1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92, 93, 94, 95, 1996 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". */
34 #include <sys/types.h>
41 #include <sys/file.h> /* May get R_OK, etc. on some systems. */
46 #include "gansidecl.h"
61 /* ??? Need to find a GCC header to put these in. */
62 extern int pexecute PROTO ((const char *, char * const *, const char *,
63 const char *, char **, char **, int));
64 extern int pwait PROTO ((int, int *, int));
65 /* Flag arguments to pexecute. */
66 #define PEXECUTE_FIRST 1
67 #define PEXECUTE_LAST 2
68 #define PEXECUTE_SEARCH 4
69 #define PEXECUTE_VERBOSE 8
72 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
75 #define WTERMSIG(S) ((S) & 0x7f)
78 #define WIFEXITED(S) (((S) & 0xff) == 0)
81 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
84 /* Define O_RDONLY if the system hasn't defined it for us. */
93 /* Test if something is a normal file. */
95 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
98 /* Test if something is a directory. */
100 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
103 /* By default there is no special suffix for executables. */
104 #ifdef EXECUTABLE_SUFFIX
105 #define HAVE_EXECUTABLE_SUFFIX
107 #define EXECUTABLE_SUFFIX ""
110 /* By default, the suffix for object files is ".o". */
112 #define HAVE_OBJECT_SUFFIX
114 #define OBJECT_SUFFIX ".o"
117 /* By default, colon separates directories in a path. */
118 #ifndef PATH_SEPARATOR
119 #define PATH_SEPARATOR ':'
122 #ifndef DIR_SEPARATOR
123 #define DIR_SEPARATOR '/'
126 static char dir_separator_str[] = {DIR_SEPARATOR, 0};
128 #define obstack_chunk_alloc xmalloc
129 #define obstack_chunk_free free
132 extern char *getenv ();
134 extern char *choose_temp_base PROTO((void));
140 #ifndef HAVE_STRERROR
143 extern const char *const sys_errlist[];
145 extern char *sys_errlist[];
148 extern char *strerror();
151 /* If a stage of compilation returns an exit status >= 1,
152 compilation of that file ceases. */
154 #define MIN_FATAL_STATUS 1
156 /* Flag saying to print the directories gcc will search through looking for
157 programs, libraries, etc. */
159 static int print_search_dirs;
161 /* Flag saying to print the full filename of this file
162 as found through our usual search mechanism. */
164 static char *print_file_name = NULL;
166 /* As print_file_name, but search for executable file. */
168 static char *print_prog_name = NULL;
170 /* Flag saying to print the relative path we'd use to
171 find libgcc.a given the current compiler flags. */
173 static int print_multi_directory;
175 /* Flag saying to print the list of subdirectories and
176 compiler flags used to select them in a standard form. */
178 static int print_multi_lib;
180 /* Flag indicating whether we should print the command and arguments */
182 static int verbose_flag;
184 /* Nonzero means write "temp" files in source directory
185 and use the source file's name in them, and don't delete them. */
187 static int save_temps_flag;
189 /* The compiler version. */
191 static char *compiler_version;
193 /* The target version specified with -V */
195 static char *spec_version = DEFAULT_TARGET_VERSION;
197 /* The target machine specified with -b. */
199 static char *spec_machine = DEFAULT_TARGET_MACHINE;
201 /* Nonzero if cross-compiling.
202 When -b is used, the value comes from the `specs' file. */
205 static int cross_compile = 1;
207 static int cross_compile = 0;
210 /* The number of errors that have occurred; the link phase will not be
211 run if this is non-zero. */
212 static int error_count = 0;
214 /* This is the obstack which we use to allocate many strings. */
216 static struct obstack obstack;
218 /* This is the obstack to build an environment variable to pass to
219 collect2 that describes all of the relevant switches of what to
220 pass the compiler in building the list of pointers to constructors
223 static struct obstack collect_obstack;
225 extern char *version_string;
227 /* Forward declaration for prototypes. */
230 static void set_spec PROTO((char *, char *));
231 static struct compiler *lookup_compiler PROTO((char *, int, char *));
232 static char *build_search_list PROTO((struct path_prefix *, char *, int));
233 static void putenv_from_prefixes PROTO((struct path_prefix *, char *));
234 static char *find_a_file PROTO((struct path_prefix *, char *, int));
235 static void add_prefix PROTO((struct path_prefix *, char *, int, int, int *));
236 static char *skip_whitespace PROTO((char *));
237 static void record_temp_file PROTO((char *, int, int));
238 static void delete_if_ordinary PROTO((char *));
239 static void delete_temp_files PROTO((void));
240 static void delete_failure_queue PROTO((void));
241 static void clear_failure_queue PROTO((void));
242 static int check_live_switch PROTO((int, int));
243 static char *handle_braces PROTO((char *));
244 static char *save_string PROTO((char *, int));
245 static char *concat PVPROTO((char *, ...));
246 static int do_spec PROTO((char *));
247 static int do_spec_1 PROTO((char *, int, char *));
248 static char *find_file PROTO((char *));
249 static int is_directory PROTO((char *, char *, int));
250 static void validate_switches PROTO((char *));
251 static void validate_all_switches PROTO((void));
252 static void give_switch PROTO((int, int));
253 static int used_arg PROTO((char *, int));
254 static int default_arg PROTO((char *, int));
255 static void set_multilib_dir PROTO((void));
256 static void print_multilib_info PROTO((void));
257 static void pfatal_with_name PROTO((char *));
258 static void perror_with_name PROTO((char *));
259 static void pfatal_pexecute PROTO((char *, char *));
261 static void fatal PVPROTO((char *, ...));
262 static void error PVPROTO((char *, ...));
264 /* We must not provide any prototype here, even if ANSI C. */
265 static void fatal PROTO(());
266 static void error PROTO(());
273 /* Specs are strings containing lines, each of which (if not blank)
274 is made up of a program name, and arguments separated by spaces.
275 The program name must be exact and start from root, since no path
276 is searched and it is unreliable to depend on the current working directory.
277 Redirection of input or output is not supported; the subprograms must
278 accept filenames saying what files to read and write.
280 In addition, the specs can contain %-sequences to substitute variable text
281 or for conditional text. Here is a table of all defined %-sequences.
282 Note that spaces are not generated automatically around the results of
283 expanding these sequences; therefore, you can concatenate them together
284 or with constant text in a single argument.
286 %% substitute one % into the program name or argument.
287 %i substitute the name of the input file being processed.
288 %b substitute the basename of the input file being processed.
289 This is the substring up to (and not including) the last period
290 and not including the directory.
291 %g substitute the temporary-file-name-base. This is a string chosen
292 once per compilation. Different temporary file names are made by
293 concatenation of constant strings on the end, as in `%g.s'.
294 %g also has the same effect of %d.
295 %u like %g, but make the temporary file name unique.
296 %U returns the last file name generated with %u.
297 %d marks the argument containing or following the %d as a
298 temporary file name, so that that file will be deleted if CC exits
299 successfully. Unlike %g, this contributes no text to the argument.
300 %w marks the argument containing or following the %w as the
301 "output file" of this compilation. This puts the argument
302 into the sequence of arguments that %o will substitute later.
304 like %{...} but mark last argument supplied within
305 as a file to be deleted on failure.
306 %o substitutes the names of all the output files, with spaces
307 automatically placed around them. You should write spaces
308 around the %o as well or the results are undefined.
309 %o is for use in the specs for running the linker.
310 Input files whose names have no recognized suffix are not compiled
311 at all, but they are included among the output files, so they will
313 %O substitutes the suffix for object files.
314 %p substitutes the standard macro predefinitions for the
315 current target machine. Use this when running cpp.
316 %P like %p, but puts `__' before and after the name of each macro.
317 (Except macros that already have __.)
319 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
320 %s current argument is the name of a library or startup file of some sort.
321 Search for that file in a standard list of directories
322 and substitute the full name found.
323 %eSTR Print STR as an error message. STR is terminated by a newline.
324 Use this when inconsistent options are detected.
325 %x{OPTION} Accumulate an option for %X.
326 %X Output the accumulated linker options specified by compilations.
327 %Y Output the accumulated assembler options specified by compilations.
328 %Z Output the accumulated preprocessor options specified by compilations.
329 %v1 Substitute the major version number of GCC.
330 (For version 2.5.n, this is 2.)
331 %v2 Substitute the minor version number of GCC.
332 (For version 2.5.n, this is 5.)
333 %a process ASM_SPEC as a spec.
334 This allows config.h to specify part of the spec for running as.
335 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
336 used here. This can be used to run a post-processor after the
337 assembler has done it's job.
338 %D Dump out a -L option for each directory in startfile_prefixes.
339 If multilib_dir is set, extra entries are generated with it affixed.
340 %l process LINK_SPEC as a spec.
341 %L process LIB_SPEC as a spec.
342 %G process LIBGCC_SPEC as a spec.
343 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
344 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
345 %c process SIGNED_CHAR_SPEC as a spec.
346 %C process CPP_SPEC as a spec. A capital C is actually used here.
347 %1 process CC1_SPEC as a spec.
348 %2 process CC1PLUS_SPEC as a spec.
349 %| output "-" if the input for the current command is coming from a pipe.
350 %* substitute the variable part of a matched option. (See below.)
351 Note that each comma in the substituted string is replaced by
353 %{S} substitutes the -S switch, if that switch was given to CC.
354 If that switch was not specified, this substitutes nothing.
355 Here S is a metasyntactic variable.
356 %{S*} substitutes all the switches specified to CC whose names start
357 with -S. This is used for -o, -D, -I, etc; switches that take
358 arguments. CC considers `-o foo' as being one switch whose
359 name starts with `o'. %{o*} would substitute this text,
360 including the space; thus, two arguments would be generated.
361 %{S*:X} substitutes X if one or more switches whose names start with -S are
362 specified to CC. Note that the tail part of the -S option
363 (i.e. the part matched by the `*') will be substituted for each
364 occurrence of %* within X.
365 %{S:X} substitutes X, but only if the -S switch was given to CC.
366 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
367 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
368 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
369 %{.S:X} substitutes X, but only if processing a file with suffix S.
370 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
371 %(Spec) processes a specification defined in a specs file as *Spec:
372 %[Spec] as above, but put __ around -D arguments
374 The conditional text X in a %{S:X} or %{!S:X} construct may contain
375 other nested % constructs or spaces, or even newlines. They are
376 processed as usual, as described above.
378 The -O, -f, -m, and -W switches are handled specifically in these
379 constructs. If another value of -O or the negated form of a -f, -m, or
380 -W switch is found later in the command line, the earlier switch
381 value is ignored, except with {S*} where S is just one letter; this
382 passes all matching options.
384 The character | is used to indicate that a command should be piped to
385 the following command, but only if -pipe is specified.
387 Note that it is built into CC which switches take arguments and which
388 do not. You might think it would be useful to generalize this to
389 allow each compiler's spec to say which switches take arguments. But
390 this cannot be done in a consistent fashion. CC cannot even decide
391 which input files have been specified without knowing which switches
392 take arguments, and it must know which input files to compile in order
393 to tell which compilers to run.
395 CC also knows implicitly that arguments starting in `-l' are to be
396 treated as compiler output files, and passed to the linker in their
397 proper position among the other output files. */
399 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
401 /* config.h can define ASM_SPEC to provide extra args to the assembler
402 or extra switch-translations. */
407 /* config.h can define ASM_FINAL_SPEC to run a post processor after
408 the assembler has run. */
409 #ifndef ASM_FINAL_SPEC
410 #define ASM_FINAL_SPEC ""
413 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
414 or extra switch-translations. */
419 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
420 or extra switch-translations. */
425 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
426 or extra switch-translations. */
428 #define CC1PLUS_SPEC ""
431 /* config.h can define LINK_SPEC to provide extra args to the linker
432 or extra switch-translations. */
437 /* config.h can define LIB_SPEC to override the default libraries. */
439 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
442 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
445 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
446 /* Have gcc do the search for libgcc.a. */
447 #define LIBGCC_SPEC "libgcc.a%s"
449 #define LIBGCC_SPEC "-lgcc"
453 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
454 #ifndef STARTFILE_SPEC
455 #define STARTFILE_SPEC \
456 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
459 /* config.h can define SWITCHES_NEED_SPACES to control which options
460 require spaces between the option and the argument. */
461 #ifndef SWITCHES_NEED_SPACES
462 #define SWITCHES_NEED_SPACES ""
465 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
467 #define ENDFILE_SPEC ""
470 /* This spec is used for telling cpp whether char is signed or not. */
471 #ifndef SIGNED_CHAR_SPEC
472 /* Use #if rather than ?:
473 because MIPS C compiler rejects like ?: in initializers. */
474 #if DEFAULT_SIGNED_CHAR
475 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
477 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
481 static char *cpp_spec = CPP_SPEC;
482 static char *cpp_predefines = CPP_PREDEFINES;
483 static char *cc1_spec = CC1_SPEC;
484 static char *cc1plus_spec = CC1PLUS_SPEC;
485 static char *signed_char_spec = SIGNED_CHAR_SPEC;
486 static char *asm_spec = ASM_SPEC;
487 static char *asm_final_spec = ASM_FINAL_SPEC;
488 static char *link_spec = LINK_SPEC;
489 static char *lib_spec = LIB_SPEC;
490 static char *libgcc_spec = LIBGCC_SPEC;
491 static char *endfile_spec = ENDFILE_SPEC;
492 static char *startfile_spec = STARTFILE_SPEC;
493 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
495 /* Some compilers have limits on line lengths, and the multilib_select
496 and/or multilib_matches strings can be very long, so we build them at
498 static struct obstack multilib_obstack;
499 static char *multilib_select;
500 static char *multilib_matches;
501 static char *multilib_defaults;
502 #include "multilib.h"
504 /* Check whether a particular argument is a default argument. */
506 #ifndef MULTILIB_DEFAULTS
507 #define MULTILIB_DEFAULTS { "" }
510 static char *multilib_defaults_raw[] = MULTILIB_DEFAULTS;
513 static struct { char *name, *spec; } extra_specs[] = { EXTRA_SPECS };
516 /* This defines which switch letters take arguments. */
518 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
519 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
520 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
521 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
522 || (CHAR) == 'L' || (CHAR) == 'A')
524 #ifndef SWITCH_TAKES_ARG
525 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
528 /* This defines which multi-letter switches take arguments. */
530 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
531 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
532 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
533 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
534 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
535 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
536 || !strcmp (STR, "isystem"))
538 #ifndef WORD_SWITCH_TAKES_ARG
539 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
542 /* Record the mapping from file suffixes for compilation specs. */
546 char *suffix; /* Use this compiler for input files
547 whose names end in this suffix. */
549 char *spec[4]; /* To use this compiler, concatenate these
550 specs and pass to do_spec. */
553 /* Pointer to a vector of `struct compiler' that gives the spec for
554 compiling a file, based on its suffix.
555 A file that does not end in any of these suffixes will be passed
556 unchanged to the loader and nothing else will be done to it.
558 An entry containing two 0s is used to terminate the vector.
560 If multiple entries match a file, the last matching one is used. */
562 static struct compiler *compilers;
564 /* Number of entries in `compilers', not counting the null terminator. */
566 static int n_compilers;
568 /* The default list of file name suffixes and their compilation specs. */
570 static struct compiler default_compilers[] =
572 /* Add lists of suffixes of known languages here. If those languages
573 were no present when we built the driver, we will hit these copies
574 and given a more meaningful error than "file not used since
575 linking is not done". */
576 {".cc", "#C++"}, {".cxx", "#C++"}, {".cpp", "#C++"}, {".c++", "#C++"},
577 {".C", "#C++"}, {".ads", "#Ada"}, {".adb", "#Ada"}, {".ada", "#Ada"},
578 {".f", "#Fortran"}, {".for", "#Fortran"}, {".F", "#Fortran"},
579 {".fpp", "#Fortran"},
580 /* Next come the entries for C. */
583 "cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
584 %{C:%{!E:%eGNU C does not support -C without using -E}}\
585 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
586 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
587 %{ansi:-trigraphs -D__STRICT_ANSI__}\
588 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
589 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
590 %{traditional-cpp:-traditional}\
591 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
592 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
593 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
594 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
595 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
596 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
598 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
599 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
601 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
602 %{!pipe:%g.s} %A\n }}}}"},
604 "%{E:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
605 %{C:%{!E:%eGNU C does not support -C without using -E}}\
606 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
607 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
608 %{ansi:-trigraphs -D__STRICT_ANSI__}\
609 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
610 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
611 %{traditional-cpp:-traditional}\
612 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
614 %{!E:%e-E required when input is from standard input}"},
615 {".m", "@objective-c"},
617 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
618 %{C:%{!E:%eGNU C does not support -C without using -E}}\
619 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
620 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
621 %{ansi:-trigraphs -D__STRICT_ANSI__}\
622 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
623 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
624 %{traditional-cpp:-traditional}\
625 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
626 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
627 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
628 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a*}\
629 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
630 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
631 -lang-objc %{gen-decls} \
633 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
634 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
636 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
637 %{!pipe:%g.s} %A\n }}}}"},
640 "%{!E:%eCompilation of header file requested} \
641 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
642 %{C:%{!E:%eGNU C does not support -C without using -E}}\
643 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
644 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
645 %{ansi:-trigraphs -D__STRICT_ANSI__}\
646 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
647 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
648 %{traditional-cpp:-traditional}\
649 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
651 {".i", "@cpp-output"},
653 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
654 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
655 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
657 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
658 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
660 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
661 %{!pipe:%g.s} %A\n }}}}"},
662 {".s", "@assembler"},
664 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
665 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
667 {".S", "@assembler-with-cpp"},
668 {"@assembler-with-cpp",
669 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
670 %{C:%{!E:%eGNU C does not support -C without using -E}}\
671 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
672 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
673 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
674 %{traditional-cpp:-traditional}\
675 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
676 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
677 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
678 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
679 %{!pipe:%g.s} %A\n }}}}"},
681 /* Mark end of table */
685 /* Number of elements in default_compilers, not counting the terminator. */
687 static int n_default_compilers
688 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
690 /* Here is the spec for running the linker, after compiling all files. */
692 /* -u* was put back because both BSD and SysV seem to support it. */
693 /* %{static:} simply prevents an error message if the target machine
694 doesn't handle -static. */
695 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
696 scripts which exist in user specified directories, or in standard
698 #ifdef LINK_LIBGCC_SPECIAL
699 /* Don't generate -L options. */
700 static char *link_command_spec = "\
702 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
703 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
704 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
706 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
707 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
712 static char *link_command_spec = "\
714 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
715 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
716 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
717 %{static:} %{L*} %D %o\
718 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
719 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
724 /* A vector of options to give to the linker.
725 These options are accumulated by %x,
726 and substituted into the linker command with %X. */
727 static int n_linker_options;
728 static char **linker_options;
730 /* A vector of options to give to the assembler.
731 These options are accumulated by -Wa,
732 and substituted into the assembler command with %Y. */
733 static int n_assembler_options;
734 static char **assembler_options;
736 /* A vector of options to give to the preprocessor.
737 These options are accumulated by -Wp,
738 and substituted into the preprocessor command with %Z. */
739 static int n_preprocessor_options;
740 static char **preprocessor_options;
742 /* Define how to map long options into short ones. */
744 /* This structure describes one mapping. */
747 /* The long option's name. */
749 /* The equivalent short option. */
751 /* Argument info. A string of flag chars; NULL equals no options.
752 a => argument required.
753 o => argument optional.
754 j => join argument to equivalent, making one word.
755 * => require other text after NAME as an argument. */
759 /* This is the table of mappings. Mappings are tried sequentially
760 for each option encountered; the first one that matches, wins. */
762 struct option_map option_map[] =
764 {"--all-warnings", "-Wall", 0},
765 {"--ansi", "-ansi", 0},
766 {"--assemble", "-S", 0},
767 {"--assert", "-A", "a"},
768 {"--comments", "-C", 0},
769 {"--compile", "-c", 0},
770 {"--debug", "-g", "oj"},
771 {"--define-macro", "-D", "a"},
772 {"--dependencies", "-M", 0},
773 {"--dump", "-d", "a"},
774 {"--dumpbase", "-dumpbase", "a"},
775 {"--entry", "-e", 0},
776 {"--extra-warnings", "-W", 0},
777 {"--for-assembler", "-Wa", "a"},
778 {"--for-linker", "-Xlinker", "a"},
779 {"--force-link", "-u", "a"},
780 {"--imacros", "-imacros", "a"},
781 {"--include", "-include", "a"},
782 {"--include-barrier", "-I-", 0},
783 {"--include-directory", "-I", "a"},
784 {"--include-directory-after", "-idirafter", "a"},
785 {"--include-prefix", "-iprefix", "a"},
786 {"--include-with-prefix", "-iwithprefix", "a"},
787 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
788 {"--include-with-prefix-after", "-iwithprefix", "a"},
789 {"--language", "-x", "a"},
790 {"--library-directory", "-L", "a"},
791 {"--machine", "-m", "aj"},
792 {"--machine-", "-m", "*j"},
793 {"--no-line-commands", "-P", 0},
794 {"--no-precompiled-includes", "-noprecomp", 0},
795 {"--no-standard-includes", "-nostdinc", 0},
796 {"--no-standard-libraries", "-nostdlib", 0},
797 {"--no-warnings", "-w", 0},
798 {"--optimize", "-O", "oj"},
799 {"--output", "-o", "a"},
800 {"--pedantic", "-pedantic", 0},
801 {"--pedantic-errors", "-pedantic-errors", 0},
802 {"--pipe", "-pipe", 0},
803 {"--prefix", "-B", "a"},
804 {"--preprocess", "-E", 0},
805 {"--print-search-dirs", "-print-search-dirs", 0},
806 {"--print-file-name", "-print-file-name=", "aj"},
807 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
808 {"--print-missing-file-dependencies", "-MG", 0},
809 {"--print-multi-lib", "-print-multi-lib", 0},
810 {"--print-multi-directory", "-print-multi-directory", 0},
811 {"--print-prog-name", "-print-prog-name=", "aj"},
812 {"--profile", "-p", 0},
813 {"--profile-blocks", "-a", 0},
814 {"--quiet", "-q", 0},
815 {"--save-temps", "-save-temps", 0},
816 {"--shared", "-shared", 0},
817 {"--silent", "-q", 0},
818 {"--static", "-static", 0},
819 {"--symbolic", "-symbolic", 0},
820 {"--target", "-b", "a"},
821 {"--trace-includes", "-H", 0},
822 {"--traditional", "-traditional", 0},
823 {"--traditional-cpp", "-traditional-cpp", 0},
824 {"--trigraphs", "-trigraphs", 0},
825 {"--undefine-macro", "-U", "a"},
826 {"--use-version", "-V", "a"},
827 {"--user-dependencies", "-MM", 0},
828 {"--verbose", "-v", 0},
829 {"--version", "-dumpversion", 0},
830 {"--warn-", "-W", "*j"},
831 {"--write-dependencies", "-MD", 0},
832 {"--write-user-dependencies", "-MMD", 0},
836 /* Translate the options described by *ARGCP and *ARGVP.
837 Make a new vector and store it back in *ARGVP,
838 and store its length in *ARGVC. */
841 translate_options (argcp, argvp)
847 char **argv = *argvp;
848 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
852 newv[newindex++] = argv[i++];
856 /* Translate -- options. */
857 if (argv[i][0] == '-' && argv[i][1] == '-')
859 /* Find a mapping that applies to this option. */
860 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
862 int optlen = strlen (option_map[j].name);
863 int arglen = strlen (argv[i]);
864 int complen = arglen > optlen ? optlen : arglen;
865 char *arginfo = option_map[j].arg_info;
870 if (!strncmp (argv[i], option_map[j].name, complen))
877 k < sizeof (option_map) / sizeof (option_map[0]);
879 if (strlen (option_map[k].name) >= arglen
880 && !strncmp (argv[i], option_map[k].name, arglen))
882 error ("Ambiguous abbreviation %s", argv[i]);
886 if (k != sizeof (option_map) / sizeof (option_map[0]))
892 /* If the option has an argument, accept that. */
893 if (argv[i][optlen] == '=')
894 arg = argv[i] + optlen + 1;
896 /* If this mapping requires extra text at end of name,
897 accept that as "argument". */
898 else if (index (arginfo, '*') != 0)
899 arg = argv[i] + optlen;
901 /* Otherwise, extra text at end means mismatch.
902 Try other mappings. */
907 else if (index (arginfo, '*') != 0)
909 error ("Incomplete `%s' option", option_map[j].name);
913 /* Handle arguments. */
914 if (index (arginfo, 'a') != 0)
920 error ("Missing argument to `%s' option",
928 else if (index (arginfo, '*') != 0)
930 else if (index (arginfo, 'o') == 0)
933 error ("Extraneous argument to `%s' option",
938 /* Store the translation as one argv elt or as two. */
939 if (arg != 0 && index (arginfo, 'j') != 0)
940 newv[newindex++] = concat (option_map[j].equivalent, arg,
944 newv[newindex++] = option_map[j].equivalent;
945 newv[newindex++] = arg;
948 newv[newindex++] = option_map[j].equivalent;
956 /* Handle old-fashioned options--just copy them through,
957 with their arguments. */
958 else if (argv[i][0] == '-')
960 char *p = argv[i] + 1;
964 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
965 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
966 else if (WORD_SWITCH_TAKES_ARG (p))
967 nskip += WORD_SWITCH_TAKES_ARG (p);
968 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
971 else if (! strcmp (p, "Xlinker"))
974 /* Watch out for an option at the end of the command line that
975 is missing arguments, and avoid skipping past the end of the
977 if (nskip + i > argc)
982 newv[newindex++] = argv[i++];
987 /* Ordinary operands, or +e options. */
988 newv[newindex++] = argv[i++];
1001 #ifdef HAVE_STRERROR
1007 static char buffer[30];
1009 return "cannot access";
1011 if (e > 0 && e < sys_nerr)
1012 return sys_errlist[e];
1014 sprintf (buffer, "Unknown error %d", e);
1019 /* Read compilation specs from a file named FILENAME,
1020 replacing the default ones.
1022 A suffix which starts with `*' is a definition for
1023 one of the machine-specific sub-specs. The "suffix" should be
1024 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1025 The corresponding spec is stored in asm_spec, etc.,
1026 rather than in the `compilers' vector.
1028 Anything invalid in the file is a fatal error. */
1031 read_specs (filename)
1036 struct stat statbuf;
1041 fprintf (stderr, "Reading specs from %s\n", filename);
1043 /* Open and stat the file. */
1044 desc = open (filename, O_RDONLY, 0);
1046 pfatal_with_name (filename);
1047 if (stat (filename, &statbuf) < 0)
1048 pfatal_with_name (filename);
1050 /* Read contents of file into BUFFER. */
1051 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1052 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1054 pfatal_with_name (filename);
1055 buffer[readlen] = 0;
1058 /* Scan BUFFER for specs, putting them in the vector. */
1064 char *in, *out, *p1, *p2;
1066 /* Advance P in BUFFER to the next nonblank nocomment line. */
1067 p = skip_whitespace (p);
1071 /* Find the colon that should end the suffix. */
1073 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
1074 /* The colon shouldn't be missing. */
1076 fatal ("specs file malformed after %d characters", p1 - buffer);
1077 /* Skip back over trailing whitespace. */
1079 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
1080 /* Copy the suffix to a string. */
1081 suffix = save_string (p, p2 - p);
1082 /* Find the next line. */
1083 p = skip_whitespace (p1 + 1);
1085 fatal ("specs file malformed after %d characters", p - buffer);
1087 /* Find next blank line. */
1088 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
1089 /* Specs end at the blank line and do not include the newline. */
1090 spec = save_string (p, p1 - p);
1093 /* Delete backslash-newline sequences from the spec. */
1098 if (in[0] == '\\' && in[1] == '\n')
1100 else if (in[0] == '#')
1102 while (*in && *in != '\n') in++;
1109 if (suffix[0] == '*')
1111 if (! strcmp (suffix, "*link_command"))
1112 link_command_spec = spec;
1114 set_spec (suffix + 1, spec);
1118 /* Add this pair to the vector. */
1120 = ((struct compiler *)
1121 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1122 compilers[n_compilers].suffix = suffix;
1123 bzero ((char *) compilers[n_compilers].spec,
1124 sizeof compilers[n_compilers].spec);
1125 compilers[n_compilers].spec[0] = spec;
1127 bzero ((char *) &compilers[n_compilers],
1128 sizeof compilers[n_compilers]);
1132 link_command_spec = spec;
1135 if (link_command_spec == 0)
1136 fatal ("spec file has no spec for linking");
1145 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1146 be considered whitespace. */
1147 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1149 else if (*p == '\n' || *p == ' ' || *p == '\t')
1153 while (*p != '\n') p++;
1163 /* Structure to keep track of the specs that have been defined so far.
1164 These are accessed using %(specname) or %[specname] in a compiler
1169 char *name; /* Name of the spec. */
1170 char *spec; /* The spec itself. */
1171 struct spec_list *next; /* Next spec in linked list. */
1174 /* List of specs that have been defined so far. */
1176 static struct spec_list *specs = (struct spec_list *) 0;
1178 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1179 removed; If the spec starts with a + then SPEC is added to the end of the
1183 set_spec (name, spec)
1187 struct spec_list *sl;
1190 /* See if the spec already exists */
1191 for (sl = specs; sl; sl = sl->next)
1192 if (strcmp (sl->name, name) == 0)
1197 /* Not found - make it */
1198 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1199 sl->name = save_string (name, strlen (name));
1200 sl->spec = save_string ("", 0);
1205 old_spec = sl->spec;
1206 if (name && spec[0] == '+' && isspace (spec[1]))
1207 sl->spec = concat (old_spec, spec + 1, NULL_PTR);
1209 sl->spec = save_string (spec, strlen (spec));
1211 if (! strcmp (name, "asm"))
1212 asm_spec = sl->spec;
1213 else if (! strcmp (name, "asm_final"))
1214 asm_final_spec = sl->spec;
1215 else if (! strcmp (name, "cc1"))
1216 cc1_spec = sl->spec;
1217 else if (! strcmp (name, "cc1plus"))
1218 cc1plus_spec = sl->spec;
1219 else if (! strcmp (name, "cpp"))
1220 cpp_spec = sl->spec;
1221 else if (! strcmp (name, "endfile"))
1222 endfile_spec = sl->spec;
1223 else if (! strcmp (name, "lib"))
1224 lib_spec = sl->spec;
1225 else if (! strcmp (name, "libgcc"))
1226 libgcc_spec = sl->spec;
1227 else if (! strcmp (name, "link"))
1228 link_spec = sl->spec;
1229 else if (! strcmp (name, "predefines"))
1230 cpp_predefines = sl->spec;
1231 else if (! strcmp (name, "signed_char"))
1232 signed_char_spec = sl->spec;
1233 else if (! strcmp (name, "startfile"))
1234 startfile_spec = sl->spec;
1235 else if (! strcmp (name, "switches_need_spaces"))
1236 switches_need_spaces = sl->spec;
1237 else if (! strcmp (name, "cross_compile"))
1238 cross_compile = atoi (sl->spec);
1239 else if (! strcmp (name, "multilib"))
1240 multilib_select = sl->spec;
1241 else if (! strcmp (name, "multilib_matches"))
1242 multilib_matches = sl->spec;
1243 else if (! strcmp (name, "multilib_extra"))
1244 multilib_extra = sl->spec;
1245 else if (! strcmp (name, "multilib_defaults"))
1246 multilib_defaults = sl->spec;
1247 else if (! strcmp (name, "version"))
1248 compiler_version = sl->spec;
1253 for (i = 0; i < sizeof (extra_specs) / sizeof (extra_specs[0]); i++)
1255 if (! strcmp (name, extra_specs[i].name))
1257 extra_specs[i].spec = sl->spec;
1264 /* Free the old spec */
1269 /* Accumulate a command (program name and args), and run it. */
1271 /* Vector of pointers to arguments in the current line of specifications. */
1273 static char **argbuf;
1275 /* Number of elements allocated in argbuf. */
1277 static int argbuf_length;
1279 /* Number of elements in argbuf currently in use (containing args). */
1281 static int argbuf_index;
1283 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1284 temp file. Used only if MKTEMP_EACH_FILE. */
1286 static struct temp_name {
1287 char *suffix; /* suffix associated with the code. */
1288 int length; /* strlen (suffix). */
1289 int unique; /* Indicates whether %g or %u/%U was used. */
1290 char *filename; /* associated filename. */
1291 int filename_length; /* strlen (filename). */
1292 struct temp_name *next;
1295 /* Number of commands executed so far. */
1297 static int execution_count;
1299 /* Number of commands that exited with a signal. */
1301 static int signal_count;
1303 /* Name with which this program was invoked. */
1305 static char *programname;
1307 /* Structures to keep track of prefixes to try when looking for files. */
1311 char *prefix; /* String to prepend to the path. */
1312 struct prefix_list *next; /* Next in linked list. */
1313 int require_machine_suffix; /* Don't use without machine_suffix. */
1314 /* 2 means try both machine_suffix and just_machine_suffix. */
1315 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1320 struct prefix_list *plist; /* List of prefixes to try */
1321 int max_len; /* Max length of a prefix in PLIST */
1322 char *name; /* Name of this list (used in config stuff) */
1325 /* List of prefixes to try when looking for executables. */
1327 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1329 /* List of prefixes to try when looking for startup (crt0) files. */
1331 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1333 /* List of prefixes to try when looking for include files. */
1335 static struct path_prefix include_prefixes = { 0, 0, "include" };
1337 /* Suffix to attach to directories searched for commands.
1338 This looks like `MACHINE/VERSION/'. */
1340 static char *machine_suffix = 0;
1342 /* Suffix to attach to directories searched for commands.
1343 This is just `MACHINE/'. */
1345 static char *just_machine_suffix = 0;
1347 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1349 static char *gcc_exec_prefix;
1351 /* Default prefixes to attach to command names. */
1353 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1354 #undef MD_EXEC_PREFIX
1355 #undef MD_STARTFILE_PREFIX
1356 #undef MD_STARTFILE_PREFIX_1
1359 #ifndef STANDARD_EXEC_PREFIX
1360 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1361 #endif /* !defined STANDARD_EXEC_PREFIX */
1363 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1364 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1365 #ifdef MD_EXEC_PREFIX
1366 static char *md_exec_prefix = MD_EXEC_PREFIX;
1369 #ifndef STANDARD_STARTFILE_PREFIX
1370 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1371 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1373 #ifdef MD_STARTFILE_PREFIX
1374 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1376 #ifdef MD_STARTFILE_PREFIX_1
1377 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1379 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1380 static char *standard_startfile_prefix_1 = "/lib/";
1381 static char *standard_startfile_prefix_2 = "/usr/lib/";
1383 #ifndef TOOLDIR_BASE_PREFIX
1384 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1386 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1387 static char *tooldir_prefix;
1389 /* Subdirectory to use for locating libraries. Set by
1390 set_multilib_dir based on the compilation options. */
1392 static char *multilib_dir;
1394 /* Clear out the vector of arguments (after a command is executed). */
1402 /* Add one argument to the vector at the end.
1403 This is done when a space is seen or at the end of the line.
1404 If DELETE_ALWAYS is nonzero, the arg is a filename
1405 and the file should be deleted eventually.
1406 If DELETE_FAILURE is nonzero, the arg is a filename
1407 and the file should be deleted if this compilation fails. */
1410 store_arg (arg, delete_always, delete_failure)
1412 int delete_always, delete_failure;
1414 if (argbuf_index + 1 == argbuf_length)
1416 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1419 argbuf[argbuf_index++] = arg;
1420 argbuf[argbuf_index] = 0;
1422 if (delete_always || delete_failure)
1423 record_temp_file (arg, delete_always, delete_failure);
1426 /* Record the names of temporary files we tell compilers to write,
1427 and delete them at the end of the run. */
1429 /* This is the common prefix we use to make temp file names.
1430 It is chosen once for each run of this program.
1431 It is substituted into a spec by %g.
1432 Thus, all temp file names contain this prefix.
1433 In practice, all temp file names start with this prefix.
1435 This prefix comes from the envvar TMPDIR if it is defined;
1436 otherwise, from the P_tmpdir macro if that is defined;
1437 otherwise, in /usr/tmp or /tmp;
1438 or finally the current directory if all else fails. */
1440 static char *temp_filename;
1442 /* Length of the prefix. */
1444 static int temp_filename_length;
1446 /* Define the list of temporary files to delete. */
1451 struct temp_file *next;
1454 /* Queue of files to delete on success or failure of compilation. */
1455 static struct temp_file *always_delete_queue;
1456 /* Queue of files to delete on failure of compilation. */
1457 static struct temp_file *failure_delete_queue;
1459 /* Record FILENAME as a file to be deleted automatically.
1460 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1461 otherwise delete it in any case.
1462 FAIL_DELETE nonzero means delete it if a compilation step fails;
1463 otherwise delete it in any case. */
1466 record_temp_file (filename, always_delete, fail_delete)
1471 register char *name;
1472 name = xmalloc (strlen (filename) + 1);
1473 strcpy (name, filename);
1477 register struct temp_file *temp;
1478 for (temp = always_delete_queue; temp; temp = temp->next)
1479 if (! strcmp (name, temp->name))
1481 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1482 temp->next = always_delete_queue;
1484 always_delete_queue = temp;
1490 register struct temp_file *temp;
1491 for (temp = failure_delete_queue; temp; temp = temp->next)
1492 if (! strcmp (name, temp->name))
1494 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1495 temp->next = failure_delete_queue;
1497 failure_delete_queue = temp;
1502 /* Delete all the temporary files whose names we previously recorded. */
1505 delete_if_ordinary (name)
1512 printf ("Delete %s? (y or n) ", name);
1516 while ((c = getchar ()) != '\n' && c != EOF) ;
1517 if (i == 'y' || i == 'Y')
1519 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1520 if (unlink (name) < 0)
1522 perror_with_name (name);
1526 delete_temp_files ()
1528 register struct temp_file *temp;
1530 for (temp = always_delete_queue; temp; temp = temp->next)
1531 delete_if_ordinary (temp->name);
1532 always_delete_queue = 0;
1535 /* Delete all the files to be deleted on error. */
1538 delete_failure_queue ()
1540 register struct temp_file *temp;
1542 for (temp = failure_delete_queue; temp; temp = temp->next)
1543 delete_if_ordinary (temp->name);
1547 clear_failure_queue ()
1549 failure_delete_queue = 0;
1552 /* Routine to add variables to the environment. We do this to pass
1553 the pathname of the gcc driver, and the directories search to the
1554 collect2 program, which is being run as ld. This way, we can be
1555 sure of executing the right compiler when collect2 wants to build
1556 constructors and destructors. Since the environment variables we
1557 use come from an obstack, we don't have to worry about allocating
1566 #ifndef VMS /* nor about VMS */
1568 extern char **environ;
1569 char **old_environ = environ;
1573 int str_len = strlen (str);
1577 while ((ch = *p++) != '\0' && ch != '=')
1583 /* Search for replacing an existing environment variable, and
1584 count the number of total environment variables. */
1585 for (envp = old_environ; *envp; envp++)
1588 if (!strncmp (str, *envp, name_len))
1595 /* Add a new environment variable */
1596 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1598 bcopy ((char *) old_environ, (char *) (environ + 1),
1599 sizeof (char *) * (num_envs+1));
1604 #endif /* HAVE_PUTENV */
1607 /* Build a list of search directories from PATHS.
1608 PREFIX is a string to prepend to the list.
1609 If CHECK_DIR_P is non-zero we ensure the directory exists.
1610 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1611 It is also used by the --print-search-dirs flag. */
1614 build_search_list (paths, prefix, check_dir_p)
1615 struct path_prefix *paths;
1619 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1621 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1622 int first_time = TRUE;
1623 struct prefix_list *pprefix;
1625 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1627 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1629 int len = strlen (pprefix->prefix);
1633 || is_directory (pprefix->prefix, machine_suffix, 0)))
1636 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1639 obstack_grow (&collect_obstack, pprefix->prefix, len);
1640 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1643 if (just_machine_suffix
1644 && pprefix->require_machine_suffix == 2
1646 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1649 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1652 obstack_grow (&collect_obstack, pprefix->prefix, len);
1653 obstack_grow (&collect_obstack, just_machine_suffix,
1657 if (!pprefix->require_machine_suffix)
1660 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1663 obstack_grow (&collect_obstack, pprefix->prefix, len);
1666 obstack_1grow (&collect_obstack, '\0');
1667 return obstack_finish (&collect_obstack);
1670 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1674 putenv_from_prefixes (paths, env_var)
1675 struct path_prefix *paths;
1678 putenv (build_search_list (paths, env_var, 1));
1681 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1682 access to check permissions.
1683 Return 0 if not found, otherwise return its name, allocated with malloc. */
1686 find_a_file (pprefix, name, mode)
1687 struct path_prefix *pprefix;
1692 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1693 struct prefix_list *pl;
1694 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1697 len += strlen (machine_suffix);
1699 temp = xmalloc (len);
1701 /* Determine the filename to execute (special case for absolute paths). */
1703 if (*name == '/' || *name == DIR_SEPARATOR)
1705 if (access (name, mode))
1707 strcpy (temp, name);
1712 for (pl = pprefix->plist; pl; pl = pl->next)
1716 /* Some systems have a suffix for executable files.
1717 So try appending that first. */
1718 if (file_suffix[0] != 0)
1720 strcpy (temp, pl->prefix);
1721 strcat (temp, machine_suffix);
1722 strcat (temp, name);
1723 strcat (temp, file_suffix);
1724 if (access (temp, mode) == 0)
1726 if (pl->used_flag_ptr != 0)
1727 *pl->used_flag_ptr = 1;
1732 /* Now try just the name. */
1733 strcpy (temp, pl->prefix);
1734 strcat (temp, machine_suffix);
1735 strcat (temp, name);
1736 if (access (temp, mode) == 0)
1738 if (pl->used_flag_ptr != 0)
1739 *pl->used_flag_ptr = 1;
1744 /* Certain prefixes are tried with just the machine type,
1745 not the version. This is used for finding as, ld, etc. */
1746 if (just_machine_suffix && pl->require_machine_suffix == 2)
1748 /* Some systems have a suffix for executable files.
1749 So try appending that first. */
1750 if (file_suffix[0] != 0)
1752 strcpy (temp, pl->prefix);
1753 strcat (temp, just_machine_suffix);
1754 strcat (temp, name);
1755 strcat (temp, file_suffix);
1756 if (access (temp, mode) == 0)
1758 if (pl->used_flag_ptr != 0)
1759 *pl->used_flag_ptr = 1;
1764 strcpy (temp, pl->prefix);
1765 strcat (temp, just_machine_suffix);
1766 strcat (temp, name);
1767 if (access (temp, mode) == 0)
1769 if (pl->used_flag_ptr != 0)
1770 *pl->used_flag_ptr = 1;
1775 /* Certain prefixes can't be used without the machine suffix
1776 when the machine or version is explicitly specified. */
1777 if (!pl->require_machine_suffix)
1779 /* Some systems have a suffix for executable files.
1780 So try appending that first. */
1781 if (file_suffix[0] != 0)
1783 strcpy (temp, pl->prefix);
1784 strcat (temp, name);
1785 strcat (temp, file_suffix);
1786 if (access (temp, mode) == 0)
1788 if (pl->used_flag_ptr != 0)
1789 *pl->used_flag_ptr = 1;
1794 strcpy (temp, pl->prefix);
1795 strcat (temp, name);
1796 if (access (temp, mode) == 0)
1798 if (pl->used_flag_ptr != 0)
1799 *pl->used_flag_ptr = 1;
1809 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1810 at the start of the list, otherwise it goes at the end.
1812 If WARN is nonzero, we will warn if no file is found
1813 through this prefix. WARN should point to an int
1814 which will be set to 1 if this entry is used.
1816 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1817 the complete value of machine_suffix.
1818 2 means try both machine_suffix and just_machine_suffix. */
1821 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1822 struct path_prefix *pprefix;
1825 int require_machine_suffix;
1828 struct prefix_list *pl, **prev;
1831 if (!first && pprefix->plist)
1833 for (pl = pprefix->plist; pl->next; pl = pl->next)
1838 prev = &pprefix->plist;
1840 /* Keep track of the longest prefix */
1842 len = strlen (prefix);
1843 if (len > pprefix->max_len)
1844 pprefix->max_len = len;
1846 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1847 pl->prefix = save_string (prefix, len);
1848 pl->require_machine_suffix = require_machine_suffix;
1849 pl->used_flag_ptr = warn;
1856 pl->next = (struct prefix_list *) 0;
1860 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1863 unused_prefix_warnings (pprefix)
1864 struct path_prefix *pprefix;
1866 struct prefix_list *pl = pprefix->plist;
1870 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1872 if (pl->require_machine_suffix && machine_suffix)
1873 error ("file path prefix `%s%s' never used", pl->prefix,
1876 error ("file path prefix `%s' never used", pl->prefix);
1878 /* Prevent duplicate warnings. */
1879 *pl->used_flag_ptr = 1;
1885 /* Get rid of all prefixes built up so far in *PLISTP. */
1888 free_path_prefix (pprefix)
1889 struct path_prefix *pprefix;
1891 struct prefix_list *pl = pprefix->plist;
1892 struct prefix_list *temp;
1898 free (temp->prefix);
1899 free ((char *) temp);
1901 pprefix->plist = (struct prefix_list *) 0;
1904 /* Execute the command specified by the arguments on the current line of spec.
1905 When using pipes, this includes several piped-together commands
1906 with `|' between them.
1908 Return 0 if successful, -1 if failed. */
1914 int n_commands; /* # of command. */
1918 char *prog; /* program name. */
1919 char **argv; /* vector of args. */
1920 int pid; /* pid of process for this command. */
1923 struct command *commands; /* each command buffer with above info. */
1925 /* Count # of piped commands. */
1926 for (n_commands = 1, i = 0; i < argbuf_index; i++)
1927 if (strcmp (argbuf[i], "|") == 0)
1930 /* Get storage for each command. */
1932 = (struct command *) alloca (n_commands * sizeof (struct command));
1934 /* Split argbuf into its separate piped processes,
1935 and record info about each one.
1936 Also search for the programs that are to be run. */
1938 commands[0].prog = argbuf[0]; /* first command. */
1939 commands[0].argv = &argbuf[0];
1940 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
1942 commands[0].argv[0] = string;
1944 for (n_commands = 1, i = 0; i < argbuf_index; i++)
1945 if (strcmp (argbuf[i], "|") == 0)
1946 { /* each command. */
1947 #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__)) || defined (OS2)
1948 fatal ("-pipe not supported");
1950 argbuf[i] = 0; /* termination of command args. */
1951 commands[n_commands].prog = argbuf[i + 1];
1952 commands[n_commands].argv = &argbuf[i + 1];
1953 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
1955 commands[n_commands].argv[0] = string;
1959 argbuf[argbuf_index] = 0;
1961 /* If -v, print what we are about to do, and maybe query. */
1965 /* Print each piped command as a separate line. */
1966 for (i = 0; i < n_commands ; i++)
1970 for (j = commands[i].argv; *j; j++)
1971 fprintf (stderr, " %s", *j);
1973 /* Print a pipe symbol after all but the last command. */
1974 if (i + 1 != n_commands)
1975 fprintf (stderr, " |");
1976 fprintf (stderr, "\n");
1980 fprintf (stderr, "\nGo ahead? (y or n) ");
1984 while (getchar () != '\n') ;
1985 if (i != 'y' && i != 'Y')
1990 /* Run each piped subprocess. */
1992 for (i = 0; i < n_commands; i++)
1994 char *errmsg_fmt, *errmsg_arg;
1995 char *string = commands[i].argv[0];
1997 commands[i].pid = pexecute (string, commands[i].argv,
1998 programname, temp_filename,
1999 &errmsg_fmt, &errmsg_arg,
2000 ((i == 0 ? PEXECUTE_FIRST : 0)
2001 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2002 | (string == commands[i].prog
2003 ? PEXECUTE_SEARCH : 0)
2004 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2006 if (commands[i].pid == -1)
2007 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2009 if (string != commands[i].prog)
2015 /* Wait for all the subprocesses to finish.
2016 We don't care what order they finish in;
2017 we know that N_COMMANDS waits will get them all.
2018 Ignore subprocesses that we don't know about,
2019 since they can be spawned by the process that exec'ed us. */
2024 for (i = 0; i < n_commands; )
2030 pid = pwait (commands[i].pid, &status, 0);
2034 for (j = 0; j < n_commands; j++)
2035 if (commands[j].pid == pid)
2040 if (WIFSIGNALED (status))
2042 fatal ("Internal compiler error: program %s got fatal signal %d",
2043 commands[j].prog, WTERMSIG (status));
2047 else if (WIFEXITED (status)
2048 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2058 /* Find all the switches given to us
2059 and make a vector describing them.
2060 The elements of the vector are strings, one per switch given.
2061 If a switch uses following arguments, then the `part1' field
2062 is the switch itself and the `args' field
2063 is a null-terminated vector containing the following arguments.
2064 The `live_cond' field is 1 if the switch is true in a conditional spec,
2065 -1 if false (overridden by a later switch), and is initialized to zero.
2066 The `valid' field is nonzero if any spec has looked at this switch;
2067 if it remains zero at the end of the run, it must be meaningless. */
2077 static struct switchstr *switches;
2079 static int n_switches;
2087 /* Also a vector of input files specified. */
2089 static struct infile *infiles;
2091 static int n_infiles;
2093 /* And a vector of corresponding output files is made up later. */
2095 static char **outfiles;
2097 /* Used to track if none of the -B paths are used. */
2100 /* Used to track if standard path isn't used and -b or -V is specified. */
2101 static int warn_std;
2103 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2104 static int *warn_std_ptr = 0;
2107 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2109 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2110 is true if we should look for an executable suffix as well. */
2113 convert_filename (name, do_exe)
2118 int len = strlen (name);
2120 #ifdef HAVE_OBJECT_SUFFIX
2121 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2123 && name[len - 2] == '.'
2124 && name[len - 1] == 'o')
2126 obstack_grow (&obstack, name[i], len - 2);
2127 obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2128 name = obstack_finish (&obstack);
2132 #ifdef HAVE_EXECUTABLE_SUFFIX
2133 /* If there is no filetype, make it the executable suffix (which includes
2134 the "."). But don't get confused if we have just "-o". */
2135 if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2138 for (i = len - 1; i >= 0; i--)
2139 if (name[i] == '/' || name[i] == DIR_SEPARATOR)
2142 for (i++; i < len; i++)
2146 obstack_grow (&obstack, name, len);
2147 obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX));
2148 name = obstack_finish (&obstack);
2155 /* Create the vector `switches' and its contents.
2156 Store its length in `n_switches'. */
2159 process_command (argc, argv)
2165 char *spec_lang = 0;
2166 int last_language_n_infiles;
2169 int lang_n_infiles = 0;
2171 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2176 /* Figure compiler version from version string. */
2178 compiler_version = save_string (version_string, strlen (version_string));
2179 for (temp = compiler_version; *temp; ++temp)
2188 /* Set up the default search paths. */
2190 if (gcc_exec_prefix)
2192 add_prefix (&exec_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2193 add_prefix (&startfile_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2196 /* COMPILER_PATH and LIBRARY_PATH have values
2197 that are lists of directory names with colons. */
2199 temp = getenv ("COMPILER_PATH");
2202 char *startp, *endp;
2203 char *nstore = (char *) alloca (strlen (temp) + 3);
2205 startp = endp = temp;
2208 if (*endp == PATH_SEPARATOR || *endp == 0)
2210 strncpy (nstore, startp, endp-startp);
2212 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2213 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2215 nstore[endp-startp] = DIR_SEPARATOR;
2216 nstore[endp-startp+1] = 0;
2219 nstore[endp-startp] = 0;
2220 add_prefix (&exec_prefixes, nstore, 0, 0, NULL_PTR);
2223 endp = startp = endp + 1;
2230 temp = getenv ("LIBRARY_PATH");
2231 if (temp && ! cross_compile)
2233 char *startp, *endp;
2234 char *nstore = (char *) alloca (strlen (temp) + 3);
2236 startp = endp = temp;
2239 if (*endp == PATH_SEPARATOR || *endp == 0)
2241 strncpy (nstore, startp, endp-startp);
2243 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2244 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2246 nstore[endp-startp] = DIR_SEPARATOR;
2247 nstore[endp-startp+1] = 0;
2250 nstore[endp-startp] = 0;
2251 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2254 endp = startp = endp + 1;
2261 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2262 temp = getenv ("LPATH");
2263 if (temp && ! cross_compile)
2265 char *startp, *endp;
2266 char *nstore = (char *) alloca (strlen (temp) + 3);
2268 startp = endp = temp;
2271 if (*endp == PATH_SEPARATOR || *endp == 0)
2273 strncpy (nstore, startp, endp-startp);
2275 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2276 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2278 nstore[endp-startp] = DIR_SEPARATOR;
2279 nstore[endp-startp+1] = 0;
2282 nstore[endp-startp] = 0;
2283 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2286 endp = startp = endp + 1;
2293 /* Convert new-style -- options to old-style. */
2294 translate_options (&argc, &argv);
2296 /* Scan argv twice. Here, the first time, just count how many switches
2297 there will be in their vector, and how many input files in theirs.
2298 Here we also parse the switches that cc itself uses (e.g. -v). */
2300 for (i = 1; i < argc; i++)
2302 if (! strcmp (argv[i], "-dumpspecs"))
2304 printf ("*asm:\n%s\n\n", asm_spec);
2305 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2306 printf ("*cpp:\n%s\n\n", cpp_spec);
2307 printf ("*cc1:\n%s\n\n", cc1_spec);
2308 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2309 printf ("*endfile:\n%s\n\n", endfile_spec);
2310 printf ("*link:\n%s\n\n", link_spec);
2311 printf ("*lib:\n%s\n\n", lib_spec);
2312 printf ("*libgcc:\n%s\n\n", libgcc_spec);
2313 printf ("*startfile:\n%s\n\n", startfile_spec);
2314 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2315 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2316 printf ("*predefines:\n%s\n\n", cpp_predefines);
2317 printf ("*cross_compile:\n%d\n\n", cross_compile);
2318 printf ("*version:\n%s\n\n", compiler_version);
2319 printf ("*multilib:\n%s\n\n", multilib_select);
2320 printf ("*multilib_defaults:\n%s\n\n", multilib_defaults);
2321 printf ("*multilib_extra:\n%s\n\n", multilib_extra);
2322 printf ("*multilib_matches:\n%s\n\n", multilib_matches);
2327 for (j = 0; j < sizeof (extra_specs) / sizeof (extra_specs[0]); j++)
2328 printf ("*%s:\n%s\n\n", extra_specs[j].name,
2329 (extra_specs[j].spec) ? extra_specs[j].spec : "");
2334 else if (! strcmp (argv[i], "-dumpversion"))
2336 printf ("%s\n", version_string);
2339 else if (! strcmp (argv[i], "-dumpmachine"))
2341 printf ("%s\n", spec_machine);
2344 else if (! strcmp (argv[i], "-print-search-dirs"))
2345 print_search_dirs = 1;
2346 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2347 print_file_name = "libgcc.a";
2348 else if (! strncmp (argv[i], "-print-file-name=", 17))
2349 print_file_name = argv[i] + 17;
2350 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2351 print_prog_name = argv[i] + 17;
2352 else if (! strcmp (argv[i], "-print-multi-lib"))
2353 print_multi_lib = 1;
2354 else if (! strcmp (argv[i], "-print-multi-directory"))
2355 print_multi_directory = 1;
2356 else if (! strncmp (argv[i], "-Wa,", 4))
2359 /* Pass the rest of this option to the assembler. */
2361 n_assembler_options++;
2362 if (!assembler_options)
2364 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2367 = (char **) xrealloc (assembler_options,
2368 n_assembler_options * sizeof (char **));
2370 /* Split the argument at commas. */
2372 for (j = 4; argv[i][j]; j++)
2373 if (argv[i][j] == ',')
2375 assembler_options[n_assembler_options - 1]
2376 = save_string (argv[i] + prev, j - prev);
2377 n_assembler_options++;
2379 = (char **) xrealloc (assembler_options,
2380 n_assembler_options * sizeof (char **));
2383 /* Record the part after the last comma. */
2384 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2386 else if (! strncmp (argv[i], "-Wp,", 4))
2389 /* Pass the rest of this option to the preprocessor. */
2391 n_preprocessor_options++;
2392 if (!preprocessor_options)
2393 preprocessor_options
2394 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2396 preprocessor_options
2397 = (char **) xrealloc (preprocessor_options,
2398 n_preprocessor_options * sizeof (char **));
2400 /* Split the argument at commas. */
2402 for (j = 4; argv[i][j]; j++)
2403 if (argv[i][j] == ',')
2405 preprocessor_options[n_preprocessor_options - 1]
2406 = save_string (argv[i] + prev, j - prev);
2407 n_preprocessor_options++;
2408 preprocessor_options
2409 = (char **) xrealloc (preprocessor_options,
2410 n_preprocessor_options * sizeof (char **));
2413 /* Record the part after the last comma. */
2414 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2416 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2417 /* The +e options to the C++ front-end. */
2419 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2422 /* Split the argument at commas. */
2423 for (j = 3; argv[i][j]; j++)
2424 n_infiles += (argv[i][j] == ',');
2426 else if (strcmp (argv[i], "-Xlinker") == 0)
2429 fatal ("argument to `-Xlinker' is missing");
2434 else if (strncmp (argv[i], "-l", 2) == 0)
2436 else if (strcmp (argv[i], "-save-temps") == 0)
2438 save_temps_flag = 1;
2441 else if (argv[i][0] == '-' && argv[i][1] != 0)
2443 register char *p = &argv[i][1];
2444 register int c = *p;
2449 if (p[1] == 0 && i + 1 == argc)
2450 fatal ("argument to `-b' is missing");
2452 spec_machine = argv[++i];
2454 spec_machine = p + 1;
2456 warn_std_ptr = &warn_std;
2461 int *temp = (int *) xmalloc (sizeof (int));
2463 if (p[1] == 0 && i + 1 == argc)
2464 fatal ("argument to `-B' is missing");
2469 add_prefix (&exec_prefixes, value, 1, 0, &warn_B);
2470 add_prefix (&startfile_prefixes, value, 1, 0, &warn_B);
2471 add_prefix (&include_prefixes, concat (value, "include", NULL_PTR),
2474 /* As a kludge, if the arg is "[foo/]stageN/", just add
2475 "[foo/]include" to the include prefix. */
2477 int len = strlen (value);
2480 && (value[len - 8] == '/'
2481 || value[len - 8] == DIR_SEPARATOR)))
2482 && strncmp (value + len - 7, "stage", 5) == 0
2483 && isdigit (value[len - 2])
2484 && (value[len - 1] == '/'
2485 || value[len - 1] == DIR_SEPARATOR))
2488 add_prefix (&include_prefixes, "include",
2492 char *string = xmalloc (len + 1);
2493 strncpy (string, value, len-7);
2494 strcat (string, "include");
2495 add_prefix (&include_prefixes, string,
2503 case 'v': /* Print our subcommands and print versions. */
2505 /* If they do anything other than exactly `-v', don't set
2506 verbose_flag; rather, continue on to give the error. */
2513 if (p[1] == 0 && i + 1 == argc)
2514 fatal ("argument to `-V' is missing");
2516 spec_version = argv[++i];
2518 spec_version = p + 1;
2519 compiler_version = spec_version;
2520 warn_std_ptr = &warn_std;
2534 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
2535 argv[i] = convert_filename (argv[i], 1);
2537 argv[i+1] = convert_filename (argv[i+1], 1);
2545 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2546 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2547 else if (WORD_SWITCH_TAKES_ARG (p))
2548 i += WORD_SWITCH_TAKES_ARG (p);
2558 if (have_c && have_o && lang_n_infiles > 1)
2559 fatal ("cannot specify -o with -c and multiple compilations");
2561 /* Set up the search paths before we go looking for config files. */
2563 /* These come before the md prefixes so that we will find gcc's subcommands
2564 (such as cpp) rather than those of the host system. */
2565 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2566 as well as trying the machine and the version. */
2568 add_prefix (&exec_prefixes, standard_exec_prefix, 0, 2, warn_std_ptr);
2569 add_prefix (&exec_prefixes, standard_exec_prefix_1, 0, 2, warn_std_ptr);
2572 add_prefix (&startfile_prefixes, standard_exec_prefix, 0, 1, warn_std_ptr);
2573 add_prefix (&startfile_prefixes, standard_exec_prefix_1, 0, 1, warn_std_ptr);
2575 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
2576 dir_separator_str, NULL_PTR);
2578 /* If tooldir is relative, base it on exec_prefixes. A relative
2579 tooldir lets us move the installed tree as a unit.
2581 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2582 directories, so that we can search both the user specified directory
2583 and the standard place. */
2585 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
2587 if (gcc_exec_prefix)
2589 char *gcc_exec_tooldir_prefix
2590 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
2591 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
2593 add_prefix (&exec_prefixes,
2594 concat (gcc_exec_tooldir_prefix, "bin",
2595 dir_separator_str, NULL_PTR),
2597 add_prefix (&startfile_prefixes,
2598 concat (gcc_exec_tooldir_prefix, "lib",
2599 dir_separator_str, NULL_PTR),
2603 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
2604 dir_separator_str, spec_version,
2605 dir_separator_str, tooldir_prefix, NULL_PTR);
2608 add_prefix (&exec_prefixes,
2609 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
2611 add_prefix (&startfile_prefixes,
2612 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
2615 /* More prefixes are enabled in main, after we read the specs file
2616 and determine whether this is cross-compilation or not. */
2619 /* Then create the space for the vectors and scan again. */
2621 switches = ((struct switchstr *)
2622 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2623 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2626 last_language_n_infiles = -1;
2628 /* This, time, copy the text of each switch and store a pointer
2629 to the copy in the vector of switches.
2630 Store all the infiles in their vector. */
2632 for (i = 1; i < argc; i++)
2634 /* Just skip the switches that were handled by the preceding loop. */
2635 if (! strncmp (argv[i], "-Wa,", 4))
2637 else if (! strncmp (argv[i], "-Wp,", 4))
2639 else if (! strcmp (argv[i], "-print-search-dirs"))
2641 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2643 else if (! strncmp (argv[i], "-print-file-name=", 17))
2645 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2647 else if (! strcmp (argv[i], "-print-multi-lib"))
2649 else if (! strcmp (argv[i], "-print-multi-directory"))
2651 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2653 /* Compensate for the +e options to the C++ front-end;
2654 they're there simply for cfront call-compatibility. We do
2655 some magic in default_compilers to pass them down properly.
2656 Note we deliberately start at the `+' here, to avoid passing
2657 -e0 or -e1 down into the linker. */
2658 switches[n_switches].part1 = &argv[i][0];
2659 switches[n_switches].args = 0;
2660 switches[n_switches].live_cond = 0;
2661 switches[n_switches].valid = 0;
2664 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2667 /* Split the argument at commas. */
2669 for (j = 4; argv[i][j]; j++)
2670 if (argv[i][j] == ',')
2672 infiles[n_infiles].language = 0;
2673 infiles[n_infiles++].name
2674 = save_string (argv[i] + prev, j - prev);
2677 /* Record the part after the last comma. */
2678 infiles[n_infiles].language = 0;
2679 infiles[n_infiles++].name = argv[i] + prev;
2681 else if (strcmp (argv[i], "-Xlinker") == 0)
2683 infiles[n_infiles].language = 0;
2684 infiles[n_infiles++].name = argv[++i];
2686 else if (strncmp (argv[i], "-l", 2) == 0)
2688 infiles[n_infiles].language = 0;
2689 infiles[n_infiles++].name = argv[i];
2691 else if (argv[i][0] == '-' && argv[i][1] != 0)
2693 register char *p = &argv[i][1];
2694 register int c = *p;
2696 if (c == 'B' || c == 'b' || c == 'V')
2698 /* Skip a separate arg, if any. */
2705 if (p[1] == 0 && i + 1 == argc)
2706 fatal ("argument to `-x' is missing");
2708 spec_lang = argv[++i];
2711 if (! strcmp (spec_lang, "none"))
2712 /* Suppress the warning if -xnone comes after the last input
2713 file, because alternate command interfaces like g++ might
2714 find it useful to place -xnone after each input file. */
2717 last_language_n_infiles = n_infiles;
2720 switches[n_switches].part1 = p;
2721 /* Deal with option arguments in separate argv elements. */
2722 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2723 || WORD_SWITCH_TAKES_ARG (p))
2726 int n_args = WORD_SWITCH_TAKES_ARG (p);
2730 /* Count only the option arguments in separate argv elements. */
2731 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2733 if (i + n_args >= argc)
2734 fatal ("argument to `-%s' is missing", p);
2735 switches[n_switches].args
2736 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2738 switches[n_switches].args[j++] = argv[++i];
2739 /* Null-terminate the vector. */
2740 switches[n_switches].args[j] = 0;
2742 else if (index (switches_need_spaces, c))
2744 /* On some systems, ld cannot handle some options without
2745 a space. So split the option from its argument. */
2746 char *part1 = (char *) xmalloc (2);
2750 switches[n_switches].part1 = part1;
2751 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2752 switches[n_switches].args[0] = xmalloc (strlen (p));
2753 strcpy (switches[n_switches].args[0], &p[1]);
2754 switches[n_switches].args[1] = 0;
2757 switches[n_switches].args = 0;
2759 switches[n_switches].live_cond = 0;
2760 switches[n_switches].valid = 0;
2761 /* This is always valid, since gcc.c itself understands it. */
2762 if (!strcmp (p, "save-temps"))
2763 switches[n_switches].valid = 1;
2768 #ifdef HAVE_OBJECT_SUFFIX
2769 argv[i] = convert_filename (argv[i], 0);
2772 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
2774 perror_with_name (argv[i]);
2779 infiles[n_infiles].language = spec_lang;
2780 infiles[n_infiles++].name = argv[i];
2785 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2786 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2788 switches[n_switches].part1 = 0;
2789 infiles[n_infiles].name = 0;
2792 /* Process a spec string, accumulating and running commands. */
2794 /* These variables describe the input file name.
2795 input_file_number is the index on outfiles of this file,
2796 so that the output file name can be stored for later use by %o.
2797 input_basename is the start of the part of the input file
2798 sans all directory names, and basename_length is the number
2799 of characters starting there excluding the suffix .c or whatever. */
2801 static char *input_filename;
2802 static int input_file_number;
2803 static int input_filename_length;
2804 static int basename_length;
2805 static char *input_basename;
2806 static char *input_suffix;
2808 /* These are variables used within do_spec and do_spec_1. */
2810 /* Nonzero if an arg has been started and not yet terminated
2811 (with space, tab or newline). */
2812 static int arg_going;
2814 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2815 is a temporary file name. */
2816 static int delete_this_arg;
2818 /* Nonzero means %w has been seen; the next arg to be terminated
2819 is the output file name of this compilation. */
2820 static int this_is_output_file;
2822 /* Nonzero means %s has been seen; the next arg to be terminated
2823 is the name of a library file and we should try the standard
2824 search dirs for it. */
2825 static int this_is_library_file;
2827 /* Nonzero means that the input of this command is coming from a pipe. */
2828 static int input_from_pipe;
2830 /* Process the spec SPEC and run the commands specified therein.
2831 Returns 0 if the spec is successfully processed; -1 if failed. */
2841 delete_this_arg = 0;
2842 this_is_output_file = 0;
2843 this_is_library_file = 0;
2844 input_from_pipe = 0;
2846 value = do_spec_1 (spec, 0, NULL_PTR);
2848 /* Force out any unfinished command.
2849 If -pipe, this forces out the last command if it ended in `|'. */
2852 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2855 if (argbuf_index > 0)
2862 /* Process the sub-spec SPEC as a portion of a larger spec.
2863 This is like processing a whole spec except that we do
2864 not initialize at the beginning and we do not supply a
2865 newline by default at the end.
2866 INSWITCH nonzero means don't process %-sequences in SPEC;
2867 in this case, % is treated as an ordinary character.
2868 This is used while substituting switches.
2869 INSWITCH nonzero also causes SPC not to terminate an argument.
2871 Value is zero unless a line was finished
2872 and the command on that line reported an error. */
2875 do_spec_1 (spec, inswitch, soft_matched_part)
2878 char *soft_matched_part;
2880 register char *p = spec;
2887 /* If substituting a switch, treat all chars like letters.
2888 Otherwise, NL, SPC, TAB and % are special. */
2889 switch (inswitch ? 'a' : c)
2892 /* End of line: finish any pending argument,
2893 then run the pending command if one has been started. */
2896 obstack_1grow (&obstack, 0);
2897 string = obstack_finish (&obstack);
2898 if (this_is_library_file)
2899 string = find_file (string);
2900 store_arg (string, delete_this_arg, this_is_output_file);
2901 if (this_is_output_file)
2902 outfiles[input_file_number] = string;
2906 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2908 for (i = 0; i < n_switches; i++)
2909 if (!strcmp (switches[i].part1, "pipe"))
2912 /* A `|' before the newline means use a pipe here,
2913 but only if -pipe was specified.
2914 Otherwise, execute now and don't pass the `|' as an arg. */
2917 input_from_pipe = 1;
2918 switches[i].valid = 1;
2925 if (argbuf_index > 0)
2931 /* Reinitialize for a new command, and for a new argument. */
2934 delete_this_arg = 0;
2935 this_is_output_file = 0;
2936 this_is_library_file = 0;
2937 input_from_pipe = 0;
2941 /* End any pending argument. */
2944 obstack_1grow (&obstack, 0);
2945 string = obstack_finish (&obstack);
2946 if (this_is_library_file)
2947 string = find_file (string);
2948 store_arg (string, delete_this_arg, this_is_output_file);
2949 if (this_is_output_file)
2950 outfiles[input_file_number] = string;
2954 obstack_1grow (&obstack, c);
2960 /* Space or tab ends an argument if one is pending. */
2963 obstack_1grow (&obstack, 0);
2964 string = obstack_finish (&obstack);
2965 if (this_is_library_file)
2966 string = find_file (string);
2967 store_arg (string, delete_this_arg, this_is_output_file);
2968 if (this_is_output_file)
2969 outfiles[input_file_number] = string;
2971 /* Reinitialize for a new argument. */
2973 delete_this_arg = 0;
2974 this_is_output_file = 0;
2975 this_is_library_file = 0;
2982 fatal ("Invalid specification! Bug in cc.");
2985 obstack_grow (&obstack, input_basename, basename_length);
2990 delete_this_arg = 2;
2993 /* Dump out the directories specified with LIBRARY_PATH,
2994 followed by the absolute directories
2995 that we search for startfiles. */
2998 struct prefix_list *pl = startfile_prefixes.plist;
3000 char *buffer = (char *) xmalloc (bufsize);
3003 for (; pl; pl = pl->next)
3005 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3006 /* Used on systems which record the specified -L dirs
3007 and use them to search for dynamic linking. */
3008 /* Relative directories always come from -B,
3009 and it is better not to use them for searching
3010 at run time. In particular, stage1 loses */
3011 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3014 /* Try subdirectory if there is one. */
3015 if (multilib_dir != NULL)
3019 if (strlen (pl->prefix) + strlen (machine_suffix)
3021 bufsize = (strlen (pl->prefix)
3022 + strlen (machine_suffix)) * 2 + 1;
3023 buffer = (char *) xrealloc (buffer, bufsize);
3024 strcpy (buffer, pl->prefix);
3025 strcat (buffer, machine_suffix);
3026 if (is_directory (buffer, multilib_dir, 1))
3028 do_spec_1 ("-L", 0, NULL_PTR);
3029 #ifdef SPACE_AFTER_L_OPTION
3030 do_spec_1 (" ", 0, NULL_PTR);
3032 do_spec_1 (buffer, 1, NULL_PTR);
3033 do_spec_1 (multilib_dir, 1, NULL_PTR);
3034 /* Make this a separate argument. */
3035 do_spec_1 (" ", 0, NULL_PTR);
3038 if (!pl->require_machine_suffix)
3040 if (is_directory (pl->prefix, multilib_dir, 1))
3042 do_spec_1 ("-L", 0, NULL_PTR);
3043 #ifdef SPACE_AFTER_L_OPTION
3044 do_spec_1 (" ", 0, NULL_PTR);
3046 do_spec_1 (pl->prefix, 1, NULL_PTR);
3047 do_spec_1 (multilib_dir, 1, NULL_PTR);
3048 /* Make this a separate argument. */
3049 do_spec_1 (" ", 0, NULL_PTR);
3055 if (is_directory (pl->prefix, machine_suffix, 1))
3057 do_spec_1 ("-L", 0, NULL_PTR);
3058 #ifdef SPACE_AFTER_L_OPTION
3059 do_spec_1 (" ", 0, NULL_PTR);
3061 do_spec_1 (pl->prefix, 1, NULL_PTR);
3062 /* Remove slash from machine_suffix. */
3063 if (strlen (machine_suffix) >= bufsize)
3064 bufsize = strlen (machine_suffix) * 2 + 1;
3065 buffer = (char *) xrealloc (buffer, bufsize);
3066 strcpy (buffer, machine_suffix);
3067 idx = strlen (buffer);
3068 if (buffer[idx - 1] == '/'
3069 || buffer[idx - 1] == DIR_SEPARATOR)
3070 buffer[idx - 1] = 0;
3071 do_spec_1 (buffer, 1, NULL_PTR);
3072 /* Make this a separate argument. */
3073 do_spec_1 (" ", 0, NULL_PTR);
3076 if (!pl->require_machine_suffix)
3078 if (is_directory (pl->prefix, "", 1))
3080 do_spec_1 ("-L", 0, NULL_PTR);
3081 #ifdef SPACE_AFTER_L_OPTION
3082 do_spec_1 (" ", 0, NULL_PTR);
3084 /* Remove slash from pl->prefix. */
3085 if (strlen (pl->prefix) >= bufsize)
3086 bufsize = strlen (pl->prefix) * 2 + 1;
3087 buffer = (char *) xrealloc (buffer, bufsize);
3088 strcpy (buffer, pl->prefix);
3089 idx = strlen (buffer);
3090 if (buffer[idx - 1] == '/'
3091 || buffer[idx - 1] == DIR_SEPARATOR)
3092 buffer[idx - 1] = 0;
3093 do_spec_1 (buffer, 1, NULL_PTR);
3094 /* Make this a separate argument. */
3095 do_spec_1 (" ", 0, NULL_PTR);
3104 /* {...:%efoo} means report an error with `foo' as error message
3105 and don't execute any more commands for this file. */
3109 while (*p != 0 && *p != '\n') p++;
3110 buf = (char *) alloca (p - q + 1);
3111 strncpy (buf, q, p - q);
3121 if (save_temps_flag)
3123 obstack_grow (&obstack, input_basename, basename_length);
3124 delete_this_arg = 0;
3128 #ifdef MKTEMP_EACH_FILE
3129 /* ??? This has a problem: the total number of
3130 values mktemp can return is limited.
3131 That matters for the names of object files.
3132 In 2.4, do something about that. */
3133 struct temp_name *t;
3135 while (*p == '.' || isalpha (*p)
3136 || (p[0] == '%' && p[1] == 'O'))
3139 /* See if we already have an association of %g/%u/%U and
3141 for (t = temp_names; t; t = t->next)
3142 if (t->length == p - suffix
3143 && strncmp (t->suffix, suffix, p - suffix) == 0
3144 && t->unique == (c != 'g'))
3147 /* Make a new association if needed. %u requires one. */
3148 if (t == 0 || c == 'u')
3152 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3153 t->next = temp_names;
3156 t->length = p - suffix;
3157 t->suffix = save_string (suffix, p - suffix);
3158 t->unique = (c != 'g');
3159 temp_filename = choose_temp_base ();
3160 temp_filename_length = strlen (temp_filename);
3161 t->filename = temp_filename;
3162 t->filename_length = temp_filename_length;
3165 obstack_grow (&obstack, t->filename, t->filename_length);
3166 delete_this_arg = 1;
3168 obstack_grow (&obstack, temp_filename, temp_filename_length);
3169 if (c == 'u' || c == 'U')
3175 sprintf (buff, "%d", unique);
3176 obstack_grow (&obstack, buff, strlen (buff));
3179 delete_this_arg = 1;
3185 obstack_grow (&obstack, input_filename, input_filename_length);
3191 struct prefix_list *pl = include_prefixes.plist;
3193 if (gcc_exec_prefix)
3195 do_spec_1 ("-iprefix", 1, NULL_PTR);
3196 /* Make this a separate argument. */
3197 do_spec_1 (" ", 0, NULL_PTR);
3198 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3199 do_spec_1 (" ", 0, NULL_PTR);
3202 for (; pl; pl = pl->next)
3204 do_spec_1 ("-isystem", 1, NULL_PTR);
3205 /* Make this a separate argument. */
3206 do_spec_1 (" ", 0, NULL_PTR);
3207 do_spec_1 (pl->prefix, 1, NULL_PTR);
3208 do_spec_1 (" ", 0, NULL_PTR);
3214 for (i = 0; i < n_infiles; i++)
3215 store_arg (outfiles[i], 0, 0);
3219 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3224 this_is_library_file = 1;
3228 this_is_output_file = 1;
3233 int cur_index = argbuf_index;
3234 /* Handle the {...} following the %W. */
3237 p = handle_braces (p + 1);
3240 /* If any args were output, mark the last one for deletion
3242 if (argbuf_index != cur_index)
3243 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3247 /* %x{OPTION} records OPTION for %X to output. */
3253 /* Skip past the option value and make a copy. */
3258 string = save_string (p1 + 1, p - p1 - 2);
3260 /* See if we already recorded this option. */
3261 for (i = 0; i < n_linker_options; i++)
3262 if (! strcmp (string, linker_options[i]))
3268 /* This option is new; add it. */
3270 if (!linker_options)
3272 = (char **) xmalloc (n_linker_options * sizeof (char **));
3275 = (char **) xrealloc (linker_options,
3276 n_linker_options * sizeof (char **));
3278 linker_options[n_linker_options - 1] = string;
3282 /* Dump out the options accumulated previously using %x. */
3284 for (i = 0; i < n_linker_options; i++)
3286 do_spec_1 (linker_options[i], 1, NULL_PTR);
3287 /* Make each accumulated option a separate argument. */
3288 do_spec_1 (" ", 0, NULL_PTR);
3292 /* Dump out the options accumulated previously using -Wa,. */
3294 for (i = 0; i < n_assembler_options; i++)
3296 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3297 /* Make each accumulated option a separate argument. */
3298 do_spec_1 (" ", 0, NULL_PTR);
3302 /* Dump out the options accumulated previously using -Wp,. */
3304 for (i = 0; i < n_preprocessor_options; i++)
3306 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3307 /* Make each accumulated option a separate argument. */
3308 do_spec_1 (" ", 0, NULL_PTR);
3312 /* Here are digits and numbers that just process
3313 a certain constant string as a spec. */
3316 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3322 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3328 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3334 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3340 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3346 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3352 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3358 value = do_spec_1 (link_spec, 0, NULL_PTR);
3364 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3370 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3377 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3381 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3385 if (! strncmp (y, "-D", 2))
3386 /* Copy the whole option. */
3387 while (*y && *y != ' ' && *y != '\t')
3389 else if (*y == ' ' || *y == '\t')
3390 /* Copy whitespace to the result. */
3392 /* Don't copy other options. */
3399 value = do_spec_1 (buf, 0, NULL_PTR);
3407 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3411 /* Copy all of CPP_PREDEFINES into BUF,
3412 but put __ after every -D and at the end of each arg. */
3416 if (! strncmp (y, "-D", 2))
3424 || (*(y+1) != '_' && ! isupper (*(y+1))))
3426 /* Stick __ at front of macro name. */
3429 /* Arrange to stick __ at the end as well. */
3433 /* Copy the macro name. */
3434 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3443 /* Copy the value given, if any. */
3444 while (*y && *y != ' ' && *y != '\t')
3447 else if (*y == ' ' || *y == '\t')
3448 /* Copy whitespace to the result. */
3450 /* Don't copy -A options */
3456 /* Copy all of CPP_PREDEFINES into BUF,
3457 but put __ after every -D. */
3461 if (! strncmp (y, "-D", 2))
3466 || (*(y+1) != '_' && ! isupper (*(y+1))))
3468 /* Stick -D__ at front of macro name. */
3474 /* Copy the macro name. */
3475 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3478 /* Copy the value given, if any. */
3479 while (*y && *y != ' ' && *y != '\t')
3484 /* Do not copy this macro - we have just done it before */
3485 while (*y && *y != ' ' && *y != '\t')
3489 else if (*y == ' ' || *y == '\t')
3490 /* Copy whitespace to the result. */
3492 /* Don't copy -A options */
3498 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3502 if (! strncmp (y, "-A", 2))
3503 /* Copy the whole option. */
3504 while (*y && *y != ' ' && *y != '\t')
3506 else if (*y == ' ' || *y == '\t')
3507 /* Copy whitespace to the result. */
3509 /* Don't copy other options. */
3516 value = do_spec_1 (buf, 0, NULL_PTR);
3523 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3528 /* Here we define characters other than letters and digits. */
3531 p = handle_braces (p);
3537 obstack_1grow (&obstack, '%');
3541 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3542 do_spec_1 (" ", 0, NULL_PTR);
3545 /* Process a string found as the value of a spec given by name.
3546 This feature allows individual machine descriptions
3547 to add and use their own specs.
3548 %[...] modifies -D options the way %P does;
3549 %(...) uses the spec unmodified. */
3554 struct spec_list *sl;
3557 /* The string after the S/P is the name of a spec that is to be
3559 while (*p && *p != ')' && *p != ']')
3562 /* See if it's in the list */
3563 for (len = p - name, sl = specs; sl; sl = sl->next)
3564 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3574 value = do_spec_1 (name, 0, NULL_PTR);
3580 char *x = (char *) alloca (strlen (name) * 2 + 1);
3584 /* Copy all of NAME into BUF, but put __ after
3585 every -D and at the end of each arg, */
3590 if (! strncmp (y, "-D", 2))
3600 else if (flag && (*y == ' ' || *y == '\t' || *y == '='
3601 || *y == '}' || *y == 0))
3614 value = do_spec_1 (buf, 0, NULL_PTR);
3620 /* Discard the closing paren or bracket. */
3628 int c1 = *p++; /* Select first or second version number. */
3629 char *v = compiler_version;
3632 /* The format of the version string is
3633 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3635 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3636 while (! isdigit (*v))
3638 if (v > compiler_version && v[-1] != '-')
3641 /* If desired, advance to second version number. */
3644 /* Set V after the first period. */
3645 while (isdigit (*v))
3652 /* Set Q at the next period or at the end. */
3654 while (isdigit (*q))
3656 if (*q != 0 && *q != ' ' && *q != '.' && *q != '-')
3659 /* Put that part into the command. */
3660 obstack_grow (&obstack, v, q - v);
3666 if (input_from_pipe)
3667 do_spec_1 ("-", 0, NULL_PTR);
3676 /* Backslash: treat next character as ordinary. */
3681 /* Ordinary character: put it into the current argument. */
3682 obstack_1grow (&obstack, c);
3686 return 0; /* End of string */
3689 /* Return 0 if we call do_spec_1 and that returns -1. */
3702 /* A `|' after the open-brace means,
3703 if the test fails, output a single minus sign rather than nothing.
3704 This is used in %{|!pipe:...}. */
3708 /* A `!' after the open-brace negates the condition:
3709 succeed if the specified switch is not present. */
3713 /* A `.' after the open-brace means test against the current suffix. */
3723 while (*p != ':' && *p != '}') p++;
3726 register int count = 1;
3744 int found = (input_suffix != 0
3745 && strlen (input_suffix) == p - filter
3746 && strncmp (input_suffix, filter, p - filter) == 0);
3752 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3757 else if (p[-1] == '*' && p[0] == '}')
3759 /* Substitute all matching switches as separate args. */
3762 for (i = 0; i < n_switches; i++)
3763 if (!strncmp (switches[i].part1, filter, p - filter)
3764 && check_live_switch (i, p - filter))
3769 /* Test for presence of the specified switch. */
3773 /* If name specified ends in *, as in {x*:...},
3774 check for %* and handle that case. */
3775 if (p[-1] == '*' && !negate)
3780 /* First see whether we have %*. */
3784 if (*r == '%' && r[1] == '*')
3788 /* If we do, handle that case. */
3791 /* Substitute all matching switches as separate args.
3792 But do this by substituting for %*
3793 in the text that follows the colon. */
3795 unsigned hard_match_len = p - filter - 1;
3796 char *string = save_string (p + 1, q - p - 2);
3798 for (i = 0; i < n_switches; i++)
3799 if (!strncmp (switches[i].part1, filter, hard_match_len)
3800 && check_live_switch (i, -1))
3802 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3803 /* Pass any arguments this switch has. */
3811 /* If name specified ends in *, as in {x*:...},
3812 check for presence of any switch name starting with x. */
3815 for (i = 0; i < n_switches; i++)
3817 unsigned hard_match_len = p - filter - 1;
3819 if (!strncmp (switches[i].part1, filter, hard_match_len)
3820 && check_live_switch (i, hard_match_len))
3826 /* Otherwise, check for presence of exact name specified. */
3829 for (i = 0; i < n_switches; i++)
3831 if (!strncmp (switches[i].part1, filter, p - filter)
3832 && switches[i].part1[p - filter] == 0
3833 && check_live_switch (i, -1))
3841 /* If it is as desired (present for %{s...}, absent for %{-s...})
3842 then substitute either the switch or the specified
3843 conditional text. */
3844 if (present != negate)
3852 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3858 /* Here if a %{|...} conditional fails: output a minus sign,
3859 which means "standard output" or "standard input". */
3860 do_spec_1 ("-", 0, NULL_PTR);
3867 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
3868 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
3869 spec, or -1 if either exact match or %* is used.
3871 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
3872 whose value does not begin with "no-" is obsoleted by the same value
3873 with the "no-", similarly for a switch with the "no-" prefix. */
3876 check_live_switch (switchnum, prefix_length)
3880 char *name = switches[switchnum].part1;
3883 /* In the common case of {<at-most-one-letter>*}, a negating
3884 switch would always match, so ignore that case. We will just
3885 send the conflicting switches to the compiler phase. */
3886 if (prefix_length >= 0 && prefix_length <= 1)
3889 /* If we already processed this switch and determined if it was
3890 live or not, return our past determination. */
3891 if (switches[switchnum].live_cond != 0)
3892 return switches[switchnum].live_cond > 0;
3894 /* Now search for duplicate in a manner that depends on the name. */
3898 for (i = switchnum + 1; i < n_switches; i++)
3899 if (switches[i].part1[0] == 'O')
3901 switches[switchnum].valid = 1;
3902 switches[switchnum].live_cond = -1;
3907 case 'W': case 'f': case 'm':
3908 if (! strncmp (name + 1, "no-", 3))
3910 /* We have Xno-YYY, search for XYYY. */
3911 for (i = switchnum + 1; i < n_switches; i++)
3912 if (switches[i].part1[0] == name[0]
3913 && ! strcmp (&switches[i].part1[1], &name[4]))
3915 switches[switchnum].valid = 1;
3916 switches[switchnum].live_cond = -1;
3922 /* We have XYYY, search for Xno-YYY. */
3923 for (i = switchnum + 1; i < n_switches; i++)
3924 if (switches[i].part1[0] == name[0]
3925 && switches[i].part1[1] == 'n'
3926 && switches[i].part1[2] == 'o'
3927 && switches[i].part1[3] == '-'
3928 && !strcmp (&switches[i].part1[4], &name[1]))
3930 switches[switchnum].valid = 1;
3931 switches[switchnum].live_cond = -1;
3938 /* Otherwise the switch is live. */
3939 switches[switchnum].live_cond = 1;
3943 /* Pass a switch to the current accumulating command
3944 in the same form that we received it.
3945 SWITCHNUM identifies the switch; it is an index into
3946 the vector of switches gcc received, which is `switches'.
3947 This cannot fail since it never finishes a command line.
3949 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
3952 give_switch (switchnum, omit_first_word)
3954 int omit_first_word;
3956 if (!omit_first_word)
3958 do_spec_1 ("-", 0, NULL_PTR);
3959 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
3961 do_spec_1 (" ", 0, NULL_PTR);
3962 if (switches[switchnum].args != 0)
3965 for (p = switches[switchnum].args; *p; p++)
3967 do_spec_1 (*p, 1, NULL_PTR);
3968 do_spec_1 (" ", 0, NULL_PTR);
3971 switches[switchnum].valid = 1;
3974 /* Search for a file named NAME trying various prefixes including the
3975 user's -B prefix and some standard ones.
3976 Return the absolute file name found. If nothing is found, return NAME. */
3984 /* Try multilib_dir if it is defined. */
3985 if (multilib_dir != NULL)
3989 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
3990 strcpy (try, multilib_dir);
3991 strcat (try, dir_separator_str);
3994 newname = find_a_file (&startfile_prefixes, try, R_OK);
3996 /* If we don't find it in the multi library dir, then fall
3997 through and look for it in the normal places. */
3998 if (newname != NULL)
4002 newname = find_a_file (&startfile_prefixes, name, R_OK);
4003 return newname ? newname : name;
4006 /* Determine whether a directory exists. If LINKER, return 0 for
4007 certain fixed names not needed by the linker. If not LINKER, it is
4008 only important to return 0 if the host machine has a small ARG_MAX
4012 is_directory (path1, path2, linker)
4017 int len1 = strlen (path1);
4018 int len2 = strlen (path2);
4019 char *path = (char *) alloca (3 + len1 + len2);
4023 #ifndef SMALL_ARG_MAX
4028 /* Construct the path from the two parts. Ensure the string ends with "/.".
4029 The resulting path will be a directory even if the given path is a
4031 bcopy (path1, path, len1);
4032 bcopy (path2, path + len1, len2);
4033 cp = path + len1 + len2;
4034 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4035 *cp++ = DIR_SEPARATOR;
4039 /* Exclude directories that the linker is known to search. */
4042 && strcmp (path, concat (dir_separator_str, "lib",
4043 dir_separator_str, ".", NULL_PTR)) == 0)
4045 && strcmp (path, concat (dir_separator_str, "usr",
4046 dir_separator_str, "lib",
4047 dir_separator_str, ".", NULL_PTR)) == 0)))
4050 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4053 /* On fatal signals, delete all the temporary files. */
4056 fatal_error (signum)
4059 signal (signum, SIG_DFL);
4060 delete_failure_queue ();
4061 delete_temp_files ();
4062 /* Get the same signal again, this time not handled,
4063 so its normal effect occurs. */
4064 kill (getpid (), signum);
4075 int linker_was_run = 0;
4076 char *explicit_link_files;
4080 p = argv[0] + strlen (argv[0]);
4081 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4084 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4085 signal (SIGINT, fatal_error);
4087 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4088 signal (SIGHUP, fatal_error);
4090 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4091 signal (SIGTERM, fatal_error);
4093 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4094 signal (SIGPIPE, fatal_error);
4098 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4100 obstack_init (&obstack);
4102 /* Build multilib_select, et. al from the separate lines that make up each
4103 multilib selection. */
4105 char **q = multilib_raw;
4108 obstack_init (&multilib_obstack);
4109 while ((p = *q++) != (char *) 0)
4110 obstack_grow (&multilib_obstack, p, strlen (p));
4112 obstack_1grow (&multilib_obstack, 0);
4113 multilib_select = obstack_finish (&multilib_obstack);
4115 q = multilib_matches_raw;
4116 while ((p = *q++) != (char *) 0)
4117 obstack_grow (&multilib_obstack, p, strlen (p));
4119 obstack_1grow (&multilib_obstack, 0);
4120 multilib_matches = obstack_finish (&multilib_obstack);
4124 i < sizeof (multilib_defaults_raw) / sizeof (multilib_defaults_raw[0]);
4128 obstack_1grow (&multilib_obstack, ' ');
4129 obstack_grow (&multilib_obstack,
4130 multilib_defaults_raw[i],
4131 strlen (multilib_defaults_raw[i]));
4135 obstack_1grow (&multilib_obstack, 0);
4136 multilib_defaults = obstack_finish (&multilib_obstack);
4139 /* Set up to remember the pathname of gcc and any options
4140 needed for collect. We use argv[0] instead of programname because
4141 we need the complete pathname. */
4142 obstack_init (&collect_obstack);
4143 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4144 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4145 putenv (obstack_finish (&collect_obstack));
4147 #ifdef INIT_ENVIRONMENT
4148 /* Set up any other necessary machine specific environment variables. */
4149 putenv (INIT_ENVIRONMENT);
4152 /* Choose directory for temp files. */
4154 temp_filename = choose_temp_base ();
4155 temp_filename_length = strlen (temp_filename);
4157 /* Make a table of what switches there are (switches, n_switches).
4158 Make a table of specified input files (infiles, n_infiles).
4159 Decode switches that are handled locally. */
4161 process_command (argc, argv);
4163 /* Initialize the vector of specs to just the default.
4164 This means one element containing 0s, as a terminator. */
4166 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4167 bcopy ((char *) default_compilers, (char *) compilers,
4168 sizeof default_compilers);
4169 n_compilers = n_default_compilers;
4171 /* Read specs from a file if there is one. */
4173 machine_suffix = concat (spec_machine, dir_separator_str,
4174 spec_version, dir_separator_str, NULL_PTR);
4175 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
4177 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4178 /* Read the specs file unless it is a default one. */
4179 if (specs_file != 0 && strcmp (specs_file, "specs"))
4180 read_specs (specs_file);
4186 for (k = 0; k < sizeof (extra_specs) / sizeof (extra_specs[0]); k++)
4187 set_spec (extra_specs[k].name, extra_specs[k].spec);
4191 /* If not cross-compiling, look for startfiles in the standard places. */
4192 /* The fact that these are done here, after reading the specs file,
4193 means that it cannot be found in these directories.
4194 But that's okay. It should never be there anyway. */
4197 #ifdef MD_EXEC_PREFIX
4198 add_prefix (&exec_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4199 add_prefix (&startfile_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4202 #ifdef MD_STARTFILE_PREFIX
4203 add_prefix (&startfile_prefixes, md_startfile_prefix, 0, 0, NULL_PTR);
4206 #ifdef MD_STARTFILE_PREFIX_1
4207 add_prefix (&startfile_prefixes, md_startfile_prefix_1, 0, 0, NULL_PTR);
4210 /* If standard_startfile_prefix is relative, base it on
4211 standard_exec_prefix. This lets us move the installed tree
4212 as a unit. If GCC_EXEC_PREFIX is defined, base
4213 standard_startfile_prefix on that as well. */
4214 if (*standard_startfile_prefix == '/'
4215 || *standard_startfile_prefix == DIR_SEPARATOR)
4216 add_prefix (&startfile_prefixes, standard_startfile_prefix, 0, 0,
4220 if (gcc_exec_prefix)
4221 add_prefix (&startfile_prefixes,
4222 concat (gcc_exec_prefix, machine_suffix,
4223 standard_startfile_prefix, NULL_PTR),
4225 add_prefix (&startfile_prefixes,
4226 concat (standard_exec_prefix,
4228 standard_startfile_prefix, NULL_PTR),
4232 add_prefix (&startfile_prefixes, standard_startfile_prefix_1, 0, 0,
4234 add_prefix (&startfile_prefixes, standard_startfile_prefix_2, 0, 0,
4236 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4237 add_prefix (&startfile_prefixes, "./", 0, 1, NULL_PTR);
4242 if (*standard_startfile_prefix != DIR_SEPARATOR && gcc_exec_prefix)
4243 add_prefix (&startfile_prefixes,
4244 concat (gcc_exec_prefix, machine_suffix,
4245 standard_startfile_prefix, NULL_PTR),
4249 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4250 if (gcc_exec_prefix)
4252 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
4253 + strlen (spec_version)
4254 + strlen (spec_machine) + 3);
4255 strcpy (temp, gcc_exec_prefix);
4256 strcat (temp, spec_machine);
4257 strcat (temp, dir_separator_str);
4258 strcat (temp, spec_version);
4259 strcat (temp, dir_separator_str);
4260 gcc_exec_prefix = temp;
4263 /* Now we have the specs.
4264 Set the `valid' bits for switches that match anything in any spec. */
4266 validate_all_switches ();
4268 /* Now that we have the switches and the specs, set
4269 the subdirectory based on the options. */
4270 set_multilib_dir ();
4272 /* Warn about any switches that no pass was interested in. */
4274 for (i = 0; i < n_switches; i++)
4275 if (! switches[i].valid)
4276 error ("unrecognized option `-%s'", switches[i].part1);
4278 /* Obey some of the options. */
4280 if (print_search_dirs)
4282 printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
4283 printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
4284 printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
4288 if (print_file_name)
4290 printf ("%s\n", find_file (print_file_name));
4294 if (print_prog_name)
4296 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4297 printf ("%s\n", (newname ? newname : print_prog_name));
4301 if (print_multi_lib)
4303 print_multilib_info ();
4307 if (print_multi_directory)
4309 if (multilib_dir == NULL)
4312 printf ("%s\n", multilib_dir);
4318 if (! strcmp (version_string, compiler_version))
4319 fprintf (stderr, "gcc version %s\n", version_string);
4321 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4322 version_string, compiler_version);
4329 fatal ("No input files");
4331 /* Make a place to record the compiler output file names
4332 that correspond to the input files. */
4334 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4335 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4337 /* Record which files were specified explicitly as link input. */
4339 explicit_link_files = xmalloc (n_infiles);
4340 bzero (explicit_link_files, n_infiles);
4342 for (i = 0; i < n_infiles; i++)
4344 register struct compiler *cp = 0;
4345 int this_file_error = 0;
4347 /* Tell do_spec what to substitute for %i. */
4349 input_filename = infiles[i].name;
4350 input_filename_length = strlen (input_filename);
4351 input_file_number = i;
4353 /* Use the same thing in %o, unless cp->spec says otherwise. */
4355 outfiles[i] = input_filename;
4357 /* Figure out which compiler from the file's suffix. */
4359 cp = lookup_compiler (infiles[i].name, input_filename_length,
4360 infiles[i].language);
4364 /* Ok, we found an applicable compiler. Run its spec. */
4365 /* First say how much of input_filename to substitute for %b */
4369 if (cp->spec[0][0] == '#')
4370 error ("%s: %s compiler not installed on this system",
4371 input_filename, &cp->spec[0][1]);
4373 input_basename = input_filename;
4374 for (p = input_filename; *p; p++)
4375 if (*p == '/' || *p == DIR_SEPARATOR)
4376 input_basename = p + 1;
4378 /* Find a suffix starting with the last period,
4379 and set basename_length to exclude that suffix. */
4380 basename_length = strlen (input_basename);
4381 p = input_basename + basename_length;
4382 while (p != input_basename && *p != '.') --p;
4383 if (*p == '.' && p != input_basename)
4385 basename_length = p - input_basename;
4386 input_suffix = p + 1;
4392 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4394 len += strlen (cp->spec[j]);
4396 p = (char *) xmalloc (len + 1);
4399 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4402 strcpy (p + len, cp->spec[j]);
4403 len += strlen (cp->spec[j]);
4406 value = do_spec (p);
4409 this_file_error = 1;
4412 /* If this file's name does not contain a recognized suffix,
4413 record it as explicit linker input. */
4416 explicit_link_files[i] = 1;
4418 /* Clear the delete-on-failure queue, deleting the files in it
4419 if this compilation failed. */
4421 if (this_file_error)
4423 delete_failure_queue ();
4426 /* If this compilation succeeded, don't delete those files later. */
4427 clear_failure_queue ();
4430 /* Run ld to link all the compiler output files. */
4432 if (error_count == 0)
4434 int tmp = execution_count;
4438 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4440 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
4441 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
4443 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4445 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4446 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4449 for (i = 0; i < n_switches; i++)
4453 obstack_grow (&collect_obstack, " ", 1);
4456 obstack_grow (&collect_obstack, "-", 1);
4457 obstack_grow (&collect_obstack, switches[i].part1,
4458 strlen (switches[i].part1));
4460 for (args = switches[i].args; args && *args; args++)
4462 obstack_grow (&collect_obstack, " ", 1);
4463 obstack_grow (&collect_obstack, *args, strlen (*args));
4466 obstack_grow (&collect_obstack, "\0", 1);
4467 putenv (obstack_finish (&collect_obstack));
4469 value = do_spec (link_command_spec);
4472 linker_was_run = (tmp != execution_count);
4475 /* Warn if a -B option was specified but the prefix was never used. */
4476 unused_prefix_warnings (&exec_prefixes);
4477 unused_prefix_warnings (&startfile_prefixes);
4479 /* If options said don't run linker,
4480 complain about input files to be given to the linker. */
4482 if (! linker_was_run && error_count == 0)
4483 for (i = 0; i < n_infiles; i++)
4484 if (explicit_link_files[i])
4485 error ("%s: linker input file unused since linking not done",
4488 /* Delete some or all of the temporary files we made. */
4491 delete_failure_queue ();
4492 delete_temp_files ();
4494 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4499 /* Find the proper compilation spec for the file name NAME,
4500 whose length is LENGTH. LANGUAGE is the specified language,
4501 or 0 if none specified. */
4503 static struct compiler *
4504 lookup_compiler (name, length, language)
4509 struct compiler *cp;
4511 /* Look for the language, if one is spec'd. */
4514 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4518 if (cp->suffix[0] == '@'
4519 && !strcmp (cp->suffix + 1, language))
4523 error ("language %s not recognized", language);
4526 /* Look for a suffix. */
4527 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4529 if (/* The suffix `-' matches only the file name `-'. */
4530 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4532 (strlen (cp->suffix) < length
4533 /* See if the suffix matches the end of NAME. */
4535 && (!strcmp (cp->suffix,
4536 name + length - strlen (cp->suffix))
4537 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4538 && !strcasecmp (cp->suffix,
4539 name + length - strlen (cp->suffix)))))
4541 && !strcmp (cp->suffix,
4542 name + length - strlen (cp->suffix))))
4545 if (cp->spec[0][0] == '@')
4547 struct compiler *new;
4548 /* An alias entry maps a suffix to a language.
4549 Search for the language; pass 0 for NAME and LENGTH
4550 to avoid infinite recursion if language not found.
4551 Construct the new compiler spec. */
4552 language = cp->spec[0] + 1;
4553 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4554 new->suffix = cp->suffix;
4555 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4556 (char *) new->spec, sizeof new->spec);
4559 /* A non-alias entry: return it. */
4571 register char *value = (char *) malloc (size);
4573 fatal ("virtual memory exhausted");
4578 xrealloc (ptr, size)
4582 register char *value = (char *) realloc (ptr, size);
4584 fatal ("virtual memory exhausted");
4588 /* This function is based on the one in libiberty. */
4591 concat VPROTO((char *first, ...))
4593 register int length;
4594 register char *newstr;
4602 /* First compute the size of the result and get sufficient memory. */
4604 VA_START (args, first);
4606 first = va_arg (args, char *);
4614 length += strlen (arg);
4615 arg = va_arg (args, char *);
4618 newstr = (char *) xmalloc (length + 1);
4621 /* Now copy the individual pieces to the result string. */
4623 VA_START (args, first);
4625 first = va_arg (args, char *);
4634 arg = va_arg (args, char *);
4643 save_string (s, len)
4647 register char *result = xmalloc (len + 1);
4649 bcopy (s, result, len);
4655 pfatal_with_name (name)
4658 fatal ("%s: %s", name, my_strerror (errno));
4662 perror_with_name (name)
4665 error ("%s: %s", name, my_strerror (errno));
4669 pfatal_pexecute (errmsg_fmt, errmsg_arg)
4675 /* Space for trailing '\0' is in %s. */
4676 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
4677 sprintf (msg, errmsg_fmt, errmsg_arg);
4681 fatal ("%s: %s", errmsg_fmt, my_strerror (errno));
4684 /* More 'friendly' abort that prints the line and file.
4685 config.h can #define abort fancy_abort if you like that sort of thing. */
4690 fatal ("Internal gcc abort.");
4695 /* Output an error message and exit */
4698 fatal VPROTO((char *format, ...))
4705 VA_START (ap, format);
4708 format = va_arg (ap, char *);
4711 fprintf (stderr, "%s: ", programname);
4712 vfprintf (stderr, format, ap);
4714 fprintf (stderr, "\n");
4715 delete_temp_files ();
4720 error VPROTO((char *format, ...))
4727 VA_START (ap, format);
4730 format = va_arg (ap, char *);
4733 fprintf (stderr, "%s: ", programname);
4734 vfprintf (stderr, format, ap);
4737 fprintf (stderr, "\n");
4740 #else /* not HAVE_VPRINTF */
4743 fatal (msg, arg1, arg2)
4744 char *msg, *arg1, *arg2;
4746 error (msg, arg1, arg2);
4747 delete_temp_files ();
4752 error (msg, arg1, arg2)
4753 char *msg, *arg1, *arg2;
4755 fprintf (stderr, "%s: ", programname);
4756 fprintf (stderr, msg, arg1, arg2);
4757 fprintf (stderr, "\n");
4760 #endif /* not HAVE_VPRINTF */
4764 validate_all_switches ()
4766 struct compiler *comp;
4769 struct spec_list *spec;
4771 for (comp = compilers; comp->spec[0]; comp++)
4774 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4778 if (c == '%' && *p == '{')
4779 /* We have a switch spec. */
4780 validate_switches (p + 1);
4784 /* look through the linked list of extra specs read from the specs file */
4785 for (spec = specs; spec ; spec = spec->next)
4789 if (c == '%' && *p == '{')
4790 /* We have a switch spec. */
4791 validate_switches (p + 1);
4794 p = link_command_spec;
4796 if (c == '%' && *p == '{')
4797 /* We have a switch spec. */
4798 validate_switches (p + 1);
4800 /* Now notice switches mentioned in the machine-specific specs. */
4804 if (c == '%' && *p == '{')
4805 /* We have a switch spec. */
4806 validate_switches (p + 1);
4810 if (c == '%' && *p == '{')
4811 /* We have a switch spec. */
4812 validate_switches (p + 1);
4816 if (c == '%' && *p == '{')
4817 /* We have a switch spec. */
4818 validate_switches (p + 1);
4820 p = signed_char_spec;
4822 if (c == '%' && *p == '{')
4823 /* We have a switch spec. */
4824 validate_switches (p + 1);
4828 if (c == '%' && *p == '{')
4829 /* We have a switch spec. */
4830 validate_switches (p + 1);
4834 if (c == '%' && *p == '{')
4835 /* We have a switch spec. */
4836 validate_switches (p + 1);
4840 if (c == '%' && *p == '{')
4841 /* We have a switch spec. */
4842 validate_switches (p + 1);
4846 if (c == '%' && *p == '{')
4847 /* We have a switch spec. */
4848 validate_switches (p + 1);
4852 if (c == '%' && *p == '{')
4853 /* We have a switch spec. */
4854 validate_switches (p + 1);
4858 if (c == '%' && *p == '{')
4859 /* We have a switch spec. */
4860 validate_switches (p + 1);
4865 for (i = 0; i < sizeof (extra_specs) / sizeof (extra_specs[0]); i++)
4867 p = extra_specs[i].spec;
4869 if (c == '%' && *p == '{')
4870 /* We have a switch spec. */
4871 validate_switches (p + 1);
4878 /* Look at the switch-name that comes after START
4879 and mark as valid all supplied switches that match it. */
4882 validate_switches (start)
4885 register char *p = start;
4900 while (*p != ':' && *p != '}') p++;
4904 else if (p[-1] == '*')
4906 /* Mark all matching switches as valid. */
4908 for (i = 0; i < n_switches; i++)
4909 if (!strncmp (switches[i].part1, filter, p - filter))
4910 switches[i].valid = 1;
4914 /* Mark an exact matching switch as valid. */
4915 for (i = 0; i < n_switches; i++)
4917 if (!strncmp (switches[i].part1, filter, p - filter)
4918 && switches[i].part1[p - filter] == 0)
4919 switches[i].valid = 1;
4924 /* Check whether a particular argument was used. The first time we
4925 canonialize the switches to keep only the ones we care about. */
4939 static struct mswitchstr *mswitches;
4940 static int n_mswitches;
4945 struct mswitchstr *matches;
4949 /* Break multilib_matches into the component strings of string and replacement
4951 for (q = multilib_matches; *q != '\0'; q++)
4955 matches = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
4957 q = multilib_matches;
4968 matches[i].len = q - matches[i].str;
4970 matches[i].replace = ++q;
4971 while (*q != ';' && *q != '\0')
4977 matches[i].rep_len = q - matches[i].replace;
4985 /* Now build a list of the replacement string for switches that we care
4986 about. Make sure we allocate at least one entry. This prevents
4987 xmalloc from calling fatal, and prevents us from re-executing this
4990 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
4991 * (n_switches ? n_switches : 1));
4992 for (i = 0; i < n_switches; i++)
4994 int xlen = strlen (switches[i].part1);
4995 for (j = 0; j < cnt; j++)
4996 if (xlen == matches[j].len && ! strcmp (switches[i].part1, matches[j].str))
4998 mswitches[n_mswitches].str = matches[j].replace;
4999 mswitches[n_mswitches].len = matches[j].rep_len;
5000 mswitches[n_mswitches].replace = (char *)0;
5001 mswitches[n_mswitches].rep_len = 0;
5008 for (i = 0; i < n_mswitches; i++)
5009 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
5016 default_arg (p, len)
5023 for (start = multilib_defaults; *start != '\0'; start = end+1)
5025 while (*start == ' ' || *start == '\t')
5031 for (end = start+1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
5034 if ((end - start) == len && strncmp (p, start, len) == 0)
5041 /* Work out the subdirectory to use based on the
5042 options. The format of multilib_select is a list of elements.
5043 Each element is a subdirectory name followed by a list of options
5044 followed by a semicolon. gcc will consider each line in turn. If
5045 none of the options beginning with an exclamation point are
5046 present, and all of the other options are present, that
5047 subdirectory will be used. */
5052 char *p = multilib_select;
5054 char *this_path, *this_arg;
5060 /* Ignore newlines. */
5067 /* Get the initial path. */
5075 this_path_len = p - this_path;
5077 /* Check the arguments. */
5092 while (*p != ' ' && *p != ';')
5099 if (*this_arg != '!')
5107 /* If this is a default argument, we can just ignore it.
5108 This is true even if this_arg begins with '!'. Beginning
5109 with '!' does not mean that this argument is necessarily
5110 inappropriate for this library: it merely means that
5111 there is a more specific library which uses this
5112 argument. If this argument is a default, we need not
5113 consider that more specific library. */
5114 if (! default_arg (this_arg, p - this_arg))
5116 ok = used_arg (this_arg, p - this_arg);
5127 if (this_path_len != 1
5128 || this_path[0] != '.')
5130 multilib_dir = xmalloc (this_path_len + 1);
5131 strncpy (multilib_dir, this_path, this_path_len);
5132 multilib_dir[this_path_len] = '\0';
5141 /* Print out the multiple library subdirectory selection
5142 information. This prints out a series of lines. Each line looks
5143 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5144 required. Only the desired options are printed out, the negative
5145 matches. The options are print without a leading dash. There are
5146 no spaces to make it easy to use the information in the shell.
5147 Each subdirectory is printed only once. This assumes the ordering
5148 generated by the genmultilib script. */
5151 print_multilib_info ()
5153 char *p = multilib_select;
5154 char *last_path = 0, *this_path;
5156 int last_path_len = 0;
5160 /* Ignore newlines. */
5167 /* Get the initial path. */
5176 /* If this is a duplicate, skip it. */
5177 skip = (last_path != 0 && p - this_path == last_path_len
5178 && ! strncmp (last_path, this_path, last_path_len));
5180 last_path = this_path;
5181 last_path_len = p - this_path;
5183 /* If this directory requires any default arguments, we can skip
5184 it. We will already have printed a directory identical to
5185 this one which does not require that default argument. */
5203 while (*q != ' ' && *q != ';')
5211 && default_arg (arg, q - arg))
5226 for (p1 = last_path; p1 < p; p1++)
5245 use_arg = *p != '!';
5250 while (*p != ' ' && *p != ';')
5265 /* If there are extra options, print them now */
5266 if (multilib_extra && *multilib_extra)
5268 int print_at = TRUE;
5271 for (q = multilib_extra; *q != '\0'; q++)