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1 | /* Compiler driver program that can handle many languages. | |
2 | Copyright (C) 1987, 89, 92-97, 1998 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GNU CC. | |
5 | ||
6 | GNU CC is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GNU CC is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU CC; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. | |
20 | ||
21 | This paragraph is here to try to keep Sun CC from dying. | |
22 | The number of chars here seems crucial!!!! */ | |
23 | ||
24 | /* This program is the user interface to the C compiler and possibly to | |
25 | other compilers. It is used because compilation is a complicated procedure | |
26 | which involves running several programs and passing temporary files between | |
27 | them, forwarding the users switches to those programs selectively, | |
28 | and deleting the temporary files at the end. | |
29 | ||
30 | CC recognizes how to compile each input file by suffixes in the file names. | |
31 | Once it knows which kind of compilation to perform, the procedure for | |
32 | compilation is specified by a string called a "spec". */ | |
33 | \f | |
34 | #include "config.h" | |
35 | #include "system.h" | |
36 | #include <signal.h> | |
37 | #include <sys/stat.h> | |
38 | ||
39 | #include "gansidecl.h" | |
40 | #include "obstack.h" | |
41 | ||
42 | ||
43 | /* ??? Need to find a GCC header to put these in. */ | |
44 | extern int pexecute PROTO ((const char *, char * const *, const char *, | |
45 | const char *, char **, char **, int)); | |
46 | extern int pwait PROTO ((int, int *, int)); | |
47 | extern char *update_path PROTO((char *, char *)); | |
48 | extern void set_std_prefix PROTO((char *, int)); | |
49 | /* Flag arguments to pexecute. */ | |
50 | #define PEXECUTE_FIRST 1 | |
51 | #define PEXECUTE_LAST 2 | |
52 | #define PEXECUTE_SEARCH 4 | |
53 | #define PEXECUTE_VERBOSE 8 | |
54 | ||
55 | #ifndef WIFSIGNALED | |
56 | #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f) | |
57 | #endif | |
58 | #ifndef WTERMSIG | |
59 | #define WTERMSIG(S) ((S) & 0x7f) | |
60 | #endif | |
61 | #ifndef WIFEXITED | |
62 | #define WIFEXITED(S) (((S) & 0xff) == 0) | |
63 | #endif | |
64 | #ifndef WEXITSTATUS | |
65 | #define WEXITSTATUS(S) (((S) & 0xff00) >> 8) | |
66 | #endif | |
67 | ||
68 | #ifdef VMS | |
69 | #define exit __posix_exit | |
70 | #endif | |
71 | ||
72 | #ifdef USG | |
73 | #define vfork fork | |
74 | #endif /* USG */ | |
75 | ||
76 | /* Test if something is a normal file. */ | |
77 | #ifndef S_ISREG | |
78 | #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) | |
79 | #endif | |
80 | ||
81 | /* Test if something is a directory. */ | |
82 | #ifndef S_ISDIR | |
83 | #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) | |
84 | #endif | |
85 | ||
86 | /* By default there is no special suffix for executables. */ | |
87 | #ifdef EXECUTABLE_SUFFIX | |
88 | #define HAVE_EXECUTABLE_SUFFIX | |
89 | #else | |
90 | #define EXECUTABLE_SUFFIX "" | |
91 | #endif | |
92 | ||
93 | /* By default, the suffix for object files is ".o". */ | |
94 | #ifdef OBJECT_SUFFIX | |
95 | #define HAVE_OBJECT_SUFFIX | |
96 | #else | |
97 | #define OBJECT_SUFFIX ".o" | |
98 | #endif | |
99 | ||
100 | /* By default, colon separates directories in a path. */ | |
101 | #ifndef PATH_SEPARATOR | |
102 | #define PATH_SEPARATOR ':' | |
103 | #endif | |
104 | ||
105 | #ifndef DIR_SEPARATOR | |
106 | #define DIR_SEPARATOR '/' | |
107 | #endif | |
108 | ||
109 | static char dir_separator_str[] = {DIR_SEPARATOR, 0}; | |
110 | ||
111 | #define obstack_chunk_alloc xmalloc | |
112 | #define obstack_chunk_free free | |
113 | ||
114 | #ifndef GET_ENVIRONMENT | |
115 | #define GET_ENVIRONMENT(ENV_VALUE,ENV_NAME) ENV_VALUE = getenv (ENV_NAME) | |
116 | #endif | |
117 | ||
118 | extern char *my_strerror PROTO((int)); | |
119 | ||
120 | #ifndef HAVE_KILL | |
121 | #define kill(p,s) raise(s) | |
122 | #endif | |
123 | ||
124 | /* If a stage of compilation returns an exit status >= 1, | |
125 | compilation of that file ceases. */ | |
126 | ||
127 | #define MIN_FATAL_STATUS 1 | |
128 | ||
129 | /* Flag saying to print the directories gcc will search through looking for | |
130 | programs, libraries, etc. */ | |
131 | ||
132 | static int print_search_dirs; | |
133 | ||
134 | /* Flag saying to print the full filename of this file | |
135 | as found through our usual search mechanism. */ | |
136 | ||
137 | static char *print_file_name = NULL; | |
138 | ||
139 | /* As print_file_name, but search for executable file. */ | |
140 | ||
141 | static char *print_prog_name = NULL; | |
142 | ||
143 | /* Flag saying to print the relative path we'd use to | |
144 | find libgcc.a given the current compiler flags. */ | |
145 | ||
146 | static int print_multi_directory; | |
147 | ||
148 | /* Flag saying to print the list of subdirectories and | |
149 | compiler flags used to select them in a standard form. */ | |
150 | ||
151 | static int print_multi_lib; | |
152 | ||
153 | /* Flag saying to print the command line options understood by gcc and its | |
154 | sub-processes. */ | |
155 | ||
156 | static int print_help_list; | |
157 | ||
158 | /* Flag indicating whether we should print the command and arguments */ | |
159 | ||
160 | static int verbose_flag; | |
161 | ||
162 | /* Nonzero means write "temp" files in source directory | |
163 | and use the source file's name in them, and don't delete them. */ | |
164 | ||
165 | static int save_temps_flag; | |
166 | ||
167 | /* The compiler version. */ | |
168 | ||
169 | static char *compiler_version; | |
170 | ||
171 | /* The target version specified with -V */ | |
172 | ||
173 | static char *spec_version = DEFAULT_TARGET_VERSION; | |
174 | ||
175 | /* The target machine specified with -b. */ | |
176 | ||
177 | static char *spec_machine = DEFAULT_TARGET_MACHINE; | |
178 | ||
179 | /* Nonzero if cross-compiling. | |
180 | When -b is used, the value comes from the `specs' file. */ | |
181 | ||
182 | #ifdef CROSS_COMPILE | |
183 | static char *cross_compile = "1"; | |
184 | #else | |
185 | static char *cross_compile = "0"; | |
186 | #endif | |
187 | ||
188 | /* The number of errors that have occurred; the link phase will not be | |
189 | run if this is non-zero. */ | |
190 | static int error_count = 0; | |
191 | ||
192 | /* This is the obstack which we use to allocate many strings. */ | |
193 | ||
194 | static struct obstack obstack; | |
195 | ||
196 | /* This is the obstack to build an environment variable to pass to | |
197 | collect2 that describes all of the relevant switches of what to | |
198 | pass the compiler in building the list of pointers to constructors | |
199 | and destructors. */ | |
200 | ||
201 | static struct obstack collect_obstack; | |
202 | ||
203 | extern char *version_string; | |
204 | ||
205 | /* Forward declaration for prototypes. */ | |
206 | struct path_prefix; | |
207 | ||
208 | static void init_spec PROTO((void)); | |
209 | static void read_specs PROTO((char *, int)); | |
210 | static void set_spec PROTO((char *, char *)); | |
211 | static struct compiler *lookup_compiler PROTO((char *, size_t, char *)); | |
212 | static char *build_search_list PROTO((struct path_prefix *, char *, int)); | |
213 | static void putenv_from_prefixes PROTO((struct path_prefix *, char *)); | |
214 | static char *find_a_file PROTO((struct path_prefix *, char *, int)); | |
215 | static void add_prefix PROTO((struct path_prefix *, char *, char *, | |
216 | int, int, int *)); | |
217 | static char *skip_whitespace PROTO((char *)); | |
218 | static void record_temp_file PROTO((char *, int, int)); | |
219 | static void delete_if_ordinary PROTO((char *)); | |
220 | static void delete_temp_files PROTO((void)); | |
221 | static void delete_failure_queue PROTO((void)); | |
222 | static void clear_failure_queue PROTO((void)); | |
223 | static int check_live_switch PROTO((int, int)); | |
224 | static char *handle_braces PROTO((char *)); | |
225 | static char *save_string PROTO((char *, int)); | |
226 | static char *concat PVPROTO((char *, ...)); | |
227 | extern int do_spec PROTO((char *)); | |
228 | static int do_spec_1 PROTO((char *, int, char *)); | |
229 | static char *find_file PROTO((char *)); | |
230 | static int is_directory PROTO((char *, char *, int)); | |
231 | static void validate_switches PROTO((char *)); | |
232 | static void validate_all_switches PROTO((void)); | |
233 | static void give_switch PROTO((int, int, int)); | |
234 | static int used_arg PROTO((char *, int)); | |
235 | static int default_arg PROTO((char *, int)); | |
236 | static void set_multilib_dir PROTO((void)); | |
237 | static void print_multilib_info PROTO((void)); | |
238 | static void pfatal_with_name PROTO((char *)); | |
239 | static void perror_with_name PROTO((char *)); | |
240 | static void pfatal_pexecute PROTO((char *, char *)); | |
241 | static void fatal PVPROTO((char *, ...)); | |
242 | static void error PVPROTO((char *, ...)); | |
243 | static void display_help PROTO((void)); | |
244 | ||
245 | void fancy_abort (); | |
246 | char *xmalloc (); | |
247 | char *xrealloc (); | |
248 | ||
249 | #ifdef LANG_SPECIFIC_DRIVER | |
250 | /* Called before processing to change/add/remove arguments. */ | |
251 | extern void lang_specific_driver PROTO ((void (*) PVPROTO((char *, ...)), int *, char ***, int *)); | |
252 | ||
253 | /* Called before linking. Returns 0 on success and -1 on failure. */ | |
254 | extern int lang_specific_pre_link (); | |
255 | ||
256 | /* Number of extra output files that lang_specific_pre_link may generate. */ | |
257 | extern int lang_specific_extra_outfiles; | |
258 | #endif | |
259 | \f | |
260 | /* Specs are strings containing lines, each of which (if not blank) | |
261 | is made up of a program name, and arguments separated by spaces. | |
262 | The program name must be exact and start from root, since no path | |
263 | is searched and it is unreliable to depend on the current working directory. | |
264 | Redirection of input or output is not supported; the subprograms must | |
265 | accept filenames saying what files to read and write. | |
266 | ||
267 | In addition, the specs can contain %-sequences to substitute variable text | |
268 | or for conditional text. Here is a table of all defined %-sequences. | |
269 | Note that spaces are not generated automatically around the results of | |
270 | expanding these sequences; therefore, you can concatenate them together | |
271 | or with constant text in a single argument. | |
272 | ||
273 | %% substitute one % into the program name or argument. | |
274 | %i substitute the name of the input file being processed. | |
275 | %b substitute the basename of the input file being processed. | |
276 | This is the substring up to (and not including) the last period | |
277 | and not including the directory. | |
278 | %gSUFFIX | |
279 | substitute a file name that has suffix SUFFIX and is chosen | |
280 | once per compilation, and mark the argument a la %d. To reduce | |
281 | exposure to denial-of-service attacks, the file name is now | |
282 | chosen in a way that is hard to predict even when previously | |
283 | chosen file names are known. For example, `%g.s ... %g.o ... %g.s' | |
284 | might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches | |
285 | the regexp "[.A-Za-z]*" or the special string "%O", which is | |
286 | treated exactly as if %O had been pre-processed. Previously, %g | |
287 | was simply substituted with a file name chosen once per compilation, | |
288 | without regard to any appended suffix (which was therefore treated | |
289 | just like ordinary text), making such attacks more likely to succeed. | |
290 | %uSUFFIX | |
291 | like %g, but generates a new temporary file name even if %uSUFFIX | |
292 | was already seen. | |
293 | %USUFFIX | |
294 | substitutes the last file name generated with %uSUFFIX, generating a | |
295 | new one if there is no such last file name. In the absence of any | |
296 | %uSUFFIX, this is just like %gSUFFIX, except they don't share | |
297 | the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s' | |
298 | would involve the generation of two distinct file names, one | |
299 | for each `%g.s' and another for each `%U.s'. Previously, %U was | |
300 | simply substituted with a file name chosen for the previous %u, | |
301 | without regard to any appended suffix. | |
302 | %d marks the argument containing or following the %d as a | |
303 | temporary file name, so that that file will be deleted if CC exits | |
304 | successfully. Unlike %g, this contributes no text to the argument. | |
305 | %w marks the argument containing or following the %w as the | |
306 | "output file" of this compilation. This puts the argument | |
307 | into the sequence of arguments that %o will substitute later. | |
308 | %W{...} | |
309 | like %{...} but mark last argument supplied within | |
310 | as a file to be deleted on failure. | |
311 | %o substitutes the names of all the output files, with spaces | |
312 | automatically placed around them. You should write spaces | |
313 | around the %o as well or the results are undefined. | |
314 | %o is for use in the specs for running the linker. | |
315 | Input files whose names have no recognized suffix are not compiled | |
316 | at all, but they are included among the output files, so they will | |
317 | be linked. | |
318 | %O substitutes the suffix for object files. Note that this is | |
319 | handled specially when it immediately follows %g, %u, or %U, | |
320 | because of the need for those to form complete file names. The | |
321 | handling is such that %O is treated exactly as if it had already | |
322 | been substituted, except that %g, %u, and %U do not currently | |
323 | support additional SUFFIX characters following %O as they would | |
324 | following, for example, `.o'. | |
325 | %p substitutes the standard macro predefinitions for the | |
326 | current target machine. Use this when running cpp. | |
327 | %P like %p, but puts `__' before and after the name of each macro. | |
328 | (Except macros that already have __.) | |
329 | This is for ANSI C. | |
330 | %I Substitute a -iprefix option made from GCC_EXEC_PREFIX. | |
331 | %s current argument is the name of a library or startup file of some sort. | |
332 | Search for that file in a standard list of directories | |
333 | and substitute the full name found. | |
334 | %eSTR Print STR as an error message. STR is terminated by a newline. | |
335 | Use this when inconsistent options are detected. | |
336 | %x{OPTION} Accumulate an option for %X. | |
337 | %X Output the accumulated linker options specified by compilations. | |
338 | %Y Output the accumulated assembler options specified by compilations. | |
339 | %Z Output the accumulated preprocessor options specified by compilations. | |
340 | %v1 Substitute the major version number of GCC. | |
341 | (For version 2.5.n, this is 2.) | |
342 | %v2 Substitute the minor version number of GCC. | |
343 | (For version 2.5.n, this is 5.) | |
344 | %a process ASM_SPEC as a spec. | |
345 | This allows config.h to specify part of the spec for running as. | |
346 | %A process ASM_FINAL_SPEC as a spec. A capital A is actually | |
347 | used here. This can be used to run a post-processor after the | |
348 | assembler has done its job. | |
349 | %D Dump out a -L option for each directory in startfile_prefixes. | |
350 | If multilib_dir is set, extra entries are generated with it affixed. | |
351 | %l process LINK_SPEC as a spec. | |
352 | %L process LIB_SPEC as a spec. | |
353 | %G process LIBGCC_SPEC as a spec. | |
354 | %S process STARTFILE_SPEC as a spec. A capital S is actually used here. | |
355 | %E process ENDFILE_SPEC as a spec. A capital E is actually used here. | |
356 | %c process SIGNED_CHAR_SPEC as a spec. | |
357 | %C process CPP_SPEC as a spec. A capital C is actually used here. | |
358 | %1 process CC1_SPEC as a spec. | |
359 | %2 process CC1PLUS_SPEC as a spec. | |
360 | %| output "-" if the input for the current command is coming from a pipe. | |
361 | %* substitute the variable part of a matched option. (See below.) | |
362 | Note that each comma in the substituted string is replaced by | |
363 | a single space. | |
364 | %{S} substitutes the -S switch, if that switch was given to CC. | |
365 | If that switch was not specified, this substitutes nothing. | |
366 | Here S is a metasyntactic variable. | |
367 | %{S*} substitutes all the switches specified to CC whose names start | |
368 | with -S. This is used for -o, -D, -I, etc; switches that take | |
369 | arguments. CC considers `-o foo' as being one switch whose | |
370 | name starts with `o'. %{o*} would substitute this text, | |
371 | including the space; thus, two arguments would be generated. | |
372 | %{^S*} likewise, but don't put a blank between a switch and any args. | |
373 | %{S*:X} substitutes X if one or more switches whose names start with -S are | |
374 | specified to CC. Note that the tail part of the -S option | |
375 | (i.e. the part matched by the `*') will be substituted for each | |
376 | occurrence of %* within X. | |
377 | %{S:X} substitutes X, but only if the -S switch was given to CC. | |
378 | %{!S:X} substitutes X, but only if the -S switch was NOT given to CC. | |
379 | %{|S:X} like %{S:X}, but if no S switch, substitute `-'. | |
380 | %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'. | |
381 | %{.S:X} substitutes X, but only if processing a file with suffix S. | |
382 | %{!.S:X} substitutes X, but only if NOT processing a file with suffix S. | |
383 | %{S|P:X} substitutes X if either -S or -P was given to CC. This may be | |
384 | combined with ! and . as above binding stronger than the OR. | |
385 | %(Spec) processes a specification defined in a specs file as *Spec: | |
386 | %[Spec] as above, but put __ around -D arguments | |
387 | ||
388 | The conditional text X in a %{S:X} or %{!S:X} construct may contain | |
389 | other nested % constructs or spaces, or even newlines. They are | |
390 | processed as usual, as described above. | |
391 | ||
392 | The -O, -f, -m, and -W switches are handled specifically in these | |
393 | constructs. If another value of -O or the negated form of a -f, -m, or | |
394 | -W switch is found later in the command line, the earlier switch | |
395 | value is ignored, except with {S*} where S is just one letter; this | |
396 | passes all matching options. | |
397 | ||
398 | The character | at the beginning of the predicate text is used to indicate | |
399 | that a command should be piped to the following command, but only if -pipe | |
400 | is specified. | |
401 | ||
402 | Note that it is built into CC which switches take arguments and which | |
403 | do not. You might think it would be useful to generalize this to | |
404 | allow each compiler's spec to say which switches take arguments. But | |
405 | this cannot be done in a consistent fashion. CC cannot even decide | |
406 | which input files have been specified without knowing which switches | |
407 | take arguments, and it must know which input files to compile in order | |
408 | to tell which compilers to run. | |
409 | ||
410 | CC also knows implicitly that arguments starting in `-l' are to be | |
411 | treated as compiler output files, and passed to the linker in their | |
412 | proper position among the other output files. */ | |
413 | \f | |
414 | /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */ | |
415 | ||
416 | /* config.h can define ASM_SPEC to provide extra args to the assembler | |
417 | or extra switch-translations. */ | |
418 | #ifndef ASM_SPEC | |
419 | #define ASM_SPEC "" | |
420 | #endif | |
421 | ||
422 | /* config.h can define ASM_FINAL_SPEC to run a post processor after | |
423 | the assembler has run. */ | |
424 | #ifndef ASM_FINAL_SPEC | |
425 | #define ASM_FINAL_SPEC "" | |
426 | #endif | |
427 | ||
428 | /* config.h can define CPP_SPEC to provide extra args to the C preprocessor | |
429 | or extra switch-translations. */ | |
430 | #ifndef CPP_SPEC | |
431 | #define CPP_SPEC "" | |
432 | #endif | |
433 | ||
434 | /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus | |
435 | or extra switch-translations. */ | |
436 | #ifndef CC1_SPEC | |
437 | #define CC1_SPEC "" | |
438 | #endif | |
439 | ||
440 | /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus | |
441 | or extra switch-translations. */ | |
442 | #ifndef CC1PLUS_SPEC | |
443 | #define CC1PLUS_SPEC "" | |
444 | #endif | |
445 | ||
446 | /* config.h can define LINK_SPEC to provide extra args to the linker | |
447 | or extra switch-translations. */ | |
448 | #ifndef LINK_SPEC | |
449 | #define LINK_SPEC "" | |
450 | #endif | |
451 | ||
452 | /* config.h can define LIB_SPEC to override the default libraries. */ | |
453 | #ifndef LIB_SPEC | |
454 | #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}" | |
455 | #endif | |
456 | ||
457 | /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is | |
458 | included. */ | |
459 | #ifndef LIBGCC_SPEC | |
460 | #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1) | |
461 | /* Have gcc do the search for libgcc.a. */ | |
462 | #define LIBGCC_SPEC "libgcc.a%s" | |
463 | #else | |
464 | #define LIBGCC_SPEC "-lgcc" | |
465 | #endif | |
466 | #endif | |
467 | ||
468 | /* config.h can define STARTFILE_SPEC to override the default crt0 files. */ | |
469 | #ifndef STARTFILE_SPEC | |
470 | #define STARTFILE_SPEC \ | |
471 | "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}" | |
472 | #endif | |
473 | ||
474 | /* config.h can define SWITCHES_NEED_SPACES to control which options | |
475 | require spaces between the option and the argument. */ | |
476 | #ifndef SWITCHES_NEED_SPACES | |
477 | #define SWITCHES_NEED_SPACES "" | |
478 | #endif | |
479 | ||
480 | /* config.h can define ENDFILE_SPEC to override the default crtn files. */ | |
481 | #ifndef ENDFILE_SPEC | |
482 | #define ENDFILE_SPEC "" | |
483 | #endif | |
484 | ||
485 | /* This spec is used for telling cpp whether char is signed or not. */ | |
486 | #ifndef SIGNED_CHAR_SPEC | |
487 | /* Use #if rather than ?: | |
488 | because MIPS C compiler rejects like ?: in initializers. */ | |
489 | #if DEFAULT_SIGNED_CHAR | |
490 | #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}" | |
491 | #else | |
492 | #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}" | |
493 | #endif | |
494 | #endif | |
495 | ||
496 | #ifndef LINKER_NAME | |
497 | #define LINKER_NAME "collect2" | |
498 | #endif | |
499 | ||
500 | static char *cpp_spec = CPP_SPEC; | |
501 | static char *cpp_predefines = CPP_PREDEFINES; | |
502 | static char *cc1_spec = CC1_SPEC; | |
503 | static char *cc1plus_spec = CC1PLUS_SPEC; | |
504 | static char *signed_char_spec = SIGNED_CHAR_SPEC; | |
505 | static char *asm_spec = ASM_SPEC; | |
506 | static char *asm_final_spec = ASM_FINAL_SPEC; | |
507 | static char *link_spec = LINK_SPEC; | |
508 | static char *lib_spec = LIB_SPEC; | |
509 | static char *libgcc_spec = LIBGCC_SPEC; | |
510 | static char *endfile_spec = ENDFILE_SPEC; | |
511 | static char *startfile_spec = STARTFILE_SPEC; | |
512 | static char *switches_need_spaces = SWITCHES_NEED_SPACES; | |
513 | static char *linker_name_spec = LINKER_NAME; | |
514 | ||
515 | /* Some compilers have limits on line lengths, and the multilib_select | |
516 | and/or multilib_matches strings can be very long, so we build them at | |
517 | run time. */ | |
518 | static struct obstack multilib_obstack; | |
519 | static char *multilib_select; | |
520 | static char *multilib_matches; | |
521 | static char *multilib_defaults; | |
522 | #include "multilib.h" | |
523 | ||
524 | /* Check whether a particular argument is a default argument. */ | |
525 | ||
526 | #ifndef MULTILIB_DEFAULTS | |
527 | #define MULTILIB_DEFAULTS { "" } | |
528 | #endif | |
529 | ||
530 | static char *multilib_defaults_raw[] = MULTILIB_DEFAULTS; | |
531 | ||
532 | struct user_specs { | |
533 | struct user_specs *next; | |
534 | char *filename; | |
535 | }; | |
536 | ||
537 | static struct user_specs *user_specs_head, *user_specs_tail; | |
538 | ||
539 | /* This defines which switch letters take arguments. */ | |
540 | ||
541 | #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \ | |
542 | ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \ | |
543 | || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \ | |
544 | || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \ | |
545 | || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \ | |
546 | || (CHAR) == 'B' || (CHAR) == 'b') | |
547 | ||
548 | #ifndef SWITCH_TAKES_ARG | |
549 | #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR) | |
550 | #endif | |
551 | ||
552 | /* This defines which multi-letter switches take arguments. */ | |
553 | ||
554 | #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \ | |
555 | (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \ | |
556 | || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \ | |
557 | || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \ | |
558 | || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \ | |
559 | || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \ | |
560 | || !strcmp (STR, "isystem") || !strcmp (STR, "specs")) | |
561 | ||
562 | #ifndef WORD_SWITCH_TAKES_ARG | |
563 | #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR) | |
564 | #endif | |
565 | \f | |
566 | ||
567 | #ifdef HAVE_EXECUTABLE_SUFFIX | |
568 | /* This defines which switches stop a full compilation. */ | |
569 | #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \ | |
570 | ((CHAR) == 'c' || (CHAR) == 'S') | |
571 | ||
572 | #ifndef SWITCH_CURTAILS_COMPILATION | |
573 | #define SWITCH_CURTAILS_COMPILATION(CHAR) \ | |
574 | DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) | |
575 | #endif | |
576 | #endif | |
577 | ||
578 | /* Record the mapping from file suffixes for compilation specs. */ | |
579 | ||
580 | struct compiler | |
581 | { | |
582 | char *suffix; /* Use this compiler for input files | |
583 | whose names end in this suffix. */ | |
584 | ||
585 | char *spec[4]; /* To use this compiler, concatenate these | |
586 | specs and pass to do_spec. */ | |
587 | }; | |
588 | ||
589 | /* Pointer to a vector of `struct compiler' that gives the spec for | |
590 | compiling a file, based on its suffix. | |
591 | A file that does not end in any of these suffixes will be passed | |
592 | unchanged to the loader and nothing else will be done to it. | |
593 | ||
594 | An entry containing two 0s is used to terminate the vector. | |
595 | ||
596 | If multiple entries match a file, the last matching one is used. */ | |
597 | ||
598 | static struct compiler *compilers; | |
599 | ||
600 | /* Number of entries in `compilers', not counting the null terminator. */ | |
601 | ||
602 | static int n_compilers; | |
603 | ||
604 | /* The default list of file name suffixes and their compilation specs. */ | |
605 | ||
606 | static struct compiler default_compilers[] = | |
607 | { | |
608 | /* Add lists of suffixes of known languages here. If those languages | |
609 | were not present when we built the driver, we will hit these copies | |
610 | and be given a more meaningful error than "file not used since | |
611 | linking is not done". */ | |
612 | {".cc", {"#C++"}}, {".cxx", {"#C++"}}, {".cpp", {"#C++"}}, {".c++", {"#C++"}}, | |
613 | {".C", {"#C++"}}, {".ads", {"#Ada"}}, {".adb", {"#Ada"}}, {".ada", {"#Ada"}}, | |
614 | {".f", {"#Fortran"}}, {".for", {"#Fortran"}}, {".F", {"#Fortran"}}, | |
615 | {".fpp", {"#Fortran"}}, | |
616 | {".p", {"#Pascal"}}, {".pas", {"#Pascal"}}, | |
617 | /* Next come the entries for C. */ | |
618 | {".c", {"@c"}}, | |
619 | {"@c", | |
620 | { | |
621 | #if USE_CPPLIB | |
622 | "%{E|M|MM:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\ | |
623 | %{C:%{!E:%eGNU C does not support -C without using -E}}\ | |
624 | %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\ | |
625 | -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\ | |
626 | %{ansi:-trigraphs -D__STRICT_ANSI__}\ | |
627 | %{!undef:%{!ansi:%p} %P} %{trigraphs} \ | |
628 | %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\ | |
629 | %{traditional} %{ftraditional:-traditional}\ | |
630 | %{traditional-cpp:-traditional}\ | |
631 | %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\ | |
632 | %i %{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}}\n}\ | |
633 | %{!E:%{!M:%{!MM:cc1 %i %1 \ | |
634 | -lang-c%{ansi:89} %{nostdinc*} %{A*} %{I*} %I\ | |
635 | %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\ | |
636 | %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\ | |
637 | -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\ | |
638 | %{ansi:-trigraphs -D__STRICT_ANSI__}\ | |
639 | %{!undef:%{!ansi:%p} %P} %{trigraphs} \ | |
640 | %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\ | |
641 | %{H} %C %{D*} %{U*} %{i*} %Z\ | |
642 | %{ftraditional:-traditional}\ | |
643 | %{traditional-cpp:-traditional}\ | |
644 | %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\ | |
645 | %{aux-info*}\ | |
646 | %{--help:--help} \ | |
647 | %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \ | |
648 | %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\ | |
649 | %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\ | |
650 | %{!S:as %a %Y\ | |
651 | %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\ | |
652 | %{!pipe:%g.s} %A\n }}}}" | |
653 | }}, | |
654 | #else /* ! USE_CPPLIB */ | |
655 | "cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\ | |
656 | %{C:%{!E:%eGNU C does not support -C without using -E}}\ | |
657 | %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\ | |
658 | -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\ | |
659 | %{ansi:-trigraphs -D__STRICT_ANSI__}\ | |
660 | %{!undef:%{!ansi:%p} %P} %{trigraphs} \ | |
661 | %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\ | |
662 | %{traditional} %{ftraditional:-traditional}\ | |
663 | %{traditional-cpp:-traditional}\ | |
664 | %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\ | |
665 | %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n", | |
666 | "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \ | |
667 | %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\ | |
668 | %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \ | |
669 | %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\ | |
670 | %{aux-info*}\ | |
671 | %{--help:--help} \ | |
672 | %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\ | |
673 | %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\ | |
674 | %{!S:as %a %Y\ | |
675 | %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\ | |
676 | %{!pipe:%g.s} %A\n }}}}" | |
677 | }}, | |
678 | #endif /* ! USE_CPPLIB */ | |
679 | {"-", | |
680 | {"%{E:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\ | |
681 | %{C:%{!E:%eGNU C does not support -C without using -E}}\ | |
682 | %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\ | |
683 | -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\ | |
684 | %{ansi:-trigraphs -D__STRICT_ANSI__}\ | |
685 | %{!undef:%{!ansi:%p} %P} %{trigraphs}\ | |
686 | %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\ | |
687 | %{traditional} %{ftraditional:-traditional}\ | |
688 | %{traditional-cpp:-traditional}\ | |
689 | %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\ | |
690 | %i %W{o*}}\ | |
691 | %{!E:%e-E required when input is from standard input}"}}, | |
692 | {".m", {"@objective-c"}}, | |
693 | {"@objective-c", | |
694 | {"cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\ | |
695 | %{C:%{!E:%eGNU C does not support -C without using -E}}\ | |
696 | %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\ | |
697 | -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\ | |
698 | %{ansi:-trigraphs -D__STRICT_ANSI__}\ | |
699 | %{!undef:%{!ansi:%p} %P} %{trigraphs}\ | |
700 | %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\ | |
701 | %{traditional} %{ftraditional:-traditional}\ | |
702 | %{traditional-cpp:-traditional}\ | |
703 | %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\ | |
704 | %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n", | |
705 | "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \ | |
706 | %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a*}\ | |
707 | %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \ | |
708 | %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \ | |
709 | -lang-objc %{gen-decls} \ | |
710 | %{aux-info*}\ | |
711 | %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\ | |
712 | %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\ | |
713 | %{!S:as %a %Y\ | |
714 | %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\ | |
715 | %{!pipe:%g.s} %A\n }}}}"}}, | |
716 | {".h", {"@c-header"}}, | |
717 | {"@c-header", | |
718 | {"%{!E:%eCompilation of header file requested} \ | |
719 | cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\ | |
720 | %{C:%{!E:%eGNU C does not support -C without using -E}}\ | |
721 | %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\ | |
722 | -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\ | |
723 | %{ansi:-trigraphs -D__STRICT_ANSI__}\ | |
724 | %{!undef:%{!ansi:%p} %P} %{trigraphs}\ | |
725 | %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\ | |
726 | %{traditional} %{ftraditional:-traditional}\ | |
727 | %{traditional-cpp:-traditional}\ | |
728 | %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\ | |
729 | %i %W{o*}"}}, | |
730 | {".i", {"@cpp-output"}}, | |
731 | {"@cpp-output", | |
732 | {"%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\ | |
733 | %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\ | |
734 | %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\ | |
735 | %{aux-info*}\ | |
736 | %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\ | |
737 | %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\ | |
738 | %{!S:as %a %Y\ | |
739 | %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\ | |
740 | %{!pipe:%g.s} %A\n }}}}"}}, | |
741 | {".s", {"@assembler"}}, | |
742 | {"@assembler", | |
743 | {"%{!M:%{!MM:%{!E:%{!S:as %a %Y\ | |
744 | %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\ | |
745 | %i %A\n }}}}"}}, | |
746 | {".S", {"@assembler-with-cpp"}}, | |
747 | {"@assembler-with-cpp", | |
748 | {"cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\ | |
749 | %{C:%{!E:%eGNU C does not support -C without using -E}}\ | |
750 | %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\ | |
751 | -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \ | |
752 | %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\ | |
753 | %{traditional} %{ftraditional:-traditional}\ | |
754 | %{traditional-cpp:-traditional}\ | |
755 | %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\ | |
756 | %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n", | |
757 | "%{!M:%{!MM:%{!E:%{!S:as %a %Y\ | |
758 | %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\ | |
759 | %{!pipe:%g.s} %A\n }}}}"}}, | |
760 | #include "specs.h" | |
761 | /* Mark end of table */ | |
762 | {0, {0}} | |
763 | }; | |
764 | ||
765 | /* Number of elements in default_compilers, not counting the terminator. */ | |
766 | ||
767 | static int n_default_compilers | |
768 | = (sizeof default_compilers / sizeof (struct compiler)) - 1; | |
769 | ||
770 | /* Here is the spec for running the linker, after compiling all files. */ | |
771 | ||
772 | /* -u* was put back because both BSD and SysV seem to support it. */ | |
773 | /* %{static:} simply prevents an error message if the target machine | |
774 | doesn't handle -static. */ | |
775 | /* We want %{T*} after %{L*} and %D so that it can be used to specify linker | |
776 | scripts which exist in user specified directories, or in standard | |
777 | directories. */ | |
778 | #ifdef LINK_COMMAND_SPEC | |
779 | /* Provide option to override link_command_spec from machine specific | |
780 | configuration files. */ | |
781 | static char *link_command_spec = | |
782 | LINK_COMMAND_SPEC; | |
783 | #else | |
784 | #ifdef LINK_LIBGCC_SPECIAL | |
785 | /* Don't generate -L options. */ | |
786 | static char *link_command_spec = "\ | |
787 | %{!fsyntax-only: \ | |
788 | %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \ | |
789 | %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\ | |
790 | %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\ | |
791 | %{static:} %{L*} %o\ | |
792 | %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\ | |
793 | %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\ | |
794 | %{T*}\ | |
795 | \n }}}}}}"; | |
796 | #else | |
797 | /* Use -L. */ | |
798 | static char *link_command_spec = "\ | |
799 | %{!fsyntax-only: \ | |
800 | %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \ | |
801 | %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\ | |
802 | %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\ | |
803 | %{static:} %{L*} %D %o\ | |
804 | %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\ | |
805 | %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\ | |
806 | %{T*}\ | |
807 | \n }}}}}}"; | |
808 | #endif | |
809 | #endif | |
810 | ||
811 | /* A vector of options to give to the linker. | |
812 | These options are accumulated by %x, | |
813 | and substituted into the linker command with %X. */ | |
814 | static int n_linker_options; | |
815 | static char **linker_options; | |
816 | ||
817 | /* A vector of options to give to the assembler. | |
818 | These options are accumulated by -Wa, | |
819 | and substituted into the assembler command with %Y. */ | |
820 | static int n_assembler_options; | |
821 | static char **assembler_options; | |
822 | ||
823 | /* A vector of options to give to the preprocessor. | |
824 | These options are accumulated by -Wp, | |
825 | and substituted into the preprocessor command with %Z. */ | |
826 | static int n_preprocessor_options; | |
827 | static char **preprocessor_options; | |
828 | \f | |
829 | /* Define how to map long options into short ones. */ | |
830 | ||
831 | /* This structure describes one mapping. */ | |
832 | struct option_map | |
833 | { | |
834 | /* The long option's name. */ | |
835 | char *name; | |
836 | /* The equivalent short option. */ | |
837 | char *equivalent; | |
838 | /* Argument info. A string of flag chars; NULL equals no options. | |
839 | a => argument required. | |
840 | o => argument optional. | |
841 | j => join argument to equivalent, making one word. | |
842 | * => require other text after NAME as an argument. */ | |
843 | char *arg_info; | |
844 | }; | |
845 | ||
846 | /* This is the table of mappings. Mappings are tried sequentially | |
847 | for each option encountered; the first one that matches, wins. */ | |
848 | ||
849 | struct option_map option_map[] = | |
850 | { | |
851 | {"--all-warnings", "-Wall", 0}, | |
852 | {"--ansi", "-ansi", 0}, | |
853 | {"--assemble", "-S", 0}, | |
854 | {"--assert", "-A", "a"}, | |
855 | {"--comments", "-C", 0}, | |
856 | {"--compile", "-c", 0}, | |
857 | {"--debug", "-g", "oj"}, | |
858 | {"--define-macro", "-D", "aj"}, | |
859 | {"--dependencies", "-M", 0}, | |
860 | {"--dump", "-d", "a"}, | |
861 | {"--dumpbase", "-dumpbase", "a"}, | |
862 | {"--entry", "-e", 0}, | |
863 | {"--extra-warnings", "-W", 0}, | |
864 | {"--for-assembler", "-Wa", "a"}, | |
865 | {"--for-linker", "-Xlinker", "a"}, | |
866 | {"--force-link", "-u", "a"}, | |
867 | {"--imacros", "-imacros", "a"}, | |
868 | {"--include", "-include", "a"}, | |
869 | {"--include-barrier", "-I-", 0}, | |
870 | {"--include-directory", "-I", "aj"}, | |
871 | {"--include-directory-after", "-idirafter", "a"}, | |
872 | {"--include-prefix", "-iprefix", "a"}, | |
873 | {"--include-with-prefix", "-iwithprefix", "a"}, | |
874 | {"--include-with-prefix-before", "-iwithprefixbefore", "a"}, | |
875 | {"--include-with-prefix-after", "-iwithprefix", "a"}, | |
876 | {"--language", "-x", "a"}, | |
877 | {"--library-directory", "-L", "a"}, | |
878 | {"--machine", "-m", "aj"}, | |
879 | {"--machine-", "-m", "*j"}, | |
880 | {"--no-line-commands", "-P", 0}, | |
881 | {"--no-precompiled-includes", "-noprecomp", 0}, | |
882 | {"--no-standard-includes", "-nostdinc", 0}, | |
883 | {"--no-standard-libraries", "-nostdlib", 0}, | |
884 | {"--no-warnings", "-w", 0}, | |
885 | {"--optimize", "-O", "oj"}, | |
886 | {"--output", "-o", "a"}, | |
887 | {"--pedantic", "-pedantic", 0}, | |
888 | {"--pedantic-errors", "-pedantic-errors", 0}, | |
889 | {"--pipe", "-pipe", 0}, | |
890 | {"--prefix", "-B", "a"}, | |
891 | {"--preprocess", "-E", 0}, | |
892 | {"--print-search-dirs", "-print-search-dirs", 0}, | |
893 | {"--print-file-name", "-print-file-name=", "aj"}, | |
894 | {"--print-libgcc-file-name", "-print-libgcc-file-name", 0}, | |
895 | {"--print-missing-file-dependencies", "-MG", 0}, | |
896 | {"--print-multi-lib", "-print-multi-lib", 0}, | |
897 | {"--print-multi-directory", "-print-multi-directory", 0}, | |
898 | {"--print-prog-name", "-print-prog-name=", "aj"}, | |
899 | {"--profile", "-p", 0}, | |
900 | {"--profile-blocks", "-a", 0}, | |
901 | {"--quiet", "-q", 0}, | |
902 | {"--save-temps", "-save-temps", 0}, | |
903 | {"--shared", "-shared", 0}, | |
904 | {"--silent", "-q", 0}, | |
905 | {"--specs", "-specs=", "aj"}, | |
906 | {"--static", "-static", 0}, | |
907 | {"--symbolic", "-symbolic", 0}, | |
908 | {"--target", "-b", "a"}, | |
909 | {"--trace-includes", "-H", 0}, | |
910 | {"--traditional", "-traditional", 0}, | |
911 | {"--traditional-cpp", "-traditional-cpp", 0}, | |
912 | {"--trigraphs", "-trigraphs", 0}, | |
913 | {"--undefine-macro", "-U", "aj"}, | |
914 | {"--use-version", "-V", "a"}, | |
915 | {"--user-dependencies", "-MM", 0}, | |
916 | {"--verbose", "-v", 0}, | |
917 | {"--version", "-dumpversion", 0}, | |
918 | {"--warn-", "-W", "*j"}, | |
919 | {"--write-dependencies", "-MD", 0}, | |
920 | {"--write-user-dependencies", "-MMD", 0}, | |
921 | {"--", "-f", "*j"} | |
922 | }; | |
923 | \f | |
924 | /* Translate the options described by *ARGCP and *ARGVP. | |
925 | Make a new vector and store it back in *ARGVP, | |
926 | and store its length in *ARGVC. */ | |
927 | ||
928 | static void | |
929 | translate_options (argcp, argvp) | |
930 | int *argcp; | |
931 | char ***argvp; | |
932 | { | |
933 | int i, j, k; | |
934 | int argc = *argcp; | |
935 | char **argv = *argvp; | |
936 | char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *)); | |
937 | int newindex = 0; | |
938 | ||
939 | i = 0; | |
940 | newv[newindex++] = argv[i++]; | |
941 | ||
942 | while (i < argc) | |
943 | { | |
944 | /* Translate -- options. */ | |
945 | if (argv[i][0] == '-' && argv[i][1] == '-') | |
946 | { | |
947 | /* Find a mapping that applies to this option. */ | |
948 | for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++) | |
949 | { | |
950 | size_t optlen = strlen (option_map[j].name); | |
951 | size_t arglen = strlen (argv[i]); | |
952 | size_t complen = arglen > optlen ? optlen : arglen; | |
953 | char *arginfo = option_map[j].arg_info; | |
954 | ||
955 | if (arginfo == 0) | |
956 | arginfo = ""; | |
957 | ||
958 | if (!strncmp (argv[i], option_map[j].name, complen)) | |
959 | { | |
960 | char *arg = 0; | |
961 | ||
962 | if (arglen < optlen) | |
963 | { | |
964 | for (k = j + 1; | |
965 | k < sizeof (option_map) / sizeof (option_map[0]); | |
966 | k++) | |
967 | if (strlen (option_map[k].name) >= arglen | |
968 | && !strncmp (argv[i], option_map[k].name, arglen)) | |
969 | { | |
970 | error ("Ambiguous abbreviation %s", argv[i]); | |
971 | break; | |
972 | } | |
973 | ||
974 | if (k != sizeof (option_map) / sizeof (option_map[0])) | |
975 | break; | |
976 | } | |
977 | ||
978 | if (arglen > optlen) | |
979 | { | |
980 | /* If the option has an argument, accept that. */ | |
981 | if (argv[i][optlen] == '=') | |
982 | arg = argv[i] + optlen + 1; | |
983 | ||
984 | /* If this mapping requires extra text at end of name, | |
985 | accept that as "argument". */ | |
986 | else if (index (arginfo, '*') != 0) | |
987 | arg = argv[i] + optlen; | |
988 | ||
989 | /* Otherwise, extra text at end means mismatch. | |
990 | Try other mappings. */ | |
991 | else | |
992 | continue; | |
993 | } | |
994 | ||
995 | else if (index (arginfo, '*') != 0) | |
996 | { | |
997 | error ("Incomplete `%s' option", option_map[j].name); | |
998 | break; | |
999 | } | |
1000 | ||
1001 | /* Handle arguments. */ | |
1002 | if (index (arginfo, 'a') != 0) | |
1003 | { | |
1004 | if (arg == 0) | |
1005 | { | |
1006 | if (i + 1 == argc) | |
1007 | { | |
1008 | error ("Missing argument to `%s' option", | |
1009 | option_map[j].name); | |
1010 | break; | |
1011 | } | |
1012 | ||
1013 | arg = argv[++i]; | |
1014 | } | |
1015 | } | |
1016 | else if (index (arginfo, '*') != 0) | |
1017 | ; | |
1018 | else if (index (arginfo, 'o') == 0) | |
1019 | { | |
1020 | if (arg != 0) | |
1021 | error ("Extraneous argument to `%s' option", | |
1022 | option_map[j].name); | |
1023 | arg = 0; | |
1024 | } | |
1025 | ||
1026 | /* Store the translation as one argv elt or as two. */ | |
1027 | if (arg != 0 && index (arginfo, 'j') != 0) | |
1028 | newv[newindex++] = concat (option_map[j].equivalent, arg, | |
1029 | NULL_PTR); | |
1030 | else if (arg != 0) | |
1031 | { | |
1032 | newv[newindex++] = option_map[j].equivalent; | |
1033 | newv[newindex++] = arg; | |
1034 | } | |
1035 | else | |
1036 | newv[newindex++] = option_map[j].equivalent; | |
1037 | ||
1038 | break; | |
1039 | } | |
1040 | } | |
1041 | i++; | |
1042 | } | |
1043 | ||
1044 | /* Handle old-fashioned options--just copy them through, | |
1045 | with their arguments. */ | |
1046 | else if (argv[i][0] == '-') | |
1047 | { | |
1048 | char *p = argv[i] + 1; | |
1049 | int c = *p; | |
1050 | int nskip = 1; | |
1051 | ||
1052 | if (SWITCH_TAKES_ARG (c) > (p[1] != 0)) | |
1053 | nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0); | |
1054 | else if (WORD_SWITCH_TAKES_ARG (p)) | |
1055 | nskip += WORD_SWITCH_TAKES_ARG (p); | |
1056 | else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x') | |
1057 | && p[1] == 0) | |
1058 | nskip += 1; | |
1059 | else if (! strcmp (p, "Xlinker")) | |
1060 | nskip += 1; | |
1061 | ||
1062 | /* Watch out for an option at the end of the command line that | |
1063 | is missing arguments, and avoid skipping past the end of the | |
1064 | command line. */ | |
1065 | if (nskip + i > argc) | |
1066 | nskip = argc - i; | |
1067 | ||
1068 | while (nskip > 0) | |
1069 | { | |
1070 | newv[newindex++] = argv[i++]; | |
1071 | nskip--; | |
1072 | } | |
1073 | } | |
1074 | else | |
1075 | /* Ordinary operands, or +e options. */ | |
1076 | newv[newindex++] = argv[i++]; | |
1077 | } | |
1078 | ||
1079 | newv[newindex] = 0; | |
1080 | ||
1081 | *argvp = newv; | |
1082 | *argcp = newindex; | |
1083 | } | |
1084 | \f | |
1085 | char * | |
1086 | my_strerror(e) | |
1087 | int e; | |
1088 | { | |
1089 | #ifdef HAVE_STRERROR | |
1090 | ||
1091 | return strerror(e); | |
1092 | ||
1093 | #else | |
1094 | ||
1095 | static char buffer[30]; | |
1096 | if (!e) | |
1097 | return "cannot access"; | |
1098 | ||
1099 | if (e > 0 && e < sys_nerr) | |
1100 | return sys_errlist[e]; | |
1101 | ||
1102 | sprintf (buffer, "Unknown error %d", e); | |
1103 | return buffer; | |
1104 | #endif | |
1105 | } | |
1106 | \f | |
1107 | static char * | |
1108 | skip_whitespace (p) | |
1109 | char *p; | |
1110 | { | |
1111 | while (1) | |
1112 | { | |
1113 | /* A fully-blank line is a delimiter in the SPEC file and shouldn't | |
1114 | be considered whitespace. */ | |
1115 | if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n') | |
1116 | return p + 1; | |
1117 | else if (*p == '\n' || *p == ' ' || *p == '\t') | |
1118 | p++; | |
1119 | else if (*p == '#') | |
1120 | { | |
1121 | while (*p != '\n') p++; | |
1122 | p++; | |
1123 | } | |
1124 | else | |
1125 | break; | |
1126 | } | |
1127 | ||
1128 | return p; | |
1129 | } | |
1130 | \f | |
1131 | /* Structure to keep track of the specs that have been defined so far. | |
1132 | These are accessed using %(specname) or %[specname] in a compiler | |
1133 | or link spec. */ | |
1134 | ||
1135 | struct spec_list | |
1136 | { | |
1137 | /* The following 2 fields must be first */ | |
1138 | /* to allow EXTRA_SPECS to be initialized */ | |
1139 | char *name; /* name of the spec. */ | |
1140 | char *ptr; /* available ptr if no static pointer */ | |
1141 | ||
1142 | /* The following fields are not initialized */ | |
1143 | /* by EXTRA_SPECS */ | |
1144 | char **ptr_spec; /* pointer to the spec itself. */ | |
1145 | struct spec_list *next; /* Next spec in linked list. */ | |
1146 | int name_len; /* length of the name */ | |
1147 | int alloc_p; /* whether string was allocated */ | |
1148 | }; | |
1149 | ||
1150 | #define INIT_STATIC_SPEC(NAME,PTR) \ | |
1151 | { NAME, NULL_PTR, PTR, (struct spec_list *)0, sizeof (NAME)-1, 0 } | |
1152 | ||
1153 | /* List of statically defined specs */ | |
1154 | static struct spec_list static_specs[] = { | |
1155 | INIT_STATIC_SPEC ("asm", &asm_spec), | |
1156 | INIT_STATIC_SPEC ("asm_final", &asm_final_spec), | |
1157 | INIT_STATIC_SPEC ("cpp", &cpp_spec), | |
1158 | INIT_STATIC_SPEC ("cc1", &cc1_spec), | |
1159 | INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec), | |
1160 | INIT_STATIC_SPEC ("endfile", &endfile_spec), | |
1161 | INIT_STATIC_SPEC ("link", &link_spec), | |
1162 | INIT_STATIC_SPEC ("lib", &lib_spec), | |
1163 | INIT_STATIC_SPEC ("libgcc", &libgcc_spec), | |
1164 | INIT_STATIC_SPEC ("startfile", &startfile_spec), | |
1165 | INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces), | |
1166 | INIT_STATIC_SPEC ("signed_char", &signed_char_spec), | |
1167 | INIT_STATIC_SPEC ("predefines", &cpp_predefines), | |
1168 | INIT_STATIC_SPEC ("cross_compile", &cross_compile), | |
1169 | INIT_STATIC_SPEC ("version", &compiler_version), | |
1170 | INIT_STATIC_SPEC ("multilib", &multilib_select), | |
1171 | INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults), | |
1172 | INIT_STATIC_SPEC ("multilib_extra", &multilib_extra), | |
1173 | INIT_STATIC_SPEC ("multilib_matches", &multilib_matches), | |
1174 | INIT_STATIC_SPEC ("linker", &linker_name_spec), | |
1175 | }; | |
1176 | ||
1177 | #ifdef EXTRA_SPECS /* additional specs needed */ | |
1178 | static struct spec_list extra_specs[] = { EXTRA_SPECS }; | |
1179 | #endif | |
1180 | ||
1181 | /* List of dynamically allocates specs that have been defined so far. */ | |
1182 | ||
1183 | static struct spec_list *specs = (struct spec_list *)0; | |
1184 | ||
1185 | \f | |
1186 | /* Initialize the specs lookup routines. */ | |
1187 | ||
1188 | static void | |
1189 | init_spec () | |
1190 | { | |
1191 | struct spec_list *next = (struct spec_list *)0; | |
1192 | struct spec_list *sl = (struct spec_list *)0; | |
1193 | int i; | |
1194 | ||
1195 | if (specs) | |
1196 | return; /* already initialized */ | |
1197 | ||
1198 | if (verbose_flag) | |
1199 | fprintf (stderr, "Using builtin specs.\n"); | |
1200 | ||
1201 | #ifdef EXTRA_SPECS | |
1202 | for (i = (sizeof (extra_specs) / sizeof (extra_specs[0])) - 1; i >= 0; i--) | |
1203 | { | |
1204 | sl = &extra_specs[i]; | |
1205 | sl->next = next; | |
1206 | sl->name_len = strlen (sl->name); | |
1207 | sl->ptr_spec = &sl->ptr; | |
1208 | next = sl; | |
1209 | } | |
1210 | #endif | |
1211 | ||
1212 | for (i = (sizeof (static_specs) / sizeof (static_specs[0])) - 1; i >= 0; i--) | |
1213 | { | |
1214 | sl = &static_specs[i]; | |
1215 | sl->next = next; | |
1216 | next = sl; | |
1217 | } | |
1218 | ||
1219 | specs = sl; | |
1220 | } | |
1221 | ||
1222 | \f | |
1223 | /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is | |
1224 | removed; If the spec starts with a + then SPEC is added to the end of the | |
1225 | current spec. */ | |
1226 | ||
1227 | static void | |
1228 | set_spec (name, spec) | |
1229 | char *name; | |
1230 | char *spec; | |
1231 | { | |
1232 | struct spec_list *sl; | |
1233 | char *old_spec; | |
1234 | int name_len = strlen (name); | |
1235 | int i; | |
1236 | ||
1237 | /* If this is the first call, initialize the statically allocated specs */ | |
1238 | if (!specs) | |
1239 | { | |
1240 | struct spec_list *next = (struct spec_list *)0; | |
1241 | for (i = (sizeof (static_specs) / sizeof (static_specs[0])) - 1; | |
1242 | i >= 0; i--) | |
1243 | { | |
1244 | sl = &static_specs[i]; | |
1245 | sl->next = next; | |
1246 | next = sl; | |
1247 | } | |
1248 | specs = sl; | |
1249 | } | |
1250 | ||
1251 | /* See if the spec already exists */ | |
1252 | for (sl = specs; sl; sl = sl->next) | |
1253 | if (name_len == sl->name_len && !strcmp (sl->name, name)) | |
1254 | break; | |
1255 | ||
1256 | if (!sl) | |
1257 | { | |
1258 | /* Not found - make it */ | |
1259 | sl = (struct spec_list *) xmalloc (sizeof (struct spec_list)); | |
1260 | sl->name = save_string (name, strlen (name)); | |
1261 | sl->name_len = name_len; | |
1262 | sl->ptr_spec = &sl->ptr; | |
1263 | sl->alloc_p = 0; | |
1264 | *(sl->ptr_spec) = ""; | |
1265 | sl->next = specs; | |
1266 | specs = sl; | |
1267 | } | |
1268 | ||
1269 | old_spec = *(sl->ptr_spec); | |
1270 | *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE (spec[1])) | |
1271 | ? concat (old_spec, spec + 1, NULL_PTR) | |
1272 | : save_string (spec, strlen (spec))); | |
1273 | ||
1274 | #ifdef DEBUG_SPECS | |
1275 | if (verbose_flag) | |
1276 | fprintf (stderr, "Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec)); | |
1277 | #endif | |
1278 | ||
1279 | /* Free the old spec */ | |
1280 | if (old_spec && sl->alloc_p) | |
1281 | free (old_spec); | |
1282 | ||
1283 | sl->alloc_p = 1; | |
1284 | } | |
1285 | \f | |
1286 | /* Accumulate a command (program name and args), and run it. */ | |
1287 | ||
1288 | /* Vector of pointers to arguments in the current line of specifications. */ | |
1289 | ||
1290 | static char **argbuf; | |
1291 | ||
1292 | /* Number of elements allocated in argbuf. */ | |
1293 | ||
1294 | static int argbuf_length; | |
1295 | ||
1296 | /* Number of elements in argbuf currently in use (containing args). */ | |
1297 | ||
1298 | static int argbuf_index; | |
1299 | ||
1300 | /* We want this on by default all the time now. */ | |
1301 | #define MKTEMP_EACH_FILE | |
1302 | ||
1303 | #ifdef MKTEMP_EACH_FILE | |
1304 | ||
1305 | extern char *make_temp_file PROTO((char *)); | |
1306 | ||
1307 | /* This is the list of suffixes and codes (%g/%u/%U) and the associated | |
1308 | temp file. */ | |
1309 | ||
1310 | static struct temp_name { | |
1311 | char *suffix; /* suffix associated with the code. */ | |
1312 | int length; /* strlen (suffix). */ | |
1313 | int unique; /* Indicates whether %g or %u/%U was used. */ | |
1314 | char *filename; /* associated filename. */ | |
1315 | int filename_length; /* strlen (filename). */ | |
1316 | struct temp_name *next; | |
1317 | } *temp_names; | |
1318 | #else | |
1319 | extern char *choose_temp_base PROTO((void)); | |
1320 | #endif | |
1321 | ||
1322 | ||
1323 | /* Number of commands executed so far. */ | |
1324 | ||
1325 | static int execution_count; | |
1326 | ||
1327 | /* Number of commands that exited with a signal. */ | |
1328 | ||
1329 | static int signal_count; | |
1330 | ||
1331 | /* Name with which this program was invoked. */ | |
1332 | ||
1333 | static char *programname; | |
1334 | \f | |
1335 | /* Structures to keep track of prefixes to try when looking for files. */ | |
1336 | ||
1337 | struct prefix_list | |
1338 | { | |
1339 | char *prefix; /* String to prepend to the path. */ | |
1340 | struct prefix_list *next; /* Next in linked list. */ | |
1341 | int require_machine_suffix; /* Don't use without machine_suffix. */ | |
1342 | /* 2 means try both machine_suffix and just_machine_suffix. */ | |
1343 | int *used_flag_ptr; /* 1 if a file was found with this prefix. */ | |
1344 | }; | |
1345 | ||
1346 | struct path_prefix | |
1347 | { | |
1348 | struct prefix_list *plist; /* List of prefixes to try */ | |
1349 | int max_len; /* Max length of a prefix in PLIST */ | |
1350 | char *name; /* Name of this list (used in config stuff) */ | |
1351 | }; | |
1352 | ||
1353 | /* List of prefixes to try when looking for executables. */ | |
1354 | ||
1355 | static struct path_prefix exec_prefixes = { 0, 0, "exec" }; | |
1356 | ||
1357 | /* List of prefixes to try when looking for startup (crt0) files. */ | |
1358 | ||
1359 | static struct path_prefix startfile_prefixes = { 0, 0, "startfile" }; | |
1360 | ||
1361 | /* List of prefixes to try when looking for include files. */ | |
1362 | ||
1363 | static struct path_prefix include_prefixes = { 0, 0, "include" }; | |
1364 | ||
1365 | /* Suffix to attach to directories searched for commands. | |
1366 | This looks like `MACHINE/VERSION/'. */ | |
1367 | ||
1368 | static char *machine_suffix = 0; | |
1369 | ||
1370 | /* Suffix to attach to directories searched for commands. | |
1371 | This is just `MACHINE/'. */ | |
1372 | ||
1373 | static char *just_machine_suffix = 0; | |
1374 | ||
1375 | /* Adjusted value of GCC_EXEC_PREFIX envvar. */ | |
1376 | ||
1377 | static char *gcc_exec_prefix; | |
1378 | ||
1379 | /* Default prefixes to attach to command names. */ | |
1380 | ||
1381 | #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */ | |
1382 | #undef MD_EXEC_PREFIX | |
1383 | #undef MD_STARTFILE_PREFIX | |
1384 | #undef MD_STARTFILE_PREFIX_1 | |
1385 | #endif | |
1386 | ||
1387 | #ifndef STANDARD_EXEC_PREFIX | |
1388 | #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/" | |
1389 | #endif /* !defined STANDARD_EXEC_PREFIX */ | |
1390 | ||
1391 | static char *standard_exec_prefix = STANDARD_EXEC_PREFIX; | |
1392 | static char *standard_exec_prefix_1 = "/usr/lib/gcc/"; | |
1393 | #ifdef MD_EXEC_PREFIX | |
1394 | static char *md_exec_prefix = MD_EXEC_PREFIX; | |
1395 | #endif | |
1396 | ||
1397 | #ifndef STANDARD_STARTFILE_PREFIX | |
1398 | #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/" | |
1399 | #endif /* !defined STANDARD_STARTFILE_PREFIX */ | |
1400 | ||
1401 | #ifdef MD_STARTFILE_PREFIX | |
1402 | static char *md_startfile_prefix = MD_STARTFILE_PREFIX; | |
1403 | #endif | |
1404 | #ifdef MD_STARTFILE_PREFIX_1 | |
1405 | static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1; | |
1406 | #endif | |
1407 | static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX; | |
1408 | static char *standard_startfile_prefix_1 = "/lib/"; | |
1409 | static char *standard_startfile_prefix_2 = "/usr/lib/"; | |
1410 | ||
1411 | #ifndef TOOLDIR_BASE_PREFIX | |
1412 | #define TOOLDIR_BASE_PREFIX "/usr/local/" | |
1413 | #endif | |
1414 | static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX; | |
1415 | static char *tooldir_prefix; | |
1416 | ||
1417 | /* Subdirectory to use for locating libraries. Set by | |
1418 | set_multilib_dir based on the compilation options. */ | |
1419 | ||
1420 | static char *multilib_dir; | |
1421 | ||
1422 | /* Clear out the vector of arguments (after a command is executed). */ | |
1423 | ||
1424 | static void | |
1425 | clear_args () | |
1426 | { | |
1427 | argbuf_index = 0; | |
1428 | } | |
1429 | ||
1430 | /* Add one argument to the vector at the end. | |
1431 | This is done when a space is seen or at the end of the line. | |
1432 | If DELETE_ALWAYS is nonzero, the arg is a filename | |
1433 | and the file should be deleted eventually. | |
1434 | If DELETE_FAILURE is nonzero, the arg is a filename | |
1435 | and the file should be deleted if this compilation fails. */ | |
1436 | ||
1437 | static void | |
1438 | store_arg (arg, delete_always, delete_failure) | |
1439 | char *arg; | |
1440 | int delete_always, delete_failure; | |
1441 | { | |
1442 | if (argbuf_index + 1 == argbuf_length) | |
1443 | argbuf | |
1444 | = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *)); | |
1445 | ||
1446 | argbuf[argbuf_index++] = arg; | |
1447 | argbuf[argbuf_index] = 0; | |
1448 | ||
1449 | if (delete_always || delete_failure) | |
1450 | record_temp_file (arg, delete_always, delete_failure); | |
1451 | } | |
1452 | \f | |
1453 | /* Read compilation specs from a file named FILENAME, | |
1454 | replacing the default ones. | |
1455 | ||
1456 | A suffix which starts with `*' is a definition for | |
1457 | one of the machine-specific sub-specs. The "suffix" should be | |
1458 | *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc. | |
1459 | The corresponding spec is stored in asm_spec, etc., | |
1460 | rather than in the `compilers' vector. | |
1461 | ||
1462 | Anything invalid in the file is a fatal error. */ | |
1463 | ||
1464 | static void | |
1465 | read_specs (filename, main_p) | |
1466 | char *filename; | |
1467 | int main_p; | |
1468 | { | |
1469 | int desc; | |
1470 | int readlen; | |
1471 | struct stat statbuf; | |
1472 | char *buffer; | |
1473 | register char *p; | |
1474 | ||
1475 | if (verbose_flag) | |
1476 | fprintf (stderr, "Reading specs from %s\n", filename); | |
1477 | ||
1478 | /* Open and stat the file. */ | |
1479 | desc = open (filename, O_RDONLY, 0); | |
1480 | if (desc < 0) | |
1481 | pfatal_with_name (filename); | |
1482 | if (stat (filename, &statbuf) < 0) | |
1483 | pfatal_with_name (filename); | |
1484 | ||
1485 | /* Read contents of file into BUFFER. */ | |
1486 | buffer = xmalloc ((unsigned) statbuf.st_size + 1); | |
1487 | readlen = read (desc, buffer, (unsigned) statbuf.st_size); | |
1488 | if (readlen < 0) | |
1489 | pfatal_with_name (filename); | |
1490 | buffer[readlen] = 0; | |
1491 | close (desc); | |
1492 | ||
1493 | /* Scan BUFFER for specs, putting them in the vector. */ | |
1494 | p = buffer; | |
1495 | while (1) | |
1496 | { | |
1497 | char *suffix; | |
1498 | char *spec; | |
1499 | char *in, *out, *p1, *p2, *p3; | |
1500 | ||
1501 | /* Advance P in BUFFER to the next nonblank nocomment line. */ | |
1502 | p = skip_whitespace (p); | |
1503 | if (*p == 0) | |
1504 | break; | |
1505 | ||
1506 | /* Is this a special command that starts with '%'? */ | |
1507 | /* Don't allow this for the main specs file, since it would | |
1508 | encourage people to overwrite it. */ | |
1509 | if (*p == '%' && !main_p) | |
1510 | { | |
1511 | p1 = p; | |
1512 | while (*p && *p != '\n') | |
1513 | p++; | |
1514 | ||
1515 | p++; /* Skip '\n' */ | |
1516 | ||
1517 | if (!strncmp (p1, "%include", sizeof ("%include")-1) | |
1518 | && (p1[sizeof "%include" - 1] == ' ' | |
1519 | || p1[sizeof "%include" - 1] == '\t')) | |
1520 | { | |
1521 | char *new_filename; | |
1522 | ||
1523 | p1 += sizeof ("%include"); | |
1524 | while (*p1 == ' ' || *p1 == '\t') | |
1525 | p1++; | |
1526 | ||
1527 | if (*p1++ != '<' || p[-2] != '>') | |
1528 | fatal ("specs %%include syntax malformed after %d characters", | |
1529 | p1 - buffer + 1); | |
1530 | ||
1531 | p[-2] = '\0'; | |
1532 | new_filename = find_a_file (&startfile_prefixes, p1, R_OK); | |
1533 | read_specs (new_filename ? new_filename : p1, FALSE); | |
1534 | continue; | |
1535 | } | |
1536 | else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1) | |
1537 | && (p1[sizeof "%include_noerr" - 1] == ' ' | |
1538 | || p1[sizeof "%include_noerr" - 1] == '\t')) | |
1539 | { | |
1540 | char *new_filename; | |
1541 | ||
1542 | p1 += sizeof "%include_noerr"; | |
1543 | while (*p1 == ' ' || *p1 == '\t') p1++; | |
1544 | ||
1545 | if (*p1++ != '<' || p[-2] != '>') | |
1546 | fatal ("specs %%include syntax malformed after %d characters", | |
1547 | p1 - buffer + 1); | |
1548 | ||
1549 | p[-2] = '\0'; | |
1550 | new_filename = find_a_file (&startfile_prefixes, p1, R_OK); | |
1551 | if (new_filename) | |
1552 | read_specs (new_filename, FALSE); | |
1553 | else if (verbose_flag) | |
1554 | fprintf (stderr, "Could not find specs file %s\n", p1); | |
1555 | continue; | |
1556 | } | |
1557 | else if (!strncmp (p1, "%rename", sizeof "%rename" - 1) | |
1558 | && (p1[sizeof "%rename" - 1] == ' ' | |
1559 | || p1[sizeof "%rename" - 1] == '\t')) | |
1560 | { | |
1561 | int name_len; | |
1562 | struct spec_list *sl; | |
1563 | ||
1564 | /* Get original name */ | |
1565 | p1 += sizeof "%rename"; | |
1566 | while (*p1 == ' ' || *p1 == '\t') | |
1567 | p1++; | |
1568 | ||
1569 | if (! ISALPHA (*p1)) | |
1570 | fatal ("specs %%rename syntax malformed after %d characters", | |
1571 | p1 - buffer); | |
1572 | ||
1573 | p2 = p1; | |
1574 | while (*p2 && !ISSPACE (*p2)) | |
1575 | p2++; | |
1576 | ||
1577 | if (*p2 != ' ' && *p2 != '\t') | |
1578 | fatal ("specs %%rename syntax malformed after %d characters", | |
1579 | p2 - buffer); | |
1580 | ||
1581 | name_len = p2 - p1; | |
1582 | *p2++ = '\0'; | |
1583 | while (*p2 == ' ' || *p2 == '\t') | |
1584 | p2++; | |
1585 | ||
1586 | if (! ISALPHA (*p2)) | |
1587 | fatal ("specs %%rename syntax malformed after %d characters", | |
1588 | p2 - buffer); | |
1589 | ||
1590 | /* Get new spec name */ | |
1591 | p3 = p2; | |
1592 | while (*p3 && !ISSPACE (*p3)) | |
1593 | p3++; | |
1594 | ||
1595 | if (p3 != p-1) | |
1596 | fatal ("specs %%rename syntax malformed after %d characters", | |
1597 | p3 - buffer); | |
1598 | *p3 = '\0'; | |
1599 | ||
1600 | for (sl = specs; sl; sl = sl->next) | |
1601 | if (name_len == sl->name_len && !strcmp (sl->name, p1)) | |
1602 | break; | |
1603 | ||
1604 | if (!sl) | |
1605 | fatal ("specs %s spec was not found to be renamed", p1); | |
1606 | ||
1607 | if (strcmp (p1, p2) == 0) | |
1608 | continue; | |
1609 | ||
1610 | if (verbose_flag) | |
1611 | { | |
1612 | fprintf (stderr, "rename spec %s to %s\n", p1, p2); | |
1613 | #ifdef DEBUG_SPECS | |
1614 | fprintf (stderr, "spec is '%s'\n\n", *(sl->ptr_spec)); | |
1615 | #endif | |
1616 | } | |
1617 | ||
1618 | set_spec (p2, *(sl->ptr_spec)); | |
1619 | if (sl->alloc_p) | |
1620 | free (*(sl->ptr_spec)); | |
1621 | ||
1622 | *(sl->ptr_spec) = ""; | |
1623 | sl->alloc_p = 0; | |
1624 | continue; | |
1625 | } | |
1626 | else | |
1627 | fatal ("specs unknown %% command after %d characters", | |
1628 | p1 - buffer); | |
1629 | } | |
1630 | ||
1631 | /* Find the colon that should end the suffix. */ | |
1632 | p1 = p; | |
1633 | while (*p1 && *p1 != ':' && *p1 != '\n') | |
1634 | p1++; | |
1635 | ||
1636 | /* The colon shouldn't be missing. */ | |
1637 | if (*p1 != ':') | |
1638 | fatal ("specs file malformed after %d characters", p1 - buffer); | |
1639 | ||
1640 | /* Skip back over trailing whitespace. */ | |
1641 | p2 = p1; | |
1642 | while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) | |
1643 | p2--; | |
1644 | ||
1645 | /* Copy the suffix to a string. */ | |
1646 | suffix = save_string (p, p2 - p); | |
1647 | /* Find the next line. */ | |
1648 | p = skip_whitespace (p1 + 1); | |
1649 | if (p[1] == 0) | |
1650 | fatal ("specs file malformed after %d characters", p - buffer); | |
1651 | ||
1652 | p1 = p; | |
1653 | /* Find next blank line or end of string. */ | |
1654 | while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0'))) | |
1655 | p1++; | |
1656 | ||
1657 | /* Specs end at the blank line and do not include the newline. */ | |
1658 | spec = save_string (p, p1 - p); | |
1659 | p = p1; | |
1660 | ||
1661 | /* Delete backslash-newline sequences from the spec. */ | |
1662 | in = spec; | |
1663 | out = spec; | |
1664 | while (*in != 0) | |
1665 | { | |
1666 | if (in[0] == '\\' && in[1] == '\n') | |
1667 | in += 2; | |
1668 | else if (in[0] == '#') | |
1669 | while (*in && *in != '\n') | |
1670 | in++; | |
1671 | ||
1672 | else | |
1673 | *out++ = *in++; | |
1674 | } | |
1675 | *out = 0; | |
1676 | ||
1677 | if (suffix[0] == '*') | |
1678 | { | |
1679 | if (! strcmp (suffix, "*link_command")) | |
1680 | link_command_spec = spec; | |
1681 | else | |
1682 | set_spec (suffix + 1, spec); | |
1683 | } | |
1684 | else | |
1685 | { | |
1686 | /* Add this pair to the vector. */ | |
1687 | compilers | |
1688 | = ((struct compiler *) | |
1689 | xrealloc (compilers, | |
1690 | (n_compilers + 2) * sizeof (struct compiler))); | |
1691 | ||
1692 | compilers[n_compilers].suffix = suffix; | |
1693 | bzero ((char *) compilers[n_compilers].spec, | |
1694 | sizeof compilers[n_compilers].spec); | |
1695 | compilers[n_compilers].spec[0] = spec; | |
1696 | n_compilers++; | |
1697 | bzero ((char *) &compilers[n_compilers], | |
1698 | sizeof compilers[n_compilers]); | |
1699 | } | |
1700 | ||
1701 | if (*suffix == 0) | |
1702 | link_command_spec = spec; | |
1703 | } | |
1704 | ||
1705 | if (link_command_spec == 0) | |
1706 | fatal ("spec file has no spec for linking"); | |
1707 | } | |
1708 | \f | |
1709 | /* Record the names of temporary files we tell compilers to write, | |
1710 | and delete them at the end of the run. */ | |
1711 | ||
1712 | /* This is the common prefix we use to make temp file names. | |
1713 | It is chosen once for each run of this program. | |
1714 | It is substituted into a spec by %g. | |
1715 | Thus, all temp file names contain this prefix. | |
1716 | In practice, all temp file names start with this prefix. | |
1717 | ||
1718 | This prefix comes from the envvar TMPDIR if it is defined; | |
1719 | otherwise, from the P_tmpdir macro if that is defined; | |
1720 | otherwise, in /usr/tmp or /tmp; | |
1721 | or finally the current directory if all else fails. */ | |
1722 | ||
1723 | static char *temp_filename; | |
1724 | ||
1725 | /* Length of the prefix. */ | |
1726 | ||
1727 | static int temp_filename_length; | |
1728 | ||
1729 | /* Define the list of temporary files to delete. */ | |
1730 | ||
1731 | struct temp_file | |
1732 | { | |
1733 | char *name; | |
1734 | struct temp_file *next; | |
1735 | }; | |
1736 | ||
1737 | /* Queue of files to delete on success or failure of compilation. */ | |
1738 | static struct temp_file *always_delete_queue; | |
1739 | /* Queue of files to delete on failure of compilation. */ | |
1740 | static struct temp_file *failure_delete_queue; | |
1741 | ||
1742 | /* Record FILENAME as a file to be deleted automatically. | |
1743 | ALWAYS_DELETE nonzero means delete it if all compilation succeeds; | |
1744 | otherwise delete it in any case. | |
1745 | FAIL_DELETE nonzero means delete it if a compilation step fails; | |
1746 | otherwise delete it in any case. */ | |
1747 | ||
1748 | static void | |
1749 | record_temp_file (filename, always_delete, fail_delete) | |
1750 | char *filename; | |
1751 | int always_delete; | |
1752 | int fail_delete; | |
1753 | { | |
1754 | register char *name; | |
1755 | name = xmalloc (strlen (filename) + 1); | |
1756 | strcpy (name, filename); | |
1757 | ||
1758 | if (always_delete) | |
1759 | { | |
1760 | register struct temp_file *temp; | |
1761 | for (temp = always_delete_queue; temp; temp = temp->next) | |
1762 | if (! strcmp (name, temp->name)) | |
1763 | goto already1; | |
1764 | ||
1765 | temp = (struct temp_file *) xmalloc (sizeof (struct temp_file)); | |
1766 | temp->next = always_delete_queue; | |
1767 | temp->name = name; | |
1768 | always_delete_queue = temp; | |
1769 | ||
1770 | already1:; | |
1771 | } | |
1772 | ||
1773 | if (fail_delete) | |
1774 | { | |
1775 | register struct temp_file *temp; | |
1776 | for (temp = failure_delete_queue; temp; temp = temp->next) | |
1777 | if (! strcmp (name, temp->name)) | |
1778 | goto already2; | |
1779 | ||
1780 | temp = (struct temp_file *) xmalloc (sizeof (struct temp_file)); | |
1781 | temp->next = failure_delete_queue; | |
1782 | temp->name = name; | |
1783 | failure_delete_queue = temp; | |
1784 | ||
1785 | already2:; | |
1786 | } | |
1787 | } | |
1788 | ||
1789 | /* Delete all the temporary files whose names we previously recorded. */ | |
1790 | ||
1791 | static void | |
1792 | delete_if_ordinary (name) | |
1793 | char *name; | |
1794 | { | |
1795 | struct stat st; | |
1796 | #ifdef DEBUG | |
1797 | int i, c; | |
1798 | ||
1799 | printf ("Delete %s? (y or n) ", name); | |
1800 | fflush (stdout); | |
1801 | i = getchar (); | |
1802 | if (i != '\n') | |
1803 | while ((c = getchar ()) != '\n' && c != EOF) | |
1804 | ; | |
1805 | ||
1806 | if (i == 'y' || i == 'Y') | |
1807 | #endif /* DEBUG */ | |
1808 | if (stat (name, &st) >= 0 && S_ISREG (st.st_mode)) | |
1809 | if (unlink (name) < 0) | |
1810 | if (verbose_flag) | |
1811 | perror_with_name (name); | |
1812 | } | |
1813 | ||
1814 | static void | |
1815 | delete_temp_files () | |
1816 | { | |
1817 | register struct temp_file *temp; | |
1818 | ||
1819 | for (temp = always_delete_queue; temp; temp = temp->next) | |
1820 | delete_if_ordinary (temp->name); | |
1821 | always_delete_queue = 0; | |
1822 | } | |
1823 | ||
1824 | /* Delete all the files to be deleted on error. */ | |
1825 | ||
1826 | static void | |
1827 | delete_failure_queue () | |
1828 | { | |
1829 | register struct temp_file *temp; | |
1830 | ||
1831 | for (temp = failure_delete_queue; temp; temp = temp->next) | |
1832 | delete_if_ordinary (temp->name); | |
1833 | } | |
1834 | ||
1835 | static void | |
1836 | clear_failure_queue () | |
1837 | { | |
1838 | failure_delete_queue = 0; | |
1839 | } | |
1840 | \f | |
1841 | /* Routine to add variables to the environment. We do this to pass | |
1842 | the pathname of the gcc driver, and the directories search to the | |
1843 | collect2 program, which is being run as ld. This way, we can be | |
1844 | sure of executing the right compiler when collect2 wants to build | |
1845 | constructors and destructors. Since the environment variables we | |
1846 | use come from an obstack, we don't have to worry about allocating | |
1847 | space for them. */ | |
1848 | ||
1849 | #ifndef HAVE_PUTENV | |
1850 | ||
1851 | void | |
1852 | putenv (str) | |
1853 | char *str; | |
1854 | { | |
1855 | #ifndef VMS /* nor about VMS */ | |
1856 | ||
1857 | extern char **environ; | |
1858 | char **old_environ = environ; | |
1859 | char **envp; | |
1860 | int num_envs = 0; | |
1861 | int name_len = 1; | |
1862 | int str_len = strlen (str); | |
1863 | char *p = str; | |
1864 | int ch; | |
1865 | ||
1866 | while ((ch = *p++) != '\0' && ch != '=') | |
1867 | name_len++; | |
1868 | ||
1869 | if (!ch) | |
1870 | abort (); | |
1871 | ||
1872 | /* Search for replacing an existing environment variable, and | |
1873 | count the number of total environment variables. */ | |
1874 | for (envp = old_environ; *envp; envp++) | |
1875 | { | |
1876 | num_envs++; | |
1877 | if (!strncmp (str, *envp, name_len)) | |
1878 | { | |
1879 | *envp = str; | |
1880 | return; | |
1881 | } | |
1882 | } | |
1883 | ||
1884 | /* Add a new environment variable */ | |
1885 | environ = (char **) xmalloc (sizeof (char *) * (num_envs+2)); | |
1886 | *environ = str; | |
1887 | memcpy ((char *) (environ + 1), (char *) old_environ, | |
1888 | sizeof (char *) * (num_envs+1)); | |
1889 | ||
1890 | #endif /* VMS */ | |
1891 | } | |
1892 | ||
1893 | #endif /* HAVE_PUTENV */ | |
1894 | ||
1895 | \f | |
1896 | /* Build a list of search directories from PATHS. | |
1897 | PREFIX is a string to prepend to the list. | |
1898 | If CHECK_DIR_P is non-zero we ensure the directory exists. | |
1899 | This is used mostly by putenv_from_prefixes so we use `collect_obstack'. | |
1900 | It is also used by the --print-search-dirs flag. */ | |
1901 | ||
1902 | static char * | |
1903 | build_search_list (paths, prefix, check_dir_p) | |
1904 | struct path_prefix *paths; | |
1905 | char *prefix; | |
1906 | int check_dir_p; | |
1907 | { | |
1908 | int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0; | |
1909 | int just_suffix_len | |
1910 | = (just_machine_suffix) ? strlen (just_machine_suffix) : 0; | |
1911 | int first_time = TRUE; | |
1912 | struct prefix_list *pprefix; | |
1913 | ||
1914 | obstack_grow (&collect_obstack, prefix, strlen (prefix)); | |
1915 | ||
1916 | for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next) | |
1917 | { | |
1918 | int len = strlen (pprefix->prefix); | |
1919 | ||
1920 | if (machine_suffix | |
1921 | && (! check_dir_p | |
1922 | || is_directory (pprefix->prefix, machine_suffix, 0))) | |
1923 | { | |
1924 | if (!first_time) | |
1925 | obstack_1grow (&collect_obstack, PATH_SEPARATOR); | |
1926 | ||
1927 | first_time = FALSE; | |
1928 | obstack_grow (&collect_obstack, pprefix->prefix, len); | |
1929 | obstack_grow (&collect_obstack, machine_suffix, suffix_len); | |
1930 | } | |
1931 | ||
1932 | if (just_machine_suffix | |
1933 | && pprefix->require_machine_suffix == 2 | |
1934 | && (! check_dir_p | |
1935 | || is_directory (pprefix->prefix, just_machine_suffix, 0))) | |
1936 | { | |
1937 | if (! first_time) | |
1938 | obstack_1grow (&collect_obstack, PATH_SEPARATOR); | |
1939 | ||
1940 | first_time = FALSE; | |
1941 | obstack_grow (&collect_obstack, pprefix->prefix, len); | |
1942 | obstack_grow (&collect_obstack, just_machine_suffix, | |
1943 | just_suffix_len); | |
1944 | } | |
1945 | ||
1946 | if (! pprefix->require_machine_suffix) | |
1947 | { | |
1948 | if (! first_time) | |
1949 | obstack_1grow (&collect_obstack, PATH_SEPARATOR); | |
1950 | ||
1951 | first_time = FALSE; | |
1952 | obstack_grow (&collect_obstack, pprefix->prefix, len); | |
1953 | } | |
1954 | } | |
1955 | ||
1956 | obstack_1grow (&collect_obstack, '\0'); | |
1957 | return obstack_finish (&collect_obstack); | |
1958 | } | |
1959 | ||
1960 | /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables | |
1961 | for collect. */ | |
1962 | ||
1963 | static void | |
1964 | putenv_from_prefixes (paths, env_var) | |
1965 | struct path_prefix *paths; | |
1966 | char *env_var; | |
1967 | { | |
1968 | putenv (build_search_list (paths, env_var, 1)); | |
1969 | } | |
1970 | \f | |
1971 | /* Search for NAME using the prefix list PREFIXES. MODE is passed to | |
1972 | access to check permissions. | |
1973 | Return 0 if not found, otherwise return its name, allocated with malloc. */ | |
1974 | ||
1975 | static char * | |
1976 | find_a_file (pprefix, name, mode) | |
1977 | struct path_prefix *pprefix; | |
1978 | char *name; | |
1979 | int mode; | |
1980 | { | |
1981 | char *temp; | |
1982 | char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : ""); | |
1983 | struct prefix_list *pl; | |
1984 | int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1; | |
1985 | ||
1986 | if (machine_suffix) | |
1987 | len += strlen (machine_suffix); | |
1988 | ||
1989 | temp = xmalloc (len); | |
1990 | ||
1991 | /* Determine the filename to execute (special case for absolute paths). */ | |
1992 | ||
1993 | if (*name == '/' || *name == DIR_SEPARATOR | |
1994 | /* Check for disk name on MS-DOS-based systems. */ | |
1995 | || (DIR_SEPARATOR == '\\' && name[1] == ':' | |
1996 | && (name[2] == DIR_SEPARATOR || name[2] == '/'))) | |
1997 | { | |
1998 | if (access (name, mode)) | |
1999 | { | |
2000 | strcpy (temp, name); | |
2001 | return temp; | |
2002 | } | |
2003 | } | |
2004 | else | |
2005 | for (pl = pprefix->plist; pl; pl = pl->next) | |
2006 | { | |
2007 | if (machine_suffix) | |
2008 | { | |
2009 | /* Some systems have a suffix for executable files. | |
2010 | So try appending that first. */ | |
2011 | if (file_suffix[0] != 0) | |
2012 | { | |
2013 | strcpy (temp, pl->prefix); | |
2014 | strcat (temp, machine_suffix); | |
2015 | strcat (temp, name); | |
2016 | strcat (temp, file_suffix); | |
2017 | if (access (temp, mode) == 0) | |
2018 | { | |
2019 | if (pl->used_flag_ptr != 0) | |
2020 | *pl->used_flag_ptr = 1; | |
2021 | return temp; | |
2022 | } | |
2023 | } | |
2024 | ||
2025 | /* Now try just the name. */ | |
2026 | strcpy (temp, pl->prefix); | |
2027 | strcat (temp, machine_suffix); | |
2028 | strcat (temp, name); | |
2029 | if (access (temp, mode) == 0) | |
2030 | { | |
2031 | if (pl->used_flag_ptr != 0) | |
2032 | *pl->used_flag_ptr = 1; | |
2033 | return temp; | |
2034 | } | |
2035 | } | |
2036 | ||
2037 | /* Certain prefixes are tried with just the machine type, | |
2038 | not the version. This is used for finding as, ld, etc. */ | |
2039 | if (just_machine_suffix && pl->require_machine_suffix == 2) | |
2040 | { | |
2041 | /* Some systems have a suffix for executable files. | |
2042 | So try appending that first. */ | |
2043 | if (file_suffix[0] != 0) | |
2044 | { | |
2045 | strcpy (temp, pl->prefix); | |
2046 | strcat (temp, just_machine_suffix); | |
2047 | strcat (temp, name); | |
2048 | strcat (temp, file_suffix); | |
2049 | if (access (temp, mode) == 0) | |
2050 | { | |
2051 | if (pl->used_flag_ptr != 0) | |
2052 | *pl->used_flag_ptr = 1; | |
2053 | return temp; | |
2054 | } | |
2055 | } | |
2056 | ||
2057 | strcpy (temp, pl->prefix); | |
2058 | strcat (temp, just_machine_suffix); | |
2059 | strcat (temp, name); | |
2060 | if (access (temp, mode) == 0) | |
2061 | { | |
2062 | if (pl->used_flag_ptr != 0) | |
2063 | *pl->used_flag_ptr = 1; | |
2064 | return temp; | |
2065 | } | |
2066 | } | |
2067 | ||
2068 | /* Certain prefixes can't be used without the machine suffix | |
2069 | when the machine or version is explicitly specified. */ | |
2070 | if (! pl->require_machine_suffix) | |
2071 | { | |
2072 | /* Some systems have a suffix for executable files. | |
2073 | So try appending that first. */ | |
2074 | if (file_suffix[0] != 0) | |
2075 | { | |
2076 | strcpy (temp, pl->prefix); | |
2077 | strcat (temp, name); | |
2078 | strcat (temp, file_suffix); | |
2079 | if (access (temp, mode) == 0) | |
2080 | { | |
2081 | if (pl->used_flag_ptr != 0) | |
2082 | *pl->used_flag_ptr = 1; | |
2083 | return temp; | |
2084 | } | |
2085 | } | |
2086 | ||
2087 | strcpy (temp, pl->prefix); | |
2088 | strcat (temp, name); | |
2089 | if (access (temp, mode) == 0) | |
2090 | { | |
2091 | if (pl->used_flag_ptr != 0) | |
2092 | *pl->used_flag_ptr = 1; | |
2093 | return temp; | |
2094 | } | |
2095 | } | |
2096 | } | |
2097 | ||
2098 | free (temp); | |
2099 | return 0; | |
2100 | } | |
2101 | ||
2102 | /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes | |
2103 | at the start of the list, otherwise it goes at the end. | |
2104 | ||
2105 | If WARN is nonzero, we will warn if no file is found | |
2106 | through this prefix. WARN should point to an int | |
2107 | which will be set to 1 if this entry is used. | |
2108 | ||
2109 | COMPONENT is the value to be passed to update_path. | |
2110 | ||
2111 | REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without | |
2112 | the complete value of machine_suffix. | |
2113 | 2 means try both machine_suffix and just_machine_suffix. */ | |
2114 | ||
2115 | static void | |
2116 | add_prefix (pprefix, prefix, component, first, require_machine_suffix, warn) | |
2117 | struct path_prefix *pprefix; | |
2118 | char *prefix; | |
2119 | char *component; | |
2120 | int first; | |
2121 | int require_machine_suffix; | |
2122 | int *warn; | |
2123 | { | |
2124 | struct prefix_list *pl, **prev; | |
2125 | int len; | |
2126 | ||
2127 | if (! first && pprefix->plist) | |
2128 | { | |
2129 | for (pl = pprefix->plist; pl->next; pl = pl->next) | |
2130 | ; | |
2131 | prev = &pl->next; | |
2132 | } | |
2133 | else | |
2134 | prev = &pprefix->plist; | |
2135 | ||
2136 | /* Keep track of the longest prefix */ | |
2137 | ||
2138 | prefix = update_path (prefix, component); | |
2139 | len = strlen (prefix); | |
2140 | if (len > pprefix->max_len) | |
2141 | pprefix->max_len = len; | |
2142 | ||
2143 | pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list)); | |
2144 | pl->prefix = save_string (prefix, len); | |
2145 | pl->require_machine_suffix = require_machine_suffix; | |
2146 | pl->used_flag_ptr = warn; | |
2147 | if (warn) | |
2148 | *warn = 0; | |
2149 | ||
2150 | if (*prev) | |
2151 | pl->next = *prev; | |
2152 | else | |
2153 | pl->next = (struct prefix_list *) 0; | |
2154 | *prev = pl; | |
2155 | } | |
2156 | ||
2157 | /* Print warnings for any prefixes in the list PPREFIX that were not used. */ | |
2158 | ||
2159 | static void | |
2160 | unused_prefix_warnings (pprefix) | |
2161 | struct path_prefix *pprefix; | |
2162 | { | |
2163 | struct prefix_list *pl = pprefix->plist; | |
2164 | ||
2165 | while (pl) | |
2166 | { | |
2167 | if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr) | |
2168 | { | |
2169 | if (pl->require_machine_suffix && machine_suffix) | |
2170 | error ("file path prefix `%s%s' never used", pl->prefix, | |
2171 | machine_suffix); | |
2172 | else | |
2173 | error ("file path prefix `%s' never used", pl->prefix); | |
2174 | ||
2175 | /* Prevent duplicate warnings. */ | |
2176 | *pl->used_flag_ptr = 1; | |
2177 | } | |
2178 | ||
2179 | pl = pl->next; | |
2180 | } | |
2181 | } | |
2182 | ||
2183 | \f | |
2184 | /* Execute the command specified by the arguments on the current line of spec. | |
2185 | When using pipes, this includes several piped-together commands | |
2186 | with `|' between them. | |
2187 | ||
2188 | Return 0 if successful, -1 if failed. */ | |
2189 | ||
2190 | static int | |
2191 | execute () | |
2192 | { | |
2193 | int i; | |
2194 | int n_commands; /* # of command. */ | |
2195 | char *string; | |
2196 | struct command | |
2197 | { | |
2198 | char *prog; /* program name. */ | |
2199 | char **argv; /* vector of args. */ | |
2200 | int pid; /* pid of process for this command. */ | |
2201 | }; | |
2202 | ||
2203 | struct command *commands; /* each command buffer with above info. */ | |
2204 | ||
2205 | /* Count # of piped commands. */ | |
2206 | for (n_commands = 1, i = 0; i < argbuf_index; i++) | |
2207 | if (strcmp (argbuf[i], "|") == 0) | |
2208 | n_commands++; | |
2209 | ||
2210 | /* Get storage for each command. */ | |
2211 | commands | |
2212 | = (struct command *) alloca (n_commands * sizeof (struct command)); | |
2213 | ||
2214 | /* Split argbuf into its separate piped processes, | |
2215 | and record info about each one. | |
2216 | Also search for the programs that are to be run. */ | |
2217 | ||
2218 | commands[0].prog = argbuf[0]; /* first command. */ | |
2219 | commands[0].argv = &argbuf[0]; | |
2220 | string = find_a_file (&exec_prefixes, commands[0].prog, X_OK); | |
2221 | ||
2222 | if (string) | |
2223 | commands[0].argv[0] = string; | |
2224 | ||
2225 | for (n_commands = 1, i = 0; i < argbuf_index; i++) | |
2226 | if (strcmp (argbuf[i], "|") == 0) | |
2227 | { /* each command. */ | |
2228 | #if defined (__MSDOS__) || (defined (_WIN32) && defined (__CYGWIN32_)) || defined (OS2) || defined (VMS) | |
2229 | fatal ("-pipe not supported"); | |
2230 | #endif | |
2231 | argbuf[i] = 0; /* termination of command args. */ | |
2232 | commands[n_commands].prog = argbuf[i + 1]; | |
2233 | commands[n_commands].argv = &argbuf[i + 1]; | |
2234 | string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK); | |
2235 | if (string) | |
2236 | commands[n_commands].argv[0] = string; | |
2237 | n_commands++; | |
2238 | } | |
2239 | ||
2240 | argbuf[argbuf_index] = 0; | |
2241 | ||
2242 | /* If -v, print what we are about to do, and maybe query. */ | |
2243 | ||
2244 | if (verbose_flag) | |
2245 | { | |
2246 | /* For help listings, put a blank line between sub-processes. */ | |
2247 | if (print_help_list) | |
2248 | fputc ('\n', stderr); | |
2249 | ||
2250 | /* Print each piped command as a separate line. */ | |
2251 | for (i = 0; i < n_commands ; i++) | |
2252 | { | |
2253 | char **j; | |
2254 | ||
2255 | for (j = commands[i].argv; *j; j++) | |
2256 | fprintf (stderr, " %s", *j); | |
2257 | ||
2258 | /* Print a pipe symbol after all but the last command. */ | |
2259 | if (i + 1 != n_commands) | |
2260 | fprintf (stderr, " |"); | |
2261 | fprintf (stderr, "\n"); | |
2262 | } | |
2263 | fflush (stderr); | |
2264 | #ifdef DEBUG | |
2265 | fprintf (stderr, "\nGo ahead? (y or n) "); | |
2266 | fflush (stderr); | |
2267 | i = getchar (); | |
2268 | if (i != '\n') | |
2269 | while (getchar () != '\n') | |
2270 | ; | |
2271 | ||
2272 | if (i != 'y' && i != 'Y') | |
2273 | return 0; | |
2274 | #endif /* DEBUG */ | |
2275 | } | |
2276 | ||
2277 | /* Run each piped subprocess. */ | |
2278 | ||
2279 | for (i = 0; i < n_commands; i++) | |
2280 | { | |
2281 | char *errmsg_fmt, *errmsg_arg; | |
2282 | char *string = commands[i].argv[0]; | |
2283 | ||
2284 | commands[i].pid = pexecute (string, commands[i].argv, | |
2285 | programname, temp_filename, | |
2286 | &errmsg_fmt, &errmsg_arg, | |
2287 | ((i == 0 ? PEXECUTE_FIRST : 0) | |
2288 | | (i + 1 == n_commands ? PEXECUTE_LAST : 0) | |
2289 | | (string == commands[i].prog | |
2290 | ? PEXECUTE_SEARCH : 0) | |
2291 | | (verbose_flag ? PEXECUTE_VERBOSE : 0))); | |
2292 | ||
2293 | if (commands[i].pid == -1) | |
2294 | pfatal_pexecute (errmsg_fmt, errmsg_arg); | |
2295 | ||
2296 | if (string != commands[i].prog) | |
2297 | free (string); | |
2298 | } | |
2299 | ||
2300 | execution_count++; | |
2301 | ||
2302 | /* Wait for all the subprocesses to finish. | |
2303 | We don't care what order they finish in; | |
2304 | we know that N_COMMANDS waits will get them all. | |
2305 | Ignore subprocesses that we don't know about, | |
2306 | since they can be spawned by the process that exec'ed us. */ | |
2307 | ||
2308 | { | |
2309 | int ret_code = 0; | |
2310 | ||
2311 | for (i = 0; i < n_commands; ) | |
2312 | { | |
2313 | int j; | |
2314 | int status; | |
2315 | int pid; | |
2316 | ||
2317 | pid = pwait (commands[i].pid, &status, 0); | |
2318 | if (pid < 0) | |
2319 | abort (); | |
2320 | ||
2321 | for (j = 0; j < n_commands; j++) | |
2322 | if (commands[j].pid == pid) | |
2323 | { | |
2324 | i++; | |
2325 | if (status != 0) | |
2326 | { | |
2327 | if (WIFSIGNALED (status)) | |
2328 | { | |
2329 | fatal ("Internal compiler error: program %s got fatal signal %d", | |
2330 | commands[j].prog, WTERMSIG (status)); | |
2331 | signal_count++; | |
2332 | ret_code = -1; | |
2333 | } | |
2334 | else if (WIFEXITED (status) | |
2335 | && WEXITSTATUS (status) >= MIN_FATAL_STATUS) | |
2336 | ret_code = -1; | |
2337 | } | |
2338 | break; | |
2339 | } | |
2340 | } | |
2341 | return ret_code; | |
2342 | } | |
2343 | } | |
2344 | \f | |
2345 | /* Find all the switches given to us | |
2346 | and make a vector describing them. | |
2347 | The elements of the vector are strings, one per switch given. | |
2348 | If a switch uses following arguments, then the `part1' field | |
2349 | is the switch itself and the `args' field | |
2350 | is a null-terminated vector containing the following arguments. | |
2351 | The `live_cond' field is 1 if the switch is true in a conditional spec, | |
2352 | -1 if false (overridden by a later switch), and is initialized to zero. | |
2353 | The `valid' field is nonzero if any spec has looked at this switch; | |
2354 | if it remains zero at the end of the run, it must be meaningless. */ | |
2355 | ||
2356 | struct switchstr | |
2357 | { | |
2358 | char *part1; | |
2359 | char **args; | |
2360 | int live_cond; | |
2361 | int valid; | |
2362 | }; | |
2363 | ||
2364 | static struct switchstr *switches; | |
2365 | ||
2366 | static int n_switches; | |
2367 | ||
2368 | struct infile | |
2369 | { | |
2370 | char *name; | |
2371 | char *language; | |
2372 | }; | |
2373 | ||
2374 | /* Also a vector of input files specified. */ | |
2375 | ||
2376 | static struct infile *infiles; | |
2377 | ||
2378 | static int n_infiles; | |
2379 | ||
2380 | /* This counts the number of libraries added by LANG_SPECIFIC_DRIVER, so that | |
2381 | we can tell if there were any user supplied any files or libraries. */ | |
2382 | ||
2383 | static int added_libraries; | |
2384 | ||
2385 | /* And a vector of corresponding output files is made up later. */ | |
2386 | ||
2387 | static char **outfiles; | |
2388 | ||
2389 | /* Used to track if none of the -B paths are used. */ | |
2390 | static int warn_B; | |
2391 | ||
2392 | /* Used to track if standard path isn't used and -b or -V is specified. */ | |
2393 | static int warn_std; | |
2394 | ||
2395 | /* Gives value to pass as "warn" to add_prefix for standard prefixes. */ | |
2396 | static int *warn_std_ptr = 0; | |
2397 | ||
2398 | \f | |
2399 | #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX) | |
2400 | ||
2401 | /* Convert NAME to a new name if it is the standard suffix. DO_EXE | |
2402 | is true if we should look for an executable suffix as well. */ | |
2403 | ||
2404 | static char * | |
2405 | convert_filename (name, do_exe) | |
2406 | char *name; | |
2407 | int do_exe; | |
2408 | { | |
2409 | int i; | |
2410 | int len = strlen (name); | |
2411 | ||
2412 | #ifdef HAVE_OBJECT_SUFFIX | |
2413 | /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */ | |
2414 | if (len > 2 | |
2415 | && name[len - 2] == '.' | |
2416 | && name[len - 1] == 'o') | |
2417 | { | |
2418 | obstack_grow (&obstack, name, len - 2); | |
2419 | obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX)); | |
2420 | name = obstack_finish (&obstack); | |
2421 | } | |
2422 | #endif | |
2423 | ||
2424 | #ifdef HAVE_EXECUTABLE_SUFFIX | |
2425 | /* If there is no filetype, make it the executable suffix (which includes | |
2426 | the "."). But don't get confused if we have just "-o". */ | |
2427 | if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-')) | |
2428 | return name; | |
2429 | ||
2430 | for (i = len - 1; i >= 0; i--) | |
2431 | if (name[i] == '/' || name[i] == DIR_SEPARATOR) | |
2432 | break; | |
2433 | ||
2434 | for (i++; i < len; i++) | |
2435 | if (name[i] == '.') | |
2436 | return name; | |
2437 | ||
2438 | obstack_grow (&obstack, name, len); | |
2439 | obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX)); | |
2440 | name = obstack_finish (&obstack); | |
2441 | #endif | |
2442 | ||
2443 | return name; | |
2444 | } | |
2445 | #endif | |
2446 | \f | |
2447 | /* Display the command line switches accepted by gcc. */ | |
2448 | static void | |
2449 | display_help () | |
2450 | { | |
2451 | printf ("Usage: %s [options] file...\n", programname); | |
2452 | printf ("Options:\n"); | |
2453 | ||
2454 | printf (" --help Display this information\n"); | |
2455 | if (! verbose_flag) | |
2456 | printf (" (Use '-v --help' to display command line options of sub-processes)\n"); | |
2457 | printf (" -dumpspecs Display all of the built in spec strings\n"); | |
2458 | printf (" -dumpversion Display the version of the compiler\n"); | |
2459 | printf (" -dumpmachine Display the compiler's target processor\n"); | |
2460 | printf (" -print-search-dirs Display the directories in the compiler's search path\n"); | |
2461 | printf (" -print-libgcc-file-name Display the name of the compiler's companion library\n"); | |
2462 | printf (" -print-file-name=<lib> Display the full path to library <lib>\n"); | |
2463 | printf (" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"); | |
2464 | printf (" -print-multi-directory Display the root directory for versions of libgcc\n"); | |
2465 | printf (" -print-multi-lib Display the mapping between command line options and\n"); | |
2466 | printf (" multiple library search directories\n"); | |
2467 | printf (" -Wa,<options> Pass comma-separated <options> on to the assembler\n"); | |
2468 | printf (" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"); | |
2469 | printf (" -Wl,<options> Pass comma-separated <options> on to the linker\n"); | |
2470 | printf (" -Xlinker <arg> Pass <arg> on to the linker\n"); | |
2471 | printf (" -save-temps Do not delete intermediate files\n"); | |
2472 | printf (" -pipe Use pipes rather than intermediate files\n"); | |
2473 | printf (" -specs=<file> Override builtin specs with the contents of <file>\n"); | |
2474 | printf (" -B <directory> Add <directory> to the compiler's search paths\n"); | |
2475 | printf (" -b <machine> Run gcc for target <machine>, if installed\n"); | |
2476 | printf (" -V <version> Run gcc version number <version>, if installed\n"); | |
2477 | printf (" -v Display the programs invoked by the compiler\n"); | |
2478 | printf (" -E Preprocess only; do not compile, assemble or link\n"); | |
2479 | printf (" -S Compile only; do not assemble or link\n"); | |
2480 | printf (" -c Compile and assemble, but do not link\n"); | |
2481 | printf (" -o <file> Place the output into <file>\n"); | |
2482 | printf (" -x <language> Specify the language of the following input files\n"); | |
2483 | printf (" Permissable languages include: c c++ assembler none\n"); | |
2484 | printf (" 'none' means revert to the default behaviour of\n"); | |
2485 | printf (" guessing the language based on the file's extension\n"); | |
2486 | ||
2487 | printf ("\nOptions starting with -g, -f, -m, -O or -W are automatically passed on to\n"); | |
2488 | printf ("the various sub-processes invoked by %s. In order to pass other options\n", | |
2489 | programname); | |
2490 | printf ("on to these processes the -W<letter> options must be used.\n"); | |
2491 | ||
2492 | /* The rest of the options are displayed by invocations of the various | |
2493 | sub-processes. */ | |
2494 | } | |
2495 | ||
2496 | static void | |
2497 | add_preprocessor_option (option, len) | |
2498 | char * option; | |
2499 | int len; | |
2500 | { | |
2501 | n_preprocessor_options++; | |
2502 | ||
2503 | if (! preprocessor_options) | |
2504 | preprocessor_options | |
2505 | = (char **) xmalloc (n_preprocessor_options * sizeof (char **)); | |
2506 | else | |
2507 | preprocessor_options | |
2508 | = (char **) xrealloc (preprocessor_options, | |
2509 | n_preprocessor_options * sizeof (char **)); | |
2510 | ||
2511 | preprocessor_options [n_preprocessor_options - 1] = save_string (option, len); | |
2512 | } | |
2513 | ||
2514 | static void | |
2515 | add_assembler_option (option, len) | |
2516 | char * option; | |
2517 | int len; | |
2518 | { | |
2519 | n_assembler_options++; | |
2520 | ||
2521 | if (! assembler_options) | |
2522 | assembler_options | |
2523 | = (char **) xmalloc (n_assembler_options * sizeof (char **)); | |
2524 | else | |
2525 | assembler_options | |
2526 | = (char **) xrealloc (assembler_options, | |
2527 | n_assembler_options * sizeof (char **)); | |
2528 | ||
2529 | assembler_options [n_assembler_options - 1] = save_string (option, len); | |
2530 | } | |
2531 | ||
2532 | static void | |
2533 | add_linker_option (option, len) | |
2534 | char * option; | |
2535 | int len; | |
2536 | { | |
2537 | n_linker_options++; | |
2538 | ||
2539 | if (! linker_options) | |
2540 | linker_options | |
2541 | = (char **) xmalloc (n_linker_options * sizeof (char **)); | |
2542 | else | |
2543 | linker_options | |
2544 | = (char **) xrealloc (linker_options, | |
2545 | n_linker_options * sizeof (char **)); | |
2546 | ||
2547 | linker_options [n_linker_options - 1] = save_string (option, len); | |
2548 | } | |
2549 | \f | |
2550 | /* Create the vector `switches' and its contents. | |
2551 | Store its length in `n_switches'. */ | |
2552 | ||
2553 | static void | |
2554 | process_command (argc, argv) | |
2555 | int argc; | |
2556 | char **argv; | |
2557 | { | |
2558 | register int i; | |
2559 | char *temp; | |
2560 | char *spec_lang = 0; | |
2561 | int last_language_n_infiles; | |
2562 | int have_c = 0; | |
2563 | int have_o = 0; | |
2564 | int lang_n_infiles = 0; | |
2565 | ||
2566 | GET_ENVIRONMENT (gcc_exec_prefix, "GCC_EXEC_PREFIX"); | |
2567 | ||
2568 | n_switches = 0; | |
2569 | n_infiles = 0; | |
2570 | added_libraries = 0; | |
2571 | ||
2572 | /* Figure compiler version from version string. */ | |
2573 | ||
2574 | compiler_version = save_string (version_string, strlen (version_string)); | |
2575 | for (temp = compiler_version; *temp; ++temp) | |
2576 | { | |
2577 | if (*temp == ' ') | |
2578 | { | |
2579 | *temp = '\0'; | |
2580 | break; | |
2581 | } | |
2582 | } | |
2583 | ||
2584 | /* Set up the default search paths. */ | |
2585 | ||
2586 | if (gcc_exec_prefix) | |
2587 | { | |
2588 | int len = strlen (gcc_exec_prefix); | |
2589 | if (len > sizeof ("/lib/gcc-lib/")-1 | |
2590 | && (gcc_exec_prefix[len-1] == '/' | |
2591 | || gcc_exec_prefix[len-1] == DIR_SEPARATOR)) | |
2592 | { | |
2593 | temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1; | |
2594 | if ((*temp == '/' || *temp == DIR_SEPARATOR) | |
2595 | && strncmp (temp+1, "lib", 3) == 0 | |
2596 | && (temp[4] == '/' || temp[4] == DIR_SEPARATOR) | |
2597 | && strncmp (temp+5, "gcc-lib", 7) == 0) | |
2598 | len -= sizeof ("/lib/gcc-lib/") - 1; | |
2599 | } | |
2600 | ||
2601 | set_std_prefix (gcc_exec_prefix, len); | |
2602 | add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC", 0, 0, NULL_PTR); | |
2603 | add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC", 0, 0, NULL_PTR); | |
2604 | } | |
2605 | ||
2606 | /* COMPILER_PATH and LIBRARY_PATH have values | |
2607 | that are lists of directory names with colons. */ | |
2608 | ||
2609 | GET_ENVIRONMENT (temp, "COMPILER_PATH"); | |
2610 | if (temp) | |
2611 | { | |
2612 | char *startp, *endp; | |
2613 | char *nstore = (char *) alloca (strlen (temp) + 3); | |
2614 | ||
2615 | startp = endp = temp; | |
2616 | while (1) | |
2617 | { | |
2618 | if (*endp == PATH_SEPARATOR || *endp == 0) | |
2619 | { | |
2620 | strncpy (nstore, startp, endp-startp); | |
2621 | if (endp == startp) | |
2622 | strcpy (nstore, concat (".", dir_separator_str, NULL_PTR)); | |
2623 | else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR) | |
2624 | { | |
2625 | nstore[endp-startp] = DIR_SEPARATOR; | |
2626 | nstore[endp-startp+1] = 0; | |
2627 | } | |
2628 | else | |
2629 | nstore[endp-startp] = 0; | |
2630 | add_prefix (&exec_prefixes, nstore, 0, 0, 0, NULL_PTR); | |
2631 | add_prefix (&include_prefixes, | |
2632 | concat (nstore, "include", NULL_PTR), | |
2633 | 0, 0, 0, NULL_PTR); | |
2634 | if (*endp == 0) | |
2635 | break; | |
2636 | endp = startp = endp + 1; | |
2637 | } | |
2638 | else | |
2639 | endp++; | |
2640 | } | |
2641 | } | |
2642 | ||
2643 | GET_ENVIRONMENT (temp, "LIBRARY_PATH"); | |
2644 | if (temp && *cross_compile == '0') | |
2645 | { | |
2646 | char *startp, *endp; | |
2647 | char *nstore = (char *) alloca (strlen (temp) + 3); | |
2648 | ||
2649 | startp = endp = temp; | |
2650 | while (1) | |
2651 | { | |
2652 | if (*endp == PATH_SEPARATOR || *endp == 0) | |
2653 | { | |
2654 | strncpy (nstore, startp, endp-startp); | |
2655 | if (endp == startp) | |
2656 | strcpy (nstore, concat (".", dir_separator_str, NULL_PTR)); | |
2657 | else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR) | |
2658 | { | |
2659 | nstore[endp-startp] = DIR_SEPARATOR; | |
2660 | nstore[endp-startp+1] = 0; | |
2661 | } | |
2662 | else | |
2663 | nstore[endp-startp] = 0; | |
2664 | add_prefix (&startfile_prefixes, nstore, NULL_PTR, | |
2665 | 0, 0, NULL_PTR); | |
2666 | if (*endp == 0) | |
2667 | break; | |
2668 | endp = startp = endp + 1; | |
2669 | } | |
2670 | else | |
2671 | endp++; | |
2672 | } | |
2673 | } | |
2674 | ||
2675 | /* Use LPATH like LIBRARY_PATH (for the CMU build program). */ | |
2676 | GET_ENVIRONMENT (temp, "LPATH"); | |
2677 | if (temp && *cross_compile == '0') | |
2678 | { | |
2679 | char *startp, *endp; | |
2680 | char *nstore = (char *) alloca (strlen (temp) + 3); | |
2681 | ||
2682 | startp = endp = temp; | |
2683 | while (1) | |
2684 | { | |
2685 | if (*endp == PATH_SEPARATOR || *endp == 0) | |
2686 | { | |
2687 | strncpy (nstore, startp, endp-startp); | |
2688 | if (endp == startp) | |
2689 | strcpy (nstore, concat (".", dir_separator_str, NULL_PTR)); | |
2690 | else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR) | |
2691 | { | |
2692 | nstore[endp-startp] = DIR_SEPARATOR; | |
2693 | nstore[endp-startp+1] = 0; | |
2694 | } | |
2695 | else | |
2696 | nstore[endp-startp] = 0; | |
2697 | add_prefix (&startfile_prefixes, nstore, NULL_PTR, | |
2698 | 0, 0, NULL_PTR); | |
2699 | if (*endp == 0) | |
2700 | break; | |
2701 | endp = startp = endp + 1; | |
2702 | } | |
2703 | else | |
2704 | endp++; | |
2705 | } | |
2706 | } | |
2707 | ||
2708 | /* Convert new-style -- options to old-style. */ | |
2709 | translate_options (&argc, &argv); | |
2710 | ||
2711 | #ifdef LANG_SPECIFIC_DRIVER | |
2712 | /* Do language-specific adjustment/addition of flags. */ | |
2713 | lang_specific_driver (fatal, &argc, &argv, &added_libraries); | |
2714 | #endif | |
2715 | ||
2716 | /* Scan argv twice. Here, the first time, just count how many switches | |
2717 | there will be in their vector, and how many input files in theirs. | |
2718 | Here we also parse the switches that cc itself uses (e.g. -v). */ | |
2719 | ||
2720 | for (i = 1; i < argc; i++) | |
2721 | { | |
2722 | if (! strcmp (argv[i], "-dumpspecs")) | |
2723 | { | |
2724 | struct spec_list *sl; | |
2725 | init_spec (); | |
2726 | for (sl = specs; sl; sl = sl->next) | |
2727 | printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec)); | |
2728 | exit (0); | |
2729 | } | |
2730 | else if (! strcmp (argv[i], "-dumpversion")) | |
2731 | { | |
2732 | printf ("%s\n", spec_version); | |
2733 | exit (0); | |
2734 | } | |
2735 | else if (! strcmp (argv[i], "-dumpmachine")) | |
2736 | { | |
2737 | printf ("%s\n", spec_machine); | |
2738 | exit (0); | |
2739 | } | |
2740 | else if (strcmp (argv[i], "-fhelp") == 0) | |
2741 | { | |
2742 | /* translate_options () has turned --help into -fhelp. */ | |
2743 | print_help_list = 1; | |
2744 | ||
2745 | /* We will be passing a dummy file on to the sub-processes. */ | |
2746 | n_infiles++; | |
2747 | n_switches++; | |
2748 | ||
2749 | add_preprocessor_option ("--help", 6); | |
2750 | add_assembler_option ("--help", 6); | |
2751 | add_linker_option ("--help", 6); | |
2752 | } | |
2753 | else if (! strcmp (argv[i], "-print-search-dirs")) | |
2754 | print_search_dirs = 1; | |
2755 | else if (! strcmp (argv[i], "-print-libgcc-file-name")) | |
2756 | print_file_name = "libgcc.a"; | |
2757 | else if (! strncmp (argv[i], "-print-file-name=", 17)) | |
2758 | print_file_name = argv[i] + 17; | |
2759 | else if (! strncmp (argv[i], "-print-prog-name=", 17)) | |
2760 | print_prog_name = argv[i] + 17; | |
2761 | else if (! strcmp (argv[i], "-print-multi-lib")) | |
2762 | print_multi_lib = 1; | |
2763 | else if (! strcmp (argv[i], "-print-multi-directory")) | |
2764 | print_multi_directory = 1; | |
2765 | else if (! strncmp (argv[i], "-Wa,", 4)) | |
2766 | { | |
2767 | int prev, j; | |
2768 | /* Pass the rest of this option to the assembler. */ | |
2769 | ||
2770 | /* Split the argument at commas. */ | |
2771 | prev = 4; | |
2772 | for (j = 4; argv[i][j]; j++) | |
2773 | if (argv[i][j] == ',') | |
2774 | { | |
2775 | add_assembler_option (argv[i] + prev, j - prev); | |
2776 | prev = j + 1; | |
2777 | } | |
2778 | ||
2779 | /* Record the part after the last comma. */ | |
2780 | add_assembler_option (argv[i] + prev, j - prev); | |
2781 | } | |
2782 | else if (! strncmp (argv[i], "-Wp,", 4)) | |
2783 | { | |
2784 | int prev, j; | |
2785 | /* Pass the rest of this option to the preprocessor. */ | |
2786 | ||
2787 | /* Split the argument at commas. */ | |
2788 | prev = 4; | |
2789 | for (j = 4; argv[i][j]; j++) | |
2790 | if (argv[i][j] == ',') | |
2791 | { | |
2792 | add_preprocessor_option (argv[i] + prev, j - prev); | |
2793 | prev = j + 1; | |
2794 | } | |
2795 | ||
2796 | /* Record the part after the last comma. */ | |
2797 | add_preprocessor_option (argv[i] + prev, j - prev); | |
2798 | } | |
2799 | else if (argv[i][0] == '+' && argv[i][1] == 'e') | |
2800 | /* The +e options to the C++ front-end. */ | |
2801 | n_switches++; | |
2802 | else if (strncmp (argv[i], "-Wl,", 4) == 0) | |
2803 | { | |
2804 | int j; | |
2805 | /* Split the argument at commas. */ | |
2806 | for (j = 3; argv[i][j]; j++) | |
2807 | n_infiles += (argv[i][j] == ','); | |
2808 | } | |
2809 | else if (strcmp (argv[i], "-Xlinker") == 0) | |
2810 | { | |
2811 | if (i + 1 == argc) | |
2812 | fatal ("argument to `-Xlinker' is missing"); | |
2813 | ||
2814 | n_infiles++; | |
2815 | i++; | |
2816 | } | |
2817 | else if (strncmp (argv[i], "-l", 2) == 0) | |
2818 | n_infiles++; | |
2819 | else if (strcmp (argv[i], "-save-temps") == 0) | |
2820 | { | |
2821 | save_temps_flag = 1; | |
2822 | n_switches++; | |
2823 | } | |
2824 | else if (strcmp (argv[i], "-specs") == 0) | |
2825 | { | |
2826 | struct user_specs *user = (struct user_specs *) | |
2827 | xmalloc (sizeof (struct user_specs)); | |
2828 | if (++i >= argc) | |
2829 | fatal ("argument to `-specs' is missing"); | |
2830 | ||
2831 | user->next = (struct user_specs *)0; | |
2832 | user->filename = argv[i]; | |
2833 | if (user_specs_tail) | |
2834 | user_specs_tail->next = user; | |
2835 | else | |
2836 | user_specs_head = user; | |
2837 | user_specs_tail = user; | |
2838 | } | |
2839 | else if (strncmp (argv[i], "-specs=", 7) == 0) | |
2840 | { | |
2841 | struct user_specs *user = (struct user_specs *) | |
2842 | xmalloc (sizeof (struct user_specs)); | |
2843 | if (strlen (argv[i]) == 7) | |
2844 | fatal ("argument to `-specs=' is missing"); | |
2845 | ||
2846 | user->next = (struct user_specs *)0; | |
2847 | user->filename = argv[i]+7; | |
2848 | if (user_specs_tail) | |
2849 | user_specs_tail->next = user; | |
2850 | else | |
2851 | user_specs_head = user; | |
2852 | user_specs_tail = user; | |
2853 | } | |
2854 | else if (argv[i][0] == '-' && argv[i][1] != 0) | |
2855 | { | |
2856 | register char *p = &argv[i][1]; | |
2857 | register int c = *p; | |
2858 | ||
2859 | switch (c) | |
2860 | { | |
2861 | case 'b': | |
2862 | n_switches++; | |
2863 | if (p[1] == 0 && i + 1 == argc) | |
2864 | fatal ("argument to `-b' is missing"); | |
2865 | if (p[1] == 0) | |
2866 | spec_machine = argv[++i]; | |
2867 | else | |
2868 | spec_machine = p + 1; | |
2869 | ||
2870 | warn_std_ptr = &warn_std; | |
2871 | break; | |
2872 | ||
2873 | case 'B': | |
2874 | { | |
2875 | char *value; | |
2876 | if (p[1] == 0 && i + 1 == argc) | |
2877 | fatal ("argument to `-B' is missing"); | |
2878 | if (p[1] == 0) | |
2879 | value = argv[++i]; | |
2880 | else | |
2881 | value = p + 1; | |
2882 | add_prefix (&exec_prefixes, value, NULL_PTR, 1, 0, &warn_B); | |
2883 | add_prefix (&startfile_prefixes, value, NULL_PTR, | |
2884 | 1, 0, &warn_B); | |
2885 | add_prefix (&include_prefixes, concat (value, "include", | |
2886 | NULL_PTR), | |
2887 | NULL_PTR, 1, 0, NULL_PTR); | |
2888 | ||
2889 | /* As a kludge, if the arg is "[foo/]stageN/", just add | |
2890 | "[foo/]include" to the include prefix. */ | |
2891 | { | |
2892 | int len = strlen (value); | |
2893 | if ((len == 7 | |
2894 | || (len > 7 | |
2895 | && (value[len - 8] == '/' | |
2896 | || value[len - 8] == DIR_SEPARATOR))) | |
2897 | && strncmp (value + len - 7, "stage", 5) == 0 | |
2898 | && ISDIGIT (value[len - 2]) | |
2899 | && (value[len - 1] == '/' | |
2900 | || value[len - 1] == DIR_SEPARATOR)) | |
2901 | { | |
2902 | if (len == 7) | |
2903 | add_prefix (&include_prefixes, "include", NULL_PTR, | |
2904 | 1, 0, NULL_PTR); | |
2905 | else | |
2906 | { | |
2907 | char *string = xmalloc (len + 1); | |
2908 | strncpy (string, value, len-7); | |
2909 | strcpy (string+len-7, "include"); | |
2910 | add_prefix (&include_prefixes, string, NULL_PTR, | |
2911 | 1, 0, NULL_PTR); | |
2912 | } | |
2913 | } | |
2914 | } | |
2915 | n_switches++; | |
2916 | } | |
2917 | break; | |
2918 | ||
2919 | case 'v': /* Print our subcommands and print versions. */ | |
2920 | n_switches++; | |
2921 | /* If they do anything other than exactly `-v', don't set | |
2922 | verbose_flag; rather, continue on to give the error. */ | |
2923 | if (p[1] != 0) | |
2924 | break; | |
2925 | verbose_flag++; | |
2926 | break; | |
2927 | ||
2928 | case 'V': | |
2929 | n_switches++; | |
2930 | if (p[1] == 0 && i + 1 == argc) | |
2931 | fatal ("argument to `-V' is missing"); | |
2932 | if (p[1] == 0) | |
2933 | spec_version = argv[++i]; | |
2934 | else | |
2935 | spec_version = p + 1; | |
2936 | compiler_version = spec_version; | |
2937 | warn_std_ptr = &warn_std; | |
2938 | ||
2939 | /* Validate the version number. Use the same checks | |
2940 | done when inserting it into a spec. | |
2941 | ||
2942 | The format of the version string is | |
2943 | ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */ | |
2944 | { | |
2945 | char *v = compiler_version; | |
2946 | ||
2947 | /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */ | |
2948 | while (! ISDIGIT (*v)) | |
2949 | v++; | |
2950 | ||
2951 | if (v > compiler_version && v[-1] != '-') | |
2952 | fatal ("invalid version number format"); | |
2953 | ||
2954 | /* Set V after the first period. */ | |
2955 | while (ISDIGIT (*v)) | |
2956 | v++; | |
2957 | ||
2958 | if (*v != '.') | |
2959 | fatal ("invalid version number format"); | |
2960 | ||
2961 | v++; | |
2962 | while (ISDIGIT (*v)) | |
2963 | v++; | |
2964 | ||
2965 | if (*v != 0 && *v != ' ' && *v != '.' && *v != '-') | |
2966 | fatal ("invalid version number format"); | |
2967 | } | |
2968 | break; | |
2969 | ||
2970 | case 'S': | |
2971 | case 'c': | |
2972 | if (p[1] == 0) | |
2973 | { | |
2974 | have_c = 1; | |
2975 | n_switches++; | |
2976 | break; | |
2977 | } | |
2978 | goto normal_switch; | |
2979 | ||
2980 | case 'o': | |
2981 | have_o = 1; | |
2982 | #if defined(HAVE_EXECUTABLE_SUFFIX) | |
2983 | if (! have_c) | |
2984 | { | |
2985 | int skip; | |
2986 | ||
2987 | /* Forward scan, just in case -S or -c is specified | |
2988 | after -o. */ | |
2989 | int j = i + 1; | |
2990 | if (p[1] == 0) | |
2991 | ++j; | |
2992 | while (j < argc) | |
2993 | { | |
2994 | if (argv[j][0] == '-') | |
2995 | { | |
2996 | if (SWITCH_CURTAILS_COMPILATION (argv[j][1]) | |
2997 | && argv[j][2] == 0) | |
2998 | { | |
2999 | have_c = 1; | |
3000 | break; | |
3001 | } | |
3002 | else if (skip = SWITCH_TAKES_ARG (argv[j][1])) | |
3003 | j += skip - (argv[j][2] != 0); | |
3004 | else if (skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1)) | |
3005 | j += skip; | |
3006 | } | |
3007 | j++; | |
3008 | } | |
3009 | } | |
3010 | #endif | |
3011 | #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX) | |
3012 | if (p[1] == 0) | |
3013 | argv[i+1] = convert_filename (argv[i+1], ! have_c); | |
3014 | else | |
3015 | argv[i] = convert_filename (argv[i], ! have_c); | |
3016 | #endif | |
3017 | goto normal_switch; | |
3018 | ||
3019 | default: | |
3020 | normal_switch: | |
3021 | n_switches++; | |
3022 | ||
3023 | if (SWITCH_TAKES_ARG (c) > (p[1] != 0)) | |
3024 | i += SWITCH_TAKES_ARG (c) - (p[1] != 0); | |
3025 | else if (WORD_SWITCH_TAKES_ARG (p)) | |
3026 | i += WORD_SWITCH_TAKES_ARG (p); | |
3027 | } | |
3028 | } | |
3029 | else | |
3030 | { | |
3031 | n_infiles++; | |
3032 | lang_n_infiles++; | |
3033 | } | |
3034 | } | |
3035 | ||
3036 | if (have_c && have_o && lang_n_infiles > 1) | |
3037 | fatal ("cannot specify -o with -c or -S and multiple compilations"); | |
3038 | ||
3039 | /* Set up the search paths before we go looking for config files. */ | |
3040 | ||
3041 | /* These come before the md prefixes so that we will find gcc's subcommands | |
3042 | (such as cpp) rather than those of the host system. */ | |
3043 | /* Use 2 as fourth arg meaning try just the machine as a suffix, | |
3044 | as well as trying the machine and the version. */ | |
3045 | #ifndef OS2 | |
3046 | add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS", | |
3047 | 0, 2, warn_std_ptr); | |
3048 | add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS", | |
3049 | 0, 2, warn_std_ptr); | |
3050 | #endif | |
3051 | ||
3052 | add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS", | |
3053 | 0, 1, warn_std_ptr); | |
3054 | add_prefix (&startfile_prefixes, standard_exec_prefix_1, "BINUTILS", | |
3055 | 0, 1, warn_std_ptr); | |
3056 | ||
3057 | tooldir_prefix = concat (tooldir_base_prefix, spec_machine, | |
3058 | dir_separator_str, NULL_PTR); | |
3059 | ||
3060 | /* If tooldir is relative, base it on exec_prefixes. A relative | |
3061 | tooldir lets us move the installed tree as a unit. | |
3062 | ||
3063 | If GCC_EXEC_PREFIX is defined, then we want to add two relative | |
3064 | directories, so that we can search both the user specified directory | |
3065 | and the standard place. */ | |
3066 | ||
3067 | if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR) | |
3068 | { | |
3069 | if (gcc_exec_prefix) | |
3070 | { | |
3071 | char *gcc_exec_tooldir_prefix | |
3072 | = concat (gcc_exec_prefix, spec_machine, dir_separator_str, | |
3073 | spec_version, dir_separator_str, tooldir_prefix, NULL_PTR); | |
3074 | ||
3075 | add_prefix (&exec_prefixes, | |
3076 | concat (gcc_exec_tooldir_prefix, "bin", | |
3077 | dir_separator_str, NULL_PTR), | |
3078 | NULL_PTR, 0, 0, NULL_PTR); | |
3079 | add_prefix (&startfile_prefixes, | |
3080 | concat (gcc_exec_tooldir_prefix, "lib", | |
3081 | dir_separator_str, NULL_PTR), | |
3082 | NULL_PTR, 0, 0, NULL_PTR); | |
3083 | } | |
3084 | ||
3085 | tooldir_prefix = concat (standard_exec_prefix, spec_machine, | |
3086 | dir_separator_str, spec_version, | |
3087 | dir_separator_str, tooldir_prefix, NULL_PTR); | |
3088 | } | |
3089 | ||
3090 | add_prefix (&exec_prefixes, | |
3091 | concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR), | |
3092 | "BINUTILS", 0, 0, NULL_PTR); | |
3093 | add_prefix (&startfile_prefixes, | |
3094 | concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR), | |
3095 | "BINUTILS", 0, 0, NULL_PTR); | |
3096 | ||
3097 | /* More prefixes are enabled in main, after we read the specs file | |
3098 | and determine whether this is cross-compilation or not. */ | |
3099 | ||
3100 | ||
3101 | /* Then create the space for the vectors and scan again. */ | |
3102 | ||
3103 | switches = ((struct switchstr *) | |
3104 | xmalloc ((n_switches + 1) * sizeof (struct switchstr))); | |
3105 | infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile)); | |
3106 | n_switches = 0; | |
3107 | n_infiles = 0; | |
3108 | last_language_n_infiles = -1; | |
3109 | ||
3110 | /* This, time, copy the text of each switch and store a pointer | |
3111 | to the copy in the vector of switches. | |
3112 | Store all the infiles in their vector. */ | |
3113 | ||
3114 | for (i = 1; i < argc; i++) | |
3115 | { | |
3116 | /* Just skip the switches that were handled by the preceding loop. */ | |
3117 | if (! strncmp (argv[i], "-Wa,", 4)) | |
3118 | ; | |
3119 | else if (! strncmp (argv[i], "-Wp,", 4)) | |
3120 | ; | |
3121 | else if (! strcmp (argv[i], "-print-search-dirs")) | |
3122 | ; | |
3123 | else if (! strcmp (argv[i], "-print-libgcc-file-name")) | |
3124 | ; | |
3125 | else if (! strncmp (argv[i], "-print-file-name=", 17)) | |
3126 | ; | |
3127 | else if (! strncmp (argv[i], "-print-prog-name=", 17)) | |
3128 | ; | |
3129 | else if (! strcmp (argv[i], "-print-multi-lib")) | |
3130 | ; | |
3131 | else if (! strcmp (argv[i], "-print-multi-directory")) | |
3132 | ; | |
3133 | else if (strcmp (argv[i], "-fhelp") == 0) | |
3134 | { | |
3135 | if (verbose_flag) | |
3136 | { | |
3137 | /* Create a dummy input file, so that we can pass --help on to | |
3138 | the various sub-processes. */ | |
3139 | infiles[n_infiles].language = "c"; | |
3140 | infiles[n_infiles++].name = "help-dummy"; | |
3141 | ||
3142 | /* Preserve the --help switch so that it can be caught by the | |
3143 | cc1 spec string. */ | |
3144 | switches[n_switches].part1 = "--help"; | |
3145 | switches[n_switches].args = 0; | |
3146 | switches[n_switches].live_cond = 0; | |
3147 | switches[n_switches].valid = 0; | |
3148 | ||
3149 | n_switches++; | |
3150 | } | |
3151 | } | |
3152 | else if (argv[i][0] == '+' && argv[i][1] == 'e') | |
3153 | { | |
3154 | /* Compensate for the +e options to the C++ front-end; | |
3155 | they're there simply for cfront call-compatibility. We do | |
3156 | some magic in default_compilers to pass them down properly. | |
3157 | Note we deliberately start at the `+' here, to avoid passing | |
3158 | -e0 or -e1 down into the linker. */ | |
3159 | switches[n_switches].part1 = &argv[i][0]; | |
3160 | switches[n_switches].args = 0; | |
3161 | switches[n_switches].live_cond = 0; | |
3162 | switches[n_switches].valid = 0; | |
3163 | n_switches++; | |
3164 | } | |
3165 | else if (strncmp (argv[i], "-Wl,", 4) == 0) | |
3166 | { | |
3167 | int prev, j; | |
3168 | /* Split the argument at commas. */ | |
3169 | prev = 4; | |
3170 | for (j = 4; argv[i][j]; j++) | |
3171 | if (argv[i][j] == ',') | |
3172 | { | |
3173 | infiles[n_infiles].language = "*"; | |
3174 | infiles[n_infiles++].name | |
3175 | = save_string (argv[i] + prev, j - prev); | |
3176 | prev = j + 1; | |
3177 | } | |
3178 | /* Record the part after the last comma. */ | |
3179 | infiles[n_infiles].language = "*"; | |
3180 | infiles[n_infiles++].name = argv[i] + prev; | |
3181 | } | |
3182 | else if (strcmp (argv[i], "-Xlinker") == 0) | |
3183 | { | |
3184 | infiles[n_infiles].language = "*"; | |
3185 | infiles[n_infiles++].name = argv[++i]; | |
3186 | } | |
3187 | else if (strncmp (argv[i], "-l", 2) == 0) | |
3188 | { | |
3189 | infiles[n_infiles].language = "*"; | |
3190 | infiles[n_infiles++].name = argv[i]; | |
3191 | } | |
3192 | else if (strcmp (argv[i], "-specs") == 0) | |
3193 | i++; | |
3194 | else if (strncmp (argv[i], "-specs=", 7) == 0) | |
3195 | ; | |
3196 | /* -save-temps overrides -pipe, so that temp files are produced */ | |
3197 | else if (save_temps_flag && strcmp (argv[i], "-pipe") == 0) | |
3198 | error ("Warning: -pipe ignored since -save-temps specified"); | |
3199 | else if (argv[i][0] == '-' && argv[i][1] != 0) | |
3200 | { | |
3201 | register char *p = &argv[i][1]; | |
3202 | register int c = *p; | |
3203 | ||
3204 | if (c == 'x') | |
3205 | { | |
3206 | if (p[1] == 0 && i + 1 == argc) | |
3207 | fatal ("argument to `-x' is missing"); | |
3208 | if (p[1] == 0) | |
3209 | spec_lang = argv[++i]; | |
3210 | else | |
3211 | spec_lang = p + 1; | |
3212 | if (! strcmp (spec_lang, "none")) | |
3213 | /* Suppress the warning if -xnone comes after the last input | |
3214 | file, because alternate command interfaces like g++ might | |
3215 | find it useful to place -xnone after each input file. */ | |
3216 | spec_lang = 0; | |
3217 | else | |
3218 | last_language_n_infiles = n_infiles; | |
3219 | continue; | |
3220 | } | |
3221 | switches[n_switches].part1 = p; | |
3222 | /* Deal with option arguments in separate argv elements. */ | |
3223 | if ((SWITCH_TAKES_ARG (c) > (p[1] != 0)) | |
3224 | || WORD_SWITCH_TAKES_ARG (p)) | |
3225 | { | |
3226 | int j = 0; | |
3227 | int n_args = WORD_SWITCH_TAKES_ARG (p); | |
3228 | ||
3229 | if (n_args == 0) | |
3230 | { | |
3231 | /* Count only the option arguments in separate argv elements. */ | |
3232 | n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0); | |
3233 | } | |
3234 | if (i + n_args >= argc) | |
3235 | fatal ("argument to `-%s' is missing", p); | |
3236 | switches[n_switches].args | |
3237 | = (char **) xmalloc ((n_args + 1) * sizeof (char *)); | |
3238 | while (j < n_args) | |
3239 | switches[n_switches].args[j++] = argv[++i]; | |
3240 | /* Null-terminate the vector. */ | |
3241 | switches[n_switches].args[j] = 0; | |
3242 | } | |
3243 | else if (index (switches_need_spaces, c)) | |
3244 | { | |
3245 | /* On some systems, ld cannot handle some options without | |
3246 | a space. So split the option from its argument. */ | |
3247 | char *part1 = (char *) xmalloc (2); | |
3248 | part1[0] = c; | |
3249 | part1[1] = '\0'; | |
3250 | ||
3251 | switches[n_switches].part1 = part1; | |
3252 | switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *)); | |
3253 | switches[n_switches].args[0] = xmalloc (strlen (p)); | |
3254 | strcpy (switches[n_switches].args[0], &p[1]); | |
3255 | switches[n_switches].args[1] = 0; | |
3256 | } | |
3257 | else | |
3258 | switches[n_switches].args = 0; | |
3259 | ||
3260 | switches[n_switches].live_cond = 0; | |
3261 | switches[n_switches].valid = 0; | |
3262 | /* This is always valid, since gcc.c itself understands it. */ | |
3263 | if (!strcmp (p, "save-temps")) | |
3264 | switches[n_switches].valid = 1; | |
3265 | else | |
3266 | { | |
3267 | char ch = switches[n_switches].part1[0]; | |
3268 | if (ch == 'V' || ch == 'b' || ch == 'B') | |
3269 | switches[n_switches].valid = 1; | |
3270 | } | |
3271 | n_switches++; | |
3272 | } | |
3273 | else | |
3274 | { | |
3275 | #ifdef HAVE_OBJECT_SUFFIX | |
3276 | argv[i] = convert_filename (argv[i], 0); | |
3277 | #endif | |
3278 | ||
3279 | if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0) | |
3280 | { | |
3281 | perror_with_name (argv[i]); | |
3282 | error_count++; | |
3283 | } | |
3284 | else | |
3285 | { | |
3286 | infiles[n_infiles].language = spec_lang; | |
3287 | infiles[n_infiles++].name = argv[i]; | |
3288 | } | |
3289 | } | |
3290 | } | |
3291 | ||
3292 | if (n_infiles == last_language_n_infiles && spec_lang != 0) | |
3293 | error ("Warning: `-x %s' after last input file has no effect", spec_lang); | |
3294 | ||
3295 | switches[n_switches].part1 = 0; | |
3296 | infiles[n_infiles].name = 0; | |
3297 | } | |
3298 | \f | |
3299 | /* Process a spec string, accumulating and running commands. */ | |
3300 | ||
3301 | /* These variables describe the input file name. | |
3302 | input_file_number is the index on outfiles of this file, | |
3303 | so that the output file name can be stored for later use by %o. | |
3304 | input_basename is the start of the part of the input file | |
3305 | sans all directory names, and basename_length is the number | |
3306 | of characters starting there excluding the suffix .c or whatever. */ | |
3307 | ||
3308 | char *input_filename; | |
3309 | static int input_file_number; | |
3310 | size_t input_filename_length; | |
3311 | static int basename_length; | |
3312 | static char *input_basename; | |
3313 | static char *input_suffix; | |
3314 | ||
3315 | /* These are variables used within do_spec and do_spec_1. */ | |
3316 | ||
3317 | /* Nonzero if an arg has been started and not yet terminated | |
3318 | (with space, tab or newline). */ | |
3319 | static int arg_going; | |
3320 | ||
3321 | /* Nonzero means %d or %g has been seen; the next arg to be terminated | |
3322 | is a temporary file name. */ | |
3323 | static int delete_this_arg; | |
3324 | ||
3325 | /* Nonzero means %w has been seen; the next arg to be terminated | |
3326 | is the output file name of this compilation. */ | |
3327 | static int this_is_output_file; | |
3328 | ||
3329 | /* Nonzero means %s has been seen; the next arg to be terminated | |
3330 | is the name of a library file and we should try the standard | |
3331 | search dirs for it. */ | |
3332 | static int this_is_library_file; | |
3333 | ||
3334 | /* Nonzero means that the input of this command is coming from a pipe. */ | |
3335 | static int input_from_pipe; | |
3336 | ||
3337 | /* Process the spec SPEC and run the commands specified therein. | |
3338 | Returns 0 if the spec is successfully processed; -1 if failed. */ | |
3339 | ||
3340 | int | |
3341 | do_spec (spec) | |
3342 | char *spec; | |
3343 | { | |
3344 | int value; | |
3345 | ||
3346 | clear_args (); | |
3347 | arg_going = 0; | |
3348 | delete_this_arg = 0; | |
3349 | this_is_output_file = 0; | |
3350 | this_is_library_file = 0; | |
3351 | input_from_pipe = 0; | |
3352 | ||
3353 | value = do_spec_1 (spec, 0, NULL_PTR); | |
3354 | ||
3355 | /* Force out any unfinished command. | |
3356 | If -pipe, this forces out the last command if it ended in `|'. */ | |
3357 | if (value == 0) | |
3358 | { | |
3359 | if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|")) | |
3360 | argbuf_index--; | |
3361 | ||
3362 | if (argbuf_index > 0) | |
3363 | value = execute (); | |
3364 | } | |
3365 | ||
3366 | return value; | |
3367 | } | |
3368 | ||
3369 | /* Process the sub-spec SPEC as a portion of a larger spec. | |
3370 | This is like processing a whole spec except that we do | |
3371 | not initialize at the beginning and we do not supply a | |
3372 | newline by default at the end. | |
3373 | INSWITCH nonzero means don't process %-sequences in SPEC; | |
3374 | in this case, % is treated as an ordinary character. | |
3375 | This is used while substituting switches. | |
3376 | INSWITCH nonzero also causes SPC not to terminate an argument. | |
3377 | ||
3378 | Value is zero unless a line was finished | |
3379 | and the command on that line reported an error. */ | |
3380 | ||
3381 | static int | |
3382 | do_spec_1 (spec, inswitch, soft_matched_part) | |
3383 | char *spec; | |
3384 | int inswitch; | |
3385 | char *soft_matched_part; | |
3386 | { | |
3387 | register char *p = spec; | |
3388 | register int c; | |
3389 | int i; | |
3390 | char *string; | |
3391 | int value; | |
3392 | ||
3393 | while ((c = *p++)) | |
3394 | /* If substituting a switch, treat all chars like letters. | |
3395 | Otherwise, NL, SPC, TAB and % are special. */ | |
3396 | switch (inswitch ? 'a' : c) | |
3397 | { | |
3398 | case '\n': | |
3399 | /* End of line: finish any pending argument, | |
3400 | then run the pending command if one has been started. */ | |
3401 | if (arg_going) | |
3402 | { | |
3403 | obstack_1grow (&obstack, 0); | |
3404 | string = obstack_finish (&obstack); | |
3405 | if (this_is_library_file) | |
3406 | string = find_file (string); | |
3407 | store_arg (string, delete_this_arg, this_is_output_file); | |
3408 | if (this_is_output_file) | |
3409 | outfiles[input_file_number] = string; | |
3410 | } | |
3411 | arg_going = 0; | |
3412 | ||
3413 | if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|")) | |
3414 | { | |
3415 | for (i = 0; i < n_switches; i++) | |
3416 | if (!strcmp (switches[i].part1, "pipe")) | |
3417 | break; | |
3418 | ||
3419 | /* A `|' before the newline means use a pipe here, | |
3420 | but only if -pipe was specified. | |
3421 | Otherwise, execute now and don't pass the `|' as an arg. */ | |
3422 | if (i < n_switches) | |
3423 | { | |
3424 | input_from_pipe = 1; | |
3425 | switches[i].valid = 1; | |
3426 | break; | |
3427 | } | |
3428 | else | |
3429 | argbuf_index--; | |
3430 | } | |
3431 | ||
3432 | if (argbuf_index > 0) | |
3433 | { | |
3434 | value = execute (); | |
3435 | if (value) | |
3436 | return value; | |
3437 | } | |
3438 | /* Reinitialize for a new command, and for a new argument. */ | |
3439 | clear_args (); | |
3440 | arg_going = 0; | |
3441 | delete_this_arg = 0; | |
3442 | this_is_output_file = 0; | |
3443 | this_is_library_file = 0; | |
3444 | input_from_pipe = 0; | |
3445 | break; | |
3446 | ||
3447 | case '|': | |
3448 | /* End any pending argument. */ | |
3449 | if (arg_going) | |
3450 | { | |
3451 | obstack_1grow (&obstack, 0); | |
3452 | string = obstack_finish (&obstack); | |
3453 | if (this_is_library_file) | |
3454 | string = find_file (string); | |
3455 | store_arg (string, delete_this_arg, this_is_output_file); | |
3456 | if (this_is_output_file) | |
3457 | outfiles[input_file_number] = string; | |
3458 | } | |
3459 | ||
3460 | /* Use pipe */ | |
3461 | obstack_1grow (&obstack, c); | |
3462 | arg_going = 1; | |
3463 | break; | |
3464 | ||
3465 | case '\t': | |
3466 | case ' ': | |
3467 | /* Space or tab ends an argument if one is pending. */ | |
3468 | if (arg_going) | |
3469 | { | |
3470 | obstack_1grow (&obstack, 0); | |
3471 | string = obstack_finish (&obstack); | |
3472 | if (this_is_library_file) | |
3473 | string = find_file (string); | |
3474 | store_arg (string, delete_this_arg, this_is_output_file); | |
3475 | if (this_is_output_file) | |
3476 | outfiles[input_file_number] = string; | |
3477 | } | |
3478 | /* Reinitialize for a new argument. */ | |
3479 | arg_going = 0; | |
3480 | delete_this_arg = 0; | |
3481 | this_is_output_file = 0; | |
3482 | this_is_library_file = 0; | |
3483 | break; | |
3484 | ||
3485 | case '%': | |
3486 | switch (c = *p++) | |
3487 | { | |
3488 | case 0: | |
3489 | fatal ("Invalid specification! Bug in cc."); | |
3490 | ||
3491 | case 'b': | |
3492 | obstack_grow (&obstack, input_basename, basename_length); | |
3493 | arg_going = 1; | |
3494 | break; | |
3495 | ||
3496 | case 'd': | |
3497 | delete_this_arg = 2; | |
3498 | break; | |
3499 | ||
3500 | /* Dump out the directories specified with LIBRARY_PATH, | |
3501 | followed by the absolute directories | |
3502 | that we search for startfiles. */ | |
3503 | case 'D': | |
3504 | { | |
3505 | struct prefix_list *pl = startfile_prefixes.plist; | |
3506 | size_t bufsize = 100; | |
3507 | char *buffer = (char *) xmalloc (bufsize); | |
3508 | int idx; | |
3509 | ||
3510 | for (; pl; pl = pl->next) | |
3511 | { | |
3512 | #ifdef RELATIVE_PREFIX_NOT_LINKDIR | |
3513 | /* Used on systems which record the specified -L dirs | |
3514 | and use them to search for dynamic linking. */ | |
3515 | /* Relative directories always come from -B, | |
3516 | and it is better not to use them for searching | |
3517 | at run time. In particular, stage1 loses */ | |
3518 | if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR) | |
3519 | continue; | |
3520 | #endif | |
3521 | /* Try subdirectory if there is one. */ | |
3522 | if (multilib_dir != NULL) | |
3523 | { | |
3524 | if (machine_suffix) | |
3525 | { | |
3526 | if (strlen (pl->prefix) + strlen (machine_suffix) | |
3527 | >= bufsize) | |
3528 | bufsize = (strlen (pl->prefix) | |
3529 | + strlen (machine_suffix)) * 2 + 1; | |
3530 | buffer = (char *) xrealloc (buffer, bufsize); | |
3531 | strcpy (buffer, pl->prefix); | |
3532 | strcat (buffer, machine_suffix); | |
3533 | if (is_directory (buffer, multilib_dir, 1)) | |
3534 | { | |
3535 | do_spec_1 ("-L", 0, NULL_PTR); | |
3536 | #ifdef SPACE_AFTER_L_OPTION | |
3537 | do_spec_1 (" ", 0, NULL_PTR); | |
3538 | #endif | |
3539 | do_spec_1 (buffer, 1, NULL_PTR); | |
3540 | do_spec_1 (multilib_dir, 1, NULL_PTR); | |
3541 | /* Make this a separate argument. */ | |
3542 | do_spec_1 (" ", 0, NULL_PTR); | |
3543 | } | |
3544 | } | |
3545 | if (!pl->require_machine_suffix) | |
3546 | { | |
3547 | if (is_directory (pl->prefix, multilib_dir, 1)) | |
3548 | { | |
3549 | do_spec_1 ("-L", 0, NULL_PTR); | |
3550 | #ifdef SPACE_AFTER_L_OPTION | |
3551 | do_spec_1 (" ", 0, NULL_PTR); | |
3552 | #endif | |
3553 | do_spec_1 (pl->prefix, 1, NULL_PTR); | |
3554 | do_spec_1 (multilib_dir, 1, NULL_PTR); | |
3555 | /* Make this a separate argument. */ | |
3556 | do_spec_1 (" ", 0, NULL_PTR); | |
3557 | } | |
3558 | } | |
3559 | } | |
3560 | if (machine_suffix) | |
3561 | { | |
3562 | if (is_directory (pl->prefix, machine_suffix, 1)) | |
3563 | { | |
3564 | do_spec_1 ("-L", 0, NULL_PTR); | |
3565 | #ifdef SPACE_AFTER_L_OPTION | |
3566 | do_spec_1 (" ", 0, NULL_PTR); | |
3567 | #endif | |
3568 | do_spec_1 (pl->prefix, 1, NULL_PTR); | |
3569 | /* Remove slash from machine_suffix. */ | |
3570 | if (strlen (machine_suffix) >= bufsize) | |
3571 | bufsize = strlen (machine_suffix) * 2 + 1; | |
3572 | buffer = (char *) xrealloc (buffer, bufsize); | |
3573 | strcpy (buffer, machine_suffix); | |
3574 | idx = strlen (buffer); | |
3575 | if (buffer[idx - 1] == '/' | |
3576 | || buffer[idx - 1] == DIR_SEPARATOR) | |
3577 | buffer[idx - 1] = 0; | |
3578 | do_spec_1 (buffer, 1, NULL_PTR); | |
3579 | /* Make this a separate argument. */ | |
3580 | do_spec_1 (" ", 0, NULL_PTR); | |
3581 | } | |
3582 | } | |
3583 | if (!pl->require_machine_suffix) | |
3584 | { | |
3585 | if (is_directory (pl->prefix, "", 1)) | |
3586 | { | |
3587 | do_spec_1 ("-L", 0, NULL_PTR); | |
3588 | #ifdef SPACE_AFTER_L_OPTION | |
3589 | do_spec_1 (" ", 0, NULL_PTR); | |
3590 | #endif | |
3591 | /* Remove slash from pl->prefix. */ | |
3592 | if (strlen (pl->prefix) >= bufsize) | |
3593 | bufsize = strlen (pl->prefix) * 2 + 1; | |
3594 | buffer = (char *) xrealloc (buffer, bufsize); | |
3595 | strcpy (buffer, pl->prefix); | |
3596 | idx = strlen (buffer); | |
3597 | if (buffer[idx - 1] == '/' | |
3598 | || buffer[idx - 1] == DIR_SEPARATOR) | |
3599 | buffer[idx - 1] = 0; | |
3600 | do_spec_1 (buffer, 1, NULL_PTR); | |
3601 | /* Make this a separate argument. */ | |
3602 | do_spec_1 (" ", 0, NULL_PTR); | |
3603 | } | |
3604 | } | |
3605 | } | |
3606 | free (buffer); | |
3607 | } | |
3608 | break; | |
3609 | ||
3610 | case 'e': | |
3611 | /* {...:%efoo} means report an error with `foo' as error message | |
3612 | and don't execute any more commands for this file. */ | |
3613 | { | |
3614 | char *q = p; | |
3615 | char *buf; | |
3616 | while (*p != 0 && *p != '\n') p++; | |
3617 | buf = (char *) alloca (p - q + 1); | |
3618 | strncpy (buf, q, p - q); | |
3619 | buf[p - q] = 0; | |
3620 | error ("%s", buf); | |
3621 | return -1; | |
3622 | } | |
3623 | break; | |
3624 | ||
3625 | case 'g': | |
3626 | case 'u': | |
3627 | case 'U': | |
3628 | if (save_temps_flag) | |
3629 | { | |
3630 | obstack_grow (&obstack, input_basename, basename_length); | |
3631 | delete_this_arg = 0; | |
3632 | } | |
3633 | else | |
3634 | { | |
3635 | #ifdef MKTEMP_EACH_FILE | |
3636 | /* ??? This has a problem: the total number of | |
3637 | values mktemp can return is limited. | |
3638 | That matters for the names of object files. | |
3639 | In 2.4, do something about that. */ | |
3640 | struct temp_name *t; | |
3641 | int suffix_length; | |
3642 | char *suffix = p; | |
3643 | ||
3644 | if (p[0] == '%' && p[1] == 'O') | |
3645 | { | |
3646 | /* We don't support extra suffix characters after %O. */ | |
3647 | if (*p == '.' || ISALPHA (*p)) | |
3648 | abort (); | |
3649 | suffix = OBJECT_SUFFIX; | |
3650 | suffix_length = strlen (OBJECT_SUFFIX); | |
3651 | p += 2; | |
3652 | } | |
3653 | else | |
3654 | { | |
3655 | while (*p == '.' || ISALPHA (*p)) | |
3656 | p++; | |
3657 | suffix_length = p - suffix; | |
3658 | } | |
3659 | ||
3660 | /* See if we already have an association of %g/%u/%U and | |
3661 | suffix. */ | |
3662 | for (t = temp_names; t; t = t->next) | |
3663 | if (t->length == suffix_length | |
3664 | && strncmp (t->suffix, suffix, suffix_length) == 0 | |
3665 | && t->unique == (c != 'g')) | |
3666 | break; | |
3667 | ||
3668 | /* Make a new association if needed. %u requires one. */ | |
3669 | if (t == 0 || c == 'u') | |
3670 | { | |
3671 | if (t == 0) | |
3672 | { | |
3673 | t = (struct temp_name *) xmalloc (sizeof (struct temp_name)); | |
3674 | t->next = temp_names; | |
3675 | temp_names = t; | |
3676 | } | |
3677 | t->length = suffix_length; | |
3678 | t->suffix = save_string (suffix, suffix_length); | |
3679 | t->unique = (c != 'g'); | |
3680 | temp_filename = make_temp_file (t->suffix); | |
3681 | temp_filename_length = strlen (temp_filename); | |
3682 | t->filename = temp_filename; | |
3683 | t->filename_length = temp_filename_length; | |
3684 | } | |
3685 | ||
3686 | obstack_grow (&obstack, t->filename, t->filename_length); | |
3687 | delete_this_arg = 1; | |
3688 | #else | |
3689 | obstack_grow (&obstack, temp_filename, temp_filename_length); | |
3690 | if (c == 'u' || c == 'U') | |
3691 | { | |
3692 | static int unique; | |
3693 | char buff[9]; | |
3694 | if (c == 'u') | |
3695 | unique++; | |
3696 | sprintf (buff, "%d", unique); | |
3697 | obstack_grow (&obstack, buff, strlen (buff)); | |
3698 | } | |
3699 | #endif | |
3700 | delete_this_arg = 1; | |
3701 | } | |
3702 | arg_going = 1; | |
3703 | break; | |
3704 | ||
3705 | case 'i': | |
3706 | obstack_grow (&obstack, input_filename, input_filename_length); | |
3707 | arg_going = 1; | |
3708 | break; | |
3709 | ||
3710 | case 'I': | |
3711 | { | |
3712 | struct prefix_list *pl = include_prefixes.plist; | |
3713 | ||
3714 | if (gcc_exec_prefix) | |
3715 | { | |
3716 | do_spec_1 ("-iprefix", 1, NULL_PTR); | |
3717 | /* Make this a separate argument. */ | |
3718 | do_spec_1 (" ", 0, NULL_PTR); | |
3719 | do_spec_1 (gcc_exec_prefix, 1, NULL_PTR); | |
3720 | do_spec_1 (" ", 0, NULL_PTR); | |
3721 | } | |
3722 | ||
3723 | for (; pl; pl = pl->next) | |
3724 | { | |
3725 | do_spec_1 ("-isystem", 1, NULL_PTR); | |
3726 | /* Make this a separate argument. */ | |
3727 | do_spec_1 (" ", 0, NULL_PTR); | |
3728 | do_spec_1 (pl->prefix, 1, NULL_PTR); | |
3729 | do_spec_1 (" ", 0, NULL_PTR); | |
3730 | } | |
3731 | } | |
3732 | break; | |
3733 | ||
3734 | case 'o': | |
3735 | { | |
3736 | int max = n_infiles; | |
3737 | #ifdef LANG_SPECIFIC_DRIVER | |
3738 | max += lang_specific_extra_outfiles; | |
3739 | #endif | |
3740 | for (i = 0; i < max; i++) | |
3741 | if (outfiles[i]) | |
3742 | store_arg (outfiles[i], 0, 0); | |
3743 | break; | |
3744 | } | |
3745 | ||
3746 | case 'O': | |
3747 | obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX)); | |
3748 | arg_going = 1; | |
3749 | break; | |
3750 | ||
3751 | case 's': | |
3752 | this_is_library_file = 1; | |
3753 | break; | |
3754 | ||
3755 | case 'w': | |
3756 | this_is_output_file = 1; | |
3757 | break; | |
3758 | ||
3759 | case 'W': | |
3760 | { | |
3761 | int cur_index = argbuf_index; | |
3762 | /* Handle the {...} following the %W. */ | |
3763 | if (*p != '{') | |
3764 | abort (); | |
3765 | p = handle_braces (p + 1); | |
3766 | if (p == 0) | |
3767 | return -1; | |
3768 | /* If any args were output, mark the last one for deletion | |
3769 | on failure. */ | |
3770 | if (argbuf_index != cur_index) | |
3771 | record_temp_file (argbuf[argbuf_index - 1], 0, 1); | |
3772 | break; | |
3773 | } | |
3774 | ||
3775 | /* %x{OPTION} records OPTION for %X to output. */ | |
3776 | case 'x': | |
3777 | { | |
3778 | char *p1 = p; | |
3779 | char *string; | |
3780 | ||
3781 | /* Skip past the option value and make a copy. */ | |
3782 | if (*p != '{') | |
3783 | abort (); | |
3784 | while (*p++ != '}') | |
3785 | ; | |
3786 | string = save_string (p1 + 1, p - p1 - 2); | |
3787 | ||
3788 | /* See if we already recorded this option. */ | |
3789 | for (i = 0; i < n_linker_options; i++) | |
3790 | if (! strcmp (string, linker_options[i])) | |
3791 | { | |
3792 | free (string); | |
3793 | return 0; | |
3794 | } | |
3795 | ||
3796 | /* This option is new; add it. */ | |
3797 | add_linker_option (string, strlen (string)); | |
3798 | } | |
3799 | break; | |
3800 | ||
3801 | /* Dump out the options accumulated previously using %x. */ | |
3802 | case 'X': | |
3803 | for (i = 0; i < n_linker_options; i++) | |
3804 | { | |
3805 | do_spec_1 (linker_options[i], 1, NULL_PTR); | |
3806 | /* Make each accumulated option a separate argument. */ | |
3807 | do_spec_1 (" ", 0, NULL_PTR); | |
3808 | } | |
3809 | break; | |
3810 | ||
3811 | /* Dump out the options accumulated previously using -Wa,. */ | |
3812 | case 'Y': | |
3813 | for (i = 0; i < n_assembler_options; i++) | |
3814 | { | |
3815 | do_spec_1 (assembler_options[i], 1, NULL_PTR); | |
3816 | /* Make each accumulated option a separate argument. */ | |
3817 | do_spec_1 (" ", 0, NULL_PTR); | |
3818 | } | |
3819 | break; | |
3820 | ||
3821 | /* Dump out the options accumulated previously using -Wp,. */ | |
3822 | case 'Z': | |
3823 | for (i = 0; i < n_preprocessor_options; i++) | |
3824 | { | |
3825 | do_spec_1 (preprocessor_options[i], 1, NULL_PTR); | |
3826 | /* Make each accumulated option a separate argument. */ | |
3827 | do_spec_1 (" ", 0, NULL_PTR); | |
3828 | } | |
3829 | break; | |
3830 | ||
3831 | /* Here are digits and numbers that just process | |
3832 | a certain constant string as a spec. */ | |
3833 | ||
3834 | case '1': | |
3835 | value = do_spec_1 (cc1_spec, 0, NULL_PTR); | |
3836 | if (value != 0) | |
3837 | return value; | |
3838 | break; | |
3839 | ||
3840 | case '2': | |
3841 | value = do_spec_1 (cc1plus_spec, 0, NULL_PTR); | |
3842 | if (value != 0) | |
3843 | return value; | |
3844 | break; | |
3845 | ||
3846 | case 'a': | |
3847 | value = do_spec_1 (asm_spec, 0, NULL_PTR); | |
3848 | if (value != 0) | |
3849 | return value; | |
3850 | break; | |
3851 | ||
3852 | case 'A': | |
3853 | value = do_spec_1 (asm_final_spec, 0, NULL_PTR); | |
3854 | if (value != 0) | |
3855 | return value; | |
3856 | break; | |
3857 | ||
3858 | case 'c': | |
3859 | value = do_spec_1 (signed_char_spec, 0, NULL_PTR); | |
3860 | if (value != 0) | |
3861 | return value; | |
3862 | break; | |
3863 | ||
3864 | case 'C': | |
3865 | value = do_spec_1 (cpp_spec, 0, NULL_PTR); | |
3866 | if (value != 0) | |
3867 | return value; | |
3868 | break; | |
3869 | ||
3870 | case 'E': | |
3871 | value = do_spec_1 (endfile_spec, 0, NULL_PTR); | |
3872 | if (value != 0) | |
3873 | return value; | |
3874 | break; | |
3875 | ||
3876 | case 'l': | |
3877 | value = do_spec_1 (link_spec, 0, NULL_PTR); | |
3878 | if (value != 0) | |
3879 | return value; | |
3880 | break; | |
3881 | ||
3882 | case 'L': | |
3883 | value = do_spec_1 (lib_spec, 0, NULL_PTR); | |
3884 | if (value != 0) | |
3885 | return value; | |
3886 | break; | |
3887 | ||
3888 | case 'G': | |
3889 | value = do_spec_1 (libgcc_spec, 0, NULL_PTR); | |
3890 | if (value != 0) | |
3891 | return value; | |
3892 | break; | |
3893 | ||
3894 | case 'p': | |
3895 | { | |
3896 | char *x = (char *) alloca (strlen (cpp_predefines) + 1); | |
3897 | char *buf = x; | |
3898 | char *y; | |
3899 | ||
3900 | /* Copy all of the -D options in CPP_PREDEFINES into BUF. */ | |
3901 | y = cpp_predefines; | |
3902 | while (*y != 0) | |
3903 | { | |
3904 | if (! strncmp (y, "-D", 2)) | |
3905 | /* Copy the whole option. */ | |
3906 | while (*y && *y != ' ' && *y != '\t') | |
3907 | *x++ = *y++; | |
3908 | else if (*y == ' ' || *y == '\t') | |
3909 | /* Copy whitespace to the result. */ | |
3910 | *x++ = *y++; | |
3911 | /* Don't copy other options. */ | |
3912 | else | |
3913 | y++; | |
3914 | } | |
3915 | ||
3916 | *x = 0; | |
3917 | ||
3918 | value = do_spec_1 (buf, 0, NULL_PTR); | |
3919 | if (value != 0) | |
3920 | return value; | |
3921 | } | |
3922 | break; | |
3923 | ||
3924 | case 'P': | |
3925 | { | |
3926 | char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1); | |
3927 | char *buf = x; | |
3928 | char *y; | |
3929 | ||
3930 | /* Copy all of CPP_PREDEFINES into BUF, | |
3931 | but put __ after every -D and at the end of each arg. */ | |
3932 | y = cpp_predefines; | |
3933 | while (*y != 0) | |
3934 | { | |
3935 | if (! strncmp (y, "-D", 2)) | |
3936 | { | |
3937 | int flag = 0; | |
3938 | ||
3939 | *x++ = *y++; | |
3940 | *x++ = *y++; | |
3941 | ||
3942 | if (*y != '_' | |
3943 | || (*(y+1) != '_' && ! ISUPPER (*(y+1)))) | |
3944 | { | |
3945 | /* Stick __ at front of macro name. */ | |
3946 | *x++ = '_'; | |
3947 | *x++ = '_'; | |
3948 | /* Arrange to stick __ at the end as well. */ | |
3949 | flag = 1; | |
3950 | } | |
3951 | ||
3952 | /* Copy the macro name. */ | |
3953 | while (*y && *y != '=' && *y != ' ' && *y != '\t') | |
3954 | *x++ = *y++; | |
3955 | ||
3956 | if (flag) | |
3957 | { | |
3958 | *x++ = '_'; | |
3959 | *x++ = '_'; | |
3960 | } | |
3961 | ||
3962 | /* Copy the value given, if any. */ | |
3963 | while (*y && *y != ' ' && *y != '\t') | |
3964 | *x++ = *y++; | |
3965 | } | |
3966 | else if (*y == ' ' || *y == '\t') | |
3967 | /* Copy whitespace to the result. */ | |
3968 | *x++ = *y++; | |
3969 | /* Don't copy -A options */ | |
3970 | else | |
3971 | y++; | |
3972 | } | |
3973 | *x++ = ' '; | |
3974 | ||
3975 | /* Copy all of CPP_PREDEFINES into BUF, | |
3976 | but put __ after every -D. */ | |
3977 | y = cpp_predefines; | |
3978 | while (*y != 0) | |
3979 | { | |
3980 | if (! strncmp (y, "-D", 2)) | |
3981 | { | |
3982 | y += 2; | |
3983 | ||
3984 | if (*y != '_' | |
3985 | || (*(y+1) != '_' && ! ISUPPER (*(y+1)))) | |
3986 | { | |
3987 | /* Stick -D__ at front of macro name. */ | |
3988 | *x++ = '-'; | |
3989 | *x++ = 'D'; | |
3990 | *x++ = '_'; | |
3991 | *x++ = '_'; | |
3992 | ||
3993 | /* Copy the macro name. */ | |
3994 | while (*y && *y != '=' && *y != ' ' && *y != '\t') | |
3995 | *x++ = *y++; | |
3996 | ||
3997 | /* Copy the value given, if any. */ | |
3998 | while (*y && *y != ' ' && *y != '\t') | |
3999 | *x++ = *y++; | |
4000 | } | |
4001 | else | |
4002 | { | |
4003 | /* Do not copy this macro - we have just done it before */ | |
4004 | while (*y && *y != ' ' && *y != '\t') | |
4005 | y++; | |
4006 | } | |
4007 | } | |
4008 | else if (*y == ' ' || *y == '\t') | |
4009 | /* Copy whitespace to the result. */ | |
4010 | *x++ = *y++; | |
4011 | /* Don't copy -A options */ | |
4012 | else | |
4013 | y++; | |
4014 | } | |
4015 | *x++ = ' '; | |
4016 | ||
4017 | /* Copy all of the -A options in CPP_PREDEFINES into BUF. */ | |
4018 | y = cpp_predefines; | |
4019 | while (*y != 0) | |
4020 | { | |
4021 | if (! strncmp (y, "-A", 2)) | |
4022 | /* Copy the whole option. */ | |
4023 | while (*y && *y != ' ' && *y != '\t') | |
4024 | *x++ = *y++; | |
4025 | else if (*y == ' ' || *y == '\t') | |
4026 | /* Copy whitespace to the result. */ | |
4027 | *x++ = *y++; | |
4028 | /* Don't copy other options. */ | |
4029 | else | |
4030 | y++; | |
4031 | } | |
4032 | ||
4033 | *x = 0; | |
4034 | ||
4035 | value = do_spec_1 (buf, 0, NULL_PTR); | |
4036 | if (value != 0) | |
4037 | return value; | |
4038 | } | |
4039 | break; | |
4040 | ||
4041 | case 'S': | |
4042 | value = do_spec_1 (startfile_spec, 0, NULL_PTR); | |
4043 | if (value != 0) | |
4044 | return value; | |
4045 | break; | |
4046 | ||
4047 | /* Here we define characters other than letters and digits. */ | |
4048 | ||
4049 | case '{': | |
4050 | p = handle_braces (p); | |
4051 | if (p == 0) | |
4052 | return -1; | |
4053 | break; | |
4054 | ||
4055 | case '%': | |
4056 | obstack_1grow (&obstack, '%'); | |
4057 | break; | |
4058 | ||
4059 | case '*': | |
4060 | do_spec_1 (soft_matched_part, 1, NULL_PTR); | |
4061 | do_spec_1 (" ", 0, NULL_PTR); | |
4062 | break; | |
4063 | ||
4064 | /* Process a string found as the value of a spec given by name. | |
4065 | This feature allows individual machine descriptions | |
4066 | to add and use their own specs. | |
4067 | %[...] modifies -D options the way %P does; | |
4068 | %(...) uses the spec unmodified. */ | |
4069 | case '[': | |
4070 | error ("Warning: use of obsolete %%[ operator in specs"); | |
4071 | case '(': | |
4072 | { | |
4073 | char *name = p; | |
4074 | struct spec_list *sl; | |
4075 | int len; | |
4076 | ||
4077 | /* The string after the S/P is the name of a spec that is to be | |
4078 | processed. */ | |
4079 | while (*p && *p != ')' && *p != ']') | |
4080 | p++; | |
4081 | ||
4082 | /* See if it's in the list */ | |
4083 | for (len = p - name, sl = specs; sl; sl = sl->next) | |
4084 | if (sl->name_len == len && !strncmp (sl->name, name, len)) | |
4085 | { | |
4086 | name = *(sl->ptr_spec); | |
4087 | #ifdef DEBUG_SPECS | |
4088 | fprintf (stderr, "Processing spec %c%s%c, which is '%s'\n", | |
4089 | c, sl->name, (c == '(') ? ')' : ']', name); | |
4090 | #endif | |
4091 | break; | |
4092 | } | |
4093 | ||
4094 | if (sl) | |
4095 | { | |
4096 | if (c == '(') | |
4097 | { | |
4098 | value = do_spec_1 (name, 0, NULL_PTR); | |
4099 | if (value != 0) | |
4100 | return value; | |
4101 | } | |
4102 | else | |
4103 | { | |
4104 | char *x = (char *) alloca (strlen (name) * 2 + 1); | |
4105 | char *buf = x; | |
4106 | char *y = name; | |
4107 | int flag = 0; | |
4108 | ||
4109 | /* Copy all of NAME into BUF, but put __ after | |
4110 | every -D and at the end of each arg, */ | |
4111 | while (1) | |
4112 | { | |
4113 | if (! strncmp (y, "-D", 2)) | |
4114 | { | |
4115 | *x++ = '-'; | |
4116 | *x++ = 'D'; | |
4117 | *x++ = '_'; | |
4118 | *x++ = '_'; | |
4119 | y += 2; | |
4120 | flag = 1; | |
4121 | continue; | |
4122 | } | |
4123 | else if (flag && (*y == ' ' || *y == '\t' || *y == '=' | |
4124 | || *y == '}' || *y == 0)) | |
4125 | { | |
4126 | *x++ = '_'; | |
4127 | *x++ = '_'; | |
4128 | flag = 0; | |
4129 | } | |
4130 | if (*y == 0) | |
4131 | break; | |
4132 | else | |
4133 | *x++ = *y++; | |
4134 | } | |
4135 | *x = 0; | |
4136 | ||
4137 | value = do_spec_1 (buf, 0, NULL_PTR); | |
4138 | if (value != 0) | |
4139 | return value; | |
4140 | } | |
4141 | } | |
4142 | ||
4143 | /* Discard the closing paren or bracket. */ | |
4144 | if (*p) | |
4145 | p++; | |
4146 | } | |
4147 | break; | |
4148 | ||
4149 | case 'v': | |
4150 | { | |
4151 | int c1 = *p++; /* Select first or second version number. */ | |
4152 | char *v = compiler_version; | |
4153 | char *q; | |
4154 | ||
4155 | /* The format of the version string is | |
4156 | ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */ | |
4157 | ||
4158 | /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */ | |
4159 | while (! ISDIGIT (*v)) | |
4160 | v++; | |
4161 | if (v > compiler_version && v[-1] != '-') | |
4162 | abort (); | |
4163 | ||
4164 | /* If desired, advance to second version number. */ | |
4165 | if (c1 == '2') | |
4166 | { | |
4167 | /* Set V after the first period. */ | |
4168 | while (ISDIGIT (*v)) | |
4169 | v++; | |
4170 | if (*v != '.') | |
4171 | abort (); | |
4172 | v++; | |
4173 | } | |
4174 | ||
4175 | /* Set Q at the next period or at the end. */ | |
4176 | q = v; | |
4177 | while (ISDIGIT (*q)) | |
4178 | q++; | |
4179 | if (*q != 0 && *q != ' ' && *q != '.' && *q != '-') | |
4180 | abort (); | |
4181 | ||
4182 | /* Put that part into the command. */ | |
4183 | obstack_grow (&obstack, v, q - v); | |
4184 | arg_going = 1; | |
4185 | } | |
4186 | break; | |
4187 | ||
4188 | case '|': | |
4189 | if (input_from_pipe) | |
4190 | do_spec_1 ("-", 0, NULL_PTR); | |
4191 | break; | |
4192 | ||
4193 | default: | |
4194 | abort (); | |
4195 | } | |
4196 | break; | |
4197 | ||
4198 | case '\\': | |
4199 | /* Backslash: treat next character as ordinary. */ | |
4200 | c = *p++; | |
4201 | ||
4202 | /* fall through */ | |
4203 | default: | |
4204 | /* Ordinary character: put it into the current argument. */ | |
4205 | obstack_1grow (&obstack, c); | |
4206 | arg_going = 1; | |
4207 | } | |
4208 | ||
4209 | return 0; /* End of string */ | |
4210 | } | |
4211 | ||
4212 | /* Return 0 if we call do_spec_1 and that returns -1. */ | |
4213 | ||
4214 | static char * | |
4215 | handle_braces (p) | |
4216 | register char *p; | |
4217 | { | |
4218 | char *filter, *body = NULL, *endbody; | |
4219 | int pipe_p = 0; | |
4220 | int negate; | |
4221 | int suffix; | |
4222 | int include_blanks = 1; | |
4223 | ||
4224 | if (*p == '^') | |
4225 | /* A '^' after the open-brace means to not give blanks before args. */ | |
4226 | include_blanks = 0, ++p; | |
4227 | ||
4228 | if (*p == '|') | |
4229 | /* A `|' after the open-brace means, | |
4230 | if the test fails, output a single minus sign rather than nothing. | |
4231 | This is used in %{|!pipe:...}. */ | |
4232 | pipe_p = 1, ++p; | |
4233 | ||
4234 | next_member: | |
4235 | negate = suffix = 0; | |
4236 | ||
4237 | if (*p == '!') | |
4238 | /* A `!' after the open-brace negates the condition: | |
4239 | succeed if the specified switch is not present. */ | |
4240 | negate = 1, ++p; | |
4241 | ||
4242 | if (*p == '.') | |
4243 | /* A `.' after the open-brace means test against the current suffix. */ | |
4244 | { | |
4245 | if (pipe_p) | |
4246 | abort (); | |
4247 | ||
4248 | suffix = 1; | |
4249 | ++p; | |
4250 | } | |
4251 | ||
4252 | filter = p; | |
4253 | while (*p != ':' && *p != '}' && *p != '|') p++; | |
4254 | ||
4255 | if (*p == '|' && pipe_p) | |
4256 | abort (); | |
4257 | ||
4258 | if (!body) | |
4259 | { | |
4260 | if (*p != '}') | |
4261 | { | |
4262 | register int count = 1; | |
4263 | register char *q = p; | |
4264 | ||
4265 | while (*q++ != ':') continue; | |
4266 | body = q; | |
4267 | ||
4268 | while (count > 0) | |
4269 | { | |
4270 | if (*q == '{') | |
4271 | count++; | |
4272 | else if (*q == '}') | |
4273 | count--; | |
4274 | else if (*q == 0) | |
4275 | abort (); | |
4276 | q++; | |
4277 | } | |
4278 | endbody = q; | |
4279 | } | |
4280 | else | |
4281 | body = p, endbody = p+1; | |
4282 | } | |
4283 | ||
4284 | if (suffix) | |
4285 | { | |
4286 | int found = (input_suffix != 0 | |
4287 | && strlen (input_suffix) == p - filter | |
4288 | && strncmp (input_suffix, filter, p - filter) == 0); | |
4289 | ||
4290 | if (body[0] == '}') | |
4291 | abort (); | |
4292 | ||
4293 | if (negate != found | |
4294 | && do_spec_1 (save_string (body, endbody-body-1), 0, NULL_PTR) < 0) | |
4295 | return 0; | |
4296 | } | |
4297 | else if (p[-1] == '*' && p[0] == '}') | |
4298 | { | |
4299 | /* Substitute all matching switches as separate args. */ | |
4300 | register int i; | |
4301 | --p; | |
4302 | for (i = 0; i < n_switches; i++) | |
4303 | if (!strncmp (switches[i].part1, filter, p - filter) | |
4304 | && check_live_switch (i, p - filter)) | |
4305 | give_switch (i, 0, include_blanks); | |
4306 | } | |
4307 | else | |
4308 | { | |
4309 | /* Test for presence of the specified switch. */ | |
4310 | register int i; | |
4311 | int present = 0; | |
4312 | ||
4313 | /* If name specified ends in *, as in {x*:...}, | |
4314 | check for %* and handle that case. */ | |
4315 | if (p[-1] == '*' && !negate) | |
4316 | { | |
4317 | int substitution; | |
4318 | char *r = body; | |
4319 | ||
4320 | /* First see whether we have %*. */ | |
4321 | substitution = 0; | |
4322 | while (r < endbody) | |
4323 | { | |
4324 | if (*r == '%' && r[1] == '*') | |
4325 | substitution = 1; | |
4326 | r++; | |
4327 | } | |
4328 | /* If we do, handle that case. */ | |
4329 | if (substitution) | |
4330 | { | |
4331 | /* Substitute all matching switches as separate args. | |
4332 | But do this by substituting for %* | |
4333 | in the text that follows the colon. */ | |
4334 | ||
4335 | unsigned hard_match_len = p - filter - 1; | |
4336 | char *string = save_string (body, endbody - body - 1); | |
4337 | ||
4338 | for (i = 0; i < n_switches; i++) | |
4339 | if (!strncmp (switches[i].part1, filter, hard_match_len) | |
4340 | && check_live_switch (i, -1)) | |
4341 | { | |
4342 | do_spec_1 (string, 0, &switches[i].part1[hard_match_len]); | |
4343 | /* Pass any arguments this switch has. */ | |
4344 | give_switch (i, 1, 1); | |
4345 | } | |
4346 | ||
4347 | /* We didn't match. Try again. */ | |
4348 | if (*p++ == '|') | |
4349 | goto next_member; | |
4350 | return endbody; | |
4351 | } | |
4352 | } | |
4353 | ||
4354 | /* If name specified ends in *, as in {x*:...}, | |
4355 | check for presence of any switch name starting with x. */ | |
4356 | if (p[-1] == '*') | |
4357 | { | |
4358 | for (i = 0; i < n_switches; i++) | |
4359 | { | |
4360 | unsigned hard_match_len = p - filter - 1; | |
4361 | ||
4362 | if (!strncmp (switches[i].part1, filter, hard_match_len) | |
4363 | && check_live_switch (i, hard_match_len)) | |
4364 | { | |
4365 | present = 1; | |
4366 | } | |
4367 | } | |
4368 | } | |
4369 | /* Otherwise, check for presence of exact name specified. */ | |
4370 | else | |
4371 | { | |
4372 | for (i = 0; i < n_switches; i++) | |
4373 | { | |
4374 | if (!strncmp (switches[i].part1, filter, p - filter) | |
4375 | && switches[i].part1[p - filter] == 0 | |
4376 | && check_live_switch (i, -1)) | |
4377 | { | |
4378 | present = 1; | |
4379 | break; | |
4380 | } | |
4381 | } | |
4382 | } | |
4383 | ||
4384 | /* If it is as desired (present for %{s...}, absent for %{!s...}) | |
4385 | then substitute either the switch or the specified | |
4386 | conditional text. */ | |
4387 | if (present != negate) | |
4388 | { | |
4389 | if (*p == '}') | |
4390 | { | |
4391 | give_switch (i, 0, include_blanks); | |
4392 | } | |
4393 | else | |
4394 | { | |
4395 | if (do_spec_1 (save_string (body, endbody - body - 1), | |
4396 | 0, NULL_PTR) < 0) | |
4397 | return 0; | |
4398 | } | |
4399 | } | |
4400 | else if (pipe_p) | |
4401 | { | |
4402 | /* Here if a %{|...} conditional fails: output a minus sign, | |
4403 | which means "standard output" or "standard input". */ | |
4404 | do_spec_1 ("-", 0, NULL_PTR); | |
4405 | return endbody; | |
4406 | } | |
4407 | } | |
4408 | ||
4409 | /* We didn't match; try again. */ | |
4410 | if (*p++ == '|') | |
4411 | goto next_member; | |
4412 | ||
4413 | return endbody; | |
4414 | } | |
4415 | \f | |
4416 | /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch | |
4417 | on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*} | |
4418 | spec, or -1 if either exact match or %* is used. | |
4419 | ||
4420 | A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch | |
4421 | whose value does not begin with "no-" is obsoleted by the same value | |
4422 | with the "no-", similarly for a switch with the "no-" prefix. */ | |
4423 | ||
4424 | static int | |
4425 | check_live_switch (switchnum, prefix_length) | |
4426 | int switchnum; | |
4427 | int prefix_length; | |
4428 | { | |
4429 | char *name = switches[switchnum].part1; | |
4430 | int i; | |
4431 | ||
4432 | /* In the common case of {<at-most-one-letter>*}, a negating | |
4433 | switch would always match, so ignore that case. We will just | |
4434 | send the conflicting switches to the compiler phase. */ | |
4435 | if (prefix_length >= 0 && prefix_length <= 1) | |
4436 | return 1; | |
4437 | ||
4438 | /* If we already processed this switch and determined if it was | |
4439 | live or not, return our past determination. */ | |
4440 | if (switches[switchnum].live_cond != 0) | |
4441 | return switches[switchnum].live_cond > 0; | |
4442 | ||
4443 | /* Now search for duplicate in a manner that depends on the name. */ | |
4444 | switch (*name) | |
4445 | { | |
4446 | case 'O': | |
4447 | for (i = switchnum + 1; i < n_switches; i++) | |
4448 | if (switches[i].part1[0] == 'O') | |
4449 | { | |
4450 | switches[switchnum].valid = 1; | |
4451 | switches[switchnum].live_cond = -1; | |
4452 | return 0; | |
4453 | } | |
4454 | break; | |
4455 | ||
4456 | case 'W': case 'f': case 'm': | |
4457 | if (! strncmp (name + 1, "no-", 3)) | |
4458 | { | |
4459 | /* We have Xno-YYY, search for XYYY. */ | |
4460 | for (i = switchnum + 1; i < n_switches; i++) | |
4461 | if (switches[i].part1[0] == name[0] | |
4462 | && ! strcmp (&switches[i].part1[1], &name[4])) | |
4463 | { | |
4464 | switches[switchnum].valid = 1; | |
4465 | switches[switchnum].live_cond = -1; | |
4466 | return 0; | |
4467 | } | |
4468 | } | |
4469 | else | |
4470 | { | |
4471 | /* We have XYYY, search for Xno-YYY. */ | |
4472 | for (i = switchnum + 1; i < n_switches; i++) | |
4473 | if (switches[i].part1[0] == name[0] | |
4474 | && switches[i].part1[1] == 'n' | |
4475 | && switches[i].part1[2] == 'o' | |
4476 | && switches[i].part1[3] == '-' | |
4477 | && !strcmp (&switches[i].part1[4], &name[1])) | |
4478 | { | |
4479 | switches[switchnum].valid = 1; | |
4480 | switches[switchnum].live_cond = -1; | |
4481 | return 0; | |
4482 | } | |
4483 | } | |
4484 | break; | |
4485 | } | |
4486 | ||
4487 | /* Otherwise the switch is live. */ | |
4488 | switches[switchnum].live_cond = 1; | |
4489 | return 1; | |
4490 | } | |
4491 | \f | |
4492 | /* Pass a switch to the current accumulating command | |
4493 | in the same form that we received it. | |
4494 | SWITCHNUM identifies the switch; it is an index into | |
4495 | the vector of switches gcc received, which is `switches'. | |
4496 | This cannot fail since it never finishes a command line. | |
4497 | ||
4498 | If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. | |
4499 | ||
4500 | If INCLUDE_BLANKS is nonzero, then we include blanks before each argument | |
4501 | of the switch. */ | |
4502 | ||
4503 | static void | |
4504 | give_switch (switchnum, omit_first_word, include_blanks) | |
4505 | int switchnum; | |
4506 | int omit_first_word; | |
4507 | int include_blanks; | |
4508 | { | |
4509 | if (!omit_first_word) | |
4510 | { | |
4511 | do_spec_1 ("-", 0, NULL_PTR); | |
4512 | do_spec_1 (switches[switchnum].part1, 1, NULL_PTR); | |
4513 | } | |
4514 | ||
4515 | if (switches[switchnum].args != 0) | |
4516 | { | |
4517 | char **p; | |
4518 | for (p = switches[switchnum].args; *p; p++) | |
4519 | { | |
4520 | if (include_blanks) | |
4521 | do_spec_1 (" ", 0, NULL_PTR); | |
4522 | do_spec_1 (*p, 1, NULL_PTR); | |
4523 | } | |
4524 | } | |
4525 | ||
4526 | do_spec_1 (" ", 0, NULL_PTR); | |
4527 | switches[switchnum].valid = 1; | |
4528 | } | |
4529 | \f | |
4530 | /* Search for a file named NAME trying various prefixes including the | |
4531 | user's -B prefix and some standard ones. | |
4532 | Return the absolute file name found. If nothing is found, return NAME. */ | |
4533 | ||
4534 | static char * | |
4535 | find_file (name) | |
4536 | char *name; | |
4537 | { | |
4538 | char *newname; | |
4539 | ||
4540 | /* Try multilib_dir if it is defined. */ | |
4541 | if (multilib_dir != NULL) | |
4542 | { | |
4543 | char *try; | |
4544 | ||
4545 | try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2); | |
4546 | strcpy (try, multilib_dir); | |
4547 | strcat (try, dir_separator_str); | |
4548 | strcat (try, name); | |
4549 | ||
4550 | newname = find_a_file (&startfile_prefixes, try, R_OK); | |
4551 | ||
4552 | /* If we don't find it in the multi library dir, then fall | |
4553 | through and look for it in the normal places. */ | |
4554 | if (newname != NULL) | |
4555 | return newname; | |
4556 | } | |
4557 | ||
4558 | newname = find_a_file (&startfile_prefixes, name, R_OK); | |
4559 | return newname ? newname : name; | |
4560 | } | |
4561 | ||
4562 | /* Determine whether a directory exists. If LINKER, return 0 for | |
4563 | certain fixed names not needed by the linker. If not LINKER, it is | |
4564 | only important to return 0 if the host machine has a small ARG_MAX | |
4565 | limit. */ | |
4566 | ||
4567 | static int | |
4568 | is_directory (path1, path2, linker) | |
4569 | char *path1; | |
4570 | char *path2; | |
4571 | int linker; | |
4572 | { | |
4573 | int len1 = strlen (path1); | |
4574 | int len2 = strlen (path2); | |
4575 | char *path = (char *) alloca (3 + len1 + len2); | |
4576 | char *cp; | |
4577 | struct stat st; | |
4578 | ||
4579 | #ifndef SMALL_ARG_MAX | |
4580 | if (! linker) | |
4581 | return 1; | |
4582 | #endif | |
4583 | ||
4584 | /* Construct the path from the two parts. Ensure the string ends with "/.". | |
4585 | The resulting path will be a directory even if the given path is a | |
4586 | symbolic link. */ | |
4587 | memcpy (path, path1, len1); | |
4588 | memcpy (path + len1, path2, len2); | |
4589 | cp = path + len1 + len2; | |
4590 | if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR) | |
4591 | *cp++ = DIR_SEPARATOR; | |
4592 | *cp++ = '.'; | |
4593 | *cp = '\0'; | |
4594 | ||
4595 | /* Exclude directories that the linker is known to search. */ | |
4596 | if (linker | |
4597 | && ((cp - path == 6 | |
4598 | && strcmp (path, concat (dir_separator_str, "lib", | |
4599 | dir_separator_str, ".", NULL_PTR)) == 0) | |
4600 | || (cp - path == 10 | |
4601 | && strcmp (path, concat (dir_separator_str, "usr", | |
4602 | dir_separator_str, "lib", | |
4603 | dir_separator_str, ".", NULL_PTR)) == 0))) | |
4604 | return 0; | |
4605 | ||
4606 | return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode)); | |
4607 | } | |
4608 | \f | |
4609 | /* On fatal signals, delete all the temporary files. */ | |
4610 | ||
4611 | static void | |
4612 | fatal_error (signum) | |
4613 | int signum; | |
4614 | { | |
4615 | signal (signum, SIG_DFL); | |
4616 | delete_failure_queue (); | |
4617 | delete_temp_files (); | |
4618 | /* Get the same signal again, this time not handled, | |
4619 | so its normal effect occurs. */ | |
4620 | kill (getpid (), signum); | |
4621 | } | |
4622 | ||
4623 | int | |
4624 | main (argc, argv) | |
4625 | int argc; | |
4626 | char **argv; | |
4627 | { | |
4628 | register size_t i; | |
4629 | size_t j; | |
4630 | int value; | |
4631 | int linker_was_run = 0; | |
4632 | char *explicit_link_files; | |
4633 | char *specs_file; | |
4634 | char *p; | |
4635 | struct user_specs *uptr; | |
4636 | ||
4637 | p = argv[0] + strlen (argv[0]); | |
4638 | while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p; | |
4639 | programname = p; | |
4640 | ||
4641 | if (signal (SIGINT, SIG_IGN) != SIG_IGN) | |
4642 | signal (SIGINT, fatal_error); | |
4643 | #ifdef SIGHUP | |
4644 | if (signal (SIGHUP, SIG_IGN) != SIG_IGN) | |
4645 | signal (SIGHUP, fatal_error); | |
4646 | #endif | |
4647 | if (signal (SIGTERM, SIG_IGN) != SIG_IGN) | |
4648 | signal (SIGTERM, fatal_error); | |
4649 | #ifdef SIGPIPE | |
4650 | if (signal (SIGPIPE, SIG_IGN) != SIG_IGN) | |
4651 | signal (SIGPIPE, fatal_error); | |
4652 | #endif | |
4653 | ||
4654 | argbuf_length = 10; | |
4655 | argbuf = (char **) xmalloc (argbuf_length * sizeof (char *)); | |
4656 | ||
4657 | obstack_init (&obstack); | |
4658 | ||
4659 | /* Build multilib_select, et. al from the separate lines that make up each | |
4660 | multilib selection. */ | |
4661 | { | |
4662 | char **q = multilib_raw; | |
4663 | int need_space; | |
4664 | ||
4665 | obstack_init (&multilib_obstack); | |
4666 | while ((p = *q++) != (char *) 0) | |
4667 | obstack_grow (&multilib_obstack, p, strlen (p)); | |
4668 | ||
4669 | obstack_1grow (&multilib_obstack, 0); | |
4670 | multilib_select = obstack_finish (&multilib_obstack); | |
4671 | ||
4672 | q = multilib_matches_raw; | |
4673 | while ((p = *q++) != (char *) 0) | |
4674 | obstack_grow (&multilib_obstack, p, strlen (p)); | |
4675 | ||
4676 | obstack_1grow (&multilib_obstack, 0); | |
4677 | multilib_matches = obstack_finish (&multilib_obstack); | |
4678 | ||
4679 | need_space = FALSE; | |
4680 | for (i = 0; | |
4681 | i < sizeof (multilib_defaults_raw) / sizeof (multilib_defaults_raw[0]); | |
4682 | i++) | |
4683 | { | |
4684 | if (need_space) | |
4685 | obstack_1grow (&multilib_obstack, ' '); | |
4686 | obstack_grow (&multilib_obstack, | |
4687 | multilib_defaults_raw[i], | |
4688 | strlen (multilib_defaults_raw[i])); | |
4689 | need_space = TRUE; | |
4690 | } | |
4691 | ||
4692 | obstack_1grow (&multilib_obstack, 0); | |
4693 | multilib_defaults = obstack_finish (&multilib_obstack); | |
4694 | } | |
4695 | ||
4696 | /* Set up to remember the pathname of gcc and any options | |
4697 | needed for collect. We use argv[0] instead of programname because | |
4698 | we need the complete pathname. */ | |
4699 | obstack_init (&collect_obstack); | |
4700 | obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1); | |
4701 | obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1); | |
4702 | putenv (obstack_finish (&collect_obstack)); | |
4703 | ||
4704 | #ifdef INIT_ENVIRONMENT | |
4705 | /* Set up any other necessary machine specific environment variables. */ | |
4706 | putenv (INIT_ENVIRONMENT); | |
4707 | #endif | |
4708 | ||
4709 | /* Choose directory for temp files. */ | |
4710 | ||
4711 | #ifndef MKTEMP_EACH_FILE | |
4712 | temp_filename = choose_temp_base (); | |
4713 | temp_filename_length = strlen (temp_filename); | |
4714 | #endif | |
4715 | ||
4716 | /* Make a table of what switches there are (switches, n_switches). | |
4717 | Make a table of specified input files (infiles, n_infiles). | |
4718 | Decode switches that are handled locally. */ | |
4719 | ||
4720 | process_command (argc, argv); | |
4721 | ||
4722 | { | |
4723 | int first_time; | |
4724 | ||
4725 | /* Build COLLECT_GCC_OPTIONS to have all of the options specified to | |
4726 | the compiler. */ | |
4727 | obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=", | |
4728 | sizeof ("COLLECT_GCC_OPTIONS=")-1); | |
4729 | ||
4730 | first_time = TRUE; | |
4731 | for (i = 0; i < n_switches; i++) | |
4732 | { | |
4733 | char **args; | |
4734 | char *p, *q; | |
4735 | if (!first_time) | |
4736 | obstack_grow (&collect_obstack, " ", 1); | |
4737 | ||
4738 | first_time = FALSE; | |
4739 | obstack_grow (&collect_obstack, "'-", 2); | |
4740 | q = switches[i].part1; | |
4741 | while ((p = index (q,'\''))) | |
4742 | { | |
4743 | obstack_grow (&collect_obstack, q, p-q); | |
4744 | obstack_grow (&collect_obstack, "'\\''", 4); | |
4745 | q = ++p; | |
4746 | } | |
4747 | obstack_grow (&collect_obstack, q, strlen (q)); | |
4748 | obstack_grow (&collect_obstack, "'", 1); | |
4749 | ||
4750 | for (args = switches[i].args; args && *args; args++) | |
4751 | { | |
4752 | obstack_grow (&collect_obstack, " '", 2); | |
4753 | q = *args; | |
4754 | while ((p = index (q,'\''))) | |
4755 | { | |
4756 | obstack_grow (&collect_obstack, q, p-q); | |
4757 | obstack_grow (&collect_obstack, "'\\''", 4); | |
4758 | q = ++p; | |
4759 | } | |
4760 | obstack_grow (&collect_obstack, q, strlen (q)); | |
4761 | obstack_grow (&collect_obstack, "'", 1); | |
4762 | } | |
4763 | } | |
4764 | obstack_grow (&collect_obstack, "\0", 1); | |
4765 | putenv (obstack_finish (&collect_obstack)); | |
4766 | } | |
4767 | ||
4768 | /* Initialize the vector of specs to just the default. | |
4769 | This means one element containing 0s, as a terminator. */ | |
4770 | ||
4771 | compilers = (struct compiler *) xmalloc (sizeof default_compilers); | |
4772 | bcopy ((char *) default_compilers, (char *) compilers, | |
4773 | sizeof default_compilers); | |
4774 | n_compilers = n_default_compilers; | |
4775 | ||
4776 | /* Read specs from a file if there is one. */ | |
4777 | ||
4778 | machine_suffix = concat (spec_machine, dir_separator_str, | |
4779 | spec_version, dir_separator_str, NULL_PTR); | |
4780 | just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR); | |
4781 | ||
4782 | specs_file = find_a_file (&startfile_prefixes, "specs", R_OK); | |
4783 | /* Read the specs file unless it is a default one. */ | |
4784 | if (specs_file != 0 && strcmp (specs_file, "specs")) | |
4785 | read_specs (specs_file, TRUE); | |
4786 | else | |
4787 | init_spec (); | |
4788 | ||
4789 | /* We need to check standard_exec_prefix/just_machine_suffix/specs | |
4790 | for any override of as, ld and libraries. */ | |
4791 | specs_file = (char *) alloca (strlen (standard_exec_prefix) | |
4792 | + strlen (just_machine_suffix) | |
4793 | + sizeof ("specs")); | |
4794 | ||
4795 | strcpy (specs_file, standard_exec_prefix); | |
4796 | strcat (specs_file, just_machine_suffix); | |
4797 | strcat (specs_file, "specs"); | |
4798 | if (access (specs_file, R_OK) == 0) | |
4799 | read_specs (specs_file, TRUE); | |
4800 | ||
4801 | /* Process any user specified specs in the order given on the command | |
4802 | line. */ | |
4803 | for (uptr = user_specs_head; uptr; uptr = uptr->next) | |
4804 | { | |
4805 | char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK); | |
4806 | read_specs (filename ? filename : uptr->filename, FALSE); | |
4807 | } | |
4808 | ||
4809 | /* If not cross-compiling, look for startfiles in the standard places. */ | |
4810 | /* The fact that these are done here, after reading the specs file, | |
4811 | means that it cannot be found in these directories. | |
4812 | But that's okay. It should never be there anyway. */ | |
4813 | if (*cross_compile == '0') | |
4814 | { | |
4815 | #ifdef MD_EXEC_PREFIX | |
4816 | add_prefix (&exec_prefixes, md_exec_prefix, "GCC", 0, 0, NULL_PTR); | |
4817 | add_prefix (&startfile_prefixes, md_exec_prefix, "GCC", 0, 0, NULL_PTR); | |
4818 | #endif | |
4819 | ||
4820 | #ifdef MD_STARTFILE_PREFIX | |
4821 | add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC", | |
4822 | 0, 0, NULL_PTR); | |
4823 | #endif | |
4824 | ||
4825 | #ifdef MD_STARTFILE_PREFIX_1 | |
4826 | add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC", | |
4827 | 0, 0, NULL_PTR); | |
4828 | #endif | |
4829 | ||
4830 | /* If standard_startfile_prefix is relative, base it on | |
4831 | standard_exec_prefix. This lets us move the installed tree | |
4832 | as a unit. If GCC_EXEC_PREFIX is defined, base | |
4833 | standard_startfile_prefix on that as well. */ | |
4834 | if (*standard_startfile_prefix == '/' | |
4835 | || *standard_startfile_prefix == DIR_SEPARATOR | |
4836 | || *standard_startfile_prefix == '$' | |
4837 | #ifdef __MSDOS__ | |
4838 | /* Check for disk name on MS-DOS-based systems. */ | |
4839 | || (standard_startfile_prefix[1] == ':' | |
4840 | && (standard_startfile_prefix[2] == DIR_SEPARATOR | |
4841 | || standard_startfile_prefix[2] == '/')) | |
4842 | #endif | |
4843 | ) | |
4844 | add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS", | |
4845 | 0, 0, NULL_PTR); | |
4846 | else | |
4847 | { | |
4848 | if (gcc_exec_prefix) | |
4849 | add_prefix (&startfile_prefixes, | |
4850 | concat (gcc_exec_prefix, machine_suffix, | |
4851 | standard_startfile_prefix, NULL_PTR), | |
4852 | NULL_PTR, 0, 0, NULL_PTR); | |
4853 | add_prefix (&startfile_prefixes, | |
4854 | concat (standard_exec_prefix, | |
4855 | machine_suffix, | |
4856 | standard_startfile_prefix, NULL_PTR), | |
4857 | NULL_PTR, 0, 0, NULL_PTR); | |
4858 | } | |
4859 | ||
4860 | add_prefix (&startfile_prefixes, standard_startfile_prefix_1, | |
4861 | "BINUTILS", 0, 0, NULL_PTR); | |
4862 | add_prefix (&startfile_prefixes, standard_startfile_prefix_2, | |
4863 | "BINUTILS", 0, 0, NULL_PTR); | |
4864 | #if 0 /* Can cause surprises, and one can use -B./ instead. */ | |
4865 | add_prefix (&startfile_prefixes, "./", NULL_PTR, 0, 1, NULL_PTR); | |
4866 | #endif | |
4867 | } | |
4868 | else | |
4869 | { | |
4870 | if (*standard_startfile_prefix != DIR_SEPARATOR && gcc_exec_prefix) | |
4871 | add_prefix (&startfile_prefixes, | |
4872 | concat (gcc_exec_prefix, machine_suffix, | |
4873 | standard_startfile_prefix, NULL_PTR), | |
4874 | "BINUTILS", 0, 0, NULL_PTR); | |
4875 | } | |
4876 | ||
4877 | /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */ | |
4878 | if (gcc_exec_prefix) | |
4879 | { | |
4880 | char * temp = (char *) xmalloc (strlen (gcc_exec_prefix) | |
4881 | + strlen (spec_version) | |
4882 | + strlen (spec_machine) + 3); | |
4883 | strcpy (temp, gcc_exec_prefix); | |
4884 | strcat (temp, spec_machine); | |
4885 | strcat (temp, dir_separator_str); | |
4886 | strcat (temp, spec_version); | |
4887 | strcat (temp, dir_separator_str); | |
4888 | gcc_exec_prefix = temp; | |
4889 | } | |
4890 | ||
4891 | /* Now we have the specs. | |
4892 | Set the `valid' bits for switches that match anything in any spec. */ | |
4893 | ||
4894 | validate_all_switches (); | |
4895 | ||
4896 | /* Now that we have the switches and the specs, set | |
4897 | the subdirectory based on the options. */ | |
4898 | set_multilib_dir (); | |
4899 | ||
4900 | /* Warn about any switches that no pass was interested in. */ | |
4901 | ||
4902 | for (i = 0; i < n_switches; i++) | |
4903 | if (! switches[i].valid) | |
4904 | error ("unrecognized option `-%s'", switches[i].part1); | |
4905 | ||
4906 | /* Obey some of the options. */ | |
4907 | ||
4908 | if (print_search_dirs) | |
4909 | { | |
4910 | printf ("install: %s%s\n", standard_exec_prefix, machine_suffix); | |
4911 | printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0)); | |
4912 | printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0)); | |
4913 | exit (0); | |
4914 | } | |
4915 | ||
4916 | if (print_file_name) | |
4917 | { | |
4918 | printf ("%s\n", find_file (print_file_name)); | |
4919 | exit (0); | |
4920 | } | |
4921 | ||
4922 | if (print_prog_name) | |
4923 | { | |
4924 | char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK); | |
4925 | printf ("%s\n", (newname ? newname : print_prog_name)); | |
4926 | exit (0); | |
4927 | } | |
4928 | ||
4929 | if (print_multi_lib) | |
4930 | { | |
4931 | print_multilib_info (); | |
4932 | exit (0); | |
4933 | } | |
4934 | ||
4935 | if (print_multi_directory) | |
4936 | { | |
4937 | if (multilib_dir == NULL) | |
4938 | printf (".\n"); | |
4939 | else | |
4940 | printf ("%s\n", multilib_dir); | |
4941 | exit (0); | |
4942 | } | |
4943 | ||
4944 | if (print_help_list) | |
4945 | { | |
4946 | display_help (); | |
4947 | ||
4948 | if (! verbose_flag) | |
4949 | { | |
4950 | printf ("\nReport bugs to egcs-bugs@cygnus.com.\n"); | |
4951 | printf ("Please see the file BUGS (included with the sources) first.\n"); | |
4952 | ||
4953 | exit (0); | |
4954 | } | |
4955 | ||
4956 | /* We do not exit here. Instead we have created a fake input file | |
4957 | called 'help-dummy' which needs to be compiled, and we pass this | |
4958 | on the the various sub-processes, along with the --help switch. */ | |
4959 | } | |
4960 | ||
4961 | if (verbose_flag) | |
4962 | { | |
4963 | int n; | |
4964 | ||
4965 | /* compiler_version is truncated at the first space when initialized | |
4966 | from version string, so truncate version_string at the first space | |
4967 | before comparing. */ | |
4968 | for (n = 0; version_string[n]; n++) | |
4969 | if (version_string[n] == ' ') | |
4970 | break; | |
4971 | ||
4972 | if (! strncmp (version_string, compiler_version, n) | |
4973 | && compiler_version[n] == 0) | |
4974 | fprintf (stderr, "gcc version %s\n", version_string); | |
4975 | else | |
4976 | fprintf (stderr, "gcc driver version %s executing gcc version %s\n", | |
4977 | version_string, compiler_version); | |
4978 | ||
4979 | if (n_infiles == 0) | |
4980 | exit (0); | |
4981 | } | |
4982 | ||
4983 | if (n_infiles == added_libraries) | |
4984 | fatal ("No input files"); | |
4985 | ||
4986 | /* Make a place to record the compiler output file names | |
4987 | that correspond to the input files. */ | |
4988 | ||
4989 | i = n_infiles; | |
4990 | #ifdef LANG_SPECIFIC_DRIVER | |
4991 | i += lang_specific_extra_outfiles; | |
4992 | #endif | |
4993 | outfiles = (char **) xmalloc (i * sizeof (char *)); | |
4994 | bzero ((char *) outfiles, i * sizeof (char *)); | |
4995 | ||
4996 | /* Record which files were specified explicitly as link input. */ | |
4997 | ||
4998 | explicit_link_files = xmalloc (n_infiles); | |
4999 | bzero (explicit_link_files, n_infiles); | |
5000 | ||
5001 | for (i = 0; i < n_infiles; i++) | |
5002 | { | |
5003 | register struct compiler *cp = 0; | |
5004 | int this_file_error = 0; | |
5005 | ||
5006 | /* Tell do_spec what to substitute for %i. */ | |
5007 | ||
5008 | input_filename = infiles[i].name; | |
5009 | input_filename_length = strlen (input_filename); | |
5010 | input_file_number = i; | |
5011 | ||
5012 | /* Use the same thing in %o, unless cp->spec says otherwise. */ | |
5013 | ||
5014 | outfiles[i] = input_filename; | |
5015 | ||
5016 | /* Figure out which compiler from the file's suffix. */ | |
5017 | ||
5018 | cp = lookup_compiler (infiles[i].name, input_filename_length, | |
5019 | infiles[i].language); | |
5020 | ||
5021 | if (cp) | |
5022 | { | |
5023 | /* Ok, we found an applicable compiler. Run its spec. */ | |
5024 | /* First say how much of input_filename to substitute for %b */ | |
5025 | register char *p; | |
5026 | int len; | |
5027 | ||
5028 | if (cp->spec[0][0] == '#') | |
5029 | error ("%s: %s compiler not installed on this system", | |
5030 | input_filename, &cp->spec[0][1]); | |
5031 | ||
5032 | input_basename = input_filename; | |
5033 | for (p = input_filename; *p; p++) | |
5034 | if (*p == '/' || *p == DIR_SEPARATOR) | |
5035 | input_basename = p + 1; | |
5036 | ||
5037 | /* Find a suffix starting with the last period, | |
5038 | and set basename_length to exclude that suffix. */ | |
5039 | basename_length = strlen (input_basename); | |
5040 | p = input_basename + basename_length; | |
5041 | while (p != input_basename && *p != '.') --p; | |
5042 | if (*p == '.' && p != input_basename) | |
5043 | { | |
5044 | basename_length = p - input_basename; | |
5045 | input_suffix = p + 1; | |
5046 | } | |
5047 | else | |
5048 | input_suffix = ""; | |
5049 | ||
5050 | len = 0; | |
5051 | for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++) | |
5052 | if (cp->spec[j]) | |
5053 | len += strlen (cp->spec[j]); | |
5054 | ||
5055 | p = (char *) xmalloc (len + 1); | |
5056 | ||
5057 | len = 0; | |
5058 | for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++) | |
5059 | if (cp->spec[j]) | |
5060 | { | |
5061 | strcpy (p + len, cp->spec[j]); | |
5062 | len += strlen (cp->spec[j]); | |
5063 | } | |
5064 | ||
5065 | value = do_spec (p); | |
5066 | free (p); | |
5067 | if (value < 0) | |
5068 | this_file_error = 1; | |
5069 | } | |
5070 | ||
5071 | /* If this file's name does not contain a recognized suffix, | |
5072 | record it as explicit linker input. */ | |
5073 | ||
5074 | else | |
5075 | explicit_link_files[i] = 1; | |
5076 | ||
5077 | /* Clear the delete-on-failure queue, deleting the files in it | |
5078 | if this compilation failed. */ | |
5079 | ||
5080 | if (this_file_error) | |
5081 | { | |
5082 | delete_failure_queue (); | |
5083 | error_count++; | |
5084 | } | |
5085 | /* If this compilation succeeded, don't delete those files later. */ | |
5086 | clear_failure_queue (); | |
5087 | } | |
5088 | ||
5089 | #ifdef LANG_SPECIFIC_DRIVER | |
5090 | if (error_count == 0) | |
5091 | { | |
5092 | /* Make sure INPUT_FILE_NUMBER points to first available open | |
5093 | slot. */ | |
5094 | input_file_number = n_infiles; | |
5095 | if (lang_specific_pre_link ()) | |
5096 | error_count++; | |
5097 | } | |
5098 | #endif | |
5099 | ||
5100 | /* Run ld to link all the compiler output files. */ | |
5101 | ||
5102 | if (error_count == 0) | |
5103 | { | |
5104 | int tmp = execution_count; | |
5105 | ||
5106 | /* We'll use ld if we can't find collect2. */ | |
5107 | if (! strcmp (linker_name_spec, "collect2")) | |
5108 | { | |
5109 | char *s = find_a_file (&exec_prefixes, "collect2", X_OK); | |
5110 | if (s == NULL) | |
5111 | linker_name_spec = "ld"; | |
5112 | } | |
5113 | /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables | |
5114 | for collect. */ | |
5115 | putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH="); | |
5116 | putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH="); | |
5117 | ||
5118 | value = do_spec (link_command_spec); | |
5119 | if (value < 0) | |
5120 | error_count = 1; | |
5121 | linker_was_run = (tmp != execution_count); | |
5122 | } | |
5123 | ||
5124 | /* Warn if a -B option was specified but the prefix was never used. */ | |
5125 | unused_prefix_warnings (&exec_prefixes); | |
5126 | unused_prefix_warnings (&startfile_prefixes); | |
5127 | ||
5128 | /* If options said don't run linker, | |
5129 | complain about input files to be given to the linker. */ | |
5130 | ||
5131 | if (! linker_was_run && error_count == 0) | |
5132 | for (i = 0; i < n_infiles; i++) | |
5133 | if (explicit_link_files[i]) | |
5134 | error ("%s: linker input file unused since linking not done", | |
5135 | outfiles[i]); | |
5136 | ||
5137 | /* Delete some or all of the temporary files we made. */ | |
5138 | ||
5139 | if (error_count) | |
5140 | delete_failure_queue (); | |
5141 | delete_temp_files (); | |
5142 | ||
5143 | if (print_help_list) | |
5144 | { | |
5145 | printf ("\nReport bugs to egcs-bugs@cygnus.com.\n"); | |
5146 | printf ("Please see the file BUGS (included with the sources) first.\n"); | |
5147 | } | |
5148 | ||
5149 | exit (error_count > 0 ? (signal_count ? 2 : 1) : 0); | |
5150 | /* NOTREACHED */ | |
5151 | return 0; | |
5152 | } | |
5153 | ||
5154 | /* Find the proper compilation spec for the file name NAME, | |
5155 | whose length is LENGTH. LANGUAGE is the specified language, | |
5156 | or 0 if this file is to be passed to the linker. */ | |
5157 | ||
5158 | static struct compiler * | |
5159 | lookup_compiler (name, length, language) | |
5160 | char *name; | |
5161 | size_t length; | |
5162 | char *language; | |
5163 | { | |
5164 | struct compiler *cp; | |
5165 | ||
5166 | /* If this was specified by the user to be a linker input, indicate that. */ | |
5167 | if (language != 0 && language[0] == '*') | |
5168 | return 0; | |
5169 | ||
5170 | /* Otherwise, look for the language, if one is spec'd. */ | |
5171 | if (language != 0) | |
5172 | { | |
5173 | for (cp = compilers + n_compilers - 1; cp >= compilers; cp--) | |
5174 | if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language)) | |
5175 | return cp; | |
5176 | ||
5177 | error ("language %s not recognized", language); | |
5178 | return 0; | |
5179 | } | |
5180 | ||
5181 | /* Look for a suffix. */ | |
5182 | for (cp = compilers + n_compilers - 1; cp >= compilers; cp--) | |
5183 | { | |
5184 | if (/* The suffix `-' matches only the file name `-'. */ | |
5185 | (!strcmp (cp->suffix, "-") && !strcmp (name, "-")) | |
5186 | || (strlen (cp->suffix) < length | |
5187 | /* See if the suffix matches the end of NAME. */ | |
5188 | #ifdef OS2 | |
5189 | && ((!strcmp (cp->suffix, | |
5190 | name + length - strlen (cp->suffix)) | |
5191 | || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")) | |
5192 | && !strcasecmp (cp->suffix, | |
5193 | name + length - strlen (cp->suffix))) | |
5194 | #else | |
5195 | && !strcmp (cp->suffix, | |
5196 | name + length - strlen (cp->suffix)) | |
5197 | #endif | |
5198 | )) | |
5199 | { | |
5200 | if (cp->spec[0][0] == '@') | |
5201 | { | |
5202 | struct compiler *new; | |
5203 | ||
5204 | /* An alias entry maps a suffix to a language. | |
5205 | Search for the language; pass 0 for NAME and LENGTH | |
5206 | to avoid infinite recursion if language not found. | |
5207 | Construct the new compiler spec. */ | |
5208 | language = cp->spec[0] + 1; | |
5209 | new = (struct compiler *) xmalloc (sizeof (struct compiler)); | |
5210 | new->suffix = cp->suffix; | |
5211 | bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec, | |
5212 | (char *) new->spec, sizeof new->spec); | |
5213 | return new; | |
5214 | } | |
5215 | ||
5216 | /* A non-alias entry: return it. */ | |
5217 | return cp; | |
5218 | } | |
5219 | } | |
5220 | ||
5221 | return 0; | |
5222 | } | |
5223 | \f | |
5224 | char * | |
5225 | xmalloc (size) | |
5226 | unsigned size; | |
5227 | { | |
5228 | register char *value = (char *) malloc (size); | |
5229 | if (value == 0) | |
5230 | fatal ("virtual memory exhausted"); | |
5231 | return value; | |
5232 | } | |
5233 | ||
5234 | char * | |
5235 | xrealloc (ptr, size) | |
5236 | char *ptr; | |
5237 | unsigned size; | |
5238 | { | |
5239 | register char *value = (char *) realloc (ptr, size); | |
5240 | if (value == 0) | |
5241 | fatal ("virtual memory exhausted"); | |
5242 | return value; | |
5243 | } | |
5244 | ||
5245 | /* This function is based on the one in libiberty. */ | |
5246 | ||
5247 | static char * | |
5248 | concat VPROTO((char *first, ...)) | |
5249 | { | |
5250 | register int length; | |
5251 | register char *newstr; | |
5252 | register char *end; | |
5253 | register char *arg; | |
5254 | va_list args; | |
5255 | #ifndef __STDC__ | |
5256 | char *first; | |
5257 | #endif | |
5258 | ||
5259 | /* First compute the size of the result and get sufficient memory. */ | |
5260 | ||
5261 | VA_START (args, first); | |
5262 | #ifndef __STDC__ | |
5263 | first = va_arg (args, char *); | |
5264 | #endif | |
5265 | ||
5266 | arg = first; | |
5267 | length = 0; | |
5268 | ||
5269 | while (arg != 0) | |
5270 | { | |
5271 | length += strlen (arg); | |
5272 | arg = va_arg (args, char *); | |
5273 | } | |
5274 | ||
5275 | newstr = (char *) xmalloc (length + 1); | |
5276 | va_end (args); | |
5277 | ||
5278 | /* Now copy the individual pieces to the result string. */ | |
5279 | ||
5280 | VA_START (args, first); | |
5281 | #ifndef __STDC__ | |
5282 | first = va_arg (args, char *); | |
5283 | #endif | |
5284 | ||
5285 | end = newstr; | |
5286 | arg = first; | |
5287 | while (arg != 0) | |
5288 | { | |
5289 | while (*arg) | |
5290 | *end++ = *arg++; | |
5291 | arg = va_arg (args, char *); | |
5292 | } | |
5293 | *end = '\000'; | |
5294 | va_end (args); | |
5295 | ||
5296 | return (newstr); | |
5297 | } | |
5298 | ||
5299 | static char * | |
5300 | save_string (s, len) | |
5301 | char *s; | |
5302 | int len; | |
5303 | { | |
5304 | register char *result = xmalloc (len + 1); | |
5305 | ||
5306 | bcopy (s, result, len); | |
5307 | result[len] = 0; | |
5308 | return result; | |
5309 | } | |
5310 | ||
5311 | static void | |
5312 | pfatal_with_name (name) | |
5313 | char *name; | |
5314 | { | |
5315 | fatal ("%s: %s", name, my_strerror (errno)); | |
5316 | } | |
5317 | ||
5318 | static void | |
5319 | perror_with_name (name) | |
5320 | char *name; | |
5321 | { | |
5322 | error ("%s: %s", name, my_strerror (errno)); | |
5323 | } | |
5324 | ||
5325 | static void | |
5326 | pfatal_pexecute (errmsg_fmt, errmsg_arg) | |
5327 | char *errmsg_fmt; | |
5328 | char *errmsg_arg; | |
5329 | { | |
5330 | int save_errno = errno; | |
5331 | ||
5332 | if (errmsg_arg) | |
5333 | { | |
5334 | /* Space for trailing '\0' is in %s. */ | |
5335 | char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg)); | |
5336 | sprintf (msg, errmsg_fmt, errmsg_arg); | |
5337 | errmsg_fmt = msg; | |
5338 | } | |
5339 | ||
5340 | fatal ("%s: %s", errmsg_fmt, my_strerror (save_errno)); | |
5341 | } | |
5342 | ||
5343 | /* More 'friendly' abort that prints the line and file. | |
5344 | config.h can #define abort fancy_abort if you like that sort of thing. */ | |
5345 | ||
5346 | void | |
5347 | fancy_abort () | |
5348 | { | |
5349 | fatal ("Internal gcc abort."); | |
5350 | } | |
5351 | \f | |
5352 | /* Output an error message and exit */ | |
5353 | ||
5354 | static void | |
5355 | fatal VPROTO((char *format, ...)) | |
5356 | { | |
5357 | #ifndef __STDC__ | |
5358 | char *format; | |
5359 | #endif | |
5360 | va_list ap; | |
5361 | ||
5362 | VA_START (ap, format); | |
5363 | ||
5364 | #ifndef __STDC__ | |
5365 | format = va_arg (ap, char *); | |
5366 | #endif | |
5367 | ||
5368 | fprintf (stderr, "%s: ", programname); | |
5369 | vfprintf (stderr, format, ap); | |
5370 | va_end (ap); | |
5371 | fprintf (stderr, "\n"); | |
5372 | delete_temp_files (); | |
5373 | exit (1); | |
5374 | } | |
5375 | ||
5376 | static void | |
5377 | error VPROTO((char *format, ...)) | |
5378 | { | |
5379 | #ifndef __STDC__ | |
5380 | char *format; | |
5381 | #endif | |
5382 | va_list ap; | |
5383 | ||
5384 | VA_START (ap, format); | |
5385 | ||
5386 | #ifndef __STDC__ | |
5387 | format = va_arg (ap, char *); | |
5388 | #endif | |
5389 | ||
5390 | fprintf (stderr, "%s: ", programname); | |
5391 | vfprintf (stderr, format, ap); | |
5392 | va_end (ap); | |
5393 | ||
5394 | fprintf (stderr, "\n"); | |
5395 | } | |
5396 | \f | |
5397 | static void | |
5398 | validate_all_switches () | |
5399 | { | |
5400 | struct compiler *comp; | |
5401 | register char *p; | |
5402 | register char c; | |
5403 | struct spec_list *spec; | |
5404 | ||
5405 | for (comp = compilers; comp->spec[0]; comp++) | |
5406 | { | |
5407 | size_t i; | |
5408 | for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++) | |
5409 | { | |
5410 | p = comp->spec[i]; | |
5411 | while ((c = *p++)) | |
5412 | if (c == '%' && *p == '{') | |
5413 | /* We have a switch spec. */ | |
5414 | validate_switches (p + 1); | |
5415 | } | |
5416 | } | |
5417 | ||
5418 | /* look through the linked list of specs read from the specs file */ | |
5419 | for (spec = specs; spec ; spec = spec->next) | |
5420 | { | |
5421 | p = *(spec->ptr_spec); | |
5422 | while ((c = *p++)) | |
5423 | if (c == '%' && *p == '{') | |
5424 | /* We have a switch spec. */ | |
5425 | validate_switches (p + 1); | |
5426 | } | |
5427 | ||
5428 | p = link_command_spec; | |
5429 | while ((c = *p++)) | |
5430 | if (c == '%' && *p == '{') | |
5431 | /* We have a switch spec. */ | |
5432 | validate_switches (p + 1); | |
5433 | } | |
5434 | ||
5435 | /* Look at the switch-name that comes after START | |
5436 | and mark as valid all supplied switches that match it. */ | |
5437 | ||
5438 | static void | |
5439 | validate_switches (start) | |
5440 | char *start; | |
5441 | { | |
5442 | register char *p = start; | |
5443 | char *filter; | |
5444 | register int i; | |
5445 | int suffix = 0; | |
5446 | ||
5447 | if (*p == '|') | |
5448 | ++p; | |
5449 | ||
5450 | if (*p == '!') | |
5451 | ++p; | |
5452 | ||
5453 | if (*p == '.') | |
5454 | suffix = 1, ++p; | |
5455 | ||
5456 | filter = p; | |
5457 | while (*p != ':' && *p != '}') p++; | |
5458 | ||
5459 | if (suffix) | |
5460 | ; | |
5461 | else if (p[-1] == '*') | |
5462 | { | |
5463 | /* Mark all matching switches as valid. */ | |
5464 | --p; | |
5465 | for (i = 0; i < n_switches; i++) | |
5466 | if (!strncmp (switches[i].part1, filter, p - filter)) | |
5467 | switches[i].valid = 1; | |
5468 | } | |
5469 | else | |
5470 | { | |
5471 | /* Mark an exact matching switch as valid. */ | |
5472 | for (i = 0; i < n_switches; i++) | |
5473 | { | |
5474 | if (!strncmp (switches[i].part1, filter, p - filter) | |
5475 | && switches[i].part1[p - filter] == 0) | |
5476 | switches[i].valid = 1; | |
5477 | } | |
5478 | } | |
5479 | } | |
5480 | \f | |
5481 | /* Check whether a particular argument was used. The first time we | |
5482 | canonicalize the switches to keep only the ones we care about. */ | |
5483 | ||
5484 | static int | |
5485 | used_arg (p, len) | |
5486 | char *p; | |
5487 | int len; | |
5488 | { | |
5489 | struct mswitchstr { | |
5490 | char *str; | |
5491 | char *replace; | |
5492 | int len; | |
5493 | int rep_len; | |
5494 | }; | |
5495 | ||
5496 | static struct mswitchstr *mswitches; | |
5497 | static int n_mswitches; | |
5498 | int i, j; | |
5499 | ||
5500 | if (!mswitches) | |
5501 | { | |
5502 | struct mswitchstr *matches; | |
5503 | char *q; | |
5504 | int cnt = 0; | |
5505 | ||
5506 | /* Break multilib_matches into the component strings of string and replacement | |
5507 | string */ | |
5508 | for (q = multilib_matches; *q != '\0'; q++) | |
5509 | if (*q == ';') | |
5510 | cnt++; | |
5511 | ||
5512 | matches = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt); | |
5513 | i = 0; | |
5514 | q = multilib_matches; | |
5515 | while (*q != '\0') | |
5516 | { | |
5517 | matches[i].str = q; | |
5518 | while (*q != ' ') | |
5519 | { | |
5520 | if (*q == '\0') | |
5521 | abort (); | |
5522 | q++; | |
5523 | } | |
5524 | *q = '\0'; | |
5525 | matches[i].len = q - matches[i].str; | |
5526 | ||
5527 | matches[i].replace = ++q; | |
5528 | while (*q != ';' && *q != '\0') | |
5529 | { | |
5530 | if (*q == ' ') | |
5531 | abort (); | |
5532 | q++; | |
5533 | } | |
5534 | matches[i].rep_len = q - matches[i].replace; | |
5535 | i++; | |
5536 | if (*q == ';') | |
5537 | *q++ = '\0'; | |
5538 | else | |
5539 | break; | |
5540 | } | |
5541 | ||
5542 | /* Now build a list of the replacement string for switches that we care | |
5543 | about. Make sure we allocate at least one entry. This prevents | |
5544 | xmalloc from calling fatal, and prevents us from re-executing this | |
5545 | block of code. */ | |
5546 | mswitches | |
5547 | = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr)) | |
5548 | * (n_switches ? n_switches : 1)); | |
5549 | for (i = 0; i < n_switches; i++) | |
5550 | { | |
5551 | int xlen = strlen (switches[i].part1); | |
5552 | for (j = 0; j < cnt; j++) | |
5553 | if (xlen == matches[j].len && ! strcmp (switches[i].part1, matches[j].str)) | |
5554 | { | |
5555 | mswitches[n_mswitches].str = matches[j].replace; | |
5556 | mswitches[n_mswitches].len = matches[j].rep_len; | |
5557 | mswitches[n_mswitches].replace = (char *)0; | |
5558 | mswitches[n_mswitches].rep_len = 0; | |
5559 | n_mswitches++; | |
5560 | break; | |
5561 | } | |
5562 | } | |
5563 | } | |
5564 | ||
5565 | for (i = 0; i < n_mswitches; i++) | |
5566 | if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len)) | |
5567 | return 1; | |
5568 | ||
5569 | return 0; | |
5570 | } | |
5571 | ||
5572 | static int | |
5573 | default_arg (p, len) | |
5574 | char *p; | |
5575 | int len; | |
5576 | { | |
5577 | char *start, *end; | |
5578 | ||
5579 | for (start = multilib_defaults; *start != '\0'; start = end+1) | |
5580 | { | |
5581 | while (*start == ' ' || *start == '\t') | |
5582 | start++; | |
5583 | ||
5584 | if (*start == '\0') | |
5585 | break; | |
5586 | ||
5587 | for (end = start+1; *end != ' ' && *end != '\t' && *end != '\0'; end++) | |
5588 | ; | |
5589 | ||
5590 | if ((end - start) == len && strncmp (p, start, len) == 0) | |
5591 | return 1; | |
5592 | ||
5593 | if (*end == '\0') | |
5594 | break; | |
5595 | } | |
5596 | ||
5597 | return 0; | |
5598 | } | |
5599 | ||
5600 | /* Work out the subdirectory to use based on the | |
5601 | options. The format of multilib_select is a list of elements. | |
5602 | Each element is a subdirectory name followed by a list of options | |
5603 | followed by a semicolon. gcc will consider each line in turn. If | |
5604 | none of the options beginning with an exclamation point are | |
5605 | present, and all of the other options are present, that | |
5606 | subdirectory will be used. */ | |
5607 | ||
5608 | static void | |
5609 | set_multilib_dir () | |
5610 | { | |
5611 | char *p = multilib_select; | |
5612 | int this_path_len; | |
5613 | char *this_path, *this_arg; | |
5614 | int not_arg; | |
5615 | int ok; | |
5616 | ||
5617 | while (*p != '\0') | |
5618 | { | |
5619 | /* Ignore newlines. */ | |
5620 | if (*p == '\n') | |
5621 | { | |
5622 | ++p; | |
5623 | continue; | |
5624 | } | |
5625 | ||
5626 | /* Get the initial path. */ | |
5627 | this_path = p; | |
5628 | while (*p != ' ') | |
5629 | { | |
5630 | if (*p == '\0') | |
5631 | abort (); | |
5632 | ++p; | |
5633 | } | |
5634 | this_path_len = p - this_path; | |
5635 | ||
5636 | /* Check the arguments. */ | |
5637 | ok = 1; | |
5638 | ++p; | |
5639 | while (*p != ';') | |
5640 | { | |
5641 | if (*p == '\0') | |
5642 | abort (); | |
5643 | ||
5644 | if (! ok) | |
5645 | { | |
5646 | ++p; | |
5647 | continue; | |
5648 | } | |
5649 | ||
5650 | this_arg = p; | |
5651 | while (*p != ' ' && *p != ';') | |
5652 | { | |
5653 | if (*p == '\0') | |
5654 | abort (); | |
5655 | ++p; | |
5656 | } | |
5657 | ||
5658 | if (*this_arg != '!') | |
5659 | not_arg = 0; | |
5660 | else | |
5661 | { | |
5662 | not_arg = 1; | |
5663 | ++this_arg; | |
5664 | } | |
5665 | ||
5666 | /* If this is a default argument, we can just ignore it. | |
5667 | This is true even if this_arg begins with '!'. Beginning | |
5668 | with '!' does not mean that this argument is necessarily | |
5669 | inappropriate for this library: it merely means that | |
5670 | there is a more specific library which uses this | |
5671 | argument. If this argument is a default, we need not | |
5672 | consider that more specific library. */ | |
5673 | if (! default_arg (this_arg, p - this_arg)) | |
5674 | { | |
5675 | ok = used_arg (this_arg, p - this_arg); | |
5676 | if (not_arg) | |
5677 | ok = ! ok; | |
5678 | } | |
5679 | ||
5680 | if (*p == ' ') | |
5681 | ++p; | |
5682 | } | |
5683 | ||
5684 | if (ok) | |
5685 | { | |
5686 | if (this_path_len != 1 | |
5687 | || this_path[0] != '.') | |
5688 | { | |
5689 | multilib_dir = xmalloc (this_path_len + 1); | |
5690 | strncpy (multilib_dir, this_path, this_path_len); | |
5691 | multilib_dir[this_path_len] = '\0'; | |
5692 | } | |
5693 | break; | |
5694 | } | |
5695 | ||
5696 | ++p; | |
5697 | } | |
5698 | } | |
5699 | ||
5700 | /* Print out the multiple library subdirectory selection | |
5701 | information. This prints out a series of lines. Each line looks | |
5702 | like SUBDIRECTORY;@OPTION@OPTION, with as many options as is | |
5703 | required. Only the desired options are printed out, the negative | |
5704 | matches. The options are print without a leading dash. There are | |
5705 | no spaces to make it easy to use the information in the shell. | |
5706 | Each subdirectory is printed only once. This assumes the ordering | |
5707 | generated by the genmultilib script. */ | |
5708 | ||
5709 | static void | |
5710 | print_multilib_info () | |
5711 | { | |
5712 | char *p = multilib_select; | |
5713 | char *last_path = 0, *this_path; | |
5714 | int skip; | |
5715 | int last_path_len = 0; | |
5716 | ||
5717 | while (*p != '\0') | |
5718 | { | |
5719 | /* Ignore newlines. */ | |
5720 | if (*p == '\n') | |
5721 | { | |
5722 | ++p; | |
5723 | continue; | |
5724 | } | |
5725 | ||
5726 | /* Get the initial path. */ | |
5727 | this_path = p; | |
5728 | while (*p != ' ') | |
5729 | { | |
5730 | if (*p == '\0') | |
5731 | abort (); | |
5732 | ++p; | |
5733 | } | |
5734 | ||
5735 | /* If this is a duplicate, skip it. */ | |
5736 | skip = (last_path != 0 && p - this_path == last_path_len | |
5737 | && ! strncmp (last_path, this_path, last_path_len)); | |
5738 | ||
5739 | last_path = this_path; | |
5740 | last_path_len = p - this_path; | |
5741 | ||
5742 | /* If this directory requires any default arguments, we can skip | |
5743 | it. We will already have printed a directory identical to | |
5744 | this one which does not require that default argument. */ | |
5745 | if (! skip) | |
5746 | { | |
5747 | char *q; | |
5748 | ||
5749 | q = p + 1; | |
5750 | while (*q != ';') | |
5751 | { | |
5752 | char *arg; | |
5753 | ||
5754 | if (*q == '\0') | |
5755 | abort (); | |
5756 | ||
5757 | if (*q == '!') | |
5758 | arg = NULL; | |
5759 | else | |
5760 | arg = q; | |
5761 | ||
5762 | while (*q != ' ' && *q != ';') | |
5763 | { | |
5764 | if (*q == '\0') | |
5765 | abort (); | |
5766 | ++q; | |
5767 | } | |
5768 | ||
5769 | if (arg != NULL | |
5770 | && default_arg (arg, q - arg)) | |
5771 | { | |
5772 | skip = 1; | |
5773 | break; | |
5774 | } | |
5775 | ||
5776 | if (*q == ' ') | |
5777 | ++q; | |
5778 | } | |
5779 | } | |
5780 | ||
5781 | if (! skip) | |
5782 | { | |
5783 | char *p1; | |
5784 | ||
5785 | for (p1 = last_path; p1 < p; p1++) | |
5786 | putchar (*p1); | |
5787 | putchar (';'); | |
5788 | } | |
5789 | ||
5790 | ++p; | |
5791 | while (*p != ';') | |
5792 | { | |
5793 | int use_arg; | |
5794 | ||
5795 | if (*p == '\0') | |
5796 | abort (); | |
5797 | ||
5798 | if (skip) | |
5799 | { | |
5800 | ++p; | |
5801 | continue; | |
5802 | } | |
5803 | ||
5804 | use_arg = *p != '!'; | |
5805 | ||
5806 | if (use_arg) | |
5807 | putchar ('@'); | |
5808 | ||
5809 | while (*p != ' ' && *p != ';') | |
5810 | { | |
5811 | if (*p == '\0') | |
5812 | abort (); | |
5813 | if (use_arg) | |
5814 | putchar (*p); | |
5815 | ++p; | |
5816 | } | |
5817 | ||
5818 | if (*p == ' ') | |
5819 | ++p; | |
5820 | } | |
5821 | ||
5822 | if (! skip) | |
5823 | { | |
5824 | /* If there are extra options, print them now */ | |
5825 | if (multilib_extra && *multilib_extra) | |
5826 | { | |
5827 | int print_at = TRUE; | |
5828 | char *q; | |
5829 | ||
5830 | for (q = multilib_extra; *q != '\0'; q++) | |
5831 | { | |
5832 | if (*q == ' ') | |
5833 | print_at = TRUE; | |
5834 | else | |
5835 | { | |
5836 | if (print_at) | |
5837 | putchar ('@'); | |
5838 | putchar (*q); | |
5839 | print_at = FALSE; | |
5840 | } | |
5841 | } | |
5842 | } | |
5843 | putchar ('\n'); | |
5844 | } | |
5845 | ||
5846 | ++p; | |
5847 | } | |
5848 | } |