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ed1f651b | 1 | /* Compiler driver program that can handle many languages. |
9218435e | 2 | Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, |
44ee6e9e | 3 | 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. |
ed1f651b | 4 | |
1322177d | 5 | This file is part of GCC. |
ed1f651b | 6 | |
1322177d LB |
7 | GCC is free software; you can redistribute it and/or modify it under |
8 | the terms of the GNU General Public License as published by the Free | |
9 | Software Foundation; either version 2, or (at your option) any later | |
10 | version. | |
ed1f651b | 11 | |
1322177d LB |
12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for more details. | |
ed1f651b RS |
16 | |
17 | You should have received a copy of the GNU General Public License | |
1322177d LB |
18 | along with GCC; see the file COPYING. If not, write to the Free |
19 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
20 | 02111-1307, USA. | |
ed1f651b RS |
21 | |
22 | This paragraph is here to try to keep Sun CC from dying. | |
23 | The number of chars here seems crucial!!!! */ | |
24 | ||
25 | /* This program is the user interface to the C compiler and possibly to | |
26 | other compilers. It is used because compilation is a complicated procedure | |
27 | which involves running several programs and passing temporary files between | |
28 | them, forwarding the users switches to those programs selectively, | |
29 | and deleting the temporary files at the end. | |
30 | ||
31 | CC recognizes how to compile each input file by suffixes in the file names. | |
32 | Once it knows which kind of compilation to perform, the procedure for | |
33 | compilation is specified by a string called a "spec". */ | |
c5c76735 | 34 | |
d991c721 BK |
35 | /* A Short Introduction to Adding a Command-Line Option. |
36 | ||
37 | Before adding a command-line option, consider if it is really | |
38 | necessary. Each additional command-line option adds complexity and | |
39 | is difficult to remove in subsequent versions. | |
40 | ||
41 | In the following, consider adding the command-line argument | |
42 | `--bar'. | |
43 | ||
44 | 1. Each command-line option is specified in the specs file. The | |
45 | notation is described below in the comment entitled "The Specs | |
46 | Language". Read it. | |
47 | ||
48 | 2. In this file, add an entry to "option_map" equating the long | |
49 | `--' argument version and any shorter, single letter version. Read | |
50 | the comments in the declaration of "struct option_map" for an | |
51 | explanation. Do not omit the first `-'. | |
52 | ||
53 | 3. Look in the "specs" file to determine which program or option | |
54 | list should be given the argument, e.g., "cc1_options". Add the | |
55 | appropriate syntax for the shorter option version to the | |
56 | corresponding "const char *" entry in this file. Omit the first | |
57 | `-' from the option. For example, use `-bar', rather than `--bar'. | |
58 | ||
59 | 4. If the argument takes an argument, e.g., `--baz argument1', | |
60 | modify either DEFAULT_SWITCH_TAKES_ARG or | |
61 | DEFAULT_WORD_SWITCH_TAKES_ARG in this file. Omit the first `-' | |
62 | from `--baz'. | |
63 | ||
64 | 5. Document the option in this file's display_help(). If the | |
65 | option is passed to a subprogram, modify its corresponding | |
66 | function, e.g., cppinit.c:print_help() or toplev.c:display_help(), | |
67 | instead. | |
68 | ||
69 | 6. Compile and test. Make sure that your new specs file is being | |
70 | read. For example, use a debugger to investigate the value of | |
71 | "specs_file" in main(). */ | |
72 | ||
e9a25f70 | 73 | #include "config.h" |
670ee920 | 74 | #include "system.h" |
4977bab6 ZW |
75 | #include "coretypes.h" |
76 | #include "tm.h" | |
670ee920 | 77 | #include <signal.h> |
798bdf70 BK |
78 | #if ! defined( SIGCHLD ) && defined( SIGCLD ) |
79 | # define SIGCHLD SIGCLD | |
80 | #endif | |
17248a6b | 81 | #include "obstack.h" |
ab87f8c8 | 82 | #include "intl.h" |
460ee112 | 83 | #include "prefix.h" |
9257393c | 84 | #include "gcc.h" |
8a63621f | 85 | #include "flags.h" |
c10d53dd | 86 | |
03c41c05 ZW |
87 | #ifdef HAVE_SYS_RESOURCE_H |
88 | #include <sys/resource.h> | |
89 | #endif | |
f31e826b | 90 | #if defined (HAVE_DECL_GETRUSAGE) && !HAVE_DECL_GETRUSAGE |
1d088dee | 91 | extern int getrusage (int, struct rusage *); |
03c41c05 ZW |
92 | #endif |
93 | ||
45936a85 DD |
94 | /* By default there is no special suffix for target executables. */ |
95 | /* FIXME: when autoconf is fixed, remove the host check - dj */ | |
96 | #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX) | |
97 | #define HAVE_TARGET_EXECUTABLE_SUFFIX | |
ed1f651b | 98 | #endif |
f6ec7e54 | 99 | |
45936a85 DD |
100 | /* By default there is no special suffix for host executables. */ |
101 | #ifdef HOST_EXECUTABLE_SUFFIX | |
102 | #define HAVE_HOST_EXECUTABLE_SUFFIX | |
f70165f6 | 103 | #else |
45936a85 DD |
104 | #define HOST_EXECUTABLE_SUFFIX "" |
105 | #endif | |
106 | ||
107 | /* By default, the suffix for target object files is ".o". */ | |
108 | #ifdef TARGET_OBJECT_SUFFIX | |
109 | #define HAVE_TARGET_OBJECT_SUFFIX | |
110 | #else | |
111 | #define TARGET_OBJECT_SUFFIX ".o" | |
ed7dae04 RK |
112 | #endif |
113 | ||
8b60264b | 114 | static const char dir_separator_str[] = { DIR_SEPARATOR, 0 }; |
48ff801b | 115 | |
512b62fb JM |
116 | /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */ |
117 | #ifndef LIBRARY_PATH_ENV | |
118 | #define LIBRARY_PATH_ENV "LIBRARY_PATH" | |
119 | #endif | |
120 | ||
956d6950 JL |
121 | #ifndef HAVE_KILL |
122 | #define kill(p,s) raise(s) | |
123 | #endif | |
124 | ||
ed1f651b RS |
125 | /* If a stage of compilation returns an exit status >= 1, |
126 | compilation of that file ceases. */ | |
127 | ||
128 | #define MIN_FATAL_STATUS 1 | |
129 | ||
69927b59 NB |
130 | /* Flag set by cppspec.c to 1. */ |
131 | int is_cpp_driver; | |
132 | ||
14a774a9 RK |
133 | /* Flag saying to pass the greatest exit code returned by a sub-process |
134 | to the calling program. */ | |
135 | static int pass_exit_codes; | |
136 | ||
f5fa9a5b PE |
137 | /* Definition of string containing the arguments given to configure. */ |
138 | #include "configargs.h" | |
139 | ||
2628b9d3 DE |
140 | /* Flag saying to print the directories gcc will search through looking for |
141 | programs, libraries, etc. */ | |
142 | ||
143 | static int print_search_dirs; | |
144 | ||
6a9e290e | 145 | /* Flag saying to print the full filename of this file |
2dcb563f RS |
146 | as found through our usual search mechanism. */ |
147 | ||
878f32c3 | 148 | static const char *print_file_name = NULL; |
6a9e290e | 149 | |
0f41302f | 150 | /* As print_file_name, but search for executable file. */ |
6a9e290e | 151 | |
878f32c3 | 152 | static const char *print_prog_name = NULL; |
2dcb563f | 153 | |
60103a34 DE |
154 | /* Flag saying to print the relative path we'd use to |
155 | find libgcc.a given the current compiler flags. */ | |
156 | ||
157 | static int print_multi_directory; | |
158 | ||
5bbcd587 JJ |
159 | /* Flag saying to print the relative path we'd use to |
160 | find OS libraries given the current compiler flags. */ | |
161 | ||
162 | static int print_multi_os_directory; | |
163 | ||
60103a34 DE |
164 | /* Flag saying to print the list of subdirectories and |
165 | compiler flags used to select them in a standard form. */ | |
166 | ||
167 | static int print_multi_lib; | |
168 | ||
b8468bc7 NC |
169 | /* Flag saying to print the command line options understood by gcc and its |
170 | sub-processes. */ | |
171 | ||
172 | static int print_help_list; | |
173 | ||
ed1f651b RS |
174 | /* Flag indicating whether we should print the command and arguments */ |
175 | ||
176 | static int verbose_flag; | |
177 | ||
99f78cdd IR |
178 | /* Flag indicating whether we should ONLY print the command and |
179 | arguments (like verbose_flag) without executing the command. | |
180 | Displayed arguments are quoted so that the generated command | |
181 | line is suitable for execution. This is intended for use in | |
182 | shell scripts to capture the driver-generated command line. */ | |
183 | static int verbose_only_flag; | |
184 | ||
dc297297 | 185 | /* Flag indicating to print target specific command line options. */ |
91606ce2 CC |
186 | |
187 | static int target_help_flag; | |
188 | ||
03c41c05 ZW |
189 | /* Flag indicating whether we should report subprocess execution times |
190 | (if this is supported by the system - see pexecute.c). */ | |
191 | ||
192 | static int report_times; | |
193 | ||
4977bab6 ZW |
194 | /* Nonzero means place this string before uses of /, so that include |
195 | and library files can be found in an alternate location. */ | |
196 | ||
db720d9a | 197 | #ifdef TARGET_SYSTEM_ROOT |
4977bab6 | 198 | static const char *target_system_root = TARGET_SYSTEM_ROOT; |
db720d9a DJ |
199 | #else |
200 | static const char *target_system_root = 0; | |
201 | #endif | |
4977bab6 | 202 | |
047d636f DJ |
203 | /* Nonzero means pass the updated target_system_root to the compiler. */ |
204 | ||
205 | static int target_system_root_changed; | |
206 | ||
e7f13528 GP |
207 | /* Nonzero means append this string to target_system_root. */ |
208 | ||
209 | static const char *target_sysroot_suffix = 0; | |
210 | ||
211 | /* Nonzero means append this string to target_system_root for headers. */ | |
212 | ||
213 | static const char *target_sysroot_hdrs_suffix = 0; | |
214 | ||
ed1f651b RS |
215 | /* Nonzero means write "temp" files in source directory |
216 | and use the source file's name in them, and don't delete them. */ | |
217 | ||
218 | static int save_temps_flag; | |
219 | ||
4977bab6 ZW |
220 | /* Nonzero means use pipes to communicate between subprocesses. |
221 | Overridden by either of the above two flags. */ | |
222 | ||
223 | static int use_pipes; | |
224 | ||
53117a2f | 225 | /* The compiler version. */ |
ed1f651b | 226 | |
3b304f5b | 227 | static const char *compiler_version; |
53117a2f RK |
228 | |
229 | /* The target version specified with -V */ | |
230 | ||
37a4aa31 | 231 | static const char *const spec_version = DEFAULT_TARGET_VERSION; |
ed1f651b RS |
232 | |
233 | /* The target machine specified with -b. */ | |
234 | ||
878f32c3 | 235 | static const char *spec_machine = DEFAULT_TARGET_MACHINE; |
ed1f651b | 236 | |
004fd4d5 RS |
237 | /* Nonzero if cross-compiling. |
238 | When -b is used, the value comes from the `specs' file. */ | |
239 | ||
240 | #ifdef CROSS_COMPILE | |
3b304f5b | 241 | static const char *cross_compile = "1"; |
004fd4d5 | 242 | #else |
3b304f5b | 243 | static const char *cross_compile = "0"; |
004fd4d5 RS |
244 | #endif |
245 | ||
dc36ec2c RK |
246 | #ifdef MODIFY_TARGET_NAME |
247 | ||
248 | /* Information on how to alter the target name based on a command-line | |
249 | switch. The only case we support now is simply appending or deleting a | |
250 | string to or from the end of the first part of the configuration name. */ | |
251 | ||
0b5826ac | 252 | static const struct modify_target |
dc36ec2c | 253 | { |
8b60264b KG |
254 | const char *const sw; |
255 | const enum add_del {ADD, DELETE} add_del; | |
256 | const char *const str; | |
dc36ec2c RK |
257 | } |
258 | modify_target[] = MODIFY_TARGET_NAME; | |
259 | #endif | |
589005ff | 260 | |
48fb792a | 261 | /* The number of errors that have occurred; the link phase will not be |
cc2902df | 262 | run if this is nonzero. */ |
48fb792a BK |
263 | static int error_count = 0; |
264 | ||
14a774a9 RK |
265 | /* Greatest exit code of sub-processes that has been encountered up to |
266 | now. */ | |
267 | static int greatest_status = 1; | |
268 | ||
ed1f651b RS |
269 | /* This is the obstack which we use to allocate many strings. */ |
270 | ||
271 | static struct obstack obstack; | |
272 | ||
b3865ca9 | 273 | /* This is the obstack to build an environment variable to pass to |
6dc42e49 | 274 | collect2 that describes all of the relevant switches of what to |
b3865ca9 RS |
275 | pass the compiler in building the list of pointers to constructors |
276 | and destructors. */ | |
277 | ||
278 | static struct obstack collect_obstack; | |
279 | ||
03c41c05 ZW |
280 | /* These structs are used to collect resource usage information for |
281 | subprocesses. */ | |
282 | #ifdef HAVE_GETRUSAGE | |
283 | static struct rusage rus, prus; | |
284 | #endif | |
285 | ||
99360286 DE |
286 | /* Forward declaration for prototypes. */ |
287 | struct path_prefix; | |
288 | ||
1d088dee AJ |
289 | static void init_spec (void); |
290 | static void store_arg (const char *, int, int); | |
291 | static char *load_specs (const char *); | |
292 | static void read_specs (const char *, int); | |
293 | static void set_spec (const char *, const char *); | |
294 | static struct compiler *lookup_compiler (const char *, size_t, const char *); | |
295 | static char *build_search_list (struct path_prefix *, const char *, int); | |
296 | static void putenv_from_prefixes (struct path_prefix *, const char *); | |
297 | static int access_check (const char *, int); | |
298 | static char *find_a_file (struct path_prefix *, const char *, int, int); | |
299 | static void add_prefix (struct path_prefix *, const char *, const char *, | |
300 | int, int, int *, int); | |
301 | static void add_sysrooted_prefix (struct path_prefix *, const char *, | |
302 | const char *, int, int, int *, int); | |
303 | static void translate_options (int *, const char *const **); | |
304 | static char *skip_whitespace (char *); | |
305 | static void delete_if_ordinary (const char *); | |
306 | static void delete_temp_files (void); | |
307 | static void delete_failure_queue (void); | |
308 | static void clear_failure_queue (void); | |
309 | static int check_live_switch (int, int); | |
310 | static const char *handle_braces (const char *); | |
311 | static inline bool input_suffix_matches (const char *, const char *); | |
312 | static inline bool switch_matches (const char *, const char *, int); | |
313 | static inline void mark_matching_switches (const char *, const char *, int); | |
314 | static inline void process_marked_switches (void); | |
315 | static const char *process_brace_body (const char *, const char *, const char *, int, int); | |
316 | static const struct spec_function *lookup_spec_function (const char *); | |
317 | static const char *eval_spec_function (const char *, const char *); | |
318 | static const char *handle_spec_function (const char *); | |
319 | static char *save_string (const char *, int); | |
320 | static void set_collect_gcc_options (void); | |
321 | static int do_spec_1 (const char *, int, const char *); | |
322 | static int do_spec_2 (const char *); | |
323 | static void do_option_spec (const char *, const char *); | |
324 | static void do_self_spec (const char *); | |
325 | static const char *find_file (const char *); | |
326 | static int is_directory (const char *, const char *, int); | |
327 | static const char *validate_switches (const char *); | |
328 | static void validate_all_switches (void); | |
329 | static inline void validate_switches_from_spec (const char *); | |
330 | static void give_switch (int, int); | |
331 | static int used_arg (const char *, int); | |
332 | static int default_arg (const char *, int); | |
333 | static void set_multilib_dir (void); | |
334 | static void print_multilib_info (void); | |
335 | static void perror_with_name (const char *); | |
336 | static void pfatal_pexecute (const char *, const char *) ATTRIBUTE_NORETURN; | |
337 | static void notice (const char *, ...) ATTRIBUTE_PRINTF_1; | |
338 | static void display_help (void); | |
339 | static void add_preprocessor_option (const char *, int); | |
340 | static void add_assembler_option (const char *, int); | |
341 | static void add_linker_option (const char *, int); | |
342 | static void process_command (int, const char *const *); | |
343 | static int execute (void); | |
344 | static void alloc_args (void); | |
345 | static void clear_args (void); | |
346 | static void fatal_error (int); | |
6894579f | 347 | #ifdef ENABLE_SHARED_LIBGCC |
1d088dee AJ |
348 | static void init_gcc_specs (struct obstack *, const char *, const char *, |
349 | const char *); | |
6894579f | 350 | #endif |
40cdfca6 | 351 | #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX) |
1d088dee | 352 | static const char *convert_filename (const char *, int, int); |
40cdfca6 | 353 | #endif |
f3226a90 | 354 | |
1d088dee AJ |
355 | static const char *if_exists_spec_function (int, const char **); |
356 | static const char *if_exists_else_spec_function (int, const char **); | |
ed1f651b | 357 | \f |
d991c721 BK |
358 | /* The Specs Language |
359 | ||
360 | Specs are strings containing lines, each of which (if not blank) | |
ed1f651b RS |
361 | is made up of a program name, and arguments separated by spaces. |
362 | The program name must be exact and start from root, since no path | |
363 | is searched and it is unreliable to depend on the current working directory. | |
364 | Redirection of input or output is not supported; the subprograms must | |
365 | accept filenames saying what files to read and write. | |
366 | ||
367 | In addition, the specs can contain %-sequences to substitute variable text | |
368 | or for conditional text. Here is a table of all defined %-sequences. | |
369 | Note that spaces are not generated automatically around the results of | |
370 | expanding these sequences; therefore, you can concatenate them together | |
371 | or with constant text in a single argument. | |
372 | ||
373 | %% substitute one % into the program name or argument. | |
374 | %i substitute the name of the input file being processed. | |
375 | %b substitute the basename of the input file being processed. | |
376 | This is the substring up to (and not including) the last period | |
377 | and not including the directory. | |
ea414c97 | 378 | %B same as %b, but include the file suffix (text after the last period). |
dd75c292 CB |
379 | %gSUFFIX |
380 | substitute a file name that has suffix SUFFIX and is chosen | |
381 | once per compilation, and mark the argument a la %d. To reduce | |
382 | exposure to denial-of-service attacks, the file name is now | |
383 | chosen in a way that is hard to predict even when previously | |
384 | chosen file names are known. For example, `%g.s ... %g.o ... %g.s' | |
385 | might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches | |
a1d9074c TT |
386 | the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it |
387 | had been pre-processed. Previously, %g was simply substituted | |
388 | with a file name chosen once per compilation, without regard | |
389 | to any appended suffix (which was therefore treated just like | |
390 | ordinary text), making such attacks more likely to succeed. | |
4977bab6 ZW |
391 | %|SUFFIX |
392 | like %g, but if -pipe is in effect, expands simply to "-". | |
393 | %mSUFFIX | |
394 | like %g, but if -pipe is in effect, expands to nothing. (We have both | |
395 | %| and %m to accommodate differences between system assemblers; see | |
396 | the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.) | |
dd75c292 CB |
397 | %uSUFFIX |
398 | like %g, but generates a new temporary file name even if %uSUFFIX | |
399 | was already seen. | |
400 | %USUFFIX | |
401 | substitutes the last file name generated with %uSUFFIX, generating a | |
402 | new one if there is no such last file name. In the absence of any | |
403 | %uSUFFIX, this is just like %gSUFFIX, except they don't share | |
404 | the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s' | |
405 | would involve the generation of two distinct file names, one | |
406 | for each `%g.s' and another for each `%U.s'. Previously, %U was | |
407 | simply substituted with a file name chosen for the previous %u, | |
408 | without regard to any appended suffix. | |
49009afd JL |
409 | %jSUFFIX |
410 | substitutes the name of the HOST_BIT_BUCKET, if any, and if it is | |
411 | writable, and if save-temps is off; otherwise, substitute the name | |
412 | of a temporary file, just like %u. This temporary file is not | |
413 | meant for communication between processes, but rather as a junk | |
414 | disposal mechanism. | |
11972f66 NS |
415 | %.SUFFIX |
416 | substitutes .SUFFIX for the suffixes of a matched switch's args when | |
417 | it is subsequently output with %*. SUFFIX is terminated by the next | |
418 | space or %. | |
ed1f651b RS |
419 | %d marks the argument containing or following the %d as a |
420 | temporary file name, so that that file will be deleted if CC exits | |
421 | successfully. Unlike %g, this contributes no text to the argument. | |
422 | %w marks the argument containing or following the %w as the | |
423 | "output file" of this compilation. This puts the argument | |
424 | into the sequence of arguments that %o will substitute later. | |
17211ab5 | 425 | %V indicates that this compilation produces no "output file". |
ed1f651b RS |
426 | %W{...} |
427 | like %{...} but mark last argument supplied within | |
428 | as a file to be deleted on failure. | |
429 | %o substitutes the names of all the output files, with spaces | |
430 | automatically placed around them. You should write spaces | |
431 | around the %o as well or the results are undefined. | |
432 | %o is for use in the specs for running the linker. | |
433 | Input files whose names have no recognized suffix are not compiled | |
434 | at all, but they are included among the output files, so they will | |
435 | be linked. | |
dd75c292 | 436 | %O substitutes the suffix for object files. Note that this is |
a1d9074c TT |
437 | handled specially when it immediately follows %g, %u, or %U |
438 | (with or without a suffix argument) because of the need for | |
439 | those to form complete file names. The handling is such that | |
440 | %O is treated exactly as if it had already been substituted, | |
441 | except that %g, %u, and %U do not currently support additional | |
442 | SUFFIX characters following %O as they would following, for | |
443 | example, `.o'. | |
047d636f DJ |
444 | %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot |
445 | (made from TARGET_SYSTEM_ROOT), and -isystem (made from COMPILER_PATH | |
446 | and -B options) as necessary. | |
ed1f651b RS |
447 | %s current argument is the name of a library or startup file of some sort. |
448 | Search for that file in a standard list of directories | |
449 | and substitute the full name found. | |
450 | %eSTR Print STR as an error message. STR is terminated by a newline. | |
451 | Use this when inconsistent options are detected. | |
09da1532 | 452 | %nSTR Print STR as a notice. STR is terminated by a newline. |
ed1f651b RS |
453 | %x{OPTION} Accumulate an option for %X. |
454 | %X Output the accumulated linker options specified by compilations. | |
c9ebacb8 | 455 | %Y Output the accumulated assembler options specified by compilations. |
57cb9b60 | 456 | %Z Output the accumulated preprocessor options specified by compilations. |
ed1f651b RS |
457 | %a process ASM_SPEC as a spec. |
458 | This allows config.h to specify part of the spec for running as. | |
459 | %A process ASM_FINAL_SPEC as a spec. A capital A is actually | |
460 | used here. This can be used to run a post-processor after the | |
9ec36da5 | 461 | assembler has done its job. |
48ff801b | 462 | %D Dump out a -L option for each directory in startfile_prefixes. |
60103a34 | 463 | If multilib_dir is set, extra entries are generated with it affixed. |
ed1f651b RS |
464 | %l process LINK_SPEC as a spec. |
465 | %L process LIB_SPEC as a spec. | |
68d69835 | 466 | %G process LIBGCC_SPEC as a spec. |
9db0819e RH |
467 | %M output multilib_dir with directory separators replaced with "_"; |
468 | if multilib_dir is not set or is ".", output "". | |
ed1f651b RS |
469 | %S process STARTFILE_SPEC as a spec. A capital S is actually used here. |
470 | %E process ENDFILE_SPEC as a spec. A capital E is actually used here. | |
9db0819e | 471 | %C process CPP_SPEC as a spec. |
ed1f651b RS |
472 | %1 process CC1_SPEC as a spec. |
473 | %2 process CC1PLUS_SPEC as a spec. | |
474 | %* substitute the variable part of a matched option. (See below.) | |
475 | Note that each comma in the substituted string is replaced by | |
476 | a single space. | |
4977bab6 ZW |
477 | %<S remove all occurrences of -S from the command line. |
478 | Note - this command is position dependent. % commands in the | |
479 | spec string before this one will see -S, % commands in the | |
480 | spec string after this one will not. | |
481 | %<S* remove all occurrences of all switches beginning with -S from the | |
482 | command line. | |
f3226a90 JT |
483 | %:function(args) |
484 | Call the named function FUNCTION, passing it ARGS. ARGS is | |
485 | first processed as a nested spec string, then split into an | |
486 | argument vector in the usual fashion. The function returns | |
487 | a string which is processed as if it had appeared literally | |
488 | as part of the current spec. | |
ed1f651b RS |
489 | %{S} substitutes the -S switch, if that switch was given to CC. |
490 | If that switch was not specified, this substitutes nothing. | |
491 | Here S is a metasyntactic variable. | |
492 | %{S*} substitutes all the switches specified to CC whose names start | |
196a37f4 | 493 | with -S. This is used for -o, -I, etc; switches that take |
ed1f651b RS |
494 | arguments. CC considers `-o foo' as being one switch whose |
495 | name starts with `o'. %{o*} would substitute this text, | |
496 | including the space; thus, two arguments would be generated. | |
196a37f4 | 497 | %{S*&T*} likewise, but preserve order of S and T options (the order |
1d088dee AJ |
498 | of S and T in the spec is not significant). Can be any number |
499 | of ampersand-separated variables; for each the wild card is | |
500 | optional. Useful for CPP as %{D*&U*&A*}. | |
4977bab6 ZW |
501 | |
502 | %{S:X} substitutes X, if the -S switch was given to CC. | |
503 | %{!S:X} substitutes X, if the -S switch was NOT given to CC. | |
504 | %{S*:X} substitutes X if one or more switches whose names start | |
505 | with -S was given to CC. Normally X is substituted only | |
506 | once, no matter how many such switches appeared. However, | |
507 | if %* appears somewhere in X, then X will be substituted | |
508 | once for each matching switch, with the %* replaced by the | |
509 | part of that switch that matched the '*'. | |
510 | %{.S:X} substitutes X, if processing a file with suffix S. | |
511 | %{!.S:X} substitutes X, if NOT processing a file with suffix S. | |
512 | ||
513 | %{S|T:X} substitutes X if either -S or -T was given to CC. This may be | |
514 | combined with !, ., and * as above binding stronger than the OR. | |
515 | If %* appears in X, all of the alternatives must be starred, and | |
516 | only the first matching alternative is substituted. | |
517 | %{S:X; if S was given to CC, substitutes X; | |
518 | T:Y; else if T was given to CC, substitutes Y; | |
519 | :D} else substitutes D. There can be as many clauses as you need. | |
520 | This may be combined with ., !, |, and * as above. | |
521 | ||
b3865ca9 | 522 | %(Spec) processes a specification defined in a specs file as *Spec: |
4089dfab | 523 | %[Spec] as above, but put __ around -D arguments |
ed1f651b | 524 | |
4977bab6 | 525 | The conditional text X in a %{S:X} or similar construct may contain |
ed1f651b | 526 | other nested % constructs or spaces, or even newlines. They are |
4977bab6 ZW |
527 | processed as usual, as described above. Trailing white space in X is |
528 | ignored. White space may also appear anywhere on the left side of the | |
529 | colon in these constructs, except between . or * and the corresponding | |
530 | word. | |
ed1f651b | 531 | |
6c396fb5 | 532 | The -O, -f, -m, and -W switches are handled specifically in these |
f5b0eb4e RK |
533 | constructs. If another value of -O or the negated form of a -f, -m, or |
534 | -W switch is found later in the command line, the earlier switch | |
6c396fb5 RK |
535 | value is ignored, except with {S*} where S is just one letter; this |
536 | passes all matching options. | |
f5b0eb4e | 537 | |
9bf09437 RH |
538 | The character | at the beginning of the predicate text is used to indicate |
539 | that a command should be piped to the following command, but only if -pipe | |
540 | is specified. | |
ed1f651b RS |
541 | |
542 | Note that it is built into CC which switches take arguments and which | |
543 | do not. You might think it would be useful to generalize this to | |
544 | allow each compiler's spec to say which switches take arguments. But | |
545 | this cannot be done in a consistent fashion. CC cannot even decide | |
546 | which input files have been specified without knowing which switches | |
547 | take arguments, and it must know which input files to compile in order | |
548 | to tell which compilers to run. | |
549 | ||
550 | CC also knows implicitly that arguments starting in `-l' are to be | |
551 | treated as compiler output files, and passed to the linker in their | |
552 | proper position among the other output files. */ | |
553 | \f | |
0fef3fd0 | 554 | /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */ |
ed1f651b RS |
555 | |
556 | /* config.h can define ASM_SPEC to provide extra args to the assembler | |
557 | or extra switch-translations. */ | |
558 | #ifndef ASM_SPEC | |
559 | #define ASM_SPEC "" | |
560 | #endif | |
561 | ||
562 | /* config.h can define ASM_FINAL_SPEC to run a post processor after | |
563 | the assembler has run. */ | |
564 | #ifndef ASM_FINAL_SPEC | |
565 | #define ASM_FINAL_SPEC "" | |
566 | #endif | |
567 | ||
568 | /* config.h can define CPP_SPEC to provide extra args to the C preprocessor | |
569 | or extra switch-translations. */ | |
570 | #ifndef CPP_SPEC | |
571 | #define CPP_SPEC "" | |
572 | #endif | |
573 | ||
574 | /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus | |
575 | or extra switch-translations. */ | |
576 | #ifndef CC1_SPEC | |
577 | #define CC1_SPEC "" | |
578 | #endif | |
579 | ||
580 | /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus | |
581 | or extra switch-translations. */ | |
582 | #ifndef CC1PLUS_SPEC | |
583 | #define CC1PLUS_SPEC "" | |
584 | #endif | |
585 | ||
586 | /* config.h can define LINK_SPEC to provide extra args to the linker | |
587 | or extra switch-translations. */ | |
588 | #ifndef LINK_SPEC | |
589 | #define LINK_SPEC "" | |
590 | #endif | |
591 | ||
592 | /* config.h can define LIB_SPEC to override the default libraries. */ | |
593 | #ifndef LIB_SPEC | |
68d69835 JM |
594 | #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}" |
595 | #endif | |
596 | ||
597 | /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is | |
598 | included. */ | |
599 | #ifndef LIBGCC_SPEC | |
600 | #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1) | |
601 | /* Have gcc do the search for libgcc.a. */ | |
ba2b7435 | 602 | #define LIBGCC_SPEC "libgcc.a%s" |
68d69835 | 603 | #else |
ba2b7435 | 604 | #define LIBGCC_SPEC "-lgcc" |
68d69835 | 605 | #endif |
ed1f651b RS |
606 | #endif |
607 | ||
608 | /* config.h can define STARTFILE_SPEC to override the default crt0 files. */ | |
609 | #ifndef STARTFILE_SPEC | |
610 | #define STARTFILE_SPEC \ | |
adcb8d7d | 611 | "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}" |
ed1f651b RS |
612 | #endif |
613 | ||
bb9da768 RK |
614 | /* config.h can define SWITCHES_NEED_SPACES to control which options |
615 | require spaces between the option and the argument. */ | |
ed1f651b RS |
616 | #ifndef SWITCHES_NEED_SPACES |
617 | #define SWITCHES_NEED_SPACES "" | |
618 | #endif | |
619 | ||
620 | /* config.h can define ENDFILE_SPEC to override the default crtn files. */ | |
621 | #ifndef ENDFILE_SPEC | |
622 | #define ENDFILE_SPEC "" | |
623 | #endif | |
624 | ||
10da1131 BM |
625 | #ifndef LINKER_NAME |
626 | #define LINKER_NAME "collect2" | |
627 | #endif | |
628 | ||
5f0e9ea2 GK |
629 | /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g' |
630 | to the assembler. */ | |
631 | #ifndef ASM_DEBUG_SPEC | |
b2ace8a4 JJ |
632 | # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \ |
633 | && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG) | |
634 | # define ASM_DEBUG_SPEC \ | |
8a63621f JJ |
635 | (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \ |
636 | ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \ | |
637 | : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}") | |
b2ace8a4 JJ |
638 | # else |
639 | # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG) | |
640 | # define ASM_DEBUG_SPEC "%{g*:--gstabs}" | |
641 | # endif | |
642 | # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) | |
643 | # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}" | |
5f0e9ea2 | 644 | # endif |
5f0e9ea2 GK |
645 | # endif |
646 | #endif | |
8a63621f JJ |
647 | #ifndef ASM_DEBUG_SPEC |
648 | # define ASM_DEBUG_SPEC "" | |
649 | #endif | |
5f0e9ea2 | 650 | |
ea414c97 ZW |
651 | /* Here is the spec for running the linker, after compiling all files. */ |
652 | ||
bbd7687d DM |
653 | /* This is overridable by the target in case they need to specify the |
654 | -lgcc and -lc order specially, yet not require them to override all | |
655 | of LINK_COMMAND_SPEC. */ | |
656 | #ifndef LINK_GCC_C_SEQUENCE_SPEC | |
657 | #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G" | |
658 | #endif | |
659 | ||
24a4dd31 JJ |
660 | #ifndef LINK_PIE_SPEC |
661 | #ifdef HAVE_LD_PIE | |
662 | #define LINK_PIE_SPEC "%{pie:-pie} " | |
663 | #else | |
664 | #define LINK_PIE_SPEC "%{pie:} " | |
665 | #endif | |
666 | #endif | |
667 | ||
ea414c97 ZW |
668 | /* -u* was put back because both BSD and SysV seem to support it. */ |
669 | /* %{static:} simply prevents an error message if the target machine | |
670 | doesn't handle -static. */ | |
671 | /* We want %{T*} after %{L*} and %D so that it can be used to specify linker | |
672 | scripts which exist in user specified directories, or in standard | |
673 | directories. */ | |
674 | #ifndef LINK_COMMAND_SPEC | |
675 | #define LINK_COMMAND_SPEC "\ | |
676 | %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\ | |
24a4dd31 JJ |
677 | %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\ |
678 | %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\ | |
23af32e6 NS |
679 | %{static:} %{L*} %(link_libgcc) %o %{fprofile-arcs:-lgcov}\ |
680 | %{!nostdlib:%{!nodefaultlibs:%(link_gcc_c_sequence)}}\ | |
ea414c97 ZW |
681 | %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}" |
682 | #endif | |
683 | ||
684 | #ifndef LINK_LIBGCC_SPEC | |
685 | # ifdef LINK_LIBGCC_SPECIAL | |
686 | /* Don't generate -L options for startfile prefix list. */ | |
687 | # define LINK_LIBGCC_SPEC "" | |
688 | # else | |
689 | /* Do generate them. */ | |
690 | # define LINK_LIBGCC_SPEC "%D" | |
691 | # endif | |
692 | #endif | |
693 | ||
343f59d9 AM |
694 | #ifndef STARTFILE_PREFIX_SPEC |
695 | # define STARTFILE_PREFIX_SPEC "" | |
696 | #endif | |
697 | ||
e7f13528 GP |
698 | #ifndef SYSROOT_SUFFIX_SPEC |
699 | # define SYSROOT_SUFFIX_SPEC "" | |
700 | #endif | |
701 | ||
702 | #ifndef SYSROOT_HEADERS_SUFFIX_SPEC | |
703 | # define SYSROOT_HEADERS_SUFFIX_SPEC "" | |
704 | #endif | |
705 | ||
81bca2f5 | 706 | static const char *asm_debug; |
3b304f5b | 707 | static const char *cpp_spec = CPP_SPEC; |
3b304f5b ZW |
708 | static const char *cc1_spec = CC1_SPEC; |
709 | static const char *cc1plus_spec = CC1PLUS_SPEC; | |
bbd7687d | 710 | static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC; |
3b304f5b ZW |
711 | static const char *asm_spec = ASM_SPEC; |
712 | static const char *asm_final_spec = ASM_FINAL_SPEC; | |
713 | static const char *link_spec = LINK_SPEC; | |
714 | static const char *lib_spec = LIB_SPEC; | |
715 | static const char *libgcc_spec = LIBGCC_SPEC; | |
716 | static const char *endfile_spec = ENDFILE_SPEC; | |
717 | static const char *startfile_spec = STARTFILE_SPEC; | |
718 | static const char *switches_need_spaces = SWITCHES_NEED_SPACES; | |
719 | static const char *linker_name_spec = LINKER_NAME; | |
ea414c97 ZW |
720 | static const char *link_command_spec = LINK_COMMAND_SPEC; |
721 | static const char *link_libgcc_spec = LINK_LIBGCC_SPEC; | |
343f59d9 | 722 | static const char *startfile_prefix_spec = STARTFILE_PREFIX_SPEC; |
e7f13528 GP |
723 | static const char *sysroot_suffix_spec = SYSROOT_SUFFIX_SPEC; |
724 | static const char *sysroot_hdrs_suffix_spec = SYSROOT_HEADERS_SUFFIX_SPEC; | |
ea414c97 ZW |
725 | |
726 | /* Standard options to cpp, cc1, and as, to reduce duplication in specs. | |
727 | There should be no need to override these in target dependent files, | |
728 | but we need to copy them to the specs file so that newer versions | |
729 | of the GCC driver can correctly drive older tool chains with the | |
730 | appropriate -B options. */ | |
731 | ||
e5f5feea NB |
732 | /* When cpplib handles traditional preprocessing, get rid of this, and |
733 | call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so | |
734 | that we default the front end language better. */ | |
ea414c97 | 735 | static const char *trad_capable_cpp = |
017acb41 | 736 | "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}"; |
ea414c97 | 737 | |
4ca1256f NB |
738 | /* We don't wrap .d files in %W{} since a missing .d file, and |
739 | therefore no dependency entry, confuses make into thinking a .o | |
740 | file that happens to exist is up-to-date. */ | |
ffdeea47 | 741 | static const char *cpp_unique_options = |
cb60f38d | 742 | "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\ |
4b7091eb | 743 | %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*} %{P} %I\ |
4ca1256f NB |
744 | %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\ |
745 | %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\ | |
746 | %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\ | |
56cd5b95 | 747 | %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\ |
c08f71aa | 748 | %{trigraphs} %{remap} %{g3:-dD} %{H} %C %{D*&U*&A*} %{i*} %Z %i\ |
56cd5b95 | 749 | %{E|M|MM:%W{o*}}"; |
ffdeea47 JJ |
750 | |
751 | /* This contains cpp options which are common with cc1_options and are passed | |
059ba716 CD |
752 | only when preprocessing only to avoid duplication. We pass the cc1 spec |
753 | options to the preprocessor so that it the cc1 spec may manipulate | |
754 | options used to set target flags. Those special target flags settings may | |
755 | in turn cause preprocessor symbols to be defined specially. */ | |
ffdeea47 | 756 | static const char *cpp_options = |
5febdf0d | 757 | "%(cpp_unique_options) %1 %{m*} %{std*} %{ansi} %{W*&pedantic*} %{w} %{f*}\ |
5c8d9040 | 758 | %{g*:%{!g0:%{!fno-working-directory:-fworking-directory}}} %{O*} %{undef}"; |
ea414c97 | 759 | |
8b968bd1 MW |
760 | /* This contains cpp options which are not passed when the preprocessor |
761 | output will be used by another program. */ | |
762 | static const char *cpp_debug_options = "%{d*}"; | |
763 | ||
5a8e2650 | 764 | /* NB: This is shared amongst all front-ends. */ |
ea414c97 ZW |
765 | static const char *cc1_options = |
766 | "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\ | |
767 | %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\ | |
f7e466a3 | 768 | -auxbase%{c|S:%{o*:-strip %*}%{!o*: %b}}%{!c:%{!S: %b}}\ |
1de38a88 | 769 | %{g*} %{O*} %{W*&pedantic*} %{w} %{std*} %{ansi}\ |
3df89291 | 770 | %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\ |
c47af4b7 | 771 | %{Qn:-fno-ident} %{--help:--help}\ |
91606ce2 | 772 | %{--target-help:--target-help}\ |
49009afd | 773 | %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\ |
d991c721 | 774 | %{fsyntax-only:-o %j} %{-param*}"; |
ea414c97 ZW |
775 | |
776 | static const char *asm_options = | |
777 | "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}"; | |
ffd86336 | 778 | |
5a8e2650 | 779 | static const char *invoke_as = |
4977bab6 ZW |
780 | #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT |
781 | "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }"; | |
782 | #else | |
783 | "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }"; | |
784 | #endif | |
5a8e2650 | 785 | |
ffd86336 | 786 | /* Some compilers have limits on line lengths, and the multilib_select |
961b7009 MM |
787 | and/or multilib_matches strings can be very long, so we build them at |
788 | run time. */ | |
ffd86336 | 789 | static struct obstack multilib_obstack; |
3b304f5b ZW |
790 | static const char *multilib_select; |
791 | static const char *multilib_matches; | |
792 | static const char *multilib_defaults; | |
793 | static const char *multilib_exclusions; | |
961b7009 MM |
794 | #include "multilib.h" |
795 | ||
796 | /* Check whether a particular argument is a default argument. */ | |
797 | ||
798 | #ifndef MULTILIB_DEFAULTS | |
799 | #define MULTILIB_DEFAULTS { "" } | |
800 | #endif | |
801 | ||
d25a45d4 | 802 | static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS; |
ed1f651b | 803 | |
db36994b RS |
804 | #ifndef DRIVER_SELF_SPECS |
805 | #define DRIVER_SELF_SPECS "" | |
806 | #endif | |
807 | ||
808 | static const char *const driver_self_specs[] = { DRIVER_SELF_SPECS }; | |
809 | ||
7816bea0 DJ |
810 | #ifndef OPTION_DEFAULT_SPECS |
811 | #define OPTION_DEFAULT_SPECS { "", "" } | |
812 | #endif | |
813 | ||
814 | struct default_spec | |
815 | { | |
816 | const char *name; | |
817 | const char *spec; | |
818 | }; | |
819 | ||
820 | static const struct default_spec | |
821 | option_default_specs[] = { OPTION_DEFAULT_SPECS }; | |
822 | ||
3ac63d94 NC |
823 | struct user_specs |
824 | { | |
d9ac3a07 | 825 | struct user_specs *next; |
878f32c3 | 826 | const char *filename; |
d9ac3a07 MM |
827 | }; |
828 | ||
829 | static struct user_specs *user_specs_head, *user_specs_tail; | |
830 | ||
815cf875 RK |
831 | #ifndef SWITCH_TAKES_ARG |
832 | #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR) | |
ed1f651b RS |
833 | #endif |
834 | ||
3b39b94f ILT |
835 | #ifndef WORD_SWITCH_TAKES_ARG |
836 | #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR) | |
ed1f651b RS |
837 | #endif |
838 | \f | |
45936a85 | 839 | #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX |
88117d44 NC |
840 | /* This defines which switches stop a full compilation. */ |
841 | #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \ | |
842 | ((CHAR) == 'c' || (CHAR) == 'S') | |
843 | ||
844 | #ifndef SWITCH_CURTAILS_COMPILATION | |
845 | #define SWITCH_CURTAILS_COMPILATION(CHAR) \ | |
846 | DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) | |
847 | #endif | |
848 | #endif | |
849 | ||
ed1f651b RS |
850 | /* Record the mapping from file suffixes for compilation specs. */ |
851 | ||
852 | struct compiler | |
853 | { | |
878f32c3 | 854 | const char *suffix; /* Use this compiler for input files |
ed1f651b | 855 | whose names end in this suffix. */ |
ec32609a | 856 | |
ea414c97 | 857 | const char *spec; /* To use this compiler, run this spec. */ |
a9374841 MM |
858 | |
859 | const char *cpp_spec; /* If non-NULL, substitute this spec | |
860 | for `%C', rather than the usual | |
861 | cpp_spec. */ | |
ed1f651b RS |
862 | }; |
863 | ||
864 | /* Pointer to a vector of `struct compiler' that gives the spec for | |
865 | compiling a file, based on its suffix. | |
866 | A file that does not end in any of these suffixes will be passed | |
867 | unchanged to the loader and nothing else will be done to it. | |
868 | ||
869 | An entry containing two 0s is used to terminate the vector. | |
870 | ||
871 | If multiple entries match a file, the last matching one is used. */ | |
872 | ||
873 | static struct compiler *compilers; | |
874 | ||
875 | /* Number of entries in `compilers', not counting the null terminator. */ | |
876 | ||
877 | static int n_compilers; | |
878 | ||
879 | /* The default list of file name suffixes and their compilation specs. */ | |
880 | ||
5e65297b | 881 | static const struct compiler default_compilers[] = |
ed1f651b | 882 | { |
4689ad58 | 883 | /* Add lists of suffixes of known languages here. If those languages |
e9a25f70 JL |
884 | were not present when we built the driver, we will hit these copies |
885 | and be given a more meaningful error than "file not used since | |
4689ad58 | 886 | linking is not done". */ |
d991c721 BK |
887 | {".m", "#Objective-C", 0}, {".mi", "#Objective-C", 0}, |
888 | {".cc", "#C++", 0}, {".cxx", "#C++", 0}, {".cpp", "#C++", 0}, | |
889 | {".cp", "#C++", 0}, {".c++", "#C++", 0}, {".C", "#C++", 0}, | |
ee8acf89 | 890 | {".CPP", "#C++", 0}, {".ii", "#C++", 0}, |
7fb56130 | 891 | {".ads", "#Ada", 0}, {".adb", "#Ada", 0}, |
d991c721 BK |
892 | {".f", "#Fortran", 0}, {".for", "#Fortran", 0}, {".fpp", "#Fortran", 0}, |
893 | {".F", "#Fortran", 0}, {".FOR", "#Fortran", 0}, {".FPP", "#Fortran", 0}, | |
894 | {".r", "#Ratfor", 0}, | |
895 | {".p", "#Pascal", 0}, {".pas", "#Pascal", 0}, | |
d991c721 BK |
896 | {".java", "#Java", 0}, {".class", "#Java", 0}, |
897 | {".zip", "#Java", 0}, {".jar", "#Java", 0}, | |
4689ad58 | 898 | /* Next come the entries for C. */ |
d991c721 | 899 | {".c", "@c", 0}, |
ed1f651b | 900 | {"@c", |
5a8e2650 | 901 | /* cc1 has an integrated ISO C preprocessor. We should invoke the |
f458d1d5 | 902 | external preprocessor if -save-temps is given. */ |
f749a36b | 903 | "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\ |
5a8e2650 | 904 | %{!E:%{!M:%{!MM:\ |
f458d1d5 ZW |
905 | %{traditional|ftraditional:\ |
906 | %eGNU C no longer supports -traditional without -E}\ | |
8a035a6b | 907 | %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \ |
0de12fcc GK |
908 | %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\ |
909 | cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \ | |
910 | %(cc1_options)}\ | |
8a035a6b AH |
911 | %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\ |
912 | cc1 %(cpp_unique_options) %(cc1_options)}}}\ | |
d991c721 | 913 | %{!fsyntax-only:%(invoke_as)}}}}", 0}, |
ed1f651b | 914 | {"-", |
ea414c97 | 915 | "%{!E:%e-E required when input is from standard input}\ |
5febdf0d | 916 | %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0}, |
d991c721 | 917 | {".h", "@c-header", 0}, |
ed1f651b | 918 | {"@c-header", |
17211ab5 GK |
919 | /* cc1 has an integrated ISO C preprocessor. We should invoke the |
920 | external preprocessor if -save-temps is given. */ | |
921 | "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\ | |
922 | %{!E:%{!M:%{!MM:\ | |
0de12fcc GK |
923 | %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \ |
924 | %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\ | |
925 | cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \ | |
926 | %(cc1_options)\ | |
d8fad4ea | 927 | -o %g.s %{!o*:--output-pch=%i.gch}\ |
17211ab5 | 928 | %W{o*:--output-pch=%*}%V}\ |
0de12fcc | 929 | %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\ |
17211ab5 | 930 | cc1 %(cpp_unique_options) %(cc1_options)\ |
d8fad4ea | 931 | -o %g.s %{!o*:--output-pch=%i.gch}\ |
0de12fcc | 932 | %W{o*:--output-pch=%*}%V}}}}}}", 0}, |
d991c721 | 933 | {".i", "@cpp-output", 0}, |
ed1f651b | 934 | {"@cpp-output", |
d991c721 BK |
935 | "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0}, |
936 | {".s", "@assembler", 0}, | |
ed1f651b | 937 | {"@assembler", |
5f0e9ea2 | 938 | "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0}, |
d991c721 | 939 | {".S", "@assembler-with-cpp", 0}, |
ed1f651b | 940 | {"@assembler-with-cpp", |
4977bab6 | 941 | #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT |
5a8e2650 | 942 | "%(trad_capable_cpp) -lang-asm %(cpp_options)\ |
8b968bd1 | 943 | %{E|M|MM:%(cpp_debug_options)}\ |
4977bab6 ZW |
944 | %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\ |
945 | as %(asm_debug) %(asm_options) %|.s %A }}}}" | |
946 | #else | |
947 | "%(trad_capable_cpp) -lang-asm %(cpp_options)\ | |
948 | %{E|M|MM:%(cpp_debug_options)}\ | |
949 | %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\ | |
950 | as %(asm_debug) %(asm_options) %m.s %A }}}}" | |
951 | #endif | |
952 | , 0}, | |
1d088dee | 953 | |
1346ae41 | 954 | #include "specs.h" |
f9da5064 | 955 | /* Mark end of table. */ |
d991c721 | 956 | {0, 0, 0} |
ed1f651b RS |
957 | }; |
958 | ||
959 | /* Number of elements in default_compilers, not counting the terminator. */ | |
960 | ||
ca7558fc | 961 | static const int n_default_compilers = ARRAY_SIZE (default_compilers) - 1; |
ed1f651b | 962 | |
ed1f651b | 963 | /* A vector of options to give to the linker. |
368dfd3a | 964 | These options are accumulated by %x, |
ed1f651b RS |
965 | and substituted into the linker command with %X. */ |
966 | static int n_linker_options; | |
967 | static char **linker_options; | |
c9ebacb8 RS |
968 | |
969 | /* A vector of options to give to the assembler. | |
970 | These options are accumulated by -Wa, | |
57cb9b60 | 971 | and substituted into the assembler command with %Y. */ |
c9ebacb8 RS |
972 | static int n_assembler_options; |
973 | static char **assembler_options; | |
57cb9b60 JW |
974 | |
975 | /* A vector of options to give to the preprocessor. | |
976 | These options are accumulated by -Wp, | |
977 | and substituted into the preprocessor command with %Z. */ | |
978 | static int n_preprocessor_options; | |
979 | static char **preprocessor_options; | |
ed1f651b | 980 | \f |
f2faf549 RS |
981 | /* Define how to map long options into short ones. */ |
982 | ||
983 | /* This structure describes one mapping. */ | |
984 | struct option_map | |
985 | { | |
986 | /* The long option's name. */ | |
8b60264b | 987 | const char *const name; |
f2faf549 | 988 | /* The equivalent short option. */ |
8b60264b | 989 | const char *const equivalent; |
f2faf549 RS |
990 | /* Argument info. A string of flag chars; NULL equals no options. |
991 | a => argument required. | |
992 | o => argument optional. | |
993 | j => join argument to equivalent, making one word. | |
92bd6bdc | 994 | * => require other text after NAME as an argument. */ |
8b60264b | 995 | const char *const arg_info; |
f2faf549 RS |
996 | }; |
997 | ||
998 | /* This is the table of mappings. Mappings are tried sequentially | |
999 | for each option encountered; the first one that matches, wins. */ | |
1000 | ||
8b60264b | 1001 | static const struct option_map option_map[] = |
f2faf549 | 1002 | { |
92bd6bdc RK |
1003 | {"--all-warnings", "-Wall", 0}, |
1004 | {"--ansi", "-ansi", 0}, | |
1005 | {"--assemble", "-S", 0}, | |
1006 | {"--assert", "-A", "a"}, | |
645278bc | 1007 | {"--classpath", "-fclasspath=", "aj"}, |
c26a6db8 PB |
1008 | {"--bootclasspath", "-fbootclasspath=", "aj"}, |
1009 | {"--CLASSPATH", "-fclasspath=", "aj"}, | |
92bd6bdc | 1010 | {"--comments", "-C", 0}, |
477cdac7 | 1011 | {"--comments-in-macros", "-CC", 0}, |
f2faf549 | 1012 | {"--compile", "-c", 0}, |
92bd6bdc | 1013 | {"--debug", "-g", "oj"}, |
5a570ade | 1014 | {"--define-macro", "-D", "aj"}, |
92bd6bdc | 1015 | {"--dependencies", "-M", 0}, |
f2faf549 | 1016 | {"--dump", "-d", "a"}, |
92bd6bdc | 1017 | {"--dumpbase", "-dumpbase", "a"}, |
f2faf549 | 1018 | {"--entry", "-e", 0}, |
92bd6bdc RK |
1019 | {"--extra-warnings", "-W", 0}, |
1020 | {"--for-assembler", "-Wa", "a"}, | |
1021 | {"--for-linker", "-Xlinker", "a"}, | |
1022 | {"--force-link", "-u", "a"}, | |
f2faf549 | 1023 | {"--imacros", "-imacros", "a"}, |
92bd6bdc RK |
1024 | {"--include", "-include", "a"}, |
1025 | {"--include-barrier", "-I-", 0}, | |
5a570ade | 1026 | {"--include-directory", "-I", "aj"}, |
f2faf549 | 1027 | {"--include-directory-after", "-idirafter", "a"}, |
92bd6bdc | 1028 | {"--include-prefix", "-iprefix", "a"}, |
f2faf549 | 1029 | {"--include-with-prefix", "-iwithprefix", "a"}, |
8b3d0251 RS |
1030 | {"--include-with-prefix-before", "-iwithprefixbefore", "a"}, |
1031 | {"--include-with-prefix-after", "-iwithprefix", "a"}, | |
92bd6bdc RK |
1032 | {"--language", "-x", "a"}, |
1033 | {"--library-directory", "-L", "a"}, | |
f2faf549 | 1034 | {"--machine", "-m", "aj"}, |
92bd6bdc | 1035 | {"--machine-", "-m", "*j"}, |
8a035a6b | 1036 | {"--no-integrated-cpp", "-no-integrated-cpp", 0}, |
92bd6bdc RK |
1037 | {"--no-line-commands", "-P", 0}, |
1038 | {"--no-precompiled-includes", "-noprecomp", 0}, | |
f2faf549 RS |
1039 | {"--no-standard-includes", "-nostdinc", 0}, |
1040 | {"--no-standard-libraries", "-nostdlib", 0}, | |
f2faf549 | 1041 | {"--no-warnings", "-w", 0}, |
f2faf549 | 1042 | {"--optimize", "-O", "oj"}, |
92bd6bdc | 1043 | {"--output", "-o", "a"}, |
36696297 | 1044 | {"--output-class-directory", "-foutput-class-dir=", "ja"}, |
d991c721 | 1045 | {"--param", "--param", "a"}, |
f2faf549 RS |
1046 | {"--pedantic", "-pedantic", 0}, |
1047 | {"--pedantic-errors", "-pedantic-errors", 0}, | |
24a4dd31 | 1048 | {"--pie", "-pie", 0}, |
92bd6bdc RK |
1049 | {"--pipe", "-pipe", 0}, |
1050 | {"--prefix", "-B", "a"}, | |
1051 | {"--preprocess", "-E", 0}, | |
2628b9d3 | 1052 | {"--print-search-dirs", "-print-search-dirs", 0}, |
6a9e290e | 1053 | {"--print-file-name", "-print-file-name=", "aj"}, |
92bd6bdc RK |
1054 | {"--print-libgcc-file-name", "-print-libgcc-file-name", 0}, |
1055 | {"--print-missing-file-dependencies", "-MG", 0}, | |
60103a34 DE |
1056 | {"--print-multi-lib", "-print-multi-lib", 0}, |
1057 | {"--print-multi-directory", "-print-multi-directory", 0}, | |
5bbcd587 | 1058 | {"--print-multi-os-directory", "-print-multi-os-directory", 0}, |
92bd6bdc RK |
1059 | {"--print-prog-name", "-print-prog-name=", "aj"}, |
1060 | {"--profile", "-p", 0}, | |
1061 | {"--profile-blocks", "-a", 0}, | |
1062 | {"--quiet", "-q", 0}, | |
50cb2154 | 1063 | {"--resource", "-fcompile-resource=", "aj"}, |
92bd6bdc | 1064 | {"--save-temps", "-save-temps", 0}, |
f2faf549 | 1065 | {"--shared", "-shared", 0}, |
92bd6bdc | 1066 | {"--silent", "-q", 0}, |
d9ac3a07 | 1067 | {"--specs", "-specs=", "aj"}, |
92bd6bdc | 1068 | {"--static", "-static", 0}, |
6f4d7222 | 1069 | {"--std", "-std=", "aj"}, |
f2faf549 | 1070 | {"--symbolic", "-symbolic", 0}, |
03c41c05 | 1071 | {"--time", "-time", 0}, |
92bd6bdc RK |
1072 | {"--trace-includes", "-H", 0}, |
1073 | {"--traditional", "-traditional", 0}, | |
1074 | {"--traditional-cpp", "-traditional-cpp", 0}, | |
1075 | {"--trigraphs", "-trigraphs", 0}, | |
5a570ade | 1076 | {"--undefine-macro", "-U", "aj"}, |
92bd6bdc RK |
1077 | {"--user-dependencies", "-MM", 0}, |
1078 | {"--verbose", "-v", 0}, | |
92bd6bdc RK |
1079 | {"--warn-", "-W", "*j"}, |
1080 | {"--write-dependencies", "-MD", 0}, | |
1081 | {"--write-user-dependencies", "-MMD", 0}, | |
f2faf549 RS |
1082 | {"--", "-f", "*j"} |
1083 | }; | |
1084 | \f | |
0259b07a DD |
1085 | |
1086 | #ifdef TARGET_OPTION_TRANSLATE_TABLE | |
8b60264b KG |
1087 | static const struct { |
1088 | const char *const option_found; | |
1089 | const char *const replacements; | |
0259b07a DD |
1090 | } target_option_translations[] = |
1091 | { | |
1092 | TARGET_OPTION_TRANSLATE_TABLE, | |
1093 | { 0, 0 } | |
1094 | }; | |
1095 | #endif | |
1096 | ||
f2faf549 RS |
1097 | /* Translate the options described by *ARGCP and *ARGVP. |
1098 | Make a new vector and store it back in *ARGVP, | |
1099 | and store its length in *ARGVC. */ | |
1100 | ||
1101 | static void | |
1d088dee | 1102 | translate_options (int *argcp, const char *const **argvp) |
f2faf549 | 1103 | { |
e51712db | 1104 | int i; |
f2faf549 | 1105 | int argc = *argcp; |
37620334 | 1106 | const char *const *argv = *argvp; |
0259b07a | 1107 | int newvsize = (argc + 2) * 2 * sizeof (const char *); |
703ad42b | 1108 | const char **newv = xmalloc (newvsize); |
f2faf549 RS |
1109 | int newindex = 0; |
1110 | ||
1111 | i = 0; | |
1112 | newv[newindex++] = argv[i++]; | |
1113 | ||
1114 | while (i < argc) | |
1115 | { | |
0259b07a DD |
1116 | #ifdef TARGET_OPTION_TRANSLATE_TABLE |
1117 | int tott_idx; | |
1118 | ||
1119 | for (tott_idx = 0; | |
1120 | target_option_translations[tott_idx].option_found; | |
1121 | tott_idx++) | |
1122 | { | |
1123 | if (strcmp (target_option_translations[tott_idx].option_found, | |
1124 | argv[i]) == 0) | |
1125 | { | |
1126 | int spaces = 1; | |
1127 | const char *sp; | |
1128 | char *np; | |
1129 | ||
1130 | for (sp = target_option_translations[tott_idx].replacements; | |
1131 | *sp; sp++) | |
1132 | { | |
1133 | if (*sp == ' ') | |
1134 | spaces ++; | |
1135 | } | |
1136 | ||
1137 | newvsize += spaces * sizeof (const char *); | |
703ad42b | 1138 | newv = xrealloc (newv, newvsize); |
0259b07a DD |
1139 | |
1140 | sp = target_option_translations[tott_idx].replacements; | |
cb6edbcb | 1141 | np = xstrdup (sp); |
0259b07a DD |
1142 | |
1143 | while (1) | |
1144 | { | |
1145 | while (*np == ' ') | |
1146 | np++; | |
1147 | if (*np == 0) | |
1148 | break; | |
1149 | newv[newindex++] = np; | |
1150 | while (*np != ' ' && *np) | |
1151 | np++; | |
1152 | if (*np == 0) | |
1153 | break; | |
1154 | *np++ = 0; | |
1155 | } | |
1156 | ||
1157 | i ++; | |
1158 | break; | |
1159 | } | |
1160 | } | |
1161 | if (target_option_translations[tott_idx].option_found) | |
1162 | continue; | |
1163 | #endif | |
1164 | ||
f2faf549 RS |
1165 | /* Translate -- options. */ |
1166 | if (argv[i][0] == '-' && argv[i][1] == '-') | |
1167 | { | |
e51712db | 1168 | size_t j; |
f2faf549 | 1169 | /* Find a mapping that applies to this option. */ |
b6a1cbae | 1170 | for (j = 0; j < ARRAY_SIZE (option_map); j++) |
f2faf549 | 1171 | { |
85066503 MH |
1172 | size_t optlen = strlen (option_map[j].name); |
1173 | size_t arglen = strlen (argv[i]); | |
1174 | size_t complen = arglen > optlen ? optlen : arglen; | |
878f32c3 | 1175 | const char *arginfo = option_map[j].arg_info; |
cc198f10 RS |
1176 | |
1177 | if (arginfo == 0) | |
1178 | arginfo = ""; | |
92bd6bdc | 1179 | |
f2faf549 RS |
1180 | if (!strncmp (argv[i], option_map[j].name, complen)) |
1181 | { | |
878f32c3 | 1182 | const char *arg = 0; |
f2faf549 | 1183 | |
92bd6bdc RK |
1184 | if (arglen < optlen) |
1185 | { | |
e51712db | 1186 | size_t k; |
b6a1cbae | 1187 | for (k = j + 1; k < ARRAY_SIZE (option_map); k++) |
92bd6bdc RK |
1188 | if (strlen (option_map[k].name) >= arglen |
1189 | && !strncmp (argv[i], option_map[k].name, arglen)) | |
1190 | { | |
1f978f5f | 1191 | error ("ambiguous abbreviation %s", argv[i]); |
92bd6bdc RK |
1192 | break; |
1193 | } | |
1194 | ||
b6a1cbae | 1195 | if (k != ARRAY_SIZE (option_map)) |
92bd6bdc RK |
1196 | break; |
1197 | } | |
1198 | ||
1199 | if (arglen > optlen) | |
f2faf549 RS |
1200 | { |
1201 | /* If the option has an argument, accept that. */ | |
1202 | if (argv[i][optlen] == '=') | |
1203 | arg = argv[i] + optlen + 1; | |
92bd6bdc RK |
1204 | |
1205 | /* If this mapping requires extra text at end of name, | |
f2faf549 | 1206 | accept that as "argument". */ |
9473c522 | 1207 | else if (strchr (arginfo, '*') != 0) |
f2faf549 | 1208 | arg = argv[i] + optlen; |
92bd6bdc | 1209 | |
f2faf549 RS |
1210 | /* Otherwise, extra text at end means mismatch. |
1211 | Try other mappings. */ | |
1212 | else | |
1213 | continue; | |
1214 | } | |
92bd6bdc | 1215 | |
9473c522 | 1216 | else if (strchr (arginfo, '*') != 0) |
92bd6bdc | 1217 | { |
1f978f5f | 1218 | error ("incomplete `%s' option", option_map[j].name); |
92bd6bdc RK |
1219 | break; |
1220 | } | |
f2faf549 RS |
1221 | |
1222 | /* Handle arguments. */ | |
9473c522 | 1223 | if (strchr (arginfo, 'a') != 0) |
f2faf549 RS |
1224 | { |
1225 | if (arg == 0) | |
1226 | { | |
1227 | if (i + 1 == argc) | |
92bd6bdc | 1228 | { |
1f978f5f | 1229 | error ("missing argument to `%s' option", |
92bd6bdc RK |
1230 | option_map[j].name); |
1231 | break; | |
1232 | } | |
1233 | ||
f2faf549 RS |
1234 | arg = argv[++i]; |
1235 | } | |
1236 | } | |
9473c522 | 1237 | else if (strchr (arginfo, '*') != 0) |
fff26804 | 1238 | ; |
9473c522 | 1239 | else if (strchr (arginfo, 'o') == 0) |
f2faf549 RS |
1240 | { |
1241 | if (arg != 0) | |
1f978f5f | 1242 | error ("extraneous argument to `%s' option", |
f2faf549 RS |
1243 | option_map[j].name); |
1244 | arg = 0; | |
1245 | } | |
1246 | ||
1247 | /* Store the translation as one argv elt or as two. */ | |
9473c522 | 1248 | if (arg != 0 && strchr (arginfo, 'j') != 0) |
6aa62cff | 1249 | newv[newindex++] = concat (option_map[j].equivalent, arg, |
d4f2852f | 1250 | NULL); |
f2faf549 RS |
1251 | else if (arg != 0) |
1252 | { | |
1253 | newv[newindex++] = option_map[j].equivalent; | |
1254 | newv[newindex++] = arg; | |
1255 | } | |
1256 | else | |
1257 | newv[newindex++] = option_map[j].equivalent; | |
1258 | ||
1259 | break; | |
1260 | } | |
1261 | } | |
1262 | i++; | |
1263 | } | |
92bd6bdc | 1264 | |
f2faf549 RS |
1265 | /* Handle old-fashioned options--just copy them through, |
1266 | with their arguments. */ | |
1267 | else if (argv[i][0] == '-') | |
1268 | { | |
878f32c3 | 1269 | const char *p = argv[i] + 1; |
f2faf549 RS |
1270 | int c = *p; |
1271 | int nskip = 1; | |
1272 | ||
1273 | if (SWITCH_TAKES_ARG (c) > (p[1] != 0)) | |
1274 | nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0); | |
1275 | else if (WORD_SWITCH_TAKES_ARG (p)) | |
1276 | nskip += WORD_SWITCH_TAKES_ARG (p); | |
63826d5b | 1277 | else if ((c == 'B' || c == 'b' || c == 'x') |
fb99c21c JW |
1278 | && p[1] == 0) |
1279 | nskip += 1; | |
1280 | else if (! strcmp (p, "Xlinker")) | |
1281 | nskip += 1; | |
4977bab6 ZW |
1282 | else if (! strcmp (p, "Xpreprocessor")) |
1283 | nskip += 1; | |
1284 | else if (! strcmp (p, "Xassembler")) | |
1285 | nskip += 1; | |
f2faf549 | 1286 | |
e184d694 JW |
1287 | /* Watch out for an option at the end of the command line that |
1288 | is missing arguments, and avoid skipping past the end of the | |
1289 | command line. */ | |
1290 | if (nskip + i > argc) | |
1291 | nskip = argc - i; | |
1292 | ||
f2faf549 RS |
1293 | while (nskip > 0) |
1294 | { | |
1295 | newv[newindex++] = argv[i++]; | |
1296 | nskip--; | |
1297 | } | |
1298 | } | |
1299 | else | |
1300 | /* Ordinary operands, or +e options. */ | |
1301 | newv[newindex++] = argv[i++]; | |
1302 | } | |
1303 | ||
1304 | newv[newindex] = 0; | |
1305 | ||
1306 | *argvp = newv; | |
1307 | *argcp = newindex; | |
1308 | } | |
1309 | \f | |
ed1f651b | 1310 | static char * |
1d088dee | 1311 | skip_whitespace (char *p) |
ed1f651b RS |
1312 | { |
1313 | while (1) | |
1314 | { | |
1315 | /* A fully-blank line is a delimiter in the SPEC file and shouldn't | |
1316 | be considered whitespace. */ | |
1317 | if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n') | |
1318 | return p + 1; | |
1319 | else if (*p == '\n' || *p == ' ' || *p == '\t') | |
1320 | p++; | |
1321 | else if (*p == '#') | |
1322 | { | |
d25a45d4 KH |
1323 | while (*p != '\n') |
1324 | p++; | |
ed1f651b RS |
1325 | p++; |
1326 | } | |
1327 | else | |
1328 | break; | |
1329 | } | |
1330 | ||
1331 | return p; | |
1332 | } | |
2296d164 RK |
1333 | /* Structures to keep track of prefixes to try when looking for files. */ |
1334 | ||
1335 | struct prefix_list | |
1336 | { | |
8060c8ee | 1337 | const char *prefix; /* String to prepend to the path. */ |
2296d164 RK |
1338 | struct prefix_list *next; /* Next in linked list. */ |
1339 | int require_machine_suffix; /* Don't use without machine_suffix. */ | |
1340 | /* 2 means try both machine_suffix and just_machine_suffix. */ | |
1341 | int *used_flag_ptr; /* 1 if a file was found with this prefix. */ | |
5bbcd587 JJ |
1342 | int priority; /* Sort key - priority within list. */ |
1343 | int os_multilib; /* 1 if OS multilib scheme should be used, | |
1344 | 0 for GCC multilib scheme. */ | |
2296d164 RK |
1345 | }; |
1346 | ||
1347 | struct path_prefix | |
1348 | { | |
1349 | struct prefix_list *plist; /* List of prefixes to try */ | |
1350 | int max_len; /* Max length of a prefix in PLIST */ | |
1351 | const char *name; /* Name of this list (used in config stuff) */ | |
1352 | }; | |
1353 | ||
1354 | /* List of prefixes to try when looking for executables. */ | |
1355 | ||
1356 | static struct path_prefix exec_prefixes = { 0, 0, "exec" }; | |
1357 | ||
1358 | /* List of prefixes to try when looking for startup (crt0) files. */ | |
1359 | ||
1360 | static struct path_prefix startfile_prefixes = { 0, 0, "startfile" }; | |
1361 | ||
1362 | /* List of prefixes to try when looking for include files. */ | |
1363 | ||
1364 | static struct path_prefix include_prefixes = { 0, 0, "include" }; | |
1365 | ||
1366 | /* Suffix to attach to directories searched for commands. | |
1367 | This looks like `MACHINE/VERSION/'. */ | |
1368 | ||
1369 | static const char *machine_suffix = 0; | |
1370 | ||
1371 | /* Suffix to attach to directories searched for commands. | |
1372 | This is just `MACHINE/'. */ | |
1373 | ||
1374 | static const char *just_machine_suffix = 0; | |
1375 | ||
1376 | /* Adjusted value of GCC_EXEC_PREFIX envvar. */ | |
1377 | ||
1378 | static const char *gcc_exec_prefix; | |
1379 | ||
a8ee6e2d GK |
1380 | /* Adjusted value of standard_libexec_prefix. */ |
1381 | ||
1382 | static const char *gcc_libexec_prefix; | |
1383 | ||
2296d164 RK |
1384 | /* Default prefixes to attach to command names. */ |
1385 | ||
1386 | #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */ | |
1387 | #undef MD_EXEC_PREFIX | |
1388 | #undef MD_STARTFILE_PREFIX | |
1389 | #undef MD_STARTFILE_PREFIX_1 | |
1390 | #endif | |
1391 | ||
1392 | /* If no prefixes defined, use the null string, which will disable them. */ | |
1393 | #ifndef MD_EXEC_PREFIX | |
1394 | #define MD_EXEC_PREFIX "" | |
1395 | #endif | |
1396 | #ifndef MD_STARTFILE_PREFIX | |
1397 | #define MD_STARTFILE_PREFIX "" | |
1398 | #endif | |
1399 | #ifndef MD_STARTFILE_PREFIX_1 | |
1400 | #define MD_STARTFILE_PREFIX_1 "" | |
1401 | #endif | |
1402 | ||
27c38fbe | 1403 | static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX; |
a8ee6e2d GK |
1404 | static const char *const standard_exec_prefix_1 = "/usr/libexec/gcc/"; |
1405 | static const char *const standard_exec_prefix_2 = "/usr/lib/gcc/"; | |
2296d164 RK |
1406 | static const char *md_exec_prefix = MD_EXEC_PREFIX; |
1407 | ||
1408 | static const char *md_startfile_prefix = MD_STARTFILE_PREFIX; | |
1409 | static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1; | |
27c38fbe KG |
1410 | static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX; |
1411 | static const char *const standard_startfile_prefix_1 = "/lib/"; | |
1412 | static const char *const standard_startfile_prefix_2 = "/usr/lib/"; | |
2296d164 | 1413 | |
27c38fbe | 1414 | static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX; |
2296d164 RK |
1415 | static const char *tooldir_prefix; |
1416 | ||
27c38fbe | 1417 | static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX; |
2296d164 | 1418 | |
a8ee6e2d GK |
1419 | static const char *standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX; |
1420 | ||
2296d164 RK |
1421 | /* Subdirectory to use for locating libraries. Set by |
1422 | set_multilib_dir based on the compilation options. */ | |
1423 | ||
1424 | static const char *multilib_dir; | |
5bbcd587 JJ |
1425 | |
1426 | /* Subdirectory to use for locating libraries in OS conventions. Set by | |
1427 | set_multilib_dir based on the compilation options. */ | |
1428 | ||
1429 | static const char *multilib_os_dir; | |
ed1f651b | 1430 | \f |
0f41302f | 1431 | /* Structure to keep track of the specs that have been defined so far. |
4089dfab JL |
1432 | These are accessed using %(specname) or %[specname] in a compiler |
1433 | or link spec. */ | |
ed1f651b RS |
1434 | |
1435 | struct spec_list | |
1436 | { | |
79aff5ac MM |
1437 | /* The following 2 fields must be first */ |
1438 | /* to allow EXTRA_SPECS to be initialized */ | |
3b304f5b ZW |
1439 | const char *name; /* name of the spec. */ |
1440 | const char *ptr; /* available ptr if no static pointer */ | |
79aff5ac MM |
1441 | |
1442 | /* The following fields are not initialized */ | |
1443 | /* by EXTRA_SPECS */ | |
3b304f5b | 1444 | const char **ptr_spec; /* pointer to the spec itself. */ |
79aff5ac MM |
1445 | struct spec_list *next; /* Next spec in linked list. */ |
1446 | int name_len; /* length of the name */ | |
1447 | int alloc_p; /* whether string was allocated */ | |
ed1f651b RS |
1448 | }; |
1449 | ||
79aff5ac | 1450 | #define INIT_STATIC_SPEC(NAME,PTR) \ |
6496a589 | 1451 | { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 } |
79aff5ac | 1452 | |
3ac63d94 NC |
1453 | /* List of statically defined specs. */ |
1454 | static struct spec_list static_specs[] = | |
1455 | { | |
79aff5ac | 1456 | INIT_STATIC_SPEC ("asm", &asm_spec), |
5f0e9ea2 | 1457 | INIT_STATIC_SPEC ("asm_debug", &asm_debug), |
79aff5ac | 1458 | INIT_STATIC_SPEC ("asm_final", &asm_final_spec), |
ea414c97 | 1459 | INIT_STATIC_SPEC ("asm_options", &asm_options), |
5a8e2650 | 1460 | INIT_STATIC_SPEC ("invoke_as", &invoke_as), |
79aff5ac | 1461 | INIT_STATIC_SPEC ("cpp", &cpp_spec), |
ea414c97 | 1462 | INIT_STATIC_SPEC ("cpp_options", &cpp_options), |
8b968bd1 | 1463 | INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options), |
ffdeea47 | 1464 | INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options), |
ea414c97 | 1465 | INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp), |
79aff5ac | 1466 | INIT_STATIC_SPEC ("cc1", &cc1_spec), |
ea414c97 | 1467 | INIT_STATIC_SPEC ("cc1_options", &cc1_options), |
79aff5ac | 1468 | INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec), |
bbd7687d | 1469 | INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec), |
79aff5ac MM |
1470 | INIT_STATIC_SPEC ("endfile", &endfile_spec), |
1471 | INIT_STATIC_SPEC ("link", &link_spec), | |
1472 | INIT_STATIC_SPEC ("lib", &lib_spec), | |
1473 | INIT_STATIC_SPEC ("libgcc", &libgcc_spec), | |
1474 | INIT_STATIC_SPEC ("startfile", &startfile_spec), | |
1475 | INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces), | |
79aff5ac MM |
1476 | INIT_STATIC_SPEC ("cross_compile", &cross_compile), |
1477 | INIT_STATIC_SPEC ("version", &compiler_version), | |
1478 | INIT_STATIC_SPEC ("multilib", &multilib_select), | |
1479 | INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults), | |
1480 | INIT_STATIC_SPEC ("multilib_extra", &multilib_extra), | |
1481 | INIT_STATIC_SPEC ("multilib_matches", &multilib_matches), | |
0a8d6618 | 1482 | INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions), |
5bbcd587 | 1483 | INIT_STATIC_SPEC ("multilib_options", &multilib_options), |
10da1131 | 1484 | INIT_STATIC_SPEC ("linker", &linker_name_spec), |
ea414c97 | 1485 | INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec), |
2296d164 RK |
1486 | INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix), |
1487 | INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix), | |
1488 | INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1), | |
343f59d9 | 1489 | INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec), |
e7f13528 GP |
1490 | INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec), |
1491 | INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec), | |
79aff5ac MM |
1492 | }; |
1493 | ||
1494 | #ifdef EXTRA_SPECS /* additional specs needed */ | |
829245be | 1495 | /* Structure to keep track of just the first two args of a spec_list. |
3ac63d94 | 1496 | That is all that the EXTRA_SPECS macro gives us. */ |
829245be KG |
1497 | struct spec_list_1 |
1498 | { | |
8b60264b KG |
1499 | const char *const name; |
1500 | const char *const ptr; | |
829245be KG |
1501 | }; |
1502 | ||
8b60264b | 1503 | static const struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS }; |
d25a45d4 | 1504 | static struct spec_list *extra_specs = (struct spec_list *) 0; |
79aff5ac MM |
1505 | #endif |
1506 | ||
1507 | /* List of dynamically allocates specs that have been defined so far. */ | |
1508 | ||
9218435e | 1509 | static struct spec_list *specs = (struct spec_list *) 0; |
79aff5ac | 1510 | \f |
f3226a90 JT |
1511 | /* List of static spec functions. */ |
1512 | ||
1513 | static const struct spec_function static_spec_functions[] = | |
1514 | { | |
1515 | { "if-exists", if_exists_spec_function }, | |
152a5a9c | 1516 | { "if-exists-else", if_exists_else_spec_function }, |
f3226a90 JT |
1517 | { 0, 0 } |
1518 | }; | |
1519 | ||
1520 | static int processing_spec_function; | |
1521 | \f | |
049f6ec9 MM |
1522 | /* Add appropriate libgcc specs to OBSTACK, taking into account |
1523 | various permutations of -shared-libgcc, -shared, and such. */ | |
1524 | ||
6894579f | 1525 | #ifdef ENABLE_SHARED_LIBGCC |
049f6ec9 | 1526 | static void |
1d088dee AJ |
1527 | init_gcc_specs (struct obstack *obstack, const char *shared_name, |
1528 | const char *static_name, const char *eh_name) | |
049f6ec9 | 1529 | { |
5c181756 AO |
1530 | char *buf; |
1531 | ||
42d579d8 AO |
1532 | buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name, |
1533 | "}%{!static:%{!static-libgcc:", | |
1534 | "%{!shared:%{!shared-libgcc:", static_name, " ", | |
5c181756 | 1535 | eh_name, "}%{shared-libgcc:", shared_name, " ", |
42d579d8 | 1536 | static_name, "}}%{shared:", |
275b60d6 | 1537 | #ifdef LINK_EH_SPEC |
5c181756 AO |
1538 | "%{shared-libgcc:", shared_name, |
1539 | "}%{!shared-libgcc:", static_name, "}", | |
275b60d6 | 1540 | #else |
5c181756 | 1541 | shared_name, |
275b60d6 | 1542 | #endif |
ba2b7435 | 1543 | "}}}", NULL); |
5c181756 AO |
1544 | |
1545 | obstack_grow (obstack, buf, strlen (buf)); | |
1546 | free (buf); | |
049f6ec9 | 1547 | } |
6894579f | 1548 | #endif /* ENABLE_SHARED_LIBGCC */ |
049f6ec9 | 1549 | |
79aff5ac MM |
1550 | /* Initialize the specs lookup routines. */ |
1551 | ||
1552 | static void | |
7e51717c | 1553 | init_spec (void) |
79aff5ac | 1554 | { |
9218435e KH |
1555 | struct spec_list *next = (struct spec_list *) 0; |
1556 | struct spec_list *sl = (struct spec_list *) 0; | |
79aff5ac MM |
1557 | int i; |
1558 | ||
1559 | if (specs) | |
3ac63d94 | 1560 | return; /* Already initialized. */ |
79aff5ac | 1561 | |
20df0482 | 1562 | if (verbose_flag) |
b0287a90 | 1563 | notice ("Using built-in specs.\n"); |
20df0482 | 1564 | |
79aff5ac | 1565 | #ifdef EXTRA_SPECS |
703ad42b KG |
1566 | extra_specs = xcalloc (sizeof (struct spec_list), |
1567 | ARRAY_SIZE (extra_specs_1)); | |
9218435e | 1568 | |
b6a1cbae | 1569 | for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--) |
03fc1620 JW |
1570 | { |
1571 | sl = &extra_specs[i]; | |
829245be KG |
1572 | sl->name = extra_specs_1[i].name; |
1573 | sl->ptr = extra_specs_1[i].ptr; | |
03fc1620 JW |
1574 | sl->next = next; |
1575 | sl->name_len = strlen (sl->name); | |
1576 | sl->ptr_spec = &sl->ptr; | |
1577 | next = sl; | |
1578 | } | |
79aff5ac MM |
1579 | #endif |
1580 | ||
81bca2f5 RO |
1581 | /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes |
1582 | on ?: in file-scope variable initializations. */ | |
1583 | asm_debug = ASM_DEBUG_SPEC; | |
1584 | ||
b6a1cbae | 1585 | for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--) |
79aff5ac MM |
1586 | { |
1587 | sl = &static_specs[i]; | |
1588 | sl->next = next; | |
1589 | next = sl; | |
1590 | } | |
1591 | ||
9db0819e RH |
1592 | #ifdef ENABLE_SHARED_LIBGCC |
1593 | /* ??? If neither -shared-libgcc nor --static-libgcc was | |
1594 | seen, then we should be making an educated guess. Some proposed | |
1595 | heuristics for ELF include: | |
1596 | ||
1597 | (1) If "-Wl,--export-dynamic", then it's a fair bet that the | |
1598 | program will be doing dynamic loading, which will likely | |
1599 | need the shared libgcc. | |
1600 | ||
1601 | (2) If "-ldl", then it's also a fair bet that we're doing | |
1602 | dynamic loading. | |
1603 | ||
1604 | (3) For each ET_DYN we're linking against (either through -lfoo | |
1605 | or /some/path/foo.so), check to see whether it or one of | |
ff7cc307 | 1606 | its dependencies depends on a shared libgcc. |
9db0819e RH |
1607 | |
1608 | (4) If "-shared" | |
1609 | ||
1610 | If the runtime is fixed to look for program headers instead | |
1611 | of calling __register_frame_info at all, for each object, | |
1612 | use the shared libgcc if any EH symbol referenced. | |
1613 | ||
1614 | If crtstuff is fixed to not invoke __register_frame_info | |
1615 | automatically, for each object, use the shared libgcc if | |
1616 | any non-empty unwind section found. | |
1617 | ||
1618 | Doing any of this probably requires invoking an external program to | |
1619 | do the actual object file scanning. */ | |
1620 | { | |
1621 | const char *p = libgcc_spec; | |
1622 | int in_sep = 1; | |
589005ff | 1623 | |
16757495 | 1624 | /* Transform the extant libgcc_spec into one that uses the shared libgcc |
9db0819e RH |
1625 | when given the proper command line arguments. */ |
1626 | while (*p) | |
1627 | { | |
589005ff | 1628 | if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0) |
9db0819e | 1629 | { |
049f6ec9 | 1630 | init_gcc_specs (&obstack, |
9db0819e | 1631 | #ifdef NO_SHARED_LIBGCC_MULTILIB |
049f6ec9 | 1632 | "-lgcc_s" |
9db0819e | 1633 | #else |
049f6ec9 | 1634 | "-lgcc_s%M" |
4977bab6 | 1635 | #endif |
348d71c7 JW |
1636 | , |
1637 | "-lgcc", | |
1638 | "-lgcc_eh" | |
4977bab6 ZW |
1639 | #ifdef USE_LIBUNWIND_EXCEPTIONS |
1640 | " -lunwind" | |
9db0819e | 1641 | #endif |
348d71c7 JW |
1642 | ); |
1643 | ||
ba2b7435 | 1644 | p += 5; |
9db0819e RH |
1645 | in_sep = 0; |
1646 | } | |
ba2b7435 | 1647 | else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0) |
9db0819e RH |
1648 | { |
1649 | /* Ug. We don't know shared library extensions. Hope that | |
1650 | systems that use this form don't do shared libraries. */ | |
049f6ec9 | 1651 | init_gcc_specs (&obstack, |
9db0819e | 1652 | #ifdef NO_SHARED_LIBGCC_MULTILIB |
049f6ec9 | 1653 | "-lgcc_s" |
9db0819e | 1654 | #else |
049f6ec9 | 1655 | "-lgcc_s%M" |
9db0819e | 1656 | #endif |
049f6ec9 | 1657 | , |
275b60d6 JJ |
1658 | "libgcc.a%s", |
1659 | "libgcc_eh.a%s"); | |
ba2b7435 | 1660 | p += 10; |
9db0819e RH |
1661 | in_sep = 0; |
1662 | } | |
1663 | else | |
1664 | { | |
1665 | obstack_1grow (&obstack, *p); | |
1666 | in_sep = (*p == ' '); | |
1667 | p += 1; | |
1668 | } | |
1669 | } | |
1670 | ||
1671 | obstack_1grow (&obstack, '\0'); | |
1672 | libgcc_spec = obstack_finish (&obstack); | |
1673 | } | |
1674 | #endif | |
c64688ae RH |
1675 | #ifdef USE_AS_TRADITIONAL_FORMAT |
1676 | /* Prepend "--traditional-format" to whatever asm_spec we had before. */ | |
1677 | { | |
8b60264b | 1678 | static const char tf[] = "--traditional-format "; |
c64688ae RH |
1679 | obstack_grow (&obstack, tf, sizeof(tf) - 1); |
1680 | obstack_grow0 (&obstack, asm_spec, strlen (asm_spec)); | |
1681 | asm_spec = obstack_finish (&obstack); | |
1682 | } | |
1683 | #endif | |
275b60d6 JJ |
1684 | #ifdef LINK_EH_SPEC |
1685 | /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */ | |
1686 | obstack_grow (&obstack, LINK_EH_SPEC, sizeof(LINK_EH_SPEC) - 1); | |
1687 | obstack_grow0 (&obstack, link_spec, strlen (link_spec)); | |
1688 | link_spec = obstack_finish (&obstack); | |
1689 | #endif | |
9db0819e | 1690 | |
79aff5ac MM |
1691 | specs = sl; |
1692 | } | |
ed1f651b RS |
1693 | \f |
1694 | /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is | |
1695 | removed; If the spec starts with a + then SPEC is added to the end of the | |
0f41302f | 1696 | current spec. */ |
ed1f651b RS |
1697 | |
1698 | static void | |
1d088dee | 1699 | set_spec (const char *name, const char *spec) |
ed1f651b RS |
1700 | { |
1701 | struct spec_list *sl; | |
3b304f5b | 1702 | const char *old_spec; |
79aff5ac MM |
1703 | int name_len = strlen (name); |
1704 | int i; | |
1705 | ||
3ac63d94 | 1706 | /* If this is the first call, initialize the statically allocated specs. */ |
20df0482 MM |
1707 | if (!specs) |
1708 | { | |
9218435e | 1709 | struct spec_list *next = (struct spec_list *) 0; |
b6a1cbae | 1710 | for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--) |
20df0482 MM |
1711 | { |
1712 | sl = &static_specs[i]; | |
1713 | sl->next = next; | |
1714 | next = sl; | |
1715 | } | |
1716 | specs = sl; | |
1717 | } | |
1718 | ||
3ac63d94 | 1719 | /* See if the spec already exists. */ |
ed1f651b | 1720 | for (sl = specs; sl; sl = sl->next) |
79aff5ac | 1721 | if (name_len == sl->name_len && !strcmp (sl->name, name)) |
ed1f651b RS |
1722 | break; |
1723 | ||
1724 | if (!sl) | |
1725 | { | |
3ac63d94 | 1726 | /* Not found - make it. */ |
703ad42b | 1727 | sl = xmalloc (sizeof (struct spec_list)); |
ad85216e | 1728 | sl->name = xstrdup (name); |
79aff5ac MM |
1729 | sl->name_len = name_len; |
1730 | sl->ptr_spec = &sl->ptr; | |
1731 | sl->alloc_p = 0; | |
1732 | *(sl->ptr_spec) = ""; | |
ed1f651b RS |
1733 | sl->next = specs; |
1734 | specs = sl; | |
1735 | } | |
1736 | ||
79aff5ac | 1737 | old_spec = *(sl->ptr_spec); |
e51712db | 1738 | *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1])) |
d4f2852f | 1739 | ? concat (old_spec, spec + 1, NULL) |
ad85216e | 1740 | : xstrdup (spec)); |
841faeed | 1741 | |
20df0482 MM |
1742 | #ifdef DEBUG_SPECS |
1743 | if (verbose_flag) | |
ab87f8c8 | 1744 | notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec)); |
20df0482 MM |
1745 | #endif |
1746 | ||
3ac63d94 | 1747 | /* Free the old spec. */ |
79aff5ac | 1748 | if (old_spec && sl->alloc_p) |
fad205ff | 1749 | free ((void *) old_spec); |
79aff5ac MM |
1750 | |
1751 | sl->alloc_p = 1; | |
ed1f651b RS |
1752 | } |
1753 | \f | |
1754 | /* Accumulate a command (program name and args), and run it. */ | |
1755 | ||
1756 | /* Vector of pointers to arguments in the current line of specifications. */ | |
1757 | ||
fbd40359 | 1758 | static const char **argbuf; |
ed1f651b RS |
1759 | |
1760 | /* Number of elements allocated in argbuf. */ | |
1761 | ||
1762 | static int argbuf_length; | |
1763 | ||
1764 | /* Number of elements in argbuf currently in use (containing args). */ | |
1765 | ||
1766 | static int argbuf_index; | |
1767 | ||
49009afd JL |
1768 | /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated |
1769 | temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for | |
1770 | it here. */ | |
fb266030 TW |
1771 | |
1772 | static struct temp_name { | |
878f32c3 | 1773 | const char *suffix; /* suffix associated with the code. */ |
fb266030 TW |
1774 | int length; /* strlen (suffix). */ |
1775 | int unique; /* Indicates whether %g or %u/%U was used. */ | |
878f32c3 | 1776 | const char *filename; /* associated filename. */ |
fb266030 TW |
1777 | int filename_length; /* strlen (filename). */ |
1778 | struct temp_name *next; | |
1779 | } *temp_names; | |
39d45901 | 1780 | |
ed1f651b RS |
1781 | /* Number of commands executed so far. */ |
1782 | ||
1783 | static int execution_count; | |
1784 | ||
3b9b4d3f RS |
1785 | /* Number of commands that exited with a signal. */ |
1786 | ||
1787 | static int signal_count; | |
1788 | ||
ed1f651b RS |
1789 | /* Name with which this program was invoked. */ |
1790 | ||
878f32c3 | 1791 | static const char *programname; |
ed1f651b | 1792 | \f |
f3226a90 JT |
1793 | /* Allocate the argument vector. */ |
1794 | ||
1795 | static void | |
7e51717c | 1796 | alloc_args (void) |
f3226a90 JT |
1797 | { |
1798 | argbuf_length = 10; | |
703ad42b | 1799 | argbuf = xmalloc (argbuf_length * sizeof (const char *)); |
f3226a90 JT |
1800 | } |
1801 | ||
ed1f651b RS |
1802 | /* Clear out the vector of arguments (after a command is executed). */ |
1803 | ||
1804 | static void | |
1d088dee | 1805 | clear_args (void) |
ed1f651b RS |
1806 | { |
1807 | argbuf_index = 0; | |
1808 | } | |
1809 | ||
1810 | /* Add one argument to the vector at the end. | |
1811 | This is done when a space is seen or at the end of the line. | |
1812 | If DELETE_ALWAYS is nonzero, the arg is a filename | |
1813 | and the file should be deleted eventually. | |
1814 | If DELETE_FAILURE is nonzero, the arg is a filename | |
1815 | and the file should be deleted if this compilation fails. */ | |
1816 | ||
1817 | static void | |
1d088dee | 1818 | store_arg (const char *arg, int delete_always, int delete_failure) |
ed1f651b RS |
1819 | { |
1820 | if (argbuf_index + 1 == argbuf_length) | |
703ad42b | 1821 | argbuf = xrealloc (argbuf, (argbuf_length *= 2) * sizeof (const char *)); |
ed1f651b RS |
1822 | |
1823 | argbuf[argbuf_index++] = arg; | |
1824 | argbuf[argbuf_index] = 0; | |
1825 | ||
1826 | if (delete_always || delete_failure) | |
1827 | record_temp_file (arg, delete_always, delete_failure); | |
1828 | } | |
1829 | \f | |
ff7cc307 | 1830 | /* Load specs from a file name named FILENAME, replacing occurrences of |
9218435e | 1831 | various different types of line-endings, \r\n, \n\r and just \r, with |
b633b6c0 | 1832 | a single \n. */ |
20df0482 | 1833 | |
d25a45d4 | 1834 | static char * |
1d088dee | 1835 | load_specs (const char *filename) |
20df0482 MM |
1836 | { |
1837 | int desc; | |
1838 | int readlen; | |
1839 | struct stat statbuf; | |
1840 | char *buffer; | |
b633b6c0 MK |
1841 | char *buffer_p; |
1842 | char *specs; | |
1843 | char *specs_p; | |
20df0482 MM |
1844 | |
1845 | if (verbose_flag) | |
ab87f8c8 | 1846 | notice ("Reading specs from %s\n", filename); |
20df0482 MM |
1847 | |
1848 | /* Open and stat the file. */ | |
1849 | desc = open (filename, O_RDONLY, 0); | |
1850 | if (desc < 0) | |
1851 | pfatal_with_name (filename); | |
1852 | if (stat (filename, &statbuf) < 0) | |
1853 | pfatal_with_name (filename); | |
1854 | ||
1855 | /* Read contents of file into BUFFER. */ | |
1856 | buffer = xmalloc ((unsigned) statbuf.st_size + 1); | |
1857 | readlen = read (desc, buffer, (unsigned) statbuf.st_size); | |
1858 | if (readlen < 0) | |
1859 | pfatal_with_name (filename); | |
1860 | buffer[readlen] = 0; | |
1861 | close (desc); | |
1862 | ||
b633b6c0 MK |
1863 | specs = xmalloc (readlen + 1); |
1864 | specs_p = specs; | |
1865 | for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++) | |
1866 | { | |
1867 | int skip = 0; | |
1868 | char c = *buffer_p; | |
1869 | if (c == '\r') | |
d25a45d4 KH |
1870 | { |
1871 | if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */ | |
b633b6c0 | 1872 | skip = 1; |
d25a45d4 | 1873 | else if (*(buffer_p + 1) == '\n') /* \r\n */ |
b633b6c0 MK |
1874 | skip = 1; |
1875 | else /* \r */ | |
1876 | c = '\n'; | |
1877 | } | |
1878 | if (! skip) | |
1879 | *specs_p++ = c; | |
1880 | } | |
1881 | *specs_p = '\0'; | |
1882 | ||
1883 | free (buffer); | |
1884 | return (specs); | |
1885 | } | |
1886 | ||
1887 | /* Read compilation specs from a file named FILENAME, | |
1888 | replacing the default ones. | |
1889 | ||
1890 | A suffix which starts with `*' is a definition for | |
1891 | one of the machine-specific sub-specs. The "suffix" should be | |
0fef3fd0 | 1892 | *asm, *cc1, *cpp, *link, *startfile, etc. |
b633b6c0 MK |
1893 | The corresponding spec is stored in asm_spec, etc., |
1894 | rather than in the `compilers' vector. | |
1895 | ||
1896 | Anything invalid in the file is a fatal error. */ | |
1897 | ||
1898 | static void | |
1d088dee | 1899 | read_specs (const char *filename, int main_p) |
b633b6c0 MK |
1900 | { |
1901 | char *buffer; | |
b3694847 | 1902 | char *p; |
b633b6c0 MK |
1903 | |
1904 | buffer = load_specs (filename); | |
1905 | ||
20df0482 MM |
1906 | /* Scan BUFFER for specs, putting them in the vector. */ |
1907 | p = buffer; | |
1908 | while (1) | |
1909 | { | |
1910 | char *suffix; | |
1911 | char *spec; | |
1912 | char *in, *out, *p1, *p2, *p3; | |
1913 | ||
1914 | /* Advance P in BUFFER to the next nonblank nocomment line. */ | |
1915 | p = skip_whitespace (p); | |
1916 | if (*p == 0) | |
1917 | break; | |
1918 | ||
1919 | /* Is this a special command that starts with '%'? */ | |
1920 | /* Don't allow this for the main specs file, since it would | |
1921 | encourage people to overwrite it. */ | |
1922 | if (*p == '%' && !main_p) | |
1923 | { | |
1924 | p1 = p; | |
e9a25f70 JL |
1925 | while (*p && *p != '\n') |
1926 | p++; | |
1927 | ||
d25a45d4 KH |
1928 | /* Skip '\n'. */ |
1929 | p++; | |
20df0482 | 1930 | |
d25a45d4 | 1931 | if (!strncmp (p1, "%include", sizeof ("%include") - 1) |
e9a25f70 JL |
1932 | && (p1[sizeof "%include" - 1] == ' ' |
1933 | || p1[sizeof "%include" - 1] == '\t')) | |
20df0482 MM |
1934 | { |
1935 | char *new_filename; | |
1936 | ||
1937 | p1 += sizeof ("%include"); | |
e9a25f70 JL |
1938 | while (*p1 == ' ' || *p1 == '\t') |
1939 | p1++; | |
20df0482 MM |
1940 | |
1941 | if (*p1++ != '<' || p[-2] != '>') | |
22d9f2cf KG |
1942 | fatal ("specs %%include syntax malformed after %ld characters", |
1943 | (long) (p1 - buffer + 1)); | |
20df0482 MM |
1944 | |
1945 | p[-2] = '\0'; | |
5bbcd587 | 1946 | new_filename = find_a_file (&startfile_prefixes, p1, R_OK, 0); |
20df0482 MM |
1947 | read_specs (new_filename ? new_filename : p1, FALSE); |
1948 | continue; | |
1949 | } | |
e9a25f70 JL |
1950 | else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1) |
1951 | && (p1[sizeof "%include_noerr" - 1] == ' ' | |
1952 | || p1[sizeof "%include_noerr" - 1] == '\t')) | |
20df0482 MM |
1953 | { |
1954 | char *new_filename; | |
1955 | ||
e9a25f70 | 1956 | p1 += sizeof "%include_noerr"; |
d25a45d4 KH |
1957 | while (*p1 == ' ' || *p1 == '\t') |
1958 | p1++; | |
20df0482 MM |
1959 | |
1960 | if (*p1++ != '<' || p[-2] != '>') | |
22d9f2cf KG |
1961 | fatal ("specs %%include syntax malformed after %ld characters", |
1962 | (long) (p1 - buffer + 1)); | |
20df0482 MM |
1963 | |
1964 | p[-2] = '\0'; | |
5bbcd587 | 1965 | new_filename = find_a_file (&startfile_prefixes, p1, R_OK, 0); |
20df0482 MM |
1966 | if (new_filename) |
1967 | read_specs (new_filename, FALSE); | |
1968 | else if (verbose_flag) | |
c725bd79 | 1969 | notice ("could not find specs file %s\n", p1); |
20df0482 MM |
1970 | continue; |
1971 | } | |
e9a25f70 JL |
1972 | else if (!strncmp (p1, "%rename", sizeof "%rename" - 1) |
1973 | && (p1[sizeof "%rename" - 1] == ' ' | |
1974 | || p1[sizeof "%rename" - 1] == '\t')) | |
20df0482 MM |
1975 | { |
1976 | int name_len; | |
1977 | struct spec_list *sl; | |
169ce44d | 1978 | struct spec_list *newsl; |
20df0482 | 1979 | |
169ce44d | 1980 | /* Get original name. */ |
e9a25f70 JL |
1981 | p1 += sizeof "%rename"; |
1982 | while (*p1 == ' ' || *p1 == '\t') | |
1983 | p1++; | |
1984 | ||
9218435e | 1985 | if (! ISALPHA ((unsigned char) *p1)) |
22d9f2cf KG |
1986 | fatal ("specs %%rename syntax malformed after %ld characters", |
1987 | (long) (p1 - buffer)); | |
20df0482 MM |
1988 | |
1989 | p2 = p1; | |
9218435e | 1990 | while (*p2 && !ISSPACE ((unsigned char) *p2)) |
e9a25f70 JL |
1991 | p2++; |
1992 | ||
20df0482 | 1993 | if (*p2 != ' ' && *p2 != '\t') |
22d9f2cf KG |
1994 | fatal ("specs %%rename syntax malformed after %ld characters", |
1995 | (long) (p2 - buffer)); | |
20df0482 MM |
1996 | |
1997 | name_len = p2 - p1; | |
1998 | *p2++ = '\0'; | |
e9a25f70 JL |
1999 | while (*p2 == ' ' || *p2 == '\t') |
2000 | p2++; | |
2001 | ||
9218435e | 2002 | if (! ISALPHA ((unsigned char) *p2)) |
22d9f2cf KG |
2003 | fatal ("specs %%rename syntax malformed after %ld characters", |
2004 | (long) (p2 - buffer)); | |
20df0482 | 2005 | |
d25a45d4 | 2006 | /* Get new spec name. */ |
20df0482 | 2007 | p3 = p2; |
9218435e | 2008 | while (*p3 && !ISSPACE ((unsigned char) *p3)) |
e9a25f70 JL |
2009 | p3++; |
2010 | ||
d25a45d4 | 2011 | if (p3 != p - 1) |
22d9f2cf KG |
2012 | fatal ("specs %%rename syntax malformed after %ld characters", |
2013 | (long) (p3 - buffer)); | |
20df0482 MM |
2014 | *p3 = '\0'; |
2015 | ||
2016 | for (sl = specs; sl; sl = sl->next) | |
2017 | if (name_len == sl->name_len && !strcmp (sl->name, p1)) | |
2018 | break; | |
2019 | ||
2020 | if (!sl) | |
2021 | fatal ("specs %s spec was not found to be renamed", p1); | |
2022 | ||
e9a25f70 | 2023 | if (strcmp (p1, p2) == 0) |
20df0482 MM |
2024 | continue; |
2025 | ||
169ce44d NC |
2026 | for (newsl = specs; newsl; newsl = newsl->next) |
2027 | if (strcmp (newsl->name, p2) == 0) | |
2028 | fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'", | |
2029 | filename, p1, p2); | |
2030 | ||
20df0482 MM |
2031 | if (verbose_flag) |
2032 | { | |
ab87f8c8 | 2033 | notice ("rename spec %s to %s\n", p1, p2); |
20df0482 | 2034 | #ifdef DEBUG_SPECS |
ab87f8c8 | 2035 | notice ("spec is '%s'\n\n", *(sl->ptr_spec)); |
20df0482 MM |
2036 | #endif |
2037 | } | |
2038 | ||
2039 | set_spec (p2, *(sl->ptr_spec)); | |
2040 | if (sl->alloc_p) | |
fad205ff | 2041 | free ((void *) *(sl->ptr_spec)); |
20df0482 MM |
2042 | |
2043 | *(sl->ptr_spec) = ""; | |
2044 | sl->alloc_p = 0; | |
2045 | continue; | |
2046 | } | |
2047 | else | |
22d9f2cf KG |
2048 | fatal ("specs unknown %% command after %ld characters", |
2049 | (long) (p1 - buffer)); | |
20df0482 MM |
2050 | } |
2051 | ||
2052 | /* Find the colon that should end the suffix. */ | |
2053 | p1 = p; | |
e9a25f70 JL |
2054 | while (*p1 && *p1 != ':' && *p1 != '\n') |
2055 | p1++; | |
2056 | ||
20df0482 MM |
2057 | /* The colon shouldn't be missing. */ |
2058 | if (*p1 != ':') | |
22d9f2cf KG |
2059 | fatal ("specs file malformed after %ld characters", |
2060 | (long) (p1 - buffer)); | |
e9a25f70 | 2061 | |
20df0482 MM |
2062 | /* Skip back over trailing whitespace. */ |
2063 | p2 = p1; | |
e9a25f70 JL |
2064 | while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) |
2065 | p2--; | |
2066 | ||
20df0482 MM |
2067 | /* Copy the suffix to a string. */ |
2068 | suffix = save_string (p, p2 - p); | |
2069 | /* Find the next line. */ | |
2070 | p = skip_whitespace (p1 + 1); | |
2071 | if (p[1] == 0) | |
22d9f2cf KG |
2072 | fatal ("specs file malformed after %ld characters", |
2073 | (long) (p - buffer)); | |
e9a25f70 | 2074 | |
20df0482 | 2075 | p1 = p; |
bbeb7b65 JW |
2076 | /* Find next blank line or end of string. */ |
2077 | while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0'))) | |
e9a25f70 JL |
2078 | p1++; |
2079 | ||
20df0482 MM |
2080 | /* Specs end at the blank line and do not include the newline. */ |
2081 | spec = save_string (p, p1 - p); | |
2082 | p = p1; | |
2083 | ||
2084 | /* Delete backslash-newline sequences from the spec. */ | |
2085 | in = spec; | |
2086 | out = spec; | |
2087 | while (*in != 0) | |
2088 | { | |
2089 | if (in[0] == '\\' && in[1] == '\n') | |
2090 | in += 2; | |
2091 | else if (in[0] == '#') | |
e9a25f70 JL |
2092 | while (*in && *in != '\n') |
2093 | in++; | |
2094 | ||
20df0482 MM |
2095 | else |
2096 | *out++ = *in++; | |
2097 | } | |
2098 | *out = 0; | |
2099 | ||
2100 | if (suffix[0] == '*') | |
2101 | { | |
2102 | if (! strcmp (suffix, "*link_command")) | |
2103 | link_command_spec = spec; | |
2104 | else | |
2105 | set_spec (suffix + 1, spec); | |
2106 | } | |
2107 | else | |
2108 | { | |
2109 | /* Add this pair to the vector. */ | |
2110 | compilers | |
703ad42b KG |
2111 | = xrealloc (compilers, |
2112 | (n_compilers + 2) * sizeof (struct compiler)); | |
e9a25f70 | 2113 | |
20df0482 | 2114 | compilers[n_compilers].suffix = suffix; |
ea414c97 | 2115 | compilers[n_compilers].spec = spec; |
20df0482 | 2116 | n_compilers++; |
9257393c | 2117 | memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]); |
20df0482 MM |
2118 | } |
2119 | ||
2120 | if (*suffix == 0) | |
2121 | link_command_spec = spec; | |
2122 | } | |
2123 | ||
2124 | if (link_command_spec == 0) | |
2125 | fatal ("spec file has no spec for linking"); | |
2126 | } | |
2127 | \f | |
ed1f651b RS |
2128 | /* Record the names of temporary files we tell compilers to write, |
2129 | and delete them at the end of the run. */ | |
2130 | ||
2131 | /* This is the common prefix we use to make temp file names. | |
2132 | It is chosen once for each run of this program. | |
49009afd | 2133 | It is substituted into a spec by %g or %j. |
ed1f651b RS |
2134 | Thus, all temp file names contain this prefix. |
2135 | In practice, all temp file names start with this prefix. | |
2136 | ||
2137 | This prefix comes from the envvar TMPDIR if it is defined; | |
2138 | otherwise, from the P_tmpdir macro if that is defined; | |
6aa62cff DE |
2139 | otherwise, in /usr/tmp or /tmp; |
2140 | or finally the current directory if all else fails. */ | |
ed1f651b | 2141 | |
878f32c3 | 2142 | static const char *temp_filename; |
ed1f651b RS |
2143 | |
2144 | /* Length of the prefix. */ | |
2145 | ||
2146 | static int temp_filename_length; | |
2147 | ||
2148 | /* Define the list of temporary files to delete. */ | |
2149 | ||
2150 | struct temp_file | |
2151 | { | |
878f32c3 | 2152 | const char *name; |
ed1f651b RS |
2153 | struct temp_file *next; |
2154 | }; | |
2155 | ||
2156 | /* Queue of files to delete on success or failure of compilation. */ | |
2157 | static struct temp_file *always_delete_queue; | |
2158 | /* Queue of files to delete on failure of compilation. */ | |
2159 | static struct temp_file *failure_delete_queue; | |
2160 | ||
2161 | /* Record FILENAME as a file to be deleted automatically. | |
2162 | ALWAYS_DELETE nonzero means delete it if all compilation succeeds; | |
2163 | otherwise delete it in any case. | |
2164 | FAIL_DELETE nonzero means delete it if a compilation step fails; | |
2165 | otherwise delete it in any case. */ | |
2166 | ||
d991c721 | 2167 | void |
1d088dee | 2168 | record_temp_file (const char *filename, int always_delete, int fail_delete) |
ed1f651b | 2169 | { |
b3694847 | 2170 | char *const name = xstrdup (filename); |
ed1f651b RS |
2171 | |
2172 | if (always_delete) | |
2173 | { | |
b3694847 | 2174 | struct temp_file *temp; |
ed1f651b RS |
2175 | for (temp = always_delete_queue; temp; temp = temp->next) |
2176 | if (! strcmp (name, temp->name)) | |
2177 | goto already1; | |
e9a25f70 | 2178 | |
703ad42b | 2179 | temp = xmalloc (sizeof (struct temp_file)); |
ed1f651b RS |
2180 | temp->next = always_delete_queue; |
2181 | temp->name = name; | |
2182 | always_delete_queue = temp; | |
e9a25f70 | 2183 | |
ed1f651b RS |
2184 | already1:; |
2185 | } | |
2186 | ||
2187 | if (fail_delete) | |
2188 | { | |
b3694847 | 2189 | struct temp_file *temp; |
ed1f651b RS |
2190 | for (temp = failure_delete_queue; temp; temp = temp->next) |
2191 | if (! strcmp (name, temp->name)) | |
2192 | goto already2; | |
e9a25f70 | 2193 | |
703ad42b | 2194 | temp = xmalloc (sizeof (struct temp_file)); |
ed1f651b RS |
2195 | temp->next = failure_delete_queue; |
2196 | temp->name = name; | |
2197 | failure_delete_queue = temp; | |
e9a25f70 | 2198 | |
ed1f651b RS |
2199 | already2:; |
2200 | } | |
2201 | } | |
2202 | ||
2203 | /* Delete all the temporary files whose names we previously recorded. */ | |
2204 | ||
d5ea2ac4 | 2205 | static void |
1d088dee | 2206 | delete_if_ordinary (const char *name) |
d5ea2ac4 RK |
2207 | { |
2208 | struct stat st; | |
2209 | #ifdef DEBUG | |
2210 | int i, c; | |
2211 | ||
2212 | printf ("Delete %s? (y or n) ", name); | |
2213 | fflush (stdout); | |
2214 | i = getchar (); | |
2215 | if (i != '\n') | |
e9a25f70 JL |
2216 | while ((c = getchar ()) != '\n' && c != EOF) |
2217 | ; | |
2218 | ||
d5ea2ac4 RK |
2219 | if (i == 'y' || i == 'Y') |
2220 | #endif /* DEBUG */ | |
0e83ceb1 | 2221 | if (stat (name, &st) >= 0 && S_ISREG (st.st_mode)) |
d5ea2ac4 RK |
2222 | if (unlink (name) < 0) |
2223 | if (verbose_flag) | |
2224 | perror_with_name (name); | |
2225 | } | |
2226 | ||
ed1f651b | 2227 | static void |
1d088dee | 2228 | delete_temp_files (void) |
ed1f651b | 2229 | { |
b3694847 | 2230 | struct temp_file *temp; |
ed1f651b RS |
2231 | |
2232 | for (temp = always_delete_queue; temp; temp = temp->next) | |
d5ea2ac4 | 2233 | delete_if_ordinary (temp->name); |
ed1f651b RS |
2234 | always_delete_queue = 0; |
2235 | } | |
2236 | ||
2237 | /* Delete all the files to be deleted on error. */ | |
2238 | ||
2239 | static void | |
1d088dee | 2240 | delete_failure_queue (void) |
ed1f651b | 2241 | { |
b3694847 | 2242 | struct temp_file *temp; |
ed1f651b RS |
2243 | |
2244 | for (temp = failure_delete_queue; temp; temp = temp->next) | |
d5ea2ac4 | 2245 | delete_if_ordinary (temp->name); |
ed1f651b RS |
2246 | } |
2247 | ||
2248 | static void | |
1d088dee | 2249 | clear_failure_queue (void) |
ed1f651b RS |
2250 | { |
2251 | failure_delete_queue = 0; | |
2252 | } | |
b3865ca9 | 2253 | \f |
2628b9d3 DE |
2254 | /* Build a list of search directories from PATHS. |
2255 | PREFIX is a string to prepend to the list. | |
cc2902df | 2256 | If CHECK_DIR_P is nonzero we ensure the directory exists. |
2628b9d3 DE |
2257 | This is used mostly by putenv_from_prefixes so we use `collect_obstack'. |
2258 | It is also used by the --print-search-dirs flag. */ | |
b3865ca9 | 2259 | |
2628b9d3 | 2260 | static char * |
1d088dee AJ |
2261 | build_search_list (struct path_prefix *paths, const char *prefix, |
2262 | int check_dir_p) | |
b3865ca9 RS |
2263 | { |
2264 | int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0; | |
3ae7de4e RK |
2265 | int just_suffix_len |
2266 | = (just_machine_suffix) ? strlen (just_machine_suffix) : 0; | |
b3865ca9 RS |
2267 | int first_time = TRUE; |
2268 | struct prefix_list *pprefix; | |
2269 | ||
2628b9d3 | 2270 | obstack_grow (&collect_obstack, prefix, strlen (prefix)); |
512b62fb | 2271 | obstack_1grow (&collect_obstack, '='); |
b3865ca9 RS |
2272 | |
2273 | for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next) | |
2274 | { | |
2275 | int len = strlen (pprefix->prefix); | |
2276 | ||
0ad5835e | 2277 | if (machine_suffix |
e9a25f70 | 2278 | && (! check_dir_p |
2628b9d3 | 2279 | || is_directory (pprefix->prefix, machine_suffix, 0))) |
b3865ca9 RS |
2280 | { |
2281 | if (!first_time) | |
3ae7de4e | 2282 | obstack_1grow (&collect_obstack, PATH_SEPARATOR); |
9218435e | 2283 | |
b3865ca9 RS |
2284 | first_time = FALSE; |
2285 | obstack_grow (&collect_obstack, pprefix->prefix, len); | |
2286 | obstack_grow (&collect_obstack, machine_suffix, suffix_len); | |
2287 | } | |
2288 | ||
0ad5835e ILT |
2289 | if (just_machine_suffix |
2290 | && pprefix->require_machine_suffix == 2 | |
e9a25f70 | 2291 | && (! check_dir_p |
2628b9d3 | 2292 | || is_directory (pprefix->prefix, just_machine_suffix, 0))) |
ae04227b | 2293 | { |
e9a25f70 | 2294 | if (! first_time) |
3ae7de4e | 2295 | obstack_1grow (&collect_obstack, PATH_SEPARATOR); |
9218435e | 2296 | |
ae04227b CH |
2297 | first_time = FALSE; |
2298 | obstack_grow (&collect_obstack, pprefix->prefix, len); | |
3ae7de4e RK |
2299 | obstack_grow (&collect_obstack, just_machine_suffix, |
2300 | just_suffix_len); | |
ae04227b CH |
2301 | } |
2302 | ||
e9a25f70 | 2303 | if (! pprefix->require_machine_suffix) |
b3865ca9 | 2304 | { |
e9a25f70 | 2305 | if (! first_time) |
3ae7de4e | 2306 | obstack_1grow (&collect_obstack, PATH_SEPARATOR); |
b3865ca9 RS |
2307 | |
2308 | first_time = FALSE; | |
2309 | obstack_grow (&collect_obstack, pprefix->prefix, len); | |
2310 | } | |
2311 | } | |
e9a25f70 | 2312 | |
3ae7de4e | 2313 | obstack_1grow (&collect_obstack, '\0'); |
2628b9d3 | 2314 | return obstack_finish (&collect_obstack); |
b3865ca9 RS |
2315 | } |
2316 | ||
0f41302f MS |
2317 | /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables |
2318 | for collect. */ | |
2628b9d3 DE |
2319 | |
2320 | static void | |
1d088dee | 2321 | putenv_from_prefixes (struct path_prefix *paths, const char *env_var) |
2628b9d3 DE |
2322 | { |
2323 | putenv (build_search_list (paths, env_var, 1)); | |
2324 | } | |
ed1f651b | 2325 | \f |
ca606201 ILT |
2326 | /* Check whether NAME can be accessed in MODE. This is like access, |
2327 | except that it never considers directories to be executable. */ | |
2328 | ||
2329 | static int | |
1d088dee | 2330 | access_check (const char *name, int mode) |
ca606201 ILT |
2331 | { |
2332 | if (mode == X_OK) | |
2333 | { | |
2334 | struct stat st; | |
2335 | ||
2336 | if (stat (name, &st) < 0 | |
2337 | || S_ISDIR (st.st_mode)) | |
2338 | return -1; | |
2339 | } | |
2340 | ||
2341 | return access (name, mode); | |
2342 | } | |
2343 | ||
ed1f651b RS |
2344 | /* Search for NAME using the prefix list PREFIXES. MODE is passed to |
2345 | access to check permissions. | |
0f41302f | 2346 | Return 0 if not found, otherwise return its name, allocated with malloc. */ |
ed1f651b RS |
2347 | |
2348 | static char * | |
1d088dee AJ |
2349 | find_a_file (struct path_prefix *pprefix, const char *name, int mode, |
2350 | int multilib) | |
ed1f651b RS |
2351 | { |
2352 | char *temp; | |
27c38fbe KG |
2353 | const char *const file_suffix = |
2354 | ((mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : ""); | |
ed1f651b RS |
2355 | struct prefix_list *pl; |
2356 | int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1; | |
5bbcd587 | 2357 | const char *multilib_name, *multilib_os_name; |
ed1f651b | 2358 | |
ab339d62 | 2359 | #ifdef DEFAULT_ASSEMBLER |
c5c0b3d9 | 2360 | if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0) |
ad85216e | 2361 | return xstrdup (DEFAULT_ASSEMBLER); |
ab339d62 AO |
2362 | #endif |
2363 | ||
2364 | #ifdef DEFAULT_LINKER | |
ad85216e KG |
2365 | if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0) |
2366 | return xstrdup (DEFAULT_LINKER); | |
ab339d62 AO |
2367 | #endif |
2368 | ||
ed1f651b RS |
2369 | if (machine_suffix) |
2370 | len += strlen (machine_suffix); | |
2371 | ||
5bbcd587 JJ |
2372 | multilib_name = name; |
2373 | multilib_os_name = name; | |
2374 | if (multilib && multilib_os_dir) | |
2375 | { | |
2376 | int len1 = multilib_dir ? strlen (multilib_dir) + 1 : 0; | |
2377 | int len2 = strlen (multilib_os_dir) + 1; | |
2378 | ||
2379 | len += len1 > len2 ? len1 : len2; | |
2380 | if (multilib_dir) | |
2381 | multilib_name = ACONCAT ((multilib_dir, dir_separator_str, name, | |
2382 | NULL)); | |
2383 | if (strcmp (multilib_os_dir, ".") != 0) | |
2384 | multilib_os_name = ACONCAT ((multilib_os_dir, dir_separator_str, name, | |
2385 | NULL)); | |
2386 | } | |
2387 | ||
ed1f651b RS |
2388 | temp = xmalloc (len); |
2389 | ||
2390 | /* Determine the filename to execute (special case for absolute paths). */ | |
2391 | ||
3dce1408 | 2392 | if (IS_ABSOLUTE_PATH (name)) |
ed1f651b | 2393 | { |
ab339d62 | 2394 | if (access (name, mode) == 0) |
ed1f651b RS |
2395 | { |
2396 | strcpy (temp, name); | |
2397 | return temp; | |
2398 | } | |
2399 | } | |
2400 | else | |
2401 | for (pl = pprefix->plist; pl; pl = pl->next) | |
2402 | { | |
5bbcd587 JJ |
2403 | const char *this_name |
2404 | = pl->os_multilib ? multilib_os_name : multilib_name; | |
2405 | ||
ed1f651b RS |
2406 | if (machine_suffix) |
2407 | { | |
ed1f651b | 2408 | /* Some systems have a suffix for executable files. |
460dcab4 | 2409 | So try appending that first. */ |
ed1f651b RS |
2410 | if (file_suffix[0] != 0) |
2411 | { | |
460dcab4 RK |
2412 | strcpy (temp, pl->prefix); |
2413 | strcat (temp, machine_suffix); | |
5bbcd587 | 2414 | strcat (temp, multilib_name); |
ed1f651b | 2415 | strcat (temp, file_suffix); |
ca606201 | 2416 | if (access_check (temp, mode) == 0) |
ed1f651b RS |
2417 | { |
2418 | if (pl->used_flag_ptr != 0) | |
2419 | *pl->used_flag_ptr = 1; | |
2420 | return temp; | |
2421 | } | |
2422 | } | |
460dcab4 | 2423 | |
5bbcd587 | 2424 | /* Now try just the multilib_name. */ |
ae04227b | 2425 | strcpy (temp, pl->prefix); |
460dcab4 | 2426 | strcat (temp, machine_suffix); |
5bbcd587 | 2427 | strcat (temp, multilib_name); |
ca606201 | 2428 | if (access_check (temp, mode) == 0) |
ae04227b CH |
2429 | { |
2430 | if (pl->used_flag_ptr != 0) | |
2431 | *pl->used_flag_ptr = 1; | |
2432 | return temp; | |
2433 | } | |
460dcab4 RK |
2434 | } |
2435 | ||
2436 | /* Certain prefixes are tried with just the machine type, | |
2437 | not the version. This is used for finding as, ld, etc. */ | |
2438 | if (just_machine_suffix && pl->require_machine_suffix == 2) | |
2439 | { | |
ae04227b | 2440 | /* Some systems have a suffix for executable files. |
460dcab4 | 2441 | So try appending that first. */ |
ae04227b CH |
2442 | if (file_suffix[0] != 0) |
2443 | { | |
460dcab4 RK |
2444 | strcpy (temp, pl->prefix); |
2445 | strcat (temp, just_machine_suffix); | |
5bbcd587 | 2446 | strcat (temp, multilib_name); |
ae04227b | 2447 | strcat (temp, file_suffix); |
ca606201 | 2448 | if (access_check (temp, mode) == 0) |
ae04227b CH |
2449 | { |
2450 | if (pl->used_flag_ptr != 0) | |
2451 | *pl->used_flag_ptr = 1; | |
2452 | return temp; | |
2453 | } | |
2454 | } | |
460dcab4 | 2455 | |
ed1f651b | 2456 | strcpy (temp, pl->prefix); |
460dcab4 | 2457 | strcat (temp, just_machine_suffix); |
5bbcd587 | 2458 | strcat (temp, multilib_name); |
ca606201 | 2459 | if (access_check (temp, mode) == 0) |
ed1f651b RS |
2460 | { |
2461 | if (pl->used_flag_ptr != 0) | |
2462 | *pl->used_flag_ptr = 1; | |
2463 | return temp; | |
2464 | } | |
460dcab4 RK |
2465 | } |
2466 | ||
2467 | /* Certain prefixes can't be used without the machine suffix | |
2468 | when the machine or version is explicitly specified. */ | |
e9a25f70 | 2469 | if (! pl->require_machine_suffix) |
460dcab4 | 2470 | { |
ed1f651b | 2471 | /* Some systems have a suffix for executable files. |
460dcab4 | 2472 | So try appending that first. */ |
ed1f651b RS |
2473 | if (file_suffix[0] != 0) |
2474 | { | |
460dcab4 | 2475 | strcpy (temp, pl->prefix); |
5bbcd587 | 2476 | strcat (temp, this_name); |
ed1f651b | 2477 | strcat (temp, file_suffix); |
ca606201 | 2478 | if (access_check (temp, mode) == 0) |
ed1f651b RS |
2479 | { |
2480 | if (pl->used_flag_ptr != 0) | |
2481 | *pl->used_flag_ptr = 1; | |
2482 | return temp; | |
2483 | } | |
2484 | } | |
460dcab4 RK |
2485 | |
2486 | strcpy (temp, pl->prefix); | |
5bbcd587 | 2487 | strcat (temp, this_name); |
ca606201 | 2488 | if (access_check (temp, mode) == 0) |
460dcab4 RK |
2489 | { |
2490 | if (pl->used_flag_ptr != 0) | |
2491 | *pl->used_flag_ptr = 1; | |
2492 | return temp; | |
2493 | } | |
ed1f651b RS |
2494 | } |
2495 | } | |
2496 | ||
2497 | free (temp); | |
2498 | return 0; | |
2499 | } | |
2500 | ||
922a4beb | 2501 | /* Ranking of prefixes in the sort list. -B prefixes are put before |
9218435e | 2502 | all others. */ |
922a4beb AC |
2503 | |
2504 | enum path_prefix_priority | |
2505 | { | |
2506 | PREFIX_PRIORITY_B_OPT, | |
2507 | PREFIX_PRIORITY_LAST | |
2508 | }; | |
2509 | ||
fbe5a4a6 | 2510 | /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending |
922a4beb AC |
2511 | order according to PRIORITY. Within each PRIORITY, new entries are |
2512 | appended. | |
ed1f651b RS |
2513 | |
2514 | If WARN is nonzero, we will warn if no file is found | |
2515 | through this prefix. WARN should point to an int | |
ae04227b CH |
2516 | which will be set to 1 if this entry is used. |
2517 | ||
e9a25f70 JL |
2518 | COMPONENT is the value to be passed to update_path. |
2519 | ||
ae04227b CH |
2520 | REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without |
2521 | the complete value of machine_suffix. | |
2522 | 2 means try both machine_suffix and just_machine_suffix. */ | |
ed1f651b RS |
2523 | |
2524 | static void | |
1d088dee AJ |
2525 | add_prefix (struct path_prefix *pprefix, const char *prefix, |
2526 | const char *component, /* enum prefix_priority */ int priority, | |
2527 | int require_machine_suffix, int *warn, int os_multilib) | |
ed1f651b RS |
2528 | { |
2529 | struct prefix_list *pl, **prev; | |
2530 | int len; | |
2531 | ||
922a4beb AC |
2532 | for (prev = &pprefix->plist; |
2533 | (*prev) != NULL && (*prev)->priority <= priority; | |
2534 | prev = &(*prev)->next) | |
2535 | ; | |
ed1f651b | 2536 | |
f9da5064 | 2537 | /* Keep track of the longest prefix. */ |
ed1f651b | 2538 | |
e9a25f70 | 2539 | prefix = update_path (prefix, component); |
ed1f651b RS |
2540 | len = strlen (prefix); |
2541 | if (len > pprefix->max_len) | |
2542 | pprefix->max_len = len; | |
2543 | ||
703ad42b | 2544 | pl = xmalloc (sizeof (struct prefix_list)); |
51c04256 | 2545 | pl->prefix = prefix; |
ed1f651b RS |
2546 | pl->require_machine_suffix = require_machine_suffix; |
2547 | pl->used_flag_ptr = warn; | |
922a4beb | 2548 | pl->priority = priority; |
5bbcd587 | 2549 | pl->os_multilib = os_multilib; |
ed1f651b RS |
2550 | if (warn) |
2551 | *warn = 0; | |
2552 | ||
f9da5064 | 2553 | /* Insert after PREV. */ |
922a4beb AC |
2554 | pl->next = (*prev); |
2555 | (*prev) = pl; | |
ed1f651b | 2556 | } |
4977bab6 ZW |
2557 | |
2558 | /* Same as add_prefix, but prepending target_system_root to prefix. */ | |
2559 | static void | |
1d088dee AJ |
2560 | add_sysrooted_prefix (struct path_prefix *pprefix, const char *prefix, |
2561 | const char *component, | |
2562 | /* enum prefix_priority */ int priority, | |
2563 | int require_machine_suffix, int *warn, int os_multilib) | |
4977bab6 | 2564 | { |
3dce1408 | 2565 | if (!IS_ABSOLUTE_PATH (prefix)) |
4977bab6 ZW |
2566 | abort (); |
2567 | ||
2568 | if (target_system_root) | |
2569 | { | |
e7f13528 GP |
2570 | if (target_sysroot_suffix) |
2571 | prefix = concat (target_sysroot_suffix, prefix, NULL); | |
4977bab6 | 2572 | prefix = concat (target_system_root, prefix, NULL); |
e7f13528 | 2573 | |
4977bab6 ZW |
2574 | /* We have to override this because GCC's notion of sysroot |
2575 | moves along with GCC. */ | |
2576 | component = "GCC"; | |
2577 | } | |
2578 | ||
2579 | add_prefix (pprefix, prefix, component, priority, | |
2580 | require_machine_suffix, warn, os_multilib); | |
2581 | } | |
ed1f651b RS |
2582 | \f |
2583 | /* Execute the command specified by the arguments on the current line of spec. | |
2584 | When using pipes, this includes several piped-together commands | |
2585 | with `|' between them. | |
2586 | ||
2587 | Return 0 if successful, -1 if failed. */ | |
2588 | ||
2589 | static int | |
1d088dee | 2590 | execute (void) |
ed1f651b RS |
2591 | { |
2592 | int i; | |
2593 | int n_commands; /* # of command. */ | |
2594 | char *string; | |
2595 | struct command | |
d25a45d4 KH |
2596 | { |
2597 | const char *prog; /* program name. */ | |
2598 | const char **argv; /* vector of args. */ | |
2599 | int pid; /* pid of process for this command. */ | |
2600 | }; | |
ed1f651b RS |
2601 | |
2602 | struct command *commands; /* each command buffer with above info. */ | |
2603 | ||
f3226a90 JT |
2604 | if (processing_spec_function) |
2605 | abort (); | |
2606 | ||
ed1f651b RS |
2607 | /* Count # of piped commands. */ |
2608 | for (n_commands = 1, i = 0; i < argbuf_index; i++) | |
2609 | if (strcmp (argbuf[i], "|") == 0) | |
2610 | n_commands++; | |
2611 | ||
2612 | /* Get storage for each command. */ | |
703ad42b | 2613 | commands = alloca (n_commands * sizeof (struct command)); |
ed1f651b RS |
2614 | |
2615 | /* Split argbuf into its separate piped processes, | |
2616 | and record info about each one. | |
2617 | Also search for the programs that are to be run. */ | |
2618 | ||
2619 | commands[0].prog = argbuf[0]; /* first command. */ | |
2620 | commands[0].argv = &argbuf[0]; | |
5bbcd587 | 2621 | string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, 0); |
10da1131 | 2622 | |
ed1f651b RS |
2623 | if (string) |
2624 | commands[0].argv[0] = string; | |
2625 | ||
2626 | for (n_commands = 1, i = 0; i < argbuf_index; i++) | |
2627 | if (strcmp (argbuf[i], "|") == 0) | |
2628 | { /* each command. */ | |
6405c0ec | 2629 | #if defined (__MSDOS__) || defined (OS2) || defined (VMS) |
d25a45d4 | 2630 | fatal ("-pipe not supported"); |
ed1f651b RS |
2631 | #endif |
2632 | argbuf[i] = 0; /* termination of command args. */ | |
2633 | commands[n_commands].prog = argbuf[i + 1]; | |
2634 | commands[n_commands].argv = &argbuf[i + 1]; | |
5bbcd587 JJ |
2635 | string = find_a_file (&exec_prefixes, commands[n_commands].prog, |
2636 | X_OK, 0); | |
ed1f651b RS |
2637 | if (string) |
2638 | commands[n_commands].argv[0] = string; | |
2639 | n_commands++; | |
2640 | } | |
2641 | ||
2642 | argbuf[argbuf_index] = 0; | |
2643 | ||
2644 | /* If -v, print what we are about to do, and maybe query. */ | |
2645 | ||
b3865ca9 | 2646 | if (verbose_flag) |
ed1f651b | 2647 | { |
b8468bc7 NC |
2648 | /* For help listings, put a blank line between sub-processes. */ |
2649 | if (print_help_list) | |
2650 | fputc ('\n', stderr); | |
9218435e | 2651 | |
ed1f651b | 2652 | /* Print each piped command as a separate line. */ |
d25a45d4 | 2653 | for (i = 0; i < n_commands; i++) |
ed1f651b | 2654 | { |
37620334 | 2655 | const char *const *j; |
ed1f651b | 2656 | |
589005ff KH |
2657 | if (verbose_only_flag) |
2658 | { | |
99f78cdd IR |
2659 | for (j = commands[i].argv; *j; j++) |
2660 | { | |
88f92c0f | 2661 | const char *p; |
99f78cdd IR |
2662 | fprintf (stderr, " \""); |
2663 | for (p = *j; *p; ++p) | |
2664 | { | |
2665 | if (*p == '"' || *p == '\\' || *p == '$') | |
2666 | fputc ('\\', stderr); | |
2667 | fputc (*p, stderr); | |
2668 | } | |
2669 | fputc ('"', stderr); | |
2670 | } | |
589005ff KH |
2671 | } |
2672 | else | |
99f78cdd IR |
2673 | for (j = commands[i].argv; *j; j++) |
2674 | fprintf (stderr, " %s", *j); | |
ed1f651b RS |
2675 | |
2676 | /* Print a pipe symbol after all but the last command. */ | |
2677 | if (i + 1 != n_commands) | |
2678 | fprintf (stderr, " |"); | |
2679 | fprintf (stderr, "\n"); | |
2680 | } | |
2681 | fflush (stderr); | |
99f78cdd | 2682 | if (verbose_only_flag != 0) |
589005ff | 2683 | return 0; |
ed1f651b | 2684 | #ifdef DEBUG |
ab87f8c8 | 2685 | notice ("\nGo ahead? (y or n) "); |
ed1f651b RS |
2686 | fflush (stderr); |
2687 | i = getchar (); | |
2688 | if (i != '\n') | |
e9a25f70 JL |
2689 | while (getchar () != '\n') |
2690 | ; | |
2691 | ||
ed1f651b RS |
2692 | if (i != 'y' && i != 'Y') |
2693 | return 0; | |
2694 | #endif /* DEBUG */ | |
2695 | } | |
2696 | ||
414d23ae | 2697 | #ifdef ENABLE_VALGRIND_CHECKING |
fbe5a4a6 | 2698 | /* Run the each command through valgrind. To simplify prepending the |
414d23ae HPN |
2699 | path to valgrind and the option "-q" (for quiet operation unless |
2700 | something triggers), we allocate a separate argv array. */ | |
2701 | ||
2702 | for (i = 0; i < n_commands; i++) | |
2703 | { | |
2704 | const char **argv; | |
2705 | int argc; | |
2706 | int j; | |
2707 | ||
2708 | for (argc = 0; commands[i].argv[argc] != NULL; argc++) | |
2709 | ; | |
2710 | ||
2711 | argv = alloca ((argc + 3) * sizeof (char *)); | |
2712 | ||
2713 | argv[0] = VALGRIND_PATH; | |
2714 | argv[1] = "-q"; | |
2715 | for (j = 2; j < argc + 2; j++) | |
2716 | argv[j] = commands[i].argv[j - 2]; | |
2717 | argv[j] = NULL; | |
2718 | ||
2719 | commands[i].argv = argv; | |
2720 | commands[i].prog = argv[0]; | |
2721 | } | |
2722 | #endif | |
2723 | ||
ed1f651b RS |
2724 | /* Run each piped subprocess. */ |
2725 | ||
ed1f651b RS |
2726 | for (i = 0; i < n_commands; i++) |
2727 | { | |
c10d53dd | 2728 | char *errmsg_fmt, *errmsg_arg; |
fbd40359 | 2729 | const char *string = commands[i].argv[0]; |
ed1f651b | 2730 | |
37620334 ZW |
2731 | /* For some bizarre reason, the second argument of execvp() is |
2732 | char *const *, not const char *const *. */ | |
2733 | commands[i].pid = pexecute (string, (char *const *) commands[i].argv, | |
c10d53dd DE |
2734 | programname, temp_filename, |
2735 | &errmsg_fmt, &errmsg_arg, | |
2736 | ((i == 0 ? PEXECUTE_FIRST : 0) | |
2737 | | (i + 1 == n_commands ? PEXECUTE_LAST : 0) | |
2738 | | (string == commands[i].prog | |
1c874773 DE |
2739 | ? PEXECUTE_SEARCH : 0) |
2740 | | (verbose_flag ? PEXECUTE_VERBOSE : 0))); | |
c10d53dd DE |
2741 | |
2742 | if (commands[i].pid == -1) | |
2743 | pfatal_pexecute (errmsg_fmt, errmsg_arg); | |
ed1f651b RS |
2744 | |
2745 | if (string != commands[i].prog) | |
fad205ff | 2746 | free ((void *) string); |
ed1f651b RS |
2747 | } |
2748 | ||
2749 | execution_count++; | |
2750 | ||
2751 | /* Wait for all the subprocesses to finish. | |
2752 | We don't care what order they finish in; | |
34cd1bd7 RK |
2753 | we know that N_COMMANDS waits will get them all. |
2754 | Ignore subprocesses that we don't know about, | |
2755 | since they can be spawned by the process that exec'ed us. */ | |
ed1f651b RS |
2756 | |
2757 | { | |
2758 | int ret_code = 0; | |
03c41c05 ZW |
2759 | #ifdef HAVE_GETRUSAGE |
2760 | struct timeval d; | |
a544cfd2 | 2761 | double ut = 0.0, st = 0.0; |
03c41c05 | 2762 | #endif |
ed1f651b | 2763 | |
d25a45d4 | 2764 | for (i = 0; i < n_commands;) |
ed1f651b | 2765 | { |
34cd1bd7 | 2766 | int j; |
ed1f651b RS |
2767 | int status; |
2768 | int pid; | |
ed1f651b | 2769 | |
c10d53dd | 2770 | pid = pwait (commands[i].pid, &status, 0); |
ed1f651b RS |
2771 | if (pid < 0) |
2772 | abort (); | |
2773 | ||
03c41c05 ZW |
2774 | #ifdef HAVE_GETRUSAGE |
2775 | if (report_times) | |
2776 | { | |
2777 | /* getrusage returns the total resource usage of all children | |
2778 | up to now. Copy the previous values into prus, get the | |
2779 | current statistics, then take the difference. */ | |
2780 | ||
2781 | prus = rus; | |
2782 | getrusage (RUSAGE_CHILDREN, &rus); | |
2783 | d.tv_sec = rus.ru_utime.tv_sec - prus.ru_utime.tv_sec; | |
2784 | d.tv_usec = rus.ru_utime.tv_usec - prus.ru_utime.tv_usec; | |
d25a45d4 | 2785 | ut = (double) d.tv_sec + (double) d.tv_usec / 1.0e6; |
9218435e | 2786 | |
03c41c05 ZW |
2787 | d.tv_sec = rus.ru_stime.tv_sec - prus.ru_stime.tv_sec; |
2788 | d.tv_usec = rus.ru_stime.tv_usec - prus.ru_stime.tv_usec; | |
d25a45d4 | 2789 | st = (double) d.tv_sec + (double) d.tv_usec / 1.0e6; |
03c41c05 ZW |
2790 | } |
2791 | #endif | |
2792 | ||
34cd1bd7 RK |
2793 | for (j = 0; j < n_commands; j++) |
2794 | if (commands[j].pid == pid) | |
2795 | { | |
2796 | i++; | |
c334349b | 2797 | if (WIFSIGNALED (status)) |
34cd1bd7 | 2798 | { |
c334349b ZW |
2799 | #ifdef SIGPIPE |
2800 | /* SIGPIPE is a special case. It happens in -pipe mode | |
2801 | when the compiler dies before the preprocessor is | |
2802 | done, or the assembler dies before the compiler is | |
2803 | done. There's generally been an error already, and | |
2804 | this is just fallout. So don't generate another error | |
2805 | unless we would otherwise have succeeded. */ | |
2806 | if (WTERMSIG (status) == SIGPIPE | |
2807 | && (signal_count || greatest_status >= MIN_FATAL_STATUS)) | |
2808 | ; | |
2809 | else | |
2810 | #endif | |
2811 | fatal ("\ | |
2812 | Internal error: %s (program %s)\n\ | |
2813 | Please submit a full bug report.\n\ | |
2814 | See %s for instructions.", | |
2815 | strsignal (WTERMSIG (status)), commands[j].prog, | |
a976603e | 2816 | bug_report_url); |
c334349b ZW |
2817 | signal_count++; |
2818 | ret_code = -1; | |
2819 | } | |
2820 | else if (WIFEXITED (status) | |
2821 | && WEXITSTATUS (status) >= MIN_FATAL_STATUS) | |
2822 | { | |
2823 | if (WEXITSTATUS (status) > greatest_status) | |
2824 | greatest_status = WEXITSTATUS (status); | |
2825 | ret_code = -1; | |
34cd1bd7 | 2826 | } |
03c41c05 ZW |
2827 | #ifdef HAVE_GETRUSAGE |
2828 | if (report_times && ut + st != 0) | |
2829 | notice ("# %s %.2f %.2f\n", commands[j].prog, ut, st); | |
2830 | #endif | |
34cd1bd7 RK |
2831 | break; |
2832 | } | |
ed1f651b RS |
2833 | } |
2834 | return ret_code; | |
2835 | } | |
2836 | } | |
2837 | \f | |
2838 | /* Find all the switches given to us | |
2839 | and make a vector describing them. | |
2840 | The elements of the vector are strings, one per switch given. | |
2841 | If a switch uses following arguments, then the `part1' field | |
2842 | is the switch itself and the `args' field | |
2843 | is a null-terminated vector containing the following arguments. | |
8097c429 TT |
2844 | The `live_cond' field is: |
2845 | 0 when initialized | |
2846 | 1 if the switch is true in a conditional spec, | |
2847 | -1 if false (overridden by a later switch) | |
4977bab6 | 2848 | -2 if this switch should be ignored (used in %<S) |
ab87f8c8 | 2849 | The `validated' field is nonzero if any spec has looked at this switch; |
ed1f651b RS |
2850 | if it remains zero at the end of the run, it must be meaningless. */ |
2851 | ||
8097c429 TT |
2852 | #define SWITCH_OK 0 |
2853 | #define SWITCH_FALSE -1 | |
2854 | #define SWITCH_IGNORE -2 | |
2855 | #define SWITCH_LIVE 1 | |
2856 | ||
ed1f651b RS |
2857 | struct switchstr |
2858 | { | |
878f32c3 | 2859 | const char *part1; |
fbd40359 | 2860 | const char **args; |
f5b0eb4e | 2861 | int live_cond; |
196a37f4 NB |
2862 | unsigned char validated; |
2863 | unsigned char ordering; | |
ed1f651b RS |
2864 | }; |
2865 | ||
2866 | static struct switchstr *switches; | |
2867 | ||
2868 | static int n_switches; | |
2869 | ||
2870 | struct infile | |
2871 | { | |
878f32c3 KG |
2872 | const char *name; |
2873 | const char *language; | |
ed1f651b RS |
2874 | }; |
2875 | ||
2876 | /* Also a vector of input files specified. */ | |
2877 | ||
2878 | static struct infile *infiles; | |
2879 | ||
3a5a9edc | 2880 | int n_infiles; |
ed1f651b | 2881 | |
d1bd0ded GK |
2882 | /* True if multiple input files are being compiled to a single |
2883 | assembly file. */ | |
2884 | ||
2885 | static bool combine_inputs; | |
2886 | ||
08dc830e | 2887 | /* This counts the number of libraries added by lang_specific_driver, so that |
a2a05b0a JW |
2888 | we can tell if there were any user supplied any files or libraries. */ |
2889 | ||
2890 | static int added_libraries; | |
2891 | ||
ed1f651b RS |
2892 | /* And a vector of corresponding output files is made up later. */ |
2893 | ||
3a5a9edc | 2894 | const char **outfiles; |
ed1f651b | 2895 | |
5d7bb90c RK |
2896 | /* Used to track if none of the -B paths are used. */ |
2897 | static int warn_B; | |
2898 | ||
5d7bb90c | 2899 | /* Gives value to pass as "warn" to add_prefix for standard prefixes. */ |
b27804a8 | 2900 | static int *warn_std_ptr = 0; |
853e0b2d | 2901 | \f |
45936a85 | 2902 | #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX) |
853e0b2d RK |
2903 | |
2904 | /* Convert NAME to a new name if it is the standard suffix. DO_EXE | |
a9657ce8 DR |
2905 | is true if we should look for an executable suffix. DO_OBJ |
2906 | is true if we should look for an object suffix. */ | |
853e0b2d | 2907 | |
40cdfca6 | 2908 | static const char * |
1d088dee AJ |
2909 | convert_filename (const char *name, int do_exe ATTRIBUTE_UNUSED, |
2910 | int do_obj ATTRIBUTE_UNUSED) | |
853e0b2d | 2911 | { |
40cdfca6 | 2912 | #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) |
853e0b2d | 2913 | int i; |
40cdfca6 | 2914 | #endif |
87e690e2 MK |
2915 | int len; |
2916 | ||
2917 | if (name == NULL) | |
2918 | return NULL; | |
9218435e | 2919 | |
87e690e2 | 2920 | len = strlen (name); |
853e0b2d | 2921 | |
45936a85 DD |
2922 | #ifdef HAVE_TARGET_OBJECT_SUFFIX |
2923 | /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */ | |
a9657ce8 | 2924 | if (do_obj && len > 2 |
853e0b2d RK |
2925 | && name[len - 2] == '.' |
2926 | && name[len - 1] == 'o') | |
2927 | { | |
bdc5ed93 | 2928 | obstack_grow (&obstack, name, len - 2); |
45936a85 | 2929 | obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX)); |
853e0b2d RK |
2930 | name = obstack_finish (&obstack); |
2931 | } | |
2932 | #endif | |
2933 | ||
45936a85 | 2934 | #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) |
853e0b2d RK |
2935 | /* If there is no filetype, make it the executable suffix (which includes |
2936 | the "."). But don't get confused if we have just "-o". */ | |
45936a85 | 2937 | if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-')) |
853e0b2d RK |
2938 | return name; |
2939 | ||
e0040a8e | 2940 | for (i = len - 1; i >= 0; i--) |
509781a4 | 2941 | if (IS_DIR_SEPARATOR (name[i])) |
e0040a8e RK |
2942 | break; |
2943 | ||
2944 | for (i++; i < len; i++) | |
853e0b2d RK |
2945 | if (name[i] == '.') |
2946 | return name; | |
2947 | ||
2948 | obstack_grow (&obstack, name, len); | |
5d9669fd RK |
2949 | obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX, |
2950 | strlen (TARGET_EXECUTABLE_SUFFIX)); | |
853e0b2d RK |
2951 | name = obstack_finish (&obstack); |
2952 | #endif | |
2953 | ||
2954 | return name; | |
2955 | } | |
2956 | #endif | |
b8468bc7 NC |
2957 | \f |
2958 | /* Display the command line switches accepted by gcc. */ | |
2959 | static void | |
1d088dee | 2960 | display_help (void) |
b8468bc7 | 2961 | { |
5e4adfba PT |
2962 | printf (_("Usage: %s [options] file...\n"), programname); |
2963 | fputs (_("Options:\n"), stdout); | |
b8468bc7 | 2964 | |
5e4adfba PT |
2965 | fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout); |
2966 | fputs (_(" --help Display this information\n"), stdout); | |
91606ce2 | 2967 | fputs (_(" --target-help Display target specific command line options\n"), stdout); |
b8468bc7 | 2968 | if (! verbose_flag) |
5e4adfba PT |
2969 | fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout); |
2970 | fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout); | |
2971 | fputs (_(" -dumpversion Display the version of the compiler\n"), stdout); | |
2972 | fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout); | |
2973 | fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout); | |
2974 | fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout); | |
2975 | fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout); | |
2976 | fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout); | |
2977 | fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout); | |
2978 | fputs (_("\ | |
2979 | -print-multi-lib Display the mapping between command line options and\n\ | |
2980 | multiple library search directories\n"), stdout); | |
5bbcd587 | 2981 | fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout); |
5e4adfba PT |
2982 | fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout); |
2983 | fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout); | |
2984 | fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout); | |
4977bab6 ZW |
2985 | fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout); |
2986 | fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout); | |
5e4adfba PT |
2987 | fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout); |
2988 | fputs (_(" -save-temps Do not delete intermediate files\n"), stdout); | |
2989 | fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout); | |
2990 | fputs (_(" -time Time the execution of each subprocess\n"), stdout); | |
b0287a90 | 2991 | fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout); |
5e4adfba PT |
2992 | fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout); |
2993 | fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout); | |
2994 | fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout); | |
2995 | fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout); | |
2996 | fputs (_(" -v Display the programs invoked by the compiler\n"), stdout); | |
99f78cdd | 2997 | fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout); |
5e4adfba PT |
2998 | fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout); |
2999 | fputs (_(" -S Compile only; do not assemble or link\n"), stdout); | |
3000 | fputs (_(" -c Compile and assemble, but do not link\n"), stdout); | |
3001 | fputs (_(" -o <file> Place the output into <file>\n"), stdout); | |
3002 | fputs (_("\ | |
3003 | -x <language> Specify the language of the following input files\n\ | |
8e854b76 | 3004 | Permissible languages include: c c++ assembler none\n\ |
1737c953 | 3005 | 'none' means revert to the default behavior of\n\ |
5e4adfba PT |
3006 | guessing the language based on the file's extension\n\ |
3007 | "), stdout); | |
3008 | ||
0c386769 | 3009 | printf (_("\ |
d991c721 BK |
3010 | \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\ |
3011 | passed on to the various sub-processes invoked by %s. In order to pass\n\ | |
3012 | other options on to these processes the -W<letter> options must be used.\n\ | |
0c386769 | 3013 | "), programname); |
b8468bc7 NC |
3014 | |
3015 | /* The rest of the options are displayed by invocations of the various | |
3016 | sub-processes. */ | |
3017 | } | |
3018 | ||
9218435e | 3019 | static void |
1d088dee | 3020 | add_preprocessor_option (const char *option, int len) |
9218435e | 3021 | { |
878f32c3 | 3022 | n_preprocessor_options++; |
9218435e | 3023 | |
878f32c3 | 3024 | if (! preprocessor_options) |
703ad42b | 3025 | preprocessor_options = xmalloc (n_preprocessor_options * sizeof (char *)); |
878f32c3 | 3026 | else |
703ad42b KG |
3027 | preprocessor_options = xrealloc (preprocessor_options, |
3028 | n_preprocessor_options * sizeof (char *)); | |
9218435e | 3029 | |
878f32c3 KG |
3030 | preprocessor_options [n_preprocessor_options - 1] = |
3031 | save_string (option, len); | |
40f943dd | 3032 | } |
9218435e KH |
3033 | |
3034 | static void | |
1d088dee | 3035 | add_assembler_option (const char *option, int len) |
878f32c3 KG |
3036 | { |
3037 | n_assembler_options++; | |
3038 | ||
3039 | if (! assembler_options) | |
703ad42b | 3040 | assembler_options = xmalloc (n_assembler_options * sizeof (char *)); |
878f32c3 | 3041 | else |
703ad42b KG |
3042 | assembler_options = xrealloc (assembler_options, |
3043 | n_assembler_options * sizeof (char *)); | |
878f32c3 KG |
3044 | |
3045 | assembler_options [n_assembler_options - 1] = save_string (option, len); | |
b8468bc7 | 3046 | } |
9218435e KH |
3047 | |
3048 | static void | |
1d088dee | 3049 | add_linker_option (const char *option, int len) |
878f32c3 KG |
3050 | { |
3051 | n_linker_options++; | |
3052 | ||
3053 | if (! linker_options) | |
703ad42b | 3054 | linker_options = xmalloc (n_linker_options * sizeof (char *)); |
878f32c3 | 3055 | else |
703ad42b KG |
3056 | linker_options = xrealloc (linker_options, |
3057 | n_linker_options * sizeof (char *)); | |
878f32c3 KG |
3058 | |
3059 | linker_options [n_linker_options - 1] = save_string (option, len); | |
40f943dd | 3060 | } |
853e0b2d | 3061 | \f |
ed1f651b RS |
3062 | /* Create the vector `switches' and its contents. |
3063 | Store its length in `n_switches'. */ | |
3064 | ||
3065 | static void | |
1d088dee | 3066 | process_command (int argc, const char *const *argv) |
ed1f651b | 3067 | { |
b3694847 | 3068 | int i; |
878f32c3 KG |
3069 | const char *temp; |
3070 | char *temp1; | |
fbd40359 | 3071 | const char *spec_lang = 0; |
ed1f651b | 3072 | int last_language_n_infiles; |
f2cf3e1e RK |
3073 | int have_c = 0; |
3074 | int have_o = 0; | |
3a265431 | 3075 | int lang_n_infiles = 0; |
dc36ec2c RK |
3076 | #ifdef MODIFY_TARGET_NAME |
3077 | int is_modify_target_name; | |
2e59adac | 3078 | int j; |
dc36ec2c | 3079 | #endif |
ed1f651b | 3080 | |
2f8dd115 | 3081 | GET_ENVIRONMENT (gcc_exec_prefix, "GCC_EXEC_PREFIX"); |
8eebb258 | 3082 | |
ed1f651b RS |
3083 | n_switches = 0; |
3084 | n_infiles = 0; | |
a2a05b0a | 3085 | added_libraries = 0; |
2484b6d2 | 3086 | |
53117a2f RK |
3087 | /* Figure compiler version from version string. */ |
3088 | ||
9218435e | 3089 | compiler_version = temp1 = xstrdup (version_string); |
ad85216e | 3090 | |
878f32c3 | 3091 | for (; *temp1; ++temp1) |
53117a2f | 3092 | { |
878f32c3 | 3093 | if (*temp1 == ' ') |
53117a2f | 3094 | { |
878f32c3 | 3095 | *temp1 = '\0'; |
53117a2f RK |
3096 | break; |
3097 | } | |
3098 | } | |
ed1f651b | 3099 | |
37a4aa31 GK |
3100 | /* If there is a -V or -b option (or both), process it now, before |
3101 | trying to interpret the rest of the command line. */ | |
3102 | if (argc > 1 && argv[1][0] == '-' | |
8c124730 | 3103 | && (argv[1][1] == 'V' || argv[1][1] == 'b')) |
37a4aa31 GK |
3104 | { |
3105 | const char *new_version = DEFAULT_TARGET_VERSION; | |
3106 | const char *new_machine = DEFAULT_TARGET_MACHINE; | |
ea16b5ee RS |
3107 | const char *progname = argv[0]; |
3108 | char **new_argv; | |
37a4aa31 GK |
3109 | char *new_argv0; |
3110 | int baselen; | |
1d088dee | 3111 | |
ea16b5ee RS |
3112 | while (argc > 1 && argv[1][0] == '-' |
3113 | && (argv[1][1] == 'V' || argv[1][1] == 'b')) | |
37a4aa31 | 3114 | { |
ea16b5ee | 3115 | char opt = argv[1][1]; |
37a4aa31 | 3116 | const char *arg; |
ea16b5ee | 3117 | if (argv[1][2] != '\0') |
37a4aa31 | 3118 | { |
ea16b5ee | 3119 | arg = argv[1] + 2; |
37a4aa31 | 3120 | argc -= 1; |
ea16b5ee | 3121 | argv += 1; |
37a4aa31 GK |
3122 | } |
3123 | else if (argc > 2) | |
3124 | { | |
ea16b5ee | 3125 | arg = argv[2]; |
37a4aa31 | 3126 | argc -= 2; |
ea16b5ee | 3127 | argv += 2; |
37a4aa31 GK |
3128 | } |
3129 | else | |
3130 | fatal ("`-%c' option must have argument", opt); | |
3131 | if (opt == 'V') | |
3132 | new_version = arg; | |
3133 | else | |
3134 | new_machine = arg; | |
3135 | } | |
3136 | ||
ea16b5ee RS |
3137 | for (baselen = strlen (progname); baselen > 0; baselen--) |
3138 | if (IS_DIR_SEPARATOR (progname[baselen-1])) | |
37a4aa31 | 3139 | break; |
1d088dee | 3140 | new_argv0 = xmemdup (progname, baselen, |
37a4aa31 GK |
3141 | baselen + concat_length (new_version, new_machine, |
3142 | "-gcc-", NULL) + 1); | |
3143 | strcpy (new_argv0 + baselen, new_machine); | |
3144 | strcat (new_argv0, "-gcc-"); | |
3145 | strcat (new_argv0, new_version); | |
3146 | ||
ea16b5ee RS |
3147 | new_argv = xmemdup (argv, (argc + 1) * sizeof (argv[0]), |
3148 | (argc + 1) * sizeof (argv[0])); | |
37a4aa31 GK |
3149 | new_argv[0] = new_argv0; |
3150 | ||
3151 | execvp (new_argv0, new_argv); | |
ea16b5ee | 3152 | fatal ("couldn't run `%s': %s", new_argv0, xstrerror (errno)); |
37a4aa31 GK |
3153 | } |
3154 | ||
0deb20df TT |
3155 | /* Set up the default search paths. If there is no GCC_EXEC_PREFIX, |
3156 | see if we can create it from the pathname specified in argv[0]. */ | |
3157 | ||
a8ee6e2d | 3158 | gcc_libexec_prefix = standard_libexec_prefix; |
0deb20df TT |
3159 | #ifndef VMS |
3160 | /* FIXME: make_relative_prefix doesn't yet work for VMS. */ | |
3161 | if (!gcc_exec_prefix) | |
3162 | { | |
3163 | gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix, | |
3164 | standard_exec_prefix); | |
a8ee6e2d GK |
3165 | gcc_libexec_prefix = make_relative_prefix (argv[0], |
3166 | standard_bindir_prefix, | |
3167 | standard_libexec_prefix); | |
0deb20df | 3168 | if (gcc_exec_prefix) |
d4f2852f | 3169 | putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL)); |
0deb20df | 3170 | } |
a8ee6e2d GK |
3171 | else |
3172 | gcc_libexec_prefix = make_relative_prefix (gcc_exec_prefix, | |
3173 | standard_exec_prefix, | |
3174 | standard_libexec_prefix); | |
3175 | #else | |
0deb20df | 3176 | #endif |
ed1f651b | 3177 | |
8eebb258 | 3178 | if (gcc_exec_prefix) |
ed1f651b | 3179 | { |
6ed4bb9a | 3180 | int len = strlen (gcc_exec_prefix); |
c5c0b3d9 | 3181 | |
a8ee6e2d | 3182 | if (len > (int) sizeof ("/lib/gcc/") - 1 |
509781a4 | 3183 | && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1]))) |
6ed4bb9a | 3184 | { |
a8ee6e2d | 3185 | temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1; |
509781a4 | 3186 | if (IS_DIR_SEPARATOR (*temp) |
d25a45d4 | 3187 | && strncmp (temp + 1, "lib", 3) == 0 |
509781a4 | 3188 | && IS_DIR_SEPARATOR (temp[4]) |
c5ef564b | 3189 | && strncmp (temp + 5, "gcc", 3) == 0) |
a8ee6e2d | 3190 | len -= sizeof ("/lib/gcc/") - 1; |
6ed4bb9a MM |
3191 | } |
3192 | ||
3193 | set_std_prefix (gcc_exec_prefix, len); | |
a8ee6e2d | 3194 | add_prefix (&exec_prefixes, gcc_libexec_prefix, "GCC", |
5bbcd587 | 3195 | PREFIX_PRIORITY_LAST, 0, NULL, 0); |
922a4beb | 3196 | add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC", |
5bbcd587 | 3197 | PREFIX_PRIORITY_LAST, 0, NULL, 0); |
ed1f651b RS |
3198 | } |
3199 | ||
3200 | /* COMPILER_PATH and LIBRARY_PATH have values | |
3201 | that are lists of directory names with colons. */ | |
3202 | ||
2f8dd115 | 3203 | GET_ENVIRONMENT (temp, "COMPILER_PATH"); |
ed1f651b RS |
3204 | if (temp) |
3205 | { | |
878f32c3 | 3206 | const char *startp, *endp; |
703ad42b | 3207 | char *nstore = alloca (strlen (temp) + 3); |
ed1f651b RS |
3208 | |
3209 | startp = endp = temp; | |
3210 | while (1) | |
3211 | { | |
f6ec7e54 | 3212 | if (*endp == PATH_SEPARATOR || *endp == 0) |
ed1f651b | 3213 | { |
d25a45d4 | 3214 | strncpy (nstore, startp, endp - startp); |
ed1f651b | 3215 | if (endp == startp) |
d4f2852f | 3216 | strcpy (nstore, concat (".", dir_separator_str, NULL)); |
509781a4 | 3217 | else if (!IS_DIR_SEPARATOR (endp[-1])) |
ed1f651b | 3218 | { |
d25a45d4 KH |
3219 | nstore[endp - startp] = DIR_SEPARATOR; |
3220 | nstore[endp - startp + 1] = 0; | |
ed1f651b RS |
3221 | } |
3222 | else | |
d25a45d4 | 3223 | nstore[endp - startp] = 0; |
922a4beb | 3224 | add_prefix (&exec_prefixes, nstore, 0, |
5bbcd587 | 3225 | PREFIX_PRIORITY_LAST, 0, NULL, 0); |
aa32d841 | 3226 | add_prefix (&include_prefixes, |
d4f2852f | 3227 | concat (nstore, "include", NULL), |
5bbcd587 | 3228 | 0, PREFIX_PRIORITY_LAST, 0, NULL, 0); |
ed1f651b RS |
3229 | if (*endp == 0) |
3230 | break; | |
3231 | endp = startp = endp + 1; | |
3232 | } | |
3233 | else | |
3234 | endp++; | |
3235 | } | |
3236 | } | |
3237 | ||
2f8dd115 | 3238 | GET_ENVIRONMENT (temp, LIBRARY_PATH_ENV); |
fcc9ad83 | 3239 | if (temp && *cross_compile == '0') |
ed1f651b | 3240 | { |
878f32c3 | 3241 | const char *startp, *endp; |
703ad42b | 3242 | char *nstore = alloca (strlen (temp) + 3); |
ed1f651b RS |
3243 | |
3244 | startp = endp = temp; | |
3245 | while (1) | |
3246 | { | |
f6ec7e54 | 3247 | if (*endp == PATH_SEPARATOR || *endp == 0) |
ed1f651b | 3248 | { |
d25a45d4 | 3249 | strncpy (nstore, startp, endp - startp); |
ed1f651b | 3250 | if (endp == startp) |
d4f2852f | 3251 | strcpy (nstore, concat (".", dir_separator_str, NULL)); |
509781a4 | 3252 | else if (!IS_DIR_SEPARATOR (endp[-1])) |
ed1f651b | 3253 | { |
d25a45d4 KH |
3254 | nstore[endp - startp] = DIR_SEPARATOR; |
3255 | nstore[endp - startp + 1] = 0; | |
ed1f651b RS |
3256 | } |
3257 | else | |
d25a45d4 | 3258 | nstore[endp - startp] = 0; |
6496a589 | 3259 | add_prefix (&startfile_prefixes, nstore, NULL, |
5bbcd587 | 3260 | PREFIX_PRIORITY_LAST, 0, NULL, 1); |
ed1f651b RS |
3261 | if (*endp == 0) |
3262 | break; | |
3263 | endp = startp = endp + 1; | |
3264 | } | |
3265 | else | |
3266 | endp++; | |
3267 | } | |
3268 | } | |
3269 | ||
3270 | /* Use LPATH like LIBRARY_PATH (for the CMU build program). */ | |
2f8dd115 | 3271 | GET_ENVIRONMENT (temp, "LPATH"); |
fcc9ad83 | 3272 | if (temp && *cross_compile == '0') |
ed1f651b | 3273 | { |
878f32c3 | 3274 | const char *startp, *endp; |
703ad42b | 3275 | char *nstore = alloca (strlen (temp) + 3); |
ed1f651b RS |
3276 | |
3277 | startp = endp = temp; | |
3278 | while (1) | |
3279 | { | |
f6ec7e54 | 3280 | if (*endp == PATH_SEPARATOR || *endp == 0) |
ed1f651b | 3281 | { |
d25a45d4 | 3282 | strncpy (nstore, startp, endp - startp); |
ed1f651b | 3283 | if (endp == startp) |
d4f2852f | 3284 | strcpy (nstore, concat (".", dir_separator_str, NULL)); |
509781a4 | 3285 | else if (!IS_DIR_SEPARATOR (endp[-1])) |
ed1f651b | 3286 | { |
d25a45d4 KH |
3287 | nstore[endp - startp] = DIR_SEPARATOR; |
3288 | nstore[endp - startp + 1] = 0; | |
ed1f651b RS |
3289 | } |
3290 | else | |
d25a45d4 | 3291 | nstore[endp - startp] = 0; |
6496a589 | 3292 | add_prefix (&startfile_prefixes, nstore, NULL, |
5bbcd587 | 3293 | PREFIX_PRIORITY_LAST, 0, NULL, 1); |
ed1f651b RS |
3294 | if (*endp == 0) |
3295 | break; | |
3296 | endp = startp = endp + 1; | |
3297 | } | |
3298 | else | |
3299 | endp++; | |
3300 | } | |
3301 | } | |
3302 | ||
f2faf549 RS |
3303 | /* Convert new-style -- options to old-style. */ |
3304 | translate_options (&argc, &argv); | |
3305 | ||
610c62ac | 3306 | /* Do language-specific adjustment/addition of flags. */ |
9257393c | 3307 | lang_specific_driver (&argc, &argv, &added_libraries); |
610c62ac | 3308 | |
ed1f651b RS |
3309 | /* Scan argv twice. Here, the first time, just count how many switches |
3310 | there will be in their vector, and how many input files in theirs. | |
3311 | Here we also parse the switches that cc itself uses (e.g. -v). */ | |
3312 | ||
3313 | for (i = 1; i < argc; i++) | |
3314 | { | |
3315 | if (! strcmp (argv[i], "-dumpspecs")) | |
3316 | { | |
79aff5ac | 3317 | struct spec_list *sl; |
03fc1620 | 3318 | init_spec (); |
79aff5ac MM |
3319 | for (sl = specs; sl; sl = sl->next) |
3320 | printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec)); | |
d25a45d4 KH |
3321 | if (link_command_spec) |
3322 | printf ("*link_command:\n%s\n\n", link_command_spec); | |
ed1f651b RS |
3323 | exit (0); |
3324 | } | |
3325 | else if (! strcmp (argv[i], "-dumpversion")) | |
3326 | { | |
e5e809f4 | 3327 | printf ("%s\n", spec_version); |
ed1f651b RS |
3328 | exit (0); |
3329 | } | |
9b783fc9 RK |
3330 | else if (! strcmp (argv[i], "-dumpmachine")) |
3331 | { | |
3332 | printf ("%s\n", spec_machine); | |
d25a45d4 | 3333 | exit (0); |
9b783fc9 | 3334 | } |
3f595aa1 JM |
3335 | else if (strcmp (argv[i], "-fversion") == 0) |
3336 | { | |
3337 | /* translate_options () has turned --version into -fversion. */ | |
3338 | printf (_("%s (GCC) %s\n"), programname, version_string); | |
6cbeaa7e | 3339 | fputs (_("Copyright (C) 2003 Free Software Foundation, Inc.\n"), |
3f595aa1 JM |
3340 | stdout); |
3341 | fputs (_("This is free software; see the source for copying conditions. There is NO\n\ | |
3342 | warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"), | |
3343 | stdout); | |
3344 | exit (0); | |
3345 | } | |
b8468bc7 NC |
3346 | else if (strcmp (argv[i], "-fhelp") == 0) |
3347 | { | |
3348 | /* translate_options () has turned --help into -fhelp. */ | |
3349 | print_help_list = 1; | |
3350 | ||
3351 | /* We will be passing a dummy file on to the sub-processes. */ | |
3352 | n_infiles++; | |
3353 | n_switches++; | |
9218435e | 3354 | |
69927b59 NB |
3355 | /* CPP driver cannot obtain switch from cc1_options. */ |
3356 | if (is_cpp_driver) | |
3357 | add_preprocessor_option ("--help", 6); | |
b8468bc7 NC |
3358 | add_assembler_option ("--help", 6); |
3359 | add_linker_option ("--help", 6); | |
3360 | } | |
91606ce2 | 3361 | else if (strcmp (argv[i], "-ftarget-help") == 0) |
589005ff KH |
3362 | { |
3363 | /* translate_options() has turned --target-help into -ftarget-help. */ | |
3364 | target_help_flag = 1; | |
91606ce2 | 3365 | |
589005ff KH |
3366 | /* We will be passing a dummy file on to the sub-processes. */ |
3367 | n_infiles++; | |
3368 | n_switches++; | |
91606ce2 | 3369 | |
69927b59 NB |
3370 | /* CPP driver cannot obtain switch from cc1_options. */ |
3371 | if (is_cpp_driver) | |
3372 | add_preprocessor_option ("--target-help", 13); | |
589005ff KH |
3373 | add_assembler_option ("--target-help", 13); |
3374 | add_linker_option ("--target-help", 13); | |
3375 | } | |
14a774a9 RK |
3376 | else if (! strcmp (argv[i], "-pass-exit-codes")) |
3377 | { | |
3378 | pass_exit_codes = 1; | |
3379 | n_switches++; | |
3380 | } | |
2628b9d3 DE |
3381 | else if (! strcmp (argv[i], "-print-search-dirs")) |
3382 | print_search_dirs = 1; | |
2dcb563f | 3383 | else if (! strcmp (argv[i], "-print-libgcc-file-name")) |
2628b9d3 | 3384 | print_file_name = "libgcc.a"; |
6a9e290e | 3385 | else if (! strncmp (argv[i], "-print-file-name=", 17)) |
2628b9d3 | 3386 | print_file_name = argv[i] + 17; |
6a9e290e | 3387 | else if (! strncmp (argv[i], "-print-prog-name=", 17)) |
2628b9d3 | 3388 | print_prog_name = argv[i] + 17; |
60103a34 DE |
3389 | else if (! strcmp (argv[i], "-print-multi-lib")) |
3390 | print_multi_lib = 1; | |
3391 | else if (! strcmp (argv[i], "-print-multi-directory")) | |
3392 | print_multi_directory = 1; | |
5bbcd587 JJ |
3393 | else if (! strcmp (argv[i], "-print-multi-os-directory")) |
3394 | print_multi_os_directory = 1; | |
c9ebacb8 RS |
3395 | else if (! strncmp (argv[i], "-Wa,", 4)) |
3396 | { | |
3397 | int prev, j; | |
3398 | /* Pass the rest of this option to the assembler. */ | |
3399 | ||
c9ebacb8 RS |
3400 | /* Split the argument at commas. */ |
3401 | prev = 4; | |
3402 | for (j = 4; argv[i][j]; j++) | |
3403 | if (argv[i][j] == ',') | |
3404 | { | |
b8468bc7 | 3405 | add_assembler_option (argv[i] + prev, j - prev); |
c9ebacb8 RS |
3406 | prev = j + 1; |
3407 | } | |
9218435e | 3408 | |
c9ebacb8 | 3409 | /* Record the part after the last comma. */ |
b8468bc7 | 3410 | add_assembler_option (argv[i] + prev, j - prev); |
c9ebacb8 | 3411 | } |
57cb9b60 JW |
3412 | else if (! strncmp (argv[i], "-Wp,", 4)) |
3413 | { | |
3414 | int prev, j; | |
3415 | /* Pass the rest of this option to the preprocessor. */ | |
3416 | ||
57cb9b60 JW |
3417 | /* Split the argument at commas. */ |
3418 | prev = 4; | |
3419 | for (j = 4; argv[i][j]; j++) | |
3420 | if (argv[i][j] == ',') | |
3421 | { | |
b8468bc7 | 3422 | add_preprocessor_option (argv[i] + prev, j - prev); |
57cb9b60 JW |
3423 | prev = j + 1; |
3424 | } | |
9218435e | 3425 | |
57cb9b60 | 3426 | /* Record the part after the last comma. */ |
b8468bc7 | 3427 | add_preprocessor_option (argv[i] + prev, j - prev); |
57cb9b60 | 3428 | } |
301a5c0b | 3429 | else if (argv[i][0] == '+' && argv[i][1] == 'e') |
f2faf549 | 3430 | /* The +e options to the C++ front-end. */ |
301a5c0b | 3431 | n_switches++; |
368dfd3a | 3432 | else if (strncmp (argv[i], "-Wl,", 4) == 0) |
9b226f90 TG |
3433 | { |
3434 | int j; | |
3435 | /* Split the argument at commas. */ | |
3436 | for (j = 3; argv[i][j]; j++) | |
3437 | n_infiles += (argv[i][j] == ','); | |
3438 | } | |
368dfd3a TG |
3439 | else if (strcmp (argv[i], "-Xlinker") == 0) |
3440 | { | |
3441 | if (i + 1 == argc) | |
3442 | fatal ("argument to `-Xlinker' is missing"); | |
3443 | ||
4275c4c4 JS |
3444 | n_infiles++; |
3445 | i++; | |
3446 | } | |
4977bab6 ZW |
3447 | else if (strcmp (argv[i], "-Xpreprocessor") == 0) |
3448 | { | |
3449 | if (i + 1 == argc) | |
3450 | fatal ("argument to `-Xpreprocessor' is missing"); | |
3451 | ||
3452 | add_preprocessor_option (argv[i+1], strlen (argv[i+1])); | |
3453 | } | |
3454 | else if (strcmp (argv[i], "-Xassembler") == 0) | |
3455 | { | |
3456 | if (i + 1 == argc) | |
3457 | fatal ("argument to `-Xassembler' is missing"); | |
3458 | ||
3459 | add_assembler_option (argv[i+1], strlen (argv[i+1])); | |
3460 | } | |
4275c4c4 JS |
3461 | else if (strcmp (argv[i], "-l") == 0) |
3462 | { | |
3463 | if (i + 1 == argc) | |
3464 | fatal ("argument to `-l' is missing"); | |
3465 | ||
368dfd3a TG |
3466 | n_infiles++; |
3467 | i++; | |
3468 | } | |
3469 | else if (strncmp (argv[i], "-l", 2) == 0) | |
3470 | n_infiles++; | |
3a265431 DE |
3471 | else if (strcmp (argv[i], "-save-temps") == 0) |
3472 | { | |
3473 | save_temps_flag = 1; | |
3474 | n_switches++; | |
3475 | } | |
d9ac3a07 MM |
3476 | else if (strcmp (argv[i], "-specs") == 0) |
3477 | { | |
703ad42b | 3478 | struct user_specs *user = xmalloc (sizeof (struct user_specs)); |
d9ac3a07 MM |
3479 | if (++i >= argc) |
3480 | fatal ("argument to `-specs' is missing"); | |
3481 | ||
9218435e | 3482 | user->next = (struct user_specs *) 0; |
d9ac3a07 MM |
3483 | user->filename = argv[i]; |
3484 | if (user_specs_tail) | |
3485 | user_specs_tail->next = user; | |
3486 | else | |
3487 | user_specs_head = user; | |
3488 | user_specs_tail = user; | |
3489 | } | |
3490 | else if (strncmp (argv[i], "-specs=", 7) == 0) | |
3491 | { | |
703ad42b | 3492 | struct user_specs *user = xmalloc (sizeof (struct user_specs)); |
d9ac3a07 MM |
3493 | if (strlen (argv[i]) == 7) |
3494 | fatal ("argument to `-specs=' is missing"); | |
3495 | ||
9218435e | 3496 | user->next = (struct user_specs *) 0; |
d25a45d4 | 3497 | user->filename = argv[i] + 7; |
d9ac3a07 MM |
3498 | if (user_specs_tail) |
3499 | user_specs_tail->next = user; | |
3500 | else | |
3501 | user_specs_head = user; | |
3502 | user_specs_tail = user; | |
3503 | } | |
03c41c05 ZW |
3504 | else if (strcmp (argv[i], "-time") == 0) |
3505 | report_times = 1; | |
4977bab6 ZW |
3506 | else if (strcmp (argv[i], "-pipe") == 0) |
3507 | { | |
3508 | /* -pipe has to go into the switches array as well as | |
3509 | setting a flag. */ | |
3510 | use_pipes = 1; | |
3511 | n_switches++; | |
3512 | } | |
99f78cdd IR |
3513 | else if (strcmp (argv[i], "-###") == 0) |
3514 | { | |
3515 | /* This is similar to -v except that there is no execution | |
3516 | of the commands and the echoed arguments are quoted. It | |
3517 | is intended for use in shell scripts to capture the | |
3518 | driver-generated command line. */ | |
3519 | verbose_only_flag++; | |
3520 | verbose_flag++; | |
3521 | } | |
368dfd3a | 3522 | else if (argv[i][0] == '-' && argv[i][1] != 0) |
ed1f651b | 3523 | { |
b3694847 SS |
3524 | const char *p = &argv[i][1]; |
3525 | int c = *p; | |
ed1f651b RS |
3526 | |
3527 | switch (c) | |
3528 | { | |
3529 | case 'b': | |
37a4aa31 GK |
3530 | case 'V': |
3531 | fatal ("`-%c' must come at the start of the command line", c); | |
ed1f651b RS |
3532 | break; |
3533 | ||
3534 | case 'B': | |
3535 | { | |
fbd40359 | 3536 | const char *value; |
07804c3b NC |
3537 | int len; |
3538 | ||
ed1f651b RS |
3539 | if (p[1] == 0 && i + 1 == argc) |
3540 | fatal ("argument to `-B' is missing"); | |
3541 | if (p[1] == 0) | |
3542 | value = argv[++i]; | |
3543 | else | |
3544 | value = p + 1; | |
07804c3b NC |
3545 | |
3546 | len = strlen (value); | |
3547 | ||
3548 | /* Catch the case where the user has forgotten to append a | |
cc712abf | 3549 | directory separator to the path. Note, they may be using |
07804c3b NC |
3550 | -B to add an executable name prefix, eg "i386-elf-", in |
3551 | order to distinguish between multiple installations of | |
3552 | GCC in the same directory. Hence we must check to see | |
3553 | if appending a directory separator actually makes a | |
3554 | valid directory name. */ | |
3555 | if (! IS_DIR_SEPARATOR (value [len - 1]) | |
3556 | && is_directory (value, "", 0)) | |
3557 | { | |
bbed13b1 KG |
3558 | char *tmp = xmalloc (len + 2); |
3559 | strcpy (tmp, value); | |
3560 | tmp[len] = DIR_SEPARATOR; | |
3561 | tmp[++ len] = 0; | |
3562 | value = tmp; | |
07804c3b | 3563 | } |
589005ff | 3564 | |
07804c3b NC |
3565 | /* As a kludge, if the arg is "[foo/]stageN/", just |
3566 | add "[foo/]include" to the include prefix. */ | |
3567 | if ((len == 7 | |
3568 | || (len > 7 | |
3569 | && (IS_DIR_SEPARATOR (value[len - 8])))) | |
3570 | && strncmp (value + len - 7, "stage", 5) == 0 | |
3571 | && ISDIGIT (value[len - 2]) | |
3572 | && (IS_DIR_SEPARATOR (value[len - 1]))) | |
3573 | { | |
3574 | if (len == 7) | |
3575 | add_prefix (&include_prefixes, "include", NULL, | |
5bbcd587 | 3576 | PREFIX_PRIORITY_B_OPT, 0, NULL, 0); |
07804c3b NC |
3577 | else |
3578 | { | |
3579 | char * string = xmalloc (len + 1); | |
3580 | ||
3581 | strncpy (string, value, len - 7); | |
3582 | strcpy (string + len - 7, "include"); | |
3583 | add_prefix (&include_prefixes, string, NULL, | |
5bbcd587 | 3584 | PREFIX_PRIORITY_B_OPT, 0, NULL, 0); |
07804c3b NC |
3585 | } |
3586 | } | |
3587 | ||
6496a589 | 3588 | add_prefix (&exec_prefixes, value, NULL, |
5bbcd587 | 3589 | PREFIX_PRIORITY_B_OPT, 0, &warn_B, 0); |
6496a589 | 3590 | add_prefix (&startfile_prefixes, value, NULL, |
5bbcd587 | 3591 | PREFIX_PRIORITY_B_OPT, 0, &warn_B, 0); |
d4f2852f | 3592 | add_prefix (&include_prefixes, concat (value, "include", NULL), |
5bbcd587 | 3593 | NULL, PREFIX_PRIORITY_B_OPT, 0, NULL, 0); |
d25a45d4 | 3594 | n_switches++; |
ed1f651b RS |
3595 | } |
3596 | break; | |
3597 | ||
3598 | case 'v': /* Print our subcommands and print versions. */ | |
ed1f651b | 3599 | n_switches++; |
8436fe35 RS |
3600 | /* If they do anything other than exactly `-v', don't set |
3601 | verbose_flag; rather, continue on to give the error. */ | |
3602 | if (p[1] != 0) | |
3603 | break; | |
3604 | verbose_flag++; | |
ed1f651b RS |
3605 | break; |
3606 | ||
88117d44 | 3607 | case 'S': |
3a265431 DE |
3608 | case 'c': |
3609 | if (p[1] == 0) | |
ed1f651b | 3610 | { |
3a265431 | 3611 | have_c = 1; |
8eebb258 | 3612 | n_switches++; |
ed1f651b RS |
3613 | break; |
3614 | } | |
5fc08cad | 3615 | goto normal_switch; |
f2cf3e1e | 3616 | |
f2cf3e1e RK |
3617 | case 'o': |
3618 | have_o = 1; | |
45936a85 | 3619 | #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) |
88117d44 NC |
3620 | if (! have_c) |
3621 | { | |
3622 | int skip; | |
9218435e | 3623 | |
88117d44 NC |
3624 | /* Forward scan, just in case -S or -c is specified |
3625 | after -o. */ | |
3626 | int j = i + 1; | |
3627 | if (p[1] == 0) | |
3628 | ++j; | |
3629 | while (j < argc) | |
3630 | { | |
3631 | if (argv[j][0] == '-') | |
3632 | { | |
3633 | if (SWITCH_CURTAILS_COMPILATION (argv[j][1]) | |
3634 | && argv[j][2] == 0) | |
3635 | { | |
3636 | have_c = 1; | |
3637 | break; | |
3638 | } | |
caa297fe | 3639 | else if ((skip = SWITCH_TAKES_ARG (argv[j][1]))) |
88117d44 | 3640 | j += skip - (argv[j][2] != 0); |
caa297fe | 3641 | else if ((skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1))) |
88117d44 NC |
3642 | j += skip; |
3643 | } | |
3644 | j++; | |
3645 | } | |
3646 | } | |
3647 | #endif | |
45936a85 | 3648 | #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX) |
853e0b2d | 3649 | if (p[1] == 0) |
a9657ce8 | 3650 | argv[i + 1] = convert_filename (argv[i + 1], ! have_c, 0); |
88117d44 | 3651 | else |
a9657ce8 | 3652 | argv[i] = convert_filename (argv[i], ! have_c, 0); |
853e0b2d | 3653 | #endif |
5fc08cad | 3654 | goto normal_switch; |
f2cf3e1e | 3655 | |
ed1f651b | 3656 | default: |
5fc08cad | 3657 | normal_switch: |
dc36ec2c RK |
3658 | |
3659 | #ifdef MODIFY_TARGET_NAME | |
3660 | is_modify_target_name = 0; | |
3661 | ||
ca7558fc | 3662 | for (j = 0; j < ARRAY_SIZE (modify_target); j++) |
dc36ec2c RK |
3663 | if (! strcmp (argv[i], modify_target[j].sw)) |
3664 | { | |
703ad42b KG |
3665 | char *new_name = xmalloc (strlen (modify_target[j].str) |
3666 | + strlen (spec_machine)); | |
dc36ec2c RK |
3667 | const char *p, *r; |
3668 | char *q; | |
3669 | int made_addition = 0; | |
3670 | ||
3671 | is_modify_target_name = 1; | |
3672 | for (p = spec_machine, q = new_name; *p != 0; ) | |
3673 | { | |
3674 | if (modify_target[j].add_del == DELETE | |
3675 | && (! strncmp (q, modify_target[j].str, | |
3676 | strlen (modify_target[j].str)))) | |
3677 | p += strlen (modify_target[j].str); | |
3678 | else if (modify_target[j].add_del == ADD | |
3679 | && ! made_addition && *p == '-') | |
3680 | { | |
3681 | for (r = modify_target[j].str; *r != 0; ) | |
3682 | *q++ = *r++; | |
3683 | made_addition = 1; | |
3684 | } | |
3685 | ||
3686 | *q++ = *p++; | |
3687 | } | |
3688 | ||
3689 | spec_machine = new_name; | |
3690 | } | |
3691 | ||
3692 | if (is_modify_target_name) | |
3693 | break; | |
589005ff | 3694 | #endif |
dc36ec2c | 3695 | |
ed1f651b RS |
3696 | n_switches++; |
3697 | ||
3698 | if (SWITCH_TAKES_ARG (c) > (p[1] != 0)) | |
3699 | i += SWITCH_TAKES_ARG (c) - (p[1] != 0); | |
3700 | else if (WORD_SWITCH_TAKES_ARG (p)) | |
3701 | i += WORD_SWITCH_TAKES_ARG (p); | |
3702 | } | |
3703 | } | |
3704 | else | |
3a265431 DE |
3705 | { |
3706 | n_infiles++; | |
3707 | lang_n_infiles++; | |
3708 | } | |
ed1f651b RS |
3709 | } |
3710 | ||
d1bd0ded | 3711 | combine_inputs = (have_c && have_o && lang_n_infiles > 1); |
f2cf3e1e | 3712 | |
4977bab6 ZW |
3713 | if ((save_temps_flag || report_times) && use_pipes) |
3714 | { | |
3715 | /* -save-temps overrides -pipe, so that temp files are produced */ | |
3716 | if (save_temps_flag) | |
3717 | error ("warning: -pipe ignored because -save-temps specified"); | |
3718 | /* -time overrides -pipe because we can't get correct stats when | |
3719 | multiple children are running at once. */ | |
3720 | else if (report_times) | |
3721 | error ("warning: -pipe ignored because -time specified"); | |
3722 | ||
3723 | use_pipes = 0; | |
3724 | } | |
1d088dee | 3725 | |
ed1f651b RS |
3726 | /* Set up the search paths before we go looking for config files. */ |
3727 | ||
3728 | /* These come before the md prefixes so that we will find gcc's subcommands | |
3729 | (such as cpp) rather than those of the host system. */ | |
ae04227b CH |
3730 | /* Use 2 as fourth arg meaning try just the machine as a suffix, |
3731 | as well as trying the machine and the version. */ | |
48ff801b | 3732 | #ifndef OS2 |
a8ee6e2d | 3733 | add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC", |
5bbcd587 | 3734 | PREFIX_PRIORITY_LAST, 1, warn_std_ptr, 0); |
a8ee6e2d GK |
3735 | add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS", |
3736 | PREFIX_PRIORITY_LAST, 2, warn_std_ptr, 0); | |
e9a25f70 | 3737 | add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS", |
5bbcd587 | 3738 | PREFIX_PRIORITY_LAST, 2, warn_std_ptr, 0); |
e9a25f70 | 3739 | add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS", |
5bbcd587 | 3740 | PREFIX_PRIORITY_LAST, 2, warn_std_ptr, 0); |
a8ee6e2d GK |
3741 | add_prefix (&exec_prefixes, standard_exec_prefix_2, "BINUTILS", |
3742 | PREFIX_PRIORITY_LAST, 2, warn_std_ptr, 0); | |
48ff801b | 3743 | #endif |
ed1f651b | 3744 | |
e9a25f70 | 3745 | add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS", |
5bbcd587 | 3746 | PREFIX_PRIORITY_LAST, 1, warn_std_ptr, 0); |
a8ee6e2d | 3747 | add_prefix (&startfile_prefixes, standard_exec_prefix_2, "BINUTILS", |
5bbcd587 | 3748 | PREFIX_PRIORITY_LAST, 1, warn_std_ptr, 0); |
ed1f651b | 3749 | |
9218435e | 3750 | tooldir_prefix = concat (tooldir_base_prefix, spec_machine, |
d4f2852f | 3751 | dir_separator_str, NULL); |
c648ab8a | 3752 | |
48ff801b | 3753 | /* If tooldir is relative, base it on exec_prefixes. A relative |
c648ab8a RS |
3754 | tooldir lets us move the installed tree as a unit. |
3755 | ||
3756 | If GCC_EXEC_PREFIX is defined, then we want to add two relative | |
3757 | directories, so that we can search both the user specified directory | |
3758 | and the standard place. */ | |
3759 | ||
3dce1408 | 3760 | if (!IS_ABSOLUTE_PATH (tooldir_prefix)) |
c648ab8a RS |
3761 | { |
3762 | if (gcc_exec_prefix) | |
3763 | { | |
3764 | char *gcc_exec_tooldir_prefix | |
6aa62cff | 3765 | = concat (gcc_exec_prefix, spec_machine, dir_separator_str, |
d4f2852f | 3766 | spec_version, dir_separator_str, tooldir_prefix, NULL); |
c648ab8a | 3767 | |
48ff801b | 3768 | add_prefix (&exec_prefixes, |
9218435e | 3769 | concat (gcc_exec_tooldir_prefix, "bin", |
d4f2852f | 3770 | dir_separator_str, NULL), |
5bbcd587 | 3771 | NULL, PREFIX_PRIORITY_LAST, 0, NULL, 0); |
48ff801b | 3772 | add_prefix (&startfile_prefixes, |
9218435e | 3773 | concat (gcc_exec_tooldir_prefix, "lib", |
d4f2852f | 3774 | dir_separator_str, NULL), |
5bbcd587 | 3775 | NULL, PREFIX_PRIORITY_LAST, 0, NULL, 1); |
c648ab8a RS |
3776 | } |
3777 | ||
6aa62cff | 3778 | tooldir_prefix = concat (standard_exec_prefix, spec_machine, |
9218435e | 3779 | dir_separator_str, spec_version, |
d4f2852f | 3780 | dir_separator_str, tooldir_prefix, NULL); |
c648ab8a RS |
3781 | } |
3782 | ||
9218435e | 3783 | add_prefix (&exec_prefixes, |
d4f2852f | 3784 | concat (tooldir_prefix, "bin", dir_separator_str, NULL), |
5bbcd587 | 3785 | "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL, 0); |
48ff801b | 3786 | add_prefix (&startfile_prefixes, |
d4f2852f | 3787 | concat (tooldir_prefix, "lib", dir_separator_str, NULL), |
5bbcd587 | 3788 | "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL, 1); |
f18fd956 | 3789 | |
047d636f DJ |
3790 | #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS) |
3791 | /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix, | |
3792 | then consider it to relocate with the rest of the GCC installation | |
3793 | if GCC_EXEC_PREFIX is set. | |
3794 | ``make_relative_prefix'' is not compiled for VMS, so don't call it. */ | |
4977bab6 ZW |
3795 | if (target_system_root && gcc_exec_prefix) |
3796 | { | |
3797 | char *tmp_prefix = make_relative_prefix (argv[0], | |
3798 | standard_bindir_prefix, | |
3799 | target_system_root); | |
3800 | if (tmp_prefix && access_check (tmp_prefix, F_OK) == 0) | |
047d636f DJ |
3801 | { |
3802 | target_system_root = tmp_prefix; | |
3803 | target_system_root_changed = 1; | |
3804 | } | |
4977bab6 | 3805 | } |
047d636f | 3806 | #endif |
4977bab6 | 3807 | |
004fd4d5 RS |
3808 | /* More prefixes are enabled in main, after we read the specs file |
3809 | and determine whether this is cross-compilation or not. */ | |
ed1f651b | 3810 | |
ed1f651b RS |
3811 | /* Then create the space for the vectors and scan again. */ |
3812 | ||
703ad42b KG |
3813 | switches = xmalloc ((n_switches + 1) * sizeof (struct switchstr)); |
3814 | infiles = xmalloc ((n_infiles + 1) * sizeof (struct infile)); | |
ed1f651b RS |
3815 | n_switches = 0; |
3816 | n_infiles = 0; | |
3817 | last_language_n_infiles = -1; | |
3818 | ||
3819 | /* This, time, copy the text of each switch and store a pointer | |
3820 | to the copy in the vector of switches. | |
3821 | Store all the infiles in their vector. */ | |
3822 | ||
3823 | for (i = 1; i < argc; i++) | |
3824 | { | |
2ef32c88 | 3825 | /* Just skip the switches that were handled by the preceding loop. */ |
dc36ec2c RK |
3826 | #ifdef MODIFY_TARGET_NAME |
3827 | is_modify_target_name = 0; | |
3828 | ||
ca7558fc | 3829 | for (j = 0; j < ARRAY_SIZE (modify_target); j++) |
dc36ec2c RK |
3830 | if (! strcmp (argv[i], modify_target[j].sw)) |
3831 | is_modify_target_name = 1; | |
3832 | ||
3833 | if (is_modify_target_name) | |
3834 | ; | |
3835 | else | |
3836 | #endif | |
368dfd3a | 3837 | if (! strncmp (argv[i], "-Wa,", 4)) |
2ef32c88 | 3838 | ; |
57cb9b60 JW |
3839 | else if (! strncmp (argv[i], "-Wp,", 4)) |
3840 | ; | |
14a774a9 RK |
3841 | else if (! strcmp (argv[i], "-pass-exit-codes")) |
3842 | ; | |
2628b9d3 DE |
3843 | else if (! strcmp (argv[i], "-print-search-dirs")) |
3844 | ; | |
2dcb563f | 3845 | else if (! strcmp (argv[i], "-print-libgcc-file-name")) |
2ef32c88 | 3846 | ; |
6a9e290e RK |
3847 | else if (! strncmp (argv[i], "-print-file-name=", 17)) |
3848 | ; | |
3849 | else if (! strncmp (argv[i], "-print-prog-name=", 17)) | |
3850 | ; | |
60103a34 DE |
3851 | else if (! strcmp (argv[i], "-print-multi-lib")) |
3852 | ; | |
3853 | else if (! strcmp (argv[i], "-print-multi-directory")) | |
3854 | ; | |
5bbcd587 JJ |
3855 | else if (! strcmp (argv[i], "-print-multi-os-directory")) |
3856 | ; | |
69927b59 NB |
3857 | else if (! strcmp (argv[i], "-ftarget-help")) |
3858 | ; | |
3859 | else if (! strcmp (argv[i], "-fhelp")) | |
3860 | ; | |
cc6fc442 RS |
3861 | else if (argv[i][0] == '+' && argv[i][1] == 'e') |
3862 | { | |
3863 | /* Compensate for the +e options to the C++ front-end; | |
a1c37766 | 3864 | they're there simply for cfront call-compatibility. We do |
cc6fc442 RS |
3865 | some magic in default_compilers to pass them down properly. |
3866 | Note we deliberately start at the `+' here, to avoid passing | |
3867 | -e0 or -e1 down into the linker. */ | |
3868 | switches[n_switches].part1 = &argv[i][0]; | |
3869 | switches[n_switches].args = 0; | |
8097c429 | 3870 | switches[n_switches].live_cond = SWITCH_OK; |
ab87f8c8 | 3871 | switches[n_switches].validated = 0; |
cc6fc442 RS |
3872 | n_switches++; |
3873 | } | |
368dfd3a TG |
3874 | else if (strncmp (argv[i], "-Wl,", 4) == 0) |
3875 | { | |
9b226f90 TG |
3876 | int prev, j; |
3877 | /* Split the argument at commas. */ | |
3878 | prev = 4; | |
3879 | for (j = 4; argv[i][j]; j++) | |
3880 | if (argv[i][j] == ',') | |
3881 | { | |
e5e809f4 | 3882 | infiles[n_infiles].language = "*"; |
9b226f90 TG |
3883 | infiles[n_infiles++].name |
3884 | = save_string (argv[i] + prev, j - prev); | |
3885 | prev = j + 1; | |
3886 | } | |
3887 | /* Record the part after the last comma. */ | |
e5e809f4 | 3888 | infiles[n_infiles].language = "*"; |
9b226f90 | 3889 | infiles[n_infiles++].name = argv[i] + prev; |
368dfd3a TG |
3890 | } |
3891 | else if (strcmp (argv[i], "-Xlinker") == 0) | |
3892 | { | |
e5e809f4 | 3893 | infiles[n_infiles].language = "*"; |
368dfd3a TG |
3894 | infiles[n_infiles++].name = argv[++i]; |
3895 | } | |
4977bab6 ZW |
3896 | else if (strcmp (argv[i], "-Xassembler") == 0) |
3897 | { | |
3898 | infiles[n_infiles].language = "*"; | |
3899 | infiles[n_infiles++].name = argv[++i]; | |
3900 | } | |
3901 | else if (strcmp (argv[i], "-Xpreprocessor") == 0) | |
3902 | { | |
3903 | infiles[n_infiles].language = "*"; | |
3904 | infiles[n_infiles++].name = argv[++i]; | |
3905 | } | |
4275c4c4 JS |
3906 | else if (strcmp (argv[i], "-l") == 0) |
3907 | { /* POSIX allows separation of -l and the lib arg; | |
3908 | canonicalize by concatenating -l with its arg */ | |
3909 | infiles[n_infiles].language = "*"; | |
d4f2852f | 3910 | infiles[n_infiles++].name = concat ("-l", argv[++i], NULL); |
4275c4c4 | 3911 | } |
368dfd3a TG |
3912 | else if (strncmp (argv[i], "-l", 2) == 0) |
3913 | { | |
e5e809f4 | 3914 | infiles[n_infiles].language = "*"; |
368dfd3a TG |
3915 | infiles[n_infiles++].name = argv[i]; |
3916 | } | |
d9ac3a07 MM |
3917 | else if (strcmp (argv[i], "-specs") == 0) |
3918 | i++; | |
3919 | else if (strncmp (argv[i], "-specs=", 7) == 0) | |
3920 | ; | |
03c41c05 ZW |
3921 | else if (strcmp (argv[i], "-time") == 0) |
3922 | ; | |
99f78cdd IR |
3923 | else if (strcmp (argv[i], "-###") == 0) |
3924 | ; | |
368dfd3a | 3925 | else if (argv[i][0] == '-' && argv[i][1] != 0) |
ed1f651b | 3926 | { |
fbd40359 ZW |
3927 | const char *p = &argv[i][1]; |
3928 | int c = *p; | |
ed1f651b | 3929 | |
ed1f651b RS |
3930 | if (c == 'x') |
3931 | { | |
3932 | if (p[1] == 0 && i + 1 == argc) | |
3933 | fatal ("argument to `-x' is missing"); | |
3934 | if (p[1] == 0) | |
3935 | spec_lang = argv[++i]; | |
3936 | else | |
3937 | spec_lang = p + 1; | |
3938 | if (! strcmp (spec_lang, "none")) | |
34dd3838 RK |
3939 | /* Suppress the warning if -xnone comes after the last input |
3940 | file, because alternate command interfaces like g++ might | |
3941 | find it useful to place -xnone after each input file. */ | |
ed1f651b RS |
3942 | spec_lang = 0; |
3943 | else | |
3944 | last_language_n_infiles = n_infiles; | |
3945 | continue; | |
3946 | } | |
3947 | switches[n_switches].part1 = p; | |
3948 | /* Deal with option arguments in separate argv elements. */ | |
3949 | if ((SWITCH_TAKES_ARG (c) > (p[1] != 0)) | |
14553b75 RS |
3950 | || WORD_SWITCH_TAKES_ARG (p)) |
3951 | { | |
3952 | int j = 0; | |
3953 | int n_args = WORD_SWITCH_TAKES_ARG (p); | |
ed1f651b | 3954 | |
14553b75 RS |
3955 | if (n_args == 0) |
3956 | { | |
3957 | /* Count only the option arguments in separate argv elements. */ | |
3958 | n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0); | |
3959 | } | |
3960 | if (i + n_args >= argc) | |
3961 | fatal ("argument to `-%s' is missing", p); | |
3962 | switches[n_switches].args | |
703ad42b | 3963 | = xmalloc ((n_args + 1) * sizeof(const char *)); |
14553b75 RS |
3964 | while (j < n_args) |
3965 | switches[n_switches].args[j++] = argv[++i]; | |
3966 | /* Null-terminate the vector. */ | |
3967 | switches[n_switches].args[j] = 0; | |
ed1f651b | 3968 | } |
9473c522 | 3969 | else if (strchr (switches_need_spaces, c)) |
14553b75 | 3970 | { |
bb9da768 RK |
3971 | /* On some systems, ld cannot handle some options without |
3972 | a space. So split the option from its argument. */ | |
703ad42b | 3973 | char *part1 = xmalloc (2); |
bb9da768 RK |
3974 | part1[0] = c; |
3975 | part1[1] = '\0'; | |
9218435e | 3976 | |
bb9da768 | 3977 | switches[n_switches].part1 = part1; |
703ad42b | 3978 | switches[n_switches].args = xmalloc (2 * sizeof (const char *)); |
cb6edbcb | 3979 | switches[n_switches].args[0] = xstrdup (p+1); |
14553b75 RS |
3980 | switches[n_switches].args[1] = 0; |
3981 | } | |
3982 | else | |
ed1f651b | 3983 | switches[n_switches].args = 0; |
f5b0eb4e | 3984 | |
8097c429 | 3985 | switches[n_switches].live_cond = SWITCH_OK; |
ab87f8c8 | 3986 | switches[n_switches].validated = 0; |
9c1fcbfb | 3987 | switches[n_switches].ordering = 0; |
4977bab6 | 3988 | /* These are always valid, since gcc.c itself understands them. */ |
9db0819e RH |
3989 | if (!strcmp (p, "save-temps") |
3990 | || !strcmp (p, "static-libgcc") | |
4977bab6 ZW |
3991 | || !strcmp (p, "shared-libgcc") |
3992 | || !strcmp (p, "pipe")) | |
ab87f8c8 | 3993 | switches[n_switches].validated = 1; |
d25a45d4 KH |
3994 | else |
3995 | { | |
3996 | char ch = switches[n_switches].part1[0]; | |
37a4aa31 | 3997 | if (ch == 'B') |
d25a45d4 KH |
3998 | switches[n_switches].validated = 1; |
3999 | } | |
ed1f651b RS |
4000 | n_switches++; |
4001 | } | |
4002 | else | |
4003 | { | |
45936a85 | 4004 | #ifdef HAVE_TARGET_OBJECT_SUFFIX |
a9657ce8 | 4005 | argv[i] = convert_filename (argv[i], 0, access (argv[i], F_OK)); |
f70165f6 RK |
4006 | #endif |
4007 | ||
7257bbc6 | 4008 | if (strcmp (argv[i], "-") != 0 && access (argv[i], F_OK) < 0) |
48fb792a BK |
4009 | { |
4010 | perror_with_name (argv[i]); | |
4011 | error_count++; | |
4012 | } | |
4013 | else | |
4014 | { | |
4015 | infiles[n_infiles].language = spec_lang; | |
4016 | infiles[n_infiles++].name = argv[i]; | |
4017 | } | |
ed1f651b RS |
4018 | } |
4019 | } | |
4020 | ||
fa0d5369 | 4021 | if (n_infiles == last_language_n_infiles && spec_lang != 0) |
c725bd79 | 4022 | error ("warning: `-x %s' after last input file has no effect", spec_lang); |
ed1f651b | 4023 | |
69927b59 NB |
4024 | /* Ensure we only invoke each subprocess once. */ |
4025 | if (target_help_flag || print_help_list) | |
4026 | { | |
4027 | n_infiles = 1; | |
4028 | ||
4029 | /* Create a dummy input file, so that we can pass --target-help on to | |
4030 | the various sub-processes. */ | |
4031 | infiles[0].language = "c"; | |
4032 | infiles[0].name = "help-dummy"; | |
4033 | ||
4034 | if (target_help_flag) | |
4035 | { | |
4036 | switches[n_switches].part1 = "--target-help"; | |
4037 | switches[n_switches].args = 0; | |
4038 | switches[n_switches].live_cond = SWITCH_OK; | |
4039 | switches[n_switches].validated = 0; | |
4040 | ||
4041 | n_switches++; | |
4042 | } | |
4043 | ||
4044 | if (print_help_list) | |
4045 | { | |
4046 | switches[n_switches].part1 = "--help"; | |
4047 | switches[n_switches].args = 0; | |
4048 | switches[n_switches].live_cond = SWITCH_OK; | |
4049 | switches[n_switches].validated = 0; | |
4050 | ||
4051 | n_switches++; | |
4052 | } | |
4053 | } | |
4054 | ||
ed1f651b RS |
4055 | switches[n_switches].part1 = 0; |
4056 | infiles[n_infiles].name = 0; | |
4057 | } | |
b856c15d | 4058 | |
4977bab6 | 4059 | /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS |
b856c15d RO |
4060 | and place that in the environment. */ |
4061 | ||
4062 | static void | |
1d088dee | 4063 | set_collect_gcc_options (void) |
b856c15d RO |
4064 | { |
4065 | int i; | |
4066 | int first_time; | |
4067 | ||
4068 | /* Build COLLECT_GCC_OPTIONS to have all of the options specified to | |
4069 | the compiler. */ | |
4070 | obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=", | |
4071 | sizeof ("COLLECT_GCC_OPTIONS=") - 1); | |
4072 | ||
4073 | first_time = TRUE; | |
4074 | for (i = 0; (int) i < n_switches; i++) | |
4075 | { | |
4076 | const char *const *args; | |
4077 | const char *p, *q; | |
4078 | if (!first_time) | |
4079 | obstack_grow (&collect_obstack, " ", 1); | |
4080 | ||
4081 | first_time = FALSE; | |
4082 | ||
4083 | /* Ignore elided switches. */ | |
4084 | if (switches[i].live_cond == SWITCH_IGNORE) | |
4085 | continue; | |
4086 | ||
4087 | obstack_grow (&collect_obstack, "'-", 2); | |
4088 | q = switches[i].part1; | |
4089 | while ((p = strchr (q, '\''))) | |
4090 | { | |
4091 | obstack_grow (&collect_obstack, q, p - q); | |
4092 | obstack_grow (&collect_obstack, "'\\''", 4); | |
4093 | q = ++p; | |
4094 | } | |
4095 | obstack_grow (&collect_obstack, q, strlen (q)); | |
4096 | obstack_grow (&collect_obstack, "'", 1); | |
4097 | ||
4098 | for (args = switches[i].args; args && *args; args++) | |
4099 | { | |
4100 | obstack_grow (&collect_obstack, " '", 2); | |
4101 | q = *args; | |
4102 | while ((p = strchr (q, '\''))) | |
4103 | { | |
4104 | obstack_grow (&collect_obstack, q, p - q); | |
4105 | obstack_grow (&collect_obstack, "'\\''", 4); | |
4106 | q = ++p; | |
4107 | } | |
4108 | obstack_grow (&collect_obstack, q, strlen (q)); | |
4109 | obstack_grow (&collect_obstack, "'", 1); | |
4110 | } | |
4111 | } | |
4112 | obstack_grow (&collect_obstack, "\0", 1); | |
4113 | putenv (obstack_finish (&collect_obstack)); | |
4114 | } | |
ed1f651b RS |
4115 | \f |
4116 | /* Process a spec string, accumulating and running commands. */ | |
4117 | ||
4118 | /* These variables describe the input file name. | |
4119 | input_file_number is the index on outfiles of this file, | |
4120 | so that the output file name can be stored for later use by %o. | |
4121 | input_basename is the start of the part of the input file | |
4122 | sans all directory names, and basename_length is the number | |
4123 | of characters starting there excluding the suffix .c or whatever. */ | |
4124 | ||
070588f0 | 4125 | static const char *input_filename; |
ed1f651b | 4126 | static int input_file_number; |
f271358e | 4127 | size_t input_filename_length; |
ed1f651b | 4128 | static int basename_length; |
ea414c97 | 4129 | static int suffixed_basename_length; |
878f32c3 KG |
4130 | static const char *input_basename; |
4131 | static const char *input_suffix; | |
99f78cdd IR |
4132 | static struct stat input_stat; |
4133 | static int input_stat_set; | |
ed1f651b | 4134 | |
a9374841 MM |
4135 | /* The compiler used to process the current input file. */ |
4136 | static struct compiler *input_file_compiler; | |
4137 | ||
ed1f651b RS |
4138 | /* These are variables used within do_spec and do_spec_1. */ |
4139 | ||
4140 | /* Nonzero if an arg has been started and not yet terminated | |
4141 | (with space, tab or newline). */ | |
4142 | static int arg_going; | |
4143 | ||
4144 | /* Nonzero means %d or %g has been seen; the next arg to be terminated | |
4145 | is a temporary file name. */ | |
4146 | static int delete_this_arg; | |
4147 | ||
4148 | /* Nonzero means %w has been seen; the next arg to be terminated | |
4149 | is the output file name of this compilation. */ | |
4150 | static int this_is_output_file; | |
4151 | ||
4152 | /* Nonzero means %s has been seen; the next arg to be terminated | |
4153 | is the name of a library file and we should try the standard | |
4154 | search dirs for it. */ | |
4155 | static int this_is_library_file; | |
4156 | ||
a99bf70c JW |
4157 | /* Nonzero means that the input of this command is coming from a pipe. */ |
4158 | static int input_from_pipe; | |
4159 | ||
11972f66 | 4160 | /* Nonnull means substitute this for any suffix when outputting a switches |
dc297297 | 4161 | arguments. */ |
11972f66 NS |
4162 | static const char *suffix_subst; |
4163 | ||
ed1f651b RS |
4164 | /* Process the spec SPEC and run the commands specified therein. |
4165 | Returns 0 if the spec is successfully processed; -1 if failed. */ | |
4166 | ||
f271358e | 4167 | int |
1d088dee | 4168 | do_spec (const char *spec) |
ed1f651b RS |
4169 | { |
4170 | int value; | |
4171 | ||
343f59d9 | 4172 | value = do_spec_2 (spec); |
ed1f651b RS |
4173 | |
4174 | /* Force out any unfinished command. | |
4175 | If -pipe, this forces out the last command if it ended in `|'. */ | |
4176 | if (value == 0) | |
4177 | { | |
4178 | if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|")) | |
4179 | argbuf_index--; | |
4180 | ||
b856c15d RO |
4181 | set_collect_gcc_options (); |
4182 | ||
ed1f651b RS |
4183 | if (argbuf_index > 0) |
4184 | value = execute (); | |
4185 | } | |
4186 | ||
4187 | return value; | |
4188 | } | |
4189 | ||
343f59d9 | 4190 | static int |
1d088dee | 4191 | do_spec_2 (const char *spec) |
343f59d9 | 4192 | { |
6544fbcb RS |
4193 | const char *string; |
4194 | int result; | |
4195 | ||
343f59d9 AM |
4196 | clear_args (); |
4197 | arg_going = 0; | |
4198 | delete_this_arg = 0; | |
4199 | this_is_output_file = 0; | |
4200 | this_is_library_file = 0; | |
4201 | input_from_pipe = 0; | |
4202 | suffix_subst = NULL; | |
4203 | ||
6544fbcb RS |
4204 | result = do_spec_1 (spec, 0, NULL); |
4205 | ||
4206 | /* End any pending argument. */ | |
4207 | if (arg_going) | |
4208 | { | |
4209 | obstack_1grow (&obstack, 0); | |
4210 | string = obstack_finish (&obstack); | |
4211 | if (this_is_library_file) | |
4212 | string = find_file (string); | |
4213 | store_arg (string, delete_this_arg, this_is_output_file); | |
4214 | if (this_is_output_file) | |
4215 | outfiles[input_file_number] = string; | |
4216 | arg_going = 0; | |
4217 | } | |
4218 | ||
4219 | return result; | |
343f59d9 AM |
4220 | } |
4221 | ||
db36994b | 4222 | |
7816bea0 DJ |
4223 | /* Process the given spec string and add any new options to the end |
4224 | of the switches/n_switches array. */ | |
4225 | ||
4226 | static void | |
1d088dee | 4227 | do_option_spec (const char *name, const char *spec) |
7816bea0 DJ |
4228 | { |
4229 | unsigned int i, value_count, value_len; | |
4230 | const char *p, *q, *value; | |
4231 | char *tmp_spec, *tmp_spec_p; | |
4232 | ||
4233 | if (configure_default_options[0].name == NULL) | |
4234 | return; | |
4235 | ||
4236 | for (i = 0; i < ARRAY_SIZE (configure_default_options); i++) | |
4237 | if (strcmp (configure_default_options[i].name, name) == 0) | |
4238 | break; | |
4239 | if (i == ARRAY_SIZE (configure_default_options)) | |
4240 | return; | |
4241 | ||
4242 | value = configure_default_options[i].value; | |
4243 | value_len = strlen (value); | |
4244 | ||
4245 | /* Compute the size of the final spec. */ | |
4246 | value_count = 0; | |
4247 | p = spec; | |
4248 | while ((p = strstr (p, "%(VALUE)")) != NULL) | |
4249 | { | |
4250 | p ++; | |
4251 | value_count ++; | |
4252 | } | |
4253 | ||
4254 | /* Replace each %(VALUE) by the specified value. */ | |
4255 | tmp_spec = alloca (strlen (spec) + 1 | |
4256 | + value_count * (value_len - strlen ("%(VALUE)"))); | |
4257 | tmp_spec_p = tmp_spec; | |
4258 | q = spec; | |
4259 | while ((p = strstr (q, "%(VALUE)")) != NULL) | |
4260 | { | |
4261 | memcpy (tmp_spec_p, q, p - q); | |
4262 | tmp_spec_p = tmp_spec_p + (p - q); | |
4263 | memcpy (tmp_spec_p, value, value_len); | |
4264 | tmp_spec_p += value_len; | |
4265 | q = p + strlen ("%(VALUE)"); | |
4266 | } | |
4267 | strcpy (tmp_spec_p, q); | |
4268 | ||
4269 | do_self_spec (tmp_spec); | |
4270 | } | |
4271 | ||
db36994b RS |
4272 | /* Process the given spec string and add any new options to the end |
4273 | of the switches/n_switches array. */ | |
4274 | ||
4275 | static void | |
1d088dee | 4276 | do_self_spec (const char *spec) |
db36994b RS |
4277 | { |
4278 | do_spec_2 (spec); | |
4279 | do_spec_1 (" ", 0, NULL); | |
4280 | ||
4281 | if (argbuf_index > 0) | |
4282 | { | |
4283 | int i, first; | |
4284 | ||
4285 | first = n_switches; | |
4286 | n_switches += argbuf_index; | |
4287 | switches = xrealloc (switches, | |
4288 | sizeof (struct switchstr) * (n_switches + 1)); | |
4289 | ||
4290 | switches[n_switches] = switches[first]; | |
4291 | for (i = 0; i < argbuf_index; i++) | |
4292 | { | |
4293 | struct switchstr *sw; | |
4294 | ||
4295 | /* Each switch should start with '-'. */ | |
4296 | if (argbuf[i][0] != '-') | |
4297 | abort (); | |
4298 | ||
4299 | sw = &switches[i + first]; | |
4300 | sw->part1 = &argbuf[i][1]; | |
4301 | sw->args = 0; | |
4302 | sw->live_cond = SWITCH_OK; | |
4303 | sw->validated = 0; | |
4304 | sw->ordering = 0; | |
4305 | } | |
4306 | } | |
4307 | } | |
4308 | ||
ed1f651b RS |
4309 | /* Process the sub-spec SPEC as a portion of a larger spec. |
4310 | This is like processing a whole spec except that we do | |
4311 | not initialize at the beginning and we do not supply a | |
4312 | newline by default at the end. | |
4313 | INSWITCH nonzero means don't process %-sequences in SPEC; | |
4314 | in this case, % is treated as an ordinary character. | |
4315 | This is used while substituting switches. | |
4316 | INSWITCH nonzero also causes SPC not to terminate an argument. | |
4317 | ||
4318 | Value is zero unless a line was finished | |
4319 | and the command on that line reported an error. */ | |
4320 | ||
4321 | static int | |
1d088dee | 4322 | do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part) |
ed1f651b | 4323 | { |
b3694847 SS |
4324 | const char *p = spec; |
4325 | int c; | |
ed1f651b | 4326 | int i; |
878f32c3 | 4327 | const char *string; |
3279bba6 | 4328 | int value; |
ed1f651b | 4329 | |
ededb2fc | 4330 | while ((c = *p++)) |
ed1f651b RS |
4331 | /* If substituting a switch, treat all chars like letters. |
4332 | Otherwise, NL, SPC, TAB and % are special. */ | |
4333 | switch (inswitch ? 'a' : c) | |
4334 | { | |
4335 | case '\n': | |
4336 | /* End of line: finish any pending argument, | |
4337 | then run the pending command if one has been started. */ | |
4338 | if (arg_going) | |
4339 | { | |
4340 | obstack_1grow (&obstack, 0); | |
4341 | string = obstack_finish (&obstack); | |
4342 | if (this_is_library_file) | |
4343 | string = find_file (string); | |
4344 | store_arg (string, delete_this_arg, this_is_output_file); | |
4345 | if (this_is_output_file) | |
4346 | outfiles[input_file_number] = string; | |
4347 | } | |
4348 | arg_going = 0; | |
4349 | ||
4350 | if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|")) | |
4351 | { | |
ed1f651b RS |
4352 | /* A `|' before the newline means use a pipe here, |
4353 | but only if -pipe was specified. | |
4354 | Otherwise, execute now and don't pass the `|' as an arg. */ | |
4977bab6 | 4355 | if (use_pipes) |
ed1f651b | 4356 | { |
a99bf70c | 4357 | input_from_pipe = 1; |
ed1f651b RS |
4358 | break; |
4359 | } | |
4360 | else | |
4361 | argbuf_index--; | |
4362 | } | |
4363 | ||
b856c15d RO |
4364 | set_collect_gcc_options (); |
4365 | ||
ed1f651b RS |
4366 | if (argbuf_index > 0) |
4367 | { | |
3279bba6 | 4368 | value = execute (); |
ed1f651b RS |
4369 | if (value) |
4370 | return value; | |
4371 | } | |
4372 | /* Reinitialize for a new command, and for a new argument. */ | |
4373 | clear_args (); | |
4374 | arg_going = 0; | |
4375 | delete_this_arg = 0; | |
4376 | this_is_output_file = 0; | |
4377 | this_is_library_file = 0; | |
a99bf70c | 4378 | input_from_pipe = 0; |
ed1f651b RS |
4379 | break; |
4380 | ||
4381 | case '|': | |
4382 | /* End any pending argument. */ | |
4383 | if (arg_going) | |
4384 | { | |
4385 | obstack_1grow (&obstack, 0); | |
4386 | string = obstack_finish (&obstack); | |
4387 | if (this_is_library_file) | |
4388 | string = find_file (string); | |
4389 | store_arg (string, delete_this_arg, this_is_output_file); | |
4390 | if (this_is_output_file) | |
4391 | outfiles[input_file_number] = string; | |
4392 | } | |
4393 | ||
4394 | /* Use pipe */ | |
4395 | obstack_1grow (&obstack, c); | |
4396 | arg_going = 1; | |
4397 | break; | |
4398 | ||
4399 | case '\t': | |
4400 | case ' ': | |
4401 | /* Space or tab ends an argument if one is pending. */ | |
4402 | if (arg_going) | |
4403 | { | |
4404 | obstack_1grow (&obstack, 0); | |
4405 | string = obstack_finish (&obstack); | |
4406 | if (this_is_library_file) | |
4407 | string = find_file (string); | |
4408 | store_arg (string, delete_this_arg, this_is_output_file); | |
4409 | if (this_is_output_file) | |
4410 | outfiles[input_file_number] = string; | |
4411 | } | |
4412 | /* Reinitialize for a new argument. */ | |
4413 | arg_going = 0; | |
4414 | delete_this_arg = 0; | |
4415 | this_is_output_file = 0; | |
4416 | this_is_library_file = 0; | |
4417 | break; | |
4418 | ||
4419 | case '%': | |
4420 | switch (c = *p++) | |
4421 | { | |
4422 | case 0: | |
c725bd79 | 4423 | fatal ("invalid specification! Bug in cc"); |
ed1f651b RS |
4424 | |
4425 | case 'b': | |
4426 | obstack_grow (&obstack, input_basename, basename_length); | |
4427 | arg_going = 1; | |
4428 | break; | |
4429 | ||
ea414c97 ZW |
4430 | case 'B': |
4431 | obstack_grow (&obstack, input_basename, suffixed_basename_length); | |
4432 | arg_going = 1; | |
4433 | break; | |
4434 | ||
ed1f651b RS |
4435 | case 'd': |
4436 | delete_this_arg = 2; | |
4437 | break; | |
4438 | ||
4439 | /* Dump out the directories specified with LIBRARY_PATH, | |
004fd4d5 RS |
4440 | followed by the absolute directories |
4441 | that we search for startfiles. */ | |
ed1f651b | 4442 | case 'D': |
8cacec76 | 4443 | { |
48ff801b | 4444 | struct prefix_list *pl = startfile_prefixes.plist; |
85066503 | 4445 | size_t bufsize = 100; |
703ad42b | 4446 | char *buffer = xmalloc (bufsize); |
8cacec76 | 4447 | int idx; |
59014d0a | 4448 | |
8cacec76 JW |
4449 | for (; pl; pl = pl->next) |
4450 | { | |
004fd4d5 | 4451 | #ifdef RELATIVE_PREFIX_NOT_LINKDIR |
8cacec76 JW |
4452 | /* Used on systems which record the specified -L dirs |
4453 | and use them to search for dynamic linking. */ | |
4454 | /* Relative directories always come from -B, | |
4455 | and it is better not to use them for searching | |
3ac63d94 | 4456 | at run time. In particular, stage1 loses. */ |
3dce1408 | 4457 | if (!IS_ABSOLUTE_PATH (pl->prefix)) |
8cacec76 | 4458 | continue; |
004fd4d5 | 4459 | #endif |
60103a34 | 4460 | /* Try subdirectory if there is one. */ |
5bbcd587 JJ |
4461 | if (multilib_dir != NULL |
4462 | || (pl->os_multilib && multilib_os_dir != NULL)) | |
60103a34 | 4463 | { |
5bbcd587 JJ |
4464 | const char *multi_dir; |
4465 | ||
4466 | multi_dir = pl->os_multilib ? multilib_os_dir | |
4467 | : multilib_dir; | |
4468 | if (machine_suffix && multilib_dir) | |
60103a34 DE |
4469 | { |
4470 | if (strlen (pl->prefix) + strlen (machine_suffix) | |
4471 | >= bufsize) | |
4472 | bufsize = (strlen (pl->prefix) | |
4473 | + strlen (machine_suffix)) * 2 + 1; | |
703ad42b | 4474 | buffer = xrealloc (buffer, bufsize); |
60103a34 DE |
4475 | strcpy (buffer, pl->prefix); |
4476 | strcat (buffer, machine_suffix); | |
4477 | if (is_directory (buffer, multilib_dir, 1)) | |
4478 | { | |
6496a589 | 4479 | do_spec_1 ("-L", 0, NULL); |
60103a34 | 4480 | #ifdef SPACE_AFTER_L_OPTION |
6496a589 | 4481 | do_spec_1 (" ", 0, NULL); |
60103a34 | 4482 | #endif |
6496a589 KG |
4483 | do_spec_1 (buffer, 1, NULL); |
4484 | do_spec_1 (multilib_dir, 1, NULL); | |
60103a34 | 4485 | /* Make this a separate argument. */ |
6496a589 | 4486 | do_spec_1 (" ", 0, NULL); |
60103a34 DE |
4487 | } |
4488 | } | |
4489 | if (!pl->require_machine_suffix) | |
4490 | { | |
5bbcd587 | 4491 | if (is_directory (pl->prefix, multi_dir, 1)) |
60103a34 | 4492 | { |
6496a589 | 4493 | do_spec_1 ("-L", 0, NULL); |
60103a34 | 4494 | #ifdef SPACE_AFTER_L_OPTION |
6496a589 | 4495 | do_spec_1 (" ", 0, NULL); |
60103a34 | 4496 | #endif |
6496a589 | 4497 | do_spec_1 (pl->prefix, 1, NULL); |
5bbcd587 | 4498 | do_spec_1 (multi_dir, 1, NULL); |
60103a34 | 4499 | /* Make this a separate argument. */ |
6496a589 | 4500 | do_spec_1 (" ", 0, NULL); |
60103a34 DE |
4501 | } |
4502 | } | |
4503 | } | |
8cacec76 JW |
4504 | if (machine_suffix) |
4505 | { | |
0ad5835e | 4506 | if (is_directory (pl->prefix, machine_suffix, 1)) |
8cacec76 | 4507 | { |
6496a589 | 4508 | do_spec_1 ("-L", 0, NULL); |
004fd4d5 | 4509 | #ifdef SPACE_AFTER_L_OPTION |
6496a589 | 4510 | do_spec_1 (" ", 0, NULL); |
004fd4d5 | 4511 | #endif |
6496a589 | 4512 | do_spec_1 (pl->prefix, 1, NULL); |
8cacec76 JW |
4513 | /* Remove slash from machine_suffix. */ |
4514 | if (strlen (machine_suffix) >= bufsize) | |
4515 | bufsize = strlen (machine_suffix) * 2 + 1; | |
703ad42b | 4516 | buffer = xrealloc (buffer, bufsize); |
8cacec76 JW |
4517 | strcpy (buffer, machine_suffix); |
4518 | idx = strlen (buffer); | |
509781a4 | 4519 | if (IS_DIR_SEPARATOR (buffer[idx - 1])) |
8cacec76 | 4520 | buffer[idx - 1] = 0; |
6496a589 | 4521 | do_spec_1 (buffer, 1, NULL); |
8cacec76 | 4522 | /* Make this a separate argument. */ |
6496a589 | 4523 | do_spec_1 (" ", 0, NULL); |
8cacec76 JW |
4524 | } |
4525 | } | |
4526 | if (!pl->require_machine_suffix) | |
4527 | { | |
0ad5835e | 4528 | if (is_directory (pl->prefix, "", 1)) |
8cacec76 | 4529 | { |
6496a589 | 4530 | do_spec_1 ("-L", 0, NULL); |
004fd4d5 | 4531 | #ifdef SPACE_AFTER_L_OPTION |
6496a589 | 4532 | do_spec_1 (" ", 0, NULL); |
004fd4d5 | 4533 | #endif |
8cacec76 JW |
4534 | /* Remove slash from pl->prefix. */ |
4535 | if (strlen (pl->prefix) >= bufsize) | |
4536 | bufsize = strlen (pl->prefix) * 2 + 1; | |
703ad42b | 4537 | buffer = xrealloc (buffer, bufsize); |
8cacec76 JW |
4538 | strcpy (buffer, pl->prefix); |
4539 | idx = strlen (buffer); | |
509781a4 | 4540 | if (IS_DIR_SEPARATOR (buffer[idx - 1])) |
8cacec76 | 4541 | buffer[idx - 1] = 0; |
6496a589 | 4542 | do_spec_1 (buffer, 1, NULL); |
8cacec76 | 4543 | /* Make this a separate argument. */ |
6496a589 | 4544 | do_spec_1 (" ", 0, NULL); |
8cacec76 JW |
4545 | } |
4546 | } | |
4547 | } | |
4548 | free (buffer); | |
4549 | } | |
ed1f651b RS |
4550 | break; |
4551 | ||
4552 | case 'e': | |
ab87f8c8 | 4553 | /* %efoo means report an error with `foo' as error message |
ed1f651b RS |
4554 | and don't execute any more commands for this file. */ |
4555 | { | |
878f32c3 | 4556 | const char *q = p; |
ed1f651b | 4557 | char *buf; |
d25a45d4 KH |
4558 | while (*p != 0 && *p != '\n') |
4559 | p++; | |
703ad42b | 4560 | buf = alloca (p - q + 1); |
ed1f651b RS |
4561 | strncpy (buf, q, p - q); |
4562 | buf[p - q] = 0; | |
913d0833 | 4563 | error ("%s", buf); |
ed1f651b RS |
4564 | return -1; |
4565 | } | |
4566 | break; | |
4a88a060 | 4567 | case 'n': |
09da1532 | 4568 | /* %nfoo means report a notice with `foo' on stderr. */ |
4a88a060 JH |
4569 | { |
4570 | const char *q = p; | |
4571 | char *buf; | |
4572 | while (*p != 0 && *p != '\n') | |
4573 | p++; | |
703ad42b | 4574 | buf = alloca (p - q + 1); |
4a88a060 JH |
4575 | strncpy (buf, q, p - q); |
4576 | buf[p - q] = 0; | |
4577 | notice ("%s\n", buf); | |
4578 | if (*p) | |
4579 | p++; | |
4580 | } | |
4581 | break; | |
ed1f651b | 4582 | |
d25a45d4 KH |
4583 | case 'j': |
4584 | { | |
4585 | struct stat st; | |
4586 | ||
4977bab6 ZW |
4587 | /* If save_temps_flag is off, and the HOST_BIT_BUCKET is |
4588 | defined, and it is not a directory, and it is | |
4589 | writable, use it. Otherwise, treat this like any | |
4590 | other temporary file. */ | |
d25a45d4 KH |
4591 | |
4592 | if ((!save_temps_flag) | |
4593 | && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode)) | |
4594 | && (access (HOST_BIT_BUCKET, W_OK) == 0)) | |
4595 | { | |
4596 | obstack_grow (&obstack, HOST_BIT_BUCKET, | |
4597 | strlen (HOST_BIT_BUCKET)); | |
4598 | delete_this_arg = 0; | |
4599 | arg_going = 1; | |
4600 | break; | |
4601 | } | |
4602 | } | |
4977bab6 ZW |
4603 | goto create_temp_file; |
4604 | case '|': | |
4605 | if (use_pipes) | |
4606 | { | |
4607 | obstack_1grow (&obstack, '-'); | |
4608 | delete_this_arg = 0; | |
4609 | arg_going = 1; | |
4610 | ||
4611 | /* consume suffix */ | |
4612 | while (*p == '.' || ISALPHA ((unsigned char) *p)) | |
4613 | p++; | |
4614 | if (p[0] == '%' && p[1] == 'O') | |
4615 | p += 2; | |
1d088dee | 4616 | |
4977bab6 ZW |
4617 | break; |
4618 | } | |
4619 | goto create_temp_file; | |
4620 | case 'm': | |
4621 | if (use_pipes) | |
4622 | { | |
4623 | /* consume suffix */ | |
4624 | while (*p == '.' || ISALPHA ((unsigned char) *p)) | |
4625 | p++; | |
4626 | if (p[0] == '%' && p[1] == 'O') | |
4627 | p += 2; | |
1d088dee | 4628 | |
4977bab6 ZW |
4629 | break; |
4630 | } | |
4631 | goto create_temp_file; | |
ed1f651b | 4632 | case 'g': |
d887e808 | 4633 | case 'u': |
4401b31c | 4634 | case 'U': |
4977bab6 | 4635 | create_temp_file: |
ed1f651b | 4636 | { |
fb266030 | 4637 | struct temp_name *t; |
dd75c292 | 4638 | int suffix_length; |
878f32c3 | 4639 | const char *suffix = p; |
a1d9074c | 4640 | char *saved_suffix = NULL; |
dd75c292 | 4641 | |
9218435e | 4642 | while (*p == '.' || ISALPHA ((unsigned char) *p)) |
a1d9074c TT |
4643 | p++; |
4644 | suffix_length = p - suffix; | |
dd75c292 CB |
4645 | if (p[0] == '%' && p[1] == 'O') |
4646 | { | |
cbc54665 | 4647 | p += 2; |
dd75c292 | 4648 | /* We don't support extra suffix characters after %O. */ |
9218435e | 4649 | if (*p == '.' || ISALPHA ((unsigned char) *p)) |
dd75c292 | 4650 | abort (); |
a1d9074c | 4651 | if (suffix_length == 0) |
45936a85 | 4652 | suffix = TARGET_OBJECT_SUFFIX; |
a1d9074c TT |
4653 | else |
4654 | { | |
4655 | saved_suffix | |
703ad42b KG |
4656 | = xmalloc (suffix_length |
4657 | + strlen (TARGET_OBJECT_SUFFIX)); | |
a1d9074c TT |
4658 | strncpy (saved_suffix, suffix, suffix_length); |
4659 | strcpy (saved_suffix + suffix_length, | |
45936a85 | 4660 | TARGET_OBJECT_SUFFIX); |
a1d9074c | 4661 | } |
45936a85 | 4662 | suffix_length += strlen (TARGET_OBJECT_SUFFIX); |
dd75c292 | 4663 | } |
589005ff | 4664 | |
99f78cdd IR |
4665 | /* If the input_filename has the same suffix specified |
4666 | for the %g, %u, or %U, and -save-temps is specified, | |
4667 | we could end up using that file as an intermediate | |
4668 | thus clobbering the user's source file (.e.g., | |
4669 | gcc -save-temps foo.s would clobber foo.s with the | |
4670 | output of cpp0). So check for this condition and | |
4671 | generate a temp file as the intermediate. */ | |
589005ff | 4672 | |
99f78cdd IR |
4673 | if (save_temps_flag) |
4674 | { | |
4675 | temp_filename_length = basename_length + suffix_length; | |
4676 | temp_filename = alloca (temp_filename_length + 1); | |
4677 | strncpy ((char *) temp_filename, input_basename, basename_length); | |
4678 | strncpy ((char *) temp_filename + basename_length, suffix, | |
1d088dee | 4679 | suffix_length); |
99f78cdd IR |
4680 | *((char *) temp_filename + temp_filename_length) = '\0'; |
4681 | if (strcmp (temp_filename, input_filename) != 0) | |
4682 | { | |
1d088dee | 4683 | struct stat st_temp; |
589005ff | 4684 | |
1d088dee AJ |
4685 | /* Note, set_input() resets input_stat_set to 0. */ |
4686 | if (input_stat_set == 0) | |
4687 | { | |
4688 | input_stat_set = stat (input_filename, &input_stat); | |
4689 | if (input_stat_set >= 0) | |
4690 | input_stat_set = 1; | |
4691 | } | |
589005ff | 4692 | |
1d088dee AJ |
4693 | /* If we have the stat for the input_filename |
4694 | and we can do the stat for the temp_filename | |
4695 | then the they could still refer to the same | |
4696 | file if st_dev/st_ino's are the same. */ | |
589005ff | 4697 | |
99f78cdd IR |
4698 | if (input_stat_set != 1 |
4699 | || stat (temp_filename, &st_temp) < 0 | |
4700 | || input_stat.st_dev != st_temp.st_dev | |
4701 | || input_stat.st_ino != st_temp.st_ino) | |
589005ff | 4702 | { |
99f78cdd IR |
4703 | temp_filename = save_string (temp_filename, |
4704 | temp_filename_length + 1); | |
4705 | obstack_grow (&obstack, temp_filename, | |
1d088dee | 4706 | temp_filename_length); |
99f78cdd | 4707 | arg_going = 1; |
d2dff06b | 4708 | delete_this_arg = 0; |
99f78cdd IR |
4709 | break; |
4710 | } | |
4711 | } | |
4712 | } | |
fb266030 TW |
4713 | |
4714 | /* See if we already have an association of %g/%u/%U and | |
4715 | suffix. */ | |
4716 | for (t = temp_names; t; t = t->next) | |
dd75c292 CB |
4717 | if (t->length == suffix_length |
4718 | && strncmp (t->suffix, suffix, suffix_length) == 0 | |
95456d43 | 4719 | && t->unique == (c == 'u' || c == 'U' || c == 'j')) |
fb266030 TW |
4720 | break; |
4721 | ||
2297fdf1 TT |
4722 | /* Make a new association if needed. %u and %j |
4723 | require one. */ | |
49009afd | 4724 | if (t == 0 || c == 'u' || c == 'j') |
fb266030 TW |
4725 | { |
4726 | if (t == 0) | |
4727 | { | |
703ad42b | 4728 | t = xmalloc (sizeof (struct temp_name)); |
fb266030 TW |
4729 | t->next = temp_names; |
4730 | temp_names = t; | |
4731 | } | |
dd75c292 | 4732 | t->length = suffix_length; |
2297fdf1 TT |
4733 | if (saved_suffix) |
4734 | { | |
4735 | t->suffix = saved_suffix; | |
4736 | saved_suffix = NULL; | |
4737 | } | |
4738 | else | |
4739 | t->suffix = save_string (suffix, suffix_length); | |
95456d43 | 4740 | t->unique = (c == 'u' || c == 'U' || c == 'j'); |
dd75c292 | 4741 | temp_filename = make_temp_file (t->suffix); |
6aa62cff | 4742 | temp_filename_length = strlen (temp_filename); |
fb266030 TW |
4743 | t->filename = temp_filename; |
4744 | t->filename_length = temp_filename_length; | |
4745 | } | |
4746 | ||
a1d9074c TT |
4747 | if (saved_suffix) |
4748 | free (saved_suffix); | |
4749 | ||
fb266030 | 4750 | obstack_grow (&obstack, t->filename, t->filename_length); |
b9490a6e | 4751 | delete_this_arg = 1; |
ed1f651b RS |
4752 | } |
4753 | arg_going = 1; | |
4754 | break; | |
4755 | ||
4756 | case 'i': | |
d1bd0ded GK |
4757 | if (combine_inputs) |
4758 | { | |
4759 | for (i = 0; (int) i < n_infiles; i++) | |
4760 | store_arg (infiles[i].name, 0, 0); | |
4761 | } | |
4762 | else | |
4763 | { | |
4764 | obstack_grow (&obstack, input_filename, input_filename_length); | |
4765 | arg_going = 1; | |
4766 | } | |
ed1f651b RS |
4767 | break; |
4768 | ||
8eebb258 | 4769 | case 'I': |
2d879387 | 4770 | { |
48ff801b | 4771 | struct prefix_list *pl = include_prefixes.plist; |
2d879387 JW |
4772 | |
4773 | if (gcc_exec_prefix) | |
4774 | { | |
6496a589 | 4775 | do_spec_1 ("-iprefix", 1, NULL); |
2d879387 | 4776 | /* Make this a separate argument. */ |
6496a589 KG |
4777 | do_spec_1 (" ", 0, NULL); |
4778 | do_spec_1 (gcc_exec_prefix, 1, NULL); | |
4779 | do_spec_1 (" ", 0, NULL); | |
2d879387 JW |
4780 | } |
4781 | ||
e7f13528 GP |
4782 | if (target_system_root_changed || |
4783 | (target_system_root && target_sysroot_hdrs_suffix)) | |
047d636f DJ |
4784 | { |
4785 | do_spec_1 ("-isysroot", 1, NULL); | |
4786 | /* Make this a separate argument. */ | |
4787 | do_spec_1 (" ", 0, NULL); | |
4788 | do_spec_1 (target_system_root, 1, NULL); | |
e7f13528 GP |
4789 | if (target_sysroot_hdrs_suffix) |
4790 | do_spec_1 (target_sysroot_hdrs_suffix, 1, NULL); | |
047d636f DJ |
4791 | do_spec_1 (" ", 0, NULL); |
4792 | } | |
4793 | ||
2d879387 JW |
4794 | for (; pl; pl = pl->next) |
4795 | { | |
6496a589 | 4796 | do_spec_1 ("-isystem", 1, NULL); |
2d879387 | 4797 | /* Make this a separate argument. */ |
6496a589 KG |
4798 | do_spec_1 (" ", 0, NULL); |
4799 | do_spec_1 (pl->prefix, 1, NULL); | |
4800 | do_spec_1 (" ", 0, NULL); | |
2d879387 JW |
4801 | } |
4802 | } | |
8eebb258 RS |
4803 | break; |
4804 | ||
ed1f651b | 4805 | case 'o': |
15c5edb9 TT |
4806 | { |
4807 | int max = n_infiles; | |
15c5edb9 | 4808 | max += lang_specific_extra_outfiles; |
08dc830e | 4809 | |
15c5edb9 TT |
4810 | for (i = 0; i < max; i++) |
4811 | if (outfiles[i]) | |
4812 | store_arg (outfiles[i], 0, 0); | |
4813 | break; | |
4814 | } | |
ed1f651b | 4815 | |
ed7dae04 | 4816 | case 'O': |
45936a85 | 4817 | obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX)); |
ed7dae04 RK |
4818 | arg_going = 1; |
4819 | break; | |
4820 | ||
ed1f651b RS |
4821 | case 's': |
4822 | this_is_library_file = 1; | |
4823 | break; | |
4824 | ||
17211ab5 GK |
4825 | case 'V': |
4826 | outfiles[input_file_number] = NULL; | |
4827 | break; | |
4828 | ||
ed1f651b RS |
4829 | case 'w': |
4830 | this_is_output_file = 1; | |
4831 | break; | |
4832 | ||
4833 | case 'W': | |
4834 | { | |
ed846da3 | 4835 | int cur_index = argbuf_index; |
ed1f651b RS |
4836 | /* Handle the {...} following the %W. */ |
4837 | if (*p != '{') | |
4838 | abort (); | |
4839 | p = handle_braces (p + 1); | |
4840 | if (p == 0) | |
4841 | return -1; | |
a3a0177e JM |
4842 | /* End any pending argument. */ |
4843 | if (arg_going) | |
4844 | { | |
4845 | obstack_1grow (&obstack, 0); | |
4846 | string = obstack_finish (&obstack); | |
4847 | if (this_is_library_file) | |
4848 | string = find_file (string); | |
4849 | store_arg (string, delete_this_arg, this_is_output_file); | |
4850 | if (this_is_output_file) | |
4851 | outfiles[input_file_number] = string; | |
4852 | arg_going = 0; | |
4853 | } | |
ed1f651b RS |
4854 | /* If any args were output, mark the last one for deletion |
4855 | on failure. */ | |
ed846da3 | 4856 | if (argbuf_index != cur_index) |
ed1f651b RS |
4857 | record_temp_file (argbuf[argbuf_index - 1], 0, 1); |
4858 | break; | |
4859 | } | |
4860 | ||
4861 | /* %x{OPTION} records OPTION for %X to output. */ | |
4862 | case 'x': | |
4863 | { | |
878f32c3 | 4864 | const char *p1 = p; |
ed1f651b RS |
4865 | char *string; |
4866 | ||
4867 | /* Skip past the option value and make a copy. */ | |
4868 | if (*p != '{') | |
4869 | abort (); | |
4870 | while (*p++ != '}') | |
4871 | ; | |
4872 | string = save_string (p1 + 1, p - p1 - 2); | |
4873 | ||
4874 | /* See if we already recorded this option. */ | |
4875 | for (i = 0; i < n_linker_options; i++) | |
4876 | if (! strcmp (string, linker_options[i])) | |
4877 | { | |
4878 | free (string); | |
4879 | return 0; | |
4880 | } | |
4881 | ||
4882 | /* This option is new; add it. */ | |
b8468bc7 | 4883 | add_linker_option (string, strlen (string)); |
ed1f651b RS |
4884 | } |
4885 | break; | |
4886 | ||
368dfd3a | 4887 | /* Dump out the options accumulated previously using %x. */ |
ed1f651b RS |
4888 | case 'X': |
4889 | for (i = 0; i < n_linker_options; i++) | |
4890 | { | |
6496a589 | 4891 | do_spec_1 (linker_options[i], 1, NULL); |
ed1f651b | 4892 | /* Make each accumulated option a separate argument. */ |
6496a589 | 4893 | do_spec_1 (" ", 0, NULL); |
ed1f651b RS |
4894 | } |
4895 | break; | |
4896 | ||
c9ebacb8 RS |
4897 | /* Dump out the options accumulated previously using -Wa,. */ |
4898 | case 'Y': | |
4899 | for (i = 0; i < n_assembler_options; i++) | |
4900 | { | |
6496a589 | 4901 | do_spec_1 (assembler_options[i], 1, NULL); |
c9ebacb8 | 4902 | /* Make each accumulated option a separate argument. */ |
6496a589 | 4903 | do_spec_1 (" ", 0, NULL); |
c9ebacb8 RS |
4904 | } |
4905 | break; | |
4906 | ||
57cb9b60 JW |
4907 | /* Dump out the options accumulated previously using -Wp,. */ |
4908 | case 'Z': | |
4909 | for (i = 0; i < n_preprocessor_options; i++) | |
4910 | { | |
6496a589 | 4911 | do_spec_1 (preprocessor_options[i], 1, NULL); |
57cb9b60 | 4912 | /* Make each accumulated option a separate argument. */ |
6496a589 | 4913 | do_spec_1 (" ", 0, NULL); |
57cb9b60 JW |
4914 | } |
4915 | break; | |
4916 | ||
ed1f651b RS |
4917 | /* Here are digits and numbers that just process |
4918 | a certain constant string as a spec. */ | |
4919 | ||
4920 | case '1': | |
6496a589 | 4921 | value = do_spec_1 (cc1_spec, 0, NULL); |
3279bba6 RS |
4922 | if (value != 0) |
4923 | return value; | |
ed1f651b RS |
4924 | break; |
4925 | ||
4926 | case '2': | |
6496a589 | 4927 | value = do_spec_1 (cc1plus_spec, 0, NULL); |
3279bba6 RS |
4928 | if (value != 0) |
4929 | return value; | |
ed1f651b RS |
4930 | break; |
4931 | ||
4932 | case 'a': | |
6496a589 | 4933 | value = do_spec_1 (asm_spec, 0, NULL); |
3279bba6 RS |
4934 | if (value != 0) |
4935 | return value; | |
ed1f651b RS |
4936 | break; |
4937 | ||
4938 | case 'A': | |
6496a589 | 4939 | value = do_spec_1 (asm_final_spec, 0, NULL); |
3279bba6 RS |
4940 | if (value != 0) |
4941 | return value; | |
ed1f651b RS |
4942 | break; |
4943 | ||
ed1f651b | 4944 | case 'C': |
a9374841 | 4945 | { |
83182544 | 4946 | const char *const spec |
589005ff KH |
4947 | = (input_file_compiler->cpp_spec |
4948 | ? input_file_compiler->cpp_spec | |
a9374841 | 4949 | : cpp_spec); |
6496a589 | 4950 | value = do_spec_1 (spec, 0, NULL); |
a9374841 MM |
4951 | if (value != 0) |
4952 | return value; | |
4953 | } | |
ed1f651b RS |
4954 | break; |
4955 | ||
4956 | case 'E': | |
6496a589 | 4957 | value = do_spec_1 (endfile_spec, 0, NULL); |
3279bba6 RS |
4958 | if (value != 0) |
4959 | return value; | |
ed1f651b RS |
4960 | break; |
4961 | ||
4962 | case 'l': | |
6496a589 | 4963 | value = do_spec_1 (link_spec, 0, NULL); |
3279bba6 RS |
4964 | if (value != 0) |
4965 | return value; | |
ed1f651b RS |
4966 | break; |
4967 | ||
4968 | case 'L': | |
6496a589 | 4969 | value = do_spec_1 (lib_spec, 0, NULL); |
3279bba6 RS |
4970 | if (value != 0) |
4971 | return value; | |
ed1f651b RS |
4972 | break; |
4973 | ||
68d69835 | 4974 | case 'G': |
6496a589 | 4975 | value = do_spec_1 (libgcc_spec, 0, NULL); |
68d69835 JM |
4976 | if (value != 0) |
4977 | return value; | |
4978 | break; | |
4979 | ||
9db0819e RH |
4980 | case 'M': |
4981 | if (multilib_dir && strcmp (multilib_dir, ".") != 0) | |
4982 | { | |
4983 | char *p; | |
4984 | const char *q; | |
4985 | size_t len; | |
4986 | ||
4987 | len = strlen (multilib_dir); | |
4988 | obstack_blank (&obstack, len + 1); | |
55bd9f24 | 4989 | p = obstack_next_free (&obstack) - (len + 1); |
9db0819e RH |
4990 | |
4991 | *p++ = '_'; | |
4992 | for (q = multilib_dir; *q ; ++q, ++p) | |
4993 | *p = (IS_DIR_SEPARATOR (*q) ? '_' : *q); | |
4994 | } | |
4995 | break; | |
4996 | ||
4977bab6 ZW |
4997 | case 'R': |
4998 | /* We assume there is a directory | |
4999 | separator at the end of this string. */ | |
5000 | if (target_system_root) | |
1d088dee AJ |
5001 | { |
5002 | obstack_grow (&obstack, target_system_root, | |
e7f13528 GP |
5003 | strlen (target_system_root)); |
5004 | if (target_sysroot_suffix) | |
1d088dee | 5005 | obstack_grow (&obstack, target_sysroot_suffix, |
e7f13528 GP |
5006 | strlen (target_sysroot_suffix)); |
5007 | } | |
4977bab6 ZW |
5008 | break; |
5009 | ||
ed1f651b | 5010 | case 'S': |
6496a589 | 5011 | value = do_spec_1 (startfile_spec, 0, NULL); |
3279bba6 RS |
5012 | if (value != 0) |
5013 | return value; | |
ed1f651b RS |
5014 | break; |
5015 | ||
5016 | /* Here we define characters other than letters and digits. */ | |
5017 | ||
5018 | case '{': | |
5019 | p = handle_braces (p); | |
5020 | if (p == 0) | |
5021 | return -1; | |
5022 | break; | |
5023 | ||
f3226a90 JT |
5024 | case ':': |
5025 | p = handle_spec_function (p); | |
5026 | if (p == 0) | |
5027 | return -1; | |
5028 | break; | |
5029 | ||
ed1f651b RS |
5030 | case '%': |
5031 | obstack_1grow (&obstack, '%'); | |
5032 | break; | |
5033 | ||
589005ff KH |
5034 | case '.': |
5035 | { | |
5036 | unsigned len = 0; | |
11972f66 | 5037 | |
589005ff KH |
5038 | while (p[len] && p[len] != ' ' && p[len] != '%') |
5039 | len++; | |
5040 | suffix_subst = save_string (p - 1, len + 1); | |
5041 | p += len; | |
5042 | } | |
11972f66 | 5043 | break; |
589005ff | 5044 | |
4977bab6 ZW |
5045 | /* Henceforth ignore the option(s) matching the pattern |
5046 | after the %<. */ | |
5047 | case '<': | |
5048 | { | |
5049 | unsigned len = 0; | |
5050 | int have_wildcard = 0; | |
5051 | int i; | |
5052 | ||
5053 | while (p[len] && p[len] != ' ' && p[len] != '\t') | |
5054 | len++; | |
5055 | ||
5056 | if (p[len-1] == '*') | |
5057 | have_wildcard = 1; | |
5058 | ||
5059 | for (i = 0; i < n_switches; i++) | |
5060 | if (!strncmp (switches[i].part1, p, len - have_wildcard) | |
5061 | && (have_wildcard || switches[i].part1[len] == '\0')) | |
5062 | { | |
5063 | switches[i].live_cond = SWITCH_IGNORE; | |
5064 | switches[i].validated = 1; | |
5065 | } | |
5066 | ||
5067 | p += len; | |
5068 | } | |
5069 | break; | |
5070 | ||
ed1f651b | 5071 | case '*': |
3ac63d94 NC |
5072 | if (soft_matched_part) |
5073 | { | |
6496a589 KG |
5074 | do_spec_1 (soft_matched_part, 1, NULL); |
5075 | do_spec_1 (" ", 0, NULL); | |
3ac63d94 NC |
5076 | } |
5077 | else | |
5078 | /* Catch the case where a spec string contains something like | |
5079 | '%{foo:%*}'. ie there is no * in the pattern on the left | |
5080 | hand side of the :. */ | |
1737c953 | 5081 | error ("spec failure: '%%*' has not been initialized by pattern match"); |
ed1f651b RS |
5082 | break; |
5083 | ||
5084 | /* Process a string found as the value of a spec given by name. | |
5085 | This feature allows individual machine descriptions | |
4089dfab JL |
5086 | to add and use their own specs. |
5087 | %[...] modifies -D options the way %P does; | |
5088 | %(...) uses the spec unmodified. */ | |
5089 | case '[': | |
1f978f5f | 5090 | error ("warning: use of obsolete %%[ operator in specs"); |
ed1f651b | 5091 | case '(': |
ed1f651b | 5092 | { |
878f32c3 | 5093 | const char *name = p; |
ed1f651b RS |
5094 | struct spec_list *sl; |
5095 | int len; | |
5096 | ||
5097 | /* The string after the S/P is the name of a spec that is to be | |
0f41302f | 5098 | processed. */ |
4089dfab | 5099 | while (*p && *p != ')' && *p != ']') |
ed1f651b RS |
5100 | p++; |
5101 | ||
3ac63d94 | 5102 | /* See if it's in the list. */ |
ed1f651b | 5103 | for (len = p - name, sl = specs; sl; sl = sl->next) |
79aff5ac | 5104 | if (sl->name_len == len && !strncmp (sl->name, name, len)) |
ed1f651b | 5105 | { |
79aff5ac | 5106 | name = *(sl->ptr_spec); |
20df0482 | 5107 | #ifdef DEBUG_SPECS |
ab87f8c8 JL |
5108 | notice ("Processing spec %c%s%c, which is '%s'\n", |
5109 | c, sl->name, (c == '(') ? ')' : ']', name); | |
20df0482 | 5110 | #endif |
ed1f651b RS |
5111 | break; |
5112 | } | |
5113 | ||
5114 | if (sl) | |
5115 | { | |
4089dfab JL |
5116 | if (c == '(') |
5117 | { | |
6496a589 | 5118 | value = do_spec_1 (name, 0, NULL); |
4089dfab JL |
5119 | if (value != 0) |
5120 | return value; | |
5121 | } | |
5122 | else | |
5123 | { | |
703ad42b | 5124 | char *x = alloca (strlen (name) * 2 + 1); |
4089dfab | 5125 | char *buf = x; |
878f32c3 | 5126 | const char *y = name; |
4089dfab JL |
5127 | int flag = 0; |
5128 | ||
5129 | /* Copy all of NAME into BUF, but put __ after | |
3ac63d94 | 5130 | every -D and at the end of each arg. */ |
4089dfab JL |
5131 | while (1) |
5132 | { | |
5133 | if (! strncmp (y, "-D", 2)) | |
5134 | { | |
5135 | *x++ = '-'; | |
5136 | *x++ = 'D'; | |
5137 | *x++ = '_'; | |
5138 | *x++ = '_'; | |
5139 | y += 2; | |
5140 | flag = 1; | |
5141 | continue; | |
5142 | } | |
d25a45d4 KH |
5143 | else if (flag |
5144 | && (*y == ' ' || *y == '\t' || *y == '=' | |
5145 | || *y == '}' || *y == 0)) | |
4089dfab JL |
5146 | { |
5147 | *x++ = '_'; | |
5148 | *x++ = '_'; | |
5149 | flag = 0; | |
5150 | } | |
d25a45d4 | 5151 | if (*y == 0) |
4089dfab JL |
5152 | break; |
5153 | else | |
5154 | *x++ = *y++; | |
5155 | } | |
5156 | *x = 0; | |
5157 | ||
6496a589 | 5158 | value = do_spec_1 (buf, 0, NULL); |
4089dfab JL |
5159 | if (value != 0) |
5160 | return value; | |
5161 | } | |
ed1f651b | 5162 | } |
b3865ca9 | 5163 | |
4089dfab | 5164 | /* Discard the closing paren or bracket. */ |
b3865ca9 RS |
5165 | if (*p) |
5166 | p++; | |
ed1f651b RS |
5167 | } |
5168 | break; | |
5169 | ||
5170 | default: | |
1737c953 | 5171 | error ("spec failure: unrecognized spec option '%c'", c); |
3ac63d94 | 5172 | break; |
ed1f651b RS |
5173 | } |
5174 | break; | |
5175 | ||
5176 | case '\\': | |
5177 | /* Backslash: treat next character as ordinary. */ | |
5178 | c = *p++; | |
5179 | ||
938d968e | 5180 | /* Fall through. */ |
ed1f651b RS |
5181 | default: |
5182 | /* Ordinary character: put it into the current argument. */ | |
5183 | obstack_1grow (&obstack, c); | |
5184 | arg_going = 1; | |
5185 | } | |
5186 | ||
f3226a90 JT |
5187 | /* End of string. If we are processing a spec function, we need to |
5188 | end any pending argument. */ | |
5189 | if (processing_spec_function && arg_going) | |
5190 | { | |
5191 | obstack_1grow (&obstack, 0); | |
5192 | string = obstack_finish (&obstack); | |
5193 | if (this_is_library_file) | |
5194 | string = find_file (string); | |
5195 | store_arg (string, delete_this_arg, this_is_output_file); | |
5196 | if (this_is_output_file) | |
5197 | outfiles[input_file_number] = string; | |
5198 | arg_going = 0; | |
5199 | } | |
5200 | ||
d25a45d4 | 5201 | return 0; |
ed1f651b RS |
5202 | } |
5203 | ||
f3226a90 JT |
5204 | /* Look up a spec function. */ |
5205 | ||
5206 | static const struct spec_function * | |
1d088dee | 5207 | lookup_spec_function (const char *name) |
f3226a90 JT |
5208 | { |
5209 | static const struct spec_function * const spec_function_tables[] = | |
5210 | { | |
5211 | static_spec_functions, | |
5212 | lang_specific_spec_functions, | |
5213 | }; | |
5214 | const struct spec_function *sf; | |
5215 | unsigned int i; | |
5216 | ||
5217 | for (i = 0; i < ARRAY_SIZE (spec_function_tables); i++) | |
5218 | { | |
5219 | for (sf = spec_function_tables[i]; sf->name != NULL; sf++) | |
5220 | if (strcmp (sf->name, name) == 0) | |
5221 | return sf; | |
5222 | } | |
5223 | ||
5224 | return NULL; | |
5225 | } | |
5226 | ||
5227 | /* Evaluate a spec function. */ | |
5228 | ||
5229 | static const char * | |
1d088dee | 5230 | eval_spec_function (const char *func, const char *args) |
f3226a90 JT |
5231 | { |
5232 | const struct spec_function *sf; | |
5233 | const char *funcval; | |
5234 | ||
5235 | /* Saved spec processing context. */ | |
5236 | int save_argbuf_index; | |
5237 | int save_argbuf_length; | |
5238 | const char **save_argbuf; | |
5239 | ||
5240 | int save_arg_going; | |
5241 | int save_delete_this_arg; | |
5242 | int save_this_is_output_file; | |
5243 | int save_this_is_library_file; | |
5244 | int save_input_from_pipe; | |
5245 | const char *save_suffix_subst; | |
5246 | ||
5247 | ||
5248 | sf = lookup_spec_function (func); | |
5249 | if (sf == NULL) | |
5250 | fatal ("unknown spec function `%s'", func); | |
5251 | ||
5252 | /* Push the spec processing context. */ | |
5253 | save_argbuf_index = argbuf_index; | |
5254 | save_argbuf_length = argbuf_length; | |
5255 | save_argbuf = argbuf; | |
5256 | ||
5257 | save_arg_going = arg_going; | |
5258 | save_delete_this_arg = delete_this_arg; | |
5259 | save_this_is_output_file = this_is_output_file; | |
5260 | save_this_is_library_file = this_is_library_file; | |
5261 | save_input_from_pipe = input_from_pipe; | |
5262 | save_suffix_subst = suffix_subst; | |
5263 | ||
5264 | /* Create a new spec processing context, and build the function | |
5265 | arguments. */ | |
5266 | ||
5267 | alloc_args (); | |
5268 | if (do_spec_2 (args) < 0) | |
5269 | fatal ("error in args to spec function `%s'", func); | |
5270 | ||
5271 | /* argbuf_index is an index for the next argument to be inserted, and | |
5272 | so contains the count of the args already inserted. */ | |
5273 | ||
5274 | funcval = (*sf->func) (argbuf_index, argbuf); | |
5275 | ||
5276 | /* Pop the spec processing context. */ | |
5277 | argbuf_index = save_argbuf_index; | |
5278 | argbuf_length = save_argbuf_length; | |
5279 | free (argbuf); | |
5280 | argbuf = save_argbuf; | |
5281 | ||
5282 | arg_going = save_arg_going; | |
5283 | delete_this_arg = save_delete_this_arg; | |
5284 | this_is_output_file = save_this_is_output_file; | |
5285 | this_is_library_file = save_this_is_library_file; | |
5286 | input_from_pipe = save_input_from_pipe; | |
5287 | suffix_subst = save_suffix_subst; | |
5288 | ||
5289 | return funcval; | |
5290 | } | |
5291 | ||
5292 | /* Handle a spec function call of the form: | |
5293 | ||
5294 | %:function(args) | |
5295 | ||
5296 | ARGS is processed as a spec in a separate context and split into an | |
5297 | argument vector in the normal fashion. The function returns a string | |
5298 | containing a spec which we then process in the caller's context, or | |
5299 | NULL if no processing is required. */ | |
5300 | ||
5301 | static const char * | |
1d088dee | 5302 | handle_spec_function (const char *p) |
f3226a90 JT |
5303 | { |
5304 | char *func, *args; | |
5305 | const char *endp, *funcval; | |
5306 | int count; | |
5307 | ||
5308 | processing_spec_function++; | |
5309 | ||
5310 | /* Get the function name. */ | |
5311 | for (endp = p; *endp != '\0'; endp++) | |
5312 | { | |
5313 | if (*endp == '(') /* ) */ | |
5314 | break; | |
5315 | /* Only allow [A-Za-z0-9], -, and _ in function names. */ | |
5316 | if (!ISALNUM (*endp) && !(*endp == '-' || *endp == '_')) | |
5317 | fatal ("malformed spec function name"); | |
5318 | } | |
5319 | if (*endp != '(') /* ) */ | |
5320 | fatal ("no arguments for spec function"); | |
5321 | func = save_string (p, endp - p); | |
5322 | p = ++endp; | |
5323 | ||
5324 | /* Get the arguments. */ | |
5325 | for (count = 0; *endp != '\0'; endp++) | |
5326 | { | |
5327 | /* ( */ | |
5328 | if (*endp == ')') | |
5329 | { | |
5330 | if (count == 0) | |
5331 | break; | |
5332 | count--; | |
5333 | } | |
5334 | else if (*endp == '(') /* ) */ | |
5335 | count++; | |
5336 | } | |
5337 | /* ( */ | |
5338 | if (*endp != ')') | |
5339 | fatal ("malformed spec function arguments"); | |
5340 | args = save_string (p, endp - p); | |
5341 | p = ++endp; | |
5342 | ||
5343 | /* p now points to just past the end of the spec function expression. */ | |
5344 | ||
5345 | funcval = eval_spec_function (func, args); | |
5346 | if (funcval != NULL && do_spec_1 (funcval, 0, NULL) < 0) | |
5347 | p = NULL; | |
5348 | ||
5349 | free (func); | |
5350 | free (args); | |
5351 | ||
5352 | processing_spec_function--; | |
5353 | ||
5354 | return p; | |
5355 | } | |
5356 | ||
4977bab6 ZW |
5357 | /* Inline subroutine of handle_braces. Returns true if the current |
5358 | input suffix matches the atom bracketed by ATOM and END_ATOM. */ | |
5359 | static inline bool | |
1d088dee | 5360 | input_suffix_matches (const char *atom, const char *end_atom) |
4977bab6 ZW |
5361 | { |
5362 | return (input_suffix | |
5363 | && !strncmp (input_suffix, atom, end_atom - atom) | |
5364 | && input_suffix[end_atom - atom] == '\0'); | |
5365 | } | |
ed1f651b | 5366 | |
4977bab6 ZW |
5367 | /* Inline subroutine of handle_braces. Returns true if a switch |
5368 | matching the atom bracketed by ATOM and END_ATOM appeared on the | |
5369 | command line. */ | |
5370 | static inline bool | |
1d088dee | 5371 | switch_matches (const char *atom, const char *end_atom, int starred) |
ed1f651b | 5372 | { |
4977bab6 ZW |
5373 | int i; |
5374 | int len = end_atom - atom; | |
5375 | int plen = starred ? len : -1; | |
ed1f651b | 5376 | |
4977bab6 ZW |
5377 | for (i = 0; i < n_switches; i++) |
5378 | if (!strncmp (switches[i].part1, atom, len) | |
5379 | && (starred || switches[i].part1[len] == '\0') | |
5380 | && check_live_switch (i, plen)) | |
5381 | return true; | |
8097c429 | 5382 | |
4977bab6 ZW |
5383 | return false; |
5384 | } | |
ed1f651b | 5385 | |
4977bab6 ZW |
5386 | /* Inline subroutine of handle_braces. Mark all of the switches which |
5387 | match ATOM (extends to END_ATOM; STARRED indicates whether there | |
5388 | was a star after the atom) for later processing. */ | |
5389 | static inline void | |
1d088dee | 5390 | mark_matching_switches (const char *atom, const char *end_atom, int starred) |
4977bab6 ZW |
5391 | { |
5392 | int i; | |
5393 | int len = end_atom - atom; | |
5394 | int plen = starred ? len : -1; | |
5395 | ||
5396 | for (i = 0; i < n_switches; i++) | |
5397 | if (!strncmp (switches[i].part1, atom, len) | |
5398 | && (starred || switches[i].part1[len] == '\0') | |
5399 | && check_live_switch (i, plen)) | |
5400 | switches[i].ordering = 1; | |
5401 | } | |
9bf09437 | 5402 | |
4977bab6 ZW |
5403 | /* Inline subroutine of handle_braces. Process all the currently |
5404 | marked switches through give_switch, and clear the marks. */ | |
5405 | static inline void | |
1d088dee | 5406 | process_marked_switches (void) |
4977bab6 ZW |
5407 | { |
5408 | int i; | |
ed1f651b | 5409 | |
4977bab6 ZW |
5410 | for (i = 0; i < n_switches; i++) |
5411 | if (switches[i].ordering == 1) | |
5412 | { | |
5413 | switches[i].ordering = 0; | |
5414 | give_switch (i, 0); | |
5415 | } | |
5416 | } | |
ed1f651b | 5417 | |
4977bab6 ZW |
5418 | /* Handle a %{ ... } construct. P points just inside the leading {. |
5419 | Returns a pointer one past the end of the brace block, or 0 | |
5420 | if we call do_spec_1 and that returns -1. */ | |
ed1f651b | 5421 | |
4977bab6 | 5422 | static const char * |
1d088dee | 5423 | handle_braces (const char *p) |
4977bab6 ZW |
5424 | { |
5425 | const char *atom, *end_atom; | |
5426 | const char *d_atom = NULL, *d_end_atom = NULL; | |
8097c429 | 5427 | |
4977bab6 ZW |
5428 | bool a_is_suffix; |
5429 | bool a_is_starred; | |
5430 | bool a_is_negated; | |
5431 | bool a_matched; | |
9bf09437 | 5432 | |
4977bab6 ZW |
5433 | bool a_must_be_last = false; |
5434 | bool ordered_set = false; | |
5435 | bool disjunct_set = false; | |
5436 | bool disj_matched = false; | |
5437 | bool disj_starred = true; | |
5438 | bool n_way_choice = false; | |
5439 | bool n_way_matched = false; | |
5440 | ||
5441 | #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0) | |
9bf09437 | 5442 | |
4977bab6 | 5443 | do |
ed1f651b | 5444 | { |
4977bab6 ZW |
5445 | if (a_must_be_last) |
5446 | abort (); | |
9bf09437 | 5447 | |
4977bab6 ZW |
5448 | /* Scan one "atom" (S in the description above of %{}, possibly |
5449 | with !, ., or * modifiers). */ | |
5450 | a_matched = a_is_suffix = a_is_starred = a_is_negated = false; | |
9218435e | 5451 | |
4977bab6 ZW |
5452 | SKIP_WHITE(); |
5453 | if (*p == '!') | |
5454 | p++, a_is_negated = true; | |
ed1f651b | 5455 | |
4977bab6 ZW |
5456 | SKIP_WHITE(); |
5457 | if (*p == '.') | |
5458 | p++, a_is_suffix = true; | |
ed1f651b | 5459 | |
4977bab6 ZW |
5460 | atom = p; |
5461 | while (ISIDNUM(*p) || *p == '-' || *p == '+' || *p == '=' | |
cde26509 | 5462 | || *p == ',' || *p == '.' || *p == '@') |
4977bab6 ZW |
5463 | p++; |
5464 | end_atom = p; | |
ed1f651b | 5465 | |
4977bab6 ZW |
5466 | if (*p == '*') |
5467 | p++, a_is_starred = 1; | |
196a37f4 | 5468 | |
4977bab6 ZW |
5469 | SKIP_WHITE(); |
5470 | if (*p == '&' || *p == '}') | |
5471 | { | |
5472 | /* Substitute the switch(es) indicated by the current atom. */ | |
5473 | ordered_set = true; | |
5474 | if (disjunct_set || n_way_choice || a_is_negated || a_is_suffix | |
5475 | || atom == end_atom) | |
5476 | abort (); | |
ed1f651b | 5477 | |
4977bab6 ZW |
5478 | mark_matching_switches (atom, end_atom, a_is_starred); |
5479 | ||
5480 | if (*p == '}') | |
5481 | process_marked_switches (); | |
5482 | } | |
5483 | else if (*p == '|' || *p == ':') | |
ed1f651b | 5484 | { |
4977bab6 ZW |
5485 | /* Substitute some text if the current atom appears as a switch |
5486 | or suffix. */ | |
5487 | disjunct_set = true; | |
5488 | if (ordered_set) | |
5489 | abort (); | |
ed1f651b | 5490 | |
4977bab6 | 5491 | if (atom == end_atom) |
ed1f651b | 5492 | { |
4977bab6 ZW |
5493 | if (!n_way_choice || disj_matched || *p == '|' |
5494 | || a_is_negated || a_is_suffix || a_is_starred) | |
5495 | abort (); | |
5496 | ||
5497 | /* An empty term may appear as the last choice of an | |
5498 | N-way choice set; it means "otherwise". */ | |
5499 | a_must_be_last = true; | |
5500 | disj_matched = !n_way_matched; | |
5501 | disj_starred = false; | |
ed1f651b | 5502 | } |
4977bab6 | 5503 | else |
ed1f651b | 5504 | { |
4977bab6 ZW |
5505 | if (a_is_suffix && a_is_starred) |
5506 | abort (); | |
5507 | ||
5508 | if (!a_is_starred) | |
5509 | disj_starred = false; | |
5510 | ||
5511 | /* Don't bother testing this atom if we already have a | |
5512 | match. */ | |
5513 | if (!disj_matched && !n_way_matched) | |
5514 | { | |
5515 | if (a_is_suffix) | |
5516 | a_matched = input_suffix_matches (atom, end_atom); | |
5517 | else | |
5518 | a_matched = switch_matches (atom, end_atom, a_is_starred); | |
5519 | ||
5520 | if (a_matched != a_is_negated) | |
5521 | { | |
5522 | disj_matched = true; | |
5523 | d_atom = atom; | |
5524 | d_end_atom = end_atom; | |
5525 | } | |
5526 | } | |
ed1f651b | 5527 | } |
ed1f651b | 5528 | |
4977bab6 | 5529 | if (*p == ':') |
ed1f651b | 5530 | { |
4977bab6 ZW |
5531 | /* Found the body, that is, the text to substitute if the |
5532 | current disjunction matches. */ | |
5533 | p = process_brace_body (p + 1, d_atom, d_end_atom, disj_starred, | |
5534 | disj_matched && !n_way_matched); | |
5535 | if (p == 0) | |
5536 | return 0; | |
ed1f651b | 5537 | |
4977bab6 ZW |
5538 | /* If we have an N-way choice, reset state for the next |
5539 | disjunction. */ | |
5540 | if (*p == ';') | |
ed1f651b | 5541 | { |
4977bab6 ZW |
5542 | n_way_choice = true; |
5543 | n_way_matched |= disj_matched; | |
5544 | disj_matched = false; | |
5545 | disj_starred = true; | |
5546 | d_atom = d_end_atom = NULL; | |
ed1f651b RS |
5547 | } |
5548 | } | |
5549 | } | |
ed1f651b | 5550 | else |
4977bab6 ZW |
5551 | abort (); |
5552 | } | |
5553 | while (*p++ != '}'); | |
ed1f651b | 5554 | |
4977bab6 ZW |
5555 | return p; |
5556 | ||
5557 | #undef SKIP_WHITE | |
5558 | } | |
5559 | ||
5560 | /* Subroutine of handle_braces. Scan and process a brace substitution body | |
5561 | (X in the description of %{} syntax). P points one past the colon; | |
5562 | ATOM and END_ATOM bracket the first atom which was found to be true | |
5563 | (present) in the current disjunction; STARRED indicates whether all | |
5564 | the atoms in the current disjunction were starred (for syntax validation); | |
5565 | MATCHED indicates whether the disjunction matched or not, and therefore | |
5566 | whether or not the body is to be processed through do_spec_1 or just | |
5567 | skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1 | |
5568 | returns -1. */ | |
5569 | ||
5570 | static const char * | |
1d088dee AJ |
5571 | process_brace_body (const char *p, const char *atom, const char *end_atom, |
5572 | int starred, int matched) | |
4977bab6 ZW |
5573 | { |
5574 | const char *body, *end_body; | |
5575 | unsigned int nesting_level; | |
5576 | bool have_subst = false; | |
5577 | ||
5578 | /* Locate the closing } or ;, honoring nested braces. | |
5579 | Trim trailing whitespace. */ | |
5580 | body = p; | |
5581 | nesting_level = 1; | |
5582 | for (;;) | |
5583 | { | |
5584 | if (*p == '{') | |
5585 | nesting_level++; | |
5586 | else if (*p == '}') | |
ed1f651b | 5587 | { |
4977bab6 ZW |
5588 | if (!--nesting_level) |
5589 | break; | |
ed1f651b | 5590 | } |
4977bab6 ZW |
5591 | else if (*p == ';' && nesting_level == 1) |
5592 | break; | |
5593 | else if (*p == '%' && p[1] == '*' && nesting_level == 1) | |
5594 | have_subst = true; | |
5595 | else if (*p == '\0') | |
5596 | abort (); | |
5597 | p++; | |
ed1f651b | 5598 | } |
1d088dee | 5599 | |
4977bab6 ZW |
5600 | end_body = p; |
5601 | while (end_body[-1] == ' ' || end_body[-1] == '\t') | |
5602 | end_body--; | |
ed1f651b | 5603 | |
4977bab6 ZW |
5604 | if (have_subst && !starred) |
5605 | abort (); | |
9bf09437 | 5606 | |
4977bab6 | 5607 | if (matched) |
196a37f4 | 5608 | { |
4977bab6 ZW |
5609 | /* Copy the substitution body to permanent storage and execute it. |
5610 | If have_subst is false, this is a simple matter of running the | |
5611 | body through do_spec_1... */ | |
5612 | char *string = save_string (body, end_body - body); | |
5613 | if (!have_subst) | |
5614 | { | |
5615 | if (do_spec_1 (string, 0, NULL) < 0) | |
5616 | return 0; | |
5617 | } | |
5618 | else | |
5619 | { | |
5620 | /* ... but if have_subst is true, we have to process the | |
5621 | body once for each matching switch, with %* set to the | |
5622 | variant part of the switch. */ | |
5623 | unsigned int hard_match_len = end_atom - atom; | |
5624 | int i; | |
196a37f4 | 5625 | |
4977bab6 ZW |
5626 | for (i = 0; i < n_switches; i++) |
5627 | if (!strncmp (switches[i].part1, atom, hard_match_len) | |
5628 | && check_live_switch (i, hard_match_len)) | |
5629 | { | |
5630 | if (do_spec_1 (string, 0, | |
5631 | &switches[i].part1[hard_match_len]) < 0) | |
5632 | return 0; | |
5633 | /* Pass any arguments this switch has. */ | |
5634 | give_switch (i, 1); | |
5635 | suffix_subst = NULL; | |
5636 | } | |
5637 | } | |
10ebf5fe NB |
5638 | } |
5639 | ||
4977bab6 | 5640 | return p; |
ed1f651b | 5641 | } |
f5b0eb4e | 5642 | \f |
6c396fb5 RK |
5643 | /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch |
5644 | on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*} | |
5645 | spec, or -1 if either exact match or %* is used. | |
f5b0eb4e RK |
5646 | |
5647 | A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch | |
5648 | whose value does not begin with "no-" is obsoleted by the same value | |
5649 | with the "no-", similarly for a switch with the "no-" prefix. */ | |
5650 | ||
5651 | static int | |
1d088dee | 5652 | check_live_switch (int switchnum, int prefix_length) |
f5b0eb4e | 5653 | { |
878f32c3 | 5654 | const char *name = switches[switchnum].part1; |
f5b0eb4e RK |
5655 | int i; |
5656 | ||
6c396fb5 | 5657 | /* In the common case of {<at-most-one-letter>*}, a negating |
f5b0eb4e RK |
5658 | switch would always match, so ignore that case. We will just |
5659 | send the conflicting switches to the compiler phase. */ | |
6c396fb5 | 5660 | if (prefix_length >= 0 && prefix_length <= 1) |
f5b0eb4e RK |
5661 | return 1; |
5662 | ||
5663 | /* If we already processed this switch and determined if it was | |
5664 | live or not, return our past determination. */ | |
5665 | if (switches[switchnum].live_cond != 0) | |
5666 | return switches[switchnum].live_cond > 0; | |
5667 | ||
5668 | /* Now search for duplicate in a manner that depends on the name. */ | |
5669 | switch (*name) | |
5670 | { | |
5671 | case 'O': | |
d25a45d4 KH |
5672 | for (i = switchnum + 1; i < n_switches; i++) |
5673 | if (switches[i].part1[0] == 'O') | |
5674 | { | |
5675 | switches[switchnum].validated = 1; | |
5676 | switches[switchnum].live_cond = SWITCH_FALSE; | |
5677 | return 0; | |
5678 | } | |
f5b0eb4e | 5679 | break; |
ed1f651b | 5680 | |
f5b0eb4e | 5681 | case 'W': case 'f': case 'm': |
6c396fb5 | 5682 | if (! strncmp (name + 1, "no-", 3)) |
f5b0eb4e | 5683 | { |
0f41302f | 5684 | /* We have Xno-YYY, search for XYYY. */ |
f5b0eb4e RK |
5685 | for (i = switchnum + 1; i < n_switches; i++) |
5686 | if (switches[i].part1[0] == name[0] | |
5687 | && ! strcmp (&switches[i].part1[1], &name[4])) | |
d25a45d4 KH |
5688 | { |
5689 | switches[switchnum].validated = 1; | |
5690 | switches[switchnum].live_cond = SWITCH_FALSE; | |
5691 | return 0; | |
5692 | } | |
f5b0eb4e RK |
5693 | } |
5694 | else | |
5695 | { | |
5696 | /* We have XYYY, search for Xno-YYY. */ | |
5697 | for (i = switchnum + 1; i < n_switches; i++) | |
5698 | if (switches[i].part1[0] == name[0] | |
5699 | && switches[i].part1[1] == 'n' | |
5700 | && switches[i].part1[2] == 'o' | |
5701 | && switches[i].part1[3] == '-' | |
5702 | && !strcmp (&switches[i].part1[4], &name[1])) | |
d25a45d4 KH |
5703 | { |
5704 | switches[switchnum].validated = 1; | |
5705 | switches[switchnum].live_cond = SWITCH_FALSE; | |
5706 | return 0; | |
5707 | } | |
f5b0eb4e RK |
5708 | } |
5709 | break; | |
5710 | } | |
5711 | ||
5712 | /* Otherwise the switch is live. */ | |
8097c429 | 5713 | switches[switchnum].live_cond = SWITCH_LIVE; |
f5b0eb4e RK |
5714 | return 1; |
5715 | } | |
5716 | \f | |
ed1f651b RS |
5717 | /* Pass a switch to the current accumulating command |
5718 | in the same form that we received it. | |
5719 | SWITCHNUM identifies the switch; it is an index into | |
5720 | the vector of switches gcc received, which is `switches'. | |
5721 | This cannot fail since it never finishes a command line. | |
5722 | ||
4977bab6 | 5723 | If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */ |
ed1f651b RS |
5724 | |
5725 | static void | |
1d088dee | 5726 | give_switch (int switchnum, int omit_first_word) |
ed1f651b | 5727 | { |
8097c429 TT |
5728 | if (switches[switchnum].live_cond == SWITCH_IGNORE) |
5729 | return; | |
5730 | ||
ed1f651b RS |
5731 | if (!omit_first_word) |
5732 | { | |
6496a589 KG |
5733 | do_spec_1 ("-", 0, NULL); |
5734 | do_spec_1 (switches[switchnum].part1, 1, NULL); | |
ed1f651b | 5735 | } |
1ba9a487 | 5736 | |
ed1f651b RS |
5737 | if (switches[switchnum].args != 0) |
5738 | { | |
fbd40359 | 5739 | const char **p; |
ed1f651b RS |
5740 | for (p = switches[switchnum].args; *p; p++) |
5741 | { | |
11972f66 NS |
5742 | const char *arg = *p; |
5743 | ||
4977bab6 | 5744 | do_spec_1 (" ", 0, NULL); |
11972f66 NS |
5745 | if (suffix_subst) |
5746 | { | |
5747 | unsigned length = strlen (arg); | |
e65677af | 5748 | int dot = 0; |
11972f66 NS |
5749 | |
5750 | while (length-- && !IS_DIR_SEPARATOR (arg[length])) | |
5751 | if (arg[length] == '.') | |
5752 | { | |
5753 | ((char *)arg)[length] = 0; | |
e65677af | 5754 | dot = 1; |
11972f66 NS |
5755 | break; |
5756 | } | |
6496a589 | 5757 | do_spec_1 (arg, 1, NULL); |
e65677af JJ |
5758 | if (dot) |
5759 | ((char *)arg)[length] = '.'; | |
5760 | do_spec_1 (suffix_subst, 1, NULL); | |
11972f66 NS |
5761 | } |
5762 | else | |
6496a589 | 5763 | do_spec_1 (arg, 1, NULL); |
ed1f651b RS |
5764 | } |
5765 | } | |
1ba9a487 | 5766 | |
6496a589 | 5767 | do_spec_1 (" ", 0, NULL); |
ab87f8c8 | 5768 | switches[switchnum].validated = 1; |
ed1f651b RS |
5769 | } |
5770 | \f | |
5771 | /* Search for a file named NAME trying various prefixes including the | |
5772 | user's -B prefix and some standard ones. | |
5773 | Return the absolute file name found. If nothing is found, return NAME. */ | |
5774 | ||
878f32c3 | 5775 | static const char * |
1d088dee | 5776 | find_file (const char *name) |
ed1f651b RS |
5777 | { |
5778 | char *newname; | |
5779 | ||
60103a34 | 5780 | /* Try multilib_dir if it is defined. */ |
5bbcd587 | 5781 | if (multilib_os_dir != NULL) |
60103a34 | 5782 | { |
5bbcd587 | 5783 | newname = find_a_file (&startfile_prefixes, name, R_OK, 1); |
60103a34 DE |
5784 | |
5785 | /* If we don't find it in the multi library dir, then fall | |
5786 | through and look for it in the normal places. */ | |
5787 | if (newname != NULL) | |
5788 | return newname; | |
5789 | } | |
5790 | ||
5bbcd587 | 5791 | newname = find_a_file (&startfile_prefixes, name, R_OK, 0); |
ed1f651b RS |
5792 | return newname ? newname : name; |
5793 | } | |
5794 | ||
0ad5835e ILT |
5795 | /* Determine whether a directory exists. If LINKER, return 0 for |
5796 | certain fixed names not needed by the linker. If not LINKER, it is | |
5797 | only important to return 0 if the host machine has a small ARG_MAX | |
5798 | limit. */ | |
ed1f651b RS |
5799 | |
5800 | static int | |
1d088dee | 5801 | is_directory (const char *path1, const char *path2, int linker) |
ed1f651b RS |
5802 | { |
5803 | int len1 = strlen (path1); | |
5804 | int len2 = strlen (path2); | |
703ad42b | 5805 | char *path = alloca (3 + len1 + len2); |
ed1f651b RS |
5806 | char *cp; |
5807 | struct stat st; | |
5808 | ||
0ad5835e ILT |
5809 | #ifndef SMALL_ARG_MAX |
5810 | if (! linker) | |
5811 | return 1; | |
5812 | #endif | |
5813 | ||
ed1f651b RS |
5814 | /* Construct the path from the two parts. Ensure the string ends with "/.". |
5815 | The resulting path will be a directory even if the given path is a | |
5816 | symbolic link. */ | |
7e2231e7 PB |
5817 | memcpy (path, path1, len1); |
5818 | memcpy (path + len1, path2, len2); | |
ed1f651b | 5819 | cp = path + len1 + len2; |
509781a4 | 5820 | if (!IS_DIR_SEPARATOR (cp[-1])) |
48ff801b | 5821 | *cp++ = DIR_SEPARATOR; |
ed1f651b RS |
5822 | *cp++ = '.'; |
5823 | *cp = '\0'; | |
5824 | ||
5825 | /* Exclude directories that the linker is known to search. */ | |
0ad5835e | 5826 | if (linker |
48ff801b | 5827 | && ((cp - path == 6 |
9218435e | 5828 | && strcmp (path, concat (dir_separator_str, "lib", |
d4f2852f | 5829 | dir_separator_str, ".", NULL)) == 0) |
48ff801b | 5830 | || (cp - path == 10 |
9218435e KH |
5831 | && strcmp (path, concat (dir_separator_str, "usr", |
5832 | dir_separator_str, "lib", | |
d4f2852f | 5833 | dir_separator_str, ".", NULL)) == 0))) |
ed1f651b RS |
5834 | return 0; |
5835 | ||
5836 | return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode)); | |
5837 | } | |
512b62fb JM |
5838 | |
5839 | /* Set up the various global variables to indicate that we're processing | |
5840 | the input file named FILENAME. */ | |
5841 | ||
b856c15d | 5842 | void |
1d088dee | 5843 | set_input (const char *filename) |
512b62fb | 5844 | { |
b3694847 | 5845 | const char *p; |
512b62fb JM |
5846 | |
5847 | input_filename = filename; | |
5848 | input_filename_length = strlen (input_filename); | |
9218435e | 5849 | |
512b62fb | 5850 | input_basename = input_filename; |
4ebe197a ME |
5851 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
5852 | /* Skip drive name so 'x:foo' is handled properly. */ | |
5853 | if (input_basename[1] == ':') | |
5854 | input_basename += 2; | |
5855 | #endif | |
5856 | for (p = input_basename; *p; p++) | |
512b62fb JM |
5857 | if (IS_DIR_SEPARATOR (*p)) |
5858 | input_basename = p + 1; | |
5859 | ||
5860 | /* Find a suffix starting with the last period, | |
5861 | and set basename_length to exclude that suffix. */ | |
5862 | basename_length = strlen (input_basename); | |
ea414c97 | 5863 | suffixed_basename_length = basename_length; |
512b62fb | 5864 | p = input_basename + basename_length; |
d25a45d4 KH |
5865 | while (p != input_basename && *p != '.') |
5866 | --p; | |
512b62fb JM |
5867 | if (*p == '.' && p != input_basename) |
5868 | { | |
5869 | basename_length = p - input_basename; | |
5870 | input_suffix = p + 1; | |
5871 | } | |
5872 | else | |
5873 | input_suffix = ""; | |
589005ff | 5874 | |
99f78cdd IR |
5875 | /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then |
5876 | we will need to do a stat on the input_filename. The | |
5877 | INPUT_STAT_SET signals that the stat is needed. */ | |
5878 | input_stat_set = 0; | |
512b62fb | 5879 | } |
ed1f651b RS |
5880 | \f |
5881 | /* On fatal signals, delete all the temporary files. */ | |
5882 | ||
5883 | static void | |
1d088dee | 5884 | fatal_error (int signum) |
ed1f651b RS |
5885 | { |
5886 | signal (signum, SIG_DFL); | |
5887 | delete_failure_queue (); | |
5888 | delete_temp_files (); | |
5889 | /* Get the same signal again, this time not handled, | |
5890 | so its normal effect occurs. */ | |
5891 | kill (getpid (), signum); | |
5892 | } | |
5893 | ||
1d088dee | 5894 | extern int main (int, const char *const *); |
a8f227e7 | 5895 | |
ed1f651b | 5896 | int |
1d088dee | 5897 | main (int argc, const char *const *argv) |
ed1f651b | 5898 | { |
ea414c97 | 5899 | size_t i; |
ed1f651b | 5900 | int value; |
ed1f651b | 5901 | int linker_was_run = 0; |
17211ab5 | 5902 | int num_linker_inputs = 0; |
ed1f651b RS |
5903 | char *explicit_link_files; |
5904 | char *specs_file; | |
878f32c3 | 5905 | const char *p; |
d9ac3a07 | 5906 | struct user_specs *uptr; |
ed1f651b | 5907 | |
afcd8a02 | 5908 | p = argv[0] + strlen (argv[0]); |
509781a4 ME |
5909 | while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1])) |
5910 | --p; | |
afcd8a02 | 5911 | programname = p; |
ed1f651b | 5912 | |
e1a132c6 RK |
5913 | xmalloc_set_program_name (programname); |
5914 | ||
93284395 | 5915 | #ifdef GCC_DRIVER_HOST_INITIALIZATION |
ff7cc307 | 5916 | /* Perform host dependent initialization when needed. */ |
93284395 ME |
5917 | GCC_DRIVER_HOST_INITIALIZATION; |
5918 | #endif | |
5919 | ||
191bf464 | 5920 | gcc_init_libintl (); |
ab87f8c8 | 5921 | |
ed1f651b RS |
5922 | if (signal (SIGINT, SIG_IGN) != SIG_IGN) |
5923 | signal (SIGINT, fatal_error); | |
2a353d3a | 5924 | #ifdef SIGHUP |
ed1f651b RS |
5925 | if (signal (SIGHUP, SIG_IGN) != SIG_IGN) |
5926 | signal (SIGHUP, fatal_error); | |
2a353d3a | 5927 | #endif |
ed1f651b RS |
5928 | if (signal (SIGTERM, SIG_IGN) != SIG_IGN) |
5929 | signal (SIGTERM, fatal_error); | |
5930 | #ifdef SIGPIPE | |
5931 | if (signal (SIGPIPE, SIG_IGN) != SIG_IGN) | |
5932 | signal (SIGPIPE, fatal_error); | |
5933 | #endif | |
798bdf70 | 5934 | #ifdef SIGCHLD |
0bf679a3 BK |
5935 | /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will |
5936 | receive the signal. A different setting is inheritable */ | |
5937 | signal (SIGCHLD, SIG_DFL); | |
798bdf70 | 5938 | #endif |
ed1f651b | 5939 | |
f3226a90 JT |
5940 | /* Allocate the argument vector. */ |
5941 | alloc_args (); | |
ed1f651b RS |
5942 | |
5943 | obstack_init (&obstack); | |
5944 | ||
961b7009 MM |
5945 | /* Build multilib_select, et. al from the separate lines that make up each |
5946 | multilib selection. */ | |
ffd86336 | 5947 | { |
3b304f5b | 5948 | const char *const *q = multilib_raw; |
961b7009 | 5949 | int need_space; |
ffd86336 JW |
5950 | |
5951 | obstack_init (&multilib_obstack); | |
0f41302f | 5952 | while ((p = *q++) != (char *) 0) |
ffd86336 JW |
5953 | obstack_grow (&multilib_obstack, p, strlen (p)); |
5954 | ||
5955 | obstack_1grow (&multilib_obstack, 0); | |
5956 | multilib_select = obstack_finish (&multilib_obstack); | |
961b7009 MM |
5957 | |
5958 | q = multilib_matches_raw; | |
5959 | while ((p = *q++) != (char *) 0) | |
5960 | obstack_grow (&multilib_obstack, p, strlen (p)); | |
5961 | ||
5962 | obstack_1grow (&multilib_obstack, 0); | |
5963 | multilib_matches = obstack_finish (&multilib_obstack); | |
5964 | ||
0a8d6618 BC |
5965 | q = multilib_exclusions_raw; |
5966 | while ((p = *q++) != (char *) 0) | |
d25a45d4 | 5967 | obstack_grow (&multilib_obstack, p, strlen (p)); |
0a8d6618 BC |
5968 | |
5969 | obstack_1grow (&multilib_obstack, 0); | |
5970 | multilib_exclusions = obstack_finish (&multilib_obstack); | |
9218435e | 5971 | |
961b7009 | 5972 | need_space = FALSE; |
b6a1cbae | 5973 | for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++) |
961b7009 MM |
5974 | { |
5975 | if (need_space) | |
5976 | obstack_1grow (&multilib_obstack, ' '); | |
5977 | obstack_grow (&multilib_obstack, | |
5978 | multilib_defaults_raw[i], | |
5979 | strlen (multilib_defaults_raw[i])); | |
5980 | need_space = TRUE; | |
5981 | } | |
5982 | ||
5983 | obstack_1grow (&multilib_obstack, 0); | |
5984 | multilib_defaults = obstack_finish (&multilib_obstack); | |
ffd86336 JW |
5985 | } |
5986 | ||
b3865ca9 | 5987 | /* Set up to remember the pathname of gcc and any options |
1d23c208 JW |
5988 | needed for collect. We use argv[0] instead of programname because |
5989 | we need the complete pathname. */ | |
b3865ca9 | 5990 | obstack_init (&collect_obstack); |
d25a45d4 KH |
5991 | obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1); |
5992 | obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1); | |
b3865ca9 RS |
5993 | putenv (obstack_finish (&collect_obstack)); |
5994 | ||
8faf4a68 JW |
5995 | #ifdef INIT_ENVIRONMENT |
5996 | /* Set up any other necessary machine specific environment variables. */ | |
5997 | putenv (INIT_ENVIRONMENT); | |
5998 | #endif | |
5999 | ||
ed1f651b RS |
6000 | /* Make a table of what switches there are (switches, n_switches). |
6001 | Make a table of specified input files (infiles, n_infiles). | |
6002 | Decode switches that are handled locally. */ | |
6003 | ||
6004 | process_command (argc, argv); | |
6005 | ||
6006 | /* Initialize the vector of specs to just the default. | |
6007 | This means one element containing 0s, as a terminator. */ | |
6008 | ||
703ad42b KG |
6009 | compilers = xmalloc (sizeof default_compilers); |
6010 | memcpy (compilers, default_compilers, sizeof default_compilers); | |
ed1f651b RS |
6011 | n_compilers = n_default_compilers; |
6012 | ||
6013 | /* Read specs from a file if there is one. */ | |
6014 | ||
6aa62cff | 6015 | machine_suffix = concat (spec_machine, dir_separator_str, |
d4f2852f KG |
6016 | spec_version, dir_separator_str, NULL); |
6017 | just_machine_suffix = concat (spec_machine, dir_separator_str, NULL); | |
ed1f651b | 6018 | |
5bbcd587 | 6019 | specs_file = find_a_file (&startfile_prefixes, "specs", R_OK, 0); |
ed1f651b RS |
6020 | /* Read the specs file unless it is a default one. */ |
6021 | if (specs_file != 0 && strcmp (specs_file, "specs")) | |
20df0482 MM |
6022 | read_specs (specs_file, TRUE); |
6023 | else | |
6024 | init_spec (); | |
841faeed | 6025 | |
5bb67e36 | 6026 | /* We need to check standard_exec_prefix/just_machine_suffix/specs |
3ac63d94 | 6027 | for any override of as, ld and libraries. */ |
703ad42b KG |
6028 | specs_file = alloca (strlen (standard_exec_prefix) |
6029 | + strlen (just_machine_suffix) + sizeof ("specs")); | |
5bb67e36 RK |
6030 | |
6031 | strcpy (specs_file, standard_exec_prefix); | |
6032 | strcat (specs_file, just_machine_suffix); | |
6033 | strcat (specs_file, "specs"); | |
6034 | if (access (specs_file, R_OK) == 0) | |
6035 | read_specs (specs_file, TRUE); | |
9218435e | 6036 | |
7816bea0 DJ |
6037 | /* Process any configure-time defaults specified for the command line |
6038 | options, via OPTION_DEFAULT_SPECS. */ | |
6039 | for (i = 0; i < ARRAY_SIZE (option_default_specs); i++) | |
6040 | do_option_spec (option_default_specs[i].name, | |
6041 | option_default_specs[i].spec); | |
6042 | ||
3bd6d4c4 AO |
6043 | /* Process DRIVER_SELF_SPECS, adding any new options to the end |
6044 | of the command line. */ | |
6045 | ||
6046 | for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++) | |
6047 | do_self_spec (driver_self_specs[i]); | |
6048 | ||
4977bab6 ZW |
6049 | /* If not cross-compiling, look for executables in the standard |
6050 | places. */ | |
6051 | if (*cross_compile == '0') | |
004fd4d5 | 6052 | { |
2296d164 RK |
6053 | if (*md_exec_prefix) |
6054 | { | |
6055 | add_prefix (&exec_prefixes, md_exec_prefix, "GCC", | |
5bbcd587 | 6056 | PREFIX_PRIORITY_LAST, 0, NULL, 0); |
2296d164 | 6057 | } |
4977bab6 ZW |
6058 | } |
6059 | ||
71c0e7fc | 6060 | /* Process sysroot_suffix_spec. */ |
e7f13528 GP |
6061 | if (*sysroot_suffix_spec != 0 |
6062 | && do_spec_2 (sysroot_suffix_spec) == 0) | |
6063 | { | |
6064 | if (argbuf_index > 1) | |
6065 | error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC."); | |
6066 | else if (argbuf_index == 1) | |
6067 | target_sysroot_suffix = xstrdup (argbuf[argbuf_index -1]); | |
6068 | } | |
6069 | ||
71c0e7fc | 6070 | /* Process sysroot_hdrs_suffix_spec. */ |
e7f13528 GP |
6071 | if (*sysroot_hdrs_suffix_spec != 0 |
6072 | && do_spec_2 (sysroot_hdrs_suffix_spec) == 0) | |
6073 | { | |
6074 | if (argbuf_index > 1) | |
6075 | error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC."); | |
6076 | else if (argbuf_index == 1) | |
6077 | target_sysroot_hdrs_suffix = xstrdup (argbuf[argbuf_index -1]); | |
6078 | } | |
6079 | ||
4977bab6 ZW |
6080 | /* Look for startfiles in the standard places. */ |
6081 | if (*startfile_prefix_spec != 0 | |
6082 | && do_spec_2 (startfile_prefix_spec) == 0 | |
6083 | && do_spec_1 (" ", 0, NULL) == 0) | |
6084 | { | |
6085 | int ndx; | |
6086 | for (ndx = 0; ndx < argbuf_index; ndx++) | |
6087 | add_sysrooted_prefix (&startfile_prefixes, argbuf[ndx], "BINUTILS", | |
6088 | PREFIX_PRIORITY_LAST, 0, NULL, 1); | |
6089 | } | |
6090 | /* We should eventually get rid of all these and stick to | |
6091 | startfile_prefix_spec exclusively. */ | |
6092 | else if (*cross_compile == '0' || target_system_root) | |
6093 | { | |
6094 | if (*md_exec_prefix) | |
6095 | add_sysrooted_prefix (&startfile_prefixes, md_exec_prefix, "GCC", | |
6096 | PREFIX_PRIORITY_LAST, 0, NULL, 1); | |
004fd4d5 | 6097 | |
2296d164 | 6098 | if (*md_startfile_prefix) |
4977bab6 ZW |
6099 | add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix, |
6100 | "GCC", PREFIX_PRIORITY_LAST, 0, NULL, 1); | |
004fd4d5 | 6101 | |
2296d164 | 6102 | if (*md_startfile_prefix_1) |
4977bab6 ZW |
6103 | add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix_1, |
6104 | "GCC", PREFIX_PRIORITY_LAST, 0, NULL, 1); | |
607a4f7d | 6105 | |
4dbc7773 ILT |
6106 | /* If standard_startfile_prefix is relative, base it on |
6107 | standard_exec_prefix. This lets us move the installed tree | |
6108 | as a unit. If GCC_EXEC_PREFIX is defined, base | |
0d037580 DJ |
6109 | standard_startfile_prefix on that as well. |
6110 | ||
6111 | If the prefix is relative, only search it for native compilers; | |
6112 | otherwise we will search a directory containing host libraries. */ | |
3dce1408 | 6113 | if (IS_ABSOLUTE_PATH (standard_startfile_prefix)) |
4977bab6 ZW |
6114 | add_sysrooted_prefix (&startfile_prefixes, |
6115 | standard_startfile_prefix, "BINUTILS", | |
6116 | PREFIX_PRIORITY_LAST, 0, NULL, 1); | |
0d037580 | 6117 | else if (*cross_compile == '0') |
4dbc7773 ILT |
6118 | { |
6119 | if (gcc_exec_prefix) | |
48ff801b | 6120 | add_prefix (&startfile_prefixes, |
6aa62cff | 6121 | concat (gcc_exec_prefix, machine_suffix, |
d4f2852f | 6122 | standard_startfile_prefix, NULL), |
5bbcd587 | 6123 | NULL, PREFIX_PRIORITY_LAST, 0, NULL, 1); |
48ff801b | 6124 | add_prefix (&startfile_prefixes, |
6aa62cff DE |
6125 | concat (standard_exec_prefix, |
6126 | machine_suffix, | |
d4f2852f | 6127 | standard_startfile_prefix, NULL), |
5bbcd587 | 6128 | NULL, PREFIX_PRIORITY_LAST, 0, NULL, 1); |
9218435e | 6129 | } |
4dbc7773 | 6130 | |
4977bab6 ZW |
6131 | add_sysrooted_prefix (&startfile_prefixes, standard_startfile_prefix_1, |
6132 | "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL, 1); | |
6133 | add_sysrooted_prefix (&startfile_prefixes, standard_startfile_prefix_2, | |
6134 | "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL, 1); | |
004fd4d5 | 6135 | #if 0 /* Can cause surprises, and one can use -B./ instead. */ |
6496a589 | 6136 | add_prefix (&startfile_prefixes, "./", NULL, |
5bbcd587 | 6137 | PREFIX_PRIORITY_LAST, 1, NULL, 0); |
004fd4d5 RS |
6138 | #endif |
6139 | } | |
343f59d9 | 6140 | |
8607048d TT |
6141 | /* Process any user specified specs in the order given on the command |
6142 | line. */ | |
6143 | for (uptr = user_specs_head; uptr; uptr = uptr->next) | |
6144 | { | |
5bbcd587 JJ |
6145 | char *filename = find_a_file (&startfile_prefixes, uptr->filename, |
6146 | R_OK, 0); | |
8607048d TT |
6147 | read_specs (filename ? filename : uptr->filename, FALSE); |
6148 | } | |
6149 | ||
e8601ecb JW |
6150 | /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */ |
6151 | if (gcc_exec_prefix) | |
cb6edbcb KG |
6152 | gcc_exec_prefix = concat (gcc_exec_prefix, spec_machine, dir_separator_str, |
6153 | spec_version, dir_separator_str, NULL); | |
004fd4d5 | 6154 | |
ed1f651b RS |
6155 | /* Now we have the specs. |
6156 | Set the `valid' bits for switches that match anything in any spec. */ | |
6157 | ||
6158 | validate_all_switches (); | |
6159 | ||
60103a34 DE |
6160 | /* Now that we have the switches and the specs, set |
6161 | the subdirectory based on the options. */ | |
6162 | set_multilib_dir (); | |
6163 | ||
ed1f651b RS |
6164 | /* Warn about any switches that no pass was interested in. */ |
6165 | ||
d25a45d4 | 6166 | for (i = 0; (int) i < n_switches; i++) |
ab87f8c8 | 6167 | if (! switches[i].validated) |
ed1f651b RS |
6168 | error ("unrecognized option `-%s'", switches[i].part1); |
6169 | ||
6a9e290e RK |
6170 | /* Obey some of the options. */ |
6171 | ||
2628b9d3 DE |
6172 | if (print_search_dirs) |
6173 | { | |
5e4adfba PT |
6174 | printf (_("install: %s%s\n"), standard_exec_prefix, machine_suffix); |
6175 | printf (_("programs: %s\n"), build_search_list (&exec_prefixes, "", 0)); | |
6176 | printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes, "", 0)); | |
9257393c | 6177 | return (0); |
2628b9d3 DE |
6178 | } |
6179 | ||
6a9e290e | 6180 | if (print_file_name) |
2dcb563f | 6181 | { |
6a9e290e | 6182 | printf ("%s\n", find_file (print_file_name)); |
9257393c | 6183 | return (0); |
2dcb563f RS |
6184 | } |
6185 | ||
6a9e290e RK |
6186 | if (print_prog_name) |
6187 | { | |
5bbcd587 | 6188 | char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK, 0); |
6a9e290e | 6189 | printf ("%s\n", (newname ? newname : print_prog_name)); |
9257393c | 6190 | return (0); |
6a9e290e | 6191 | } |
ed1f651b | 6192 | |
60103a34 DE |
6193 | if (print_multi_lib) |
6194 | { | |
6195 | print_multilib_info (); | |
9257393c | 6196 | return (0); |
60103a34 DE |
6197 | } |
6198 | ||
6199 | if (print_multi_directory) | |
6200 | { | |
6201 | if (multilib_dir == NULL) | |
6202 | printf (".\n"); | |
6203 | else | |
6204 | printf ("%s\n", multilib_dir); | |
9257393c | 6205 | return (0); |
60103a34 DE |
6206 | } |
6207 | ||
5bbcd587 JJ |
6208 | if (print_multi_os_directory) |
6209 | { | |
6210 | if (multilib_os_dir == NULL) | |
6211 | printf (".\n"); | |
6212 | else | |
6213 | printf ("%s\n", multilib_os_dir); | |
6214 | return (0); | |
6215 | } | |
6216 | ||
91606ce2 CC |
6217 | if (target_help_flag) |
6218 | { | |
3ef42a0c | 6219 | /* Print if any target specific options. */ |
91606ce2 CC |
6220 | |
6221 | /* We do not exit here. Instead we have created a fake input file | |
6222 | called 'target-dummy' which needs to be compiled, and we pass this | |
6223 | on to the various sub-processes, along with the --target-help | |
dc297297 | 6224 | switch. */ |
91606ce2 CC |
6225 | } |
6226 | ||
b8468bc7 NC |
6227 | if (print_help_list) |
6228 | { | |
6229 | display_help (); | |
6230 | ||
6231 | if (! verbose_flag) | |
6232 | { | |
5e4adfba | 6233 | printf (_("\nFor bug reporting instructions, please see:\n")); |
a976603e | 6234 | printf ("%s.\n", bug_report_url); |
9218435e | 6235 | |
9257393c | 6236 | return (0); |
b8468bc7 NC |
6237 | } |
6238 | ||
6239 | /* We do not exit here. Instead we have created a fake input file | |
6240 | called 'help-dummy' which needs to be compiled, and we pass this | |
4fe9b91c | 6241 | on the various sub-processes, along with the --help switch. */ |
b8468bc7 | 6242 | } |
9218435e | 6243 | |
ed1f651b RS |
6244 | if (verbose_flag) |
6245 | { | |
7ad9ff7a | 6246 | int n; |
008355a6 | 6247 | const char *thrmod; |
7ad9ff7a | 6248 | |
f5fa9a5b PE |
6249 | notice ("Configured with: %s\n", configuration_arguments); |
6250 | ||
008355a6 AO |
6251 | #ifdef THREAD_MODEL_SPEC |
6252 | /* We could have defined THREAD_MODEL_SPEC to "%*" by default, | |
6253 | but there's no point in doing all this processing just to get | |
6254 | thread_model back. */ | |
6255 | obstack_init (&obstack); | |
6256 | do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model); | |
6257 | obstack_1grow (&obstack, '\0'); | |
6258 | thrmod = obstack_finish (&obstack); | |
6259 | #else | |
6260 | thrmod = thread_model; | |
6261 | #endif | |
6262 | ||
6263 | notice ("Thread model: %s\n", thrmod); | |
a6687d2b | 6264 | |
7ad9ff7a DE |
6265 | /* compiler_version is truncated at the first space when initialized |
6266 | from version string, so truncate version_string at the first space | |
6267 | before comparing. */ | |
6268 | for (n = 0; version_string[n]; n++) | |
6269 | if (version_string[n] == ' ') | |
6270 | break; | |
6271 | ||
6272 | if (! strncmp (version_string, compiler_version, n) | |
6273 | && compiler_version[n] == 0) | |
ab87f8c8 | 6274 | notice ("gcc version %s\n", version_string); |
9c4faac1 | 6275 | else |
ab87f8c8 JL |
6276 | notice ("gcc driver version %s executing gcc version %s\n", |
6277 | version_string, compiler_version); | |
9c4faac1 | 6278 | |
ed1f651b | 6279 | if (n_infiles == 0) |
9257393c | 6280 | return (0); |
ed1f651b RS |
6281 | } |
6282 | ||
a2a05b0a | 6283 | if (n_infiles == added_libraries) |
1f978f5f | 6284 | fatal ("no input files"); |
ed1f651b RS |
6285 | |
6286 | /* Make a place to record the compiler output file names | |
6287 | that correspond to the input files. */ | |
6288 | ||
f271358e | 6289 | i = n_infiles; |
e37cda9b | 6290 | i += lang_specific_extra_outfiles; |
703ad42b | 6291 | outfiles = xcalloc (i, sizeof (char *)); |
ed1f651b RS |
6292 | |
6293 | /* Record which files were specified explicitly as link input. */ | |
6294 | ||
ad85216e | 6295 | explicit_link_files = xcalloc (1, n_infiles); |
ed1f651b | 6296 | |
d1bd0ded GK |
6297 | if (combine_inputs) |
6298 | { | |
6299 | int lang_n_infiles = 0; | |
6300 | for (i = 0; (int) i < n_infiles; i++) | |
6301 | { | |
6302 | const char *name = infiles[i].name; | |
6303 | struct compiler *compiler | |
6304 | = lookup_compiler (name, strlen (name), infiles[i].language); | |
6305 | if (compiler == NULL) | |
6306 | error ("%s: linker input file unused because linking not done", | |
6307 | name); | |
6308 | else if (lang_n_infiles > 0 && compiler != input_file_compiler) | |
6309 | fatal ("cannot specify -o with -c or -S and multiple languages"); | |
6310 | else | |
6311 | { | |
6312 | lang_n_infiles++; | |
6313 | input_file_compiler = compiler; | |
6314 | } | |
6315 | } | |
6316 | } | |
6317 | ||
6318 | for (i = 0; (int) i < (combine_inputs ? 1 : n_infiles); i++) | |
ed1f651b | 6319 | { |
ed1f651b RS |
6320 | int this_file_error = 0; |
6321 | ||
6322 | /* Tell do_spec what to substitute for %i. */ | |
6323 | ||
ed1f651b | 6324 | input_file_number = i; |
512b62fb | 6325 | set_input (infiles[i].name); |
ed1f651b RS |
6326 | |
6327 | /* Use the same thing in %o, unless cp->spec says otherwise. */ | |
6328 | ||
6329 | outfiles[i] = input_filename; | |
6330 | ||
6331 | /* Figure out which compiler from the file's suffix. */ | |
6332 | ||
d1bd0ded GK |
6333 | if (! combine_inputs) |
6334 | input_file_compiler | |
6335 | = lookup_compiler (infiles[i].name, input_filename_length, | |
6336 | infiles[i].language); | |
589005ff | 6337 | |
a9374841 | 6338 | if (input_file_compiler) |
ed1f651b RS |
6339 | { |
6340 | /* Ok, we found an applicable compiler. Run its spec. */ | |
ed1f651b | 6341 | |
a9374841 | 6342 | if (input_file_compiler->spec[0] == '#') |
d644be7b ZW |
6343 | { |
6344 | error ("%s: %s compiler not installed on this system", | |
6345 | input_filename, &input_file_compiler->spec[1]); | |
6346 | this_file_error = 1; | |
6347 | } | |
6348 | else | |
6349 | { | |
6350 | value = do_spec (input_file_compiler->spec); | |
6351 | if (value < 0) | |
6352 | this_file_error = 1; | |
6353 | } | |
ed1f651b RS |
6354 | } |
6355 | ||
6356 | /* If this file's name does not contain a recognized suffix, | |
6357 | record it as explicit linker input. */ | |
6358 | ||
6359 | else | |
6360 | explicit_link_files[i] = 1; | |
6361 | ||
6362 | /* Clear the delete-on-failure queue, deleting the files in it | |
6363 | if this compilation failed. */ | |
6364 | ||
6365 | if (this_file_error) | |
6366 | { | |
6367 | delete_failure_queue (); | |
6368 | error_count++; | |
6369 | } | |
6370 | /* If this compilation succeeded, don't delete those files later. */ | |
6371 | clear_failure_queue (); | |
6372 | } | |
6373 | ||
512b62fb JM |
6374 | /* Reset the output file name to the first input file name, for use |
6375 | with %b in LINK_SPEC on a target that prefers not to emit a.out | |
6376 | by default. */ | |
6377 | if (n_infiles > 0) | |
6378 | set_input (infiles[0].name); | |
6379 | ||
15c5edb9 TT |
6380 | if (error_count == 0) |
6381 | { | |
6382 | /* Make sure INPUT_FILE_NUMBER points to first available open | |
6383 | slot. */ | |
6384 | input_file_number = n_infiles; | |
6385 | if (lang_specific_pre_link ()) | |
6386 | error_count++; | |
6387 | } | |
f271358e | 6388 | |
17211ab5 GK |
6389 | /* Determine if there are any linker input files. */ |
6390 | num_linker_inputs = 0; | |
6391 | for (i = 0; (int) i < n_infiles; i++) | |
6392 | if (explicit_link_files[i] || outfiles[i] != NULL) | |
6393 | num_linker_inputs++; | |
6394 | ||
ed1f651b RS |
6395 | /* Run ld to link all the compiler output files. */ |
6396 | ||
17211ab5 | 6397 | if (num_linker_inputs > 0 && error_count == 0) |
ed1f651b RS |
6398 | { |
6399 | int tmp = execution_count; | |
b3865ca9 | 6400 | |
9218435e | 6401 | /* We'll use ld if we can't find collect2. */ |
10da1131 BM |
6402 | if (! strcmp (linker_name_spec, "collect2")) |
6403 | { | |
5bbcd587 | 6404 | char *s = find_a_file (&exec_prefixes, "collect2", X_OK, 0); |
10da1131 BM |
6405 | if (s == NULL) |
6406 | linker_name_spec = "ld"; | |
6407 | } | |
b3865ca9 RS |
6408 | /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables |
6409 | for collect. */ | |
512b62fb JM |
6410 | putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH"); |
6411 | putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV); | |
b3865ca9 | 6412 | |
ed1f651b RS |
6413 | value = do_spec (link_command_spec); |
6414 | if (value < 0) | |
6415 | error_count = 1; | |
6416 | linker_was_run = (tmp != execution_count); | |
6417 | } | |
6418 | ||
ed1f651b RS |
6419 | /* If options said don't run linker, |
6420 | complain about input files to be given to the linker. */ | |
6421 | ||
76e5b312 | 6422 | if (! linker_was_run && error_count == 0) |
d25a45d4 | 6423 | for (i = 0; (int) i < n_infiles; i++) |
ed1f651b | 6424 | if (explicit_link_files[i]) |
2e44948d | 6425 | error ("%s: linker input file unused because linking not done", |
ed1f651b RS |
6426 | outfiles[i]); |
6427 | ||
6428 | /* Delete some or all of the temporary files we made. */ | |
6429 | ||
6430 | if (error_count) | |
6431 | delete_failure_queue (); | |
6432 | delete_temp_files (); | |
6433 | ||
b8468bc7 NC |
6434 | if (print_help_list) |
6435 | { | |
5e4adfba | 6436 | printf (("\nFor bug reporting instructions, please see:\n")); |
a976603e | 6437 | printf ("%s\n", bug_report_url); |
b8468bc7 | 6438 | } |
9218435e | 6439 | |
14a774a9 RK |
6440 | return (signal_count != 0 ? 2 |
6441 | : error_count > 0 ? (pass_exit_codes ? greatest_status : 1) | |
6442 | : 0); | |
ed1f651b RS |
6443 | } |
6444 | ||
6445 | /* Find the proper compilation spec for the file name NAME, | |
004fd4d5 | 6446 | whose length is LENGTH. LANGUAGE is the specified language, |
e5e809f4 | 6447 | or 0 if this file is to be passed to the linker. */ |
ed1f651b RS |
6448 | |
6449 | static struct compiler * | |
1d088dee | 6450 | lookup_compiler (const char *name, size_t length, const char *language) |
ed1f651b RS |
6451 | { |
6452 | struct compiler *cp; | |
6453 | ||
3ac63d94 | 6454 | /* If this was specified by the user to be a linker input, indicate that. */ |
e5e809f4 JL |
6455 | if (language != 0 && language[0] == '*') |
6456 | return 0; | |
6457 | ||
6458 | /* Otherwise, look for the language, if one is spec'd. */ | |
ed1f651b RS |
6459 | if (language != 0) |
6460 | { | |
6461 | for (cp = compilers + n_compilers - 1; cp >= compilers; cp--) | |
e5e809f4 JL |
6462 | if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language)) |
6463 | return cp; | |
6464 | ||
ed1f651b | 6465 | error ("language %s not recognized", language); |
e5e809f4 | 6466 | return 0; |
ed1f651b RS |
6467 | } |
6468 | ||
6469 | /* Look for a suffix. */ | |
6470 | for (cp = compilers + n_compilers - 1; cp >= compilers; cp--) | |
6471 | { | |
4cf3301c RS |
6472 | if (/* The suffix `-' matches only the file name `-'. */ |
6473 | (!strcmp (cp->suffix, "-") && !strcmp (name, "-")) | |
e5e809f4 JL |
6474 | || (strlen (cp->suffix) < length |
6475 | /* See if the suffix matches the end of NAME. */ | |
e5e809f4 JL |
6476 | && !strcmp (cp->suffix, |
6477 | name + length - strlen (cp->suffix)) | |
e5e809f4 | 6478 | )) |
589005ff | 6479 | break; |
03bf1c28 | 6480 | } |
e5e809f4 | 6481 | |
03bf1c28 MK |
6482 | #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM) |
6483 | /* look again, but case-insensitively this time. */ | |
6484 | if (cp < compilers) | |
6485 | for (cp = compilers + n_compilers - 1; cp >= compilers; cp--) | |
6486 | { | |
6487 | if (/* The suffix `-' matches only the file name `-'. */ | |
6488 | (!strcmp (cp->suffix, "-") && !strcmp (name, "-")) | |
6489 | || (strlen (cp->suffix) < length | |
6490 | /* See if the suffix matches the end of NAME. */ | |
6491 | && ((!strcmp (cp->suffix, | |
6492 | name + length - strlen (cp->suffix)) | |
6493 | || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")) | |
6494 | && !strcasecmp (cp->suffix, | |
6495 | name + length - strlen (cp->suffix))) | |
6496 | )) | |
6497 | break; | |
6498 | } | |
6499 | #endif | |
6500 | ||
03bf1c28 MK |
6501 | if (cp >= compilers) |
6502 | { | |
ea414c97 ZW |
6503 | if (cp->spec[0] != '@') |
6504 | /* A non-alias entry: return it. */ | |
6505 | return cp; | |
9218435e | 6506 | |
ea414c97 ZW |
6507 | /* An alias entry maps a suffix to a language. |
6508 | Search for the language; pass 0 for NAME and LENGTH | |
6509 | to avoid infinite recursion if language not found. */ | |
6496a589 | 6510 | return lookup_compiler (NULL, 0, cp->spec + 1); |
ed1f651b | 6511 | } |
ed1f651b RS |
6512 | return 0; |
6513 | } | |
6514 | \f | |
ed1f651b | 6515 | static char * |
1d088dee | 6516 | save_string (const char *s, int len) |
ed1f651b | 6517 | { |
b3694847 | 6518 | char *result = xmalloc (len + 1); |
ed1f651b | 6519 | |
da61dec9 | 6520 | memcpy (result, s, len); |
ed1f651b RS |
6521 | result[len] = 0; |
6522 | return result; | |
6523 | } | |
6524 | ||
d991c721 | 6525 | void |
1d088dee | 6526 | pfatal_with_name (const char *name) |
ed1f651b | 6527 | { |
ab87f8c8 JL |
6528 | perror_with_name (name); |
6529 | delete_temp_files (); | |
6530 | exit (1); | |
ed1f651b RS |
6531 | } |
6532 | ||
6533 | static void | |
1d088dee | 6534 | perror_with_name (const char *name) |
ed1f651b | 6535 | { |
ed35cf6e | 6536 | error ("%s: %s", name, xstrerror (errno)); |
ed1f651b RS |
6537 | } |
6538 | ||
6539 | static void | |
1d088dee | 6540 | pfatal_pexecute (const char *errmsg_fmt, const char *errmsg_arg) |
ed1f651b | 6541 | { |
c10d53dd DE |
6542 | if (errmsg_arg) |
6543 | { | |
ab87f8c8 JL |
6544 | int save_errno = errno; |
6545 | ||
c10d53dd DE |
6546 | /* Space for trailing '\0' is in %s. */ |
6547 | char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg)); | |
6548 | sprintf (msg, errmsg_fmt, errmsg_arg); | |
6549 | errmsg_fmt = msg; | |
ab87f8c8 JL |
6550 | |
6551 | errno = save_errno; | |
c10d53dd DE |
6552 | } |
6553 | ||
ab87f8c8 | 6554 | pfatal_with_name (errmsg_fmt); |
ed1f651b RS |
6555 | } |
6556 | ||
f9da5064 | 6557 | /* Output an error message and exit. */ |
ed1f651b RS |
6558 | |
6559 | void | |
1d088dee | 6560 | fancy_abort (void) |
ed1f651b | 6561 | { |
c725bd79 | 6562 | fatal ("internal gcc abort"); |
ed1f651b RS |
6563 | } |
6564 | \f | |
f9da5064 | 6565 | /* Output an error message and exit. */ |
ed1f651b | 6566 | |
9257393c | 6567 | void |
e34d07f2 | 6568 | fatal (const char *msgid, ...) |
ed1f651b | 6569 | { |
e34d07f2 | 6570 | va_list ap; |
1d088dee | 6571 | |
e34d07f2 | 6572 | va_start (ap, msgid); |
ed1f651b | 6573 | |
ed1f651b | 6574 | fprintf (stderr, "%s: ", programname); |
ab87f8c8 | 6575 | vfprintf (stderr, _(msgid), ap); |
e34d07f2 | 6576 | va_end (ap); |
ed1f651b RS |
6577 | fprintf (stderr, "\n"); |
6578 | delete_temp_files (); | |
6579 | exit (1); | |
6580 | } | |
6581 | ||
d991c721 | 6582 | void |
e34d07f2 | 6583 | error (const char *msgid, ...) |
ed1f651b | 6584 | { |
e34d07f2 | 6585 | va_list ap; |
1d088dee | 6586 | |
e34d07f2 | 6587 | va_start (ap, msgid); |
ed1f651b | 6588 | fprintf (stderr, "%s: ", programname); |
ab87f8c8 | 6589 | vfprintf (stderr, _(msgid), ap); |
e34d07f2 | 6590 | va_end (ap); |
ed1f651b RS |
6591 | |
6592 | fprintf (stderr, "\n"); | |
6593 | } | |
ab87f8c8 JL |
6594 | |
6595 | static void | |
e34d07f2 | 6596 | notice (const char *msgid, ...) |
ab87f8c8 | 6597 | { |
e34d07f2 | 6598 | va_list ap; |
1d088dee | 6599 | |
e34d07f2 | 6600 | va_start (ap, msgid); |
ab87f8c8 | 6601 | vfprintf (stderr, _(msgid), ap); |
e34d07f2 | 6602 | va_end (ap); |
ab87f8c8 | 6603 | } |
ed1f651b | 6604 | \f |
4977bab6 | 6605 | static inline void |
1d088dee | 6606 | validate_switches_from_spec (const char *spec) |
4977bab6 ZW |
6607 | { |
6608 | const char *p = spec; | |
6609 | char c; | |
6610 | while ((c = *p++)) | |
6611 | if (c == '%' && (*p == '{' || *p == '<' || (*p == 'W' && *++p == '{'))) | |
6612 | /* We have a switch spec. */ | |
6613 | p = validate_switches (p + 1); | |
6614 | } | |
6615 | ||
ed1f651b | 6616 | static void |
1d088dee | 6617 | validate_all_switches (void) |
ed1f651b RS |
6618 | { |
6619 | struct compiler *comp; | |
b3865ca9 | 6620 | struct spec_list *spec; |
ed1f651b | 6621 | |
ea414c97 | 6622 | for (comp = compilers; comp->spec; comp++) |
4977bab6 | 6623 | validate_switches_from_spec (comp->spec); |
ed1f651b | 6624 | |
3ac63d94 | 6625 | /* Look through the linked list of specs read from the specs file. */ |
d25a45d4 | 6626 | for (spec = specs; spec; spec = spec->next) |
4977bab6 | 6627 | validate_switches_from_spec (*spec->ptr_spec); |
b3865ca9 | 6628 | |
4977bab6 | 6629 | validate_switches_from_spec (link_command_spec); |
ed1f651b RS |
6630 | } |
6631 | ||
6632 | /* Look at the switch-name that comes after START | |
6633 | and mark as valid all supplied switches that match it. */ | |
6634 | ||
4977bab6 | 6635 | static const char * |
1d088dee | 6636 | validate_switches (const char *start) |
ed1f651b | 6637 | { |
b3694847 | 6638 | const char *p = start; |
4977bab6 ZW |
6639 | const char *atom; |
6640 | size_t len; | |
b3694847 | 6641 | int i; |
4977bab6 ZW |
6642 | bool suffix = false; |
6643 | bool starred = false; | |
1d088dee | 6644 | |
4977bab6 | 6645 | #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0) |
1d088dee | 6646 | |
10ebf5fe | 6647 | next_member: |
4977bab6 ZW |
6648 | SKIP_WHITE (); |
6649 | ||
ed1f651b | 6650 | if (*p == '!') |
4977bab6 | 6651 | p++; |
ed1f651b | 6652 | |
4977bab6 | 6653 | SKIP_WHITE (); |
ed1f651b | 6654 | if (*p == '.') |
4977bab6 | 6655 | suffix = true, p++; |
ed1f651b | 6656 | |
4977bab6 ZW |
6657 | atom = p; |
6658 | while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '=' | |
7a975113 | 6659 | || *p == ',' || *p == '.' || *p == '@') |
d25a45d4 | 6660 | p++; |
4977bab6 | 6661 | len = p - atom; |
ed1f651b | 6662 | |
4977bab6 ZW |
6663 | if (*p == '*') |
6664 | starred = true, p++; | |
6665 | ||
6666 | SKIP_WHITE (); | |
6667 | ||
6668 | if (!suffix) | |
ed1f651b RS |
6669 | { |
6670 | /* Mark all matching switches as valid. */ | |
ed1f651b | 6671 | for (i = 0; i < n_switches; i++) |
4977bab6 ZW |
6672 | if (!strncmp (switches[i].part1, atom, len) |
6673 | && (starred || switches[i].part1[len] == 0)) | |
ab87f8c8 | 6674 | switches[i].validated = 1; |
ed1f651b | 6675 | } |
4977bab6 | 6676 | |
5a0ba8c9 LJR |
6677 | if (*p) p++; |
6678 | if (*p && (p[-1] == '|' || p[-1] == '&')) | |
4977bab6 ZW |
6679 | goto next_member; |
6680 | ||
5a0ba8c9 | 6681 | if (*p && p[-1] == ':') |
ed1f651b | 6682 | { |
4977bab6 | 6683 | while (*p && *p != ';' && *p != '}') |
ed1f651b | 6684 | { |
4977bab6 ZW |
6685 | if (*p == '%') |
6686 | { | |
6687 | p++; | |
6688 | if (*p == '{' || *p == '<') | |
6689 | p = validate_switches (p+1); | |
6690 | else if (p[0] == 'W' && p[1] == '{') | |
6691 | p = validate_switches (p+2); | |
6692 | } | |
e17aafd1 GK |
6693 | else |
6694 | p++; | |
ed1f651b | 6695 | } |
4977bab6 | 6696 | |
5a0ba8c9 LJR |
6697 | if (*p) p++; |
6698 | if (*p && p[-1] == ';') | |
4977bab6 | 6699 | goto next_member; |
ed1f651b | 6700 | } |
10ebf5fe | 6701 | |
4977bab6 ZW |
6702 | return p; |
6703 | #undef SKIP_WHITE | |
ed1f651b | 6704 | } |
60103a34 | 6705 | \f |
5bbcd587 JJ |
6706 | struct mdswitchstr |
6707 | { | |
6708 | const char *str; | |
6709 | int len; | |
6710 | }; | |
6711 | ||
6712 | static struct mdswitchstr *mdswitches; | |
6713 | static int n_mdswitches; | |
6714 | ||
961b7009 | 6715 | /* Check whether a particular argument was used. The first time we |
956d6950 | 6716 | canonicalize the switches to keep only the ones we care about. */ |
60103a34 DE |
6717 | |
6718 | static int | |
1d088dee | 6719 | used_arg (const char *p, int len) |
60103a34 | 6720 | { |
3ac63d94 NC |
6721 | struct mswitchstr |
6722 | { | |
3b304f5b ZW |
6723 | const char *str; |
6724 | const char *replace; | |
961b7009 MM |
6725 | int len; |
6726 | int rep_len; | |
6727 | }; | |
6728 | ||
6729 | static struct mswitchstr *mswitches; | |
6730 | static int n_mswitches; | |
6731 | int i, j; | |
6732 | ||
6733 | if (!mswitches) | |
6734 | { | |
6735 | struct mswitchstr *matches; | |
3b304f5b | 6736 | const char *q; |
c8c2dcdc | 6737 | int cnt = 0; |
961b7009 | 6738 | |
d25a45d4 KH |
6739 | /* Break multilib_matches into the component strings of string |
6740 | and replacement string. */ | |
1a0bdd29 RK |
6741 | for (q = multilib_matches; *q != '\0'; q++) |
6742 | if (*q == ';') | |
961b7009 MM |
6743 | cnt++; |
6744 | ||
703ad42b | 6745 | matches = alloca ((sizeof (struct mswitchstr)) * cnt); |
961b7009 MM |
6746 | i = 0; |
6747 | q = multilib_matches; | |
6748 | while (*q != '\0') | |
6749 | { | |
6750 | matches[i].str = q; | |
6751 | while (*q != ' ') | |
6752 | { | |
6753 | if (*q == '\0') | |
6754 | abort (); | |
6755 | q++; | |
6756 | } | |
961b7009 | 6757 | matches[i].len = q - matches[i].str; |
60103a34 | 6758 | |
961b7009 MM |
6759 | matches[i].replace = ++q; |
6760 | while (*q != ';' && *q != '\0') | |
6761 | { | |
6762 | if (*q == ' ') | |
6763 | abort (); | |
6764 | q++; | |
6765 | } | |
6766 | matches[i].rep_len = q - matches[i].replace; | |
6767 | i++; | |
83a0c799 ZW |
6768 | if (*q == ';') |
6769 | q++; | |
961b7009 | 6770 | } |
60103a34 | 6771 | |
71591a1d JW |
6772 | /* Now build a list of the replacement string for switches that we care |
6773 | about. Make sure we allocate at least one entry. This prevents | |
6774 | xmalloc from calling fatal, and prevents us from re-executing this | |
6775 | block of code. */ | |
6776 | mswitches | |
703ad42b | 6777 | = xmalloc (sizeof (struct mswitchstr) |
5bbcd587 | 6778 | * (n_mdswitches + (n_switches ? n_switches : 1))); |
961b7009 MM |
6779 | for (i = 0; i < n_switches; i++) |
6780 | { | |
6781 | int xlen = strlen (switches[i].part1); | |
6782 | for (j = 0; j < cnt; j++) | |
3b304f5b ZW |
6783 | if (xlen == matches[j].len |
6784 | && ! strncmp (switches[i].part1, matches[j].str, xlen)) | |
961b7009 MM |
6785 | { |
6786 | mswitches[n_mswitches].str = matches[j].replace; | |
6787 | mswitches[n_mswitches].len = matches[j].rep_len; | |
9218435e | 6788 | mswitches[n_mswitches].replace = (char *) 0; |
961b7009 MM |
6789 | mswitches[n_mswitches].rep_len = 0; |
6790 | n_mswitches++; | |
6791 | break; | |
6792 | } | |
6793 | } | |
5bbcd587 JJ |
6794 | |
6795 | /* Add MULTILIB_DEFAULTS switches too, as long as they were not present | |
6796 | on the command line nor any options mutually incompatible with | |
6797 | them. */ | |
6798 | for (i = 0; i < n_mdswitches; i++) | |
6799 | { | |
6800 | const char *r; | |
6801 | ||
6802 | for (q = multilib_options; *q != '\0'; q++) | |
6803 | { | |
6804 | while (*q == ' ') | |
6805 | q++; | |
6806 | ||
6807 | r = q; | |
6808 | while (strncmp (q, mdswitches[i].str, mdswitches[i].len) != 0 | |
6809 | || strchr (" /", q[mdswitches[i].len]) == NULL) | |
6810 | { | |
6811 | while (*q != ' ' && *q != '/' && *q != '\0') | |
6812 | q++; | |
6813 | if (*q != '/') | |
6814 | break; | |
6815 | q++; | |
6816 | } | |
6817 | ||
6818 | if (*q != ' ' && *q != '\0') | |
6819 | { | |
6820 | while (*r != ' ' && *r != '\0') | |
6821 | { | |
6822 | q = r; | |
6823 | while (*q != ' ' && *q != '/' && *q != '\0') | |
6824 | q++; | |
6825 | ||
6826 | if (used_arg (r, q - r)) | |
6827 | break; | |
6828 | ||
6829 | if (*q != '/') | |
6830 | { | |
6831 | mswitches[n_mswitches].str = mdswitches[i].str; | |
6832 | mswitches[n_mswitches].len = mdswitches[i].len; | |
6833 | mswitches[n_mswitches].replace = (char *) 0; | |
6834 | mswitches[n_mswitches].rep_len = 0; | |
6835 | n_mswitches++; | |
6836 | break; | |
6837 | } | |
6838 | ||
6839 | r = q + 1; | |
6840 | } | |
6841 | break; | |
6842 | } | |
6843 | } | |
6844 | } | |
961b7009 | 6845 | } |
03c42484 | 6846 | |
961b7009 MM |
6847 | for (i = 0; i < n_mswitches; i++) |
6848 | if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len)) | |
6849 | return 1; | |
03c42484 | 6850 | |
961b7009 MM |
6851 | return 0; |
6852 | } | |
03c42484 RK |
6853 | |
6854 | static int | |
1d088dee | 6855 | default_arg (const char *p, int len) |
03c42484 | 6856 | { |
5bbcd587 | 6857 | int i; |
e29ef920 | 6858 | |
5bbcd587 JJ |
6859 | for (i = 0; i < n_mdswitches; i++) |
6860 | if (len == mdswitches[i].len && ! strncmp (p, mdswitches[i].str, len)) | |
6861 | return 1; | |
03c42484 RK |
6862 | |
6863 | return 0; | |
6864 | } | |
6865 | ||
0a8d6618 BC |
6866 | /* Work out the subdirectory to use based on the options. The format of |
6867 | multilib_select is a list of elements. Each element is a subdirectory | |
6868 | name followed by a list of options followed by a semicolon. The format | |
6869 | of multilib_exclusions is the same, but without the preceding | |
6870 | directory. First gcc will check the exclusions, if none of the options | |
6871 | beginning with an exclamation point are present, and all of the other | |
6872 | options are present, then we will ignore this completely. Passing | |
6873 | that, gcc will consider each multilib_select in turn using the same | |
6874 | rules for matching the options. If a match is found, that subdirectory | |
6875 | will be used. */ | |
60103a34 DE |
6876 | |
6877 | static void | |
1d088dee | 6878 | set_multilib_dir (void) |
60103a34 | 6879 | { |
3b304f5b | 6880 | const char *p; |
3ac63d94 | 6881 | unsigned int this_path_len; |
3b304f5b | 6882 | const char *this_path, *this_arg; |
5bbcd587 | 6883 | const char *start, *end; |
03c42484 | 6884 | int not_arg; |
5bbcd587 JJ |
6885 | int ok, ndfltok, first; |
6886 | ||
6887 | n_mdswitches = 0; | |
6888 | start = multilib_defaults; | |
6889 | while (*start == ' ' || *start == '\t') | |
6890 | start++; | |
6891 | while (*start != '\0') | |
6892 | { | |
6893 | n_mdswitches++; | |
6894 | while (*start != ' ' && *start != '\t' && *start != '\0') | |
6895 | start++; | |
6896 | while (*start == ' ' || *start == '\t') | |
6897 | start++; | |
6898 | } | |
6899 | ||
6900 | if (n_mdswitches) | |
6901 | { | |
6902 | int i = 0; | |
6903 | ||
703ad42b | 6904 | mdswitches = xmalloc (sizeof (struct mdswitchstr) * n_mdswitches); |
5bbcd587 JJ |
6905 | for (start = multilib_defaults; *start != '\0'; start = end + 1) |
6906 | { | |
6907 | while (*start == ' ' || *start == '\t') | |
6908 | start++; | |
6909 | ||
6910 | if (*start == '\0') | |
6911 | break; | |
1d088dee | 6912 | |
5bbcd587 JJ |
6913 | for (end = start + 1; |
6914 | *end != ' ' && *end != '\t' && *end != '\0'; end++) | |
6915 | ; | |
6916 | ||
6917 | obstack_grow (&multilib_obstack, start, end - start); | |
6918 | obstack_1grow (&multilib_obstack, 0); | |
6919 | mdswitches[i].str = obstack_finish (&multilib_obstack); | |
6920 | mdswitches[i++].len = end - start; | |
6921 | ||
6922 | if (*end == '\0') | |
6923 | break; | |
6924 | } | |
6925 | } | |
60103a34 | 6926 | |
0a8d6618 BC |
6927 | p = multilib_exclusions; |
6928 | while (*p != '\0') | |
6929 | { | |
6930 | /* Ignore newlines. */ | |
6931 | if (*p == '\n') | |
d25a45d4 KH |
6932 | { |
6933 | ++p; | |
6934 | continue; | |
6935 | } | |
0a8d6618 BC |
6936 | |
6937 | /* Check the arguments. */ | |
6938 | ok = 1; | |
6939 | while (*p != ';') | |
d25a45d4 KH |
6940 | { |
6941 | if (*p == '\0') | |
6942 | abort (); | |
6943 | ||
6944 | if (! ok) | |
6945 | { | |
6946 | ++p; | |
6947 | continue; | |
6948 | } | |
6949 | ||
6950 | this_arg = p; | |
6951 | while (*p != ' ' && *p != ';') | |
6952 | { | |
6953 | if (*p == '\0') | |
6954 | abort (); | |
6955 | ++p; | |
6956 | } | |
6957 | ||
6958 | if (*this_arg != '!') | |
6959 | not_arg = 0; | |
6960 | else | |
6961 | { | |
6962 | not_arg = 1; | |
6963 | ++this_arg; | |
6964 | } | |
9218435e | 6965 | |
0a8d6618 BC |
6966 | ok = used_arg (this_arg, p - this_arg); |
6967 | if (not_arg) | |
6968 | ok = ! ok; | |
6969 | ||
d25a45d4 KH |
6970 | if (*p == ' ') |
6971 | ++p; | |
6972 | } | |
0a8d6618 BC |
6973 | |
6974 | if (ok) | |
3ac63d94 | 6975 | return; |
0a8d6618 BC |
6976 | |
6977 | ++p; | |
6978 | } | |
6979 | ||
5bbcd587 | 6980 | first = 1; |
0a8d6618 | 6981 | p = multilib_select; |
60103a34 DE |
6982 | while (*p != '\0') |
6983 | { | |
6984 | /* Ignore newlines. */ | |
6985 | if (*p == '\n') | |
6986 | { | |
6987 | ++p; | |
6988 | continue; | |
6989 | } | |
6990 | ||
6991 | /* Get the initial path. */ | |
6992 | this_path = p; | |
6993 | while (*p != ' ') | |
6994 | { | |
6995 | if (*p == '\0') | |
6996 | abort (); | |
6997 | ++p; | |
6998 | } | |
6999 | this_path_len = p - this_path; | |
7000 | ||
7001 | /* Check the arguments. */ | |
03c42484 | 7002 | ok = 1; |
5bbcd587 | 7003 | ndfltok = 1; |
60103a34 DE |
7004 | ++p; |
7005 | while (*p != ';') | |
7006 | { | |
7007 | if (*p == '\0') | |
7008 | abort (); | |
7009 | ||
03c42484 | 7010 | if (! ok) |
60103a34 DE |
7011 | { |
7012 | ++p; | |
7013 | continue; | |
7014 | } | |
7015 | ||
7016 | this_arg = p; | |
7017 | while (*p != ' ' && *p != ';') | |
7018 | { | |
7019 | if (*p == '\0') | |
7020 | abort (); | |
7021 | ++p; | |
7022 | } | |
7023 | ||
03c42484 RK |
7024 | if (*this_arg != '!') |
7025 | not_arg = 0; | |
60103a34 | 7026 | else |
03c42484 RK |
7027 | { |
7028 | not_arg = 1; | |
7029 | ++this_arg; | |
7030 | } | |
7031 | ||
7032 | /* If this is a default argument, we can just ignore it. | |
7033 | This is true even if this_arg begins with '!'. Beginning | |
7034 | with '!' does not mean that this argument is necessarily | |
7035 | inappropriate for this library: it merely means that | |
7036 | there is a more specific library which uses this | |
7037 | argument. If this argument is a default, we need not | |
7038 | consider that more specific library. */ | |
5bbcd587 JJ |
7039 | ok = used_arg (this_arg, p - this_arg); |
7040 | if (not_arg) | |
7041 | ok = ! ok; | |
7042 | ||
7043 | if (! ok) | |
7044 | ndfltok = 0; | |
7045 | ||
7046 | if (default_arg (this_arg, p - this_arg)) | |
7047 | ok = 1; | |
60103a34 DE |
7048 | |
7049 | if (*p == ' ') | |
7050 | ++p; | |
7051 | } | |
7052 | ||
5bbcd587 | 7053 | if (ok && first) |
60103a34 DE |
7054 | { |
7055 | if (this_path_len != 1 | |
7056 | || this_path[0] != '.') | |
7057 | { | |
d25a45d4 | 7058 | char *new_multilib_dir = xmalloc (this_path_len + 1); |
5bbcd587 JJ |
7059 | char *q; |
7060 | ||
878f32c3 KG |
7061 | strncpy (new_multilib_dir, this_path, this_path_len); |
7062 | new_multilib_dir[this_path_len] = '\0'; | |
5bbcd587 JJ |
7063 | q = strchr (new_multilib_dir, ':'); |
7064 | if (q != NULL) | |
7065 | *q = '\0'; | |
878f32c3 | 7066 | multilib_dir = new_multilib_dir; |
60103a34 | 7067 | } |
5bbcd587 JJ |
7068 | first = 0; |
7069 | } | |
7070 | ||
7071 | if (ndfltok) | |
7072 | { | |
7073 | const char *q = this_path, *end = this_path + this_path_len; | |
7074 | ||
7075 | while (q < end && *q != ':') | |
7076 | q++; | |
c49d2df6 | 7077 | if (q < end) |
5bbcd587 JJ |
7078 | { |
7079 | char *new_multilib_os_dir = xmalloc (end - q); | |
c49d2df6 JJ |
7080 | memcpy (new_multilib_os_dir, q + 1, end - q - 1); |
7081 | new_multilib_os_dir[end - q - 1] = '\0'; | |
5bbcd587 JJ |
7082 | multilib_os_dir = new_multilib_os_dir; |
7083 | break; | |
7084 | } | |
60103a34 DE |
7085 | } |
7086 | ||
7087 | ++p; | |
9218435e | 7088 | } |
5bbcd587 JJ |
7089 | |
7090 | if (multilib_dir == NULL && multilib_os_dir != NULL | |
7091 | && strcmp (multilib_os_dir, ".") == 0) | |
7092 | { | |
7093 | free ((char *) multilib_os_dir); | |
7094 | multilib_os_dir = NULL; | |
7095 | } | |
7096 | else if (multilib_dir != NULL && multilib_os_dir == NULL) | |
7097 | multilib_os_dir = multilib_dir; | |
60103a34 DE |
7098 | } |
7099 | ||
7100 | /* Print out the multiple library subdirectory selection | |
7101 | information. This prints out a series of lines. Each line looks | |
7102 | like SUBDIRECTORY;@OPTION@OPTION, with as many options as is | |
7103 | required. Only the desired options are printed out, the negative | |
7104 | matches. The options are print without a leading dash. There are | |
7105 | no spaces to make it easy to use the information in the shell. | |
7106 | Each subdirectory is printed only once. This assumes the ordering | |
0a8d6618 BC |
7107 | generated by the genmultilib script. Also, we leave out ones that match |
7108 | the exclusions. */ | |
60103a34 DE |
7109 | |
7110 | static void | |
1d088dee | 7111 | print_multilib_info (void) |
60103a34 | 7112 | { |
3b304f5b ZW |
7113 | const char *p = multilib_select; |
7114 | const char *last_path = 0, *this_path; | |
03c42484 | 7115 | int skip; |
3ac63d94 | 7116 | unsigned int last_path_len = 0; |
60103a34 DE |
7117 | |
7118 | while (*p != '\0') | |
7119 | { | |
0a8d6618 | 7120 | skip = 0; |
60103a34 DE |
7121 | /* Ignore newlines. */ |
7122 | if (*p == '\n') | |
7123 | { | |
7124 | ++p; | |
7125 | continue; | |
7126 | } | |
7127 | ||
7128 | /* Get the initial path. */ | |
7129 | this_path = p; | |
7130 | while (*p != ' ') | |
7131 | { | |
7132 | if (*p == '\0') | |
7133 | abort (); | |
7134 | ++p; | |
7135 | } | |
7136 | ||
c49d2df6 JJ |
7137 | /* When --disable-multilib was used but target defines |
7138 | MULTILIB_OSDIRNAMES, entries starting with .: are there just | |
7139 | to find multilib_os_dir, so skip them from output. */ | |
7140 | if (this_path[0] == '.' && this_path[1] == ':') | |
7141 | skip = 1; | |
7142 | ||
0a8d6618 BC |
7143 | /* Check for matches with the multilib_exclusions. We don't bother |
7144 | with the '!' in either list. If any of the exclusion rules match | |
7145 | all of its options with the select rule, we skip it. */ | |
d25a45d4 KH |
7146 | { |
7147 | const char *e = multilib_exclusions; | |
7148 | const char *this_arg; | |
0a8d6618 | 7149 | |
d25a45d4 KH |
7150 | while (*e != '\0') |
7151 | { | |
7152 | int m = 1; | |
7153 | /* Ignore newlines. */ | |
7154 | if (*e == '\n') | |
7155 | { | |
7156 | ++e; | |
7157 | continue; | |
7158 | } | |
0a8d6618 | 7159 | |
d25a45d4 KH |
7160 | /* Check the arguments. */ |
7161 | while (*e != ';') | |
7162 | { | |
7163 | const char *q; | |
7164 | int mp = 0; | |
0a8d6618 | 7165 | |
d25a45d4 KH |
7166 | if (*e == '\0') |
7167 | abort (); | |
9218435e | 7168 | |
d25a45d4 KH |
7169 | if (! m) |
7170 | { | |
7171 | ++e; | |
7172 | continue; | |
7173 | } | |
0a8d6618 | 7174 | |
d25a45d4 | 7175 | this_arg = e; |
9218435e | 7176 | |
d25a45d4 KH |
7177 | while (*e != ' ' && *e != ';') |
7178 | { | |
7179 | if (*e == '\0') | |
7180 | abort (); | |
7181 | ++e; | |
7182 | } | |
0a8d6618 | 7183 | |
d25a45d4 KH |
7184 | q = p + 1; |
7185 | while (*q != ';') | |
7186 | { | |
7187 | const char *arg; | |
7188 | int len = e - this_arg; | |
0a8d6618 | 7189 | |
d25a45d4 KH |
7190 | if (*q == '\0') |
7191 | abort (); | |
0a8d6618 | 7192 | |
d25a45d4 KH |
7193 | arg = q; |
7194 | ||
7195 | while (*q != ' ' && *q != ';') | |
7196 | { | |
7197 | if (*q == '\0') | |
7198 | abort (); | |
0a8d6618 | 7199 | ++q; |
d25a45d4 | 7200 | } |
0a8d6618 | 7201 | |
d25a45d4 KH |
7202 | if (! strncmp (arg, this_arg, (len < q - arg) ? q - arg : len) || |
7203 | default_arg (this_arg, e - this_arg)) | |
7204 | { | |
7205 | mp = 1; | |
7206 | break; | |
7207 | } | |
0a8d6618 | 7208 | |
d25a45d4 KH |
7209 | if (*q == ' ') |
7210 | ++q; | |
7211 | } | |
9218435e | 7212 | |
d25a45d4 KH |
7213 | if (! mp) |
7214 | m = 0; | |
0a8d6618 | 7215 | |
d25a45d4 KH |
7216 | if (*e == ' ') |
7217 | ++e; | |
7218 | } | |
7219 | ||
7220 | if (m) | |
7221 | { | |
7222 | skip = 1; | |
7223 | break; | |
7224 | } | |
7225 | ||
7226 | if (*e != '\0') | |
7227 | ++e; | |
7228 | } | |
7229 | } | |
0a8d6618 BC |
7230 | |
7231 | if (! skip) | |
d25a45d4 KH |
7232 | { |
7233 | /* If this is a duplicate, skip it. */ | |
7234 | skip = (last_path != 0 && (unsigned int) (p - this_path) == last_path_len | |
7235 | && ! strncmp (last_path, this_path, last_path_len)); | |
60103a34 | 7236 | |
d25a45d4 KH |
7237 | last_path = this_path; |
7238 | last_path_len = p - this_path; | |
0a8d6618 | 7239 | } |
60103a34 | 7240 | |
03c42484 RK |
7241 | /* If this directory requires any default arguments, we can skip |
7242 | it. We will already have printed a directory identical to | |
7243 | this one which does not require that default argument. */ | |
7244 | if (! skip) | |
7245 | { | |
3b304f5b | 7246 | const char *q; |
03c42484 RK |
7247 | |
7248 | q = p + 1; | |
7249 | while (*q != ';') | |
7250 | { | |
3b304f5b | 7251 | const char *arg; |
03c42484 RK |
7252 | |
7253 | if (*q == '\0') | |
7254 | abort (); | |
7255 | ||
7256 | if (*q == '!') | |
7257 | arg = NULL; | |
7258 | else | |
7259 | arg = q; | |
7260 | ||
7261 | while (*q != ' ' && *q != ';') | |
7262 | { | |
7263 | if (*q == '\0') | |
7264 | abort (); | |
7265 | ++q; | |
7266 | } | |
7267 | ||
7268 | if (arg != NULL | |
7269 | && default_arg (arg, q - arg)) | |
7270 | { | |
7271 | skip = 1; | |
7272 | break; | |
7273 | } | |
7274 | ||
7275 | if (*q == ' ') | |
7276 | ++q; | |
7277 | } | |
7278 | } | |
7279 | ||
60103a34 DE |
7280 | if (! skip) |
7281 | { | |
3b304f5b | 7282 | const char *p1; |
60103a34 | 7283 | |
5bbcd587 | 7284 | for (p1 = last_path; p1 < p && *p1 != ':'; p1++) |
60103a34 DE |
7285 | putchar (*p1); |
7286 | putchar (';'); | |
7287 | } | |
7288 | ||
7289 | ++p; | |
7290 | while (*p != ';') | |
7291 | { | |
7292 | int use_arg; | |
7293 | ||
7294 | if (*p == '\0') | |
7295 | abort (); | |
7296 | ||
7297 | if (skip) | |
7298 | { | |
7299 | ++p; | |
7300 | continue; | |
7301 | } | |
7302 | ||
7303 | use_arg = *p != '!'; | |
7304 | ||
7305 | if (use_arg) | |
7306 | putchar ('@'); | |
7307 | ||
7308 | while (*p != ' ' && *p != ';') | |
7309 | { | |
7310 | if (*p == '\0') | |
7311 | abort (); | |
7312 | if (use_arg) | |
7313 | putchar (*p); | |
7314 | ++p; | |
7315 | } | |
7316 | ||
7317 | if (*p == ' ') | |
7318 | ++p; | |
7319 | } | |
7320 | ||
7321 | if (! skip) | |
961b7009 | 7322 | { |
3ac63d94 | 7323 | /* If there are extra options, print them now. */ |
961b7009 MM |
7324 | if (multilib_extra && *multilib_extra) |
7325 | { | |
7326 | int print_at = TRUE; | |
3b304f5b | 7327 | const char *q; |
961b7009 MM |
7328 | |
7329 | for (q = multilib_extra; *q != '\0'; q++) | |
7330 | { | |
7331 | if (*q == ' ') | |
7332 | print_at = TRUE; | |
7333 | else | |
7334 | { | |
7335 | if (print_at) | |
7336 | putchar ('@'); | |
7337 | putchar (*q); | |
7338 | print_at = FALSE; | |
7339 | } | |
7340 | } | |
7341 | } | |
9218435e | 7342 | |
961b7009 MM |
7343 | putchar ('\n'); |
7344 | } | |
60103a34 DE |
7345 | |
7346 | ++p; | |
7347 | } | |
7348 | } | |
f3226a90 JT |
7349 | \f |
7350 | /* if-exists built-in spec function. | |
7351 | ||
7352 | Checks to see if the file specified by the absolute pathname in | |
7353 | ARGS exists. Returns that pathname if found. | |
7354 | ||
7355 | The usual use for this function is to check for a library file | |
7356 | (whose name has been expanded with %s). */ | |
7357 | ||
7358 | static const char * | |
1d088dee | 7359 | if_exists_spec_function (int argc, const char **argv) |
f3226a90 JT |
7360 | { |
7361 | /* Must have only one argument. */ | |
3dce1408 | 7362 | if (argc == 1 && IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK)) |
f3226a90 JT |
7363 | return argv[0]; |
7364 | ||
7365 | return NULL; | |
7366 | } | |
152a5a9c JT |
7367 | |
7368 | /* if-exists-else built-in spec function. | |
7369 | ||
7370 | This is like if-exists, but takes an additional argument which | |
7371 | is returned if the first argument does not exist. */ | |
7372 | ||
7373 | static const char * | |
1d088dee | 7374 | if_exists_else_spec_function (int argc, const char **argv) |
152a5a9c JT |
7375 | { |
7376 | /* Must have exactly two arguments. */ | |
7377 | if (argc != 2) | |
7378 | return NULL; | |
7379 | ||
3dce1408 | 7380 | if (IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK)) |
152a5a9c JT |
7381 | return argv[0]; |
7382 | ||
7383 | return argv[1]; | |
7384 | } |