1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92-98, 1999 Free Software Foundation, Inc.
4 This file is part of GNU CC.
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)
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.
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.
21 This paragraph is here to try to keep Sun CC from dying.
22 The number of chars here seems crucial!!!! */
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.
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". */
43 #define exit __posix_exit
46 /* By default there is no special suffix for executables. */
47 #ifdef EXECUTABLE_SUFFIX
48 #define HAVE_EXECUTABLE_SUFFIX
50 #define EXECUTABLE_SUFFIX ""
53 /* By default, the suffix for object files is ".o". */
55 #define HAVE_OBJECT_SUFFIX
57 #define OBJECT_SUFFIX ".o"
60 /* By default, colon separates directories in a path. */
61 #ifndef PATH_SEPARATOR
62 #define PATH_SEPARATOR ':'
66 #define DIR_SEPARATOR '/'
69 static char dir_separator_str[] = {DIR_SEPARATOR, 0};
71 #define obstack_chunk_alloc xmalloc
72 #define obstack_chunk_free free
74 #ifndef GET_ENV_PATH_LIST
75 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
79 #define kill(p,s) raise(s)
82 /* If a stage of compilation returns an exit status >= 1,
83 compilation of that file ceases. */
85 #define MIN_FATAL_STATUS 1
87 /* Flag saying to print the directories gcc will search through looking for
88 programs, libraries, etc. */
90 static int print_search_dirs;
92 /* Flag saying to print the full filename of this file
93 as found through our usual search mechanism. */
95 static char *print_file_name = NULL;
97 /* As print_file_name, but search for executable file. */
99 static char *print_prog_name = NULL;
101 /* Flag saying to print the relative path we'd use to
102 find libgcc.a given the current compiler flags. */
104 static int print_multi_directory;
106 /* Flag saying to print the list of subdirectories and
107 compiler flags used to select them in a standard form. */
109 static int print_multi_lib;
111 /* Flag saying to print the command line options understood by gcc and its
114 static int print_help_list;
116 /* Flag indicating whether we should print the command and arguments */
118 static int verbose_flag;
120 /* Nonzero means write "temp" files in source directory
121 and use the source file's name in them, and don't delete them. */
123 static int save_temps_flag;
125 /* The compiler version. */
127 static char *compiler_version;
129 /* The target version specified with -V */
131 static char *spec_version = DEFAULT_TARGET_VERSION;
133 /* The target machine specified with -b. */
135 static char *spec_machine = DEFAULT_TARGET_MACHINE;
137 /* Nonzero if cross-compiling.
138 When -b is used, the value comes from the `specs' file. */
141 static char *cross_compile = "1";
143 static char *cross_compile = "0";
146 /* The number of errors that have occurred; the link phase will not be
147 run if this is non-zero. */
148 static int error_count = 0;
150 /* This is the obstack which we use to allocate many strings. */
152 static struct obstack obstack;
154 /* This is the obstack to build an environment variable to pass to
155 collect2 that describes all of the relevant switches of what to
156 pass the compiler in building the list of pointers to constructors
159 static struct obstack collect_obstack;
161 extern char *version_string;
163 /* Forward declaration for prototypes. */
166 static void init_spec PROTO((void));
167 static void read_specs PROTO((char *, int));
168 static void set_spec PROTO((char *, char *));
169 static struct compiler *lookup_compiler PROTO((char *, size_t, char *));
170 static char *build_search_list PROTO((struct path_prefix *, char *, int));
171 static void putenv_from_prefixes PROTO((struct path_prefix *, char *));
172 static char *find_a_file PROTO((struct path_prefix *, char *, int));
173 static void add_prefix PROTO((struct path_prefix *, const char *,
174 const char *, int, int, int *));
175 static char *skip_whitespace PROTO((char *));
176 static void record_temp_file PROTO((char *, int, int));
177 static void delete_if_ordinary PROTO((char *));
178 static void delete_temp_files PROTO((void));
179 static void delete_failure_queue PROTO((void));
180 static void clear_failure_queue PROTO((void));
181 static int check_live_switch PROTO((int, int));
182 static char *handle_braces PROTO((char *));
183 static char *save_string PROTO((const char *, int));
184 extern int do_spec PROTO((char *));
185 static int do_spec_1 PROTO((char *, int, char *));
186 static char *find_file PROTO((char *));
187 static int is_directory PROTO((char *, char *, int));
188 static void validate_switches PROTO((char *));
189 static void validate_all_switches PROTO((void));
190 static void give_switch PROTO((int, int, int));
191 static int used_arg PROTO((char *, int));
192 static int default_arg PROTO((char *, int));
193 static void set_multilib_dir PROTO((void));
194 static void print_multilib_info PROTO((void));
195 static void pfatal_with_name PROTO((char *)) ATTRIBUTE_NORETURN;
196 static void perror_with_name PROTO((char *));
197 static void pfatal_pexecute PROTO((char *, char *)) ATTRIBUTE_NORETURN;
198 static void fatal PVPROTO((char *, ...)) ATTRIBUTE_NORETURN;
199 static void error PVPROTO((char *, ...));
200 static void fatal PVPROTO((char *, ...))
201 ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF_1;
202 static void error PVPROTO((char *, ...)) ATTRIBUTE_PRINTF_1;
203 static void notice PVPROTO((char *, ...));
204 static void display_help PROTO((void));
206 void fancy_abort PROTO((void)) ATTRIBUTE_NORETURN;
208 #ifdef LANG_SPECIFIC_DRIVER
209 /* Called before processing to change/add/remove arguments. */
210 extern void lang_specific_driver PROTO ((void (*) PVPROTO((char *, ...)), int *, char ***, int *));
212 /* Called before linking. Returns 0 on success and -1 on failure. */
213 extern int lang_specific_pre_link ();
215 /* Number of extra output files that lang_specific_pre_link may generate. */
216 extern int lang_specific_extra_outfiles;
219 /* Specs are strings containing lines, each of which (if not blank)
220 is made up of a program name, and arguments separated by spaces.
221 The program name must be exact and start from root, since no path
222 is searched and it is unreliable to depend on the current working directory.
223 Redirection of input or output is not supported; the subprograms must
224 accept filenames saying what files to read and write.
226 In addition, the specs can contain %-sequences to substitute variable text
227 or for conditional text. Here is a table of all defined %-sequences.
228 Note that spaces are not generated automatically around the results of
229 expanding these sequences; therefore, you can concatenate them together
230 or with constant text in a single argument.
232 %% substitute one % into the program name or argument.
233 %i substitute the name of the input file being processed.
234 %b substitute the basename of the input file being processed.
235 This is the substring up to (and not including) the last period
236 and not including the directory.
238 substitute a file name that has suffix SUFFIX and is chosen
239 once per compilation, and mark the argument a la %d. To reduce
240 exposure to denial-of-service attacks, the file name is now
241 chosen in a way that is hard to predict even when previously
242 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
243 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
244 the regexp "[.A-Za-z]*" or the special string "%O", which is
245 treated exactly as if %O had been pre-processed. Previously, %g
246 was simply substituted with a file name chosen once per compilation,
247 without regard to any appended suffix (which was therefore treated
248 just like ordinary text), making such attacks more likely to succeed.
250 like %g, but generates a new temporary file name even if %uSUFFIX
253 substitutes the last file name generated with %uSUFFIX, generating a
254 new one if there is no such last file name. In the absence of any
255 %uSUFFIX, this is just like %gSUFFIX, except they don't share
256 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
257 would involve the generation of two distinct file names, one
258 for each `%g.s' and another for each `%U.s'. Previously, %U was
259 simply substituted with a file name chosen for the previous %u,
260 without regard to any appended suffix.
261 %d marks the argument containing or following the %d as a
262 temporary file name, so that that file will be deleted if CC exits
263 successfully. Unlike %g, this contributes no text to the argument.
264 %w marks the argument containing or following the %w as the
265 "output file" of this compilation. This puts the argument
266 into the sequence of arguments that %o will substitute later.
268 like %{...} but mark last argument supplied within
269 as a file to be deleted on failure.
270 %o substitutes the names of all the output files, with spaces
271 automatically placed around them. You should write spaces
272 around the %o as well or the results are undefined.
273 %o is for use in the specs for running the linker.
274 Input files whose names have no recognized suffix are not compiled
275 at all, but they are included among the output files, so they will
277 %O substitutes the suffix for object files. Note that this is
278 handled specially when it immediately follows %g, %u, or %U,
279 because of the need for those to form complete file names. The
280 handling is such that %O is treated exactly as if it had already
281 been substituted, except that %g, %u, and %U do not currently
282 support additional SUFFIX characters following %O as they would
283 following, for example, `.o'.
284 %p substitutes the standard macro predefinitions for the
285 current target machine. Use this when running cpp.
286 %P like %p, but puts `__' before and after the name of each macro.
287 (Except macros that already have __.)
289 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
290 %s current argument is the name of a library or startup file of some sort.
291 Search for that file in a standard list of directories
292 and substitute the full name found.
293 %eSTR Print STR as an error message. STR is terminated by a newline.
294 Use this when inconsistent options are detected.
295 %x{OPTION} Accumulate an option for %X.
296 %X Output the accumulated linker options specified by compilations.
297 %Y Output the accumulated assembler options specified by compilations.
298 %Z Output the accumulated preprocessor options specified by compilations.
299 %v1 Substitute the major version number of GCC.
300 (For version 2.5.n, this is 2.)
301 %v2 Substitute the minor version number of GCC.
302 (For version 2.5.n, this is 5.)
303 %a process ASM_SPEC as a spec.
304 This allows config.h to specify part of the spec for running as.
305 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
306 used here. This can be used to run a post-processor after the
307 assembler has done its job.
308 %D Dump out a -L option for each directory in startfile_prefixes.
309 If multilib_dir is set, extra entries are generated with it affixed.
310 %l process LINK_SPEC as a spec.
311 %L process LIB_SPEC as a spec.
312 %G process LIBGCC_SPEC as a spec.
313 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
314 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
315 %c process SIGNED_CHAR_SPEC as a spec.
316 %C process CPP_SPEC as a spec. A capital C is actually used here.
317 %1 process CC1_SPEC as a spec.
318 %2 process CC1PLUS_SPEC as a spec.
319 %| output "-" if the input for the current command is coming from a pipe.
320 %* substitute the variable part of a matched option. (See below.)
321 Note that each comma in the substituted string is replaced by
323 %{S} substitutes the -S switch, if that switch was given to CC.
324 If that switch was not specified, this substitutes nothing.
325 Here S is a metasyntactic variable.
326 %{S*} substitutes all the switches specified to CC whose names start
327 with -S. This is used for -o, -D, -I, etc; switches that take
328 arguments. CC considers `-o foo' as being one switch whose
329 name starts with `o'. %{o*} would substitute this text,
330 including the space; thus, two arguments would be generated.
331 %{^S*} likewise, but don't put a blank between a switch and any args.
332 %{S*:X} substitutes X if one or more switches whose names start with -S are
333 specified to CC. Note that the tail part of the -S option
334 (i.e. the part matched by the `*') will be substituted for each
335 occurrence of %* within X.
336 %{S:X} substitutes X, but only if the -S switch was given to CC.
337 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
338 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
339 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
340 %{.S:X} substitutes X, but only if processing a file with suffix S.
341 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
342 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
343 combined with ! and . as above binding stronger than the OR.
344 %(Spec) processes a specification defined in a specs file as *Spec:
345 %[Spec] as above, but put __ around -D arguments
347 The conditional text X in a %{S:X} or %{!S:X} construct may contain
348 other nested % constructs or spaces, or even newlines. They are
349 processed as usual, as described above.
351 The -O, -f, -m, and -W switches are handled specifically in these
352 constructs. If another value of -O or the negated form of a -f, -m, or
353 -W switch is found later in the command line, the earlier switch
354 value is ignored, except with {S*} where S is just one letter; this
355 passes all matching options.
357 The character | at the beginning of the predicate text is used to indicate
358 that a command should be piped to the following command, but only if -pipe
361 Note that it is built into CC which switches take arguments and which
362 do not. You might think it would be useful to generalize this to
363 allow each compiler's spec to say which switches take arguments. But
364 this cannot be done in a consistent fashion. CC cannot even decide
365 which input files have been specified without knowing which switches
366 take arguments, and it must know which input files to compile in order
367 to tell which compilers to run.
369 CC also knows implicitly that arguments starting in `-l' are to be
370 treated as compiler output files, and passed to the linker in their
371 proper position among the other output files. */
373 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
375 /* config.h can define ASM_SPEC to provide extra args to the assembler
376 or extra switch-translations. */
381 /* config.h can define ASM_FINAL_SPEC to run a post processor after
382 the assembler has run. */
383 #ifndef ASM_FINAL_SPEC
384 #define ASM_FINAL_SPEC ""
387 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
388 or extra switch-translations. */
393 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
394 or extra switch-translations. */
399 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
400 or extra switch-translations. */
402 #define CC1PLUS_SPEC ""
405 /* config.h can define LINK_SPEC to provide extra args to the linker
406 or extra switch-translations. */
411 /* config.h can define LIB_SPEC to override the default libraries. */
413 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
416 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
419 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
420 /* Have gcc do the search for libgcc.a. */
421 #define LIBGCC_SPEC "libgcc.a%s"
423 #define LIBGCC_SPEC "-lgcc"
427 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
428 #ifndef STARTFILE_SPEC
429 #define STARTFILE_SPEC \
430 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
433 /* config.h can define SWITCHES_NEED_SPACES to control which options
434 require spaces between the option and the argument. */
435 #ifndef SWITCHES_NEED_SPACES
436 #define SWITCHES_NEED_SPACES ""
439 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
441 #define ENDFILE_SPEC ""
444 /* This spec is used for telling cpp whether char is signed or not. */
445 #ifndef SIGNED_CHAR_SPEC
446 /* Use #if rather than ?:
447 because MIPS C compiler rejects like ?: in initializers. */
448 #if DEFAULT_SIGNED_CHAR
449 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
451 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
456 #define LINKER_NAME "collect2"
459 static char *cpp_spec = CPP_SPEC;
460 static char *cpp_predefines = CPP_PREDEFINES;
461 static char *cc1_spec = CC1_SPEC;
462 static char *cc1plus_spec = CC1PLUS_SPEC;
463 static char *signed_char_spec = SIGNED_CHAR_SPEC;
464 static char *asm_spec = ASM_SPEC;
465 static char *asm_final_spec = ASM_FINAL_SPEC;
466 static char *link_spec = LINK_SPEC;
467 static char *lib_spec = LIB_SPEC;
468 static char *libgcc_spec = LIBGCC_SPEC;
469 static char *endfile_spec = ENDFILE_SPEC;
470 static char *startfile_spec = STARTFILE_SPEC;
471 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
472 static char *linker_name_spec = LINKER_NAME;
474 /* Some compilers have limits on line lengths, and the multilib_select
475 and/or multilib_matches strings can be very long, so we build them at
477 static struct obstack multilib_obstack;
478 static char *multilib_select;
479 static char *multilib_matches;
480 static char *multilib_defaults;
481 #include "multilib.h"
483 /* Check whether a particular argument is a default argument. */
485 #ifndef MULTILIB_DEFAULTS
486 #define MULTILIB_DEFAULTS { "" }
489 static char *multilib_defaults_raw[] = MULTILIB_DEFAULTS;
492 struct user_specs *next;
496 static struct user_specs *user_specs_head, *user_specs_tail;
498 /* This defines which switch letters take arguments. */
500 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
501 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
502 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
503 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
504 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
505 || (CHAR) == 'B' || (CHAR) == 'b')
507 #ifndef SWITCH_TAKES_ARG
508 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
511 /* This defines which multi-letter switches take arguments. */
513 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
514 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
515 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
516 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
517 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
518 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
519 || !strcmp (STR, "isystem") || !strcmp (STR, "specs"))
521 #ifndef WORD_SWITCH_TAKES_ARG
522 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
526 #ifdef HAVE_EXECUTABLE_SUFFIX
527 /* This defines which switches stop a full compilation. */
528 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
529 ((CHAR) == 'c' || (CHAR) == 'S')
531 #ifndef SWITCH_CURTAILS_COMPILATION
532 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
533 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
537 /* Record the mapping from file suffixes for compilation specs. */
541 char *suffix; /* Use this compiler for input files
542 whose names end in this suffix. */
544 char *spec[4]; /* To use this compiler, concatenate these
545 specs and pass to do_spec. */
548 /* Pointer to a vector of `struct compiler' that gives the spec for
549 compiling a file, based on its suffix.
550 A file that does not end in any of these suffixes will be passed
551 unchanged to the loader and nothing else will be done to it.
553 An entry containing two 0s is used to terminate the vector.
555 If multiple entries match a file, the last matching one is used. */
557 static struct compiler *compilers;
559 /* Number of entries in `compilers', not counting the null terminator. */
561 static int n_compilers;
563 /* The default list of file name suffixes and their compilation specs. */
565 static struct compiler default_compilers[] =
567 /* Add lists of suffixes of known languages here. If those languages
568 were not present when we built the driver, we will hit these copies
569 and be given a more meaningful error than "file not used since
570 linking is not done". */
571 {".m", {"#Objective-C"}},
572 {".cc", {"#C++"}}, {".cxx", {"#C++"}}, {".cpp", {"#C++"}},
573 {".c++", {"#C++"}}, {".C", {"#C++"}},
574 {".ads", {"#Ada"}}, {".adb", {"#Ada"}}, {".ada", {"#Ada"}},
575 {".f", {"#Fortran"}}, {".for", {"#Fortran"}}, {".F", {"#Fortran"}},
576 {".fpp", {"#Fortran"}},
577 {".p", {"#Pascal"}}, {".pas", {"#Pascal"}},
578 /* Next come the entries for C. */
583 "%{E|M|MM:cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\
584 %{C} %{v} %{A*} %{I*} %{P} %I\
585 %{C:%{!E:%eGNU C does not support -C without using -E}}\
586 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
587 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
588 %{ansi|std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\
589 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
590 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
591 %{traditional} %{ftraditional:-traditional}\
592 %{traditional-cpp:-traditional}\
593 %{fleading-underscore} %{fno-leading-underscore}\
594 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
595 %i %{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}}\n}\
596 %{!E:%{!M:%{!MM:cc1 %i %1 \
597 %{std*} %{nostdinc*} %{A*} %{I*} %I\
598 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
599 %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
600 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
601 %{ansi|std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\
602 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
603 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
604 %{H} %C %{D*} %{U*} %{i*} %Z\
605 %{ftraditional:-traditional}\
606 %{traditional-cpp:-traditional}\
607 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
608 %{aux-info*} %{Qn:-fno-ident}\
610 %{g*} %{O*} %{W*} %{w} %{pedantic*}\
611 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
612 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
614 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
615 %{!pipe:%g.s} %A\n }}}}"
617 #else /* ! USE_CPPLIB */
618 "cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\
619 %{C} %{v} %{A*} %{I*} %{P} %I\
620 %{C:%{!E:%eGNU C does not support -C without using -E}}\
621 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
622 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
623 %{ansi|std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\
624 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
625 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
626 %{traditional} %{ftraditional:-traditional}\
627 %{traditional-cpp:-traditional}\
628 %{fleading-underscore} %{fno-leading-underscore}\
629 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
630 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
631 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
632 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
633 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*}\
634 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
635 %{aux-info*} %{Qn:-fno-ident}\
637 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
638 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
640 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
641 %{!pipe:%g.s} %A\n }}}}"
643 #endif /* ! USE_CPPLIB */
645 {"%{E:cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\
646 %{C} %{v} %{A*} %{I*} %{P} %I\
647 %{C:%{!E:%eGNU C does not support -C without using -E}}\
648 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
649 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
650 %{ansi|std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\
651 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
652 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
653 %{traditional} %{ftraditional:-traditional}\
654 %{traditional-cpp:-traditional}\
655 %{fleading-underscore} %{fno-leading-underscore}\
656 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
658 %{!E:%e-E required when input is from standard input}"}},
659 {".h", {"@c-header"}},
661 {"%{!E:%eCompilation of header file requested} \
662 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
663 %{C:%{!E:%eGNU C does not support -C without using -E}}\
664 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
665 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
666 %{std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\
667 %{!undef:%{!std=*:%p}%{std=gnu*:%p} %P} %{trigraphs}\
668 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
669 %{traditional} %{ftraditional:-traditional}\
670 %{traditional-cpp:-traditional}\
671 %{fleading-underscore} %{fno-leading-underscore}\
672 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
674 {".i", {"@cpp-output"}},
676 {"%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
677 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*}\
678 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
679 %{aux-info*} %{Qn:-fno-ident}\
680 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
681 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
683 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
684 %{!pipe:%g.s} %A\n }}}}"}},
685 {".s", {"@assembler"}},
687 {"%{!M:%{!MM:%{!E:%{!S:as %a %Y\
688 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
690 {".S", {"@assembler-with-cpp"}},
691 {"@assembler-with-cpp",
692 {"cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
693 %{C:%{!E:%eGNU C does not support -C without using -E}}\
694 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
695 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
696 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
697 %{traditional} %{ftraditional:-traditional}\
698 %{traditional-cpp:-traditional}\
699 %{fleading-underscore} %{fno-leading-underscore}\
700 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
701 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
702 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
703 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
704 %{!pipe:%g.s} %A\n }}}}"}},
706 /* Mark end of table */
710 /* Number of elements in default_compilers, not counting the terminator. */
712 static int n_default_compilers
713 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
715 /* Here is the spec for running the linker, after compiling all files. */
717 /* -u* was put back because both BSD and SysV seem to support it. */
718 /* %{static:} simply prevents an error message if the target machine
719 doesn't handle -static. */
720 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
721 scripts which exist in user specified directories, or in standard
723 #ifdef LINK_COMMAND_SPEC
724 /* Provide option to override link_command_spec from machine specific
725 configuration files. */
726 static char *link_command_spec =
729 #ifdef LINK_LIBGCC_SPECIAL
730 /* Don't generate -L options. */
731 static char *link_command_spec = "\
733 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
734 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
735 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
737 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
738 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
743 static char *link_command_spec = "\
745 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
746 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
747 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
748 %{static:} %{L*} %D %o\
749 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
750 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
756 /* A vector of options to give to the linker.
757 These options are accumulated by %x,
758 and substituted into the linker command with %X. */
759 static int n_linker_options;
760 static char **linker_options;
762 /* A vector of options to give to the assembler.
763 These options are accumulated by -Wa,
764 and substituted into the assembler command with %Y. */
765 static int n_assembler_options;
766 static char **assembler_options;
768 /* A vector of options to give to the preprocessor.
769 These options are accumulated by -Wp,
770 and substituted into the preprocessor command with %Z. */
771 static int n_preprocessor_options;
772 static char **preprocessor_options;
774 /* Define how to map long options into short ones. */
776 /* This structure describes one mapping. */
779 /* The long option's name. */
781 /* The equivalent short option. */
783 /* Argument info. A string of flag chars; NULL equals no options.
784 a => argument required.
785 o => argument optional.
786 j => join argument to equivalent, making one word.
787 * => require other text after NAME as an argument. */
791 /* This is the table of mappings. Mappings are tried sequentially
792 for each option encountered; the first one that matches, wins. */
794 struct option_map option_map[] =
796 {"--all-warnings", "-Wall", 0},
797 {"--ansi", "-ansi", 0},
798 {"--assemble", "-S", 0},
799 {"--assert", "-A", "a"},
800 {"--classpath", "-fclasspath=", "aj"},
801 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
802 {"--comments", "-C", 0},
803 {"--compile", "-c", 0},
804 {"--debug", "-g", "oj"},
805 {"--define-macro", "-D", "aj"},
806 {"--dependencies", "-M", 0},
807 {"--dump", "-d", "a"},
808 {"--dumpbase", "-dumpbase", "a"},
809 {"--entry", "-e", 0},
810 {"--extra-warnings", "-W", 0},
811 {"--for-assembler", "-Wa", "a"},
812 {"--for-linker", "-Xlinker", "a"},
813 {"--force-link", "-u", "a"},
814 {"--imacros", "-imacros", "a"},
815 {"--include", "-include", "a"},
816 {"--include-barrier", "-I-", 0},
817 {"--include-directory", "-I", "aj"},
818 {"--include-directory-after", "-idirafter", "a"},
819 {"--include-prefix", "-iprefix", "a"},
820 {"--include-with-prefix", "-iwithprefix", "a"},
821 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
822 {"--include-with-prefix-after", "-iwithprefix", "a"},
823 {"--language", "-x", "a"},
824 {"--library-directory", "-L", "a"},
825 {"--machine", "-m", "aj"},
826 {"--machine-", "-m", "*j"},
827 {"--no-line-commands", "-P", 0},
828 {"--no-precompiled-includes", "-noprecomp", 0},
829 {"--no-standard-includes", "-nostdinc", 0},
830 {"--no-standard-libraries", "-nostdlib", 0},
831 {"--no-warnings", "-w", 0},
832 {"--optimize", "-O", "oj"},
833 {"--output", "-o", "a"},
834 {"--output-class-directory", "-foutput-class-dir=", "ja"},
835 {"--pedantic", "-pedantic", 0},
836 {"--pedantic-errors", "-pedantic-errors", 0},
837 {"--pipe", "-pipe", 0},
838 {"--prefix", "-B", "a"},
839 {"--preprocess", "-E", 0},
840 {"--print-search-dirs", "-print-search-dirs", 0},
841 {"--print-file-name", "-print-file-name=", "aj"},
842 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
843 {"--print-missing-file-dependencies", "-MG", 0},
844 {"--print-multi-lib", "-print-multi-lib", 0},
845 {"--print-multi-directory", "-print-multi-directory", 0},
846 {"--print-prog-name", "-print-prog-name=", "aj"},
847 {"--profile", "-p", 0},
848 {"--profile-blocks", "-a", 0},
849 {"--quiet", "-q", 0},
850 {"--save-temps", "-save-temps", 0},
851 {"--shared", "-shared", 0},
852 {"--silent", "-q", 0},
853 {"--specs", "-specs=", "aj"},
854 {"--static", "-static", 0},
855 {"--std", "-std=", "aj"},
856 {"--symbolic", "-symbolic", 0},
857 {"--target", "-b", "a"},
858 {"--trace-includes", "-H", 0},
859 {"--traditional", "-traditional", 0},
860 {"--traditional-cpp", "-traditional-cpp", 0},
861 {"--trigraphs", "-trigraphs", 0},
862 {"--undefine-macro", "-U", "aj"},
863 {"--use-version", "-V", "a"},
864 {"--user-dependencies", "-MM", 0},
865 {"--verbose", "-v", 0},
866 {"--version", "-dumpversion", 0},
867 {"--warn-", "-W", "*j"},
868 {"--write-dependencies", "-MD", 0},
869 {"--write-user-dependencies", "-MMD", 0},
873 /* Translate the options described by *ARGCP and *ARGVP.
874 Make a new vector and store it back in *ARGVP,
875 and store its length in *ARGVC. */
878 translate_options (argcp, argvp)
884 char **argv = *argvp;
885 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
889 newv[newindex++] = argv[i++];
893 /* Translate -- options. */
894 if (argv[i][0] == '-' && argv[i][1] == '-')
897 /* Find a mapping that applies to this option. */
898 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
900 size_t optlen = strlen (option_map[j].name);
901 size_t arglen = strlen (argv[i]);
902 size_t complen = arglen > optlen ? optlen : arglen;
903 char *arginfo = option_map[j].arg_info;
908 if (!strncmp (argv[i], option_map[j].name, complen))
916 k < sizeof (option_map) / sizeof (option_map[0]);
918 if (strlen (option_map[k].name) >= arglen
919 && !strncmp (argv[i], option_map[k].name, arglen))
921 error ("Ambiguous abbreviation %s", argv[i]);
925 if (k != sizeof (option_map) / sizeof (option_map[0]))
931 /* If the option has an argument, accept that. */
932 if (argv[i][optlen] == '=')
933 arg = argv[i] + optlen + 1;
935 /* If this mapping requires extra text at end of name,
936 accept that as "argument". */
937 else if (index (arginfo, '*') != 0)
938 arg = argv[i] + optlen;
940 /* Otherwise, extra text at end means mismatch.
941 Try other mappings. */
946 else if (index (arginfo, '*') != 0)
948 error ("Incomplete `%s' option", option_map[j].name);
952 /* Handle arguments. */
953 if (index (arginfo, 'a') != 0)
959 error ("Missing argument to `%s' option",
967 else if (index (arginfo, '*') != 0)
969 else if (index (arginfo, 'o') == 0)
972 error ("Extraneous argument to `%s' option",
977 /* Store the translation as one argv elt or as two. */
978 if (arg != 0 && index (arginfo, 'j') != 0)
979 newv[newindex++] = concat (option_map[j].equivalent, arg,
983 newv[newindex++] = option_map[j].equivalent;
984 newv[newindex++] = arg;
987 newv[newindex++] = option_map[j].equivalent;
995 /* Handle old-fashioned options--just copy them through,
996 with their arguments. */
997 else if (argv[i][0] == '-')
999 char *p = argv[i] + 1;
1003 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1004 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1005 else if (WORD_SWITCH_TAKES_ARG (p))
1006 nskip += WORD_SWITCH_TAKES_ARG (p);
1007 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
1010 else if (! strcmp (p, "Xlinker"))
1013 /* Watch out for an option at the end of the command line that
1014 is missing arguments, and avoid skipping past the end of the
1016 if (nskip + i > argc)
1021 newv[newindex++] = argv[i++];
1026 /* Ordinary operands, or +e options. */
1027 newv[newindex++] = argv[i++];
1040 #ifdef HAVE_STRERROR
1049 if (e > 0 && e < sys_nerr)
1050 return sys_errlist[e];
1062 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1063 be considered whitespace. */
1064 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1066 else if (*p == '\n' || *p == ' ' || *p == '\t')
1070 while (*p != '\n') p++;
1080 /* Structure to keep track of the specs that have been defined so far.
1081 These are accessed using %(specname) or %[specname] in a compiler
1086 /* The following 2 fields must be first */
1087 /* to allow EXTRA_SPECS to be initialized */
1088 char *name; /* name of the spec. */
1089 char *ptr; /* available ptr if no static pointer */
1091 /* The following fields are not initialized */
1092 /* by EXTRA_SPECS */
1093 char **ptr_spec; /* pointer to the spec itself. */
1094 struct spec_list *next; /* Next spec in linked list. */
1095 int name_len; /* length of the name */
1096 int alloc_p; /* whether string was allocated */
1099 #define INIT_STATIC_SPEC(NAME,PTR) \
1100 { NAME, NULL_PTR, PTR, (struct spec_list *)0, sizeof (NAME)-1, 0 }
1102 /* List of statically defined specs */
1103 static struct spec_list static_specs[] = {
1104 INIT_STATIC_SPEC ("asm", &asm_spec),
1105 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1106 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1107 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1108 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1109 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1110 INIT_STATIC_SPEC ("link", &link_spec),
1111 INIT_STATIC_SPEC ("lib", &lib_spec),
1112 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1113 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1114 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1115 INIT_STATIC_SPEC ("signed_char", &signed_char_spec),
1116 INIT_STATIC_SPEC ("predefines", &cpp_predefines),
1117 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1118 INIT_STATIC_SPEC ("version", &compiler_version),
1119 INIT_STATIC_SPEC ("multilib", &multilib_select),
1120 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1121 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1122 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1123 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1126 #ifdef EXTRA_SPECS /* additional specs needed */
1127 /* Structure to keep track of just the first two args of a spec_list.
1128 That is all that the EXTRA_SPECS macro gives us. */
1135 static struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1136 static struct spec_list * extra_specs = (struct spec_list *)0;
1139 /* List of dynamically allocates specs that have been defined so far. */
1141 static struct spec_list *specs = (struct spec_list *)0;
1144 /* Initialize the specs lookup routines. */
1149 struct spec_list *next = (struct spec_list *)0;
1150 struct spec_list *sl = (struct spec_list *)0;
1154 return; /* already initialized */
1157 notice ("Using builtin specs.\n");
1160 extra_specs = (struct spec_list *)
1161 xmalloc (sizeof(struct spec_list) *
1162 (sizeof(extra_specs_1)/sizeof(extra_specs_1[0])));
1163 bzero ((PTR) extra_specs, sizeof(struct spec_list) *
1164 (sizeof(extra_specs_1)/sizeof(extra_specs_1[0])));
1166 for (i = (sizeof(extra_specs_1) / sizeof(extra_specs_1[0])) - 1; i >= 0; i--)
1168 sl = &extra_specs[i];
1169 sl->name = extra_specs_1[i].name;
1170 sl->ptr = extra_specs_1[i].ptr;
1172 sl->name_len = strlen (sl->name);
1173 sl->ptr_spec = &sl->ptr;
1178 for (i = (sizeof (static_specs) / sizeof (static_specs[0])) - 1; i >= 0; i--)
1180 sl = &static_specs[i];
1189 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1190 removed; If the spec starts with a + then SPEC is added to the end of the
1194 set_spec (name, spec)
1198 struct spec_list *sl;
1200 int name_len = strlen (name);
1203 /* If this is the first call, initialize the statically allocated specs */
1206 struct spec_list *next = (struct spec_list *)0;
1207 for (i = (sizeof (static_specs) / sizeof (static_specs[0])) - 1;
1210 sl = &static_specs[i];
1217 /* See if the spec already exists */
1218 for (sl = specs; sl; sl = sl->next)
1219 if (name_len == sl->name_len && !strcmp (sl->name, name))
1224 /* Not found - make it */
1225 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1226 sl->name = save_string (name, strlen (name));
1227 sl->name_len = name_len;
1228 sl->ptr_spec = &sl->ptr;
1230 *(sl->ptr_spec) = "";
1235 old_spec = *(sl->ptr_spec);
1236 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1237 ? concat (old_spec, spec + 1, NULL_PTR)
1238 : save_string (spec, strlen (spec)));
1242 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1245 /* Free the old spec */
1246 if (old_spec && sl->alloc_p)
1252 /* Accumulate a command (program name and args), and run it. */
1254 /* Vector of pointers to arguments in the current line of specifications. */
1256 static char **argbuf;
1258 /* Number of elements allocated in argbuf. */
1260 static int argbuf_length;
1262 /* Number of elements in argbuf currently in use (containing args). */
1264 static int argbuf_index;
1266 /* We want this on by default all the time now. */
1267 #define MKTEMP_EACH_FILE
1269 #ifdef MKTEMP_EACH_FILE
1271 extern char *make_temp_file PROTO((char *));
1273 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1276 static struct temp_name {
1277 char *suffix; /* suffix associated with the code. */
1278 int length; /* strlen (suffix). */
1279 int unique; /* Indicates whether %g or %u/%U was used. */
1280 char *filename; /* associated filename. */
1281 int filename_length; /* strlen (filename). */
1282 struct temp_name *next;
1287 /* Number of commands executed so far. */
1289 static int execution_count;
1291 /* Number of commands that exited with a signal. */
1293 static int signal_count;
1295 /* Name with which this program was invoked. */
1297 static char *programname;
1299 /* Structures to keep track of prefixes to try when looking for files. */
1303 char *prefix; /* String to prepend to the path. */
1304 struct prefix_list *next; /* Next in linked list. */
1305 int require_machine_suffix; /* Don't use without machine_suffix. */
1306 /* 2 means try both machine_suffix and just_machine_suffix. */
1307 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1312 struct prefix_list *plist; /* List of prefixes to try */
1313 int max_len; /* Max length of a prefix in PLIST */
1314 char *name; /* Name of this list (used in config stuff) */
1317 /* List of prefixes to try when looking for executables. */
1319 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1321 /* List of prefixes to try when looking for startup (crt0) files. */
1323 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1325 /* List of prefixes to try when looking for include files. */
1327 static struct path_prefix include_prefixes = { 0, 0, "include" };
1329 /* Suffix to attach to directories searched for commands.
1330 This looks like `MACHINE/VERSION/'. */
1332 static char *machine_suffix = 0;
1334 /* Suffix to attach to directories searched for commands.
1335 This is just `MACHINE/'. */
1337 static char *just_machine_suffix = 0;
1339 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1341 static char *gcc_exec_prefix;
1343 /* Default prefixes to attach to command names. */
1345 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1346 #undef MD_EXEC_PREFIX
1347 #undef MD_STARTFILE_PREFIX
1348 #undef MD_STARTFILE_PREFIX_1
1351 #ifndef STANDARD_EXEC_PREFIX
1352 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1353 #endif /* !defined STANDARD_EXEC_PREFIX */
1355 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1356 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1357 #ifdef MD_EXEC_PREFIX
1358 static char *md_exec_prefix = MD_EXEC_PREFIX;
1361 #ifndef STANDARD_STARTFILE_PREFIX
1362 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1363 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1365 #ifdef MD_STARTFILE_PREFIX
1366 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1368 #ifdef MD_STARTFILE_PREFIX_1
1369 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1371 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1372 static char *standard_startfile_prefix_1 = "/lib/";
1373 static char *standard_startfile_prefix_2 = "/usr/lib/";
1375 #ifndef TOOLDIR_BASE_PREFIX
1376 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1378 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1379 static char *tooldir_prefix;
1381 /* Subdirectory to use for locating libraries. Set by
1382 set_multilib_dir based on the compilation options. */
1384 static char *multilib_dir;
1386 /* Clear out the vector of arguments (after a command is executed). */
1394 /* Add one argument to the vector at the end.
1395 This is done when a space is seen or at the end of the line.
1396 If DELETE_ALWAYS is nonzero, the arg is a filename
1397 and the file should be deleted eventually.
1398 If DELETE_FAILURE is nonzero, the arg is a filename
1399 and the file should be deleted if this compilation fails. */
1402 store_arg (arg, delete_always, delete_failure)
1404 int delete_always, delete_failure;
1406 if (argbuf_index + 1 == argbuf_length)
1408 = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1410 argbuf[argbuf_index++] = arg;
1411 argbuf[argbuf_index] = 0;
1413 if (delete_always || delete_failure)
1414 record_temp_file (arg, delete_always, delete_failure);
1417 /* Read compilation specs from a file named FILENAME,
1418 replacing the default ones.
1420 A suffix which starts with `*' is a definition for
1421 one of the machine-specific sub-specs. The "suffix" should be
1422 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1423 The corresponding spec is stored in asm_spec, etc.,
1424 rather than in the `compilers' vector.
1426 Anything invalid in the file is a fatal error. */
1429 read_specs (filename, main_p)
1435 struct stat statbuf;
1440 notice ("Reading specs from %s\n", filename);
1442 /* Open and stat the file. */
1443 desc = open (filename, O_RDONLY, 0);
1445 pfatal_with_name (filename);
1446 if (stat (filename, &statbuf) < 0)
1447 pfatal_with_name (filename);
1449 /* Read contents of file into BUFFER. */
1450 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1451 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1453 pfatal_with_name (filename);
1454 buffer[readlen] = 0;
1457 /* Scan BUFFER for specs, putting them in the vector. */
1463 char *in, *out, *p1, *p2, *p3;
1465 /* Advance P in BUFFER to the next nonblank nocomment line. */
1466 p = skip_whitespace (p);
1470 /* Is this a special command that starts with '%'? */
1471 /* Don't allow this for the main specs file, since it would
1472 encourage people to overwrite it. */
1473 if (*p == '%' && !main_p)
1476 while (*p && *p != '\n')
1479 p++; /* Skip '\n' */
1481 if (!strncmp (p1, "%include", sizeof ("%include")-1)
1482 && (p1[sizeof "%include" - 1] == ' '
1483 || p1[sizeof "%include" - 1] == '\t'))
1487 p1 += sizeof ("%include");
1488 while (*p1 == ' ' || *p1 == '\t')
1491 if (*p1++ != '<' || p[-2] != '>')
1492 fatal ("specs %%include syntax malformed after %ld characters",
1493 (long) (p1 - buffer + 1));
1496 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1497 read_specs (new_filename ? new_filename : p1, FALSE);
1500 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
1501 && (p1[sizeof "%include_noerr" - 1] == ' '
1502 || p1[sizeof "%include_noerr" - 1] == '\t'))
1506 p1 += sizeof "%include_noerr";
1507 while (*p1 == ' ' || *p1 == '\t') p1++;
1509 if (*p1++ != '<' || p[-2] != '>')
1510 fatal ("specs %%include syntax malformed after %ld characters",
1511 (long) (p1 - buffer + 1));
1514 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1516 read_specs (new_filename, FALSE);
1517 else if (verbose_flag)
1518 notice ("Could not find specs file %s\n", p1);
1521 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
1522 && (p1[sizeof "%rename" - 1] == ' '
1523 || p1[sizeof "%rename" - 1] == '\t'))
1526 struct spec_list *sl;
1528 /* Get original name */
1529 p1 += sizeof "%rename";
1530 while (*p1 == ' ' || *p1 == '\t')
1533 if (! ISALPHA ((unsigned char)*p1))
1534 fatal ("specs %%rename syntax malformed after %ld characters",
1535 (long) (p1 - buffer));
1538 while (*p2 && !ISSPACE ((unsigned char)*p2))
1541 if (*p2 != ' ' && *p2 != '\t')
1542 fatal ("specs %%rename syntax malformed after %ld characters",
1543 (long) (p2 - buffer));
1547 while (*p2 == ' ' || *p2 == '\t')
1550 if (! ISALPHA ((unsigned char)*p2))
1551 fatal ("specs %%rename syntax malformed after %ld characters",
1552 (long) (p2 - buffer));
1554 /* Get new spec name */
1556 while (*p3 && !ISSPACE ((unsigned char)*p3))
1560 fatal ("specs %%rename syntax malformed after %ld characters",
1561 (long) (p3 - buffer));
1564 for (sl = specs; sl; sl = sl->next)
1565 if (name_len == sl->name_len && !strcmp (sl->name, p1))
1569 fatal ("specs %s spec was not found to be renamed", p1);
1571 if (strcmp (p1, p2) == 0)
1576 notice ("rename spec %s to %s\n", p1, p2);
1578 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
1582 set_spec (p2, *(sl->ptr_spec));
1584 free (*(sl->ptr_spec));
1586 *(sl->ptr_spec) = "";
1591 fatal ("specs unknown %% command after %ld characters",
1592 (long) (p1 - buffer));
1595 /* Find the colon that should end the suffix. */
1597 while (*p1 && *p1 != ':' && *p1 != '\n')
1600 /* The colon shouldn't be missing. */
1602 fatal ("specs file malformed after %ld characters",
1603 (long) (p1 - buffer));
1605 /* Skip back over trailing whitespace. */
1607 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
1610 /* Copy the suffix to a string. */
1611 suffix = save_string (p, p2 - p);
1612 /* Find the next line. */
1613 p = skip_whitespace (p1 + 1);
1615 fatal ("specs file malformed after %ld characters",
1616 (long) (p - buffer));
1619 /* Find next blank line or end of string. */
1620 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
1623 /* Specs end at the blank line and do not include the newline. */
1624 spec = save_string (p, p1 - p);
1627 /* Delete backslash-newline sequences from the spec. */
1632 if (in[0] == '\\' && in[1] == '\n')
1634 else if (in[0] == '#')
1635 while (*in && *in != '\n')
1643 if (suffix[0] == '*')
1645 if (! strcmp (suffix, "*link_command"))
1646 link_command_spec = spec;
1648 set_spec (suffix + 1, spec);
1652 /* Add this pair to the vector. */
1654 = ((struct compiler *)
1655 xrealloc (compilers,
1656 (n_compilers + 2) * sizeof (struct compiler)));
1658 compilers[n_compilers].suffix = suffix;
1659 bzero ((char *) compilers[n_compilers].spec,
1660 sizeof compilers[n_compilers].spec);
1661 compilers[n_compilers].spec[0] = spec;
1663 bzero ((char *) &compilers[n_compilers],
1664 sizeof compilers[n_compilers]);
1668 link_command_spec = spec;
1671 if (link_command_spec == 0)
1672 fatal ("spec file has no spec for linking");
1675 /* Record the names of temporary files we tell compilers to write,
1676 and delete them at the end of the run. */
1678 /* This is the common prefix we use to make temp file names.
1679 It is chosen once for each run of this program.
1680 It is substituted into a spec by %g.
1681 Thus, all temp file names contain this prefix.
1682 In practice, all temp file names start with this prefix.
1684 This prefix comes from the envvar TMPDIR if it is defined;
1685 otherwise, from the P_tmpdir macro if that is defined;
1686 otherwise, in /usr/tmp or /tmp;
1687 or finally the current directory if all else fails. */
1689 static char *temp_filename;
1691 /* Length of the prefix. */
1693 static int temp_filename_length;
1695 /* Define the list of temporary files to delete. */
1700 struct temp_file *next;
1703 /* Queue of files to delete on success or failure of compilation. */
1704 static struct temp_file *always_delete_queue;
1705 /* Queue of files to delete on failure of compilation. */
1706 static struct temp_file *failure_delete_queue;
1708 /* Record FILENAME as a file to be deleted automatically.
1709 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1710 otherwise delete it in any case.
1711 FAIL_DELETE nonzero means delete it if a compilation step fails;
1712 otherwise delete it in any case. */
1715 record_temp_file (filename, always_delete, fail_delete)
1720 register char *name;
1721 name = xmalloc (strlen (filename) + 1);
1722 strcpy (name, filename);
1726 register struct temp_file *temp;
1727 for (temp = always_delete_queue; temp; temp = temp->next)
1728 if (! strcmp (name, temp->name))
1731 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1732 temp->next = always_delete_queue;
1734 always_delete_queue = temp;
1741 register struct temp_file *temp;
1742 for (temp = failure_delete_queue; temp; temp = temp->next)
1743 if (! strcmp (name, temp->name))
1746 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1747 temp->next = failure_delete_queue;
1749 failure_delete_queue = temp;
1755 /* Delete all the temporary files whose names we previously recorded. */
1758 delete_if_ordinary (name)
1765 printf ("Delete %s? (y or n) ", name);
1769 while ((c = getchar ()) != '\n' && c != EOF)
1772 if (i == 'y' || i == 'Y')
1774 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1775 if (unlink (name) < 0)
1777 perror_with_name (name);
1781 delete_temp_files ()
1783 register struct temp_file *temp;
1785 for (temp = always_delete_queue; temp; temp = temp->next)
1786 delete_if_ordinary (temp->name);
1787 always_delete_queue = 0;
1790 /* Delete all the files to be deleted on error. */
1793 delete_failure_queue ()
1795 register struct temp_file *temp;
1797 for (temp = failure_delete_queue; temp; temp = temp->next)
1798 delete_if_ordinary (temp->name);
1802 clear_failure_queue ()
1804 failure_delete_queue = 0;
1807 /* Routine to add variables to the environment. We do this to pass
1808 the pathname of the gcc driver, and the directories search to the
1809 collect2 program, which is being run as ld. This way, we can be
1810 sure of executing the right compiler when collect2 wants to build
1811 constructors and destructors. Since the environment variables we
1812 use come from an obstack, we don't have to worry about allocating
1821 #ifndef VMS /* nor about VMS */
1823 extern char **environ;
1824 char **old_environ = environ;
1828 int str_len = strlen (str);
1832 while ((ch = *p++) != '\0' && ch != '=')
1838 /* Search for replacing an existing environment variable, and
1839 count the number of total environment variables. */
1840 for (envp = old_environ; *envp; envp++)
1843 if (!strncmp (str, *envp, name_len))
1850 /* Add a new environment variable */
1851 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1853 memcpy ((char *) (environ + 1), (char *) old_environ,
1854 sizeof (char *) * (num_envs+1));
1859 #endif /* HAVE_PUTENV */
1862 /* Build a list of search directories from PATHS.
1863 PREFIX is a string to prepend to the list.
1864 If CHECK_DIR_P is non-zero we ensure the directory exists.
1865 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1866 It is also used by the --print-search-dirs flag. */
1869 build_search_list (paths, prefix, check_dir_p)
1870 struct path_prefix *paths;
1874 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1876 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1877 int first_time = TRUE;
1878 struct prefix_list *pprefix;
1880 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1882 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1884 int len = strlen (pprefix->prefix);
1888 || is_directory (pprefix->prefix, machine_suffix, 0)))
1891 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1894 obstack_grow (&collect_obstack, pprefix->prefix, len);
1895 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1898 if (just_machine_suffix
1899 && pprefix->require_machine_suffix == 2
1901 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1904 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1907 obstack_grow (&collect_obstack, pprefix->prefix, len);
1908 obstack_grow (&collect_obstack, just_machine_suffix,
1912 if (! pprefix->require_machine_suffix)
1915 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1918 obstack_grow (&collect_obstack, pprefix->prefix, len);
1922 obstack_1grow (&collect_obstack, '\0');
1923 return obstack_finish (&collect_obstack);
1926 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1930 putenv_from_prefixes (paths, env_var)
1931 struct path_prefix *paths;
1934 putenv (build_search_list (paths, env_var, 1));
1937 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1938 access to check permissions.
1939 Return 0 if not found, otherwise return its name, allocated with malloc. */
1942 find_a_file (pprefix, name, mode)
1943 struct path_prefix *pprefix;
1948 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1949 struct prefix_list *pl;
1950 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1952 #ifdef DEFAULT_ASSEMBLER
1953 if (! strcmp(name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0) {
1954 name = DEFAULT_ASSEMBLER;
1955 len = strlen(name)+1;
1956 temp = xmalloc (len);
1957 strcpy (temp, name);
1962 #ifdef DEFAULT_LINKER
1963 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0) {
1964 name = DEFAULT_LINKER;
1965 len = strlen(name)+1;
1966 temp = xmalloc (len);
1967 strcpy (temp, name);
1973 len += strlen (machine_suffix);
1975 temp = xmalloc (len);
1977 /* Determine the filename to execute (special case for absolute paths). */
1979 if (*name == '/' || *name == DIR_SEPARATOR
1980 /* Check for disk name on MS-DOS-based systems. */
1981 || (DIR_SEPARATOR == '\\' && name[1] == ':'
1982 && (name[2] == DIR_SEPARATOR || name[2] == '/')))
1984 if (access (name, mode) == 0)
1986 strcpy (temp, name);
1991 for (pl = pprefix->plist; pl; pl = pl->next)
1995 /* Some systems have a suffix for executable files.
1996 So try appending that first. */
1997 if (file_suffix[0] != 0)
1999 strcpy (temp, pl->prefix);
2000 strcat (temp, machine_suffix);
2001 strcat (temp, name);
2002 strcat (temp, file_suffix);
2003 if (access (temp, mode) == 0)
2005 if (pl->used_flag_ptr != 0)
2006 *pl->used_flag_ptr = 1;
2011 /* Now try just the name. */
2012 strcpy (temp, pl->prefix);
2013 strcat (temp, machine_suffix);
2014 strcat (temp, name);
2015 if (access (temp, mode) == 0)
2017 if (pl->used_flag_ptr != 0)
2018 *pl->used_flag_ptr = 1;
2023 /* Certain prefixes are tried with just the machine type,
2024 not the version. This is used for finding as, ld, etc. */
2025 if (just_machine_suffix && pl->require_machine_suffix == 2)
2027 /* Some systems have a suffix for executable files.
2028 So try appending that first. */
2029 if (file_suffix[0] != 0)
2031 strcpy (temp, pl->prefix);
2032 strcat (temp, just_machine_suffix);
2033 strcat (temp, name);
2034 strcat (temp, file_suffix);
2035 if (access (temp, mode) == 0)
2037 if (pl->used_flag_ptr != 0)
2038 *pl->used_flag_ptr = 1;
2043 strcpy (temp, pl->prefix);
2044 strcat (temp, just_machine_suffix);
2045 strcat (temp, name);
2046 if (access (temp, mode) == 0)
2048 if (pl->used_flag_ptr != 0)
2049 *pl->used_flag_ptr = 1;
2054 /* Certain prefixes can't be used without the machine suffix
2055 when the machine or version is explicitly specified. */
2056 if (! pl->require_machine_suffix)
2058 /* Some systems have a suffix for executable files.
2059 So try appending that first. */
2060 if (file_suffix[0] != 0)
2062 strcpy (temp, pl->prefix);
2063 strcat (temp, name);
2064 strcat (temp, file_suffix);
2065 if (access (temp, mode) == 0)
2067 if (pl->used_flag_ptr != 0)
2068 *pl->used_flag_ptr = 1;
2073 strcpy (temp, pl->prefix);
2074 strcat (temp, name);
2075 if (access (temp, mode) == 0)
2077 if (pl->used_flag_ptr != 0)
2078 *pl->used_flag_ptr = 1;
2088 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
2089 at the start of the list, otherwise it goes at the end.
2091 If WARN is nonzero, we will warn if no file is found
2092 through this prefix. WARN should point to an int
2093 which will be set to 1 if this entry is used.
2095 COMPONENT is the value to be passed to update_path.
2097 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2098 the complete value of machine_suffix.
2099 2 means try both machine_suffix and just_machine_suffix. */
2102 add_prefix (pprefix, prefix, component, first, require_machine_suffix, warn)
2103 struct path_prefix *pprefix;
2105 const char *component;
2107 int require_machine_suffix;
2110 struct prefix_list *pl, **prev;
2113 if (! first && pprefix->plist)
2115 for (pl = pprefix->plist; pl->next; pl = pl->next)
2120 prev = &pprefix->plist;
2122 /* Keep track of the longest prefix */
2124 prefix = update_path (prefix, component);
2125 len = strlen (prefix);
2126 if (len > pprefix->max_len)
2127 pprefix->max_len = len;
2129 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
2130 pl->prefix = save_string (prefix, len);
2131 pl->require_machine_suffix = require_machine_suffix;
2132 pl->used_flag_ptr = warn;
2139 pl->next = (struct prefix_list *) 0;
2143 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
2146 unused_prefix_warnings (pprefix)
2147 struct path_prefix *pprefix;
2149 struct prefix_list *pl = pprefix->plist;
2153 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
2155 if (pl->require_machine_suffix && machine_suffix)
2156 error ("file path prefix `%s%s' never used", pl->prefix,
2159 error ("file path prefix `%s' never used", pl->prefix);
2161 /* Prevent duplicate warnings. */
2162 *pl->used_flag_ptr = 1;
2170 /* Execute the command specified by the arguments on the current line of spec.
2171 When using pipes, this includes several piped-together commands
2172 with `|' between them.
2174 Return 0 if successful, -1 if failed. */
2180 int n_commands; /* # of command. */
2184 char *prog; /* program name. */
2185 char **argv; /* vector of args. */
2186 int pid; /* pid of process for this command. */
2189 struct command *commands; /* each command buffer with above info. */
2191 /* Count # of piped commands. */
2192 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2193 if (strcmp (argbuf[i], "|") == 0)
2196 /* Get storage for each command. */
2198 = (struct command *) alloca (n_commands * sizeof (struct command));
2200 /* Split argbuf into its separate piped processes,
2201 and record info about each one.
2202 Also search for the programs that are to be run. */
2204 commands[0].prog = argbuf[0]; /* first command. */
2205 commands[0].argv = &argbuf[0];
2206 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2209 commands[0].argv[0] = string;
2211 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2212 if (strcmp (argbuf[i], "|") == 0)
2213 { /* each command. */
2214 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2215 fatal ("-pipe not supported");
2217 argbuf[i] = 0; /* termination of command args. */
2218 commands[n_commands].prog = argbuf[i + 1];
2219 commands[n_commands].argv = &argbuf[i + 1];
2220 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2222 commands[n_commands].argv[0] = string;
2226 argbuf[argbuf_index] = 0;
2228 /* If -v, print what we are about to do, and maybe query. */
2232 /* For help listings, put a blank line between sub-processes. */
2233 if (print_help_list)
2234 fputc ('\n', stderr);
2236 /* Print each piped command as a separate line. */
2237 for (i = 0; i < n_commands ; i++)
2241 for (j = commands[i].argv; *j; j++)
2242 fprintf (stderr, " %s", *j);
2244 /* Print a pipe symbol after all but the last command. */
2245 if (i + 1 != n_commands)
2246 fprintf (stderr, " |");
2247 fprintf (stderr, "\n");
2251 notice ("\nGo ahead? (y or n) ");
2255 while (getchar () != '\n')
2258 if (i != 'y' && i != 'Y')
2263 /* Run each piped subprocess. */
2265 for (i = 0; i < n_commands; i++)
2267 char *errmsg_fmt, *errmsg_arg;
2268 char *string = commands[i].argv[0];
2270 commands[i].pid = pexecute (string, commands[i].argv,
2271 programname, temp_filename,
2272 &errmsg_fmt, &errmsg_arg,
2273 ((i == 0 ? PEXECUTE_FIRST : 0)
2274 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2275 | (string == commands[i].prog
2276 ? PEXECUTE_SEARCH : 0)
2277 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2279 if (commands[i].pid == -1)
2280 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2282 if (string != commands[i].prog)
2288 /* Wait for all the subprocesses to finish.
2289 We don't care what order they finish in;
2290 we know that N_COMMANDS waits will get them all.
2291 Ignore subprocesses that we don't know about,
2292 since they can be spawned by the process that exec'ed us. */
2297 for (i = 0; i < n_commands; )
2303 pid = pwait (commands[i].pid, &status, 0);
2307 for (j = 0; j < n_commands; j++)
2308 if (commands[j].pid == pid)
2313 if (WIFSIGNALED (status))
2315 fatal ("Internal compiler error: program %s got fatal signal %d",
2316 commands[j].prog, WTERMSIG (status));
2320 else if (WIFEXITED (status)
2321 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2331 /* Find all the switches given to us
2332 and make a vector describing them.
2333 The elements of the vector are strings, one per switch given.
2334 If a switch uses following arguments, then the `part1' field
2335 is the switch itself and the `args' field
2336 is a null-terminated vector containing the following arguments.
2337 The `live_cond' field is 1 if the switch is true in a conditional spec,
2338 -1 if false (overridden by a later switch), and is initialized to zero.
2339 The `validated' field is nonzero if any spec has looked at this switch;
2340 if it remains zero at the end of the run, it must be meaningless. */
2350 static struct switchstr *switches;
2352 static int n_switches;
2360 /* Also a vector of input files specified. */
2362 static struct infile *infiles;
2364 static int n_infiles;
2366 /* This counts the number of libraries added by LANG_SPECIFIC_DRIVER, so that
2367 we can tell if there were any user supplied any files or libraries. */
2369 static int added_libraries;
2371 /* And a vector of corresponding output files is made up later. */
2373 static char **outfiles;
2375 /* Used to track if none of the -B paths are used. */
2378 /* Used to track if standard path isn't used and -b or -V is specified. */
2379 static int warn_std;
2381 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2382 static int *warn_std_ptr = 0;
2385 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2387 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2388 is true if we should look for an executable suffix as well. */
2391 convert_filename (name, do_exe)
2401 len = strlen (name);
2403 #ifdef HAVE_OBJECT_SUFFIX
2404 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2406 && name[len - 2] == '.'
2407 && name[len - 1] == 'o')
2409 obstack_grow (&obstack, name, len - 2);
2410 obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2411 name = obstack_finish (&obstack);
2415 #ifdef HAVE_EXECUTABLE_SUFFIX
2416 /* If there is no filetype, make it the executable suffix (which includes
2417 the "."). But don't get confused if we have just "-o". */
2418 if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2421 for (i = len - 1; i >= 0; i--)
2422 if (name[i] == '/' || name[i] == DIR_SEPARATOR)
2425 for (i++; i < len; i++)
2429 obstack_grow (&obstack, name, len);
2430 obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX));
2431 name = obstack_finish (&obstack);
2438 /* Display the command line switches accepted by gcc. */
2442 printf ("Usage: %s [options] file...\n", programname);
2443 printf ("Options:\n");
2445 printf (" --help Display this information\n");
2447 printf (" (Use '-v --help' to display command line options of sub-processes)\n");
2448 printf (" -dumpspecs Display all of the built in spec strings\n");
2449 printf (" -dumpversion Display the version of the compiler\n");
2450 printf (" -dumpmachine Display the compiler's target processor\n");
2451 printf (" -print-search-dirs Display the directories in the compiler's search path\n");
2452 printf (" -print-libgcc-file-name Display the name of the compiler's companion library\n");
2453 printf (" -print-file-name=<lib> Display the full path to library <lib>\n");
2454 printf (" -print-prog-name=<prog> Display the full path to compiler component <prog>\n");
2455 printf (" -print-multi-directory Display the root directory for versions of libgcc\n");
2456 printf (" -print-multi-lib Display the mapping between command line options and\n");
2457 printf (" multiple library search directories\n");
2458 printf (" -Wa,<options> Pass comma-separated <options> on to the assembler\n");
2459 printf (" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n");
2460 printf (" -Wl,<options> Pass comma-separated <options> on to the linker\n");
2461 printf (" -Xlinker <arg> Pass <arg> on to the linker\n");
2462 printf (" -save-temps Do not delete intermediate files\n");
2463 printf (" -pipe Use pipes rather than intermediate files\n");
2464 printf (" -specs=<file> Override builtin specs with the contents of <file>\n");
2465 printf (" -std=<standard> Assume that the input sources are for <standard>\n");
2466 printf (" -B <directory> Add <directory> to the compiler's search paths\n");
2467 printf (" -b <machine> Run gcc for target <machine>, if installed\n");
2468 printf (" -V <version> Run gcc version number <version>, if installed\n");
2469 printf (" -v Display the programs invoked by the compiler\n");
2470 printf (" -E Preprocess only; do not compile, assemble or link\n");
2471 printf (" -S Compile only; do not assemble or link\n");
2472 printf (" -c Compile and assemble, but do not link\n");
2473 printf (" -o <file> Place the output into <file>\n");
2474 printf (" -x <language> Specify the language of the following input files\n");
2475 printf (" Permissable languages include: c c++ assembler none\n");
2476 printf (" 'none' means revert to the default behaviour of\n");
2477 printf (" guessing the language based on the file's extension\n");
2479 printf ("\nOptions starting with -g, -f, -m, -O or -W are automatically passed on to\n");
2480 printf ("the various sub-processes invoked by %s. In order to pass other options\n",
2482 printf ("on to these processes the -W<letter> options must be used.\n");
2484 /* The rest of the options are displayed by invocations of the various
2489 add_preprocessor_option (option, len)
2493 n_preprocessor_options++;
2495 if (! preprocessor_options)
2496 preprocessor_options
2497 = (char **) xmalloc (n_preprocessor_options * sizeof (char *));
2499 preprocessor_options
2500 = (char **) xrealloc (preprocessor_options,
2501 n_preprocessor_options * sizeof (char *));
2503 preprocessor_options [n_preprocessor_options - 1] = save_string (option, len);
2507 add_assembler_option (option, len)
2511 n_assembler_options++;
2513 if (! assembler_options)
2515 = (char **) xmalloc (n_assembler_options * sizeof (char *));
2518 = (char **) xrealloc (assembler_options,
2519 n_assembler_options * sizeof (char *));
2521 assembler_options [n_assembler_options - 1] = save_string (option, len);
2525 add_linker_option (option, len)
2531 if (! linker_options)
2533 = (char **) xmalloc (n_linker_options * sizeof (char *));
2536 = (char **) xrealloc (linker_options,
2537 n_linker_options * sizeof (char *));
2539 linker_options [n_linker_options - 1] = save_string (option, len);
2542 /* Create the vector `switches' and its contents.
2543 Store its length in `n_switches'. */
2546 process_command (argc, argv)
2552 char *spec_lang = 0;
2553 int last_language_n_infiles;
2556 int lang_n_infiles = 0;
2558 GET_ENV_PATH_LIST (gcc_exec_prefix, "GCC_EXEC_PREFIX");
2562 added_libraries = 0;
2564 /* Figure compiler version from version string. */
2566 compiler_version = save_string (version_string, strlen (version_string));
2567 for (temp = compiler_version; *temp; ++temp)
2576 /* Set up the default search paths. */
2578 if (gcc_exec_prefix)
2580 int len = strlen (gcc_exec_prefix);
2581 if (len > (int) sizeof ("/lib/gcc-lib/")-1
2582 && (gcc_exec_prefix[len-1] == '/'
2583 || gcc_exec_prefix[len-1] == DIR_SEPARATOR))
2585 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1;
2586 if ((*temp == '/' || *temp == DIR_SEPARATOR)
2587 && strncmp (temp+1, "lib", 3) == 0
2588 && (temp[4] == '/' || temp[4] == DIR_SEPARATOR)
2589 && strncmp (temp+5, "gcc-lib", 7) == 0)
2590 len -= sizeof ("/lib/gcc-lib/") - 1;
2593 set_std_prefix (gcc_exec_prefix, len);
2594 add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC", 0, 0, NULL_PTR);
2595 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC", 0, 0, NULL_PTR);
2598 /* COMPILER_PATH and LIBRARY_PATH have values
2599 that are lists of directory names with colons. */
2601 GET_ENV_PATH_LIST (temp, "COMPILER_PATH");
2604 char *startp, *endp;
2605 char *nstore = (char *) alloca (strlen (temp) + 3);
2607 startp = endp = temp;
2610 if (*endp == PATH_SEPARATOR || *endp == 0)
2612 strncpy (nstore, startp, endp-startp);
2614 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2615 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2617 nstore[endp-startp] = DIR_SEPARATOR;
2618 nstore[endp-startp+1] = 0;
2621 nstore[endp-startp] = 0;
2622 add_prefix (&exec_prefixes, nstore, 0, 0, 0, NULL_PTR);
2623 add_prefix (&include_prefixes,
2624 concat (nstore, "include", NULL_PTR),
2628 endp = startp = endp + 1;
2635 GET_ENV_PATH_LIST (temp, "LIBRARY_PATH");
2636 if (temp && *cross_compile == '0')
2638 char *startp, *endp;
2639 char *nstore = (char *) alloca (strlen (temp) + 3);
2641 startp = endp = temp;
2644 if (*endp == PATH_SEPARATOR || *endp == 0)
2646 strncpy (nstore, startp, endp-startp);
2648 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2649 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2651 nstore[endp-startp] = DIR_SEPARATOR;
2652 nstore[endp-startp+1] = 0;
2655 nstore[endp-startp] = 0;
2656 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
2660 endp = startp = endp + 1;
2667 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2668 GET_ENV_PATH_LIST (temp, "LPATH");
2669 if (temp && *cross_compile == '0')
2671 char *startp, *endp;
2672 char *nstore = (char *) alloca (strlen (temp) + 3);
2674 startp = endp = temp;
2677 if (*endp == PATH_SEPARATOR || *endp == 0)
2679 strncpy (nstore, startp, endp-startp);
2681 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2682 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2684 nstore[endp-startp] = DIR_SEPARATOR;
2685 nstore[endp-startp+1] = 0;
2688 nstore[endp-startp] = 0;
2689 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
2693 endp = startp = endp + 1;
2700 /* Convert new-style -- options to old-style. */
2701 translate_options (&argc, &argv);
2703 #ifdef LANG_SPECIFIC_DRIVER
2704 /* Do language-specific adjustment/addition of flags. */
2705 lang_specific_driver (fatal, &argc, &argv, &added_libraries);
2708 /* Scan argv twice. Here, the first time, just count how many switches
2709 there will be in their vector, and how many input files in theirs.
2710 Here we also parse the switches that cc itself uses (e.g. -v). */
2712 for (i = 1; i < argc; i++)
2714 if (! strcmp (argv[i], "-dumpspecs"))
2716 struct spec_list *sl;
2718 for (sl = specs; sl; sl = sl->next)
2719 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
2722 else if (! strcmp (argv[i], "-dumpversion"))
2724 printf ("%s\n", spec_version);
2727 else if (! strcmp (argv[i], "-dumpmachine"))
2729 printf ("%s\n", spec_machine);
2732 else if (strcmp (argv[i], "-fhelp") == 0)
2734 /* translate_options () has turned --help into -fhelp. */
2735 print_help_list = 1;
2737 /* We will be passing a dummy file on to the sub-processes. */
2741 add_preprocessor_option ("--help", 6);
2742 add_assembler_option ("--help", 6);
2743 add_linker_option ("--help", 6);
2745 else if (! strcmp (argv[i], "-print-search-dirs"))
2746 print_search_dirs = 1;
2747 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2748 print_file_name = "libgcc.a";
2749 else if (! strncmp (argv[i], "-print-file-name=", 17))
2750 print_file_name = argv[i] + 17;
2751 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2752 print_prog_name = argv[i] + 17;
2753 else if (! strcmp (argv[i], "-print-multi-lib"))
2754 print_multi_lib = 1;
2755 else if (! strcmp (argv[i], "-print-multi-directory"))
2756 print_multi_directory = 1;
2757 else if (! strncmp (argv[i], "-Wa,", 4))
2760 /* Pass the rest of this option to the assembler. */
2762 /* Split the argument at commas. */
2764 for (j = 4; argv[i][j]; j++)
2765 if (argv[i][j] == ',')
2767 add_assembler_option (argv[i] + prev, j - prev);
2771 /* Record the part after the last comma. */
2772 add_assembler_option (argv[i] + prev, j - prev);
2774 else if (! strncmp (argv[i], "-Wp,", 4))
2777 /* Pass the rest of this option to the preprocessor. */
2779 /* Split the argument at commas. */
2781 for (j = 4; argv[i][j]; j++)
2782 if (argv[i][j] == ',')
2784 add_preprocessor_option (argv[i] + prev, j - prev);
2788 /* Record the part after the last comma. */
2789 add_preprocessor_option (argv[i] + prev, j - prev);
2791 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2792 /* The +e options to the C++ front-end. */
2794 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2797 /* Split the argument at commas. */
2798 for (j = 3; argv[i][j]; j++)
2799 n_infiles += (argv[i][j] == ',');
2801 else if (strcmp (argv[i], "-Xlinker") == 0)
2804 fatal ("argument to `-Xlinker' is missing");
2809 else if (strncmp (argv[i], "-l", 2) == 0)
2811 else if (strcmp (argv[i], "-save-temps") == 0)
2813 save_temps_flag = 1;
2816 else if (strcmp (argv[i], "-specs") == 0)
2818 struct user_specs *user = (struct user_specs *)
2819 xmalloc (sizeof (struct user_specs));
2821 fatal ("argument to `-specs' is missing");
2823 user->next = (struct user_specs *)0;
2824 user->filename = argv[i];
2825 if (user_specs_tail)
2826 user_specs_tail->next = user;
2828 user_specs_head = user;
2829 user_specs_tail = user;
2831 else if (strncmp (argv[i], "-specs=", 7) == 0)
2833 struct user_specs *user = (struct user_specs *)
2834 xmalloc (sizeof (struct user_specs));
2835 if (strlen (argv[i]) == 7)
2836 fatal ("argument to `-specs=' is missing");
2838 user->next = (struct user_specs *)0;
2839 user->filename = argv[i]+7;
2840 if (user_specs_tail)
2841 user_specs_tail->next = user;
2843 user_specs_head = user;
2844 user_specs_tail = user;
2846 else if (argv[i][0] == '-' && argv[i][1] != 0)
2848 register char *p = &argv[i][1];
2849 register int c = *p;
2855 if (p[1] == 0 && i + 1 == argc)
2856 fatal ("argument to `-b' is missing");
2858 spec_machine = argv[++i];
2860 spec_machine = p + 1;
2862 warn_std_ptr = &warn_std;
2868 if (p[1] == 0 && i + 1 == argc)
2869 fatal ("argument to `-B' is missing");
2874 add_prefix (&exec_prefixes, value, NULL_PTR, 1, 0, &warn_B);
2875 add_prefix (&startfile_prefixes, value, NULL_PTR,
2877 add_prefix (&include_prefixes, concat (value, "include",
2879 NULL_PTR, 1, 0, NULL_PTR);
2881 /* As a kludge, if the arg is "[foo/]stageN/", just add
2882 "[foo/]include" to the include prefix. */
2884 int len = strlen (value);
2887 && (value[len - 8] == '/'
2888 || value[len - 8] == DIR_SEPARATOR)))
2889 && strncmp (value + len - 7, "stage", 5) == 0
2890 && ISDIGIT (value[len - 2])
2891 && (value[len - 1] == '/'
2892 || value[len - 1] == DIR_SEPARATOR))
2895 add_prefix (&include_prefixes, "include", NULL_PTR,
2899 char *string = xmalloc (len + 1);
2900 strncpy (string, value, len-7);
2901 strcpy (string+len-7, "include");
2902 add_prefix (&include_prefixes, string, NULL_PTR,
2911 case 'v': /* Print our subcommands and print versions. */
2913 /* If they do anything other than exactly `-v', don't set
2914 verbose_flag; rather, continue on to give the error. */
2922 if (p[1] == 0 && i + 1 == argc)
2923 fatal ("argument to `-V' is missing");
2925 spec_version = argv[++i];
2927 spec_version = p + 1;
2928 compiler_version = spec_version;
2929 warn_std_ptr = &warn_std;
2931 /* Validate the version number. Use the same checks
2932 done when inserting it into a spec.
2934 The format of the version string is
2935 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
2937 char *v = compiler_version;
2939 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
2940 while (! ISDIGIT (*v))
2943 if (v > compiler_version && v[-1] != '-')
2944 fatal ("invalid version number format");
2946 /* Set V after the first period. */
2947 while (ISDIGIT (*v))
2951 fatal ("invalid version number format");
2954 while (ISDIGIT (*v))
2957 if (*v != 0 && *v != ' ' && *v != '.' && *v != '-')
2958 fatal ("invalid version number format");
2974 #if defined(HAVE_EXECUTABLE_SUFFIX)
2979 /* Forward scan, just in case -S or -c is specified
2986 if (argv[j][0] == '-')
2988 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
2994 else if (skip = SWITCH_TAKES_ARG (argv[j][1]))
2995 j += skip - (argv[j][2] != 0);
2996 else if (skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1))
3003 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
3005 argv[i+1] = convert_filename (argv[i+1], ! have_c);
3007 argv[i] = convert_filename (argv[i], ! have_c);
3015 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3016 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3017 else if (WORD_SWITCH_TAKES_ARG (p))
3018 i += WORD_SWITCH_TAKES_ARG (p);
3028 if (have_c && have_o && lang_n_infiles > 1)
3029 fatal ("cannot specify -o with -c or -S and multiple compilations");
3031 /* Set up the search paths before we go looking for config files. */
3033 /* These come before the md prefixes so that we will find gcc's subcommands
3034 (such as cpp) rather than those of the host system. */
3035 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3036 as well as trying the machine and the version. */
3038 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3039 0, 2, warn_std_ptr);
3040 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3041 0, 2, warn_std_ptr);
3044 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3045 0, 1, warn_std_ptr);
3046 add_prefix (&startfile_prefixes, standard_exec_prefix_1, "BINUTILS",
3047 0, 1, warn_std_ptr);
3049 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3050 dir_separator_str, NULL_PTR);
3052 /* If tooldir is relative, base it on exec_prefixes. A relative
3053 tooldir lets us move the installed tree as a unit.
3055 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3056 directories, so that we can search both the user specified directory
3057 and the standard place. */
3059 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
3061 if (gcc_exec_prefix)
3063 char *gcc_exec_tooldir_prefix
3064 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
3065 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
3067 add_prefix (&exec_prefixes,
3068 concat (gcc_exec_tooldir_prefix, "bin",
3069 dir_separator_str, NULL_PTR),
3070 NULL_PTR, 0, 0, NULL_PTR);
3071 add_prefix (&startfile_prefixes,
3072 concat (gcc_exec_tooldir_prefix, "lib",
3073 dir_separator_str, NULL_PTR),
3074 NULL_PTR, 0, 0, NULL_PTR);
3077 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
3078 dir_separator_str, spec_version,
3079 dir_separator_str, tooldir_prefix, NULL_PTR);
3082 add_prefix (&exec_prefixes,
3083 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
3084 "BINUTILS", 0, 0, NULL_PTR);
3085 add_prefix (&startfile_prefixes,
3086 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
3087 "BINUTILS", 0, 0, NULL_PTR);
3089 /* More prefixes are enabled in main, after we read the specs file
3090 and determine whether this is cross-compilation or not. */
3093 /* Then create the space for the vectors and scan again. */
3095 switches = ((struct switchstr *)
3096 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
3097 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
3100 last_language_n_infiles = -1;
3102 /* This, time, copy the text of each switch and store a pointer
3103 to the copy in the vector of switches.
3104 Store all the infiles in their vector. */
3106 for (i = 1; i < argc; i++)
3108 /* Just skip the switches that were handled by the preceding loop. */
3109 if (! strncmp (argv[i], "-Wa,", 4))
3111 else if (! strncmp (argv[i], "-Wp,", 4))
3113 else if (! strcmp (argv[i], "-print-search-dirs"))
3115 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3117 else if (! strncmp (argv[i], "-print-file-name=", 17))
3119 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3121 else if (! strcmp (argv[i], "-print-multi-lib"))
3123 else if (! strcmp (argv[i], "-print-multi-directory"))
3125 else if (strcmp (argv[i], "-fhelp") == 0)
3129 /* Create a dummy input file, so that we can pass --help on to
3130 the various sub-processes. */
3131 infiles[n_infiles].language = "c";
3132 infiles[n_infiles++].name = "help-dummy";
3134 /* Preserve the --help switch so that it can be caught by the
3136 switches[n_switches].part1 = "--help";
3137 switches[n_switches].args = 0;
3138 switches[n_switches].live_cond = 0;
3139 switches[n_switches].validated = 0;
3144 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3146 /* Compensate for the +e options to the C++ front-end;
3147 they're there simply for cfront call-compatibility. We do
3148 some magic in default_compilers to pass them down properly.
3149 Note we deliberately start at the `+' here, to avoid passing
3150 -e0 or -e1 down into the linker. */
3151 switches[n_switches].part1 = &argv[i][0];
3152 switches[n_switches].args = 0;
3153 switches[n_switches].live_cond = 0;
3154 switches[n_switches].validated = 0;
3157 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3160 /* Split the argument at commas. */
3162 for (j = 4; argv[i][j]; j++)
3163 if (argv[i][j] == ',')
3165 infiles[n_infiles].language = "*";
3166 infiles[n_infiles++].name
3167 = save_string (argv[i] + prev, j - prev);
3170 /* Record the part after the last comma. */
3171 infiles[n_infiles].language = "*";
3172 infiles[n_infiles++].name = argv[i] + prev;
3174 else if (strcmp (argv[i], "-Xlinker") == 0)
3176 infiles[n_infiles].language = "*";
3177 infiles[n_infiles++].name = argv[++i];
3179 else if (strncmp (argv[i], "-l", 2) == 0)
3181 infiles[n_infiles].language = "*";
3182 infiles[n_infiles++].name = argv[i];
3184 else if (strcmp (argv[i], "-specs") == 0)
3186 else if (strncmp (argv[i], "-specs=", 7) == 0)
3188 /* -save-temps overrides -pipe, so that temp files are produced */
3189 else if (save_temps_flag && strcmp (argv[i], "-pipe") == 0)
3190 error ("Warning: -pipe ignored since -save-temps specified");
3191 else if (argv[i][0] == '-' && argv[i][1] != 0)
3193 register char *p = &argv[i][1];
3194 register int c = *p;
3198 if (p[1] == 0 && i + 1 == argc)
3199 fatal ("argument to `-x' is missing");
3201 spec_lang = argv[++i];
3204 if (! strcmp (spec_lang, "none"))
3205 /* Suppress the warning if -xnone comes after the last input
3206 file, because alternate command interfaces like g++ might
3207 find it useful to place -xnone after each input file. */
3210 last_language_n_infiles = n_infiles;
3213 switches[n_switches].part1 = p;
3214 /* Deal with option arguments in separate argv elements. */
3215 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
3216 || WORD_SWITCH_TAKES_ARG (p))
3219 int n_args = WORD_SWITCH_TAKES_ARG (p);
3223 /* Count only the option arguments in separate argv elements. */
3224 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
3226 if (i + n_args >= argc)
3227 fatal ("argument to `-%s' is missing", p);
3228 switches[n_switches].args
3229 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
3231 switches[n_switches].args[j++] = argv[++i];
3232 /* Null-terminate the vector. */
3233 switches[n_switches].args[j] = 0;
3235 else if (index (switches_need_spaces, c))
3237 /* On some systems, ld cannot handle some options without
3238 a space. So split the option from its argument. */
3239 char *part1 = (char *) xmalloc (2);
3243 switches[n_switches].part1 = part1;
3244 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
3245 switches[n_switches].args[0] = xmalloc (strlen (p));
3246 strcpy (switches[n_switches].args[0], &p[1]);
3247 switches[n_switches].args[1] = 0;
3250 switches[n_switches].args = 0;
3252 switches[n_switches].live_cond = 0;
3253 switches[n_switches].validated = 0;
3254 /* This is always valid, since gcc.c itself understands it. */
3255 if (!strcmp (p, "save-temps"))
3256 switches[n_switches].validated = 1;
3259 char ch = switches[n_switches].part1[0];
3260 if (ch == 'V' || ch == 'b' || ch == 'B')
3261 switches[n_switches].validated = 1;
3267 #ifdef HAVE_OBJECT_SUFFIX
3268 argv[i] = convert_filename (argv[i], 0);
3271 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
3273 perror_with_name (argv[i]);
3278 infiles[n_infiles].language = spec_lang;
3279 infiles[n_infiles++].name = argv[i];
3284 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3285 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
3287 switches[n_switches].part1 = 0;
3288 infiles[n_infiles].name = 0;
3291 /* Process a spec string, accumulating and running commands. */
3293 /* These variables describe the input file name.
3294 input_file_number is the index on outfiles of this file,
3295 so that the output file name can be stored for later use by %o.
3296 input_basename is the start of the part of the input file
3297 sans all directory names, and basename_length is the number
3298 of characters starting there excluding the suffix .c or whatever. */
3300 char *input_filename;
3301 static int input_file_number;
3302 size_t input_filename_length;
3303 static int basename_length;
3304 static char *input_basename;
3305 static char *input_suffix;
3307 /* These are variables used within do_spec and do_spec_1. */
3309 /* Nonzero if an arg has been started and not yet terminated
3310 (with space, tab or newline). */
3311 static int arg_going;
3313 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3314 is a temporary file name. */
3315 static int delete_this_arg;
3317 /* Nonzero means %w has been seen; the next arg to be terminated
3318 is the output file name of this compilation. */
3319 static int this_is_output_file;
3321 /* Nonzero means %s has been seen; the next arg to be terminated
3322 is the name of a library file and we should try the standard
3323 search dirs for it. */
3324 static int this_is_library_file;
3326 /* Nonzero means that the input of this command is coming from a pipe. */
3327 static int input_from_pipe;
3329 /* Process the spec SPEC and run the commands specified therein.
3330 Returns 0 if the spec is successfully processed; -1 if failed. */
3340 delete_this_arg = 0;
3341 this_is_output_file = 0;
3342 this_is_library_file = 0;
3343 input_from_pipe = 0;
3345 value = do_spec_1 (spec, 0, NULL_PTR);
3347 /* Force out any unfinished command.
3348 If -pipe, this forces out the last command if it ended in `|'. */
3351 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3354 if (argbuf_index > 0)
3361 /* Process the sub-spec SPEC as a portion of a larger spec.
3362 This is like processing a whole spec except that we do
3363 not initialize at the beginning and we do not supply a
3364 newline by default at the end.
3365 INSWITCH nonzero means don't process %-sequences in SPEC;
3366 in this case, % is treated as an ordinary character.
3367 This is used while substituting switches.
3368 INSWITCH nonzero also causes SPC not to terminate an argument.
3370 Value is zero unless a line was finished
3371 and the command on that line reported an error. */
3374 do_spec_1 (spec, inswitch, soft_matched_part)
3377 char *soft_matched_part;
3379 register char *p = spec;
3386 /* If substituting a switch, treat all chars like letters.
3387 Otherwise, NL, SPC, TAB and % are special. */
3388 switch (inswitch ? 'a' : c)
3391 /* End of line: finish any pending argument,
3392 then run the pending command if one has been started. */
3395 obstack_1grow (&obstack, 0);
3396 string = obstack_finish (&obstack);
3397 if (this_is_library_file)
3398 string = find_file (string);
3399 store_arg (string, delete_this_arg, this_is_output_file);
3400 if (this_is_output_file)
3401 outfiles[input_file_number] = string;
3405 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3407 for (i = 0; i < n_switches; i++)
3408 if (!strcmp (switches[i].part1, "pipe"))
3411 /* A `|' before the newline means use a pipe here,
3412 but only if -pipe was specified.
3413 Otherwise, execute now and don't pass the `|' as an arg. */
3416 input_from_pipe = 1;
3417 switches[i].validated = 1;
3424 if (argbuf_index > 0)
3430 /* Reinitialize for a new command, and for a new argument. */
3433 delete_this_arg = 0;
3434 this_is_output_file = 0;
3435 this_is_library_file = 0;
3436 input_from_pipe = 0;
3440 /* End any pending argument. */
3443 obstack_1grow (&obstack, 0);
3444 string = obstack_finish (&obstack);
3445 if (this_is_library_file)
3446 string = find_file (string);
3447 store_arg (string, delete_this_arg, this_is_output_file);
3448 if (this_is_output_file)
3449 outfiles[input_file_number] = string;
3453 obstack_1grow (&obstack, c);
3459 /* Space or tab ends an argument if one is pending. */
3462 obstack_1grow (&obstack, 0);
3463 string = obstack_finish (&obstack);
3464 if (this_is_library_file)
3465 string = find_file (string);
3466 store_arg (string, delete_this_arg, this_is_output_file);
3467 if (this_is_output_file)
3468 outfiles[input_file_number] = string;
3470 /* Reinitialize for a new argument. */
3472 delete_this_arg = 0;
3473 this_is_output_file = 0;
3474 this_is_library_file = 0;
3481 fatal ("Invalid specification! Bug in cc.");
3484 obstack_grow (&obstack, input_basename, basename_length);
3489 delete_this_arg = 2;
3492 /* Dump out the directories specified with LIBRARY_PATH,
3493 followed by the absolute directories
3494 that we search for startfiles. */
3497 struct prefix_list *pl = startfile_prefixes.plist;
3498 size_t bufsize = 100;
3499 char *buffer = (char *) xmalloc (bufsize);
3502 for (; pl; pl = pl->next)
3504 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3505 /* Used on systems which record the specified -L dirs
3506 and use them to search for dynamic linking. */
3507 /* Relative directories always come from -B,
3508 and it is better not to use them for searching
3509 at run time. In particular, stage1 loses */
3510 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3513 /* Try subdirectory if there is one. */
3514 if (multilib_dir != NULL)
3518 if (strlen (pl->prefix) + strlen (machine_suffix)
3520 bufsize = (strlen (pl->prefix)
3521 + strlen (machine_suffix)) * 2 + 1;
3522 buffer = (char *) xrealloc (buffer, bufsize);
3523 strcpy (buffer, pl->prefix);
3524 strcat (buffer, machine_suffix);
3525 if (is_directory (buffer, multilib_dir, 1))
3527 do_spec_1 ("-L", 0, NULL_PTR);
3528 #ifdef SPACE_AFTER_L_OPTION
3529 do_spec_1 (" ", 0, NULL_PTR);
3531 do_spec_1 (buffer, 1, NULL_PTR);
3532 do_spec_1 (multilib_dir, 1, NULL_PTR);
3533 /* Make this a separate argument. */
3534 do_spec_1 (" ", 0, NULL_PTR);
3537 if (!pl->require_machine_suffix)
3539 if (is_directory (pl->prefix, multilib_dir, 1))
3541 do_spec_1 ("-L", 0, NULL_PTR);
3542 #ifdef SPACE_AFTER_L_OPTION
3543 do_spec_1 (" ", 0, NULL_PTR);
3545 do_spec_1 (pl->prefix, 1, NULL_PTR);
3546 do_spec_1 (multilib_dir, 1, NULL_PTR);
3547 /* Make this a separate argument. */
3548 do_spec_1 (" ", 0, NULL_PTR);
3554 if (is_directory (pl->prefix, machine_suffix, 1))
3556 do_spec_1 ("-L", 0, NULL_PTR);
3557 #ifdef SPACE_AFTER_L_OPTION
3558 do_spec_1 (" ", 0, NULL_PTR);
3560 do_spec_1 (pl->prefix, 1, NULL_PTR);
3561 /* Remove slash from machine_suffix. */
3562 if (strlen (machine_suffix) >= bufsize)
3563 bufsize = strlen (machine_suffix) * 2 + 1;
3564 buffer = (char *) xrealloc (buffer, bufsize);
3565 strcpy (buffer, machine_suffix);
3566 idx = strlen (buffer);
3567 if (buffer[idx - 1] == '/'
3568 || buffer[idx - 1] == DIR_SEPARATOR)
3569 buffer[idx - 1] = 0;
3570 do_spec_1 (buffer, 1, NULL_PTR);
3571 /* Make this a separate argument. */
3572 do_spec_1 (" ", 0, NULL_PTR);
3575 if (!pl->require_machine_suffix)
3577 if (is_directory (pl->prefix, "", 1))
3579 do_spec_1 ("-L", 0, NULL_PTR);
3580 #ifdef SPACE_AFTER_L_OPTION
3581 do_spec_1 (" ", 0, NULL_PTR);
3583 /* Remove slash from pl->prefix. */
3584 if (strlen (pl->prefix) >= bufsize)
3585 bufsize = strlen (pl->prefix) * 2 + 1;
3586 buffer = (char *) xrealloc (buffer, bufsize);
3587 strcpy (buffer, pl->prefix);
3588 idx = strlen (buffer);
3589 if (buffer[idx - 1] == '/'
3590 || buffer[idx - 1] == DIR_SEPARATOR)
3591 buffer[idx - 1] = 0;
3592 do_spec_1 (buffer, 1, NULL_PTR);
3593 /* Make this a separate argument. */
3594 do_spec_1 (" ", 0, NULL_PTR);
3603 /* %efoo means report an error with `foo' as error message
3604 and don't execute any more commands for this file. */
3608 while (*p != 0 && *p != '\n') p++;
3609 buf = (char *) alloca (p - q + 1);
3610 strncpy (buf, q, p - q);
3620 if (save_temps_flag)
3622 obstack_grow (&obstack, input_basename, basename_length);
3623 delete_this_arg = 0;
3627 #ifdef MKTEMP_EACH_FILE
3628 /* ??? This has a problem: the total number of
3629 values mktemp can return is limited.
3630 That matters for the names of object files.
3631 In 2.4, do something about that. */
3632 struct temp_name *t;
3636 if (p[0] == '%' && p[1] == 'O')
3639 /* We don't support extra suffix characters after %O. */
3640 if (*p == '.' || ISALPHA ((unsigned char)*p))
3642 suffix = OBJECT_SUFFIX;
3643 suffix_length = strlen (OBJECT_SUFFIX);
3647 while (*p == '.' || ISALPHA ((unsigned char)*p))
3649 suffix_length = p - suffix;
3652 /* See if we already have an association of %g/%u/%U and
3654 for (t = temp_names; t; t = t->next)
3655 if (t->length == suffix_length
3656 && strncmp (t->suffix, suffix, suffix_length) == 0
3657 && t->unique == (c != 'g'))
3660 /* Make a new association if needed. %u requires one. */
3661 if (t == 0 || c == 'u')
3665 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3666 t->next = temp_names;
3669 t->length = suffix_length;
3670 t->suffix = save_string (suffix, suffix_length);
3671 t->unique = (c != 'g');
3672 temp_filename = make_temp_file (t->suffix);
3673 temp_filename_length = strlen (temp_filename);
3674 t->filename = temp_filename;
3675 t->filename_length = temp_filename_length;
3678 obstack_grow (&obstack, t->filename, t->filename_length);
3679 delete_this_arg = 1;
3681 obstack_grow (&obstack, temp_filename, temp_filename_length);
3682 if (c == 'u' || c == 'U')
3688 sprintf (buff, "%d", unique);
3689 obstack_grow (&obstack, buff, strlen (buff));
3692 delete_this_arg = 1;
3698 obstack_grow (&obstack, input_filename, input_filename_length);
3704 struct prefix_list *pl = include_prefixes.plist;
3706 if (gcc_exec_prefix)
3708 do_spec_1 ("-iprefix", 1, NULL_PTR);
3709 /* Make this a separate argument. */
3710 do_spec_1 (" ", 0, NULL_PTR);
3711 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3712 do_spec_1 (" ", 0, NULL_PTR);
3715 for (; pl; pl = pl->next)
3717 do_spec_1 ("-isystem", 1, NULL_PTR);
3718 /* Make this a separate argument. */
3719 do_spec_1 (" ", 0, NULL_PTR);
3720 do_spec_1 (pl->prefix, 1, NULL_PTR);
3721 do_spec_1 (" ", 0, NULL_PTR);
3728 int max = n_infiles;
3729 #ifdef LANG_SPECIFIC_DRIVER
3730 max += lang_specific_extra_outfiles;
3732 for (i = 0; i < max; i++)
3734 store_arg (outfiles[i], 0, 0);
3739 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3744 this_is_library_file = 1;
3748 this_is_output_file = 1;
3753 int cur_index = argbuf_index;
3754 /* Handle the {...} following the %W. */
3757 p = handle_braces (p + 1);
3760 /* If any args were output, mark the last one for deletion
3762 if (argbuf_index != cur_index)
3763 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3767 /* %x{OPTION} records OPTION for %X to output. */
3773 /* Skip past the option value and make a copy. */
3778 string = save_string (p1 + 1, p - p1 - 2);
3780 /* See if we already recorded this option. */
3781 for (i = 0; i < n_linker_options; i++)
3782 if (! strcmp (string, linker_options[i]))
3788 /* This option is new; add it. */
3789 add_linker_option (string, strlen (string));
3793 /* Dump out the options accumulated previously using %x. */
3795 for (i = 0; i < n_linker_options; i++)
3797 do_spec_1 (linker_options[i], 1, NULL_PTR);
3798 /* Make each accumulated option a separate argument. */
3799 do_spec_1 (" ", 0, NULL_PTR);
3803 /* Dump out the options accumulated previously using -Wa,. */
3805 for (i = 0; i < n_assembler_options; i++)
3807 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3808 /* Make each accumulated option a separate argument. */
3809 do_spec_1 (" ", 0, NULL_PTR);
3813 /* Dump out the options accumulated previously using -Wp,. */
3815 for (i = 0; i < n_preprocessor_options; i++)
3817 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3818 /* Make each accumulated option a separate argument. */
3819 do_spec_1 (" ", 0, NULL_PTR);
3823 /* Here are digits and numbers that just process
3824 a certain constant string as a spec. */
3827 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3833 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3839 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3845 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3851 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3857 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3863 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3869 value = do_spec_1 (link_spec, 0, NULL_PTR);
3875 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3881 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3888 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3892 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3896 if (! strncmp (y, "-D", 2))
3897 /* Copy the whole option. */
3898 while (*y && *y != ' ' && *y != '\t')
3900 else if (*y == ' ' || *y == '\t')
3901 /* Copy whitespace to the result. */
3903 /* Don't copy other options. */
3910 value = do_spec_1 (buf, 0, NULL_PTR);
3918 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3922 /* Copy all of CPP_PREDEFINES into BUF,
3923 but put __ after every -D and at the end of each arg. */
3927 if (! strncmp (y, "-D", 2))
3936 && ! ISUPPER ((unsigned char)*(y+1))))
3938 /* Stick __ at front of macro name. */
3941 /* Arrange to stick __ at the end as well. */
3945 /* Copy the macro name. */
3946 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3955 /* Copy the value given, if any. */
3956 while (*y && *y != ' ' && *y != '\t')
3959 else if (*y == ' ' || *y == '\t')
3960 /* Copy whitespace to the result. */
3962 /* Don't copy -A options */
3968 /* Copy all of CPP_PREDEFINES into BUF,
3969 but put __ after every -D. */
3973 if (! strncmp (y, "-D", 2))
3979 && ! ISUPPER ((unsigned char)*(y+1))))
3981 /* Stick -D__ at front of macro name. */
3987 /* Copy the macro name. */
3988 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3991 /* Copy the value given, if any. */
3992 while (*y && *y != ' ' && *y != '\t')
3997 /* Do not copy this macro - we have just done it before */
3998 while (*y && *y != ' ' && *y != '\t')
4002 else if (*y == ' ' || *y == '\t')
4003 /* Copy whitespace to the result. */
4005 /* Don't copy -A options */
4011 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4015 if (! strncmp (y, "-A", 2))
4016 /* Copy the whole option. */
4017 while (*y && *y != ' ' && *y != '\t')
4019 else if (*y == ' ' || *y == '\t')
4020 /* Copy whitespace to the result. */
4022 /* Don't copy other options. */
4029 value = do_spec_1 (buf, 0, NULL_PTR);
4036 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
4041 /* Here we define characters other than letters and digits. */
4044 p = handle_braces (p);
4050 obstack_1grow (&obstack, '%');
4054 do_spec_1 (soft_matched_part, 1, NULL_PTR);
4055 do_spec_1 (" ", 0, NULL_PTR);
4058 /* Process a string found as the value of a spec given by name.
4059 This feature allows individual machine descriptions
4060 to add and use their own specs.
4061 %[...] modifies -D options the way %P does;
4062 %(...) uses the spec unmodified. */
4064 error ("Warning: use of obsolete %%[ operator in specs");
4068 struct spec_list *sl;
4071 /* The string after the S/P is the name of a spec that is to be
4073 while (*p && *p != ')' && *p != ']')
4076 /* See if it's in the list */
4077 for (len = p - name, sl = specs; sl; sl = sl->next)
4078 if (sl->name_len == len && !strncmp (sl->name, name, len))
4080 name = *(sl->ptr_spec);
4082 notice ("Processing spec %c%s%c, which is '%s'\n",
4083 c, sl->name, (c == '(') ? ')' : ']', name);
4092 value = do_spec_1 (name, 0, NULL_PTR);
4098 char *x = (char *) alloca (strlen (name) * 2 + 1);
4103 /* Copy all of NAME into BUF, but put __ after
4104 every -D and at the end of each arg, */
4107 if (! strncmp (y, "-D", 2))
4117 else if (flag && (*y == ' ' || *y == '\t' || *y == '='
4118 || *y == '}' || *y == 0))
4131 value = do_spec_1 (buf, 0, NULL_PTR);
4137 /* Discard the closing paren or bracket. */
4145 int c1 = *p++; /* Select first or second version number. */
4146 char *v = compiler_version;
4149 /* The format of the version string is
4150 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4152 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4153 while (! ISDIGIT (*v))
4155 if (v > compiler_version && v[-1] != '-')
4158 /* If desired, advance to second version number. */
4161 /* Set V after the first period. */
4162 while (ISDIGIT (*v))
4169 /* Set Q at the next period or at the end. */
4171 while (ISDIGIT (*q))
4173 if (*q != 0 && *q != ' ' && *q != '.' && *q != '-')
4176 /* Put that part into the command. */
4177 obstack_grow (&obstack, v, q - v);
4183 if (input_from_pipe)
4184 do_spec_1 ("-", 0, NULL_PTR);
4193 /* Backslash: treat next character as ordinary. */
4198 /* Ordinary character: put it into the current argument. */
4199 obstack_1grow (&obstack, c);
4203 return 0; /* End of string */
4206 /* Return 0 if we call do_spec_1 and that returns -1. */
4212 char *filter, *body = NULL, *endbody;
4216 int include_blanks = 1;
4219 /* A '^' after the open-brace means to not give blanks before args. */
4220 include_blanks = 0, ++p;
4223 /* A `|' after the open-brace means,
4224 if the test fails, output a single minus sign rather than nothing.
4225 This is used in %{|!pipe:...}. */
4229 negate = suffix = 0;
4232 /* A `!' after the open-brace negates the condition:
4233 succeed if the specified switch is not present. */
4237 /* A `.' after the open-brace means test against the current suffix. */
4247 while (*p != ':' && *p != '}' && *p != '|') p++;
4249 if (*p == '|' && pipe_p)
4256 register int count = 1;
4257 register char *q = p;
4259 while (*q++ != ':') continue;
4275 body = p, endbody = p+1;
4280 int found = (input_suffix != 0
4281 && (long) strlen (input_suffix) == (long)(p - filter)
4282 && strncmp (input_suffix, filter, p - filter) == 0);
4288 && do_spec_1 (save_string (body, endbody-body-1), 0, NULL_PTR) < 0)
4291 else if (p[-1] == '*' && p[0] == '}')
4293 /* Substitute all matching switches as separate args. */
4296 for (i = 0; i < n_switches; i++)
4297 if (!strncmp (switches[i].part1, filter, p - filter)
4298 && check_live_switch (i, p - filter))
4299 give_switch (i, 0, include_blanks);
4303 /* Test for presence of the specified switch. */
4307 /* If name specified ends in *, as in {x*:...},
4308 check for %* and handle that case. */
4309 if (p[-1] == '*' && !negate)
4314 /* First see whether we have %*. */
4318 if (*r == '%' && r[1] == '*')
4322 /* If we do, handle that case. */
4325 /* Substitute all matching switches as separate args.
4326 But do this by substituting for %*
4327 in the text that follows the colon. */
4329 unsigned hard_match_len = p - filter - 1;
4330 char *string = save_string (body, endbody - body - 1);
4332 for (i = 0; i < n_switches; i++)
4333 if (!strncmp (switches[i].part1, filter, hard_match_len)
4334 && check_live_switch (i, -1))
4336 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
4337 /* Pass any arguments this switch has. */
4338 give_switch (i, 1, 1);
4341 /* We didn't match. Try again. */
4348 /* If name specified ends in *, as in {x*:...},
4349 check for presence of any switch name starting with x. */
4352 for (i = 0; i < n_switches; i++)
4354 unsigned hard_match_len = p - filter - 1;
4356 if (!strncmp (switches[i].part1, filter, hard_match_len)
4357 && check_live_switch (i, hard_match_len))
4363 /* Otherwise, check for presence of exact name specified. */
4366 for (i = 0; i < n_switches; i++)
4368 if (!strncmp (switches[i].part1, filter, p - filter)
4369 && switches[i].part1[p - filter] == 0
4370 && check_live_switch (i, -1))
4378 /* If it is as desired (present for %{s...}, absent for %{!s...})
4379 then substitute either the switch or the specified
4380 conditional text. */
4381 if (present != negate)
4385 give_switch (i, 0, include_blanks);
4389 if (do_spec_1 (save_string (body, endbody - body - 1),
4396 /* Here if a %{|...} conditional fails: output a minus sign,
4397 which means "standard output" or "standard input". */
4398 do_spec_1 ("-", 0, NULL_PTR);
4403 /* We didn't match; try again. */
4410 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4411 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4412 spec, or -1 if either exact match or %* is used.
4414 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4415 whose value does not begin with "no-" is obsoleted by the same value
4416 with the "no-", similarly for a switch with the "no-" prefix. */
4419 check_live_switch (switchnum, prefix_length)
4423 char *name = switches[switchnum].part1;
4426 /* In the common case of {<at-most-one-letter>*}, a negating
4427 switch would always match, so ignore that case. We will just
4428 send the conflicting switches to the compiler phase. */
4429 if (prefix_length >= 0 && prefix_length <= 1)
4432 /* If we already processed this switch and determined if it was
4433 live or not, return our past determination. */
4434 if (switches[switchnum].live_cond != 0)
4435 return switches[switchnum].live_cond > 0;
4437 /* Now search for duplicate in a manner that depends on the name. */
4441 for (i = switchnum + 1; i < n_switches; i++)
4442 if (switches[i].part1[0] == 'O')
4444 switches[switchnum].validated = 1;
4445 switches[switchnum].live_cond = -1;
4450 case 'W': case 'f': case 'm':
4451 if (! strncmp (name + 1, "no-", 3))
4453 /* We have Xno-YYY, search for XYYY. */
4454 for (i = switchnum + 1; i < n_switches; i++)
4455 if (switches[i].part1[0] == name[0]
4456 && ! strcmp (&switches[i].part1[1], &name[4]))
4458 switches[switchnum].validated = 1;
4459 switches[switchnum].live_cond = -1;
4465 /* We have XYYY, search for Xno-YYY. */
4466 for (i = switchnum + 1; i < n_switches; i++)
4467 if (switches[i].part1[0] == name[0]
4468 && switches[i].part1[1] == 'n'
4469 && switches[i].part1[2] == 'o'
4470 && switches[i].part1[3] == '-'
4471 && !strcmp (&switches[i].part1[4], &name[1]))
4473 switches[switchnum].validated = 1;
4474 switches[switchnum].live_cond = -1;
4481 /* Otherwise the switch is live. */
4482 switches[switchnum].live_cond = 1;
4486 /* Pass a switch to the current accumulating command
4487 in the same form that we received it.
4488 SWITCHNUM identifies the switch; it is an index into
4489 the vector of switches gcc received, which is `switches'.
4490 This cannot fail since it never finishes a command line.
4492 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4494 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
4498 give_switch (switchnum, omit_first_word, include_blanks)
4500 int omit_first_word;
4503 if (!omit_first_word)
4505 do_spec_1 ("-", 0, NULL_PTR);
4506 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4509 if (switches[switchnum].args != 0)
4512 for (p = switches[switchnum].args; *p; p++)
4515 do_spec_1 (" ", 0, NULL_PTR);
4516 do_spec_1 (*p, 1, NULL_PTR);
4520 do_spec_1 (" ", 0, NULL_PTR);
4521 switches[switchnum].validated = 1;
4524 /* Search for a file named NAME trying various prefixes including the
4525 user's -B prefix and some standard ones.
4526 Return the absolute file name found. If nothing is found, return NAME. */
4534 /* Try multilib_dir if it is defined. */
4535 if (multilib_dir != NULL)
4539 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4540 strcpy (try, multilib_dir);
4541 strcat (try, dir_separator_str);
4544 newname = find_a_file (&startfile_prefixes, try, R_OK);
4546 /* If we don't find it in the multi library dir, then fall
4547 through and look for it in the normal places. */
4548 if (newname != NULL)
4552 newname = find_a_file (&startfile_prefixes, name, R_OK);
4553 return newname ? newname : name;
4556 /* Determine whether a directory exists. If LINKER, return 0 for
4557 certain fixed names not needed by the linker. If not LINKER, it is
4558 only important to return 0 if the host machine has a small ARG_MAX
4562 is_directory (path1, path2, linker)
4567 int len1 = strlen (path1);
4568 int len2 = strlen (path2);
4569 char *path = (char *) alloca (3 + len1 + len2);
4573 #ifndef SMALL_ARG_MAX
4578 /* Construct the path from the two parts. Ensure the string ends with "/.".
4579 The resulting path will be a directory even if the given path is a
4581 memcpy (path, path1, len1);
4582 memcpy (path + len1, path2, len2);
4583 cp = path + len1 + len2;
4584 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4585 *cp++ = DIR_SEPARATOR;
4589 /* Exclude directories that the linker is known to search. */
4592 && strcmp (path, concat (dir_separator_str, "lib",
4593 dir_separator_str, ".", NULL_PTR)) == 0)
4595 && strcmp (path, concat (dir_separator_str, "usr",
4596 dir_separator_str, "lib",
4597 dir_separator_str, ".", NULL_PTR)) == 0)))
4600 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4603 /* On fatal signals, delete all the temporary files. */
4606 fatal_error (signum)
4609 signal (signum, SIG_DFL);
4610 delete_failure_queue ();
4611 delete_temp_files ();
4612 /* Get the same signal again, this time not handled,
4613 so its normal effect occurs. */
4614 kill (getpid (), signum);
4625 int linker_was_run = 0;
4626 char *explicit_link_files;
4629 struct user_specs *uptr;
4631 p = argv[0] + strlen (argv[0]);
4632 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4635 #ifdef HAVE_LC_MESSAGES
4636 setlocale (LC_MESSAGES, "");
4638 bindtextdomain (PACKAGE, localedir);
4639 textdomain (PACKAGE);
4641 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4642 signal (SIGINT, fatal_error);
4644 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4645 signal (SIGHUP, fatal_error);
4647 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4648 signal (SIGTERM, fatal_error);
4650 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4651 signal (SIGPIPE, fatal_error);
4655 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4657 obstack_init (&obstack);
4659 /* Build multilib_select, et. al from the separate lines that make up each
4660 multilib selection. */
4662 char **q = multilib_raw;
4665 obstack_init (&multilib_obstack);
4666 while ((p = *q++) != (char *) 0)
4667 obstack_grow (&multilib_obstack, p, strlen (p));
4669 obstack_1grow (&multilib_obstack, 0);
4670 multilib_select = obstack_finish (&multilib_obstack);
4672 q = multilib_matches_raw;
4673 while ((p = *q++) != (char *) 0)
4674 obstack_grow (&multilib_obstack, p, strlen (p));
4676 obstack_1grow (&multilib_obstack, 0);
4677 multilib_matches = obstack_finish (&multilib_obstack);
4681 i < sizeof (multilib_defaults_raw) / sizeof (multilib_defaults_raw[0]);
4685 obstack_1grow (&multilib_obstack, ' ');
4686 obstack_grow (&multilib_obstack,
4687 multilib_defaults_raw[i],
4688 strlen (multilib_defaults_raw[i]));
4692 obstack_1grow (&multilib_obstack, 0);
4693 multilib_defaults = obstack_finish (&multilib_obstack);
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));
4704 #ifdef INIT_ENVIRONMENT
4705 /* Set up any other necessary machine specific environment variables. */
4706 putenv (INIT_ENVIRONMENT);
4709 /* Choose directory for temp files. */
4711 #ifndef MKTEMP_EACH_FILE
4712 temp_filename = choose_temp_base ();
4713 temp_filename_length = strlen (temp_filename);
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. */
4720 process_command (argc, argv);
4725 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4727 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4728 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4731 for (i = 0; (int)i < n_switches; i++)
4736 obstack_grow (&collect_obstack, " ", 1);
4739 obstack_grow (&collect_obstack, "'-", 2);
4740 q = switches[i].part1;
4741 while ((p = index (q,'\'')))
4743 obstack_grow (&collect_obstack, q, p-q);
4744 obstack_grow (&collect_obstack, "'\\''", 4);
4747 obstack_grow (&collect_obstack, q, strlen (q));
4748 obstack_grow (&collect_obstack, "'", 1);
4750 for (args = switches[i].args; args && *args; args++)
4752 obstack_grow (&collect_obstack, " '", 2);
4754 while ((p = index (q,'\'')))
4756 obstack_grow (&collect_obstack, q, p-q);
4757 obstack_grow (&collect_obstack, "'\\''", 4);
4760 obstack_grow (&collect_obstack, q, strlen (q));
4761 obstack_grow (&collect_obstack, "'", 1);
4764 obstack_grow (&collect_obstack, "\0", 1);
4765 putenv (obstack_finish (&collect_obstack));
4768 /* Initialize the vector of specs to just the default.
4769 This means one element containing 0s, as a terminator. */
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;
4776 /* Read specs from a file if there is one. */
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);
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);
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"));
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);
4801 /* Process any user specified specs in the order given on the command
4803 for (uptr = user_specs_head; uptr; uptr = uptr->next)
4805 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
4806 read_specs (filename ? filename : uptr->filename, FALSE);
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')
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);
4820 #ifdef MD_STARTFILE_PREFIX
4821 add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC",
4825 #ifdef MD_STARTFILE_PREFIX_1
4826 add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC",
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 == '$'
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] == '/'))
4844 add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS",
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,
4856 standard_startfile_prefix, NULL_PTR),
4857 NULL_PTR, 0, 0, NULL_PTR);
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);
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);
4877 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4878 if (gcc_exec_prefix)
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;
4891 /* Now we have the specs.
4892 Set the `valid' bits for switches that match anything in any spec. */
4894 validate_all_switches ();
4896 /* Now that we have the switches and the specs, set
4897 the subdirectory based on the options. */
4898 set_multilib_dir ();
4900 /* Warn about any switches that no pass was interested in. */
4902 for (i = 0; (int)i < n_switches; i++)
4903 if (! switches[i].validated)
4904 error ("unrecognized option `-%s'", switches[i].part1);
4906 /* Obey some of the options. */
4908 if (print_search_dirs)
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));
4916 if (print_file_name)
4918 printf ("%s\n", find_file (print_file_name));
4922 if (print_prog_name)
4924 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4925 printf ("%s\n", (newname ? newname : print_prog_name));
4929 if (print_multi_lib)
4931 print_multilib_info ();
4935 if (print_multi_directory)
4937 if (multilib_dir == NULL)
4940 printf ("%s\n", multilib_dir);
4944 if (print_help_list)
4950 printf ("\nReport bugs to egcs-bugs@egcs.cygnus.com.\n");
4951 printf ("Please see the file BUGS (included with the sources) first.\n");
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. */
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] == ' ')
4972 if (! strncmp (version_string, compiler_version, n)
4973 && compiler_version[n] == 0)
4974 notice ("gcc version %s\n", version_string);
4976 notice ("gcc driver version %s executing gcc version %s\n",
4977 version_string, compiler_version);
4983 if (n_infiles == added_libraries)
4984 fatal ("No input files");
4986 /* Make a place to record the compiler output file names
4987 that correspond to the input files. */
4990 #ifdef LANG_SPECIFIC_DRIVER
4991 i += lang_specific_extra_outfiles;
4993 outfiles = (char **) xmalloc (i * sizeof (char *));
4994 bzero ((char *) outfiles, i * sizeof (char *));
4996 /* Record which files were specified explicitly as link input. */
4998 explicit_link_files = xmalloc (n_infiles);
4999 bzero (explicit_link_files, n_infiles);
5001 for (i = 0; (int)i < n_infiles; i++)
5003 register struct compiler *cp = 0;
5004 int this_file_error = 0;
5006 /* Tell do_spec what to substitute for %i. */
5008 input_filename = infiles[i].name;
5009 input_filename_length = strlen (input_filename);
5010 input_file_number = i;
5012 /* Use the same thing in %o, unless cp->spec says otherwise. */
5014 outfiles[i] = input_filename;
5016 /* Figure out which compiler from the file's suffix. */
5018 cp = lookup_compiler (infiles[i].name, input_filename_length,
5019 infiles[i].language);
5023 /* Ok, we found an applicable compiler. Run its spec. */
5024 /* First say how much of input_filename to substitute for %b */
5028 if (cp->spec[0][0] == '#')
5029 error ("%s: %s compiler not installed on this system",
5030 input_filename, &cp->spec[0][1]);
5032 input_basename = input_filename;
5033 for (p = input_filename; *p; p++)
5034 if (*p == '/' || *p == DIR_SEPARATOR)
5035 input_basename = p + 1;
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)
5044 basename_length = p - input_basename;
5045 input_suffix = p + 1;
5051 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
5053 len += strlen (cp->spec[j]);
5055 p = (char *) xmalloc (len + 1);
5058 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
5061 strcpy (p + len, cp->spec[j]);
5062 len += strlen (cp->spec[j]);
5065 value = do_spec (p);
5068 this_file_error = 1;
5071 /* If this file's name does not contain a recognized suffix,
5072 record it as explicit linker input. */
5075 explicit_link_files[i] = 1;
5077 /* Clear the delete-on-failure queue, deleting the files in it
5078 if this compilation failed. */
5080 if (this_file_error)
5082 delete_failure_queue ();
5085 /* If this compilation succeeded, don't delete those files later. */
5086 clear_failure_queue ();
5089 #ifdef LANG_SPECIFIC_DRIVER
5090 if (error_count == 0)
5092 /* Make sure INPUT_FILE_NUMBER points to first available open
5094 input_file_number = n_infiles;
5095 if (lang_specific_pre_link ())
5100 /* Run ld to link all the compiler output files. */
5102 if (error_count == 0)
5104 int tmp = execution_count;
5106 /* We'll use ld if we can't find collect2. */
5107 if (! strcmp (linker_name_spec, "collect2"))
5109 char *s = find_a_file (&exec_prefixes, "collect2", X_OK);
5111 linker_name_spec = "ld";
5113 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5115 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
5116 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
5118 value = do_spec (link_command_spec);
5121 linker_was_run = (tmp != execution_count);
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);
5128 /* If options said don't run linker,
5129 complain about input files to be given to the linker. */
5131 if (! linker_was_run && error_count == 0)
5132 for (i = 0; (int)i < n_infiles; i++)
5133 if (explicit_link_files[i])
5134 error ("%s: linker input file unused since linking not done",
5137 /* Delete some or all of the temporary files we made. */
5140 delete_failure_queue ();
5141 delete_temp_files ();
5143 if (print_help_list)
5145 printf ("\nReport bugs to egcs-bugs@egcs.cygnus.com.\n");
5146 printf ("Please see the file BUGS (included with the sources) first.\n");
5149 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
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. */
5158 static struct compiler *
5159 lookup_compiler (name, length, language)
5164 struct compiler *cp;
5166 /* If this was specified by the user to be a linker input, indicate that. */
5167 if (language != 0 && language[0] == '*')
5170 /* Otherwise, look for the language, if one is spec'd. */
5173 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5174 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
5177 error ("language %s not recognized", language);
5181 /* Look for a suffix. */
5182 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
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. */
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)))
5195 && !strcmp (cp->suffix,
5196 name + length - strlen (cp->suffix))
5200 if (cp->spec[0][0] == '@')
5202 struct compiler *new;
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);
5216 /* A non-alias entry: return it. */
5228 register PTR value = (PTR) malloc (size);
5230 fatal ("virtual memory exhausted");
5235 xrealloc (old, size)
5241 ptr = (PTR) realloc (old, size);
5243 ptr = (PTR) malloc (size);
5245 fatal ("virtual memory exhausted");
5250 save_string (s, len)
5254 register char *result = xmalloc (len + 1);
5256 bcopy (s, result, len);
5262 pfatal_with_name (name)
5265 perror_with_name (name);
5266 delete_temp_files ();
5271 perror_with_name (name)
5274 error ("%s: %s", name, xstrerror (errno));
5278 pfatal_pexecute (errmsg_fmt, errmsg_arg)
5284 int save_errno = errno;
5286 /* Space for trailing '\0' is in %s. */
5287 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
5288 sprintf (msg, errmsg_fmt, errmsg_arg);
5294 pfatal_with_name (errmsg_fmt);
5297 /* More 'friendly' abort that prints the line and file.
5298 config.h can #define abort fancy_abort if you like that sort of thing. */
5303 fatal ("Internal gcc abort.");
5306 /* Output an error message and exit */
5309 fatal VPROTO((char *msgid, ...))
5311 #ifndef ANSI_PROTOTYPES
5316 VA_START (ap, msgid);
5318 #ifndef ANSI_PROTOTYPES
5319 msgid = va_arg (ap, char *);
5322 fprintf (stderr, "%s: ", programname);
5323 vfprintf (stderr, _(msgid), ap);
5325 fprintf (stderr, "\n");
5326 delete_temp_files ();
5331 error VPROTO((char *msgid, ...))
5333 #ifndef ANSI_PROTOTYPES
5338 VA_START (ap, msgid);
5340 #ifndef ANSI_PROTOTYPES
5341 msgid = va_arg (ap, char *);
5344 fprintf (stderr, "%s: ", programname);
5345 vfprintf (stderr, _(msgid), ap);
5348 fprintf (stderr, "\n");
5352 notice VPROTO((char *msgid, ...))
5354 #ifndef ANSI_PROTOTYPES
5359 VA_START (ap, msgid);
5361 #ifndef ANSI_PROTOTYPES
5362 msgid = va_arg (ap, char *);
5365 vfprintf (stderr, _(msgid), ap);
5371 validate_all_switches ()
5373 struct compiler *comp;
5376 struct spec_list *spec;
5378 for (comp = compilers; comp->spec[0]; comp++)
5381 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
5385 if (c == '%' && *p == '{')
5386 /* We have a switch spec. */
5387 validate_switches (p + 1);
5391 /* look through the linked list of specs read from the specs file */
5392 for (spec = specs; spec ; spec = spec->next)
5394 p = *(spec->ptr_spec);
5396 if (c == '%' && *p == '{')
5397 /* We have a switch spec. */
5398 validate_switches (p + 1);
5401 p = link_command_spec;
5403 if (c == '%' && *p == '{')
5404 /* We have a switch spec. */
5405 validate_switches (p + 1);
5408 /* Look at the switch-name that comes after START
5409 and mark as valid all supplied switches that match it. */
5412 validate_switches (start)
5415 register char *p = start;
5430 while (*p != ':' && *p != '}') p++;
5434 else if (p[-1] == '*')
5436 /* Mark all matching switches as valid. */
5438 for (i = 0; i < n_switches; i++)
5439 if (!strncmp (switches[i].part1, filter, p - filter))
5440 switches[i].validated = 1;
5444 /* Mark an exact matching switch as valid. */
5445 for (i = 0; i < n_switches; i++)
5447 if (!strncmp (switches[i].part1, filter, p - filter)
5448 && switches[i].part1[p - filter] == 0)
5449 switches[i].validated = 1;
5454 /* Check whether a particular argument was used. The first time we
5455 canonicalize the switches to keep only the ones we care about. */
5469 static struct mswitchstr *mswitches;
5470 static int n_mswitches;
5475 struct mswitchstr *matches;
5479 /* Break multilib_matches into the component strings of string and replacement
5481 for (q = multilib_matches; *q != '\0'; q++)
5485 matches = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
5487 q = multilib_matches;
5498 matches[i].len = q - matches[i].str;
5500 matches[i].replace = ++q;
5501 while (*q != ';' && *q != '\0')
5507 matches[i].rep_len = q - matches[i].replace;
5515 /* Now build a list of the replacement string for switches that we care
5516 about. Make sure we allocate at least one entry. This prevents
5517 xmalloc from calling fatal, and prevents us from re-executing this
5520 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
5521 * (n_switches ? n_switches : 1));
5522 for (i = 0; i < n_switches; i++)
5524 int xlen = strlen (switches[i].part1);
5525 for (j = 0; j < cnt; j++)
5526 if (xlen == matches[j].len && ! strcmp (switches[i].part1, matches[j].str))
5528 mswitches[n_mswitches].str = matches[j].replace;
5529 mswitches[n_mswitches].len = matches[j].rep_len;
5530 mswitches[n_mswitches].replace = (char *)0;
5531 mswitches[n_mswitches].rep_len = 0;
5538 for (i = 0; i < n_mswitches; i++)
5539 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
5546 default_arg (p, len)
5552 for (start = multilib_defaults; *start != '\0'; start = end+1)
5554 while (*start == ' ' || *start == '\t')
5560 for (end = start+1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
5563 if ((end - start) == len && strncmp (p, start, len) == 0)
5573 /* Work out the subdirectory to use based on the
5574 options. The format of multilib_select is a list of elements.
5575 Each element is a subdirectory name followed by a list of options
5576 followed by a semicolon. gcc will consider each line in turn. If
5577 none of the options beginning with an exclamation point are
5578 present, and all of the other options are present, that
5579 subdirectory will be used. */
5584 char *p = multilib_select;
5586 char *this_path, *this_arg;
5592 /* Ignore newlines. */
5599 /* Get the initial path. */
5607 this_path_len = p - this_path;
5609 /* Check the arguments. */
5624 while (*p != ' ' && *p != ';')
5631 if (*this_arg != '!')
5639 /* If this is a default argument, we can just ignore it.
5640 This is true even if this_arg begins with '!'. Beginning
5641 with '!' does not mean that this argument is necessarily
5642 inappropriate for this library: it merely means that
5643 there is a more specific library which uses this
5644 argument. If this argument is a default, we need not
5645 consider that more specific library. */
5646 if (! default_arg (this_arg, p - this_arg))
5648 ok = used_arg (this_arg, p - this_arg);
5659 if (this_path_len != 1
5660 || this_path[0] != '.')
5662 multilib_dir = xmalloc (this_path_len + 1);
5663 strncpy (multilib_dir, this_path, this_path_len);
5664 multilib_dir[this_path_len] = '\0';
5673 /* Print out the multiple library subdirectory selection
5674 information. This prints out a series of lines. Each line looks
5675 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5676 required. Only the desired options are printed out, the negative
5677 matches. The options are print without a leading dash. There are
5678 no spaces to make it easy to use the information in the shell.
5679 Each subdirectory is printed only once. This assumes the ordering
5680 generated by the genmultilib script. */
5683 print_multilib_info ()
5685 char *p = multilib_select;
5686 char *last_path = 0, *this_path;
5688 int last_path_len = 0;
5692 /* Ignore newlines. */
5699 /* Get the initial path. */
5708 /* If this is a duplicate, skip it. */
5709 skip = (last_path != 0 && p - this_path == last_path_len
5710 && ! strncmp (last_path, this_path, last_path_len));
5712 last_path = this_path;
5713 last_path_len = p - this_path;
5715 /* If this directory requires any default arguments, we can skip
5716 it. We will already have printed a directory identical to
5717 this one which does not require that default argument. */
5735 while (*q != ' ' && *q != ';')
5743 && default_arg (arg, q - arg))
5758 for (p1 = last_path; p1 < p; p1++)
5777 use_arg = *p != '!';
5782 while (*p != ' ' && *p != ';')
5797 /* If there are extra options, print them now */
5798 if (multilib_extra && *multilib_extra)
5800 int print_at = TRUE;
5803 for (q = multilib_extra; *q != '\0'; q++)