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d7a9644e | 1 | /* Compiler driver program that can handle many languages. |
711789cc | 2 | Copyright (C) 1987-2013 Free Software Foundation, Inc. |
d7a9644e | 3 | |
f12b58b3 | 4 | This file is part of GCC. |
d7a9644e | 5 | |
f12b58b3 | 6 | GCC is free software; you can redistribute it and/or modify it under |
7 | the terms of the GNU General Public License as published by the Free | |
8c4c00c1 | 8 | Software Foundation; either version 3, or (at your option) any later |
f12b58b3 | 9 | version. |
d7a9644e | 10 | |
f12b58b3 | 11 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 | for more details. | |
d7a9644e | 15 | |
16 | You should have received a copy of the GNU General Public License | |
8c4c00c1 | 17 | along with GCC; see the file COPYING3. If not see |
3d70fb39 | 18 | <http://www.gnu.org/licenses/>. */ |
d7a9644e | 19 | |
20 | /* This program is the user interface to the C compiler and possibly to | |
21 | other compilers. It is used because compilation is a complicated procedure | |
22 | which involves running several programs and passing temporary files between | |
23 | them, forwarding the users switches to those programs selectively, | |
24 | and deleting the temporary files at the end. | |
25 | ||
26 | CC recognizes how to compile each input file by suffixes in the file names. | |
27 | Once it knows which kind of compilation to perform, the procedure for | |
28 | compilation is specified by a string called a "spec". */ | |
7014838c | 29 | |
0dbd1c74 | 30 | #include "config.h" |
405711de | 31 | #include "system.h" |
805e22b2 | 32 | #include "coretypes.h" |
0a2326d6 | 33 | #include "multilib.h" /* before tm.h */ |
805e22b2 | 34 | #include "tm.h" |
9b1f316f | 35 | #include "xregex.h" |
fe8833f8 | 36 | #include "obstack.h" |
be2828ce | 37 | #include "intl.h" |
7bcdc3c7 | 38 | #include "prefix.h" |
7f0b0c27 | 39 | #include "gcc.h" |
460b8bb3 | 40 | #include "diagnostic.h" |
a6a0d17a | 41 | #include "flags.h" |
a1baa5f1 | 42 | #include "opts.h" |
90336809 | 43 | #include "params.h" |
9d9edc85 | 44 | #include "vec.h" |
82715bcd | 45 | #include "filenames.h" |
4ee8d66a | 46 | |
10f57222 | 47 | /* By default there is no special suffix for target executables. */ |
48 | /* FIXME: when autoconf is fixed, remove the host check - dj */ | |
49 | #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX) | |
50 | #define HAVE_TARGET_EXECUTABLE_SUFFIX | |
d7a9644e | 51 | #endif |
99b832c9 | 52 | |
10f57222 | 53 | /* By default there is no special suffix for host executables. */ |
54 | #ifdef HOST_EXECUTABLE_SUFFIX | |
55 | #define HAVE_HOST_EXECUTABLE_SUFFIX | |
9ec04dd9 | 56 | #else |
10f57222 | 57 | #define HOST_EXECUTABLE_SUFFIX "" |
58 | #endif | |
59 | ||
60 | /* By default, the suffix for target object files is ".o". */ | |
61 | #ifdef TARGET_OBJECT_SUFFIX | |
62 | #define HAVE_TARGET_OBJECT_SUFFIX | |
63 | #else | |
64 | #define TARGET_OBJECT_SUFFIX ".o" | |
499a0933 | 65 | #endif |
66 | ||
e99c3a1d | 67 | static const char dir_separator_str[] = { DIR_SEPARATOR, 0 }; |
b9374a77 | 68 | |
397f1574 | 69 | /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */ |
70 | #ifndef LIBRARY_PATH_ENV | |
71 | #define LIBRARY_PATH_ENV "LIBRARY_PATH" | |
72 | #endif | |
73 | ||
d7a9644e | 74 | /* If a stage of compilation returns an exit status >= 1, |
75 | compilation of that file ceases. */ | |
76 | ||
77 | #define MIN_FATAL_STATUS 1 | |
78 | ||
258d3911 | 79 | /* Flag set by cppspec.c to 1. */ |
80 | int is_cpp_driver; | |
81 | ||
80777cd8 | 82 | /* Flag set to nonzero if an @file argument has been supplied to gcc. */ |
c159e0b7 | 83 | static bool at_file_supplied; |
84 | ||
4a0e2d42 | 85 | /* Definition of string containing the arguments given to configure. */ |
86 | #include "configargs.h" | |
87 | ||
8ace789a | 88 | /* Flag saying to print the command line options understood by gcc and its |
89 | sub-processes. */ | |
90 | ||
91 | static int print_help_list; | |
92 | ||
39932bd2 | 93 | /* Flag saying to print the version of gcc and its sub-processes. */ |
94 | ||
95 | static int print_version; | |
96 | ||
74e4079a | 97 | /* Flag indicating whether we should ONLY print the command and |
98 | arguments (like verbose_flag) without executing the command. | |
99 | Displayed arguments are quoted so that the generated command | |
100 | line is suitable for execution. This is intended for use in | |
101 | shell scripts to capture the driver-generated command line. */ | |
102 | static int verbose_only_flag; | |
103 | ||
87c75316 | 104 | /* Flag indicating how to print command line options of sub-processes. */ |
7a6882ca | 105 | |
87c75316 | 106 | static int print_subprocess_help; |
7a6882ca | 107 | |
4537c5d9 | 108 | /* Whether we should report subprocess execution times to a file. */ |
109 | ||
110 | FILE *report_times_to_file = NULL; | |
111 | ||
805e22b2 | 112 | /* Nonzero means place this string before uses of /, so that include |
113 | and library files can be found in an alternate location. */ | |
114 | ||
d68c6656 | 115 | #ifdef TARGET_SYSTEM_ROOT |
805e22b2 | 116 | static const char *target_system_root = TARGET_SYSTEM_ROOT; |
d68c6656 | 117 | #else |
118 | static const char *target_system_root = 0; | |
119 | #endif | |
805e22b2 | 120 | |
17acc97a | 121 | /* Nonzero means pass the updated target_system_root to the compiler. */ |
122 | ||
123 | static int target_system_root_changed; | |
124 | ||
4ea70922 | 125 | /* Nonzero means append this string to target_system_root. */ |
126 | ||
127 | static const char *target_sysroot_suffix = 0; | |
128 | ||
129 | /* Nonzero means append this string to target_system_root for headers. */ | |
130 | ||
131 | static const char *target_sysroot_hdrs_suffix = 0; | |
132 | ||
d7a9644e | 133 | /* Nonzero means write "temp" files in source directory |
134 | and use the source file's name in them, and don't delete them. */ | |
135 | ||
cc92bc82 | 136 | static enum save_temps { |
137 | SAVE_TEMPS_NONE, /* no -save-temps */ | |
138 | SAVE_TEMPS_CWD, /* -save-temps in current directory */ | |
139 | SAVE_TEMPS_OBJ /* -save-temps in object directory */ | |
140 | } save_temps_flag; | |
141 | ||
142 | /* Output file to use to get the object directory for -save-temps=obj */ | |
143 | static char *save_temps_prefix = 0; | |
144 | static size_t save_temps_length = 0; | |
d7a9644e | 145 | |
4dd56bd9 | 146 | /* The compiler version. */ |
d7a9644e | 147 | |
e772a198 | 148 | static const char *compiler_version; |
4dd56bd9 | 149 | |
cf93b7e8 | 150 | /* The target version. */ |
4dd56bd9 | 151 | |
3443e1be | 152 | static const char *const spec_version = DEFAULT_TARGET_VERSION; |
d7a9644e | 153 | |
cf93b7e8 | 154 | /* The target machine. */ |
d7a9644e | 155 | |
e40d43cc | 156 | static const char *spec_machine = DEFAULT_TARGET_MACHINE; |
d7a9644e | 157 | |
a45072dd | 158 | /* Nonzero if cross-compiling. |
159 | When -b is used, the value comes from the `specs' file. */ | |
160 | ||
29d774d0 | 161 | #ifdef CROSS_DIRECTORY_STRUCTURE |
e772a198 | 162 | static const char *cross_compile = "1"; |
a45072dd | 163 | #else |
e772a198 | 164 | static const char *cross_compile = "0"; |
a45072dd | 165 | #endif |
166 | ||
155b05dc | 167 | /* Greatest exit code of sub-processes that has been encountered up to |
168 | now. */ | |
169 | static int greatest_status = 1; | |
170 | ||
d7a9644e | 171 | /* This is the obstack which we use to allocate many strings. */ |
172 | ||
173 | static struct obstack obstack; | |
174 | ||
8894538a | 175 | /* This is the obstack to build an environment variable to pass to |
4bbea254 | 176 | collect2 that describes all of the relevant switches of what to |
8894538a | 177 | pass the compiler in building the list of pointers to constructors |
178 | and destructors. */ | |
179 | ||
180 | static struct obstack collect_obstack; | |
181 | ||
cbc3c863 | 182 | /* Forward declaration for prototypes. */ |
183 | struct path_prefix; | |
42bbc7e6 | 184 | struct prefix_list; |
cbc3c863 | 185 | |
952f0048 | 186 | static void init_spec (void); |
187 | static void store_arg (const char *, int, int); | |
0bfd146e | 188 | static void insert_wrapper (const char *); |
952f0048 | 189 | static char *load_specs (const char *); |
556cfe53 | 190 | static void read_specs (const char *, bool, bool); |
191 | static void set_spec (const char *, const char *, bool); | |
952f0048 | 192 | static struct compiler *lookup_compiler (const char *, size_t, const char *); |
067277c3 | 193 | static char *build_search_list (const struct path_prefix *, const char *, |
194 | bool, bool); | |
e8105390 | 195 | static void xputenv (const char *); |
067277c3 | 196 | static void putenv_from_prefixes (const struct path_prefix *, const char *, |
197 | bool); | |
952f0048 | 198 | static int access_check (const char *, int); |
067277c3 | 199 | static char *find_a_file (const struct path_prefix *, const char *, int, bool); |
952f0048 | 200 | static void add_prefix (struct path_prefix *, const char *, const char *, |
2af84186 | 201 | int, int, int); |
952f0048 | 202 | static void add_sysrooted_prefix (struct path_prefix *, const char *, |
2af84186 | 203 | const char *, int, int, int); |
952f0048 | 204 | static char *skip_whitespace (char *); |
205 | static void delete_if_ordinary (const char *); | |
206 | static void delete_temp_files (void); | |
207 | static void delete_failure_queue (void); | |
208 | static void clear_failure_queue (void); | |
209 | static int check_live_switch (int, int); | |
210 | static const char *handle_braces (const char *); | |
211 | static inline bool input_suffix_matches (const char *, const char *); | |
212 | static inline bool switch_matches (const char *, const char *, int); | |
213 | static inline void mark_matching_switches (const char *, const char *, int); | |
214 | static inline void process_marked_switches (void); | |
215 | static const char *process_brace_body (const char *, const char *, const char *, int, int); | |
216 | static const struct spec_function *lookup_spec_function (const char *); | |
217 | static const char *eval_spec_function (const char *, const char *); | |
9e46467d | 218 | static const char *handle_spec_function (const char *, bool *); |
952f0048 | 219 | static char *save_string (const char *, int); |
220 | static void set_collect_gcc_options (void); | |
221 | static int do_spec_1 (const char *, int, const char *); | |
222 | static int do_spec_2 (const char *); | |
223 | static void do_option_spec (const char *, const char *); | |
224 | static void do_self_spec (const char *); | |
225 | static const char *find_file (const char *); | |
067277c3 | 226 | static int is_directory (const char *, bool); |
556cfe53 | 227 | static const char *validate_switches (const char *, bool); |
952f0048 | 228 | static void validate_all_switches (void); |
556cfe53 | 229 | static inline void validate_switches_from_spec (const char *, bool); |
952f0048 | 230 | static void give_switch (int, int); |
231 | static int used_arg (const char *, int); | |
232 | static int default_arg (const char *, int); | |
233 | static void set_multilib_dir (void); | |
234 | static void print_multilib_info (void); | |
235 | static void perror_with_name (const char *); | |
952f0048 | 236 | static void display_help (void); |
237 | static void add_preprocessor_option (const char *, int); | |
238 | static void add_assembler_option (const char *, int); | |
239 | static void add_linker_option (const char *, int); | |
e62df35b | 240 | static void process_command (unsigned int, struct cl_decoded_option *); |
952f0048 | 241 | static int execute (void); |
242 | static void alloc_args (void); | |
243 | static void clear_args (void); | |
a922df2e | 244 | static void fatal_signal (int); |
ecbfdc87 | 245 | #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC) |
952f0048 | 246 | static void init_gcc_specs (struct obstack *, const char *, const char *, |
247 | const char *); | |
b51d5c7c | 248 | #endif |
7e6b5e54 | 249 | #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX) |
952f0048 | 250 | static const char *convert_filename (const char *, int, int); |
7e6b5e54 | 251 | #endif |
c21b3276 | 252 | |
0305c755 | 253 | static const char *getenv_spec_function (int, const char **); |
952f0048 | 254 | static const char *if_exists_spec_function (int, const char **); |
255 | static const char *if_exists_else_spec_function (int, const char **); | |
9e46467d | 256 | static const char *sanitize_spec_function (int, const char **); |
2288041e | 257 | static const char *replace_outfile_spec_function (int, const char **); |
8127ab5d | 258 | static const char *remove_outfile_spec_function (int, const char **); |
9b1f316f | 259 | static const char *version_compare_spec_function (int, const char **); |
1e8e9920 | 260 | static const char *include_spec_function (int, const char **); |
19bc000d | 261 | static const char *find_file_spec_function (int, const char **); |
d6bff3e6 | 262 | static const char *find_plugindir_spec_function (int, const char **); |
ceac8e8c | 263 | static const char *print_asm_header_spec_function (int, const char **); |
71278019 | 264 | static const char *compare_debug_dump_opt_spec_function (int, const char **); |
265 | static const char *compare_debug_self_opt_spec_function (int, const char **); | |
266 | static const char *compare_debug_auxbase_opt_spec_function (int, const char **); | |
280f8649 | 267 | static const char *pass_through_libs_spec_func (int, const char **); |
b35329c7 | 268 | static const char *replace_extension_spec_func (int, const char **); |
40c059b1 | 269 | static char *convert_white_space (char *); |
d7a9644e | 270 | \f |
833a5c07 | 271 | /* The Specs Language |
272 | ||
273 | Specs are strings containing lines, each of which (if not blank) | |
d7a9644e | 274 | is made up of a program name, and arguments separated by spaces. |
275 | The program name must be exact and start from root, since no path | |
276 | is searched and it is unreliable to depend on the current working directory. | |
277 | Redirection of input or output is not supported; the subprograms must | |
278 | accept filenames saying what files to read and write. | |
279 | ||
280 | In addition, the specs can contain %-sequences to substitute variable text | |
281 | or for conditional text. Here is a table of all defined %-sequences. | |
282 | Note that spaces are not generated automatically around the results of | |
283 | expanding these sequences; therefore, you can concatenate them together | |
284 | or with constant text in a single argument. | |
285 | ||
286 | %% substitute one % into the program name or argument. | |
287 | %i substitute the name of the input file being processed. | |
288 | %b substitute the basename of the input file being processed. | |
289 | This is the substring up to (and not including) the last period | |
cc92bc82 | 290 | and not including the directory unless -save-temps was specified |
d7ee9e9b | 291 | to put temporaries in a different location. |
1cf79a1a | 292 | %B same as %b, but include the file suffix (text after the last period). |
c78c5ee7 | 293 | %gSUFFIX |
294 | substitute a file name that has suffix SUFFIX and is chosen | |
295 | once per compilation, and mark the argument a la %d. To reduce | |
296 | exposure to denial-of-service attacks, the file name is now | |
297 | chosen in a way that is hard to predict even when previously | |
298 | chosen file names are known. For example, `%g.s ... %g.o ... %g.s' | |
299 | might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches | |
b78b6a05 | 300 | the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it |
2c2aaf10 | 301 | had been pre-processed. Previously, %g was simply substituted |
302 | with a file name chosen once per compilation, without regard | |
303 | to any appended suffix (which was therefore treated just like | |
304 | ordinary text), making such attacks more likely to succeed. | |
805e22b2 | 305 | %|SUFFIX |
306 | like %g, but if -pipe is in effect, expands simply to "-". | |
307 | %mSUFFIX | |
308 | like %g, but if -pipe is in effect, expands to nothing. (We have both | |
309 | %| and %m to accommodate differences between system assemblers; see | |
310 | the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.) | |
c78c5ee7 | 311 | %uSUFFIX |
312 | like %g, but generates a new temporary file name even if %uSUFFIX | |
313 | was already seen. | |
314 | %USUFFIX | |
315 | substitutes the last file name generated with %uSUFFIX, generating a | |
316 | new one if there is no such last file name. In the absence of any | |
317 | %uSUFFIX, this is just like %gSUFFIX, except they don't share | |
318 | the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s' | |
319 | would involve the generation of two distinct file names, one | |
320 | for each `%g.s' and another for each `%U.s'. Previously, %U was | |
321 | simply substituted with a file name chosen for the previous %u, | |
322 | without regard to any appended suffix. | |
655a58fa | 323 | %jSUFFIX |
324 | substitutes the name of the HOST_BIT_BUCKET, if any, and if it is | |
325 | writable, and if save-temps is off; otherwise, substitute the name | |
326 | of a temporary file, just like %u. This temporary file is not | |
327 | meant for communication between processes, but rather as a junk | |
328 | disposal mechanism. | |
bdbd5352 | 329 | %.SUFFIX |
330 | substitutes .SUFFIX for the suffixes of a matched switch's args when | |
331 | it is subsequently output with %*. SUFFIX is terminated by the next | |
332 | space or %. | |
d7a9644e | 333 | %d marks the argument containing or following the %d as a |
c68bcf58 | 334 | temporary file name, so that that file will be deleted if GCC exits |
d7a9644e | 335 | successfully. Unlike %g, this contributes no text to the argument. |
336 | %w marks the argument containing or following the %w as the | |
337 | "output file" of this compilation. This puts the argument | |
338 | into the sequence of arguments that %o will substitute later. | |
573aba85 | 339 | %V indicates that this compilation produces no "output file". |
d7a9644e | 340 | %W{...} |
341 | like %{...} but mark last argument supplied within | |
342 | as a file to be deleted on failure. | |
343 | %o substitutes the names of all the output files, with spaces | |
344 | automatically placed around them. You should write spaces | |
345 | around the %o as well or the results are undefined. | |
346 | %o is for use in the specs for running the linker. | |
347 | Input files whose names have no recognized suffix are not compiled | |
348 | at all, but they are included among the output files, so they will | |
349 | be linked. | |
c78c5ee7 | 350 | %O substitutes the suffix for object files. Note that this is |
2c2aaf10 | 351 | handled specially when it immediately follows %g, %u, or %U |
352 | (with or without a suffix argument) because of the need for | |
353 | those to form complete file names. The handling is such that | |
354 | %O is treated exactly as if it had already been substituted, | |
355 | except that %g, %u, and %U do not currently support additional | |
356 | SUFFIX characters following %O as they would following, for | |
357 | example, `.o'. | |
17acc97a | 358 | %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot |
72779020 | 359 | (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH |
360 | and -B options) and -imultilib as necessary. | |
d7a9644e | 361 | %s current argument is the name of a library or startup file of some sort. |
362 | Search for that file in a standard list of directories | |
363 | and substitute the full name found. | |
364 | %eSTR Print STR as an error message. STR is terminated by a newline. | |
365 | Use this when inconsistent options are detected. | |
edc2a478 | 366 | %nSTR Print STR as a notice. STR is terminated by a newline. |
d7a9644e | 367 | %x{OPTION} Accumulate an option for %X. |
368 | %X Output the accumulated linker options specified by compilations. | |
69587571 | 369 | %Y Output the accumulated assembler options specified by compilations. |
391d9b6e | 370 | %Z Output the accumulated preprocessor options specified by compilations. |
d7a9644e | 371 | %a process ASM_SPEC as a spec. |
372 | This allows config.h to specify part of the spec for running as. | |
373 | %A process ASM_FINAL_SPEC as a spec. A capital A is actually | |
374 | used here. This can be used to run a post-processor after the | |
9e042f31 | 375 | assembler has done its job. |
b9374a77 | 376 | %D Dump out a -L option for each directory in startfile_prefixes. |
9577d478 | 377 | If multilib_dir is set, extra entries are generated with it affixed. |
d7a9644e | 378 | %l process LINK_SPEC as a spec. |
379 | %L process LIB_SPEC as a spec. | |
c93570ad | 380 | %M Output multilib_os_dir. |
b7c87ff2 | 381 | %G process LIBGCC_SPEC as a spec. |
b6bcc48f | 382 | %R Output the concatenation of target_system_root and |
383 | target_sysroot_suffix. | |
d7a9644e | 384 | %S process STARTFILE_SPEC as a spec. A capital S is actually used here. |
385 | %E process ENDFILE_SPEC as a spec. A capital E is actually used here. | |
43198b29 | 386 | %C process CPP_SPEC as a spec. |
d7a9644e | 387 | %1 process CC1_SPEC as a spec. |
388 | %2 process CC1PLUS_SPEC as a spec. | |
389 | %* substitute the variable part of a matched option. (See below.) | |
390 | Note that each comma in the substituted string is replaced by | |
391 | a single space. | |
805e22b2 | 392 | %<S remove all occurrences of -S from the command line. |
393 | Note - this command is position dependent. % commands in the | |
394 | spec string before this one will see -S, % commands in the | |
395 | spec string after this one will not. | |
5c1421d7 | 396 | %>S Similar to "%<S", but keep it in the GCC command line. |
805e22b2 | 397 | %<S* remove all occurrences of all switches beginning with -S from the |
398 | command line. | |
c21b3276 | 399 | %:function(args) |
400 | Call the named function FUNCTION, passing it ARGS. ARGS is | |
401 | first processed as a nested spec string, then split into an | |
402 | argument vector in the usual fashion. The function returns | |
403 | a string which is processed as if it had appeared literally | |
404 | as part of the current spec. | |
c68bcf58 | 405 | %{S} substitutes the -S switch, if that switch was given to GCC. |
d7a9644e | 406 | If that switch was not specified, this substitutes nothing. |
407 | Here S is a metasyntactic variable. | |
c68bcf58 | 408 | %{S*} substitutes all the switches specified to GCC whose names start |
e1478c0f | 409 | with -S. This is used for -o, -I, etc; switches that take |
c68bcf58 | 410 | arguments. GCC considers `-o foo' as being one switch whose |
d7a9644e | 411 | name starts with `o'. %{o*} would substitute this text, |
412 | including the space; thus, two arguments would be generated. | |
e1478c0f | 413 | %{S*&T*} likewise, but preserve order of S and T options (the order |
952f0048 | 414 | of S and T in the spec is not significant). Can be any number |
415 | of ampersand-separated variables; for each the wild card is | |
416 | optional. Useful for CPP as %{D*&U*&A*}. | |
805e22b2 | 417 | |
c68bcf58 | 418 | %{S:X} substitutes X, if the -S switch was given to GCC. |
419 | %{!S:X} substitutes X, if the -S switch was NOT given to GCC. | |
805e22b2 | 420 | %{S*:X} substitutes X if one or more switches whose names start |
c68bcf58 | 421 | with -S was given to GCC. Normally X is substituted only |
805e22b2 | 422 | once, no matter how many such switches appeared. However, |
423 | if %* appears somewhere in X, then X will be substituted | |
424 | once for each matching switch, with the %* replaced by the | |
425 | part of that switch that matched the '*'. | |
426 | %{.S:X} substitutes X, if processing a file with suffix S. | |
427 | %{!.S:X} substitutes X, if NOT processing a file with suffix S. | |
90e35d1a | 428 | %{,S:X} substitutes X, if processing a file which will use spec S. |
429 | %{!,S:X} substitutes X, if NOT processing a file which will use spec S. | |
d7ee9e9b | 430 | |
c68bcf58 | 431 | %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be |
90e35d1a | 432 | combined with '!', '.', ',', and '*' as above binding stronger |
433 | than the OR. | |
805e22b2 | 434 | If %* appears in X, all of the alternatives must be starred, and |
435 | only the first matching alternative is substituted. | |
9e46467d | 436 | %{%:function(args):X} |
437 | Call function named FUNCTION with args ARGS. If the function | |
438 | returns non-NULL, then X is substituted, if it returns | |
439 | NULL, it isn't substituted. | |
c68bcf58 | 440 | %{S:X; if S was given to GCC, substitutes X; |
441 | T:Y; else if T was given to GCC, substitutes Y; | |
805e22b2 | 442 | :D} else substitutes D. There can be as many clauses as you need. |
90e35d1a | 443 | This may be combined with '.', '!', ',', '|', and '*' as above. |
805e22b2 | 444 | |
8894538a | 445 | %(Spec) processes a specification defined in a specs file as *Spec: |
d7a9644e | 446 | |
805e22b2 | 447 | The conditional text X in a %{S:X} or similar construct may contain |
d7a9644e | 448 | other nested % constructs or spaces, or even newlines. They are |
805e22b2 | 449 | processed as usual, as described above. Trailing white space in X is |
450 | ignored. White space may also appear anywhere on the left side of the | |
451 | colon in these constructs, except between . or * and the corresponding | |
452 | word. | |
d7a9644e | 453 | |
b35329c7 | 454 | The -O, -f, -g, -m, and -W switches are handled specifically in these |
cde688ab | 455 | constructs. If another value of -O or the negated form of a -f, -m, or |
456 | -W switch is found later in the command line, the earlier switch | |
d870e215 | 457 | value is ignored, except with {S*} where S is just one letter; this |
458 | passes all matching options. | |
cde688ab | 459 | |
ae70654c | 460 | The character | at the beginning of the predicate text is used to indicate |
461 | that a command should be piped to the following command, but only if -pipe | |
462 | is specified. | |
d7a9644e | 463 | |
c68bcf58 | 464 | Note that it is built into GCC which switches take arguments and which |
d7a9644e | 465 | do not. You might think it would be useful to generalize this to |
466 | allow each compiler's spec to say which switches take arguments. But | |
c68bcf58 | 467 | this cannot be done in a consistent fashion. GCC cannot even decide |
d7a9644e | 468 | which input files have been specified without knowing which switches |
469 | take arguments, and it must know which input files to compile in order | |
470 | to tell which compilers to run. | |
471 | ||
c68bcf58 | 472 | GCC also knows implicitly that arguments starting in `-l' are to be |
d7a9644e | 473 | treated as compiler output files, and passed to the linker in their |
474 | proper position among the other output files. */ | |
475 | \f | |
537c4bc6 | 476 | /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */ |
d7a9644e | 477 | |
478 | /* config.h can define ASM_SPEC to provide extra args to the assembler | |
479 | or extra switch-translations. */ | |
480 | #ifndef ASM_SPEC | |
481 | #define ASM_SPEC "" | |
482 | #endif | |
483 | ||
484 | /* config.h can define ASM_FINAL_SPEC to run a post processor after | |
485 | the assembler has run. */ | |
486 | #ifndef ASM_FINAL_SPEC | |
b35329c7 | 487 | #define ASM_FINAL_SPEC \ |
488 | "%{gsplit-dwarf: \n\ | |
489 | objcopy --extract-dwo \ | |
490 | %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \ | |
491 | %{c:%{o*:%:replace-extension(%{o*:%*} .dwo)}%{!o*:%b.dwo}}%{!c:%b.dwo} \n\ | |
492 | objcopy --strip-dwo \ | |
493 | %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \ | |
494 | }" | |
d7a9644e | 495 | #endif |
496 | ||
497 | /* config.h can define CPP_SPEC to provide extra args to the C preprocessor | |
498 | or extra switch-translations. */ | |
499 | #ifndef CPP_SPEC | |
500 | #define CPP_SPEC "" | |
501 | #endif | |
502 | ||
503 | /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus | |
504 | or extra switch-translations. */ | |
505 | #ifndef CC1_SPEC | |
506 | #define CC1_SPEC "" | |
507 | #endif | |
508 | ||
509 | /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus | |
510 | or extra switch-translations. */ | |
511 | #ifndef CC1PLUS_SPEC | |
512 | #define CC1PLUS_SPEC "" | |
513 | #endif | |
514 | ||
515 | /* config.h can define LINK_SPEC to provide extra args to the linker | |
516 | or extra switch-translations. */ | |
517 | #ifndef LINK_SPEC | |
518 | #define LINK_SPEC "" | |
519 | #endif | |
520 | ||
521 | /* config.h can define LIB_SPEC to override the default libraries. */ | |
522 | #ifndef LIB_SPEC | |
b7c87ff2 | 523 | #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}" |
524 | #endif | |
525 | ||
4ee9c684 | 526 | /* mudflap specs */ |
527 | #ifndef MFWRAP_SPEC | |
528 | /* XXX: valid only for GNU ld */ | |
529 | /* XXX: should exactly match hooks provided by libmudflap.a */ | |
530 | #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \ | |
531 | --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\ | |
1043205d | 532 | --wrap=mmap --wrap=mmap64 --wrap=munmap --wrap=alloca\ |
ee3213a3 | 533 | } %{fmudflapth: --wrap=pthread_create\ |
4ee9c684 | 534 | }} %{fmudflap|fmudflapth: --wrap=main}" |
535 | #endif | |
536 | #ifndef MFLIB_SPEC | |
2f2c6aee | 537 | #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}" |
4ee9c684 | 538 | #endif |
539 | ||
48b14f50 | 540 | /* When using -fsplit-stack we need to wrap pthread_create, in order |
541 | to initialize the stack guard. We always use wrapping, rather than | |
542 | shared library ordering, and we keep the wrapper function in | |
543 | libgcc. This is not yet a real spec, though it could become one; | |
544 | it is currently just stuffed into LINK_SPEC. FIXME: This wrapping | |
545 | only works with GNU ld and gold. FIXME: This is incompatible with | |
546 | -fmudflap when linking statically, which wants to do its own | |
547 | wrapping. */ | |
548 | #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}" | |
549 | ||
6db5160a | 550 | #ifndef LIBASAN_SPEC |
6aea389d | 551 | #ifdef STATIC_LIBASAN_LIBS |
552 | #define ADD_STATIC_LIBASAN_LIBS \ | |
553 | " %{static-libasan:" STATIC_LIBASAN_LIBS "}" | |
554 | #else | |
555 | #define ADD_STATIC_LIBASAN_LIBS | |
556 | #endif | |
53486a83 | 557 | #ifdef LIBASAN_EARLY_SPEC |
558 | #define LIBASAN_SPEC ADD_STATIC_LIBASAN_LIBS | |
559 | #elif defined(HAVE_LD_STATIC_DYNAMIC) | |
6db5160a | 560 | #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \ |
6aea389d | 561 | "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \ |
562 | ADD_STATIC_LIBASAN_LIBS | |
6db5160a | 563 | #else |
6aea389d | 564 | #define LIBASAN_SPEC "-lasan" ADD_STATIC_LIBASAN_LIBS |
6db5160a | 565 | #endif |
566 | #endif | |
567 | ||
53486a83 | 568 | #ifndef LIBASAN_EARLY_SPEC |
569 | #define LIBASAN_EARLY_SPEC "" | |
570 | #endif | |
571 | ||
b077695d | 572 | #ifndef LIBTSAN_SPEC |
5f13745b | 573 | #ifdef STATIC_LIBTSAN_LIBS |
574 | #define ADD_STATIC_LIBTSAN_LIBS \ | |
575 | " %{static-libtsan:" STATIC_LIBTSAN_LIBS "}" | |
576 | #else | |
577 | #define ADD_STATIC_LIBTSAN_LIBS | |
578 | #endif | |
579 | #ifdef LIBTSAN_EARLY_SPEC | |
580 | #define LIBTSAN_SPEC ADD_STATIC_LIBTSAN_LIBS | |
581 | #elif defined(HAVE_LD_STATIC_DYNAMIC) | |
b077695d | 582 | #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \ |
5f13745b | 583 | "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \ |
584 | ADD_STATIC_LIBTSAN_LIBS | |
b077695d | 585 | #else |
5f13745b | 586 | #define LIBTSAN_SPEC "-ltsan" ADD_STATIC_LIBTSAN_LIBS |
587 | #endif | |
b077695d | 588 | #endif |
5f13745b | 589 | |
590 | #ifndef LIBTSAN_EARLY_SPEC | |
591 | #define LIBTSAN_EARLY_SPEC "" | |
b077695d | 592 | #endif |
593 | ||
9e46467d | 594 | #ifndef LIBUBSAN_SPEC |
595 | #ifdef STATIC_LIBUBSAN_LIBS | |
596 | #define ADD_STATIC_LIBUBSAN_LIBS \ | |
597 | " %{static-libubsan:" STATIC_LIBUBSAN_LIBS "}" | |
598 | #else | |
599 | #define ADD_STATIC_LIBUBSAN_LIBS | |
600 | #endif | |
601 | #ifdef LIBUBSAN_EARLY_SPEC | |
602 | #define LIBUBSAN_SPEC ADD_STATIC_LIBUBSAN_LIBS | |
603 | #elif defined(HAVE_LD_STATIC_DYNAMIC) | |
604 | #define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \ | |
605 | "} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION "}" \ | |
606 | ADD_STATIC_LIBUBSAN_LIBS | |
607 | #else | |
608 | #define LIBUBSAN_SPEC "-lubsan" ADD_STATIC_LIBUBSAN_LIBS | |
609 | #endif | |
610 | #endif | |
611 | ||
612 | #ifndef LIBUBSAN_EARLY_SPEC | |
613 | #define LIBUBSAN_EARLY_SPEC "" | |
614 | #endif | |
615 | ||
b7c87ff2 | 616 | /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is |
617 | included. */ | |
618 | #ifndef LIBGCC_SPEC | |
ecbfdc87 | 619 | #if defined(REAL_LIBGCC_SPEC) |
620 | #define LIBGCC_SPEC REAL_LIBGCC_SPEC | |
03829d4a | 621 | #elif defined(LINK_LIBGCC_SPECIAL_1) |
b7c87ff2 | 622 | /* Have gcc do the search for libgcc.a. */ |
21eaebc3 | 623 | #define LIBGCC_SPEC "libgcc.a%s" |
b7c87ff2 | 624 | #else |
21eaebc3 | 625 | #define LIBGCC_SPEC "-lgcc" |
b7c87ff2 | 626 | #endif |
d7a9644e | 627 | #endif |
628 | ||
629 | /* config.h can define STARTFILE_SPEC to override the default crt0 files. */ | |
630 | #ifndef STARTFILE_SPEC | |
631 | #define STARTFILE_SPEC \ | |
995c1b4d | 632 | "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}" |
d7a9644e | 633 | #endif |
634 | ||
d7a9644e | 635 | /* config.h can define ENDFILE_SPEC to override the default crtn files. */ |
636 | #ifndef ENDFILE_SPEC | |
637 | #define ENDFILE_SPEC "" | |
638 | #endif | |
639 | ||
0c787992 | 640 | #ifndef LINKER_NAME |
641 | #define LINKER_NAME "collect2" | |
642 | #endif | |
643 | ||
5f1f2de5 | 644 | #ifdef HAVE_AS_DEBUG_PREFIX_MAP |
645 | #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}" | |
646 | #else | |
647 | #define ASM_MAP "" | |
648 | #endif | |
649 | ||
1a6f9700 | 650 | /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g' |
651 | to the assembler. */ | |
652 | #ifndef ASM_DEBUG_SPEC | |
82505826 | 653 | # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \ |
654 | && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG) | |
5f1f2de5 | 655 | # define ASM_DEBUG_SPEC \ |
656 | (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \ | |
8786b72c | 657 | ? "%{!g0:%{gdwarf*:--gdwarf2}%{!gdwarf*:%{g*:--gstabs}}}" ASM_MAP \ |
674ca8bf | 658 | : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP) |
82505826 | 659 | # else |
660 | # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG) | |
674ca8bf | 661 | # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP |
82505826 | 662 | # endif |
663 | # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) | |
674ca8bf | 664 | # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP |
1a6f9700 | 665 | # endif |
1a6f9700 | 666 | # endif |
667 | #endif | |
a6a0d17a | 668 | #ifndef ASM_DEBUG_SPEC |
669 | # define ASM_DEBUG_SPEC "" | |
670 | #endif | |
1a6f9700 | 671 | |
1cf79a1a | 672 | /* Here is the spec for running the linker, after compiling all files. */ |
673 | ||
da98d114 | 674 | /* This is overridable by the target in case they need to specify the |
675 | -lgcc and -lc order specially, yet not require them to override all | |
676 | of LINK_COMMAND_SPEC. */ | |
677 | #ifndef LINK_GCC_C_SEQUENCE_SPEC | |
678 | #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G" | |
679 | #endif | |
680 | ||
0d55f4d0 | 681 | #ifndef LINK_SSP_SPEC |
682 | #ifdef TARGET_LIBC_PROVIDES_SSP | |
683 | #define LINK_SSP_SPEC "%{fstack-protector:}" | |
684 | #else | |
b156ec37 | 685 | #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-strong|fstack-protector-all:-lssp_nonshared -lssp}" |
0d55f4d0 | 686 | #endif |
687 | #endif | |
688 | ||
c3ce66b0 | 689 | #ifndef LINK_PIE_SPEC |
690 | #ifdef HAVE_LD_PIE | |
691 | #define LINK_PIE_SPEC "%{pie:-pie} " | |
692 | #else | |
693 | #define LINK_PIE_SPEC "%{pie:} " | |
694 | #endif | |
695 | #endif | |
696 | ||
8271b966 | 697 | #ifndef LINK_BUILDID_SPEC |
698 | # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID) | |
699 | # define LINK_BUILDID_SPEC "%{!r:--build-id} " | |
700 | # endif | |
701 | #endif | |
702 | ||
c5f741b3 | 703 | /* Conditional to test whether the LTO plugin is used or not. |
0f8cfb36 | 704 | FIXME: For slim LTO we will need to enable plugin unconditionally. This |
705 | still cause problems with PLUGIN_LD != LD and when plugin is built but | |
706 | not useable. For GCC 4.6 we don't support slim LTO and thus we can enable | |
707 | plugin only when LTO is enabled. We still honor explicit | |
c5f741b3 | 708 | -fuse-linker-plugin if the linker used understands -plugin. */ |
709 | ||
710 | /* The linker has some plugin support. */ | |
711 | #if HAVE_LTO_PLUGIN > 0 | |
712 | /* The linker used has full plugin support, use LTO plugin by default. */ | |
713 | #if HAVE_LTO_PLUGIN == 2 | |
0f8cfb36 | 714 | #define PLUGIN_COND "!fno-use-linker-plugin:%{flto|flto=*|fuse-linker-plugin" |
715 | #define PLUGIN_COND_CLOSE "}" | |
de4d280b | 716 | #else |
c5f741b3 | 717 | /* The linker used has limited plugin support, use LTO plugin with explicit |
718 | -fuse-linker-plugin. */ | |
de4d280b | 719 | #define PLUGIN_COND "fuse-linker-plugin" |
0f8cfb36 | 720 | #define PLUGIN_COND_CLOSE "" |
de4d280b | 721 | #endif |
c5f741b3 | 722 | #define LINK_PLUGIN_SPEC \ |
723 | "%{"PLUGIN_COND": \ | |
724 | -plugin %(linker_plugin_file) \ | |
725 | -plugin-opt=%(lto_wrapper) \ | |
726 | -plugin-opt=-fresolution=%u.res \ | |
727 | %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \ | |
728 | }"PLUGIN_COND_CLOSE | |
729 | #else | |
730 | /* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */ | |
731 | #define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\ | |
732 | %e-fuse-linker-plugin is not supported in this configuration}" | |
733 | #endif | |
de4d280b | 734 | |
5f13745b | 735 | /* Linker command line options for -fsanitize= early on the command line. */ |
736 | #ifndef SANITIZER_EARLY_SPEC | |
737 | #define SANITIZER_EARLY_SPEC "\ | |
9e46467d | 738 | %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_EARLY_SPEC "} \ |
739 | %{%:sanitize(thread):" LIBTSAN_EARLY_SPEC "} \ | |
740 | %{%:sanitize(undefined):" LIBUBSAN_EARLY_SPEC "}}}" | |
5f13745b | 741 | #endif |
742 | ||
743 | /* Linker command line options for -fsanitize= late on the command line. */ | |
744 | #ifndef SANITIZER_SPEC | |
745 | #define SANITIZER_SPEC "\ | |
9e46467d | 746 | %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_SPEC "\ |
86d5f657 | 747 | %{static:%ecannot specify -static with -fsanitize=address}\ |
9e46467d | 748 | %{%:sanitize(thread):%e-fsanitize=address is incompatible with -fsanitize=thread}}\ |
749 | %{%:sanitize(thread):" LIBTSAN_SPEC "\ | |
750 | %{!pie:%{!shared:%e-fsanitize=thread linking must be done with -pie or -shared}}}\ | |
751 | %{%:sanitize(undefined):" LIBUBSAN_SPEC "}}}" | |
5f13745b | 752 | #endif |
8271b966 | 753 | |
b710ec85 | 754 | /* This is the spec to use, once the code for creating the vtable |
755 | verification runtime library, libvtv.so, has been created. Currently | |
756 | the vtable verification runtime functions are in libstdc++, so we use | |
757 | the spec just below this one. */ | |
758 | #ifndef VTABLE_VERIFICATION_SPEC | |
759 | #define VTABLE_VERIFICATION_SPEC "\ | |
760 | %{!nostdlib:%{fvtable-verify=std: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}\ | |
761 | %{fvtable-verify=preinit: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}}" | |
762 | #endif | |
763 | ||
1cf79a1a | 764 | /* -u* was put back because both BSD and SysV seem to support it. */ |
765 | /* %{static:} simply prevents an error message if the target machine | |
766 | doesn't handle -static. */ | |
767 | /* We want %{T*} after %{L*} and %D so that it can be used to specify linker | |
768 | scripts which exist in user specified directories, or in standard | |
769 | directories. */ | |
cbcf2791 | 770 | /* We pass any -flto flags on to the linker, which is expected |
7bfefa9d | 771 | to understand them. In practice, this means it had better be collect2. */ |
455188e9 | 772 | /* %{e*} includes -export-dynamic; see comment in common.opt. */ |
1cf79a1a | 773 | #ifndef LINK_COMMAND_SPEC |
774 | #define LINK_COMMAND_SPEC "\ | |
775 | %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\ | |
c5f741b3 | 776 | %(linker) " \ |
777 | LINK_PLUGIN_SPEC \ | |
5f13745b | 778 | "%{flto|flto=*:%<fcompare-debug*} \ |
0f8cfb36 | 779 | %{flto} %{flto=*} %l " LINK_PIE_SPEC \ |
99d5fe2d | 780 | "%{fuse-ld=*:-fuse-ld=%*}\ |
781 | %X %{o*} %{e*} %{N} %{n} %{r}\ | |
b710ec85 | 782 | %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}} " VTABLE_VERIFICATION_SPEC " \ |
5f13745b | 783 | %{static:} %{L*} %(mfwrap) %(link_libgcc) " SANITIZER_EARLY_SPEC " %o\ |
48b14f50 | 784 | %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}\ |
9a8d01ee | 785 | %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\ |
48b14f50 | 786 | %(mflib) " STACK_SPLIT_SPEC "\ |
5f13745b | 787 | %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \ |
b21d5608 | 788 | %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\ |
b9504307 | 789 | %{!nostdlib:%{!nostartfiles:%E}} %{T*} }}}}}}" |
1cf79a1a | 790 | #endif |
791 | ||
792 | #ifndef LINK_LIBGCC_SPEC | |
03829d4a | 793 | /* Generate -L options for startfile prefix list. */ |
794 | # define LINK_LIBGCC_SPEC "%D" | |
1cf79a1a | 795 | #endif |
796 | ||
4ae4e5e8 | 797 | #ifndef STARTFILE_PREFIX_SPEC |
798 | # define STARTFILE_PREFIX_SPEC "" | |
799 | #endif | |
800 | ||
b6bcc48f | 801 | #ifndef SYSROOT_SPEC |
802 | # define SYSROOT_SPEC "--sysroot=%R" | |
803 | #endif | |
804 | ||
4ea70922 | 805 | #ifndef SYSROOT_SUFFIX_SPEC |
806 | # define SYSROOT_SUFFIX_SPEC "" | |
807 | #endif | |
808 | ||
809 | #ifndef SYSROOT_HEADERS_SUFFIX_SPEC | |
810 | # define SYSROOT_HEADERS_SUFFIX_SPEC "" | |
811 | #endif | |
812 | ||
5641963c | 813 | static const char *asm_debug = ASM_DEBUG_SPEC; |
e772a198 | 814 | static const char *cpp_spec = CPP_SPEC; |
e772a198 | 815 | static const char *cc1_spec = CC1_SPEC; |
816 | static const char *cc1plus_spec = CC1PLUS_SPEC; | |
da98d114 | 817 | static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC; |
0d55f4d0 | 818 | static const char *link_ssp_spec = LINK_SSP_SPEC; |
e772a198 | 819 | static const char *asm_spec = ASM_SPEC; |
820 | static const char *asm_final_spec = ASM_FINAL_SPEC; | |
821 | static const char *link_spec = LINK_SPEC; | |
822 | static const char *lib_spec = LIB_SPEC; | |
4ee9c684 | 823 | static const char *mfwrap_spec = MFWRAP_SPEC; |
824 | static const char *mflib_spec = MFLIB_SPEC; | |
1e8e9920 | 825 | static const char *link_gomp_spec = ""; |
e772a198 | 826 | static const char *libgcc_spec = LIBGCC_SPEC; |
827 | static const char *endfile_spec = ENDFILE_SPEC; | |
828 | static const char *startfile_spec = STARTFILE_SPEC; | |
e772a198 | 829 | static const char *linker_name_spec = LINKER_NAME; |
7bfefa9d | 830 | static const char *linker_plugin_file_spec = ""; |
831 | static const char *lto_wrapper_spec = ""; | |
832 | static const char *lto_gcc_spec = ""; | |
1cf79a1a | 833 | static const char *link_command_spec = LINK_COMMAND_SPEC; |
834 | static const char *link_libgcc_spec = LINK_LIBGCC_SPEC; | |
4ae4e5e8 | 835 | static const char *startfile_prefix_spec = STARTFILE_PREFIX_SPEC; |
b6bcc48f | 836 | static const char *sysroot_spec = SYSROOT_SPEC; |
4ea70922 | 837 | static const char *sysroot_suffix_spec = SYSROOT_SUFFIX_SPEC; |
838 | static const char *sysroot_hdrs_suffix_spec = SYSROOT_HEADERS_SUFFIX_SPEC; | |
bd3ce038 | 839 | static const char *self_spec = ""; |
1cf79a1a | 840 | |
841 | /* Standard options to cpp, cc1, and as, to reduce duplication in specs. | |
842 | There should be no need to override these in target dependent files, | |
843 | but we need to copy them to the specs file so that newer versions | |
844 | of the GCC driver can correctly drive older tool chains with the | |
845 | appropriate -B options. */ | |
846 | ||
62683efd | 847 | /* When cpplib handles traditional preprocessing, get rid of this, and |
848 | call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so | |
849 | that we default the front end language better. */ | |
1cf79a1a | 850 | static const char *trad_capable_cpp = |
f1a0bc73 | 851 | "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}"; |
1cf79a1a | 852 | |
eb95e7f7 | 853 | /* We don't wrap .d files in %W{} since a missing .d file, and |
854 | therefore no dependency entry, confuses make into thinking a .o | |
855 | file that happens to exist is up-to-date. */ | |
a182c763 | 856 | static const char *cpp_unique_options = |
f608fcb7 | 857 | "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\ |
89c69892 | 858 | %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\ |
859 | %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\ | |
eb95e7f7 | 860 | %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\ |
e238d235 | 861 | %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\ |
a8c200f7 | 862 | %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\ |
d6bff3e6 | 863 | %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\ |
a8c200f7 | 864 | %{H} %C %{D*&U*&A*} %{i*} %Z %i\ |
4ee9c684 | 865 | %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\ |
866 | %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\ | |
5ca8af9f | 867 | %{E|M|MM:%W{o*}}"; |
a182c763 | 868 | |
869 | /* This contains cpp options which are common with cc1_options and are passed | |
39c188c5 | 870 | only when preprocessing only to avoid duplication. We pass the cc1 spec |
871 | options to the preprocessor so that it the cc1 spec may manipulate | |
872 | options used to set target flags. Those special target flags settings may | |
873 | in turn cause preprocessor symbols to be defined specially. */ | |
a182c763 | 874 | static const char *cpp_options = |
52367767 | 875 | "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\ |
cbf55437 | 876 | %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\ |
cc92bc82 | 877 | %{undef} %{save-temps*:-fpch-preprocess}"; |
1cf79a1a | 878 | |
4702fc25 | 879 | /* This contains cpp options which are not passed when the preprocessor |
880 | output will be used by another program. */ | |
881 | static const char *cpp_debug_options = "%{d*}"; | |
882 | ||
68f4c740 | 883 | /* NB: This is shared amongst all front-ends, except for Ada. */ |
1cf79a1a | 884 | static const char *cc1_options = |
885 | "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\ | |
d6bff3e6 | 886 | %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\ |
9b091a73 | 887 | %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\ |
71278019 | 888 | %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \ |
889 | %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \ | |
52367767 | 890 | %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\ |
1ed9d5f5 | 891 | %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\ |
3bfde2af | 892 | %{Qn:-fno-ident} %{Qy:} %{-help:--help}\ |
5789e05b | 893 | %{-target-help:--target-help}\ |
894 | %{-version:--version}\ | |
895 | %{-help=*:--help=%*}\ | |
655a58fa | 896 | %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\ |
4ee9c684 | 897 | %{fsyntax-only:-o %j} %{-param*}\ |
2c669579 | 898 | %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\ |
899 | %{coverage:-fprofile-arcs -ftest-coverage}"; | |
1cf79a1a | 900 | |
901 | static const char *asm_options = | |
a4a58ea8 | 902 | "%{-target-help:%:print-asm-header()} " |
c6429fa9 | 903 | #if HAVE_GNU_AS |
904 | /* If GNU AS is used, then convert -w (no warnings), -I, and -v | |
905 | to the assembler equivalents. */ | |
906 | "%{v} %{w:-W} %{I*} " | |
907 | #endif | |
908 | "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}"; | |
709c4e1b | 909 | |
99b02af1 | 910 | static const char *invoke_as = |
805e22b2 | 911 | #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT |
7bfefa9d | 912 | "%{!fwpa:\ |
913 | %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\ | |
914 | %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\ | |
915 | }"; | |
805e22b2 | 916 | #else |
7bfefa9d | 917 | "%{!fwpa:\ |
918 | %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\ | |
919 | %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\ | |
920 | }"; | |
805e22b2 | 921 | #endif |
99b02af1 | 922 | |
709c4e1b | 923 | /* Some compilers have limits on line lengths, and the multilib_select |
3d97d965 | 924 | and/or multilib_matches strings can be very long, so we build them at |
925 | run time. */ | |
709c4e1b | 926 | static struct obstack multilib_obstack; |
e772a198 | 927 | static const char *multilib_select; |
928 | static const char *multilib_matches; | |
929 | static const char *multilib_defaults; | |
930 | static const char *multilib_exclusions; | |
7137cdac | 931 | static const char *multilib_reuse; |
3d97d965 | 932 | |
933 | /* Check whether a particular argument is a default argument. */ | |
934 | ||
935 | #ifndef MULTILIB_DEFAULTS | |
936 | #define MULTILIB_DEFAULTS { "" } | |
937 | #endif | |
938 | ||
026f2c7a | 939 | static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS; |
d7a9644e | 940 | |
73023f49 | 941 | #ifndef DRIVER_SELF_SPECS |
942 | #define DRIVER_SELF_SPECS "" | |
943 | #endif | |
944 | ||
1e8e9920 | 945 | /* Adding -fopenmp should imply pthreads. This is particularly important |
946 | for targets that use different start files and suchlike. */ | |
947 | #ifndef GOMP_SELF_SPECS | |
061202f8 | 948 | #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}" |
1e8e9920 | 949 | #endif |
950 | ||
9a8d01ee | 951 | /* Likewise for -fgnu-tm. */ |
952 | #ifndef GTM_SELF_SPECS | |
953 | #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}" | |
954 | #endif | |
955 | ||
1e8e9920 | 956 | static const char *const driver_self_specs[] = { |
9845d120 | 957 | "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns", |
9a8d01ee | 958 | DRIVER_SELF_SPECS, CONFIGURE_SPECS, GOMP_SELF_SPECS, GTM_SELF_SPECS |
1e8e9920 | 959 | }; |
73023f49 | 960 | |
7dd97ab6 | 961 | #ifndef OPTION_DEFAULT_SPECS |
962 | #define OPTION_DEFAULT_SPECS { "", "" } | |
963 | #endif | |
964 | ||
965 | struct default_spec | |
966 | { | |
967 | const char *name; | |
968 | const char *spec; | |
969 | }; | |
970 | ||
971 | static const struct default_spec | |
972 | option_default_specs[] = { OPTION_DEFAULT_SPECS }; | |
973 | ||
d4ea3b1f | 974 | struct user_specs |
975 | { | |
9d70d39c | 976 | struct user_specs *next; |
e40d43cc | 977 | const char *filename; |
9d70d39c | 978 | }; |
979 | ||
980 | static struct user_specs *user_specs_head, *user_specs_tail; | |
981 | ||
d7a9644e | 982 | \f |
983 | /* Record the mapping from file suffixes for compilation specs. */ | |
984 | ||
985 | struct compiler | |
986 | { | |
e40d43cc | 987 | const char *suffix; /* Use this compiler for input files |
d7a9644e | 988 | whose names end in this suffix. */ |
6db05d3a | 989 | |
1cf79a1a | 990 | const char *spec; /* To use this compiler, run this spec. */ |
96842e40 | 991 | |
992 | const char *cpp_spec; /* If non-NULL, substitute this spec | |
993 | for `%C', rather than the usual | |
994 | cpp_spec. */ | |
365db11e | 995 | const int combinable; /* If nonzero, compiler can deal with |
dc1dd09b | 996 | multiple source files at once (IMA). */ |
365db11e | 997 | const int needs_preprocessing; /* If nonzero, source files need to |
dc1dd09b | 998 | be run through a preprocessor. */ |
d7a9644e | 999 | }; |
1000 | ||
1001 | /* Pointer to a vector of `struct compiler' that gives the spec for | |
1002 | compiling a file, based on its suffix. | |
1003 | A file that does not end in any of these suffixes will be passed | |
1004 | unchanged to the loader and nothing else will be done to it. | |
1005 | ||
1006 | An entry containing two 0s is used to terminate the vector. | |
1007 | ||
1008 | If multiple entries match a file, the last matching one is used. */ | |
1009 | ||
1010 | static struct compiler *compilers; | |
1011 | ||
1012 | /* Number of entries in `compilers', not counting the null terminator. */ | |
1013 | ||
1014 | static int n_compilers; | |
1015 | ||
1016 | /* The default list of file name suffixes and their compilation specs. */ | |
1017 | ||
c077395f | 1018 | static const struct compiler default_compilers[] = |
d7a9644e | 1019 | { |
6e8b4b1d | 1020 | /* Add lists of suffixes of known languages here. If those languages |
0dbd1c74 | 1021 | were not present when we built the driver, we will hit these copies |
1022 | and be given a more meaningful error than "file not used since | |
6e8b4b1d | 1023 | linking is not done". */ |
dc1dd09b | 1024 | {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0}, |
9728bde3 | 1025 | {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0}, |
1026 | {".mii", "#Objective-C++", 0, 0, 0}, | |
2f2c6aee | 1027 | {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0}, |
1028 | {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0}, | |
dc1dd09b | 1029 | {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0}, |
1030 | {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0}, | |
1031 | {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0}, | |
00c6e780 | 1032 | {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0}, |
1033 | {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0}, | |
1034 | {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0}, | |
1035 | {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0}, | |
1036 | {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0}, | |
1037 | {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0}, | |
1038 | {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0}, | |
1039 | {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0}, | |
dc1dd09b | 1040 | {".r", "#Ratfor", 0, 0, 0}, |
1041 | {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0}, | |
1042 | {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0}, | |
1043 | {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0}, | |
e440a328 | 1044 | {".go", "#Go", 0, 1, 0}, |
6e8b4b1d | 1045 | /* Next come the entries for C. */ |
78d063c8 | 1046 | {".c", "@c", 0, 0, 1}, |
d7a9644e | 1047 | {"@c", |
99b02af1 | 1048 | /* cc1 has an integrated ISO C preprocessor. We should invoke the |
455730ef | 1049 | external preprocessor if -save-temps is given. */ |
3ae4c9f3 | 1050 | "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\ |
99b02af1 | 1051 | %{!E:%{!M:%{!MM:\ |
f1a0bc73 | 1052 | %{traditional:\ |
455730ef | 1053 | %eGNU C no longer supports -traditional without -E}\ |
78d063c8 | 1054 | %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \ |
1055 | %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\ | |
1056 | cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \ | |
1057 | %(cc1_options)}\ | |
1058 | %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\ | |
1059 | cc1 %(cpp_unique_options) %(cc1_options)}}}\ | |
1060 | %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1}, | |
d7a9644e | 1061 | {"-", |
a5050534 | 1062 | "%{!E:%e-E or -x required when input is from standard input}\ |
dc1dd09b | 1063 | %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0}, |
1064 | {".h", "@c-header", 0, 0, 0}, | |
d7a9644e | 1065 | {"@c-header", |
573aba85 | 1066 | /* cc1 has an integrated ISO C preprocessor. We should invoke the |
1067 | external preprocessor if -save-temps is given. */ | |
1068 | "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\ | |
1069 | %{!E:%{!M:%{!MM:\ | |
cc92bc82 | 1070 | %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \ |
1071 | %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\ | |
1072 | cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \ | |
4e6a6999 | 1073 | %(cc1_options)\ |
f608fcb7 | 1074 | %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\ |
1075 | %W{o*:--output-pch=%*}}%V}\ | |
cc92bc82 | 1076 | %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\ |
573aba85 | 1077 | cc1 %(cpp_unique_options) %(cc1_options)\ |
f608fcb7 | 1078 | %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\ |
1079 | %W{o*:--output-pch=%*}}%V}}}}}}", 0, 0, 0}, | |
78d063c8 | 1080 | {".i", "@cpp-output", 0, 0, 0}, |
d7a9644e | 1081 | {"@cpp-output", |
60c10fe6 | 1082 | "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0}, |
871aed8a | 1083 | {".s", "@assembler", 0, 0, 0}, |
d7a9644e | 1084 | {"@assembler", |
871aed8a | 1085 | "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0}, |
1086 | {".sx", "@assembler-with-cpp", 0, 0, 0}, | |
1087 | {".S", "@assembler-with-cpp", 0, 0, 0}, | |
d7a9644e | 1088 | {"@assembler-with-cpp", |
805e22b2 | 1089 | #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT |
8d3e018c | 1090 | "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\ |
4702fc25 | 1091 | %{E|M|MM:%(cpp_debug_options)}\ |
805e22b2 | 1092 | %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\ |
1093 | as %(asm_debug) %(asm_options) %|.s %A }}}}" | |
1094 | #else | |
8d3e018c | 1095 | "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\ |
805e22b2 | 1096 | %{E|M|MM:%(cpp_debug_options)}\ |
1097 | %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\ | |
1098 | as %(asm_debug) %(asm_options) %m.s %A }}}}" | |
1099 | #endif | |
871aed8a | 1100 | , 0, 0, 0}, |
952f0048 | 1101 | |
45b17600 | 1102 | #include "specs.h" |
2358393e | 1103 | /* Mark end of table. */ |
dc1dd09b | 1104 | {0, 0, 0, 0, 0} |
d7a9644e | 1105 | }; |
1106 | ||
1107 | /* Number of elements in default_compilers, not counting the terminator. */ | |
1108 | ||
3585dac7 | 1109 | static const int n_default_compilers = ARRAY_SIZE (default_compilers) - 1; |
d7a9644e | 1110 | |
74c33122 | 1111 | typedef char *char_p; /* For DEF_VEC_P. */ |
74c33122 | 1112 | |
d7a9644e | 1113 | /* A vector of options to give to the linker. |
fcdc45aa | 1114 | These options are accumulated by %x, |
d7a9644e | 1115 | and substituted into the linker command with %X. */ |
f1f41a6c | 1116 | static vec<char_p> linker_options; |
69587571 | 1117 | |
1118 | /* A vector of options to give to the assembler. | |
1119 | These options are accumulated by -Wa, | |
391d9b6e | 1120 | and substituted into the assembler command with %Y. */ |
f1f41a6c | 1121 | static vec<char_p> assembler_options; |
391d9b6e | 1122 | |
1123 | /* A vector of options to give to the preprocessor. | |
1124 | These options are accumulated by -Wp, | |
1125 | and substituted into the preprocessor command with %Z. */ | |
f1f41a6c | 1126 | static vec<char_p> preprocessor_options; |
d7a9644e | 1127 | \f |
d7a9644e | 1128 | static char * |
952f0048 | 1129 | skip_whitespace (char *p) |
d7a9644e | 1130 | { |
1131 | while (1) | |
1132 | { | |
1133 | /* A fully-blank line is a delimiter in the SPEC file and shouldn't | |
1134 | be considered whitespace. */ | |
1135 | if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n') | |
1136 | return p + 1; | |
1137 | else if (*p == '\n' || *p == ' ' || *p == '\t') | |
1138 | p++; | |
1139 | else if (*p == '#') | |
1140 | { | |
026f2c7a | 1141 | while (*p != '\n') |
1142 | p++; | |
d7a9644e | 1143 | p++; |
1144 | } | |
1145 | else | |
1146 | break; | |
1147 | } | |
1148 | ||
1149 | return p; | |
1150 | } | |
bfb9bc39 | 1151 | /* Structures to keep track of prefixes to try when looking for files. */ |
1152 | ||
1153 | struct prefix_list | |
1154 | { | |
afe739a7 | 1155 | const char *prefix; /* String to prepend to the path. */ |
bfb9bc39 | 1156 | struct prefix_list *next; /* Next in linked list. */ |
1157 | int require_machine_suffix; /* Don't use without machine_suffix. */ | |
1158 | /* 2 means try both machine_suffix and just_machine_suffix. */ | |
c954ff02 | 1159 | int priority; /* Sort key - priority within list. */ |
1160 | int os_multilib; /* 1 if OS multilib scheme should be used, | |
1161 | 0 for GCC multilib scheme. */ | |
bfb9bc39 | 1162 | }; |
1163 | ||
1164 | struct path_prefix | |
1165 | { | |
1166 | struct prefix_list *plist; /* List of prefixes to try */ | |
1167 | int max_len; /* Max length of a prefix in PLIST */ | |
1168 | const char *name; /* Name of this list (used in config stuff) */ | |
1169 | }; | |
1170 | ||
1171 | /* List of prefixes to try when looking for executables. */ | |
1172 | ||
1173 | static struct path_prefix exec_prefixes = { 0, 0, "exec" }; | |
1174 | ||
1175 | /* List of prefixes to try when looking for startup (crt0) files. */ | |
1176 | ||
1177 | static struct path_prefix startfile_prefixes = { 0, 0, "startfile" }; | |
1178 | ||
1179 | /* List of prefixes to try when looking for include files. */ | |
1180 | ||
1181 | static struct path_prefix include_prefixes = { 0, 0, "include" }; | |
1182 | ||
1183 | /* Suffix to attach to directories searched for commands. | |
1184 | This looks like `MACHINE/VERSION/'. */ | |
1185 | ||
1186 | static const char *machine_suffix = 0; | |
1187 | ||
1188 | /* Suffix to attach to directories searched for commands. | |
1189 | This is just `MACHINE/'. */ | |
1190 | ||
1191 | static const char *just_machine_suffix = 0; | |
1192 | ||
1193 | /* Adjusted value of GCC_EXEC_PREFIX envvar. */ | |
1194 | ||
1195 | static const char *gcc_exec_prefix; | |
1196 | ||
9db45a87 | 1197 | /* Adjusted value of standard_libexec_prefix. */ |
1198 | ||
1199 | static const char *gcc_libexec_prefix; | |
1200 | ||
bfb9bc39 | 1201 | /* Default prefixes to attach to command names. */ |
1202 | ||
3c2ba0de | 1203 | #ifndef STANDARD_STARTFILE_PREFIX_1 |
1204 | #define STANDARD_STARTFILE_PREFIX_1 "/lib/" | |
1205 | #endif | |
1206 | #ifndef STANDARD_STARTFILE_PREFIX_2 | |
1207 | #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/" | |
1208 | #endif | |
2f2c6aee | 1209 | |
29d774d0 | 1210 | #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */ |
bfb9bc39 | 1211 | #undef MD_EXEC_PREFIX |
1212 | #undef MD_STARTFILE_PREFIX | |
1213 | #undef MD_STARTFILE_PREFIX_1 | |
1214 | #endif | |
1215 | ||
1216 | /* If no prefixes defined, use the null string, which will disable them. */ | |
1217 | #ifndef MD_EXEC_PREFIX | |
1218 | #define MD_EXEC_PREFIX "" | |
1219 | #endif | |
1220 | #ifndef MD_STARTFILE_PREFIX | |
1221 | #define MD_STARTFILE_PREFIX "" | |
1222 | #endif | |
1223 | #ifndef MD_STARTFILE_PREFIX_1 | |
1224 | #define MD_STARTFILE_PREFIX_1 "" | |
1225 | #endif | |
1226 | ||
c4328bcc | 1227 | /* These directories are locations set at configure-time based on the |
1228 | --prefix option provided to configure. Their initializers are | |
1229 | defined in Makefile.in. These paths are not *directly* used when | |
1230 | gcc_exec_prefix is set because, in that case, we know where the | |
1231 | compiler has been installed, and use paths relative to that | |
1232 | location instead. */ | |
35823b64 | 1233 | static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX; |
c4328bcc | 1234 | static const char *const standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX; |
1235 | static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX; | |
1236 | static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX; | |
1237 | ||
1238 | /* For native compilers, these are well-known paths containing | |
1239 | components that may be provided by the system. For cross | |
1240 | compilers, these paths are not used. */ | |
bfb9bc39 | 1241 | static const char *md_exec_prefix = MD_EXEC_PREFIX; |
bfb9bc39 | 1242 | static const char *md_startfile_prefix = MD_STARTFILE_PREFIX; |
1243 | static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1; | |
87c75316 | 1244 | static const char *const standard_startfile_prefix_1 |
3c2ba0de | 1245 | = STANDARD_STARTFILE_PREFIX_1; |
1246 | static const char *const standard_startfile_prefix_2 | |
1247 | = STANDARD_STARTFILE_PREFIX_2; | |
bfb9bc39 | 1248 | |
c4328bcc | 1249 | /* A relative path to be used in finding the location of tools |
1250 | relative to the driver. */ | |
35823b64 | 1251 | static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX; |
9db45a87 | 1252 | |
bfb9bc39 | 1253 | /* Subdirectory to use for locating libraries. Set by |
1254 | set_multilib_dir based on the compilation options. */ | |
1255 | ||
1256 | static const char *multilib_dir; | |
c954ff02 | 1257 | |
1258 | /* Subdirectory to use for locating libraries in OS conventions. Set by | |
1259 | set_multilib_dir based on the compilation options. */ | |
1260 | ||
1261 | static const char *multilib_os_dir; | |
77adc39e | 1262 | |
1263 | /* Subdirectory to use for locating libraries in multiarch conventions. Set by | |
1264 | set_multilib_dir based on the compilation options. */ | |
1265 | ||
1266 | static const char *multiarch_dir; | |
d7a9644e | 1267 | \f |
a92771b8 | 1268 | /* Structure to keep track of the specs that have been defined so far. |
88483769 | 1269 | These are accessed using %(specname) in a compiler or link |
1270 | spec. */ | |
d7a9644e | 1271 | |
1272 | struct spec_list | |
1273 | { | |
988c0ffe | 1274 | /* The following 2 fields must be first */ |
1275 | /* to allow EXTRA_SPECS to be initialized */ | |
e772a198 | 1276 | const char *name; /* name of the spec. */ |
1277 | const char *ptr; /* available ptr if no static pointer */ | |
988c0ffe | 1278 | |
1279 | /* The following fields are not initialized */ | |
1280 | /* by EXTRA_SPECS */ | |
e772a198 | 1281 | const char **ptr_spec; /* pointer to the spec itself. */ |
988c0ffe | 1282 | struct spec_list *next; /* Next spec in linked list. */ |
1283 | int name_len; /* length of the name */ | |
556cfe53 | 1284 | bool user_p; /* whether string come from file spec. */ |
1285 | bool alloc_p; /* whether string was allocated */ | |
d7a9644e | 1286 | }; |
1287 | ||
988c0ffe | 1288 | #define INIT_STATIC_SPEC(NAME,PTR) \ |
556cfe53 | 1289 | { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, false, false } |
988c0ffe | 1290 | |
d4ea3b1f | 1291 | /* List of statically defined specs. */ |
1292 | static struct spec_list static_specs[] = | |
1293 | { | |
988c0ffe | 1294 | INIT_STATIC_SPEC ("asm", &asm_spec), |
1a6f9700 | 1295 | INIT_STATIC_SPEC ("asm_debug", &asm_debug), |
988c0ffe | 1296 | INIT_STATIC_SPEC ("asm_final", &asm_final_spec), |
1cf79a1a | 1297 | INIT_STATIC_SPEC ("asm_options", &asm_options), |
99b02af1 | 1298 | INIT_STATIC_SPEC ("invoke_as", &invoke_as), |
988c0ffe | 1299 | INIT_STATIC_SPEC ("cpp", &cpp_spec), |
1cf79a1a | 1300 | INIT_STATIC_SPEC ("cpp_options", &cpp_options), |
4702fc25 | 1301 | INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options), |
a182c763 | 1302 | INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options), |
1cf79a1a | 1303 | INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp), |
988c0ffe | 1304 | INIT_STATIC_SPEC ("cc1", &cc1_spec), |
1cf79a1a | 1305 | INIT_STATIC_SPEC ("cc1_options", &cc1_options), |
988c0ffe | 1306 | INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec), |
da98d114 | 1307 | INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec), |
0d55f4d0 | 1308 | INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec), |
988c0ffe | 1309 | INIT_STATIC_SPEC ("endfile", &endfile_spec), |
1310 | INIT_STATIC_SPEC ("link", &link_spec), | |
1311 | INIT_STATIC_SPEC ("lib", &lib_spec), | |
4ee9c684 | 1312 | INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec), |
1313 | INIT_STATIC_SPEC ("mflib", &mflib_spec), | |
1e8e9920 | 1314 | INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec), |
988c0ffe | 1315 | INIT_STATIC_SPEC ("libgcc", &libgcc_spec), |
1316 | INIT_STATIC_SPEC ("startfile", &startfile_spec), | |
988c0ffe | 1317 | INIT_STATIC_SPEC ("cross_compile", &cross_compile), |
1318 | INIT_STATIC_SPEC ("version", &compiler_version), | |
1319 | INIT_STATIC_SPEC ("multilib", &multilib_select), | |
1320 | INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults), | |
1321 | INIT_STATIC_SPEC ("multilib_extra", &multilib_extra), | |
1322 | INIT_STATIC_SPEC ("multilib_matches", &multilib_matches), | |
54518c3b | 1323 | INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions), |
c954ff02 | 1324 | INIT_STATIC_SPEC ("multilib_options", &multilib_options), |
7137cdac | 1325 | INIT_STATIC_SPEC ("multilib_reuse", &multilib_reuse), |
0c787992 | 1326 | INIT_STATIC_SPEC ("linker", &linker_name_spec), |
7bfefa9d | 1327 | INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec), |
1328 | INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec), | |
1329 | INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec), | |
1cf79a1a | 1330 | INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec), |
bfb9bc39 | 1331 | INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix), |
1332 | INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix), | |
1333 | INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1), | |
4ae4e5e8 | 1334 | INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec), |
b6bcc48f | 1335 | INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec), |
4ea70922 | 1336 | INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec), |
1337 | INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec), | |
bd3ce038 | 1338 | INIT_STATIC_SPEC ("self_spec", &self_spec), |
988c0ffe | 1339 | }; |
1340 | ||
1341 | #ifdef EXTRA_SPECS /* additional specs needed */ | |
6b40eba4 | 1342 | /* Structure to keep track of just the first two args of a spec_list. |
d4ea3b1f | 1343 | That is all that the EXTRA_SPECS macro gives us. */ |
6b40eba4 | 1344 | struct spec_list_1 |
1345 | { | |
e99c3a1d | 1346 | const char *const name; |
1347 | const char *const ptr; | |
6b40eba4 | 1348 | }; |
1349 | ||
e99c3a1d | 1350 | static const struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS }; |
026f2c7a | 1351 | static struct spec_list *extra_specs = (struct spec_list *) 0; |
988c0ffe | 1352 | #endif |
1353 | ||
1354 | /* List of dynamically allocates specs that have been defined so far. */ | |
1355 | ||
2c815aff | 1356 | static struct spec_list *specs = (struct spec_list *) 0; |
988c0ffe | 1357 | \f |
c21b3276 | 1358 | /* List of static spec functions. */ |
1359 | ||
1360 | static const struct spec_function static_spec_functions[] = | |
1361 | { | |
0305c755 | 1362 | { "getenv", getenv_spec_function }, |
c21b3276 | 1363 | { "if-exists", if_exists_spec_function }, |
68d74c02 | 1364 | { "if-exists-else", if_exists_else_spec_function }, |
9e46467d | 1365 | { "sanitize", sanitize_spec_function }, |
2288041e | 1366 | { "replace-outfile", replace_outfile_spec_function }, |
8127ab5d | 1367 | { "remove-outfile", remove_outfile_spec_function }, |
9b1f316f | 1368 | { "version-compare", version_compare_spec_function }, |
1e8e9920 | 1369 | { "include", include_spec_function }, |
19bc000d | 1370 | { "find-file", find_file_spec_function }, |
d6bff3e6 | 1371 | { "find-plugindir", find_plugindir_spec_function }, |
ceac8e8c | 1372 | { "print-asm-header", print_asm_header_spec_function }, |
71278019 | 1373 | { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function }, |
1374 | { "compare-debug-self-opt", compare_debug_self_opt_spec_function }, | |
1375 | { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function }, | |
280f8649 | 1376 | { "pass-through-libs", pass_through_libs_spec_func }, |
b35329c7 | 1377 | { "replace-extension", replace_extension_spec_func }, |
4009b53f | 1378 | #ifdef EXTRA_SPEC_FUNCTIONS |
1379 | EXTRA_SPEC_FUNCTIONS | |
1380 | #endif | |
c21b3276 | 1381 | { 0, 0 } |
1382 | }; | |
1383 | ||
1384 | static int processing_spec_function; | |
1385 | \f | |
5cb4c868 | 1386 | /* Add appropriate libgcc specs to OBSTACK, taking into account |
1387 | various permutations of -shared-libgcc, -shared, and such. */ | |
1388 | ||
ecbfdc87 | 1389 | #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC) |
be4e8b82 | 1390 | |
1391 | #ifndef USE_LD_AS_NEEDED | |
1392 | #define USE_LD_AS_NEEDED 0 | |
1393 | #endif | |
1394 | ||
5cb4c868 | 1395 | static void |
952f0048 | 1396 | init_gcc_specs (struct obstack *obstack, const char *shared_name, |
1397 | const char *static_name, const char *eh_name) | |
5cb4c868 | 1398 | { |
48285a3c | 1399 | char *buf; |
1400 | ||
e885c832 | 1401 | buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name, "}" |
1402 | "%{!static:%{!static-libgcc:" | |
be4e8b82 | 1403 | #if USE_LD_AS_NEEDED |
e885c832 | 1404 | "%{!shared-libgcc:", |
8aaed91d | 1405 | static_name, " " LD_AS_NEEDED_OPTION " ", |
1406 | shared_name, " " LD_NO_AS_NEEDED_OPTION | |
e885c832 | 1407 | "}" |
1408 | "%{shared-libgcc:", | |
1409 | shared_name, "%{!shared: ", static_name, "}" | |
1410 | "}" | |
6a40149e | 1411 | #else |
e885c832 | 1412 | "%{!shared:" |
1413 | "%{!shared-libgcc:", static_name, " ", eh_name, "}" | |
1414 | "%{shared-libgcc:", shared_name, " ", static_name, "}" | |
1415 | "}" | |
0d6378a9 | 1416 | #ifdef LINK_EH_SPEC |
e885c832 | 1417 | "%{shared:" |
1418 | "%{shared-libgcc:", shared_name, "}" | |
1419 | "%{!shared-libgcc:", static_name, "}" | |
1420 | "}" | |
0d6378a9 | 1421 | #else |
e885c832 | 1422 | "%{shared:", shared_name, "}" |
6a40149e | 1423 | #endif |
0d6378a9 | 1424 | #endif |
e885c832 | 1425 | "}}", NULL); |
48285a3c | 1426 | |
1427 | obstack_grow (obstack, buf, strlen (buf)); | |
1428 | free (buf); | |
5cb4c868 | 1429 | } |
b51d5c7c | 1430 | #endif /* ENABLE_SHARED_LIBGCC */ |
5cb4c868 | 1431 | |
988c0ffe | 1432 | /* Initialize the specs lookup routines. */ |
1433 | ||
1434 | static void | |
a046944b | 1435 | init_spec (void) |
988c0ffe | 1436 | { |
2c815aff | 1437 | struct spec_list *next = (struct spec_list *) 0; |
1438 | struct spec_list *sl = (struct spec_list *) 0; | |
988c0ffe | 1439 | int i; |
1440 | ||
1441 | if (specs) | |
d4ea3b1f | 1442 | return; /* Already initialized. */ |
988c0ffe | 1443 | |
4582d741 | 1444 | if (verbose_flag) |
a922df2e | 1445 | fnotice (stderr, "Using built-in specs.\n"); |
4582d741 | 1446 | |
988c0ffe | 1447 | #ifdef EXTRA_SPECS |
25a1c410 | 1448 | extra_specs = XCNEWVEC (struct spec_list, ARRAY_SIZE (extra_specs_1)); |
2c815aff | 1449 | |
3098b2d3 | 1450 | for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--) |
810309ce | 1451 | { |
1452 | sl = &extra_specs[i]; | |
6b40eba4 | 1453 | sl->name = extra_specs_1[i].name; |
1454 | sl->ptr = extra_specs_1[i].ptr; | |
810309ce | 1455 | sl->next = next; |
1456 | sl->name_len = strlen (sl->name); | |
1457 | sl->ptr_spec = &sl->ptr; | |
1458 | next = sl; | |
1459 | } | |
988c0ffe | 1460 | #endif |
1461 | ||
3098b2d3 | 1462 | for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--) |
988c0ffe | 1463 | { |
1464 | sl = &static_specs[i]; | |
1465 | sl->next = next; | |
1466 | next = sl; | |
1467 | } | |
1468 | ||
ecbfdc87 | 1469 | #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC) |
43198b29 | 1470 | /* ??? If neither -shared-libgcc nor --static-libgcc was |
1471 | seen, then we should be making an educated guess. Some proposed | |
1472 | heuristics for ELF include: | |
1473 | ||
1474 | (1) If "-Wl,--export-dynamic", then it's a fair bet that the | |
1475 | program will be doing dynamic loading, which will likely | |
1476 | need the shared libgcc. | |
1477 | ||
1478 | (2) If "-ldl", then it's also a fair bet that we're doing | |
1479 | dynamic loading. | |
1480 | ||
1481 | (3) For each ET_DYN we're linking against (either through -lfoo | |
1482 | or /some/path/foo.so), check to see whether it or one of | |
424da949 | 1483 | its dependencies depends on a shared libgcc. |
43198b29 | 1484 | |
1485 | (4) If "-shared" | |
1486 | ||
1487 | If the runtime is fixed to look for program headers instead | |
1488 | of calling __register_frame_info at all, for each object, | |
1489 | use the shared libgcc if any EH symbol referenced. | |
1490 | ||
1491 | If crtstuff is fixed to not invoke __register_frame_info | |
1492 | automatically, for each object, use the shared libgcc if | |
1493 | any non-empty unwind section found. | |
1494 | ||
1495 | Doing any of this probably requires invoking an external program to | |
1496 | do the actual object file scanning. */ | |
1497 | { | |
1498 | const char *p = libgcc_spec; | |
1499 | int in_sep = 1; | |
3cfec666 | 1500 | |
6fba09a6 | 1501 | /* Transform the extant libgcc_spec into one that uses the shared libgcc |
43198b29 | 1502 | when given the proper command line arguments. */ |
1503 | while (*p) | |
1504 | { | |
3cfec666 | 1505 | if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0) |
43198b29 | 1506 | { |
5cb4c868 | 1507 | init_gcc_specs (&obstack, |
5cb4c868 | 1508 | "-lgcc_s" |
8bdf23ae | 1509 | #ifdef USE_LIBUNWIND_EXCEPTIONS |
1510 | " -lunwind" | |
805e22b2 | 1511 | #endif |
81e210c3 | 1512 | , |
1513 | "-lgcc", | |
1514 | "-lgcc_eh" | |
805e22b2 | 1515 | #ifdef USE_LIBUNWIND_EXCEPTIONS |
79f90e2b | 1516 | # ifdef HAVE_LD_STATIC_DYNAMIC |
e6937b3a | 1517 | " %{!static:" LD_STATIC_OPTION "} -lunwind" |
1518 | " %{!static:" LD_DYNAMIC_OPTION "}" | |
79f90e2b | 1519 | # else |
805e22b2 | 1520 | " -lunwind" |
79f90e2b | 1521 | # endif |
43198b29 | 1522 | #endif |
81e210c3 | 1523 | ); |
1524 | ||
21eaebc3 | 1525 | p += 5; |
43198b29 | 1526 | in_sep = 0; |
1527 | } | |
21eaebc3 | 1528 | else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0) |
43198b29 | 1529 | { |
1530 | /* Ug. We don't know shared library extensions. Hope that | |
1531 | systems that use this form don't do shared libraries. */ | |
5cb4c868 | 1532 | init_gcc_specs (&obstack, |
6ffda34c | 1533 | "-lgcc_s", |
0d6378a9 | 1534 | "libgcc.a%s", |
974df224 | 1535 | "libgcc_eh.a%s" |
1536 | #ifdef USE_LIBUNWIND_EXCEPTIONS | |
1537 | " -lunwind" | |
1538 | #endif | |
1539 | ); | |
21eaebc3 | 1540 | p += 10; |
43198b29 | 1541 | in_sep = 0; |
1542 | } | |
1543 | else | |
1544 | { | |
1545 | obstack_1grow (&obstack, *p); | |
1546 | in_sep = (*p == ' '); | |
1547 | p += 1; | |
1548 | } | |
1549 | } | |
1550 | ||
1551 | obstack_1grow (&obstack, '\0'); | |
4fac984f | 1552 | libgcc_spec = XOBFINISH (&obstack, const char *); |
43198b29 | 1553 | } |
1554 | #endif | |
c3f311c4 | 1555 | #ifdef USE_AS_TRADITIONAL_FORMAT |
1556 | /* Prepend "--traditional-format" to whatever asm_spec we had before. */ | |
1557 | { | |
e99c3a1d | 1558 | static const char tf[] = "--traditional-format "; |
c3f311c4 | 1559 | obstack_grow (&obstack, tf, sizeof(tf) - 1); |
1560 | obstack_grow0 (&obstack, asm_spec, strlen (asm_spec)); | |
4fac984f | 1561 | asm_spec = XOBFINISH (&obstack, const char *); |
c3f311c4 | 1562 | } |
1563 | #endif | |
8271b966 | 1564 | |
3cb9bbfa | 1565 | #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \ |
1566 | defined LINKER_HASH_STYLE | |
8271b966 | 1567 | # ifdef LINK_BUILDID_SPEC |
1568 | /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */ | |
1569 | obstack_grow (&obstack, LINK_BUILDID_SPEC, sizeof(LINK_BUILDID_SPEC) - 1); | |
1570 | # endif | |
1571 | # ifdef LINK_EH_SPEC | |
0d6378a9 | 1572 | /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */ |
1573 | obstack_grow (&obstack, LINK_EH_SPEC, sizeof(LINK_EH_SPEC) - 1); | |
3cb9bbfa | 1574 | # endif |
1575 | # ifdef LINKER_HASH_STYLE | |
1576 | /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had | |
1577 | before. */ | |
1578 | { | |
1579 | static const char hash_style[] = "--hash-style="; | |
1580 | obstack_grow (&obstack, hash_style, sizeof(hash_style) - 1); | |
1581 | obstack_grow (&obstack, LINKER_HASH_STYLE, sizeof(LINKER_HASH_STYLE) - 1); | |
1582 | obstack_1grow (&obstack, ' '); | |
1583 | } | |
8271b966 | 1584 | # endif |
0d6378a9 | 1585 | obstack_grow0 (&obstack, link_spec, strlen (link_spec)); |
4fac984f | 1586 | link_spec = XOBFINISH (&obstack, const char *); |
0d6378a9 | 1587 | #endif |
43198b29 | 1588 | |
988c0ffe | 1589 | specs = sl; |
1590 | } | |
d7a9644e | 1591 | \f |
1592 | /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is | |
1593 | removed; If the spec starts with a + then SPEC is added to the end of the | |
a92771b8 | 1594 | current spec. */ |
d7a9644e | 1595 | |
1596 | static void | |
556cfe53 | 1597 | set_spec (const char *name, const char *spec, bool user_p) |
d7a9644e | 1598 | { |
1599 | struct spec_list *sl; | |
e772a198 | 1600 | const char *old_spec; |
988c0ffe | 1601 | int name_len = strlen (name); |
1602 | int i; | |
1603 | ||
d4ea3b1f | 1604 | /* If this is the first call, initialize the statically allocated specs. */ |
4582d741 | 1605 | if (!specs) |
1606 | { | |
2c815aff | 1607 | struct spec_list *next = (struct spec_list *) 0; |
3098b2d3 | 1608 | for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--) |
4582d741 | 1609 | { |
1610 | sl = &static_specs[i]; | |
1611 | sl->next = next; | |
1612 | next = sl; | |
1613 | } | |
1614 | specs = sl; | |
1615 | } | |
1616 | ||
d4ea3b1f | 1617 | /* See if the spec already exists. */ |
d7a9644e | 1618 | for (sl = specs; sl; sl = sl->next) |
988c0ffe | 1619 | if (name_len == sl->name_len && !strcmp (sl->name, name)) |
d7a9644e | 1620 | break; |
1621 | ||
1622 | if (!sl) | |
1623 | { | |
d4ea3b1f | 1624 | /* Not found - make it. */ |
4c36ffe6 | 1625 | sl = XNEW (struct spec_list); |
713829e9 | 1626 | sl->name = xstrdup (name); |
988c0ffe | 1627 | sl->name_len = name_len; |
1628 | sl->ptr_spec = &sl->ptr; | |
1629 | sl->alloc_p = 0; | |
1630 | *(sl->ptr_spec) = ""; | |
d7a9644e | 1631 | sl->next = specs; |
1632 | specs = sl; | |
1633 | } | |
1634 | ||
988c0ffe | 1635 | old_spec = *(sl->ptr_spec); |
274c11d8 | 1636 | *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1])) |
4e2023c8 | 1637 | ? concat (old_spec, spec + 1, NULL) |
713829e9 | 1638 | : xstrdup (spec)); |
8b351d3c | 1639 | |
4582d741 | 1640 | #ifdef DEBUG_SPECS |
1641 | if (verbose_flag) | |
a922df2e | 1642 | fnotice (stderr, "Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec)); |
4582d741 | 1643 | #endif |
1644 | ||
d4ea3b1f | 1645 | /* Free the old spec. */ |
988c0ffe | 1646 | if (old_spec && sl->alloc_p) |
e47a6f81 | 1647 | free (CONST_CAST(char *, old_spec)); |
988c0ffe | 1648 | |
556cfe53 | 1649 | sl->user_p = user_p; |
1650 | sl->alloc_p = true; | |
d7a9644e | 1651 | } |
1652 | \f | |
1653 | /* Accumulate a command (program name and args), and run it. */ | |
1654 | ||
9d9edc85 | 1655 | typedef const char *const_char_p; /* For DEF_VEC_P. */ |
d7a9644e | 1656 | |
9d9edc85 | 1657 | /* Vector of pointers to arguments in the current line of specifications. */ |
d7a9644e | 1658 | |
f1f41a6c | 1659 | static vec<const_char_p> argbuf; |
d7a9644e | 1660 | |
9d9edc85 | 1661 | /* Position in the argbuf vector containing the name of the output file |
dc1dd09b | 1662 | (the value associated with the "-o" flag). */ |
1663 | ||
1664 | static int have_o_argbuf_index = 0; | |
1665 | ||
a2000777 | 1666 | /* Were the options -c, -S or -E passed. */ |
89dfd38d | 1667 | static int have_c = 0; |
1668 | ||
1669 | /* Was the option -o passed. */ | |
1670 | static int have_o = 0; | |
1671 | ||
655a58fa | 1672 | /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated |
1673 | temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for | |
1674 | it here. */ | |
4576c73f | 1675 | |
1676 | static struct temp_name { | |
e40d43cc | 1677 | const char *suffix; /* suffix associated with the code. */ |
4576c73f | 1678 | int length; /* strlen (suffix). */ |
1679 | int unique; /* Indicates whether %g or %u/%U was used. */ | |
e40d43cc | 1680 | const char *filename; /* associated filename. */ |
4576c73f | 1681 | int filename_length; /* strlen (filename). */ |
1682 | struct temp_name *next; | |
1683 | } *temp_names; | |
1526a87c | 1684 | |
d7a9644e | 1685 | /* Number of commands executed so far. */ |
1686 | ||
1687 | static int execution_count; | |
1688 | ||
68360609 | 1689 | /* Number of commands that exited with a signal. */ |
1690 | ||
1691 | static int signal_count; | |
d7a9644e | 1692 | \f |
c21b3276 | 1693 | /* Allocate the argument vector. */ |
1694 | ||
1695 | static void | |
a046944b | 1696 | alloc_args (void) |
c21b3276 | 1697 | { |
f1f41a6c | 1698 | argbuf.create (10); |
c21b3276 | 1699 | } |
1700 | ||
d7a9644e | 1701 | /* Clear out the vector of arguments (after a command is executed). */ |
1702 | ||
1703 | static void | |
952f0048 | 1704 | clear_args (void) |
d7a9644e | 1705 | { |
f1f41a6c | 1706 | argbuf.truncate (0); |
d7a9644e | 1707 | } |
1708 | ||
1709 | /* Add one argument to the vector at the end. | |
1710 | This is done when a space is seen or at the end of the line. | |
1711 | If DELETE_ALWAYS is nonzero, the arg is a filename | |
1712 | and the file should be deleted eventually. | |
1713 | If DELETE_FAILURE is nonzero, the arg is a filename | |
1714 | and the file should be deleted if this compilation fails. */ | |
1715 | ||
1716 | static void | |
952f0048 | 1717 | store_arg (const char *arg, int delete_always, int delete_failure) |
d7a9644e | 1718 | { |
f1f41a6c | 1719 | argbuf.safe_push (arg); |
d7a9644e | 1720 | |
dc1dd09b | 1721 | if (strcmp (arg, "-o") == 0) |
f1f41a6c | 1722 | have_o_argbuf_index = argbuf.length (); |
d7a9644e | 1723 | if (delete_always || delete_failure) |
d9f0ee99 | 1724 | { |
1725 | const char *p; | |
1726 | /* If the temporary file we should delete is specified as | |
1727 | part of a joined argument extract the filename. */ | |
1728 | if (arg[0] == '-' | |
1729 | && (p = strrchr (arg, '='))) | |
1730 | arg = p + 1; | |
1731 | record_temp_file (arg, delete_always, delete_failure); | |
1732 | } | |
d7a9644e | 1733 | } |
1734 | \f | |
424da949 | 1735 | /* Load specs from a file name named FILENAME, replacing occurrences of |
2c815aff | 1736 | various different types of line-endings, \r\n, \n\r and just \r, with |
bee69028 | 1737 | a single \n. */ |
4582d741 | 1738 | |
026f2c7a | 1739 | static char * |
952f0048 | 1740 | load_specs (const char *filename) |
4582d741 | 1741 | { |
1742 | int desc; | |
1743 | int readlen; | |
1744 | struct stat statbuf; | |
1745 | char *buffer; | |
bee69028 | 1746 | char *buffer_p; |
1747 | char *specs; | |
1748 | char *specs_p; | |
4582d741 | 1749 | |
1750 | if (verbose_flag) | |
a922df2e | 1751 | fnotice (stderr, "Reading specs from %s\n", filename); |
4582d741 | 1752 | |
1753 | /* Open and stat the file. */ | |
1754 | desc = open (filename, O_RDONLY, 0); | |
1755 | if (desc < 0) | |
1756 | pfatal_with_name (filename); | |
1757 | if (stat (filename, &statbuf) < 0) | |
1758 | pfatal_with_name (filename); | |
1759 | ||
1760 | /* Read contents of file into BUFFER. */ | |
4c36ffe6 | 1761 | buffer = XNEWVEC (char, statbuf.st_size + 1); |
4582d741 | 1762 | readlen = read (desc, buffer, (unsigned) statbuf.st_size); |
1763 | if (readlen < 0) | |
1764 | pfatal_with_name (filename); | |
1765 | buffer[readlen] = 0; | |
1766 | close (desc); | |
1767 | ||
4c36ffe6 | 1768 | specs = XNEWVEC (char, readlen + 1); |
bee69028 | 1769 | specs_p = specs; |
1770 | for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++) | |
1771 | { | |
1772 | int skip = 0; | |
1773 | char c = *buffer_p; | |
1774 | if (c == '\r') | |
026f2c7a | 1775 | { |
1776 | if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */ | |
bee69028 | 1777 | skip = 1; |
026f2c7a | 1778 | else if (*(buffer_p + 1) == '\n') /* \r\n */ |
bee69028 | 1779 | skip = 1; |
1780 | else /* \r */ | |
1781 | c = '\n'; | |
1782 | } | |
1783 | if (! skip) | |
1784 | *specs_p++ = c; | |
1785 | } | |
1786 | *specs_p = '\0'; | |
1787 | ||
1788 | free (buffer); | |
1789 | return (specs); | |
1790 | } | |
1791 | ||
1792 | /* Read compilation specs from a file named FILENAME, | |
1793 | replacing the default ones. | |
1794 | ||
1795 | A suffix which starts with `*' is a definition for | |
1796 | one of the machine-specific sub-specs. The "suffix" should be | |
537c4bc6 | 1797 | *asm, *cc1, *cpp, *link, *startfile, etc. |
bee69028 | 1798 | The corresponding spec is stored in asm_spec, etc., |
1799 | rather than in the `compilers' vector. | |
1800 | ||
1801 | Anything invalid in the file is a fatal error. */ | |
1802 | ||
1803 | static void | |
556cfe53 | 1804 | read_specs (const char *filename, bool main_p, bool user_p) |
bee69028 | 1805 | { |
1806 | char *buffer; | |
19cb6b50 | 1807 | char *p; |
bee69028 | 1808 | |
1809 | buffer = load_specs (filename); | |
1810 | ||
4582d741 | 1811 | /* Scan BUFFER for specs, putting them in the vector. */ |
1812 | p = buffer; | |
1813 | while (1) | |
1814 | { | |
1815 | char *suffix; | |
1816 | char *spec; | |
1817 | char *in, *out, *p1, *p2, *p3; | |
1818 | ||
1819 | /* Advance P in BUFFER to the next nonblank nocomment line. */ | |
1820 | p = skip_whitespace (p); | |
1821 | if (*p == 0) | |
1822 | break; | |
1823 | ||
1824 | /* Is this a special command that starts with '%'? */ | |
1825 | /* Don't allow this for the main specs file, since it would | |
1826 | encourage people to overwrite it. */ | |
1827 | if (*p == '%' && !main_p) | |
1828 | { | |
1829 | p1 = p; | |
0dbd1c74 | 1830 | while (*p && *p != '\n') |
1831 | p++; | |
1832 | ||
026f2c7a | 1833 | /* Skip '\n'. */ |
1834 | p++; | |
4582d741 | 1835 | |
026f2c7a | 1836 | if (!strncmp (p1, "%include", sizeof ("%include") - 1) |
0dbd1c74 | 1837 | && (p1[sizeof "%include" - 1] == ' ' |
1838 | || p1[sizeof "%include" - 1] == '\t')) | |
4582d741 | 1839 | { |
1840 | char *new_filename; | |
1841 | ||
1842 | p1 += sizeof ("%include"); | |
0dbd1c74 | 1843 | while (*p1 == ' ' || *p1 == '\t') |
1844 | p1++; | |
4582d741 | 1845 | |
1846 | if (*p1++ != '<' || p[-2] != '>') | |
a922df2e | 1847 | fatal_error ("specs %%include syntax malformed after " |
1848 | "%ld characters", | |
1849 | (long) (p1 - buffer + 1)); | |
4582d741 | 1850 | |
1851 | p[-2] = '\0'; | |
067277c3 | 1852 | new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true); |
556cfe53 | 1853 | read_specs (new_filename ? new_filename : p1, false, user_p); |
4582d741 | 1854 | continue; |
1855 | } | |
0dbd1c74 | 1856 | else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1) |
1857 | && (p1[sizeof "%include_noerr" - 1] == ' ' | |
1858 | || p1[sizeof "%include_noerr" - 1] == '\t')) | |
4582d741 | 1859 | { |
1860 | char *new_filename; | |
1861 | ||
0dbd1c74 | 1862 | p1 += sizeof "%include_noerr"; |
026f2c7a | 1863 | while (*p1 == ' ' || *p1 == '\t') |
1864 | p1++; | |
4582d741 | 1865 | |
1866 | if (*p1++ != '<' || p[-2] != '>') | |
a922df2e | 1867 | fatal_error ("specs %%include syntax malformed after " |
1868 | "%ld characters", | |
1869 | (long) (p1 - buffer + 1)); | |
4582d741 | 1870 | |
1871 | p[-2] = '\0'; | |
067277c3 | 1872 | new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true); |
4582d741 | 1873 | if (new_filename) |
556cfe53 | 1874 | read_specs (new_filename, false, user_p); |
4582d741 | 1875 | else if (verbose_flag) |
a922df2e | 1876 | fnotice (stderr, "could not find specs file %s\n", p1); |
4582d741 | 1877 | continue; |
1878 | } | |
0dbd1c74 | 1879 | else if (!strncmp (p1, "%rename", sizeof "%rename" - 1) |
1880 | && (p1[sizeof "%rename" - 1] == ' ' | |
1881 | || p1[sizeof "%rename" - 1] == '\t')) | |
4582d741 | 1882 | { |
1883 | int name_len; | |
1884 | struct spec_list *sl; | |
1686d9b4 | 1885 | struct spec_list *newsl; |
4582d741 | 1886 | |
1686d9b4 | 1887 | /* Get original name. */ |
0dbd1c74 | 1888 | p1 += sizeof "%rename"; |
1889 | while (*p1 == ' ' || *p1 == '\t') | |
1890 | p1++; | |
1891 | ||
2c815aff | 1892 | if (! ISALPHA ((unsigned char) *p1)) |
a922df2e | 1893 | fatal_error ("specs %%rename syntax malformed after " |
1894 | "%ld characters", | |
1895 | (long) (p1 - buffer)); | |
4582d741 | 1896 | |
1897 | p2 = p1; | |
2c815aff | 1898 | while (*p2 && !ISSPACE ((unsigned char) *p2)) |
0dbd1c74 | 1899 | p2++; |
1900 | ||
4582d741 | 1901 | if (*p2 != ' ' && *p2 != '\t') |
a922df2e | 1902 | fatal_error ("specs %%rename syntax malformed after " |
1903 | "%ld characters", | |
1904 | (long) (p2 - buffer)); | |
4582d741 | 1905 | |
1906 | name_len = p2 - p1; | |
1907 | *p2++ = '\0'; | |
0dbd1c74 | 1908 | while (*p2 == ' ' || *p2 == '\t') |
1909 | p2++; | |
1910 | ||
2c815aff | 1911 | if (! ISALPHA ((unsigned char) *p2)) |
a922df2e | 1912 | fatal_error ("specs %%rename syntax malformed after " |
1913 | "%ld characters", | |
1914 | (long) (p2 - buffer)); | |
4582d741 | 1915 | |
026f2c7a | 1916 | /* Get new spec name. */ |
4582d741 | 1917 | p3 = p2; |
2c815aff | 1918 | while (*p3 && !ISSPACE ((unsigned char) *p3)) |
0dbd1c74 | 1919 | p3++; |
1920 | ||
026f2c7a | 1921 | if (p3 != p - 1) |
a922df2e | 1922 | fatal_error ("specs %%rename syntax malformed after " |
1923 | "%ld characters", | |
1924 | (long) (p3 - buffer)); | |
4582d741 | 1925 | *p3 = '\0'; |
1926 | ||
1927 | for (sl = specs; sl; sl = sl->next) | |
1928 | if (name_len == sl->name_len && !strcmp (sl->name, p1)) | |
1929 | break; | |
1930 | ||
1931 | if (!sl) | |
a922df2e | 1932 | fatal_error ("specs %s spec was not found to be renamed", p1); |
4582d741 | 1933 | |
0dbd1c74 | 1934 | if (strcmp (p1, p2) == 0) |
4582d741 | 1935 | continue; |
1936 | ||
1686d9b4 | 1937 | for (newsl = specs; newsl; newsl = newsl->next) |
1938 | if (strcmp (newsl->name, p2) == 0) | |
a8c464ac | 1939 | fatal_error ("%s: attempt to rename spec %qs to " |
1940 | "already defined spec %qs", | |
1686d9b4 | 1941 | filename, p1, p2); |
1942 | ||
4582d741 | 1943 | if (verbose_flag) |
1944 | { | |
a922df2e | 1945 | fnotice (stderr, "rename spec %s to %s\n", p1, p2); |
4582d741 | 1946 | #ifdef DEBUG_SPECS |
a922df2e | 1947 | fnotice (stderr, "spec is '%s'\n\n", *(sl->ptr_spec)); |
4582d741 | 1948 | #endif |
1949 | } | |
1950 | ||
556cfe53 | 1951 | set_spec (p2, *(sl->ptr_spec), user_p); |
4582d741 | 1952 | if (sl->alloc_p) |
e47a6f81 | 1953 | free (CONST_CAST (char *, *(sl->ptr_spec))); |
4582d741 | 1954 | |
1955 | *(sl->ptr_spec) = ""; | |
1956 | sl->alloc_p = 0; | |
1957 | continue; | |
1958 | } | |
1959 | else | |
a922df2e | 1960 | fatal_error ("specs unknown %% command after %ld characters", |
1961 | (long) (p1 - buffer)); | |
4582d741 | 1962 | } |
1963 | ||
1964 | /* Find the colon that should end the suffix. */ | |
1965 | p1 = p; | |
0dbd1c74 | 1966 | while (*p1 && *p1 != ':' && *p1 != '\n') |
1967 | p1++; | |
1968 | ||
4582d741 | 1969 | /* The colon shouldn't be missing. */ |
1970 | if (*p1 != ':') | |
a922df2e | 1971 | fatal_error ("specs file malformed after %ld characters", |
1972 | (long) (p1 - buffer)); | |
0dbd1c74 | 1973 | |
4582d741 | 1974 | /* Skip back over trailing whitespace. */ |
1975 | p2 = p1; | |
0dbd1c74 | 1976 | while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) |
1977 | p2--; | |
1978 | ||
4582d741 | 1979 | /* Copy the suffix to a string. */ |
1980 | suffix = save_string (p, p2 - p); | |
1981 | /* Find the next line. */ | |
1982 | p = skip_whitespace (p1 + 1); | |
1983 | if (p[1] == 0) | |
a922df2e | 1984 | fatal_error ("specs file malformed after %ld characters", |
1985 | (long) (p - buffer)); | |
0dbd1c74 | 1986 | |
4582d741 | 1987 | p1 = p; |
623feb20 | 1988 | /* Find next blank line or end of string. */ |
1989 | while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0'))) | |
0dbd1c74 | 1990 | p1++; |
1991 | ||
4582d741 | 1992 | /* Specs end at the blank line and do not include the newline. */ |
1993 | spec = save_string (p, p1 - p); | |
1994 | p = p1; | |
1995 | ||
1996 | /* Delete backslash-newline sequences from the spec. */ | |
1997 | in = spec; | |
1998 | out = spec; | |
1999 | while (*in != 0) | |
2000 | { | |
2001 | if (in[0] == '\\' && in[1] == '\n') | |
2002 | in += 2; | |
2003 | else if (in[0] == '#') | |
0dbd1c74 | 2004 | while (*in && *in != '\n') |
2005 | in++; | |
2006 | ||
4582d741 | 2007 | else |
2008 | *out++ = *in++; | |
2009 | } | |
2010 | *out = 0; | |
2011 | ||
2012 | if (suffix[0] == '*') | |
2013 | { | |
2014 | if (! strcmp (suffix, "*link_command")) | |
2015 | link_command_spec = spec; | |
2016 | else | |
556cfe53 | 2017 | set_spec (suffix + 1, spec, user_p); |
4582d741 | 2018 | } |
2019 | else | |
2020 | { | |
2021 | /* Add this pair to the vector. */ | |
2022 | compilers | |
25a1c410 | 2023 | = XRESIZEVEC (struct compiler, compilers, n_compilers + 2); |
0dbd1c74 | 2024 | |
4582d741 | 2025 | compilers[n_compilers].suffix = suffix; |
1cf79a1a | 2026 | compilers[n_compilers].spec = spec; |
4582d741 | 2027 | n_compilers++; |
7f0b0c27 | 2028 | memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]); |
4582d741 | 2029 | } |
2030 | ||
2031 | if (*suffix == 0) | |
2032 | link_command_spec = spec; | |
2033 | } | |
2034 | ||
2035 | if (link_command_spec == 0) | |
a922df2e | 2036 | fatal_error ("spec file has no spec for linking"); |
4582d741 | 2037 | } |
2038 | \f | |
d7a9644e | 2039 | /* Record the names of temporary files we tell compilers to write, |
2040 | and delete them at the end of the run. */ | |
2041 | ||
774abee6 | 2042 | /* This is the common prefix we use to make temp file names. |
2043 | It is chosen once for each run of this program. | |
2044 | It is substituted into a spec by %g or %j. | |
2045 | Thus, all temp file names contain this prefix. | |
2046 | In practice, all temp file names start with this prefix. | |
2047 | ||
2048 | This prefix comes from the envvar TMPDIR if it is defined; | |
2049 | otherwise, from the P_tmpdir macro if that is defined; | |
2050 | otherwise, in /usr/tmp or /tmp; | |
2051 | or finally the current directory if all else fails. */ | |
2052 | ||
2053 | static const char *temp_filename; | |
2054 | ||
2055 | /* Length of the prefix. */ | |
2056 | ||
2057 | static int temp_filename_length; | |
2058 | ||
d7a9644e | 2059 | /* Define the list of temporary files to delete. */ |
2060 | ||
2061 | struct temp_file | |
2062 | { | |
e40d43cc | 2063 | const char *name; |
d7a9644e | 2064 | struct temp_file *next; |
2065 | }; | |
2066 | ||
2067 | /* Queue of files to delete on success or failure of compilation. */ | |
2068 | static struct temp_file *always_delete_queue; | |
2069 | /* Queue of files to delete on failure of compilation. */ | |
2070 | static struct temp_file *failure_delete_queue; | |
2071 | ||
2072 | /* Record FILENAME as a file to be deleted automatically. | |
2073 | ALWAYS_DELETE nonzero means delete it if all compilation succeeds; | |
2074 | otherwise delete it in any case. | |
2075 | FAIL_DELETE nonzero means delete it if a compilation step fails; | |
2076 | otherwise delete it in any case. */ | |
2077 | ||
833a5c07 | 2078 | void |
952f0048 | 2079 | record_temp_file (const char *filename, int always_delete, int fail_delete) |
d7a9644e | 2080 | { |
19cb6b50 | 2081 | char *const name = xstrdup (filename); |
d7a9644e | 2082 | |
2083 | if (always_delete) | |
2084 | { | |
19cb6b50 | 2085 | struct temp_file *temp; |
d7a9644e | 2086 | for (temp = always_delete_queue; temp; temp = temp->next) |
82715bcd | 2087 | if (! filename_cmp (name, temp->name)) |
d7a9644e | 2088 | goto already1; |
0dbd1c74 | 2089 | |
4c36ffe6 | 2090 | temp = XNEW (struct temp_file); |
d7a9644e | 2091 | temp->next = always_delete_queue; |
2092 | temp->name = name; | |
2093 | always_delete_queue = temp; | |
0dbd1c74 | 2094 | |
d7a9644e | 2095 | already1:; |
2096 | } | |
2097 | ||
2098 | if (fail_delete) | |
2099 | { | |
19cb6b50 | 2100 | struct temp_file *temp; |
d7a9644e | 2101 | for (temp = failure_delete_queue; temp; temp = temp->next) |
82715bcd | 2102 | if (! filename_cmp (name, temp->name)) |
ce0fdb91 | 2103 | { |
2104 | free (name); | |
2105 | goto already2; | |
2106 | } | |
0dbd1c74 | 2107 | |
4c36ffe6 | 2108 | temp = XNEW (struct temp_file); |
d7a9644e | 2109 | temp->next = failure_delete_queue; |
2110 | temp->name = name; | |
2111 | failure_delete_queue = temp; | |
0dbd1c74 | 2112 | |
d7a9644e | 2113 | already2:; |
2114 | } | |
2115 | } | |
2116 | ||
2117 | /* Delete all the temporary files whose names we previously recorded. */ | |
2118 | ||
767efd18 | 2119 | #ifndef DELETE_IF_ORDINARY |
2120 | #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \ | |
2121 | do \ | |
2122 | { \ | |
2123 | if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \ | |
2124 | if (unlink (NAME) < 0) \ | |
2125 | if (VERBOSE_FLAG) \ | |
2126 | perror_with_name (NAME); \ | |
2127 | } while (0) | |
2128 | #endif | |
2129 | ||
8149a4fc | 2130 | static void |
952f0048 | 2131 | delete_if_ordinary (const char *name) |
8149a4fc | 2132 | { |
2133 | struct stat st; | |
2134 | #ifdef DEBUG | |
2135 | int i, c; | |
2136 | ||
2137 | printf ("Delete %s? (y or n) ", name); | |
2138 | fflush (stdout); | |
2139 | i = getchar (); | |
2140 | if (i != '\n') | |
0dbd1c74 | 2141 | while ((c = getchar ()) != '\n' && c != EOF) |
2142 | ; | |
2143 | ||
8149a4fc | 2144 | if (i == 'y' || i == 'Y') |
2145 | #endif /* DEBUG */ | |
767efd18 | 2146 | DELETE_IF_ORDINARY (name, st, verbose_flag); |
8149a4fc | 2147 | } |
2148 | ||
d7a9644e | 2149 | static void |
952f0048 | 2150 | delete_temp_files (void) |
d7a9644e | 2151 | { |
19cb6b50 | 2152 | struct temp_file *temp; |
d7a9644e | 2153 | |
2154 | for (temp = always_delete_queue; temp; temp = temp->next) | |
8149a4fc | 2155 | delete_if_ordinary (temp->name); |
d7a9644e | 2156 | always_delete_queue = 0; |
2157 | } | |
2158 | ||
2159 | /* Delete all the files to be deleted on error. */ | |
2160 | ||
2161 | static void | |
952f0048 | 2162 | delete_failure_queue (void) |
d7a9644e | 2163 | { |
19cb6b50 | 2164 | struct temp_file *temp; |
d7a9644e | 2165 | |
2166 | for (temp = failure_delete_queue; temp; temp = temp->next) | |
8149a4fc | 2167 | delete_if_ordinary (temp->name); |
d7a9644e | 2168 | } |
2169 | ||
2170 | static void | |
952f0048 | 2171 | clear_failure_queue (void) |
d7a9644e | 2172 | { |
2173 | failure_delete_queue = 0; | |
2174 | } | |
8894538a | 2175 | \f |
067277c3 | 2176 | /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK |
2177 | returns non-NULL. | |
2178 | If DO_MULTI is true iterate over the paths twice, first with multilib | |
2179 | suffix then without, otherwise iterate over the paths once without | |
2180 | adding a multilib suffix. When DO_MULTI is true, some attempt is made | |
2181 | to avoid visiting the same path twice, but we could do better. For | |
2182 | instance, /usr/lib/../lib is considered different from /usr/lib. | |
2183 | At least EXTRA_SPACE chars past the end of the path passed to | |
2184 | CALLBACK are available for use by the callback. | |
2185 | CALLBACK_INFO allows extra parameters to be passed to CALLBACK. | |
2186 | ||
2187 | Returns the value returned by CALLBACK. */ | |
2188 | ||
2189 | static void * | |
2190 | for_each_path (const struct path_prefix *paths, | |
2191 | bool do_multi, | |
2192 | size_t extra_space, | |
2193 | void *(*callback) (char *, void *), | |
2194 | void *callback_info) | |
8894538a | 2195 | { |
067277c3 | 2196 | struct prefix_list *pl; |
2197 | const char *multi_dir = NULL; | |
2198 | const char *multi_os_dir = NULL; | |
77adc39e | 2199 | const char *multiarch_suffix = NULL; |
067277c3 | 2200 | const char *multi_suffix; |
2201 | const char *just_multi_suffix; | |
2202 | char *path = NULL; | |
2203 | void *ret = NULL; | |
2204 | bool skip_multi_dir = false; | |
2205 | bool skip_multi_os_dir = false; | |
2206 | ||
2207 | multi_suffix = machine_suffix; | |
2208 | just_multi_suffix = just_machine_suffix; | |
2209 | if (do_multi && multilib_dir && strcmp (multilib_dir, ".") != 0) | |
8894538a | 2210 | { |
067277c3 | 2211 | multi_dir = concat (multilib_dir, dir_separator_str, NULL); |
2212 | multi_suffix = concat (multi_suffix, multi_dir, NULL); | |
2213 | just_multi_suffix = concat (just_multi_suffix, multi_dir, NULL); | |
2214 | } | |
2215 | if (do_multi && multilib_os_dir && strcmp (multilib_os_dir, ".") != 0) | |
2216 | multi_os_dir = concat (multilib_os_dir, dir_separator_str, NULL); | |
77adc39e | 2217 | if (multiarch_dir) |
2218 | multiarch_suffix = concat (multiarch_dir, dir_separator_str, NULL); | |
8894538a | 2219 | |
067277c3 | 2220 | while (1) |
2221 | { | |
2222 | size_t multi_dir_len = 0; | |
2223 | size_t multi_os_dir_len = 0; | |
77adc39e | 2224 | size_t multiarch_len = 0; |
067277c3 | 2225 | size_t suffix_len; |
2226 | size_t just_suffix_len; | |
2227 | size_t len; | |
2228 | ||
2229 | if (multi_dir) | |
2230 | multi_dir_len = strlen (multi_dir); | |
2231 | if (multi_os_dir) | |
2232 | multi_os_dir_len = strlen (multi_os_dir); | |
77adc39e | 2233 | if (multiarch_suffix) |
2234 | multiarch_len = strlen (multiarch_suffix); | |
067277c3 | 2235 | suffix_len = strlen (multi_suffix); |
2236 | just_suffix_len = strlen (just_multi_suffix); | |
2237 | ||
2238 | if (path == NULL) | |
8894538a | 2239 | { |
067277c3 | 2240 | len = paths->max_len + extra_space + 1; |
77adc39e | 2241 | len += MAX (MAX (suffix_len, multi_os_dir_len), multiarch_len); |
4c36ffe6 | 2242 | path = XNEWVEC (char, len); |
8894538a | 2243 | } |
2244 | ||
067277c3 | 2245 | for (pl = paths->plist; pl != 0; pl = pl->next) |
3ec1fc1b | 2246 | { |
067277c3 | 2247 | len = strlen (pl->prefix); |
2248 | memcpy (path, pl->prefix, len); | |
2c815aff | 2249 | |
067277c3 | 2250 | /* Look first in MACHINE/VERSION subdirectory. */ |
2251 | if (!skip_multi_dir) | |
2252 | { | |
2253 | memcpy (path + len, multi_suffix, suffix_len + 1); | |
2254 | ret = callback (path, callback_info); | |
2255 | if (ret) | |
2256 | break; | |
2257 | } | |
2258 | ||
2259 | /* Some paths are tried with just the machine (ie. target) | |
2260 | subdir. This is used for finding as, ld, etc. */ | |
2261 | if (!skip_multi_dir | |
2262 | && pl->require_machine_suffix == 2) | |
2263 | { | |
2264 | memcpy (path + len, just_multi_suffix, just_suffix_len + 1); | |
2265 | ret = callback (path, callback_info); | |
2266 | if (ret) | |
2267 | break; | |
2268 | } | |
2269 | ||
77adc39e | 2270 | /* Now try the multiarch path. */ |
2271 | if (!skip_multi_dir | |
2272 | && !pl->require_machine_suffix && multiarch_dir) | |
2273 | { | |
2274 | memcpy (path + len, multiarch_suffix, multiarch_len + 1); | |
2275 | ret = callback (path, callback_info); | |
2276 | if (ret) | |
2277 | break; | |
2278 | } | |
2279 | ||
067277c3 | 2280 | /* Now try the base path. */ |
2281 | if (!pl->require_machine_suffix | |
2282 | && !(pl->os_multilib ? skip_multi_os_dir : skip_multi_dir)) | |
2283 | { | |
2284 | const char *this_multi; | |
2285 | size_t this_multi_len; | |
2286 | ||
2287 | if (pl->os_multilib) | |
2288 | { | |
2289 | this_multi = multi_os_dir; | |
2290 | this_multi_len = multi_os_dir_len; | |
2291 | } | |
2292 | else | |
2293 | { | |
2294 | this_multi = multi_dir; | |
2295 | this_multi_len = multi_dir_len; | |
2296 | } | |
2297 | ||
2298 | if (this_multi_len) | |
2299 | memcpy (path + len, this_multi, this_multi_len + 1); | |
2300 | else | |
2301 | path[len] = '\0'; | |
2302 | ||
2303 | ret = callback (path, callback_info); | |
2304 | if (ret) | |
2305 | break; | |
2306 | } | |
3ec1fc1b | 2307 | } |
067277c3 | 2308 | if (pl) |
2309 | break; | |
3ec1fc1b | 2310 | |
067277c3 | 2311 | if (multi_dir == NULL && multi_os_dir == NULL) |
2312 | break; | |
8894538a | 2313 | |
067277c3 | 2314 | /* Run through the paths again, this time without multilibs. |
2315 | Don't repeat any we have already seen. */ | |
2316 | if (multi_dir) | |
2317 | { | |
e47a6f81 | 2318 | free (CONST_CAST (char *, multi_dir)); |
067277c3 | 2319 | multi_dir = NULL; |
e47a6f81 | 2320 | free (CONST_CAST (char *, multi_suffix)); |
067277c3 | 2321 | multi_suffix = machine_suffix; |
e47a6f81 | 2322 | free (CONST_CAST (char *, just_multi_suffix)); |
067277c3 | 2323 | just_multi_suffix = just_machine_suffix; |
8894538a | 2324 | } |
067277c3 | 2325 | else |
2326 | skip_multi_dir = true; | |
2327 | if (multi_os_dir) | |
2328 | { | |
e47a6f81 | 2329 | free (CONST_CAST (char *, multi_os_dir)); |
067277c3 | 2330 | multi_os_dir = NULL; |
2331 | } | |
2332 | else | |
2333 | skip_multi_os_dir = true; | |
2334 | } | |
2335 | ||
2336 | if (multi_dir) | |
2337 | { | |
e47a6f81 | 2338 | free (CONST_CAST (char *, multi_dir)); |
2339 | free (CONST_CAST (char *, multi_suffix)); | |
2340 | free (CONST_CAST (char *, just_multi_suffix)); | |
8894538a | 2341 | } |
067277c3 | 2342 | if (multi_os_dir) |
e47a6f81 | 2343 | free (CONST_CAST (char *, multi_os_dir)); |
067277c3 | 2344 | if (ret != path) |
2345 | free (path); | |
2346 | return ret; | |
2347 | } | |
2348 | ||
2349 | /* Callback for build_search_list. Adds path to obstack being built. */ | |
2350 | ||
2351 | struct add_to_obstack_info { | |
2352 | struct obstack *ob; | |
2353 | bool check_dir; | |
2354 | bool first_time; | |
2355 | }; | |
2356 | ||
2357 | static void * | |
2358 | add_to_obstack (char *path, void *data) | |
2359 | { | |
25a1c410 | 2360 | struct add_to_obstack_info *info = (struct add_to_obstack_info *) data; |
067277c3 | 2361 | |
2362 | if (info->check_dir && !is_directory (path, false)) | |
2363 | return NULL; | |
2364 | ||
2365 | if (!info->first_time) | |
2366 | obstack_1grow (info->ob, PATH_SEPARATOR); | |
2367 | ||
2368 | obstack_grow (info->ob, path, strlen (path)); | |
2369 | ||
2370 | info->first_time = false; | |
2371 | return NULL; | |
2372 | } | |
2373 | ||
99c00302 | 2374 | /* Add or change the value of an environment variable, outputting the |
2375 | change to standard error if in verbose mode. */ | |
2376 | static void | |
e8105390 | 2377 | xputenv (const char *string) |
99c00302 | 2378 | { |
2379 | if (verbose_flag) | |
a922df2e | 2380 | fnotice (stderr, "%s\n", string); |
e8105390 | 2381 | putenv (CONST_CAST (char *, string)); |
99c00302 | 2382 | } |
2383 | ||
067277c3 | 2384 | /* Build a list of search directories from PATHS. |
2385 | PREFIX is a string to prepend to the list. | |
2386 | If CHECK_DIR_P is true we ensure the directory exists. | |
2387 | If DO_MULTI is true, multilib paths are output first, then | |
2388 | non-multilib paths. | |
2389 | This is used mostly by putenv_from_prefixes so we use `collect_obstack'. | |
2390 | It is also used by the --print-search-dirs flag. */ | |
2391 | ||
2392 | static char * | |
2393 | build_search_list (const struct path_prefix *paths, const char *prefix, | |
2394 | bool check_dir, bool do_multi) | |
2395 | { | |
2396 | struct add_to_obstack_info info; | |
2397 | ||
2398 | info.ob = &collect_obstack; | |
2399 | info.check_dir = check_dir; | |
2400 | info.first_time = true; | |
2401 | ||
2402 | obstack_grow (&collect_obstack, prefix, strlen (prefix)); | |
2403 | obstack_1grow (&collect_obstack, '='); | |
2404 | ||
2405 | for_each_path (paths, do_multi, 0, add_to_obstack, &info); | |
0dbd1c74 | 2406 | |
4347db8e | 2407 | obstack_1grow (&collect_obstack, '\0'); |
4fac984f | 2408 | return XOBFINISH (&collect_obstack, char *); |
8894538a | 2409 | } |
2410 | ||
a92771b8 | 2411 | /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables |
2412 | for collect. */ | |
71cee7b1 | 2413 | |
2414 | static void | |
067277c3 | 2415 | putenv_from_prefixes (const struct path_prefix *paths, const char *env_var, |
2416 | bool do_multi) | |
71cee7b1 | 2417 | { |
99c00302 | 2418 | xputenv (build_search_list (paths, env_var, true, do_multi)); |
71cee7b1 | 2419 | } |
d7a9644e | 2420 | \f |
4d5a901b | 2421 | /* Check whether NAME can be accessed in MODE. This is like access, |
2422 | except that it never considers directories to be executable. */ | |
2423 | ||
2424 | static int | |
952f0048 | 2425 | access_check (const char *name, int mode) |
4d5a901b | 2426 | { |
2427 | if (mode == X_OK) | |
2428 | { | |
2429 | struct stat st; | |
2430 | ||
2431 | if (stat (name, &st) < 0 | |
2432 | || S_ISDIR (st.st_mode)) | |
2433 | return -1; | |
2434 | } | |
2435 | ||
2436 | return access (name, mode); | |
2437 | } | |
2438 | ||
067277c3 | 2439 | /* Callback for find_a_file. Appends the file name to the directory |
2440 | path. If the resulting file exists in the right mode, return the | |
2441 | full pathname to the file. */ | |
2442 | ||
2443 | struct file_at_path_info { | |
2444 | const char *name; | |
2445 | const char *suffix; | |
2446 | int name_len; | |
2447 | int suffix_len; | |
2448 | int mode; | |
2449 | }; | |
2450 | ||
2451 | static void * | |
2452 | file_at_path (char *path, void *data) | |
2453 | { | |
25a1c410 | 2454 | struct file_at_path_info *info = (struct file_at_path_info *) data; |
067277c3 | 2455 | size_t len = strlen (path); |
2456 | ||
2457 | memcpy (path + len, info->name, info->name_len); | |
2458 | len += info->name_len; | |
2459 | ||
2460 | /* Some systems have a suffix for executable files. | |
2461 | So try appending that first. */ | |
2462 | if (info->suffix_len) | |
2463 | { | |
2464 | memcpy (path + len, info->suffix, info->suffix_len + 1); | |
2465 | if (access_check (path, info->mode) == 0) | |
2466 | return path; | |
2467 | } | |
2468 | ||
2469 | path[len] = '\0'; | |
2470 | if (access_check (path, info->mode) == 0) | |
2471 | return path; | |
2472 | ||
2473 | return NULL; | |
2474 | } | |
2475 | ||
d7a9644e | 2476 | /* Search for NAME using the prefix list PREFIXES. MODE is passed to |
067277c3 | 2477 | access to check permissions. If DO_MULTI is true, search multilib |
2478 | paths then non-multilib paths, otherwise do not search multilib paths. | |
a92771b8 | 2479 | Return 0 if not found, otherwise return its name, allocated with malloc. */ |
d7a9644e | 2480 | |
2481 | static char * | |
067277c3 | 2482 | find_a_file (const struct path_prefix *pprefix, const char *name, int mode, |
2483 | bool do_multi) | |
d7a9644e | 2484 | { |
067277c3 | 2485 | struct file_at_path_info info; |
d7a9644e | 2486 | |
f07251bc | 2487 | #ifdef DEFAULT_ASSEMBLER |
7d3bd8c0 | 2488 | if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0) |
713829e9 | 2489 | return xstrdup (DEFAULT_ASSEMBLER); |
f07251bc | 2490 | #endif |
2491 | ||
2492 | #ifdef DEFAULT_LINKER | |
713829e9 | 2493 | if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0) |
2494 | return xstrdup (DEFAULT_LINKER); | |
f07251bc | 2495 | #endif |
2496 | ||
d7a9644e | 2497 | /* Determine the filename to execute (special case for absolute paths). */ |
2498 | ||
a5c088d4 | 2499 | if (IS_ABSOLUTE_PATH (name)) |
d7a9644e | 2500 | { |
f07251bc | 2501 | if (access (name, mode) == 0) |
067277c3 | 2502 | return xstrdup (name); |
757f7e66 | 2503 | |
067277c3 | 2504 | return NULL; |
2505 | } | |
757f7e66 | 2506 | |
067277c3 | 2507 | info.name = name; |
2508 | info.suffix = (mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : ""; | |
2509 | info.name_len = strlen (info.name); | |
2510 | info.suffix_len = strlen (info.suffix); | |
2511 | info.mode = mode; | |
d7a9644e | 2512 | |
25a1c410 | 2513 | return (char*) for_each_path (pprefix, do_multi, |
2514 | info.name_len + info.suffix_len, | |
2515 | file_at_path, &info); | |
d7a9644e | 2516 | } |
2517 | ||
acd84059 | 2518 | /* Ranking of prefixes in the sort list. -B prefixes are put before |
2c815aff | 2519 | all others. */ |
acd84059 | 2520 | |
2521 | enum path_prefix_priority | |
2522 | { | |
2523 | PREFIX_PRIORITY_B_OPT, | |
2524 | PREFIX_PRIORITY_LAST | |
2525 | }; | |
2526 | ||
98667efb | 2527 | /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending |
acd84059 | 2528 | order according to PRIORITY. Within each PRIORITY, new entries are |
2529 | appended. | |
d7a9644e | 2530 | |
2531 | If WARN is nonzero, we will warn if no file is found | |
2532 | through this prefix. WARN should point to an int | |
3ec1fc1b | 2533 | which will be set to 1 if this entry is used. |
2534 | ||
0dbd1c74 | 2535 | COMPONENT is the value to be passed to update_path. |
2536 | ||
3ec1fc1b | 2537 | REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without |
2538 | the complete value of machine_suffix. | |
2539 | 2 means try both machine_suffix and just_machine_suffix. */ | |
d7a9644e | 2540 | |
2541 | static void | |
952f0048 | 2542 | add_prefix (struct path_prefix *pprefix, const char *prefix, |
2543 | const char *component, /* enum prefix_priority */ int priority, | |
2af84186 | 2544 | int require_machine_suffix, int os_multilib) |
d7a9644e | 2545 | { |
2546 | struct prefix_list *pl, **prev; | |
2547 | int len; | |
2548 | ||
acd84059 | 2549 | for (prev = &pprefix->plist; |
2550 | (*prev) != NULL && (*prev)->priority <= priority; | |
2551 | prev = &(*prev)->next) | |
2552 | ; | |
d7a9644e | 2553 | |
2358393e | 2554 | /* Keep track of the longest prefix. */ |
d7a9644e | 2555 | |
0dbd1c74 | 2556 | prefix = update_path (prefix, component); |
d7a9644e | 2557 | len = strlen (prefix); |
2558 | if (len > pprefix->max_len) | |
2559 | pprefix->max_len = len; | |
2560 | ||
4c36ffe6 | 2561 | pl = XNEW (struct prefix_list); |
17b80c08 | 2562 | pl->prefix = prefix; |
d7a9644e | 2563 | pl->require_machine_suffix = require_machine_suffix; |
acd84059 | 2564 | pl->priority = priority; |
c954ff02 | 2565 | pl->os_multilib = os_multilib; |
d7a9644e | 2566 | |
2358393e | 2567 | /* Insert after PREV. */ |
acd84059 | 2568 | pl->next = (*prev); |
2569 | (*prev) = pl; | |
d7a9644e | 2570 | } |
805e22b2 | 2571 | |
2572 | /* Same as add_prefix, but prepending target_system_root to prefix. */ | |
c4328bcc | 2573 | /* The target_system_root prefix has been relocated by gcc_exec_prefix. */ |
805e22b2 | 2574 | static void |
952f0048 | 2575 | add_sysrooted_prefix (struct path_prefix *pprefix, const char *prefix, |
2576 | const char *component, | |
2577 | /* enum prefix_priority */ int priority, | |
2af84186 | 2578 | int require_machine_suffix, int os_multilib) |
805e22b2 | 2579 | { |
a5c088d4 | 2580 | if (!IS_ABSOLUTE_PATH (prefix)) |
a8c464ac | 2581 | fatal_error ("system path %qs is not absolute", prefix); |
805e22b2 | 2582 | |
2583 | if (target_system_root) | |
2584 | { | |
c5698d9f | 2585 | char *sysroot_no_trailing_dir_separator = xstrdup (target_system_root); |
2586 | size_t sysroot_len = strlen (target_system_root); | |
2587 | ||
2588 | if (sysroot_len > 0 | |
2589 | && target_system_root[sysroot_len - 1] == DIR_SEPARATOR) | |
2590 | sysroot_no_trailing_dir_separator[sysroot_len - 1] = '\0'; | |
2591 | ||
4ea70922 | 2592 | if (target_sysroot_suffix) |
ce0fdb91 | 2593 | prefix = concat (sysroot_no_trailing_dir_separator, |
2594 | target_sysroot_suffix, prefix, NULL); | |
2595 | else | |
2596 | prefix = concat (sysroot_no_trailing_dir_separator, prefix, NULL); | |
2597 | ||
c5698d9f | 2598 | free (sysroot_no_trailing_dir_separator); |
4ea70922 | 2599 | |
805e22b2 | 2600 | /* We have to override this because GCC's notion of sysroot |
2601 | moves along with GCC. */ | |
2602 | component = "GCC"; | |
2603 | } | |
2604 | ||
2605 | add_prefix (pprefix, prefix, component, priority, | |
2af84186 | 2606 | require_machine_suffix, os_multilib); |
805e22b2 | 2607 | } |
d7a9644e | 2608 | \f |
2609 | /* Execute the command specified by the arguments on the current line of spec. | |
2610 | When using pipes, this includes several piped-together commands | |
2611 | with `|' between them. | |
2612 | ||
2613 | Return 0 if successful, -1 if failed. */ | |
2614 | ||
2615 | static int | |
952f0048 | 2616 | execute (void) |
d7a9644e | 2617 | { |
2618 | int i; | |
2619 | int n_commands; /* # of command. */ | |
2620 | char *string; | |
288e5bba | 2621 | struct pex_obj *pex; |
d7a9644e | 2622 | struct command |
026f2c7a | 2623 | { |
2624 | const char *prog; /* program name. */ | |
2625 | const char **argv; /* vector of args. */ | |
026f2c7a | 2626 | }; |
9d9edc85 | 2627 | const char *arg; |
d7a9644e | 2628 | |
2629 | struct command *commands; /* each command buffer with above info. */ | |
2630 | ||
5e8f3c31 | 2631 | gcc_assert (!processing_spec_function); |
c21b3276 | 2632 | |
0bfd146e | 2633 | if (wrapper_string) |
2634 | { | |
9d9edc85 | 2635 | string = find_a_file (&exec_prefixes, |
f1f41a6c | 2636 | argbuf[0], X_OK, false); |
9d9edc85 | 2637 | if (string) |
f1f41a6c | 2638 | argbuf[0] = string; |
0bfd146e | 2639 | insert_wrapper (wrapper_string); |
2640 | } | |
2641 | ||
d7a9644e | 2642 | /* Count # of piped commands. */ |
f1f41a6c | 2643 | for (n_commands = 1, i = 0; argbuf.iterate (i, &arg); i++) |
9d9edc85 | 2644 | if (strcmp (arg, "|") == 0) |
d7a9644e | 2645 | n_commands++; |
2646 | ||
2647 | /* Get storage for each command. */ | |
25a1c410 | 2648 | commands = (struct command *) alloca (n_commands * sizeof (struct command)); |
d7a9644e | 2649 | |
2650 | /* Split argbuf into its separate piped processes, | |
2651 | and record info about each one. | |
2652 | Also search for the programs that are to be run. */ | |
2653 | ||
f1f41a6c | 2654 | argbuf.safe_push (0); |
9d9edc85 | 2655 | |
f1f41a6c | 2656 | commands[0].prog = argbuf[0]; /* first command. */ |
2657 | commands[0].argv = argbuf.address (); | |
48e1416a | 2658 | |
0bfd146e | 2659 | if (!wrapper_string) |
2660 | { | |
2661 | string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, false); | |
2662 | commands[0].argv[0] = (string) ? string : commands[0].argv[0]; | |
2663 | } | |
d7a9644e | 2664 | |
f1f41a6c | 2665 | for (n_commands = 1, i = 0; argbuf.iterate (i, &arg); i++) |
9d9edc85 | 2666 | if (arg && strcmp (arg, "|") == 0) |
d7a9644e | 2667 | { /* each command. */ |
35151e7a | 2668 | #if defined (__MSDOS__) || defined (OS2) || defined (VMS) |
a922df2e | 2669 | fatal_error ("-pipe not supported"); |
d7a9644e | 2670 | #endif |
f1f41a6c | 2671 | argbuf[i] = 0; /* Termination of |
9d9edc85 | 2672 | command args. */ |
f1f41a6c | 2673 | commands[n_commands].prog = argbuf[i + 1]; |
9d9edc85 | 2674 | commands[n_commands].argv |
f1f41a6c | 2675 | = &(argbuf.address ())[i + 1]; |
c954ff02 | 2676 | string = find_a_file (&exec_prefixes, commands[n_commands].prog, |
067277c3 | 2677 | X_OK, false); |
d7a9644e | 2678 | if (string) |
2679 | commands[n_commands].argv[0] = string; | |
2680 | n_commands++; | |
2681 | } | |
2682 | ||
d7a9644e | 2683 | /* If -v, print what we are about to do, and maybe query. */ |
2684 | ||
8894538a | 2685 | if (verbose_flag) |
d7a9644e | 2686 | { |
8ace789a | 2687 | /* For help listings, put a blank line between sub-processes. */ |
2688 | if (print_help_list) | |
2689 | fputc ('\n', stderr); | |
2c815aff | 2690 | |
d7a9644e | 2691 | /* Print each piped command as a separate line. */ |
026f2c7a | 2692 | for (i = 0; i < n_commands; i++) |
d7a9644e | 2693 | { |
826f6505 | 2694 | const char *const *j; |
d7a9644e | 2695 | |
3cfec666 | 2696 | if (verbose_only_flag) |
2697 | { | |
74e4079a | 2698 | for (j = commands[i].argv; *j; j++) |
2699 | { | |
7cc1628d | 2700 | const char *p; |
74e4079a | 2701 | for (p = *j; *p; ++p) |
663e8646 | 2702 | if (!ISALNUM ((unsigned char) *p) |
2703 | && *p != '_' && *p != '/' && *p != '-' && *p != '.') | |
2704 | break; | |
2705 | if (*p || !*j) | |
74e4079a | 2706 | { |
663e8646 | 2707 | fprintf (stderr, " \""); |
2708 | for (p = *j; *p; ++p) | |
2709 | { | |
2710 | if (*p == '"' || *p == '\\' || *p == '$') | |
2711 | fputc ('\\', stderr); | |
2712 | fputc (*p, stderr); | |
2713 | } | |
2714 | fputc ('"', stderr); | |
74e4079a | 2715 | } |
fde5bd5c | 2716 | /* If it's empty, print "". */ |
2717 | else if (!**j) | |
2718 | fprintf (stderr, " \"\""); | |
663e8646 | 2719 | else |
2720 | fprintf (stderr, " %s", *j); | |
74e4079a | 2721 | } |
3cfec666 | 2722 | } |
2723 | else | |
74e4079a | 2724 | for (j = commands[i].argv; *j; j++) |
fde5bd5c | 2725 | /* If it's empty, print "". */ |
2726 | if (!**j) | |
2727 | fprintf (stderr, " \"\""); | |
2728 | else | |
2729 | fprintf (stderr, " %s", *j); | |
d7a9644e | 2730 | |
2731 | /* Print a pipe symbol after all but the last command. */ | |
2732 | if (i + 1 != n_commands) | |
2733 | fprintf (stderr, " |"); | |
2734 | fprintf (stderr, "\n"); | |
2735 | } | |
2736 | fflush (stderr); | |
74e4079a | 2737 | if (verbose_only_flag != 0) |
0f709d72 | 2738 | { |
2739 | /* verbose_only_flag should act as if the spec was | |
2740 | executed, so increment execution_count before | |
c7bf1374 | 2741 | returning. This prevents spurious warnings about |
0f709d72 | 2742 | unused linker input files, etc. */ |
2743 | execution_count++; | |
2744 | return 0; | |
2745 | } | |
d7a9644e | 2746 | #ifdef DEBUG |
a922df2e | 2747 | fnotice (stderr, "\nGo ahead? (y or n) "); |
d7a9644e | 2748 | fflush (stderr); |
2749 | i = getchar (); | |
2750 | if (i != '\n') | |
0dbd1c74 | 2751 | while (getchar () != '\n') |
2752 | ; | |
2753 | ||
d7a9644e | 2754 | if (i != 'y' && i != 'Y') |
2755 | return 0; | |
2756 | #endif /* DEBUG */ | |
2757 | } | |
2758 | ||
0fa54ff1 | 2759 | #ifdef ENABLE_VALGRIND_CHECKING |
98667efb | 2760 | /* Run the each command through valgrind. To simplify prepending the |
0fa54ff1 | 2761 | path to valgrind and the option "-q" (for quiet operation unless |
2762 | something triggers), we allocate a separate argv array. */ | |
2763 | ||
2764 | for (i = 0; i < n_commands; i++) | |
2765 | { | |
2766 | const char **argv; | |
2767 | int argc; | |
2768 | int j; | |
2769 | ||
2770 | for (argc = 0; commands[i].argv[argc] != NULL; argc++) | |
2771 | ; | |
2772 | ||
561c1db5 | 2773 | argv = XALLOCAVEC (const char *, argc + 3); |
0fa54ff1 | 2774 | |
2775 | argv[0] = VALGRIND_PATH; | |
2776 | argv[1] = "-q"; | |
2777 | for (j = 2; j < argc + 2; j++) | |
2778 | argv[j] = commands[i].argv[j - 2]; | |
2779 | argv[j] = NULL; | |
2780 | ||
2781 | commands[i].argv = argv; | |
2782 | commands[i].prog = argv[0]; | |
2783 | } | |
2784 | #endif | |
2785 | ||
d7a9644e | 2786 | /* Run each piped subprocess. */ |
2787 | ||
4537c5d9 | 2788 | pex = pex_init (PEX_USE_PIPES | ((report_times || report_times_to_file) |
2789 | ? PEX_RECORD_TIMES : 0), | |
460b8bb3 | 2790 | progname, temp_filename); |
288e5bba | 2791 | if (pex == NULL) |
a8c464ac | 2792 | fatal_error ("pex_init failed: %m"); |
288e5bba | 2793 | |
d7a9644e | 2794 | for (i = 0; i < n_commands; i++) |
2795 | { | |
288e5bba | 2796 | const char *errmsg; |
2797 | int err; | |
2508fdc3 | 2798 | const char *string = commands[i].argv[0]; |
d7a9644e | 2799 | |
288e5bba | 2800 | errmsg = pex_run (pex, |
2801 | ((i + 1 == n_commands ? PEX_LAST : 0) | |
2802 | | (string == commands[i].prog ? PEX_SEARCH : 0)), | |
e47a6f81 | 2803 | string, CONST_CAST (char **, commands[i].argv), |
288e5bba | 2804 | NULL, NULL, &err); |
2805 | if (errmsg != NULL) | |
2806 | { | |
2807 | if (err == 0) | |
a922df2e | 2808 | fatal_error (errmsg); |
288e5bba | 2809 | else |
2810 | { | |
2811 | errno = err; | |
2812 | pfatal_with_name (errmsg); | |
2813 | } | |
2814 | } | |
d7a9644e | 2815 | |
2816 | if (string != commands[i].prog) | |
e47a6f81 | 2817 | free (CONST_CAST (char *, string)); |
d7a9644e | 2818 | } |
2819 | ||
2820 | execution_count++; | |
2821 | ||
288e5bba | 2822 | /* Wait for all the subprocesses to finish. */ |
d7a9644e | 2823 | |
2824 | { | |
288e5bba | 2825 | int *statuses; |
2826 | struct pex_time *times = NULL; | |
d7a9644e | 2827 | int ret_code = 0; |
2828 | ||
25a1c410 | 2829 | statuses = (int *) alloca (n_commands * sizeof (int)); |
288e5bba | 2830 | if (!pex_get_status (pex, n_commands, statuses)) |
a8c464ac | 2831 | fatal_error ("failed to get exit status: %m"); |
288e5bba | 2832 | |
4537c5d9 | 2833 | if (report_times || report_times_to_file) |
d7a9644e | 2834 | { |
25a1c410 | 2835 | times = (struct pex_time *) alloca (n_commands * sizeof (struct pex_time)); |
288e5bba | 2836 | if (!pex_get_times (pex, n_commands, times)) |
a8c464ac | 2837 | fatal_error ("failed to get process times: %m"); |
288e5bba | 2838 | } |
d7a9644e | 2839 | |
288e5bba | 2840 | pex_free (pex); |
d7a9644e | 2841 | |
288e5bba | 2842 | for (i = 0; i < n_commands; ++i) |
2843 | { | |
2844 | int status = statuses[i]; | |
a876e5f8 | 2845 | |
288e5bba | 2846 | if (WIFSIGNALED (status)) |
2847 | { | |
4ed34b76 | 2848 | #ifdef SIGPIPE |
288e5bba | 2849 | /* SIGPIPE is a special case. It happens in -pipe mode |
2850 | when the compiler dies before the preprocessor is done, | |
2851 | or the assembler dies before the compiler is done. | |
2852 | There's generally been an error already, and this is | |
2853 | just fallout. So don't generate another error unless | |
2854 | we would otherwise have succeeded. */ | |
2855 | if (WTERMSIG (status) == SIGPIPE | |
2856 | && (signal_count || greatest_status >= MIN_FATAL_STATUS)) | |
d4523b3e | 2857 | { |
2858 | signal_count++; | |
2859 | ret_code = -1; | |
2860 | } | |
288e5bba | 2861 | else |
2862 | #endif | |
460b8bb3 | 2863 | internal_error ("%s (program %s)", |
2864 | strsignal (WTERMSIG (status)), commands[i].prog); | |
288e5bba | 2865 | } |
2866 | else if (WIFEXITED (status) | |
2867 | && WEXITSTATUS (status) >= MIN_FATAL_STATUS) | |
2868 | { | |
2869 | if (WEXITSTATUS (status) > greatest_status) | |
2870 | greatest_status = WEXITSTATUS (status); | |
2871 | ret_code = -1; | |
2872 | } | |
2873 | ||
4537c5d9 | 2874 | if (report_times || report_times_to_file) |
288e5bba | 2875 | { |
2876 | struct pex_time *pt = ×[i]; | |
2877 | double ut, st; | |
2878 | ||
2879 | ut = ((double) pt->user_seconds | |
2880 | + (double) pt->user_microseconds / 1.0e6); | |
2881 | st = ((double) pt->system_seconds | |
2882 | + (double) pt->system_microseconds / 1.0e6); | |
2883 | ||
2884 | if (ut + st != 0) | |
4537c5d9 | 2885 | { |
2886 | if (report_times) | |
a922df2e | 2887 | fnotice (stderr, "# %s %.2f %.2f\n", |
2888 | commands[i].prog, ut, st); | |
4537c5d9 | 2889 | |
2890 | if (report_times_to_file) | |
2891 | { | |
2892 | int c = 0; | |
2893 | const char *const *j; | |
2894 | ||
2895 | fprintf (report_times_to_file, "%g %g", ut, st); | |
2896 | ||
2897 | for (j = &commands[i].prog; *j; j = &commands[i].argv[++c]) | |
2898 | { | |
2899 | const char *p; | |
2900 | for (p = *j; *p; ++p) | |
2901 | if (*p == '"' || *p == '\\' || *p == '$' | |
2902 | || ISSPACE (*p)) | |
2903 | break; | |
2904 | ||
2905 | if (*p) | |
2906 | { | |
2907 | fprintf (report_times_to_file, " \""); | |
2908 | for (p = *j; *p; ++p) | |
2909 | { | |
2910 | if (*p == '"' || *p == '\\' || *p == '$') | |
2911 | fputc ('\\', report_times_to_file); | |
2912 | fputc (*p, report_times_to_file); | |
2913 | } | |
2914 | fputc ('"', report_times_to_file); | |
2915 | } | |
2916 | else | |
2917 | fprintf (report_times_to_file, " %s", *j); | |
2918 | } | |
2919 | ||
2920 | fputc ('\n', report_times_to_file); | |
2921 | } | |
2922 | } | |
288e5bba | 2923 | } |
d7a9644e | 2924 | } |
288e5bba | 2925 | |
d7a9644e | 2926 | return ret_code; |
2927 | } | |
2928 | } | |
2929 | \f | |
2930 | /* Find all the switches given to us | |
2931 | and make a vector describing them. | |
2932 | The elements of the vector are strings, one per switch given. | |
2933 | If a switch uses following arguments, then the `part1' field | |
2934 | is the switch itself and the `args' field | |
2935 | is a null-terminated vector containing the following arguments. | |
79d52444 | 2936 | Bits in the `live_cond' field are: |
2937 | SWITCH_LIVE to indicate this switch is true in a conditional spec. | |
2938 | SWITCH_FALSE to indicate this switch is overridden by a later switch. | |
2939 | SWITCH_IGNORE to indicate this switch should be ignored (used in %<S). | |
87a6a1b5 | 2940 | SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored |
2941 | in all do_spec calls afterwards. Used for %<S from self specs. | |
be2828ce | 2942 | The `validated' field is nonzero if any spec has looked at this switch; |
d7a9644e | 2943 | if it remains zero at the end of the run, it must be meaningless. */ |
2944 | ||
5c1421d7 | 2945 | #define SWITCH_LIVE (1 << 0) |
2946 | #define SWITCH_FALSE (1 << 1) | |
2947 | #define SWITCH_IGNORE (1 << 2) | |
2948 | #define SWITCH_IGNORE_PERMANENTLY (1 << 3) | |
2949 | #define SWITCH_KEEP_FOR_GCC (1 << 4) | |
4a10d696 | 2950 | |
d7a9644e | 2951 | struct switchstr |
2952 | { | |
e40d43cc | 2953 | const char *part1; |
2508fdc3 | 2954 | const char **args; |
79d52444 | 2955 | unsigned int live_cond; |
556cfe53 | 2956 | bool known; |
2957 | bool validated; | |
2958 | bool ordering; | |
d7a9644e | 2959 | }; |
2960 | ||
2961 | static struct switchstr *switches; | |
2962 | ||
2963 | static int n_switches; | |
2964 | ||
bd338b2c | 2965 | static int n_switches_alloc; |
2966 | ||
71278019 | 2967 | /* Set to zero if -fcompare-debug is disabled, positive if it's |
2968 | enabled and we're running the first compilation, negative if it's | |
2969 | enabled and we're running the second compilation. For most of the | |
2970 | time, it's in the range -1..1, but it can be temporarily set to 2 | |
2971 | or 3 to indicate that the -fcompare-debug flags didn't come from | |
2972 | the command-line, but rather from the GCC_COMPARE_DEBUG environment | |
2973 | variable, until a synthesized -fcompare-debug flag is added to the | |
2974 | command line. */ | |
2975 | int compare_debug; | |
2976 | ||
2977 | /* Set to nonzero if we've seen the -fcompare-debug-second flag. */ | |
2978 | int compare_debug_second; | |
2979 | ||
2980 | /* Set to the flags that should be passed to the second compilation in | |
2981 | a -fcompare-debug compilation. */ | |
2982 | const char *compare_debug_opt; | |
2983 | ||
2984 | static struct switchstr *switches_debug_check[2]; | |
2985 | ||
2986 | static int n_switches_debug_check[2]; | |
2987 | ||
4ff887c5 | 2988 | static int n_switches_alloc_debug_check[2]; |
2989 | ||
71278019 | 2990 | static char *debug_check_temp_file[2]; |
2991 | ||
fbf54d9a | 2992 | /* Language is one of three things: |
2993 | ||
2994 | 1) The name of a real programming language. | |
2995 | 2) NULL, indicating that no one has figured out | |
2996 | what it is yet. | |
2997 | 3) '*', indicating that the file should be passed | |
2998 | to the linker. */ | |
d7a9644e | 2999 | struct infile |
3000 | { | |
e40d43cc | 3001 | const char *name; |
3002 | const char *language; | |
dc1dd09b | 3003 | struct compiler *incompiler; |
3004 | bool compiled; | |
3005 | bool preprocessed; | |
d7a9644e | 3006 | }; |
3007 | ||
3008 | /* Also a vector of input files specified. */ | |
3009 | ||
3010 | static struct infile *infiles; | |
3011 | ||
943bf3c7 | 3012 | int n_infiles; |
d7a9644e | 3013 | |
bd338b2c | 3014 | static int n_infiles_alloc; |
3015 | ||
40109983 | 3016 | /* True if multiple input files are being compiled to a single |
3017 | assembly file. */ | |
3018 | ||
3019 | static bool combine_inputs; | |
3020 | ||
cdf76fe2 | 3021 | /* This counts the number of libraries added by lang_specific_driver, so that |
9e56255a | 3022 | we can tell if there were any user supplied any files or libraries. */ |
3023 | ||
3024 | static int added_libraries; | |
3025 | ||
d7a9644e | 3026 | /* And a vector of corresponding output files is made up later. */ |
3027 | ||
943bf3c7 | 3028 | const char **outfiles; |
2e58e75e | 3029 | \f |
10f57222 | 3030 | #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX) |
2e58e75e | 3031 | |
3032 | /* Convert NAME to a new name if it is the standard suffix. DO_EXE | |
c5025ad6 | 3033 | is true if we should look for an executable suffix. DO_OBJ |
3034 | is true if we should look for an object suffix. */ | |
2e58e75e | 3035 | |
7e6b5e54 | 3036 | static const char * |
952f0048 | 3037 | convert_filename (const char *name, int do_exe ATTRIBUTE_UNUSED, |
3038 | int do_obj ATTRIBUTE_UNUSED) | |
2e58e75e | 3039 | { |
7e6b5e54 | 3040 | #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) |
2e58e75e | 3041 | int i; |
7e6b5e54 | 3042 | #endif |
2e3ecf64 | 3043 | int len; |
3044 | ||
3045 | if (name == NULL) | |
3046 | return NULL; | |
2c815aff | 3047 | |
2e3ecf64 | 3048 | len = strlen (name); |
2e58e75e | 3049 | |
10f57222 | 3050 | #ifdef HAVE_TARGET_OBJECT_SUFFIX |
3051 | /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */ | |
c5025ad6 | 3052 | if (do_obj && len > 2 |
2e58e75e | 3053 | && name[len - 2] == '.' |
3054 | && name[len - 1] == 'o') | |
3055 | { | |
7c8c3232 | 3056 | obstack_grow (&obstack, name, len - 2); |
10f57222 | 3057 | obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX)); |
4fac984f | 3058 | name = XOBFINISH (&obstack, const char *); |
2e58e75e | 3059 | } |
3060 | #endif | |
3061 | ||
10f57222 | 3062 | #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) |
2e58e75e | 3063 | /* If there is no filetype, make it the executable suffix (which includes |
3064 | the "."). But don't get confused if we have just "-o". */ | |
10f57222 | 3065 | if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-')) |
2e58e75e | 3066 | return name; |
3067 | ||
dea8dca4 | 3068 | for (i = len - 1; i >= 0; i--) |
79b23a1e | 3069 | if (IS_DIR_SEPARATOR (name[i])) |
dea8dca4 | 3070 | break; |
3071 | ||
3072 | for (i++; i < len; i++) | |
2e58e75e | 3073 | if (name[i] == '.') |
3074 | return name; | |
3075 | ||
3076 | obstack_grow (&obstack, name, len); | |
ee866761 | 3077 | obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX, |
3078 | strlen (TARGET_EXECUTABLE_SUFFIX)); | |
4fac984f | 3079 | name = XOBFINISH (&obstack, const char *); |
2e58e75e | 3080 | #endif |
3081 | ||
3082 | return name; | |
3083 | } | |
3084 | #endif | |
8ace789a | 3085 | \f |
3086 | /* Display the command line switches accepted by gcc. */ | |
3087 | static void | |
952f0048 | 3088 | display_help (void) |
8ace789a | 3089 | { |
460b8bb3 | 3090 | printf (_("Usage: %s [options] file...\n"), progname); |
a4db0a1d | 3091 | fputs (_("Options:\n"), stdout); |
8ace789a | 3092 | |
a4db0a1d | 3093 | fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout); |
3094 | fputs (_(" --help Display this information\n"), stdout); | |
7a6882ca | 3095 | fputs (_(" --target-help Display target specific command line options\n"), stdout); |
042a76cf | 3096 | fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...]\n"), stdout); |
87c75316 | 3097 | fputs (_(" Display specific types of command line options\n"), stdout); |
8ace789a | 3098 | if (! verbose_flag) |
a4db0a1d | 3099 | fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout); |
53f9a00b | 3100 | fputs (_(" --version Display compiler version information\n"), stdout); |
a4db0a1d | 3101 | fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout); |
3102 | fputs (_(" -dumpversion Display the version of the compiler\n"), stdout); | |
3103 | fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout); | |
3104 | fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout); | |
3105 | fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout); | |
3106 | fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout); | |
3107 | fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout); | |
77adc39e | 3108 | fputs (_("\ |
3109 | -print-multiarch Display the target's normalized GNU triplet, used as\n\ | |
3110 | a component in the library path\n"), stdout); | |
a4db0a1d | 3111 | fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout); |
3112 | fputs (_("\ | |
3113 | -print-multi-lib Display the mapping between command line options and\n\ | |
3114 | multiple library search directories\n"), stdout); | |
c954ff02 | 3115 | fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout); |
098cc23f | 3116 | fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout); |
6ea4242f | 3117 | fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout); |
a4db0a1d | 3118 | fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout); |
3119 | fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout); | |
3120 | fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout); | |
805e22b2 | 3121 | fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout); |
3122 | fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout); | |
a4db0a1d | 3123 | fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout); |
3124 | fputs (_(" -save-temps Do not delete intermediate files\n"), stdout); | |
cc92bc82 | 3125 | fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout); |
d05a1771 | 3126 | fputs (_("\ |
3127 | -no-canonical-prefixes Do not canonicalize paths when building relative\n\ | |
3128 | prefixes to other gcc components\n"), stdout); | |
a4db0a1d | 3129 | fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout); |
3130 | fputs (_(" -time Time the execution of each subprocess\n"), stdout); | |
f4ec69cb | 3131 | fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout); |
a4db0a1d | 3132 | fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout); |
a99be165 | 3133 | fputs (_("\ |
3134 | --sysroot=<directory> Use <directory> as the root directory for headers\n\ | |
6702edc2 | 3135 | and libraries\n"), stdout); |
a4db0a1d | 3136 | fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout); |
a4db0a1d | 3137 | fputs (_(" -v Display the programs invoked by the compiler\n"), stdout); |
74e4079a | 3138 | fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout); |
a4db0a1d | 3139 | fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout); |
3140 | fputs (_(" -S Compile only; do not assemble or link\n"), stdout); | |
3141 | fputs (_(" -c Compile and assemble, but do not link\n"), stdout); | |
3142 | fputs (_(" -o <file> Place the output into <file>\n"), stdout); | |
1412b935 | 3143 | fputs (_(" -pie Create a position independent executable\n"), stdout); |
3144 | fputs (_(" -shared Create a shared library\n"), stdout); | |
a4db0a1d | 3145 | fputs (_("\ |
3146 | -x <language> Specify the language of the following input files\n\ | |
6122f188 | 3147 | Permissible languages include: c c++ assembler none\n\ |
1d8c4563 | 3148 | 'none' means revert to the default behavior of\n\ |
a4db0a1d | 3149 | guessing the language based on the file's extension\n\ |
3150 | "), stdout); | |
3151 | ||
60933322 | 3152 | printf (_("\ |
833a5c07 | 3153 | \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\ |
3154 | passed on to the various sub-processes invoked by %s. In order to pass\n\ | |
3155 | other options on to these processes the -W<letter> options must be used.\n\ | |
460b8bb3 | 3156 | "), progname); |
8ace789a | 3157 | |
3158 | /* The rest of the options are displayed by invocations of the various | |
3159 | sub-processes. */ | |
3160 | } | |
3161 | ||
2c815aff | 3162 | static void |
952f0048 | 3163 | add_preprocessor_option (const char *option, int len) |
2c815aff | 3164 | { |
f1f41a6c | 3165 | preprocessor_options.safe_push (save_string (option, len)); |
9a109943 | 3166 | } |
2c815aff | 3167 | |
3168 | static void | |
952f0048 | 3169 | add_assembler_option (const char *option, int len) |
e40d43cc | 3170 | { |
f1f41a6c | 3171 | assembler_options.safe_push (save_string (option, len)); |
8ace789a | 3172 | } |
2c815aff | 3173 | |
3174 | static void | |
952f0048 | 3175 | add_linker_option (const char *option, int len) |
e40d43cc | 3176 | { |
f1f41a6c | 3177 | linker_options.safe_push (save_string (option, len)); |
9a109943 | 3178 | } |
2e58e75e | 3179 | \f |
bd338b2c | 3180 | /* Allocate space for an input file in infiles. */ |
3181 | ||
3182 | static void | |
3183 | alloc_infile (void) | |
3184 | { | |
3185 | if (n_infiles_alloc == 0) | |
3186 | { | |
3187 | n_infiles_alloc = 16; | |
3188 | infiles = XNEWVEC (struct infile, n_infiles_alloc); | |
3189 | } | |
3190 | else if (n_infiles_alloc == n_infiles) | |
3191 | { | |
3192 | n_infiles_alloc *= 2; | |
3193 | infiles = XRESIZEVEC (struct infile, infiles, n_infiles_alloc); | |
3194 | } | |
3195 | } | |
3196 | ||
3197 | /* Store an input file with the given NAME and LANGUAGE in | |
3198 | infiles. */ | |
3199 | ||
3200 | static void | |
3201 | add_infile (const char *name, const char *language) | |
3202 | { | |
3203 | alloc_infile (); | |
3204 | infiles[n_infiles].name = name; | |
3205 | infiles[n_infiles++].language = language; | |
3206 | } | |
3207 | ||
3208 | /* Allocate space for a switch in switches. */ | |
3209 | ||
3210 | static void | |
3211 | alloc_switch (void) | |
3212 | { | |
3213 | if (n_switches_alloc == 0) | |
3214 | { | |
3215 | n_switches_alloc = 16; | |
3216 | switches = XNEWVEC (struct switchstr, n_switches_alloc); | |
3217 | } | |
3218 | else if (n_switches_alloc == n_switches) | |
3219 | { | |
3220 | n_switches_alloc *= 2; | |
3221 | switches = XRESIZEVEC (struct switchstr, switches, n_switches_alloc); | |
3222 | } | |
3223 | } | |
3224 | ||
e28aa114 | 3225 | /* Save an option OPT with N_ARGS arguments in array ARGS, marking it |
556cfe53 | 3226 | as validated if VALIDATED and KNOWN if it is an internal switch. */ |
e28aa114 | 3227 | |
3228 | static void | |
3229 | save_switch (const char *opt, size_t n_args, const char *const *args, | |
556cfe53 | 3230 | bool validated, bool known) |
e28aa114 | 3231 | { |
3232 | alloc_switch (); | |
3233 | switches[n_switches].part1 = opt + 1; | |
3234 | if (n_args == 0) | |
3235 | switches[n_switches].args = 0; | |
3236 | else | |
3237 | { | |
3238 | switches[n_switches].args = XNEWVEC (const char *, n_args + 1); | |
3239 | memcpy (switches[n_switches].args, args, n_args * sizeof (const char *)); | |
3240 | switches[n_switches].args[n_args] = NULL; | |
3241 | } | |
3242 | ||
3243 | switches[n_switches].live_cond = 0; | |
3244 | switches[n_switches].validated = validated; | |
556cfe53 | 3245 | switches[n_switches].known = known; |
e28aa114 | 3246 | switches[n_switches].ordering = 0; |
3247 | n_switches++; | |
3248 | } | |
3249 | ||
3250 | /* Handle an option DECODED that is unknown to the option-processing | |
a4e747a2 | 3251 | machinery. */ |
e28aa114 | 3252 | |
3253 | static bool | |
3254 | driver_unknown_option_callback (const struct cl_decoded_option *decoded) | |
3255 | { | |
a4e747a2 | 3256 | const char *opt = decoded->arg; |
3257 | if (opt[1] == 'W' && opt[2] == 'n' && opt[3] == 'o' && opt[4] == '-' | |
3258 | && !(decoded->errors & CL_ERR_NEGATIVE)) | |
3259 | { | |
3260 | /* Leave unknown -Wno-* options for the compiler proper, to be | |
3261 | diagnosed only if there are warnings. */ | |
3262 | save_switch (decoded->canonical_option[0], | |
3263 | decoded->canonical_option_num_elements - 1, | |
556cfe53 | 3264 | &decoded->canonical_option[1], false, true); |
3265 | return false; | |
3266 | } | |
3267 | if (decoded->opt_index == OPT_SPECIAL_unknown) | |
3268 | { | |
3269 | /* Give it a chance to define it a a spec file. */ | |
3270 | save_switch (decoded->canonical_option[0], | |
3271 | decoded->canonical_option_num_elements - 1, | |
3272 | &decoded->canonical_option[1], false, false); | |
a4e747a2 | 3273 | return false; |
3274 | } | |
3275 | else | |
3276 | return true; | |
e28aa114 | 3277 | } |
3278 | ||
3279 | /* Handle an option DECODED that is not marked as CL_DRIVER. | |
3280 | LANG_MASK will always be CL_DRIVER. */ | |
3281 | ||
3282 | static void | |
3283 | driver_wrong_lang_callback (const struct cl_decoded_option *decoded, | |
3284 | unsigned int lang_mask ATTRIBUTE_UNUSED) | |
3285 | { | |
3286 | /* At this point, non-driver options are accepted (and expected to | |
3287 | be passed down by specs) unless marked to be rejected by the | |
3288 | driver. Options to be rejected by the driver but accepted by the | |
3289 | compilers proper are treated just like completely unknown | |
3290 | options. */ | |
3291 | const struct cl_option *option = &cl_options[decoded->opt_index]; | |
3292 | ||
ec840af4 | 3293 | if (option->cl_reject_driver) |
e28aa114 | 3294 | error ("unrecognized command line option %qs", |
3295 | decoded->orig_option_with_args_text); | |
3296 | else | |
a4e747a2 | 3297 | save_switch (decoded->canonical_option[0], |
3298 | decoded->canonical_option_num_elements - 1, | |
556cfe53 | 3299 | &decoded->canonical_option[1], false, true); |
e28aa114 | 3300 | } |
3301 | ||
e28aa114 | 3302 | static const char *spec_lang = 0; |
3303 | static int last_language_n_infiles; | |
3304 | ||
3305 | /* Handle a driver option; arguments and return value as for | |
3306 | handle_option. */ | |
3307 | ||
3308 | static bool | |
2c5d2e39 | 3309 | driver_handle_option (struct gcc_options *opts, |
f83b64ca | 3310 | struct gcc_options *opts_set, |
2c5d2e39 | 3311 | const struct cl_decoded_option *decoded, |
e28aa114 | 3312 | unsigned int lang_mask ATTRIBUTE_UNUSED, int kind, |
3c6c0e40 | 3313 | location_t loc, |
6bd9d862 | 3314 | const struct cl_option_handlers *handlers ATTRIBUTE_UNUSED, |
3315 | diagnostic_context *dc) | |
e28aa114 | 3316 | { |
3317 | size_t opt_index = decoded->opt_index; | |
3318 | const char *arg = decoded->arg; | |
3319 | const char *compare_debug_replacement_opt; | |
3320 | int value = decoded->value; | |
3321 | bool validated = false; | |
3322 | bool do_save = true; | |
3323 | ||
2c5d2e39 | 3324 | gcc_assert (opts == &global_options); |
f83b64ca | 3325 | gcc_assert (opts_set == &global_options_set); |
e28aa114 | 3326 | gcc_assert (kind == DK_UNSPECIFIED); |
3c6c0e40 | 3327 | gcc_assert (loc == UNKNOWN_LOCATION); |
6bd9d862 | 3328 | gcc_assert (dc == global_dc); |
e28aa114 | 3329 | |
3330 | switch (opt_index) | |
3331 | { | |
3332 | case OPT_dumpspecs: | |
3333 | { | |
3334 | struct spec_list *sl; | |
3335 | init_spec (); | |
3336 | for (sl = specs; sl; sl = sl->next) | |
3337 | printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec)); | |
3338 | if (link_command_spec) | |
3339 | printf ("*link_command:\n%s\n\n", link_command_spec); | |
3340 | exit (0); | |
3341 | } | |
3342 | ||
3343 | case OPT_dumpversion: | |
3344 | printf ("%s\n", spec_version); | |
3345 | exit (0); | |
3346 | ||
3347 | case OPT_dumpmachine: | |
3348 | printf ("%s\n", spec_machine); | |
3349 | exit (0); | |
3350 | ||
5789e05b | 3351 | case OPT__version: |
e28aa114 | 3352 | print_version = 1; |
3353 | ||
3354 | /* CPP driver cannot obtain switch from cc1_options. */ | |
3355 | if (is_cpp_driver) | |
3356 | add_preprocessor_option ("--version", strlen ("--version")); | |
3357 | add_assembler_option ("--version", strlen ("--version")); | |
3358 | add_linker_option ("--version", strlen ("--version")); | |
3359 | break; | |
3360 | ||
5789e05b | 3361 | case OPT__help: |
e28aa114 | 3362 | print_help_list = 1; |
3363 | ||
3364 | /* CPP driver cannot obtain switch from cc1_options. */ | |
3365 | if (is_cpp_driver) | |
3366 | add_preprocessor_option ("--help", 6); | |
3367 | add_assembler_option ("--help", 6); | |
3368 | add_linker_option ("--help", 6); | |
3369 | break; | |
3370 | ||
5789e05b | 3371 | case OPT__help_: |
e28aa114 | 3372 | print_subprocess_help = 2; |
3373 | break; | |
3374 | ||
5789e05b | 3375 | case OPT__target_help: |
e28aa114 | 3376 | print_subprocess_help = 1; |
3377 | ||
3378 | /* CPP driver cannot obtain switch from cc1_options. */ | |
3379 | if (is_cpp_driver) | |
3380 | add_preprocessor_option ("--target-help", 13); | |
3381 | add_assembler_option ("--target-help", 13); | |
3382 | add_linker_option ("--target-help", 13); | |
3383 | break; | |
3384 | ||
70eb49f5 | 3385 | case OPT__no_sysroot_suffix: |
e28aa114 | 3386 | case OPT_pass_exit_codes: |
3387 | case OPT_print_search_dirs: | |
3388 | case OPT_print_file_name_: | |
3389 | case OPT_print_prog_name_: | |
3390 | case OPT_print_multi_lib: | |
3391 | case OPT_print_multi_directory: | |
3392 | case OPT_print_sysroot: | |
3393 | case OPT_print_multi_os_directory: | |
77adc39e | 3394 | case OPT_print_multiarch: |
e28aa114 | 3395 | case OPT_print_sysroot_headers_suffix: |
3396 | case OPT_time: | |
3397 | case OPT_wrapper: | |
3398 | /* These options set the variables specified in common.opt | |
3399 | automatically, and do not need to be saved for spec | |
3400 | processing. */ | |
3401 | do_save = false; | |
3402 | break; | |
3403 | ||
3404 | case OPT_print_libgcc_file_name: | |
3405 | print_file_name = "libgcc.a"; | |
3406 | do_save = false; | |
3407 | break; | |
3408 | ||
3409 | case OPT_fcompare_debug_second: | |
3410 | compare_debug_second = 1; | |
3411 | break; | |
3412 | ||
3413 | case OPT_fcompare_debug: | |
3414 | switch (value) | |
3415 | { | |
3416 | case 0: | |
3417 | compare_debug_replacement_opt = "-fcompare-debug="; | |
3418 | arg = ""; | |
3419 | goto compare_debug_with_arg; | |
3420 | ||
3421 | case 1: | |
3422 | compare_debug_replacement_opt = "-fcompare-debug=-gtoggle"; | |
3423 | arg = "-gtoggle"; | |
3424 | goto compare_debug_with_arg; | |
3425 | ||
3426 | default: | |
3427 | gcc_unreachable (); | |
3428 | } | |
3429 | break; | |
3430 | ||
3431 | case OPT_fcompare_debug_: | |
3432 | compare_debug_replacement_opt = decoded->canonical_option[0]; | |
3433 | compare_debug_with_arg: | |
3434 | gcc_assert (decoded->canonical_option_num_elements == 1); | |
3435 | gcc_assert (arg != NULL); | |
400b18e7 | 3436 | if (*arg) |
e28aa114 | 3437 | compare_debug = 1; |
3438 | else | |
3439 | compare_debug = -1; | |
3440 | if (compare_debug < 0) | |
3441 | compare_debug_opt = NULL; | |
3442 | else | |
3443 | compare_debug_opt = arg; | |
556cfe53 | 3444 | save_switch (compare_debug_replacement_opt, 0, NULL, validated, true); |
e28aa114 | 3445 | return true; |
3446 | ||
3447 | case OPT_Wa_: | |
3448 | { | |
3449 | int prev, j; | |
3450 | /* Pass the rest of this option to the assembler. */ | |
3451 | ||
3452 | /* Split the argument at commas. */ | |
3453 | prev = 0; | |
3454 | for (j = 0; arg[j]; j++) | |
3455 | if (arg[j] == ',') | |
3456 | { | |
3457 | add_assembler_option (arg + prev, j - prev); | |
3458 | prev = j + 1; | |
3459 | } | |
3460 | ||
3461 | /* Record the part after the last comma. */ | |
3462 | add_assembler_option (arg + prev, j - prev); | |
3463 | } | |
3464 | do_save = false; | |
3465 | break; | |
3466 | ||
3467 | case OPT_Wp_: | |
3468 | { | |
3469 | int prev, j; | |
3470 | /* Pass the rest of this option to the preprocessor. */ | |
3471 | ||
3472 | /* Split the argument at commas. */ | |
3473 | prev = 0; | |
3474 | for (j = 0; arg[j]; j++) | |
3475 | if (arg[j] == ',') | |
3476 | { | |
3477 | add_preprocessor_option (arg + prev, j - prev); | |
3478 | prev = j + 1; | |
3479 | } | |
3480 | ||
3481 | /* Record the part after the last comma. */ | |
3482 | add_preprocessor_option (arg + prev, j - prev); | |
3483 | } | |
3484 | do_save = false; | |
3485 | break; | |
3486 | ||
3487 | case OPT_Wl_: | |
3488 | { | |
3489 | int prev, j; | |
3490 | /* Split the argument at commas. */ | |
3491 | prev = 0; | |
3492 | for (j = 0; arg[j]; j++) | |
3493 | if (arg[j] == ',') | |
3494 | { | |
3495 | add_infile (save_string (arg + prev, j - prev), "*"); | |
3496 | prev = j + 1; | |
3497 | } | |
3498 | /* Record the part after the last comma. */ | |
3499 | add_infile (arg + prev, "*"); | |
3500 | } | |
3501 | do_save = false; | |
3502 | break; | |
3503 | ||
3504 | case OPT_Xlinker: | |
3505 | add_infile (arg, "*"); | |
3506 | do_save = false; | |
3507 | break; | |
3508 | ||
3509 | case OPT_Xpreprocessor: | |
3510 | add_preprocessor_option (arg, strlen (arg)); | |
3511 | do_save = false; | |
3512 | break; | |
3513 | ||
3514 | case OPT_Xassembler: | |
3515 | add_assembler_option (arg, strlen (arg)); | |
3516 | do_save = false; | |
3517 | break; | |
3518 | ||
3519 | case OPT_l: | |
3520 | /* POSIX allows separation of -l and the lib arg; canonicalize | |
3521 | by concatenating -l with its arg */ | |
3522 | add_infile (concat ("-l", arg, NULL), "*"); | |
3523 | do_save = false; | |
3524 | break; | |
3525 | ||
67089c6b | 3526 | case OPT_L: |
3527 | /* Similarly, canonicalize -L for linkers that may not accept | |
3528 | separate arguments. */ | |
556cfe53 | 3529 | save_switch (concat ("-L", arg, NULL), 0, NULL, validated, true); |
67089c6b | 3530 | return true; |
3531 | ||
accf4556 | 3532 | case OPT_F: |
3533 | /* Likewise -F. */ | |
556cfe53 | 3534 | save_switch (concat ("-F", arg, NULL), 0, NULL, validated, true); |
accf4556 | 3535 | return true; |
3536 | ||
e28aa114 | 3537 | case OPT_save_temps: |
3538 | save_temps_flag = SAVE_TEMPS_CWD; | |
3539 | validated = true; | |
3540 | break; | |
3541 | ||
3542 | case OPT_save_temps_: | |
3543 | if (strcmp (arg, "cwd") == 0) | |
3544 | save_temps_flag = SAVE_TEMPS_CWD; | |
3545 | else if (strcmp (arg, "obj") == 0 | |
3546 | || strcmp (arg, "object") == 0) | |
3547 | save_temps_flag = SAVE_TEMPS_OBJ; | |
3548 | else | |
3549 | fatal_error ("%qs is an unknown -save-temps option", | |
3550 | decoded->orig_option_with_args_text); | |
3551 | break; | |
3552 | ||
3553 | case OPT_no_canonical_prefixes: | |
3554 | /* Already handled as a special case, so ignored here. */ | |
3555 | do_save = false; | |
3556 | break; | |
3557 | ||
3558 | case OPT_pipe: | |
3559 | validated = true; | |
e28aa114 | 3560 | /* These options set the variables specified in common.opt |
3561 | automatically, but do need to be saved for spec | |
3562 | processing. */ | |
3563 | break; | |
3564 | ||
e28aa114 | 3565 | case OPT_specs_: |
3566 | { | |
3567 | struct user_specs *user = XNEW (struct user_specs); | |
3568 | ||
3569 | user->next = (struct user_specs *) 0; | |
3570 | user->filename = arg; | |
3571 | if (user_specs_tail) | |
3572 | user_specs_tail->next = user; | |
3573 | else | |
3574 | user_specs_head = user; | |
3575 | user_specs_tail = user; | |
3576 | } | |
556cfe53 | 3577 | validated = true; |
e28aa114 | 3578 | break; |
3579 | ||
3580 | case OPT__sysroot_: | |
3581 | target_system_root = arg; | |
3582 | target_system_root_changed = 1; | |
3583 | do_save = false; | |
3584 | break; | |
3585 | ||
3586 | case OPT_time_: | |
3587 | if (report_times_to_file) | |
3588 | fclose (report_times_to_file); | |
3589 | report_times_to_file = fopen (arg, "a"); | |
3590 | do_save = false; | |
3591 | break; | |
3592 | ||
3593 | case OPT____: | |
3594 | /* "-###" | |
3595 | This is similar to -v except that there is no execution | |
3596 | of the commands and the echoed arguments are quoted. It | |
3597 | is intended for use in shell scripts to capture the | |
3598 | driver-generated command line. */ | |
3599 | verbose_only_flag++; | |
6bd9d862 | 3600 | verbose_flag = 1; |
e28aa114 | 3601 | do_save = false; |
3602 | break; | |
3603 | ||
3604 | case OPT_B: | |
3605 | { | |
3606 | size_t len = strlen (arg); | |
3607 | ||
3608 | /* Catch the case where the user has forgotten to append a | |
3609 | directory separator to the path. Note, they may be using | |
3610 | -B to add an executable name prefix, eg "i386-elf-", in | |
3611 | order to distinguish between multiple installations of | |
3612 | GCC in the same directory. Hence we must check to see | |
3613 | if appending a directory separator actually makes a | |
3614 | valid directory name. */ | |
3615 | if (!IS_DIR_SEPARATOR (arg[len - 1]) | |
3616 | && is_directory (arg, false)) | |
3617 | { | |
3618 | char *tmp = XNEWVEC (char, len + 2); | |
3619 | strcpy (tmp, arg); | |
3620 | tmp[len] = DIR_SEPARATOR; | |
3621 | tmp[++len] = 0; | |
3622 | arg = tmp; | |
3623 | } | |
3624 | ||
3625 | add_prefix (&exec_prefixes, arg, NULL, | |
3626 | PREFIX_PRIORITY_B_OPT, 0, 0); | |
3627 | add_prefix (&startfile_prefixes, arg, NULL, | |
3628 | PREFIX_PRIORITY_B_OPT, 0, 0); | |
3629 | add_prefix (&include_prefixes, arg, NULL, | |
3630 | PREFIX_PRIORITY_B_OPT, 0, 0); | |
3631 | } | |
3632 | validated = true; | |
3633 | break; | |
3634 | ||
e28aa114 | 3635 | case OPT_x: |
3636 | spec_lang = arg; | |
3637 | if (!strcmp (spec_lang, "none")) | |
3638 | /* Suppress the warning if -xnone comes after the last input | |
3639 | file, because alternate command interfaces like g++ might | |
3640 | find it useful to place -xnone after each input file. */ | |
3641 | spec_lang = 0; | |
3642 | else | |
3643 | last_language_n_infiles = n_infiles; | |
3644 | do_save = false; | |
3645 | break; | |
3646 | ||
e28aa114 | 3647 | case OPT_o: |
3648 | have_o = 1; | |
3649 | #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX) | |
3650 | arg = convert_filename (arg, ! have_c, 0); | |
3651 | #endif | |
3652 | /* Save the output name in case -save-temps=obj was used. */ | |
3653 | save_temps_prefix = xstrdup (arg); | |
3654 | /* On some systems, ld cannot handle "-o" without a space. So | |
3655 | split the option from its argument. */ | |
556cfe53 | 3656 | save_switch ("-o", 1, &arg, validated, true); |
e28aa114 | 3657 | return true; |
3658 | ||
3659 | case OPT_static_libgcc: | |
3660 | case OPT_shared_libgcc: | |
3661 | case OPT_static_libgfortran: | |
3662 | case OPT_static_libstdc__: | |
3663 | /* These are always valid, since gcc.c itself understands the | |
3664 | first two, gfortranspec.c understands -static-libgfortran and | |
3665 | g++spec.c understands -static-libstdc++ */ | |
3666 | validated = true; | |
3667 | break; | |
3668 | ||
3669 | default: | |
cb22f930 | 3670 | /* Various driver options need no special processing at this |
3671 | point, having been handled in a prescan above or being | |
3672 | handled by specs. */ | |
3673 | break; | |
e28aa114 | 3674 | } |
3675 | ||
3676 | if (do_save) | |
3677 | save_switch (decoded->canonical_option[0], | |
3678 | decoded->canonical_option_num_elements - 1, | |
556cfe53 | 3679 | &decoded->canonical_option[1], validated, true); |
e28aa114 | 3680 | return true; |
3681 | } | |
3682 | ||
4ff887c5 | 3683 | /* Put the driver's standard set of option handlers in *HANDLERS. */ |
3684 | ||
3685 | static void | |
3686 | set_option_handlers (struct cl_option_handlers *handlers) | |
3687 | { | |
3688 | handlers->unknown_option_callback = driver_unknown_option_callback; | |
3689 | handlers->wrong_lang_callback = driver_wrong_lang_callback; | |
90336809 | 3690 | handlers->num_handlers = 3; |
4ff887c5 | 3691 | handlers->handlers[0].handler = driver_handle_option; |
3692 | handlers->handlers[0].mask = CL_DRIVER; | |
90336809 | 3693 | handlers->handlers[1].handler = common_handle_option; |
3694 | handlers->handlers[1].mask = CL_COMMON; | |
3695 | handlers->handlers[2].handler = target_handle_option; | |
3696 | handlers->handlers[2].mask = CL_TARGET; | |
4ff887c5 | 3697 | } |
3698 | ||
d7a9644e | 3699 | /* Create the vector `switches' and its contents. |
3700 | Store its length in `n_switches'. */ | |
3701 | ||
3702 | static void | |
e62df35b | 3703 | process_command (unsigned int decoded_options_count, |
3704 | struct cl_decoded_option *decoded_options) | |
d7a9644e | 3705 | { |
e40d43cc | 3706 | const char *temp; |
3707 | char *temp1; | |
ce0fdb91 | 3708 | char *tooldir_prefix, *tooldir_prefix2; |
d05a1771 | 3709 | char *(*get_relative_prefix) (const char *, const char *, |
3710 | const char *) = NULL; | |
e28aa114 | 3711 | struct cl_option_handlers handlers; |
e62df35b | 3712 | unsigned int j; |
d7a9644e | 3713 | |
967958e4 | 3714 | gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX"); |
bfef3e2f | 3715 | |
d7a9644e | 3716 | n_switches = 0; |
3717 | n_infiles = 0; | |
9e56255a | 3718 | added_libraries = 0; |
0d3f9dba | 3719 | |
4dd56bd9 | 3720 | /* Figure compiler version from version string. */ |
3721 | ||
2c815aff | 3722 | compiler_version = temp1 = xstrdup (version_string); |
713829e9 | 3723 | |
e40d43cc | 3724 | for (; *temp1; ++temp1) |
4dd56bd9 | 3725 | { |
e40d43cc | 3726 | if (*temp1 == ' ') |
4dd56bd9 | 3727 | { |
e40d43cc | 3728 | *temp1 = '\0'; |
4dd56bd9 | 3729 | break; |
3730 | } | |
3731 | } | |
d7a9644e | 3732 | |
d05a1771 | 3733 | /* Handle any -no-canonical-prefixes flag early, to assign the function |
3734 | that builds relative prefixes. This function creates default search | |
3735 | paths that are needed later in normal option handling. */ | |
3736 | ||
5789e05b | 3737 | for (j = 1; j < decoded_options_count; j++) |
d05a1771 | 3738 | { |
5789e05b | 3739 | if (decoded_options[j].opt_index == OPT_no_canonical_prefixes) |
d05a1771 | 3740 | { |
3741 | get_relative_prefix = make_relative_prefix_ignore_links; | |
3742 | break; | |
3743 | } | |
3744 | } | |
3745 | if (! get_relative_prefix) | |
3746 | get_relative_prefix = make_relative_prefix; | |
3747 | ||
b155ba2f | 3748 | /* Set up the default search paths. If there is no GCC_EXEC_PREFIX, |
e62df35b | 3749 | see if we can create it from the pathname specified in |
3750 | decoded_options[0].arg. */ | |
b155ba2f | 3751 | |
9db45a87 | 3752 | gcc_libexec_prefix = standard_libexec_prefix; |
b155ba2f | 3753 | #ifndef VMS |
3754 | /* FIXME: make_relative_prefix doesn't yet work for VMS. */ | |
3755 | if (!gcc_exec_prefix) | |
3756 | { | |
e62df35b | 3757 | gcc_exec_prefix = get_relative_prefix (decoded_options[0].arg, |
d05a1771 | 3758 | standard_bindir_prefix, |
3759 | standard_exec_prefix); | |
e62df35b | 3760 | gcc_libexec_prefix = get_relative_prefix (decoded_options[0].arg, |
d05a1771 | 3761 | standard_bindir_prefix, |
3762 | standard_libexec_prefix); | |
b155ba2f | 3763 | if (gcc_exec_prefix) |
99c00302 | 3764 | xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL)); |
b155ba2f | 3765 | } |
9db45a87 | 3766 | else |
01b26439 | 3767 | { |
3768 | /* make_relative_prefix requires a program name, but | |
3769 | GCC_EXEC_PREFIX is typically a directory name with a trailing | |
3770 | / (which is ignored by make_relative_prefix), so append a | |
3771 | program name. */ | |
3772 | char *tmp_prefix = concat (gcc_exec_prefix, "gcc", NULL); | |
d05a1771 | 3773 | gcc_libexec_prefix = get_relative_prefix (tmp_prefix, |
3774 | standard_exec_prefix, | |
3775 | standard_libexec_prefix); | |
c4328bcc | 3776 | |
3777 | /* The path is unrelocated, so fallback to the original setting. */ | |
3778 | if (!gcc_libexec_prefix) | |
3779 | gcc_libexec_prefix = standard_libexec_prefix; | |
3780 | ||
01b26439 | 3781 | free (tmp_prefix); |
3782 | } | |
9db45a87 | 3783 | #else |
b155ba2f | 3784 | #endif |
c4328bcc | 3785 | /* From this point onward, gcc_exec_prefix is non-null if the toolchain |
3786 | is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX | |
e62df35b | 3787 | or an automatically created GCC_EXEC_PREFIX from |
3788 | decoded_options[0].arg. */ | |
d7a9644e | 3789 | |
15b28e16 | 3790 | /* Do language-specific adjustment/addition of flags. */ |
cb22f930 | 3791 | lang_specific_driver (&decoded_options, &decoded_options_count, |
15b28e16 | 3792 | &added_libraries); |
3793 | ||
bfef3e2f | 3794 | if (gcc_exec_prefix) |
d7a9644e | 3795 | { |
055237ef | 3796 | int len = strlen (gcc_exec_prefix); |
7d3bd8c0 | 3797 | |
9db45a87 | 3798 | if (len > (int) sizeof ("/lib/gcc/") - 1 |
79b23a1e | 3799 | && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1]))) |
055237ef | 3800 | { |
9db45a87 | 3801 | temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1; |
79b23a1e | 3802 | if (IS_DIR_SEPARATOR (*temp) |
82715bcd | 3803 | && filename_ncmp (temp + 1, "lib", 3) == 0 |
79b23a1e | 3804 | && IS_DIR_SEPARATOR (temp[4]) |
82715bcd | 3805 | && filename_ncmp (temp + 5, "gcc", 3) == 0) |
9db45a87 | 3806 | len -= sizeof ("/lib/gcc/") - 1; |
055237ef | 3807 | } |
3808 | ||
3809 | set_std_prefix (gcc_exec_prefix, len); | |
9db45a87 | 3810 | add_prefix (&exec_prefixes, gcc_libexec_prefix, "GCC", |
2af84186 | 3811 | PREFIX_PRIORITY_LAST, 0, 0); |
acd84059 | 3812 | add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC", |
2af84186 | 3813 | PREFIX_PRIORITY_LAST, 0, 0); |
d7a9644e | 3814 | } |
3815 | ||
3816 | /* COMPILER_PATH and LIBRARY_PATH have values | |
3817 | that are lists of directory names with colons. */ | |
3818 | ||
967958e4 | 3819 | temp = getenv ("COMPILER_PATH"); |
d7a9644e | 3820 | if (temp) |
3821 | { | |
e40d43cc | 3822 | const char *startp, *endp; |
25a1c410 | 3823 | char *nstore = (char *) alloca (strlen (temp) + 3); |
d7a9644e | 3824 | |
3825 | startp = endp = temp; | |
3826 | while (1) | |
3827 | { | |
99b832c9 | 3828 | if (*endp == PATH_SEPARATOR || *endp == 0) |
d7a9644e | 3829 | { |
026f2c7a | 3830 | strncpy (nstore, startp, endp - startp); |
d7a9644e | 3831 | if (endp == startp) |
4e2023c8 | 3832 | strcpy (nstore, concat (".", dir_separator_str, NULL)); |
79b23a1e | 3833 | else if (!IS_DIR_SEPARATOR (endp[-1])) |
d7a9644e | 3834 | { |
026f2c7a | 3835 | nstore[endp - startp] = DIR_SEPARATOR; |
3836 | nstore[endp - startp + 1] = 0; | |
d7a9644e | 3837 | } |
3838 | else | |
026f2c7a | 3839 | nstore[endp - startp] = 0; |
acd84059 | 3840 | add_prefix (&exec_prefixes, nstore, 0, |
2af84186 | 3841 | PREFIX_PRIORITY_LAST, 0, 0); |
42bbc7e6 | 3842 | add_prefix (&include_prefixes, nstore, 0, |
2af84186 | 3843 | PREFIX_PRIORITY_LAST, 0, 0); |
d7a9644e | 3844 | if (*endp == 0) |
3845 | break; | |
3846 | endp = startp = endp + 1; | |
3847 | } | |
3848 | else | |
3849 | endp++; | |
3850 | } | |
3851 | } | |
3852 | ||
967958e4 | 3853 | temp = getenv (LIBRARY_PATH_ENV); |
c6456dcd | 3854 | if (temp && *cross_compile == '0') |
d7a9644e | 3855 | { |
e40d43cc | 3856 | const char *startp, *endp; |
25a1c410 | 3857 | char *nstore = (char *) alloca (strlen (temp) + 3); |
d7a9644e | 3858 | |
3859 | startp = endp = temp; | |
3860 | while (1) | |
3861 | { | |
99b832c9 | 3862 | if (*endp == PATH_SEPARATOR || *endp == 0) |
d7a9644e | 3863 | { |
026f2c7a | 3864 | strncpy (nstore, startp, endp - startp); |
d7a9644e | 3865 | if (endp == startp) |
4e2023c8 | 3866 | strcpy (nstore, concat (".", dir_separator_str, NULL)); |
79b23a1e | 3867 | else if (!IS_DIR_SEPARATOR (endp[-1])) |
d7a9644e | 3868 | { |
026f2c7a | 3869 | nstore[endp - startp] = DIR_SEPARATOR; |
3870 | nstore[endp - startp + 1] = 0; | |
d7a9644e | 3871 | } |
3872 | else | |
026f2c7a | 3873 | nstore[endp - startp] = 0; |
d946ea19 | 3874 | add_prefix (&startfile_prefixes, nstore, NULL, |
2af84186 | 3875 | PREFIX_PRIORITY_LAST, 0, 1); |
d7a9644e | 3876 | if (*endp == 0) |
3877 | break; | |
3878 | endp = startp = endp + 1; | |
3879 | } | |
3880 | else | |
3881 | endp++; | |
3882 | } | |
3883 | } | |
3884 | ||
3885 | /* Use LPATH like LIBRARY_PATH (for the CMU build program). */ | |
967958e4 | 3886 | temp = getenv ("LPATH"); |
c6456dcd | 3887 | if (temp && *cross_compile == '0') |
d7a9644e | 3888 | { |
e40d43cc | 3889 | const char *startp, *endp; |
25a1c410 | 3890 | char *nstore = (char *) alloca (strlen (temp) + 3); |
d7a9644e | 3891 | |
3892 | startp = endp = temp; | |
3893 | while (1) | |
3894 | { | |
99b832c9 | 3895 | if (*endp == PATH_SEPARATOR || *endp == 0) |
d7a9644e | 3896 | { |
026f2c7a | 3897 | strncpy (nstore, startp, endp - startp); |
d7a9644e | 3898 | if (endp == startp) |
4e2023c8 | 3899 | strcpy (nstore, concat (".", dir_separator_str, NULL)); |
79b23a1e | 3900 | else if (!IS_DIR_SEPARATOR (endp[-1])) |
d7a9644e | 3901 | { |
026f2c7a | 3902 | nstore[endp - startp] = DIR_SEPARATOR; |
3903 | nstore[endp - startp + 1] = 0; | |
d7a9644e | 3904 | } |
3905 | else | |
026f2c7a | 3906 | nstore[endp - startp] = 0; |
d946ea19 | 3907 | add_prefix (&startfile_prefixes, nstore, NULL, |
2af84186 | 3908 | PREFIX_PRIORITY_LAST, 0, 1); |
d7a9644e | 3909 | if (*endp == 0) |
3910 | break; | |
3911 | endp = startp = endp + 1; | |
3912 | } | |
3913 | else | |
3914 | endp++; | |
3915 | } | |
3916 | } | |
3917 | ||
bd338b2c | 3918 | /* Process the options and store input files and switches in their |
3919 | vectors. */ | |
3920 | ||
3921 | last_language_n_infiles = -1; | |
d7a9644e | 3922 | |
4ff887c5 | 3923 | set_option_handlers (&handlers); |
0bfd146e | 3924 | |
e28aa114 | 3925 | for (j = 1; j < decoded_options_count; j++) |
3926 | { | |
3927 | switch (decoded_options[j].opt_index) | |
74e4079a | 3928 | { |
e28aa114 | 3929 | case OPT_S: |
3930 | case OPT_c: | |
3931 | case OPT_E: | |
3932 | have_c = 1; | |
3933 | break; | |
74e4079a | 3934 | } |
e28aa114 | 3935 | if (have_c) |
3936 | break; | |
3937 | } | |
d7a9644e | 3938 | |
e28aa114 | 3939 | for (j = 1; j < decoded_options_count; j++) |
3940 | { | |
3941 | if (decoded_options[j].opt_index == OPT_SPECIAL_input_file) | |
e71cc307 | 3942 | { |
e28aa114 | 3943 | const char *arg = decoded_options[j].arg; |
3944 | const char *p = strrchr (arg, '@'); | |
bd338b2c | 3945 | char *fname; |
3946 | long offset; | |
3947 | int consumed; | |
3948 | #ifdef HAVE_TARGET_OBJECT_SUFFIX | |
e28aa114 | 3949 | arg = convert_filename (arg, 0, access (arg, F_OK)); |
bd338b2c | 3950 | #endif |
3951 | /* For LTO static archive support we handle input file | |
3952 | specifications that are composed of a filename and | |
3953 | an offset like FNAME@OFFSET. */ | |
3954 | if (p | |
e28aa114 | 3955 | && p != arg |
bd338b2c | 3956 | && sscanf (p, "@%li%n", &offset, &consumed) >= 1 |
3957 | && strlen (p) == (unsigned int)consumed) | |
3958 | { | |
e28aa114 | 3959 | fname = (char *)xmalloc (p - arg + 1); |
3960 | memcpy (fname, arg, p - arg); | |
3961 | fname[p - arg] = '\0'; | |
bd338b2c | 3962 | /* Only accept non-stdin and existing FNAME parts, otherwise |
3963 | try with the full name. */ | |
3964 | if (strcmp (fname, "-") == 0 || access (fname, F_OK) < 0) | |
3965 | { | |
3966 | free (fname); | |
e28aa114 | 3967 | fname = xstrdup (arg); |
bd338b2c | 3968 | } |
3969 | } | |
3970 | else | |
e28aa114 | 3971 | fname = xstrdup (arg); |
556cfe53 | 3972 | |
bd338b2c | 3973 | if (strcmp (fname, "-") != 0 && access (fname, F_OK) < 0) |
3974 | perror_with_name (fname); | |
3975 | else | |
e28aa114 | 3976 | add_infile (arg, spec_lang); |
bd338b2c | 3977 | |
3978 | free (fname); | |
e28aa114 | 3979 | continue; |
e71cc307 | 3980 | } |
e28aa114 | 3981 | |
f83b64ca | 3982 | read_cmdline_option (&global_options, &global_options_set, |
3c6c0e40 | 3983 | decoded_options + j, UNKNOWN_LOCATION, |
3984 | CL_DRIVER, &handlers, global_dc); | |
d7a9644e | 3985 | } |
3986 | ||
cc92bc82 | 3987 | /* If -save-temps=obj and -o name, create the prefix to use for %b. |
3988 | Otherwise just make -save-temps=obj the same as -save-temps=cwd. */ | |
3989 | if (save_temps_flag == SAVE_TEMPS_OBJ && save_temps_prefix != NULL) | |
3990 | { | |
3991 | save_temps_length = strlen (save_temps_prefix); | |
3992 | temp = strrchr (lbasename (save_temps_prefix), '.'); | |
3993 | if (temp) | |
3994 | { | |
3995 | save_temps_length -= strlen (temp); | |
3996 | save_temps_prefix[save_temps_length] = '\0'; | |
3997 | } | |
3998 | ||
3999 | } | |
4000 | else if (save_temps_prefix != NULL) | |
4001 | { | |
4002 | free (save_temps_prefix); | |
4003 | save_temps_prefix = NULL; | |
4004 | } | |
4005 | ||
288e5bba | 4006 | if (save_temps_flag && use_pipes) |
805e22b2 | 4007 | { |
4008 | /* -save-temps overrides -pipe, so that temp files are produced */ | |
4009 | if (save_temps_flag) | |
a922df2e | 4010 | warning (0, "-pipe ignored because -save-temps specified"); |
805e22b2 | 4011 | use_pipes = 0; |
4012 | } | |
952f0048 | 4013 | |
71278019 | 4014 | if (!compare_debug) |
4015 | { | |
4016 | const char *gcd = getenv ("GCC_COMPARE_DEBUG"); | |
4017 | ||
4018 | if (gcd && gcd[0] == '-') | |
4019 | { | |
4020 | compare_debug = 2; | |
4021 | compare_debug_opt = gcd; | |
71278019 | 4022 | } |
4023 | else if (gcd && *gcd && strcmp (gcd, "0")) | |
4024 | { | |
4025 | compare_debug = 3; | |
4026 | compare_debug_opt = "-gtoggle"; | |
71278019 | 4027 | } |
4028 | } | |
4029 | else if (compare_debug < 0) | |
4030 | { | |
4031 | compare_debug = 0; | |
4032 | gcc_assert (!compare_debug_opt); | |
4033 | } | |
4034 | ||
c4328bcc | 4035 | /* Set up the search paths. We add directories that we expect to |
4036 | contain GNU Toolchain components before directories specified by | |
4037 | the machine description so that we will find GNU components (like | |
48e1416a | 4038 | the GNU assembler) before those of the host system. */ |
d7a9644e | 4039 | |
c4328bcc | 4040 | /* If we don't know where the toolchain has been installed, use the |
4041 | configured-in locations. */ | |
4042 | if (!gcc_exec_prefix) | |
4043 | { | |
b9374a77 | 4044 | #ifndef OS2 |
c4328bcc | 4045 | add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC", |
4046 | PREFIX_PRIORITY_LAST, 1, 0); | |
4047 | add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS", | |
4048 | PREFIX_PRIORITY_LAST, 2, 0); | |
4049 | add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS", | |
4050 | PREFIX_PRIORITY_LAST, 2, 0); | |
b9374a77 | 4051 | #endif |
c4328bcc | 4052 | add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS", |
4053 | PREFIX_PRIORITY_LAST, 1, 0); | |
4054 | } | |
d7a9644e | 4055 | |
c4328bcc | 4056 | gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix)); |
ce0fdb91 | 4057 | tooldir_prefix2 = concat (tooldir_base_prefix, spec_machine, |
4058 | dir_separator_str, NULL); | |
6c6aff9e | 4059 | |
c4328bcc | 4060 | /* Look for tools relative to the location from which the driver is |
4061 | running, or, if that is not available, the configured prefix. */ | |
4062 | tooldir_prefix | |
4063 | = concat (gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix, | |
4064 | spec_machine, dir_separator_str, | |
ce0fdb91 | 4065 | spec_version, dir_separator_str, tooldir_prefix2, NULL); |
4066 | free (tooldir_prefix2); | |
6c6aff9e | 4067 | |
2c815aff | 4068 | add_prefix (&exec_prefixes, |
4e2023c8 | 4069 | concat (tooldir_prefix, "bin", dir_separator_str, NULL), |
2af84186 | 4070 | "BINUTILS", PREFIX_PRIORITY_LAST, 0, 0); |
b9374a77 | 4071 | add_prefix (&startfile_prefixes, |
4e2023c8 | 4072 | concat (tooldir_prefix, "lib", dir_separator_str, NULL), |
2af84186 | 4073 | "BINUTILS", PREFIX_PRIORITY_LAST, 0, 1); |
ce0fdb91 | 4074 | free (tooldir_prefix); |
06e67e16 | 4075 | |
17acc97a | 4076 | #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS) |
4077 | /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix, | |
4078 | then consider it to relocate with the rest of the GCC installation | |
4079 | if GCC_EXEC_PREFIX is set. | |
4080 | ``make_relative_prefix'' is not compiled for VMS, so don't call it. */ | |
bd338b2c | 4081 | if (target_system_root && !target_system_root_changed && gcc_exec_prefix) |
805e22b2 | 4082 | { |
e62df35b | 4083 | char *tmp_prefix = get_relative_prefix (decoded_options[0].arg, |
d05a1771 | 4084 | standard_bindir_prefix, |
4085 | target_system_root); | |
805e22b2 | 4086 | if (tmp_prefix && access_check (tmp_prefix, F_OK) == 0) |
17acc97a | 4087 | { |
4088 | target_system_root = tmp_prefix; | |
4089 | target_system_root_changed = 1; | |
4090 | } | |
805e22b2 | 4091 | } |
17acc97a | 4092 | #endif |
805e22b2 | 4093 | |
a45072dd | 4094 | /* More prefixes are enabled in main, after we read the specs file |
4095 | and determine whether this is cross-compilation or not. */ | |
d7a9644e | 4096 | |
b0e7b414 | 4097 | if (n_infiles == last_language_n_infiles && spec_lang != 0) |
a8c464ac | 4098 | warning (0, "%<-x %s%> after last input file has no effect", spec_lang); |
d7a9644e | 4099 | |
c5f21b95 | 4100 | /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG |
4101 | environment variable. */ | |
71278019 | 4102 | if (compare_debug == 2 || compare_debug == 3) |
4103 | { | |
c5f21b95 | 4104 | const char *opt = concat ("-fcompare-debug=", compare_debug_opt, NULL); |
4105 | save_switch (opt, 0, NULL, false, true); | |
71278019 | 4106 | compare_debug = 1; |
4107 | } | |
4108 | ||
258d3911 | 4109 | /* Ensure we only invoke each subprocess once. */ |
39932bd2 | 4110 | if (print_subprocess_help || print_help_list || print_version) |
258d3911 | 4111 | { |
bd338b2c | 4112 | n_infiles = 0; |
258d3911 | 4113 | |
87c75316 | 4114 | /* Create a dummy input file, so that we can pass |
4115 | the help option on to the various sub-processes. */ | |
bd338b2c | 4116 | add_infile ("help-dummy", "c"); |
258d3911 | 4117 | } |
4118 | ||
bd338b2c | 4119 | alloc_switch (); |
d7a9644e | 4120 | switches[n_switches].part1 = 0; |
bd338b2c | 4121 | alloc_infile (); |
d7a9644e | 4122 | infiles[n_infiles].name = 0; |
4123 | } | |
32d661fc | 4124 | |
805e22b2 | 4125 | /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS |
32d661fc | 4126 | and place that in the environment. */ |
4127 | ||
4128 | static void | |
952f0048 | 4129 | set_collect_gcc_options (void) |
32d661fc | 4130 | { |
4131 | int i; | |
4132 | int first_time; | |
4133 | ||
4134 | /* Build COLLECT_GCC_OPTIONS to have all of the options specified to | |
4135 | the compiler. */ | |
4136 | obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=", | |
4137 | sizeof ("COLLECT_GCC_OPTIONS=") - 1); | |
4138 | ||
4139 | first_time = TRUE; | |
4140 | for (i = 0; (int) i < n_switches; i++) | |
4141 | { | |
4142 | const char *const *args; | |
4143 | const char *p, *q; | |
4144 | if (!first_time) | |
4145 | obstack_grow (&collect_obstack, " ", 1); | |
4146 | ||
4147 | first_time = FALSE; | |
4148 | ||
4149 | /* Ignore elided switches. */ | |
5c1421d7 | 4150 | if ((switches[i].live_cond |
4151 | & (SWITCH_IGNORE | SWITCH_KEEP_FOR_GCC)) | |
4152 | == SWITCH_IGNORE) | |
32d661fc | 4153 | continue; |
4154 | ||
4155 | obstack_grow (&collect_obstack, "'-", 2); | |
4156 | q = switches[i].part1; | |
4157 | while ((p = strchr (q, '\''))) | |
4158 | { | |
4159 | obstack_grow (&collect_obstack, q, p - q); | |
4160 | obstack_grow (&collect_obstack, "'\\''", 4); | |
4161 | q = ++p; | |
4162 | } | |
4163 | obstack_grow (&collect_obstack, q, strlen (q)); | |
4164 | obstack_grow (&collect_obstack, "'", 1); | |
4165 | ||
4166 | for (args = switches[i].args; args && *args; args++) | |
4167 | { | |
4168 | obstack_grow (&collect_obstack, " '", 2); | |
4169 | q = *args; | |
4170 | while ((p = strchr (q, '\''))) | |
4171 | { | |
4172 | obstack_grow (&collect_obstack, q, p - q); | |
4173 | obstack_grow (&collect_obstack, "'\\''", 4); | |
4174 | q = ++p; | |
4175 | } | |
4176 | obstack_grow (&collect_obstack, q, strlen (q)); | |
4177 | obstack_grow (&collect_obstack, "'", 1); | |
4178 | } | |
4179 | } | |
4180 | obstack_grow (&collect_obstack, "\0", 1); | |
99c00302 | 4181 | xputenv (XOBFINISH (&collect_obstack, char *)); |
32d661fc | 4182 | } |
d7a9644e | 4183 | \f |
4184 | /* Process a spec string, accumulating and running commands. */ | |
4185 | ||
4186 | /* These variables describe the input file name. | |
4187 | input_file_number is the index on outfiles of this file, | |
4188 | so that the output file name can be stored for later use by %o. | |
4189 | input_basename is the start of the part of the input file | |
4190 | sans all directory names, and basename_length is the number | |
4191 | of characters starting there excluding the suffix .c or whatever. */ | |
4192 | ||
460b8bb3 | 4193 | static const char *gcc_input_filename; |
d7a9644e | 4194 | static int input_file_number; |
f9b7c0b9 | 4195 | size_t input_filename_length; |
d7a9644e | 4196 | static int basename_length; |
1cf79a1a | 4197 | static int suffixed_basename_length; |
e40d43cc | 4198 | static const char *input_basename; |
4199 | static const char *input_suffix; | |
030ec15c | 4200 | #ifndef HOST_LACKS_INODE_NUMBERS |
74e4079a | 4201 | static struct stat input_stat; |
030ec15c | 4202 | #endif |
74e4079a | 4203 | static int input_stat_set; |
d7a9644e | 4204 | |
96842e40 | 4205 | /* The compiler used to process the current input file. */ |
4206 | static struct compiler *input_file_compiler; | |
4207 | ||
d7a9644e | 4208 | /* These are variables used within do_spec and do_spec_1. */ |
4209 | ||
4210 | /* Nonzero if an arg has been started and not yet terminated | |
4211 | (with space, tab or newline). */ | |
4212 | static int arg_going; | |
4213 | ||
4214 | /* Nonzero means %d or %g has been seen; the next arg to be terminated | |
4215 | is a temporary file name. */ | |
4216 | static int delete_this_arg; | |
4217 | ||
4218 | /* Nonzero means %w has been seen; the next arg to be terminated | |
4219 | is the output file name of this compilation. */ | |
4220 | static int this_is_output_file; | |
4221 | ||
4222 | /* Nonzero means %s has been seen; the next arg to be terminated | |
4223 | is the name of a library file and we should try the standard | |
4224 | search dirs for it. */ | |
4225 | static int this_is_library_file; | |
4226 | ||
d7ee9e9b | 4227 | /* Nonzero means %T has been seen; the next arg to be terminated |
4228 | is the name of a linker script and we should try all of the | |
4229 | standard search dirs for it. If it is found insert a --script | |
4230 | command line switch and then substitute the full path in place, | |
4231 | otherwise generate an error message. */ | |
4232 | static int this_is_linker_script; | |
4233 | ||
f90016ef | 4234 | /* Nonzero means that the input of this command is coming from a pipe. */ |
4235 | static int input_from_pipe; | |
4236 | ||
bdbd5352 | 4237 | /* Nonnull means substitute this for any suffix when outputting a switches |
aa40f561 | 4238 | arguments. */ |
bdbd5352 | 4239 | static const char *suffix_subst; |
4240 | ||
558cc3be | 4241 | /* If there is an argument being accumulated, terminate it and store it. */ |
4242 | ||
4243 | static void | |
4244 | end_going_arg (void) | |
4245 | { | |
4246 | if (arg_going) | |
4247 | { | |
4248 | const char *string; | |
4249 | ||
4250 | obstack_1grow (&obstack, 0); | |
4251 | string = XOBFINISH (&obstack, const char *); | |
4252 | if (this_is_library_file) | |
4253 | string = find_file (string); | |
d7ee9e9b | 4254 | if (this_is_linker_script) |
4255 | { | |
4256 | char * full_script_path = find_a_file (&startfile_prefixes, string, R_OK, true); | |
4257 | ||
4258 | if (full_script_path == NULL) | |
4259 | { | |
a8c464ac | 4260 | error ("unable to locate default linker script %qs in the library search paths", string); |
d7ee9e9b | 4261 | /* Script was not found on search path. */ |
4262 | return; | |
4263 | } | |
4264 | store_arg ("--script", false, false); | |
4265 | string = full_script_path; | |
4266 | } | |
558cc3be | 4267 | store_arg (string, delete_this_arg, this_is_output_file); |
4268 | if (this_is_output_file) | |
4269 | outfiles[input_file_number] = string; | |
4270 | arg_going = 0; | |
4271 | } | |
4272 | } | |
4273 | ||
0bfd146e | 4274 | |
4275 | /* Parse the WRAPPER string which is a comma separated list of the command line | |
4276 | and insert them into the beginning of argbuf. */ | |
4277 | ||
4278 | static void | |
4279 | insert_wrapper (const char *wrapper) | |
4280 | { | |
4281 | int n = 0; | |
4282 | int i; | |
4283 | char *buf = xstrdup (wrapper); | |
4284 | char *p = buf; | |
f1f41a6c | 4285 | unsigned int old_length = argbuf.length (); |
0bfd146e | 4286 | |
4287 | do | |
4288 | { | |
4289 | n++; | |
4290 | while (*p == ',') | |
4291 | p++; | |
4292 | } | |
4293 | while ((p = strchr (p, ',')) != NULL); | |
4294 | ||
f1f41a6c | 4295 | argbuf.safe_grow (old_length + n); |
4296 | memmove (argbuf.address () + n, | |
4297 | argbuf.address (), | |
9d9edc85 | 4298 | old_length * sizeof (const_char_p)); |
0bfd146e | 4299 | |
4300 | i = 0; | |
4301 | p = buf; | |
4302 | do | |
4303 | { | |
4304 | while (*p == ',') | |
4305 | { | |
4306 | *p = 0; | |
4307 | p++; | |
4308 | } | |
f1f41a6c | 4309 | argbuf[i] = p; |
9d9edc85 | 4310 | i++; |
0bfd146e | 4311 | } |
4312 | while ((p = strchr (p, ',')) != NULL); | |
4313 | gcc_assert (i == n); | |
0bfd146e | 4314 | } |
4315 | ||
d7a9644e | 4316 | /* Process the spec SPEC and run the commands specified therein. |
4317 | Returns 0 if the spec is successfully processed; -1 if failed. */ | |
4318 | ||
f9b7c0b9 | 4319 | int |
952f0048 | 4320 | do_spec (const char *spec) |
d7a9644e | 4321 | { |
4322 | int value; | |
4323 | ||
4ae4e5e8 | 4324 | value = do_spec_2 (spec); |
d7a9644e | 4325 | |
4326 | /* Force out any unfinished command. | |
4327 | If -pipe, this forces out the last command if it ended in `|'. */ | |
4328 | if (value == 0) | |
4329 | { | |
f1f41a6c | 4330 | if (argbuf.length () > 0 |
4331 | && !strcmp (argbuf.last (), "|")) | |
4332 | argbuf.pop (); | |
d7a9644e | 4333 | |
32d661fc | 4334 | set_collect_gcc_options (); |
4335 | ||
f1f41a6c | 4336 | if (argbuf.length () > 0) |
d7a9644e | 4337 | value = execute (); |
4338 | } | |
4339 | ||
4340 | return value; | |
4341 | } | |
4342 | ||
4ae4e5e8 | 4343 | static int |
952f0048 | 4344 | do_spec_2 (const char *spec) |
4ae4e5e8 | 4345 | { |
5842765d | 4346 | int result; |
4347 | ||
4ae4e5e8 | 4348 | clear_args (); |
4349 | arg_going = 0; | |
4350 | delete_this_arg = 0; | |
4351 | this_is_output_file = 0; | |
4352 | this_is_library_file = 0; | |
d7ee9e9b | 4353 | this_is_linker_script = 0; |
4ae4e5e8 | 4354 | input_from_pipe = 0; |
4355 | suffix_subst = NULL; | |
4356 | ||
5842765d | 4357 | result = do_spec_1 (spec, 0, NULL); |
4358 | ||
558cc3be | 4359 | end_going_arg (); |
5842765d | 4360 | |
4361 | return result; | |
4ae4e5e8 | 4362 | } |
4363 | ||
73023f49 | 4364 | |
7dd97ab6 | 4365 | /* Process the given spec string and add any new options to the end |
4366 | of the switches/n_switches array. */ | |
4367 | ||
4368 | static void | |
952f0048 | 4369 | do_option_spec (const char *name, const char *spec) |
7dd97ab6 | 4370 | { |
4371 | unsigned int i, value_count, value_len; | |
4372 | const char *p, *q, *value; | |
4373 | char *tmp_spec, *tmp_spec_p; | |
4374 | ||
4375 | if (configure_default_options[0].name == NULL) | |
4376 | return; | |
4377 | ||
4378 | for (i = 0; i < ARRAY_SIZE (configure_default_options); i++) | |
4379 | if (strcmp (configure_default_options[i].name, name) == 0) | |
4380 | break; | |
4381 | if (i == ARRAY_SIZE (configure_default_options)) | |
4382 | return; | |
4383 | ||
4384 | value = configure_default_options[i].value; | |
4385 | value_len = strlen (value); | |
4386 | ||
4387 | /* Compute the size of the final spec. */ | |
4388 | value_count = 0; | |
4389 | p = spec; | |
4390 | while ((p = strstr (p, "%(VALUE)")) != NULL) | |
4391 | { | |
4392 | p ++; | |
4393 | value_count ++; | |
4394 | } | |
4395 | ||
4396 | /* Replace each %(VALUE) by the specified value. */ | |
25a1c410 | 4397 | tmp_spec = (char *) alloca (strlen (spec) + 1 |
7dd97ab6 | 4398 | + value_count * (value_len - strlen ("%(VALUE)"))); |
4399 | tmp_spec_p = tmp_spec; | |
4400 | q = spec; | |
4401 | while ((p = strstr (q, "%(VALUE)")) != NULL) | |
4402 | { | |
4403 | memcpy (tmp_spec_p, q, p - q); | |
4404 | tmp_spec_p = tmp_spec_p + (p - q); | |
4405 | memcpy (tmp_spec_p, value, value_len); | |
4406 | tmp_spec_p += value_len; | |
4407 | q = p + strlen ("%(VALUE)"); | |
4408 | } | |
4409 | strcpy (tmp_spec_p, q); | |
4410 | ||
4411 | do_self_spec (tmp_spec); | |
4412 | } | |
4413 | ||
73023f49 | 4414 | /* Process the given spec string and add any new options to the end |
4415 | of the switches/n_switches array. */ | |
4416 | ||
4417 | static void | |
952f0048 | 4418 | do_self_spec (const char *spec) |
73023f49 | 4419 | { |
87a6a1b5 | 4420 | int i; |
4421 | ||
73023f49 | 4422 | do_spec_2 (spec); |
4423 | do_spec_1 (" ", 0, NULL); | |
4424 | ||
87a6a1b5 | 4425 | /* Mark %<S switches processed by do_self_spec to be ignored permanently. |
4426 | do_self_specs adds the replacements to switches array, so it shouldn't | |
4427 | be processed afterwards. */ | |
4428 | for (i = 0; i < n_switches; i++) | |
4429 | if ((switches[i].live_cond & SWITCH_IGNORE)) | |
4430 | switches[i].live_cond |= SWITCH_IGNORE_PERMANENTLY; | |
4431 | ||
f1f41a6c | 4432 | if (argbuf.length () > 0) |
73023f49 | 4433 | { |
4ff887c5 | 4434 | const char **argbuf_copy; |
4435 | struct cl_decoded_option *decoded_options; | |
4436 | struct cl_option_handlers handlers; | |
4437 | unsigned int decoded_options_count; | |
4438 | unsigned int j; | |
73023f49 | 4439 | |
4ff887c5 | 4440 | /* Create a copy of argbuf with a dummy argv[0] entry for |
4441 | decode_cmdline_options_to_array. */ | |
9d9edc85 | 4442 | argbuf_copy = XNEWVEC (const char *, |
f1f41a6c | 4443 | argbuf.length () + 1); |
4ff887c5 | 4444 | argbuf_copy[0] = ""; |
f1f41a6c | 4445 | memcpy (argbuf_copy + 1, argbuf.address (), |
4446 | argbuf.length () * sizeof (const char *)); | |
73023f49 | 4447 | |
f1f41a6c | 4448 | decode_cmdline_options_to_array (argbuf.length () + 1, |
9d9edc85 | 4449 | argbuf_copy, |
4ff887c5 | 4450 | CL_DRIVER, &decoded_options, |
4451 | &decoded_options_count); | |
ce0fdb91 | 4452 | free (argbuf_copy); |
71278019 | 4453 | |
4ff887c5 | 4454 | set_option_handlers (&handlers); |
71278019 | 4455 | |
4ff887c5 | 4456 | for (j = 1; j < decoded_options_count; j++) |
4457 | { | |
4458 | switch (decoded_options[j].opt_index) | |
71278019 | 4459 | { |
4ff887c5 | 4460 | case OPT_SPECIAL_input_file: |
4461 | /* Specs should only generate options, not input | |
4462 | files. */ | |
4463 | if (strcmp (decoded_options[j].arg, "-") != 0) | |
4464 | fatal_error ("switch %qs does not start with %<-%>", | |
4465 | decoded_options[j].arg); | |
4466 | else | |
4467 | fatal_error ("spec-generated switch is just %<-%>"); | |
4468 | break; | |
71278019 | 4469 | |
4ff887c5 | 4470 | case OPT_fcompare_debug_second: |
4471 | case OPT_fcompare_debug: | |
4472 | case OPT_fcompare_debug_: | |
4473 | case OPT_o: | |
4474 | /* Avoid duplicate processing of some options from | |
4475 | compare-debug specs; just save them here. */ | |
4476 | save_switch (decoded_options[j].canonical_option[0], | |
4477 | (decoded_options[j].canonical_option_num_elements | |
4478 | - 1), | |
556cfe53 | 4479 | &decoded_options[j].canonical_option[1], false, true); |
4ff887c5 | 4480 | break; |
4481 | ||
4482 | default: | |
4483 | read_cmdline_option (&global_options, &global_options_set, | |
3c6c0e40 | 4484 | decoded_options + j, UNKNOWN_LOCATION, |
4485 | CL_DRIVER, &handlers, global_dc); | |
4ff887c5 | 4486 | break; |
71278019 | 4487 | } |
73023f49 | 4488 | } |
71278019 | 4489 | |
4ff887c5 | 4490 | alloc_switch (); |
71278019 | 4491 | switches[n_switches].part1 = 0; |
73023f49 | 4492 | } |
4493 | } | |
4494 | ||
067277c3 | 4495 | /* Callback for processing %D and %I specs. */ |
4496 | ||
4497 | struct spec_path_info { | |
4498 | const char *option; | |
4499 | const char *append; | |
4500 | size_t append_len; | |
4501 | bool omit_relative; | |
4502 | bool separate_options; | |
4503 | }; | |
4504 | ||
4505 | static void * | |
4506 | spec_path (char *path, void *data) | |
42bbc7e6 | 4507 | { |
25a1c410 | 4508 | struct spec_path_info *info = (struct spec_path_info *) data; |
067277c3 | 4509 | size_t len = 0; |
4510 | char save = 0; | |
42bbc7e6 | 4511 | |
067277c3 | 4512 | if (info->omit_relative && !IS_ABSOLUTE_PATH (path)) |
4513 | return NULL; | |
4514 | ||
4515 | if (info->append_len != 0) | |
42bbc7e6 | 4516 | { |
067277c3 | 4517 | len = strlen (path); |
4518 | memcpy (path + len, info->append, info->append_len + 1); | |
42bbc7e6 | 4519 | } |
4520 | ||
067277c3 | 4521 | if (!is_directory (path, true)) |
4522 | return NULL; | |
42bbc7e6 | 4523 | |
067277c3 | 4524 | do_spec_1 (info->option, 1, NULL); |
4525 | if (info->separate_options) | |
4526 | do_spec_1 (" ", 0, NULL); | |
4527 | ||
4528 | if (info->append_len == 0) | |
42bbc7e6 | 4529 | { |
067277c3 | 4530 | len = strlen (path); |
4531 | save = path[len - 1]; | |
4532 | if (IS_DIR_SEPARATOR (path[len - 1])) | |
4533 | path[len - 1] = '\0'; | |
42bbc7e6 | 4534 | } |
067277c3 | 4535 | |
4536 | do_spec_1 (path, 1, NULL); | |
4537 | do_spec_1 (" ", 0, NULL); | |
4538 | ||
4539 | /* Must not damage the original path. */ | |
4540 | if (info->append_len == 0) | |
4541 | path[len - 1] = save; | |
4542 | ||
4543 | return NULL; | |
42bbc7e6 | 4544 | } |
4545 | ||
46782931 | 4546 | /* Create a temporary FILE with the contents of ARGV. Add @FILE to the |
4547 | argument list. */ | |
4548 | ||
4549 | static void | |
4550 | create_at_file (char **argv) | |
4551 | { | |
4552 | char *temp_file = make_temp_file (""); | |
4553 | char *at_argument = concat ("@", temp_file, NULL); | |
4554 | FILE *f = fopen (temp_file, "w"); | |
4555 | int status; | |
4556 | ||
4557 | if (f == NULL) | |
a922df2e | 4558 | fatal_error ("could not open temporary response file %s", |
4559 | temp_file); | |
46782931 | 4560 | |
4561 | status = writeargv (argv, f); | |
4562 | ||
4563 | if (status) | |
a922df2e | 4564 | fatal_error ("could not write to temporary response file %s", |
4565 | temp_file); | |
46782931 | 4566 | |
4567 | status = fclose (f); | |
4568 | ||
4569 | if (EOF == status) | |
a922df2e | 4570 | fatal_error ("could not close temporary response file %s", |
4571 | temp_file); | |
46782931 | 4572 | |
4573 | store_arg (at_argument, 0, 0); | |
4574 | ||
4575 | record_temp_file (temp_file, !save_temps_flag, !save_temps_flag); | |
4576 | } | |
4577 | ||
4578 | /* True if we should compile INFILE. */ | |
4579 | ||
4580 | static bool | |
4581 | compile_input_file_p (struct infile *infile) | |
4582 | { | |
4583 | if ((!infile->language) || (infile->language[0] != '*')) | |
4584 | if (infile->incompiler == input_file_compiler) | |
4585 | return true; | |
4586 | return false; | |
4587 | } | |
4588 | ||
74c33122 | 4589 | /* Process each member of VEC as a spec. */ |
4590 | ||
4591 | static void | |
f1f41a6c | 4592 | do_specs_vec (vec<char_p> vec) |
74c33122 | 4593 | { |
4594 | unsigned ix; | |
4595 | char *opt; | |
4596 | ||
f1f41a6c | 4597 | FOR_EACH_VEC_ELT (vec, ix, opt) |
74c33122 | 4598 | { |
4599 | do_spec_1 (opt, 1, NULL); | |
4600 | /* Make each accumulated option a separate argument. */ | |
4601 | do_spec_1 (" ", 0, NULL); | |
4602 | } | |
4603 | } | |
4604 | ||
d7a9644e | 4605 | /* Process the sub-spec SPEC as a portion of a larger spec. |
4606 | This is like processing a whole spec except that we do | |
4607 | not initialize at the beginning and we do not supply a | |
4608 | newline by default at the end. | |
4609 | INSWITCH nonzero means don't process %-sequences in SPEC; | |
4610 | in this case, % is treated as an ordinary character. | |
4611 | This is used while substituting switches. | |
4612 | INSWITCH nonzero also causes SPC not to terminate an argument. | |
4613 | ||
4614 | Value is zero unless a line was finished | |
4615 | and the command on that line reported an error. */ | |
4616 | ||
4617 | static int | |
952f0048 | 4618 | do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part) |
d7a9644e | 4619 | { |
19cb6b50 | 4620 | const char *p = spec; |
4621 | int c; | |
d7a9644e | 4622 | int i; |
fd8c18f0 | 4623 | int value; |
d7a9644e | 4624 | |
fde5bd5c | 4625 | /* If it's an empty string argument to a switch, keep it as is. */ |
4626 | if (inswitch && !*p) | |
4627 | arg_going = 1; | |
4628 | ||
00e598e3 | 4629 | while ((c = *p++)) |
d7a9644e | 4630 | /* If substituting a switch, treat all chars like letters. |
4631 | Otherwise, NL, SPC, TAB and % are special. */ | |
4632 | switch (inswitch ? 'a' : c) | |
4633 | { | |
4634 | case '\n': | |
558cc3be | 4635 | end_going_arg (); |
d7a9644e | 4636 | |
f1f41a6c | 4637 | if (argbuf.length () > 0 |
4638 | && !strcmp (argbuf.last (), "|")) | |
d7a9644e | 4639 | { |
d7a9644e | 4640 | /* A `|' before the newline means use a pipe here, |
4641 | but only if -pipe was specified. | |
4642 | Otherwise, execute now and don't pass the `|' as an arg. */ | |
805e22b2 | 4643 | if (use_pipes) |
d7a9644e | 4644 | { |
f90016ef | 4645 | input_from_pipe = 1; |
d7a9644e | 4646 | break; |
4647 | } | |
4648 | else | |
f1f41a6c | 4649 | argbuf.pop (); |
d7a9644e | 4650 | } |
4651 | ||
32d661fc | 4652 | set_collect_gcc_options (); |
4653 | ||
f1f41a6c | 4654 | if (argbuf.length () > 0) |
d7a9644e | 4655 | { |
fd8c18f0 | 4656 | value = execute (); |
d7a9644e | 4657 | if (value) |
4658 | return value; | |
4659 | } | |
4660 | /* Reinitialize for a new command, and for a new argument. */ | |
4661 | clear_args (); | |
4662 | arg_going = 0; | |
4663 | delete_this_arg = 0; | |
4664 | this_is_output_file = 0; | |
4665 | this_is_library_file = 0; | |
d7ee9e9b | 4666 | this_is_linker_script = 0; |
f90016ef | 4667 | input_from_pipe = 0; |
d7a9644e | 4668 | break; |
4669 | ||
4670 | case '|': | |
558cc3be | 4671 | end_going_arg (); |
d7a9644e | 4672 | |
4673 | /* Use pipe */ | |
4674 | obstack_1grow (&obstack, c); | |
4675 | arg_going = 1; | |
4676 | break; | |
4677 | ||
4678 | case '\t': | |
4679 | case ' ': | |
558cc3be | 4680 | end_going_arg (); |
4681 | ||
d7a9644e | 4682 | /* Reinitialize for a new argument. */ |
d7a9644e | 4683 | delete_this_arg = 0; |
4684 | this_is_output_file = 0; | |
4685 | this_is_library_file = 0; | |
d7ee9e9b | 4686 | this_is_linker_script = 0; |
d7a9644e | 4687 | break; |
4688 | ||
4689 | case '%': | |
4690 | switch (c = *p++) | |
4691 | { | |
4692 | case 0: | |
a8c464ac | 4693 | fatal_error ("spec %qs invalid", spec); |
d7a9644e | 4694 | |
4695 | case 'b': | |
cc92bc82 | 4696 | if (save_temps_length) |
4697 | obstack_grow (&obstack, save_temps_prefix, save_temps_length); | |
4698 | else | |
4699 | obstack_grow (&obstack, input_basename, basename_length); | |
71278019 | 4700 | if (compare_debug < 0) |
4701 | obstack_grow (&obstack, ".gk", 3); | |
d7a9644e | 4702 | arg_going = 1; |
4703 | break; | |
4704 | ||
1cf79a1a | 4705 | case 'B': |
cc92bc82 | 4706 | if (save_temps_length) |
4707 | obstack_grow (&obstack, save_temps_prefix, save_temps_length); | |
4708 | else | |
4709 | obstack_grow (&obstack, input_basename, suffixed_basename_length); | |
71278019 | 4710 | if (compare_debug < 0) |
4711 | obstack_grow (&obstack, ".gk", 3); | |
1cf79a1a | 4712 | arg_going = 1; |
4713 | break; | |
4714 | ||
d7a9644e | 4715 | case 'd': |
4716 | delete_this_arg = 2; | |
4717 | break; | |
4718 | ||
4719 | /* Dump out the directories specified with LIBRARY_PATH, | |
a45072dd | 4720 | followed by the absolute directories |
4721 | that we search for startfiles. */ | |
d7a9644e | 4722 | case 'D': |
466996dd | 4723 | { |
067277c3 | 4724 | struct spec_path_info info; |
9942f943 | 4725 | |
067277c3 | 4726 | info.option = "-L"; |
4727 | info.append_len = 0; | |
42bbc7e6 | 4728 | #ifdef RELATIVE_PREFIX_NOT_LINKDIR |
067277c3 | 4729 | /* Used on systems which record the specified -L dirs |
4730 | and use them to search for dynamic linking. | |
4731 | Relative directories always come from -B, | |
4732 | and it is better not to use them for searching | |
4733 | at run time. In particular, stage1 loses. */ | |
4734 | info.omit_relative = true; | |
42bbc7e6 | 4735 | #else |
067277c3 | 4736 | info.omit_relative = false; |
a45072dd | 4737 | #endif |
067277c3 | 4738 | info.separate_options = false; |
4739 | ||
4740 | for_each_path (&startfile_prefixes, true, 0, spec_path, &info); | |
466996dd | 4741 | } |
d7a9644e | 4742 | break; |
4743 | ||
4744 | case 'e': | |
be2828ce | 4745 | /* %efoo means report an error with `foo' as error message |
d7a9644e | 4746 | and don't execute any more commands for this file. */ |
4747 | { | |
e40d43cc | 4748 | const char *q = p; |
d7a9644e | 4749 | char *buf; |
026f2c7a | 4750 | while (*p != 0 && *p != '\n') |
4751 | p++; | |
25a1c410 | 4752 | buf = (char *) alloca (p - q + 1); |
d7a9644e | 4753 | strncpy (buf, q, p - q); |
4754 | buf[p - q] = 0; | |
5a3530cb | 4755 | error ("%s", _(buf)); |
d7a9644e | 4756 | return -1; |
4757 | } | |
4758 | break; | |
90286764 | 4759 | case 'n': |
edc2a478 | 4760 | /* %nfoo means report a notice with `foo' on stderr. */ |
90286764 | 4761 | { |
4762 | const char *q = p; | |
4763 | char *buf; | |
4764 | while (*p != 0 && *p != '\n') | |
4765 | p++; | |
25a1c410 | 4766 | buf = (char *) alloca (p - q + 1); |
90286764 | 4767 | strncpy (buf, q, p - q); |
4768 | buf[p - q] = 0; | |
a922df2e | 4769 | inform (0, "%s", _(buf)); |
90286764 | 4770 | if (*p) |
4771 | p++; | |
4772 | } | |
4773 | break; | |
d7a9644e | 4774 | |
026f2c7a | 4775 | case 'j': |
4776 | { | |
4777 | struct stat st; | |
4778 | ||
805e22b2 | 4779 | /* If save_temps_flag is off, and the HOST_BIT_BUCKET is |
4780 | defined, and it is not a directory, and it is | |
4781 | writable, use it. Otherwise, treat this like any | |
4782 | other temporary file. */ | |
026f2c7a | 4783 | |
4784 | if ((!save_temps_flag) | |
4785 | && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode)) | |
4786 | && (access (HOST_BIT_BUCKET, W_OK) == 0)) | |
4787 | { | |
4788 | obstack_grow (&obstack, HOST_BIT_BUCKET, | |
4789 | strlen (HOST_BIT_BUCKET)); | |
4790 | delete_this_arg = 0; | |
4791 | arg_going = 1; | |
4792 | break; | |
4793 | } | |
4794 | } | |
805e22b2 | 4795 | goto create_temp_file; |
4796 | case '|': | |
4797 | if (use_pipes) | |
4798 | { | |
4799 | obstack_1grow (&obstack, '-'); | |
4800 | delete_this_arg = 0; | |
4801 | arg_going = 1; | |
4802 | ||
4803 | /* consume suffix */ | |
b78b6a05 | 4804 | while (*p == '.' || ISALNUM ((unsigned char) *p)) |
805e22b2 | 4805 | p++; |
4806 | if (p[0] == '%' && p[1] == 'O') | |
4807 | p += 2; | |
952f0048 | 4808 | |
805e22b2 | 4809 | break; |
4810 | } | |
4811 | goto create_temp_file; | |
4812 | case 'm': | |
4813 | if (use_pipes) | |
4814 | { | |
4815 | /* consume suffix */ | |
b78b6a05 | 4816 | while (*p == '.' || ISALNUM ((unsigned char) *p)) |
805e22b2 | 4817 | p++; |
4818 | if (p[0] == '%' && p[1] == 'O') | |
4819 | p += 2; | |
952f0048 | 4820 | |
805e22b2 | 4821 | break; |
4822 | } | |
4823 | goto create_temp_file; | |
d7a9644e | 4824 | case 'g': |
5ee0d826 | 4825 | case 'u': |
e70085f9 | 4826 | case 'U': |
805e22b2 | 4827 | create_temp_file: |
d7a9644e | 4828 | { |
4576c73f | 4829 | struct temp_name *t; |
c78c5ee7 | 4830 | int suffix_length; |
e40d43cc | 4831 | const char *suffix = p; |
2c2aaf10 | 4832 | char *saved_suffix = NULL; |
c78c5ee7 | 4833 | |
b78b6a05 | 4834 | while (*p == '.' || ISALNUM ((unsigned char) *p)) |
2c2aaf10 | 4835 | p++; |
4836 | suffix_length = p - suffix; | |
c78c5ee7 | 4837 | if (p[0] == '%' && p[1] == 'O') |
4838 | { | |
97c9de01 | 4839 | p += 2; |
c78c5ee7 | 4840 | /* We don't support extra suffix characters after %O. */ |
b78b6a05 | 4841 | if (*p == '.' || ISALNUM ((unsigned char) *p)) |
a8c464ac | 4842 | fatal_error ("spec %qs has invalid %<%%0%c%>", spec, *p); |
2c2aaf10 | 4843 | if (suffix_length == 0) |
10f57222 | 4844 | suffix = TARGET_OBJECT_SUFFIX; |
2c2aaf10 | 4845 | else |
4846 | { | |
4847 | saved_suffix | |
4c36ffe6 | 4848 | = XNEWVEC (char, suffix_length |
f0af5a88 | 4849 | + strlen (TARGET_OBJECT_SUFFIX)); |
2c2aaf10 | 4850 | strncpy (saved_suffix, suffix, suffix_length); |
4851 | strcpy (saved_suffix + suffix_length, | |
10f57222 | 4852 | TARGET_OBJECT_SUFFIX); |
2c2aaf10 | 4853 | } |
10f57222 | 4854 | suffix_length += strlen (TARGET_OBJECT_SUFFIX); |
c78c5ee7 | 4855 | } |
3cfec666 | 4856 | |
71278019 | 4857 | if (compare_debug < 0) |
4858 | { | |
4859 | suffix = concat (".gk", suffix, NULL); | |
4860 | suffix_length += 3; | |
4861 | } | |
4862 | ||
cc92bc82 | 4863 | /* If -save-temps=obj and -o were specified, use that for the |
4864 | temp file. */ | |
4865 | if (save_temps_length) | |
4866 | { | |
4867 | char *tmp; | |
4868 | temp_filename_length | |
4869 | = save_temps_length + suffix_length + 1; | |
4870 | tmp = (char *) alloca (temp_filename_length); | |
4871 | memcpy (tmp, save_temps_prefix, save_temps_length); | |
4872 | memcpy (tmp + save_temps_length, suffix, suffix_length); | |
4873 | tmp[save_temps_length + suffix_length] = '\0'; | |
ce0fdb91 | 4874 | temp_filename = save_string (tmp, save_temps_length |
4875 | + suffix_length); | |
cc92bc82 | 4876 | obstack_grow (&obstack, temp_filename, |
4877 | temp_filename_length); | |
4878 | arg_going = 1; | |
4879 | delete_this_arg = 0; | |
4880 | break; | |
4881 | } | |
4882 | ||
460b8bb3 | 4883 | /* If the gcc_input_filename has the same suffix specified |
74e4079a | 4884 | for the %g, %u, or %U, and -save-temps is specified, |
4885 | we could end up using that file as an intermediate | |
4886 | thus clobbering the user's source file (.e.g., | |
4887 | gcc -save-temps foo.s would clobber foo.s with the | |
4888 | output of cpp0). So check for this condition and | |
4889 | generate a temp file as the intermediate. */ | |
3cfec666 | 4890 | |
74e4079a | 4891 | if (save_temps_flag) |
4892 | { | |
5d1b319b | 4893 | char *tmp; |
cc92bc82 | 4894 | temp_filename_length = basename_length + suffix_length + 1; |
4895 | tmp = (char *) alloca (temp_filename_length); | |
4896 | memcpy (tmp, input_basename, basename_length); | |
4897 | memcpy (tmp + basename_length, suffix, suffix_length); | |
4898 | tmp[basename_length + suffix_length] = '\0'; | |
5d1b319b | 4899 | temp_filename = tmp; |
cc92bc82 | 4900 | |
82715bcd | 4901 | if (filename_cmp (temp_filename, gcc_input_filename) != 0) |
74e4079a | 4902 | { |
030ec15c | 4903 | #ifndef HOST_LACKS_INODE_NUMBERS |
952f0048 | 4904 | struct stat st_temp; |
3cfec666 | 4905 | |
952f0048 | 4906 | /* Note, set_input() resets input_stat_set to 0. */ |
4907 | if (input_stat_set == 0) | |
4908 | { | |
460b8bb3 | 4909 | input_stat_set = stat (gcc_input_filename, |
4910 | &input_stat); | |
952f0048 | 4911 | if (input_stat_set >= 0) |
4912 | input_stat_set = 1; | |
4913 | } | |
3cfec666 | 4914 | |
460b8bb3 | 4915 | /* If we have the stat for the gcc_input_filename |
952f0048 | 4916 | and we can do the stat for the temp_filename |
4917 | then the they could still refer to the same | |
4918 | file if st_dev/st_ino's are the same. */ | |
74e4079a | 4919 | if (input_stat_set != 1 |
4920 | || stat (temp_filename, &st_temp) < 0 | |
4921 | || input_stat.st_dev != st_temp.st_dev | |
4922 | || input_stat.st_ino != st_temp.st_ino) | |
030ec15c | 4923 | #else |
4924 | /* Just compare canonical pathnames. */ | |
460b8bb3 | 4925 | char* input_realname = lrealpath (gcc_input_filename); |
030ec15c | 4926 | char* temp_realname = lrealpath (temp_filename); |
82715bcd | 4927 | bool files_differ = filename_cmp (input_realname, temp_realname); |
030ec15c | 4928 | free (input_realname); |
4929 | free (temp_realname); | |
2f2c6aee | 4930 | if (files_differ) |
030ec15c | 4931 | #endif |
3cfec666 | 4932 | { |
74e4079a | 4933 | temp_filename = save_string (temp_filename, |
4934 | temp_filename_length + 1); | |
4935 | obstack_grow (&obstack, temp_filename, | |
952f0048 | 4936 | temp_filename_length); |
74e4079a | 4937 | arg_going = 1; |
03b358c6 | 4938 | delete_this_arg = 0; |
74e4079a | 4939 | break; |
4940 | } | |
4941 | } | |
4942 | } | |
4576c73f | 4943 | |
4944 | /* See if we already have an association of %g/%u/%U and | |
4945 | suffix. */ | |
4946 | for (t = temp_names; t; t = t->next) | |
c78c5ee7 | 4947 | if (t->length == suffix_length |
4948 | && strncmp (t->suffix, suffix, suffix_length) == 0 | |
5f6af493 | 4949 | && t->unique == (c == 'u' || c == 'U' || c == 'j')) |
4576c73f | 4950 | break; |
4951 | ||
d362e897 | 4952 | /* Make a new association if needed. %u and %j |
4953 | require one. */ | |
655a58fa | 4954 | if (t == 0 || c == 'u' || c == 'j') |
4576c73f | 4955 | { |
4956 | if (t == 0) | |
4957 | { | |
25a1c410 | 4958 | t = XNEW (struct temp_name); |
4576c73f | 4959 | t->next = temp_names; |
4960 | temp_names = t; | |
4961 | } | |
c78c5ee7 | 4962 | t->length = suffix_length; |
d362e897 | 4963 | if (saved_suffix) |
4964 | { | |
4965 | t->suffix = saved_suffix; | |
4966 | saved_suffix = NULL; | |
4967 | } | |
4968 | else | |
4969 | t->suffix = save_string (suffix, suffix_length); | |
5f6af493 | 4970 | t->unique = (c == 'u' || c == 'U' || c == 'j'); |
c78c5ee7 | 4971 | temp_filename = make_temp_file (t->suffix); |
3441e5dd | 4972 | temp_filename_length = strlen (temp_filename); |
4576c73f | 4973 | t->filename = temp_filename; |
4974 | t->filename_length = temp_filename_length; | |
4975 | } | |
4976 | ||
dd045aee | 4977 | free (saved_suffix); |
2c2aaf10 | 4978 | |
4576c73f | 4979 | obstack_grow (&obstack, t->filename, t->filename_length); |
e2a5805f | 4980 | delete_this_arg = 1; |
d7a9644e | 4981 | } |
4982 | arg_going = 1; | |
4983 | break; | |
4984 | ||
4985 | case 'i': | |
40109983 | 4986 | if (combine_inputs) |
4987 | { | |
46782931 | 4988 | if (at_file_supplied) |
4989 | { | |
4990 | /* We are going to expand `%i' to `@FILE', where FILE | |
4991 | is a newly-created temporary filename. The filenames | |
4992 | that would usually be expanded in place of %o will be | |
4993 | written to the temporary file. */ | |
4994 | char **argv; | |
4995 | int n_files = 0; | |
4996 | int j; | |
4997 | ||
4998 | for (i = 0; i < n_infiles; i++) | |
4999 | if (compile_input_file_p (&infiles[i])) | |
5000 | n_files++; | |
5001 | ||
5002 | argv = (char **) alloca (sizeof (char *) * (n_files + 1)); | |
5003 | ||
5004 | /* Copy the strings over. */ | |
5005 | for (i = 0, j = 0; i < n_infiles; i++) | |
5006 | if (compile_input_file_p (&infiles[i])) | |
5007 | { | |
5008 | argv[j] = CONST_CAST (char *, infiles[i].name); | |
5009 | infiles[i].compiled = true; | |
5010 | j++; | |
5011 | } | |
5012 | argv[j] = NULL; | |
5013 | ||
5014 | create_at_file (argv); | |
5015 | } | |
5016 | else | |
5017 | for (i = 0; (int) i < n_infiles; i++) | |
5018 | if (compile_input_file_p (&infiles[i])) | |
dc1dd09b | 5019 | { |
5020 | store_arg (infiles[i].name, 0, 0); | |
5021 | infiles[i].compiled = true; | |
5022 | } | |
40109983 | 5023 | } |
5024 | else | |
5025 | { | |
460b8bb3 | 5026 | obstack_grow (&obstack, gcc_input_filename, |
5027 | input_filename_length); | |
40109983 | 5028 | arg_going = 1; |
5029 | } | |
d7a9644e | 5030 | break; |
5031 | ||
bfef3e2f | 5032 | case 'I': |
524c2193 | 5033 | { |
067277c3 | 5034 | struct spec_path_info info; |
524c2193 | 5035 | |
72779020 | 5036 | if (multilib_dir) |
5037 | { | |
5038 | do_spec_1 ("-imultilib", 1, NULL); | |
5039 | /* Make this a separate argument. */ | |
5040 | do_spec_1 (" ", 0, NULL); | |
5041 | do_spec_1 (multilib_dir, 1, NULL); | |
5042 | do_spec_1 (" ", 0, NULL); | |
5043 | } | |
5044 | ||
77adc39e | 5045 | if (multiarch_dir) |
5046 | { | |
5047 | do_spec_1 ("-imultiarch", 1, NULL); | |
5048 | /* Make this a separate argument. */ | |
5049 | do_spec_1 (" ", 0, NULL); | |
5050 | do_spec_1 (multiarch_dir, 1, NULL); | |
5051 | do_spec_1 (" ", 0, NULL); | |
5052 | } | |
5053 | ||
524c2193 | 5054 | if (gcc_exec_prefix) |
5055 | { | |
d946ea19 | 5056 | do_spec_1 ("-iprefix", 1, NULL); |
524c2193 | 5057 | /* Make this a separate argument. */ |
d946ea19 | 5058 | do_spec_1 (" ", 0, NULL); |
5059 | do_spec_1 (gcc_exec_prefix, 1, NULL); | |
5060 | do_spec_1 (" ", 0, NULL); | |
524c2193 | 5061 | } |
5062 | ||
4ea70922 | 5063 | if (target_system_root_changed || |
5064 | (target_system_root && target_sysroot_hdrs_suffix)) | |
17acc97a | 5065 | { |
5066 | do_spec_1 ("-isysroot", 1, NULL); | |
5067 | /* Make this a separate argument. */ | |
5068 | do_spec_1 (" ", 0, NULL); | |
5069 | do_spec_1 (target_system_root, 1, NULL); | |
4ea70922 | 5070 | if (target_sysroot_hdrs_suffix) |
5071 | do_spec_1 (target_sysroot_hdrs_suffix, 1, NULL); | |
17acc97a | 5072 | do_spec_1 (" ", 0, NULL); |
5073 | } | |
5074 | ||
067277c3 | 5075 | info.option = "-isystem"; |
5076 | info.append = "include"; | |
5077 | info.append_len = strlen (info.append); | |
5078 | info.omit_relative = false; | |
5079 | info.separate_options = true; | |
5080 | ||
5081 | for_each_path (&include_prefixes, false, info.append_len, | |
5082 | spec_path, &info); | |
d3036f42 | 5083 | |
5084 | info.append = "include-fixed"; | |
6ea4242f | 5085 | if (*sysroot_hdrs_suffix_spec) |
5086 | info.append = concat (info.append, dir_separator_str, | |
5087 | multilib_dir, NULL); | |
d3036f42 | 5088 | info.append_len = strlen (info.append); |
5089 | for_each_path (&include_prefixes, false, info.append_len, | |
5090 | spec_path, &info); | |
524c2193 | 5091 | } |
bfef3e2f | 5092 | break; |
5093 | ||
d7a9644e | 5094 | case 'o': |
2b191381 | 5095 | { |
5096 | int max = n_infiles; | |
2b191381 | 5097 | max += lang_specific_extra_outfiles; |
cdf76fe2 | 5098 | |
c159e0b7 | 5099 | if (HAVE_GNU_LD && at_file_supplied) |
5100 | { | |
5101 | /* We are going to expand `%o' to `@FILE', where FILE | |
5102 | is a newly-created temporary filename. The filenames | |
5103 | that would usually be expanded in place of %o will be | |
5104 | written to the temporary file. */ | |
5105 | ||
c159e0b7 | 5106 | char **argv; |
46782931 | 5107 | int n_files, j; |
c159e0b7 | 5108 | |
5109 | /* Convert OUTFILES into a form suitable for writeargv. */ | |
5110 | ||
5111 | /* Determine how many are non-NULL. */ | |
5112 | for (n_files = 0, i = 0; i < max; i++) | |
5113 | n_files += outfiles[i] != NULL; | |
5114 | ||
25a1c410 | 5115 | argv = (char **) alloca (sizeof (char *) * (n_files + 1)); |
c159e0b7 | 5116 | |
5117 | /* Copy the strings over. */ | |
5118 | for (i = 0, j = 0; i < max; i++) | |
5119 | if (outfiles[i]) | |
5120 | { | |
e47a6f81 | 5121 | argv[j] = CONST_CAST (char *, outfiles[i]); |
c159e0b7 | 5122 | j++; |
5123 | } | |
5124 | argv[j] = NULL; | |
5125 | ||
46782931 | 5126 | create_at_file (argv); |
c159e0b7 | 5127 | } |
5128 | else | |
5129 | for (i = 0; i < max; i++) | |
5130 | if (outfiles[i]) | |
5131 | store_arg (outfiles[i], 0, 0); | |
2b191381 | 5132 | break; |
5133 | } | |
d7a9644e | 5134 | |
499a0933 | 5135 | case 'O': |
10f57222 | 5136 | obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX)); |
499a0933 | 5137 | arg_going = 1; |
5138 | break; | |
5139 | ||
d7a9644e | 5140 | case 's': |
5141 | this_is_library_file = 1; | |
5142 | break; | |
5143 | ||
d7ee9e9b | 5144 | case 'T': |
5145 | this_is_linker_script = 1; | |
5146 | break; | |
5147 | ||
573aba85 | 5148 | case 'V': |
5149 | outfiles[input_file_number] = NULL; | |
5150 | break; | |
5151 | ||
d7a9644e | 5152 | case 'w': |
5153 | this_is_output_file = 1; | |
5154 | break; | |
5155 | ||
5156 | case 'W': | |
5157 | { | |
f1f41a6c | 5158 | unsigned int cur_index = argbuf.length (); |
d7a9644e | 5159 | /* Handle the {...} following the %W. */ |
5160 | if (*p != '{') | |
a8c464ac | 5161 | fatal_error ("spec %qs has invalid %<%%W%c%>", spec, *p); |
d7a9644e | 5162 | p = handle_braces (p + 1); |
5163 | if (p == 0) | |
5164 | return -1; | |
558cc3be | 5165 | end_going_arg (); |
d7a9644e | 5166 | /* If any args were output, mark the last one for deletion |
5167 | on failure. */ | |
f1f41a6c | 5168 | if (argbuf.length () != cur_index) |
5169 | record_temp_file (argbuf.last (), 0, 1); | |
d7a9644e | 5170 | break; |
5171 | } | |
5172 | ||
5173 | /* %x{OPTION} records OPTION for %X to output. */ | |
5174 | case 'x': | |
5175 | { | |
e40d43cc | 5176 | const char *p1 = p; |
d7a9644e | 5177 | char *string; |
74c33122 | 5178 | char *opt; |
5179 | unsigned ix; | |
d7a9644e | 5180 | |
5181 | /* Skip past the option value and make a copy. */ | |
5182 | if (*p != '{') | |
a8c464ac | 5183 | fatal_error ("spec %qs has invalid %<%%x%c%>", spec, *p); |
d7a9644e | 5184 | while (*p++ != '}') |
5185 | ; | |
5186 | string = save_string (p1 + 1, p - p1 - 2); | |
5187 | ||
5188 | /* See if we already recorded this option. */ | |
f1f41a6c | 5189 | FOR_EACH_VEC_ELT (linker_options, ix, opt) |
74c33122 | 5190 | if (! strcmp (string, opt)) |
d7a9644e | 5191 | { |
5192 | free (string); | |
5193 | return 0; | |
5194 | } | |
5195 | ||
5196 | /* This option is new; add it. */ | |
8ace789a | 5197 | add_linker_option (string, strlen (string)); |
ce0fdb91 | 5198 | free (string); |
d7a9644e | 5199 | } |
5200 | break; | |
5201 | ||
fcdc45aa | 5202 | /* Dump out the options accumulated previously using %x. */ |
d7a9644e | 5203 | case 'X': |
74c33122 | 5204 | do_specs_vec (linker_options); |
d7a9644e | 5205 | break; |
5206 | ||
69587571 | 5207 | /* Dump out the options accumulated previously using -Wa,. */ |
5208 | case 'Y': | |
74c33122 | 5209 | do_specs_vec (assembler_options); |
69587571 | 5210 | break; |
5211 | ||
391d9b6e | 5212 | /* Dump out the options accumulated previously using -Wp,. */ |
5213 | case 'Z': | |
74c33122 | 5214 | do_specs_vec (preprocessor_options); |
391d9b6e | 5215 | break; |
5216 | ||
d7a9644e | 5217 | /* Here are digits and numbers that just process |
5218 | a certain constant string as a spec. */ | |
5219 | ||
5220 | case '1': | |
d946ea19 | 5221 | value = do_spec_1 (cc1_spec, 0, NULL); |
fd8c18f0 | 5222 | if (value != 0) |
5223 | return value; | |
d7a9644e | 5224 | break; |
5225 | ||
5226 | case '2': | |
d946ea19 | 5227 | value = do_spec_1 (cc1plus_spec, 0, NULL); |
fd8c18f0 | 5228 | if (value != 0) |
5229 | return value; | |
d7a9644e | 5230 | break; |
5231 | ||
5232 | case 'a': | |
d946ea19 | 5233 | value = do_spec_1 (asm_spec, 0, NULL); |
fd8c18f0 | 5234 | if (value != 0) |
5235 | return value; | |
d7a9644e | 5236 | break; |
5237 | ||
5238 | case 'A': | |
d946ea19 | 5239 | value = do_spec_1 (asm_final_spec, 0, NULL); |
fd8c18f0 | 5240 | if (value != 0) |
5241 | return value; | |
d7a9644e | 5242 | break; |
5243 | ||
d7a9644e | 5244 | case 'C': |
96842e40 | 5245 | { |
0d95286f | 5246 | const char *const spec |
3cfec666 | 5247 | = (input_file_compiler->cpp_spec |
5248 | ? input_file_compiler->cpp_spec | |
96842e40 | 5249 | : cpp_spec); |
d946ea19 | 5250 | value = do_spec_1 (spec, 0, NULL); |
96842e40 | 5251 | if (value != 0) |
5252 | return value; | |
5253 | } | |
d7a9644e | 5254 | break; |
5255 | ||
5256 | case 'E': | |
d946ea19 | 5257 | value = do_spec_1 (endfile_spec, 0, NULL); |
fd8c18f0 | 5258 | if (value != 0) |
5259 | return value; | |
d7a9644e | 5260 | break; |
5261 | ||
5262 | case 'l': | |
d946ea19 | 5263 | value = do_spec_1 (link_spec, 0, NULL); |
fd8c18f0 | 5264 | if (value != 0) |
5265 | return value; | |
d7a9644e | 5266 | break; |
5267 | ||
5268 | case 'L': | |
d946ea19 | 5269 | value = do_spec_1 (lib_spec, 0, NULL); |
fd8c18f0 | 5270 | if (value != 0) |
5271 | return value; | |
d7a9644e | 5272 | break; |
5273 | ||
c93570ad | 5274 | case 'M': |
5275 | if (multilib_os_dir == NULL) | |
5276 | obstack_1grow (&obstack, '.'); | |
5277 | else | |
5278 | obstack_grow (&obstack, multilib_os_dir, | |
5279 | strlen (multilib_os_dir)); | |
5280 | break; | |
5281 | ||
b7c87ff2 | 5282 | case 'G': |
d946ea19 | 5283 | value = do_spec_1 (libgcc_spec, 0, NULL); |
b7c87ff2 | 5284 | if (value != 0) |
5285 | return value; | |
5286 | break; | |
5287 | ||
805e22b2 | 5288 | case 'R': |
5289 | /* We assume there is a directory | |
5290 | separator at the end of this string. */ | |
5291 | if (target_system_root) | |
952f0048 | 5292 | { |
5293 | obstack_grow (&obstack, target_system_root, | |
4ea70922 | 5294 | strlen (target_system_root)); |
5295 | if (target_sysroot_suffix) | |
952f0048 | 5296 | obstack_grow (&obstack, target_sysroot_suffix, |
4ea70922 | 5297 | strlen (target_sysroot_suffix)); |
5298 | } | |
805e22b2 | 5299 | break; |
5300 | ||
d7a9644e | 5301 | case 'S': |
d946ea19 | 5302 | value = do_spec_1 (startfile_spec, 0, NULL); |
fd8c18f0 | 5303 | if (value != 0) |
5304 | return value; | |
d7a9644e | 5305 | break; |
5306 | ||
5307 | /* Here we define characters other than letters and digits. */ | |
5308 | ||
5309 | case '{': | |
5310 | p = handle_braces (p); | |
5311 | if (p == 0) | |
5312 | return -1; | |
5313 | break; | |
5314 | ||
c21b3276 | 5315 | case ':': |
9e46467d | 5316 | p = handle_spec_function (p, NULL); |
c21b3276 | 5317 | if (p == 0) |
5318 | return -1; | |
5319 | break; | |
5320 | ||
d7a9644e | 5321 | case '%': |
5322 | obstack_1grow (&obstack, '%'); | |
5323 | break; | |
5324 | ||
3cfec666 | 5325 | case '.': |
5326 | { | |
5327 | unsigned len = 0; | |
bdbd5352 | 5328 | |
3cfec666 | 5329 | while (p[len] && p[len] != ' ' && p[len] != '%') |
5330 | len++; | |
5331 | suffix_subst = save_string (p - 1, len + 1); | |
5332 | p += len; | |
5333 | } | |
bdbd5352 | 5334 | break; |
3cfec666 | 5335 | |
805e22b2 | 5336 | /* Henceforth ignore the option(s) matching the pattern |
5337 | after the %<. */ | |
5338 | case '<': | |
5c1421d7 | 5339 | case '>': |
805e22b2 | 5340 | { |
5341 | unsigned len = 0; | |
5342 | int have_wildcard = 0; | |
5343 | int i; | |
5c1421d7 | 5344 | int switch_option; |
5345 | ||
5346 | if (c == '>') | |
5347 | switch_option = SWITCH_IGNORE | SWITCH_KEEP_FOR_GCC; | |
5348 | else | |
5349 | switch_option = SWITCH_IGNORE; | |
805e22b2 | 5350 | |
5351 | while (p[len] && p[len] != ' ' && p[len] != '\t') | |
5352 | len++; | |
5353 | ||
5354 | if (p[len-1] == '*') | |
5355 | have_wildcard = 1; | |
5356 | ||
5357 | for (i = 0; i < n_switches; i++) | |
5358 | if (!strncmp (switches[i].part1, p, len - have_wildcard) | |
5359 | && (have_wildcard || switches[i].part1[len] == '\0')) | |
5360 | { | |
5c1421d7 | 5361 | switches[i].live_cond |= switch_option; |
556cfe53 | 5362 | /* User switch be validated from validate_all_switches. |
5363 | when the definition is seen from the spec file. | |
5364 | If not defined anywhere, will be rejected. */ | |
5365 | if (switches[i].known) | |
5366 | switches[i].validated = true; | |
805e22b2 | 5367 | } |
5368 | ||
5369 | p += len; | |
5370 | } | |
5371 | break; | |
5372 | ||
d7a9644e | 5373 | case '*': |
d4ea3b1f | 5374 | if (soft_matched_part) |
5375 | { | |
fde5bd5c | 5376 | if (soft_matched_part[0]) |
5377 | do_spec_1 (soft_matched_part, 1, NULL); | |
d946ea19 | 5378 | do_spec_1 (" ", 0, NULL); |
d4ea3b1f | 5379 | } |
5380 | else | |
5381 | /* Catch the case where a spec string contains something like | |
0c6d8c36 | 5382 | '%{foo:%*}'. i.e. there is no * in the pattern on the left |
d4ea3b1f | 5383 | hand side of the :. */ |
a8c464ac | 5384 | error ("spec failure: %<%%*%> has not been initialized by pattern match"); |
d7a9644e | 5385 | break; |
5386 | ||
5387 | /* Process a string found as the value of a spec given by name. | |
5388 | This feature allows individual machine descriptions | |
88483769 | 5389 | to add and use their own specs. */ |
d7a9644e | 5390 | case '(': |
d7a9644e | 5391 | { |
e40d43cc | 5392 | const char *name = p; |
d7a9644e | 5393 | struct spec_list *sl; |
5394 | int len; | |
5395 | ||
5396 | /* The string after the S/P is the name of a spec that is to be | |
a92771b8 | 5397 | processed. */ |
88483769 | 5398 | while (*p && *p != ')') |
d7a9644e | 5399 | p++; |
5400 | ||
d4ea3b1f | 5401 | /* See if it's in the list. */ |
d7a9644e | 5402 | for (len = p - name, sl = specs; sl; sl = sl->next) |
988c0ffe | 5403 | if (sl->name_len == len && !strncmp (sl->name, name, len)) |
d7a9644e | 5404 | { |
988c0ffe | 5405 | name = *(sl->ptr_spec); |
4582d741 | 5406 | #ifdef DEBUG_SPECS |
88483769 | 5407 | fnotice (stderr, "Processing spec (%s), which is '%s'\n", |
5408 | sl->name, name); | |
4582d741 | 5409 | #endif |
d7a9644e | 5410 | break; |
5411 | } | |
5412 | ||
5413 | if (sl) | |
5414 | { | |
88483769 | 5415 | value = do_spec_1 (name, 0, NULL); |
5416 | if (value != 0) | |
5417 | return value; | |
d7a9644e | 5418 | } |
8894538a | 5419 | |
88483769 | 5420 | /* Discard the closing paren. */ |
8894538a | 5421 | if (*p) |
5422 | p++; | |
d7a9644e | 5423 | } |
5424 | break; | |
5425 | ||
5426 | default: | |
a8c464ac | 5427 | error ("spec failure: unrecognized spec option %qc", c); |
d4ea3b1f | 5428 | break; |
d7a9644e | 5429 | } |
5430 | break; | |
5431 | ||
5432 | case '\\': | |
5433 | /* Backslash: treat next character as ordinary. */ | |
5434 | c = *p++; | |
5435 | ||
b4b174c3 | 5436 | /* Fall through. */ |
d7a9644e | 5437 | default: |
5438 | /* Ordinary character: put it into the current argument. */ | |
5439 | obstack_1grow (&obstack, c); | |
5440 | arg_going = 1; | |
5441 | } | |
5442 | ||
c21b3276 | 5443 | /* End of string. If we are processing a spec function, we need to |
5444 | end any pending argument. */ | |
558cc3be | 5445 | if (processing_spec_function) |
5446 | end_going_arg (); | |
c21b3276 | 5447 | |
026f2c7a | 5448 | return 0; |
d7a9644e | 5449 | } |
5450 | ||
c21b3276 | 5451 | /* Look up a spec function. */ |
5452 | ||
5453 | static const struct spec_function * | |
952f0048 | 5454 | lookup_spec_function (const char *name) |
c21b3276 | 5455 | { |
c21b3276 | 5456 | const struct spec_function *sf; |
c21b3276 | 5457 | |
0bb0fa6a | 5458 | for (sf = static_spec_functions; sf->name != NULL; sf++) |
5459 | if (strcmp (sf->name, name) == 0) | |
5460 | return sf; | |
c21b3276 | 5461 | |
5462 | return NULL; | |
5463 | } | |
5464 | ||
5465 | /* Evaluate a spec function. */ | |
5466 | ||
5467 | static const char * | |
952f0048 | 5468 | eval_spec_function (const char *func, const char *args) |
c21b3276 | 5469 | { |
5470 | const struct spec_function *sf; | |
5471 | const char *funcval; | |
5472 | ||
5473 | /* Saved spec processing context. */ | |
f1f41a6c | 5474 | vec<const_char_p> save_argbuf; |
c21b3276 | 5475 | |
5476 | int save_arg_going; | |
5477 | int save_delete_this_arg; | |
5478 | int save_this_is_output_file; | |
5479 | int save_this_is_library_file; | |
5480 | int save_input_from_pipe; | |
d7ee9e9b | 5481 | int save_this_is_linker_script; |
c21b3276 | 5482 | const char *save_suffix_subst; |
5483 | ||
e2efe9af | 5484 | int save_growing_size; |
5485 | void *save_growing_value; | |
c21b3276 | 5486 | |
5487 | sf = lookup_spec_function (func); | |
5488 | if (sf == NULL) | |
a8c464ac | 5489 | fatal_error ("unknown spec function %qs", func); |
c21b3276 | 5490 | |
5491 | /* Push the spec processing context. */ | |
c21b3276 | 5492 | save_argbuf = argbuf; |
5493 | ||
5494 | save_arg_going = arg_going; | |
5495 | save_delete_this_arg = delete_this_arg; | |
5496 | save_this_is_output_file = this_is_output_file; | |
5497 | save_this_is_library_file = this_is_library_file; | |
d7ee9e9b | 5498 | save_this_is_linker_script = this_is_linker_script; |
c21b3276 | 5499 | save_input_from_pipe = input_from_pipe; |
5500 | save_suffix_subst = suffix_subst; | |
5501 | ||
e2efe9af | 5502 | /* If we have some object growing now, finalize it so the args and function |
5503 | eval proceed from a cleared context. This is needed to prevent the first | |
5504 | constructed arg from mistakenly including the growing value. We'll push | |
5505 | this value back on the obstack once the function evaluation is done, to | |
5506 | restore a consistent processing context for our caller. This is fine as | |
5507 | the address of growing objects isn't guaranteed to remain stable until | |
5508 | they are finalized, and we expect this situation to be rare enough for | |
5509 | the extra copy not to be an issue. */ | |
5510 | save_growing_size = obstack_object_size (&obstack); | |
5511 | if (save_growing_size > 0) | |
5512 | save_growing_value = obstack_finish (&obstack); | |
5513 | ||
c21b3276 | 5514 | /* Create a new spec processing context, and build the function |
5515 | arguments. */ | |
5516 | ||
5517 | alloc_args (); | |
5518 | if (do_spec_2 (args) < 0) | |
a8c464ac | 5519 | fatal_error ("error in args to spec function %qs", func); |
c21b3276 | 5520 | |
5521 | /* argbuf_index is an index for the next argument to be inserted, and | |
5522 | so contains the count of the args already inserted. */ | |
5523 | ||
f1f41a6c | 5524 | funcval = (*sf->func) (argbuf.length (), |
5525 | argbuf.address ()); | |
c21b3276 | 5526 | |
5527 | /* Pop the spec processing context. */ | |
f1f41a6c | 5528 | argbuf.release (); |
c21b3276 | 5529 | argbuf = save_argbuf; |
5530 | ||
5531 | arg_going = save_arg_going; | |
5532 | delete_this_arg = save_delete_this_arg; | |
5533 | this_is_output_file = save_this_is_output_file; | |
5534 | this_is_library_file = save_this_is_library_file; | |
d7ee9e9b | 5535 | this_is_linker_script = save_this_is_linker_script; |
c21b3276 | 5536 | input_from_pipe = save_input_from_pipe; |
5537 | suffix_subst = save_suffix_subst; | |
5538 | ||
e2efe9af | 5539 | if (save_growing_size > 0) |
5540 | obstack_grow (&obstack, save_growing_value, save_growing_size); | |
5541 | ||
c21b3276 | 5542 | return funcval; |
5543 | } | |
5544 | ||
5545 | /* Handle a spec function call of the form: | |
5546 | ||
5547 | %:function(args) | |
5548 | ||
5549 | ARGS is processed as a spec in a separate context and split into an | |
5550 | argument vector in the normal fashion. The function returns a string | |
5551 | containing a spec which we then process in the caller's context, or | |
9e46467d | 5552 | NULL if no processing is required. |
5553 | ||
5554 | If RETVAL_NONNULL is not NULL, then store a bool whether function | |
5555 | returned non-NULL. */ | |
c21b3276 | 5556 | |
5557 | static const char * | |
9e46467d | 5558 | handle_spec_function (const char *p, bool *retval_nonnull) |
c21b3276 | 5559 | { |
5560 | char *func, *args; | |
5561 | const char *endp, *funcval; | |
5562 | int count; | |
5563 | ||
5564 | processing_spec_function++; | |
5565 | ||
5566 | /* Get the function name. */ | |
5567 | for (endp = p; *endp != '\0'; endp++) | |
5568 | { | |
5569 | if (*endp == '(') /* ) */ | |
5570 | break; | |
5571 | /* Only allow [A-Za-z0-9], -, and _ in function names. */ | |
5572 | if (!ISALNUM (*endp) && !(*endp == '-' || *endp == '_')) | |
a922df2e | 5573 | fatal_error ("malformed spec function name"); |
c21b3276 | 5574 | } |
5575 | if (*endp != '(') /* ) */ | |
a922df2e | 5576 | fatal_error ("no arguments for spec function"); |
c21b3276 | 5577 | func = save_string (p, endp - p); |
5578 | p = ++endp; | |
5579 | ||
5580 | /* Get the arguments. */ | |
5581 | for (count = 0; *endp != '\0'; endp++) | |
5582 | { | |
5583 | /* ( */ | |
5584 | if (*endp == ')') | |
5585 | { | |
5586 | if (count == 0) | |
5587 | break; | |
5588 | count--; | |
5589 | } | |
5590 | else if (*endp == '(') /* ) */ | |
5591 | count++; | |
5592 | } | |
5593 | /* ( */ | |
5594 | if (*endp != ')') | |
a922df2e | 5595 | fatal_error ("malformed spec function arguments"); |
c21b3276 | 5596 | args = save_string (p, endp - p); |
5597 | p = ++endp; | |
5598 | ||
5599 | /* p now points to just past the end of the spec function expression. */ | |
5600 | ||
5601 | funcval = eval_spec_function (func, args); | |
5602 | if (funcval != NULL && do_spec_1 (funcval, 0, NULL) < 0) | |
5603 | p = NULL; | |
9e46467d | 5604 | if (retval_nonnull) |
5605 | *retval_nonnull = funcval != NULL; | |
c21b3276 | 5606 | |
5607 | free (func); | |
5608 | free (args); | |
5609 | ||
5610 | processing_spec_function--; | |
5611 | ||
5612 | return p; | |
5613 | } | |
5614 | ||
805e22b2 | 5615 | /* Inline subroutine of handle_braces. Returns true if the current |
5616 | input suffix matches the atom bracketed by ATOM and END_ATOM. */ | |
5617 | static inline bool | |
952f0048 | 5618 | input_suffix_matches (const char *atom, const char *end_atom) |
805e22b2 | 5619 | { |
5620 | return (input_suffix | |
5621 | && !strncmp (input_suffix, atom, end_atom - atom) | |
5622 | && input_suffix[end_atom - atom] == '\0'); | |
5623 | } | |
d7a9644e | 5624 | |
90e35d1a | 5625 | /* Subroutine of handle_braces. Returns true if the current |
5626 | input file's spec name matches the atom bracketed by ATOM and END_ATOM. */ | |
5627 | static bool | |
5628 | input_spec_matches (const char *atom, const char *end_atom) | |
5629 | { | |
5630 | return (input_file_compiler | |
5631 | && input_file_compiler->suffix | |
5632 | && input_file_compiler->suffix[0] != '\0' | |
5633 | && !strncmp (input_file_compiler->suffix + 1, atom, | |
5634 | end_atom - atom) | |
5635 | && input_file_compiler->suffix[end_atom - atom + 1] == '\0'); | |
5636 | } | |
5637 | ||
1e8e9920 | 5638 | /* Subroutine of handle_braces. Returns true if a switch |
805e22b2 | 5639 | matching the atom bracketed by ATOM and END_ATOM appeared on the |
5640 | command line. */ | |
1e8e9920 | 5641 | static bool |
952f0048 | 5642 | switch_matches (const char *atom, const char *end_atom, int starred) |
d7a9644e | 5643 | { |
805e22b2 | 5644 | int i; |
5645 | int len = end_atom - atom; | |
5646 | int plen = starred ? len : -1; | |
d7a9644e | 5647 | |
805e22b2 | 5648 | for (i = 0; i < n_switches; i++) |
5649 | if (!strncmp (switches[i].part1, atom, len) | |
5650 | && (starred || switches[i].part1[len] == '\0') | |
5651 | && check_live_switch (i, plen)) | |
5652 | return true; | |
4a10d696 | 5653 | |
cbe25b89 | 5654 | /* Check if a switch with separated form matching the atom. |
5655 | We check -D and -U switches. */ | |
5656 | else if (switches[i].args != 0) | |
5657 | { | |
5658 | if ((*switches[i].part1 == 'D' || *switches[i].part1 == 'U') | |
5659 | && *switches[i].part1 == atom[0]) | |
5660 | { | |
5661 | if (!strncmp (switches[i].args[0], &atom[1], len - 1) | |
5662 | && (starred || (switches[i].part1[1] == '\0' | |
5663 | && switches[i].args[0][len - 1] == '\0')) | |
5664 | && check_live_switch (i, (starred ? 1 : -1))) | |
5665 | return true; | |
5666 | } | |
5667 | } | |
5668 | ||
805e22b2 | 5669 | return false; |
5670 | } | |
d7a9644e | 5671 | |
805e22b2 | 5672 | /* Inline subroutine of handle_braces. Mark all of the switches which |
5673 | match ATOM (extends to END_ATOM; STARRED indicates whether there | |
5674 | was a star after the atom) for later processing. */ | |
5675 | static inline void | |
952f0048 | 5676 | mark_matching_switches (const char *atom, const char *end_atom, int starred) |
805e22b2 | 5677 | { |
5678 | int i; | |
5679 | int len = end_atom - atom; | |
5680 | int plen = starred ? len : -1; | |
5681 | ||
5682 | for (i = 0; i < n_switches; i++) | |
5683 | if (!strncmp (switches[i].part1, atom, len) | |
5684 | && (starred || switches[i].part1[len] == '\0') | |
5685 | && check_live_switch (i, plen)) | |
5686 | switches[i].ordering = 1; | |
5687 | } | |
ae70654c | 5688 | |
805e22b2 | 5689 | /* Inline subroutine of handle_braces. Process all the currently |
5690 | marked switches through give_switch, and clear the marks. */ | |
5691 | static inline void | |
952f0048 | 5692 | process_marked_switches (void) |
805e22b2 | 5693 | { |
5694 | int i; | |
d7a9644e | 5695 | |
805e22b2 | 5696 | for (i = 0; i < n_switches; i++) |
5697 | if (switches[i].ordering == 1) | |
5698 | { | |
5699 | switches[i].ordering = 0; | |
5700 | give_switch (i, 0); | |
5701 | } | |
5702 | } | |
d7a9644e | 5703 | |
805e22b2 | 5704 | /* Handle a %{ ... } construct. P points just inside the leading {. |
5705 | Returns a pointer one past the end of the brace block, or 0 | |
5706 | if we call do_spec_1 and that returns -1. */ | |
d7a9644e | 5707 | |
805e22b2 | 5708 | static const char * |
952f0048 | 5709 | handle_braces (const char *p) |
805e22b2 | 5710 | { |
5711 | const char *atom, *end_atom; | |
5712 | const char *d_atom = NULL, *d_end_atom = NULL; | |
5e8f3c31 | 5713 | const char *orig = p; |
4a10d696 | 5714 | |
805e22b2 | 5715 | bool a_is_suffix; |
90e35d1a | 5716 | bool a_is_spectype; |
805e22b2 | 5717 | bool a_is_starred; |
5718 | bool a_is_negated; | |
5719 | bool a_matched; | |
ae70654c | 5720 | |
805e22b2 | 5721 | bool a_must_be_last = false; |
5722 | bool ordered_set = false; | |
5723 | bool disjunct_set = false; | |
5724 | bool disj_matched = false; | |
5725 | bool disj_starred = true; | |
5726 | bool n_way_choice = false; | |
5727 | bool n_way_matched = false; | |
5728 | ||
5729 | #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0) | |
ae70654c | 5730 | |
805e22b2 | 5731 | do |
d7a9644e | 5732 | { |
805e22b2 | 5733 | if (a_must_be_last) |
5e8f3c31 | 5734 | goto invalid; |
ae70654c | 5735 | |
805e22b2 | 5736 | /* Scan one "atom" (S in the description above of %{}, possibly |
90e35d1a | 5737 | with '!', '.', '@', ',', or '*' modifiers). */ |
5738 | a_matched = false; | |
5739 | a_is_suffix = false; | |
5740 | a_is_starred = false; | |
5741 | a_is_negated = false; | |
5742 | a_is_spectype = false; | |
2c815aff | 5743 | |
805e22b2 | 5744 | SKIP_WHITE(); |
5745 | if (*p == '!') | |
5746 | p++, a_is_negated = true; | |
d7a9644e | 5747 | |
805e22b2 | 5748 | SKIP_WHITE(); |
9e46467d | 5749 | if (*p == '%' && p[1] == ':') |
5750 | { | |
5751 | atom = NULL; | |
5752 | end_atom = NULL; | |
5753 | p = handle_spec_function (p + 2, &a_matched); | |
5754 | } | |
5755 | else | |
5756 | { | |
5757 | if (*p == '.') | |
5758 | p++, a_is_suffix = true; | |
5759 | else if (*p == ',') | |
5760 | p++, a_is_spectype = true; | |
5761 | ||
5762 | atom = p; | |
5763 | while (ISIDNUM(*p) || *p == '-' || *p == '+' || *p == '=' | |
5764 | || *p == ',' || *p == '.' || *p == '@') | |
5765 | p++; | |
5766 | end_atom = p; | |
d7a9644e | 5767 | |
9e46467d | 5768 | if (*p == '*') |
5769 | p++, a_is_starred = 1; | |
5770 | } | |
e1478c0f | 5771 | |
805e22b2 | 5772 | SKIP_WHITE(); |
5e8f3c31 | 5773 | switch (*p) |
805e22b2 | 5774 | { |
5e8f3c31 | 5775 | case '&': case '}': |
805e22b2 | 5776 | /* Substitute the switch(es) indicated by the current atom. */ |
5777 | ordered_set = true; | |
5778 | if (disjunct_set || n_way_choice || a_is_negated || a_is_suffix | |
90e35d1a | 5779 | || a_is_spectype || atom == end_atom) |
5e8f3c31 | 5780 | goto invalid; |
d7a9644e | 5781 | |
805e22b2 | 5782 | mark_matching_switches (atom, end_atom, a_is_starred); |
5783 | ||
5784 | if (*p == '}') | |
5785 | process_marked_switches (); | |
5e8f3c31 | 5786 | break; |
5787 | ||
5788 | case '|': case ':': | |
805e22b2 | 5789 | /* Substitute some text if the current atom appears as a switch |
5790 | or suffix. */ | |
5791 | disjunct_set = true; | |
5792 | if (ordered_set) | |
5e8f3c31 | 5793 | goto invalid; |
d7a9644e | 5794 | |
9e46467d | 5795 | if (atom && atom == end_atom) |
d7a9644e | 5796 | { |
805e22b2 | 5797 | if (!n_way_choice || disj_matched || *p == '|' |
48e1416a | 5798 | || a_is_negated || a_is_suffix || a_is_spectype |
90e35d1a | 5799 | || a_is_starred) |
5e8f3c31 | 5800 | goto invalid; |
805e22b2 | 5801 | |
5802 | /* An empty term may appear as the last choice of an | |
5803 | N-way choice set; it means "otherwise". */ | |
5804 | a_must_be_last = true; | |
5805 | disj_matched = !n_way_matched; | |
5806 | disj_starred = false; | |
d7a9644e | 5807 | } |
805e22b2 | 5808 | else |
d7a9644e | 5809 | { |
90e35d1a | 5810 | if ((a_is_suffix || a_is_spectype) && a_is_starred) |
5811 | goto invalid; | |
d7ee9e9b | 5812 | |
90e35d1a | 5813 | if (!a_is_starred) |
5814 | disj_starred = false; | |
5815 | ||
5816 | /* Don't bother testing this atom if we already have a | |
5817 | match. */ | |
5818 | if (!disj_matched && !n_way_matched) | |
5819 | { | |
9e46467d | 5820 | if (atom == NULL) |
5821 | /* a_matched is already set by handle_spec_function. */; | |
5822 | else if (a_is_suffix) | |
90e35d1a | 5823 | a_matched = input_suffix_matches (atom, end_atom); |
5824 | else if (a_is_spectype) | |
5825 | a_matched = input_spec_matches (atom, end_atom); | |
5826 | else | |
5827 | a_matched = switch_matches (atom, end_atom, a_is_starred); | |
d7ee9e9b | 5828 | |
90e35d1a | 5829 | if (a_matched != a_is_negated) |
5830 | { | |
5831 | disj_matched = true; | |
5832 | d_atom = atom; | |
5833 | d_end_atom = end_atom; | |
5834 | } | |
5835 | } | |
d7a9644e | 5836 | } |
d7a9644e | 5837 | |
805e22b2 | 5838 | if (*p == ':') |
d7a9644e | 5839 | { |
805e22b2 | 5840 | /* Found the body, that is, the text to substitute if the |
5841 | current disjunction matches. */ | |
5842 | p = process_brace_body (p + 1, d_atom, d_end_atom, disj_starred, | |
5843 | disj_matched && !n_way_matched); | |
5844 | if (p == 0) | |
5845 | return 0; | |
d7a9644e | 5846 | |
805e22b2 | 5847 | /* If we have an N-way choice, reset state for the next |
5848 | disjunction. */ | |
5849 | if (*p == ';') | |
d7a9644e | 5850 | { |
805e22b2 | 5851 | n_way_choice = true; |
5852 | n_way_matched |= disj_matched; | |
5853 | disj_matched = false; | |
5854 | disj_starred = true; | |
5855 | d_atom = d_end_atom = NULL; | |
d7a9644e | 5856 | } |
5857 | } | |
5e8f3c31 | 5858 | break; |
5859 | ||
5860 | default: | |
5861 | goto invalid; | |
d7a9644e | 5862 | } |
805e22b2 | 5863 | } |
5864 | while (*p++ != '}'); | |
d7a9644e | 5865 | |
805e22b2 | 5866 | return p; |
2f2c6aee | 5867 | |
5e8f3c31 | 5868 | invalid: |
a8c464ac | 5869 | fatal_error ("braced spec %qs is invalid at %qc", orig, *p); |
2f2c6aee | 5870 | |
805e22b2 | 5871 | #undef SKIP_WHITE |
5872 | } | |
5873 | ||
5874 | /* Subroutine of handle_braces. Scan and process a brace substitution body | |
5875 | (X in the description of %{} syntax). P points one past the colon; | |
5876 | ATOM and END_ATOM bracket the first atom which was found to be true | |
5877 | (present) in the current disjunction; STARRED indicates whether all | |
5878 | the atoms in the current disjunction were starred (for syntax validation); | |
5879 | MATCHED indicates whether the disjunction matched or not, and therefore | |
5880 | whether or not the body is to be processed through do_spec_1 or just | |
5881 | skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1 | |
5882 | returns -1. */ | |
5883 | ||
5884 | static const char * | |
952f0048 | 5885 | process_brace_body (const char *p, const char *atom, const char *end_atom, |
5886 | int starred, int matched) | |
805e22b2 | 5887 | { |
5888 | const char *body, *end_body; | |
5889 | unsigned int nesting_level; | |
5890 | bool have_subst = false; | |
5891 | ||
5892 | /* Locate the closing } or ;, honoring nested braces. | |
5893 | Trim trailing whitespace. */ | |
5894 | body = p; | |
5895 | nesting_level = 1; | |
5896 | for (;;) | |
5897 | { | |
5898 | if (*p == '{') | |
5899 | nesting_level++; | |
5900 | else if (*p == '}') | |
d7a9644e | 5901 | { |
805e22b2 | 5902 | if (!--nesting_level) |
5903 | break; | |
d7a9644e | 5904 | } |
805e22b2 | 5905 | else if (*p == ';' && nesting_level == 1) |
5906 | break; | |
5907 | else if (*p == '%' && p[1] == '*' && nesting_level == 1) | |
5908 | have_subst = true; | |
5909 | else if (*p == '\0') | |
5e8f3c31 | 5910 | goto invalid; |
805e22b2 | 5911 | p++; |
d7a9644e | 5912 | } |
952f0048 | 5913 | |
805e22b2 | 5914 | end_body = p; |
5915 | while (end_body[-1] == ' ' || end_body[-1] == '\t') | |
5916 | end_body--; | |
d7a9644e | 5917 | |
805e22b2 | 5918 | if (have_subst && !starred) |
5e8f3c31 | 5919 | goto invalid; |
ae70654c | 5920 | |
805e22b2 | 5921 | if (matched) |
e1478c0f | 5922 | { |
805e22b2 | 5923 | /* Copy the substitution body to permanent storage and execute it. |
5924 | If have_subst is false, this is a simple matter of running the | |
5925 | body through do_spec_1... */ | |
5926 | char *string = save_string (body, end_body - body); | |
5927 | if (!have_subst) | |
5928 | { | |
5929 | if (do_spec_1 (string, 0, NULL) < 0) | |
5930 | return 0; | |
5931 | } | |
5932 | else | |
5933 | { | |
5934 | /* ... but if have_subst is true, we have to process the | |
5935 | body once for each matching switch, with %* set to the | |
5936 | variant part of the switch. */ | |
5937 | unsigned int hard_match_len = end_atom - atom; | |
5938 | int i; | |
e1478c0f | 5939 | |
805e22b2 | 5940 | for (i = 0; i < n_switches; i++) |
5941 | if (!strncmp (switches[i].part1, atom, hard_match_len) | |
5942 | && check_live_switch (i, hard_match_len)) | |
5943 | { | |
5944 | if (do_spec_1 (string, 0, | |
5945 | &switches[i].part1[hard_match_len]) < 0) | |
5946 | return 0; | |
5947 | /* Pass any arguments this switch has. */ | |
5948 | give_switch (i, 1); | |
5949 | suffix_subst = NULL; | |
5950 | } | |
5951 | } | |
dead3293 | 5952 | } |
5953 | ||
805e22b2 | 5954 | return p; |
5e8f3c31 | 5955 | |
5956 | invalid: | |
a8c464ac | 5957 | fatal_error ("braced spec body %qs is invalid", body); |
d7a9644e | 5958 | } |
cde688ab | 5959 | \f |
d870e215 | 5960 | /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch |
5961 | on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*} | |
5962 | spec, or -1 if either exact match or %* is used. | |
cde688ab | 5963 | |
b35329c7 | 5964 | A -O switch is obsoleted by a later -O switch. A -f, -g, -m, or -W switch |
cde688ab | 5965 | whose value does not begin with "no-" is obsoleted by the same value |
5966 | with the "no-", similarly for a switch with the "no-" prefix. */ | |
5967 | ||
5968 | static int | |
952f0048 | 5969 | check_live_switch (int switchnum, int prefix_length) |
cde688ab | 5970 | { |
e40d43cc | 5971 | const char *name = switches[switchnum].part1; |
cde688ab | 5972 | int i; |
5973 | ||
71278019 | 5974 | /* If we already processed this switch and determined if it was |
5975 | live or not, return our past determination. */ | |
5976 | if (switches[switchnum].live_cond != 0) | |
5977 | return ((switches[switchnum].live_cond & SWITCH_LIVE) != 0 | |
5978 | && (switches[switchnum].live_cond & SWITCH_FALSE) == 0 | |
87a6a1b5 | 5979 | && (switches[switchnum].live_cond & SWITCH_IGNORE_PERMANENTLY) |
5980 | == 0); | |
71278019 | 5981 | |
d870e215 | 5982 | /* In the common case of {<at-most-one-letter>*}, a negating |
cde688ab | 5983 | switch would always match, so ignore that case. We will just |
5984 | send the conflicting switches to the compiler phase. */ | |
d870e215 | 5985 | if (prefix_length >= 0 && prefix_length <= 1) |
cde688ab | 5986 | return 1; |
5987 | ||
cde688ab | 5988 | /* Now search for duplicate in a manner that depends on the name. */ |
5989 | switch (*name) | |
5990 | { | |
5991 | case 'O': | |
026f2c7a | 5992 | for (i = switchnum + 1; i < n_switches; i++) |
5993 | if (switches[i].part1[0] == 'O') | |
5994 | { | |
556cfe53 | 5995 | switches[switchnum].validated = true; |
026f2c7a | 5996 | switches[switchnum].live_cond = SWITCH_FALSE; |
5997 | return 0; | |
5998 | } | |
cde688ab | 5999 | break; |
d7a9644e | 6000 | |
b35329c7 | 6001 | case 'W': case 'f': case 'm': case 'g': |
d870e215 | 6002 | if (! strncmp (name + 1, "no-", 3)) |
cde688ab | 6003 | { |
a92771b8 | 6004 | /* We have Xno-YYY, search for XYYY. */ |
cde688ab | 6005 | for (i = switchnum + 1; i < n_switches; i++) |
6006 | if (switches[i].part1[0] == name[0] | |
6007 | && ! strcmp (&switches[i].part1[1], &name[4])) | |
026f2c7a | 6008 | { |
556cfe53 | 6009 | /* --specs are validated with the validate_switches mechanism. */ |
6010 | if (switches[switchnum].known) | |
6011 | switches[switchnum].validated = true; | |
026f2c7a | 6012 | switches[switchnum].live_cond = SWITCH_FALSE; |
6013 | return 0; | |
6014 | } | |
cde688ab | 6015 | } |
6016 | else | |
6017 | { | |
6018 | /* We have XYYY, search for Xno-YYY. */ | |
6019 | for (i = switchnum + 1; i < n_switches; i++) | |
6020 | if (switches[i].part1[0] == name[0] | |
6021 | && switches[i].part1[1] == 'n' | |
6022 | && switches[i].part1[2] == 'o' | |
6023 | && switches[i].part1[3] == '-' | |
6024 | && !strcmp (&switches[i].part1[4], &name[1])) | |
026f2c7a | 6025 | { |
556cfe53 | 6026 | /* --specs are validated with the validate_switches mechanism. */ |
6027 | if (switches[switchnum].known) | |
6028 | switches[switchnum].validated = true; | |
026f2c7a | 6029 | switches[switchnum].live_cond = SWITCH_FALSE; |
6030 | return 0; | |
6031 | } | |
cde688ab | 6032 | } |
6033 | break; | |
6034 | } | |
6035 | ||
6036 | /* Otherwise the switch is live. */ | |
79d52444 | 6037 | switches[switchnum].live_cond |= SWITCH_LIVE; |
cde688ab | 6038 | return 1; |
6039 | } | |
6040 | \f | |
d7a9644e | 6041 | /* Pass a switch to the current accumulating command |
6042 | in the same form that we received it. | |
6043 | SWITCHNUM identifies the switch; it is an index into | |
6044 | the vector of switches gcc received, which is `switches'. | |
6045 | This cannot fail since it never finishes a command line. | |
6046 | ||
805e22b2 | 6047 | If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */ |
d7a9644e | 6048 | |
6049 | static void | |
952f0048 | 6050 | give_switch (int switchnum, int omit_first_word) |
d7a9644e | 6051 | { |
79d52444 | 6052 | if ((switches[switchnum].live_cond & SWITCH_IGNORE) != 0) |
4a10d696 | 6053 | return; |
6054 | ||
d7a9644e | 6055 | if (!omit_first_word) |
6056 | { | |
d946ea19 | 6057 | do_spec_1 ("-", 0, NULL); |
6058 | do_spec_1 (switches[switchnum].part1, 1, NULL); | |
d7a9644e | 6059 | } |
3796373b | 6060 | |
d7a9644e | 6061 | if (switches[switchnum].args != 0) |
6062 | { | |
2508fdc3 | 6063 | const char **p; |
d7a9644e | 6064 | for (p = switches[switchnum].args; *p; p++) |
6065 | { | |
bdbd5352 | 6066 | const char *arg = *p; |
6067 | ||
805e22b2 | 6068 | do_spec_1 (" ", 0, NULL); |
bdbd5352 | 6069 | if (suffix_subst) |
6070 | { | |
6071 | unsigned length = strlen (arg); | |
633199a0 | 6072 | int dot = 0; |
bdbd5352 | 6073 | |
6074 | while (length-- && !IS_DIR_SEPARATOR (arg[length])) | |
6075 | if (arg[length] == '.') | |
6076 | { | |
e47a6f81 | 6077 | (CONST_CAST(char *, arg))[length] = 0; |
633199a0 | 6078 | dot = 1; |
bdbd5352 | 6079 | break; |
6080 | } | |
d946ea19 | 6081 | do_spec_1 (arg, 1, NULL); |
633199a0 | 6082 | if (dot) |
e47a6f81 | 6083 | (CONST_CAST(char *, arg))[length] = '.'; |
633199a0 | 6084 | do_spec_1 (suffix_subst, 1, NULL); |
bdbd5352 | 6085 | } |
6086 | else | |
d946ea19 | 6087 | do_spec_1 (arg, 1, NULL); |
d7a9644e | 6088 | } |
6089 | } | |
3796373b | 6090 | |
d946ea19 | 6091 | do_spec_1 (" ", 0, NULL); |
556cfe53 | 6092 | switches[switchnum].validated = true; |
d7a9644e | 6093 | } |
6094 | \f | |
6095 | /* Search for a file named NAME trying various prefixes including the | |
6096 | user's -B prefix and some standard ones. | |
6097 | Return the absolute file name found. If nothing is found, return NAME. */ | |
6098 | ||
e40d43cc | 6099 | static const char * |
952f0048 | 6100 | find_file (const char *name) |
d7a9644e | 6101 | { |
067277c3 | 6102 | char *newname = find_a_file (&startfile_prefixes, name, R_OK, true); |
d7a9644e | 6103 | return newname ? newname : name; |
6104 | } | |
6105 | ||
c049b2ee | 6106 | /* Determine whether a directory exists. If LINKER, return 0 for |
067277c3 | 6107 | certain fixed names not needed by the linker. */ |
d7a9644e | 6108 | |
6109 | static int | |
067277c3 | 6110 | is_directory (const char *path1, bool linker) |
d7a9644e | 6111 | { |
067277c3 | 6112 | int len1; |
6113 | char *path; | |
d7a9644e | 6114 | char *cp; |
6115 | struct stat st; | |
6116 | ||
067277c3 | 6117 | /* Ensure the string ends with "/.". The resulting path will be a |
6118 | directory even if the given path is a symbolic link. */ | |
6119 | len1 = strlen (path1); | |
25a1c410 | 6120 | path = (char *) alloca (3 + len1); |
d7e36a01 | 6121 | memcpy (path, path1, len1); |
067277c3 | 6122 | cp = path + len1; |
79b23a1e | 6123 | if (!IS_DIR_SEPARATOR (cp[-1])) |
b9374a77 | 6124 | *cp++ = DIR_SEPARATOR; |
d7a9644e | 6125 | *cp++ = '.'; |
6126 | *cp = '\0'; | |
6127 | ||
6128 | /* Exclude directories that the linker is known to search. */ | |
c049b2ee | 6129 | if (linker |
067277c3 | 6130 | && IS_DIR_SEPARATOR (path[0]) |
b9374a77 | 6131 | && ((cp - path == 6 |
82715bcd | 6132 | && filename_ncmp (path + 1, "lib", 3) == 0) |
b9374a77 | 6133 | || (cp - path == 10 |
82715bcd | 6134 | && filename_ncmp (path + 1, "usr", 3) == 0 |
067277c3 | 6135 | && IS_DIR_SEPARATOR (path[4]) |
82715bcd | 6136 | && filename_ncmp (path + 5, "lib", 3) == 0))) |
d7a9644e | 6137 | return 0; |
6138 | ||
6139 | return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode)); | |
6140 | } | |
397f1574 | 6141 | |
6142 | /* Set up the various global variables to indicate that we're processing | |
6143 | the input file named FILENAME. */ | |
6144 | ||
32d661fc | 6145 | void |
952f0048 | 6146 | set_input (const char *filename) |
397f1574 | 6147 | { |
19cb6b50 | 6148 | const char *p; |
397f1574 | 6149 | |
460b8bb3 | 6150 | gcc_input_filename = filename; |
6151 | input_filename_length = strlen (gcc_input_filename); | |
6152 | input_basename = lbasename (gcc_input_filename); | |
397f1574 | 6153 | |
6154 | /* Find a suffix starting with the last period, | |
6155 | and set basename_length to exclude that suffix. */ | |
6156 | basename_length = strlen (input_basename); | |
1cf79a1a | 6157 | suffixed_basename_length = basename_length; |
397f1574 | 6158 | p = input_basename + basename_length; |
026f2c7a | 6159 | while (p != input_basename && *p != '.') |
6160 | --p; | |
397f1574 | 6161 | if (*p == '.' && p != input_basename) |
6162 | { | |
6163 | basename_length = p - input_basename; | |
6164 | input_suffix = p + 1; | |
6165 | } | |
6166 | else | |
6167 | input_suffix = ""; | |
3cfec666 | 6168 | |
74e4079a | 6169 | /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then |
460b8bb3 | 6170 | we will need to do a stat on the gcc_input_filename. The |
74e4079a | 6171 | INPUT_STAT_SET signals that the stat is needed. */ |
6172 | input_stat_set = 0; | |
397f1574 | 6173 | } |
d7a9644e | 6174 | \f |
6175 | /* On fatal signals, delete all the temporary files. */ | |
6176 | ||
6177 | static void | |
a922df2e | 6178 | fatal_signal (int signum) |
d7a9644e | 6179 | { |
6180 | signal (signum, SIG_DFL); | |
6181 | delete_failure_queue (); | |
6182 | delete_temp_files (); | |
6183 | /* Get the same signal again, this time not handled, | |
6184 | so its normal effect occurs. */ | |
6185 | kill (getpid (), signum); | |
6186 | } | |
6187 | ||
71278019 | 6188 | /* Compare the contents of the two files named CMPFILE[0] and |
6189 | CMPFILE[1]. Return zero if they're identical, nonzero | |
6190 | otherwise. */ | |
6191 | ||
6192 | static int | |
6193 | compare_files (char *cmpfile[]) | |
6194 | { | |
6195 | int ret = 0; | |
6196 | FILE *temp[2] = { NULL, NULL }; | |
6197 | int i; | |
6198 | ||
6199 | #if HAVE_MMAP_FILE | |
6200 | { | |
6201 | size_t length[2]; | |
6202 | void *map[2] = { NULL, NULL }; | |
6203 | ||
6204 | for (i = 0; i < 2; i++) | |
6205 | { | |
6206 | struct stat st; | |
6207 | ||
6208 | if (stat (cmpfile[i], &st) < 0 || !S_ISREG (st.st_mode)) | |
6209 | { | |
6210 | error ("%s: could not determine length of compare-debug file %s", | |
460b8bb3 | 6211 | gcc_input_filename, cmpfile[i]); |
71278019 | 6212 | ret = 1; |
6213 | break; | |
6214 | } | |
6215 | ||
6216 | length[i] = st.st_size; | |
6217 | } | |
6218 | ||
6219 | if (!ret && length[0] != length[1]) | |
6220 | { | |
460b8bb3 | 6221 | error ("%s: -fcompare-debug failure (length)", gcc_input_filename); |
71278019 | 6222 | ret = 1; |
6223 | } | |
6224 | ||
6225 | if (!ret) | |
6226 | for (i = 0; i < 2; i++) | |
6227 | { | |
6228 | int fd = open (cmpfile[i], O_RDONLY); | |
6229 | if (fd < 0) | |
6230 | { | |
6231 | error ("%s: could not open compare-debug file %s", | |
460b8bb3 | 6232 | gcc_input_filename, cmpfile[i]); |
71278019 | 6233 | ret = 1; |
6234 | break; | |
6235 | } | |
6236 | ||
6237 | map[i] = mmap (NULL, length[i], PROT_READ, MAP_PRIVATE, fd, 0); | |
6238 | close (fd); | |
6239 | ||
6240 | if (map[i] == (void *) MAP_FAILED) | |
6241 | { | |
6242 | ret = -1; | |
6243 | break; | |
6244 | } | |
6245 | } | |
6246 | ||
6247 | if (!ret) | |
6248 | { | |
6249 | if (memcmp (map[0], map[1], length[0]) != 0) | |
6250 | { | |
460b8bb3 | 6251 | error ("%s: -fcompare-debug failure", gcc_input_filename); |
71278019 | 6252 | ret = 1; |
6253 | } | |
6254 | } | |
6255 | ||
6256 | for (i = 0; i < 2; i++) | |
6257 | if (map[i]) | |
7a63ab96 | 6258 | munmap ((caddr_t) map[i], length[i]); |
71278019 | 6259 | |
6260 | if (ret >= 0) | |
6261 | return ret; | |
6262 | ||
6263 | ret = 0; | |
6264 | } | |
6265 | #endif | |
6266 | ||
6267 | for (i = 0; i < 2; i++) | |
6268 | { | |
6269 | temp[i] = fopen (cmpfile[i], "r"); | |
6270 | if (!temp[i]) | |
6271 | { | |
6272 | error ("%s: could not open compare-debug file %s", | |
460b8bb3 | 6273 | gcc_input_filename, cmpfile[i]); |
71278019 | 6274 | ret = 1; |
6275 | break; | |
6276 | } | |
6277 | } | |
6278 | ||
6279 | if (!ret && temp[0] && temp[1]) | |
6280 | for (;;) | |
6281 | { | |
6282 | int c0, c1; | |
6283 | c0 = fgetc (temp[0]); | |
6284 | c1 = fgetc (temp[1]); | |
6285 | ||
6286 | if (c0 != c1) | |
6287 | { | |
6288 | error ("%s: -fcompare-debug failure", | |
460b8bb3 | 6289 | gcc_input_filename); |
71278019 | 6290 | ret = 1; |
6291 | break; | |
6292 | } | |
6293 | ||
6294 | if (c0 == EOF) | |
6295 | break; | |
6296 | } | |
6297 | ||
6298 | for (i = 1; i >= 0; i--) | |
6299 | { | |
6300 | if (temp[i]) | |
6301 | fclose (temp[i]); | |
6302 | } | |
6303 | ||
6304 | return ret; | |
6305 | } | |
6306 | ||
b71cbc18 | 6307 | extern int main (int, char **); |
2ff5acce | 6308 | |
d7a9644e | 6309 | int |
b71cbc18 | 6310 | main (int argc, char **argv) |
d7a9644e | 6311 | { |
1cf79a1a | 6312 | size_t i; |
d7a9644e | 6313 | int value; |
d7a9644e | 6314 | int linker_was_run = 0; |
dc1dd09b | 6315 | int lang_n_infiles = 0; |
573aba85 | 6316 | int num_linker_inputs = 0; |
d7a9644e | 6317 | char *explicit_link_files; |
6318 | char *specs_file; | |
a1051b02 | 6319 | char *lto_wrapper_file; |
e40d43cc | 6320 | const char *p; |
9d70d39c | 6321 | struct user_specs *uptr; |
c159e0b7 | 6322 | char **old_argv = argv; |
e62df35b | 6323 | struct cl_decoded_option *decoded_options; |
6324 | unsigned int decoded_options_count; | |
d7a9644e | 6325 | |
1764779d | 6326 | p = argv[0] + strlen (argv[0]); |
79b23a1e | 6327 | while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1])) |
6328 | --p; | |
460b8bb3 | 6329 | progname = p; |
d7a9644e | 6330 | |
460b8bb3 | 6331 | xmalloc_set_program_name (progname); |
6deeea15 | 6332 | |
64271450 | 6333 | expandargv (&argc, &argv); |
6334 | ||
c159e0b7 | 6335 | /* Determine if any expansions were made. */ |
6336 | if (argv != old_argv) | |
6337 | at_file_supplied = true; | |
6338 | ||
90336809 | 6339 | /* Register the language-independent parameters. */ |
6340 | global_init_params (); | |
6341 | finish_params (); | |
6342 | ||
6343 | init_options_struct (&global_options, &global_options_set); | |
f3f006ad | 6344 | |
e62df35b | 6345 | decode_cmdline_options_to_array (argc, CONST_CAST2 (const char **, char **, |
6346 | argv), | |
6347 | CL_DRIVER, | |
6348 | &decoded_options, &decoded_options_count); | |
a1baa5f1 | 6349 | |
4367c81f | 6350 | /* Unlock the stdio streams. */ |
9c8f076b | 6351 | unlock_std_streams (); |
4367c81f | 6352 | |
eb718689 | 6353 | gcc_init_libintl (); |
be2828ce | 6354 | |
460b8bb3 | 6355 | diagnostic_initialize (global_dc, 0); |
2cdbb326 | 6356 | |
6357 | #ifdef GCC_DRIVER_HOST_INITIALIZATION | |
6358 | /* Perform host dependent initialization when needed. */ | |
6359 | GCC_DRIVER_HOST_INITIALIZATION; | |
6360 | #endif | |
6361 | ||
460b8bb3 | 6362 | if (atexit (delete_temp_files) != 0) |
6363 | fatal_error ("atexit failed"); | |
6364 | ||
d7a9644e | 6365 | if (signal (SIGINT, SIG_IGN) != SIG_IGN) |
a922df2e | 6366 | signal (SIGINT, fatal_signal); |
294a029f | 6367 | #ifdef SIGHUP |
d7a9644e | 6368 | if (signal (SIGHUP, SIG_IGN) != SIG_IGN) |
a922df2e | 6369 | signal (SIGHUP, fatal_signal); |
294a029f | 6370 | #endif |
d7a9644e | 6371 | if (signal (SIGTERM, SIG_IGN) != SIG_IGN) |
a922df2e | 6372 | signal (SIGTERM, fatal_signal); |
d7a9644e | 6373 | #ifdef SIGPIPE |
6374 | if (signal (SIGPIPE, SIG_IGN) != SIG_IGN) | |
a922df2e | 6375 | signal (SIGPIPE, fatal_signal); |
d7a9644e | 6376 | #endif |
6b917287 | 6377 | #ifdef SIGCHLD |
1a3768bc | 6378 | /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will |
6379 | receive the signal. A different setting is inheritable */ | |
6380 | signal (SIGCHLD, SIG_DFL); | |
6b917287 | 6381 | #endif |
d7a9644e | 6382 | |
00dacc40 | 6383 | /* Parsing and gimplification sometimes need quite large stack. |
6384 | Increase stack size limits if possible. */ | |
6385 | stack_limit_increase (64 * 1024 * 1024); | |
6386 | ||
c21b3276 | 6387 | /* Allocate the argument vector. */ |
6388 | alloc_args (); | |
d7a9644e | 6389 | |
6390 | obstack_init (&obstack); | |
6391 | ||
3d97d965 | 6392 | /* Build multilib_select, et. al from the separate lines that make up each |
6393 | multilib selection. */ | |
709c4e1b | 6394 | { |
e772a198 | 6395 | const char *const *q = multilib_raw; |
3d97d965 | 6396 | int need_space; |
709c4e1b | 6397 | |
6398 | obstack_init (&multilib_obstack); | |
a92771b8 | 6399 | while ((p = *q++) != (char *) 0) |
709c4e1b | 6400 | obstack_grow (&multilib_obstack, p, strlen (p)); |
6401 | ||
6402 | obstack_1grow (&multilib_obstack, 0); | |
4fac984f | 6403 | multilib_select = XOBFINISH (&multilib_obstack, const char *); |
3d97d965 | 6404 | |
6405 | q = multilib_matches_raw; | |
6406 | while ((p = *q++) != (char *) 0) | |
6407 | obstack_grow (&multilib_obstack, p, strlen (p)); | |
6408 | ||
6409 | obstack_1grow (&multilib_obstack, 0); | |
4fac984f | 6410 | multilib_matches = XOBFINISH (&multilib_obstack, const char *); |
3d97d965 | 6411 | |
54518c3b | 6412 | q = multilib_exclusions_raw; |
6413 | while ((p = *q++) != (char *) 0) | |
026f2c7a | 6414 | obstack_grow (&multilib_obstack, p, strlen (p)); |
54518c3b | 6415 | |
6416 | obstack_1grow (&multilib_obstack, 0); | |
4fac984f | 6417 | multilib_exclusions = XOBFINISH (&multilib_obstack, const char *); |
2c815aff | 6418 | |
7137cdac | 6419 | q = multilib_reuse_raw; |
6420 | while ((p = *q++) != (char *) 0) | |
6421 | obstack_grow (&multilib_obstack, p, strlen (p)); | |
6422 | ||
6423 | obstack_1grow (&multilib_obstack, 0); | |
6424 | multilib_reuse = XOBFINISH (&multilib_obstack, const char *); | |
6425 | ||
3d97d965 | 6426 | need_space = FALSE; |
3098b2d3 | 6427 | for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++) |
3d97d965 | 6428 | { |
6429 | if (need_space) | |
6430 | obstack_1grow (&multilib_obstack, ' '); | |
6431 | obstack_grow (&multilib_obstack, | |
6432 | multilib_defaults_raw[i], | |
6433 | strlen (multilib_defaults_raw[i])); | |
6434 | need_space = TRUE; | |
6435 | } | |
6436 | ||
6437 | obstack_1grow (&multilib_obstack, 0); | |
4fac984f | 6438 | multilib_defaults = XOBFINISH (&multilib_obstack, const char *); |
709c4e1b | 6439 | } |
6440 | ||
bba01ba8 | 6441 | #ifdef INIT_ENVIRONMENT |
6442 | /* Set up any other necessary machine specific environment variables. */ | |
99c00302 | 6443 | xputenv (INIT_ENVIRONMENT); |
bba01ba8 | 6444 | #endif |
6445 | ||
d7a9644e | 6446 | /* Make a table of what switches there are (switches, n_switches). |
6447 | Make a table of specified input files (infiles, n_infiles). | |
6448 | Decode switches that are handled locally. */ | |
6449 | ||
e62df35b | 6450 | process_command (decoded_options_count, decoded_options); |
d7a9644e | 6451 | |
6452 | /* Initialize the vector of specs to just the default. | |
6453 | This means one element containing 0s, as a terminator. */ | |
6454 | ||
25a1c410 | 6455 | compilers = XNEWVAR (struct compiler, sizeof default_compilers); |
f0af5a88 | 6456 | memcpy (compilers, default_compilers, sizeof default_compilers); |
d7a9644e | 6457 | n_compilers = n_default_compilers; |
6458 | ||
6459 | /* Read specs from a file if there is one. */ | |
6460 | ||
3441e5dd | 6461 | machine_suffix = concat (spec_machine, dir_separator_str, |
4e2023c8 | 6462 | spec_version, dir_separator_str, NULL); |
6463 | just_machine_suffix = concat (spec_machine, dir_separator_str, NULL); | |
d7a9644e | 6464 | |
067277c3 | 6465 | specs_file = find_a_file (&startfile_prefixes, "specs", R_OK, true); |
d7a9644e | 6466 | /* Read the specs file unless it is a default one. */ |
6467 | if (specs_file != 0 && strcmp (specs_file, "specs")) | |
556cfe53 | 6468 | read_specs (specs_file, true, false); |
4582d741 | 6469 | else |
6470 | init_spec (); | |
8b351d3c | 6471 | |
c71f4af0 | 6472 | /* We need to check standard_exec_prefix/just_machine_suffix/specs |
d4ea3b1f | 6473 | for any override of as, ld and libraries. */ |
25a1c410 | 6474 | specs_file = (char *) alloca (strlen (standard_exec_prefix) |
f0af5a88 | 6475 | + strlen (just_machine_suffix) + sizeof ("specs")); |
c71f4af0 | 6476 | |
6477 | strcpy (specs_file, standard_exec_prefix); | |
6478 | strcat (specs_file, just_machine_suffix); | |
6479 | strcat (specs_file, "specs"); | |
6480 | if (access (specs_file, R_OK) == 0) | |
556cfe53 | 6481 | read_specs (specs_file, true, false); |
2c815aff | 6482 | |
7dd97ab6 | 6483 | /* Process any configure-time defaults specified for the command line |
6484 | options, via OPTION_DEFAULT_SPECS. */ | |
6485 | for (i = 0; i < ARRAY_SIZE (option_default_specs); i++) | |
6486 | do_option_spec (option_default_specs[i].name, | |
6487 | option_default_specs[i].spec); | |
6488 | ||
d0faeb9d | 6489 | /* Process DRIVER_SELF_SPECS, adding any new options to the end |
6490 | of the command line. */ | |
6491 | ||
6492 | for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++) | |
6493 | do_self_spec (driver_self_specs[i]); | |
6494 | ||
805e22b2 | 6495 | /* If not cross-compiling, look for executables in the standard |
6496 | places. */ | |
6497 | if (*cross_compile == '0') | |
a45072dd | 6498 | { |
bfb9bc39 | 6499 | if (*md_exec_prefix) |
6500 | { | |
6501 | add_prefix (&exec_prefixes, md_exec_prefix, "GCC", | |
2af84186 | 6502 | PREFIX_PRIORITY_LAST, 0, 0); |
bfb9bc39 | 6503 | } |
805e22b2 | 6504 | } |
6505 | ||
6473f3f4 | 6506 | /* Process sysroot_suffix_spec. */ |
4ea70922 | 6507 | if (*sysroot_suffix_spec != 0 |
70eb49f5 | 6508 | && !no_sysroot_suffix |
4ea70922 | 6509 | && do_spec_2 (sysroot_suffix_spec) == 0) |
6510 | { | |
f1f41a6c | 6511 | if (argbuf.length () > 1) |
0a81f5a0 | 6512 | error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC"); |
f1f41a6c | 6513 | else if (argbuf.length () == 1) |
6514 | target_sysroot_suffix = xstrdup (argbuf.last ()); | |
4ea70922 | 6515 | } |
6516 | ||
b6bcc48f | 6517 | #ifdef HAVE_LD_SYSROOT |
6518 | /* Pass the --sysroot option to the linker, if it supports that. If | |
6519 | there is a sysroot_suffix_spec, it has already been processed by | |
6520 | this point, so target_system_root really is the system root we | |
6521 | should be using. */ | |
6522 | if (target_system_root) | |
6523 | { | |
6524 | obstack_grow (&obstack, "%(sysroot_spec) ", strlen ("%(sysroot_spec) ")); | |
6525 | obstack_grow0 (&obstack, link_spec, strlen (link_spec)); | |
556cfe53 | 6526 | set_spec ("link", XOBFINISH (&obstack, const char *), false); |
b6bcc48f | 6527 | } |
6528 | #endif | |
6529 | ||
6473f3f4 | 6530 | /* Process sysroot_hdrs_suffix_spec. */ |
4ea70922 | 6531 | if (*sysroot_hdrs_suffix_spec != 0 |
70eb49f5 | 6532 | && !no_sysroot_suffix |
4ea70922 | 6533 | && do_spec_2 (sysroot_hdrs_suffix_spec) == 0) |
6534 | { | |
f1f41a6c | 6535 | if (argbuf.length () > 1) |
0a81f5a0 | 6536 | error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC"); |
f1f41a6c | 6537 | else if (argbuf.length () == 1) |
6538 | target_sysroot_hdrs_suffix = xstrdup (argbuf.last ()); | |
4ea70922 | 6539 | } |
6540 | ||
805e22b2 | 6541 | /* Look for startfiles in the standard places. */ |
6542 | if (*startfile_prefix_spec != 0 | |
6543 | && do_spec_2 (startfile_prefix_spec) == 0 | |
6544 | && do_spec_1 (" ", 0, NULL) == 0) | |
6545 | { | |
9d9edc85 | 6546 | const char *arg; |
805e22b2 | 6547 | int ndx; |
f1f41a6c | 6548 | FOR_EACH_VEC_ELT (argbuf, ndx, arg) |
9d9edc85 | 6549 | add_sysrooted_prefix (&startfile_prefixes, arg, "BINUTILS", |
2af84186 | 6550 | PREFIX_PRIORITY_LAST, 0, 1); |
805e22b2 | 6551 | } |
6552 | /* We should eventually get rid of all these and stick to | |
6553 | startfile_prefix_spec exclusively. */ | |
6554 | else if (*cross_compile == '0' || target_system_root) | |
6555 | { | |
bfb9bc39 | 6556 | if (*md_startfile_prefix) |
805e22b2 | 6557 | add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix, |
2af84186 | 6558 | "GCC", PREFIX_PRIORITY_LAST, 0, 1); |
a45072dd | 6559 | |
bfb9bc39 | 6560 | if (*md_startfile_prefix_1) |
805e22b2 | 6561 | add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix_1, |
2af84186 | 6562 | "GCC", PREFIX_PRIORITY_LAST, 0, 1); |
1121f96b | 6563 | |
86e5f097 | 6564 | /* If standard_startfile_prefix is relative, base it on |
6565 | standard_exec_prefix. This lets us move the installed tree | |
6566 | as a unit. If GCC_EXEC_PREFIX is defined, base | |
1fbb4a86 | 6567 | standard_startfile_prefix on that as well. |
6568 | ||
6569 | If the prefix is relative, only search it for native compilers; | |
6570 | otherwise we will search a directory containing host libraries. */ | |
a5c088d4 | 6571 | if (IS_ABSOLUTE_PATH (standard_startfile_prefix)) |
805e22b2 | 6572 | add_sysrooted_prefix (&startfile_prefixes, |
6573 | standard_startfile_prefix, "BINUTILS", | |
2af84186 | 6574 | PREFIX_PRIORITY_LAST, 0, 1); |
1fbb4a86 | 6575 | else if (*cross_compile == '0') |
86e5f097 | 6576 | { |
b9374a77 | 6577 | add_prefix (&startfile_prefixes, |
48e1416a | 6578 | concat (gcc_exec_prefix |
6579 | ? gcc_exec_prefix : standard_exec_prefix, | |
6580 | machine_suffix, | |
4e2023c8 | 6581 | standard_startfile_prefix, NULL), |
2af84186 | 6582 | NULL, PREFIX_PRIORITY_LAST, 0, 1); |
2c815aff | 6583 | } |
86e5f097 | 6584 | |
c4328bcc | 6585 | /* Sysrooted prefixes are relocated because target_system_root is |
6586 | also relocated by gcc_exec_prefix. */ | |
3c2ba0de | 6587 | if (*standard_startfile_prefix_1) |
6588 | add_sysrooted_prefix (&startfile_prefixes, | |
6589 | standard_startfile_prefix_1, "BINUTILS", | |
2af84186 | 6590 | PREFIX_PRIORITY_LAST, 0, 1); |
3c2ba0de | 6591 | if (*standard_startfile_prefix_2) |
6592 | add_sysrooted_prefix (&startfile_prefixes, | |
6593 | standard_startfile_prefix_2, "BINUTILS", | |
2af84186 | 6594 | PREFIX_PRIORITY_LAST, 0, 1); |
a45072dd | 6595 | } |
4ae4e5e8 | 6596 | |
c15af0eb | 6597 | /* Process any user specified specs in the order given on the command |
6598 | line. */ | |
6599 | for (uptr = user_specs_head; uptr; uptr = uptr->next) | |
6600 | { | |
c954ff02 | 6601 | char *filename = find_a_file (&startfile_prefixes, uptr->filename, |
067277c3 | 6602 | R_OK, true); |
556cfe53 | 6603 | read_specs (filename ? filename : uptr->filename, false, true); |
c15af0eb | 6604 | } |
6605 | ||
bd3ce038 | 6606 | /* Process any user self specs. */ |
6607 | { | |
6608 | struct spec_list *sl; | |
6609 | for (sl = specs; sl; sl = sl->next) | |
6610 | if (sl->name_len == sizeof "self_spec" - 1 | |
6611 | && !strcmp (sl->name, "self_spec")) | |
6612 | do_self_spec (*sl->ptr_spec); | |
6613 | } | |
6614 | ||
6615 | if (compare_debug) | |
6616 | { | |
6617 | enum save_temps save; | |
6618 | ||
6619 | if (!compare_debug_second) | |
6620 | { | |
6621 | n_switches_debug_check[1] = n_switches; | |
6622 | n_switches_alloc_debug_check[1] = n_switches_alloc; | |
6623 | switches_debug_check[1] = XDUPVEC (struct switchstr, switches, | |
6624 | n_switches_alloc); | |
6625 | ||
6626 | do_self_spec ("%:compare-debug-self-opt()"); | |
6627 | n_switches_debug_check[0] = n_switches; | |
6628 | n_switches_alloc_debug_check[0] = n_switches_alloc; | |
6629 | switches_debug_check[0] = switches; | |
6630 | ||
6631 | n_switches = n_switches_debug_check[1]; | |
6632 | n_switches_alloc = n_switches_alloc_debug_check[1]; | |
6633 | switches = switches_debug_check[1]; | |
6634 | } | |
6635 | ||
6636 | /* Avoid crash when computing %j in this early. */ | |
6637 | save = save_temps_flag; | |
6638 | save_temps_flag = SAVE_TEMPS_NONE; | |
6639 | ||
6640 | compare_debug = -compare_debug; | |
6641 | do_self_spec ("%:compare-debug-self-opt()"); | |
6642 | ||
6643 | save_temps_flag = save; | |
6644 | ||
6645 | if (!compare_debug_second) | |
6646 | { | |
6647 | n_switches_debug_check[1] = n_switches; | |
6648 | n_switches_alloc_debug_check[1] = n_switches_alloc; | |
6649 | switches_debug_check[1] = switches; | |
6650 | compare_debug = -compare_debug; | |
6651 | n_switches = n_switches_debug_check[0]; | |
6652 | n_switches_alloc = n_switches_debug_check[0]; | |
6653 | switches = switches_debug_check[0]; | |
6654 | } | |
6655 | } | |
6656 | ||
6657 | ||
533d7727 | 6658 | /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */ |
6659 | if (gcc_exec_prefix) | |
47950139 | 6660 | gcc_exec_prefix = concat (gcc_exec_prefix, spec_machine, dir_separator_str, |
6661 | spec_version, dir_separator_str, NULL); | |
a45072dd | 6662 | |
d7a9644e | 6663 | /* Now we have the specs. |
6664 | Set the `valid' bits for switches that match anything in any spec. */ | |
6665 | ||
6666 | validate_all_switches (); | |
6667 | ||
9577d478 | 6668 | /* Now that we have the switches and the specs, set |
6669 | the subdirectory based on the options. */ | |
6670 | set_multilib_dir (); | |
6671 | ||
7bfefa9d | 6672 | /* Set up to remember the pathname of gcc and any options |
460b8bb3 | 6673 | needed for collect. We use argv[0] instead of progname because |
7bfefa9d | 6674 | we need the complete pathname. */ |
6675 | obstack_init (&collect_obstack); | |
6676 | obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1); | |
6677 | obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1); | |
6678 | xputenv (XOBFINISH (&collect_obstack, char *)); | |
6679 | ||
6680 | /* Set up to remember the pathname of the lto wrapper. */ | |
6681 | ||
1d784785 | 6682 | if (have_c) |
6683 | lto_wrapper_file = NULL; | |
6684 | else | |
6685 | lto_wrapper_file = find_a_file (&exec_prefixes, "lto-wrapper", | |
6686 | X_OK, false); | |
a1051b02 | 6687 | if (lto_wrapper_file) |
7bfefa9d | 6688 | { |
40c059b1 | 6689 | lto_wrapper_file = convert_white_space (lto_wrapper_file); |
a1051b02 | 6690 | lto_wrapper_spec = lto_wrapper_file; |
7bfefa9d | 6691 | obstack_init (&collect_obstack); |
6692 | obstack_grow (&collect_obstack, "COLLECT_LTO_WRAPPER=", | |
6693 | sizeof ("COLLECT_LTO_WRAPPER=") - 1); | |
6694 | obstack_grow (&collect_obstack, lto_wrapper_spec, | |
6695 | strlen (lto_wrapper_spec) + 1); | |
6696 | xputenv (XOBFINISH (&collect_obstack, char *)); | |
6697 | } | |
6698 | ||
556cfe53 | 6699 | /* Reject switches that no pass was interested in. */ |
d7a9644e | 6700 | |
026f2c7a | 6701 | for (i = 0; (int) i < n_switches; i++) |
be2828ce | 6702 | if (! switches[i].validated) |
556cfe53 | 6703 | error ("unrecognized command line option %<-%s%>", switches[i].part1); |
d7a9644e | 6704 | |
1c1a1c70 | 6705 | /* Obey some of the options. */ |
6706 | ||
71cee7b1 | 6707 | if (print_search_dirs) |
6708 | { | |
c4328bcc | 6709 | printf (_("install: %s%s\n"), |
6710 | gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix, | |
6711 | gcc_exec_prefix ? "" : machine_suffix); | |
067277c3 | 6712 | printf (_("programs: %s\n"), |
6713 | build_search_list (&exec_prefixes, "", false, false)); | |
6714 | printf (_("libraries: %s\n"), | |
6715 | build_search_list (&startfile_prefixes, "", false, true)); | |
7f0b0c27 | 6716 | return (0); |
71cee7b1 | 6717 | } |
6718 | ||
1c1a1c70 | 6719 | if (print_file_name) |
5e3dea2b | 6720 | { |
1c1a1c70 | 6721 | printf ("%s\n", find_file (print_file_name)); |
7f0b0c27 | 6722 | return (0); |
5e3dea2b | 6723 | } |
6724 | ||
1c1a1c70 | 6725 | if (print_prog_name) |
6726 | { | |
c954ff02 | 6727 | char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK, 0); |
1c1a1c70 | 6728 | printf ("%s\n", (newname ? newname : print_prog_name)); |
7f0b0c27 | 6729 | return (0); |
1c1a1c70 | 6730 | } |
d7a9644e | 6731 | |
9577d478 | 6732 | if (print_multi_lib) |
6733 | { | |
6734 | print_multilib_info (); | |
7f0b0c27 | 6735 | return (0); |
9577d478 | 6736 | } |
6737 | ||
6738 | if (print_multi_directory) | |
6739 | { | |
6740 | if (multilib_dir == NULL) | |
6741 | printf (".\n"); | |
6742 | else | |
6743 | printf ("%s\n", multilib_dir); | |
7f0b0c27 | 6744 | return (0); |
9577d478 | 6745 | } |
6746 | ||
77adc39e | 6747 | if (print_multiarch) |
6748 | { | |
6749 | if (multiarch_dir == NULL) | |
6750 | printf ("\n"); | |
6751 | else | |
6752 | printf ("%s\n", multiarch_dir); | |
6753 | return (0); | |
6754 | } | |
6755 | ||
098cc23f | 6756 | if (print_sysroot) |
6757 | { | |
6758 | if (target_system_root) | |
6759 | { | |
6760 | if (target_sysroot_suffix) | |
6761 | printf ("%s%s\n", target_system_root, target_sysroot_suffix); | |
6762 | else | |
6763 | printf ("%s\n", target_system_root); | |
6764 | } | |
6765 | return (0); | |
6766 | } | |
6767 | ||
c954ff02 | 6768 | if (print_multi_os_directory) |
6769 | { | |
6770 | if (multilib_os_dir == NULL) | |
6771 | printf (".\n"); | |
6772 | else | |
6773 | printf ("%s\n", multilib_os_dir); | |
6774 | return (0); | |
6775 | } | |
6776 | ||
6ea4242f | 6777 | if (print_sysroot_headers_suffix) |
6778 | { | |
6779 | if (*sysroot_hdrs_suffix_spec) | |
6780 | { | |
021d874e | 6781 | printf("%s\n", (target_sysroot_hdrs_suffix |
6782 | ? target_sysroot_hdrs_suffix | |
6783 | : "")); | |
6ea4242f | 6784 | return (0); |
6785 | } | |
6786 | else | |
6787 | /* The error status indicates that only one set of fixed | |
6788 | headers should be built. */ | |
a922df2e | 6789 | fatal_error ("not configured with sysroot headers suffix"); |
6ea4242f | 6790 | } |
6791 | ||
8ace789a | 6792 | if (print_help_list) |
6793 | { | |
6794 | display_help (); | |
6795 | ||
6796 | if (! verbose_flag) | |
6797 | { | |
a4db0a1d | 6798 | printf (_("\nFor bug reporting instructions, please see:\n")); |
4b5ee00b | 6799 | printf ("%s.\n", bug_report_url); |
2c815aff | 6800 | |
7f0b0c27 | 6801 | return (0); |
8ace789a | 6802 | } |
6803 | ||
6804 | /* We do not exit here. Instead we have created a fake input file | |
6805 | called 'help-dummy' which needs to be compiled, and we pass this | |
0445c349 | 6806 | on the various sub-processes, along with the --help switch. |
6807 | Ensure their output appears after ours. */ | |
6808 | fputc ('\n', stdout); | |
6809 | fflush (stdout); | |
8ace789a | 6810 | } |
2c815aff | 6811 | |
39932bd2 | 6812 | if (print_version) |
6813 | { | |
460b8bb3 | 6814 | printf (_("%s %s%s\n"), progname, pkgversion_string, |
39932bd2 | 6815 | version_string); |
1f3894c9 | 6816 | printf ("Copyright %s 2013 Free Software Foundation, Inc.\n", |
39932bd2 | 6817 | _("(C)")); |
6818 | fputs (_("This is free software; see the source for copying conditions. There is NO\n\ | |
6819 | warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"), | |
6820 | stdout); | |
6821 | if (! verbose_flag) | |
6822 | return 0; | |
6823 | ||
6824 | /* We do not exit here. We use the same mechanism of --help to print | |
6825 | the version of the sub-processes. */ | |
6826 | fputc ('\n', stdout); | |
6827 | fflush (stdout); | |
6828 | } | |
6829 | ||
d7a9644e | 6830 | if (verbose_flag) |
6831 | { | |
e3ccb76d | 6832 | int n; |
d1cac662 | 6833 | const char *thrmod; |
e3ccb76d | 6834 | |
a922df2e | 6835 | fnotice (stderr, "Target: %s\n", spec_machine); |
6836 | fnotice (stderr, "Configured with: %s\n", configuration_arguments); | |
4a0e2d42 | 6837 | |
d1cac662 | 6838 | #ifdef THREAD_MODEL_SPEC |
6839 | /* We could have defined THREAD_MODEL_SPEC to "%*" by default, | |
6840 | but there's no point in doing all this processing just to get | |
6841 | thread_model back. */ | |
6842 | obstack_init (&obstack); | |
6843 | do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model); | |
6844 | obstack_1grow (&obstack, '\0'); | |
4fac984f | 6845 | thrmod = XOBFINISH (&obstack, const char *); |
d1cac662 | 6846 | #else |
6847 | thrmod = thread_model; | |
6848 | #endif | |
6849 | ||
a922df2e | 6850 | fnotice (stderr, "Thread model: %s\n", thrmod); |
6d72c630 | 6851 | |
e3ccb76d | 6852 | /* compiler_version is truncated at the first space when initialized |
6853 | from version string, so truncate version_string at the first space | |
6854 | before comparing. */ | |
6855 | for (n = 0; version_string[n]; n++) | |
6856 | if (version_string[n] == ' ') | |
6857 | break; | |
6858 | ||
6859 | if (! strncmp (version_string, compiler_version, n) | |
6860 | && compiler_version[n] == 0) | |
a922df2e | 6861 | fnotice (stderr, "gcc version %s %s\n", version_string, |
6862 | pkgversion_string); | |
845bccef | 6863 | else |
a922df2e | 6864 | fnotice (stderr, "gcc driver version %s %sexecuting gcc version %s\n", |
6865 | version_string, pkgversion_string, compiler_version); | |
845bccef | 6866 | |
d7a9644e | 6867 | if (n_infiles == 0) |
7f0b0c27 | 6868 | return (0); |
d7a9644e | 6869 | } |
6870 | ||
9e56255a | 6871 | if (n_infiles == added_libraries) |
a922df2e | 6872 | fatal_error ("no input files"); |
d7a9644e | 6873 | |
5585cfe8 | 6874 | if (seen_error ()) |
6875 | goto out; | |
6876 | ||
d7a9644e | 6877 | /* Make a place to record the compiler output file names |
6878 | that correspond to the input files. */ | |
6879 | ||
f9b7c0b9 | 6880 | i = n_infiles; |
5272ae11 | 6881 | i += lang_specific_extra_outfiles; |
4c36ffe6 | 6882 | outfiles = XCNEWVEC (const char *, i); |
d7a9644e | 6883 | |
6884 | /* Record which files were specified explicitly as link input. */ | |
6885 | ||
468329f6 | 6886 | explicit_link_files = XCNEWVEC (char, n_infiles); |
d7a9644e | 6887 | |
9dbb005d | 6888 | combine_inputs = have_o || flag_wpa; |
dc1dd09b | 6889 | |
6890 | for (i = 0; (int) i < n_infiles; i++) | |
40109983 | 6891 | { |
dc1dd09b | 6892 | const char *name = infiles[i].name; |
2f2c6aee | 6893 | struct compiler *compiler = lookup_compiler (name, |
6894 | strlen (name), | |
dc1dd09b | 6895 | infiles[i].language); |
2f2c6aee | 6896 | |
dc1dd09b | 6897 | if (compiler && !(compiler->combinable)) |
6898 | combine_inputs = false; | |
2f2c6aee | 6899 | |
dc1dd09b | 6900 | if (lang_n_infiles > 0 && compiler != input_file_compiler |
6901 | && infiles[i].language && infiles[i].language[0] != '*') | |
6902 | infiles[i].incompiler = compiler; | |
6903 | else if (compiler) | |
6904 | { | |
6905 | lang_n_infiles++; | |
6906 | input_file_compiler = compiler; | |
6907 | infiles[i].incompiler = compiler; | |
6908 | } | |
6909 | else | |
6910 | { | |
6911 | /* Since there is no compiler for this input file, assume it is a | |
0bed3869 | 6912 | linker file. */ |
dc1dd09b | 6913 | explicit_link_files[i] = 1; |
6914 | infiles[i].incompiler = NULL; | |
6915 | } | |
6916 | infiles[i].compiled = false; | |
6917 | infiles[i].preprocessed = false; | |
40109983 | 6918 | } |
1e8e9920 | 6919 | |
1c15f131 | 6920 | if (!combine_inputs && have_c && have_o && lang_n_infiles > 1) |
78d063c8 | 6921 | fatal_error ("cannot specify -o with -c, -S or -E with multiple files"); |
dc1dd09b | 6922 | |
6923 | for (i = 0; (int) i < n_infiles; i++) | |
d7a9644e | 6924 | { |
d7a9644e | 6925 | int this_file_error = 0; |
6926 | ||
6927 | /* Tell do_spec what to substitute for %i. */ | |
6928 | ||
d7a9644e | 6929 | input_file_number = i; |
397f1574 | 6930 | set_input (infiles[i].name); |
d7a9644e | 6931 | |
dc1dd09b | 6932 | if (infiles[i].compiled) |
6933 | continue; | |
6934 | ||
d7a9644e | 6935 | /* Use the same thing in %o, unless cp->spec says otherwise. */ |
6936 | ||
460b8bb3 | 6937 | outfiles[i] = gcc_input_filename; |
d7a9644e | 6938 | |
6939 | /* Figure out which compiler from the file's suffix. */ | |
6940 | ||
78d063c8 | 6941 | input_file_compiler |
6942 | = lookup_compiler (infiles[i].name, input_filename_length, | |
6943 | infiles[i].language); | |
3cfec666 | 6944 | |
96842e40 | 6945 | if (input_file_compiler) |
d7a9644e | 6946 | { |
6947 | /* Ok, we found an applicable compiler. Run its spec. */ | |
d7a9644e | 6948 | |
96842e40 | 6949 | if (input_file_compiler->spec[0] == '#') |
ce52dcfa | 6950 | { |
6951 | error ("%s: %s compiler not installed on this system", | |
460b8bb3 | 6952 | gcc_input_filename, &input_file_compiler->spec[1]); |
ce52dcfa | 6953 | this_file_error = 1; |
6954 | } | |
6955 | else | |
6956 | { | |
71278019 | 6957 | if (compare_debug) |
6958 | { | |
dd045aee | 6959 | free (debug_check_temp_file[0]); |
71278019 | 6960 | debug_check_temp_file[0] = NULL; |
6961 | ||
dd045aee | 6962 | free (debug_check_temp_file[1]); |
71278019 | 6963 | debug_check_temp_file[1] = NULL; |
6964 | } | |
6965 | ||
ce52dcfa | 6966 | value = do_spec (input_file_compiler->spec); |
dc1dd09b | 6967 | infiles[i].compiled = true; |
ce52dcfa | 6968 | if (value < 0) |
e40d30f5 | 6969 | this_file_error = 1; |
71278019 | 6970 | else if (compare_debug && debug_check_temp_file[0]) |
6971 | { | |
6972 | if (verbose_flag) | |
a922df2e | 6973 | inform (0, "recompiling with -fcompare-debug"); |
71278019 | 6974 | |
6975 | compare_debug = -compare_debug; | |
6976 | n_switches = n_switches_debug_check[1]; | |
4ff887c5 | 6977 | n_switches_alloc = n_switches_alloc_debug_check[1]; |
71278019 | 6978 | switches = switches_debug_check[1]; |
6979 | ||
6980 | value = do_spec (input_file_compiler->spec); | |
6981 | ||
6982 | compare_debug = -compare_debug; | |
6983 | n_switches = n_switches_debug_check[0]; | |
4ff887c5 | 6984 | n_switches_alloc = n_switches_alloc_debug_check[0]; |
71278019 | 6985 | switches = switches_debug_check[0]; |
6986 | ||
6987 | if (value < 0) | |
6988 | { | |
6989 | error ("during -fcompare-debug recompilation"); | |
6990 | this_file_error = 1; | |
6991 | } | |
6992 | ||
6993 | gcc_assert (debug_check_temp_file[1] | |
82715bcd | 6994 | && filename_cmp (debug_check_temp_file[0], |
6995 | debug_check_temp_file[1])); | |
71278019 | 6996 | |
6997 | if (verbose_flag) | |
a922df2e | 6998 | inform (0, "comparing final insns dumps"); |
71278019 | 6999 | |
7000 | if (compare_files (debug_check_temp_file)) | |
7001 | this_file_error = 1; | |
7002 | } | |
7003 | ||
7004 | if (compare_debug) | |
7005 | { | |
dd045aee | 7006 | free (debug_check_temp_file[0]); |
71278019 | 7007 | debug_check_temp_file[0] = NULL; |
7008 | ||
dd045aee | 7009 | free (debug_check_temp_file[1]); |
71278019 | 7010 | debug_check_temp_file[1] = NULL; |
7011 | } | |
ce52dcfa | 7012 | } |
d7a9644e | 7013 | } |
7014 | ||
7015 | /* If this file's name does not contain a recognized suffix, | |
7016 | record it as explicit linker input. */ | |
7017 | ||
7018 | else | |
7019 | explicit_link_files[i] = 1; | |
7020 | ||
7021 | /* Clear the delete-on-failure queue, deleting the files in it | |
7022 | if this compilation failed. */ | |
7023 | ||
7024 | if (this_file_error) | |
7025 | { | |
7026 | delete_failure_queue (); | |
460b8bb3 | 7027 | errorcount++; |
d7a9644e | 7028 | } |
7029 | /* If this compilation succeeded, don't delete those files later. */ | |
7030 | clear_failure_queue (); | |
7031 | } | |
7032 | ||
fbf54d9a | 7033 | /* Reset the input file name to the first compile/object file name, for use |
7034 | with %b in LINK_SPEC. We use the first input file that we can find | |
2f2c6aee | 7035 | a compiler to compile it instead of using infiles.language since for |
fbf54d9a | 7036 | languages other than C we use aliases that we then lookup later. */ |
397f1574 | 7037 | if (n_infiles > 0) |
fbf54d9a | 7038 | { |
7039 | int i; | |
7040 | ||
7041 | for (i = 0; i < n_infiles ; i++) | |
02d52d9e | 7042 | if (infiles[i].incompiler |
7043 | || (infiles[i].language && infiles[i].language[0] != '*')) | |
fbf54d9a | 7044 | { |
7045 | set_input (infiles[i].name); | |
7046 | break; | |
7047 | } | |
7048 | } | |
397f1574 | 7049 | |
460b8bb3 | 7050 | if (!seen_error ()) |
2b191381 | 7051 | { |
7052 | /* Make sure INPUT_FILE_NUMBER points to first available open | |
7053 | slot. */ | |
7054 | input_file_number = n_infiles; | |
7055 | if (lang_specific_pre_link ()) | |
460b8bb3 | 7056 | errorcount++; |
2b191381 | 7057 | } |
f9b7c0b9 | 7058 | |
573aba85 | 7059 | /* Determine if there are any linker input files. */ |
7060 | num_linker_inputs = 0; | |
7061 | for (i = 0; (int) i < n_infiles; i++) | |
7062 | if (explicit_link_files[i] || outfiles[i] != NULL) | |
7063 | num_linker_inputs++; | |
7064 | ||
d7a9644e | 7065 | /* Run ld to link all the compiler output files. */ |
7066 | ||
460b8bb3 | 7067 | if (num_linker_inputs > 0 && !seen_error () && print_subprocess_help < 2) |
d7a9644e | 7068 | { |
7069 | int tmp = execution_count; | |
1d784785 | 7070 | |
7071 | if (! have_c) | |
7072 | { | |
c5f741b3 | 7073 | #if HAVE_LTO_PLUGIN > 0 |
7074 | #if HAVE_LTO_PLUGIN == 2 | |
1d784785 | 7075 | const char *fno_use_linker_plugin = "fno-use-linker-plugin"; |
de4d280b | 7076 | #else |
1d784785 | 7077 | const char *fuse_linker_plugin = "fuse-linker-plugin"; |
c5f741b3 | 7078 | #endif |
de4d280b | 7079 | #endif |
8894538a | 7080 | |
1d784785 | 7081 | /* We'll use ld if we can't find collect2. */ |
7082 | if (! strcmp (linker_name_spec, "collect2")) | |
7083 | { | |
7084 | char *s = find_a_file (&exec_prefixes, "collect2", X_OK, false); | |
7085 | if (s == NULL) | |
7086 | linker_name_spec = "ld"; | |
7087 | } | |
7bfefa9d | 7088 | |
c5f741b3 | 7089 | #if HAVE_LTO_PLUGIN > 0 |
7090 | #if HAVE_LTO_PLUGIN == 2 | |
1d784785 | 7091 | if (!switch_matches (fno_use_linker_plugin, |
7092 | fno_use_linker_plugin | |
7093 | + strlen (fno_use_linker_plugin), 0)) | |
de4d280b | 7094 | #else |
1d784785 | 7095 | if (switch_matches (fuse_linker_plugin, |
7096 | fuse_linker_plugin | |
7097 | + strlen (fuse_linker_plugin), 0)) | |
de4d280b | 7098 | #endif |
1d784785 | 7099 | { |
40c059b1 | 7100 | char *temp_spec = find_a_file (&exec_prefixes, |
7101 | LTOPLUGINSONAME, R_OK, | |
7102 | false); | |
7103 | if (!temp_spec) | |
1d784785 | 7104 | fatal_error ("-fuse-linker-plugin, but %s not found", |
7105 | LTOPLUGINSONAME); | |
40c059b1 | 7106 | linker_plugin_file_spec = convert_white_space (temp_spec); |
1d784785 | 7107 | } |
c5f741b3 | 7108 | #endif |
1d784785 | 7109 | lto_gcc_spec = argv[0]; |
7110 | } | |
7bfefa9d | 7111 | |
8894538a | 7112 | /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables |
7113 | for collect. */ | |
067277c3 | 7114 | putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH", false); |
7115 | putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV, true); | |
8894538a | 7116 | |
ceac8e8c | 7117 | if (print_subprocess_help == 1) |
7118 | { | |
7119 | printf (_("\nLinker options\n==============\n\n")); | |
7120 | printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\"" | |
7121 | " to the linker.\n\n")); | |
7122 | fflush (stdout); | |
7123 | } | |
d7a9644e | 7124 | value = do_spec (link_command_spec); |
7125 | if (value < 0) | |
460b8bb3 | 7126 | errorcount = 1; |
d7a9644e | 7127 | linker_was_run = (tmp != execution_count); |
7128 | } | |
7129 | ||
d7a9644e | 7130 | /* If options said don't run linker, |
7131 | complain about input files to be given to the linker. */ | |
7132 | ||
460b8bb3 | 7133 | if (! linker_was_run && !seen_error ()) |
026f2c7a | 7134 | for (i = 0; (int) i < n_infiles; i++) |
3293d046 | 7135 | if (explicit_link_files[i] |
7136 | && !(infiles[i].language && infiles[i].language[0] == '*')) | |
a922df2e | 7137 | warning (0, "%s: linker input file unused because linking not done", |
7138 | outfiles[i]); | |
d7a9644e | 7139 | |
7140 | /* Delete some or all of the temporary files we made. */ | |
7141 | ||
460b8bb3 | 7142 | if (seen_error ()) |
d7a9644e | 7143 | delete_failure_queue (); |
7144 | delete_temp_files (); | |
7145 | ||
8ace789a | 7146 | if (print_help_list) |
7147 | { | |
a4db0a1d | 7148 | printf (("\nFor bug reporting instructions, please see:\n")); |
4b5ee00b | 7149 | printf ("%s\n", bug_report_url); |
8ace789a | 7150 | } |
2c815aff | 7151 | |
5585cfe8 | 7152 | out: |
155b05dc | 7153 | return (signal_count != 0 ? 2 |
460b8bb3 | 7154 | : seen_error () ? (pass_exit_codes ? greatest_status : 1) |
155b05dc | 7155 | : 0); |
d7a9644e | 7156 | } |
7157 | ||
7158 | /* Find the proper compilation spec for the file name NAME, | |
a45072dd | 7159 | whose length is LENGTH. LANGUAGE is the specified language, |
997d68fe | 7160 | or 0 if this file is to be passed to the linker. */ |
d7a9644e | 7161 | |
7162 | static struct compiler * | |
952f0048 | 7163 | lookup_compiler (const char *name, size_t length, const char *language) |
d7a9644e | 7164 | { |
7165 | struct compiler *cp; | |
7166 | ||
d4ea3b1f | 7167 | /* If this was specified by the user to be a linker input, indicate that. */ |
997d68fe | 7168 | if (language != 0 && language[0] == '*') |
7169 | return 0; | |
7170 | ||
7171 | /* Otherwise, look for the language, if one is spec'd. */ | |
d7a9644e | 7172 | if (language != 0) |
7173 | { | |
7174 | for (cp = compilers + n_compilers - 1; cp >= compilers; cp--) | |
997d68fe | 7175 | if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language)) |
7176 | return cp; | |
7177 | ||
d7a9644e | 7178 | error ("language %s not recognized", language); |
997d68fe | 7179 | return 0; |
d7a9644e | 7180 | } |
7181 | ||
7182 | /* Look for a suffix. */ | |
7183 | for (cp = compilers + n_compilers - 1; cp >= compilers; cp--) | |
7184 | { | |
a3102c3c | 7185 | if (/* The suffix `-' matches only the file name `-'. */ |
7186 | (!strcmp (cp->suffix, "-") && !strcmp (name, "-")) | |
997d68fe | 7187 | || (strlen (cp->suffix) < length |
7188 | /* See if the suffix matches the end of NAME. */ | |
997d68fe | 7189 | && !strcmp (cp->suffix, |
7190 | name + length - strlen (cp->suffix)) | |
997d68fe | 7191 | )) |
3cfec666 | 7192 | break; |
22869eeb | 7193 | } |
997d68fe | 7194 | |
22869eeb | 7195 | #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM) |
aab2cf92 | 7196 | /* Look again, but case-insensitively this time. */ |
22869eeb | 7197 | if (cp < compilers) |
7198 | for (cp = compilers + n_compilers - 1; cp >= compilers; cp--) | |
7199 | { | |
7200 | if (/* The suffix `-' matches only the file name `-'. */ | |
7201 | (!strcmp (cp->suffix, "-") && !strcmp (name, "-")) | |
7202 | || (strlen (cp->suffix) < length | |
7203 | /* See if the suffix matches the end of NAME. */ | |
7204 | && ((!strcmp (cp->suffix, | |
7205 | name + length - strlen (cp->suffix)) | |
7206 | || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")) | |
7207 | && !strcasecmp (cp->suffix, | |
7208 | name + length - strlen (cp->suffix))) | |
7209 | )) | |
7210 | break; | |
7211 | } | |
7212 | #endif | |
7213 | ||
22869eeb | 7214 | if (cp >= compilers) |
7215 | { | |
1cf79a1a | 7216 | if (cp->spec[0] != '@') |
7217 | /* A non-alias entry: return it. */ | |
7218 | return cp; | |
2c815aff | 7219 | |
1cf79a1a | 7220 | /* An alias entry maps a suffix to a language. |
7221 | Search for the language; pass 0 for NAME and LENGTH | |
7222 | to avoid infinite recursion if language not found. */ | |
d946ea19 | 7223 | return lookup_compiler (NULL, 0, cp->spec + 1); |
d7a9644e | 7224 | } |
d7a9644e | 7225 | return 0; |
7226 | } | |
7227 | \f | |
d7a9644e | 7228 | static char * |
952f0048 | 7229 | save_string (const char *s, int len) |
d7a9644e | 7230 | { |
4c36ffe6 | 7231 | char *result = XNEWVEC (char, len + 1); |
d7a9644e | 7232 | |
d5130039 | 7233 | memcpy (result, s, len); |
d7a9644e | 7234 | result[len] = 0; |
7235 | return result; | |
7236 | } | |
7237 | ||
833a5c07 | 7238 | void |
952f0048 | 7239 | pfatal_with_name (const char *name) |
d7a9644e | 7240 | { |
be2828ce | 7241 | perror_with_name (name); |
7242 | delete_temp_files (); | |
7243 | exit (1); | |
d7a9644e | 7244 | } |
7245 | ||
7246 | static void | |
952f0048 | 7247 | perror_with_name (const char *name) |
d7a9644e | 7248 | { |
a8c464ac | 7249 | error ("%s: %m", name); |
d7a9644e | 7250 | } |
d7a9644e | 7251 | \f |
805e22b2 | 7252 | static inline void |
556cfe53 | 7253 | validate_switches_from_spec (const char *spec, bool user) |
805e22b2 | 7254 | { |
7255 | const char *p = spec; | |
7256 | char c; | |
7257 | while ((c = *p++)) | |
7258 | if (c == '%' && (*p == '{' || *p == '<' || (*p == 'W' && *++p == '{'))) | |
7259 | /* We have a switch spec. */ | |
556cfe53 | 7260 | p = validate_switches (p + 1, user); |
805e22b2 | 7261 | } |
7262 | ||
d7a9644e | 7263 | static void |
952f0048 | 7264 | validate_all_switches (void) |
d7a9644e | 7265 | { |
7266 | struct compiler *comp; | |
8894538a | 7267 | struct spec_list *spec; |
d7a9644e | 7268 | |
1cf79a1a | 7269 | for (comp = compilers; comp->spec; comp++) |
556cfe53 | 7270 | validate_switches_from_spec (comp->spec, false); |
d7a9644e | 7271 | |
d4ea3b1f | 7272 | /* Look through the linked list of specs read from the specs file. */ |
026f2c7a | 7273 | for (spec = specs; spec; spec = spec->next) |
556cfe53 | 7274 | validate_switches_from_spec (*spec->ptr_spec, spec->user_p); |
8894538a | 7275 | |
556cfe53 | 7276 | validate_switches_from_spec (link_command_spec, false); |
d7a9644e | 7277 | } |
7278 | ||
7279 | /* Look at the switch-name that comes after START | |
7280 | and mark as valid all supplied switches that match it. */ | |
7281 | ||
805e22b2 | 7282 | static const char * |
556cfe53 | 7283 | validate_switches (const char *start, bool user_spec) |
d7a9644e | 7284 | { |
19cb6b50 | 7285 | const char *p = start; |
805e22b2 | 7286 | const char *atom; |
7287 | size_t len; | |
19cb6b50 | 7288 | int i; |
805e22b2 | 7289 | bool suffix = false; |
7290 | bool starred = false; | |
952f0048 | 7291 | |
805e22b2 | 7292 | #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0) |
952f0048 | 7293 | |
dead3293 | 7294 | next_member: |
805e22b2 | 7295 | SKIP_WHITE (); |
7296 | ||
d7a9644e | 7297 | if (*p == '!') |
805e22b2 | 7298 | p++; |
d7a9644e | 7299 | |
805e22b2 | 7300 | SKIP_WHITE (); |
90e35d1a | 7301 | if (*p == '.' || *p == ',') |
805e22b2 | 7302 | suffix = true, p++; |
d7a9644e | 7303 | |
805e22b2 | 7304 | atom = p; |
7305 | while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '=' | |
9a4a603c | 7306 | || *p == ',' || *p == '.' || *p == '@') |
026f2c7a | 7307 | p++; |
805e22b2 | 7308 | len = p - atom; |
d7a9644e | 7309 | |
805e22b2 | 7310 | if (*p == '*') |
7311 | starred = true, p++; | |
7312 | ||
7313 | SKIP_WHITE (); | |
7314 | ||
7315 | if (!suffix) | |
d7a9644e | 7316 | { |
7317 | /* Mark all matching switches as valid. */ | |
d7a9644e | 7318 | for (i = 0; i < n_switches; i++) |
805e22b2 | 7319 | if (!strncmp (switches[i].part1, atom, len) |
556cfe53 | 7320 | && (starred || switches[i].part1[len] == '\0') |
7321 | && (switches[i].known || user_spec)) | |
7322 | switches[i].validated = true; | |
d7a9644e | 7323 | } |
805e22b2 | 7324 | |
49aaac6f | 7325 | if (*p) p++; |
7326 | if (*p && (p[-1] == '|' || p[-1] == '&')) | |
805e22b2 | 7327 | goto next_member; |
7328 | ||
49aaac6f | 7329 | if (*p && p[-1] == ':') |
d7a9644e | 7330 | { |
805e22b2 | 7331 | while (*p && *p != ';' && *p != '}') |
d7a9644e | 7332 | { |
805e22b2 | 7333 | if (*p == '%') |
7334 | { | |
7335 | p++; | |
7336 | if (*p == '{' || *p == '<') | |
556cfe53 | 7337 | p = validate_switches (p+1, user_spec); |
805e22b2 | 7338 | else if (p[0] == 'W' && p[1] == '{') |
556cfe53 | 7339 | p = validate_switches (p+2, user_spec); |
805e22b2 | 7340 | } |
41b8b07e | 7341 | else |
7342 | p++; | |
d7a9644e | 7343 | } |
805e22b2 | 7344 | |
49aaac6f | 7345 | if (*p) p++; |
7346 | if (*p && p[-1] == ';') | |
805e22b2 | 7347 | goto next_member; |
d7a9644e | 7348 | } |
dead3293 | 7349 | |
805e22b2 | 7350 | return p; |
7351 | #undef SKIP_WHITE | |
d7a9644e | 7352 | } |
9577d478 | 7353 | \f |
c954ff02 | 7354 | struct mdswitchstr |
7355 | { | |
7356 | const char *str; | |
7357 | int len; | |
7358 | }; | |
7359 | ||
7360 | static struct mdswitchstr *mdswitches; | |
7361 | static int n_mdswitches; | |
7362 | ||
3d97d965 | 7363 | /* Check whether a particular argument was used. The first time we |
ad87de1e | 7364 | canonicalize the switches to keep only the ones we care about. */ |
9577d478 | 7365 | |
7366 | static int | |
952f0048 | 7367 | used_arg (const char *p, int len) |
9577d478 | 7368 | { |
d4ea3b1f | 7369 | struct mswitchstr |
7370 | { | |
e772a198 | 7371 | const char *str; |
7372 | const char *replace; | |
3d97d965 | 7373 | int len; |
7374 | int rep_len; | |
7375 | }; | |
7376 | ||
7377 | static struct mswitchstr *mswitches; | |
7378 | static int n_mswitches; | |
7379 | int i, j; | |
7380 | ||
7381 | if (!mswitches) | |
7382 | { | |
7383 | struct mswitchstr *matches; | |
e772a198 | 7384 | const char *q; |
d0fdc842 | 7385 | int cnt = 0; |
3d97d965 | 7386 | |
026f2c7a | 7387 | /* Break multilib_matches into the component strings of string |
7388 | and replacement string. */ | |
c4fa40de | 7389 | for (q = multilib_matches; *q != '\0'; q++) |
7390 | if (*q == ';') | |
3d97d965 | 7391 | cnt++; |
7392 | ||
25a1c410 | 7393 | matches |
7394 | = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt); | |
3d97d965 | 7395 | i = 0; |
7396 | q = multilib_matches; | |
7397 | while (*q != '\0') | |
7398 | { | |
7399 | matches[i].str = q; | |
7400 | while (*q != ' ') | |
7401 | { | |
7402 | if (*q == '\0') | |
5e8f3c31 | 7403 | { |
7404 | invalid_matches: | |
a8c464ac | 7405 | fatal_error ("multilib spec %qs is invalid", |
a922df2e | 7406 | multilib_matches); |
5e8f3c31 | 7407 | } |
3d97d965 | 7408 | q++; |
7409 | } | |
3d97d965 | 7410 | matches[i].len = q - matches[i].str; |
9577d478 | 7411 | |
3d97d965 | 7412 | matches[i].replace = ++q; |
7413 | while (*q != ';' && *q != '\0') | |
7414 | { | |
7415 | if (*q == ' ') | |
5e8f3c31 | 7416 | goto invalid_matches; |
3d97d965 | 7417 | q++; |
7418 | } | |
7419 | matches[i].rep_len = q - matches[i].replace; | |
7420 | i++; | |
401574b8 | 7421 | if (*q == ';') |
7422 | q++; | |
3d97d965 | 7423 | } |
9577d478 | 7424 | |
0a4dc6a9 | 7425 | /* Now build a list of the replacement string for switches that we care |
7426 | about. Make sure we allocate at least one entry. This prevents | |
7427 | xmalloc from calling fatal, and prevents us from re-executing this | |
7428 | block of code. */ | |
7429 | mswitches | |
4c36ffe6 | 7430 | = XNEWVEC (struct mswitchstr, n_mdswitches + (n_switches ? n_switches : 1)); |
3d97d965 | 7431 | for (i = 0; i < n_switches; i++) |
79d52444 | 7432 | if ((switches[i].live_cond & SWITCH_IGNORE) == 0) |
0c76b21e | 7433 | { |
7434 | int xlen = strlen (switches[i].part1); | |
7435 | for (j = 0; j < cnt; j++) | |
7436 | if (xlen == matches[j].len | |
7437 | && ! strncmp (switches[i].part1, matches[j].str, xlen)) | |
7438 | { | |
7439 | mswitches[n_mswitches].str = matches[j].replace; | |
7440 | mswitches[n_mswitches].len = matches[j].rep_len; | |
7441 | mswitches[n_mswitches].replace = (char *) 0; | |
7442 | mswitches[n_mswitches].rep_len = 0; | |
7443 | n_mswitches++; | |
7444 | break; | |
7445 | } | |
7446 | } | |
c954ff02 | 7447 | |
7448 | /* Add MULTILIB_DEFAULTS switches too, as long as they were not present | |
7449 | on the command line nor any options mutually incompatible with | |
7450 | them. */ | |
7451 | for (i = 0; i < n_mdswitches; i++) | |
7452 | { | |
7453 | const char *r; | |
7454 | ||
7455 | for (q = multilib_options; *q != '\0'; q++) | |
7456 | { | |
7457 | while (*q == ' ') | |
7458 | q++; | |
7459 | ||
7460 | r = q; | |
7461 | while (strncmp (q, mdswitches[i].str, mdswitches[i].len) != 0 | |
7462 | || strchr (" /", q[mdswitches[i].len]) == NULL) | |
7463 | { | |
7464 | while (*q != ' ' && *q != '/' && *q != '\0') | |
7465 | q++; | |
7466 | if (*q != '/') | |
7467 | break; | |
7468 | q++; | |
7469 | } | |
7470 | ||
7471 | if (*q != ' ' && *q != '\0') | |
7472 | { | |
7473 | while (*r != ' ' && *r != '\0') | |
7474 | { | |
7475 | q = r; | |
7476 | while (*q != ' ' && *q != '/' && *q != '\0') | |
7477 | q++; | |
7478 | ||
7479 | if (used_arg (r, q - r)) | |
7480 | break; | |
7481 | ||
7482 | if (*q != '/') | |
7483 | { | |
7484 | mswitches[n_mswitches].str = mdswitches[i].str; | |
7485 | mswitches[n_mswitches].len = mdswitches[i].len; | |
7486 | mswitches[n_mswitches].replace = (char *) 0; | |
7487 | mswitches[n_mswitches].rep_len = 0; | |
7488 | n_mswitches++; | |
7489 | break; | |
7490 | } | |
7491 | ||
7492 | r = q + 1; | |
7493 | } | |
7494 | break; | |
7495 | } | |
7496 | } | |
7497 | } | |
3d97d965 | 7498 | } |
48583106 | 7499 | |
3d97d965 | 7500 | for (i = 0; i < n_mswitches; i++) |
7501 | if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len)) | |
7502 | return 1; | |
48583106 | 7503 | |
3d97d965 | 7504 | return 0; |
7505 | } | |
48583106 | 7506 | |
7507 | static int | |
952f0048 | 7508 | default_arg (const char *p, int len) |
48583106 | 7509 | { |
c954ff02 | 7510 | int i; |
618c6dbb | 7511 | |
c954ff02 | 7512 | for (i = 0; i < n_mdswitches; i++) |
7513 | if (len == mdswitches[i].len && ! strncmp (p, mdswitches[i].str, len)) | |
7514 | return 1; | |
48583106 | 7515 | |
7516 | return 0; | |
7517 | } | |
7518 | ||
54518c3b | 7519 | /* Work out the subdirectory to use based on the options. The format of |
7520 | multilib_select is a list of elements. Each element is a subdirectory | |
7521 | name followed by a list of options followed by a semicolon. The format | |
7522 | of multilib_exclusions is the same, but without the preceding | |
7523 | directory. First gcc will check the exclusions, if none of the options | |
7524 | beginning with an exclamation point are present, and all of the other | |
7525 | options are present, then we will ignore this completely. Passing | |
7526 | that, gcc will consider each multilib_select in turn using the same | |
7527 | rules for matching the options. If a match is found, that subdirectory | |
77adc39e | 7528 | will be used. |
7529 | A subdirectory name is optionally followed by a colon and the corresponding | |
7530 | multiarch name. */ | |
9577d478 | 7531 | |
7532 | static void | |
952f0048 | 7533 | set_multilib_dir (void) |
9577d478 | 7534 | { |
e772a198 | 7535 | const char *p; |
d4ea3b1f | 7536 | unsigned int this_path_len; |
e772a198 | 7537 | const char *this_path, *this_arg; |
c954ff02 | 7538 | const char *start, *end; |
48583106 | 7539 | int not_arg; |
c954ff02 | 7540 | int ok, ndfltok, first; |
7541 | ||
7542 | n_mdswitches = 0; | |
7543 | start = multilib_defaults; | |
7544 | while (*start == ' ' || *start == '\t') | |
7545 | start++; | |
7546 | while (*start != '\0') | |
7547 | { | |
7548 | n_mdswitches++; | |
7549 | while (*start != ' ' && *start != '\t' && *start != '\0') | |
7550 | start++; | |
7551 | while (*start == ' ' || *start == '\t') | |
7552 | start++; | |
7553 | } | |
7554 | ||
7555 | if (n_mdswitches) | |
7556 | { | |
7557 | int i = 0; | |
7558 | ||
4c36ffe6 | 7559 | mdswitches = XNEWVEC (struct mdswitchstr, n_mdswitches); |
c954ff02 | 7560 | for (start = multilib_defaults; *start != '\0'; start = end + 1) |
7561 | { | |
7562 | while (*start == ' ' || *start == '\t') | |
7563 | start++; | |
7564 | ||
7565 | if (*start == '\0') | |
7566 | break; | |
952f0048 | 7567 | |
c954ff02 | 7568 | for (end = start + 1; |
7569 | *end != ' ' && *end != '\t' && *end != '\0'; end++) | |
7570 | ; | |
7571 | ||
7572 | obstack_grow (&multilib_obstack, start, end - start); | |
7573 | obstack_1grow (&multilib_obstack, 0); | |
4fac984f | 7574 | mdswitches[i].str = XOBFINISH (&multilib_obstack, const char *); |
c954ff02 | 7575 | mdswitches[i++].len = end - start; |
7576 | ||
7577 | if (*end == '\0') | |
7578 | break; | |
7579 | } | |
7580 | } | |
9577d478 | 7581 | |
54518c3b | 7582 | p = multilib_exclusions; |
7583 | while (*p != '\0') | |
7584 | { | |
7585 | /* Ignore newlines. */ | |
7586 | if (*p == '\n') | |
026f2c7a | 7587 | { |
7588 | ++p; | |
7589 | continue; | |
7590 | } | |
54518c3b | 7591 | |
7592 | /* Check the arguments. */ | |
7593 | ok = 1; | |
7594 | while (*p != ';') | |
026f2c7a | 7595 | { |
7596 | if (*p == '\0') | |
5e8f3c31 | 7597 | { |
7598 | invalid_exclusions: | |
a8c464ac | 7599 | fatal_error ("multilib exclusions %qs is invalid", |
a922df2e | 7600 | multilib_exclusions); |
5e8f3c31 | 7601 | } |
026f2c7a | 7602 | |
7603 | if (! ok) | |
7604 | { | |
7605 | ++p; | |
7606 | continue; | |
7607 | } | |
7608 | ||
7609 | this_arg = p; | |
7610 | while (*p != ' ' && *p != ';') | |
7611 | { | |
7612 | if (*p == '\0') | |
5e8f3c31 | 7613 | goto invalid_exclusions; |
026f2c7a | 7614 | ++p; |
7615 | } | |
7616 | ||
7617 | if (*this_arg != '!') | |
7618 | not_arg = 0; | |
7619 | else | |
7620 | { | |
7621 | not_arg = 1; | |
7622 | ++this_arg; | |
7623 | } | |
2c815aff | 7624 | |
54518c3b | 7625 | ok = used_arg (this_arg, p - this_arg); |
7626 | if (not_arg) | |
7627 | ok = ! ok; | |
7628 | ||
026f2c7a | 7629 | if (*p == ' ') |
7630 | ++p; | |
7631 | } | |
54518c3b | 7632 | |
7633 | if (ok) | |
d4ea3b1f | 7634 | return; |
54518c3b | 7635 | |
7636 | ++p; | |
7637 | } | |
7638 | ||
c954ff02 | 7639 | first = 1; |
54518c3b | 7640 | p = multilib_select; |
7137cdac | 7641 | |
7642 | /* Append multilib reuse rules if any. With those rules, we can reuse | |
7643 | one multilib for certain different options sets. */ | |
7644 | if (strlen (multilib_reuse) > 0) | |
7645 | p = concat (p, multilib_reuse, NULL); | |
7646 | ||
9577d478 | 7647 | while (*p != '\0') |
7648 | { | |
7649 | /* Ignore newlines. */ | |
7650 | if (*p == '\n') | |
7651 | { | |
7652 | ++p; | |
7653 | continue; | |
7654 | } | |
7655 | ||
7656 | /* Get the initial path. */ | |
7657 | this_path = p; | |
7658 | while (*p != ' ') | |
7659 | { | |
7660 | if (*p == '\0') | |
5e8f3c31 | 7661 | { |
7662 | invalid_select: | |
7137cdac | 7663 | fatal_error ("multilib select %qs %qs is invalid", |
7664 | multilib_select, multilib_reuse); | |
5e8f3c31 | 7665 | } |
9577d478 | 7666 | ++p; |
7667 | } | |
7668 | this_path_len = p - this_path; | |
7669 | ||
7670 | /* Check the arguments. */ | |
48583106 | 7671 | ok = 1; |
c954ff02 | 7672 | ndfltok = 1; |
9577d478 | 7673 | ++p; |
7674 | while (*p != ';') | |
7675 | { | |
7676 | if (*p == '\0') | |
5e8f3c31 | 7677 | goto invalid_select; |
9577d478 | 7678 | |
48583106 | 7679 | if (! ok) |
9577d478 | 7680 | { |
7681 | ++p; | |
7682 | continue; | |
7683 | } | |
7684 | ||
7685 | this_arg = p; | |
7686 | while (*p != ' ' && *p != ';') | |
7687 | { | |
7688 | if (*p == '\0') | |
5e8f3c31 | 7689 | goto invalid_select; |
9577d478 | 7690 | ++p; |
7691 | } | |
7692 | ||
48583106 | 7693 | if (*this_arg != '!') |
7694 | not_arg = 0; | |
9577d478 | 7695 | else |
48583106 | 7696 | { |
7697 | not_arg = 1; | |
7698 | ++this_arg; | |
7699 | } | |
7700 | ||
7701 | /* If this is a default argument, we can just ignore it. | |
7702 | This is true even if this_arg begins with '!'. Beginning | |
7703 | with '!' does not mean that this argument is necessarily | |
7704 | inappropriate for this library: it merely means that | |
7705 | there is a more specific library which uses this | |
7706 | argument. If this argument is a default, we need not | |
7707 | consider that more specific library. */ | |
c954ff02 | 7708 | ok = used_arg (this_arg, p - this_arg); |
7709 | if (not_arg) | |
7710 | ok = ! ok; | |
7711 | ||
7712 | if (! ok) | |
7713 | ndfltok = 0; | |
7714 | ||
7715 | if (default_arg (this_arg, p - this_arg)) | |
7716 | ok = 1; | |
9577d478 | 7717 | |
7718 | if (*p == ' ') | |
7719 | ++p; | |
7720 | } | |
7721 | ||
c954ff02 | 7722 | if (ok && first) |
9577d478 | 7723 | { |
7724 | if (this_path_len != 1 | |
7725 | || this_path[0] != '.') | |
7726 | { | |
4c36ffe6 | 7727 | char *new_multilib_dir = XNEWVEC (char, this_path_len + 1); |
c954ff02 | 7728 | char *q; |
7729 | ||
e40d43cc | 7730 | strncpy (new_multilib_dir, this_path, this_path_len); |
7731 | new_multilib_dir[this_path_len] = '\0'; | |
c954ff02 | 7732 | q = strchr (new_multilib_dir, ':'); |
7733 | if (q != NULL) | |
7734 | *q = '\0'; | |
e40d43cc | 7735 | multilib_dir = new_multilib_dir; |
9577d478 | 7736 | } |
c954ff02 | 7737 | first = 0; |
7738 | } | |
7739 | ||
7740 | if (ndfltok) | |
7741 | { | |
7742 | const char *q = this_path, *end = this_path + this_path_len; | |
7743 | ||
7744 | while (q < end && *q != ':') | |
7745 | q++; | |
a2770a85 | 7746 | if (q < end) |
c954ff02 | 7747 | { |
77adc39e | 7748 | const char *q2 = q + 1, *ml_end = end; |
7749 | char *new_multilib_os_dir; | |
7750 | ||
7751 | while (q2 < end && *q2 != ':') | |
7752 | q2++; | |
7753 | if (*q2 == ':') | |
7754 | ml_end = q2; | |
7755 | new_multilib_os_dir = XNEWVEC (char, ml_end - q); | |
7756 | memcpy (new_multilib_os_dir, q + 1, ml_end - q - 1); | |
7757 | new_multilib_os_dir[ml_end - q - 1] = '\0'; | |
7758 | multilib_os_dir = *new_multilib_os_dir ? new_multilib_os_dir : "."; | |
7759 | ||
7760 | if (q2 < end && *q2 == ':') | |
7761 | { | |
7762 | char *new_multiarch_dir = XNEWVEC (char, end - q2); | |
7763 | memcpy (new_multiarch_dir, q2 + 1, end - q2 - 1); | |
7764 | new_multiarch_dir[end - q2 - 1] = '\0'; | |
7765 | multiarch_dir = new_multiarch_dir; | |
7766 | } | |
c954ff02 | 7767 | break; |
7768 | } | |
9577d478 | 7769 | } |
7770 | ||
7771 | ++p; | |
2c815aff | 7772 | } |
c954ff02 | 7773 | |
7774 | if (multilib_dir == NULL && multilib_os_dir != NULL | |
7775 | && strcmp (multilib_os_dir, ".") == 0) | |
7776 | { | |
e47a6f81 | 7777 | free (CONST_CAST (char *, multilib_os_dir)); |
c954ff02 | 7778 | multilib_os_dir = NULL; |
7779 | } | |
7780 | else if (multilib_dir != NULL && multilib_os_dir == NULL) | |
7781 | multilib_os_dir = multilib_dir; | |
9577d478 | 7782 | } |
7783 | ||
7784 | /* Print out the multiple library subdirectory selection | |
7785 | information. This prints out a series of lines. Each line looks | |
7786 | like SUBDIRECTORY;@OPTION@OPTION, with as many options as is | |
7787 | required. Only the desired options are printed out, the negative | |
7788 | matches. The options are print without a leading dash. There are | |
7789 | no spaces to make it easy to use the information in the shell. | |
7790 | Each subdirectory is printed only once. This assumes the ordering | |
54518c3b | 7791 | generated by the genmultilib script. Also, we leave out ones that match |
7792 | the exclusions. */ | |
9577d478 | 7793 | |
7794 | static void | |
952f0048 | 7795 | print_multilib_info (void) |
9577d478 | 7796 | { |
e772a198 | 7797 | const char *p = multilib_select; |
7798 | const char *last_path = 0, *this_path; | |
48583106 | 7799 | int skip; |
d4ea3b1f | 7800 | unsigned int last_path_len = 0; |
9577d478 | 7801 | |
7802 | while (*p != '\0') | |
7803 | { | |
54518c3b | 7804 | skip = 0; |
9577d478 | 7805 | /* Ignore newlines. */ |
7806 | if (*p == '\n') | |
7807 | { | |
7808 | ++p; | |
7809 | continue; | |
7810 | } | |
7811 | ||
7812 | /* Get the initial path. */ | |
7813 | this_path = p; | |
7814 | while (*p != ' ') | |
7815 | { | |
7816 | if (*p == '\0') | |
5e8f3c31 | 7817 | { |
7818 | invalid_select: | |
a8c464ac | 7819 | fatal_error ("multilib select %qs is invalid", multilib_select); |
5e8f3c31 | 7820 | } |
2f2c6aee | 7821 | |
9577d478 | 7822 | ++p; |
7823 | } | |
7824 | ||
a2770a85 | 7825 | /* When --disable-multilib was used but target defines |
77adc39e | 7826 | MULTILIB_OSDIRNAMES, entries starting with .: (and not starting |
7827 | with .:: for multiarch configurations) are there just to find | |
7828 | multilib_os_dir, so skip them from output. */ | |
7829 | if (this_path[0] == '.' && this_path[1] == ':' && this_path[2] != ':') | |
a2770a85 | 7830 | skip = 1; |
7831 | ||
54518c3b | 7832 | /* Check for matches with the multilib_exclusions. We don't bother |
7833 | with the '!' in either list. If any of the exclusion rules match | |
7834 | all of its options with the select rule, we skip it. */ | |
026f2c7a | 7835 | { |
7836 | const char *e = multilib_exclusions; | |
7837 | const char *this_arg; | |
54518c3b | 7838 | |
026f2c7a | 7839 | while (*e != '\0') |
7840 | { | |
7841 | int m = 1; | |
7842 | /* Ignore newlines. */ | |
7843 | if (*e == '\n') | |
7844 | { | |
7845 | ++e; | |
7846 | continue; | |
7847 | } | |
54518c3b | 7848 | |
026f2c7a | 7849 | /* Check the arguments. */ |
7850 | while (*e != ';') | |
7851 | { | |
7852 | const char *q; | |
7853 | int mp = 0; | |
54518c3b | 7854 | |
026f2c7a | 7855 | if (*e == '\0') |
5e8f3c31 | 7856 | { |
7857 | invalid_exclusion: | |
a8c464ac | 7858 | fatal_error ("multilib exclusion %qs is invalid", |
a922df2e | 7859 | multilib_exclusions); |
5e8f3c31 | 7860 | } |
2c815aff | 7861 | |
026f2c7a | 7862 | if (! m) |
7863 | { | |
7864 | ++e; | |
7865 | continue; | |
7866 | } | |
54518c3b | 7867 | |
026f2c7a | 7868 | this_arg = e; |
2c815aff | 7869 | |
026f2c7a | 7870 | while (*e != ' ' && *e != ';') |
7871 | { | |
7872 | if (*e == '\0') | |
5e8f3c31 | 7873 | goto invalid_exclusion; |
026f2c7a | 7874 | ++e; |
7875 | } | |
54518c3b | 7876 | |
026f2c7a | 7877 | q = p + 1; |
7878 | while (*q != ';') | |
7879 | { | |
7880 | const char *arg; | |
7881 | int len = e - this_arg; | |
54518c3b | 7882 | |
026f2c7a | 7883 | if (*q == '\0') |
5e8f3c31 | 7884 | goto invalid_select; |
54518c3b | 7885 | |
026f2c7a | 7886 | arg = q; |
7887 | ||
7888 | while (*q != ' ' && *q != ';') | |
7889 | { | |
7890 | if (*q == '\0') | |
5e8f3c31 | 7891 | goto invalid_select; |
54518c3b | 7892 | ++q; |
026f2c7a | 7893 | } |
54518c3b | 7894 | |
5e8f3c31 | 7895 | if (! strncmp (arg, this_arg, |
7896 | (len < q - arg) ? q - arg : len) | |
7897 | || default_arg (this_arg, e - this_arg)) | |
026f2c7a | 7898 | { |
7899 | mp = 1; | |
7900 | break; | |
7901 | } | |
54518c3b | 7902 | |
026f2c7a | 7903 | if (*q == ' ') |
7904 | ++q; | |
7905 | } | |
2c815aff | 7906 | |
026f2c7a | 7907 | if (! mp) |
7908 | m = 0; | |
54518c3b | 7909 | |
026f2c7a | 7910 | if (*e == ' ') |
7911 | ++e; | |
7912 | } | |
7913 | ||
7914 | if (m) | |
7915 | { | |
7916 | skip = 1; | |
7917 | break; | |
7918 | } | |
7919 | ||
7920 | if (*e != '\0') | |
7921 | ++e; | |
7922 | } | |
7923 | } | |
54518c3b | 7924 | |
7925 | if (! skip) | |
026f2c7a | 7926 | { |
7927 | /* If this is a duplicate, skip it. */ | |
5e8f3c31 | 7928 | skip = (last_path != 0 |
7929 | && (unsigned int) (p - this_path) == last_path_len | |
82715bcd | 7930 | && ! filename_ncmp (last_path, this_path, last_path_len)); |
9577d478 | 7931 | |
026f2c7a | 7932 | last_path = this_path; |
7933 | last_path_len = p - this_path; | |
54518c3b | 7934 | } |
9577d478 | 7935 | |
48583106 | 7936 | /* If this directory requires any default arguments, we can skip |
7937 | it. We will already have printed a directory identical to | |
7938 | this one which does not require that default argument. */ | |
7939 | if (! skip) | |
7940 | { | |
e772a198 | 7941 | const char *q; |
48583106 | 7942 | |
7943 | q = p + 1; | |
7944 | while (*q != ';') | |
7945 | { | |
e772a198 | 7946 | const char *arg; |
48583106 | 7947 | |
7948 | if (*q == '\0') | |
5e8f3c31 | 7949 | goto invalid_select; |
48583106 | 7950 | |
7951 | if (*q == '!') | |
7952 | arg = NULL; | |
7953 | else | |
7954 | arg = q; | |
7955 | ||
7956 | while (*q != ' ' && *q != ';') | |
7957 | { | |
7958 | if (*q == '\0') | |
5e8f3c31 | 7959 | goto invalid_select; |
48583106 | 7960 | ++q; |
7961 | } | |
7962 | ||
7963 | if (arg != NULL | |
7964 | && default_arg (arg, q - arg)) | |
7965 | { | |
7966 | skip = 1; | |
7967 | break; | |
7968 | } | |
7969 | ||
7970 | if (*q == ' ') | |
7971 | ++q; | |
7972 | } | |
7973 | } | |
7974 | ||
9577d478 | 7975 | if (! skip) |
7976 | { | |
e772a198 | 7977 | const char *p1; |
9577d478 | 7978 | |
c954ff02 | 7979 | for (p1 = last_path; p1 < p && *p1 != ':'; p1++) |
9577d478 | 7980 | putchar (*p1); |
7981 | putchar (';'); | |
7982 | } | |
7983 | ||
7984 | ++p; | |
7985 | while (*p != ';') | |
7986 | { | |
7987 | int use_arg; | |
7988 | ||
7989 | if (*p == '\0') | |
5e8f3c31 | 7990 | goto invalid_select; |
9577d478 | 7991 | |
7992 | if (skip) | |
7993 | { | |
7994 | ++p; | |
7995 | continue; | |
7996 | } | |
7997 | ||
7998 | use_arg = *p != '!'; | |
7999 | ||
8000 | if (use_arg) | |
8001 | putchar ('@'); | |
8002 | ||
8003 | while (*p != ' ' && *p != ';') | |
8004 | { | |
8005 | if (*p == '\0') | |
5e8f3c31 | 8006 | goto invalid_select; |
9577d478 | 8007 | if (use_arg) |
8008 | putchar (*p); | |
8009 | ++p; | |
8010 | } | |
8011 | ||
8012 | if (*p == ' ') | |
8013 | ++p; | |
8014 | } | |
8015 | ||
8016 | if (! skip) | |
3d97d965 | 8017 | { |
d4ea3b1f | 8018 | /* If there are extra options, print them now. */ |
3d97d965 | 8019 | if (multilib_extra && *multilib_extra) |
8020 | { | |
8021 | int print_at = TRUE; | |
e772a198 | 8022 | const char *q; |
3d97d965 | 8023 | |
8024 | for (q = multilib_extra; *q != '\0'; q++) | |
8025 | { | |
8026 | if (*q == ' ') | |
8027 | print_at = TRUE; | |
8028 | else | |
8029 | { | |
8030 | if (print_at) | |
8031 | putchar ('@'); | |
8032 | putchar (*q); | |
8033 | print_at = FALSE; | |
8034 | } | |
8035 | } | |
8036 | } | |
2c815aff | 8037 | |
3d97d965 | 8038 | putchar ('\n'); |
8039 | } | |
9577d478 | 8040 | |
8041 | ++p; | |
8042 | } | |
8043 | } | |
c21b3276 | 8044 | \f |
0305c755 | 8045 | /* getenv built-in spec function. |
8046 | ||
8047 | Returns the value of the environment variable given by its first | |
8048 | argument, concatenated with the second argument. If the | |
8049 | environment variable is not defined, a fatal error is issued. */ | |
8050 | ||
8051 | static const char * | |
8052 | getenv_spec_function (int argc, const char **argv) | |
8053 | { | |
8054 | char *value; | |
4b20bbaf | 8055 | char *result; |
8056 | char *ptr; | |
8057 | size_t len; | |
0305c755 | 8058 | |
8059 | if (argc != 2) | |
8060 | return NULL; | |
8061 | ||
8062 | value = getenv (argv[0]); | |
8063 | if (!value) | |
a8c464ac | 8064 | fatal_error ("environment variable %qs not defined", argv[0]); |
0305c755 | 8065 | |
4b20bbaf | 8066 | /* We have to escape every character of the environment variable so |
f0b5f617 | 8067 | they are not interpreted as active spec characters. A |
8068 | particularly painful case is when we are reading a variable | |
4b20bbaf | 8069 | holding a windows path complete with \ separators. */ |
8070 | len = strlen (value) * 2 + strlen (argv[1]) + 1; | |
25a1c410 | 8071 | result = XNEWVAR (char, len); |
4b20bbaf | 8072 | for (ptr = result; *value; ptr += 2) |
8073 | { | |
8074 | ptr[0] = '\\'; | |
8075 | ptr[1] = *value++; | |
8076 | } | |
48e1416a | 8077 | |
4b20bbaf | 8078 | strcpy (ptr, argv[1]); |
48e1416a | 8079 | |
4b20bbaf | 8080 | return result; |
0305c755 | 8081 | } |
8082 | ||
c21b3276 | 8083 | /* if-exists built-in spec function. |
8084 | ||
8085 | Checks to see if the file specified by the absolute pathname in | |
8086 | ARGS exists. Returns that pathname if found. | |
8087 | ||
8088 | The usual use for this function is to check for a library file | |
8089 | (whose name has been expanded with %s). */ | |
8090 | ||
8091 | static const char * | |
952f0048 | 8092 | if_exists_spec_function (int argc, const char **argv) |
c21b3276 | 8093 | { |
8094 | /* Must have only one argument. */ | |
a5c088d4 | 8095 | if (argc == 1 && IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK)) |
c21b3276 | 8096 | return argv[0]; |
8097 | ||
8098 | return NULL; | |
8099 | } | |
68d74c02 | 8100 | |
8101 | /* if-exists-else built-in spec function. | |
8102 | ||
8103 | This is like if-exists, but takes an additional argument which | |
8104 | is returned if the first argument does not exist. */ | |
8105 | ||
8106 | static const char * | |
952f0048 | 8107 | if_exists_else_spec_function (int argc, const char **argv) |
68d74c02 | 8108 | { |
8109 | /* Must have exactly two arguments. */ | |
8110 | if (argc != 2) | |
8111 | return NULL; | |
8112 | ||
a5c088d4 | 8113 | if (IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK)) |
68d74c02 | 8114 | return argv[0]; |
8115 | ||
8116 | return argv[1]; | |
8117 | } | |
2288041e | 8118 | |
9e46467d | 8119 | /* sanitize built-in spec function. |
8120 | ||
8121 | This returns non-NULL, if sanitizing address, thread or | |
8122 | any of the undefined behavior sanitizers. */ | |
8123 | ||
8124 | static const char * | |
8125 | sanitize_spec_function (int argc, const char **argv) | |
8126 | { | |
8127 | if (argc != 1) | |
8128 | return NULL; | |
8129 | ||
8130 | if (strcmp (argv[0], "address") == 0) | |
8131 | return (flag_sanitize & SANITIZE_ADDRESS) ? "" : NULL; | |
8132 | if (strcmp (argv[0], "thread") == 0) | |
8133 | return (flag_sanitize & SANITIZE_THREAD) ? "" : NULL; | |
8134 | if (strcmp (argv[0], "undefined") == 0) | |
8135 | return (flag_sanitize & SANITIZE_UNDEFINED) ? "" : NULL; | |
8136 | ||
8137 | return NULL; | |
8138 | } | |
8139 | ||
2288041e | 8140 | /* replace-outfile built-in spec function. |
9b1f316f | 8141 | |
8142 | This looks for the first argument in the outfiles array's name and | |
8143 | replaces it with the second argument. */ | |
2288041e | 8144 | |
8145 | static const char * | |
8146 | replace_outfile_spec_function (int argc, const char **argv) | |
8147 | { | |
8148 | int i; | |
8149 | /* Must have exactly two arguments. */ | |
8150 | if (argc != 2) | |
8151 | abort (); | |
2f2c6aee | 8152 | |
2288041e | 8153 | for (i = 0; i < n_infiles; i++) |
8154 | { | |
82715bcd | 8155 | if (outfiles[i] && !filename_cmp (outfiles[i], argv[0])) |
2288041e | 8156 | outfiles[i] = xstrdup (argv[1]); |
8157 | } | |
8158 | return NULL; | |
8159 | } | |
8160 | ||
8127ab5d | 8161 | /* remove-outfile built-in spec function. |
8162 | * | |
8163 | * This looks for the first argument in the outfiles array's name and | |
8164 | * removes it. */ | |
8165 | ||
8166 | static const char * | |
8167 | remove_outfile_spec_function (int argc, const char **argv) | |
8168 | { | |
8169 | int i; | |
8170 | /* Must have exactly one argument. */ | |
8171 | if (argc != 1) | |
8172 | abort (); | |
8173 | ||
8174 | for (i = 0; i < n_infiles; i++) | |
8175 | { | |
82715bcd | 8176 | if (outfiles[i] && !filename_cmp (outfiles[i], argv[0])) |
8127ab5d | 8177 | outfiles[i] = NULL; |
8178 | } | |
8179 | return NULL; | |
8180 | } | |
8181 | ||
2f2c6aee | 8182 | /* Given two version numbers, compares the two numbers. |
9b1f316f | 8183 | A version number must match the regular expression |
8184 | ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))* | |
8185 | */ | |
8186 | static int | |
8187 | compare_version_strings (const char *v1, const char *v2) | |
8188 | { | |
8189 | int rresult; | |
8190 | regex_t r; | |
2f2c6aee | 8191 | |
9b1f316f | 8192 | if (regcomp (&r, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$", |
8193 | REG_EXTENDED | REG_NOSUB) != 0) | |
8194 | abort (); | |
8195 | rresult = regexec (&r, v1, 0, NULL, 0); | |
8196 | if (rresult == REG_NOMATCH) | |
a8c464ac | 8197 | fatal_error ("invalid version number %qs", v1); |
9b1f316f | 8198 | else if (rresult != 0) |
8199 | abort (); | |
8200 | rresult = regexec (&r, v2, 0, NULL, 0); | |
8201 | if (rresult == REG_NOMATCH) | |
a8c464ac | 8202 | fatal_error ("invalid version number %qs", v2); |
9b1f316f | 8203 | else if (rresult != 0) |
8204 | abort (); | |
8205 | ||
8206 | return strverscmp (v1, v2); | |
8207 | } | |
8208 | ||
8209 | ||
8210 | /* version_compare built-in spec function. | |
8211 | ||
8212 | This takes an argument of the following form: | |
8213 | ||
8214 | <comparison-op> <arg1> [<arg2>] <switch> <result> | |
8215 | ||
8216 | and produces "result" if the comparison evaluates to true, | |
8217 | and nothing if it doesn't. | |
8218 | ||
8219 | The supported <comparison-op> values are: | |
2f2c6aee | 8220 | |
9b1f316f | 8221 | >= true if switch is a later (or same) version than arg1 |
8222 | !> opposite of >= | |
8223 | < true if switch is an earlier version than arg1 | |
8224 | !< opposite of < | |
8225 | >< true if switch is arg1 or later, and earlier than arg2 | |
8226 | <> true if switch is earlier than arg1 or is arg2 or later | |
8227 | ||
8228 | If the switch is not present, the condition is false unless | |
8229 | the first character of the <comparison-op> is '!'. | |
8230 | ||
8231 | For example, | |
8232 | %:version-compare(>= 10.3 mmacosx-version-min= -lmx) | |
8233 | adds -lmx if -mmacosx-version-min=10.3.9 was passed. */ | |
8234 | ||
8235 | static const char * | |
8236 | version_compare_spec_function (int argc, const char **argv) | |
8237 | { | |
8238 | int comp1, comp2; | |
8239 | size_t switch_len; | |
8240 | const char *switch_value = NULL; | |
8241 | int nargs = 1, i; | |
8242 | bool result; | |
8243 | ||
8244 | if (argc < 3) | |
a922df2e | 8245 | fatal_error ("too few arguments to %%:version-compare"); |
9b1f316f | 8246 | if (argv[0][0] == '\0') |
8247 | abort (); | |
8248 | if ((argv[0][1] == '<' || argv[0][1] == '>') && argv[0][0] != '!') | |
8249 | nargs = 2; | |
8250 | if (argc != nargs + 3) | |
a922df2e | 8251 | fatal_error ("too many arguments to %%:version-compare"); |
9b1f316f | 8252 | |
8253 | switch_len = strlen (argv[nargs + 1]); | |
8254 | for (i = 0; i < n_switches; i++) | |
8255 | if (!strncmp (switches[i].part1, argv[nargs + 1], switch_len) | |
8256 | && check_live_switch (i, switch_len)) | |
8257 | switch_value = switches[i].part1 + switch_len; | |
8258 | ||
8259 | if (switch_value == NULL) | |
8260 | comp1 = comp2 = -1; | |
8261 | else | |
8262 | { | |
8263 | comp1 = compare_version_strings (switch_value, argv[1]); | |
8264 | if (nargs == 2) | |
8265 | comp2 = compare_version_strings (switch_value, argv[2]); | |
8266 | else | |
8267 | comp2 = -1; /* This value unused. */ | |
8268 | } | |
8269 | ||
8270 | switch (argv[0][0] << 8 | argv[0][1]) | |
8271 | { | |
8272 | case '>' << 8 | '=': | |
8273 | result = comp1 >= 0; | |
8274 | break; | |
8275 | case '!' << 8 | '<': | |
8276 | result = comp1 >= 0 || switch_value == NULL; | |
8277 | break; | |
8278 | case '<' << 8: | |
8279 | result = comp1 < 0; | |
8280 | break; | |
8281 | case '!' << 8 | '>': | |
8282 | result = comp1 < 0 || switch_value == NULL; | |
8283 | break; | |
8284 | case '>' << 8 | '<': | |
8285 | result = comp1 >= 0 && comp2 < 0; | |
8286 | break; | |
8287 | case '<' << 8 | '>': | |
8288 | result = comp1 < 0 || comp2 >= 0; | |
8289 | break; | |
2f2c6aee | 8290 | |
9b1f316f | 8291 | default: |
a8c464ac | 8292 | fatal_error ("unknown operator %qs in %%:version-compare", argv[0]); |
9b1f316f | 8293 | } |
8294 | if (! result) | |
8295 | return NULL; | |
8296 | ||
8297 | return argv[nargs + 2]; | |
8298 | } | |
1e8e9920 | 8299 | |
8300 | /* %:include builtin spec function. This differs from %include in that it | |
8301 | can be nested inside a spec, and thus be conditionalized. It takes | |
8302 | one argument, the filename, and looks for it in the startfile path. | |
8303 | The result is always NULL, i.e. an empty expansion. */ | |
8304 | ||
8305 | static const char * | |
8306 | include_spec_function (int argc, const char **argv) | |
8307 | { | |
8308 | char *file; | |
8309 | ||
8310 | if (argc != 1) | |
8311 | abort (); | |
8312 | ||
f9ebe19f | 8313 | file = find_a_file (&startfile_prefixes, argv[0], R_OK, true); |
556cfe53 | 8314 | read_specs (file ? file : argv[0], false, false); |
1e8e9920 | 8315 | |
8316 | return NULL; | |
8317 | } | |
ceac8e8c | 8318 | |
d6bff3e6 | 8319 | /* %:find-file spec function. This function replaces its argument by |
9d75589a | 8320 | the file found through find_file, that is the -print-file-name gcc |
19bc000d | 8321 | program option. */ |
8322 | static const char * | |
d6bff3e6 | 8323 | find_file_spec_function (int argc, const char **argv) |
19bc000d | 8324 | { |
8325 | const char *file; | |
8326 | ||
8327 | if (argc != 1) | |
8328 | abort (); | |
8329 | ||
8330 | file = find_file (argv[0]); | |
8331 | return file; | |
8332 | } | |
8333 | ||
8334 | ||
d6bff3e6 | 8335 | /* %:find-plugindir spec function. This function replaces its argument |
9d75589a | 8336 | by the -iplugindir=<dir> option. `dir' is found through find_file, that |
d6bff3e6 | 8337 | is the -print-file-name gcc program option. */ |
8338 | static const char * | |
8339 | find_plugindir_spec_function (int argc, const char **argv ATTRIBUTE_UNUSED) | |
8340 | { | |
8341 | const char *option; | |
8342 | ||
8343 | if (argc != 0) | |
8344 | abort (); | |
8345 | ||
8346 | option = concat ("-iplugindir=", find_file ("plugin"), NULL); | |
8347 | return option; | |
8348 | } | |
8349 | ||
8350 | ||
ceac8e8c | 8351 | /* %:print-asm-header spec function. Print a banner to say that the |
8352 | following output is from the assembler. */ | |
8353 | ||
8354 | static const char * | |
8355 | print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED, | |
8356 | const char **argv ATTRIBUTE_UNUSED) | |
8357 | { | |
666137bc | 8358 | printf (_("Assembler options\n=================\n\n")); |
ceac8e8c | 8359 | printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n")); |
8360 | fflush (stdout); | |
8361 | return NULL; | |
8362 | } | |
71278019 | 8363 | |
0f41df2b | 8364 | /* Get a random number for -frandom-seed */ |
9845d120 | 8365 | |
0f41df2b | 8366 | static unsigned HOST_WIDE_INT |
8367 | get_random_number (void) | |
9845d120 | 8368 | { |
0f41df2b | 8369 | unsigned HOST_WIDE_INT ret = 0; |
8370 | int fd; | |
8371 | ||
8372 | fd = open ("/dev/urandom", O_RDONLY); | |
8373 | if (fd >= 0) | |
8374 | { | |
8375 | read (fd, &ret, sizeof (HOST_WIDE_INT)); | |
8376 | close (fd); | |
8377 | if (ret) | |
8378 | return ret; | |
8379 | } | |
9845d120 | 8380 | |
8381 | /* Get some more or less random data. */ | |
8382 | #ifdef HAVE_GETTIMEOFDAY | |
8383 | { | |
8384 | struct timeval tv; | |
8385 | ||
8386 | gettimeofday (&tv, NULL); | |
8387 | ret = tv.tv_sec * 1000 + tv.tv_usec / 1000; | |
8388 | } | |
8389 | #else | |
8390 | { | |
8391 | time_t now = time (NULL); | |
8392 | ||
8393 | if (now != (time_t)-1) | |
8394 | ret = (unsigned) now; | |
8395 | } | |
8396 | #endif | |
8397 | ||
0f41df2b | 8398 | return ret ^ getpid(); |
9845d120 | 8399 | } |
8400 | ||
71278019 | 8401 | /* %:compare-debug-dump-opt spec function. Save the last argument, |
8402 | expected to be the last -fdump-final-insns option, or generate a | |
8403 | temporary. */ | |
8404 | ||
8405 | static const char * | |
8406 | compare_debug_dump_opt_spec_function (int arg, | |
8407 | const char **argv ATTRIBUTE_UNUSED) | |
8408 | { | |
ce0fdb91 | 8409 | char *ret; |
71278019 | 8410 | char *name; |
8411 | int which; | |
9845d120 | 8412 | static char random_seed[HOST_BITS_PER_WIDE_INT / 4 + 3]; |
71278019 | 8413 | |
8414 | if (arg != 0) | |
a922df2e | 8415 | fatal_error ("too many arguments to %%:compare-debug-dump-opt"); |
71278019 | 8416 | |
71278019 | 8417 | do_spec_2 ("%{fdump-final-insns=*:%*}"); |
8418 | do_spec_1 (" ", 0, NULL); | |
8419 | ||
f1f41a6c | 8420 | if (argbuf.length () > 0 |
8421 | && strcmp (argv[argbuf.length () - 1], ".")) | |
71278019 | 8422 | { |
9845d120 | 8423 | if (!compare_debug) |
8424 | return NULL; | |
8425 | ||
f1f41a6c | 8426 | name = xstrdup (argv[argbuf.length () - 1]); |
71278019 | 8427 | ret = NULL; |
8428 | } | |
8429 | else | |
8430 | { | |
9845d120 | 8431 | const char *ext = NULL; |
8432 | ||
f1f41a6c | 8433 | if (argbuf.length () > 0) |
9845d120 | 8434 | { |
8435 | do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}"); | |
8436 | ext = ".gkd"; | |
8437 | } | |
8438 | else if (!compare_debug) | |
8439 | return NULL; | |
8440 | else | |
8441 | do_spec_2 ("%g.gkd"); | |
71278019 | 8442 | |
71278019 | 8443 | do_spec_1 (" ", 0, NULL); |
71278019 | 8444 | |
f1f41a6c | 8445 | gcc_assert (argbuf.length () > 0); |
71278019 | 8446 | |
f1f41a6c | 8447 | name = concat (argbuf.last (), ext, NULL); |
9845d120 | 8448 | |
8449 | ret = concat ("-fdump-final-insns=", name, NULL); | |
71278019 | 8450 | } |
8451 | ||
8452 | which = compare_debug < 0; | |
8453 | debug_check_temp_file[which] = name; | |
8454 | ||
9845d120 | 8455 | if (!which) |
8456 | { | |
0f41df2b | 8457 | unsigned HOST_WIDE_INT value = get_random_number (); |
9845d120 | 8458 | |
8459 | sprintf (random_seed, HOST_WIDE_INT_PRINT_HEX, value); | |
8460 | } | |
8461 | ||
8462 | if (*random_seed) | |
ce0fdb91 | 8463 | { |
8464 | char *tmp = ret; | |
8465 | ret = concat ("%{!frandom-seed=*:-frandom-seed=", random_seed, "} ", | |
8466 | ret, NULL); | |
8467 | free (tmp); | |
8468 | } | |
9845d120 | 8469 | |
8470 | if (which) | |
8471 | *random_seed = 0; | |
71278019 | 8472 | |
8473 | return ret; | |
8474 | } | |
8475 | ||
8476 | static const char *debug_auxbase_opt; | |
8477 | ||
8478 | /* %:compare-debug-self-opt spec function. Expands to the options | |
8479 | that are to be passed in the second compilation of | |
8480 | compare-debug. */ | |
8481 | ||
8482 | static const char * | |
8483 | compare_debug_self_opt_spec_function (int arg, | |
8484 | const char **argv ATTRIBUTE_UNUSED) | |
8485 | { | |
8486 | if (arg != 0) | |
a922df2e | 8487 | fatal_error ("too many arguments to %%:compare-debug-self-opt"); |
71278019 | 8488 | |
8489 | if (compare_debug >= 0) | |
8490 | return NULL; | |
8491 | ||
8492 | do_spec_2 ("%{c|S:%{o*:%*}}"); | |
8493 | do_spec_1 (" ", 0, NULL); | |
8494 | ||
f1f41a6c | 8495 | if (argbuf.length () > 0) |
71278019 | 8496 | debug_auxbase_opt = concat ("-auxbase-strip ", |
f1f41a6c | 8497 | argbuf.last (), |
71278019 | 8498 | NULL); |
8499 | else | |
8500 | debug_auxbase_opt = NULL; | |
8501 | ||
8502 | return concat ("\ | |
8503 | %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \ | |
8504 | %<fdump-final-insns=* -w -S -o %j \ | |
8505 | %{!fcompare-debug-second:-fcompare-debug-second} \ | |
8506 | ", compare_debug_opt, NULL); | |
8507 | } | |
8508 | ||
8509 | /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase | |
8510 | options that are to be passed in the second compilation of | |
8511 | compare-debug. It expects, as an argument, the basename of the | |
8512 | current input file name, with the .gk suffix appended to it. */ | |
8513 | ||
8514 | static const char * | |
8515 | compare_debug_auxbase_opt_spec_function (int arg, | |
8516 | const char **argv) | |
8517 | { | |
8518 | char *name; | |
8519 | int len; | |
8520 | ||
8521 | if (arg == 0) | |
a922df2e | 8522 | fatal_error ("too few arguments to %%:compare-debug-auxbase-opt"); |
71278019 | 8523 | |
8524 | if (arg != 1) | |
a922df2e | 8525 | fatal_error ("too many arguments to %%:compare-debug-auxbase-opt"); |
71278019 | 8526 | |
8527 | if (compare_debug >= 0) | |
8528 | return NULL; | |
8529 | ||
8530 | len = strlen (argv[0]); | |
8531 | if (len < 3 || strcmp (argv[0] + len - 3, ".gk") != 0) | |
a922df2e | 8532 | fatal_error ("argument to %%:compare-debug-auxbase-opt " |
8533 | "does not end in .gk"); | |
71278019 | 8534 | |
8535 | if (debug_auxbase_opt) | |
8536 | return debug_auxbase_opt; | |
8537 | ||
8538 | #define OPT "-auxbase " | |
8539 | ||
8540 | len -= 3; | |
8541 | name = (char*) xmalloc (sizeof (OPT) + len); | |
8542 | memcpy (name, OPT, sizeof (OPT) - 1); | |
8543 | memcpy (name + sizeof (OPT) - 1, argv[0], len); | |
8544 | name[sizeof (OPT) - 1 + len] = '\0'; | |
8545 | ||
9845d120 | 8546 | #undef OPT |
8547 | ||
71278019 | 8548 | return name; |
8549 | } | |
280f8649 | 8550 | |
8551 | /* %:pass-through-libs spec function. Finds all -l options and input | |
8552 | file names in the lib spec passed to it, and makes a list of them | |
8553 | prepended with the plugin option to cause them to be passed through | |
8554 | to the final link after all the new object files have been added. */ | |
8555 | ||
8556 | const char * | |
8557 | pass_through_libs_spec_func (int argc, const char **argv) | |
8558 | { | |
8559 | char *prepended = xstrdup (" "); | |
8560 | int n; | |
8561 | /* Shlemiel the painter's algorithm. Innately horrible, but at least | |
8562 | we know that there will never be more than a handful of strings to | |
8563 | concat, and it's only once per run, so it's not worth optimising. */ | |
8564 | for (n = 0; n < argc; n++) | |
8565 | { | |
8566 | char *old = prepended; | |
8567 | /* Anything that isn't an option is a full path to an output | |
8568 | file; pass it through if it ends in '.a'. Among options, | |
8569 | pass only -l. */ | |
8570 | if (argv[n][0] == '-' && argv[n][1] == 'l') | |
8571 | { | |
8572 | const char *lopt = argv[n] + 2; | |
8573 | /* Handle both joined and non-joined -l options. If for any | |
8574 | reason there's a trailing -l with no joined or following | |
8575 | arg just discard it. */ | |
8576 | if (!*lopt && ++n >= argc) | |
8577 | break; | |
8578 | else if (!*lopt) | |
8579 | lopt = argv[n]; | |
8580 | prepended = concat (prepended, "-plugin-opt=-pass-through=-l", | |
8581 | lopt, " ", NULL); | |
8582 | } | |
8583 | else if (!strcmp (".a", argv[n] + strlen (argv[n]) - 2)) | |
8584 | { | |
8585 | prepended = concat (prepended, "-plugin-opt=-pass-through=", | |
8586 | argv[n], " ", NULL); | |
8587 | } | |
8588 | if (prepended != old) | |
8589 | free (old); | |
8590 | } | |
8591 | return prepended; | |
8592 | } | |
b35329c7 | 8593 | |
8594 | /* %:replace-extension spec function. Replaces the extension of the | |
8595 | first argument with the second argument. */ | |
8596 | ||
8597 | const char * | |
8598 | replace_extension_spec_func (int argc, const char **argv) | |
8599 | { | |
8600 | char *name; | |
8601 | char *p; | |
8602 | char *result; | |
8603 | int i; | |
8604 | ||
8605 | if (argc != 2) | |
8606 | fatal_error ("too few arguments to %%:replace-extension"); | |
8607 | ||
8608 | name = xstrdup (argv[0]); | |
8609 | ||
8610 | for (i = strlen(name) - 1; i >= 0; i--) | |
8611 | if (IS_DIR_SEPARATOR (name[i])) | |
8612 | break; | |
8613 | ||
8614 | p = strrchr (name + i + 1, '.'); | |
8615 | if (p != NULL) | |
8616 | *p = '\0'; | |
8617 | ||
8618 | result = concat (name, argv[1], NULL); | |
8619 | ||
8620 | free (name); | |
8621 | return result; | |
8622 | } | |
40c059b1 | 8623 | |
8624 | /* Insert backslash before spaces in ORIG (usually a file path), to | |
8625 | avoid being broken by spec parser. | |
8626 | ||
8627 | This function is needed as do_spec_1 treats white space (' ' and '\t') | |
8628 | as the end of an argument. But in case of -plugin /usr/gcc install/xxx.so, | |
8629 | the file name should be treated as a single argument rather than being | |
8630 | broken into multiple. Solution is to insert '\\' before the space in a | |
8631 | file name. | |
8632 | ||
8633 | This function converts and only converts all occurrence of ' ' | |
8634 | to '\\' + ' ' and '\t' to '\\' + '\t'. For example: | |
8635 | "a b" -> "a\\ b" | |
8636 | "a b" -> "a\\ \\ b" | |
8637 | "a\tb" -> "a\\\tb" | |
8638 | "a\\ b" -> "a\\\\ b" | |
8639 | ||
8640 | orig: input null-terminating string that was allocated by xalloc. The | |
8641 | memory it points to might be freed in this function. Behavior undefined | |
8642 | if ORIG wasn't xalloced or was freed already at entry. | |
8643 | ||
8644 | Return: ORIG if no conversion needed. Otherwise a newly allocated string | |
8645 | that was converted from ORIG. */ | |
8646 | ||
8647 | static char * | |
8648 | convert_white_space (char *orig) | |
8649 | { | |
8650 | int len, number_of_space = 0; | |
8651 | ||
8652 | for (len = 0; orig[len]; len++) | |
8653 | if (orig[len] == ' ' || orig[len] == '\t') number_of_space++; | |
8654 | ||
8655 | if (number_of_space) | |
8656 | { | |
8657 | char *new_spec = (char *) xmalloc (len + number_of_space + 1); | |
8658 | int j, k; | |
8659 | for (j = 0, k = 0; j <= len; j++, k++) | |
8660 | { | |
8661 | if (orig[j] == ' ' || orig[j] == '\t') | |
8662 | new_spec[k++] = '\\'; | |
8663 | new_spec[k] = orig[j]; | |
8664 | } | |
8665 | free (orig); | |
8666 | return new_spec; | |
8667 | } | |
8668 | else | |
8669 | return orig; | |
8670 | } |