1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92-97, 1998 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, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA.
21 This paragraph is here to try to keep Sun CC from dying.
22 The number of chars here seems crucial!!!! */
24 /* This program is the user interface to the C compiler and possibly to
25 other compilers. It is used because compilation is a complicated procedure
26 which involves running several programs and passing temporary files between
27 them, forwarding the users switches to those programs selectively,
28 and deleting the temporary files at the end.
30 CC recognizes how to compile each input file by suffixes in the file names.
31 Once it knows which kind of compilation to perform, the procedure for
32 compilation is specified by a string called a "spec". */
36 #include "gansidecl.h"
50 /* ??? Need to find a GCC header to put these in. */
51 extern int pexecute
PROTO ((const char *, char * const *, const char *,
52 const char *, char **, char **, int));
53 extern int pwait
PROTO ((int, int *, int));
54 extern char *update_path
PROTO((char *, char *));
55 /* Flag arguments to pexecute. */
56 #define PEXECUTE_FIRST 1
57 #define PEXECUTE_LAST 2
58 #define PEXECUTE_SEARCH 4
59 #define PEXECUTE_VERBOSE 8
62 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
65 #define WTERMSIG(S) ((S) & 0x7f)
68 #define WIFEXITED(S) (((S) & 0xff) == 0)
71 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
75 #define exit __posix_exit
78 /* Define O_RDONLY if the system hasn't defined it for us. */
87 /* Test if something is a normal file. */
89 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
92 /* Test if something is a directory. */
94 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
97 /* By default there is no special suffix for executables. */
98 #ifdef EXECUTABLE_SUFFIX
99 #define HAVE_EXECUTABLE_SUFFIX
101 #define EXECUTABLE_SUFFIX ""
104 /* By default, the suffix for object files is ".o". */
106 #define HAVE_OBJECT_SUFFIX
108 #define OBJECT_SUFFIX ".o"
111 /* By default, colon separates directories in a path. */
112 #ifndef PATH_SEPARATOR
113 #define PATH_SEPARATOR ':'
116 #ifndef DIR_SEPARATOR
117 #define DIR_SEPARATOR '/'
120 static char dir_separator_str
[] = {DIR_SEPARATOR
, 0};
122 #define obstack_chunk_alloc xmalloc
123 #define obstack_chunk_free free
125 extern char *choose_temp_base
PROTO((void));
127 #ifndef HAVE_STRERROR
129 extern char *sys_errlist
[];
131 extern char *strerror();
135 #define kill(p,s) raise(s)
138 /* If a stage of compilation returns an exit status >= 1,
139 compilation of that file ceases. */
141 #define MIN_FATAL_STATUS 1
143 /* Flag saying to print the directories gcc will search through looking for
144 programs, libraries, etc. */
146 static int print_search_dirs
;
148 /* Flag saying to print the full filename of this file
149 as found through our usual search mechanism. */
151 static char *print_file_name
= NULL
;
153 /* As print_file_name, but search for executable file. */
155 static char *print_prog_name
= NULL
;
157 /* Flag saying to print the relative path we'd use to
158 find libgcc.a given the current compiler flags. */
160 static int print_multi_directory
;
162 /* Flag saying to print the list of subdirectories and
163 compiler flags used to select them in a standard form. */
165 static int print_multi_lib
;
167 /* Flag indicating whether we should print the command and arguments */
169 static int verbose_flag
;
171 /* Nonzero means write "temp" files in source directory
172 and use the source file's name in them, and don't delete them. */
174 static int save_temps_flag
;
176 /* The compiler version. */
178 static char *compiler_version
;
180 /* The target version specified with -V */
182 static char *spec_version
= DEFAULT_TARGET_VERSION
;
184 /* The target machine specified with -b. */
186 static char *spec_machine
= DEFAULT_TARGET_MACHINE
;
188 /* Nonzero if cross-compiling.
189 When -b is used, the value comes from the `specs' file. */
192 static char *cross_compile
= "1";
194 static char *cross_compile
= "0";
197 /* The number of errors that have occurred; the link phase will not be
198 run if this is non-zero. */
199 static int error_count
= 0;
201 /* This is the obstack which we use to allocate many strings. */
203 static struct obstack obstack
;
205 /* This is the obstack to build an environment variable to pass to
206 collect2 that describes all of the relevant switches of what to
207 pass the compiler in building the list of pointers to constructors
210 static struct obstack collect_obstack
;
212 extern char *version_string
;
214 /* Forward declaration for prototypes. */
217 static void init_spec
PROTO((void));
218 static void read_specs
PROTO((char *, int));
219 static void set_spec
PROTO((char *, char *));
220 static struct compiler
*lookup_compiler
PROTO((char *, size_t, char *));
221 static char *build_search_list
PROTO((struct path_prefix
*, char *, int));
222 static void putenv_from_prefixes
PROTO((struct path_prefix
*, char *));
223 static char *find_a_file
PROTO((struct path_prefix
*, char *, int));
224 static void add_prefix
PROTO((struct path_prefix
*, char *, char *,
226 static char *skip_whitespace
PROTO((char *));
227 static void record_temp_file
PROTO((char *, int, int));
228 static void delete_if_ordinary
PROTO((char *));
229 static void delete_temp_files
PROTO((void));
230 static void delete_failure_queue
PROTO((void));
231 static void clear_failure_queue
PROTO((void));
232 static int check_live_switch
PROTO((int, int));
233 static char *handle_braces
PROTO((char *));
234 static char *save_string
PROTO((char *, int));
235 static char *concat
PVPROTO((char *, ...));
236 static int do_spec
PROTO((char *));
237 static int do_spec_1
PROTO((char *, int, char *));
238 static char *find_file
PROTO((char *));
239 static int is_directory
PROTO((char *, char *, int));
240 static void validate_switches
PROTO((char *));
241 static void validate_all_switches
PROTO((void));
242 static void give_switch
PROTO((int, int, int));
243 static int used_arg
PROTO((char *, int));
244 static int default_arg
PROTO((char *, int));
245 static void set_multilib_dir
PROTO((void));
246 static void print_multilib_info
PROTO((void));
247 static void pfatal_with_name
PROTO((char *));
248 static void perror_with_name
PROTO((char *));
249 static void pfatal_pexecute
PROTO((char *, char *));
251 static void fatal
PVPROTO((char *, ...));
252 static void error
PVPROTO((char *, ...));
254 /* We must not provide any prototype here, even if ANSI C. */
255 static void fatal
PROTO(());
256 static void error
PROTO(());
263 #ifdef LANG_SPECIFIC_DRIVER
264 extern void lang_specific_driver
PROTO ((void (*) (), int *, char ***));
267 /* Specs are strings containing lines, each of which (if not blank)
268 is made up of a program name, and arguments separated by spaces.
269 The program name must be exact and start from root, since no path
270 is searched and it is unreliable to depend on the current working directory.
271 Redirection of input or output is not supported; the subprograms must
272 accept filenames saying what files to read and write.
274 In addition, the specs can contain %-sequences to substitute variable text
275 or for conditional text. Here is a table of all defined %-sequences.
276 Note that spaces are not generated automatically around the results of
277 expanding these sequences; therefore, you can concatenate them together
278 or with constant text in a single argument.
280 %% substitute one % into the program name or argument.
281 %i substitute the name of the input file being processed.
282 %b substitute the basename of the input file being processed.
283 This is the substring up to (and not including) the last period
284 and not including the directory.
285 %g substitute the temporary-file-name-base. This is a string chosen
286 once per compilation. Different temporary file names are made by
287 concatenation of constant strings on the end, as in `%g.s'.
288 %g also has the same effect of %d.
289 %u like %g, but make the temporary file name unique.
290 %U returns the last file name generated with %u.
291 %d marks the argument containing or following the %d as a
292 temporary file name, so that that file will be deleted if CC exits
293 successfully. Unlike %g, this contributes no text to the argument.
294 %w marks the argument containing or following the %w as the
295 "output file" of this compilation. This puts the argument
296 into the sequence of arguments that %o will substitute later.
298 like %{...} but mark last argument supplied within
299 as a file to be deleted on failure.
300 %o substitutes the names of all the output files, with spaces
301 automatically placed around them. You should write spaces
302 around the %o as well or the results are undefined.
303 %o is for use in the specs for running the linker.
304 Input files whose names have no recognized suffix are not compiled
305 at all, but they are included among the output files, so they will
307 %O substitutes the suffix for object files.
308 %p substitutes the standard macro predefinitions for the
309 current target machine. Use this when running cpp.
310 %P like %p, but puts `__' before and after the name of each macro.
311 (Except macros that already have __.)
313 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
314 %s current argument is the name of a library or startup file of some sort.
315 Search for that file in a standard list of directories
316 and substitute the full name found.
317 %eSTR Print STR as an error message. STR is terminated by a newline.
318 Use this when inconsistent options are detected.
319 %x{OPTION} Accumulate an option for %X.
320 %X Output the accumulated linker options specified by compilations.
321 %Y Output the accumulated assembler options specified by compilations.
322 %Z Output the accumulated preprocessor options specified by compilations.
323 %v1 Substitute the major version number of GCC.
324 (For version 2.5.n, this is 2.)
325 %v2 Substitute the minor version number of GCC.
326 (For version 2.5.n, this is 5.)
327 %a process ASM_SPEC as a spec.
328 This allows config.h to specify part of the spec for running as.
329 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
330 used here. This can be used to run a post-processor after the
331 assembler has done it's job.
332 %D Dump out a -L option for each directory in startfile_prefixes.
333 If multilib_dir is set, extra entries are generated with it affixed.
334 %l process LINK_SPEC as a spec.
335 %L process LIB_SPEC as a spec.
336 %G process LIBGCC_SPEC as a spec.
337 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
338 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
339 %c process SIGNED_CHAR_SPEC as a spec.
340 %C process CPP_SPEC as a spec. A capital C is actually used here.
341 %1 process CC1_SPEC as a spec.
342 %2 process CC1PLUS_SPEC as a spec.
343 %| output "-" if the input for the current command is coming from a pipe.
344 %* substitute the variable part of a matched option. (See below.)
345 Note that each comma in the substituted string is replaced by
347 %{S} substitutes the -S switch, if that switch was given to CC.
348 If that switch was not specified, this substitutes nothing.
349 Here S is a metasyntactic variable.
350 %{S*} substitutes all the switches specified to CC whose names start
351 with -S. This is used for -o, -D, -I, etc; switches that take
352 arguments. CC considers `-o foo' as being one switch whose
353 name starts with `o'. %{o*} would substitute this text,
354 including the space; thus, two arguments would be generated.
355 %{^S*} likewise, but don't put a blank between a switch and any args.
356 %{S*:X} substitutes X if one or more switches whose names start with -S are
357 specified to CC. Note that the tail part of the -S option
358 (i.e. the part matched by the `*') will be substituted for each
359 occurrence of %* within X.
360 %{S:X} substitutes X, but only if the -S switch was given to CC.
361 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
362 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
363 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
364 %{.S:X} substitutes X, but only if processing a file with suffix S.
365 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
366 %(Spec) processes a specification defined in a specs file as *Spec:
367 %[Spec] as above, but put __ around -D arguments
369 The conditional text X in a %{S:X} or %{!S:X} construct may contain
370 other nested % constructs or spaces, or even newlines. They are
371 processed as usual, as described above.
373 The -O, -f, -m, and -W switches are handled specifically in these
374 constructs. If another value of -O or the negated form of a -f, -m, or
375 -W switch is found later in the command line, the earlier switch
376 value is ignored, except with {S*} where S is just one letter; this
377 passes all matching options.
379 The character | is used to indicate that a command should be piped to
380 the following command, but only if -pipe is specified.
382 Note that it is built into CC which switches take arguments and which
383 do not. You might think it would be useful to generalize this to
384 allow each compiler's spec to say which switches take arguments. But
385 this cannot be done in a consistent fashion. CC cannot even decide
386 which input files have been specified without knowing which switches
387 take arguments, and it must know which input files to compile in order
388 to tell which compilers to run.
390 CC also knows implicitly that arguments starting in `-l' are to be
391 treated as compiler output files, and passed to the linker in their
392 proper position among the other output files. */
394 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
396 /* config.h can define ASM_SPEC to provide extra args to the assembler
397 or extra switch-translations. */
402 /* config.h can define ASM_FINAL_SPEC to run a post processor after
403 the assembler has run. */
404 #ifndef ASM_FINAL_SPEC
405 #define ASM_FINAL_SPEC ""
408 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
409 or extra switch-translations. */
414 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
415 or extra switch-translations. */
420 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
421 or extra switch-translations. */
423 #define CC1PLUS_SPEC ""
426 /* config.h can define LINK_SPEC to provide extra args to the linker
427 or extra switch-translations. */
432 /* config.h can define LIB_SPEC to override the default libraries. */
434 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
437 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
440 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
441 /* Have gcc do the search for libgcc.a. */
442 #define LIBGCC_SPEC "libgcc.a%s"
444 #define LIBGCC_SPEC "-lgcc"
448 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
449 #ifndef STARTFILE_SPEC
450 #define STARTFILE_SPEC \
451 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
454 /* config.h can define SWITCHES_NEED_SPACES to control which options
455 require spaces between the option and the argument. */
456 #ifndef SWITCHES_NEED_SPACES
457 #define SWITCHES_NEED_SPACES ""
460 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
462 #define ENDFILE_SPEC ""
465 /* This spec is used for telling cpp whether char is signed or not. */
466 #ifndef SIGNED_CHAR_SPEC
467 /* Use #if rather than ?:
468 because MIPS C compiler rejects like ?: in initializers. */
469 #if DEFAULT_SIGNED_CHAR
470 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
472 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
476 static char *cpp_spec
= CPP_SPEC
;
477 static char *cpp_predefines
= CPP_PREDEFINES
;
478 static char *cc1_spec
= CC1_SPEC
;
479 static char *cc1plus_spec
= CC1PLUS_SPEC
;
480 static char *signed_char_spec
= SIGNED_CHAR_SPEC
;
481 static char *asm_spec
= ASM_SPEC
;
482 static char *asm_final_spec
= ASM_FINAL_SPEC
;
483 static char *link_spec
= LINK_SPEC
;
484 static char *lib_spec
= LIB_SPEC
;
485 static char *libgcc_spec
= LIBGCC_SPEC
;
486 static char *endfile_spec
= ENDFILE_SPEC
;
487 static char *startfile_spec
= STARTFILE_SPEC
;
488 static char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
490 /* Some compilers have limits on line lengths, and the multilib_select
491 and/or multilib_matches strings can be very long, so we build them at
493 static struct obstack multilib_obstack
;
494 static char *multilib_select
;
495 static char *multilib_matches
;
496 static char *multilib_defaults
;
497 #include "multilib.h"
499 /* Check whether a particular argument is a default argument. */
501 #ifndef MULTILIB_DEFAULTS
502 #define MULTILIB_DEFAULTS { "" }
505 static char *multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
508 struct user_specs
*next
;
512 static struct user_specs
*user_specs_head
, *user_specs_tail
;
514 /* This defines which switch letters take arguments. */
516 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
517 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
518 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
519 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
520 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
521 || (CHAR) == 'B' || (CHAR) == 'b')
523 #ifndef SWITCH_TAKES_ARG
524 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
527 /* This defines which multi-letter switches take arguments. */
529 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
530 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
531 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
532 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
533 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
534 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
535 || !strcmp (STR, "isystem") || !strcmp (STR, "specs"))
537 #ifndef WORD_SWITCH_TAKES_ARG
538 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
541 /* Record the mapping from file suffixes for compilation specs. */
545 char *suffix
; /* Use this compiler for input files
546 whose names end in this suffix. */
548 char *spec
[4]; /* To use this compiler, concatenate these
549 specs and pass to do_spec. */
552 /* Pointer to a vector of `struct compiler' that gives the spec for
553 compiling a file, based on its suffix.
554 A file that does not end in any of these suffixes will be passed
555 unchanged to the loader and nothing else will be done to it.
557 An entry containing two 0s is used to terminate the vector.
559 If multiple entries match a file, the last matching one is used. */
561 static struct compiler
*compilers
;
563 /* Number of entries in `compilers', not counting the null terminator. */
565 static int n_compilers
;
567 /* The default list of file name suffixes and their compilation specs. */
569 static struct compiler default_compilers
[] =
571 /* Add lists of suffixes of known languages here. If those languages
572 were not present when we built the driver, we will hit these copies
573 and be given a more meaningful error than "file not used since
574 linking is not done". */
575 {".cc", {"#C++"}}, {".cxx", {"#C++"}}, {".cpp", {"#C++"}}, {".c++", {"#C++"}},
576 {".C", {"#C++"}}, {".ads", {"#Ada"}}, {".adb", {"#Ada"}}, {".ada", {"#Ada"}},
577 {".f", {"#Fortran"}}, {".for", {"#Fortran"}}, {".F", {"#Fortran"}},
578 {".fpp", {"#Fortran"}},
579 {".p", {"#Pascal"}}, {".pas", {"#Pascal"}},
580 /* Next come the entries for C. */
583 {"cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
584 %{C:%{!E:%eGNU C does not support -C without using -E}}\
585 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
586 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
587 %{ansi:-trigraphs -D__STRICT_ANSI__}\
588 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
589 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
590 %{traditional} %{ftraditional:-traditional}\
591 %{traditional-cpp:-traditional}\
592 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
593 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
594 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
595 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
596 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
597 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
599 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
600 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
602 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
603 %{!pipe:%g.s} %A\n }}}}"}},
605 {"%{E:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
606 %{C:%{!E:%eGNU C does not support -C without using -E}}\
607 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
608 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
609 %{ansi:-trigraphs -D__STRICT_ANSI__}\
610 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
611 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
612 %{traditional} %{ftraditional:-traditional}\
613 %{traditional-cpp:-traditional}\
614 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
616 %{!E:%e-E required when input is from standard input}"}},
617 {".m", {"@objective-c"}},
619 {"cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
620 %{C:%{!E:%eGNU C does not support -C without using -E}}\
621 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
622 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
623 %{ansi:-trigraphs -D__STRICT_ANSI__}\
624 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
625 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
626 %{traditional} %{ftraditional:-traditional}\
627 %{traditional-cpp:-traditional}\
628 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
629 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
630 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
631 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a*}\
632 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
633 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
634 -lang-objc %{gen-decls} \
636 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
637 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
639 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
640 %{!pipe:%g.s} %A\n }}}}"}},
641 {".h", {"@c-header"}},
643 {"%{!E:%eCompilation of header file requested} \
644 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
645 %{C:%{!E:%eGNU C does not support -C without using -E}}\
646 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
647 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
648 %{ansi:-trigraphs -D__STRICT_ANSI__}\
649 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
650 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
651 %{traditional} %{ftraditional:-traditional}\
652 %{traditional-cpp:-traditional}\
653 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
655 {".i", {"@cpp-output"}},
657 {"%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
658 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
659 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
661 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
662 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
664 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
665 %{!pipe:%g.s} %A\n }}}}"}},
666 {".s", {"@assembler"}},
668 {"%{!M:%{!MM:%{!E:%{!S:as %a %Y\
669 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
671 {".S", {"@assembler-with-cpp"}},
672 {"@assembler-with-cpp",
673 {"cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
674 %{C:%{!E:%eGNU C does not support -C without using -E}}\
675 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
676 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
677 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
678 %{traditional} %{ftraditional:-traditional}\
679 %{traditional-cpp:-traditional}\
680 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
681 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
682 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
683 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
684 %{!pipe:%g.s} %A\n }}}}"}},
686 /* Mark end of table */
690 /* Number of elements in default_compilers, not counting the terminator. */
692 static int n_default_compilers
693 = (sizeof default_compilers
/ sizeof (struct compiler
)) - 1;
695 /* Here is the spec for running the linker, after compiling all files. */
697 /* -u* was put back because both BSD and SysV seem to support it. */
698 /* %{static:} simply prevents an error message if the target machine
699 doesn't handle -static. */
700 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
701 scripts which exist in user specified directories, or in standard
703 #ifdef LINK_LIBGCC_SPECIAL
704 /* Don't generate -L options. */
705 static char *link_command_spec
= "\
707 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
708 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
709 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
711 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
712 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
717 static char *link_command_spec
= "\
719 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
720 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
721 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
722 %{static:} %{L*} %D %o\
723 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
724 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
729 /* A vector of options to give to the linker.
730 These options are accumulated by %x,
731 and substituted into the linker command with %X. */
732 static int n_linker_options
;
733 static char **linker_options
;
735 /* A vector of options to give to the assembler.
736 These options are accumulated by -Wa,
737 and substituted into the assembler command with %Y. */
738 static int n_assembler_options
;
739 static char **assembler_options
;
741 /* A vector of options to give to the preprocessor.
742 These options are accumulated by -Wp,
743 and substituted into the preprocessor command with %Z. */
744 static int n_preprocessor_options
;
745 static char **preprocessor_options
;
747 /* Define how to map long options into short ones. */
749 /* This structure describes one mapping. */
752 /* The long option's name. */
754 /* The equivalent short option. */
756 /* Argument info. A string of flag chars; NULL equals no options.
757 a => argument required.
758 o => argument optional.
759 j => join argument to equivalent, making one word.
760 * => require other text after NAME as an argument. */
764 /* This is the table of mappings. Mappings are tried sequentially
765 for each option encountered; the first one that matches, wins. */
767 struct option_map option_map
[] =
769 {"--all-warnings", "-Wall", 0},
770 {"--ansi", "-ansi", 0},
771 {"--assemble", "-S", 0},
772 {"--assert", "-A", "a"},
773 {"--comments", "-C", 0},
774 {"--compile", "-c", 0},
775 {"--debug", "-g", "oj"},
776 {"--define-macro", "-D", "aj"},
777 {"--dependencies", "-M", 0},
778 {"--dump", "-d", "a"},
779 {"--dumpbase", "-dumpbase", "a"},
780 {"--entry", "-e", 0},
781 {"--extra-warnings", "-W", 0},
782 {"--for-assembler", "-Wa", "a"},
783 {"--for-linker", "-Xlinker", "a"},
784 {"--force-link", "-u", "a"},
785 {"--imacros", "-imacros", "a"},
786 {"--include", "-include", "a"},
787 {"--include-barrier", "-I-", 0},
788 {"--include-directory", "-I", "aj"},
789 {"--include-directory-after", "-idirafter", "a"},
790 {"--include-prefix", "-iprefix", "a"},
791 {"--include-with-prefix", "-iwithprefix", "a"},
792 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
793 {"--include-with-prefix-after", "-iwithprefix", "a"},
794 {"--language", "-x", "a"},
795 {"--library-directory", "-L", "a"},
796 {"--machine", "-m", "aj"},
797 {"--machine-", "-m", "*j"},
798 {"--no-line-commands", "-P", 0},
799 {"--no-precompiled-includes", "-noprecomp", 0},
800 {"--no-standard-includes", "-nostdinc", 0},
801 {"--no-standard-libraries", "-nostdlib", 0},
802 {"--no-warnings", "-w", 0},
803 {"--optimize", "-O", "oj"},
804 {"--output", "-o", "a"},
805 {"--pedantic", "-pedantic", 0},
806 {"--pedantic-errors", "-pedantic-errors", 0},
807 {"--pipe", "-pipe", 0},
808 {"--prefix", "-B", "a"},
809 {"--preprocess", "-E", 0},
810 {"--print-search-dirs", "-print-search-dirs", 0},
811 {"--print-file-name", "-print-file-name=", "aj"},
812 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
813 {"--print-missing-file-dependencies", "-MG", 0},
814 {"--print-multi-lib", "-print-multi-lib", 0},
815 {"--print-multi-directory", "-print-multi-directory", 0},
816 {"--print-prog-name", "-print-prog-name=", "aj"},
817 {"--profile", "-p", 0},
818 {"--profile-blocks", "-a", 0},
819 {"--quiet", "-q", 0},
820 {"--save-temps", "-save-temps", 0},
821 {"--shared", "-shared", 0},
822 {"--silent", "-q", 0},
823 {"--specs", "-specs=", "aj"},
824 {"--static", "-static", 0},
825 {"--symbolic", "-symbolic", 0},
826 {"--target", "-b", "a"},
827 {"--trace-includes", "-H", 0},
828 {"--traditional", "-traditional", 0},
829 {"--traditional-cpp", "-traditional-cpp", 0},
830 {"--trigraphs", "-trigraphs", 0},
831 {"--undefine-macro", "-U", "aj"},
832 {"--use-version", "-V", "a"},
833 {"--user-dependencies", "-MM", 0},
834 {"--verbose", "-v", 0},
835 {"--version", "-dumpversion", 0},
836 {"--warn-", "-W", "*j"},
837 {"--write-dependencies", "-MD", 0},
838 {"--write-user-dependencies", "-MMD", 0},
842 /* Translate the options described by *ARGCP and *ARGVP.
843 Make a new vector and store it back in *ARGVP,
844 and store its length in *ARGVC. */
847 translate_options (argcp
, argvp
)
853 char **argv
= *argvp
;
854 char **newv
= (char **) xmalloc ((argc
+ 2) * 2 * sizeof (char *));
858 newv
[newindex
++] = argv
[i
++];
862 /* Translate -- options. */
863 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
865 /* Find a mapping that applies to this option. */
866 for (j
= 0; j
< sizeof (option_map
) / sizeof (option_map
[0]); j
++)
868 size_t optlen
= strlen (option_map
[j
].name
);
869 size_t arglen
= strlen (argv
[i
]);
870 size_t complen
= arglen
> optlen
? optlen
: arglen
;
871 char *arginfo
= option_map
[j
].arg_info
;
876 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
883 k
< sizeof (option_map
) / sizeof (option_map
[0]);
885 if (strlen (option_map
[k
].name
) >= arglen
886 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
888 error ("Ambiguous abbreviation %s", argv
[i
]);
892 if (k
!= sizeof (option_map
) / sizeof (option_map
[0]))
898 /* If the option has an argument, accept that. */
899 if (argv
[i
][optlen
] == '=')
900 arg
= argv
[i
] + optlen
+ 1;
902 /* If this mapping requires extra text at end of name,
903 accept that as "argument". */
904 else if (index (arginfo
, '*') != 0)
905 arg
= argv
[i
] + optlen
;
907 /* Otherwise, extra text at end means mismatch.
908 Try other mappings. */
913 else if (index (arginfo
, '*') != 0)
915 error ("Incomplete `%s' option", option_map
[j
].name
);
919 /* Handle arguments. */
920 if (index (arginfo
, 'a') != 0)
926 error ("Missing argument to `%s' option",
934 else if (index (arginfo
, '*') != 0)
936 else if (index (arginfo
, 'o') == 0)
939 error ("Extraneous argument to `%s' option",
944 /* Store the translation as one argv elt or as two. */
945 if (arg
!= 0 && index (arginfo
, 'j') != 0)
946 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
950 newv
[newindex
++] = option_map
[j
].equivalent
;
951 newv
[newindex
++] = arg
;
954 newv
[newindex
++] = option_map
[j
].equivalent
;
962 /* Handle old-fashioned options--just copy them through,
963 with their arguments. */
964 else if (argv
[i
][0] == '-')
966 char *p
= argv
[i
] + 1;
970 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
971 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
972 else if (WORD_SWITCH_TAKES_ARG (p
))
973 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
974 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
977 else if (! strcmp (p
, "Xlinker"))
980 /* Watch out for an option at the end of the command line that
981 is missing arguments, and avoid skipping past the end of the
983 if (nskip
+ i
> argc
)
988 newv
[newindex
++] = argv
[i
++];
993 /* Ordinary operands, or +e options. */
994 newv
[newindex
++] = argv
[i
++];
1007 #ifdef HAVE_STRERROR
1013 static char buffer
[30];
1015 return "cannot access";
1017 if (e
> 0 && e
< sys_nerr
)
1018 return sys_errlist
[e
];
1020 sprintf (buffer
, "Unknown error %d", e
);
1031 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1032 be considered whitespace. */
1033 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1035 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1039 while (*p
!= '\n') p
++;
1049 /* Structure to keep track of the specs that have been defined so far.
1050 These are accessed using %(specname) or %[specname] in a compiler
1055 /* The following 2 fields must be first */
1056 /* to allow EXTRA_SPECS to be initialized */
1057 char *name
; /* name of the spec. */
1058 char *ptr
; /* available ptr if no static pointer */
1060 /* The following fields are not initialized */
1061 /* by EXTRA_SPECS */
1062 char **ptr_spec
; /* pointer to the spec itself. */
1063 struct spec_list
*next
; /* Next spec in linked list. */
1064 int name_len
; /* length of the name */
1065 int alloc_p
; /* whether string was allocated */
1068 #define INIT_STATIC_SPEC(NAME,PTR) \
1069 { NAME, NULL_PTR, PTR, (struct spec_list *)0, sizeof (NAME)-1, 0 }
1071 /* List of statically defined specs */
1072 static struct spec_list static_specs
[] = {
1073 INIT_STATIC_SPEC ("asm", &asm_spec
),
1074 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1075 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1076 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1077 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1078 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1079 INIT_STATIC_SPEC ("link", &link_spec
),
1080 INIT_STATIC_SPEC ("lib", &lib_spec
),
1081 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1082 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1083 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1084 INIT_STATIC_SPEC ("signed_char", &signed_char_spec
),
1085 INIT_STATIC_SPEC ("predefines", &cpp_predefines
),
1086 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1087 INIT_STATIC_SPEC ("version", &compiler_version
),
1088 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1089 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1090 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1091 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1094 #ifdef EXTRA_SPECS /* additional specs needed */
1095 static struct spec_list extra_specs
[] = { EXTRA_SPECS
};
1098 /* List of dynamically allocates specs that have been defined so far. */
1100 static struct spec_list
*specs
= (struct spec_list
*)0;
1103 /* Initialize the specs lookup routines. */
1108 struct spec_list
*next
= (struct spec_list
*)0;
1109 struct spec_list
*sl
= (struct spec_list
*)0;
1113 return; /* already initialized */
1116 fprintf (stderr
, "Using builtin specs.\n");
1119 for (i
= (sizeof (extra_specs
) / sizeof (extra_specs
[0])) - 1; i
>= 0; i
--)
1121 sl
= &extra_specs
[i
];
1123 sl
->name_len
= strlen (sl
->name
);
1124 sl
->ptr_spec
= &sl
->ptr
;
1129 for (i
= (sizeof (static_specs
) / sizeof (static_specs
[0])) - 1; i
>= 0; i
--)
1131 sl
= &static_specs
[i
];
1140 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1141 removed; If the spec starts with a + then SPEC is added to the end of the
1145 set_spec (name
, spec
)
1149 struct spec_list
*sl
;
1151 int name_len
= strlen (name
);
1154 /* If this is the first call, initialize the statically allocated specs */
1157 struct spec_list
*next
= (struct spec_list
*)0;
1158 for (i
= (sizeof (static_specs
) / sizeof (static_specs
[0])) - 1;
1161 sl
= &static_specs
[i
];
1168 /* See if the spec already exists */
1169 for (sl
= specs
; sl
; sl
= sl
->next
)
1170 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1175 /* Not found - make it */
1176 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1177 sl
->name
= save_string (name
, strlen (name
));
1178 sl
->name_len
= name_len
;
1179 sl
->ptr_spec
= &sl
->ptr
;
1181 *(sl
->ptr_spec
) = "";
1186 old_spec
= *(sl
->ptr_spec
);
1187 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE (spec
[1]))
1188 ? concat (old_spec
, spec
+ 1, NULL_PTR
)
1189 : save_string (spec
, strlen (spec
)));
1193 fprintf (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1196 /* Free the old spec */
1197 if (old_spec
&& sl
->alloc_p
)
1203 /* Accumulate a command (program name and args), and run it. */
1205 /* Vector of pointers to arguments in the current line of specifications. */
1207 static char **argbuf
;
1209 /* Number of elements allocated in argbuf. */
1211 static int argbuf_length
;
1213 /* Number of elements in argbuf currently in use (containing args). */
1215 static int argbuf_index
;
1217 #ifdef MKTEMP_EACH_FILE
1218 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1221 static struct temp_name
{
1222 char *suffix
; /* suffix associated with the code. */
1223 int length
; /* strlen (suffix). */
1224 int unique
; /* Indicates whether %g or %u/%U was used. */
1225 char *filename
; /* associated filename. */
1226 int filename_length
; /* strlen (filename). */
1227 struct temp_name
*next
;
1231 /* Number of commands executed so far. */
1233 static int execution_count
;
1235 /* Number of commands that exited with a signal. */
1237 static int signal_count
;
1239 /* Name with which this program was invoked. */
1241 static char *programname
;
1243 /* Structures to keep track of prefixes to try when looking for files. */
1247 char *prefix
; /* String to prepend to the path. */
1248 struct prefix_list
*next
; /* Next in linked list. */
1249 int require_machine_suffix
; /* Don't use without machine_suffix. */
1250 /* 2 means try both machine_suffix and just_machine_suffix. */
1251 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1256 struct prefix_list
*plist
; /* List of prefixes to try */
1257 int max_len
; /* Max length of a prefix in PLIST */
1258 char *name
; /* Name of this list (used in config stuff) */
1261 /* List of prefixes to try when looking for executables. */
1263 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1265 /* List of prefixes to try when looking for startup (crt0) files. */
1267 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1269 /* List of prefixes to try when looking for include files. */
1271 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1273 /* Suffix to attach to directories searched for commands.
1274 This looks like `MACHINE/VERSION/'. */
1276 static char *machine_suffix
= 0;
1278 /* Suffix to attach to directories searched for commands.
1279 This is just `MACHINE/'. */
1281 static char *just_machine_suffix
= 0;
1283 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1285 static char *gcc_exec_prefix
;
1287 /* Default prefixes to attach to command names. */
1289 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1290 #undef MD_EXEC_PREFIX
1291 #undef MD_STARTFILE_PREFIX
1292 #undef MD_STARTFILE_PREFIX_1
1295 #ifndef STANDARD_EXEC_PREFIX
1296 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1297 #endif /* !defined STANDARD_EXEC_PREFIX */
1299 static char *standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1300 static char *standard_exec_prefix_1
= "/usr/lib/gcc/";
1301 #ifdef MD_EXEC_PREFIX
1302 static char *md_exec_prefix
= MD_EXEC_PREFIX
;
1305 #ifndef STANDARD_STARTFILE_PREFIX
1306 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1307 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1309 #ifdef MD_STARTFILE_PREFIX
1310 static char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1312 #ifdef MD_STARTFILE_PREFIX_1
1313 static char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1315 static char *standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1316 static char *standard_startfile_prefix_1
= "/lib/";
1317 static char *standard_startfile_prefix_2
= "/usr/lib/";
1319 #ifndef TOOLDIR_BASE_PREFIX
1320 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1322 static char *tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1323 static char *tooldir_prefix
;
1325 /* Subdirectory to use for locating libraries. Set by
1326 set_multilib_dir based on the compilation options. */
1328 static char *multilib_dir
;
1330 /* Clear out the vector of arguments (after a command is executed). */
1338 /* Add one argument to the vector at the end.
1339 This is done when a space is seen or at the end of the line.
1340 If DELETE_ALWAYS is nonzero, the arg is a filename
1341 and the file should be deleted eventually.
1342 If DELETE_FAILURE is nonzero, the arg is a filename
1343 and the file should be deleted if this compilation fails. */
1346 store_arg (arg
, delete_always
, delete_failure
)
1348 int delete_always
, delete_failure
;
1350 if (argbuf_index
+ 1 == argbuf_length
)
1352 = (char **) xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (char *));
1354 argbuf
[argbuf_index
++] = arg
;
1355 argbuf
[argbuf_index
] = 0;
1357 if (delete_always
|| delete_failure
)
1358 record_temp_file (arg
, delete_always
, delete_failure
);
1361 /* Read compilation specs from a file named FILENAME,
1362 replacing the default ones.
1364 A suffix which starts with `*' is a definition for
1365 one of the machine-specific sub-specs. The "suffix" should be
1366 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1367 The corresponding spec is stored in asm_spec, etc.,
1368 rather than in the `compilers' vector.
1370 Anything invalid in the file is a fatal error. */
1373 read_specs (filename
, main_p
)
1379 struct stat statbuf
;
1384 fprintf (stderr
, "Reading specs from %s\n", filename
);
1386 /* Open and stat the file. */
1387 desc
= open (filename
, O_RDONLY
, 0);
1389 pfatal_with_name (filename
);
1390 if (stat (filename
, &statbuf
) < 0)
1391 pfatal_with_name (filename
);
1393 /* Read contents of file into BUFFER. */
1394 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1395 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1397 pfatal_with_name (filename
);
1398 buffer
[readlen
] = 0;
1401 /* Scan BUFFER for specs, putting them in the vector. */
1407 char *in
, *out
, *p1
, *p2
, *p3
;
1409 /* Advance P in BUFFER to the next nonblank nocomment line. */
1410 p
= skip_whitespace (p
);
1414 /* Is this a special command that starts with '%'? */
1415 /* Don't allow this for the main specs file, since it would
1416 encourage people to overwrite it. */
1417 if (*p
== '%' && !main_p
)
1420 while (*p
&& *p
!= '\n')
1423 p
++; /* Skip '\n' */
1425 if (!strncmp (p1
, "%include", sizeof ("%include")-1)
1426 && (p1
[sizeof "%include" - 1] == ' '
1427 || p1
[sizeof "%include" - 1] == '\t'))
1431 p1
+= sizeof ("%include");
1432 while (*p1
== ' ' || *p1
== '\t')
1435 if (*p1
++ != '<' || p
[-2] != '>')
1436 fatal ("specs %%include syntax malformed after %d characters",
1440 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1441 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1444 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1445 && (p1
[sizeof "%include_noerr" - 1] == ' '
1446 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1450 p1
+= sizeof "%include_noerr";
1451 while (*p1
== ' ' || *p1
== '\t') p1
++;
1453 if (*p1
++ != '<' || p
[-2] != '>')
1454 fatal ("specs %%include syntax malformed after %d characters",
1458 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1460 read_specs (new_filename
, FALSE
);
1461 else if (verbose_flag
)
1462 fprintf (stderr
, "Could not find specs file %s\n", p1
);
1465 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1466 && (p1
[sizeof "%rename" - 1] == ' '
1467 || p1
[sizeof "%rename" - 1] == '\t'))
1470 struct spec_list
*sl
;
1472 /* Get original name */
1473 p1
+= sizeof "%rename";
1474 while (*p1
== ' ' || *p1
== '\t')
1477 if (! ISALPHA (*p1
))
1478 fatal ("specs %%rename syntax malformed after %d characters",
1482 while (*p2
&& !ISSPACE (*p2
))
1485 if (*p2
!= ' ' && *p2
!= '\t')
1486 fatal ("specs %%rename syntax malformed after %d characters",
1491 while (*p2
== ' ' || *p2
== '\t')
1494 if (! ISALPHA (*p2
))
1495 fatal ("specs %%rename syntax malformed after %d characters",
1498 /* Get new spec name */
1500 while (*p3
&& !ISSPACE (*p3
))
1504 fatal ("specs %%rename syntax malformed after %d characters",
1508 for (sl
= specs
; sl
; sl
= sl
->next
)
1509 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1513 fatal ("specs %s spec was not found to be renamed", p1
);
1515 if (strcmp (p1
, p2
) == 0)
1520 fprintf (stderr
, "rename spec %s to %s\n", p1
, p2
);
1522 fprintf (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
1526 set_spec (p2
, *(sl
->ptr_spec
));
1528 free (*(sl
->ptr_spec
));
1530 *(sl
->ptr_spec
) = "";
1535 fatal ("specs unknown %% command after %d characters",
1539 /* Find the colon that should end the suffix. */
1541 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1544 /* The colon shouldn't be missing. */
1546 fatal ("specs file malformed after %d characters", p1
- buffer
);
1548 /* Skip back over trailing whitespace. */
1550 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1553 /* Copy the suffix to a string. */
1554 suffix
= save_string (p
, p2
- p
);
1555 /* Find the next line. */
1556 p
= skip_whitespace (p1
+ 1);
1558 fatal ("specs file malformed after %d characters", p
- buffer
);
1561 /* Find next blank line. */
1562 while (*p1
&& !(*p1
== '\n' && p1
[1] == '\n'))
1565 /* Specs end at the blank line and do not include the newline. */
1566 spec
= save_string (p
, p1
- p
);
1569 /* Delete backslash-newline sequences from the spec. */
1574 if (in
[0] == '\\' && in
[1] == '\n')
1576 else if (in
[0] == '#')
1577 while (*in
&& *in
!= '\n')
1585 if (suffix
[0] == '*')
1587 if (! strcmp (suffix
, "*link_command"))
1588 link_command_spec
= spec
;
1590 set_spec (suffix
+ 1, spec
);
1594 /* Add this pair to the vector. */
1596 = ((struct compiler
*)
1597 xrealloc (compilers
,
1598 (n_compilers
+ 2) * sizeof (struct compiler
)));
1600 compilers
[n_compilers
].suffix
= suffix
;
1601 bzero ((char *) compilers
[n_compilers
].spec
,
1602 sizeof compilers
[n_compilers
].spec
);
1603 compilers
[n_compilers
].spec
[0] = spec
;
1605 bzero ((char *) &compilers
[n_compilers
],
1606 sizeof compilers
[n_compilers
]);
1610 link_command_spec
= spec
;
1613 if (link_command_spec
== 0)
1614 fatal ("spec file has no spec for linking");
1617 /* Record the names of temporary files we tell compilers to write,
1618 and delete them at the end of the run. */
1620 /* This is the common prefix we use to make temp file names.
1621 It is chosen once for each run of this program.
1622 It is substituted into a spec by %g.
1623 Thus, all temp file names contain this prefix.
1624 In practice, all temp file names start with this prefix.
1626 This prefix comes from the envvar TMPDIR if it is defined;
1627 otherwise, from the P_tmpdir macro if that is defined;
1628 otherwise, in /usr/tmp or /tmp;
1629 or finally the current directory if all else fails. */
1631 static char *temp_filename
;
1633 /* Length of the prefix. */
1635 static int temp_filename_length
;
1637 /* Define the list of temporary files to delete. */
1642 struct temp_file
*next
;
1645 /* Queue of files to delete on success or failure of compilation. */
1646 static struct temp_file
*always_delete_queue
;
1647 /* Queue of files to delete on failure of compilation. */
1648 static struct temp_file
*failure_delete_queue
;
1650 /* Record FILENAME as a file to be deleted automatically.
1651 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1652 otherwise delete it in any case.
1653 FAIL_DELETE nonzero means delete it if a compilation step fails;
1654 otherwise delete it in any case. */
1657 record_temp_file (filename
, always_delete
, fail_delete
)
1662 register char *name
;
1663 name
= xmalloc (strlen (filename
) + 1);
1664 strcpy (name
, filename
);
1668 register struct temp_file
*temp
;
1669 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1670 if (! strcmp (name
, temp
->name
))
1673 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1674 temp
->next
= always_delete_queue
;
1676 always_delete_queue
= temp
;
1683 register struct temp_file
*temp
;
1684 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1685 if (! strcmp (name
, temp
->name
))
1688 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1689 temp
->next
= failure_delete_queue
;
1691 failure_delete_queue
= temp
;
1697 /* Delete all the temporary files whose names we previously recorded. */
1700 delete_if_ordinary (name
)
1707 printf ("Delete %s? (y or n) ", name
);
1711 while ((c
= getchar ()) != '\n' && c
!= EOF
)
1714 if (i
== 'y' || i
== 'Y')
1716 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
1717 if (unlink (name
) < 0)
1719 perror_with_name (name
);
1723 delete_temp_files ()
1725 register struct temp_file
*temp
;
1727 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1728 delete_if_ordinary (temp
->name
);
1729 always_delete_queue
= 0;
1732 /* Delete all the files to be deleted on error. */
1735 delete_failure_queue ()
1737 register struct temp_file
*temp
;
1739 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1740 delete_if_ordinary (temp
->name
);
1744 clear_failure_queue ()
1746 failure_delete_queue
= 0;
1749 /* Routine to add variables to the environment. We do this to pass
1750 the pathname of the gcc driver, and the directories search to the
1751 collect2 program, which is being run as ld. This way, we can be
1752 sure of executing the right compiler when collect2 wants to build
1753 constructors and destructors. Since the environment variables we
1754 use come from an obstack, we don't have to worry about allocating
1763 #ifndef VMS /* nor about VMS */
1765 extern char **environ
;
1766 char **old_environ
= environ
;
1770 int str_len
= strlen (str
);
1774 while ((ch
= *p
++) != '\0' && ch
!= '=')
1780 /* Search for replacing an existing environment variable, and
1781 count the number of total environment variables. */
1782 for (envp
= old_environ
; *envp
; envp
++)
1785 if (!strncmp (str
, *envp
, name_len
))
1792 /* Add a new environment variable */
1793 environ
= (char **) xmalloc (sizeof (char *) * (num_envs
+2));
1795 bcopy ((char *) old_environ
, (char *) (environ
+ 1),
1796 sizeof (char *) * (num_envs
+1));
1801 #endif /* HAVE_PUTENV */
1804 /* Build a list of search directories from PATHS.
1805 PREFIX is a string to prepend to the list.
1806 If CHECK_DIR_P is non-zero we ensure the directory exists.
1807 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1808 It is also used by the --print-search-dirs flag. */
1811 build_search_list (paths
, prefix
, check_dir_p
)
1812 struct path_prefix
*paths
;
1816 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
1818 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
1819 int first_time
= TRUE
;
1820 struct prefix_list
*pprefix
;
1822 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
1824 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
1826 int len
= strlen (pprefix
->prefix
);
1830 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
1833 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1836 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1837 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
1840 if (just_machine_suffix
1841 && pprefix
->require_machine_suffix
== 2
1843 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
1846 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1849 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1850 obstack_grow (&collect_obstack
, just_machine_suffix
,
1854 if (! pprefix
->require_machine_suffix
)
1857 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1860 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1864 obstack_1grow (&collect_obstack
, '\0');
1865 return obstack_finish (&collect_obstack
);
1868 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1872 putenv_from_prefixes (paths
, env_var
)
1873 struct path_prefix
*paths
;
1876 putenv (build_search_list (paths
, env_var
, 1));
1879 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1880 access to check permissions.
1881 Return 0 if not found, otherwise return its name, allocated with malloc. */
1884 find_a_file (pprefix
, name
, mode
)
1885 struct path_prefix
*pprefix
;
1890 char *file_suffix
= ((mode
& X_OK
) != 0 ? EXECUTABLE_SUFFIX
: "");
1891 struct prefix_list
*pl
;
1892 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
1895 len
+= strlen (machine_suffix
);
1897 temp
= xmalloc (len
);
1899 /* Determine the filename to execute (special case for absolute paths). */
1901 if (*name
== '/' || *name
== DIR_SEPARATOR
1902 /* Check for disk name on MS-DOS-based systems. */
1903 || (DIR_SEPARATOR
== '\\' && name
[1] == ':'
1904 && (name
[2] == DIR_SEPARATOR
|| name
[2] == '/')))
1906 if (access (name
, mode
))
1908 strcpy (temp
, name
);
1913 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
1917 /* Some systems have a suffix for executable files.
1918 So try appending that first. */
1919 if (file_suffix
[0] != 0)
1921 strcpy (temp
, pl
->prefix
);
1922 strcat (temp
, machine_suffix
);
1923 strcat (temp
, name
);
1924 strcat (temp
, file_suffix
);
1925 if (access (temp
, mode
) == 0)
1927 if (pl
->used_flag_ptr
!= 0)
1928 *pl
->used_flag_ptr
= 1;
1933 /* Now try just the name. */
1934 strcpy (temp
, pl
->prefix
);
1935 strcat (temp
, machine_suffix
);
1936 strcat (temp
, name
);
1937 if (access (temp
, mode
) == 0)
1939 if (pl
->used_flag_ptr
!= 0)
1940 *pl
->used_flag_ptr
= 1;
1945 /* Certain prefixes are tried with just the machine type,
1946 not the version. This is used for finding as, ld, etc. */
1947 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
1949 /* Some systems have a suffix for executable files.
1950 So try appending that first. */
1951 if (file_suffix
[0] != 0)
1953 strcpy (temp
, pl
->prefix
);
1954 strcat (temp
, just_machine_suffix
);
1955 strcat (temp
, name
);
1956 strcat (temp
, file_suffix
);
1957 if (access (temp
, mode
) == 0)
1959 if (pl
->used_flag_ptr
!= 0)
1960 *pl
->used_flag_ptr
= 1;
1965 strcpy (temp
, pl
->prefix
);
1966 strcat (temp
, just_machine_suffix
);
1967 strcat (temp
, name
);
1968 if (access (temp
, mode
) == 0)
1970 if (pl
->used_flag_ptr
!= 0)
1971 *pl
->used_flag_ptr
= 1;
1976 /* Certain prefixes can't be used without the machine suffix
1977 when the machine or version is explicitly specified. */
1978 if (! pl
->require_machine_suffix
)
1980 /* Some systems have a suffix for executable files.
1981 So try appending that first. */
1982 if (file_suffix
[0] != 0)
1984 strcpy (temp
, pl
->prefix
);
1985 strcat (temp
, name
);
1986 strcat (temp
, file_suffix
);
1987 if (access (temp
, mode
) == 0)
1989 if (pl
->used_flag_ptr
!= 0)
1990 *pl
->used_flag_ptr
= 1;
1995 strcpy (temp
, pl
->prefix
);
1996 strcat (temp
, name
);
1997 if (access (temp
, mode
) == 0)
1999 if (pl
->used_flag_ptr
!= 0)
2000 *pl
->used_flag_ptr
= 1;
2010 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
2011 at the start of the list, otherwise it goes at the end.
2013 If WARN is nonzero, we will warn if no file is found
2014 through this prefix. WARN should point to an int
2015 which will be set to 1 if this entry is used.
2017 COMPONENT is the value to be passed to update_path.
2019 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2020 the complete value of machine_suffix.
2021 2 means try both machine_suffix and just_machine_suffix. */
2024 add_prefix (pprefix
, prefix
, component
, first
, require_machine_suffix
, warn
)
2025 struct path_prefix
*pprefix
;
2029 int require_machine_suffix
;
2032 struct prefix_list
*pl
, **prev
;
2035 if (! first
&& pprefix
->plist
)
2037 for (pl
= pprefix
->plist
; pl
->next
; pl
= pl
->next
)
2042 prev
= &pprefix
->plist
;
2044 /* Keep track of the longest prefix */
2046 prefix
= update_path (prefix
, component
);
2047 len
= strlen (prefix
);
2048 if (len
> pprefix
->max_len
)
2049 pprefix
->max_len
= len
;
2051 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
2052 pl
->prefix
= save_string (prefix
, len
);
2053 pl
->require_machine_suffix
= require_machine_suffix
;
2054 pl
->used_flag_ptr
= warn
;
2061 pl
->next
= (struct prefix_list
*) 0;
2065 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
2068 unused_prefix_warnings (pprefix
)
2069 struct path_prefix
*pprefix
;
2071 struct prefix_list
*pl
= pprefix
->plist
;
2075 if (pl
->used_flag_ptr
!= 0 && !*pl
->used_flag_ptr
)
2077 if (pl
->require_machine_suffix
&& machine_suffix
)
2078 error ("file path prefix `%s%s' never used", pl
->prefix
,
2081 error ("file path prefix `%s' never used", pl
->prefix
);
2083 /* Prevent duplicate warnings. */
2084 *pl
->used_flag_ptr
= 1;
2092 /* Execute the command specified by the arguments on the current line of spec.
2093 When using pipes, this includes several piped-together commands
2094 with `|' between them.
2096 Return 0 if successful, -1 if failed. */
2102 int n_commands
; /* # of command. */
2106 char *prog
; /* program name. */
2107 char **argv
; /* vector of args. */
2108 int pid
; /* pid of process for this command. */
2111 struct command
*commands
; /* each command buffer with above info. */
2113 /* Count # of piped commands. */
2114 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2115 if (strcmp (argbuf
[i
], "|") == 0)
2118 /* Get storage for each command. */
2120 = (struct command
*) alloca (n_commands
* sizeof (struct command
));
2122 /* Split argbuf into its separate piped processes,
2123 and record info about each one.
2124 Also search for the programs that are to be run. */
2126 commands
[0].prog
= argbuf
[0]; /* first command. */
2127 commands
[0].argv
= &argbuf
[0];
2128 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2130 commands
[0].argv
[0] = string
;
2132 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2133 if (strcmp (argbuf
[i
], "|") == 0)
2134 { /* each command. */
2135 #if defined (__MSDOS__) || (defined (_WIN32) && defined (__CYGWIN32_)) || defined (OS2) || defined (VMS)
2136 fatal ("-pipe not supported");
2138 argbuf
[i
] = 0; /* termination of command args. */
2139 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2140 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2141 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2143 commands
[n_commands
].argv
[0] = string
;
2147 argbuf
[argbuf_index
] = 0;
2149 /* If -v, print what we are about to do, and maybe query. */
2153 /* Print each piped command as a separate line. */
2154 for (i
= 0; i
< n_commands
; i
++)
2158 for (j
= commands
[i
].argv
; *j
; j
++)
2159 fprintf (stderr
, " %s", *j
);
2161 /* Print a pipe symbol after all but the last command. */
2162 if (i
+ 1 != n_commands
)
2163 fprintf (stderr
, " |");
2164 fprintf (stderr
, "\n");
2168 fprintf (stderr
, "\nGo ahead? (y or n) ");
2172 while (getchar () != '\n')
2175 if (i
!= 'y' && i
!= 'Y')
2180 /* Run each piped subprocess. */
2182 for (i
= 0; i
< n_commands
; i
++)
2184 char *errmsg_fmt
, *errmsg_arg
;
2185 char *string
= commands
[i
].argv
[0];
2187 commands
[i
].pid
= pexecute (string
, commands
[i
].argv
,
2188 programname
, temp_filename
,
2189 &errmsg_fmt
, &errmsg_arg
,
2190 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2191 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2192 | (string
== commands
[i
].prog
2193 ? PEXECUTE_SEARCH
: 0)
2194 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2196 if (commands
[i
].pid
== -1)
2197 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2199 if (string
!= commands
[i
].prog
)
2205 /* Wait for all the subprocesses to finish.
2206 We don't care what order they finish in;
2207 we know that N_COMMANDS waits will get them all.
2208 Ignore subprocesses that we don't know about,
2209 since they can be spawned by the process that exec'ed us. */
2214 for (i
= 0; i
< n_commands
; )
2220 pid
= pwait (commands
[i
].pid
, &status
, 0);
2224 for (j
= 0; j
< n_commands
; j
++)
2225 if (commands
[j
].pid
== pid
)
2230 if (WIFSIGNALED (status
))
2232 fatal ("Internal compiler error: program %s got fatal signal %d",
2233 commands
[j
].prog
, WTERMSIG (status
));
2237 else if (WIFEXITED (status
)
2238 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2248 /* Find all the switches given to us
2249 and make a vector describing them.
2250 The elements of the vector are strings, one per switch given.
2251 If a switch uses following arguments, then the `part1' field
2252 is the switch itself and the `args' field
2253 is a null-terminated vector containing the following arguments.
2254 The `live_cond' field is 1 if the switch is true in a conditional spec,
2255 -1 if false (overridden by a later switch), and is initialized to zero.
2256 The `valid' field is nonzero if any spec has looked at this switch;
2257 if it remains zero at the end of the run, it must be meaningless. */
2267 static struct switchstr
*switches
;
2269 static int n_switches
;
2277 /* Also a vector of input files specified. */
2279 static struct infile
*infiles
;
2281 static int n_infiles
;
2283 /* And a vector of corresponding output files is made up later. */
2285 static char **outfiles
;
2287 /* Used to track if none of the -B paths are used. */
2290 /* Used to track if standard path isn't used and -b or -V is specified. */
2291 static int warn_std
;
2293 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2294 static int *warn_std_ptr
= 0;
2297 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2299 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2300 is true if we should look for an executable suffix as well. */
2303 convert_filename (name
, do_exe
)
2308 int len
= strlen (name
);
2310 #ifdef HAVE_OBJECT_SUFFIX
2311 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2313 && name
[len
- 2] == '.'
2314 && name
[len
- 1] == 'o')
2316 obstack_grow (&obstack
, name
, len
- 2);
2317 obstack_grow0 (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
2318 name
= obstack_finish (&obstack
);
2322 #ifdef HAVE_EXECUTABLE_SUFFIX
2323 /* If there is no filetype, make it the executable suffix (which includes
2324 the "."). But don't get confused if we have just "-o". */
2325 if (! do_exe
|| EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2328 for (i
= len
- 1; i
>= 0; i
--)
2329 if (name
[i
] == '/' || name
[i
] == DIR_SEPARATOR
)
2332 for (i
++; i
< len
; i
++)
2336 obstack_grow (&obstack
, name
, len
);
2337 obstack_grow0 (&obstack
, EXECUTABLE_SUFFIX
, strlen (EXECUTABLE_SUFFIX
));
2338 name
= obstack_finish (&obstack
);
2345 /* Create the vector `switches' and its contents.
2346 Store its length in `n_switches'. */
2349 process_command (argc
, argv
)
2355 char *spec_lang
= 0;
2356 int last_language_n_infiles
;
2359 int lang_n_infiles
= 0;
2361 gcc_exec_prefix
= getenv ("GCC_EXEC_PREFIX");
2366 /* Figure compiler version from version string. */
2368 compiler_version
= save_string (version_string
, strlen (version_string
));
2369 for (temp
= compiler_version
; *temp
; ++temp
)
2378 /* Set up the default search paths. */
2380 if (gcc_exec_prefix
)
2382 add_prefix (&exec_prefixes
, gcc_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
2383 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
2386 /* COMPILER_PATH and LIBRARY_PATH have values
2387 that are lists of directory names with colons. */
2389 temp
= getenv ("COMPILER_PATH");
2392 char *startp
, *endp
;
2393 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2395 startp
= endp
= temp
;
2398 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2400 strncpy (nstore
, startp
, endp
-startp
);
2402 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2403 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2405 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2406 nstore
[endp
-startp
+1] = 0;
2409 nstore
[endp
-startp
] = 0;
2410 add_prefix (&exec_prefixes
, nstore
, 0, 0, 0, NULL_PTR
);
2411 add_prefix (&include_prefixes
,
2412 concat (nstore
, "include", NULL_PTR
),
2416 endp
= startp
= endp
+ 1;
2423 temp
= getenv ("LIBRARY_PATH");
2424 if (temp
&& *cross_compile
== '0')
2426 char *startp
, *endp
;
2427 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2429 startp
= endp
= temp
;
2432 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2434 strncpy (nstore
, startp
, endp
-startp
);
2436 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2437 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2439 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2440 nstore
[endp
-startp
+1] = 0;
2443 nstore
[endp
-startp
] = 0;
2444 add_prefix (&startfile_prefixes
, nstore
, NULL_PTR
,
2448 endp
= startp
= endp
+ 1;
2455 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2456 temp
= getenv ("LPATH");
2457 if (temp
&& *cross_compile
== '0')
2459 char *startp
, *endp
;
2460 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2462 startp
= endp
= temp
;
2465 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2467 strncpy (nstore
, startp
, endp
-startp
);
2469 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2470 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2472 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2473 nstore
[endp
-startp
+1] = 0;
2476 nstore
[endp
-startp
] = 0;
2477 add_prefix (&startfile_prefixes
, nstore
, NULL_PTR
,
2481 endp
= startp
= endp
+ 1;
2488 /* Convert new-style -- options to old-style. */
2489 translate_options (&argc
, &argv
);
2491 #ifdef LANG_SPECIFIC_DRIVER
2492 /* Do language-specific adjustment/addition of flags. */
2493 lang_specific_driver (fatal
, &argc
, &argv
);
2496 /* Scan argv twice. Here, the first time, just count how many switches
2497 there will be in their vector, and how many input files in theirs.
2498 Here we also parse the switches that cc itself uses (e.g. -v). */
2500 for (i
= 1; i
< argc
; i
++)
2502 if (! strcmp (argv
[i
], "-dumpspecs"))
2504 struct spec_list
*sl
;
2506 for (sl
= specs
; sl
; sl
= sl
->next
)
2507 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
2510 else if (! strcmp (argv
[i
], "-dumpversion"))
2512 printf ("%s\n", version_string
);
2515 else if (! strcmp (argv
[i
], "-dumpmachine"))
2517 printf ("%s\n", spec_machine
);
2520 else if (! strcmp (argv
[i
], "-print-search-dirs"))
2521 print_search_dirs
= 1;
2522 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2523 print_file_name
= "libgcc.a";
2524 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2525 print_file_name
= argv
[i
] + 17;
2526 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2527 print_prog_name
= argv
[i
] + 17;
2528 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2529 print_multi_lib
= 1;
2530 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2531 print_multi_directory
= 1;
2532 else if (! strncmp (argv
[i
], "-Wa,", 4))
2535 /* Pass the rest of this option to the assembler. */
2537 n_assembler_options
++;
2538 if (!assembler_options
)
2540 = (char **) xmalloc (n_assembler_options
* sizeof (char **));
2543 = (char **) xrealloc (assembler_options
,
2544 n_assembler_options
* sizeof (char **));
2546 /* Split the argument at commas. */
2548 for (j
= 4; argv
[i
][j
]; j
++)
2549 if (argv
[i
][j
] == ',')
2551 assembler_options
[n_assembler_options
- 1]
2552 = save_string (argv
[i
] + prev
, j
- prev
);
2553 n_assembler_options
++;
2555 = (char **) xrealloc (assembler_options
,
2556 n_assembler_options
* sizeof (char **));
2559 /* Record the part after the last comma. */
2560 assembler_options
[n_assembler_options
- 1] = argv
[i
] + prev
;
2562 else if (! strncmp (argv
[i
], "-Wp,", 4))
2565 /* Pass the rest of this option to the preprocessor. */
2567 n_preprocessor_options
++;
2568 if (!preprocessor_options
)
2569 preprocessor_options
2570 = (char **) xmalloc (n_preprocessor_options
* sizeof (char **));
2572 preprocessor_options
2573 = (char **) xrealloc (preprocessor_options
,
2574 n_preprocessor_options
* sizeof (char **));
2576 /* Split the argument at commas. */
2578 for (j
= 4; argv
[i
][j
]; j
++)
2579 if (argv
[i
][j
] == ',')
2581 preprocessor_options
[n_preprocessor_options
- 1]
2582 = save_string (argv
[i
] + prev
, j
- prev
);
2583 n_preprocessor_options
++;
2584 preprocessor_options
2585 = (char **) xrealloc (preprocessor_options
,
2586 n_preprocessor_options
* sizeof (char **));
2589 /* Record the part after the last comma. */
2590 preprocessor_options
[n_preprocessor_options
- 1] = argv
[i
] + prev
;
2592 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2593 /* The +e options to the C++ front-end. */
2595 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
2598 /* Split the argument at commas. */
2599 for (j
= 3; argv
[i
][j
]; j
++)
2600 n_infiles
+= (argv
[i
][j
] == ',');
2602 else if (strcmp (argv
[i
], "-Xlinker") == 0)
2605 fatal ("argument to `-Xlinker' is missing");
2610 else if (strncmp (argv
[i
], "-l", 2) == 0)
2612 else if (strcmp (argv
[i
], "-save-temps") == 0)
2614 save_temps_flag
= 1;
2617 else if (strcmp (argv
[i
], "-specs") == 0)
2619 struct user_specs
*user
= (struct user_specs
*)
2620 xmalloc (sizeof (struct user_specs
));
2622 fatal ("argument to `-specs' is missing");
2624 user
->next
= (struct user_specs
*)0;
2625 user
->filename
= argv
[i
];
2626 if (user_specs_tail
)
2627 user_specs_tail
->next
= user
;
2629 user_specs_head
= user
;
2630 user_specs_tail
= user
;
2632 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
2634 struct user_specs
*user
= (struct user_specs
*)
2635 xmalloc (sizeof (struct user_specs
));
2636 if (strlen (argv
[i
]) == 7)
2637 fatal ("argument to `-specs=' is missing");
2639 user
->next
= (struct user_specs
*)0;
2640 user
->filename
= argv
[i
]+7;
2641 if (user_specs_tail
)
2642 user_specs_tail
->next
= user
;
2644 user_specs_head
= user
;
2645 user_specs_tail
= user
;
2647 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
2649 register char *p
= &argv
[i
][1];
2650 register int c
= *p
;
2656 if (p
[1] == 0 && i
+ 1 == argc
)
2657 fatal ("argument to `-b' is missing");
2659 spec_machine
= argv
[++i
];
2661 spec_machine
= p
+ 1;
2663 warn_std_ptr
= &warn_std
;
2669 if (p
[1] == 0 && i
+ 1 == argc
)
2670 fatal ("argument to `-B' is missing");
2675 add_prefix (&exec_prefixes
, value
, NULL_PTR
, 1, 0, &warn_B
);
2676 add_prefix (&startfile_prefixes
, value
, NULL_PTR
,
2678 add_prefix (&include_prefixes
, concat (value
, "include",
2680 NULL_PTR
, 1, 0, NULL_PTR
);
2682 /* As a kludge, if the arg is "[foo/]stageN/", just add
2683 "[foo/]include" to the include prefix. */
2685 int len
= strlen (value
);
2688 && (value
[len
- 8] == '/'
2689 || value
[len
- 8] == DIR_SEPARATOR
)))
2690 && strncmp (value
+ len
- 7, "stage", 5) == 0
2691 && ISDIGIT (value
[len
- 2])
2692 && (value
[len
- 1] == '/'
2693 || value
[len
- 1] == DIR_SEPARATOR
))
2696 add_prefix (&include_prefixes
, "include", NULL_PTR
,
2700 char *string
= xmalloc (len
+ 1);
2701 strncpy (string
, value
, len
-7);
2702 strcpy (string
+len
-7, "include");
2703 add_prefix (&include_prefixes
, string
, NULL_PTR
,
2712 case 'v': /* Print our subcommands and print versions. */
2714 /* If they do anything other than exactly `-v', don't set
2715 verbose_flag; rather, continue on to give the error. */
2723 if (p
[1] == 0 && i
+ 1 == argc
)
2724 fatal ("argument to `-V' is missing");
2726 spec_version
= argv
[++i
];
2728 spec_version
= p
+ 1;
2729 compiler_version
= spec_version
;
2730 warn_std_ptr
= &warn_std
;
2744 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
2745 argv
[i
] = convert_filename (argv
[i
], 1);
2747 argv
[i
+1] = convert_filename (argv
[i
+1], 1);
2755 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2756 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2757 else if (WORD_SWITCH_TAKES_ARG (p
))
2758 i
+= WORD_SWITCH_TAKES_ARG (p
);
2768 if (have_c
&& have_o
&& lang_n_infiles
> 1)
2769 fatal ("cannot specify -o with -c and multiple compilations");
2771 /* Set up the search paths before we go looking for config files. */
2773 /* These come before the md prefixes so that we will find gcc's subcommands
2774 (such as cpp) rather than those of the host system. */
2775 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2776 as well as trying the machine and the version. */
2778 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
2779 0, 2, warn_std_ptr
);
2780 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
2781 0, 2, warn_std_ptr
);
2784 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
2785 0, 1, warn_std_ptr
);
2786 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, "BINUTILS",
2787 0, 1, warn_std_ptr
);
2789 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
2790 dir_separator_str
, NULL_PTR
);
2792 /* If tooldir is relative, base it on exec_prefixes. A relative
2793 tooldir lets us move the installed tree as a unit.
2795 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2796 directories, so that we can search both the user specified directory
2797 and the standard place. */
2799 if (*tooldir_prefix
!= '/' && *tooldir_prefix
!= DIR_SEPARATOR
)
2801 if (gcc_exec_prefix
)
2803 char *gcc_exec_tooldir_prefix
2804 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
2805 spec_version
, dir_separator_str
, tooldir_prefix
, NULL_PTR
);
2807 add_prefix (&exec_prefixes
,
2808 concat (gcc_exec_tooldir_prefix
, "bin",
2809 dir_separator_str
, NULL_PTR
),
2810 NULL_PTR
, 0, 0, NULL_PTR
);
2811 add_prefix (&startfile_prefixes
,
2812 concat (gcc_exec_tooldir_prefix
, "lib",
2813 dir_separator_str
, NULL_PTR
),
2814 NULL_PTR
, 0, 0, NULL_PTR
);
2817 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
2818 dir_separator_str
, spec_version
,
2819 dir_separator_str
, tooldir_prefix
, NULL_PTR
);
2822 add_prefix (&exec_prefixes
,
2823 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL_PTR
),
2824 "BINUTILS", 0, 0, NULL_PTR
);
2825 add_prefix (&startfile_prefixes
,
2826 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL_PTR
),
2827 "BINUTILS", 0, 0, NULL_PTR
);
2829 /* More prefixes are enabled in main, after we read the specs file
2830 and determine whether this is cross-compilation or not. */
2833 /* Then create the space for the vectors and scan again. */
2835 switches
= ((struct switchstr
*)
2836 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
2837 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
2840 last_language_n_infiles
= -1;
2842 /* This, time, copy the text of each switch and store a pointer
2843 to the copy in the vector of switches.
2844 Store all the infiles in their vector. */
2846 for (i
= 1; i
< argc
; i
++)
2848 /* Just skip the switches that were handled by the preceding loop. */
2849 if (! strncmp (argv
[i
], "-Wa,", 4))
2851 else if (! strncmp (argv
[i
], "-Wp,", 4))
2853 else if (! strcmp (argv
[i
], "-print-search-dirs"))
2855 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2857 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2859 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2861 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2863 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2865 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2867 /* Compensate for the +e options to the C++ front-end;
2868 they're there simply for cfront call-compatibility. We do
2869 some magic in default_compilers to pass them down properly.
2870 Note we deliberately start at the `+' here, to avoid passing
2871 -e0 or -e1 down into the linker. */
2872 switches
[n_switches
].part1
= &argv
[i
][0];
2873 switches
[n_switches
].args
= 0;
2874 switches
[n_switches
].live_cond
= 0;
2875 switches
[n_switches
].valid
= 0;
2878 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
2881 /* Split the argument at commas. */
2883 for (j
= 4; argv
[i
][j
]; j
++)
2884 if (argv
[i
][j
] == ',')
2886 infiles
[n_infiles
].language
= 0;
2887 infiles
[n_infiles
++].name
2888 = save_string (argv
[i
] + prev
, j
- prev
);
2891 /* Record the part after the last comma. */
2892 infiles
[n_infiles
].language
= 0;
2893 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
2895 else if (strcmp (argv
[i
], "-Xlinker") == 0)
2897 infiles
[n_infiles
].language
= 0;
2898 infiles
[n_infiles
++].name
= argv
[++i
];
2900 else if (strncmp (argv
[i
], "-l", 2) == 0)
2902 infiles
[n_infiles
].language
= 0;
2903 infiles
[n_infiles
++].name
= argv
[i
];
2905 else if (strcmp (argv
[i
], "-specs") == 0)
2907 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
2909 /* -save-temps overrides -pipe, so that temp files are produced */
2910 else if (save_temps_flag
&& strcmp (argv
[i
], "-pipe") == 0)
2911 error ("Warning: -pipe ignored since -save-temps specified");
2912 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
2914 register char *p
= &argv
[i
][1];
2915 register int c
= *p
;
2919 if (p
[1] == 0 && i
+ 1 == argc
)
2920 fatal ("argument to `-x' is missing");
2922 spec_lang
= argv
[++i
];
2925 if (! strcmp (spec_lang
, "none"))
2926 /* Suppress the warning if -xnone comes after the last input
2927 file, because alternate command interfaces like g++ might
2928 find it useful to place -xnone after each input file. */
2931 last_language_n_infiles
= n_infiles
;
2934 switches
[n_switches
].part1
= p
;
2935 /* Deal with option arguments in separate argv elements. */
2936 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2937 || WORD_SWITCH_TAKES_ARG (p
))
2940 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
2944 /* Count only the option arguments in separate argv elements. */
2945 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2947 if (i
+ n_args
>= argc
)
2948 fatal ("argument to `-%s' is missing", p
);
2949 switches
[n_switches
].args
2950 = (char **) xmalloc ((n_args
+ 1) * sizeof (char *));
2952 switches
[n_switches
].args
[j
++] = argv
[++i
];
2953 /* Null-terminate the vector. */
2954 switches
[n_switches
].args
[j
] = 0;
2956 else if (index (switches_need_spaces
, c
))
2958 /* On some systems, ld cannot handle some options without
2959 a space. So split the option from its argument. */
2960 char *part1
= (char *) xmalloc (2);
2964 switches
[n_switches
].part1
= part1
;
2965 switches
[n_switches
].args
= (char **) xmalloc (2 * sizeof (char *));
2966 switches
[n_switches
].args
[0] = xmalloc (strlen (p
));
2967 strcpy (switches
[n_switches
].args
[0], &p
[1]);
2968 switches
[n_switches
].args
[1] = 0;
2971 switches
[n_switches
].args
= 0;
2973 switches
[n_switches
].live_cond
= 0;
2974 switches
[n_switches
].valid
= 0;
2975 /* This is always valid, since gcc.c itself understands it. */
2976 if (!strcmp (p
, "save-temps"))
2977 switches
[n_switches
].valid
= 1;
2980 char ch
= switches
[n_switches
].part1
[0];
2981 if (ch
== 'V' || ch
== 'b' || ch
== 'B')
2982 switches
[n_switches
].valid
= 1;
2988 #ifdef HAVE_OBJECT_SUFFIX
2989 argv
[i
] = convert_filename (argv
[i
], 0);
2992 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], R_OK
) < 0)
2994 perror_with_name (argv
[i
]);
2999 infiles
[n_infiles
].language
= spec_lang
;
3000 infiles
[n_infiles
++].name
= argv
[i
];
3005 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
3006 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
3008 switches
[n_switches
].part1
= 0;
3009 infiles
[n_infiles
].name
= 0;
3012 /* Process a spec string, accumulating and running commands. */
3014 /* These variables describe the input file name.
3015 input_file_number is the index on outfiles of this file,
3016 so that the output file name can be stored for later use by %o.
3017 input_basename is the start of the part of the input file
3018 sans all directory names, and basename_length is the number
3019 of characters starting there excluding the suffix .c or whatever. */
3021 static char *input_filename
;
3022 static int input_file_number
;
3023 static size_t input_filename_length
;
3024 static int basename_length
;
3025 static char *input_basename
;
3026 static char *input_suffix
;
3028 /* These are variables used within do_spec and do_spec_1. */
3030 /* Nonzero if an arg has been started and not yet terminated
3031 (with space, tab or newline). */
3032 static int arg_going
;
3034 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3035 is a temporary file name. */
3036 static int delete_this_arg
;
3038 /* Nonzero means %w has been seen; the next arg to be terminated
3039 is the output file name of this compilation. */
3040 static int this_is_output_file
;
3042 /* Nonzero means %s has been seen; the next arg to be terminated
3043 is the name of a library file and we should try the standard
3044 search dirs for it. */
3045 static int this_is_library_file
;
3047 /* Nonzero means that the input of this command is coming from a pipe. */
3048 static int input_from_pipe
;
3050 /* Process the spec SPEC and run the commands specified therein.
3051 Returns 0 if the spec is successfully processed; -1 if failed. */
3061 delete_this_arg
= 0;
3062 this_is_output_file
= 0;
3063 this_is_library_file
= 0;
3064 input_from_pipe
= 0;
3066 value
= do_spec_1 (spec
, 0, NULL_PTR
);
3068 /* Force out any unfinished command.
3069 If -pipe, this forces out the last command if it ended in `|'. */
3072 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3075 if (argbuf_index
> 0)
3082 /* Process the sub-spec SPEC as a portion of a larger spec.
3083 This is like processing a whole spec except that we do
3084 not initialize at the beginning and we do not supply a
3085 newline by default at the end.
3086 INSWITCH nonzero means don't process %-sequences in SPEC;
3087 in this case, % is treated as an ordinary character.
3088 This is used while substituting switches.
3089 INSWITCH nonzero also causes SPC not to terminate an argument.
3091 Value is zero unless a line was finished
3092 and the command on that line reported an error. */
3095 do_spec_1 (spec
, inswitch
, soft_matched_part
)
3098 char *soft_matched_part
;
3100 register char *p
= spec
;
3107 /* If substituting a switch, treat all chars like letters.
3108 Otherwise, NL, SPC, TAB and % are special. */
3109 switch (inswitch
? 'a' : c
)
3112 /* End of line: finish any pending argument,
3113 then run the pending command if one has been started. */
3116 obstack_1grow (&obstack
, 0);
3117 string
= obstack_finish (&obstack
);
3118 if (this_is_library_file
)
3119 string
= find_file (string
);
3120 store_arg (string
, delete_this_arg
, this_is_output_file
);
3121 if (this_is_output_file
)
3122 outfiles
[input_file_number
] = string
;
3126 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3128 for (i
= 0; i
< n_switches
; i
++)
3129 if (!strcmp (switches
[i
].part1
, "pipe"))
3132 /* A `|' before the newline means use a pipe here,
3133 but only if -pipe was specified.
3134 Otherwise, execute now and don't pass the `|' as an arg. */
3137 input_from_pipe
= 1;
3138 switches
[i
].valid
= 1;
3145 if (argbuf_index
> 0)
3151 /* Reinitialize for a new command, and for a new argument. */
3154 delete_this_arg
= 0;
3155 this_is_output_file
= 0;
3156 this_is_library_file
= 0;
3157 input_from_pipe
= 0;
3161 /* End any pending argument. */
3164 obstack_1grow (&obstack
, 0);
3165 string
= obstack_finish (&obstack
);
3166 if (this_is_library_file
)
3167 string
= find_file (string
);
3168 store_arg (string
, delete_this_arg
, this_is_output_file
);
3169 if (this_is_output_file
)
3170 outfiles
[input_file_number
] = string
;
3174 obstack_1grow (&obstack
, c
);
3180 /* Space or tab ends an argument if one is pending. */
3183 obstack_1grow (&obstack
, 0);
3184 string
= obstack_finish (&obstack
);
3185 if (this_is_library_file
)
3186 string
= find_file (string
);
3187 store_arg (string
, delete_this_arg
, this_is_output_file
);
3188 if (this_is_output_file
)
3189 outfiles
[input_file_number
] = string
;
3191 /* Reinitialize for a new argument. */
3193 delete_this_arg
= 0;
3194 this_is_output_file
= 0;
3195 this_is_library_file
= 0;
3202 fatal ("Invalid specification! Bug in cc.");
3205 obstack_grow (&obstack
, input_basename
, basename_length
);
3210 delete_this_arg
= 2;
3213 /* Dump out the directories specified with LIBRARY_PATH,
3214 followed by the absolute directories
3215 that we search for startfiles. */
3218 struct prefix_list
*pl
= startfile_prefixes
.plist
;
3219 size_t bufsize
= 100;
3220 char *buffer
= (char *) xmalloc (bufsize
);
3223 for (; pl
; pl
= pl
->next
)
3225 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3226 /* Used on systems which record the specified -L dirs
3227 and use them to search for dynamic linking. */
3228 /* Relative directories always come from -B,
3229 and it is better not to use them for searching
3230 at run time. In particular, stage1 loses */
3231 if (pl
->prefix
[0] != '/' && pl
->prefix
[0] != DIR_SEPARATOR
)
3234 /* Try subdirectory if there is one. */
3235 if (multilib_dir
!= NULL
)
3239 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
3241 bufsize
= (strlen (pl
->prefix
)
3242 + strlen (machine_suffix
)) * 2 + 1;
3243 buffer
= (char *) xrealloc (buffer
, bufsize
);
3244 strcpy (buffer
, pl
->prefix
);
3245 strcat (buffer
, machine_suffix
);
3246 if (is_directory (buffer
, multilib_dir
, 1))
3248 do_spec_1 ("-L", 0, NULL_PTR
);
3249 #ifdef SPACE_AFTER_L_OPTION
3250 do_spec_1 (" ", 0, NULL_PTR
);
3252 do_spec_1 (buffer
, 1, NULL_PTR
);
3253 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3254 /* Make this a separate argument. */
3255 do_spec_1 (" ", 0, NULL_PTR
);
3258 if (!pl
->require_machine_suffix
)
3260 if (is_directory (pl
->prefix
, multilib_dir
, 1))
3262 do_spec_1 ("-L", 0, NULL_PTR
);
3263 #ifdef SPACE_AFTER_L_OPTION
3264 do_spec_1 (" ", 0, NULL_PTR
);
3266 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3267 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3268 /* Make this a separate argument. */
3269 do_spec_1 (" ", 0, NULL_PTR
);
3275 if (is_directory (pl
->prefix
, machine_suffix
, 1))
3277 do_spec_1 ("-L", 0, NULL_PTR
);
3278 #ifdef SPACE_AFTER_L_OPTION
3279 do_spec_1 (" ", 0, NULL_PTR
);
3281 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3282 /* Remove slash from machine_suffix. */
3283 if (strlen (machine_suffix
) >= bufsize
)
3284 bufsize
= strlen (machine_suffix
) * 2 + 1;
3285 buffer
= (char *) xrealloc (buffer
, bufsize
);
3286 strcpy (buffer
, machine_suffix
);
3287 idx
= strlen (buffer
);
3288 if (buffer
[idx
- 1] == '/'
3289 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3290 buffer
[idx
- 1] = 0;
3291 do_spec_1 (buffer
, 1, NULL_PTR
);
3292 /* Make this a separate argument. */
3293 do_spec_1 (" ", 0, NULL_PTR
);
3296 if (!pl
->require_machine_suffix
)
3298 if (is_directory (pl
->prefix
, "", 1))
3300 do_spec_1 ("-L", 0, NULL_PTR
);
3301 #ifdef SPACE_AFTER_L_OPTION
3302 do_spec_1 (" ", 0, NULL_PTR
);
3304 /* Remove slash from pl->prefix. */
3305 if (strlen (pl
->prefix
) >= bufsize
)
3306 bufsize
= strlen (pl
->prefix
) * 2 + 1;
3307 buffer
= (char *) xrealloc (buffer
, bufsize
);
3308 strcpy (buffer
, pl
->prefix
);
3309 idx
= strlen (buffer
);
3310 if (buffer
[idx
- 1] == '/'
3311 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3312 buffer
[idx
- 1] = 0;
3313 do_spec_1 (buffer
, 1, NULL_PTR
);
3314 /* Make this a separate argument. */
3315 do_spec_1 (" ", 0, NULL_PTR
);
3324 /* {...:%efoo} means report an error with `foo' as error message
3325 and don't execute any more commands for this file. */
3329 while (*p
!= 0 && *p
!= '\n') p
++;
3330 buf
= (char *) alloca (p
- q
+ 1);
3331 strncpy (buf
, q
, p
- q
);
3341 if (save_temps_flag
)
3343 obstack_grow (&obstack
, input_basename
, basename_length
);
3344 delete_this_arg
= 0;
3348 #ifdef MKTEMP_EACH_FILE
3349 /* ??? This has a problem: the total number of
3350 values mktemp can return is limited.
3351 That matters for the names of object files.
3352 In 2.4, do something about that. */
3353 struct temp_name
*t
;
3355 while (*p
== '.' || ISALPHA (*p
)
3356 || (p
[0] == '%' && p
[1] == 'O'))
3359 /* See if we already have an association of %g/%u/%U and
3361 for (t
= temp_names
; t
; t
= t
->next
)
3362 if (t
->length
== p
- suffix
3363 && strncmp (t
->suffix
, suffix
, p
- suffix
) == 0
3364 && t
->unique
== (c
!= 'g'))
3367 /* Make a new association if needed. %u requires one. */
3368 if (t
== 0 || c
== 'u')
3372 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
3373 t
->next
= temp_names
;
3376 t
->length
= p
- suffix
;
3377 t
->suffix
= save_string (suffix
, p
- suffix
);
3378 t
->unique
= (c
!= 'g');
3379 temp_filename
= choose_temp_base ();
3380 temp_filename_length
= strlen (temp_filename
);
3381 t
->filename
= temp_filename
;
3382 t
->filename_length
= temp_filename_length
;
3385 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
3386 delete_this_arg
= 1;
3388 obstack_grow (&obstack
, temp_filename
, temp_filename_length
);
3389 if (c
== 'u' || c
== 'U')
3395 sprintf (buff
, "%d", unique
);
3396 obstack_grow (&obstack
, buff
, strlen (buff
));
3399 delete_this_arg
= 1;
3405 obstack_grow (&obstack
, input_filename
, input_filename_length
);
3411 struct prefix_list
*pl
= include_prefixes
.plist
;
3413 if (gcc_exec_prefix
)
3415 do_spec_1 ("-iprefix", 1, NULL_PTR
);
3416 /* Make this a separate argument. */
3417 do_spec_1 (" ", 0, NULL_PTR
);
3418 do_spec_1 (gcc_exec_prefix
, 1, NULL_PTR
);
3419 do_spec_1 (" ", 0, NULL_PTR
);
3422 for (; pl
; pl
= pl
->next
)
3424 do_spec_1 ("-isystem", 1, NULL_PTR
);
3425 /* Make this a separate argument. */
3426 do_spec_1 (" ", 0, NULL_PTR
);
3427 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3428 do_spec_1 (" ", 0, NULL_PTR
);
3434 for (i
= 0; i
< n_infiles
; i
++)
3435 store_arg (outfiles
[i
], 0, 0);
3439 obstack_grow (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
3444 this_is_library_file
= 1;
3448 this_is_output_file
= 1;
3453 int cur_index
= argbuf_index
;
3454 /* Handle the {...} following the %W. */
3457 p
= handle_braces (p
+ 1);
3460 /* If any args were output, mark the last one for deletion
3462 if (argbuf_index
!= cur_index
)
3463 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
3467 /* %x{OPTION} records OPTION for %X to output. */
3473 /* Skip past the option value and make a copy. */
3478 string
= save_string (p1
+ 1, p
- p1
- 2);
3480 /* See if we already recorded this option. */
3481 for (i
= 0; i
< n_linker_options
; i
++)
3482 if (! strcmp (string
, linker_options
[i
]))
3488 /* This option is new; add it. */
3490 if (!linker_options
)
3492 = (char **) xmalloc (n_linker_options
* sizeof (char **));
3495 = (char **) xrealloc (linker_options
,
3496 n_linker_options
* sizeof (char **));
3498 linker_options
[n_linker_options
- 1] = string
;
3502 /* Dump out the options accumulated previously using %x. */
3504 for (i
= 0; i
< n_linker_options
; i
++)
3506 do_spec_1 (linker_options
[i
], 1, NULL_PTR
);
3507 /* Make each accumulated option a separate argument. */
3508 do_spec_1 (" ", 0, NULL_PTR
);
3512 /* Dump out the options accumulated previously using -Wa,. */
3514 for (i
= 0; i
< n_assembler_options
; i
++)
3516 do_spec_1 (assembler_options
[i
], 1, NULL_PTR
);
3517 /* Make each accumulated option a separate argument. */
3518 do_spec_1 (" ", 0, NULL_PTR
);
3522 /* Dump out the options accumulated previously using -Wp,. */
3524 for (i
= 0; i
< n_preprocessor_options
; i
++)
3526 do_spec_1 (preprocessor_options
[i
], 1, NULL_PTR
);
3527 /* Make each accumulated option a separate argument. */
3528 do_spec_1 (" ", 0, NULL_PTR
);
3532 /* Here are digits and numbers that just process
3533 a certain constant string as a spec. */
3536 value
= do_spec_1 (cc1_spec
, 0, NULL_PTR
);
3542 value
= do_spec_1 (cc1plus_spec
, 0, NULL_PTR
);
3548 value
= do_spec_1 (asm_spec
, 0, NULL_PTR
);
3554 value
= do_spec_1 (asm_final_spec
, 0, NULL_PTR
);
3560 value
= do_spec_1 (signed_char_spec
, 0, NULL_PTR
);
3566 value
= do_spec_1 (cpp_spec
, 0, NULL_PTR
);
3572 value
= do_spec_1 (endfile_spec
, 0, NULL_PTR
);
3578 value
= do_spec_1 (link_spec
, 0, NULL_PTR
);
3584 value
= do_spec_1 (lib_spec
, 0, NULL_PTR
);
3590 value
= do_spec_1 (libgcc_spec
, 0, NULL_PTR
);
3597 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
3601 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3605 if (! strncmp (y
, "-D", 2))
3606 /* Copy the whole option. */
3607 while (*y
&& *y
!= ' ' && *y
!= '\t')
3609 else if (*y
== ' ' || *y
== '\t')
3610 /* Copy whitespace to the result. */
3612 /* Don't copy other options. */
3619 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3627 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
3631 /* Copy all of CPP_PREDEFINES into BUF,
3632 but put __ after every -D and at the end of each arg. */
3636 if (! strncmp (y
, "-D", 2))
3644 || (*(y
+1) != '_' && ! ISUPPER (*(y
+1))))
3646 /* Stick __ at front of macro name. */
3649 /* Arrange to stick __ at the end as well. */
3653 /* Copy the macro name. */
3654 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3663 /* Copy the value given, if any. */
3664 while (*y
&& *y
!= ' ' && *y
!= '\t')
3667 else if (*y
== ' ' || *y
== '\t')
3668 /* Copy whitespace to the result. */
3670 /* Don't copy -A options */
3676 /* Copy all of CPP_PREDEFINES into BUF,
3677 but put __ after every -D. */
3681 if (! strncmp (y
, "-D", 2))
3686 || (*(y
+1) != '_' && ! ISUPPER (*(y
+1))))
3688 /* Stick -D__ at front of macro name. */
3694 /* Copy the macro name. */
3695 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3698 /* Copy the value given, if any. */
3699 while (*y
&& *y
!= ' ' && *y
!= '\t')
3704 /* Do not copy this macro - we have just done it before */
3705 while (*y
&& *y
!= ' ' && *y
!= '\t')
3709 else if (*y
== ' ' || *y
== '\t')
3710 /* Copy whitespace to the result. */
3712 /* Don't copy -A options */
3718 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3722 if (! strncmp (y
, "-A", 2))
3723 /* Copy the whole option. */
3724 while (*y
&& *y
!= ' ' && *y
!= '\t')
3726 else if (*y
== ' ' || *y
== '\t')
3727 /* Copy whitespace to the result. */
3729 /* Don't copy other options. */
3736 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3743 value
= do_spec_1 (startfile_spec
, 0, NULL_PTR
);
3748 /* Here we define characters other than letters and digits. */
3751 p
= handle_braces (p
);
3757 obstack_1grow (&obstack
, '%');
3761 do_spec_1 (soft_matched_part
, 1, NULL_PTR
);
3762 do_spec_1 (" ", 0, NULL_PTR
);
3765 /* Process a string found as the value of a spec given by name.
3766 This feature allows individual machine descriptions
3767 to add and use their own specs.
3768 %[...] modifies -D options the way %P does;
3769 %(...) uses the spec unmodified. */
3774 struct spec_list
*sl
;
3777 /* The string after the S/P is the name of a spec that is to be
3779 while (*p
&& *p
!= ')' && *p
!= ']')
3782 /* See if it's in the list */
3783 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
3784 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
3786 name
= *(sl
->ptr_spec
);
3788 fprintf (stderr
, "Processing spec %c%s%c, which is '%s'\n",
3789 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
3798 value
= do_spec_1 (name
, 0, NULL_PTR
);
3804 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
3808 /* Copy all of NAME into BUF, but put __ after
3809 every -D and at the end of each arg, */
3814 if (! strncmp (y
, "-D", 2))
3824 else if (flag
&& (*y
== ' ' || *y
== '\t' || *y
== '='
3825 || *y
== '}' || *y
== 0))
3838 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3844 /* Discard the closing paren or bracket. */
3852 int c1
= *p
++; /* Select first or second version number. */
3853 char *v
= compiler_version
;
3856 /* The format of the version string is
3857 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3859 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3860 while (! ISDIGIT (*v
))
3862 if (v
> compiler_version
&& v
[-1] != '-')
3865 /* If desired, advance to second version number. */
3868 /* Set V after the first period. */
3869 while (ISDIGIT (*v
))
3876 /* Set Q at the next period or at the end. */
3878 while (ISDIGIT (*q
))
3880 if (*q
!= 0 && *q
!= ' ' && *q
!= '.' && *q
!= '-')
3883 /* Put that part into the command. */
3884 obstack_grow (&obstack
, v
, q
- v
);
3890 if (input_from_pipe
)
3891 do_spec_1 ("-", 0, NULL_PTR
);
3900 /* Backslash: treat next character as ordinary. */
3905 /* Ordinary character: put it into the current argument. */
3906 obstack_1grow (&obstack
, c
);
3910 return 0; /* End of string */
3913 /* Return 0 if we call do_spec_1 and that returns -1. */
3924 int include_blanks
= 1;
3927 /* A '^' after the open-brace means to not give blanks before args. */
3928 include_blanks
= 0, ++p
;
3931 /* A `|' after the open-brace means,
3932 if the test fails, output a single minus sign rather than nothing.
3933 This is used in %{|!pipe:...}. */
3937 /* A `!' after the open-brace negates the condition:
3938 succeed if the specified switch is not present. */
3942 /* A `.' after the open-brace means test against the current suffix. */
3952 while (*p
!= ':' && *p
!= '}') p
++;
3955 register int count
= 1;
3973 int found
= (input_suffix
!= 0
3974 && strlen (input_suffix
) == p
- filter
3975 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
3981 && do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
3986 else if (p
[-1] == '*' && p
[0] == '}')
3988 /* Substitute all matching switches as separate args. */
3991 for (i
= 0; i
< n_switches
; i
++)
3992 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
3993 && check_live_switch (i
, p
- filter
))
3994 give_switch (i
, 0, include_blanks
);
3998 /* Test for presence of the specified switch. */
4002 /* If name specified ends in *, as in {x*:...},
4003 check for %* and handle that case. */
4004 if (p
[-1] == '*' && !negate
)
4009 /* First see whether we have %*. */
4013 if (*r
== '%' && r
[1] == '*')
4017 /* If we do, handle that case. */
4020 /* Substitute all matching switches as separate args.
4021 But do this by substituting for %*
4022 in the text that follows the colon. */
4024 unsigned hard_match_len
= p
- filter
- 1;
4025 char *string
= save_string (p
+ 1, q
- p
- 2);
4027 for (i
= 0; i
< n_switches
; i
++)
4028 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4029 && check_live_switch (i
, -1))
4031 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
4032 /* Pass any arguments this switch has. */
4033 give_switch (i
, 1, 1);
4040 /* If name specified ends in *, as in {x*:...},
4041 check for presence of any switch name starting with x. */
4044 for (i
= 0; i
< n_switches
; i
++)
4046 unsigned hard_match_len
= p
- filter
- 1;
4048 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4049 && check_live_switch (i
, hard_match_len
))
4055 /* Otherwise, check for presence of exact name specified. */
4058 for (i
= 0; i
< n_switches
; i
++)
4060 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4061 && switches
[i
].part1
[p
- filter
] == 0
4062 && check_live_switch (i
, -1))
4070 /* If it is as desired (present for %{s...}, absent for %{-s...})
4071 then substitute either the switch or the specified
4072 conditional text. */
4073 if (present
!= negate
)
4077 give_switch (i
, 0, include_blanks
);
4081 if (do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
4087 /* Here if a %{|...} conditional fails: output a minus sign,
4088 which means "standard output" or "standard input". */
4089 do_spec_1 ("-", 0, NULL_PTR
);
4096 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4097 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4098 spec, or -1 if either exact match or %* is used.
4100 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4101 whose value does not begin with "no-" is obsoleted by the same value
4102 with the "no-", similarly for a switch with the "no-" prefix. */
4105 check_live_switch (switchnum
, prefix_length
)
4109 char *name
= switches
[switchnum
].part1
;
4112 /* In the common case of {<at-most-one-letter>*}, a negating
4113 switch would always match, so ignore that case. We will just
4114 send the conflicting switches to the compiler phase. */
4115 if (prefix_length
>= 0 && prefix_length
<= 1)
4118 /* If we already processed this switch and determined if it was
4119 live or not, return our past determination. */
4120 if (switches
[switchnum
].live_cond
!= 0)
4121 return switches
[switchnum
].live_cond
> 0;
4123 /* Now search for duplicate in a manner that depends on the name. */
4127 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4128 if (switches
[i
].part1
[0] == 'O')
4130 switches
[switchnum
].valid
= 1;
4131 switches
[switchnum
].live_cond
= -1;
4136 case 'W': case 'f': case 'm':
4137 if (! strncmp (name
+ 1, "no-", 3))
4139 /* We have Xno-YYY, search for XYYY. */
4140 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4141 if (switches
[i
].part1
[0] == name
[0]
4142 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
4144 switches
[switchnum
].valid
= 1;
4145 switches
[switchnum
].live_cond
= -1;
4151 /* We have XYYY, search for Xno-YYY. */
4152 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4153 if (switches
[i
].part1
[0] == name
[0]
4154 && switches
[i
].part1
[1] == 'n'
4155 && switches
[i
].part1
[2] == 'o'
4156 && switches
[i
].part1
[3] == '-'
4157 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
4159 switches
[switchnum
].valid
= 1;
4160 switches
[switchnum
].live_cond
= -1;
4167 /* Otherwise the switch is live. */
4168 switches
[switchnum
].live_cond
= 1;
4172 /* Pass a switch to the current accumulating command
4173 in the same form that we received it.
4174 SWITCHNUM identifies the switch; it is an index into
4175 the vector of switches gcc received, which is `switches'.
4176 This cannot fail since it never finishes a command line.
4178 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4180 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
4184 give_switch (switchnum
, omit_first_word
, include_blanks
)
4186 int omit_first_word
;
4189 if (!omit_first_word
)
4191 do_spec_1 ("-", 0, NULL_PTR
);
4192 do_spec_1 (switches
[switchnum
].part1
, 1, NULL_PTR
);
4195 if (switches
[switchnum
].args
!= 0)
4198 for (p
= switches
[switchnum
].args
; *p
; p
++)
4201 do_spec_1 (" ", 0, NULL_PTR
);
4202 do_spec_1 (*p
, 1, NULL_PTR
);
4206 do_spec_1 (" ", 0, NULL_PTR
);
4207 switches
[switchnum
].valid
= 1;
4210 /* Search for a file named NAME trying various prefixes including the
4211 user's -B prefix and some standard ones.
4212 Return the absolute file name found. If nothing is found, return NAME. */
4220 /* Try multilib_dir if it is defined. */
4221 if (multilib_dir
!= NULL
)
4225 try = (char *) alloca (strlen (multilib_dir
) + strlen (name
) + 2);
4226 strcpy (try, multilib_dir
);
4227 strcat (try, dir_separator_str
);
4230 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
4232 /* If we don't find it in the multi library dir, then fall
4233 through and look for it in the normal places. */
4234 if (newname
!= NULL
)
4238 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
4239 return newname
? newname
: name
;
4242 /* Determine whether a directory exists. If LINKER, return 0 for
4243 certain fixed names not needed by the linker. If not LINKER, it is
4244 only important to return 0 if the host machine has a small ARG_MAX
4248 is_directory (path1
, path2
, linker
)
4253 int len1
= strlen (path1
);
4254 int len2
= strlen (path2
);
4255 char *path
= (char *) alloca (3 + len1
+ len2
);
4259 #ifndef SMALL_ARG_MAX
4264 /* Construct the path from the two parts. Ensure the string ends with "/.".
4265 The resulting path will be a directory even if the given path is a
4267 bcopy (path1
, path
, len1
);
4268 bcopy (path2
, path
+ len1
, len2
);
4269 cp
= path
+ len1
+ len2
;
4270 if (cp
[-1] != '/' && cp
[-1] != DIR_SEPARATOR
)
4271 *cp
++ = DIR_SEPARATOR
;
4275 /* Exclude directories that the linker is known to search. */
4278 && strcmp (path
, concat (dir_separator_str
, "lib",
4279 dir_separator_str
, ".", NULL_PTR
)) == 0)
4281 && strcmp (path
, concat (dir_separator_str
, "usr",
4282 dir_separator_str
, "lib",
4283 dir_separator_str
, ".", NULL_PTR
)) == 0)))
4286 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
4289 /* On fatal signals, delete all the temporary files. */
4292 fatal_error (signum
)
4295 signal (signum
, SIG_DFL
);
4296 delete_failure_queue ();
4297 delete_temp_files ();
4298 /* Get the same signal again, this time not handled,
4299 so its normal effect occurs. */
4300 kill (getpid (), signum
);
4311 int linker_was_run
= 0;
4312 char *explicit_link_files
;
4315 struct user_specs
*uptr
;
4317 p
= argv
[0] + strlen (argv
[0]);
4318 while (p
!= argv
[0] && p
[-1] != '/' && p
[-1] != DIR_SEPARATOR
) --p
;
4321 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
4322 signal (SIGINT
, fatal_error
);
4324 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
4325 signal (SIGHUP
, fatal_error
);
4327 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
4328 signal (SIGTERM
, fatal_error
);
4330 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
4331 signal (SIGPIPE
, fatal_error
);
4335 argbuf
= (char **) xmalloc (argbuf_length
* sizeof (char *));
4337 obstack_init (&obstack
);
4339 /* Build multilib_select, et. al from the separate lines that make up each
4340 multilib selection. */
4342 char **q
= multilib_raw
;
4345 obstack_init (&multilib_obstack
);
4346 while ((p
= *q
++) != (char *) 0)
4347 obstack_grow (&multilib_obstack
, p
, strlen (p
));
4349 obstack_1grow (&multilib_obstack
, 0);
4350 multilib_select
= obstack_finish (&multilib_obstack
);
4352 q
= multilib_matches_raw
;
4353 while ((p
= *q
++) != (char *) 0)
4354 obstack_grow (&multilib_obstack
, p
, strlen (p
));
4356 obstack_1grow (&multilib_obstack
, 0);
4357 multilib_matches
= obstack_finish (&multilib_obstack
);
4361 i
< sizeof (multilib_defaults_raw
) / sizeof (multilib_defaults_raw
[0]);
4365 obstack_1grow (&multilib_obstack
, ' ');
4366 obstack_grow (&multilib_obstack
,
4367 multilib_defaults_raw
[i
],
4368 strlen (multilib_defaults_raw
[i
]));
4372 obstack_1grow (&multilib_obstack
, 0);
4373 multilib_defaults
= obstack_finish (&multilib_obstack
);
4376 /* Set up to remember the pathname of gcc and any options
4377 needed for collect. We use argv[0] instead of programname because
4378 we need the complete pathname. */
4379 obstack_init (&collect_obstack
);
4380 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4381 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0])+1);
4382 putenv (obstack_finish (&collect_obstack
));
4384 #ifdef INIT_ENVIRONMENT
4385 /* Set up any other necessary machine specific environment variables. */
4386 putenv (INIT_ENVIRONMENT
);
4389 /* Choose directory for temp files. */
4391 temp_filename
= choose_temp_base ();
4392 temp_filename_length
= strlen (temp_filename
);
4394 /* Make a table of what switches there are (switches, n_switches).
4395 Make a table of specified input files (infiles, n_infiles).
4396 Decode switches that are handled locally. */
4398 process_command (argc
, argv
);
4403 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4405 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4406 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4409 for (i
= 0; i
< n_switches
; i
++)
4414 obstack_grow (&collect_obstack
, " ", 1);
4417 obstack_grow (&collect_obstack
, "'-", 2);
4418 q
= switches
[i
].part1
;
4419 while ((p
= (char *) index (q
,'\'')))
4421 obstack_grow (&collect_obstack
, q
, p
-q
);
4422 obstack_grow (&collect_obstack
, "'\\''", 4);
4425 obstack_grow (&collect_obstack
, q
, strlen (q
));
4426 obstack_grow (&collect_obstack
, "'", 1);
4428 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4430 obstack_grow (&collect_obstack
, " '", 2);
4432 while ((p
= (char *) index (q
,'\'')))
4434 obstack_grow (&collect_obstack
, q
, p
-q
);
4435 obstack_grow (&collect_obstack
, "'\\''", 4);
4438 obstack_grow (&collect_obstack
, q
, strlen (q
));
4439 obstack_grow (&collect_obstack
, "'", 1);
4442 obstack_grow (&collect_obstack
, "\0", 1);
4443 putenv (obstack_finish (&collect_obstack
));
4446 /* Initialize the vector of specs to just the default.
4447 This means one element containing 0s, as a terminator. */
4449 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
4450 bcopy ((char *) default_compilers
, (char *) compilers
,
4451 sizeof default_compilers
);
4452 n_compilers
= n_default_compilers
;
4454 /* Read specs from a file if there is one. */
4456 machine_suffix
= concat (spec_machine
, dir_separator_str
,
4457 spec_version
, dir_separator_str
, NULL_PTR
);
4458 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL_PTR
);
4460 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
4461 /* Read the specs file unless it is a default one. */
4462 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
4463 read_specs (specs_file
, TRUE
);
4467 /* We need to check standard_exec_prefix/just_machine_suffix/specs
4468 for any override of as, ld and libraries. */
4469 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
4470 + strlen (just_machine_suffix
)
4471 + sizeof ("specs"));
4473 strcpy (specs_file
, standard_exec_prefix
);
4474 strcat (specs_file
, just_machine_suffix
);
4475 strcat (specs_file
, "specs");
4476 if (access (specs_file
, R_OK
) == 0)
4477 read_specs (specs_file
, TRUE
);
4479 /* Process any user specified specs in the order given on the command
4481 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
4483 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
, R_OK
);
4484 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
4487 /* If not cross-compiling, look for startfiles in the standard places. */
4488 /* The fact that these are done here, after reading the specs file,
4489 means that it cannot be found in these directories.
4490 But that's okay. It should never be there anyway. */
4491 if (*cross_compile
== '0')
4493 #ifdef MD_EXEC_PREFIX
4494 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
4495 add_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
4498 #ifdef MD_STARTFILE_PREFIX
4499 add_prefix (&startfile_prefixes
, md_startfile_prefix
, "GCC",
4503 #ifdef MD_STARTFILE_PREFIX_1
4504 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, "GCC",
4508 /* If standard_startfile_prefix is relative, base it on
4509 standard_exec_prefix. This lets us move the installed tree
4510 as a unit. If GCC_EXEC_PREFIX is defined, base
4511 standard_startfile_prefix on that as well. */
4512 if (*standard_startfile_prefix
== '/'
4513 || *standard_startfile_prefix
== DIR_SEPARATOR
)
4514 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, "BINUTILS",
4518 if (gcc_exec_prefix
)
4519 add_prefix (&startfile_prefixes
,
4520 concat (gcc_exec_prefix
, machine_suffix
,
4521 standard_startfile_prefix
, NULL_PTR
),
4522 NULL_PTR
, 0, 0, NULL_PTR
);
4523 add_prefix (&startfile_prefixes
,
4524 concat (standard_exec_prefix
,
4526 standard_startfile_prefix
, NULL_PTR
),
4527 NULL_PTR
, 0, 0, NULL_PTR
);
4530 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
4531 "BINUTILS", 0, 0, NULL_PTR
);
4532 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
4533 "BINUTILS", 0, 0, NULL_PTR
);
4534 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4535 add_prefix (&startfile_prefixes
, "./", NULL_PTR
, 0, 1, NULL_PTR
);
4540 if (*standard_startfile_prefix
!= DIR_SEPARATOR
&& gcc_exec_prefix
)
4541 add_prefix (&startfile_prefixes
,
4542 concat (gcc_exec_prefix
, machine_suffix
,
4543 standard_startfile_prefix
, NULL_PTR
),
4544 "BINUTILS", 0, 0, NULL_PTR
);
4547 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4548 if (gcc_exec_prefix
)
4550 char * temp
= (char *) xmalloc (strlen (gcc_exec_prefix
)
4551 + strlen (spec_version
)
4552 + strlen (spec_machine
) + 3);
4553 strcpy (temp
, gcc_exec_prefix
);
4554 strcat (temp
, spec_machine
);
4555 strcat (temp
, dir_separator_str
);
4556 strcat (temp
, spec_version
);
4557 strcat (temp
, dir_separator_str
);
4558 gcc_exec_prefix
= temp
;
4561 /* Now we have the specs.
4562 Set the `valid' bits for switches that match anything in any spec. */
4564 validate_all_switches ();
4566 /* Now that we have the switches and the specs, set
4567 the subdirectory based on the options. */
4568 set_multilib_dir ();
4570 /* Warn about any switches that no pass was interested in. */
4572 for (i
= 0; i
< n_switches
; i
++)
4573 if (! switches
[i
].valid
)
4574 error ("unrecognized option `-%s'", switches
[i
].part1
);
4576 /* Obey some of the options. */
4578 if (print_search_dirs
)
4580 printf ("install: %s%s\n", standard_exec_prefix
, machine_suffix
);
4581 printf ("programs: %s\n", build_search_list (&exec_prefixes
, "", 0));
4582 printf ("libraries: %s\n", build_search_list (&startfile_prefixes
, "", 0));
4586 if (print_file_name
)
4588 printf ("%s\n", find_file (print_file_name
));
4592 if (print_prog_name
)
4594 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
4595 printf ("%s\n", (newname
? newname
: print_prog_name
));
4599 if (print_multi_lib
)
4601 print_multilib_info ();
4605 if (print_multi_directory
)
4607 if (multilib_dir
== NULL
)
4610 printf ("%s\n", multilib_dir
);
4618 /* compiler_version is truncated at the first space when initialized
4619 from version string, so truncate version_string at the first space
4620 before comparing. */
4621 for (n
= 0; version_string
[n
]; n
++)
4622 if (version_string
[n
] == ' ')
4625 if (! strncmp (version_string
, compiler_version
, n
)
4626 && compiler_version
[n
] == 0)
4627 fprintf (stderr
, "gcc version %s\n", version_string
);
4629 fprintf (stderr
, "gcc driver version %s executing gcc version %s\n",
4630 version_string
, compiler_version
);
4637 fatal ("No input files");
4639 /* Make a place to record the compiler output file names
4640 that correspond to the input files. */
4642 outfiles
= (char **) xmalloc (n_infiles
* sizeof (char *));
4643 bzero ((char *) outfiles
, n_infiles
* sizeof (char *));
4645 /* Record which files were specified explicitly as link input. */
4647 explicit_link_files
= xmalloc (n_infiles
);
4648 bzero (explicit_link_files
, n_infiles
);
4650 for (i
= 0; i
< n_infiles
; i
++)
4652 register struct compiler
*cp
= 0;
4653 int this_file_error
= 0;
4655 /* Tell do_spec what to substitute for %i. */
4657 input_filename
= infiles
[i
].name
;
4658 input_filename_length
= strlen (input_filename
);
4659 input_file_number
= i
;
4661 /* Use the same thing in %o, unless cp->spec says otherwise. */
4663 outfiles
[i
] = input_filename
;
4665 /* Figure out which compiler from the file's suffix. */
4667 cp
= lookup_compiler (infiles
[i
].name
, input_filename_length
,
4668 infiles
[i
].language
);
4672 /* Ok, we found an applicable compiler. Run its spec. */
4673 /* First say how much of input_filename to substitute for %b */
4677 if (cp
->spec
[0][0] == '#')
4678 error ("%s: %s compiler not installed on this system",
4679 input_filename
, &cp
->spec
[0][1]);
4681 input_basename
= input_filename
;
4682 for (p
= input_filename
; *p
; p
++)
4683 if (*p
== '/' || *p
== DIR_SEPARATOR
)
4684 input_basename
= p
+ 1;
4686 /* Find a suffix starting with the last period,
4687 and set basename_length to exclude that suffix. */
4688 basename_length
= strlen (input_basename
);
4689 p
= input_basename
+ basename_length
;
4690 while (p
!= input_basename
&& *p
!= '.') --p
;
4691 if (*p
== '.' && p
!= input_basename
)
4693 basename_length
= p
- input_basename
;
4694 input_suffix
= p
+ 1;
4700 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4702 len
+= strlen (cp
->spec
[j
]);
4704 p
= (char *) xmalloc (len
+ 1);
4707 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4710 strcpy (p
+ len
, cp
->spec
[j
]);
4711 len
+= strlen (cp
->spec
[j
]);
4714 value
= do_spec (p
);
4717 this_file_error
= 1;
4720 /* If this file's name does not contain a recognized suffix,
4721 record it as explicit linker input. */
4724 explicit_link_files
[i
] = 1;
4726 /* Clear the delete-on-failure queue, deleting the files in it
4727 if this compilation failed. */
4729 if (this_file_error
)
4731 delete_failure_queue ();
4734 /* If this compilation succeeded, don't delete those files later. */
4735 clear_failure_queue ();
4738 /* Run ld to link all the compiler output files. */
4740 if (error_count
== 0)
4742 int tmp
= execution_count
;
4744 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4746 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH=");
4747 putenv_from_prefixes (&startfile_prefixes
, "LIBRARY_PATH=");
4749 value
= do_spec (link_command_spec
);
4752 linker_was_run
= (tmp
!= execution_count
);
4755 /* Warn if a -B option was specified but the prefix was never used. */
4756 unused_prefix_warnings (&exec_prefixes
);
4757 unused_prefix_warnings (&startfile_prefixes
);
4759 /* If options said don't run linker,
4760 complain about input files to be given to the linker. */
4762 if (! linker_was_run
&& error_count
== 0)
4763 for (i
= 0; i
< n_infiles
; i
++)
4764 if (explicit_link_files
[i
])
4765 error ("%s: linker input file unused since linking not done",
4768 /* Delete some or all of the temporary files we made. */
4771 delete_failure_queue ();
4772 delete_temp_files ();
4774 exit (error_count
> 0 ? (signal_count
? 2 : 1) : 0);
4779 /* Find the proper compilation spec for the file name NAME,
4780 whose length is LENGTH. LANGUAGE is the specified language,
4781 or 0 if none specified. */
4783 static struct compiler
*
4784 lookup_compiler (name
, length
, language
)
4789 struct compiler
*cp
;
4791 /* Look for the language, if one is spec'd. */
4794 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4798 if (cp
->suffix
[0] == '@'
4799 && !strcmp (cp
->suffix
+ 1, language
))
4803 error ("language %s not recognized", language
);
4806 /* Look for a suffix. */
4807 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4809 if (/* The suffix `-' matches only the file name `-'. */
4810 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
4812 (strlen (cp
->suffix
) < length
4813 /* See if the suffix matches the end of NAME. */
4815 && (!strcmp (cp
->suffix
,
4816 name
+ length
- strlen (cp
->suffix
))
4817 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4818 && !strcasecmp (cp
->suffix
,
4819 name
+ length
- strlen (cp
->suffix
)))))
4821 && !strcmp (cp
->suffix
,
4822 name
+ length
- strlen (cp
->suffix
))))
4825 if (cp
->spec
[0][0] == '@')
4827 struct compiler
*new;
4828 /* An alias entry maps a suffix to a language.
4829 Search for the language; pass 0 for NAME and LENGTH
4830 to avoid infinite recursion if language not found.
4831 Construct the new compiler spec. */
4832 language
= cp
->spec
[0] + 1;
4833 new = (struct compiler
*) xmalloc (sizeof (struct compiler
));
4834 new->suffix
= cp
->suffix
;
4835 bcopy ((char *) lookup_compiler (NULL_PTR
, 0, language
)->spec
,
4836 (char *) new->spec
, sizeof new->spec
);
4839 /* A non-alias entry: return it. */
4851 register char *value
= (char *) malloc (size
);
4853 fatal ("virtual memory exhausted");
4858 xrealloc (ptr
, size
)
4862 register char *value
= (char *) realloc (ptr
, size
);
4864 fatal ("virtual memory exhausted");
4868 /* This function is based on the one in libiberty. */
4871 concat
VPROTO((char *first
, ...))
4873 register int length
;
4874 register char *newstr
;
4882 /* First compute the size of the result and get sufficient memory. */
4884 VA_START (args
, first
);
4886 first
= va_arg (args
, char *);
4894 length
+= strlen (arg
);
4895 arg
= va_arg (args
, char *);
4898 newstr
= (char *) xmalloc (length
+ 1);
4901 /* Now copy the individual pieces to the result string. */
4903 VA_START (args
, first
);
4905 first
= va_arg (args
, char *);
4914 arg
= va_arg (args
, char *);
4923 save_string (s
, len
)
4927 register char *result
= xmalloc (len
+ 1);
4929 bcopy (s
, result
, len
);
4935 pfatal_with_name (name
)
4938 fatal ("%s: %s", name
, my_strerror (errno
));
4942 perror_with_name (name
)
4945 error ("%s: %s", name
, my_strerror (errno
));
4949 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
4955 /* Space for trailing '\0' is in %s. */
4956 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
4957 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
4961 fatal ("%s: %s", errmsg_fmt
, my_strerror (errno
));
4964 /* More 'friendly' abort that prints the line and file.
4965 config.h can #define abort fancy_abort if you like that sort of thing. */
4970 fatal ("Internal gcc abort.");
4975 /* Output an error message and exit */
4978 fatal
VPROTO((char *format
, ...))
4985 VA_START (ap
, format
);
4988 format
= va_arg (ap
, char *);
4991 fprintf (stderr
, "%s: ", programname
);
4992 vfprintf (stderr
, format
, ap
);
4994 fprintf (stderr
, "\n");
4995 delete_temp_files ();
5000 error
VPROTO((char *format
, ...))
5007 VA_START (ap
, format
);
5010 format
= va_arg (ap
, char *);
5013 fprintf (stderr
, "%s: ", programname
);
5014 vfprintf (stderr
, format
, ap
);
5017 fprintf (stderr
, "\n");
5020 #else /* not HAVE_VPRINTF */
5023 fatal (msg
, arg1
, arg2
)
5024 char *msg
, *arg1
, *arg2
;
5026 error (msg
, arg1
, arg2
);
5027 delete_temp_files ();
5032 error (msg
, arg1
, arg2
)
5033 char *msg
, *arg1
, *arg2
;
5035 fprintf (stderr
, "%s: ", programname
);
5036 fprintf (stderr
, msg
, arg1
, arg2
);
5037 fprintf (stderr
, "\n");
5040 #endif /* not HAVE_VPRINTF */
5044 validate_all_switches ()
5046 struct compiler
*comp
;
5049 struct spec_list
*spec
;
5051 for (comp
= compilers
; comp
->spec
[0]; comp
++)
5054 for (i
= 0; i
< sizeof comp
->spec
/ sizeof comp
->spec
[0] && comp
->spec
[i
]; i
++)
5058 if (c
== '%' && *p
== '{')
5059 /* We have a switch spec. */
5060 validate_switches (p
+ 1);
5064 /* look through the linked list of specs read from the specs file */
5065 for (spec
= specs
; spec
; spec
= spec
->next
)
5067 p
= *(spec
->ptr_spec
);
5069 if (c
== '%' && *p
== '{')
5070 /* We have a switch spec. */
5071 validate_switches (p
+ 1);
5074 p
= link_command_spec
;
5076 if (c
== '%' && *p
== '{')
5077 /* We have a switch spec. */
5078 validate_switches (p
+ 1);
5081 /* Look at the switch-name that comes after START
5082 and mark as valid all supplied switches that match it. */
5085 validate_switches (start
)
5088 register char *p
= start
;
5103 while (*p
!= ':' && *p
!= '}') p
++;
5107 else if (p
[-1] == '*')
5109 /* Mark all matching switches as valid. */
5111 for (i
= 0; i
< n_switches
; i
++)
5112 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
))
5113 switches
[i
].valid
= 1;
5117 /* Mark an exact matching switch as valid. */
5118 for (i
= 0; i
< n_switches
; i
++)
5120 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
5121 && switches
[i
].part1
[p
- filter
] == 0)
5122 switches
[i
].valid
= 1;
5127 /* Check whether a particular argument was used. The first time we
5128 canonicalize the switches to keep only the ones we care about. */
5142 static struct mswitchstr
*mswitches
;
5143 static int n_mswitches
;
5148 struct mswitchstr
*matches
;
5152 /* Break multilib_matches into the component strings of string and replacement
5154 for (q
= multilib_matches
; *q
!= '\0'; q
++)
5158 matches
= (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
5160 q
= multilib_matches
;
5171 matches
[i
].len
= q
- matches
[i
].str
;
5173 matches
[i
].replace
= ++q
;
5174 while (*q
!= ';' && *q
!= '\0')
5180 matches
[i
].rep_len
= q
- matches
[i
].replace
;
5188 /* Now build a list of the replacement string for switches that we care
5189 about. Make sure we allocate at least one entry. This prevents
5190 xmalloc from calling fatal, and prevents us from re-executing this
5193 = (struct mswitchstr
*) xmalloc ((sizeof (struct mswitchstr
))
5194 * (n_switches
? n_switches
: 1));
5195 for (i
= 0; i
< n_switches
; i
++)
5197 int xlen
= strlen (switches
[i
].part1
);
5198 for (j
= 0; j
< cnt
; j
++)
5199 if (xlen
== matches
[j
].len
&& ! strcmp (switches
[i
].part1
, matches
[j
].str
))
5201 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
5202 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
5203 mswitches
[n_mswitches
].replace
= (char *)0;
5204 mswitches
[n_mswitches
].rep_len
= 0;
5211 for (i
= 0; i
< n_mswitches
; i
++)
5212 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
5219 default_arg (p
, len
)
5225 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+1)
5227 while (*start
== ' ' || *start
== '\t')
5233 for (end
= start
+1; *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
5236 if ((end
- start
) == len
&& strncmp (p
, start
, len
) == 0)
5246 /* Work out the subdirectory to use based on the
5247 options. The format of multilib_select is a list of elements.
5248 Each element is a subdirectory name followed by a list of options
5249 followed by a semicolon. gcc will consider each line in turn. If
5250 none of the options beginning with an exclamation point are
5251 present, and all of the other options are present, that
5252 subdirectory will be used. */
5257 char *p
= multilib_select
;
5259 char *this_path
, *this_arg
;
5265 /* Ignore newlines. */
5272 /* Get the initial path. */
5280 this_path_len
= p
- this_path
;
5282 /* Check the arguments. */
5297 while (*p
!= ' ' && *p
!= ';')
5304 if (*this_arg
!= '!')
5312 /* If this is a default argument, we can just ignore it.
5313 This is true even if this_arg begins with '!'. Beginning
5314 with '!' does not mean that this argument is necessarily
5315 inappropriate for this library: it merely means that
5316 there is a more specific library which uses this
5317 argument. If this argument is a default, we need not
5318 consider that more specific library. */
5319 if (! default_arg (this_arg
, p
- this_arg
))
5321 ok
= used_arg (this_arg
, p
- this_arg
);
5332 if (this_path_len
!= 1
5333 || this_path
[0] != '.')
5335 multilib_dir
= xmalloc (this_path_len
+ 1);
5336 strncpy (multilib_dir
, this_path
, this_path_len
);
5337 multilib_dir
[this_path_len
] = '\0';
5346 /* Print out the multiple library subdirectory selection
5347 information. This prints out a series of lines. Each line looks
5348 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5349 required. Only the desired options are printed out, the negative
5350 matches. The options are print without a leading dash. There are
5351 no spaces to make it easy to use the information in the shell.
5352 Each subdirectory is printed only once. This assumes the ordering
5353 generated by the genmultilib script. */
5356 print_multilib_info ()
5358 char *p
= multilib_select
;
5359 char *last_path
= 0, *this_path
;
5361 int last_path_len
= 0;
5365 /* Ignore newlines. */
5372 /* Get the initial path. */
5381 /* If this is a duplicate, skip it. */
5382 skip
= (last_path
!= 0 && p
- this_path
== last_path_len
5383 && ! strncmp (last_path
, this_path
, last_path_len
));
5385 last_path
= this_path
;
5386 last_path_len
= p
- this_path
;
5388 /* If this directory requires any default arguments, we can skip
5389 it. We will already have printed a directory identical to
5390 this one which does not require that default argument. */
5408 while (*q
!= ' ' && *q
!= ';')
5416 && default_arg (arg
, q
- arg
))
5431 for (p1
= last_path
; p1
< p
; p1
++)
5450 use_arg
= *p
!= '!';
5455 while (*p
!= ' ' && *p
!= ';')
5470 /* If there are extra options, print them now */
5471 if (multilib_extra
&& *multilib_extra
)
5473 int print_at
= TRUE
;
5476 for (q
= multilib_extra
; *q
!= '\0'; q
++)