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 this file
146 as found through our usual search mechanism. */
148 static char *print_file_name = NULL;
150 /* As print_file_name, but search for executable file. */
152 static char *print_prog_name = NULL;
154 /* Flag indicating whether we should print the command and arguments */
156 static int verbose_flag;
158 /* Nonzero means write "temp" files in source directory
159 and use the source file's name in them, and don't delete them. */
161 static int save_temps_flag;
163 /* The compiler version. */
165 static char *compiler_version;
167 /* The target version specified with -V */
169 static char *spec_version = DEFAULT_TARGET_VERSION;
171 /* The target machine specified with -b. */
173 static char *spec_machine = DEFAULT_TARGET_MACHINE;
175 /* Nonzero if cross-compiling.
176 When -b is used, the value comes from the `specs' file. */
179 static int cross_compile = 1;
181 static int cross_compile = 0;
184 /* The number of errors that have occurred; the link phase will not be
185 run if this is non-zero. */
186 static int error_count = 0;
188 /* This is the obstack which we use to allocate many strings. */
190 static struct obstack obstack;
192 /* This is the obstack to build an environment variable to pass to
193 collect2 that describes all of the relevant switches of what to
194 pass the compiler in building the list of pointers to constructors
197 static struct obstack collect_obstack;
199 extern char *version_string;
201 /* Forward declaration for prototypes. */
204 static void set_spec PROTO((char *, char *));
205 static struct compiler *lookup_compiler PROTO((char *, int, char *));
206 static char *find_a_file PROTO((struct path_prefix *, char *, int));
207 static void add_prefix PROTO((struct path_prefix *, char *, int, int, int *));
208 static char *skip_whitespace PROTO((char *));
209 static void record_temp_file PROTO((char *, int, int));
210 static int check_live_switch PROTO((int, int));
211 static char *handle_braces PROTO((char *));
212 static char *save_string PROTO((char *, int));
213 static char *concat PROTO((char *, char *, char *));
214 static int do_spec PROTO((char *));
215 static int do_spec_1 PROTO((char *, int, char *));
216 static char *find_file PROTO((char *));
217 static int is_directory PROTO((char *, char *, int));
218 static void validate_switches PROTO((char *));
219 static void validate_all_switches PROTO((void));
220 static void give_switch PROTO((int, int));
221 static void pfatal_with_name PROTO((char *));
222 static void perror_with_name PROTO((char *));
223 static void perror_exec PROTO((char *));
225 static void fatal PVPROTO((char *, ...));
226 static void error PVPROTO((char *, ...));
228 /* We must not provide any prototype here, even if ANSI C. */
229 static void fatal PROTO(());
230 static void error PROTO(());
237 /* Specs are strings containing lines, each of which (if not blank)
238 is made up of a program name, and arguments separated by spaces.
239 The program name must be exact and start from root, since no path
240 is searched and it is unreliable to depend on the current working directory.
241 Redirection of input or output is not supported; the subprograms must
242 accept filenames saying what files to read and write.
244 In addition, the specs can contain %-sequences to substitute variable text
245 or for conditional text. Here is a table of all defined %-sequences.
246 Note that spaces are not generated automatically around the results of
247 expanding these sequences; therefore, you can concatenate them together
248 or with constant text in a single argument.
250 %% substitute one % into the program name or argument.
251 %i substitute the name of the input file being processed.
252 %b substitute the basename of the input file being processed.
253 This is the substring up to (and not including) the last period
254 and not including the directory.
255 %g substitute the temporary-file-name-base. This is a string chosen
256 once per compilation. Different temporary file names are made by
257 concatenation of constant strings on the end, as in `%g.s'.
258 %g also has the same effect of %d.
259 %u like %g, but make the temporary file name unique.
260 %U returns the last file name generated with %u.
261 %d marks the argument containing or following the %d as a
262 temporary file name, so that that file will be deleted if CC exits
263 successfully. Unlike %g, this contributes no text to the argument.
264 %w marks the argument containing or following the %w as the
265 "output file" of this compilation. This puts the argument
266 into the sequence of arguments that %o will substitute later.
268 like %{...} but mark last argument supplied within
269 as a file to be deleted on failure.
270 %o substitutes the names of all the output files, with spaces
271 automatically placed around them. You should write spaces
272 around the %o as well or the results are undefined.
273 %o is for use in the specs for running the linker.
274 Input files whose names have no recognized suffix are not compiled
275 at all, but they are included among the output files, so they will
277 %p substitutes the standard macro predefinitions for the
278 current target machine. Use this when running cpp.
279 %P like %p, but puts `__' before and after the name of each macro.
280 (Except macros that already have __.)
282 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
283 %s current argument is the name of a library or startup file of some sort.
284 Search for that file in a standard list of directories
285 and substitute the full name found.
286 %eSTR Print STR as an error message. STR is terminated by a newline.
287 Use this when inconsistent options are detected.
288 %x{OPTION} Accumulate an option for %X.
289 %X Output the accumulated linker options specified by compilations.
290 %Y Output the accumulated assembler options specified by compilations.
291 %v1 Substitute the major version number of GCC.
292 (For version 2.5.n, this is 2.)
293 %v2 Substitute the minor version number of GCC.
294 (For version 2.5.n, this is 5.)
295 %a process ASM_SPEC as a spec.
296 This allows config.h to specify part of the spec for running as.
297 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
298 used here. This can be used to run a post-processor after the
299 assembler has done it's job.
300 %D Dump out a -L option for each directory in startfile_prefix.
301 %l process LINK_SPEC as a spec.
302 %L process LIB_SPEC as a spec.
303 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
304 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
305 %c process SIGNED_CHAR_SPEC as a spec.
306 %C process CPP_SPEC as a spec. A capital C is actually used here.
307 %1 process CC1_SPEC as a spec.
308 %2 process CC1PLUS_SPEC as a spec.
309 %| output "-" if the input for the current command is coming from a pipe.
310 %* substitute the variable part of a matched option. (See below.)
311 Note that each comma in the substituted string is replaced by
313 %{S} substitutes the -S switch, if that switch was given to CC.
314 If that switch was not specified, this substitutes nothing.
315 Here S is a metasyntactic variable.
316 %{S*} substitutes all the switches specified to CC whose names start
317 with -S. This is used for -o, -D, -I, etc; switches that take
318 arguments. CC considers `-o foo' as being one switch whose
319 name starts with `o'. %{o*} would substitute this text,
320 including the space; thus, two arguments would be generated.
321 %{S*:X} substitutes X if one or more switches whose names start with -S are
322 specified to CC. Note that the tail part of the -S option
323 (i.e. the part matched by the `*') will be substituted for each
324 occurrence of %* within X.
325 %{S:X} substitutes X, but only if the -S switch was given to CC.
326 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
327 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
328 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
329 %{.S:X} substitutes X, but only if processing a file with suffix S.
330 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
331 %(Spec) processes a specification defined in a specs file as *Spec:
332 %[Spec] as above, but put __ around -D arguments
334 The conditional text X in a %{S:X} or %{!S:X} construct may contain
335 other nested % constructs or spaces, or even newlines. They are
336 processed as usual, as described above.
338 The -O, -f, -m, and -W switches are handled specifically in these
339 constructs. If another value of -O or the negated form of a -f, -m, or
340 -W switch is found later in the command line, the earlier switch
341 value is ignored, except with {S*} where S is just one letter; this
342 passes all matching options.
344 The character | is used to indicate that a command should be piped to
345 the following command, but only if -pipe is specified.
347 Note that it is built into CC which switches take arguments and which
348 do not. You might think it would be useful to generalize this to
349 allow each compiler's spec to say which switches take arguments. But
350 this cannot be done in a consistent fashion. CC cannot even decide
351 which input files have been specified without knowing which switches
352 take arguments, and it must know which input files to compile in order
353 to tell which compilers to run.
355 CC also knows implicitly that arguments starting in `-l' are to be
356 treated as compiler output files, and passed to the linker in their
357 proper position among the other output files. */
359 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
361 /* config.h can define ASM_SPEC to provide extra args to the assembler
362 or extra switch-translations. */
367 /* config.h can define ASM_FINAL_SPEC to run a post processor after
368 the assembler has run. */
369 #ifndef ASM_FINAL_SPEC
370 #define ASM_FINAL_SPEC ""
373 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
374 or extra switch-translations. */
379 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
380 or extra switch-translations. */
385 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
386 or extra switch-translations. */
388 #define CC1PLUS_SPEC ""
391 /* config.h can define LINK_SPEC to provide extra args to the linker
392 or extra switch-translations. */
397 /* config.h can define LIB_SPEC to override the default libraries. */
399 #define LIB_SPEC "%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
402 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
403 #ifndef STARTFILE_SPEC
404 #define STARTFILE_SPEC \
405 "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}"
408 /* config.h can define SWITCHES_NEED_SPACES to control passing -o and -L.
409 Make the string nonempty to require spaces there. */
410 #ifndef SWITCHES_NEED_SPACES
411 #define SWITCHES_NEED_SPACES ""
414 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
416 #define ENDFILE_SPEC ""
419 /* This spec is used for telling cpp whether char is signed or not. */
420 #ifndef SIGNED_CHAR_SPEC
421 /* Use #if rather than ?:
422 because MIPS C compiler rejects like ?: in initializers. */
423 #if DEFAULT_SIGNED_CHAR
424 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
426 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
430 static char *cpp_spec = CPP_SPEC;
431 static char *cpp_predefines = CPP_PREDEFINES;
432 static char *cc1_spec = CC1_SPEC;
433 static char *cc1plus_spec = CC1PLUS_SPEC;
434 static char *signed_char_spec = SIGNED_CHAR_SPEC;
435 static char *asm_spec = ASM_SPEC;
436 static char *asm_final_spec = ASM_FINAL_SPEC;
437 static char *link_spec = LINK_SPEC;
438 static char *lib_spec = LIB_SPEC;
439 static char *endfile_spec = ENDFILE_SPEC;
440 static char *startfile_spec = STARTFILE_SPEC;
441 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
443 /* This defines which switch letters take arguments. */
445 #ifndef SWITCH_TAKES_ARG
446 #define SWITCH_TAKES_ARG(CHAR) \
447 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
448 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
449 || (CHAR) == 'I' || (CHAR) == 'm' \
450 || (CHAR) == 'L' || (CHAR) == 'A')
453 /* This defines which multi-letter switches take arguments. */
455 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
456 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
457 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
458 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
459 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
460 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore"))
462 #ifndef WORD_SWITCH_TAKES_ARG
463 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
466 /* Record the mapping from file suffixes for compilation specs. */
470 char *suffix; /* Use this compiler for input files
471 whose names end in this suffix. */
473 char *spec[4]; /* To use this compiler, concatenate these
474 specs and pass to do_spec. */
477 /* Pointer to a vector of `struct compiler' that gives the spec for
478 compiling a file, based on its suffix.
479 A file that does not end in any of these suffixes will be passed
480 unchanged to the loader and nothing else will be done to it.
482 An entry containing two 0s is used to terminate the vector.
484 If multiple entries match a file, the last matching one is used. */
486 static struct compiler *compilers;
488 /* Number of entries in `compilers', not counting the null terminator. */
490 static int n_compilers;
492 /* The default list of file name suffixes and their compilation specs. */
494 static struct compiler default_compilers[] =
498 "cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
499 %{C:%{!E:%eGNU C does not support -C without using -E}}\
500 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d}\
501 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
502 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
503 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
504 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
505 %{traditional-cpp:-traditional}\
506 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
507 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
508 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
509 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a}\
510 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
511 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
513 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
514 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
515 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
516 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
517 %{!pipe:%g.s} %A\n }}}}"},
519 "%{E:cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
520 %{C:%{!E:%eGNU C does not support -C without using -E}}\
521 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d}\
522 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
523 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
524 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
525 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
526 %{traditional-cpp:-traditional}\
527 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
529 %{!E:%e-E required when input is from standard input}"},
530 {".m", "@objective-c"},
532 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
533 %{C:%{!E:%eGNU C does not support -C without using -E}}\
534 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d}\
535 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
536 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
537 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
538 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
539 %{traditional-cpp:-traditional}\
540 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
541 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
542 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
543 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a}\
544 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
545 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
546 -lang-objc %{gen-decls} \
548 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
549 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
550 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
551 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
552 %{!pipe:%g.s} %A\n }}}}"},
555 "%{!E:%eCompilation of header file requested} \
556 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
557 %{C:%{!E:%eGNU C does not support -C without using -E}}\
558 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} \
559 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
560 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
561 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
562 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
563 %{traditional-cpp:-traditional}\
564 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
571 "cpp -lang-c++ %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
572 %{C:%{!E:%eGNU C++ does not support -C without using -E}}\
573 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} \
574 -undef -D__GNUC__=%v1 -D__GNUG__=%v1 -D__cplusplus -D__GNUC_MINOR__=%v2\
575 %{ansi:-trigraphs -$ -D__STRICT_ANSI__} %{!undef:%{!ansi:%p} %P}\
576 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
577 %{traditional-cpp:-traditional} %{trigraphs}\
578 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
579 %i %{!M:%{!MM:%{!E:%{!pipe:%g.ii}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
580 "%{!M:%{!MM:%{!E:cc1plus %{!pipe:%g.ii} %1 %2\
581 %{!Q:-quiet} -dumpbase %b.cc %{d*} %{m*} %{a}\
582 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
583 %{traditional} %{v:-version} %{pg:-p} %{p}\
584 %{f*} %{+e*} %{aux-info*}\
585 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
586 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}}|\n\
587 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
588 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
589 %{!pipe:%g.s} %A\n }}}}"},
590 {".i", "@cpp-output"},
592 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
593 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
594 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
596 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
597 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
598 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
599 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
600 %{!pipe:%g.s} %A\n }}}}"},
601 {".ii", "@c++-cpp-output"},
603 "%{!M:%{!MM:%{!E:cc1plus %i %1 %2 %{!Q:-quiet} %{d*} %{m*} %{a}\
604 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
605 %{traditional} %{v:-version} %{pg:-p} %{p}\
606 %{f*} %{+e*} %{aux-info*}\
607 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
608 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
609 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
610 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
611 %{!pipe:%g.s} %A\n }}}}"},
612 {".s", "@assembler"},
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}\
617 {".S", "@assembler-with-cpp"},
618 {"@assembler-with-cpp",
619 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
620 %{C:%{!E:%eGNU C does not support -C without using -E}}\
621 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{trigraphs} \
622 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
623 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
624 %{traditional-cpp:-traditional}\
625 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
626 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
627 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
628 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
629 %{!pipe:%g.s} %A\n }}}}"},
634 "%{!M:%{!MM:%{!E:gnat1 %{k8:-gnatk8} %{w:-gnatws} %{!Q:-quiet}\
635 -dumpbase %b.ada %{g*} %{O*} %{p} %{pg:-p} %{f*}\
637 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
638 %i %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
639 %{!S:%{!gnatc:%{!gnats:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
640 %{c:%W{o*}%{!o*:-o %w%b.o}}\
641 %{!c:-o %d%w%u.o} %{!pipe:%g.s} %A\n}}}}}} "},
642 /* Mark end of table */
646 /* Number of elements in default_compilers, not counting the terminator. */
648 static int n_default_compilers
649 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
651 /* Here is the spec for running the linker, after compiling all files. */
653 /* -u* was put back because both BSD and SysV seem to support it. */
654 /* %{static:} simply prevents an error message if the target machine
655 doesn't handle -static. */
656 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
657 scripts which exist in user specified directories, or in standard
659 #ifdef LINK_LIBGCC_SPECIAL_1
660 /* Have gcc do the search for libgcc.a, but generate -L options as usual. */
661 static char *link_command_spec = "\
663 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
664 %{r} %{s} %{t} %{u*} %{x} %{z}\
665 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
666 %{L*} %D %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
668 #ifdef LINK_LIBGCC_SPECIAL
669 /* Have gcc do the search for libgcc.a, and don't generate -L options. */
670 static char *link_command_spec = "\
672 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
673 %{r} %{s} %{t} %{u*} %{x} %{z}\
674 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
675 %{L*} %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
677 /* Use -L and have the linker do the search for -lgcc. */
678 static char *link_command_spec = "\
680 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
681 %{r} %{s} %{t} %{u*} %{x} %{z}\
682 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
683 %{L*} %D %{T*} %o %{!nostdlib:-lgcc %L -lgcc %{!A:%E}}\n }}}}}}";
687 /* A vector of options to give to the linker.
688 These options are accumulated by -Xlinker and -Wl,
689 and substituted into the linker command with %X. */
690 static int n_linker_options;
691 static char **linker_options;
693 /* A vector of options to give to the assembler.
694 These options are accumulated by -Wa,
695 and substituted into the assembler command with %X. */
696 static int n_assembler_options;
697 static char **assembler_options;
699 /* Define how to map long options into short ones. */
701 /* This structure describes one mapping. */
704 /* The long option's name. */
706 /* The equivalent short option. */
708 /* Argument info. A string of flag chars; NULL equals no options.
709 a => argument required.
710 o => argument optional.
711 j => join argument to equivalent, making one word.
712 * => allow other text after NAME as an argument. */
716 /* This is the table of mappings. Mappings are tried sequentially
717 for each option encountered; the first one that matches, wins. */
719 struct option_map option_map[] =
721 {"--profile-blocks", "-a", 0},
722 {"--target", "-b", "a"},
723 {"--compile", "-c", 0},
724 {"--dump", "-d", "a"},
725 {"--entry", "-e", 0},
726 {"--debug", "-g", "oj"},
727 {"--include", "-include", "a"},
728 {"--imacros", "-imacros", "a"},
729 {"--include-prefix", "-iprefix", "a"},
730 {"--include-directory-after", "-idirafter", "a"},
731 {"--include-with-prefix", "-iwithprefix", "a"},
732 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
733 {"--include-with-prefix-after", "-iwithprefix", "a"},
734 {"--machine-", "-m", "*j"},
735 {"--machine", "-m", "aj"},
736 {"--no-standard-includes", "-nostdinc", 0},
737 {"--no-standard-libraries", "-nostdlib", 0},
738 {"--no-precompiled-includes", "-noprecomp", 0},
739 {"--output", "-o", "a"},
740 {"--profile", "-p", 0},
741 {"--quiet", "-q", 0},
742 {"--silent", "-q", 0},
743 {"--force-link", "-u", "a"},
744 {"--verbose", "-v", 0},
745 {"--version", "-dumpversion", 0},
746 {"--no-warnings", "-w", 0},
747 {"--language", "-x", "a"},
749 {"--assert", "-A", "a"},
750 {"--prefix", "-B", "a"},
751 {"--comments", "-C", 0},
752 {"--define-macro", "-D", "a"},
753 {"--preprocess", "-E", 0},
754 {"--trace-includes", "-H", 0},
755 {"--include-directory", "-I", "a"},
756 {"--include-barrier", "-I-", 0},
757 {"--library-directory", "-L", "a"},
758 {"--dependencies", "-M", 0},
759 {"--user-dependencies", "-MM", 0},
760 {"--write-dependencies", "-MD", 0},
761 {"--write-user-dependencies", "-MMD", 0},
762 {"--optimize", "-O", "oj"},
763 {"--no-line-commands", "-P", 0},
764 {"--assemble", "-S", 0},
765 {"--undefine-macro", "-U", "a"},
766 {"--use-version", "-V", "a"},
767 {"--for-assembler", "-Wa", "a"},
768 {"--extra-warnings", "-W", 0},
769 {"--all-warnings", "-Wall", 0},
770 {"--warn-", "-W", "*j"},
771 {"--for-linker", "-Xlinker", "a"},
773 {"--ansi", "-ansi", 0},
774 {"--traditional", "-traditional", 0},
775 {"--traditional-cpp", "-traditional-cpp", 0},
776 {"--trigraphs", "-trigraphs", 0},
777 {"--pipe", "-pipe", 0},
778 {"--dumpbase", "-dumpbase", "a"},
779 {"--pedantic", "-pedantic", 0},
780 {"--pedantic-errors", "-pedantic-errors", 0},
781 {"--save-temps", "-save-temps", 0},
782 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
783 {"--print-file-name", "-print-file-name=", "aj"},
784 {"--print-prog-name", "-print-prog-name=", "aj"},
785 {"--static", "-static", 0},
786 {"--shared", "-shared", 0},
787 {"--symbolic", "-symbolic", 0},
791 /* Translate the options described by *ARGCP and *ARGVP.
792 Make a new vector and store it back in *ARGVP,
793 and store its length in *ARGVC. */
796 translate_options (argcp, argvp)
802 char **argv = *argvp;
803 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
807 newv[newindex++] = argv[i++];
811 /* Translate -- options. */
812 if (argv[i][0] == '-' && argv[i][1] == '-')
814 /* Find a mapping that applies to this option. */
815 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
817 int optlen = strlen (option_map[j].name);
818 int complen = strlen (argv[i]);
819 char *arginfo = option_map[j].arg_info;
823 if (complen > optlen)
825 if (!strncmp (argv[i], option_map[j].name, complen))
827 int extra = strlen (argv[i]) > optlen;
832 /* If the option has an argument, accept that. */
833 if (argv[i][optlen] == '=')
834 arg = argv[i] + optlen + 1;
835 /* If this mapping allows extra text at end of name,
836 accept that as "argument". */
837 else if (index (arginfo, '*') != 0)
838 arg = argv[i] + optlen;
839 /* Otherwise, extra text at end means mismatch.
840 Try other mappings. */
844 else if (index (arginfo, '*') != 0)
845 error ("Incomplete `%s' option", option_map[j].name);
847 /* Handle arguments. */
848 if (index (arginfo, 'o') != 0)
853 error ("Missing argument to `%s' option",
858 else if (index (arginfo, '*') != 0)
860 else if (index (arginfo, 'a') == 0)
863 error ("Extraneous argument to `%s' option",
868 /* Store the translation as one argv elt or as two. */
869 if (arg != 0 && index (arginfo, 'j') != 0)
870 newv[newindex++] = concat (option_map[j].equivalent,
874 newv[newindex++] = option_map[j].equivalent;
875 newv[newindex++] = arg;
878 newv[newindex++] = option_map[j].equivalent;
885 /* Handle old-fashioned options--just copy them through,
886 with their arguments. */
887 else if (argv[i][0] == '-')
889 char *p = argv[i] + 1;
893 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
894 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
895 else if (WORD_SWITCH_TAKES_ARG (p))
896 nskip += WORD_SWITCH_TAKES_ARG (p);
897 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
900 else if (! strcmp (p, "Xlinker"))
905 newv[newindex++] = argv[i++];
910 /* Ordinary operands, or +e options. */
911 newv[newindex++] = argv[i++];
920 /* Read compilation specs from a file named FILENAME,
921 replacing the default ones.
923 A suffix which starts with `*' is a definition for
924 one of the machine-specific sub-specs. The "suffix" should be
925 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
926 The corresponding spec is stored in asm_spec, etc.,
927 rather than in the `compilers' vector.
929 Anything invalid in the file is a fatal error. */
932 read_specs (filename)
941 fprintf (stderr, "Reading specs from %s\n", filename);
943 /* Open and stat the file. */
944 desc = open (filename, 0, 0);
946 pfatal_with_name (filename);
947 if (stat (filename, &statbuf) < 0)
948 pfatal_with_name (filename);
950 /* Read contents of file into BUFFER. */
951 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
952 read (desc, buffer, (unsigned) statbuf.st_size);
953 buffer[statbuf.st_size] = 0;
956 /* Scan BUFFER for specs, putting them in the vector. */
962 char *in, *out, *p1, *p2;
964 /* Advance P in BUFFER to the next nonblank nocomment line. */
965 p = skip_whitespace (p);
969 /* Find the colon that should end the suffix. */
971 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
972 /* The colon shouldn't be missing. */
974 fatal ("specs file malformed after %d characters", p1 - buffer);
975 /* Skip back over trailing whitespace. */
977 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
978 /* Copy the suffix to a string. */
979 suffix = save_string (p, p2 - p);
980 /* Find the next line. */
981 p = skip_whitespace (p1 + 1);
983 fatal ("specs file malformed after %d characters", p - buffer);
985 /* Find next blank line. */
986 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
987 /* Specs end at the blank line and do not include the newline. */
988 spec = save_string (p, p1 - p);
991 /* Delete backslash-newline sequences from the spec. */
996 if (in[0] == '\\' && in[1] == '\n')
998 else if (in[0] == '#')
1000 while (*in && *in != '\n') in++;
1007 if (suffix[0] == '*')
1009 if (! strcmp (suffix, "*link_command"))
1010 link_command_spec = spec;
1012 set_spec (suffix + 1, spec);
1016 /* Add this pair to the vector. */
1018 = ((struct compiler *)
1019 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1020 compilers[n_compilers].suffix = suffix;
1021 bzero (compilers[n_compilers].spec,
1022 sizeof compilers[n_compilers].spec);
1023 compilers[n_compilers].spec[0] = spec;
1025 bzero (&compilers[n_compilers], sizeof compilers[n_compilers]);
1029 link_command_spec = spec;
1032 if (link_command_spec == 0)
1033 fatal ("spec file has no spec for linking");
1042 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1043 be considered whitespace. */
1044 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1046 else if (*p == '\n' || *p == ' ' || *p == '\t')
1050 while (*p != '\n') p++;
1060 /* Structure to keep track of the specs that have been defined so far. These
1061 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1065 char *name; /* Name of the spec. */
1066 char *spec; /* The spec itself. */
1067 struct spec_list *next; /* Next spec in linked list. */
1070 /* List of specs that have been defined so far. */
1072 static struct spec_list *specs = (struct spec_list *) 0;
1074 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1075 removed; If the spec starts with a + then SPEC is added to the end of the
1079 set_spec (name, spec)
1083 struct spec_list *sl;
1086 /* See if the spec already exists */
1087 for (sl = specs; sl; sl = sl->next)
1088 if (strcmp (sl->name, name) == 0)
1093 /* Not found - make it */
1094 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1095 sl->name = save_string (name, strlen (name));
1096 sl->spec = save_string ("", 0);
1101 old_spec = sl->spec;
1102 if (name && spec[0] == '+' && isspace (spec[1]))
1103 sl->spec = concat (old_spec, spec + 1, "");
1105 sl->spec = save_string (spec, strlen (spec));
1107 if (! strcmp (name, "asm"))
1108 asm_spec = sl->spec;
1109 else if (! strcmp (name, "asm_final"))
1110 asm_final_spec = sl->spec;
1111 else if (! strcmp (name, "cc1"))
1112 cc1_spec = sl->spec;
1113 else if (! strcmp (name, "cc1plus"))
1114 cc1plus_spec = sl->spec;
1115 else if (! strcmp (name, "cpp"))
1116 cpp_spec = sl->spec;
1117 else if (! strcmp (name, "endfile"))
1118 endfile_spec = sl->spec;
1119 else if (! strcmp (name, "lib"))
1120 lib_spec = sl->spec;
1121 else if (! strcmp (name, "link"))
1122 link_spec = sl->spec;
1123 else if (! strcmp (name, "predefines"))
1124 cpp_predefines = sl->spec;
1125 else if (! strcmp (name, "signed_char"))
1126 signed_char_spec = sl->spec;
1127 else if (! strcmp (name, "startfile"))
1128 startfile_spec = sl->spec;
1129 else if (! strcmp (name, "switches_need_spaces"))
1130 switches_need_spaces = sl->spec;
1131 else if (! strcmp (name, "cross_compile"))
1132 cross_compile = atoi (sl->spec);
1133 /* Free the old spec */
1138 /* Accumulate a command (program name and args), and run it. */
1140 /* Vector of pointers to arguments in the current line of specifications. */
1142 static char **argbuf;
1144 /* Number of elements allocated in argbuf. */
1146 static int argbuf_length;
1148 /* Number of elements in argbuf currently in use (containing args). */
1150 static int argbuf_index;
1152 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1153 temp file. Used only if MKTEMP_EACH_FILE. */
1155 static struct temp_name {
1156 char *suffix; /* suffix associated with the code. */
1157 int length; /* strlen (suffix). */
1158 int unique; /* Indicates whether %g or %u/%U was used. */
1159 char *filename; /* associated filename. */
1160 int filename_length; /* strlen (filename). */
1161 struct temp_name *next;
1164 /* Number of commands executed so far. */
1166 static int execution_count;
1168 /* Number of commands that exited with a signal. */
1170 static int signal_count;
1172 /* Name with which this program was invoked. */
1174 static char *programname;
1176 /* Structures to keep track of prefixes to try when looking for files. */
1180 char *prefix; /* String to prepend to the path. */
1181 struct prefix_list *next; /* Next in linked list. */
1182 int require_machine_suffix; /* Don't use without machine_suffix. */
1183 /* 2 means try both machine_suffix and just_machine_suffix. */
1184 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1189 struct prefix_list *plist; /* List of prefixes to try */
1190 int max_len; /* Max length of a prefix in PLIST */
1191 char *name; /* Name of this list (used in config stuff) */
1194 /* List of prefixes to try when looking for executables. */
1196 static struct path_prefix exec_prefix = { 0, 0, "exec" };
1198 /* List of prefixes to try when looking for startup (crt0) files. */
1200 static struct path_prefix startfile_prefix = { 0, 0, "startfile" };
1202 /* List of prefixes to try when looking for include files. */
1204 static struct path_prefix include_prefix = { 0, 0, "include" };
1206 /* Suffix to attach to directories searched for commands.
1207 This looks like `MACHINE/VERSION/'. */
1209 static char *machine_suffix = 0;
1211 /* Suffix to attach to directories searched for commands.
1212 This is just `MACHINE/'. */
1214 static char *just_machine_suffix = 0;
1216 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1218 static char *gcc_exec_prefix;
1220 /* Default prefixes to attach to command names. */
1222 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1223 #undef MD_EXEC_PREFIX
1224 #undef MD_STARTFILE_PREFIX
1225 #undef MD_STARTFILE_PREFIX_1
1228 #ifndef STANDARD_EXEC_PREFIX
1229 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1230 #endif /* !defined STANDARD_EXEC_PREFIX */
1232 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1233 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1234 #ifdef MD_EXEC_PREFIX
1235 static char *md_exec_prefix = MD_EXEC_PREFIX;
1238 #ifndef STANDARD_STARTFILE_PREFIX
1239 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1240 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1242 #ifdef MD_STARTFILE_PREFIX
1243 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1245 #ifdef MD_STARTFILE_PREFIX_1
1246 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1248 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1249 static char *standard_startfile_prefix_1 = "/lib/";
1250 static char *standard_startfile_prefix_2 = "/usr/lib/";
1252 #ifndef TOOLDIR_BASE_PREFIX
1253 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1255 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1256 static char *tooldir_prefix;
1258 /* Clear out the vector of arguments (after a command is executed). */
1266 /* Add one argument to the vector at the end.
1267 This is done when a space is seen or at the end of the line.
1268 If DELETE_ALWAYS is nonzero, the arg is a filename
1269 and the file should be deleted eventually.
1270 If DELETE_FAILURE is nonzero, the arg is a filename
1271 and the file should be deleted if this compilation fails. */
1274 store_arg (arg, delete_always, delete_failure)
1276 int delete_always, delete_failure;
1278 if (argbuf_index + 1 == argbuf_length)
1280 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1283 argbuf[argbuf_index++] = arg;
1284 argbuf[argbuf_index] = 0;
1286 if (delete_always || delete_failure)
1287 record_temp_file (arg, delete_always, delete_failure);
1290 /* Record the names of temporary files we tell compilers to write,
1291 and delete them at the end of the run. */
1293 /* This is the common prefix we use to make temp file names.
1294 It is chosen once for each run of this program.
1295 It is substituted into a spec by %g.
1296 Thus, all temp file names contain this prefix.
1297 In practice, all temp file names start with this prefix.
1299 This prefix comes from the envvar TMPDIR if it is defined;
1300 otherwise, from the P_tmpdir macro if that is defined;
1301 otherwise, in /usr/tmp or /tmp. */
1303 static char *temp_filename;
1305 /* Length of the prefix. */
1307 static int temp_filename_length;
1309 /* Define the list of temporary files to delete. */
1314 struct temp_file *next;
1317 /* Queue of files to delete on success or failure of compilation. */
1318 static struct temp_file *always_delete_queue;
1319 /* Queue of files to delete on failure of compilation. */
1320 static struct temp_file *failure_delete_queue;
1322 /* Record FILENAME as a file to be deleted automatically.
1323 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1324 otherwise delete it in any case.
1325 FAIL_DELETE nonzero means delete it if a compilation step fails;
1326 otherwise delete it in any case. */
1329 record_temp_file (filename, always_delete, fail_delete)
1334 register char *name;
1335 name = xmalloc (strlen (filename) + 1);
1336 strcpy (name, filename);
1340 register struct temp_file *temp;
1341 for (temp = always_delete_queue; temp; temp = temp->next)
1342 if (! strcmp (name, temp->name))
1344 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1345 temp->next = always_delete_queue;
1347 always_delete_queue = temp;
1353 register struct temp_file *temp;
1354 for (temp = failure_delete_queue; temp; temp = temp->next)
1355 if (! strcmp (name, temp->name))
1357 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1358 temp->next = failure_delete_queue;
1360 failure_delete_queue = temp;
1365 /* Delete all the temporary files whose names we previously recorded. */
1368 delete_temp_files ()
1370 register struct temp_file *temp;
1372 for (temp = always_delete_queue; temp; temp = temp->next)
1376 printf ("Delete %s? (y or n) ", temp->name);
1380 while (getchar () != '\n') ;
1381 if (i == 'y' || i == 'Y')
1385 if (stat (temp->name, &st) >= 0)
1387 /* Delete only ordinary files. */
1388 if (S_ISREG (st.st_mode))
1389 if (unlink (temp->name) < 0)
1391 perror_with_name (temp->name);
1396 always_delete_queue = 0;
1399 /* Delete all the files to be deleted on error. */
1402 delete_failure_queue ()
1404 register struct temp_file *temp;
1406 for (temp = failure_delete_queue; temp; temp = temp->next)
1410 printf ("Delete %s? (y or n) ", temp->name);
1414 while (getchar () != '\n') ;
1415 if (i == 'y' || i == 'Y')
1418 if (unlink (temp->name) < 0)
1420 perror_with_name (temp->name);
1426 clear_failure_queue ()
1428 failure_delete_queue = 0;
1431 /* Compute a string to use as the base of all temporary file names.
1432 It is substituted for %g. */
1435 choose_temp_base_try (try, base)
1442 else if (try == (char *)0)
1444 else if (access (try, R_OK | W_OK) != 0)
1457 base = choose_temp_base_try (getenv ("TMPDIR"), base);
1458 base = choose_temp_base_try (getenv ("TMP"), base);
1459 base = choose_temp_base_try (getenv ("TEMP"), base);
1462 base = choose_temp_base_try (P_tmpdir, base);
1465 base = choose_temp_base_try ("/usr/tmp", base);
1466 base = choose_temp_base_try ("/tmp", base);
1468 /* If all else fails, use the current directory! */
1469 if (base == (char *)0)
1472 len = strlen (base);
1473 temp_filename = xmalloc (len + sizeof("/ccXXXXXX") + 1);
1474 strcpy (temp_filename, base);
1475 if (len > 0 && temp_filename[len-1] != '/')
1476 temp_filename[len++] = '/';
1477 strcpy (temp_filename + len, "ccXXXXXX");
1479 mktemp (temp_filename);
1480 temp_filename_length = strlen (temp_filename);
1481 if (temp_filename_length == 0)
1486 /* Routine to add variables to the environment. We do this to pass
1487 the pathname of the gcc driver, and the directories search to the
1488 collect2 program, which is being run as ld. This way, we can be
1489 sure of executing the right compiler when collect2 wants to build
1490 constructors and destructors. Since the environment variables we
1491 use come from an obstack, we don't have to worry about allocating
1500 #ifndef VMS /* nor about VMS */
1502 extern char **environ;
1503 char **old_environ = environ;
1507 int str_len = strlen (str);
1511 while ((ch = *p++) != '\0' && ch != '=')
1517 /* Search for replacing an existing environment variable, and
1518 count the number of total environment variables. */
1519 for (envp = old_environ; *envp; envp++)
1522 if (!strncmp (str, *envp, name_len))
1529 /* Add a new environment variable */
1530 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1532 bcopy (old_environ, environ+1, sizeof (char *) * (num_envs+1));
1537 #endif /* HAVE_PUTENV */
1540 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1543 putenv_from_prefixes (paths, env_var)
1544 struct path_prefix *paths;
1547 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1549 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1550 int first_time = TRUE;
1551 struct prefix_list *pprefix;
1553 obstack_grow (&collect_obstack, env_var, strlen (env_var));
1555 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1557 int len = strlen (pprefix->prefix);
1560 && is_directory (pprefix->prefix, machine_suffix, 0))
1563 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1566 obstack_grow (&collect_obstack, pprefix->prefix, len);
1567 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1570 if (just_machine_suffix
1571 && pprefix->require_machine_suffix == 2
1572 && is_directory (pprefix->prefix, just_machine_suffix, 0))
1575 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1578 obstack_grow (&collect_obstack, pprefix->prefix, len);
1579 obstack_grow (&collect_obstack, just_machine_suffix,
1583 if (!pprefix->require_machine_suffix)
1586 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1589 obstack_grow (&collect_obstack, pprefix->prefix, len);
1592 obstack_1grow (&collect_obstack, '\0');
1593 putenv (obstack_finish (&collect_obstack));
1597 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1598 access to check permissions.
1599 Return 0 if not found, otherwise return its name, allocated with malloc. */
1602 find_a_file (pprefix, name, mode)
1603 struct path_prefix *pprefix;
1608 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1609 struct prefix_list *pl;
1610 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1613 len += strlen (machine_suffix);
1615 temp = xmalloc (len);
1617 /* Determine the filename to execute (special case for absolute paths). */
1621 if (access (name, mode))
1623 strcpy (temp, name);
1628 for (pl = pprefix->plist; pl; pl = pl->next)
1632 strcpy (temp, pl->prefix);
1633 strcat (temp, machine_suffix);
1634 strcat (temp, name);
1635 if (access (temp, mode) == 0)
1637 if (pl->used_flag_ptr != 0)
1638 *pl->used_flag_ptr = 1;
1641 /* Some systems have a suffix for executable files.
1642 So try appending that. */
1643 if (file_suffix[0] != 0)
1645 strcat (temp, file_suffix);
1646 if (access (temp, mode) == 0)
1648 if (pl->used_flag_ptr != 0)
1649 *pl->used_flag_ptr = 1;
1654 /* Certain prefixes are tried with just the machine type,
1655 not the version. This is used for finding as, ld, etc. */
1656 if (just_machine_suffix && pl->require_machine_suffix == 2)
1658 strcpy (temp, pl->prefix);
1659 strcat (temp, just_machine_suffix);
1660 strcat (temp, name);
1661 if (access (temp, mode) == 0)
1663 if (pl->used_flag_ptr != 0)
1664 *pl->used_flag_ptr = 1;
1667 /* Some systems have a suffix for executable files.
1668 So try appending that. */
1669 if (file_suffix[0] != 0)
1671 strcat (temp, file_suffix);
1672 if (access (temp, mode) == 0)
1674 if (pl->used_flag_ptr != 0)
1675 *pl->used_flag_ptr = 1;
1680 /* Certain prefixes can't be used without the machine suffix
1681 when the machine or version is explicitly specified. */
1682 if (!pl->require_machine_suffix)
1684 strcpy (temp, pl->prefix);
1685 strcat (temp, name);
1686 if (access (temp, mode) == 0)
1688 if (pl->used_flag_ptr != 0)
1689 *pl->used_flag_ptr = 1;
1692 /* Some systems have a suffix for executable files.
1693 So try appending that. */
1694 if (file_suffix[0] != 0)
1696 strcat (temp, file_suffix);
1697 if (access (temp, mode) == 0)
1699 if (pl->used_flag_ptr != 0)
1700 *pl->used_flag_ptr = 1;
1711 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1712 at the start of the list, otherwise it goes at the end.
1714 If WARN is nonzero, we will warn if no file is found
1715 through this prefix. WARN should point to an int
1716 which will be set to 1 if this entry is used.
1718 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1719 the complete value of machine_suffix.
1720 2 means try both machine_suffix and just_machine_suffix. */
1723 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1724 struct path_prefix *pprefix;
1727 int require_machine_suffix;
1730 struct prefix_list *pl, **prev;
1733 if (!first && pprefix->plist)
1735 for (pl = pprefix->plist; pl->next; pl = pl->next)
1740 prev = &pprefix->plist;
1742 /* Keep track of the longest prefix */
1744 len = strlen (prefix);
1745 if (len > pprefix->max_len)
1746 pprefix->max_len = len;
1748 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1749 pl->prefix = save_string (prefix, len);
1750 pl->require_machine_suffix = require_machine_suffix;
1751 pl->used_flag_ptr = warn;
1758 pl->next = (struct prefix_list *) 0;
1762 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1765 unused_prefix_warnings (pprefix)
1766 struct path_prefix *pprefix;
1768 struct prefix_list *pl = pprefix->plist;
1772 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1774 error ("file path prefix `%s' never used",
1776 /* Prevent duplicate warnings. */
1777 *pl->used_flag_ptr = 1;
1783 /* Get rid of all prefixes built up so far in *PLISTP. */
1786 free_path_prefix (pprefix)
1787 struct path_prefix *pprefix;
1789 struct prefix_list *pl = pprefix->plist;
1790 struct prefix_list *temp;
1796 free (temp->prefix);
1797 free ((char *) temp);
1799 pprefix->plist = (struct prefix_list *) 0;
1802 /* stdin file number. */
1803 #define STDIN_FILE_NO 0
1805 /* stdout file number. */
1806 #define STDOUT_FILE_NO 1
1808 /* value of `pipe': port index for reading. */
1811 /* value of `pipe': port index for writing. */
1812 #define WRITE_PORT 1
1814 /* Pipe waiting from last process, to be used as input for the next one.
1815 Value is STDIN_FILE_NO if no pipe is waiting
1816 (i.e. the next command is the first of a group). */
1818 static int last_pipe_input;
1820 /* Fork one piped subcommand. FUNC is the system call to use
1821 (either execv or execvp). ARGV is the arg vector to use.
1822 NOT_LAST is nonzero if this is not the last subcommand
1823 (i.e. its output should be piped to the next one.) */
1828 /* Declare these to avoid compilation error. They won't be called. */
1829 int execv(const char *a, const char **b){}
1830 int execvp(const char *a, const char **b){}
1833 pexecute (search_flag, program, argv, not_last)
1841 int i, el = search_flag ? 0 : 4;
1843 scmd = (char *)malloc (strlen (program) + strlen (temp_filename) + 6 + el);
1844 rf = scmd + strlen(program) + 2 + el;
1845 sprintf (scmd, "%s%s @%s.gp", program,
1846 (search_flag ? "" : ".exe"), temp_filename);
1847 argfile = fopen (rf, "w");
1849 pfatal_with_name (rf);
1851 for (i=1; argv[i]; i++)
1854 for (cp = argv[i]; *cp; cp++)
1856 if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp))
1857 fputc ('\\', argfile);
1858 fputc (*cp, argfile);
1860 fputc ('\n', argfile);
1870 perror_exec (program);
1871 return MIN_FATAL_STATUS << 8;
1877 #else /* not __MSDOS__ */
1880 pexecute (search_flag, program, argv, not_last)
1886 int (*func)() = (search_flag ? execv : execvp);
1889 int input_desc = last_pipe_input;
1890 int output_desc = STDOUT_FILE_NO;
1891 int retries, sleep_interval;
1893 /* If this isn't the last process, make a pipe for its output,
1894 and record it as waiting to be the input to the next process. */
1898 if (pipe (pdes) < 0)
1899 pfatal_with_name ("pipe");
1900 output_desc = pdes[WRITE_PORT];
1901 last_pipe_input = pdes[READ_PORT];
1904 last_pipe_input = STDIN_FILE_NO;
1906 /* Fork a subprocess; wait and retry if it fails. */
1908 for (retries = 0; retries < 4; retries++)
1913 sleep (sleep_interval);
1914 sleep_interval *= 2;
1921 pfatal_with_name ("fork");
1923 pfatal_with_name ("vfork");
1929 /* Move the input and output pipes into place, if nec. */
1930 if (input_desc != STDIN_FILE_NO)
1932 close (STDIN_FILE_NO);
1936 if (output_desc != STDOUT_FILE_NO)
1938 close (STDOUT_FILE_NO);
1940 close (output_desc);
1943 /* Close the parent's descs that aren't wanted here. */
1944 if (last_pipe_input != STDIN_FILE_NO)
1945 close (last_pipe_input);
1947 /* Exec the program. */
1948 (*func) (program, argv);
1949 perror_exec (program);
1955 /* In the parent, after forking.
1956 Close the descriptors that we made for this child. */
1957 if (input_desc != STDIN_FILE_NO)
1959 if (output_desc != STDOUT_FILE_NO)
1960 close (output_desc);
1962 /* Return child's process number. */
1967 #endif /* not __MSDOS__ */
1971 pexecute (search_flag, program, argv, not_last)
1977 return (search_flag ? spawnv : spawnvp) (1, program, argv);
1979 #endif /* not OS2 */
1981 /* Execute the command specified by the arguments on the current line of spec.
1982 When using pipes, this includes several piped-together commands
1983 with `|' between them.
1985 Return 0 if successful, -1 if failed. */
1991 int n_commands; /* # of command. */
1995 char *prog; /* program name. */
1996 char **argv; /* vector of args. */
1997 int pid; /* pid of process for this command. */
2000 struct command *commands; /* each command buffer with above info. */
2002 /* Count # of piped commands. */
2003 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2004 if (strcmp (argbuf[i], "|") == 0)
2007 /* Get storage for each command. */
2009 = (struct command *) alloca (n_commands * sizeof (struct command));
2011 /* Split argbuf into its separate piped processes,
2012 and record info about each one.
2013 Also search for the programs that are to be run. */
2015 commands[0].prog = argbuf[0]; /* first command. */
2016 commands[0].argv = &argbuf[0];
2017 string = find_a_file (&exec_prefix, commands[0].prog, X_OK);
2019 commands[0].argv[0] = string;
2021 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2022 if (strcmp (argbuf[i], "|") == 0)
2023 { /* each command. */
2025 fatal ("-pipe not supported under MS-DOS");
2027 argbuf[i] = 0; /* termination of command args. */
2028 commands[n_commands].prog = argbuf[i + 1];
2029 commands[n_commands].argv = &argbuf[i + 1];
2030 string = find_a_file (&exec_prefix, commands[n_commands].prog, X_OK);
2032 commands[n_commands].argv[0] = string;
2036 argbuf[argbuf_index] = 0;
2038 /* If -v, print what we are about to do, and maybe query. */
2042 /* Print each piped command as a separate line. */
2043 for (i = 0; i < n_commands ; i++)
2047 for (j = commands[i].argv; *j; j++)
2048 fprintf (stderr, " %s", *j);
2050 /* Print a pipe symbol after all but the last command. */
2051 if (i + 1 != n_commands)
2052 fprintf (stderr, " |");
2053 fprintf (stderr, "\n");
2057 fprintf (stderr, "\nGo ahead? (y or n) ");
2061 while (getchar () != '\n') ;
2062 if (i != 'y' && i != 'Y')
2067 /* Run each piped subprocess. */
2069 last_pipe_input = STDIN_FILE_NO;
2070 for (i = 0; i < n_commands; i++)
2072 char *string = commands[i].argv[0];
2074 commands[i].pid = pexecute (string != commands[i].prog,
2075 string, commands[i].argv,
2076 i + 1 < n_commands);
2078 if (string != commands[i].prog)
2084 /* Wait for all the subprocesses to finish.
2085 We don't care what order they finish in;
2086 we know that N_COMMANDS waits will get them all. */
2091 for (i = 0; i < n_commands; i++)
2095 char *prog = "unknown";
2098 status = pid = commands[i].pid;
2100 pid = wait (&status);
2108 for (j = 0; j < n_commands; j++)
2109 if (commands[j].pid == pid)
2110 prog = commands[j].prog;
2112 if ((status & 0x7F) != 0)
2114 fatal ("Internal compiler error: program %s got fatal signal %d",
2115 prog, (status & 0x7F));
2118 if (((status & 0xFF00) >> 8) >= MIN_FATAL_STATUS)
2126 /* Find all the switches given to us
2127 and make a vector describing them.
2128 The elements of the vector are strings, one per switch given.
2129 If a switch uses following arguments, then the `part1' field
2130 is the switch itself and the `args' field
2131 is a null-terminated vector containing the following arguments.
2132 The `live_cond' field is 1 if the switch is true in a conditional spec,
2133 -1 if false (overridden by a later switch), and is initialized to zero.
2134 The `valid' field is nonzero if any spec has looked at this switch;
2135 if it remains zero at the end of the run, it must be meaningless. */
2145 static struct switchstr *switches;
2147 static int n_switches;
2155 /* Also a vector of input files specified. */
2157 static struct infile *infiles;
2159 static int n_infiles;
2161 /* And a vector of corresponding output files is made up later. */
2163 static char **outfiles;
2165 /* Create the vector `switches' and its contents.
2166 Store its length in `n_switches'. */
2169 process_command (argc, argv)
2175 char *spec_lang = 0;
2176 int last_language_n_infiles;
2178 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2183 /* Figure compiler version from version string. */
2185 compiler_version = save_string (version_string, strlen (version_string));
2186 for (temp = compiler_version; *temp; ++temp)
2195 /* Set up the default search paths. */
2197 if (gcc_exec_prefix)
2199 add_prefix (&exec_prefix, gcc_exec_prefix, 0, 0, NULL_PTR);
2200 add_prefix (&startfile_prefix, gcc_exec_prefix, 0, 0, NULL_PTR);
2203 /* COMPILER_PATH and LIBRARY_PATH have values
2204 that are lists of directory names with colons. */
2206 temp = getenv ("COMPILER_PATH");
2209 char *startp, *endp;
2210 char *nstore = (char *) alloca (strlen (temp) + 3);
2212 startp = endp = temp;
2215 if (*endp == PATH_SEPARATOR || *endp == 0)
2217 strncpy (nstore, startp, endp-startp);
2220 strcpy (nstore, "./");
2222 else if (endp[-1] != '/')
2224 nstore[endp-startp] = '/';
2225 nstore[endp-startp+1] = 0;
2228 nstore[endp-startp] = 0;
2229 add_prefix (&exec_prefix, nstore, 0, 0, NULL_PTR);
2232 endp = startp = endp + 1;
2239 temp = getenv ("LIBRARY_PATH");
2242 char *startp, *endp;
2243 char *nstore = (char *) alloca (strlen (temp) + 3);
2245 startp = endp = temp;
2248 if (*endp == PATH_SEPARATOR || *endp == 0)
2250 strncpy (nstore, startp, endp-startp);
2253 strcpy (nstore, "./");
2255 else if (endp[-1] != '/')
2257 nstore[endp-startp] = '/';
2258 nstore[endp-startp+1] = 0;
2261 nstore[endp-startp] = 0;
2262 add_prefix (&startfile_prefix, nstore, 0, 0, NULL_PTR);
2265 endp = startp = endp + 1;
2272 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2273 temp = getenv ("LPATH");
2276 char *startp, *endp;
2277 char *nstore = (char *) alloca (strlen (temp) + 3);
2279 startp = endp = temp;
2282 if (*endp == PATH_SEPARATOR || *endp == 0)
2284 strncpy (nstore, startp, endp-startp);
2287 strcpy (nstore, "./");
2289 else if (endp[-1] != '/')
2291 nstore[endp-startp] = '/';
2292 nstore[endp-startp+1] = 0;
2295 nstore[endp-startp] = 0;
2296 add_prefix (&startfile_prefix, nstore, 0, 0, NULL_PTR);
2299 endp = startp = endp + 1;
2306 /* Convert new-style -- options to old-style. */
2307 translate_options (&argc, &argv);
2309 /* Scan argv twice. Here, the first time, just count how many switches
2310 there will be in their vector, and how many input files in theirs.
2311 Here we also parse the switches that cc itself uses (e.g. -v). */
2313 for (i = 1; i < argc; i++)
2315 if (! strcmp (argv[i], "-dumpspecs"))
2317 printf ("*asm:\n%s\n\n", asm_spec);
2318 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2319 printf ("*cpp:\n%s\n\n", cpp_spec);
2320 printf ("*cc1:\n%s\n\n", cc1_spec);
2321 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2322 printf ("*endfile:\n%s\n\n", endfile_spec);
2323 printf ("*link:\n%s\n\n", link_spec);
2324 printf ("*lib:\n%s\n\n", lib_spec);
2325 printf ("*startfile:\n%s\n\n", startfile_spec);
2326 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2327 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2328 printf ("*predefines:\n%s\n\n", cpp_predefines);
2329 printf ("*cross_compile:\n%d\n\n", cross_compile);
2333 else if (! strcmp (argv[i], "-dumpversion"))
2335 printf ("%s\n", version_string);
2338 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2339 print_file_name = "libgcc.a";
2340 else if (! strncmp (argv[i], "-print-file-name=", 17))
2341 print_file_name = argv[i] + 17;
2342 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2343 print_prog_name = argv[i] + 17;
2344 else if (! strcmp (argv[i], "-Xlinker"))
2346 /* Pass the argument of this option to the linker when we link. */
2349 fatal ("argument to `-Xlinker' is missing");
2352 if (!linker_options)
2354 = (char **) xmalloc (n_linker_options * sizeof (char **));
2357 = (char **) xrealloc (linker_options,
2358 n_linker_options * sizeof (char **));
2360 linker_options[n_linker_options - 1] = argv[++i];
2362 else if (! strncmp (argv[i], "-Wl,", 4))
2365 /* Pass the rest of this option to the linker when we link. */
2368 if (!linker_options)
2370 = (char **) xmalloc (n_linker_options * sizeof (char **));
2373 = (char **) xrealloc (linker_options,
2374 n_linker_options * sizeof (char **));
2376 /* Split the argument at commas. */
2378 for (j = 4; argv[i][j]; j++)
2379 if (argv[i][j] == ',')
2381 linker_options[n_linker_options - 1]
2382 = save_string (argv[i] + prev, j - prev);
2385 = (char **) xrealloc (linker_options,
2386 n_linker_options * sizeof (char **));
2389 /* Record the part after the last comma. */
2390 linker_options[n_linker_options - 1] = argv[i] + prev;
2392 else if (! strncmp (argv[i], "-Wa,", 4))
2395 /* Pass the rest of this option to the assembler. */
2397 n_assembler_options++;
2398 if (!assembler_options)
2400 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2403 = (char **) xrealloc (assembler_options,
2404 n_assembler_options * sizeof (char **));
2406 /* Split the argument at commas. */
2408 for (j = 4; argv[i][j]; j++)
2409 if (argv[i][j] == ',')
2411 assembler_options[n_assembler_options - 1]
2412 = save_string (argv[i] + prev, j - prev);
2413 n_assembler_options++;
2415 = (char **) xrealloc (assembler_options,
2416 n_assembler_options * sizeof (char **));
2419 /* Record the part after the last comma. */
2420 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2422 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2423 /* The +e options to the C++ front-end. */
2425 else if (argv[i][0] == '-' && argv[i][1] != 0 && argv[i][1] != 'l')
2427 register char *p = &argv[i][1];
2428 register int c = *p;
2433 if (p[1] == 0 && i + 1 == argc)
2434 fatal ("argument to `-b' is missing");
2436 spec_machine = argv[++i];
2438 spec_machine = p + 1;
2443 int *temp = (int *) xmalloc (sizeof (int));
2445 if (p[1] == 0 && i + 1 == argc)
2446 fatal ("argument to `-B' is missing");
2451 add_prefix (&exec_prefix, value, 1, 0, temp);
2452 add_prefix (&startfile_prefix, value, 1, 0, temp);
2453 add_prefix (&include_prefix, concat (value, "include", ""),
2456 /* As a kludge, if the arg is "[foo/]stageN/", just add
2457 "include" to the include prefix. */
2459 int len = strlen (value);
2460 if ((len == 7 || (len > 7 && value[len - 8] == '/'))
2461 && strncmp (value + len - 7, "stage", 5) == 0
2462 && isdigit (value[len - 2])
2463 && value[len - 1] == '/')
2464 add_prefix (&include_prefix, "include", 1, 0, 0);
2469 case 'v': /* Print our subcommands and print versions. */
2471 /* If they do anything other than exactly `-v', don't set
2472 verbose_flag; rather, continue on to give the error. */
2479 if (p[1] == 0 && i + 1 == argc)
2480 fatal ("argument to `-V' is missing");
2482 spec_version = argv[++i];
2484 spec_version = p + 1;
2485 compiler_version = spec_version;
2489 if (!strcmp (p, "save-temps"))
2491 save_temps_flag = 1;
2498 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2499 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2500 else if (WORD_SWITCH_TAKES_ARG (p))
2501 i += WORD_SWITCH_TAKES_ARG (p);
2508 /* Set up the search paths before we go looking for config files. */
2510 /* These come before the md prefixes so that we will find gcc's subcommands
2511 (such as cpp) rather than those of the host system. */
2512 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2513 as well as trying the machine and the version. */
2514 add_prefix (&exec_prefix, standard_exec_prefix, 0, 2, NULL_PTR);
2515 add_prefix (&exec_prefix, standard_exec_prefix_1, 0, 2, NULL_PTR);
2517 add_prefix (&startfile_prefix, standard_exec_prefix, 0, 1, NULL_PTR);
2518 add_prefix (&startfile_prefix, standard_exec_prefix_1, 0, 1, NULL_PTR);
2520 tooldir_prefix = concat (tooldir_base_prefix, spec_machine, "/");
2522 /* If tooldir is relative, base it on exec_prefix. A relative
2523 tooldir lets us move the installed tree as a unit.
2525 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2526 directories, so that we can search both the user specified directory
2527 and the standard place. */
2529 if (*tooldir_prefix != '/')
2531 if (gcc_exec_prefix)
2533 char *gcc_exec_tooldir_prefix
2534 = concat (concat (gcc_exec_prefix, spec_machine, "/"),
2535 concat (spec_version, "/", tooldir_prefix),
2538 add_prefix (&exec_prefix, concat (gcc_exec_tooldir_prefix, "bin", "/"),
2540 add_prefix (&startfile_prefix, concat (gcc_exec_tooldir_prefix, "lib", "/"),
2544 tooldir_prefix = concat (concat (standard_exec_prefix, spec_machine, "/"),
2545 concat (spec_version, "/", tooldir_prefix),
2549 add_prefix (&exec_prefix, concat (tooldir_prefix, "bin", "/"),
2551 add_prefix (&startfile_prefix, concat (tooldir_prefix, "lib", "/"),
2554 /* More prefixes are enabled in main, after we read the specs file
2555 and determine whether this is cross-compilation or not. */
2558 /* Then create the space for the vectors and scan again. */
2560 switches = ((struct switchstr *)
2561 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2562 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2565 last_language_n_infiles = -1;
2567 /* This, time, copy the text of each switch and store a pointer
2568 to the copy in the vector of switches.
2569 Store all the infiles in their vector. */
2571 for (i = 1; i < argc; i++)
2573 /* Just skip the switches that were handled by the preceding loop. */
2574 if (!strcmp (argv[i], "-Xlinker"))
2576 else if (! strncmp (argv[i], "-Wl,", 4))
2578 else if (! strncmp (argv[i], "-Wa,", 4))
2580 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2582 else if (! strncmp (argv[i], "-print-file-name=", 17))
2584 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2586 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2588 /* Compensate for the +e options to the C++ front-end;
2589 they're there simply for cfront call-compatibility. We do
2590 some magic in default_compilers to pass them down properly.
2591 Note we deliberately start at the `+' here, to avoid passing
2592 -e0 or -e1 down into the linker. */
2593 switches[n_switches].part1 = &argv[i][0];
2594 switches[n_switches].args = 0;
2595 switches[n_switches].live_cond = 0;
2596 switches[n_switches].valid = 0;
2599 else if (argv[i][0] == '-' && argv[i][1] != 0 && argv[i][1] != 'l')
2601 register char *p = &argv[i][1];
2602 register int c = *p;
2604 if (c == 'B' || c == 'b' || c == 'V')
2606 /* Skip a separate arg, if any. */
2613 if (p[1] == 0 && i + 1 == argc)
2614 fatal ("argument to `-x' is missing");
2616 spec_lang = argv[++i];
2619 if (! strcmp (spec_lang, "none"))
2620 /* Suppress the warning if -xnone comes after the last input file,
2621 because alternate command interfaces like g++ might find it
2622 useful to place -xnone after each input file. */
2625 last_language_n_infiles = n_infiles;
2628 switches[n_switches].part1 = p;
2629 /* Deal with option arguments in separate argv elements. */
2630 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2631 || WORD_SWITCH_TAKES_ARG (p))
2634 int n_args = WORD_SWITCH_TAKES_ARG (p);
2638 /* Count only the option arguments in separate argv elements. */
2639 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2641 if (i + n_args >= argc)
2642 fatal ("argument to `-%s' is missing", p);
2643 switches[n_switches].args
2644 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2646 switches[n_switches].args[j++] = argv[++i];
2647 /* Null-terminate the vector. */
2648 switches[n_switches].args[j] = 0;
2650 else if (*switches_need_spaces != 0 && (c == 'o' || c == 'L'))
2652 /* On some systems, ld cannot handle -o or -L without space.
2653 So split the -o or -L from its argument. */
2654 switches[n_switches].part1 = (c == 'o' ? "o" : "L");
2655 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2656 switches[n_switches].args[0] = xmalloc (strlen (p));
2657 strcpy (switches[n_switches].args[0], &p[1]);
2658 switches[n_switches].args[1] = 0;
2661 switches[n_switches].args = 0;
2663 switches[n_switches].live_cond = 0;
2664 switches[n_switches].valid = 0;
2665 /* This is always valid, since gcc.c itself understands it. */
2666 if (!strcmp (p, "save-temps"))
2667 switches[n_switches].valid = 1;
2672 if ((argv[i][0] != '-' || argv[i][1] != 'l')
2673 && strcmp (argv[i], "-")
2674 && access (argv[i], R_OK) < 0)
2676 perror_with_name (argv[i]);
2681 infiles[n_infiles].language = spec_lang;
2682 infiles[n_infiles++].name = argv[i];
2687 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2688 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2690 switches[n_switches].part1 = 0;
2691 infiles[n_infiles].name = 0;
2693 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
2694 if (gcc_exec_prefix)
2696 temp = (char *) xmalloc (strlen (gcc_exec_prefix) + strlen (spec_version)
2697 + strlen (spec_machine) + 3);
2698 strcpy (temp, gcc_exec_prefix);
2699 strcat (temp, spec_machine);
2701 strcat (temp, spec_version);
2703 gcc_exec_prefix = temp;
2707 /* Process a spec string, accumulating and running commands. */
2709 /* These variables describe the input file name.
2710 input_file_number is the index on outfiles of this file,
2711 so that the output file name can be stored for later use by %o.
2712 input_basename is the start of the part of the input file
2713 sans all directory names, and basename_length is the number
2714 of characters starting there excluding the suffix .c or whatever. */
2716 static char *input_filename;
2717 static int input_file_number;
2718 static int input_filename_length;
2719 static int basename_length;
2720 static char *input_basename;
2721 static char *input_suffix;
2723 /* These are variables used within do_spec and do_spec_1. */
2725 /* Nonzero if an arg has been started and not yet terminated
2726 (with space, tab or newline). */
2727 static int arg_going;
2729 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2730 is a temporary file name. */
2731 static int delete_this_arg;
2733 /* Nonzero means %w has been seen; the next arg to be terminated
2734 is the output file name of this compilation. */
2735 static int this_is_output_file;
2737 /* Nonzero means %s has been seen; the next arg to be terminated
2738 is the name of a library file and we should try the standard
2739 search dirs for it. */
2740 static int this_is_library_file;
2742 /* Nonzero means that the input of this command is coming from a pipe. */
2743 static int input_from_pipe;
2745 /* Process the spec SPEC and run the commands specified therein.
2746 Returns 0 if the spec is successfully processed; -1 if failed. */
2756 delete_this_arg = 0;
2757 this_is_output_file = 0;
2758 this_is_library_file = 0;
2759 input_from_pipe = 0;
2761 value = do_spec_1 (spec, 0, NULL_PTR);
2763 /* Force out any unfinished command.
2764 If -pipe, this forces out the last command if it ended in `|'. */
2767 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2770 if (argbuf_index > 0)
2777 /* Process the sub-spec SPEC as a portion of a larger spec.
2778 This is like processing a whole spec except that we do
2779 not initialize at the beginning and we do not supply a
2780 newline by default at the end.
2781 INSWITCH nonzero means don't process %-sequences in SPEC;
2782 in this case, % is treated as an ordinary character.
2783 This is used while substituting switches.
2784 INSWITCH nonzero also causes SPC not to terminate an argument.
2786 Value is zero unless a line was finished
2787 and the command on that line reported an error. */
2790 do_spec_1 (spec, inswitch, soft_matched_part)
2793 char *soft_matched_part;
2795 register char *p = spec;
2802 /* If substituting a switch, treat all chars like letters.
2803 Otherwise, NL, SPC, TAB and % are special. */
2804 switch (inswitch ? 'a' : c)
2807 /* End of line: finish any pending argument,
2808 then run the pending command if one has been started. */
2811 obstack_1grow (&obstack, 0);
2812 string = obstack_finish (&obstack);
2813 if (this_is_library_file)
2814 string = find_file (string);
2815 store_arg (string, delete_this_arg, this_is_output_file);
2816 if (this_is_output_file)
2817 outfiles[input_file_number] = string;
2821 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2824 for (i = 0; i < n_switches; i++)
2825 if (!strcmp (switches[i].part1, "pipe"))
2828 /* A `|' before the newline means use a pipe here,
2829 but only if -pipe was specified.
2830 Otherwise, execute now and don't pass the `|' as an arg. */
2833 input_from_pipe = 1;
2834 switches[i].valid = 1;
2841 if (argbuf_index > 0)
2847 /* Reinitialize for a new command, and for a new argument. */
2850 delete_this_arg = 0;
2851 this_is_output_file = 0;
2852 this_is_library_file = 0;
2853 input_from_pipe = 0;
2857 /* End any pending argument. */
2860 obstack_1grow (&obstack, 0);
2861 string = obstack_finish (&obstack);
2862 if (this_is_library_file)
2863 string = find_file (string);
2864 store_arg (string, delete_this_arg, this_is_output_file);
2865 if (this_is_output_file)
2866 outfiles[input_file_number] = string;
2870 obstack_1grow (&obstack, c);
2876 /* Space or tab ends an argument if one is pending. */
2879 obstack_1grow (&obstack, 0);
2880 string = obstack_finish (&obstack);
2881 if (this_is_library_file)
2882 string = find_file (string);
2883 store_arg (string, delete_this_arg, this_is_output_file);
2884 if (this_is_output_file)
2885 outfiles[input_file_number] = string;
2887 /* Reinitialize for a new argument. */
2889 delete_this_arg = 0;
2890 this_is_output_file = 0;
2891 this_is_library_file = 0;
2898 fatal ("Invalid specification! Bug in cc.");
2901 obstack_grow (&obstack, input_basename, basename_length);
2906 delete_this_arg = 2;
2909 /* Dump out the directories specified with LIBRARY_PATH,
2910 followed by the absolute directories
2911 that we search for startfiles. */
2914 struct prefix_list *pl = startfile_prefix.plist;
2916 char *buffer = (char *) xmalloc (bufsize);
2919 for (; pl; pl = pl->next)
2921 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
2922 /* Used on systems which record the specified -L dirs
2923 and use them to search for dynamic linking. */
2924 /* Relative directories always come from -B,
2925 and it is better not to use them for searching
2926 at run time. In particular, stage1 loses */
2927 if (pl->prefix[0] != '/')
2932 if (is_directory (pl->prefix, machine_suffix, 1))
2934 do_spec_1 ("-L", 0, NULL_PTR);
2935 #ifdef SPACE_AFTER_L_OPTION
2936 do_spec_1 (" ", 0, NULL_PTR);
2938 do_spec_1 (pl->prefix, 1, NULL_PTR);
2939 /* Remove slash from machine_suffix. */
2940 if (strlen (machine_suffix) >= bufsize)
2941 bufsize = strlen (machine_suffix) * 2 + 1;
2942 buffer = (char *) xrealloc (buffer, bufsize);
2943 strcpy (buffer, machine_suffix);
2944 idx = strlen (buffer);
2945 if (buffer[idx - 1] == '/')
2946 buffer[idx - 1] = 0;
2947 do_spec_1 (buffer, 1, NULL_PTR);
2948 /* Make this a separate argument. */
2949 do_spec_1 (" ", 0, NULL_PTR);
2952 if (!pl->require_machine_suffix)
2954 if (is_directory (pl->prefix, "", 1))
2956 do_spec_1 ("-L", 0, NULL_PTR);
2957 #ifdef SPACE_AFTER_L_OPTION
2958 do_spec_1 (" ", 0, NULL_PTR);
2960 /* Remove slash from pl->prefix. */
2961 if (strlen (pl->prefix) >= bufsize)
2962 bufsize = strlen (pl->prefix) * 2 + 1;
2963 buffer = (char *) xrealloc (buffer, bufsize);
2964 strcpy (buffer, pl->prefix);
2965 idx = strlen (buffer);
2966 if (buffer[idx - 1] == '/')
2967 buffer[idx - 1] = 0;
2968 do_spec_1 (buffer, 1, NULL_PTR);
2969 /* Make this a separate argument. */
2970 do_spec_1 (" ", 0, NULL_PTR);
2979 /* {...:%efoo} means report an error with `foo' as error message
2980 and don't execute any more commands for this file. */
2984 while (*p != 0 && *p != '\n') p++;
2985 buf = (char *) alloca (p - q + 1);
2986 strncpy (buf, q, p - q);
2996 if (save_temps_flag)
2997 obstack_grow (&obstack, input_basename, basename_length);
3000 #ifdef MKTEMP_EACH_FILE
3001 /* ??? This has a problem: the total number of
3002 values mktemp can return is limited.
3003 That matters for the names of object files.
3004 In 2.4, do something about that. */
3005 struct temp_name *t;
3007 while (*p == '.' || isalpha (*p))
3010 /* See if we already have an association of %g/%u/%U and
3012 for (t = temp_names; t; t = t->next)
3013 if (t->length == p - suffix
3014 && strncmp (t->suffix, suffix, p - suffix) == 0
3015 && t->unique == (c != 'g'))
3018 /* Make a new association if needed. %u requires one. */
3019 if (t == 0 || c == 'u')
3023 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3024 t->next = temp_names;
3027 t->length = p - suffix;
3028 t->suffix = save_string (suffix, p - suffix);
3029 t->unique = (c != 'g');
3030 choose_temp_base ();
3031 t->filename = temp_filename;
3032 t->filename_length = temp_filename_length;
3035 obstack_grow (&obstack, t->filename, t->filename_length);
3036 delete_this_arg = 1;
3038 obstack_grow (&obstack, temp_filename, temp_filename_length);
3039 if (c == 'u' || c == 'U')
3045 sprintf (buff, "%d", unique);
3046 obstack_grow (&obstack, buff, strlen (buff));
3049 delete_this_arg = 1;
3055 obstack_grow (&obstack, input_filename, input_filename_length);
3061 struct prefix_list *pl = include_prefix.plist;
3063 if (gcc_exec_prefix)
3065 do_spec_1 ("-iprefix", 1, NULL_PTR);
3066 /* Make this a separate argument. */
3067 do_spec_1 (" ", 0, NULL_PTR);
3068 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3069 do_spec_1 (" ", 0, NULL_PTR);
3072 for (; pl; pl = pl->next)
3074 do_spec_1 ("-isystem", 1, NULL_PTR);
3075 /* Make this a separate argument. */
3076 do_spec_1 (" ", 0, NULL_PTR);
3077 do_spec_1 (pl->prefix, 1, NULL_PTR);
3078 do_spec_1 (" ", 0, NULL_PTR);
3086 for (f = 0; f < n_infiles; f++)
3087 store_arg (outfiles[f], 0, 0);
3092 this_is_library_file = 1;
3096 this_is_output_file = 1;
3101 int index = argbuf_index;
3102 /* Handle the {...} following the %W. */
3105 p = handle_braces (p + 1);
3108 /* If any args were output, mark the last one for deletion
3110 if (argbuf_index != index)
3111 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3115 /* %x{OPTION} records OPTION for %X to output. */
3121 /* Skip past the option value and make a copy. */
3126 string = save_string (p1 + 1, p - p1 - 2);
3128 /* See if we already recorded this option. */
3129 for (i = 0; i < n_linker_options; i++)
3130 if (! strcmp (string, linker_options[i]))
3136 /* This option is new; add it. */
3138 if (!linker_options)
3140 = (char **) xmalloc (n_linker_options * sizeof (char **));
3143 = (char **) xrealloc (linker_options,
3144 n_linker_options * sizeof (char **));
3146 linker_options[n_linker_options - 1] = string;
3150 /* Dump out the options accumulated previously using %x,
3151 -Xlinker and -Wl,. */
3153 for (i = 0; i < n_linker_options; i++)
3155 do_spec_1 (linker_options[i], 1, NULL_PTR);
3156 /* Make each accumulated option a separate argument. */
3157 do_spec_1 (" ", 0, NULL_PTR);
3161 /* Dump out the options accumulated previously using -Wa,. */
3163 for (i = 0; i < n_assembler_options; i++)
3165 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3166 /* Make each accumulated option a separate argument. */
3167 do_spec_1 (" ", 0, NULL_PTR);
3171 /* Here are digits and numbers that just process
3172 a certain constant string as a spec. */
3175 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3181 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3187 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3193 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3199 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3205 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3211 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3217 value = do_spec_1 (link_spec, 0, NULL_PTR);
3223 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3230 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3234 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3238 if (! strncmp (y, "-D", 2))
3239 /* Copy the whole option. */
3240 while (*y && *y != ' ' && *y != '\t')
3242 else if (*y == ' ' || *y == '\t')
3243 /* Copy whitespace to the result. */
3245 /* Don't copy other options. */
3252 value = do_spec_1 (buf, 0, NULL_PTR);
3260 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3264 /* Copy all of CPP_PREDEFINES into BUF,
3265 but put __ after every -D and at the end of each arg. */
3269 if (! strncmp (y, "-D", 2))
3276 if (strncmp (y, "__", 2))
3278 /* Stick __ at front of macro name. */
3281 /* Arrange to stick __ at the end as well. */
3285 /* Copy the macro name. */
3286 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3295 /* Copy the value given, if any. */
3296 while (*y && *y != ' ' && *y != '\t')
3299 else if (*y == ' ' || *y == '\t')
3300 /* Copy whitespace to the result. */
3302 /* Don't copy -A options */
3308 /* Copy all of CPP_PREDEFINES into BUF,
3309 but put __ after every -D. */
3313 if (! strncmp (y, "-D", 2))
3317 if (strncmp (y, "__", 2))
3319 /* Stick -D__ at front of macro name. */
3325 /* Copy the macro name. */
3326 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3329 /* Copy the value given, if any. */
3330 while (*y && *y != ' ' && *y != '\t')
3335 /* Do not copy this macro - we have just done it before */
3336 while (*y && *y != ' ' && *y != '\t')
3340 else if (*y == ' ' || *y == '\t')
3341 /* Copy whitespace to the result. */
3343 /* Don't copy -A options */
3349 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3353 if (! strncmp (y, "-A", 2))
3354 /* Copy the whole option. */
3355 while (*y && *y != ' ' && *y != '\t')
3357 else if (*y == ' ' || *y == '\t')
3358 /* Copy whitespace to the result. */
3360 /* Don't copy other options. */
3367 value = do_spec_1 (buf, 0, NULL_PTR);
3374 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3379 /* Here we define characters other than letters and digits. */
3382 p = handle_braces (p);
3388 obstack_1grow (&obstack, '%');
3392 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3393 do_spec_1 (" ", 0, NULL_PTR);
3396 /* Process a string found as the value of a spec given by name.
3397 This feature allows individual machine descriptions
3398 to add and use their own specs.
3399 %[...] modifies -D options the way %P does;
3400 %(...) uses the spec unmodified. */
3405 struct spec_list *sl;
3408 /* The string after the S/P is the name of a spec that is to be
3410 while (*p && *p != ')' && *p != ']')
3413 /* See if it's in the list */
3414 for (len = p - name, sl = specs; sl; sl = sl->next)
3415 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3425 value = do_spec_1 (name, 0, NULL_PTR);
3431 char *x = (char *) alloca (strlen (name) * 2 + 1);
3435 /* Copy all of NAME into BUF, but put __ after
3436 every -D and at the end of each arg, */
3439 if (! strncmp (y, "-D", 2))
3447 else if (*y == ' ' || *y == 0)
3461 value = do_spec_1 (buf, 0, NULL_PTR);
3467 /* Discard the closing paren or bracket. */
3475 int c1 = *p++; /* Select first or second version number. */
3476 char *v = compiler_version;
3478 /* If desired, advance to second version number. */
3481 /* Set P after the first period. */
3482 while (*v != 0 && *v != ' ' && *v != '.')
3487 /* Set Q at the next period or at the end. */
3489 while (*q != 0 && *q != ' ' && *q != '.')
3491 /* Empty string means zero. */
3497 /* Put that part into the command. */
3498 obstack_grow (&obstack, v, q - v);
3504 if (input_from_pipe)
3505 do_spec_1 ("-", 0, NULL_PTR);
3514 /* Backslash: treat next character as ordinary. */
3519 /* Ordinary character: put it into the current argument. */
3520 obstack_1grow (&obstack, c);
3524 return 0; /* End of string */
3527 /* Return 0 if we call do_spec_1 and that returns -1. */
3540 /* A `|' after the open-brace means,
3541 if the test fails, output a single minus sign rather than nothing.
3542 This is used in %{|!pipe:...}. */
3546 /* A `!' after the open-brace negates the condition:
3547 succeed if the specified switch is not present. */
3551 /* A `.' after the open-brace means test against the current suffix. */
3561 while (*p != ':' && *p != '}') p++;
3564 register int count = 1;
3582 int found = (input_suffix != 0
3583 && strlen (input_suffix) == p - filter
3584 && strncmp (input_suffix, filter, p - filter) == 0);
3590 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3595 else if (p[-1] == '*' && p[0] == '}')
3597 /* Substitute all matching switches as separate args. */
3600 for (i = 0; i < n_switches; i++)
3601 if (!strncmp (switches[i].part1, filter, p - filter)
3602 && check_live_switch (i, p - filter))
3607 /* Test for presence of the specified switch. */
3611 /* If name specified ends in *, as in {x*:...},
3612 check for %* and handle that case. */
3613 if (p[-1] == '*' && !negate)
3618 /* First see whether we have %*. */
3622 if (*r == '%' && r[1] == '*')
3626 /* If we do, handle that case. */
3629 /* Substitute all matching switches as separate args.
3630 But do this by substituting for %*
3631 in the text that follows the colon. */
3633 unsigned hard_match_len = p - filter - 1;
3634 char *string = save_string (p + 1, q - p - 2);
3636 for (i = 0; i < n_switches; i++)
3637 if (!strncmp (switches[i].part1, filter, hard_match_len)
3638 && check_live_switch (i, -1))
3640 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3641 /* Pass any arguments this switch has. */
3649 /* If name specified ends in *, as in {x*:...},
3650 check for presence of any switch name starting with x. */
3653 for (i = 0; i < n_switches; i++)
3655 unsigned hard_match_len = p - filter - 1;
3657 if (!strncmp (switches[i].part1, filter, hard_match_len)
3658 && check_live_switch (i, hard_match_len))
3664 /* Otherwise, check for presence of exact name specified. */
3667 for (i = 0; i < n_switches; i++)
3669 if (!strncmp (switches[i].part1, filter, p - filter)
3670 && switches[i].part1[p - filter] == 0
3671 && check_live_switch (i, -1))
3679 /* If it is as desired (present for %{s...}, absent for %{-s...})
3680 then substitute either the switch or the specified
3681 conditional text. */
3682 if (present != negate)
3690 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3696 /* Here if a %{|...} conditional fails: output a minus sign,
3697 which means "standard output" or "standard input". */
3698 do_spec_1 ("-", 0, NULL_PTR);
3705 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
3706 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
3707 spec, or -1 if either exact match or %* is used.
3709 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
3710 whose value does not begin with "no-" is obsoleted by the same value
3711 with the "no-", similarly for a switch with the "no-" prefix. */
3714 check_live_switch (switchnum, prefix_length)
3718 char *name = switches[switchnum].part1;
3721 /* In the common case of {<at-most-one-letter>*}, a negating
3722 switch would always match, so ignore that case. We will just
3723 send the conflicting switches to the compiler phase. */
3724 if (prefix_length >= 0 && prefix_length <= 1)
3727 /* If we already processed this switch and determined if it was
3728 live or not, return our past determination. */
3729 if (switches[switchnum].live_cond != 0)
3730 return switches[switchnum].live_cond > 0;
3732 /* Now search for duplicate in a manner that depends on the name. */
3736 for (i = switchnum + 1; i < n_switches; i++)
3737 if (switches[i].part1[0] == 'O')
3739 switches[switchnum].valid = 1;
3740 switches[switchnum].live_cond = -1;
3745 case 'W': case 'f': case 'm':
3746 if (! strncmp (name + 1, "no-", 3))
3748 /* We have Xno-YYY, search for XYYY. */
3749 for (i = switchnum + 1; i < n_switches; i++)
3750 if (switches[i].part1[0] == name[0]
3751 && ! strcmp (&switches[i].part1[1], &name[4]))
3753 switches[switchnum].valid = 1;
3754 switches[switchnum].live_cond = -1;
3760 /* We have XYYY, search for Xno-YYY. */
3761 for (i = switchnum + 1; i < n_switches; i++)
3762 if (switches[i].part1[0] == name[0]
3763 && switches[i].part1[1] == 'n'
3764 && switches[i].part1[2] == 'o'
3765 && switches[i].part1[3] == '-'
3766 && !strcmp (&switches[i].part1[4], &name[1]))
3768 switches[switchnum].valid = 1;
3769 switches[switchnum].live_cond = -1;
3776 /* Otherwise the switch is live. */
3777 switches[switchnum].live_cond = 1;
3781 /* Pass a switch to the current accumulating command
3782 in the same form that we received it.
3783 SWITCHNUM identifies the switch; it is an index into
3784 the vector of switches gcc received, which is `switches'.
3785 This cannot fail since it never finishes a command line.
3787 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
3790 give_switch (switchnum, omit_first_word)
3792 int omit_first_word;
3794 if (!omit_first_word)
3796 do_spec_1 ("-", 0, NULL_PTR);
3797 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
3799 do_spec_1 (" ", 0, NULL_PTR);
3800 if (switches[switchnum].args != 0)
3803 for (p = switches[switchnum].args; *p; p++)
3805 do_spec_1 (*p, 1, NULL_PTR);
3806 do_spec_1 (" ", 0, NULL_PTR);
3809 switches[switchnum].valid = 1;
3812 /* Search for a file named NAME trying various prefixes including the
3813 user's -B prefix and some standard ones.
3814 Return the absolute file name found. If nothing is found, return NAME. */
3822 newname = find_a_file (&startfile_prefix, name, R_OK);
3823 return newname ? newname : name;
3826 /* Determine whether a directory exists. If LINKER, return 0 for
3827 certain fixed names not needed by the linker. If not LINKER, it is
3828 only important to return 0 if the host machine has a small ARG_MAX
3832 is_directory (path1, path2, linker)
3837 int len1 = strlen (path1);
3838 int len2 = strlen (path2);
3839 char *path = (char *) alloca (3 + len1 + len2);
3843 #ifndef SMALL_ARG_MAX
3848 /* Construct the path from the two parts. Ensure the string ends with "/.".
3849 The resulting path will be a directory even if the given path is a
3851 bcopy (path1, path, len1);
3852 bcopy (path2, path + len1, len2);
3853 cp = path + len1 + len2;
3859 /* Exclude directories that the linker is known to search. */
3861 && ((cp - path == 6 && strcmp (path, "/lib/.") == 0)
3862 || (cp - path == 10 && strcmp (path, "/usr/lib/.") == 0)))
3865 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
3868 /* On fatal signals, delete all the temporary files. */
3871 fatal_error (signum)
3874 signal (signum, SIG_DFL);
3875 delete_failure_queue ();
3876 delete_temp_files ();
3877 /* Get the same signal again, this time not handled,
3878 so its normal effect occurs. */
3879 kill (getpid (), signum);
3890 int linker_was_run = 0;
3891 char *explicit_link_files;
3895 p = argv[0] + strlen (argv[0]);
3896 while (p != argv[0] && p[-1] != '/') --p;
3899 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
3900 signal (SIGINT, fatal_error);
3902 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
3903 signal (SIGHUP, fatal_error);
3905 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
3906 signal (SIGTERM, fatal_error);
3908 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
3909 signal (SIGPIPE, fatal_error);
3913 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
3915 obstack_init (&obstack);
3917 /* Set up to remember the pathname of gcc and any options
3918 needed for collect. We use argv[0] instead of programname because
3919 we need the complete pathname. */
3920 obstack_init (&collect_obstack);
3921 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
3922 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
3923 putenv (obstack_finish (&collect_obstack));
3925 /* Choose directory for temp files. */
3927 choose_temp_base ();
3929 /* Make a table of what switches there are (switches, n_switches).
3930 Make a table of specified input files (infiles, n_infiles).
3931 Decode switches that are handled locally. */
3933 process_command (argc, argv);
3935 /* Initialize the vector of specs to just the default.
3936 This means one element containing 0s, as a terminator. */
3938 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
3939 bcopy (default_compilers, compilers, sizeof default_compilers);
3940 n_compilers = n_default_compilers;
3942 /* Read specs from a file if there is one. */
3944 machine_suffix = concat (spec_machine, "/", concat (spec_version, "/", ""));
3945 just_machine_suffix = concat (spec_machine, "/", "");
3947 specs_file = find_a_file (&startfile_prefix, "specs", R_OK);
3948 /* Read the specs file unless it is a default one. */
3949 if (specs_file != 0 && strcmp (specs_file, "specs"))
3950 read_specs (specs_file);
3952 /* If not cross-compiling, look for startfiles in the standard places. */
3953 /* The fact that these are done here, after reading the specs file,
3954 means that it cannot be found in these directories.
3955 But that's okay. It should never be there anyway. */
3958 #ifdef MD_EXEC_PREFIX
3959 add_prefix (&exec_prefix, md_exec_prefix, 0, 0, NULL_PTR);
3960 add_prefix (&startfile_prefix, md_exec_prefix, 0, 0, NULL_PTR);
3963 #ifdef MD_STARTFILE_PREFIX
3964 add_prefix (&startfile_prefix, md_startfile_prefix, 0, 0, NULL_PTR);
3967 #ifdef MD_STARTFILE_PREFIX_1
3968 add_prefix (&startfile_prefix, md_startfile_prefix_1, 0, 0, NULL_PTR);
3971 /* If standard_startfile_prefix is relative, base it on
3972 standard_exec_prefix. This lets us move the installed tree
3973 as a unit. If GCC_EXEC_PREFIX is defined, base
3974 standard_startfile_prefix on that as well. */
3975 if (*standard_startfile_prefix == '/')
3976 add_prefix (&startfile_prefix, standard_startfile_prefix, 0, 0,
3980 if (gcc_exec_prefix)
3981 add_prefix (&startfile_prefix,
3982 concat (gcc_exec_prefix,
3983 standard_startfile_prefix,
3986 add_prefix (&startfile_prefix,
3987 concat (standard_exec_prefix,
3989 standard_startfile_prefix),
3993 add_prefix (&startfile_prefix, standard_startfile_prefix_1, 0, 0,
3995 add_prefix (&startfile_prefix, standard_startfile_prefix_2, 0, 0,
3997 #if 0 /* Can cause surprises, and one can use -B./ instead. */
3998 add_prefix (&startfile_prefix, "./", 0, 1, NULL_PTR);
4002 /* Now we have the specs.
4003 Set the `valid' bits for switches that match anything in any spec. */
4005 validate_all_switches ();
4007 /* Warn about any switches that no pass was interested in. */
4009 for (i = 0; i < n_switches; i++)
4010 if (! switches[i].valid)
4011 error ("unrecognized option `-%s'", switches[i].part1);
4013 /* Obey some of the options. */
4015 if (print_file_name)
4017 printf ("%s\n", find_file (print_file_name));
4021 if (print_prog_name)
4023 char *newname = find_a_file (&exec_prefix, print_prog_name, X_OK);
4024 printf ("%s\n", (newname ? newname : print_prog_name));
4030 fprintf (stderr, "gcc version %s\n", version_string);
4036 fatal ("No input files");
4038 /* Make a place to record the compiler output file names
4039 that correspond to the input files. */
4041 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4042 bzero (outfiles, n_infiles * sizeof (char *));
4044 /* Record which files were specified explicitly as link input. */
4046 explicit_link_files = xmalloc (n_infiles);
4047 bzero (explicit_link_files, n_infiles);
4049 for (i = 0; i < n_infiles; i++)
4051 register struct compiler *cp = 0;
4052 int this_file_error = 0;
4054 /* Tell do_spec what to substitute for %i. */
4056 input_filename = infiles[i].name;
4057 input_filename_length = strlen (input_filename);
4058 input_file_number = i;
4060 /* Use the same thing in %o, unless cp->spec says otherwise. */
4062 outfiles[i] = input_filename;
4064 /* Figure out which compiler from the file's suffix. */
4066 cp = lookup_compiler (infiles[i].name, input_filename_length,
4067 infiles[i].language);
4071 /* Ok, we found an applicable compiler. Run its spec. */
4072 /* First say how much of input_filename to substitute for %b */
4076 input_basename = input_filename;
4077 for (p = input_filename; *p; p++)
4079 input_basename = p + 1;
4081 /* Find a suffix starting with the last period,
4082 and set basename_length to exclude that suffix. */
4083 basename_length = strlen (input_basename);
4084 p = input_basename + basename_length;
4085 while (p != input_basename && *p != '.') --p;
4086 if (*p == '.' && p != input_basename)
4088 basename_length = p - input_basename;
4089 input_suffix = p + 1;
4095 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4097 len += strlen (cp->spec[j]);
4099 p = (char *) xmalloc (len + 1);
4102 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4105 strcpy (p + len, cp->spec[j]);
4106 len += strlen (cp->spec[j]);
4109 value = do_spec (p);
4112 this_file_error = 1;
4115 /* If this file's name does not contain a recognized suffix,
4116 record it as explicit linker input. */
4119 explicit_link_files[i] = 1;
4121 /* Clear the delete-on-failure queue, deleting the files in it
4122 if this compilation failed. */
4124 if (this_file_error)
4126 delete_failure_queue ();
4129 /* If this compilation succeeded, don't delete those files later. */
4130 clear_failure_queue ();
4133 /* Run ld to link all the compiler output files. */
4135 if (error_count == 0)
4137 int tmp = execution_count;
4141 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4143 putenv_from_prefixes (&exec_prefix, "COMPILER_PATH=");
4144 putenv_from_prefixes (&startfile_prefix, "LIBRARY_PATH=");
4146 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4148 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4149 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4152 for (i = 0; i < n_switches; i++)
4156 obstack_grow (&collect_obstack, " ", 1);
4159 obstack_grow (&collect_obstack, "-", 1);
4160 obstack_grow (&collect_obstack, switches[i].part1,
4161 strlen (switches[i].part1));
4163 for (args = switches[i].args; args && *args; args++)
4165 obstack_grow (&collect_obstack, " ", 1);
4166 obstack_grow (&collect_obstack, *args, strlen (*args));
4169 obstack_grow (&collect_obstack, "\0", 1);
4170 putenv (obstack_finish (&collect_obstack));
4172 value = do_spec (link_command_spec);
4175 linker_was_run = (tmp != execution_count);
4178 /* Warn if a -B option was specified but the prefix was never used. */
4179 unused_prefix_warnings (&exec_prefix);
4180 unused_prefix_warnings (&startfile_prefix);
4182 /* If options said don't run linker,
4183 complain about input files to be given to the linker. */
4185 if (! linker_was_run && error_count == 0)
4186 for (i = 0; i < n_infiles; i++)
4187 if (explicit_link_files[i])
4188 error ("%s: linker input file unused since linking not done",
4191 /* Delete some or all of the temporary files we made. */
4194 delete_failure_queue ();
4195 delete_temp_files ();
4197 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4202 /* Find the proper compilation spec for the file name NAME,
4203 whose length is LENGTH. LANGUAGE is the specified language,
4204 or 0 if none specified. */
4206 static struct compiler *
4207 lookup_compiler (name, length, language)
4212 struct compiler *cp;
4214 /* Look for the language, if one is spec'd. */
4217 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4221 if (cp->suffix[0] == '@'
4222 && !strcmp (cp->suffix + 1, language))
4226 error ("language %s not recognized", language);
4229 /* Look for a suffix. */
4230 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4232 if (/* The suffix `-' matches only the file name `-'. */
4233 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4235 (strlen (cp->suffix) < length
4236 /* See if the suffix matches the end of NAME. */
4237 && !strcmp (cp->suffix,
4238 name + length - strlen (cp->suffix))))
4240 if (cp->spec[0][0] == '@')
4242 struct compiler *new;
4243 /* An alias entry maps a suffix to a language.
4244 Search for the language; pass 0 for NAME and LENGTH
4245 to avoid infinite recursion if language not found.
4246 Construct the new compiler spec. */
4247 language = cp->spec[0] + 1;
4248 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4249 new->suffix = cp->suffix;
4250 bcopy (lookup_compiler (NULL_PTR, 0, language)->spec,
4251 new->spec, sizeof new->spec);
4254 /* A non-alias entry: return it. */
4266 register char *value = (char *) malloc (size);
4268 fatal ("virtual memory exhausted");
4273 xrealloc (ptr, size)
4277 register char *value = (char *) realloc (ptr, size);
4279 fatal ("virtual memory exhausted");
4283 /* Return a newly-allocated string whose contents concatenate those of s1, s2, s3. */
4289 int len1 = strlen (s1), len2 = strlen (s2), len3 = strlen (s3);
4290 char *result = xmalloc (len1 + len2 + len3 + 1);
4292 strcpy (result, s1);
4293 strcpy (result + len1, s2);
4294 strcpy (result + len1 + len2, s3);
4295 *(result + len1 + len2 + len3) = 0;
4301 save_string (s, len)
4305 register char *result = xmalloc (len + 1);
4307 bcopy (s, result, len);
4313 pfatal_with_name (name)
4318 if (errno < sys_nerr)
4319 s = concat ("%s: ", sys_errlist[errno], "");
4321 s = "cannot open %s";
4326 perror_with_name (name)
4331 if (errno < sys_nerr)
4332 s = concat ("%s: ", sys_errlist[errno], "");
4334 s = "cannot open %s";
4344 if (errno < sys_nerr)
4345 s = concat ("installation problem, cannot exec %s: ",
4346 sys_errlist[errno], "");
4348 s = "installation problem, cannot exec %s";
4352 /* More 'friendly' abort that prints the line and file.
4353 config.h can #define abort fancy_abort if you like that sort of thing. */
4358 fatal ("Internal gcc abort.");
4363 /* Output an error message and exit */
4366 fatal VPROTO((char *format, ...))
4373 VA_START (ap, format);
4376 format = va_arg (ap, char*);
4379 fprintf (stderr, "%s: ", programname);
4380 vfprintf (stderr, format, ap);
4382 fprintf (stderr, "\n");
4383 delete_temp_files ();
4388 error VPROTO((char *format, ...))
4395 VA_START (ap, format);
4398 format = va_arg (ap, char*);
4401 fprintf (stderr, "%s: ", programname);
4402 vfprintf (stderr, format, ap);
4405 fprintf (stderr, "\n");
4408 #else /* not HAVE_VPRINTF */
4411 fatal (msg, arg1, arg2)
4412 char *msg, *arg1, *arg2;
4414 error (msg, arg1, arg2);
4415 delete_temp_files ();
4420 error (msg, arg1, arg2)
4421 char *msg, *arg1, *arg2;
4423 fprintf (stderr, "%s: ", programname);
4424 fprintf (stderr, msg, arg1, arg2);
4425 fprintf (stderr, "\n");
4428 #endif /* not HAVE_VPRINTF */
4432 validate_all_switches ()
4434 struct compiler *comp;
4437 struct spec_list *spec;
4439 for (comp = compilers; comp->spec[0]; comp++)
4442 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4446 if (c == '%' && *p == '{')
4447 /* We have a switch spec. */
4448 validate_switches (p + 1);
4452 /* look through the linked list of extra specs read from the specs file */
4453 for (spec = specs; spec ; spec = spec->next)
4457 if (c == '%' && *p == '{')
4458 /* We have a switch spec. */
4459 validate_switches (p + 1);
4462 p = link_command_spec;
4464 if (c == '%' && *p == '{')
4465 /* We have a switch spec. */
4466 validate_switches (p + 1);
4468 /* Now notice switches mentioned in the machine-specific specs. */
4472 if (c == '%' && *p == '{')
4473 /* We have a switch spec. */
4474 validate_switches (p + 1);
4478 if (c == '%' && *p == '{')
4479 /* We have a switch spec. */
4480 validate_switches (p + 1);
4484 if (c == '%' && *p == '{')
4485 /* We have a switch spec. */
4486 validate_switches (p + 1);
4488 p = signed_char_spec;
4490 if (c == '%' && *p == '{')
4491 /* We have a switch spec. */
4492 validate_switches (p + 1);
4496 if (c == '%' && *p == '{')
4497 /* We have a switch spec. */
4498 validate_switches (p + 1);
4502 if (c == '%' && *p == '{')
4503 /* We have a switch spec. */
4504 validate_switches (p + 1);
4508 if (c == '%' && *p == '{')
4509 /* We have a switch spec. */
4510 validate_switches (p + 1);
4514 if (c == '%' && *p == '{')
4515 /* We have a switch spec. */
4516 validate_switches (p + 1);
4520 if (c == '%' && *p == '{')
4521 /* We have a switch spec. */
4522 validate_switches (p + 1);
4525 /* Look at the switch-name that comes after START
4526 and mark as valid all supplied switches that match it. */
4529 validate_switches (start)
4532 register char *p = start;
4547 while (*p != ':' && *p != '}') p++;
4551 else if (p[-1] == '*')
4553 /* Mark all matching switches as valid. */
4555 for (i = 0; i < n_switches; i++)
4556 if (!strncmp (switches[i].part1, filter, p - filter))
4557 switches[i].valid = 1;
4561 /* Mark an exact matching switch as valid. */
4562 for (i = 0; i < n_switches; i++)
4564 if (!strncmp (switches[i].part1, filter, p - filter)
4565 && switches[i].part1[p - filter] == 0)
4566 switches[i].valid = 1;