1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994 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, 675 Mass Ave, Cambridge, MA 02139, USA.
20 This paragraph is here to try to keep Sun CC from dying.
21 The number of chars here seems crucial!!!! */
23 /* This program is the user interface to the C compiler and possibly to
24 other compilers. It is used because compilation is a complicated procedure
25 which involves running several programs and passing temporary files between
26 them, forwarding the users switches to those programs selectively,
27 and deleting the temporary files at the end.
29 CC recognizes how to compile each input file by suffixes in the file names.
30 Once it knows which kind of compilation to perform, the procedure for
31 compilation is specified by a string called a "spec". */
33 #include <sys/types.h>
37 #include <sys/file.h> /* May get R_OK, etc. on some systems. */
49 /* Include multi-lib information. */
58 /* Add prototype support. */
60 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
61 #define PROTO(ARGS) ARGS
63 #define PROTO(ARGS) ()
69 #define PVPROTO(ARGS) ARGS
70 #define VPROTO(ARGS) ARGS
71 #define VA_START(va_list,var) va_start(va_list,var)
73 #define PVPROTO(ARGS) ()
74 #define VPROTO(ARGS) (va_alist) va_dcl
75 #define VA_START(va_list,var) va_start(va_list)
79 /* Define a generic NULL if one hasn't already been defined. */
86 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
87 #define GENERIC_PTR void *
89 #define GENERIC_PTR char *
94 #define NULL_PTR ((GENERIC_PTR)0)
101 /* On MSDOS, write temp files in current dir
102 because there's no place else we can expect to use. */
109 /* Test if something is a normal file. */
111 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
114 /* Test if something is a directory. */
116 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
119 /* By default there is no special suffix for executables. */
120 #ifndef EXECUTABLE_SUFFIX
121 #define EXECUTABLE_SUFFIX ""
124 /* By default, colon separates directories in a path. */
125 #ifndef PATH_SEPARATOR
126 #define PATH_SEPARATOR ':'
129 #define obstack_chunk_alloc xmalloc
130 #define obstack_chunk_free free
133 extern char *getenv ();
140 #if defined(bsd4_4) || defined(__NetBSD__)
141 extern const char *const sys_errlist[];
143 extern char *sys_errlist[];
146 extern int execv (), execvp ();
148 /* If a stage of compilation returns an exit status >= 1,
149 compilation of that file ceases. */
151 #define MIN_FATAL_STATUS 1
153 /* Flag saying to print the full filename of this file
154 as found through our usual search mechanism. */
156 static char *print_file_name = NULL;
158 /* As print_file_name, but search for executable file. */
160 static char *print_prog_name = NULL;
162 /* Flag saying to print the relative path we'd use to
163 find libgcc.a given the current compiler flags. */
165 static int print_multi_directory;
167 /* Flag saying to print the list of subdirectories and
168 compiler flags used to select them in a standard form. */
170 static int print_multi_lib;
172 /* Flag indicating whether we should print the command and arguments */
174 static int verbose_flag;
176 /* Nonzero means write "temp" files in source directory
177 and use the source file's name in them, and don't delete them. */
179 static int save_temps_flag;
181 /* The compiler version. */
183 static char *compiler_version;
185 /* The target version specified with -V */
187 static char *spec_version = DEFAULT_TARGET_VERSION;
189 /* The target machine specified with -b. */
191 static char *spec_machine = DEFAULT_TARGET_MACHINE;
193 /* Nonzero if cross-compiling.
194 When -b is used, the value comes from the `specs' file. */
197 static int cross_compile = 1;
199 static int cross_compile = 0;
202 /* The number of errors that have occurred; the link phase will not be
203 run if this is non-zero. */
204 static int error_count = 0;
206 /* This is the obstack which we use to allocate many strings. */
208 static struct obstack obstack;
210 /* This is the obstack to build an environment variable to pass to
211 collect2 that describes all of the relevant switches of what to
212 pass the compiler in building the list of pointers to constructors
215 static struct obstack collect_obstack;
217 extern char *version_string;
219 /* Forward declaration for prototypes. */
222 static void set_spec PROTO((char *, char *));
223 static struct compiler *lookup_compiler PROTO((char *, int, char *));
224 static char *find_a_file PROTO((struct path_prefix *, char *, int));
225 static void add_prefix PROTO((struct path_prefix *, char *, int, int, int *));
226 static char *skip_whitespace PROTO((char *));
227 static void record_temp_file PROTO((char *, int, int));
228 static void delete_if_ordinary PROTO((char *));
229 static void delete_temp_files PROTO((void));
230 static void delete_failure_queue PROTO((void));
231 static void clear_failure_queue PROTO((void));
232 static char *choose_temp_base_try PROTO((char *, char *));
233 static void choose_temp_base PROTO((void));
234 static int check_live_switch PROTO((int, int));
235 static char *handle_braces PROTO((char *));
236 static char *save_string PROTO((char *, int));
237 static char *concat PROTO((char *, char *, char *));
238 static int do_spec PROTO((char *));
239 static int do_spec_1 PROTO((char *, int, char *));
240 static char *find_file PROTO((char *));
241 static int is_directory PROTO((char *, char *, int));
242 static void validate_switches PROTO((char *));
243 static void validate_all_switches PROTO((void));
244 static void give_switch PROTO((int, int));
245 static int used_arg PROTO((char *, int));
246 static void set_multilib_dir PROTO((void));
247 static void print_multilib_info PROTO((void));
248 static void pfatal_with_name PROTO((char *));
249 static void perror_with_name PROTO((char *));
250 static void perror_exec PROTO((char *));
252 static void fatal PVPROTO((char *, ...));
253 static void error PVPROTO((char *, ...));
255 /* We must not provide any prototype here, even if ANSI C. */
256 static void fatal PROTO(());
257 static void error PROTO(());
264 /* Specs are strings containing lines, each of which (if not blank)
265 is made up of a program name, and arguments separated by spaces.
266 The program name must be exact and start from root, since no path
267 is searched and it is unreliable to depend on the current working directory.
268 Redirection of input or output is not supported; the subprograms must
269 accept filenames saying what files to read and write.
271 In addition, the specs can contain %-sequences to substitute variable text
272 or for conditional text. Here is a table of all defined %-sequences.
273 Note that spaces are not generated automatically around the results of
274 expanding these sequences; therefore, you can concatenate them together
275 or with constant text in a single argument.
277 %% substitute one % into the program name or argument.
278 %i substitute the name of the input file being processed.
279 %b substitute the basename of the input file being processed.
280 This is the substring up to (and not including) the last period
281 and not including the directory.
282 %g substitute the temporary-file-name-base. This is a string chosen
283 once per compilation. Different temporary file names are made by
284 concatenation of constant strings on the end, as in `%g.s'.
285 %g also has the same effect of %d.
286 %u like %g, but make the temporary file name unique.
287 %U returns the last file name generated with %u.
288 %d marks the argument containing or following the %d as a
289 temporary file name, so that that file will be deleted if CC exits
290 successfully. Unlike %g, this contributes no text to the argument.
291 %w marks the argument containing or following the %w as the
292 "output file" of this compilation. This puts the argument
293 into the sequence of arguments that %o will substitute later.
295 like %{...} but mark last argument supplied within
296 as a file to be deleted on failure.
297 %o substitutes the names of all the output files, with spaces
298 automatically placed around them. You should write spaces
299 around the %o as well or the results are undefined.
300 %o is for use in the specs for running the linker.
301 Input files whose names have no recognized suffix are not compiled
302 at all, but they are included among the output files, so they will
304 %p substitutes the standard macro predefinitions for the
305 current target machine. Use this when running cpp.
306 %P like %p, but puts `__' before and after the name of each macro.
307 (Except macros that already have __.)
309 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
310 %s current argument is the name of a library or startup file of some sort.
311 Search for that file in a standard list of directories
312 and substitute the full name found.
313 %eSTR Print STR as an error message. STR is terminated by a newline.
314 Use this when inconsistent options are detected.
315 %x{OPTION} Accumulate an option for %X.
316 %X Output the accumulated linker options specified by compilations.
317 %Y Output the accumulated assembler options specified by compilations.
318 %v1 Substitute the major version number of GCC.
319 (For version 2.5.n, this is 2.)
320 %v2 Substitute the minor version number of GCC.
321 (For version 2.5.n, this is 5.)
322 %a process ASM_SPEC as a spec.
323 This allows config.h to specify part of the spec for running as.
324 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
325 used here. This can be used to run a post-processor after the
326 assembler has done it's job.
327 %D Dump out a -L option for each directory in startfile_prefix.
328 If multilib_dir is set, extra entries are generated with it affixed.
329 %l process LINK_SPEC as a spec.
330 %L process LIB_SPEC as a spec.
331 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
332 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
333 %c process SIGNED_CHAR_SPEC as a spec.
334 %C process CPP_SPEC as a spec. A capital C is actually used here.
335 %1 process CC1_SPEC as a spec.
336 %2 process CC1PLUS_SPEC as a spec.
337 %| output "-" if the input for the current command is coming from a pipe.
338 %* substitute the variable part of a matched option. (See below.)
339 Note that each comma in the substituted string is replaced by
341 %{S} substitutes the -S switch, if that switch was given to CC.
342 If that switch was not specified, this substitutes nothing.
343 Here S is a metasyntactic variable.
344 %{S*} substitutes all the switches specified to CC whose names start
345 with -S. This is used for -o, -D, -I, etc; switches that take
346 arguments. CC considers `-o foo' as being one switch whose
347 name starts with `o'. %{o*} would substitute this text,
348 including the space; thus, two arguments would be generated.
349 %{S*:X} substitutes X if one or more switches whose names start with -S are
350 specified to CC. Note that the tail part of the -S option
351 (i.e. the part matched by the `*') will be substituted for each
352 occurrence of %* within X.
353 %{S:X} substitutes X, but only if the -S switch was given to CC.
354 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
355 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
356 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
357 %{.S:X} substitutes X, but only if processing a file with suffix S.
358 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
359 %(Spec) processes a specification defined in a specs file as *Spec:
360 %[Spec] as above, but put __ around -D arguments
362 The conditional text X in a %{S:X} or %{!S:X} construct may contain
363 other nested % constructs or spaces, or even newlines. They are
364 processed as usual, as described above.
366 The -O, -f, -m, and -W switches are handled specifically in these
367 constructs. If another value of -O or the negated form of a -f, -m, or
368 -W switch is found later in the command line, the earlier switch
369 value is ignored, except with {S*} where S is just one letter; this
370 passes all matching options.
372 The character | is used to indicate that a command should be piped to
373 the following command, but only if -pipe is specified.
375 Note that it is built into CC which switches take arguments and which
376 do not. You might think it would be useful to generalize this to
377 allow each compiler's spec to say which switches take arguments. But
378 this cannot be done in a consistent fashion. CC cannot even decide
379 which input files have been specified without knowing which switches
380 take arguments, and it must know which input files to compile in order
381 to tell which compilers to run.
383 CC also knows implicitly that arguments starting in `-l' are to be
384 treated as compiler output files, and passed to the linker in their
385 proper position among the other output files. */
387 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
389 /* config.h can define ASM_SPEC to provide extra args to the assembler
390 or extra switch-translations. */
395 /* config.h can define ASM_FINAL_SPEC to run a post processor after
396 the assembler has run. */
397 #ifndef ASM_FINAL_SPEC
398 #define ASM_FINAL_SPEC ""
401 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
402 or extra switch-translations. */
407 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
408 or extra switch-translations. */
413 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
414 or extra switch-translations. */
416 #define CC1PLUS_SPEC ""
419 /* config.h can define LINK_SPEC to provide extra args to the linker
420 or extra switch-translations. */
425 /* config.h can define LIB_SPEC to override the default libraries. */
427 #define LIB_SPEC "%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
430 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
431 #ifndef STARTFILE_SPEC
432 #define STARTFILE_SPEC \
433 "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}"
436 /* config.h can define SWITCHES_NEED_SPACES to control passing -o and -L.
437 Make the string nonempty to require spaces there. */
438 #ifndef SWITCHES_NEED_SPACES
439 #define SWITCHES_NEED_SPACES ""
442 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
444 #define ENDFILE_SPEC ""
447 /* This spec is used for telling cpp whether char is signed or not. */
448 #ifndef SIGNED_CHAR_SPEC
449 /* Use #if rather than ?:
450 because MIPS C compiler rejects like ?: in initializers. */
451 #if DEFAULT_SIGNED_CHAR
452 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
454 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
458 /* MULTILIB_SELECT comes from multilib.h. It gives a
459 string interpreted by set_multilib_dir to select a library
460 subdirectory based on the compiler options. */
461 #ifndef MULTILIB_SELECT
462 #define MULTILIB_SELECT ". ;"
465 static char *cpp_spec = CPP_SPEC;
466 static char *cpp_predefines = CPP_PREDEFINES;
467 static char *cc1_spec = CC1_SPEC;
468 static char *cc1plus_spec = CC1PLUS_SPEC;
469 static char *signed_char_spec = SIGNED_CHAR_SPEC;
470 static char *asm_spec = ASM_SPEC;
471 static char *asm_final_spec = ASM_FINAL_SPEC;
472 static char *link_spec = LINK_SPEC;
473 static char *lib_spec = LIB_SPEC;
474 static char *endfile_spec = ENDFILE_SPEC;
475 static char *startfile_spec = STARTFILE_SPEC;
476 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
477 static char *multilib_select = MULTILIB_SELECT;
479 /* This defines which switch letters take arguments. */
481 #ifndef SWITCH_TAKES_ARG
482 #define SWITCH_TAKES_ARG(CHAR) \
483 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
484 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
485 || (CHAR) == 'I' || (CHAR) == 'm' \
486 || (CHAR) == 'L' || (CHAR) == 'A')
489 /* This defines which multi-letter switches take arguments. */
491 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
492 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
493 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
494 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
495 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
496 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
497 || !strcmp (STR, "isystem"))
499 #ifndef WORD_SWITCH_TAKES_ARG
500 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
503 /* Record the mapping from file suffixes for compilation specs. */
507 char *suffix; /* Use this compiler for input files
508 whose names end in this suffix. */
510 char *spec[4]; /* To use this compiler, concatenate these
511 specs and pass to do_spec. */
514 /* Pointer to a vector of `struct compiler' that gives the spec for
515 compiling a file, based on its suffix.
516 A file that does not end in any of these suffixes will be passed
517 unchanged to the loader and nothing else will be done to it.
519 An entry containing two 0s is used to terminate the vector.
521 If multiple entries match a file, the last matching one is used. */
523 static struct compiler *compilers;
525 /* Number of entries in `compilers', not counting the null terminator. */
527 static int n_compilers;
529 /* The default list of file name suffixes and their compilation specs. */
531 static struct compiler default_compilers[] =
535 "cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
536 %{C:%{!E:%eGNU C does not support -C without using -E}}\
537 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
538 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
539 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
540 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
541 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
542 %{traditional-cpp:-traditional}\
543 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
544 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
545 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
546 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a}\
547 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
548 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
550 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
551 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
552 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
553 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
554 %{!pipe:%g.s} %A\n }}}}"},
556 "%{E:cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
557 %{C:%{!E:%eGNU C does not support -C without using -E}}\
558 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
559 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
560 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
561 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
562 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
563 %{traditional-cpp:-traditional}\
564 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
566 %{!E:%e-E required when input is from standard input}"},
567 {".m", "@objective-c"},
569 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
570 %{C:%{!E:%eGNU C does not support -C without using -E}}\
571 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
572 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
573 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
574 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
575 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
576 %{traditional-cpp:-traditional}\
577 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
578 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
579 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
580 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a}\
581 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
582 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
583 -lang-objc %{gen-decls} \
585 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
586 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
587 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
588 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
589 %{!pipe:%g.s} %A\n }}}}"},
592 "%{!E:%eCompilation of header file requested} \
593 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
594 %{C:%{!E:%eGNU C does not support -C without using -E}}\
595 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
596 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
597 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
598 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
599 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
600 %{traditional-cpp:-traditional}\
601 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
608 "cpp -lang-c++ %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
609 %{C:%{!E:%eGNU C++ does not support -C without using -E}}\
610 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
611 -undef -D__GNUC__=%v1 -D__GNUG__=%v1 -D__cplusplus -D__GNUC_MINOR__=%v2\
612 %{ansi:-trigraphs -$ -D__STRICT_ANSI__} %{!undef:%{!ansi:%p} %P}\
613 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
614 %{traditional-cpp:-traditional} %{trigraphs}\
615 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
616 %i %{!M:%{!MM:%{!E:%{!pipe:%g.ii}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
617 "%{!M:%{!MM:%{!E:cc1plus %{!pipe:%g.ii} %1 %2\
618 %{!Q:-quiet} -dumpbase %b.cc %{d*} %{m*} %{a}\
619 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
620 %{traditional} %{v:-version} %{pg:-p} %{p}\
621 %{f*} %{+e*} %{aux-info*}\
622 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
623 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}}|\n\
624 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
625 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
626 %{!pipe:%g.s} %A\n }}}}"},
627 {".i", "@cpp-output"},
629 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
630 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
631 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
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\
635 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
636 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
637 %{!pipe:%g.s} %A\n }}}}"},
638 {".ii", "@c++-cpp-output"},
640 "%{!M:%{!MM:%{!E:cc1plus %i %1 %2 %{!Q:-quiet} %{d*} %{m*} %{a}\
641 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
642 %{traditional} %{v:-version} %{pg:-p} %{p}\
643 %{f*} %{+e*} %{aux-info*}\
644 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
645 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
646 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
647 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
648 %{!pipe:%g.s} %A\n }}}}"},
649 {".s", "@assembler"},
651 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
652 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
654 {".S", "@assembler-with-cpp"},
655 {"@assembler-with-cpp",
656 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
657 %{C:%{!E:%eGNU C does not support -C without using -E}}\
658 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
659 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
660 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
661 %{traditional-cpp:-traditional}\
662 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
663 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
664 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
665 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
666 %{!pipe:%g.s} %A\n }}}}"},
671 "%{!M:%{!MM:%{!E:gnat1 %{k8:-gnatk8} %{w:-gnatws} %{!Q:-quiet}\
672 -dumpbase %b.ada %{g*} %{O*} %{p} %{pg:-p} %{f*}\
674 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
675 %i %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
676 %{!S:%{!gnatc:%{!gnats:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
677 %{c:%W{o*}%{!o*:-o %w%b.o}}\
678 %{!c:-o %d%w%u.o} %{!pipe:%g.s} %A\n}}}}}} "},
679 /* Mark end of table */
683 /* Number of elements in default_compilers, not counting the terminator. */
685 static int n_default_compilers
686 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
688 /* Here is the spec for running the linker, after compiling all files. */
690 /* -u* was put back because both BSD and SysV seem to support it. */
691 /* %{static:} simply prevents an error message if the target machine
692 doesn't handle -static. */
693 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
694 scripts which exist in user specified directories, or in standard
696 #ifdef LINK_LIBGCC_SPECIAL_1
697 /* Have gcc do the search for libgcc.a, but generate -L options as usual. */
698 static char *link_command_spec = "\
700 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
701 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
702 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
703 %{L*} %D %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
705 #ifdef LINK_LIBGCC_SPECIAL
706 /* Have gcc do the search for libgcc.a, and don't generate -L options. */
707 static char *link_command_spec = "\
709 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
710 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
711 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
712 %{L*} %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
714 /* Use -L and have the linker do the search for -lgcc. */
715 static char *link_command_spec = "\
717 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
718 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
719 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
720 %{L*} %D %{T*} %o %{!nostdlib:-lgcc %L -lgcc %{!A:%E}}\n }}}}}}";
724 /* A vector of options to give to the linker.
725 These options are accumulated by -Xlinker and -Wl,
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 %X. */
733 static int n_assembler_options;
734 static char **assembler_options;
736 /* Define how to map long options into short ones. */
738 /* This structure describes one mapping. */
741 /* The long option's name. */
743 /* The equivalent short option. */
745 /* Argument info. A string of flag chars; NULL equals no options.
746 a => argument required.
747 o => argument optional.
748 j => join argument to equivalent, making one word.
749 * => allow other text after NAME as an argument. */
753 /* This is the table of mappings. Mappings are tried sequentially
754 for each option encountered; the first one that matches, wins. */
756 struct option_map option_map[] =
758 {"--profile-blocks", "-a", 0},
759 {"--target", "-b", "a"},
760 {"--compile", "-c", 0},
761 {"--dump", "-d", "a"},
762 {"--entry", "-e", 0},
763 {"--debug", "-g", "oj"},
764 {"--include", "-include", "a"},
765 {"--imacros", "-imacros", "a"},
766 {"--include-prefix", "-iprefix", "a"},
767 {"--include-directory-after", "-idirafter", "a"},
768 {"--include-with-prefix", "-iwithprefix", "a"},
769 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
770 {"--include-with-prefix-after", "-iwithprefix", "a"},
771 {"--machine-", "-m", "*j"},
772 {"--machine", "-m", "aj"},
773 {"--no-standard-includes", "-nostdinc", 0},
774 {"--no-standard-libraries", "-nostdlib", 0},
775 {"--no-precompiled-includes", "-noprecomp", 0},
776 {"--output", "-o", "a"},
777 {"--profile", "-p", 0},
778 {"--quiet", "-q", 0},
779 {"--silent", "-q", 0},
780 {"--force-link", "-u", "a"},
781 {"--verbose", "-v", 0},
782 {"--version", "-dumpversion", 0},
783 {"--no-warnings", "-w", 0},
784 {"--language", "-x", "a"},
786 {"--assert", "-A", "a"},
787 {"--prefix", "-B", "a"},
788 {"--comments", "-C", 0},
789 {"--define-macro", "-D", "a"},
790 {"--preprocess", "-E", 0},
791 {"--trace-includes", "-H", 0},
792 {"--include-directory", "-I", "a"},
793 {"--include-barrier", "-I-", 0},
794 {"--library-directory", "-L", "a"},
795 {"--dependencies", "-M", 0},
796 {"--user-dependencies", "-MM", 0},
797 {"--write-dependencies", "-MD", 0},
798 {"--write-user-dependencies", "-MMD", 0},
799 {"--print-missing-file-dependencies", "-MG", 0},
800 {"--optimize", "-O", "oj"},
801 {"--no-line-commands", "-P", 0},
802 {"--assemble", "-S", 0},
803 {"--undefine-macro", "-U", "a"},
804 {"--use-version", "-V", "a"},
805 {"--for-assembler", "-Wa", "a"},
806 {"--extra-warnings", "-W", 0},
807 {"--all-warnings", "-Wall", 0},
808 {"--warn-", "-W", "*j"},
809 {"--for-linker", "-Xlinker", "a"},
811 {"--ansi", "-ansi", 0},
812 {"--traditional", "-traditional", 0},
813 {"--traditional-cpp", "-traditional-cpp", 0},
814 {"--trigraphs", "-trigraphs", 0},
815 {"--pipe", "-pipe", 0},
816 {"--dumpbase", "-dumpbase", "a"},
817 {"--pedantic", "-pedantic", 0},
818 {"--pedantic-errors", "-pedantic-errors", 0},
819 {"--save-temps", "-save-temps", 0},
820 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
821 {"--print-file-name", "-print-file-name=", "aj"},
822 {"--print-prog-name", "-print-prog-name=", "aj"},
823 {"--print-multi-lib", "-print-multi-lib", 0},
824 {"--print-multi-directory", "-print-multi-directory", 0},
825 {"--static", "-static", 0},
826 {"--shared", "-shared", 0},
827 {"--symbolic", "-symbolic", 0},
831 /* Translate the options described by *ARGCP and *ARGVP.
832 Make a new vector and store it back in *ARGVP,
833 and store its length in *ARGVC. */
836 translate_options (argcp, argvp)
842 char **argv = *argvp;
843 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
847 newv[newindex++] = argv[i++];
851 /* Translate -- options. */
852 if (argv[i][0] == '-' && argv[i][1] == '-')
854 /* Find a mapping that applies to this option. */
855 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
857 int optlen = strlen (option_map[j].name);
858 int complen = strlen (argv[i]);
859 char *arginfo = option_map[j].arg_info;
863 if (complen > optlen)
865 if (!strncmp (argv[i], option_map[j].name, complen))
867 int extra = strlen (argv[i]) > optlen;
872 /* If the option has an argument, accept that. */
873 if (argv[i][optlen] == '=')
874 arg = argv[i] + optlen + 1;
875 /* If this mapping allows extra text at end of name,
876 accept that as "argument". */
877 else if (index (arginfo, '*') != 0)
878 arg = argv[i] + optlen;
879 /* Otherwise, extra text at end means mismatch.
880 Try other mappings. */
884 else if (index (arginfo, '*') != 0)
885 error ("Incomplete `%s' option", option_map[j].name);
887 /* Handle arguments. */
888 if (index (arginfo, 'o') != 0)
893 error ("Missing argument to `%s' option",
898 else if (index (arginfo, '*') != 0)
900 else if (index (arginfo, 'a') == 0)
903 error ("Extraneous argument to `%s' option",
908 /* Store the translation as one argv elt or as two. */
909 if (arg != 0 && index (arginfo, 'j') != 0)
910 newv[newindex++] = concat (option_map[j].equivalent,
914 newv[newindex++] = option_map[j].equivalent;
915 newv[newindex++] = arg;
918 newv[newindex++] = option_map[j].equivalent;
925 /* Handle old-fashioned options--just copy them through,
926 with their arguments. */
927 else if (argv[i][0] == '-')
929 char *p = argv[i] + 1;
933 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
934 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
935 else if (WORD_SWITCH_TAKES_ARG (p))
936 nskip += WORD_SWITCH_TAKES_ARG (p);
937 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
940 else if (! strcmp (p, "Xlinker"))
943 /* Watch out for an option at the end of the command line that
944 is missing arguments, and avoid skipping past the end of the
946 if (nskip + i > argc)
951 newv[newindex++] = argv[i++];
956 /* Ordinary operands, or +e options. */
957 newv[newindex++] = argv[i++];
966 /* Read compilation specs from a file named FILENAME,
967 replacing the default ones.
969 A suffix which starts with `*' is a definition for
970 one of the machine-specific sub-specs. The "suffix" should be
971 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
972 The corresponding spec is stored in asm_spec, etc.,
973 rather than in the `compilers' vector.
975 Anything invalid in the file is a fatal error. */
978 read_specs (filename)
987 fprintf (stderr, "Reading specs from %s\n", filename);
989 /* Open and stat the file. */
990 desc = open (filename, 0, 0);
992 pfatal_with_name (filename);
993 if (stat (filename, &statbuf) < 0)
994 pfatal_with_name (filename);
996 /* Read contents of file into BUFFER. */
997 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
998 read (desc, buffer, (unsigned) statbuf.st_size);
999 buffer[statbuf.st_size] = 0;
1002 /* Scan BUFFER for specs, putting them in the vector. */
1008 char *in, *out, *p1, *p2;
1010 /* Advance P in BUFFER to the next nonblank nocomment line. */
1011 p = skip_whitespace (p);
1015 /* Find the colon that should end the suffix. */
1017 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
1018 /* The colon shouldn't be missing. */
1020 fatal ("specs file malformed after %d characters", p1 - buffer);
1021 /* Skip back over trailing whitespace. */
1023 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
1024 /* Copy the suffix to a string. */
1025 suffix = save_string (p, p2 - p);
1026 /* Find the next line. */
1027 p = skip_whitespace (p1 + 1);
1029 fatal ("specs file malformed after %d characters", p - buffer);
1031 /* Find next blank line. */
1032 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
1033 /* Specs end at the blank line and do not include the newline. */
1034 spec = save_string (p, p1 - p);
1037 /* Delete backslash-newline sequences from the spec. */
1042 if (in[0] == '\\' && in[1] == '\n')
1044 else if (in[0] == '#')
1046 while (*in && *in != '\n') in++;
1053 if (suffix[0] == '*')
1055 if (! strcmp (suffix, "*link_command"))
1056 link_command_spec = spec;
1058 set_spec (suffix + 1, spec);
1062 /* Add this pair to the vector. */
1064 = ((struct compiler *)
1065 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1066 compilers[n_compilers].suffix = suffix;
1067 bzero ((char *) compilers[n_compilers].spec,
1068 sizeof compilers[n_compilers].spec);
1069 compilers[n_compilers].spec[0] = spec;
1071 bzero ((char *) &compilers[n_compilers],
1072 sizeof compilers[n_compilers]);
1076 link_command_spec = spec;
1079 if (link_command_spec == 0)
1080 fatal ("spec file has no spec for linking");
1089 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1090 be considered whitespace. */
1091 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1093 else if (*p == '\n' || *p == ' ' || *p == '\t')
1097 while (*p != '\n') p++;
1107 /* Structure to keep track of the specs that have been defined so far. These
1108 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1112 char *name; /* Name of the spec. */
1113 char *spec; /* The spec itself. */
1114 struct spec_list *next; /* Next spec in linked list. */
1117 /* List of specs that have been defined so far. */
1119 static struct spec_list *specs = (struct spec_list *) 0;
1121 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1122 removed; If the spec starts with a + then SPEC is added to the end of the
1126 set_spec (name, spec)
1130 struct spec_list *sl;
1133 /* See if the spec already exists */
1134 for (sl = specs; sl; sl = sl->next)
1135 if (strcmp (sl->name, name) == 0)
1140 /* Not found - make it */
1141 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1142 sl->name = save_string (name, strlen (name));
1143 sl->spec = save_string ("", 0);
1148 old_spec = sl->spec;
1149 if (name && spec[0] == '+' && isspace (spec[1]))
1150 sl->spec = concat (old_spec, spec + 1, "");
1152 sl->spec = save_string (spec, strlen (spec));
1154 if (! strcmp (name, "asm"))
1155 asm_spec = sl->spec;
1156 else if (! strcmp (name, "asm_final"))
1157 asm_final_spec = sl->spec;
1158 else if (! strcmp (name, "cc1"))
1159 cc1_spec = sl->spec;
1160 else if (! strcmp (name, "cc1plus"))
1161 cc1plus_spec = sl->spec;
1162 else if (! strcmp (name, "cpp"))
1163 cpp_spec = sl->spec;
1164 else if (! strcmp (name, "endfile"))
1165 endfile_spec = sl->spec;
1166 else if (! strcmp (name, "lib"))
1167 lib_spec = sl->spec;
1168 else if (! strcmp (name, "link"))
1169 link_spec = sl->spec;
1170 else if (! strcmp (name, "predefines"))
1171 cpp_predefines = sl->spec;
1172 else if (! strcmp (name, "signed_char"))
1173 signed_char_spec = sl->spec;
1174 else if (! strcmp (name, "startfile"))
1175 startfile_spec = sl->spec;
1176 else if (! strcmp (name, "switches_need_spaces"))
1177 switches_need_spaces = sl->spec;
1178 else if (! strcmp (name, "cross_compile"))
1179 cross_compile = atoi (sl->spec);
1180 else if (! strcmp (name, "multilib"))
1181 multilib_select = sl->spec;
1182 /* Free the old spec */
1187 /* Accumulate a command (program name and args), and run it. */
1189 /* Vector of pointers to arguments in the current line of specifications. */
1191 static char **argbuf;
1193 /* Number of elements allocated in argbuf. */
1195 static int argbuf_length;
1197 /* Number of elements in argbuf currently in use (containing args). */
1199 static int argbuf_index;
1201 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1202 temp file. Used only if MKTEMP_EACH_FILE. */
1204 static struct temp_name {
1205 char *suffix; /* suffix associated with the code. */
1206 int length; /* strlen (suffix). */
1207 int unique; /* Indicates whether %g or %u/%U was used. */
1208 char *filename; /* associated filename. */
1209 int filename_length; /* strlen (filename). */
1210 struct temp_name *next;
1213 /* Number of commands executed so far. */
1215 static int execution_count;
1217 /* Number of commands that exited with a signal. */
1219 static int signal_count;
1221 /* Name with which this program was invoked. */
1223 static char *programname;
1225 /* Structures to keep track of prefixes to try when looking for files. */
1229 char *prefix; /* String to prepend to the path. */
1230 struct prefix_list *next; /* Next in linked list. */
1231 int require_machine_suffix; /* Don't use without machine_suffix. */
1232 /* 2 means try both machine_suffix and just_machine_suffix. */
1233 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1238 struct prefix_list *plist; /* List of prefixes to try */
1239 int max_len; /* Max length of a prefix in PLIST */
1240 char *name; /* Name of this list (used in config stuff) */
1243 /* List of prefixes to try when looking for executables. */
1245 static struct path_prefix exec_prefix = { 0, 0, "exec" };
1247 /* List of prefixes to try when looking for startup (crt0) files. */
1249 static struct path_prefix startfile_prefix = { 0, 0, "startfile" };
1251 /* List of prefixes to try when looking for include files. */
1253 static struct path_prefix include_prefix = { 0, 0, "include" };
1255 /* Suffix to attach to directories searched for commands.
1256 This looks like `MACHINE/VERSION/'. */
1258 static char *machine_suffix = 0;
1260 /* Suffix to attach to directories searched for commands.
1261 This is just `MACHINE/'. */
1263 static char *just_machine_suffix = 0;
1265 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1267 static char *gcc_exec_prefix;
1269 /* Default prefixes to attach to command names. */
1271 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1272 #undef MD_EXEC_PREFIX
1273 #undef MD_STARTFILE_PREFIX
1274 #undef MD_STARTFILE_PREFIX_1
1277 #ifndef STANDARD_EXEC_PREFIX
1278 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1279 #endif /* !defined STANDARD_EXEC_PREFIX */
1281 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1282 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1283 #ifdef MD_EXEC_PREFIX
1284 static char *md_exec_prefix = MD_EXEC_PREFIX;
1287 #ifndef STANDARD_STARTFILE_PREFIX
1288 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1289 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1291 #ifdef MD_STARTFILE_PREFIX
1292 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1294 #ifdef MD_STARTFILE_PREFIX_1
1295 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1297 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1298 static char *standard_startfile_prefix_1 = "/lib/";
1299 static char *standard_startfile_prefix_2 = "/usr/lib/";
1301 #ifndef TOOLDIR_BASE_PREFIX
1302 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1304 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1305 static char *tooldir_prefix;
1307 /* Subdirectory to use for locating libraries. Set by
1308 set_multilib_dir based on the compilation options. */
1310 static char *multilib_dir;
1312 /* Clear out the vector of arguments (after a command is executed). */
1320 /* Add one argument to the vector at the end.
1321 This is done when a space is seen or at the end of the line.
1322 If DELETE_ALWAYS is nonzero, the arg is a filename
1323 and the file should be deleted eventually.
1324 If DELETE_FAILURE is nonzero, the arg is a filename
1325 and the file should be deleted if this compilation fails. */
1328 store_arg (arg, delete_always, delete_failure)
1330 int delete_always, delete_failure;
1332 if (argbuf_index + 1 == argbuf_length)
1334 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1337 argbuf[argbuf_index++] = arg;
1338 argbuf[argbuf_index] = 0;
1340 if (delete_always || delete_failure)
1341 record_temp_file (arg, delete_always, delete_failure);
1344 /* Record the names of temporary files we tell compilers to write,
1345 and delete them at the end of the run. */
1347 /* This is the common prefix we use to make temp file names.
1348 It is chosen once for each run of this program.
1349 It is substituted into a spec by %g.
1350 Thus, all temp file names contain this prefix.
1351 In practice, all temp file names start with this prefix.
1353 This prefix comes from the envvar TMPDIR if it is defined;
1354 otherwise, from the P_tmpdir macro if that is defined;
1355 otherwise, in /usr/tmp or /tmp. */
1357 static char *temp_filename;
1359 /* Length of the prefix. */
1361 static int temp_filename_length;
1363 /* Define the list of temporary files to delete. */
1368 struct temp_file *next;
1371 /* Queue of files to delete on success or failure of compilation. */
1372 static struct temp_file *always_delete_queue;
1373 /* Queue of files to delete on failure of compilation. */
1374 static struct temp_file *failure_delete_queue;
1376 /* Record FILENAME as a file to be deleted automatically.
1377 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1378 otherwise delete it in any case.
1379 FAIL_DELETE nonzero means delete it if a compilation step fails;
1380 otherwise delete it in any case. */
1383 record_temp_file (filename, always_delete, fail_delete)
1388 register char *name;
1389 name = xmalloc (strlen (filename) + 1);
1390 strcpy (name, filename);
1394 register struct temp_file *temp;
1395 for (temp = always_delete_queue; temp; temp = temp->next)
1396 if (! strcmp (name, temp->name))
1398 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1399 temp->next = always_delete_queue;
1401 always_delete_queue = temp;
1407 register struct temp_file *temp;
1408 for (temp = failure_delete_queue; temp; temp = temp->next)
1409 if (! strcmp (name, temp->name))
1411 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1412 temp->next = failure_delete_queue;
1414 failure_delete_queue = temp;
1419 /* Delete all the temporary files whose names we previously recorded. */
1422 delete_if_ordinary (name)
1429 printf ("Delete %s? (y or n) ", name);
1433 while ((c = getchar ()) != '\n' && c != EOF) ;
1434 if (i == 'y' || i == 'Y')
1436 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1437 if (unlink (name) < 0)
1439 perror_with_name (name);
1443 delete_temp_files ()
1445 register struct temp_file *temp;
1447 for (temp = always_delete_queue; temp; temp = temp->next)
1448 delete_if_ordinary (temp->name);
1449 always_delete_queue = 0;
1452 /* Delete all the files to be deleted on error. */
1455 delete_failure_queue ()
1457 register struct temp_file *temp;
1459 for (temp = failure_delete_queue; temp; temp = temp->next)
1460 delete_if_ordinary (temp->name);
1464 clear_failure_queue ()
1466 failure_delete_queue = 0;
1469 /* Compute a string to use as the base of all temporary file names.
1470 It is substituted for %g. */
1473 choose_temp_base_try (try, base)
1480 else if (try == (char *)0)
1482 else if (access (try, R_OK | W_OK) != 0)
1495 base = choose_temp_base_try (getenv ("TMPDIR"), base);
1496 base = choose_temp_base_try (getenv ("TMP"), base);
1497 base = choose_temp_base_try (getenv ("TEMP"), base);
1500 base = choose_temp_base_try (P_tmpdir, base);
1503 base = choose_temp_base_try ("/usr/tmp", base);
1504 base = choose_temp_base_try ("/tmp", base);
1506 /* If all else fails, use the current directory! */
1507 if (base == (char *)0)
1510 len = strlen (base);
1511 temp_filename = xmalloc (len + sizeof("/ccXXXXXX") + 1);
1512 strcpy (temp_filename, base);
1513 if (len > 0 && temp_filename[len-1] != '/')
1514 temp_filename[len++] = '/';
1515 strcpy (temp_filename + len, "ccXXXXXX");
1517 mktemp (temp_filename);
1518 temp_filename_length = strlen (temp_filename);
1519 if (temp_filename_length == 0)
1524 /* Routine to add variables to the environment. We do this to pass
1525 the pathname of the gcc driver, and the directories search to the
1526 collect2 program, which is being run as ld. This way, we can be
1527 sure of executing the right compiler when collect2 wants to build
1528 constructors and destructors. Since the environment variables we
1529 use come from an obstack, we don't have to worry about allocating
1538 #ifndef VMS /* nor about VMS */
1540 extern char **environ;
1541 char **old_environ = environ;
1545 int str_len = strlen (str);
1549 while ((ch = *p++) != '\0' && ch != '=')
1555 /* Search for replacing an existing environment variable, and
1556 count the number of total environment variables. */
1557 for (envp = old_environ; *envp; envp++)
1560 if (!strncmp (str, *envp, name_len))
1567 /* Add a new environment variable */
1568 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1570 bcopy ((char *) old_environ, (char *) (environ + 1),
1571 sizeof (char *) * (num_envs+1));
1576 #endif /* HAVE_PUTENV */
1579 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1582 putenv_from_prefixes (paths, env_var)
1583 struct path_prefix *paths;
1586 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1588 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1589 int first_time = TRUE;
1590 struct prefix_list *pprefix;
1592 obstack_grow (&collect_obstack, env_var, strlen (env_var));
1594 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1596 int len = strlen (pprefix->prefix);
1599 && is_directory (pprefix->prefix, machine_suffix, 0))
1602 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1605 obstack_grow (&collect_obstack, pprefix->prefix, len);
1606 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1609 if (just_machine_suffix
1610 && pprefix->require_machine_suffix == 2
1611 && is_directory (pprefix->prefix, just_machine_suffix, 0))
1614 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1617 obstack_grow (&collect_obstack, pprefix->prefix, len);
1618 obstack_grow (&collect_obstack, just_machine_suffix,
1622 if (!pprefix->require_machine_suffix)
1625 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1628 obstack_grow (&collect_obstack, pprefix->prefix, len);
1631 obstack_1grow (&collect_obstack, '\0');
1632 putenv (obstack_finish (&collect_obstack));
1636 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1637 access to check permissions.
1638 Return 0 if not found, otherwise return its name, allocated with malloc. */
1641 find_a_file (pprefix, name, mode)
1642 struct path_prefix *pprefix;
1647 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1648 struct prefix_list *pl;
1649 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1652 len += strlen (machine_suffix);
1654 temp = xmalloc (len);
1656 /* Determine the filename to execute (special case for absolute paths). */
1660 if (access (name, mode))
1662 strcpy (temp, name);
1667 for (pl = pprefix->plist; pl; pl = pl->next)
1671 /* Some systems have a suffix for executable files.
1672 So try appending that first. */
1673 if (file_suffix[0] != 0)
1675 strcpy (temp, pl->prefix);
1676 strcat (temp, machine_suffix);
1677 strcat (temp, name);
1678 strcat (temp, file_suffix);
1679 if (access (temp, mode) == 0)
1681 if (pl->used_flag_ptr != 0)
1682 *pl->used_flag_ptr = 1;
1687 /* Now try just the name. */
1688 strcpy (temp, pl->prefix);
1689 strcat (temp, machine_suffix);
1690 strcat (temp, name);
1691 if (access (temp, mode) == 0)
1693 if (pl->used_flag_ptr != 0)
1694 *pl->used_flag_ptr = 1;
1699 /* Certain prefixes are tried with just the machine type,
1700 not the version. This is used for finding as, ld, etc. */
1701 if (just_machine_suffix && pl->require_machine_suffix == 2)
1703 /* Some systems have a suffix for executable files.
1704 So try appending that first. */
1705 if (file_suffix[0] != 0)
1707 strcpy (temp, pl->prefix);
1708 strcat (temp, just_machine_suffix);
1709 strcat (temp, name);
1710 strcat (temp, file_suffix);
1711 if (access (temp, mode) == 0)
1713 if (pl->used_flag_ptr != 0)
1714 *pl->used_flag_ptr = 1;
1719 strcpy (temp, pl->prefix);
1720 strcat (temp, just_machine_suffix);
1721 strcat (temp, name);
1722 if (access (temp, mode) == 0)
1724 if (pl->used_flag_ptr != 0)
1725 *pl->used_flag_ptr = 1;
1730 /* Certain prefixes can't be used without the machine suffix
1731 when the machine or version is explicitly specified. */
1732 if (!pl->require_machine_suffix)
1734 /* Some systems have a suffix for executable files.
1735 So try appending that first. */
1736 if (file_suffix[0] != 0)
1738 strcpy (temp, pl->prefix);
1739 strcat (temp, name);
1740 strcat (temp, file_suffix);
1741 if (access (temp, mode) == 0)
1743 if (pl->used_flag_ptr != 0)
1744 *pl->used_flag_ptr = 1;
1749 strcpy (temp, pl->prefix);
1750 strcat (temp, name);
1751 if (access (temp, mode) == 0)
1753 if (pl->used_flag_ptr != 0)
1754 *pl->used_flag_ptr = 1;
1764 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1765 at the start of the list, otherwise it goes at the end.
1767 If WARN is nonzero, we will warn if no file is found
1768 through this prefix. WARN should point to an int
1769 which will be set to 1 if this entry is used.
1771 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1772 the complete value of machine_suffix.
1773 2 means try both machine_suffix and just_machine_suffix. */
1776 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1777 struct path_prefix *pprefix;
1780 int require_machine_suffix;
1783 struct prefix_list *pl, **prev;
1786 if (!first && pprefix->plist)
1788 for (pl = pprefix->plist; pl->next; pl = pl->next)
1793 prev = &pprefix->plist;
1795 /* Keep track of the longest prefix */
1797 len = strlen (prefix);
1798 if (len > pprefix->max_len)
1799 pprefix->max_len = len;
1801 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1802 pl->prefix = save_string (prefix, len);
1803 pl->require_machine_suffix = require_machine_suffix;
1804 pl->used_flag_ptr = warn;
1811 pl->next = (struct prefix_list *) 0;
1815 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1818 unused_prefix_warnings (pprefix)
1819 struct path_prefix *pprefix;
1821 struct prefix_list *pl = pprefix->plist;
1825 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1827 error ("file path prefix `%s' never used",
1829 /* Prevent duplicate warnings. */
1830 *pl->used_flag_ptr = 1;
1836 /* Get rid of all prefixes built up so far in *PLISTP. */
1839 free_path_prefix (pprefix)
1840 struct path_prefix *pprefix;
1842 struct prefix_list *pl = pprefix->plist;
1843 struct prefix_list *temp;
1849 free (temp->prefix);
1850 free ((char *) temp);
1852 pprefix->plist = (struct prefix_list *) 0;
1855 /* stdin file number. */
1856 #define STDIN_FILE_NO 0
1858 /* stdout file number. */
1859 #define STDOUT_FILE_NO 1
1861 /* value of `pipe': port index for reading. */
1864 /* value of `pipe': port index for writing. */
1865 #define WRITE_PORT 1
1867 /* Pipe waiting from last process, to be used as input for the next one.
1868 Value is STDIN_FILE_NO if no pipe is waiting
1869 (i.e. the next command is the first of a group). */
1871 static int last_pipe_input;
1873 /* Fork one piped subcommand. FUNC is the system call to use
1874 (either execv or execvp). ARGV is the arg vector to use.
1875 NOT_LAST is nonzero if this is not the last subcommand
1876 (i.e. its output should be piped to the next one.) */
1881 #include <process.h>
1883 pexecute (search_flag, program, argv, not_last)
1890 int i = (search_flag ? spawnv : spawnvp) (1, program, argv);
1894 int i, el = search_flag ? 0 : 4;
1896 scmd = (char *)malloc (strlen (program) + strlen (temp_filename) + 6 + el);
1897 rf = scmd + strlen(program) + 2 + el;
1898 sprintf (scmd, "%s%s @%s.gp", program,
1899 (search_flag ? "" : ".exe"), temp_filename);
1900 argfile = fopen (rf, "w");
1902 pfatal_with_name (rf);
1904 for (i=1; argv[i]; i++)
1907 for (cp = argv[i]; *cp; cp++)
1909 if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp))
1910 fputc ('\\', argfile);
1911 fputc (*cp, argfile);
1913 fputc ('\n', argfile);
1924 perror_exec (program);
1925 return MIN_FATAL_STATUS << 8;
1930 #else /* not __MSDOS__ */
1933 pexecute (search_flag, program, argv, not_last)
1939 int (*func)() = (search_flag ? execv : execvp);
1942 int input_desc = last_pipe_input;
1943 int output_desc = STDOUT_FILE_NO;
1944 int retries, sleep_interval;
1946 /* If this isn't the last process, make a pipe for its output,
1947 and record it as waiting to be the input to the next process. */
1951 if (pipe (pdes) < 0)
1952 pfatal_with_name ("pipe");
1953 output_desc = pdes[WRITE_PORT];
1954 last_pipe_input = pdes[READ_PORT];
1957 last_pipe_input = STDIN_FILE_NO;
1959 /* Fork a subprocess; wait and retry if it fails. */
1961 for (retries = 0; retries < 4; retries++)
1966 sleep (sleep_interval);
1967 sleep_interval *= 2;
1974 pfatal_with_name ("fork");
1976 pfatal_with_name ("vfork");
1982 /* Move the input and output pipes into place, if nec. */
1983 if (input_desc != STDIN_FILE_NO)
1985 close (STDIN_FILE_NO);
1989 if (output_desc != STDOUT_FILE_NO)
1991 close (STDOUT_FILE_NO);
1993 close (output_desc);
1996 /* Close the parent's descs that aren't wanted here. */
1997 if (last_pipe_input != STDIN_FILE_NO)
1998 close (last_pipe_input);
2000 /* Exec the program. */
2001 (*func) (program, argv);
2002 perror_exec (program);
2008 /* In the parent, after forking.
2009 Close the descriptors that we made for this child. */
2010 if (input_desc != STDIN_FILE_NO)
2012 if (output_desc != STDOUT_FILE_NO)
2013 close (output_desc);
2015 /* Return child's process number. */
2020 #endif /* not __MSDOS__ */
2024 pexecute (search_flag, program, argv, not_last)
2030 return (search_flag ? spawnv : spawnvp) (1, program, argv);
2032 #endif /* not OS2 */
2034 /* Execute the command specified by the arguments on the current line of spec.
2035 When using pipes, this includes several piped-together commands
2036 with `|' between them.
2038 Return 0 if successful, -1 if failed. */
2044 int n_commands; /* # of command. */
2048 char *prog; /* program name. */
2049 char **argv; /* vector of args. */
2050 int pid; /* pid of process for this command. */
2053 struct command *commands; /* each command buffer with above info. */
2055 /* Count # of piped commands. */
2056 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2057 if (strcmp (argbuf[i], "|") == 0)
2060 /* Get storage for each command. */
2062 = (struct command *) alloca (n_commands * sizeof (struct command));
2064 /* Split argbuf into its separate piped processes,
2065 and record info about each one.
2066 Also search for the programs that are to be run. */
2068 commands[0].prog = argbuf[0]; /* first command. */
2069 commands[0].argv = &argbuf[0];
2070 string = find_a_file (&exec_prefix, commands[0].prog, X_OK);
2072 commands[0].argv[0] = string;
2074 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2075 if (strcmp (argbuf[i], "|") == 0)
2076 { /* each command. */
2078 fatal ("-pipe not supported under MS-DOS");
2080 argbuf[i] = 0; /* termination of command args. */
2081 commands[n_commands].prog = argbuf[i + 1];
2082 commands[n_commands].argv = &argbuf[i + 1];
2083 string = find_a_file (&exec_prefix, commands[n_commands].prog, X_OK);
2085 commands[n_commands].argv[0] = string;
2089 argbuf[argbuf_index] = 0;
2091 /* If -v, print what we are about to do, and maybe query. */
2095 /* Print each piped command as a separate line. */
2096 for (i = 0; i < n_commands ; i++)
2100 for (j = commands[i].argv; *j; j++)
2101 fprintf (stderr, " %s", *j);
2103 /* Print a pipe symbol after all but the last command. */
2104 if (i + 1 != n_commands)
2105 fprintf (stderr, " |");
2106 fprintf (stderr, "\n");
2110 fprintf (stderr, "\nGo ahead? (y or n) ");
2114 while (getchar () != '\n') ;
2115 if (i != 'y' && i != 'Y')
2120 /* Run each piped subprocess. */
2122 last_pipe_input = STDIN_FILE_NO;
2123 for (i = 0; i < n_commands; i++)
2125 char *string = commands[i].argv[0];
2127 commands[i].pid = pexecute (string != commands[i].prog,
2128 string, commands[i].argv,
2129 i + 1 < n_commands);
2131 if (string != commands[i].prog)
2137 /* Wait for all the subprocesses to finish.
2138 We don't care what order they finish in;
2139 we know that N_COMMANDS waits will get them all. */
2144 for (i = 0; i < n_commands; i++)
2148 char *prog = "unknown";
2151 status = pid = commands[i].pid;
2153 pid = wait (&status);
2161 for (j = 0; j < n_commands; j++)
2162 if (commands[j].pid == pid)
2163 prog = commands[j].prog;
2165 if ((status & 0x7F) != 0)
2167 fatal ("Internal compiler error: program %s got fatal signal %d",
2168 prog, (status & 0x7F));
2171 if (((status & 0xFF00) >> 8) >= MIN_FATAL_STATUS)
2179 /* Find all the switches given to us
2180 and make a vector describing them.
2181 The elements of the vector are strings, one per switch given.
2182 If a switch uses following arguments, then the `part1' field
2183 is the switch itself and the `args' field
2184 is a null-terminated vector containing the following arguments.
2185 The `live_cond' field is 1 if the switch is true in a conditional spec,
2186 -1 if false (overridden by a later switch), and is initialized to zero.
2187 The `valid' field is nonzero if any spec has looked at this switch;
2188 if it remains zero at the end of the run, it must be meaningless. */
2198 static struct switchstr *switches;
2200 static int n_switches;
2208 /* Also a vector of input files specified. */
2210 static struct infile *infiles;
2212 static int n_infiles;
2214 /* And a vector of corresponding output files is made up later. */
2216 static char **outfiles;
2218 /* Create the vector `switches' and its contents.
2219 Store its length in `n_switches'. */
2222 process_command (argc, argv)
2228 char *spec_lang = 0;
2229 int last_language_n_infiles;
2231 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2236 /* Figure compiler version from version string. */
2238 compiler_version = save_string (version_string, strlen (version_string));
2239 for (temp = compiler_version; *temp; ++temp)
2248 /* Set up the default search paths. */
2250 if (gcc_exec_prefix)
2252 add_prefix (&exec_prefix, gcc_exec_prefix, 0, 0, NULL_PTR);
2253 add_prefix (&startfile_prefix, gcc_exec_prefix, 0, 0, NULL_PTR);
2256 /* COMPILER_PATH and LIBRARY_PATH have values
2257 that are lists of directory names with colons. */
2259 temp = getenv ("COMPILER_PATH");
2262 char *startp, *endp;
2263 char *nstore = (char *) alloca (strlen (temp) + 3);
2265 startp = endp = temp;
2268 if (*endp == PATH_SEPARATOR || *endp == 0)
2270 strncpy (nstore, startp, endp-startp);
2273 strcpy (nstore, "./");
2275 else if (endp[-1] != '/')
2277 nstore[endp-startp] = '/';
2278 nstore[endp-startp+1] = 0;
2281 nstore[endp-startp] = 0;
2282 add_prefix (&exec_prefix, nstore, 0, 0, NULL_PTR);
2285 endp = startp = endp + 1;
2292 temp = getenv ("LIBRARY_PATH");
2295 char *startp, *endp;
2296 char *nstore = (char *) alloca (strlen (temp) + 3);
2298 startp = endp = temp;
2301 if (*endp == PATH_SEPARATOR || *endp == 0)
2303 strncpy (nstore, startp, endp-startp);
2306 strcpy (nstore, "./");
2308 else if (endp[-1] != '/')
2310 nstore[endp-startp] = '/';
2311 nstore[endp-startp+1] = 0;
2314 nstore[endp-startp] = 0;
2315 add_prefix (&startfile_prefix, nstore, 0, 0, NULL_PTR);
2318 endp = startp = endp + 1;
2325 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2326 temp = getenv ("LPATH");
2329 char *startp, *endp;
2330 char *nstore = (char *) alloca (strlen (temp) + 3);
2332 startp = endp = temp;
2335 if (*endp == PATH_SEPARATOR || *endp == 0)
2337 strncpy (nstore, startp, endp-startp);
2340 strcpy (nstore, "./");
2342 else if (endp[-1] != '/')
2344 nstore[endp-startp] = '/';
2345 nstore[endp-startp+1] = 0;
2348 nstore[endp-startp] = 0;
2349 add_prefix (&startfile_prefix, nstore, 0, 0, NULL_PTR);
2352 endp = startp = endp + 1;
2359 /* Convert new-style -- options to old-style. */
2360 translate_options (&argc, &argv);
2362 /* Scan argv twice. Here, the first time, just count how many switches
2363 there will be in their vector, and how many input files in theirs.
2364 Here we also parse the switches that cc itself uses (e.g. -v). */
2366 for (i = 1; i < argc; i++)
2368 if (! strcmp (argv[i], "-dumpspecs"))
2370 printf ("*asm:\n%s\n\n", asm_spec);
2371 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2372 printf ("*cpp:\n%s\n\n", cpp_spec);
2373 printf ("*cc1:\n%s\n\n", cc1_spec);
2374 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2375 printf ("*endfile:\n%s\n\n", endfile_spec);
2376 printf ("*link:\n%s\n\n", link_spec);
2377 printf ("*lib:\n%s\n\n", lib_spec);
2378 printf ("*startfile:\n%s\n\n", startfile_spec);
2379 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2380 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2381 printf ("*predefines:\n%s\n\n", cpp_predefines);
2382 printf ("*cross_compile:\n%d\n\n", cross_compile);
2383 printf ("*multilib:\n%s\n\n", multilib_select);
2387 else if (! strcmp (argv[i], "-dumpversion"))
2389 printf ("%s\n", version_string);
2392 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2393 print_file_name = "libgcc.a";
2394 else if (! strncmp (argv[i], "-print-file-name=", 17))
2395 print_file_name = argv[i] + 17;
2396 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2397 print_prog_name = argv[i] + 17;
2398 else if (! strcmp (argv[i], "-print-multi-lib"))
2399 print_multi_lib = 1;
2400 else if (! strcmp (argv[i], "-print-multi-directory"))
2401 print_multi_directory = 1;
2402 else if (! strcmp (argv[i], "-Xlinker"))
2404 /* Pass the argument of this option to the linker when we link. */
2407 fatal ("argument to `-Xlinker' is missing");
2410 if (!linker_options)
2412 = (char **) xmalloc (n_linker_options * sizeof (char **));
2415 = (char **) xrealloc (linker_options,
2416 n_linker_options * sizeof (char **));
2418 linker_options[n_linker_options - 1] = argv[++i];
2420 else if (! strncmp (argv[i], "-Wl,", 4))
2423 /* Pass the rest of this option to the linker when we link. */
2426 if (!linker_options)
2428 = (char **) xmalloc (n_linker_options * sizeof (char **));
2431 = (char **) xrealloc (linker_options,
2432 n_linker_options * sizeof (char **));
2434 /* Split the argument at commas. */
2436 for (j = 4; argv[i][j]; j++)
2437 if (argv[i][j] == ',')
2439 linker_options[n_linker_options - 1]
2440 = save_string (argv[i] + prev, j - prev);
2443 = (char **) xrealloc (linker_options,
2444 n_linker_options * sizeof (char **));
2447 /* Record the part after the last comma. */
2448 linker_options[n_linker_options - 1] = argv[i] + prev;
2450 else if (! strncmp (argv[i], "-Wa,", 4))
2453 /* Pass the rest of this option to the assembler. */
2455 n_assembler_options++;
2456 if (!assembler_options)
2458 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2461 = (char **) xrealloc (assembler_options,
2462 n_assembler_options * sizeof (char **));
2464 /* Split the argument at commas. */
2466 for (j = 4; argv[i][j]; j++)
2467 if (argv[i][j] == ',')
2469 assembler_options[n_assembler_options - 1]
2470 = save_string (argv[i] + prev, j - prev);
2471 n_assembler_options++;
2473 = (char **) xrealloc (assembler_options,
2474 n_assembler_options * sizeof (char **));
2477 /* Record the part after the last comma. */
2478 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2480 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2481 /* The +e options to the C++ front-end. */
2483 else if (argv[i][0] == '-' && argv[i][1] != 0 && argv[i][1] != 'l')
2485 register char *p = &argv[i][1];
2486 register int c = *p;
2491 if (p[1] == 0 && i + 1 == argc)
2492 fatal ("argument to `-b' is missing");
2494 spec_machine = argv[++i];
2496 spec_machine = p + 1;
2501 int *temp = (int *) xmalloc (sizeof (int));
2503 if (p[1] == 0 && i + 1 == argc)
2504 fatal ("argument to `-B' is missing");
2509 add_prefix (&exec_prefix, value, 1, 0, temp);
2510 add_prefix (&startfile_prefix, value, 1, 0, temp);
2511 add_prefix (&include_prefix, concat (value, "include", ""),
2514 /* As a kludge, if the arg is "[foo/]stageN/", just add
2515 "[foo/]include" to the include prefix. */
2517 int len = strlen (value);
2518 if ((len == 7 || (len > 7 && value[len - 8] == '/'))
2519 && strncmp (value + len - 7, "stage", 5) == 0
2520 && isdigit (value[len - 2])
2521 && value[len - 1] == '/')
2524 add_prefix (&include_prefix, "include", 1, 0, 0);
2527 char *string = xmalloc (len + 1);
2528 strncpy (string, value, len-7);
2529 strcat (string, "include");
2530 add_prefix (&include_prefix, string, 1, 0, 0);
2537 case 'v': /* Print our subcommands and print versions. */
2539 /* If they do anything other than exactly `-v', don't set
2540 verbose_flag; rather, continue on to give the error. */
2547 if (p[1] == 0 && i + 1 == argc)
2548 fatal ("argument to `-V' is missing");
2550 spec_version = argv[++i];
2552 spec_version = p + 1;
2553 compiler_version = spec_version;
2557 if (!strcmp (p, "save-temps"))
2559 save_temps_flag = 1;
2566 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2567 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2568 else if (WORD_SWITCH_TAKES_ARG (p))
2569 i += WORD_SWITCH_TAKES_ARG (p);
2576 /* Set up the search paths before we go looking for config files. */
2578 /* These come before the md prefixes so that we will find gcc's subcommands
2579 (such as cpp) rather than those of the host system. */
2580 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2581 as well as trying the machine and the version. */
2582 add_prefix (&exec_prefix, standard_exec_prefix, 0, 2, NULL_PTR);
2583 add_prefix (&exec_prefix, standard_exec_prefix_1, 0, 2, NULL_PTR);
2585 add_prefix (&startfile_prefix, standard_exec_prefix, 0, 1, NULL_PTR);
2586 add_prefix (&startfile_prefix, standard_exec_prefix_1, 0, 1, NULL_PTR);
2588 tooldir_prefix = concat (tooldir_base_prefix, spec_machine, "/");
2590 /* If tooldir is relative, base it on exec_prefix. A relative
2591 tooldir lets us move the installed tree as a unit.
2593 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2594 directories, so that we can search both the user specified directory
2595 and the standard place. */
2597 if (*tooldir_prefix != '/')
2599 if (gcc_exec_prefix)
2601 char *gcc_exec_tooldir_prefix
2602 = concat (concat (gcc_exec_prefix, spec_machine, "/"),
2603 concat (spec_version, "/", tooldir_prefix),
2606 add_prefix (&exec_prefix, concat (gcc_exec_tooldir_prefix, "bin", "/"),
2608 add_prefix (&startfile_prefix, concat (gcc_exec_tooldir_prefix, "lib", "/"),
2612 tooldir_prefix = concat (concat (standard_exec_prefix, spec_machine, "/"),
2613 concat (spec_version, "/", tooldir_prefix),
2617 add_prefix (&exec_prefix, concat (tooldir_prefix, "bin", "/"),
2619 add_prefix (&startfile_prefix, concat (tooldir_prefix, "lib", "/"),
2622 /* More prefixes are enabled in main, after we read the specs file
2623 and determine whether this is cross-compilation or not. */
2626 /* Then create the space for the vectors and scan again. */
2628 switches = ((struct switchstr *)
2629 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2630 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2633 last_language_n_infiles = -1;
2635 /* This, time, copy the text of each switch and store a pointer
2636 to the copy in the vector of switches.
2637 Store all the infiles in their vector. */
2639 for (i = 1; i < argc; i++)
2641 /* Just skip the switches that were handled by the preceding loop. */
2642 if (!strcmp (argv[i], "-Xlinker"))
2644 else if (! strncmp (argv[i], "-Wl,", 4))
2646 else if (! strncmp (argv[i], "-Wa,", 4))
2648 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2650 else if (! strncmp (argv[i], "-print-file-name=", 17))
2652 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2654 else if (! strcmp (argv[i], "-print-multi-lib"))
2656 else if (! strcmp (argv[i], "-print-multi-directory"))
2658 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2660 /* Compensate for the +e options to the C++ front-end;
2661 they're there simply for cfront call-compatibility. We do
2662 some magic in default_compilers to pass them down properly.
2663 Note we deliberately start at the `+' here, to avoid passing
2664 -e0 or -e1 down into the linker. */
2665 switches[n_switches].part1 = &argv[i][0];
2666 switches[n_switches].args = 0;
2667 switches[n_switches].live_cond = 0;
2668 switches[n_switches].valid = 0;
2671 else if (argv[i][0] == '-' && argv[i][1] != 0 && argv[i][1] != 'l')
2673 register char *p = &argv[i][1];
2674 register int c = *p;
2676 if (c == 'B' || c == 'b' || c == 'V')
2678 /* Skip a separate arg, if any. */
2685 if (p[1] == 0 && i + 1 == argc)
2686 fatal ("argument to `-x' is missing");
2688 spec_lang = argv[++i];
2691 if (! strcmp (spec_lang, "none"))
2692 /* Suppress the warning if -xnone comes after the last input file,
2693 because alternate command interfaces like g++ might find it
2694 useful to place -xnone after each input file. */
2697 last_language_n_infiles = n_infiles;
2700 switches[n_switches].part1 = p;
2701 /* Deal with option arguments in separate argv elements. */
2702 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2703 || WORD_SWITCH_TAKES_ARG (p))
2706 int n_args = WORD_SWITCH_TAKES_ARG (p);
2710 /* Count only the option arguments in separate argv elements. */
2711 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2713 if (i + n_args >= argc)
2714 fatal ("argument to `-%s' is missing", p);
2715 switches[n_switches].args
2716 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2718 switches[n_switches].args[j++] = argv[++i];
2719 /* Null-terminate the vector. */
2720 switches[n_switches].args[j] = 0;
2722 else if (*switches_need_spaces != 0 && (c == 'o' || c == 'L'))
2724 /* On some systems, ld cannot handle -o or -L without space.
2725 So split the -o or -L from its argument. */
2726 switches[n_switches].part1 = (c == 'o' ? "o" : "L");
2727 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2728 switches[n_switches].args[0] = xmalloc (strlen (p));
2729 strcpy (switches[n_switches].args[0], &p[1]);
2730 switches[n_switches].args[1] = 0;
2733 switches[n_switches].args = 0;
2735 switches[n_switches].live_cond = 0;
2736 switches[n_switches].valid = 0;
2737 /* This is always valid, since gcc.c itself understands it. */
2738 if (!strcmp (p, "save-temps"))
2739 switches[n_switches].valid = 1;
2744 if ((argv[i][0] != '-' || argv[i][1] != 'l')
2745 && strcmp (argv[i], "-")
2746 && access (argv[i], R_OK) < 0)
2748 perror_with_name (argv[i]);
2753 infiles[n_infiles].language = spec_lang;
2754 infiles[n_infiles++].name = argv[i];
2759 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2760 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2762 switches[n_switches].part1 = 0;
2763 infiles[n_infiles].name = 0;
2765 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
2766 if (gcc_exec_prefix)
2768 temp = (char *) xmalloc (strlen (gcc_exec_prefix) + strlen (spec_version)
2769 + strlen (spec_machine) + 3);
2770 strcpy (temp, gcc_exec_prefix);
2771 strcat (temp, spec_machine);
2773 strcat (temp, spec_version);
2775 gcc_exec_prefix = temp;
2779 /* Process a spec string, accumulating and running commands. */
2781 /* These variables describe the input file name.
2782 input_file_number is the index on outfiles of this file,
2783 so that the output file name can be stored for later use by %o.
2784 input_basename is the start of the part of the input file
2785 sans all directory names, and basename_length is the number
2786 of characters starting there excluding the suffix .c or whatever. */
2788 static char *input_filename;
2789 static int input_file_number;
2790 static int input_filename_length;
2791 static int basename_length;
2792 static char *input_basename;
2793 static char *input_suffix;
2795 /* These are variables used within do_spec and do_spec_1. */
2797 /* Nonzero if an arg has been started and not yet terminated
2798 (with space, tab or newline). */
2799 static int arg_going;
2801 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2802 is a temporary file name. */
2803 static int delete_this_arg;
2805 /* Nonzero means %w has been seen; the next arg to be terminated
2806 is the output file name of this compilation. */
2807 static int this_is_output_file;
2809 /* Nonzero means %s has been seen; the next arg to be terminated
2810 is the name of a library file and we should try the standard
2811 search dirs for it. */
2812 static int this_is_library_file;
2814 /* Nonzero means that the input of this command is coming from a pipe. */
2815 static int input_from_pipe;
2817 /* Process the spec SPEC and run the commands specified therein.
2818 Returns 0 if the spec is successfully processed; -1 if failed. */
2828 delete_this_arg = 0;
2829 this_is_output_file = 0;
2830 this_is_library_file = 0;
2831 input_from_pipe = 0;
2833 value = do_spec_1 (spec, 0, NULL_PTR);
2835 /* Force out any unfinished command.
2836 If -pipe, this forces out the last command if it ended in `|'. */
2839 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2842 if (argbuf_index > 0)
2849 /* Process the sub-spec SPEC as a portion of a larger spec.
2850 This is like processing a whole spec except that we do
2851 not initialize at the beginning and we do not supply a
2852 newline by default at the end.
2853 INSWITCH nonzero means don't process %-sequences in SPEC;
2854 in this case, % is treated as an ordinary character.
2855 This is used while substituting switches.
2856 INSWITCH nonzero also causes SPC not to terminate an argument.
2858 Value is zero unless a line was finished
2859 and the command on that line reported an error. */
2862 do_spec_1 (spec, inswitch, soft_matched_part)
2865 char *soft_matched_part;
2867 register char *p = spec;
2874 /* If substituting a switch, treat all chars like letters.
2875 Otherwise, NL, SPC, TAB and % are special. */
2876 switch (inswitch ? 'a' : c)
2879 /* End of line: finish any pending argument,
2880 then run the pending command if one has been started. */
2883 obstack_1grow (&obstack, 0);
2884 string = obstack_finish (&obstack);
2885 if (this_is_library_file)
2886 string = find_file (string);
2887 store_arg (string, delete_this_arg, this_is_output_file);
2888 if (this_is_output_file)
2889 outfiles[input_file_number] = string;
2893 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2896 for (i = 0; i < n_switches; i++)
2897 if (!strcmp (switches[i].part1, "pipe"))
2900 /* A `|' before the newline means use a pipe here,
2901 but only if -pipe was specified.
2902 Otherwise, execute now and don't pass the `|' as an arg. */
2905 input_from_pipe = 1;
2906 switches[i].valid = 1;
2913 if (argbuf_index > 0)
2919 /* Reinitialize for a new command, and for a new argument. */
2922 delete_this_arg = 0;
2923 this_is_output_file = 0;
2924 this_is_library_file = 0;
2925 input_from_pipe = 0;
2929 /* End any pending argument. */
2932 obstack_1grow (&obstack, 0);
2933 string = obstack_finish (&obstack);
2934 if (this_is_library_file)
2935 string = find_file (string);
2936 store_arg (string, delete_this_arg, this_is_output_file);
2937 if (this_is_output_file)
2938 outfiles[input_file_number] = string;
2942 obstack_1grow (&obstack, c);
2948 /* Space or tab ends an argument if one is pending. */
2951 obstack_1grow (&obstack, 0);
2952 string = obstack_finish (&obstack);
2953 if (this_is_library_file)
2954 string = find_file (string);
2955 store_arg (string, delete_this_arg, this_is_output_file);
2956 if (this_is_output_file)
2957 outfiles[input_file_number] = string;
2959 /* Reinitialize for a new argument. */
2961 delete_this_arg = 0;
2962 this_is_output_file = 0;
2963 this_is_library_file = 0;
2970 fatal ("Invalid specification! Bug in cc.");
2973 obstack_grow (&obstack, input_basename, basename_length);
2978 delete_this_arg = 2;
2981 /* Dump out the directories specified with LIBRARY_PATH,
2982 followed by the absolute directories
2983 that we search for startfiles. */
2986 struct prefix_list *pl = startfile_prefix.plist;
2988 char *buffer = (char *) xmalloc (bufsize);
2991 for (; pl; pl = pl->next)
2993 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
2994 /* Used on systems which record the specified -L dirs
2995 and use them to search for dynamic linking. */
2996 /* Relative directories always come from -B,
2997 and it is better not to use them for searching
2998 at run time. In particular, stage1 loses */
2999 if (pl->prefix[0] != '/')
3002 /* Try subdirectory if there is one. */
3003 if (multilib_dir != NULL)
3007 if (strlen (pl->prefix) + strlen (machine_suffix)
3009 bufsize = (strlen (pl->prefix)
3010 + strlen (machine_suffix)) * 2 + 1;
3011 buffer = (char *) xrealloc (buffer, bufsize);
3012 strcpy (buffer, pl->prefix);
3013 strcat (buffer, machine_suffix);
3014 if (is_directory (buffer, multilib_dir, 1))
3016 do_spec_1 ("-L", 0, NULL_PTR);
3017 #ifdef SPACE_AFTER_L_OPTION
3018 do_spec_1 (" ", 0, NULL_PTR);
3020 do_spec_1 (buffer, 1, NULL_PTR);
3021 do_spec_1 (multilib_dir, 1, NULL_PTR);
3022 /* Make this a separate argument. */
3023 do_spec_1 (" ", 0, NULL_PTR);
3026 if (!pl->require_machine_suffix)
3028 if (is_directory (pl->prefix, multilib_dir, 1))
3030 do_spec_1 ("-L", 0, NULL_PTR);
3031 #ifdef SPACE_AFTER_L_OPTION
3032 do_spec_1 (" ", 0, NULL_PTR);
3034 do_spec_1 (pl->prefix, 1, NULL_PTR);
3035 do_spec_1 (multilib_dir, 1, NULL_PTR);
3036 /* Make this a separate argument. */
3037 do_spec_1 (" ", 0, NULL_PTR);
3043 if (is_directory (pl->prefix, machine_suffix, 1))
3045 do_spec_1 ("-L", 0, NULL_PTR);
3046 #ifdef SPACE_AFTER_L_OPTION
3047 do_spec_1 (" ", 0, NULL_PTR);
3049 do_spec_1 (pl->prefix, 1, NULL_PTR);
3050 /* Remove slash from machine_suffix. */
3051 if (strlen (machine_suffix) >= bufsize)
3052 bufsize = strlen (machine_suffix) * 2 + 1;
3053 buffer = (char *) xrealloc (buffer, bufsize);
3054 strcpy (buffer, machine_suffix);
3055 idx = strlen (buffer);
3056 if (buffer[idx - 1] == '/')
3057 buffer[idx - 1] = 0;
3058 do_spec_1 (buffer, 1, NULL_PTR);
3059 /* Make this a separate argument. */
3060 do_spec_1 (" ", 0, NULL_PTR);
3063 if (!pl->require_machine_suffix)
3065 if (is_directory (pl->prefix, "", 1))
3067 do_spec_1 ("-L", 0, NULL_PTR);
3068 #ifdef SPACE_AFTER_L_OPTION
3069 do_spec_1 (" ", 0, NULL_PTR);
3071 /* Remove slash from pl->prefix. */
3072 if (strlen (pl->prefix) >= bufsize)
3073 bufsize = strlen (pl->prefix) * 2 + 1;
3074 buffer = (char *) xrealloc (buffer, bufsize);
3075 strcpy (buffer, pl->prefix);
3076 idx = strlen (buffer);
3077 if (buffer[idx - 1] == '/')
3078 buffer[idx - 1] = 0;
3079 do_spec_1 (buffer, 1, NULL_PTR);
3080 /* Make this a separate argument. */
3081 do_spec_1 (" ", 0, NULL_PTR);
3090 /* {...:%efoo} means report an error with `foo' as error message
3091 and don't execute any more commands for this file. */
3095 while (*p != 0 && *p != '\n') p++;
3096 buf = (char *) alloca (p - q + 1);
3097 strncpy (buf, q, p - q);
3107 if (save_temps_flag)
3109 obstack_grow (&obstack, input_basename, basename_length);
3110 delete_this_arg = 0;
3114 #ifdef MKTEMP_EACH_FILE
3115 /* ??? This has a problem: the total number of
3116 values mktemp can return is limited.
3117 That matters for the names of object files.
3118 In 2.4, do something about that. */
3119 struct temp_name *t;
3121 while (*p == '.' || isalpha (*p))
3124 /* See if we already have an association of %g/%u/%U and
3126 for (t = temp_names; t; t = t->next)
3127 if (t->length == p - suffix
3128 && strncmp (t->suffix, suffix, p - suffix) == 0
3129 && t->unique == (c != 'g'))
3132 /* Make a new association if needed. %u requires one. */
3133 if (t == 0 || c == 'u')
3137 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3138 t->next = temp_names;
3141 t->length = p - suffix;
3142 t->suffix = save_string (suffix, p - suffix);
3143 t->unique = (c != 'g');
3144 choose_temp_base ();
3145 t->filename = temp_filename;
3146 t->filename_length = temp_filename_length;
3149 obstack_grow (&obstack, t->filename, t->filename_length);
3150 delete_this_arg = 1;
3152 obstack_grow (&obstack, temp_filename, temp_filename_length);
3153 if (c == 'u' || c == 'U')
3159 sprintf (buff, "%d", unique);
3160 obstack_grow (&obstack, buff, strlen (buff));
3163 delete_this_arg = 1;
3169 obstack_grow (&obstack, input_filename, input_filename_length);
3175 struct prefix_list *pl = include_prefix.plist;
3177 if (gcc_exec_prefix)
3179 do_spec_1 ("-iprefix", 1, NULL_PTR);
3180 /* Make this a separate argument. */
3181 do_spec_1 (" ", 0, NULL_PTR);
3182 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3183 do_spec_1 (" ", 0, NULL_PTR);
3186 for (; pl; pl = pl->next)
3188 do_spec_1 ("-isystem", 1, NULL_PTR);
3189 /* Make this a separate argument. */
3190 do_spec_1 (" ", 0, NULL_PTR);
3191 do_spec_1 (pl->prefix, 1, NULL_PTR);
3192 do_spec_1 (" ", 0, NULL_PTR);
3200 for (f = 0; f < n_infiles; f++)
3201 store_arg (outfiles[f], 0, 0);
3206 this_is_library_file = 1;
3210 this_is_output_file = 1;
3215 int index = argbuf_index;
3216 /* Handle the {...} following the %W. */
3219 p = handle_braces (p + 1);
3222 /* If any args were output, mark the last one for deletion
3224 if (argbuf_index != index)
3225 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3229 /* %x{OPTION} records OPTION for %X to output. */
3235 /* Skip past the option value and make a copy. */
3240 string = save_string (p1 + 1, p - p1 - 2);
3242 /* See if we already recorded this option. */
3243 for (i = 0; i < n_linker_options; i++)
3244 if (! strcmp (string, linker_options[i]))
3250 /* This option is new; add it. */
3252 if (!linker_options)
3254 = (char **) xmalloc (n_linker_options * sizeof (char **));
3257 = (char **) xrealloc (linker_options,
3258 n_linker_options * sizeof (char **));
3260 linker_options[n_linker_options - 1] = string;
3264 /* Dump out the options accumulated previously using %x,
3265 -Xlinker and -Wl,. */
3267 for (i = 0; i < n_linker_options; i++)
3269 do_spec_1 (linker_options[i], 1, NULL_PTR);
3270 /* Make each accumulated option a separate argument. */
3271 do_spec_1 (" ", 0, NULL_PTR);
3275 /* Dump out the options accumulated previously using -Wa,. */
3277 for (i = 0; i < n_assembler_options; i++)
3279 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3280 /* Make each accumulated option a separate argument. */
3281 do_spec_1 (" ", 0, NULL_PTR);
3285 /* Here are digits and numbers that just process
3286 a certain constant string as a spec. */
3289 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3295 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3301 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3307 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3313 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3319 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3325 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3331 value = do_spec_1 (link_spec, 0, NULL_PTR);
3337 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3344 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3348 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3352 if (! strncmp (y, "-D", 2))
3353 /* Copy the whole option. */
3354 while (*y && *y != ' ' && *y != '\t')
3356 else if (*y == ' ' || *y == '\t')
3357 /* Copy whitespace to the result. */
3359 /* Don't copy other options. */
3366 value = do_spec_1 (buf, 0, NULL_PTR);
3374 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3378 /* Copy all of CPP_PREDEFINES into BUF,
3379 but put __ after every -D and at the end of each arg. */
3383 if (! strncmp (y, "-D", 2))
3391 || (*(y+1) != '_' && ! isupper (*(y+1))))
3393 /* Stick __ at front of macro name. */
3396 /* Arrange to stick __ at the end as well. */
3400 /* Copy the macro name. */
3401 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3410 /* Copy the value given, if any. */
3411 while (*y && *y != ' ' && *y != '\t')
3414 else if (*y == ' ' || *y == '\t')
3415 /* Copy whitespace to the result. */
3417 /* Don't copy -A options */
3423 /* Copy all of CPP_PREDEFINES into BUF,
3424 but put __ after every -D. */
3428 if (! strncmp (y, "-D", 2))
3433 || (*(y+1) != '_' && ! isupper (*(y+1))))
3435 /* Stick -D__ at front of macro name. */
3441 /* Copy the macro name. */
3442 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3445 /* Copy the value given, if any. */
3446 while (*y && *y != ' ' && *y != '\t')
3451 /* Do not copy this macro - we have just done it before */
3452 while (*y && *y != ' ' && *y != '\t')
3456 else if (*y == ' ' || *y == '\t')
3457 /* Copy whitespace to the result. */
3459 /* Don't copy -A options */
3465 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3469 if (! strncmp (y, "-A", 2))
3470 /* Copy the whole option. */
3471 while (*y && *y != ' ' && *y != '\t')
3473 else if (*y == ' ' || *y == '\t')
3474 /* Copy whitespace to the result. */
3476 /* Don't copy other options. */
3483 value = do_spec_1 (buf, 0, NULL_PTR);
3490 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3495 /* Here we define characters other than letters and digits. */
3498 p = handle_braces (p);
3504 obstack_1grow (&obstack, '%');
3508 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3509 do_spec_1 (" ", 0, NULL_PTR);
3512 /* Process a string found as the value of a spec given by name.
3513 This feature allows individual machine descriptions
3514 to add and use their own specs.
3515 %[...] modifies -D options the way %P does;
3516 %(...) uses the spec unmodified. */
3521 struct spec_list *sl;
3524 /* The string after the S/P is the name of a spec that is to be
3526 while (*p && *p != ')' && *p != ']')
3529 /* See if it's in the list */
3530 for (len = p - name, sl = specs; sl; sl = sl->next)
3531 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3541 value = do_spec_1 (name, 0, NULL_PTR);
3547 char *x = (char *) alloca (strlen (name) * 2 + 1);
3551 /* Copy all of NAME into BUF, but put __ after
3552 every -D and at the end of each arg, */
3555 if (! strncmp (y, "-D", 2))
3563 else if (*y == ' ' || *y == 0)
3577 value = do_spec_1 (buf, 0, NULL_PTR);
3583 /* Discard the closing paren or bracket. */
3591 int c1 = *p++; /* Select first or second version number. */
3592 char *v = compiler_version;
3594 /* If desired, advance to second version number. */
3597 /* Set P after the first period. */
3598 while (*v != 0 && *v != ' ' && *v != '.')
3603 /* Set Q at the next period or at the end. */
3605 while (*q != 0 && *q != ' ' && *q != '.')
3607 /* Empty string means zero. */
3613 /* Put that part into the command. */
3614 obstack_grow (&obstack, v, q - v);
3620 if (input_from_pipe)
3621 do_spec_1 ("-", 0, NULL_PTR);
3630 /* Backslash: treat next character as ordinary. */
3635 /* Ordinary character: put it into the current argument. */
3636 obstack_1grow (&obstack, c);
3640 return 0; /* End of string */
3643 /* Return 0 if we call do_spec_1 and that returns -1. */
3656 /* A `|' after the open-brace means,
3657 if the test fails, output a single minus sign rather than nothing.
3658 This is used in %{|!pipe:...}. */
3662 /* A `!' after the open-brace negates the condition:
3663 succeed if the specified switch is not present. */
3667 /* A `.' after the open-brace means test against the current suffix. */
3677 while (*p != ':' && *p != '}') p++;
3680 register int count = 1;
3698 int found = (input_suffix != 0
3699 && strlen (input_suffix) == p - filter
3700 && strncmp (input_suffix, filter, p - filter) == 0);
3706 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3711 else if (p[-1] == '*' && p[0] == '}')
3713 /* Substitute all matching switches as separate args. */
3716 for (i = 0; i < n_switches; i++)
3717 if (!strncmp (switches[i].part1, filter, p - filter)
3718 && check_live_switch (i, p - filter))
3723 /* Test for presence of the specified switch. */
3727 /* If name specified ends in *, as in {x*:...},
3728 check for %* and handle that case. */
3729 if (p[-1] == '*' && !negate)
3734 /* First see whether we have %*. */
3738 if (*r == '%' && r[1] == '*')
3742 /* If we do, handle that case. */
3745 /* Substitute all matching switches as separate args.
3746 But do this by substituting for %*
3747 in the text that follows the colon. */
3749 unsigned hard_match_len = p - filter - 1;
3750 char *string = save_string (p + 1, q - p - 2);
3752 for (i = 0; i < n_switches; i++)
3753 if (!strncmp (switches[i].part1, filter, hard_match_len)
3754 && check_live_switch (i, -1))
3756 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3757 /* Pass any arguments this switch has. */
3765 /* If name specified ends in *, as in {x*:...},
3766 check for presence of any switch name starting with x. */
3769 for (i = 0; i < n_switches; i++)
3771 unsigned hard_match_len = p - filter - 1;
3773 if (!strncmp (switches[i].part1, filter, hard_match_len)
3774 && check_live_switch (i, hard_match_len))
3780 /* Otherwise, check for presence of exact name specified. */
3783 for (i = 0; i < n_switches; i++)
3785 if (!strncmp (switches[i].part1, filter, p - filter)
3786 && switches[i].part1[p - filter] == 0
3787 && check_live_switch (i, -1))
3795 /* If it is as desired (present for %{s...}, absent for %{-s...})
3796 then substitute either the switch or the specified
3797 conditional text. */
3798 if (present != negate)
3806 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3812 /* Here if a %{|...} conditional fails: output a minus sign,
3813 which means "standard output" or "standard input". */
3814 do_spec_1 ("-", 0, NULL_PTR);
3821 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
3822 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
3823 spec, or -1 if either exact match or %* is used.
3825 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
3826 whose value does not begin with "no-" is obsoleted by the same value
3827 with the "no-", similarly for a switch with the "no-" prefix. */
3830 check_live_switch (switchnum, prefix_length)
3834 char *name = switches[switchnum].part1;
3837 /* In the common case of {<at-most-one-letter>*}, a negating
3838 switch would always match, so ignore that case. We will just
3839 send the conflicting switches to the compiler phase. */
3840 if (prefix_length >= 0 && prefix_length <= 1)
3843 /* If we already processed this switch and determined if it was
3844 live or not, return our past determination. */
3845 if (switches[switchnum].live_cond != 0)
3846 return switches[switchnum].live_cond > 0;
3848 /* Now search for duplicate in a manner that depends on the name. */
3852 for (i = switchnum + 1; i < n_switches; i++)
3853 if (switches[i].part1[0] == 'O')
3855 switches[switchnum].valid = 1;
3856 switches[switchnum].live_cond = -1;
3861 case 'W': case 'f': case 'm':
3862 if (! strncmp (name + 1, "no-", 3))
3864 /* We have Xno-YYY, search for XYYY. */
3865 for (i = switchnum + 1; i < n_switches; i++)
3866 if (switches[i].part1[0] == name[0]
3867 && ! strcmp (&switches[i].part1[1], &name[4]))
3869 switches[switchnum].valid = 1;
3870 switches[switchnum].live_cond = -1;
3876 /* We have XYYY, search for Xno-YYY. */
3877 for (i = switchnum + 1; i < n_switches; i++)
3878 if (switches[i].part1[0] == name[0]
3879 && switches[i].part1[1] == 'n'
3880 && switches[i].part1[2] == 'o'
3881 && switches[i].part1[3] == '-'
3882 && !strcmp (&switches[i].part1[4], &name[1]))
3884 switches[switchnum].valid = 1;
3885 switches[switchnum].live_cond = -1;
3892 /* Otherwise the switch is live. */
3893 switches[switchnum].live_cond = 1;
3897 /* Pass a switch to the current accumulating command
3898 in the same form that we received it.
3899 SWITCHNUM identifies the switch; it is an index into
3900 the vector of switches gcc received, which is `switches'.
3901 This cannot fail since it never finishes a command line.
3903 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
3906 give_switch (switchnum, omit_first_word)
3908 int omit_first_word;
3910 if (!omit_first_word)
3912 do_spec_1 ("-", 0, NULL_PTR);
3913 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
3915 do_spec_1 (" ", 0, NULL_PTR);
3916 if (switches[switchnum].args != 0)
3919 for (p = switches[switchnum].args; *p; p++)
3921 do_spec_1 (*p, 1, NULL_PTR);
3922 do_spec_1 (" ", 0, NULL_PTR);
3925 switches[switchnum].valid = 1;
3928 /* Search for a file named NAME trying various prefixes including the
3929 user's -B prefix and some standard ones.
3930 Return the absolute file name found. If nothing is found, return NAME. */
3938 /* Try multilib_dir if it is defined. */
3939 if (multilib_dir != NULL)
3943 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
3944 strcpy (try, multilib_dir);
3948 newname = find_a_file (&startfile_prefix, try, R_OK);
3950 /* If we don't find it in the multi library dir, then fall
3951 through and look for it in the normal places. */
3952 if (newname != NULL)
3956 newname = find_a_file (&startfile_prefix, name, R_OK);
3957 return newname ? newname : name;
3960 /* Determine whether a directory exists. If LINKER, return 0 for
3961 certain fixed names not needed by the linker. If not LINKER, it is
3962 only important to return 0 if the host machine has a small ARG_MAX
3966 is_directory (path1, path2, linker)
3971 int len1 = strlen (path1);
3972 int len2 = strlen (path2);
3973 char *path = (char *) alloca (3 + len1 + len2);
3977 #ifndef SMALL_ARG_MAX
3982 /* Construct the path from the two parts. Ensure the string ends with "/.".
3983 The resulting path will be a directory even if the given path is a
3985 bcopy (path1, path, len1);
3986 bcopy (path2, path + len1, len2);
3987 cp = path + len1 + len2;
3993 /* Exclude directories that the linker is known to search. */
3995 && ((cp - path == 6 && strcmp (path, "/lib/.") == 0)
3996 || (cp - path == 10 && strcmp (path, "/usr/lib/.") == 0)))
3999 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4002 /* On fatal signals, delete all the temporary files. */
4005 fatal_error (signum)
4008 signal (signum, SIG_DFL);
4009 delete_failure_queue ();
4010 delete_temp_files ();
4011 /* Get the same signal again, this time not handled,
4012 so its normal effect occurs. */
4013 kill (getpid (), signum);
4024 int linker_was_run = 0;
4025 char *explicit_link_files;
4029 p = argv[0] + strlen (argv[0]);
4030 while (p != argv[0] && p[-1] != '/') --p;
4033 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4034 signal (SIGINT, fatal_error);
4036 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4037 signal (SIGHUP, fatal_error);
4039 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4040 signal (SIGTERM, fatal_error);
4042 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4043 signal (SIGPIPE, fatal_error);
4047 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4049 obstack_init (&obstack);
4051 /* Set up to remember the pathname of gcc and any options
4052 needed for collect. We use argv[0] instead of programname because
4053 we need the complete pathname. */
4054 obstack_init (&collect_obstack);
4055 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4056 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4057 putenv (obstack_finish (&collect_obstack));
4059 /* Choose directory for temp files. */
4061 choose_temp_base ();
4063 /* Make a table of what switches there are (switches, n_switches).
4064 Make a table of specified input files (infiles, n_infiles).
4065 Decode switches that are handled locally. */
4067 process_command (argc, argv);
4069 /* Initialize the vector of specs to just the default.
4070 This means one element containing 0s, as a terminator. */
4072 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4073 bcopy ((char *) default_compilers, (char *) compilers,
4074 sizeof default_compilers);
4075 n_compilers = n_default_compilers;
4077 /* Read specs from a file if there is one. */
4079 machine_suffix = concat (spec_machine, "/", concat (spec_version, "/", ""));
4080 just_machine_suffix = concat (spec_machine, "/", "");
4082 specs_file = find_a_file (&startfile_prefix, "specs", R_OK);
4083 /* Read the specs file unless it is a default one. */
4084 if (specs_file != 0 && strcmp (specs_file, "specs"))
4085 read_specs (specs_file);
4087 /* If not cross-compiling, look for startfiles in the standard places. */
4088 /* The fact that these are done here, after reading the specs file,
4089 means that it cannot be found in these directories.
4090 But that's okay. It should never be there anyway. */
4093 #ifdef MD_EXEC_PREFIX
4094 add_prefix (&exec_prefix, md_exec_prefix, 0, 0, NULL_PTR);
4095 add_prefix (&startfile_prefix, md_exec_prefix, 0, 0, NULL_PTR);
4098 #ifdef MD_STARTFILE_PREFIX
4099 add_prefix (&startfile_prefix, md_startfile_prefix, 0, 0, NULL_PTR);
4102 #ifdef MD_STARTFILE_PREFIX_1
4103 add_prefix (&startfile_prefix, md_startfile_prefix_1, 0, 0, NULL_PTR);
4106 /* If standard_startfile_prefix is relative, base it on
4107 standard_exec_prefix. This lets us move the installed tree
4108 as a unit. If GCC_EXEC_PREFIX is defined, base
4109 standard_startfile_prefix on that as well. */
4110 if (*standard_startfile_prefix == '/')
4111 add_prefix (&startfile_prefix, standard_startfile_prefix, 0, 0,
4115 if (gcc_exec_prefix)
4116 add_prefix (&startfile_prefix,
4117 concat (gcc_exec_prefix,
4118 standard_startfile_prefix,
4121 add_prefix (&startfile_prefix,
4122 concat (standard_exec_prefix,
4124 standard_startfile_prefix),
4128 add_prefix (&startfile_prefix, standard_startfile_prefix_1, 0, 0,
4130 add_prefix (&startfile_prefix, standard_startfile_prefix_2, 0, 0,
4132 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4133 add_prefix (&startfile_prefix, "./", 0, 1, NULL_PTR);
4137 /* Now we have the specs.
4138 Set the `valid' bits for switches that match anything in any spec. */
4140 validate_all_switches ();
4142 /* Now that we have the switches and the specs, set
4143 the subdirectory based on the options. */
4144 set_multilib_dir ();
4146 /* Warn about any switches that no pass was interested in. */
4148 for (i = 0; i < n_switches; i++)
4149 if (! switches[i].valid)
4150 error ("unrecognized option `-%s'", switches[i].part1);
4152 /* Obey some of the options. */
4154 if (print_file_name)
4156 printf ("%s\n", find_file (print_file_name));
4160 if (print_prog_name)
4162 char *newname = find_a_file (&exec_prefix, print_prog_name, X_OK);
4163 printf ("%s\n", (newname ? newname : print_prog_name));
4167 if (print_multi_lib)
4169 print_multilib_info ();
4173 if (print_multi_directory)
4175 if (multilib_dir == NULL)
4178 printf ("%s\n", multilib_dir);
4184 fprintf (stderr, "gcc version %s\n", version_string);
4190 fatal ("No input files");
4192 /* Make a place to record the compiler output file names
4193 that correspond to the input files. */
4195 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4196 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4198 /* Record which files were specified explicitly as link input. */
4200 explicit_link_files = xmalloc (n_infiles);
4201 bzero (explicit_link_files, n_infiles);
4203 for (i = 0; i < n_infiles; i++)
4205 register struct compiler *cp = 0;
4206 int this_file_error = 0;
4208 /* Tell do_spec what to substitute for %i. */
4210 input_filename = infiles[i].name;
4211 input_filename_length = strlen (input_filename);
4212 input_file_number = i;
4214 /* Use the same thing in %o, unless cp->spec says otherwise. */
4216 outfiles[i] = input_filename;
4218 /* Figure out which compiler from the file's suffix. */
4220 cp = lookup_compiler (infiles[i].name, input_filename_length,
4221 infiles[i].language);
4225 /* Ok, we found an applicable compiler. Run its spec. */
4226 /* First say how much of input_filename to substitute for %b */
4230 input_basename = input_filename;
4231 for (p = input_filename; *p; p++)
4233 input_basename = p + 1;
4235 /* Find a suffix starting with the last period,
4236 and set basename_length to exclude that suffix. */
4237 basename_length = strlen (input_basename);
4238 p = input_basename + basename_length;
4239 while (p != input_basename && *p != '.') --p;
4240 if (*p == '.' && p != input_basename)
4242 basename_length = p - input_basename;
4243 input_suffix = p + 1;
4249 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4251 len += strlen (cp->spec[j]);
4253 p = (char *) xmalloc (len + 1);
4256 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4259 strcpy (p + len, cp->spec[j]);
4260 len += strlen (cp->spec[j]);
4263 value = do_spec (p);
4266 this_file_error = 1;
4269 /* If this file's name does not contain a recognized suffix,
4270 record it as explicit linker input. */
4273 explicit_link_files[i] = 1;
4275 /* Clear the delete-on-failure queue, deleting the files in it
4276 if this compilation failed. */
4278 if (this_file_error)
4280 delete_failure_queue ();
4283 /* If this compilation succeeded, don't delete those files later. */
4284 clear_failure_queue ();
4287 /* Run ld to link all the compiler output files. */
4289 if (error_count == 0)
4291 int tmp = execution_count;
4295 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4297 putenv_from_prefixes (&exec_prefix, "COMPILER_PATH=");
4298 putenv_from_prefixes (&startfile_prefix, "LIBRARY_PATH=");
4300 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4302 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4303 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4306 for (i = 0; i < n_switches; i++)
4310 obstack_grow (&collect_obstack, " ", 1);
4313 obstack_grow (&collect_obstack, "-", 1);
4314 obstack_grow (&collect_obstack, switches[i].part1,
4315 strlen (switches[i].part1));
4317 for (args = switches[i].args; args && *args; args++)
4319 obstack_grow (&collect_obstack, " ", 1);
4320 obstack_grow (&collect_obstack, *args, strlen (*args));
4323 obstack_grow (&collect_obstack, "\0", 1);
4324 putenv (obstack_finish (&collect_obstack));
4326 value = do_spec (link_command_spec);
4329 linker_was_run = (tmp != execution_count);
4332 /* Warn if a -B option was specified but the prefix was never used. */
4333 unused_prefix_warnings (&exec_prefix);
4334 unused_prefix_warnings (&startfile_prefix);
4336 /* If options said don't run linker,
4337 complain about input files to be given to the linker. */
4339 if (! linker_was_run && error_count == 0)
4340 for (i = 0; i < n_infiles; i++)
4341 if (explicit_link_files[i])
4342 error ("%s: linker input file unused since linking not done",
4345 /* Delete some or all of the temporary files we made. */
4348 delete_failure_queue ();
4349 delete_temp_files ();
4351 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4356 /* Find the proper compilation spec for the file name NAME,
4357 whose length is LENGTH. LANGUAGE is the specified language,
4358 or 0 if none specified. */
4360 static struct compiler *
4361 lookup_compiler (name, length, language)
4366 struct compiler *cp;
4368 /* Look for the language, if one is spec'd. */
4371 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4375 if (cp->suffix[0] == '@'
4376 && !strcmp (cp->suffix + 1, language))
4380 error ("language %s not recognized", language);
4383 /* Look for a suffix. */
4384 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4386 if (/* The suffix `-' matches only the file name `-'. */
4387 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4389 (strlen (cp->suffix) < length
4390 /* See if the suffix matches the end of NAME. */
4391 && !strcmp (cp->suffix,
4392 name + length - strlen (cp->suffix))))
4394 if (cp->spec[0][0] == '@')
4396 struct compiler *new;
4397 /* An alias entry maps a suffix to a language.
4398 Search for the language; pass 0 for NAME and LENGTH
4399 to avoid infinite recursion if language not found.
4400 Construct the new compiler spec. */
4401 language = cp->spec[0] + 1;
4402 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4403 new->suffix = cp->suffix;
4404 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4405 (char *) new->spec, sizeof new->spec);
4408 /* A non-alias entry: return it. */
4420 register char *value = (char *) malloc (size);
4422 fatal ("virtual memory exhausted");
4427 xrealloc (ptr, size)
4431 register char *value = (char *) realloc (ptr, size);
4433 fatal ("virtual memory exhausted");
4437 /* Return a newly-allocated string whose contents concatenate those of s1, s2, s3. */
4443 int len1 = strlen (s1), len2 = strlen (s2), len3 = strlen (s3);
4444 char *result = xmalloc (len1 + len2 + len3 + 1);
4446 strcpy (result, s1);
4447 strcpy (result + len1, s2);
4448 strcpy (result + len1 + len2, s3);
4449 *(result + len1 + len2 + len3) = 0;
4455 save_string (s, len)
4459 register char *result = xmalloc (len + 1);
4461 bcopy (s, result, len);
4467 pfatal_with_name (name)
4472 if (errno < sys_nerr)
4473 s = concat ("%s: ", sys_errlist[errno], "");
4475 s = "cannot open %s";
4480 perror_with_name (name)
4485 if (errno < sys_nerr)
4486 s = concat ("%s: ", sys_errlist[errno], "");
4488 s = "cannot open %s";
4498 if (errno < sys_nerr)
4499 s = concat ("installation problem, cannot exec %s: ",
4500 sys_errlist[errno], "");
4502 s = "installation problem, cannot exec %s";
4506 /* More 'friendly' abort that prints the line and file.
4507 config.h can #define abort fancy_abort if you like that sort of thing. */
4512 fatal ("Internal gcc abort.");
4517 /* Output an error message and exit */
4520 fatal VPROTO((char *format, ...))
4527 VA_START (ap, format);
4530 format = va_arg (ap, char*);
4533 fprintf (stderr, "%s: ", programname);
4534 vfprintf (stderr, format, ap);
4536 fprintf (stderr, "\n");
4537 delete_temp_files ();
4542 error VPROTO((char *format, ...))
4549 VA_START (ap, format);
4552 format = va_arg (ap, char*);
4555 fprintf (stderr, "%s: ", programname);
4556 vfprintf (stderr, format, ap);
4559 fprintf (stderr, "\n");
4562 #else /* not HAVE_VPRINTF */
4565 fatal (msg, arg1, arg2)
4566 char *msg, *arg1, *arg2;
4568 error (msg, arg1, arg2);
4569 delete_temp_files ();
4574 error (msg, arg1, arg2)
4575 char *msg, *arg1, *arg2;
4577 fprintf (stderr, "%s: ", programname);
4578 fprintf (stderr, msg, arg1, arg2);
4579 fprintf (stderr, "\n");
4582 #endif /* not HAVE_VPRINTF */
4586 validate_all_switches ()
4588 struct compiler *comp;
4591 struct spec_list *spec;
4593 for (comp = compilers; comp->spec[0]; comp++)
4596 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4600 if (c == '%' && *p == '{')
4601 /* We have a switch spec. */
4602 validate_switches (p + 1);
4606 /* look through the linked list of extra specs read from the specs file */
4607 for (spec = specs; spec ; spec = spec->next)
4611 if (c == '%' && *p == '{')
4612 /* We have a switch spec. */
4613 validate_switches (p + 1);
4616 p = link_command_spec;
4618 if (c == '%' && *p == '{')
4619 /* We have a switch spec. */
4620 validate_switches (p + 1);
4622 /* Now notice switches mentioned in the machine-specific specs. */
4626 if (c == '%' && *p == '{')
4627 /* We have a switch spec. */
4628 validate_switches (p + 1);
4632 if (c == '%' && *p == '{')
4633 /* We have a switch spec. */
4634 validate_switches (p + 1);
4638 if (c == '%' && *p == '{')
4639 /* We have a switch spec. */
4640 validate_switches (p + 1);
4642 p = signed_char_spec;
4644 if (c == '%' && *p == '{')
4645 /* We have a switch spec. */
4646 validate_switches (p + 1);
4650 if (c == '%' && *p == '{')
4651 /* We have a switch spec. */
4652 validate_switches (p + 1);
4656 if (c == '%' && *p == '{')
4657 /* We have a switch spec. */
4658 validate_switches (p + 1);
4662 if (c == '%' && *p == '{')
4663 /* We have a switch spec. */
4664 validate_switches (p + 1);
4668 if (c == '%' && *p == '{')
4669 /* We have a switch spec. */
4670 validate_switches (p + 1);
4674 if (c == '%' && *p == '{')
4675 /* We have a switch spec. */
4676 validate_switches (p + 1);
4679 /* Look at the switch-name that comes after START
4680 and mark as valid all supplied switches that match it. */
4683 validate_switches (start)
4686 register char *p = start;
4701 while (*p != ':' && *p != '}') p++;
4705 else if (p[-1] == '*')
4707 /* Mark all matching switches as valid. */
4709 for (i = 0; i < n_switches; i++)
4710 if (!strncmp (switches[i].part1, filter, p - filter))
4711 switches[i].valid = 1;
4715 /* Mark an exact matching switch as valid. */
4716 for (i = 0; i < n_switches; i++)
4718 if (!strncmp (switches[i].part1, filter, p - filter)
4719 && switches[i].part1[p - filter] == 0)
4720 switches[i].valid = 1;
4725 /* Check whether a particular argument was used. */
4734 for (i = 0; i < n_switches; i++)
4735 if (! strncmp (switches[i].part1, p, len)
4736 && strlen (switches[i].part1) == len)
4741 /* Work out the subdirectory to use based on the
4742 options. The format of multilib_select is a list of elements.
4743 Each element is a subdirectory name followed by a list of options
4744 followed by a semicolon. gcc will consider each line in turn. If
4745 none of the options beginning with an exclamation point are
4746 present, and all of the other options are present, that
4747 subdirectory will be used. */
4752 char *p = multilib_select;
4754 char *this_path, *this_arg;
4759 /* Ignore newlines. */
4766 /* Get the initial path. */
4774 this_path_len = p - this_path;
4776 /* Check the arguments. */
4791 while (*p != ' ' && *p != ';')
4798 if (*this_arg == '!')
4799 failed = used_arg (this_arg + 1, p - (this_arg + 1));
4801 failed = ! used_arg (this_arg, p - this_arg);
4809 if (this_path_len != 1
4810 || this_path[0] != '.')
4812 multilib_dir = xmalloc (this_path_len + 1);
4813 strncpy (multilib_dir, this_path, this_path_len);
4814 multilib_dir[this_path_len] = '\0';
4823 /* Print out the multiple library subdirectory selection
4824 information. This prints out a series of lines. Each line looks
4825 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
4826 required. Only the desired options are printed out, the negative
4827 matches. The options are print without a leading dash. There are
4828 no spaces to make it easy to use the information in the shell.
4829 Each subdirectory is printed only once. This assumes the ordering
4830 generated by the genmultilib script. */
4833 print_multilib_info ()
4835 char *p = multilib_select;
4836 char *last_path, *this_path;
4837 int last_path_len, skip, use_arg;
4841 /* Ignore newlines. */
4848 /* Get the initial path. */
4857 /* If this is a duplicate, skip it. */
4858 skip = (p - this_path == last_path_len
4859 && ! strncmp (last_path, this_path, last_path_len));
4861 last_path = this_path;
4862 last_path_len = p - this_path;
4868 for (p1 = last_path; p1 < p; p1++)
4887 use_arg = *p != '!';
4892 while (*p != ' ' && *p != ';')