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ed1f651b | 1 | /* Compiler driver program that can handle many languages. |
98db73df | 2 | Copyright (C) 1987-2014 Free Software Foundation, Inc. |
ed1f651b | 3 | |
1322177d | 4 | This file is part of GCC. |
ed1f651b | 5 | |
1322177d LB |
6 | GCC is free software; you can redistribute it and/or modify it under |
7 | the terms of the GNU General Public License as published by the Free | |
9dcd6f09 | 8 | Software Foundation; either version 3, or (at your option) any later |
1322177d | 9 | version. |
ed1f651b | 10 | |
1322177d LB |
11 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 | for more details. | |
ed1f651b RS |
15 | |
16 | You should have received a copy of the GNU General Public License | |
9dcd6f09 | 17 | along with GCC; see the file COPYING3. If not see |
8a554c70 | 18 | <http://www.gnu.org/licenses/>. */ |
ed1f651b RS |
19 | |
20 | /* This program is the user interface to the C compiler and possibly to | |
21 | other compilers. It is used because compilation is a complicated procedure | |
22 | which involves running several programs and passing temporary files between | |
23 | them, forwarding the users switches to those programs selectively, | |
24 | and deleting the temporary files at the end. | |
25 | ||
26 | CC recognizes how to compile each input file by suffixes in the file names. | |
27 | Once it knows which kind of compilation to perform, the procedure for | |
28 | compilation is specified by a string called a "spec". */ | |
c5c76735 | 29 | |
e9a25f70 | 30 | #include "config.h" |
670ee920 | 31 | #include "system.h" |
4977bab6 | 32 | #include "coretypes.h" |
1713a69f | 33 | #include "multilib.h" /* before tm.h */ |
4977bab6 | 34 | #include "tm.h" |
ed5b9f96 | 35 | #include "xregex.h" |
17248a6b | 36 | #include "obstack.h" |
ab87f8c8 | 37 | #include "intl.h" |
460ee112 | 38 | #include "prefix.h" |
9257393c | 39 | #include "gcc.h" |
6afbc885 | 40 | #include "diagnostic.h" |
8a63621f | 41 | #include "flags.h" |
14c7833c | 42 | #include "opts.h" |
a7d0d30f | 43 | #include "params.h" |
5b634ee0 | 44 | #include "vec.h" |
ba78087b | 45 | #include "filenames.h" |
c10d53dd | 46 | |
45936a85 DD |
47 | /* By default there is no special suffix for target executables. */ |
48 | /* FIXME: when autoconf is fixed, remove the host check - dj */ | |
49 | #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX) | |
50 | #define HAVE_TARGET_EXECUTABLE_SUFFIX | |
ed1f651b | 51 | #endif |
f6ec7e54 | 52 | |
45936a85 DD |
53 | /* By default there is no special suffix for host executables. */ |
54 | #ifdef HOST_EXECUTABLE_SUFFIX | |
55 | #define HAVE_HOST_EXECUTABLE_SUFFIX | |
f70165f6 | 56 | #else |
45936a85 DD |
57 | #define HOST_EXECUTABLE_SUFFIX "" |
58 | #endif | |
59 | ||
60 | /* By default, the suffix for target object files is ".o". */ | |
61 | #ifdef TARGET_OBJECT_SUFFIX | |
62 | #define HAVE_TARGET_OBJECT_SUFFIX | |
63 | #else | |
64 | #define TARGET_OBJECT_SUFFIX ".o" | |
ed7dae04 RK |
65 | #endif |
66 | ||
8b60264b | 67 | static const char dir_separator_str[] = { DIR_SEPARATOR, 0 }; |
48ff801b | 68 | |
512b62fb JM |
69 | /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */ |
70 | #ifndef LIBRARY_PATH_ENV | |
71 | #define LIBRARY_PATH_ENV "LIBRARY_PATH" | |
72 | #endif | |
73 | ||
ed1f651b RS |
74 | /* If a stage of compilation returns an exit status >= 1, |
75 | compilation of that file ceases. */ | |
76 | ||
77 | #define MIN_FATAL_STATUS 1 | |
78 | ||
69927b59 NB |
79 | /* Flag set by cppspec.c to 1. */ |
80 | int is_cpp_driver; | |
81 | ||
110abdbc | 82 | /* Flag set to nonzero if an @file argument has been supplied to gcc. */ |
2091ff66 NF |
83 | static bool at_file_supplied; |
84 | ||
f5fa9a5b PE |
85 | /* Definition of string containing the arguments given to configure. */ |
86 | #include "configargs.h" | |
87 | ||
b8468bc7 NC |
88 | /* Flag saying to print the command line options understood by gcc and its |
89 | sub-processes. */ | |
90 | ||
91 | static int print_help_list; | |
92 | ||
41fd0f9b RAE |
93 | /* Flag saying to print the version of gcc and its sub-processes. */ |
94 | ||
95 | static int print_version; | |
96 | ||
99f78cdd IR |
97 | /* Flag indicating whether we should ONLY print the command and |
98 | arguments (like verbose_flag) without executing the command. | |
99 | Displayed arguments are quoted so that the generated command | |
100 | line is suitable for execution. This is intended for use in | |
101 | shell scripts to capture the driver-generated command line. */ | |
102 | static int verbose_only_flag; | |
103 | ||
c662432e | 104 | /* Flag indicating how to print command line options of sub-processes. */ |
91606ce2 | 105 | |
c662432e | 106 | static int print_subprocess_help; |
91606ce2 | 107 | |
b78e932d L |
108 | /* Linker suffix passed to -fuse-ld=... */ |
109 | static const char *use_ld; | |
110 | ||
bdde878c AO |
111 | /* Whether we should report subprocess execution times to a file. */ |
112 | ||
113 | FILE *report_times_to_file = NULL; | |
114 | ||
4977bab6 ZW |
115 | /* Nonzero means place this string before uses of /, so that include |
116 | and library files can be found in an alternate location. */ | |
117 | ||
db720d9a | 118 | #ifdef TARGET_SYSTEM_ROOT |
4977bab6 | 119 | static const char *target_system_root = TARGET_SYSTEM_ROOT; |
db720d9a DJ |
120 | #else |
121 | static const char *target_system_root = 0; | |
122 | #endif | |
4977bab6 | 123 | |
047d636f DJ |
124 | /* Nonzero means pass the updated target_system_root to the compiler. */ |
125 | ||
126 | static int target_system_root_changed; | |
127 | ||
e7f13528 GP |
128 | /* Nonzero means append this string to target_system_root. */ |
129 | ||
130 | static const char *target_sysroot_suffix = 0; | |
131 | ||
132 | /* Nonzero means append this string to target_system_root for headers. */ | |
133 | ||
134 | static const char *target_sysroot_hdrs_suffix = 0; | |
135 | ||
ed1f651b RS |
136 | /* Nonzero means write "temp" files in source directory |
137 | and use the source file's name in them, and don't delete them. */ | |
138 | ||
14fdc613 MM |
139 | static enum save_temps { |
140 | SAVE_TEMPS_NONE, /* no -save-temps */ | |
141 | SAVE_TEMPS_CWD, /* -save-temps in current directory */ | |
142 | SAVE_TEMPS_OBJ /* -save-temps in object directory */ | |
143 | } save_temps_flag; | |
144 | ||
145 | /* Output file to use to get the object directory for -save-temps=obj */ | |
146 | static char *save_temps_prefix = 0; | |
147 | static size_t save_temps_length = 0; | |
ed1f651b | 148 | |
53117a2f | 149 | /* The compiler version. */ |
ed1f651b | 150 | |
3b304f5b | 151 | static const char *compiler_version; |
53117a2f | 152 | |
1401cf37 | 153 | /* The target version. */ |
53117a2f | 154 | |
37a4aa31 | 155 | static const char *const spec_version = DEFAULT_TARGET_VERSION; |
ed1f651b | 156 | |
1401cf37 | 157 | /* The target machine. */ |
ed1f651b | 158 | |
878f32c3 | 159 | static const char *spec_machine = DEFAULT_TARGET_MACHINE; |
ed1f651b | 160 | |
004fd4d5 RS |
161 | /* Nonzero if cross-compiling. |
162 | When -b is used, the value comes from the `specs' file. */ | |
163 | ||
2989d30c | 164 | #ifdef CROSS_DIRECTORY_STRUCTURE |
3b304f5b | 165 | static const char *cross_compile = "1"; |
004fd4d5 | 166 | #else |
3b304f5b | 167 | static const char *cross_compile = "0"; |
004fd4d5 RS |
168 | #endif |
169 | ||
14a774a9 RK |
170 | /* Greatest exit code of sub-processes that has been encountered up to |
171 | now. */ | |
172 | static int greatest_status = 1; | |
173 | ||
ed1f651b RS |
174 | /* This is the obstack which we use to allocate many strings. */ |
175 | ||
176 | static struct obstack obstack; | |
177 | ||
b3865ca9 | 178 | /* This is the obstack to build an environment variable to pass to |
6dc42e49 | 179 | collect2 that describes all of the relevant switches of what to |
b3865ca9 RS |
180 | pass the compiler in building the list of pointers to constructors |
181 | and destructors. */ | |
182 | ||
183 | static struct obstack collect_obstack; | |
184 | ||
99360286 DE |
185 | /* Forward declaration for prototypes. */ |
186 | struct path_prefix; | |
76391e5a | 187 | struct prefix_list; |
99360286 | 188 | |
1d088dee AJ |
189 | static void init_spec (void); |
190 | static void store_arg (const char *, int, int); | |
fe7df9c4 | 191 | static void insert_wrapper (const char *); |
1d088dee | 192 | static char *load_specs (const char *); |
d168aaee CB |
193 | static void read_specs (const char *, bool, bool); |
194 | static void set_spec (const char *, const char *, bool); | |
1d088dee | 195 | static struct compiler *lookup_compiler (const char *, size_t, const char *); |
00dcee0c AM |
196 | static char *build_search_list (const struct path_prefix *, const char *, |
197 | bool, bool); | |
e9c15f6e | 198 | static void xputenv (const char *); |
00dcee0c AM |
199 | static void putenv_from_prefixes (const struct path_prefix *, const char *, |
200 | bool); | |
1d088dee | 201 | static int access_check (const char *, int); |
00dcee0c | 202 | static char *find_a_file (const struct path_prefix *, const char *, int, bool); |
1d088dee | 203 | static void add_prefix (struct path_prefix *, const char *, const char *, |
1a5d37a1 | 204 | int, int, int); |
1d088dee | 205 | static void add_sysrooted_prefix (struct path_prefix *, const char *, |
1a5d37a1 | 206 | const char *, int, int, int); |
1d088dee AJ |
207 | static char *skip_whitespace (char *); |
208 | static void delete_if_ordinary (const char *); | |
209 | static void delete_temp_files (void); | |
210 | static void delete_failure_queue (void); | |
211 | static void clear_failure_queue (void); | |
212 | static int check_live_switch (int, int); | |
213 | static const char *handle_braces (const char *); | |
214 | static inline bool input_suffix_matches (const char *, const char *); | |
215 | static inline bool switch_matches (const char *, const char *, int); | |
216 | static inline void mark_matching_switches (const char *, const char *, int); | |
217 | static inline void process_marked_switches (void); | |
218 | static const char *process_brace_body (const char *, const char *, const char *, int, int); | |
219 | static const struct spec_function *lookup_spec_function (const char *); | |
220 | static const char *eval_spec_function (const char *, const char *); | |
de5a5fa1 | 221 | static const char *handle_spec_function (const char *, bool *); |
1d088dee AJ |
222 | static char *save_string (const char *, int); |
223 | static void set_collect_gcc_options (void); | |
224 | static int do_spec_1 (const char *, int, const char *); | |
225 | static int do_spec_2 (const char *); | |
226 | static void do_option_spec (const char *, const char *); | |
227 | static void do_self_spec (const char *); | |
228 | static const char *find_file (const char *); | |
00dcee0c | 229 | static int is_directory (const char *, bool); |
d168aaee | 230 | static const char *validate_switches (const char *, bool); |
1d088dee | 231 | static void validate_all_switches (void); |
d168aaee | 232 | static inline void validate_switches_from_spec (const char *, bool); |
1d088dee AJ |
233 | static void give_switch (int, int); |
234 | static int used_arg (const char *, int); | |
235 | static int default_arg (const char *, int); | |
236 | static void set_multilib_dir (void); | |
237 | static void print_multilib_info (void); | |
238 | static void perror_with_name (const char *); | |
1d088dee AJ |
239 | static void display_help (void); |
240 | static void add_preprocessor_option (const char *, int); | |
241 | static void add_assembler_option (const char *, int); | |
242 | static void add_linker_option (const char *, int); | |
60cf253a | 243 | static void process_command (unsigned int, struct cl_decoded_option *); |
1d088dee AJ |
244 | static int execute (void); |
245 | static void alloc_args (void); | |
246 | static void clear_args (void); | |
2dec80c7 | 247 | static void fatal_signal (int); |
328163dc | 248 | #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC) |
1d088dee AJ |
249 | static void init_gcc_specs (struct obstack *, const char *, const char *, |
250 | const char *); | |
6894579f | 251 | #endif |
40cdfca6 | 252 | #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX) |
1d088dee | 253 | static const char *convert_filename (const char *, int, int); |
40cdfca6 | 254 | #endif |
f3226a90 | 255 | |
1120a850 | 256 | static void try_generate_repro (const char **argv); |
30d8946b | 257 | static const char *getenv_spec_function (int, const char **); |
1d088dee AJ |
258 | static const char *if_exists_spec_function (int, const char **); |
259 | static const char *if_exists_else_spec_function (int, const char **); | |
de5a5fa1 | 260 | static const char *sanitize_spec_function (int, const char **); |
3dd53121 | 261 | static const char *replace_outfile_spec_function (int, const char **); |
2642f659 | 262 | static const char *remove_outfile_spec_function (int, const char **); |
ed5b9f96 | 263 | static const char *version_compare_spec_function (int, const char **); |
953ff289 | 264 | static const char *include_spec_function (int, const char **); |
4adbd5dd | 265 | static const char *find_file_spec_function (int, const char **); |
c1ce46a5 | 266 | static const char *find_plugindir_spec_function (int, const char **); |
a0f87454 | 267 | static const char *print_asm_header_spec_function (int, const char **); |
2153915d AO |
268 | static const char *compare_debug_dump_opt_spec_function (int, const char **); |
269 | static const char *compare_debug_self_opt_spec_function (int, const char **); | |
270 | static const char *compare_debug_auxbase_opt_spec_function (int, const char **); | |
9a37bc07 | 271 | static const char *pass_through_libs_spec_func (int, const char **); |
99ea153e | 272 | static const char *replace_extension_spec_func (int, const char **); |
3c27ce4c | 273 | static char *convert_white_space (char *); |
ed1f651b | 274 | \f |
d991c721 BK |
275 | /* The Specs Language |
276 | ||
277 | Specs are strings containing lines, each of which (if not blank) | |
ed1f651b RS |
278 | is made up of a program name, and arguments separated by spaces. |
279 | The program name must be exact and start from root, since no path | |
280 | is searched and it is unreliable to depend on the current working directory. | |
281 | Redirection of input or output is not supported; the subprograms must | |
282 | accept filenames saying what files to read and write. | |
283 | ||
284 | In addition, the specs can contain %-sequences to substitute variable text | |
285 | or for conditional text. Here is a table of all defined %-sequences. | |
286 | Note that spaces are not generated automatically around the results of | |
287 | expanding these sequences; therefore, you can concatenate them together | |
288 | or with constant text in a single argument. | |
289 | ||
290 | %% substitute one % into the program name or argument. | |
291 | %i substitute the name of the input file being processed. | |
292 | %b substitute the basename of the input file being processed. | |
293 | This is the substring up to (and not including) the last period | |
14fdc613 | 294 | and not including the directory unless -save-temps was specified |
3beb864c | 295 | to put temporaries in a different location. |
ea414c97 | 296 | %B same as %b, but include the file suffix (text after the last period). |
dd75c292 CB |
297 | %gSUFFIX |
298 | substitute a file name that has suffix SUFFIX and is chosen | |
299 | once per compilation, and mark the argument a la %d. To reduce | |
300 | exposure to denial-of-service attacks, the file name is now | |
301 | chosen in a way that is hard to predict even when previously | |
302 | chosen file names are known. For example, `%g.s ... %g.o ... %g.s' | |
303 | might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches | |
a92dd235 | 304 | the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it |
a1d9074c TT |
305 | had been pre-processed. Previously, %g was simply substituted |
306 | with a file name chosen once per compilation, without regard | |
307 | to any appended suffix (which was therefore treated just like | |
308 | ordinary text), making such attacks more likely to succeed. | |
4977bab6 ZW |
309 | %|SUFFIX |
310 | like %g, but if -pipe is in effect, expands simply to "-". | |
311 | %mSUFFIX | |
312 | like %g, but if -pipe is in effect, expands to nothing. (We have both | |
313 | %| and %m to accommodate differences between system assemblers; see | |
314 | the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.) | |
dd75c292 CB |
315 | %uSUFFIX |
316 | like %g, but generates a new temporary file name even if %uSUFFIX | |
317 | was already seen. | |
318 | %USUFFIX | |
319 | substitutes the last file name generated with %uSUFFIX, generating a | |
320 | new one if there is no such last file name. In the absence of any | |
321 | %uSUFFIX, this is just like %gSUFFIX, except they don't share | |
322 | the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s' | |
323 | would involve the generation of two distinct file names, one | |
324 | for each `%g.s' and another for each `%U.s'. Previously, %U was | |
325 | simply substituted with a file name chosen for the previous %u, | |
326 | without regard to any appended suffix. | |
49009afd JL |
327 | %jSUFFIX |
328 | substitutes the name of the HOST_BIT_BUCKET, if any, and if it is | |
329 | writable, and if save-temps is off; otherwise, substitute the name | |
330 | of a temporary file, just like %u. This temporary file is not | |
331 | meant for communication between processes, but rather as a junk | |
332 | disposal mechanism. | |
11972f66 NS |
333 | %.SUFFIX |
334 | substitutes .SUFFIX for the suffixes of a matched switch's args when | |
335 | it is subsequently output with %*. SUFFIX is terminated by the next | |
336 | space or %. | |
ed1f651b | 337 | %d marks the argument containing or following the %d as a |
ee618c17 | 338 | temporary file name, so that that file will be deleted if GCC exits |
ed1f651b RS |
339 | successfully. Unlike %g, this contributes no text to the argument. |
340 | %w marks the argument containing or following the %w as the | |
341 | "output file" of this compilation. This puts the argument | |
342 | into the sequence of arguments that %o will substitute later. | |
17211ab5 | 343 | %V indicates that this compilation produces no "output file". |
ed1f651b RS |
344 | %W{...} |
345 | like %{...} but mark last argument supplied within | |
346 | as a file to be deleted on failure. | |
347 | %o substitutes the names of all the output files, with spaces | |
348 | automatically placed around them. You should write spaces | |
349 | around the %o as well or the results are undefined. | |
350 | %o is for use in the specs for running the linker. | |
351 | Input files whose names have no recognized suffix are not compiled | |
352 | at all, but they are included among the output files, so they will | |
353 | be linked. | |
dd75c292 | 354 | %O substitutes the suffix for object files. Note that this is |
a1d9074c TT |
355 | handled specially when it immediately follows %g, %u, or %U |
356 | (with or without a suffix argument) because of the need for | |
357 | those to form complete file names. The handling is such that | |
358 | %O is treated exactly as if it had already been substituted, | |
359 | except that %g, %u, and %U do not currently support additional | |
360 | SUFFIX characters following %O as they would following, for | |
361 | example, `.o'. | |
047d636f | 362 | %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot |
2b6dd222 JM |
363 | (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH |
364 | and -B options) and -imultilib as necessary. | |
ed1f651b RS |
365 | %s current argument is the name of a library or startup file of some sort. |
366 | Search for that file in a standard list of directories | |
367 | and substitute the full name found. | |
368 | %eSTR Print STR as an error message. STR is terminated by a newline. | |
369 | Use this when inconsistent options are detected. | |
09da1532 | 370 | %nSTR Print STR as a notice. STR is terminated by a newline. |
ed1f651b RS |
371 | %x{OPTION} Accumulate an option for %X. |
372 | %X Output the accumulated linker options specified by compilations. | |
c9ebacb8 | 373 | %Y Output the accumulated assembler options specified by compilations. |
57cb9b60 | 374 | %Z Output the accumulated preprocessor options specified by compilations. |
ed1f651b RS |
375 | %a process ASM_SPEC as a spec. |
376 | This allows config.h to specify part of the spec for running as. | |
377 | %A process ASM_FINAL_SPEC as a spec. A capital A is actually | |
378 | used here. This can be used to run a post-processor after the | |
9ec36da5 | 379 | assembler has done its job. |
48ff801b | 380 | %D Dump out a -L option for each directory in startfile_prefixes. |
60103a34 | 381 | If multilib_dir is set, extra entries are generated with it affixed. |
ed1f651b RS |
382 | %l process LINK_SPEC as a spec. |
383 | %L process LIB_SPEC as a spec. | |
3cd50158 | 384 | %M Output multilib_os_dir. |
68d69835 | 385 | %G process LIBGCC_SPEC as a spec. |
380e5ca4 MM |
386 | %R Output the concatenation of target_system_root and |
387 | target_sysroot_suffix. | |
ed1f651b RS |
388 | %S process STARTFILE_SPEC as a spec. A capital S is actually used here. |
389 | %E process ENDFILE_SPEC as a spec. A capital E is actually used here. | |
9db0819e | 390 | %C process CPP_SPEC as a spec. |
ed1f651b RS |
391 | %1 process CC1_SPEC as a spec. |
392 | %2 process CC1PLUS_SPEC as a spec. | |
393 | %* substitute the variable part of a matched option. (See below.) | |
394 | Note that each comma in the substituted string is replaced by | |
25990163 NC |
395 | a single space. A space is appended after the last substition |
396 | unless there is more text in current sequence. | |
4977bab6 ZW |
397 | %<S remove all occurrences of -S from the command line. |
398 | Note - this command is position dependent. % commands in the | |
399 | spec string before this one will see -S, % commands in the | |
400 | spec string after this one will not. | |
96f5b137 | 401 | %>S Similar to "%<S", but keep it in the GCC command line. |
4977bab6 ZW |
402 | %<S* remove all occurrences of all switches beginning with -S from the |
403 | command line. | |
f3226a90 JT |
404 | %:function(args) |
405 | Call the named function FUNCTION, passing it ARGS. ARGS is | |
406 | first processed as a nested spec string, then split into an | |
407 | argument vector in the usual fashion. The function returns | |
408 | a string which is processed as if it had appeared literally | |
409 | as part of the current spec. | |
ee618c17 | 410 | %{S} substitutes the -S switch, if that switch was given to GCC. |
ed1f651b RS |
411 | If that switch was not specified, this substitutes nothing. |
412 | Here S is a metasyntactic variable. | |
ee618c17 | 413 | %{S*} substitutes all the switches specified to GCC whose names start |
196a37f4 | 414 | with -S. This is used for -o, -I, etc; switches that take |
ee618c17 | 415 | arguments. GCC considers `-o foo' as being one switch whose |
ed1f651b RS |
416 | name starts with `o'. %{o*} would substitute this text, |
417 | including the space; thus, two arguments would be generated. | |
196a37f4 | 418 | %{S*&T*} likewise, but preserve order of S and T options (the order |
1d088dee AJ |
419 | of S and T in the spec is not significant). Can be any number |
420 | of ampersand-separated variables; for each the wild card is | |
421 | optional. Useful for CPP as %{D*&U*&A*}. | |
4977bab6 | 422 | |
ee618c17 BE |
423 | %{S:X} substitutes X, if the -S switch was given to GCC. |
424 | %{!S:X} substitutes X, if the -S switch was NOT given to GCC. | |
4977bab6 | 425 | %{S*:X} substitutes X if one or more switches whose names start |
ee618c17 | 426 | with -S was given to GCC. Normally X is substituted only |
4977bab6 ZW |
427 | once, no matter how many such switches appeared. However, |
428 | if %* appears somewhere in X, then X will be substituted | |
429 | once for each matching switch, with the %* replaced by the | |
25990163 NC |
430 | part of that switch that matched the '*'. A space will be |
431 | appended after the last substition unless there is more | |
432 | text in current sequence. | |
4977bab6 ZW |
433 | %{.S:X} substitutes X, if processing a file with suffix S. |
434 | %{!.S:X} substitutes X, if NOT processing a file with suffix S. | |
48137d59 GK |
435 | %{,S:X} substitutes X, if processing a file which will use spec S. |
436 | %{!,S:X} substitutes X, if NOT processing a file which will use spec S. | |
3beb864c | 437 | |
ee618c17 | 438 | %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be |
48137d59 GK |
439 | combined with '!', '.', ',', and '*' as above binding stronger |
440 | than the OR. | |
4977bab6 ZW |
441 | If %* appears in X, all of the alternatives must be starred, and |
442 | only the first matching alternative is substituted. | |
de5a5fa1 MP |
443 | %{%:function(args):X} |
444 | Call function named FUNCTION with args ARGS. If the function | |
445 | returns non-NULL, then X is substituted, if it returns | |
446 | NULL, it isn't substituted. | |
ee618c17 BE |
447 | %{S:X; if S was given to GCC, substitutes X; |
448 | T:Y; else if T was given to GCC, substitutes Y; | |
4977bab6 | 449 | :D} else substitutes D. There can be as many clauses as you need. |
48137d59 | 450 | This may be combined with '.', '!', ',', '|', and '*' as above. |
4977bab6 | 451 | |
b3865ca9 | 452 | %(Spec) processes a specification defined in a specs file as *Spec: |
ed1f651b | 453 | |
4977bab6 | 454 | The conditional text X in a %{S:X} or similar construct may contain |
ed1f651b | 455 | other nested % constructs or spaces, or even newlines. They are |
4977bab6 ZW |
456 | processed as usual, as described above. Trailing white space in X is |
457 | ignored. White space may also appear anywhere on the left side of the | |
458 | colon in these constructs, except between . or * and the corresponding | |
459 | word. | |
ed1f651b | 460 | |
99ea153e | 461 | The -O, -f, -g, -m, and -W switches are handled specifically in these |
f5b0eb4e RK |
462 | constructs. If another value of -O or the negated form of a -f, -m, or |
463 | -W switch is found later in the command line, the earlier switch | |
6c396fb5 RK |
464 | value is ignored, except with {S*} where S is just one letter; this |
465 | passes all matching options. | |
f5b0eb4e | 466 | |
9bf09437 RH |
467 | The character | at the beginning of the predicate text is used to indicate |
468 | that a command should be piped to the following command, but only if -pipe | |
469 | is specified. | |
ed1f651b | 470 | |
ee618c17 | 471 | Note that it is built into GCC which switches take arguments and which |
ed1f651b RS |
472 | do not. You might think it would be useful to generalize this to |
473 | allow each compiler's spec to say which switches take arguments. But | |
ee618c17 | 474 | this cannot be done in a consistent fashion. GCC cannot even decide |
ed1f651b RS |
475 | which input files have been specified without knowing which switches |
476 | take arguments, and it must know which input files to compile in order | |
477 | to tell which compilers to run. | |
478 | ||
ee618c17 | 479 | GCC also knows implicitly that arguments starting in `-l' are to be |
ed1f651b RS |
480 | treated as compiler output files, and passed to the linker in their |
481 | proper position among the other output files. */ | |
482 | \f | |
0fef3fd0 | 483 | /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */ |
ed1f651b RS |
484 | |
485 | /* config.h can define ASM_SPEC to provide extra args to the assembler | |
486 | or extra switch-translations. */ | |
487 | #ifndef ASM_SPEC | |
488 | #define ASM_SPEC "" | |
489 | #endif | |
490 | ||
491 | /* config.h can define ASM_FINAL_SPEC to run a post processor after | |
492 | the assembler has run. */ | |
493 | #ifndef ASM_FINAL_SPEC | |
99ea153e SA |
494 | #define ASM_FINAL_SPEC \ |
495 | "%{gsplit-dwarf: \n\ | |
496 | objcopy --extract-dwo \ | |
497 | %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \ | |
498 | %{c:%{o*:%:replace-extension(%{o*:%*} .dwo)}%{!o*:%b.dwo}}%{!c:%b.dwo} \n\ | |
499 | objcopy --strip-dwo \ | |
500 | %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \ | |
501 | }" | |
ed1f651b RS |
502 | #endif |
503 | ||
504 | /* config.h can define CPP_SPEC to provide extra args to the C preprocessor | |
505 | or extra switch-translations. */ | |
506 | #ifndef CPP_SPEC | |
507 | #define CPP_SPEC "" | |
508 | #endif | |
509 | ||
510 | /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus | |
511 | or extra switch-translations. */ | |
512 | #ifndef CC1_SPEC | |
513 | #define CC1_SPEC "" | |
514 | #endif | |
515 | ||
516 | /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus | |
517 | or extra switch-translations. */ | |
518 | #ifndef CC1PLUS_SPEC | |
519 | #define CC1PLUS_SPEC "" | |
520 | #endif | |
521 | ||
522 | /* config.h can define LINK_SPEC to provide extra args to the linker | |
523 | or extra switch-translations. */ | |
524 | #ifndef LINK_SPEC | |
525 | #define LINK_SPEC "" | |
526 | #endif | |
527 | ||
528 | /* config.h can define LIB_SPEC to override the default libraries. */ | |
529 | #ifndef LIB_SPEC | |
68d69835 JM |
530 | #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}" |
531 | #endif | |
532 | ||
7458026b ILT |
533 | /* When using -fsplit-stack we need to wrap pthread_create, in order |
534 | to initialize the stack guard. We always use wrapping, rather than | |
535 | shared library ordering, and we keep the wrapper function in | |
536 | libgcc. This is not yet a real spec, though it could become one; | |
537 | it is currently just stuffed into LINK_SPEC. FIXME: This wrapping | |
98906124 | 538 | only works with GNU ld and gold. */ |
7458026b ILT |
539 | #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}" |
540 | ||
7e8d1b2d | 541 | #ifndef LIBASAN_SPEC |
35814b03 JJ |
542 | #define STATIC_LIBASAN_LIBS \ |
543 | " %{static-libasan:%:include(libsanitizer.spec)%(link_libasan)}" | |
e60e09a0 | 544 | #ifdef LIBASAN_EARLY_SPEC |
35814b03 | 545 | #define LIBASAN_SPEC STATIC_LIBASAN_LIBS |
e60e09a0 | 546 | #elif defined(HAVE_LD_STATIC_DYNAMIC) |
7e8d1b2d | 547 | #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \ |
03d670c8 | 548 | "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \ |
35814b03 | 549 | STATIC_LIBASAN_LIBS |
7e8d1b2d | 550 | #else |
35814b03 | 551 | #define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS |
7e8d1b2d L |
552 | #endif |
553 | #endif | |
554 | ||
e60e09a0 JJ |
555 | #ifndef LIBASAN_EARLY_SPEC |
556 | #define LIBASAN_EARLY_SPEC "" | |
557 | #endif | |
558 | ||
32b4b7f5 | 559 | #ifndef LIBTSAN_SPEC |
35814b03 JJ |
560 | #define STATIC_LIBTSAN_LIBS \ |
561 | " %{static-libtsan:%:include(libsanitizer.spec)%(link_libtsan)}" | |
a74db9bd | 562 | #ifdef LIBTSAN_EARLY_SPEC |
35814b03 | 563 | #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS |
a74db9bd | 564 | #elif defined(HAVE_LD_STATIC_DYNAMIC) |
32b4b7f5 | 565 | #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \ |
a74db9bd | 566 | "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \ |
35814b03 | 567 | STATIC_LIBTSAN_LIBS |
32b4b7f5 | 568 | #else |
35814b03 | 569 | #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS |
a74db9bd | 570 | #endif |
32b4b7f5 | 571 | #endif |
a74db9bd JJ |
572 | |
573 | #ifndef LIBTSAN_EARLY_SPEC | |
574 | #define LIBTSAN_EARLY_SPEC "" | |
32b4b7f5 DV |
575 | #endif |
576 | ||
9065ada9 | 577 | #ifndef LIBLSAN_SPEC |
35814b03 JJ |
578 | #define STATIC_LIBLSAN_LIBS \ |
579 | " %{static-liblsan:%:include(libsanitizer.spec)%(link_liblsan)}" | |
d30c7670 JJ |
580 | #ifdef LIBLSAN_EARLY_SPEC |
581 | #define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS | |
582 | #elif defined(HAVE_LD_STATIC_DYNAMIC) | |
583 | #define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION \ | |
9065ada9 | 584 | "} -llsan %{static-liblsan:" LD_DYNAMIC_OPTION "}" \ |
d30c7670 | 585 | STATIC_LIBLSAN_LIBS |
9065ada9 | 586 | #else |
d30c7670 | 587 | #define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS |
9065ada9 JJ |
588 | #endif |
589 | #endif | |
590 | ||
d30c7670 JJ |
591 | #ifndef LIBLSAN_EARLY_SPEC |
592 | #define LIBLSAN_EARLY_SPEC "" | |
593 | #endif | |
594 | ||
de5a5fa1 | 595 | #ifndef LIBUBSAN_SPEC |
35814b03 JJ |
596 | #define STATIC_LIBUBSAN_LIBS \ |
597 | " %{static-libubsan:%:include(libsanitizer.spec)%(link_libubsan)}" | |
9065ada9 | 598 | #ifdef HAVE_LD_STATIC_DYNAMIC |
de5a5fa1 MP |
599 | #define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \ |
600 | "} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION "}" \ | |
35814b03 | 601 | STATIC_LIBUBSAN_LIBS |
de5a5fa1 | 602 | #else |
35814b03 | 603 | #define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS |
de5a5fa1 MP |
604 | #endif |
605 | #endif | |
606 | ||
29d7cbd1 RO |
607 | /* Linker options for compressed debug sections. */ |
608 | #if HAVE_LD_COMPRESS_DEBUG == 0 | |
609 | /* No linker support. */ | |
610 | #define LINK_COMPRESS_DEBUG_SPEC \ | |
611 | " %{gz*:%e-gz is not supported in this configuration} " | |
612 | #elif HAVE_LD_COMPRESS_DEBUG == 1 | |
613 | /* GNU style on input, GNU ld options. Reject, not useful. */ | |
614 | #define LINK_COMPRESS_DEBUG_SPEC \ | |
615 | " %{gz*:%e-gz is not supported in this configuration} " | |
616 | #elif HAVE_LD_COMPRESS_DEBUG == 2 | |
617 | /* GNU style, GNU gold options. */ | |
618 | #define LINK_COMPRESS_DEBUG_SPEC \ | |
619 | " %{gz|gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \ | |
620 | " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \ | |
621 | " %{gz=zlib:%e-gz=zlib is not supported in this configuration} " | |
622 | #elif HAVE_LD_COMPRESS_DEBUG == 3 | |
623 | /* ELF gABI style. */ | |
624 | #define LINK_COMPRESS_DEBUG_SPEC \ | |
625 | " %{gz|gz=zlib:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \ | |
626 | " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \ | |
627 | " %{gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib-gnu} " | |
628 | #else | |
629 | #error Unknown value for HAVE_LD_COMPRESS_DEBUG. | |
630 | #endif | |
631 | ||
68d69835 JM |
632 | /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is |
633 | included. */ | |
634 | #ifndef LIBGCC_SPEC | |
328163dc MA |
635 | #if defined(REAL_LIBGCC_SPEC) |
636 | #define LIBGCC_SPEC REAL_LIBGCC_SPEC | |
57642751 | 637 | #elif defined(LINK_LIBGCC_SPECIAL_1) |
68d69835 | 638 | /* Have gcc do the search for libgcc.a. */ |
ba2b7435 | 639 | #define LIBGCC_SPEC "libgcc.a%s" |
68d69835 | 640 | #else |
ba2b7435 | 641 | #define LIBGCC_SPEC "-lgcc" |
68d69835 | 642 | #endif |
ed1f651b RS |
643 | #endif |
644 | ||
645 | /* config.h can define STARTFILE_SPEC to override the default crt0 files. */ | |
646 | #ifndef STARTFILE_SPEC | |
647 | #define STARTFILE_SPEC \ | |
adcb8d7d | 648 | "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}" |
ed1f651b RS |
649 | #endif |
650 | ||
ed1f651b RS |
651 | /* config.h can define ENDFILE_SPEC to override the default crtn files. */ |
652 | #ifndef ENDFILE_SPEC | |
653 | #define ENDFILE_SPEC "" | |
654 | #endif | |
655 | ||
10da1131 BM |
656 | #ifndef LINKER_NAME |
657 | #define LINKER_NAME "collect2" | |
658 | #endif | |
659 | ||
c8aea42c PB |
660 | #ifdef HAVE_AS_DEBUG_PREFIX_MAP |
661 | #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}" | |
662 | #else | |
663 | #define ASM_MAP "" | |
664 | #endif | |
665 | ||
29d7cbd1 RO |
666 | /* Assembler options for compressed debug sections. */ |
667 | #if HAVE_LD_COMPRESS_DEBUG < 2 | |
668 | /* Reject if the linker cannot write compressed debug sections. */ | |
669 | #define ASM_COMPRESS_DEBUG_SPEC \ | |
670 | " %{gz*:%e-gz is not supported in this configuration} " | |
671 | #else /* HAVE_LD_COMPRESS_DEBUG >= 2 */ | |
672 | #if HAVE_AS_COMPRESS_DEBUG == 0 | |
673 | /* No assembler support. Ignore silently. */ | |
674 | #define ASM_COMPRESS_DEBUG_SPEC \ | |
675 | " %{gz*:} " | |
676 | #elif HAVE_AS_COMPRESS_DEBUG == 1 | |
677 | /* GNU style, GNU as options. */ | |
678 | #define ASM_COMPRESS_DEBUG_SPEC \ | |
679 | " %{gz|gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "}" \ | |
680 | " %{gz=none:" AS_NO_COMPRESS_DEBUG_OPTION "}" \ | |
681 | " %{gz=zlib:%e-gz=zlib is not supported in this configuration} " | |
682 | #elif HAVE_AS_COMPRESS_DEBUG == 2 | |
683 | /* ELF gABI style. */ | |
684 | #define ASM_COMPRESS_DEBUG_SPEC \ | |
685 | " %{gz|gz=zlib:" AS_COMPRESS_DEBUG_OPTION "=zlib}" \ | |
686 | " %{gz=none:" AS_COMPRESS_DEBUG_OPTION "=none}" \ | |
687 | " %{gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "=zlib-gnu} " | |
688 | #else | |
689 | #error Unknown value for HAVE_AS_COMPRESS_DEBUG. | |
690 | #endif | |
691 | #endif /* HAVE_LD_COMPRESS_DEBUG >= 2 */ | |
692 | ||
5f0e9ea2 GK |
693 | /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g' |
694 | to the assembler. */ | |
695 | #ifndef ASM_DEBUG_SPEC | |
b2ace8a4 JJ |
696 | # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \ |
697 | && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG) | |
c8aea42c PB |
698 | # define ASM_DEBUG_SPEC \ |
699 | (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \ | |
6782438d | 700 | ? "%{!g0:%{gdwarf*:--gdwarf2}%{!gdwarf*:%{g*:--gstabs}}}" ASM_MAP \ |
c7b94907 | 701 | : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP) |
b2ace8a4 JJ |
702 | # else |
703 | # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG) | |
c7b94907 | 704 | # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP |
b2ace8a4 JJ |
705 | # endif |
706 | # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) | |
c7b94907 | 707 | # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP |
5f0e9ea2 | 708 | # endif |
5f0e9ea2 GK |
709 | # endif |
710 | #endif | |
8a63621f JJ |
711 | #ifndef ASM_DEBUG_SPEC |
712 | # define ASM_DEBUG_SPEC "" | |
713 | #endif | |
5f0e9ea2 | 714 | |
ea414c97 ZW |
715 | /* Here is the spec for running the linker, after compiling all files. */ |
716 | ||
bbd7687d DM |
717 | /* This is overridable by the target in case they need to specify the |
718 | -lgcc and -lc order specially, yet not require them to override all | |
719 | of LINK_COMMAND_SPEC. */ | |
720 | #ifndef LINK_GCC_C_SEQUENCE_SPEC | |
721 | #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G" | |
722 | #endif | |
723 | ||
77008252 JJ |
724 | #ifndef LINK_SSP_SPEC |
725 | #ifdef TARGET_LIBC_PROVIDES_SSP | |
726 | #define LINK_SSP_SPEC "%{fstack-protector:}" | |
727 | #else | |
f6bc1c4a | 728 | #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-strong|fstack-protector-all:-lssp_nonshared -lssp}" |
77008252 JJ |
729 | #endif |
730 | #endif | |
731 | ||
24a4dd31 JJ |
732 | #ifndef LINK_PIE_SPEC |
733 | #ifdef HAVE_LD_PIE | |
734 | #define LINK_PIE_SPEC "%{pie:-pie} " | |
735 | #else | |
736 | #define LINK_PIE_SPEC "%{pie:} " | |
737 | #endif | |
738 | #endif | |
739 | ||
cd533689 PP |
740 | #ifndef LINK_BUILDID_SPEC |
741 | # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID) | |
742 | # define LINK_BUILDID_SPEC "%{!r:--build-id} " | |
743 | # endif | |
744 | #endif | |
745 | ||
55b46574 | 746 | /* Conditional to test whether the LTO plugin is used or not. |
56e22cab JH |
747 | FIXME: For slim LTO we will need to enable plugin unconditionally. This |
748 | still cause problems with PLUGIN_LD != LD and when plugin is built but | |
749 | not useable. For GCC 4.6 we don't support slim LTO and thus we can enable | |
750 | plugin only when LTO is enabled. We still honor explicit | |
55b46574 RO |
751 | -fuse-linker-plugin if the linker used understands -plugin. */ |
752 | ||
753 | /* The linker has some plugin support. */ | |
754 | #if HAVE_LTO_PLUGIN > 0 | |
755 | /* The linker used has full plugin support, use LTO plugin by default. */ | |
756 | #if HAVE_LTO_PLUGIN == 2 | |
f3ba16d0 | 757 | #define PLUGIN_COND "!fno-use-linker-plugin:%{!fno-lto" |
56e22cab | 758 | #define PLUGIN_COND_CLOSE "}" |
96bdf9b4 | 759 | #else |
55b46574 RO |
760 | /* The linker used has limited plugin support, use LTO plugin with explicit |
761 | -fuse-linker-plugin. */ | |
96bdf9b4 | 762 | #define PLUGIN_COND "fuse-linker-plugin" |
56e22cab | 763 | #define PLUGIN_COND_CLOSE "" |
96bdf9b4 | 764 | #endif |
55b46574 RO |
765 | #define LINK_PLUGIN_SPEC \ |
766 | "%{"PLUGIN_COND": \ | |
767 | -plugin %(linker_plugin_file) \ | |
768 | -plugin-opt=%(lto_wrapper) \ | |
769 | -plugin-opt=-fresolution=%u.res \ | |
770 | %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \ | |
771 | }"PLUGIN_COND_CLOSE | |
772 | #else | |
773 | /* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */ | |
774 | #define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\ | |
775 | %e-fuse-linker-plugin is not supported in this configuration}" | |
776 | #endif | |
96bdf9b4 | 777 | |
a74db9bd JJ |
778 | /* Linker command line options for -fsanitize= early on the command line. */ |
779 | #ifndef SANITIZER_EARLY_SPEC | |
780 | #define SANITIZER_EARLY_SPEC "\ | |
de5a5fa1 | 781 | %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_EARLY_SPEC "} \ |
d30c7670 JJ |
782 | %{%:sanitize(thread):" LIBTSAN_EARLY_SPEC "} \ |
783 | %{%:sanitize(leak):" LIBLSAN_EARLY_SPEC "}}}" | |
a74db9bd JJ |
784 | #endif |
785 | ||
786 | /* Linker command line options for -fsanitize= late on the command line. */ | |
787 | #ifndef SANITIZER_SPEC | |
788 | #define SANITIZER_SPEC "\ | |
de5a5fa1 | 789 | %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_SPEC "\ |
fec4842d | 790 | %{static:%ecannot specify -static with -fsanitize=address}}\ |
de5a5fa1 MP |
791 | %{%:sanitize(thread):" LIBTSAN_SPEC "\ |
792 | %{!pie:%{!shared:%e-fsanitize=thread linking must be done with -pie or -shared}}}\ | |
9065ada9 JJ |
793 | %{%:sanitize(undefined):" LIBUBSAN_SPEC "}\ |
794 | %{%:sanitize(leak):" LIBLSAN_SPEC "}}}" | |
a74db9bd | 795 | #endif |
cd533689 | 796 | |
2077db1b CT |
797 | /* This is the spec to use, once the code for creating the vtable |
798 | verification runtime library, libvtv.so, has been created. Currently | |
799 | the vtable verification runtime functions are in libstdc++, so we use | |
800 | the spec just below this one. */ | |
801 | #ifndef VTABLE_VERIFICATION_SPEC | |
802 | #define VTABLE_VERIFICATION_SPEC "\ | |
803 | %{!nostdlib:%{fvtable-verify=std: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}\ | |
804 | %{fvtable-verify=preinit: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}}" | |
805 | #endif | |
806 | ||
ea414c97 ZW |
807 | /* -u* was put back because both BSD and SysV seem to support it. */ |
808 | /* %{static:} simply prevents an error message if the target machine | |
809 | doesn't handle -static. */ | |
810 | /* We want %{T*} after %{L*} and %D so that it can be used to specify linker | |
811 | scripts which exist in user specified directories, or in standard | |
812 | directories. */ | |
014d92e1 | 813 | /* We pass any -flto flags on to the linker, which is expected |
d7f09764 | 814 | to understand them. In practice, this means it had better be collect2. */ |
fa381cb2 | 815 | /* %{e*} includes -export-dynamic; see comment in common.opt. */ |
ea414c97 ZW |
816 | #ifndef LINK_COMMAND_SPEC |
817 | #define LINK_COMMAND_SPEC "\ | |
818 | %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\ | |
55b46574 RO |
819 | %(linker) " \ |
820 | LINK_PLUGIN_SPEC \ | |
a74db9bd | 821 | "%{flto|flto=*:%<fcompare-debug*} \ |
56e22cab | 822 | %{flto} %{flto=*} %l " LINK_PIE_SPEC \ |
29d7cbd1 RO |
823 | "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \ |
824 | "%X %{o*} %{e*} %{N} %{n} %{r}\ | |
2077db1b | 825 | %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}} " VTABLE_VERIFICATION_SPEC " \ |
a74db9bd | 826 | %{static:} %{L*} %(mfwrap) %(link_libgcc) " SANITIZER_EARLY_SPEC " %o\ |
7458026b | 827 | %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}\ |
b9487dd8 | 828 | %{fcilkplus:%:include(libcilkrts.spec)%(link_cilkrts)}\ |
255a9a1b | 829 | %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\ |
7458026b | 830 | %(mflib) " STACK_SPLIT_SPEC "\ |
a74db9bd | 831 | %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \ |
9714c911 | 832 | %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\ |
12b57b0f | 833 | %{!nostdlib:%{!nostartfiles:%E}} %{T*} }}}}}}" |
ea414c97 ZW |
834 | #endif |
835 | ||
836 | #ifndef LINK_LIBGCC_SPEC | |
57642751 DJ |
837 | /* Generate -L options for startfile prefix list. */ |
838 | # define LINK_LIBGCC_SPEC "%D" | |
ea414c97 ZW |
839 | #endif |
840 | ||
343f59d9 AM |
841 | #ifndef STARTFILE_PREFIX_SPEC |
842 | # define STARTFILE_PREFIX_SPEC "" | |
843 | #endif | |
844 | ||
380e5ca4 MM |
845 | #ifndef SYSROOT_SPEC |
846 | # define SYSROOT_SPEC "--sysroot=%R" | |
847 | #endif | |
848 | ||
e7f13528 GP |
849 | #ifndef SYSROOT_SUFFIX_SPEC |
850 | # define SYSROOT_SUFFIX_SPEC "" | |
851 | #endif | |
852 | ||
853 | #ifndef SYSROOT_HEADERS_SUFFIX_SPEC | |
854 | # define SYSROOT_HEADERS_SUFFIX_SPEC "" | |
855 | #endif | |
856 | ||
b24513a1 | 857 | static const char *asm_debug = ASM_DEBUG_SPEC; |
3b304f5b | 858 | static const char *cpp_spec = CPP_SPEC; |
3b304f5b ZW |
859 | static const char *cc1_spec = CC1_SPEC; |
860 | static const char *cc1plus_spec = CC1PLUS_SPEC; | |
bbd7687d | 861 | static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC; |
77008252 | 862 | static const char *link_ssp_spec = LINK_SSP_SPEC; |
3b304f5b ZW |
863 | static const char *asm_spec = ASM_SPEC; |
864 | static const char *asm_final_spec = ASM_FINAL_SPEC; | |
865 | static const char *link_spec = LINK_SPEC; | |
866 | static const char *lib_spec = LIB_SPEC; | |
953ff289 | 867 | static const char *link_gomp_spec = ""; |
3b304f5b ZW |
868 | static const char *libgcc_spec = LIBGCC_SPEC; |
869 | static const char *endfile_spec = ENDFILE_SPEC; | |
870 | static const char *startfile_spec = STARTFILE_SPEC; | |
3b304f5b | 871 | static const char *linker_name_spec = LINKER_NAME; |
d7f09764 DN |
872 | static const char *linker_plugin_file_spec = ""; |
873 | static const char *lto_wrapper_spec = ""; | |
874 | static const char *lto_gcc_spec = ""; | |
ea414c97 ZW |
875 | static const char *link_command_spec = LINK_COMMAND_SPEC; |
876 | static const char *link_libgcc_spec = LINK_LIBGCC_SPEC; | |
343f59d9 | 877 | static const char *startfile_prefix_spec = STARTFILE_PREFIX_SPEC; |
380e5ca4 | 878 | static const char *sysroot_spec = SYSROOT_SPEC; |
e7f13528 GP |
879 | static const char *sysroot_suffix_spec = SYSROOT_SUFFIX_SPEC; |
880 | static const char *sysroot_hdrs_suffix_spec = SYSROOT_HEADERS_SUFFIX_SPEC; | |
84f405a1 | 881 | static const char *self_spec = ""; |
ea414c97 ZW |
882 | |
883 | /* Standard options to cpp, cc1, and as, to reduce duplication in specs. | |
884 | There should be no need to override these in target dependent files, | |
885 | but we need to copy them to the specs file so that newer versions | |
886 | of the GCC driver can correctly drive older tool chains with the | |
887 | appropriate -B options. */ | |
888 | ||
e5f5feea NB |
889 | /* When cpplib handles traditional preprocessing, get rid of this, and |
890 | call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so | |
891 | that we default the front end language better. */ | |
ea414c97 | 892 | static const char *trad_capable_cpp = |
3028a95c | 893 | "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}"; |
ea414c97 | 894 | |
4ca1256f NB |
895 | /* We don't wrap .d files in %W{} since a missing .d file, and |
896 | therefore no dependency entry, confuses make into thinking a .o | |
897 | file that happens to exist is up-to-date. */ | |
ffdeea47 | 898 | static const char *cpp_unique_options = |
9cc54940 | 899 | "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\ |
c878765b JM |
900 | %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\ |
901 | %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\ | |
4ca1256f | 902 | %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\ |
3dfe046f | 903 | %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\ |
3a610de8 | 904 | %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\ |
c1ce46a5 | 905 | %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\ |
3a610de8 | 906 | %{H} %C %{D*&U*&A*} %{i*} %Z %i\ |
56cd5b95 | 907 | %{E|M|MM:%W{o*}}"; |
ffdeea47 JJ |
908 | |
909 | /* This contains cpp options which are common with cc1_options and are passed | |
059ba716 CD |
910 | only when preprocessing only to avoid duplication. We pass the cc1 spec |
911 | options to the preprocessor so that it the cc1 spec may manipulate | |
912 | options used to set target flags. Those special target flags settings may | |
913 | in turn cause preprocessor symbols to be defined specially. */ | |
ffdeea47 | 914 | static const char *cpp_options = |
740ca4b2 | 915 | "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\ |
09828811 | 916 | %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\ |
14fdc613 | 917 | %{undef} %{save-temps*:-fpch-preprocess}"; |
ea414c97 | 918 | |
8b968bd1 MW |
919 | /* This contains cpp options which are not passed when the preprocessor |
920 | output will be used by another program. */ | |
921 | static const char *cpp_debug_options = "%{d*}"; | |
922 | ||
708bceb7 | 923 | /* NB: This is shared amongst all front-ends, except for Ada. */ |
ea414c97 ZW |
924 | static const char *cc1_options = |
925 | "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\ | |
c1ce46a5 | 926 | %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\ |
1890bccc | 927 | %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\ |
2153915d AO |
928 | %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \ |
929 | %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \ | |
740ca4b2 | 930 | %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\ |
3df89291 | 931 | %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\ |
dd9f93dc | 932 | %{Qn:-fno-ident} %{Qy:} %{-help:--help}\ |
e200444e JM |
933 | %{-target-help:--target-help}\ |
934 | %{-version:--version}\ | |
935 | %{-help=*:--help=%*}\ | |
49009afd | 936 | %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\ |
6de9cd9a | 937 | %{fsyntax-only:-o %j} %{-param*}\ |
ee4c708e | 938 | %{coverage:-fprofile-arcs -ftest-coverage}"; |
ea414c97 ZW |
939 | |
940 | static const char *asm_options = | |
a016dc83 | 941 | "%{-target-help:%:print-asm-header()} " |
dc60b775 CD |
942 | #if HAVE_GNU_AS |
943 | /* If GNU AS is used, then convert -w (no warnings), -I, and -v | |
944 | to the assembler equivalents. */ | |
945 | "%{v} %{w:-W} %{I*} " | |
946 | #endif | |
29d7cbd1 | 947 | ASM_COMPRESS_DEBUG_SPEC |
dc60b775 | 948 | "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}"; |
ffd86336 | 949 | |
5a8e2650 | 950 | static const char *invoke_as = |
4977bab6 | 951 | #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT |
f300e7b8 | 952 | "%{!fwpa*:\ |
d7f09764 DN |
953 | %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\ |
954 | %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\ | |
955 | }"; | |
4977bab6 | 956 | #else |
f300e7b8 | 957 | "%{!fwpa*:\ |
d7f09764 DN |
958 | %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\ |
959 | %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\ | |
960 | }"; | |
4977bab6 | 961 | #endif |
5a8e2650 | 962 | |
ffd86336 | 963 | /* Some compilers have limits on line lengths, and the multilib_select |
961b7009 MM |
964 | and/or multilib_matches strings can be very long, so we build them at |
965 | run time. */ | |
ffd86336 | 966 | static struct obstack multilib_obstack; |
3b304f5b ZW |
967 | static const char *multilib_select; |
968 | static const char *multilib_matches; | |
969 | static const char *multilib_defaults; | |
970 | static const char *multilib_exclusions; | |
e7f49d92 | 971 | static const char *multilib_reuse; |
961b7009 MM |
972 | |
973 | /* Check whether a particular argument is a default argument. */ | |
974 | ||
975 | #ifndef MULTILIB_DEFAULTS | |
976 | #define MULTILIB_DEFAULTS { "" } | |
977 | #endif | |
978 | ||
d25a45d4 | 979 | static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS; |
ed1f651b | 980 | |
db36994b RS |
981 | #ifndef DRIVER_SELF_SPECS |
982 | #define DRIVER_SELF_SPECS "" | |
983 | #endif | |
984 | ||
de14871c | 985 | /* Linking to libgomp implies pthreads. This is particularly important |
953ff289 DN |
986 | for targets that use different start files and suchlike. */ |
987 | #ifndef GOMP_SELF_SPECS | |
daf49354 | 988 | #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}" |
953ff289 DN |
989 | #endif |
990 | ||
255a9a1b EB |
991 | /* Likewise for -fgnu-tm. */ |
992 | #ifndef GTM_SELF_SPECS | |
993 | #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}" | |
994 | #endif | |
995 | ||
b9487dd8 TB |
996 | /* Likewise for -fcilkplus. */ |
997 | #ifndef CILK_SELF_SPECS | |
998 | #define CILK_SELF_SPECS "%{fcilkplus: -pthread}" | |
999 | #endif | |
1000 | ||
953ff289 | 1001 | static const char *const driver_self_specs[] = { |
b5b8b0ac | 1002 | "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns", |
b9487dd8 TB |
1003 | DRIVER_SELF_SPECS, CONFIGURE_SPECS, GOMP_SELF_SPECS, GTM_SELF_SPECS, |
1004 | CILK_SELF_SPECS | |
953ff289 | 1005 | }; |
db36994b | 1006 | |
7816bea0 DJ |
1007 | #ifndef OPTION_DEFAULT_SPECS |
1008 | #define OPTION_DEFAULT_SPECS { "", "" } | |
1009 | #endif | |
1010 | ||
1011 | struct default_spec | |
1012 | { | |
1013 | const char *name; | |
1014 | const char *spec; | |
1015 | }; | |
1016 | ||
1017 | static const struct default_spec | |
1018 | option_default_specs[] = { OPTION_DEFAULT_SPECS }; | |
1019 | ||
3ac63d94 NC |
1020 | struct user_specs |
1021 | { | |
d9ac3a07 | 1022 | struct user_specs *next; |
878f32c3 | 1023 | const char *filename; |
d9ac3a07 MM |
1024 | }; |
1025 | ||
1026 | static struct user_specs *user_specs_head, *user_specs_tail; | |
1027 | ||
ed1f651b RS |
1028 | \f |
1029 | /* Record the mapping from file suffixes for compilation specs. */ | |
1030 | ||
1031 | struct compiler | |
1032 | { | |
878f32c3 | 1033 | const char *suffix; /* Use this compiler for input files |
ed1f651b | 1034 | whose names end in this suffix. */ |
ec32609a | 1035 | |
ea414c97 | 1036 | const char *spec; /* To use this compiler, run this spec. */ |
a9374841 MM |
1037 | |
1038 | const char *cpp_spec; /* If non-NULL, substitute this spec | |
1039 | for `%C', rather than the usual | |
1040 | cpp_spec. */ | |
1ea7e6ad | 1041 | const int combinable; /* If nonzero, compiler can deal with |
0855eab7 | 1042 | multiple source files at once (IMA). */ |
1ea7e6ad | 1043 | const int needs_preprocessing; /* If nonzero, source files need to |
0855eab7 | 1044 | be run through a preprocessor. */ |
ed1f651b RS |
1045 | }; |
1046 | ||
1047 | /* Pointer to a vector of `struct compiler' that gives the spec for | |
1048 | compiling a file, based on its suffix. | |
1049 | A file that does not end in any of these suffixes will be passed | |
1050 | unchanged to the loader and nothing else will be done to it. | |
1051 | ||
1052 | An entry containing two 0s is used to terminate the vector. | |
1053 | ||
1054 | If multiple entries match a file, the last matching one is used. */ | |
1055 | ||
1056 | static struct compiler *compilers; | |
1057 | ||
1058 | /* Number of entries in `compilers', not counting the null terminator. */ | |
1059 | ||
1060 | static int n_compilers; | |
1061 | ||
1062 | /* The default list of file name suffixes and their compilation specs. */ | |
1063 | ||
5e65297b | 1064 | static const struct compiler default_compilers[] = |
ed1f651b | 1065 | { |
4689ad58 | 1066 | /* Add lists of suffixes of known languages here. If those languages |
e9a25f70 JL |
1067 | were not present when we built the driver, we will hit these copies |
1068 | and be given a more meaningful error than "file not used since | |
4689ad58 | 1069 | linking is not done". */ |
0855eab7 | 1070 | {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0}, |
ad8c162b ZL |
1071 | {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0}, |
1072 | {".mii", "#Objective-C++", 0, 0, 0}, | |
7904f95f EC |
1073 | {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0}, |
1074 | {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0}, | |
0855eab7 CT |
1075 | {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0}, |
1076 | {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0}, | |
1077 | {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0}, | |
3135ce84 FXC |
1078 | {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0}, |
1079 | {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0}, | |
1080 | {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0}, | |
1081 | {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0}, | |
1082 | {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0}, | |
1083 | {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0}, | |
1084 | {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0}, | |
1085 | {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0}, | |
0855eab7 CT |
1086 | {".r", "#Ratfor", 0, 0, 0}, |
1087 | {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0}, | |
1088 | {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0}, | |
1089 | {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0}, | |
7a938933 | 1090 | {".go", "#Go", 0, 1, 0}, |
4689ad58 | 1091 | /* Next come the entries for C. */ |
c3224d6f | 1092 | {".c", "@c", 0, 0, 1}, |
ed1f651b | 1093 | {"@c", |
5a8e2650 | 1094 | /* cc1 has an integrated ISO C preprocessor. We should invoke the |
f458d1d5 | 1095 | external preprocessor if -save-temps is given. */ |
f749a36b | 1096 | "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\ |
5a8e2650 | 1097 | %{!E:%{!M:%{!MM:\ |
3028a95c | 1098 | %{traditional:\ |
f458d1d5 | 1099 | %eGNU C no longer supports -traditional without -E}\ |
c3224d6f RG |
1100 | %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \ |
1101 | %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\ | |
1102 | cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \ | |
1103 | %(cc1_options)}\ | |
1104 | %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\ | |
1105 | cc1 %(cpp_unique_options) %(cc1_options)}}}\ | |
1106 | %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1}, | |
ed1f651b | 1107 | {"-", |
6ba40dd7 | 1108 | "%{!E:%e-E or -x required when input is from standard input}\ |
0855eab7 CT |
1109 | %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0}, |
1110 | {".h", "@c-header", 0, 0, 0}, | |
ed1f651b | 1111 | {"@c-header", |
17211ab5 GK |
1112 | /* cc1 has an integrated ISO C preprocessor. We should invoke the |
1113 | external preprocessor if -save-temps is given. */ | |
1114 | "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\ | |
1115 | %{!E:%{!M:%{!MM:\ | |
14fdc613 MM |
1116 | %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \ |
1117 | %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\ | |
1118 | cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \ | |
0de12fcc | 1119 | %(cc1_options)\ |
9cc54940 AC |
1120 | %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\ |
1121 | %W{o*:--output-pch=%*}}%V}\ | |
14fdc613 | 1122 | %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\ |
17211ab5 | 1123 | cc1 %(cpp_unique_options) %(cc1_options)\ |
9cc54940 AC |
1124 | %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\ |
1125 | %W{o*:--output-pch=%*}}%V}}}}}}", 0, 0, 0}, | |
c3224d6f | 1126 | {".i", "@cpp-output", 0, 0, 0}, |
ed1f651b | 1127 | {"@cpp-output", |
ca3da783 | 1128 | "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0}, |
a0d43bac | 1129 | {".s", "@assembler", 0, 0, 0}, |
ed1f651b | 1130 | {"@assembler", |
a0d43bac JZ |
1131 | "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0}, |
1132 | {".sx", "@assembler-with-cpp", 0, 0, 0}, | |
1133 | {".S", "@assembler-with-cpp", 0, 0, 0}, | |
ed1f651b | 1134 | {"@assembler-with-cpp", |
4977bab6 | 1135 | #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT |
2710d6d7 | 1136 | "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\ |
8b968bd1 | 1137 | %{E|M|MM:%(cpp_debug_options)}\ |
4977bab6 ZW |
1138 | %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\ |
1139 | as %(asm_debug) %(asm_options) %|.s %A }}}}" | |
1140 | #else | |
2710d6d7 | 1141 | "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\ |
4977bab6 ZW |
1142 | %{E|M|MM:%(cpp_debug_options)}\ |
1143 | %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\ | |
1144 | as %(asm_debug) %(asm_options) %m.s %A }}}}" | |
1145 | #endif | |
a0d43bac | 1146 | , 0, 0, 0}, |
1d088dee | 1147 | |
1346ae41 | 1148 | #include "specs.h" |
f9da5064 | 1149 | /* Mark end of table. */ |
0855eab7 | 1150 | {0, 0, 0, 0, 0} |
ed1f651b RS |
1151 | }; |
1152 | ||
1153 | /* Number of elements in default_compilers, not counting the terminator. */ | |
1154 | ||
ca7558fc | 1155 | static const int n_default_compilers = ARRAY_SIZE (default_compilers) - 1; |
ed1f651b | 1156 | |
69d540bd | 1157 | typedef char *char_p; /* For DEF_VEC_P. */ |
69d540bd | 1158 | |
ed1f651b | 1159 | /* A vector of options to give to the linker. |
368dfd3a | 1160 | These options are accumulated by %x, |
ed1f651b | 1161 | and substituted into the linker command with %X. */ |
9771b263 | 1162 | static vec<char_p> linker_options; |
c9ebacb8 RS |
1163 | |
1164 | /* A vector of options to give to the assembler. | |
1165 | These options are accumulated by -Wa, | |
57cb9b60 | 1166 | and substituted into the assembler command with %Y. */ |
9771b263 | 1167 | static vec<char_p> assembler_options; |
57cb9b60 JW |
1168 | |
1169 | /* A vector of options to give to the preprocessor. | |
1170 | These options are accumulated by -Wp, | |
1171 | and substituted into the preprocessor command with %Z. */ | |
9771b263 | 1172 | static vec<char_p> preprocessor_options; |
ed1f651b | 1173 | \f |
ed1f651b | 1174 | static char * |
1d088dee | 1175 | skip_whitespace (char *p) |
ed1f651b RS |
1176 | { |
1177 | while (1) | |
1178 | { | |
1179 | /* A fully-blank line is a delimiter in the SPEC file and shouldn't | |
1180 | be considered whitespace. */ | |
1181 | if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n') | |
1182 | return p + 1; | |
1183 | else if (*p == '\n' || *p == ' ' || *p == '\t') | |
1184 | p++; | |
1185 | else if (*p == '#') | |
1186 | { | |
d25a45d4 KH |
1187 | while (*p != '\n') |
1188 | p++; | |
ed1f651b RS |
1189 | p++; |
1190 | } | |
1191 | else | |
1192 | break; | |
1193 | } | |
1194 | ||
1195 | return p; | |
1196 | } | |
2296d164 RK |
1197 | /* Structures to keep track of prefixes to try when looking for files. */ |
1198 | ||
1199 | struct prefix_list | |
1200 | { | |
8060c8ee | 1201 | const char *prefix; /* String to prepend to the path. */ |
2296d164 RK |
1202 | struct prefix_list *next; /* Next in linked list. */ |
1203 | int require_machine_suffix; /* Don't use without machine_suffix. */ | |
1204 | /* 2 means try both machine_suffix and just_machine_suffix. */ | |
5bbcd587 JJ |
1205 | int priority; /* Sort key - priority within list. */ |
1206 | int os_multilib; /* 1 if OS multilib scheme should be used, | |
1207 | 0 for GCC multilib scheme. */ | |
2296d164 RK |
1208 | }; |
1209 | ||
1210 | struct path_prefix | |
1211 | { | |
1212 | struct prefix_list *plist; /* List of prefixes to try */ | |
1213 | int max_len; /* Max length of a prefix in PLIST */ | |
1214 | const char *name; /* Name of this list (used in config stuff) */ | |
1215 | }; | |
1216 | ||
1217 | /* List of prefixes to try when looking for executables. */ | |
1218 | ||
1219 | static struct path_prefix exec_prefixes = { 0, 0, "exec" }; | |
1220 | ||
1221 | /* List of prefixes to try when looking for startup (crt0) files. */ | |
1222 | ||
1223 | static struct path_prefix startfile_prefixes = { 0, 0, "startfile" }; | |
1224 | ||
1225 | /* List of prefixes to try when looking for include files. */ | |
1226 | ||
1227 | static struct path_prefix include_prefixes = { 0, 0, "include" }; | |
1228 | ||
1229 | /* Suffix to attach to directories searched for commands. | |
1230 | This looks like `MACHINE/VERSION/'. */ | |
1231 | ||
1232 | static const char *machine_suffix = 0; | |
1233 | ||
1234 | /* Suffix to attach to directories searched for commands. | |
1235 | This is just `MACHINE/'. */ | |
1236 | ||
1237 | static const char *just_machine_suffix = 0; | |
1238 | ||
1239 | /* Adjusted value of GCC_EXEC_PREFIX envvar. */ | |
1240 | ||
1241 | static const char *gcc_exec_prefix; | |
1242 | ||
a8ee6e2d GK |
1243 | /* Adjusted value of standard_libexec_prefix. */ |
1244 | ||
1245 | static const char *gcc_libexec_prefix; | |
1246 | ||
2296d164 RK |
1247 | /* Default prefixes to attach to command names. */ |
1248 | ||
656c7a3a AL |
1249 | #ifndef STANDARD_STARTFILE_PREFIX_1 |
1250 | #define STANDARD_STARTFILE_PREFIX_1 "/lib/" | |
1251 | #endif | |
1252 | #ifndef STANDARD_STARTFILE_PREFIX_2 | |
1253 | #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/" | |
1254 | #endif | |
7904f95f | 1255 | |
2989d30c | 1256 | #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */ |
2296d164 RK |
1257 | #undef MD_EXEC_PREFIX |
1258 | #undef MD_STARTFILE_PREFIX | |
1259 | #undef MD_STARTFILE_PREFIX_1 | |
1260 | #endif | |
1261 | ||
1262 | /* If no prefixes defined, use the null string, which will disable them. */ | |
1263 | #ifndef MD_EXEC_PREFIX | |
1264 | #define MD_EXEC_PREFIX "" | |
1265 | #endif | |
1266 | #ifndef MD_STARTFILE_PREFIX | |
1267 | #define MD_STARTFILE_PREFIX "" | |
1268 | #endif | |
1269 | #ifndef MD_STARTFILE_PREFIX_1 | |
1270 | #define MD_STARTFILE_PREFIX_1 "" | |
1271 | #endif | |
1272 | ||
f4c0a303 CD |
1273 | /* These directories are locations set at configure-time based on the |
1274 | --prefix option provided to configure. Their initializers are | |
1275 | defined in Makefile.in. These paths are not *directly* used when | |
1276 | gcc_exec_prefix is set because, in that case, we know where the | |
1277 | compiler has been installed, and use paths relative to that | |
1278 | location instead. */ | |
27c38fbe | 1279 | static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX; |
f4c0a303 CD |
1280 | static const char *const standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX; |
1281 | static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX; | |
1282 | static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX; | |
1283 | ||
1284 | /* For native compilers, these are well-known paths containing | |
1285 | components that may be provided by the system. For cross | |
1286 | compilers, these paths are not used. */ | |
2296d164 | 1287 | static const char *md_exec_prefix = MD_EXEC_PREFIX; |
2296d164 RK |
1288 | static const char *md_startfile_prefix = MD_STARTFILE_PREFIX; |
1289 | static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1; | |
c662432e | 1290 | static const char *const standard_startfile_prefix_1 |
656c7a3a AL |
1291 | = STANDARD_STARTFILE_PREFIX_1; |
1292 | static const char *const standard_startfile_prefix_2 | |
1293 | = STANDARD_STARTFILE_PREFIX_2; | |
2296d164 | 1294 | |
f4c0a303 CD |
1295 | /* A relative path to be used in finding the location of tools |
1296 | relative to the driver. */ | |
27c38fbe | 1297 | static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX; |
a8ee6e2d | 1298 | |
2296d164 RK |
1299 | /* Subdirectory to use for locating libraries. Set by |
1300 | set_multilib_dir based on the compilation options. */ | |
1301 | ||
1302 | static const char *multilib_dir; | |
5bbcd587 JJ |
1303 | |
1304 | /* Subdirectory to use for locating libraries in OS conventions. Set by | |
1305 | set_multilib_dir based on the compilation options. */ | |
1306 | ||
1307 | static const char *multilib_os_dir; | |
e0cdc09f MK |
1308 | |
1309 | /* Subdirectory to use for locating libraries in multiarch conventions. Set by | |
1310 | set_multilib_dir based on the compilation options. */ | |
1311 | ||
1312 | static const char *multiarch_dir; | |
ed1f651b | 1313 | \f |
0f41302f | 1314 | /* Structure to keep track of the specs that have been defined so far. |
3ce9f090 JM |
1315 | These are accessed using %(specname) in a compiler or link |
1316 | spec. */ | |
ed1f651b RS |
1317 | |
1318 | struct spec_list | |
1319 | { | |
79aff5ac MM |
1320 | /* The following 2 fields must be first */ |
1321 | /* to allow EXTRA_SPECS to be initialized */ | |
3b304f5b ZW |
1322 | const char *name; /* name of the spec. */ |
1323 | const char *ptr; /* available ptr if no static pointer */ | |
79aff5ac MM |
1324 | |
1325 | /* The following fields are not initialized */ | |
1326 | /* by EXTRA_SPECS */ | |
3b304f5b | 1327 | const char **ptr_spec; /* pointer to the spec itself. */ |
79aff5ac MM |
1328 | struct spec_list *next; /* Next spec in linked list. */ |
1329 | int name_len; /* length of the name */ | |
d168aaee CB |
1330 | bool user_p; /* whether string come from file spec. */ |
1331 | bool alloc_p; /* whether string was allocated */ | |
ed1f651b RS |
1332 | }; |
1333 | ||
79aff5ac | 1334 | #define INIT_STATIC_SPEC(NAME,PTR) \ |
d168aaee | 1335 | { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, false, false } |
79aff5ac | 1336 | |
3ac63d94 NC |
1337 | /* List of statically defined specs. */ |
1338 | static struct spec_list static_specs[] = | |
1339 | { | |
79aff5ac | 1340 | INIT_STATIC_SPEC ("asm", &asm_spec), |
5f0e9ea2 | 1341 | INIT_STATIC_SPEC ("asm_debug", &asm_debug), |
79aff5ac | 1342 | INIT_STATIC_SPEC ("asm_final", &asm_final_spec), |
ea414c97 | 1343 | INIT_STATIC_SPEC ("asm_options", &asm_options), |
5a8e2650 | 1344 | INIT_STATIC_SPEC ("invoke_as", &invoke_as), |
79aff5ac | 1345 | INIT_STATIC_SPEC ("cpp", &cpp_spec), |
ea414c97 | 1346 | INIT_STATIC_SPEC ("cpp_options", &cpp_options), |
8b968bd1 | 1347 | INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options), |
ffdeea47 | 1348 | INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options), |
ea414c97 | 1349 | INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp), |
79aff5ac | 1350 | INIT_STATIC_SPEC ("cc1", &cc1_spec), |
ea414c97 | 1351 | INIT_STATIC_SPEC ("cc1_options", &cc1_options), |
79aff5ac | 1352 | INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec), |
bbd7687d | 1353 | INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec), |
77008252 | 1354 | INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec), |
79aff5ac MM |
1355 | INIT_STATIC_SPEC ("endfile", &endfile_spec), |
1356 | INIT_STATIC_SPEC ("link", &link_spec), | |
1357 | INIT_STATIC_SPEC ("lib", &lib_spec), | |
953ff289 | 1358 | INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec), |
79aff5ac MM |
1359 | INIT_STATIC_SPEC ("libgcc", &libgcc_spec), |
1360 | INIT_STATIC_SPEC ("startfile", &startfile_spec), | |
79aff5ac MM |
1361 | INIT_STATIC_SPEC ("cross_compile", &cross_compile), |
1362 | INIT_STATIC_SPEC ("version", &compiler_version), | |
1363 | INIT_STATIC_SPEC ("multilib", &multilib_select), | |
1364 | INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults), | |
1365 | INIT_STATIC_SPEC ("multilib_extra", &multilib_extra), | |
1366 | INIT_STATIC_SPEC ("multilib_matches", &multilib_matches), | |
0a8d6618 | 1367 | INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions), |
5bbcd587 | 1368 | INIT_STATIC_SPEC ("multilib_options", &multilib_options), |
e7f49d92 | 1369 | INIT_STATIC_SPEC ("multilib_reuse", &multilib_reuse), |
10da1131 | 1370 | INIT_STATIC_SPEC ("linker", &linker_name_spec), |
d7f09764 DN |
1371 | INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec), |
1372 | INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec), | |
1373 | INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec), | |
ea414c97 | 1374 | INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec), |
2296d164 RK |
1375 | INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix), |
1376 | INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix), | |
1377 | INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1), | |
343f59d9 | 1378 | INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec), |
380e5ca4 | 1379 | INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec), |
e7f13528 GP |
1380 | INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec), |
1381 | INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec), | |
84f405a1 | 1382 | INIT_STATIC_SPEC ("self_spec", &self_spec), |
79aff5ac MM |
1383 | }; |
1384 | ||
1385 | #ifdef EXTRA_SPECS /* additional specs needed */ | |
829245be | 1386 | /* Structure to keep track of just the first two args of a spec_list. |
3ac63d94 | 1387 | That is all that the EXTRA_SPECS macro gives us. */ |
829245be KG |
1388 | struct spec_list_1 |
1389 | { | |
8b60264b KG |
1390 | const char *const name; |
1391 | const char *const ptr; | |
829245be KG |
1392 | }; |
1393 | ||
8b60264b | 1394 | static const struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS }; |
d25a45d4 | 1395 | static struct spec_list *extra_specs = (struct spec_list *) 0; |
79aff5ac MM |
1396 | #endif |
1397 | ||
1398 | /* List of dynamically allocates specs that have been defined so far. */ | |
1399 | ||
9218435e | 1400 | static struct spec_list *specs = (struct spec_list *) 0; |
79aff5ac | 1401 | \f |
f3226a90 JT |
1402 | /* List of static spec functions. */ |
1403 | ||
1404 | static const struct spec_function static_spec_functions[] = | |
1405 | { | |
30d8946b | 1406 | { "getenv", getenv_spec_function }, |
f3226a90 | 1407 | { "if-exists", if_exists_spec_function }, |
152a5a9c | 1408 | { "if-exists-else", if_exists_else_spec_function }, |
de5a5fa1 | 1409 | { "sanitize", sanitize_spec_function }, |
3dd53121 | 1410 | { "replace-outfile", replace_outfile_spec_function }, |
2642f659 | 1411 | { "remove-outfile", remove_outfile_spec_function }, |
ed5b9f96 | 1412 | { "version-compare", version_compare_spec_function }, |
953ff289 | 1413 | { "include", include_spec_function }, |
4adbd5dd | 1414 | { "find-file", find_file_spec_function }, |
c1ce46a5 | 1415 | { "find-plugindir", find_plugindir_spec_function }, |
a0f87454 | 1416 | { "print-asm-header", print_asm_header_spec_function }, |
2153915d AO |
1417 | { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function }, |
1418 | { "compare-debug-self-opt", compare_debug_self_opt_spec_function }, | |
1419 | { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function }, | |
9a37bc07 | 1420 | { "pass-through-libs", pass_through_libs_spec_func }, |
99ea153e | 1421 | { "replace-extension", replace_extension_spec_func }, |
fa959ce4 MM |
1422 | #ifdef EXTRA_SPEC_FUNCTIONS |
1423 | EXTRA_SPEC_FUNCTIONS | |
1424 | #endif | |
f3226a90 JT |
1425 | { 0, 0 } |
1426 | }; | |
1427 | ||
1428 | static int processing_spec_function; | |
1429 | \f | |
049f6ec9 MM |
1430 | /* Add appropriate libgcc specs to OBSTACK, taking into account |
1431 | various permutations of -shared-libgcc, -shared, and such. */ | |
1432 | ||
328163dc | 1433 | #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC) |
8efcd34f AM |
1434 | |
1435 | #ifndef USE_LD_AS_NEEDED | |
1436 | #define USE_LD_AS_NEEDED 0 | |
1437 | #endif | |
1438 | ||
049f6ec9 | 1439 | static void |
1d088dee AJ |
1440 | init_gcc_specs (struct obstack *obstack, const char *shared_name, |
1441 | const char *static_name, const char *eh_name) | |
049f6ec9 | 1442 | { |
5c181756 AO |
1443 | char *buf; |
1444 | ||
5e4f1974 AM |
1445 | buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name, "}" |
1446 | "%{!static:%{!static-libgcc:" | |
8efcd34f | 1447 | #if USE_LD_AS_NEEDED |
5e4f1974 | 1448 | "%{!shared-libgcc:", |
e927b6ad RO |
1449 | static_name, " " LD_AS_NEEDED_OPTION " ", |
1450 | shared_name, " " LD_NO_AS_NEEDED_OPTION | |
5e4f1974 AM |
1451 | "}" |
1452 | "%{shared-libgcc:", | |
1453 | shared_name, "%{!shared: ", static_name, "}" | |
1454 | "}" | |
765f1bf9 | 1455 | #else |
5e4f1974 AM |
1456 | "%{!shared:" |
1457 | "%{!shared-libgcc:", static_name, " ", eh_name, "}" | |
1458 | "%{shared-libgcc:", shared_name, " ", static_name, "}" | |
1459 | "}" | |
275b60d6 | 1460 | #ifdef LINK_EH_SPEC |
5e4f1974 AM |
1461 | "%{shared:" |
1462 | "%{shared-libgcc:", shared_name, "}" | |
1463 | "%{!shared-libgcc:", static_name, "}" | |
1464 | "}" | |
275b60d6 | 1465 | #else |
5e4f1974 | 1466 | "%{shared:", shared_name, "}" |
765f1bf9 | 1467 | #endif |
275b60d6 | 1468 | #endif |
5e4f1974 | 1469 | "}}", NULL); |
5c181756 AO |
1470 | |
1471 | obstack_grow (obstack, buf, strlen (buf)); | |
1472 | free (buf); | |
049f6ec9 | 1473 | } |
6894579f | 1474 | #endif /* ENABLE_SHARED_LIBGCC */ |
049f6ec9 | 1475 | |
79aff5ac MM |
1476 | /* Initialize the specs lookup routines. */ |
1477 | ||
1478 | static void | |
7e51717c | 1479 | init_spec (void) |
79aff5ac | 1480 | { |
9218435e KH |
1481 | struct spec_list *next = (struct spec_list *) 0; |
1482 | struct spec_list *sl = (struct spec_list *) 0; | |
79aff5ac MM |
1483 | int i; |
1484 | ||
1485 | if (specs) | |
3ac63d94 | 1486 | return; /* Already initialized. */ |
79aff5ac | 1487 | |
20df0482 | 1488 | if (verbose_flag) |
2dec80c7 | 1489 | fnotice (stderr, "Using built-in specs.\n"); |
20df0482 | 1490 | |
79aff5ac | 1491 | #ifdef EXTRA_SPECS |
e1e4cdc4 | 1492 | extra_specs = XCNEWVEC (struct spec_list, ARRAY_SIZE (extra_specs_1)); |
9218435e | 1493 | |
b6a1cbae | 1494 | for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--) |
03fc1620 JW |
1495 | { |
1496 | sl = &extra_specs[i]; | |
829245be KG |
1497 | sl->name = extra_specs_1[i].name; |
1498 | sl->ptr = extra_specs_1[i].ptr; | |
03fc1620 JW |
1499 | sl->next = next; |
1500 | sl->name_len = strlen (sl->name); | |
1501 | sl->ptr_spec = &sl->ptr; | |
1502 | next = sl; | |
1503 | } | |
79aff5ac MM |
1504 | #endif |
1505 | ||
b6a1cbae | 1506 | for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--) |
79aff5ac MM |
1507 | { |
1508 | sl = &static_specs[i]; | |
1509 | sl->next = next; | |
1510 | next = sl; | |
1511 | } | |
1512 | ||
328163dc | 1513 | #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC) |
9db0819e RH |
1514 | /* ??? If neither -shared-libgcc nor --static-libgcc was |
1515 | seen, then we should be making an educated guess. Some proposed | |
1516 | heuristics for ELF include: | |
1517 | ||
1518 | (1) If "-Wl,--export-dynamic", then it's a fair bet that the | |
1519 | program will be doing dynamic loading, which will likely | |
1520 | need the shared libgcc. | |
1521 | ||
1522 | (2) If "-ldl", then it's also a fair bet that we're doing | |
1523 | dynamic loading. | |
1524 | ||
1525 | (3) For each ET_DYN we're linking against (either through -lfoo | |
1526 | or /some/path/foo.so), check to see whether it or one of | |
ff7cc307 | 1527 | its dependencies depends on a shared libgcc. |
9db0819e RH |
1528 | |
1529 | (4) If "-shared" | |
1530 | ||
1531 | If the runtime is fixed to look for program headers instead | |
1532 | of calling __register_frame_info at all, for each object, | |
1533 | use the shared libgcc if any EH symbol referenced. | |
1534 | ||
1535 | If crtstuff is fixed to not invoke __register_frame_info | |
1536 | automatically, for each object, use the shared libgcc if | |
1537 | any non-empty unwind section found. | |
1538 | ||
1539 | Doing any of this probably requires invoking an external program to | |
1540 | do the actual object file scanning. */ | |
1541 | { | |
1542 | const char *p = libgcc_spec; | |
1543 | int in_sep = 1; | |
589005ff | 1544 | |
16757495 | 1545 | /* Transform the extant libgcc_spec into one that uses the shared libgcc |
9db0819e RH |
1546 | when given the proper command line arguments. */ |
1547 | while (*p) | |
1548 | { | |
589005ff | 1549 | if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0) |
9db0819e | 1550 | { |
049f6ec9 | 1551 | init_gcc_specs (&obstack, |
049f6ec9 | 1552 | "-lgcc_s" |
443728bb L |
1553 | #ifdef USE_LIBUNWIND_EXCEPTIONS |
1554 | " -lunwind" | |
4977bab6 | 1555 | #endif |
348d71c7 JW |
1556 | , |
1557 | "-lgcc", | |
1558 | "-lgcc_eh" | |
4977bab6 | 1559 | #ifdef USE_LIBUNWIND_EXCEPTIONS |
7e9d8517 | 1560 | # ifdef HAVE_LD_STATIC_DYNAMIC |
c6092243 RO |
1561 | " %{!static:" LD_STATIC_OPTION "} -lunwind" |
1562 | " %{!static:" LD_DYNAMIC_OPTION "}" | |
7e9d8517 | 1563 | # else |
4977bab6 | 1564 | " -lunwind" |
7e9d8517 | 1565 | # endif |
9db0819e | 1566 | #endif |
348d71c7 JW |
1567 | ); |
1568 | ||
ba2b7435 | 1569 | p += 5; |
9db0819e RH |
1570 | in_sep = 0; |
1571 | } | |
ba2b7435 | 1572 | else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0) |
9db0819e RH |
1573 | { |
1574 | /* Ug. We don't know shared library extensions. Hope that | |
1575 | systems that use this form don't do shared libraries. */ | |
049f6ec9 | 1576 | init_gcc_specs (&obstack, |
4e8d0554 | 1577 | "-lgcc_s", |
275b60d6 | 1578 | "libgcc.a%s", |
aedec8dd JW |
1579 | "libgcc_eh.a%s" |
1580 | #ifdef USE_LIBUNWIND_EXCEPTIONS | |
1581 | " -lunwind" | |
1582 | #endif | |
1583 | ); | |
ba2b7435 | 1584 | p += 10; |
9db0819e RH |
1585 | in_sep = 0; |
1586 | } | |
1587 | else | |
1588 | { | |
1589 | obstack_1grow (&obstack, *p); | |
1590 | in_sep = (*p == ' '); | |
1591 | p += 1; | |
1592 | } | |
1593 | } | |
1594 | ||
1595 | obstack_1grow (&obstack, '\0'); | |
7973fd2a | 1596 | libgcc_spec = XOBFINISH (&obstack, const char *); |
9db0819e RH |
1597 | } |
1598 | #endif | |
c64688ae RH |
1599 | #ifdef USE_AS_TRADITIONAL_FORMAT |
1600 | /* Prepend "--traditional-format" to whatever asm_spec we had before. */ | |
1601 | { | |
8b60264b | 1602 | static const char tf[] = "--traditional-format "; |
c3284718 | 1603 | obstack_grow (&obstack, tf, sizeof (tf) - 1); |
c64688ae | 1604 | obstack_grow0 (&obstack, asm_spec, strlen (asm_spec)); |
7973fd2a | 1605 | asm_spec = XOBFINISH (&obstack, const char *); |
c64688ae RH |
1606 | } |
1607 | #endif | |
cd533689 | 1608 | |
79bec923 ST |
1609 | #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \ |
1610 | defined LINKER_HASH_STYLE | |
cd533689 PP |
1611 | # ifdef LINK_BUILDID_SPEC |
1612 | /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */ | |
c3284718 | 1613 | obstack_grow (&obstack, LINK_BUILDID_SPEC, sizeof (LINK_BUILDID_SPEC) - 1); |
cd533689 PP |
1614 | # endif |
1615 | # ifdef LINK_EH_SPEC | |
275b60d6 | 1616 | /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */ |
c3284718 | 1617 | obstack_grow (&obstack, LINK_EH_SPEC, sizeof (LINK_EH_SPEC) - 1); |
79bec923 ST |
1618 | # endif |
1619 | # ifdef LINKER_HASH_STYLE | |
1620 | /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had | |
1621 | before. */ | |
1622 | { | |
1623 | static const char hash_style[] = "--hash-style="; | |
c3284718 RS |
1624 | obstack_grow (&obstack, hash_style, sizeof (hash_style) - 1); |
1625 | obstack_grow (&obstack, LINKER_HASH_STYLE, sizeof (LINKER_HASH_STYLE) - 1); | |
79bec923 ST |
1626 | obstack_1grow (&obstack, ' '); |
1627 | } | |
cd533689 | 1628 | # endif |
275b60d6 | 1629 | obstack_grow0 (&obstack, link_spec, strlen (link_spec)); |
7973fd2a | 1630 | link_spec = XOBFINISH (&obstack, const char *); |
275b60d6 | 1631 | #endif |
9db0819e | 1632 | |
79aff5ac MM |
1633 | specs = sl; |
1634 | } | |
ed1f651b RS |
1635 | \f |
1636 | /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is | |
1637 | removed; If the spec starts with a + then SPEC is added to the end of the | |
0f41302f | 1638 | current spec. */ |
ed1f651b RS |
1639 | |
1640 | static void | |
d168aaee | 1641 | set_spec (const char *name, const char *spec, bool user_p) |
ed1f651b RS |
1642 | { |
1643 | struct spec_list *sl; | |
3b304f5b | 1644 | const char *old_spec; |
79aff5ac MM |
1645 | int name_len = strlen (name); |
1646 | int i; | |
1647 | ||
3ac63d94 | 1648 | /* If this is the first call, initialize the statically allocated specs. */ |
20df0482 MM |
1649 | if (!specs) |
1650 | { | |
9218435e | 1651 | struct spec_list *next = (struct spec_list *) 0; |
b6a1cbae | 1652 | for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--) |
20df0482 MM |
1653 | { |
1654 | sl = &static_specs[i]; | |
1655 | sl->next = next; | |
1656 | next = sl; | |
1657 | } | |
1658 | specs = sl; | |
1659 | } | |
1660 | ||
3ac63d94 | 1661 | /* See if the spec already exists. */ |
ed1f651b | 1662 | for (sl = specs; sl; sl = sl->next) |
79aff5ac | 1663 | if (name_len == sl->name_len && !strcmp (sl->name, name)) |
ed1f651b RS |
1664 | break; |
1665 | ||
1666 | if (!sl) | |
1667 | { | |
3ac63d94 | 1668 | /* Not found - make it. */ |
5ed6ace5 | 1669 | sl = XNEW (struct spec_list); |
ad85216e | 1670 | sl->name = xstrdup (name); |
79aff5ac MM |
1671 | sl->name_len = name_len; |
1672 | sl->ptr_spec = &sl->ptr; | |
1673 | sl->alloc_p = 0; | |
1674 | *(sl->ptr_spec) = ""; | |
ed1f651b RS |
1675 | sl->next = specs; |
1676 | specs = sl; | |
1677 | } | |
1678 | ||
79aff5ac | 1679 | old_spec = *(sl->ptr_spec); |
e51712db | 1680 | *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1])) |
d4f2852f | 1681 | ? concat (old_spec, spec + 1, NULL) |
ad85216e | 1682 | : xstrdup (spec)); |
841faeed | 1683 | |
20df0482 MM |
1684 | #ifdef DEBUG_SPECS |
1685 | if (verbose_flag) | |
2dec80c7 | 1686 | fnotice (stderr, "Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec)); |
20df0482 MM |
1687 | #endif |
1688 | ||
3ac63d94 | 1689 | /* Free the old spec. */ |
79aff5ac | 1690 | if (old_spec && sl->alloc_p) |
c3284718 | 1691 | free (CONST_CAST (char *, old_spec)); |
79aff5ac | 1692 | |
d168aaee CB |
1693 | sl->user_p = user_p; |
1694 | sl->alloc_p = true; | |
ed1f651b RS |
1695 | } |
1696 | \f | |
1697 | /* Accumulate a command (program name and args), and run it. */ | |
1698 | ||
5b634ee0 | 1699 | typedef const char *const_char_p; /* For DEF_VEC_P. */ |
ed1f651b | 1700 | |
5b634ee0 | 1701 | /* Vector of pointers to arguments in the current line of specifications. */ |
ed1f651b | 1702 | |
9771b263 | 1703 | static vec<const_char_p> argbuf; |
ed1f651b | 1704 | |
5b634ee0 | 1705 | /* Position in the argbuf vector containing the name of the output file |
0855eab7 CT |
1706 | (the value associated with the "-o" flag). */ |
1707 | ||
1708 | static int have_o_argbuf_index = 0; | |
1709 | ||
1b5bc8e9 | 1710 | /* Were the options -c, -S or -E passed. */ |
af41c57d AP |
1711 | static int have_c = 0; |
1712 | ||
1713 | /* Was the option -o passed. */ | |
1714 | static int have_o = 0; | |
1715 | ||
49009afd JL |
1716 | /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated |
1717 | temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for | |
1718 | it here. */ | |
fb266030 TW |
1719 | |
1720 | static struct temp_name { | |
878f32c3 | 1721 | const char *suffix; /* suffix associated with the code. */ |
fb266030 TW |
1722 | int length; /* strlen (suffix). */ |
1723 | int unique; /* Indicates whether %g or %u/%U was used. */ | |
878f32c3 | 1724 | const char *filename; /* associated filename. */ |
fb266030 TW |
1725 | int filename_length; /* strlen (filename). */ |
1726 | struct temp_name *next; | |
1727 | } *temp_names; | |
39d45901 | 1728 | |
ed1f651b RS |
1729 | /* Number of commands executed so far. */ |
1730 | ||
1731 | static int execution_count; | |
1732 | ||
3b9b4d3f RS |
1733 | /* Number of commands that exited with a signal. */ |
1734 | ||
1735 | static int signal_count; | |
ed1f651b | 1736 | \f |
f3226a90 JT |
1737 | /* Allocate the argument vector. */ |
1738 | ||
1739 | static void | |
7e51717c | 1740 | alloc_args (void) |
f3226a90 | 1741 | { |
9771b263 | 1742 | argbuf.create (10); |
f3226a90 JT |
1743 | } |
1744 | ||
ed1f651b RS |
1745 | /* Clear out the vector of arguments (after a command is executed). */ |
1746 | ||
1747 | static void | |
1d088dee | 1748 | clear_args (void) |
ed1f651b | 1749 | { |
9771b263 | 1750 | argbuf.truncate (0); |
ed1f651b RS |
1751 | } |
1752 | ||
1753 | /* Add one argument to the vector at the end. | |
1754 | This is done when a space is seen or at the end of the line. | |
1755 | If DELETE_ALWAYS is nonzero, the arg is a filename | |
1756 | and the file should be deleted eventually. | |
1757 | If DELETE_FAILURE is nonzero, the arg is a filename | |
1758 | and the file should be deleted if this compilation fails. */ | |
1759 | ||
1760 | static void | |
1d088dee | 1761 | store_arg (const char *arg, int delete_always, int delete_failure) |
ed1f651b | 1762 | { |
9771b263 | 1763 | argbuf.safe_push (arg); |
ed1f651b | 1764 | |
0855eab7 | 1765 | if (strcmp (arg, "-o") == 0) |
9771b263 | 1766 | have_o_argbuf_index = argbuf.length (); |
ed1f651b | 1767 | if (delete_always || delete_failure) |
d6205185 RG |
1768 | { |
1769 | const char *p; | |
1770 | /* If the temporary file we should delete is specified as | |
1771 | part of a joined argument extract the filename. */ | |
1772 | if (arg[0] == '-' | |
1773 | && (p = strrchr (arg, '='))) | |
1774 | arg = p + 1; | |
1775 | record_temp_file (arg, delete_always, delete_failure); | |
1776 | } | |
ed1f651b RS |
1777 | } |
1778 | \f | |
ff7cc307 | 1779 | /* Load specs from a file name named FILENAME, replacing occurrences of |
9218435e | 1780 | various different types of line-endings, \r\n, \n\r and just \r, with |
b633b6c0 | 1781 | a single \n. */ |
20df0482 | 1782 | |
d25a45d4 | 1783 | static char * |
1d088dee | 1784 | load_specs (const char *filename) |
20df0482 MM |
1785 | { |
1786 | int desc; | |
1787 | int readlen; | |
1788 | struct stat statbuf; | |
1789 | char *buffer; | |
b633b6c0 MK |
1790 | char *buffer_p; |
1791 | char *specs; | |
1792 | char *specs_p; | |
20df0482 MM |
1793 | |
1794 | if (verbose_flag) | |
2dec80c7 | 1795 | fnotice (stderr, "Reading specs from %s\n", filename); |
20df0482 MM |
1796 | |
1797 | /* Open and stat the file. */ | |
1798 | desc = open (filename, O_RDONLY, 0); | |
1799 | if (desc < 0) | |
1800 | pfatal_with_name (filename); | |
1801 | if (stat (filename, &statbuf) < 0) | |
1802 | pfatal_with_name (filename); | |
1803 | ||
1804 | /* Read contents of file into BUFFER. */ | |
5ed6ace5 | 1805 | buffer = XNEWVEC (char, statbuf.st_size + 1); |
20df0482 MM |
1806 | readlen = read (desc, buffer, (unsigned) statbuf.st_size); |
1807 | if (readlen < 0) | |
1808 | pfatal_with_name (filename); | |
1809 | buffer[readlen] = 0; | |
1810 | close (desc); | |
1811 | ||
5ed6ace5 | 1812 | specs = XNEWVEC (char, readlen + 1); |
b633b6c0 MK |
1813 | specs_p = specs; |
1814 | for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++) | |
1815 | { | |
1816 | int skip = 0; | |
1817 | char c = *buffer_p; | |
1818 | if (c == '\r') | |
d25a45d4 KH |
1819 | { |
1820 | if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */ | |
b633b6c0 | 1821 | skip = 1; |
d25a45d4 | 1822 | else if (*(buffer_p + 1) == '\n') /* \r\n */ |
b633b6c0 MK |
1823 | skip = 1; |
1824 | else /* \r */ | |
1825 | c = '\n'; | |
1826 | } | |
1827 | if (! skip) | |
1828 | *specs_p++ = c; | |
1829 | } | |
1830 | *specs_p = '\0'; | |
1831 | ||
1832 | free (buffer); | |
1833 | return (specs); | |
1834 | } | |
1835 | ||
1836 | /* Read compilation specs from a file named FILENAME, | |
1837 | replacing the default ones. | |
1838 | ||
1839 | A suffix which starts with `*' is a definition for | |
1840 | one of the machine-specific sub-specs. The "suffix" should be | |
0fef3fd0 | 1841 | *asm, *cc1, *cpp, *link, *startfile, etc. |
b633b6c0 MK |
1842 | The corresponding spec is stored in asm_spec, etc., |
1843 | rather than in the `compilers' vector. | |
1844 | ||
1845 | Anything invalid in the file is a fatal error. */ | |
1846 | ||
1847 | static void | |
d168aaee | 1848 | read_specs (const char *filename, bool main_p, bool user_p) |
b633b6c0 MK |
1849 | { |
1850 | char *buffer; | |
b3694847 | 1851 | char *p; |
b633b6c0 MK |
1852 | |
1853 | buffer = load_specs (filename); | |
1854 | ||
20df0482 MM |
1855 | /* Scan BUFFER for specs, putting them in the vector. */ |
1856 | p = buffer; | |
1857 | while (1) | |
1858 | { | |
1859 | char *suffix; | |
1860 | char *spec; | |
1861 | char *in, *out, *p1, *p2, *p3; | |
1862 | ||
1863 | /* Advance P in BUFFER to the next nonblank nocomment line. */ | |
1864 | p = skip_whitespace (p); | |
1865 | if (*p == 0) | |
1866 | break; | |
1867 | ||
1868 | /* Is this a special command that starts with '%'? */ | |
1869 | /* Don't allow this for the main specs file, since it would | |
1870 | encourage people to overwrite it. */ | |
1871 | if (*p == '%' && !main_p) | |
1872 | { | |
1873 | p1 = p; | |
e9a25f70 JL |
1874 | while (*p && *p != '\n') |
1875 | p++; | |
1876 | ||
d25a45d4 KH |
1877 | /* Skip '\n'. */ |
1878 | p++; | |
20df0482 | 1879 | |
d25a45d4 | 1880 | if (!strncmp (p1, "%include", sizeof ("%include") - 1) |
e9a25f70 JL |
1881 | && (p1[sizeof "%include" - 1] == ' ' |
1882 | || p1[sizeof "%include" - 1] == '\t')) | |
20df0482 MM |
1883 | { |
1884 | char *new_filename; | |
1885 | ||
1886 | p1 += sizeof ("%include"); | |
e9a25f70 JL |
1887 | while (*p1 == ' ' || *p1 == '\t') |
1888 | p1++; | |
20df0482 MM |
1889 | |
1890 | if (*p1++ != '<' || p[-2] != '>') | |
2dec80c7 JM |
1891 | fatal_error ("specs %%include syntax malformed after " |
1892 | "%ld characters", | |
1893 | (long) (p1 - buffer + 1)); | |
20df0482 MM |
1894 | |
1895 | p[-2] = '\0'; | |
00dcee0c | 1896 | new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true); |
d168aaee | 1897 | read_specs (new_filename ? new_filename : p1, false, user_p); |
20df0482 MM |
1898 | continue; |
1899 | } | |
e9a25f70 JL |
1900 | else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1) |
1901 | && (p1[sizeof "%include_noerr" - 1] == ' ' | |
1902 | || p1[sizeof "%include_noerr" - 1] == '\t')) | |
20df0482 MM |
1903 | { |
1904 | char *new_filename; | |
1905 | ||
e9a25f70 | 1906 | p1 += sizeof "%include_noerr"; |
d25a45d4 KH |
1907 | while (*p1 == ' ' || *p1 == '\t') |
1908 | p1++; | |
20df0482 MM |
1909 | |
1910 | if (*p1++ != '<' || p[-2] != '>') | |
2dec80c7 JM |
1911 | fatal_error ("specs %%include syntax malformed after " |
1912 | "%ld characters", | |
1913 | (long) (p1 - buffer + 1)); | |
20df0482 MM |
1914 | |
1915 | p[-2] = '\0'; | |
00dcee0c | 1916 | new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true); |
20df0482 | 1917 | if (new_filename) |
d168aaee | 1918 | read_specs (new_filename, false, user_p); |
20df0482 | 1919 | else if (verbose_flag) |
2dec80c7 | 1920 | fnotice (stderr, "could not find specs file %s\n", p1); |
20df0482 MM |
1921 | continue; |
1922 | } | |
e9a25f70 JL |
1923 | else if (!strncmp (p1, "%rename", sizeof "%rename" - 1) |
1924 | && (p1[sizeof "%rename" - 1] == ' ' | |
1925 | || p1[sizeof "%rename" - 1] == '\t')) | |
20df0482 MM |
1926 | { |
1927 | int name_len; | |
1928 | struct spec_list *sl; | |
169ce44d | 1929 | struct spec_list *newsl; |
20df0482 | 1930 | |
169ce44d | 1931 | /* Get original name. */ |
e9a25f70 JL |
1932 | p1 += sizeof "%rename"; |
1933 | while (*p1 == ' ' || *p1 == '\t') | |
1934 | p1++; | |
1935 | ||
9218435e | 1936 | if (! ISALPHA ((unsigned char) *p1)) |
2dec80c7 JM |
1937 | fatal_error ("specs %%rename syntax malformed after " |
1938 | "%ld characters", | |
1939 | (long) (p1 - buffer)); | |
20df0482 MM |
1940 | |
1941 | p2 = p1; | |
9218435e | 1942 | while (*p2 && !ISSPACE ((unsigned char) *p2)) |
e9a25f70 JL |
1943 | p2++; |
1944 | ||
20df0482 | 1945 | if (*p2 != ' ' && *p2 != '\t') |
2dec80c7 JM |
1946 | fatal_error ("specs %%rename syntax malformed after " |
1947 | "%ld characters", | |
1948 | (long) (p2 - buffer)); | |
20df0482 MM |
1949 | |
1950 | name_len = p2 - p1; | |
1951 | *p2++ = '\0'; | |
e9a25f70 JL |
1952 | while (*p2 == ' ' || *p2 == '\t') |
1953 | p2++; | |
1954 | ||
9218435e | 1955 | if (! ISALPHA ((unsigned char) *p2)) |
2dec80c7 JM |
1956 | fatal_error ("specs %%rename syntax malformed after " |
1957 | "%ld characters", | |
1958 | (long) (p2 - buffer)); | |
20df0482 | 1959 | |
d25a45d4 | 1960 | /* Get new spec name. */ |
20df0482 | 1961 | p3 = p2; |
9218435e | 1962 | while (*p3 && !ISSPACE ((unsigned char) *p3)) |
e9a25f70 JL |
1963 | p3++; |
1964 | ||
d25a45d4 | 1965 | if (p3 != p - 1) |
2dec80c7 JM |
1966 | fatal_error ("specs %%rename syntax malformed after " |
1967 | "%ld characters", | |
1968 | (long) (p3 - buffer)); | |
20df0482 MM |
1969 | *p3 = '\0'; |
1970 | ||
1971 | for (sl = specs; sl; sl = sl->next) | |
1972 | if (name_len == sl->name_len && !strcmp (sl->name, p1)) | |
1973 | break; | |
1974 | ||
1975 | if (!sl) | |
2dec80c7 | 1976 | fatal_error ("specs %s spec was not found to be renamed", p1); |
20df0482 | 1977 | |
e9a25f70 | 1978 | if (strcmp (p1, p2) == 0) |
20df0482 MM |
1979 | continue; |
1980 | ||
169ce44d NC |
1981 | for (newsl = specs; newsl; newsl = newsl->next) |
1982 | if (strcmp (newsl->name, p2) == 0) | |
bdc6b402 JM |
1983 | fatal_error ("%s: attempt to rename spec %qs to " |
1984 | "already defined spec %qs", | |
169ce44d NC |
1985 | filename, p1, p2); |
1986 | ||
20df0482 MM |
1987 | if (verbose_flag) |
1988 | { | |
2dec80c7 | 1989 | fnotice (stderr, "rename spec %s to %s\n", p1, p2); |
20df0482 | 1990 | #ifdef DEBUG_SPECS |
2dec80c7 | 1991 | fnotice (stderr, "spec is '%s'\n\n", *(sl->ptr_spec)); |
20df0482 MM |
1992 | #endif |
1993 | } | |
1994 | ||
d168aaee | 1995 | set_spec (p2, *(sl->ptr_spec), user_p); |
20df0482 | 1996 | if (sl->alloc_p) |
b1d5455a | 1997 | free (CONST_CAST (char *, *(sl->ptr_spec))); |
20df0482 MM |
1998 | |
1999 | *(sl->ptr_spec) = ""; | |
2000 | sl->alloc_p = 0; | |
2001 | continue; | |
2002 | } | |
2003 | else | |
2dec80c7 JM |
2004 | fatal_error ("specs unknown %% command after %ld characters", |
2005 | (long) (p1 - buffer)); | |
20df0482 MM |
2006 | } |
2007 | ||
2008 | /* Find the colon that should end the suffix. */ | |
2009 | p1 = p; | |
e9a25f70 JL |
2010 | while (*p1 && *p1 != ':' && *p1 != '\n') |
2011 | p1++; | |
2012 | ||
20df0482 MM |
2013 | /* The colon shouldn't be missing. */ |
2014 | if (*p1 != ':') | |
2dec80c7 JM |
2015 | fatal_error ("specs file malformed after %ld characters", |
2016 | (long) (p1 - buffer)); | |
e9a25f70 | 2017 | |
20df0482 MM |
2018 | /* Skip back over trailing whitespace. */ |
2019 | p2 = p1; | |
e9a25f70 JL |
2020 | while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) |
2021 | p2--; | |
2022 | ||
20df0482 MM |
2023 | /* Copy the suffix to a string. */ |
2024 | suffix = save_string (p, p2 - p); | |
2025 | /* Find the next line. */ | |
2026 | p = skip_whitespace (p1 + 1); | |
2027 | if (p[1] == 0) | |
2dec80c7 JM |
2028 | fatal_error ("specs file malformed after %ld characters", |
2029 | (long) (p - buffer)); | |
e9a25f70 | 2030 | |
20df0482 | 2031 | p1 = p; |
bbeb7b65 JW |
2032 | /* Find next blank line or end of string. */ |
2033 | while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0'))) | |
e9a25f70 JL |
2034 | p1++; |
2035 | ||
20df0482 MM |
2036 | /* Specs end at the blank line and do not include the newline. */ |
2037 | spec = save_string (p, p1 - p); | |
2038 | p = p1; | |
2039 | ||
2040 | /* Delete backslash-newline sequences from the spec. */ | |
2041 | in = spec; | |
2042 | out = spec; | |
2043 | while (*in != 0) | |
2044 | { | |
2045 | if (in[0] == '\\' && in[1] == '\n') | |
2046 | in += 2; | |
2047 | else if (in[0] == '#') | |
e9a25f70 JL |
2048 | while (*in && *in != '\n') |
2049 | in++; | |
2050 | ||
20df0482 MM |
2051 | else |
2052 | *out++ = *in++; | |
2053 | } | |
2054 | *out = 0; | |
2055 | ||
2056 | if (suffix[0] == '*') | |
2057 | { | |
2058 | if (! strcmp (suffix, "*link_command")) | |
2059 | link_command_spec = spec; | |
2060 | else | |
d168aaee | 2061 | set_spec (suffix + 1, spec, user_p); |
20df0482 MM |
2062 | } |
2063 | else | |
2064 | { | |
2065 | /* Add this pair to the vector. */ | |
2066 | compilers | |
e1e4cdc4 | 2067 | = XRESIZEVEC (struct compiler, compilers, n_compilers + 2); |
e9a25f70 | 2068 | |
20df0482 | 2069 | compilers[n_compilers].suffix = suffix; |
ea414c97 | 2070 | compilers[n_compilers].spec = spec; |
20df0482 | 2071 | n_compilers++; |
9257393c | 2072 | memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]); |
20df0482 MM |
2073 | } |
2074 | ||
2075 | if (*suffix == 0) | |
2076 | link_command_spec = spec; | |
2077 | } | |
2078 | ||
2079 | if (link_command_spec == 0) | |
2dec80c7 | 2080 | fatal_error ("spec file has no spec for linking"); |
20df0482 MM |
2081 | } |
2082 | \f | |
ed1f651b RS |
2083 | /* Record the names of temporary files we tell compilers to write, |
2084 | and delete them at the end of the run. */ | |
2085 | ||
aa34f42c RG |
2086 | /* This is the common prefix we use to make temp file names. |
2087 | It is chosen once for each run of this program. | |
2088 | It is substituted into a spec by %g or %j. | |
2089 | Thus, all temp file names contain this prefix. | |
2090 | In practice, all temp file names start with this prefix. | |
2091 | ||
2092 | This prefix comes from the envvar TMPDIR if it is defined; | |
2093 | otherwise, from the P_tmpdir macro if that is defined; | |
2094 | otherwise, in /usr/tmp or /tmp; | |
2095 | or finally the current directory if all else fails. */ | |
2096 | ||
2097 | static const char *temp_filename; | |
2098 | ||
2099 | /* Length of the prefix. */ | |
2100 | ||
2101 | static int temp_filename_length; | |
2102 | ||
ed1f651b RS |
2103 | /* Define the list of temporary files to delete. */ |
2104 | ||
2105 | struct temp_file | |
2106 | { | |
878f32c3 | 2107 | const char *name; |
ed1f651b RS |
2108 | struct temp_file *next; |
2109 | }; | |
2110 | ||
2111 | /* Queue of files to delete on success or failure of compilation. */ | |
2112 | static struct temp_file *always_delete_queue; | |
2113 | /* Queue of files to delete on failure of compilation. */ | |
2114 | static struct temp_file *failure_delete_queue; | |
2115 | ||
2116 | /* Record FILENAME as a file to be deleted automatically. | |
2117 | ALWAYS_DELETE nonzero means delete it if all compilation succeeds; | |
2118 | otherwise delete it in any case. | |
2119 | FAIL_DELETE nonzero means delete it if a compilation step fails; | |
2120 | otherwise delete it in any case. */ | |
2121 | ||
d991c721 | 2122 | void |
1d088dee | 2123 | record_temp_file (const char *filename, int always_delete, int fail_delete) |
ed1f651b | 2124 | { |
b3694847 | 2125 | char *const name = xstrdup (filename); |
ed1f651b RS |
2126 | |
2127 | if (always_delete) | |
2128 | { | |
b3694847 | 2129 | struct temp_file *temp; |
ed1f651b | 2130 | for (temp = always_delete_queue; temp; temp = temp->next) |
ba78087b | 2131 | if (! filename_cmp (name, temp->name)) |
ed1f651b | 2132 | goto already1; |
e9a25f70 | 2133 | |
5ed6ace5 | 2134 | temp = XNEW (struct temp_file); |
ed1f651b RS |
2135 | temp->next = always_delete_queue; |
2136 | temp->name = name; | |
2137 | always_delete_queue = temp; | |
e9a25f70 | 2138 | |
ed1f651b RS |
2139 | already1:; |
2140 | } | |
2141 | ||
2142 | if (fail_delete) | |
2143 | { | |
b3694847 | 2144 | struct temp_file *temp; |
ed1f651b | 2145 | for (temp = failure_delete_queue; temp; temp = temp->next) |
ba78087b | 2146 | if (! filename_cmp (name, temp->name)) |
fc429b48 TB |
2147 | { |
2148 | free (name); | |
2149 | goto already2; | |
2150 | } | |
e9a25f70 | 2151 | |
5ed6ace5 | 2152 | temp = XNEW (struct temp_file); |
ed1f651b RS |
2153 | temp->next = failure_delete_queue; |
2154 | temp->name = name; | |
2155 | failure_delete_queue = temp; | |
e9a25f70 | 2156 | |
ed1f651b RS |
2157 | already2:; |
2158 | } | |
2159 | } | |
2160 | ||
2161 | /* Delete all the temporary files whose names we previously recorded. */ | |
2162 | ||
8fd58397 DR |
2163 | #ifndef DELETE_IF_ORDINARY |
2164 | #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \ | |
2165 | do \ | |
2166 | { \ | |
2167 | if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \ | |
2168 | if (unlink (NAME) < 0) \ | |
2169 | if (VERBOSE_FLAG) \ | |
2170 | perror_with_name (NAME); \ | |
2171 | } while (0) | |
2172 | #endif | |
2173 | ||
d5ea2ac4 | 2174 | static void |
1d088dee | 2175 | delete_if_ordinary (const char *name) |
d5ea2ac4 RK |
2176 | { |
2177 | struct stat st; | |
2178 | #ifdef DEBUG | |
2179 | int i, c; | |
2180 | ||
2181 | printf ("Delete %s? (y or n) ", name); | |
2182 | fflush (stdout); | |
2183 | i = getchar (); | |
2184 | if (i != '\n') | |
e9a25f70 JL |
2185 | while ((c = getchar ()) != '\n' && c != EOF) |
2186 | ; | |
2187 | ||
d5ea2ac4 RK |
2188 | if (i == 'y' || i == 'Y') |
2189 | #endif /* DEBUG */ | |
8fd58397 | 2190 | DELETE_IF_ORDINARY (name, st, verbose_flag); |
d5ea2ac4 RK |
2191 | } |
2192 | ||
ed1f651b | 2193 | static void |
1d088dee | 2194 | delete_temp_files (void) |
ed1f651b | 2195 | { |
b3694847 | 2196 | struct temp_file *temp; |
ed1f651b RS |
2197 | |
2198 | for (temp = always_delete_queue; temp; temp = temp->next) | |
d5ea2ac4 | 2199 | delete_if_ordinary (temp->name); |
ed1f651b RS |
2200 | always_delete_queue = 0; |
2201 | } | |
2202 | ||
2203 | /* Delete all the files to be deleted on error. */ | |
2204 | ||
2205 | static void | |
1d088dee | 2206 | delete_failure_queue (void) |
ed1f651b | 2207 | { |
b3694847 | 2208 | struct temp_file *temp; |
ed1f651b RS |
2209 | |
2210 | for (temp = failure_delete_queue; temp; temp = temp->next) | |
d5ea2ac4 | 2211 | delete_if_ordinary (temp->name); |
ed1f651b RS |
2212 | } |
2213 | ||
2214 | static void | |
1d088dee | 2215 | clear_failure_queue (void) |
ed1f651b RS |
2216 | { |
2217 | failure_delete_queue = 0; | |
2218 | } | |
b3865ca9 | 2219 | \f |
00dcee0c AM |
2220 | /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK |
2221 | returns non-NULL. | |
2222 | If DO_MULTI is true iterate over the paths twice, first with multilib | |
2223 | suffix then without, otherwise iterate over the paths once without | |
2224 | adding a multilib suffix. When DO_MULTI is true, some attempt is made | |
2225 | to avoid visiting the same path twice, but we could do better. For | |
2226 | instance, /usr/lib/../lib is considered different from /usr/lib. | |
2227 | At least EXTRA_SPACE chars past the end of the path passed to | |
2228 | CALLBACK are available for use by the callback. | |
2229 | CALLBACK_INFO allows extra parameters to be passed to CALLBACK. | |
2230 | ||
2231 | Returns the value returned by CALLBACK. */ | |
2232 | ||
2233 | static void * | |
2234 | for_each_path (const struct path_prefix *paths, | |
2235 | bool do_multi, | |
2236 | size_t extra_space, | |
2237 | void *(*callback) (char *, void *), | |
2238 | void *callback_info) | |
b3865ca9 | 2239 | { |
00dcee0c AM |
2240 | struct prefix_list *pl; |
2241 | const char *multi_dir = NULL; | |
2242 | const char *multi_os_dir = NULL; | |
e0cdc09f | 2243 | const char *multiarch_suffix = NULL; |
00dcee0c AM |
2244 | const char *multi_suffix; |
2245 | const char *just_multi_suffix; | |
2246 | char *path = NULL; | |
2247 | void *ret = NULL; | |
2248 | bool skip_multi_dir = false; | |
2249 | bool skip_multi_os_dir = false; | |
2250 | ||
2251 | multi_suffix = machine_suffix; | |
2252 | just_multi_suffix = just_machine_suffix; | |
2253 | if (do_multi && multilib_dir && strcmp (multilib_dir, ".") != 0) | |
b3865ca9 | 2254 | { |
00dcee0c AM |
2255 | multi_dir = concat (multilib_dir, dir_separator_str, NULL); |
2256 | multi_suffix = concat (multi_suffix, multi_dir, NULL); | |
2257 | just_multi_suffix = concat (just_multi_suffix, multi_dir, NULL); | |
2258 | } | |
2259 | if (do_multi && multilib_os_dir && strcmp (multilib_os_dir, ".") != 0) | |
2260 | multi_os_dir = concat (multilib_os_dir, dir_separator_str, NULL); | |
e0cdc09f MK |
2261 | if (multiarch_dir) |
2262 | multiarch_suffix = concat (multiarch_dir, dir_separator_str, NULL); | |
b3865ca9 | 2263 | |
00dcee0c AM |
2264 | while (1) |
2265 | { | |
2266 | size_t multi_dir_len = 0; | |
2267 | size_t multi_os_dir_len = 0; | |
e0cdc09f | 2268 | size_t multiarch_len = 0; |
00dcee0c AM |
2269 | size_t suffix_len; |
2270 | size_t just_suffix_len; | |
2271 | size_t len; | |
2272 | ||
2273 | if (multi_dir) | |
2274 | multi_dir_len = strlen (multi_dir); | |
2275 | if (multi_os_dir) | |
2276 | multi_os_dir_len = strlen (multi_os_dir); | |
e0cdc09f MK |
2277 | if (multiarch_suffix) |
2278 | multiarch_len = strlen (multiarch_suffix); | |
00dcee0c AM |
2279 | suffix_len = strlen (multi_suffix); |
2280 | just_suffix_len = strlen (just_multi_suffix); | |
2281 | ||
2282 | if (path == NULL) | |
b3865ca9 | 2283 | { |
00dcee0c | 2284 | len = paths->max_len + extra_space + 1; |
e0cdc09f | 2285 | len += MAX (MAX (suffix_len, multi_os_dir_len), multiarch_len); |
5ed6ace5 | 2286 | path = XNEWVEC (char, len); |
b3865ca9 RS |
2287 | } |
2288 | ||
00dcee0c | 2289 | for (pl = paths->plist; pl != 0; pl = pl->next) |
ae04227b | 2290 | { |
00dcee0c AM |
2291 | len = strlen (pl->prefix); |
2292 | memcpy (path, pl->prefix, len); | |
9218435e | 2293 | |
00dcee0c AM |
2294 | /* Look first in MACHINE/VERSION subdirectory. */ |
2295 | if (!skip_multi_dir) | |
2296 | { | |
2297 | memcpy (path + len, multi_suffix, suffix_len + 1); | |
2298 | ret = callback (path, callback_info); | |
2299 | if (ret) | |
2300 | break; | |
2301 | } | |
2302 | ||
2303 | /* Some paths are tried with just the machine (ie. target) | |
2304 | subdir. This is used for finding as, ld, etc. */ | |
2305 | if (!skip_multi_dir | |
2306 | && pl->require_machine_suffix == 2) | |
2307 | { | |
2308 | memcpy (path + len, just_multi_suffix, just_suffix_len + 1); | |
2309 | ret = callback (path, callback_info); | |
2310 | if (ret) | |
2311 | break; | |
2312 | } | |
2313 | ||
e0cdc09f MK |
2314 | /* Now try the multiarch path. */ |
2315 | if (!skip_multi_dir | |
2316 | && !pl->require_machine_suffix && multiarch_dir) | |
2317 | { | |
2318 | memcpy (path + len, multiarch_suffix, multiarch_len + 1); | |
2319 | ret = callback (path, callback_info); | |
2320 | if (ret) | |
2321 | break; | |
2322 | } | |
2323 | ||
00dcee0c AM |
2324 | /* Now try the base path. */ |
2325 | if (!pl->require_machine_suffix | |
2326 | && !(pl->os_multilib ? skip_multi_os_dir : skip_multi_dir)) | |
2327 | { | |
2328 | const char *this_multi; | |
2329 | size_t this_multi_len; | |
2330 | ||
2331 | if (pl->os_multilib) | |
2332 | { | |
2333 | this_multi = multi_os_dir; | |
2334 | this_multi_len = multi_os_dir_len; | |
2335 | } | |
2336 | else | |
2337 | { | |
2338 | this_multi = multi_dir; | |
2339 | this_multi_len = multi_dir_len; | |
2340 | } | |
2341 | ||
2342 | if (this_multi_len) | |
2343 | memcpy (path + len, this_multi, this_multi_len + 1); | |
2344 | else | |
2345 | path[len] = '\0'; | |
2346 | ||
2347 | ret = callback (path, callback_info); | |
2348 | if (ret) | |
2349 | break; | |
2350 | } | |
ae04227b | 2351 | } |
00dcee0c AM |
2352 | if (pl) |
2353 | break; | |
ae04227b | 2354 | |
00dcee0c AM |
2355 | if (multi_dir == NULL && multi_os_dir == NULL) |
2356 | break; | |
b3865ca9 | 2357 | |
00dcee0c AM |
2358 | /* Run through the paths again, this time without multilibs. |
2359 | Don't repeat any we have already seen. */ | |
2360 | if (multi_dir) | |
2361 | { | |
b1d5455a | 2362 | free (CONST_CAST (char *, multi_dir)); |
00dcee0c | 2363 | multi_dir = NULL; |
b1d5455a | 2364 | free (CONST_CAST (char *, multi_suffix)); |
00dcee0c | 2365 | multi_suffix = machine_suffix; |
b1d5455a | 2366 | free (CONST_CAST (char *, just_multi_suffix)); |
00dcee0c | 2367 | just_multi_suffix = just_machine_suffix; |
b3865ca9 | 2368 | } |
00dcee0c AM |
2369 | else |
2370 | skip_multi_dir = true; | |
2371 | if (multi_os_dir) | |
2372 | { | |
b1d5455a | 2373 | free (CONST_CAST (char *, multi_os_dir)); |
00dcee0c AM |
2374 | multi_os_dir = NULL; |
2375 | } | |
2376 | else | |
2377 | skip_multi_os_dir = true; | |
2378 | } | |
2379 | ||
2380 | if (multi_dir) | |
2381 | { | |
b1d5455a KG |
2382 | free (CONST_CAST (char *, multi_dir)); |
2383 | free (CONST_CAST (char *, multi_suffix)); | |
2384 | free (CONST_CAST (char *, just_multi_suffix)); | |
b3865ca9 | 2385 | } |
00dcee0c | 2386 | if (multi_os_dir) |
b1d5455a | 2387 | free (CONST_CAST (char *, multi_os_dir)); |
00dcee0c AM |
2388 | if (ret != path) |
2389 | free (path); | |
2390 | return ret; | |
2391 | } | |
2392 | ||
2393 | /* Callback for build_search_list. Adds path to obstack being built. */ | |
2394 | ||
2395 | struct add_to_obstack_info { | |
2396 | struct obstack *ob; | |
2397 | bool check_dir; | |
2398 | bool first_time; | |
2399 | }; | |
2400 | ||
2401 | static void * | |
2402 | add_to_obstack (char *path, void *data) | |
2403 | { | |
e1e4cdc4 | 2404 | struct add_to_obstack_info *info = (struct add_to_obstack_info *) data; |
00dcee0c AM |
2405 | |
2406 | if (info->check_dir && !is_directory (path, false)) | |
2407 | return NULL; | |
2408 | ||
2409 | if (!info->first_time) | |
2410 | obstack_1grow (info->ob, PATH_SEPARATOR); | |
2411 | ||
2412 | obstack_grow (info->ob, path, strlen (path)); | |
2413 | ||
2414 | info->first_time = false; | |
2415 | return NULL; | |
2416 | } | |
2417 | ||
47d33318 FXC |
2418 | /* Add or change the value of an environment variable, outputting the |
2419 | change to standard error if in verbose mode. */ | |
2420 | static void | |
e9c15f6e | 2421 | xputenv (const char *string) |
47d33318 FXC |
2422 | { |
2423 | if (verbose_flag) | |
2dec80c7 | 2424 | fnotice (stderr, "%s\n", string); |
e9c15f6e | 2425 | putenv (CONST_CAST (char *, string)); |
47d33318 FXC |
2426 | } |
2427 | ||
00dcee0c AM |
2428 | /* Build a list of search directories from PATHS. |
2429 | PREFIX is a string to prepend to the list. | |
2430 | If CHECK_DIR_P is true we ensure the directory exists. | |
2431 | If DO_MULTI is true, multilib paths are output first, then | |
2432 | non-multilib paths. | |
2433 | This is used mostly by putenv_from_prefixes so we use `collect_obstack'. | |
2434 | It is also used by the --print-search-dirs flag. */ | |
2435 | ||
2436 | static char * | |
2437 | build_search_list (const struct path_prefix *paths, const char *prefix, | |
2438 | bool check_dir, bool do_multi) | |
2439 | { | |
2440 | struct add_to_obstack_info info; | |
2441 | ||
2442 | info.ob = &collect_obstack; | |
2443 | info.check_dir = check_dir; | |
2444 | info.first_time = true; | |
2445 | ||
2446 | obstack_grow (&collect_obstack, prefix, strlen (prefix)); | |
2447 | obstack_1grow (&collect_obstack, '='); | |
2448 | ||
2449 | for_each_path (paths, do_multi, 0, add_to_obstack, &info); | |
e9a25f70 | 2450 | |
3ae7de4e | 2451 | obstack_1grow (&collect_obstack, '\0'); |
7973fd2a | 2452 | return XOBFINISH (&collect_obstack, char *); |
b3865ca9 RS |
2453 | } |
2454 | ||
0f41302f MS |
2455 | /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables |
2456 | for collect. */ | |
2628b9d3 DE |
2457 | |
2458 | static void | |
00dcee0c AM |
2459 | putenv_from_prefixes (const struct path_prefix *paths, const char *env_var, |
2460 | bool do_multi) | |
2628b9d3 | 2461 | { |
47d33318 | 2462 | xputenv (build_search_list (paths, env_var, true, do_multi)); |
2628b9d3 | 2463 | } |
ed1f651b | 2464 | \f |
ca606201 ILT |
2465 | /* Check whether NAME can be accessed in MODE. This is like access, |
2466 | except that it never considers directories to be executable. */ | |
2467 | ||
2468 | static int | |
1d088dee | 2469 | access_check (const char *name, int mode) |
ca606201 ILT |
2470 | { |
2471 | if (mode == X_OK) | |
2472 | { | |
2473 | struct stat st; | |
2474 | ||
2475 | if (stat (name, &st) < 0 | |
2476 | || S_ISDIR (st.st_mode)) | |
2477 | return -1; | |
2478 | } | |
2479 | ||
2480 | return access (name, mode); | |
2481 | } | |
2482 | ||
00dcee0c AM |
2483 | /* Callback for find_a_file. Appends the file name to the directory |
2484 | path. If the resulting file exists in the right mode, return the | |
2485 | full pathname to the file. */ | |
2486 | ||
2487 | struct file_at_path_info { | |
2488 | const char *name; | |
2489 | const char *suffix; | |
2490 | int name_len; | |
2491 | int suffix_len; | |
2492 | int mode; | |
2493 | }; | |
2494 | ||
2495 | static void * | |
2496 | file_at_path (char *path, void *data) | |
2497 | { | |
e1e4cdc4 | 2498 | struct file_at_path_info *info = (struct file_at_path_info *) data; |
00dcee0c AM |
2499 | size_t len = strlen (path); |
2500 | ||
2501 | memcpy (path + len, info->name, info->name_len); | |
2502 | len += info->name_len; | |
2503 | ||
2504 | /* Some systems have a suffix for executable files. | |
2505 | So try appending that first. */ | |
2506 | if (info->suffix_len) | |
2507 | { | |
2508 | memcpy (path + len, info->suffix, info->suffix_len + 1); | |
2509 | if (access_check (path, info->mode) == 0) | |
2510 | return path; | |
2511 | } | |
2512 | ||
2513 | path[len] = '\0'; | |
2514 | if (access_check (path, info->mode) == 0) | |
2515 | return path; | |
2516 | ||
2517 | return NULL; | |
2518 | } | |
2519 | ||
ed1f651b | 2520 | /* Search for NAME using the prefix list PREFIXES. MODE is passed to |
00dcee0c AM |
2521 | access to check permissions. If DO_MULTI is true, search multilib |
2522 | paths then non-multilib paths, otherwise do not search multilib paths. | |
0f41302f | 2523 | Return 0 if not found, otherwise return its name, allocated with malloc. */ |
ed1f651b RS |
2524 | |
2525 | static char * | |
00dcee0c AM |
2526 | find_a_file (const struct path_prefix *pprefix, const char *name, int mode, |
2527 | bool do_multi) | |
ed1f651b | 2528 | { |
00dcee0c | 2529 | struct file_at_path_info info; |
ed1f651b | 2530 | |
ab339d62 | 2531 | #ifdef DEFAULT_ASSEMBLER |
c5c0b3d9 | 2532 | if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0) |
ad85216e | 2533 | return xstrdup (DEFAULT_ASSEMBLER); |
ab339d62 AO |
2534 | #endif |
2535 | ||
2536 | #ifdef DEFAULT_LINKER | |
c3284718 | 2537 | if (! strcmp (name, "ld") && access (DEFAULT_LINKER, mode) == 0) |
ad85216e | 2538 | return xstrdup (DEFAULT_LINKER); |
ab339d62 AO |
2539 | #endif |
2540 | ||
ed1f651b RS |
2541 | /* Determine the filename to execute (special case for absolute paths). */ |
2542 | ||
3dce1408 | 2543 | if (IS_ABSOLUTE_PATH (name)) |
ed1f651b | 2544 | { |
ab339d62 | 2545 | if (access (name, mode) == 0) |
00dcee0c | 2546 | return xstrdup (name); |
460dcab4 | 2547 | |
00dcee0c AM |
2548 | return NULL; |
2549 | } | |
460dcab4 | 2550 | |
00dcee0c AM |
2551 | info.name = name; |
2552 | info.suffix = (mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : ""; | |
2553 | info.name_len = strlen (info.name); | |
2554 | info.suffix_len = strlen (info.suffix); | |
2555 | info.mode = mode; | |
ed1f651b | 2556 | |
e1e4cdc4 KG |
2557 | return (char*) for_each_path (pprefix, do_multi, |
2558 | info.name_len + info.suffix_len, | |
2559 | file_at_path, &info); | |
ed1f651b RS |
2560 | } |
2561 | ||
922a4beb | 2562 | /* Ranking of prefixes in the sort list. -B prefixes are put before |
9218435e | 2563 | all others. */ |
922a4beb AC |
2564 | |
2565 | enum path_prefix_priority | |
2566 | { | |
2567 | PREFIX_PRIORITY_B_OPT, | |
2568 | PREFIX_PRIORITY_LAST | |
2569 | }; | |
2570 | ||
fbe5a4a6 | 2571 | /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending |
922a4beb AC |
2572 | order according to PRIORITY. Within each PRIORITY, new entries are |
2573 | appended. | |
ed1f651b RS |
2574 | |
2575 | If WARN is nonzero, we will warn if no file is found | |
2576 | through this prefix. WARN should point to an int | |
ae04227b CH |
2577 | which will be set to 1 if this entry is used. |
2578 | ||
e9a25f70 JL |
2579 | COMPONENT is the value to be passed to update_path. |
2580 | ||
ae04227b CH |
2581 | REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without |
2582 | the complete value of machine_suffix. | |
2583 | 2 means try both machine_suffix and just_machine_suffix. */ | |
ed1f651b RS |
2584 | |
2585 | static void | |
1d088dee AJ |
2586 | add_prefix (struct path_prefix *pprefix, const char *prefix, |
2587 | const char *component, /* enum prefix_priority */ int priority, | |
1a5d37a1 | 2588 | int require_machine_suffix, int os_multilib) |
ed1f651b RS |
2589 | { |
2590 | struct prefix_list *pl, **prev; | |
2591 | int len; | |
2592 | ||
922a4beb AC |
2593 | for (prev = &pprefix->plist; |
2594 | (*prev) != NULL && (*prev)->priority <= priority; | |
2595 | prev = &(*prev)->next) | |
2596 | ; | |
ed1f651b | 2597 | |
f9da5064 | 2598 | /* Keep track of the longest prefix. */ |
ed1f651b | 2599 | |
e9a25f70 | 2600 | prefix = update_path (prefix, component); |
ed1f651b RS |
2601 | len = strlen (prefix); |
2602 | if (len > pprefix->max_len) | |
2603 | pprefix->max_len = len; | |
2604 | ||
5ed6ace5 | 2605 | pl = XNEW (struct prefix_list); |
51c04256 | 2606 | pl->prefix = prefix; |
ed1f651b | 2607 | pl->require_machine_suffix = require_machine_suffix; |
922a4beb | 2608 | pl->priority = priority; |
5bbcd587 | 2609 | pl->os_multilib = os_multilib; |
ed1f651b | 2610 | |
f9da5064 | 2611 | /* Insert after PREV. */ |
922a4beb AC |
2612 | pl->next = (*prev); |
2613 | (*prev) = pl; | |
ed1f651b | 2614 | } |
4977bab6 ZW |
2615 | |
2616 | /* Same as add_prefix, but prepending target_system_root to prefix. */ | |
f4c0a303 | 2617 | /* The target_system_root prefix has been relocated by gcc_exec_prefix. */ |
4977bab6 | 2618 | static void |
1d088dee AJ |
2619 | add_sysrooted_prefix (struct path_prefix *pprefix, const char *prefix, |
2620 | const char *component, | |
2621 | /* enum prefix_priority */ int priority, | |
1a5d37a1 | 2622 | int require_machine_suffix, int os_multilib) |
4977bab6 | 2623 | { |
3dce1408 | 2624 | if (!IS_ABSOLUTE_PATH (prefix)) |
bdc6b402 | 2625 | fatal_error ("system path %qs is not absolute", prefix); |
4977bab6 ZW |
2626 | |
2627 | if (target_system_root) | |
2628 | { | |
2fda54bd MK |
2629 | char *sysroot_no_trailing_dir_separator = xstrdup (target_system_root); |
2630 | size_t sysroot_len = strlen (target_system_root); | |
2631 | ||
2632 | if (sysroot_len > 0 | |
2633 | && target_system_root[sysroot_len - 1] == DIR_SEPARATOR) | |
2634 | sysroot_no_trailing_dir_separator[sysroot_len - 1] = '\0'; | |
2635 | ||
e7f13528 | 2636 | if (target_sysroot_suffix) |
fc429b48 TB |
2637 | prefix = concat (sysroot_no_trailing_dir_separator, |
2638 | target_sysroot_suffix, prefix, NULL); | |
2639 | else | |
2640 | prefix = concat (sysroot_no_trailing_dir_separator, prefix, NULL); | |
2641 | ||
2fda54bd | 2642 | free (sysroot_no_trailing_dir_separator); |
e7f13528 | 2643 | |
4977bab6 ZW |
2644 | /* We have to override this because GCC's notion of sysroot |
2645 | moves along with GCC. */ | |
2646 | component = "GCC"; | |
2647 | } | |
2648 | ||
2649 | add_prefix (pprefix, prefix, component, priority, | |
1a5d37a1 | 2650 | require_machine_suffix, os_multilib); |
4977bab6 | 2651 | } |
ed1f651b RS |
2652 | \f |
2653 | /* Execute the command specified by the arguments on the current line of spec. | |
2654 | When using pipes, this includes several piped-together commands | |
2655 | with `|' between them. | |
2656 | ||
2657 | Return 0 if successful, -1 if failed. */ | |
2658 | ||
2659 | static int | |
1d088dee | 2660 | execute (void) |
ed1f651b RS |
2661 | { |
2662 | int i; | |
2663 | int n_commands; /* # of command. */ | |
2664 | char *string; | |
054e88a8 | 2665 | struct pex_obj *pex; |
ed1f651b | 2666 | struct command |
d25a45d4 KH |
2667 | { |
2668 | const char *prog; /* program name. */ | |
2669 | const char **argv; /* vector of args. */ | |
d25a45d4 | 2670 | }; |
5b634ee0 | 2671 | const char *arg; |
ed1f651b RS |
2672 | |
2673 | struct command *commands; /* each command buffer with above info. */ | |
2674 | ||
3b5edfee | 2675 | gcc_assert (!processing_spec_function); |
f3226a90 | 2676 | |
fe7df9c4 SP |
2677 | if (wrapper_string) |
2678 | { | |
5b634ee0 | 2679 | string = find_a_file (&exec_prefixes, |
9771b263 | 2680 | argbuf[0], X_OK, false); |
5b634ee0 | 2681 | if (string) |
9771b263 | 2682 | argbuf[0] = string; |
fe7df9c4 SP |
2683 | insert_wrapper (wrapper_string); |
2684 | } | |
2685 | ||
ed1f651b | 2686 | /* Count # of piped commands. */ |
9771b263 | 2687 | for (n_commands = 1, i = 0; argbuf.iterate (i, &arg); i++) |
5b634ee0 | 2688 | if (strcmp (arg, "|") == 0) |
ed1f651b RS |
2689 | n_commands++; |
2690 | ||
2691 | /* Get storage for each command. */ | |
e1e4cdc4 | 2692 | commands = (struct command *) alloca (n_commands * sizeof (struct command)); |
ed1f651b RS |
2693 | |
2694 | /* Split argbuf into its separate piped processes, | |
2695 | and record info about each one. | |
2696 | Also search for the programs that are to be run. */ | |
2697 | ||
9771b263 | 2698 | argbuf.safe_push (0); |
5b634ee0 | 2699 | |
9771b263 DN |
2700 | commands[0].prog = argbuf[0]; /* first command. */ |
2701 | commands[0].argv = argbuf.address (); | |
b8698a0f | 2702 | |
fe7df9c4 SP |
2703 | if (!wrapper_string) |
2704 | { | |
2705 | string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, false); | |
2706 | commands[0].argv[0] = (string) ? string : commands[0].argv[0]; | |
2707 | } | |
ed1f651b | 2708 | |
9771b263 | 2709 | for (n_commands = 1, i = 0; argbuf.iterate (i, &arg); i++) |
5b634ee0 | 2710 | if (arg && strcmp (arg, "|") == 0) |
ed1f651b | 2711 | { /* each command. */ |
6405c0ec | 2712 | #if defined (__MSDOS__) || defined (OS2) || defined (VMS) |
2dec80c7 | 2713 | fatal_error ("-pipe not supported"); |
ed1f651b | 2714 | #endif |
9771b263 | 2715 | argbuf[i] = 0; /* Termination of |
5b634ee0 | 2716 | command args. */ |
9771b263 | 2717 | commands[n_commands].prog = argbuf[i + 1]; |
5b634ee0 | 2718 | commands[n_commands].argv |
9771b263 | 2719 | = &(argbuf.address ())[i + 1]; |
5bbcd587 | 2720 | string = find_a_file (&exec_prefixes, commands[n_commands].prog, |
00dcee0c | 2721 | X_OK, false); |
ed1f651b RS |
2722 | if (string) |
2723 | commands[n_commands].argv[0] = string; | |
2724 | n_commands++; | |
2725 | } | |
2726 | ||
ed1f651b RS |
2727 | /* If -v, print what we are about to do, and maybe query. */ |
2728 | ||
b3865ca9 | 2729 | if (verbose_flag) |
ed1f651b | 2730 | { |
b8468bc7 NC |
2731 | /* For help listings, put a blank line between sub-processes. */ |
2732 | if (print_help_list) | |
2733 | fputc ('\n', stderr); | |
9218435e | 2734 | |
ed1f651b | 2735 | /* Print each piped command as a separate line. */ |
d25a45d4 | 2736 | for (i = 0; i < n_commands; i++) |
ed1f651b | 2737 | { |
37620334 | 2738 | const char *const *j; |
ed1f651b | 2739 | |
589005ff KH |
2740 | if (verbose_only_flag) |
2741 | { | |
99f78cdd IR |
2742 | for (j = commands[i].argv; *j; j++) |
2743 | { | |
88f92c0f | 2744 | const char *p; |
99f78cdd | 2745 | for (p = *j; *p; ++p) |
09b201fc JJ |
2746 | if (!ISALNUM ((unsigned char) *p) |
2747 | && *p != '_' && *p != '/' && *p != '-' && *p != '.') | |
2748 | break; | |
2749 | if (*p || !*j) | |
99f78cdd | 2750 | { |
09b201fc JJ |
2751 | fprintf (stderr, " \""); |
2752 | for (p = *j; *p; ++p) | |
2753 | { | |
2754 | if (*p == '"' || *p == '\\' || *p == '$') | |
2755 | fputc ('\\', stderr); | |
2756 | fputc (*p, stderr); | |
2757 | } | |
2758 | fputc ('"', stderr); | |
99f78cdd | 2759 | } |
7fcf46f5 JZ |
2760 | /* If it's empty, print "". */ |
2761 | else if (!**j) | |
2762 | fprintf (stderr, " \"\""); | |
09b201fc JJ |
2763 | else |
2764 | fprintf (stderr, " %s", *j); | |
99f78cdd | 2765 | } |
589005ff KH |
2766 | } |
2767 | else | |
99f78cdd | 2768 | for (j = commands[i].argv; *j; j++) |
7fcf46f5 JZ |
2769 | /* If it's empty, print "". */ |
2770 | if (!**j) | |
2771 | fprintf (stderr, " \"\""); | |
2772 | else | |
2773 | fprintf (stderr, " %s", *j); | |
ed1f651b RS |
2774 | |
2775 | /* Print a pipe symbol after all but the last command. */ | |
2776 | if (i + 1 != n_commands) | |
2777 | fprintf (stderr, " |"); | |
2778 | fprintf (stderr, "\n"); | |
2779 | } | |
2780 | fflush (stderr); | |
99f78cdd | 2781 | if (verbose_only_flag != 0) |
6a40fb21 AP |
2782 | { |
2783 | /* verbose_only_flag should act as if the spec was | |
2784 | executed, so increment execution_count before | |
ba228239 | 2785 | returning. This prevents spurious warnings about |
6a40fb21 AP |
2786 | unused linker input files, etc. */ |
2787 | execution_count++; | |
2788 | return 0; | |
2789 | } | |
ed1f651b | 2790 | #ifdef DEBUG |
2dec80c7 | 2791 | fnotice (stderr, "\nGo ahead? (y or n) "); |
ed1f651b RS |
2792 | fflush (stderr); |
2793 | i = getchar (); | |
2794 | if (i != '\n') | |
e9a25f70 JL |
2795 | while (getchar () != '\n') |
2796 | ; | |
2797 | ||
ed1f651b RS |
2798 | if (i != 'y' && i != 'Y') |
2799 | return 0; | |
2800 | #endif /* DEBUG */ | |
2801 | } | |
2802 | ||
414d23ae | 2803 | #ifdef ENABLE_VALGRIND_CHECKING |
fbe5a4a6 | 2804 | /* Run the each command through valgrind. To simplify prepending the |
414d23ae HPN |
2805 | path to valgrind and the option "-q" (for quiet operation unless |
2806 | something triggers), we allocate a separate argv array. */ | |
2807 | ||
2808 | for (i = 0; i < n_commands; i++) | |
2809 | { | |
2810 | const char **argv; | |
2811 | int argc; | |
2812 | int j; | |
2813 | ||
2814 | for (argc = 0; commands[i].argv[argc] != NULL; argc++) | |
2815 | ; | |
2816 | ||
63ab5b8c | 2817 | argv = XALLOCAVEC (const char *, argc + 3); |
414d23ae HPN |
2818 | |
2819 | argv[0] = VALGRIND_PATH; | |
2820 | argv[1] = "-q"; | |
2821 | for (j = 2; j < argc + 2; j++) | |
2822 | argv[j] = commands[i].argv[j - 2]; | |
2823 | argv[j] = NULL; | |
2824 | ||
2825 | commands[i].argv = argv; | |
2826 | commands[i].prog = argv[0]; | |
2827 | } | |
2828 | #endif | |
2829 | ||
ed1f651b RS |
2830 | /* Run each piped subprocess. */ |
2831 | ||
bdde878c AO |
2832 | pex = pex_init (PEX_USE_PIPES | ((report_times || report_times_to_file) |
2833 | ? PEX_RECORD_TIMES : 0), | |
6afbc885 | 2834 | progname, temp_filename); |
054e88a8 | 2835 | if (pex == NULL) |
bdc6b402 | 2836 | fatal_error ("pex_init failed: %m"); |
054e88a8 | 2837 | |
ed1f651b RS |
2838 | for (i = 0; i < n_commands; i++) |
2839 | { | |
054e88a8 ILT |
2840 | const char *errmsg; |
2841 | int err; | |
fbd40359 | 2842 | const char *string = commands[i].argv[0]; |
ed1f651b | 2843 | |
054e88a8 ILT |
2844 | errmsg = pex_run (pex, |
2845 | ((i + 1 == n_commands ? PEX_LAST : 0) | |
2846 | | (string == commands[i].prog ? PEX_SEARCH : 0)), | |
b1d5455a | 2847 | string, CONST_CAST (char **, commands[i].argv), |
054e88a8 ILT |
2848 | NULL, NULL, &err); |
2849 | if (errmsg != NULL) | |
2850 | { | |
2851 | if (err == 0) | |
2dec80c7 | 2852 | fatal_error (errmsg); |
054e88a8 ILT |
2853 | else |
2854 | { | |
2855 | errno = err; | |
2856 | pfatal_with_name (errmsg); | |
2857 | } | |
2858 | } | |
ed1f651b | 2859 | |
dc10fd96 | 2860 | if (i && string != commands[i].prog) |
b1d5455a | 2861 | free (CONST_CAST (char *, string)); |
ed1f651b RS |
2862 | } |
2863 | ||
2864 | execution_count++; | |
2865 | ||
054e88a8 | 2866 | /* Wait for all the subprocesses to finish. */ |
ed1f651b RS |
2867 | |
2868 | { | |
054e88a8 ILT |
2869 | int *statuses; |
2870 | struct pex_time *times = NULL; | |
ed1f651b RS |
2871 | int ret_code = 0; |
2872 | ||
e1e4cdc4 | 2873 | statuses = (int *) alloca (n_commands * sizeof (int)); |
054e88a8 | 2874 | if (!pex_get_status (pex, n_commands, statuses)) |
bdc6b402 | 2875 | fatal_error ("failed to get exit status: %m"); |
054e88a8 | 2876 | |
bdde878c | 2877 | if (report_times || report_times_to_file) |
ed1f651b | 2878 | { |
e1e4cdc4 | 2879 | times = (struct pex_time *) alloca (n_commands * sizeof (struct pex_time)); |
054e88a8 | 2880 | if (!pex_get_times (pex, n_commands, times)) |
bdc6b402 | 2881 | fatal_error ("failed to get process times: %m"); |
054e88a8 | 2882 | } |
ed1f651b | 2883 | |
054e88a8 | 2884 | pex_free (pex); |
ed1f651b | 2885 | |
054e88a8 ILT |
2886 | for (i = 0; i < n_commands; ++i) |
2887 | { | |
2888 | int status = statuses[i]; | |
03c41c05 | 2889 | |
054e88a8 ILT |
2890 | if (WIFSIGNALED (status)) |
2891 | { | |
c334349b | 2892 | #ifdef SIGPIPE |
054e88a8 ILT |
2893 | /* SIGPIPE is a special case. It happens in -pipe mode |
2894 | when the compiler dies before the preprocessor is done, | |
2895 | or the assembler dies before the compiler is done. | |
2896 | There's generally been an error already, and this is | |
2897 | just fallout. So don't generate another error unless | |
2898 | we would otherwise have succeeded. */ | |
2899 | if (WTERMSIG (status) == SIGPIPE | |
2900 | && (signal_count || greatest_status >= MIN_FATAL_STATUS)) | |
eeac616e VR |
2901 | { |
2902 | signal_count++; | |
2903 | ret_code = -1; | |
2904 | } | |
054e88a8 ILT |
2905 | else |
2906 | #endif | |
6afbc885 JM |
2907 | internal_error ("%s (program %s)", |
2908 | strsignal (WTERMSIG (status)), commands[i].prog); | |
054e88a8 ILT |
2909 | } |
2910 | else if (WIFEXITED (status) | |
2911 | && WEXITSTATUS (status) >= MIN_FATAL_STATUS) | |
2912 | { | |
dc10fd96 JJ |
2913 | /* For ICEs in cc1, cc1obj, cc1plus see if it is |
2914 | reproducible or not. */ | |
2915 | const char *p; | |
2916 | if (flag_report_bug | |
2917 | && WEXITSTATUS (status) == ICE_EXIT_CODE | |
2918 | && i == 0 | |
2919 | && (p = strrchr (commands[0].argv[0], DIR_SEPARATOR)) | |
2920 | && ! strncmp (p + 1, "cc1", 3)) | |
1120a850 | 2921 | try_generate_repro (commands[0].argv); |
054e88a8 ILT |
2922 | if (WEXITSTATUS (status) > greatest_status) |
2923 | greatest_status = WEXITSTATUS (status); | |
2924 | ret_code = -1; | |
2925 | } | |
2926 | ||
bdde878c | 2927 | if (report_times || report_times_to_file) |
054e88a8 ILT |
2928 | { |
2929 | struct pex_time *pt = ×[i]; | |
2930 | double ut, st; | |
2931 | ||
2932 | ut = ((double) pt->user_seconds | |
2933 | + (double) pt->user_microseconds / 1.0e6); | |
2934 | st = ((double) pt->system_seconds | |
2935 | + (double) pt->system_microseconds / 1.0e6); | |
2936 | ||
2937 | if (ut + st != 0) | |
bdde878c AO |
2938 | { |
2939 | if (report_times) | |
2dec80c7 JM |
2940 | fnotice (stderr, "# %s %.2f %.2f\n", |
2941 | commands[i].prog, ut, st); | |
bdde878c AO |
2942 | |
2943 | if (report_times_to_file) | |
2944 | { | |
2945 | int c = 0; | |
2946 | const char *const *j; | |
2947 | ||
2948 | fprintf (report_times_to_file, "%g %g", ut, st); | |
2949 | ||
2950 | for (j = &commands[i].prog; *j; j = &commands[i].argv[++c]) | |
2951 | { | |
2952 | const char *p; | |
2953 | for (p = *j; *p; ++p) | |
2954 | if (*p == '"' || *p == '\\' || *p == '$' | |
2955 | || ISSPACE (*p)) | |
2956 | break; | |
2957 | ||
2958 | if (*p) | |
2959 | { | |
2960 | fprintf (report_times_to_file, " \""); | |
2961 | for (p = *j; *p; ++p) | |
2962 | { | |
2963 | if (*p == '"' || *p == '\\' || *p == '$') | |
2964 | fputc ('\\', report_times_to_file); | |
2965 | fputc (*p, report_times_to_file); | |
2966 | } | |
2967 | fputc ('"', report_times_to_file); | |
2968 | } | |
2969 | else | |
2970 | fprintf (report_times_to_file, " %s", *j); | |
2971 | } | |
2972 | ||
2973 | fputc ('\n', report_times_to_file); | |
2974 | } | |
2975 | } | |
054e88a8 | 2976 | } |
ed1f651b | 2977 | } |
054e88a8 | 2978 | |
dc10fd96 JJ |
2979 | if (commands[0].argv[0] != commands[0].prog) |
2980 | free (CONST_CAST (char *, commands[0].argv[0])); | |
2981 | ||
ed1f651b RS |
2982 | return ret_code; |
2983 | } | |
2984 | } | |
2985 | \f | |
2986 | /* Find all the switches given to us | |
2987 | and make a vector describing them. | |
2988 | The elements of the vector are strings, one per switch given. | |
2989 | If a switch uses following arguments, then the `part1' field | |
2990 | is the switch itself and the `args' field | |
2991 | is a null-terminated vector containing the following arguments. | |
3371362c L |
2992 | Bits in the `live_cond' field are: |
2993 | SWITCH_LIVE to indicate this switch is true in a conditional spec. | |
2994 | SWITCH_FALSE to indicate this switch is overridden by a later switch. | |
2995 | SWITCH_IGNORE to indicate this switch should be ignored (used in %<S). | |
94b90527 JJ |
2996 | SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored |
2997 | in all do_spec calls afterwards. Used for %<S from self specs. | |
ab87f8c8 | 2998 | The `validated' field is nonzero if any spec has looked at this switch; |
ed1f651b RS |
2999 | if it remains zero at the end of the run, it must be meaningless. */ |
3000 | ||
96f5b137 L |
3001 | #define SWITCH_LIVE (1 << 0) |
3002 | #define SWITCH_FALSE (1 << 1) | |
3003 | #define SWITCH_IGNORE (1 << 2) | |
3004 | #define SWITCH_IGNORE_PERMANENTLY (1 << 3) | |
3005 | #define SWITCH_KEEP_FOR_GCC (1 << 4) | |
8097c429 | 3006 | |
ed1f651b RS |
3007 | struct switchstr |
3008 | { | |
878f32c3 | 3009 | const char *part1; |
fbd40359 | 3010 | const char **args; |
3371362c | 3011 | unsigned int live_cond; |
d168aaee CB |
3012 | bool known; |
3013 | bool validated; | |
3014 | bool ordering; | |
ed1f651b RS |
3015 | }; |
3016 | ||
3017 | static struct switchstr *switches; | |
3018 | ||
3019 | static int n_switches; | |
3020 | ||
922e1882 JM |
3021 | static int n_switches_alloc; |
3022 | ||
2153915d AO |
3023 | /* Set to zero if -fcompare-debug is disabled, positive if it's |
3024 | enabled and we're running the first compilation, negative if it's | |
3025 | enabled and we're running the second compilation. For most of the | |
3026 | time, it's in the range -1..1, but it can be temporarily set to 2 | |
3027 | or 3 to indicate that the -fcompare-debug flags didn't come from | |
3028 | the command-line, but rather from the GCC_COMPARE_DEBUG environment | |
3029 | variable, until a synthesized -fcompare-debug flag is added to the | |
3030 | command line. */ | |
3031 | int compare_debug; | |
3032 | ||
3033 | /* Set to nonzero if we've seen the -fcompare-debug-second flag. */ | |
3034 | int compare_debug_second; | |
3035 | ||
3036 | /* Set to the flags that should be passed to the second compilation in | |
3037 | a -fcompare-debug compilation. */ | |
3038 | const char *compare_debug_opt; | |
3039 | ||
3040 | static struct switchstr *switches_debug_check[2]; | |
3041 | ||
3042 | static int n_switches_debug_check[2]; | |
3043 | ||
efe5e5a0 JM |
3044 | static int n_switches_alloc_debug_check[2]; |
3045 | ||
2153915d AO |
3046 | static char *debug_check_temp_file[2]; |
3047 | ||
817a8255 EC |
3048 | /* Language is one of three things: |
3049 | ||
3050 | 1) The name of a real programming language. | |
3051 | 2) NULL, indicating that no one has figured out | |
3052 | what it is yet. | |
3053 | 3) '*', indicating that the file should be passed | |
3054 | to the linker. */ | |
ed1f651b RS |
3055 | struct infile |
3056 | { | |
878f32c3 KG |
3057 | const char *name; |
3058 | const char *language; | |
0855eab7 CT |
3059 | struct compiler *incompiler; |
3060 | bool compiled; | |
3061 | bool preprocessed; | |
ed1f651b RS |
3062 | }; |
3063 | ||
3064 | /* Also a vector of input files specified. */ | |
3065 | ||
3066 | static struct infile *infiles; | |
3067 | ||
3a5a9edc | 3068 | int n_infiles; |
ed1f651b | 3069 | |
922e1882 JM |
3070 | static int n_infiles_alloc; |
3071 | ||
d1bd0ded GK |
3072 | /* True if multiple input files are being compiled to a single |
3073 | assembly file. */ | |
3074 | ||
3075 | static bool combine_inputs; | |
3076 | ||
08dc830e | 3077 | /* This counts the number of libraries added by lang_specific_driver, so that |
a2a05b0a JW |
3078 | we can tell if there were any user supplied any files or libraries. */ |
3079 | ||
3080 | static int added_libraries; | |
3081 | ||
ed1f651b RS |
3082 | /* And a vector of corresponding output files is made up later. */ |
3083 | ||
3a5a9edc | 3084 | const char **outfiles; |
853e0b2d | 3085 | \f |
45936a85 | 3086 | #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX) |
853e0b2d RK |
3087 | |
3088 | /* Convert NAME to a new name if it is the standard suffix. DO_EXE | |
a9657ce8 DR |
3089 | is true if we should look for an executable suffix. DO_OBJ |
3090 | is true if we should look for an object suffix. */ | |
853e0b2d | 3091 | |
40cdfca6 | 3092 | static const char * |
1d088dee AJ |
3093 | convert_filename (const char *name, int do_exe ATTRIBUTE_UNUSED, |
3094 | int do_obj ATTRIBUTE_UNUSED) | |
853e0b2d | 3095 | { |
40cdfca6 | 3096 | #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) |
853e0b2d | 3097 | int i; |
40cdfca6 | 3098 | #endif |
87e690e2 MK |
3099 | int len; |
3100 | ||
3101 | if (name == NULL) | |
3102 | return NULL; | |
9218435e | 3103 | |
87e690e2 | 3104 | len = strlen (name); |
853e0b2d | 3105 | |
45936a85 DD |
3106 | #ifdef HAVE_TARGET_OBJECT_SUFFIX |
3107 | /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */ | |
a9657ce8 | 3108 | if (do_obj && len > 2 |
853e0b2d RK |
3109 | && name[len - 2] == '.' |
3110 | && name[len - 1] == 'o') | |
3111 | { | |
bdc5ed93 | 3112 | obstack_grow (&obstack, name, len - 2); |
45936a85 | 3113 | obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX)); |
7973fd2a | 3114 | name = XOBFINISH (&obstack, const char *); |
853e0b2d RK |
3115 | } |
3116 | #endif | |
3117 | ||
45936a85 | 3118 | #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) |
853e0b2d RK |
3119 | /* If there is no filetype, make it the executable suffix (which includes |
3120 | the "."). But don't get confused if we have just "-o". */ | |
45936a85 | 3121 | if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-')) |
853e0b2d RK |
3122 | return name; |
3123 | ||
e0040a8e | 3124 | for (i = len - 1; i >= 0; i--) |
509781a4 | 3125 | if (IS_DIR_SEPARATOR (name[i])) |
e0040a8e RK |
3126 | break; |
3127 | ||
3128 | for (i++; i < len; i++) | |
853e0b2d RK |
3129 | if (name[i] == '.') |
3130 | return name; | |
3131 | ||
3132 | obstack_grow (&obstack, name, len); | |
5d9669fd RK |
3133 | obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX, |
3134 | strlen (TARGET_EXECUTABLE_SUFFIX)); | |
7973fd2a | 3135 | name = XOBFINISH (&obstack, const char *); |
853e0b2d RK |
3136 | #endif |
3137 | ||
3138 | return name; | |
3139 | } | |
3140 | #endif | |
b8468bc7 NC |
3141 | \f |
3142 | /* Display the command line switches accepted by gcc. */ | |
3143 | static void | |
1d088dee | 3144 | display_help (void) |
b8468bc7 | 3145 | { |
6afbc885 | 3146 | printf (_("Usage: %s [options] file...\n"), progname); |
5e4adfba | 3147 | fputs (_("Options:\n"), stdout); |
b8468bc7 | 3148 | |
5e4adfba PT |
3149 | fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout); |
3150 | fputs (_(" --help Display this information\n"), stdout); | |
91606ce2 | 3151 | fputs (_(" --target-help Display target specific command line options\n"), stdout); |
cdbfc61d | 3152 | fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...]\n"), stdout); |
c662432e | 3153 | fputs (_(" Display specific types of command line options\n"), stdout); |
b8468bc7 | 3154 | if (! verbose_flag) |
5e4adfba | 3155 | fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout); |
1156c176 | 3156 | fputs (_(" --version Display compiler version information\n"), stdout); |
5e4adfba PT |
3157 | fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout); |
3158 | fputs (_(" -dumpversion Display the version of the compiler\n"), stdout); | |
3159 | fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout); | |
3160 | fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout); | |
3161 | fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout); | |
3162 | fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout); | |
3163 | fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout); | |
e0cdc09f MK |
3164 | fputs (_("\ |
3165 | -print-multiarch Display the target's normalized GNU triplet, used as\n\ | |
3166 | a component in the library path\n"), stdout); | |
5e4adfba PT |
3167 | fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout); |
3168 | fputs (_("\ | |
3169 | -print-multi-lib Display the mapping between command line options and\n\ | |
3170 | multiple library search directories\n"), stdout); | |
5bbcd587 | 3171 | fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout); |
3def1397 | 3172 | fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout); |
14da6073 | 3173 | fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout); |
5e4adfba PT |
3174 | fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout); |
3175 | fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout); | |
3176 | fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout); | |
4977bab6 ZW |
3177 | fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout); |
3178 | fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout); | |
5e4adfba PT |
3179 | fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout); |
3180 | fputs (_(" -save-temps Do not delete intermediate files\n"), stdout); | |
14fdc613 | 3181 | fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout); |
ba0c638e SB |
3182 | fputs (_("\ |
3183 | -no-canonical-prefixes Do not canonicalize paths when building relative\n\ | |
3184 | prefixes to other gcc components\n"), stdout); | |
5e4adfba PT |
3185 | fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout); |
3186 | fputs (_(" -time Time the execution of each subprocess\n"), stdout); | |
b0287a90 | 3187 | fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout); |
5e4adfba | 3188 | fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout); |
160633c6 MM |
3189 | fputs (_("\ |
3190 | --sysroot=<directory> Use <directory> as the root directory for headers\n\ | |
b3cccd58 | 3191 | and libraries\n"), stdout); |
5e4adfba | 3192 | fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout); |
5e4adfba | 3193 | fputs (_(" -v Display the programs invoked by the compiler\n"), stdout); |
99f78cdd | 3194 | fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout); |
5e4adfba PT |
3195 | fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout); |
3196 | fputs (_(" -S Compile only; do not assemble or link\n"), stdout); | |
3197 | fputs (_(" -c Compile and assemble, but do not link\n"), stdout); | |
3198 | fputs (_(" -o <file> Place the output into <file>\n"), stdout); | |
5460e1fc JJ |
3199 | fputs (_(" -pie Create a position independent executable\n"), stdout); |
3200 | fputs (_(" -shared Create a shared library\n"), stdout); | |
5e4adfba PT |
3201 | fputs (_("\ |
3202 | -x <language> Specify the language of the following input files\n\ | |
8e854b76 | 3203 | Permissible languages include: c c++ assembler none\n\ |
1737c953 | 3204 | 'none' means revert to the default behavior of\n\ |
5e4adfba PT |
3205 | guessing the language based on the file's extension\n\ |
3206 | "), stdout); | |
3207 | ||
0c386769 | 3208 | printf (_("\ |
d991c721 BK |
3209 | \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\ |
3210 | passed on to the various sub-processes invoked by %s. In order to pass\n\ | |
3211 | other options on to these processes the -W<letter> options must be used.\n\ | |
6afbc885 | 3212 | "), progname); |
b8468bc7 NC |
3213 | |
3214 | /* The rest of the options are displayed by invocations of the various | |
3215 | sub-processes. */ | |
3216 | } | |
3217 | ||
9218435e | 3218 | static void |
1d088dee | 3219 | add_preprocessor_option (const char *option, int len) |
9218435e | 3220 | { |
9771b263 | 3221 | preprocessor_options.safe_push (save_string (option, len)); |
40f943dd | 3222 | } |
9218435e KH |
3223 | |
3224 | static void | |
1d088dee | 3225 | add_assembler_option (const char *option, int len) |
878f32c3 | 3226 | { |
9771b263 | 3227 | assembler_options.safe_push (save_string (option, len)); |
b8468bc7 | 3228 | } |
9218435e KH |
3229 | |
3230 | static void | |
1d088dee | 3231 | add_linker_option (const char *option, int len) |
878f32c3 | 3232 | { |
9771b263 | 3233 | linker_options.safe_push (save_string (option, len)); |
40f943dd | 3234 | } |
853e0b2d | 3235 | \f |
922e1882 JM |
3236 | /* Allocate space for an input file in infiles. */ |
3237 | ||
3238 | static void | |
3239 | alloc_infile (void) | |
3240 | { | |
3241 | if (n_infiles_alloc == 0) | |
3242 | { | |
3243 | n_infiles_alloc = 16; | |
3244 | infiles = XNEWVEC (struct infile, n_infiles_alloc); | |
3245 | } | |
3246 | else if (n_infiles_alloc == n_infiles) | |
3247 | { | |
3248 | n_infiles_alloc *= 2; | |
3249 | infiles = XRESIZEVEC (struct infile, infiles, n_infiles_alloc); | |
3250 | } | |
3251 | } | |
3252 | ||
3253 | /* Store an input file with the given NAME and LANGUAGE in | |
3254 | infiles. */ | |
3255 | ||
3256 | static void | |
3257 | add_infile (const char *name, const char *language) | |
3258 | { | |
3259 | alloc_infile (); | |
3260 | infiles[n_infiles].name = name; | |
3261 | infiles[n_infiles++].language = language; | |
3262 | } | |
3263 | ||
3264 | /* Allocate space for a switch in switches. */ | |
3265 | ||
3266 | static void | |
3267 | alloc_switch (void) | |
3268 | { | |
3269 | if (n_switches_alloc == 0) | |
3270 | { | |
3271 | n_switches_alloc = 16; | |
3272 | switches = XNEWVEC (struct switchstr, n_switches_alloc); | |
3273 | } | |
3274 | else if (n_switches_alloc == n_switches) | |
3275 | { | |
3276 | n_switches_alloc *= 2; | |
3277 | switches = XRESIZEVEC (struct switchstr, switches, n_switches_alloc); | |
3278 | } | |
3279 | } | |
3280 | ||
603349bf | 3281 | /* Save an option OPT with N_ARGS arguments in array ARGS, marking it |
d168aaee | 3282 | as validated if VALIDATED and KNOWN if it is an internal switch. */ |
603349bf JM |
3283 | |
3284 | static void | |
3285 | save_switch (const char *opt, size_t n_args, const char *const *args, | |
d168aaee | 3286 | bool validated, bool known) |
603349bf JM |
3287 | { |
3288 | alloc_switch (); | |
3289 | switches[n_switches].part1 = opt + 1; | |
3290 | if (n_args == 0) | |
3291 | switches[n_switches].args = 0; | |
3292 | else | |
3293 | { | |
3294 | switches[n_switches].args = XNEWVEC (const char *, n_args + 1); | |
3295 | memcpy (switches[n_switches].args, args, n_args * sizeof (const char *)); | |
3296 | switches[n_switches].args[n_args] = NULL; | |
3297 | } | |
3298 | ||
3299 | switches[n_switches].live_cond = 0; | |
3300 | switches[n_switches].validated = validated; | |
d168aaee | 3301 | switches[n_switches].known = known; |
603349bf JM |
3302 | switches[n_switches].ordering = 0; |
3303 | n_switches++; | |
3304 | } | |
3305 | ||
3306 | /* Handle an option DECODED that is unknown to the option-processing | |
66017846 | 3307 | machinery. */ |
603349bf JM |
3308 | |
3309 | static bool | |
3310 | driver_unknown_option_callback (const struct cl_decoded_option *decoded) | |
3311 | { | |
66017846 JM |
3312 | const char *opt = decoded->arg; |
3313 | if (opt[1] == 'W' && opt[2] == 'n' && opt[3] == 'o' && opt[4] == '-' | |
3314 | && !(decoded->errors & CL_ERR_NEGATIVE)) | |
3315 | { | |
3316 | /* Leave unknown -Wno-* options for the compiler proper, to be | |
3317 | diagnosed only if there are warnings. */ | |
3318 | save_switch (decoded->canonical_option[0], | |
3319 | decoded->canonical_option_num_elements - 1, | |
d168aaee CB |
3320 | &decoded->canonical_option[1], false, true); |
3321 | return false; | |
3322 | } | |
3323 | if (decoded->opt_index == OPT_SPECIAL_unknown) | |
3324 | { | |
3325 | /* Give it a chance to define it a a spec file. */ | |
3326 | save_switch (decoded->canonical_option[0], | |
3327 | decoded->canonical_option_num_elements - 1, | |
3328 | &decoded->canonical_option[1], false, false); | |
66017846 JM |
3329 | return false; |
3330 | } | |
3331 | else | |
3332 | return true; | |
603349bf JM |
3333 | } |
3334 | ||
3335 | /* Handle an option DECODED that is not marked as CL_DRIVER. | |
3336 | LANG_MASK will always be CL_DRIVER. */ | |
3337 | ||
3338 | static void | |
3339 | driver_wrong_lang_callback (const struct cl_decoded_option *decoded, | |
3340 | unsigned int lang_mask ATTRIBUTE_UNUSED) | |
3341 | { | |
3342 | /* At this point, non-driver options are accepted (and expected to | |
3343 | be passed down by specs) unless marked to be rejected by the | |
3344 | driver. Options to be rejected by the driver but accepted by the | |
3345 | compilers proper are treated just like completely unknown | |
3346 | options. */ | |
3347 | const struct cl_option *option = &cl_options[decoded->opt_index]; | |
3348 | ||
300d83d9 | 3349 | if (option->cl_reject_driver) |
603349bf JM |
3350 | error ("unrecognized command line option %qs", |
3351 | decoded->orig_option_with_args_text); | |
3352 | else | |
66017846 JM |
3353 | save_switch (decoded->canonical_option[0], |
3354 | decoded->canonical_option_num_elements - 1, | |
d168aaee | 3355 | &decoded->canonical_option[1], false, true); |
603349bf JM |
3356 | } |
3357 | ||
603349bf JM |
3358 | static const char *spec_lang = 0; |
3359 | static int last_language_n_infiles; | |
3360 | ||
3361 | /* Handle a driver option; arguments and return value as for | |
3362 | handle_option. */ | |
3363 | ||
3364 | static bool | |
46625112 | 3365 | driver_handle_option (struct gcc_options *opts, |
d4d24ba4 | 3366 | struct gcc_options *opts_set, |
46625112 | 3367 | const struct cl_decoded_option *decoded, |
603349bf | 3368 | unsigned int lang_mask ATTRIBUTE_UNUSED, int kind, |
a4d8c676 | 3369 | location_t loc, |
d5478783 JM |
3370 | const struct cl_option_handlers *handlers ATTRIBUTE_UNUSED, |
3371 | diagnostic_context *dc) | |
603349bf JM |
3372 | { |
3373 | size_t opt_index = decoded->opt_index; | |
3374 | const char *arg = decoded->arg; | |
3375 | const char *compare_debug_replacement_opt; | |
3376 | int value = decoded->value; | |
3377 | bool validated = false; | |
3378 | bool do_save = true; | |
3379 | ||
46625112 | 3380 | gcc_assert (opts == &global_options); |
d4d24ba4 | 3381 | gcc_assert (opts_set == &global_options_set); |
603349bf | 3382 | gcc_assert (kind == DK_UNSPECIFIED); |
a4d8c676 | 3383 | gcc_assert (loc == UNKNOWN_LOCATION); |
d5478783 | 3384 | gcc_assert (dc == global_dc); |
603349bf JM |
3385 | |
3386 | switch (opt_index) | |
3387 | { | |
3388 | case OPT_dumpspecs: | |
3389 | { | |
3390 | struct spec_list *sl; | |
3391 | init_spec (); | |
3392 | for (sl = specs; sl; sl = sl->next) | |
3393 | printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec)); | |
3394 | if (link_command_spec) | |
3395 | printf ("*link_command:\n%s\n\n", link_command_spec); | |
3396 | exit (0); | |
3397 | } | |
3398 | ||
3399 | case OPT_dumpversion: | |
3400 | printf ("%s\n", spec_version); | |
3401 | exit (0); | |
3402 | ||
3403 | case OPT_dumpmachine: | |
3404 | printf ("%s\n", spec_machine); | |
3405 | exit (0); | |
3406 | ||
e200444e | 3407 | case OPT__version: |
603349bf JM |
3408 | print_version = 1; |
3409 | ||
3410 | /* CPP driver cannot obtain switch from cc1_options. */ | |
3411 | if (is_cpp_driver) | |
3412 | add_preprocessor_option ("--version", strlen ("--version")); | |
3413 | add_assembler_option ("--version", strlen ("--version")); | |
3414 | add_linker_option ("--version", strlen ("--version")); | |
3415 | break; | |
3416 | ||
e200444e | 3417 | case OPT__help: |
603349bf JM |
3418 | print_help_list = 1; |
3419 | ||
3420 | /* CPP driver cannot obtain switch from cc1_options. */ | |
3421 | if (is_cpp_driver) | |
3422 | add_preprocessor_option ("--help", 6); | |
3423 | add_assembler_option ("--help", 6); | |
3424 | add_linker_option ("--help", 6); | |
3425 | break; | |
3426 | ||
e200444e | 3427 | case OPT__help_: |
603349bf JM |
3428 | print_subprocess_help = 2; |
3429 | break; | |
3430 | ||
e200444e | 3431 | case OPT__target_help: |
603349bf JM |
3432 | print_subprocess_help = 1; |
3433 | ||
3434 | /* CPP driver cannot obtain switch from cc1_options. */ | |
3435 | if (is_cpp_driver) | |
3436 | add_preprocessor_option ("--target-help", 13); | |
3437 | add_assembler_option ("--target-help", 13); | |
3438 | add_linker_option ("--target-help", 13); | |
3439 | break; | |
3440 | ||
28b4fc51 | 3441 | case OPT__no_sysroot_suffix: |
603349bf JM |
3442 | case OPT_pass_exit_codes: |
3443 | case OPT_print_search_dirs: | |
3444 | case OPT_print_file_name_: | |
3445 | case OPT_print_prog_name_: | |
3446 | case OPT_print_multi_lib: | |
3447 | case OPT_print_multi_directory: | |
3448 | case OPT_print_sysroot: | |
3449 | case OPT_print_multi_os_directory: | |
e0cdc09f | 3450 | case OPT_print_multiarch: |
603349bf JM |
3451 | case OPT_print_sysroot_headers_suffix: |
3452 | case OPT_time: | |
3453 | case OPT_wrapper: | |
3454 | /* These options set the variables specified in common.opt | |
3455 | automatically, and do not need to be saved for spec | |
3456 | processing. */ | |
3457 | do_save = false; | |
3458 | break; | |
3459 | ||
3460 | case OPT_print_libgcc_file_name: | |
3461 | print_file_name = "libgcc.a"; | |
3462 | do_save = false; | |
3463 | break; | |
3464 | ||
b78e932d L |
3465 | case OPT_fuse_ld_bfd: |
3466 | use_ld = ".bfd"; | |
3467 | break; | |
3468 | ||
3469 | case OPT_fuse_ld_gold: | |
3470 | use_ld = ".gold"; | |
3471 | break; | |
3472 | ||
603349bf JM |
3473 | case OPT_fcompare_debug_second: |
3474 | compare_debug_second = 1; | |
3475 | break; | |
3476 | ||
3477 | case OPT_fcompare_debug: | |
3478 | switch (value) | |
3479 | { | |
3480 | case 0: | |
3481 | compare_debug_replacement_opt = "-fcompare-debug="; | |
3482 | arg = ""; | |
3483 | goto compare_debug_with_arg; | |
3484 | ||
3485 | case 1: | |
3486 | compare_debug_replacement_opt = "-fcompare-debug=-gtoggle"; | |
3487 | arg = "-gtoggle"; | |
3488 | goto compare_debug_with_arg; | |
3489 | ||
3490 | default: | |
3491 | gcc_unreachable (); | |
3492 | } | |
3493 | break; | |
3494 | ||
3495 | case OPT_fcompare_debug_: | |
3496 | compare_debug_replacement_opt = decoded->canonical_option[0]; | |
3497 | compare_debug_with_arg: | |
3498 | gcc_assert (decoded->canonical_option_num_elements == 1); | |
3499 | gcc_assert (arg != NULL); | |
28c14a04 | 3500 | if (*arg) |
603349bf JM |
3501 | compare_debug = 1; |
3502 | else | |
3503 | compare_debug = -1; | |
3504 | if (compare_debug < 0) | |
3505 | compare_debug_opt = NULL; | |
3506 | else | |
3507 | compare_debug_opt = arg; | |
d168aaee | 3508 | save_switch (compare_debug_replacement_opt, 0, NULL, validated, true); |
603349bf JM |
3509 | return true; |
3510 | ||
3511 | case OPT_Wa_: | |
3512 | { | |
3513 | int prev, j; | |
3514 | /* Pass the rest of this option to the assembler. */ | |
3515 | ||
3516 | /* Split the argument at commas. */ | |
3517 | prev = 0; | |
3518 | for (j = 0; arg[j]; j++) | |
3519 | if (arg[j] == ',') | |
3520 | { | |
3521 | add_assembler_option (arg + prev, j - prev); | |
3522 | prev = j + 1; | |
3523 | } | |
3524 | ||
3525 | /* Record the part after the last comma. */ | |
3526 | add_assembler_option (arg + prev, j - prev); | |
3527 | } | |
3528 | do_save = false; | |
3529 | break; | |
3530 | ||
3531 | case OPT_Wp_: | |
3532 | { | |
3533 | int prev, j; | |
3534 | /* Pass the rest of this option to the preprocessor. */ | |
3535 | ||
3536 | /* Split the argument at commas. */ | |
3537 | prev = 0; | |
3538 | for (j = 0; arg[j]; j++) | |
3539 | if (arg[j] == ',') | |
3540 | { | |
3541 | add_preprocessor_option (arg + prev, j - prev); | |
3542 | prev = j + 1; | |
3543 | } | |
3544 | ||
3545 | /* Record the part after the last comma. */ | |
3546 | add_preprocessor_option (arg + prev, j - prev); | |
3547 | } | |
3548 | do_save = false; | |
3549 | break; | |
3550 | ||
3551 | case OPT_Wl_: | |
3552 | { | |
3553 | int prev, j; | |
3554 | /* Split the argument at commas. */ | |
3555 | prev = 0; | |
3556 | for (j = 0; arg[j]; j++) | |
3557 | if (arg[j] == ',') | |
3558 | { | |
3559 | add_infile (save_string (arg + prev, j - prev), "*"); | |
3560 | prev = j + 1; | |
3561 | } | |
3562 | /* Record the part after the last comma. */ | |
3563 | add_infile (arg + prev, "*"); | |
3564 | } | |
3565 | do_save = false; | |
3566 | break; | |
3567 | ||
3568 | case OPT_Xlinker: | |
3569 | add_infile (arg, "*"); | |
3570 | do_save = false; | |
3571 | break; | |
3572 | ||
3573 | case OPT_Xpreprocessor: | |
3574 | add_preprocessor_option (arg, strlen (arg)); | |
3575 | do_save = false; | |
3576 | break; | |
3577 | ||
3578 | case OPT_Xassembler: | |
3579 | add_assembler_option (arg, strlen (arg)); | |
3580 | do_save = false; | |
3581 | break; | |
3582 | ||
3583 | case OPT_l: | |
3584 | /* POSIX allows separation of -l and the lib arg; canonicalize | |
3585 | by concatenating -l with its arg */ | |
3586 | add_infile (concat ("-l", arg, NULL), "*"); | |
3587 | do_save = false; | |
3588 | break; | |
3589 | ||
5de8299c JM |
3590 | case OPT_L: |
3591 | /* Similarly, canonicalize -L for linkers that may not accept | |
3592 | separate arguments. */ | |
d168aaee | 3593 | save_switch (concat ("-L", arg, NULL), 0, NULL, validated, true); |
5de8299c JM |
3594 | return true; |
3595 | ||
a350a6c8 IS |
3596 | case OPT_F: |
3597 | /* Likewise -F. */ | |
d168aaee | 3598 | save_switch (concat ("-F", arg, NULL), 0, NULL, validated, true); |
a350a6c8 IS |
3599 | return true; |
3600 | ||
603349bf JM |
3601 | case OPT_save_temps: |
3602 | save_temps_flag = SAVE_TEMPS_CWD; | |
3603 | validated = true; | |
3604 | break; | |
3605 | ||
3606 | case OPT_save_temps_: | |
3607 | if (strcmp (arg, "cwd") == 0) | |
3608 | save_temps_flag = SAVE_TEMPS_CWD; | |
3609 | else if (strcmp (arg, "obj") == 0 | |
3610 | || strcmp (arg, "object") == 0) | |
3611 | save_temps_flag = SAVE_TEMPS_OBJ; | |
3612 | else | |
3613 | fatal_error ("%qs is an unknown -save-temps option", | |
3614 | decoded->orig_option_with_args_text); | |
3615 | break; | |
3616 | ||
3617 | case OPT_no_canonical_prefixes: | |
3618 | /* Already handled as a special case, so ignored here. */ | |
3619 | do_save = false; | |
3620 | break; | |
3621 | ||
3622 | case OPT_pipe: | |
3623 | validated = true; | |
603349bf JM |
3624 | /* These options set the variables specified in common.opt |
3625 | automatically, but do need to be saved for spec | |
3626 | processing. */ | |
3627 | break; | |
3628 | ||
603349bf JM |
3629 | case OPT_specs_: |
3630 | { | |
3631 | struct user_specs *user = XNEW (struct user_specs); | |
3632 | ||
3633 | user->next = (struct user_specs *) 0; | |
3634 | user->filename = arg; | |
3635 | if (user_specs_tail) | |
3636 | user_specs_tail->next = user; | |
3637 | else | |
3638 | user_specs_head = user; | |
3639 | user_specs_tail = user; | |
3640 | } | |
d168aaee | 3641 | validated = true; |
603349bf JM |
3642 | break; |
3643 | ||
3644 | case OPT__sysroot_: | |
3645 | target_system_root = arg; | |
3646 | target_system_root_changed = 1; | |
3647 | do_save = false; | |
3648 | break; | |
3649 | ||
3650 | case OPT_time_: | |
3651 | if (report_times_to_file) | |
3652 | fclose (report_times_to_file); | |
3653 | report_times_to_file = fopen (arg, "a"); | |
3654 | do_save = false; | |
3655 | break; | |
3656 | ||
3657 | case OPT____: | |
3658 | /* "-###" | |
3659 | This is similar to -v except that there is no execution | |
3660 | of the commands and the echoed arguments are quoted. It | |
3661 | is intended for use in shell scripts to capture the | |
3662 | driver-generated command line. */ | |
3663 | verbose_only_flag++; | |
d5478783 | 3664 | verbose_flag = 1; |
603349bf JM |
3665 | do_save = false; |
3666 | break; | |
3667 | ||
3668 | case OPT_B: | |
3669 | { | |
3670 | size_t len = strlen (arg); | |
3671 | ||
3672 | /* Catch the case where the user has forgotten to append a | |
3673 | directory separator to the path. Note, they may be using | |
3674 | -B to add an executable name prefix, eg "i386-elf-", in | |
3675 | order to distinguish between multiple installations of | |
3676 | GCC in the same directory. Hence we must check to see | |
3677 | if appending a directory separator actually makes a | |
3678 | valid directory name. */ | |
3679 | if (!IS_DIR_SEPARATOR (arg[len - 1]) | |
3680 | && is_directory (arg, false)) | |
3681 | { | |
3682 | char *tmp = XNEWVEC (char, len + 2); | |
3683 | strcpy (tmp, arg); | |
3684 | tmp[len] = DIR_SEPARATOR; | |
3685 | tmp[++len] = 0; | |
3686 | arg = tmp; | |
3687 | } | |
3688 | ||
3689 | add_prefix (&exec_prefixes, arg, NULL, | |
3690 | PREFIX_PRIORITY_B_OPT, 0, 0); | |
3691 | add_prefix (&startfile_prefixes, arg, NULL, | |
3692 | PREFIX_PRIORITY_B_OPT, 0, 0); | |
3693 | add_prefix (&include_prefixes, arg, NULL, | |
3694 | PREFIX_PRIORITY_B_OPT, 0, 0); | |
3695 | } | |
3696 | validated = true; | |
3697 | break; | |
3698 | ||
603349bf JM |
3699 | case OPT_x: |
3700 | spec_lang = arg; | |
3701 | if (!strcmp (spec_lang, "none")) | |
3702 | /* Suppress the warning if -xnone comes after the last input | |
3703 | file, because alternate command interfaces like g++ might | |
3704 | find it useful to place -xnone after each input file. */ | |
3705 | spec_lang = 0; | |
3706 | else | |
3707 | last_language_n_infiles = n_infiles; | |
3708 | do_save = false; | |
3709 | break; | |
3710 | ||
603349bf JM |
3711 | case OPT_o: |
3712 | have_o = 1; | |
3713 | #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX) | |
3714 | arg = convert_filename (arg, ! have_c, 0); | |
3715 | #endif | |
3716 | /* Save the output name in case -save-temps=obj was used. */ | |
3717 | save_temps_prefix = xstrdup (arg); | |
3718 | /* On some systems, ld cannot handle "-o" without a space. So | |
3719 | split the option from its argument. */ | |
d168aaee | 3720 | save_switch ("-o", 1, &arg, validated, true); |
603349bf JM |
3721 | return true; |
3722 | ||
3723 | case OPT_static_libgcc: | |
3724 | case OPT_shared_libgcc: | |
3725 | case OPT_static_libgfortran: | |
3726 | case OPT_static_libstdc__: | |
3727 | /* These are always valid, since gcc.c itself understands the | |
3728 | first two, gfortranspec.c understands -static-libgfortran and | |
3729 | g++spec.c understands -static-libstdc++ */ | |
3730 | validated = true; | |
3731 | break; | |
3732 | ||
f300e7b8 JH |
3733 | case OPT_fwpa: |
3734 | flag_wpa = ""; | |
3735 | break; | |
3736 | ||
603349bf | 3737 | default: |
d9d16a19 JM |
3738 | /* Various driver options need no special processing at this |
3739 | point, having been handled in a prescan above or being | |
3740 | handled by specs. */ | |
3741 | break; | |
603349bf JM |
3742 | } |
3743 | ||
3744 | if (do_save) | |
3745 | save_switch (decoded->canonical_option[0], | |
3746 | decoded->canonical_option_num_elements - 1, | |
d168aaee | 3747 | &decoded->canonical_option[1], validated, true); |
603349bf JM |
3748 | return true; |
3749 | } | |
3750 | ||
efe5e5a0 JM |
3751 | /* Put the driver's standard set of option handlers in *HANDLERS. */ |
3752 | ||
3753 | static void | |
3754 | set_option_handlers (struct cl_option_handlers *handlers) | |
3755 | { | |
3756 | handlers->unknown_option_callback = driver_unknown_option_callback; | |
3757 | handlers->wrong_lang_callback = driver_wrong_lang_callback; | |
a7d0d30f | 3758 | handlers->num_handlers = 3; |
efe5e5a0 JM |
3759 | handlers->handlers[0].handler = driver_handle_option; |
3760 | handlers->handlers[0].mask = CL_DRIVER; | |
a7d0d30f JM |
3761 | handlers->handlers[1].handler = common_handle_option; |
3762 | handlers->handlers[1].mask = CL_COMMON; | |
3763 | handlers->handlers[2].handler = target_handle_option; | |
3764 | handlers->handlers[2].mask = CL_TARGET; | |
efe5e5a0 JM |
3765 | } |
3766 | ||
ed1f651b RS |
3767 | /* Create the vector `switches' and its contents. |
3768 | Store its length in `n_switches'. */ | |
3769 | ||
3770 | static void | |
60cf253a JM |
3771 | process_command (unsigned int decoded_options_count, |
3772 | struct cl_decoded_option *decoded_options) | |
ed1f651b | 3773 | { |
878f32c3 KG |
3774 | const char *temp; |
3775 | char *temp1; | |
fc429b48 | 3776 | char *tooldir_prefix, *tooldir_prefix2; |
ba0c638e SB |
3777 | char *(*get_relative_prefix) (const char *, const char *, |
3778 | const char *) = NULL; | |
603349bf | 3779 | struct cl_option_handlers handlers; |
60cf253a | 3780 | unsigned int j; |
ed1f651b | 3781 | |
71f3e391 | 3782 | gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX"); |
8eebb258 | 3783 | |
ed1f651b RS |
3784 | n_switches = 0; |
3785 | n_infiles = 0; | |
a2a05b0a | 3786 | added_libraries = 0; |
2484b6d2 | 3787 | |
53117a2f RK |
3788 | /* Figure compiler version from version string. */ |
3789 | ||
9218435e | 3790 | compiler_version = temp1 = xstrdup (version_string); |
ad85216e | 3791 | |
878f32c3 | 3792 | for (; *temp1; ++temp1) |
53117a2f | 3793 | { |
878f32c3 | 3794 | if (*temp1 == ' ') |
53117a2f | 3795 | { |
878f32c3 | 3796 | *temp1 = '\0'; |
53117a2f RK |
3797 | break; |
3798 | } | |
3799 | } | |
ed1f651b | 3800 | |
ba0c638e SB |
3801 | /* Handle any -no-canonical-prefixes flag early, to assign the function |
3802 | that builds relative prefixes. This function creates default search | |
3803 | paths that are needed later in normal option handling. */ | |
3804 | ||
e200444e | 3805 | for (j = 1; j < decoded_options_count; j++) |
ba0c638e | 3806 | { |
e200444e | 3807 | if (decoded_options[j].opt_index == OPT_no_canonical_prefixes) |
ba0c638e SB |
3808 | { |
3809 | get_relative_prefix = make_relative_prefix_ignore_links; | |
3810 | break; | |
3811 | } | |
3812 | } | |
3813 | if (! get_relative_prefix) | |
3814 | get_relative_prefix = make_relative_prefix; | |
3815 | ||
0deb20df | 3816 | /* Set up the default search paths. If there is no GCC_EXEC_PREFIX, |
60cf253a JM |
3817 | see if we can create it from the pathname specified in |
3818 | decoded_options[0].arg. */ | |
0deb20df | 3819 | |
a8ee6e2d | 3820 | gcc_libexec_prefix = standard_libexec_prefix; |
0deb20df TT |
3821 | #ifndef VMS |
3822 | /* FIXME: make_relative_prefix doesn't yet work for VMS. */ | |
3823 | if (!gcc_exec_prefix) | |
3824 | { | |
60cf253a | 3825 | gcc_exec_prefix = get_relative_prefix (decoded_options[0].arg, |
ba0c638e SB |
3826 | standard_bindir_prefix, |
3827 | standard_exec_prefix); | |
60cf253a | 3828 | gcc_libexec_prefix = get_relative_prefix (decoded_options[0].arg, |
ba0c638e SB |
3829 | standard_bindir_prefix, |
3830 | standard_libexec_prefix); | |
0deb20df | 3831 | if (gcc_exec_prefix) |
47d33318 | 3832 | xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL)); |
0deb20df | 3833 | } |
a8ee6e2d | 3834 | else |
c7370b83 JM |
3835 | { |
3836 | /* make_relative_prefix requires a program name, but | |
3837 | GCC_EXEC_PREFIX is typically a directory name with a trailing | |
3838 | / (which is ignored by make_relative_prefix), so append a | |
3839 | program name. */ | |
3840 | char *tmp_prefix = concat (gcc_exec_prefix, "gcc", NULL); | |
ba0c638e SB |
3841 | gcc_libexec_prefix = get_relative_prefix (tmp_prefix, |
3842 | standard_exec_prefix, | |
3843 | standard_libexec_prefix); | |
f4c0a303 CD |
3844 | |
3845 | /* The path is unrelocated, so fallback to the original setting. */ | |
3846 | if (!gcc_libexec_prefix) | |
3847 | gcc_libexec_prefix = standard_libexec_prefix; | |
3848 | ||
c7370b83 JM |
3849 | free (tmp_prefix); |
3850 | } | |
a8ee6e2d | 3851 | #else |
0deb20df | 3852 | #endif |
f4c0a303 CD |
3853 | /* From this point onward, gcc_exec_prefix is non-null if the toolchain |
3854 | is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX | |
60cf253a JM |
3855 | or an automatically created GCC_EXEC_PREFIX from |
3856 | decoded_options[0].arg. */ | |
ed1f651b | 3857 | |
a288b143 | 3858 | /* Do language-specific adjustment/addition of flags. */ |
d9d16a19 | 3859 | lang_specific_driver (&decoded_options, &decoded_options_count, |
a288b143 AH |
3860 | &added_libraries); |
3861 | ||
8eebb258 | 3862 | if (gcc_exec_prefix) |
ed1f651b | 3863 | { |
6ed4bb9a | 3864 | int len = strlen (gcc_exec_prefix); |
c5c0b3d9 | 3865 | |
a8ee6e2d | 3866 | if (len > (int) sizeof ("/lib/gcc/") - 1 |
509781a4 | 3867 | && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1]))) |
6ed4bb9a | 3868 | { |
a8ee6e2d | 3869 | temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1; |
509781a4 | 3870 | if (IS_DIR_SEPARATOR (*temp) |
ba78087b | 3871 | && filename_ncmp (temp + 1, "lib", 3) == 0 |
509781a4 | 3872 | && IS_DIR_SEPARATOR (temp[4]) |
ba78087b | 3873 | && filename_ncmp (temp + 5, "gcc", 3) == 0) |
a8ee6e2d | 3874 | len -= sizeof ("/lib/gcc/") - 1; |
6ed4bb9a MM |
3875 | } |
3876 | ||
3877 | set_std_prefix (gcc_exec_prefix, len); | |
a8ee6e2d | 3878 | add_prefix (&exec_prefixes, gcc_libexec_prefix, "GCC", |
1a5d37a1 | 3879 | PREFIX_PRIORITY_LAST, 0, 0); |
922a4beb | 3880 | add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC", |
1a5d37a1 | 3881 | PREFIX_PRIORITY_LAST, 0, 0); |
ed1f651b RS |
3882 | } |
3883 | ||
3884 | /* COMPILER_PATH and LIBRARY_PATH have values | |
3885 | that are lists of directory names with colons. */ | |
3886 | ||
71f3e391 | 3887 | temp = getenv ("COMPILER_PATH"); |
ed1f651b RS |
3888 | if (temp) |
3889 | { | |
878f32c3 | 3890 | const char *startp, *endp; |
e1e4cdc4 | 3891 | char *nstore = (char *) alloca (strlen (temp) + 3); |
ed1f651b RS |
3892 | |
3893 | startp = endp = temp; | |
3894 | while (1) | |
3895 | { | |
f6ec7e54 | 3896 | if (*endp == PATH_SEPARATOR || *endp == 0) |
ed1f651b | 3897 | { |
d25a45d4 | 3898 | strncpy (nstore, startp, endp - startp); |
ed1f651b | 3899 | if (endp == startp) |
d4f2852f | 3900 | strcpy (nstore, concat (".", dir_separator_str, NULL)); |
509781a4 | 3901 | else if (!IS_DIR_SEPARATOR (endp[-1])) |
ed1f651b | 3902 | { |
d25a45d4 KH |
3903 | nstore[endp - startp] = DIR_SEPARATOR; |
3904 | nstore[endp - startp + 1] = 0; | |
ed1f651b RS |
3905 | } |
3906 | else | |
d25a45d4 | 3907 | nstore[endp - startp] = 0; |
922a4beb | 3908 | add_prefix (&exec_prefixes, nstore, 0, |
1a5d37a1 | 3909 | PREFIX_PRIORITY_LAST, 0, 0); |
76391e5a | 3910 | add_prefix (&include_prefixes, nstore, 0, |
1a5d37a1 | 3911 | PREFIX_PRIORITY_LAST, 0, 0); |
ed1f651b RS |
3912 | if (*endp == 0) |
3913 | break; | |
3914 | endp = startp = endp + 1; | |
3915 | } | |
3916 | else | |
3917 | endp++; | |
3918 | } | |
3919 | } | |
3920 | ||
71f3e391 | 3921 | temp = getenv (LIBRARY_PATH_ENV); |
fcc9ad83 | 3922 | if (temp && *cross_compile == '0') |
ed1f651b | 3923 | { |
878f32c3 | 3924 | const char *startp, *endp; |
e1e4cdc4 | 3925 | char *nstore = (char *) alloca (strlen (temp) + 3); |
ed1f651b RS |
3926 | |
3927 | startp = endp = temp; | |
3928 | while (1) | |
3929 | { | |
f6ec7e54 | 3930 | if (*endp == PATH_SEPARATOR || *endp == 0) |
ed1f651b | 3931 | { |
d25a45d4 | 3932 | strncpy (nstore, startp, endp - startp); |
ed1f651b | 3933 | if (endp == startp) |
d4f2852f | 3934 | strcpy (nstore, concat (".", dir_separator_str, NULL)); |
509781a4 | 3935 | else if (!IS_DIR_SEPARATOR (endp[-1])) |
ed1f651b | 3936 | { |
d25a45d4 KH |
3937 | nstore[endp - startp] = DIR_SEPARATOR; |
3938 | nstore[endp - startp + 1] = 0; | |
ed1f651b RS |
3939 | } |
3940 | else | |
d25a45d4 | 3941 | nstore[endp - startp] = 0; |
6496a589 | 3942 | add_prefix (&startfile_prefixes, nstore, NULL, |
1a5d37a1 | 3943 | PREFIX_PRIORITY_LAST, 0, 1); |
ed1f651b RS |
3944 | if (*endp == 0) |
3945 | break; | |
3946 | endp = startp = endp + 1; | |
3947 | } | |
3948 | else | |
3949 | endp++; | |
3950 | } | |
3951 | } | |
3952 | ||
3953 | /* Use LPATH like LIBRARY_PATH (for the CMU build program). */ | |
71f3e391 | 3954 | temp = getenv ("LPATH"); |
fcc9ad83 | 3955 | if (temp && *cross_compile == '0') |
ed1f651b | 3956 | { |
878f32c3 | 3957 | const char *startp, *endp; |
e1e4cdc4 | 3958 | char *nstore = (char *) alloca (strlen (temp) + 3); |
ed1f651b RS |
3959 | |
3960 | startp = endp = temp; | |
3961 | while (1) | |
3962 | { | |
f6ec7e54 | 3963 | if (*endp == PATH_SEPARATOR || *endp == 0) |
ed1f651b | 3964 | { |
d25a45d4 | 3965 | strncpy (nstore, startp, endp - startp); |
ed1f651b | 3966 | if (endp == startp) |
d4f2852f | 3967 | strcpy (nstore, concat (".", dir_separator_str, NULL)); |
509781a4 | 3968 | else if (!IS_DIR_SEPARATOR (endp[-1])) |
ed1f651b | 3969 | { |
d25a45d4 KH |
3970 | nstore[endp - startp] = DIR_SEPARATOR; |
3971 | nstore[endp - startp + 1] = 0; | |
ed1f651b RS |
3972 | } |
3973 | else | |
d25a45d4 | 3974 | nstore[endp - startp] = 0; |
6496a589 | 3975 | add_prefix (&startfile_prefixes, nstore, NULL, |
1a5d37a1 | 3976 | PREFIX_PRIORITY_LAST, 0, 1); |
ed1f651b RS |
3977 | if (*endp == 0) |
3978 | break; | |
3979 | endp = startp = endp + 1; | |
3980 | } | |
3981 | else | |
3982 | endp++; | |
3983 | } | |
3984 | } | |
3985 | ||
922e1882 JM |
3986 | /* Process the options and store input files and switches in their |
3987 | vectors. */ | |
3988 | ||
3989 | last_language_n_infiles = -1; | |
ed1f651b | 3990 | |
efe5e5a0 | 3991 | set_option_handlers (&handlers); |
fe7df9c4 | 3992 | |
603349bf JM |
3993 | for (j = 1; j < decoded_options_count; j++) |
3994 | { | |
3995 | switch (decoded_options[j].opt_index) | |
99f78cdd | 3996 | { |
603349bf JM |
3997 | case OPT_S: |
3998 | case OPT_c: | |
3999 | case OPT_E: | |
4000 | have_c = 1; | |
4001 | break; | |
99f78cdd | 4002 | } |
603349bf JM |
4003 | if (have_c) |
4004 | break; | |
4005 | } | |
ed1f651b | 4006 | |
603349bf JM |
4007 | for (j = 1; j < decoded_options_count; j++) |
4008 | { | |
4009 | if (decoded_options[j].opt_index == OPT_SPECIAL_input_file) | |
3a265431 | 4010 | { |
603349bf JM |
4011 | const char *arg = decoded_options[j].arg; |
4012 | const char *p = strrchr (arg, '@'); | |
922e1882 JM |
4013 | char *fname; |
4014 | long offset; | |
4015 | int consumed; | |
4016 | #ifdef HAVE_TARGET_OBJECT_SUFFIX | |
603349bf | 4017 | arg = convert_filename (arg, 0, access (arg, F_OK)); |
922e1882 JM |
4018 | #endif |
4019 | /* For LTO static archive support we handle input file | |
4020 | specifications that are composed of a filename and | |
4021 | an offset like FNAME@OFFSET. */ | |
4022 | if (p | |
603349bf | 4023 | && p != arg |
922e1882 JM |
4024 | && sscanf (p, "@%li%n", &offset, &consumed) >= 1 |
4025 | && strlen (p) == (unsigned int)consumed) | |
4026 | { | |
603349bf JM |
4027 | fname = (char *)xmalloc (p - arg + 1); |
4028 | memcpy (fname, arg, p - arg); | |
4029 | fname[p - arg] = '\0'; | |
922e1882 JM |
4030 | /* Only accept non-stdin and existing FNAME parts, otherwise |
4031 | try with the full name. */ | |
4032 | if (strcmp (fname, "-") == 0 || access (fname, F_OK) < 0) | |
4033 | { | |
4034 | free (fname); | |
603349bf | 4035 | fname = xstrdup (arg); |
922e1882 JM |
4036 | } |
4037 | } | |
4038 | else | |
603349bf | 4039 | fname = xstrdup (arg); |
d168aaee | 4040 | |
922e1882 JM |
4041 | if (strcmp (fname, "-") != 0 && access (fname, F_OK) < 0) |
4042 | perror_with_name (fname); | |
4043 | else | |
603349bf | 4044 | add_infile (arg, spec_lang); |
922e1882 JM |
4045 | |
4046 | free (fname); | |
603349bf | 4047 | continue; |
3a265431 | 4048 | } |
603349bf | 4049 | |
d4d24ba4 | 4050 | read_cmdline_option (&global_options, &global_options_set, |
a4d8c676 JM |
4051 | decoded_options + j, UNKNOWN_LOCATION, |
4052 | CL_DRIVER, &handlers, global_dc); | |
ed1f651b RS |
4053 | } |
4054 | ||
14fdc613 MM |
4055 | /* If -save-temps=obj and -o name, create the prefix to use for %b. |
4056 | Otherwise just make -save-temps=obj the same as -save-temps=cwd. */ | |
4057 | if (save_temps_flag == SAVE_TEMPS_OBJ && save_temps_prefix != NULL) | |
4058 | { | |
4059 | save_temps_length = strlen (save_temps_prefix); | |
4060 | temp = strrchr (lbasename (save_temps_prefix), '.'); | |
4061 | if (temp) | |
4062 | { | |
4063 | save_temps_length -= strlen (temp); | |
4064 | save_temps_prefix[save_temps_length] = '\0'; | |
4065 | } | |
4066 | ||
4067 | } | |
4068 | else if (save_temps_prefix != NULL) | |
4069 | { | |
4070 | free (save_temps_prefix); | |
4071 | save_temps_prefix = NULL; | |
4072 | } | |
4073 | ||
054e88a8 | 4074 | if (save_temps_flag && use_pipes) |
4977bab6 ZW |
4075 | { |
4076 | /* -save-temps overrides -pipe, so that temp files are produced */ | |
4077 | if (save_temps_flag) | |
2dec80c7 | 4078 | warning (0, "-pipe ignored because -save-temps specified"); |
4977bab6 ZW |
4079 | use_pipes = 0; |
4080 | } | |
1d088dee | 4081 | |
2153915d AO |
4082 | if (!compare_debug) |
4083 | { | |
4084 | const char *gcd = getenv ("GCC_COMPARE_DEBUG"); | |
4085 | ||
4086 | if (gcd && gcd[0] == '-') | |
4087 | { | |
4088 | compare_debug = 2; | |
4089 | compare_debug_opt = gcd; | |
2153915d AO |
4090 | } |
4091 | else if (gcd && *gcd && strcmp (gcd, "0")) | |
4092 | { | |
4093 | compare_debug = 3; | |
4094 | compare_debug_opt = "-gtoggle"; | |
2153915d AO |
4095 | } |
4096 | } | |
4097 | else if (compare_debug < 0) | |
4098 | { | |
4099 | compare_debug = 0; | |
4100 | gcc_assert (!compare_debug_opt); | |
4101 | } | |
4102 | ||
f4c0a303 CD |
4103 | /* Set up the search paths. We add directories that we expect to |
4104 | contain GNU Toolchain components before directories specified by | |
4105 | the machine description so that we will find GNU components (like | |
b8698a0f | 4106 | the GNU assembler) before those of the host system. */ |
ed1f651b | 4107 | |
f4c0a303 CD |
4108 | /* If we don't know where the toolchain has been installed, use the |
4109 | configured-in locations. */ | |
4110 | if (!gcc_exec_prefix) | |
4111 | { | |
48ff801b | 4112 | #ifndef OS2 |
f4c0a303 CD |
4113 | add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC", |
4114 | PREFIX_PRIORITY_LAST, 1, 0); | |
4115 | add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS", | |
4116 | PREFIX_PRIORITY_LAST, 2, 0); | |
4117 | add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS", | |
4118 | PREFIX_PRIORITY_LAST, 2, 0); | |
48ff801b | 4119 | #endif |
f4c0a303 CD |
4120 | add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS", |
4121 | PREFIX_PRIORITY_LAST, 1, 0); | |
4122 | } | |
ed1f651b | 4123 | |
f4c0a303 | 4124 | gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix)); |
fc429b48 TB |
4125 | tooldir_prefix2 = concat (tooldir_base_prefix, spec_machine, |
4126 | dir_separator_str, NULL); | |
c648ab8a | 4127 | |
f4c0a303 CD |
4128 | /* Look for tools relative to the location from which the driver is |
4129 | running, or, if that is not available, the configured prefix. */ | |
4130 | tooldir_prefix | |
4131 | = concat (gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix, | |
4132 | spec_machine, dir_separator_str, | |
fc429b48 TB |
4133 | spec_version, dir_separator_str, tooldir_prefix2, NULL); |
4134 | free (tooldir_prefix2); | |
c648ab8a | 4135 | |
9218435e | 4136 | add_prefix (&exec_prefixes, |
d4f2852f | 4137 | concat (tooldir_prefix, "bin", dir_separator_str, NULL), |
1a5d37a1 | 4138 | "BINUTILS", PREFIX_PRIORITY_LAST, 0, 0); |
48ff801b | 4139 | add_prefix (&startfile_prefixes, |
d4f2852f | 4140 | concat (tooldir_prefix, "lib", dir_separator_str, NULL), |
1a5d37a1 | 4141 | "BINUTILS", PREFIX_PRIORITY_LAST, 0, 1); |
fc429b48 | 4142 | free (tooldir_prefix); |
f18fd956 | 4143 | |
047d636f DJ |
4144 | #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS) |
4145 | /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix, | |
4146 | then consider it to relocate with the rest of the GCC installation | |
4147 | if GCC_EXEC_PREFIX is set. | |
4148 | ``make_relative_prefix'' is not compiled for VMS, so don't call it. */ | |
922e1882 | 4149 | if (target_system_root && !target_system_root_changed && gcc_exec_prefix) |
4977bab6 | 4150 | { |
60cf253a | 4151 | char *tmp_prefix = get_relative_prefix (decoded_options[0].arg, |
ba0c638e SB |
4152 | standard_bindir_prefix, |
4153 | target_system_root); | |
4977bab6 | 4154 | if (tmp_prefix && access_check (tmp_prefix, F_OK) == 0) |
047d636f DJ |
4155 | { |
4156 | target_system_root = tmp_prefix; | |
4157 | target_system_root_changed = 1; | |
4158 | } | |
4977bab6 | 4159 | } |
047d636f | 4160 | #endif |
4977bab6 | 4161 | |
004fd4d5 RS |
4162 | /* More prefixes are enabled in main, after we read the specs file |
4163 | and determine whether this is cross-compilation or not. */ | |
ed1f651b | 4164 | |
fa0d5369 | 4165 | if (n_infiles == last_language_n_infiles && spec_lang != 0) |
bdc6b402 | 4166 | warning (0, "%<-x %s%> after last input file has no effect", spec_lang); |
ed1f651b | 4167 | |
3ad2d621 DG |
4168 | /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG |
4169 | environment variable. */ | |
2153915d AO |
4170 | if (compare_debug == 2 || compare_debug == 3) |
4171 | { | |
3ad2d621 DG |
4172 | const char *opt = concat ("-fcompare-debug=", compare_debug_opt, NULL); |
4173 | save_switch (opt, 0, NULL, false, true); | |
2153915d AO |
4174 | compare_debug = 1; |
4175 | } | |
4176 | ||
69927b59 | 4177 | /* Ensure we only invoke each subprocess once. */ |
41fd0f9b | 4178 | if (print_subprocess_help || print_help_list || print_version) |
69927b59 | 4179 | { |
922e1882 | 4180 | n_infiles = 0; |
69927b59 | 4181 | |
c662432e NC |
4182 | /* Create a dummy input file, so that we can pass |
4183 | the help option on to the various sub-processes. */ | |
922e1882 | 4184 | add_infile ("help-dummy", "c"); |
69927b59 NB |
4185 | } |
4186 | ||
922e1882 | 4187 | alloc_switch (); |
ed1f651b | 4188 | switches[n_switches].part1 = 0; |
922e1882 | 4189 | alloc_infile (); |
ed1f651b RS |
4190 | infiles[n_infiles].name = 0; |
4191 | } | |
b856c15d | 4192 | |
4977bab6 | 4193 | /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS |
b856c15d RO |
4194 | and place that in the environment. */ |
4195 | ||
4196 | static void | |
1d088dee | 4197 | set_collect_gcc_options (void) |
b856c15d RO |
4198 | { |
4199 | int i; | |
4200 | int first_time; | |
4201 | ||
4202 | /* Build COLLECT_GCC_OPTIONS to have all of the options specified to | |
4203 | the compiler. */ | |
4204 | obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=", | |
4205 | sizeof ("COLLECT_GCC_OPTIONS=") - 1); | |
4206 | ||
4207 | first_time = TRUE; | |
4208 | for (i = 0; (int) i < n_switches; i++) | |
4209 | { | |
4210 | const char *const *args; | |
4211 | const char *p, *q; | |
4212 | if (!first_time) | |
4213 | obstack_grow (&collect_obstack, " ", 1); | |
4214 | ||
4215 | first_time = FALSE; | |
4216 | ||
4217 | /* Ignore elided switches. */ | |
96f5b137 L |
4218 | if ((switches[i].live_cond |
4219 | & (SWITCH_IGNORE | SWITCH_KEEP_FOR_GCC)) | |
4220 | == SWITCH_IGNORE) | |
b856c15d RO |
4221 | continue; |
4222 | ||
4223 | obstack_grow (&collect_obstack, "'-", 2); | |
4224 | q = switches[i].part1; | |
4225 | while ((p = strchr (q, '\''))) | |
4226 | { | |
4227 | obstack_grow (&collect_obstack, q, p - q); | |
4228 | obstack_grow (&collect_obstack, "'\\''", 4); | |
4229 | q = ++p; | |
4230 | } | |
4231 | obstack_grow (&collect_obstack, q, strlen (q)); | |
4232 | obstack_grow (&collect_obstack, "'", 1); | |
4233 | ||
4234 | for (args = switches[i].args; args && *args; args++) | |
4235 | { | |
4236 | obstack_grow (&collect_obstack, " '", 2); | |
4237 | q = *args; | |
4238 | while ((p = strchr (q, '\''))) | |
4239 | { | |
4240 | obstack_grow (&collect_obstack, q, p - q); | |
4241 | obstack_grow (&collect_obstack, "'\\''", 4); | |
4242 | q = ++p; | |
4243 | } | |
4244 | obstack_grow (&collect_obstack, q, strlen (q)); | |
4245 | obstack_grow (&collect_obstack, "'", 1); | |
4246 | } | |
4247 | } | |
4248 | obstack_grow (&collect_obstack, "\0", 1); | |
47d33318 | 4249 | xputenv (XOBFINISH (&collect_obstack, char *)); |
b856c15d | 4250 | } |
ed1f651b RS |
4251 | \f |
4252 | /* Process a spec string, accumulating and running commands. */ | |
4253 | ||
4254 | /* These variables describe the input file name. | |
4255 | input_file_number is the index on outfiles of this file, | |
4256 | so that the output file name can be stored for later use by %o. | |
4257 | input_basename is the start of the part of the input file | |
4258 | sans all directory names, and basename_length is the number | |
4259 | of characters starting there excluding the suffix .c or whatever. */ | |
4260 | ||
6afbc885 | 4261 | static const char *gcc_input_filename; |
ed1f651b | 4262 | static int input_file_number; |
f271358e | 4263 | size_t input_filename_length; |
ed1f651b | 4264 | static int basename_length; |
ea414c97 | 4265 | static int suffixed_basename_length; |
878f32c3 KG |
4266 | static const char *input_basename; |
4267 | static const char *input_suffix; | |
a9024779 | 4268 | #ifndef HOST_LACKS_INODE_NUMBERS |
99f78cdd | 4269 | static struct stat input_stat; |
a9024779 | 4270 | #endif |
99f78cdd | 4271 | static int input_stat_set; |
ed1f651b | 4272 | |
a9374841 MM |
4273 | /* The compiler used to process the current input file. */ |
4274 | static struct compiler *input_file_compiler; | |
4275 | ||
ed1f651b RS |
4276 | /* These are variables used within do_spec and do_spec_1. */ |
4277 | ||
4278 | /* Nonzero if an arg has been started and not yet terminated | |
4279 | (with space, tab or newline). */ | |
4280 | static int arg_going; | |
4281 | ||
4282 | /* Nonzero means %d or %g has been seen; the next arg to be terminated | |
4283 | is a temporary file name. */ | |
4284 | static int delete_this_arg; | |
4285 | ||
4286 | /* Nonzero means %w has been seen; the next arg to be terminated | |
4287 | is the output file name of this compilation. */ | |
4288 | static int this_is_output_file; | |
4289 | ||
4290 | /* Nonzero means %s has been seen; the next arg to be terminated | |
4291 | is the name of a library file and we should try the standard | |
4292 | search dirs for it. */ | |
4293 | static int this_is_library_file; | |
4294 | ||
3beb864c NC |
4295 | /* Nonzero means %T has been seen; the next arg to be terminated |
4296 | is the name of a linker script and we should try all of the | |
4297 | standard search dirs for it. If it is found insert a --script | |
4298 | command line switch and then substitute the full path in place, | |
4299 | otherwise generate an error message. */ | |
4300 | static int this_is_linker_script; | |
4301 | ||
a99bf70c JW |
4302 | /* Nonzero means that the input of this command is coming from a pipe. */ |
4303 | static int input_from_pipe; | |
4304 | ||
11972f66 | 4305 | /* Nonnull means substitute this for any suffix when outputting a switches |
dc297297 | 4306 | arguments. */ |
11972f66 NS |
4307 | static const char *suffix_subst; |
4308 | ||
13e7cedb DH |
4309 | /* If there is an argument being accumulated, terminate it and store it. */ |
4310 | ||
4311 | static void | |
4312 | end_going_arg (void) | |
4313 | { | |
4314 | if (arg_going) | |
4315 | { | |
4316 | const char *string; | |
4317 | ||
4318 | obstack_1grow (&obstack, 0); | |
4319 | string = XOBFINISH (&obstack, const char *); | |
4320 | if (this_is_library_file) | |
4321 | string = find_file (string); | |
3beb864c NC |
4322 | if (this_is_linker_script) |
4323 | { | |
4324 | char * full_script_path = find_a_file (&startfile_prefixes, string, R_OK, true); | |
4325 | ||
4326 | if (full_script_path == NULL) | |
4327 | { | |
bdc6b402 | 4328 | error ("unable to locate default linker script %qs in the library search paths", string); |
3beb864c NC |
4329 | /* Script was not found on search path. */ |
4330 | return; | |
4331 | } | |
4332 | store_arg ("--script", false, false); | |
4333 | string = full_script_path; | |
4334 | } | |
13e7cedb DH |
4335 | store_arg (string, delete_this_arg, this_is_output_file); |
4336 | if (this_is_output_file) | |
4337 | outfiles[input_file_number] = string; | |
4338 | arg_going = 0; | |
4339 | } | |
4340 | } | |
4341 | ||
fe7df9c4 SP |
4342 | |
4343 | /* Parse the WRAPPER string which is a comma separated list of the command line | |
4344 | and insert them into the beginning of argbuf. */ | |
4345 | ||
4346 | static void | |
4347 | insert_wrapper (const char *wrapper) | |
4348 | { | |
4349 | int n = 0; | |
4350 | int i; | |
4351 | char *buf = xstrdup (wrapper); | |
4352 | char *p = buf; | |
9771b263 | 4353 | unsigned int old_length = argbuf.length (); |
fe7df9c4 SP |
4354 | |
4355 | do | |
4356 | { | |
4357 | n++; | |
4358 | while (*p == ',') | |
4359 | p++; | |
4360 | } | |
4361 | while ((p = strchr (p, ',')) != NULL); | |
4362 | ||
9771b263 DN |
4363 | argbuf.safe_grow (old_length + n); |
4364 | memmove (argbuf.address () + n, | |
4365 | argbuf.address (), | |
5b634ee0 | 4366 | old_length * sizeof (const_char_p)); |
fe7df9c4 SP |
4367 | |
4368 | i = 0; | |
4369 | p = buf; | |
4370 | do | |
4371 | { | |
4372 | while (*p == ',') | |
4373 | { | |
4374 | *p = 0; | |
4375 | p++; | |
4376 | } | |
9771b263 | 4377 | argbuf[i] = p; |
5b634ee0 | 4378 | i++; |
fe7df9c4 SP |
4379 | } |
4380 | while ((p = strchr (p, ',')) != NULL); | |
4381 | gcc_assert (i == n); | |
fe7df9c4 SP |
4382 | } |
4383 | ||
ed1f651b RS |
4384 | /* Process the spec SPEC and run the commands specified therein. |
4385 | Returns 0 if the spec is successfully processed; -1 if failed. */ | |
4386 | ||
f271358e | 4387 | int |
1d088dee | 4388 | do_spec (const char *spec) |
ed1f651b RS |
4389 | { |
4390 | int value; | |
4391 | ||
343f59d9 | 4392 | value = do_spec_2 (spec); |
ed1f651b RS |
4393 | |
4394 | /* Force out any unfinished command. | |
4395 | If -pipe, this forces out the last command if it ended in `|'. */ | |
4396 | if (value == 0) | |
4397 | { | |
9771b263 DN |
4398 | if (argbuf.length () > 0 |
4399 | && !strcmp (argbuf.last (), "|")) | |
4400 | argbuf.pop (); | |
ed1f651b | 4401 | |
b856c15d RO |
4402 | set_collect_gcc_options (); |
4403 | ||
9771b263 | 4404 | if (argbuf.length () > 0) |
ed1f651b RS |
4405 | value = execute (); |
4406 | } | |
4407 | ||
4408 | return value; | |
4409 | } | |
4410 | ||
343f59d9 | 4411 | static int |
1d088dee | 4412 | do_spec_2 (const char *spec) |
343f59d9 | 4413 | { |
6544fbcb RS |
4414 | int result; |
4415 | ||
343f59d9 AM |
4416 | clear_args (); |
4417 | arg_going = 0; | |
4418 | delete_this_arg = 0; | |
4419 | this_is_output_file = 0; | |
4420 | this_is_library_file = 0; | |
3beb864c | 4421 | this_is_linker_script = 0; |
343f59d9 AM |
4422 | input_from_pipe = 0; |
4423 | suffix_subst = NULL; | |
4424 | ||
6544fbcb RS |
4425 | result = do_spec_1 (spec, 0, NULL); |
4426 | ||
13e7cedb | 4427 | end_going_arg (); |
6544fbcb RS |
4428 | |
4429 | return result; | |
343f59d9 AM |
4430 | } |
4431 | ||
db36994b | 4432 | |
7816bea0 DJ |
4433 | /* Process the given spec string and add any new options to the end |
4434 | of the switches/n_switches array. */ | |
4435 | ||
4436 | static void | |
1d088dee | 4437 | do_option_spec (const char *name, const char *spec) |
7816bea0 DJ |
4438 | { |
4439 | unsigned int i, value_count, value_len; | |
4440 | const char *p, *q, *value; | |
4441 | char *tmp_spec, *tmp_spec_p; | |
4442 | ||
4443 | if (configure_default_options[0].name == NULL) | |
4444 | return; | |
4445 | ||
4446 | for (i = 0; i < ARRAY_SIZE (configure_default_options); i++) | |
4447 | if (strcmp (configure_default_options[i].name, name) == 0) | |
4448 | break; | |
4449 | if (i == ARRAY_SIZE (configure_default_options)) | |
4450 | return; | |
4451 | ||
4452 | value = configure_default_options[i].value; | |
4453 | value_len = strlen (value); | |
4454 | ||
4455 | /* Compute the size of the final spec. */ | |
4456 | value_count = 0; | |
4457 | p = spec; | |
4458 | while ((p = strstr (p, "%(VALUE)")) != NULL) | |
4459 | { | |
4460 | p ++; | |
4461 | value_count ++; | |
4462 | } | |
4463 | ||
4464 | /* Replace each %(VALUE) by the specified value. */ | |
e1e4cdc4 | 4465 | tmp_spec = (char *) alloca (strlen (spec) + 1 |
7816bea0 DJ |
4466 | + value_count * (value_len - strlen ("%(VALUE)"))); |
4467 | tmp_spec_p = tmp_spec; | |
4468 | q = spec; | |
4469 | while ((p = strstr (q, "%(VALUE)")) != NULL) | |
4470 | { | |
4471 | memcpy (tmp_spec_p, q, p - q); | |
4472 | tmp_spec_p = tmp_spec_p + (p - q); | |
4473 | memcpy (tmp_spec_p, value, value_len); | |
4474 | tmp_spec_p += value_len; | |
4475 | q = p + strlen ("%(VALUE)"); | |
4476 | } | |
4477 | strcpy (tmp_spec_p, q); | |
4478 | ||
4479 | do_self_spec (tmp_spec); | |
4480 | } | |
4481 | ||
db36994b RS |
4482 | /* Process the given spec string and add any new options to the end |
4483 | of the switches/n_switches array. */ | |
4484 | ||
4485 | static void | |
1d088dee | 4486 | do_self_spec (const char *spec) |
db36994b | 4487 | { |
94b90527 JJ |
4488 | int i; |
4489 | ||
db36994b RS |
4490 | do_spec_2 (spec); |
4491 | do_spec_1 (" ", 0, NULL); | |
4492 | ||
94b90527 JJ |
4493 | /* Mark %<S switches processed by do_self_spec to be ignored permanently. |
4494 | do_self_specs adds the replacements to switches array, so it shouldn't | |
4495 | be processed afterwards. */ | |
4496 | for (i = 0; i < n_switches; i++) | |
4497 | if ((switches[i].live_cond & SWITCH_IGNORE)) | |
4498 | switches[i].live_cond |= SWITCH_IGNORE_PERMANENTLY; | |
4499 | ||
9771b263 | 4500 | if (argbuf.length () > 0) |
db36994b | 4501 | { |
efe5e5a0 JM |
4502 | const char **argbuf_copy; |
4503 | struct cl_decoded_option *decoded_options; | |
4504 | struct cl_option_handlers handlers; | |
4505 | unsigned int decoded_options_count; | |
4506 | unsigned int j; | |
db36994b | 4507 | |
efe5e5a0 JM |
4508 | /* Create a copy of argbuf with a dummy argv[0] entry for |
4509 | decode_cmdline_options_to_array. */ | |
5b634ee0 | 4510 | argbuf_copy = XNEWVEC (const char *, |
9771b263 | 4511 | argbuf.length () + 1); |
efe5e5a0 | 4512 | argbuf_copy[0] = ""; |
9771b263 DN |
4513 | memcpy (argbuf_copy + 1, argbuf.address (), |
4514 | argbuf.length () * sizeof (const char *)); | |
db36994b | 4515 | |
9771b263 | 4516 | decode_cmdline_options_to_array (argbuf.length () + 1, |
5b634ee0 | 4517 | argbuf_copy, |
efe5e5a0 JM |
4518 | CL_DRIVER, &decoded_options, |
4519 | &decoded_options_count); | |
fc429b48 | 4520 | free (argbuf_copy); |
2153915d | 4521 | |
efe5e5a0 | 4522 | set_option_handlers (&handlers); |
2153915d | 4523 | |
efe5e5a0 JM |
4524 | for (j = 1; j < decoded_options_count; j++) |
4525 | { | |
4526 | switch (decoded_options[j].opt_index) | |
2153915d | 4527 | { |
efe5e5a0 JM |
4528 | case OPT_SPECIAL_input_file: |
4529 | /* Specs should only generate options, not input | |
4530 | files. */ | |
4531 | if (strcmp (decoded_options[j].arg, "-") != 0) | |
4532 | fatal_error ("switch %qs does not start with %<-%>", | |
4533 | decoded_options[j].arg); | |
4534 | else | |
4535 | fatal_error ("spec-generated switch is just %<-%>"); | |
4536 | break; | |
2153915d | 4537 | |
efe5e5a0 JM |
4538 | case OPT_fcompare_debug_second: |
4539 | case OPT_fcompare_debug: | |
4540 | case OPT_fcompare_debug_: | |
4541 | case OPT_o: | |
4542 | /* Avoid duplicate processing of some options from | |
4543 | compare-debug specs; just save them here. */ | |
4544 | save_switch (decoded_options[j].canonical_option[0], | |
4545 | (decoded_options[j].canonical_option_num_elements | |
4546 | - 1), | |
d168aaee | 4547 | &decoded_options[j].canonical_option[1], false, true); |
efe5e5a0 JM |
4548 | break; |
4549 | ||
4550 | default: | |
4551 | read_cmdline_option (&global_options, &global_options_set, | |
a4d8c676 JM |
4552 | decoded_options + j, UNKNOWN_LOCATION, |
4553 | CL_DRIVER, &handlers, global_dc); | |
efe5e5a0 | 4554 | break; |
2153915d | 4555 | } |
db36994b | 4556 | } |
2153915d | 4557 | |
efe5e5a0 | 4558 | alloc_switch (); |
2153915d | 4559 | switches[n_switches].part1 = 0; |
db36994b RS |
4560 | } |
4561 | } | |
4562 | ||
00dcee0c AM |
4563 | /* Callback for processing %D and %I specs. */ |
4564 | ||
4565 | struct spec_path_info { | |
4566 | const char *option; | |
4567 | const char *append; | |
4568 | size_t append_len; | |
4569 | bool omit_relative; | |
4570 | bool separate_options; | |
4571 | }; | |
4572 | ||
4573 | static void * | |
4574 | spec_path (char *path, void *data) | |
76391e5a | 4575 | { |
e1e4cdc4 | 4576 | struct spec_path_info *info = (struct spec_path_info *) data; |
00dcee0c AM |
4577 | size_t len = 0; |
4578 | char save = 0; | |
76391e5a | 4579 | |
00dcee0c AM |
4580 | if (info->omit_relative && !IS_ABSOLUTE_PATH (path)) |
4581 | return NULL; | |
4582 | ||
4583 | if (info->append_len != 0) | |
76391e5a | 4584 | { |
00dcee0c AM |
4585 | len = strlen (path); |
4586 | memcpy (path + len, info->append, info->append_len + 1); | |
76391e5a PB |
4587 | } |
4588 | ||
00dcee0c AM |
4589 | if (!is_directory (path, true)) |
4590 | return NULL; | |
76391e5a | 4591 | |
00dcee0c AM |
4592 | do_spec_1 (info->option, 1, NULL); |
4593 | if (info->separate_options) | |
4594 | do_spec_1 (" ", 0, NULL); | |
4595 | ||
4596 | if (info->append_len == 0) | |
76391e5a | 4597 | { |
00dcee0c AM |
4598 | len = strlen (path); |
4599 | save = path[len - 1]; | |
4600 | if (IS_DIR_SEPARATOR (path[len - 1])) | |
4601 | path[len - 1] = '\0'; | |
76391e5a | 4602 | } |
00dcee0c AM |
4603 | |
4604 | do_spec_1 (path, 1, NULL); | |
4605 | do_spec_1 (" ", 0, NULL); | |
4606 | ||
4607 | /* Must not damage the original path. */ | |
4608 | if (info->append_len == 0) | |
4609 | path[len - 1] = save; | |
4610 | ||
4611 | return NULL; | |
76391e5a PB |
4612 | } |
4613 | ||
5a691e98 RAE |
4614 | /* Create a temporary FILE with the contents of ARGV. Add @FILE to the |
4615 | argument list. */ | |
4616 | ||
4617 | static void | |
4618 | create_at_file (char **argv) | |
4619 | { | |
4620 | char *temp_file = make_temp_file (""); | |
4621 | char *at_argument = concat ("@", temp_file, NULL); | |
4622 | FILE *f = fopen (temp_file, "w"); | |
4623 | int status; | |
4624 | ||
4625 | if (f == NULL) | |
2dec80c7 JM |
4626 | fatal_error ("could not open temporary response file %s", |
4627 | temp_file); | |
5a691e98 RAE |
4628 | |
4629 | status = writeargv (argv, f); | |
4630 | ||
4631 | if (status) | |
2dec80c7 JM |
4632 | fatal_error ("could not write to temporary response file %s", |
4633 | temp_file); | |
5a691e98 RAE |
4634 | |
4635 | status = fclose (f); | |
4636 | ||
4637 | if (EOF == status) | |
2dec80c7 JM |
4638 | fatal_error ("could not close temporary response file %s", |
4639 | temp_file); | |
5a691e98 RAE |
4640 | |
4641 | store_arg (at_argument, 0, 0); | |
4642 | ||
4643 | record_temp_file (temp_file, !save_temps_flag, !save_temps_flag); | |
4644 | } | |
4645 | ||
4646 | /* True if we should compile INFILE. */ | |
4647 | ||
4648 | static bool | |
4649 | compile_input_file_p (struct infile *infile) | |
4650 | { | |
4651 | if ((!infile->language) || (infile->language[0] != '*')) | |
4652 | if (infile->incompiler == input_file_compiler) | |
4653 | return true; | |
4654 | return false; | |
4655 | } | |
4656 | ||
69d540bd NF |
4657 | /* Process each member of VEC as a spec. */ |
4658 | ||
4659 | static void | |
9771b263 | 4660 | do_specs_vec (vec<char_p> vec) |
69d540bd NF |
4661 | { |
4662 | unsigned ix; | |
4663 | char *opt; | |
4664 | ||
9771b263 | 4665 | FOR_EACH_VEC_ELT (vec, ix, opt) |
69d540bd NF |
4666 | { |
4667 | do_spec_1 (opt, 1, NULL); | |
4668 | /* Make each accumulated option a separate argument. */ | |
4669 | do_spec_1 (" ", 0, NULL); | |
4670 | } | |
4671 | } | |
4672 | ||
ed1f651b RS |
4673 | /* Process the sub-spec SPEC as a portion of a larger spec. |
4674 | This is like processing a whole spec except that we do | |
4675 | not initialize at the beginning and we do not supply a | |
4676 | newline by default at the end. | |
4677 | INSWITCH nonzero means don't process %-sequences in SPEC; | |
4678 | in this case, % is treated as an ordinary character. | |
4679 | This is used while substituting switches. | |
4680 | INSWITCH nonzero also causes SPC not to terminate an argument. | |
4681 | ||
4682 | Value is zero unless a line was finished | |
4683 | and the command on that line reported an error. */ | |
4684 | ||
4685 | static int | |
1d088dee | 4686 | do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part) |
ed1f651b | 4687 | { |
b3694847 SS |
4688 | const char *p = spec; |
4689 | int c; | |
ed1f651b | 4690 | int i; |
3279bba6 | 4691 | int value; |
ed1f651b | 4692 | |
7fcf46f5 JZ |
4693 | /* If it's an empty string argument to a switch, keep it as is. */ |
4694 | if (inswitch && !*p) | |
4695 | arg_going = 1; | |
4696 | ||
ededb2fc | 4697 | while ((c = *p++)) |
ed1f651b RS |
4698 | /* If substituting a switch, treat all chars like letters. |
4699 | Otherwise, NL, SPC, TAB and % are special. */ | |
4700 | switch (inswitch ? 'a' : c) | |
4701 | { | |
4702 | case '\n': | |
13e7cedb | 4703 | end_going_arg (); |
ed1f651b | 4704 | |
9771b263 DN |
4705 | if (argbuf.length () > 0 |
4706 | && !strcmp (argbuf.last (), "|")) | |
ed1f651b | 4707 | { |
ed1f651b RS |
4708 | /* A `|' before the newline means use a pipe here, |
4709 | but only if -pipe was specified. | |
4710 | Otherwise, execute now and don't pass the `|' as an arg. */ | |
4977bab6 | 4711 | if (use_pipes) |
ed1f651b | 4712 | { |
a99bf70c | 4713 | input_from_pipe = 1; |
ed1f651b RS |
4714 | break; |
4715 | } | |
4716 | else | |
9771b263 | 4717 | argbuf.pop (); |
ed1f651b RS |
4718 | } |
4719 | ||
b856c15d RO |
4720 | set_collect_gcc_options (); |
4721 | ||
9771b263 | 4722 | if (argbuf.length () > 0) |
ed1f651b | 4723 | { |
3279bba6 | 4724 | value = execute (); |
ed1f651b RS |
4725 | if (value) |
4726 | return value; | |
4727 | } | |
4728 | /* Reinitialize for a new command, and for a new argument. */ | |
4729 | clear_args (); | |
4730 | arg_going = 0; | |
4731 | delete_this_arg = 0; | |
4732 | this_is_output_file = 0; | |
4733 | this_is_library_file = 0; | |
3beb864c | 4734 | this_is_linker_script = 0; |
a99bf70c | 4735 | input_from_pipe = 0; |
ed1f651b RS |
4736 | break; |
4737 | ||
4738 | case '|': | |
13e7cedb | 4739 | end_going_arg (); |
ed1f651b RS |
4740 | |
4741 | /* Use pipe */ | |
4742 | obstack_1grow (&obstack, c); | |
4743 | arg_going = 1; | |
4744 | break; | |
4745 | ||
4746 | case '\t': | |
4747 | case ' ': | |
13e7cedb DH |
4748 | end_going_arg (); |
4749 | ||
ed1f651b | 4750 | /* Reinitialize for a new argument. */ |
ed1f651b RS |
4751 | delete_this_arg = 0; |
4752 | this_is_output_file = 0; | |
4753 | this_is_library_file = 0; | |
3beb864c | 4754 | this_is_linker_script = 0; |
ed1f651b RS |
4755 | break; |
4756 | ||
4757 | case '%': | |
4758 | switch (c = *p++) | |
4759 | { | |
4760 | case 0: | |
bdc6b402 | 4761 | fatal_error ("spec %qs invalid", spec); |
ed1f651b RS |
4762 | |
4763 | case 'b': | |
14fdc613 MM |
4764 | if (save_temps_length) |
4765 | obstack_grow (&obstack, save_temps_prefix, save_temps_length); | |
4766 | else | |
4767 | obstack_grow (&obstack, input_basename, basename_length); | |
2153915d AO |
4768 | if (compare_debug < 0) |
4769 | obstack_grow (&obstack, ".gk", 3); | |
ed1f651b RS |
4770 | arg_going = 1; |
4771 | break; | |
4772 | ||
ea414c97 | 4773 | case 'B': |
14fdc613 MM |
4774 | if (save_temps_length) |
4775 | obstack_grow (&obstack, save_temps_prefix, save_temps_length); | |
4776 | else | |
4777 | obstack_grow (&obstack, input_basename, suffixed_basename_length); | |
2153915d AO |
4778 | if (compare_debug < 0) |
4779 | obstack_grow (&obstack, ".gk", 3); | |
ea414c97 ZW |
4780 | arg_going = 1; |
4781 | break; | |
4782 | ||
ed1f651b RS |
4783 | case 'd': |
4784 | delete_this_arg = 2; | |
4785 | break; | |
4786 | ||
4787 | /* Dump out the directories specified with LIBRARY_PATH, | |
004fd4d5 RS |
4788 | followed by the absolute directories |
4789 | that we search for startfiles. */ | |
ed1f651b | 4790 | case 'D': |
8cacec76 | 4791 | { |
00dcee0c | 4792 | struct spec_path_info info; |
59014d0a | 4793 | |
00dcee0c AM |
4794 | info.option = "-L"; |
4795 | info.append_len = 0; | |
76391e5a | 4796 | #ifdef RELATIVE_PREFIX_NOT_LINKDIR |
00dcee0c AM |
4797 | /* Used on systems which record the specified -L dirs |
4798 | and use them to search for dynamic linking. | |
4799 | Relative directories always come from -B, | |
4800 | and it is better not to use them for searching | |
4801 | at run time. In particular, stage1 loses. */ | |
4802 | info.omit_relative = true; | |
76391e5a | 4803 | #else |
00dcee0c | 4804 | info.omit_relative = false; |
004fd4d5 | 4805 | #endif |
00dcee0c AM |
4806 | info.separate_options = false; |
4807 | ||
4808 | for_each_path (&startfile_prefixes, true, 0, spec_path, &info); | |
8cacec76 | 4809 | } |
ed1f651b RS |
4810 | break; |
4811 | ||
4812 | case 'e': | |
ab87f8c8 | 4813 | /* %efoo means report an error with `foo' as error message |
ed1f651b RS |
4814 | and don't execute any more commands for this file. */ |
4815 | { | |
878f32c3 | 4816 | const char *q = p; |
ed1f651b | 4817 | char *buf; |
d25a45d4 KH |
4818 | while (*p != 0 && *p != '\n') |
4819 | p++; | |
e1e4cdc4 | 4820 | buf = (char *) alloca (p - q + 1); |
ed1f651b RS |
4821 | strncpy (buf, q, p - q); |
4822 | buf[p - q] = 0; | |
5bc69b92 | 4823 | error ("%s", _(buf)); |
ed1f651b RS |
4824 | return -1; |
4825 | } | |
4826 | break; | |
4a88a060 | 4827 | case 'n': |
09da1532 | 4828 | /* %nfoo means report a notice with `foo' on stderr. */ |
4a88a060 JH |
4829 | { |
4830 | const char *q = p; | |
4831 | char *buf; | |
4832 | while (*p != 0 && *p != '\n') | |
4833 | p++; | |
e1e4cdc4 | 4834 | buf = (char *) alloca (p - q + 1); |
4a88a060 JH |
4835 | strncpy (buf, q, p - q); |
4836 | buf[p - q] = 0; | |
2dec80c7 | 4837 | inform (0, "%s", _(buf)); |
4a88a060 JH |
4838 | if (*p) |
4839 | p++; | |
4840 | } | |
4841 | break; | |
ed1f651b | 4842 | |
d25a45d4 KH |
4843 | case 'j': |
4844 | { | |
4845 | struct stat st; | |
4846 | ||
4977bab6 ZW |
4847 | /* If save_temps_flag is off, and the HOST_BIT_BUCKET is |
4848 | defined, and it is not a directory, and it is | |
4849 | writable, use it. Otherwise, treat this like any | |
4850 | other temporary file. */ | |
d25a45d4 KH |
4851 | |
4852 | if ((!save_temps_flag) | |
4853 | && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode)) | |
4854 | && (access (HOST_BIT_BUCKET, W_OK) == 0)) | |
4855 | { | |
4856 | obstack_grow (&obstack, HOST_BIT_BUCKET, | |
4857 | strlen (HOST_BIT_BUCKET)); | |
4858 | delete_this_arg = 0; | |
4859 | arg_going = 1; | |
4860 | break; | |
4861 | } | |
4862 | } | |
4977bab6 ZW |
4863 | goto create_temp_file; |
4864 | case '|': | |
4865 | if (use_pipes) | |
4866 | { | |
4867 | obstack_1grow (&obstack, '-'); | |
4868 | delete_this_arg = 0; | |
4869 | arg_going = 1; | |
4870 | ||
4871 | /* consume suffix */ | |
a92dd235 | 4872 | while (*p == '.' || ISALNUM ((unsigned char) *p)) |
4977bab6 ZW |
4873 | p++; |
4874 | if (p[0] == '%' && p[1] == 'O') | |
4875 | p += 2; | |
1d088dee | 4876 | |
4977bab6 ZW |
4877 | break; |
4878 | } | |
4879 | goto create_temp_file; | |
4880 | case 'm': | |
4881 | if (use_pipes) | |
4882 | { | |
4883 | /* consume suffix */ | |
a92dd235 | 4884 | while (*p == '.' || ISALNUM ((unsigned char) *p)) |
4977bab6 ZW |
4885 | p++; |
4886 | if (p[0] == '%' && p[1] == 'O') | |
4887 | p += 2; | |
1d088dee | 4888 | |
4977bab6 ZW |
4889 | break; |
4890 | } | |
4891 | goto create_temp_file; | |
ed1f651b | 4892 | case 'g': |
d887e808 | 4893 | case 'u': |
4401b31c | 4894 | case 'U': |
4977bab6 | 4895 | create_temp_file: |
ed1f651b | 4896 | { |
fb266030 | 4897 | struct temp_name *t; |
dd75c292 | 4898 | int suffix_length; |
878f32c3 | 4899 | const char *suffix = p; |
a1d9074c | 4900 | char *saved_suffix = NULL; |
dd75c292 | 4901 | |
a92dd235 | 4902 | while (*p == '.' || ISALNUM ((unsigned char) *p)) |
a1d9074c TT |
4903 | p++; |
4904 | suffix_length = p - suffix; | |
dd75c292 CB |
4905 | if (p[0] == '%' && p[1] == 'O') |
4906 | { | |
cbc54665 | 4907 | p += 2; |
dd75c292 | 4908 | /* We don't support extra suffix characters after %O. */ |
a92dd235 | 4909 | if (*p == '.' || ISALNUM ((unsigned char) *p)) |
bdc6b402 | 4910 | fatal_error ("spec %qs has invalid %<%%0%c%>", spec, *p); |
a1d9074c | 4911 | if (suffix_length == 0) |
45936a85 | 4912 | suffix = TARGET_OBJECT_SUFFIX; |
a1d9074c TT |
4913 | else |
4914 | { | |
4915 | saved_suffix | |
5ed6ace5 | 4916 | = XNEWVEC (char, suffix_length |
e3cb8f05 | 4917 | + strlen (TARGET_OBJECT_SUFFIX) + 1); |
a1d9074c TT |
4918 | strncpy (saved_suffix, suffix, suffix_length); |
4919 | strcpy (saved_suffix + suffix_length, | |
45936a85 | 4920 | TARGET_OBJECT_SUFFIX); |
a1d9074c | 4921 | } |
45936a85 | 4922 | suffix_length += strlen (TARGET_OBJECT_SUFFIX); |
dd75c292 | 4923 | } |
589005ff | 4924 | |
2153915d AO |
4925 | if (compare_debug < 0) |
4926 | { | |
4927 | suffix = concat (".gk", suffix, NULL); | |
4928 | suffix_length += 3; | |
4929 | } | |
4930 | ||
14fdc613 MM |
4931 | /* If -save-temps=obj and -o were specified, use that for the |
4932 | temp file. */ | |
4933 | if (save_temps_length) | |
4934 | { | |
4935 | char *tmp; | |
4936 | temp_filename_length | |
4937 | = save_temps_length + suffix_length + 1; | |
4938 | tmp = (char *) alloca (temp_filename_length); | |
4939 | memcpy (tmp, save_temps_prefix, save_temps_length); | |
4940 | memcpy (tmp + save_temps_length, suffix, suffix_length); | |
4941 | tmp[save_temps_length + suffix_length] = '\0'; | |
fc429b48 TB |
4942 | temp_filename = save_string (tmp, save_temps_length |
4943 | + suffix_length); | |
14fdc613 MM |
4944 | obstack_grow (&obstack, temp_filename, |
4945 | temp_filename_length); | |
4946 | arg_going = 1; | |
4947 | delete_this_arg = 0; | |
4948 | break; | |
4949 | } | |
4950 | ||
6afbc885 | 4951 | /* If the gcc_input_filename has the same suffix specified |
99f78cdd IR |
4952 | for the %g, %u, or %U, and -save-temps is specified, |
4953 | we could end up using that file as an intermediate | |
4954 | thus clobbering the user's source file (.e.g., | |
4955 | gcc -save-temps foo.s would clobber foo.s with the | |
4956 | output of cpp0). So check for this condition and | |
4957 | generate a temp file as the intermediate. */ | |
589005ff | 4958 | |
99f78cdd IR |
4959 | if (save_temps_flag) |
4960 | { | |
6ea2b70d | 4961 | char *tmp; |
14fdc613 MM |
4962 | temp_filename_length = basename_length + suffix_length + 1; |
4963 | tmp = (char *) alloca (temp_filename_length); | |
4964 | memcpy (tmp, input_basename, basename_length); | |
4965 | memcpy (tmp + basename_length, suffix, suffix_length); | |
4966 | tmp[basename_length + suffix_length] = '\0'; | |
6ea2b70d | 4967 | temp_filename = tmp; |
14fdc613 | 4968 | |
ba78087b | 4969 | if (filename_cmp (temp_filename, gcc_input_filename) != 0) |
99f78cdd | 4970 | { |
a9024779 | 4971 | #ifndef HOST_LACKS_INODE_NUMBERS |
1d088dee | 4972 | struct stat st_temp; |
589005ff | 4973 | |
1d088dee AJ |
4974 | /* Note, set_input() resets input_stat_set to 0. */ |
4975 | if (input_stat_set == 0) | |
4976 | { | |
6afbc885 JM |
4977 | input_stat_set = stat (gcc_input_filename, |
4978 | &input_stat); | |
1d088dee AJ |
4979 | if (input_stat_set >= 0) |
4980 | input_stat_set = 1; | |
4981 | } | |
589005ff | 4982 | |
6afbc885 | 4983 | /* If we have the stat for the gcc_input_filename |
1d088dee AJ |
4984 | and we can do the stat for the temp_filename |
4985 | then the they could still refer to the same | |
4986 | file if st_dev/st_ino's are the same. */ | |
99f78cdd IR |
4987 | if (input_stat_set != 1 |
4988 | || stat (temp_filename, &st_temp) < 0 | |
4989 | || input_stat.st_dev != st_temp.st_dev | |
4990 | || input_stat.st_ino != st_temp.st_ino) | |
a9024779 DS |
4991 | #else |
4992 | /* Just compare canonical pathnames. */ | |
6afbc885 | 4993 | char* input_realname = lrealpath (gcc_input_filename); |
a9024779 | 4994 | char* temp_realname = lrealpath (temp_filename); |
ba78087b | 4995 | bool files_differ = filename_cmp (input_realname, temp_realname); |
a9024779 DS |
4996 | free (input_realname); |
4997 | free (temp_realname); | |
7904f95f | 4998 | if (files_differ) |
a9024779 | 4999 | #endif |
589005ff | 5000 | { |
99f78cdd IR |
5001 | temp_filename = save_string (temp_filename, |
5002 | temp_filename_length + 1); | |
5003 | obstack_grow (&obstack, temp_filename, | |
1d088dee | 5004 | temp_filename_length); |
99f78cdd | 5005 | arg_going = 1; |
d2dff06b | 5006 | delete_this_arg = 0; |
99f78cdd IR |
5007 | break; |
5008 | } | |
5009 | } | |
5010 | } | |
fb266030 TW |
5011 | |
5012 | /* See if we already have an association of %g/%u/%U and | |
5013 | suffix. */ | |
5014 | for (t = temp_names; t; t = t->next) | |
dd75c292 CB |
5015 | if (t->length == suffix_length |
5016 | && strncmp (t->suffix, suffix, suffix_length) == 0 | |
95456d43 | 5017 | && t->unique == (c == 'u' || c == 'U' || c == 'j')) |
fb266030 TW |
5018 | break; |
5019 | ||
2297fdf1 TT |
5020 | /* Make a new association if needed. %u and %j |
5021 | require one. */ | |
49009afd | 5022 | if (t == 0 || c == 'u' || c == 'j') |
fb266030 TW |
5023 | { |
5024 | if (t == 0) | |
5025 | { | |
e1e4cdc4 | 5026 | t = XNEW (struct temp_name); |
fb266030 TW |
5027 | t->next = temp_names; |
5028 | temp_names = t; | |
5029 | } | |
dd75c292 | 5030 | t->length = suffix_length; |
2297fdf1 TT |
5031 | if (saved_suffix) |
5032 | { | |
5033 | t->suffix = saved_suffix; | |
5034 | saved_suffix = NULL; | |
5035 | } | |
5036 | else | |
5037 | t->suffix = save_string (suffix, suffix_length); | |
95456d43 | 5038 | t->unique = (c == 'u' || c == 'U' || c == 'j'); |
dd75c292 | 5039 | temp_filename = make_temp_file (t->suffix); |
6aa62cff | 5040 | temp_filename_length = strlen (temp_filename); |
fb266030 TW |
5041 | t->filename = temp_filename; |
5042 | t->filename_length = temp_filename_length; | |
5043 | } | |
5044 | ||
04695783 | 5045 | free (saved_suffix); |
a1d9074c | 5046 | |
fb266030 | 5047 | obstack_grow (&obstack, t->filename, t->filename_length); |
b9490a6e | 5048 | delete_this_arg = 1; |
ed1f651b RS |
5049 | } |
5050 | arg_going = 1; | |
5051 | break; | |
5052 | ||
5053 | case 'i': | |
d1bd0ded GK |
5054 | if (combine_inputs) |
5055 | { | |
5a691e98 RAE |
5056 | if (at_file_supplied) |
5057 | { | |
5058 | /* We are going to expand `%i' to `@FILE', where FILE | |
5059 | is a newly-created temporary filename. The filenames | |
5060 | that would usually be expanded in place of %o will be | |
5061 | written to the temporary file. */ | |
5062 | char **argv; | |
5063 | int n_files = 0; | |
5064 | int j; | |
5065 | ||
5066 | for (i = 0; i < n_infiles; i++) | |
5067 | if (compile_input_file_p (&infiles[i])) | |
5068 | n_files++; | |
5069 | ||
5070 | argv = (char **) alloca (sizeof (char *) * (n_files + 1)); | |
5071 | ||
5072 | /* Copy the strings over. */ | |
5073 | for (i = 0, j = 0; i < n_infiles; i++) | |
5074 | if (compile_input_file_p (&infiles[i])) | |
5075 | { | |
5076 | argv[j] = CONST_CAST (char *, infiles[i].name); | |
5077 | infiles[i].compiled = true; | |
5078 | j++; | |
5079 | } | |
5080 | argv[j] = NULL; | |
5081 | ||
5082 | create_at_file (argv); | |
5083 | } | |
5084 | else | |
5085 | for (i = 0; (int) i < n_infiles; i++) | |
5086 | if (compile_input_file_p (&infiles[i])) | |
0855eab7 CT |
5087 | { |
5088 | store_arg (infiles[i].name, 0, 0); | |
5089 | infiles[i].compiled = true; | |
5090 | } | |
d1bd0ded GK |
5091 | } |
5092 | else | |
5093 | { | |
6afbc885 JM |
5094 | obstack_grow (&obstack, gcc_input_filename, |
5095 | input_filename_length); | |
d1bd0ded GK |
5096 | arg_going = 1; |
5097 | } | |
ed1f651b RS |
5098 | break; |
5099 | ||
8eebb258 | 5100 | case 'I': |
2d879387 | 5101 | { |
00dcee0c | 5102 | struct spec_path_info info; |
2d879387 | 5103 | |
2b6dd222 JM |
5104 | if (multilib_dir) |
5105 | { | |
5106 | do_spec_1 ("-imultilib", 1, NULL); | |
5107 | /* Make this a separate argument. */ | |
5108 | do_spec_1 (" ", 0, NULL); | |
5109 | do_spec_1 (multilib_dir, 1, NULL); | |
5110 | do_spec_1 (" ", 0, NULL); | |
5111 | } | |
5112 | ||
e0cdc09f MK |
5113 | if (multiarch_dir) |
5114 | { | |
5115 | do_spec_1 ("-imultiarch", 1, NULL); | |
5116 | /* Make this a separate argument. */ | |
5117 | do_spec_1 (" ", 0, NULL); | |
5118 | do_spec_1 (multiarch_dir, 1, NULL); | |
5119 | do_spec_1 (" ", 0, NULL); | |
5120 | } | |
5121 | ||
2d879387 JW |
5122 | if (gcc_exec_prefix) |
5123 | { | |
6496a589 | 5124 | do_spec_1 ("-iprefix", 1, NULL); |
2d879387 | 5125 | /* Make this a separate argument. */ |
6496a589 KG |
5126 | do_spec_1 (" ", 0, NULL); |
5127 | do_spec_1 (gcc_exec_prefix, 1, NULL); | |
5128 | do_spec_1 (" ", 0, NULL); | |
2d879387 JW |
5129 | } |
5130 | ||
e7f13528 GP |
5131 | if (target_system_root_changed || |
5132 | (target_system_root && target_sysroot_hdrs_suffix)) | |
047d636f DJ |
5133 | { |
5134 | do_spec_1 ("-isysroot", 1, NULL); | |
5135 | /* Make this a separate argument. */ | |
5136 | do_spec_1 (" ", 0, NULL); | |
5137 | do_spec_1 (target_system_root, 1, NULL); | |
e7f13528 GP |
5138 | if (target_sysroot_hdrs_suffix) |
5139 | do_spec_1 (target_sysroot_hdrs_suffix, 1, NULL); | |
047d636f DJ |
5140 | do_spec_1 (" ", 0, NULL); |
5141 | } | |
5142 | ||
00dcee0c AM |
5143 | info.option = "-isystem"; |
5144 | info.append = "include"; | |
5145 | info.append_len = strlen (info.append); | |
5146 | info.omit_relative = false; | |
5147 | info.separate_options = true; | |
5148 | ||
5149 | for_each_path (&include_prefixes, false, info.append_len, | |
5150 | spec_path, &info); | |
f686ec05 JM |
5151 | |
5152 | info.append = "include-fixed"; | |
14da6073 JM |
5153 | if (*sysroot_hdrs_suffix_spec) |
5154 | info.append = concat (info.append, dir_separator_str, | |
5155 | multilib_dir, NULL); | |
f686ec05 JM |
5156 | info.append_len = strlen (info.append); |
5157 | for_each_path (&include_prefixes, false, info.append_len, | |
5158 | spec_path, &info); | |
2d879387 | 5159 | } |
8eebb258 RS |
5160 | break; |
5161 | ||
ed1f651b | 5162 | case 'o': |
15c5edb9 TT |
5163 | { |
5164 | int max = n_infiles; | |
15c5edb9 | 5165 | max += lang_specific_extra_outfiles; |
08dc830e | 5166 | |
2091ff66 NF |
5167 | if (HAVE_GNU_LD && at_file_supplied) |
5168 | { | |
5169 | /* We are going to expand `%o' to `@FILE', where FILE | |
5170 | is a newly-created temporary filename. The filenames | |
5171 | that would usually be expanded in place of %o will be | |
5172 | written to the temporary file. */ | |
5173 | ||
2091ff66 | 5174 | char **argv; |
5a691e98 | 5175 | int n_files, j; |
2091ff66 NF |
5176 | |
5177 | /* Convert OUTFILES into a form suitable for writeargv. */ | |
5178 | ||
5179 | /* Determine how many are non-NULL. */ | |
5180 | for (n_files = 0, i = 0; i < max; i++) | |
5181 | n_files += outfiles[i] != NULL; | |
5182 | ||
e1e4cdc4 | 5183 | argv = (char **) alloca (sizeof (char *) * (n_files + 1)); |
2091ff66 NF |
5184 | |
5185 | /* Copy the strings over. */ | |
5186 | for (i = 0, j = 0; i < max; i++) | |
5187 | if (outfiles[i]) | |
5188 | { | |
b1d5455a | 5189 | argv[j] = CONST_CAST (char *, outfiles[i]); |
2091ff66 NF |
5190 | j++; |
5191 | } | |
5192 | argv[j] = NULL; | |
5193 | ||
5a691e98 | 5194 | create_at_file (argv); |
2091ff66 NF |
5195 | } |
5196 | else | |
5197 | for (i = 0; i < max; i++) | |
5198 | if (outfiles[i]) | |
5199 | store_arg (outfiles[i], 0, 0); | |
15c5edb9 TT |
5200 | break; |
5201 | } | |
ed1f651b | 5202 | |
ed7dae04 | 5203 | case 'O': |
45936a85 | 5204 | obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX)); |
ed7dae04 RK |
5205 | arg_going = 1; |
5206 | break; | |
5207 | ||
ed1f651b RS |
5208 | case 's': |
5209 | this_is_library_file = 1; | |
5210 | break; | |
5211 | ||
3beb864c NC |
5212 | case 'T': |
5213 | this_is_linker_script = 1; | |
5214 | break; | |
5215 | ||
17211ab5 GK |
5216 | case 'V': |
5217 | outfiles[input_file_number] = NULL; | |
5218 | break; | |
5219 | ||
ed1f651b RS |
5220 | case 'w': |
5221 | this_is_output_file = 1; | |
5222 | break; | |
5223 | ||
5224 | case 'W': | |
5225 | { | |
9771b263 | 5226 | unsigned int cur_index = argbuf.length (); |
ed1f651b RS |
5227 | /* Handle the {...} following the %W. */ |
5228 | if (*p != '{') | |
bdc6b402 | 5229 | fatal_error ("spec %qs has invalid %<%%W%c%>", spec, *p); |
ed1f651b RS |
5230 | p = handle_braces (p + 1); |
5231 | if (p == 0) | |
5232 | return -1; | |
13e7cedb | 5233 | end_going_arg (); |
ed1f651b RS |
5234 | /* If any args were output, mark the last one for deletion |
5235 | on failure. */ | |
9771b263 DN |
5236 | if (argbuf.length () != cur_index) |
5237 | record_temp_file (argbuf.last (), 0, 1); | |
ed1f651b RS |
5238 | break; |
5239 | } | |
5240 | ||
5241 | /* %x{OPTION} records OPTION for %X to output. */ | |
5242 | case 'x': | |
5243 | { | |
878f32c3 | 5244 | const char *p1 = p; |
ed1f651b | 5245 | char *string; |
69d540bd NF |
5246 | char *opt; |
5247 | unsigned ix; | |
ed1f651b RS |
5248 | |
5249 | /* Skip past the option value and make a copy. */ | |
5250 | if (*p != '{') | |
bdc6b402 | 5251 | fatal_error ("spec %qs has invalid %<%%x%c%>", spec, *p); |
ed1f651b RS |
5252 | while (*p++ != '}') |
5253 | ; | |
5254 | string = save_string (p1 + 1, p - p1 - 2); | |
5255 | ||
5256 | /* See if we already recorded this option. */ | |
9771b263 | 5257 | FOR_EACH_VEC_ELT (linker_options, ix, opt) |
69d540bd | 5258 | if (! strcmp (string, opt)) |
ed1f651b RS |
5259 | { |
5260 | free (string); | |
5261 | return 0; | |
5262 | } | |
5263 | ||
5264 | /* This option is new; add it. */ | |
b8468bc7 | 5265 | add_linker_option (string, strlen (string)); |
fc429b48 | 5266 | free (string); |
ed1f651b RS |
5267 | } |
5268 | break; | |
5269 | ||
368dfd3a | 5270 | /* Dump out the options accumulated previously using %x. */ |
ed1f651b | 5271 | case 'X': |
69d540bd | 5272 | do_specs_vec (linker_options); |
ed1f651b RS |
5273 | break; |
5274 | ||
c9ebacb8 RS |
5275 | /* Dump out the options accumulated previously using -Wa,. */ |
5276 | case 'Y': | |
69d540bd | 5277 | do_specs_vec (assembler_options); |
c9ebacb8 RS |
5278 | break; |
5279 | ||
57cb9b60 JW |
5280 | /* Dump out the options accumulated previously using -Wp,. */ |
5281 | case 'Z': | |
69d540bd | 5282 | do_specs_vec (preprocessor_options); |
57cb9b60 JW |
5283 | break; |
5284 | ||
ed1f651b RS |
5285 | /* Here are digits and numbers that just process |
5286 | a certain constant string as a spec. */ | |
5287 | ||
5288 | case '1': | |
6496a589 | 5289 | value = do_spec_1 (cc1_spec, 0, NULL); |
3279bba6 RS |
5290 | if (value != 0) |
5291 | return value; | |
ed1f651b RS |
5292 | break; |
5293 | ||
5294 | case '2': | |
6496a589 | 5295 | value = do_spec_1 (cc1plus_spec, 0, NULL); |
3279bba6 RS |
5296 | if (value != 0) |
5297 | return value; | |
ed1f651b RS |
5298 | break; |
5299 | ||
5300 | case 'a': | |
6496a589 | 5301 | value = do_spec_1 (asm_spec, 0, NULL); |
3279bba6 RS |
5302 | if (value != 0) |
5303 | return value; | |
ed1f651b RS |
5304 | break; |
5305 | ||
5306 | case 'A': | |
6496a589 | 5307 | value = do_spec_1 (asm_final_spec, 0, NULL); |
3279bba6 RS |
5308 | if (value != 0) |
5309 | return value; | |
ed1f651b RS |
5310 | break; |
5311 | ||
ed1f651b | 5312 | case 'C': |
a9374841 | 5313 | { |
83182544 | 5314 | const char *const spec |
589005ff KH |
5315 | = (input_file_compiler->cpp_spec |
5316 | ? input_file_compiler->cpp_spec | |
a9374841 | 5317 | : cpp_spec); |
6496a589 | 5318 | value = do_spec_1 (spec, 0, NULL); |
a9374841 MM |
5319 | if (value != 0) |
5320 | return value; | |
5321 | } | |
ed1f651b RS |
5322 | break; |
5323 | ||
5324 | case 'E': | |
6496a589 | 5325 | value = do_spec_1 (endfile_spec, 0, NULL); |
3279bba6 RS |
5326 | if (value != 0) |
5327 | return value; | |
ed1f651b RS |
5328 | break; |
5329 | ||
5330 | case 'l': | |
6496a589 | 5331 | value = do_spec_1 (link_spec, 0, NULL); |
3279bba6 RS |
5332 | if (value != 0) |
5333 | return value; | |
ed1f651b RS |
5334 | break; |
5335 | ||
5336 | case 'L': | |
6496a589 | 5337 | value = do_spec_1 (lib_spec, 0, NULL); |
3279bba6 RS |
5338 | if (value != 0) |
5339 | return value; | |
ed1f651b RS |
5340 | break; |
5341 | ||
3cd50158 SD |
5342 | case 'M': |
5343 | if (multilib_os_dir == NULL) | |
5344 | obstack_1grow (&obstack, '.'); | |
5345 | else | |
5346 | obstack_grow (&obstack, multilib_os_dir, | |
5347 | strlen (multilib_os_dir)); | |
5348 | break; | |
5349 | ||
68d69835 | 5350 | case 'G': |
6496a589 | 5351 | value = do_spec_1 (libgcc_spec, 0, NULL); |
68d69835 JM |
5352 | if (value != 0) |
5353 | return value; | |
5354 | break; | |
5355 | ||
4977bab6 ZW |
5356 | case 'R': |
5357 | /* We assume there is a directory | |
5358 | separator at the end of this string. */ | |
5359 | if (target_system_root) | |
1d088dee AJ |
5360 | { |
5361 | obstack_grow (&obstack, target_system_root, | |
e7f13528 GP |
5362 | strlen (target_system_root)); |
5363 | if (target_sysroot_suffix) | |
1d088dee | 5364 | obstack_grow (&obstack, target_sysroot_suffix, |
e7f13528 GP |
5365 | strlen (target_sysroot_suffix)); |
5366 | } | |
4977bab6 ZW |
5367 | break; |
5368 | ||
ed1f651b | 5369 | case 'S': |
6496a589 | 5370 | value = do_spec_1 (startfile_spec, 0, NULL); |
3279bba6 RS |
5371 | if (value != 0) |
5372 | return value; | |
ed1f651b RS |
5373 | break; |
5374 | ||
5375 | /* Here we define characters other than letters and digits. */ | |
5376 | ||
5377 | case '{': | |
5378 | p = handle_braces (p); | |
5379 | if (p == 0) | |
5380 | return -1; | |
5381 | break; | |
5382 | ||
f3226a90 | 5383 | case ':': |
de5a5fa1 | 5384 | p = handle_spec_function (p, NULL); |
f3226a90 JT |
5385 | if (p == 0) |
5386 | return -1; | |
5387 | break; | |
5388 | ||
ed1f651b RS |
5389 | case '%': |
5390 | obstack_1grow (&obstack, '%'); | |
5391 | break; | |
5392 | ||
589005ff KH |
5393 | case '.': |
5394 | { | |
5395 | unsigned len = 0; | |
11972f66 | 5396 | |
589005ff KH |
5397 | while (p[len] && p[len] != ' ' && p[len] != '%') |
5398 | len++; | |
5399 | suffix_subst = save_string (p - 1, len + 1); | |
5400 | p += len; | |
5401 | } | |
11972f66 | 5402 | break; |
589005ff | 5403 | |
4977bab6 ZW |
5404 | /* Henceforth ignore the option(s) matching the pattern |
5405 | after the %<. */ | |
5406 | case '<': | |
96f5b137 | 5407 | case '>': |
4977bab6 ZW |
5408 | { |
5409 | unsigned len = 0; | |
5410 | int have_wildcard = 0; | |
5411 | int i; | |
96f5b137 L |
5412 | int switch_option; |
5413 | ||
5414 | if (c == '>') | |
5415 | switch_option = SWITCH_IGNORE | SWITCH_KEEP_FOR_GCC; | |
5416 | else | |
5417 | switch_option = SWITCH_IGNORE; | |
4977bab6 ZW |
5418 | |
5419 | while (p[len] && p[len] != ' ' && p[len] != '\t') | |
5420 | len++; | |
5421 | ||
5422 | if (p[len-1] == '*') | |
5423 | have_wildcard = 1; | |
5424 | ||
5425 | for (i = 0; i < n_switches; i++) | |
5426 | if (!strncmp (switches[i].part1, p, len - have_wildcard) | |
5427 | && (have_wildcard || switches[i].part1[len] == '\0')) | |
5428 | { | |
96f5b137 | 5429 | switches[i].live_cond |= switch_option; |
d168aaee CB |
5430 | /* User switch be validated from validate_all_switches. |
5431 | when the definition is seen from the spec file. | |
5432 | If not defined anywhere, will be rejected. */ | |
5433 | if (switches[i].known) | |
5434 | switches[i].validated = true; | |
4977bab6 ZW |
5435 | } |
5436 | ||
5437 | p += len; | |
5438 | } | |
5439 | break; | |
5440 | ||
ed1f651b | 5441 | case '*': |
3ac63d94 NC |
5442 | if (soft_matched_part) |
5443 | { | |
7fcf46f5 JZ |
5444 | if (soft_matched_part[0]) |
5445 | do_spec_1 (soft_matched_part, 1, NULL); | |
25990163 NC |
5446 | /* Only insert a space after the substitution if it is at the |
5447 | end of the current sequence. So if: | |
5448 | ||
5449 | "%{foo=*:bar%*}%{foo=*:one%*two}" | |
5450 | ||
5451 | matches -foo=hello then it will produce: | |
5452 | ||
5453 | barhello onehellotwo | |
5454 | */ | |
5455 | if (*p == 0 || *p == '}') | |
5456 | do_spec_1 (" ", 0, NULL); | |
3ac63d94 NC |
5457 | } |
5458 | else | |
5459 | /* Catch the case where a spec string contains something like | |
454ff5cb | 5460 | '%{foo:%*}'. i.e. there is no * in the pattern on the left |
3ac63d94 | 5461 | hand side of the :. */ |
bdc6b402 | 5462 | error ("spec failure: %<%%*%> has not been initialized by pattern match"); |
ed1f651b RS |
5463 | break; |
5464 | ||
5465 | /* Process a string found as the value of a spec given by name. | |
5466 | This feature allows individual machine descriptions | |
3ce9f090 | 5467 | to add and use their own specs. */ |
ed1f651b | 5468 | case '(': |
ed1f651b | 5469 | { |
878f32c3 | 5470 | const char *name = p; |
ed1f651b RS |
5471 | struct spec_list *sl; |
5472 | int len; | |
5473 | ||
5474 | /* The string after the S/P is the name of a spec that is to be | |
0f41302f | 5475 | processed. */ |
3ce9f090 | 5476 | while (*p && *p != ')') |
ed1f651b RS |
5477 | p++; |
5478 | ||
3ac63d94 | 5479 | /* See if it's in the list. */ |
ed1f651b | 5480 | for (len = p - name, sl = specs; sl; sl = sl->next) |
79aff5ac | 5481 | if (sl->name_len == len && !strncmp (sl->name, name, len)) |
ed1f651b | 5482 | { |
79aff5ac | 5483 | name = *(sl->ptr_spec); |
20df0482 | 5484 | #ifdef DEBUG_SPECS |
3ce9f090 JM |
5485 | fnotice (stderr, "Processing spec (%s), which is '%s'\n", |
5486 | sl->name, name); | |
20df0482 | 5487 | #endif |
ed1f651b RS |
5488 | break; |
5489 | } | |
5490 | ||
5491 | if (sl) | |
5492 | { | |
3ce9f090 JM |
5493 | value = do_spec_1 (name, 0, NULL); |
5494 | if (value != 0) | |
5495 | return value; | |
ed1f651b | 5496 | } |
b3865ca9 | 5497 | |
3ce9f090 | 5498 | /* Discard the closing paren. */ |
b3865ca9 RS |
5499 | if (*p) |
5500 | p++; | |
ed1f651b RS |
5501 | } |
5502 | break; | |
5503 | ||
5504 | default: | |
bdc6b402 | 5505 | error ("spec failure: unrecognized spec option %qc", c); |
3ac63d94 | 5506 | break; |
ed1f651b RS |
5507 | } |
5508 | break; | |
5509 | ||
5510 | case '\\': | |
5511 | /* Backslash: treat next character as ordinary. */ | |
5512 | c = *p++; | |
5513 | ||
938d968e | 5514 | /* Fall through. */ |
ed1f651b RS |
5515 | default: |
5516 | /* Ordinary character: put it into the current argument. */ | |
5517 | obstack_1grow (&obstack, c); | |
5518 | arg_going = 1; | |
5519 | } | |
5520 | ||
f3226a90 JT |
5521 | /* End of string. If we are processing a spec function, we need to |
5522 | end any pending argument. */ | |
13e7cedb DH |
5523 | if (processing_spec_function) |
5524 | end_going_arg (); | |
f3226a90 | 5525 | |
d25a45d4 | 5526 | return 0; |
ed1f651b RS |
5527 | } |
5528 | ||
f3226a90 JT |
5529 | /* Look up a spec function. */ |
5530 | ||
5531 | static const struct spec_function * | |
1d088dee | 5532 | lookup_spec_function (const char *name) |
f3226a90 | 5533 | { |
f3226a90 | 5534 | const struct spec_function *sf; |
f3226a90 | 5535 | |
4c360e1f RE |
5536 | for (sf = static_spec_functions; sf->name != NULL; sf++) |
5537 | if (strcmp (sf->name, name) == 0) | |
5538 | return sf; | |
f3226a90 JT |
5539 | |
5540 | return NULL; | |
5541 | } | |
5542 | ||
5543 | /* Evaluate a spec function. */ | |
5544 | ||
5545 | static const char * | |
1d088dee | 5546 | eval_spec_function (const char *func, const char *args) |
f3226a90 JT |
5547 | { |
5548 | const struct spec_function *sf; | |
5549 | const char *funcval; | |
5550 | ||
5551 | /* Saved spec processing context. */ | |
9771b263 | 5552 | vec<const_char_p> save_argbuf; |
f3226a90 JT |
5553 | |
5554 | int save_arg_going; | |
5555 | int save_delete_this_arg; | |
5556 | int save_this_is_output_file; | |
5557 | int save_this_is_library_file; | |
5558 | int save_input_from_pipe; | |
3beb864c | 5559 | int save_this_is_linker_script; |
f3226a90 JT |
5560 | const char *save_suffix_subst; |
5561 | ||
b50ff8bb | 5562 | int save_growing_size; |
f87604f8 | 5563 | void *save_growing_value = NULL; |
f3226a90 JT |
5564 | |
5565 | sf = lookup_spec_function (func); | |
5566 | if (sf == NULL) | |
bdc6b402 | 5567 | fatal_error ("unknown spec function %qs", func); |
f3226a90 JT |
5568 | |
5569 | /* Push the spec processing context. */ | |
f3226a90 JT |
5570 | save_argbuf = argbuf; |
5571 | ||
5572 | save_arg_going = arg_going; | |
5573 | save_delete_this_arg = delete_this_arg; | |
5574 | save_this_is_output_file = this_is_output_file; | |
5575 | save_this_is_library_file = this_is_library_file; | |
3beb864c | 5576 | save_this_is_linker_script = this_is_linker_script; |
f3226a90 JT |
5577 | save_input_from_pipe = input_from_pipe; |
5578 | save_suffix_subst = suffix_subst; | |
5579 | ||
b50ff8bb OH |
5580 | /* If we have some object growing now, finalize it so the args and function |
5581 | eval proceed from a cleared context. This is needed to prevent the first | |
5582 | constructed arg from mistakenly including the growing value. We'll push | |
5583 | this value back on the obstack once the function evaluation is done, to | |
5584 | restore a consistent processing context for our caller. This is fine as | |
5585 | the address of growing objects isn't guaranteed to remain stable until | |
5586 | they are finalized, and we expect this situation to be rare enough for | |
5587 | the extra copy not to be an issue. */ | |
5588 | save_growing_size = obstack_object_size (&obstack); | |
5589 | if (save_growing_size > 0) | |
5590 | save_growing_value = obstack_finish (&obstack); | |
5591 | ||
f3226a90 JT |
5592 | /* Create a new spec processing context, and build the function |
5593 | arguments. */ | |
5594 | ||
5595 | alloc_args (); | |
5596 | if (do_spec_2 (args) < 0) | |
bdc6b402 | 5597 | fatal_error ("error in args to spec function %qs", func); |
f3226a90 JT |
5598 | |
5599 | /* argbuf_index is an index for the next argument to be inserted, and | |
5600 | so contains the count of the args already inserted. */ | |
5601 | ||
9771b263 DN |
5602 | funcval = (*sf->func) (argbuf.length (), |
5603 | argbuf.address ()); | |
f3226a90 JT |
5604 | |
5605 | /* Pop the spec processing context. */ | |
9771b263 | 5606 | argbuf.release (); |
f3226a90 JT |
5607 | argbuf = save_argbuf; |
5608 | ||
5609 | arg_going = save_arg_going; | |
5610 | delete_this_arg = save_delete_this_arg; | |
5611 | this_is_output_file = save_this_is_output_file; | |
5612 | this_is_library_file = save_this_is_library_file; | |
3beb864c | 5613 | this_is_linker_script = save_this_is_linker_script; |
f3226a90 JT |
5614 | input_from_pipe = save_input_from_pipe; |
5615 | suffix_subst = save_suffix_subst; | |
5616 | ||
b50ff8bb OH |
5617 | if (save_growing_size > 0) |
5618 | obstack_grow (&obstack, save_growing_value, save_growing_size); | |
5619 | ||
f3226a90 JT |
5620 | return funcval; |
5621 | } | |
5622 | ||
5623 | /* Handle a spec function call of the form: | |
5624 | ||
5625 | %:function(args) | |
5626 | ||
5627 | ARGS is processed as a spec in a separate context and split into an | |
5628 | argument vector in the normal fashion. The function returns a string | |
5629 | containing a spec which we then process in the caller's context, or | |
de5a5fa1 MP |
5630 | NULL if no processing is required. |
5631 | ||
5632 | If RETVAL_NONNULL is not NULL, then store a bool whether function | |
5633 | returned non-NULL. */ | |
f3226a90 JT |
5634 | |
5635 | static const char * | |
de5a5fa1 | 5636 | handle_spec_function (const char *p, bool *retval_nonnull) |
f3226a90 JT |
5637 | { |
5638 | char *func, *args; | |
5639 | const char *endp, *funcval; | |
5640 | int count; | |
5641 | ||
5642 | processing_spec_function++; | |
5643 | ||
5644 | /* Get the function name. */ | |
5645 | for (endp = p; *endp != '\0'; endp++) | |
5646 | { | |
5647 | if (*endp == '(') /* ) */ | |
5648 | break; | |
5649 | /* Only allow [A-Za-z0-9], -, and _ in function names. */ | |
5650 | if (!ISALNUM (*endp) && !(*endp == '-' || *endp == '_')) | |
2dec80c7 | 5651 | fatal_error ("malformed spec function name"); |
f3226a90 JT |
5652 | } |
5653 | if (*endp != '(') /* ) */ | |
2dec80c7 | 5654 | fatal_error ("no arguments for spec function"); |
f3226a90 JT |
5655 | func = save_string (p, endp - p); |
5656 | p = ++endp; | |
5657 | ||
5658 | /* Get the arguments. */ | |
5659 | for (count = 0; *endp != '\0'; endp++) | |
5660 | { | |
5661 | /* ( */ | |
5662 | if (*endp == ')') | |
5663 | { | |
5664 | if (count == 0) | |
5665 | break; | |
5666 | count--; | |
5667 | } | |
5668 | else if (*endp == '(') /* ) */ | |
5669 | count++; | |
5670 | } | |
5671 | /* ( */ | |
5672 | if (*endp != ')') | |
2dec80c7 | 5673 | fatal_error ("malformed spec function arguments"); |
f3226a90 JT |
5674 | args = save_string (p, endp - p); |
5675 | p = ++endp; | |
5676 | ||
5677 | /* p now points to just past the end of the spec function expression. */ | |
5678 | ||
5679 | funcval = eval_spec_function (func, args); | |
5680 | if (funcval != NULL && do_spec_1 (funcval, 0, NULL) < 0) | |
5681 | p = NULL; | |
de5a5fa1 MP |
5682 | if (retval_nonnull) |
5683 | *retval_nonnull = funcval != NULL; | |
f3226a90 JT |
5684 | |
5685 | free (func); | |
5686 | free (args); | |
5687 | ||
5688 | processing_spec_function--; | |
5689 | ||
5690 | return p; | |
5691 | } | |
5692 | ||
4977bab6 ZW |
5693 | /* Inline subroutine of handle_braces. Returns true if the current |
5694 | input suffix matches the atom bracketed by ATOM and END_ATOM. */ | |
5695 | static inline bool | |
1d088dee | 5696 | input_suffix_matches (const char *atom, const char *end_atom) |
4977bab6 ZW |
5697 | { |
5698 | return (input_suffix | |
5699 | && !strncmp (input_suffix, atom, end_atom - atom) | |
5700 | && input_suffix[end_atom - atom] == '\0'); | |
5701 | } | |
ed1f651b | 5702 | |
48137d59 GK |
5703 | /* Subroutine of handle_braces. Returns true if the current |
5704 | input file's spec name matches the atom bracketed by ATOM and END_ATOM. */ | |
5705 | static bool | |
5706 | input_spec_matches (const char *atom, const char *end_atom) | |
5707 | { | |
5708 | return (input_file_compiler | |
5709 | && input_file_compiler->suffix | |
5710 | && input_file_compiler->suffix[0] != '\0' | |
5711 | && !strncmp (input_file_compiler->suffix + 1, atom, | |
5712 | end_atom - atom) | |
5713 | && input_file_compiler->suffix[end_atom - atom + 1] == '\0'); | |
5714 | } | |
5715 | ||
953ff289 | 5716 | /* Subroutine of handle_braces. Returns true if a switch |
4977bab6 ZW |
5717 | matching the atom bracketed by ATOM and END_ATOM appeared on the |
5718 | command line. */ | |
953ff289 | 5719 | static bool |
1d088dee | 5720 | switch_matches (const char *atom, const char *end_atom, int starred) |
ed1f651b | 5721 | { |
4977bab6 ZW |
5722 | int i; |
5723 | int len = end_atom - atom; | |
5724 | int plen = starred ? len : -1; | |
ed1f651b | 5725 | |
4977bab6 ZW |
5726 | for (i = 0; i < n_switches; i++) |
5727 | if (!strncmp (switches[i].part1, atom, len) | |
5728 | && (starred || switches[i].part1[len] == '\0') | |
5729 | && check_live_switch (i, plen)) | |
5730 | return true; | |
8097c429 | 5731 | |
5371f719 MG |
5732 | /* Check if a switch with separated form matching the atom. |
5733 | We check -D and -U switches. */ | |
5734 | else if (switches[i].args != 0) | |
5735 | { | |
5736 | if ((*switches[i].part1 == 'D' || *switches[i].part1 == 'U') | |
5737 | && *switches[i].part1 == atom[0]) | |
5738 | { | |
5739 | if (!strncmp (switches[i].args[0], &atom[1], len - 1) | |
5740 | && (starred || (switches[i].part1[1] == '\0' | |
5741 | && switches[i].args[0][len - 1] == '\0')) | |
5742 | && check_live_switch (i, (starred ? 1 : -1))) | |
5743 | return true; | |
5744 | } | |
5745 | } | |
5746 | ||
4977bab6 ZW |
5747 | return false; |
5748 | } | |
ed1f651b | 5749 | |
4977bab6 ZW |
5750 | /* Inline subroutine of handle_braces. Mark all of the switches which |
5751 | match ATOM (extends to END_ATOM; STARRED indicates whether there | |
5752 | was a star after the atom) for later processing. */ | |
5753 | static inline void | |
1d088dee | 5754 | mark_matching_switches (const char *atom, const char *end_atom, int starred) |
4977bab6 ZW |
5755 | { |
5756 | int i; | |
5757 | int len = end_atom - atom; | |
5758 | int plen = starred ? len : -1; | |
5759 | ||
5760 | for (i = 0; i < n_switches; i++) | |
5761 | if (!strncmp (switches[i].part1, atom, len) | |
5762 | && (starred || switches[i].part1[len] == '\0') | |
5763 | && check_live_switch (i, plen)) | |
5764 | switches[i].ordering = 1; | |
5765 | } | |
9bf09437 | 5766 | |
4977bab6 ZW |
5767 | /* Inline subroutine of handle_braces. Process all the currently |
5768 | marked switches through give_switch, and clear the marks. */ | |
5769 | static inline void | |
1d088dee | 5770 | process_marked_switches (void) |
4977bab6 ZW |
5771 | { |
5772 | int i; | |
ed1f651b | 5773 | |
4977bab6 ZW |
5774 | for (i = 0; i < n_switches; i++) |
5775 | if (switches[i].ordering == 1) | |
5776 | { | |
5777 | switches[i].ordering = 0; | |
5778 | give_switch (i, 0); | |
5779 | } | |
5780 | } | |
ed1f651b | 5781 | |
4977bab6 ZW |
5782 | /* Handle a %{ ... } construct. P points just inside the leading {. |
5783 | Returns a pointer one past the end of the brace block, or 0 | |
5784 | if we call do_spec_1 and that returns -1. */ | |
ed1f651b | 5785 | |
4977bab6 | 5786 | static const char * |
1d088dee | 5787 | handle_braces (const char *p) |
4977bab6 ZW |
5788 | { |
5789 | const char *atom, *end_atom; | |
5790 | const char *d_atom = NULL, *d_end_atom = NULL; | |
3b5edfee | 5791 | const char *orig = p; |
8097c429 | 5792 | |
4977bab6 | 5793 | bool a_is_suffix; |
48137d59 | 5794 | bool a_is_spectype; |
4977bab6 ZW |
5795 | bool a_is_starred; |
5796 | bool a_is_negated; | |
5797 | bool a_matched; | |
9bf09437 | 5798 | |
4977bab6 ZW |
5799 | bool a_must_be_last = false; |
5800 | bool ordered_set = false; | |
5801 | bool disjunct_set = false; | |
5802 | bool disj_matched = false; | |
5803 | bool disj_starred = true; | |
5804 | bool n_way_choice = false; | |
5805 | bool n_way_matched = false; | |
5806 | ||
5807 | #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0) | |
9bf09437 | 5808 | |
4977bab6 | 5809 | do |
ed1f651b | 5810 | { |
4977bab6 | 5811 | if (a_must_be_last) |
3b5edfee | 5812 | goto invalid; |
9bf09437 | 5813 | |
4977bab6 | 5814 | /* Scan one "atom" (S in the description above of %{}, possibly |
48137d59 GK |
5815 | with '!', '.', '@', ',', or '*' modifiers). */ |
5816 | a_matched = false; | |
5817 | a_is_suffix = false; | |
5818 | a_is_starred = false; | |
5819 | a_is_negated = false; | |
5820 | a_is_spectype = false; | |
9218435e | 5821 | |
c3284718 | 5822 | SKIP_WHITE (); |
4977bab6 ZW |
5823 | if (*p == '!') |
5824 | p++, a_is_negated = true; | |
ed1f651b | 5825 | |
c3284718 | 5826 | SKIP_WHITE (); |
de5a5fa1 MP |
5827 | if (*p == '%' && p[1] == ':') |
5828 | { | |
5829 | atom = NULL; | |
5830 | end_atom = NULL; | |
5831 | p = handle_spec_function (p + 2, &a_matched); | |
5832 | } | |
5833 | else | |
5834 | { | |
5835 | if (*p == '.') | |
5836 | p++, a_is_suffix = true; | |
5837 | else if (*p == ',') | |
5838 | p++, a_is_spectype = true; | |
5839 | ||
5840 | atom = p; | |
c3284718 | 5841 | while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '=' |
de5a5fa1 MP |
5842 | || *p == ',' || *p == '.' || *p == '@') |
5843 | p++; | |
5844 | end_atom = p; | |
ed1f651b | 5845 | |
de5a5fa1 MP |
5846 | if (*p == '*') |
5847 | p++, a_is_starred = 1; | |
5848 | } | |
196a37f4 | 5849 | |
c3284718 | 5850 | SKIP_WHITE (); |
3b5edfee | 5851 | switch (*p) |
4977bab6 | 5852 | { |
3b5edfee | 5853 | case '&': case '}': |
4977bab6 ZW |
5854 | /* Substitute the switch(es) indicated by the current atom. */ |
5855 | ordered_set = true; | |
5856 | if (disjunct_set || n_way_choice || a_is_negated || a_is_suffix | |
48137d59 | 5857 | || a_is_spectype || atom == end_atom) |
3b5edfee | 5858 | goto invalid; |
ed1f651b | 5859 | |
4977bab6 ZW |
5860 | mark_matching_switches (atom, end_atom, a_is_starred); |
5861 | ||
5862 | if (*p == '}') | |
5863 | process_marked_switches (); | |
3b5edfee NS |
5864 | break; |
5865 | ||
5866 | case '|': case ':': | |
4977bab6 ZW |
5867 | /* Substitute some text if the current atom appears as a switch |
5868 | or suffix. */ | |
5869 | disjunct_set = true; | |
5870 | if (ordered_set) | |
3b5edfee | 5871 | goto invalid; |
ed1f651b | 5872 | |
de5a5fa1 | 5873 | if (atom && atom == end_atom) |
ed1f651b | 5874 | { |
4977bab6 | 5875 | if (!n_way_choice || disj_matched || *p == '|' |
b8698a0f | 5876 | || a_is_negated || a_is_suffix || a_is_spectype |
48137d59 | 5877 | || a_is_starred) |
3b5edfee | 5878 | goto invalid; |
4977bab6 ZW |
5879 | |
5880 | /* An empty term may appear as the last choice of an | |
5881 | N-way choice set; it means "otherwise". */ | |
5882 | a_must_be_last = true; | |
5883 | disj_matched = !n_way_matched; | |
5884 | disj_starred = false; | |
ed1f651b | 5885 | } |
4977bab6 | 5886 | else |
ed1f651b | 5887 | { |
48137d59 GK |
5888 | if ((a_is_suffix || a_is_spectype) && a_is_starred) |
5889 | goto invalid; | |
3beb864c | 5890 | |
48137d59 GK |
5891 | if (!a_is_starred) |
5892 | disj_starred = false; | |
5893 | ||
5894 | /* Don't bother testing this atom if we already have a | |
5895 | match. */ | |
5896 | if (!disj_matched && !n_way_matched) | |
5897 | { | |
de5a5fa1 MP |
5898 | if (atom == NULL) |
5899 | /* a_matched is already set by handle_spec_function. */; | |
5900 | else if (a_is_suffix) | |
48137d59 GK |
5901 | a_matched = input_suffix_matches (atom, end_atom); |
5902 | else if (a_is_spectype) | |
5903 | a_matched = input_spec_matches (atom, end_atom); | |
5904 | else | |
5905 | a_matched = switch_matches (atom, end_atom, a_is_starred); | |
3beb864c | 5906 | |
48137d59 GK |
5907 | if (a_matched != a_is_negated) |
5908 | { | |
5909 | disj_matched = true; | |
5910 | d_atom = atom; | |
5911 | d_end_atom = end_atom; | |
5912 | } | |
5913 | } | |
ed1f651b | 5914 | } |
ed1f651b | 5915 | |
4977bab6 | 5916 | if (*p == ':') |
ed1f651b | 5917 | { |
4977bab6 ZW |
5918 | /* Found the body, that is, the text to substitute if the |
5919 | current disjunction matches. */ | |
5920 | p = process_brace_body (p + 1, d_atom, d_end_atom, disj_starred, | |
5921 | disj_matched && !n_way_matched); | |
5922 | if (p == 0) | |
5923 | return 0; | |
ed1f651b | 5924 | |
4977bab6 ZW |
5925 | /* If we have an N-way choice, reset state for the next |
5926 | disjunction. */ | |
5927 | if (*p == ';') | |
ed1f651b | 5928 | { |
4977bab6 ZW |
5929 | n_way_choice = true; |
5930 | n_way_matched |= disj_matched; | |
5931 | disj_matched = false; | |
5932 | disj_starred = true; | |
5933 | d_atom = d_end_atom = NULL; | |
ed1f651b RS |
5934 | } |
5935 | } | |
3b5edfee NS |
5936 | break; |
5937 | ||
5938 | default: | |
5939 | goto invalid; | |
ed1f651b | 5940 | } |
4977bab6 ZW |
5941 | } |
5942 | while (*p++ != '}'); | |
ed1f651b | 5943 | |
4977bab6 | 5944 | return p; |
7904f95f | 5945 | |
3b5edfee | 5946 | invalid: |
bdc6b402 | 5947 | fatal_error ("braced spec %qs is invalid at %qc", orig, *p); |
7904f95f | 5948 | |
4977bab6 ZW |
5949 | #undef SKIP_WHITE |
5950 | } | |
5951 | ||
5952 | /* Subroutine of handle_braces. Scan and process a brace substitution body | |
5953 | (X in the description of %{} syntax). P points one past the colon; | |
5954 | ATOM and END_ATOM bracket the first atom which was found to be true | |
5955 | (present) in the current disjunction; STARRED indicates whether all | |
5956 | the atoms in the current disjunction were starred (for syntax validation); | |
5957 | MATCHED indicates whether the disjunction matched or not, and therefore | |
5958 | whether or not the body is to be processed through do_spec_1 or just | |
5959 | skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1 | |
5960 | returns -1. */ | |
5961 | ||
5962 | static const char * | |
1d088dee AJ |
5963 | process_brace_body (const char *p, const char *atom, const char *end_atom, |
5964 | int starred, int matched) | |
4977bab6 ZW |
5965 | { |
5966 | const char *body, *end_body; | |
5967 | unsigned int nesting_level; | |
5968 | bool have_subst = false; | |
5969 | ||
5970 | /* Locate the closing } or ;, honoring nested braces. | |
5971 | Trim trailing whitespace. */ | |
5972 | body = p; | |
5973 | nesting_level = 1; | |
5974 | for (;;) | |
5975 | { | |
5976 | if (*p == '{') | |
5977 | nesting_level++; | |
5978 | else if (*p == '}') | |
ed1f651b | 5979 | { |
4977bab6 ZW |
5980 | if (!--nesting_level) |
5981 | break; | |
ed1f651b | 5982 | } |
4977bab6 ZW |
5983 | else if (*p == ';' && nesting_level == 1) |
5984 | break; | |
5985 | else if (*p == '%' && p[1] == '*' && nesting_level == 1) | |
5986 | have_subst = true; | |
5987 | else if (*p == '\0') | |
3b5edfee | 5988 | goto invalid; |
4977bab6 | 5989 | p++; |
ed1f651b | 5990 | } |
1d088dee | 5991 | |
4977bab6 ZW |
5992 | end_body = p; |
5993 | while (end_body[-1] == ' ' || end_body[-1] == '\t') | |
5994 | end_body--; | |
ed1f651b | 5995 | |
4977bab6 | 5996 | if (have_subst && !starred) |
3b5edfee | 5997 | goto invalid; |
9bf09437 | 5998 | |
4977bab6 | 5999 | if (matched) |
196a37f4 | 6000 | { |
4977bab6 ZW |
6001 | /* Copy the substitution body to permanent storage and execute it. |
6002 | If have_subst is false, this is a simple matter of running the | |
6003 | body through do_spec_1... */ | |
6004 | char *string = save_string (body, end_body - body); | |
6005 | if (!have_subst) | |
6006 | { | |
6007 | if (do_spec_1 (string, 0, NULL) < 0) | |
6008 | return 0; | |
6009 | } | |
6010 | else | |
6011 | { | |
6012 | /* ... but if have_subst is true, we have to process the | |
6013 | body once for each matching switch, with %* set to the | |
6014 | variant part of the switch. */ | |
6015 | unsigned int hard_match_len = end_atom - atom; | |
6016 | int i; | |
196a37f4 | 6017 | |
4977bab6 ZW |
6018 | for (i = 0; i < n_switches; i++) |
6019 | if (!strncmp (switches[i].part1, atom, hard_match_len) | |
6020 | && check_live_switch (i, hard_match_len)) | |
6021 | { | |
6022 | if (do_spec_1 (string, 0, | |
6023 | &switches[i].part1[hard_match_len]) < 0) | |
6024 | return 0; | |
6025 | /* Pass any arguments this switch has. */ | |
6026 | give_switch (i, 1); | |
6027 | suffix_subst = NULL; | |
6028 | } | |
6029 | } | |
10ebf5fe NB |
6030 | } |
6031 | ||
4977bab6 | 6032 | return p; |
3b5edfee NS |
6033 | |
6034 | invalid: | |
bdc6b402 | 6035 | fatal_error ("braced spec body %qs is invalid", body); |
ed1f651b | 6036 | } |
f5b0eb4e | 6037 | \f |
6c396fb5 RK |
6038 | /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch |
6039 | on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*} | |
6040 | spec, or -1 if either exact match or %* is used. | |
f5b0eb4e | 6041 | |
99ea153e | 6042 | A -O switch is obsoleted by a later -O switch. A -f, -g, -m, or -W switch |
f5b0eb4e RK |
6043 | whose value does not begin with "no-" is obsoleted by the same value |
6044 | with the "no-", similarly for a switch with the "no-" prefix. */ | |
6045 | ||
6046 | static int | |
1d088dee | 6047 | check_live_switch (int switchnum, int prefix_length) |
f5b0eb4e | 6048 | { |
878f32c3 | 6049 | const char *name = switches[switchnum].part1; |
f5b0eb4e RK |
6050 | int i; |
6051 | ||
2153915d AO |
6052 | /* If we already processed this switch and determined if it was |
6053 | live or not, return our past determination. */ | |
6054 | if (switches[switchnum].live_cond != 0) | |
6055 | return ((switches[switchnum].live_cond & SWITCH_LIVE) != 0 | |
6056 | && (switches[switchnum].live_cond & SWITCH_FALSE) == 0 | |
94b90527 JJ |
6057 | && (switches[switchnum].live_cond & SWITCH_IGNORE_PERMANENTLY) |
6058 | == 0); | |
2153915d | 6059 | |
6c396fb5 | 6060 | /* In the common case of {<at-most-one-letter>*}, a negating |
f5b0eb4e RK |
6061 | switch would always match, so ignore that case. We will just |
6062 | send the conflicting switches to the compiler phase. */ | |
6c396fb5 | 6063 | if (prefix_length >= 0 && prefix_length <= 1) |
f5b0eb4e RK |
6064 | return 1; |
6065 | ||
f5b0eb4e RK |
6066 | /* Now search for duplicate in a manner that depends on the name. */ |
6067 | switch (*name) | |
6068 | { | |
6069 | case 'O': | |
d25a45d4 KH |
6070 | for (i = switchnum + 1; i < n_switches; i++) |
6071 | if (switches[i].part1[0] == 'O') | |
6072 | { | |
d168aaee | 6073 | switches[switchnum].validated = true; |
d25a45d4 KH |
6074 | switches[switchnum].live_cond = SWITCH_FALSE; |
6075 | return 0; | |
6076 | } | |
f5b0eb4e | 6077 | break; |
ed1f651b | 6078 | |
99ea153e | 6079 | case 'W': case 'f': case 'm': case 'g': |
6c396fb5 | 6080 | if (! strncmp (name + 1, "no-", 3)) |
f5b0eb4e | 6081 | { |
0f41302f | 6082 | /* We have Xno-YYY, search for XYYY. */ |
f5b0eb4e RK |
6083 | for (i = switchnum + 1; i < n_switches; i++) |
6084 | if (switches[i].part1[0] == name[0] | |
6085 | && ! strcmp (&switches[i].part1[1], &name[4])) | |
d25a45d4 | 6086 | { |
d168aaee CB |
6087 | /* --specs are validated with the validate_switches mechanism. */ |
6088 | if (switches[switchnum].known) | |
6089 | switches[switchnum].validated = true; | |
d25a45d4 KH |
6090 | switches[switchnum].live_cond = SWITCH_FALSE; |
6091 | return 0; | |
6092 | } | |
f5b0eb4e RK |
6093 | } |
6094 | else | |
6095 | { | |
6096 | /* We have XYYY, search for Xno-YYY. */ | |
6097 | for (i = switchnum + 1; i < n_switches; i++) | |
6098 | if (switches[i].part1[0] == name[0] | |
6099 | && switches[i].part1[1] == 'n' | |
6100 | && switches[i].part1[2] == 'o' | |
6101 | && switches[i].part1[3] == '-' | |
6102 | && !strcmp (&switches[i].part1[4], &name[1])) | |
d25a45d4 | 6103 | { |
d168aaee CB |
6104 | /* --specs are validated with the validate_switches mechanism. */ |
6105 | if (switches[switchnum].known) | |
6106 | switches[switchnum].validated = true; | |
d25a45d4 KH |
6107 | switches[switchnum].live_cond = SWITCH_FALSE; |
6108 | return 0; | |
6109 | } | |
f5b0eb4e RK |
6110 | } |
6111 | break; | |
6112 | } | |
6113 | ||
6114 | /* Otherwise the switch is live. */ | |
3371362c | 6115 | switches[switchnum].live_cond |= SWITCH_LIVE; |
f5b0eb4e RK |
6116 | return 1; |
6117 | } | |
6118 | \f | |
ed1f651b RS |
6119 | /* Pass a switch to the current accumulating command |
6120 | in the same form that we received it. | |
6121 | SWITCHNUM identifies the switch; it is an index into | |
6122 | the vector of switches gcc received, which is `switches'. | |
6123 | This cannot fail since it never finishes a command line. | |
6124 | ||
4977bab6 | 6125 | If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */ |
ed1f651b RS |
6126 | |
6127 | static void | |
1d088dee | 6128 | give_switch (int switchnum, int omit_first_word) |
ed1f651b | 6129 | { |
3371362c | 6130 | if ((switches[switchnum].live_cond & SWITCH_IGNORE) != 0) |
8097c429 TT |
6131 | return; |
6132 | ||
ed1f651b RS |
6133 | if (!omit_first_word) |
6134 | { | |
6496a589 KG |
6135 | do_spec_1 ("-", 0, NULL); |
6136 | do_spec_1 (switches[switchnum].part1, 1, NULL); | |
ed1f651b | 6137 | } |
1ba9a487 | 6138 | |
ed1f651b RS |
6139 | if (switches[switchnum].args != 0) |
6140 | { | |
fbd40359 | 6141 | const char **p; |
ed1f651b RS |
6142 | for (p = switches[switchnum].args; *p; p++) |
6143 | { | |
11972f66 NS |
6144 | const char *arg = *p; |
6145 | ||
4977bab6 | 6146 | do_spec_1 (" ", 0, NULL); |
11972f66 NS |
6147 | if (suffix_subst) |
6148 | { | |
6149 | unsigned length = strlen (arg); | |
e65677af | 6150 | int dot = 0; |
11972f66 NS |
6151 | |
6152 | while (length-- && !IS_DIR_SEPARATOR (arg[length])) | |
6153 | if (arg[length] == '.') | |
6154 | { | |
c3284718 | 6155 | (CONST_CAST (char *, arg))[length] = 0; |
e65677af | 6156 | dot = 1; |
11972f66 NS |
6157 | break; |
6158 | } | |
6496a589 | 6159 | do_spec_1 (arg, 1, NULL); |
e65677af | 6160 | if (dot) |
c3284718 | 6161 | (CONST_CAST (char *, arg))[length] = '.'; |
e65677af | 6162 | do_spec_1 (suffix_subst, 1, NULL); |
11972f66 NS |
6163 | } |
6164 | else | |
6496a589 | 6165 | do_spec_1 (arg, 1, NULL); |
ed1f651b RS |
6166 | } |
6167 | } | |
1ba9a487 | 6168 | |
6496a589 | 6169 | do_spec_1 (" ", 0, NULL); |
d168aaee | 6170 | switches[switchnum].validated = true; |
ed1f651b RS |
6171 | } |
6172 | \f | |
dc10fd96 JJ |
6173 | /* Print GCC configuration (e.g. version, thread model, target, |
6174 | configuration_arguments) to a given FILE. */ | |
6175 | ||
6176 | static void | |
6177 | print_configuration (FILE *file) | |
6178 | { | |
6179 | int n; | |
6180 | const char *thrmod; | |
6181 | ||
6182 | fnotice (file, "Target: %s\n", spec_machine); | |
6183 | fnotice (file, "Configured with: %s\n", configuration_arguments); | |
6184 | ||
6185 | #ifdef THREAD_MODEL_SPEC | |
6186 | /* We could have defined THREAD_MODEL_SPEC to "%*" by default, | |
6187 | but there's no point in doing all this processing just to get | |
6188 | thread_model back. */ | |
6189 | obstack_init (&obstack); | |
6190 | do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model); | |
6191 | obstack_1grow (&obstack, '\0'); | |
6192 | thrmod = XOBFINISH (&obstack, const char *); | |
6193 | #else | |
6194 | thrmod = thread_model; | |
6195 | #endif | |
6196 | ||
6197 | fnotice (file, "Thread model: %s\n", thrmod); | |
6198 | ||
6199 | /* compiler_version is truncated at the first space when initialized | |
6200 | from version string, so truncate version_string at the first space | |
6201 | before comparing. */ | |
6202 | for (n = 0; version_string[n]; n++) | |
6203 | if (version_string[n] == ' ') | |
6204 | break; | |
6205 | ||
6206 | if (! strncmp (version_string, compiler_version, n) | |
6207 | && compiler_version[n] == 0) | |
6208 | fnotice (file, "gcc version %s %s\n\n", version_string, | |
6209 | pkgversion_string); | |
6210 | else | |
6211 | fnotice (file, "gcc driver version %s %sexecuting gcc version %s\n\n", | |
6212 | version_string, pkgversion_string, compiler_version); | |
6213 | ||
6214 | } | |
6215 | ||
6216 | #define RETRY_ICE_ATTEMPTS 3 | |
6217 | ||
6218 | /* Returns true if FILE1 and FILE2 contain equivalent data, 0 otherwise. */ | |
6219 | ||
6220 | static bool | |
6221 | files_equal_p (char *file1, char *file2) | |
6222 | { | |
6223 | struct stat st1, st2; | |
6224 | off_t n, len; | |
6225 | int fd1, fd2; | |
6226 | const int bufsize = 8192; | |
6227 | char *buf = XNEWVEC (char, bufsize); | |
6228 | ||
6229 | fd1 = open (file1, O_RDONLY); | |
6230 | fd2 = open (file2, O_RDONLY); | |
6231 | ||
6232 | if (fd1 < 0 || fd2 < 0) | |
6233 | goto error; | |
6234 | ||
6235 | if (fstat (fd1, &st1) < 0 || fstat (fd2, &st2) < 0) | |
6236 | goto error; | |
6237 | ||
6238 | if (st1.st_size != st2.st_size) | |
6239 | goto error; | |
6240 | ||
6241 | for (n = st1.st_size; n; n -= len) | |
6242 | { | |
6243 | len = n; | |
6244 | if ((int) len > bufsize / 2) | |
6245 | len = bufsize / 2; | |
6246 | ||
6247 | if (read (fd1, buf, len) != (int) len | |
6248 | || read (fd2, buf + bufsize / 2, len) != (int) len) | |
6249 | { | |
6250 | goto error; | |
6251 | } | |
6252 | ||
6253 | if (memcmp (buf, buf + bufsize / 2, len) != 0) | |
6254 | goto error; | |
6255 | } | |
6256 | ||
6257 | free (buf); | |
6258 | close (fd1); | |
6259 | close (fd2); | |
6260 | ||
6261 | return 1; | |
6262 | ||
6263 | error: | |
6264 | free (buf); | |
6265 | close (fd1); | |
6266 | close (fd2); | |
6267 | return 0; | |
6268 | } | |
6269 | ||
6270 | /* Check that compiler's output doesn't differ across runs. | |
6271 | TEMP_STDOUT_FILES and TEMP_STDERR_FILES are arrays of files, containing | |
6272 | stdout and stderr for each compiler run. Return true if all of | |
6273 | TEMP_STDOUT_FILES and TEMP_STDERR_FILES are equivalent. */ | |
6274 | ||
6275 | static bool | |
6276 | check_repro (char **temp_stdout_files, char **temp_stderr_files) | |
6277 | { | |
6278 | int i; | |
6279 | for (i = 0; i < RETRY_ICE_ATTEMPTS - 2; ++i) | |
6280 | { | |
6281 | if (!files_equal_p (temp_stdout_files[i], temp_stdout_files[i + 1]) | |
6282 | || !files_equal_p (temp_stderr_files[i], temp_stderr_files[i + 1])) | |
6283 | { | |
6284 | fnotice (stderr, "The bug is not reproducible, so it is" | |
6285 | " likely a hardware or OS problem.\n"); | |
6286 | break; | |
6287 | } | |
6288 | } | |
6289 | return i == RETRY_ICE_ATTEMPTS - 2; | |
6290 | } | |
6291 | ||
6292 | enum attempt_status { | |
6293 | ATTEMPT_STATUS_FAIL_TO_RUN, | |
6294 | ATTEMPT_STATUS_SUCCESS, | |
6295 | ATTEMPT_STATUS_ICE | |
6296 | }; | |
6297 | ||
6298 | ||
6299 | /* Run compiler with arguments NEW_ARGV to reproduce the ICE, storing stdout | |
6300 | to OUT_TEMP and stderr to ERR_TEMP. If APPEND is TRUE, append to OUT_TEMP | |
6301 | and ERR_TEMP instead of truncating. If EMIT_SYSTEM_INFO is TRUE, also write | |
6302 | GCC configuration into to ERR_TEMP. Return ATTEMPT_STATUS_FAIL_TO_RUN if | |
6303 | compiler failed to run, ATTEMPT_STATUS_ICE if compiled ICE-ed and | |
6304 | ATTEMPT_STATUS_SUCCESS otherwise. */ | |
6305 | ||
6306 | static enum attempt_status | |
6307 | run_attempt (const char **new_argv, const char *out_temp, | |
6308 | const char *err_temp, int emit_system_info, int append) | |
6309 | { | |
6310 | ||
6311 | if (emit_system_info) | |
6312 | { | |
6313 | FILE *file_out = fopen (err_temp, "a"); | |
6314 | print_configuration (file_out); | |
6315 | fclose (file_out); | |
6316 | } | |
6317 | ||
6318 | int exit_status; | |
6319 | const char *errmsg; | |
6320 | struct pex_obj *pex; | |
6321 | int err; | |
6322 | int pex_flags = PEX_USE_PIPES | PEX_LAST; | |
6323 | enum attempt_status status = ATTEMPT_STATUS_FAIL_TO_RUN; | |
6324 | ||
6325 | if (append) | |
6326 | pex_flags |= PEX_STDOUT_APPEND | PEX_STDERR_APPEND; | |
6327 | ||
6328 | pex = pex_init (PEX_USE_PIPES, new_argv[0], NULL); | |
6329 | if (!pex) | |
6330 | fatal_error ("pex_init failed: %m"); | |
6331 | ||
6332 | errmsg = pex_run (pex, pex_flags, new_argv[0], | |
6333 | CONST_CAST2 (char *const *, const char **, &new_argv[1]), out_temp, | |
6334 | err_temp, &err); | |
1120a850 TS |
6335 | if (errmsg != NULL) |
6336 | { | |
6337 | if (err == 0) | |
6338 | fatal_error (errmsg); | |
6339 | else | |
6340 | { | |
6341 | errno = err; | |
6342 | pfatal_with_name (errmsg); | |
6343 | } | |
6344 | } | |
dc10fd96 JJ |
6345 | |
6346 | if (!pex_get_status (pex, 1, &exit_status)) | |
6347 | goto out; | |
6348 | ||
6349 | switch (WEXITSTATUS (exit_status)) | |
6350 | { | |
6351 | case ICE_EXIT_CODE: | |
6352 | status = ATTEMPT_STATUS_ICE; | |
6353 | break; | |
6354 | ||
6355 | case SUCCESS_EXIT_CODE: | |
6356 | status = ATTEMPT_STATUS_SUCCESS; | |
6357 | break; | |
6358 | ||
6359 | default: | |
6360 | ; | |
6361 | } | |
6362 | ||
6363 | out: | |
6364 | pex_free (pex); | |
6365 | return status; | |
6366 | } | |
6367 | ||
6368 | /* This routine adds preprocessed source code into the given ERR_FILE. | |
6369 | To do this, it adds "-E" to NEW_ARGV and execute RUN_ATTEMPT routine to | |
6370 | add information in report file. RUN_ATTEMPT should return | |
6371 | ATTEMPT_STATUS_SUCCESS, in other case we cannot generate the report. */ | |
6372 | ||
6373 | static void | |
6374 | do_report_bug (const char **new_argv, const int nargs, | |
6375 | char **out_file, char **err_file) | |
6376 | { | |
6377 | int i, status; | |
6378 | int fd = open (*out_file, O_RDWR | O_APPEND); | |
6379 | if (fd < 0) | |
6380 | return; | |
6381 | write (fd, "\n//", 3); | |
6382 | for (i = 0; i < nargs; i++) | |
6383 | { | |
6384 | write (fd, " ", 1); | |
6385 | write (fd, new_argv[i], strlen (new_argv[i])); | |
6386 | } | |
6387 | write (fd, "\n\n", 2); | |
6388 | close (fd); | |
6389 | new_argv[nargs] = "-E"; | |
6390 | new_argv[nargs + 1] = NULL; | |
6391 | ||
6392 | status = run_attempt (new_argv, *out_file, *err_file, 0, 1); | |
6393 | ||
6394 | if (status == ATTEMPT_STATUS_SUCCESS) | |
6395 | { | |
6396 | fnotice (stderr, "Preprocessed source stored into %s file," | |
6397 | " please attach this to your bugreport.\n", *out_file); | |
6398 | /* Make sure it is not deleted. */ | |
6399 | free (*out_file); | |
6400 | *out_file = NULL; | |
6401 | } | |
6402 | } | |
6403 | ||
6404 | /* Append string STR to file FILE. */ | |
6405 | ||
6406 | static void | |
6407 | append_text (char *file, const char *str) | |
6408 | { | |
6409 | int fd = open (file, O_RDWR | O_APPEND); | |
6410 | if (fd < 0) | |
6411 | return; | |
6412 | ||
6413 | write (fd, str, strlen (str)); | |
6414 | close (fd); | |
6415 | } | |
6416 | ||
6417 | /* Try to reproduce ICE. If bug is reproducible, generate report .err file | |
6418 | containing GCC configuration, backtrace, compiler's command line options | |
6419 | and preprocessed source code. */ | |
6420 | ||
6421 | static void | |
1120a850 | 6422 | try_generate_repro (const char **argv) |
dc10fd96 JJ |
6423 | { |
6424 | int i, nargs, out_arg = -1, quiet = 0, attempt; | |
6425 | const char **new_argv; | |
6426 | char *temp_files[RETRY_ICE_ATTEMPTS * 2]; | |
6427 | char **temp_stdout_files = &temp_files[0]; | |
6428 | char **temp_stderr_files = &temp_files[RETRY_ICE_ATTEMPTS]; | |
6429 | ||
6430 | if (gcc_input_filename == NULL || ! strcmp (gcc_input_filename, "-")) | |
6431 | return; | |
6432 | ||
6433 | for (nargs = 0; argv[nargs] != NULL; ++nargs) | |
6434 | /* Only retry compiler ICEs, not preprocessor ones. */ | |
6435 | if (! strcmp (argv[nargs], "-E")) | |
6436 | return; | |
6437 | else if (argv[nargs][0] == '-' && argv[nargs][1] == 'o') | |
6438 | { | |
6439 | if (out_arg == -1) | |
6440 | out_arg = nargs; | |
6441 | else | |
6442 | return; | |
6443 | } | |
6444 | /* If the compiler is going to output any time information, | |
6445 | it might varry between invocations. */ | |
6446 | else if (! strcmp (argv[nargs], "-quiet")) | |
6447 | quiet = 1; | |
6448 | else if (! strcmp (argv[nargs], "-ftime-report")) | |
6449 | return; | |
6450 | ||
6451 | if (out_arg == -1 || !quiet) | |
6452 | return; | |
6453 | ||
6454 | memset (temp_files, '\0', sizeof (temp_files)); | |
6455 | new_argv = XALLOCAVEC (const char *, nargs + 4); | |
6456 | memcpy (new_argv, argv, (nargs + 1) * sizeof (const char *)); | |
6457 | new_argv[nargs++] = "-frandom-seed=0"; | |
6458 | new_argv[nargs++] = "-fdump-noaddr"; | |
6459 | new_argv[nargs] = NULL; | |
6460 | if (new_argv[out_arg][2] == '\0') | |
6461 | new_argv[out_arg + 1] = "-"; | |
6462 | else | |
6463 | new_argv[out_arg] = "-o-"; | |
6464 | ||
6465 | int status; | |
6466 | for (attempt = 0; attempt < RETRY_ICE_ATTEMPTS; ++attempt) | |
6467 | { | |
6468 | int emit_system_info = 0; | |
6469 | int append = 0; | |
6470 | temp_stdout_files[attempt] = make_temp_file (".out"); | |
6471 | temp_stderr_files[attempt] = make_temp_file (".err"); | |
6472 | ||
6473 | if (attempt == RETRY_ICE_ATTEMPTS - 1) | |
6474 | { | |
6475 | append = 1; | |
6476 | emit_system_info = 1; | |
6477 | } | |
6478 | ||
6479 | if (emit_system_info) | |
6480 | append_text (temp_stderr_files[attempt], "/*\n"); | |
6481 | ||
6482 | status = run_attempt (new_argv, temp_stdout_files[attempt], | |
6483 | temp_stderr_files[attempt], emit_system_info, | |
6484 | append); | |
6485 | ||
6486 | if (emit_system_info) | |
6487 | append_text (temp_stderr_files[attempt], "*/\n"); | |
6488 | ||
6489 | if (status != ATTEMPT_STATUS_ICE) | |
6490 | { | |
6491 | fnotice (stderr, "The bug is not reproducible, so it is" | |
6492 | " likely a hardware or OS problem.\n"); | |
6493 | goto out; | |
6494 | } | |
6495 | } | |
6496 | ||
6497 | if (!check_repro (temp_stdout_files, temp_stderr_files)) | |
6498 | goto out; | |
6499 | ||
6500 | /* In final attempt we append compiler options and preprocesssed code to last | |
6501 | generated .err file with configuration and backtrace. */ | |
6502 | do_report_bug (new_argv, nargs, | |
6503 | &temp_stderr_files[RETRY_ICE_ATTEMPTS - 1], | |
6504 | &temp_stdout_files[RETRY_ICE_ATTEMPTS - 1]); | |
6505 | ||
6506 | out: | |
6507 | for (i = 0; i < RETRY_ICE_ATTEMPTS * 2; i++) | |
6508 | if (temp_files[i]) | |
6509 | { | |
6510 | unlink (temp_stdout_files[i]); | |
6511 | free (temp_stdout_files[i]); | |
6512 | } | |
6513 | } | |
6514 | ||
ed1f651b RS |
6515 | /* Search for a file named NAME trying various prefixes including the |
6516 | user's -B prefix and some standard ones. | |
6517 | Return the absolute file name found. If nothing is found, return NAME. */ | |
6518 | ||
878f32c3 | 6519 | static const char * |
1d088dee | 6520 | find_file (const char *name) |
ed1f651b | 6521 | { |
00dcee0c | 6522 | char *newname = find_a_file (&startfile_prefixes, name, R_OK, true); |
ed1f651b RS |
6523 | return newname ? newname : name; |
6524 | } | |
6525 | ||
0ad5835e | 6526 | /* Determine whether a directory exists. If LINKER, return 0 for |
00dcee0c | 6527 | certain fixed names not needed by the linker. */ |
ed1f651b RS |
6528 | |
6529 | static int | |
00dcee0c | 6530 | is_directory (const char *path1, bool linker) |
ed1f651b | 6531 | { |
00dcee0c AM |
6532 | int len1; |
6533 | char *path; | |
ed1f651b RS |
6534 | char *cp; |
6535 | struct stat st; | |
6536 | ||
00dcee0c AM |
6537 | /* Ensure the string ends with "/.". The resulting path will be a |
6538 | directory even if the given path is a symbolic link. */ | |
6539 | len1 = strlen (path1); | |
e1e4cdc4 | 6540 | path = (char *) alloca (3 + len1); |
7e2231e7 | 6541 | memcpy (path, path1, len1); |
00dcee0c | 6542 | cp = path + len1; |
509781a4 | 6543 | if (!IS_DIR_SEPARATOR (cp[-1])) |
48ff801b | 6544 | *cp++ = DIR_SEPARATOR; |
ed1f651b RS |
6545 | *cp++ = '.'; |
6546 | *cp = '\0'; | |
6547 | ||
6548 | /* Exclude directories that the linker is known to search. */ | |
0ad5835e | 6549 | if (linker |
00dcee0c | 6550 | && IS_DIR_SEPARATOR (path[0]) |
48ff801b | 6551 | && ((cp - path == 6 |
ba78087b | 6552 | && filename_ncmp (path + 1, "lib", 3) == 0) |
48ff801b | 6553 | || (cp - path == 10 |
ba78087b | 6554 | && filename_ncmp (path + 1, "usr", 3) == 0 |
00dcee0c | 6555 | && IS_DIR_SEPARATOR (path[4]) |
ba78087b | 6556 | && filename_ncmp (path + 5, "lib", 3) == 0))) |
ed1f651b RS |
6557 | return 0; |
6558 | ||
6559 | return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode)); | |
6560 | } | |
512b62fb JM |
6561 | |
6562 | /* Set up the various global variables to indicate that we're processing | |
6563 | the input file named FILENAME. */ | |
6564 | ||
b856c15d | 6565 | void |
1d088dee | 6566 | set_input (const char *filename) |
512b62fb | 6567 | { |
b3694847 | 6568 | const char *p; |
512b62fb | 6569 | |
6afbc885 JM |
6570 | gcc_input_filename = filename; |
6571 | input_filename_length = strlen (gcc_input_filename); | |
6572 | input_basename = lbasename (gcc_input_filename); | |
512b62fb JM |
6573 | |
6574 | /* Find a suffix starting with the last period, | |
6575 | and set basename_length to exclude that suffix. */ | |
6576 | basename_length = strlen (input_basename); | |
ea414c97 | 6577 | suffixed_basename_length = basename_length; |
512b62fb | 6578 | p = input_basename + basename_length; |
d25a45d4 KH |
6579 | while (p != input_basename && *p != '.') |
6580 | --p; | |
512b62fb JM |
6581 | if (*p == '.' && p != input_basename) |
6582 | { | |
6583 | basename_length = p - input_basename; | |
6584 | input_suffix = p + 1; | |
6585 | } | |
6586 | else | |
6587 | input_suffix = ""; | |
589005ff | 6588 | |
99f78cdd | 6589 | /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then |
6afbc885 | 6590 | we will need to do a stat on the gcc_input_filename. The |
99f78cdd IR |
6591 | INPUT_STAT_SET signals that the stat is needed. */ |
6592 | input_stat_set = 0; | |
512b62fb | 6593 | } |
ed1f651b RS |
6594 | \f |
6595 | /* On fatal signals, delete all the temporary files. */ | |
6596 | ||
6597 | static void | |
2dec80c7 | 6598 | fatal_signal (int signum) |
ed1f651b RS |
6599 | { |
6600 | signal (signum, SIG_DFL); | |
6601 | delete_failure_queue (); | |
6602 | delete_temp_files (); | |
6603 | /* Get the same signal again, this time not handled, | |
6604 | so its normal effect occurs. */ | |
6605 | kill (getpid (), signum); | |
6606 | } | |
6607 | ||
2153915d AO |
6608 | /* Compare the contents of the two files named CMPFILE[0] and |
6609 | CMPFILE[1]. Return zero if they're identical, nonzero | |
6610 | otherwise. */ | |
6611 | ||
6612 | static int | |
6613 | compare_files (char *cmpfile[]) | |
6614 | { | |
6615 | int ret = 0; | |
6616 | FILE *temp[2] = { NULL, NULL }; | |
6617 | int i; | |
6618 | ||
6619 | #if HAVE_MMAP_FILE | |
6620 | { | |
6621 | size_t length[2]; | |
6622 | void *map[2] = { NULL, NULL }; | |
6623 | ||
6624 | for (i = 0; i < 2; i++) | |
6625 | { | |
6626 | struct stat st; | |
6627 | ||
6628 | if (stat (cmpfile[i], &st) < 0 || !S_ISREG (st.st_mode)) | |
6629 | { | |
6630 | error ("%s: could not determine length of compare-debug file %s", | |
6afbc885 | 6631 | gcc_input_filename, cmpfile[i]); |
2153915d AO |
6632 | ret = 1; |
6633 | break; | |
6634 | } | |
6635 | ||
6636 | length[i] = st.st_size; | |
6637 | } | |
6638 | ||
6639 | if (!ret && length[0] != length[1]) | |
6640 | { | |
6afbc885 | 6641 | error ("%s: -fcompare-debug failure (length)", gcc_input_filename); |
2153915d AO |
6642 | ret = 1; |
6643 | } | |
6644 | ||
6645 | if (!ret) | |
6646 | for (i = 0; i < 2; i++) | |
6647 | { | |
6648 | int fd = open (cmpfile[i], O_RDONLY); | |
6649 | if (fd < 0) | |
6650 | { | |
6651 | error ("%s: could not open compare-debug file %s", | |
6afbc885 | 6652 | gcc_input_filename, cmpfile[i]); |
2153915d AO |
6653 | ret = 1; |
6654 | break; | |
6655 | } | |
6656 | ||
6657 | map[i] = mmap (NULL, length[i], PROT_READ, MAP_PRIVATE, fd, 0); | |
6658 | close (fd); | |
6659 | ||
6660 | if (map[i] == (void *) MAP_FAILED) | |
6661 | { | |
6662 | ret = -1; | |
6663 | break; | |
6664 | } | |
6665 | } | |
6666 | ||
6667 | if (!ret) | |
6668 | { | |
6669 | if (memcmp (map[0], map[1], length[0]) != 0) | |
6670 | { | |
6afbc885 | 6671 | error ("%s: -fcompare-debug failure", gcc_input_filename); |
2153915d AO |
6672 | ret = 1; |
6673 | } | |
6674 | } | |
6675 | ||
6676 | for (i = 0; i < 2; i++) | |
6677 | if (map[i]) | |
e7aae3e8 | 6678 | munmap ((caddr_t) map[i], length[i]); |
2153915d AO |
6679 | |
6680 | if (ret >= 0) | |
6681 | return ret; | |
6682 | ||
6683 | ret = 0; | |
6684 | } | |
6685 | #endif | |
6686 | ||
6687 | for (i = 0; i < 2; i++) | |
6688 | { | |
6689 | temp[i] = fopen (cmpfile[i], "r"); | |
6690 | if (!temp[i]) | |
6691 | { | |
6692 | error ("%s: could not open compare-debug file %s", | |
6afbc885 | 6693 | gcc_input_filename, cmpfile[i]); |
2153915d AO |
6694 | ret = 1; |
6695 | break; | |
6696 | } | |
6697 | } | |
6698 | ||
6699 | if (!ret && temp[0] && temp[1]) | |
6700 | for (;;) | |
6701 | { | |
6702 | int c0, c1; | |
6703 | c0 = fgetc (temp[0]); | |
6704 | c1 = fgetc (temp[1]); | |
6705 | ||
6706 | if (c0 != c1) | |
6707 | { | |
6708 | error ("%s: -fcompare-debug failure", | |
6afbc885 | 6709 | gcc_input_filename); |
2153915d AO |
6710 | ret = 1; |
6711 | break; | |
6712 | } | |
6713 | ||
6714 | if (c0 == EOF) | |
6715 | break; | |
6716 | } | |
6717 | ||
6718 | for (i = 1; i >= 0; i--) | |
6719 | { | |
6720 | if (temp[i]) | |
6721 | fclose (temp[i]); | |
6722 | } | |
6723 | ||
6724 | return ret; | |
6725 | } | |
6726 | ||
742a072a DM |
6727 | /* The top-level "main" within the driver would be ~1000 lines long. |
6728 | This class breaks it up into smaller functions and contains some | |
6729 | state shared by them. */ | |
a8f227e7 | 6730 | |
742a072a | 6731 | class driver |
ed1f651b | 6732 | { |
742a072a DM |
6733 | public: |
6734 | int main (int argc, char **argv); | |
6735 | ||
6736 | private: | |
6737 | void set_progname (const char *argv0) const; | |
6738 | void expand_at_files (int *argc, char ***argv) const; | |
6739 | void decode_argv (int argc, const char **argv); | |
acbb0489 | 6740 | void global_initializations (); |
742a072a DM |
6741 | void build_multilib_strings () const; |
6742 | void set_up_specs () const; | |
6743 | void putenv_COLLECT_GCC (const char *argv0) const; | |
6744 | void maybe_putenv_COLLECT_LTO_WRAPPER () const; | |
6745 | void handle_unrecognized_options () const; | |
6746 | int maybe_print_and_exit () const; | |
6747 | bool prepare_infiles (); | |
6748 | void do_spec_on_infiles () const; | |
6749 | void maybe_run_linker (const char *argv0) const; | |
6750 | void final_actions () const; | |
6751 | int get_exit_code () const; | |
6752 | ||
6753 | private: | |
ed1f651b | 6754 | char *explicit_link_files; |
60cf253a JM |
6755 | struct cl_decoded_option *decoded_options; |
6756 | unsigned int decoded_options_count; | |
742a072a DM |
6757 | }; |
6758 | ||
6759 | /* Implement the top-level "main" within the driver in terms of | |
6760 | driver::main. */ | |
6761 | ||
6762 | extern int main (int, char **); | |
ed1f651b | 6763 | |
742a072a DM |
6764 | int |
6765 | main (int argc, char **argv) | |
6766 | { | |
6767 | driver d; | |
6768 | ||
6769 | return d.main (argc, argv); | |
6770 | } | |
6771 | ||
6772 | /* driver::main is implemented as a series of driver:: method calls. */ | |
6773 | ||
6774 | int | |
6775 | driver::main (int argc, char **argv) | |
6776 | { | |
6777 | bool early_exit; | |
6778 | ||
6779 | set_progname (argv[0]); | |
6780 | expand_at_files (&argc, &argv); | |
6781 | decode_argv (argc, const_cast <const char **> (argv)); | |
6782 | global_initializations (); | |
6783 | build_multilib_strings (); | |
6784 | set_up_specs (); | |
6785 | putenv_COLLECT_GCC (argv[0]); | |
6786 | maybe_putenv_COLLECT_LTO_WRAPPER (); | |
6787 | handle_unrecognized_options (); | |
6788 | ||
6789 | if (!maybe_print_and_exit ()) | |
6790 | return 0; | |
6791 | ||
6792 | early_exit = prepare_infiles (); | |
6793 | if (early_exit) | |
6794 | return get_exit_code (); | |
6795 | ||
6796 | do_spec_on_infiles (); | |
6797 | maybe_run_linker (argv[0]); | |
6798 | final_actions (); | |
6799 | return get_exit_code (); | |
6800 | } | |
6801 | ||
6802 | /* Locate the final component of argv[0] after any leading path, and set | |
6803 | the program name accordingly. */ | |
6804 | ||
6805 | void | |
6806 | driver::set_progname (const char *argv0) const | |
6807 | { | |
6808 | const char *p = argv0 + strlen (argv0); | |
6809 | while (p != argv0 && !IS_DIR_SEPARATOR (p[-1])) | |
509781a4 | 6810 | --p; |
6afbc885 | 6811 | progname = p; |
ed1f651b | 6812 | |
6afbc885 | 6813 | xmalloc_set_program_name (progname); |
742a072a | 6814 | } |
e1a132c6 | 6815 | |
742a072a DM |
6816 | /* Expand any @ files within the command-line args, |
6817 | setting at_file_supplied if any were expanded. */ | |
6818 | ||
6819 | void | |
6820 | driver::expand_at_files (int *argc, char ***argv) const | |
6821 | { | |
6822 | char **old_argv = *argv; | |
6823 | ||
6824 | expandargv (argc, argv); | |
9d530538 | 6825 | |
2091ff66 | 6826 | /* Determine if any expansions were made. */ |
742a072a | 6827 | if (*argv != old_argv) |
2091ff66 | 6828 | at_file_supplied = true; |
742a072a | 6829 | } |
2091ff66 | 6830 | |
742a072a DM |
6831 | /* Decode the command-line arguments from argc/argv into the |
6832 | decoded_options array. */ | |
6833 | ||
6834 | void | |
6835 | driver::decode_argv (int argc, const char **argv) | |
6836 | { | |
a7d0d30f JM |
6837 | /* Register the language-independent parameters. */ |
6838 | global_init_params (); | |
6839 | finish_params (); | |
6840 | ||
6841 | init_options_struct (&global_options, &global_options_set); | |
a75bfaa6 | 6842 | |
742a072a | 6843 | decode_cmdline_options_to_array (argc, argv, |
60cf253a JM |
6844 | CL_DRIVER, |
6845 | &decoded_options, &decoded_options_count); | |
742a072a DM |
6846 | } |
6847 | ||
6848 | /* Perform various initializations and setup. */ | |
14c7833c | 6849 | |
742a072a | 6850 | void |
acbb0489 | 6851 | driver::global_initializations () |
742a072a | 6852 | { |
98a3dad4 | 6853 | /* Unlock the stdio streams. */ |
2653bb0c | 6854 | unlock_std_streams (); |
98a3dad4 | 6855 | |
191bf464 | 6856 | gcc_init_libintl (); |
ab87f8c8 | 6857 | |
6afbc885 | 6858 | diagnostic_initialize (global_dc, 0); |
ccbc132f RM |
6859 | |
6860 | #ifdef GCC_DRIVER_HOST_INITIALIZATION | |
6861 | /* Perform host dependent initialization when needed. */ | |
6862 | GCC_DRIVER_HOST_INITIALIZATION; | |
6863 | #endif | |
6864 | ||
6afbc885 JM |
6865 | if (atexit (delete_temp_files) != 0) |
6866 | fatal_error ("atexit failed"); | |
6867 | ||
ed1f651b | 6868 | if (signal (SIGINT, SIG_IGN) != SIG_IGN) |
2dec80c7 | 6869 | signal (SIGINT, fatal_signal); |
2a353d3a | 6870 | #ifdef SIGHUP |
ed1f651b | 6871 | if (signal (SIGHUP, SIG_IGN) != SIG_IGN) |
2dec80c7 | 6872 | signal (SIGHUP, fatal_signal); |
2a353d3a | 6873 | #endif |
ed1f651b | 6874 | if (signal (SIGTERM, SIG_IGN) != SIG_IGN) |
2dec80c7 | 6875 | signal (SIGTERM, fatal_signal); |
ed1f651b RS |
6876 | #ifdef SIGPIPE |
6877 | if (signal (SIGPIPE, SIG_IGN) != SIG_IGN) | |
2dec80c7 | 6878 | signal (SIGPIPE, fatal_signal); |
ed1f651b | 6879 | #endif |
798bdf70 | 6880 | #ifdef SIGCHLD |
0bf679a3 BK |
6881 | /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will |
6882 | receive the signal. A different setting is inheritable */ | |
6883 | signal (SIGCHLD, SIG_DFL); | |
798bdf70 | 6884 | #endif |
ed1f651b | 6885 | |
d423df48 JJ |
6886 | /* Parsing and gimplification sometimes need quite large stack. |
6887 | Increase stack size limits if possible. */ | |
6888 | stack_limit_increase (64 * 1024 * 1024); | |
6889 | ||
f3226a90 JT |
6890 | /* Allocate the argument vector. */ |
6891 | alloc_args (); | |
ed1f651b RS |
6892 | |
6893 | obstack_init (&obstack); | |
742a072a DM |
6894 | } |
6895 | ||
6896 | /* Build multilib_select, et. al from the separate lines that make up each | |
6897 | multilib selection. */ | |
ed1f651b | 6898 | |
742a072a DM |
6899 | void |
6900 | driver::build_multilib_strings () const | |
6901 | { | |
ffd86336 | 6902 | { |
742a072a | 6903 | const char *p; |
3b304f5b | 6904 | const char *const *q = multilib_raw; |
961b7009 | 6905 | int need_space; |
ffd86336 JW |
6906 | |
6907 | obstack_init (&multilib_obstack); | |
0f41302f | 6908 | while ((p = *q++) != (char *) 0) |
ffd86336 JW |
6909 | obstack_grow (&multilib_obstack, p, strlen (p)); |
6910 | ||
6911 | obstack_1grow (&multilib_obstack, 0); | |
7973fd2a | 6912 | multilib_select = XOBFINISH (&multilib_obstack, const char *); |
961b7009 MM |
6913 | |
6914 | q = multilib_matches_raw; | |
6915 | while ((p = *q++) != (char *) 0) | |
6916 | obstack_grow (&multilib_obstack, p, strlen (p)); | |
6917 | ||
6918 | obstack_1grow (&multilib_obstack, 0); | |
7973fd2a | 6919 | multilib_matches = XOBFINISH (&multilib_obstack, const char *); |
961b7009 | 6920 | |
0a8d6618 BC |
6921 | q = multilib_exclusions_raw; |
6922 | while ((p = *q++) != (char *) 0) | |
d25a45d4 | 6923 | obstack_grow (&multilib_obstack, p, strlen (p)); |
0a8d6618 BC |
6924 | |
6925 | obstack_1grow (&multilib_obstack, 0); | |
7973fd2a | 6926 | multilib_exclusions = XOBFINISH (&multilib_obstack, const char *); |
9218435e | 6927 | |
e7f49d92 TG |
6928 | q = multilib_reuse_raw; |
6929 | while ((p = *q++) != (char *) 0) | |
6930 | obstack_grow (&multilib_obstack, p, strlen (p)); | |
6931 | ||
6932 | obstack_1grow (&multilib_obstack, 0); | |
6933 | multilib_reuse = XOBFINISH (&multilib_obstack, const char *); | |
6934 | ||
961b7009 | 6935 | need_space = FALSE; |
742a072a | 6936 | for (size_t i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++) |
961b7009 MM |
6937 | { |
6938 | if (need_space) | |
6939 | obstack_1grow (&multilib_obstack, ' '); | |
6940 | obstack_grow (&multilib_obstack, | |
6941 | multilib_defaults_raw[i], | |
6942 | strlen (multilib_defaults_raw[i])); | |
6943 | need_space = TRUE; | |
6944 | } | |
6945 | ||
6946 | obstack_1grow (&multilib_obstack, 0); | |
7973fd2a | 6947 | multilib_defaults = XOBFINISH (&multilib_obstack, const char *); |
ffd86336 | 6948 | } |
742a072a DM |
6949 | } |
6950 | ||
6951 | /* Set up the spec-handling machinery. */ | |
6952 | ||
6953 | void | |
6954 | driver::set_up_specs () const | |
6955 | { | |
6956 | char *specs_file; | |
6957 | size_t i; | |
ffd86336 | 6958 | |
8faf4a68 JW |
6959 | #ifdef INIT_ENVIRONMENT |
6960 | /* Set up any other necessary machine specific environment variables. */ | |
47d33318 | 6961 | xputenv (INIT_ENVIRONMENT); |
8faf4a68 JW |
6962 | #endif |
6963 | ||
ed1f651b RS |
6964 | /* Make a table of what switches there are (switches, n_switches). |
6965 | Make a table of specified input files (infiles, n_infiles). | |
6966 | Decode switches that are handled locally. */ | |
6967 | ||
60cf253a | 6968 | process_command (decoded_options_count, decoded_options); |
ed1f651b RS |
6969 | |
6970 | /* Initialize the vector of specs to just the default. | |
6971 | This means one element containing 0s, as a terminator. */ | |
6972 | ||
e1e4cdc4 | 6973 | compilers = XNEWVAR (struct compiler, sizeof default_compilers); |
703ad42b | 6974 | memcpy (compilers, default_compilers, sizeof default_compilers); |
ed1f651b RS |
6975 | n_compilers = n_default_compilers; |
6976 | ||
6977 | /* Read specs from a file if there is one. */ | |
6978 | ||
6aa62cff | 6979 | machine_suffix = concat (spec_machine, dir_separator_str, |
d4f2852f KG |
6980 | spec_version, dir_separator_str, NULL); |
6981 | just_machine_suffix = concat (spec_machine, dir_separator_str, NULL); | |
ed1f651b | 6982 | |
00dcee0c | 6983 | specs_file = find_a_file (&startfile_prefixes, "specs", R_OK, true); |
ed1f651b RS |
6984 | /* Read the specs file unless it is a default one. */ |
6985 | if (specs_file != 0 && strcmp (specs_file, "specs")) | |
d168aaee | 6986 | read_specs (specs_file, true, false); |
20df0482 MM |
6987 | else |
6988 | init_spec (); | |
841faeed | 6989 | |
5bb67e36 | 6990 | /* We need to check standard_exec_prefix/just_machine_suffix/specs |
3ac63d94 | 6991 | for any override of as, ld and libraries. */ |
e1e4cdc4 | 6992 | specs_file = (char *) alloca (strlen (standard_exec_prefix) |
703ad42b | 6993 | + strlen (just_machine_suffix) + sizeof ("specs")); |
5bb67e36 RK |
6994 | |
6995 | strcpy (specs_file, standard_exec_prefix); | |
6996 | strcat (specs_file, just_machine_suffix); | |
6997 | strcat (specs_file, "specs"); | |
6998 | if (access (specs_file, R_OK) == 0) | |
d168aaee | 6999 | read_specs (specs_file, true, false); |
9218435e | 7000 | |
7816bea0 DJ |
7001 | /* Process any configure-time defaults specified for the command line |
7002 | options, via OPTION_DEFAULT_SPECS. */ | |
7003 | for (i = 0; i < ARRAY_SIZE (option_default_specs); i++) | |
7004 | do_option_spec (option_default_specs[i].name, | |
7005 | option_default_specs[i].spec); | |
7006 | ||
3bd6d4c4 AO |
7007 | /* Process DRIVER_SELF_SPECS, adding any new options to the end |
7008 | of the command line. */ | |
7009 | ||
7010 | for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++) | |
7011 | do_self_spec (driver_self_specs[i]); | |
7012 | ||
4977bab6 ZW |
7013 | /* If not cross-compiling, look for executables in the standard |
7014 | places. */ | |
7015 | if (*cross_compile == '0') | |
004fd4d5 | 7016 | { |
2296d164 RK |
7017 | if (*md_exec_prefix) |
7018 | { | |
7019 | add_prefix (&exec_prefixes, md_exec_prefix, "GCC", | |
1a5d37a1 | 7020 | PREFIX_PRIORITY_LAST, 0, 0); |
2296d164 | 7021 | } |
4977bab6 ZW |
7022 | } |
7023 | ||
71c0e7fc | 7024 | /* Process sysroot_suffix_spec. */ |
e7f13528 | 7025 | if (*sysroot_suffix_spec != 0 |
28b4fc51 | 7026 | && !no_sysroot_suffix |
e7f13528 GP |
7027 | && do_spec_2 (sysroot_suffix_spec) == 0) |
7028 | { | |
9771b263 | 7029 | if (argbuf.length () > 1) |
ab532386 | 7030 | error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC"); |
9771b263 DN |
7031 | else if (argbuf.length () == 1) |
7032 | target_sysroot_suffix = xstrdup (argbuf.last ()); | |
e7f13528 GP |
7033 | } |
7034 | ||
380e5ca4 MM |
7035 | #ifdef HAVE_LD_SYSROOT |
7036 | /* Pass the --sysroot option to the linker, if it supports that. If | |
7037 | there is a sysroot_suffix_spec, it has already been processed by | |
7038 | this point, so target_system_root really is the system root we | |
7039 | should be using. */ | |
7040 | if (target_system_root) | |
7041 | { | |
7042 | obstack_grow (&obstack, "%(sysroot_spec) ", strlen ("%(sysroot_spec) ")); | |
7043 | obstack_grow0 (&obstack, link_spec, strlen (link_spec)); | |
d168aaee | 7044 | set_spec ("link", XOBFINISH (&obstack, const char *), false); |
380e5ca4 MM |
7045 | } |
7046 | #endif | |
7047 | ||
71c0e7fc | 7048 | /* Process sysroot_hdrs_suffix_spec. */ |
e7f13528 | 7049 | if (*sysroot_hdrs_suffix_spec != 0 |
28b4fc51 | 7050 | && !no_sysroot_suffix |
e7f13528 GP |
7051 | && do_spec_2 (sysroot_hdrs_suffix_spec) == 0) |
7052 | { | |
9771b263 | 7053 | if (argbuf.length () > 1) |
ab532386 | 7054 | error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC"); |
9771b263 DN |
7055 | else if (argbuf.length () == 1) |
7056 | target_sysroot_hdrs_suffix = xstrdup (argbuf.last ()); | |
e7f13528 GP |
7057 | } |
7058 | ||
4977bab6 ZW |
7059 | /* Look for startfiles in the standard places. */ |
7060 | if (*startfile_prefix_spec != 0 | |
7061 | && do_spec_2 (startfile_prefix_spec) == 0 | |
7062 | && do_spec_1 (" ", 0, NULL) == 0) | |
7063 | { | |
5b634ee0 | 7064 | const char *arg; |
4977bab6 | 7065 | int ndx; |
9771b263 | 7066 | FOR_EACH_VEC_ELT (argbuf, ndx, arg) |
5b634ee0 | 7067 | add_sysrooted_prefix (&startfile_prefixes, arg, "BINUTILS", |
1a5d37a1 | 7068 | PREFIX_PRIORITY_LAST, 0, 1); |
4977bab6 ZW |
7069 | } |
7070 | /* We should eventually get rid of all these and stick to | |
7071 | startfile_prefix_spec exclusively. */ | |
7072 | else if (*cross_compile == '0' || target_system_root) | |
7073 | { | |
2296d164 | 7074 | if (*md_startfile_prefix) |
4977bab6 | 7075 | add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix, |
1a5d37a1 | 7076 | "GCC", PREFIX_PRIORITY_LAST, 0, 1); |
004fd4d5 | 7077 | |
2296d164 | 7078 | if (*md_startfile_prefix_1) |
4977bab6 | 7079 | add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix_1, |
1a5d37a1 | 7080 | "GCC", PREFIX_PRIORITY_LAST, 0, 1); |
607a4f7d | 7081 | |
4dbc7773 ILT |
7082 | /* If standard_startfile_prefix is relative, base it on |
7083 | standard_exec_prefix. This lets us move the installed tree | |
7084 | as a unit. If GCC_EXEC_PREFIX is defined, base | |
0d037580 DJ |
7085 | standard_startfile_prefix on that as well. |
7086 | ||
7087 | If the prefix is relative, only search it for native compilers; | |
7088 | otherwise we will search a directory containing host libraries. */ | |
3dce1408 | 7089 | if (IS_ABSOLUTE_PATH (standard_startfile_prefix)) |
4977bab6 ZW |
7090 | add_sysrooted_prefix (&startfile_prefixes, |
7091 | standard_startfile_prefix, "BINUTILS", | |
1a5d37a1 | 7092 | PREFIX_PRIORITY_LAST, 0, 1); |
0d037580 | 7093 | else if (*cross_compile == '0') |
4dbc7773 | 7094 | { |
48ff801b | 7095 | add_prefix (&startfile_prefixes, |
b8698a0f L |
7096 | concat (gcc_exec_prefix |
7097 | ? gcc_exec_prefix : standard_exec_prefix, | |
7098 | machine_suffix, | |
d4f2852f | 7099 | standard_startfile_prefix, NULL), |
1a5d37a1 | 7100 | NULL, PREFIX_PRIORITY_LAST, 0, 1); |
9218435e | 7101 | } |
4dbc7773 | 7102 | |
f4c0a303 CD |
7103 | /* Sysrooted prefixes are relocated because target_system_root is |
7104 | also relocated by gcc_exec_prefix. */ | |
656c7a3a AL |
7105 | if (*standard_startfile_prefix_1) |
7106 | add_sysrooted_prefix (&startfile_prefixes, | |
7107 | standard_startfile_prefix_1, "BINUTILS", | |
1a5d37a1 | 7108 | PREFIX_PRIORITY_LAST, 0, 1); |
656c7a3a AL |
7109 | if (*standard_startfile_prefix_2) |
7110 | add_sysrooted_prefix (&startfile_prefixes, | |
7111 | standard_startfile_prefix_2, "BINUTILS", | |
1a5d37a1 | 7112 | PREFIX_PRIORITY_LAST, 0, 1); |
004fd4d5 | 7113 | } |
343f59d9 | 7114 | |
8607048d TT |
7115 | /* Process any user specified specs in the order given on the command |
7116 | line. */ | |
742a072a | 7117 | for (struct user_specs *uptr = user_specs_head; uptr; uptr = uptr->next) |
8607048d | 7118 | { |
5bbcd587 | 7119 | char *filename = find_a_file (&startfile_prefixes, uptr->filename, |
00dcee0c | 7120 | R_OK, true); |
d168aaee | 7121 | read_specs (filename ? filename : uptr->filename, false, true); |
8607048d TT |
7122 | } |
7123 | ||
84f405a1 JJ |
7124 | /* Process any user self specs. */ |
7125 | { | |
7126 | struct spec_list *sl; | |
7127 | for (sl = specs; sl; sl = sl->next) | |
7128 | if (sl->name_len == sizeof "self_spec" - 1 | |
7129 | && !strcmp (sl->name, "self_spec")) | |
7130 | do_self_spec (*sl->ptr_spec); | |
7131 | } | |
7132 | ||
7133 | if (compare_debug) | |
7134 | { | |
7135 | enum save_temps save; | |
7136 | ||
7137 | if (!compare_debug_second) | |
7138 | { | |
7139 | n_switches_debug_check[1] = n_switches; | |
7140 | n_switches_alloc_debug_check[1] = n_switches_alloc; | |
7141 | switches_debug_check[1] = XDUPVEC (struct switchstr, switches, | |
7142 | n_switches_alloc); | |
7143 | ||
7144 | do_self_spec ("%:compare-debug-self-opt()"); | |
7145 | n_switches_debug_check[0] = n_switches; | |
7146 | n_switches_alloc_debug_check[0] = n_switches_alloc; | |
7147 | switches_debug_check[0] = switches; | |
7148 | ||
7149 | n_switches = n_switches_debug_check[1]; | |
7150 | n_switches_alloc = n_switches_alloc_debug_check[1]; | |
7151 | switches = switches_debug_check[1]; | |
7152 | } | |
7153 | ||
7154 | /* Avoid crash when computing %j in this early. */ | |
7155 | save = save_temps_flag; | |
7156 | save_temps_flag = SAVE_TEMPS_NONE; | |
7157 | ||
7158 | compare_debug = -compare_debug; | |
7159 | do_self_spec ("%:compare-debug-self-opt()"); | |
7160 | ||
7161 | save_temps_flag = save; | |
7162 | ||
7163 | if (!compare_debug_second) | |
7164 | { | |
7165 | n_switches_debug_check[1] = n_switches; | |
7166 | n_switches_alloc_debug_check[1] = n_switches_alloc; | |
7167 | switches_debug_check[1] = switches; | |
7168 | compare_debug = -compare_debug; | |
7169 | n_switches = n_switches_debug_check[0]; | |
7170 | n_switches_alloc = n_switches_debug_check[0]; | |
7171 | switches = switches_debug_check[0]; | |
7172 | } | |
7173 | } | |
7174 | ||
7175 | ||
e8601ecb JW |
7176 | /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */ |
7177 | if (gcc_exec_prefix) | |
cb6edbcb KG |
7178 | gcc_exec_prefix = concat (gcc_exec_prefix, spec_machine, dir_separator_str, |
7179 | spec_version, dir_separator_str, NULL); | |
004fd4d5 | 7180 | |
ed1f651b RS |
7181 | /* Now we have the specs. |
7182 | Set the `valid' bits for switches that match anything in any spec. */ | |
7183 | ||
7184 | validate_all_switches (); | |
7185 | ||
60103a34 DE |
7186 | /* Now that we have the switches and the specs, set |
7187 | the subdirectory based on the options. */ | |
7188 | set_multilib_dir (); | |
742a072a DM |
7189 | } |
7190 | ||
7191 | /* Set up to remember the pathname of gcc and any options | |
7192 | needed for collect. We use argv[0] instead of progname because | |
7193 | we need the complete pathname. */ | |
60103a34 | 7194 | |
742a072a DM |
7195 | void |
7196 | driver::putenv_COLLECT_GCC (const char *argv0) const | |
7197 | { | |
d7f09764 DN |
7198 | obstack_init (&collect_obstack); |
7199 | obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1); | |
742a072a | 7200 | obstack_grow (&collect_obstack, argv0, strlen (argv0) + 1); |
d7f09764 | 7201 | xputenv (XOBFINISH (&collect_obstack, char *)); |
742a072a | 7202 | } |
d7f09764 | 7203 | |
742a072a DM |
7204 | /* Set up to remember the pathname of the lto wrapper. */ |
7205 | ||
7206 | void | |
7207 | driver::maybe_putenv_COLLECT_LTO_WRAPPER () const | |
7208 | { | |
7209 | char *lto_wrapper_file; | |
d7f09764 | 7210 | |
117cb2bc JJ |
7211 | if (have_c) |
7212 | lto_wrapper_file = NULL; | |
7213 | else | |
7214 | lto_wrapper_file = find_a_file (&exec_prefixes, "lto-wrapper", | |
7215 | X_OK, false); | |
de9a793e | 7216 | if (lto_wrapper_file) |
d7f09764 | 7217 | { |
3c27ce4c | 7218 | lto_wrapper_file = convert_white_space (lto_wrapper_file); |
de9a793e | 7219 | lto_wrapper_spec = lto_wrapper_file; |
d7f09764 DN |
7220 | obstack_init (&collect_obstack); |
7221 | obstack_grow (&collect_obstack, "COLLECT_LTO_WRAPPER=", | |
7222 | sizeof ("COLLECT_LTO_WRAPPER=") - 1); | |
7223 | obstack_grow (&collect_obstack, lto_wrapper_spec, | |
7224 | strlen (lto_wrapper_spec) + 1); | |
7225 | xputenv (XOBFINISH (&collect_obstack, char *)); | |
7226 | } | |
7227 | ||
742a072a | 7228 | } |
ed1f651b | 7229 | |
742a072a DM |
7230 | /* Reject switches that no pass was interested in. */ |
7231 | ||
7232 | void | |
7233 | driver::handle_unrecognized_options () const | |
7234 | { | |
7235 | for (size_t i = 0; (int) i < n_switches; i++) | |
ab87f8c8 | 7236 | if (! switches[i].validated) |
d168aaee | 7237 | error ("unrecognized command line option %<-%s%>", switches[i].part1); |
742a072a | 7238 | } |
ed1f651b | 7239 | |
742a072a DM |
7240 | /* Handle the various -print-* options, returning 0 if the driver |
7241 | should exit, or nonzero if the driver should continue. */ | |
6a9e290e | 7242 | |
742a072a DM |
7243 | int |
7244 | driver::maybe_print_and_exit () const | |
7245 | { | |
2628b9d3 DE |
7246 | if (print_search_dirs) |
7247 | { | |
f4c0a303 CD |
7248 | printf (_("install: %s%s\n"), |
7249 | gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix, | |
7250 | gcc_exec_prefix ? "" : machine_suffix); | |
00dcee0c AM |
7251 | printf (_("programs: %s\n"), |
7252 | build_search_list (&exec_prefixes, "", false, false)); | |
7253 | printf (_("libraries: %s\n"), | |
7254 | build_search_list (&startfile_prefixes, "", false, true)); | |
9257393c | 7255 | return (0); |
2628b9d3 DE |
7256 | } |
7257 | ||
6a9e290e | 7258 | if (print_file_name) |
2dcb563f | 7259 | { |
6a9e290e | 7260 | printf ("%s\n", find_file (print_file_name)); |
9257393c | 7261 | return (0); |
2dcb563f RS |
7262 | } |
7263 | ||
6a9e290e RK |
7264 | if (print_prog_name) |
7265 | { | |
b78e932d L |
7266 | if (use_ld != NULL && ! strcmp (print_prog_name, "ld")) |
7267 | { | |
7268 | /* Append USE_LD to to the default linker. */ | |
7269 | #ifdef DEFAULT_LINKER | |
7270 | char *ld; | |
7271 | # ifdef HAVE_HOST_EXECUTABLE_SUFFIX | |
7272 | int len = (sizeof (DEFAULT_LINKER) | |
7273 | - sizeof (HOST_EXECUTABLE_SUFFIX)); | |
7274 | ld = NULL; | |
7275 | if (len > 0) | |
7276 | { | |
7277 | char *default_linker = xstrdup (DEFAULT_LINKER); | |
7278 | /* Strip HOST_EXECUTABLE_SUFFIX if DEFAULT_LINKER contains | |
7279 | HOST_EXECUTABLE_SUFFIX. */ | |
7280 | if (! strcmp (&default_linker[len], HOST_EXECUTABLE_SUFFIX)) | |
7281 | { | |
7282 | default_linker[len] = '\0'; | |
7283 | ld = concat (default_linker, use_ld, | |
7284 | HOST_EXECUTABLE_SUFFIX, NULL); | |
7285 | } | |
7286 | } | |
7287 | if (ld == NULL) | |
7288 | # endif | |
7289 | ld = concat (DEFAULT_LINKER, use_ld, NULL); | |
7290 | if (access (ld, X_OK) == 0) | |
7291 | { | |
7292 | printf ("%s\n", ld); | |
7293 | return (0); | |
7294 | } | |
7295 | #endif | |
7296 | print_prog_name = concat (print_prog_name, use_ld, NULL); | |
7297 | } | |
5bbcd587 | 7298 | char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK, 0); |
6a9e290e | 7299 | printf ("%s\n", (newname ? newname : print_prog_name)); |
9257393c | 7300 | return (0); |
6a9e290e | 7301 | } |
ed1f651b | 7302 | |
60103a34 DE |
7303 | if (print_multi_lib) |
7304 | { | |
7305 | print_multilib_info (); | |
9257393c | 7306 | return (0); |
60103a34 DE |
7307 | } |
7308 | ||
7309 | if (print_multi_directory) | |
7310 | { | |
7311 | if (multilib_dir == NULL) | |
7312 | printf (".\n"); | |
7313 | else | |
7314 | printf ("%s\n", multilib_dir); | |
9257393c | 7315 | return (0); |
60103a34 DE |
7316 | } |
7317 | ||
e0cdc09f MK |
7318 | if (print_multiarch) |
7319 | { | |
7320 | if (multiarch_dir == NULL) | |
7321 | printf ("\n"); | |
7322 | else | |
7323 | printf ("%s\n", multiarch_dir); | |
7324 | return (0); | |
7325 | } | |
7326 | ||
3def1397 VP |
7327 | if (print_sysroot) |
7328 | { | |
7329 | if (target_system_root) | |
7330 | { | |
7331 | if (target_sysroot_suffix) | |
7332 | printf ("%s%s\n", target_system_root, target_sysroot_suffix); | |
7333 | else | |
7334 | printf ("%s\n", target_system_root); | |
7335 | } | |
7336 | return (0); | |
7337 | } | |
7338 | ||
5bbcd587 JJ |
7339 | if (print_multi_os_directory) |
7340 | { | |
7341 | if (multilib_os_dir == NULL) | |
7342 | printf (".\n"); | |
7343 | else | |
7344 | printf ("%s\n", multilib_os_dir); | |
7345 | return (0); | |
7346 | } | |
7347 | ||
14da6073 JM |
7348 | if (print_sysroot_headers_suffix) |
7349 | { | |
7350 | if (*sysroot_hdrs_suffix_spec) | |
7351 | { | |
dc5bbad3 JM |
7352 | printf("%s\n", (target_sysroot_hdrs_suffix |
7353 | ? target_sysroot_hdrs_suffix | |
7354 | : "")); | |
14da6073 JM |
7355 | return (0); |
7356 | } | |
7357 | else | |
7358 | /* The error status indicates that only one set of fixed | |
7359 | headers should be built. */ | |
2dec80c7 | 7360 | fatal_error ("not configured with sysroot headers suffix"); |
14da6073 JM |
7361 | } |
7362 | ||
b8468bc7 NC |
7363 | if (print_help_list) |
7364 | { | |
7365 | display_help (); | |
7366 | ||
7367 | if (! verbose_flag) | |
7368 | { | |
5e4adfba | 7369 | printf (_("\nFor bug reporting instructions, please see:\n")); |
a976603e | 7370 | printf ("%s.\n", bug_report_url); |
9218435e | 7371 | |
9257393c | 7372 | return (0); |
b8468bc7 NC |
7373 | } |
7374 | ||
7375 | /* We do not exit here. Instead we have created a fake input file | |
7376 | called 'help-dummy' which needs to be compiled, and we pass this | |
033505fc RW |
7377 | on the various sub-processes, along with the --help switch. |
7378 | Ensure their output appears after ours. */ | |
7379 | fputc ('\n', stdout); | |
7380 | fflush (stdout); | |
b8468bc7 | 7381 | } |
9218435e | 7382 | |
41fd0f9b RAE |
7383 | if (print_version) |
7384 | { | |
6afbc885 | 7385 | printf (_("%s %s%s\n"), progname, pkgversion_string, |
41fd0f9b | 7386 | version_string); |
98db73df | 7387 | printf ("Copyright %s 2014 Free Software Foundation, Inc.\n", |
41fd0f9b RAE |
7388 | _("(C)")); |
7389 | fputs (_("This is free software; see the source for copying conditions. There is NO\n\ | |
7390 | warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"), | |
7391 | stdout); | |
7392 | if (! verbose_flag) | |
7393 | return 0; | |
7394 | ||
7395 | /* We do not exit here. We use the same mechanism of --help to print | |
7396 | the version of the sub-processes. */ | |
7397 | fputc ('\n', stdout); | |
7398 | fflush (stdout); | |
7399 | } | |
7400 | ||
ed1f651b RS |
7401 | if (verbose_flag) |
7402 | { | |
dc10fd96 | 7403 | print_configuration (stderr); |
ed1f651b | 7404 | if (n_infiles == 0) |
9257393c | 7405 | return (0); |
ed1f651b RS |
7406 | } |
7407 | ||
742a072a DM |
7408 | return 1; |
7409 | } | |
7410 | ||
7411 | /* Figure out what to do with each input file. | |
7412 | Return true if we need to exit early from "main", false otherwise. */ | |
7413 | ||
7414 | bool | |
7415 | driver::prepare_infiles () | |
7416 | { | |
7417 | size_t i; | |
7418 | int lang_n_infiles = 0; | |
7419 | ||
a2a05b0a | 7420 | if (n_infiles == added_libraries) |
2dec80c7 | 7421 | fatal_error ("no input files"); |
ed1f651b | 7422 | |
4df47bca | 7423 | if (seen_error ()) |
742a072a DM |
7424 | /* Early exit needed from main. */ |
7425 | return true; | |
4df47bca | 7426 | |
ed1f651b RS |
7427 | /* Make a place to record the compiler output file names |
7428 | that correspond to the input files. */ | |
7429 | ||
f271358e | 7430 | i = n_infiles; |
e37cda9b | 7431 | i += lang_specific_extra_outfiles; |
5ed6ace5 | 7432 | outfiles = XCNEWVEC (const char *, i); |
ed1f651b RS |
7433 | |
7434 | /* Record which files were specified explicitly as link input. */ | |
7435 | ||
d900f77d | 7436 | explicit_link_files = XCNEWVEC (char, n_infiles); |
ed1f651b | 7437 | |
56b721c5 | 7438 | combine_inputs = have_o || flag_wpa; |
0855eab7 CT |
7439 | |
7440 | for (i = 0; (int) i < n_infiles; i++) | |
d1bd0ded | 7441 | { |
0855eab7 | 7442 | const char *name = infiles[i].name; |
7904f95f EC |
7443 | struct compiler *compiler = lookup_compiler (name, |
7444 | strlen (name), | |
0855eab7 | 7445 | infiles[i].language); |
7904f95f | 7446 | |
0855eab7 CT |
7447 | if (compiler && !(compiler->combinable)) |
7448 | combine_inputs = false; | |
7904f95f | 7449 | |
0855eab7 CT |
7450 | if (lang_n_infiles > 0 && compiler != input_file_compiler |
7451 | && infiles[i].language && infiles[i].language[0] != '*') | |
7452 | infiles[i].incompiler = compiler; | |
7453 | else if (compiler) | |
7454 | { | |
7455 | lang_n_infiles++; | |
7456 | input_file_compiler = compiler; | |
7457 | infiles[i].incompiler = compiler; | |
7458 | } | |
7459 | else | |
7460 | { | |
7461 | /* Since there is no compiler for this input file, assume it is a | |
9cf737f8 | 7462 | linker file. */ |
0855eab7 CT |
7463 | explicit_link_files[i] = 1; |
7464 | infiles[i].incompiler = NULL; | |
7465 | } | |
7466 | infiles[i].compiled = false; | |
7467 | infiles[i].preprocessed = false; | |
d1bd0ded | 7468 | } |
953ff289 | 7469 | |
de19a50e | 7470 | if (!combine_inputs && have_c && have_o && lang_n_infiles > 1) |
c3224d6f | 7471 | fatal_error ("cannot specify -o with -c, -S or -E with multiple files"); |
0855eab7 | 7472 | |
742a072a DM |
7473 | /* No early exit needed from main; we can continue. */ |
7474 | return false; | |
7475 | } | |
7476 | ||
7477 | /* Run the spec machinery on each input file. */ | |
7478 | ||
7479 | void | |
7480 | driver::do_spec_on_infiles () const | |
7481 | { | |
7482 | size_t i; | |
7483 | ||
0855eab7 | 7484 | for (i = 0; (int) i < n_infiles; i++) |
ed1f651b | 7485 | { |
ed1f651b RS |
7486 | int this_file_error = 0; |
7487 | ||
7488 | /* Tell do_spec what to substitute for %i. */ | |
7489 | ||
ed1f651b | 7490 | input_file_number = i; |
512b62fb | 7491 | set_input (infiles[i].name); |
ed1f651b | 7492 | |
0855eab7 CT |
7493 | if (infiles[i].compiled) |
7494 | continue; | |
7495 | ||
ed1f651b RS |
7496 | /* Use the same thing in %o, unless cp->spec says otherwise. */ |
7497 | ||
6afbc885 | 7498 | outfiles[i] = gcc_input_filename; |
ed1f651b RS |
7499 | |
7500 | /* Figure out which compiler from the file's suffix. */ | |
7501 | ||
c3224d6f RG |
7502 | input_file_compiler |
7503 | = lookup_compiler (infiles[i].name, input_filename_length, | |
7504 | infiles[i].language); | |
589005ff | 7505 | |
a9374841 | 7506 | if (input_file_compiler) |
ed1f651b RS |
7507 | { |
7508 | /* Ok, we found an applicable compiler. Run its spec. */ | |
ed1f651b | 7509 | |
a9374841 | 7510 | if (input_file_compiler->spec[0] == '#') |
d644be7b ZW |
7511 | { |
7512 | error ("%s: %s compiler not installed on this system", | |
6afbc885 | 7513 | gcc_input_filename, &input_file_compiler->spec[1]); |
d644be7b ZW |
7514 | this_file_error = 1; |
7515 | } | |
7516 | else | |
7517 | { | |
742a072a DM |
7518 | int value; |
7519 | ||
2153915d AO |
7520 | if (compare_debug) |
7521 | { | |
04695783 | 7522 | free (debug_check_temp_file[0]); |
2153915d AO |
7523 | debug_check_temp_file[0] = NULL; |
7524 | ||
04695783 | 7525 | free (debug_check_temp_file[1]); |
2153915d AO |
7526 | debug_check_temp_file[1] = NULL; |
7527 | } | |
7528 | ||
d644be7b | 7529 | value = do_spec (input_file_compiler->spec); |
0855eab7 | 7530 | infiles[i].compiled = true; |
d644be7b | 7531 | if (value < 0) |
b21292d0 | 7532 | this_file_error = 1; |
2153915d AO |
7533 | else if (compare_debug && debug_check_temp_file[0]) |
7534 | { | |
7535 | if (verbose_flag) | |
2dec80c7 | 7536 | inform (0, "recompiling with -fcompare-debug"); |
2153915d AO |
7537 | |
7538 | compare_debug = -compare_debug; | |
7539 | n_switches = n_switches_debug_check[1]; | |
efe5e5a0 | 7540 | n_switches_alloc = n_switches_alloc_debug_check[1]; |
2153915d AO |
7541 | switches = switches_debug_check[1]; |
7542 | ||
7543 | value = do_spec (input_file_compiler->spec); | |
7544 | ||
7545 | compare_debug = -compare_debug; | |
7546 | n_switches = n_switches_debug_check[0]; | |
efe5e5a0 | 7547 | n_switches_alloc = n_switches_alloc_debug_check[0]; |
2153915d AO |
7548 | switches = switches_debug_check[0]; |
7549 | ||
7550 | if (value < 0) | |
7551 | { | |
7552 | error ("during -fcompare-debug recompilation"); | |
7553 | this_file_error = 1; | |
7554 | } | |
7555 | ||
7556 | gcc_assert (debug_check_temp_file[1] | |
ba78087b KT |
7557 | && filename_cmp (debug_check_temp_file[0], |
7558 | debug_check_temp_file[1])); | |
2153915d AO |
7559 | |
7560 | if (verbose_flag) | |
2dec80c7 | 7561 | inform (0, "comparing final insns dumps"); |
2153915d AO |
7562 | |
7563 | if (compare_files (debug_check_temp_file)) | |
7564 | this_file_error = 1; | |
7565 | } | |
7566 | ||
7567 | if (compare_debug) | |
7568 | { | |
04695783 | 7569 | free (debug_check_temp_file[0]); |
2153915d AO |
7570 | debug_check_temp_file[0] = NULL; |
7571 | ||
04695783 | 7572 | free (debug_check_temp_file[1]); |
2153915d AO |
7573 | debug_check_temp_file[1] = NULL; |
7574 | } | |
d644be7b | 7575 | } |
ed1f651b RS |
7576 | } |
7577 | ||
7578 | /* If this file's name does not contain a recognized suffix, | |
7579 | record it as explicit linker input. */ | |
7580 | ||
7581 | else | |
7582 | explicit_link_files[i] = 1; | |
7583 | ||
7584 | /* Clear the delete-on-failure queue, deleting the files in it | |
7585 | if this compilation failed. */ | |
7586 | ||
7587 | if (this_file_error) | |
7588 | { | |
7589 | delete_failure_queue (); | |
6afbc885 | 7590 | errorcount++; |
ed1f651b RS |
7591 | } |
7592 | /* If this compilation succeeded, don't delete those files later. */ | |
7593 | clear_failure_queue (); | |
7594 | } | |
7595 | ||
817a8255 EC |
7596 | /* Reset the input file name to the first compile/object file name, for use |
7597 | with %b in LINK_SPEC. We use the first input file that we can find | |
7904f95f | 7598 | a compiler to compile it instead of using infiles.language since for |
817a8255 | 7599 | languages other than C we use aliases that we then lookup later. */ |
512b62fb | 7600 | if (n_infiles > 0) |
817a8255 EC |
7601 | { |
7602 | int i; | |
7603 | ||
7604 | for (i = 0; i < n_infiles ; i++) | |
42113d6b RG |
7605 | if (infiles[i].incompiler |
7606 | || (infiles[i].language && infiles[i].language[0] != '*')) | |
817a8255 EC |
7607 | { |
7608 | set_input (infiles[i].name); | |
7609 | break; | |
7610 | } | |
7611 | } | |
512b62fb | 7612 | |
6afbc885 | 7613 | if (!seen_error ()) |
15c5edb9 TT |
7614 | { |
7615 | /* Make sure INPUT_FILE_NUMBER points to first available open | |
7616 | slot. */ | |
7617 | input_file_number = n_infiles; | |
7618 | if (lang_specific_pre_link ()) | |
6afbc885 | 7619 | errorcount++; |
15c5edb9 | 7620 | } |
742a072a DM |
7621 | } |
7622 | ||
7623 | /* If we have to run the linker, do it now. */ | |
7624 | ||
7625 | void | |
7626 | driver::maybe_run_linker (const char *argv0) const | |
7627 | { | |
7628 | size_t i; | |
7629 | int linker_was_run = 0; | |
7630 | int num_linker_inputs; | |
f271358e | 7631 | |
17211ab5 GK |
7632 | /* Determine if there are any linker input files. */ |
7633 | num_linker_inputs = 0; | |
7634 | for (i = 0; (int) i < n_infiles; i++) | |
7635 | if (explicit_link_files[i] || outfiles[i] != NULL) | |
7636 | num_linker_inputs++; | |
7637 | ||
ed1f651b RS |
7638 | /* Run ld to link all the compiler output files. */ |
7639 | ||
6afbc885 | 7640 | if (num_linker_inputs > 0 && !seen_error () && print_subprocess_help < 2) |
ed1f651b RS |
7641 | { |
7642 | int tmp = execution_count; | |
117cb2bc JJ |
7643 | |
7644 | if (! have_c) | |
7645 | { | |
55b46574 RO |
7646 | #if HAVE_LTO_PLUGIN > 0 |
7647 | #if HAVE_LTO_PLUGIN == 2 | |
117cb2bc | 7648 | const char *fno_use_linker_plugin = "fno-use-linker-plugin"; |
96bdf9b4 | 7649 | #else |
117cb2bc | 7650 | const char *fuse_linker_plugin = "fuse-linker-plugin"; |
55b46574 | 7651 | #endif |
96bdf9b4 | 7652 | #endif |
b3865ca9 | 7653 | |
117cb2bc JJ |
7654 | /* We'll use ld if we can't find collect2. */ |
7655 | if (! strcmp (linker_name_spec, "collect2")) | |
7656 | { | |
7657 | char *s = find_a_file (&exec_prefixes, "collect2", X_OK, false); | |
7658 | if (s == NULL) | |
7659 | linker_name_spec = "ld"; | |
7660 | } | |
d7f09764 | 7661 | |
55b46574 RO |
7662 | #if HAVE_LTO_PLUGIN > 0 |
7663 | #if HAVE_LTO_PLUGIN == 2 | |
117cb2bc JJ |
7664 | if (!switch_matches (fno_use_linker_plugin, |
7665 | fno_use_linker_plugin | |
7666 | + strlen (fno_use_linker_plugin), 0)) | |
96bdf9b4 | 7667 | #else |
117cb2bc JJ |
7668 | if (switch_matches (fuse_linker_plugin, |
7669 | fuse_linker_plugin | |
7670 | + strlen (fuse_linker_plugin), 0)) | |
96bdf9b4 | 7671 | #endif |
117cb2bc | 7672 | { |
3c27ce4c JY |
7673 | char *temp_spec = find_a_file (&exec_prefixes, |
7674 | LTOPLUGINSONAME, R_OK, | |
7675 | false); | |
7676 | if (!temp_spec) | |
117cb2bc JJ |
7677 | fatal_error ("-fuse-linker-plugin, but %s not found", |
7678 | LTOPLUGINSONAME); | |
3c27ce4c | 7679 | linker_plugin_file_spec = convert_white_space (temp_spec); |
117cb2bc | 7680 | } |
55b46574 | 7681 | #endif |
742a072a | 7682 | lto_gcc_spec = argv0; |
117cb2bc | 7683 | } |
d7f09764 | 7684 | |
b3865ca9 RS |
7685 | /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables |
7686 | for collect. */ | |
00dcee0c AM |
7687 | putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH", false); |
7688 | putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV, true); | |
b3865ca9 | 7689 | |
a0f87454 RS |
7690 | if (print_subprocess_help == 1) |
7691 | { | |
7692 | printf (_("\nLinker options\n==============\n\n")); | |
7693 | printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\"" | |
7694 | " to the linker.\n\n")); | |
7695 | fflush (stdout); | |
7696 | } | |
742a072a | 7697 | int value = do_spec (link_command_spec); |
ed1f651b | 7698 | if (value < 0) |
6afbc885 | 7699 | errorcount = 1; |
ed1f651b RS |
7700 | linker_was_run = (tmp != execution_count); |
7701 | } | |
7702 | ||
ed1f651b RS |
7703 | /* If options said don't run linker, |
7704 | complain about input files to be given to the linker. */ | |
7705 | ||
6afbc885 | 7706 | if (! linker_was_run && !seen_error ()) |
d25a45d4 | 7707 | for (i = 0; (int) i < n_infiles; i++) |
01e4dd0d KH |
7708 | if (explicit_link_files[i] |
7709 | && !(infiles[i].language && infiles[i].language[0] == '*')) | |
2dec80c7 JM |
7710 | warning (0, "%s: linker input file unused because linking not done", |
7711 | outfiles[i]); | |
742a072a DM |
7712 | } |
7713 | ||
7714 | /* The end of "main". */ | |
ed1f651b | 7715 | |
742a072a DM |
7716 | void |
7717 | driver::final_actions () const | |
7718 | { | |
ed1f651b RS |
7719 | /* Delete some or all of the temporary files we made. */ |
7720 | ||
6afbc885 | 7721 | if (seen_error ()) |
ed1f651b RS |
7722 | delete_failure_queue (); |
7723 | delete_temp_files (); | |
7724 | ||
b8468bc7 NC |
7725 | if (print_help_list) |
7726 | { | |
5e4adfba | 7727 | printf (("\nFor bug reporting instructions, please see:\n")); |
a976603e | 7728 | printf ("%s\n", bug_report_url); |
b8468bc7 | 7729 | } |
742a072a | 7730 | } |
9218435e | 7731 | |
742a072a DM |
7732 | /* Determine what the exit code of the driver should be. */ |
7733 | ||
7734 | int | |
7735 | driver::get_exit_code () const | |
7736 | { | |
14a774a9 | 7737 | return (signal_count != 0 ? 2 |
6afbc885 | 7738 | : seen_error () ? (pass_exit_codes ? greatest_status : 1) |
14a774a9 | 7739 | : 0); |
ed1f651b RS |
7740 | } |
7741 | ||
7742 | /* Find the proper compilation spec for the file name NAME, | |
004fd4d5 | 7743 | whose length is LENGTH. LANGUAGE is the specified language, |
e5e809f4 | 7744 | or 0 if this file is to be passed to the linker. */ |
ed1f651b RS |
7745 | |
7746 | static struct compiler * | |
1d088dee | 7747 | lookup_compiler (const char *name, size_t length, const char *language) |
ed1f651b RS |
7748 | { |
7749 | struct compiler *cp; | |
7750 | ||
3ac63d94 | 7751 | /* If this was specified by the user to be a linker input, indicate that. */ |
e5e809f4 JL |
7752 | if (language != 0 && language[0] == '*') |
7753 | return 0; | |
7754 | ||
7755 | /* Otherwise, look for the language, if one is spec'd. */ | |
ed1f651b RS |
7756 | if (language != 0) |
7757 | { | |
7758 | for (cp = compilers + n_compilers - 1; cp >= compilers; cp--) | |
e5e809f4 JL |
7759 | if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language)) |
7760 | return cp; | |
7761 | ||
ed1f651b | 7762 | error ("language %s not recognized", language); |
e5e809f4 | 7763 | return 0; |
ed1f651b RS |
7764 | } |
7765 | ||
7766 | /* Look for a suffix. */ | |
7767 | for (cp = compilers + n_compilers - 1; cp >= compilers; cp--) | |
7768 | { | |
4cf3301c RS |
7769 | if (/* The suffix `-' matches only the file name `-'. */ |
7770 | (!strcmp (cp->suffix, "-") && !strcmp (name, "-")) | |
e5e809f4 JL |
7771 | || (strlen (cp->suffix) < length |
7772 | /* See if the suffix matches the end of NAME. */ | |
e5e809f4 JL |
7773 | && !strcmp (cp->suffix, |
7774 | name + length - strlen (cp->suffix)) | |
e5e809f4 | 7775 | )) |
589005ff | 7776 | break; |
03bf1c28 | 7777 | } |
e5e809f4 | 7778 | |
03bf1c28 | 7779 | #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM) |
a1105617 | 7780 | /* Look again, but case-insensitively this time. */ |
03bf1c28 MK |
7781 | if (cp < compilers) |
7782 | for (cp = compilers + n_compilers - 1; cp >= compilers; cp--) | |
7783 | { | |
7784 | if (/* The suffix `-' matches only the file name `-'. */ | |
7785 | (!strcmp (cp->suffix, "-") && !strcmp (name, "-")) | |
7786 | || (strlen (cp->suffix) < length | |
7787 | /* See if the suffix matches the end of NAME. */ | |
7788 | && ((!strcmp (cp->suffix, | |
7789 | name + length - strlen (cp->suffix)) | |
7790 | || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")) | |
7791 | && !strcasecmp (cp->suffix, | |
7792 | name + length - strlen (cp->suffix))) | |
7793 | )) | |
7794 | break; | |
7795 | } | |
7796 | #endif | |
7797 | ||
03bf1c28 MK |
7798 | if (cp >= compilers) |
7799 | { | |
ea414c97 ZW |
7800 | if (cp->spec[0] != '@') |
7801 | /* A non-alias entry: return it. */ | |
7802 | return cp; | |
9218435e | 7803 | |
ea414c97 ZW |
7804 | /* An alias entry maps a suffix to a language. |
7805 | Search for the language; pass 0 for NAME and LENGTH | |
7806 | to avoid infinite recursion if language not found. */ | |
6496a589 | 7807 | return lookup_compiler (NULL, 0, cp->spec + 1); |
ed1f651b | 7808 | } |
ed1f651b RS |
7809 | return 0; |
7810 | } | |
7811 | \f | |
ed1f651b | 7812 | static char * |
1d088dee | 7813 | save_string (const char *s, int len) |
ed1f651b | 7814 | { |
5ed6ace5 | 7815 | char *result = XNEWVEC (char, len + 1); |
ed1f651b | 7816 | |
da61dec9 | 7817 | memcpy (result, s, len); |
ed1f651b RS |
7818 | result[len] = 0; |
7819 | return result; | |
7820 | } | |
7821 | ||
d991c721 | 7822 | void |
1d088dee | 7823 | pfatal_with_name (const char *name) |
ed1f651b | 7824 | { |
ab87f8c8 JL |
7825 | perror_with_name (name); |
7826 | delete_temp_files (); | |
7827 | exit (1); | |
ed1f651b RS |
7828 | } |
7829 | ||
7830 | static void | |
1d088dee | 7831 | perror_with_name (const char *name) |
ed1f651b | 7832 | { |
bdc6b402 | 7833 | error ("%s: %m", name); |
ed1f651b | 7834 | } |
ed1f651b | 7835 | \f |
4977bab6 | 7836 | static inline void |
d168aaee | 7837 | validate_switches_from_spec (const char *spec, bool user) |
4977bab6 ZW |
7838 | { |
7839 | const char *p = spec; | |
7840 | char c; | |
7841 | while ((c = *p++)) | |
7842 | if (c == '%' && (*p == '{' || *p == '<' || (*p == 'W' && *++p == '{'))) | |
7843 | /* We have a switch spec. */ | |
d168aaee | 7844 | p = validate_switches (p + 1, user); |
4977bab6 ZW |
7845 | } |
7846 | ||
ed1f651b | 7847 | static void |
1d088dee | 7848 | validate_all_switches (void) |
ed1f651b RS |
7849 | { |
7850 | struct compiler *comp; | |
b3865ca9 | 7851 | struct spec_list *spec; |
ed1f651b | 7852 | |
ea414c97 | 7853 | for (comp = compilers; comp->spec; comp++) |
d168aaee | 7854 | validate_switches_from_spec (comp->spec, false); |
ed1f651b | 7855 | |
3ac63d94 | 7856 | /* Look through the linked list of specs read from the specs file. */ |
d25a45d4 | 7857 | for (spec = specs; spec; spec = spec->next) |
d168aaee | 7858 | validate_switches_from_spec (*spec->ptr_spec, spec->user_p); |
b3865ca9 | 7859 | |
d168aaee | 7860 | validate_switches_from_spec (link_command_spec, false); |
ed1f651b RS |
7861 | } |
7862 | ||
7863 | /* Look at the switch-name that comes after START | |
7864 | and mark as valid all supplied switches that match it. */ | |
7865 | ||
4977bab6 | 7866 | static const char * |
d168aaee | 7867 | validate_switches (const char *start, bool user_spec) |
ed1f651b | 7868 | { |
b3694847 | 7869 | const char *p = start; |
4977bab6 ZW |
7870 | const char *atom; |
7871 | size_t len; | |
b3694847 | 7872 | int i; |
4977bab6 ZW |
7873 | bool suffix = false; |
7874 | bool starred = false; | |
1d088dee | 7875 | |
4977bab6 | 7876 | #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0) |
1d088dee | 7877 | |
10ebf5fe | 7878 | next_member: |
4977bab6 ZW |
7879 | SKIP_WHITE (); |
7880 | ||
ed1f651b | 7881 | if (*p == '!') |
4977bab6 | 7882 | p++; |
ed1f651b | 7883 | |
4977bab6 | 7884 | SKIP_WHITE (); |
48137d59 | 7885 | if (*p == '.' || *p == ',') |
4977bab6 | 7886 | suffix = true, p++; |
ed1f651b | 7887 | |
4977bab6 ZW |
7888 | atom = p; |
7889 | while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '=' | |
7a975113 | 7890 | || *p == ',' || *p == '.' || *p == '@') |
d25a45d4 | 7891 | p++; |
4977bab6 | 7892 | len = p - atom; |
ed1f651b | 7893 | |
4977bab6 ZW |
7894 | if (*p == '*') |
7895 | starred = true, p++; | |
7896 | ||
7897 | SKIP_WHITE (); | |
7898 | ||
7899 | if (!suffix) | |
ed1f651b RS |
7900 | { |
7901 | /* Mark all matching switches as valid. */ | |
ed1f651b | 7902 | for (i = 0; i < n_switches; i++) |
4977bab6 | 7903 | if (!strncmp (switches[i].part1, atom, len) |
d168aaee CB |
7904 | && (starred || switches[i].part1[len] == '\0') |
7905 | && (switches[i].known || user_spec)) | |
7906 | switches[i].validated = true; | |
ed1f651b | 7907 | } |
4977bab6 | 7908 | |
5a0ba8c9 LJR |
7909 | if (*p) p++; |
7910 | if (*p && (p[-1] == '|' || p[-1] == '&')) | |
4977bab6 ZW |
7911 | goto next_member; |
7912 | ||
5a0ba8c9 | 7913 | if (*p && p[-1] == ':') |
ed1f651b | 7914 | { |
4977bab6 | 7915 | while (*p && *p != ';' && *p != '}') |
ed1f651b | 7916 | { |
4977bab6 ZW |
7917 | if (*p == '%') |
7918 | { | |
7919 | p++; | |
7920 | if (*p == '{' || *p == '<') | |
d168aaee | 7921 | p = validate_switches (p+1, user_spec); |
4977bab6 | 7922 | else if (p[0] == 'W' && p[1] == '{') |
d168aaee | 7923 | p = validate_switches (p+2, user_spec); |
4977bab6 | 7924 | } |
e17aafd1 GK |
7925 | else |
7926 | p++; | |
ed1f651b | 7927 | } |
4977bab6 | 7928 | |
5a0ba8c9 LJR |
7929 | if (*p) p++; |
7930 | if (*p && p[-1] == ';') | |
4977bab6 | 7931 | goto next_member; |
ed1f651b | 7932 | } |
10ebf5fe | 7933 | |
4977bab6 ZW |
7934 | return p; |
7935 | #undef SKIP_WHITE | |
ed1f651b | 7936 | } |
60103a34 | 7937 | \f |
5bbcd587 JJ |
7938 | struct mdswitchstr |
7939 | { | |
7940 | const char *str; | |
7941 | int len; | |
7942 | }; | |
7943 | ||
7944 | static struct mdswitchstr *mdswitches; | |
7945 | static int n_mdswitches; | |
7946 | ||
961b7009 | 7947 | /* Check whether a particular argument was used. The first time we |
956d6950 | 7948 | canonicalize the switches to keep only the ones we care about. */ |
60103a34 DE |
7949 | |
7950 | static int | |
1d088dee | 7951 | used_arg (const char *p, int len) |
60103a34 | 7952 | { |
3ac63d94 NC |
7953 | struct mswitchstr |
7954 | { | |
3b304f5b ZW |
7955 | const char *str; |
7956 | const char *replace; | |
961b7009 MM |
7957 | int len; |
7958 | int rep_len; | |
7959 | }; | |
7960 | ||
7961 | static struct mswitchstr *mswitches; | |
7962 | static int n_mswitches; | |
7963 | int i, j; | |
7964 | ||
7965 | if (!mswitches) | |
7966 | { | |
7967 | struct mswitchstr *matches; | |
3b304f5b | 7968 | const char *q; |
c8c2dcdc | 7969 | int cnt = 0; |
961b7009 | 7970 | |
d25a45d4 KH |
7971 | /* Break multilib_matches into the component strings of string |
7972 | and replacement string. */ | |
1a0bdd29 RK |
7973 | for (q = multilib_matches; *q != '\0'; q++) |
7974 | if (*q == ';') | |
961b7009 MM |
7975 | cnt++; |
7976 | ||
e1e4cdc4 KG |
7977 | matches |
7978 | = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt); | |
961b7009 MM |
7979 | i = 0; |
7980 | q = multilib_matches; | |
7981 | while (*q != '\0') | |
7982 | { | |
7983 | matches[i].str = q; | |
7984 | while (*q != ' ') | |
7985 | { | |
7986 | if (*q == '\0') | |
3b5edfee NS |
7987 | { |
7988 | invalid_matches: | |
bdc6b402 | 7989 | fatal_error ("multilib spec %qs is invalid", |
2dec80c7 | 7990 | multilib_matches); |
3b5edfee | 7991 | } |
961b7009 MM |
7992 | q++; |
7993 | } | |
961b7009 | 7994 | matches[i].len = q - matches[i].str; |
60103a34 | 7995 | |
961b7009 MM |
7996 | matches[i].replace = ++q; |
7997 | while (*q != ';' && *q != '\0') | |
7998 | { | |
7999 | if (*q == ' ') | |
3b5edfee | 8000 | goto invalid_matches; |
961b7009 MM |
8001 | q++; |
8002 | } | |
8003 | matches[i].rep_len = q - matches[i].replace; | |
8004 | i++; | |
83a0c799 ZW |
8005 | if (*q == ';') |
8006 | q++; | |
961b7009 | 8007 | } |
60103a34 | 8008 | |
71591a1d JW |
8009 | /* Now build a list of the replacement string for switches that we care |
8010 | about. Make sure we allocate at least one entry. This prevents | |
8011 | xmalloc from calling fatal, and prevents us from re-executing this | |
8012 | block of code. */ | |
8013 | mswitches | |
5ed6ace5 | 8014 | = XNEWVEC (struct mswitchstr, n_mdswitches + (n_switches ? n_switches : 1)); |
961b7009 | 8015 | for (i = 0; i < n_switches; i++) |
3371362c | 8016 | if ((switches[i].live_cond & SWITCH_IGNORE) == 0) |
f645e2bd RS |
8017 | { |
8018 | int xlen = strlen (switches[i].part1); | |
8019 | for (j = 0; j < cnt; j++) | |
8020 | if (xlen == matches[j].len | |
8021 | && ! strncmp (switches[i].part1, matches[j].str, xlen)) | |
8022 | { | |
8023 | mswitches[n_mswitches].str = matches[j].replace; | |
8024 | mswitches[n_mswitches].len = matches[j].rep_len; | |
8025 | mswitches[n_mswitches].replace = (char *) 0; | |
8026 | mswitches[n_mswitches].rep_len = 0; | |
8027 | n_mswitches++; | |
8028 | break; | |
8029 | } | |
8030 | } | |
5bbcd587 JJ |
8031 | |
8032 | /* Add MULTILIB_DEFAULTS switches too, as long as they were not present | |
8033 | on the command line nor any options mutually incompatible with | |
8034 | them. */ | |
8035 | for (i = 0; i < n_mdswitches; i++) | |
8036 | { | |
8037 | const char *r; | |
8038 | ||
59b266b1 | 8039 | for (q = multilib_options; *q != '\0'; *q && q++) |
5bbcd587 JJ |
8040 | { |
8041 | while (*q == ' ') | |
8042 | q++; | |
8043 | ||
8044 | r = q; | |
8045 | while (strncmp (q, mdswitches[i].str, mdswitches[i].len) != 0 | |
8046 | || strchr (" /", q[mdswitches[i].len]) == NULL) | |
8047 | { | |
8048 | while (*q != ' ' && *q != '/' && *q != '\0') | |
8049 | q++; | |
8050 | if (*q != '/') | |
8051 | break; | |
8052 | q++; | |
8053 | } | |
8054 | ||
8055 | if (*q != ' ' && *q != '\0') | |
8056 | { | |
8057 | while (*r != ' ' && *r != '\0') | |
8058 | { | |
8059 | q = r; | |
8060 | while (*q != ' ' && *q != '/' && *q != '\0') | |
8061 | q++; | |
8062 | ||
8063 | if (used_arg (r, q - r)) | |
8064 | break; | |
8065 | ||
8066 | if (*q != '/') | |
8067 | { | |
8068 | mswitches[n_mswitches].str = mdswitches[i].str; | |
8069 | mswitches[n_mswitches].len = mdswitches[i].len; | |
8070 | mswitches[n_mswitches].replace = (char *) 0; | |
8071 | mswitches[n_mswitches].rep_len = 0; | |
8072 | n_mswitches++; | |
8073 | break; | |
8074 | } | |
8075 | ||
8076 | r = q + 1; | |
8077 | } | |
8078 | break; | |
8079 | } | |
8080 | } | |
8081 | } | |
961b7009 | 8082 | } |
03c42484 | 8083 | |
961b7009 MM |
8084 | for (i = 0; i < n_mswitches; i++) |
8085 | if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len)) | |
8086 | return 1; | |
03c42484 | 8087 | |
961b7009 MM |
8088 | return 0; |
8089 | } | |
03c42484 RK |
8090 | |
8091 | static int | |
1d088dee | 8092 | default_arg (const char *p, int len) |
03c42484 | 8093 | { |
5bbcd587 | 8094 | int i; |
e29ef920 | 8095 | |
5bbcd587 JJ |
8096 | for (i = 0; i < n_mdswitches; i++) |
8097 | if (len == mdswitches[i].len && ! strncmp (p, mdswitches[i].str, len)) | |
8098 | return 1; | |
03c42484 RK |
8099 | |
8100 | return 0; | |
8101 | } | |
8102 | ||
0a8d6618 BC |
8103 | /* Work out the subdirectory to use based on the options. The format of |
8104 | multilib_select is a list of elements. Each element is a subdirectory | |
8105 | name followed by a list of options followed by a semicolon. The format | |
8106 | of multilib_exclusions is the same, but without the preceding | |
8107 | directory. First gcc will check the exclusions, if none of the options | |
8108 | beginning with an exclamation point are present, and all of the other | |
8109 | options are present, then we will ignore this completely. Passing | |
8110 | that, gcc will consider each multilib_select in turn using the same | |
8111 | rules for matching the options. If a match is found, that subdirectory | |
e0cdc09f MK |
8112 | will be used. |
8113 | A subdirectory name is optionally followed by a colon and the corresponding | |
8114 | multiarch name. */ | |
60103a34 DE |
8115 | |
8116 | static void | |
1d088dee | 8117 | set_multilib_dir (void) |
60103a34 | 8118 | { |
3b304f5b | 8119 | const char *p; |
3ac63d94 | 8120 | unsigned int this_path_len; |
3b304f5b | 8121 | const char *this_path, *this_arg; |
5bbcd587 | 8122 | const char *start, *end; |
03c42484 | 8123 | int not_arg; |
5bbcd587 JJ |
8124 | int ok, ndfltok, first; |
8125 | ||
8126 | n_mdswitches = 0; | |
8127 | start = multilib_defaults; | |
8128 | while (*start == ' ' || *start == '\t') | |
8129 | start++; | |
8130 | while (*start != '\0') | |
8131 | { | |
8132 | n_mdswitches++; | |
8133 | while (*start != ' ' && *start != '\t' && *start != '\0') | |
8134 | start++; | |
8135 | while (*start == ' ' || *start == '\t') | |
8136 | start++; | |
8137 | } | |
8138 | ||
8139 | if (n_mdswitches) | |
8140 | { | |
8141 | int i = 0; | |
8142 | ||
5ed6ace5 | 8143 | mdswitches = XNEWVEC (struct mdswitchstr, n_mdswitches); |
5bbcd587 JJ |
8144 | for (start = multilib_defaults; *start != '\0'; start = end + 1) |
8145 | { | |
8146 | while (*start == ' ' || *start == '\t') | |
8147 | start++; | |
8148 | ||
8149 | if (*start == '\0') | |
8150 | break; | |
1d088dee | 8151 | |
5bbcd587 JJ |
8152 | for (end = start + 1; |
8153 | *end != ' ' && *end != '\t' && *end != '\0'; end++) | |
8154 | ; | |
8155 | ||
8156 | obstack_grow (&multilib_obstack, start, end - start); | |
8157 | obstack_1grow (&multilib_obstack, 0); | |
7973fd2a | 8158 | mdswitches[i].str = XOBFINISH (&multilib_obstack, const char *); |
5bbcd587 JJ |
8159 | mdswitches[i++].len = end - start; |
8160 | ||
8161 | if (*end == '\0') | |
8162 | break; | |
8163 | } | |
8164 | } | |
60103a34 | 8165 | |
0a8d6618 BC |
8166 | p = multilib_exclusions; |
8167 | while (*p != '\0') | |
8168 | { | |
8169 | /* Ignore newlines. */ | |
8170 | if (*p == '\n') | |
d25a45d4 KH |
8171 | { |
8172 | ++p; | |
8173 | continue; | |
8174 | } | |
0a8d6618 BC |
8175 | |
8176 | /* Check the arguments. */ | |
8177 | ok = 1; | |
8178 | while (*p != ';') | |
d25a45d4 KH |
8179 | { |
8180 | if (*p == '\0') | |
3b5edfee NS |
8181 | { |
8182 | invalid_exclusions: | |
bdc6b402 | 8183 | fatal_error ("multilib exclusions %qs is invalid", |
2dec80c7 | 8184 | multilib_exclusions); |
3b5edfee | 8185 | } |
d25a45d4 KH |
8186 | |
8187 | if (! ok) | |
8188 | { | |
8189 | ++p; | |
8190 | continue; | |
8191 | } | |
8192 | ||
8193 | this_arg = p; | |
8194 | while (*p != ' ' && *p != ';') | |
8195 | { | |
8196 | if (*p == '\0') | |
3b5edfee | 8197 | goto invalid_exclusions; |
d25a45d4 KH |
8198 | ++p; |
8199 | } | |
8200 | ||
8201 | if (*this_arg != '!') | |
8202 | not_arg = 0; | |
8203 | else | |
8204 | { | |
8205 | not_arg = 1; | |
8206 | ++this_arg; | |
8207 | } | |
9218435e | 8208 | |
0a8d6618 BC |
8209 | ok = used_arg (this_arg, p - this_arg); |
8210 | if (not_arg) | |
8211 | ok = ! ok; | |
8212 | ||
d25a45d4 KH |
8213 | if (*p == ' ') |
8214 | ++p; | |
8215 | } | |
0a8d6618 BC |
8216 | |
8217 | if (ok) | |
3ac63d94 | 8218 | return; |
0a8d6618 BC |
8219 | |
8220 | ++p; | |
8221 | } | |
8222 | ||
5bbcd587 | 8223 | first = 1; |
0a8d6618 | 8224 | p = multilib_select; |
e7f49d92 TG |
8225 | |
8226 | /* Append multilib reuse rules if any. With those rules, we can reuse | |
8227 | one multilib for certain different options sets. */ | |
8228 | if (strlen (multilib_reuse) > 0) | |
8229 | p = concat (p, multilib_reuse, NULL); | |
8230 | ||
60103a34 DE |
8231 | while (*p != '\0') |
8232 | { | |
8233 | /* Ignore newlines. */ | |
8234 | if (*p == '\n') | |
8235 | { | |
8236 | ++p; | |
8237 | continue; | |
8238 | } | |
8239 | ||
8240 | /* Get the initial path. */ | |
8241 | this_path = p; | |
8242 | while (*p != ' ') | |
8243 | { | |
8244 | if (*p == '\0') | |
3b5edfee NS |
8245 | { |
8246 | invalid_select: | |
e7f49d92 TG |
8247 | fatal_error ("multilib select %qs %qs is invalid", |
8248 | multilib_select, multilib_reuse); | |
3b5edfee | 8249 | } |
60103a34 DE |
8250 | ++p; |
8251 | } | |
8252 | this_path_len = p - this_path; | |
8253 | ||
8254 | /* Check the arguments. */ | |
03c42484 | 8255 | ok = 1; |
5bbcd587 | 8256 | ndfltok = 1; |
60103a34 DE |
8257 | ++p; |
8258 | while (*p != ';') | |
8259 | { | |
8260 | if (*p == '\0') | |
3b5edfee | 8261 | goto invalid_select; |
60103a34 | 8262 | |
03c42484 | 8263 | if (! ok) |
60103a34 DE |
8264 | { |
8265 | ++p; | |
8266 | continue; | |
8267 | } | |
8268 | ||
8269 | this_arg = p; | |
8270 | while (*p != ' ' && *p != ';') | |
8271 | { | |
8272 | if (*p == '\0') | |
3b5edfee | 8273 | goto invalid_select; |
60103a34 DE |
8274 | ++p; |
8275 | } | |
8276 | ||
03c42484 RK |
8277 | if (*this_arg != '!') |
8278 | not_arg = 0; | |
60103a34 | 8279 | else |
03c42484 RK |
8280 | { |
8281 | not_arg = 1; | |
8282 | ++this_arg; | |
8283 | } | |
8284 | ||
8285 | /* If this is a default argument, we can just ignore it. | |
8286 | This is true even if this_arg begins with '!'. Beginning | |
8287 | with '!' does not mean that this argument is necessarily | |
8288 | inappropriate for this library: it merely means that | |
8289 | there is a more specific library which uses this | |
8290 | argument. If this argument is a default, we need not | |
8291 | consider that more specific library. */ | |
5bbcd587 JJ |
8292 | ok = used_arg (this_arg, p - this_arg); |
8293 | if (not_arg) | |
8294 | ok = ! ok; | |
8295 | ||
8296 | if (! ok) | |
8297 | ndfltok = 0; | |
8298 | ||
8299 | if (default_arg (this_arg, p - this_arg)) | |
8300 | ok = 1; | |
60103a34 DE |
8301 | |
8302 | if (*p == ' ') | |
8303 | ++p; | |
8304 | } | |
8305 | ||
5bbcd587 | 8306 | if (ok && first) |
60103a34 DE |
8307 | { |
8308 | if (this_path_len != 1 | |
8309 | || this_path[0] != '.') | |
8310 | { | |
5ed6ace5 | 8311 | char *new_multilib_dir = XNEWVEC (char, this_path_len + 1); |
5bbcd587 JJ |
8312 | char *q; |
8313 | ||
878f32c3 KG |
8314 | strncpy (new_multilib_dir, this_path, this_path_len); |
8315 | new_multilib_dir[this_path_len] = '\0'; | |
5bbcd587 JJ |
8316 | q = strchr (new_multilib_dir, ':'); |
8317 | if (q != NULL) | |
8318 | *q = '\0'; | |
878f32c3 | 8319 | multilib_dir = new_multilib_dir; |
60103a34 | 8320 | } |
5bbcd587 JJ |
8321 | first = 0; |
8322 | } | |
8323 | ||
8324 | if (ndfltok) | |
8325 | { | |
8326 | const char *q = this_path, *end = this_path + this_path_len; | |
8327 | ||
8328 | while (q < end && *q != ':') | |
8329 | q++; | |
c49d2df6 | 8330 | if (q < end) |
5bbcd587 | 8331 | { |
e0cdc09f MK |
8332 | const char *q2 = q + 1, *ml_end = end; |
8333 | char *new_multilib_os_dir; | |
8334 | ||
8335 | while (q2 < end && *q2 != ':') | |
8336 | q2++; | |
8337 | if (*q2 == ':') | |
8338 | ml_end = q2; | |
646d1bed PG |
8339 | if (ml_end - q == 1) |
8340 | multilib_os_dir = xstrdup ("."); | |
8341 | else | |
8342 | { | |
8343 | new_multilib_os_dir = XNEWVEC (char, ml_end - q); | |
8344 | memcpy (new_multilib_os_dir, q + 1, ml_end - q - 1); | |
8345 | new_multilib_os_dir[ml_end - q - 1] = '\0'; | |
8346 | multilib_os_dir = new_multilib_os_dir; | |
8347 | } | |
e0cdc09f MK |
8348 | |
8349 | if (q2 < end && *q2 == ':') | |
8350 | { | |
8351 | char *new_multiarch_dir = XNEWVEC (char, end - q2); | |
8352 | memcpy (new_multiarch_dir, q2 + 1, end - q2 - 1); | |
8353 | new_multiarch_dir[end - q2 - 1] = '\0'; | |
8354 | multiarch_dir = new_multiarch_dir; | |
8355 | } | |
5bbcd587 JJ |
8356 | break; |
8357 | } | |
60103a34 DE |
8358 | } |
8359 | ||
8360 | ++p; | |
9218435e | 8361 | } |
5bbcd587 JJ |
8362 | |
8363 | if (multilib_dir == NULL && multilib_os_dir != NULL | |
3c40bd65 | 8364 | && strcmp (multilib_os_dir, ".") == 0) |
5bbcd587 | 8365 | { |
b1d5455a | 8366 | free (CONST_CAST (char *, multilib_os_dir)); |
5bbcd587 JJ |
8367 | multilib_os_dir = NULL; |
8368 | } | |
8369 | else if (multilib_dir != NULL && multilib_os_dir == NULL) | |
8370 | multilib_os_dir = multilib_dir; | |
60103a34 DE |
8371 | } |
8372 | ||
8373 | /* Print out the multiple library subdirectory selection | |
8374 | information. This prints out a series of lines. Each line looks | |
8375 | like SUBDIRECTORY;@OPTION@OPTION, with as many options as is | |
8376 | required. Only the desired options are printed out, the negative | |
8377 | matches. The options are print without a leading dash. There are | |
8378 | no spaces to make it easy to use the information in the shell. | |
8379 | Each subdirectory is printed only once. This assumes the ordering | |
0a8d6618 BC |
8380 | generated by the genmultilib script. Also, we leave out ones that match |
8381 | the exclusions. */ | |
60103a34 DE |
8382 | |
8383 | static void | |
1d088dee | 8384 | print_multilib_info (void) |
60103a34 | 8385 | { |
3b304f5b ZW |
8386 | const char *p = multilib_select; |
8387 | const char *last_path = 0, *this_path; | |
03c42484 | 8388 | int skip; |
3ac63d94 | 8389 | unsigned int last_path_len = 0; |
60103a34 DE |
8390 | |
8391 | while (*p != '\0') | |
8392 | { | |
0a8d6618 | 8393 | skip = 0; |
60103a34 DE |
8394 | /* Ignore newlines. */ |
8395 | if (*p == '\n') | |
8396 | { | |
8397 | ++p; | |
8398 | continue; | |
8399 | } | |
8400 | ||
8401 | /* Get the initial path. */ | |
8402 | this_path = p; | |
8403 | while (*p != ' ') | |
8404 | { | |
8405 | if (*p == '\0') | |
3b5edfee NS |
8406 | { |
8407 | invalid_select: | |
bdc6b402 | 8408 | fatal_error ("multilib select %qs is invalid", multilib_select); |
3b5edfee | 8409 | } |
7904f95f | 8410 | |
60103a34 DE |
8411 | ++p; |
8412 | } | |
8413 | ||
c49d2df6 | 8414 | /* When --disable-multilib was used but target defines |
e0cdc09f MK |
8415 | MULTILIB_OSDIRNAMES, entries starting with .: (and not starting |
8416 | with .:: for multiarch configurations) are there just to find | |
8417 | multilib_os_dir, so skip them from output. */ | |
8418 | if (this_path[0] == '.' && this_path[1] == ':' && this_path[2] != ':') | |
c49d2df6 JJ |
8419 | skip = 1; |
8420 | ||
0a8d6618 BC |
8421 | /* Check for matches with the multilib_exclusions. We don't bother |
8422 | with the '!' in either list. If any of the exclusion rules match | |
8423 | all of its options with the select rule, we skip it. */ | |
d25a45d4 KH |
8424 | { |
8425 | const char *e = multilib_exclusions; | |
8426 | const char *this_arg; | |
0a8d6618 | 8427 | |
d25a45d4 KH |
8428 | while (*e != '\0') |
8429 | { | |
8430 | int m = 1; | |
8431 | /* Ignore newlines. */ | |
8432 | if (*e == '\n') | |
8433 | { | |
8434 | ++e; | |
8435 | continue; | |
8436 | } | |
0a8d6618 | 8437 | |
d25a45d4 KH |
8438 | /* Check the arguments. */ |
8439 | while (*e != ';') | |
8440 | { | |
8441 | const char *q; | |
8442 | int mp = 0; | |
0a8d6618 | 8443 | |
d25a45d4 | 8444 | if (*e == '\0') |
3b5edfee NS |
8445 | { |
8446 | invalid_exclusion: | |
bdc6b402 | 8447 | fatal_error ("multilib exclusion %qs is invalid", |
2dec80c7 | 8448 | multilib_exclusions); |
3b5edfee | 8449 | } |
9218435e | 8450 | |
d25a45d4 KH |
8451 | if (! m) |
8452 | { | |
8453 | ++e; | |
8454 | continue; | |
8455 | } | |
0a8d6618 | 8456 | |
d25a45d4 | 8457 | this_arg = e; |
9218435e | 8458 | |
d25a45d4 KH |
8459 | while (*e != ' ' && *e != ';') |
8460 | { | |
8461 | if (*e == '\0') | |
3b5edfee | 8462 | goto invalid_exclusion; |
d25a45d4 KH |
8463 | ++e; |
8464 | } | |
0a8d6618 | 8465 | |
d25a45d4 KH |
8466 | q = p + 1; |
8467 | while (*q != ';') | |
8468 | { | |
8469 | const char *arg; | |
8470 | int len = e - this_arg; | |
0a8d6618 | 8471 | |
d25a45d4 | 8472 | if (*q == '\0') |
3b5edfee | 8473 | goto invalid_select; |
0a8d6618 | 8474 | |
d25a45d4 KH |
8475 | arg = q; |
8476 | ||
8477 | while (*q != ' ' && *q != ';') | |
8478 | { | |
8479 | if (*q == '\0') | |
3b5edfee | 8480 | goto invalid_select; |
0a8d6618 | 8481 | ++q; |
d25a45d4 | 8482 | } |
0a8d6618 | 8483 | |
3b5edfee NS |
8484 | if (! strncmp (arg, this_arg, |
8485 | (len < q - arg) ? q - arg : len) | |
8486 | || default_arg (this_arg, e - this_arg)) | |
d25a45d4 KH |
8487 | { |
8488 | mp = 1; | |
8489 | break; | |
8490 | } | |
0a8d6618 | 8491 | |
d25a45d4 KH |
8492 | if (*q == ' ') |
8493 | ++q; | |
8494 | } | |
9218435e | 8495 | |
d25a45d4 KH |
8496 | if (! mp) |
8497 | m = 0; | |
0a8d6618 | 8498 | |
d25a45d4 KH |
8499 | if (*e == ' ') |
8500 | ++e; | |
8501 | } | |
8502 | ||
8503 | if (m) | |
8504 | { | |
8505 | skip = 1; | |
8506 | break; | |
8507 | } | |
8508 | ||
8509 | if (*e != '\0') | |
8510 | ++e; | |
8511 | } | |
8512 | } | |
0a8d6618 BC |
8513 | |
8514 | if (! skip) | |
d25a45d4 KH |
8515 | { |
8516 | /* If this is a duplicate, skip it. */ | |
3b5edfee NS |
8517 | skip = (last_path != 0 |
8518 | && (unsigned int) (p - this_path) == last_path_len | |
ba78087b | 8519 | && ! filename_ncmp (last_path, this_path, last_path_len)); |
60103a34 | 8520 | |
d25a45d4 KH |
8521 | last_path = this_path; |
8522 | last_path_len = p - this_path; | |
0a8d6618 | 8523 | } |
60103a34 | 8524 | |
03c42484 RK |
8525 | /* If this directory requires any default arguments, we can skip |
8526 | it. We will already have printed a directory identical to | |
8527 | this one which does not require that default argument. */ | |
8528 | if (! skip) | |
8529 | { | |
3b304f5b | 8530 | const char *q; |
03c42484 RK |
8531 | |
8532 | q = p + 1; | |
8533 | while (*q != ';') | |
8534 | { | |
3b304f5b | 8535 | const char *arg; |
03c42484 RK |
8536 | |
8537 | if (*q == '\0') | |
3b5edfee | 8538 | goto invalid_select; |
03c42484 RK |
8539 | |
8540 | if (*q == '!') | |
8541 | arg = NULL; | |
8542 | else | |
8543 | arg = q; | |
8544 | ||
8545 | while (*q != ' ' && *q != ';') | |
8546 | { | |
8547 | if (*q == '\0') | |
3b5edfee | 8548 | goto invalid_select; |
03c42484 RK |
8549 | ++q; |
8550 | } | |
8551 | ||
8552 | if (arg != NULL | |
8553 | && default_arg (arg, q - arg)) | |
8554 | { | |
8555 | skip = 1; | |
8556 | break; | |
8557 | } | |
8558 | ||
8559 | if (*q == ' ') | |
8560 | ++q; | |
8561 | } | |
8562 | } | |
8563 | ||
60103a34 DE |
8564 | if (! skip) |
8565 | { | |
3b304f5b | 8566 | const char *p1; |
60103a34 | 8567 | |
5bbcd587 | 8568 | for (p1 = last_path; p1 < p && *p1 != ':'; p1++) |
60103a34 DE |
8569 | putchar (*p1); |
8570 | putchar (';'); | |
8571 | } | |
8572 | ||
8573 | ++p; | |
8574 | while (*p != ';') | |
8575 | { | |
8576 | int use_arg; | |
8577 | ||
8578 | if (*p == '\0') | |
3b5edfee | 8579 | goto invalid_select; |
60103a34 DE |
8580 | |
8581 | if (skip) | |
8582 | { | |
8583 | ++p; | |
8584 | continue; | |
8585 | } | |
8586 | ||
8587 | use_arg = *p != '!'; | |
8588 | ||
8589 | if (use_arg) | |
8590 | putchar ('@'); | |
8591 | ||
8592 | while (*p != ' ' && *p != ';') | |
8593 | { | |
8594 | if (*p == '\0') | |
3b5edfee | 8595 | goto invalid_select; |
60103a34 DE |
8596 | if (use_arg) |
8597 | putchar (*p); | |
8598 | ++p; | |
8599 | } | |
8600 | ||
8601 | if (*p == ' ') | |
8602 | ++p; | |
8603 | } | |
8604 | ||
8605 | if (! skip) | |
961b7009 | 8606 | { |
3ac63d94 | 8607 | /* If there are extra options, print them now. */ |
961b7009 MM |
8608 | if (multilib_extra && *multilib_extra) |
8609 | { | |
8610 | int print_at = TRUE; | |
3b304f5b | 8611 | const char *q; |
961b7009 MM |
8612 | |
8613 | for (q = multilib_extra; *q != '\0'; q++) | |
8614 | { | |
8615 | if (*q == ' ') | |
8616 | print_at = TRUE; | |
8617 | else | |
8618 | { | |
8619 | if (print_at) | |
8620 | putchar ('@'); | |
8621 | putchar (*q); | |
8622 | print_at = FALSE; | |
8623 | } | |
8624 | } | |
8625 | } | |
9218435e | 8626 | |
961b7009 MM |
8627 | putchar ('\n'); |
8628 | } | |
60103a34 DE |
8629 | |
8630 | ++p; | |
8631 | } | |
8632 | } | |
f3226a90 | 8633 | \f |
30d8946b MM |
8634 | /* getenv built-in spec function. |
8635 | ||
8636 | Returns the value of the environment variable given by its first | |
8637 | argument, concatenated with the second argument. If the | |
8638 | environment variable is not defined, a fatal error is issued. */ | |
8639 | ||
8640 | static const char * | |
8641 | getenv_spec_function (int argc, const char **argv) | |
8642 | { | |
8643 | char *value; | |
5557813a NS |
8644 | char *result; |
8645 | char *ptr; | |
8646 | size_t len; | |
30d8946b MM |
8647 | |
8648 | if (argc != 2) | |
8649 | return NULL; | |
8650 | ||
8651 | value = getenv (argv[0]); | |
8652 | if (!value) | |
bdc6b402 | 8653 | fatal_error ("environment variable %qs not defined", argv[0]); |
30d8946b | 8654 | |
5557813a | 8655 | /* We have to escape every character of the environment variable so |
fa10beec RW |
8656 | they are not interpreted as active spec characters. A |
8657 | particularly painful case is when we are reading a variable | |
5557813a NS |
8658 | holding a windows path complete with \ separators. */ |
8659 | len = strlen (value) * 2 + strlen (argv[1]) + 1; | |
e1e4cdc4 | 8660 | result = XNEWVAR (char, len); |
5557813a NS |
8661 | for (ptr = result; *value; ptr += 2) |
8662 | { | |
8663 | ptr[0] = '\\'; | |
8664 | ptr[1] = *value++; | |
8665 | } | |
b8698a0f | 8666 | |
5557813a | 8667 | strcpy (ptr, argv[1]); |
b8698a0f | 8668 | |
5557813a | 8669 | return result; |
30d8946b MM |
8670 | } |
8671 | ||
f3226a90 JT |
8672 | /* if-exists built-in spec function. |
8673 | ||
8674 | Checks to see if the file specified by the absolute pathname in | |
8675 | ARGS exists. Returns that pathname if found. | |
8676 | ||
8677 | The usual use for this function is to check for a library file | |
8678 | (whose name has been expanded with %s). */ | |
8679 | ||
8680 | static const char * | |
1d088dee | 8681 | if_exists_spec_function (int argc, const char **argv) |
f3226a90 JT |
8682 | { |
8683 | /* Must have only one argument. */ | |
3dce1408 | 8684 | if (argc == 1 && IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK)) |
f3226a90 JT |
8685 | return argv[0]; |
8686 | ||
8687 | return NULL; | |
8688 | } | |
152a5a9c JT |
8689 | |
8690 | /* if-exists-else built-in spec function. | |
8691 | ||
8692 | This is like if-exists, but takes an additional argument which | |
8693 | is returned if the first argument does not exist. */ | |
8694 | ||
8695 | static const char * | |
1d088dee | 8696 | if_exists_else_spec_function (int argc, const char **argv) |
152a5a9c JT |
8697 | { |
8698 | /* Must have exactly two arguments. */ | |
8699 | if (argc != 2) | |
8700 | return NULL; | |
8701 | ||
3dce1408 | 8702 | if (IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK)) |
152a5a9c JT |
8703 | return argv[0]; |
8704 | ||
8705 | return argv[1]; | |
8706 | } | |
3dd53121 | 8707 | |
de5a5fa1 MP |
8708 | /* sanitize built-in spec function. |
8709 | ||
8710 | This returns non-NULL, if sanitizing address, thread or | |
8711 | any of the undefined behavior sanitizers. */ | |
8712 | ||
8713 | static const char * | |
8714 | sanitize_spec_function (int argc, const char **argv) | |
8715 | { | |
8716 | if (argc != 1) | |
8717 | return NULL; | |
8718 | ||
8719 | if (strcmp (argv[0], "address") == 0) | |
fec4842d YG |
8720 | return (flag_sanitize & SANITIZE_USER_ADDRESS) ? "" : NULL; |
8721 | if (strcmp (argv[0], "kernel-address") == 0) | |
8722 | return (flag_sanitize & SANITIZE_KERNEL_ADDRESS) ? "" : NULL; | |
de5a5fa1 MP |
8723 | if (strcmp (argv[0], "thread") == 0) |
8724 | return (flag_sanitize & SANITIZE_THREAD) ? "" : NULL; | |
8725 | if (strcmp (argv[0], "undefined") == 0) | |
85a16bf8 | 8726 | return ((flag_sanitize & (SANITIZE_UNDEFINED | SANITIZE_NONDEFAULT)) |
1c33c9b7 | 8727 | && !flag_sanitize_undefined_trap_on_error) ? "" : NULL; |
9065ada9 JJ |
8728 | if (strcmp (argv[0], "leak") == 0) |
8729 | return ((flag_sanitize | |
8730 | & (SANITIZE_ADDRESS | SANITIZE_LEAK | SANITIZE_THREAD)) | |
8731 | == SANITIZE_LEAK) ? "" : NULL; | |
de5a5fa1 MP |
8732 | return NULL; |
8733 | } | |
8734 | ||
3dd53121 | 8735 | /* replace-outfile built-in spec function. |
ed5b9f96 GK |
8736 | |
8737 | This looks for the first argument in the outfiles array's name and | |
8738 | replaces it with the second argument. */ | |
3dd53121 AP |
8739 | |
8740 | static const char * | |
8741 | replace_outfile_spec_function (int argc, const char **argv) | |
8742 | { | |
8743 | int i; | |
8744 | /* Must have exactly two arguments. */ | |
8745 | if (argc != 2) | |
8746 | abort (); | |
7904f95f | 8747 | |
3dd53121 AP |
8748 | for (i = 0; i < n_infiles; i++) |
8749 | { | |
ba78087b | 8750 | if (outfiles[i] && !filename_cmp (outfiles[i], argv[0])) |
3dd53121 AP |
8751 | outfiles[i] = xstrdup (argv[1]); |
8752 | } | |
8753 | return NULL; | |
8754 | } | |
8755 | ||
2642f659 JH |
8756 | /* remove-outfile built-in spec function. |
8757 | * | |
8758 | * This looks for the first argument in the outfiles array's name and | |
8759 | * removes it. */ | |
8760 | ||
8761 | static const char * | |
8762 | remove_outfile_spec_function (int argc, const char **argv) | |
8763 | { | |
8764 | int i; | |
8765 | /* Must have exactly one argument. */ | |
8766 | if (argc != 1) | |
8767 | abort (); | |
8768 | ||
8769 | for (i = 0; i < n_infiles; i++) | |
8770 | { | |
ba78087b | 8771 | if (outfiles[i] && !filename_cmp (outfiles[i], argv[0])) |
2642f659 JH |
8772 | outfiles[i] = NULL; |
8773 | } | |
8774 | return NULL; | |
8775 | } | |
8776 | ||
7904f95f | 8777 | /* Given two version numbers, compares the two numbers. |
ed5b9f96 GK |
8778 | A version number must match the regular expression |
8779 | ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))* | |
8780 | */ | |
8781 | static int | |
8782 | compare_version_strings (const char *v1, const char *v2) | |
8783 | { | |
8784 | int rresult; | |
8785 | regex_t r; | |
7904f95f | 8786 | |
ed5b9f96 GK |
8787 | if (regcomp (&r, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$", |
8788 | REG_EXTENDED | REG_NOSUB) != 0) | |
8789 | abort (); | |
8790 | rresult = regexec (&r, v1, 0, NULL, 0); | |
8791 | if (rresult == REG_NOMATCH) | |
bdc6b402 | 8792 | fatal_error ("invalid version number %qs", v1); |
ed5b9f96 GK |
8793 | else if (rresult != 0) |
8794 | abort (); | |
8795 | rresult = regexec (&r, v2, 0, NULL, 0); | |
8796 | if (rresult == REG_NOMATCH) | |
bdc6b402 | 8797 | fatal_error ("invalid version number %qs", v2); |
ed5b9f96 GK |
8798 | else if (rresult != 0) |
8799 | abort (); | |
8800 | ||
8801 | return strverscmp (v1, v2); | |
8802 | } | |
8803 | ||
8804 | ||
8805 | /* version_compare built-in spec function. | |
8806 | ||
8807 | This takes an argument of the following form: | |
8808 | ||
8809 | <comparison-op> <arg1> [<arg2>] <switch> <result> | |
8810 | ||
8811 | and produces "result" if the comparison evaluates to true, | |
8812 | and nothing if it doesn't. | |
8813 | ||
8814 | The supported <comparison-op> values are: | |
7904f95f | 8815 | |
ed5b9f96 GK |
8816 | >= true if switch is a later (or same) version than arg1 |
8817 | !> opposite of >= | |
8818 | < true if switch is an earlier version than arg1 | |
8819 | !< opposite of < | |
8820 | >< true if switch is arg1 or later, and earlier than arg2 | |
8821 | <> true if switch is earlier than arg1 or is arg2 or later | |
8822 | ||
8823 | If the switch is not present, the condition is false unless | |
8824 | the first character of the <comparison-op> is '!'. | |
8825 | ||
8826 | For example, | |
8827 | %:version-compare(>= 10.3 mmacosx-version-min= -lmx) | |
8828 | adds -lmx if -mmacosx-version-min=10.3.9 was passed. */ | |
8829 | ||
8830 | static const char * | |
8831 | version_compare_spec_function (int argc, const char **argv) | |
8832 | { | |
8833 | int comp1, comp2; | |
8834 | size_t switch_len; | |
8835 | const char *switch_value = NULL; | |
8836 | int nargs = 1, i; | |
8837 | bool result; | |
8838 | ||
8839 | if (argc < 3) | |
2dec80c7 | 8840 | fatal_error ("too few arguments to %%:version-compare"); |
ed5b9f96 GK |
8841 | if (argv[0][0] == '\0') |
8842 | abort (); | |
8843 | if ((argv[0][1] == '<' || argv[0][1] == '>') && argv[0][0] != '!') | |
8844 | nargs = 2; | |
8845 | if (argc != nargs + 3) | |
2dec80c7 | 8846 | fatal_error ("too many arguments to %%:version-compare"); |
ed5b9f96 GK |
8847 | |
8848 | switch_len = strlen (argv[nargs + 1]); | |
8849 | for (i = 0; i < n_switches; i++) | |
8850 | if (!strncmp (switches[i].part1, argv[nargs + 1], switch_len) | |
8851 | && check_live_switch (i, switch_len)) | |
8852 | switch_value = switches[i].part1 + switch_len; | |
8853 | ||
8854 | if (switch_value == NULL) | |
8855 | comp1 = comp2 = -1; | |
8856 | else | |
8857 | { | |
8858 | comp1 = compare_version_strings (switch_value, argv[1]); | |
8859 | if (nargs == 2) | |
8860 | comp2 = compare_version_strings (switch_value, argv[2]); | |
8861 | else | |
8862 | comp2 = -1; /* This value unused. */ | |
8863 | } | |
8864 | ||
8865 | switch (argv[0][0] << 8 | argv[0][1]) | |
8866 | { | |
8867 | case '>' << 8 | '=': | |
8868 | result = comp1 >= 0; | |
8869 | break; | |
8870 | case '!' << 8 | '<': | |
8871 | result = comp1 >= 0 || switch_value == NULL; | |
8872 | break; | |
8873 | case '<' << 8: | |
8874 | result = comp1 < 0; | |
8875 | break; | |
8876 | case '!' << 8 | '>': | |
8877 | result = comp1 < 0 || switch_value == NULL; | |
8878 | break; | |
8879 | case '>' << 8 | '<': | |
8880 | result = comp1 >= 0 && comp2 < 0; | |
8881 | break; | |
8882 | case '<' << 8 | '>': | |
8883 | result = comp1 < 0 || comp2 >= 0; | |
8884 | break; | |
7904f95f | 8885 | |
ed5b9f96 | 8886 | default: |
bdc6b402 | 8887 | fatal_error ("unknown operator %qs in %%:version-compare", argv[0]); |
ed5b9f96 GK |
8888 | } |
8889 | if (! result) | |
8890 | return NULL; | |
8891 | ||
8892 | return argv[nargs + 2]; | |
8893 | } | |
953ff289 DN |
8894 | |
8895 | /* %:include builtin spec function. This differs from %include in that it | |
8896 | can be nested inside a spec, and thus be conditionalized. It takes | |
8897 | one argument, the filename, and looks for it in the startfile path. | |
8898 | The result is always NULL, i.e. an empty expansion. */ | |
8899 | ||
8900 | static const char * | |
8901 | include_spec_function (int argc, const char **argv) | |
8902 | { | |
8903 | char *file; | |
8904 | ||
8905 | if (argc != 1) | |
8906 | abort (); | |
8907 | ||
4d2b059d | 8908 | file = find_a_file (&startfile_prefixes, argv[0], R_OK, true); |
d168aaee | 8909 | read_specs (file ? file : argv[0], false, false); |
953ff289 DN |
8910 | |
8911 | return NULL; | |
8912 | } | |
a0f87454 | 8913 | |
c1ce46a5 | 8914 | /* %:find-file spec function. This function replaces its argument by |
073a8998 | 8915 | the file found through find_file, that is the -print-file-name gcc |
4adbd5dd MK |
8916 | program option. */ |
8917 | static const char * | |
c1ce46a5 | 8918 | find_file_spec_function (int argc, const char **argv) |
4adbd5dd MK |
8919 | { |
8920 | const char *file; | |
8921 | ||
8922 | if (argc != 1) | |
8923 | abort (); | |
8924 | ||
8925 | file = find_file (argv[0]); | |
8926 | return file; | |
8927 | } | |
8928 | ||
8929 | ||
c1ce46a5 | 8930 | /* %:find-plugindir spec function. This function replaces its argument |
073a8998 | 8931 | by the -iplugindir=<dir> option. `dir' is found through find_file, that |
c1ce46a5 MK |
8932 | is the -print-file-name gcc program option. */ |
8933 | static const char * | |
8934 | find_plugindir_spec_function (int argc, const char **argv ATTRIBUTE_UNUSED) | |
8935 | { | |
8936 | const char *option; | |
8937 | ||
8938 | if (argc != 0) | |
8939 | abort (); | |
8940 | ||
8941 | option = concat ("-iplugindir=", find_file ("plugin"), NULL); | |
8942 | return option; | |
8943 | } | |
8944 | ||
8945 | ||
a0f87454 RS |
8946 | /* %:print-asm-header spec function. Print a banner to say that the |
8947 | following output is from the assembler. */ | |
8948 | ||
8949 | static const char * | |
8950 | print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED, | |
8951 | const char **argv ATTRIBUTE_UNUSED) | |
8952 | { | |
4dad0aca | 8953 | printf (_("Assembler options\n=================\n\n")); |
a0f87454 RS |
8954 | printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n")); |
8955 | fflush (stdout); | |
8956 | return NULL; | |
8957 | } | |
2153915d | 8958 | |
44a22bdb | 8959 | /* Get a random number for -frandom-seed */ |
b5b8b0ac | 8960 | |
44a22bdb AK |
8961 | static unsigned HOST_WIDE_INT |
8962 | get_random_number (void) | |
b5b8b0ac | 8963 | { |
44a22bdb AK |
8964 | unsigned HOST_WIDE_INT ret = 0; |
8965 | int fd; | |
8966 | ||
8967 | fd = open ("/dev/urandom", O_RDONLY); | |
8968 | if (fd >= 0) | |
8969 | { | |
8970 | read (fd, &ret, sizeof (HOST_WIDE_INT)); | |
8971 | close (fd); | |
8972 | if (ret) | |
8973 | return ret; | |
8974 | } | |
b5b8b0ac AO |
8975 | |
8976 | /* Get some more or less random data. */ | |
8977 | #ifdef HAVE_GETTIMEOFDAY | |
8978 | { | |
8979 | struct timeval tv; | |
8980 | ||
8981 | gettimeofday (&tv, NULL); | |
8982 | ret = tv.tv_sec * 1000 + tv.tv_usec / 1000; | |
8983 | } | |
8984 | #else | |
8985 | { | |
8986 | time_t now = time (NULL); | |
8987 | ||
8988 | if (now != (time_t)-1) | |
8989 | ret = (unsigned) now; | |
8990 | } | |
8991 | #endif | |
8992 | ||
c3284718 | 8993 | return ret ^ getpid (); |
b5b8b0ac AO |
8994 | } |
8995 | ||
2153915d AO |
8996 | /* %:compare-debug-dump-opt spec function. Save the last argument, |
8997 | expected to be the last -fdump-final-insns option, or generate a | |
8998 | temporary. */ | |
8999 | ||
9000 | static const char * | |
9001 | compare_debug_dump_opt_spec_function (int arg, | |
9002 | const char **argv ATTRIBUTE_UNUSED) | |
9003 | { | |
fc429b48 | 9004 | char *ret; |
2153915d AO |
9005 | char *name; |
9006 | int which; | |
b5b8b0ac | 9007 | static char random_seed[HOST_BITS_PER_WIDE_INT / 4 + 3]; |
2153915d AO |
9008 | |
9009 | if (arg != 0) | |
2dec80c7 | 9010 | fatal_error ("too many arguments to %%:compare-debug-dump-opt"); |
2153915d | 9011 | |
2153915d AO |
9012 | do_spec_2 ("%{fdump-final-insns=*:%*}"); |
9013 | do_spec_1 (" ", 0, NULL); | |
9014 | ||
9771b263 DN |
9015 | if (argbuf.length () > 0 |
9016 | && strcmp (argv[argbuf.length () - 1], ".")) | |
2153915d | 9017 | { |
b5b8b0ac AO |
9018 | if (!compare_debug) |
9019 | return NULL; | |
9020 | ||
9771b263 | 9021 | name = xstrdup (argv[argbuf.length () - 1]); |
2153915d AO |
9022 | ret = NULL; |
9023 | } | |
9024 | else | |
9025 | { | |
b5b8b0ac AO |
9026 | const char *ext = NULL; |
9027 | ||
9771b263 | 9028 | if (argbuf.length () > 0) |
b5b8b0ac AO |
9029 | { |
9030 | do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}"); | |
9031 | ext = ".gkd"; | |
9032 | } | |
9033 | else if (!compare_debug) | |
9034 | return NULL; | |
9035 | else | |
9036 | do_spec_2 ("%g.gkd"); | |
2153915d | 9037 | |
2153915d | 9038 | do_spec_1 (" ", 0, NULL); |
2153915d | 9039 | |
9771b263 | 9040 | gcc_assert (argbuf.length () > 0); |
2153915d | 9041 | |
9771b263 | 9042 | name = concat (argbuf.last (), ext, NULL); |
b5b8b0ac AO |
9043 | |
9044 | ret = concat ("-fdump-final-insns=", name, NULL); | |
2153915d AO |
9045 | } |
9046 | ||
9047 | which = compare_debug < 0; | |
9048 | debug_check_temp_file[which] = name; | |
9049 | ||
b5b8b0ac AO |
9050 | if (!which) |
9051 | { | |
44a22bdb | 9052 | unsigned HOST_WIDE_INT value = get_random_number (); |
b5b8b0ac AO |
9053 | |
9054 | sprintf (random_seed, HOST_WIDE_INT_PRINT_HEX, value); | |
9055 | } | |
9056 | ||
9057 | if (*random_seed) | |
fc429b48 TB |
9058 | { |
9059 | char *tmp = ret; | |
9060 | ret = concat ("%{!frandom-seed=*:-frandom-seed=", random_seed, "} ", | |
9061 | ret, NULL); | |
9062 | free (tmp); | |
9063 | } | |
b5b8b0ac AO |
9064 | |
9065 | if (which) | |
9066 | *random_seed = 0; | |
2153915d AO |
9067 | |
9068 | return ret; | |
9069 | } | |
9070 | ||
9071 | static const char *debug_auxbase_opt; | |
9072 | ||
9073 | /* %:compare-debug-self-opt spec function. Expands to the options | |
9074 | that are to be passed in the second compilation of | |
9075 | compare-debug. */ | |
9076 | ||
9077 | static const char * | |
9078 | compare_debug_self_opt_spec_function (int arg, | |
9079 | const char **argv ATTRIBUTE_UNUSED) | |
9080 | { | |
9081 | if (arg != 0) | |
2dec80c7 | 9082 | fatal_error ("too many arguments to %%:compare-debug-self-opt"); |
2153915d AO |
9083 | |
9084 | if (compare_debug >= 0) | |
9085 | return NULL; | |
9086 | ||
9087 | do_spec_2 ("%{c|S:%{o*:%*}}"); | |
9088 | do_spec_1 (" ", 0, NULL); | |
9089 | ||
9771b263 | 9090 | if (argbuf.length () > 0) |
2153915d | 9091 | debug_auxbase_opt = concat ("-auxbase-strip ", |
9771b263 | 9092 | argbuf.last (), |
2153915d AO |
9093 | NULL); |
9094 | else | |
9095 | debug_auxbase_opt = NULL; | |
9096 | ||
9097 | return concat ("\ | |
9098 | %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \ | |
9099 | %<fdump-final-insns=* -w -S -o %j \ | |
9100 | %{!fcompare-debug-second:-fcompare-debug-second} \ | |
9101 | ", compare_debug_opt, NULL); | |
9102 | } | |
9103 | ||
9104 | /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase | |
9105 | options that are to be passed in the second compilation of | |
9106 | compare-debug. It expects, as an argument, the basename of the | |
9107 | current input file name, with the .gk suffix appended to it. */ | |
9108 | ||
9109 | static const char * | |
9110 | compare_debug_auxbase_opt_spec_function (int arg, | |
9111 | const char **argv) | |
9112 | { | |
9113 | char *name; | |
9114 | int len; | |
9115 | ||
9116 | if (arg == 0) | |
2dec80c7 | 9117 | fatal_error ("too few arguments to %%:compare-debug-auxbase-opt"); |
2153915d AO |
9118 | |
9119 | if (arg != 1) | |
2dec80c7 | 9120 | fatal_error ("too many arguments to %%:compare-debug-auxbase-opt"); |
2153915d AO |
9121 | |
9122 | if (compare_debug >= 0) | |
9123 | return NULL; | |
9124 | ||
9125 | len = strlen (argv[0]); | |
9126 | if (len < 3 || strcmp (argv[0] + len - 3, ".gk") != 0) | |
2dec80c7 JM |
9127 | fatal_error ("argument to %%:compare-debug-auxbase-opt " |
9128 | "does not end in .gk"); | |
2153915d AO |
9129 | |
9130 | if (debug_auxbase_opt) | |
9131 | return debug_auxbase_opt; | |
9132 | ||
9133 | #define OPT "-auxbase " | |
9134 | ||
9135 | len -= 3; | |
9136 | name = (char*) xmalloc (sizeof (OPT) + len); | |
9137 | memcpy (name, OPT, sizeof (OPT) - 1); | |
9138 | memcpy (name + sizeof (OPT) - 1, argv[0], len); | |
9139 | name[sizeof (OPT) - 1 + len] = '\0'; | |
9140 | ||
b5b8b0ac AO |
9141 | #undef OPT |
9142 | ||
2153915d AO |
9143 | return name; |
9144 | } | |
9a37bc07 DK |
9145 | |
9146 | /* %:pass-through-libs spec function. Finds all -l options and input | |
9147 | file names in the lib spec passed to it, and makes a list of them | |
9148 | prepended with the plugin option to cause them to be passed through | |
9149 | to the final link after all the new object files have been added. */ | |
9150 | ||
9151 | const char * | |
9152 | pass_through_libs_spec_func (int argc, const char **argv) | |
9153 | { | |
9154 | char *prepended = xstrdup (" "); | |
9155 | int n; | |
9156 | /* Shlemiel the painter's algorithm. Innately horrible, but at least | |
9157 | we know that there will never be more than a handful of strings to | |
9158 | concat, and it's only once per run, so it's not worth optimising. */ | |
9159 | for (n = 0; n < argc; n++) | |
9160 | { | |
9161 | char *old = prepended; | |
9162 | /* Anything that isn't an option is a full path to an output | |
9163 | file; pass it through if it ends in '.a'. Among options, | |
9164 | pass only -l. */ | |
9165 | if (argv[n][0] == '-' && argv[n][1] == 'l') | |
9166 | { | |
9167 | const char *lopt = argv[n] + 2; | |
9168 | /* Handle both joined and non-joined -l options. If for any | |
9169 | reason there's a trailing -l with no joined or following | |
9170 | arg just discard it. */ | |
9171 | if (!*lopt && ++n >= argc) | |
9172 | break; | |
9173 | else if (!*lopt) | |
9174 | lopt = argv[n]; | |
9175 | prepended = concat (prepended, "-plugin-opt=-pass-through=-l", | |
9176 | lopt, " ", NULL); | |
9177 | } | |
9178 | else if (!strcmp (".a", argv[n] + strlen (argv[n]) - 2)) | |
9179 | { | |
9180 | prepended = concat (prepended, "-plugin-opt=-pass-through=", | |
9181 | argv[n], " ", NULL); | |
9182 | } | |
9183 | if (prepended != old) | |
9184 | free (old); | |
9185 | } | |
9186 | return prepended; | |
9187 | } | |
99ea153e SA |
9188 | |
9189 | /* %:replace-extension spec function. Replaces the extension of the | |
9190 | first argument with the second argument. */ | |
9191 | ||
9192 | const char * | |
9193 | replace_extension_spec_func (int argc, const char **argv) | |
9194 | { | |
9195 | char *name; | |
9196 | char *p; | |
9197 | char *result; | |
9198 | int i; | |
9199 | ||
9200 | if (argc != 2) | |
9201 | fatal_error ("too few arguments to %%:replace-extension"); | |
9202 | ||
9203 | name = xstrdup (argv[0]); | |
9204 | ||
c3284718 | 9205 | for (i = strlen (name) - 1; i >= 0; i--) |
99ea153e SA |
9206 | if (IS_DIR_SEPARATOR (name[i])) |
9207 | break; | |
9208 | ||
9209 | p = strrchr (name + i + 1, '.'); | |
9210 | if (p != NULL) | |
9211 | *p = '\0'; | |
9212 | ||
9213 | result = concat (name, argv[1], NULL); | |
9214 | ||
9215 | free (name); | |
9216 | return result; | |
9217 | } | |
3c27ce4c JY |
9218 | |
9219 | /* Insert backslash before spaces in ORIG (usually a file path), to | |
9220 | avoid being broken by spec parser. | |
9221 | ||
9222 | This function is needed as do_spec_1 treats white space (' ' and '\t') | |
9223 | as the end of an argument. But in case of -plugin /usr/gcc install/xxx.so, | |
9224 | the file name should be treated as a single argument rather than being | |
9225 | broken into multiple. Solution is to insert '\\' before the space in a | |
9226 | file name. | |
9227 | ||
9228 | This function converts and only converts all occurrence of ' ' | |
9229 | to '\\' + ' ' and '\t' to '\\' + '\t'. For example: | |
9230 | "a b" -> "a\\ b" | |
9231 | "a b" -> "a\\ \\ b" | |
9232 | "a\tb" -> "a\\\tb" | |
9233 | "a\\ b" -> "a\\\\ b" | |
9234 | ||
9235 | orig: input null-terminating string that was allocated by xalloc. The | |
9236 | memory it points to might be freed in this function. Behavior undefined | |
9237 | if ORIG wasn't xalloced or was freed already at entry. | |
9238 | ||
9239 | Return: ORIG if no conversion needed. Otherwise a newly allocated string | |
9240 | that was converted from ORIG. */ | |
9241 | ||
9242 | static char * | |
9243 | convert_white_space (char *orig) | |
9244 | { | |
9245 | int len, number_of_space = 0; | |
9246 | ||
9247 | for (len = 0; orig[len]; len++) | |
9248 | if (orig[len] == ' ' || orig[len] == '\t') number_of_space++; | |
9249 | ||
9250 | if (number_of_space) | |
9251 | { | |
9252 | char *new_spec = (char *) xmalloc (len + number_of_space + 1); | |
9253 | int j, k; | |
9254 | for (j = 0, k = 0; j <= len; j++, k++) | |
9255 | { | |
9256 | if (orig[j] == ' ' || orig[j] == '\t') | |
9257 | new_spec[k++] = '\\'; | |
9258 | new_spec[k] = orig[j]; | |
9259 | } | |
9260 | free (orig); | |
9261 | return new_spec; | |
9262 | } | |
9263 | else | |
9264 | return orig; | |
9265 | } |