1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
20 This paragraph is here to try to keep Sun CC from dying.
21 The number of chars here seems crucial!!!! */
23 /* This program is the user interface to the C compiler and possibly to
24 other compilers. It is used because compilation is a complicated procedure
25 which involves running several programs and passing temporary files between
26 them, forwarding the users switches to those programs selectively,
27 and deleting the temporary files at the end.
29 CC recognizes how to compile each input file by suffixes in the file names.
30 Once it knows which kind of compilation to perform, the procedure for
31 compilation is specified by a string called a "spec". */
33 #include <sys/types.h>
37 #include <sys/file.h> /* May get R_OK, etc. on some systems. */
54 /* Add prototype support. */
56 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
57 #define PROTO(ARGS) ARGS
59 #define PROTO(ARGS) ()
65 #define PVPROTO(ARGS) ARGS
66 #define VPROTO(ARGS) ARGS
67 #define VA_START(va_list,var) va_start(va_list,var)
69 #define PVPROTO(ARGS) ()
70 #define VPROTO(ARGS) (va_alist) va_dcl
71 #define VA_START(va_list,var) va_start(va_list)
75 /* Define a generic NULL if one hasn't already been defined. */
82 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
83 #define GENERIC_PTR void *
85 #define GENERIC_PTR char *
90 #define NULL_PTR ((GENERIC_PTR)0)
97 /* On MSDOS, write temp files in current dir
98 because there's no place else we can expect to use. */
105 /* Test if something is a normal file. */
107 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
110 /* Test if something is a directory. */
112 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
115 /* By default there is no special suffix for executables. */
116 #ifndef EXECUTABLE_SUFFIX
117 #define EXECUTABLE_SUFFIX ""
120 /* By default, colon separates directories in a path. */
121 #ifndef PATH_SEPARATOR
122 #define PATH_SEPARATOR ':'
125 #define obstack_chunk_alloc xmalloc
126 #define obstack_chunk_free free
129 extern char *getenv ();
131 extern int errno, sys_nerr;
133 extern const char *const sys_errlist[];
135 extern char *sys_errlist[];
138 extern int execv (), execvp ();
140 /* If a stage of compilation returns an exit status >= 1,
141 compilation of that file ceases. */
143 #define MIN_FATAL_STATUS 1
145 /* Flag saying to print the full filename of libgcc.a
146 as found through our usual search mechanism. */
148 static int print_libgcc_file_name;
150 /* Flag indicating whether we should print the command and arguments */
152 static int verbose_flag;
154 /* Nonzero means write "temp" files in source directory
155 and use the source file's name in them, and don't delete them. */
157 static int save_temps_flag;
159 /* The compiler version. */
161 static char *compiler_version;
163 /* The target version specified with -V */
165 static char *spec_version = DEFAULT_TARGET_VERSION;
167 /* The target machine specified with -b. */
169 static char *spec_machine = DEFAULT_TARGET_MACHINE;
171 /* Nonzero if cross-compiling.
172 When -b is used, the value comes from the `specs' file. */
175 static int cross_compile = 1;
177 static int cross_compile = 0;
180 /* The number of errors that have occurred; the link phase will not be
181 run if this is non-zero. */
182 static int error_count = 0;
184 /* This is the obstack which we use to allocate many strings. */
186 static struct obstack obstack;
188 /* This is the obstack to build an environment variable to pass to
189 collect2 that describes all of the relevant switches of what to
190 pass the compiler in building the list of pointers to constructors
193 static struct obstack collect_obstack;
195 extern char *version_string;
197 /* Forward declaration for prototypes. */
200 static void set_spec PROTO((char *, char *));
201 static struct compiler *lookup_compiler PROTO((char *, int, char *));
202 static char *find_a_file PROTO((struct path_prefix *, char *, int));
203 static void add_prefix PROTO((struct path_prefix *, char *, int, int, int *));
204 static char *skip_whitespace PROTO((char *));
205 static void record_temp_file PROTO((char *, int, int));
206 static int check_live_switch PROTO((int, int));
207 static char *handle_braces PROTO((char *));
208 static char *save_string PROTO((char *, int));
209 static char *concat PROTO((char *, char *, char *));
210 static int do_spec PROTO((char *));
211 static int do_spec_1 PROTO((char *, int, char *));
212 static char *find_file PROTO((char *));
213 static int is_directory PROTO((char *, char *, int));
214 static void validate_switches PROTO((char *));
215 static void validate_all_switches PROTO((void));
216 static void give_switch PROTO((int, int));
217 static void pfatal_with_name PROTO((char *));
218 static void perror_with_name PROTO((char *));
219 static void perror_exec PROTO((char *));
221 static void fatal PVPROTO((char *, ...));
222 static void error PVPROTO((char *, ...));
224 /* We must not provide any prototype here, even if ANSI C. */
225 static void fatal PROTO(());
226 static void error PROTO(());
233 /* Specs are strings containing lines, each of which (if not blank)
234 is made up of a program name, and arguments separated by spaces.
235 The program name must be exact and start from root, since no path
236 is searched and it is unreliable to depend on the current working directory.
237 Redirection of input or output is not supported; the subprograms must
238 accept filenames saying what files to read and write.
240 In addition, the specs can contain %-sequences to substitute variable text
241 or for conditional text. Here is a table of all defined %-sequences.
242 Note that spaces are not generated automatically around the results of
243 expanding these sequences; therefore, you can concatenate them together
244 or with constant text in a single argument.
246 %% substitute one % into the program name or argument.
247 %i substitute the name of the input file being processed.
248 %b substitute the basename of the input file being processed.
249 This is the substring up to (and not including) the last period
250 and not including the directory.
251 %g substitute the temporary-file-name-base. This is a string chosen
252 once per compilation. Different temporary file names are made by
253 concatenation of constant strings on the end, as in `%g.s'.
254 %g also has the same effect of %d.
255 %u like %g, but make the temporary file name unique.
256 %U returns the last file name generated with %u.
257 %d marks the argument containing or following the %d as a
258 temporary file name, so that that file will be deleted if CC exits
259 successfully. Unlike %g, this contributes no text to the argument.
260 %w marks the argument containing or following the %w as the
261 "output file" of this compilation. This puts the argument
262 into the sequence of arguments that %o will substitute later.
264 like %{...} but mark last argument supplied within
265 as a file to be deleted on failure.
266 %o substitutes the names of all the output files, with spaces
267 automatically placed around them. You should write spaces
268 around the %o as well or the results are undefined.
269 %o is for use in the specs for running the linker.
270 Input files whose names have no recognized suffix are not compiled
271 at all, but they are included among the output files, so they will
273 %p substitutes the standard macro predefinitions for the
274 current target machine. Use this when running cpp.
275 %P like %p, but puts `__' before and after the name of each macro.
276 (Except macros that already have __.)
278 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
279 %s current argument is the name of a library or startup file of some sort.
280 Search for that file in a standard list of directories
281 and substitute the full name found.
282 %eSTR Print STR as an error message. STR is terminated by a newline.
283 Use this when inconsistent options are detected.
284 %x{OPTION} Accumulate an option for %X.
285 %X Output the accumulated linker options specified by compilations.
286 %Y Output the accumulated assembler options specified by compilations.
287 %v1 Substitute the major version number of GCC.
288 (For version 2.5.n, this is 2.)
289 %v2 Substitute the minor version number of GCC.
290 (For version 2.5.n, this is 5.)
291 %a process ASM_SPEC as a spec.
292 This allows config.h to specify part of the spec for running as.
293 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
294 used here. This can be used to run a post-processor after the
295 assembler has done it's job.
296 %D Dump out a -L option for each directory in startfile_prefix.
297 %l process LINK_SPEC as a spec.
298 %L process LIB_SPEC as a spec.
299 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
300 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
301 %c process SIGNED_CHAR_SPEC as a spec.
302 %C process CPP_SPEC as a spec. A capital C is actually used here.
303 %1 process CC1_SPEC as a spec.
304 %2 process CC1PLUS_SPEC as a spec.
305 %| output "-" if the input for the current command is coming from a pipe.
306 %* substitute the variable part of a matched option. (See below.)
307 Note that each comma in the substituted string is replaced by
309 %{S} substitutes the -S switch, if that switch was given to CC.
310 If that switch was not specified, this substitutes nothing.
311 Here S is a metasyntactic variable.
312 %{S*} substitutes all the switches specified to CC whose names start
313 with -S. This is used for -o, -D, -I, etc; switches that take
314 arguments. CC considers `-o foo' as being one switch whose
315 name starts with `o'. %{o*} would substitute this text,
316 including the space; thus, two arguments would be generated.
317 %{S*:X} substitutes X if one or more switches whose names start with -S are
318 specified to CC. Note that the tail part of the -S option
319 (i.e. the part matched by the `*') will be substituted for each
320 occurrence of %* within X.
321 %{S:X} substitutes X, but only if the -S switch was given to CC.
322 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
323 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
324 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
325 %{.S:X} substitutes X, but only if processing a file with suffix S.
326 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
327 %(Spec) processes a specification defined in a specs file as *Spec:
328 %[Spec] as above, but put __ around -D arguments
330 The conditional text X in a %{S:X} or %{!S:X} construct may contain
331 other nested % constructs or spaces, or even newlines. They are
332 processed as usual, as described above.
334 The -O, -f, -m, and -w switches are handled specifically in these
335 constructs. If another value of -O or the negated form of a -f, -m, or
336 -W switch is found later in the command line, the earlier switch
339 The character | is used to indicate that a command should be piped to
340 the following command, but only if -pipe is specified.
342 Note that it is built into CC which switches take arguments and which
343 do not. You might think it would be useful to generalize this to
344 allow each compiler's spec to say which switches take arguments. But
345 this cannot be done in a consistent fashion. CC cannot even decide
346 which input files have been specified without knowing which switches
347 take arguments, and it must know which input files to compile in order
348 to tell which compilers to run.
350 CC also knows implicitly that arguments starting in `-l' are to be
351 treated as compiler output files, and passed to the linker in their
352 proper position among the other output files. */
354 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
356 /* config.h can define ASM_SPEC to provide extra args to the assembler
357 or extra switch-translations. */
362 /* config.h can define ASM_FINAL_SPEC to run a post processor after
363 the assembler has run. */
364 #ifndef ASM_FINAL_SPEC
365 #define ASM_FINAL_SPEC ""
368 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
369 or extra switch-translations. */
374 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
375 or extra switch-translations. */
380 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
381 or extra switch-translations. */
383 #define CC1PLUS_SPEC ""
386 /* config.h can define LINK_SPEC to provide extra args to the linker
387 or extra switch-translations. */
392 /* config.h can define LIB_SPEC to override the default libraries. */
394 #define LIB_SPEC "%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
397 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
398 #ifndef STARTFILE_SPEC
399 #define STARTFILE_SPEC \
400 "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}"
403 /* config.h can define SWITCHES_NEED_SPACES to control passing -o and -L.
404 Make the string nonempty to require spaces there. */
405 #ifndef SWITCHES_NEED_SPACES
406 #define SWITCHES_NEED_SPACES ""
409 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
411 #define ENDFILE_SPEC ""
414 /* This spec is used for telling cpp whether char is signed or not. */
415 #ifndef SIGNED_CHAR_SPEC
416 /* Use #if rather than ?:
417 because MIPS C compiler rejects like ?: in initializers. */
418 #if DEFAULT_SIGNED_CHAR
419 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
421 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
425 static char *cpp_spec = CPP_SPEC;
426 static char *cpp_predefines = CPP_PREDEFINES;
427 static char *cc1_spec = CC1_SPEC;
428 static char *cc1plus_spec = CC1PLUS_SPEC;
429 static char *signed_char_spec = SIGNED_CHAR_SPEC;
430 static char *asm_spec = ASM_SPEC;
431 static char *asm_final_spec = ASM_FINAL_SPEC;
432 static char *link_spec = LINK_SPEC;
433 static char *lib_spec = LIB_SPEC;
434 static char *endfile_spec = ENDFILE_SPEC;
435 static char *startfile_spec = STARTFILE_SPEC;
436 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
438 /* This defines which switch letters take arguments. */
440 #ifndef SWITCH_TAKES_ARG
441 #define SWITCH_TAKES_ARG(CHAR) \
442 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
443 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
444 || (CHAR) == 'I' || (CHAR) == 'm' \
445 || (CHAR) == 'L' || (CHAR) == 'A')
448 /* This defines which multi-letter switches take arguments. */
450 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
451 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
452 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
453 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
454 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
455 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore"))
457 #ifndef WORD_SWITCH_TAKES_ARG
458 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
461 /* Record the mapping from file suffixes for compilation specs. */
465 char *suffix; /* Use this compiler for input files
466 whose names end in this suffix. */
468 char *spec[4]; /* To use this compiler, concatenate these
469 specs and pass to do_spec. */
472 /* Pointer to a vector of `struct compiler' that gives the spec for
473 compiling a file, based on its suffix.
474 A file that does not end in any of these suffixes will be passed
475 unchanged to the loader and nothing else will be done to it.
477 An entry containing two 0s is used to terminate the vector.
479 If multiple entries match a file, the last matching one is used. */
481 static struct compiler *compilers;
483 /* Number of entries in `compilers', not counting the null terminator. */
485 static int n_compilers;
487 /* The default list of file name suffixes and their compilation specs. */
489 static struct compiler default_compilers[] =
493 "cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
494 %{C:%{!E:%eGNU C does not support -C without using -E}}\
495 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d}\
496 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
497 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
498 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
499 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
500 %{traditional-cpp:-traditional}\
501 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
502 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
503 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
504 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a}\
505 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
506 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
508 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
509 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
510 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
511 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
512 %{!pipe:%g.s} %A\n }}}}"},
514 "%{E:cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
515 %{C:%{!E:%eGNU C does not support -C without using -E}}\
516 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d}\
517 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
518 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
519 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
520 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
521 %{traditional-cpp:-traditional}\
522 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
524 %{!E:%e-E required when input is from standard input}"},
525 {".m", "@objective-c"},
527 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
528 %{C:%{!E:%eGNU C does not support -C without using -E}}\
529 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d}\
530 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
531 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
532 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
533 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
534 %{traditional-cpp:-traditional}\
535 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
536 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
537 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
538 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a}\
539 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
540 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
541 -lang-objc %{gen-decls} \
543 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
544 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
545 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
546 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
547 %{!pipe:%g.s} %A\n }}}}"},
550 "%{!E:%eCompilation of header file requested} \
551 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
552 %{C:%{!E:%eGNU C does not support -C without using -E}}\
553 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} \
554 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
555 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
556 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
557 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
558 %{traditional-cpp:-traditional}\
559 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
566 "cpp -lang-c++ %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
567 %{C:%{!E:%eGNU C++ does not support -C without using -E}}\
568 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} \
569 -undef -D__GNUC__=%v1 -D__GNUG__=%v1 -D__cplusplus -D__GNUC_MINOR__=%v2\
570 %{ansi:-trigraphs -$ -D__STRICT_ANSI__} %{!undef:%{!ansi:%p} %P}\
571 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
572 %{traditional-cpp:-traditional} %{trigraphs}\
573 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
574 %i %{!M:%{!MM:%{!E:%{!pipe:%g.ii}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
575 "%{!M:%{!MM:%{!E:cc1plus %{!pipe:%g.ii} %1 %2\
576 %{!Q:-quiet} -dumpbase %b.cc %{d*} %{m*} %{a}\
577 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} %{traditional}\
578 %{v:-version} %{pg:-p} %{p} %{f*} %{+e*}\
580 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
581 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
582 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
583 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
584 %{!pipe:%g.s} %A\n }}}}"},
585 {".i", "@cpp-output"},
587 "cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
588 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} %{traditional}\
589 %{v:-version} %{pg:-p} %{p} %{f*}\
591 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
592 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
593 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
594 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o} %{!pipe:%g.s} %A\n }"},
595 {".ii", "@c++-cpp-output"},
597 "cc1plus %i %1 %2 %{!Q:-quiet} %{d*} %{m*} %{a}\
598 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} %{traditional}\
599 %{v:-version} %{pg:-p} %{p} %{f*} %{+e*}\
601 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
602 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
603 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
604 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
605 %{!pipe:%g.s} %A\n }"},
606 {".s", "@assembler"},
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} %i %A\n }"},
610 {".S", "@assembler-with-cpp"},
611 {"@assembler-with-cpp",
612 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
613 %{C:%{!E:%eGNU C does not support -C without using -E}}\
614 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{trigraphs} \
615 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
616 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
617 %{traditional-cpp:-traditional}\
618 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
619 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
620 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
621 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
622 %{!pipe:%g.s} %A\n }}}}"},
627 "gnat1 %{k8:-gnatk8} %{w:-gnatws} %{!Q:-quiet} -dumpbase %b.ada\
628 %{g*} %{O*} %{p} %{pg:-p} %{f*} %{d*}\
629 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
630 %i %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} | \n",
631 "%{!S:%{!gnatc:%{!gnats:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
632 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
633 %{!pipe:%g.s} %A\n}}} "},
634 /* Mark end of table */
638 /* Number of elements in default_compilers, not counting the terminator. */
640 static int n_default_compilers
641 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
643 /* Here is the spec for running the linker, after compiling all files. */
645 /* -u* was put back because both BSD and SysV seem to support it. */
646 /* %{static:} simply prevents an error message if the target machine
647 doesn't handle -static. */
648 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
649 scripts which exist in user specified directories, or in standard
651 #ifdef LINK_LIBGCC_SPECIAL_1
652 /* Have gcc do the search for libgcc.a, but generate -L options as usual. */
653 static char *link_command_spec = "\
655 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
656 %{r} %{s} %{t} %{u*} %{x} %{z}\
657 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
658 %{L*} %D %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
660 #ifdef LINK_LIBGCC_SPECIAL
661 /* Have gcc do the search for libgcc.a, and don't generate -L options. */
662 static char *link_command_spec = "\
664 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
665 %{r} %{s} %{t} %{u*} %{x} %{z}\
666 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
667 %{L*} %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
669 /* Use -L and have the linker do the search for -lgcc. */
670 static char *link_command_spec = "\
672 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
673 %{r} %{s} %{t} %{u*} %{x} %{z}\
674 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
675 %{L*} %D %{T*} %o %{!nostdlib:-lgcc %L -lgcc %{!A:%E}}\n }}}}}}";
679 /* A vector of options to give to the linker.
680 These options are accumulated by -Xlinker and -Wl,
681 and substituted into the linker command with %X. */
682 static int n_linker_options;
683 static char **linker_options;
685 /* A vector of options to give to the assembler.
686 These options are accumulated by -Wa,
687 and substituted into the assembler command with %X. */
688 static int n_assembler_options;
689 static char **assembler_options;
691 /* Define how to map long options into short ones. */
693 /* This structure describes one mapping. */
696 /* The long option's name. */
698 /* The equivalent short option. */
700 /* Argument info. A string of flag chars; NULL equals no options.
701 a => argument required.
702 o => argument optional.
703 j => join argument to equivalent, making one word.
704 * => allow other text after NAME as an argument. */
708 /* This is the table of mappings. Mappings are tried sequentially
709 for each option encountered; the first one that matches, wins. */
711 struct option_map option_map[] =
713 {"--profile-blocks", "-a", 0},
714 {"--target", "-b", "a"},
715 {"--compile", "-c", 0},
716 {"--dump", "-d", "a"},
717 {"--entry", "-e", 0},
718 {"--debug", "-g", "oj"},
719 {"--include", "-include", "a"},
720 {"--imacros", "-imacros", "a"},
721 {"--include-prefix", "-iprefix", "a"},
722 {"--include-directory-after", "-idirafter", "a"},
723 {"--include-with-prefix", "-iwithprefix", "a"},
724 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
725 {"--include-with-prefix-after", "-iwithprefix", "a"},
726 {"--machine-", "-m", "*j"},
727 {"--machine", "-m", "aj"},
728 {"--no-standard-includes", "-nostdinc", 0},
729 {"--no-standard-libraries", "-nostdlib", 0},
730 {"--no-precompiled-includes", "-noprecomp", 0},
731 {"--output", "-o", "a"},
732 {"--profile", "-p", 0},
733 {"--quiet", "-q", 0},
734 {"--silent", "-q", 0},
735 {"--force-link", "-u", "a"},
736 {"--verbose", "-v", 0},
737 {"--version", "-dumpversion", 0},
738 {"--no-warnings", "-w", 0},
739 {"--language", "-x", "a"},
741 {"--assert", "-A", "a"},
742 {"--prefix", "-B", "a"},
743 {"--comments", "-C", 0},
744 {"--define-macro", "-D", "a"},
745 {"--preprocess", "-E", 0},
746 {"--trace-includes", "-H", 0},
747 {"--include-directory", "-I", "a"},
748 {"--include-barrier", "-I-", 0},
749 {"--library-directory", "-L", "a"},
750 {"--dependencies", "-M", 0},
751 {"--user-dependencies", "-MM", 0},
752 {"--write-dependencies", "-MD", 0},
753 {"--write-user-dependencies", "-MMD", 0},
754 {"--optimize", "-O", "oj"},
755 {"--no-line-commands", "-P", 0},
756 {"--assemble", "-S", 0},
757 {"--undefine-macro", "-U", "a"},
758 {"--use-version", "-V", "a"},
759 {"--for-assembler", "-Wa", "a"},
760 {"--extra-warnings", "-W", 0},
761 {"--all-warnings", "-Wall", 0},
762 {"--warn-", "-W", "*j"},
763 {"--for-linker", "-Xlinker", "a"},
765 {"--ansi", "-ansi", 0},
766 {"--traditional", "-traditional", 0},
767 {"--traditional-cpp", "-traditional-cpp", 0},
768 {"--trigraphs", "-trigraphs", 0},
769 {"--pipe", "-pipe", 0},
770 {"--dumpbase", "-dumpbase", "a"},
771 {"--pedantic", "-pedantic", 0},
772 {"--pedantic-errors", "-pedantic-errors", 0},
773 {"--save-temps", "-save-temps", 0},
774 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
775 {"--static", "-static", 0},
776 {"--shared", "-shared", 0},
777 {"--symbolic", "-symbolic", 0},
781 /* Translate the options described by *ARGCP and *ARGVP.
782 Make a new vector and store it back in *ARGVP,
783 and store its length in *ARGVC. */
786 translate_options (argcp, argvp)
792 char **argv = *argvp;
793 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
797 newv[newindex++] = argv[i++];
801 /* Translate -- options. */
802 if (argv[i][0] == '-' && argv[i][1] == '-')
804 /* Find a mapping that applies to this option. */
805 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
807 int optlen = strlen (option_map[j].name);
808 int complen = strlen (argv[i]);
809 char *arginfo = option_map[j].arg_info;
813 if (complen > optlen)
815 if (!strncmp (argv[i], option_map[j].name, complen))
817 int extra = strlen (argv[i]) > optlen;
822 /* If the option has an argument, accept that. */
823 if (argv[i][optlen] == '=')
824 arg = argv[i] + optlen + 1;
825 /* If this mapping allows extra text at end of name,
826 accept that as "argument". */
827 else if (index (arginfo, '*') != 0)
828 arg = argv[i] + optlen;
829 /* Otherwise, extra text at end means mismatch.
830 Try other mappings. */
834 else if (index (arginfo, '*') != 0)
835 error ("Incomplete `%s' option", option_map[j].name);
837 /* Handle arguments. */
838 if (index (arginfo, 'o') != 0)
843 error ("Missing argument to `%s' option",
848 else if (index (arginfo, '*') != 0)
850 else if (index (arginfo, 'a') == 0)
853 error ("Extraneous argument to `%s' option",
858 /* Store the translation as one argv elt or as two. */
859 if (arg != 0 && index (arginfo, 'j') != 0)
860 newv[newindex++] = concat (option_map[j].equivalent,
864 newv[newindex++] = option_map[j].equivalent;
865 newv[newindex++] = arg;
868 newv[newindex++] = option_map[j].equivalent;
875 /* Handle old-fashioned options--just copy them through,
876 with their arguments. */
877 else if (argv[i][0] == '-')
879 char *p = argv[i] + 1;
883 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
884 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
885 else if (WORD_SWITCH_TAKES_ARG (p))
886 nskip += WORD_SWITCH_TAKES_ARG (p);
887 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
890 else if (! strcmp (p, "Xlinker"))
895 newv[newindex++] = argv[i++];
900 /* Ordinary operands, or +e options. */
901 newv[newindex++] = argv[i++];
910 /* Read compilation specs from a file named FILENAME,
911 replacing the default ones.
913 A suffix which starts with `*' is a definition for
914 one of the machine-specific sub-specs. The "suffix" should be
915 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
916 The corresponding spec is stored in asm_spec, etc.,
917 rather than in the `compilers' vector.
919 Anything invalid in the file is a fatal error. */
922 read_specs (filename)
931 fprintf (stderr, "Reading specs from %s\n", filename);
933 /* Open and stat the file. */
934 desc = open (filename, 0, 0);
936 pfatal_with_name (filename);
937 if (stat (filename, &statbuf) < 0)
938 pfatal_with_name (filename);
940 /* Read contents of file into BUFFER. */
941 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
942 read (desc, buffer, (unsigned) statbuf.st_size);
943 buffer[statbuf.st_size] = 0;
946 /* Scan BUFFER for specs, putting them in the vector. */
952 char *in, *out, *p1, *p2;
954 /* Advance P in BUFFER to the next nonblank nocomment line. */
955 p = skip_whitespace (p);
959 /* Find the colon that should end the suffix. */
961 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
962 /* The colon shouldn't be missing. */
964 fatal ("specs file malformed after %d characters", p1 - buffer);
965 /* Skip back over trailing whitespace. */
967 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
968 /* Copy the suffix to a string. */
969 suffix = save_string (p, p2 - p);
970 /* Find the next line. */
971 p = skip_whitespace (p1 + 1);
973 fatal ("specs file malformed after %d characters", p - buffer);
975 /* Find next blank line. */
976 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
977 /* Specs end at the blank line and do not include the newline. */
978 spec = save_string (p, p1 - p);
981 /* Delete backslash-newline sequences from the spec. */
986 if (in[0] == '\\' && in[1] == '\n')
988 else if (in[0] == '#')
990 while (*in && *in != '\n') in++;
997 if (suffix[0] == '*')
999 if (! strcmp (suffix, "*link_command"))
1000 link_command_spec = spec;
1002 set_spec (suffix + 1, spec);
1006 /* Add this pair to the vector. */
1008 = ((struct compiler *)
1009 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1010 compilers[n_compilers].suffix = suffix;
1011 bzero (compilers[n_compilers].spec,
1012 sizeof compilers[n_compilers].spec);
1013 compilers[n_compilers].spec[0] = spec;
1015 bzero (&compilers[n_compilers], sizeof compilers[n_compilers]);
1019 link_command_spec = spec;
1022 if (link_command_spec == 0)
1023 fatal ("spec file has no spec for linking");
1032 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1033 be considered whitespace. */
1034 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1036 else if (*p == '\n' || *p == ' ' || *p == '\t')
1040 while (*p != '\n') p++;
1050 /* Structure to keep track of the specs that have been defined so far. These
1051 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1055 char *name; /* Name of the spec. */
1056 char *spec; /* The spec itself. */
1057 struct spec_list *next; /* Next spec in linked list. */
1060 /* List of specs that have been defined so far. */
1062 static struct spec_list *specs = (struct spec_list *) 0;
1064 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1065 removed; If the spec starts with a + then SPEC is added to the end of the
1069 set_spec (name, spec)
1073 struct spec_list *sl;
1076 /* See if the spec already exists */
1077 for (sl = specs; sl; sl = sl->next)
1078 if (strcmp (sl->name, name) == 0)
1083 /* Not found - make it */
1084 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1085 sl->name = save_string (name, strlen (name));
1086 sl->spec = save_string ("", 0);
1091 old_spec = sl->spec;
1092 if (name && spec[0] == '+' && isspace (spec[1]))
1093 sl->spec = concat (old_spec, spec + 1, "");
1095 sl->spec = save_string (spec, strlen (spec));
1097 if (! strcmp (name, "asm"))
1098 asm_spec = sl->spec;
1099 else if (! strcmp (name, "asm_final"))
1100 asm_final_spec = sl->spec;
1101 else if (! strcmp (name, "cc1"))
1102 cc1_spec = sl->spec;
1103 else if (! strcmp (name, "cc1plus"))
1104 cc1plus_spec = sl->spec;
1105 else if (! strcmp (name, "cpp"))
1106 cpp_spec = sl->spec;
1107 else if (! strcmp (name, "endfile"))
1108 endfile_spec = sl->spec;
1109 else if (! strcmp (name, "lib"))
1110 lib_spec = sl->spec;
1111 else if (! strcmp (name, "link"))
1112 link_spec = sl->spec;
1113 else if (! strcmp (name, "predefines"))
1114 cpp_predefines = sl->spec;
1115 else if (! strcmp (name, "signed_char"))
1116 signed_char_spec = sl->spec;
1117 else if (! strcmp (name, "startfile"))
1118 startfile_spec = sl->spec;
1119 else if (! strcmp (name, "switches_need_spaces"))
1120 switches_need_spaces = sl->spec;
1121 else if (! strcmp (name, "cross_compile"))
1122 cross_compile = atoi (sl->spec);
1123 /* Free the old spec */
1128 /* Accumulate a command (program name and args), and run it. */
1130 /* Vector of pointers to arguments in the current line of specifications. */
1132 static char **argbuf;
1134 /* Number of elements allocated in argbuf. */
1136 static int argbuf_length;
1138 /* Number of elements in argbuf currently in use (containing args). */
1140 static int argbuf_index;
1142 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1143 temp file. Used only if MKTEMP_EACH_FILE. */
1145 static struct temp_name {
1146 char *suffix; /* suffix associated with the code. */
1147 int length; /* strlen (suffix). */
1148 int unique; /* Indicates whether %g or %u/%U was used. */
1149 char *filename; /* associated filename. */
1150 int filename_length; /* strlen (filename). */
1151 struct temp_name *next;
1154 /* Number of commands executed so far. */
1156 static int execution_count;
1158 /* Number of commands that exited with a signal. */
1160 static int signal_count;
1162 /* Name with which this program was invoked. */
1164 static char *programname;
1166 /* Structures to keep track of prefixes to try when looking for files. */
1170 char *prefix; /* String to prepend to the path. */
1171 struct prefix_list *next; /* Next in linked list. */
1172 int require_machine_suffix; /* Don't use without machine_suffix. */
1173 /* 2 means try both machine_suffix and just_machine_suffix. */
1174 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1179 struct prefix_list *plist; /* List of prefixes to try */
1180 int max_len; /* Max length of a prefix in PLIST */
1181 char *name; /* Name of this list (used in config stuff) */
1184 /* List of prefixes to try when looking for executables. */
1186 static struct path_prefix exec_prefix = { 0, 0, "exec" };
1188 /* List of prefixes to try when looking for startup (crt0) files. */
1190 static struct path_prefix startfile_prefix = { 0, 0, "startfile" };
1192 /* List of prefixes to try when looking for include files. */
1194 static struct path_prefix include_prefix = { 0, 0, "include" };
1196 /* Suffix to attach to directories searched for commands.
1197 This looks like `MACHINE/VERSION/'. */
1199 static char *machine_suffix = 0;
1201 /* Suffix to attach to directories searched for commands.
1202 This is just `MACHINE/'. */
1204 static char *just_machine_suffix = 0;
1206 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1208 static char *gcc_exec_prefix;
1210 /* Default prefixes to attach to command names. */
1212 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1213 #undef MD_EXEC_PREFIX
1214 #undef MD_STARTFILE_PREFIX
1215 #undef MD_STARTFILE_PREFIX_1
1218 #ifndef STANDARD_EXEC_PREFIX
1219 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1220 #endif /* !defined STANDARD_EXEC_PREFIX */
1222 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1223 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1224 #ifdef MD_EXEC_PREFIX
1225 static char *md_exec_prefix = MD_EXEC_PREFIX;
1228 #ifndef STANDARD_STARTFILE_PREFIX
1229 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1230 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1232 #ifdef MD_STARTFILE_PREFIX
1233 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1235 #ifdef MD_STARTFILE_PREFIX_1
1236 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1238 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1239 static char *standard_startfile_prefix_1 = "/lib/";
1240 static char *standard_startfile_prefix_2 = "/usr/lib/";
1242 #ifndef TOOLDIR_BASE_PREFIX
1243 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1245 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1246 static char *tooldir_prefix;
1248 /* Clear out the vector of arguments (after a command is executed). */
1256 /* Add one argument to the vector at the end.
1257 This is done when a space is seen or at the end of the line.
1258 If DELETE_ALWAYS is nonzero, the arg is a filename
1259 and the file should be deleted eventually.
1260 If DELETE_FAILURE is nonzero, the arg is a filename
1261 and the file should be deleted if this compilation fails. */
1264 store_arg (arg, delete_always, delete_failure)
1266 int delete_always, delete_failure;
1268 if (argbuf_index + 1 == argbuf_length)
1270 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1273 argbuf[argbuf_index++] = arg;
1274 argbuf[argbuf_index] = 0;
1276 if (delete_always || delete_failure)
1277 record_temp_file (arg, delete_always, delete_failure);
1280 /* Record the names of temporary files we tell compilers to write,
1281 and delete them at the end of the run. */
1283 /* This is the common prefix we use to make temp file names.
1284 It is chosen once for each run of this program.
1285 It is substituted into a spec by %g.
1286 Thus, all temp file names contain this prefix.
1287 In practice, all temp file names start with this prefix.
1289 This prefix comes from the envvar TMPDIR if it is defined;
1290 otherwise, from the P_tmpdir macro if that is defined;
1291 otherwise, in /usr/tmp or /tmp. */
1293 static char *temp_filename;
1295 /* Length of the prefix. */
1297 static int temp_filename_length;
1299 /* Define the list of temporary files to delete. */
1304 struct temp_file *next;
1307 /* Queue of files to delete on success or failure of compilation. */
1308 static struct temp_file *always_delete_queue;
1309 /* Queue of files to delete on failure of compilation. */
1310 static struct temp_file *failure_delete_queue;
1312 /* Record FILENAME as a file to be deleted automatically.
1313 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1314 otherwise delete it in any case.
1315 FAIL_DELETE nonzero means delete it if a compilation step fails;
1316 otherwise delete it in any case. */
1319 record_temp_file (filename, always_delete, fail_delete)
1324 register char *name;
1325 name = xmalloc (strlen (filename) + 1);
1326 strcpy (name, filename);
1330 register struct temp_file *temp;
1331 for (temp = always_delete_queue; temp; temp = temp->next)
1332 if (! strcmp (name, temp->name))
1334 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1335 temp->next = always_delete_queue;
1337 always_delete_queue = temp;
1343 register struct temp_file *temp;
1344 for (temp = failure_delete_queue; temp; temp = temp->next)
1345 if (! strcmp (name, temp->name))
1347 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1348 temp->next = failure_delete_queue;
1350 failure_delete_queue = temp;
1355 /* Delete all the temporary files whose names we previously recorded. */
1358 delete_temp_files ()
1360 register struct temp_file *temp;
1362 for (temp = always_delete_queue; temp; temp = temp->next)
1366 printf ("Delete %s? (y or n) ", temp->name);
1370 while (getchar () != '\n') ;
1371 if (i == 'y' || i == 'Y')
1375 if (stat (temp->name, &st) >= 0)
1377 /* Delete only ordinary files. */
1378 if (S_ISREG (st.st_mode))
1379 if (unlink (temp->name) < 0)
1381 perror_with_name (temp->name);
1386 always_delete_queue = 0;
1389 /* Delete all the files to be deleted on error. */
1392 delete_failure_queue ()
1394 register struct temp_file *temp;
1396 for (temp = failure_delete_queue; temp; temp = temp->next)
1400 printf ("Delete %s? (y or n) ", temp->name);
1404 while (getchar () != '\n') ;
1405 if (i == 'y' || i == 'Y')
1408 if (unlink (temp->name) < 0)
1410 perror_with_name (temp->name);
1416 clear_failure_queue ()
1418 failure_delete_queue = 0;
1421 /* Compute a string to use as the base of all temporary file names.
1422 It is substituted for %g. */
1425 choose_temp_base_try (try, base)
1432 else if (try == (char *)0)
1434 else if (access (try, R_OK | W_OK) != 0)
1447 base = choose_temp_base_try (getenv ("TMPDIR"), base);
1448 base = choose_temp_base_try (getenv ("TMP"), base);
1449 base = choose_temp_base_try (getenv ("TEMP"), base);
1452 base = choose_temp_base_try (P_tmpdir, base);
1455 base = choose_temp_base_try ("/usr/tmp", base);
1456 base = choose_temp_base_try ("/tmp", base);
1458 /* If all else fails, use the current directory! */
1459 if (base == (char *)0)
1462 len = strlen (base);
1463 temp_filename = xmalloc (len + sizeof("/ccXXXXXX") + 1);
1464 strcpy (temp_filename, base);
1465 if (len > 0 && temp_filename[len-1] != '/')
1466 temp_filename[len++] = '/';
1467 strcpy (temp_filename + len, "ccXXXXXX");
1469 mktemp (temp_filename);
1470 temp_filename_length = strlen (temp_filename);
1471 if (temp_filename_length == 0)
1476 /* Routine to add variables to the environment. We do this to pass
1477 the pathname of the gcc driver, and the directories search to the
1478 collect2 program, which is being run as ld. This way, we can be
1479 sure of executing the right compiler when collect2 wants to build
1480 constructors and destructors. Since the environment variables we
1481 use come from an obstack, we don't have to worry about allocating
1490 #ifndef VMS /* nor about VMS */
1492 extern char **environ;
1493 char **old_environ = environ;
1497 int str_len = strlen (str);
1501 while ((ch = *p++) != '\0' && ch != '=')
1507 /* Search for replacing an existing environment variable, and
1508 count the number of total environment variables. */
1509 for (envp = old_environ; *envp; envp++)
1512 if (!strncmp (str, *envp, name_len))
1519 /* Add a new environment variable */
1520 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1522 bcopy (old_environ, environ+1, sizeof (char *) * (num_envs+1));
1527 #endif /* HAVE_PUTENV */
1530 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1533 putenv_from_prefixes (paths, env_var)
1534 struct path_prefix *paths;
1537 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1539 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1540 int first_time = TRUE;
1541 struct prefix_list *pprefix;
1543 obstack_grow (&collect_obstack, env_var, strlen (env_var));
1545 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1547 int len = strlen (pprefix->prefix);
1550 && is_directory (pprefix->prefix, machine_suffix, 0))
1553 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1556 obstack_grow (&collect_obstack, pprefix->prefix, len);
1557 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1560 if (just_machine_suffix
1561 && pprefix->require_machine_suffix == 2
1562 && is_directory (pprefix->prefix, just_machine_suffix, 0))
1565 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1568 obstack_grow (&collect_obstack, pprefix->prefix, len);
1569 obstack_grow (&collect_obstack, just_machine_suffix,
1573 if (!pprefix->require_machine_suffix)
1576 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1579 obstack_grow (&collect_obstack, pprefix->prefix, len);
1582 obstack_1grow (&collect_obstack, '\0');
1583 putenv (obstack_finish (&collect_obstack));
1587 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1588 access to check permissions.
1589 Return 0 if not found, otherwise return its name, allocated with malloc. */
1592 find_a_file (pprefix, name, mode)
1593 struct path_prefix *pprefix;
1598 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1599 struct prefix_list *pl;
1600 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1603 len += strlen (machine_suffix);
1605 temp = xmalloc (len);
1607 /* Determine the filename to execute (special case for absolute paths). */
1611 if (access (name, mode))
1613 strcpy (temp, name);
1618 for (pl = pprefix->plist; pl; pl = pl->next)
1622 strcpy (temp, pl->prefix);
1623 strcat (temp, machine_suffix);
1624 strcat (temp, name);
1625 if (access (temp, mode) == 0)
1627 if (pl->used_flag_ptr != 0)
1628 *pl->used_flag_ptr = 1;
1631 /* Some systems have a suffix for executable files.
1632 So try appending that. */
1633 if (file_suffix[0] != 0)
1635 strcat (temp, file_suffix);
1636 if (access (temp, mode) == 0)
1638 if (pl->used_flag_ptr != 0)
1639 *pl->used_flag_ptr = 1;
1644 /* Certain prefixes are tried with just the machine type,
1645 not the version. This is used for finding as, ld, etc. */
1646 if (just_machine_suffix && pl->require_machine_suffix == 2)
1648 strcpy (temp, pl->prefix);
1649 strcat (temp, just_machine_suffix);
1650 strcat (temp, name);
1651 if (access (temp, mode) == 0)
1653 if (pl->used_flag_ptr != 0)
1654 *pl->used_flag_ptr = 1;
1657 /* Some systems have a suffix for executable files.
1658 So try appending that. */
1659 if (file_suffix[0] != 0)
1661 strcat (temp, file_suffix);
1662 if (access (temp, mode) == 0)
1664 if (pl->used_flag_ptr != 0)
1665 *pl->used_flag_ptr = 1;
1670 /* Certain prefixes can't be used without the machine suffix
1671 when the machine or version is explicitly specified. */
1672 if (!pl->require_machine_suffix)
1674 strcpy (temp, pl->prefix);
1675 strcat (temp, name);
1676 if (access (temp, mode) == 0)
1678 if (pl->used_flag_ptr != 0)
1679 *pl->used_flag_ptr = 1;
1682 /* Some systems have a suffix for executable files.
1683 So try appending that. */
1684 if (file_suffix[0] != 0)
1686 strcat (temp, file_suffix);
1687 if (access (temp, mode) == 0)
1689 if (pl->used_flag_ptr != 0)
1690 *pl->used_flag_ptr = 1;
1701 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1702 at the start of the list, otherwise it goes at the end.
1704 If WARN is nonzero, we will warn if no file is found
1705 through this prefix. WARN should point to an int
1706 which will be set to 1 if this entry is used.
1708 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1709 the complete value of machine_suffix.
1710 2 means try both machine_suffix and just_machine_suffix. */
1713 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1714 struct path_prefix *pprefix;
1717 int require_machine_suffix;
1720 struct prefix_list *pl, **prev;
1723 if (!first && pprefix->plist)
1725 for (pl = pprefix->plist; pl->next; pl = pl->next)
1730 prev = &pprefix->plist;
1732 /* Keep track of the longest prefix */
1734 len = strlen (prefix);
1735 if (len > pprefix->max_len)
1736 pprefix->max_len = len;
1738 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1739 pl->prefix = save_string (prefix, len);
1740 pl->require_machine_suffix = require_machine_suffix;
1741 pl->used_flag_ptr = warn;
1748 pl->next = (struct prefix_list *) 0;
1752 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1755 unused_prefix_warnings (pprefix)
1756 struct path_prefix *pprefix;
1758 struct prefix_list *pl = pprefix->plist;
1762 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1764 error ("file path prefix `%s' never used",
1766 /* Prevent duplicate warnings. */
1767 *pl->used_flag_ptr = 1;
1773 /* Get rid of all prefixes built up so far in *PLISTP. */
1776 free_path_prefix (pprefix)
1777 struct path_prefix *pprefix;
1779 struct prefix_list *pl = pprefix->plist;
1780 struct prefix_list *temp;
1786 free (temp->prefix);
1787 free ((char *) temp);
1789 pprefix->plist = (struct prefix_list *) 0;
1792 /* stdin file number. */
1793 #define STDIN_FILE_NO 0
1795 /* stdout file number. */
1796 #define STDOUT_FILE_NO 1
1798 /* value of `pipe': port index for reading. */
1801 /* value of `pipe': port index for writing. */
1802 #define WRITE_PORT 1
1804 /* Pipe waiting from last process, to be used as input for the next one.
1805 Value is STDIN_FILE_NO if no pipe is waiting
1806 (i.e. the next command is the first of a group). */
1808 static int last_pipe_input;
1810 /* Fork one piped subcommand. FUNC is the system call to use
1811 (either execv or execvp). ARGV is the arg vector to use.
1812 NOT_LAST is nonzero if this is not the last subcommand
1813 (i.e. its output should be piped to the next one.) */
1818 /* Declare these to avoid compilation error. They won't be called. */
1819 int execv(const char *a, const char **b){}
1820 int execvp(const char *a, const char **b){}
1823 pexecute (search_flag, program, argv, not_last)
1831 int i, el = search_flag ? 0 : 4;
1833 scmd = (char *)malloc (strlen (program) + strlen (temp_filename) + 6 + el);
1834 rf = scmd + strlen(program) + 2 + el;
1835 sprintf (scmd, "%s%s @%s.gp", program,
1836 (search_flag ? "" : ".exe"), temp_filename);
1837 argfile = fopen (rf, "w");
1839 pfatal_with_name (rf);
1841 for (i=1; argv[i]; i++)
1844 for (cp = argv[i]; *cp; cp++)
1846 if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp))
1847 fputc ('\\', argfile);
1848 fputc (*cp, argfile);
1850 fputc ('\n', argfile);
1860 perror_exec (program);
1861 return MIN_FATAL_STATUS << 8;
1867 #else /* not __MSDOS__ */
1870 pexecute (search_flag, program, argv, not_last)
1876 int (*func)() = (search_flag ? execv : execvp);
1879 int input_desc = last_pipe_input;
1880 int output_desc = STDOUT_FILE_NO;
1881 int retries, sleep_interval;
1883 /* If this isn't the last process, make a pipe for its output,
1884 and record it as waiting to be the input to the next process. */
1888 if (pipe (pdes) < 0)
1889 pfatal_with_name ("pipe");
1890 output_desc = pdes[WRITE_PORT];
1891 last_pipe_input = pdes[READ_PORT];
1894 last_pipe_input = STDIN_FILE_NO;
1896 /* Fork a subprocess; wait and retry if it fails. */
1898 for (retries = 0; retries < 4; retries++)
1903 sleep (sleep_interval);
1904 sleep_interval *= 2;
1911 pfatal_with_name ("fork");
1913 pfatal_with_name ("vfork");
1919 /* Move the input and output pipes into place, if nec. */
1920 if (input_desc != STDIN_FILE_NO)
1922 close (STDIN_FILE_NO);
1926 if (output_desc != STDOUT_FILE_NO)
1928 close (STDOUT_FILE_NO);
1930 close (output_desc);
1933 /* Close the parent's descs that aren't wanted here. */
1934 if (last_pipe_input != STDIN_FILE_NO)
1935 close (last_pipe_input);
1937 /* Exec the program. */
1938 (*func) (program, argv);
1939 perror_exec (program);
1945 /* In the parent, after forking.
1946 Close the descriptors that we made for this child. */
1947 if (input_desc != STDIN_FILE_NO)
1949 if (output_desc != STDOUT_FILE_NO)
1950 close (output_desc);
1952 /* Return child's process number. */
1957 #endif /* not __MSDOS__ */
1961 pexecute (search_flag, program, argv, not_last)
1967 return (search_flag ? spawnv : spawnvp) (1, program, argv);
1969 #endif /* not OS2 */
1971 /* Execute the command specified by the arguments on the current line of spec.
1972 When using pipes, this includes several piped-together commands
1973 with `|' between them.
1975 Return 0 if successful, -1 if failed. */
1981 int n_commands; /* # of command. */
1985 char *prog; /* program name. */
1986 char **argv; /* vector of args. */
1987 int pid; /* pid of process for this command. */
1990 struct command *commands; /* each command buffer with above info. */
1992 /* Count # of piped commands. */
1993 for (n_commands = 1, i = 0; i < argbuf_index; i++)
1994 if (strcmp (argbuf[i], "|") == 0)
1997 /* Get storage for each command. */
1999 = (struct command *) alloca (n_commands * sizeof (struct command));
2001 /* Split argbuf into its separate piped processes,
2002 and record info about each one.
2003 Also search for the programs that are to be run. */
2005 commands[0].prog = argbuf[0]; /* first command. */
2006 commands[0].argv = &argbuf[0];
2007 string = find_a_file (&exec_prefix, commands[0].prog, X_OK);
2009 commands[0].argv[0] = string;
2011 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2012 if (strcmp (argbuf[i], "|") == 0)
2013 { /* each command. */
2015 fatal ("-pipe not supported under MS-DOS");
2017 argbuf[i] = 0; /* termination of command args. */
2018 commands[n_commands].prog = argbuf[i + 1];
2019 commands[n_commands].argv = &argbuf[i + 1];
2020 string = find_a_file (&exec_prefix, commands[n_commands].prog, X_OK);
2022 commands[n_commands].argv[0] = string;
2026 argbuf[argbuf_index] = 0;
2028 /* If -v, print what we are about to do, and maybe query. */
2032 /* Print each piped command as a separate line. */
2033 for (i = 0; i < n_commands ; i++)
2037 for (j = commands[i].argv; *j; j++)
2038 fprintf (stderr, " %s", *j);
2040 /* Print a pipe symbol after all but the last command. */
2041 if (i + 1 != n_commands)
2042 fprintf (stderr, " |");
2043 fprintf (stderr, "\n");
2047 fprintf (stderr, "\nGo ahead? (y or n) ");
2051 while (getchar () != '\n') ;
2052 if (i != 'y' && i != 'Y')
2057 /* Run each piped subprocess. */
2059 last_pipe_input = STDIN_FILE_NO;
2060 for (i = 0; i < n_commands; i++)
2062 char *string = commands[i].argv[0];
2064 commands[i].pid = pexecute (string != commands[i].prog,
2065 string, commands[i].argv,
2066 i + 1 < n_commands);
2068 if (string != commands[i].prog)
2074 /* Wait for all the subprocesses to finish.
2075 We don't care what order they finish in;
2076 we know that N_COMMANDS waits will get them all. */
2081 for (i = 0; i < n_commands; i++)
2085 char *prog = "unknown";
2088 status = pid = commands[i].pid;
2090 pid = wait (&status);
2098 for (j = 0; j < n_commands; j++)
2099 if (commands[j].pid == pid)
2100 prog = commands[j].prog;
2102 if ((status & 0x7F) != 0)
2104 fatal ("Internal compiler error: program %s got fatal signal %d",
2105 prog, (status & 0x7F));
2108 if (((status & 0xFF00) >> 8) >= MIN_FATAL_STATUS)
2116 /* Find all the switches given to us
2117 and make a vector describing them.
2118 The elements of the vector are strings, one per switch given.
2119 If a switch uses following arguments, then the `part1' field
2120 is the switch itself and the `args' field
2121 is a null-terminated vector containing the following arguments.
2122 The `live_cond' field is 1 if the switch is true in a conditional spec,
2123 -1 if false (overridden by a later switch), and is initialized to zero.
2124 The `valid' field is nonzero if any spec has looked at this switch;
2125 if it remains zero at the end of the run, it must be meaningless. */
2135 static struct switchstr *switches;
2137 static int n_switches;
2145 /* Also a vector of input files specified. */
2147 static struct infile *infiles;
2149 static int n_infiles;
2151 /* And a vector of corresponding output files is made up later. */
2153 static char **outfiles;
2155 /* Create the vector `switches' and its contents.
2156 Store its length in `n_switches'. */
2159 process_command (argc, argv)
2165 char *spec_lang = 0;
2166 int last_language_n_infiles;
2168 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2173 /* Figure compiler version from version string. */
2175 compiler_version = save_string (version_string, strlen (version_string));
2176 for (temp = compiler_version; *temp; ++temp)
2185 /* Set up the default search paths. */
2187 if (gcc_exec_prefix)
2189 add_prefix (&exec_prefix, gcc_exec_prefix, 0, 0, NULL_PTR);
2190 add_prefix (&startfile_prefix, gcc_exec_prefix, 0, 0, NULL_PTR);
2193 /* COMPILER_PATH and LIBRARY_PATH have values
2194 that are lists of directory names with colons. */
2196 temp = getenv ("COMPILER_PATH");
2199 char *startp, *endp;
2200 char *nstore = (char *) alloca (strlen (temp) + 3);
2202 startp = endp = temp;
2205 if (*endp == PATH_SEPARATOR || *endp == 0)
2207 strncpy (nstore, startp, endp-startp);
2210 strcpy (nstore, "./");
2212 else if (endp[-1] != '/')
2214 nstore[endp-startp] = '/';
2215 nstore[endp-startp+1] = 0;
2218 nstore[endp-startp] = 0;
2219 add_prefix (&exec_prefix, nstore, 0, 0, NULL_PTR);
2222 endp = startp = endp + 1;
2229 temp = getenv ("LIBRARY_PATH");
2232 char *startp, *endp;
2233 char *nstore = (char *) alloca (strlen (temp) + 3);
2235 startp = endp = temp;
2238 if (*endp == PATH_SEPARATOR || *endp == 0)
2240 strncpy (nstore, startp, endp-startp);
2243 strcpy (nstore, "./");
2245 else if (endp[-1] != '/')
2247 nstore[endp-startp] = '/';
2248 nstore[endp-startp+1] = 0;
2251 nstore[endp-startp] = 0;
2252 add_prefix (&startfile_prefix, nstore, 0, 0, NULL_PTR);
2255 endp = startp = endp + 1;
2262 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2263 temp = getenv ("LPATH");
2266 char *startp, *endp;
2267 char *nstore = (char *) alloca (strlen (temp) + 3);
2269 startp = endp = temp;
2272 if (*endp == PATH_SEPARATOR || *endp == 0)
2274 strncpy (nstore, startp, endp-startp);
2277 strcpy (nstore, "./");
2279 else if (endp[-1] != '/')
2281 nstore[endp-startp] = '/';
2282 nstore[endp-startp+1] = 0;
2285 nstore[endp-startp] = 0;
2286 add_prefix (&startfile_prefix, nstore, 0, 0, NULL_PTR);
2289 endp = startp = endp + 1;
2296 /* Convert new-style -- options to old-style. */
2297 translate_options (&argc, &argv);
2299 /* Scan argv twice. Here, the first time, just count how many switches
2300 there will be in their vector, and how many input files in theirs.
2301 Here we also parse the switches that cc itself uses (e.g. -v). */
2303 for (i = 1; i < argc; i++)
2305 if (! strcmp (argv[i], "-dumpspecs"))
2307 printf ("*asm:\n%s\n\n", asm_spec);
2308 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2309 printf ("*cpp:\n%s\n\n", cpp_spec);
2310 printf ("*cc1:\n%s\n\n", cc1_spec);
2311 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2312 printf ("*endfile:\n%s\n\n", endfile_spec);
2313 printf ("*link:\n%s\n\n", link_spec);
2314 printf ("*lib:\n%s\n\n", lib_spec);
2315 printf ("*startfile:\n%s\n\n", startfile_spec);
2316 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2317 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2318 printf ("*predefines:\n%s\n\n", cpp_predefines);
2319 printf ("*cross_compile:\n%d\n\n", cross_compile);
2323 else if (! strcmp (argv[i], "-dumpversion"))
2325 printf ("%s\n", version_string);
2328 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2330 print_libgcc_file_name = 1;
2332 else if (! strcmp (argv[i], "-Xlinker"))
2334 /* Pass the argument of this option to the linker when we link. */
2337 fatal ("argument to `-Xlinker' is missing");
2340 if (!linker_options)
2342 = (char **) xmalloc (n_linker_options * sizeof (char **));
2345 = (char **) xrealloc (linker_options,
2346 n_linker_options * sizeof (char **));
2348 linker_options[n_linker_options - 1] = argv[++i];
2350 else if (! strncmp (argv[i], "-Wl,", 4))
2353 /* Pass the rest of this option to the linker when we link. */
2356 if (!linker_options)
2358 = (char **) xmalloc (n_linker_options * sizeof (char **));
2361 = (char **) xrealloc (linker_options,
2362 n_linker_options * sizeof (char **));
2364 /* Split the argument at commas. */
2366 for (j = 4; argv[i][j]; j++)
2367 if (argv[i][j] == ',')
2369 linker_options[n_linker_options - 1]
2370 = save_string (argv[i] + prev, j - prev);
2373 = (char **) xrealloc (linker_options,
2374 n_linker_options * sizeof (char **));
2377 /* Record the part after the last comma. */
2378 linker_options[n_linker_options - 1] = argv[i] + prev;
2380 else if (! strncmp (argv[i], "-Wa,", 4))
2383 /* Pass the rest of this option to the assembler. */
2385 n_assembler_options++;
2386 if (!assembler_options)
2388 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2391 = (char **) xrealloc (assembler_options,
2392 n_assembler_options * sizeof (char **));
2394 /* Split the argument at commas. */
2396 for (j = 4; argv[i][j]; j++)
2397 if (argv[i][j] == ',')
2399 assembler_options[n_assembler_options - 1]
2400 = save_string (argv[i] + prev, j - prev);
2401 n_assembler_options++;
2403 = (char **) xrealloc (assembler_options,
2404 n_assembler_options * sizeof (char **));
2407 /* Record the part after the last comma. */
2408 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2410 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2411 /* The +e options to the C++ front-end. */
2413 else if (argv[i][0] == '-' && argv[i][1] != 0 && argv[i][1] != 'l')
2415 register char *p = &argv[i][1];
2416 register int c = *p;
2421 if (p[1] == 0 && i + 1 == argc)
2422 fatal ("argument to `-b' is missing");
2424 spec_machine = argv[++i];
2426 spec_machine = p + 1;
2431 int *temp = (int *) xmalloc (sizeof (int));
2433 if (p[1] == 0 && i + 1 == argc)
2434 fatal ("argument to `-B' is missing");
2439 add_prefix (&exec_prefix, value, 1, 0, temp);
2440 add_prefix (&startfile_prefix, value, 1, 0, temp);
2441 add_prefix (&include_prefix, concat (value, "include", ""),
2444 /* As a kludge, if the arg is "[foo/]stageN/", just add
2445 "include" to the include prefix. */
2447 int len = strlen (value);
2448 if ((len == 7 || (len > 7 && value[len - 8] == '/'))
2449 && strncmp (value + len - 7, "stage", 5) == 0
2450 && isdigit (value[len - 2])
2451 && value[len - 1] == '/')
2452 add_prefix (&include_prefix, "include", 1, 0, 0);
2457 case 'v': /* Print our subcommands and print versions. */
2459 /* If they do anything other than exactly `-v', don't set
2460 verbose_flag; rather, continue on to give the error. */
2467 if (p[1] == 0 && i + 1 == argc)
2468 fatal ("argument to `-V' is missing");
2470 spec_version = argv[++i];
2472 spec_version = p + 1;
2473 compiler_version = spec_version;
2477 if (!strcmp (p, "save-temps"))
2479 save_temps_flag = 1;
2486 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2487 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2488 else if (WORD_SWITCH_TAKES_ARG (p))
2489 i += WORD_SWITCH_TAKES_ARG (p);
2496 /* Set up the search paths before we go looking for config files. */
2498 /* These come before the md prefixes so that we will find gcc's subcommands
2499 (such as cpp) rather than those of the host system. */
2500 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2501 as well as trying the machine and the version. */
2502 add_prefix (&exec_prefix, standard_exec_prefix, 0, 2, NULL_PTR);
2503 add_prefix (&exec_prefix, standard_exec_prefix_1, 0, 2, NULL_PTR);
2505 add_prefix (&startfile_prefix, standard_exec_prefix, 0, 1, NULL_PTR);
2506 add_prefix (&startfile_prefix, standard_exec_prefix_1, 0, 1, NULL_PTR);
2508 tooldir_prefix = concat (tooldir_base_prefix, spec_machine, "/");
2510 /* If tooldir is relative, base it on exec_prefix. A relative
2511 tooldir lets us move the installed tree as a unit.
2513 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2514 directories, so that we can search both the user specified directory
2515 and the standard place. */
2517 if (*tooldir_prefix != '/')
2519 if (gcc_exec_prefix)
2521 char *gcc_exec_tooldir_prefix
2522 = concat (concat (gcc_exec_prefix, spec_machine, "/"),
2523 concat (spec_version, "/", tooldir_prefix),
2526 add_prefix (&exec_prefix, concat (gcc_exec_tooldir_prefix, "bin", "/"),
2528 add_prefix (&startfile_prefix, concat (gcc_exec_tooldir_prefix, "lib", "/"),
2532 tooldir_prefix = concat (concat (standard_exec_prefix, spec_machine, "/"),
2533 concat (spec_version, "/", tooldir_prefix),
2537 add_prefix (&exec_prefix, concat (tooldir_prefix, "bin", "/"),
2539 add_prefix (&startfile_prefix, concat (tooldir_prefix, "lib", "/"),
2542 /* More prefixes are enabled in main, after we read the specs file
2543 and determine whether this is cross-compilation or not. */
2546 /* Then create the space for the vectors and scan again. */
2548 switches = ((struct switchstr *)
2549 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2550 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2553 last_language_n_infiles = -1;
2555 /* This, time, copy the text of each switch and store a pointer
2556 to the copy in the vector of switches.
2557 Store all the infiles in their vector. */
2559 for (i = 1; i < argc; i++)
2561 /* Just skip the switches that were handled by the preceding loop. */
2562 if (!strcmp (argv[i], "-Xlinker"))
2564 else if (! strncmp (argv[i], "-Wl,", 4))
2566 else if (! strncmp (argv[i], "-Wa,", 4))
2568 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2570 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2572 /* Compensate for the +e options to the C++ front-end;
2573 they're there simply for cfront call-compatibility. We do
2574 some magic in default_compilers to pass them down properly.
2575 Note we deliberately start at the `+' here, to avoid passing
2576 -e0 or -e1 down into the linker. */
2577 switches[n_switches].part1 = &argv[i][0];
2578 switches[n_switches].args = 0;
2579 switches[n_switches].live_cond = 0;
2580 switches[n_switches].valid = 0;
2583 else if (argv[i][0] == '-' && argv[i][1] != 0 && argv[i][1] != 'l')
2585 register char *p = &argv[i][1];
2586 register int c = *p;
2588 if (c == 'B' || c == 'b' || c == 'V')
2590 /* Skip a separate arg, if any. */
2597 if (p[1] == 0 && i + 1 == argc)
2598 fatal ("argument to `-x' is missing");
2600 spec_lang = argv[++i];
2603 if (! strcmp (spec_lang, "none"))
2604 /* Suppress the warning if -xnone comes after the last input file,
2605 because alternate command interfaces like g++ might find it
2606 useful to place -xnone after each input file. */
2609 last_language_n_infiles = n_infiles;
2612 switches[n_switches].part1 = p;
2613 /* Deal with option arguments in separate argv elements. */
2614 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2615 || WORD_SWITCH_TAKES_ARG (p))
2618 int n_args = WORD_SWITCH_TAKES_ARG (p);
2622 /* Count only the option arguments in separate argv elements. */
2623 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2625 if (i + n_args >= argc)
2626 fatal ("argument to `-%s' is missing", p);
2627 switches[n_switches].args
2628 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2630 switches[n_switches].args[j++] = argv[++i];
2631 /* Null-terminate the vector. */
2632 switches[n_switches].args[j] = 0;
2634 else if (*switches_need_spaces != 0 && (c == 'o' || c == 'L'))
2636 /* On some systems, ld cannot handle -o or -L without space.
2637 So split the -o or -L from its argument. */
2638 switches[n_switches].part1 = (c == 'o' ? "o" : "L");
2639 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2640 switches[n_switches].args[0] = xmalloc (strlen (p));
2641 strcpy (switches[n_switches].args[0], &p[1]);
2642 switches[n_switches].args[1] = 0;
2645 switches[n_switches].args = 0;
2647 switches[n_switches].live_cond = 0;
2648 switches[n_switches].valid = 0;
2649 /* This is always valid, since gcc.c itself understands it. */
2650 if (!strcmp (p, "save-temps"))
2651 switches[n_switches].valid = 1;
2656 if ((argv[i][0] != '-' || argv[i][1] != 'l')
2657 && strcmp (argv[i], "-")
2658 && access (argv[i], R_OK) < 0)
2660 perror_with_name (argv[i]);
2665 infiles[n_infiles].language = spec_lang;
2666 infiles[n_infiles++].name = argv[i];
2671 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2672 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2674 switches[n_switches].part1 = 0;
2675 infiles[n_infiles].name = 0;
2677 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
2678 if (gcc_exec_prefix)
2680 temp = (char *) xmalloc (strlen (gcc_exec_prefix) + strlen (spec_version)
2681 + strlen (spec_machine) + 3);
2682 strcpy (temp, gcc_exec_prefix);
2683 strcat (temp, spec_machine);
2685 strcat (temp, spec_version);
2687 gcc_exec_prefix = temp;
2691 /* Process a spec string, accumulating and running commands. */
2693 /* These variables describe the input file name.
2694 input_file_number is the index on outfiles of this file,
2695 so that the output file name can be stored for later use by %o.
2696 input_basename is the start of the part of the input file
2697 sans all directory names, and basename_length is the number
2698 of characters starting there excluding the suffix .c or whatever. */
2700 static char *input_filename;
2701 static int input_file_number;
2702 static int input_filename_length;
2703 static int basename_length;
2704 static char *input_basename;
2705 static char *input_suffix;
2707 /* These are variables used within do_spec and do_spec_1. */
2709 /* Nonzero if an arg has been started and not yet terminated
2710 (with space, tab or newline). */
2711 static int arg_going;
2713 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2714 is a temporary file name. */
2715 static int delete_this_arg;
2717 /* Nonzero means %w has been seen; the next arg to be terminated
2718 is the output file name of this compilation. */
2719 static int this_is_output_file;
2721 /* Nonzero means %s has been seen; the next arg to be terminated
2722 is the name of a library file and we should try the standard
2723 search dirs for it. */
2724 static int this_is_library_file;
2726 /* Nonzero means that the input of this command is coming from a pipe. */
2727 static int input_from_pipe;
2729 /* Process the spec SPEC and run the commands specified therein.
2730 Returns 0 if the spec is successfully processed; -1 if failed. */
2740 delete_this_arg = 0;
2741 this_is_output_file = 0;
2742 this_is_library_file = 0;
2743 input_from_pipe = 0;
2745 value = do_spec_1 (spec, 0, NULL_PTR);
2747 /* Force out any unfinished command.
2748 If -pipe, this forces out the last command if it ended in `|'. */
2751 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2754 if (argbuf_index > 0)
2761 /* Process the sub-spec SPEC as a portion of a larger spec.
2762 This is like processing a whole spec except that we do
2763 not initialize at the beginning and we do not supply a
2764 newline by default at the end.
2765 INSWITCH nonzero means don't process %-sequences in SPEC;
2766 in this case, % is treated as an ordinary character.
2767 This is used while substituting switches.
2768 INSWITCH nonzero also causes SPC not to terminate an argument.
2770 Value is zero unless a line was finished
2771 and the command on that line reported an error. */
2774 do_spec_1 (spec, inswitch, soft_matched_part)
2777 char *soft_matched_part;
2779 register char *p = spec;
2786 /* If substituting a switch, treat all chars like letters.
2787 Otherwise, NL, SPC, TAB and % are special. */
2788 switch (inswitch ? 'a' : c)
2791 /* End of line: finish any pending argument,
2792 then run the pending command if one has been started. */
2795 obstack_1grow (&obstack, 0);
2796 string = obstack_finish (&obstack);
2797 if (this_is_library_file)
2798 string = find_file (string);
2799 store_arg (string, delete_this_arg, this_is_output_file);
2800 if (this_is_output_file)
2801 outfiles[input_file_number] = string;
2805 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2808 for (i = 0; i < n_switches; i++)
2809 if (!strcmp (switches[i].part1, "pipe"))
2812 /* A `|' before the newline means use a pipe here,
2813 but only if -pipe was specified.
2814 Otherwise, execute now and don't pass the `|' as an arg. */
2817 input_from_pipe = 1;
2818 switches[i].valid = 1;
2825 if (argbuf_index > 0)
2831 /* Reinitialize for a new command, and for a new argument. */
2834 delete_this_arg = 0;
2835 this_is_output_file = 0;
2836 this_is_library_file = 0;
2837 input_from_pipe = 0;
2841 /* End any pending argument. */
2844 obstack_1grow (&obstack, 0);
2845 string = obstack_finish (&obstack);
2846 if (this_is_library_file)
2847 string = find_file (string);
2848 store_arg (string, delete_this_arg, this_is_output_file);
2849 if (this_is_output_file)
2850 outfiles[input_file_number] = string;
2854 obstack_1grow (&obstack, c);
2860 /* Space or tab ends an argument if one is pending. */
2863 obstack_1grow (&obstack, 0);
2864 string = obstack_finish (&obstack);
2865 if (this_is_library_file)
2866 string = find_file (string);
2867 store_arg (string, delete_this_arg, this_is_output_file);
2868 if (this_is_output_file)
2869 outfiles[input_file_number] = string;
2871 /* Reinitialize for a new argument. */
2873 delete_this_arg = 0;
2874 this_is_output_file = 0;
2875 this_is_library_file = 0;
2882 fatal ("Invalid specification! Bug in cc.");
2885 obstack_grow (&obstack, input_basename, basename_length);
2890 delete_this_arg = 2;
2893 /* Dump out the directories specified with LIBRARY_PATH,
2894 followed by the absolute directories
2895 that we search for startfiles. */
2898 struct prefix_list *pl = startfile_prefix.plist;
2900 char *buffer = (char *) xmalloc (bufsize);
2903 for (; pl; pl = pl->next)
2905 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
2906 /* Used on systems which record the specified -L dirs
2907 and use them to search for dynamic linking. */
2908 /* Relative directories always come from -B,
2909 and it is better not to use them for searching
2910 at run time. In particular, stage1 loses */
2911 if (pl->prefix[0] != '/')
2916 if (is_directory (pl->prefix, machine_suffix, 1))
2918 do_spec_1 ("-L", 0, NULL_PTR);
2919 #ifdef SPACE_AFTER_L_OPTION
2920 do_spec_1 (" ", 0, NULL_PTR);
2922 do_spec_1 (pl->prefix, 1, NULL_PTR);
2923 /* Remove slash from machine_suffix. */
2924 if (strlen (machine_suffix) >= bufsize)
2925 bufsize = strlen (machine_suffix) * 2 + 1;
2926 buffer = (char *) xrealloc (buffer, bufsize);
2927 strcpy (buffer, machine_suffix);
2928 idx = strlen (buffer);
2929 if (buffer[idx - 1] == '/')
2930 buffer[idx - 1] = 0;
2931 do_spec_1 (buffer, 1, NULL_PTR);
2932 /* Make this a separate argument. */
2933 do_spec_1 (" ", 0, NULL_PTR);
2936 if (!pl->require_machine_suffix)
2938 if (is_directory (pl->prefix, "", 1))
2940 do_spec_1 ("-L", 0, NULL_PTR);
2941 #ifdef SPACE_AFTER_L_OPTION
2942 do_spec_1 (" ", 0, NULL_PTR);
2944 /* Remove slash from pl->prefix. */
2945 if (strlen (pl->prefix) >= bufsize)
2946 bufsize = strlen (pl->prefix) * 2 + 1;
2947 buffer = (char *) xrealloc (buffer, bufsize);
2948 strcpy (buffer, pl->prefix);
2949 idx = strlen (buffer);
2950 if (buffer[idx - 1] == '/')
2951 buffer[idx - 1] = 0;
2952 do_spec_1 (buffer, 1, NULL_PTR);
2953 /* Make this a separate argument. */
2954 do_spec_1 (" ", 0, NULL_PTR);
2963 /* {...:%efoo} means report an error with `foo' as error message
2964 and don't execute any more commands for this file. */
2968 while (*p != 0 && *p != '\n') p++;
2969 buf = (char *) alloca (p - q + 1);
2970 strncpy (buf, q, p - q);
2980 if (save_temps_flag)
2981 obstack_grow (&obstack, input_basename, basename_length);
2984 #ifdef MKTEMP_EACH_FILE
2985 /* ??? This has a problem: the total number of
2986 values mktemp can return is limited.
2987 That matters for the names of object files.
2988 In 2.4, do something about that. */
2989 struct temp_name *t;
2991 while (*p == '.' || isalpha (*p))
2994 /* See if we already have an association of %g/%u/%U and
2996 for (t = temp_names; t; t = t->next)
2997 if (t->length == p - suffix
2998 && strncmp (t->suffix, suffix, p - suffix) == 0
2999 && t->unique == (c != 'g'))
3002 /* Make a new association if needed. %u requires one. */
3003 if (t == 0 || c == 'u')
3007 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3008 t->next = temp_names;
3011 t->length = p - suffix;
3012 t->suffix = save_string (suffix, p - suffix);
3013 t->unique = (c != 'g');
3014 choose_temp_base ();
3015 t->filename = temp_filename;
3016 t->filename_length = temp_filename_length;
3019 obstack_grow (&obstack, t->filename, t->filename_length);
3020 delete_this_arg = 1;
3022 obstack_grow (&obstack, temp_filename, temp_filename_length);
3023 if (c == 'u' || c == 'U')
3029 sprintf (buff, "%d", unique);
3030 obstack_grow (&obstack, buff, strlen (buff));
3033 delete_this_arg = 1;
3039 obstack_grow (&obstack, input_filename, input_filename_length);
3045 struct prefix_list *pl = include_prefix.plist;
3047 if (gcc_exec_prefix)
3049 do_spec_1 ("-iprefix", 1, NULL_PTR);
3050 /* Make this a separate argument. */
3051 do_spec_1 (" ", 0, NULL_PTR);
3052 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3053 do_spec_1 (" ", 0, NULL_PTR);
3056 for (; pl; pl = pl->next)
3058 do_spec_1 ("-isystem", 1, NULL_PTR);
3059 /* Make this a separate argument. */
3060 do_spec_1 (" ", 0, NULL_PTR);
3061 do_spec_1 (pl->prefix, 1, NULL_PTR);
3062 do_spec_1 (" ", 0, NULL_PTR);
3070 for (f = 0; f < n_infiles; f++)
3071 store_arg (outfiles[f], 0, 0);
3076 this_is_library_file = 1;
3080 this_is_output_file = 1;
3085 int index = argbuf_index;
3086 /* Handle the {...} following the %W. */
3089 p = handle_braces (p + 1);
3092 /* If any args were output, mark the last one for deletion
3094 if (argbuf_index != index)
3095 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3099 /* %x{OPTION} records OPTION for %X to output. */
3105 /* Skip past the option value and make a copy. */
3110 string = save_string (p1 + 1, p - p1 - 2);
3112 /* See if we already recorded this option. */
3113 for (i = 0; i < n_linker_options; i++)
3114 if (! strcmp (string, linker_options[i]))
3120 /* This option is new; add it. */
3122 if (!linker_options)
3124 = (char **) xmalloc (n_linker_options * sizeof (char **));
3127 = (char **) xrealloc (linker_options,
3128 n_linker_options * sizeof (char **));
3130 linker_options[n_linker_options - 1] = string;
3134 /* Dump out the options accumulated previously using %x,
3135 -Xlinker and -Wl,. */
3137 for (i = 0; i < n_linker_options; i++)
3139 do_spec_1 (linker_options[i], 1, NULL_PTR);
3140 /* Make each accumulated option a separate argument. */
3141 do_spec_1 (" ", 0, NULL_PTR);
3145 /* Dump out the options accumulated previously using -Wa,. */
3147 for (i = 0; i < n_assembler_options; i++)
3149 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3150 /* Make each accumulated option a separate argument. */
3151 do_spec_1 (" ", 0, NULL_PTR);
3155 /* Here are digits and numbers that just process
3156 a certain constant string as a spec. */
3159 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3165 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3171 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3177 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3183 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3189 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3195 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3201 value = do_spec_1 (link_spec, 0, NULL_PTR);
3207 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3214 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3218 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3222 if (! strncmp (y, "-D", 2))
3223 /* Copy the whole option. */
3224 while (*y && *y != ' ' && *y != '\t')
3226 else if (*y == ' ' || *y == '\t')
3227 /* Copy whitespace to the result. */
3229 /* Don't copy other options. */
3236 value = do_spec_1 (buf, 0, NULL_PTR);
3244 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3248 /* Copy all of CPP_PREDEFINES into BUF,
3249 but put __ after every -D and at the end of each arg. */
3253 if (! strncmp (y, "-D", 2))
3260 if (strncmp (y, "__", 2))
3262 /* Stick __ at front of macro name. */
3265 /* Arrange to stick __ at the end as well. */
3269 /* Copy the macro name. */
3270 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3279 /* Copy the value given, if any. */
3280 while (*y && *y != ' ' && *y != '\t')
3283 else if (*y == ' ' || *y == '\t')
3284 /* Copy whitespace to the result. */
3286 /* Don't copy -A options */
3292 /* Copy all of CPP_PREDEFINES into BUF,
3293 but put __ after every -D. */
3297 if (! strncmp (y, "-D", 2))
3301 if (strncmp (y, "__", 2))
3303 /* Stick -D__ at front of macro name. */
3309 /* Copy the macro name. */
3310 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3313 /* Copy the value given, if any. */
3314 while (*y && *y != ' ' && *y != '\t')
3319 /* Do not copy this macro - we have just done it before */
3320 while (*y && *y != ' ' && *y != '\t')
3324 else if (*y == ' ' || *y == '\t')
3325 /* Copy whitespace to the result. */
3327 /* Don't copy -A options */
3333 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3337 if (! strncmp (y, "-A", 2))
3338 /* Copy the whole option. */
3339 while (*y && *y != ' ' && *y != '\t')
3341 else if (*y == ' ' || *y == '\t')
3342 /* Copy whitespace to the result. */
3344 /* Don't copy other options. */
3351 value = do_spec_1 (buf, 0, NULL_PTR);
3358 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3363 /* Here we define characters other than letters and digits. */
3366 p = handle_braces (p);
3372 obstack_1grow (&obstack, '%');
3376 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3377 do_spec_1 (" ", 0, NULL_PTR);
3380 /* Process a string found as the value of a spec given by name.
3381 This feature allows individual machine descriptions
3382 to add and use their own specs.
3383 %[...] modifies -D options the way %P does;
3384 %(...) uses the spec unmodified. */
3389 struct spec_list *sl;
3392 /* The string after the S/P is the name of a spec that is to be
3394 while (*p && *p != ')' && *p != ']')
3397 /* See if it's in the list */
3398 for (len = p - name, sl = specs; sl; sl = sl->next)
3399 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3409 value = do_spec_1 (name, 0, NULL_PTR);
3415 char *x = (char *) alloca (strlen (name) * 2 + 1);
3419 /* Copy all of NAME into BUF, but put __ after
3420 every -D and at the end of each arg, */
3423 if (! strncmp (y, "-D", 2))
3431 else if (*y == ' ' || *y == 0)
3445 value = do_spec_1 (buf, 0, NULL_PTR);
3451 /* Discard the closing paren or bracket. */
3459 int c1 = *p++; /* Select first or second version number. */
3460 char *v = compiler_version;
3462 /* If desired, advance to second version number. */
3465 /* Set P after the first period. */
3466 while (*v != 0 && *v != ' ' && *v != '.')
3471 /* Set Q at the next period or at the end. */
3473 while (*q != 0 && *q != ' ' && *q != '.')
3475 /* Empty string means zero. */
3481 /* Put that part into the command. */
3482 obstack_grow (&obstack, v, q - v);
3488 if (input_from_pipe)
3489 do_spec_1 ("-", 0, NULL_PTR);
3498 /* Backslash: treat next character as ordinary. */
3503 /* Ordinary character: put it into the current argument. */
3504 obstack_1grow (&obstack, c);
3508 return 0; /* End of string */
3511 /* Return 0 if we call do_spec_1 and that returns -1. */
3524 /* A `|' after the open-brace means,
3525 if the test fails, output a single minus sign rather than nothing.
3526 This is used in %{|!pipe:...}. */
3530 /* A `!' after the open-brace negates the condition:
3531 succeed if the specified switch is not present. */
3535 /* A `.' after the open-brace means test against the current suffix. */
3545 while (*p != ':' && *p != '}') p++;
3548 register int count = 1;
3566 int found = (input_suffix != 0
3567 && strlen (input_suffix) == p - filter
3568 && strncmp (input_suffix, filter, p - filter) == 0);
3574 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3579 else if (p[-1] == '*' && p[0] == '}')
3581 /* Substitute all matching switches as separate args. */
3584 for (i = 0; i < n_switches; i++)
3585 if (!strncmp (switches[i].part1, filter, p - filter)
3586 && check_live_switch (i, p - filter))
3591 /* Test for presence of the specified switch. */
3595 /* If name specified ends in *, as in {x*:...},
3596 check for %* and handle that case. */
3597 if (p[-1] == '*' && !negate)
3602 /* First see whether we have %*. */
3606 if (*r == '%' && r[1] == '*')
3610 /* If we do, handle that case. */
3613 /* Substitute all matching switches as separate args.
3614 But do this by substituting for %*
3615 in the text that follows the colon. */
3617 unsigned hard_match_len = p - filter - 1;
3618 char *string = save_string (p + 1, q - p - 2);
3620 for (i = 0; i < n_switches; i++)
3621 if (!strncmp (switches[i].part1, filter, hard_match_len)
3622 && check_live_switch (i, hard_match_len))
3624 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3625 /* Pass any arguments this switch has. */
3633 /* If name specified ends in *, as in {x*:...},
3634 check for presence of any switch name starting with x. */
3637 for (i = 0; i < n_switches; i++)
3639 unsigned hard_match_len = p - filter - 1;
3641 if (!strncmp (switches[i].part1, filter, hard_match_len)
3642 && check_live_switch (i, hard_match_len))
3648 /* Otherwise, check for presence of exact name specified. */
3651 for (i = 0; i < n_switches; i++)
3653 if (!strncmp (switches[i].part1, filter, p - filter)
3654 && switches[i].part1[p - filter] == 0
3655 && check_live_switch (i, p - filter))
3663 /* If it is as desired (present for %{s...}, absent for %{-s...})
3664 then substitute either the switch or the specified
3665 conditional text. */
3666 if (present != negate)
3674 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3680 /* Here if a %{|...} conditional fails: output a minus sign,
3681 which means "standard output" or "standard input". */
3682 do_spec_1 ("-", 0, NULL_PTR);
3689 /* Return 0 if switch number SWITCHNUM is obsoleted by a later switch
3690 on the command line. LENGTH is the length of the switch name we
3691 are to compare for. Otherwise return zero.
3693 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
3694 whose value does not begin with "no-" is obsoleted by the same value
3695 with the "no-", similarly for a switch with the "no-" prefix. */
3698 check_live_switch (switchnum, length)
3702 char *name = switches[switchnum].part1;
3705 /* If we just have a single letter and it isn't "O", a negating
3706 switch would always match, so ignore that case. We will just
3707 send the conflicting switches to the compiler phase. */
3708 if (length == 1 && name[0] != 'O')
3711 /* If we already processed this switch and determined if it was
3712 live or not, return our past determination. */
3713 if (switches[switchnum].live_cond != 0)
3714 return switches[switchnum].live_cond > 0;
3716 /* Now search for duplicate in a manner that depends on the name. */
3721 for (i = switchnum + 1; i < n_switches; i++)
3722 if (switches[i].part1[0] == 'O')
3724 switches[switchnum].valid = 1;
3725 switches[switchnum].live_cond = -1;
3730 case 'W': case 'f': case 'm':
3731 if (length > 4 && ! strncmp (name + 1, "no-", 3))
3733 /* We have Xno-YYY, search for XYYY. */
3734 for (i = switchnum + 1; i < n_switches; i++)
3735 if (switches[i].part1[0] == name[0]
3736 && ! strcmp (&switches[i].part1[1], &name[4]))
3738 switches[switchnum].valid = 1;
3739 switches[switchnum].live_cond = -1;
3745 /* We have XYYY, search for Xno-YYY. */
3746 for (i = switchnum + 1; i < n_switches; i++)
3747 if (switches[i].part1[0] == name[0]
3748 && switches[i].part1[1] == 'n'
3749 && switches[i].part1[2] == 'o'
3750 && switches[i].part1[3] == '-'
3751 && !strcmp (&switches[i].part1[4], &name[1]))
3753 switches[switchnum].valid = 1;
3754 switches[switchnum].live_cond = -1;
3761 /* Otherwise the switch is live. */
3762 switches[switchnum].live_cond = 1;
3766 /* Pass a switch to the current accumulating command
3767 in the same form that we received it.
3768 SWITCHNUM identifies the switch; it is an index into
3769 the vector of switches gcc received, which is `switches'.
3770 This cannot fail since it never finishes a command line.
3772 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
3775 give_switch (switchnum, omit_first_word)
3777 int omit_first_word;
3779 if (!omit_first_word)
3781 do_spec_1 ("-", 0, NULL_PTR);
3782 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
3784 do_spec_1 (" ", 0, NULL_PTR);
3785 if (switches[switchnum].args != 0)
3788 for (p = switches[switchnum].args; *p; p++)
3790 do_spec_1 (*p, 1, NULL_PTR);
3791 do_spec_1 (" ", 0, NULL_PTR);
3794 switches[switchnum].valid = 1;
3797 /* Search for a file named NAME trying various prefixes including the
3798 user's -B prefix and some standard ones.
3799 Return the absolute file name found. If nothing is found, return NAME. */
3807 newname = find_a_file (&startfile_prefix, name, R_OK);
3808 return newname ? newname : name;
3811 /* Determine whether a directory exists. If LINKER, return 0 for
3812 certain fixed names not needed by the linker. If not LINKER, it is
3813 only important to return 0 if the host machine has a small ARG_MAX
3817 is_directory (path1, path2, linker)
3822 int len1 = strlen (path1);
3823 int len2 = strlen (path2);
3824 char *path = (char *) alloca (3 + len1 + len2);
3828 #ifndef SMALL_ARG_MAX
3833 /* Construct the path from the two parts. Ensure the string ends with "/.".
3834 The resulting path will be a directory even if the given path is a
3836 bcopy (path1, path, len1);
3837 bcopy (path2, path + len1, len2);
3838 cp = path + len1 + len2;
3844 /* Exclude directories that the linker is known to search. */
3846 && ((cp - path == 6 && strcmp (path, "/lib/.") == 0)
3847 || (cp - path == 10 && strcmp (path, "/usr/lib/.") == 0)))
3850 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
3853 /* On fatal signals, delete all the temporary files. */
3856 fatal_error (signum)
3859 signal (signum, SIG_DFL);
3860 delete_failure_queue ();
3861 delete_temp_files ();
3862 /* Get the same signal again, this time not handled,
3863 so its normal effect occurs. */
3864 kill (getpid (), signum);
3875 int linker_was_run = 0;
3876 char *explicit_link_files;
3880 p = argv[0] + strlen (argv[0]);
3881 while (p != argv[0] && p[-1] != '/') --p;
3884 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
3885 signal (SIGINT, fatal_error);
3887 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
3888 signal (SIGHUP, fatal_error);
3890 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
3891 signal (SIGTERM, fatal_error);
3893 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
3894 signal (SIGPIPE, fatal_error);
3898 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
3900 obstack_init (&obstack);
3902 /* Set up to remember the pathname of gcc and any options
3903 needed for collect. We use argv[0] instead of programname because
3904 we need the complete pathname. */
3905 obstack_init (&collect_obstack);
3906 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
3907 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
3908 putenv (obstack_finish (&collect_obstack));
3910 /* Choose directory for temp files. */
3912 choose_temp_base ();
3914 /* Make a table of what switches there are (switches, n_switches).
3915 Make a table of specified input files (infiles, n_infiles).
3916 Decode switches that are handled locally. */
3918 process_command (argc, argv);
3920 /* Initialize the vector of specs to just the default.
3921 This means one element containing 0s, as a terminator. */
3923 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
3924 bcopy (default_compilers, compilers, sizeof default_compilers);
3925 n_compilers = n_default_compilers;
3927 /* Read specs from a file if there is one. */
3929 machine_suffix = concat (spec_machine, "/", concat (spec_version, "/", ""));
3930 just_machine_suffix = concat (spec_machine, "/", "");
3932 specs_file = find_a_file (&startfile_prefix, "specs", R_OK);
3933 /* Read the specs file unless it is a default one. */
3934 if (specs_file != 0 && strcmp (specs_file, "specs"))
3935 read_specs (specs_file);
3937 /* If not cross-compiling, look for startfiles in the standard places. */
3938 /* The fact that these are done here, after reading the specs file,
3939 means that it cannot be found in these directories.
3940 But that's okay. It should never be there anyway. */
3943 #ifdef MD_EXEC_PREFIX
3944 add_prefix (&exec_prefix, md_exec_prefix, 0, 0, NULL_PTR);
3945 add_prefix (&startfile_prefix, md_exec_prefix, 0, 0, NULL_PTR);
3948 #ifdef MD_STARTFILE_PREFIX
3949 add_prefix (&startfile_prefix, md_startfile_prefix, 0, 0, NULL_PTR);
3952 #ifdef MD_STARTFILE_PREFIX_1
3953 add_prefix (&startfile_prefix, md_startfile_prefix_1, 0, 0, NULL_PTR);
3956 /* If standard_startfile_prefix is relative, base it on
3957 standard_exec_prefix. This lets us move the installed tree
3958 as a unit. If GCC_EXEC_PREFIX is defined, base
3959 standard_startfile_prefix on that as well. */
3960 if (*standard_startfile_prefix == '/')
3961 add_prefix (&startfile_prefix, standard_startfile_prefix, 0, 0,
3965 if (gcc_exec_prefix)
3966 add_prefix (&startfile_prefix,
3967 concat (gcc_exec_prefix,
3968 standard_startfile_prefix,
3971 add_prefix (&startfile_prefix,
3972 concat (standard_exec_prefix,
3974 standard_startfile_prefix),
3978 add_prefix (&startfile_prefix, standard_startfile_prefix_1, 0, 0,
3980 add_prefix (&startfile_prefix, standard_startfile_prefix_2, 0, 0,
3982 #if 0 /* Can cause surprises, and one can use -B./ instead. */
3983 add_prefix (&startfile_prefix, "./", 0, 1, NULL_PTR);
3987 /* Now we have the specs.
3988 Set the `valid' bits for switches that match anything in any spec. */
3990 validate_all_switches ();
3992 /* Warn about any switches that no pass was interested in. */
3994 for (i = 0; i < n_switches; i++)
3995 if (! switches[i].valid)
3996 error ("unrecognized option `-%s'", switches[i].part1);
3998 if (print_libgcc_file_name)
4000 printf ("%s\n", find_file ("libgcc.a"));
4004 /* Obey some of the options. */
4008 fprintf (stderr, "gcc version %s\n", version_string);
4014 fatal ("No input files");
4016 /* Make a place to record the compiler output file names
4017 that correspond to the input files. */
4019 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4020 bzero (outfiles, n_infiles * sizeof (char *));
4022 /* Record which files were specified explicitly as link input. */
4024 explicit_link_files = xmalloc (n_infiles);
4025 bzero (explicit_link_files, n_infiles);
4027 for (i = 0; i < n_infiles; i++)
4029 register struct compiler *cp = 0;
4030 int this_file_error = 0;
4032 /* Tell do_spec what to substitute for %i. */
4034 input_filename = infiles[i].name;
4035 input_filename_length = strlen (input_filename);
4036 input_file_number = i;
4038 /* Use the same thing in %o, unless cp->spec says otherwise. */
4040 outfiles[i] = input_filename;
4042 /* Figure out which compiler from the file's suffix. */
4044 cp = lookup_compiler (infiles[i].name, input_filename_length,
4045 infiles[i].language);
4049 /* Ok, we found an applicable compiler. Run its spec. */
4050 /* First say how much of input_filename to substitute for %b */
4054 input_basename = input_filename;
4055 for (p = input_filename; *p; p++)
4057 input_basename = p + 1;
4059 /* Find a suffix starting with the last period,
4060 and set basename_length to exclude that suffix. */
4061 basename_length = strlen (input_basename);
4062 p = input_basename + basename_length;
4063 while (p != input_basename && *p != '.') --p;
4064 if (*p == '.' && p != input_basename)
4066 basename_length = p - input_basename;
4067 input_suffix = p + 1;
4073 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4075 len += strlen (cp->spec[j]);
4077 p = (char *) xmalloc (len + 1);
4080 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4083 strcpy (p + len, cp->spec[j]);
4084 len += strlen (cp->spec[j]);
4087 value = do_spec (p);
4090 this_file_error = 1;
4093 /* If this file's name does not contain a recognized suffix,
4094 record it as explicit linker input. */
4097 explicit_link_files[i] = 1;
4099 /* Clear the delete-on-failure queue, deleting the files in it
4100 if this compilation failed. */
4102 if (this_file_error)
4104 delete_failure_queue ();
4107 /* If this compilation succeeded, don't delete those files later. */
4108 clear_failure_queue ();
4111 /* Run ld to link all the compiler output files. */
4113 if (error_count == 0)
4115 int tmp = execution_count;
4119 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4121 putenv_from_prefixes (&exec_prefix, "COMPILER_PATH=");
4122 putenv_from_prefixes (&startfile_prefix, "LIBRARY_PATH=");
4124 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4126 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4127 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4130 for (i = 0; i < n_switches; i++)
4134 obstack_grow (&collect_obstack, " ", 1);
4137 obstack_grow (&collect_obstack, "-", 1);
4138 obstack_grow (&collect_obstack, switches[i].part1,
4139 strlen (switches[i].part1));
4141 for (args = switches[i].args; args && *args; args++)
4143 obstack_grow (&collect_obstack, " ", 1);
4144 obstack_grow (&collect_obstack, *args, strlen (*args));
4147 obstack_grow (&collect_obstack, "\0", 1);
4148 putenv (obstack_finish (&collect_obstack));
4150 value = do_spec (link_command_spec);
4153 linker_was_run = (tmp != execution_count);
4156 /* Warn if a -B option was specified but the prefix was never used. */
4157 unused_prefix_warnings (&exec_prefix);
4158 unused_prefix_warnings (&startfile_prefix);
4160 /* If options said don't run linker,
4161 complain about input files to be given to the linker. */
4163 if (! linker_was_run && error_count == 0)
4164 for (i = 0; i < n_infiles; i++)
4165 if (explicit_link_files[i])
4166 error ("%s: linker input file unused since linking not done",
4169 /* Delete some or all of the temporary files we made. */
4172 delete_failure_queue ();
4173 delete_temp_files ();
4175 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4180 /* Find the proper compilation spec for the file name NAME,
4181 whose length is LENGTH. LANGUAGE is the specified language,
4182 or 0 if none specified. */
4184 static struct compiler *
4185 lookup_compiler (name, length, language)
4190 struct compiler *cp;
4192 /* Look for the language, if one is spec'd. */
4195 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4199 if (cp->suffix[0] == '@'
4200 && !strcmp (cp->suffix + 1, language))
4204 error ("language %s not recognized", language);
4207 /* Look for a suffix. */
4208 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4210 if (/* The suffix `-' matches only the file name `-'. */
4211 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4213 (strlen (cp->suffix) < length
4214 /* See if the suffix matches the end of NAME. */
4215 && !strcmp (cp->suffix,
4216 name + length - strlen (cp->suffix))))
4218 if (cp->spec[0][0] == '@')
4220 struct compiler *new;
4221 /* An alias entry maps a suffix to a language.
4222 Search for the language; pass 0 for NAME and LENGTH
4223 to avoid infinite recursion if language not found.
4224 Construct the new compiler spec. */
4225 language = cp->spec[0] + 1;
4226 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4227 new->suffix = cp->suffix;
4228 bcopy (lookup_compiler (NULL_PTR, 0, language)->spec,
4229 new->spec, sizeof new->spec);
4232 /* A non-alias entry: return it. */
4244 register char *value = (char *) malloc (size);
4246 fatal ("virtual memory exhausted");
4251 xrealloc (ptr, size)
4255 register char *value = (char *) realloc (ptr, size);
4257 fatal ("virtual memory exhausted");
4261 /* Return a newly-allocated string whose contents concatenate those of s1, s2, s3. */
4267 int len1 = strlen (s1), len2 = strlen (s2), len3 = strlen (s3);
4268 char *result = xmalloc (len1 + len2 + len3 + 1);
4270 strcpy (result, s1);
4271 strcpy (result + len1, s2);
4272 strcpy (result + len1 + len2, s3);
4273 *(result + len1 + len2 + len3) = 0;
4279 save_string (s, len)
4283 register char *result = xmalloc (len + 1);
4285 bcopy (s, result, len);
4291 pfatal_with_name (name)
4296 if (errno < sys_nerr)
4297 s = concat ("%s: ", sys_errlist[errno], "");
4299 s = "cannot open %s";
4304 perror_with_name (name)
4309 if (errno < sys_nerr)
4310 s = concat ("%s: ", sys_errlist[errno], "");
4312 s = "cannot open %s";
4322 if (errno < sys_nerr)
4323 s = concat ("installation problem, cannot exec %s: ",
4324 sys_errlist[errno], "");
4326 s = "installation problem, cannot exec %s";
4330 /* More 'friendly' abort that prints the line and file.
4331 config.h can #define abort fancy_abort if you like that sort of thing. */
4336 fatal ("Internal gcc abort.");
4341 /* Output an error message and exit */
4344 fatal VPROTO((char *format, ...))
4351 VA_START (ap, format);
4354 format = va_arg (ap, char*);
4357 fprintf (stderr, "%s: ", programname);
4358 vfprintf (stderr, format, ap);
4360 fprintf (stderr, "\n");
4361 delete_temp_files ();
4366 error VPROTO((char *format, ...))
4373 VA_START (ap, format);
4376 format = va_arg (ap, char*);
4379 fprintf (stderr, "%s: ", programname);
4380 vfprintf (stderr, format, ap);
4383 fprintf (stderr, "\n");
4386 #else /* not HAVE_VPRINTF */
4389 fatal (msg, arg1, arg2)
4390 char *msg, *arg1, *arg2;
4392 error (msg, arg1, arg2);
4393 delete_temp_files ();
4398 error (msg, arg1, arg2)
4399 char *msg, *arg1, *arg2;
4401 fprintf (stderr, "%s: ", programname);
4402 fprintf (stderr, msg, arg1, arg2);
4403 fprintf (stderr, "\n");
4406 #endif /* not HAVE_VPRINTF */
4410 validate_all_switches ()
4412 struct compiler *comp;
4415 struct spec_list *spec;
4417 for (comp = compilers; comp->spec[0]; comp++)
4420 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4424 if (c == '%' && *p == '{')
4425 /* We have a switch spec. */
4426 validate_switches (p + 1);
4430 /* look through the linked list of extra specs read from the specs file */
4431 for (spec = specs; spec ; spec = spec->next)
4435 if (c == '%' && *p == '{')
4436 /* We have a switch spec. */
4437 validate_switches (p + 1);
4440 p = link_command_spec;
4442 if (c == '%' && *p == '{')
4443 /* We have a switch spec. */
4444 validate_switches (p + 1);
4446 /* Now notice switches mentioned in the machine-specific specs. */
4450 if (c == '%' && *p == '{')
4451 /* We have a switch spec. */
4452 validate_switches (p + 1);
4456 if (c == '%' && *p == '{')
4457 /* We have a switch spec. */
4458 validate_switches (p + 1);
4462 if (c == '%' && *p == '{')
4463 /* We have a switch spec. */
4464 validate_switches (p + 1);
4466 p = signed_char_spec;
4468 if (c == '%' && *p == '{')
4469 /* We have a switch spec. */
4470 validate_switches (p + 1);
4474 if (c == '%' && *p == '{')
4475 /* We have a switch spec. */
4476 validate_switches (p + 1);
4480 if (c == '%' && *p == '{')
4481 /* We have a switch spec. */
4482 validate_switches (p + 1);
4486 if (c == '%' && *p == '{')
4487 /* We have a switch spec. */
4488 validate_switches (p + 1);
4492 if (c == '%' && *p == '{')
4493 /* We have a switch spec. */
4494 validate_switches (p + 1);
4498 if (c == '%' && *p == '{')
4499 /* We have a switch spec. */
4500 validate_switches (p + 1);
4503 /* Look at the switch-name that comes after START
4504 and mark as valid all supplied switches that match it. */
4507 validate_switches (start)
4510 register char *p = start;
4525 while (*p != ':' && *p != '}') p++;
4529 else if (p[-1] == '*')
4531 /* Mark all matching switches as valid. */
4533 for (i = 0; i < n_switches; i++)
4534 if (!strncmp (switches[i].part1, filter, p - filter))
4535 switches[i].valid = 1;
4539 /* Mark an exact matching switch as valid. */
4540 for (i = 0; i < n_switches; i++)
4542 if (!strncmp (switches[i].part1, filter, p - filter)
4543 && switches[i].part1[p - filter] == 0)
4544 switches[i].valid = 1;