1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92-99, 2000 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". */
44 #define exit __posix_exit
47 #ifdef HAVE_SYS_RESOURCE_H
48 #include <sys/resource.h>
50 #ifdef NEED_DECLARATION_GETRUSAGE
51 extern int getrusage PARAMS ((int, struct rusage *));
54 /* By default there is no special suffix for executables. */
55 #ifdef EXECUTABLE_SUFFIX
56 #define HAVE_EXECUTABLE_SUFFIX
58 #define EXECUTABLE_SUFFIX ""
61 /* By default, the suffix for object files is ".o". */
63 #define HAVE_OBJECT_SUFFIX
65 #define OBJECT_SUFFIX ".o"
69 /* FIXME: the location independence code for VMS is hairier than this,
70 and hasn't been written. */
76 static char dir_separator_str[] = {DIR_SEPARATOR, 0};
78 #define obstack_chunk_alloc xmalloc
79 #define obstack_chunk_free free
81 #ifndef GET_ENV_PATH_LIST
82 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
85 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
86 #ifndef LIBRARY_PATH_ENV
87 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
91 #define kill(p,s) raise(s)
94 /* If a stage of compilation returns an exit status >= 1,
95 compilation of that file ceases. */
97 #define MIN_FATAL_STATUS 1
99 /* Flag saying to pass the greatest exit code returned by a sub-process
100 to the calling program. */
101 static int pass_exit_codes;
103 /* Flag saying to print the directories gcc will search through looking for
104 programs, libraries, etc. */
106 static int print_search_dirs;
108 /* Flag saying to print the full filename of this file
109 as found through our usual search mechanism. */
111 static const char *print_file_name = NULL;
113 /* As print_file_name, but search for executable file. */
115 static const char *print_prog_name = NULL;
117 /* Flag saying to print the relative path we'd use to
118 find libgcc.a given the current compiler flags. */
120 static int print_multi_directory;
122 /* Flag saying to print the list of subdirectories and
123 compiler flags used to select them in a standard form. */
125 static int print_multi_lib;
127 /* Flag saying to print the command line options understood by gcc and its
130 static int print_help_list;
132 /* Flag indicating whether we should print the command and arguments */
134 static int verbose_flag;
136 /* Flag indicating whether we should report subprocess execution times
137 (if this is supported by the system - see pexecute.c). */
139 static int report_times;
141 /* Nonzero means write "temp" files in source directory
142 and use the source file's name in them, and don't delete them. */
144 static int save_temps_flag;
146 /* The compiler version. */
148 static char *compiler_version;
150 /* The target version specified with -V */
152 static char *spec_version = DEFAULT_TARGET_VERSION;
154 /* The target machine specified with -b. */
156 static const char *spec_machine = DEFAULT_TARGET_MACHINE;
158 /* Nonzero if cross-compiling.
159 When -b is used, the value comes from the `specs' file. */
162 static char *cross_compile = "1";
164 static char *cross_compile = "0";
167 /* The number of errors that have occurred; the link phase will not be
168 run if this is non-zero. */
169 static int error_count = 0;
171 /* Greatest exit code of sub-processes that has been encountered up to
173 static int greatest_status = 1;
175 /* This is the obstack which we use to allocate many strings. */
177 static struct obstack obstack;
179 /* This is the obstack to build an environment variable to pass to
180 collect2 that describes all of the relevant switches of what to
181 pass the compiler in building the list of pointers to constructors
184 static struct obstack collect_obstack;
186 /* These structs are used to collect resource usage information for
188 #ifdef HAVE_GETRUSAGE
189 static struct rusage rus, prus;
192 extern char *version_string;
194 /* Forward declaration for prototypes. */
197 static void init_spec PARAMS ((void));
199 static char **split_directories PARAMS ((const char *, int *));
200 static void free_split_directories PARAMS ((char **));
201 static char *make_relative_prefix PARAMS ((const char *, const char *, const char *));
203 static void read_specs PARAMS ((const char *, int));
204 static void set_spec PARAMS ((const char *, const char *));
205 static struct compiler *lookup_compiler PARAMS ((const char *, size_t, const char *));
206 static char *build_search_list PARAMS ((struct path_prefix *, const char *, int));
207 static void putenv_from_prefixes PARAMS ((struct path_prefix *, const char *));
208 static int access_check PARAMS ((const char *, int));
209 static char *find_a_file PARAMS ((struct path_prefix *, const char *, int));
210 static void add_prefix PARAMS ((struct path_prefix *, const char *,
211 const char *, int, int, int *));
212 static char *skip_whitespace PARAMS ((char *));
213 static void record_temp_file PARAMS ((const char *, int, int));
214 static void delete_if_ordinary PARAMS ((const char *));
215 static void delete_temp_files PARAMS ((void));
216 static void delete_failure_queue PARAMS ((void));
217 static void clear_failure_queue PARAMS ((void));
218 static int check_live_switch PARAMS ((int, int));
219 static const char *handle_braces PARAMS ((const char *));
220 static char *save_string PARAMS ((const char *, int));
221 static int do_spec_1 PARAMS ((const char *, int, const char *));
222 static const char *find_file PARAMS ((const char *));
223 static int is_directory PARAMS ((const char *, const char *, int));
224 static void validate_switches PARAMS ((const char *));
225 static void validate_all_switches PARAMS ((void));
226 static void give_switch PARAMS ((int, int, int));
227 static int used_arg PARAMS ((const char *, int));
228 static int default_arg PARAMS ((const char *, int));
229 static void set_multilib_dir PARAMS ((void));
230 static void print_multilib_info PARAMS ((void));
231 static void pfatal_with_name PARAMS ((const char *)) ATTRIBUTE_NORETURN;
232 static void perror_with_name PARAMS ((const char *));
233 static void pfatal_pexecute PARAMS ((const char *, const char *))
235 static void error PARAMS ((const char *, ...))
237 static void notice PARAMS ((const char *, ...))
239 static void display_help PARAMS ((void));
240 static void add_preprocessor_option PARAMS ((const char *, int));
241 static void add_assembler_option PARAMS ((const char *, int));
242 static void add_linker_option PARAMS ((const char *, int));
243 static void process_command PARAMS ((int, char **));
244 static int execute PARAMS ((void));
245 static void unused_prefix_warnings PARAMS ((struct path_prefix *));
246 static void clear_args PARAMS ((void));
247 static void fatal_error PARAMS ((int));
248 static void set_input PARAMS ((const char *));
250 /* Specs are strings containing lines, each of which (if not blank)
251 is made up of a program name, and arguments separated by spaces.
252 The program name must be exact and start from root, since no path
253 is searched and it is unreliable to depend on the current working directory.
254 Redirection of input or output is not supported; the subprograms must
255 accept filenames saying what files to read and write.
257 In addition, the specs can contain %-sequences to substitute variable text
258 or for conditional text. Here is a table of all defined %-sequences.
259 Note that spaces are not generated automatically around the results of
260 expanding these sequences; therefore, you can concatenate them together
261 or with constant text in a single argument.
263 %% substitute one % into the program name or argument.
264 %i substitute the name of the input file being processed.
265 %b substitute the basename of the input file being processed.
266 This is the substring up to (and not including) the last period
267 and not including the directory.
269 substitute a file name that has suffix SUFFIX and is chosen
270 once per compilation, and mark the argument a la %d. To reduce
271 exposure to denial-of-service attacks, the file name is now
272 chosen in a way that is hard to predict even when previously
273 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
274 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
275 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
276 had been pre-processed. Previously, %g was simply substituted
277 with a file name chosen once per compilation, without regard
278 to any appended suffix (which was therefore treated just like
279 ordinary text), making such attacks more likely to succeed.
281 like %g, but generates a new temporary file name even if %uSUFFIX
284 substitutes the last file name generated with %uSUFFIX, generating a
285 new one if there is no such last file name. In the absence of any
286 %uSUFFIX, this is just like %gSUFFIX, except they don't share
287 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
288 would involve the generation of two distinct file names, one
289 for each `%g.s' and another for each `%U.s'. Previously, %U was
290 simply substituted with a file name chosen for the previous %u,
291 without regard to any appended suffix.
292 %d marks the argument containing or following the %d as a
293 temporary file name, so that that file will be deleted if CC exits
294 successfully. Unlike %g, this contributes no text to the argument.
295 %w marks the argument containing or following the %w as the
296 "output file" of this compilation. This puts the argument
297 into the sequence of arguments that %o will substitute later.
299 like %{...} but mark last argument supplied within
300 as a file to be deleted on failure.
301 %o substitutes the names of all the output files, with spaces
302 automatically placed around them. You should write spaces
303 around the %o as well or the results are undefined.
304 %o is for use in the specs for running the linker.
305 Input files whose names have no recognized suffix are not compiled
306 at all, but they are included among the output files, so they will
308 %O substitutes the suffix for object files. Note that this is
309 handled specially when it immediately follows %g, %u, or %U
310 (with or without a suffix argument) because of the need for
311 those to form complete file names. The handling is such that
312 %O is treated exactly as if it had already been substituted,
313 except that %g, %u, and %U do not currently support additional
314 SUFFIX characters following %O as they would following, for
316 %p substitutes the standard macro predefinitions for the
317 current target machine. Use this when running cpp.
318 %P like %p, but puts `__' before and after the name of each macro.
319 (Except macros that already have __.)
321 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
322 %s current argument is the name of a library or startup file of some sort.
323 Search for that file in a standard list of directories
324 and substitute the full name found.
325 %eSTR Print STR as an error message. STR is terminated by a newline.
326 Use this when inconsistent options are detected.
327 %x{OPTION} Accumulate an option for %X.
328 %X Output the accumulated linker options specified by compilations.
329 %Y Output the accumulated assembler options specified by compilations.
330 %Z Output the accumulated preprocessor options specified by compilations.
331 %v1 Substitute the major version number of GCC.
332 (For version 2.5.n, this is 2.)
333 %v2 Substitute the minor version number of GCC.
334 (For version 2.5.n, this is 5.)
335 %a process ASM_SPEC as a spec.
336 This allows config.h to specify part of the spec for running as.
337 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
338 used here. This can be used to run a post-processor after the
339 assembler has done its job.
340 %D Dump out a -L option for each directory in startfile_prefixes.
341 If multilib_dir is set, extra entries are generated with it affixed.
342 %l process LINK_SPEC as a spec.
343 %L process LIB_SPEC as a spec.
344 %G process LIBGCC_SPEC as a spec.
345 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
346 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
347 %c process SIGNED_CHAR_SPEC as a spec.
348 %C process CPP_SPEC as a spec. A capital C is actually used here.
349 %1 process CC1_SPEC as a spec.
350 %2 process CC1PLUS_SPEC as a spec.
351 %| output "-" if the input for the current command is coming from a pipe.
352 %* substitute the variable part of a matched option. (See below.)
353 Note that each comma in the substituted string is replaced by
355 %{S} substitutes the -S switch, if that switch was given to CC.
356 If that switch was not specified, this substitutes nothing.
357 Here S is a metasyntactic variable.
358 %{S*} substitutes all the switches specified to CC whose names start
359 with -S. This is used for -o, -D, -I, etc; switches that take
360 arguments. CC considers `-o foo' as being one switch whose
361 name starts with `o'. %{o*} would substitute this text,
362 including the space; thus, two arguments would be generated.
363 %{^S*} likewise, but don't put a blank between a switch and any args.
364 %{S*:X} substitutes X if one or more switches whose names start with -S are
365 specified to CC. Note that the tail part of the -S option
366 (i.e. the part matched by the `*') will be substituted for each
367 occurrence of %* within X.
368 %{S:X} substitutes X, but only if the -S switch was given to CC.
369 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
370 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
371 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
372 %{.S:X} substitutes X, but only if processing a file with suffix S.
373 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
374 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
375 combined with ! and . as above binding stronger than the OR.
376 %(Spec) processes a specification defined in a specs file as *Spec:
377 %[Spec] as above, but put __ around -D arguments
379 The conditional text X in a %{S:X} or %{!S:X} construct may contain
380 other nested % constructs or spaces, or even newlines. They are
381 processed as usual, as described above.
383 The -O, -f, -m, and -W switches are handled specifically in these
384 constructs. If another value of -O or the negated form of a -f, -m, or
385 -W switch is found later in the command line, the earlier switch
386 value is ignored, except with {S*} where S is just one letter; this
387 passes all matching options.
389 The character | at the beginning of the predicate text is used to indicate
390 that a command should be piped to the following command, but only if -pipe
393 Note that it is built into CC which switches take arguments and which
394 do not. You might think it would be useful to generalize this to
395 allow each compiler's spec to say which switches take arguments. But
396 this cannot be done in a consistent fashion. CC cannot even decide
397 which input files have been specified without knowing which switches
398 take arguments, and it must know which input files to compile in order
399 to tell which compilers to run.
401 CC also knows implicitly that arguments starting in `-l' are to be
402 treated as compiler output files, and passed to the linker in their
403 proper position among the other output files. */
405 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
407 /* config.h can define ASM_SPEC to provide extra args to the assembler
408 or extra switch-translations. */
413 /* config.h can define ASM_FINAL_SPEC to run a post processor after
414 the assembler has run. */
415 #ifndef ASM_FINAL_SPEC
416 #define ASM_FINAL_SPEC ""
419 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
420 or extra switch-translations. */
425 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
426 or extra switch-translations. */
431 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
432 or extra switch-translations. */
434 #define CC1PLUS_SPEC ""
437 /* config.h can define LINK_SPEC to provide extra args to the linker
438 or extra switch-translations. */
443 /* config.h can define LIB_SPEC to override the default libraries. */
445 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
448 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
451 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
452 /* Have gcc do the search for libgcc.a. */
453 #define LIBGCC_SPEC "libgcc.a%s"
455 #define LIBGCC_SPEC "-lgcc"
459 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
460 #ifndef STARTFILE_SPEC
461 #define STARTFILE_SPEC \
462 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
465 /* config.h can define SWITCHES_NEED_SPACES to control which options
466 require spaces between the option and the argument. */
467 #ifndef SWITCHES_NEED_SPACES
468 #define SWITCHES_NEED_SPACES ""
471 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
473 #define ENDFILE_SPEC ""
476 /* This spec is used for telling cpp whether char is signed or not. */
477 #ifndef SIGNED_CHAR_SPEC
478 /* Use #if rather than ?:
479 because MIPS C compiler rejects like ?: in initializers. */
480 #if DEFAULT_SIGNED_CHAR
481 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
483 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
488 #define LINKER_NAME "collect2"
491 static char *cpp_spec = CPP_SPEC;
492 static char *cpp_predefines = CPP_PREDEFINES;
493 static char *cc1_spec = CC1_SPEC;
494 static char *cc1plus_spec = CC1PLUS_SPEC;
495 static char *signed_char_spec = SIGNED_CHAR_SPEC;
496 static char *asm_spec = ASM_SPEC;
497 static char *asm_final_spec = ASM_FINAL_SPEC;
498 static char *link_spec = LINK_SPEC;
499 static char *lib_spec = LIB_SPEC;
500 static char *libgcc_spec = LIBGCC_SPEC;
501 static char *endfile_spec = ENDFILE_SPEC;
502 static char *startfile_spec = STARTFILE_SPEC;
503 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
504 static char *linker_name_spec = LINKER_NAME;
506 /* Some compilers have limits on line lengths, and the multilib_select
507 and/or multilib_matches strings can be very long, so we build them at
509 static struct obstack multilib_obstack;
510 static char *multilib_select;
511 static char *multilib_matches;
512 static char *multilib_defaults;
513 #include "multilib.h"
515 /* Check whether a particular argument is a default argument. */
517 #ifndef MULTILIB_DEFAULTS
518 #define MULTILIB_DEFAULTS { "" }
521 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
524 struct user_specs *next;
525 const char *filename;
528 static struct user_specs *user_specs_head, *user_specs_tail;
530 /* This defines which switch letters take arguments. */
532 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
533 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
534 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
535 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
536 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
537 || (CHAR) == 'B' || (CHAR) == 'b')
539 #ifndef SWITCH_TAKES_ARG
540 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
543 /* This defines which multi-letter switches take arguments. */
545 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
546 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
547 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
548 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
549 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
550 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
551 || !strcmp (STR, "isystem") || !strcmp (STR, "specs"))
553 #ifndef WORD_SWITCH_TAKES_ARG
554 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
558 #ifdef HAVE_EXECUTABLE_SUFFIX
559 /* This defines which switches stop a full compilation. */
560 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
561 ((CHAR) == 'c' || (CHAR) == 'S')
563 #ifndef SWITCH_CURTAILS_COMPILATION
564 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
565 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
569 /* Record the mapping from file suffixes for compilation specs. */
573 const char *suffix; /* Use this compiler for input files
574 whose names end in this suffix. */
576 const char *spec[4]; /* To use this compiler, concatenate these
577 specs and pass to do_spec. */
580 /* Pointer to a vector of `struct compiler' that gives the spec for
581 compiling a file, based on its suffix.
582 A file that does not end in any of these suffixes will be passed
583 unchanged to the loader and nothing else will be done to it.
585 An entry containing two 0s is used to terminate the vector.
587 If multiple entries match a file, the last matching one is used. */
589 static struct compiler *compilers;
591 /* Number of entries in `compilers', not counting the null terminator. */
593 static int n_compilers;
595 /* The default list of file name suffixes and their compilation specs. */
597 static struct compiler default_compilers[] =
599 /* Add lists of suffixes of known languages here. If those languages
600 were not present when we built the driver, we will hit these copies
601 and be given a more meaningful error than "file not used since
602 linking is not done". */
603 {".m", {"#Objective-C"}},
604 {".cc", {"#C++"}}, {".cxx", {"#C++"}}, {".cpp", {"#C++"}},
605 {".c++", {"#C++"}}, {".C", {"#C++"}},
606 {".ads", {"#Ada"}}, {".adb", {"#Ada"}}, {".ada", {"#Ada"}},
607 {".f", {"#Fortran"}}, {".for", {"#Fortran"}}, {".F", {"#Fortran"}},
608 {".fpp", {"#Fortran"}},
609 {".p", {"#Pascal"}}, {".pas", {"#Pascal"}},
610 /* Next come the entries for C. */
615 "%{E|M|MM:cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\
616 %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
617 %{C:%{!E:%eGNU C does not support -C without using -E}}\
618 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
619 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\
620 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
621 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
622 %{ffast-math:-D__FAST_MATH__}\
623 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
624 %{traditional} %{ftraditional:-traditional}\
625 %{traditional-cpp:-traditional}\
626 %{fleading-underscore} %{fno-leading-underscore}\
627 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
628 %i %{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}}\n}\
629 %{!E:%{!M:%{!MM:cc1 %i %1 \
630 %{std*} %{nostdinc*} %{A*} %{I*} %I\
631 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
632 %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
633 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\
634 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
635 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
636 %{ffast-math:-D__FAST_MATH__}\
637 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
638 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
639 %{H} %C %{D*} %{U*} %{i*} %Z\
640 %{ftraditional:-traditional}\
641 %{traditional-cpp:-traditional}\
642 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
643 %{aux-info*} %{Qn:-fno-ident}\
645 %{g*} %{O*} %{W*} %{w} %{pedantic*}\
646 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
647 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
649 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
650 %{!pipe:%g.s} %A\n }}}}"
651 #else /* ! USE_CPPLIB */
652 "cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\
653 %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
654 %{C:%{!E:%eGNU C does not support -C without using -E}}\
655 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
656 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\
657 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
658 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
659 %{ffast-math:-D__FAST_MATH__}\
660 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
661 %{traditional} %{ftraditional:-traditional}\
662 %{traditional-cpp:-traditional}\
663 %{fleading-underscore} %{fno-leading-underscore}\
664 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
665 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
666 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
667 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
668 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*}\
669 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
670 %{aux-info*} %{Qn:-fno-ident}\
672 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
673 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
675 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
676 %{!pipe:%g.s} %A\n }}}}"
677 #endif /* ! USE_CPPLIB */
680 {"%{E:cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\
681 %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
682 %{C:%{!E:%eGNU C does not support -C without using -E}}\
683 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
684 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\
685 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
686 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
687 %{ffast-math:-D__FAST_MATH__}\
688 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
689 %{traditional} %{ftraditional:-traditional}\
690 %{traditional-cpp:-traditional}\
691 %{fleading-underscore} %{fno-leading-underscore}\
692 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
694 %{!E:%e-E required when input is from standard input}"}},
695 {".h", {"@c-header"}},
697 {"%{!E:%eCompilation of header file requested} \
698 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
699 %{C:%{!E:%eGNU C does not support -C without using -E}}\
700 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
701 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\
702 %{!undef:%{!std=*:%p}%{std=gnu*:%p} %P} %{trigraphs}\
703 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
704 %{ffast-math:-D__FAST_MATH__}\
705 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
706 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
707 %{traditional} %{ftraditional:-traditional}\
708 %{traditional-cpp:-traditional}\
709 %{fleading-underscore} %{fno-leading-underscore}\
710 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
712 {".i", {"@cpp-output"}},
714 {"%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
715 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*}\
716 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
717 %{aux-info*} %{Qn:-fno-ident} -fpreprocessed\
718 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
719 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
721 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
722 %{!pipe:%g.s} %A\n }}}}"}},
723 {".s", {"@assembler"}},
725 {"%{!M:%{!MM:%{!E:%{!S:as %a %Y\
726 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
728 {".S", {"@assembler-with-cpp"}},
729 {"@assembler-with-cpp",
730 {"cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
731 %{C:%{!E:%eGNU C does not support -C without using -E}}\
732 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
733 -$ %{!undef:%p %P} -D__ASSEMBLER__ \
734 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
735 %{ffast-math:-D__FAST_MATH__}\
736 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
737 %{traditional} %{ftraditional:-traditional}\
738 %{traditional-cpp:-traditional}\
739 %{fleading-underscore} %{fno-leading-underscore}\
740 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
741 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
742 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
743 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
744 %{!pipe:%g.s} %A\n }}}}"}},
746 /* Mark end of table */
750 /* Number of elements in default_compilers, not counting the terminator. */
752 static int n_default_compilers
753 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
755 /* Here is the spec for running the linker, after compiling all files. */
757 /* -u* was put back because both BSD and SysV seem to support it. */
758 /* %{static:} simply prevents an error message if the target machine
759 doesn't handle -static. */
760 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
761 scripts which exist in user specified directories, or in standard
763 #ifdef LINK_COMMAND_SPEC
764 /* Provide option to override link_command_spec from machine specific
765 configuration files. */
766 static const char *link_command_spec =
769 #ifdef LINK_LIBGCC_SPECIAL
770 /* Don't generate -L options. */
771 static const char *link_command_spec = "\
773 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
774 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
775 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
777 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
778 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
783 static const char *link_command_spec = "\
785 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
786 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
787 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
788 %{static:} %{L*} %D %o\
789 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
790 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
796 /* A vector of options to give to the linker.
797 These options are accumulated by %x,
798 and substituted into the linker command with %X. */
799 static int n_linker_options;
800 static char **linker_options;
802 /* A vector of options to give to the assembler.
803 These options are accumulated by -Wa,
804 and substituted into the assembler command with %Y. */
805 static int n_assembler_options;
806 static char **assembler_options;
808 /* A vector of options to give to the preprocessor.
809 These options are accumulated by -Wp,
810 and substituted into the preprocessor command with %Z. */
811 static int n_preprocessor_options;
812 static char **preprocessor_options;
814 /* Define how to map long options into short ones. */
816 /* This structure describes one mapping. */
819 /* The long option's name. */
821 /* The equivalent short option. */
822 const char *equivalent;
823 /* Argument info. A string of flag chars; NULL equals no options.
824 a => argument required.
825 o => argument optional.
826 j => join argument to equivalent, making one word.
827 * => require other text after NAME as an argument. */
828 const char *arg_info;
831 /* This is the table of mappings. Mappings are tried sequentially
832 for each option encountered; the first one that matches, wins. */
834 struct option_map option_map[] =
836 {"--all-warnings", "-Wall", 0},
837 {"--ansi", "-ansi", 0},
838 {"--assemble", "-S", 0},
839 {"--assert", "-A", "a"},
840 {"--classpath", "-fclasspath=", "aj"},
841 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
842 {"--comments", "-C", 0},
843 {"--compile", "-c", 0},
844 {"--debug", "-g", "oj"},
845 {"--define-macro", "-D", "aj"},
846 {"--dependencies", "-M", 0},
847 {"--dump", "-d", "a"},
848 {"--dumpbase", "-dumpbase", "a"},
849 {"--entry", "-e", 0},
850 {"--extra-warnings", "-W", 0},
851 {"--for-assembler", "-Wa", "a"},
852 {"--for-linker", "-Xlinker", "a"},
853 {"--force-link", "-u", "a"},
854 {"--imacros", "-imacros", "a"},
855 {"--include", "-include", "a"},
856 {"--include-barrier", "-I-", 0},
857 {"--include-directory", "-I", "aj"},
858 {"--include-directory-after", "-idirafter", "a"},
859 {"--include-prefix", "-iprefix", "a"},
860 {"--include-with-prefix", "-iwithprefix", "a"},
861 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
862 {"--include-with-prefix-after", "-iwithprefix", "a"},
863 {"--language", "-x", "a"},
864 {"--library-directory", "-L", "a"},
865 {"--machine", "-m", "aj"},
866 {"--machine-", "-m", "*j"},
867 {"--no-line-commands", "-P", 0},
868 {"--no-precompiled-includes", "-noprecomp", 0},
869 {"--no-standard-includes", "-nostdinc", 0},
870 {"--no-standard-libraries", "-nostdlib", 0},
871 {"--no-warnings", "-w", 0},
872 {"--optimize", "-O", "oj"},
873 {"--output", "-o", "a"},
874 {"--output-class-directory", "-foutput-class-dir=", "ja"},
875 {"--pedantic", "-pedantic", 0},
876 {"--pedantic-errors", "-pedantic-errors", 0},
877 {"--pipe", "-pipe", 0},
878 {"--prefix", "-B", "a"},
879 {"--preprocess", "-E", 0},
880 {"--print-search-dirs", "-print-search-dirs", 0},
881 {"--print-file-name", "-print-file-name=", "aj"},
882 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
883 {"--print-missing-file-dependencies", "-MG", 0},
884 {"--print-multi-lib", "-print-multi-lib", 0},
885 {"--print-multi-directory", "-print-multi-directory", 0},
886 {"--print-prog-name", "-print-prog-name=", "aj"},
887 {"--profile", "-p", 0},
888 {"--profile-blocks", "-a", 0},
889 {"--quiet", "-q", 0},
890 {"--save-temps", "-save-temps", 0},
891 {"--shared", "-shared", 0},
892 {"--silent", "-q", 0},
893 {"--specs", "-specs=", "aj"},
894 {"--static", "-static", 0},
895 {"--std", "-std=", "aj"},
896 {"--symbolic", "-symbolic", 0},
897 {"--target", "-b", "a"},
898 {"--time", "-time", 0},
899 {"--trace-includes", "-H", 0},
900 {"--traditional", "-traditional", 0},
901 {"--traditional-cpp", "-traditional-cpp", 0},
902 {"--trigraphs", "-trigraphs", 0},
903 {"--undefine-macro", "-U", "aj"},
904 {"--use-version", "-V", "a"},
905 {"--user-dependencies", "-MM", 0},
906 {"--verbose", "-v", 0},
907 {"--version", "-dumpversion", 0},
908 {"--warn-", "-W", "*j"},
909 {"--write-dependencies", "-MD", 0},
910 {"--write-user-dependencies", "-MMD", 0},
914 /* Translate the options described by *ARGCP and *ARGVP.
915 Make a new vector and store it back in *ARGVP,
916 and store its length in *ARGVC. */
919 translate_options (argcp, argvp)
925 const char **argv = *argvp;
927 (const char **) xmalloc ((argc + 2) * 2 * sizeof (const char *));
931 newv[newindex++] = argv[i++];
935 /* Translate -- options. */
936 if (argv[i][0] == '-' && argv[i][1] == '-')
939 /* Find a mapping that applies to this option. */
940 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
942 size_t optlen = strlen (option_map[j].name);
943 size_t arglen = strlen (argv[i]);
944 size_t complen = arglen > optlen ? optlen : arglen;
945 const char *arginfo = option_map[j].arg_info;
950 if (!strncmp (argv[i], option_map[j].name, complen))
958 k < sizeof (option_map) / sizeof (option_map[0]);
960 if (strlen (option_map[k].name) >= arglen
961 && !strncmp (argv[i], option_map[k].name, arglen))
963 error ("Ambiguous abbreviation %s", argv[i]);
967 if (k != sizeof (option_map) / sizeof (option_map[0]))
973 /* If the option has an argument, accept that. */
974 if (argv[i][optlen] == '=')
975 arg = argv[i] + optlen + 1;
977 /* If this mapping requires extra text at end of name,
978 accept that as "argument". */
979 else if (index (arginfo, '*') != 0)
980 arg = argv[i] + optlen;
982 /* Otherwise, extra text at end means mismatch.
983 Try other mappings. */
988 else if (index (arginfo, '*') != 0)
990 error ("Incomplete `%s' option", option_map[j].name);
994 /* Handle arguments. */
995 if (index (arginfo, 'a') != 0)
1001 error ("Missing argument to `%s' option",
1002 option_map[j].name);
1009 else if (index (arginfo, '*') != 0)
1011 else if (index (arginfo, 'o') == 0)
1014 error ("Extraneous argument to `%s' option",
1015 option_map[j].name);
1019 /* Store the translation as one argv elt or as two. */
1020 if (arg != 0 && index (arginfo, 'j') != 0)
1021 newv[newindex++] = concat (option_map[j].equivalent, arg,
1025 newv[newindex++] = option_map[j].equivalent;
1026 newv[newindex++] = arg;
1029 newv[newindex++] = option_map[j].equivalent;
1037 /* Handle old-fashioned options--just copy them through,
1038 with their arguments. */
1039 else if (argv[i][0] == '-')
1041 const char *p = argv[i] + 1;
1045 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1046 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1047 else if (WORD_SWITCH_TAKES_ARG (p))
1048 nskip += WORD_SWITCH_TAKES_ARG (p);
1049 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
1052 else if (! strcmp (p, "Xlinker"))
1055 /* Watch out for an option at the end of the command line that
1056 is missing arguments, and avoid skipping past the end of the
1058 if (nskip + i > argc)
1063 newv[newindex++] = argv[i++];
1068 /* Ordinary operands, or +e options. */
1069 newv[newindex++] = argv[i++];
1084 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1085 be considered whitespace. */
1086 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1088 else if (*p == '\n' || *p == ' ' || *p == '\t')
1092 while (*p != '\n') p++;
1102 /* Structure to keep track of the specs that have been defined so far.
1103 These are accessed using %(specname) or %[specname] in a compiler
1108 /* The following 2 fields must be first */
1109 /* to allow EXTRA_SPECS to be initialized */
1110 char *name; /* name of the spec. */
1111 char *ptr; /* available ptr if no static pointer */
1113 /* The following fields are not initialized */
1114 /* by EXTRA_SPECS */
1115 char **ptr_spec; /* pointer to the spec itself. */
1116 struct spec_list *next; /* Next spec in linked list. */
1117 int name_len; /* length of the name */
1118 int alloc_p; /* whether string was allocated */
1121 #define INIT_STATIC_SPEC(NAME,PTR) \
1122 { NAME, NULL_PTR, PTR, (struct spec_list *)0, sizeof (NAME)-1, 0 }
1124 /* List of statically defined specs */
1125 static struct spec_list static_specs[] = {
1126 INIT_STATIC_SPEC ("asm", &asm_spec),
1127 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1128 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1129 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1130 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1131 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1132 INIT_STATIC_SPEC ("link", &link_spec),
1133 INIT_STATIC_SPEC ("lib", &lib_spec),
1134 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1135 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1136 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1137 INIT_STATIC_SPEC ("signed_char", &signed_char_spec),
1138 INIT_STATIC_SPEC ("predefines", &cpp_predefines),
1139 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1140 INIT_STATIC_SPEC ("version", &compiler_version),
1141 INIT_STATIC_SPEC ("multilib", &multilib_select),
1142 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1143 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1144 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1145 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1148 #ifdef EXTRA_SPECS /* additional specs needed */
1149 /* Structure to keep track of just the first two args of a spec_list.
1150 That is all that the EXTRA_SPECS macro gives us. */
1157 static struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1158 static struct spec_list * extra_specs = (struct spec_list *)0;
1161 /* List of dynamically allocates specs that have been defined so far. */
1163 static struct spec_list *specs = (struct spec_list *)0;
1166 /* Initialize the specs lookup routines. */
1171 struct spec_list *next = (struct spec_list *)0;
1172 struct spec_list *sl = (struct spec_list *)0;
1176 return; /* already initialized */
1179 notice ("Using builtin specs.\n");
1182 extra_specs = (struct spec_list *)
1183 xcalloc (sizeof(struct spec_list),
1184 (sizeof(extra_specs_1)/sizeof(extra_specs_1[0])));
1186 for (i = (sizeof(extra_specs_1) / sizeof(extra_specs_1[0])) - 1; i >= 0; i--)
1188 sl = &extra_specs[i];
1189 sl->name = extra_specs_1[i].name;
1190 sl->ptr = extra_specs_1[i].ptr;
1192 sl->name_len = strlen (sl->name);
1193 sl->ptr_spec = &sl->ptr;
1198 for (i = (sizeof (static_specs) / sizeof (static_specs[0])) - 1; i >= 0; i--)
1200 sl = &static_specs[i];
1209 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1210 removed; If the spec starts with a + then SPEC is added to the end of the
1214 set_spec (name, spec)
1218 struct spec_list *sl;
1220 int name_len = strlen (name);
1223 /* If this is the first call, initialize the statically allocated specs */
1226 struct spec_list *next = (struct spec_list *)0;
1227 for (i = (sizeof (static_specs) / sizeof (static_specs[0])) - 1;
1230 sl = &static_specs[i];
1237 /* See if the spec already exists */
1238 for (sl = specs; sl; sl = sl->next)
1239 if (name_len == sl->name_len && !strcmp (sl->name, name))
1244 /* Not found - make it */
1245 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1246 sl->name = xstrdup (name);
1247 sl->name_len = name_len;
1248 sl->ptr_spec = &sl->ptr;
1250 *(sl->ptr_spec) = "";
1255 old_spec = *(sl->ptr_spec);
1256 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1257 ? concat (old_spec, spec + 1, NULL_PTR)
1262 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1265 /* Free the old spec */
1266 if (old_spec && sl->alloc_p)
1272 /* Accumulate a command (program name and args), and run it. */
1274 /* Vector of pointers to arguments in the current line of specifications. */
1276 static char **argbuf;
1278 /* Number of elements allocated in argbuf. */
1280 static int argbuf_length;
1282 /* Number of elements in argbuf currently in use (containing args). */
1284 static int argbuf_index;
1286 /* We want this on by default all the time now. */
1287 #define MKTEMP_EACH_FILE
1289 #ifdef MKTEMP_EACH_FILE
1291 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1294 static struct temp_name {
1295 const char *suffix; /* suffix associated with the code. */
1296 int length; /* strlen (suffix). */
1297 int unique; /* Indicates whether %g or %u/%U was used. */
1298 const char *filename; /* associated filename. */
1299 int filename_length; /* strlen (filename). */
1300 struct temp_name *next;
1305 /* Number of commands executed so far. */
1307 static int execution_count;
1309 /* Number of commands that exited with a signal. */
1311 static int signal_count;
1313 /* Name with which this program was invoked. */
1315 static const char *programname;
1317 /* Structures to keep track of prefixes to try when looking for files. */
1321 char *prefix; /* String to prepend to the path. */
1322 struct prefix_list *next; /* Next in linked list. */
1323 int require_machine_suffix; /* Don't use without machine_suffix. */
1324 /* 2 means try both machine_suffix and just_machine_suffix. */
1325 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1330 struct prefix_list *plist; /* List of prefixes to try */
1331 int max_len; /* Max length of a prefix in PLIST */
1332 const char *name; /* Name of this list (used in config stuff) */
1335 /* List of prefixes to try when looking for executables. */
1337 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1339 /* List of prefixes to try when looking for startup (crt0) files. */
1341 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1343 /* List of prefixes to try when looking for include files. */
1345 static struct path_prefix include_prefixes = { 0, 0, "include" };
1347 /* Suffix to attach to directories searched for commands.
1348 This looks like `MACHINE/VERSION/'. */
1350 static const char *machine_suffix = 0;
1352 /* Suffix to attach to directories searched for commands.
1353 This is just `MACHINE/'. */
1355 static const char *just_machine_suffix = 0;
1357 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1359 static const char *gcc_exec_prefix;
1361 /* Default prefixes to attach to command names. */
1363 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1364 #undef MD_EXEC_PREFIX
1365 #undef MD_STARTFILE_PREFIX
1366 #undef MD_STARTFILE_PREFIX_1
1369 #ifndef STANDARD_EXEC_PREFIX
1370 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1371 #endif /* !defined STANDARD_EXEC_PREFIX */
1373 static const char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1374 static const char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1375 #ifdef MD_EXEC_PREFIX
1376 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1379 #ifndef STANDARD_STARTFILE_PREFIX
1380 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1381 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1383 #ifdef MD_STARTFILE_PREFIX
1384 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1386 #ifdef MD_STARTFILE_PREFIX_1
1387 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1389 static const char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1390 static const char *standard_startfile_prefix_1 = "/lib/";
1391 static const char *standard_startfile_prefix_2 = "/usr/lib/";
1393 #ifndef TOOLDIR_BASE_PREFIX
1394 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1396 static const char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1397 static const char *tooldir_prefix;
1399 #ifndef STANDARD_BINDIR_PREFIX
1400 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1402 static char *standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1404 /* Subdirectory to use for locating libraries. Set by
1405 set_multilib_dir based on the compilation options. */
1407 static const char *multilib_dir;
1409 /* Clear out the vector of arguments (after a command is executed). */
1417 /* Add one argument to the vector at the end.
1418 This is done when a space is seen or at the end of the line.
1419 If DELETE_ALWAYS is nonzero, the arg is a filename
1420 and the file should be deleted eventually.
1421 If DELETE_FAILURE is nonzero, the arg is a filename
1422 and the file should be deleted if this compilation fails. */
1425 store_arg (arg, delete_always, delete_failure)
1427 int delete_always, delete_failure;
1429 if (argbuf_index + 1 == argbuf_length)
1431 = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1433 argbuf[argbuf_index++] = arg;
1434 argbuf[argbuf_index] = 0;
1436 if (delete_always || delete_failure)
1437 record_temp_file (arg, delete_always, delete_failure);
1440 /* Read compilation specs from a file named FILENAME,
1441 replacing the default ones.
1443 A suffix which starts with `*' is a definition for
1444 one of the machine-specific sub-specs. The "suffix" should be
1445 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1446 The corresponding spec is stored in asm_spec, etc.,
1447 rather than in the `compilers' vector.
1449 Anything invalid in the file is a fatal error. */
1452 read_specs (filename, main_p)
1453 const char *filename;
1458 struct stat statbuf;
1463 notice ("Reading specs from %s\n", filename);
1465 /* Open and stat the file. */
1466 desc = open (filename, O_RDONLY, 0);
1468 pfatal_with_name (filename);
1469 if (stat (filename, &statbuf) < 0)
1470 pfatal_with_name (filename);
1472 /* Read contents of file into BUFFER. */
1473 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1474 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1476 pfatal_with_name (filename);
1477 buffer[readlen] = 0;
1480 /* Scan BUFFER for specs, putting them in the vector. */
1486 char *in, *out, *p1, *p2, *p3;
1488 /* Advance P in BUFFER to the next nonblank nocomment line. */
1489 p = skip_whitespace (p);
1493 /* Is this a special command that starts with '%'? */
1494 /* Don't allow this for the main specs file, since it would
1495 encourage people to overwrite it. */
1496 if (*p == '%' && !main_p)
1499 while (*p && *p != '\n')
1502 p++; /* Skip '\n' */
1504 if (!strncmp (p1, "%include", sizeof ("%include")-1)
1505 && (p1[sizeof "%include" - 1] == ' '
1506 || p1[sizeof "%include" - 1] == '\t'))
1510 p1 += sizeof ("%include");
1511 while (*p1 == ' ' || *p1 == '\t')
1514 if (*p1++ != '<' || p[-2] != '>')
1515 fatal ("specs %%include syntax malformed after %ld characters",
1516 (long) (p1 - buffer + 1));
1519 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1520 read_specs (new_filename ? new_filename : p1, FALSE);
1523 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
1524 && (p1[sizeof "%include_noerr" - 1] == ' '
1525 || p1[sizeof "%include_noerr" - 1] == '\t'))
1529 p1 += sizeof "%include_noerr";
1530 while (*p1 == ' ' || *p1 == '\t') p1++;
1532 if (*p1++ != '<' || p[-2] != '>')
1533 fatal ("specs %%include syntax malformed after %ld characters",
1534 (long) (p1 - buffer + 1));
1537 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1539 read_specs (new_filename, FALSE);
1540 else if (verbose_flag)
1541 notice ("Could not find specs file %s\n", p1);
1544 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
1545 && (p1[sizeof "%rename" - 1] == ' '
1546 || p1[sizeof "%rename" - 1] == '\t'))
1549 struct spec_list *sl;
1551 /* Get original name */
1552 p1 += sizeof "%rename";
1553 while (*p1 == ' ' || *p1 == '\t')
1556 if (! ISALPHA ((unsigned char)*p1))
1557 fatal ("specs %%rename syntax malformed after %ld characters",
1558 (long) (p1 - buffer));
1561 while (*p2 && !ISSPACE ((unsigned char)*p2))
1564 if (*p2 != ' ' && *p2 != '\t')
1565 fatal ("specs %%rename syntax malformed after %ld characters",
1566 (long) (p2 - buffer));
1570 while (*p2 == ' ' || *p2 == '\t')
1573 if (! ISALPHA ((unsigned char)*p2))
1574 fatal ("specs %%rename syntax malformed after %ld characters",
1575 (long) (p2 - buffer));
1577 /* Get new spec name */
1579 while (*p3 && !ISSPACE ((unsigned char)*p3))
1583 fatal ("specs %%rename syntax malformed after %ld characters",
1584 (long) (p3 - buffer));
1587 for (sl = specs; sl; sl = sl->next)
1588 if (name_len == sl->name_len && !strcmp (sl->name, p1))
1592 fatal ("specs %s spec was not found to be renamed", p1);
1594 if (strcmp (p1, p2) == 0)
1599 notice ("rename spec %s to %s\n", p1, p2);
1601 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
1605 set_spec (p2, *(sl->ptr_spec));
1607 free (*(sl->ptr_spec));
1609 *(sl->ptr_spec) = "";
1614 fatal ("specs unknown %% command after %ld characters",
1615 (long) (p1 - buffer));
1618 /* Find the colon that should end the suffix. */
1620 while (*p1 && *p1 != ':' && *p1 != '\n')
1623 /* The colon shouldn't be missing. */
1625 fatal ("specs file malformed after %ld characters",
1626 (long) (p1 - buffer));
1628 /* Skip back over trailing whitespace. */
1630 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
1633 /* Copy the suffix to a string. */
1634 suffix = save_string (p, p2 - p);
1635 /* Find the next line. */
1636 p = skip_whitespace (p1 + 1);
1638 fatal ("specs file malformed after %ld characters",
1639 (long) (p - buffer));
1642 /* Find next blank line or end of string. */
1643 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
1646 /* Specs end at the blank line and do not include the newline. */
1647 spec = save_string (p, p1 - p);
1650 /* Delete backslash-newline sequences from the spec. */
1655 if (in[0] == '\\' && in[1] == '\n')
1657 else if (in[0] == '#')
1658 while (*in && *in != '\n')
1666 if (suffix[0] == '*')
1668 if (! strcmp (suffix, "*link_command"))
1669 link_command_spec = spec;
1671 set_spec (suffix + 1, spec);
1675 /* Add this pair to the vector. */
1677 = ((struct compiler *)
1678 xrealloc (compilers,
1679 (n_compilers + 2) * sizeof (struct compiler)));
1681 compilers[n_compilers].suffix = suffix;
1682 memset (compilers[n_compilers].spec, 0,
1683 sizeof compilers[n_compilers].spec);
1684 compilers[n_compilers].spec[0] = spec;
1686 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
1690 link_command_spec = spec;
1693 if (link_command_spec == 0)
1694 fatal ("spec file has no spec for linking");
1697 /* Record the names of temporary files we tell compilers to write,
1698 and delete them at the end of the run. */
1700 /* This is the common prefix we use to make temp file names.
1701 It is chosen once for each run of this program.
1702 It is substituted into a spec by %g.
1703 Thus, all temp file names contain this prefix.
1704 In practice, all temp file names start with this prefix.
1706 This prefix comes from the envvar TMPDIR if it is defined;
1707 otherwise, from the P_tmpdir macro if that is defined;
1708 otherwise, in /usr/tmp or /tmp;
1709 or finally the current directory if all else fails. */
1711 static const char *temp_filename;
1713 /* Length of the prefix. */
1715 static int temp_filename_length;
1717 /* Define the list of temporary files to delete. */
1722 struct temp_file *next;
1725 /* Queue of files to delete on success or failure of compilation. */
1726 static struct temp_file *always_delete_queue;
1727 /* Queue of files to delete on failure of compilation. */
1728 static struct temp_file *failure_delete_queue;
1730 /* Record FILENAME as a file to be deleted automatically.
1731 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1732 otherwise delete it in any case.
1733 FAIL_DELETE nonzero means delete it if a compilation step fails;
1734 otherwise delete it in any case. */
1737 record_temp_file (filename, always_delete, fail_delete)
1738 const char *filename;
1742 register char * const name = xstrdup (filename);
1746 register struct temp_file *temp;
1747 for (temp = always_delete_queue; temp; temp = temp->next)
1748 if (! strcmp (name, temp->name))
1751 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1752 temp->next = always_delete_queue;
1754 always_delete_queue = temp;
1761 register struct temp_file *temp;
1762 for (temp = failure_delete_queue; temp; temp = temp->next)
1763 if (! strcmp (name, temp->name))
1766 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1767 temp->next = failure_delete_queue;
1769 failure_delete_queue = temp;
1775 /* Delete all the temporary files whose names we previously recorded. */
1778 delete_if_ordinary (name)
1785 printf ("Delete %s? (y or n) ", name);
1789 while ((c = getchar ()) != '\n' && c != EOF)
1792 if (i == 'y' || i == 'Y')
1794 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1795 if (unlink (name) < 0)
1797 perror_with_name (name);
1801 delete_temp_files ()
1803 register struct temp_file *temp;
1805 for (temp = always_delete_queue; temp; temp = temp->next)
1806 delete_if_ordinary (temp->name);
1807 always_delete_queue = 0;
1810 /* Delete all the files to be deleted on error. */
1813 delete_failure_queue ()
1815 register struct temp_file *temp;
1817 for (temp = failure_delete_queue; temp; temp = temp->next)
1818 delete_if_ordinary (temp->name);
1822 clear_failure_queue ()
1824 failure_delete_queue = 0;
1827 /* Routine to add variables to the environment. We do this to pass
1828 the pathname of the gcc driver, and the directories search to the
1829 collect2 program, which is being run as ld. This way, we can be
1830 sure of executing the right compiler when collect2 wants to build
1831 constructors and destructors. Since the environment variables we
1832 use come from an obstack, we don't have to worry about allocating
1841 #ifndef VMS /* nor about VMS */
1843 extern char **environ;
1844 char **old_environ = environ;
1848 int str_len = strlen (str);
1852 while ((ch = *p++) != '\0' && ch != '=')
1858 /* Search for replacing an existing environment variable, and
1859 count the number of total environment variables. */
1860 for (envp = old_environ; *envp; envp++)
1863 if (!strncmp (str, *envp, name_len))
1870 /* Add a new environment variable */
1871 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1873 memcpy ((char *) (environ + 1), (char *) old_environ,
1874 sizeof (char *) * (num_envs+1));
1879 #endif /* HAVE_PUTENV */
1882 /* Build a list of search directories from PATHS.
1883 PREFIX is a string to prepend to the list.
1884 If CHECK_DIR_P is non-zero we ensure the directory exists.
1885 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1886 It is also used by the --print-search-dirs flag. */
1889 build_search_list (paths, prefix, check_dir_p)
1890 struct path_prefix *paths;
1894 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1896 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1897 int first_time = TRUE;
1898 struct prefix_list *pprefix;
1900 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1901 obstack_1grow (&collect_obstack, '=');
1903 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1905 int len = strlen (pprefix->prefix);
1909 || is_directory (pprefix->prefix, machine_suffix, 0)))
1912 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1915 obstack_grow (&collect_obstack, pprefix->prefix, len);
1916 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1919 if (just_machine_suffix
1920 && pprefix->require_machine_suffix == 2
1922 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1925 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1928 obstack_grow (&collect_obstack, pprefix->prefix, len);
1929 obstack_grow (&collect_obstack, just_machine_suffix,
1933 if (! pprefix->require_machine_suffix)
1936 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1939 obstack_grow (&collect_obstack, pprefix->prefix, len);
1943 obstack_1grow (&collect_obstack, '\0');
1944 return obstack_finish (&collect_obstack);
1947 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1951 putenv_from_prefixes (paths, env_var)
1952 struct path_prefix *paths;
1953 const char *env_var;
1955 putenv (build_search_list (paths, env_var, 1));
1960 /* FIXME: the location independence code for VMS is hairier than this,
1961 and hasn't been written. */
1963 /* Split a filename into component directories. */
1966 split_directories (name, ptr_num_dirs)
1975 /* Count the number of directories. Special case MSDOS disk names as part
1976 of the initial directory. */
1978 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
1979 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
1984 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
1986 while ((ch = *p++) != '\0')
1988 if (IS_DIR_SEPARATOR (ch))
1991 while (IS_DIR_SEPARATOR (*p))
1996 dirs = (char **) xmalloc (sizeof (char *) * (num_dirs + 2));
1998 /* Now copy the directory parts. */
2001 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2002 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2004 dirs[num_dirs++] = save_string (p, 3);
2007 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2010 while ((ch = *p++) != '\0')
2012 if (IS_DIR_SEPARATOR (ch))
2014 while (IS_DIR_SEPARATOR (*p))
2017 dirs[num_dirs++] = save_string (q, p - q);
2023 dirs[num_dirs++] = save_string (q, p - 1 - q);
2025 dirs[num_dirs] = NULL_PTR;
2027 *ptr_num_dirs = num_dirs;
2032 /* Release storage held by split directories. */
2035 free_split_directories (dirs)
2040 while (dirs[i] != NULL_PTR)
2043 free ((char *)dirs);
2046 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2047 to PREFIX starting with the directory portion of PROGNAME and a relative
2048 pathname of the difference between BIN_PREFIX and PREFIX.
2050 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2051 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2052 function will return /reg/green/blue/../omega.
2054 If no relative prefix can be found, return NULL. */
2057 make_relative_prefix (progname, bin_prefix, prefix)
2058 const char *progname;
2059 const char *bin_prefix;
2062 char **prog_dirs, **bin_dirs, **prefix_dirs;
2063 int prog_num, bin_num, prefix_num, std_loc_p;
2066 prog_dirs = split_directories (progname, &prog_num);
2067 bin_dirs = split_directories (bin_prefix, &bin_num);
2069 /* If there is no full pathname, try to find the program by checking in each
2070 of the directories specified in the PATH environment variable. */
2075 GET_ENV_PATH_LIST (temp, "PATH");
2078 char *startp, *endp;
2079 char *nstore = (char *) alloca (strlen (temp) + strlen (progname) + 1);
2081 startp = endp = temp;
2084 if (*endp == PATH_SEPARATOR || *endp == 0)
2089 nstore[1] = DIR_SEPARATOR;
2094 strncpy (nstore, startp, endp-startp);
2095 if (! IS_DIR_SEPARATOR (endp[-1]))
2097 nstore[endp-startp] = DIR_SEPARATOR;
2098 nstore[endp-startp+1] = 0;
2101 nstore[endp-startp] = 0;
2103 strcat (nstore, progname);
2104 if (! access (nstore, X_OK)
2105 #ifdef HAVE_EXECUTABLE_SUFFIX
2106 || ! access (strcat (nstore, EXECUTABLE_SUFFIX), X_OK)
2110 free_split_directories (prog_dirs);
2112 prog_dirs = split_directories (progname, &prog_num);
2118 endp = startp = endp + 1;
2126 /* Remove the program name from comparison of directory names. */
2129 /* Determine if the compiler is installed in the standard location, and if
2130 so, we don't need to specify relative directories. Also, if argv[0]
2131 doesn't contain any directory specifiers, there is not much we can do. */
2133 if (prog_num == bin_num)
2135 for (i = 0; i < bin_num; i++)
2137 if (strcmp (prog_dirs[i], bin_dirs[i]) != 0)
2141 if (prog_num <= 0 || i == bin_num)
2144 free_split_directories (prog_dirs);
2145 free_split_directories (bin_dirs);
2146 prog_dirs = bin_dirs = (char **)0;
2151 prefix_dirs = split_directories (prefix, &prefix_num);
2153 /* Find how many directories are in common between bin_prefix & prefix */
2154 n = (prefix_num < bin_num) ? prefix_num : bin_num;
2155 for (common = 0; common < n; common++)
2157 if (strcmp (bin_dirs[common], prefix_dirs[common]) != 0)
2161 /* If there are no common directories, there can be no relative prefix. */
2164 free_split_directories (prog_dirs);
2165 free_split_directories (bin_dirs);
2166 free_split_directories (prefix_dirs);
2170 /* Build up the pathnames in argv[0]. */
2171 for (i = 0; i < prog_num; i++)
2172 obstack_grow (&obstack, prog_dirs[i], strlen (prog_dirs[i]));
2174 /* Now build up the ..'s. */
2175 for (i = common; i < n; i++)
2177 obstack_grow (&obstack, DIR_UP, sizeof (DIR_UP)-1);
2178 obstack_1grow (&obstack, DIR_SEPARATOR);
2181 /* Put in directories to move over to prefix. */
2182 for (i = common; i < prefix_num; i++)
2183 obstack_grow (&obstack, prefix_dirs[i], strlen (prefix_dirs[i]));
2185 free_split_directories (prog_dirs);
2186 free_split_directories (bin_dirs);
2187 free_split_directories (prefix_dirs);
2189 obstack_1grow (&obstack, '\0');
2190 return obstack_finish (&obstack);
2194 /* Check whether NAME can be accessed in MODE. This is like access,
2195 except that it never considers directories to be executable. */
2198 access_check (name, mode)
2206 if (stat (name, &st) < 0
2207 || S_ISDIR (st.st_mode))
2211 return access (name, mode);
2214 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2215 access to check permissions.
2216 Return 0 if not found, otherwise return its name, allocated with malloc. */
2219 find_a_file (pprefix, name, mode)
2220 struct path_prefix *pprefix;
2225 const char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
2226 struct prefix_list *pl;
2227 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
2229 #ifdef DEFAULT_ASSEMBLER
2230 if (! strcmp(name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2231 return xstrdup (DEFAULT_ASSEMBLER);
2234 #ifdef DEFAULT_LINKER
2235 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2236 return xstrdup (DEFAULT_LINKER);
2240 len += strlen (machine_suffix);
2242 temp = xmalloc (len);
2244 /* Determine the filename to execute (special case for absolute paths). */
2246 if (IS_DIR_SEPARATOR (*name)
2247 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2248 /* Check for disk name on MS-DOS-based systems. */
2249 || (name[0] && name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2253 if (access (name, mode) == 0)
2255 strcpy (temp, name);
2260 for (pl = pprefix->plist; pl; pl = pl->next)
2264 /* Some systems have a suffix for executable files.
2265 So try appending that first. */
2266 if (file_suffix[0] != 0)
2268 strcpy (temp, pl->prefix);
2269 strcat (temp, machine_suffix);
2270 strcat (temp, name);
2271 strcat (temp, file_suffix);
2272 if (access_check (temp, mode) == 0)
2274 if (pl->used_flag_ptr != 0)
2275 *pl->used_flag_ptr = 1;
2280 /* Now try just the name. */
2281 strcpy (temp, pl->prefix);
2282 strcat (temp, machine_suffix);
2283 strcat (temp, name);
2284 if (access_check (temp, mode) == 0)
2286 if (pl->used_flag_ptr != 0)
2287 *pl->used_flag_ptr = 1;
2292 /* Certain prefixes are tried with just the machine type,
2293 not the version. This is used for finding as, ld, etc. */
2294 if (just_machine_suffix && pl->require_machine_suffix == 2)
2296 /* Some systems have a suffix for executable files.
2297 So try appending that first. */
2298 if (file_suffix[0] != 0)
2300 strcpy (temp, pl->prefix);
2301 strcat (temp, just_machine_suffix);
2302 strcat (temp, name);
2303 strcat (temp, file_suffix);
2304 if (access_check (temp, mode) == 0)
2306 if (pl->used_flag_ptr != 0)
2307 *pl->used_flag_ptr = 1;
2312 strcpy (temp, pl->prefix);
2313 strcat (temp, just_machine_suffix);
2314 strcat (temp, name);
2315 if (access_check (temp, mode) == 0)
2317 if (pl->used_flag_ptr != 0)
2318 *pl->used_flag_ptr = 1;
2323 /* Certain prefixes can't be used without the machine suffix
2324 when the machine or version is explicitly specified. */
2325 if (! pl->require_machine_suffix)
2327 /* Some systems have a suffix for executable files.
2328 So try appending that first. */
2329 if (file_suffix[0] != 0)
2331 strcpy (temp, pl->prefix);
2332 strcat (temp, name);
2333 strcat (temp, file_suffix);
2334 if (access_check (temp, mode) == 0)
2336 if (pl->used_flag_ptr != 0)
2337 *pl->used_flag_ptr = 1;
2342 strcpy (temp, pl->prefix);
2343 strcat (temp, name);
2344 if (access_check (temp, mode) == 0)
2346 if (pl->used_flag_ptr != 0)
2347 *pl->used_flag_ptr = 1;
2357 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
2358 at the start of the list, otherwise it goes at the end.
2360 If WARN is nonzero, we will warn if no file is found
2361 through this prefix. WARN should point to an int
2362 which will be set to 1 if this entry is used.
2364 COMPONENT is the value to be passed to update_path.
2366 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2367 the complete value of machine_suffix.
2368 2 means try both machine_suffix and just_machine_suffix. */
2371 add_prefix (pprefix, prefix, component, first, require_machine_suffix, warn)
2372 struct path_prefix *pprefix;
2374 const char *component;
2376 int require_machine_suffix;
2379 struct prefix_list *pl, **prev;
2382 if (! first && pprefix->plist)
2384 for (pl = pprefix->plist; pl->next; pl = pl->next)
2389 prev = &pprefix->plist;
2391 /* Keep track of the longest prefix */
2393 prefix = update_path (prefix, component);
2394 len = strlen (prefix);
2395 if (len > pprefix->max_len)
2396 pprefix->max_len = len;
2398 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
2399 pl->prefix = save_string (prefix, len);
2400 pl->require_machine_suffix = require_machine_suffix;
2401 pl->used_flag_ptr = warn;
2408 pl->next = (struct prefix_list *) 0;
2412 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
2415 unused_prefix_warnings (pprefix)
2416 struct path_prefix *pprefix;
2418 struct prefix_list *pl = pprefix->plist;
2422 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
2424 if (pl->require_machine_suffix && machine_suffix)
2425 error ("file path prefix `%s%s' never used", pl->prefix,
2428 error ("file path prefix `%s' never used", pl->prefix);
2430 /* Prevent duplicate warnings. */
2431 *pl->used_flag_ptr = 1;
2439 /* Execute the command specified by the arguments on the current line of spec.
2440 When using pipes, this includes several piped-together commands
2441 with `|' between them.
2443 Return 0 if successful, -1 if failed. */
2449 int n_commands; /* # of command. */
2453 const char *prog; /* program name. */
2454 char **argv; /* vector of args. */
2455 int pid; /* pid of process for this command. */
2458 struct command *commands; /* each command buffer with above info. */
2460 /* Count # of piped commands. */
2461 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2462 if (strcmp (argbuf[i], "|") == 0)
2465 /* Get storage for each command. */
2467 = (struct command *) alloca (n_commands * sizeof (struct command));
2469 /* Split argbuf into its separate piped processes,
2470 and record info about each one.
2471 Also search for the programs that are to be run. */
2473 commands[0].prog = argbuf[0]; /* first command. */
2474 commands[0].argv = &argbuf[0];
2475 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2478 commands[0].argv[0] = string;
2480 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2481 if (strcmp (argbuf[i], "|") == 0)
2482 { /* each command. */
2483 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2484 fatal ("-pipe not supported");
2486 argbuf[i] = 0; /* termination of command args. */
2487 commands[n_commands].prog = argbuf[i + 1];
2488 commands[n_commands].argv = &argbuf[i + 1];
2489 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2491 commands[n_commands].argv[0] = string;
2495 argbuf[argbuf_index] = 0;
2497 /* If -v, print what we are about to do, and maybe query. */
2501 /* For help listings, put a blank line between sub-processes. */
2502 if (print_help_list)
2503 fputc ('\n', stderr);
2505 /* Print each piped command as a separate line. */
2506 for (i = 0; i < n_commands ; i++)
2510 for (j = commands[i].argv; *j; j++)
2511 fprintf (stderr, " %s", *j);
2513 /* Print a pipe symbol after all but the last command. */
2514 if (i + 1 != n_commands)
2515 fprintf (stderr, " |");
2516 fprintf (stderr, "\n");
2520 notice ("\nGo ahead? (y or n) ");
2524 while (getchar () != '\n')
2527 if (i != 'y' && i != 'Y')
2532 /* Run each piped subprocess. */
2534 for (i = 0; i < n_commands; i++)
2536 char *errmsg_fmt, *errmsg_arg;
2537 char *string = commands[i].argv[0];
2539 commands[i].pid = pexecute (string, commands[i].argv,
2540 programname, temp_filename,
2541 &errmsg_fmt, &errmsg_arg,
2542 ((i == 0 ? PEXECUTE_FIRST : 0)
2543 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2544 | (string == commands[i].prog
2545 ? PEXECUTE_SEARCH : 0)
2546 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2548 if (commands[i].pid == -1)
2549 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2551 if (string != commands[i].prog)
2557 /* Wait for all the subprocesses to finish.
2558 We don't care what order they finish in;
2559 we know that N_COMMANDS waits will get them all.
2560 Ignore subprocesses that we don't know about,
2561 since they can be spawned by the process that exec'ed us. */
2565 #ifdef HAVE_GETRUSAGE
2567 double ut = 0.0, st = 0.0;
2570 for (i = 0; i < n_commands; )
2576 pid = pwait (commands[i].pid, &status, 0);
2580 #ifdef HAVE_GETRUSAGE
2583 /* getrusage returns the total resource usage of all children
2584 up to now. Copy the previous values into prus, get the
2585 current statistics, then take the difference. */
2588 getrusage (RUSAGE_CHILDREN, &rus);
2589 d.tv_sec = rus.ru_utime.tv_sec - prus.ru_utime.tv_sec;
2590 d.tv_usec = rus.ru_utime.tv_usec - prus.ru_utime.tv_usec;
2591 ut = (double)d.tv_sec + (double)d.tv_usec / 1.0e6;
2593 d.tv_sec = rus.ru_stime.tv_sec - prus.ru_stime.tv_sec;
2594 d.tv_usec = rus.ru_stime.tv_usec - prus.ru_stime.tv_usec;
2595 st = (double)d.tv_sec + (double)d.tv_usec / 1.0e6;
2599 for (j = 0; j < n_commands; j++)
2600 if (commands[j].pid == pid)
2605 if (WIFSIGNALED (status))
2607 fatal ("Internal compiler error: program %s got fatal signal %d",
2608 commands[j].prog, WTERMSIG (status));
2612 else if (WIFEXITED (status)
2613 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2615 if (WEXITSTATUS (status) > greatest_status)
2616 greatest_status = WEXITSTATUS (status);
2620 #ifdef HAVE_GETRUSAGE
2621 if (report_times && ut + st != 0)
2622 notice ("# %s %.2f %.2f\n", commands[j].prog, ut, st);
2631 /* Find all the switches given to us
2632 and make a vector describing them.
2633 The elements of the vector are strings, one per switch given.
2634 If a switch uses following arguments, then the `part1' field
2635 is the switch itself and the `args' field
2636 is a null-terminated vector containing the following arguments.
2637 The `live_cond' field is 1 if the switch is true in a conditional spec,
2638 -1 if false (overridden by a later switch), and is initialized to zero.
2639 The `validated' field is nonzero if any spec has looked at this switch;
2640 if it remains zero at the end of the run, it must be meaningless. */
2650 static struct switchstr *switches;
2652 static int n_switches;
2657 const char *language;
2660 /* Also a vector of input files specified. */
2662 static struct infile *infiles;
2664 static int n_infiles;
2666 /* This counts the number of libraries added by lang_specific_driver, so that
2667 we can tell if there were any user supplied any files or libraries. */
2669 static int added_libraries;
2671 /* And a vector of corresponding output files is made up later. */
2673 static const char **outfiles;
2675 /* Used to track if none of the -B paths are used. */
2678 /* Used to track if standard path isn't used and -b or -V is specified. */
2679 static int warn_std;
2681 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2682 static int *warn_std_ptr = 0;
2685 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2687 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2688 is true if we should look for an executable suffix as well. */
2691 convert_filename (name, do_exe)
2701 len = strlen (name);
2703 #ifdef HAVE_OBJECT_SUFFIX
2704 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2706 && name[len - 2] == '.'
2707 && name[len - 1] == 'o')
2709 obstack_grow (&obstack, name, len - 2);
2710 obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2711 name = obstack_finish (&obstack);
2715 #ifdef HAVE_EXECUTABLE_SUFFIX
2716 /* If there is no filetype, make it the executable suffix (which includes
2717 the "."). But don't get confused if we have just "-o". */
2718 if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2721 for (i = len - 1; i >= 0; i--)
2722 if (IS_DIR_SEPARATOR (name[i]))
2725 for (i++; i < len; i++)
2729 obstack_grow (&obstack, name, len);
2730 obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX));
2731 name = obstack_finish (&obstack);
2738 /* Display the command line switches accepted by gcc. */
2742 printf ("Usage: %s [options] file...\n", programname);
2743 printf ("Options:\n");
2745 printf (" -pass-exit-codes Exit with highest error code from a phase\n");
2746 printf (" --help Display this information\n");
2748 printf (" (Use '-v --help' to display command line options of sub-processes)\n");
2749 printf (" -dumpspecs Display all of the built in spec strings\n");
2750 printf (" -dumpversion Display the version of the compiler\n");
2751 printf (" -dumpmachine Display the compiler's target processor\n");
2752 printf (" -print-search-dirs Display the directories in the compiler's search path\n");
2753 printf (" -print-libgcc-file-name Display the name of the compiler's companion library\n");
2754 printf (" -print-file-name=<lib> Display the full path to library <lib>\n");
2755 printf (" -print-prog-name=<prog> Display the full path to compiler component <prog>\n");
2756 printf (" -print-multi-directory Display the root directory for versions of libgcc\n");
2757 printf (" -print-multi-lib Display the mapping between command line options and\n");
2758 printf (" multiple library search directories\n");
2759 printf (" -Wa,<options> Pass comma-separated <options> on to the assembler\n");
2760 printf (" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n");
2761 printf (" -Wl,<options> Pass comma-separated <options> on to the linker\n");
2762 printf (" -Xlinker <arg> Pass <arg> on to the linker\n");
2763 printf (" -save-temps Do not delete intermediate files\n");
2764 printf (" -pipe Use pipes rather than intermediate files\n");
2765 printf (" -time Time the execution of each subprocess\n");
2766 printf (" -specs=<file> Override builtin specs with the contents of <file>\n");
2767 printf (" -std=<standard> Assume that the input sources are for <standard>\n");
2768 printf (" -B <directory> Add <directory> to the compiler's search paths\n");
2769 printf (" -b <machine> Run gcc for target <machine>, if installed\n");
2770 printf (" -V <version> Run gcc version number <version>, if installed\n");
2771 printf (" -v Display the programs invoked by the compiler\n");
2772 printf (" -E Preprocess only; do not compile, assemble or link\n");
2773 printf (" -S Compile only; do not assemble or link\n");
2774 printf (" -c Compile and assemble, but do not link\n");
2775 printf (" -o <file> Place the output into <file>\n");
2776 printf (" -x <language> Specify the language of the following input files\n");
2777 printf (" Permissable languages include: c c++ assembler none\n");
2778 printf (" 'none' means revert to the default behaviour of\n");
2779 printf (" guessing the language based on the file's extension\n");
2781 printf ("\nOptions starting with -g, -f, -m, -O or -W are automatically passed on to\n");
2782 printf ("the various sub-processes invoked by %s. In order to pass other options\n",
2784 printf ("on to these processes the -W<letter> options must be used.\n");
2786 /* The rest of the options are displayed by invocations of the various
2791 add_preprocessor_option (option, len)
2792 const char * option;
2795 n_preprocessor_options++;
2797 if (! preprocessor_options)
2798 preprocessor_options
2799 = (char **) xmalloc (n_preprocessor_options * sizeof (char *));
2801 preprocessor_options
2802 = (char **) xrealloc (preprocessor_options,
2803 n_preprocessor_options * sizeof (char *));
2805 preprocessor_options [n_preprocessor_options - 1] =
2806 save_string (option, len);
2810 add_assembler_option (option, len)
2811 const char * option;
2814 n_assembler_options++;
2816 if (! assembler_options)
2818 = (char **) xmalloc (n_assembler_options * sizeof (char *));
2821 = (char **) xrealloc (assembler_options,
2822 n_assembler_options * sizeof (char *));
2824 assembler_options [n_assembler_options - 1] = save_string (option, len);
2828 add_linker_option (option, len)
2829 const char * option;
2834 if (! linker_options)
2836 = (char **) xmalloc (n_linker_options * sizeof (char *));
2839 = (char **) xrealloc (linker_options,
2840 n_linker_options * sizeof (char *));
2842 linker_options [n_linker_options - 1] = save_string (option, len);
2845 /* Create the vector `switches' and its contents.
2846 Store its length in `n_switches'. */
2849 process_command (argc, argv)
2856 char *spec_lang = 0;
2857 int last_language_n_infiles;
2860 int lang_n_infiles = 0;
2862 GET_ENV_PATH_LIST (gcc_exec_prefix, "GCC_EXEC_PREFIX");
2866 added_libraries = 0;
2868 /* Figure compiler version from version string. */
2870 compiler_version = temp1 = xstrdup (version_string);
2872 for (; *temp1; ++temp1)
2881 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
2882 see if we can create it from the pathname specified in argv[0]. */
2885 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
2886 if (!gcc_exec_prefix)
2888 gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
2889 standard_exec_prefix);
2890 if (gcc_exec_prefix)
2891 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL_PTR));
2895 if (gcc_exec_prefix)
2897 int len = strlen (gcc_exec_prefix);
2898 if (len > (int) sizeof ("/lib/gcc-lib/")-1
2899 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
2901 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1;
2902 if (IS_DIR_SEPARATOR (*temp)
2903 && strncmp (temp+1, "lib", 3) == 0
2904 && IS_DIR_SEPARATOR (temp[4])
2905 && strncmp (temp+5, "gcc-lib", 7) == 0)
2906 len -= sizeof ("/lib/gcc-lib/") - 1;
2909 set_std_prefix (gcc_exec_prefix, len);
2910 add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC", 0, 0, NULL_PTR);
2911 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC", 0, 0, NULL_PTR);
2914 /* COMPILER_PATH and LIBRARY_PATH have values
2915 that are lists of directory names with colons. */
2917 GET_ENV_PATH_LIST (temp, "COMPILER_PATH");
2920 const char *startp, *endp;
2921 char *nstore = (char *) alloca (strlen (temp) + 3);
2923 startp = endp = temp;
2926 if (*endp == PATH_SEPARATOR || *endp == 0)
2928 strncpy (nstore, startp, endp-startp);
2930 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2931 else if (!IS_DIR_SEPARATOR (endp[-1]))
2933 nstore[endp-startp] = DIR_SEPARATOR;
2934 nstore[endp-startp+1] = 0;
2937 nstore[endp-startp] = 0;
2938 add_prefix (&exec_prefixes, nstore, 0, 0, 0, NULL_PTR);
2939 add_prefix (&include_prefixes,
2940 concat (nstore, "include", NULL_PTR),
2944 endp = startp = endp + 1;
2951 GET_ENV_PATH_LIST (temp, LIBRARY_PATH_ENV);
2952 if (temp && *cross_compile == '0')
2954 const char *startp, *endp;
2955 char *nstore = (char *) alloca (strlen (temp) + 3);
2957 startp = endp = temp;
2960 if (*endp == PATH_SEPARATOR || *endp == 0)
2962 strncpy (nstore, startp, endp-startp);
2964 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2965 else if (!IS_DIR_SEPARATOR (endp[-1]))
2967 nstore[endp-startp] = DIR_SEPARATOR;
2968 nstore[endp-startp+1] = 0;
2971 nstore[endp-startp] = 0;
2972 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
2976 endp = startp = endp + 1;
2983 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2984 GET_ENV_PATH_LIST (temp, "LPATH");
2985 if (temp && *cross_compile == '0')
2987 const char *startp, *endp;
2988 char *nstore = (char *) alloca (strlen (temp) + 3);
2990 startp = endp = temp;
2993 if (*endp == PATH_SEPARATOR || *endp == 0)
2995 strncpy (nstore, startp, endp-startp);
2997 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2998 else if (!IS_DIR_SEPARATOR (endp[-1]))
3000 nstore[endp-startp] = DIR_SEPARATOR;
3001 nstore[endp-startp+1] = 0;
3004 nstore[endp-startp] = 0;
3005 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
3009 endp = startp = endp + 1;
3016 /* Convert new-style -- options to old-style. */
3017 translate_options (&argc, &argv);
3019 /* Do language-specific adjustment/addition of flags. */
3020 lang_specific_driver (&argc, &argv, &added_libraries);
3022 /* Scan argv twice. Here, the first time, just count how many switches
3023 there will be in their vector, and how many input files in theirs.
3024 Here we also parse the switches that cc itself uses (e.g. -v). */
3026 for (i = 1; i < argc; i++)
3028 if (! strcmp (argv[i], "-dumpspecs"))
3030 struct spec_list *sl;
3032 for (sl = specs; sl; sl = sl->next)
3033 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3034 if (link_command_spec)
3035 printf ("*link_command:\n%s\n\n", link_command_spec);
3038 else if (! strcmp (argv[i], "-dumpversion"))
3040 printf ("%s\n", spec_version);
3043 else if (! strcmp (argv[i], "-dumpmachine"))
3045 printf ("%s\n", spec_machine);
3048 else if (strcmp (argv[i], "-fhelp") == 0)
3050 /* translate_options () has turned --help into -fhelp. */
3051 print_help_list = 1;
3053 /* We will be passing a dummy file on to the sub-processes. */
3057 add_preprocessor_option ("--help", 6);
3058 add_assembler_option ("--help", 6);
3059 add_linker_option ("--help", 6);
3061 else if (! strcmp (argv[i], "-pass-exit-codes"))
3063 pass_exit_codes = 1;
3066 else if (! strcmp (argv[i], "-print-search-dirs"))
3067 print_search_dirs = 1;
3068 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3069 print_file_name = "libgcc.a";
3070 else if (! strncmp (argv[i], "-print-file-name=", 17))
3071 print_file_name = argv[i] + 17;
3072 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3073 print_prog_name = argv[i] + 17;
3074 else if (! strcmp (argv[i], "-print-multi-lib"))
3075 print_multi_lib = 1;
3076 else if (! strcmp (argv[i], "-print-multi-directory"))
3077 print_multi_directory = 1;
3078 else if (! strncmp (argv[i], "-Wa,", 4))
3081 /* Pass the rest of this option to the assembler. */
3083 /* Split the argument at commas. */
3085 for (j = 4; argv[i][j]; j++)
3086 if (argv[i][j] == ',')
3088 add_assembler_option (argv[i] + prev, j - prev);
3092 /* Record the part after the last comma. */
3093 add_assembler_option (argv[i] + prev, j - prev);
3095 else if (! strncmp (argv[i], "-Wp,", 4))
3098 /* Pass the rest of this option to the preprocessor. */
3100 /* Split the argument at commas. */
3102 for (j = 4; argv[i][j]; j++)
3103 if (argv[i][j] == ',')
3105 add_preprocessor_option (argv[i] + prev, j - prev);
3109 /* Record the part after the last comma. */
3110 add_preprocessor_option (argv[i] + prev, j - prev);
3112 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3113 /* The +e options to the C++ front-end. */
3115 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3118 /* Split the argument at commas. */
3119 for (j = 3; argv[i][j]; j++)
3120 n_infiles += (argv[i][j] == ',');
3122 else if (strcmp (argv[i], "-Xlinker") == 0)
3125 fatal ("argument to `-Xlinker' is missing");
3130 else if (strncmp (argv[i], "-l", 2) == 0)
3132 else if (strcmp (argv[i], "-save-temps") == 0)
3134 save_temps_flag = 1;
3137 else if (strcmp (argv[i], "-specs") == 0)
3139 struct user_specs *user = (struct user_specs *)
3140 xmalloc (sizeof (struct user_specs));
3142 fatal ("argument to `-specs' is missing");
3144 user->next = (struct user_specs *)0;
3145 user->filename = argv[i];
3146 if (user_specs_tail)
3147 user_specs_tail->next = user;
3149 user_specs_head = user;
3150 user_specs_tail = user;
3152 else if (strncmp (argv[i], "-specs=", 7) == 0)
3154 struct user_specs *user = (struct user_specs *)
3155 xmalloc (sizeof (struct user_specs));
3156 if (strlen (argv[i]) == 7)
3157 fatal ("argument to `-specs=' is missing");
3159 user->next = (struct user_specs *)0;
3160 user->filename = argv[i]+7;
3161 if (user_specs_tail)
3162 user_specs_tail->next = user;
3164 user_specs_head = user;
3165 user_specs_tail = user;
3167 else if (strcmp (argv[i], "-time") == 0)
3169 else if (argv[i][0] == '-' && argv[i][1] != 0)
3171 register char *p = &argv[i][1];
3172 register int c = *p;
3178 if (p[1] == 0 && i + 1 == argc)
3179 fatal ("argument to `-b' is missing");
3181 spec_machine = argv[++i];
3183 spec_machine = p + 1;
3185 warn_std_ptr = &warn_std;
3191 if (p[1] == 0 && i + 1 == argc)
3192 fatal ("argument to `-B' is missing");
3197 add_prefix (&exec_prefixes, value, NULL_PTR, 1, 0, &warn_B);
3198 add_prefix (&startfile_prefixes, value, NULL_PTR,
3200 add_prefix (&include_prefixes, concat (value, "include",
3202 NULL_PTR, 1, 0, NULL_PTR);
3204 /* As a kludge, if the arg is "[foo/]stageN/", just add
3205 "[foo/]include" to the include prefix. */
3207 int len = strlen (value);
3210 && (IS_DIR_SEPARATOR (value[len - 8]))))
3211 && strncmp (value + len - 7, "stage", 5) == 0
3212 && ISDIGIT (value[len - 2])
3213 && (IS_DIR_SEPARATOR (value[len - 1])))
3216 add_prefix (&include_prefixes, "include", NULL_PTR,
3220 char *string = xmalloc (len + 1);
3221 strncpy (string, value, len-7);
3222 strcpy (string+len-7, "include");
3223 add_prefix (&include_prefixes, string, NULL_PTR,
3232 case 'v': /* Print our subcommands and print versions. */
3234 /* If they do anything other than exactly `-v', don't set
3235 verbose_flag; rather, continue on to give the error. */
3243 if (p[1] == 0 && i + 1 == argc)
3244 fatal ("argument to `-V' is missing");
3246 spec_version = argv[++i];
3248 spec_version = p + 1;
3249 compiler_version = spec_version;
3250 warn_std_ptr = &warn_std;
3252 /* Validate the version number. Use the same checks
3253 done when inserting it into a spec.
3255 The format of the version string is
3256 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3258 const char *v = compiler_version;
3260 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3261 while (! ISDIGIT (*v))
3264 if (v > compiler_version && v[-1] != '-')
3265 fatal ("invalid version number format");
3267 /* Set V after the first period. */
3268 while (ISDIGIT (*v))
3272 fatal ("invalid version number format");
3275 while (ISDIGIT (*v))
3278 if (*v != 0 && *v != ' ' && *v != '.' && *v != '-')
3279 fatal ("invalid version number format");
3295 #if defined(HAVE_EXECUTABLE_SUFFIX)
3300 /* Forward scan, just in case -S or -c is specified
3307 if (argv[j][0] == '-')
3309 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3315 else if (skip = SWITCH_TAKES_ARG (argv[j][1]))
3316 j += skip - (argv[j][2] != 0);
3317 else if (skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1))
3324 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
3326 argv[i+1] = convert_filename (argv[i+1], ! have_c);
3328 argv[i] = convert_filename (argv[i], ! have_c);
3336 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3337 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3338 else if (WORD_SWITCH_TAKES_ARG (p))
3339 i += WORD_SWITCH_TAKES_ARG (p);
3349 if (have_c && have_o && lang_n_infiles > 1)
3350 fatal ("cannot specify -o with -c or -S and multiple compilations");
3352 /* Set up the search paths before we go looking for config files. */
3354 /* These come before the md prefixes so that we will find gcc's subcommands
3355 (such as cpp) rather than those of the host system. */
3356 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3357 as well as trying the machine and the version. */
3359 add_prefix (&exec_prefixes, standard_exec_prefix, "GCC",
3360 0, 1, warn_std_ptr);
3361 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3362 0, 2, warn_std_ptr);
3363 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3364 0, 2, warn_std_ptr);
3367 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3368 0, 1, warn_std_ptr);
3369 add_prefix (&startfile_prefixes, standard_exec_prefix_1, "BINUTILS",
3370 0, 1, warn_std_ptr);
3372 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3373 dir_separator_str, NULL_PTR);
3375 /* If tooldir is relative, base it on exec_prefixes. A relative
3376 tooldir lets us move the installed tree as a unit.
3378 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3379 directories, so that we can search both the user specified directory
3380 and the standard place. */
3382 if (!IS_DIR_SEPARATOR (*tooldir_prefix))
3384 if (gcc_exec_prefix)
3386 char *gcc_exec_tooldir_prefix
3387 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
3388 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
3390 add_prefix (&exec_prefixes,
3391 concat (gcc_exec_tooldir_prefix, "bin",
3392 dir_separator_str, NULL_PTR),
3393 NULL_PTR, 0, 0, NULL_PTR);
3394 add_prefix (&startfile_prefixes,
3395 concat (gcc_exec_tooldir_prefix, "lib",
3396 dir_separator_str, NULL_PTR),
3397 NULL_PTR, 0, 0, NULL_PTR);
3400 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
3401 dir_separator_str, spec_version,
3402 dir_separator_str, tooldir_prefix, NULL_PTR);
3405 add_prefix (&exec_prefixes,
3406 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
3407 "BINUTILS", 0, 0, NULL_PTR);
3408 add_prefix (&startfile_prefixes,
3409 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
3410 "BINUTILS", 0, 0, NULL_PTR);
3412 /* More prefixes are enabled in main, after we read the specs file
3413 and determine whether this is cross-compilation or not. */
3416 /* Then create the space for the vectors and scan again. */
3418 switches = ((struct switchstr *)
3419 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
3420 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
3423 last_language_n_infiles = -1;
3425 /* This, time, copy the text of each switch and store a pointer
3426 to the copy in the vector of switches.
3427 Store all the infiles in their vector. */
3429 for (i = 1; i < argc; i++)
3431 /* Just skip the switches that were handled by the preceding loop. */
3432 if (! strncmp (argv[i], "-Wa,", 4))
3434 else if (! strncmp (argv[i], "-Wp,", 4))
3436 else if (! strcmp (argv[i], "-pass-exit-codes"))
3438 else if (! strcmp (argv[i], "-print-search-dirs"))
3440 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3442 else if (! strncmp (argv[i], "-print-file-name=", 17))
3444 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3446 else if (! strcmp (argv[i], "-print-multi-lib"))
3448 else if (! strcmp (argv[i], "-print-multi-directory"))
3450 else if (strcmp (argv[i], "-fhelp") == 0)
3454 /* Create a dummy input file, so that we can pass --help on to
3455 the various sub-processes. */
3456 infiles[n_infiles].language = "c";
3457 infiles[n_infiles++].name = "help-dummy";
3459 /* Preserve the --help switch so that it can be caught by the
3461 switches[n_switches].part1 = "--help";
3462 switches[n_switches].args = 0;
3463 switches[n_switches].live_cond = 0;
3464 switches[n_switches].validated = 0;
3469 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3471 /* Compensate for the +e options to the C++ front-end;
3472 they're there simply for cfront call-compatibility. We do
3473 some magic in default_compilers to pass them down properly.
3474 Note we deliberately start at the `+' here, to avoid passing
3475 -e0 or -e1 down into the linker. */
3476 switches[n_switches].part1 = &argv[i][0];
3477 switches[n_switches].args = 0;
3478 switches[n_switches].live_cond = 0;
3479 switches[n_switches].validated = 0;
3482 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3485 /* Split the argument at commas. */
3487 for (j = 4; argv[i][j]; j++)
3488 if (argv[i][j] == ',')
3490 infiles[n_infiles].language = "*";
3491 infiles[n_infiles++].name
3492 = save_string (argv[i] + prev, j - prev);
3495 /* Record the part after the last comma. */
3496 infiles[n_infiles].language = "*";
3497 infiles[n_infiles++].name = argv[i] + prev;
3499 else if (strcmp (argv[i], "-Xlinker") == 0)
3501 infiles[n_infiles].language = "*";
3502 infiles[n_infiles++].name = argv[++i];
3504 else if (strncmp (argv[i], "-l", 2) == 0)
3506 infiles[n_infiles].language = "*";
3507 infiles[n_infiles++].name = argv[i];
3509 else if (strcmp (argv[i], "-specs") == 0)
3511 else if (strncmp (argv[i], "-specs=", 7) == 0)
3513 else if (strcmp (argv[i], "-time") == 0)
3515 else if ((save_temps_flag || report_times)
3516 && strcmp (argv[i], "-pipe") == 0)
3518 /* -save-temps overrides -pipe, so that temp files are produced */
3519 if (save_temps_flag)
3520 error ("Warning: -pipe ignored since -save-temps specified");
3521 /* -time overrides -pipe because we can't get correct stats when
3522 multiple children are running at once. */
3523 else if (report_times)
3524 error ("Warning: -pipe ignored since -time specified");
3526 else if (argv[i][0] == '-' && argv[i][1] != 0)
3528 register char *p = &argv[i][1];
3529 register int c = *p;
3533 if (p[1] == 0 && i + 1 == argc)
3534 fatal ("argument to `-x' is missing");
3536 spec_lang = argv[++i];
3539 if (! strcmp (spec_lang, "none"))
3540 /* Suppress the warning if -xnone comes after the last input
3541 file, because alternate command interfaces like g++ might
3542 find it useful to place -xnone after each input file. */
3545 last_language_n_infiles = n_infiles;
3548 switches[n_switches].part1 = p;
3549 /* Deal with option arguments in separate argv elements. */
3550 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
3551 || WORD_SWITCH_TAKES_ARG (p))
3554 int n_args = WORD_SWITCH_TAKES_ARG (p);
3558 /* Count only the option arguments in separate argv elements. */
3559 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
3561 if (i + n_args >= argc)
3562 fatal ("argument to `-%s' is missing", p);
3563 switches[n_switches].args
3564 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
3566 switches[n_switches].args[j++] = argv[++i];
3567 /* Null-terminate the vector. */
3568 switches[n_switches].args[j] = 0;
3570 else if (index (switches_need_spaces, c))
3572 /* On some systems, ld cannot handle some options without
3573 a space. So split the option from its argument. */
3574 char *part1 = (char *) xmalloc (2);
3578 switches[n_switches].part1 = part1;
3579 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
3580 switches[n_switches].args[0] = xmalloc (strlen (p));
3581 strcpy (switches[n_switches].args[0], &p[1]);
3582 switches[n_switches].args[1] = 0;
3585 switches[n_switches].args = 0;
3587 switches[n_switches].live_cond = 0;
3588 switches[n_switches].validated = 0;
3589 /* This is always valid, since gcc.c itself understands it. */
3590 if (!strcmp (p, "save-temps"))
3591 switches[n_switches].validated = 1;
3594 char ch = switches[n_switches].part1[0];
3595 if (ch == 'V' || ch == 'b' || ch == 'B')
3596 switches[n_switches].validated = 1;
3602 #ifdef HAVE_OBJECT_SUFFIX
3603 argv[i] = convert_filename (argv[i], 0);
3606 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
3608 perror_with_name (argv[i]);
3613 infiles[n_infiles].language = spec_lang;
3614 infiles[n_infiles++].name = argv[i];
3619 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3620 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
3622 switches[n_switches].part1 = 0;
3623 infiles[n_infiles].name = 0;
3626 /* Process a spec string, accumulating and running commands. */
3628 /* These variables describe the input file name.
3629 input_file_number is the index on outfiles of this file,
3630 so that the output file name can be stored for later use by %o.
3631 input_basename is the start of the part of the input file
3632 sans all directory names, and basename_length is the number
3633 of characters starting there excluding the suffix .c or whatever. */
3635 const char *input_filename;
3636 static int input_file_number;
3637 size_t input_filename_length;
3638 static int basename_length;
3639 static const char *input_basename;
3640 static const char *input_suffix;
3642 /* These are variables used within do_spec and do_spec_1. */
3644 /* Nonzero if an arg has been started and not yet terminated
3645 (with space, tab or newline). */
3646 static int arg_going;
3648 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3649 is a temporary file name. */
3650 static int delete_this_arg;
3652 /* Nonzero means %w has been seen; the next arg to be terminated
3653 is the output file name of this compilation. */
3654 static int this_is_output_file;
3656 /* Nonzero means %s has been seen; the next arg to be terminated
3657 is the name of a library file and we should try the standard
3658 search dirs for it. */
3659 static int this_is_library_file;
3661 /* Nonzero means that the input of this command is coming from a pipe. */
3662 static int input_from_pipe;
3664 /* Process the spec SPEC and run the commands specified therein.
3665 Returns 0 if the spec is successfully processed; -1 if failed. */
3675 delete_this_arg = 0;
3676 this_is_output_file = 0;
3677 this_is_library_file = 0;
3678 input_from_pipe = 0;
3680 value = do_spec_1 (spec, 0, NULL_PTR);
3682 /* Force out any unfinished command.
3683 If -pipe, this forces out the last command if it ended in `|'. */
3686 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3689 if (argbuf_index > 0)
3696 /* Process the sub-spec SPEC as a portion of a larger spec.
3697 This is like processing a whole spec except that we do
3698 not initialize at the beginning and we do not supply a
3699 newline by default at the end.
3700 INSWITCH nonzero means don't process %-sequences in SPEC;
3701 in this case, % is treated as an ordinary character.
3702 This is used while substituting switches.
3703 INSWITCH nonzero also causes SPC not to terminate an argument.
3705 Value is zero unless a line was finished
3706 and the command on that line reported an error. */
3709 do_spec_1 (spec, inswitch, soft_matched_part)
3712 const char *soft_matched_part;
3714 register const char *p = spec;
3721 /* If substituting a switch, treat all chars like letters.
3722 Otherwise, NL, SPC, TAB and % are special. */
3723 switch (inswitch ? 'a' : c)
3726 /* End of line: finish any pending argument,
3727 then run the pending command if one has been started. */
3730 obstack_1grow (&obstack, 0);
3731 string = obstack_finish (&obstack);
3732 if (this_is_library_file)
3733 string = find_file (string);
3734 store_arg (string, delete_this_arg, this_is_output_file);
3735 if (this_is_output_file)
3736 outfiles[input_file_number] = string;
3740 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3742 for (i = 0; i < n_switches; i++)
3743 if (!strcmp (switches[i].part1, "pipe"))
3746 /* A `|' before the newline means use a pipe here,
3747 but only if -pipe was specified.
3748 Otherwise, execute now and don't pass the `|' as an arg. */
3751 input_from_pipe = 1;
3752 switches[i].validated = 1;
3759 if (argbuf_index > 0)
3765 /* Reinitialize for a new command, and for a new argument. */
3768 delete_this_arg = 0;
3769 this_is_output_file = 0;
3770 this_is_library_file = 0;
3771 input_from_pipe = 0;
3775 /* End any pending argument. */
3778 obstack_1grow (&obstack, 0);
3779 string = obstack_finish (&obstack);
3780 if (this_is_library_file)
3781 string = find_file (string);
3782 store_arg (string, delete_this_arg, this_is_output_file);
3783 if (this_is_output_file)
3784 outfiles[input_file_number] = string;
3788 obstack_1grow (&obstack, c);
3794 /* Space or tab ends an argument if one is pending. */
3797 obstack_1grow (&obstack, 0);
3798 string = obstack_finish (&obstack);
3799 if (this_is_library_file)
3800 string = find_file (string);
3801 store_arg (string, delete_this_arg, this_is_output_file);
3802 if (this_is_output_file)
3803 outfiles[input_file_number] = string;
3805 /* Reinitialize for a new argument. */
3807 delete_this_arg = 0;
3808 this_is_output_file = 0;
3809 this_is_library_file = 0;
3816 fatal ("Invalid specification! Bug in cc.");
3819 obstack_grow (&obstack, input_basename, basename_length);
3824 delete_this_arg = 2;
3827 /* Dump out the directories specified with LIBRARY_PATH,
3828 followed by the absolute directories
3829 that we search for startfiles. */
3832 struct prefix_list *pl = startfile_prefixes.plist;
3833 size_t bufsize = 100;
3834 char *buffer = (char *) xmalloc (bufsize);
3837 for (; pl; pl = pl->next)
3839 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3840 /* Used on systems which record the specified -L dirs
3841 and use them to search for dynamic linking. */
3842 /* Relative directories always come from -B,
3843 and it is better not to use them for searching
3844 at run time. In particular, stage1 loses */
3845 if (!IS_DIR_SEPARATOR (pl->prefix[0]))
3848 /* Try subdirectory if there is one. */
3849 if (multilib_dir != NULL)
3853 if (strlen (pl->prefix) + strlen (machine_suffix)
3855 bufsize = (strlen (pl->prefix)
3856 + strlen (machine_suffix)) * 2 + 1;
3857 buffer = (char *) xrealloc (buffer, bufsize);
3858 strcpy (buffer, pl->prefix);
3859 strcat (buffer, machine_suffix);
3860 if (is_directory (buffer, multilib_dir, 1))
3862 do_spec_1 ("-L", 0, NULL_PTR);
3863 #ifdef SPACE_AFTER_L_OPTION
3864 do_spec_1 (" ", 0, NULL_PTR);
3866 do_spec_1 (buffer, 1, NULL_PTR);
3867 do_spec_1 (multilib_dir, 1, NULL_PTR);
3868 /* Make this a separate argument. */
3869 do_spec_1 (" ", 0, NULL_PTR);
3872 if (!pl->require_machine_suffix)
3874 if (is_directory (pl->prefix, multilib_dir, 1))
3876 do_spec_1 ("-L", 0, NULL_PTR);
3877 #ifdef SPACE_AFTER_L_OPTION
3878 do_spec_1 (" ", 0, NULL_PTR);
3880 do_spec_1 (pl->prefix, 1, NULL_PTR);
3881 do_spec_1 (multilib_dir, 1, NULL_PTR);
3882 /* Make this a separate argument. */
3883 do_spec_1 (" ", 0, NULL_PTR);
3889 if (is_directory (pl->prefix, machine_suffix, 1))
3891 do_spec_1 ("-L", 0, NULL_PTR);
3892 #ifdef SPACE_AFTER_L_OPTION
3893 do_spec_1 (" ", 0, NULL_PTR);
3895 do_spec_1 (pl->prefix, 1, NULL_PTR);
3896 /* Remove slash from machine_suffix. */
3897 if (strlen (machine_suffix) >= bufsize)
3898 bufsize = strlen (machine_suffix) * 2 + 1;
3899 buffer = (char *) xrealloc (buffer, bufsize);
3900 strcpy (buffer, machine_suffix);
3901 idx = strlen (buffer);
3902 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
3903 buffer[idx - 1] = 0;
3904 do_spec_1 (buffer, 1, NULL_PTR);
3905 /* Make this a separate argument. */
3906 do_spec_1 (" ", 0, NULL_PTR);
3909 if (!pl->require_machine_suffix)
3911 if (is_directory (pl->prefix, "", 1))
3913 do_spec_1 ("-L", 0, NULL_PTR);
3914 #ifdef SPACE_AFTER_L_OPTION
3915 do_spec_1 (" ", 0, NULL_PTR);
3917 /* Remove slash from pl->prefix. */
3918 if (strlen (pl->prefix) >= bufsize)
3919 bufsize = strlen (pl->prefix) * 2 + 1;
3920 buffer = (char *) xrealloc (buffer, bufsize);
3921 strcpy (buffer, pl->prefix);
3922 idx = strlen (buffer);
3923 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
3924 buffer[idx - 1] = 0;
3925 do_spec_1 (buffer, 1, NULL_PTR);
3926 /* Make this a separate argument. */
3927 do_spec_1 (" ", 0, NULL_PTR);
3936 /* %efoo means report an error with `foo' as error message
3937 and don't execute any more commands for this file. */
3941 while (*p != 0 && *p != '\n') p++;
3942 buf = (char *) alloca (p - q + 1);
3943 strncpy (buf, q, p - q);
3953 if (save_temps_flag)
3955 obstack_grow (&obstack, input_basename, basename_length);
3956 delete_this_arg = 0;
3960 #ifdef MKTEMP_EACH_FILE
3961 /* ??? This has a problem: the total number of
3962 values mktemp can return is limited.
3963 That matters for the names of object files.
3964 In 2.4, do something about that. */
3965 struct temp_name *t;
3967 const char *suffix = p;
3968 char *saved_suffix = NULL;
3970 while (*p == '.' || ISALPHA ((unsigned char)*p))
3972 suffix_length = p - suffix;
3973 if (p[0] == '%' && p[1] == 'O')
3976 /* We don't support extra suffix characters after %O. */
3977 if (*p == '.' || ISALPHA ((unsigned char)*p))
3979 if (suffix_length == 0)
3980 suffix = OBJECT_SUFFIX;
3984 = (char *) xmalloc (suffix_length
3985 + strlen (OBJECT_SUFFIX));
3986 strncpy (saved_suffix, suffix, suffix_length);
3987 strcpy (saved_suffix + suffix_length,
3990 suffix_length += strlen (OBJECT_SUFFIX);
3993 /* See if we already have an association of %g/%u/%U and
3995 for (t = temp_names; t; t = t->next)
3996 if (t->length == suffix_length
3997 && strncmp (t->suffix, suffix, suffix_length) == 0
3998 && t->unique == (c != 'g'))
4001 /* Make a new association if needed. %u requires one. */
4002 if (t == 0 || c == 'u')
4006 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
4007 t->next = temp_names;
4010 t->length = suffix_length;
4011 t->suffix = save_string (suffix, suffix_length);
4012 t->unique = (c != 'g');
4013 temp_filename = make_temp_file (t->suffix);
4014 temp_filename_length = strlen (temp_filename);
4015 t->filename = temp_filename;
4016 t->filename_length = temp_filename_length;
4020 free (saved_suffix);
4022 obstack_grow (&obstack, t->filename, t->filename_length);
4023 delete_this_arg = 1;
4025 obstack_grow (&obstack, temp_filename, temp_filename_length);
4026 if (c == 'u' || c == 'U')
4032 sprintf (buff, "%d", unique);
4033 obstack_grow (&obstack, buff, strlen (buff));
4036 delete_this_arg = 1;
4042 obstack_grow (&obstack, input_filename, input_filename_length);
4048 struct prefix_list *pl = include_prefixes.plist;
4050 if (gcc_exec_prefix)
4052 do_spec_1 ("-iprefix", 1, NULL_PTR);
4053 /* Make this a separate argument. */
4054 do_spec_1 (" ", 0, NULL_PTR);
4055 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
4056 do_spec_1 (" ", 0, NULL_PTR);
4059 for (; pl; pl = pl->next)
4061 do_spec_1 ("-isystem", 1, NULL_PTR);
4062 /* Make this a separate argument. */
4063 do_spec_1 (" ", 0, NULL_PTR);
4064 do_spec_1 (pl->prefix, 1, NULL_PTR);
4065 do_spec_1 (" ", 0, NULL_PTR);
4072 int max = n_infiles;
4073 max += lang_specific_extra_outfiles;
4075 for (i = 0; i < max; i++)
4077 store_arg (outfiles[i], 0, 0);
4082 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
4087 this_is_library_file = 1;
4091 this_is_output_file = 1;
4096 int cur_index = argbuf_index;
4097 /* Handle the {...} following the %W. */
4100 p = handle_braces (p + 1);
4103 /* If any args were output, mark the last one for deletion
4105 if (argbuf_index != cur_index)
4106 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
4110 /* %x{OPTION} records OPTION for %X to output. */
4116 /* Skip past the option value and make a copy. */
4121 string = save_string (p1 + 1, p - p1 - 2);
4123 /* See if we already recorded this option. */
4124 for (i = 0; i < n_linker_options; i++)
4125 if (! strcmp (string, linker_options[i]))
4131 /* This option is new; add it. */
4132 add_linker_option (string, strlen (string));
4136 /* Dump out the options accumulated previously using %x. */
4138 for (i = 0; i < n_linker_options; i++)
4140 do_spec_1 (linker_options[i], 1, NULL_PTR);
4141 /* Make each accumulated option a separate argument. */
4142 do_spec_1 (" ", 0, NULL_PTR);
4146 /* Dump out the options accumulated previously using -Wa,. */
4148 for (i = 0; i < n_assembler_options; i++)
4150 do_spec_1 (assembler_options[i], 1, NULL_PTR);
4151 /* Make each accumulated option a separate argument. */
4152 do_spec_1 (" ", 0, NULL_PTR);
4156 /* Dump out the options accumulated previously using -Wp,. */
4158 for (i = 0; i < n_preprocessor_options; i++)
4160 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
4161 /* Make each accumulated option a separate argument. */
4162 do_spec_1 (" ", 0, NULL_PTR);
4166 /* Here are digits and numbers that just process
4167 a certain constant string as a spec. */
4170 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
4176 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
4182 value = do_spec_1 (asm_spec, 0, NULL_PTR);
4188 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
4194 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
4200 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
4206 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
4212 value = do_spec_1 (link_spec, 0, NULL_PTR);
4218 value = do_spec_1 (lib_spec, 0, NULL_PTR);
4224 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
4231 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
4235 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4239 if (! strncmp (y, "-D", 2))
4240 /* Copy the whole option. */
4241 while (*y && *y != ' ' && *y != '\t')
4243 else if (*y == ' ' || *y == '\t')
4244 /* Copy whitespace to the result. */
4246 /* Don't copy other options. */
4253 value = do_spec_1 (buf, 0, NULL_PTR);
4261 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
4265 /* Copy all of CPP_PREDEFINES into BUF,
4266 but force them all into the reserved name space if they aren't already there. The reserved name space is all
4267 identifiers beginning with two underscores or with one
4268 underscore and a capital letter. We do the forcing by
4269 adding up to two underscores to the beginning and end
4270 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4275 if (! strncmp (y, "-D", 2))
4284 && ! ISUPPER ((unsigned char)*(y+1))))
4286 /* Stick __ at front of macro name. */
4290 /* Arrange to stick __ at the end as well. */
4294 /* Copy the macro name. */
4295 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4308 /* Copy the value given, if any. */
4309 while (*y && *y != ' ' && *y != '\t')
4312 else if (*y == ' ' || *y == '\t')
4313 /* Copy whitespace to the result. */
4315 /* Don't copy -A options */
4321 /* Copy all of CPP_PREDEFINES into BUF,
4322 but put __ after every -D. */
4326 if (! strncmp (y, "-D", 2))
4332 && ! ISUPPER ((unsigned char)*(y+1))))
4334 /* Stick -D__ at front of macro name. */
4341 /* Copy the macro name. */
4342 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4345 /* Copy the value given, if any. */
4346 while (*y && *y != ' ' && *y != '\t')
4351 /* Do not copy this macro - we have just done it before */
4352 while (*y && *y != ' ' && *y != '\t')
4356 else if (*y == ' ' || *y == '\t')
4357 /* Copy whitespace to the result. */
4359 /* Don't copy -A options */
4365 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4369 if (! strncmp (y, "-A", 2))
4370 /* Copy the whole option. */
4371 while (*y && *y != ' ' && *y != '\t')
4373 else if (*y == ' ' || *y == '\t')
4374 /* Copy whitespace to the result. */
4376 /* Don't copy other options. */
4383 value = do_spec_1 (buf, 0, NULL_PTR);
4390 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
4395 /* Here we define characters other than letters and digits. */
4398 p = handle_braces (p);
4404 obstack_1grow (&obstack, '%');
4408 do_spec_1 (soft_matched_part, 1, NULL_PTR);
4409 do_spec_1 (" ", 0, NULL_PTR);
4412 /* Process a string found as the value of a spec given by name.
4413 This feature allows individual machine descriptions
4414 to add and use their own specs.
4415 %[...] modifies -D options the way %P does;
4416 %(...) uses the spec unmodified. */
4418 error ("Warning: use of obsolete %%[ operator in specs");
4421 const char *name = p;
4422 struct spec_list *sl;
4425 /* The string after the S/P is the name of a spec that is to be
4427 while (*p && *p != ')' && *p != ']')
4430 /* See if it's in the list */
4431 for (len = p - name, sl = specs; sl; sl = sl->next)
4432 if (sl->name_len == len && !strncmp (sl->name, name, len))
4434 name = *(sl->ptr_spec);
4436 notice ("Processing spec %c%s%c, which is '%s'\n",
4437 c, sl->name, (c == '(') ? ')' : ']', name);
4446 value = do_spec_1 (name, 0, NULL_PTR);
4452 char *x = (char *) alloca (strlen (name) * 2 + 1);
4454 const char *y = name;
4457 /* Copy all of NAME into BUF, but put __ after
4458 every -D and at the end of each arg, */
4461 if (! strncmp (y, "-D", 2))
4471 else if (flag && (*y == ' ' || *y == '\t' || *y == '='
4472 || *y == '}' || *y == 0))
4485 value = do_spec_1 (buf, 0, NULL_PTR);
4491 /* Discard the closing paren or bracket. */
4499 int c1 = *p++; /* Select first or second version number. */
4500 char *v = compiler_version;
4503 /* The format of the version string is
4504 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4506 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4507 while (! ISDIGIT (*v))
4509 if (v > compiler_version && v[-1] != '-')
4512 /* If desired, advance to second version number. */
4515 /* Set V after the first period. */
4516 while (ISDIGIT (*v))
4523 /* Set Q at the next period or at the end. */
4525 while (ISDIGIT (*q))
4527 if (*q != 0 && *q != ' ' && *q != '.' && *q != '-')
4530 /* Put that part into the command. */
4531 obstack_grow (&obstack, v, q - v);
4537 if (input_from_pipe)
4538 do_spec_1 ("-", 0, NULL_PTR);
4547 /* Backslash: treat next character as ordinary. */
4552 /* Ordinary character: put it into the current argument. */
4553 obstack_1grow (&obstack, c);
4557 return 0; /* End of string */
4560 /* Return 0 if we call do_spec_1 and that returns -1. */
4564 register const char *p;
4566 const char *filter, *body = NULL, *endbody = NULL;
4570 int include_blanks = 1;
4573 /* A '^' after the open-brace means to not give blanks before args. */
4574 include_blanks = 0, ++p;
4577 /* A `|' after the open-brace means,
4578 if the test fails, output a single minus sign rather than nothing.
4579 This is used in %{|!pipe:...}. */
4583 negate = suffix = 0;
4586 /* A `!' after the open-brace negates the condition:
4587 succeed if the specified switch is not present. */
4591 /* A `.' after the open-brace means test against the current suffix. */
4601 while (*p != ':' && *p != '}' && *p != '|') p++;
4603 if (*p == '|' && pipe_p)
4610 register int count = 1;
4611 register const char *q = p;
4613 while (*q++ != ':') continue;
4629 body = p, endbody = p+1;
4634 int found = (input_suffix != 0
4635 && (long) strlen (input_suffix) == (long)(p - filter)
4636 && strncmp (input_suffix, filter, p - filter) == 0);
4642 && do_spec_1 (save_string (body, endbody-body-1), 0, NULL_PTR) < 0)
4645 else if (p[-1] == '*' && p[0] == '}')
4647 /* Substitute all matching switches as separate args. */
4650 for (i = 0; i < n_switches; i++)
4651 if (!strncmp (switches[i].part1, filter, p - filter)
4652 && check_live_switch (i, p - filter))
4653 give_switch (i, 0, include_blanks);
4657 /* Test for presence of the specified switch. */
4661 /* If name specified ends in *, as in {x*:...},
4662 check for %* and handle that case. */
4663 if (p[-1] == '*' && !negate)
4666 const char *r = body;
4668 /* First see whether we have %*. */
4672 if (*r == '%' && r[1] == '*')
4676 /* If we do, handle that case. */
4679 /* Substitute all matching switches as separate args.
4680 But do this by substituting for %*
4681 in the text that follows the colon. */
4683 unsigned hard_match_len = p - filter - 1;
4684 char *string = save_string (body, endbody - body - 1);
4686 for (i = 0; i < n_switches; i++)
4687 if (!strncmp (switches[i].part1, filter, hard_match_len)
4688 && check_live_switch (i, -1))
4690 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
4691 /* Pass any arguments this switch has. */
4692 give_switch (i, 1, 1);
4695 /* We didn't match. Try again. */
4702 /* If name specified ends in *, as in {x*:...},
4703 check for presence of any switch name starting with x. */
4706 for (i = 0; i < n_switches; i++)
4708 unsigned hard_match_len = p - filter - 1;
4710 if (!strncmp (switches[i].part1, filter, hard_match_len)
4711 && check_live_switch (i, hard_match_len))
4717 /* Otherwise, check for presence of exact name specified. */
4720 for (i = 0; i < n_switches; i++)
4722 if (!strncmp (switches[i].part1, filter, p - filter)
4723 && switches[i].part1[p - filter] == 0
4724 && check_live_switch (i, -1))
4732 /* If it is as desired (present for %{s...}, absent for %{!s...})
4733 then substitute either the switch or the specified
4734 conditional text. */
4735 if (present != negate)
4739 give_switch (i, 0, include_blanks);
4743 if (do_spec_1 (save_string (body, endbody - body - 1),
4750 /* Here if a %{|...} conditional fails: output a minus sign,
4751 which means "standard output" or "standard input". */
4752 do_spec_1 ("-", 0, NULL_PTR);
4757 /* We didn't match; try again. */
4764 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4765 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4766 spec, or -1 if either exact match or %* is used.
4768 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4769 whose value does not begin with "no-" is obsoleted by the same value
4770 with the "no-", similarly for a switch with the "no-" prefix. */
4773 check_live_switch (switchnum, prefix_length)
4777 const char *name = switches[switchnum].part1;
4780 /* In the common case of {<at-most-one-letter>*}, a negating
4781 switch would always match, so ignore that case. We will just
4782 send the conflicting switches to the compiler phase. */
4783 if (prefix_length >= 0 && prefix_length <= 1)
4786 /* If we already processed this switch and determined if it was
4787 live or not, return our past determination. */
4788 if (switches[switchnum].live_cond != 0)
4789 return switches[switchnum].live_cond > 0;
4791 /* Now search for duplicate in a manner that depends on the name. */
4795 for (i = switchnum + 1; i < n_switches; i++)
4796 if (switches[i].part1[0] == 'O')
4798 switches[switchnum].validated = 1;
4799 switches[switchnum].live_cond = -1;
4804 case 'W': case 'f': case 'm':
4805 if (! strncmp (name + 1, "no-", 3))
4807 /* We have Xno-YYY, search for XYYY. */
4808 for (i = switchnum + 1; i < n_switches; i++)
4809 if (switches[i].part1[0] == name[0]
4810 && ! strcmp (&switches[i].part1[1], &name[4]))
4812 switches[switchnum].validated = 1;
4813 switches[switchnum].live_cond = -1;
4819 /* We have XYYY, search for Xno-YYY. */
4820 for (i = switchnum + 1; i < n_switches; i++)
4821 if (switches[i].part1[0] == name[0]
4822 && switches[i].part1[1] == 'n'
4823 && switches[i].part1[2] == 'o'
4824 && switches[i].part1[3] == '-'
4825 && !strcmp (&switches[i].part1[4], &name[1]))
4827 switches[switchnum].validated = 1;
4828 switches[switchnum].live_cond = -1;
4835 /* Otherwise the switch is live. */
4836 switches[switchnum].live_cond = 1;
4840 /* Pass a switch to the current accumulating command
4841 in the same form that we received it.
4842 SWITCHNUM identifies the switch; it is an index into
4843 the vector of switches gcc received, which is `switches'.
4844 This cannot fail since it never finishes a command line.
4846 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4848 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
4852 give_switch (switchnum, omit_first_word, include_blanks)
4854 int omit_first_word;
4857 if (!omit_first_word)
4859 do_spec_1 ("-", 0, NULL_PTR);
4860 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4863 if (switches[switchnum].args != 0)
4866 for (p = switches[switchnum].args; *p; p++)
4869 do_spec_1 (" ", 0, NULL_PTR);
4870 do_spec_1 (*p, 1, NULL_PTR);
4874 do_spec_1 (" ", 0, NULL_PTR);
4875 switches[switchnum].validated = 1;
4878 /* Search for a file named NAME trying various prefixes including the
4879 user's -B prefix and some standard ones.
4880 Return the absolute file name found. If nothing is found, return NAME. */
4888 /* Try multilib_dir if it is defined. */
4889 if (multilib_dir != NULL)
4893 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4894 strcpy (try, multilib_dir);
4895 strcat (try, dir_separator_str);
4898 newname = find_a_file (&startfile_prefixes, try, R_OK);
4900 /* If we don't find it in the multi library dir, then fall
4901 through and look for it in the normal places. */
4902 if (newname != NULL)
4906 newname = find_a_file (&startfile_prefixes, name, R_OK);
4907 return newname ? newname : name;
4910 /* Determine whether a directory exists. If LINKER, return 0 for
4911 certain fixed names not needed by the linker. If not LINKER, it is
4912 only important to return 0 if the host machine has a small ARG_MAX
4916 is_directory (path1, path2, linker)
4921 int len1 = strlen (path1);
4922 int len2 = strlen (path2);
4923 char *path = (char *) alloca (3 + len1 + len2);
4927 #ifndef SMALL_ARG_MAX
4932 /* Construct the path from the two parts. Ensure the string ends with "/.".
4933 The resulting path will be a directory even if the given path is a
4935 memcpy (path, path1, len1);
4936 memcpy (path + len1, path2, len2);
4937 cp = path + len1 + len2;
4938 if (!IS_DIR_SEPARATOR (cp[-1]))
4939 *cp++ = DIR_SEPARATOR;
4943 /* Exclude directories that the linker is known to search. */
4946 && strcmp (path, concat (dir_separator_str, "lib",
4947 dir_separator_str, ".", NULL_PTR)) == 0)
4949 && strcmp (path, concat (dir_separator_str, "usr",
4950 dir_separator_str, "lib",
4951 dir_separator_str, ".", NULL_PTR)) == 0)))
4954 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4957 /* Set up the various global variables to indicate that we're processing
4958 the input file named FILENAME. */
4961 set_input (filename)
4962 const char *filename;
4964 register const char *p;
4966 input_filename = filename;
4967 input_filename_length = strlen (input_filename);
4969 input_basename = input_filename;
4970 for (p = input_filename; *p; p++)
4971 if (IS_DIR_SEPARATOR (*p))
4972 input_basename = p + 1;
4974 /* Find a suffix starting with the last period,
4975 and set basename_length to exclude that suffix. */
4976 basename_length = strlen (input_basename);
4977 p = input_basename + basename_length;
4978 while (p != input_basename && *p != '.') --p;
4979 if (*p == '.' && p != input_basename)
4981 basename_length = p - input_basename;
4982 input_suffix = p + 1;
4988 /* On fatal signals, delete all the temporary files. */
4991 fatal_error (signum)
4994 signal (signum, SIG_DFL);
4995 delete_failure_queue ();
4996 delete_temp_files ();
4997 /* Get the same signal again, this time not handled,
4998 so its normal effect occurs. */
4999 kill (getpid (), signum);
5002 extern int main PARAMS ((int, char **));
5012 int linker_was_run = 0;
5013 char *explicit_link_files;
5016 struct user_specs *uptr;
5018 p = argv[0] + strlen (argv[0]);
5019 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
5023 #ifdef HAVE_LC_MESSAGES
5024 setlocale (LC_MESSAGES, "");
5026 (void) bindtextdomain (PACKAGE, localedir);
5027 (void) textdomain (PACKAGE);
5029 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
5030 signal (SIGINT, fatal_error);
5032 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
5033 signal (SIGHUP, fatal_error);
5035 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
5036 signal (SIGTERM, fatal_error);
5038 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
5039 signal (SIGPIPE, fatal_error);
5043 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
5045 obstack_init (&obstack);
5047 /* Build multilib_select, et. al from the separate lines that make up each
5048 multilib selection. */
5050 char **q = multilib_raw;
5053 obstack_init (&multilib_obstack);
5054 while ((p = *q++) != (char *) 0)
5055 obstack_grow (&multilib_obstack, p, strlen (p));
5057 obstack_1grow (&multilib_obstack, 0);
5058 multilib_select = obstack_finish (&multilib_obstack);
5060 q = multilib_matches_raw;
5061 while ((p = *q++) != (char *) 0)
5062 obstack_grow (&multilib_obstack, p, strlen (p));
5064 obstack_1grow (&multilib_obstack, 0);
5065 multilib_matches = obstack_finish (&multilib_obstack);
5069 i < sizeof (multilib_defaults_raw) / sizeof (multilib_defaults_raw[0]);
5073 obstack_1grow (&multilib_obstack, ' ');
5074 obstack_grow (&multilib_obstack,
5075 multilib_defaults_raw[i],
5076 strlen (multilib_defaults_raw[i]));
5080 obstack_1grow (&multilib_obstack, 0);
5081 multilib_defaults = obstack_finish (&multilib_obstack);
5084 /* Set up to remember the pathname of gcc and any options
5085 needed for collect. We use argv[0] instead of programname because
5086 we need the complete pathname. */
5087 obstack_init (&collect_obstack);
5088 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
5089 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
5090 putenv (obstack_finish (&collect_obstack));
5092 #ifdef INIT_ENVIRONMENT
5093 /* Set up any other necessary machine specific environment variables. */
5094 putenv (INIT_ENVIRONMENT);
5097 /* Choose directory for temp files. */
5099 #ifndef MKTEMP_EACH_FILE
5100 temp_filename = choose_temp_base ();
5101 temp_filename_length = strlen (temp_filename);
5104 /* Make a table of what switches there are (switches, n_switches).
5105 Make a table of specified input files (infiles, n_infiles).
5106 Decode switches that are handled locally. */
5108 process_command (argc, argv);
5113 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5115 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
5116 sizeof ("COLLECT_GCC_OPTIONS=")-1);
5119 for (i = 0; (int)i < n_switches; i++)
5124 obstack_grow (&collect_obstack, " ", 1);
5127 obstack_grow (&collect_obstack, "'-", 2);
5128 q = switches[i].part1;
5129 while ((p = index (q,'\'')))
5131 obstack_grow (&collect_obstack, q, p-q);
5132 obstack_grow (&collect_obstack, "'\\''", 4);
5135 obstack_grow (&collect_obstack, q, strlen (q));
5136 obstack_grow (&collect_obstack, "'", 1);
5138 for (args = switches[i].args; args && *args; args++)
5140 obstack_grow (&collect_obstack, " '", 2);
5142 while ((p = index (q,'\'')))
5144 obstack_grow (&collect_obstack, q, p-q);
5145 obstack_grow (&collect_obstack, "'\\''", 4);
5148 obstack_grow (&collect_obstack, q, strlen (q));
5149 obstack_grow (&collect_obstack, "'", 1);
5152 obstack_grow (&collect_obstack, "\0", 1);
5153 putenv (obstack_finish (&collect_obstack));
5156 /* Initialize the vector of specs to just the default.
5157 This means one element containing 0s, as a terminator. */
5159 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
5160 bcopy ((char *) default_compilers, (char *) compilers,
5161 sizeof default_compilers);
5162 n_compilers = n_default_compilers;
5164 /* Read specs from a file if there is one. */
5166 machine_suffix = concat (spec_machine, dir_separator_str,
5167 spec_version, dir_separator_str, NULL_PTR);
5168 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
5170 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
5171 /* Read the specs file unless it is a default one. */
5172 if (specs_file != 0 && strcmp (specs_file, "specs"))
5173 read_specs (specs_file, TRUE);
5177 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5178 for any override of as, ld and libraries. */
5179 specs_file = (char *) alloca (strlen (standard_exec_prefix)
5180 + strlen (just_machine_suffix)
5181 + sizeof ("specs"));
5183 strcpy (specs_file, standard_exec_prefix);
5184 strcat (specs_file, just_machine_suffix);
5185 strcat (specs_file, "specs");
5186 if (access (specs_file, R_OK) == 0)
5187 read_specs (specs_file, TRUE);
5189 /* If not cross-compiling, look for startfiles in the standard places. */
5190 if (*cross_compile == '0')
5192 #ifdef MD_EXEC_PREFIX
5193 add_prefix (&exec_prefixes, md_exec_prefix, "GCC", 0, 0, NULL_PTR);
5194 add_prefix (&startfile_prefixes, md_exec_prefix, "GCC", 0, 0, NULL_PTR);
5197 #ifdef MD_STARTFILE_PREFIX
5198 add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC",
5202 #ifdef MD_STARTFILE_PREFIX_1
5203 add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC",
5207 /* If standard_startfile_prefix is relative, base it on
5208 standard_exec_prefix. This lets us move the installed tree
5209 as a unit. If GCC_EXEC_PREFIX is defined, base
5210 standard_startfile_prefix on that as well. */
5211 if (IS_DIR_SEPARATOR (*standard_startfile_prefix)
5212 || *standard_startfile_prefix == '$'
5213 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5214 /* Check for disk name on MS-DOS-based systems. */
5215 || (standard_startfile_prefix[1] == ':'
5216 && (IS_DIR_SEPARATOR (standard_startfile_prefix[2])))
5219 add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS",
5223 if (gcc_exec_prefix)
5224 add_prefix (&startfile_prefixes,
5225 concat (gcc_exec_prefix, machine_suffix,
5226 standard_startfile_prefix, NULL_PTR),
5227 NULL_PTR, 0, 0, NULL_PTR);
5228 add_prefix (&startfile_prefixes,
5229 concat (standard_exec_prefix,
5231 standard_startfile_prefix, NULL_PTR),
5232 NULL_PTR, 0, 0, NULL_PTR);
5235 add_prefix (&startfile_prefixes, standard_startfile_prefix_1,
5236 "BINUTILS", 0, 0, NULL_PTR);
5237 add_prefix (&startfile_prefixes, standard_startfile_prefix_2,
5238 "BINUTILS", 0, 0, NULL_PTR);
5239 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5240 add_prefix (&startfile_prefixes, "./", NULL_PTR, 0, 1, NULL_PTR);
5245 if (!IS_DIR_SEPARATOR (*standard_startfile_prefix) && gcc_exec_prefix)
5246 add_prefix (&startfile_prefixes,
5247 concat (gcc_exec_prefix, machine_suffix,
5248 standard_startfile_prefix, NULL_PTR),
5249 "BINUTILS", 0, 0, NULL_PTR);
5252 /* Process any user specified specs in the order given on the command
5254 for (uptr = user_specs_head; uptr; uptr = uptr->next)
5256 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
5257 read_specs (filename ? filename : uptr->filename, FALSE);
5260 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5261 if (gcc_exec_prefix)
5263 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
5264 + strlen (spec_version)
5265 + strlen (spec_machine) + 3);
5266 strcpy (temp, gcc_exec_prefix);
5267 strcat (temp, spec_machine);
5268 strcat (temp, dir_separator_str);
5269 strcat (temp, spec_version);
5270 strcat (temp, dir_separator_str);
5271 gcc_exec_prefix = temp;
5274 /* Now we have the specs.
5275 Set the `valid' bits for switches that match anything in any spec. */
5277 validate_all_switches ();
5279 /* Now that we have the switches and the specs, set
5280 the subdirectory based on the options. */
5281 set_multilib_dir ();
5283 /* Warn about any switches that no pass was interested in. */
5285 for (i = 0; (int)i < n_switches; i++)
5286 if (! switches[i].validated)
5287 error ("unrecognized option `-%s'", switches[i].part1);
5289 /* Obey some of the options. */
5291 if (print_search_dirs)
5293 printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
5294 printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
5295 printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
5299 if (print_file_name)
5301 printf ("%s\n", find_file (print_file_name));
5305 if (print_prog_name)
5307 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
5308 printf ("%s\n", (newname ? newname : print_prog_name));
5312 if (print_multi_lib)
5314 print_multilib_info ();
5318 if (print_multi_directory)
5320 if (multilib_dir == NULL)
5323 printf ("%s\n", multilib_dir);
5327 if (print_help_list)
5333 printf ("\nFor bug reporting instructions, please see:\n");
5334 printf ("<URL:http://www.gnu.org/software/gcc/faq.html#bugreport>.\n");
5339 /* We do not exit here. Instead we have created a fake input file
5340 called 'help-dummy' which needs to be compiled, and we pass this
5341 on the the various sub-processes, along with the --help switch. */
5348 /* compiler_version is truncated at the first space when initialized
5349 from version string, so truncate version_string at the first space
5350 before comparing. */
5351 for (n = 0; version_string[n]; n++)
5352 if (version_string[n] == ' ')
5355 if (! strncmp (version_string, compiler_version, n)
5356 && compiler_version[n] == 0)
5357 notice ("gcc version %s\n", version_string);
5359 notice ("gcc driver version %s executing gcc version %s\n",
5360 version_string, compiler_version);
5366 if (n_infiles == added_libraries)
5367 fatal ("No input files");
5369 /* Make a place to record the compiler output file names
5370 that correspond to the input files. */
5373 i += lang_specific_extra_outfiles;
5374 outfiles = (const char **) xcalloc (i, sizeof (char *));
5376 /* Record which files were specified explicitly as link input. */
5378 explicit_link_files = xcalloc (1, n_infiles);
5380 for (i = 0; (int)i < n_infiles; i++)
5382 register struct compiler *cp = 0;
5383 int this_file_error = 0;
5385 /* Tell do_spec what to substitute for %i. */
5387 input_file_number = i;
5388 set_input (infiles[i].name);
5390 /* Use the same thing in %o, unless cp->spec says otherwise. */
5392 outfiles[i] = input_filename;
5394 /* Figure out which compiler from the file's suffix. */
5396 cp = lookup_compiler (infiles[i].name, input_filename_length,
5397 infiles[i].language);
5401 /* Ok, we found an applicable compiler. Run its spec. */
5402 /* First say how much of input_filename to substitute for %b */
5405 if (cp->spec[0][0] == '#')
5406 error ("%s: %s compiler not installed on this system",
5407 input_filename, &cp->spec[0][1]);
5410 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
5412 len += strlen (cp->spec[j]);
5415 char *p1 = (char *) xmalloc (len + 1);
5418 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
5421 strcpy (p1 + len, cp->spec[j]);
5422 len += strlen (cp->spec[j]);
5425 value = do_spec (p1);
5429 this_file_error = 1;
5432 /* If this file's name does not contain a recognized suffix,
5433 record it as explicit linker input. */
5436 explicit_link_files[i] = 1;
5438 /* Clear the delete-on-failure queue, deleting the files in it
5439 if this compilation failed. */
5441 if (this_file_error)
5443 delete_failure_queue ();
5446 /* If this compilation succeeded, don't delete those files later. */
5447 clear_failure_queue ();
5450 /* Reset the output file name to the first input file name, for use
5451 with %b in LINK_SPEC on a target that prefers not to emit a.out
5454 set_input (infiles[0].name);
5456 if (error_count == 0)
5458 /* Make sure INPUT_FILE_NUMBER points to first available open
5460 input_file_number = n_infiles;
5461 if (lang_specific_pre_link ())
5465 /* Run ld to link all the compiler output files. */
5467 if (error_count == 0)
5469 int tmp = execution_count;
5471 /* We'll use ld if we can't find collect2. */
5472 if (! strcmp (linker_name_spec, "collect2"))
5474 char *s = find_a_file (&exec_prefixes, "collect2", X_OK);
5476 linker_name_spec = "ld";
5478 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5480 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH");
5481 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV);
5483 value = do_spec (link_command_spec);
5486 linker_was_run = (tmp != execution_count);
5489 /* Warn if a -B option was specified but the prefix was never used. */
5490 unused_prefix_warnings (&exec_prefixes);
5491 unused_prefix_warnings (&startfile_prefixes);
5493 /* If options said don't run linker,
5494 complain about input files to be given to the linker. */
5496 if (! linker_was_run && error_count == 0)
5497 for (i = 0; (int)i < n_infiles; i++)
5498 if (explicit_link_files[i])
5499 error ("%s: linker input file unused since linking not done",
5502 /* Delete some or all of the temporary files we made. */
5505 delete_failure_queue ();
5506 delete_temp_files ();
5508 if (print_help_list)
5510 printf ("\nFor bug reporting instructions, please see:\n");
5511 printf ("<URL:http://www.gnu.org/software/gcc/faq.html#bugreport>\n");
5514 return (signal_count != 0 ? 2
5515 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
5519 /* Find the proper compilation spec for the file name NAME,
5520 whose length is LENGTH. LANGUAGE is the specified language,
5521 or 0 if this file is to be passed to the linker. */
5523 static struct compiler *
5524 lookup_compiler (name, length, language)
5527 const char *language;
5529 struct compiler *cp;
5531 /* If this was specified by the user to be a linker input, indicate that. */
5532 if (language != 0 && language[0] == '*')
5535 /* Otherwise, look for the language, if one is spec'd. */
5538 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5539 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
5542 error ("language %s not recognized", language);
5546 /* Look for a suffix. */
5547 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5549 if (/* The suffix `-' matches only the file name `-'. */
5550 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5551 || (strlen (cp->suffix) < length
5552 /* See if the suffix matches the end of NAME. */
5554 && ((!strcmp (cp->suffix,
5555 name + length - strlen (cp->suffix))
5556 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
5557 && !strcasecmp (cp->suffix,
5558 name + length - strlen (cp->suffix)))
5560 && !strcmp (cp->suffix,
5561 name + length - strlen (cp->suffix))
5565 if (cp->spec[0][0] == '@')
5567 struct compiler *new;
5569 /* An alias entry maps a suffix to a language.
5570 Search for the language; pass 0 for NAME and LENGTH
5571 to avoid infinite recursion if language not found.
5572 Construct the new compiler spec. */
5573 language = cp->spec[0] + 1;
5574 new = (struct compiler *) xmalloc (sizeof (struct compiler));
5575 new->suffix = cp->suffix;
5577 lookup_compiler (NULL_PTR, 0, language)->spec,
5582 /* A non-alias entry: return it. */
5591 save_string (s, len)
5595 register char *result = xmalloc (len + 1);
5597 bcopy (s, result, len);
5603 pfatal_with_name (name)
5606 perror_with_name (name);
5607 delete_temp_files ();
5612 perror_with_name (name)
5615 error ("%s: %s", name, xstrerror (errno));
5619 pfatal_pexecute (errmsg_fmt, errmsg_arg)
5620 const char *errmsg_fmt;
5621 const char *errmsg_arg;
5625 int save_errno = errno;
5627 /* Space for trailing '\0' is in %s. */
5628 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
5629 sprintf (msg, errmsg_fmt, errmsg_arg);
5635 pfatal_with_name (errmsg_fmt);
5638 /* Output an error message and exit */
5643 fatal ("Internal gcc abort.");
5646 /* Output an error message and exit */
5649 fatal VPARAMS ((const char *msgid, ...))
5651 #ifndef ANSI_PROTOTYPES
5656 VA_START (ap, msgid);
5658 #ifndef ANSI_PROTOTYPES
5659 msgid = va_arg (ap, const char *);
5662 fprintf (stderr, "%s: ", programname);
5663 vfprintf (stderr, _(msgid), ap);
5665 fprintf (stderr, "\n");
5666 delete_temp_files ();
5671 error VPARAMS ((const char *msgid, ...))
5673 #ifndef ANSI_PROTOTYPES
5678 VA_START (ap, msgid);
5680 #ifndef ANSI_PROTOTYPES
5681 msgid = va_arg (ap, const char *);
5684 fprintf (stderr, "%s: ", programname);
5685 vfprintf (stderr, _(msgid), ap);
5688 fprintf (stderr, "\n");
5692 notice VPARAMS ((const char *msgid, ...))
5694 #ifndef ANSI_PROTOTYPES
5699 VA_START (ap, msgid);
5701 #ifndef ANSI_PROTOTYPES
5702 msgid = va_arg (ap, const char *);
5705 vfprintf (stderr, _(msgid), ap);
5711 validate_all_switches ()
5713 struct compiler *comp;
5714 register const char *p;
5716 struct spec_list *spec;
5718 for (comp = compilers; comp->spec[0]; comp++)
5721 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
5725 if (c == '%' && *p == '{')
5726 /* We have a switch spec. */
5727 validate_switches (p + 1);
5731 /* look through the linked list of specs read from the specs file */
5732 for (spec = specs; spec ; spec = spec->next)
5734 p = *(spec->ptr_spec);
5736 if (c == '%' && *p == '{')
5737 /* We have a switch spec. */
5738 validate_switches (p + 1);
5741 p = link_command_spec;
5743 if (c == '%' && *p == '{')
5744 /* We have a switch spec. */
5745 validate_switches (p + 1);
5748 /* Look at the switch-name that comes after START
5749 and mark as valid all supplied switches that match it. */
5752 validate_switches (start)
5755 register const char *p = start;
5770 while (*p != ':' && *p != '}') p++;
5774 else if (p[-1] == '*')
5776 /* Mark all matching switches as valid. */
5778 for (i = 0; i < n_switches; i++)
5779 if (!strncmp (switches[i].part1, filter, p - filter))
5780 switches[i].validated = 1;
5784 /* Mark an exact matching switch as valid. */
5785 for (i = 0; i < n_switches; i++)
5787 if (!strncmp (switches[i].part1, filter, p - filter)
5788 && switches[i].part1[p - filter] == 0)
5789 switches[i].validated = 1;
5794 /* Check whether a particular argument was used. The first time we
5795 canonicalize the switches to keep only the ones we care about. */
5809 static struct mswitchstr *mswitches;
5810 static int n_mswitches;
5815 struct mswitchstr *matches;
5819 /* Break multilib_matches into the component strings of string and replacement
5821 for (q = multilib_matches; *q != '\0'; q++)
5825 matches = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
5827 q = multilib_matches;
5838 matches[i].len = q - matches[i].str;
5840 matches[i].replace = ++q;
5841 while (*q != ';' && *q != '\0')
5847 matches[i].rep_len = q - matches[i].replace;
5855 /* Now build a list of the replacement string for switches that we care
5856 about. Make sure we allocate at least one entry. This prevents
5857 xmalloc from calling fatal, and prevents us from re-executing this
5860 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
5861 * (n_switches ? n_switches : 1));
5862 for (i = 0; i < n_switches; i++)
5864 int xlen = strlen (switches[i].part1);
5865 for (j = 0; j < cnt; j++)
5866 if (xlen == matches[j].len && ! strcmp (switches[i].part1, matches[j].str))
5868 mswitches[n_mswitches].str = matches[j].replace;
5869 mswitches[n_mswitches].len = matches[j].rep_len;
5870 mswitches[n_mswitches].replace = (char *)0;
5871 mswitches[n_mswitches].rep_len = 0;
5878 for (i = 0; i < n_mswitches; i++)
5879 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
5886 default_arg (p, len)
5892 for (start = multilib_defaults; *start != '\0'; start = end+1)
5894 while (*start == ' ' || *start == '\t')
5900 for (end = start+1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
5903 if ((end - start) == len && strncmp (p, start, len) == 0)
5913 /* Work out the subdirectory to use based on the
5914 options. The format of multilib_select is a list of elements.
5915 Each element is a subdirectory name followed by a list of options
5916 followed by a semicolon. gcc will consider each line in turn. If
5917 none of the options beginning with an exclamation point are
5918 present, and all of the other options are present, that
5919 subdirectory will be used. */
5924 char *p = multilib_select;
5926 char *this_path, *this_arg;
5932 /* Ignore newlines. */
5939 /* Get the initial path. */
5947 this_path_len = p - this_path;
5949 /* Check the arguments. */
5964 while (*p != ' ' && *p != ';')
5971 if (*this_arg != '!')
5979 /* If this is a default argument, we can just ignore it.
5980 This is true even if this_arg begins with '!'. Beginning
5981 with '!' does not mean that this argument is necessarily
5982 inappropriate for this library: it merely means that
5983 there is a more specific library which uses this
5984 argument. If this argument is a default, we need not
5985 consider that more specific library. */
5986 if (! default_arg (this_arg, p - this_arg))
5988 ok = used_arg (this_arg, p - this_arg);
5999 if (this_path_len != 1
6000 || this_path[0] != '.')
6002 char * new_multilib_dir = xmalloc (this_path_len + 1);
6003 strncpy (new_multilib_dir, this_path, this_path_len);
6004 new_multilib_dir[this_path_len] = '\0';
6005 multilib_dir = new_multilib_dir;
6014 /* Print out the multiple library subdirectory selection
6015 information. This prints out a series of lines. Each line looks
6016 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6017 required. Only the desired options are printed out, the negative
6018 matches. The options are print without a leading dash. There are
6019 no spaces to make it easy to use the information in the shell.
6020 Each subdirectory is printed only once. This assumes the ordering
6021 generated by the genmultilib script. */
6024 print_multilib_info ()
6026 char *p = multilib_select;
6027 char *last_path = 0, *this_path;
6029 int last_path_len = 0;
6033 /* Ignore newlines. */
6040 /* Get the initial path. */
6049 /* If this is a duplicate, skip it. */
6050 skip = (last_path != 0 && p - this_path == last_path_len
6051 && ! strncmp (last_path, this_path, last_path_len));
6053 last_path = this_path;
6054 last_path_len = p - this_path;
6056 /* If this directory requires any default arguments, we can skip
6057 it. We will already have printed a directory identical to
6058 this one which does not require that default argument. */
6076 while (*q != ' ' && *q != ';')
6084 && default_arg (arg, q - arg))
6099 for (p1 = last_path; p1 < p; p1++)
6118 use_arg = *p != '!';
6123 while (*p != ' ' && *p != ';')
6138 /* If there are extra options, print them now */
6139 if (multilib_extra && *multilib_extra)
6141 int print_at = TRUE;
6144 for (q = multilib_extra; *q != '\0'; q++)