]>
Commit | Line | Data |
---|---|---|
ed1f651b | 1 | /* Compiler driver program that can handle many languages. |
9218435e | 2 | Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, |
d7fb0a6d | 3 | 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, |
9f8e43c0 | 4 | 2010, 2011 |
c662432e | 5 | Free Software Foundation, Inc. |
ed1f651b | 6 | |
1322177d | 7 | This file is part of GCC. |
ed1f651b | 8 | |
1322177d LB |
9 | GCC is free software; you can redistribute it and/or modify it under |
10 | the terms of the GNU General Public License as published by the Free | |
9dcd6f09 | 11 | Software Foundation; either version 3, or (at your option) any later |
1322177d | 12 | version. |
ed1f651b | 13 | |
1322177d LB |
14 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
15 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
16 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
17 | for more details. | |
ed1f651b RS |
18 | |
19 | You should have received a copy of the GNU General Public License | |
9dcd6f09 | 20 | along with GCC; see the file COPYING3. If not see |
8a554c70 | 21 | <http://www.gnu.org/licenses/>. */ |
ed1f651b RS |
22 | |
23 | /* This program is the user interface to the C compiler and possibly to | |
24 | other compilers. It is used because compilation is a complicated procedure | |
25 | which involves running several programs and passing temporary files between | |
26 | them, forwarding the users switches to those programs selectively, | |
27 | and deleting the temporary files at the end. | |
28 | ||
29 | CC recognizes how to compile each input file by suffixes in the file names. | |
30 | Once it knows which kind of compilation to perform, the procedure for | |
31 | compilation is specified by a string called a "spec". */ | |
c5c76735 | 32 | |
e9a25f70 | 33 | #include "config.h" |
670ee920 | 34 | #include "system.h" |
4977bab6 | 35 | #include "coretypes.h" |
1713a69f | 36 | #include "multilib.h" /* before tm.h */ |
4977bab6 | 37 | #include "tm.h" |
ed5b9f96 | 38 | #include "xregex.h" |
17248a6b | 39 | #include "obstack.h" |
ab87f8c8 | 40 | #include "intl.h" |
460ee112 | 41 | #include "prefix.h" |
9257393c | 42 | #include "gcc.h" |
6afbc885 | 43 | #include "diagnostic.h" |
8a63621f | 44 | #include "flags.h" |
14c7833c | 45 | #include "opts.h" |
5b634ee0 | 46 | #include "vec.h" |
ba78087b | 47 | #include "filenames.h" |
c10d53dd | 48 | |
45936a85 DD |
49 | /* By default there is no special suffix for target executables. */ |
50 | /* FIXME: when autoconf is fixed, remove the host check - dj */ | |
51 | #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX) | |
52 | #define HAVE_TARGET_EXECUTABLE_SUFFIX | |
ed1f651b | 53 | #endif |
f6ec7e54 | 54 | |
45936a85 DD |
55 | /* By default there is no special suffix for host executables. */ |
56 | #ifdef HOST_EXECUTABLE_SUFFIX | |
57 | #define HAVE_HOST_EXECUTABLE_SUFFIX | |
f70165f6 | 58 | #else |
45936a85 DD |
59 | #define HOST_EXECUTABLE_SUFFIX "" |
60 | #endif | |
61 | ||
62 | /* By default, the suffix for target object files is ".o". */ | |
63 | #ifdef TARGET_OBJECT_SUFFIX | |
64 | #define HAVE_TARGET_OBJECT_SUFFIX | |
65 | #else | |
66 | #define TARGET_OBJECT_SUFFIX ".o" | |
ed7dae04 RK |
67 | #endif |
68 | ||
8b60264b | 69 | static const char dir_separator_str[] = { DIR_SEPARATOR, 0 }; |
48ff801b | 70 | |
512b62fb JM |
71 | /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */ |
72 | #ifndef LIBRARY_PATH_ENV | |
73 | #define LIBRARY_PATH_ENV "LIBRARY_PATH" | |
74 | #endif | |
75 | ||
ed1f651b RS |
76 | /* If a stage of compilation returns an exit status >= 1, |
77 | compilation of that file ceases. */ | |
78 | ||
79 | #define MIN_FATAL_STATUS 1 | |
80 | ||
69927b59 NB |
81 | /* Flag set by cppspec.c to 1. */ |
82 | int is_cpp_driver; | |
83 | ||
110abdbc | 84 | /* Flag set to nonzero if an @file argument has been supplied to gcc. */ |
2091ff66 NF |
85 | static bool at_file_supplied; |
86 | ||
f5fa9a5b PE |
87 | /* Definition of string containing the arguments given to configure. */ |
88 | #include "configargs.h" | |
89 | ||
b8468bc7 NC |
90 | /* Flag saying to print the command line options understood by gcc and its |
91 | sub-processes. */ | |
92 | ||
93 | static int print_help_list; | |
94 | ||
41fd0f9b RAE |
95 | /* Flag saying to print the version of gcc and its sub-processes. */ |
96 | ||
97 | static int print_version; | |
98 | ||
99f78cdd IR |
99 | /* Flag indicating whether we should ONLY print the command and |
100 | arguments (like verbose_flag) without executing the command. | |
101 | Displayed arguments are quoted so that the generated command | |
102 | line is suitable for execution. This is intended for use in | |
103 | shell scripts to capture the driver-generated command line. */ | |
104 | static int verbose_only_flag; | |
105 | ||
c662432e | 106 | /* Flag indicating how to print command line options of sub-processes. */ |
91606ce2 | 107 | |
c662432e | 108 | static int print_subprocess_help; |
91606ce2 | 109 | |
bdde878c AO |
110 | /* Whether we should report subprocess execution times to a file. */ |
111 | ||
112 | FILE *report_times_to_file = NULL; | |
113 | ||
4977bab6 ZW |
114 | /* Nonzero means place this string before uses of /, so that include |
115 | and library files can be found in an alternate location. */ | |
116 | ||
db720d9a | 117 | #ifdef TARGET_SYSTEM_ROOT |
4977bab6 | 118 | static const char *target_system_root = TARGET_SYSTEM_ROOT; |
db720d9a DJ |
119 | #else |
120 | static const char *target_system_root = 0; | |
121 | #endif | |
4977bab6 | 122 | |
047d636f DJ |
123 | /* Nonzero means pass the updated target_system_root to the compiler. */ |
124 | ||
125 | static int target_system_root_changed; | |
126 | ||
e7f13528 GP |
127 | /* Nonzero means append this string to target_system_root. */ |
128 | ||
129 | static const char *target_sysroot_suffix = 0; | |
130 | ||
131 | /* Nonzero means append this string to target_system_root for headers. */ | |
132 | ||
133 | static const char *target_sysroot_hdrs_suffix = 0; | |
134 | ||
ed1f651b RS |
135 | /* Nonzero means write "temp" files in source directory |
136 | and use the source file's name in them, and don't delete them. */ | |
137 | ||
14fdc613 MM |
138 | static enum save_temps { |
139 | SAVE_TEMPS_NONE, /* no -save-temps */ | |
140 | SAVE_TEMPS_CWD, /* -save-temps in current directory */ | |
141 | SAVE_TEMPS_OBJ /* -save-temps in object directory */ | |
142 | } save_temps_flag; | |
143 | ||
144 | /* Output file to use to get the object directory for -save-temps=obj */ | |
145 | static char *save_temps_prefix = 0; | |
146 | static size_t save_temps_length = 0; | |
ed1f651b | 147 | |
53117a2f | 148 | /* The compiler version. */ |
ed1f651b | 149 | |
3b304f5b | 150 | static const char *compiler_version; |
53117a2f | 151 | |
1401cf37 | 152 | /* The target version. */ |
53117a2f | 153 | |
37a4aa31 | 154 | static const char *const spec_version = DEFAULT_TARGET_VERSION; |
ed1f651b | 155 | |
1401cf37 | 156 | /* The target machine. */ |
ed1f651b | 157 | |
878f32c3 | 158 | static const char *spec_machine = DEFAULT_TARGET_MACHINE; |
ed1f651b | 159 | |
004fd4d5 RS |
160 | /* Nonzero if cross-compiling. |
161 | When -b is used, the value comes from the `specs' file. */ | |
162 | ||
2989d30c | 163 | #ifdef CROSS_DIRECTORY_STRUCTURE |
3b304f5b | 164 | static const char *cross_compile = "1"; |
004fd4d5 | 165 | #else |
3b304f5b | 166 | static const char *cross_compile = "0"; |
004fd4d5 RS |
167 | #endif |
168 | ||
14a774a9 RK |
169 | /* Greatest exit code of sub-processes that has been encountered up to |
170 | now. */ | |
171 | static int greatest_status = 1; | |
172 | ||
ed1f651b RS |
173 | /* This is the obstack which we use to allocate many strings. */ |
174 | ||
175 | static struct obstack obstack; | |
176 | ||
b3865ca9 | 177 | /* This is the obstack to build an environment variable to pass to |
6dc42e49 | 178 | collect2 that describes all of the relevant switches of what to |
b3865ca9 RS |
179 | pass the compiler in building the list of pointers to constructors |
180 | and destructors. */ | |
181 | ||
182 | static struct obstack collect_obstack; | |
183 | ||
99360286 DE |
184 | /* Forward declaration for prototypes. */ |
185 | struct path_prefix; | |
76391e5a | 186 | struct prefix_list; |
99360286 | 187 | |
1d088dee AJ |
188 | static void init_spec (void); |
189 | static void store_arg (const char *, int, int); | |
fe7df9c4 | 190 | static void insert_wrapper (const char *); |
1d088dee AJ |
191 | static char *load_specs (const char *); |
192 | static void read_specs (const char *, int); | |
193 | static void set_spec (const char *, const char *); | |
194 | static struct compiler *lookup_compiler (const char *, size_t, const char *); | |
00dcee0c AM |
195 | static char *build_search_list (const struct path_prefix *, const char *, |
196 | bool, bool); | |
e9c15f6e | 197 | static void xputenv (const char *); |
00dcee0c AM |
198 | static void putenv_from_prefixes (const struct path_prefix *, const char *, |
199 | bool); | |
1d088dee | 200 | static int access_check (const char *, int); |
00dcee0c | 201 | static char *find_a_file (const struct path_prefix *, const char *, int, bool); |
1d088dee | 202 | static void add_prefix (struct path_prefix *, const char *, const char *, |
1a5d37a1 | 203 | int, int, int); |
1d088dee | 204 | static void add_sysrooted_prefix (struct path_prefix *, const char *, |
1a5d37a1 | 205 | const char *, int, int, int); |
1d088dee AJ |
206 | static char *skip_whitespace (char *); |
207 | static void delete_if_ordinary (const char *); | |
208 | static void delete_temp_files (void); | |
209 | static void delete_failure_queue (void); | |
210 | static void clear_failure_queue (void); | |
211 | static int check_live_switch (int, int); | |
212 | static const char *handle_braces (const char *); | |
213 | static inline bool input_suffix_matches (const char *, const char *); | |
214 | static inline bool switch_matches (const char *, const char *, int); | |
215 | static inline void mark_matching_switches (const char *, const char *, int); | |
216 | static inline void process_marked_switches (void); | |
217 | static const char *process_brace_body (const char *, const char *, const char *, int, int); | |
218 | static const struct spec_function *lookup_spec_function (const char *); | |
219 | static const char *eval_spec_function (const char *, const char *); | |
220 | static const char *handle_spec_function (const char *); | |
221 | static char *save_string (const char *, int); | |
222 | static void set_collect_gcc_options (void); | |
223 | static int do_spec_1 (const char *, int, const char *); | |
224 | static int do_spec_2 (const char *); | |
225 | static void do_option_spec (const char *, const char *); | |
226 | static void do_self_spec (const char *); | |
227 | static const char *find_file (const char *); | |
00dcee0c | 228 | static int is_directory (const char *, bool); |
1d088dee AJ |
229 | static const char *validate_switches (const char *); |
230 | static void validate_all_switches (void); | |
231 | static inline void validate_switches_from_spec (const char *); | |
232 | static void give_switch (int, int); | |
233 | static int used_arg (const char *, int); | |
234 | static int default_arg (const char *, int); | |
235 | static void set_multilib_dir (void); | |
236 | static void print_multilib_info (void); | |
237 | static void perror_with_name (const char *); | |
1d088dee AJ |
238 | static void display_help (void); |
239 | static void add_preprocessor_option (const char *, int); | |
240 | static void add_assembler_option (const char *, int); | |
241 | static void add_linker_option (const char *, int); | |
60cf253a | 242 | static void process_command (unsigned int, struct cl_decoded_option *); |
1d088dee AJ |
243 | static int execute (void); |
244 | static void alloc_args (void); | |
245 | static void clear_args (void); | |
2dec80c7 | 246 | static void fatal_signal (int); |
328163dc | 247 | #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC) |
1d088dee AJ |
248 | static void init_gcc_specs (struct obstack *, const char *, const char *, |
249 | const char *); | |
6894579f | 250 | #endif |
40cdfca6 | 251 | #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX) |
1d088dee | 252 | static const char *convert_filename (const char *, int, int); |
40cdfca6 | 253 | #endif |
f3226a90 | 254 | |
30d8946b | 255 | static const char *getenv_spec_function (int, const char **); |
1d088dee AJ |
256 | static const char *if_exists_spec_function (int, const char **); |
257 | static const char *if_exists_else_spec_function (int, const char **); | |
3dd53121 | 258 | static const char *replace_outfile_spec_function (int, const char **); |
2642f659 | 259 | static const char *remove_outfile_spec_function (int, const char **); |
ed5b9f96 | 260 | static const char *version_compare_spec_function (int, const char **); |
953ff289 | 261 | static const char *include_spec_function (int, const char **); |
4adbd5dd | 262 | static const char *find_file_spec_function (int, const char **); |
c1ce46a5 | 263 | static const char *find_plugindir_spec_function (int, const char **); |
a0f87454 | 264 | static const char *print_asm_header_spec_function (int, const char **); |
2153915d AO |
265 | static const char *compare_debug_dump_opt_spec_function (int, const char **); |
266 | static const char *compare_debug_self_opt_spec_function (int, const char **); | |
267 | static const char *compare_debug_auxbase_opt_spec_function (int, const char **); | |
9a37bc07 | 268 | static const char *pass_through_libs_spec_func (int, const char **); |
ed1f651b | 269 | \f |
d991c721 BK |
270 | /* The Specs Language |
271 | ||
272 | Specs are strings containing lines, each of which (if not blank) | |
ed1f651b RS |
273 | is made up of a program name, and arguments separated by spaces. |
274 | The program name must be exact and start from root, since no path | |
275 | is searched and it is unreliable to depend on the current working directory. | |
276 | Redirection of input or output is not supported; the subprograms must | |
277 | accept filenames saying what files to read and write. | |
278 | ||
279 | In addition, the specs can contain %-sequences to substitute variable text | |
280 | or for conditional text. Here is a table of all defined %-sequences. | |
281 | Note that spaces are not generated automatically around the results of | |
282 | expanding these sequences; therefore, you can concatenate them together | |
283 | or with constant text in a single argument. | |
284 | ||
285 | %% substitute one % into the program name or argument. | |
286 | %i substitute the name of the input file being processed. | |
287 | %b substitute the basename of the input file being processed. | |
288 | This is the substring up to (and not including) the last period | |
14fdc613 | 289 | and not including the directory unless -save-temps was specified |
3beb864c | 290 | to put temporaries in a different location. |
ea414c97 | 291 | %B same as %b, but include the file suffix (text after the last period). |
dd75c292 CB |
292 | %gSUFFIX |
293 | substitute a file name that has suffix SUFFIX and is chosen | |
294 | once per compilation, and mark the argument a la %d. To reduce | |
295 | exposure to denial-of-service attacks, the file name is now | |
296 | chosen in a way that is hard to predict even when previously | |
297 | chosen file names are known. For example, `%g.s ... %g.o ... %g.s' | |
298 | might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches | |
a92dd235 | 299 | the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it |
a1d9074c TT |
300 | had been pre-processed. Previously, %g was simply substituted |
301 | with a file name chosen once per compilation, without regard | |
302 | to any appended suffix (which was therefore treated just like | |
303 | ordinary text), making such attacks more likely to succeed. | |
4977bab6 ZW |
304 | %|SUFFIX |
305 | like %g, but if -pipe is in effect, expands simply to "-". | |
306 | %mSUFFIX | |
307 | like %g, but if -pipe is in effect, expands to nothing. (We have both | |
308 | %| and %m to accommodate differences between system assemblers; see | |
309 | the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.) | |
dd75c292 CB |
310 | %uSUFFIX |
311 | like %g, but generates a new temporary file name even if %uSUFFIX | |
312 | was already seen. | |
313 | %USUFFIX | |
314 | substitutes the last file name generated with %uSUFFIX, generating a | |
315 | new one if there is no such last file name. In the absence of any | |
316 | %uSUFFIX, this is just like %gSUFFIX, except they don't share | |
317 | the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s' | |
318 | would involve the generation of two distinct file names, one | |
319 | for each `%g.s' and another for each `%U.s'. Previously, %U was | |
320 | simply substituted with a file name chosen for the previous %u, | |
321 | without regard to any appended suffix. | |
49009afd JL |
322 | %jSUFFIX |
323 | substitutes the name of the HOST_BIT_BUCKET, if any, and if it is | |
324 | writable, and if save-temps is off; otherwise, substitute the name | |
325 | of a temporary file, just like %u. This temporary file is not | |
326 | meant for communication between processes, but rather as a junk | |
327 | disposal mechanism. | |
11972f66 NS |
328 | %.SUFFIX |
329 | substitutes .SUFFIX for the suffixes of a matched switch's args when | |
330 | it is subsequently output with %*. SUFFIX is terminated by the next | |
331 | space or %. | |
ed1f651b | 332 | %d marks the argument containing or following the %d as a |
ee618c17 | 333 | temporary file name, so that that file will be deleted if GCC exits |
ed1f651b RS |
334 | successfully. Unlike %g, this contributes no text to the argument. |
335 | %w marks the argument containing or following the %w as the | |
336 | "output file" of this compilation. This puts the argument | |
337 | into the sequence of arguments that %o will substitute later. | |
17211ab5 | 338 | %V indicates that this compilation produces no "output file". |
ed1f651b RS |
339 | %W{...} |
340 | like %{...} but mark last argument supplied within | |
341 | as a file to be deleted on failure. | |
342 | %o substitutes the names of all the output files, with spaces | |
343 | automatically placed around them. You should write spaces | |
344 | around the %o as well or the results are undefined. | |
345 | %o is for use in the specs for running the linker. | |
346 | Input files whose names have no recognized suffix are not compiled | |
347 | at all, but they are included among the output files, so they will | |
348 | be linked. | |
dd75c292 | 349 | %O substitutes the suffix for object files. Note that this is |
a1d9074c TT |
350 | handled specially when it immediately follows %g, %u, or %U |
351 | (with or without a suffix argument) because of the need for | |
352 | those to form complete file names. The handling is such that | |
353 | %O is treated exactly as if it had already been substituted, | |
354 | except that %g, %u, and %U do not currently support additional | |
355 | SUFFIX characters following %O as they would following, for | |
356 | example, `.o'. | |
047d636f | 357 | %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot |
2b6dd222 JM |
358 | (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH |
359 | and -B options) and -imultilib as necessary. | |
ed1f651b RS |
360 | %s current argument is the name of a library or startup file of some sort. |
361 | Search for that file in a standard list of directories | |
362 | and substitute the full name found. | |
363 | %eSTR Print STR as an error message. STR is terminated by a newline. | |
364 | Use this when inconsistent options are detected. | |
09da1532 | 365 | %nSTR Print STR as a notice. STR is terminated by a newline. |
ed1f651b RS |
366 | %x{OPTION} Accumulate an option for %X. |
367 | %X Output the accumulated linker options specified by compilations. | |
c9ebacb8 | 368 | %Y Output the accumulated assembler options specified by compilations. |
57cb9b60 | 369 | %Z Output the accumulated preprocessor options specified by compilations. |
ed1f651b RS |
370 | %a process ASM_SPEC as a spec. |
371 | This allows config.h to specify part of the spec for running as. | |
372 | %A process ASM_FINAL_SPEC as a spec. A capital A is actually | |
373 | used here. This can be used to run a post-processor after the | |
9ec36da5 | 374 | assembler has done its job. |
48ff801b | 375 | %D Dump out a -L option for each directory in startfile_prefixes. |
60103a34 | 376 | If multilib_dir is set, extra entries are generated with it affixed. |
ed1f651b RS |
377 | %l process LINK_SPEC as a spec. |
378 | %L process LIB_SPEC as a spec. | |
68d69835 | 379 | %G process LIBGCC_SPEC as a spec. |
380e5ca4 MM |
380 | %R Output the concatenation of target_system_root and |
381 | target_sysroot_suffix. | |
ed1f651b RS |
382 | %S process STARTFILE_SPEC as a spec. A capital S is actually used here. |
383 | %E process ENDFILE_SPEC as a spec. A capital E is actually used here. | |
9db0819e | 384 | %C process CPP_SPEC as a spec. |
ed1f651b RS |
385 | %1 process CC1_SPEC as a spec. |
386 | %2 process CC1PLUS_SPEC as a spec. | |
387 | %* substitute the variable part of a matched option. (See below.) | |
388 | Note that each comma in the substituted string is replaced by | |
389 | a single space. | |
4977bab6 ZW |
390 | %<S remove all occurrences of -S from the command line. |
391 | Note - this command is position dependent. % commands in the | |
392 | spec string before this one will see -S, % commands in the | |
393 | spec string after this one will not. | |
96f5b137 | 394 | %>S Similar to "%<S", but keep it in the GCC command line. |
4977bab6 ZW |
395 | %<S* remove all occurrences of all switches beginning with -S from the |
396 | command line. | |
f3226a90 JT |
397 | %:function(args) |
398 | Call the named function FUNCTION, passing it ARGS. ARGS is | |
399 | first processed as a nested spec string, then split into an | |
400 | argument vector in the usual fashion. The function returns | |
401 | a string which is processed as if it had appeared literally | |
402 | as part of the current spec. | |
ee618c17 | 403 | %{S} substitutes the -S switch, if that switch was given to GCC. |
ed1f651b RS |
404 | If that switch was not specified, this substitutes nothing. |
405 | Here S is a metasyntactic variable. | |
ee618c17 | 406 | %{S*} substitutes all the switches specified to GCC whose names start |
196a37f4 | 407 | with -S. This is used for -o, -I, etc; switches that take |
ee618c17 | 408 | arguments. GCC considers `-o foo' as being one switch whose |
ed1f651b RS |
409 | name starts with `o'. %{o*} would substitute this text, |
410 | including the space; thus, two arguments would be generated. | |
196a37f4 | 411 | %{S*&T*} likewise, but preserve order of S and T options (the order |
1d088dee AJ |
412 | of S and T in the spec is not significant). Can be any number |
413 | of ampersand-separated variables; for each the wild card is | |
414 | optional. Useful for CPP as %{D*&U*&A*}. | |
4977bab6 | 415 | |
ee618c17 BE |
416 | %{S:X} substitutes X, if the -S switch was given to GCC. |
417 | %{!S:X} substitutes X, if the -S switch was NOT given to GCC. | |
4977bab6 | 418 | %{S*:X} substitutes X if one or more switches whose names start |
ee618c17 | 419 | with -S was given to GCC. Normally X is substituted only |
4977bab6 ZW |
420 | once, no matter how many such switches appeared. However, |
421 | if %* appears somewhere in X, then X will be substituted | |
422 | once for each matching switch, with the %* replaced by the | |
423 | part of that switch that matched the '*'. | |
424 | %{.S:X} substitutes X, if processing a file with suffix S. | |
425 | %{!.S:X} substitutes X, if NOT processing a file with suffix S. | |
48137d59 GK |
426 | %{,S:X} substitutes X, if processing a file which will use spec S. |
427 | %{!,S:X} substitutes X, if NOT processing a file which will use spec S. | |
3beb864c | 428 | |
ee618c17 | 429 | %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be |
48137d59 GK |
430 | combined with '!', '.', ',', and '*' as above binding stronger |
431 | than the OR. | |
4977bab6 ZW |
432 | If %* appears in X, all of the alternatives must be starred, and |
433 | only the first matching alternative is substituted. | |
ee618c17 BE |
434 | %{S:X; if S was given to GCC, substitutes X; |
435 | T:Y; else if T was given to GCC, substitutes Y; | |
4977bab6 | 436 | :D} else substitutes D. There can be as many clauses as you need. |
48137d59 | 437 | This may be combined with '.', '!', ',', '|', and '*' as above. |
4977bab6 | 438 | |
b3865ca9 | 439 | %(Spec) processes a specification defined in a specs file as *Spec: |
4089dfab | 440 | %[Spec] as above, but put __ around -D arguments |
ed1f651b | 441 | |
4977bab6 | 442 | The conditional text X in a %{S:X} or similar construct may contain |
ed1f651b | 443 | other nested % constructs or spaces, or even newlines. They are |
4977bab6 ZW |
444 | processed as usual, as described above. Trailing white space in X is |
445 | ignored. White space may also appear anywhere on the left side of the | |
446 | colon in these constructs, except between . or * and the corresponding | |
447 | word. | |
ed1f651b | 448 | |
6c396fb5 | 449 | The -O, -f, -m, and -W switches are handled specifically in these |
f5b0eb4e RK |
450 | constructs. If another value of -O or the negated form of a -f, -m, or |
451 | -W switch is found later in the command line, the earlier switch | |
6c396fb5 RK |
452 | value is ignored, except with {S*} where S is just one letter; this |
453 | passes all matching options. | |
f5b0eb4e | 454 | |
9bf09437 RH |
455 | The character | at the beginning of the predicate text is used to indicate |
456 | that a command should be piped to the following command, but only if -pipe | |
457 | is specified. | |
ed1f651b | 458 | |
ee618c17 | 459 | Note that it is built into GCC which switches take arguments and which |
ed1f651b RS |
460 | do not. You might think it would be useful to generalize this to |
461 | allow each compiler's spec to say which switches take arguments. But | |
ee618c17 | 462 | this cannot be done in a consistent fashion. GCC cannot even decide |
ed1f651b RS |
463 | which input files have been specified without knowing which switches |
464 | take arguments, and it must know which input files to compile in order | |
465 | to tell which compilers to run. | |
466 | ||
ee618c17 | 467 | GCC also knows implicitly that arguments starting in `-l' are to be |
ed1f651b RS |
468 | treated as compiler output files, and passed to the linker in their |
469 | proper position among the other output files. */ | |
470 | \f | |
0fef3fd0 | 471 | /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */ |
ed1f651b RS |
472 | |
473 | /* config.h can define ASM_SPEC to provide extra args to the assembler | |
474 | or extra switch-translations. */ | |
475 | #ifndef ASM_SPEC | |
476 | #define ASM_SPEC "" | |
477 | #endif | |
478 | ||
479 | /* config.h can define ASM_FINAL_SPEC to run a post processor after | |
480 | the assembler has run. */ | |
481 | #ifndef ASM_FINAL_SPEC | |
482 | #define ASM_FINAL_SPEC "" | |
483 | #endif | |
484 | ||
485 | /* config.h can define CPP_SPEC to provide extra args to the C preprocessor | |
486 | or extra switch-translations. */ | |
487 | #ifndef CPP_SPEC | |
488 | #define CPP_SPEC "" | |
489 | #endif | |
490 | ||
491 | /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus | |
492 | or extra switch-translations. */ | |
493 | #ifndef CC1_SPEC | |
494 | #define CC1_SPEC "" | |
495 | #endif | |
496 | ||
497 | /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus | |
498 | or extra switch-translations. */ | |
499 | #ifndef CC1PLUS_SPEC | |
500 | #define CC1PLUS_SPEC "" | |
501 | #endif | |
502 | ||
503 | /* config.h can define LINK_SPEC to provide extra args to the linker | |
504 | or extra switch-translations. */ | |
505 | #ifndef LINK_SPEC | |
506 | #define LINK_SPEC "" | |
507 | #endif | |
508 | ||
509 | /* config.h can define LIB_SPEC to override the default libraries. */ | |
510 | #ifndef LIB_SPEC | |
68d69835 JM |
511 | #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}" |
512 | #endif | |
513 | ||
6de9cd9a DN |
514 | /* mudflap specs */ |
515 | #ifndef MFWRAP_SPEC | |
516 | /* XXX: valid only for GNU ld */ | |
517 | /* XXX: should exactly match hooks provided by libmudflap.a */ | |
518 | #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \ | |
519 | --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\ | |
520 | --wrap=mmap --wrap=munmap --wrap=alloca\ | |
7544a87f | 521 | } %{fmudflapth: --wrap=pthread_create\ |
6de9cd9a DN |
522 | }} %{fmudflap|fmudflapth: --wrap=main}" |
523 | #endif | |
524 | #ifndef MFLIB_SPEC | |
7904f95f | 525 | #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}" |
6de9cd9a DN |
526 | #endif |
527 | ||
7458026b ILT |
528 | /* When using -fsplit-stack we need to wrap pthread_create, in order |
529 | to initialize the stack guard. We always use wrapping, rather than | |
530 | shared library ordering, and we keep the wrapper function in | |
531 | libgcc. This is not yet a real spec, though it could become one; | |
532 | it is currently just stuffed into LINK_SPEC. FIXME: This wrapping | |
533 | only works with GNU ld and gold. FIXME: This is incompatible with | |
534 | -fmudflap when linking statically, which wants to do its own | |
535 | wrapping. */ | |
536 | #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}" | |
537 | ||
68d69835 JM |
538 | /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is |
539 | included. */ | |
540 | #ifndef LIBGCC_SPEC | |
328163dc MA |
541 | #if defined(REAL_LIBGCC_SPEC) |
542 | #define LIBGCC_SPEC REAL_LIBGCC_SPEC | |
57642751 | 543 | #elif defined(LINK_LIBGCC_SPECIAL_1) |
68d69835 | 544 | /* Have gcc do the search for libgcc.a. */ |
ba2b7435 | 545 | #define LIBGCC_SPEC "libgcc.a%s" |
68d69835 | 546 | #else |
ba2b7435 | 547 | #define LIBGCC_SPEC "-lgcc" |
68d69835 | 548 | #endif |
ed1f651b RS |
549 | #endif |
550 | ||
551 | /* config.h can define STARTFILE_SPEC to override the default crt0 files. */ | |
552 | #ifndef STARTFILE_SPEC | |
553 | #define STARTFILE_SPEC \ | |
adcb8d7d | 554 | "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}" |
ed1f651b RS |
555 | #endif |
556 | ||
ed1f651b RS |
557 | /* config.h can define ENDFILE_SPEC to override the default crtn files. */ |
558 | #ifndef ENDFILE_SPEC | |
559 | #define ENDFILE_SPEC "" | |
560 | #endif | |
561 | ||
10da1131 BM |
562 | #ifndef LINKER_NAME |
563 | #define LINKER_NAME "collect2" | |
564 | #endif | |
565 | ||
c8aea42c PB |
566 | #ifdef HAVE_AS_DEBUG_PREFIX_MAP |
567 | #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}" | |
568 | #else | |
569 | #define ASM_MAP "" | |
570 | #endif | |
571 | ||
5f0e9ea2 GK |
572 | /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g' |
573 | to the assembler. */ | |
574 | #ifndef ASM_DEBUG_SPEC | |
b2ace8a4 JJ |
575 | # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \ |
576 | && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG) | |
c8aea42c PB |
577 | # define ASM_DEBUG_SPEC \ |
578 | (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \ | |
c7b94907 MM |
579 | ? "%{!g0:%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}}" ASM_MAP \ |
580 | : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP) | |
b2ace8a4 JJ |
581 | # else |
582 | # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG) | |
c7b94907 | 583 | # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP |
b2ace8a4 JJ |
584 | # endif |
585 | # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) | |
c7b94907 | 586 | # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP |
5f0e9ea2 | 587 | # endif |
5f0e9ea2 GK |
588 | # endif |
589 | #endif | |
8a63621f JJ |
590 | #ifndef ASM_DEBUG_SPEC |
591 | # define ASM_DEBUG_SPEC "" | |
592 | #endif | |
5f0e9ea2 | 593 | |
ea414c97 ZW |
594 | /* Here is the spec for running the linker, after compiling all files. */ |
595 | ||
bbd7687d DM |
596 | /* This is overridable by the target in case they need to specify the |
597 | -lgcc and -lc order specially, yet not require them to override all | |
598 | of LINK_COMMAND_SPEC. */ | |
599 | #ifndef LINK_GCC_C_SEQUENCE_SPEC | |
600 | #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G" | |
601 | #endif | |
602 | ||
77008252 JJ |
603 | #ifndef LINK_SSP_SPEC |
604 | #ifdef TARGET_LIBC_PROVIDES_SSP | |
605 | #define LINK_SSP_SPEC "%{fstack-protector:}" | |
606 | #else | |
ec92bd4b | 607 | #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}" |
77008252 JJ |
608 | #endif |
609 | #endif | |
610 | ||
24a4dd31 JJ |
611 | #ifndef LINK_PIE_SPEC |
612 | #ifdef HAVE_LD_PIE | |
613 | #define LINK_PIE_SPEC "%{pie:-pie} " | |
614 | #else | |
615 | #define LINK_PIE_SPEC "%{pie:} " | |
616 | #endif | |
617 | #endif | |
618 | ||
cd533689 PP |
619 | #ifndef LINK_BUILDID_SPEC |
620 | # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID) | |
621 | # define LINK_BUILDID_SPEC "%{!r:--build-id} " | |
622 | # endif | |
623 | #endif | |
624 | ||
55b46574 | 625 | /* Conditional to test whether the LTO plugin is used or not. |
56e22cab JH |
626 | FIXME: For slim LTO we will need to enable plugin unconditionally. This |
627 | still cause problems with PLUGIN_LD != LD and when plugin is built but | |
628 | not useable. For GCC 4.6 we don't support slim LTO and thus we can enable | |
629 | plugin only when LTO is enabled. We still honor explicit | |
55b46574 RO |
630 | -fuse-linker-plugin if the linker used understands -plugin. */ |
631 | ||
632 | /* The linker has some plugin support. */ | |
633 | #if HAVE_LTO_PLUGIN > 0 | |
634 | /* The linker used has full plugin support, use LTO plugin by default. */ | |
635 | #if HAVE_LTO_PLUGIN == 2 | |
56e22cab JH |
636 | #define PLUGIN_COND "!fno-use-linker-plugin:%{flto|flto=*|fuse-linker-plugin" |
637 | #define PLUGIN_COND_CLOSE "}" | |
96bdf9b4 | 638 | #else |
55b46574 RO |
639 | /* The linker used has limited plugin support, use LTO plugin with explicit |
640 | -fuse-linker-plugin. */ | |
96bdf9b4 | 641 | #define PLUGIN_COND "fuse-linker-plugin" |
56e22cab | 642 | #define PLUGIN_COND_CLOSE "" |
96bdf9b4 | 643 | #endif |
55b46574 RO |
644 | #define LINK_PLUGIN_SPEC \ |
645 | "%{"PLUGIN_COND": \ | |
646 | -plugin %(linker_plugin_file) \ | |
647 | -plugin-opt=%(lto_wrapper) \ | |
648 | -plugin-opt=-fresolution=%u.res \ | |
649 | %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \ | |
650 | }"PLUGIN_COND_CLOSE | |
651 | #else | |
652 | /* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */ | |
653 | #define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\ | |
654 | %e-fuse-linker-plugin is not supported in this configuration}" | |
655 | #endif | |
96bdf9b4 | 656 | |
cd533689 | 657 | |
ea414c97 ZW |
658 | /* -u* was put back because both BSD and SysV seem to support it. */ |
659 | /* %{static:} simply prevents an error message if the target machine | |
660 | doesn't handle -static. */ | |
661 | /* We want %{T*} after %{L*} and %D so that it can be used to specify linker | |
662 | scripts which exist in user specified directories, or in standard | |
663 | directories. */ | |
014d92e1 | 664 | /* We pass any -flto flags on to the linker, which is expected |
d7f09764 | 665 | to understand them. In practice, this means it had better be collect2. */ |
fa381cb2 | 666 | /* %{e*} includes -export-dynamic; see comment in common.opt. */ |
ea414c97 ZW |
667 | #ifndef LINK_COMMAND_SPEC |
668 | #define LINK_COMMAND_SPEC "\ | |
669 | %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\ | |
55b46574 RO |
670 | %(linker) " \ |
671 | LINK_PLUGIN_SPEC \ | |
672 | "%{flto|flto=*:%<fcompare-debug*} \ | |
56e22cab | 673 | %{flto} %{flto=*} %l " LINK_PIE_SPEC \ |
12b57b0f JM |
674 | "%X %{o*} %{e*} %{N} %{n} %{r}\ |
675 | %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}}\ | |
8beb0d9e | 676 | %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\ |
7458026b ILT |
677 | %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}\ |
678 | %(mflib) " STACK_SPLIT_SPEC "\ | |
a123d175 | 679 | %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\ |
9714c911 | 680 | %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\ |
12b57b0f | 681 | %{!nostdlib:%{!nostartfiles:%E}} %{T*} }}}}}}" |
ea414c97 ZW |
682 | #endif |
683 | ||
684 | #ifndef LINK_LIBGCC_SPEC | |
57642751 DJ |
685 | /* Generate -L options for startfile prefix list. */ |
686 | # define LINK_LIBGCC_SPEC "%D" | |
ea414c97 ZW |
687 | #endif |
688 | ||
343f59d9 AM |
689 | #ifndef STARTFILE_PREFIX_SPEC |
690 | # define STARTFILE_PREFIX_SPEC "" | |
691 | #endif | |
692 | ||
380e5ca4 MM |
693 | #ifndef SYSROOT_SPEC |
694 | # define SYSROOT_SPEC "--sysroot=%R" | |
695 | #endif | |
696 | ||
e7f13528 GP |
697 | #ifndef SYSROOT_SUFFIX_SPEC |
698 | # define SYSROOT_SUFFIX_SPEC "" | |
699 | #endif | |
700 | ||
701 | #ifndef SYSROOT_HEADERS_SUFFIX_SPEC | |
702 | # define SYSROOT_HEADERS_SUFFIX_SPEC "" | |
703 | #endif | |
704 | ||
81bca2f5 | 705 | static const char *asm_debug; |
3b304f5b | 706 | static const char *cpp_spec = CPP_SPEC; |
3b304f5b ZW |
707 | static const char *cc1_spec = CC1_SPEC; |
708 | static const char *cc1plus_spec = CC1PLUS_SPEC; | |
bbd7687d | 709 | static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC; |
77008252 | 710 | static const char *link_ssp_spec = LINK_SSP_SPEC; |
3b304f5b ZW |
711 | static const char *asm_spec = ASM_SPEC; |
712 | static const char *asm_final_spec = ASM_FINAL_SPEC; | |
713 | static const char *link_spec = LINK_SPEC; | |
714 | static const char *lib_spec = LIB_SPEC; | |
6de9cd9a DN |
715 | static const char *mfwrap_spec = MFWRAP_SPEC; |
716 | static const char *mflib_spec = MFLIB_SPEC; | |
953ff289 | 717 | static const char *link_gomp_spec = ""; |
3b304f5b ZW |
718 | static const char *libgcc_spec = LIBGCC_SPEC; |
719 | static const char *endfile_spec = ENDFILE_SPEC; | |
720 | static const char *startfile_spec = STARTFILE_SPEC; | |
3b304f5b | 721 | static const char *linker_name_spec = LINKER_NAME; |
d7f09764 DN |
722 | static const char *linker_plugin_file_spec = ""; |
723 | static const char *lto_wrapper_spec = ""; | |
724 | static const char *lto_gcc_spec = ""; | |
ea414c97 ZW |
725 | static const char *link_command_spec = LINK_COMMAND_SPEC; |
726 | static const char *link_libgcc_spec = LINK_LIBGCC_SPEC; | |
343f59d9 | 727 | static const char *startfile_prefix_spec = STARTFILE_PREFIX_SPEC; |
380e5ca4 | 728 | static const char *sysroot_spec = SYSROOT_SPEC; |
e7f13528 GP |
729 | static const char *sysroot_suffix_spec = SYSROOT_SUFFIX_SPEC; |
730 | static const char *sysroot_hdrs_suffix_spec = SYSROOT_HEADERS_SUFFIX_SPEC; | |
ea414c97 ZW |
731 | |
732 | /* Standard options to cpp, cc1, and as, to reduce duplication in specs. | |
733 | There should be no need to override these in target dependent files, | |
734 | but we need to copy them to the specs file so that newer versions | |
735 | of the GCC driver can correctly drive older tool chains with the | |
736 | appropriate -B options. */ | |
737 | ||
e5f5feea NB |
738 | /* When cpplib handles traditional preprocessing, get rid of this, and |
739 | call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so | |
740 | that we default the front end language better. */ | |
ea414c97 | 741 | static const char *trad_capable_cpp = |
3028a95c | 742 | "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}"; |
ea414c97 | 743 | |
4ca1256f NB |
744 | /* We don't wrap .d files in %W{} since a missing .d file, and |
745 | therefore no dependency entry, confuses make into thinking a .o | |
746 | file that happens to exist is up-to-date. */ | |
ffdeea47 | 747 | static const char *cpp_unique_options = |
9cc54940 | 748 | "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\ |
c878765b JM |
749 | %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\ |
750 | %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\ | |
4ca1256f | 751 | %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\ |
3dfe046f | 752 | %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\ |
3a610de8 | 753 | %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\ |
c1ce46a5 | 754 | %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\ |
3a610de8 | 755 | %{H} %C %{D*&U*&A*} %{i*} %Z %i\ |
6de9cd9a DN |
756 | %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\ |
757 | %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\ | |
56cd5b95 | 758 | %{E|M|MM:%W{o*}}"; |
ffdeea47 JJ |
759 | |
760 | /* This contains cpp options which are common with cc1_options and are passed | |
059ba716 CD |
761 | only when preprocessing only to avoid duplication. We pass the cc1 spec |
762 | options to the preprocessor so that it the cc1 spec may manipulate | |
763 | options used to set target flags. Those special target flags settings may | |
764 | in turn cause preprocessor symbols to be defined specially. */ | |
ffdeea47 | 765 | static const char *cpp_options = |
740ca4b2 | 766 | "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\ |
09828811 | 767 | %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\ |
14fdc613 | 768 | %{undef} %{save-temps*:-fpch-preprocess}"; |
ea414c97 | 769 | |
8b968bd1 MW |
770 | /* This contains cpp options which are not passed when the preprocessor |
771 | output will be used by another program. */ | |
772 | static const char *cpp_debug_options = "%{d*}"; | |
773 | ||
708bceb7 | 774 | /* NB: This is shared amongst all front-ends, except for Ada. */ |
ea414c97 ZW |
775 | static const char *cc1_options = |
776 | "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\ | |
c1ce46a5 | 777 | %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\ |
1890bccc | 778 | %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\ |
2153915d AO |
779 | %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \ |
780 | %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \ | |
740ca4b2 | 781 | %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\ |
3df89291 | 782 | %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\ |
dd9f93dc | 783 | %{Qn:-fno-ident} %{Qy:} %{-help:--help}\ |
e200444e JM |
784 | %{-target-help:--target-help}\ |
785 | %{-version:--version}\ | |
786 | %{-help=*:--help=%*}\ | |
49009afd | 787 | %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\ |
6de9cd9a | 788 | %{fsyntax-only:-o %j} %{-param*}\ |
ee4c708e BE |
789 | %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\ |
790 | %{coverage:-fprofile-arcs -ftest-coverage}"; | |
ea414c97 ZW |
791 | |
792 | static const char *asm_options = | |
a016dc83 | 793 | "%{-target-help:%:print-asm-header()} " |
dc60b775 CD |
794 | #if HAVE_GNU_AS |
795 | /* If GNU AS is used, then convert -w (no warnings), -I, and -v | |
796 | to the assembler equivalents. */ | |
797 | "%{v} %{w:-W} %{I*} " | |
798 | #endif | |
799 | "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}"; | |
ffd86336 | 800 | |
5a8e2650 | 801 | static const char *invoke_as = |
4977bab6 | 802 | #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT |
d7f09764 DN |
803 | "%{!fwpa:\ |
804 | %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\ | |
805 | %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\ | |
806 | }"; | |
4977bab6 | 807 | #else |
d7f09764 DN |
808 | "%{!fwpa:\ |
809 | %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\ | |
810 | %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\ | |
811 | }"; | |
4977bab6 | 812 | #endif |
5a8e2650 | 813 | |
ffd86336 | 814 | /* Some compilers have limits on line lengths, and the multilib_select |
961b7009 MM |
815 | and/or multilib_matches strings can be very long, so we build them at |
816 | run time. */ | |
ffd86336 | 817 | static struct obstack multilib_obstack; |
3b304f5b ZW |
818 | static const char *multilib_select; |
819 | static const char *multilib_matches; | |
820 | static const char *multilib_defaults; | |
821 | static const char *multilib_exclusions; | |
961b7009 MM |
822 | |
823 | /* Check whether a particular argument is a default argument. */ | |
824 | ||
825 | #ifndef MULTILIB_DEFAULTS | |
826 | #define MULTILIB_DEFAULTS { "" } | |
827 | #endif | |
828 | ||
d25a45d4 | 829 | static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS; |
ed1f651b | 830 | |
db36994b RS |
831 | #ifndef DRIVER_SELF_SPECS |
832 | #define DRIVER_SELF_SPECS "" | |
833 | #endif | |
834 | ||
953ff289 DN |
835 | /* Adding -fopenmp should imply pthreads. This is particularly important |
836 | for targets that use different start files and suchlike. */ | |
837 | #ifndef GOMP_SELF_SPECS | |
daf49354 | 838 | #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}" |
953ff289 DN |
839 | #endif |
840 | ||
841 | static const char *const driver_self_specs[] = { | |
b5b8b0ac | 842 | "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns", |
e11ddaf5 | 843 | DRIVER_SELF_SPECS, CONFIGURE_SPECS, GOMP_SELF_SPECS |
953ff289 | 844 | }; |
db36994b | 845 | |
7816bea0 DJ |
846 | #ifndef OPTION_DEFAULT_SPECS |
847 | #define OPTION_DEFAULT_SPECS { "", "" } | |
848 | #endif | |
849 | ||
850 | struct default_spec | |
851 | { | |
852 | const char *name; | |
853 | const char *spec; | |
854 | }; | |
855 | ||
856 | static const struct default_spec | |
857 | option_default_specs[] = { OPTION_DEFAULT_SPECS }; | |
858 | ||
3ac63d94 NC |
859 | struct user_specs |
860 | { | |
d9ac3a07 | 861 | struct user_specs *next; |
878f32c3 | 862 | const char *filename; |
d9ac3a07 MM |
863 | }; |
864 | ||
865 | static struct user_specs *user_specs_head, *user_specs_tail; | |
866 | ||
ed1f651b RS |
867 | \f |
868 | /* Record the mapping from file suffixes for compilation specs. */ | |
869 | ||
870 | struct compiler | |
871 | { | |
878f32c3 | 872 | const char *suffix; /* Use this compiler for input files |
ed1f651b | 873 | whose names end in this suffix. */ |
ec32609a | 874 | |
ea414c97 | 875 | const char *spec; /* To use this compiler, run this spec. */ |
a9374841 MM |
876 | |
877 | const char *cpp_spec; /* If non-NULL, substitute this spec | |
878 | for `%C', rather than the usual | |
879 | cpp_spec. */ | |
1ea7e6ad | 880 | const int combinable; /* If nonzero, compiler can deal with |
0855eab7 | 881 | multiple source files at once (IMA). */ |
1ea7e6ad | 882 | const int needs_preprocessing; /* If nonzero, source files need to |
0855eab7 | 883 | be run through a preprocessor. */ |
ed1f651b RS |
884 | }; |
885 | ||
886 | /* Pointer to a vector of `struct compiler' that gives the spec for | |
887 | compiling a file, based on its suffix. | |
888 | A file that does not end in any of these suffixes will be passed | |
889 | unchanged to the loader and nothing else will be done to it. | |
890 | ||
891 | An entry containing two 0s is used to terminate the vector. | |
892 | ||
893 | If multiple entries match a file, the last matching one is used. */ | |
894 | ||
895 | static struct compiler *compilers; | |
896 | ||
897 | /* Number of entries in `compilers', not counting the null terminator. */ | |
898 | ||
899 | static int n_compilers; | |
900 | ||
901 | /* The default list of file name suffixes and their compilation specs. */ | |
902 | ||
5e65297b | 903 | static const struct compiler default_compilers[] = |
ed1f651b | 904 | { |
4689ad58 | 905 | /* Add lists of suffixes of known languages here. If those languages |
e9a25f70 JL |
906 | were not present when we built the driver, we will hit these copies |
907 | and be given a more meaningful error than "file not used since | |
4689ad58 | 908 | linking is not done". */ |
0855eab7 | 909 | {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0}, |
ad8c162b ZL |
910 | {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0}, |
911 | {".mii", "#Objective-C++", 0, 0, 0}, | |
7904f95f EC |
912 | {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0}, |
913 | {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0}, | |
0855eab7 CT |
914 | {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0}, |
915 | {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0}, | |
916 | {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0}, | |
3135ce84 FXC |
917 | {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0}, |
918 | {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0}, | |
919 | {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0}, | |
920 | {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0}, | |
921 | {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0}, | |
922 | {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0}, | |
923 | {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0}, | |
924 | {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0}, | |
0855eab7 CT |
925 | {".r", "#Ratfor", 0, 0, 0}, |
926 | {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0}, | |
927 | {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0}, | |
928 | {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0}, | |
7a938933 | 929 | {".go", "#Go", 0, 1, 0}, |
4689ad58 | 930 | /* Next come the entries for C. */ |
c3224d6f | 931 | {".c", "@c", 0, 0, 1}, |
ed1f651b | 932 | {"@c", |
5a8e2650 | 933 | /* cc1 has an integrated ISO C preprocessor. We should invoke the |
f458d1d5 | 934 | external preprocessor if -save-temps is given. */ |
f749a36b | 935 | "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\ |
5a8e2650 | 936 | %{!E:%{!M:%{!MM:\ |
3028a95c | 937 | %{traditional:\ |
f458d1d5 | 938 | %eGNU C no longer supports -traditional without -E}\ |
c3224d6f RG |
939 | %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \ |
940 | %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\ | |
941 | cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \ | |
942 | %(cc1_options)}\ | |
943 | %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\ | |
944 | cc1 %(cpp_unique_options) %(cc1_options)}}}\ | |
945 | %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1}, | |
ed1f651b | 946 | {"-", |
6ba40dd7 | 947 | "%{!E:%e-E or -x required when input is from standard input}\ |
0855eab7 CT |
948 | %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0}, |
949 | {".h", "@c-header", 0, 0, 0}, | |
ed1f651b | 950 | {"@c-header", |
17211ab5 GK |
951 | /* cc1 has an integrated ISO C preprocessor. We should invoke the |
952 | external preprocessor if -save-temps is given. */ | |
953 | "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\ | |
954 | %{!E:%{!M:%{!MM:\ | |
14fdc613 MM |
955 | %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \ |
956 | %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\ | |
957 | cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \ | |
0de12fcc | 958 | %(cc1_options)\ |
9cc54940 AC |
959 | %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\ |
960 | %W{o*:--output-pch=%*}}%V}\ | |
14fdc613 | 961 | %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\ |
17211ab5 | 962 | cc1 %(cpp_unique_options) %(cc1_options)\ |
9cc54940 AC |
963 | %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\ |
964 | %W{o*:--output-pch=%*}}%V}}}}}}", 0, 0, 0}, | |
c3224d6f | 965 | {".i", "@cpp-output", 0, 0, 0}, |
ed1f651b | 966 | {"@cpp-output", |
ca3da783 | 967 | "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0}, |
a0d43bac | 968 | {".s", "@assembler", 0, 0, 0}, |
ed1f651b | 969 | {"@assembler", |
a0d43bac JZ |
970 | "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0}, |
971 | {".sx", "@assembler-with-cpp", 0, 0, 0}, | |
972 | {".S", "@assembler-with-cpp", 0, 0, 0}, | |
ed1f651b | 973 | {"@assembler-with-cpp", |
4977bab6 | 974 | #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT |
2710d6d7 | 975 | "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\ |
8b968bd1 | 976 | %{E|M|MM:%(cpp_debug_options)}\ |
4977bab6 ZW |
977 | %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\ |
978 | as %(asm_debug) %(asm_options) %|.s %A }}}}" | |
979 | #else | |
2710d6d7 | 980 | "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\ |
4977bab6 ZW |
981 | %{E|M|MM:%(cpp_debug_options)}\ |
982 | %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\ | |
983 | as %(asm_debug) %(asm_options) %m.s %A }}}}" | |
984 | #endif | |
a0d43bac | 985 | , 0, 0, 0}, |
1d088dee | 986 | |
1346ae41 | 987 | #include "specs.h" |
f9da5064 | 988 | /* Mark end of table. */ |
0855eab7 | 989 | {0, 0, 0, 0, 0} |
ed1f651b RS |
990 | }; |
991 | ||
992 | /* Number of elements in default_compilers, not counting the terminator. */ | |
993 | ||
ca7558fc | 994 | static const int n_default_compilers = ARRAY_SIZE (default_compilers) - 1; |
ed1f651b | 995 | |
69d540bd NF |
996 | typedef char *char_p; /* For DEF_VEC_P. */ |
997 | DEF_VEC_P(char_p); | |
998 | DEF_VEC_ALLOC_P(char_p,heap); | |
999 | ||
ed1f651b | 1000 | /* A vector of options to give to the linker. |
368dfd3a | 1001 | These options are accumulated by %x, |
ed1f651b | 1002 | and substituted into the linker command with %X. */ |
69d540bd | 1003 | static VEC(char_p,heap) *linker_options; |
c9ebacb8 RS |
1004 | |
1005 | /* A vector of options to give to the assembler. | |
1006 | These options are accumulated by -Wa, | |
57cb9b60 | 1007 | and substituted into the assembler command with %Y. */ |
69d540bd | 1008 | static VEC(char_p,heap) *assembler_options; |
57cb9b60 JW |
1009 | |
1010 | /* A vector of options to give to the preprocessor. | |
1011 | These options are accumulated by -Wp, | |
1012 | and substituted into the preprocessor command with %Z. */ | |
69d540bd | 1013 | static VEC(char_p,heap) *preprocessor_options; |
ed1f651b | 1014 | \f |
ed1f651b | 1015 | static char * |
1d088dee | 1016 | skip_whitespace (char *p) |
ed1f651b RS |
1017 | { |
1018 | while (1) | |
1019 | { | |
1020 | /* A fully-blank line is a delimiter in the SPEC file and shouldn't | |
1021 | be considered whitespace. */ | |
1022 | if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n') | |
1023 | return p + 1; | |
1024 | else if (*p == '\n' || *p == ' ' || *p == '\t') | |
1025 | p++; | |
1026 | else if (*p == '#') | |
1027 | { | |
d25a45d4 KH |
1028 | while (*p != '\n') |
1029 | p++; | |
ed1f651b RS |
1030 | p++; |
1031 | } | |
1032 | else | |
1033 | break; | |
1034 | } | |
1035 | ||
1036 | return p; | |
1037 | } | |
2296d164 RK |
1038 | /* Structures to keep track of prefixes to try when looking for files. */ |
1039 | ||
1040 | struct prefix_list | |
1041 | { | |
8060c8ee | 1042 | const char *prefix; /* String to prepend to the path. */ |
2296d164 RK |
1043 | struct prefix_list *next; /* Next in linked list. */ |
1044 | int require_machine_suffix; /* Don't use without machine_suffix. */ | |
1045 | /* 2 means try both machine_suffix and just_machine_suffix. */ | |
5bbcd587 JJ |
1046 | int priority; /* Sort key - priority within list. */ |
1047 | int os_multilib; /* 1 if OS multilib scheme should be used, | |
1048 | 0 for GCC multilib scheme. */ | |
2296d164 RK |
1049 | }; |
1050 | ||
1051 | struct path_prefix | |
1052 | { | |
1053 | struct prefix_list *plist; /* List of prefixes to try */ | |
1054 | int max_len; /* Max length of a prefix in PLIST */ | |
1055 | const char *name; /* Name of this list (used in config stuff) */ | |
1056 | }; | |
1057 | ||
1058 | /* List of prefixes to try when looking for executables. */ | |
1059 | ||
1060 | static struct path_prefix exec_prefixes = { 0, 0, "exec" }; | |
1061 | ||
1062 | /* List of prefixes to try when looking for startup (crt0) files. */ | |
1063 | ||
1064 | static struct path_prefix startfile_prefixes = { 0, 0, "startfile" }; | |
1065 | ||
1066 | /* List of prefixes to try when looking for include files. */ | |
1067 | ||
1068 | static struct path_prefix include_prefixes = { 0, 0, "include" }; | |
1069 | ||
1070 | /* Suffix to attach to directories searched for commands. | |
1071 | This looks like `MACHINE/VERSION/'. */ | |
1072 | ||
1073 | static const char *machine_suffix = 0; | |
1074 | ||
1075 | /* Suffix to attach to directories searched for commands. | |
1076 | This is just `MACHINE/'. */ | |
1077 | ||
1078 | static const char *just_machine_suffix = 0; | |
1079 | ||
1080 | /* Adjusted value of GCC_EXEC_PREFIX envvar. */ | |
1081 | ||
1082 | static const char *gcc_exec_prefix; | |
1083 | ||
a8ee6e2d GK |
1084 | /* Adjusted value of standard_libexec_prefix. */ |
1085 | ||
1086 | static const char *gcc_libexec_prefix; | |
1087 | ||
2296d164 RK |
1088 | /* Default prefixes to attach to command names. */ |
1089 | ||
656c7a3a AL |
1090 | #ifndef STANDARD_STARTFILE_PREFIX_1 |
1091 | #define STANDARD_STARTFILE_PREFIX_1 "/lib/" | |
1092 | #endif | |
1093 | #ifndef STANDARD_STARTFILE_PREFIX_2 | |
1094 | #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/" | |
1095 | #endif | |
7904f95f | 1096 | |
2989d30c | 1097 | #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */ |
2296d164 RK |
1098 | #undef MD_EXEC_PREFIX |
1099 | #undef MD_STARTFILE_PREFIX | |
1100 | #undef MD_STARTFILE_PREFIX_1 | |
1101 | #endif | |
1102 | ||
1103 | /* If no prefixes defined, use the null string, which will disable them. */ | |
1104 | #ifndef MD_EXEC_PREFIX | |
1105 | #define MD_EXEC_PREFIX "" | |
1106 | #endif | |
1107 | #ifndef MD_STARTFILE_PREFIX | |
1108 | #define MD_STARTFILE_PREFIX "" | |
1109 | #endif | |
1110 | #ifndef MD_STARTFILE_PREFIX_1 | |
1111 | #define MD_STARTFILE_PREFIX_1 "" | |
1112 | #endif | |
1113 | ||
f4c0a303 CD |
1114 | /* These directories are locations set at configure-time based on the |
1115 | --prefix option provided to configure. Their initializers are | |
1116 | defined in Makefile.in. These paths are not *directly* used when | |
1117 | gcc_exec_prefix is set because, in that case, we know where the | |
1118 | compiler has been installed, and use paths relative to that | |
1119 | location instead. */ | |
27c38fbe | 1120 | static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX; |
f4c0a303 CD |
1121 | static const char *const standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX; |
1122 | static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX; | |
1123 | static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX; | |
1124 | ||
1125 | /* For native compilers, these are well-known paths containing | |
1126 | components that may be provided by the system. For cross | |
1127 | compilers, these paths are not used. */ | |
2296d164 | 1128 | static const char *md_exec_prefix = MD_EXEC_PREFIX; |
2296d164 RK |
1129 | static const char *md_startfile_prefix = MD_STARTFILE_PREFIX; |
1130 | static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1; | |
c662432e | 1131 | static const char *const standard_startfile_prefix_1 |
656c7a3a AL |
1132 | = STANDARD_STARTFILE_PREFIX_1; |
1133 | static const char *const standard_startfile_prefix_2 | |
1134 | = STANDARD_STARTFILE_PREFIX_2; | |
2296d164 | 1135 | |
f4c0a303 CD |
1136 | /* A relative path to be used in finding the location of tools |
1137 | relative to the driver. */ | |
27c38fbe | 1138 | static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX; |
a8ee6e2d | 1139 | |
2296d164 RK |
1140 | /* Subdirectory to use for locating libraries. Set by |
1141 | set_multilib_dir based on the compilation options. */ | |
1142 | ||
1143 | static const char *multilib_dir; | |
5bbcd587 JJ |
1144 | |
1145 | /* Subdirectory to use for locating libraries in OS conventions. Set by | |
1146 | set_multilib_dir based on the compilation options. */ | |
1147 | ||
1148 | static const char *multilib_os_dir; | |
ed1f651b | 1149 | \f |
0f41302f | 1150 | /* Structure to keep track of the specs that have been defined so far. |
4089dfab JL |
1151 | These are accessed using %(specname) or %[specname] in a compiler |
1152 | or link spec. */ | |
ed1f651b RS |
1153 | |
1154 | struct spec_list | |
1155 | { | |
79aff5ac MM |
1156 | /* The following 2 fields must be first */ |
1157 | /* to allow EXTRA_SPECS to be initialized */ | |
3b304f5b ZW |
1158 | const char *name; /* name of the spec. */ |
1159 | const char *ptr; /* available ptr if no static pointer */ | |
79aff5ac MM |
1160 | |
1161 | /* The following fields are not initialized */ | |
1162 | /* by EXTRA_SPECS */ | |
3b304f5b | 1163 | const char **ptr_spec; /* pointer to the spec itself. */ |
79aff5ac MM |
1164 | struct spec_list *next; /* Next spec in linked list. */ |
1165 | int name_len; /* length of the name */ | |
1166 | int alloc_p; /* whether string was allocated */ | |
ed1f651b RS |
1167 | }; |
1168 | ||
79aff5ac | 1169 | #define INIT_STATIC_SPEC(NAME,PTR) \ |
6496a589 | 1170 | { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 } |
79aff5ac | 1171 | |
3ac63d94 NC |
1172 | /* List of statically defined specs. */ |
1173 | static struct spec_list static_specs[] = | |
1174 | { | |
79aff5ac | 1175 | INIT_STATIC_SPEC ("asm", &asm_spec), |
5f0e9ea2 | 1176 | INIT_STATIC_SPEC ("asm_debug", &asm_debug), |
79aff5ac | 1177 | INIT_STATIC_SPEC ("asm_final", &asm_final_spec), |
ea414c97 | 1178 | INIT_STATIC_SPEC ("asm_options", &asm_options), |
5a8e2650 | 1179 | INIT_STATIC_SPEC ("invoke_as", &invoke_as), |
79aff5ac | 1180 | INIT_STATIC_SPEC ("cpp", &cpp_spec), |
ea414c97 | 1181 | INIT_STATIC_SPEC ("cpp_options", &cpp_options), |
8b968bd1 | 1182 | INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options), |
ffdeea47 | 1183 | INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options), |
ea414c97 | 1184 | INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp), |
79aff5ac | 1185 | INIT_STATIC_SPEC ("cc1", &cc1_spec), |
ea414c97 | 1186 | INIT_STATIC_SPEC ("cc1_options", &cc1_options), |
79aff5ac | 1187 | INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec), |
bbd7687d | 1188 | INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec), |
77008252 | 1189 | INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec), |
79aff5ac MM |
1190 | INIT_STATIC_SPEC ("endfile", &endfile_spec), |
1191 | INIT_STATIC_SPEC ("link", &link_spec), | |
1192 | INIT_STATIC_SPEC ("lib", &lib_spec), | |
6de9cd9a DN |
1193 | INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec), |
1194 | INIT_STATIC_SPEC ("mflib", &mflib_spec), | |
953ff289 | 1195 | INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec), |
79aff5ac MM |
1196 | INIT_STATIC_SPEC ("libgcc", &libgcc_spec), |
1197 | INIT_STATIC_SPEC ("startfile", &startfile_spec), | |
79aff5ac MM |
1198 | INIT_STATIC_SPEC ("cross_compile", &cross_compile), |
1199 | INIT_STATIC_SPEC ("version", &compiler_version), | |
1200 | INIT_STATIC_SPEC ("multilib", &multilib_select), | |
1201 | INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults), | |
1202 | INIT_STATIC_SPEC ("multilib_extra", &multilib_extra), | |
1203 | INIT_STATIC_SPEC ("multilib_matches", &multilib_matches), | |
0a8d6618 | 1204 | INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions), |
5bbcd587 | 1205 | INIT_STATIC_SPEC ("multilib_options", &multilib_options), |
10da1131 | 1206 | INIT_STATIC_SPEC ("linker", &linker_name_spec), |
d7f09764 DN |
1207 | INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec), |
1208 | INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec), | |
1209 | INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec), | |
ea414c97 | 1210 | INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec), |
2296d164 RK |
1211 | INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix), |
1212 | INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix), | |
1213 | INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1), | |
343f59d9 | 1214 | INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec), |
380e5ca4 | 1215 | INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec), |
e7f13528 GP |
1216 | INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec), |
1217 | INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec), | |
79aff5ac MM |
1218 | }; |
1219 | ||
1220 | #ifdef EXTRA_SPECS /* additional specs needed */ | |
829245be | 1221 | /* Structure to keep track of just the first two args of a spec_list. |
3ac63d94 | 1222 | That is all that the EXTRA_SPECS macro gives us. */ |
829245be KG |
1223 | struct spec_list_1 |
1224 | { | |
8b60264b KG |
1225 | const char *const name; |
1226 | const char *const ptr; | |
829245be KG |
1227 | }; |
1228 | ||
8b60264b | 1229 | static const struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS }; |
d25a45d4 | 1230 | static struct spec_list *extra_specs = (struct spec_list *) 0; |
79aff5ac MM |
1231 | #endif |
1232 | ||
1233 | /* List of dynamically allocates specs that have been defined so far. */ | |
1234 | ||
9218435e | 1235 | static struct spec_list *specs = (struct spec_list *) 0; |
79aff5ac | 1236 | \f |
f3226a90 JT |
1237 | /* List of static spec functions. */ |
1238 | ||
1239 | static const struct spec_function static_spec_functions[] = | |
1240 | { | |
30d8946b | 1241 | { "getenv", getenv_spec_function }, |
f3226a90 | 1242 | { "if-exists", if_exists_spec_function }, |
152a5a9c | 1243 | { "if-exists-else", if_exists_else_spec_function }, |
3dd53121 | 1244 | { "replace-outfile", replace_outfile_spec_function }, |
2642f659 | 1245 | { "remove-outfile", remove_outfile_spec_function }, |
ed5b9f96 | 1246 | { "version-compare", version_compare_spec_function }, |
953ff289 | 1247 | { "include", include_spec_function }, |
4adbd5dd | 1248 | { "find-file", find_file_spec_function }, |
c1ce46a5 | 1249 | { "find-plugindir", find_plugindir_spec_function }, |
a0f87454 | 1250 | { "print-asm-header", print_asm_header_spec_function }, |
2153915d AO |
1251 | { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function }, |
1252 | { "compare-debug-self-opt", compare_debug_self_opt_spec_function }, | |
1253 | { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function }, | |
9a37bc07 | 1254 | { "pass-through-libs", pass_through_libs_spec_func }, |
fa959ce4 MM |
1255 | #ifdef EXTRA_SPEC_FUNCTIONS |
1256 | EXTRA_SPEC_FUNCTIONS | |
1257 | #endif | |
f3226a90 JT |
1258 | { 0, 0 } |
1259 | }; | |
1260 | ||
1261 | static int processing_spec_function; | |
1262 | \f | |
049f6ec9 MM |
1263 | /* Add appropriate libgcc specs to OBSTACK, taking into account |
1264 | various permutations of -shared-libgcc, -shared, and such. */ | |
1265 | ||
328163dc | 1266 | #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC) |
8efcd34f AM |
1267 | |
1268 | #ifndef USE_LD_AS_NEEDED | |
1269 | #define USE_LD_AS_NEEDED 0 | |
1270 | #endif | |
1271 | ||
049f6ec9 | 1272 | static void |
1d088dee AJ |
1273 | init_gcc_specs (struct obstack *obstack, const char *shared_name, |
1274 | const char *static_name, const char *eh_name) | |
049f6ec9 | 1275 | { |
5c181756 AO |
1276 | char *buf; |
1277 | ||
5e4f1974 AM |
1278 | buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name, "}" |
1279 | "%{!static:%{!static-libgcc:" | |
8efcd34f | 1280 | #if USE_LD_AS_NEEDED |
5e4f1974 AM |
1281 | "%{!shared-libgcc:", |
1282 | static_name, " --as-needed ", shared_name, " --no-as-needed" | |
1283 | "}" | |
1284 | "%{shared-libgcc:", | |
1285 | shared_name, "%{!shared: ", static_name, "}" | |
1286 | "}" | |
765f1bf9 | 1287 | #else |
5e4f1974 AM |
1288 | "%{!shared:" |
1289 | "%{!shared-libgcc:", static_name, " ", eh_name, "}" | |
1290 | "%{shared-libgcc:", shared_name, " ", static_name, "}" | |
1291 | "}" | |
275b60d6 | 1292 | #ifdef LINK_EH_SPEC |
5e4f1974 AM |
1293 | "%{shared:" |
1294 | "%{shared-libgcc:", shared_name, "}" | |
1295 | "%{!shared-libgcc:", static_name, "}" | |
1296 | "}" | |
275b60d6 | 1297 | #else |
5e4f1974 | 1298 | "%{shared:", shared_name, "}" |
765f1bf9 | 1299 | #endif |
275b60d6 | 1300 | #endif |
5e4f1974 | 1301 | "}}", NULL); |
5c181756 AO |
1302 | |
1303 | obstack_grow (obstack, buf, strlen (buf)); | |
1304 | free (buf); | |
049f6ec9 | 1305 | } |
6894579f | 1306 | #endif /* ENABLE_SHARED_LIBGCC */ |
049f6ec9 | 1307 | |
79aff5ac MM |
1308 | /* Initialize the specs lookup routines. */ |
1309 | ||
1310 | static void | |
7e51717c | 1311 | init_spec (void) |
79aff5ac | 1312 | { |
9218435e KH |
1313 | struct spec_list *next = (struct spec_list *) 0; |
1314 | struct spec_list *sl = (struct spec_list *) 0; | |
79aff5ac MM |
1315 | int i; |
1316 | ||
1317 | if (specs) | |
3ac63d94 | 1318 | return; /* Already initialized. */ |
79aff5ac | 1319 | |
20df0482 | 1320 | if (verbose_flag) |
2dec80c7 | 1321 | fnotice (stderr, "Using built-in specs.\n"); |
20df0482 | 1322 | |
79aff5ac | 1323 | #ifdef EXTRA_SPECS |
e1e4cdc4 | 1324 | extra_specs = XCNEWVEC (struct spec_list, ARRAY_SIZE (extra_specs_1)); |
9218435e | 1325 | |
b6a1cbae | 1326 | for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--) |
03fc1620 JW |
1327 | { |
1328 | sl = &extra_specs[i]; | |
829245be KG |
1329 | sl->name = extra_specs_1[i].name; |
1330 | sl->ptr = extra_specs_1[i].ptr; | |
03fc1620 JW |
1331 | sl->next = next; |
1332 | sl->name_len = strlen (sl->name); | |
1333 | sl->ptr_spec = &sl->ptr; | |
1334 | next = sl; | |
1335 | } | |
79aff5ac MM |
1336 | #endif |
1337 | ||
b6a1cbae | 1338 | for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--) |
79aff5ac MM |
1339 | { |
1340 | sl = &static_specs[i]; | |
1341 | sl->next = next; | |
1342 | next = sl; | |
1343 | } | |
1344 | ||
328163dc | 1345 | #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC) |
9db0819e RH |
1346 | /* ??? If neither -shared-libgcc nor --static-libgcc was |
1347 | seen, then we should be making an educated guess. Some proposed | |
1348 | heuristics for ELF include: | |
1349 | ||
1350 | (1) If "-Wl,--export-dynamic", then it's a fair bet that the | |
1351 | program will be doing dynamic loading, which will likely | |
1352 | need the shared libgcc. | |
1353 | ||
1354 | (2) If "-ldl", then it's also a fair bet that we're doing | |
1355 | dynamic loading. | |
1356 | ||
1357 | (3) For each ET_DYN we're linking against (either through -lfoo | |
1358 | or /some/path/foo.so), check to see whether it or one of | |
ff7cc307 | 1359 | its dependencies depends on a shared libgcc. |
9db0819e RH |
1360 | |
1361 | (4) If "-shared" | |
1362 | ||
1363 | If the runtime is fixed to look for program headers instead | |
1364 | of calling __register_frame_info at all, for each object, | |
1365 | use the shared libgcc if any EH symbol referenced. | |
1366 | ||
1367 | If crtstuff is fixed to not invoke __register_frame_info | |
1368 | automatically, for each object, use the shared libgcc if | |
1369 | any non-empty unwind section found. | |
1370 | ||
1371 | Doing any of this probably requires invoking an external program to | |
1372 | do the actual object file scanning. */ | |
1373 | { | |
1374 | const char *p = libgcc_spec; | |
1375 | int in_sep = 1; | |
589005ff | 1376 | |
16757495 | 1377 | /* Transform the extant libgcc_spec into one that uses the shared libgcc |
9db0819e RH |
1378 | when given the proper command line arguments. */ |
1379 | while (*p) | |
1380 | { | |
589005ff | 1381 | if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0) |
9db0819e | 1382 | { |
049f6ec9 | 1383 | init_gcc_specs (&obstack, |
049f6ec9 | 1384 | "-lgcc_s" |
443728bb L |
1385 | #ifdef USE_LIBUNWIND_EXCEPTIONS |
1386 | " -lunwind" | |
4977bab6 | 1387 | #endif |
348d71c7 JW |
1388 | , |
1389 | "-lgcc", | |
1390 | "-lgcc_eh" | |
4977bab6 | 1391 | #ifdef USE_LIBUNWIND_EXCEPTIONS |
7e9d8517 | 1392 | # ifdef HAVE_LD_STATIC_DYNAMIC |
c6092243 RO |
1393 | " %{!static:" LD_STATIC_OPTION "} -lunwind" |
1394 | " %{!static:" LD_DYNAMIC_OPTION "}" | |
7e9d8517 | 1395 | # else |
4977bab6 | 1396 | " -lunwind" |
7e9d8517 | 1397 | # endif |
9db0819e | 1398 | #endif |
348d71c7 JW |
1399 | ); |
1400 | ||
ba2b7435 | 1401 | p += 5; |
9db0819e RH |
1402 | in_sep = 0; |
1403 | } | |
ba2b7435 | 1404 | else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0) |
9db0819e RH |
1405 | { |
1406 | /* Ug. We don't know shared library extensions. Hope that | |
1407 | systems that use this form don't do shared libraries. */ | |
049f6ec9 | 1408 | init_gcc_specs (&obstack, |
4e8d0554 | 1409 | "-lgcc_s", |
275b60d6 | 1410 | "libgcc.a%s", |
aedec8dd JW |
1411 | "libgcc_eh.a%s" |
1412 | #ifdef USE_LIBUNWIND_EXCEPTIONS | |
1413 | " -lunwind" | |
1414 | #endif | |
1415 | ); | |
ba2b7435 | 1416 | p += 10; |
9db0819e RH |
1417 | in_sep = 0; |
1418 | } | |
1419 | else | |
1420 | { | |
1421 | obstack_1grow (&obstack, *p); | |
1422 | in_sep = (*p == ' '); | |
1423 | p += 1; | |
1424 | } | |
1425 | } | |
1426 | ||
1427 | obstack_1grow (&obstack, '\0'); | |
7973fd2a | 1428 | libgcc_spec = XOBFINISH (&obstack, const char *); |
9db0819e RH |
1429 | } |
1430 | #endif | |
c64688ae RH |
1431 | #ifdef USE_AS_TRADITIONAL_FORMAT |
1432 | /* Prepend "--traditional-format" to whatever asm_spec we had before. */ | |
1433 | { | |
8b60264b | 1434 | static const char tf[] = "--traditional-format "; |
c64688ae RH |
1435 | obstack_grow (&obstack, tf, sizeof(tf) - 1); |
1436 | obstack_grow0 (&obstack, asm_spec, strlen (asm_spec)); | |
7973fd2a | 1437 | asm_spec = XOBFINISH (&obstack, const char *); |
c64688ae RH |
1438 | } |
1439 | #endif | |
cd533689 | 1440 | |
79bec923 ST |
1441 | #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \ |
1442 | defined LINKER_HASH_STYLE | |
cd533689 PP |
1443 | # ifdef LINK_BUILDID_SPEC |
1444 | /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */ | |
1445 | obstack_grow (&obstack, LINK_BUILDID_SPEC, sizeof(LINK_BUILDID_SPEC) - 1); | |
1446 | # endif | |
1447 | # ifdef LINK_EH_SPEC | |
275b60d6 JJ |
1448 | /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */ |
1449 | obstack_grow (&obstack, LINK_EH_SPEC, sizeof(LINK_EH_SPEC) - 1); | |
79bec923 ST |
1450 | # endif |
1451 | # ifdef LINKER_HASH_STYLE | |
1452 | /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had | |
1453 | before. */ | |
1454 | { | |
1455 | static const char hash_style[] = "--hash-style="; | |
1456 | obstack_grow (&obstack, hash_style, sizeof(hash_style) - 1); | |
1457 | obstack_grow (&obstack, LINKER_HASH_STYLE, sizeof(LINKER_HASH_STYLE) - 1); | |
1458 | obstack_1grow (&obstack, ' '); | |
1459 | } | |
cd533689 | 1460 | # endif |
275b60d6 | 1461 | obstack_grow0 (&obstack, link_spec, strlen (link_spec)); |
7973fd2a | 1462 | link_spec = XOBFINISH (&obstack, const char *); |
275b60d6 | 1463 | #endif |
9db0819e | 1464 | |
79aff5ac MM |
1465 | specs = sl; |
1466 | } | |
ed1f651b RS |
1467 | \f |
1468 | /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is | |
1469 | removed; If the spec starts with a + then SPEC is added to the end of the | |
0f41302f | 1470 | current spec. */ |
ed1f651b RS |
1471 | |
1472 | static void | |
1d088dee | 1473 | set_spec (const char *name, const char *spec) |
ed1f651b RS |
1474 | { |
1475 | struct spec_list *sl; | |
3b304f5b | 1476 | const char *old_spec; |
79aff5ac MM |
1477 | int name_len = strlen (name); |
1478 | int i; | |
1479 | ||
3ac63d94 | 1480 | /* If this is the first call, initialize the statically allocated specs. */ |
20df0482 MM |
1481 | if (!specs) |
1482 | { | |
9218435e | 1483 | struct spec_list *next = (struct spec_list *) 0; |
b6a1cbae | 1484 | for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--) |
20df0482 MM |
1485 | { |
1486 | sl = &static_specs[i]; | |
1487 | sl->next = next; | |
1488 | next = sl; | |
1489 | } | |
1490 | specs = sl; | |
1491 | } | |
1492 | ||
3ac63d94 | 1493 | /* See if the spec already exists. */ |
ed1f651b | 1494 | for (sl = specs; sl; sl = sl->next) |
79aff5ac | 1495 | if (name_len == sl->name_len && !strcmp (sl->name, name)) |
ed1f651b RS |
1496 | break; |
1497 | ||
1498 | if (!sl) | |
1499 | { | |
3ac63d94 | 1500 | /* Not found - make it. */ |
5ed6ace5 | 1501 | sl = XNEW (struct spec_list); |
ad85216e | 1502 | sl->name = xstrdup (name); |
79aff5ac MM |
1503 | sl->name_len = name_len; |
1504 | sl->ptr_spec = &sl->ptr; | |
1505 | sl->alloc_p = 0; | |
1506 | *(sl->ptr_spec) = ""; | |
ed1f651b RS |
1507 | sl->next = specs; |
1508 | specs = sl; | |
1509 | } | |
1510 | ||
79aff5ac | 1511 | old_spec = *(sl->ptr_spec); |
e51712db | 1512 | *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1])) |
d4f2852f | 1513 | ? concat (old_spec, spec + 1, NULL) |
ad85216e | 1514 | : xstrdup (spec)); |
841faeed | 1515 | |
20df0482 MM |
1516 | #ifdef DEBUG_SPECS |
1517 | if (verbose_flag) | |
2dec80c7 | 1518 | fnotice (stderr, "Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec)); |
20df0482 MM |
1519 | #endif |
1520 | ||
3ac63d94 | 1521 | /* Free the old spec. */ |
79aff5ac | 1522 | if (old_spec && sl->alloc_p) |
b1d5455a | 1523 | free (CONST_CAST(char *, old_spec)); |
79aff5ac MM |
1524 | |
1525 | sl->alloc_p = 1; | |
ed1f651b RS |
1526 | } |
1527 | \f | |
1528 | /* Accumulate a command (program name and args), and run it. */ | |
1529 | ||
5b634ee0 JM |
1530 | typedef const char *const_char_p; /* For DEF_VEC_P. */ |
1531 | DEF_VEC_P(const_char_p); | |
1532 | DEF_VEC_ALLOC_P(const_char_p,heap); | |
ed1f651b | 1533 | |
5b634ee0 | 1534 | /* Vector of pointers to arguments in the current line of specifications. */ |
ed1f651b | 1535 | |
5b634ee0 | 1536 | static VEC(const_char_p,heap) *argbuf; |
ed1f651b | 1537 | |
5b634ee0 | 1538 | /* Position in the argbuf vector containing the name of the output file |
0855eab7 CT |
1539 | (the value associated with the "-o" flag). */ |
1540 | ||
1541 | static int have_o_argbuf_index = 0; | |
1542 | ||
1b5bc8e9 | 1543 | /* Were the options -c, -S or -E passed. */ |
af41c57d AP |
1544 | static int have_c = 0; |
1545 | ||
1546 | /* Was the option -o passed. */ | |
1547 | static int have_o = 0; | |
1548 | ||
49009afd JL |
1549 | /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated |
1550 | temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for | |
1551 | it here. */ | |
fb266030 TW |
1552 | |
1553 | static struct temp_name { | |
878f32c3 | 1554 | const char *suffix; /* suffix associated with the code. */ |
fb266030 TW |
1555 | int length; /* strlen (suffix). */ |
1556 | int unique; /* Indicates whether %g or %u/%U was used. */ | |
878f32c3 | 1557 | const char *filename; /* associated filename. */ |
fb266030 TW |
1558 | int filename_length; /* strlen (filename). */ |
1559 | struct temp_name *next; | |
1560 | } *temp_names; | |
39d45901 | 1561 | |
ed1f651b RS |
1562 | /* Number of commands executed so far. */ |
1563 | ||
1564 | static int execution_count; | |
1565 | ||
3b9b4d3f RS |
1566 | /* Number of commands that exited with a signal. */ |
1567 | ||
1568 | static int signal_count; | |
ed1f651b | 1569 | \f |
f3226a90 JT |
1570 | /* Allocate the argument vector. */ |
1571 | ||
1572 | static void | |
7e51717c | 1573 | alloc_args (void) |
f3226a90 | 1574 | { |
5b634ee0 | 1575 | argbuf = VEC_alloc (const_char_p, heap, 10); |
f3226a90 JT |
1576 | } |
1577 | ||
ed1f651b RS |
1578 | /* Clear out the vector of arguments (after a command is executed). */ |
1579 | ||
1580 | static void | |
1d088dee | 1581 | clear_args (void) |
ed1f651b | 1582 | { |
5b634ee0 | 1583 | VEC_truncate (const_char_p, argbuf, 0); |
ed1f651b RS |
1584 | } |
1585 | ||
1586 | /* Add one argument to the vector at the end. | |
1587 | This is done when a space is seen or at the end of the line. | |
1588 | If DELETE_ALWAYS is nonzero, the arg is a filename | |
1589 | and the file should be deleted eventually. | |
1590 | If DELETE_FAILURE is nonzero, the arg is a filename | |
1591 | and the file should be deleted if this compilation fails. */ | |
1592 | ||
1593 | static void | |
1d088dee | 1594 | store_arg (const char *arg, int delete_always, int delete_failure) |
ed1f651b | 1595 | { |
5b634ee0 | 1596 | VEC_safe_push (const_char_p, heap, argbuf, arg); |
ed1f651b | 1597 | |
0855eab7 | 1598 | if (strcmp (arg, "-o") == 0) |
5b634ee0 | 1599 | have_o_argbuf_index = VEC_length (const_char_p, argbuf); |
ed1f651b | 1600 | if (delete_always || delete_failure) |
d6205185 RG |
1601 | { |
1602 | const char *p; | |
1603 | /* If the temporary file we should delete is specified as | |
1604 | part of a joined argument extract the filename. */ | |
1605 | if (arg[0] == '-' | |
1606 | && (p = strrchr (arg, '='))) | |
1607 | arg = p + 1; | |
1608 | record_temp_file (arg, delete_always, delete_failure); | |
1609 | } | |
ed1f651b RS |
1610 | } |
1611 | \f | |
ff7cc307 | 1612 | /* Load specs from a file name named FILENAME, replacing occurrences of |
9218435e | 1613 | various different types of line-endings, \r\n, \n\r and just \r, with |
b633b6c0 | 1614 | a single \n. */ |
20df0482 | 1615 | |
d25a45d4 | 1616 | static char * |
1d088dee | 1617 | load_specs (const char *filename) |
20df0482 MM |
1618 | { |
1619 | int desc; | |
1620 | int readlen; | |
1621 | struct stat statbuf; | |
1622 | char *buffer; | |
b633b6c0 MK |
1623 | char *buffer_p; |
1624 | char *specs; | |
1625 | char *specs_p; | |
20df0482 MM |
1626 | |
1627 | if (verbose_flag) | |
2dec80c7 | 1628 | fnotice (stderr, "Reading specs from %s\n", filename); |
20df0482 MM |
1629 | |
1630 | /* Open and stat the file. */ | |
1631 | desc = open (filename, O_RDONLY, 0); | |
1632 | if (desc < 0) | |
1633 | pfatal_with_name (filename); | |
1634 | if (stat (filename, &statbuf) < 0) | |
1635 | pfatal_with_name (filename); | |
1636 | ||
1637 | /* Read contents of file into BUFFER. */ | |
5ed6ace5 | 1638 | buffer = XNEWVEC (char, statbuf.st_size + 1); |
20df0482 MM |
1639 | readlen = read (desc, buffer, (unsigned) statbuf.st_size); |
1640 | if (readlen < 0) | |
1641 | pfatal_with_name (filename); | |
1642 | buffer[readlen] = 0; | |
1643 | close (desc); | |
1644 | ||
5ed6ace5 | 1645 | specs = XNEWVEC (char, readlen + 1); |
b633b6c0 MK |
1646 | specs_p = specs; |
1647 | for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++) | |
1648 | { | |
1649 | int skip = 0; | |
1650 | char c = *buffer_p; | |
1651 | if (c == '\r') | |
d25a45d4 KH |
1652 | { |
1653 | if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */ | |
b633b6c0 | 1654 | skip = 1; |
d25a45d4 | 1655 | else if (*(buffer_p + 1) == '\n') /* \r\n */ |
b633b6c0 MK |
1656 | skip = 1; |
1657 | else /* \r */ | |
1658 | c = '\n'; | |
1659 | } | |
1660 | if (! skip) | |
1661 | *specs_p++ = c; | |
1662 | } | |
1663 | *specs_p = '\0'; | |
1664 | ||
1665 | free (buffer); | |
1666 | return (specs); | |
1667 | } | |
1668 | ||
1669 | /* Read compilation specs from a file named FILENAME, | |
1670 | replacing the default ones. | |
1671 | ||
1672 | A suffix which starts with `*' is a definition for | |
1673 | one of the machine-specific sub-specs. The "suffix" should be | |
0fef3fd0 | 1674 | *asm, *cc1, *cpp, *link, *startfile, etc. |
b633b6c0 MK |
1675 | The corresponding spec is stored in asm_spec, etc., |
1676 | rather than in the `compilers' vector. | |
1677 | ||
1678 | Anything invalid in the file is a fatal error. */ | |
1679 | ||
1680 | static void | |
1d088dee | 1681 | read_specs (const char *filename, int main_p) |
b633b6c0 MK |
1682 | { |
1683 | char *buffer; | |
b3694847 | 1684 | char *p; |
b633b6c0 MK |
1685 | |
1686 | buffer = load_specs (filename); | |
1687 | ||
20df0482 MM |
1688 | /* Scan BUFFER for specs, putting them in the vector. */ |
1689 | p = buffer; | |
1690 | while (1) | |
1691 | { | |
1692 | char *suffix; | |
1693 | char *spec; | |
1694 | char *in, *out, *p1, *p2, *p3; | |
1695 | ||
1696 | /* Advance P in BUFFER to the next nonblank nocomment line. */ | |
1697 | p = skip_whitespace (p); | |
1698 | if (*p == 0) | |
1699 | break; | |
1700 | ||
1701 | /* Is this a special command that starts with '%'? */ | |
1702 | /* Don't allow this for the main specs file, since it would | |
1703 | encourage people to overwrite it. */ | |
1704 | if (*p == '%' && !main_p) | |
1705 | { | |
1706 | p1 = p; | |
e9a25f70 JL |
1707 | while (*p && *p != '\n') |
1708 | p++; | |
1709 | ||
d25a45d4 KH |
1710 | /* Skip '\n'. */ |
1711 | p++; | |
20df0482 | 1712 | |
d25a45d4 | 1713 | if (!strncmp (p1, "%include", sizeof ("%include") - 1) |
e9a25f70 JL |
1714 | && (p1[sizeof "%include" - 1] == ' ' |
1715 | || p1[sizeof "%include" - 1] == '\t')) | |
20df0482 MM |
1716 | { |
1717 | char *new_filename; | |
1718 | ||
1719 | p1 += sizeof ("%include"); | |
e9a25f70 JL |
1720 | while (*p1 == ' ' || *p1 == '\t') |
1721 | p1++; | |
20df0482 MM |
1722 | |
1723 | if (*p1++ != '<' || p[-2] != '>') | |
2dec80c7 JM |
1724 | fatal_error ("specs %%include syntax malformed after " |
1725 | "%ld characters", | |
1726 | (long) (p1 - buffer + 1)); | |
20df0482 MM |
1727 | |
1728 | p[-2] = '\0'; | |
00dcee0c | 1729 | new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true); |
20df0482 MM |
1730 | read_specs (new_filename ? new_filename : p1, FALSE); |
1731 | continue; | |
1732 | } | |
e9a25f70 JL |
1733 | else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1) |
1734 | && (p1[sizeof "%include_noerr" - 1] == ' ' | |
1735 | || p1[sizeof "%include_noerr" - 1] == '\t')) | |
20df0482 MM |
1736 | { |
1737 | char *new_filename; | |
1738 | ||
e9a25f70 | 1739 | p1 += sizeof "%include_noerr"; |
d25a45d4 KH |
1740 | while (*p1 == ' ' || *p1 == '\t') |
1741 | p1++; | |
20df0482 MM |
1742 | |
1743 | if (*p1++ != '<' || p[-2] != '>') | |
2dec80c7 JM |
1744 | fatal_error ("specs %%include syntax malformed after " |
1745 | "%ld characters", | |
1746 | (long) (p1 - buffer + 1)); | |
20df0482 MM |
1747 | |
1748 | p[-2] = '\0'; | |
00dcee0c | 1749 | new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true); |
20df0482 MM |
1750 | if (new_filename) |
1751 | read_specs (new_filename, FALSE); | |
1752 | else if (verbose_flag) | |
2dec80c7 | 1753 | fnotice (stderr, "could not find specs file %s\n", p1); |
20df0482 MM |
1754 | continue; |
1755 | } | |
e9a25f70 JL |
1756 | else if (!strncmp (p1, "%rename", sizeof "%rename" - 1) |
1757 | && (p1[sizeof "%rename" - 1] == ' ' | |
1758 | || p1[sizeof "%rename" - 1] == '\t')) | |
20df0482 MM |
1759 | { |
1760 | int name_len; | |
1761 | struct spec_list *sl; | |
169ce44d | 1762 | struct spec_list *newsl; |
20df0482 | 1763 | |
169ce44d | 1764 | /* Get original name. */ |
e9a25f70 JL |
1765 | p1 += sizeof "%rename"; |
1766 | while (*p1 == ' ' || *p1 == '\t') | |
1767 | p1++; | |
1768 | ||
9218435e | 1769 | if (! ISALPHA ((unsigned char) *p1)) |
2dec80c7 JM |
1770 | fatal_error ("specs %%rename syntax malformed after " |
1771 | "%ld characters", | |
1772 | (long) (p1 - buffer)); | |
20df0482 MM |
1773 | |
1774 | p2 = p1; | |
9218435e | 1775 | while (*p2 && !ISSPACE ((unsigned char) *p2)) |
e9a25f70 JL |
1776 | p2++; |
1777 | ||
20df0482 | 1778 | if (*p2 != ' ' && *p2 != '\t') |
2dec80c7 JM |
1779 | fatal_error ("specs %%rename syntax malformed after " |
1780 | "%ld characters", | |
1781 | (long) (p2 - buffer)); | |
20df0482 MM |
1782 | |
1783 | name_len = p2 - p1; | |
1784 | *p2++ = '\0'; | |
e9a25f70 JL |
1785 | while (*p2 == ' ' || *p2 == '\t') |
1786 | p2++; | |
1787 | ||
9218435e | 1788 | if (! ISALPHA ((unsigned char) *p2)) |
2dec80c7 JM |
1789 | fatal_error ("specs %%rename syntax malformed after " |
1790 | "%ld characters", | |
1791 | (long) (p2 - buffer)); | |
20df0482 | 1792 | |
d25a45d4 | 1793 | /* Get new spec name. */ |
20df0482 | 1794 | p3 = p2; |
9218435e | 1795 | while (*p3 && !ISSPACE ((unsigned char) *p3)) |
e9a25f70 JL |
1796 | p3++; |
1797 | ||
d25a45d4 | 1798 | if (p3 != p - 1) |
2dec80c7 JM |
1799 | fatal_error ("specs %%rename syntax malformed after " |
1800 | "%ld characters", | |
1801 | (long) (p3 - buffer)); | |
20df0482 MM |
1802 | *p3 = '\0'; |
1803 | ||
1804 | for (sl = specs; sl; sl = sl->next) | |
1805 | if (name_len == sl->name_len && !strcmp (sl->name, p1)) | |
1806 | break; | |
1807 | ||
1808 | if (!sl) | |
2dec80c7 | 1809 | fatal_error ("specs %s spec was not found to be renamed", p1); |
20df0482 | 1810 | |
e9a25f70 | 1811 | if (strcmp (p1, p2) == 0) |
20df0482 MM |
1812 | continue; |
1813 | ||
169ce44d NC |
1814 | for (newsl = specs; newsl; newsl = newsl->next) |
1815 | if (strcmp (newsl->name, p2) == 0) | |
bdc6b402 JM |
1816 | fatal_error ("%s: attempt to rename spec %qs to " |
1817 | "already defined spec %qs", | |
169ce44d NC |
1818 | filename, p1, p2); |
1819 | ||
20df0482 MM |
1820 | if (verbose_flag) |
1821 | { | |
2dec80c7 | 1822 | fnotice (stderr, "rename spec %s to %s\n", p1, p2); |
20df0482 | 1823 | #ifdef DEBUG_SPECS |
2dec80c7 | 1824 | fnotice (stderr, "spec is '%s'\n\n", *(sl->ptr_spec)); |
20df0482 MM |
1825 | #endif |
1826 | } | |
1827 | ||
1828 | set_spec (p2, *(sl->ptr_spec)); | |
1829 | if (sl->alloc_p) | |
b1d5455a | 1830 | free (CONST_CAST (char *, *(sl->ptr_spec))); |
20df0482 MM |
1831 | |
1832 | *(sl->ptr_spec) = ""; | |
1833 | sl->alloc_p = 0; | |
1834 | continue; | |
1835 | } | |
1836 | else | |
2dec80c7 JM |
1837 | fatal_error ("specs unknown %% command after %ld characters", |
1838 | (long) (p1 - buffer)); | |
20df0482 MM |
1839 | } |
1840 | ||
1841 | /* Find the colon that should end the suffix. */ | |
1842 | p1 = p; | |
e9a25f70 JL |
1843 | while (*p1 && *p1 != ':' && *p1 != '\n') |
1844 | p1++; | |
1845 | ||
20df0482 MM |
1846 | /* The colon shouldn't be missing. */ |
1847 | if (*p1 != ':') | |
2dec80c7 JM |
1848 | fatal_error ("specs file malformed after %ld characters", |
1849 | (long) (p1 - buffer)); | |
e9a25f70 | 1850 | |
20df0482 MM |
1851 | /* Skip back over trailing whitespace. */ |
1852 | p2 = p1; | |
e9a25f70 JL |
1853 | while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) |
1854 | p2--; | |
1855 | ||
20df0482 MM |
1856 | /* Copy the suffix to a string. */ |
1857 | suffix = save_string (p, p2 - p); | |
1858 | /* Find the next line. */ | |
1859 | p = skip_whitespace (p1 + 1); | |
1860 | if (p[1] == 0) | |
2dec80c7 JM |
1861 | fatal_error ("specs file malformed after %ld characters", |
1862 | (long) (p - buffer)); | |
e9a25f70 | 1863 | |
20df0482 | 1864 | p1 = p; |
bbeb7b65 JW |
1865 | /* Find next blank line or end of string. */ |
1866 | while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0'))) | |
e9a25f70 JL |
1867 | p1++; |
1868 | ||
20df0482 MM |
1869 | /* Specs end at the blank line and do not include the newline. */ |
1870 | spec = save_string (p, p1 - p); | |
1871 | p = p1; | |
1872 | ||
1873 | /* Delete backslash-newline sequences from the spec. */ | |
1874 | in = spec; | |
1875 | out = spec; | |
1876 | while (*in != 0) | |
1877 | { | |
1878 | if (in[0] == '\\' && in[1] == '\n') | |
1879 | in += 2; | |
1880 | else if (in[0] == '#') | |
e9a25f70 JL |
1881 | while (*in && *in != '\n') |
1882 | in++; | |
1883 | ||
20df0482 MM |
1884 | else |
1885 | *out++ = *in++; | |
1886 | } | |
1887 | *out = 0; | |
1888 | ||
1889 | if (suffix[0] == '*') | |
1890 | { | |
1891 | if (! strcmp (suffix, "*link_command")) | |
1892 | link_command_spec = spec; | |
1893 | else | |
1894 | set_spec (suffix + 1, spec); | |
1895 | } | |
1896 | else | |
1897 | { | |
1898 | /* Add this pair to the vector. */ | |
1899 | compilers | |
e1e4cdc4 | 1900 | = XRESIZEVEC (struct compiler, compilers, n_compilers + 2); |
e9a25f70 | 1901 | |
20df0482 | 1902 | compilers[n_compilers].suffix = suffix; |
ea414c97 | 1903 | compilers[n_compilers].spec = spec; |
20df0482 | 1904 | n_compilers++; |
9257393c | 1905 | memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]); |
20df0482 MM |
1906 | } |
1907 | ||
1908 | if (*suffix == 0) | |
1909 | link_command_spec = spec; | |
1910 | } | |
1911 | ||
1912 | if (link_command_spec == 0) | |
2dec80c7 | 1913 | fatal_error ("spec file has no spec for linking"); |
20df0482 MM |
1914 | } |
1915 | \f | |
ed1f651b RS |
1916 | /* Record the names of temporary files we tell compilers to write, |
1917 | and delete them at the end of the run. */ | |
1918 | ||
aa34f42c RG |
1919 | /* This is the common prefix we use to make temp file names. |
1920 | It is chosen once for each run of this program. | |
1921 | It is substituted into a spec by %g or %j. | |
1922 | Thus, all temp file names contain this prefix. | |
1923 | In practice, all temp file names start with this prefix. | |
1924 | ||
1925 | This prefix comes from the envvar TMPDIR if it is defined; | |
1926 | otherwise, from the P_tmpdir macro if that is defined; | |
1927 | otherwise, in /usr/tmp or /tmp; | |
1928 | or finally the current directory if all else fails. */ | |
1929 | ||
1930 | static const char *temp_filename; | |
1931 | ||
1932 | /* Length of the prefix. */ | |
1933 | ||
1934 | static int temp_filename_length; | |
1935 | ||
ed1f651b RS |
1936 | /* Define the list of temporary files to delete. */ |
1937 | ||
1938 | struct temp_file | |
1939 | { | |
878f32c3 | 1940 | const char *name; |
ed1f651b RS |
1941 | struct temp_file *next; |
1942 | }; | |
1943 | ||
1944 | /* Queue of files to delete on success or failure of compilation. */ | |
1945 | static struct temp_file *always_delete_queue; | |
1946 | /* Queue of files to delete on failure of compilation. */ | |
1947 | static struct temp_file *failure_delete_queue; | |
1948 | ||
1949 | /* Record FILENAME as a file to be deleted automatically. | |
1950 | ALWAYS_DELETE nonzero means delete it if all compilation succeeds; | |
1951 | otherwise delete it in any case. | |
1952 | FAIL_DELETE nonzero means delete it if a compilation step fails; | |
1953 | otherwise delete it in any case. */ | |
1954 | ||
d991c721 | 1955 | void |
1d088dee | 1956 | record_temp_file (const char *filename, int always_delete, int fail_delete) |
ed1f651b | 1957 | { |
b3694847 | 1958 | char *const name = xstrdup (filename); |
ed1f651b RS |
1959 | |
1960 | if (always_delete) | |
1961 | { | |
b3694847 | 1962 | struct temp_file *temp; |
ed1f651b | 1963 | for (temp = always_delete_queue; temp; temp = temp->next) |
ba78087b | 1964 | if (! filename_cmp (name, temp->name)) |
ed1f651b | 1965 | goto already1; |
e9a25f70 | 1966 | |
5ed6ace5 | 1967 | temp = XNEW (struct temp_file); |
ed1f651b RS |
1968 | temp->next = always_delete_queue; |
1969 | temp->name = name; | |
1970 | always_delete_queue = temp; | |
e9a25f70 | 1971 | |
ed1f651b RS |
1972 | already1:; |
1973 | } | |
1974 | ||
1975 | if (fail_delete) | |
1976 | { | |
b3694847 | 1977 | struct temp_file *temp; |
ed1f651b | 1978 | for (temp = failure_delete_queue; temp; temp = temp->next) |
ba78087b | 1979 | if (! filename_cmp (name, temp->name)) |
ed1f651b | 1980 | goto already2; |
e9a25f70 | 1981 | |
5ed6ace5 | 1982 | temp = XNEW (struct temp_file); |
ed1f651b RS |
1983 | temp->next = failure_delete_queue; |
1984 | temp->name = name; | |
1985 | failure_delete_queue = temp; | |
e9a25f70 | 1986 | |
ed1f651b RS |
1987 | already2:; |
1988 | } | |
1989 | } | |
1990 | ||
1991 | /* Delete all the temporary files whose names we previously recorded. */ | |
1992 | ||
8fd58397 DR |
1993 | #ifndef DELETE_IF_ORDINARY |
1994 | #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \ | |
1995 | do \ | |
1996 | { \ | |
1997 | if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \ | |
1998 | if (unlink (NAME) < 0) \ | |
1999 | if (VERBOSE_FLAG) \ | |
2000 | perror_with_name (NAME); \ | |
2001 | } while (0) | |
2002 | #endif | |
2003 | ||
d5ea2ac4 | 2004 | static void |
1d088dee | 2005 | delete_if_ordinary (const char *name) |
d5ea2ac4 RK |
2006 | { |
2007 | struct stat st; | |
2008 | #ifdef DEBUG | |
2009 | int i, c; | |
2010 | ||
2011 | printf ("Delete %s? (y or n) ", name); | |
2012 | fflush (stdout); | |
2013 | i = getchar (); | |
2014 | if (i != '\n') | |
e9a25f70 JL |
2015 | while ((c = getchar ()) != '\n' && c != EOF) |
2016 | ; | |
2017 | ||
d5ea2ac4 RK |
2018 | if (i == 'y' || i == 'Y') |
2019 | #endif /* DEBUG */ | |
8fd58397 | 2020 | DELETE_IF_ORDINARY (name, st, verbose_flag); |
d5ea2ac4 RK |
2021 | } |
2022 | ||
ed1f651b | 2023 | static void |
1d088dee | 2024 | delete_temp_files (void) |
ed1f651b | 2025 | { |
b3694847 | 2026 | struct temp_file *temp; |
ed1f651b RS |
2027 | |
2028 | for (temp = always_delete_queue; temp; temp = temp->next) | |
d5ea2ac4 | 2029 | delete_if_ordinary (temp->name); |
ed1f651b RS |
2030 | always_delete_queue = 0; |
2031 | } | |
2032 | ||
2033 | /* Delete all the files to be deleted on error. */ | |
2034 | ||
2035 | static void | |
1d088dee | 2036 | delete_failure_queue (void) |
ed1f651b | 2037 | { |
b3694847 | 2038 | struct temp_file *temp; |
ed1f651b RS |
2039 | |
2040 | for (temp = failure_delete_queue; temp; temp = temp->next) | |
d5ea2ac4 | 2041 | delete_if_ordinary (temp->name); |
ed1f651b RS |
2042 | } |
2043 | ||
2044 | static void | |
1d088dee | 2045 | clear_failure_queue (void) |
ed1f651b RS |
2046 | { |
2047 | failure_delete_queue = 0; | |
2048 | } | |
b3865ca9 | 2049 | \f |
00dcee0c AM |
2050 | /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK |
2051 | returns non-NULL. | |
2052 | If DO_MULTI is true iterate over the paths twice, first with multilib | |
2053 | suffix then without, otherwise iterate over the paths once without | |
2054 | adding a multilib suffix. When DO_MULTI is true, some attempt is made | |
2055 | to avoid visiting the same path twice, but we could do better. For | |
2056 | instance, /usr/lib/../lib is considered different from /usr/lib. | |
2057 | At least EXTRA_SPACE chars past the end of the path passed to | |
2058 | CALLBACK are available for use by the callback. | |
2059 | CALLBACK_INFO allows extra parameters to be passed to CALLBACK. | |
2060 | ||
2061 | Returns the value returned by CALLBACK. */ | |
2062 | ||
2063 | static void * | |
2064 | for_each_path (const struct path_prefix *paths, | |
2065 | bool do_multi, | |
2066 | size_t extra_space, | |
2067 | void *(*callback) (char *, void *), | |
2068 | void *callback_info) | |
b3865ca9 | 2069 | { |
00dcee0c AM |
2070 | struct prefix_list *pl; |
2071 | const char *multi_dir = NULL; | |
2072 | const char *multi_os_dir = NULL; | |
2073 | const char *multi_suffix; | |
2074 | const char *just_multi_suffix; | |
2075 | char *path = NULL; | |
2076 | void *ret = NULL; | |
2077 | bool skip_multi_dir = false; | |
2078 | bool skip_multi_os_dir = false; | |
2079 | ||
2080 | multi_suffix = machine_suffix; | |
2081 | just_multi_suffix = just_machine_suffix; | |
2082 | if (do_multi && multilib_dir && strcmp (multilib_dir, ".") != 0) | |
b3865ca9 | 2083 | { |
00dcee0c AM |
2084 | multi_dir = concat (multilib_dir, dir_separator_str, NULL); |
2085 | multi_suffix = concat (multi_suffix, multi_dir, NULL); | |
2086 | just_multi_suffix = concat (just_multi_suffix, multi_dir, NULL); | |
2087 | } | |
2088 | if (do_multi && multilib_os_dir && strcmp (multilib_os_dir, ".") != 0) | |
2089 | multi_os_dir = concat (multilib_os_dir, dir_separator_str, NULL); | |
b3865ca9 | 2090 | |
00dcee0c AM |
2091 | while (1) |
2092 | { | |
2093 | size_t multi_dir_len = 0; | |
2094 | size_t multi_os_dir_len = 0; | |
2095 | size_t suffix_len; | |
2096 | size_t just_suffix_len; | |
2097 | size_t len; | |
2098 | ||
2099 | if (multi_dir) | |
2100 | multi_dir_len = strlen (multi_dir); | |
2101 | if (multi_os_dir) | |
2102 | multi_os_dir_len = strlen (multi_os_dir); | |
2103 | suffix_len = strlen (multi_suffix); | |
2104 | just_suffix_len = strlen (just_multi_suffix); | |
2105 | ||
2106 | if (path == NULL) | |
b3865ca9 | 2107 | { |
00dcee0c AM |
2108 | len = paths->max_len + extra_space + 1; |
2109 | if (suffix_len > multi_os_dir_len) | |
2110 | len += suffix_len; | |
2111 | else | |
2112 | len += multi_os_dir_len; | |
5ed6ace5 | 2113 | path = XNEWVEC (char, len); |
b3865ca9 RS |
2114 | } |
2115 | ||
00dcee0c | 2116 | for (pl = paths->plist; pl != 0; pl = pl->next) |
ae04227b | 2117 | { |
00dcee0c AM |
2118 | len = strlen (pl->prefix); |
2119 | memcpy (path, pl->prefix, len); | |
9218435e | 2120 | |
00dcee0c AM |
2121 | /* Look first in MACHINE/VERSION subdirectory. */ |
2122 | if (!skip_multi_dir) | |
2123 | { | |
2124 | memcpy (path + len, multi_suffix, suffix_len + 1); | |
2125 | ret = callback (path, callback_info); | |
2126 | if (ret) | |
2127 | break; | |
2128 | } | |
2129 | ||
2130 | /* Some paths are tried with just the machine (ie. target) | |
2131 | subdir. This is used for finding as, ld, etc. */ | |
2132 | if (!skip_multi_dir | |
2133 | && pl->require_machine_suffix == 2) | |
2134 | { | |
2135 | memcpy (path + len, just_multi_suffix, just_suffix_len + 1); | |
2136 | ret = callback (path, callback_info); | |
2137 | if (ret) | |
2138 | break; | |
2139 | } | |
2140 | ||
2141 | /* Now try the base path. */ | |
2142 | if (!pl->require_machine_suffix | |
2143 | && !(pl->os_multilib ? skip_multi_os_dir : skip_multi_dir)) | |
2144 | { | |
2145 | const char *this_multi; | |
2146 | size_t this_multi_len; | |
2147 | ||
2148 | if (pl->os_multilib) | |
2149 | { | |
2150 | this_multi = multi_os_dir; | |
2151 | this_multi_len = multi_os_dir_len; | |
2152 | } | |
2153 | else | |
2154 | { | |
2155 | this_multi = multi_dir; | |
2156 | this_multi_len = multi_dir_len; | |
2157 | } | |
2158 | ||
2159 | if (this_multi_len) | |
2160 | memcpy (path + len, this_multi, this_multi_len + 1); | |
2161 | else | |
2162 | path[len] = '\0'; | |
2163 | ||
2164 | ret = callback (path, callback_info); | |
2165 | if (ret) | |
2166 | break; | |
2167 | } | |
ae04227b | 2168 | } |
00dcee0c AM |
2169 | if (pl) |
2170 | break; | |
ae04227b | 2171 | |
00dcee0c AM |
2172 | if (multi_dir == NULL && multi_os_dir == NULL) |
2173 | break; | |
b3865ca9 | 2174 | |
00dcee0c AM |
2175 | /* Run through the paths again, this time without multilibs. |
2176 | Don't repeat any we have already seen. */ | |
2177 | if (multi_dir) | |
2178 | { | |
b1d5455a | 2179 | free (CONST_CAST (char *, multi_dir)); |
00dcee0c | 2180 | multi_dir = NULL; |
b1d5455a | 2181 | free (CONST_CAST (char *, multi_suffix)); |
00dcee0c | 2182 | multi_suffix = machine_suffix; |
b1d5455a | 2183 | free (CONST_CAST (char *, just_multi_suffix)); |
00dcee0c | 2184 | just_multi_suffix = just_machine_suffix; |
b3865ca9 | 2185 | } |
00dcee0c AM |
2186 | else |
2187 | skip_multi_dir = true; | |
2188 | if (multi_os_dir) | |
2189 | { | |
b1d5455a | 2190 | free (CONST_CAST (char *, multi_os_dir)); |
00dcee0c AM |
2191 | multi_os_dir = NULL; |
2192 | } | |
2193 | else | |
2194 | skip_multi_os_dir = true; | |
2195 | } | |
2196 | ||
2197 | if (multi_dir) | |
2198 | { | |
b1d5455a KG |
2199 | free (CONST_CAST (char *, multi_dir)); |
2200 | free (CONST_CAST (char *, multi_suffix)); | |
2201 | free (CONST_CAST (char *, just_multi_suffix)); | |
b3865ca9 | 2202 | } |
00dcee0c | 2203 | if (multi_os_dir) |
b1d5455a | 2204 | free (CONST_CAST (char *, multi_os_dir)); |
00dcee0c AM |
2205 | if (ret != path) |
2206 | free (path); | |
2207 | return ret; | |
2208 | } | |
2209 | ||
2210 | /* Callback for build_search_list. Adds path to obstack being built. */ | |
2211 | ||
2212 | struct add_to_obstack_info { | |
2213 | struct obstack *ob; | |
2214 | bool check_dir; | |
2215 | bool first_time; | |
2216 | }; | |
2217 | ||
2218 | static void * | |
2219 | add_to_obstack (char *path, void *data) | |
2220 | { | |
e1e4cdc4 | 2221 | struct add_to_obstack_info *info = (struct add_to_obstack_info *) data; |
00dcee0c AM |
2222 | |
2223 | if (info->check_dir && !is_directory (path, false)) | |
2224 | return NULL; | |
2225 | ||
2226 | if (!info->first_time) | |
2227 | obstack_1grow (info->ob, PATH_SEPARATOR); | |
2228 | ||
2229 | obstack_grow (info->ob, path, strlen (path)); | |
2230 | ||
2231 | info->first_time = false; | |
2232 | return NULL; | |
2233 | } | |
2234 | ||
47d33318 FXC |
2235 | /* Add or change the value of an environment variable, outputting the |
2236 | change to standard error if in verbose mode. */ | |
2237 | static void | |
e9c15f6e | 2238 | xputenv (const char *string) |
47d33318 FXC |
2239 | { |
2240 | if (verbose_flag) | |
2dec80c7 | 2241 | fnotice (stderr, "%s\n", string); |
e9c15f6e | 2242 | putenv (CONST_CAST (char *, string)); |
47d33318 FXC |
2243 | } |
2244 | ||
00dcee0c AM |
2245 | /* Build a list of search directories from PATHS. |
2246 | PREFIX is a string to prepend to the list. | |
2247 | If CHECK_DIR_P is true we ensure the directory exists. | |
2248 | If DO_MULTI is true, multilib paths are output first, then | |
2249 | non-multilib paths. | |
2250 | This is used mostly by putenv_from_prefixes so we use `collect_obstack'. | |
2251 | It is also used by the --print-search-dirs flag. */ | |
2252 | ||
2253 | static char * | |
2254 | build_search_list (const struct path_prefix *paths, const char *prefix, | |
2255 | bool check_dir, bool do_multi) | |
2256 | { | |
2257 | struct add_to_obstack_info info; | |
2258 | ||
2259 | info.ob = &collect_obstack; | |
2260 | info.check_dir = check_dir; | |
2261 | info.first_time = true; | |
2262 | ||
2263 | obstack_grow (&collect_obstack, prefix, strlen (prefix)); | |
2264 | obstack_1grow (&collect_obstack, '='); | |
2265 | ||
2266 | for_each_path (paths, do_multi, 0, add_to_obstack, &info); | |
e9a25f70 | 2267 | |
3ae7de4e | 2268 | obstack_1grow (&collect_obstack, '\0'); |
7973fd2a | 2269 | return XOBFINISH (&collect_obstack, char *); |
b3865ca9 RS |
2270 | } |
2271 | ||
0f41302f MS |
2272 | /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables |
2273 | for collect. */ | |
2628b9d3 DE |
2274 | |
2275 | static void | |
00dcee0c AM |
2276 | putenv_from_prefixes (const struct path_prefix *paths, const char *env_var, |
2277 | bool do_multi) | |
2628b9d3 | 2278 | { |
47d33318 | 2279 | xputenv (build_search_list (paths, env_var, true, do_multi)); |
2628b9d3 | 2280 | } |
ed1f651b | 2281 | \f |
ca606201 ILT |
2282 | /* Check whether NAME can be accessed in MODE. This is like access, |
2283 | except that it never considers directories to be executable. */ | |
2284 | ||
2285 | static int | |
1d088dee | 2286 | access_check (const char *name, int mode) |
ca606201 ILT |
2287 | { |
2288 | if (mode == X_OK) | |
2289 | { | |
2290 | struct stat st; | |
2291 | ||
2292 | if (stat (name, &st) < 0 | |
2293 | || S_ISDIR (st.st_mode)) | |
2294 | return -1; | |
2295 | } | |
2296 | ||
2297 | return access (name, mode); | |
2298 | } | |
2299 | ||
00dcee0c AM |
2300 | /* Callback for find_a_file. Appends the file name to the directory |
2301 | path. If the resulting file exists in the right mode, return the | |
2302 | full pathname to the file. */ | |
2303 | ||
2304 | struct file_at_path_info { | |
2305 | const char *name; | |
2306 | const char *suffix; | |
2307 | int name_len; | |
2308 | int suffix_len; | |
2309 | int mode; | |
2310 | }; | |
2311 | ||
2312 | static void * | |
2313 | file_at_path (char *path, void *data) | |
2314 | { | |
e1e4cdc4 | 2315 | struct file_at_path_info *info = (struct file_at_path_info *) data; |
00dcee0c AM |
2316 | size_t len = strlen (path); |
2317 | ||
2318 | memcpy (path + len, info->name, info->name_len); | |
2319 | len += info->name_len; | |
2320 | ||
2321 | /* Some systems have a suffix for executable files. | |
2322 | So try appending that first. */ | |
2323 | if (info->suffix_len) | |
2324 | { | |
2325 | memcpy (path + len, info->suffix, info->suffix_len + 1); | |
2326 | if (access_check (path, info->mode) == 0) | |
2327 | return path; | |
2328 | } | |
2329 | ||
2330 | path[len] = '\0'; | |
2331 | if (access_check (path, info->mode) == 0) | |
2332 | return path; | |
2333 | ||
2334 | return NULL; | |
2335 | } | |
2336 | ||
ed1f651b | 2337 | /* Search for NAME using the prefix list PREFIXES. MODE is passed to |
00dcee0c AM |
2338 | access to check permissions. If DO_MULTI is true, search multilib |
2339 | paths then non-multilib paths, otherwise do not search multilib paths. | |
0f41302f | 2340 | Return 0 if not found, otherwise return its name, allocated with malloc. */ |
ed1f651b RS |
2341 | |
2342 | static char * | |
00dcee0c AM |
2343 | find_a_file (const struct path_prefix *pprefix, const char *name, int mode, |
2344 | bool do_multi) | |
ed1f651b | 2345 | { |
00dcee0c | 2346 | struct file_at_path_info info; |
ed1f651b | 2347 | |
ab339d62 | 2348 | #ifdef DEFAULT_ASSEMBLER |
c5c0b3d9 | 2349 | if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0) |
ad85216e | 2350 | return xstrdup (DEFAULT_ASSEMBLER); |
ab339d62 AO |
2351 | #endif |
2352 | ||
2353 | #ifdef DEFAULT_LINKER | |
ad85216e KG |
2354 | if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0) |
2355 | return xstrdup (DEFAULT_LINKER); | |
ab339d62 AO |
2356 | #endif |
2357 | ||
ed1f651b RS |
2358 | /* Determine the filename to execute (special case for absolute paths). */ |
2359 | ||
3dce1408 | 2360 | if (IS_ABSOLUTE_PATH (name)) |
ed1f651b | 2361 | { |
ab339d62 | 2362 | if (access (name, mode) == 0) |
00dcee0c | 2363 | return xstrdup (name); |
460dcab4 | 2364 | |
00dcee0c AM |
2365 | return NULL; |
2366 | } | |
460dcab4 | 2367 | |
00dcee0c AM |
2368 | info.name = name; |
2369 | info.suffix = (mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : ""; | |
2370 | info.name_len = strlen (info.name); | |
2371 | info.suffix_len = strlen (info.suffix); | |
2372 | info.mode = mode; | |
ed1f651b | 2373 | |
e1e4cdc4 KG |
2374 | return (char*) for_each_path (pprefix, do_multi, |
2375 | info.name_len + info.suffix_len, | |
2376 | file_at_path, &info); | |
ed1f651b RS |
2377 | } |
2378 | ||
922a4beb | 2379 | /* Ranking of prefixes in the sort list. -B prefixes are put before |
9218435e | 2380 | all others. */ |
922a4beb AC |
2381 | |
2382 | enum path_prefix_priority | |
2383 | { | |
2384 | PREFIX_PRIORITY_B_OPT, | |
2385 | PREFIX_PRIORITY_LAST | |
2386 | }; | |
2387 | ||
fbe5a4a6 | 2388 | /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending |
922a4beb AC |
2389 | order according to PRIORITY. Within each PRIORITY, new entries are |
2390 | appended. | |
ed1f651b RS |
2391 | |
2392 | If WARN is nonzero, we will warn if no file is found | |
2393 | through this prefix. WARN should point to an int | |
ae04227b CH |
2394 | which will be set to 1 if this entry is used. |
2395 | ||
e9a25f70 JL |
2396 | COMPONENT is the value to be passed to update_path. |
2397 | ||
ae04227b CH |
2398 | REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without |
2399 | the complete value of machine_suffix. | |
2400 | 2 means try both machine_suffix and just_machine_suffix. */ | |
ed1f651b RS |
2401 | |
2402 | static void | |
1d088dee AJ |
2403 | add_prefix (struct path_prefix *pprefix, const char *prefix, |
2404 | const char *component, /* enum prefix_priority */ int priority, | |
1a5d37a1 | 2405 | int require_machine_suffix, int os_multilib) |
ed1f651b RS |
2406 | { |
2407 | struct prefix_list *pl, **prev; | |
2408 | int len; | |
2409 | ||
922a4beb AC |
2410 | for (prev = &pprefix->plist; |
2411 | (*prev) != NULL && (*prev)->priority <= priority; | |
2412 | prev = &(*prev)->next) | |
2413 | ; | |
ed1f651b | 2414 | |
f9da5064 | 2415 | /* Keep track of the longest prefix. */ |
ed1f651b | 2416 | |
e9a25f70 | 2417 | prefix = update_path (prefix, component); |
ed1f651b RS |
2418 | len = strlen (prefix); |
2419 | if (len > pprefix->max_len) | |
2420 | pprefix->max_len = len; | |
2421 | ||
5ed6ace5 | 2422 | pl = XNEW (struct prefix_list); |
51c04256 | 2423 | pl->prefix = prefix; |
ed1f651b | 2424 | pl->require_machine_suffix = require_machine_suffix; |
922a4beb | 2425 | pl->priority = priority; |
5bbcd587 | 2426 | pl->os_multilib = os_multilib; |
ed1f651b | 2427 | |
f9da5064 | 2428 | /* Insert after PREV. */ |
922a4beb AC |
2429 | pl->next = (*prev); |
2430 | (*prev) = pl; | |
ed1f651b | 2431 | } |
4977bab6 ZW |
2432 | |
2433 | /* Same as add_prefix, but prepending target_system_root to prefix. */ | |
f4c0a303 | 2434 | /* The target_system_root prefix has been relocated by gcc_exec_prefix. */ |
4977bab6 | 2435 | static void |
1d088dee AJ |
2436 | add_sysrooted_prefix (struct path_prefix *pprefix, const char *prefix, |
2437 | const char *component, | |
2438 | /* enum prefix_priority */ int priority, | |
1a5d37a1 | 2439 | int require_machine_suffix, int os_multilib) |
4977bab6 | 2440 | { |
3dce1408 | 2441 | if (!IS_ABSOLUTE_PATH (prefix)) |
bdc6b402 | 2442 | fatal_error ("system path %qs is not absolute", prefix); |
4977bab6 ZW |
2443 | |
2444 | if (target_system_root) | |
2445 | { | |
e7f13528 GP |
2446 | if (target_sysroot_suffix) |
2447 | prefix = concat (target_sysroot_suffix, prefix, NULL); | |
4977bab6 | 2448 | prefix = concat (target_system_root, prefix, NULL); |
e7f13528 | 2449 | |
4977bab6 ZW |
2450 | /* We have to override this because GCC's notion of sysroot |
2451 | moves along with GCC. */ | |
2452 | component = "GCC"; | |
2453 | } | |
2454 | ||
2455 | add_prefix (pprefix, prefix, component, priority, | |
1a5d37a1 | 2456 | require_machine_suffix, os_multilib); |
4977bab6 | 2457 | } |
ed1f651b RS |
2458 | \f |
2459 | /* Execute the command specified by the arguments on the current line of spec. | |
2460 | When using pipes, this includes several piped-together commands | |
2461 | with `|' between them. | |
2462 | ||
2463 | Return 0 if successful, -1 if failed. */ | |
2464 | ||
2465 | static int | |
1d088dee | 2466 | execute (void) |
ed1f651b RS |
2467 | { |
2468 | int i; | |
2469 | int n_commands; /* # of command. */ | |
2470 | char *string; | |
054e88a8 | 2471 | struct pex_obj *pex; |
ed1f651b | 2472 | struct command |
d25a45d4 KH |
2473 | { |
2474 | const char *prog; /* program name. */ | |
2475 | const char **argv; /* vector of args. */ | |
d25a45d4 | 2476 | }; |
5b634ee0 | 2477 | const char *arg; |
ed1f651b RS |
2478 | |
2479 | struct command *commands; /* each command buffer with above info. */ | |
2480 | ||
3b5edfee | 2481 | gcc_assert (!processing_spec_function); |
f3226a90 | 2482 | |
fe7df9c4 SP |
2483 | if (wrapper_string) |
2484 | { | |
5b634ee0 JM |
2485 | string = find_a_file (&exec_prefixes, |
2486 | VEC_index (const_char_p, argbuf, 0), X_OK, false); | |
2487 | if (string) | |
2488 | VEC_replace (const_char_p, argbuf, 0, string); | |
fe7df9c4 SP |
2489 | insert_wrapper (wrapper_string); |
2490 | } | |
2491 | ||
ed1f651b | 2492 | /* Count # of piped commands. */ |
5b634ee0 JM |
2493 | for (n_commands = 1, i = 0; VEC_iterate (const_char_p, argbuf, i, arg); i++) |
2494 | if (strcmp (arg, "|") == 0) | |
ed1f651b RS |
2495 | n_commands++; |
2496 | ||
2497 | /* Get storage for each command. */ | |
e1e4cdc4 | 2498 | commands = (struct command *) alloca (n_commands * sizeof (struct command)); |
ed1f651b RS |
2499 | |
2500 | /* Split argbuf into its separate piped processes, | |
2501 | and record info about each one. | |
2502 | Also search for the programs that are to be run. */ | |
2503 | ||
5b634ee0 JM |
2504 | VEC_safe_push (const_char_p, heap, argbuf, 0); |
2505 | ||
2506 | commands[0].prog = VEC_index (const_char_p, argbuf, 0); /* first command. */ | |
2507 | commands[0].argv = VEC_address (const_char_p, argbuf); | |
b8698a0f | 2508 | |
fe7df9c4 SP |
2509 | if (!wrapper_string) |
2510 | { | |
2511 | string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, false); | |
2512 | commands[0].argv[0] = (string) ? string : commands[0].argv[0]; | |
2513 | } | |
ed1f651b | 2514 | |
5b634ee0 JM |
2515 | for (n_commands = 1, i = 0; VEC_iterate (const_char_p, argbuf, i, arg); i++) |
2516 | if (arg && strcmp (arg, "|") == 0) | |
ed1f651b | 2517 | { /* each command. */ |
6405c0ec | 2518 | #if defined (__MSDOS__) || defined (OS2) || defined (VMS) |
2dec80c7 | 2519 | fatal_error ("-pipe not supported"); |
ed1f651b | 2520 | #endif |
5b634ee0 JM |
2521 | VEC_replace (const_char_p, argbuf, i, 0); /* Termination of |
2522 | command args. */ | |
2523 | commands[n_commands].prog = VEC_index (const_char_p, argbuf, i + 1); | |
2524 | commands[n_commands].argv | |
2525 | = &(VEC_address (const_char_p, argbuf))[i + 1]; | |
5bbcd587 | 2526 | string = find_a_file (&exec_prefixes, commands[n_commands].prog, |
00dcee0c | 2527 | X_OK, false); |
ed1f651b RS |
2528 | if (string) |
2529 | commands[n_commands].argv[0] = string; | |
2530 | n_commands++; | |
2531 | } | |
2532 | ||
ed1f651b RS |
2533 | /* If -v, print what we are about to do, and maybe query. */ |
2534 | ||
b3865ca9 | 2535 | if (verbose_flag) |
ed1f651b | 2536 | { |
b8468bc7 NC |
2537 | /* For help listings, put a blank line between sub-processes. */ |
2538 | if (print_help_list) | |
2539 | fputc ('\n', stderr); | |
9218435e | 2540 | |
ed1f651b | 2541 | /* Print each piped command as a separate line. */ |
d25a45d4 | 2542 | for (i = 0; i < n_commands; i++) |
ed1f651b | 2543 | { |
37620334 | 2544 | const char *const *j; |
ed1f651b | 2545 | |
589005ff KH |
2546 | if (verbose_only_flag) |
2547 | { | |
99f78cdd IR |
2548 | for (j = commands[i].argv; *j; j++) |
2549 | { | |
88f92c0f | 2550 | const char *p; |
99f78cdd | 2551 | for (p = *j; *p; ++p) |
09b201fc JJ |
2552 | if (!ISALNUM ((unsigned char) *p) |
2553 | && *p != '_' && *p != '/' && *p != '-' && *p != '.') | |
2554 | break; | |
2555 | if (*p || !*j) | |
99f78cdd | 2556 | { |
09b201fc JJ |
2557 | fprintf (stderr, " \""); |
2558 | for (p = *j; *p; ++p) | |
2559 | { | |
2560 | if (*p == '"' || *p == '\\' || *p == '$') | |
2561 | fputc ('\\', stderr); | |
2562 | fputc (*p, stderr); | |
2563 | } | |
2564 | fputc ('"', stderr); | |
99f78cdd | 2565 | } |
7fcf46f5 JZ |
2566 | /* If it's empty, print "". */ |
2567 | else if (!**j) | |
2568 | fprintf (stderr, " \"\""); | |
09b201fc JJ |
2569 | else |
2570 | fprintf (stderr, " %s", *j); | |
99f78cdd | 2571 | } |
589005ff KH |
2572 | } |
2573 | else | |
99f78cdd | 2574 | for (j = commands[i].argv; *j; j++) |
7fcf46f5 JZ |
2575 | /* If it's empty, print "". */ |
2576 | if (!**j) | |
2577 | fprintf (stderr, " \"\""); | |
2578 | else | |
2579 | fprintf (stderr, " %s", *j); | |
ed1f651b RS |
2580 | |
2581 | /* Print a pipe symbol after all but the last command. */ | |
2582 | if (i + 1 != n_commands) | |
2583 | fprintf (stderr, " |"); | |
2584 | fprintf (stderr, "\n"); | |
2585 | } | |
2586 | fflush (stderr); | |
99f78cdd | 2587 | if (verbose_only_flag != 0) |
6a40fb21 AP |
2588 | { |
2589 | /* verbose_only_flag should act as if the spec was | |
2590 | executed, so increment execution_count before | |
ba228239 | 2591 | returning. This prevents spurious warnings about |
6a40fb21 AP |
2592 | unused linker input files, etc. */ |
2593 | execution_count++; | |
2594 | return 0; | |
2595 | } | |
ed1f651b | 2596 | #ifdef DEBUG |
2dec80c7 | 2597 | fnotice (stderr, "\nGo ahead? (y or n) "); |
ed1f651b RS |
2598 | fflush (stderr); |
2599 | i = getchar (); | |
2600 | if (i != '\n') | |
e9a25f70 JL |
2601 | while (getchar () != '\n') |
2602 | ; | |
2603 | ||
ed1f651b RS |
2604 | if (i != 'y' && i != 'Y') |
2605 | return 0; | |
2606 | #endif /* DEBUG */ | |
2607 | } | |
2608 | ||
414d23ae | 2609 | #ifdef ENABLE_VALGRIND_CHECKING |
fbe5a4a6 | 2610 | /* Run the each command through valgrind. To simplify prepending the |
414d23ae HPN |
2611 | path to valgrind and the option "-q" (for quiet operation unless |
2612 | something triggers), we allocate a separate argv array. */ | |
2613 | ||
2614 | for (i = 0; i < n_commands; i++) | |
2615 | { | |
2616 | const char **argv; | |
2617 | int argc; | |
2618 | int j; | |
2619 | ||
2620 | for (argc = 0; commands[i].argv[argc] != NULL; argc++) | |
2621 | ; | |
2622 | ||
63ab5b8c | 2623 | argv = XALLOCAVEC (const char *, argc + 3); |
414d23ae HPN |
2624 | |
2625 | argv[0] = VALGRIND_PATH; | |
2626 | argv[1] = "-q"; | |
2627 | for (j = 2; j < argc + 2; j++) | |
2628 | argv[j] = commands[i].argv[j - 2]; | |
2629 | argv[j] = NULL; | |
2630 | ||
2631 | commands[i].argv = argv; | |
2632 | commands[i].prog = argv[0]; | |
2633 | } | |
2634 | #endif | |
2635 | ||
ed1f651b RS |
2636 | /* Run each piped subprocess. */ |
2637 | ||
bdde878c AO |
2638 | pex = pex_init (PEX_USE_PIPES | ((report_times || report_times_to_file) |
2639 | ? PEX_RECORD_TIMES : 0), | |
6afbc885 | 2640 | progname, temp_filename); |
054e88a8 | 2641 | if (pex == NULL) |
bdc6b402 | 2642 | fatal_error ("pex_init failed: %m"); |
054e88a8 | 2643 | |
ed1f651b RS |
2644 | for (i = 0; i < n_commands; i++) |
2645 | { | |
054e88a8 ILT |
2646 | const char *errmsg; |
2647 | int err; | |
fbd40359 | 2648 | const char *string = commands[i].argv[0]; |
ed1f651b | 2649 | |
054e88a8 ILT |
2650 | errmsg = pex_run (pex, |
2651 | ((i + 1 == n_commands ? PEX_LAST : 0) | |
2652 | | (string == commands[i].prog ? PEX_SEARCH : 0)), | |
b1d5455a | 2653 | string, CONST_CAST (char **, commands[i].argv), |
054e88a8 ILT |
2654 | NULL, NULL, &err); |
2655 | if (errmsg != NULL) | |
2656 | { | |
2657 | if (err == 0) | |
2dec80c7 | 2658 | fatal_error (errmsg); |
054e88a8 ILT |
2659 | else |
2660 | { | |
2661 | errno = err; | |
2662 | pfatal_with_name (errmsg); | |
2663 | } | |
2664 | } | |
ed1f651b RS |
2665 | |
2666 | if (string != commands[i].prog) | |
b1d5455a | 2667 | free (CONST_CAST (char *, string)); |
ed1f651b RS |
2668 | } |
2669 | ||
2670 | execution_count++; | |
2671 | ||
054e88a8 | 2672 | /* Wait for all the subprocesses to finish. */ |
ed1f651b RS |
2673 | |
2674 | { | |
054e88a8 ILT |
2675 | int *statuses; |
2676 | struct pex_time *times = NULL; | |
ed1f651b RS |
2677 | int ret_code = 0; |
2678 | ||
e1e4cdc4 | 2679 | statuses = (int *) alloca (n_commands * sizeof (int)); |
054e88a8 | 2680 | if (!pex_get_status (pex, n_commands, statuses)) |
bdc6b402 | 2681 | fatal_error ("failed to get exit status: %m"); |
054e88a8 | 2682 | |
bdde878c | 2683 | if (report_times || report_times_to_file) |
ed1f651b | 2684 | { |
e1e4cdc4 | 2685 | times = (struct pex_time *) alloca (n_commands * sizeof (struct pex_time)); |
054e88a8 | 2686 | if (!pex_get_times (pex, n_commands, times)) |
bdc6b402 | 2687 | fatal_error ("failed to get process times: %m"); |
054e88a8 | 2688 | } |
ed1f651b | 2689 | |
054e88a8 | 2690 | pex_free (pex); |
ed1f651b | 2691 | |
054e88a8 ILT |
2692 | for (i = 0; i < n_commands; ++i) |
2693 | { | |
2694 | int status = statuses[i]; | |
03c41c05 | 2695 | |
054e88a8 ILT |
2696 | if (WIFSIGNALED (status)) |
2697 | { | |
c334349b | 2698 | #ifdef SIGPIPE |
054e88a8 ILT |
2699 | /* SIGPIPE is a special case. It happens in -pipe mode |
2700 | when the compiler dies before the preprocessor is done, | |
2701 | or the assembler dies before the compiler is done. | |
2702 | There's generally been an error already, and this is | |
2703 | just fallout. So don't generate another error unless | |
2704 | we would otherwise have succeeded. */ | |
2705 | if (WTERMSIG (status) == SIGPIPE | |
2706 | && (signal_count || greatest_status >= MIN_FATAL_STATUS)) | |
eeac616e VR |
2707 | { |
2708 | signal_count++; | |
2709 | ret_code = -1; | |
2710 | } | |
054e88a8 ILT |
2711 | else |
2712 | #endif | |
6afbc885 JM |
2713 | internal_error ("%s (program %s)", |
2714 | strsignal (WTERMSIG (status)), commands[i].prog); | |
054e88a8 ILT |
2715 | } |
2716 | else if (WIFEXITED (status) | |
2717 | && WEXITSTATUS (status) >= MIN_FATAL_STATUS) | |
2718 | { | |
2719 | if (WEXITSTATUS (status) > greatest_status) | |
2720 | greatest_status = WEXITSTATUS (status); | |
2721 | ret_code = -1; | |
2722 | } | |
2723 | ||
bdde878c | 2724 | if (report_times || report_times_to_file) |
054e88a8 ILT |
2725 | { |
2726 | struct pex_time *pt = ×[i]; | |
2727 | double ut, st; | |
2728 | ||
2729 | ut = ((double) pt->user_seconds | |
2730 | + (double) pt->user_microseconds / 1.0e6); | |
2731 | st = ((double) pt->system_seconds | |
2732 | + (double) pt->system_microseconds / 1.0e6); | |
2733 | ||
2734 | if (ut + st != 0) | |
bdde878c AO |
2735 | { |
2736 | if (report_times) | |
2dec80c7 JM |
2737 | fnotice (stderr, "# %s %.2f %.2f\n", |
2738 | commands[i].prog, ut, st); | |
bdde878c AO |
2739 | |
2740 | if (report_times_to_file) | |
2741 | { | |
2742 | int c = 0; | |
2743 | const char *const *j; | |
2744 | ||
2745 | fprintf (report_times_to_file, "%g %g", ut, st); | |
2746 | ||
2747 | for (j = &commands[i].prog; *j; j = &commands[i].argv[++c]) | |
2748 | { | |
2749 | const char *p; | |
2750 | for (p = *j; *p; ++p) | |
2751 | if (*p == '"' || *p == '\\' || *p == '$' | |
2752 | || ISSPACE (*p)) | |
2753 | break; | |
2754 | ||
2755 | if (*p) | |
2756 | { | |
2757 | fprintf (report_times_to_file, " \""); | |
2758 | for (p = *j; *p; ++p) | |
2759 | { | |
2760 | if (*p == '"' || *p == '\\' || *p == '$') | |
2761 | fputc ('\\', report_times_to_file); | |
2762 | fputc (*p, report_times_to_file); | |
2763 | } | |
2764 | fputc ('"', report_times_to_file); | |
2765 | } | |
2766 | else | |
2767 | fprintf (report_times_to_file, " %s", *j); | |
2768 | } | |
2769 | ||
2770 | fputc ('\n', report_times_to_file); | |
2771 | } | |
2772 | } | |
054e88a8 | 2773 | } |
ed1f651b | 2774 | } |
054e88a8 | 2775 | |
ed1f651b RS |
2776 | return ret_code; |
2777 | } | |
2778 | } | |
2779 | \f | |
2780 | /* Find all the switches given to us | |
2781 | and make a vector describing them. | |
2782 | The elements of the vector are strings, one per switch given. | |
2783 | If a switch uses following arguments, then the `part1' field | |
2784 | is the switch itself and the `args' field | |
2785 | is a null-terminated vector containing the following arguments. | |
3371362c L |
2786 | Bits in the `live_cond' field are: |
2787 | SWITCH_LIVE to indicate this switch is true in a conditional spec. | |
2788 | SWITCH_FALSE to indicate this switch is overridden by a later switch. | |
2789 | SWITCH_IGNORE to indicate this switch should be ignored (used in %<S). | |
94b90527 JJ |
2790 | SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored |
2791 | in all do_spec calls afterwards. Used for %<S from self specs. | |
ab87f8c8 | 2792 | The `validated' field is nonzero if any spec has looked at this switch; |
ed1f651b RS |
2793 | if it remains zero at the end of the run, it must be meaningless. */ |
2794 | ||
96f5b137 L |
2795 | #define SWITCH_LIVE (1 << 0) |
2796 | #define SWITCH_FALSE (1 << 1) | |
2797 | #define SWITCH_IGNORE (1 << 2) | |
2798 | #define SWITCH_IGNORE_PERMANENTLY (1 << 3) | |
2799 | #define SWITCH_KEEP_FOR_GCC (1 << 4) | |
8097c429 | 2800 | |
ed1f651b RS |
2801 | struct switchstr |
2802 | { | |
878f32c3 | 2803 | const char *part1; |
fbd40359 | 2804 | const char **args; |
3371362c | 2805 | unsigned int live_cond; |
196a37f4 NB |
2806 | unsigned char validated; |
2807 | unsigned char ordering; | |
ed1f651b RS |
2808 | }; |
2809 | ||
2810 | static struct switchstr *switches; | |
2811 | ||
2812 | static int n_switches; | |
2813 | ||
922e1882 JM |
2814 | static int n_switches_alloc; |
2815 | ||
2153915d AO |
2816 | /* Set to zero if -fcompare-debug is disabled, positive if it's |
2817 | enabled and we're running the first compilation, negative if it's | |
2818 | enabled and we're running the second compilation. For most of the | |
2819 | time, it's in the range -1..1, but it can be temporarily set to 2 | |
2820 | or 3 to indicate that the -fcompare-debug flags didn't come from | |
2821 | the command-line, but rather from the GCC_COMPARE_DEBUG environment | |
2822 | variable, until a synthesized -fcompare-debug flag is added to the | |
2823 | command line. */ | |
2824 | int compare_debug; | |
2825 | ||
2826 | /* Set to nonzero if we've seen the -fcompare-debug-second flag. */ | |
2827 | int compare_debug_second; | |
2828 | ||
2829 | /* Set to the flags that should be passed to the second compilation in | |
2830 | a -fcompare-debug compilation. */ | |
2831 | const char *compare_debug_opt; | |
2832 | ||
2833 | static struct switchstr *switches_debug_check[2]; | |
2834 | ||
2835 | static int n_switches_debug_check[2]; | |
2836 | ||
efe5e5a0 JM |
2837 | static int n_switches_alloc_debug_check[2]; |
2838 | ||
2153915d AO |
2839 | static char *debug_check_temp_file[2]; |
2840 | ||
817a8255 EC |
2841 | /* Language is one of three things: |
2842 | ||
2843 | 1) The name of a real programming language. | |
2844 | 2) NULL, indicating that no one has figured out | |
2845 | what it is yet. | |
2846 | 3) '*', indicating that the file should be passed | |
2847 | to the linker. */ | |
ed1f651b RS |
2848 | struct infile |
2849 | { | |
878f32c3 KG |
2850 | const char *name; |
2851 | const char *language; | |
0855eab7 CT |
2852 | struct compiler *incompiler; |
2853 | bool compiled; | |
2854 | bool preprocessed; | |
ed1f651b RS |
2855 | }; |
2856 | ||
2857 | /* Also a vector of input files specified. */ | |
2858 | ||
2859 | static struct infile *infiles; | |
2860 | ||
3a5a9edc | 2861 | int n_infiles; |
ed1f651b | 2862 | |
922e1882 JM |
2863 | static int n_infiles_alloc; |
2864 | ||
d1bd0ded GK |
2865 | /* True if multiple input files are being compiled to a single |
2866 | assembly file. */ | |
2867 | ||
2868 | static bool combine_inputs; | |
2869 | ||
08dc830e | 2870 | /* This counts the number of libraries added by lang_specific_driver, so that |
a2a05b0a JW |
2871 | we can tell if there were any user supplied any files or libraries. */ |
2872 | ||
2873 | static int added_libraries; | |
2874 | ||
ed1f651b RS |
2875 | /* And a vector of corresponding output files is made up later. */ |
2876 | ||
3a5a9edc | 2877 | const char **outfiles; |
853e0b2d | 2878 | \f |
45936a85 | 2879 | #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX) |
853e0b2d RK |
2880 | |
2881 | /* Convert NAME to a new name if it is the standard suffix. DO_EXE | |
a9657ce8 DR |
2882 | is true if we should look for an executable suffix. DO_OBJ |
2883 | is true if we should look for an object suffix. */ | |
853e0b2d | 2884 | |
40cdfca6 | 2885 | static const char * |
1d088dee AJ |
2886 | convert_filename (const char *name, int do_exe ATTRIBUTE_UNUSED, |
2887 | int do_obj ATTRIBUTE_UNUSED) | |
853e0b2d | 2888 | { |
40cdfca6 | 2889 | #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) |
853e0b2d | 2890 | int i; |
40cdfca6 | 2891 | #endif |
87e690e2 MK |
2892 | int len; |
2893 | ||
2894 | if (name == NULL) | |
2895 | return NULL; | |
9218435e | 2896 | |
87e690e2 | 2897 | len = strlen (name); |
853e0b2d | 2898 | |
45936a85 DD |
2899 | #ifdef HAVE_TARGET_OBJECT_SUFFIX |
2900 | /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */ | |
a9657ce8 | 2901 | if (do_obj && len > 2 |
853e0b2d RK |
2902 | && name[len - 2] == '.' |
2903 | && name[len - 1] == 'o') | |
2904 | { | |
bdc5ed93 | 2905 | obstack_grow (&obstack, name, len - 2); |
45936a85 | 2906 | obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX)); |
7973fd2a | 2907 | name = XOBFINISH (&obstack, const char *); |
853e0b2d RK |
2908 | } |
2909 | #endif | |
2910 | ||
45936a85 | 2911 | #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) |
853e0b2d RK |
2912 | /* If there is no filetype, make it the executable suffix (which includes |
2913 | the "."). But don't get confused if we have just "-o". */ | |
45936a85 | 2914 | if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-')) |
853e0b2d RK |
2915 | return name; |
2916 | ||
e0040a8e | 2917 | for (i = len - 1; i >= 0; i--) |
509781a4 | 2918 | if (IS_DIR_SEPARATOR (name[i])) |
e0040a8e RK |
2919 | break; |
2920 | ||
2921 | for (i++; i < len; i++) | |
853e0b2d RK |
2922 | if (name[i] == '.') |
2923 | return name; | |
2924 | ||
2925 | obstack_grow (&obstack, name, len); | |
5d9669fd RK |
2926 | obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX, |
2927 | strlen (TARGET_EXECUTABLE_SUFFIX)); | |
7973fd2a | 2928 | name = XOBFINISH (&obstack, const char *); |
853e0b2d RK |
2929 | #endif |
2930 | ||
2931 | return name; | |
2932 | } | |
2933 | #endif | |
b8468bc7 NC |
2934 | \f |
2935 | /* Display the command line switches accepted by gcc. */ | |
2936 | static void | |
1d088dee | 2937 | display_help (void) |
b8468bc7 | 2938 | { |
6afbc885 | 2939 | printf (_("Usage: %s [options] file...\n"), progname); |
5e4adfba | 2940 | fputs (_("Options:\n"), stdout); |
b8468bc7 | 2941 | |
5e4adfba PT |
2942 | fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout); |
2943 | fputs (_(" --help Display this information\n"), stdout); | |
91606ce2 | 2944 | fputs (_(" --target-help Display target specific command line options\n"), stdout); |
0631b69f | 2945 | fputs (_(" --help={target|optimizers|warnings|params|[^]{joined|separate|undocumented}}[,...]\n"), stdout); |
c662432e | 2946 | fputs (_(" Display specific types of command line options\n"), stdout); |
b8468bc7 | 2947 | if (! verbose_flag) |
5e4adfba | 2948 | fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout); |
1156c176 | 2949 | fputs (_(" --version Display compiler version information\n"), stdout); |
5e4adfba PT |
2950 | fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout); |
2951 | fputs (_(" -dumpversion Display the version of the compiler\n"), stdout); | |
2952 | fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout); | |
2953 | fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout); | |
2954 | fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout); | |
2955 | fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout); | |
2956 | fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout); | |
2957 | fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout); | |
2958 | fputs (_("\ | |
2959 | -print-multi-lib Display the mapping between command line options and\n\ | |
2960 | multiple library search directories\n"), stdout); | |
5bbcd587 | 2961 | fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout); |
3def1397 | 2962 | fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout); |
14da6073 | 2963 | fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout); |
5e4adfba PT |
2964 | fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout); |
2965 | fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout); | |
2966 | fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout); | |
4977bab6 ZW |
2967 | fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout); |
2968 | fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout); | |
5e4adfba PT |
2969 | fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout); |
2970 | fputs (_(" -save-temps Do not delete intermediate files\n"), stdout); | |
14fdc613 | 2971 | fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout); |
ba0c638e SB |
2972 | fputs (_("\ |
2973 | -no-canonical-prefixes Do not canonicalize paths when building relative\n\ | |
2974 | prefixes to other gcc components\n"), stdout); | |
5e4adfba PT |
2975 | fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout); |
2976 | fputs (_(" -time Time the execution of each subprocess\n"), stdout); | |
b0287a90 | 2977 | fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout); |
5e4adfba | 2978 | fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout); |
160633c6 MM |
2979 | fputs (_("\ |
2980 | --sysroot=<directory> Use <directory> as the root directory for headers\n\ | |
b3cccd58 | 2981 | and libraries\n"), stdout); |
5e4adfba | 2982 | fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout); |
5e4adfba | 2983 | fputs (_(" -v Display the programs invoked by the compiler\n"), stdout); |
99f78cdd | 2984 | fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout); |
5e4adfba PT |
2985 | fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout); |
2986 | fputs (_(" -S Compile only; do not assemble or link\n"), stdout); | |
2987 | fputs (_(" -c Compile and assemble, but do not link\n"), stdout); | |
2988 | fputs (_(" -o <file> Place the output into <file>\n"), stdout); | |
2989 | fputs (_("\ | |
2990 | -x <language> Specify the language of the following input files\n\ | |
8e854b76 | 2991 | Permissible languages include: c c++ assembler none\n\ |
1737c953 | 2992 | 'none' means revert to the default behavior of\n\ |
5e4adfba PT |
2993 | guessing the language based on the file's extension\n\ |
2994 | "), stdout); | |
2995 | ||
0c386769 | 2996 | printf (_("\ |
d991c721 BK |
2997 | \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\ |
2998 | passed on to the various sub-processes invoked by %s. In order to pass\n\ | |
2999 | other options on to these processes the -W<letter> options must be used.\n\ | |
6afbc885 | 3000 | "), progname); |
b8468bc7 NC |
3001 | |
3002 | /* The rest of the options are displayed by invocations of the various | |
3003 | sub-processes. */ | |
3004 | } | |
3005 | ||
9218435e | 3006 | static void |
1d088dee | 3007 | add_preprocessor_option (const char *option, int len) |
9218435e | 3008 | { |
69d540bd NF |
3009 | VEC_safe_push (char_p, heap, preprocessor_options, |
3010 | save_string (option, len)); | |
40f943dd | 3011 | } |
9218435e KH |
3012 | |
3013 | static void | |
1d088dee | 3014 | add_assembler_option (const char *option, int len) |
878f32c3 | 3015 | { |
69d540bd | 3016 | VEC_safe_push (char_p, heap, assembler_options, save_string (option, len)); |
b8468bc7 | 3017 | } |
9218435e KH |
3018 | |
3019 | static void | |
1d088dee | 3020 | add_linker_option (const char *option, int len) |
878f32c3 | 3021 | { |
69d540bd | 3022 | VEC_safe_push (char_p, heap, linker_options, save_string (option, len)); |
40f943dd | 3023 | } |
853e0b2d | 3024 | \f |
922e1882 JM |
3025 | /* Allocate space for an input file in infiles. */ |
3026 | ||
3027 | static void | |
3028 | alloc_infile (void) | |
3029 | { | |
3030 | if (n_infiles_alloc == 0) | |
3031 | { | |
3032 | n_infiles_alloc = 16; | |
3033 | infiles = XNEWVEC (struct infile, n_infiles_alloc); | |
3034 | } | |
3035 | else if (n_infiles_alloc == n_infiles) | |
3036 | { | |
3037 | n_infiles_alloc *= 2; | |
3038 | infiles = XRESIZEVEC (struct infile, infiles, n_infiles_alloc); | |
3039 | } | |
3040 | } | |
3041 | ||
3042 | /* Store an input file with the given NAME and LANGUAGE in | |
3043 | infiles. */ | |
3044 | ||
3045 | static void | |
3046 | add_infile (const char *name, const char *language) | |
3047 | { | |
3048 | alloc_infile (); | |
3049 | infiles[n_infiles].name = name; | |
3050 | infiles[n_infiles++].language = language; | |
3051 | } | |
3052 | ||
3053 | /* Allocate space for a switch in switches. */ | |
3054 | ||
3055 | static void | |
3056 | alloc_switch (void) | |
3057 | { | |
3058 | if (n_switches_alloc == 0) | |
3059 | { | |
3060 | n_switches_alloc = 16; | |
3061 | switches = XNEWVEC (struct switchstr, n_switches_alloc); | |
3062 | } | |
3063 | else if (n_switches_alloc == n_switches) | |
3064 | { | |
3065 | n_switches_alloc *= 2; | |
3066 | switches = XRESIZEVEC (struct switchstr, switches, n_switches_alloc); | |
3067 | } | |
3068 | } | |
3069 | ||
603349bf JM |
3070 | /* Save an option OPT with N_ARGS arguments in array ARGS, marking it |
3071 | as validated if VALIDATED. */ | |
3072 | ||
3073 | static void | |
3074 | save_switch (const char *opt, size_t n_args, const char *const *args, | |
3075 | bool validated) | |
3076 | { | |
3077 | alloc_switch (); | |
3078 | switches[n_switches].part1 = opt + 1; | |
3079 | if (n_args == 0) | |
3080 | switches[n_switches].args = 0; | |
3081 | else | |
3082 | { | |
3083 | switches[n_switches].args = XNEWVEC (const char *, n_args + 1); | |
3084 | memcpy (switches[n_switches].args, args, n_args * sizeof (const char *)); | |
3085 | switches[n_switches].args[n_args] = NULL; | |
3086 | } | |
3087 | ||
3088 | switches[n_switches].live_cond = 0; | |
3089 | switches[n_switches].validated = validated; | |
3090 | switches[n_switches].ordering = 0; | |
3091 | n_switches++; | |
3092 | } | |
3093 | ||
3094 | /* Handle an option DECODED that is unknown to the option-processing | |
66017846 | 3095 | machinery. */ |
603349bf JM |
3096 | |
3097 | static bool | |
3098 | driver_unknown_option_callback (const struct cl_decoded_option *decoded) | |
3099 | { | |
66017846 JM |
3100 | const char *opt = decoded->arg; |
3101 | if (opt[1] == 'W' && opt[2] == 'n' && opt[3] == 'o' && opt[4] == '-' | |
3102 | && !(decoded->errors & CL_ERR_NEGATIVE)) | |
3103 | { | |
3104 | /* Leave unknown -Wno-* options for the compiler proper, to be | |
3105 | diagnosed only if there are warnings. */ | |
3106 | save_switch (decoded->canonical_option[0], | |
3107 | decoded->canonical_option_num_elements - 1, | |
3108 | &decoded->canonical_option[1], false); | |
3109 | return false; | |
3110 | } | |
3111 | else | |
3112 | return true; | |
603349bf JM |
3113 | } |
3114 | ||
3115 | /* Handle an option DECODED that is not marked as CL_DRIVER. | |
3116 | LANG_MASK will always be CL_DRIVER. */ | |
3117 | ||
3118 | static void | |
3119 | driver_wrong_lang_callback (const struct cl_decoded_option *decoded, | |
3120 | unsigned int lang_mask ATTRIBUTE_UNUSED) | |
3121 | { | |
3122 | /* At this point, non-driver options are accepted (and expected to | |
3123 | be passed down by specs) unless marked to be rejected by the | |
3124 | driver. Options to be rejected by the driver but accepted by the | |
3125 | compilers proper are treated just like completely unknown | |
3126 | options. */ | |
3127 | const struct cl_option *option = &cl_options[decoded->opt_index]; | |
3128 | ||
300d83d9 | 3129 | if (option->cl_reject_driver) |
603349bf JM |
3130 | error ("unrecognized command line option %qs", |
3131 | decoded->orig_option_with_args_text); | |
3132 | else | |
66017846 JM |
3133 | save_switch (decoded->canonical_option[0], |
3134 | decoded->canonical_option_num_elements - 1, | |
3135 | &decoded->canonical_option[1], false); | |
603349bf JM |
3136 | } |
3137 | ||
3138 | /* Note that an option (index OPT_INDEX, argument ARG, value VALUE) | |
3139 | has been successfully handled with a handler for mask MASK. */ | |
3140 | ||
3141 | static void | |
3142 | driver_post_handling_callback (const struct cl_decoded_option *decoded ATTRIBUTE_UNUSED, | |
3143 | unsigned int mask ATTRIBUTE_UNUSED) | |
3144 | { | |
3145 | /* Nothing to do here. */ | |
3146 | } | |
3147 | ||
3148 | static const char *spec_lang = 0; | |
3149 | static int last_language_n_infiles; | |
3150 | ||
3151 | /* Handle a driver option; arguments and return value as for | |
3152 | handle_option. */ | |
3153 | ||
3154 | static bool | |
46625112 | 3155 | driver_handle_option (struct gcc_options *opts, |
d4d24ba4 | 3156 | struct gcc_options *opts_set, |
46625112 | 3157 | const struct cl_decoded_option *decoded, |
603349bf | 3158 | unsigned int lang_mask ATTRIBUTE_UNUSED, int kind, |
a4d8c676 | 3159 | location_t loc, |
d5478783 JM |
3160 | const struct cl_option_handlers *handlers ATTRIBUTE_UNUSED, |
3161 | diagnostic_context *dc) | |
603349bf JM |
3162 | { |
3163 | size_t opt_index = decoded->opt_index; | |
3164 | const char *arg = decoded->arg; | |
3165 | const char *compare_debug_replacement_opt; | |
3166 | int value = decoded->value; | |
3167 | bool validated = false; | |
3168 | bool do_save = true; | |
3169 | ||
46625112 | 3170 | gcc_assert (opts == &global_options); |
d4d24ba4 | 3171 | gcc_assert (opts_set == &global_options_set); |
603349bf | 3172 | gcc_assert (kind == DK_UNSPECIFIED); |
a4d8c676 | 3173 | gcc_assert (loc == UNKNOWN_LOCATION); |
d5478783 | 3174 | gcc_assert (dc == global_dc); |
603349bf JM |
3175 | |
3176 | switch (opt_index) | |
3177 | { | |
3178 | case OPT_dumpspecs: | |
3179 | { | |
3180 | struct spec_list *sl; | |
3181 | init_spec (); | |
3182 | for (sl = specs; sl; sl = sl->next) | |
3183 | printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec)); | |
3184 | if (link_command_spec) | |
3185 | printf ("*link_command:\n%s\n\n", link_command_spec); | |
3186 | exit (0); | |
3187 | } | |
3188 | ||
3189 | case OPT_dumpversion: | |
3190 | printf ("%s\n", spec_version); | |
3191 | exit (0); | |
3192 | ||
3193 | case OPT_dumpmachine: | |
3194 | printf ("%s\n", spec_machine); | |
3195 | exit (0); | |
3196 | ||
e200444e | 3197 | case OPT__version: |
603349bf JM |
3198 | print_version = 1; |
3199 | ||
3200 | /* CPP driver cannot obtain switch from cc1_options. */ | |
3201 | if (is_cpp_driver) | |
3202 | add_preprocessor_option ("--version", strlen ("--version")); | |
3203 | add_assembler_option ("--version", strlen ("--version")); | |
3204 | add_linker_option ("--version", strlen ("--version")); | |
3205 | break; | |
3206 | ||
e200444e | 3207 | case OPT__help: |
603349bf JM |
3208 | print_help_list = 1; |
3209 | ||
3210 | /* CPP driver cannot obtain switch from cc1_options. */ | |
3211 | if (is_cpp_driver) | |
3212 | add_preprocessor_option ("--help", 6); | |
3213 | add_assembler_option ("--help", 6); | |
3214 | add_linker_option ("--help", 6); | |
3215 | break; | |
3216 | ||
e200444e | 3217 | case OPT__help_: |
603349bf JM |
3218 | print_subprocess_help = 2; |
3219 | break; | |
3220 | ||
e200444e | 3221 | case OPT__target_help: |
603349bf JM |
3222 | print_subprocess_help = 1; |
3223 | ||
3224 | /* CPP driver cannot obtain switch from cc1_options. */ | |
3225 | if (is_cpp_driver) | |
3226 | add_preprocessor_option ("--target-help", 13); | |
3227 | add_assembler_option ("--target-help", 13); | |
3228 | add_linker_option ("--target-help", 13); | |
3229 | break; | |
3230 | ||
3231 | case OPT_pass_exit_codes: | |
3232 | case OPT_print_search_dirs: | |
3233 | case OPT_print_file_name_: | |
3234 | case OPT_print_prog_name_: | |
3235 | case OPT_print_multi_lib: | |
3236 | case OPT_print_multi_directory: | |
3237 | case OPT_print_sysroot: | |
3238 | case OPT_print_multi_os_directory: | |
3239 | case OPT_print_sysroot_headers_suffix: | |
3240 | case OPT_time: | |
3241 | case OPT_wrapper: | |
3242 | /* These options set the variables specified in common.opt | |
3243 | automatically, and do not need to be saved for spec | |
3244 | processing. */ | |
3245 | do_save = false; | |
3246 | break; | |
3247 | ||
3248 | case OPT_print_libgcc_file_name: | |
3249 | print_file_name = "libgcc.a"; | |
3250 | do_save = false; | |
3251 | break; | |
3252 | ||
3253 | case OPT_fcompare_debug_second: | |
3254 | compare_debug_second = 1; | |
3255 | break; | |
3256 | ||
3257 | case OPT_fcompare_debug: | |
3258 | switch (value) | |
3259 | { | |
3260 | case 0: | |
3261 | compare_debug_replacement_opt = "-fcompare-debug="; | |
3262 | arg = ""; | |
3263 | goto compare_debug_with_arg; | |
3264 | ||
3265 | case 1: | |
3266 | compare_debug_replacement_opt = "-fcompare-debug=-gtoggle"; | |
3267 | arg = "-gtoggle"; | |
3268 | goto compare_debug_with_arg; | |
3269 | ||
3270 | default: | |
3271 | gcc_unreachable (); | |
3272 | } | |
3273 | break; | |
3274 | ||
3275 | case OPT_fcompare_debug_: | |
3276 | compare_debug_replacement_opt = decoded->canonical_option[0]; | |
3277 | compare_debug_with_arg: | |
3278 | gcc_assert (decoded->canonical_option_num_elements == 1); | |
3279 | gcc_assert (arg != NULL); | |
28c14a04 | 3280 | if (*arg) |
603349bf JM |
3281 | compare_debug = 1; |
3282 | else | |
3283 | compare_debug = -1; | |
3284 | if (compare_debug < 0) | |
3285 | compare_debug_opt = NULL; | |
3286 | else | |
3287 | compare_debug_opt = arg; | |
3288 | save_switch (compare_debug_replacement_opt, 0, NULL, validated); | |
3289 | return true; | |
3290 | ||
3291 | case OPT_Wa_: | |
3292 | { | |
3293 | int prev, j; | |
3294 | /* Pass the rest of this option to the assembler. */ | |
3295 | ||
3296 | /* Split the argument at commas. */ | |
3297 | prev = 0; | |
3298 | for (j = 0; arg[j]; j++) | |
3299 | if (arg[j] == ',') | |
3300 | { | |
3301 | add_assembler_option (arg + prev, j - prev); | |
3302 | prev = j + 1; | |
3303 | } | |
3304 | ||
3305 | /* Record the part after the last comma. */ | |
3306 | add_assembler_option (arg + prev, j - prev); | |
3307 | } | |
3308 | do_save = false; | |
3309 | break; | |
3310 | ||
3311 | case OPT_Wp_: | |
3312 | { | |
3313 | int prev, j; | |
3314 | /* Pass the rest of this option to the preprocessor. */ | |
3315 | ||
3316 | /* Split the argument at commas. */ | |
3317 | prev = 0; | |
3318 | for (j = 0; arg[j]; j++) | |
3319 | if (arg[j] == ',') | |
3320 | { | |
3321 | add_preprocessor_option (arg + prev, j - prev); | |
3322 | prev = j + 1; | |
3323 | } | |
3324 | ||
3325 | /* Record the part after the last comma. */ | |
3326 | add_preprocessor_option (arg + prev, j - prev); | |
3327 | } | |
3328 | do_save = false; | |
3329 | break; | |
3330 | ||
3331 | case OPT_Wl_: | |
3332 | { | |
3333 | int prev, j; | |
3334 | /* Split the argument at commas. */ | |
3335 | prev = 0; | |
3336 | for (j = 0; arg[j]; j++) | |
3337 | if (arg[j] == ',') | |
3338 | { | |
3339 | add_infile (save_string (arg + prev, j - prev), "*"); | |
3340 | prev = j + 1; | |
3341 | } | |
3342 | /* Record the part after the last comma. */ | |
3343 | add_infile (arg + prev, "*"); | |
3344 | } | |
3345 | do_save = false; | |
3346 | break; | |
3347 | ||
3348 | case OPT_Xlinker: | |
3349 | add_infile (arg, "*"); | |
3350 | do_save = false; | |
3351 | break; | |
3352 | ||
3353 | case OPT_Xpreprocessor: | |
3354 | add_preprocessor_option (arg, strlen (arg)); | |
3355 | do_save = false; | |
3356 | break; | |
3357 | ||
3358 | case OPT_Xassembler: | |
3359 | add_assembler_option (arg, strlen (arg)); | |
3360 | do_save = false; | |
3361 | break; | |
3362 | ||
3363 | case OPT_l: | |
3364 | /* POSIX allows separation of -l and the lib arg; canonicalize | |
3365 | by concatenating -l with its arg */ | |
3366 | add_infile (concat ("-l", arg, NULL), "*"); | |
3367 | do_save = false; | |
3368 | break; | |
3369 | ||
5de8299c JM |
3370 | case OPT_L: |
3371 | /* Similarly, canonicalize -L for linkers that may not accept | |
3372 | separate arguments. */ | |
3373 | save_switch (concat ("-L", arg, NULL), 0, NULL, validated); | |
3374 | return true; | |
3375 | ||
a350a6c8 IS |
3376 | case OPT_F: |
3377 | /* Likewise -F. */ | |
3378 | save_switch (concat ("-F", arg, NULL), 0, NULL, validated); | |
3379 | return true; | |
3380 | ||
603349bf JM |
3381 | case OPT_save_temps: |
3382 | save_temps_flag = SAVE_TEMPS_CWD; | |
3383 | validated = true; | |
3384 | break; | |
3385 | ||
3386 | case OPT_save_temps_: | |
3387 | if (strcmp (arg, "cwd") == 0) | |
3388 | save_temps_flag = SAVE_TEMPS_CWD; | |
3389 | else if (strcmp (arg, "obj") == 0 | |
3390 | || strcmp (arg, "object") == 0) | |
3391 | save_temps_flag = SAVE_TEMPS_OBJ; | |
3392 | else | |
3393 | fatal_error ("%qs is an unknown -save-temps option", | |
3394 | decoded->orig_option_with_args_text); | |
3395 | break; | |
3396 | ||
3397 | case OPT_no_canonical_prefixes: | |
3398 | /* Already handled as a special case, so ignored here. */ | |
3399 | do_save = false; | |
3400 | break; | |
3401 | ||
3402 | case OPT_pipe: | |
3403 | validated = true; | |
603349bf JM |
3404 | /* These options set the variables specified in common.opt |
3405 | automatically, but do need to be saved for spec | |
3406 | processing. */ | |
3407 | break; | |
3408 | ||
603349bf JM |
3409 | case OPT_specs_: |
3410 | { | |
3411 | struct user_specs *user = XNEW (struct user_specs); | |
3412 | ||
3413 | user->next = (struct user_specs *) 0; | |
3414 | user->filename = arg; | |
3415 | if (user_specs_tail) | |
3416 | user_specs_tail->next = user; | |
3417 | else | |
3418 | user_specs_head = user; | |
3419 | user_specs_tail = user; | |
3420 | } | |
3421 | do_save = false; | |
3422 | break; | |
3423 | ||
3424 | case OPT__sysroot_: | |
3425 | target_system_root = arg; | |
3426 | target_system_root_changed = 1; | |
3427 | do_save = false; | |
3428 | break; | |
3429 | ||
3430 | case OPT_time_: | |
3431 | if (report_times_to_file) | |
3432 | fclose (report_times_to_file); | |
3433 | report_times_to_file = fopen (arg, "a"); | |
3434 | do_save = false; | |
3435 | break; | |
3436 | ||
3437 | case OPT____: | |
3438 | /* "-###" | |
3439 | This is similar to -v except that there is no execution | |
3440 | of the commands and the echoed arguments are quoted. It | |
3441 | is intended for use in shell scripts to capture the | |
3442 | driver-generated command line. */ | |
3443 | verbose_only_flag++; | |
d5478783 | 3444 | verbose_flag = 1; |
603349bf JM |
3445 | do_save = false; |
3446 | break; | |
3447 | ||
3448 | case OPT_B: | |
3449 | { | |
3450 | size_t len = strlen (arg); | |
3451 | ||
3452 | /* Catch the case where the user has forgotten to append a | |
3453 | directory separator to the path. Note, they may be using | |
3454 | -B to add an executable name prefix, eg "i386-elf-", in | |
3455 | order to distinguish between multiple installations of | |
3456 | GCC in the same directory. Hence we must check to see | |
3457 | if appending a directory separator actually makes a | |
3458 | valid directory name. */ | |
3459 | if (!IS_DIR_SEPARATOR (arg[len - 1]) | |
3460 | && is_directory (arg, false)) | |
3461 | { | |
3462 | char *tmp = XNEWVEC (char, len + 2); | |
3463 | strcpy (tmp, arg); | |
3464 | tmp[len] = DIR_SEPARATOR; | |
3465 | tmp[++len] = 0; | |
3466 | arg = tmp; | |
3467 | } | |
3468 | ||
3469 | add_prefix (&exec_prefixes, arg, NULL, | |
3470 | PREFIX_PRIORITY_B_OPT, 0, 0); | |
3471 | add_prefix (&startfile_prefixes, arg, NULL, | |
3472 | PREFIX_PRIORITY_B_OPT, 0, 0); | |
3473 | add_prefix (&include_prefixes, arg, NULL, | |
3474 | PREFIX_PRIORITY_B_OPT, 0, 0); | |
3475 | } | |
3476 | validated = true; | |
3477 | break; | |
3478 | ||
603349bf JM |
3479 | case OPT_x: |
3480 | spec_lang = arg; | |
3481 | if (!strcmp (spec_lang, "none")) | |
3482 | /* Suppress the warning if -xnone comes after the last input | |
3483 | file, because alternate command interfaces like g++ might | |
3484 | find it useful to place -xnone after each input file. */ | |
3485 | spec_lang = 0; | |
3486 | else | |
3487 | last_language_n_infiles = n_infiles; | |
3488 | do_save = false; | |
3489 | break; | |
3490 | ||
603349bf JM |
3491 | case OPT_o: |
3492 | have_o = 1; | |
3493 | #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX) | |
3494 | arg = convert_filename (arg, ! have_c, 0); | |
3495 | #endif | |
3496 | /* Save the output name in case -save-temps=obj was used. */ | |
3497 | save_temps_prefix = xstrdup (arg); | |
3498 | /* On some systems, ld cannot handle "-o" without a space. So | |
3499 | split the option from its argument. */ | |
3500 | save_switch ("-o", 1, &arg, validated); | |
3501 | return true; | |
3502 | ||
3503 | case OPT_static_libgcc: | |
3504 | case OPT_shared_libgcc: | |
3505 | case OPT_static_libgfortran: | |
3506 | case OPT_static_libstdc__: | |
3507 | /* These are always valid, since gcc.c itself understands the | |
3508 | first two, gfortranspec.c understands -static-libgfortran and | |
3509 | g++spec.c understands -static-libstdc++ */ | |
3510 | validated = true; | |
3511 | break; | |
3512 | ||
3513 | default: | |
d9d16a19 JM |
3514 | /* Various driver options need no special processing at this |
3515 | point, having been handled in a prescan above or being | |
3516 | handled by specs. */ | |
3517 | break; | |
603349bf JM |
3518 | } |
3519 | ||
3520 | if (do_save) | |
3521 | save_switch (decoded->canonical_option[0], | |
3522 | decoded->canonical_option_num_elements - 1, | |
3523 | &decoded->canonical_option[1], validated); | |
3524 | return true; | |
3525 | } | |
3526 | ||
efe5e5a0 JM |
3527 | /* Put the driver's standard set of option handlers in *HANDLERS. */ |
3528 | ||
3529 | static void | |
3530 | set_option_handlers (struct cl_option_handlers *handlers) | |
3531 | { | |
3532 | handlers->unknown_option_callback = driver_unknown_option_callback; | |
3533 | handlers->wrong_lang_callback = driver_wrong_lang_callback; | |
3534 | handlers->post_handling_callback = driver_post_handling_callback; | |
3535 | handlers->num_handlers = 1; | |
3536 | handlers->handlers[0].handler = driver_handle_option; | |
3537 | handlers->handlers[0].mask = CL_DRIVER; | |
3538 | } | |
3539 | ||
ed1f651b RS |
3540 | /* Create the vector `switches' and its contents. |
3541 | Store its length in `n_switches'. */ | |
3542 | ||
3543 | static void | |
60cf253a JM |
3544 | process_command (unsigned int decoded_options_count, |
3545 | struct cl_decoded_option *decoded_options) | |
ed1f651b | 3546 | { |
878f32c3 KG |
3547 | const char *temp; |
3548 | char *temp1; | |
f4c0a303 | 3549 | const char *tooldir_prefix; |
ba0c638e SB |
3550 | char *(*get_relative_prefix) (const char *, const char *, |
3551 | const char *) = NULL; | |
603349bf | 3552 | struct cl_option_handlers handlers; |
60cf253a | 3553 | unsigned int j; |
ed1f651b | 3554 | |
71f3e391 | 3555 | gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX"); |
8eebb258 | 3556 | |
ed1f651b RS |
3557 | n_switches = 0; |
3558 | n_infiles = 0; | |
a2a05b0a | 3559 | added_libraries = 0; |
2484b6d2 | 3560 | |
53117a2f RK |
3561 | /* Figure compiler version from version string. */ |
3562 | ||
9218435e | 3563 | compiler_version = temp1 = xstrdup (version_string); |
ad85216e | 3564 | |
878f32c3 | 3565 | for (; *temp1; ++temp1) |
53117a2f | 3566 | { |
878f32c3 | 3567 | if (*temp1 == ' ') |
53117a2f | 3568 | { |
878f32c3 | 3569 | *temp1 = '\0'; |
53117a2f RK |
3570 | break; |
3571 | } | |
3572 | } | |
ed1f651b | 3573 | |
ba0c638e SB |
3574 | /* Handle any -no-canonical-prefixes flag early, to assign the function |
3575 | that builds relative prefixes. This function creates default search | |
3576 | paths that are needed later in normal option handling. */ | |
3577 | ||
e200444e | 3578 | for (j = 1; j < decoded_options_count; j++) |
ba0c638e | 3579 | { |
e200444e | 3580 | if (decoded_options[j].opt_index == OPT_no_canonical_prefixes) |
ba0c638e SB |
3581 | { |
3582 | get_relative_prefix = make_relative_prefix_ignore_links; | |
3583 | break; | |
3584 | } | |
3585 | } | |
3586 | if (! get_relative_prefix) | |
3587 | get_relative_prefix = make_relative_prefix; | |
3588 | ||
0deb20df | 3589 | /* Set up the default search paths. If there is no GCC_EXEC_PREFIX, |
60cf253a JM |
3590 | see if we can create it from the pathname specified in |
3591 | decoded_options[0].arg. */ | |
0deb20df | 3592 | |
a8ee6e2d | 3593 | gcc_libexec_prefix = standard_libexec_prefix; |
0deb20df TT |
3594 | #ifndef VMS |
3595 | /* FIXME: make_relative_prefix doesn't yet work for VMS. */ | |
3596 | if (!gcc_exec_prefix) | |
3597 | { | |
60cf253a | 3598 | gcc_exec_prefix = get_relative_prefix (decoded_options[0].arg, |
ba0c638e SB |
3599 | standard_bindir_prefix, |
3600 | standard_exec_prefix); | |
60cf253a | 3601 | gcc_libexec_prefix = get_relative_prefix (decoded_options[0].arg, |
ba0c638e SB |
3602 | standard_bindir_prefix, |
3603 | standard_libexec_prefix); | |
0deb20df | 3604 | if (gcc_exec_prefix) |
47d33318 | 3605 | xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL)); |
0deb20df | 3606 | } |
a8ee6e2d | 3607 | else |
c7370b83 JM |
3608 | { |
3609 | /* make_relative_prefix requires a program name, but | |
3610 | GCC_EXEC_PREFIX is typically a directory name with a trailing | |
3611 | / (which is ignored by make_relative_prefix), so append a | |
3612 | program name. */ | |
3613 | char *tmp_prefix = concat (gcc_exec_prefix, "gcc", NULL); | |
ba0c638e SB |
3614 | gcc_libexec_prefix = get_relative_prefix (tmp_prefix, |
3615 | standard_exec_prefix, | |
3616 | standard_libexec_prefix); | |
f4c0a303 CD |
3617 | |
3618 | /* The path is unrelocated, so fallback to the original setting. */ | |
3619 | if (!gcc_libexec_prefix) | |
3620 | gcc_libexec_prefix = standard_libexec_prefix; | |
3621 | ||
c7370b83 JM |
3622 | free (tmp_prefix); |
3623 | } | |
a8ee6e2d | 3624 | #else |
0deb20df | 3625 | #endif |
f4c0a303 CD |
3626 | /* From this point onward, gcc_exec_prefix is non-null if the toolchain |
3627 | is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX | |
60cf253a JM |
3628 | or an automatically created GCC_EXEC_PREFIX from |
3629 | decoded_options[0].arg. */ | |
ed1f651b | 3630 | |
a288b143 | 3631 | /* Do language-specific adjustment/addition of flags. */ |
d9d16a19 | 3632 | lang_specific_driver (&decoded_options, &decoded_options_count, |
a288b143 AH |
3633 | &added_libraries); |
3634 | ||
8eebb258 | 3635 | if (gcc_exec_prefix) |
ed1f651b | 3636 | { |
6ed4bb9a | 3637 | int len = strlen (gcc_exec_prefix); |
c5c0b3d9 | 3638 | |
a8ee6e2d | 3639 | if (len > (int) sizeof ("/lib/gcc/") - 1 |
509781a4 | 3640 | && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1]))) |
6ed4bb9a | 3641 | { |
a8ee6e2d | 3642 | temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1; |
509781a4 | 3643 | if (IS_DIR_SEPARATOR (*temp) |
ba78087b | 3644 | && filename_ncmp (temp + 1, "lib", 3) == 0 |
509781a4 | 3645 | && IS_DIR_SEPARATOR (temp[4]) |
ba78087b | 3646 | && filename_ncmp (temp + 5, "gcc", 3) == 0) |
a8ee6e2d | 3647 | len -= sizeof ("/lib/gcc/") - 1; |
6ed4bb9a MM |
3648 | } |
3649 | ||
3650 | set_std_prefix (gcc_exec_prefix, len); | |
a8ee6e2d | 3651 | add_prefix (&exec_prefixes, gcc_libexec_prefix, "GCC", |
1a5d37a1 | 3652 | PREFIX_PRIORITY_LAST, 0, 0); |
922a4beb | 3653 | add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC", |
1a5d37a1 | 3654 | PREFIX_PRIORITY_LAST, 0, 0); |
ed1f651b RS |
3655 | } |
3656 | ||
3657 | /* COMPILER_PATH and LIBRARY_PATH have values | |
3658 | that are lists of directory names with colons. */ | |
3659 | ||
71f3e391 | 3660 | temp = getenv ("COMPILER_PATH"); |
ed1f651b RS |
3661 | if (temp) |
3662 | { | |
878f32c3 | 3663 | const char *startp, *endp; |
e1e4cdc4 | 3664 | char *nstore = (char *) alloca (strlen (temp) + 3); |
ed1f651b RS |
3665 | |
3666 | startp = endp = temp; | |
3667 | while (1) | |
3668 | { | |
f6ec7e54 | 3669 | if (*endp == PATH_SEPARATOR || *endp == 0) |
ed1f651b | 3670 | { |
d25a45d4 | 3671 | strncpy (nstore, startp, endp - startp); |
ed1f651b | 3672 | if (endp == startp) |
d4f2852f | 3673 | strcpy (nstore, concat (".", dir_separator_str, NULL)); |
509781a4 | 3674 | else if (!IS_DIR_SEPARATOR (endp[-1])) |
ed1f651b | 3675 | { |
d25a45d4 KH |
3676 | nstore[endp - startp] = DIR_SEPARATOR; |
3677 | nstore[endp - startp + 1] = 0; | |
ed1f651b RS |
3678 | } |
3679 | else | |
d25a45d4 | 3680 | nstore[endp - startp] = 0; |
922a4beb | 3681 | add_prefix (&exec_prefixes, nstore, 0, |
1a5d37a1 | 3682 | PREFIX_PRIORITY_LAST, 0, 0); |
76391e5a | 3683 | add_prefix (&include_prefixes, nstore, 0, |
1a5d37a1 | 3684 | PREFIX_PRIORITY_LAST, 0, 0); |
ed1f651b RS |
3685 | if (*endp == 0) |
3686 | break; | |
3687 | endp = startp = endp + 1; | |
3688 | } | |
3689 | else | |
3690 | endp++; | |
3691 | } | |
3692 | } | |
3693 | ||
71f3e391 | 3694 | temp = getenv (LIBRARY_PATH_ENV); |
fcc9ad83 | 3695 | if (temp && *cross_compile == '0') |
ed1f651b | 3696 | { |
878f32c3 | 3697 | const char *startp, *endp; |
e1e4cdc4 | 3698 | char *nstore = (char *) alloca (strlen (temp) + 3); |
ed1f651b RS |
3699 | |
3700 | startp = endp = temp; | |
3701 | while (1) | |
3702 | { | |
f6ec7e54 | 3703 | if (*endp == PATH_SEPARATOR || *endp == 0) |
ed1f651b | 3704 | { |
d25a45d4 | 3705 | strncpy (nstore, startp, endp - startp); |
ed1f651b | 3706 | if (endp == startp) |
d4f2852f | 3707 | strcpy (nstore, concat (".", dir_separator_str, NULL)); |
509781a4 | 3708 | else if (!IS_DIR_SEPARATOR (endp[-1])) |
ed1f651b | 3709 | { |
d25a45d4 KH |
3710 | nstore[endp - startp] = DIR_SEPARATOR; |
3711 | nstore[endp - startp + 1] = 0; | |
ed1f651b RS |
3712 | } |
3713 | else | |
d25a45d4 | 3714 | nstore[endp - startp] = 0; |
6496a589 | 3715 | add_prefix (&startfile_prefixes, nstore, NULL, |
1a5d37a1 | 3716 | PREFIX_PRIORITY_LAST, 0, 1); |
ed1f651b RS |
3717 | if (*endp == 0) |
3718 | break; | |
3719 | endp = startp = endp + 1; | |
3720 | } | |
3721 | else | |
3722 | endp++; | |
3723 | } | |
3724 | } | |
3725 | ||
3726 | /* Use LPATH like LIBRARY_PATH (for the CMU build program). */ | |
71f3e391 | 3727 | temp = getenv ("LPATH"); |
fcc9ad83 | 3728 | if (temp && *cross_compile == '0') |
ed1f651b | 3729 | { |
878f32c3 | 3730 | const char *startp, *endp; |
e1e4cdc4 | 3731 | char *nstore = (char *) alloca (strlen (temp) + 3); |
ed1f651b RS |
3732 | |
3733 | startp = endp = temp; | |
3734 | while (1) | |
3735 | { | |
f6ec7e54 | 3736 | if (*endp == PATH_SEPARATOR || *endp == 0) |
ed1f651b | 3737 | { |
d25a45d4 | 3738 | strncpy (nstore, startp, endp - startp); |
ed1f651b | 3739 | if (endp == startp) |
d4f2852f | 3740 | strcpy (nstore, concat (".", dir_separator_str, NULL)); |
509781a4 | 3741 | else if (!IS_DIR_SEPARATOR (endp[-1])) |
ed1f651b | 3742 | { |
d25a45d4 KH |
3743 | nstore[endp - startp] = DIR_SEPARATOR; |
3744 | nstore[endp - startp + 1] = 0; | |
ed1f651b RS |
3745 | } |
3746 | else | |
d25a45d4 | 3747 | nstore[endp - startp] = 0; |
6496a589 | 3748 | add_prefix (&startfile_prefixes, nstore, NULL, |
1a5d37a1 | 3749 | PREFIX_PRIORITY_LAST, 0, 1); |
ed1f651b RS |
3750 | if (*endp == 0) |
3751 | break; | |
3752 | endp = startp = endp + 1; | |
3753 | } | |
3754 | else | |
3755 | endp++; | |
3756 | } | |
3757 | } | |
3758 | ||
922e1882 JM |
3759 | /* Process the options and store input files and switches in their |
3760 | vectors. */ | |
3761 | ||
3762 | last_language_n_infiles = -1; | |
ed1f651b | 3763 | |
efe5e5a0 | 3764 | set_option_handlers (&handlers); |
fe7df9c4 | 3765 | |
603349bf JM |
3766 | for (j = 1; j < decoded_options_count; j++) |
3767 | { | |
3768 | switch (decoded_options[j].opt_index) | |
99f78cdd | 3769 | { |
603349bf JM |
3770 | case OPT_S: |
3771 | case OPT_c: | |
3772 | case OPT_E: | |
3773 | have_c = 1; | |
3774 | break; | |
99f78cdd | 3775 | } |
603349bf JM |
3776 | if (have_c) |
3777 | break; | |
3778 | } | |
ed1f651b | 3779 | |
603349bf JM |
3780 | for (j = 1; j < decoded_options_count; j++) |
3781 | { | |
3782 | if (decoded_options[j].opt_index == OPT_SPECIAL_input_file) | |
3a265431 | 3783 | { |
603349bf JM |
3784 | const char *arg = decoded_options[j].arg; |
3785 | const char *p = strrchr (arg, '@'); | |
922e1882 JM |
3786 | char *fname; |
3787 | long offset; | |
3788 | int consumed; | |
3789 | #ifdef HAVE_TARGET_OBJECT_SUFFIX | |
603349bf | 3790 | arg = convert_filename (arg, 0, access (arg, F_OK)); |
922e1882 JM |
3791 | #endif |
3792 | /* For LTO static archive support we handle input file | |
3793 | specifications that are composed of a filename and | |
3794 | an offset like FNAME@OFFSET. */ | |
3795 | if (p | |
603349bf | 3796 | && p != arg |
922e1882 JM |
3797 | && sscanf (p, "@%li%n", &offset, &consumed) >= 1 |
3798 | && strlen (p) == (unsigned int)consumed) | |
3799 | { | |
603349bf JM |
3800 | fname = (char *)xmalloc (p - arg + 1); |
3801 | memcpy (fname, arg, p - arg); | |
3802 | fname[p - arg] = '\0'; | |
922e1882 JM |
3803 | /* Only accept non-stdin and existing FNAME parts, otherwise |
3804 | try with the full name. */ | |
3805 | if (strcmp (fname, "-") == 0 || access (fname, F_OK) < 0) | |
3806 | { | |
3807 | free (fname); | |
603349bf | 3808 | fname = xstrdup (arg); |
922e1882 JM |
3809 | } |
3810 | } | |
3811 | else | |
603349bf | 3812 | fname = xstrdup (arg); |
922e1882 JM |
3813 | |
3814 | if (strcmp (fname, "-") != 0 && access (fname, F_OK) < 0) | |
3815 | perror_with_name (fname); | |
3816 | else | |
603349bf | 3817 | add_infile (arg, spec_lang); |
922e1882 JM |
3818 | |
3819 | free (fname); | |
603349bf | 3820 | continue; |
3a265431 | 3821 | } |
603349bf | 3822 | |
d4d24ba4 | 3823 | read_cmdline_option (&global_options, &global_options_set, |
a4d8c676 JM |
3824 | decoded_options + j, UNKNOWN_LOCATION, |
3825 | CL_DRIVER, &handlers, global_dc); | |
ed1f651b RS |
3826 | } |
3827 | ||
14fdc613 MM |
3828 | /* If -save-temps=obj and -o name, create the prefix to use for %b. |
3829 | Otherwise just make -save-temps=obj the same as -save-temps=cwd. */ | |
3830 | if (save_temps_flag == SAVE_TEMPS_OBJ && save_temps_prefix != NULL) | |
3831 | { | |
3832 | save_temps_length = strlen (save_temps_prefix); | |
3833 | temp = strrchr (lbasename (save_temps_prefix), '.'); | |
3834 | if (temp) | |
3835 | { | |
3836 | save_temps_length -= strlen (temp); | |
3837 | save_temps_prefix[save_temps_length] = '\0'; | |
3838 | } | |
3839 | ||
3840 | } | |
3841 | else if (save_temps_prefix != NULL) | |
3842 | { | |
3843 | free (save_temps_prefix); | |
3844 | save_temps_prefix = NULL; | |
3845 | } | |
3846 | ||
054e88a8 | 3847 | if (save_temps_flag && use_pipes) |
4977bab6 ZW |
3848 | { |
3849 | /* -save-temps overrides -pipe, so that temp files are produced */ | |
3850 | if (save_temps_flag) | |
2dec80c7 | 3851 | warning (0, "-pipe ignored because -save-temps specified"); |
4977bab6 ZW |
3852 | use_pipes = 0; |
3853 | } | |
1d088dee | 3854 | |
2153915d AO |
3855 | if (!compare_debug) |
3856 | { | |
3857 | const char *gcd = getenv ("GCC_COMPARE_DEBUG"); | |
3858 | ||
3859 | if (gcd && gcd[0] == '-') | |
3860 | { | |
3861 | compare_debug = 2; | |
3862 | compare_debug_opt = gcd; | |
2153915d AO |
3863 | } |
3864 | else if (gcd && *gcd && strcmp (gcd, "0")) | |
3865 | { | |
3866 | compare_debug = 3; | |
3867 | compare_debug_opt = "-gtoggle"; | |
2153915d AO |
3868 | } |
3869 | } | |
3870 | else if (compare_debug < 0) | |
3871 | { | |
3872 | compare_debug = 0; | |
3873 | gcc_assert (!compare_debug_opt); | |
3874 | } | |
3875 | ||
f4c0a303 CD |
3876 | /* Set up the search paths. We add directories that we expect to |
3877 | contain GNU Toolchain components before directories specified by | |
3878 | the machine description so that we will find GNU components (like | |
b8698a0f | 3879 | the GNU assembler) before those of the host system. */ |
ed1f651b | 3880 | |
f4c0a303 CD |
3881 | /* If we don't know where the toolchain has been installed, use the |
3882 | configured-in locations. */ | |
3883 | if (!gcc_exec_prefix) | |
3884 | { | |
48ff801b | 3885 | #ifndef OS2 |
f4c0a303 CD |
3886 | add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC", |
3887 | PREFIX_PRIORITY_LAST, 1, 0); | |
3888 | add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS", | |
3889 | PREFIX_PRIORITY_LAST, 2, 0); | |
3890 | add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS", | |
3891 | PREFIX_PRIORITY_LAST, 2, 0); | |
48ff801b | 3892 | #endif |
f4c0a303 CD |
3893 | add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS", |
3894 | PREFIX_PRIORITY_LAST, 1, 0); | |
3895 | } | |
ed1f651b | 3896 | |
f4c0a303 | 3897 | gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix)); |
9218435e | 3898 | tooldir_prefix = concat (tooldir_base_prefix, spec_machine, |
d4f2852f | 3899 | dir_separator_str, NULL); |
c648ab8a | 3900 | |
f4c0a303 CD |
3901 | /* Look for tools relative to the location from which the driver is |
3902 | running, or, if that is not available, the configured prefix. */ | |
3903 | tooldir_prefix | |
3904 | = concat (gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix, | |
3905 | spec_machine, dir_separator_str, | |
3906 | spec_version, dir_separator_str, tooldir_prefix, NULL); | |
c648ab8a | 3907 | |
9218435e | 3908 | add_prefix (&exec_prefixes, |
d4f2852f | 3909 | concat (tooldir_prefix, "bin", dir_separator_str, NULL), |
1a5d37a1 | 3910 | "BINUTILS", PREFIX_PRIORITY_LAST, 0, 0); |
48ff801b | 3911 | add_prefix (&startfile_prefixes, |
d4f2852f | 3912 | concat (tooldir_prefix, "lib", dir_separator_str, NULL), |
1a5d37a1 | 3913 | "BINUTILS", PREFIX_PRIORITY_LAST, 0, 1); |
f18fd956 | 3914 | |
047d636f DJ |
3915 | #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS) |
3916 | /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix, | |
3917 | then consider it to relocate with the rest of the GCC installation | |
3918 | if GCC_EXEC_PREFIX is set. | |
3919 | ``make_relative_prefix'' is not compiled for VMS, so don't call it. */ | |
922e1882 | 3920 | if (target_system_root && !target_system_root_changed && gcc_exec_prefix) |
4977bab6 | 3921 | { |
60cf253a | 3922 | char *tmp_prefix = get_relative_prefix (decoded_options[0].arg, |
ba0c638e SB |
3923 | standard_bindir_prefix, |
3924 | target_system_root); | |
4977bab6 | 3925 | if (tmp_prefix && access_check (tmp_prefix, F_OK) == 0) |
047d636f DJ |
3926 | { |
3927 | target_system_root = tmp_prefix; | |
3928 | target_system_root_changed = 1; | |
3929 | } | |
4977bab6 | 3930 | } |
047d636f | 3931 | #endif |
4977bab6 | 3932 | |
004fd4d5 RS |
3933 | /* More prefixes are enabled in main, after we read the specs file |
3934 | and determine whether this is cross-compilation or not. */ | |
ed1f651b | 3935 | |
fa0d5369 | 3936 | if (n_infiles == last_language_n_infiles && spec_lang != 0) |
bdc6b402 | 3937 | warning (0, "%<-x %s%> after last input file has no effect", spec_lang); |
ed1f651b | 3938 | |
2153915d AO |
3939 | if (compare_debug == 2 || compare_debug == 3) |
3940 | { | |
922e1882 | 3941 | alloc_switch (); |
2153915d AO |
3942 | switches[n_switches].part1 = concat ("fcompare-debug=", |
3943 | compare_debug_opt, | |
3944 | NULL); | |
3945 | switches[n_switches].args = 0; | |
3946 | switches[n_switches].live_cond = 0; | |
3947 | switches[n_switches].validated = 0; | |
3948 | switches[n_switches].ordering = 0; | |
3949 | n_switches++; | |
3950 | compare_debug = 1; | |
3951 | } | |
3952 | ||
69927b59 | 3953 | /* Ensure we only invoke each subprocess once. */ |
41fd0f9b | 3954 | if (print_subprocess_help || print_help_list || print_version) |
69927b59 | 3955 | { |
922e1882 | 3956 | n_infiles = 0; |
69927b59 | 3957 | |
c662432e NC |
3958 | /* Create a dummy input file, so that we can pass |
3959 | the help option on to the various sub-processes. */ | |
922e1882 | 3960 | add_infile ("help-dummy", "c"); |
69927b59 NB |
3961 | } |
3962 | ||
922e1882 | 3963 | alloc_switch (); |
ed1f651b | 3964 | switches[n_switches].part1 = 0; |
922e1882 | 3965 | alloc_infile (); |
ed1f651b RS |
3966 | infiles[n_infiles].name = 0; |
3967 | } | |
b856c15d | 3968 | |
4977bab6 | 3969 | /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS |
b856c15d RO |
3970 | and place that in the environment. */ |
3971 | ||
3972 | static void | |
1d088dee | 3973 | set_collect_gcc_options (void) |
b856c15d RO |
3974 | { |
3975 | int i; | |
3976 | int first_time; | |
3977 | ||
3978 | /* Build COLLECT_GCC_OPTIONS to have all of the options specified to | |
3979 | the compiler. */ | |
3980 | obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=", | |
3981 | sizeof ("COLLECT_GCC_OPTIONS=") - 1); | |
3982 | ||
3983 | first_time = TRUE; | |
3984 | for (i = 0; (int) i < n_switches; i++) | |
3985 | { | |
3986 | const char *const *args; | |
3987 | const char *p, *q; | |
3988 | if (!first_time) | |
3989 | obstack_grow (&collect_obstack, " ", 1); | |
3990 | ||
3991 | first_time = FALSE; | |
3992 | ||
3993 | /* Ignore elided switches. */ | |
96f5b137 L |
3994 | if ((switches[i].live_cond |
3995 | & (SWITCH_IGNORE | SWITCH_KEEP_FOR_GCC)) | |
3996 | == SWITCH_IGNORE) | |
b856c15d RO |
3997 | continue; |
3998 | ||
3999 | obstack_grow (&collect_obstack, "'-", 2); | |
4000 | q = switches[i].part1; | |
4001 | while ((p = strchr (q, '\''))) | |
4002 | { | |
4003 | obstack_grow (&collect_obstack, q, p - q); | |
4004 | obstack_grow (&collect_obstack, "'\\''", 4); | |
4005 | q = ++p; | |
4006 | } | |
4007 | obstack_grow (&collect_obstack, q, strlen (q)); | |
4008 | obstack_grow (&collect_obstack, "'", 1); | |
4009 | ||
4010 | for (args = switches[i].args; args && *args; args++) | |
4011 | { | |
4012 | obstack_grow (&collect_obstack, " '", 2); | |
4013 | q = *args; | |
4014 | while ((p = strchr (q, '\''))) | |
4015 | { | |
4016 | obstack_grow (&collect_obstack, q, p - q); | |
4017 | obstack_grow (&collect_obstack, "'\\''", 4); | |
4018 | q = ++p; | |
4019 | } | |
4020 | obstack_grow (&collect_obstack, q, strlen (q)); | |
4021 | obstack_grow (&collect_obstack, "'", 1); | |
4022 | } | |
4023 | } | |
4024 | obstack_grow (&collect_obstack, "\0", 1); | |
47d33318 | 4025 | xputenv (XOBFINISH (&collect_obstack, char *)); |
b856c15d | 4026 | } |
ed1f651b RS |
4027 | \f |
4028 | /* Process a spec string, accumulating and running commands. */ | |
4029 | ||
4030 | /* These variables describe the input file name. | |
4031 | input_file_number is the index on outfiles of this file, | |
4032 | so that the output file name can be stored for later use by %o. | |
4033 | input_basename is the start of the part of the input file | |
4034 | sans all directory names, and basename_length is the number | |
4035 | of characters starting there excluding the suffix .c or whatever. */ | |
4036 | ||
6afbc885 | 4037 | static const char *gcc_input_filename; |
ed1f651b | 4038 | static int input_file_number; |
f271358e | 4039 | size_t input_filename_length; |
ed1f651b | 4040 | static int basename_length; |
ea414c97 | 4041 | static int suffixed_basename_length; |
878f32c3 KG |
4042 | static const char *input_basename; |
4043 | static const char *input_suffix; | |
a9024779 | 4044 | #ifndef HOST_LACKS_INODE_NUMBERS |
99f78cdd | 4045 | static struct stat input_stat; |
a9024779 | 4046 | #endif |
99f78cdd | 4047 | static int input_stat_set; |
ed1f651b | 4048 | |
a9374841 MM |
4049 | /* The compiler used to process the current input file. */ |
4050 | static struct compiler *input_file_compiler; | |
4051 | ||
ed1f651b RS |
4052 | /* These are variables used within do_spec and do_spec_1. */ |
4053 | ||
4054 | /* Nonzero if an arg has been started and not yet terminated | |
4055 | (with space, tab or newline). */ | |
4056 | static int arg_going; | |
4057 | ||
4058 | /* Nonzero means %d or %g has been seen; the next arg to be terminated | |
4059 | is a temporary file name. */ | |
4060 | static int delete_this_arg; | |
4061 | ||
4062 | /* Nonzero means %w has been seen; the next arg to be terminated | |
4063 | is the output file name of this compilation. */ | |
4064 | static int this_is_output_file; | |
4065 | ||
4066 | /* Nonzero means %s has been seen; the next arg to be terminated | |
4067 | is the name of a library file and we should try the standard | |
4068 | search dirs for it. */ | |
4069 | static int this_is_library_file; | |
4070 | ||
3beb864c NC |
4071 | /* Nonzero means %T has been seen; the next arg to be terminated |
4072 | is the name of a linker script and we should try all of the | |
4073 | standard search dirs for it. If it is found insert a --script | |
4074 | command line switch and then substitute the full path in place, | |
4075 | otherwise generate an error message. */ | |
4076 | static int this_is_linker_script; | |
4077 | ||
a99bf70c JW |
4078 | /* Nonzero means that the input of this command is coming from a pipe. */ |
4079 | static int input_from_pipe; | |
4080 | ||
11972f66 | 4081 | /* Nonnull means substitute this for any suffix when outputting a switches |
dc297297 | 4082 | arguments. */ |
11972f66 NS |
4083 | static const char *suffix_subst; |
4084 | ||
13e7cedb DH |
4085 | /* If there is an argument being accumulated, terminate it and store it. */ |
4086 | ||
4087 | static void | |
4088 | end_going_arg (void) | |
4089 | { | |
4090 | if (arg_going) | |
4091 | { | |
4092 | const char *string; | |
4093 | ||
4094 | obstack_1grow (&obstack, 0); | |
4095 | string = XOBFINISH (&obstack, const char *); | |
4096 | if (this_is_library_file) | |
4097 | string = find_file (string); | |
3beb864c NC |
4098 | if (this_is_linker_script) |
4099 | { | |
4100 | char * full_script_path = find_a_file (&startfile_prefixes, string, R_OK, true); | |
4101 | ||
4102 | if (full_script_path == NULL) | |
4103 | { | |
bdc6b402 | 4104 | error ("unable to locate default linker script %qs in the library search paths", string); |
3beb864c NC |
4105 | /* Script was not found on search path. */ |
4106 | return; | |
4107 | } | |
4108 | store_arg ("--script", false, false); | |
4109 | string = full_script_path; | |
4110 | } | |
13e7cedb DH |
4111 | store_arg (string, delete_this_arg, this_is_output_file); |
4112 | if (this_is_output_file) | |
4113 | outfiles[input_file_number] = string; | |
4114 | arg_going = 0; | |
4115 | } | |
4116 | } | |
4117 | ||
fe7df9c4 SP |
4118 | |
4119 | /* Parse the WRAPPER string which is a comma separated list of the command line | |
4120 | and insert them into the beginning of argbuf. */ | |
4121 | ||
4122 | static void | |
4123 | insert_wrapper (const char *wrapper) | |
4124 | { | |
4125 | int n = 0; | |
4126 | int i; | |
4127 | char *buf = xstrdup (wrapper); | |
4128 | char *p = buf; | |
5b634ee0 | 4129 | unsigned int old_length = VEC_length (const_char_p, argbuf); |
fe7df9c4 SP |
4130 | |
4131 | do | |
4132 | { | |
4133 | n++; | |
4134 | while (*p == ',') | |
4135 | p++; | |
4136 | } | |
4137 | while ((p = strchr (p, ',')) != NULL); | |
4138 | ||
5b634ee0 JM |
4139 | VEC_safe_grow (const_char_p, heap, argbuf, old_length + n); |
4140 | memmove (VEC_address (const_char_p, argbuf) + n, | |
4141 | VEC_address (const_char_p, argbuf), | |
4142 | old_length * sizeof (const_char_p)); | |
fe7df9c4 SP |
4143 | |
4144 | i = 0; | |
4145 | p = buf; | |
4146 | do | |
4147 | { | |
4148 | while (*p == ',') | |
4149 | { | |
4150 | *p = 0; | |
4151 | p++; | |
4152 | } | |
5b634ee0 JM |
4153 | VEC_replace (const_char_p, argbuf, i, p); |
4154 | i++; | |
fe7df9c4 SP |
4155 | } |
4156 | while ((p = strchr (p, ',')) != NULL); | |
4157 | gcc_assert (i == n); | |
fe7df9c4 SP |
4158 | } |
4159 | ||
ed1f651b RS |
4160 | /* Process the spec SPEC and run the commands specified therein. |
4161 | Returns 0 if the spec is successfully processed; -1 if failed. */ | |
4162 | ||
f271358e | 4163 | int |
1d088dee | 4164 | do_spec (const char *spec) |
ed1f651b RS |
4165 | { |
4166 | int value; | |
4167 | ||
343f59d9 | 4168 | value = do_spec_2 (spec); |
ed1f651b RS |
4169 | |
4170 | /* Force out any unfinished command. | |
4171 | If -pipe, this forces out the last command if it ended in `|'. */ | |
4172 | if (value == 0) | |
4173 | { | |
5b634ee0 JM |
4174 | if (VEC_length (const_char_p, argbuf) > 0 |
4175 | && !strcmp (VEC_last (const_char_p, argbuf), "|")) | |
4176 | VEC_pop (const_char_p, argbuf); | |
ed1f651b | 4177 | |
b856c15d RO |
4178 | set_collect_gcc_options (); |
4179 | ||
5b634ee0 | 4180 | if (VEC_length (const_char_p, argbuf) > 0) |
ed1f651b RS |
4181 | value = execute (); |
4182 | } | |
4183 | ||
4184 | return value; | |
4185 | } | |
4186 | ||
343f59d9 | 4187 | static int |
1d088dee | 4188 | do_spec_2 (const char *spec) |
343f59d9 | 4189 | { |
6544fbcb RS |
4190 | int result; |
4191 | ||
343f59d9 AM |
4192 | clear_args (); |
4193 | arg_going = 0; | |
4194 | delete_this_arg = 0; | |
4195 | this_is_output_file = 0; | |
4196 | this_is_library_file = 0; | |
3beb864c | 4197 | this_is_linker_script = 0; |
343f59d9 AM |
4198 | input_from_pipe = 0; |
4199 | suffix_subst = NULL; | |
4200 | ||
6544fbcb RS |
4201 | result = do_spec_1 (spec, 0, NULL); |
4202 | ||
13e7cedb | 4203 | end_going_arg (); |
6544fbcb RS |
4204 | |
4205 | return result; | |
343f59d9 AM |
4206 | } |
4207 | ||
db36994b | 4208 | |
7816bea0 DJ |
4209 | /* Process the given spec string and add any new options to the end |
4210 | of the switches/n_switches array. */ | |
4211 | ||
4212 | static void | |
1d088dee | 4213 | do_option_spec (const char *name, const char *spec) |
7816bea0 DJ |
4214 | { |
4215 | unsigned int i, value_count, value_len; | |
4216 | const char *p, *q, *value; | |
4217 | char *tmp_spec, *tmp_spec_p; | |
4218 | ||
4219 | if (configure_default_options[0].name == NULL) | |
4220 | return; | |
4221 | ||
4222 | for (i = 0; i < ARRAY_SIZE (configure_default_options); i++) | |
4223 | if (strcmp (configure_default_options[i].name, name) == 0) | |
4224 | break; | |
4225 | if (i == ARRAY_SIZE (configure_default_options)) | |
4226 | return; | |
4227 | ||
4228 | value = configure_default_options[i].value; | |
4229 | value_len = strlen (value); | |
4230 | ||
4231 | /* Compute the size of the final spec. */ | |
4232 | value_count = 0; | |
4233 | p = spec; | |
4234 | while ((p = strstr (p, "%(VALUE)")) != NULL) | |
4235 | { | |
4236 | p ++; | |
4237 | value_count ++; | |
4238 | } | |
4239 | ||
4240 | /* Replace each %(VALUE) by the specified value. */ | |
e1e4cdc4 | 4241 | tmp_spec = (char *) alloca (strlen (spec) + 1 |
7816bea0 DJ |
4242 | + value_count * (value_len - strlen ("%(VALUE)"))); |
4243 | tmp_spec_p = tmp_spec; | |
4244 | q = spec; | |
4245 | while ((p = strstr (q, "%(VALUE)")) != NULL) | |
4246 | { | |
4247 | memcpy (tmp_spec_p, q, p - q); | |
4248 | tmp_spec_p = tmp_spec_p + (p - q); | |
4249 | memcpy (tmp_spec_p, value, value_len); | |
4250 | tmp_spec_p += value_len; | |
4251 | q = p + strlen ("%(VALUE)"); | |
4252 | } | |
4253 | strcpy (tmp_spec_p, q); | |
4254 | ||
4255 | do_self_spec (tmp_spec); | |
4256 | } | |
4257 | ||
db36994b RS |
4258 | /* Process the given spec string and add any new options to the end |
4259 | of the switches/n_switches array. */ | |
4260 | ||
4261 | static void | |
1d088dee | 4262 | do_self_spec (const char *spec) |
db36994b | 4263 | { |
94b90527 JJ |
4264 | int i; |
4265 | ||
db36994b RS |
4266 | do_spec_2 (spec); |
4267 | do_spec_1 (" ", 0, NULL); | |
4268 | ||
94b90527 JJ |
4269 | /* Mark %<S switches processed by do_self_spec to be ignored permanently. |
4270 | do_self_specs adds the replacements to switches array, so it shouldn't | |
4271 | be processed afterwards. */ | |
4272 | for (i = 0; i < n_switches; i++) | |
4273 | if ((switches[i].live_cond & SWITCH_IGNORE)) | |
4274 | switches[i].live_cond |= SWITCH_IGNORE_PERMANENTLY; | |
4275 | ||
5b634ee0 | 4276 | if (VEC_length (const_char_p, argbuf) > 0) |
db36994b | 4277 | { |
efe5e5a0 JM |
4278 | const char **argbuf_copy; |
4279 | struct cl_decoded_option *decoded_options; | |
4280 | struct cl_option_handlers handlers; | |
4281 | unsigned int decoded_options_count; | |
4282 | unsigned int j; | |
db36994b | 4283 | |
efe5e5a0 JM |
4284 | /* Create a copy of argbuf with a dummy argv[0] entry for |
4285 | decode_cmdline_options_to_array. */ | |
5b634ee0 JM |
4286 | argbuf_copy = XNEWVEC (const char *, |
4287 | VEC_length (const_char_p, argbuf) + 1); | |
efe5e5a0 | 4288 | argbuf_copy[0] = ""; |
5b634ee0 JM |
4289 | memcpy (argbuf_copy + 1, VEC_address (const_char_p, argbuf), |
4290 | VEC_length (const_char_p, argbuf) * sizeof (const char *)); | |
db36994b | 4291 | |
5b634ee0 JM |
4292 | decode_cmdline_options_to_array (VEC_length (const_char_p, argbuf) + 1, |
4293 | argbuf_copy, | |
efe5e5a0 JM |
4294 | CL_DRIVER, &decoded_options, |
4295 | &decoded_options_count); | |
2153915d | 4296 | |
efe5e5a0 | 4297 | set_option_handlers (&handlers); |
2153915d | 4298 | |
efe5e5a0 JM |
4299 | for (j = 1; j < decoded_options_count; j++) |
4300 | { | |
4301 | switch (decoded_options[j].opt_index) | |
2153915d | 4302 | { |
efe5e5a0 JM |
4303 | case OPT_SPECIAL_input_file: |
4304 | /* Specs should only generate options, not input | |
4305 | files. */ | |
4306 | if (strcmp (decoded_options[j].arg, "-") != 0) | |
4307 | fatal_error ("switch %qs does not start with %<-%>", | |
4308 | decoded_options[j].arg); | |
4309 | else | |
4310 | fatal_error ("spec-generated switch is just %<-%>"); | |
4311 | break; | |
2153915d | 4312 | |
efe5e5a0 JM |
4313 | case OPT_fcompare_debug_second: |
4314 | case OPT_fcompare_debug: | |
4315 | case OPT_fcompare_debug_: | |
4316 | case OPT_o: | |
4317 | /* Avoid duplicate processing of some options from | |
4318 | compare-debug specs; just save them here. */ | |
4319 | save_switch (decoded_options[j].canonical_option[0], | |
4320 | (decoded_options[j].canonical_option_num_elements | |
4321 | - 1), | |
4322 | &decoded_options[j].canonical_option[1], false); | |
4323 | break; | |
4324 | ||
4325 | default: | |
4326 | read_cmdline_option (&global_options, &global_options_set, | |
a4d8c676 JM |
4327 | decoded_options + j, UNKNOWN_LOCATION, |
4328 | CL_DRIVER, &handlers, global_dc); | |
efe5e5a0 | 4329 | break; |
2153915d | 4330 | } |
db36994b | 4331 | } |
2153915d | 4332 | |
efe5e5a0 | 4333 | alloc_switch (); |
2153915d | 4334 | switches[n_switches].part1 = 0; |
db36994b RS |
4335 | } |
4336 | } | |
4337 | ||
00dcee0c AM |
4338 | /* Callback for processing %D and %I specs. */ |
4339 | ||
4340 | struct spec_path_info { | |
4341 | const char *option; | |
4342 | const char *append; | |
4343 | size_t append_len; | |
4344 | bool omit_relative; | |
4345 | bool separate_options; | |
4346 | }; | |
4347 | ||
4348 | static void * | |
4349 | spec_path (char *path, void *data) | |
76391e5a | 4350 | { |
e1e4cdc4 | 4351 | struct spec_path_info *info = (struct spec_path_info *) data; |
00dcee0c AM |
4352 | size_t len = 0; |
4353 | char save = 0; | |
76391e5a | 4354 | |
00dcee0c AM |
4355 | if (info->omit_relative && !IS_ABSOLUTE_PATH (path)) |
4356 | return NULL; | |
4357 | ||
4358 | if (info->append_len != 0) | |
76391e5a | 4359 | { |
00dcee0c AM |
4360 | len = strlen (path); |
4361 | memcpy (path + len, info->append, info->append_len + 1); | |
76391e5a PB |
4362 | } |
4363 | ||
00dcee0c AM |
4364 | if (!is_directory (path, true)) |
4365 | return NULL; | |
76391e5a | 4366 | |
00dcee0c AM |
4367 | do_spec_1 (info->option, 1, NULL); |
4368 | if (info->separate_options) | |
4369 | do_spec_1 (" ", 0, NULL); | |
4370 | ||
4371 | if (info->append_len == 0) | |
76391e5a | 4372 | { |
00dcee0c AM |
4373 | len = strlen (path); |
4374 | save = path[len - 1]; | |
4375 | if (IS_DIR_SEPARATOR (path[len - 1])) | |
4376 | path[len - 1] = '\0'; | |
76391e5a | 4377 | } |
00dcee0c AM |
4378 | |
4379 | do_spec_1 (path, 1, NULL); | |
4380 | do_spec_1 (" ", 0, NULL); | |
4381 | ||
4382 | /* Must not damage the original path. */ | |
4383 | if (info->append_len == 0) | |
4384 | path[len - 1] = save; | |
4385 | ||
4386 | return NULL; | |
76391e5a PB |
4387 | } |
4388 | ||
5a691e98 RAE |
4389 | /* Create a temporary FILE with the contents of ARGV. Add @FILE to the |
4390 | argument list. */ | |
4391 | ||
4392 | static void | |
4393 | create_at_file (char **argv) | |
4394 | { | |
4395 | char *temp_file = make_temp_file (""); | |
4396 | char *at_argument = concat ("@", temp_file, NULL); | |
4397 | FILE *f = fopen (temp_file, "w"); | |
4398 | int status; | |
4399 | ||
4400 | if (f == NULL) | |
2dec80c7 JM |
4401 | fatal_error ("could not open temporary response file %s", |
4402 | temp_file); | |
5a691e98 RAE |
4403 | |
4404 | status = writeargv (argv, f); | |
4405 | ||
4406 | if (status) | |
2dec80c7 JM |
4407 | fatal_error ("could not write to temporary response file %s", |
4408 | temp_file); | |
5a691e98 RAE |
4409 | |
4410 | status = fclose (f); | |
4411 | ||
4412 | if (EOF == status) | |
2dec80c7 JM |
4413 | fatal_error ("could not close temporary response file %s", |
4414 | temp_file); | |
5a691e98 RAE |
4415 | |
4416 | store_arg (at_argument, 0, 0); | |
4417 | ||
4418 | record_temp_file (temp_file, !save_temps_flag, !save_temps_flag); | |
4419 | } | |
4420 | ||
4421 | /* True if we should compile INFILE. */ | |
4422 | ||
4423 | static bool | |
4424 | compile_input_file_p (struct infile *infile) | |
4425 | { | |
4426 | if ((!infile->language) || (infile->language[0] != '*')) | |
4427 | if (infile->incompiler == input_file_compiler) | |
4428 | return true; | |
4429 | return false; | |
4430 | } | |
4431 | ||
69d540bd NF |
4432 | /* Process each member of VEC as a spec. */ |
4433 | ||
4434 | static void | |
4435 | do_specs_vec (VEC(char_p,heap) *vec) | |
4436 | { | |
4437 | unsigned ix; | |
4438 | char *opt; | |
4439 | ||
4440 | FOR_EACH_VEC_ELT (char_p, vec, ix, opt) | |
4441 | { | |
4442 | do_spec_1 (opt, 1, NULL); | |
4443 | /* Make each accumulated option a separate argument. */ | |
4444 | do_spec_1 (" ", 0, NULL); | |
4445 | } | |
4446 | } | |
4447 | ||
ed1f651b RS |
4448 | /* Process the sub-spec SPEC as a portion of a larger spec. |
4449 | This is like processing a whole spec except that we do | |
4450 | not initialize at the beginning and we do not supply a | |
4451 | newline by default at the end. | |
4452 | INSWITCH nonzero means don't process %-sequences in SPEC; | |
4453 | in this case, % is treated as an ordinary character. | |
4454 | This is used while substituting switches. | |
4455 | INSWITCH nonzero also causes SPC not to terminate an argument. | |
4456 | ||
4457 | Value is zero unless a line was finished | |
4458 | and the command on that line reported an error. */ | |
4459 | ||
4460 | static int | |
1d088dee | 4461 | do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part) |
ed1f651b | 4462 | { |
b3694847 SS |
4463 | const char *p = spec; |
4464 | int c; | |
ed1f651b | 4465 | int i; |
3279bba6 | 4466 | int value; |
ed1f651b | 4467 | |
7fcf46f5 JZ |
4468 | /* If it's an empty string argument to a switch, keep it as is. */ |
4469 | if (inswitch && !*p) | |
4470 | arg_going = 1; | |
4471 | ||
ededb2fc | 4472 | while ((c = *p++)) |
ed1f651b RS |
4473 | /* If substituting a switch, treat all chars like letters. |
4474 | Otherwise, NL, SPC, TAB and % are special. */ | |
4475 | switch (inswitch ? 'a' : c) | |
4476 | { | |
4477 | case '\n': | |
13e7cedb | 4478 | end_going_arg (); |
ed1f651b | 4479 | |
5b634ee0 JM |
4480 | if (VEC_length (const_char_p, argbuf) > 0 |
4481 | && !strcmp (VEC_last (const_char_p, argbuf), "|")) | |
ed1f651b | 4482 | { |
ed1f651b RS |
4483 | /* A `|' before the newline means use a pipe here, |
4484 | but only if -pipe was specified. | |
4485 | Otherwise, execute now and don't pass the `|' as an arg. */ | |
4977bab6 | 4486 | if (use_pipes) |
ed1f651b | 4487 | { |
a99bf70c | 4488 | input_from_pipe = 1; |
ed1f651b RS |
4489 | break; |
4490 | } | |
4491 | else | |
5b634ee0 | 4492 | VEC_pop (const_char_p, argbuf); |
ed1f651b RS |
4493 | } |
4494 | ||
b856c15d RO |
4495 | set_collect_gcc_options (); |
4496 | ||
5b634ee0 | 4497 | if (VEC_length (const_char_p, argbuf) > 0) |
ed1f651b | 4498 | { |
3279bba6 | 4499 | value = execute (); |
ed1f651b RS |
4500 | if (value) |
4501 | return value; | |
4502 | } | |
4503 | /* Reinitialize for a new command, and for a new argument. */ | |
4504 | clear_args (); | |
4505 | arg_going = 0; | |
4506 | delete_this_arg = 0; | |
4507 | this_is_output_file = 0; | |
4508 | this_is_library_file = 0; | |
3beb864c | 4509 | this_is_linker_script = 0; |
a99bf70c | 4510 | input_from_pipe = 0; |
ed1f651b RS |
4511 | break; |
4512 | ||
4513 | case '|': | |
13e7cedb | 4514 | end_going_arg (); |
ed1f651b RS |
4515 | |
4516 | /* Use pipe */ | |
4517 | obstack_1grow (&obstack, c); | |
4518 | arg_going = 1; | |
4519 | break; | |
4520 | ||
4521 | case '\t': | |
4522 | case ' ': | |
13e7cedb DH |
4523 | end_going_arg (); |
4524 | ||
ed1f651b | 4525 | /* Reinitialize for a new argument. */ |
ed1f651b RS |
4526 | delete_this_arg = 0; |
4527 | this_is_output_file = 0; | |
4528 | this_is_library_file = 0; | |
3beb864c | 4529 | this_is_linker_script = 0; |
ed1f651b RS |
4530 | break; |
4531 | ||
4532 | case '%': | |
4533 | switch (c = *p++) | |
4534 | { | |
4535 | case 0: | |
bdc6b402 | 4536 | fatal_error ("spec %qs invalid", spec); |
ed1f651b RS |
4537 | |
4538 | case 'b': | |
14fdc613 MM |
4539 | if (save_temps_length) |
4540 | obstack_grow (&obstack, save_temps_prefix, save_temps_length); | |
4541 | else | |
4542 | obstack_grow (&obstack, input_basename, basename_length); | |
2153915d AO |
4543 | if (compare_debug < 0) |
4544 | obstack_grow (&obstack, ".gk", 3); | |
ed1f651b RS |
4545 | arg_going = 1; |
4546 | break; | |
4547 | ||
ea414c97 | 4548 | case 'B': |
14fdc613 MM |
4549 | if (save_temps_length) |
4550 | obstack_grow (&obstack, save_temps_prefix, save_temps_length); | |
4551 | else | |
4552 | obstack_grow (&obstack, input_basename, suffixed_basename_length); | |
2153915d AO |
4553 | if (compare_debug < 0) |
4554 | obstack_grow (&obstack, ".gk", 3); | |
ea414c97 ZW |
4555 | arg_going = 1; |
4556 | break; | |
4557 | ||
ed1f651b RS |
4558 | case 'd': |
4559 | delete_this_arg = 2; | |
4560 | break; | |
4561 | ||
4562 | /* Dump out the directories specified with LIBRARY_PATH, | |
004fd4d5 RS |
4563 | followed by the absolute directories |
4564 | that we search for startfiles. */ | |
ed1f651b | 4565 | case 'D': |
8cacec76 | 4566 | { |
00dcee0c | 4567 | struct spec_path_info info; |
59014d0a | 4568 | |
00dcee0c AM |
4569 | info.option = "-L"; |
4570 | info.append_len = 0; | |
76391e5a | 4571 | #ifdef RELATIVE_PREFIX_NOT_LINKDIR |
00dcee0c AM |
4572 | /* Used on systems which record the specified -L dirs |
4573 | and use them to search for dynamic linking. | |
4574 | Relative directories always come from -B, | |
4575 | and it is better not to use them for searching | |
4576 | at run time. In particular, stage1 loses. */ | |
4577 | info.omit_relative = true; | |
76391e5a | 4578 | #else |
00dcee0c | 4579 | info.omit_relative = false; |
004fd4d5 | 4580 | #endif |
00dcee0c AM |
4581 | info.separate_options = false; |
4582 | ||
4583 | for_each_path (&startfile_prefixes, true, 0, spec_path, &info); | |
8cacec76 | 4584 | } |
ed1f651b RS |
4585 | break; |
4586 | ||
4587 | case 'e': | |
ab87f8c8 | 4588 | /* %efoo means report an error with `foo' as error message |
ed1f651b RS |
4589 | and don't execute any more commands for this file. */ |
4590 | { | |
878f32c3 | 4591 | const char *q = p; |
ed1f651b | 4592 | char *buf; |
d25a45d4 KH |
4593 | while (*p != 0 && *p != '\n') |
4594 | p++; | |
e1e4cdc4 | 4595 | buf = (char *) alloca (p - q + 1); |
ed1f651b RS |
4596 | strncpy (buf, q, p - q); |
4597 | buf[p - q] = 0; | |
5bc69b92 | 4598 | error ("%s", _(buf)); |
ed1f651b RS |
4599 | return -1; |
4600 | } | |
4601 | break; | |
4a88a060 | 4602 | case 'n': |
09da1532 | 4603 | /* %nfoo means report a notice with `foo' on stderr. */ |
4a88a060 JH |
4604 | { |
4605 | const char *q = p; | |
4606 | char *buf; | |
4607 | while (*p != 0 && *p != '\n') | |
4608 | p++; | |
e1e4cdc4 | 4609 | buf = (char *) alloca (p - q + 1); |
4a88a060 JH |
4610 | strncpy (buf, q, p - q); |
4611 | buf[p - q] = 0; | |
2dec80c7 | 4612 | inform (0, "%s", _(buf)); |
4a88a060 JH |
4613 | if (*p) |
4614 | p++; | |
4615 | } | |
4616 | break; | |
ed1f651b | 4617 | |
d25a45d4 KH |
4618 | case 'j': |
4619 | { | |
4620 | struct stat st; | |
4621 | ||
4977bab6 ZW |
4622 | /* If save_temps_flag is off, and the HOST_BIT_BUCKET is |
4623 | defined, and it is not a directory, and it is | |
4624 | writable, use it. Otherwise, treat this like any | |
4625 | other temporary file. */ | |
d25a45d4 KH |
4626 | |
4627 | if ((!save_temps_flag) | |
4628 | && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode)) | |
4629 | && (access (HOST_BIT_BUCKET, W_OK) == 0)) | |
4630 | { | |
4631 | obstack_grow (&obstack, HOST_BIT_BUCKET, | |
4632 | strlen (HOST_BIT_BUCKET)); | |
4633 | delete_this_arg = 0; | |
4634 | arg_going = 1; | |
4635 | break; | |
4636 | } | |
4637 | } | |
4977bab6 ZW |
4638 | goto create_temp_file; |
4639 | case '|': | |
4640 | if (use_pipes) | |
4641 | { | |
4642 | obstack_1grow (&obstack, '-'); | |
4643 | delete_this_arg = 0; | |
4644 | arg_going = 1; | |
4645 | ||
4646 | /* consume suffix */ | |
a92dd235 | 4647 | while (*p == '.' || ISALNUM ((unsigned char) *p)) |
4977bab6 ZW |
4648 | p++; |
4649 | if (p[0] == '%' && p[1] == 'O') | |
4650 | p += 2; | |
1d088dee | 4651 | |
4977bab6 ZW |
4652 | break; |
4653 | } | |
4654 | goto create_temp_file; | |
4655 | case 'm': | |
4656 | if (use_pipes) | |
4657 | { | |
4658 | /* consume suffix */ | |
a92dd235 | 4659 | while (*p == '.' || ISALNUM ((unsigned char) *p)) |
4977bab6 ZW |
4660 | p++; |
4661 | if (p[0] == '%' && p[1] == 'O') | |
4662 | p += 2; | |
1d088dee | 4663 | |
4977bab6 ZW |
4664 | break; |
4665 | } | |
4666 | goto create_temp_file; | |
ed1f651b | 4667 | case 'g': |
d887e808 | 4668 | case 'u': |
4401b31c | 4669 | case 'U': |
4977bab6 | 4670 | create_temp_file: |
ed1f651b | 4671 | { |
fb266030 | 4672 | struct temp_name *t; |
dd75c292 | 4673 | int suffix_length; |
878f32c3 | 4674 | const char *suffix = p; |
a1d9074c | 4675 | char *saved_suffix = NULL; |
dd75c292 | 4676 | |
a92dd235 | 4677 | while (*p == '.' || ISALNUM ((unsigned char) *p)) |
a1d9074c TT |
4678 | p++; |
4679 | suffix_length = p - suffix; | |
dd75c292 CB |
4680 | if (p[0] == '%' && p[1] == 'O') |
4681 | { | |
cbc54665 | 4682 | p += 2; |
dd75c292 | 4683 | /* We don't support extra suffix characters after %O. */ |
a92dd235 | 4684 | if (*p == '.' || ISALNUM ((unsigned char) *p)) |
bdc6b402 | 4685 | fatal_error ("spec %qs has invalid %<%%0%c%>", spec, *p); |
a1d9074c | 4686 | if (suffix_length == 0) |
45936a85 | 4687 | suffix = TARGET_OBJECT_SUFFIX; |
a1d9074c TT |
4688 | else |
4689 | { | |
4690 | saved_suffix | |
5ed6ace5 | 4691 | = XNEWVEC (char, suffix_length |
703ad42b | 4692 | + strlen (TARGET_OBJECT_SUFFIX)); |
a1d9074c TT |
4693 | strncpy (saved_suffix, suffix, suffix_length); |
4694 | strcpy (saved_suffix + suffix_length, | |
45936a85 | 4695 | TARGET_OBJECT_SUFFIX); |
a1d9074c | 4696 | } |
45936a85 | 4697 | suffix_length += strlen (TARGET_OBJECT_SUFFIX); |
dd75c292 | 4698 | } |
589005ff | 4699 | |
2153915d AO |
4700 | if (compare_debug < 0) |
4701 | { | |
4702 | suffix = concat (".gk", suffix, NULL); | |
4703 | suffix_length += 3; | |
4704 | } | |
4705 | ||
14fdc613 MM |
4706 | /* If -save-temps=obj and -o were specified, use that for the |
4707 | temp file. */ | |
4708 | if (save_temps_length) | |
4709 | { | |
4710 | char *tmp; | |
4711 | temp_filename_length | |
4712 | = save_temps_length + suffix_length + 1; | |
4713 | tmp = (char *) alloca (temp_filename_length); | |
4714 | memcpy (tmp, save_temps_prefix, save_temps_length); | |
4715 | memcpy (tmp + save_temps_length, suffix, suffix_length); | |
4716 | tmp[save_temps_length + suffix_length] = '\0'; | |
4717 | temp_filename = save_string (tmp, | |
4718 | temp_filename_length + 1); | |
4719 | obstack_grow (&obstack, temp_filename, | |
4720 | temp_filename_length); | |
4721 | arg_going = 1; | |
4722 | delete_this_arg = 0; | |
4723 | break; | |
4724 | } | |
4725 | ||
6afbc885 | 4726 | /* If the gcc_input_filename has the same suffix specified |
99f78cdd IR |
4727 | for the %g, %u, or %U, and -save-temps is specified, |
4728 | we could end up using that file as an intermediate | |
4729 | thus clobbering the user's source file (.e.g., | |
4730 | gcc -save-temps foo.s would clobber foo.s with the | |
4731 | output of cpp0). So check for this condition and | |
4732 | generate a temp file as the intermediate. */ | |
589005ff | 4733 | |
99f78cdd IR |
4734 | if (save_temps_flag) |
4735 | { | |
6ea2b70d | 4736 | char *tmp; |
14fdc613 MM |
4737 | temp_filename_length = basename_length + suffix_length + 1; |
4738 | tmp = (char *) alloca (temp_filename_length); | |
4739 | memcpy (tmp, input_basename, basename_length); | |
4740 | memcpy (tmp + basename_length, suffix, suffix_length); | |
4741 | tmp[basename_length + suffix_length] = '\0'; | |
6ea2b70d | 4742 | temp_filename = tmp; |
14fdc613 | 4743 | |
ba78087b | 4744 | if (filename_cmp (temp_filename, gcc_input_filename) != 0) |
99f78cdd | 4745 | { |
a9024779 | 4746 | #ifndef HOST_LACKS_INODE_NUMBERS |
1d088dee | 4747 | struct stat st_temp; |
589005ff | 4748 | |
1d088dee AJ |
4749 | /* Note, set_input() resets input_stat_set to 0. */ |
4750 | if (input_stat_set == 0) | |
4751 | { | |
6afbc885 JM |
4752 | input_stat_set = stat (gcc_input_filename, |
4753 | &input_stat); | |
1d088dee AJ |
4754 | if (input_stat_set >= 0) |
4755 | input_stat_set = 1; | |
4756 | } | |
589005ff | 4757 | |
6afbc885 | 4758 | /* If we have the stat for the gcc_input_filename |
1d088dee AJ |
4759 | and we can do the stat for the temp_filename |
4760 | then the they could still refer to the same | |
4761 | file if st_dev/st_ino's are the same. */ | |
99f78cdd IR |
4762 | if (input_stat_set != 1 |
4763 | || stat (temp_filename, &st_temp) < 0 | |
4764 | || input_stat.st_dev != st_temp.st_dev | |
4765 | || input_stat.st_ino != st_temp.st_ino) | |
a9024779 DS |
4766 | #else |
4767 | /* Just compare canonical pathnames. */ | |
6afbc885 | 4768 | char* input_realname = lrealpath (gcc_input_filename); |
a9024779 | 4769 | char* temp_realname = lrealpath (temp_filename); |
ba78087b | 4770 | bool files_differ = filename_cmp (input_realname, temp_realname); |
a9024779 DS |
4771 | free (input_realname); |
4772 | free (temp_realname); | |
7904f95f | 4773 | if (files_differ) |
a9024779 | 4774 | #endif |
589005ff | 4775 | { |
99f78cdd IR |
4776 | temp_filename = save_string (temp_filename, |
4777 | temp_filename_length + 1); | |
4778 | obstack_grow (&obstack, temp_filename, | |
1d088dee | 4779 | temp_filename_length); |
99f78cdd | 4780 | arg_going = 1; |
d2dff06b | 4781 | delete_this_arg = 0; |
99f78cdd IR |
4782 | break; |
4783 | } | |
4784 | } | |
4785 | } | |
fb266030 TW |
4786 | |
4787 | /* See if we already have an association of %g/%u/%U and | |
4788 | suffix. */ | |
4789 | for (t = temp_names; t; t = t->next) | |
dd75c292 CB |
4790 | if (t->length == suffix_length |
4791 | && strncmp (t->suffix, suffix, suffix_length) == 0 | |
95456d43 | 4792 | && t->unique == (c == 'u' || c == 'U' || c == 'j')) |
fb266030 TW |
4793 | break; |
4794 | ||
2297fdf1 TT |
4795 | /* Make a new association if needed. %u and %j |
4796 | require one. */ | |
49009afd | 4797 | if (t == 0 || c == 'u' || c == 'j') |
fb266030 TW |
4798 | { |
4799 | if (t == 0) | |
4800 | { | |
e1e4cdc4 | 4801 | t = XNEW (struct temp_name); |
fb266030 TW |
4802 | t->next = temp_names; |
4803 | temp_names = t; | |
4804 | } | |
dd75c292 | 4805 | t->length = suffix_length; |
2297fdf1 TT |
4806 | if (saved_suffix) |
4807 | { | |
4808 | t->suffix = saved_suffix; | |
4809 | saved_suffix = NULL; | |
4810 | } | |
4811 | else | |
4812 | t->suffix = save_string (suffix, suffix_length); | |
95456d43 | 4813 | t->unique = (c == 'u' || c == 'U' || c == 'j'); |
dd75c292 | 4814 | temp_filename = make_temp_file (t->suffix); |
6aa62cff | 4815 | temp_filename_length = strlen (temp_filename); |
fb266030 TW |
4816 | t->filename = temp_filename; |
4817 | t->filename_length = temp_filename_length; | |
4818 | } | |
4819 | ||
04695783 | 4820 | free (saved_suffix); |
a1d9074c | 4821 | |
fb266030 | 4822 | obstack_grow (&obstack, t->filename, t->filename_length); |
b9490a6e | 4823 | delete_this_arg = 1; |
ed1f651b RS |
4824 | } |
4825 | arg_going = 1; | |
4826 | break; | |
4827 | ||
4828 | case 'i': | |
d1bd0ded GK |
4829 | if (combine_inputs) |
4830 | { | |
5a691e98 RAE |
4831 | if (at_file_supplied) |
4832 | { | |
4833 | /* We are going to expand `%i' to `@FILE', where FILE | |
4834 | is a newly-created temporary filename. The filenames | |
4835 | that would usually be expanded in place of %o will be | |
4836 | written to the temporary file. */ | |
4837 | char **argv; | |
4838 | int n_files = 0; | |
4839 | int j; | |
4840 | ||
4841 | for (i = 0; i < n_infiles; i++) | |
4842 | if (compile_input_file_p (&infiles[i])) | |
4843 | n_files++; | |
4844 | ||
4845 | argv = (char **) alloca (sizeof (char *) * (n_files + 1)); | |
4846 | ||
4847 | /* Copy the strings over. */ | |
4848 | for (i = 0, j = 0; i < n_infiles; i++) | |
4849 | if (compile_input_file_p (&infiles[i])) | |
4850 | { | |
4851 | argv[j] = CONST_CAST (char *, infiles[i].name); | |
4852 | infiles[i].compiled = true; | |
4853 | j++; | |
4854 | } | |
4855 | argv[j] = NULL; | |
4856 | ||
4857 | create_at_file (argv); | |
4858 | } | |
4859 | else | |
4860 | for (i = 0; (int) i < n_infiles; i++) | |
4861 | if (compile_input_file_p (&infiles[i])) | |
0855eab7 CT |
4862 | { |
4863 | store_arg (infiles[i].name, 0, 0); | |
4864 | infiles[i].compiled = true; | |
4865 | } | |
d1bd0ded GK |
4866 | } |
4867 | else | |
4868 | { | |
6afbc885 JM |
4869 | obstack_grow (&obstack, gcc_input_filename, |
4870 | input_filename_length); | |
d1bd0ded GK |
4871 | arg_going = 1; |
4872 | } | |
ed1f651b RS |
4873 | break; |
4874 | ||
8eebb258 | 4875 | case 'I': |
2d879387 | 4876 | { |
00dcee0c | 4877 | struct spec_path_info info; |
2d879387 | 4878 | |
2b6dd222 JM |
4879 | if (multilib_dir) |
4880 | { | |
4881 | do_spec_1 ("-imultilib", 1, NULL); | |
4882 | /* Make this a separate argument. */ | |
4883 | do_spec_1 (" ", 0, NULL); | |
4884 | do_spec_1 (multilib_dir, 1, NULL); | |
4885 | do_spec_1 (" ", 0, NULL); | |
4886 | } | |
4887 | ||
2d879387 JW |
4888 | if (gcc_exec_prefix) |
4889 | { | |
6496a589 | 4890 | do_spec_1 ("-iprefix", 1, NULL); |
2d879387 | 4891 | /* Make this a separate argument. */ |
6496a589 KG |
4892 | do_spec_1 (" ", 0, NULL); |
4893 | do_spec_1 (gcc_exec_prefix, 1, NULL); | |
4894 | do_spec_1 (" ", 0, NULL); | |
2d879387 JW |
4895 | } |
4896 | ||
e7f13528 GP |
4897 | if (target_system_root_changed || |
4898 | (target_system_root && target_sysroot_hdrs_suffix)) | |
047d636f DJ |
4899 | { |
4900 | do_spec_1 ("-isysroot", 1, NULL); | |
4901 | /* Make this a separate argument. */ | |
4902 | do_spec_1 (" ", 0, NULL); | |
4903 | do_spec_1 (target_system_root, 1, NULL); | |
e7f13528 GP |
4904 | if (target_sysroot_hdrs_suffix) |
4905 | do_spec_1 (target_sysroot_hdrs_suffix, 1, NULL); | |
047d636f DJ |
4906 | do_spec_1 (" ", 0, NULL); |
4907 | } | |
4908 | ||
00dcee0c AM |
4909 | info.option = "-isystem"; |
4910 | info.append = "include"; | |
4911 | info.append_len = strlen (info.append); | |
4912 | info.omit_relative = false; | |
4913 | info.separate_options = true; | |
4914 | ||
4915 | for_each_path (&include_prefixes, false, info.append_len, | |
4916 | spec_path, &info); | |
f686ec05 JM |
4917 | |
4918 | info.append = "include-fixed"; | |
14da6073 JM |
4919 | if (*sysroot_hdrs_suffix_spec) |
4920 | info.append = concat (info.append, dir_separator_str, | |
4921 | multilib_dir, NULL); | |
f686ec05 JM |
4922 | info.append_len = strlen (info.append); |
4923 | for_each_path (&include_prefixes, false, info.append_len, | |
4924 | spec_path, &info); | |
2d879387 | 4925 | } |
8eebb258 RS |
4926 | break; |
4927 | ||
ed1f651b | 4928 | case 'o': |
15c5edb9 TT |
4929 | { |
4930 | int max = n_infiles; | |
15c5edb9 | 4931 | max += lang_specific_extra_outfiles; |
08dc830e | 4932 | |
2091ff66 NF |
4933 | if (HAVE_GNU_LD && at_file_supplied) |
4934 | { | |
4935 | /* We are going to expand `%o' to `@FILE', where FILE | |
4936 | is a newly-created temporary filename. The filenames | |
4937 | that would usually be expanded in place of %o will be | |
4938 | written to the temporary file. */ | |
4939 | ||
2091ff66 | 4940 | char **argv; |
5a691e98 | 4941 | int n_files, j; |
2091ff66 NF |
4942 | |
4943 | /* Convert OUTFILES into a form suitable for writeargv. */ | |
4944 | ||
4945 | /* Determine how many are non-NULL. */ | |
4946 | for (n_files = 0, i = 0; i < max; i++) | |
4947 | n_files += outfiles[i] != NULL; | |
4948 | ||
e1e4cdc4 | 4949 | argv = (char **) alloca (sizeof (char *) * (n_files + 1)); |
2091ff66 NF |
4950 | |
4951 | /* Copy the strings over. */ | |
4952 | for (i = 0, j = 0; i < max; i++) | |
4953 | if (outfiles[i]) | |
4954 | { | |
b1d5455a | 4955 | argv[j] = CONST_CAST (char *, outfiles[i]); |
2091ff66 NF |
4956 | j++; |
4957 | } | |
4958 | argv[j] = NULL; | |
4959 | ||
5a691e98 | 4960 | create_at_file (argv); |
2091ff66 NF |
4961 | } |
4962 | else | |
4963 | for (i = 0; i < max; i++) | |
4964 | if (outfiles[i]) | |
4965 | store_arg (outfiles[i], 0, 0); | |
15c5edb9 TT |
4966 | break; |
4967 | } | |
ed1f651b | 4968 | |
ed7dae04 | 4969 | case 'O': |
45936a85 | 4970 | obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX)); |
ed7dae04 RK |
4971 | arg_going = 1; |
4972 | break; | |
4973 | ||
ed1f651b RS |
4974 | case 's': |
4975 | this_is_library_file = 1; | |
4976 | break; | |
4977 | ||
3beb864c NC |
4978 | case 'T': |
4979 | this_is_linker_script = 1; | |
4980 | break; | |
4981 | ||
17211ab5 GK |
4982 | case 'V': |
4983 | outfiles[input_file_number] = NULL; | |
4984 | break; | |
4985 | ||
ed1f651b RS |
4986 | case 'w': |
4987 | this_is_output_file = 1; | |
4988 | break; | |
4989 | ||
4990 | case 'W': | |
4991 | { | |
5b634ee0 | 4992 | unsigned int cur_index = VEC_length (const_char_p, argbuf); |
ed1f651b RS |
4993 | /* Handle the {...} following the %W. */ |
4994 | if (*p != '{') | |
bdc6b402 | 4995 | fatal_error ("spec %qs has invalid %<%%W%c%>", spec, *p); |
ed1f651b RS |
4996 | p = handle_braces (p + 1); |
4997 | if (p == 0) | |
4998 | return -1; | |
13e7cedb | 4999 | end_going_arg (); |
ed1f651b RS |
5000 | /* If any args were output, mark the last one for deletion |
5001 | on failure. */ | |
5b634ee0 JM |
5002 | if (VEC_length (const_char_p, argbuf) != cur_index) |
5003 | record_temp_file (VEC_last (const_char_p, argbuf), 0, 1); | |
ed1f651b RS |
5004 | break; |
5005 | } | |
5006 | ||
5007 | /* %x{OPTION} records OPTION for %X to output. */ | |
5008 | case 'x': | |
5009 | { | |
878f32c3 | 5010 | const char *p1 = p; |
ed1f651b | 5011 | char *string; |
69d540bd NF |
5012 | char *opt; |
5013 | unsigned ix; | |
ed1f651b RS |
5014 | |
5015 | /* Skip past the option value and make a copy. */ | |
5016 | if (*p != '{') | |
bdc6b402 | 5017 | fatal_error ("spec %qs has invalid %<%%x%c%>", spec, *p); |
ed1f651b RS |
5018 | while (*p++ != '}') |
5019 | ; | |
5020 | string = save_string (p1 + 1, p - p1 - 2); | |
5021 | ||
5022 | /* See if we already recorded this option. */ | |
69d540bd NF |
5023 | FOR_EACH_VEC_ELT (char_p, linker_options, ix, opt) |
5024 | if (! strcmp (string, opt)) | |
ed1f651b RS |
5025 | { |
5026 | free (string); | |
5027 | return 0; | |
5028 | } | |
5029 | ||
5030 | /* This option is new; add it. */ | |
b8468bc7 | 5031 | add_linker_option (string, strlen (string)); |
ed1f651b RS |
5032 | } |
5033 | break; | |
5034 | ||
368dfd3a | 5035 | /* Dump out the options accumulated previously using %x. */ |
ed1f651b | 5036 | case 'X': |
69d540bd | 5037 | do_specs_vec (linker_options); |
ed1f651b RS |
5038 | break; |
5039 | ||
c9ebacb8 RS |
5040 | /* Dump out the options accumulated previously using -Wa,. */ |
5041 | case 'Y': | |
69d540bd | 5042 | do_specs_vec (assembler_options); |
c9ebacb8 RS |
5043 | break; |
5044 | ||
57cb9b60 JW |
5045 | /* Dump out the options accumulated previously using -Wp,. */ |
5046 | case 'Z': | |
69d540bd | 5047 | do_specs_vec (preprocessor_options); |
57cb9b60 JW |
5048 | break; |
5049 | ||
ed1f651b RS |
5050 | /* Here are digits and numbers that just process |
5051 | a certain constant string as a spec. */ | |
5052 | ||
5053 | case '1': | |
6496a589 | 5054 | value = do_spec_1 (cc1_spec, 0, NULL); |
3279bba6 RS |
5055 | if (value != 0) |
5056 | return value; | |
ed1f651b RS |
5057 | break; |
5058 | ||
5059 | case '2': | |
6496a589 | 5060 | value = do_spec_1 (cc1plus_spec, 0, NULL); |
3279bba6 RS |
5061 | if (value != 0) |
5062 | return value; | |
ed1f651b RS |
5063 | break; |
5064 | ||
5065 | case 'a': | |
6496a589 | 5066 | value = do_spec_1 (asm_spec, 0, NULL); |
3279bba6 RS |
5067 | if (value != 0) |
5068 | return value; | |
ed1f651b RS |
5069 | break; |
5070 | ||
5071 | case 'A': | |
6496a589 | 5072 | value = do_spec_1 (asm_final_spec, 0, NULL); |
3279bba6 RS |
5073 | if (value != 0) |
5074 | return value; | |
ed1f651b RS |
5075 | break; |
5076 | ||
ed1f651b | 5077 | case 'C': |
a9374841 | 5078 | { |
83182544 | 5079 | const char *const spec |
589005ff KH |
5080 | = (input_file_compiler->cpp_spec |
5081 | ? input_file_compiler->cpp_spec | |
a9374841 | 5082 | : cpp_spec); |
6496a589 | 5083 | value = do_spec_1 (spec, 0, NULL); |
a9374841 MM |
5084 | if (value != 0) |
5085 | return value; | |
5086 | } | |
ed1f651b RS |
5087 | break; |
5088 | ||
5089 | case 'E': | |
6496a589 | 5090 | value = do_spec_1 (endfile_spec, 0, NULL); |
3279bba6 RS |
5091 | if (value != 0) |
5092 | return value; | |
ed1f651b RS |
5093 | break; |
5094 | ||
5095 | case 'l': | |
6496a589 | 5096 | value = do_spec_1 (link_spec, 0, NULL); |
3279bba6 RS |
5097 | if (value != 0) |
5098 | return value; | |
ed1f651b RS |
5099 | break; |
5100 | ||
5101 | case 'L': | |
6496a589 | 5102 | value = do_spec_1 (lib_spec, 0, NULL); |
3279bba6 RS |
5103 | if (value != 0) |
5104 | return value; | |
ed1f651b RS |
5105 | break; |
5106 | ||
68d69835 | 5107 | case 'G': |
6496a589 | 5108 | value = do_spec_1 (libgcc_spec, 0, NULL); |
68d69835 JM |
5109 | if (value != 0) |
5110 | return value; | |
5111 | break; | |
5112 | ||
4977bab6 ZW |
5113 | case 'R': |
5114 | /* We assume there is a directory | |
5115 | separator at the end of this string. */ | |
5116 | if (target_system_root) | |
1d088dee AJ |
5117 | { |
5118 | obstack_grow (&obstack, target_system_root, | |
e7f13528 GP |
5119 | strlen (target_system_root)); |
5120 | if (target_sysroot_suffix) | |
1d088dee | 5121 | obstack_grow (&obstack, target_sysroot_suffix, |
e7f13528 GP |
5122 | strlen (target_sysroot_suffix)); |
5123 | } | |
4977bab6 ZW |
5124 | break; |
5125 | ||
ed1f651b | 5126 | case 'S': |
6496a589 | 5127 | value = do_spec_1 (startfile_spec, 0, NULL); |
3279bba6 RS |
5128 | if (value != 0) |
5129 | return value; | |
ed1f651b RS |
5130 | break; |
5131 | ||
5132 | /* Here we define characters other than letters and digits. */ | |
5133 | ||
5134 | case '{': | |
5135 | p = handle_braces (p); | |
5136 | if (p == 0) | |
5137 | return -1; | |
5138 | break; | |
5139 | ||
f3226a90 JT |
5140 | case ':': |
5141 | p = handle_spec_function (p); | |
5142 | if (p == 0) | |
5143 | return -1; | |
5144 | break; | |
5145 | ||
ed1f651b RS |
5146 | case '%': |
5147 | obstack_1grow (&obstack, '%'); | |
5148 | break; | |
5149 | ||
589005ff KH |
5150 | case '.': |
5151 | { | |
5152 | unsigned len = 0; | |
11972f66 | 5153 | |
589005ff KH |
5154 | while (p[len] && p[len] != ' ' && p[len] != '%') |
5155 | len++; | |
5156 | suffix_subst = save_string (p - 1, len + 1); | |
5157 | p += len; | |
5158 | } | |
11972f66 | 5159 | break; |
589005ff | 5160 | |
4977bab6 ZW |
5161 | /* Henceforth ignore the option(s) matching the pattern |
5162 | after the %<. */ | |
5163 | case '<': | |
96f5b137 | 5164 | case '>': |
4977bab6 ZW |
5165 | { |
5166 | unsigned len = 0; | |
5167 | int have_wildcard = 0; | |
5168 | int i; | |
96f5b137 L |
5169 | int switch_option; |
5170 | ||
5171 | if (c == '>') | |
5172 | switch_option = SWITCH_IGNORE | SWITCH_KEEP_FOR_GCC; | |
5173 | else | |
5174 | switch_option = SWITCH_IGNORE; | |
4977bab6 ZW |
5175 | |
5176 | while (p[len] && p[len] != ' ' && p[len] != '\t') | |
5177 | len++; | |
5178 | ||
5179 | if (p[len-1] == '*') | |
5180 | have_wildcard = 1; | |
5181 | ||
5182 | for (i = 0; i < n_switches; i++) | |
5183 | if (!strncmp (switches[i].part1, p, len - have_wildcard) | |
5184 | && (have_wildcard || switches[i].part1[len] == '\0')) | |
5185 | { | |
96f5b137 | 5186 | switches[i].live_cond |= switch_option; |
4977bab6 ZW |
5187 | switches[i].validated = 1; |
5188 | } | |
5189 | ||
5190 | p += len; | |
5191 | } | |
5192 | break; | |
5193 | ||
ed1f651b | 5194 | case '*': |
3ac63d94 NC |
5195 | if (soft_matched_part) |
5196 | { | |
7fcf46f5 JZ |
5197 | if (soft_matched_part[0]) |
5198 | do_spec_1 (soft_matched_part, 1, NULL); | |
6496a589 | 5199 | do_spec_1 (" ", 0, NULL); |
3ac63d94 NC |
5200 | } |
5201 | else | |
5202 | /* Catch the case where a spec string contains something like | |
454ff5cb | 5203 | '%{foo:%*}'. i.e. there is no * in the pattern on the left |
3ac63d94 | 5204 | hand side of the :. */ |
bdc6b402 | 5205 | error ("spec failure: %<%%*%> has not been initialized by pattern match"); |
ed1f651b RS |
5206 | break; |
5207 | ||
5208 | /* Process a string found as the value of a spec given by name. | |
5209 | This feature allows individual machine descriptions | |
4089dfab JL |
5210 | to add and use their own specs. |
5211 | %[...] modifies -D options the way %P does; | |
5212 | %(...) uses the spec unmodified. */ | |
5213 | case '[': | |
2dec80c7 | 5214 | warning (0, "use of obsolete %%[ operator in specs"); |
ed1f651b | 5215 | case '(': |
ed1f651b | 5216 | { |
878f32c3 | 5217 | const char *name = p; |
ed1f651b RS |
5218 | struct spec_list *sl; |
5219 | int len; | |
5220 | ||
5221 | /* The string after the S/P is the name of a spec that is to be | |
0f41302f | 5222 | processed. */ |
4089dfab | 5223 | while (*p && *p != ')' && *p != ']') |
ed1f651b RS |
5224 | p++; |
5225 | ||
3ac63d94 | 5226 | /* See if it's in the list. */ |
ed1f651b | 5227 | for (len = p - name, sl = specs; sl; sl = sl->next) |
79aff5ac | 5228 | if (sl->name_len == len && !strncmp (sl->name, name, len)) |
ed1f651b | 5229 | { |
79aff5ac | 5230 | name = *(sl->ptr_spec); |
20df0482 | 5231 | #ifdef DEBUG_SPECS |
2dec80c7 | 5232 | fnotice (stderr, "Processing spec %c%s%c, which is '%s'\n", |
ab87f8c8 | 5233 | c, sl->name, (c == '(') ? ')' : ']', name); |
20df0482 | 5234 | #endif |
ed1f651b RS |
5235 | break; |
5236 | } | |
5237 | ||
5238 | if (sl) | |
5239 | { | |
4089dfab JL |
5240 | if (c == '(') |
5241 | { | |
6496a589 | 5242 | value = do_spec_1 (name, 0, NULL); |
4089dfab JL |
5243 | if (value != 0) |
5244 | return value; | |
5245 | } | |
5246 | else | |
5247 | { | |
e1e4cdc4 | 5248 | char *x = (char *) alloca (strlen (name) * 2 + 1); |
4089dfab | 5249 | char *buf = x; |
878f32c3 | 5250 | const char *y = name; |
4089dfab JL |
5251 | int flag = 0; |
5252 | ||
5253 | /* Copy all of NAME into BUF, but put __ after | |
3ac63d94 | 5254 | every -D and at the end of each arg. */ |
4089dfab JL |
5255 | while (1) |
5256 | { | |
5257 | if (! strncmp (y, "-D", 2)) | |
5258 | { | |
5259 | *x++ = '-'; | |
5260 | *x++ = 'D'; | |
5261 | *x++ = '_'; | |
5262 | *x++ = '_'; | |
5263 | y += 2; | |
5264 | flag = 1; | |
5265 | continue; | |
5266 | } | |
d25a45d4 KH |
5267 | else if (flag |
5268 | && (*y == ' ' || *y == '\t' || *y == '=' | |
5269 | || *y == '}' || *y == 0)) | |
4089dfab JL |
5270 | { |
5271 | *x++ = '_'; | |
5272 | *x++ = '_'; | |
5273 | flag = 0; | |
5274 | } | |
d25a45d4 | 5275 | if (*y == 0) |
4089dfab JL |
5276 | break; |
5277 | else | |
5278 | *x++ = *y++; | |
5279 | } | |
5280 | *x = 0; | |
5281 | ||
6496a589 | 5282 | value = do_spec_1 (buf, 0, NULL); |
4089dfab JL |
5283 | if (value != 0) |
5284 | return value; | |
5285 | } | |
ed1f651b | 5286 | } |
b3865ca9 | 5287 | |
4089dfab | 5288 | /* Discard the closing paren or bracket. */ |
b3865ca9 RS |
5289 | if (*p) |
5290 | p++; | |
ed1f651b RS |
5291 | } |
5292 | break; | |
5293 | ||
5294 | default: | |
bdc6b402 | 5295 | error ("spec failure: unrecognized spec option %qc", c); |
3ac63d94 | 5296 | break; |
ed1f651b RS |
5297 | } |
5298 | break; | |
5299 | ||
5300 | case '\\': | |
5301 | /* Backslash: treat next character as ordinary. */ | |
5302 | c = *p++; | |
5303 | ||
938d968e | 5304 | /* Fall through. */ |
ed1f651b RS |
5305 | default: |
5306 | /* Ordinary character: put it into the current argument. */ | |
5307 | obstack_1grow (&obstack, c); | |
5308 | arg_going = 1; | |
5309 | } | |
5310 | ||
f3226a90 JT |
5311 | /* End of string. If we are processing a spec function, we need to |
5312 | end any pending argument. */ | |
13e7cedb DH |
5313 | if (processing_spec_function) |
5314 | end_going_arg (); | |
f3226a90 | 5315 | |
d25a45d4 | 5316 | return 0; |
ed1f651b RS |
5317 | } |
5318 | ||
f3226a90 JT |
5319 | /* Look up a spec function. */ |
5320 | ||
5321 | static const struct spec_function * | |
1d088dee | 5322 | lookup_spec_function (const char *name) |
f3226a90 | 5323 | { |
f3226a90 | 5324 | const struct spec_function *sf; |
f3226a90 | 5325 | |
4c360e1f RE |
5326 | for (sf = static_spec_functions; sf->name != NULL; sf++) |
5327 | if (strcmp (sf->name, name) == 0) | |
5328 | return sf; | |
f3226a90 JT |
5329 | |
5330 | return NULL; | |
5331 | } | |
5332 | ||
5333 | /* Evaluate a spec function. */ | |
5334 | ||
5335 | static const char * | |
1d088dee | 5336 | eval_spec_function (const char *func, const char *args) |
f3226a90 JT |
5337 | { |
5338 | const struct spec_function *sf; | |
5339 | const char *funcval; | |
5340 | ||
5341 | /* Saved spec processing context. */ | |
5b634ee0 | 5342 | VEC(const_char_p,heap) *save_argbuf; |
f3226a90 JT |
5343 | |
5344 | int save_arg_going; | |
5345 | int save_delete_this_arg; | |
5346 | int save_this_is_output_file; | |
5347 | int save_this_is_library_file; | |
5348 | int save_input_from_pipe; | |
3beb864c | 5349 | int save_this_is_linker_script; |
f3226a90 JT |
5350 | const char *save_suffix_subst; |
5351 | ||
5352 | ||
5353 | sf = lookup_spec_function (func); | |
5354 | if (sf == NULL) | |
bdc6b402 | 5355 | fatal_error ("unknown spec function %qs", func); |
f3226a90 JT |
5356 | |
5357 | /* Push the spec processing context. */ | |
f3226a90 JT |
5358 | save_argbuf = argbuf; |
5359 | ||
5360 | save_arg_going = arg_going; | |
5361 | save_delete_this_arg = delete_this_arg; | |
5362 | save_this_is_output_file = this_is_output_file; | |
5363 | save_this_is_library_file = this_is_library_file; | |
3beb864c | 5364 | save_this_is_linker_script = this_is_linker_script; |
f3226a90 JT |
5365 | save_input_from_pipe = input_from_pipe; |
5366 | save_suffix_subst = suffix_subst; | |
5367 | ||
5368 | /* Create a new spec processing context, and build the function | |
5369 | arguments. */ | |
5370 | ||
5371 | alloc_args (); | |
5372 | if (do_spec_2 (args) < 0) | |
bdc6b402 | 5373 | fatal_error ("error in args to spec function %qs", func); |
f3226a90 JT |
5374 | |
5375 | /* argbuf_index is an index for the next argument to be inserted, and | |
5376 | so contains the count of the args already inserted. */ | |
5377 | ||
5b634ee0 JM |
5378 | funcval = (*sf->func) (VEC_length (const_char_p, argbuf), |
5379 | VEC_address (const_char_p, argbuf)); | |
f3226a90 JT |
5380 | |
5381 | /* Pop the spec processing context. */ | |
5b634ee0 | 5382 | VEC_free (const_char_p, heap, argbuf); |
f3226a90 JT |
5383 | argbuf = save_argbuf; |
5384 | ||
5385 | arg_going = save_arg_going; | |
5386 | delete_this_arg = save_delete_this_arg; | |
5387 | this_is_output_file = save_this_is_output_file; | |
5388 | this_is_library_file = save_this_is_library_file; | |
3beb864c | 5389 | this_is_linker_script = save_this_is_linker_script; |
f3226a90 JT |
5390 | input_from_pipe = save_input_from_pipe; |
5391 | suffix_subst = save_suffix_subst; | |
5392 | ||
5393 | return funcval; | |
5394 | } | |
5395 | ||
5396 | /* Handle a spec function call of the form: | |
5397 | ||
5398 | %:function(args) | |
5399 | ||
5400 | ARGS is processed as a spec in a separate context and split into an | |
5401 | argument vector in the normal fashion. The function returns a string | |
5402 | containing a spec which we then process in the caller's context, or | |
5403 | NULL if no processing is required. */ | |
5404 | ||
5405 | static const char * | |
1d088dee | 5406 | handle_spec_function (const char *p) |
f3226a90 JT |
5407 | { |
5408 | char *func, *args; | |
5409 | const char *endp, *funcval; | |
5410 | int count; | |
5411 | ||
5412 | processing_spec_function++; | |
5413 | ||
5414 | /* Get the function name. */ | |
5415 | for (endp = p; *endp != '\0'; endp++) | |
5416 | { | |
5417 | if (*endp == '(') /* ) */ | |
5418 | break; | |
5419 | /* Only allow [A-Za-z0-9], -, and _ in function names. */ | |
5420 | if (!ISALNUM (*endp) && !(*endp == '-' || *endp == '_')) | |
2dec80c7 | 5421 | fatal_error ("malformed spec function name"); |
f3226a90 JT |
5422 | } |
5423 | if (*endp != '(') /* ) */ | |
2dec80c7 | 5424 | fatal_error ("no arguments for spec function"); |
f3226a90 JT |
5425 | func = save_string (p, endp - p); |
5426 | p = ++endp; | |
5427 | ||
5428 | /* Get the arguments. */ | |
5429 | for (count = 0; *endp != '\0'; endp++) | |
5430 | { | |
5431 | /* ( */ | |
5432 | if (*endp == ')') | |
5433 | { | |
5434 | if (count == 0) | |
5435 | break; | |
5436 | count--; | |
5437 | } | |
5438 | else if (*endp == '(') /* ) */ | |
5439 | count++; | |
5440 | } | |
5441 | /* ( */ | |
5442 | if (*endp != ')') | |
2dec80c7 | 5443 | fatal_error ("malformed spec function arguments"); |
f3226a90 JT |
5444 | args = save_string (p, endp - p); |
5445 | p = ++endp; | |
5446 | ||
5447 | /* p now points to just past the end of the spec function expression. */ | |
5448 | ||
5449 | funcval = eval_spec_function (func, args); | |
5450 | if (funcval != NULL && do_spec_1 (funcval, 0, NULL) < 0) | |
5451 | p = NULL; | |
5452 | ||
5453 | free (func); | |
5454 | free (args); | |
5455 | ||
5456 | processing_spec_function--; | |
5457 | ||
5458 | return p; | |
5459 | } | |
5460 | ||
4977bab6 ZW |
5461 | /* Inline subroutine of handle_braces. Returns true if the current |
5462 | input suffix matches the atom bracketed by ATOM and END_ATOM. */ | |
5463 | static inline bool | |
1d088dee | 5464 | input_suffix_matches (const char *atom, const char *end_atom) |
4977bab6 ZW |
5465 | { |
5466 | return (input_suffix | |
5467 | && !strncmp (input_suffix, atom, end_atom - atom) | |
5468 | && input_suffix[end_atom - atom] == '\0'); | |
5469 | } | |
ed1f651b | 5470 | |
48137d59 GK |
5471 | /* Subroutine of handle_braces. Returns true if the current |
5472 | input file's spec name matches the atom bracketed by ATOM and END_ATOM. */ | |
5473 | static bool | |
5474 | input_spec_matches (const char *atom, const char *end_atom) | |
5475 | { | |
5476 | return (input_file_compiler | |
5477 | && input_file_compiler->suffix | |
5478 | && input_file_compiler->suffix[0] != '\0' | |
5479 | && !strncmp (input_file_compiler->suffix + 1, atom, | |
5480 | end_atom - atom) | |
5481 | && input_file_compiler->suffix[end_atom - atom + 1] == '\0'); | |
5482 | } | |
5483 | ||
953ff289 | 5484 | /* Subroutine of handle_braces. Returns true if a switch |
4977bab6 ZW |
5485 | matching the atom bracketed by ATOM and END_ATOM appeared on the |
5486 | command line. */ | |
953ff289 | 5487 | static bool |
1d088dee | 5488 | switch_matches (const char *atom, const char *end_atom, int starred) |
ed1f651b | 5489 | { |
4977bab6 ZW |
5490 | int i; |
5491 | int len = end_atom - atom; | |
5492 | int plen = starred ? len : -1; | |
ed1f651b | 5493 | |
4977bab6 ZW |
5494 | for (i = 0; i < n_switches; i++) |
5495 | if (!strncmp (switches[i].part1, atom, len) | |
5496 | && (starred || switches[i].part1[len] == '\0') | |
5497 | && check_live_switch (i, plen)) | |
5498 | return true; | |
8097c429 | 5499 | |
4977bab6 ZW |
5500 | return false; |
5501 | } | |
ed1f651b | 5502 | |
4977bab6 ZW |
5503 | /* Inline subroutine of handle_braces. Mark all of the switches which |
5504 | match ATOM (extends to END_ATOM; STARRED indicates whether there | |
5505 | was a star after the atom) for later processing. */ | |
5506 | static inline void | |
1d088dee | 5507 | mark_matching_switches (const char *atom, const char *end_atom, int starred) |
4977bab6 ZW |
5508 | { |
5509 | int i; | |
5510 | int len = end_atom - atom; | |
5511 | int plen = starred ? len : -1; | |
5512 | ||
5513 | for (i = 0; i < n_switches; i++) | |
5514 | if (!strncmp (switches[i].part1, atom, len) | |
5515 | && (starred || switches[i].part1[len] == '\0') | |
5516 | && check_live_switch (i, plen)) | |
5517 | switches[i].ordering = 1; | |
5518 | } | |
9bf09437 | 5519 | |
4977bab6 ZW |
5520 | /* Inline subroutine of handle_braces. Process all the currently |
5521 | marked switches through give_switch, and clear the marks. */ | |
5522 | static inline void | |
1d088dee | 5523 | process_marked_switches (void) |
4977bab6 ZW |
5524 | { |
5525 | int i; | |
ed1f651b | 5526 | |
4977bab6 ZW |
5527 | for (i = 0; i < n_switches; i++) |
5528 | if (switches[i].ordering == 1) | |
5529 | { | |
5530 | switches[i].ordering = 0; | |
5531 | give_switch (i, 0); | |
5532 | } | |
5533 | } | |
ed1f651b | 5534 | |
4977bab6 ZW |
5535 | /* Handle a %{ ... } construct. P points just inside the leading {. |
5536 | Returns a pointer one past the end of the brace block, or 0 | |
5537 | if we call do_spec_1 and that returns -1. */ | |
ed1f651b | 5538 | |
4977bab6 | 5539 | static const char * |
1d088dee | 5540 | handle_braces (const char *p) |
4977bab6 ZW |
5541 | { |
5542 | const char *atom, *end_atom; | |
5543 | const char *d_atom = NULL, *d_end_atom = NULL; | |
3b5edfee | 5544 | const char *orig = p; |
8097c429 | 5545 | |
4977bab6 | 5546 | bool a_is_suffix; |
48137d59 | 5547 | bool a_is_spectype; |
4977bab6 ZW |
5548 | bool a_is_starred; |
5549 | bool a_is_negated; | |
5550 | bool a_matched; | |
9bf09437 | 5551 | |
4977bab6 ZW |
5552 | bool a_must_be_last = false; |
5553 | bool ordered_set = false; | |
5554 | bool disjunct_set = false; | |
5555 | bool disj_matched = false; | |
5556 | bool disj_starred = true; | |
5557 | bool n_way_choice = false; | |
5558 | bool n_way_matched = false; | |
5559 | ||
5560 | #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0) | |
9bf09437 | 5561 | |
4977bab6 | 5562 | do |
ed1f651b | 5563 | { |
4977bab6 | 5564 | if (a_must_be_last) |
3b5edfee | 5565 | goto invalid; |
9bf09437 | 5566 | |
4977bab6 | 5567 | /* Scan one "atom" (S in the description above of %{}, possibly |
48137d59 GK |
5568 | with '!', '.', '@', ',', or '*' modifiers). */ |
5569 | a_matched = false; | |
5570 | a_is_suffix = false; | |
5571 | a_is_starred = false; | |
5572 | a_is_negated = false; | |
5573 | a_is_spectype = false; | |
9218435e | 5574 | |
4977bab6 ZW |
5575 | SKIP_WHITE(); |
5576 | if (*p == '!') | |
5577 | p++, a_is_negated = true; | |
ed1f651b | 5578 | |
4977bab6 ZW |
5579 | SKIP_WHITE(); |
5580 | if (*p == '.') | |
5581 | p++, a_is_suffix = true; | |
48137d59 GK |
5582 | else if (*p == ',') |
5583 | p++, a_is_spectype = true; | |
ed1f651b | 5584 | |
4977bab6 ZW |
5585 | atom = p; |
5586 | while (ISIDNUM(*p) || *p == '-' || *p == '+' || *p == '=' | |
cde26509 | 5587 | || *p == ',' || *p == '.' || *p == '@') |
4977bab6 ZW |
5588 | p++; |
5589 | end_atom = p; | |
ed1f651b | 5590 | |
4977bab6 ZW |
5591 | if (*p == '*') |
5592 | p++, a_is_starred = 1; | |
196a37f4 | 5593 | |
4977bab6 | 5594 | SKIP_WHITE(); |
3b5edfee | 5595 | switch (*p) |
4977bab6 | 5596 | { |
3b5edfee | 5597 | case '&': case '}': |
4977bab6 ZW |
5598 | /* Substitute the switch(es) indicated by the current atom. */ |
5599 | ordered_set = true; | |
5600 | if (disjunct_set || n_way_choice || a_is_negated || a_is_suffix | |
48137d59 | 5601 | || a_is_spectype || atom == end_atom) |
3b5edfee | 5602 | goto invalid; |
ed1f651b | 5603 | |
4977bab6 ZW |
5604 | mark_matching_switches (atom, end_atom, a_is_starred); |
5605 | ||
5606 | if (*p == '}') | |
5607 | process_marked_switches (); | |
3b5edfee NS |
5608 | break; |
5609 | ||
5610 | case '|': case ':': | |
4977bab6 ZW |
5611 | /* Substitute some text if the current atom appears as a switch |
5612 | or suffix. */ | |
5613 | disjunct_set = true; | |
5614 | if (ordered_set) | |
3b5edfee | 5615 | goto invalid; |
ed1f651b | 5616 | |
4977bab6 | 5617 | if (atom == end_atom) |
ed1f651b | 5618 | { |
4977bab6 | 5619 | if (!n_way_choice || disj_matched || *p == '|' |
b8698a0f | 5620 | || a_is_negated || a_is_suffix || a_is_spectype |
48137d59 | 5621 | || a_is_starred) |
3b5edfee | 5622 | goto invalid; |
4977bab6 ZW |
5623 | |
5624 | /* An empty term may appear as the last choice of an | |
5625 | N-way choice set; it means "otherwise". */ | |
5626 | a_must_be_last = true; | |
5627 | disj_matched = !n_way_matched; | |
5628 | disj_starred = false; | |
ed1f651b | 5629 | } |
4977bab6 | 5630 | else |
ed1f651b | 5631 | { |
48137d59 GK |
5632 | if ((a_is_suffix || a_is_spectype) && a_is_starred) |
5633 | goto invalid; | |
3beb864c | 5634 | |
48137d59 GK |
5635 | if (!a_is_starred) |
5636 | disj_starred = false; | |
5637 | ||
5638 | /* Don't bother testing this atom if we already have a | |
5639 | match. */ | |
5640 | if (!disj_matched && !n_way_matched) | |
5641 | { | |
5642 | if (a_is_suffix) | |
5643 | a_matched = input_suffix_matches (atom, end_atom); | |
5644 | else if (a_is_spectype) | |
5645 | a_matched = input_spec_matches (atom, end_atom); | |
5646 | else | |
5647 | a_matched = switch_matches (atom, end_atom, a_is_starred); | |
3beb864c | 5648 | |
48137d59 GK |
5649 | if (a_matched != a_is_negated) |
5650 | { | |
5651 | disj_matched = true; | |
5652 | d_atom = atom; | |
5653 | d_end_atom = end_atom; | |
5654 | } | |
5655 | } | |
ed1f651b | 5656 | } |
ed1f651b | 5657 | |
4977bab6 | 5658 | if (*p == ':') |
ed1f651b | 5659 | { |
4977bab6 ZW |
5660 | /* Found the body, that is, the text to substitute if the |
5661 | current disjunction matches. */ | |
5662 | p = process_brace_body (p + 1, d_atom, d_end_atom, disj_starred, | |
5663 | disj_matched && !n_way_matched); | |
5664 | if (p == 0) | |
5665 | return 0; | |
ed1f651b | 5666 | |
4977bab6 ZW |
5667 | /* If we have an N-way choice, reset state for the next |
5668 | disjunction. */ | |
5669 | if (*p == ';') | |
ed1f651b | 5670 | { |
4977bab6 ZW |
5671 | n_way_choice = true; |
5672 | n_way_matched |= disj_matched; | |
5673 | disj_matched = false; | |
5674 | disj_starred = true; | |
5675 | d_atom = d_end_atom = NULL; | |
ed1f651b RS |
5676 | } |
5677 | } | |
3b5edfee NS |
5678 | break; |
5679 | ||
5680 | default: | |
5681 | goto invalid; | |
ed1f651b | 5682 | } |
4977bab6 ZW |
5683 | } |
5684 | while (*p++ != '}'); | |
ed1f651b | 5685 | |
4977bab6 | 5686 | return p; |
7904f95f | 5687 | |
3b5edfee | 5688 | invalid: |
bdc6b402 | 5689 | fatal_error ("braced spec %qs is invalid at %qc", orig, *p); |
7904f95f | 5690 | |
4977bab6 ZW |
5691 | #undef SKIP_WHITE |
5692 | } | |
5693 | ||
5694 | /* Subroutine of handle_braces. Scan and process a brace substitution body | |
5695 | (X in the description of %{} syntax). P points one past the colon; | |
5696 | ATOM and END_ATOM bracket the first atom which was found to be true | |
5697 | (present) in the current disjunction; STARRED indicates whether all | |
5698 | the atoms in the current disjunction were starred (for syntax validation); | |
5699 | MATCHED indicates whether the disjunction matched or not, and therefore | |
5700 | whether or not the body is to be processed through do_spec_1 or just | |
5701 | skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1 | |
5702 | returns -1. */ | |
5703 | ||
5704 | static const char * | |
1d088dee AJ |
5705 | process_brace_body (const char *p, const char *atom, const char *end_atom, |
5706 | int starred, int matched) | |
4977bab6 ZW |
5707 | { |
5708 | const char *body, *end_body; | |
5709 | unsigned int nesting_level; | |
5710 | bool have_subst = false; | |
5711 | ||
5712 | /* Locate the closing } or ;, honoring nested braces. | |
5713 | Trim trailing whitespace. */ | |
5714 | body = p; | |
5715 | nesting_level = 1; | |
5716 | for (;;) | |
5717 | { | |
5718 | if (*p == '{') | |
5719 | nesting_level++; | |
5720 | else if (*p == '}') | |
ed1f651b | 5721 | { |
4977bab6 ZW |
5722 | if (!--nesting_level) |
5723 | break; | |
ed1f651b | 5724 | } |
4977bab6 ZW |
5725 | else if (*p == ';' && nesting_level == 1) |
5726 | break; | |
5727 | else if (*p == '%' && p[1] == '*' && nesting_level == 1) | |
5728 | have_subst = true; | |
5729 | else if (*p == '\0') | |
3b5edfee | 5730 | goto invalid; |
4977bab6 | 5731 | p++; |
ed1f651b | 5732 | } |
1d088dee | 5733 | |
4977bab6 ZW |
5734 | end_body = p; |
5735 | while (end_body[-1] == ' ' || end_body[-1] == '\t') | |
5736 | end_body--; | |
ed1f651b | 5737 | |
4977bab6 | 5738 | if (have_subst && !starred) |
3b5edfee | 5739 | goto invalid; |
9bf09437 | 5740 | |
4977bab6 | 5741 | if (matched) |
196a37f4 | 5742 | { |
4977bab6 ZW |
5743 | /* Copy the substitution body to permanent storage and execute it. |
5744 | If have_subst is false, this is a simple matter of running the | |
5745 | body through do_spec_1... */ | |
5746 | char *string = save_string (body, end_body - body); | |
5747 | if (!have_subst) | |
5748 | { | |
5749 | if (do_spec_1 (string, 0, NULL) < 0) | |
5750 | return 0; | |
5751 | } | |
5752 | else | |
5753 | { | |
5754 | /* ... but if have_subst is true, we have to process the | |
5755 | body once for each matching switch, with %* set to the | |
5756 | variant part of the switch. */ | |
5757 | unsigned int hard_match_len = end_atom - atom; | |
5758 | int i; | |
196a37f4 | 5759 | |
4977bab6 ZW |
5760 | for (i = 0; i < n_switches; i++) |
5761 | if (!strncmp (switches[i].part1, atom, hard_match_len) | |
5762 | && check_live_switch (i, hard_match_len)) | |
5763 | { | |
5764 | if (do_spec_1 (string, 0, | |
5765 | &switches[i].part1[hard_match_len]) < 0) | |
5766 | return 0; | |
5767 | /* Pass any arguments this switch has. */ | |
5768 | give_switch (i, 1); | |
5769 | suffix_subst = NULL; | |
5770 | } | |
5771 | } | |
10ebf5fe NB |
5772 | } |
5773 | ||
4977bab6 | 5774 | return p; |
3b5edfee NS |
5775 | |
5776 | invalid: | |
bdc6b402 | 5777 | fatal_error ("braced spec body %qs is invalid", body); |
ed1f651b | 5778 | } |
f5b0eb4e | 5779 | \f |
6c396fb5 RK |
5780 | /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch |
5781 | on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*} | |
5782 | spec, or -1 if either exact match or %* is used. | |
f5b0eb4e RK |
5783 | |
5784 | A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch | |
5785 | whose value does not begin with "no-" is obsoleted by the same value | |
5786 | with the "no-", similarly for a switch with the "no-" prefix. */ | |
5787 | ||
5788 | static int | |
1d088dee | 5789 | check_live_switch (int switchnum, int prefix_length) |
f5b0eb4e | 5790 | { |
878f32c3 | 5791 | const char *name = switches[switchnum].part1; |
f5b0eb4e RK |
5792 | int i; |
5793 | ||
2153915d AO |
5794 | /* If we already processed this switch and determined if it was |
5795 | live or not, return our past determination. */ | |
5796 | if (switches[switchnum].live_cond != 0) | |
5797 | return ((switches[switchnum].live_cond & SWITCH_LIVE) != 0 | |
5798 | && (switches[switchnum].live_cond & SWITCH_FALSE) == 0 | |
94b90527 JJ |
5799 | && (switches[switchnum].live_cond & SWITCH_IGNORE_PERMANENTLY) |
5800 | == 0); | |
2153915d | 5801 | |
6c396fb5 | 5802 | /* In the common case of {<at-most-one-letter>*}, a negating |
f5b0eb4e RK |
5803 | switch would always match, so ignore that case. We will just |
5804 | send the conflicting switches to the compiler phase. */ | |
6c396fb5 | 5805 | if (prefix_length >= 0 && prefix_length <= 1) |
f5b0eb4e RK |
5806 | return 1; |
5807 | ||
f5b0eb4e RK |
5808 | /* Now search for duplicate in a manner that depends on the name. */ |
5809 | switch (*name) | |
5810 | { | |
5811 | case 'O': | |
d25a45d4 KH |
5812 | for (i = switchnum + 1; i < n_switches; i++) |
5813 | if (switches[i].part1[0] == 'O') | |
5814 | { | |
5815 | switches[switchnum].validated = 1; | |
5816 | switches[switchnum].live_cond = SWITCH_FALSE; | |
5817 | return 0; | |
5818 | } | |
f5b0eb4e | 5819 | break; |
ed1f651b | 5820 | |
f5b0eb4e | 5821 | case 'W': case 'f': case 'm': |
6c396fb5 | 5822 | if (! strncmp (name + 1, "no-", 3)) |
f5b0eb4e | 5823 | { |
0f41302f | 5824 | /* We have Xno-YYY, search for XYYY. */ |
f5b0eb4e RK |
5825 | for (i = switchnum + 1; i < n_switches; i++) |
5826 | if (switches[i].part1[0] == name[0] | |
5827 | && ! strcmp (&switches[i].part1[1], &name[4])) | |
d25a45d4 KH |
5828 | { |
5829 | switches[switchnum].validated = 1; | |
5830 | switches[switchnum].live_cond = SWITCH_FALSE; | |
5831 | return 0; | |
5832 | } | |
f5b0eb4e RK |
5833 | } |
5834 | else | |
5835 | { | |
5836 | /* We have XYYY, search for Xno-YYY. */ | |
5837 | for (i = switchnum + 1; i < n_switches; i++) | |
5838 | if (switches[i].part1[0] == name[0] | |
5839 | && switches[i].part1[1] == 'n' | |
5840 | && switches[i].part1[2] == 'o' | |
5841 | && switches[i].part1[3] == '-' | |
5842 | && !strcmp (&switches[i].part1[4], &name[1])) | |
d25a45d4 KH |
5843 | { |
5844 | switches[switchnum].validated = 1; | |
5845 | switches[switchnum].live_cond = SWITCH_FALSE; | |
5846 | return 0; | |
5847 | } | |
f5b0eb4e RK |
5848 | } |
5849 | break; | |
5850 | } | |
5851 | ||
5852 | /* Otherwise the switch is live. */ | |
3371362c | 5853 | switches[switchnum].live_cond |= SWITCH_LIVE; |
f5b0eb4e RK |
5854 | return 1; |
5855 | } | |
5856 | \f | |
ed1f651b RS |
5857 | /* Pass a switch to the current accumulating command |
5858 | in the same form that we received it. | |
5859 | SWITCHNUM identifies the switch; it is an index into | |
5860 | the vector of switches gcc received, which is `switches'. | |
5861 | This cannot fail since it never finishes a command line. | |
5862 | ||
4977bab6 | 5863 | If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */ |
ed1f651b RS |
5864 | |
5865 | static void | |
1d088dee | 5866 | give_switch (int switchnum, int omit_first_word) |
ed1f651b | 5867 | { |
3371362c | 5868 | if ((switches[switchnum].live_cond & SWITCH_IGNORE) != 0) |
8097c429 TT |
5869 | return; |
5870 | ||
ed1f651b RS |
5871 | if (!omit_first_word) |
5872 | { | |
6496a589 KG |
5873 | do_spec_1 ("-", 0, NULL); |
5874 | do_spec_1 (switches[switchnum].part1, 1, NULL); | |
ed1f651b | 5875 | } |
1ba9a487 | 5876 | |
ed1f651b RS |
5877 | if (switches[switchnum].args != 0) |
5878 | { | |
fbd40359 | 5879 | const char **p; |
ed1f651b RS |
5880 | for (p = switches[switchnum].args; *p; p++) |
5881 | { | |
11972f66 NS |
5882 | const char *arg = *p; |
5883 | ||
4977bab6 | 5884 | do_spec_1 (" ", 0, NULL); |
11972f66 NS |
5885 | if (suffix_subst) |
5886 | { | |
5887 | unsigned length = strlen (arg); | |
e65677af | 5888 | int dot = 0; |
11972f66 NS |
5889 | |
5890 | while (length-- && !IS_DIR_SEPARATOR (arg[length])) | |
5891 | if (arg[length] == '.') | |
5892 | { | |
b1d5455a | 5893 | (CONST_CAST(char *, arg))[length] = 0; |
e65677af | 5894 | dot = 1; |
11972f66 NS |
5895 | break; |
5896 | } | |
6496a589 | 5897 | do_spec_1 (arg, 1, NULL); |
e65677af | 5898 | if (dot) |
b1d5455a | 5899 | (CONST_CAST(char *, arg))[length] = '.'; |
e65677af | 5900 | do_spec_1 (suffix_subst, 1, NULL); |
11972f66 NS |
5901 | } |
5902 | else | |
6496a589 | 5903 | do_spec_1 (arg, 1, NULL); |
ed1f651b RS |
5904 | } |
5905 | } | |
1ba9a487 | 5906 | |
6496a589 | 5907 | do_spec_1 (" ", 0, NULL); |
ab87f8c8 | 5908 | switches[switchnum].validated = 1; |
ed1f651b RS |
5909 | } |
5910 | \f | |
5911 | /* Search for a file named NAME trying various prefixes including the | |
5912 | user's -B prefix and some standard ones. | |
5913 | Return the absolute file name found. If nothing is found, return NAME. */ | |
5914 | ||
878f32c3 | 5915 | static const char * |
1d088dee | 5916 | find_file (const char *name) |
ed1f651b | 5917 | { |
00dcee0c | 5918 | char *newname = find_a_file (&startfile_prefixes, name, R_OK, true); |
ed1f651b RS |
5919 | return newname ? newname : name; |
5920 | } | |
5921 | ||
0ad5835e | 5922 | /* Determine whether a directory exists. If LINKER, return 0 for |
00dcee0c | 5923 | certain fixed names not needed by the linker. */ |
ed1f651b RS |
5924 | |
5925 | static int | |
00dcee0c | 5926 | is_directory (const char *path1, bool linker) |
ed1f651b | 5927 | { |
00dcee0c AM |
5928 | int len1; |
5929 | char *path; | |
ed1f651b RS |
5930 | char *cp; |
5931 | struct stat st; | |
5932 | ||
00dcee0c AM |
5933 | /* Ensure the string ends with "/.". The resulting path will be a |
5934 | directory even if the given path is a symbolic link. */ | |
5935 | len1 = strlen (path1); | |
e1e4cdc4 | 5936 | path = (char *) alloca (3 + len1); |
7e2231e7 | 5937 | memcpy (path, path1, len1); |
00dcee0c | 5938 | cp = path + len1; |
509781a4 | 5939 | if (!IS_DIR_SEPARATOR (cp[-1])) |
48ff801b | 5940 | *cp++ = DIR_SEPARATOR; |
ed1f651b RS |
5941 | *cp++ = '.'; |
5942 | *cp = '\0'; | |
5943 | ||
5944 | /* Exclude directories that the linker is known to search. */ | |
0ad5835e | 5945 | if (linker |
00dcee0c | 5946 | && IS_DIR_SEPARATOR (path[0]) |
48ff801b | 5947 | && ((cp - path == 6 |
ba78087b | 5948 | && filename_ncmp (path + 1, "lib", 3) == 0) |
48ff801b | 5949 | || (cp - path == 10 |
ba78087b | 5950 | && filename_ncmp (path + 1, "usr", 3) == 0 |
00dcee0c | 5951 | && IS_DIR_SEPARATOR (path[4]) |
ba78087b | 5952 | && filename_ncmp (path + 5, "lib", 3) == 0))) |
ed1f651b RS |
5953 | return 0; |
5954 | ||
5955 | return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode)); | |
5956 | } | |
512b62fb JM |
5957 | |
5958 | /* Set up the various global variables to indicate that we're processing | |
5959 | the input file named FILENAME. */ | |
5960 | ||
b856c15d | 5961 | void |
1d088dee | 5962 | set_input (const char *filename) |
512b62fb | 5963 | { |
b3694847 | 5964 | const char *p; |
512b62fb | 5965 | |
6afbc885 JM |
5966 | gcc_input_filename = filename; |
5967 | input_filename_length = strlen (gcc_input_filename); | |
5968 | input_basename = lbasename (gcc_input_filename); | |
512b62fb JM |
5969 | |
5970 | /* Find a suffix starting with the last period, | |
5971 | and set basename_length to exclude that suffix. */ | |
5972 | basename_length = strlen (input_basename); | |
ea414c97 | 5973 | suffixed_basename_length = basename_length; |
512b62fb | 5974 | p = input_basename + basename_length; |
d25a45d4 KH |
5975 | while (p != input_basename && *p != '.') |
5976 | --p; | |
512b62fb JM |
5977 | if (*p == '.' && p != input_basename) |
5978 | { | |
5979 | basename_length = p - input_basename; | |
5980 | input_suffix = p + 1; | |
5981 | } | |
5982 | else | |
5983 | input_suffix = ""; | |
589005ff | 5984 | |
99f78cdd | 5985 | /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then |
6afbc885 | 5986 | we will need to do a stat on the gcc_input_filename. The |
99f78cdd IR |
5987 | INPUT_STAT_SET signals that the stat is needed. */ |
5988 | input_stat_set = 0; | |
512b62fb | 5989 | } |
ed1f651b RS |
5990 | \f |
5991 | /* On fatal signals, delete all the temporary files. */ | |
5992 | ||
5993 | static void | |
2dec80c7 | 5994 | fatal_signal (int signum) |
ed1f651b RS |
5995 | { |
5996 | signal (signum, SIG_DFL); | |
5997 | delete_failure_queue (); | |
5998 | delete_temp_files (); | |
5999 | /* Get the same signal again, this time not handled, | |
6000 | so its normal effect occurs. */ | |
6001 | kill (getpid (), signum); | |
6002 | } | |
6003 | ||
2153915d AO |
6004 | /* Compare the contents of the two files named CMPFILE[0] and |
6005 | CMPFILE[1]. Return zero if they're identical, nonzero | |
6006 | otherwise. */ | |
6007 | ||
6008 | static int | |
6009 | compare_files (char *cmpfile[]) | |
6010 | { | |
6011 | int ret = 0; | |
6012 | FILE *temp[2] = { NULL, NULL }; | |
6013 | int i; | |
6014 | ||
6015 | #if HAVE_MMAP_FILE | |
6016 | { | |
6017 | size_t length[2]; | |
6018 | void *map[2] = { NULL, NULL }; | |
6019 | ||
6020 | for (i = 0; i < 2; i++) | |
6021 | { | |
6022 | struct stat st; | |
6023 | ||
6024 | if (stat (cmpfile[i], &st) < 0 || !S_ISREG (st.st_mode)) | |
6025 | { | |
6026 | error ("%s: could not determine length of compare-debug file %s", | |
6afbc885 | 6027 | gcc_input_filename, cmpfile[i]); |
2153915d AO |
6028 | ret = 1; |
6029 | break; | |
6030 | } | |
6031 | ||
6032 | length[i] = st.st_size; | |
6033 | } | |
6034 | ||
6035 | if (!ret && length[0] != length[1]) | |
6036 | { | |
6afbc885 | 6037 | error ("%s: -fcompare-debug failure (length)", gcc_input_filename); |
2153915d AO |
6038 | ret = 1; |
6039 | } | |
6040 | ||
6041 | if (!ret) | |
6042 | for (i = 0; i < 2; i++) | |
6043 | { | |
6044 | int fd = open (cmpfile[i], O_RDONLY); | |
6045 | if (fd < 0) | |
6046 | { | |
6047 | error ("%s: could not open compare-debug file %s", | |
6afbc885 | 6048 | gcc_input_filename, cmpfile[i]); |
2153915d AO |
6049 | ret = 1; |
6050 | break; | |
6051 | } | |
6052 | ||
6053 | map[i] = mmap (NULL, length[i], PROT_READ, MAP_PRIVATE, fd, 0); | |
6054 | close (fd); | |
6055 | ||
6056 | if (map[i] == (void *) MAP_FAILED) | |
6057 | { | |
6058 | ret = -1; | |
6059 | break; | |
6060 | } | |
6061 | } | |
6062 | ||
6063 | if (!ret) | |
6064 | { | |
6065 | if (memcmp (map[0], map[1], length[0]) != 0) | |
6066 | { | |
6afbc885 | 6067 | error ("%s: -fcompare-debug failure", gcc_input_filename); |
2153915d AO |
6068 | ret = 1; |
6069 | } | |
6070 | } | |
6071 | ||
6072 | for (i = 0; i < 2; i++) | |
6073 | if (map[i]) | |
e7aae3e8 | 6074 | munmap ((caddr_t) map[i], length[i]); |
2153915d AO |
6075 | |
6076 | if (ret >= 0) | |
6077 | return ret; | |
6078 | ||
6079 | ret = 0; | |
6080 | } | |
6081 | #endif | |
6082 | ||
6083 | for (i = 0; i < 2; i++) | |
6084 | { | |
6085 | temp[i] = fopen (cmpfile[i], "r"); | |
6086 | if (!temp[i]) | |
6087 | { | |
6088 | error ("%s: could not open compare-debug file %s", | |
6afbc885 | 6089 | gcc_input_filename, cmpfile[i]); |
2153915d AO |
6090 | ret = 1; |
6091 | break; | |
6092 | } | |
6093 | } | |
6094 | ||
6095 | if (!ret && temp[0] && temp[1]) | |
6096 | for (;;) | |
6097 | { | |
6098 | int c0, c1; | |
6099 | c0 = fgetc (temp[0]); | |
6100 | c1 = fgetc (temp[1]); | |
6101 | ||
6102 | if (c0 != c1) | |
6103 | { | |
6104 | error ("%s: -fcompare-debug failure", | |
6afbc885 | 6105 | gcc_input_filename); |
2153915d AO |
6106 | ret = 1; |
6107 | break; | |
6108 | } | |
6109 | ||
6110 | if (c0 == EOF) | |
6111 | break; | |
6112 | } | |
6113 | ||
6114 | for (i = 1; i >= 0; i--) | |
6115 | { | |
6116 | if (temp[i]) | |
6117 | fclose (temp[i]); | |
6118 | } | |
6119 | ||
6120 | return ret; | |
6121 | } | |
6122 | ||
07a3df01 | 6123 | extern int main (int, char **); |
a8f227e7 | 6124 | |
ed1f651b | 6125 | int |
07a3df01 | 6126 | main (int argc, char **argv) |
ed1f651b | 6127 | { |
ea414c97 | 6128 | size_t i; |
ed1f651b | 6129 | int value; |
ed1f651b | 6130 | int linker_was_run = 0; |
0855eab7 | 6131 | int lang_n_infiles = 0; |
17211ab5 | 6132 | int num_linker_inputs = 0; |
ed1f651b RS |
6133 | char *explicit_link_files; |
6134 | char *specs_file; | |
de9a793e | 6135 | char *lto_wrapper_file; |
878f32c3 | 6136 | const char *p; |
d9ac3a07 | 6137 | struct user_specs *uptr; |
2091ff66 | 6138 | char **old_argv = argv; |
60cf253a JM |
6139 | struct cl_decoded_option *decoded_options; |
6140 | unsigned int decoded_options_count; | |
ed1f651b | 6141 | |
b481444e JJ |
6142 | /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes |
6143 | on ?: in file-scope variable initializations. */ | |
6144 | asm_debug = ASM_DEBUG_SPEC; | |
6145 | ||
afcd8a02 | 6146 | p = argv[0] + strlen (argv[0]); |
509781a4 ME |
6147 | while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1])) |
6148 | --p; | |
6afbc885 | 6149 | progname = p; |
ed1f651b | 6150 | |
6afbc885 | 6151 | xmalloc_set_program_name (progname); |
e1a132c6 | 6152 | |
9d530538 MM |
6153 | expandargv (&argc, &argv); |
6154 | ||
2091ff66 NF |
6155 | /* Determine if any expansions were made. */ |
6156 | if (argv != old_argv) | |
6157 | at_file_supplied = true; | |
6158 | ||
a75bfaa6 JM |
6159 | global_options = global_options_init; |
6160 | ||
60cf253a JM |
6161 | decode_cmdline_options_to_array (argc, CONST_CAST2 (const char **, char **, |
6162 | argv), | |
6163 | CL_DRIVER, | |
6164 | &decoded_options, &decoded_options_count); | |
14c7833c | 6165 | |
93284395 | 6166 | #ifdef GCC_DRIVER_HOST_INITIALIZATION |
ff7cc307 | 6167 | /* Perform host dependent initialization when needed. */ |
93284395 ME |
6168 | GCC_DRIVER_HOST_INITIALIZATION; |
6169 | #endif | |
6170 | ||
98a3dad4 | 6171 | /* Unlock the stdio streams. */ |
2653bb0c | 6172 | unlock_std_streams (); |
98a3dad4 | 6173 | |
191bf464 | 6174 | gcc_init_libintl (); |
ab87f8c8 | 6175 | |
6afbc885 JM |
6176 | diagnostic_initialize (global_dc, 0); |
6177 | if (atexit (delete_temp_files) != 0) | |
6178 | fatal_error ("atexit failed"); | |
6179 | ||
ed1f651b | 6180 | if (signal (SIGINT, SIG_IGN) != SIG_IGN) |
2dec80c7 | 6181 | signal (SIGINT, fatal_signal); |
2a353d3a | 6182 | #ifdef SIGHUP |
ed1f651b | 6183 | if (signal (SIGHUP, SIG_IGN) != SIG_IGN) |
2dec80c7 | 6184 | signal (SIGHUP, fatal_signal); |
2a353d3a | 6185 | #endif |
ed1f651b | 6186 | if (signal (SIGTERM, SIG_IGN) != SIG_IGN) |
2dec80c7 | 6187 | signal (SIGTERM, fatal_signal); |
ed1f651b RS |
6188 | #ifdef SIGPIPE |
6189 | if (signal (SIGPIPE, SIG_IGN) != SIG_IGN) | |
2dec80c7 | 6190 | signal (SIGPIPE, fatal_signal); |
ed1f651b | 6191 | #endif |
798bdf70 | 6192 | #ifdef SIGCHLD |
0bf679a3 BK |
6193 | /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will |
6194 | receive the signal. A different setting is inheritable */ | |
6195 | signal (SIGCHLD, SIG_DFL); | |
798bdf70 | 6196 | #endif |
ed1f651b | 6197 | |
f3226a90 JT |
6198 | /* Allocate the argument vector. */ |
6199 | alloc_args (); | |
ed1f651b RS |
6200 | |
6201 | obstack_init (&obstack); | |
6202 | ||
961b7009 MM |
6203 | /* Build multilib_select, et. al from the separate lines that make up each |
6204 | multilib selection. */ | |
ffd86336 | 6205 | { |
3b304f5b | 6206 | const char *const *q = multilib_raw; |
961b7009 | 6207 | int need_space; |
ffd86336 JW |
6208 | |
6209 | obstack_init (&multilib_obstack); | |
0f41302f | 6210 | while ((p = *q++) != (char *) 0) |
ffd86336 JW |
6211 | obstack_grow (&multilib_obstack, p, strlen (p)); |
6212 | ||
6213 | obstack_1grow (&multilib_obstack, 0); | |
7973fd2a | 6214 | multilib_select = XOBFINISH (&multilib_obstack, const char *); |
961b7009 MM |
6215 | |
6216 | q = multilib_matches_raw; | |
6217 | while ((p = *q++) != (char *) 0) | |
6218 | obstack_grow (&multilib_obstack, p, strlen (p)); | |
6219 | ||
6220 | obstack_1grow (&multilib_obstack, 0); | |
7973fd2a | 6221 | multilib_matches = XOBFINISH (&multilib_obstack, const char *); |
961b7009 | 6222 | |
0a8d6618 BC |
6223 | q = multilib_exclusions_raw; |
6224 | while ((p = *q++) != (char *) 0) | |
d25a45d4 | 6225 | obstack_grow (&multilib_obstack, p, strlen (p)); |
0a8d6618 BC |
6226 | |
6227 | obstack_1grow (&multilib_obstack, 0); | |
7973fd2a | 6228 | multilib_exclusions = XOBFINISH (&multilib_obstack, const char *); |
9218435e | 6229 | |
961b7009 | 6230 | need_space = FALSE; |
b6a1cbae | 6231 | for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++) |
961b7009 MM |
6232 | { |
6233 | if (need_space) | |
6234 | obstack_1grow (&multilib_obstack, ' '); | |
6235 | obstack_grow (&multilib_obstack, | |
6236 | multilib_defaults_raw[i], | |
6237 | strlen (multilib_defaults_raw[i])); | |
6238 | need_space = TRUE; | |
6239 | } | |
6240 | ||
6241 | obstack_1grow (&multilib_obstack, 0); | |
7973fd2a | 6242 | multilib_defaults = XOBFINISH (&multilib_obstack, const char *); |
ffd86336 JW |
6243 | } |
6244 | ||
8faf4a68 JW |
6245 | #ifdef INIT_ENVIRONMENT |
6246 | /* Set up any other necessary machine specific environment variables. */ | |
47d33318 | 6247 | xputenv (INIT_ENVIRONMENT); |
8faf4a68 JW |
6248 | #endif |
6249 | ||
ed1f651b RS |
6250 | /* Make a table of what switches there are (switches, n_switches). |
6251 | Make a table of specified input files (infiles, n_infiles). | |
6252 | Decode switches that are handled locally. */ | |
6253 | ||
60cf253a | 6254 | process_command (decoded_options_count, decoded_options); |
ed1f651b RS |
6255 | |
6256 | /* Initialize the vector of specs to just the default. | |
6257 | This means one element containing 0s, as a terminator. */ | |
6258 | ||
e1e4cdc4 | 6259 | compilers = XNEWVAR (struct compiler, sizeof default_compilers); |
703ad42b | 6260 | memcpy (compilers, default_compilers, sizeof default_compilers); |
ed1f651b RS |
6261 | n_compilers = n_default_compilers; |
6262 | ||
6263 | /* Read specs from a file if there is one. */ | |
6264 | ||
6aa62cff | 6265 | machine_suffix = concat (spec_machine, dir_separator_str, |
d4f2852f KG |
6266 | spec_version, dir_separator_str, NULL); |
6267 | just_machine_suffix = concat (spec_machine, dir_separator_str, NULL); | |
ed1f651b | 6268 | |
00dcee0c | 6269 | specs_file = find_a_file (&startfile_prefixes, "specs", R_OK, true); |
ed1f651b RS |
6270 | /* Read the specs file unless it is a default one. */ |
6271 | if (specs_file != 0 && strcmp (specs_file, "specs")) | |
20df0482 MM |
6272 | read_specs (specs_file, TRUE); |
6273 | else | |
6274 | init_spec (); | |
841faeed | 6275 | |
5bb67e36 | 6276 | /* We need to check standard_exec_prefix/just_machine_suffix/specs |
3ac63d94 | 6277 | for any override of as, ld and libraries. */ |
e1e4cdc4 | 6278 | specs_file = (char *) alloca (strlen (standard_exec_prefix) |
703ad42b | 6279 | + strlen (just_machine_suffix) + sizeof ("specs")); |
5bb67e36 RK |
6280 | |
6281 | strcpy (specs_file, standard_exec_prefix); | |
6282 | strcat (specs_file, just_machine_suffix); | |
6283 | strcat (specs_file, "specs"); | |
6284 | if (access (specs_file, R_OK) == 0) | |
6285 | read_specs (specs_file, TRUE); | |
9218435e | 6286 | |
7816bea0 DJ |
6287 | /* Process any configure-time defaults specified for the command line |
6288 | options, via OPTION_DEFAULT_SPECS. */ | |
6289 | for (i = 0; i < ARRAY_SIZE (option_default_specs); i++) | |
6290 | do_option_spec (option_default_specs[i].name, | |
6291 | option_default_specs[i].spec); | |
6292 | ||
3bd6d4c4 AO |
6293 | /* Process DRIVER_SELF_SPECS, adding any new options to the end |
6294 | of the command line. */ | |
6295 | ||
6296 | for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++) | |
6297 | do_self_spec (driver_self_specs[i]); | |
6298 | ||
2153915d AO |
6299 | if (compare_debug) |
6300 | { | |
6301 | enum save_temps save; | |
6302 | ||
6303 | if (!compare_debug_second) | |
6304 | { | |
6305 | n_switches_debug_check[1] = n_switches; | |
efe5e5a0 | 6306 | n_switches_alloc_debug_check[1] = n_switches_alloc; |
2153915d | 6307 | switches_debug_check[1] = XDUPVEC (struct switchstr, switches, |
efe5e5a0 | 6308 | n_switches_alloc); |
2153915d AO |
6309 | |
6310 | do_self_spec ("%:compare-debug-self-opt()"); | |
6311 | n_switches_debug_check[0] = n_switches; | |
efe5e5a0 | 6312 | n_switches_alloc_debug_check[0] = n_switches_alloc; |
2153915d AO |
6313 | switches_debug_check[0] = switches; |
6314 | ||
6315 | n_switches = n_switches_debug_check[1]; | |
efe5e5a0 | 6316 | n_switches_alloc = n_switches_alloc_debug_check[1]; |
2153915d AO |
6317 | switches = switches_debug_check[1]; |
6318 | } | |
6319 | ||
6320 | /* Avoid crash when computing %j in this early. */ | |
6321 | save = save_temps_flag; | |
6322 | save_temps_flag = SAVE_TEMPS_NONE; | |
6323 | ||
6324 | compare_debug = -compare_debug; | |
6325 | do_self_spec ("%:compare-debug-self-opt()"); | |
6326 | ||
6327 | save_temps_flag = save; | |
6328 | ||
6329 | if (!compare_debug_second) | |
6330 | { | |
6331 | n_switches_debug_check[1] = n_switches; | |
efe5e5a0 | 6332 | n_switches_alloc_debug_check[1] = n_switches_alloc; |
2153915d AO |
6333 | switches_debug_check[1] = switches; |
6334 | compare_debug = -compare_debug; | |
6335 | n_switches = n_switches_debug_check[0]; | |
efe5e5a0 | 6336 | n_switches_alloc = n_switches_debug_check[0]; |
2153915d AO |
6337 | switches = switches_debug_check[0]; |
6338 | } | |
6339 | } | |
6340 | ||
4977bab6 ZW |
6341 | /* If not cross-compiling, look for executables in the standard |
6342 | places. */ | |
6343 | if (*cross_compile == '0') | |
004fd4d5 | 6344 | { |
2296d164 RK |
6345 | if (*md_exec_prefix) |
6346 | { | |
6347 | add_prefix (&exec_prefixes, md_exec_prefix, "GCC", | |
1a5d37a1 | 6348 | PREFIX_PRIORITY_LAST, 0, 0); |
2296d164 | 6349 | } |
4977bab6 ZW |
6350 | } |
6351 | ||
71c0e7fc | 6352 | /* Process sysroot_suffix_spec. */ |
e7f13528 GP |
6353 | if (*sysroot_suffix_spec != 0 |
6354 | && do_spec_2 (sysroot_suffix_spec) == 0) | |
6355 | { | |
5b634ee0 | 6356 | if (VEC_length (const_char_p, argbuf) > 1) |
ab532386 | 6357 | error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC"); |
5b634ee0 JM |
6358 | else if (VEC_length (const_char_p, argbuf) == 1) |
6359 | target_sysroot_suffix = xstrdup (VEC_last (const_char_p, argbuf)); | |
e7f13528 GP |
6360 | } |
6361 | ||
380e5ca4 MM |
6362 | #ifdef HAVE_LD_SYSROOT |
6363 | /* Pass the --sysroot option to the linker, if it supports that. If | |
6364 | there is a sysroot_suffix_spec, it has already been processed by | |
6365 | this point, so target_system_root really is the system root we | |
6366 | should be using. */ | |
6367 | if (target_system_root) | |
6368 | { | |
6369 | obstack_grow (&obstack, "%(sysroot_spec) ", strlen ("%(sysroot_spec) ")); | |
6370 | obstack_grow0 (&obstack, link_spec, strlen (link_spec)); | |
7973fd2a | 6371 | set_spec ("link", XOBFINISH (&obstack, const char *)); |
380e5ca4 MM |
6372 | } |
6373 | #endif | |
6374 | ||
71c0e7fc | 6375 | /* Process sysroot_hdrs_suffix_spec. */ |
e7f13528 GP |
6376 | if (*sysroot_hdrs_suffix_spec != 0 |
6377 | && do_spec_2 (sysroot_hdrs_suffix_spec) == 0) | |
6378 | { | |
5b634ee0 | 6379 | if (VEC_length (const_char_p, argbuf) > 1) |
ab532386 | 6380 | error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC"); |
5b634ee0 JM |
6381 | else if (VEC_length (const_char_p, argbuf) == 1) |
6382 | target_sysroot_hdrs_suffix = xstrdup (VEC_last (const_char_p, argbuf)); | |
e7f13528 GP |
6383 | } |
6384 | ||
4977bab6 ZW |
6385 | /* Look for startfiles in the standard places. */ |
6386 | if (*startfile_prefix_spec != 0 | |
6387 | && do_spec_2 (startfile_prefix_spec) == 0 | |
6388 | && do_spec_1 (" ", 0, NULL) == 0) | |
6389 | { | |
5b634ee0 | 6390 | const char *arg; |
4977bab6 | 6391 | int ndx; |
5b634ee0 JM |
6392 | FOR_EACH_VEC_ELT (const_char_p, argbuf, ndx, arg) |
6393 | add_sysrooted_prefix (&startfile_prefixes, arg, "BINUTILS", | |
1a5d37a1 | 6394 | PREFIX_PRIORITY_LAST, 0, 1); |
4977bab6 ZW |
6395 | } |
6396 | /* We should eventually get rid of all these and stick to | |
6397 | startfile_prefix_spec exclusively. */ | |
6398 | else if (*cross_compile == '0' || target_system_root) | |
6399 | { | |
2296d164 | 6400 | if (*md_startfile_prefix) |
4977bab6 | 6401 | add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix, |
1a5d37a1 | 6402 | "GCC", PREFIX_PRIORITY_LAST, 0, 1); |
004fd4d5 | 6403 | |
2296d164 | 6404 | if (*md_startfile_prefix_1) |
4977bab6 | 6405 | add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix_1, |
1a5d37a1 | 6406 | "GCC", PREFIX_PRIORITY_LAST, 0, 1); |
607a4f7d | 6407 | |
4dbc7773 ILT |
6408 | /* If standard_startfile_prefix is relative, base it on |
6409 | standard_exec_prefix. This lets us move the installed tree | |
6410 | as a unit. If GCC_EXEC_PREFIX is defined, base | |
0d037580 DJ |
6411 | standard_startfile_prefix on that as well. |
6412 | ||
6413 | If the prefix is relative, only search it for native compilers; | |
6414 | otherwise we will search a directory containing host libraries. */ | |
3dce1408 | 6415 | if (IS_ABSOLUTE_PATH (standard_startfile_prefix)) |
4977bab6 ZW |
6416 | add_sysrooted_prefix (&startfile_prefixes, |
6417 | standard_startfile_prefix, "BINUTILS", | |
1a5d37a1 | 6418 | PREFIX_PRIORITY_LAST, 0, 1); |
0d037580 | 6419 | else if (*cross_compile == '0') |
4dbc7773 | 6420 | { |
48ff801b | 6421 | add_prefix (&startfile_prefixes, |
b8698a0f L |
6422 | concat (gcc_exec_prefix |
6423 | ? gcc_exec_prefix : standard_exec_prefix, | |
6424 | machine_suffix, | |
d4f2852f | 6425 | standard_startfile_prefix, NULL), |
1a5d37a1 | 6426 | NULL, PREFIX_PRIORITY_LAST, 0, 1); |
9218435e | 6427 | } |
4dbc7773 | 6428 | |
f4c0a303 CD |
6429 | /* Sysrooted prefixes are relocated because target_system_root is |
6430 | also relocated by gcc_exec_prefix. */ | |
656c7a3a AL |
6431 | if (*standard_startfile_prefix_1) |
6432 | add_sysrooted_prefix (&startfile_prefixes, | |
6433 | standard_startfile_prefix_1, "BINUTILS", | |
1a5d37a1 | 6434 | PREFIX_PRIORITY_LAST, 0, 1); |
656c7a3a AL |
6435 | if (*standard_startfile_prefix_2) |
6436 | add_sysrooted_prefix (&startfile_prefixes, | |
6437 | standard_startfile_prefix_2, "BINUTILS", | |
1a5d37a1 | 6438 | PREFIX_PRIORITY_LAST, 0, 1); |
004fd4d5 | 6439 | } |
343f59d9 | 6440 | |
8607048d TT |
6441 | /* Process any user specified specs in the order given on the command |
6442 | line. */ | |
6443 | for (uptr = user_specs_head; uptr; uptr = uptr->next) | |
6444 | { | |
5bbcd587 | 6445 | char *filename = find_a_file (&startfile_prefixes, uptr->filename, |
00dcee0c | 6446 | R_OK, true); |
8607048d TT |
6447 | read_specs (filename ? filename : uptr->filename, FALSE); |
6448 | } | |
6449 | ||
e8601ecb JW |
6450 | /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */ |
6451 | if (gcc_exec_prefix) | |
cb6edbcb KG |
6452 | gcc_exec_prefix = concat (gcc_exec_prefix, spec_machine, dir_separator_str, |
6453 | spec_version, dir_separator_str, NULL); | |
004fd4d5 | 6454 | |
ed1f651b RS |
6455 | /* Now we have the specs. |
6456 | Set the `valid' bits for switches that match anything in any spec. */ | |
6457 | ||
6458 | validate_all_switches (); | |
6459 | ||
60103a34 DE |
6460 | /* Now that we have the switches and the specs, set |
6461 | the subdirectory based on the options. */ | |
6462 | set_multilib_dir (); | |
6463 | ||
d7f09764 | 6464 | /* Set up to remember the pathname of gcc and any options |
6afbc885 | 6465 | needed for collect. We use argv[0] instead of progname because |
d7f09764 DN |
6466 | we need the complete pathname. */ |
6467 | obstack_init (&collect_obstack); | |
6468 | obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1); | |
6469 | obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1); | |
6470 | xputenv (XOBFINISH (&collect_obstack, char *)); | |
6471 | ||
6472 | /* Set up to remember the pathname of the lto wrapper. */ | |
6473 | ||
de9a793e DG |
6474 | lto_wrapper_file = find_a_file (&exec_prefixes, "lto-wrapper", X_OK, false); |
6475 | if (lto_wrapper_file) | |
d7f09764 | 6476 | { |
de9a793e | 6477 | lto_wrapper_spec = lto_wrapper_file; |
d7f09764 DN |
6478 | obstack_init (&collect_obstack); |
6479 | obstack_grow (&collect_obstack, "COLLECT_LTO_WRAPPER=", | |
6480 | sizeof ("COLLECT_LTO_WRAPPER=") - 1); | |
6481 | obstack_grow (&collect_obstack, lto_wrapper_spec, | |
6482 | strlen (lto_wrapper_spec) + 1); | |
6483 | xputenv (XOBFINISH (&collect_obstack, char *)); | |
6484 | } | |
6485 | ||
ed1f651b RS |
6486 | /* Warn about any switches that no pass was interested in. */ |
6487 | ||
d25a45d4 | 6488 | for (i = 0; (int) i < n_switches; i++) |
ab87f8c8 | 6489 | if (! switches[i].validated) |
bdc6b402 | 6490 | error ("unrecognized option %<-%s%>", switches[i].part1); |
ed1f651b | 6491 | |
6a9e290e RK |
6492 | /* Obey some of the options. */ |
6493 | ||
2628b9d3 DE |
6494 | if (print_search_dirs) |
6495 | { | |
f4c0a303 CD |
6496 | printf (_("install: %s%s\n"), |
6497 | gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix, | |
6498 | gcc_exec_prefix ? "" : machine_suffix); | |
00dcee0c AM |
6499 | printf (_("programs: %s\n"), |
6500 | build_search_list (&exec_prefixes, "", false, false)); | |
6501 | printf (_("libraries: %s\n"), | |
6502 | build_search_list (&startfile_prefixes, "", false, true)); | |
9257393c | 6503 | return (0); |
2628b9d3 DE |
6504 | } |
6505 | ||
6a9e290e | 6506 | if (print_file_name) |
2dcb563f | 6507 | { |
6a9e290e | 6508 | printf ("%s\n", find_file (print_file_name)); |
9257393c | 6509 | return (0); |
2dcb563f RS |
6510 | } |
6511 | ||
6a9e290e RK |
6512 | if (print_prog_name) |
6513 | { | |
5bbcd587 | 6514 | char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK, 0); |
6a9e290e | 6515 | printf ("%s\n", (newname ? newname : print_prog_name)); |
9257393c | 6516 | return (0); |
6a9e290e | 6517 | } |
ed1f651b | 6518 | |
60103a34 DE |
6519 | if (print_multi_lib) |
6520 | { | |
6521 | print_multilib_info (); | |
9257393c | 6522 | return (0); |
60103a34 DE |
6523 | } |
6524 | ||
6525 | if (print_multi_directory) | |
6526 | { | |
6527 | if (multilib_dir == NULL) | |
6528 | printf (".\n"); | |
6529 | else | |
6530 | printf ("%s\n", multilib_dir); | |
9257393c | 6531 | return (0); |
60103a34 DE |
6532 | } |
6533 | ||
3def1397 VP |
6534 | if (print_sysroot) |
6535 | { | |
6536 | if (target_system_root) | |
6537 | { | |
6538 | if (target_sysroot_suffix) | |
6539 | printf ("%s%s\n", target_system_root, target_sysroot_suffix); | |
6540 | else | |
6541 | printf ("%s\n", target_system_root); | |
6542 | } | |
6543 | return (0); | |
6544 | } | |
6545 | ||
5bbcd587 JJ |
6546 | if (print_multi_os_directory) |
6547 | { | |
6548 | if (multilib_os_dir == NULL) | |
6549 | printf (".\n"); | |
6550 | else | |
6551 | printf ("%s\n", multilib_os_dir); | |
6552 | return (0); | |
6553 | } | |
6554 | ||
14da6073 JM |
6555 | if (print_sysroot_headers_suffix) |
6556 | { | |
6557 | if (*sysroot_hdrs_suffix_spec) | |
6558 | { | |
dc5bbad3 JM |
6559 | printf("%s\n", (target_sysroot_hdrs_suffix |
6560 | ? target_sysroot_hdrs_suffix | |
6561 | : "")); | |
14da6073 JM |
6562 | return (0); |
6563 | } | |
6564 | else | |
6565 | /* The error status indicates that only one set of fixed | |
6566 | headers should be built. */ | |
2dec80c7 | 6567 | fatal_error ("not configured with sysroot headers suffix"); |
14da6073 JM |
6568 | } |
6569 | ||
b8468bc7 NC |
6570 | if (print_help_list) |
6571 | { | |
6572 | display_help (); | |
6573 | ||
6574 | if (! verbose_flag) | |
6575 | { | |
5e4adfba | 6576 | printf (_("\nFor bug reporting instructions, please see:\n")); |
a976603e | 6577 | printf ("%s.\n", bug_report_url); |
9218435e | 6578 | |
9257393c | 6579 | return (0); |
b8468bc7 NC |
6580 | } |
6581 | ||
6582 | /* We do not exit here. Instead we have created a fake input file | |
6583 | called 'help-dummy' which needs to be compiled, and we pass this | |
033505fc RW |
6584 | on the various sub-processes, along with the --help switch. |
6585 | Ensure their output appears after ours. */ | |
6586 | fputc ('\n', stdout); | |
6587 | fflush (stdout); | |
b8468bc7 | 6588 | } |
9218435e | 6589 | |
41fd0f9b RAE |
6590 | if (print_version) |
6591 | { | |
6afbc885 | 6592 | printf (_("%s %s%s\n"), progname, pkgversion_string, |
41fd0f9b | 6593 | version_string); |
9f8e43c0 | 6594 | printf ("Copyright %s 2011 Free Software Foundation, Inc.\n", |
41fd0f9b RAE |
6595 | _("(C)")); |
6596 | fputs (_("This is free software; see the source for copying conditions. There is NO\n\ | |
6597 | warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"), | |
6598 | stdout); | |
6599 | if (! verbose_flag) | |
6600 | return 0; | |
6601 | ||
6602 | /* We do not exit here. We use the same mechanism of --help to print | |
6603 | the version of the sub-processes. */ | |
6604 | fputc ('\n', stdout); | |
6605 | fflush (stdout); | |
6606 | } | |
6607 | ||
ed1f651b RS |
6608 | if (verbose_flag) |
6609 | { | |
7ad9ff7a | 6610 | int n; |
008355a6 | 6611 | const char *thrmod; |
7ad9ff7a | 6612 | |
2dec80c7 JM |
6613 | fnotice (stderr, "Target: %s\n", spec_machine); |
6614 | fnotice (stderr, "Configured with: %s\n", configuration_arguments); | |
f5fa9a5b | 6615 | |
008355a6 AO |
6616 | #ifdef THREAD_MODEL_SPEC |
6617 | /* We could have defined THREAD_MODEL_SPEC to "%*" by default, | |
6618 | but there's no point in doing all this processing just to get | |
6619 | thread_model back. */ | |
6620 | obstack_init (&obstack); | |
6621 | do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model); | |
6622 | obstack_1grow (&obstack, '\0'); | |
7973fd2a | 6623 | thrmod = XOBFINISH (&obstack, const char *); |
008355a6 AO |
6624 | #else |
6625 | thrmod = thread_model; | |
6626 | #endif | |
6627 | ||
2dec80c7 | 6628 | fnotice (stderr, "Thread model: %s\n", thrmod); |
a6687d2b | 6629 | |
7ad9ff7a DE |
6630 | /* compiler_version is truncated at the first space when initialized |
6631 | from version string, so truncate version_string at the first space | |
6632 | before comparing. */ | |
6633 | for (n = 0; version_string[n]; n++) | |
6634 | if (version_string[n] == ' ') | |
6635 | break; | |
6636 | ||
6637 | if (! strncmp (version_string, compiler_version, n) | |
6638 | && compiler_version[n] == 0) | |
2dec80c7 JM |
6639 | fnotice (stderr, "gcc version %s %s\n", version_string, |
6640 | pkgversion_string); | |
9c4faac1 | 6641 | else |
2dec80c7 JM |
6642 | fnotice (stderr, "gcc driver version %s %sexecuting gcc version %s\n", |
6643 | version_string, pkgversion_string, compiler_version); | |
9c4faac1 | 6644 | |
ed1f651b | 6645 | if (n_infiles == 0) |
9257393c | 6646 | return (0); |
ed1f651b RS |
6647 | } |
6648 | ||
a2a05b0a | 6649 | if (n_infiles == added_libraries) |
2dec80c7 | 6650 | fatal_error ("no input files"); |
ed1f651b | 6651 | |
4df47bca JM |
6652 | if (seen_error ()) |
6653 | goto out; | |
6654 | ||
ed1f651b RS |
6655 | /* Make a place to record the compiler output file names |
6656 | that correspond to the input files. */ | |
6657 | ||
f271358e | 6658 | i = n_infiles; |
e37cda9b | 6659 | i += lang_specific_extra_outfiles; |
5ed6ace5 | 6660 | outfiles = XCNEWVEC (const char *, i); |
ed1f651b RS |
6661 | |
6662 | /* Record which files were specified explicitly as link input. */ | |
6663 | ||
d900f77d | 6664 | explicit_link_files = XCNEWVEC (char, n_infiles); |
ed1f651b | 6665 | |
56b721c5 | 6666 | combine_inputs = have_o || flag_wpa; |
0855eab7 CT |
6667 | |
6668 | for (i = 0; (int) i < n_infiles; i++) | |
d1bd0ded | 6669 | { |
0855eab7 | 6670 | const char *name = infiles[i].name; |
7904f95f EC |
6671 | struct compiler *compiler = lookup_compiler (name, |
6672 | strlen (name), | |
0855eab7 | 6673 | infiles[i].language); |
7904f95f | 6674 | |
0855eab7 CT |
6675 | if (compiler && !(compiler->combinable)) |
6676 | combine_inputs = false; | |
7904f95f | 6677 | |
0855eab7 CT |
6678 | if (lang_n_infiles > 0 && compiler != input_file_compiler |
6679 | && infiles[i].language && infiles[i].language[0] != '*') | |
6680 | infiles[i].incompiler = compiler; | |
6681 | else if (compiler) | |
6682 | { | |
6683 | lang_n_infiles++; | |
6684 | input_file_compiler = compiler; | |
6685 | infiles[i].incompiler = compiler; | |
6686 | } | |
6687 | else | |
6688 | { | |
6689 | /* Since there is no compiler for this input file, assume it is a | |
9cf737f8 | 6690 | linker file. */ |
0855eab7 CT |
6691 | explicit_link_files[i] = 1; |
6692 | infiles[i].incompiler = NULL; | |
6693 | } | |
6694 | infiles[i].compiled = false; | |
6695 | infiles[i].preprocessed = false; | |
d1bd0ded | 6696 | } |
953ff289 | 6697 | |
de19a50e | 6698 | if (!combine_inputs && have_c && have_o && lang_n_infiles > 1) |
c3224d6f | 6699 | fatal_error ("cannot specify -o with -c, -S or -E with multiple files"); |
0855eab7 CT |
6700 | |
6701 | for (i = 0; (int) i < n_infiles; i++) | |
ed1f651b | 6702 | { |
ed1f651b RS |
6703 | int this_file_error = 0; |
6704 | ||
6705 | /* Tell do_spec what to substitute for %i. */ | |
6706 | ||
ed1f651b | 6707 | input_file_number = i; |
512b62fb | 6708 | set_input (infiles[i].name); |
ed1f651b | 6709 | |
0855eab7 CT |
6710 | if (infiles[i].compiled) |
6711 | continue; | |
6712 | ||
ed1f651b RS |
6713 | /* Use the same thing in %o, unless cp->spec says otherwise. */ |
6714 | ||
6afbc885 | 6715 | outfiles[i] = gcc_input_filename; |
ed1f651b RS |
6716 | |
6717 | /* Figure out which compiler from the file's suffix. */ | |
6718 | ||
c3224d6f RG |
6719 | input_file_compiler |
6720 | = lookup_compiler (infiles[i].name, input_filename_length, | |
6721 | infiles[i].language); | |
589005ff | 6722 | |
a9374841 | 6723 | if (input_file_compiler) |
ed1f651b RS |
6724 | { |
6725 | /* Ok, we found an applicable compiler. Run its spec. */ | |
ed1f651b | 6726 | |
a9374841 | 6727 | if (input_file_compiler->spec[0] == '#') |
d644be7b ZW |
6728 | { |
6729 | error ("%s: %s compiler not installed on this system", | |
6afbc885 | 6730 | gcc_input_filename, &input_file_compiler->spec[1]); |
d644be7b ZW |
6731 | this_file_error = 1; |
6732 | } | |
6733 | else | |
6734 | { | |
2153915d AO |
6735 | if (compare_debug) |
6736 | { | |
04695783 | 6737 | free (debug_check_temp_file[0]); |
2153915d AO |
6738 | debug_check_temp_file[0] = NULL; |
6739 | ||
04695783 | 6740 | free (debug_check_temp_file[1]); |
2153915d AO |
6741 | debug_check_temp_file[1] = NULL; |
6742 | } | |
6743 | ||
d644be7b | 6744 | value = do_spec (input_file_compiler->spec); |
0855eab7 | 6745 | infiles[i].compiled = true; |
d644be7b | 6746 | if (value < 0) |
b21292d0 | 6747 | this_file_error = 1; |
2153915d AO |
6748 | else if (compare_debug && debug_check_temp_file[0]) |
6749 | { | |
6750 | if (verbose_flag) | |
2dec80c7 | 6751 | inform (0, "recompiling with -fcompare-debug"); |
2153915d AO |
6752 | |
6753 | compare_debug = -compare_debug; | |
6754 | n_switches = n_switches_debug_check[1]; | |
efe5e5a0 | 6755 | n_switches_alloc = n_switches_alloc_debug_check[1]; |
2153915d AO |
6756 | switches = switches_debug_check[1]; |
6757 | ||
6758 | value = do_spec (input_file_compiler->spec); | |
6759 | ||
6760 | compare_debug = -compare_debug; | |
6761 | n_switches = n_switches_debug_check[0]; | |
efe5e5a0 | 6762 | n_switches_alloc = n_switches_alloc_debug_check[0]; |
2153915d AO |
6763 | switches = switches_debug_check[0]; |
6764 | ||
6765 | if (value < 0) | |
6766 | { | |
6767 | error ("during -fcompare-debug recompilation"); | |
6768 | this_file_error = 1; | |
6769 | } | |
6770 | ||
6771 | gcc_assert (debug_check_temp_file[1] | |
ba78087b KT |
6772 | && filename_cmp (debug_check_temp_file[0], |
6773 | debug_check_temp_file[1])); | |
2153915d AO |
6774 | |
6775 | if (verbose_flag) | |
2dec80c7 | 6776 | inform (0, "comparing final insns dumps"); |
2153915d AO |
6777 | |
6778 | if (compare_files (debug_check_temp_file)) | |
6779 | this_file_error = 1; | |
6780 | } | |
6781 | ||
6782 | if (compare_debug) | |
6783 | { | |
04695783 | 6784 | free (debug_check_temp_file[0]); |
2153915d AO |
6785 | debug_check_temp_file[0] = NULL; |
6786 | ||
04695783 | 6787 | free (debug_check_temp_file[1]); |
2153915d AO |
6788 | debug_check_temp_file[1] = NULL; |
6789 | } | |
d644be7b | 6790 | } |
ed1f651b RS |
6791 | } |
6792 | ||
6793 | /* If this file's name does not contain a recognized suffix, | |
6794 | record it as explicit linker input. */ | |
6795 | ||
6796 | else | |
6797 | explicit_link_files[i] = 1; | |
6798 | ||
6799 | /* Clear the delete-on-failure queue, deleting the files in it | |
6800 | if this compilation failed. */ | |
6801 | ||
6802 | if (this_file_error) | |
6803 | { | |
6804 | delete_failure_queue (); | |
6afbc885 | 6805 | errorcount++; |
ed1f651b RS |
6806 | } |
6807 | /* If this compilation succeeded, don't delete those files later. */ | |
6808 | clear_failure_queue (); | |
6809 | } | |
6810 | ||
817a8255 EC |
6811 | /* Reset the input file name to the first compile/object file name, for use |
6812 | with %b in LINK_SPEC. We use the first input file that we can find | |
7904f95f | 6813 | a compiler to compile it instead of using infiles.language since for |
817a8255 | 6814 | languages other than C we use aliases that we then lookup later. */ |
512b62fb | 6815 | if (n_infiles > 0) |
817a8255 EC |
6816 | { |
6817 | int i; | |
6818 | ||
6819 | for (i = 0; i < n_infiles ; i++) | |
42113d6b RG |
6820 | if (infiles[i].incompiler |
6821 | || (infiles[i].language && infiles[i].language[0] != '*')) | |
817a8255 EC |
6822 | { |
6823 | set_input (infiles[i].name); | |
6824 | break; | |
6825 | } | |
6826 | } | |
512b62fb | 6827 | |
6afbc885 | 6828 | if (!seen_error ()) |
15c5edb9 TT |
6829 | { |
6830 | /* Make sure INPUT_FILE_NUMBER points to first available open | |
6831 | slot. */ | |
6832 | input_file_number = n_infiles; | |
6833 | if (lang_specific_pre_link ()) | |
6afbc885 | 6834 | errorcount++; |
15c5edb9 | 6835 | } |
f271358e | 6836 | |
17211ab5 GK |
6837 | /* Determine if there are any linker input files. */ |
6838 | num_linker_inputs = 0; | |
6839 | for (i = 0; (int) i < n_infiles; i++) | |
6840 | if (explicit_link_files[i] || outfiles[i] != NULL) | |
6841 | num_linker_inputs++; | |
6842 | ||
ed1f651b RS |
6843 | /* Run ld to link all the compiler output files. */ |
6844 | ||
6afbc885 | 6845 | if (num_linker_inputs > 0 && !seen_error () && print_subprocess_help < 2) |
ed1f651b RS |
6846 | { |
6847 | int tmp = execution_count; | |
55b46574 RO |
6848 | #if HAVE_LTO_PLUGIN > 0 |
6849 | #if HAVE_LTO_PLUGIN == 2 | |
96bdf9b4 JH |
6850 | const char *fno_use_linker_plugin = "fno-use-linker-plugin"; |
6851 | #else | |
da18ea94 | 6852 | const char *fuse_linker_plugin = "fuse-linker-plugin"; |
55b46574 | 6853 | #endif |
96bdf9b4 | 6854 | #endif |
b3865ca9 | 6855 | |
9218435e | 6856 | /* We'll use ld if we can't find collect2. */ |
10da1131 BM |
6857 | if (! strcmp (linker_name_spec, "collect2")) |
6858 | { | |
00dcee0c | 6859 | char *s = find_a_file (&exec_prefixes, "collect2", X_OK, false); |
10da1131 BM |
6860 | if (s == NULL) |
6861 | linker_name_spec = "ld"; | |
6862 | } | |
d7f09764 | 6863 | |
55b46574 RO |
6864 | #if HAVE_LTO_PLUGIN > 0 |
6865 | #if HAVE_LTO_PLUGIN == 2 | |
96bdf9b4 JH |
6866 | if (!switch_matches (fno_use_linker_plugin, |
6867 | fno_use_linker_plugin + strlen (fno_use_linker_plugin), 0)) | |
6868 | #else | |
da18ea94 RAE |
6869 | if (switch_matches (fuse_linker_plugin, |
6870 | fuse_linker_plugin + strlen (fuse_linker_plugin), 0)) | |
96bdf9b4 | 6871 | #endif |
d7f09764 DN |
6872 | { |
6873 | linker_plugin_file_spec = find_a_file (&exec_prefixes, | |
1cd0b716 | 6874 | LTOPLUGINSONAME, R_OK, |
d7f09764 DN |
6875 | false); |
6876 | if (!linker_plugin_file_spec) | |
1cd0b716 | 6877 | fatal_error ("-fuse-linker-plugin, but " LTOPLUGINSONAME " not found"); |
d7f09764 | 6878 | } |
55b46574 | 6879 | #endif |
d7f09764 DN |
6880 | lto_gcc_spec = argv[0]; |
6881 | ||
b3865ca9 RS |
6882 | /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables |
6883 | for collect. */ | |
00dcee0c AM |
6884 | putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH", false); |
6885 | putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV, true); | |
b3865ca9 | 6886 | |
a0f87454 RS |
6887 | if (print_subprocess_help == 1) |
6888 | { | |
6889 | printf (_("\nLinker options\n==============\n\n")); | |
6890 | printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\"" | |
6891 | " to the linker.\n\n")); | |
6892 | fflush (stdout); | |
6893 | } | |
ed1f651b RS |
6894 | value = do_spec (link_command_spec); |
6895 | if (value < 0) | |
6afbc885 | 6896 | errorcount = 1; |
ed1f651b RS |
6897 | linker_was_run = (tmp != execution_count); |
6898 | } | |
6899 | ||
ed1f651b RS |
6900 | /* If options said don't run linker, |
6901 | complain about input files to be given to the linker. */ | |
6902 | ||
6afbc885 | 6903 | if (! linker_was_run && !seen_error ()) |
d25a45d4 | 6904 | for (i = 0; (int) i < n_infiles; i++) |
01e4dd0d KH |
6905 | if (explicit_link_files[i] |
6906 | && !(infiles[i].language && infiles[i].language[0] == '*')) | |
2dec80c7 JM |
6907 | warning (0, "%s: linker input file unused because linking not done", |
6908 | outfiles[i]); | |
ed1f651b RS |
6909 | |
6910 | /* Delete some or all of the temporary files we made. */ | |
6911 | ||
6afbc885 | 6912 | if (seen_error ()) |
ed1f651b RS |
6913 | delete_failure_queue (); |
6914 | delete_temp_files (); | |
6915 | ||
b8468bc7 NC |
6916 | if (print_help_list) |
6917 | { | |
5e4adfba | 6918 | printf (("\nFor bug reporting instructions, please see:\n")); |
a976603e | 6919 | printf ("%s\n", bug_report_url); |
b8468bc7 | 6920 | } |
9218435e | 6921 | |
4df47bca | 6922 | out: |
14a774a9 | 6923 | return (signal_count != 0 ? 2 |
6afbc885 | 6924 | : seen_error () ? (pass_exit_codes ? greatest_status : 1) |
14a774a9 | 6925 | : 0); |
ed1f651b RS |
6926 | } |
6927 | ||
6928 | /* Find the proper compilation spec for the file name NAME, | |
004fd4d5 | 6929 | whose length is LENGTH. LANGUAGE is the specified language, |
e5e809f4 | 6930 | or 0 if this file is to be passed to the linker. */ |
ed1f651b RS |
6931 | |
6932 | static struct compiler * | |
1d088dee | 6933 | lookup_compiler (const char *name, size_t length, const char *language) |
ed1f651b RS |
6934 | { |
6935 | struct compiler *cp; | |
6936 | ||
3ac63d94 | 6937 | /* If this was specified by the user to be a linker input, indicate that. */ |
e5e809f4 JL |
6938 | if (language != 0 && language[0] == '*') |
6939 | return 0; | |
6940 | ||
6941 | /* Otherwise, look for the language, if one is spec'd. */ | |
ed1f651b RS |
6942 | if (language != 0) |
6943 | { | |
6944 | for (cp = compilers + n_compilers - 1; cp >= compilers; cp--) | |
e5e809f4 JL |
6945 | if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language)) |
6946 | return cp; | |
6947 | ||
ed1f651b | 6948 | error ("language %s not recognized", language); |
e5e809f4 | 6949 | return 0; |
ed1f651b RS |
6950 | } |
6951 | ||
6952 | /* Look for a suffix. */ | |
6953 | for (cp = compilers + n_compilers - 1; cp >= compilers; cp--) | |
6954 | { | |
4cf3301c RS |
6955 | if (/* The suffix `-' matches only the file name `-'. */ |
6956 | (!strcmp (cp->suffix, "-") && !strcmp (name, "-")) | |
e5e809f4 JL |
6957 | || (strlen (cp->suffix) < length |
6958 | /* See if the suffix matches the end of NAME. */ | |
e5e809f4 JL |
6959 | && !strcmp (cp->suffix, |
6960 | name + length - strlen (cp->suffix)) | |
e5e809f4 | 6961 | )) |
589005ff | 6962 | break; |
03bf1c28 | 6963 | } |
e5e809f4 | 6964 | |
03bf1c28 | 6965 | #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM) |
a1105617 | 6966 | /* Look again, but case-insensitively this time. */ |
03bf1c28 MK |
6967 | if (cp < compilers) |
6968 | for (cp = compilers + n_compilers - 1; cp >= compilers; cp--) | |
6969 | { | |
6970 | if (/* The suffix `-' matches only the file name `-'. */ | |
6971 | (!strcmp (cp->suffix, "-") && !strcmp (name, "-")) | |
6972 | || (strlen (cp->suffix) < length | |
6973 | /* See if the suffix matches the end of NAME. */ | |
6974 | && ((!strcmp (cp->suffix, | |
6975 | name + length - strlen (cp->suffix)) | |
6976 | || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")) | |
6977 | && !strcasecmp (cp->suffix, | |
6978 | name + length - strlen (cp->suffix))) | |
6979 | )) | |
6980 | break; | |
6981 | } | |
6982 | #endif | |
6983 | ||
03bf1c28 MK |
6984 | if (cp >= compilers) |
6985 | { | |
ea414c97 ZW |
6986 | if (cp->spec[0] != '@') |
6987 | /* A non-alias entry: return it. */ | |
6988 | return cp; | |
9218435e | 6989 | |
ea414c97 ZW |
6990 | /* An alias entry maps a suffix to a language. |
6991 | Search for the language; pass 0 for NAME and LENGTH | |
6992 | to avoid infinite recursion if language not found. */ | |
6496a589 | 6993 | return lookup_compiler (NULL, 0, cp->spec + 1); |
ed1f651b | 6994 | } |
ed1f651b RS |
6995 | return 0; |
6996 | } | |
6997 | \f | |
ed1f651b | 6998 | static char * |
1d088dee | 6999 | save_string (const char *s, int len) |
ed1f651b | 7000 | { |
5ed6ace5 | 7001 | char *result = XNEWVEC (char, len + 1); |
ed1f651b | 7002 | |
da61dec9 | 7003 | memcpy (result, s, len); |
ed1f651b RS |
7004 | result[len] = 0; |
7005 | return result; | |
7006 | } | |
7007 | ||
d991c721 | 7008 | void |
1d088dee | 7009 | pfatal_with_name (const char *name) |
ed1f651b | 7010 | { |
ab87f8c8 JL |
7011 | perror_with_name (name); |
7012 | delete_temp_files (); | |
7013 | exit (1); | |
ed1f651b RS |
7014 | } |
7015 | ||
7016 | static void | |
1d088dee | 7017 | perror_with_name (const char *name) |
ed1f651b | 7018 | { |
bdc6b402 | 7019 | error ("%s: %m", name); |
ed1f651b | 7020 | } |
ed1f651b | 7021 | \f |
4977bab6 | 7022 | static inline void |
1d088dee | 7023 | validate_switches_from_spec (const char *spec) |
4977bab6 ZW |
7024 | { |
7025 | const char *p = spec; | |
7026 | char c; | |
7027 | while ((c = *p++)) | |
7028 | if (c == '%' && (*p == '{' || *p == '<' || (*p == 'W' && *++p == '{'))) | |
7029 | /* We have a switch spec. */ | |
7030 | p = validate_switches (p + 1); | |
7031 | } | |
7032 | ||
ed1f651b | 7033 | static void |
1d088dee | 7034 | validate_all_switches (void) |
ed1f651b RS |
7035 | { |
7036 | struct compiler *comp; | |
b3865ca9 | 7037 | struct spec_list *spec; |
ed1f651b | 7038 | |
ea414c97 | 7039 | for (comp = compilers; comp->spec; comp++) |
4977bab6 | 7040 | validate_switches_from_spec (comp->spec); |
ed1f651b | 7041 | |
3ac63d94 | 7042 | /* Look through the linked list of specs read from the specs file. */ |
d25a45d4 | 7043 | for (spec = specs; spec; spec = spec->next) |
4977bab6 | 7044 | validate_switches_from_spec (*spec->ptr_spec); |
b3865ca9 | 7045 | |
4977bab6 | 7046 | validate_switches_from_spec (link_command_spec); |
ed1f651b RS |
7047 | } |
7048 | ||
7049 | /* Look at the switch-name that comes after START | |
7050 | and mark as valid all supplied switches that match it. */ | |
7051 | ||
4977bab6 | 7052 | static const char * |
1d088dee | 7053 | validate_switches (const char *start) |
ed1f651b | 7054 | { |
b3694847 | 7055 | const char *p = start; |
4977bab6 ZW |
7056 | const char *atom; |
7057 | size_t len; | |
b3694847 | 7058 | int i; |
4977bab6 ZW |
7059 | bool suffix = false; |
7060 | bool starred = false; | |
1d088dee | 7061 | |
4977bab6 | 7062 | #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0) |
1d088dee | 7063 | |
10ebf5fe | 7064 | next_member: |
4977bab6 ZW |
7065 | SKIP_WHITE (); |
7066 | ||
ed1f651b | 7067 | if (*p == '!') |
4977bab6 | 7068 | p++; |
ed1f651b | 7069 | |
4977bab6 | 7070 | SKIP_WHITE (); |
48137d59 | 7071 | if (*p == '.' || *p == ',') |
4977bab6 | 7072 | suffix = true, p++; |
ed1f651b | 7073 | |
4977bab6 ZW |
7074 | atom = p; |
7075 | while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '=' | |
7a975113 | 7076 | || *p == ',' || *p == '.' || *p == '@') |
d25a45d4 | 7077 | p++; |
4977bab6 | 7078 | len = p - atom; |
ed1f651b | 7079 | |
4977bab6 ZW |
7080 | if (*p == '*') |
7081 | starred = true, p++; | |
7082 | ||
7083 | SKIP_WHITE (); | |
7084 | ||
7085 | if (!suffix) | |
ed1f651b RS |
7086 | { |
7087 | /* Mark all matching switches as valid. */ | |
ed1f651b | 7088 | for (i = 0; i < n_switches; i++) |
4977bab6 ZW |
7089 | if (!strncmp (switches[i].part1, atom, len) |
7090 | && (starred || switches[i].part1[len] == 0)) | |
ab87f8c8 | 7091 | switches[i].validated = 1; |
ed1f651b | 7092 | } |
4977bab6 | 7093 | |
5a0ba8c9 LJR |
7094 | if (*p) p++; |
7095 | if (*p && (p[-1] == '|' || p[-1] == '&')) | |
4977bab6 ZW |
7096 | goto next_member; |
7097 | ||
5a0ba8c9 | 7098 | if (*p && p[-1] == ':') |
ed1f651b | 7099 | { |
4977bab6 | 7100 | while (*p && *p != ';' && *p != '}') |
ed1f651b | 7101 | { |
4977bab6 ZW |
7102 | if (*p == '%') |
7103 | { | |
7104 | p++; | |
7105 | if (*p == '{' || *p == '<') | |
7106 | p = validate_switches (p+1); | |
7107 | else if (p[0] == 'W' && p[1] == '{') | |
7108 | p = validate_switches (p+2); | |
7109 | } | |
e17aafd1 GK |
7110 | else |
7111 | p++; | |
ed1f651b | 7112 | } |
4977bab6 | 7113 | |
5a0ba8c9 LJR |
7114 | if (*p) p++; |
7115 | if (*p && p[-1] == ';') | |
4977bab6 | 7116 | goto next_member; |
ed1f651b | 7117 | } |
10ebf5fe | 7118 | |
4977bab6 ZW |
7119 | return p; |
7120 | #undef SKIP_WHITE | |
ed1f651b | 7121 | } |
60103a34 | 7122 | \f |
5bbcd587 JJ |
7123 | struct mdswitchstr |
7124 | { | |
7125 | const char *str; | |
7126 | int len; | |
7127 | }; | |
7128 | ||
7129 | static struct mdswitchstr *mdswitches; | |
7130 | static int n_mdswitches; | |
7131 | ||
961b7009 | 7132 | /* Check whether a particular argument was used. The first time we |
956d6950 | 7133 | canonicalize the switches to keep only the ones we care about. */ |
60103a34 DE |
7134 | |
7135 | static int | |
1d088dee | 7136 | used_arg (const char *p, int len) |
60103a34 | 7137 | { |
3ac63d94 NC |
7138 | struct mswitchstr |
7139 | { | |
3b304f5b ZW |
7140 | const char *str; |
7141 | const char *replace; | |
961b7009 MM |
7142 | int len; |
7143 | int rep_len; | |
7144 | }; | |
7145 | ||
7146 | static struct mswitchstr *mswitches; | |
7147 | static int n_mswitches; | |
7148 | int i, j; | |
7149 | ||
7150 | if (!mswitches) | |
7151 | { | |
7152 | struct mswitchstr *matches; | |
3b304f5b | 7153 | const char *q; |
c8c2dcdc | 7154 | int cnt = 0; |
961b7009 | 7155 | |
d25a45d4 KH |
7156 | /* Break multilib_matches into the component strings of string |
7157 | and replacement string. */ | |
1a0bdd29 RK |
7158 | for (q = multilib_matches; *q != '\0'; q++) |
7159 | if (*q == ';') | |
961b7009 MM |
7160 | cnt++; |
7161 | ||
e1e4cdc4 KG |
7162 | matches |
7163 | = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt); | |
961b7009 MM |
7164 | i = 0; |
7165 | q = multilib_matches; | |
7166 | while (*q != '\0') | |
7167 | { | |
7168 | matches[i].str = q; | |
7169 | while (*q != ' ') | |
7170 | { | |
7171 | if (*q == '\0') | |
3b5edfee NS |
7172 | { |
7173 | invalid_matches: | |
bdc6b402 | 7174 | fatal_error ("multilib spec %qs is invalid", |
2dec80c7 | 7175 | multilib_matches); |
3b5edfee | 7176 | } |
961b7009 MM |
7177 | q++; |
7178 | } | |
961b7009 | 7179 | matches[i].len = q - matches[i].str; |
60103a34 | 7180 | |
961b7009 MM |
7181 | matches[i].replace = ++q; |
7182 | while (*q != ';' && *q != '\0') | |
7183 | { | |
7184 | if (*q == ' ') | |
3b5edfee | 7185 | goto invalid_matches; |
961b7009 MM |
7186 | q++; |
7187 | } | |
7188 | matches[i].rep_len = q - matches[i].replace; | |
7189 | i++; | |
83a0c799 ZW |
7190 | if (*q == ';') |
7191 | q++; | |
961b7009 | 7192 | } |
60103a34 | 7193 | |
71591a1d JW |
7194 | /* Now build a list of the replacement string for switches that we care |
7195 | about. Make sure we allocate at least one entry. This prevents | |
7196 | xmalloc from calling fatal, and prevents us from re-executing this | |
7197 | block of code. */ | |
7198 | mswitches | |
5ed6ace5 | 7199 | = XNEWVEC (struct mswitchstr, n_mdswitches + (n_switches ? n_switches : 1)); |
961b7009 | 7200 | for (i = 0; i < n_switches; i++) |
3371362c | 7201 | if ((switches[i].live_cond & SWITCH_IGNORE) == 0) |
f645e2bd RS |
7202 | { |
7203 | int xlen = strlen (switches[i].part1); | |
7204 | for (j = 0; j < cnt; j++) | |
7205 | if (xlen == matches[j].len | |
7206 | && ! strncmp (switches[i].part1, matches[j].str, xlen)) | |
7207 | { | |
7208 | mswitches[n_mswitches].str = matches[j].replace; | |
7209 | mswitches[n_mswitches].len = matches[j].rep_len; | |
7210 | mswitches[n_mswitches].replace = (char *) 0; | |
7211 | mswitches[n_mswitches].rep_len = 0; | |
7212 | n_mswitches++; | |
7213 | break; | |
7214 | } | |
7215 | } | |
5bbcd587 JJ |
7216 | |
7217 | /* Add MULTILIB_DEFAULTS switches too, as long as they were not present | |
7218 | on the command line nor any options mutually incompatible with | |
7219 | them. */ | |
7220 | for (i = 0; i < n_mdswitches; i++) | |
7221 | { | |
7222 | const char *r; | |
7223 | ||
7224 | for (q = multilib_options; *q != '\0'; q++) | |
7225 | { | |
7226 | while (*q == ' ') | |
7227 | q++; | |
7228 | ||
7229 | r = q; | |
7230 | while (strncmp (q, mdswitches[i].str, mdswitches[i].len) != 0 | |
7231 | || strchr (" /", q[mdswitches[i].len]) == NULL) | |
7232 | { | |
7233 | while (*q != ' ' && *q != '/' && *q != '\0') | |
7234 | q++; | |
7235 | if (*q != '/') | |
7236 | break; | |
7237 | q++; | |
7238 | } | |
7239 | ||
7240 | if (*q != ' ' && *q != '\0') | |
7241 | { | |
7242 | while (*r != ' ' && *r != '\0') | |
7243 | { | |
7244 | q = r; | |
7245 | while (*q != ' ' && *q != '/' && *q != '\0') | |
7246 | q++; | |
7247 | ||
7248 | if (used_arg (r, q - r)) | |
7249 | break; | |
7250 | ||
7251 | if (*q != '/') | |
7252 | { | |
7253 | mswitches[n_mswitches].str = mdswitches[i].str; | |
7254 | mswitches[n_mswitches].len = mdswitches[i].len; | |
7255 | mswitches[n_mswitches].replace = (char *) 0; | |
7256 | mswitches[n_mswitches].rep_len = 0; | |
7257 | n_mswitches++; | |
7258 | break; | |
7259 | } | |
7260 | ||
7261 | r = q + 1; | |
7262 | } | |
7263 | break; | |
7264 | } | |
7265 | } | |
7266 | } | |
961b7009 | 7267 | } |
03c42484 | 7268 | |
961b7009 MM |
7269 | for (i = 0; i < n_mswitches; i++) |
7270 | if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len)) | |
7271 | return 1; | |
03c42484 | 7272 | |
961b7009 MM |
7273 | return 0; |
7274 | } | |
03c42484 RK |
7275 | |
7276 | static int | |
1d088dee | 7277 | default_arg (const char *p, int len) |
03c42484 | 7278 | { |
5bbcd587 | 7279 | int i; |
e29ef920 | 7280 | |
5bbcd587 JJ |
7281 | for (i = 0; i < n_mdswitches; i++) |
7282 | if (len == mdswitches[i].len && ! strncmp (p, mdswitches[i].str, len)) | |
7283 | return 1; | |
03c42484 RK |
7284 | |
7285 | return 0; | |
7286 | } | |
7287 | ||
0a8d6618 BC |
7288 | /* Work out the subdirectory to use based on the options. The format of |
7289 | multilib_select is a list of elements. Each element is a subdirectory | |
7290 | name followed by a list of options followed by a semicolon. The format | |
7291 | of multilib_exclusions is the same, but without the preceding | |
7292 | directory. First gcc will check the exclusions, if none of the options | |
7293 | beginning with an exclamation point are present, and all of the other | |
7294 | options are present, then we will ignore this completely. Passing | |
7295 | that, gcc will consider each multilib_select in turn using the same | |
7296 | rules for matching the options. If a match is found, that subdirectory | |
7297 | will be used. */ | |
60103a34 DE |
7298 | |
7299 | static void | |
1d088dee | 7300 | set_multilib_dir (void) |
60103a34 | 7301 | { |
3b304f5b | 7302 | const char *p; |
3ac63d94 | 7303 | unsigned int this_path_len; |
3b304f5b | 7304 | const char *this_path, *this_arg; |
5bbcd587 | 7305 | const char *start, *end; |
03c42484 | 7306 | int not_arg; |
5bbcd587 JJ |
7307 | int ok, ndfltok, first; |
7308 | ||
7309 | n_mdswitches = 0; | |
7310 | start = multilib_defaults; | |
7311 | while (*start == ' ' || *start == '\t') | |
7312 | start++; | |
7313 | while (*start != '\0') | |
7314 | { | |
7315 | n_mdswitches++; | |
7316 | while (*start != ' ' && *start != '\t' && *start != '\0') | |
7317 | start++; | |
7318 | while (*start == ' ' || *start == '\t') | |
7319 | start++; | |
7320 | } | |
7321 | ||
7322 | if (n_mdswitches) | |
7323 | { | |
7324 | int i = 0; | |
7325 | ||
5ed6ace5 | 7326 | mdswitches = XNEWVEC (struct mdswitchstr, n_mdswitches); |
5bbcd587 JJ |
7327 | for (start = multilib_defaults; *start != '\0'; start = end + 1) |
7328 | { | |
7329 | while (*start == ' ' || *start == '\t') | |
7330 | start++; | |
7331 | ||
7332 | if (*start == '\0') | |
7333 | break; | |
1d088dee | 7334 | |
5bbcd587 JJ |
7335 | for (end = start + 1; |
7336 | *end != ' ' && *end != '\t' && *end != '\0'; end++) | |
7337 | ; | |
7338 | ||
7339 | obstack_grow (&multilib_obstack, start, end - start); | |
7340 | obstack_1grow (&multilib_obstack, 0); | |
7973fd2a | 7341 | mdswitches[i].str = XOBFINISH (&multilib_obstack, const char *); |
5bbcd587 JJ |
7342 | mdswitches[i++].len = end - start; |
7343 | ||
7344 | if (*end == '\0') | |
7345 | break; | |
7346 | } | |
7347 | } | |
60103a34 | 7348 | |
0a8d6618 BC |
7349 | p = multilib_exclusions; |
7350 | while (*p != '\0') | |
7351 | { | |
7352 | /* Ignore newlines. */ | |
7353 | if (*p == '\n') | |
d25a45d4 KH |
7354 | { |
7355 | ++p; | |
7356 | continue; | |
7357 | } | |
0a8d6618 BC |
7358 | |
7359 | /* Check the arguments. */ | |
7360 | ok = 1; | |
7361 | while (*p != ';') | |
d25a45d4 KH |
7362 | { |
7363 | if (*p == '\0') | |
3b5edfee NS |
7364 | { |
7365 | invalid_exclusions: | |
bdc6b402 | 7366 | fatal_error ("multilib exclusions %qs is invalid", |
2dec80c7 | 7367 | multilib_exclusions); |
3b5edfee | 7368 | } |
d25a45d4 KH |
7369 | |
7370 | if (! ok) | |
7371 | { | |
7372 | ++p; | |
7373 | continue; | |
7374 | } | |
7375 | ||
7376 | this_arg = p; | |
7377 | while (*p != ' ' && *p != ';') | |
7378 | { | |
7379 | if (*p == '\0') | |
3b5edfee | 7380 | goto invalid_exclusions; |
d25a45d4 KH |
7381 | ++p; |
7382 | } | |
7383 | ||
7384 | if (*this_arg != '!') | |
7385 | not_arg = 0; | |
7386 | else | |
7387 | { | |
7388 | not_arg = 1; | |
7389 | ++this_arg; | |
7390 | } | |
9218435e | 7391 | |
0a8d6618 BC |
7392 | ok = used_arg (this_arg, p - this_arg); |
7393 | if (not_arg) | |
7394 | ok = ! ok; | |
7395 | ||
d25a45d4 KH |
7396 | if (*p == ' ') |
7397 | ++p; | |
7398 | } | |
0a8d6618 BC |
7399 | |
7400 | if (ok) | |
3ac63d94 | 7401 | return; |
0a8d6618 BC |
7402 | |
7403 | ++p; | |
7404 | } | |
7405 | ||
5bbcd587 | 7406 | first = 1; |
0a8d6618 | 7407 | p = multilib_select; |
60103a34 DE |
7408 | while (*p != '\0') |
7409 | { | |
7410 | /* Ignore newlines. */ | |
7411 | if (*p == '\n') | |
7412 | { | |
7413 | ++p; | |
7414 | continue; | |
7415 | } | |
7416 | ||
7417 | /* Get the initial path. */ | |
7418 | this_path = p; | |
7419 | while (*p != ' ') | |
7420 | { | |
7421 | if (*p == '\0') | |
3b5edfee NS |
7422 | { |
7423 | invalid_select: | |
bdc6b402 | 7424 | fatal_error ("multilib select %qs is invalid", |
2dec80c7 | 7425 | multilib_select); |
3b5edfee | 7426 | } |
60103a34 DE |
7427 | ++p; |
7428 | } | |
7429 | this_path_len = p - this_path; | |
7430 | ||
7431 | /* Check the arguments. */ | |
03c42484 | 7432 | ok = 1; |
5bbcd587 | 7433 | ndfltok = 1; |
60103a34 DE |
7434 | ++p; |
7435 | while (*p != ';') | |
7436 | { | |
7437 | if (*p == '\0') | |
3b5edfee | 7438 | goto invalid_select; |
60103a34 | 7439 | |
03c42484 | 7440 | if (! ok) |
60103a34 DE |
7441 | { |
7442 | ++p; | |
7443 | continue; | |
7444 | } | |
7445 | ||
7446 | this_arg = p; | |
7447 | while (*p != ' ' && *p != ';') | |
7448 | { | |
7449 | if (*p == '\0') | |
3b5edfee | 7450 | goto invalid_select; |
60103a34 DE |
7451 | ++p; |
7452 | } | |
7453 | ||
03c42484 RK |
7454 | if (*this_arg != '!') |
7455 | not_arg = 0; | |
60103a34 | 7456 | else |
03c42484 RK |
7457 | { |
7458 | not_arg = 1; | |
7459 | ++this_arg; | |
7460 | } | |
7461 | ||
7462 | /* If this is a default argument, we can just ignore it. | |
7463 | This is true even if this_arg begins with '!'. Beginning | |
7464 | with '!' does not mean that this argument is necessarily | |
7465 | inappropriate for this library: it merely means that | |
7466 | there is a more specific library which uses this | |
7467 | argument. If this argument is a default, we need not | |
7468 | consider that more specific library. */ | |
5bbcd587 JJ |
7469 | ok = used_arg (this_arg, p - this_arg); |
7470 | if (not_arg) | |
7471 | ok = ! ok; | |
7472 | ||
7473 | if (! ok) | |
7474 | ndfltok = 0; | |
7475 | ||
7476 | if (default_arg (this_arg, p - this_arg)) | |
7477 | ok = 1; | |
60103a34 DE |
7478 | |
7479 | if (*p == ' ') | |
7480 | ++p; | |
7481 | } | |
7482 | ||
5bbcd587 | 7483 | if (ok && first) |
60103a34 DE |
7484 | { |
7485 | if (this_path_len != 1 | |
7486 | || this_path[0] != '.') | |
7487 | { | |
5ed6ace5 | 7488 | char *new_multilib_dir = XNEWVEC (char, this_path_len + 1); |
5bbcd587 JJ |
7489 | char *q; |
7490 | ||
878f32c3 KG |
7491 | strncpy (new_multilib_dir, this_path, this_path_len); |
7492 | new_multilib_dir[this_path_len] = '\0'; | |
5bbcd587 JJ |
7493 | q = strchr (new_multilib_dir, ':'); |
7494 | if (q != NULL) | |
7495 | *q = '\0'; | |
878f32c3 | 7496 | multilib_dir = new_multilib_dir; |
60103a34 | 7497 | } |
5bbcd587 JJ |
7498 | first = 0; |
7499 | } | |
7500 | ||
7501 | if (ndfltok) | |
7502 | { | |
7503 | const char *q = this_path, *end = this_path + this_path_len; | |
7504 | ||
7505 | while (q < end && *q != ':') | |
7506 | q++; | |
c49d2df6 | 7507 | if (q < end) |
5bbcd587 | 7508 | { |
5ed6ace5 | 7509 | char *new_multilib_os_dir = XNEWVEC (char, end - q); |
c49d2df6 JJ |
7510 | memcpy (new_multilib_os_dir, q + 1, end - q - 1); |
7511 | new_multilib_os_dir[end - q - 1] = '\0'; | |
5bbcd587 JJ |
7512 | multilib_os_dir = new_multilib_os_dir; |
7513 | break; | |
7514 | } | |
60103a34 DE |
7515 | } |
7516 | ||
7517 | ++p; | |
9218435e | 7518 | } |
5bbcd587 JJ |
7519 | |
7520 | if (multilib_dir == NULL && multilib_os_dir != NULL | |
7521 | && strcmp (multilib_os_dir, ".") == 0) | |
7522 | { | |
b1d5455a | 7523 | free (CONST_CAST (char *, multilib_os_dir)); |
5bbcd587 JJ |
7524 | multilib_os_dir = NULL; |
7525 | } | |
7526 | else if (multilib_dir != NULL && multilib_os_dir == NULL) | |
7527 | multilib_os_dir = multilib_dir; | |
60103a34 DE |
7528 | } |
7529 | ||
7530 | /* Print out the multiple library subdirectory selection | |
7531 | information. This prints out a series of lines. Each line looks | |
7532 | like SUBDIRECTORY;@OPTION@OPTION, with as many options as is | |
7533 | required. Only the desired options are printed out, the negative | |
7534 | matches. The options are print without a leading dash. There are | |
7535 | no spaces to make it easy to use the information in the shell. | |
7536 | Each subdirectory is printed only once. This assumes the ordering | |
0a8d6618 BC |
7537 | generated by the genmultilib script. Also, we leave out ones that match |
7538 | the exclusions. */ | |
60103a34 DE |
7539 | |
7540 | static void | |
1d088dee | 7541 | print_multilib_info (void) |
60103a34 | 7542 | { |
3b304f5b ZW |
7543 | const char *p = multilib_select; |
7544 | const char *last_path = 0, *this_path; | |
03c42484 | 7545 | int skip; |
3ac63d94 | 7546 | unsigned int last_path_len = 0; |
60103a34 DE |
7547 | |
7548 | while (*p != '\0') | |
7549 | { | |
0a8d6618 | 7550 | skip = 0; |
60103a34 DE |
7551 | /* Ignore newlines. */ |
7552 | if (*p == '\n') | |
7553 | { | |
7554 | ++p; | |
7555 | continue; | |
7556 | } | |
7557 | ||
7558 | /* Get the initial path. */ | |
7559 | this_path = p; | |
7560 | while (*p != ' ') | |
7561 | { | |
7562 | if (*p == '\0') | |
3b5edfee NS |
7563 | { |
7564 | invalid_select: | |
bdc6b402 | 7565 | fatal_error ("multilib select %qs is invalid", multilib_select); |
3b5edfee | 7566 | } |
7904f95f | 7567 | |
60103a34 DE |
7568 | ++p; |
7569 | } | |
7570 | ||
c49d2df6 JJ |
7571 | /* When --disable-multilib was used but target defines |
7572 | MULTILIB_OSDIRNAMES, entries starting with .: are there just | |
7573 | to find multilib_os_dir, so skip them from output. */ | |
7574 | if (this_path[0] == '.' && this_path[1] == ':') | |
7575 | skip = 1; | |
7576 | ||
0a8d6618 BC |
7577 | /* Check for matches with the multilib_exclusions. We don't bother |
7578 | with the '!' in either list. If any of the exclusion rules match | |
7579 | all of its options with the select rule, we skip it. */ | |
d25a45d4 KH |
7580 | { |
7581 | const char *e = multilib_exclusions; | |
7582 | const char *this_arg; | |
0a8d6618 | 7583 | |
d25a45d4 KH |
7584 | while (*e != '\0') |
7585 | { | |
7586 | int m = 1; | |
7587 | /* Ignore newlines. */ | |
7588 | if (*e == '\n') | |
7589 | { | |
7590 | ++e; | |
7591 | continue; | |
7592 | } | |
0a8d6618 | 7593 | |
d25a45d4 KH |
7594 | /* Check the arguments. */ |
7595 | while (*e != ';') | |
7596 | { | |
7597 | const char *q; | |
7598 | int mp = 0; | |
0a8d6618 | 7599 | |
d25a45d4 | 7600 | if (*e == '\0') |
3b5edfee NS |
7601 | { |
7602 | invalid_exclusion: | |
bdc6b402 | 7603 | fatal_error ("multilib exclusion %qs is invalid", |
2dec80c7 | 7604 | multilib_exclusions); |
3b5edfee | 7605 | } |
9218435e | 7606 | |
d25a45d4 KH |
7607 | if (! m) |
7608 | { | |
7609 | ++e; | |
7610 | continue; | |
7611 | } | |
0a8d6618 | 7612 | |
d25a45d4 | 7613 | this_arg = e; |
9218435e | 7614 | |
d25a45d4 KH |
7615 | while (*e != ' ' && *e != ';') |
7616 | { | |
7617 | if (*e == '\0') | |
3b5edfee | 7618 | goto invalid_exclusion; |
d25a45d4 KH |
7619 | ++e; |
7620 | } | |
0a8d6618 | 7621 | |
d25a45d4 KH |
7622 | q = p + 1; |
7623 | while (*q != ';') | |
7624 | { | |
7625 | const char *arg; | |
7626 | int len = e - this_arg; | |
0a8d6618 | 7627 | |
d25a45d4 | 7628 | if (*q == '\0') |
3b5edfee | 7629 | goto invalid_select; |
0a8d6618 | 7630 | |
d25a45d4 KH |
7631 | arg = q; |
7632 | ||
7633 | while (*q != ' ' && *q != ';') | |
7634 | { | |
7635 | if (*q == '\0') | |
3b5edfee | 7636 | goto invalid_select; |
0a8d6618 | 7637 | ++q; |
d25a45d4 | 7638 | } |
0a8d6618 | 7639 | |
3b5edfee NS |
7640 | if (! strncmp (arg, this_arg, |
7641 | (len < q - arg) ? q - arg : len) | |
7642 | || default_arg (this_arg, e - this_arg)) | |
d25a45d4 KH |
7643 | { |
7644 | mp = 1; | |
7645 | break; | |
7646 | } | |
0a8d6618 | 7647 | |
d25a45d4 KH |
7648 | if (*q == ' ') |
7649 | ++q; | |
7650 | } | |
9218435e | 7651 | |
d25a45d4 KH |
7652 | if (! mp) |
7653 | m = 0; | |
0a8d6618 | 7654 | |
d25a45d4 KH |
7655 | if (*e == ' ') |
7656 | ++e; | |
7657 | } | |
7658 | ||
7659 | if (m) | |
7660 | { | |
7661 | skip = 1; | |
7662 | break; | |
7663 | } | |
7664 | ||
7665 | if (*e != '\0') | |
7666 | ++e; | |
7667 | } | |
7668 | } | |
0a8d6618 BC |
7669 | |
7670 | if (! skip) | |
d25a45d4 KH |
7671 | { |
7672 | /* If this is a duplicate, skip it. */ | |
3b5edfee NS |
7673 | skip = (last_path != 0 |
7674 | && (unsigned int) (p - this_path) == last_path_len | |
ba78087b | 7675 | && ! filename_ncmp (last_path, this_path, last_path_len)); |
60103a34 | 7676 | |
d25a45d4 KH |
7677 | last_path = this_path; |
7678 | last_path_len = p - this_path; | |
0a8d6618 | 7679 | } |
60103a34 | 7680 | |
03c42484 RK |
7681 | /* If this directory requires any default arguments, we can skip |
7682 | it. We will already have printed a directory identical to | |
7683 | this one which does not require that default argument. */ | |
7684 | if (! skip) | |
7685 | { | |
3b304f5b | 7686 | const char *q; |
03c42484 RK |
7687 | |
7688 | q = p + 1; | |
7689 | while (*q != ';') | |
7690 | { | |
3b304f5b | 7691 | const char *arg; |
03c42484 RK |
7692 | |
7693 | if (*q == '\0') | |
3b5edfee | 7694 | goto invalid_select; |
03c42484 RK |
7695 | |
7696 | if (*q == '!') | |
7697 | arg = NULL; | |
7698 | else | |
7699 | arg = q; | |
7700 | ||
7701 | while (*q != ' ' && *q != ';') | |
7702 | { | |
7703 | if (*q == '\0') | |
3b5edfee | 7704 | goto invalid_select; |
03c42484 RK |
7705 | ++q; |
7706 | } | |
7707 | ||
7708 | if (arg != NULL | |
7709 | && default_arg (arg, q - arg)) | |
7710 | { | |
7711 | skip = 1; | |
7712 | break; | |
7713 | } | |
7714 | ||
7715 | if (*q == ' ') | |
7716 | ++q; | |
7717 | } | |
7718 | } | |
7719 | ||
60103a34 DE |
7720 | if (! skip) |
7721 | { | |
3b304f5b | 7722 | const char *p1; |
60103a34 | 7723 | |
5bbcd587 | 7724 | for (p1 = last_path; p1 < p && *p1 != ':'; p1++) |
60103a34 DE |
7725 | putchar (*p1); |
7726 | putchar (';'); | |
7727 | } | |
7728 | ||
7729 | ++p; | |
7730 | while (*p != ';') | |
7731 | { | |
7732 | int use_arg; | |
7733 | ||
7734 | if (*p == '\0') | |
3b5edfee | 7735 | goto invalid_select; |
60103a34 DE |
7736 | |
7737 | if (skip) | |
7738 | { | |
7739 | ++p; | |
7740 | continue; | |
7741 | } | |
7742 | ||
7743 | use_arg = *p != '!'; | |
7744 | ||
7745 | if (use_arg) | |
7746 | putchar ('@'); | |
7747 | ||
7748 | while (*p != ' ' && *p != ';') | |
7749 | { | |
7750 | if (*p == '\0') | |
3b5edfee | 7751 | goto invalid_select; |
60103a34 DE |
7752 | if (use_arg) |
7753 | putchar (*p); | |
7754 | ++p; | |
7755 | } | |
7756 | ||
7757 | if (*p == ' ') | |
7758 | ++p; | |
7759 | } | |
7760 | ||
7761 | if (! skip) | |
961b7009 | 7762 | { |
3ac63d94 | 7763 | /* If there are extra options, print them now. */ |
961b7009 MM |
7764 | if (multilib_extra && *multilib_extra) |
7765 | { | |
7766 | int print_at = TRUE; | |
3b304f5b | 7767 | const char *q; |
961b7009 MM |
7768 | |
7769 | for (q = multilib_extra; *q != '\0'; q++) | |
7770 | { | |
7771 | if (*q == ' ') | |
7772 | print_at = TRUE; | |
7773 | else | |
7774 | { | |
7775 | if (print_at) | |
7776 | putchar ('@'); | |
7777 | putchar (*q); | |
7778 | print_at = FALSE; | |
7779 | } | |
7780 | } | |
7781 | } | |
9218435e | 7782 | |
961b7009 MM |
7783 | putchar ('\n'); |
7784 | } | |
60103a34 DE |
7785 | |
7786 | ++p; | |
7787 | } | |
7788 | } | |
f3226a90 | 7789 | \f |
30d8946b MM |
7790 | /* getenv built-in spec function. |
7791 | ||
7792 | Returns the value of the environment variable given by its first | |
7793 | argument, concatenated with the second argument. If the | |
7794 | environment variable is not defined, a fatal error is issued. */ | |
7795 | ||
7796 | static const char * | |
7797 | getenv_spec_function (int argc, const char **argv) | |
7798 | { | |
7799 | char *value; | |
5557813a NS |
7800 | char *result; |
7801 | char *ptr; | |
7802 | size_t len; | |
30d8946b MM |
7803 | |
7804 | if (argc != 2) | |
7805 | return NULL; | |
7806 | ||
7807 | value = getenv (argv[0]); | |
7808 | if (!value) | |
bdc6b402 | 7809 | fatal_error ("environment variable %qs not defined", argv[0]); |
30d8946b | 7810 | |
5557813a | 7811 | /* We have to escape every character of the environment variable so |
fa10beec RW |
7812 | they are not interpreted as active spec characters. A |
7813 | particularly painful case is when we are reading a variable | |
5557813a NS |
7814 | holding a windows path complete with \ separators. */ |
7815 | len = strlen (value) * 2 + strlen (argv[1]) + 1; | |
e1e4cdc4 | 7816 | result = XNEWVAR (char, len); |
5557813a NS |
7817 | for (ptr = result; *value; ptr += 2) |
7818 | { | |
7819 | ptr[0] = '\\'; | |
7820 | ptr[1] = *value++; | |
7821 | } | |
b8698a0f | 7822 | |
5557813a | 7823 | strcpy (ptr, argv[1]); |
b8698a0f | 7824 | |
5557813a | 7825 | return result; |
30d8946b MM |
7826 | } |
7827 | ||
f3226a90 JT |
7828 | /* if-exists built-in spec function. |
7829 | ||
7830 | Checks to see if the file specified by the absolute pathname in | |
7831 | ARGS exists. Returns that pathname if found. | |
7832 | ||
7833 | The usual use for this function is to check for a library file | |
7834 | (whose name has been expanded with %s). */ | |
7835 | ||
7836 | static const char * | |
1d088dee | 7837 | if_exists_spec_function (int argc, const char **argv) |
f3226a90 JT |
7838 | { |
7839 | /* Must have only one argument. */ | |
3dce1408 | 7840 | if (argc == 1 && IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK)) |
f3226a90 JT |
7841 | return argv[0]; |
7842 | ||
7843 | return NULL; | |
7844 | } | |
152a5a9c JT |
7845 | |
7846 | /* if-exists-else built-in spec function. | |
7847 | ||
7848 | This is like if-exists, but takes an additional argument which | |
7849 | is returned if the first argument does not exist. */ | |
7850 | ||
7851 | static const char * | |
1d088dee | 7852 | if_exists_else_spec_function (int argc, const char **argv) |
152a5a9c JT |
7853 | { |
7854 | /* Must have exactly two arguments. */ | |
7855 | if (argc != 2) | |
7856 | return NULL; | |
7857 | ||
3dce1408 | 7858 | if (IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK)) |
152a5a9c JT |
7859 | return argv[0]; |
7860 | ||
7861 | return argv[1]; | |
7862 | } | |
3dd53121 AP |
7863 | |
7864 | /* replace-outfile built-in spec function. | |
ed5b9f96 GK |
7865 | |
7866 | This looks for the first argument in the outfiles array's name and | |
7867 | replaces it with the second argument. */ | |
3dd53121 AP |
7868 | |
7869 | static const char * | |
7870 | replace_outfile_spec_function (int argc, const char **argv) | |
7871 | { | |
7872 | int i; | |
7873 | /* Must have exactly two arguments. */ | |
7874 | if (argc != 2) | |
7875 | abort (); | |
7904f95f | 7876 | |
3dd53121 AP |
7877 | for (i = 0; i < n_infiles; i++) |
7878 | { | |
ba78087b | 7879 | if (outfiles[i] && !filename_cmp (outfiles[i], argv[0])) |
3dd53121 AP |
7880 | outfiles[i] = xstrdup (argv[1]); |
7881 | } | |
7882 | return NULL; | |
7883 | } | |
7884 | ||
2642f659 JH |
7885 | /* remove-outfile built-in spec function. |
7886 | * | |
7887 | * This looks for the first argument in the outfiles array's name and | |
7888 | * removes it. */ | |
7889 | ||
7890 | static const char * | |
7891 | remove_outfile_spec_function (int argc, const char **argv) | |
7892 | { | |
7893 | int i; | |
7894 | /* Must have exactly one argument. */ | |
7895 | if (argc != 1) | |
7896 | abort (); | |
7897 | ||
7898 | for (i = 0; i < n_infiles; i++) | |
7899 | { | |
ba78087b | 7900 | if (outfiles[i] && !filename_cmp (outfiles[i], argv[0])) |
2642f659 JH |
7901 | outfiles[i] = NULL; |
7902 | } | |
7903 | return NULL; | |
7904 | } | |
7905 | ||
7904f95f | 7906 | /* Given two version numbers, compares the two numbers. |
ed5b9f96 GK |
7907 | A version number must match the regular expression |
7908 | ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))* | |
7909 | */ | |
7910 | static int | |
7911 | compare_version_strings (const char *v1, const char *v2) | |
7912 | { | |
7913 | int rresult; | |
7914 | regex_t r; | |
7904f95f | 7915 | |
ed5b9f96 GK |
7916 | if (regcomp (&r, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$", |
7917 | REG_EXTENDED | REG_NOSUB) != 0) | |
7918 | abort (); | |
7919 | rresult = regexec (&r, v1, 0, NULL, 0); | |
7920 | if (rresult == REG_NOMATCH) | |
bdc6b402 | 7921 | fatal_error ("invalid version number %qs", v1); |
ed5b9f96 GK |
7922 | else if (rresult != 0) |
7923 | abort (); | |
7924 | rresult = regexec (&r, v2, 0, NULL, 0); | |
7925 | if (rresult == REG_NOMATCH) | |
bdc6b402 | 7926 | fatal_error ("invalid version number %qs", v2); |
ed5b9f96 GK |
7927 | else if (rresult != 0) |
7928 | abort (); | |
7929 | ||
7930 | return strverscmp (v1, v2); | |
7931 | } | |
7932 | ||
7933 | ||
7934 | /* version_compare built-in spec function. | |
7935 | ||
7936 | This takes an argument of the following form: | |
7937 | ||
7938 | <comparison-op> <arg1> [<arg2>] <switch> <result> | |
7939 | ||
7940 | and produces "result" if the comparison evaluates to true, | |
7941 | and nothing if it doesn't. | |
7942 | ||
7943 | The supported <comparison-op> values are: | |
7904f95f | 7944 | |
ed5b9f96 GK |
7945 | >= true if switch is a later (or same) version than arg1 |
7946 | !> opposite of >= | |
7947 | < true if switch is an earlier version than arg1 | |
7948 | !< opposite of < | |
7949 | >< true if switch is arg1 or later, and earlier than arg2 | |
7950 | <> true if switch is earlier than arg1 or is arg2 or later | |
7951 | ||
7952 | If the switch is not present, the condition is false unless | |
7953 | the first character of the <comparison-op> is '!'. | |
7954 | ||
7955 | For example, | |
7956 | %:version-compare(>= 10.3 mmacosx-version-min= -lmx) | |
7957 | adds -lmx if -mmacosx-version-min=10.3.9 was passed. */ | |
7958 | ||
7959 | static const char * | |
7960 | version_compare_spec_function (int argc, const char **argv) | |
7961 | { | |
7962 | int comp1, comp2; | |
7963 | size_t switch_len; | |
7964 | const char *switch_value = NULL; | |
7965 | int nargs = 1, i; | |
7966 | bool result; | |
7967 | ||
7968 | if (argc < 3) | |
2dec80c7 | 7969 | fatal_error ("too few arguments to %%:version-compare"); |
ed5b9f96 GK |
7970 | if (argv[0][0] == '\0') |
7971 | abort (); | |
7972 | if ((argv[0][1] == '<' || argv[0][1] == '>') && argv[0][0] != '!') | |
7973 | nargs = 2; | |
7974 | if (argc != nargs + 3) | |
2dec80c7 | 7975 | fatal_error ("too many arguments to %%:version-compare"); |
ed5b9f96 GK |
7976 | |
7977 | switch_len = strlen (argv[nargs + 1]); | |
7978 | for (i = 0; i < n_switches; i++) | |
7979 | if (!strncmp (switches[i].part1, argv[nargs + 1], switch_len) | |
7980 | && check_live_switch (i, switch_len)) | |
7981 | switch_value = switches[i].part1 + switch_len; | |
7982 | ||
7983 | if (switch_value == NULL) | |
7984 | comp1 = comp2 = -1; | |
7985 | else | |
7986 | { | |
7987 | comp1 = compare_version_strings (switch_value, argv[1]); | |
7988 | if (nargs == 2) | |
7989 | comp2 = compare_version_strings (switch_value, argv[2]); | |
7990 | else | |
7991 | comp2 = -1; /* This value unused. */ | |
7992 | } | |
7993 | ||
7994 | switch (argv[0][0] << 8 | argv[0][1]) | |
7995 | { | |
7996 | case '>' << 8 | '=': | |
7997 | result = comp1 >= 0; | |
7998 | break; | |
7999 | case '!' << 8 | '<': | |
8000 | result = comp1 >= 0 || switch_value == NULL; | |
8001 | break; | |
8002 | case '<' << 8: | |
8003 | result = comp1 < 0; | |
8004 | break; | |
8005 | case '!' << 8 | '>': | |
8006 | result = comp1 < 0 || switch_value == NULL; | |
8007 | break; | |
8008 | case '>' << 8 | '<': | |
8009 | result = comp1 >= 0 && comp2 < 0; | |
8010 | break; | |
8011 | case '<' << 8 | '>': | |
8012 | result = comp1 < 0 || comp2 >= 0; | |
8013 | break; | |
7904f95f | 8014 | |
ed5b9f96 | 8015 | default: |
bdc6b402 | 8016 | fatal_error ("unknown operator %qs in %%:version-compare", argv[0]); |
ed5b9f96 GK |
8017 | } |
8018 | if (! result) | |
8019 | return NULL; | |
8020 | ||
8021 | return argv[nargs + 2]; | |
8022 | } | |
953ff289 DN |
8023 | |
8024 | /* %:include builtin spec function. This differs from %include in that it | |
8025 | can be nested inside a spec, and thus be conditionalized. It takes | |
8026 | one argument, the filename, and looks for it in the startfile path. | |
8027 | The result is always NULL, i.e. an empty expansion. */ | |
8028 | ||
8029 | static const char * | |
8030 | include_spec_function (int argc, const char **argv) | |
8031 | { | |
8032 | char *file; | |
8033 | ||
8034 | if (argc != 1) | |
8035 | abort (); | |
8036 | ||
4d2b059d | 8037 | file = find_a_file (&startfile_prefixes, argv[0], R_OK, true); |
953ff289 DN |
8038 | read_specs (file ? file : argv[0], FALSE); |
8039 | ||
8040 | return NULL; | |
8041 | } | |
a0f87454 | 8042 | |
c1ce46a5 | 8043 | /* %:find-file spec function. This function replaces its argument by |
4adbd5dd MK |
8044 | the file found thru find_file, that is the -print-file-name gcc |
8045 | program option. */ | |
8046 | static const char * | |
c1ce46a5 | 8047 | find_file_spec_function (int argc, const char **argv) |
4adbd5dd MK |
8048 | { |
8049 | const char *file; | |
8050 | ||
8051 | if (argc != 1) | |
8052 | abort (); | |
8053 | ||
8054 | file = find_file (argv[0]); | |
8055 | return file; | |
8056 | } | |
8057 | ||
8058 | ||
c1ce46a5 MK |
8059 | /* %:find-plugindir spec function. This function replaces its argument |
8060 | by the -iplugindir=<dir> option. `dir' is found thru find_file, that | |
8061 | is the -print-file-name gcc program option. */ | |
8062 | static const char * | |
8063 | find_plugindir_spec_function (int argc, const char **argv ATTRIBUTE_UNUSED) | |
8064 | { | |
8065 | const char *option; | |
8066 | ||
8067 | if (argc != 0) | |
8068 | abort (); | |
8069 | ||
8070 | option = concat ("-iplugindir=", find_file ("plugin"), NULL); | |
8071 | return option; | |
8072 | } | |
8073 | ||
8074 | ||
a0f87454 RS |
8075 | /* %:print-asm-header spec function. Print a banner to say that the |
8076 | following output is from the assembler. */ | |
8077 | ||
8078 | static const char * | |
8079 | print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED, | |
8080 | const char **argv ATTRIBUTE_UNUSED) | |
8081 | { | |
4dad0aca | 8082 | printf (_("Assembler options\n=================\n\n")); |
a0f87454 RS |
8083 | printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n")); |
8084 | fflush (stdout); | |
8085 | return NULL; | |
8086 | } | |
2153915d | 8087 | |
b5b8b0ac AO |
8088 | /* Compute a timestamp to initialize flag_random_seed. */ |
8089 | ||
8090 | static unsigned | |
8091 | get_local_tick (void) | |
8092 | { | |
8093 | unsigned ret = 0; | |
8094 | ||
8095 | /* Get some more or less random data. */ | |
8096 | #ifdef HAVE_GETTIMEOFDAY | |
8097 | { | |
8098 | struct timeval tv; | |
8099 | ||
8100 | gettimeofday (&tv, NULL); | |
8101 | ret = tv.tv_sec * 1000 + tv.tv_usec / 1000; | |
8102 | } | |
8103 | #else | |
8104 | { | |
8105 | time_t now = time (NULL); | |
8106 | ||
8107 | if (now != (time_t)-1) | |
8108 | ret = (unsigned) now; | |
8109 | } | |
8110 | #endif | |
8111 | ||
8112 | return ret; | |
8113 | } | |
8114 | ||
2153915d AO |
8115 | /* %:compare-debug-dump-opt spec function. Save the last argument, |
8116 | expected to be the last -fdump-final-insns option, or generate a | |
8117 | temporary. */ | |
8118 | ||
8119 | static const char * | |
8120 | compare_debug_dump_opt_spec_function (int arg, | |
8121 | const char **argv ATTRIBUTE_UNUSED) | |
8122 | { | |
8123 | const char *ret; | |
8124 | char *name; | |
8125 | int which; | |
b5b8b0ac | 8126 | static char random_seed[HOST_BITS_PER_WIDE_INT / 4 + 3]; |
2153915d AO |
8127 | |
8128 | if (arg != 0) | |
2dec80c7 | 8129 | fatal_error ("too many arguments to %%:compare-debug-dump-opt"); |
2153915d | 8130 | |
2153915d AO |
8131 | do_spec_2 ("%{fdump-final-insns=*:%*}"); |
8132 | do_spec_1 (" ", 0, NULL); | |
8133 | ||
5b634ee0 JM |
8134 | if (VEC_length (const_char_p, argbuf) > 0 |
8135 | && strcmp (argv[VEC_length (const_char_p, argbuf) - 1], ".")) | |
2153915d | 8136 | { |
b5b8b0ac AO |
8137 | if (!compare_debug) |
8138 | return NULL; | |
8139 | ||
5b634ee0 | 8140 | name = xstrdup (argv[VEC_length (const_char_p, argbuf) - 1]); |
2153915d AO |
8141 | ret = NULL; |
8142 | } | |
8143 | else | |
8144 | { | |
b5b8b0ac AO |
8145 | const char *ext = NULL; |
8146 | ||
5b634ee0 | 8147 | if (VEC_length (const_char_p, argbuf) > 0) |
b5b8b0ac AO |
8148 | { |
8149 | do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}"); | |
8150 | ext = ".gkd"; | |
8151 | } | |
8152 | else if (!compare_debug) | |
8153 | return NULL; | |
8154 | else | |
8155 | do_spec_2 ("%g.gkd"); | |
2153915d | 8156 | |
2153915d | 8157 | do_spec_1 (" ", 0, NULL); |
2153915d | 8158 | |
5b634ee0 | 8159 | gcc_assert (VEC_length (const_char_p, argbuf) > 0); |
2153915d | 8160 | |
5b634ee0 | 8161 | name = concat (VEC_last (const_char_p, argbuf), ext, NULL); |
b5b8b0ac AO |
8162 | |
8163 | ret = concat ("-fdump-final-insns=", name, NULL); | |
2153915d AO |
8164 | } |
8165 | ||
8166 | which = compare_debug < 0; | |
8167 | debug_check_temp_file[which] = name; | |
8168 | ||
b5b8b0ac AO |
8169 | if (!which) |
8170 | { | |
8171 | unsigned HOST_WIDE_INT value = get_local_tick () ^ getpid (); | |
8172 | ||
8173 | sprintf (random_seed, HOST_WIDE_INT_PRINT_HEX, value); | |
8174 | } | |
8175 | ||
8176 | if (*random_seed) | |
8177 | ret = concat ("%{!frandom-seed=*:-frandom-seed=", random_seed, "} ", | |
8178 | ret, NULL); | |
8179 | ||
8180 | if (which) | |
8181 | *random_seed = 0; | |
2153915d AO |
8182 | |
8183 | return ret; | |
8184 | } | |
8185 | ||
8186 | static const char *debug_auxbase_opt; | |
8187 | ||
8188 | /* %:compare-debug-self-opt spec function. Expands to the options | |
8189 | that are to be passed in the second compilation of | |
8190 | compare-debug. */ | |
8191 | ||
8192 | static const char * | |
8193 | compare_debug_self_opt_spec_function (int arg, | |
8194 | const char **argv ATTRIBUTE_UNUSED) | |
8195 | { | |
8196 | if (arg != 0) | |
2dec80c7 | 8197 | fatal_error ("too many arguments to %%:compare-debug-self-opt"); |
2153915d AO |
8198 | |
8199 | if (compare_debug >= 0) | |
8200 | return NULL; | |
8201 | ||
8202 | do_spec_2 ("%{c|S:%{o*:%*}}"); | |
8203 | do_spec_1 (" ", 0, NULL); | |
8204 | ||
5b634ee0 | 8205 | if (VEC_length (const_char_p, argbuf) > 0) |
2153915d | 8206 | debug_auxbase_opt = concat ("-auxbase-strip ", |
5b634ee0 | 8207 | VEC_last (const_char_p, argbuf), |
2153915d AO |
8208 | NULL); |
8209 | else | |
8210 | debug_auxbase_opt = NULL; | |
8211 | ||
8212 | return concat ("\ | |
8213 | %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \ | |
8214 | %<fdump-final-insns=* -w -S -o %j \ | |
8215 | %{!fcompare-debug-second:-fcompare-debug-second} \ | |
8216 | ", compare_debug_opt, NULL); | |
8217 | } | |
8218 | ||
8219 | /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase | |
8220 | options that are to be passed in the second compilation of | |
8221 | compare-debug. It expects, as an argument, the basename of the | |
8222 | current input file name, with the .gk suffix appended to it. */ | |
8223 | ||
8224 | static const char * | |
8225 | compare_debug_auxbase_opt_spec_function (int arg, | |
8226 | const char **argv) | |
8227 | { | |
8228 | char *name; | |
8229 | int len; | |
8230 | ||
8231 | if (arg == 0) | |
2dec80c7 | 8232 | fatal_error ("too few arguments to %%:compare-debug-auxbase-opt"); |
2153915d AO |
8233 | |
8234 | if (arg != 1) | |
2dec80c7 | 8235 | fatal_error ("too many arguments to %%:compare-debug-auxbase-opt"); |
2153915d AO |
8236 | |
8237 | if (compare_debug >= 0) | |
8238 | return NULL; | |
8239 | ||
8240 | len = strlen (argv[0]); | |
8241 | if (len < 3 || strcmp (argv[0] + len - 3, ".gk") != 0) | |
2dec80c7 JM |
8242 | fatal_error ("argument to %%:compare-debug-auxbase-opt " |
8243 | "does not end in .gk"); | |
2153915d AO |
8244 | |
8245 | if (debug_auxbase_opt) | |
8246 | return debug_auxbase_opt; | |
8247 | ||
8248 | #define OPT "-auxbase " | |
8249 | ||
8250 | len -= 3; | |
8251 | name = (char*) xmalloc (sizeof (OPT) + len); | |
8252 | memcpy (name, OPT, sizeof (OPT) - 1); | |
8253 | memcpy (name + sizeof (OPT) - 1, argv[0], len); | |
8254 | name[sizeof (OPT) - 1 + len] = '\0'; | |
8255 | ||
b5b8b0ac AO |
8256 | #undef OPT |
8257 | ||
2153915d AO |
8258 | return name; |
8259 | } | |
9a37bc07 DK |
8260 | |
8261 | /* %:pass-through-libs spec function. Finds all -l options and input | |
8262 | file names in the lib spec passed to it, and makes a list of them | |
8263 | prepended with the plugin option to cause them to be passed through | |
8264 | to the final link after all the new object files have been added. */ | |
8265 | ||
8266 | const char * | |
8267 | pass_through_libs_spec_func (int argc, const char **argv) | |
8268 | { | |
8269 | char *prepended = xstrdup (" "); | |
8270 | int n; | |
8271 | /* Shlemiel the painter's algorithm. Innately horrible, but at least | |
8272 | we know that there will never be more than a handful of strings to | |
8273 | concat, and it's only once per run, so it's not worth optimising. */ | |
8274 | for (n = 0; n < argc; n++) | |
8275 | { | |
8276 | char *old = prepended; | |
8277 | /* Anything that isn't an option is a full path to an output | |
8278 | file; pass it through if it ends in '.a'. Among options, | |
8279 | pass only -l. */ | |
8280 | if (argv[n][0] == '-' && argv[n][1] == 'l') | |
8281 | { | |
8282 | const char *lopt = argv[n] + 2; | |
8283 | /* Handle both joined and non-joined -l options. If for any | |
8284 | reason there's a trailing -l with no joined or following | |
8285 | arg just discard it. */ | |
8286 | if (!*lopt && ++n >= argc) | |
8287 | break; | |
8288 | else if (!*lopt) | |
8289 | lopt = argv[n]; | |
8290 | prepended = concat (prepended, "-plugin-opt=-pass-through=-l", | |
8291 | lopt, " ", NULL); | |
8292 | } | |
8293 | else if (!strcmp (".a", argv[n] + strlen (argv[n]) - 2)) | |
8294 | { | |
8295 | prepended = concat (prepended, "-plugin-opt=-pass-through=", | |
8296 | argv[n], " ", NULL); | |
8297 | } | |
8298 | if (prepended != old) | |
8299 | free (old); | |
8300 | } | |
8301 | return prepended; | |
8302 | } |