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. */
48 /* Include multi-lib information. */
57 /* Add prototype support. */
59 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
60 #define PROTO(ARGS) ARGS
62 #define PROTO(ARGS) ()
68 #define PVPROTO(ARGS) ARGS
69 #define VPROTO(ARGS) ARGS
70 #define VA_START(va_list,var) va_start(va_list,var)
72 #define PVPROTO(ARGS) ()
73 #define VPROTO(ARGS) (va_alist) va_dcl
74 #define VA_START(va_list,var) va_start(va_list)
78 /* Define a generic NULL if one hasn't already been defined. */
85 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
86 #define GENERIC_PTR void *
88 #define GENERIC_PTR char *
93 #define NULL_PTR ((GENERIC_PTR)0)
100 /* On MSDOS, write temp files in current dir
101 because there's no place else we can expect to use. */
108 /* Test if something is a normal file. */
110 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
113 /* Test if something is a directory. */
115 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
118 /* By default there is no special suffix for executables. */
119 #ifndef EXECUTABLE_SUFFIX
120 #define EXECUTABLE_SUFFIX ""
123 /* By default, colon separates directories in a path. */
124 #ifndef PATH_SEPARATOR
125 #define PATH_SEPARATOR ':'
128 #define obstack_chunk_alloc xmalloc
129 #define obstack_chunk_free free
132 extern char *getenv ();
134 extern int errno, sys_nerr;
136 extern const char *const sys_errlist[];
138 extern char *sys_errlist[];
141 extern int execv (), execvp ();
143 /* If a stage of compilation returns an exit status >= 1,
144 compilation of that file ceases. */
146 #define MIN_FATAL_STATUS 1
148 /* Flag saying to print the full filename of this file
149 as found through our usual search mechanism. */
151 static char *print_file_name = NULL;
153 /* As print_file_name, but search for executable file. */
155 static char *print_prog_name = NULL;
157 /* Flag saying to print the relative path we'd use to
158 find libgcc.a given the current compiler flags. */
160 static int print_multi_directory;
162 /* Flag saying to print the list of subdirectories and
163 compiler flags used to select them in a standard form. */
165 static int print_multi_lib;
167 /* Flag indicating whether we should print the command and arguments */
169 static int verbose_flag;
171 /* Nonzero means write "temp" files in source directory
172 and use the source file's name in them, and don't delete them. */
174 static int save_temps_flag;
176 /* The compiler version. */
178 static char *compiler_version;
180 /* The target version specified with -V */
182 static char *spec_version = DEFAULT_TARGET_VERSION;
184 /* The target machine specified with -b. */
186 static char *spec_machine = DEFAULT_TARGET_MACHINE;
188 /* Nonzero if cross-compiling.
189 When -b is used, the value comes from the `specs' file. */
192 static int cross_compile = 1;
194 static int cross_compile = 0;
197 /* The number of errors that have occurred; the link phase will not be
198 run if this is non-zero. */
199 static int error_count = 0;
201 /* This is the obstack which we use to allocate many strings. */
203 static struct obstack obstack;
205 /* This is the obstack to build an environment variable to pass to
206 collect2 that describes all of the relevant switches of what to
207 pass the compiler in building the list of pointers to constructors
210 static struct obstack collect_obstack;
212 extern char *version_string;
214 /* Forward declaration for prototypes. */
217 static void set_spec PROTO((char *, char *));
218 static struct compiler *lookup_compiler PROTO((char *, int, char *));
219 static char *find_a_file PROTO((struct path_prefix *, char *, int));
220 static void add_prefix PROTO((struct path_prefix *, char *, int, int, int *));
221 static char *skip_whitespace PROTO((char *));
222 static void record_temp_file PROTO((char *, int, int));
223 static void delete_if_ordinary PROTO((char *));
224 static void delete_temp_files PROTO((void));
225 static void delete_failure_queue PROTO((void));
226 static void clear_failure_queue PROTO((void));
227 static char *choose_temp_base_try PROTO((char *, char *));
228 static void choose_temp_base PROTO((void));
229 static int check_live_switch PROTO((int, int));
230 static char *handle_braces PROTO((char *));
231 static char *save_string PROTO((char *, int));
232 static char *concat PROTO((char *, char *, char *));
233 static int do_spec PROTO((char *));
234 static int do_spec_1 PROTO((char *, int, char *));
235 static char *find_file PROTO((char *));
236 static int is_directory PROTO((char *, char *, int));
237 static void validate_switches PROTO((char *));
238 static void validate_all_switches PROTO((void));
239 static void give_switch PROTO((int, int));
240 static int used_arg PROTO((char *, int));
241 static void set_multilib_dir PROTO((void));
242 static void print_multilib_info PROTO((void));
243 static void pfatal_with_name PROTO((char *));
244 static void perror_with_name PROTO((char *));
245 static void perror_exec PROTO((char *));
247 static void fatal PVPROTO((char *, ...));
248 static void error PVPROTO((char *, ...));
250 /* We must not provide any prototype here, even if ANSI C. */
251 static void fatal PROTO(());
252 static void error PROTO(());
259 /* Specs are strings containing lines, each of which (if not blank)
260 is made up of a program name, and arguments separated by spaces.
261 The program name must be exact and start from root, since no path
262 is searched and it is unreliable to depend on the current working directory.
263 Redirection of input or output is not supported; the subprograms must
264 accept filenames saying what files to read and write.
266 In addition, the specs can contain %-sequences to substitute variable text
267 or for conditional text. Here is a table of all defined %-sequences.
268 Note that spaces are not generated automatically around the results of
269 expanding these sequences; therefore, you can concatenate them together
270 or with constant text in a single argument.
272 %% substitute one % into the program name or argument.
273 %i substitute the name of the input file being processed.
274 %b substitute the basename of the input file being processed.
275 This is the substring up to (and not including) the last period
276 and not including the directory.
277 %g substitute the temporary-file-name-base. This is a string chosen
278 once per compilation. Different temporary file names are made by
279 concatenation of constant strings on the end, as in `%g.s'.
280 %g also has the same effect of %d.
281 %u like %g, but make the temporary file name unique.
282 %U returns the last file name generated with %u.
283 %d marks the argument containing or following the %d as a
284 temporary file name, so that that file will be deleted if CC exits
285 successfully. Unlike %g, this contributes no text to the argument.
286 %w marks the argument containing or following the %w as the
287 "output file" of this compilation. This puts the argument
288 into the sequence of arguments that %o will substitute later.
290 like %{...} but mark last argument supplied within
291 as a file to be deleted on failure.
292 %o substitutes the names of all the output files, with spaces
293 automatically placed around them. You should write spaces
294 around the %o as well or the results are undefined.
295 %o is for use in the specs for running the linker.
296 Input files whose names have no recognized suffix are not compiled
297 at all, but they are included among the output files, so they will
299 %p substitutes the standard macro predefinitions for the
300 current target machine. Use this when running cpp.
301 %P like %p, but puts `__' before and after the name of each macro.
302 (Except macros that already have __.)
304 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
305 %s current argument is the name of a library or startup file of some sort.
306 Search for that file in a standard list of directories
307 and substitute the full name found.
308 %eSTR Print STR as an error message. STR is terminated by a newline.
309 Use this when inconsistent options are detected.
310 %x{OPTION} Accumulate an option for %X.
311 %X Output the accumulated linker options specified by compilations.
312 %Y Output the accumulated assembler options specified by compilations.
313 %v1 Substitute the major version number of GCC.
314 (For version 2.5.n, this is 2.)
315 %v2 Substitute the minor version number of GCC.
316 (For version 2.5.n, this is 5.)
317 %a process ASM_SPEC as a spec.
318 This allows config.h to specify part of the spec for running as.
319 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
320 used here. This can be used to run a post-processor after the
321 assembler has done it's job.
322 %D Dump out a -L option for each directory in startfile_prefix.
323 If multilib_dir is set, extra entries are generated with it affixed.
324 %l process LINK_SPEC as a spec.
325 %L process LIB_SPEC as a spec.
326 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
327 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
328 %c process SIGNED_CHAR_SPEC as a spec.
329 %C process CPP_SPEC as a spec. A capital C is actually used here.
330 %1 process CC1_SPEC as a spec.
331 %2 process CC1PLUS_SPEC as a spec.
332 %| output "-" if the input for the current command is coming from a pipe.
333 %* substitute the variable part of a matched option. (See below.)
334 Note that each comma in the substituted string is replaced by
336 %{S} substitutes the -S switch, if that switch was given to CC.
337 If that switch was not specified, this substitutes nothing.
338 Here S is a metasyntactic variable.
339 %{S*} substitutes all the switches specified to CC whose names start
340 with -S. This is used for -o, -D, -I, etc; switches that take
341 arguments. CC considers `-o foo' as being one switch whose
342 name starts with `o'. %{o*} would substitute this text,
343 including the space; thus, two arguments would be generated.
344 %{S*:X} substitutes X if one or more switches whose names start with -S are
345 specified to CC. Note that the tail part of the -S option
346 (i.e. the part matched by the `*') will be substituted for each
347 occurrence of %* within X.
348 %{S:X} substitutes X, but only if the -S switch was given to CC.
349 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
350 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
351 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
352 %{.S:X} substitutes X, but only if processing a file with suffix S.
353 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
354 %(Spec) processes a specification defined in a specs file as *Spec:
355 %[Spec] as above, but put __ around -D arguments
357 The conditional text X in a %{S:X} or %{!S:X} construct may contain
358 other nested % constructs or spaces, or even newlines. They are
359 processed as usual, as described above.
361 The -O, -f, -m, and -W switches are handled specifically in these
362 constructs. If another value of -O or the negated form of a -f, -m, or
363 -W switch is found later in the command line, the earlier switch
364 value is ignored, except with {S*} where S is just one letter; this
365 passes all matching options.
367 The character | is used to indicate that a command should be piped to
368 the following command, but only if -pipe is specified.
370 Note that it is built into CC which switches take arguments and which
371 do not. You might think it would be useful to generalize this to
372 allow each compiler's spec to say which switches take arguments. But
373 this cannot be done in a consistent fashion. CC cannot even decide
374 which input files have been specified without knowing which switches
375 take arguments, and it must know which input files to compile in order
376 to tell which compilers to run.
378 CC also knows implicitly that arguments starting in `-l' are to be
379 treated as compiler output files, and passed to the linker in their
380 proper position among the other output files. */
382 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
384 /* config.h can define ASM_SPEC to provide extra args to the assembler
385 or extra switch-translations. */
390 /* config.h can define ASM_FINAL_SPEC to run a post processor after
391 the assembler has run. */
392 #ifndef ASM_FINAL_SPEC
393 #define ASM_FINAL_SPEC ""
396 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
397 or extra switch-translations. */
402 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
403 or extra switch-translations. */
408 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
409 or extra switch-translations. */
411 #define CC1PLUS_SPEC ""
414 /* config.h can define LINK_SPEC to provide extra args to the linker
415 or extra switch-translations. */
420 /* config.h can define LIB_SPEC to override the default libraries. */
422 #define LIB_SPEC "%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
425 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
426 #ifndef STARTFILE_SPEC
427 #define STARTFILE_SPEC \
428 "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}"
431 /* config.h can define SWITCHES_NEED_SPACES to control passing -o and -L.
432 Make the string nonempty to require spaces there. */
433 #ifndef SWITCHES_NEED_SPACES
434 #define SWITCHES_NEED_SPACES ""
437 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
439 #define ENDFILE_SPEC ""
442 /* This spec is used for telling cpp whether char is signed or not. */
443 #ifndef SIGNED_CHAR_SPEC
444 /* Use #if rather than ?:
445 because MIPS C compiler rejects like ?: in initializers. */
446 #if DEFAULT_SIGNED_CHAR
447 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
449 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
453 /* MULTILIB_SELECT comes from multilib.h. It gives a
454 string interpreted by set_multilib_dir to select a library
455 subdirectory based on the compiler options. */
456 #ifndef MULTILIB_SELECT
457 #define MULTILIB_SELECT ". ;"
460 static char *cpp_spec = CPP_SPEC;
461 static char *cpp_predefines = CPP_PREDEFINES;
462 static char *cc1_spec = CC1_SPEC;
463 static char *cc1plus_spec = CC1PLUS_SPEC;
464 static char *signed_char_spec = SIGNED_CHAR_SPEC;
465 static char *asm_spec = ASM_SPEC;
466 static char *asm_final_spec = ASM_FINAL_SPEC;
467 static char *link_spec = LINK_SPEC;
468 static char *lib_spec = LIB_SPEC;
469 static char *endfile_spec = ENDFILE_SPEC;
470 static char *startfile_spec = STARTFILE_SPEC;
471 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
472 static char *multilib_select = MULTILIB_SELECT;
474 /* This defines which switch letters take arguments. */
476 #ifndef SWITCH_TAKES_ARG
477 #define SWITCH_TAKES_ARG(CHAR) \
478 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
479 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
480 || (CHAR) == 'I' || (CHAR) == 'm' \
481 || (CHAR) == 'L' || (CHAR) == 'A')
484 /* This defines which multi-letter switches take arguments. */
486 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
487 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
488 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
489 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
490 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
491 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
492 || !strcmp (STR, "isystem"))
494 #ifndef WORD_SWITCH_TAKES_ARG
495 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
498 /* Record the mapping from file suffixes for compilation specs. */
502 char *suffix; /* Use this compiler for input files
503 whose names end in this suffix. */
505 char *spec[4]; /* To use this compiler, concatenate these
506 specs and pass to do_spec. */
509 /* Pointer to a vector of `struct compiler' that gives the spec for
510 compiling a file, based on its suffix.
511 A file that does not end in any of these suffixes will be passed
512 unchanged to the loader and nothing else will be done to it.
514 An entry containing two 0s is used to terminate the vector.
516 If multiple entries match a file, the last matching one is used. */
518 static struct compiler *compilers;
520 /* Number of entries in `compilers', not counting the null terminator. */
522 static int n_compilers;
524 /* The default list of file name suffixes and their compilation specs. */
526 static struct compiler default_compilers[] =
530 "cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
531 %{C:%{!E:%eGNU C does not support -C without using -E}}\
532 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
533 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
534 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
535 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
536 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
537 %{traditional-cpp:-traditional}\
538 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
539 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
540 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
541 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a}\
542 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
543 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
545 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
546 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
547 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
548 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
549 %{!pipe:%g.s} %A\n }}}}"},
551 "%{E:cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
552 %{C:%{!E:%eGNU C does not support -C without using -E}}\
553 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
554 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
555 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
556 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
557 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
558 %{traditional-cpp:-traditional}\
559 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
561 %{!E:%e-E required when input is from standard input}"},
562 {".m", "@objective-c"},
564 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
565 %{C:%{!E:%eGNU C does not support -C without using -E}}\
566 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
567 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
568 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
569 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
570 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
571 %{traditional-cpp:-traditional}\
572 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
573 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
574 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
575 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a}\
576 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
577 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
578 -lang-objc %{gen-decls} \
580 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
581 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
582 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
583 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
584 %{!pipe:%g.s} %A\n }}}}"},
587 "%{!E:%eCompilation of header file requested} \
588 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
589 %{C:%{!E:%eGNU C does not support -C without using -E}}\
590 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
591 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
592 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
593 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
594 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
595 %{traditional-cpp:-traditional}\
596 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
603 "cpp -lang-c++ %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
604 %{C:%{!E:%eGNU C++ does not support -C without using -E}}\
605 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
606 -undef -D__GNUC__=%v1 -D__GNUG__=%v1 -D__cplusplus -D__GNUC_MINOR__=%v2\
607 %{ansi:-trigraphs -$ -D__STRICT_ANSI__} %{!undef:%{!ansi:%p} %P}\
608 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
609 %{traditional-cpp:-traditional} %{trigraphs}\
610 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
611 %i %{!M:%{!MM:%{!E:%{!pipe:%g.ii}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
612 "%{!M:%{!MM:%{!E:cc1plus %{!pipe:%g.ii} %1 %2\
613 %{!Q:-quiet} -dumpbase %b.cc %{d*} %{m*} %{a}\
614 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
615 %{traditional} %{v:-version} %{pg:-p} %{p}\
616 %{f*} %{+e*} %{aux-info*}\
617 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
618 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}}|\n\
619 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
620 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
621 %{!pipe:%g.s} %A\n }}}}"},
622 {".i", "@cpp-output"},
624 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
625 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
626 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
628 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
629 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
630 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
631 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
632 %{!pipe:%g.s} %A\n }}}}"},
633 {".ii", "@c++-cpp-output"},
635 "%{!M:%{!MM:%{!E:cc1plus %i %1 %2 %{!Q:-quiet} %{d*} %{m*} %{a}\
636 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
637 %{traditional} %{v:-version} %{pg:-p} %{p}\
638 %{f*} %{+e*} %{aux-info*}\
639 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
640 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
641 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
642 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
643 %{!pipe:%g.s} %A\n }}}}"},
644 {".s", "@assembler"},
646 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
647 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
649 {".S", "@assembler-with-cpp"},
650 {"@assembler-with-cpp",
651 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
652 %{C:%{!E:%eGNU C does not support -C without using -E}}\
653 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
654 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
655 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
656 %{traditional-cpp:-traditional}\
657 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
658 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
659 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
660 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
661 %{!pipe:%g.s} %A\n }}}}"},
666 "%{!M:%{!MM:%{!E:gnat1 %{k8:-gnatk8} %{w:-gnatws} %{!Q:-quiet}\
667 -dumpbase %b.ada %{g*} %{O*} %{p} %{pg:-p} %{f*}\
669 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
670 %i %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
671 %{!S:%{!gnatc:%{!gnats:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
672 %{c:%W{o*}%{!o*:-o %w%b.o}}\
673 %{!c:-o %d%w%u.o} %{!pipe:%g.s} %A\n}}}}}} "},
674 /* Mark end of table */
678 /* Number of elements in default_compilers, not counting the terminator. */
680 static int n_default_compilers
681 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
683 /* Here is the spec for running the linker, after compiling all files. */
685 /* -u* was put back because both BSD and SysV seem to support it. */
686 /* %{static:} simply prevents an error message if the target machine
687 doesn't handle -static. */
688 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
689 scripts which exist in user specified directories, or in standard
691 #ifdef LINK_LIBGCC_SPECIAL_1
692 /* Have gcc do the search for libgcc.a, but generate -L options as usual. */
693 static char *link_command_spec = "\
695 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
696 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
697 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
698 %{L*} %D %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
700 #ifdef LINK_LIBGCC_SPECIAL
701 /* Have gcc do the search for libgcc.a, and don't generate -L options. */
702 static char *link_command_spec = "\
704 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
705 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
706 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
707 %{L*} %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
709 /* Use -L and have the linker do the search for -lgcc. */
710 static char *link_command_spec = "\
712 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
713 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
714 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
715 %{L*} %D %{T*} %o %{!nostdlib:-lgcc %L -lgcc %{!A:%E}}\n }}}}}}";
719 /* A vector of options to give to the linker.
720 These options are accumulated by -Xlinker and -Wl,
721 and substituted into the linker command with %X. */
722 static int n_linker_options;
723 static char **linker_options;
725 /* A vector of options to give to the assembler.
726 These options are accumulated by -Wa,
727 and substituted into the assembler command with %X. */
728 static int n_assembler_options;
729 static char **assembler_options;
731 /* Define how to map long options into short ones. */
733 /* This structure describes one mapping. */
736 /* The long option's name. */
738 /* The equivalent short option. */
740 /* Argument info. A string of flag chars; NULL equals no options.
741 a => argument required.
742 o => argument optional.
743 j => join argument to equivalent, making one word.
744 * => allow other text after NAME as an argument. */
748 /* This is the table of mappings. Mappings are tried sequentially
749 for each option encountered; the first one that matches, wins. */
751 struct option_map option_map[] =
753 {"--profile-blocks", "-a", 0},
754 {"--target", "-b", "a"},
755 {"--compile", "-c", 0},
756 {"--dump", "-d", "a"},
757 {"--entry", "-e", 0},
758 {"--debug", "-g", "oj"},
759 {"--include", "-include", "a"},
760 {"--imacros", "-imacros", "a"},
761 {"--include-prefix", "-iprefix", "a"},
762 {"--include-directory-after", "-idirafter", "a"},
763 {"--include-with-prefix", "-iwithprefix", "a"},
764 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
765 {"--include-with-prefix-after", "-iwithprefix", "a"},
766 {"--machine-", "-m", "*j"},
767 {"--machine", "-m", "aj"},
768 {"--no-standard-includes", "-nostdinc", 0},
769 {"--no-standard-libraries", "-nostdlib", 0},
770 {"--no-precompiled-includes", "-noprecomp", 0},
771 {"--output", "-o", "a"},
772 {"--profile", "-p", 0},
773 {"--quiet", "-q", 0},
774 {"--silent", "-q", 0},
775 {"--force-link", "-u", "a"},
776 {"--verbose", "-v", 0},
777 {"--version", "-dumpversion", 0},
778 {"--no-warnings", "-w", 0},
779 {"--language", "-x", "a"},
781 {"--assert", "-A", "a"},
782 {"--prefix", "-B", "a"},
783 {"--comments", "-C", 0},
784 {"--define-macro", "-D", "a"},
785 {"--preprocess", "-E", 0},
786 {"--trace-includes", "-H", 0},
787 {"--include-directory", "-I", "a"},
788 {"--include-barrier", "-I-", 0},
789 {"--library-directory", "-L", "a"},
790 {"--dependencies", "-M", 0},
791 {"--user-dependencies", "-MM", 0},
792 {"--write-dependencies", "-MD", 0},
793 {"--write-user-dependencies", "-MMD", 0},
794 {"--print-missing-file-dependencies", "-MG", 0},
795 {"--optimize", "-O", "oj"},
796 {"--no-line-commands", "-P", 0},
797 {"--assemble", "-S", 0},
798 {"--undefine-macro", "-U", "a"},
799 {"--use-version", "-V", "a"},
800 {"--for-assembler", "-Wa", "a"},
801 {"--extra-warnings", "-W", 0},
802 {"--all-warnings", "-Wall", 0},
803 {"--warn-", "-W", "*j"},
804 {"--for-linker", "-Xlinker", "a"},
806 {"--ansi", "-ansi", 0},
807 {"--traditional", "-traditional", 0},
808 {"--traditional-cpp", "-traditional-cpp", 0},
809 {"--trigraphs", "-trigraphs", 0},
810 {"--pipe", "-pipe", 0},
811 {"--dumpbase", "-dumpbase", "a"},
812 {"--pedantic", "-pedantic", 0},
813 {"--pedantic-errors", "-pedantic-errors", 0},
814 {"--save-temps", "-save-temps", 0},
815 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
816 {"--print-file-name", "-print-file-name=", "aj"},
817 {"--print-prog-name", "-print-prog-name=", "aj"},
818 {"--print-multi-lib", "-print-multi-lib", 0},
819 {"--print-multi-directory", "-print-multi-directory", 0},
820 {"--static", "-static", 0},
821 {"--shared", "-shared", 0},
822 {"--symbolic", "-symbolic", 0},
826 /* Translate the options described by *ARGCP and *ARGVP.
827 Make a new vector and store it back in *ARGVP,
828 and store its length in *ARGVC. */
831 translate_options (argcp, argvp)
837 char **argv = *argvp;
838 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
842 newv[newindex++] = argv[i++];
846 /* Translate -- options. */
847 if (argv[i][0] == '-' && argv[i][1] == '-')
849 /* Find a mapping that applies to this option. */
850 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
852 int optlen = strlen (option_map[j].name);
853 int complen = strlen (argv[i]);
854 char *arginfo = option_map[j].arg_info;
858 if (complen > optlen)
860 if (!strncmp (argv[i], option_map[j].name, complen))
862 int extra = strlen (argv[i]) > optlen;
867 /* If the option has an argument, accept that. */
868 if (argv[i][optlen] == '=')
869 arg = argv[i] + optlen + 1;
870 /* If this mapping allows extra text at end of name,
871 accept that as "argument". */
872 else if (index (arginfo, '*') != 0)
873 arg = argv[i] + optlen;
874 /* Otherwise, extra text at end means mismatch.
875 Try other mappings. */
879 else if (index (arginfo, '*') != 0)
880 error ("Incomplete `%s' option", option_map[j].name);
882 /* Handle arguments. */
883 if (index (arginfo, 'o') != 0)
888 error ("Missing argument to `%s' option",
893 else if (index (arginfo, '*') != 0)
895 else if (index (arginfo, 'a') == 0)
898 error ("Extraneous argument to `%s' option",
903 /* Store the translation as one argv elt or as two. */
904 if (arg != 0 && index (arginfo, 'j') != 0)
905 newv[newindex++] = concat (option_map[j].equivalent,
909 newv[newindex++] = option_map[j].equivalent;
910 newv[newindex++] = arg;
913 newv[newindex++] = option_map[j].equivalent;
920 /* Handle old-fashioned options--just copy them through,
921 with their arguments. */
922 else if (argv[i][0] == '-')
924 char *p = argv[i] + 1;
928 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
929 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
930 else if (WORD_SWITCH_TAKES_ARG (p))
931 nskip += WORD_SWITCH_TAKES_ARG (p);
932 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
935 else if (! strcmp (p, "Xlinker"))
938 /* Watch out for an option at the end of the command line that
939 is missing arguments, and avoid skipping past the end of the
941 if (nskip + i > argc)
946 newv[newindex++] = argv[i++];
951 /* Ordinary operands, or +e options. */
952 newv[newindex++] = argv[i++];
961 /* Read compilation specs from a file named FILENAME,
962 replacing the default ones.
964 A suffix which starts with `*' is a definition for
965 one of the machine-specific sub-specs. The "suffix" should be
966 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
967 The corresponding spec is stored in asm_spec, etc.,
968 rather than in the `compilers' vector.
970 Anything invalid in the file is a fatal error. */
973 read_specs (filename)
982 fprintf (stderr, "Reading specs from %s\n", filename);
984 /* Open and stat the file. */
985 desc = open (filename, 0, 0);
987 pfatal_with_name (filename);
988 if (stat (filename, &statbuf) < 0)
989 pfatal_with_name (filename);
991 /* Read contents of file into BUFFER. */
992 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
993 read (desc, buffer, (unsigned) statbuf.st_size);
994 buffer[statbuf.st_size] = 0;
997 /* Scan BUFFER for specs, putting them in the vector. */
1003 char *in, *out, *p1, *p2;
1005 /* Advance P in BUFFER to the next nonblank nocomment line. */
1006 p = skip_whitespace (p);
1010 /* Find the colon that should end the suffix. */
1012 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
1013 /* The colon shouldn't be missing. */
1015 fatal ("specs file malformed after %d characters", p1 - buffer);
1016 /* Skip back over trailing whitespace. */
1018 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
1019 /* Copy the suffix to a string. */
1020 suffix = save_string (p, p2 - p);
1021 /* Find the next line. */
1022 p = skip_whitespace (p1 + 1);
1024 fatal ("specs file malformed after %d characters", p - buffer);
1026 /* Find next blank line. */
1027 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
1028 /* Specs end at the blank line and do not include the newline. */
1029 spec = save_string (p, p1 - p);
1032 /* Delete backslash-newline sequences from the spec. */
1037 if (in[0] == '\\' && in[1] == '\n')
1039 else if (in[0] == '#')
1041 while (*in && *in != '\n') in++;
1048 if (suffix[0] == '*')
1050 if (! strcmp (suffix, "*link_command"))
1051 link_command_spec = spec;
1053 set_spec (suffix + 1, spec);
1057 /* Add this pair to the vector. */
1059 = ((struct compiler *)
1060 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1061 compilers[n_compilers].suffix = suffix;
1062 bzero ((char *) compilers[n_compilers].spec,
1063 sizeof compilers[n_compilers].spec);
1064 compilers[n_compilers].spec[0] = spec;
1066 bzero ((char *) &compilers[n_compilers],
1067 sizeof compilers[n_compilers]);
1071 link_command_spec = spec;
1074 if (link_command_spec == 0)
1075 fatal ("spec file has no spec for linking");
1084 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1085 be considered whitespace. */
1086 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1088 else if (*p == '\n' || *p == ' ' || *p == '\t')
1092 while (*p != '\n') p++;
1102 /* Structure to keep track of the specs that have been defined so far. These
1103 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1107 char *name; /* Name of the spec. */
1108 char *spec; /* The spec itself. */
1109 struct spec_list *next; /* Next spec in linked list. */
1112 /* List of specs that have been defined so far. */
1114 static struct spec_list *specs = (struct spec_list *) 0;
1116 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1117 removed; If the spec starts with a + then SPEC is added to the end of the
1121 set_spec (name, spec)
1125 struct spec_list *sl;
1128 /* See if the spec already exists */
1129 for (sl = specs; sl; sl = sl->next)
1130 if (strcmp (sl->name, name) == 0)
1135 /* Not found - make it */
1136 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1137 sl->name = save_string (name, strlen (name));
1138 sl->spec = save_string ("", 0);
1143 old_spec = sl->spec;
1144 if (name && spec[0] == '+' && isspace (spec[1]))
1145 sl->spec = concat (old_spec, spec + 1, "");
1147 sl->spec = save_string (spec, strlen (spec));
1149 if (! strcmp (name, "asm"))
1150 asm_spec = sl->spec;
1151 else if (! strcmp (name, "asm_final"))
1152 asm_final_spec = sl->spec;
1153 else if (! strcmp (name, "cc1"))
1154 cc1_spec = sl->spec;
1155 else if (! strcmp (name, "cc1plus"))
1156 cc1plus_spec = sl->spec;
1157 else if (! strcmp (name, "cpp"))
1158 cpp_spec = sl->spec;
1159 else if (! strcmp (name, "endfile"))
1160 endfile_spec = sl->spec;
1161 else if (! strcmp (name, "lib"))
1162 lib_spec = sl->spec;
1163 else if (! strcmp (name, "link"))
1164 link_spec = sl->spec;
1165 else if (! strcmp (name, "predefines"))
1166 cpp_predefines = sl->spec;
1167 else if (! strcmp (name, "signed_char"))
1168 signed_char_spec = sl->spec;
1169 else if (! strcmp (name, "startfile"))
1170 startfile_spec = sl->spec;
1171 else if (! strcmp (name, "switches_need_spaces"))
1172 switches_need_spaces = sl->spec;
1173 else if (! strcmp (name, "cross_compile"))
1174 cross_compile = atoi (sl->spec);
1175 else if (! strcmp (name, "multilib"))
1176 multilib_select = sl->spec;
1177 /* Free the old spec */
1182 /* Accumulate a command (program name and args), and run it. */
1184 /* Vector of pointers to arguments in the current line of specifications. */
1186 static char **argbuf;
1188 /* Number of elements allocated in argbuf. */
1190 static int argbuf_length;
1192 /* Number of elements in argbuf currently in use (containing args). */
1194 static int argbuf_index;
1196 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1197 temp file. Used only if MKTEMP_EACH_FILE. */
1199 static struct temp_name {
1200 char *suffix; /* suffix associated with the code. */
1201 int length; /* strlen (suffix). */
1202 int unique; /* Indicates whether %g or %u/%U was used. */
1203 char *filename; /* associated filename. */
1204 int filename_length; /* strlen (filename). */
1205 struct temp_name *next;
1208 /* Number of commands executed so far. */
1210 static int execution_count;
1212 /* Number of commands that exited with a signal. */
1214 static int signal_count;
1216 /* Name with which this program was invoked. */
1218 static char *programname;
1220 /* Structures to keep track of prefixes to try when looking for files. */
1224 char *prefix; /* String to prepend to the path. */
1225 struct prefix_list *next; /* Next in linked list. */
1226 int require_machine_suffix; /* Don't use without machine_suffix. */
1227 /* 2 means try both machine_suffix and just_machine_suffix. */
1228 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1233 struct prefix_list *plist; /* List of prefixes to try */
1234 int max_len; /* Max length of a prefix in PLIST */
1235 char *name; /* Name of this list (used in config stuff) */
1238 /* List of prefixes to try when looking for executables. */
1240 static struct path_prefix exec_prefix = { 0, 0, "exec" };
1242 /* List of prefixes to try when looking for startup (crt0) files. */
1244 static struct path_prefix startfile_prefix = { 0, 0, "startfile" };
1246 /* List of prefixes to try when looking for include files. */
1248 static struct path_prefix include_prefix = { 0, 0, "include" };
1250 /* Suffix to attach to directories searched for commands.
1251 This looks like `MACHINE/VERSION/'. */
1253 static char *machine_suffix = 0;
1255 /* Suffix to attach to directories searched for commands.
1256 This is just `MACHINE/'. */
1258 static char *just_machine_suffix = 0;
1260 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1262 static char *gcc_exec_prefix;
1264 /* Default prefixes to attach to command names. */
1266 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1267 #undef MD_EXEC_PREFIX
1268 #undef MD_STARTFILE_PREFIX
1269 #undef MD_STARTFILE_PREFIX_1
1272 #ifndef STANDARD_EXEC_PREFIX
1273 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1274 #endif /* !defined STANDARD_EXEC_PREFIX */
1276 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1277 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1278 #ifdef MD_EXEC_PREFIX
1279 static char *md_exec_prefix = MD_EXEC_PREFIX;
1282 #ifndef STANDARD_STARTFILE_PREFIX
1283 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1284 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1286 #ifdef MD_STARTFILE_PREFIX
1287 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1289 #ifdef MD_STARTFILE_PREFIX_1
1290 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1292 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1293 static char *standard_startfile_prefix_1 = "/lib/";
1294 static char *standard_startfile_prefix_2 = "/usr/lib/";
1296 #ifndef TOOLDIR_BASE_PREFIX
1297 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1299 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1300 static char *tooldir_prefix;
1302 /* Subdirectory to use for locating libraries. Set by
1303 set_multilib_dir based on the compilation options. */
1305 static char *multilib_dir;
1307 /* Clear out the vector of arguments (after a command is executed). */
1315 /* Add one argument to the vector at the end.
1316 This is done when a space is seen or at the end of the line.
1317 If DELETE_ALWAYS is nonzero, the arg is a filename
1318 and the file should be deleted eventually.
1319 If DELETE_FAILURE is nonzero, the arg is a filename
1320 and the file should be deleted if this compilation fails. */
1323 store_arg (arg, delete_always, delete_failure)
1325 int delete_always, delete_failure;
1327 if (argbuf_index + 1 == argbuf_length)
1329 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1332 argbuf[argbuf_index++] = arg;
1333 argbuf[argbuf_index] = 0;
1335 if (delete_always || delete_failure)
1336 record_temp_file (arg, delete_always, delete_failure);
1339 /* Record the names of temporary files we tell compilers to write,
1340 and delete them at the end of the run. */
1342 /* This is the common prefix we use to make temp file names.
1343 It is chosen once for each run of this program.
1344 It is substituted into a spec by %g.
1345 Thus, all temp file names contain this prefix.
1346 In practice, all temp file names start with this prefix.
1348 This prefix comes from the envvar TMPDIR if it is defined;
1349 otherwise, from the P_tmpdir macro if that is defined;
1350 otherwise, in /usr/tmp or /tmp. */
1352 static char *temp_filename;
1354 /* Length of the prefix. */
1356 static int temp_filename_length;
1358 /* Define the list of temporary files to delete. */
1363 struct temp_file *next;
1366 /* Queue of files to delete on success or failure of compilation. */
1367 static struct temp_file *always_delete_queue;
1368 /* Queue of files to delete on failure of compilation. */
1369 static struct temp_file *failure_delete_queue;
1371 /* Record FILENAME as a file to be deleted automatically.
1372 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1373 otherwise delete it in any case.
1374 FAIL_DELETE nonzero means delete it if a compilation step fails;
1375 otherwise delete it in any case. */
1378 record_temp_file (filename, always_delete, fail_delete)
1383 register char *name;
1384 name = xmalloc (strlen (filename) + 1);
1385 strcpy (name, filename);
1389 register struct temp_file *temp;
1390 for (temp = always_delete_queue; temp; temp = temp->next)
1391 if (! strcmp (name, temp->name))
1393 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1394 temp->next = always_delete_queue;
1396 always_delete_queue = temp;
1402 register struct temp_file *temp;
1403 for (temp = failure_delete_queue; temp; temp = temp->next)
1404 if (! strcmp (name, temp->name))
1406 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1407 temp->next = failure_delete_queue;
1409 failure_delete_queue = temp;
1414 /* Delete all the temporary files whose names we previously recorded. */
1417 delete_if_ordinary (name)
1424 printf ("Delete %s? (y or n) ", name);
1428 while ((c = getchar ()) != '\n' && c != EOF) ;
1429 if (i == 'y' || i == 'Y')
1431 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1432 if (unlink (name) < 0)
1434 perror_with_name (name);
1438 delete_temp_files ()
1440 register struct temp_file *temp;
1442 for (temp = always_delete_queue; temp; temp = temp->next)
1443 delete_if_ordinary (temp->name);
1444 always_delete_queue = 0;
1447 /* Delete all the files to be deleted on error. */
1450 delete_failure_queue ()
1452 register struct temp_file *temp;
1454 for (temp = failure_delete_queue; temp; temp = temp->next)
1455 delete_if_ordinary (temp->name);
1459 clear_failure_queue ()
1461 failure_delete_queue = 0;
1464 /* Compute a string to use as the base of all temporary file names.
1465 It is substituted for %g. */
1468 choose_temp_base_try (try, base)
1475 else if (try == (char *)0)
1477 else if (access (try, R_OK | W_OK) != 0)
1490 base = choose_temp_base_try (getenv ("TMPDIR"), base);
1491 base = choose_temp_base_try (getenv ("TMP"), base);
1492 base = choose_temp_base_try (getenv ("TEMP"), base);
1495 base = choose_temp_base_try (P_tmpdir, base);
1498 base = choose_temp_base_try ("/usr/tmp", base);
1499 base = choose_temp_base_try ("/tmp", base);
1501 /* If all else fails, use the current directory! */
1502 if (base == (char *)0)
1505 len = strlen (base);
1506 temp_filename = xmalloc (len + sizeof("/ccXXXXXX") + 1);
1507 strcpy (temp_filename, base);
1508 if (len > 0 && temp_filename[len-1] != '/')
1509 temp_filename[len++] = '/';
1510 strcpy (temp_filename + len, "ccXXXXXX");
1512 mktemp (temp_filename);
1513 temp_filename_length = strlen (temp_filename);
1514 if (temp_filename_length == 0)
1519 /* Routine to add variables to the environment. We do this to pass
1520 the pathname of the gcc driver, and the directories search to the
1521 collect2 program, which is being run as ld. This way, we can be
1522 sure of executing the right compiler when collect2 wants to build
1523 constructors and destructors. Since the environment variables we
1524 use come from an obstack, we don't have to worry about allocating
1533 #ifndef VMS /* nor about VMS */
1535 extern char **environ;
1536 char **old_environ = environ;
1540 int str_len = strlen (str);
1544 while ((ch = *p++) != '\0' && ch != '=')
1550 /* Search for replacing an existing environment variable, and
1551 count the number of total environment variables. */
1552 for (envp = old_environ; *envp; envp++)
1555 if (!strncmp (str, *envp, name_len))
1562 /* Add a new environment variable */
1563 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1565 bcopy ((char *) old_environ, (char *) (environ + 1),
1566 sizeof (char *) * (num_envs+1));
1571 #endif /* HAVE_PUTENV */
1574 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1577 putenv_from_prefixes (paths, env_var)
1578 struct path_prefix *paths;
1581 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1583 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1584 int first_time = TRUE;
1585 struct prefix_list *pprefix;
1587 obstack_grow (&collect_obstack, env_var, strlen (env_var));
1589 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1591 int len = strlen (pprefix->prefix);
1594 && is_directory (pprefix->prefix, machine_suffix, 0))
1597 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1600 obstack_grow (&collect_obstack, pprefix->prefix, len);
1601 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1604 if (just_machine_suffix
1605 && pprefix->require_machine_suffix == 2
1606 && is_directory (pprefix->prefix, just_machine_suffix, 0))
1609 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1612 obstack_grow (&collect_obstack, pprefix->prefix, len);
1613 obstack_grow (&collect_obstack, just_machine_suffix,
1617 if (!pprefix->require_machine_suffix)
1620 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1623 obstack_grow (&collect_obstack, pprefix->prefix, len);
1626 obstack_1grow (&collect_obstack, '\0');
1627 putenv (obstack_finish (&collect_obstack));
1631 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1632 access to check permissions.
1633 Return 0 if not found, otherwise return its name, allocated with malloc. */
1636 find_a_file (pprefix, name, mode)
1637 struct path_prefix *pprefix;
1642 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1643 struct prefix_list *pl;
1644 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1647 len += strlen (machine_suffix);
1649 temp = xmalloc (len);
1651 /* Determine the filename to execute (special case for absolute paths). */
1655 if (access (name, mode))
1657 strcpy (temp, name);
1662 for (pl = pprefix->plist; pl; pl = pl->next)
1666 /* Some systems have a suffix for executable files.
1667 So try appending that first. */
1668 if (file_suffix[0] != 0)
1670 strcpy (temp, pl->prefix);
1671 strcat (temp, machine_suffix);
1672 strcat (temp, name);
1673 strcat (temp, file_suffix);
1674 if (access (temp, mode) == 0)
1676 if (pl->used_flag_ptr != 0)
1677 *pl->used_flag_ptr = 1;
1682 /* Now try just the name. */
1683 strcpy (temp, pl->prefix);
1684 strcat (temp, machine_suffix);
1685 strcat (temp, name);
1686 if (access (temp, mode) == 0)
1688 if (pl->used_flag_ptr != 0)
1689 *pl->used_flag_ptr = 1;
1694 /* Certain prefixes are tried with just the machine type,
1695 not the version. This is used for finding as, ld, etc. */
1696 if (just_machine_suffix && pl->require_machine_suffix == 2)
1698 /* Some systems have a suffix for executable files.
1699 So try appending that first. */
1700 if (file_suffix[0] != 0)
1702 strcpy (temp, pl->prefix);
1703 strcat (temp, just_machine_suffix);
1704 strcat (temp, name);
1705 strcat (temp, file_suffix);
1706 if (access (temp, mode) == 0)
1708 if (pl->used_flag_ptr != 0)
1709 *pl->used_flag_ptr = 1;
1714 strcpy (temp, pl->prefix);
1715 strcat (temp, just_machine_suffix);
1716 strcat (temp, name);
1717 if (access (temp, mode) == 0)
1719 if (pl->used_flag_ptr != 0)
1720 *pl->used_flag_ptr = 1;
1725 /* Certain prefixes can't be used without the machine suffix
1726 when the machine or version is explicitly specified. */
1727 if (!pl->require_machine_suffix)
1729 /* Some systems have a suffix for executable files.
1730 So try appending that first. */
1731 if (file_suffix[0] != 0)
1733 strcpy (temp, pl->prefix);
1734 strcat (temp, name);
1735 strcat (temp, file_suffix);
1736 if (access (temp, mode) == 0)
1738 if (pl->used_flag_ptr != 0)
1739 *pl->used_flag_ptr = 1;
1744 strcpy (temp, pl->prefix);
1745 strcat (temp, name);
1746 if (access (temp, mode) == 0)
1748 if (pl->used_flag_ptr != 0)
1749 *pl->used_flag_ptr = 1;
1759 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1760 at the start of the list, otherwise it goes at the end.
1762 If WARN is nonzero, we will warn if no file is found
1763 through this prefix. WARN should point to an int
1764 which will be set to 1 if this entry is used.
1766 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1767 the complete value of machine_suffix.
1768 2 means try both machine_suffix and just_machine_suffix. */
1771 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1772 struct path_prefix *pprefix;
1775 int require_machine_suffix;
1778 struct prefix_list *pl, **prev;
1781 if (!first && pprefix->plist)
1783 for (pl = pprefix->plist; pl->next; pl = pl->next)
1788 prev = &pprefix->plist;
1790 /* Keep track of the longest prefix */
1792 len = strlen (prefix);
1793 if (len > pprefix->max_len)
1794 pprefix->max_len = len;
1796 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1797 pl->prefix = save_string (prefix, len);
1798 pl->require_machine_suffix = require_machine_suffix;
1799 pl->used_flag_ptr = warn;
1806 pl->next = (struct prefix_list *) 0;
1810 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1813 unused_prefix_warnings (pprefix)
1814 struct path_prefix *pprefix;
1816 struct prefix_list *pl = pprefix->plist;
1820 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1822 error ("file path prefix `%s' never used",
1824 /* Prevent duplicate warnings. */
1825 *pl->used_flag_ptr = 1;
1831 /* Get rid of all prefixes built up so far in *PLISTP. */
1834 free_path_prefix (pprefix)
1835 struct path_prefix *pprefix;
1837 struct prefix_list *pl = pprefix->plist;
1838 struct prefix_list *temp;
1844 free (temp->prefix);
1845 free ((char *) temp);
1847 pprefix->plist = (struct prefix_list *) 0;
1850 /* stdin file number. */
1851 #define STDIN_FILE_NO 0
1853 /* stdout file number. */
1854 #define STDOUT_FILE_NO 1
1856 /* value of `pipe': port index for reading. */
1859 /* value of `pipe': port index for writing. */
1860 #define WRITE_PORT 1
1862 /* Pipe waiting from last process, to be used as input for the next one.
1863 Value is STDIN_FILE_NO if no pipe is waiting
1864 (i.e. the next command is the first of a group). */
1866 static int last_pipe_input;
1868 /* Fork one piped subcommand. FUNC is the system call to use
1869 (either execv or execvp). ARGV is the arg vector to use.
1870 NOT_LAST is nonzero if this is not the last subcommand
1871 (i.e. its output should be piped to the next one.) */
1876 /* Declare these to avoid compilation error. They won't be called. */
1877 int execv(const char *a, const char **b){}
1878 int execvp(const char *a, const char **b){}
1881 pexecute (search_flag, program, argv, not_last)
1889 int i, el = search_flag ? 0 : 4;
1891 scmd = (char *)malloc (strlen (program) + strlen (temp_filename) + 6 + el);
1892 rf = scmd + strlen(program) + 2 + el;
1893 sprintf (scmd, "%s%s @%s.gp", program,
1894 (search_flag ? "" : ".exe"), temp_filename);
1895 argfile = fopen (rf, "w");
1897 pfatal_with_name (rf);
1899 for (i=1; argv[i]; i++)
1902 for (cp = argv[i]; *cp; cp++)
1904 if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp))
1905 fputc ('\\', argfile);
1906 fputc (*cp, argfile);
1908 fputc ('\n', argfile);
1918 perror_exec (program);
1919 return MIN_FATAL_STATUS << 8;
1925 #else /* not __MSDOS__ */
1928 pexecute (search_flag, program, argv, not_last)
1934 int (*func)() = (search_flag ? execv : execvp);
1937 int input_desc = last_pipe_input;
1938 int output_desc = STDOUT_FILE_NO;
1939 int retries, sleep_interval;
1941 /* If this isn't the last process, make a pipe for its output,
1942 and record it as waiting to be the input to the next process. */
1946 if (pipe (pdes) < 0)
1947 pfatal_with_name ("pipe");
1948 output_desc = pdes[WRITE_PORT];
1949 last_pipe_input = pdes[READ_PORT];
1952 last_pipe_input = STDIN_FILE_NO;
1954 /* Fork a subprocess; wait and retry if it fails. */
1956 for (retries = 0; retries < 4; retries++)
1961 sleep (sleep_interval);
1962 sleep_interval *= 2;
1969 pfatal_with_name ("fork");
1971 pfatal_with_name ("vfork");
1977 /* Move the input and output pipes into place, if nec. */
1978 if (input_desc != STDIN_FILE_NO)
1980 close (STDIN_FILE_NO);
1984 if (output_desc != STDOUT_FILE_NO)
1986 close (STDOUT_FILE_NO);
1988 close (output_desc);
1991 /* Close the parent's descs that aren't wanted here. */
1992 if (last_pipe_input != STDIN_FILE_NO)
1993 close (last_pipe_input);
1995 /* Exec the program. */
1996 (*func) (program, argv);
1997 perror_exec (program);
2003 /* In the parent, after forking.
2004 Close the descriptors that we made for this child. */
2005 if (input_desc != STDIN_FILE_NO)
2007 if (output_desc != STDOUT_FILE_NO)
2008 close (output_desc);
2010 /* Return child's process number. */
2015 #endif /* not __MSDOS__ */
2019 pexecute (search_flag, program, argv, not_last)
2025 return (search_flag ? spawnv : spawnvp) (1, program, argv);
2027 #endif /* not OS2 */
2029 /* Execute the command specified by the arguments on the current line of spec.
2030 When using pipes, this includes several piped-together commands
2031 with `|' between them.
2033 Return 0 if successful, -1 if failed. */
2039 int n_commands; /* # of command. */
2043 char *prog; /* program name. */
2044 char **argv; /* vector of args. */
2045 int pid; /* pid of process for this command. */
2048 struct command *commands; /* each command buffer with above info. */
2050 /* Count # of piped commands. */
2051 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2052 if (strcmp (argbuf[i], "|") == 0)
2055 /* Get storage for each command. */
2057 = (struct command *) alloca (n_commands * sizeof (struct command));
2059 /* Split argbuf into its separate piped processes,
2060 and record info about each one.
2061 Also search for the programs that are to be run. */
2063 commands[0].prog = argbuf[0]; /* first command. */
2064 commands[0].argv = &argbuf[0];
2065 string = find_a_file (&exec_prefix, commands[0].prog, X_OK);
2067 commands[0].argv[0] = string;
2069 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2070 if (strcmp (argbuf[i], "|") == 0)
2071 { /* each command. */
2073 fatal ("-pipe not supported under MS-DOS");
2075 argbuf[i] = 0; /* termination of command args. */
2076 commands[n_commands].prog = argbuf[i + 1];
2077 commands[n_commands].argv = &argbuf[i + 1];
2078 string = find_a_file (&exec_prefix, commands[n_commands].prog, X_OK);
2080 commands[n_commands].argv[0] = string;
2084 argbuf[argbuf_index] = 0;
2086 /* If -v, print what we are about to do, and maybe query. */
2090 /* Print each piped command as a separate line. */
2091 for (i = 0; i < n_commands ; i++)
2095 for (j = commands[i].argv; *j; j++)
2096 fprintf (stderr, " %s", *j);
2098 /* Print a pipe symbol after all but the last command. */
2099 if (i + 1 != n_commands)
2100 fprintf (stderr, " |");
2101 fprintf (stderr, "\n");
2105 fprintf (stderr, "\nGo ahead? (y or n) ");
2109 while (getchar () != '\n') ;
2110 if (i != 'y' && i != 'Y')
2115 /* Run each piped subprocess. */
2117 last_pipe_input = STDIN_FILE_NO;
2118 for (i = 0; i < n_commands; i++)
2120 char *string = commands[i].argv[0];
2122 commands[i].pid = pexecute (string != commands[i].prog,
2123 string, commands[i].argv,
2124 i + 1 < n_commands);
2126 if (string != commands[i].prog)
2132 /* Wait for all the subprocesses to finish.
2133 We don't care what order they finish in;
2134 we know that N_COMMANDS waits will get them all. */
2139 for (i = 0; i < n_commands; i++)
2143 char *prog = "unknown";
2146 status = pid = commands[i].pid;
2148 pid = wait (&status);
2156 for (j = 0; j < n_commands; j++)
2157 if (commands[j].pid == pid)
2158 prog = commands[j].prog;
2160 if ((status & 0x7F) != 0)
2162 fatal ("Internal compiler error: program %s got fatal signal %d",
2163 prog, (status & 0x7F));
2166 if (((status & 0xFF00) >> 8) >= MIN_FATAL_STATUS)
2174 /* Find all the switches given to us
2175 and make a vector describing them.
2176 The elements of the vector are strings, one per switch given.
2177 If a switch uses following arguments, then the `part1' field
2178 is the switch itself and the `args' field
2179 is a null-terminated vector containing the following arguments.
2180 The `live_cond' field is 1 if the switch is true in a conditional spec,
2181 -1 if false (overridden by a later switch), and is initialized to zero.
2182 The `valid' field is nonzero if any spec has looked at this switch;
2183 if it remains zero at the end of the run, it must be meaningless. */
2193 static struct switchstr *switches;
2195 static int n_switches;
2203 /* Also a vector of input files specified. */
2205 static struct infile *infiles;
2207 static int n_infiles;
2209 /* And a vector of corresponding output files is made up later. */
2211 static char **outfiles;
2213 /* Create the vector `switches' and its contents.
2214 Store its length in `n_switches'. */
2217 process_command (argc, argv)
2223 char *spec_lang = 0;
2224 int last_language_n_infiles;
2226 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2231 /* Figure compiler version from version string. */
2233 compiler_version = save_string (version_string, strlen (version_string));
2234 for (temp = compiler_version; *temp; ++temp)
2243 /* Set up the default search paths. */
2245 if (gcc_exec_prefix)
2247 add_prefix (&exec_prefix, gcc_exec_prefix, 0, 0, NULL_PTR);
2248 add_prefix (&startfile_prefix, gcc_exec_prefix, 0, 0, NULL_PTR);
2251 /* COMPILER_PATH and LIBRARY_PATH have values
2252 that are lists of directory names with colons. */
2254 temp = getenv ("COMPILER_PATH");
2257 char *startp, *endp;
2258 char *nstore = (char *) alloca (strlen (temp) + 3);
2260 startp = endp = temp;
2263 if (*endp == PATH_SEPARATOR || *endp == 0)
2265 strncpy (nstore, startp, endp-startp);
2268 strcpy (nstore, "./");
2270 else if (endp[-1] != '/')
2272 nstore[endp-startp] = '/';
2273 nstore[endp-startp+1] = 0;
2276 nstore[endp-startp] = 0;
2277 add_prefix (&exec_prefix, nstore, 0, 0, NULL_PTR);
2280 endp = startp = endp + 1;
2287 temp = getenv ("LIBRARY_PATH");
2290 char *startp, *endp;
2291 char *nstore = (char *) alloca (strlen (temp) + 3);
2293 startp = endp = temp;
2296 if (*endp == PATH_SEPARATOR || *endp == 0)
2298 strncpy (nstore, startp, endp-startp);
2301 strcpy (nstore, "./");
2303 else if (endp[-1] != '/')
2305 nstore[endp-startp] = '/';
2306 nstore[endp-startp+1] = 0;
2309 nstore[endp-startp] = 0;
2310 add_prefix (&startfile_prefix, nstore, 0, 0, NULL_PTR);
2313 endp = startp = endp + 1;
2320 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2321 temp = getenv ("LPATH");
2324 char *startp, *endp;
2325 char *nstore = (char *) alloca (strlen (temp) + 3);
2327 startp = endp = temp;
2330 if (*endp == PATH_SEPARATOR || *endp == 0)
2332 strncpy (nstore, startp, endp-startp);
2335 strcpy (nstore, "./");
2337 else if (endp[-1] != '/')
2339 nstore[endp-startp] = '/';
2340 nstore[endp-startp+1] = 0;
2343 nstore[endp-startp] = 0;
2344 add_prefix (&startfile_prefix, nstore, 0, 0, NULL_PTR);
2347 endp = startp = endp + 1;
2354 /* Convert new-style -- options to old-style. */
2355 translate_options (&argc, &argv);
2357 /* Scan argv twice. Here, the first time, just count how many switches
2358 there will be in their vector, and how many input files in theirs.
2359 Here we also parse the switches that cc itself uses (e.g. -v). */
2361 for (i = 1; i < argc; i++)
2363 if (! strcmp (argv[i], "-dumpspecs"))
2365 printf ("*asm:\n%s\n\n", asm_spec);
2366 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2367 printf ("*cpp:\n%s\n\n", cpp_spec);
2368 printf ("*cc1:\n%s\n\n", cc1_spec);
2369 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2370 printf ("*endfile:\n%s\n\n", endfile_spec);
2371 printf ("*link:\n%s\n\n", link_spec);
2372 printf ("*lib:\n%s\n\n", lib_spec);
2373 printf ("*startfile:\n%s\n\n", startfile_spec);
2374 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2375 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2376 printf ("*predefines:\n%s\n\n", cpp_predefines);
2377 printf ("*cross_compile:\n%d\n\n", cross_compile);
2378 printf ("*multilib:\n%s\n\n", multilib_select);
2382 else if (! strcmp (argv[i], "-dumpversion"))
2384 printf ("%s\n", version_string);
2387 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2388 print_file_name = "libgcc.a";
2389 else if (! strncmp (argv[i], "-print-file-name=", 17))
2390 print_file_name = argv[i] + 17;
2391 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2392 print_prog_name = argv[i] + 17;
2393 else if (! strcmp (argv[i], "-print-multi-lib"))
2394 print_multi_lib = 1;
2395 else if (! strcmp (argv[i], "-print-multi-directory"))
2396 print_multi_directory = 1;
2397 else if (! strcmp (argv[i], "-Xlinker"))
2399 /* Pass the argument of this option to the linker when we link. */
2402 fatal ("argument to `-Xlinker' is missing");
2405 if (!linker_options)
2407 = (char **) xmalloc (n_linker_options * sizeof (char **));
2410 = (char **) xrealloc (linker_options,
2411 n_linker_options * sizeof (char **));
2413 linker_options[n_linker_options - 1] = argv[++i];
2415 else if (! strncmp (argv[i], "-Wl,", 4))
2418 /* Pass the rest of this option to the linker when we link. */
2421 if (!linker_options)
2423 = (char **) xmalloc (n_linker_options * sizeof (char **));
2426 = (char **) xrealloc (linker_options,
2427 n_linker_options * sizeof (char **));
2429 /* Split the argument at commas. */
2431 for (j = 4; argv[i][j]; j++)
2432 if (argv[i][j] == ',')
2434 linker_options[n_linker_options - 1]
2435 = save_string (argv[i] + prev, j - prev);
2438 = (char **) xrealloc (linker_options,
2439 n_linker_options * sizeof (char **));
2442 /* Record the part after the last comma. */
2443 linker_options[n_linker_options - 1] = argv[i] + prev;
2445 else if (! strncmp (argv[i], "-Wa,", 4))
2448 /* Pass the rest of this option to the assembler. */
2450 n_assembler_options++;
2451 if (!assembler_options)
2453 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2456 = (char **) xrealloc (assembler_options,
2457 n_assembler_options * sizeof (char **));
2459 /* Split the argument at commas. */
2461 for (j = 4; argv[i][j]; j++)
2462 if (argv[i][j] == ',')
2464 assembler_options[n_assembler_options - 1]
2465 = save_string (argv[i] + prev, j - prev);
2466 n_assembler_options++;
2468 = (char **) xrealloc (assembler_options,
2469 n_assembler_options * sizeof (char **));
2472 /* Record the part after the last comma. */
2473 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2475 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2476 /* The +e options to the C++ front-end. */
2478 else if (argv[i][0] == '-' && argv[i][1] != 0 && argv[i][1] != 'l')
2480 register char *p = &argv[i][1];
2481 register int c = *p;
2486 if (p[1] == 0 && i + 1 == argc)
2487 fatal ("argument to `-b' is missing");
2489 spec_machine = argv[++i];
2491 spec_machine = p + 1;
2496 int *temp = (int *) xmalloc (sizeof (int));
2498 if (p[1] == 0 && i + 1 == argc)
2499 fatal ("argument to `-B' is missing");
2504 add_prefix (&exec_prefix, value, 1, 0, temp);
2505 add_prefix (&startfile_prefix, value, 1, 0, temp);
2506 add_prefix (&include_prefix, concat (value, "include", ""),
2509 /* As a kludge, if the arg is "[foo/]stageN/", just add
2510 "[foo/]stageN/../include" to the include prefix. */
2512 int len = strlen (value);
2513 if ((len == 7 || (len > 7 && value[len - 8] == '/'))
2514 && strncmp (value + len - 7, "stage", 5) == 0
2515 && isdigit (value[len - 2])
2516 && value[len - 1] == '/')
2517 add_prefix (&include_prefix,
2518 concat (value, "../include", ""), 1, 0, 0);
2523 case 'v': /* Print our subcommands and print versions. */
2525 /* If they do anything other than exactly `-v', don't set
2526 verbose_flag; rather, continue on to give the error. */
2533 if (p[1] == 0 && i + 1 == argc)
2534 fatal ("argument to `-V' is missing");
2536 spec_version = argv[++i];
2538 spec_version = p + 1;
2539 compiler_version = spec_version;
2543 if (!strcmp (p, "save-temps"))
2545 save_temps_flag = 1;
2552 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2553 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2554 else if (WORD_SWITCH_TAKES_ARG (p))
2555 i += WORD_SWITCH_TAKES_ARG (p);
2562 /* Set up the search paths before we go looking for config files. */
2564 /* These come before the md prefixes so that we will find gcc's subcommands
2565 (such as cpp) rather than those of the host system. */
2566 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2567 as well as trying the machine and the version. */
2568 add_prefix (&exec_prefix, standard_exec_prefix, 0, 2, NULL_PTR);
2569 add_prefix (&exec_prefix, standard_exec_prefix_1, 0, 2, NULL_PTR);
2571 add_prefix (&startfile_prefix, standard_exec_prefix, 0, 1, NULL_PTR);
2572 add_prefix (&startfile_prefix, standard_exec_prefix_1, 0, 1, NULL_PTR);
2574 tooldir_prefix = concat (tooldir_base_prefix, spec_machine, "/");
2576 /* If tooldir is relative, base it on exec_prefix. A relative
2577 tooldir lets us move the installed tree as a unit.
2579 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2580 directories, so that we can search both the user specified directory
2581 and the standard place. */
2583 if (*tooldir_prefix != '/')
2585 if (gcc_exec_prefix)
2587 char *gcc_exec_tooldir_prefix
2588 = concat (concat (gcc_exec_prefix, spec_machine, "/"),
2589 concat (spec_version, "/", tooldir_prefix),
2592 add_prefix (&exec_prefix, concat (gcc_exec_tooldir_prefix, "bin", "/"),
2594 add_prefix (&startfile_prefix, concat (gcc_exec_tooldir_prefix, "lib", "/"),
2598 tooldir_prefix = concat (concat (standard_exec_prefix, spec_machine, "/"),
2599 concat (spec_version, "/", tooldir_prefix),
2603 add_prefix (&exec_prefix, concat (tooldir_prefix, "bin", "/"),
2605 add_prefix (&startfile_prefix, concat (tooldir_prefix, "lib", "/"),
2608 /* More prefixes are enabled in main, after we read the specs file
2609 and determine whether this is cross-compilation or not. */
2612 /* Then create the space for the vectors and scan again. */
2614 switches = ((struct switchstr *)
2615 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2616 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2619 last_language_n_infiles = -1;
2621 /* This, time, copy the text of each switch and store a pointer
2622 to the copy in the vector of switches.
2623 Store all the infiles in their vector. */
2625 for (i = 1; i < argc; i++)
2627 /* Just skip the switches that were handled by the preceding loop. */
2628 if (!strcmp (argv[i], "-Xlinker"))
2630 else if (! strncmp (argv[i], "-Wl,", 4))
2632 else if (! strncmp (argv[i], "-Wa,", 4))
2634 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2636 else if (! strncmp (argv[i], "-print-file-name=", 17))
2638 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2640 else if (! strcmp (argv[i], "-print-multi-lib"))
2642 else if (! strcmp (argv[i], "-print-multi-directory"))
2644 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2646 /* Compensate for the +e options to the C++ front-end;
2647 they're there simply for cfront call-compatibility. We do
2648 some magic in default_compilers to pass them down properly.
2649 Note we deliberately start at the `+' here, to avoid passing
2650 -e0 or -e1 down into the linker. */
2651 switches[n_switches].part1 = &argv[i][0];
2652 switches[n_switches].args = 0;
2653 switches[n_switches].live_cond = 0;
2654 switches[n_switches].valid = 0;
2657 else if (argv[i][0] == '-' && argv[i][1] != 0 && argv[i][1] != 'l')
2659 register char *p = &argv[i][1];
2660 register int c = *p;
2662 if (c == 'B' || c == 'b' || c == 'V')
2664 /* Skip a separate arg, if any. */
2671 if (p[1] == 0 && i + 1 == argc)
2672 fatal ("argument to `-x' is missing");
2674 spec_lang = argv[++i];
2677 if (! strcmp (spec_lang, "none"))
2678 /* Suppress the warning if -xnone comes after the last input file,
2679 because alternate command interfaces like g++ might find it
2680 useful to place -xnone after each input file. */
2683 last_language_n_infiles = n_infiles;
2686 switches[n_switches].part1 = p;
2687 /* Deal with option arguments in separate argv elements. */
2688 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2689 || WORD_SWITCH_TAKES_ARG (p))
2692 int n_args = WORD_SWITCH_TAKES_ARG (p);
2696 /* Count only the option arguments in separate argv elements. */
2697 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2699 if (i + n_args >= argc)
2700 fatal ("argument to `-%s' is missing", p);
2701 switches[n_switches].args
2702 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2704 switches[n_switches].args[j++] = argv[++i];
2705 /* Null-terminate the vector. */
2706 switches[n_switches].args[j] = 0;
2708 else if (*switches_need_spaces != 0 && (c == 'o' || c == 'L'))
2710 /* On some systems, ld cannot handle -o or -L without space.
2711 So split the -o or -L from its argument. */
2712 switches[n_switches].part1 = (c == 'o' ? "o" : "L");
2713 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2714 switches[n_switches].args[0] = xmalloc (strlen (p));
2715 strcpy (switches[n_switches].args[0], &p[1]);
2716 switches[n_switches].args[1] = 0;
2719 switches[n_switches].args = 0;
2721 switches[n_switches].live_cond = 0;
2722 switches[n_switches].valid = 0;
2723 /* This is always valid, since gcc.c itself understands it. */
2724 if (!strcmp (p, "save-temps"))
2725 switches[n_switches].valid = 1;
2730 if ((argv[i][0] != '-' || argv[i][1] != 'l')
2731 && strcmp (argv[i], "-")
2732 && access (argv[i], R_OK) < 0)
2734 perror_with_name (argv[i]);
2739 infiles[n_infiles].language = spec_lang;
2740 infiles[n_infiles++].name = argv[i];
2745 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2746 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2748 switches[n_switches].part1 = 0;
2749 infiles[n_infiles].name = 0;
2751 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
2752 if (gcc_exec_prefix)
2754 temp = (char *) xmalloc (strlen (gcc_exec_prefix) + strlen (spec_version)
2755 + strlen (spec_machine) + 3);
2756 strcpy (temp, gcc_exec_prefix);
2757 strcat (temp, spec_machine);
2759 strcat (temp, spec_version);
2761 gcc_exec_prefix = temp;
2765 /* Process a spec string, accumulating and running commands. */
2767 /* These variables describe the input file name.
2768 input_file_number is the index on outfiles of this file,
2769 so that the output file name can be stored for later use by %o.
2770 input_basename is the start of the part of the input file
2771 sans all directory names, and basename_length is the number
2772 of characters starting there excluding the suffix .c or whatever. */
2774 static char *input_filename;
2775 static int input_file_number;
2776 static int input_filename_length;
2777 static int basename_length;
2778 static char *input_basename;
2779 static char *input_suffix;
2781 /* These are variables used within do_spec and do_spec_1. */
2783 /* Nonzero if an arg has been started and not yet terminated
2784 (with space, tab or newline). */
2785 static int arg_going;
2787 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2788 is a temporary file name. */
2789 static int delete_this_arg;
2791 /* Nonzero means %w has been seen; the next arg to be terminated
2792 is the output file name of this compilation. */
2793 static int this_is_output_file;
2795 /* Nonzero means %s has been seen; the next arg to be terminated
2796 is the name of a library file and we should try the standard
2797 search dirs for it. */
2798 static int this_is_library_file;
2800 /* Nonzero means that the input of this command is coming from a pipe. */
2801 static int input_from_pipe;
2803 /* Process the spec SPEC and run the commands specified therein.
2804 Returns 0 if the spec is successfully processed; -1 if failed. */
2814 delete_this_arg = 0;
2815 this_is_output_file = 0;
2816 this_is_library_file = 0;
2817 input_from_pipe = 0;
2819 value = do_spec_1 (spec, 0, NULL_PTR);
2821 /* Force out any unfinished command.
2822 If -pipe, this forces out the last command if it ended in `|'. */
2825 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2828 if (argbuf_index > 0)
2835 /* Process the sub-spec SPEC as a portion of a larger spec.
2836 This is like processing a whole spec except that we do
2837 not initialize at the beginning and we do not supply a
2838 newline by default at the end.
2839 INSWITCH nonzero means don't process %-sequences in SPEC;
2840 in this case, % is treated as an ordinary character.
2841 This is used while substituting switches.
2842 INSWITCH nonzero also causes SPC not to terminate an argument.
2844 Value is zero unless a line was finished
2845 and the command on that line reported an error. */
2848 do_spec_1 (spec, inswitch, soft_matched_part)
2851 char *soft_matched_part;
2853 register char *p = spec;
2860 /* If substituting a switch, treat all chars like letters.
2861 Otherwise, NL, SPC, TAB and % are special. */
2862 switch (inswitch ? 'a' : c)
2865 /* End of line: finish any pending argument,
2866 then run the pending command if one has been started. */
2869 obstack_1grow (&obstack, 0);
2870 string = obstack_finish (&obstack);
2871 if (this_is_library_file)
2872 string = find_file (string);
2873 store_arg (string, delete_this_arg, this_is_output_file);
2874 if (this_is_output_file)
2875 outfiles[input_file_number] = string;
2879 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2882 for (i = 0; i < n_switches; i++)
2883 if (!strcmp (switches[i].part1, "pipe"))
2886 /* A `|' before the newline means use a pipe here,
2887 but only if -pipe was specified.
2888 Otherwise, execute now and don't pass the `|' as an arg. */
2891 input_from_pipe = 1;
2892 switches[i].valid = 1;
2899 if (argbuf_index > 0)
2905 /* Reinitialize for a new command, and for a new argument. */
2908 delete_this_arg = 0;
2909 this_is_output_file = 0;
2910 this_is_library_file = 0;
2911 input_from_pipe = 0;
2915 /* End any pending argument. */
2918 obstack_1grow (&obstack, 0);
2919 string = obstack_finish (&obstack);
2920 if (this_is_library_file)
2921 string = find_file (string);
2922 store_arg (string, delete_this_arg, this_is_output_file);
2923 if (this_is_output_file)
2924 outfiles[input_file_number] = string;
2928 obstack_1grow (&obstack, c);
2934 /* Space or tab ends an argument if one is pending. */
2937 obstack_1grow (&obstack, 0);
2938 string = obstack_finish (&obstack);
2939 if (this_is_library_file)
2940 string = find_file (string);
2941 store_arg (string, delete_this_arg, this_is_output_file);
2942 if (this_is_output_file)
2943 outfiles[input_file_number] = string;
2945 /* Reinitialize for a new argument. */
2947 delete_this_arg = 0;
2948 this_is_output_file = 0;
2949 this_is_library_file = 0;
2956 fatal ("Invalid specification! Bug in cc.");
2959 obstack_grow (&obstack, input_basename, basename_length);
2964 delete_this_arg = 2;
2967 /* Dump out the directories specified with LIBRARY_PATH,
2968 followed by the absolute directories
2969 that we search for startfiles. */
2972 struct prefix_list *pl = startfile_prefix.plist;
2974 char *buffer = (char *) xmalloc (bufsize);
2977 for (; pl; pl = pl->next)
2979 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
2980 /* Used on systems which record the specified -L dirs
2981 and use them to search for dynamic linking. */
2982 /* Relative directories always come from -B,
2983 and it is better not to use them for searching
2984 at run time. In particular, stage1 loses */
2985 if (pl->prefix[0] != '/')
2988 /* Try subdirectory if there is one. */
2989 if (multilib_dir != NULL)
2993 if (strlen (pl->prefix) + strlen (machine_suffix)
2995 bufsize = (strlen (pl->prefix)
2996 + strlen (machine_suffix)) * 2 + 1;
2997 buffer = (char *) xrealloc (buffer, bufsize);
2998 strcpy (buffer, pl->prefix);
2999 strcat (buffer, machine_suffix);
3000 if (is_directory (buffer, multilib_dir, 1))
3002 do_spec_1 ("-L", 0, NULL_PTR);
3003 #ifdef SPACE_AFTER_L_OPTION
3004 do_spec_1 (" ", 0, NULL_PTR);
3006 do_spec_1 (buffer, 1, NULL_PTR);
3007 do_spec_1 (multilib_dir, 1, NULL_PTR);
3008 /* Make this a separate argument. */
3009 do_spec_1 (" ", 0, NULL_PTR);
3012 if (!pl->require_machine_suffix)
3014 if (is_directory (pl->prefix, 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 (pl->prefix, 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);
3029 if (is_directory (pl->prefix, machine_suffix, 1))
3031 do_spec_1 ("-L", 0, NULL_PTR);
3032 #ifdef SPACE_AFTER_L_OPTION
3033 do_spec_1 (" ", 0, NULL_PTR);
3035 do_spec_1 (pl->prefix, 1, NULL_PTR);
3036 /* Remove slash from machine_suffix. */
3037 if (strlen (machine_suffix) >= bufsize)
3038 bufsize = strlen (machine_suffix) * 2 + 1;
3039 buffer = (char *) xrealloc (buffer, bufsize);
3040 strcpy (buffer, machine_suffix);
3041 idx = strlen (buffer);
3042 if (buffer[idx - 1] == '/')
3043 buffer[idx - 1] = 0;
3044 do_spec_1 (buffer, 1, NULL_PTR);
3045 /* Make this a separate argument. */
3046 do_spec_1 (" ", 0, NULL_PTR);
3049 if (!pl->require_machine_suffix)
3051 if (is_directory (pl->prefix, "", 1))
3053 do_spec_1 ("-L", 0, NULL_PTR);
3054 #ifdef SPACE_AFTER_L_OPTION
3055 do_spec_1 (" ", 0, NULL_PTR);
3057 /* Remove slash from pl->prefix. */
3058 if (strlen (pl->prefix) >= bufsize)
3059 bufsize = strlen (pl->prefix) * 2 + 1;
3060 buffer = (char *) xrealloc (buffer, bufsize);
3061 strcpy (buffer, pl->prefix);
3062 idx = strlen (buffer);
3063 if (buffer[idx - 1] == '/')
3064 buffer[idx - 1] = 0;
3065 do_spec_1 (buffer, 1, NULL_PTR);
3066 /* Make this a separate argument. */
3067 do_spec_1 (" ", 0, NULL_PTR);
3076 /* {...:%efoo} means report an error with `foo' as error message
3077 and don't execute any more commands for this file. */
3081 while (*p != 0 && *p != '\n') p++;
3082 buf = (char *) alloca (p - q + 1);
3083 strncpy (buf, q, p - q);
3093 if (save_temps_flag)
3095 obstack_grow (&obstack, input_basename, basename_length);
3096 delete_this_arg = 0;
3100 #ifdef MKTEMP_EACH_FILE
3101 /* ??? This has a problem: the total number of
3102 values mktemp can return is limited.
3103 That matters for the names of object files.
3104 In 2.4, do something about that. */
3105 struct temp_name *t;
3107 while (*p == '.' || isalpha (*p))
3110 /* See if we already have an association of %g/%u/%U and
3112 for (t = temp_names; t; t = t->next)
3113 if (t->length == p - suffix
3114 && strncmp (t->suffix, suffix, p - suffix) == 0
3115 && t->unique == (c != 'g'))
3118 /* Make a new association if needed. %u requires one. */
3119 if (t == 0 || c == 'u')
3123 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3124 t->next = temp_names;
3127 t->length = p - suffix;
3128 t->suffix = save_string (suffix, p - suffix);
3129 t->unique = (c != 'g');
3130 choose_temp_base ();
3131 t->filename = temp_filename;
3132 t->filename_length = temp_filename_length;
3135 obstack_grow (&obstack, t->filename, t->filename_length);
3136 delete_this_arg = 1;
3138 obstack_grow (&obstack, temp_filename, temp_filename_length);
3139 if (c == 'u' || c == 'U')
3145 sprintf (buff, "%d", unique);
3146 obstack_grow (&obstack, buff, strlen (buff));
3149 delete_this_arg = 1;
3155 obstack_grow (&obstack, input_filename, input_filename_length);
3161 struct prefix_list *pl = include_prefix.plist;
3163 if (gcc_exec_prefix)
3165 do_spec_1 ("-iprefix", 1, NULL_PTR);
3166 /* Make this a separate argument. */
3167 do_spec_1 (" ", 0, NULL_PTR);
3168 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3169 do_spec_1 (" ", 0, NULL_PTR);
3172 for (; pl; pl = pl->next)
3174 do_spec_1 ("-isystem", 1, NULL_PTR);
3175 /* Make this a separate argument. */
3176 do_spec_1 (" ", 0, NULL_PTR);
3177 do_spec_1 (pl->prefix, 1, NULL_PTR);
3178 do_spec_1 (" ", 0, NULL_PTR);
3186 for (f = 0; f < n_infiles; f++)
3187 store_arg (outfiles[f], 0, 0);
3192 this_is_library_file = 1;
3196 this_is_output_file = 1;
3201 int index = argbuf_index;
3202 /* Handle the {...} following the %W. */
3205 p = handle_braces (p + 1);
3208 /* If any args were output, mark the last one for deletion
3210 if (argbuf_index != index)
3211 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3215 /* %x{OPTION} records OPTION for %X to output. */
3221 /* Skip past the option value and make a copy. */
3226 string = save_string (p1 + 1, p - p1 - 2);
3228 /* See if we already recorded this option. */
3229 for (i = 0; i < n_linker_options; i++)
3230 if (! strcmp (string, linker_options[i]))
3236 /* This option is new; add it. */
3238 if (!linker_options)
3240 = (char **) xmalloc (n_linker_options * sizeof (char **));
3243 = (char **) xrealloc (linker_options,
3244 n_linker_options * sizeof (char **));
3246 linker_options[n_linker_options - 1] = string;
3250 /* Dump out the options accumulated previously using %x,
3251 -Xlinker and -Wl,. */
3253 for (i = 0; i < n_linker_options; i++)
3255 do_spec_1 (linker_options[i], 1, NULL_PTR);
3256 /* Make each accumulated option a separate argument. */
3257 do_spec_1 (" ", 0, NULL_PTR);
3261 /* Dump out the options accumulated previously using -Wa,. */
3263 for (i = 0; i < n_assembler_options; i++)
3265 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3266 /* Make each accumulated option a separate argument. */
3267 do_spec_1 (" ", 0, NULL_PTR);
3271 /* Here are digits and numbers that just process
3272 a certain constant string as a spec. */
3275 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3281 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3287 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3293 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3299 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3305 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3311 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3317 value = do_spec_1 (link_spec, 0, NULL_PTR);
3323 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3330 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3334 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3338 if (! strncmp (y, "-D", 2))
3339 /* Copy the whole option. */
3340 while (*y && *y != ' ' && *y != '\t')
3342 else if (*y == ' ' || *y == '\t')
3343 /* Copy whitespace to the result. */
3345 /* Don't copy other options. */
3352 value = do_spec_1 (buf, 0, NULL_PTR);
3360 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3364 /* Copy all of CPP_PREDEFINES into BUF,
3365 but put __ after every -D and at the end of each arg. */
3369 if (! strncmp (y, "-D", 2))
3377 || (*(y+1) != '_' && ! isupper (*(y+1))))
3379 /* Stick __ at front of macro name. */
3382 /* Arrange to stick __ at the end as well. */
3386 /* Copy the macro name. */
3387 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3396 /* Copy the value given, if any. */
3397 while (*y && *y != ' ' && *y != '\t')
3400 else if (*y == ' ' || *y == '\t')
3401 /* Copy whitespace to the result. */
3403 /* Don't copy -A options */
3409 /* Copy all of CPP_PREDEFINES into BUF,
3410 but put __ after every -D. */
3414 if (! strncmp (y, "-D", 2))
3419 || (*(y+1) != '_' && ! isupper (*(y+1))))
3421 /* Stick -D__ at front of macro name. */
3427 /* Copy the macro name. */
3428 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3431 /* Copy the value given, if any. */
3432 while (*y && *y != ' ' && *y != '\t')
3437 /* Do not copy this macro - we have just done it before */
3438 while (*y && *y != ' ' && *y != '\t')
3442 else if (*y == ' ' || *y == '\t')
3443 /* Copy whitespace to the result. */
3445 /* Don't copy -A options */
3451 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3455 if (! strncmp (y, "-A", 2))
3456 /* Copy the whole option. */
3457 while (*y && *y != ' ' && *y != '\t')
3459 else if (*y == ' ' || *y == '\t')
3460 /* Copy whitespace to the result. */
3462 /* Don't copy other options. */
3469 value = do_spec_1 (buf, 0, NULL_PTR);
3476 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3481 /* Here we define characters other than letters and digits. */
3484 p = handle_braces (p);
3490 obstack_1grow (&obstack, '%');
3494 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3495 do_spec_1 (" ", 0, NULL_PTR);
3498 /* Process a string found as the value of a spec given by name.
3499 This feature allows individual machine descriptions
3500 to add and use their own specs.
3501 %[...] modifies -D options the way %P does;
3502 %(...) uses the spec unmodified. */
3507 struct spec_list *sl;
3510 /* The string after the S/P is the name of a spec that is to be
3512 while (*p && *p != ')' && *p != ']')
3515 /* See if it's in the list */
3516 for (len = p - name, sl = specs; sl; sl = sl->next)
3517 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3527 value = do_spec_1 (name, 0, NULL_PTR);
3533 char *x = (char *) alloca (strlen (name) * 2 + 1);
3537 /* Copy all of NAME into BUF, but put __ after
3538 every -D and at the end of each arg, */
3541 if (! strncmp (y, "-D", 2))
3549 else if (*y == ' ' || *y == 0)
3563 value = do_spec_1 (buf, 0, NULL_PTR);
3569 /* Discard the closing paren or bracket. */
3577 int c1 = *p++; /* Select first or second version number. */
3578 char *v = compiler_version;
3580 /* If desired, advance to second version number. */
3583 /* Set P after the first period. */
3584 while (*v != 0 && *v != ' ' && *v != '.')
3589 /* Set Q at the next period or at the end. */
3591 while (*q != 0 && *q != ' ' && *q != '.')
3593 /* Empty string means zero. */
3599 /* Put that part into the command. */
3600 obstack_grow (&obstack, v, q - v);
3606 if (input_from_pipe)
3607 do_spec_1 ("-", 0, NULL_PTR);
3616 /* Backslash: treat next character as ordinary. */
3621 /* Ordinary character: put it into the current argument. */
3622 obstack_1grow (&obstack, c);
3626 return 0; /* End of string */
3629 /* Return 0 if we call do_spec_1 and that returns -1. */
3642 /* A `|' after the open-brace means,
3643 if the test fails, output a single minus sign rather than nothing.
3644 This is used in %{|!pipe:...}. */
3648 /* A `!' after the open-brace negates the condition:
3649 succeed if the specified switch is not present. */
3653 /* A `.' after the open-brace means test against the current suffix. */
3663 while (*p != ':' && *p != '}') p++;
3666 register int count = 1;
3684 int found = (input_suffix != 0
3685 && strlen (input_suffix) == p - filter
3686 && strncmp (input_suffix, filter, p - filter) == 0);
3692 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3697 else if (p[-1] == '*' && p[0] == '}')
3699 /* Substitute all matching switches as separate args. */
3702 for (i = 0; i < n_switches; i++)
3703 if (!strncmp (switches[i].part1, filter, p - filter)
3704 && check_live_switch (i, p - filter))
3709 /* Test for presence of the specified switch. */
3713 /* If name specified ends in *, as in {x*:...},
3714 check for %* and handle that case. */
3715 if (p[-1] == '*' && !negate)
3720 /* First see whether we have %*. */
3724 if (*r == '%' && r[1] == '*')
3728 /* If we do, handle that case. */
3731 /* Substitute all matching switches as separate args.
3732 But do this by substituting for %*
3733 in the text that follows the colon. */
3735 unsigned hard_match_len = p - filter - 1;
3736 char *string = save_string (p + 1, q - p - 2);
3738 for (i = 0; i < n_switches; i++)
3739 if (!strncmp (switches[i].part1, filter, hard_match_len)
3740 && check_live_switch (i, -1))
3742 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3743 /* Pass any arguments this switch has. */
3751 /* If name specified ends in *, as in {x*:...},
3752 check for presence of any switch name starting with x. */
3755 for (i = 0; i < n_switches; i++)
3757 unsigned hard_match_len = p - filter - 1;
3759 if (!strncmp (switches[i].part1, filter, hard_match_len)
3760 && check_live_switch (i, hard_match_len))
3766 /* Otherwise, check for presence of exact name specified. */
3769 for (i = 0; i < n_switches; i++)
3771 if (!strncmp (switches[i].part1, filter, p - filter)
3772 && switches[i].part1[p - filter] == 0
3773 && check_live_switch (i, -1))
3781 /* If it is as desired (present for %{s...}, absent for %{-s...})
3782 then substitute either the switch or the specified
3783 conditional text. */
3784 if (present != negate)
3792 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3798 /* Here if a %{|...} conditional fails: output a minus sign,
3799 which means "standard output" or "standard input". */
3800 do_spec_1 ("-", 0, NULL_PTR);
3807 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
3808 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
3809 spec, or -1 if either exact match or %* is used.
3811 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
3812 whose value does not begin with "no-" is obsoleted by the same value
3813 with the "no-", similarly for a switch with the "no-" prefix. */
3816 check_live_switch (switchnum, prefix_length)
3820 char *name = switches[switchnum].part1;
3823 /* In the common case of {<at-most-one-letter>*}, a negating
3824 switch would always match, so ignore that case. We will just
3825 send the conflicting switches to the compiler phase. */
3826 if (prefix_length >= 0 && prefix_length <= 1)
3829 /* If we already processed this switch and determined if it was
3830 live or not, return our past determination. */
3831 if (switches[switchnum].live_cond != 0)
3832 return switches[switchnum].live_cond > 0;
3834 /* Now search for duplicate in a manner that depends on the name. */
3838 for (i = switchnum + 1; i < n_switches; i++)
3839 if (switches[i].part1[0] == 'O')
3841 switches[switchnum].valid = 1;
3842 switches[switchnum].live_cond = -1;
3847 case 'W': case 'f': case 'm':
3848 if (! strncmp (name + 1, "no-", 3))
3850 /* We have Xno-YYY, search for XYYY. */
3851 for (i = switchnum + 1; i < n_switches; i++)
3852 if (switches[i].part1[0] == name[0]
3853 && ! strcmp (&switches[i].part1[1], &name[4]))
3855 switches[switchnum].valid = 1;
3856 switches[switchnum].live_cond = -1;
3862 /* We have XYYY, search for Xno-YYY. */
3863 for (i = switchnum + 1; i < n_switches; i++)
3864 if (switches[i].part1[0] == name[0]
3865 && switches[i].part1[1] == 'n'
3866 && switches[i].part1[2] == 'o'
3867 && switches[i].part1[3] == '-'
3868 && !strcmp (&switches[i].part1[4], &name[1]))
3870 switches[switchnum].valid = 1;
3871 switches[switchnum].live_cond = -1;
3878 /* Otherwise the switch is live. */
3879 switches[switchnum].live_cond = 1;
3883 /* Pass a switch to the current accumulating command
3884 in the same form that we received it.
3885 SWITCHNUM identifies the switch; it is an index into
3886 the vector of switches gcc received, which is `switches'.
3887 This cannot fail since it never finishes a command line.
3889 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
3892 give_switch (switchnum, omit_first_word)
3894 int omit_first_word;
3896 if (!omit_first_word)
3898 do_spec_1 ("-", 0, NULL_PTR);
3899 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
3901 do_spec_1 (" ", 0, NULL_PTR);
3902 if (switches[switchnum].args != 0)
3905 for (p = switches[switchnum].args; *p; p++)
3907 do_spec_1 (*p, 1, NULL_PTR);
3908 do_spec_1 (" ", 0, NULL_PTR);
3911 switches[switchnum].valid = 1;
3914 /* Search for a file named NAME trying various prefixes including the
3915 user's -B prefix and some standard ones.
3916 Return the absolute file name found. If nothing is found, return NAME. */
3924 /* Try multilib_dir if it is defined. */
3925 if (multilib_dir != NULL)
3929 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
3930 strcpy (try, multilib_dir);
3934 newname = find_a_file (&startfile_prefix, try, R_OK);
3936 /* If we don't find it in the multi library dir, then fall
3937 through and look for it in the normal places. */
3938 if (newname != NULL)
3942 newname = find_a_file (&startfile_prefix, name, R_OK);
3943 return newname ? newname : name;
3946 /* Determine whether a directory exists. If LINKER, return 0 for
3947 certain fixed names not needed by the linker. If not LINKER, it is
3948 only important to return 0 if the host machine has a small ARG_MAX
3952 is_directory (path1, path2, linker)
3957 int len1 = strlen (path1);
3958 int len2 = strlen (path2);
3959 char *path = (char *) alloca (3 + len1 + len2);
3963 #ifndef SMALL_ARG_MAX
3968 /* Construct the path from the two parts. Ensure the string ends with "/.".
3969 The resulting path will be a directory even if the given path is a
3971 bcopy (path1, path, len1);
3972 bcopy (path2, path + len1, len2);
3973 cp = path + len1 + len2;
3979 /* Exclude directories that the linker is known to search. */
3981 && ((cp - path == 6 && strcmp (path, "/lib/.") == 0)
3982 || (cp - path == 10 && strcmp (path, "/usr/lib/.") == 0)))
3985 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
3988 /* On fatal signals, delete all the temporary files. */
3991 fatal_error (signum)
3994 signal (signum, SIG_DFL);
3995 delete_failure_queue ();
3996 delete_temp_files ();
3997 /* Get the same signal again, this time not handled,
3998 so its normal effect occurs. */
3999 kill (getpid (), signum);
4010 int linker_was_run = 0;
4011 char *explicit_link_files;
4015 p = argv[0] + strlen (argv[0]);
4016 while (p != argv[0] && p[-1] != '/') --p;
4019 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4020 signal (SIGINT, fatal_error);
4022 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4023 signal (SIGHUP, fatal_error);
4025 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4026 signal (SIGTERM, fatal_error);
4028 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4029 signal (SIGPIPE, fatal_error);
4033 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4035 obstack_init (&obstack);
4037 /* Set up to remember the pathname of gcc and any options
4038 needed for collect. We use argv[0] instead of programname because
4039 we need the complete pathname. */
4040 obstack_init (&collect_obstack);
4041 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4042 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4043 putenv (obstack_finish (&collect_obstack));
4045 /* Choose directory for temp files. */
4047 choose_temp_base ();
4049 /* Make a table of what switches there are (switches, n_switches).
4050 Make a table of specified input files (infiles, n_infiles).
4051 Decode switches that are handled locally. */
4053 process_command (argc, argv);
4055 /* Initialize the vector of specs to just the default.
4056 This means one element containing 0s, as a terminator. */
4058 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4059 bcopy ((char *) default_compilers, (char *) compilers,
4060 sizeof default_compilers);
4061 n_compilers = n_default_compilers;
4063 /* Read specs from a file if there is one. */
4065 machine_suffix = concat (spec_machine, "/", concat (spec_version, "/", ""));
4066 just_machine_suffix = concat (spec_machine, "/", "");
4068 specs_file = find_a_file (&startfile_prefix, "specs", R_OK);
4069 /* Read the specs file unless it is a default one. */
4070 if (specs_file != 0 && strcmp (specs_file, "specs"))
4071 read_specs (specs_file);
4073 /* If not cross-compiling, look for startfiles in the standard places. */
4074 /* The fact that these are done here, after reading the specs file,
4075 means that it cannot be found in these directories.
4076 But that's okay. It should never be there anyway. */
4079 #ifdef MD_EXEC_PREFIX
4080 add_prefix (&exec_prefix, md_exec_prefix, 0, 0, NULL_PTR);
4081 add_prefix (&startfile_prefix, md_exec_prefix, 0, 0, NULL_PTR);
4084 #ifdef MD_STARTFILE_PREFIX
4085 add_prefix (&startfile_prefix, md_startfile_prefix, 0, 0, NULL_PTR);
4088 #ifdef MD_STARTFILE_PREFIX_1
4089 add_prefix (&startfile_prefix, md_startfile_prefix_1, 0, 0, NULL_PTR);
4092 /* If standard_startfile_prefix is relative, base it on
4093 standard_exec_prefix. This lets us move the installed tree
4094 as a unit. If GCC_EXEC_PREFIX is defined, base
4095 standard_startfile_prefix on that as well. */
4096 if (*standard_startfile_prefix == '/')
4097 add_prefix (&startfile_prefix, standard_startfile_prefix, 0, 0,
4101 if (gcc_exec_prefix)
4102 add_prefix (&startfile_prefix,
4103 concat (gcc_exec_prefix,
4104 standard_startfile_prefix,
4107 add_prefix (&startfile_prefix,
4108 concat (standard_exec_prefix,
4110 standard_startfile_prefix),
4114 add_prefix (&startfile_prefix, standard_startfile_prefix_1, 0, 0,
4116 add_prefix (&startfile_prefix, standard_startfile_prefix_2, 0, 0,
4118 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4119 add_prefix (&startfile_prefix, "./", 0, 1, NULL_PTR);
4123 /* Now we have the specs.
4124 Set the `valid' bits for switches that match anything in any spec. */
4126 validate_all_switches ();
4128 /* Now that we have the switches and the specs, set
4129 the subdirectory based on the options. */
4130 set_multilib_dir ();
4132 /* Warn about any switches that no pass was interested in. */
4134 for (i = 0; i < n_switches; i++)
4135 if (! switches[i].valid)
4136 error ("unrecognized option `-%s'", switches[i].part1);
4138 /* Obey some of the options. */
4140 if (print_file_name)
4142 printf ("%s\n", find_file (print_file_name));
4146 if (print_prog_name)
4148 char *newname = find_a_file (&exec_prefix, print_prog_name, X_OK);
4149 printf ("%s\n", (newname ? newname : print_prog_name));
4153 if (print_multi_lib)
4155 print_multilib_info ();
4159 if (print_multi_directory)
4161 if (multilib_dir == NULL)
4164 printf ("%s\n", multilib_dir);
4170 fprintf (stderr, "gcc version %s\n", version_string);
4176 fatal ("No input files");
4178 /* Make a place to record the compiler output file names
4179 that correspond to the input files. */
4181 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4182 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4184 /* Record which files were specified explicitly as link input. */
4186 explicit_link_files = xmalloc (n_infiles);
4187 bzero (explicit_link_files, n_infiles);
4189 for (i = 0; i < n_infiles; i++)
4191 register struct compiler *cp = 0;
4192 int this_file_error = 0;
4194 /* Tell do_spec what to substitute for %i. */
4196 input_filename = infiles[i].name;
4197 input_filename_length = strlen (input_filename);
4198 input_file_number = i;
4200 /* Use the same thing in %o, unless cp->spec says otherwise. */
4202 outfiles[i] = input_filename;
4204 /* Figure out which compiler from the file's suffix. */
4206 cp = lookup_compiler (infiles[i].name, input_filename_length,
4207 infiles[i].language);
4211 /* Ok, we found an applicable compiler. Run its spec. */
4212 /* First say how much of input_filename to substitute for %b */
4216 input_basename = input_filename;
4217 for (p = input_filename; *p; p++)
4219 input_basename = p + 1;
4221 /* Find a suffix starting with the last period,
4222 and set basename_length to exclude that suffix. */
4223 basename_length = strlen (input_basename);
4224 p = input_basename + basename_length;
4225 while (p != input_basename && *p != '.') --p;
4226 if (*p == '.' && p != input_basename)
4228 basename_length = p - input_basename;
4229 input_suffix = p + 1;
4235 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4237 len += strlen (cp->spec[j]);
4239 p = (char *) xmalloc (len + 1);
4242 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4245 strcpy (p + len, cp->spec[j]);
4246 len += strlen (cp->spec[j]);
4249 value = do_spec (p);
4252 this_file_error = 1;
4255 /* If this file's name does not contain a recognized suffix,
4256 record it as explicit linker input. */
4259 explicit_link_files[i] = 1;
4261 /* Clear the delete-on-failure queue, deleting the files in it
4262 if this compilation failed. */
4264 if (this_file_error)
4266 delete_failure_queue ();
4269 /* If this compilation succeeded, don't delete those files later. */
4270 clear_failure_queue ();
4273 /* Run ld to link all the compiler output files. */
4275 if (error_count == 0)
4277 int tmp = execution_count;
4281 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4283 putenv_from_prefixes (&exec_prefix, "COMPILER_PATH=");
4284 putenv_from_prefixes (&startfile_prefix, "LIBRARY_PATH=");
4286 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4288 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4289 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4292 for (i = 0; i < n_switches; i++)
4296 obstack_grow (&collect_obstack, " ", 1);
4299 obstack_grow (&collect_obstack, "-", 1);
4300 obstack_grow (&collect_obstack, switches[i].part1,
4301 strlen (switches[i].part1));
4303 for (args = switches[i].args; args && *args; args++)
4305 obstack_grow (&collect_obstack, " ", 1);
4306 obstack_grow (&collect_obstack, *args, strlen (*args));
4309 obstack_grow (&collect_obstack, "\0", 1);
4310 putenv (obstack_finish (&collect_obstack));
4312 value = do_spec (link_command_spec);
4315 linker_was_run = (tmp != execution_count);
4318 /* Warn if a -B option was specified but the prefix was never used. */
4319 unused_prefix_warnings (&exec_prefix);
4320 unused_prefix_warnings (&startfile_prefix);
4322 /* If options said don't run linker,
4323 complain about input files to be given to the linker. */
4325 if (! linker_was_run && error_count == 0)
4326 for (i = 0; i < n_infiles; i++)
4327 if (explicit_link_files[i])
4328 error ("%s: linker input file unused since linking not done",
4331 /* Delete some or all of the temporary files we made. */
4334 delete_failure_queue ();
4335 delete_temp_files ();
4337 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4342 /* Find the proper compilation spec for the file name NAME,
4343 whose length is LENGTH. LANGUAGE is the specified language,
4344 or 0 if none specified. */
4346 static struct compiler *
4347 lookup_compiler (name, length, language)
4352 struct compiler *cp;
4354 /* Look for the language, if one is spec'd. */
4357 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4361 if (cp->suffix[0] == '@'
4362 && !strcmp (cp->suffix + 1, language))
4366 error ("language %s not recognized", language);
4369 /* Look for a suffix. */
4370 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4372 if (/* The suffix `-' matches only the file name `-'. */
4373 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4375 (strlen (cp->suffix) < length
4376 /* See if the suffix matches the end of NAME. */
4377 && !strcmp (cp->suffix,
4378 name + length - strlen (cp->suffix))))
4380 if (cp->spec[0][0] == '@')
4382 struct compiler *new;
4383 /* An alias entry maps a suffix to a language.
4384 Search for the language; pass 0 for NAME and LENGTH
4385 to avoid infinite recursion if language not found.
4386 Construct the new compiler spec. */
4387 language = cp->spec[0] + 1;
4388 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4389 new->suffix = cp->suffix;
4390 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4391 (char *) new->spec, sizeof new->spec);
4394 /* A non-alias entry: return it. */
4406 register char *value = (char *) malloc (size);
4408 fatal ("virtual memory exhausted");
4413 xrealloc (ptr, size)
4417 register char *value = (char *) realloc (ptr, size);
4419 fatal ("virtual memory exhausted");
4423 /* Return a newly-allocated string whose contents concatenate those of s1, s2, s3. */
4429 int len1 = strlen (s1), len2 = strlen (s2), len3 = strlen (s3);
4430 char *result = xmalloc (len1 + len2 + len3 + 1);
4432 strcpy (result, s1);
4433 strcpy (result + len1, s2);
4434 strcpy (result + len1 + len2, s3);
4435 *(result + len1 + len2 + len3) = 0;
4441 save_string (s, len)
4445 register char *result = xmalloc (len + 1);
4447 bcopy (s, result, len);
4453 pfatal_with_name (name)
4458 if (errno < sys_nerr)
4459 s = concat ("%s: ", sys_errlist[errno], "");
4461 s = "cannot open %s";
4466 perror_with_name (name)
4471 if (errno < sys_nerr)
4472 s = concat ("%s: ", sys_errlist[errno], "");
4474 s = "cannot open %s";
4484 if (errno < sys_nerr)
4485 s = concat ("installation problem, cannot exec %s: ",
4486 sys_errlist[errno], "");
4488 s = "installation problem, cannot exec %s";
4492 /* More 'friendly' abort that prints the line and file.
4493 config.h can #define abort fancy_abort if you like that sort of thing. */
4498 fatal ("Internal gcc abort.");
4503 /* Output an error message and exit */
4506 fatal VPROTO((char *format, ...))
4513 VA_START (ap, format);
4516 format = va_arg (ap, char*);
4519 fprintf (stderr, "%s: ", programname);
4520 vfprintf (stderr, format, ap);
4522 fprintf (stderr, "\n");
4523 delete_temp_files ();
4528 error VPROTO((char *format, ...))
4535 VA_START (ap, format);
4538 format = va_arg (ap, char*);
4541 fprintf (stderr, "%s: ", programname);
4542 vfprintf (stderr, format, ap);
4545 fprintf (stderr, "\n");
4548 #else /* not HAVE_VPRINTF */
4551 fatal (msg, arg1, arg2)
4552 char *msg, *arg1, *arg2;
4554 error (msg, arg1, arg2);
4555 delete_temp_files ();
4560 error (msg, arg1, arg2)
4561 char *msg, *arg1, *arg2;
4563 fprintf (stderr, "%s: ", programname);
4564 fprintf (stderr, msg, arg1, arg2);
4565 fprintf (stderr, "\n");
4568 #endif /* not HAVE_VPRINTF */
4572 validate_all_switches ()
4574 struct compiler *comp;
4577 struct spec_list *spec;
4579 for (comp = compilers; comp->spec[0]; comp++)
4582 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4586 if (c == '%' && *p == '{')
4587 /* We have a switch spec. */
4588 validate_switches (p + 1);
4592 /* look through the linked list of extra specs read from the specs file */
4593 for (spec = specs; spec ; spec = spec->next)
4597 if (c == '%' && *p == '{')
4598 /* We have a switch spec. */
4599 validate_switches (p + 1);
4602 p = link_command_spec;
4604 if (c == '%' && *p == '{')
4605 /* We have a switch spec. */
4606 validate_switches (p + 1);
4608 /* Now notice switches mentioned in the machine-specific specs. */
4612 if (c == '%' && *p == '{')
4613 /* We have a switch spec. */
4614 validate_switches (p + 1);
4618 if (c == '%' && *p == '{')
4619 /* We have a switch spec. */
4620 validate_switches (p + 1);
4624 if (c == '%' && *p == '{')
4625 /* We have a switch spec. */
4626 validate_switches (p + 1);
4628 p = signed_char_spec;
4630 if (c == '%' && *p == '{')
4631 /* We have a switch spec. */
4632 validate_switches (p + 1);
4636 if (c == '%' && *p == '{')
4637 /* We have a switch spec. */
4638 validate_switches (p + 1);
4642 if (c == '%' && *p == '{')
4643 /* We have a switch spec. */
4644 validate_switches (p + 1);
4648 if (c == '%' && *p == '{')
4649 /* We have a switch spec. */
4650 validate_switches (p + 1);
4654 if (c == '%' && *p == '{')
4655 /* We have a switch spec. */
4656 validate_switches (p + 1);
4660 if (c == '%' && *p == '{')
4661 /* We have a switch spec. */
4662 validate_switches (p + 1);
4665 /* Look at the switch-name that comes after START
4666 and mark as valid all supplied switches that match it. */
4669 validate_switches (start)
4672 register char *p = start;
4687 while (*p != ':' && *p != '}') p++;
4691 else if (p[-1] == '*')
4693 /* Mark all matching switches as valid. */
4695 for (i = 0; i < n_switches; i++)
4696 if (!strncmp (switches[i].part1, filter, p - filter))
4697 switches[i].valid = 1;
4701 /* Mark an exact matching switch as valid. */
4702 for (i = 0; i < n_switches; i++)
4704 if (!strncmp (switches[i].part1, filter, p - filter)
4705 && switches[i].part1[p - filter] == 0)
4706 switches[i].valid = 1;
4711 /* Check whether a particular argument was used. */
4720 for (i = 0; i < n_switches; i++)
4721 if (! strncmp (switches[i].part1, p, len)
4722 && strlen (switches[i].part1) == len)
4727 /* Work out the subdirectory to use based on the
4728 options. The format of multilib_select is a list of elements.
4729 Each element is a subdirectory name followed by a list of options
4730 followed by a semicolon. gcc will consider each line in turn. If
4731 none of the options beginning with an exclamation point are
4732 present, and all of the other options are present, that
4733 subdirectory will be used. */
4738 char *p = multilib_select;
4740 char *this_path, *this_arg;
4745 /* Ignore newlines. */
4752 /* Get the initial path. */
4760 this_path_len = p - this_path;
4762 /* Check the arguments. */
4777 while (*p != ' ' && *p != ';')
4784 if (*this_arg == '!')
4785 failed = used_arg (this_arg + 1, p - (this_arg + 1));
4787 failed = ! used_arg (this_arg, p - this_arg);
4795 if (this_path_len != 1
4796 || this_path[0] != '.')
4798 multilib_dir = xmalloc (this_path_len + 1);
4799 strncpy (multilib_dir, this_path, this_path_len);
4800 multilib_dir[this_path_len] = '\0';
4809 /* Print out the multiple library subdirectory selection
4810 information. This prints out a series of lines. Each line looks
4811 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
4812 required. Only the desired options are printed out, the negative
4813 matches. The options are print without a leading dash. There are
4814 no spaces to make it easy to use the information in the shell.
4815 Each subdirectory is printed only once. This assumes the ordering
4816 generated by the genmultilib script. */
4819 print_multilib_info ()
4821 char *p = multilib_select;
4822 char *last_path, *this_path;
4823 int last_path_len, skip, use_arg;
4827 /* Ignore newlines. */
4834 /* Get the initial path. */
4843 /* If this is a duplicate, skip it. */
4844 skip = (p - this_path == last_path_len
4845 && ! strncmp (last_path, this_path, last_path_len));
4847 last_path = this_path;
4848 last_path_len = p - this_path;
4854 for (p1 = last_path; p1 < p; p1++)
4873 use_arg = *p != '!';
4878 while (*p != ' ' && *p != ';')