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
343 The character | is used to indicate that a command should be piped to
344 the following command, but only if -pipe is specified.
346 Note that it is built into CC which switches take arguments and which
347 do not. You might think it would be useful to generalize this to
348 allow each compiler's spec to say which switches take arguments. But
349 this cannot be done in a consistent fashion. CC cannot even decide
350 which input files have been specified without knowing which switches
351 take arguments, and it must know which input files to compile in order
352 to tell which compilers to run.
354 CC also knows implicitly that arguments starting in `-l' are to be
355 treated as compiler output files, and passed to the linker in their
356 proper position among the other output files. */
358 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
360 /* config.h can define ASM_SPEC to provide extra args to the assembler
361 or extra switch-translations. */
366 /* config.h can define ASM_FINAL_SPEC to run a post processor after
367 the assembler has run. */
368 #ifndef ASM_FINAL_SPEC
369 #define ASM_FINAL_SPEC ""
372 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
373 or extra switch-translations. */
378 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
379 or extra switch-translations. */
384 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
385 or extra switch-translations. */
387 #define CC1PLUS_SPEC ""
390 /* config.h can define LINK_SPEC to provide extra args to the linker
391 or extra switch-translations. */
396 /* config.h can define LIB_SPEC to override the default libraries. */
398 #define LIB_SPEC "%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
401 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
402 #ifndef STARTFILE_SPEC
403 #define STARTFILE_SPEC \
404 "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}"
407 /* config.h can define SWITCHES_NEED_SPACES to control passing -o and -L.
408 Make the string nonempty to require spaces there. */
409 #ifndef SWITCHES_NEED_SPACES
410 #define SWITCHES_NEED_SPACES ""
413 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
415 #define ENDFILE_SPEC ""
418 /* This spec is used for telling cpp whether char is signed or not. */
419 #ifndef SIGNED_CHAR_SPEC
420 /* Use #if rather than ?:
421 because MIPS C compiler rejects like ?: in initializers. */
422 #if DEFAULT_SIGNED_CHAR
423 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
425 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
429 static char *cpp_spec = CPP_SPEC;
430 static char *cpp_predefines = CPP_PREDEFINES;
431 static char *cc1_spec = CC1_SPEC;
432 static char *cc1plus_spec = CC1PLUS_SPEC;
433 static char *signed_char_spec = SIGNED_CHAR_SPEC;
434 static char *asm_spec = ASM_SPEC;
435 static char *asm_final_spec = ASM_FINAL_SPEC;
436 static char *link_spec = LINK_SPEC;
437 static char *lib_spec = LIB_SPEC;
438 static char *endfile_spec = ENDFILE_SPEC;
439 static char *startfile_spec = STARTFILE_SPEC;
440 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
442 /* This defines which switch letters take arguments. */
444 #ifndef SWITCH_TAKES_ARG
445 #define SWITCH_TAKES_ARG(CHAR) \
446 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
447 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
448 || (CHAR) == 'I' || (CHAR) == 'm' \
449 || (CHAR) == 'L' || (CHAR) == 'A')
452 /* This defines which multi-letter switches take arguments. */
454 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
455 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
456 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
457 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
458 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
459 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore"))
461 #ifndef WORD_SWITCH_TAKES_ARG
462 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
465 /* Record the mapping from file suffixes for compilation specs. */
469 char *suffix; /* Use this compiler for input files
470 whose names end in this suffix. */
472 char *spec[4]; /* To use this compiler, concatenate these
473 specs and pass to do_spec. */
476 /* Pointer to a vector of `struct compiler' that gives the spec for
477 compiling a file, based on its suffix.
478 A file that does not end in any of these suffixes will be passed
479 unchanged to the loader and nothing else will be done to it.
481 An entry containing two 0s is used to terminate the vector.
483 If multiple entries match a file, the last matching one is used. */
485 static struct compiler *compilers;
487 /* Number of entries in `compilers', not counting the null terminator. */
489 static int n_compilers;
491 /* The default list of file name suffixes and their compilation specs. */
493 static struct compiler default_compilers[] =
497 "cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
498 %{C:%{!E:%eGNU C does not support -C without using -E}}\
499 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d}\
500 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
501 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
502 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
503 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
504 %{traditional-cpp:-traditional}\
505 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
506 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
507 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
508 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a}\
509 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
510 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
512 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
513 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
514 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
515 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
516 %{!pipe:%g.s} %A\n }}}}"},
518 "%{E:cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
519 %{C:%{!E:%eGNU C does not support -C without using -E}}\
520 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d}\
521 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
522 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
523 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
524 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
525 %{traditional-cpp:-traditional}\
526 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
528 %{!E:%e-E required when input is from standard input}"},
529 {".m", "@objective-c"},
531 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
532 %{C:%{!E:%eGNU C does not support -C without using -E}}\
533 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d}\
534 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
535 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
536 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
537 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
538 %{traditional-cpp:-traditional}\
539 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
540 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
541 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
542 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a}\
543 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
544 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
545 -lang-objc %{gen-decls} \
547 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
548 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
549 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
550 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
551 %{!pipe:%g.s} %A\n }}}}"},
554 "%{!E:%eCompilation of header file requested} \
555 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
556 %{C:%{!E:%eGNU C does not support -C without using -E}}\
557 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} \
558 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
559 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
560 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
561 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
562 %{traditional-cpp:-traditional}\
563 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
570 "cpp -lang-c++ %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
571 %{C:%{!E:%eGNU C++ does not support -C without using -E}}\
572 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} \
573 -undef -D__GNUC__=%v1 -D__GNUG__=%v1 -D__cplusplus -D__GNUC_MINOR__=%v2\
574 %{ansi:-trigraphs -$ -D__STRICT_ANSI__} %{!undef:%{!ansi:%p} %P}\
575 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
576 %{traditional-cpp:-traditional} %{trigraphs}\
577 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
578 %i %{!M:%{!MM:%{!E:%{!pipe:%g.ii}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
579 "%{!M:%{!MM:%{!E:cc1plus %{!pipe:%g.ii} %1 %2\
580 %{!Q:-quiet} -dumpbase %b.cc %{d*} %{m*} %{a}\
581 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
582 %{traditional} %{v:-version} %{pg:-p} %{p}\
583 %{f*} %{+e*} %{aux-info*}\
584 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
585 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}}|\n\
586 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
587 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
588 %{!pipe:%g.s} %A\n }}}}"},
589 {".i", "@cpp-output"},
591 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
592 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
593 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
595 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
596 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
597 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
598 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
599 %{!pipe:%g.s} %A\n }}}}"},
600 {".ii", "@c++-cpp-output"},
602 "%{!M:%{!MM:%{!E:cc1plus %i %1 %2 %{!Q:-quiet} %{d*} %{m*} %{a}\
603 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
604 %{traditional} %{v:-version} %{pg:-p} %{p}\
605 %{f*} %{+e*} %{aux-info*}\
606 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
607 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
608 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
609 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
610 %{!pipe:%g.s} %A\n }}}}"},
611 {".s", "@assembler"},
613 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
614 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
616 {".S", "@assembler-with-cpp"},
617 {"@assembler-with-cpp",
618 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
619 %{C:%{!E:%eGNU C does not support -C without using -E}}\
620 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{trigraphs} \
621 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
622 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
623 %{traditional-cpp:-traditional}\
624 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
625 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
626 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
627 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
628 %{!pipe:%g.s} %A\n }}}}"},
633 "%{!M:%{!MM:%{!E:gnat1 %{k8:-gnatk8} %{w:-gnatws} %{!Q:-quiet}\
634 -dumpbase %b.ada %{g*} %{O*} %{p} %{pg:-p} %{f*}\
636 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
637 %i %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
638 %{!S:%{!gnatc:%{!gnats:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
639 %{c:%W{o*}%{!o*:-o %w%b.o}}\
640 %{!c:-o %d%w%u.o} %{!pipe:%g.s} %A\n}}}}}} "},
641 /* Mark end of table */
645 /* Number of elements in default_compilers, not counting the terminator. */
647 static int n_default_compilers
648 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
650 /* Here is the spec for running the linker, after compiling all files. */
652 /* -u* was put back because both BSD and SysV seem to support it. */
653 /* %{static:} simply prevents an error message if the target machine
654 doesn't handle -static. */
655 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
656 scripts which exist in user specified directories, or in standard
658 #ifdef LINK_LIBGCC_SPECIAL_1
659 /* Have gcc do the search for libgcc.a, but generate -L options as usual. */
660 static char *link_command_spec = "\
662 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
663 %{r} %{s} %{t} %{u*} %{x} %{z}\
664 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
665 %{L*} %D %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
667 #ifdef LINK_LIBGCC_SPECIAL
668 /* Have gcc do the search for libgcc.a, and don't generate -L options. */
669 static char *link_command_spec = "\
671 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
672 %{r} %{s} %{t} %{u*} %{x} %{z}\
673 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
674 %{L*} %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
676 /* Use -L and have the linker do the search for -lgcc. */
677 static char *link_command_spec = "\
679 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
680 %{r} %{s} %{t} %{u*} %{x} %{z}\
681 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
682 %{L*} %D %{T*} %o %{!nostdlib:-lgcc %L -lgcc %{!A:%E}}\n }}}}}}";
686 /* A vector of options to give to the linker.
687 These options are accumulated by -Xlinker and -Wl,
688 and substituted into the linker command with %X. */
689 static int n_linker_options;
690 static char **linker_options;
692 /* A vector of options to give to the assembler.
693 These options are accumulated by -Wa,
694 and substituted into the assembler command with %X. */
695 static int n_assembler_options;
696 static char **assembler_options;
698 /* Define how to map long options into short ones. */
700 /* This structure describes one mapping. */
703 /* The long option's name. */
705 /* The equivalent short option. */
707 /* Argument info. A string of flag chars; NULL equals no options.
708 a => argument required.
709 o => argument optional.
710 j => join argument to equivalent, making one word.
711 * => allow other text after NAME as an argument. */
715 /* This is the table of mappings. Mappings are tried sequentially
716 for each option encountered; the first one that matches, wins. */
718 struct option_map option_map[] =
720 {"--profile-blocks", "-a", 0},
721 {"--target", "-b", "a"},
722 {"--compile", "-c", 0},
723 {"--dump", "-d", "a"},
724 {"--entry", "-e", 0},
725 {"--debug", "-g", "oj"},
726 {"--include", "-include", "a"},
727 {"--imacros", "-imacros", "a"},
728 {"--include-prefix", "-iprefix", "a"},
729 {"--include-directory-after", "-idirafter", "a"},
730 {"--include-with-prefix", "-iwithprefix", "a"},
731 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
732 {"--include-with-prefix-after", "-iwithprefix", "a"},
733 {"--machine-", "-m", "*j"},
734 {"--machine", "-m", "aj"},
735 {"--no-standard-includes", "-nostdinc", 0},
736 {"--no-standard-libraries", "-nostdlib", 0},
737 {"--no-precompiled-includes", "-noprecomp", 0},
738 {"--output", "-o", "a"},
739 {"--profile", "-p", 0},
740 {"--quiet", "-q", 0},
741 {"--silent", "-q", 0},
742 {"--force-link", "-u", "a"},
743 {"--verbose", "-v", 0},
744 {"--version", "-dumpversion", 0},
745 {"--no-warnings", "-w", 0},
746 {"--language", "-x", "a"},
748 {"--assert", "-A", "a"},
749 {"--prefix", "-B", "a"},
750 {"--comments", "-C", 0},
751 {"--define-macro", "-D", "a"},
752 {"--preprocess", "-E", 0},
753 {"--trace-includes", "-H", 0},
754 {"--include-directory", "-I", "a"},
755 {"--include-barrier", "-I-", 0},
756 {"--library-directory", "-L", "a"},
757 {"--dependencies", "-M", 0},
758 {"--user-dependencies", "-MM", 0},
759 {"--write-dependencies", "-MD", 0},
760 {"--write-user-dependencies", "-MMD", 0},
761 {"--optimize", "-O", "oj"},
762 {"--no-line-commands", "-P", 0},
763 {"--assemble", "-S", 0},
764 {"--undefine-macro", "-U", "a"},
765 {"--use-version", "-V", "a"},
766 {"--for-assembler", "-Wa", "a"},
767 {"--extra-warnings", "-W", 0},
768 {"--all-warnings", "-Wall", 0},
769 {"--warn-", "-W", "*j"},
770 {"--for-linker", "-Xlinker", "a"},
772 {"--ansi", "-ansi", 0},
773 {"--traditional", "-traditional", 0},
774 {"--traditional-cpp", "-traditional-cpp", 0},
775 {"--trigraphs", "-trigraphs", 0},
776 {"--pipe", "-pipe", 0},
777 {"--dumpbase", "-dumpbase", "a"},
778 {"--pedantic", "-pedantic", 0},
779 {"--pedantic-errors", "-pedantic-errors", 0},
780 {"--save-temps", "-save-temps", 0},
781 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
782 {"--print-file-name", "-print-file-name=", "aj"},
783 {"--print-prog-name", "-print-prog-name=", "aj"},
784 {"--static", "-static", 0},
785 {"--shared", "-shared", 0},
786 {"--symbolic", "-symbolic", 0},
790 /* Translate the options described by *ARGCP and *ARGVP.
791 Make a new vector and store it back in *ARGVP,
792 and store its length in *ARGVC. */
795 translate_options (argcp, argvp)
801 char **argv = *argvp;
802 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
806 newv[newindex++] = argv[i++];
810 /* Translate -- options. */
811 if (argv[i][0] == '-' && argv[i][1] == '-')
813 /* Find a mapping that applies to this option. */
814 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
816 int optlen = strlen (option_map[j].name);
817 int complen = strlen (argv[i]);
818 char *arginfo = option_map[j].arg_info;
822 if (complen > optlen)
824 if (!strncmp (argv[i], option_map[j].name, complen))
826 int extra = strlen (argv[i]) > optlen;
831 /* If the option has an argument, accept that. */
832 if (argv[i][optlen] == '=')
833 arg = argv[i] + optlen + 1;
834 /* If this mapping allows extra text at end of name,
835 accept that as "argument". */
836 else if (index (arginfo, '*') != 0)
837 arg = argv[i] + optlen;
838 /* Otherwise, extra text at end means mismatch.
839 Try other mappings. */
843 else if (index (arginfo, '*') != 0)
844 error ("Incomplete `%s' option", option_map[j].name);
846 /* Handle arguments. */
847 if (index (arginfo, 'o') != 0)
852 error ("Missing argument to `%s' option",
857 else if (index (arginfo, '*') != 0)
859 else if (index (arginfo, 'a') == 0)
862 error ("Extraneous argument to `%s' option",
867 /* Store the translation as one argv elt or as two. */
868 if (arg != 0 && index (arginfo, 'j') != 0)
869 newv[newindex++] = concat (option_map[j].equivalent,
873 newv[newindex++] = option_map[j].equivalent;
874 newv[newindex++] = arg;
877 newv[newindex++] = option_map[j].equivalent;
884 /* Handle old-fashioned options--just copy them through,
885 with their arguments. */
886 else if (argv[i][0] == '-')
888 char *p = argv[i] + 1;
892 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
893 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
894 else if (WORD_SWITCH_TAKES_ARG (p))
895 nskip += WORD_SWITCH_TAKES_ARG (p);
896 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
899 else if (! strcmp (p, "Xlinker"))
904 newv[newindex++] = argv[i++];
909 /* Ordinary operands, or +e options. */
910 newv[newindex++] = argv[i++];
919 /* Read compilation specs from a file named FILENAME,
920 replacing the default ones.
922 A suffix which starts with `*' is a definition for
923 one of the machine-specific sub-specs. The "suffix" should be
924 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
925 The corresponding spec is stored in asm_spec, etc.,
926 rather than in the `compilers' vector.
928 Anything invalid in the file is a fatal error. */
931 read_specs (filename)
940 fprintf (stderr, "Reading specs from %s\n", filename);
942 /* Open and stat the file. */
943 desc = open (filename, 0, 0);
945 pfatal_with_name (filename);
946 if (stat (filename, &statbuf) < 0)
947 pfatal_with_name (filename);
949 /* Read contents of file into BUFFER. */
950 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
951 read (desc, buffer, (unsigned) statbuf.st_size);
952 buffer[statbuf.st_size] = 0;
955 /* Scan BUFFER for specs, putting them in the vector. */
961 char *in, *out, *p1, *p2;
963 /* Advance P in BUFFER to the next nonblank nocomment line. */
964 p = skip_whitespace (p);
968 /* Find the colon that should end the suffix. */
970 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
971 /* The colon shouldn't be missing. */
973 fatal ("specs file malformed after %d characters", p1 - buffer);
974 /* Skip back over trailing whitespace. */
976 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
977 /* Copy the suffix to a string. */
978 suffix = save_string (p, p2 - p);
979 /* Find the next line. */
980 p = skip_whitespace (p1 + 1);
982 fatal ("specs file malformed after %d characters", p - buffer);
984 /* Find next blank line. */
985 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
986 /* Specs end at the blank line and do not include the newline. */
987 spec = save_string (p, p1 - p);
990 /* Delete backslash-newline sequences from the spec. */
995 if (in[0] == '\\' && in[1] == '\n')
997 else if (in[0] == '#')
999 while (*in && *in != '\n') in++;
1006 if (suffix[0] == '*')
1008 if (! strcmp (suffix, "*link_command"))
1009 link_command_spec = spec;
1011 set_spec (suffix + 1, spec);
1015 /* Add this pair to the vector. */
1017 = ((struct compiler *)
1018 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1019 compilers[n_compilers].suffix = suffix;
1020 bzero (compilers[n_compilers].spec,
1021 sizeof compilers[n_compilers].spec);
1022 compilers[n_compilers].spec[0] = spec;
1024 bzero (&compilers[n_compilers], sizeof compilers[n_compilers]);
1028 link_command_spec = spec;
1031 if (link_command_spec == 0)
1032 fatal ("spec file has no spec for linking");
1041 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1042 be considered whitespace. */
1043 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1045 else if (*p == '\n' || *p == ' ' || *p == '\t')
1049 while (*p != '\n') p++;
1059 /* Structure to keep track of the specs that have been defined so far. These
1060 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1064 char *name; /* Name of the spec. */
1065 char *spec; /* The spec itself. */
1066 struct spec_list *next; /* Next spec in linked list. */
1069 /* List of specs that have been defined so far. */
1071 static struct spec_list *specs = (struct spec_list *) 0;
1073 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1074 removed; If the spec starts with a + then SPEC is added to the end of the
1078 set_spec (name, spec)
1082 struct spec_list *sl;
1085 /* See if the spec already exists */
1086 for (sl = specs; sl; sl = sl->next)
1087 if (strcmp (sl->name, name) == 0)
1092 /* Not found - make it */
1093 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1094 sl->name = save_string (name, strlen (name));
1095 sl->spec = save_string ("", 0);
1100 old_spec = sl->spec;
1101 if (name && spec[0] == '+' && isspace (spec[1]))
1102 sl->spec = concat (old_spec, spec + 1, "");
1104 sl->spec = save_string (spec, strlen (spec));
1106 if (! strcmp (name, "asm"))
1107 asm_spec = sl->spec;
1108 else if (! strcmp (name, "asm_final"))
1109 asm_final_spec = sl->spec;
1110 else if (! strcmp (name, "cc1"))
1111 cc1_spec = sl->spec;
1112 else if (! strcmp (name, "cc1plus"))
1113 cc1plus_spec = sl->spec;
1114 else if (! strcmp (name, "cpp"))
1115 cpp_spec = sl->spec;
1116 else if (! strcmp (name, "endfile"))
1117 endfile_spec = sl->spec;
1118 else if (! strcmp (name, "lib"))
1119 lib_spec = sl->spec;
1120 else if (! strcmp (name, "link"))
1121 link_spec = sl->spec;
1122 else if (! strcmp (name, "predefines"))
1123 cpp_predefines = sl->spec;
1124 else if (! strcmp (name, "signed_char"))
1125 signed_char_spec = sl->spec;
1126 else if (! strcmp (name, "startfile"))
1127 startfile_spec = sl->spec;
1128 else if (! strcmp (name, "switches_need_spaces"))
1129 switches_need_spaces = sl->spec;
1130 else if (! strcmp (name, "cross_compile"))
1131 cross_compile = atoi (sl->spec);
1132 /* Free the old spec */
1137 /* Accumulate a command (program name and args), and run it. */
1139 /* Vector of pointers to arguments in the current line of specifications. */
1141 static char **argbuf;
1143 /* Number of elements allocated in argbuf. */
1145 static int argbuf_length;
1147 /* Number of elements in argbuf currently in use (containing args). */
1149 static int argbuf_index;
1151 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1152 temp file. Used only if MKTEMP_EACH_FILE. */
1154 static struct temp_name {
1155 char *suffix; /* suffix associated with the code. */
1156 int length; /* strlen (suffix). */
1157 int unique; /* Indicates whether %g or %u/%U was used. */
1158 char *filename; /* associated filename. */
1159 int filename_length; /* strlen (filename). */
1160 struct temp_name *next;
1163 /* Number of commands executed so far. */
1165 static int execution_count;
1167 /* Number of commands that exited with a signal. */
1169 static int signal_count;
1171 /* Name with which this program was invoked. */
1173 static char *programname;
1175 /* Structures to keep track of prefixes to try when looking for files. */
1179 char *prefix; /* String to prepend to the path. */
1180 struct prefix_list *next; /* Next in linked list. */
1181 int require_machine_suffix; /* Don't use without machine_suffix. */
1182 /* 2 means try both machine_suffix and just_machine_suffix. */
1183 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1188 struct prefix_list *plist; /* List of prefixes to try */
1189 int max_len; /* Max length of a prefix in PLIST */
1190 char *name; /* Name of this list (used in config stuff) */
1193 /* List of prefixes to try when looking for executables. */
1195 static struct path_prefix exec_prefix = { 0, 0, "exec" };
1197 /* List of prefixes to try when looking for startup (crt0) files. */
1199 static struct path_prefix startfile_prefix = { 0, 0, "startfile" };
1201 /* List of prefixes to try when looking for include files. */
1203 static struct path_prefix include_prefix = { 0, 0, "include" };
1205 /* Suffix to attach to directories searched for commands.
1206 This looks like `MACHINE/VERSION/'. */
1208 static char *machine_suffix = 0;
1210 /* Suffix to attach to directories searched for commands.
1211 This is just `MACHINE/'. */
1213 static char *just_machine_suffix = 0;
1215 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1217 static char *gcc_exec_prefix;
1219 /* Default prefixes to attach to command names. */
1221 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1222 #undef MD_EXEC_PREFIX
1223 #undef MD_STARTFILE_PREFIX
1224 #undef MD_STARTFILE_PREFIX_1
1227 #ifndef STANDARD_EXEC_PREFIX
1228 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1229 #endif /* !defined STANDARD_EXEC_PREFIX */
1231 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1232 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1233 #ifdef MD_EXEC_PREFIX
1234 static char *md_exec_prefix = MD_EXEC_PREFIX;
1237 #ifndef STANDARD_STARTFILE_PREFIX
1238 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1239 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1241 #ifdef MD_STARTFILE_PREFIX
1242 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1244 #ifdef MD_STARTFILE_PREFIX_1
1245 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1247 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1248 static char *standard_startfile_prefix_1 = "/lib/";
1249 static char *standard_startfile_prefix_2 = "/usr/lib/";
1251 #ifndef TOOLDIR_BASE_PREFIX
1252 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1254 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1255 static char *tooldir_prefix;
1257 /* Clear out the vector of arguments (after a command is executed). */
1265 /* Add one argument to the vector at the end.
1266 This is done when a space is seen or at the end of the line.
1267 If DELETE_ALWAYS is nonzero, the arg is a filename
1268 and the file should be deleted eventually.
1269 If DELETE_FAILURE is nonzero, the arg is a filename
1270 and the file should be deleted if this compilation fails. */
1273 store_arg (arg, delete_always, delete_failure)
1275 int delete_always, delete_failure;
1277 if (argbuf_index + 1 == argbuf_length)
1279 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1282 argbuf[argbuf_index++] = arg;
1283 argbuf[argbuf_index] = 0;
1285 if (delete_always || delete_failure)
1286 record_temp_file (arg, delete_always, delete_failure);
1289 /* Record the names of temporary files we tell compilers to write,
1290 and delete them at the end of the run. */
1292 /* This is the common prefix we use to make temp file names.
1293 It is chosen once for each run of this program.
1294 It is substituted into a spec by %g.
1295 Thus, all temp file names contain this prefix.
1296 In practice, all temp file names start with this prefix.
1298 This prefix comes from the envvar TMPDIR if it is defined;
1299 otherwise, from the P_tmpdir macro if that is defined;
1300 otherwise, in /usr/tmp or /tmp. */
1302 static char *temp_filename;
1304 /* Length of the prefix. */
1306 static int temp_filename_length;
1308 /* Define the list of temporary files to delete. */
1313 struct temp_file *next;
1316 /* Queue of files to delete on success or failure of compilation. */
1317 static struct temp_file *always_delete_queue;
1318 /* Queue of files to delete on failure of compilation. */
1319 static struct temp_file *failure_delete_queue;
1321 /* Record FILENAME as a file to be deleted automatically.
1322 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1323 otherwise delete it in any case.
1324 FAIL_DELETE nonzero means delete it if a compilation step fails;
1325 otherwise delete it in any case. */
1328 record_temp_file (filename, always_delete, fail_delete)
1333 register char *name;
1334 name = xmalloc (strlen (filename) + 1);
1335 strcpy (name, filename);
1339 register struct temp_file *temp;
1340 for (temp = always_delete_queue; temp; temp = temp->next)
1341 if (! strcmp (name, temp->name))
1343 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1344 temp->next = always_delete_queue;
1346 always_delete_queue = temp;
1352 register struct temp_file *temp;
1353 for (temp = failure_delete_queue; temp; temp = temp->next)
1354 if (! strcmp (name, temp->name))
1356 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1357 temp->next = failure_delete_queue;
1359 failure_delete_queue = temp;
1364 /* Delete all the temporary files whose names we previously recorded. */
1367 delete_temp_files ()
1369 register struct temp_file *temp;
1371 for (temp = always_delete_queue; temp; temp = temp->next)
1375 printf ("Delete %s? (y or n) ", temp->name);
1379 while (getchar () != '\n') ;
1380 if (i == 'y' || i == 'Y')
1384 if (stat (temp->name, &st) >= 0)
1386 /* Delete only ordinary files. */
1387 if (S_ISREG (st.st_mode))
1388 if (unlink (temp->name) < 0)
1390 perror_with_name (temp->name);
1395 always_delete_queue = 0;
1398 /* Delete all the files to be deleted on error. */
1401 delete_failure_queue ()
1403 register struct temp_file *temp;
1405 for (temp = failure_delete_queue; temp; temp = temp->next)
1409 printf ("Delete %s? (y or n) ", temp->name);
1413 while (getchar () != '\n') ;
1414 if (i == 'y' || i == 'Y')
1417 if (unlink (temp->name) < 0)
1419 perror_with_name (temp->name);
1425 clear_failure_queue ()
1427 failure_delete_queue = 0;
1430 /* Compute a string to use as the base of all temporary file names.
1431 It is substituted for %g. */
1434 choose_temp_base_try (try, base)
1441 else if (try == (char *)0)
1443 else if (access (try, R_OK | W_OK) != 0)
1456 base = choose_temp_base_try (getenv ("TMPDIR"), base);
1457 base = choose_temp_base_try (getenv ("TMP"), base);
1458 base = choose_temp_base_try (getenv ("TEMP"), base);
1461 base = choose_temp_base_try (P_tmpdir, base);
1464 base = choose_temp_base_try ("/usr/tmp", base);
1465 base = choose_temp_base_try ("/tmp", base);
1467 /* If all else fails, use the current directory! */
1468 if (base == (char *)0)
1471 len = strlen (base);
1472 temp_filename = xmalloc (len + sizeof("/ccXXXXXX") + 1);
1473 strcpy (temp_filename, base);
1474 if (len > 0 && temp_filename[len-1] != '/')
1475 temp_filename[len++] = '/';
1476 strcpy (temp_filename + len, "ccXXXXXX");
1478 mktemp (temp_filename);
1479 temp_filename_length = strlen (temp_filename);
1480 if (temp_filename_length == 0)
1485 /* Routine to add variables to the environment. We do this to pass
1486 the pathname of the gcc driver, and the directories search to the
1487 collect2 program, which is being run as ld. This way, we can be
1488 sure of executing the right compiler when collect2 wants to build
1489 constructors and destructors. Since the environment variables we
1490 use come from an obstack, we don't have to worry about allocating
1499 #ifndef VMS /* nor about VMS */
1501 extern char **environ;
1502 char **old_environ = environ;
1506 int str_len = strlen (str);
1510 while ((ch = *p++) != '\0' && ch != '=')
1516 /* Search for replacing an existing environment variable, and
1517 count the number of total environment variables. */
1518 for (envp = old_environ; *envp; envp++)
1521 if (!strncmp (str, *envp, name_len))
1528 /* Add a new environment variable */
1529 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1531 bcopy (old_environ, environ+1, sizeof (char *) * (num_envs+1));
1536 #endif /* HAVE_PUTENV */
1539 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1542 putenv_from_prefixes (paths, env_var)
1543 struct path_prefix *paths;
1546 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1548 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1549 int first_time = TRUE;
1550 struct prefix_list *pprefix;
1552 obstack_grow (&collect_obstack, env_var, strlen (env_var));
1554 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1556 int len = strlen (pprefix->prefix);
1559 && is_directory (pprefix->prefix, machine_suffix, 0))
1562 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1565 obstack_grow (&collect_obstack, pprefix->prefix, len);
1566 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1569 if (just_machine_suffix
1570 && pprefix->require_machine_suffix == 2
1571 && is_directory (pprefix->prefix, just_machine_suffix, 0))
1574 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1577 obstack_grow (&collect_obstack, pprefix->prefix, len);
1578 obstack_grow (&collect_obstack, just_machine_suffix,
1582 if (!pprefix->require_machine_suffix)
1585 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1588 obstack_grow (&collect_obstack, pprefix->prefix, len);
1591 obstack_1grow (&collect_obstack, '\0');
1592 putenv (obstack_finish (&collect_obstack));
1596 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1597 access to check permissions.
1598 Return 0 if not found, otherwise return its name, allocated with malloc. */
1601 find_a_file (pprefix, name, mode)
1602 struct path_prefix *pprefix;
1607 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1608 struct prefix_list *pl;
1609 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1612 len += strlen (machine_suffix);
1614 temp = xmalloc (len);
1616 /* Determine the filename to execute (special case for absolute paths). */
1620 if (access (name, mode))
1622 strcpy (temp, name);
1627 for (pl = pprefix->plist; pl; pl = pl->next)
1631 strcpy (temp, pl->prefix);
1632 strcat (temp, machine_suffix);
1633 strcat (temp, name);
1634 if (access (temp, mode) == 0)
1636 if (pl->used_flag_ptr != 0)
1637 *pl->used_flag_ptr = 1;
1640 /* Some systems have a suffix for executable files.
1641 So try appending that. */
1642 if (file_suffix[0] != 0)
1644 strcat (temp, file_suffix);
1645 if (access (temp, mode) == 0)
1647 if (pl->used_flag_ptr != 0)
1648 *pl->used_flag_ptr = 1;
1653 /* Certain prefixes are tried with just the machine type,
1654 not the version. This is used for finding as, ld, etc. */
1655 if (just_machine_suffix && pl->require_machine_suffix == 2)
1657 strcpy (temp, pl->prefix);
1658 strcat (temp, just_machine_suffix);
1659 strcat (temp, name);
1660 if (access (temp, mode) == 0)
1662 if (pl->used_flag_ptr != 0)
1663 *pl->used_flag_ptr = 1;
1666 /* Some systems have a suffix for executable files.
1667 So try appending that. */
1668 if (file_suffix[0] != 0)
1670 strcat (temp, file_suffix);
1671 if (access (temp, mode) == 0)
1673 if (pl->used_flag_ptr != 0)
1674 *pl->used_flag_ptr = 1;
1679 /* Certain prefixes can't be used without the machine suffix
1680 when the machine or version is explicitly specified. */
1681 if (!pl->require_machine_suffix)
1683 strcpy (temp, pl->prefix);
1684 strcat (temp, name);
1685 if (access (temp, mode) == 0)
1687 if (pl->used_flag_ptr != 0)
1688 *pl->used_flag_ptr = 1;
1691 /* Some systems have a suffix for executable files.
1692 So try appending that. */
1693 if (file_suffix[0] != 0)
1695 strcat (temp, file_suffix);
1696 if (access (temp, mode) == 0)
1698 if (pl->used_flag_ptr != 0)
1699 *pl->used_flag_ptr = 1;
1710 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1711 at the start of the list, otherwise it goes at the end.
1713 If WARN is nonzero, we will warn if no file is found
1714 through this prefix. WARN should point to an int
1715 which will be set to 1 if this entry is used.
1717 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1718 the complete value of machine_suffix.
1719 2 means try both machine_suffix and just_machine_suffix. */
1722 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1723 struct path_prefix *pprefix;
1726 int require_machine_suffix;
1729 struct prefix_list *pl, **prev;
1732 if (!first && pprefix->plist)
1734 for (pl = pprefix->plist; pl->next; pl = pl->next)
1739 prev = &pprefix->plist;
1741 /* Keep track of the longest prefix */
1743 len = strlen (prefix);
1744 if (len > pprefix->max_len)
1745 pprefix->max_len = len;
1747 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1748 pl->prefix = save_string (prefix, len);
1749 pl->require_machine_suffix = require_machine_suffix;
1750 pl->used_flag_ptr = warn;
1757 pl->next = (struct prefix_list *) 0;
1761 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1764 unused_prefix_warnings (pprefix)
1765 struct path_prefix *pprefix;
1767 struct prefix_list *pl = pprefix->plist;
1771 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1773 error ("file path prefix `%s' never used",
1775 /* Prevent duplicate warnings. */
1776 *pl->used_flag_ptr = 1;
1782 /* Get rid of all prefixes built up so far in *PLISTP. */
1785 free_path_prefix (pprefix)
1786 struct path_prefix *pprefix;
1788 struct prefix_list *pl = pprefix->plist;
1789 struct prefix_list *temp;
1795 free (temp->prefix);
1796 free ((char *) temp);
1798 pprefix->plist = (struct prefix_list *) 0;
1801 /* stdin file number. */
1802 #define STDIN_FILE_NO 0
1804 /* stdout file number. */
1805 #define STDOUT_FILE_NO 1
1807 /* value of `pipe': port index for reading. */
1810 /* value of `pipe': port index for writing. */
1811 #define WRITE_PORT 1
1813 /* Pipe waiting from last process, to be used as input for the next one.
1814 Value is STDIN_FILE_NO if no pipe is waiting
1815 (i.e. the next command is the first of a group). */
1817 static int last_pipe_input;
1819 /* Fork one piped subcommand. FUNC is the system call to use
1820 (either execv or execvp). ARGV is the arg vector to use.
1821 NOT_LAST is nonzero if this is not the last subcommand
1822 (i.e. its output should be piped to the next one.) */
1827 /* Declare these to avoid compilation error. They won't be called. */
1828 int execv(const char *a, const char **b){}
1829 int execvp(const char *a, const char **b){}
1832 pexecute (search_flag, program, argv, not_last)
1840 int i, el = search_flag ? 0 : 4;
1842 scmd = (char *)malloc (strlen (program) + strlen (temp_filename) + 6 + el);
1843 rf = scmd + strlen(program) + 2 + el;
1844 sprintf (scmd, "%s%s @%s.gp", program,
1845 (search_flag ? "" : ".exe"), temp_filename);
1846 argfile = fopen (rf, "w");
1848 pfatal_with_name (rf);
1850 for (i=1; argv[i]; i++)
1853 for (cp = argv[i]; *cp; cp++)
1855 if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp))
1856 fputc ('\\', argfile);
1857 fputc (*cp, argfile);
1859 fputc ('\n', argfile);
1869 perror_exec (program);
1870 return MIN_FATAL_STATUS << 8;
1876 #else /* not __MSDOS__ */
1879 pexecute (search_flag, program, argv, not_last)
1885 int (*func)() = (search_flag ? execv : execvp);
1888 int input_desc = last_pipe_input;
1889 int output_desc = STDOUT_FILE_NO;
1890 int retries, sleep_interval;
1892 /* If this isn't the last process, make a pipe for its output,
1893 and record it as waiting to be the input to the next process. */
1897 if (pipe (pdes) < 0)
1898 pfatal_with_name ("pipe");
1899 output_desc = pdes[WRITE_PORT];
1900 last_pipe_input = pdes[READ_PORT];
1903 last_pipe_input = STDIN_FILE_NO;
1905 /* Fork a subprocess; wait and retry if it fails. */
1907 for (retries = 0; retries < 4; retries++)
1912 sleep (sleep_interval);
1913 sleep_interval *= 2;
1920 pfatal_with_name ("fork");
1922 pfatal_with_name ("vfork");
1928 /* Move the input and output pipes into place, if nec. */
1929 if (input_desc != STDIN_FILE_NO)
1931 close (STDIN_FILE_NO);
1935 if (output_desc != STDOUT_FILE_NO)
1937 close (STDOUT_FILE_NO);
1939 close (output_desc);
1942 /* Close the parent's descs that aren't wanted here. */
1943 if (last_pipe_input != STDIN_FILE_NO)
1944 close (last_pipe_input);
1946 /* Exec the program. */
1947 (*func) (program, argv);
1948 perror_exec (program);
1954 /* In the parent, after forking.
1955 Close the descriptors that we made for this child. */
1956 if (input_desc != STDIN_FILE_NO)
1958 if (output_desc != STDOUT_FILE_NO)
1959 close (output_desc);
1961 /* Return child's process number. */
1966 #endif /* not __MSDOS__ */
1970 pexecute (search_flag, program, argv, not_last)
1976 return (search_flag ? spawnv : spawnvp) (1, program, argv);
1978 #endif /* not OS2 */
1980 /* Execute the command specified by the arguments on the current line of spec.
1981 When using pipes, this includes several piped-together commands
1982 with `|' between them.
1984 Return 0 if successful, -1 if failed. */
1990 int n_commands; /* # of command. */
1994 char *prog; /* program name. */
1995 char **argv; /* vector of args. */
1996 int pid; /* pid of process for this command. */
1999 struct command *commands; /* each command buffer with above info. */
2001 /* Count # of piped commands. */
2002 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2003 if (strcmp (argbuf[i], "|") == 0)
2006 /* Get storage for each command. */
2008 = (struct command *) alloca (n_commands * sizeof (struct command));
2010 /* Split argbuf into its separate piped processes,
2011 and record info about each one.
2012 Also search for the programs that are to be run. */
2014 commands[0].prog = argbuf[0]; /* first command. */
2015 commands[0].argv = &argbuf[0];
2016 string = find_a_file (&exec_prefix, commands[0].prog, X_OK);
2018 commands[0].argv[0] = string;
2020 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2021 if (strcmp (argbuf[i], "|") == 0)
2022 { /* each command. */
2024 fatal ("-pipe not supported under MS-DOS");
2026 argbuf[i] = 0; /* termination of command args. */
2027 commands[n_commands].prog = argbuf[i + 1];
2028 commands[n_commands].argv = &argbuf[i + 1];
2029 string = find_a_file (&exec_prefix, commands[n_commands].prog, X_OK);
2031 commands[n_commands].argv[0] = string;
2035 argbuf[argbuf_index] = 0;
2037 /* If -v, print what we are about to do, and maybe query. */
2041 /* Print each piped command as a separate line. */
2042 for (i = 0; i < n_commands ; i++)
2046 for (j = commands[i].argv; *j; j++)
2047 fprintf (stderr, " %s", *j);
2049 /* Print a pipe symbol after all but the last command. */
2050 if (i + 1 != n_commands)
2051 fprintf (stderr, " |");
2052 fprintf (stderr, "\n");
2056 fprintf (stderr, "\nGo ahead? (y or n) ");
2060 while (getchar () != '\n') ;
2061 if (i != 'y' && i != 'Y')
2066 /* Run each piped subprocess. */
2068 last_pipe_input = STDIN_FILE_NO;
2069 for (i = 0; i < n_commands; i++)
2071 char *string = commands[i].argv[0];
2073 commands[i].pid = pexecute (string != commands[i].prog,
2074 string, commands[i].argv,
2075 i + 1 < n_commands);
2077 if (string != commands[i].prog)
2083 /* Wait for all the subprocesses to finish.
2084 We don't care what order they finish in;
2085 we know that N_COMMANDS waits will get them all. */
2090 for (i = 0; i < n_commands; i++)
2094 char *prog = "unknown";
2097 status = pid = commands[i].pid;
2099 pid = wait (&status);
2107 for (j = 0; j < n_commands; j++)
2108 if (commands[j].pid == pid)
2109 prog = commands[j].prog;
2111 if ((status & 0x7F) != 0)
2113 fatal ("Internal compiler error: program %s got fatal signal %d",
2114 prog, (status & 0x7F));
2117 if (((status & 0xFF00) >> 8) >= MIN_FATAL_STATUS)
2125 /* Find all the switches given to us
2126 and make a vector describing them.
2127 The elements of the vector are strings, one per switch given.
2128 If a switch uses following arguments, then the `part1' field
2129 is the switch itself and the `args' field
2130 is a null-terminated vector containing the following arguments.
2131 The `live_cond' field is 1 if the switch is true in a conditional spec,
2132 -1 if false (overridden by a later switch), and is initialized to zero.
2133 The `valid' field is nonzero if any spec has looked at this switch;
2134 if it remains zero at the end of the run, it must be meaningless. */
2144 static struct switchstr *switches;
2146 static int n_switches;
2154 /* Also a vector of input files specified. */
2156 static struct infile *infiles;
2158 static int n_infiles;
2160 /* And a vector of corresponding output files is made up later. */
2162 static char **outfiles;
2164 /* Create the vector `switches' and its contents.
2165 Store its length in `n_switches'. */
2168 process_command (argc, argv)
2174 char *spec_lang = 0;
2175 int last_language_n_infiles;
2177 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2182 /* Figure compiler version from version string. */
2184 compiler_version = save_string (version_string, strlen (version_string));
2185 for (temp = compiler_version; *temp; ++temp)
2194 /* Set up the default search paths. */
2196 if (gcc_exec_prefix)
2198 add_prefix (&exec_prefix, gcc_exec_prefix, 0, 0, NULL_PTR);
2199 add_prefix (&startfile_prefix, gcc_exec_prefix, 0, 0, NULL_PTR);
2202 /* COMPILER_PATH and LIBRARY_PATH have values
2203 that are lists of directory names with colons. */
2205 temp = getenv ("COMPILER_PATH");
2208 char *startp, *endp;
2209 char *nstore = (char *) alloca (strlen (temp) + 3);
2211 startp = endp = temp;
2214 if (*endp == PATH_SEPARATOR || *endp == 0)
2216 strncpy (nstore, startp, endp-startp);
2219 strcpy (nstore, "./");
2221 else if (endp[-1] != '/')
2223 nstore[endp-startp] = '/';
2224 nstore[endp-startp+1] = 0;
2227 nstore[endp-startp] = 0;
2228 add_prefix (&exec_prefix, nstore, 0, 0, NULL_PTR);
2231 endp = startp = endp + 1;
2238 temp = getenv ("LIBRARY_PATH");
2241 char *startp, *endp;
2242 char *nstore = (char *) alloca (strlen (temp) + 3);
2244 startp = endp = temp;
2247 if (*endp == PATH_SEPARATOR || *endp == 0)
2249 strncpy (nstore, startp, endp-startp);
2252 strcpy (nstore, "./");
2254 else if (endp[-1] != '/')
2256 nstore[endp-startp] = '/';
2257 nstore[endp-startp+1] = 0;
2260 nstore[endp-startp] = 0;
2261 add_prefix (&startfile_prefix, nstore, 0, 0, NULL_PTR);
2264 endp = startp = endp + 1;
2271 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2272 temp = getenv ("LPATH");
2275 char *startp, *endp;
2276 char *nstore = (char *) alloca (strlen (temp) + 3);
2278 startp = endp = temp;
2281 if (*endp == PATH_SEPARATOR || *endp == 0)
2283 strncpy (nstore, startp, endp-startp);
2286 strcpy (nstore, "./");
2288 else if (endp[-1] != '/')
2290 nstore[endp-startp] = '/';
2291 nstore[endp-startp+1] = 0;
2294 nstore[endp-startp] = 0;
2295 add_prefix (&startfile_prefix, nstore, 0, 0, NULL_PTR);
2298 endp = startp = endp + 1;
2305 /* Convert new-style -- options to old-style. */
2306 translate_options (&argc, &argv);
2308 /* Scan argv twice. Here, the first time, just count how many switches
2309 there will be in their vector, and how many input files in theirs.
2310 Here we also parse the switches that cc itself uses (e.g. -v). */
2312 for (i = 1; i < argc; i++)
2314 if (! strcmp (argv[i], "-dumpspecs"))
2316 printf ("*asm:\n%s\n\n", asm_spec);
2317 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2318 printf ("*cpp:\n%s\n\n", cpp_spec);
2319 printf ("*cc1:\n%s\n\n", cc1_spec);
2320 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2321 printf ("*endfile:\n%s\n\n", endfile_spec);
2322 printf ("*link:\n%s\n\n", link_spec);
2323 printf ("*lib:\n%s\n\n", lib_spec);
2324 printf ("*startfile:\n%s\n\n", startfile_spec);
2325 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2326 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2327 printf ("*predefines:\n%s\n\n", cpp_predefines);
2328 printf ("*cross_compile:\n%d\n\n", cross_compile);
2332 else if (! strcmp (argv[i], "-dumpversion"))
2334 printf ("%s\n", version_string);
2337 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2338 print_file_name = "libgcc.a";
2339 else if (! strncmp (argv[i], "-print-file-name=", 17))
2340 print_file_name = argv[i] + 17;
2341 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2342 print_prog_name = argv[i] + 17;
2343 else if (! strcmp (argv[i], "-Xlinker"))
2345 /* Pass the argument of this option to the linker when we link. */
2348 fatal ("argument to `-Xlinker' is missing");
2351 if (!linker_options)
2353 = (char **) xmalloc (n_linker_options * sizeof (char **));
2356 = (char **) xrealloc (linker_options,
2357 n_linker_options * sizeof (char **));
2359 linker_options[n_linker_options - 1] = argv[++i];
2361 else if (! strncmp (argv[i], "-Wl,", 4))
2364 /* Pass the rest of this option to the linker when we link. */
2367 if (!linker_options)
2369 = (char **) xmalloc (n_linker_options * sizeof (char **));
2372 = (char **) xrealloc (linker_options,
2373 n_linker_options * sizeof (char **));
2375 /* Split the argument at commas. */
2377 for (j = 4; argv[i][j]; j++)
2378 if (argv[i][j] == ',')
2380 linker_options[n_linker_options - 1]
2381 = save_string (argv[i] + prev, j - prev);
2384 = (char **) xrealloc (linker_options,
2385 n_linker_options * sizeof (char **));
2388 /* Record the part after the last comma. */
2389 linker_options[n_linker_options - 1] = argv[i] + prev;
2391 else if (! strncmp (argv[i], "-Wa,", 4))
2394 /* Pass the rest of this option to the assembler. */
2396 n_assembler_options++;
2397 if (!assembler_options)
2399 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2402 = (char **) xrealloc (assembler_options,
2403 n_assembler_options * sizeof (char **));
2405 /* Split the argument at commas. */
2407 for (j = 4; argv[i][j]; j++)
2408 if (argv[i][j] == ',')
2410 assembler_options[n_assembler_options - 1]
2411 = save_string (argv[i] + prev, j - prev);
2412 n_assembler_options++;
2414 = (char **) xrealloc (assembler_options,
2415 n_assembler_options * sizeof (char **));
2418 /* Record the part after the last comma. */
2419 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2421 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2422 /* The +e options to the C++ front-end. */
2424 else if (argv[i][0] == '-' && argv[i][1] != 0 && argv[i][1] != 'l')
2426 register char *p = &argv[i][1];
2427 register int c = *p;
2432 if (p[1] == 0 && i + 1 == argc)
2433 fatal ("argument to `-b' is missing");
2435 spec_machine = argv[++i];
2437 spec_machine = p + 1;
2442 int *temp = (int *) xmalloc (sizeof (int));
2444 if (p[1] == 0 && i + 1 == argc)
2445 fatal ("argument to `-B' is missing");
2450 add_prefix (&exec_prefix, value, 1, 0, temp);
2451 add_prefix (&startfile_prefix, value, 1, 0, temp);
2452 add_prefix (&include_prefix, concat (value, "include", ""),
2455 /* As a kludge, if the arg is "[foo/]stageN/", just add
2456 "include" to the include prefix. */
2458 int len = strlen (value);
2459 if ((len == 7 || (len > 7 && value[len - 8] == '/'))
2460 && strncmp (value + len - 7, "stage", 5) == 0
2461 && isdigit (value[len - 2])
2462 && value[len - 1] == '/')
2463 add_prefix (&include_prefix, "include", 1, 0, 0);
2468 case 'v': /* Print our subcommands and print versions. */
2470 /* If they do anything other than exactly `-v', don't set
2471 verbose_flag; rather, continue on to give the error. */
2478 if (p[1] == 0 && i + 1 == argc)
2479 fatal ("argument to `-V' is missing");
2481 spec_version = argv[++i];
2483 spec_version = p + 1;
2484 compiler_version = spec_version;
2488 if (!strcmp (p, "save-temps"))
2490 save_temps_flag = 1;
2497 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2498 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2499 else if (WORD_SWITCH_TAKES_ARG (p))
2500 i += WORD_SWITCH_TAKES_ARG (p);
2507 /* Set up the search paths before we go looking for config files. */
2509 /* These come before the md prefixes so that we will find gcc's subcommands
2510 (such as cpp) rather than those of the host system. */
2511 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2512 as well as trying the machine and the version. */
2513 add_prefix (&exec_prefix, standard_exec_prefix, 0, 2, NULL_PTR);
2514 add_prefix (&exec_prefix, standard_exec_prefix_1, 0, 2, NULL_PTR);
2516 add_prefix (&startfile_prefix, standard_exec_prefix, 0, 1, NULL_PTR);
2517 add_prefix (&startfile_prefix, standard_exec_prefix_1, 0, 1, NULL_PTR);
2519 tooldir_prefix = concat (tooldir_base_prefix, spec_machine, "/");
2521 /* If tooldir is relative, base it on exec_prefix. A relative
2522 tooldir lets us move the installed tree as a unit.
2524 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2525 directories, so that we can search both the user specified directory
2526 and the standard place. */
2528 if (*tooldir_prefix != '/')
2530 if (gcc_exec_prefix)
2532 char *gcc_exec_tooldir_prefix
2533 = concat (concat (gcc_exec_prefix, spec_machine, "/"),
2534 concat (spec_version, "/", tooldir_prefix),
2537 add_prefix (&exec_prefix, concat (gcc_exec_tooldir_prefix, "bin", "/"),
2539 add_prefix (&startfile_prefix, concat (gcc_exec_tooldir_prefix, "lib", "/"),
2543 tooldir_prefix = concat (concat (standard_exec_prefix, spec_machine, "/"),
2544 concat (spec_version, "/", tooldir_prefix),
2548 add_prefix (&exec_prefix, concat (tooldir_prefix, "bin", "/"),
2550 add_prefix (&startfile_prefix, concat (tooldir_prefix, "lib", "/"),
2553 /* More prefixes are enabled in main, after we read the specs file
2554 and determine whether this is cross-compilation or not. */
2557 /* Then create the space for the vectors and scan again. */
2559 switches = ((struct switchstr *)
2560 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2561 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2564 last_language_n_infiles = -1;
2566 /* This, time, copy the text of each switch and store a pointer
2567 to the copy in the vector of switches.
2568 Store all the infiles in their vector. */
2570 for (i = 1; i < argc; i++)
2572 /* Just skip the switches that were handled by the preceding loop. */
2573 if (!strcmp (argv[i], "-Xlinker"))
2575 else if (! strncmp (argv[i], "-Wl,", 4))
2577 else if (! strncmp (argv[i], "-Wa,", 4))
2579 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2581 else if (! strncmp (argv[i], "-print-file-name=", 17))
2583 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2585 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2587 /* Compensate for the +e options to the C++ front-end;
2588 they're there simply for cfront call-compatibility. We do
2589 some magic in default_compilers to pass them down properly.
2590 Note we deliberately start at the `+' here, to avoid passing
2591 -e0 or -e1 down into the linker. */
2592 switches[n_switches].part1 = &argv[i][0];
2593 switches[n_switches].args = 0;
2594 switches[n_switches].live_cond = 0;
2595 switches[n_switches].valid = 0;
2598 else if (argv[i][0] == '-' && argv[i][1] != 0 && argv[i][1] != 'l')
2600 register char *p = &argv[i][1];
2601 register int c = *p;
2603 if (c == 'B' || c == 'b' || c == 'V')
2605 /* Skip a separate arg, if any. */
2612 if (p[1] == 0 && i + 1 == argc)
2613 fatal ("argument to `-x' is missing");
2615 spec_lang = argv[++i];
2618 if (! strcmp (spec_lang, "none"))
2619 /* Suppress the warning if -xnone comes after the last input file,
2620 because alternate command interfaces like g++ might find it
2621 useful to place -xnone after each input file. */
2624 last_language_n_infiles = n_infiles;
2627 switches[n_switches].part1 = p;
2628 /* Deal with option arguments in separate argv elements. */
2629 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2630 || WORD_SWITCH_TAKES_ARG (p))
2633 int n_args = WORD_SWITCH_TAKES_ARG (p);
2637 /* Count only the option arguments in separate argv elements. */
2638 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2640 if (i + n_args >= argc)
2641 fatal ("argument to `-%s' is missing", p);
2642 switches[n_switches].args
2643 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2645 switches[n_switches].args[j++] = argv[++i];
2646 /* Null-terminate the vector. */
2647 switches[n_switches].args[j] = 0;
2649 else if (*switches_need_spaces != 0 && (c == 'o' || c == 'L'))
2651 /* On some systems, ld cannot handle -o or -L without space.
2652 So split the -o or -L from its argument. */
2653 switches[n_switches].part1 = (c == 'o' ? "o" : "L");
2654 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2655 switches[n_switches].args[0] = xmalloc (strlen (p));
2656 strcpy (switches[n_switches].args[0], &p[1]);
2657 switches[n_switches].args[1] = 0;
2660 switches[n_switches].args = 0;
2662 switches[n_switches].live_cond = 0;
2663 switches[n_switches].valid = 0;
2664 /* This is always valid, since gcc.c itself understands it. */
2665 if (!strcmp (p, "save-temps"))
2666 switches[n_switches].valid = 1;
2671 if ((argv[i][0] != '-' || argv[i][1] != 'l')
2672 && strcmp (argv[i], "-")
2673 && access (argv[i], R_OK) < 0)
2675 perror_with_name (argv[i]);
2680 infiles[n_infiles].language = spec_lang;
2681 infiles[n_infiles++].name = argv[i];
2686 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2687 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2689 switches[n_switches].part1 = 0;
2690 infiles[n_infiles].name = 0;
2692 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
2693 if (gcc_exec_prefix)
2695 temp = (char *) xmalloc (strlen (gcc_exec_prefix) + strlen (spec_version)
2696 + strlen (spec_machine) + 3);
2697 strcpy (temp, gcc_exec_prefix);
2698 strcat (temp, spec_machine);
2700 strcat (temp, spec_version);
2702 gcc_exec_prefix = temp;
2706 /* Process a spec string, accumulating and running commands. */
2708 /* These variables describe the input file name.
2709 input_file_number is the index on outfiles of this file,
2710 so that the output file name can be stored for later use by %o.
2711 input_basename is the start of the part of the input file
2712 sans all directory names, and basename_length is the number
2713 of characters starting there excluding the suffix .c or whatever. */
2715 static char *input_filename;
2716 static int input_file_number;
2717 static int input_filename_length;
2718 static int basename_length;
2719 static char *input_basename;
2720 static char *input_suffix;
2722 /* These are variables used within do_spec and do_spec_1. */
2724 /* Nonzero if an arg has been started and not yet terminated
2725 (with space, tab or newline). */
2726 static int arg_going;
2728 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2729 is a temporary file name. */
2730 static int delete_this_arg;
2732 /* Nonzero means %w has been seen; the next arg to be terminated
2733 is the output file name of this compilation. */
2734 static int this_is_output_file;
2736 /* Nonzero means %s has been seen; the next arg to be terminated
2737 is the name of a library file and we should try the standard
2738 search dirs for it. */
2739 static int this_is_library_file;
2741 /* Nonzero means that the input of this command is coming from a pipe. */
2742 static int input_from_pipe;
2744 /* Process the spec SPEC and run the commands specified therein.
2745 Returns 0 if the spec is successfully processed; -1 if failed. */
2755 delete_this_arg = 0;
2756 this_is_output_file = 0;
2757 this_is_library_file = 0;
2758 input_from_pipe = 0;
2760 value = do_spec_1 (spec, 0, NULL_PTR);
2762 /* Force out any unfinished command.
2763 If -pipe, this forces out the last command if it ended in `|'. */
2766 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2769 if (argbuf_index > 0)
2776 /* Process the sub-spec SPEC as a portion of a larger spec.
2777 This is like processing a whole spec except that we do
2778 not initialize at the beginning and we do not supply a
2779 newline by default at the end.
2780 INSWITCH nonzero means don't process %-sequences in SPEC;
2781 in this case, % is treated as an ordinary character.
2782 This is used while substituting switches.
2783 INSWITCH nonzero also causes SPC not to terminate an argument.
2785 Value is zero unless a line was finished
2786 and the command on that line reported an error. */
2789 do_spec_1 (spec, inswitch, soft_matched_part)
2792 char *soft_matched_part;
2794 register char *p = spec;
2801 /* If substituting a switch, treat all chars like letters.
2802 Otherwise, NL, SPC, TAB and % are special. */
2803 switch (inswitch ? 'a' : c)
2806 /* End of line: finish any pending argument,
2807 then run the pending command if one has been started. */
2810 obstack_1grow (&obstack, 0);
2811 string = obstack_finish (&obstack);
2812 if (this_is_library_file)
2813 string = find_file (string);
2814 store_arg (string, delete_this_arg, this_is_output_file);
2815 if (this_is_output_file)
2816 outfiles[input_file_number] = string;
2820 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2823 for (i = 0; i < n_switches; i++)
2824 if (!strcmp (switches[i].part1, "pipe"))
2827 /* A `|' before the newline means use a pipe here,
2828 but only if -pipe was specified.
2829 Otherwise, execute now and don't pass the `|' as an arg. */
2832 input_from_pipe = 1;
2833 switches[i].valid = 1;
2840 if (argbuf_index > 0)
2846 /* Reinitialize for a new command, and for a new argument. */
2849 delete_this_arg = 0;
2850 this_is_output_file = 0;
2851 this_is_library_file = 0;
2852 input_from_pipe = 0;
2856 /* End any pending argument. */
2859 obstack_1grow (&obstack, 0);
2860 string = obstack_finish (&obstack);
2861 if (this_is_library_file)
2862 string = find_file (string);
2863 store_arg (string, delete_this_arg, this_is_output_file);
2864 if (this_is_output_file)
2865 outfiles[input_file_number] = string;
2869 obstack_1grow (&obstack, c);
2875 /* Space or tab ends an argument if one is pending. */
2878 obstack_1grow (&obstack, 0);
2879 string = obstack_finish (&obstack);
2880 if (this_is_library_file)
2881 string = find_file (string);
2882 store_arg (string, delete_this_arg, this_is_output_file);
2883 if (this_is_output_file)
2884 outfiles[input_file_number] = string;
2886 /* Reinitialize for a new argument. */
2888 delete_this_arg = 0;
2889 this_is_output_file = 0;
2890 this_is_library_file = 0;
2897 fatal ("Invalid specification! Bug in cc.");
2900 obstack_grow (&obstack, input_basename, basename_length);
2905 delete_this_arg = 2;
2908 /* Dump out the directories specified with LIBRARY_PATH,
2909 followed by the absolute directories
2910 that we search for startfiles. */
2913 struct prefix_list *pl = startfile_prefix.plist;
2915 char *buffer = (char *) xmalloc (bufsize);
2918 for (; pl; pl = pl->next)
2920 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
2921 /* Used on systems which record the specified -L dirs
2922 and use them to search for dynamic linking. */
2923 /* Relative directories always come from -B,
2924 and it is better not to use them for searching
2925 at run time. In particular, stage1 loses */
2926 if (pl->prefix[0] != '/')
2931 if (is_directory (pl->prefix, machine_suffix, 1))
2933 do_spec_1 ("-L", 0, NULL_PTR);
2934 #ifdef SPACE_AFTER_L_OPTION
2935 do_spec_1 (" ", 0, NULL_PTR);
2937 do_spec_1 (pl->prefix, 1, NULL_PTR);
2938 /* Remove slash from machine_suffix. */
2939 if (strlen (machine_suffix) >= bufsize)
2940 bufsize = strlen (machine_suffix) * 2 + 1;
2941 buffer = (char *) xrealloc (buffer, bufsize);
2942 strcpy (buffer, machine_suffix);
2943 idx = strlen (buffer);
2944 if (buffer[idx - 1] == '/')
2945 buffer[idx - 1] = 0;
2946 do_spec_1 (buffer, 1, NULL_PTR);
2947 /* Make this a separate argument. */
2948 do_spec_1 (" ", 0, NULL_PTR);
2951 if (!pl->require_machine_suffix)
2953 if (is_directory (pl->prefix, "", 1))
2955 do_spec_1 ("-L", 0, NULL_PTR);
2956 #ifdef SPACE_AFTER_L_OPTION
2957 do_spec_1 (" ", 0, NULL_PTR);
2959 /* Remove slash from pl->prefix. */
2960 if (strlen (pl->prefix) >= bufsize)
2961 bufsize = strlen (pl->prefix) * 2 + 1;
2962 buffer = (char *) xrealloc (buffer, bufsize);
2963 strcpy (buffer, pl->prefix);
2964 idx = strlen (buffer);
2965 if (buffer[idx - 1] == '/')
2966 buffer[idx - 1] = 0;
2967 do_spec_1 (buffer, 1, NULL_PTR);
2968 /* Make this a separate argument. */
2969 do_spec_1 (" ", 0, NULL_PTR);
2978 /* {...:%efoo} means report an error with `foo' as error message
2979 and don't execute any more commands for this file. */
2983 while (*p != 0 && *p != '\n') p++;
2984 buf = (char *) alloca (p - q + 1);
2985 strncpy (buf, q, p - q);
2995 if (save_temps_flag)
2996 obstack_grow (&obstack, input_basename, basename_length);
2999 #ifdef MKTEMP_EACH_FILE
3000 /* ??? This has a problem: the total number of
3001 values mktemp can return is limited.
3002 That matters for the names of object files.
3003 In 2.4, do something about that. */
3004 struct temp_name *t;
3006 while (*p == '.' || isalpha (*p))
3009 /* See if we already have an association of %g/%u/%U and
3011 for (t = temp_names; t; t = t->next)
3012 if (t->length == p - suffix
3013 && strncmp (t->suffix, suffix, p - suffix) == 0
3014 && t->unique == (c != 'g'))
3017 /* Make a new association if needed. %u requires one. */
3018 if (t == 0 || c == 'u')
3022 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3023 t->next = temp_names;
3026 t->length = p - suffix;
3027 t->suffix = save_string (suffix, p - suffix);
3028 t->unique = (c != 'g');
3029 choose_temp_base ();
3030 t->filename = temp_filename;
3031 t->filename_length = temp_filename_length;
3034 obstack_grow (&obstack, t->filename, t->filename_length);
3035 delete_this_arg = 1;
3037 obstack_grow (&obstack, temp_filename, temp_filename_length);
3038 if (c == 'u' || c == 'U')
3044 sprintf (buff, "%d", unique);
3045 obstack_grow (&obstack, buff, strlen (buff));
3048 delete_this_arg = 1;
3054 obstack_grow (&obstack, input_filename, input_filename_length);
3060 struct prefix_list *pl = include_prefix.plist;
3062 if (gcc_exec_prefix)
3064 do_spec_1 ("-iprefix", 1, NULL_PTR);
3065 /* Make this a separate argument. */
3066 do_spec_1 (" ", 0, NULL_PTR);
3067 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3068 do_spec_1 (" ", 0, NULL_PTR);
3071 for (; pl; pl = pl->next)
3073 do_spec_1 ("-isystem", 1, NULL_PTR);
3074 /* Make this a separate argument. */
3075 do_spec_1 (" ", 0, NULL_PTR);
3076 do_spec_1 (pl->prefix, 1, NULL_PTR);
3077 do_spec_1 (" ", 0, NULL_PTR);
3085 for (f = 0; f < n_infiles; f++)
3086 store_arg (outfiles[f], 0, 0);
3091 this_is_library_file = 1;
3095 this_is_output_file = 1;
3100 int index = argbuf_index;
3101 /* Handle the {...} following the %W. */
3104 p = handle_braces (p + 1);
3107 /* If any args were output, mark the last one for deletion
3109 if (argbuf_index != index)
3110 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3114 /* %x{OPTION} records OPTION for %X to output. */
3120 /* Skip past the option value and make a copy. */
3125 string = save_string (p1 + 1, p - p1 - 2);
3127 /* See if we already recorded this option. */
3128 for (i = 0; i < n_linker_options; i++)
3129 if (! strcmp (string, linker_options[i]))
3135 /* This option is new; add it. */
3137 if (!linker_options)
3139 = (char **) xmalloc (n_linker_options * sizeof (char **));
3142 = (char **) xrealloc (linker_options,
3143 n_linker_options * sizeof (char **));
3145 linker_options[n_linker_options - 1] = string;
3149 /* Dump out the options accumulated previously using %x,
3150 -Xlinker and -Wl,. */
3152 for (i = 0; i < n_linker_options; i++)
3154 do_spec_1 (linker_options[i], 1, NULL_PTR);
3155 /* Make each accumulated option a separate argument. */
3156 do_spec_1 (" ", 0, NULL_PTR);
3160 /* Dump out the options accumulated previously using -Wa,. */
3162 for (i = 0; i < n_assembler_options; i++)
3164 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3165 /* Make each accumulated option a separate argument. */
3166 do_spec_1 (" ", 0, NULL_PTR);
3170 /* Here are digits and numbers that just process
3171 a certain constant string as a spec. */
3174 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3180 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3186 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3192 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3198 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3204 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3210 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3216 value = do_spec_1 (link_spec, 0, NULL_PTR);
3222 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3229 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3233 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3237 if (! strncmp (y, "-D", 2))
3238 /* Copy the whole option. */
3239 while (*y && *y != ' ' && *y != '\t')
3241 else if (*y == ' ' || *y == '\t')
3242 /* Copy whitespace to the result. */
3244 /* Don't copy other options. */
3251 value = do_spec_1 (buf, 0, NULL_PTR);
3259 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3263 /* Copy all of CPP_PREDEFINES into BUF,
3264 but put __ after every -D and at the end of each arg. */
3268 if (! strncmp (y, "-D", 2))
3275 if (strncmp (y, "__", 2))
3277 /* Stick __ at front of macro name. */
3280 /* Arrange to stick __ at the end as well. */
3284 /* Copy the macro name. */
3285 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3294 /* Copy the value given, if any. */
3295 while (*y && *y != ' ' && *y != '\t')
3298 else if (*y == ' ' || *y == '\t')
3299 /* Copy whitespace to the result. */
3301 /* Don't copy -A options */
3307 /* Copy all of CPP_PREDEFINES into BUF,
3308 but put __ after every -D. */
3312 if (! strncmp (y, "-D", 2))
3316 if (strncmp (y, "__", 2))
3318 /* Stick -D__ at front of macro name. */
3324 /* Copy the macro name. */
3325 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3328 /* Copy the value given, if any. */
3329 while (*y && *y != ' ' && *y != '\t')
3334 /* Do not copy this macro - we have just done it before */
3335 while (*y && *y != ' ' && *y != '\t')
3339 else if (*y == ' ' || *y == '\t')
3340 /* Copy whitespace to the result. */
3342 /* Don't copy -A options */
3348 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3352 if (! strncmp (y, "-A", 2))
3353 /* Copy the whole option. */
3354 while (*y && *y != ' ' && *y != '\t')
3356 else if (*y == ' ' || *y == '\t')
3357 /* Copy whitespace to the result. */
3359 /* Don't copy other options. */
3366 value = do_spec_1 (buf, 0, NULL_PTR);
3373 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3378 /* Here we define characters other than letters and digits. */
3381 p = handle_braces (p);
3387 obstack_1grow (&obstack, '%');
3391 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3392 do_spec_1 (" ", 0, NULL_PTR);
3395 /* Process a string found as the value of a spec given by name.
3396 This feature allows individual machine descriptions
3397 to add and use their own specs.
3398 %[...] modifies -D options the way %P does;
3399 %(...) uses the spec unmodified. */
3404 struct spec_list *sl;
3407 /* The string after the S/P is the name of a spec that is to be
3409 while (*p && *p != ')' && *p != ']')
3412 /* See if it's in the list */
3413 for (len = p - name, sl = specs; sl; sl = sl->next)
3414 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3424 value = do_spec_1 (name, 0, NULL_PTR);
3430 char *x = (char *) alloca (strlen (name) * 2 + 1);
3434 /* Copy all of NAME into BUF, but put __ after
3435 every -D and at the end of each arg, */
3438 if (! strncmp (y, "-D", 2))
3446 else if (*y == ' ' || *y == 0)
3460 value = do_spec_1 (buf, 0, NULL_PTR);
3466 /* Discard the closing paren or bracket. */
3474 int c1 = *p++; /* Select first or second version number. */
3475 char *v = compiler_version;
3477 /* If desired, advance to second version number. */
3480 /* Set P after the first period. */
3481 while (*v != 0 && *v != ' ' && *v != '.')
3486 /* Set Q at the next period or at the end. */
3488 while (*q != 0 && *q != ' ' && *q != '.')
3490 /* Empty string means zero. */
3496 /* Put that part into the command. */
3497 obstack_grow (&obstack, v, q - v);
3503 if (input_from_pipe)
3504 do_spec_1 ("-", 0, NULL_PTR);
3513 /* Backslash: treat next character as ordinary. */
3518 /* Ordinary character: put it into the current argument. */
3519 obstack_1grow (&obstack, c);
3523 return 0; /* End of string */
3526 /* Return 0 if we call do_spec_1 and that returns -1. */
3539 /* A `|' after the open-brace means,
3540 if the test fails, output a single minus sign rather than nothing.
3541 This is used in %{|!pipe:...}. */
3545 /* A `!' after the open-brace negates the condition:
3546 succeed if the specified switch is not present. */
3550 /* A `.' after the open-brace means test against the current suffix. */
3560 while (*p != ':' && *p != '}') p++;
3563 register int count = 1;
3581 int found = (input_suffix != 0
3582 && strlen (input_suffix) == p - filter
3583 && strncmp (input_suffix, filter, p - filter) == 0);
3589 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3594 else if (p[-1] == '*' && p[0] == '}')
3596 /* Substitute all matching switches as separate args. */
3599 for (i = 0; i < n_switches; i++)
3600 if (!strncmp (switches[i].part1, filter, p - filter)
3601 && check_live_switch (i, p - filter))
3606 /* Test for presence of the specified switch. */
3610 /* If name specified ends in *, as in {x*:...},
3611 check for %* and handle that case. */
3612 if (p[-1] == '*' && !negate)
3617 /* First see whether we have %*. */
3621 if (*r == '%' && r[1] == '*')
3625 /* If we do, handle that case. */
3628 /* Substitute all matching switches as separate args.
3629 But do this by substituting for %*
3630 in the text that follows the colon. */
3632 unsigned hard_match_len = p - filter - 1;
3633 char *string = save_string (p + 1, q - p - 2);
3635 for (i = 0; i < n_switches; i++)
3636 if (!strncmp (switches[i].part1, filter, hard_match_len)
3637 && check_live_switch (i, hard_match_len))
3639 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3640 /* Pass any arguments this switch has. */
3648 /* If name specified ends in *, as in {x*:...},
3649 check for presence of any switch name starting with x. */
3652 for (i = 0; i < n_switches; i++)
3654 unsigned hard_match_len = p - filter - 1;
3656 if (!strncmp (switches[i].part1, filter, hard_match_len)
3657 && check_live_switch (i, hard_match_len))
3663 /* Otherwise, check for presence of exact name specified. */
3666 for (i = 0; i < n_switches; i++)
3668 if (!strncmp (switches[i].part1, filter, p - filter)
3669 && switches[i].part1[p - filter] == 0
3670 && check_live_switch (i, p - filter))
3678 /* If it is as desired (present for %{s...}, absent for %{-s...})
3679 then substitute either the switch or the specified
3680 conditional text. */
3681 if (present != negate)
3689 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3695 /* Here if a %{|...} conditional fails: output a minus sign,
3696 which means "standard output" or "standard input". */
3697 do_spec_1 ("-", 0, NULL_PTR);
3704 /* Return 0 if switch number SWITCHNUM is obsoleted by a later switch
3705 on the command line. LENGTH is the length of the switch name we
3706 are to compare for. Otherwise return zero.
3708 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
3709 whose value does not begin with "no-" is obsoleted by the same value
3710 with the "no-", similarly for a switch with the "no-" prefix. */
3713 check_live_switch (switchnum, length)
3717 char *name = switches[switchnum].part1;
3720 /* If we just have a single letter and it isn't "O", a negating
3721 switch would always match, so ignore that case. We will just
3722 send the conflicting switches to the compiler phase. */
3723 if (length == 1 && name[0] != 'O')
3726 /* If we already processed this switch and determined if it was
3727 live or not, return our past determination. */
3728 if (switches[switchnum].live_cond != 0)
3729 return switches[switchnum].live_cond > 0;
3731 /* 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 (length > 4 && ! 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;