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. */
54 /* Add prototype support. */
56 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
57 #define PROTO(ARGS) ARGS
59 #define PROTO(ARGS) ()
65 #define PVPROTO(ARGS) ARGS
66 #define VPROTO(ARGS) ARGS
67 #define VA_START(va_list,var) va_start(va_list,var)
69 #define PVPROTO(ARGS) ()
70 #define VPROTO(ARGS) (va_alist) va_dcl
71 #define VA_START(va_list,var) va_start(va_list)
75 /* Define a generic NULL if one hasn't already been defined. */
82 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
83 #define GENERIC_PTR void *
85 #define GENERIC_PTR char *
90 #define NULL_PTR ((GENERIC_PTR)0)
97 /* On MSDOS, write temp files in current dir
98 because there's no place else we can expect to use. */
105 /* Test if something is a normal file. */
107 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
110 /* Test if something is a directory. */
112 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
115 /* By default there is no special suffix for executables. */
116 #ifndef EXECUTABLE_SUFFIX
117 #define EXECUTABLE_SUFFIX ""
120 /* By default, colon separates directories in a path. */
121 #ifndef PATH_SEPARATOR
122 #define PATH_SEPARATOR ':'
125 #define obstack_chunk_alloc xmalloc
126 #define obstack_chunk_free free
129 extern char *getenv ();
131 extern int errno, sys_nerr;
133 extern const char *const sys_errlist[];
135 extern char *sys_errlist[];
138 extern int execv (), execvp ();
140 /* If a stage of compilation returns an exit status >= 1,
141 compilation of that file ceases. */
143 #define MIN_FATAL_STATUS 1
145 /* Flag saying to print the full filename of libgcc.a
146 as found through our usual search mechanism. */
148 static int print_libgcc_file_name;
150 /* Flag indicating whether we should print the command and arguments */
152 static int verbose_flag;
154 /* Nonzero means write "temp" files in source directory
155 and use the source file's name in them, and don't delete them. */
157 static int save_temps_flag;
159 /* The compiler version. */
161 static char *compiler_version;
163 /* The target version specified with -V */
165 static char *spec_version = DEFAULT_TARGET_VERSION;
167 /* The target machine specified with -b. */
169 static char *spec_machine = DEFAULT_TARGET_MACHINE;
171 /* Nonzero if cross-compiling.
172 When -b is used, the value comes from the `specs' file. */
175 static int cross_compile = 1;
177 static int cross_compile = 0;
180 /* The number of errors that have occurred; the link phase will not be
181 run if this is non-zero. */
182 static int error_count = 0;
184 /* This is the obstack which we use to allocate many strings. */
186 static struct obstack obstack;
188 /* This is the obstack to build an environment variable to pass to
189 collect2 that describes all of the relevant switches of what to
190 pass the compiler in building the list of pointers to constructors
193 static struct obstack collect_obstack;
195 extern char *version_string;
197 /* Forward declaration for prototypes. */
200 static void set_spec PROTO((char *, char *));
201 static struct compiler *lookup_compiler PROTO((char *, int, char *));
202 static char *find_a_file PROTO((struct path_prefix *, char *, int));
203 static void add_prefix PROTO((struct path_prefix *, char *, int, int, int *));
204 static char *skip_whitespace PROTO((char *));
205 static void record_temp_file PROTO((char *, int, int));
206 static char *handle_braces PROTO((char *));
207 static char *save_string PROTO((char *, int));
208 static char *concat PROTO((char *, char *, char *));
209 static int do_spec PROTO((char *));
210 static int do_spec_1 PROTO((char *, int, char *));
211 static char *find_file PROTO((char *));
212 static int is_directory PROTO((char *, char *, int));
213 static void validate_switches PROTO((char *));
214 static void validate_all_switches PROTO((void));
215 static void give_switch PROTO((int, int));
216 static void pfatal_with_name PROTO((char *));
217 static void perror_with_name PROTO((char *));
218 static void perror_exec PROTO((char *));
220 static void fatal PVPROTO((char *, ...));
221 static void error PVPROTO((char *, ...));
223 /* We must not provide any prototype here, even if ANSI C. */
224 static void fatal PROTO(());
225 static void error PROTO(());
232 /* Specs are strings containing lines, each of which (if not blank)
233 is made up of a program name, and arguments separated by spaces.
234 The program name must be exact and start from root, since no path
235 is searched and it is unreliable to depend on the current working directory.
236 Redirection of input or output is not supported; the subprograms must
237 accept filenames saying what files to read and write.
239 In addition, the specs can contain %-sequences to substitute variable text
240 or for conditional text. Here is a table of all defined %-sequences.
241 Note that spaces are not generated automatically around the results of
242 expanding these sequences; therefore, you can concatenate them together
243 or with constant text in a single argument.
245 %% substitute one % into the program name or argument.
246 %i substitute the name of the input file being processed.
247 %b substitute the basename of the input file being processed.
248 This is the substring up to (and not including) the last period
249 and not including the directory.
250 %g substitute the temporary-file-name-base. This is a string chosen
251 once per compilation. Different temporary file names are made by
252 concatenation of constant strings on the end, as in `%g.s'.
253 %g also has the same effect of %d.
254 %u like %g, but make the temporary file name unique.
255 %U returns the last file name generated with %u.
256 %d marks the argument containing or following the %d as a
257 temporary file name, so that that file will be deleted if CC exits
258 successfully. Unlike %g, this contributes no text to the argument.
259 %w marks the argument containing or following the %w as the
260 "output file" of this compilation. This puts the argument
261 into the sequence of arguments that %o will substitute later.
263 like %{...} but mark last argument supplied within
264 as a file to be deleted on failure.
265 %o substitutes the names of all the output files, with spaces
266 automatically placed around them. You should write spaces
267 around the %o as well or the results are undefined.
268 %o is for use in the specs for running the linker.
269 Input files whose names have no recognized suffix are not compiled
270 at all, but they are included among the output files, so they will
272 %p substitutes the standard macro predefinitions for the
273 current target machine. Use this when running cpp.
274 %P like %p, but puts `__' before and after the name of each macro.
275 (Except macros that already have __.)
277 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
278 %s current argument is the name of a library or startup file of some sort.
279 Search for that file in a standard list of directories
280 and substitute the full name found.
281 %eSTR Print STR as an error message. STR is terminated by a newline.
282 Use this when inconsistent options are detected.
283 %x{OPTION} Accumulate an option for %X.
284 %X Output the accumulated linker options specified by compilations.
285 %Y Output the accumulated assembler options specified by compilations.
286 %v1 Substitute the major version number of GCC.
287 (For version 2.5.n, this is 2.)
288 %v2 Substitute the minor version number of GCC.
289 (For version 2.5.n, this is 5.)
290 %a process ASM_SPEC as a spec.
291 This allows config.h to specify part of the spec for running as.
292 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
293 used here. This can be used to run a post-processor after the
294 assembler has done it's job.
295 %D Dump out a -L option for each directory in startfile_prefix.
296 %l process LINK_SPEC as a spec.
297 %L process LIB_SPEC as a spec.
298 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
299 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
300 %c process SIGNED_CHAR_SPEC as a spec.
301 %C process CPP_SPEC as a spec. A capital C is actually used here.
302 %1 process CC1_SPEC as a spec.
303 %2 process CC1PLUS_SPEC as a spec.
304 %| output "-" if the input for the current command is coming from a pipe.
305 %* substitute the variable part of a matched option. (See below.)
306 Note that each comma in the substituted string is replaced by
308 %{S} substitutes the -S switch, if that switch was given to CC.
309 If that switch was not specified, this substitutes nothing.
310 Here S is a metasyntactic variable.
311 %{S*} substitutes all the switches specified to CC whose names start
312 with -S. This is used for -o, -D, -I, etc; switches that take
313 arguments. CC considers `-o foo' as being one switch whose
314 name starts with `o'. %{o*} would substitute this text,
315 including the space; thus, two arguments would be generated.
316 %{S*:X} substitutes X if one or more switches whose names start with -S are
317 specified to CC. Note that the tail part of the -S option
318 (i.e. the part matched by the `*') will be substituted for each
319 occurrence of %* within X.
320 %{S:X} substitutes X, but only if the -S switch was given to CC.
321 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
322 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
323 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
324 %{.S:X} substitutes X, but only if processing a file with suffix S.
325 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
326 %(Spec) processes a specification defined in a specs file as *Spec:
327 %[Spec] as above, but put __ around -D arguments
329 The conditional text X in a %{S:X} or %{!S:X} construct may contain
330 other nested % constructs or spaces, or even newlines. They are
331 processed as usual, as described above.
333 The character | is used to indicate that a command should be piped to
334 the following command, but only if -pipe is specified.
336 Note that it is built into CC which switches take arguments and which
337 do not. You might think it would be useful to generalize this to
338 allow each compiler's spec to say which switches take arguments. But
339 this cannot be done in a consistent fashion. CC cannot even decide
340 which input files have been specified without knowing which switches
341 take arguments, and it must know which input files to compile in order
342 to tell which compilers to run.
344 CC also knows implicitly that arguments starting in `-l' are to be
345 treated as compiler output files, and passed to the linker in their
346 proper position among the other output files. */
348 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
350 /* config.h can define ASM_SPEC to provide extra args to the assembler
351 or extra switch-translations. */
356 /* config.h can define ASM_FINAL_SPEC to run a post processor after
357 the assembler has run. */
358 #ifndef ASM_FINAL_SPEC
359 #define ASM_FINAL_SPEC ""
362 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
363 or extra switch-translations. */
368 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
369 or extra switch-translations. */
374 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
375 or extra switch-translations. */
377 #define CC1PLUS_SPEC ""
380 /* config.h can define LINK_SPEC to provide extra args to the linker
381 or extra switch-translations. */
386 /* config.h can define LIB_SPEC to override the default libraries. */
388 #define LIB_SPEC "%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
391 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
392 #ifndef STARTFILE_SPEC
393 #define STARTFILE_SPEC \
394 "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}"
397 /* config.h can define SWITCHES_NEED_SPACES to control passing -o and -L.
398 Make the string nonempty to require spaces there. */
399 #ifndef SWITCHES_NEED_SPACES
400 #define SWITCHES_NEED_SPACES ""
403 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
405 #define ENDFILE_SPEC ""
408 /* This spec is used for telling cpp whether char is signed or not. */
409 #ifndef SIGNED_CHAR_SPEC
410 /* Use #if rather than ?:
411 because MIPS C compiler rejects like ?: in initializers. */
412 #if DEFAULT_SIGNED_CHAR
413 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
415 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
419 static char *cpp_spec = CPP_SPEC;
420 static char *cpp_predefines = CPP_PREDEFINES;
421 static char *cc1_spec = CC1_SPEC;
422 static char *cc1plus_spec = CC1PLUS_SPEC;
423 static char *signed_char_spec = SIGNED_CHAR_SPEC;
424 static char *asm_spec = ASM_SPEC;
425 static char *asm_final_spec = ASM_FINAL_SPEC;
426 static char *link_spec = LINK_SPEC;
427 static char *lib_spec = LIB_SPEC;
428 static char *endfile_spec = ENDFILE_SPEC;
429 static char *startfile_spec = STARTFILE_SPEC;
430 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
432 /* This defines which switch letters take arguments. */
434 #ifndef SWITCH_TAKES_ARG
435 #define SWITCH_TAKES_ARG(CHAR) \
436 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
437 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
438 || (CHAR) == 'I' || (CHAR) == 'm' \
439 || (CHAR) == 'L' || (CHAR) == 'A')
442 /* This defines which multi-letter switches take arguments. */
444 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
445 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
446 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
447 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
448 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
449 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore"))
451 #ifndef WORD_SWITCH_TAKES_ARG
452 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
455 /* Record the mapping from file suffixes for compilation specs. */
459 char *suffix; /* Use this compiler for input files
460 whose names end in this suffix. */
462 char *spec[4]; /* To use this compiler, concatenate these
463 specs and pass to do_spec. */
466 /* Pointer to a vector of `struct compiler' that gives the spec for
467 compiling a file, based on its suffix.
468 A file that does not end in any of these suffixes will be passed
469 unchanged to the loader and nothing else will be done to it.
471 An entry containing two 0s is used to terminate the vector.
473 If multiple entries match a file, the last matching one is used. */
475 static struct compiler *compilers;
477 /* Number of entries in `compilers', not counting the null terminator. */
479 static int n_compilers;
481 /* The default list of file name suffixes and their compilation specs. */
483 static struct compiler default_compilers[] =
487 "cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
488 %{C:%{!E:%eGNU C does not support -C without using -E}}\
489 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d}\
490 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
491 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
492 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
493 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
494 %{traditional-cpp:-traditional}\
495 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
496 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
497 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
498 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a}\
499 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
500 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
502 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
503 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
504 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
505 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
506 %{!pipe:%g.s} %A\n }}}}"},
508 "%{E:cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
509 %{C:%{!E:%eGNU C does not support -C without using -E}}\
510 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d}\
511 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
512 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
513 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
514 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
515 %{traditional-cpp:-traditional}\
516 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
518 %{!E:%e-E required when input is from standard input}"},
519 {".m", "@objective-c"},
521 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
522 %{C:%{!E:%eGNU C does not support -C without using -E}}\
523 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d}\
524 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
525 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
526 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
527 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
528 %{traditional-cpp:-traditional}\
529 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
530 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
531 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
532 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a}\
533 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
534 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
535 -lang-objc %{gen-decls} \
537 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
538 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
539 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
540 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
541 %{!pipe:%g.s} %A\n }}}}"},
544 "%{!E:%eCompilation of header file requested} \
545 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
546 %{C:%{!E:%eGNU C does not support -C without using -E}}\
547 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} \
548 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
549 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
550 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
551 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
552 %{traditional-cpp:-traditional}\
553 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
560 "cpp -lang-c++ %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
561 %{C:%{!E:%eGNU C++ does not support -C without using -E}}\
562 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} \
563 -undef -D__GNUC__=%v1 -D__GNUG__=%v1 -D__cplusplus -D__GNUC_MINOR__=%v2\
564 %{ansi:-trigraphs -$ -D__STRICT_ANSI__} %{!undef:%{!ansi:%p} %P}\
565 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
566 %{traditional-cpp:-traditional} %{trigraphs}\
567 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
568 %i %{!M:%{!MM:%{!E:%{!pipe:%g.ii}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
569 "%{!M:%{!MM:%{!E:cc1plus %{!pipe:%g.ii} %1 %2\
570 %{!Q:-quiet} -dumpbase %b.cc %{d*} %{m*} %{a}\
571 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} %{traditional}\
572 %{v:-version} %{pg:-p} %{p} %{f*} %{+e*}\
574 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
575 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
576 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
577 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
578 %{!pipe:%g.s} %A\n }}}}"},
579 {".i", "@cpp-output"},
581 "cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
582 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} %{traditional}\
583 %{v:-version} %{pg:-p} %{p} %{f*}\
585 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
586 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
587 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
588 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o} %{!pipe:%g.s} %A\n }"},
589 {".ii", "@c++-cpp-output"},
591 "cc1plus %i %1 %2 %{!Q:-quiet} %{d*} %{m*} %{a}\
592 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} %{traditional}\
593 %{v:-version} %{pg:-p} %{p} %{f*} %{+e*}\
595 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
596 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
597 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
598 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
599 %{!pipe:%g.s} %A\n }"},
600 {".s", "@assembler"},
602 "%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
603 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o} %i %A\n }"},
604 {".S", "@assembler-with-cpp"},
605 {"@assembler-with-cpp",
606 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
607 %{C:%{!E:%eGNU C does not support -C without using -E}}\
608 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{trigraphs} \
609 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
610 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
611 %{traditional-cpp:-traditional}\
612 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
613 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
614 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
615 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
616 %{!pipe:%g.s} %A\n }}}}"},
621 "gnat1 %{k8:-gnatk8} %{w:-gnatws} %{!Q:-quiet} -dumpbase %b.ada\
622 %{g*} %{O*} %{p} %{pg:-p} %{f*} %{d*}\
623 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
624 %i %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} | \n",
625 "%{!S:%{!gnatc:%{!gnats:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
626 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
627 %{!pipe:%g.s} %A\n}}} "},
628 /* Mark end of table */
632 /* Number of elements in default_compilers, not counting the terminator. */
634 static int n_default_compilers
635 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
637 /* Here is the spec for running the linker, after compiling all files. */
639 /* -u* was put back because both BSD and SysV seem to support it. */
640 /* %{static:} simply prevents an error message if the target machine
641 doesn't handle -static. */
642 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
643 scripts which exist in user specified directories, or in standard
645 #ifdef LINK_LIBGCC_SPECIAL_1
646 /* Have gcc do the search for libgcc.a, but generate -L options as usual. */
647 static char *link_command_spec = "\
649 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
650 %{r} %{s} %{t} %{u*} %{x} %{z}\
651 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
652 %{L*} %D %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
654 #ifdef LINK_LIBGCC_SPECIAL
655 /* Have gcc do the search for libgcc.a, and don't generate -L options. */
656 static char *link_command_spec = "\
658 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
659 %{r} %{s} %{t} %{u*} %{x} %{z}\
660 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
661 %{L*} %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
663 /* Use -L and have the linker do the search for -lgcc. */
664 static char *link_command_spec = "\
666 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
667 %{r} %{s} %{t} %{u*} %{x} %{z}\
668 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
669 %{L*} %D %{T*} %o %{!nostdlib:-lgcc %L -lgcc %{!A:%E}}\n }}}}}}";
673 /* A vector of options to give to the linker.
674 These options are accumulated by -Xlinker and -Wl,
675 and substituted into the linker command with %X. */
676 static int n_linker_options;
677 static char **linker_options;
679 /* A vector of options to give to the assembler.
680 These options are accumulated by -Wa,
681 and substituted into the assembler command with %X. */
682 static int n_assembler_options;
683 static char **assembler_options;
685 /* Define how to map long options into short ones. */
687 /* This structure describes one mapping. */
690 /* The long option's name. */
692 /* The equivalent short option. */
694 /* Argument info. A string of flag chars; NULL equals no options.
695 a => argument required.
696 o => argument optional.
697 j => join argument to equivalent, making one word.
698 * => allow other text after NAME as an argument. */
702 /* This is the table of mappings. Mappings are tried sequentially
703 for each option encountered; the first one that matches, wins. */
705 struct option_map option_map[] =
707 {"--profile-blocks", "-a", 0},
708 {"--target", "-b", "a"},
709 {"--compile", "-c", 0},
710 {"--dump", "-d", "a"},
711 {"--entry", "-e", 0},
712 {"--debug", "-g", "oj"},
713 {"--include", "-include", "a"},
714 {"--imacros", "-imacros", "a"},
715 {"--include-prefix", "-iprefix", "a"},
716 {"--include-directory-after", "-idirafter", "a"},
717 {"--include-with-prefix", "-iwithprefix", "a"},
718 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
719 {"--include-with-prefix-after", "-iwithprefix", "a"},
720 {"--machine-", "-m", "*j"},
721 {"--machine", "-m", "aj"},
722 {"--no-standard-includes", "-nostdinc", 0},
723 {"--no-standard-libraries", "-nostdlib", 0},
724 {"--no-precompiled-includes", "-noprecomp", 0},
725 {"--output", "-o", "a"},
726 {"--profile", "-p", 0},
727 {"--quiet", "-q", 0},
728 {"--silent", "-q", 0},
729 {"--force-link", "-u", "a"},
730 {"--verbose", "-v", 0},
731 {"--version", "-dumpversion", 0},
732 {"--no-warnings", "-w", 0},
733 {"--language", "-x", "a"},
735 {"--assert", "-A", "a"},
736 {"--prefix", "-B", "a"},
737 {"--comments", "-C", 0},
738 {"--define-macro", "-D", "a"},
739 {"--preprocess", "-E", 0},
740 {"--trace-includes", "-H", 0},
741 {"--include-directory", "-I", "a"},
742 {"--include-barrier", "-I-", 0},
743 {"--library-directory", "-L", "a"},
744 {"--dependencies", "-M", 0},
745 {"--user-dependencies", "-MM", 0},
746 {"--write-dependencies", "-MD", 0},
747 {"--write-user-dependencies", "-MMD", 0},
748 {"--optimize", "-O", "oj"},
749 {"--no-line-commands", "-P", 0},
750 {"--assemble", "-S", 0},
751 {"--undefine-macro", "-U", "a"},
752 {"--use-version", "-V", "a"},
753 {"--for-assembler", "-Wa", "a"},
754 {"--extra-warnings", "-W", 0},
755 {"--all-warnings", "-Wall", 0},
756 {"--warn-", "-W", "*j"},
757 {"--for-linker", "-Xlinker", "a"},
759 {"--ansi", "-ansi", 0},
760 {"--traditional", "-traditional", 0},
761 {"--traditional-cpp", "-traditional-cpp", 0},
762 {"--trigraphs", "-trigraphs", 0},
763 {"--pipe", "-pipe", 0},
764 {"--dumpbase", "-dumpbase", "a"},
765 {"--pedantic", "-pedantic", 0},
766 {"--pedantic-errors", "-pedantic-errors", 0},
767 {"--save-temps", "-save-temps", 0},
768 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
769 {"--static", "-static", 0},
770 {"--shared", "-shared", 0},
771 {"--symbolic", "-symbolic", 0},
775 /* Translate the options described by *ARGCP and *ARGVP.
776 Make a new vector and store it back in *ARGVP,
777 and store its length in *ARGVC. */
780 translate_options (argcp, argvp)
786 char **argv = *argvp;
787 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
791 newv[newindex++] = argv[i++];
795 /* Translate -- options. */
796 if (argv[i][0] == '-' && argv[i][1] == '-')
798 /* Find a mapping that applies to this option. */
799 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
801 int optlen = strlen (option_map[j].name);
802 int complen = strlen (argv[i]);
803 char *arginfo = option_map[j].arg_info;
807 if (complen > optlen)
809 if (!strncmp (argv[i], option_map[j].name, complen))
811 int extra = strlen (argv[i]) > optlen;
816 /* If the option has an argument, accept that. */
817 if (argv[i][optlen] == '=')
818 arg = argv[i] + optlen + 1;
819 /* If this mapping allows extra text at end of name,
820 accept that as "argument". */
821 else if (index (arginfo, '*') != 0)
822 arg = argv[i] + optlen;
823 /* Otherwise, extra text at end means mismatch.
824 Try other mappings. */
828 else if (index (arginfo, '*') != 0)
829 error ("Incomplete `%s' option", option_map[j].name);
831 /* Handle arguments. */
832 if (index (arginfo, 'o') != 0)
837 error ("Missing argument to `%s' option",
842 else if (index (arginfo, '*') != 0)
844 else if (index (arginfo, 'a') == 0)
847 error ("Extraneous argument to `%s' option",
852 /* Store the translation as one argv elt or as two. */
853 if (arg != 0 && index (arginfo, 'j') != 0)
854 newv[newindex++] = concat (option_map[j].equivalent,
858 newv[newindex++] = option_map[j].equivalent;
859 newv[newindex++] = arg;
862 newv[newindex++] = option_map[j].equivalent;
869 /* Handle old-fashioned options--just copy them through,
870 with their arguments. */
871 else if (argv[i][0] == '-')
873 char *p = argv[i] + 1;
877 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
878 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
879 else if (WORD_SWITCH_TAKES_ARG (p))
880 nskip += WORD_SWITCH_TAKES_ARG (p);
881 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
884 else if (! strcmp (p, "Xlinker"))
889 newv[newindex++] = argv[i++];
894 /* Ordinary operands, or +e options. */
895 newv[newindex++] = argv[i++];
904 /* Read compilation specs from a file named FILENAME,
905 replacing the default ones.
907 A suffix which starts with `*' is a definition for
908 one of the machine-specific sub-specs. The "suffix" should be
909 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
910 The corresponding spec is stored in asm_spec, etc.,
911 rather than in the `compilers' vector.
913 Anything invalid in the file is a fatal error. */
916 read_specs (filename)
925 fprintf (stderr, "Reading specs from %s\n", filename);
927 /* Open and stat the file. */
928 desc = open (filename, 0, 0);
930 pfatal_with_name (filename);
931 if (stat (filename, &statbuf) < 0)
932 pfatal_with_name (filename);
934 /* Read contents of file into BUFFER. */
935 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
936 read (desc, buffer, (unsigned) statbuf.st_size);
937 buffer[statbuf.st_size] = 0;
940 /* Scan BUFFER for specs, putting them in the vector. */
946 char *in, *out, *p1, *p2;
948 /* Advance P in BUFFER to the next nonblank nocomment line. */
949 p = skip_whitespace (p);
953 /* Find the colon that should end the suffix. */
955 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
956 /* The colon shouldn't be missing. */
958 fatal ("specs file malformed after %d characters", p1 - buffer);
959 /* Skip back over trailing whitespace. */
961 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
962 /* Copy the suffix to a string. */
963 suffix = save_string (p, p2 - p);
964 /* Find the next line. */
965 p = skip_whitespace (p1 + 1);
967 fatal ("specs file malformed after %d characters", p - buffer);
969 /* Find next blank line. */
970 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
971 /* Specs end at the blank line and do not include the newline. */
972 spec = save_string (p, p1 - p);
975 /* Delete backslash-newline sequences from the spec. */
980 if (in[0] == '\\' && in[1] == '\n')
982 else if (in[0] == '#')
984 while (*in && *in != '\n') in++;
991 if (suffix[0] == '*')
993 if (! strcmp (suffix, "*link_command"))
994 link_command_spec = spec;
996 set_spec (suffix + 1, spec);
1000 /* Add this pair to the vector. */
1002 = ((struct compiler *)
1003 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1004 compilers[n_compilers].suffix = suffix;
1005 bzero (compilers[n_compilers].spec,
1006 sizeof compilers[n_compilers].spec);
1007 compilers[n_compilers].spec[0] = spec;
1009 bzero (&compilers[n_compilers], sizeof compilers[n_compilers]);
1013 link_command_spec = spec;
1016 if (link_command_spec == 0)
1017 fatal ("spec file has no spec for linking");
1026 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1027 be considered whitespace. */
1028 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1030 else if (*p == '\n' || *p == ' ' || *p == '\t')
1034 while (*p != '\n') p++;
1044 /* Structure to keep track of the specs that have been defined so far. These
1045 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1049 char *name; /* Name of the spec. */
1050 char *spec; /* The spec itself. */
1051 struct spec_list *next; /* Next spec in linked list. */
1054 /* List of specs that have been defined so far. */
1056 static struct spec_list *specs = (struct spec_list *) 0;
1058 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1059 removed; If the spec starts with a + then SPEC is added to the end of the
1063 set_spec (name, spec)
1067 struct spec_list *sl;
1070 /* See if the spec already exists */
1071 for (sl = specs; sl; sl = sl->next)
1072 if (strcmp (sl->name, name) == 0)
1077 /* Not found - make it */
1078 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1079 sl->name = save_string (name, strlen (name));
1080 sl->spec = save_string ("", 0);
1085 old_spec = sl->spec;
1086 if (name && spec[0] == '+' && isspace (spec[1]))
1087 sl->spec = concat (old_spec, spec + 1, "");
1089 sl->spec = save_string (spec, strlen (spec));
1091 if (! strcmp (name, "asm"))
1092 asm_spec = sl->spec;
1093 else if (! strcmp (name, "asm_final"))
1094 asm_final_spec = sl->spec;
1095 else if (! strcmp (name, "cc1"))
1096 cc1_spec = sl->spec;
1097 else if (! strcmp (name, "cc1plus"))
1098 cc1plus_spec = sl->spec;
1099 else if (! strcmp (name, "cpp"))
1100 cpp_spec = sl->spec;
1101 else if (! strcmp (name, "endfile"))
1102 endfile_spec = sl->spec;
1103 else if (! strcmp (name, "lib"))
1104 lib_spec = sl->spec;
1105 else if (! strcmp (name, "link"))
1106 link_spec = sl->spec;
1107 else if (! strcmp (name, "predefines"))
1108 cpp_predefines = sl->spec;
1109 else if (! strcmp (name, "signed_char"))
1110 signed_char_spec = sl->spec;
1111 else if (! strcmp (name, "startfile"))
1112 startfile_spec = sl->spec;
1113 else if (! strcmp (name, "switches_need_spaces"))
1114 switches_need_spaces = sl->spec;
1115 else if (! strcmp (name, "cross_compile"))
1116 cross_compile = atoi (sl->spec);
1117 /* Free the old spec */
1122 /* Accumulate a command (program name and args), and run it. */
1124 /* Vector of pointers to arguments in the current line of specifications. */
1126 static char **argbuf;
1128 /* Number of elements allocated in argbuf. */
1130 static int argbuf_length;
1132 /* Number of elements in argbuf currently in use (containing args). */
1134 static int argbuf_index;
1136 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1137 temp file. Used only if MKTEMP_EACH_FILE. */
1139 static struct temp_name {
1140 char *suffix; /* suffix associated with the code. */
1141 int length; /* strlen (suffix). */
1142 int unique; /* Indicates whether %g or %u/%U was used. */
1143 char *filename; /* associated filename. */
1144 int filename_length; /* strlen (filename). */
1145 struct temp_name *next;
1148 /* Number of commands executed so far. */
1150 static int execution_count;
1152 /* Number of commands that exited with a signal. */
1154 static int signal_count;
1156 /* Name with which this program was invoked. */
1158 static char *programname;
1160 /* Structures to keep track of prefixes to try when looking for files. */
1164 char *prefix; /* String to prepend to the path. */
1165 struct prefix_list *next; /* Next in linked list. */
1166 int require_machine_suffix; /* Don't use without machine_suffix. */
1167 /* 2 means try both machine_suffix and just_machine_suffix. */
1168 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1173 struct prefix_list *plist; /* List of prefixes to try */
1174 int max_len; /* Max length of a prefix in PLIST */
1175 char *name; /* Name of this list (used in config stuff) */
1178 /* List of prefixes to try when looking for executables. */
1180 static struct path_prefix exec_prefix = { 0, 0, "exec" };
1182 /* List of prefixes to try when looking for startup (crt0) files. */
1184 static struct path_prefix startfile_prefix = { 0, 0, "startfile" };
1186 /* Suffix to attach to directories searched for commands.
1187 This looks like `MACHINE/VERSION/'. */
1189 static char *machine_suffix = 0;
1191 /* Suffix to attach to directories searched for commands.
1192 This is just `MACHINE/'. */
1194 static char *just_machine_suffix = 0;
1196 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1198 static char *gcc_exec_prefix;
1200 /* Default prefixes to attach to command names. */
1202 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1203 #undef MD_EXEC_PREFIX
1204 #undef MD_STARTFILE_PREFIX
1205 #undef MD_STARTFILE_PREFIX_1
1208 #ifndef STANDARD_EXEC_PREFIX
1209 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1210 #endif /* !defined STANDARD_EXEC_PREFIX */
1212 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1213 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1214 #ifdef MD_EXEC_PREFIX
1215 static char *md_exec_prefix = MD_EXEC_PREFIX;
1218 #ifndef STANDARD_STARTFILE_PREFIX
1219 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1220 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1222 #ifdef MD_STARTFILE_PREFIX
1223 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1225 #ifdef MD_STARTFILE_PREFIX_1
1226 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1228 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1229 static char *standard_startfile_prefix_1 = "/lib/";
1230 static char *standard_startfile_prefix_2 = "/usr/lib/";
1232 #ifndef TOOLDIR_BASE_PREFIX
1233 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1235 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1236 static char *tooldir_prefix;
1238 /* Clear out the vector of arguments (after a command is executed). */
1246 /* Add one argument to the vector at the end.
1247 This is done when a space is seen or at the end of the line.
1248 If DELETE_ALWAYS is nonzero, the arg is a filename
1249 and the file should be deleted eventually.
1250 If DELETE_FAILURE is nonzero, the arg is a filename
1251 and the file should be deleted if this compilation fails. */
1254 store_arg (arg, delete_always, delete_failure)
1256 int delete_always, delete_failure;
1258 if (argbuf_index + 1 == argbuf_length)
1260 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1263 argbuf[argbuf_index++] = arg;
1264 argbuf[argbuf_index] = 0;
1266 if (delete_always || delete_failure)
1267 record_temp_file (arg, delete_always, delete_failure);
1270 /* Record the names of temporary files we tell compilers to write,
1271 and delete them at the end of the run. */
1273 /* This is the common prefix we use to make temp file names.
1274 It is chosen once for each run of this program.
1275 It is substituted into a spec by %g.
1276 Thus, all temp file names contain this prefix.
1277 In practice, all temp file names start with this prefix.
1279 This prefix comes from the envvar TMPDIR if it is defined;
1280 otherwise, from the P_tmpdir macro if that is defined;
1281 otherwise, in /usr/tmp or /tmp. */
1283 static char *temp_filename;
1285 /* Length of the prefix. */
1287 static int temp_filename_length;
1289 /* Define the list of temporary files to delete. */
1294 struct temp_file *next;
1297 /* Queue of files to delete on success or failure of compilation. */
1298 static struct temp_file *always_delete_queue;
1299 /* Queue of files to delete on failure of compilation. */
1300 static struct temp_file *failure_delete_queue;
1302 /* Record FILENAME as a file to be deleted automatically.
1303 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1304 otherwise delete it in any case.
1305 FAIL_DELETE nonzero means delete it if a compilation step fails;
1306 otherwise delete it in any case. */
1309 record_temp_file (filename, always_delete, fail_delete)
1314 register char *name;
1315 name = xmalloc (strlen (filename) + 1);
1316 strcpy (name, filename);
1320 register struct temp_file *temp;
1321 for (temp = always_delete_queue; temp; temp = temp->next)
1322 if (! strcmp (name, temp->name))
1324 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1325 temp->next = always_delete_queue;
1327 always_delete_queue = temp;
1333 register struct temp_file *temp;
1334 for (temp = failure_delete_queue; temp; temp = temp->next)
1335 if (! strcmp (name, temp->name))
1337 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1338 temp->next = failure_delete_queue;
1340 failure_delete_queue = temp;
1345 /* Delete all the temporary files whose names we previously recorded. */
1348 delete_temp_files ()
1350 register struct temp_file *temp;
1352 for (temp = always_delete_queue; temp; temp = temp->next)
1356 printf ("Delete %s? (y or n) ", temp->name);
1360 while (getchar () != '\n') ;
1361 if (i == 'y' || i == 'Y')
1365 if (stat (temp->name, &st) >= 0)
1367 /* Delete only ordinary files. */
1368 if (S_ISREG (st.st_mode))
1369 if (unlink (temp->name) < 0)
1371 perror_with_name (temp->name);
1376 always_delete_queue = 0;
1379 /* Delete all the files to be deleted on error. */
1382 delete_failure_queue ()
1384 register struct temp_file *temp;
1386 for (temp = failure_delete_queue; temp; temp = temp->next)
1390 printf ("Delete %s? (y or n) ", temp->name);
1394 while (getchar () != '\n') ;
1395 if (i == 'y' || i == 'Y')
1398 if (unlink (temp->name) < 0)
1400 perror_with_name (temp->name);
1406 clear_failure_queue ()
1408 failure_delete_queue = 0;
1411 /* Compute a string to use as the base of all temporary file names.
1412 It is substituted for %g. */
1415 choose_temp_base_try (try, base)
1422 else if (try == (char *)0)
1424 else if (access (try, R_OK | W_OK) != 0)
1437 base = choose_temp_base_try (getenv ("TMPDIR"), base);
1438 base = choose_temp_base_try (getenv ("TMP"), base);
1439 base = choose_temp_base_try (getenv ("TEMP"), base);
1442 base = choose_temp_base_try (P_tmpdir, base);
1445 base = choose_temp_base_try ("/usr/tmp", base);
1446 base = choose_temp_base_try ("/tmp", base);
1448 /* If all else fails, use the current directory! */
1449 if (base == (char *)0)
1452 len = strlen (base);
1453 temp_filename = xmalloc (len + sizeof("/ccXXXXXX") + 1);
1454 strcpy (temp_filename, base);
1455 if (len > 0 && temp_filename[len-1] != '/')
1456 temp_filename[len++] = '/';
1457 strcpy (temp_filename + len, "ccXXXXXX");
1459 mktemp (temp_filename);
1460 temp_filename_length = strlen (temp_filename);
1461 if (temp_filename_length == 0)
1466 /* Routine to add variables to the environment. We do this to pass
1467 the pathname of the gcc driver, and the directories search to the
1468 collect2 program, which is being run as ld. This way, we can be
1469 sure of executing the right compiler when collect2 wants to build
1470 constructors and destructors. Since the environment variables we
1471 use come from an obstack, we don't have to worry about allocating
1480 #ifndef VMS /* nor about VMS */
1482 extern char **environ;
1483 char **old_environ = environ;
1487 int str_len = strlen (str);
1491 while ((ch = *p++) != '\0' && ch != '=')
1497 /* Search for replacing an existing environment variable, and
1498 count the number of total environment variables. */
1499 for (envp = old_environ; *envp; envp++)
1502 if (!strncmp (str, *envp, name_len))
1509 /* Add a new environment variable */
1510 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1512 bcopy (old_environ, environ+1, sizeof (char *) * (num_envs+1));
1517 #endif /* HAVE_PUTENV */
1520 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1523 putenv_from_prefixes (paths, env_var)
1524 struct path_prefix *paths;
1527 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1529 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1530 int first_time = TRUE;
1531 struct prefix_list *pprefix;
1533 obstack_grow (&collect_obstack, env_var, strlen (env_var));
1535 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1537 int len = strlen (pprefix->prefix);
1540 && is_directory (pprefix->prefix, machine_suffix, 0))
1543 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1546 obstack_grow (&collect_obstack, pprefix->prefix, len);
1547 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1550 if (just_machine_suffix
1551 && pprefix->require_machine_suffix == 2
1552 && is_directory (pprefix->prefix, just_machine_suffix, 0))
1555 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1558 obstack_grow (&collect_obstack, pprefix->prefix, len);
1559 obstack_grow (&collect_obstack, just_machine_suffix,
1563 if (!pprefix->require_machine_suffix)
1566 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1569 obstack_grow (&collect_obstack, pprefix->prefix, len);
1572 obstack_1grow (&collect_obstack, '\0');
1573 putenv (obstack_finish (&collect_obstack));
1577 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1578 access to check permissions.
1579 Return 0 if not found, otherwise return its name, allocated with malloc. */
1582 find_a_file (pprefix, name, mode)
1583 struct path_prefix *pprefix;
1588 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1589 struct prefix_list *pl;
1590 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1593 len += strlen (machine_suffix);
1595 temp = xmalloc (len);
1597 /* Determine the filename to execute (special case for absolute paths). */
1601 if (access (name, mode))
1603 strcpy (temp, name);
1608 for (pl = pprefix->plist; pl; pl = pl->next)
1612 strcpy (temp, pl->prefix);
1613 strcat (temp, machine_suffix);
1614 strcat (temp, name);
1615 if (access (temp, mode) == 0)
1617 if (pl->used_flag_ptr != 0)
1618 *pl->used_flag_ptr = 1;
1621 /* Some systems have a suffix for executable files.
1622 So try appending that. */
1623 if (file_suffix[0] != 0)
1625 strcat (temp, file_suffix);
1626 if (access (temp, mode) == 0)
1628 if (pl->used_flag_ptr != 0)
1629 *pl->used_flag_ptr = 1;
1634 /* Certain prefixes are tried with just the machine type,
1635 not the version. This is used for finding as, ld, etc. */
1636 if (just_machine_suffix && pl->require_machine_suffix == 2)
1638 strcpy (temp, pl->prefix);
1639 strcat (temp, just_machine_suffix);
1640 strcat (temp, name);
1641 if (access (temp, mode) == 0)
1643 if (pl->used_flag_ptr != 0)
1644 *pl->used_flag_ptr = 1;
1647 /* Some systems have a suffix for executable files.
1648 So try appending that. */
1649 if (file_suffix[0] != 0)
1651 strcat (temp, file_suffix);
1652 if (access (temp, mode) == 0)
1654 if (pl->used_flag_ptr != 0)
1655 *pl->used_flag_ptr = 1;
1660 /* Certain prefixes can't be used without the machine suffix
1661 when the machine or version is explicitly specified. */
1662 if (!pl->require_machine_suffix)
1664 strcpy (temp, pl->prefix);
1665 strcat (temp, name);
1666 if (access (temp, mode) == 0)
1668 if (pl->used_flag_ptr != 0)
1669 *pl->used_flag_ptr = 1;
1672 /* Some systems have a suffix for executable files.
1673 So try appending that. */
1674 if (file_suffix[0] != 0)
1676 strcat (temp, file_suffix);
1677 if (access (temp, mode) == 0)
1679 if (pl->used_flag_ptr != 0)
1680 *pl->used_flag_ptr = 1;
1691 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1692 at the start of the list, otherwise it goes at the end.
1694 If WARN is nonzero, we will warn if no file is found
1695 through this prefix. WARN should point to an int
1696 which will be set to 1 if this entry is used.
1698 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1699 the complete value of machine_suffix.
1700 2 means try both machine_suffix and just_machine_suffix. */
1703 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1704 struct path_prefix *pprefix;
1707 int require_machine_suffix;
1710 struct prefix_list *pl, **prev;
1713 if (!first && pprefix->plist)
1715 for (pl = pprefix->plist; pl->next; pl = pl->next)
1720 prev = &pprefix->plist;
1722 /* Keep track of the longest prefix */
1724 len = strlen (prefix);
1725 if (len > pprefix->max_len)
1726 pprefix->max_len = len;
1728 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1729 pl->prefix = save_string (prefix, len);
1730 pl->require_machine_suffix = require_machine_suffix;
1731 pl->used_flag_ptr = warn;
1738 pl->next = (struct prefix_list *) 0;
1742 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1745 unused_prefix_warnings (pprefix)
1746 struct path_prefix *pprefix;
1748 struct prefix_list *pl = pprefix->plist;
1752 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1754 error ("file path prefix `%s' never used",
1756 /* Prevent duplicate warnings. */
1757 *pl->used_flag_ptr = 1;
1763 /* Get rid of all prefixes built up so far in *PLISTP. */
1766 free_path_prefix (pprefix)
1767 struct path_prefix *pprefix;
1769 struct prefix_list *pl = pprefix->plist;
1770 struct prefix_list *temp;
1776 free (temp->prefix);
1777 free ((char *) temp);
1779 pprefix->plist = (struct prefix_list *) 0;
1782 /* stdin file number. */
1783 #define STDIN_FILE_NO 0
1785 /* stdout file number. */
1786 #define STDOUT_FILE_NO 1
1788 /* value of `pipe': port index for reading. */
1791 /* value of `pipe': port index for writing. */
1792 #define WRITE_PORT 1
1794 /* Pipe waiting from last process, to be used as input for the next one.
1795 Value is STDIN_FILE_NO if no pipe is waiting
1796 (i.e. the next command is the first of a group). */
1798 static int last_pipe_input;
1800 /* Fork one piped subcommand. FUNC is the system call to use
1801 (either execv or execvp). ARGV is the arg vector to use.
1802 NOT_LAST is nonzero if this is not the last subcommand
1803 (i.e. its output should be piped to the next one.) */
1808 /* Declare these to avoid compilation error. They won't be called. */
1809 int execv(const char *a, const char **b){}
1810 int execvp(const char *a, const char **b){}
1813 pexecute (search_flag, program, argv, not_last)
1821 int i, el = search_flag ? 0 : 4;
1823 scmd = (char *)malloc (strlen (program) + strlen (temp_filename) + 6 + el);
1824 rf = scmd + strlen(program) + 2 + el;
1825 sprintf (scmd, "%s%s @%s.gp", program,
1826 (search_flag ? "" : ".exe"), temp_filename);
1827 argfile = fopen (rf, "w");
1829 pfatal_with_name (rf);
1831 for (i=1; argv[i]; i++)
1834 for (cp = argv[i]; *cp; cp++)
1836 if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp))
1837 fputc ('\\', argfile);
1838 fputc (*cp, argfile);
1840 fputc ('\n', argfile);
1850 perror_exec (program);
1851 return MIN_FATAL_STATUS << 8;
1857 #else /* not __MSDOS__ */
1860 pexecute (search_flag, program, argv, not_last)
1866 int (*func)() = (search_flag ? execv : execvp);
1869 int input_desc = last_pipe_input;
1870 int output_desc = STDOUT_FILE_NO;
1871 int retries, sleep_interval;
1873 /* If this isn't the last process, make a pipe for its output,
1874 and record it as waiting to be the input to the next process. */
1878 if (pipe (pdes) < 0)
1879 pfatal_with_name ("pipe");
1880 output_desc = pdes[WRITE_PORT];
1881 last_pipe_input = pdes[READ_PORT];
1884 last_pipe_input = STDIN_FILE_NO;
1886 /* Fork a subprocess; wait and retry if it fails. */
1888 for (retries = 0; retries < 4; retries++)
1893 sleep (sleep_interval);
1894 sleep_interval *= 2;
1901 pfatal_with_name ("fork");
1903 pfatal_with_name ("vfork");
1909 /* Move the input and output pipes into place, if nec. */
1910 if (input_desc != STDIN_FILE_NO)
1912 close (STDIN_FILE_NO);
1916 if (output_desc != STDOUT_FILE_NO)
1918 close (STDOUT_FILE_NO);
1920 close (output_desc);
1923 /* Close the parent's descs that aren't wanted here. */
1924 if (last_pipe_input != STDIN_FILE_NO)
1925 close (last_pipe_input);
1927 /* Exec the program. */
1928 (*func) (program, argv);
1929 perror_exec (program);
1935 /* In the parent, after forking.
1936 Close the descriptors that we made for this child. */
1937 if (input_desc != STDIN_FILE_NO)
1939 if (output_desc != STDOUT_FILE_NO)
1940 close (output_desc);
1942 /* Return child's process number. */
1947 #endif /* not __MSDOS__ */
1951 pexecute (search_flag, program, argv, not_last)
1957 return (search_flag ? spawnv : spawnvp) (1, program, argv);
1959 #endif /* not OS2 */
1961 /* Execute the command specified by the arguments on the current line of spec.
1962 When using pipes, this includes several piped-together commands
1963 with `|' between them.
1965 Return 0 if successful, -1 if failed. */
1971 int n_commands; /* # of command. */
1975 char *prog; /* program name. */
1976 char **argv; /* vector of args. */
1977 int pid; /* pid of process for this command. */
1980 struct command *commands; /* each command buffer with above info. */
1982 /* Count # of piped commands. */
1983 for (n_commands = 1, i = 0; i < argbuf_index; i++)
1984 if (strcmp (argbuf[i], "|") == 0)
1987 /* Get storage for each command. */
1989 = (struct command *) alloca (n_commands * sizeof (struct command));
1991 /* Split argbuf into its separate piped processes,
1992 and record info about each one.
1993 Also search for the programs that are to be run. */
1995 commands[0].prog = argbuf[0]; /* first command. */
1996 commands[0].argv = &argbuf[0];
1997 string = find_a_file (&exec_prefix, commands[0].prog, X_OK);
1999 commands[0].argv[0] = string;
2001 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2002 if (strcmp (argbuf[i], "|") == 0)
2003 { /* each command. */
2005 fatal ("-pipe not supported under MS-DOS");
2007 argbuf[i] = 0; /* termination of command args. */
2008 commands[n_commands].prog = argbuf[i + 1];
2009 commands[n_commands].argv = &argbuf[i + 1];
2010 string = find_a_file (&exec_prefix, commands[n_commands].prog, X_OK);
2012 commands[n_commands].argv[0] = string;
2016 argbuf[argbuf_index] = 0;
2018 /* If -v, print what we are about to do, and maybe query. */
2022 /* Print each piped command as a separate line. */
2023 for (i = 0; i < n_commands ; i++)
2027 for (j = commands[i].argv; *j; j++)
2028 fprintf (stderr, " %s", *j);
2030 /* Print a pipe symbol after all but the last command. */
2031 if (i + 1 != n_commands)
2032 fprintf (stderr, " |");
2033 fprintf (stderr, "\n");
2037 fprintf (stderr, "\nGo ahead? (y or n) ");
2041 while (getchar () != '\n') ;
2042 if (i != 'y' && i != 'Y')
2047 /* Run each piped subprocess. */
2049 last_pipe_input = STDIN_FILE_NO;
2050 for (i = 0; i < n_commands; i++)
2052 char *string = commands[i].argv[0];
2054 commands[i].pid = pexecute (string != commands[i].prog,
2055 string, commands[i].argv,
2056 i + 1 < n_commands);
2058 if (string != commands[i].prog)
2064 /* Wait for all the subprocesses to finish.
2065 We don't care what order they finish in;
2066 we know that N_COMMANDS waits will get them all. */
2071 for (i = 0; i < n_commands; i++)
2075 char *prog = "unknown";
2078 status = pid = commands[i].pid;
2080 pid = wait (&status);
2088 for (j = 0; j < n_commands; j++)
2089 if (commands[j].pid == pid)
2090 prog = commands[j].prog;
2092 if ((status & 0x7F) != 0)
2094 fatal ("Internal compiler error: program %s got fatal signal %d",
2095 prog, (status & 0x7F));
2098 if (((status & 0xFF00) >> 8) >= MIN_FATAL_STATUS)
2106 /* Find all the switches given to us
2107 and make a vector describing them.
2108 The elements of the vector are strings, one per switch given.
2109 If a switch uses following arguments, then the `part1' field
2110 is the switch itself and the `args' field
2111 is a null-terminated vector containing the following arguments.
2112 The `valid' field is nonzero if any spec has looked at this switch;
2113 if it remains zero at the end of the run, it must be meaningless. */
2122 static struct switchstr *switches;
2124 static int n_switches;
2132 /* Also a vector of input files specified. */
2134 static struct infile *infiles;
2136 static int n_infiles;
2138 /* And a vector of corresponding output files is made up later. */
2140 static char **outfiles;
2142 /* Create the vector `switches' and its contents.
2143 Store its length in `n_switches'. */
2146 process_command (argc, argv)
2152 char *spec_lang = 0;
2153 int last_language_n_infiles;
2155 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2160 /* Figure compiler version from version string. */
2162 compiler_version = save_string (version_string, strlen (version_string));
2163 for (temp = compiler_version; *temp; ++temp)
2172 /* Set up the default search paths. */
2174 if (gcc_exec_prefix)
2176 add_prefix (&exec_prefix, gcc_exec_prefix, 0, 0, NULL_PTR);
2177 add_prefix (&startfile_prefix, gcc_exec_prefix, 0, 0, NULL_PTR);
2180 /* COMPILER_PATH and LIBRARY_PATH have values
2181 that are lists of directory names with colons. */
2183 temp = getenv ("COMPILER_PATH");
2186 char *startp, *endp;
2187 char *nstore = (char *) alloca (strlen (temp) + 3);
2189 startp = endp = temp;
2192 if (*endp == PATH_SEPARATOR || *endp == 0)
2194 strncpy (nstore, startp, endp-startp);
2197 strcpy (nstore, "./");
2199 else if (endp[-1] != '/')
2201 nstore[endp-startp] = '/';
2202 nstore[endp-startp+1] = 0;
2205 nstore[endp-startp] = 0;
2206 add_prefix (&exec_prefix, nstore, 0, 0, NULL_PTR);
2209 endp = startp = endp + 1;
2216 temp = getenv ("LIBRARY_PATH");
2219 char *startp, *endp;
2220 char *nstore = (char *) alloca (strlen (temp) + 3);
2222 startp = endp = temp;
2225 if (*endp == PATH_SEPARATOR || *endp == 0)
2227 strncpy (nstore, startp, endp-startp);
2230 strcpy (nstore, "./");
2232 else if (endp[-1] != '/')
2234 nstore[endp-startp] = '/';
2235 nstore[endp-startp+1] = 0;
2238 nstore[endp-startp] = 0;
2239 add_prefix (&startfile_prefix, nstore, 0, 0, NULL_PTR);
2242 endp = startp = endp + 1;
2249 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2250 temp = getenv ("LPATH");
2253 char *startp, *endp;
2254 char *nstore = (char *) alloca (strlen (temp) + 3);
2256 startp = endp = temp;
2259 if (*endp == PATH_SEPARATOR || *endp == 0)
2261 strncpy (nstore, startp, endp-startp);
2264 strcpy (nstore, "./");
2266 else if (endp[-1] != '/')
2268 nstore[endp-startp] = '/';
2269 nstore[endp-startp+1] = 0;
2272 nstore[endp-startp] = 0;
2273 add_prefix (&startfile_prefix, nstore, 0, 0, NULL_PTR);
2276 endp = startp = endp + 1;
2283 /* Convert new-style -- options to old-style. */
2284 translate_options (&argc, &argv);
2286 /* Scan argv twice. Here, the first time, just count how many switches
2287 there will be in their vector, and how many input files in theirs.
2288 Here we also parse the switches that cc itself uses (e.g. -v). */
2290 for (i = 1; i < argc; i++)
2292 if (! strcmp (argv[i], "-dumpspecs"))
2294 printf ("*asm:\n%s\n\n", asm_spec);
2295 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2296 printf ("*cpp:\n%s\n\n", cpp_spec);
2297 printf ("*cc1:\n%s\n\n", cc1_spec);
2298 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2299 printf ("*endfile:\n%s\n\n", endfile_spec);
2300 printf ("*link:\n%s\n\n", link_spec);
2301 printf ("*lib:\n%s\n\n", lib_spec);
2302 printf ("*startfile:\n%s\n\n", startfile_spec);
2303 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2304 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2305 printf ("*predefines:\n%s\n\n", cpp_predefines);
2306 printf ("*cross_compile:\n%d\n\n", cross_compile);
2310 else if (! strcmp (argv[i], "-dumpversion"))
2312 printf ("%s\n", version_string);
2315 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2317 print_libgcc_file_name = 1;
2319 else if (! strcmp (argv[i], "-Xlinker"))
2321 /* Pass the argument of this option to the linker when we link. */
2324 fatal ("argument to `-Xlinker' is missing");
2327 if (!linker_options)
2329 = (char **) xmalloc (n_linker_options * sizeof (char **));
2332 = (char **) xrealloc (linker_options,
2333 n_linker_options * sizeof (char **));
2335 linker_options[n_linker_options - 1] = argv[++i];
2337 else if (! strncmp (argv[i], "-Wl,", 4))
2340 /* Pass the rest of this option to the linker when we link. */
2343 if (!linker_options)
2345 = (char **) xmalloc (n_linker_options * sizeof (char **));
2348 = (char **) xrealloc (linker_options,
2349 n_linker_options * sizeof (char **));
2351 /* Split the argument at commas. */
2353 for (j = 4; argv[i][j]; j++)
2354 if (argv[i][j] == ',')
2356 linker_options[n_linker_options - 1]
2357 = save_string (argv[i] + prev, j - prev);
2360 = (char **) xrealloc (linker_options,
2361 n_linker_options * sizeof (char **));
2364 /* Record the part after the last comma. */
2365 linker_options[n_linker_options - 1] = argv[i] + prev;
2367 else if (! strncmp (argv[i], "-Wa,", 4))
2370 /* Pass the rest of this option to the assembler. */
2372 n_assembler_options++;
2373 if (!assembler_options)
2375 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2378 = (char **) xrealloc (assembler_options,
2379 n_assembler_options * sizeof (char **));
2381 /* Split the argument at commas. */
2383 for (j = 4; argv[i][j]; j++)
2384 if (argv[i][j] == ',')
2386 assembler_options[n_assembler_options - 1]
2387 = save_string (argv[i] + prev, j - prev);
2388 n_assembler_options++;
2390 = (char **) xrealloc (assembler_options,
2391 n_assembler_options * sizeof (char **));
2394 /* Record the part after the last comma. */
2395 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2397 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2398 /* The +e options to the C++ front-end. */
2400 else if (argv[i][0] == '-' && argv[i][1] != 0 && argv[i][1] != 'l')
2402 register char *p = &argv[i][1];
2403 register int c = *p;
2408 if (p[1] == 0 && i + 1 == argc)
2409 fatal ("argument to `-b' is missing");
2411 spec_machine = argv[++i];
2413 spec_machine = p + 1;
2418 int *temp = (int *) xmalloc (sizeof (int));
2420 if (p[1] == 0 && i + 1 == argc)
2421 fatal ("argument to `-B' is missing");
2426 add_prefix (&exec_prefix, value, 1, 0, temp);
2427 add_prefix (&startfile_prefix, value, 1, 0, temp);
2431 case 'v': /* Print our subcommands and print versions. */
2433 /* If they do anything other than exactly `-v', don't set
2434 verbose_flag; rather, continue on to give the error. */
2441 if (p[1] == 0 && i + 1 == argc)
2442 fatal ("argument to `-V' is missing");
2444 spec_version = argv[++i];
2446 spec_version = p + 1;
2447 compiler_version = spec_version;
2451 if (!strcmp (p, "save-temps"))
2453 save_temps_flag = 1;
2460 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2461 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2462 else if (WORD_SWITCH_TAKES_ARG (p))
2463 i += WORD_SWITCH_TAKES_ARG (p);
2470 /* Set up the search paths before we go looking for config files. */
2472 /* These come before the md prefixes so that we will find gcc's subcommands
2473 (such as cpp) rather than those of the host system. */
2474 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2475 as well as trying the machine and the version. */
2476 add_prefix (&exec_prefix, standard_exec_prefix, 0, 2, NULL_PTR);
2477 add_prefix (&exec_prefix, standard_exec_prefix_1, 0, 2, NULL_PTR);
2479 add_prefix (&startfile_prefix, standard_exec_prefix, 0, 1, NULL_PTR);
2480 add_prefix (&startfile_prefix, standard_exec_prefix_1, 0, 1, NULL_PTR);
2482 tooldir_prefix = concat (tooldir_base_prefix, spec_machine, "/");
2484 /* If tooldir is relative, base it on exec_prefix. A relative
2485 tooldir lets us move the installed tree as a unit.
2487 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2488 directories, so that we can search both the user specified directory
2489 and the standard place. */
2491 if (*tooldir_prefix != '/')
2493 if (gcc_exec_prefix)
2495 char *gcc_exec_tooldir_prefix
2496 = concat (concat (gcc_exec_prefix, spec_machine, "/"),
2497 concat (spec_version, "/", tooldir_prefix),
2500 add_prefix (&exec_prefix, concat (gcc_exec_tooldir_prefix, "bin", "/"),
2502 add_prefix (&startfile_prefix, concat (gcc_exec_tooldir_prefix, "lib", "/"),
2506 tooldir_prefix = concat (concat (standard_exec_prefix, spec_machine, "/"),
2507 concat (spec_version, "/", tooldir_prefix),
2511 add_prefix (&exec_prefix, concat (tooldir_prefix, "bin", "/"),
2513 add_prefix (&startfile_prefix, concat (tooldir_prefix, "lib", "/"),
2516 /* More prefixes are enabled in main, after we read the specs file
2517 and determine whether this is cross-compilation or not. */
2520 /* Then create the space for the vectors and scan again. */
2522 switches = ((struct switchstr *)
2523 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2524 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2527 last_language_n_infiles = -1;
2529 /* This, time, copy the text of each switch and store a pointer
2530 to the copy in the vector of switches.
2531 Store all the infiles in their vector. */
2533 for (i = 1; i < argc; i++)
2535 /* Just skip the switches that were handled by the preceding loop. */
2536 if (!strcmp (argv[i], "-Xlinker"))
2538 else if (! strncmp (argv[i], "-Wl,", 4))
2540 else if (! strncmp (argv[i], "-Wa,", 4))
2542 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2544 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2546 /* Compensate for the +e options to the C++ front-end;
2547 they're there simply for cfront call-compatibility. We do
2548 some magic in default_compilers to pass them down properly.
2549 Note we deliberately start at the `+' here, to avoid passing
2550 -e0 or -e1 down into the linker. */
2551 switches[n_switches].part1 = &argv[i][0];
2552 switches[n_switches].args = 0;
2553 switches[n_switches].valid = 0;
2556 else if (argv[i][0] == '-' && argv[i][1] != 0 && argv[i][1] != 'l')
2558 register char *p = &argv[i][1];
2559 register int c = *p;
2561 if (c == 'B' || c == 'b' || c == 'V')
2563 /* Skip a separate arg, if any. */
2570 if (p[1] == 0 && i + 1 == argc)
2571 fatal ("argument to `-x' is missing");
2573 spec_lang = argv[++i];
2576 if (! strcmp (spec_lang, "none"))
2577 /* Suppress the warning if -xnone comes after the last input file,
2578 because alternate command interfaces like g++ might find it
2579 useful to place -xnone after each input file. */
2582 last_language_n_infiles = n_infiles;
2585 switches[n_switches].part1 = p;
2586 /* Deal with option arguments in separate argv elements. */
2587 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2588 || WORD_SWITCH_TAKES_ARG (p))
2591 int n_args = WORD_SWITCH_TAKES_ARG (p);
2595 /* Count only the option arguments in separate argv elements. */
2596 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2598 if (i + n_args >= argc)
2599 fatal ("argument to `-%s' is missing", p);
2600 switches[n_switches].args
2601 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2603 switches[n_switches].args[j++] = argv[++i];
2604 /* Null-terminate the vector. */
2605 switches[n_switches].args[j] = 0;
2607 else if (*switches_need_spaces != 0 && (c == 'o' || c == 'L'))
2609 /* On some systems, ld cannot handle -o or -L without space.
2610 So split the -o or -L from its argument. */
2611 switches[n_switches].part1 = (c == 'o' ? "o" : "L");
2612 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2613 switches[n_switches].args[0] = xmalloc (strlen (p));
2614 strcpy (switches[n_switches].args[0], &p[1]);
2615 switches[n_switches].args[1] = 0;
2618 switches[n_switches].args = 0;
2619 switches[n_switches].valid = 0;
2620 /* This is always valid, since gcc.c itself understands it. */
2621 if (!strcmp (p, "save-temps"))
2622 switches[n_switches].valid = 1;
2627 if ((argv[i][0] != '-' || argv[i][1] != 'l')
2628 && strcmp (argv[i], "-")
2629 && access (argv[i], R_OK) < 0)
2631 perror_with_name (argv[i]);
2636 infiles[n_infiles].language = spec_lang;
2637 infiles[n_infiles++].name = argv[i];
2642 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2643 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2645 switches[n_switches].part1 = 0;
2646 infiles[n_infiles].name = 0;
2648 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
2649 if (gcc_exec_prefix)
2651 temp = (char *) xmalloc (strlen (gcc_exec_prefix) + strlen (spec_version)
2652 + strlen (spec_machine) + 3);
2653 strcpy (temp, gcc_exec_prefix);
2654 strcat (temp, spec_machine);
2656 strcat (temp, spec_version);
2658 gcc_exec_prefix = temp;
2662 /* Process a spec string, accumulating and running commands. */
2664 /* These variables describe the input file name.
2665 input_file_number is the index on outfiles of this file,
2666 so that the output file name can be stored for later use by %o.
2667 input_basename is the start of the part of the input file
2668 sans all directory names, and basename_length is the number
2669 of characters starting there excluding the suffix .c or whatever. */
2671 static char *input_filename;
2672 static int input_file_number;
2673 static int input_filename_length;
2674 static int basename_length;
2675 static char *input_basename;
2676 static char *input_suffix;
2678 /* These are variables used within do_spec and do_spec_1. */
2680 /* Nonzero if an arg has been started and not yet terminated
2681 (with space, tab or newline). */
2682 static int arg_going;
2684 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2685 is a temporary file name. */
2686 static int delete_this_arg;
2688 /* Nonzero means %w has been seen; the next arg to be terminated
2689 is the output file name of this compilation. */
2690 static int this_is_output_file;
2692 /* Nonzero means %s has been seen; the next arg to be terminated
2693 is the name of a library file and we should try the standard
2694 search dirs for it. */
2695 static int this_is_library_file;
2697 /* Nonzero means that the input of this command is coming from a pipe. */
2698 static int input_from_pipe;
2700 /* Process the spec SPEC and run the commands specified therein.
2701 Returns 0 if the spec is successfully processed; -1 if failed. */
2711 delete_this_arg = 0;
2712 this_is_output_file = 0;
2713 this_is_library_file = 0;
2714 input_from_pipe = 0;
2716 value = do_spec_1 (spec, 0, NULL_PTR);
2718 /* Force out any unfinished command.
2719 If -pipe, this forces out the last command if it ended in `|'. */
2722 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2725 if (argbuf_index > 0)
2732 /* Process the sub-spec SPEC as a portion of a larger spec.
2733 This is like processing a whole spec except that we do
2734 not initialize at the beginning and we do not supply a
2735 newline by default at the end.
2736 INSWITCH nonzero means don't process %-sequences in SPEC;
2737 in this case, % is treated as an ordinary character.
2738 This is used while substituting switches.
2739 INSWITCH nonzero also causes SPC not to terminate an argument.
2741 Value is zero unless a line was finished
2742 and the command on that line reported an error. */
2745 do_spec_1 (spec, inswitch, soft_matched_part)
2748 char *soft_matched_part;
2750 register char *p = spec;
2757 /* If substituting a switch, treat all chars like letters.
2758 Otherwise, NL, SPC, TAB and % are special. */
2759 switch (inswitch ? 'a' : c)
2762 /* End of line: finish any pending argument,
2763 then run the pending command if one has been started. */
2766 obstack_1grow (&obstack, 0);
2767 string = obstack_finish (&obstack);
2768 if (this_is_library_file)
2769 string = find_file (string);
2770 store_arg (string, delete_this_arg, this_is_output_file);
2771 if (this_is_output_file)
2772 outfiles[input_file_number] = string;
2776 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2779 for (i = 0; i < n_switches; i++)
2780 if (!strcmp (switches[i].part1, "pipe"))
2783 /* A `|' before the newline means use a pipe here,
2784 but only if -pipe was specified.
2785 Otherwise, execute now and don't pass the `|' as an arg. */
2788 input_from_pipe = 1;
2789 switches[i].valid = 1;
2796 if (argbuf_index > 0)
2802 /* Reinitialize for a new command, and for a new argument. */
2805 delete_this_arg = 0;
2806 this_is_output_file = 0;
2807 this_is_library_file = 0;
2808 input_from_pipe = 0;
2812 /* End any pending argument. */
2815 obstack_1grow (&obstack, 0);
2816 string = obstack_finish (&obstack);
2817 if (this_is_library_file)
2818 string = find_file (string);
2819 store_arg (string, delete_this_arg, this_is_output_file);
2820 if (this_is_output_file)
2821 outfiles[input_file_number] = string;
2825 obstack_1grow (&obstack, c);
2831 /* Space or tab ends an argument if one is pending. */
2834 obstack_1grow (&obstack, 0);
2835 string = obstack_finish (&obstack);
2836 if (this_is_library_file)
2837 string = find_file (string);
2838 store_arg (string, delete_this_arg, this_is_output_file);
2839 if (this_is_output_file)
2840 outfiles[input_file_number] = string;
2842 /* Reinitialize for a new argument. */
2844 delete_this_arg = 0;
2845 this_is_output_file = 0;
2846 this_is_library_file = 0;
2853 fatal ("Invalid specification! Bug in cc.");
2856 obstack_grow (&obstack, input_basename, basename_length);
2861 delete_this_arg = 2;
2864 /* Dump out the directories specified with LIBRARY_PATH,
2865 followed by the absolute directories
2866 that we search for startfiles. */
2869 struct prefix_list *pl = startfile_prefix.plist;
2871 char *buffer = (char *) xmalloc (bufsize);
2874 for (; pl; pl = pl->next)
2876 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
2877 /* Used on systems which record the specified -L dirs
2878 and use them to search for dynamic linking. */
2879 /* Relative directories always come from -B,
2880 and it is better not to use them for searching
2881 at run time. In particular, stage1 loses */
2882 if (pl->prefix[0] != '/')
2887 if (is_directory (pl->prefix, machine_suffix, 1))
2889 do_spec_1 ("-L", 0, NULL_PTR);
2890 #ifdef SPACE_AFTER_L_OPTION
2891 do_spec_1 (" ", 0, NULL_PTR);
2893 do_spec_1 (pl->prefix, 1, NULL_PTR);
2894 /* Remove slash from machine_suffix. */
2895 if (strlen (machine_suffix) >= bufsize)
2896 bufsize = strlen (machine_suffix) * 2 + 1;
2897 buffer = (char *) xrealloc (buffer, bufsize);
2898 strcpy (buffer, machine_suffix);
2899 idx = strlen (buffer);
2900 if (buffer[idx - 1] == '/')
2901 buffer[idx - 1] = 0;
2902 do_spec_1 (buffer, 1, NULL_PTR);
2903 /* Make this a separate argument. */
2904 do_spec_1 (" ", 0, NULL_PTR);
2907 if (!pl->require_machine_suffix)
2909 if (is_directory (pl->prefix, "", 1))
2911 do_spec_1 ("-L", 0, NULL_PTR);
2912 #ifdef SPACE_AFTER_L_OPTION
2913 do_spec_1 (" ", 0, NULL_PTR);
2915 /* Remove slash from pl->prefix. */
2916 if (strlen (pl->prefix) >= bufsize)
2917 bufsize = strlen (pl->prefix) * 2 + 1;
2918 buffer = (char *) xrealloc (buffer, bufsize);
2919 strcpy (buffer, pl->prefix);
2920 idx = strlen (buffer);
2921 if (buffer[idx - 1] == '/')
2922 buffer[idx - 1] = 0;
2923 do_spec_1 (buffer, 1, NULL_PTR);
2924 /* Make this a separate argument. */
2925 do_spec_1 (" ", 0, NULL_PTR);
2934 /* {...:%efoo} means report an error with `foo' as error message
2935 and don't execute any more commands for this file. */
2939 while (*p != 0 && *p != '\n') p++;
2940 buf = (char *) alloca (p - q + 1);
2941 strncpy (buf, q, p - q);
2951 if (save_temps_flag)
2952 obstack_grow (&obstack, input_basename, basename_length);
2955 #ifdef MKTEMP_EACH_FILE
2956 /* ??? This has a problem: the total number of
2957 values mktemp can return is limited.
2958 That matters for the names of object files.
2959 In 2.4, do something about that. */
2960 struct temp_name *t;
2962 while (*p == '.' || isalpha (*p))
2965 /* See if we already have an association of %g/%u/%U and
2967 for (t = temp_names; t; t = t->next)
2968 if (t->length == p - suffix
2969 && strncmp (t->suffix, suffix, p - suffix) == 0
2970 && t->unique == (c != 'g'))
2973 /* Make a new association if needed. %u requires one. */
2974 if (t == 0 || c == 'u')
2978 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
2979 t->next = temp_names;
2982 t->length = p - suffix;
2983 t->suffix = save_string (suffix, p - suffix);
2984 t->unique = (c != 'g');
2985 choose_temp_base ();
2986 t->filename = temp_filename;
2987 t->filename_length = temp_filename_length;
2990 obstack_grow (&obstack, t->filename, t->filename_length);
2991 delete_this_arg = 1;
2993 obstack_grow (&obstack, temp_filename, temp_filename_length);
2994 if (c == 'u' || c == 'U')
3000 sprintf (buff, "%d", unique);
3001 obstack_grow (&obstack, buff, strlen (buff));
3004 delete_this_arg = 1;
3010 obstack_grow (&obstack, input_filename, input_filename_length);
3015 if (gcc_exec_prefix)
3017 do_spec_1 ("-iprefix", 1, NULL_PTR);
3018 /* Make this a separate argument. */
3019 do_spec_1 (" ", 0, NULL_PTR);
3020 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3021 do_spec_1 (" ", 0, NULL_PTR);
3028 for (f = 0; f < n_infiles; f++)
3029 store_arg (outfiles[f], 0, 0);
3034 this_is_library_file = 1;
3038 this_is_output_file = 1;
3043 int index = argbuf_index;
3044 /* Handle the {...} following the %W. */
3047 p = handle_braces (p + 1);
3050 /* If any args were output, mark the last one for deletion
3052 if (argbuf_index != index)
3053 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3057 /* %x{OPTION} records OPTION for %X to output. */
3063 /* Skip past the option value and make a copy. */
3068 string = save_string (p1 + 1, p - p1 - 2);
3070 /* See if we already recorded this option. */
3071 for (i = 0; i < n_linker_options; i++)
3072 if (! strcmp (string, linker_options[i]))
3078 /* This option is new; add it. */
3080 if (!linker_options)
3082 = (char **) xmalloc (n_linker_options * sizeof (char **));
3085 = (char **) xrealloc (linker_options,
3086 n_linker_options * sizeof (char **));
3088 linker_options[n_linker_options - 1] = string;
3092 /* Dump out the options accumulated previously using %x,
3093 -Xlinker and -Wl,. */
3095 for (i = 0; i < n_linker_options; i++)
3097 do_spec_1 (linker_options[i], 1, NULL_PTR);
3098 /* Make each accumulated option a separate argument. */
3099 do_spec_1 (" ", 0, NULL_PTR);
3103 /* Dump out the options accumulated previously using -Wa,. */
3105 for (i = 0; i < n_assembler_options; i++)
3107 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3108 /* Make each accumulated option a separate argument. */
3109 do_spec_1 (" ", 0, NULL_PTR);
3113 /* Here are digits and numbers that just process
3114 a certain constant string as a spec. */
3117 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3123 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3129 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3135 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3141 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3147 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3153 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3159 value = do_spec_1 (link_spec, 0, NULL_PTR);
3165 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3172 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3176 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3180 if (! strncmp (y, "-D", 2))
3181 /* Copy the whole option. */
3182 while (*y && *y != ' ' && *y != '\t')
3184 else if (*y == ' ' || *y == '\t')
3185 /* Copy whitespace to the result. */
3187 /* Don't copy other options. */
3194 value = do_spec_1 (buf, 0, NULL_PTR);
3202 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3206 /* Copy all of CPP_PREDEFINES into BUF,
3207 but put __ after every -D and at the end of each arg. */
3211 if (! strncmp (y, "-D", 2))
3218 if (strncmp (y, "__", 2))
3220 /* Stick __ at front of macro name. */
3223 /* Arrange to stick __ at the end as well. */
3227 /* Copy the macro name. */
3228 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3237 /* Copy the value given, if any. */
3238 while (*y && *y != ' ' && *y != '\t')
3241 else if (*y == ' ' || *y == '\t')
3242 /* Copy whitespace to the result. */
3244 /* Don't copy -A options */
3250 /* Copy all of CPP_PREDEFINES into BUF,
3251 but put __ after every -D. */
3255 if (! strncmp (y, "-D", 2))
3260 if (strncmp (y, "__", 2))
3262 /* Stick __ at front of macro name. */
3267 /* Copy the macro name. */
3268 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3271 /* Copy the value given, if any. */
3272 while (*y && *y != ' ' && *y != '\t')
3275 else if (*y == ' ' || *y == '\t')
3276 /* Copy whitespace to the result. */
3278 /* Don't copy -A options */
3284 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3288 if (! strncmp (y, "-A", 2))
3289 /* Copy the whole option. */
3290 while (*y && *y != ' ' && *y != '\t')
3292 else if (*y == ' ' || *y == '\t')
3293 /* Copy whitespace to the result. */
3295 /* Don't copy other options. */
3302 value = do_spec_1 (buf, 0, NULL_PTR);
3309 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3314 /* Here we define characters other than letters and digits. */
3317 p = handle_braces (p);
3323 obstack_1grow (&obstack, '%');
3327 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3328 do_spec_1 (" ", 0, NULL_PTR);
3331 /* Process a string found as the value of a spec given by name.
3332 This feature allows individual machine descriptions
3333 to add and use their own specs.
3334 %[...] modifies -D options the way %P does;
3335 %(...) uses the spec unmodified. */
3340 struct spec_list *sl;
3343 /* The string after the S/P is the name of a spec that is to be
3345 while (*p && *p != ')' && *p != ']')
3348 /* See if it's in the list */
3349 for (len = p - name, sl = specs; sl; sl = sl->next)
3350 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3360 value = do_spec_1 (name, 0, NULL_PTR);
3366 char *x = (char *) alloca (strlen (name) * 2 + 1);
3370 /* Copy all of NAME into BUF, but put __ after
3371 every -D and at the end of each arg, */
3374 if (! strncmp (y, "-D", 2))
3382 else if (*y == ' ' || *y == 0)
3396 value = do_spec_1 (buf, 0, NULL_PTR);
3402 /* Discard the closing paren or bracket. */
3410 int c1 = *p++; /* Select first or second version number. */
3411 char *v = compiler_version;
3413 /* If desired, advance to second version number. */
3416 /* Set P after the first period. */
3417 while (*v != 0 && *v != ' ' && *v != '.')
3422 /* Set Q at the next period or at the end. */
3424 while (*q != 0 && *q != ' ' && *q != '.')
3426 /* Empty string means zero. */
3432 /* Put that part into the command. */
3433 obstack_grow (&obstack, v, q - v);
3439 if (input_from_pipe)
3440 do_spec_1 ("-", 0, NULL_PTR);
3449 /* Backslash: treat next character as ordinary. */
3454 /* Ordinary character: put it into the current argument. */
3455 obstack_1grow (&obstack, c);
3459 return 0; /* End of string */
3462 /* Return 0 if we call do_spec_1 and that returns -1. */
3475 /* A `|' after the open-brace means,
3476 if the test fails, output a single minus sign rather than nothing.
3477 This is used in %{|!pipe:...}. */
3481 /* A `!' after the open-brace negates the condition:
3482 succeed if the specified switch is not present. */
3486 /* A `.' after the open-brace means test against the current suffix. */
3496 while (*p != ':' && *p != '}') p++;
3499 register int count = 1;
3517 int found = (input_suffix != 0
3518 && strlen (input_suffix) == p - filter
3519 && strncmp (input_suffix, filter, p - filter) == 0);
3525 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3530 else if (p[-1] == '*' && p[0] == '}')
3532 /* Substitute all matching switches as separate args. */
3535 for (i = 0; i < n_switches; i++)
3536 if (!strncmp (switches[i].part1, filter, p - filter))
3541 /* Test for presence of the specified switch. */
3545 /* If name specified ends in *, as in {x*:...},
3546 check for %* and handle that case. */
3547 if (p[-1] == '*' && !negate)
3552 /* First see whether we have %*. */
3556 if (*r == '%' && r[1] == '*')
3560 /* If we do, handle that case. */
3563 /* Substitute all matching switches as separate args.
3564 But do this by substituting for %*
3565 in the text that follows the colon. */
3567 unsigned hard_match_len = p - filter - 1;
3568 char *string = save_string (p + 1, q - p - 2);
3570 for (i = 0; i < n_switches; i++)
3571 if (!strncmp (switches[i].part1, filter, hard_match_len))
3573 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3574 /* Pass any arguments this switch has. */
3582 /* If name specified ends in *, as in {x*:...},
3583 check for presence of any switch name starting with x. */
3586 for (i = 0; i < n_switches; i++)
3588 unsigned hard_match_len = p - filter - 1;
3590 if (!strncmp (switches[i].part1, filter, hard_match_len))
3592 switches[i].valid = 1;
3597 /* Otherwise, check for presence of exact name specified. */
3600 for (i = 0; i < n_switches; i++)
3602 if (!strncmp (switches[i].part1, filter, p - filter)
3603 && switches[i].part1[p - filter] == 0)
3605 switches[i].valid = 1;
3612 /* If it is as desired (present for %{s...}, absent for %{-s...})
3613 then substitute either the switch or the specified
3614 conditional text. */
3615 if (present != negate)
3623 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3629 /* Here if a %{|...} conditional fails: output a minus sign,
3630 which means "standard output" or "standard input". */
3631 do_spec_1 ("-", 0, NULL_PTR);
3638 /* Pass a switch to the current accumulating command
3639 in the same form that we received it.
3640 SWITCHNUM identifies the switch; it is an index into
3641 the vector of switches gcc received, which is `switches'.
3642 This cannot fail since it never finishes a command line.
3644 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
3647 give_switch (switchnum, omit_first_word)
3649 int omit_first_word;
3651 if (!omit_first_word)
3653 do_spec_1 ("-", 0, NULL_PTR);
3654 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
3656 do_spec_1 (" ", 0, NULL_PTR);
3657 if (switches[switchnum].args != 0)
3660 for (p = switches[switchnum].args; *p; p++)
3662 do_spec_1 (*p, 1, NULL_PTR);
3663 do_spec_1 (" ", 0, NULL_PTR);
3666 switches[switchnum].valid = 1;
3669 /* Search for a file named NAME trying various prefixes including the
3670 user's -B prefix and some standard ones.
3671 Return the absolute file name found. If nothing is found, return NAME. */
3679 newname = find_a_file (&startfile_prefix, name, R_OK);
3680 return newname ? newname : name;
3683 /* Determine whether a directory exists. If LINKER, return 0 for
3684 certain fixed names not needed by the linker. If not LINKER, it is
3685 only important to return 0 if the host machine has a small ARG_MAX
3689 is_directory (path1, path2, linker)
3694 int len1 = strlen (path1);
3695 int len2 = strlen (path2);
3696 char *path = (char *) alloca (3 + len1 + len2);
3700 #ifndef SMALL_ARG_MAX
3705 /* Construct the path from the two parts. Ensure the string ends with "/.".
3706 The resulting path will be a directory even if the given path is a
3708 bcopy (path1, path, len1);
3709 bcopy (path2, path + len1, len2);
3710 cp = path + len1 + len2;
3716 /* Exclude directories that the linker is known to search. */
3718 && ((cp - path == 6 && strcmp (path, "/lib/.") == 0)
3719 || (cp - path == 10 && strcmp (path, "/usr/lib/.") == 0)))
3722 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
3725 /* On fatal signals, delete all the temporary files. */
3728 fatal_error (signum)
3731 signal (signum, SIG_DFL);
3732 delete_failure_queue ();
3733 delete_temp_files ();
3734 /* Get the same signal again, this time not handled,
3735 so its normal effect occurs. */
3736 kill (getpid (), signum);
3747 int linker_was_run = 0;
3748 char *explicit_link_files;
3752 p = argv[0] + strlen (argv[0]);
3753 while (p != argv[0] && p[-1] != '/') --p;
3756 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
3757 signal (SIGINT, fatal_error);
3759 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
3760 signal (SIGHUP, fatal_error);
3762 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
3763 signal (SIGTERM, fatal_error);
3765 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
3766 signal (SIGPIPE, fatal_error);
3770 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
3772 obstack_init (&obstack);
3774 /* Set up to remember the pathname of gcc and any options
3775 needed for collect. We use argv[0] instead of programname because
3776 we need the complete pathname. */
3777 obstack_init (&collect_obstack);
3778 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
3779 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
3780 putenv (obstack_finish (&collect_obstack));
3782 /* Choose directory for temp files. */
3784 choose_temp_base ();
3786 /* Make a table of what switches there are (switches, n_switches).
3787 Make a table of specified input files (infiles, n_infiles).
3788 Decode switches that are handled locally. */
3790 process_command (argc, argv);
3792 /* Initialize the vector of specs to just the default.
3793 This means one element containing 0s, as a terminator. */
3795 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
3796 bcopy (default_compilers, compilers, sizeof default_compilers);
3797 n_compilers = n_default_compilers;
3799 /* Read specs from a file if there is one. */
3801 machine_suffix = concat (spec_machine, "/", concat (spec_version, "/", ""));
3802 just_machine_suffix = concat (spec_machine, "/", "");
3804 specs_file = find_a_file (&startfile_prefix, "specs", R_OK);
3805 /* Read the specs file unless it is a default one. */
3806 if (specs_file != 0 && strcmp (specs_file, "specs"))
3807 read_specs (specs_file);
3809 /* If not cross-compiling, look for startfiles in the standard places. */
3810 /* The fact that these are done here, after reading the specs file,
3811 means that it cannot be found in these directories.
3812 But that's okay. It should never be there anyway. */
3815 #ifdef MD_EXEC_PREFIX
3816 add_prefix (&exec_prefix, md_exec_prefix, 0, 0, NULL_PTR);
3817 add_prefix (&startfile_prefix, md_exec_prefix, 0, 0, NULL_PTR);
3820 #ifdef MD_STARTFILE_PREFIX
3821 add_prefix (&startfile_prefix, md_startfile_prefix, 0, 0, NULL_PTR);
3824 #ifdef MD_STARTFILE_PREFIX_1
3825 add_prefix (&startfile_prefix, md_startfile_prefix_1, 0, 0, NULL_PTR);
3828 /* If standard_startfile_prefix is relative, base it on
3829 standard_exec_prefix. This lets us move the installed tree
3830 as a unit. If GCC_EXEC_PREFIX is defined, base
3831 standard_startfile_prefix on that as well. */
3832 if (*standard_startfile_prefix == '/')
3833 add_prefix (&startfile_prefix, standard_startfile_prefix, 0, 0,
3837 if (gcc_exec_prefix)
3838 add_prefix (&startfile_prefix,
3839 concat (gcc_exec_prefix,
3840 standard_startfile_prefix,
3843 add_prefix (&startfile_prefix,
3844 concat (standard_exec_prefix,
3846 standard_startfile_prefix),
3850 add_prefix (&startfile_prefix, standard_startfile_prefix_1, 0, 0,
3852 add_prefix (&startfile_prefix, standard_startfile_prefix_2, 0, 0,
3854 #if 0 /* Can cause surprises, and one can use -B./ instead. */
3855 add_prefix (&startfile_prefix, "./", 0, 1, NULL_PTR);
3859 /* Now we have the specs.
3860 Set the `valid' bits for switches that match anything in any spec. */
3862 validate_all_switches ();
3864 /* Warn about any switches that no pass was interested in. */
3866 for (i = 0; i < n_switches; i++)
3867 if (! switches[i].valid)
3868 error ("unrecognized option `-%s'", switches[i].part1);
3870 if (print_libgcc_file_name)
3872 printf ("%s\n", find_file ("libgcc.a"));
3876 /* Obey some of the options. */
3880 fprintf (stderr, "gcc version %s\n", version_string);
3886 fatal ("No input files");
3888 /* Make a place to record the compiler output file names
3889 that correspond to the input files. */
3891 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
3892 bzero (outfiles, n_infiles * sizeof (char *));
3894 /* Record which files were specified explicitly as link input. */
3896 explicit_link_files = xmalloc (n_infiles);
3897 bzero (explicit_link_files, n_infiles);
3899 for (i = 0; i < n_infiles; i++)
3901 register struct compiler *cp = 0;
3902 int this_file_error = 0;
3904 /* Tell do_spec what to substitute for %i. */
3906 input_filename = infiles[i].name;
3907 input_filename_length = strlen (input_filename);
3908 input_file_number = i;
3910 /* Use the same thing in %o, unless cp->spec says otherwise. */
3912 outfiles[i] = input_filename;
3914 /* Figure out which compiler from the file's suffix. */
3916 cp = lookup_compiler (infiles[i].name, input_filename_length,
3917 infiles[i].language);
3921 /* Ok, we found an applicable compiler. Run its spec. */
3922 /* First say how much of input_filename to substitute for %b */
3926 input_basename = input_filename;
3927 for (p = input_filename; *p; p++)
3929 input_basename = p + 1;
3931 /* Find a suffix starting with the last period,
3932 and set basename_length to exclude that suffix. */
3933 basename_length = strlen (input_basename);
3934 p = input_basename + basename_length;
3935 while (p != input_basename && *p != '.') --p;
3936 if (*p == '.' && p != input_basename)
3938 basename_length = p - input_basename;
3939 input_suffix = p + 1;
3945 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
3947 len += strlen (cp->spec[j]);
3949 p = (char *) xmalloc (len + 1);
3952 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
3955 strcpy (p + len, cp->spec[j]);
3956 len += strlen (cp->spec[j]);
3959 value = do_spec (p);
3962 this_file_error = 1;
3965 /* If this file's name does not contain a recognized suffix,
3966 record it as explicit linker input. */
3969 explicit_link_files[i] = 1;
3971 /* Clear the delete-on-failure queue, deleting the files in it
3972 if this compilation failed. */
3974 if (this_file_error)
3976 delete_failure_queue ();
3979 /* If this compilation succeeded, don't delete those files later. */
3980 clear_failure_queue ();
3983 /* Run ld to link all the compiler output files. */
3985 if (error_count == 0)
3987 int tmp = execution_count;
3991 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
3993 putenv_from_prefixes (&exec_prefix, "COMPILER_PATH=");
3994 putenv_from_prefixes (&startfile_prefix, "LIBRARY_PATH=");
3996 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
3998 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
3999 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4002 for (i = 0; i < n_switches; i++)
4006 obstack_grow (&collect_obstack, " ", 1);
4009 obstack_grow (&collect_obstack, "-", 1);
4010 obstack_grow (&collect_obstack, switches[i].part1,
4011 strlen (switches[i].part1));
4013 for (args = switches[i].args; args && *args; args++)
4015 obstack_grow (&collect_obstack, " ", 1);
4016 obstack_grow (&collect_obstack, *args, strlen (*args));
4019 obstack_grow (&collect_obstack, "\0", 1);
4020 putenv (obstack_finish (&collect_obstack));
4022 value = do_spec (link_command_spec);
4025 linker_was_run = (tmp != execution_count);
4028 /* Warn if a -B option was specified but the prefix was never used. */
4029 unused_prefix_warnings (&exec_prefix);
4030 unused_prefix_warnings (&startfile_prefix);
4032 /* If options said don't run linker,
4033 complain about input files to be given to the linker. */
4035 if (! linker_was_run && error_count == 0)
4036 for (i = 0; i < n_infiles; i++)
4037 if (explicit_link_files[i])
4038 error ("%s: linker input file unused since linking not done",
4041 /* Delete some or all of the temporary files we made. */
4044 delete_failure_queue ();
4045 delete_temp_files ();
4047 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4052 /* Find the proper compilation spec for the file name NAME,
4053 whose length is LENGTH. LANGUAGE is the specified language,
4054 or 0 if none specified. */
4056 static struct compiler *
4057 lookup_compiler (name, length, language)
4062 struct compiler *cp;
4064 /* Look for the language, if one is spec'd. */
4067 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4071 if (cp->suffix[0] == '@'
4072 && !strcmp (cp->suffix + 1, language))
4076 error ("language %s not recognized", language);
4079 /* Look for a suffix. */
4080 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4082 if (/* The suffix `-' matches only the file name `-'. */
4083 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4085 (strlen (cp->suffix) < length
4086 /* See if the suffix matches the end of NAME. */
4087 && !strcmp (cp->suffix,
4088 name + length - strlen (cp->suffix))))
4090 if (cp->spec[0][0] == '@')
4092 struct compiler *new;
4093 /* An alias entry maps a suffix to a language.
4094 Search for the language; pass 0 for NAME and LENGTH
4095 to avoid infinite recursion if language not found.
4096 Construct the new compiler spec. */
4097 language = cp->spec[0] + 1;
4098 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4099 new->suffix = cp->suffix;
4100 bcopy (lookup_compiler (NULL_PTR, 0, language)->spec,
4101 new->spec, sizeof new->spec);
4104 /* A non-alias entry: return it. */
4116 register char *value = (char *) malloc (size);
4118 fatal ("virtual memory exhausted");
4123 xrealloc (ptr, size)
4127 register char *value = (char *) realloc (ptr, size);
4129 fatal ("virtual memory exhausted");
4133 /* Return a newly-allocated string whose contents concatenate those of s1, s2, s3. */
4139 int len1 = strlen (s1), len2 = strlen (s2), len3 = strlen (s3);
4140 char *result = xmalloc (len1 + len2 + len3 + 1);
4142 strcpy (result, s1);
4143 strcpy (result + len1, s2);
4144 strcpy (result + len1 + len2, s3);
4145 *(result + len1 + len2 + len3) = 0;
4151 save_string (s, len)
4155 register char *result = xmalloc (len + 1);
4157 bcopy (s, result, len);
4163 pfatal_with_name (name)
4168 if (errno < sys_nerr)
4169 s = concat ("%s: ", sys_errlist[errno], "");
4171 s = "cannot open %s";
4176 perror_with_name (name)
4181 if (errno < sys_nerr)
4182 s = concat ("%s: ", sys_errlist[errno], "");
4184 s = "cannot open %s";
4194 if (errno < sys_nerr)
4195 s = concat ("installation problem, cannot exec %s: ",
4196 sys_errlist[errno], "");
4198 s = "installation problem, cannot exec %s";
4202 /* More 'friendly' abort that prints the line and file.
4203 config.h can #define abort fancy_abort if you like that sort of thing. */
4208 fatal ("Internal gcc abort.");
4213 /* Output an error message and exit */
4216 fatal VPROTO((char *format, ...))
4223 VA_START (ap, format);
4226 format = va_arg (ap, char*);
4229 fprintf (stderr, "%s: ", programname);
4230 vfprintf (stderr, format, ap);
4232 fprintf (stderr, "\n");
4233 delete_temp_files ();
4238 error VPROTO((char *format, ...))
4245 VA_START (ap, format);
4248 format = va_arg (ap, char*);
4251 fprintf (stderr, "%s: ", programname);
4252 vfprintf (stderr, format, ap);
4255 fprintf (stderr, "\n");
4258 #else /* not HAVE_VPRINTF */
4261 fatal (msg, arg1, arg2)
4262 char *msg, *arg1, *arg2;
4264 error (msg, arg1, arg2);
4265 delete_temp_files ();
4270 error (msg, arg1, arg2)
4271 char *msg, *arg1, *arg2;
4273 fprintf (stderr, "%s: ", programname);
4274 fprintf (stderr, msg, arg1, arg2);
4275 fprintf (stderr, "\n");
4278 #endif /* not HAVE_VPRINTF */
4282 validate_all_switches ()
4284 struct compiler *comp;
4287 struct spec_list *spec;
4289 for (comp = compilers; comp->spec[0]; comp++)
4292 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4296 if (c == '%' && *p == '{')
4297 /* We have a switch spec. */
4298 validate_switches (p + 1);
4302 /* look through the linked list of extra specs read from the specs file */
4303 for (spec = specs; spec ; spec = spec->next)
4307 if (c == '%' && *p == '{')
4308 /* We have a switch spec. */
4309 validate_switches (p + 1);
4312 p = link_command_spec;
4314 if (c == '%' && *p == '{')
4315 /* We have a switch spec. */
4316 validate_switches (p + 1);
4318 /* Now notice switches mentioned in the machine-specific specs. */
4322 if (c == '%' && *p == '{')
4323 /* We have a switch spec. */
4324 validate_switches (p + 1);
4328 if (c == '%' && *p == '{')
4329 /* We have a switch spec. */
4330 validate_switches (p + 1);
4334 if (c == '%' && *p == '{')
4335 /* We have a switch spec. */
4336 validate_switches (p + 1);
4338 p = signed_char_spec;
4340 if (c == '%' && *p == '{')
4341 /* We have a switch spec. */
4342 validate_switches (p + 1);
4346 if (c == '%' && *p == '{')
4347 /* We have a switch spec. */
4348 validate_switches (p + 1);
4352 if (c == '%' && *p == '{')
4353 /* We have a switch spec. */
4354 validate_switches (p + 1);
4358 if (c == '%' && *p == '{')
4359 /* We have a switch spec. */
4360 validate_switches (p + 1);
4364 if (c == '%' && *p == '{')
4365 /* We have a switch spec. */
4366 validate_switches (p + 1);
4370 if (c == '%' && *p == '{')
4371 /* We have a switch spec. */
4372 validate_switches (p + 1);
4375 /* Look at the switch-name that comes after START
4376 and mark as valid all supplied switches that match it. */
4379 validate_switches (start)
4382 register char *p = start;
4397 while (*p != ':' && *p != '}') p++;
4401 else if (p[-1] == '*')
4403 /* Mark all matching switches as valid. */
4405 for (i = 0; i < n_switches; i++)
4406 if (!strncmp (switches[i].part1, filter, p - filter))
4407 switches[i].valid = 1;
4411 /* Mark an exact matching switch as valid. */
4412 for (i = 0; i < n_switches; i++)
4414 if (!strncmp (switches[i].part1, filter, p - filter)
4415 && switches[i].part1[p - filter] == 0)
4416 switches[i].valid = 1;