1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92-96, 1997 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 <sys/types.h>
43 #include <sys/file.h> /* May get R_OK, etc. on some systems. */
47 #include "gansidecl.h"
62 /* ??? Need to find a GCC header to put these in. */
63 extern int pexecute
PROTO ((const char *, char * const *, const char *,
64 const char *, char **, char **, int));
65 extern int pwait
PROTO ((int, int *, int));
66 extern char *update_path
PROTO((char *, char *));
67 /* Flag arguments to pexecute. */
68 #define PEXECUTE_FIRST 1
69 #define PEXECUTE_LAST 2
70 #define PEXECUTE_SEARCH 4
71 #define PEXECUTE_VERBOSE 8
74 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
77 #define WTERMSIG(S) ((S) & 0x7f)
80 #define WIFEXITED(S) (((S) & 0xff) == 0)
83 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
87 #define exit __posix_exit
90 /* Define O_RDONLY if the system hasn't defined it for us. */
99 /* Test if something is a normal file. */
101 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
104 /* Test if something is a directory. */
106 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
109 /* By default there is no special suffix for executables. */
110 #ifdef EXECUTABLE_SUFFIX
111 #define HAVE_EXECUTABLE_SUFFIX
113 #define EXECUTABLE_SUFFIX ""
116 /* By default, the suffix for object files is ".o". */
118 #define HAVE_OBJECT_SUFFIX
120 #define OBJECT_SUFFIX ".o"
123 /* By default, colon separates directories in a path. */
124 #ifndef PATH_SEPARATOR
125 #define PATH_SEPARATOR ':'
128 #ifndef DIR_SEPARATOR
129 #define DIR_SEPARATOR '/'
132 static char dir_separator_str
[] = {DIR_SEPARATOR
, 0};
134 #define obstack_chunk_alloc xmalloc
135 #define obstack_chunk_free free
138 extern char *getenv ();
140 extern char *choose_temp_base
PROTO((void));
146 #ifndef HAVE_STRERROR
148 extern char *sys_errlist
[];
150 extern char *strerror();
153 /* If a stage of compilation returns an exit status >= 1,
154 compilation of that file ceases. */
156 #define MIN_FATAL_STATUS 1
158 /* Flag saying to print the directories gcc will search through looking for
159 programs, libraries, etc. */
161 static int print_search_dirs
;
163 /* Flag saying to print the full filename of this file
164 as found through our usual search mechanism. */
166 static char *print_file_name
= NULL
;
168 /* As print_file_name, but search for executable file. */
170 static char *print_prog_name
= NULL
;
172 /* Flag saying to print the relative path we'd use to
173 find libgcc.a given the current compiler flags. */
175 static int print_multi_directory
;
177 /* Flag saying to print the list of subdirectories and
178 compiler flags used to select them in a standard form. */
180 static int print_multi_lib
;
182 /* Flag indicating whether we should print the command and arguments */
184 static int verbose_flag
;
186 /* Nonzero means write "temp" files in source directory
187 and use the source file's name in them, and don't delete them. */
189 static int save_temps_flag
;
191 /* The compiler version. */
193 static char *compiler_version
;
195 /* The target version specified with -V */
197 static char *spec_version
= DEFAULT_TARGET_VERSION
;
199 /* The target machine specified with -b. */
201 static char *spec_machine
= DEFAULT_TARGET_MACHINE
;
203 /* Nonzero if cross-compiling.
204 When -b is used, the value comes from the `specs' file. */
207 static char *cross_compile
= "1";
209 static char *cross_compile
= "0";
212 /* The number of errors that have occurred; the link phase will not be
213 run if this is non-zero. */
214 static int error_count
= 0;
216 /* This is the obstack which we use to allocate many strings. */
218 static struct obstack obstack
;
220 /* This is the obstack to build an environment variable to pass to
221 collect2 that describes all of the relevant switches of what to
222 pass the compiler in building the list of pointers to constructors
225 static struct obstack collect_obstack
;
227 extern char *version_string
;
229 /* Forward declaration for prototypes. */
232 static void init_spec
PROTO((void));
233 static void read_specs
PROTO((char *, int));
234 static void set_spec
PROTO((char *, char *));
235 static struct compiler
*lookup_compiler
PROTO((char *, int, char *));
236 static char *build_search_list
PROTO((struct path_prefix
*, char *, int));
237 static void putenv_from_prefixes
PROTO((struct path_prefix
*, char *));
238 static char *find_a_file
PROTO((struct path_prefix
*, char *, int));
239 static void add_prefix
PROTO((struct path_prefix
*, char *, char *,
241 static char *skip_whitespace
PROTO((char *));
242 static void record_temp_file
PROTO((char *, int, int));
243 static void delete_if_ordinary
PROTO((char *));
244 static void delete_temp_files
PROTO((void));
245 static void delete_failure_queue
PROTO((void));
246 static void clear_failure_queue
PROTO((void));
247 static int check_live_switch
PROTO((int, int));
248 static char *handle_braces
PROTO((char *));
249 static char *save_string
PROTO((char *, int));
250 static char *concat
PVPROTO((char *, ...));
251 static int do_spec
PROTO((char *));
252 static int do_spec_1
PROTO((char *, int, char *));
253 static char *find_file
PROTO((char *));
254 static int is_directory
PROTO((char *, char *, int));
255 static void validate_switches
PROTO((char *));
256 static void validate_all_switches
PROTO((void));
257 static void give_switch
PROTO((int, int, int));
258 static int used_arg
PROTO((char *, int));
259 static int default_arg
PROTO((char *, int));
260 static void set_multilib_dir
PROTO((void));
261 static void print_multilib_info
PROTO((void));
262 static void pfatal_with_name
PROTO((char *));
263 static void perror_with_name
PROTO((char *));
264 static void pfatal_pexecute
PROTO((char *, char *));
266 static void fatal
PVPROTO((char *, ...));
267 static void error
PVPROTO((char *, ...));
269 /* We must not provide any prototype here, even if ANSI C. */
270 static void fatal
PROTO(());
271 static void error
PROTO(());
278 /* Specs are strings containing lines, each of which (if not blank)
279 is made up of a program name, and arguments separated by spaces.
280 The program name must be exact and start from root, since no path
281 is searched and it is unreliable to depend on the current working directory.
282 Redirection of input or output is not supported; the subprograms must
283 accept filenames saying what files to read and write.
285 In addition, the specs can contain %-sequences to substitute variable text
286 or for conditional text. Here is a table of all defined %-sequences.
287 Note that spaces are not generated automatically around the results of
288 expanding these sequences; therefore, you can concatenate them together
289 or with constant text in a single argument.
291 %% substitute one % into the program name or argument.
292 %i substitute the name of the input file being processed.
293 %b substitute the basename of the input file being processed.
294 This is the substring up to (and not including) the last period
295 and not including the directory.
296 %g substitute the temporary-file-name-base. This is a string chosen
297 once per compilation. Different temporary file names are made by
298 concatenation of constant strings on the end, as in `%g.s'.
299 %g also has the same effect of %d.
300 %u like %g, but make the temporary file name unique.
301 %U returns the last file name generated with %u.
302 %d marks the argument containing or following the %d as a
303 temporary file name, so that that file will be deleted if CC exits
304 successfully. Unlike %g, this contributes no text to the argument.
305 %w marks the argument containing or following the %w as the
306 "output file" of this compilation. This puts the argument
307 into the sequence of arguments that %o will substitute later.
309 like %{...} but mark last argument supplied within
310 as a file to be deleted on failure.
311 %o substitutes the names of all the output files, with spaces
312 automatically placed around them. You should write spaces
313 around the %o as well or the results are undefined.
314 %o is for use in the specs for running the linker.
315 Input files whose names have no recognized suffix are not compiled
316 at all, but they are included among the output files, so they will
318 %O substitutes the suffix for object files.
319 %p substitutes the standard macro predefinitions for the
320 current target machine. Use this when running cpp.
321 %P like %p, but puts `__' before and after the name of each macro.
322 (Except macros that already have __.)
324 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
325 %s current argument is the name of a library or startup file of some sort.
326 Search for that file in a standard list of directories
327 and substitute the full name found.
328 %eSTR Print STR as an error message. STR is terminated by a newline.
329 Use this when inconsistent options are detected.
330 %x{OPTION} Accumulate an option for %X.
331 %X Output the accumulated linker options specified by compilations.
332 %Y Output the accumulated assembler options specified by compilations.
333 %Z Output the accumulated preprocessor options specified by compilations.
334 %v1 Substitute the major version number of GCC.
335 (For version 2.5.n, this is 2.)
336 %v2 Substitute the minor version number of GCC.
337 (For version 2.5.n, this is 5.)
338 %a process ASM_SPEC as a spec.
339 This allows config.h to specify part of the spec for running as.
340 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
341 used here. This can be used to run a post-processor after the
342 assembler has done it's job.
343 %D Dump out a -L option for each directory in startfile_prefixes.
344 If multilib_dir is set, extra entries are generated with it affixed.
345 %l process LINK_SPEC as a spec.
346 %L process LIB_SPEC as a spec.
347 %G process LIBGCC_SPEC as a spec.
348 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
349 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
350 %c process SIGNED_CHAR_SPEC as a spec.
351 %C process CPP_SPEC as a spec. A capital C is actually used here.
352 %1 process CC1_SPEC as a spec.
353 %2 process CC1PLUS_SPEC as a spec.
354 %| output "-" if the input for the current command is coming from a pipe.
355 %* substitute the variable part of a matched option. (See below.)
356 Note that each comma in the substituted string is replaced by
358 %{S} substitutes the -S switch, if that switch was given to CC.
359 If that switch was not specified, this substitutes nothing.
360 Here S is a metasyntactic variable.
361 %{S*} substitutes all the switches specified to CC whose names start
362 with -S. This is used for -o, -D, -I, etc; switches that take
363 arguments. CC considers `-o foo' as being one switch whose
364 name starts with `o'. %{o*} would substitute this text,
365 including the space; thus, two arguments would be generated.
366 %{^S*} likewise, but don't put a blank between a switch and any args.
367 %{S*:X} substitutes X if one or more switches whose names start with -S are
368 specified to CC. Note that the tail part of the -S option
369 (i.e. the part matched by the `*') will be substituted for each
370 occurrence of %* within X.
371 %{S:X} substitutes X, but only if the -S switch was given to CC.
372 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
373 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
374 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
375 %{.S:X} substitutes X, but only if processing a file with suffix S.
376 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
377 %(Spec) processes a specification defined in a specs file as *Spec:
378 %[Spec] as above, but put __ around -D arguments
380 The conditional text X in a %{S:X} or %{!S:X} construct may contain
381 other nested % constructs or spaces, or even newlines. They are
382 processed as usual, as described above.
384 The -O, -f, -m, and -W switches are handled specifically in these
385 constructs. If another value of -O or the negated form of a -f, -m, or
386 -W switch is found later in the command line, the earlier switch
387 value is ignored, except with {S*} where S is just one letter; this
388 passes all matching options.
390 The character | is used to indicate that a command should be piped to
391 the following command, but only if -pipe is specified.
393 Note that it is built into CC which switches take arguments and which
394 do not. You might think it would be useful to generalize this to
395 allow each compiler's spec to say which switches take arguments. But
396 this cannot be done in a consistent fashion. CC cannot even decide
397 which input files have been specified without knowing which switches
398 take arguments, and it must know which input files to compile in order
399 to tell which compilers to run.
401 CC also knows implicitly that arguments starting in `-l' are to be
402 treated as compiler output files, and passed to the linker in their
403 proper position among the other output files. */
405 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
407 /* config.h can define ASM_SPEC to provide extra args to the assembler
408 or extra switch-translations. */
413 /* config.h can define ASM_FINAL_SPEC to run a post processor after
414 the assembler has run. */
415 #ifndef ASM_FINAL_SPEC
416 #define ASM_FINAL_SPEC ""
419 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
420 or extra switch-translations. */
425 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
426 or extra switch-translations. */
431 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
432 or extra switch-translations. */
434 #define CC1PLUS_SPEC ""
437 /* config.h can define LINK_SPEC to provide extra args to the linker
438 or extra switch-translations. */
443 /* config.h can define LIB_SPEC to override the default libraries. */
445 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
448 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
451 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
452 /* Have gcc do the search for libgcc.a. */
453 #define LIBGCC_SPEC "libgcc.a%s"
455 #define LIBGCC_SPEC "-lgcc"
459 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
460 #ifndef STARTFILE_SPEC
461 #define STARTFILE_SPEC \
462 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
465 /* config.h can define SWITCHES_NEED_SPACES to control which options
466 require spaces between the option and the argument. */
467 #ifndef SWITCHES_NEED_SPACES
468 #define SWITCHES_NEED_SPACES ""
471 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
473 #define ENDFILE_SPEC ""
476 /* This spec is used for telling cpp whether char is signed or not. */
477 #ifndef SIGNED_CHAR_SPEC
478 /* Use #if rather than ?:
479 because MIPS C compiler rejects like ?: in initializers. */
480 #if DEFAULT_SIGNED_CHAR
481 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
483 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
487 static char *cpp_spec
= CPP_SPEC
;
488 static char *cpp_predefines
= CPP_PREDEFINES
;
489 static char *cc1_spec
= CC1_SPEC
;
490 static char *cc1plus_spec
= CC1PLUS_SPEC
;
491 static char *signed_char_spec
= SIGNED_CHAR_SPEC
;
492 static char *asm_spec
= ASM_SPEC
;
493 static char *asm_final_spec
= ASM_FINAL_SPEC
;
494 static char *link_spec
= LINK_SPEC
;
495 static char *lib_spec
= LIB_SPEC
;
496 static char *libgcc_spec
= LIBGCC_SPEC
;
497 static char *endfile_spec
= ENDFILE_SPEC
;
498 static char *startfile_spec
= STARTFILE_SPEC
;
499 static char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
501 /* Some compilers have limits on line lengths, and the multilib_select
502 and/or multilib_matches strings can be very long, so we build them at
504 static struct obstack multilib_obstack
;
505 static char *multilib_select
;
506 static char *multilib_matches
;
507 static char *multilib_defaults
;
508 #include "multilib.h"
510 /* Check whether a particular argument is a default argument. */
512 #ifndef MULTILIB_DEFAULTS
513 #define MULTILIB_DEFAULTS { "" }
516 static char *multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
519 struct user_specs
*next
;
523 static struct user_specs
*user_specs_head
, *user_specs_tail
;
525 /* This defines which switch letters take arguments. */
527 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
528 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
529 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
530 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
531 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
532 || (CHAR) == 'B' || (CHAR) == 'b')
534 #ifndef SWITCH_TAKES_ARG
535 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
538 /* This defines which multi-letter switches take arguments. */
540 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
541 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
542 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
543 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
544 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
545 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
546 || !strcmp (STR, "isystem") || !strcmp (STR, "specs"))
548 #ifndef WORD_SWITCH_TAKES_ARG
549 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
552 /* Record the mapping from file suffixes for compilation specs. */
556 char *suffix
; /* Use this compiler for input files
557 whose names end in this suffix. */
559 char *spec
[4]; /* To use this compiler, concatenate these
560 specs and pass to do_spec. */
563 /* Pointer to a vector of `struct compiler' that gives the spec for
564 compiling a file, based on its suffix.
565 A file that does not end in any of these suffixes will be passed
566 unchanged to the loader and nothing else will be done to it.
568 An entry containing two 0s is used to terminate the vector.
570 If multiple entries match a file, the last matching one is used. */
572 static struct compiler
*compilers
;
574 /* Number of entries in `compilers', not counting the null terminator. */
576 static int n_compilers
;
578 /* The default list of file name suffixes and their compilation specs. */
580 static struct compiler default_compilers
[] =
582 /* Add lists of suffixes of known languages here. If those languages
583 were not present when we built the driver, we will hit these copies
584 and be given a more meaningful error than "file not used since
585 linking is not done". */
586 {".cc", "#C++"}, {".cxx", "#C++"}, {".cpp", "#C++"}, {".c++", "#C++"},
587 {".C", "#C++"}, {".ads", "#Ada"}, {".adb", "#Ada"}, {".ada", "#Ada"},
588 {".f", "#Fortran"}, {".for", "#Fortran"}, {".F", "#Fortran"},
589 {".fpp", "#Fortran"},
590 {".p", "#Pascal"}, {".pas", "#Pascal"},
591 /* Next come the entries for C. */
594 "cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
595 %{C:%{!E:%eGNU C does not support -C without using -E}}\
596 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
597 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
598 %{ansi:-trigraphs -D__STRICT_ANSI__}\
599 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
600 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
601 %{traditional-cpp:-traditional}\
602 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
603 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
604 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
605 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
606 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
607 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
609 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
610 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
612 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
613 %{!pipe:%g.s} %A\n }}}}"},
615 "%{E:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
616 %{C:%{!E:%eGNU C does not support -C without using -E}}\
617 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
618 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
619 %{ansi:-trigraphs -D__STRICT_ANSI__}\
620 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
621 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
622 %{traditional-cpp:-traditional}\
623 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
625 %{!E:%e-E required when input is from standard input}"},
626 {".m", "@objective-c"},
628 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
629 %{C:%{!E:%eGNU C does not support -C without using -E}}\
630 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
631 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
632 %{ansi:-trigraphs -D__STRICT_ANSI__}\
633 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
634 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
635 %{traditional-cpp:-traditional}\
636 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
637 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
638 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
639 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a*}\
640 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
641 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
642 -lang-objc %{gen-decls} \
644 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
645 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
647 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
648 %{!pipe:%g.s} %A\n }}}}"},
651 "%{!E:%eCompilation of header file requested} \
652 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
653 %{C:%{!E:%eGNU C does not support -C without using -E}}\
654 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
655 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
656 %{ansi:-trigraphs -D__STRICT_ANSI__}\
657 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
658 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
659 %{traditional-cpp:-traditional}\
660 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
662 {".i", "@cpp-output"},
664 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
665 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
666 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
668 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
669 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
671 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
672 %{!pipe:%g.s} %A\n }}}}"},
673 {".s", "@assembler"},
675 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
676 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
678 {".S", "@assembler-with-cpp"},
679 {"@assembler-with-cpp",
680 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
681 %{C:%{!E:%eGNU C does not support -C without using -E}}\
682 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
683 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
684 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
685 %{traditional-cpp:-traditional}\
686 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
687 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
688 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
689 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
690 %{!pipe:%g.s} %A\n }}}}"},
692 /* Mark end of table */
696 /* Number of elements in default_compilers, not counting the terminator. */
698 static int n_default_compilers
699 = (sizeof default_compilers
/ sizeof (struct compiler
)) - 1;
701 /* Here is the spec for running the linker, after compiling all files. */
703 /* -u* was put back because both BSD and SysV seem to support it. */
704 /* %{static:} simply prevents an error message if the target machine
705 doesn't handle -static. */
706 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
707 scripts which exist in user specified directories, or in standard
709 #ifdef LINK_LIBGCC_SPECIAL
710 /* Don't generate -L options. */
711 static char *link_command_spec
= "\
713 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
714 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
715 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
717 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
718 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
723 static char *link_command_spec
= "\
725 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
726 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
727 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
728 %{static:} %{L*} %D %o\
729 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
730 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
735 /* A vector of options to give to the linker.
736 These options are accumulated by %x,
737 and substituted into the linker command with %X. */
738 static int n_linker_options
;
739 static char **linker_options
;
741 /* A vector of options to give to the assembler.
742 These options are accumulated by -Wa,
743 and substituted into the assembler command with %Y. */
744 static int n_assembler_options
;
745 static char **assembler_options
;
747 /* A vector of options to give to the preprocessor.
748 These options are accumulated by -Wp,
749 and substituted into the preprocessor command with %Z. */
750 static int n_preprocessor_options
;
751 static char **preprocessor_options
;
753 /* Define how to map long options into short ones. */
755 /* This structure describes one mapping. */
758 /* The long option's name. */
760 /* The equivalent short option. */
762 /* Argument info. A string of flag chars; NULL equals no options.
763 a => argument required.
764 o => argument optional.
765 j => join argument to equivalent, making one word.
766 * => require other text after NAME as an argument. */
770 /* This is the table of mappings. Mappings are tried sequentially
771 for each option encountered; the first one that matches, wins. */
773 struct option_map option_map
[] =
775 {"--all-warnings", "-Wall", 0},
776 {"--ansi", "-ansi", 0},
777 {"--assemble", "-S", 0},
778 {"--assert", "-A", "a"},
779 {"--comments", "-C", 0},
780 {"--compile", "-c", 0},
781 {"--debug", "-g", "oj"},
782 {"--define-macro", "-D", "aj"},
783 {"--dependencies", "-M", 0},
784 {"--dump", "-d", "a"},
785 {"--dumpbase", "-dumpbase", "a"},
786 {"--entry", "-e", 0},
787 {"--extra-warnings", "-W", 0},
788 {"--for-assembler", "-Wa", "a"},
789 {"--for-linker", "-Xlinker", "a"},
790 {"--force-link", "-u", "a"},
791 {"--imacros", "-imacros", "a"},
792 {"--include", "-include", "a"},
793 {"--include-barrier", "-I-", 0},
794 {"--include-directory", "-I", "aj"},
795 {"--include-directory-after", "-idirafter", "a"},
796 {"--include-prefix", "-iprefix", "a"},
797 {"--include-with-prefix", "-iwithprefix", "a"},
798 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
799 {"--include-with-prefix-after", "-iwithprefix", "a"},
800 {"--language", "-x", "a"},
801 {"--library-directory", "-L", "a"},
802 {"--machine", "-m", "aj"},
803 {"--machine-", "-m", "*j"},
804 {"--no-line-commands", "-P", 0},
805 {"--no-precompiled-includes", "-noprecomp", 0},
806 {"--no-standard-includes", "-nostdinc", 0},
807 {"--no-standard-libraries", "-nostdlib", 0},
808 {"--no-warnings", "-w", 0},
809 {"--optimize", "-O", "oj"},
810 {"--output", "-o", "a"},
811 {"--pedantic", "-pedantic", 0},
812 {"--pedantic-errors", "-pedantic-errors", 0},
813 {"--pipe", "-pipe", 0},
814 {"--prefix", "-B", "a"},
815 {"--preprocess", "-E", 0},
816 {"--print-search-dirs", "-print-search-dirs", 0},
817 {"--print-file-name", "-print-file-name=", "aj"},
818 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
819 {"--print-missing-file-dependencies", "-MG", 0},
820 {"--print-multi-lib", "-print-multi-lib", 0},
821 {"--print-multi-directory", "-print-multi-directory", 0},
822 {"--print-prog-name", "-print-prog-name=", "aj"},
823 {"--profile", "-p", 0},
824 {"--profile-blocks", "-a", 0},
825 {"--quiet", "-q", 0},
826 {"--save-temps", "-save-temps", 0},
827 {"--shared", "-shared", 0},
828 {"--silent", "-q", 0},
829 {"--specs", "-specs=", "aj"},
830 {"--static", "-static", 0},
831 {"--symbolic", "-symbolic", 0},
832 {"--target", "-b", "a"},
833 {"--trace-includes", "-H", 0},
834 {"--traditional", "-traditional", 0},
835 {"--traditional-cpp", "-traditional-cpp", 0},
836 {"--trigraphs", "-trigraphs", 0},
837 {"--undefine-macro", "-U", "aj"},
838 {"--use-version", "-V", "a"},
839 {"--user-dependencies", "-MM", 0},
840 {"--verbose", "-v", 0},
841 {"--version", "-dumpversion", 0},
842 {"--warn-", "-W", "*j"},
843 {"--write-dependencies", "-MD", 0},
844 {"--write-user-dependencies", "-MMD", 0},
848 /* Translate the options described by *ARGCP and *ARGVP.
849 Make a new vector and store it back in *ARGVP,
850 and store its length in *ARGVC. */
853 translate_options (argcp
, argvp
)
859 char **argv
= *argvp
;
860 char **newv
= (char **) xmalloc ((argc
+ 2) * 2 * sizeof (char *));
864 newv
[newindex
++] = argv
[i
++];
868 /* Translate -- options. */
869 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
871 /* Find a mapping that applies to this option. */
872 for (j
= 0; j
< sizeof (option_map
) / sizeof (option_map
[0]); j
++)
874 int optlen
= strlen (option_map
[j
].name
);
875 int arglen
= strlen (argv
[i
]);
876 int complen
= arglen
> optlen
? optlen
: arglen
;
877 char *arginfo
= option_map
[j
].arg_info
;
882 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
889 k
< sizeof (option_map
) / sizeof (option_map
[0]);
891 if (strlen (option_map
[k
].name
) >= arglen
892 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
894 error ("Ambiguous abbreviation %s", argv
[i
]);
898 if (k
!= sizeof (option_map
) / sizeof (option_map
[0]))
904 /* If the option has an argument, accept that. */
905 if (argv
[i
][optlen
] == '=')
906 arg
= argv
[i
] + optlen
+ 1;
908 /* If this mapping requires extra text at end of name,
909 accept that as "argument". */
910 else if (index (arginfo
, '*') != 0)
911 arg
= argv
[i
] + optlen
;
913 /* Otherwise, extra text at end means mismatch.
914 Try other mappings. */
919 else if (index (arginfo
, '*') != 0)
921 error ("Incomplete `%s' option", option_map
[j
].name
);
925 /* Handle arguments. */
926 if (index (arginfo
, 'a') != 0)
932 error ("Missing argument to `%s' option",
940 else if (index (arginfo
, '*') != 0)
942 else if (index (arginfo
, 'o') == 0)
945 error ("Extraneous argument to `%s' option",
950 /* Store the translation as one argv elt or as two. */
951 if (arg
!= 0 && index (arginfo
, 'j') != 0)
952 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
956 newv
[newindex
++] = option_map
[j
].equivalent
;
957 newv
[newindex
++] = arg
;
960 newv
[newindex
++] = option_map
[j
].equivalent
;
968 /* Handle old-fashioned options--just copy them through,
969 with their arguments. */
970 else if (argv
[i
][0] == '-')
972 char *p
= argv
[i
] + 1;
976 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
977 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
978 else if (WORD_SWITCH_TAKES_ARG (p
))
979 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
980 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
983 else if (! strcmp (p
, "Xlinker"))
986 /* Watch out for an option at the end of the command line that
987 is missing arguments, and avoid skipping past the end of the
989 if (nskip
+ i
> argc
)
994 newv
[newindex
++] = argv
[i
++];
999 /* Ordinary operands, or +e options. */
1000 newv
[newindex
++] = argv
[i
++];
1013 #ifdef HAVE_STRERROR
1019 static char buffer
[30];
1021 return "cannot access";
1023 if (e
> 0 && e
< sys_nerr
)
1024 return sys_errlist
[e
];
1026 sprintf (buffer
, "Unknown error %d", e
);
1037 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1038 be considered whitespace. */
1039 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1041 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1045 while (*p
!= '\n') p
++;
1055 /* Structure to keep track of the specs that have been defined so far.
1056 These are accessed using %(specname) or %[specname] in a compiler
1061 /* The following 2 fields must be first */
1062 /* to allow EXTRA_SPECS to be initialized */
1063 char *name
; /* name of the spec. */
1064 char *ptr
; /* available ptr if no static pointer */
1066 /* The following fields are not initialized */
1067 /* by EXTRA_SPECS */
1068 char **ptr_spec
; /* pointer to the spec itself. */
1069 struct spec_list
*next
; /* Next spec in linked list. */
1070 int name_len
; /* length of the name */
1071 int alloc_p
; /* whether string was allocated */
1074 #define INIT_STATIC_SPEC(NAME,PTR) \
1075 { NAME, NULL_PTR, PTR, (struct spec_list *)0, sizeof (NAME)-1, 0 }
1077 /* List of statically defined specs */
1078 static struct spec_list static_specs
[] = {
1079 INIT_STATIC_SPEC ("asm", &asm_spec
),
1080 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1081 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1082 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1083 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1084 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1085 INIT_STATIC_SPEC ("link", &link_spec
),
1086 INIT_STATIC_SPEC ("lib", &lib_spec
),
1087 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1088 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1089 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1090 INIT_STATIC_SPEC ("signed_char", &signed_char_spec
),
1091 INIT_STATIC_SPEC ("predefines", &cpp_predefines
),
1092 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1093 INIT_STATIC_SPEC ("version", &compiler_version
),
1094 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1095 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1096 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1097 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1100 #ifdef EXTRA_SPECS /* additional specs needed */
1101 static struct spec_list extra_specs
[] = { EXTRA_SPECS
};
1104 /* List of dynamically allocates specs that have been defined so far. */
1106 static struct spec_list
*specs
= (struct spec_list
*)0;
1109 /* Initialize the specs lookup routines. */
1114 struct spec_list
*next
= (struct spec_list
*)0;
1115 struct spec_list
*sl
= (struct spec_list
*)0;
1119 return; /* already initialized */
1122 fprintf (stderr
, "Using builtin specs.\n");
1125 for (i
= (sizeof (extra_specs
) / sizeof (extra_specs
[0])) - 1; i
>= 0; i
--)
1127 sl
= &extra_specs
[i
];
1129 sl
->name_len
= strlen (sl
->name
);
1130 sl
->ptr_spec
= &sl
->ptr
;
1135 for (i
= (sizeof (static_specs
) / sizeof (static_specs
[0])) - 1; i
>= 0; i
--)
1137 sl
= &static_specs
[i
];
1146 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1147 removed; If the spec starts with a + then SPEC is added to the end of the
1151 set_spec (name
, spec
)
1155 struct spec_list
*sl
;
1157 int name_len
= strlen (name
);
1160 /* If this is the first call, initialize the statically allocated specs */
1163 struct spec_list
*next
= (struct spec_list
*)0;
1164 for (i
= (sizeof (static_specs
) / sizeof (static_specs
[0])) - 1;
1167 sl
= &static_specs
[i
];
1174 /* See if the spec already exists */
1175 for (sl
= specs
; sl
; sl
= sl
->next
)
1176 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1181 /* Not found - make it */
1182 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1183 sl
->name
= save_string (name
, strlen (name
));
1184 sl
->name_len
= name_len
;
1185 sl
->ptr_spec
= &sl
->ptr
;
1187 *(sl
->ptr_spec
) = "";
1192 old_spec
= *(sl
->ptr_spec
);
1193 *(sl
->ptr_spec
) = ((spec
[0] == '+' && isspace (spec
[1]))
1194 ? concat (old_spec
, spec
+ 1, NULL_PTR
)
1195 : save_string (spec
, strlen (spec
)));
1199 fprintf (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1202 /* Free the old spec */
1203 if (old_spec
&& sl
->alloc_p
)
1209 /* Accumulate a command (program name and args), and run it. */
1211 /* Vector of pointers to arguments in the current line of specifications. */
1213 static char **argbuf
;
1215 /* Number of elements allocated in argbuf. */
1217 static int argbuf_length
;
1219 /* Number of elements in argbuf currently in use (containing args). */
1221 static int argbuf_index
;
1223 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1224 temp file. Used only if MKTEMP_EACH_FILE. */
1226 static struct temp_name
{
1227 char *suffix
; /* suffix associated with the code. */
1228 int length
; /* strlen (suffix). */
1229 int unique
; /* Indicates whether %g or %u/%U was used. */
1230 char *filename
; /* associated filename. */
1231 int filename_length
; /* strlen (filename). */
1232 struct temp_name
*next
;
1235 /* Number of commands executed so far. */
1237 static int execution_count
;
1239 /* Number of commands that exited with a signal. */
1241 static int signal_count
;
1243 /* Name with which this program was invoked. */
1245 static char *programname
;
1247 /* Structures to keep track of prefixes to try when looking for files. */
1251 char *prefix
; /* String to prepend to the path. */
1252 struct prefix_list
*next
; /* Next in linked list. */
1253 int require_machine_suffix
; /* Don't use without machine_suffix. */
1254 /* 2 means try both machine_suffix and just_machine_suffix. */
1255 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1260 struct prefix_list
*plist
; /* List of prefixes to try */
1261 int max_len
; /* Max length of a prefix in PLIST */
1262 char *name
; /* Name of this list (used in config stuff) */
1265 /* List of prefixes to try when looking for executables. */
1267 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1269 /* List of prefixes to try when looking for startup (crt0) files. */
1271 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1273 /* List of prefixes to try when looking for include files. */
1275 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1277 /* Suffix to attach to directories searched for commands.
1278 This looks like `MACHINE/VERSION/'. */
1280 static char *machine_suffix
= 0;
1282 /* Suffix to attach to directories searched for commands.
1283 This is just `MACHINE/'. */
1285 static char *just_machine_suffix
= 0;
1287 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1289 static char *gcc_exec_prefix
;
1291 /* Default prefixes to attach to command names. */
1293 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1294 #undef MD_EXEC_PREFIX
1295 #undef MD_STARTFILE_PREFIX
1296 #undef MD_STARTFILE_PREFIX_1
1299 #ifndef STANDARD_EXEC_PREFIX
1300 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1301 #endif /* !defined STANDARD_EXEC_PREFIX */
1303 static char *standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1304 static char *standard_exec_prefix_1
= "/usr/lib/gcc/";
1305 #ifdef MD_EXEC_PREFIX
1306 static char *md_exec_prefix
= MD_EXEC_PREFIX
;
1309 #ifndef STANDARD_STARTFILE_PREFIX
1310 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1311 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1313 #ifdef MD_STARTFILE_PREFIX
1314 static char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1316 #ifdef MD_STARTFILE_PREFIX_1
1317 static char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1319 static char *standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1320 static char *standard_startfile_prefix_1
= "/lib/";
1321 static char *standard_startfile_prefix_2
= "/usr/lib/";
1323 #ifndef TOOLDIR_BASE_PREFIX
1324 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1326 static char *tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1327 static char *tooldir_prefix
;
1329 /* Subdirectory to use for locating libraries. Set by
1330 set_multilib_dir based on the compilation options. */
1332 static char *multilib_dir
;
1334 /* Clear out the vector of arguments (after a command is executed). */
1342 /* Add one argument to the vector at the end.
1343 This is done when a space is seen or at the end of the line.
1344 If DELETE_ALWAYS is nonzero, the arg is a filename
1345 and the file should be deleted eventually.
1346 If DELETE_FAILURE is nonzero, the arg is a filename
1347 and the file should be deleted if this compilation fails. */
1350 store_arg (arg
, delete_always
, delete_failure
)
1352 int delete_always
, delete_failure
;
1354 if (argbuf_index
+ 1 == argbuf_length
)
1356 = (char **) xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (char *));
1358 argbuf
[argbuf_index
++] = arg
;
1359 argbuf
[argbuf_index
] = 0;
1361 if (delete_always
|| delete_failure
)
1362 record_temp_file (arg
, delete_always
, delete_failure
);
1365 /* Read compilation specs from a file named FILENAME,
1366 replacing the default ones.
1368 A suffix which starts with `*' is a definition for
1369 one of the machine-specific sub-specs. The "suffix" should be
1370 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1371 The corresponding spec is stored in asm_spec, etc.,
1372 rather than in the `compilers' vector.
1374 Anything invalid in the file is a fatal error. */
1377 read_specs (filename
, main_p
)
1383 struct stat statbuf
;
1388 fprintf (stderr
, "Reading specs from %s\n", filename
);
1390 /* Open and stat the file. */
1391 desc
= open (filename
, O_RDONLY
, 0);
1393 pfatal_with_name (filename
);
1394 if (stat (filename
, &statbuf
) < 0)
1395 pfatal_with_name (filename
);
1397 /* Read contents of file into BUFFER. */
1398 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1399 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1401 pfatal_with_name (filename
);
1402 buffer
[readlen
] = 0;
1405 /* Scan BUFFER for specs, putting them in the vector. */
1411 char *in
, *out
, *p1
, *p2
, *p3
;
1413 /* Advance P in BUFFER to the next nonblank nocomment line. */
1414 p
= skip_whitespace (p
);
1418 /* Is this a special command that starts with '%'? */
1419 /* Don't allow this for the main specs file, since it would
1420 encourage people to overwrite it. */
1421 if (*p
== '%' && !main_p
)
1424 while (*p
&& *p
!= '\n')
1427 p
++; /* Skip '\n' */
1429 if (!strncmp (p1
, "%include", sizeof ("%include")-1)
1430 && (p1
[sizeof "%include" - 1] == ' '
1431 || p1
[sizeof "%include" - 1] == '\t'))
1435 p1
+= sizeof ("%include");
1436 while (*p1
== ' ' || *p1
== '\t')
1439 if (*p1
++ != '<' || p
[-2] != '>')
1440 fatal ("specs %%include syntax malformed after %d characters",
1444 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1445 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1448 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1449 && (p1
[sizeof "%include_noerr" - 1] == ' '
1450 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1454 p1
+= sizeof "%include_noerr";
1455 while (*p1
== ' ' || *p1
== '\t') p1
++;
1457 if (*p1
++ != '<' || p
[-2] != '>')
1458 fatal ("specs %%include syntax malformed after %d characters",
1462 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1464 read_specs (new_filename
, FALSE
);
1465 else if (verbose_flag
)
1466 fprintf (stderr
, "Could not find specs file %s\n", p1
);
1469 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1470 && (p1
[sizeof "%rename" - 1] == ' '
1471 || p1
[sizeof "%rename" - 1] == '\t'))
1474 struct spec_list
*sl
;
1476 /* Get original name */
1477 p1
+= sizeof "%rename";
1478 while (*p1
== ' ' || *p1
== '\t')
1481 if (! isalpha (*p1
))
1482 fatal ("specs %%rename syntax malformed after %d characters",
1486 while (*p2
&& !isspace (*p2
))
1489 if (*p2
!= ' ' && *p2
!= '\t')
1490 fatal ("specs %%rename syntax malformed after %d characters",
1495 while (*p2
== ' ' || *p2
== '\t')
1498 if (! isalpha (*p2
))
1499 fatal ("specs %%rename syntax malformed after %d characters",
1502 /* Get new spec name */
1504 while (*p3
&& !isspace (*p3
))
1508 fatal ("specs %%rename syntax malformed after %d characters",
1512 for (sl
= specs
; sl
; sl
= sl
->next
)
1513 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1517 fatal ("specs %s spec was not found to be renamed", p1
);
1519 if (strcmp (p1
, p2
) == 0)
1524 fprintf (stderr
, "rename spec %s to %s\n", p1
, p2
);
1526 fprintf (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
1530 set_spec (p2
, *(sl
->ptr_spec
));
1532 free (*(sl
->ptr_spec
));
1534 *(sl
->ptr_spec
) = "";
1539 fatal ("specs unknown %% command after %d characters",
1543 /* Find the colon that should end the suffix. */
1545 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1548 /* The colon shouldn't be missing. */
1550 fatal ("specs file malformed after %d characters", p1
- buffer
);
1552 /* Skip back over trailing whitespace. */
1554 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1557 /* Copy the suffix to a string. */
1558 suffix
= save_string (p
, p2
- p
);
1559 /* Find the next line. */
1560 p
= skip_whitespace (p1
+ 1);
1562 fatal ("specs file malformed after %d characters", p
- buffer
);
1565 /* Find next blank line. */
1566 while (*p1
&& !(*p1
== '\n' && p1
[1] == '\n'))
1569 /* Specs end at the blank line and do not include the newline. */
1570 spec
= save_string (p
, p1
- p
);
1573 /* Delete backslash-newline sequences from the spec. */
1578 if (in
[0] == '\\' && in
[1] == '\n')
1580 else if (in
[0] == '#')
1581 while (*in
&& *in
!= '\n')
1589 if (suffix
[0] == '*')
1591 if (! strcmp (suffix
, "*link_command"))
1592 link_command_spec
= spec
;
1594 set_spec (suffix
+ 1, spec
);
1598 /* Add this pair to the vector. */
1600 = ((struct compiler
*)
1601 xrealloc (compilers
,
1602 (n_compilers
+ 2) * sizeof (struct compiler
)));
1604 compilers
[n_compilers
].suffix
= suffix
;
1605 bzero ((char *) compilers
[n_compilers
].spec
,
1606 sizeof compilers
[n_compilers
].spec
);
1607 compilers
[n_compilers
].spec
[0] = spec
;
1609 bzero ((char *) &compilers
[n_compilers
],
1610 sizeof compilers
[n_compilers
]);
1614 link_command_spec
= spec
;
1617 if (link_command_spec
== 0)
1618 fatal ("spec file has no spec for linking");
1621 /* Record the names of temporary files we tell compilers to write,
1622 and delete them at the end of the run. */
1624 /* This is the common prefix we use to make temp file names.
1625 It is chosen once for each run of this program.
1626 It is substituted into a spec by %g.
1627 Thus, all temp file names contain this prefix.
1628 In practice, all temp file names start with this prefix.
1630 This prefix comes from the envvar TMPDIR if it is defined;
1631 otherwise, from the P_tmpdir macro if that is defined;
1632 otherwise, in /usr/tmp or /tmp;
1633 or finally the current directory if all else fails. */
1635 static char *temp_filename
;
1637 /* Length of the prefix. */
1639 static int temp_filename_length
;
1641 /* Define the list of temporary files to delete. */
1646 struct temp_file
*next
;
1649 /* Queue of files to delete on success or failure of compilation. */
1650 static struct temp_file
*always_delete_queue
;
1651 /* Queue of files to delete on failure of compilation. */
1652 static struct temp_file
*failure_delete_queue
;
1654 /* Record FILENAME as a file to be deleted automatically.
1655 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1656 otherwise delete it in any case.
1657 FAIL_DELETE nonzero means delete it if a compilation step fails;
1658 otherwise delete it in any case. */
1661 record_temp_file (filename
, always_delete
, fail_delete
)
1666 register char *name
;
1667 name
= xmalloc (strlen (filename
) + 1);
1668 strcpy (name
, filename
);
1672 register struct temp_file
*temp
;
1673 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1674 if (! strcmp (name
, temp
->name
))
1677 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1678 temp
->next
= always_delete_queue
;
1680 always_delete_queue
= temp
;
1687 register struct temp_file
*temp
;
1688 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1689 if (! strcmp (name
, temp
->name
))
1692 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1693 temp
->next
= failure_delete_queue
;
1695 failure_delete_queue
= temp
;
1701 /* Delete all the temporary files whose names we previously recorded. */
1704 delete_if_ordinary (name
)
1711 printf ("Delete %s? (y or n) ", name
);
1715 while ((c
= getchar ()) != '\n' && c
!= EOF
)
1718 if (i
== 'y' || i
== 'Y')
1720 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
1721 if (unlink (name
) < 0)
1723 perror_with_name (name
);
1727 delete_temp_files ()
1729 register struct temp_file
*temp
;
1731 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1732 delete_if_ordinary (temp
->name
);
1733 always_delete_queue
= 0;
1736 /* Delete all the files to be deleted on error. */
1739 delete_failure_queue ()
1741 register struct temp_file
*temp
;
1743 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1744 delete_if_ordinary (temp
->name
);
1748 clear_failure_queue ()
1750 failure_delete_queue
= 0;
1753 /* Routine to add variables to the environment. We do this to pass
1754 the pathname of the gcc driver, and the directories search to the
1755 collect2 program, which is being run as ld. This way, we can be
1756 sure of executing the right compiler when collect2 wants to build
1757 constructors and destructors. Since the environment variables we
1758 use come from an obstack, we don't have to worry about allocating
1767 #ifndef VMS /* nor about VMS */
1769 extern char **environ
;
1770 char **old_environ
= environ
;
1774 int str_len
= strlen (str
);
1778 while ((ch
= *p
++) != '\0' && ch
!= '=')
1784 /* Search for replacing an existing environment variable, and
1785 count the number of total environment variables. */
1786 for (envp
= old_environ
; *envp
; envp
++)
1789 if (!strncmp (str
, *envp
, name_len
))
1796 /* Add a new environment variable */
1797 environ
= (char **) xmalloc (sizeof (char *) * (num_envs
+2));
1799 bcopy ((char *) old_environ
, (char *) (environ
+ 1),
1800 sizeof (char *) * (num_envs
+1));
1805 #endif /* HAVE_PUTENV */
1808 /* Build a list of search directories from PATHS.
1809 PREFIX is a string to prepend to the list.
1810 If CHECK_DIR_P is non-zero we ensure the directory exists.
1811 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1812 It is also used by the --print-search-dirs flag. */
1815 build_search_list (paths
, prefix
, check_dir_p
)
1816 struct path_prefix
*paths
;
1820 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
1822 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
1823 int first_time
= TRUE
;
1824 struct prefix_list
*pprefix
;
1826 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
1828 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
1830 int len
= strlen (pprefix
->prefix
);
1834 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
1837 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1840 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1841 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
1844 if (just_machine_suffix
1845 && pprefix
->require_machine_suffix
== 2
1847 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
1850 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1853 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1854 obstack_grow (&collect_obstack
, just_machine_suffix
,
1858 if (! pprefix
->require_machine_suffix
)
1861 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1864 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1868 obstack_1grow (&collect_obstack
, '\0');
1869 return obstack_finish (&collect_obstack
);
1872 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1876 putenv_from_prefixes (paths
, env_var
)
1877 struct path_prefix
*paths
;
1880 putenv (build_search_list (paths
, env_var
, 1));
1883 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1884 access to check permissions.
1885 Return 0 if not found, otherwise return its name, allocated with malloc. */
1888 find_a_file (pprefix
, name
, mode
)
1889 struct path_prefix
*pprefix
;
1894 char *file_suffix
= ((mode
& X_OK
) != 0 ? EXECUTABLE_SUFFIX
: "");
1895 struct prefix_list
*pl
;
1896 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
1899 len
+= strlen (machine_suffix
);
1901 temp
= xmalloc (len
);
1903 /* Determine the filename to execute (special case for absolute paths). */
1905 if (*name
== '/' || *name
== DIR_SEPARATOR
1906 /* Check for disk name on MS-DOS-based systems. */
1907 || (DIR_SEPARATOR
== '\\' && name
[1] == ':'
1908 && (name
[2] == DIR_SEPARATOR
|| name
[2] == '/')))
1910 if (access (name
, mode
))
1912 strcpy (temp
, name
);
1917 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
1921 /* Some systems have a suffix for executable files.
1922 So try appending that first. */
1923 if (file_suffix
[0] != 0)
1925 strcpy (temp
, pl
->prefix
);
1926 strcat (temp
, machine_suffix
);
1927 strcat (temp
, name
);
1928 strcat (temp
, file_suffix
);
1929 if (access (temp
, mode
) == 0)
1931 if (pl
->used_flag_ptr
!= 0)
1932 *pl
->used_flag_ptr
= 1;
1937 /* Now try just the name. */
1938 strcpy (temp
, pl
->prefix
);
1939 strcat (temp
, machine_suffix
);
1940 strcat (temp
, name
);
1941 if (access (temp
, mode
) == 0)
1943 if (pl
->used_flag_ptr
!= 0)
1944 *pl
->used_flag_ptr
= 1;
1949 /* Certain prefixes are tried with just the machine type,
1950 not the version. This is used for finding as, ld, etc. */
1951 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
1953 /* Some systems have a suffix for executable files.
1954 So try appending that first. */
1955 if (file_suffix
[0] != 0)
1957 strcpy (temp
, pl
->prefix
);
1958 strcat (temp
, just_machine_suffix
);
1959 strcat (temp
, name
);
1960 strcat (temp
, file_suffix
);
1961 if (access (temp
, mode
) == 0)
1963 if (pl
->used_flag_ptr
!= 0)
1964 *pl
->used_flag_ptr
= 1;
1969 strcpy (temp
, pl
->prefix
);
1970 strcat (temp
, just_machine_suffix
);
1971 strcat (temp
, name
);
1972 if (access (temp
, mode
) == 0)
1974 if (pl
->used_flag_ptr
!= 0)
1975 *pl
->used_flag_ptr
= 1;
1980 /* Certain prefixes can't be used without the machine suffix
1981 when the machine or version is explicitly specified. */
1982 if (! pl
->require_machine_suffix
)
1984 /* Some systems have a suffix for executable files.
1985 So try appending that first. */
1986 if (file_suffix
[0] != 0)
1988 strcpy (temp
, pl
->prefix
);
1989 strcat (temp
, name
);
1990 strcat (temp
, file_suffix
);
1991 if (access (temp
, mode
) == 0)
1993 if (pl
->used_flag_ptr
!= 0)
1994 *pl
->used_flag_ptr
= 1;
1999 strcpy (temp
, pl
->prefix
);
2000 strcat (temp
, name
);
2001 if (access (temp
, mode
) == 0)
2003 if (pl
->used_flag_ptr
!= 0)
2004 *pl
->used_flag_ptr
= 1;
2014 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
2015 at the start of the list, otherwise it goes at the end.
2017 If WARN is nonzero, we will warn if no file is found
2018 through this prefix. WARN should point to an int
2019 which will be set to 1 if this entry is used.
2021 COMPONENT is the value to be passed to update_path.
2023 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2024 the complete value of machine_suffix.
2025 2 means try both machine_suffix and just_machine_suffix. */
2028 add_prefix (pprefix
, prefix
, component
, first
, require_machine_suffix
, warn
)
2029 struct path_prefix
*pprefix
;
2033 int require_machine_suffix
;
2036 struct prefix_list
*pl
, **prev
;
2039 if (! first
&& pprefix
->plist
)
2041 for (pl
= pprefix
->plist
; pl
->next
; pl
= pl
->next
)
2046 prev
= &pprefix
->plist
;
2048 /* Keep track of the longest prefix */
2050 prefix
= update_path (prefix
, component
);
2051 len
= strlen (prefix
);
2052 if (len
> pprefix
->max_len
)
2053 pprefix
->max_len
= len
;
2055 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
2056 pl
->prefix
= save_string (prefix
, len
);
2057 pl
->require_machine_suffix
= require_machine_suffix
;
2058 pl
->used_flag_ptr
= warn
;
2065 pl
->next
= (struct prefix_list
*) 0;
2069 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
2072 unused_prefix_warnings (pprefix
)
2073 struct path_prefix
*pprefix
;
2075 struct prefix_list
*pl
= pprefix
->plist
;
2079 if (pl
->used_flag_ptr
!= 0 && !*pl
->used_flag_ptr
)
2081 if (pl
->require_machine_suffix
&& machine_suffix
)
2082 error ("file path prefix `%s%s' never used", pl
->prefix
,
2085 error ("file path prefix `%s' never used", pl
->prefix
);
2087 /* Prevent duplicate warnings. */
2088 *pl
->used_flag_ptr
= 1;
2095 /* Get rid of all prefixes built up so far in *PLISTP. */
2098 free_path_prefix (pprefix
)
2099 struct path_prefix
*pprefix
;
2101 struct prefix_list
*pl
= pprefix
->plist
;
2102 struct prefix_list
*temp
;
2108 free (temp
->prefix
);
2109 free ((char *) temp
);
2112 pprefix
->plist
= (struct prefix_list
*) 0;
2115 /* Execute the command specified by the arguments on the current line of spec.
2116 When using pipes, this includes several piped-together commands
2117 with `|' between them.
2119 Return 0 if successful, -1 if failed. */
2125 int n_commands
; /* # of command. */
2129 char *prog
; /* program name. */
2130 char **argv
; /* vector of args. */
2131 int pid
; /* pid of process for this command. */
2134 struct command
*commands
; /* each command buffer with above info. */
2136 /* Count # of piped commands. */
2137 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2138 if (strcmp (argbuf
[i
], "|") == 0)
2141 /* Get storage for each command. */
2143 = (struct command
*) alloca (n_commands
* sizeof (struct command
));
2145 /* Split argbuf into its separate piped processes,
2146 and record info about each one.
2147 Also search for the programs that are to be run. */
2149 commands
[0].prog
= argbuf
[0]; /* first command. */
2150 commands
[0].argv
= &argbuf
[0];
2151 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2153 commands
[0].argv
[0] = string
;
2155 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2156 if (strcmp (argbuf
[i
], "|") == 0)
2157 { /* each command. */
2158 #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__)) || defined (OS2) || defined (VMS)
2159 fatal ("-pipe not supported");
2161 argbuf
[i
] = 0; /* termination of command args. */
2162 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2163 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2164 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2166 commands
[n_commands
].argv
[0] = string
;
2170 argbuf
[argbuf_index
] = 0;
2172 /* If -v, print what we are about to do, and maybe query. */
2176 /* Print each piped command as a separate line. */
2177 for (i
= 0; i
< n_commands
; i
++)
2181 for (j
= commands
[i
].argv
; *j
; j
++)
2182 fprintf (stderr
, " %s", *j
);
2184 /* Print a pipe symbol after all but the last command. */
2185 if (i
+ 1 != n_commands
)
2186 fprintf (stderr
, " |");
2187 fprintf (stderr
, "\n");
2191 fprintf (stderr
, "\nGo ahead? (y or n) ");
2195 while (getchar () != '\n')
2198 if (i
!= 'y' && i
!= 'Y')
2203 /* Run each piped subprocess. */
2205 for (i
= 0; i
< n_commands
; i
++)
2207 char *errmsg_fmt
, *errmsg_arg
;
2208 char *string
= commands
[i
].argv
[0];
2210 commands
[i
].pid
= pexecute (string
, commands
[i
].argv
,
2211 programname
, temp_filename
,
2212 &errmsg_fmt
, &errmsg_arg
,
2213 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2214 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2215 | (string
== commands
[i
].prog
2216 ? PEXECUTE_SEARCH
: 0)
2217 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2219 if (commands
[i
].pid
== -1)
2220 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2222 if (string
!= commands
[i
].prog
)
2228 /* Wait for all the subprocesses to finish.
2229 We don't care what order they finish in;
2230 we know that N_COMMANDS waits will get them all.
2231 Ignore subprocesses that we don't know about,
2232 since they can be spawned by the process that exec'ed us. */
2237 for (i
= 0; i
< n_commands
; )
2243 pid
= pwait (commands
[i
].pid
, &status
, 0);
2247 for (j
= 0; j
< n_commands
; j
++)
2248 if (commands
[j
].pid
== pid
)
2253 if (WIFSIGNALED (status
))
2255 fatal ("Internal compiler error: program %s got fatal signal %d",
2256 commands
[j
].prog
, WTERMSIG (status
));
2260 else if (WIFEXITED (status
)
2261 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2271 /* Find all the switches given to us
2272 and make a vector describing them.
2273 The elements of the vector are strings, one per switch given.
2274 If a switch uses following arguments, then the `part1' field
2275 is the switch itself and the `args' field
2276 is a null-terminated vector containing the following arguments.
2277 The `live_cond' field is 1 if the switch is true in a conditional spec,
2278 -1 if false (overridden by a later switch), and is initialized to zero.
2279 The `valid' field is nonzero if any spec has looked at this switch;
2280 if it remains zero at the end of the run, it must be meaningless. */
2290 static struct switchstr
*switches
;
2292 static int n_switches
;
2300 /* Also a vector of input files specified. */
2302 static struct infile
*infiles
;
2304 static int n_infiles
;
2306 /* And a vector of corresponding output files is made up later. */
2308 static char **outfiles
;
2310 /* Used to track if none of the -B paths are used. */
2313 /* Used to track if standard path isn't used and -b or -V is specified. */
2314 static int warn_std
;
2316 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2317 static int *warn_std_ptr
= 0;
2320 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2322 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2323 is true if we should look for an executable suffix as well. */
2326 convert_filename (name
, do_exe
)
2331 int len
= strlen (name
);
2333 #ifdef HAVE_OBJECT_SUFFIX
2334 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2336 && name
[len
- 2] == '.'
2337 && name
[len
- 1] == 'o')
2339 obstack_grow (&obstack
, name
, len
- 2);
2340 obstack_grow0 (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
2341 name
= obstack_finish (&obstack
);
2345 #ifdef HAVE_EXECUTABLE_SUFFIX
2346 /* If there is no filetype, make it the executable suffix (which includes
2347 the "."). But don't get confused if we have just "-o". */
2348 if (! do_exe
|| EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2351 for (i
= len
- 1; i
>= 0; i
--)
2352 if (name
[i
] == '/' || name
[i
] == DIR_SEPARATOR
)
2355 for (i
++; i
< len
; i
++)
2359 obstack_grow (&obstack
, name
, len
);
2360 obstack_grow0 (&obstack
, EXECUTABLE_SUFFIX
, strlen (EXECUTABLE_SUFFIX
));
2361 name
= obstack_finish (&obstack
);
2368 /* Create the vector `switches' and its contents.
2369 Store its length in `n_switches'. */
2372 process_command (argc
, argv
)
2378 char *spec_lang
= 0;
2379 int last_language_n_infiles
;
2382 int lang_n_infiles
= 0;
2384 gcc_exec_prefix
= getenv ("GCC_EXEC_PREFIX");
2389 /* Figure compiler version from version string. */
2391 compiler_version
= save_string (version_string
, strlen (version_string
));
2392 for (temp
= compiler_version
; *temp
; ++temp
)
2401 /* Set up the default search paths. */
2403 if (gcc_exec_prefix
)
2405 add_prefix (&exec_prefixes
, gcc_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
2406 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
2409 /* COMPILER_PATH and LIBRARY_PATH have values
2410 that are lists of directory names with colons. */
2412 temp
= getenv ("COMPILER_PATH");
2415 char *startp
, *endp
;
2416 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2418 startp
= endp
= temp
;
2421 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2423 strncpy (nstore
, startp
, endp
-startp
);
2425 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2426 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2428 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2429 nstore
[endp
-startp
+1] = 0;
2432 nstore
[endp
-startp
] = 0;
2433 add_prefix (&exec_prefixes
, nstore
, 0, 0, 0, NULL_PTR
);
2434 add_prefix (&include_prefixes
,
2435 concat (nstore
, "include", NULL_PTR
),
2439 endp
= startp
= endp
+ 1;
2446 temp
= getenv ("LIBRARY_PATH");
2447 if (temp
&& *cross_compile
== '0')
2449 char *startp
, *endp
;
2450 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2452 startp
= endp
= temp
;
2455 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2457 strncpy (nstore
, startp
, endp
-startp
);
2459 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2460 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2462 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2463 nstore
[endp
-startp
+1] = 0;
2466 nstore
[endp
-startp
] = 0;
2467 add_prefix (&startfile_prefixes
, nstore
, NULL_PTR
,
2471 endp
= startp
= endp
+ 1;
2478 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2479 temp
= getenv ("LPATH");
2480 if (temp
&& *cross_compile
== '0')
2482 char *startp
, *endp
;
2483 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2485 startp
= endp
= temp
;
2488 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2490 strncpy (nstore
, startp
, endp
-startp
);
2492 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2493 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2495 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2496 nstore
[endp
-startp
+1] = 0;
2499 nstore
[endp
-startp
] = 0;
2500 add_prefix (&startfile_prefixes
, nstore
, NULL_PTR
,
2504 endp
= startp
= endp
+ 1;
2511 /* Convert new-style -- options to old-style. */
2512 translate_options (&argc
, &argv
);
2514 #ifdef LANG_SPECIFIC_DRIVER
2515 /* Do language-specific adjustment/addition of flags. */
2516 lang_specific_driver (fatal
, &argc
, &argv
);
2519 /* Scan argv twice. Here, the first time, just count how many switches
2520 there will be in their vector, and how many input files in theirs.
2521 Here we also parse the switches that cc itself uses (e.g. -v). */
2523 for (i
= 1; i
< argc
; i
++)
2525 if (! strcmp (argv
[i
], "-dumpspecs"))
2527 struct spec_list
*sl
;
2529 for (sl
= specs
; sl
; sl
= sl
->next
)
2530 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
2533 else if (! strcmp (argv
[i
], "-dumpversion"))
2535 printf ("%s\n", version_string
);
2538 else if (! strcmp (argv
[i
], "-dumpmachine"))
2540 printf ("%s\n", spec_machine
);
2543 else if (! strcmp (argv
[i
], "-print-search-dirs"))
2544 print_search_dirs
= 1;
2545 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2546 print_file_name
= "libgcc.a";
2547 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2548 print_file_name
= argv
[i
] + 17;
2549 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2550 print_prog_name
= argv
[i
] + 17;
2551 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2552 print_multi_lib
= 1;
2553 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2554 print_multi_directory
= 1;
2555 else if (! strncmp (argv
[i
], "-Wa,", 4))
2558 /* Pass the rest of this option to the assembler. */
2560 n_assembler_options
++;
2561 if (!assembler_options
)
2563 = (char **) xmalloc (n_assembler_options
* sizeof (char **));
2566 = (char **) xrealloc (assembler_options
,
2567 n_assembler_options
* sizeof (char **));
2569 /* Split the argument at commas. */
2571 for (j
= 4; argv
[i
][j
]; j
++)
2572 if (argv
[i
][j
] == ',')
2574 assembler_options
[n_assembler_options
- 1]
2575 = save_string (argv
[i
] + prev
, j
- prev
);
2576 n_assembler_options
++;
2578 = (char **) xrealloc (assembler_options
,
2579 n_assembler_options
* sizeof (char **));
2582 /* Record the part after the last comma. */
2583 assembler_options
[n_assembler_options
- 1] = argv
[i
] + prev
;
2585 else if (! strncmp (argv
[i
], "-Wp,", 4))
2588 /* Pass the rest of this option to the preprocessor. */
2590 n_preprocessor_options
++;
2591 if (!preprocessor_options
)
2592 preprocessor_options
2593 = (char **) xmalloc (n_preprocessor_options
* sizeof (char **));
2595 preprocessor_options
2596 = (char **) xrealloc (preprocessor_options
,
2597 n_preprocessor_options
* sizeof (char **));
2599 /* Split the argument at commas. */
2601 for (j
= 4; argv
[i
][j
]; j
++)
2602 if (argv
[i
][j
] == ',')
2604 preprocessor_options
[n_preprocessor_options
- 1]
2605 = save_string (argv
[i
] + prev
, j
- prev
);
2606 n_preprocessor_options
++;
2607 preprocessor_options
2608 = (char **) xrealloc (preprocessor_options
,
2609 n_preprocessor_options
* sizeof (char **));
2612 /* Record the part after the last comma. */
2613 preprocessor_options
[n_preprocessor_options
- 1] = argv
[i
] + prev
;
2615 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2616 /* The +e options to the C++ front-end. */
2618 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
2621 /* Split the argument at commas. */
2622 for (j
= 3; argv
[i
][j
]; j
++)
2623 n_infiles
+= (argv
[i
][j
] == ',');
2625 else if (strcmp (argv
[i
], "-Xlinker") == 0)
2628 fatal ("argument to `-Xlinker' is missing");
2633 else if (strncmp (argv
[i
], "-l", 2) == 0)
2635 else if (strcmp (argv
[i
], "-save-temps") == 0)
2637 save_temps_flag
= 1;
2640 else if (strcmp (argv
[i
], "-specs") == 0)
2642 struct user_specs
*user
= (struct user_specs
*)
2643 xmalloc (sizeof (struct user_specs
));
2645 fatal ("argument to `-specs' is missing");
2647 user
->next
= (struct user_specs
*)0;
2648 user
->filename
= argv
[i
];
2649 if (user_specs_tail
)
2650 user_specs_tail
->next
= user
;
2652 user_specs_head
= user
;
2653 user_specs_tail
= user
;
2655 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
2657 struct user_specs
*user
= (struct user_specs
*)
2658 xmalloc (sizeof (struct user_specs
));
2659 if (strlen (argv
[i
]) == 7)
2660 fatal ("argument to `-specs=' is missing");
2662 user
->next
= (struct user_specs
*)0;
2663 user
->filename
= argv
[i
]+7;
2664 if (user_specs_tail
)
2665 user_specs_tail
->next
= user
;
2667 user_specs_head
= user
;
2668 user_specs_tail
= user
;
2670 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
2672 register char *p
= &argv
[i
][1];
2673 register int c
= *p
;
2679 if (p
[1] == 0 && i
+ 1 == argc
)
2680 fatal ("argument to `-b' is missing");
2682 spec_machine
= argv
[++i
];
2684 spec_machine
= p
+ 1;
2686 warn_std_ptr
= &warn_std
;
2691 int *temp
= (int *) xmalloc (sizeof (int));
2693 if (p
[1] == 0 && i
+ 1 == argc
)
2694 fatal ("argument to `-B' is missing");
2699 add_prefix (&exec_prefixes
, value
, NULL_PTR
, 1, 0, &warn_B
);
2700 add_prefix (&startfile_prefixes
, value
, NULL_PTR
,
2702 add_prefix (&include_prefixes
, concat (value
, "include",
2704 NULL_PTR
, 1, 0, NULL_PTR
);
2706 /* As a kludge, if the arg is "[foo/]stageN/", just add
2707 "[foo/]include" to the include prefix. */
2709 int len
= strlen (value
);
2712 && (value
[len
- 8] == '/'
2713 || value
[len
- 8] == DIR_SEPARATOR
)))
2714 && strncmp (value
+ len
- 7, "stage", 5) == 0
2715 && isdigit (value
[len
- 2])
2716 && (value
[len
- 1] == '/'
2717 || value
[len
- 1] == DIR_SEPARATOR
))
2720 add_prefix (&include_prefixes
, "include", NULL_PTR
,
2724 char *string
= xmalloc (len
+ 1);
2725 strncpy (string
, value
, len
-7);
2726 strcpy (string
+len
-7, "include");
2727 add_prefix (&include_prefixes
, string
, NULL_PTR
,
2736 case 'v': /* Print our subcommands and print versions. */
2738 /* If they do anything other than exactly `-v', don't set
2739 verbose_flag; rather, continue on to give the error. */
2747 if (p
[1] == 0 && i
+ 1 == argc
)
2748 fatal ("argument to `-V' is missing");
2750 spec_version
= argv
[++i
];
2752 spec_version
= p
+ 1;
2753 compiler_version
= spec_version
;
2754 warn_std_ptr
= &warn_std
;
2768 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
2769 argv
[i
] = convert_filename (argv
[i
], 1);
2771 argv
[i
+1] = convert_filename (argv
[i
+1], 1);
2779 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2780 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2781 else if (WORD_SWITCH_TAKES_ARG (p
))
2782 i
+= WORD_SWITCH_TAKES_ARG (p
);
2792 if (have_c
&& have_o
&& lang_n_infiles
> 1)
2793 fatal ("cannot specify -o with -c and multiple compilations");
2795 /* Set up the search paths before we go looking for config files. */
2797 /* These come before the md prefixes so that we will find gcc's subcommands
2798 (such as cpp) rather than those of the host system. */
2799 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2800 as well as trying the machine and the version. */
2802 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
2803 0, 2, warn_std_ptr
);
2804 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
2805 0, 2, warn_std_ptr
);
2808 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
2809 0, 1, warn_std_ptr
);
2810 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, "BINUTILS",
2811 0, 1, warn_std_ptr
);
2813 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
2814 dir_separator_str
, NULL_PTR
);
2816 /* If tooldir is relative, base it on exec_prefixes. A relative
2817 tooldir lets us move the installed tree as a unit.
2819 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2820 directories, so that we can search both the user specified directory
2821 and the standard place. */
2823 if (*tooldir_prefix
!= '/' && *tooldir_prefix
!= DIR_SEPARATOR
)
2825 if (gcc_exec_prefix
)
2827 char *gcc_exec_tooldir_prefix
2828 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
2829 spec_version
, dir_separator_str
, tooldir_prefix
, NULL_PTR
);
2831 add_prefix (&exec_prefixes
,
2832 concat (gcc_exec_tooldir_prefix
, "bin",
2833 dir_separator_str
, NULL_PTR
),
2834 NULL_PTR
, 0, 0, NULL_PTR
);
2835 add_prefix (&startfile_prefixes
,
2836 concat (gcc_exec_tooldir_prefix
, "lib",
2837 dir_separator_str
, NULL_PTR
),
2838 NULL_PTR
, 0, 0, NULL_PTR
);
2841 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
2842 dir_separator_str
, spec_version
,
2843 dir_separator_str
, tooldir_prefix
, NULL_PTR
);
2846 add_prefix (&exec_prefixes
,
2847 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL_PTR
),
2848 "BINUTILS", 0, 0, NULL_PTR
);
2849 add_prefix (&startfile_prefixes
,
2850 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL_PTR
),
2851 "BINUTILS", 0, 0, NULL_PTR
);
2853 /* More prefixes are enabled in main, after we read the specs file
2854 and determine whether this is cross-compilation or not. */
2857 /* Then create the space for the vectors and scan again. */
2859 switches
= ((struct switchstr
*)
2860 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
2861 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
2864 last_language_n_infiles
= -1;
2866 /* This, time, copy the text of each switch and store a pointer
2867 to the copy in the vector of switches.
2868 Store all the infiles in their vector. */
2870 for (i
= 1; i
< argc
; i
++)
2872 /* Just skip the switches that were handled by the preceding loop. */
2873 if (! strncmp (argv
[i
], "-Wa,", 4))
2875 else if (! strncmp (argv
[i
], "-Wp,", 4))
2877 else if (! strcmp (argv
[i
], "-print-search-dirs"))
2879 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2881 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2883 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2885 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2887 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2889 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2891 /* Compensate for the +e options to the C++ front-end;
2892 they're there simply for cfront call-compatibility. We do
2893 some magic in default_compilers to pass them down properly.
2894 Note we deliberately start at the `+' here, to avoid passing
2895 -e0 or -e1 down into the linker. */
2896 switches
[n_switches
].part1
= &argv
[i
][0];
2897 switches
[n_switches
].args
= 0;
2898 switches
[n_switches
].live_cond
= 0;
2899 switches
[n_switches
].valid
= 0;
2902 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
2905 /* Split the argument at commas. */
2907 for (j
= 4; argv
[i
][j
]; j
++)
2908 if (argv
[i
][j
] == ',')
2910 infiles
[n_infiles
].language
= 0;
2911 infiles
[n_infiles
++].name
2912 = save_string (argv
[i
] + prev
, j
- prev
);
2915 /* Record the part after the last comma. */
2916 infiles
[n_infiles
].language
= 0;
2917 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
2919 else if (strcmp (argv
[i
], "-Xlinker") == 0)
2921 infiles
[n_infiles
].language
= 0;
2922 infiles
[n_infiles
++].name
= argv
[++i
];
2924 else if (strncmp (argv
[i
], "-l", 2) == 0)
2926 infiles
[n_infiles
].language
= 0;
2927 infiles
[n_infiles
++].name
= argv
[i
];
2929 else if (strcmp (argv
[i
], "-specs") == 0)
2931 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
2933 /* -save-temps overrides -pipe, so that temp files are produced */
2934 else if (save_temps_flag
&& strcmp (argv
[i
], "-pipe") == 0)
2935 error ("Warning: -pipe ignored since -save-temps specified");
2936 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
2938 register char *p
= &argv
[i
][1];
2939 register int c
= *p
;
2943 if (p
[1] == 0 && i
+ 1 == argc
)
2944 fatal ("argument to `-x' is missing");
2946 spec_lang
= argv
[++i
];
2949 if (! strcmp (spec_lang
, "none"))
2950 /* Suppress the warning if -xnone comes after the last input
2951 file, because alternate command interfaces like g++ might
2952 find it useful to place -xnone after each input file. */
2955 last_language_n_infiles
= n_infiles
;
2958 switches
[n_switches
].part1
= p
;
2959 /* Deal with option arguments in separate argv elements. */
2960 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2961 || WORD_SWITCH_TAKES_ARG (p
))
2964 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
2968 /* Count only the option arguments in separate argv elements. */
2969 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2971 if (i
+ n_args
>= argc
)
2972 fatal ("argument to `-%s' is missing", p
);
2973 switches
[n_switches
].args
2974 = (char **) xmalloc ((n_args
+ 1) * sizeof (char *));
2976 switches
[n_switches
].args
[j
++] = argv
[++i
];
2977 /* Null-terminate the vector. */
2978 switches
[n_switches
].args
[j
] = 0;
2980 else if (index (switches_need_spaces
, c
))
2982 /* On some systems, ld cannot handle some options without
2983 a space. So split the option from its argument. */
2984 char *part1
= (char *) xmalloc (2);
2988 switches
[n_switches
].part1
= part1
;
2989 switches
[n_switches
].args
= (char **) xmalloc (2 * sizeof (char *));
2990 switches
[n_switches
].args
[0] = xmalloc (strlen (p
));
2991 strcpy (switches
[n_switches
].args
[0], &p
[1]);
2992 switches
[n_switches
].args
[1] = 0;
2995 switches
[n_switches
].args
= 0;
2997 switches
[n_switches
].live_cond
= 0;
2998 switches
[n_switches
].valid
= 0;
2999 /* This is always valid, since gcc.c itself understands it. */
3000 if (!strcmp (p
, "save-temps"))
3001 switches
[n_switches
].valid
= 1;
3004 char ch
= switches
[n_switches
].part1
[0];
3005 if (ch
== 'V' || ch
== 'b' || ch
== 'B')
3006 switches
[n_switches
].valid
= 1;
3012 #ifdef HAVE_OBJECT_SUFFIX
3013 argv
[i
] = convert_filename (argv
[i
], 0);
3016 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], R_OK
) < 0)
3018 perror_with_name (argv
[i
]);
3023 infiles
[n_infiles
].language
= spec_lang
;
3024 infiles
[n_infiles
++].name
= argv
[i
];
3029 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
3030 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
3032 switches
[n_switches
].part1
= 0;
3033 infiles
[n_infiles
].name
= 0;
3036 /* Process a spec string, accumulating and running commands. */
3038 /* These variables describe the input file name.
3039 input_file_number is the index on outfiles of this file,
3040 so that the output file name can be stored for later use by %o.
3041 input_basename is the start of the part of the input file
3042 sans all directory names, and basename_length is the number
3043 of characters starting there excluding the suffix .c or whatever. */
3045 static char *input_filename
;
3046 static int input_file_number
;
3047 static int input_filename_length
;
3048 static int basename_length
;
3049 static char *input_basename
;
3050 static char *input_suffix
;
3052 /* These are variables used within do_spec and do_spec_1. */
3054 /* Nonzero if an arg has been started and not yet terminated
3055 (with space, tab or newline). */
3056 static int arg_going
;
3058 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3059 is a temporary file name. */
3060 static int delete_this_arg
;
3062 /* Nonzero means %w has been seen; the next arg to be terminated
3063 is the output file name of this compilation. */
3064 static int this_is_output_file
;
3066 /* Nonzero means %s has been seen; the next arg to be terminated
3067 is the name of a library file and we should try the standard
3068 search dirs for it. */
3069 static int this_is_library_file
;
3071 /* Nonzero means that the input of this command is coming from a pipe. */
3072 static int input_from_pipe
;
3074 /* Process the spec SPEC and run the commands specified therein.
3075 Returns 0 if the spec is successfully processed; -1 if failed. */
3085 delete_this_arg
= 0;
3086 this_is_output_file
= 0;
3087 this_is_library_file
= 0;
3088 input_from_pipe
= 0;
3090 value
= do_spec_1 (spec
, 0, NULL_PTR
);
3092 /* Force out any unfinished command.
3093 If -pipe, this forces out the last command if it ended in `|'. */
3096 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3099 if (argbuf_index
> 0)
3106 /* Process the sub-spec SPEC as a portion of a larger spec.
3107 This is like processing a whole spec except that we do
3108 not initialize at the beginning and we do not supply a
3109 newline by default at the end.
3110 INSWITCH nonzero means don't process %-sequences in SPEC;
3111 in this case, % is treated as an ordinary character.
3112 This is used while substituting switches.
3113 INSWITCH nonzero also causes SPC not to terminate an argument.
3115 Value is zero unless a line was finished
3116 and the command on that line reported an error. */
3119 do_spec_1 (spec
, inswitch
, soft_matched_part
)
3122 char *soft_matched_part
;
3124 register char *p
= spec
;
3131 /* If substituting a switch, treat all chars like letters.
3132 Otherwise, NL, SPC, TAB and % are special. */
3133 switch (inswitch
? 'a' : c
)
3136 /* End of line: finish any pending argument,
3137 then run the pending command if one has been started. */
3140 obstack_1grow (&obstack
, 0);
3141 string
= obstack_finish (&obstack
);
3142 if (this_is_library_file
)
3143 string
= find_file (string
);
3144 store_arg (string
, delete_this_arg
, this_is_output_file
);
3145 if (this_is_output_file
)
3146 outfiles
[input_file_number
] = string
;
3150 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3152 for (i
= 0; i
< n_switches
; i
++)
3153 if (!strcmp (switches
[i
].part1
, "pipe"))
3156 /* A `|' before the newline means use a pipe here,
3157 but only if -pipe was specified.
3158 Otherwise, execute now and don't pass the `|' as an arg. */
3161 input_from_pipe
= 1;
3162 switches
[i
].valid
= 1;
3169 if (argbuf_index
> 0)
3175 /* Reinitialize for a new command, and for a new argument. */
3178 delete_this_arg
= 0;
3179 this_is_output_file
= 0;
3180 this_is_library_file
= 0;
3181 input_from_pipe
= 0;
3185 /* End any pending argument. */
3188 obstack_1grow (&obstack
, 0);
3189 string
= obstack_finish (&obstack
);
3190 if (this_is_library_file
)
3191 string
= find_file (string
);
3192 store_arg (string
, delete_this_arg
, this_is_output_file
);
3193 if (this_is_output_file
)
3194 outfiles
[input_file_number
] = string
;
3198 obstack_1grow (&obstack
, c
);
3204 /* Space or tab ends an argument if one is pending. */
3207 obstack_1grow (&obstack
, 0);
3208 string
= obstack_finish (&obstack
);
3209 if (this_is_library_file
)
3210 string
= find_file (string
);
3211 store_arg (string
, delete_this_arg
, this_is_output_file
);
3212 if (this_is_output_file
)
3213 outfiles
[input_file_number
] = string
;
3215 /* Reinitialize for a new argument. */
3217 delete_this_arg
= 0;
3218 this_is_output_file
= 0;
3219 this_is_library_file
= 0;
3226 fatal ("Invalid specification! Bug in cc.");
3229 obstack_grow (&obstack
, input_basename
, basename_length
);
3234 delete_this_arg
= 2;
3237 /* Dump out the directories specified with LIBRARY_PATH,
3238 followed by the absolute directories
3239 that we search for startfiles. */
3242 struct prefix_list
*pl
= startfile_prefixes
.plist
;
3244 char *buffer
= (char *) xmalloc (bufsize
);
3247 for (; pl
; pl
= pl
->next
)
3249 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3250 /* Used on systems which record the specified -L dirs
3251 and use them to search for dynamic linking. */
3252 /* Relative directories always come from -B,
3253 and it is better not to use them for searching
3254 at run time. In particular, stage1 loses */
3255 if (pl
->prefix
[0] != '/' && pl
->prefix
[0] != DIR_SEPARATOR
)
3258 /* Try subdirectory if there is one. */
3259 if (multilib_dir
!= NULL
)
3263 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
3265 bufsize
= (strlen (pl
->prefix
)
3266 + strlen (machine_suffix
)) * 2 + 1;
3267 buffer
= (char *) xrealloc (buffer
, bufsize
);
3268 strcpy (buffer
, pl
->prefix
);
3269 strcat (buffer
, machine_suffix
);
3270 if (is_directory (buffer
, multilib_dir
, 1))
3272 do_spec_1 ("-L", 0, NULL_PTR
);
3273 #ifdef SPACE_AFTER_L_OPTION
3274 do_spec_1 (" ", 0, NULL_PTR
);
3276 do_spec_1 (buffer
, 1, NULL_PTR
);
3277 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3278 /* Make this a separate argument. */
3279 do_spec_1 (" ", 0, NULL_PTR
);
3282 if (!pl
->require_machine_suffix
)
3284 if (is_directory (pl
->prefix
, multilib_dir
, 1))
3286 do_spec_1 ("-L", 0, NULL_PTR
);
3287 #ifdef SPACE_AFTER_L_OPTION
3288 do_spec_1 (" ", 0, NULL_PTR
);
3290 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3291 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3292 /* Make this a separate argument. */
3293 do_spec_1 (" ", 0, NULL_PTR
);
3299 if (is_directory (pl
->prefix
, machine_suffix
, 1))
3301 do_spec_1 ("-L", 0, NULL_PTR
);
3302 #ifdef SPACE_AFTER_L_OPTION
3303 do_spec_1 (" ", 0, NULL_PTR
);
3305 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3306 /* Remove slash from machine_suffix. */
3307 if (strlen (machine_suffix
) >= bufsize
)
3308 bufsize
= strlen (machine_suffix
) * 2 + 1;
3309 buffer
= (char *) xrealloc (buffer
, bufsize
);
3310 strcpy (buffer
, machine_suffix
);
3311 idx
= strlen (buffer
);
3312 if (buffer
[idx
- 1] == '/'
3313 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3314 buffer
[idx
- 1] = 0;
3315 do_spec_1 (buffer
, 1, NULL_PTR
);
3316 /* Make this a separate argument. */
3317 do_spec_1 (" ", 0, NULL_PTR
);
3320 if (!pl
->require_machine_suffix
)
3322 if (is_directory (pl
->prefix
, "", 1))
3324 do_spec_1 ("-L", 0, NULL_PTR
);
3325 #ifdef SPACE_AFTER_L_OPTION
3326 do_spec_1 (" ", 0, NULL_PTR
);
3328 /* Remove slash from pl->prefix. */
3329 if (strlen (pl
->prefix
) >= bufsize
)
3330 bufsize
= strlen (pl
->prefix
) * 2 + 1;
3331 buffer
= (char *) xrealloc (buffer
, bufsize
);
3332 strcpy (buffer
, pl
->prefix
);
3333 idx
= strlen (buffer
);
3334 if (buffer
[idx
- 1] == '/'
3335 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3336 buffer
[idx
- 1] = 0;
3337 do_spec_1 (buffer
, 1, NULL_PTR
);
3338 /* Make this a separate argument. */
3339 do_spec_1 (" ", 0, NULL_PTR
);
3348 /* {...:%efoo} means report an error with `foo' as error message
3349 and don't execute any more commands for this file. */
3353 while (*p
!= 0 && *p
!= '\n') p
++;
3354 buf
= (char *) alloca (p
- q
+ 1);
3355 strncpy (buf
, q
, p
- q
);
3365 if (save_temps_flag
)
3367 obstack_grow (&obstack
, input_basename
, basename_length
);
3368 delete_this_arg
= 0;
3372 #ifdef MKTEMP_EACH_FILE
3373 /* ??? This has a problem: the total number of
3374 values mktemp can return is limited.
3375 That matters for the names of object files.
3376 In 2.4, do something about that. */
3377 struct temp_name
*t
;
3379 while (*p
== '.' || isalpha (*p
)
3380 || (p
[0] == '%' && p
[1] == 'O'))
3383 /* See if we already have an association of %g/%u/%U and
3385 for (t
= temp_names
; t
; t
= t
->next
)
3386 if (t
->length
== p
- suffix
3387 && strncmp (t
->suffix
, suffix
, p
- suffix
) == 0
3388 && t
->unique
== (c
!= 'g'))
3391 /* Make a new association if needed. %u requires one. */
3392 if (t
== 0 || c
== 'u')
3396 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
3397 t
->next
= temp_names
;
3400 t
->length
= p
- suffix
;
3401 t
->suffix
= save_string (suffix
, p
- suffix
);
3402 t
->unique
= (c
!= 'g');
3403 temp_filename
= choose_temp_base ();
3404 temp_filename_length
= strlen (temp_filename
);
3405 t
->filename
= temp_filename
;
3406 t
->filename_length
= temp_filename_length
;
3409 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
3410 delete_this_arg
= 1;
3412 obstack_grow (&obstack
, temp_filename
, temp_filename_length
);
3413 if (c
== 'u' || c
== 'U')
3419 sprintf (buff
, "%d", unique
);
3420 obstack_grow (&obstack
, buff
, strlen (buff
));
3423 delete_this_arg
= 1;
3429 obstack_grow (&obstack
, input_filename
, input_filename_length
);
3435 struct prefix_list
*pl
= include_prefixes
.plist
;
3437 if (gcc_exec_prefix
)
3439 do_spec_1 ("-iprefix", 1, NULL_PTR
);
3440 /* Make this a separate argument. */
3441 do_spec_1 (" ", 0, NULL_PTR
);
3442 do_spec_1 (gcc_exec_prefix
, 1, NULL_PTR
);
3443 do_spec_1 (" ", 0, NULL_PTR
);
3446 for (; pl
; pl
= pl
->next
)
3448 do_spec_1 ("-isystem", 1, NULL_PTR
);
3449 /* Make this a separate argument. */
3450 do_spec_1 (" ", 0, NULL_PTR
);
3451 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3452 do_spec_1 (" ", 0, NULL_PTR
);
3458 for (i
= 0; i
< n_infiles
; i
++)
3459 store_arg (outfiles
[i
], 0, 0);
3463 obstack_grow (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
3468 this_is_library_file
= 1;
3472 this_is_output_file
= 1;
3477 int cur_index
= argbuf_index
;
3478 /* Handle the {...} following the %W. */
3481 p
= handle_braces (p
+ 1);
3484 /* If any args were output, mark the last one for deletion
3486 if (argbuf_index
!= cur_index
)
3487 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
3491 /* %x{OPTION} records OPTION for %X to output. */
3497 /* Skip past the option value and make a copy. */
3502 string
= save_string (p1
+ 1, p
- p1
- 2);
3504 /* See if we already recorded this option. */
3505 for (i
= 0; i
< n_linker_options
; i
++)
3506 if (! strcmp (string
, linker_options
[i
]))
3512 /* This option is new; add it. */
3514 if (!linker_options
)
3516 = (char **) xmalloc (n_linker_options
* sizeof (char **));
3519 = (char **) xrealloc (linker_options
,
3520 n_linker_options
* sizeof (char **));
3522 linker_options
[n_linker_options
- 1] = string
;
3526 /* Dump out the options accumulated previously using %x. */
3528 for (i
= 0; i
< n_linker_options
; i
++)
3530 do_spec_1 (linker_options
[i
], 1, NULL_PTR
);
3531 /* Make each accumulated option a separate argument. */
3532 do_spec_1 (" ", 0, NULL_PTR
);
3536 /* Dump out the options accumulated previously using -Wa,. */
3538 for (i
= 0; i
< n_assembler_options
; i
++)
3540 do_spec_1 (assembler_options
[i
], 1, NULL_PTR
);
3541 /* Make each accumulated option a separate argument. */
3542 do_spec_1 (" ", 0, NULL_PTR
);
3546 /* Dump out the options accumulated previously using -Wp,. */
3548 for (i
= 0; i
< n_preprocessor_options
; i
++)
3550 do_spec_1 (preprocessor_options
[i
], 1, NULL_PTR
);
3551 /* Make each accumulated option a separate argument. */
3552 do_spec_1 (" ", 0, NULL_PTR
);
3556 /* Here are digits and numbers that just process
3557 a certain constant string as a spec. */
3560 value
= do_spec_1 (cc1_spec
, 0, NULL_PTR
);
3566 value
= do_spec_1 (cc1plus_spec
, 0, NULL_PTR
);
3572 value
= do_spec_1 (asm_spec
, 0, NULL_PTR
);
3578 value
= do_spec_1 (asm_final_spec
, 0, NULL_PTR
);
3584 value
= do_spec_1 (signed_char_spec
, 0, NULL_PTR
);
3590 value
= do_spec_1 (cpp_spec
, 0, NULL_PTR
);
3596 value
= do_spec_1 (endfile_spec
, 0, NULL_PTR
);
3602 value
= do_spec_1 (link_spec
, 0, NULL_PTR
);
3608 value
= do_spec_1 (lib_spec
, 0, NULL_PTR
);
3614 value
= do_spec_1 (libgcc_spec
, 0, NULL_PTR
);
3621 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
3625 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3629 if (! strncmp (y
, "-D", 2))
3630 /* Copy the whole option. */
3631 while (*y
&& *y
!= ' ' && *y
!= '\t')
3633 else if (*y
== ' ' || *y
== '\t')
3634 /* Copy whitespace to the result. */
3636 /* Don't copy other options. */
3643 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3651 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
3655 /* Copy all of CPP_PREDEFINES into BUF,
3656 but put __ after every -D and at the end of each arg. */
3660 if (! strncmp (y
, "-D", 2))
3668 || (*(y
+1) != '_' && ! isupper (*(y
+1))))
3670 /* Stick __ at front of macro name. */
3673 /* Arrange to stick __ at the end as well. */
3677 /* Copy the macro name. */
3678 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3687 /* Copy the value given, if any. */
3688 while (*y
&& *y
!= ' ' && *y
!= '\t')
3691 else if (*y
== ' ' || *y
== '\t')
3692 /* Copy whitespace to the result. */
3694 /* Don't copy -A options */
3700 /* Copy all of CPP_PREDEFINES into BUF,
3701 but put __ after every -D. */
3705 if (! strncmp (y
, "-D", 2))
3710 || (*(y
+1) != '_' && ! isupper (*(y
+1))))
3712 /* Stick -D__ at front of macro name. */
3718 /* Copy the macro name. */
3719 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3722 /* Copy the value given, if any. */
3723 while (*y
&& *y
!= ' ' && *y
!= '\t')
3728 /* Do not copy this macro - we have just done it before */
3729 while (*y
&& *y
!= ' ' && *y
!= '\t')
3733 else if (*y
== ' ' || *y
== '\t')
3734 /* Copy whitespace to the result. */
3736 /* Don't copy -A options */
3742 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3746 if (! strncmp (y
, "-A", 2))
3747 /* Copy the whole option. */
3748 while (*y
&& *y
!= ' ' && *y
!= '\t')
3750 else if (*y
== ' ' || *y
== '\t')
3751 /* Copy whitespace to the result. */
3753 /* Don't copy other options. */
3760 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3767 value
= do_spec_1 (startfile_spec
, 0, NULL_PTR
);
3772 /* Here we define characters other than letters and digits. */
3775 p
= handle_braces (p
);
3781 obstack_1grow (&obstack
, '%');
3785 do_spec_1 (soft_matched_part
, 1, NULL_PTR
);
3786 do_spec_1 (" ", 0, NULL_PTR
);
3789 /* Process a string found as the value of a spec given by name.
3790 This feature allows individual machine descriptions
3791 to add and use their own specs.
3792 %[...] modifies -D options the way %P does;
3793 %(...) uses the spec unmodified. */
3798 struct spec_list
*sl
;
3801 /* The string after the S/P is the name of a spec that is to be
3803 while (*p
&& *p
!= ')' && *p
!= ']')
3806 /* See if it's in the list */
3807 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
3808 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
3810 name
= *(sl
->ptr_spec
);
3812 fprintf (stderr
, "Processing spec %c%s%c, which is '%s'\n",
3813 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
3822 value
= do_spec_1 (name
, 0, NULL_PTR
);
3828 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
3832 /* Copy all of NAME into BUF, but put __ after
3833 every -D and at the end of each arg, */
3838 if (! strncmp (y
, "-D", 2))
3848 else if (flag
&& (*y
== ' ' || *y
== '\t' || *y
== '='
3849 || *y
== '}' || *y
== 0))
3862 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3868 /* Discard the closing paren or bracket. */
3876 int c1
= *p
++; /* Select first or second version number. */
3877 char *v
= compiler_version
;
3880 /* The format of the version string is
3881 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3883 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3884 while (! isdigit (*v
))
3886 if (v
> compiler_version
&& v
[-1] != '-')
3889 /* If desired, advance to second version number. */
3892 /* Set V after the first period. */
3893 while (isdigit (*v
))
3900 /* Set Q at the next period or at the end. */
3902 while (isdigit (*q
))
3904 if (*q
!= 0 && *q
!= ' ' && *q
!= '.' && *q
!= '-')
3907 /* Put that part into the command. */
3908 obstack_grow (&obstack
, v
, q
- v
);
3914 if (input_from_pipe
)
3915 do_spec_1 ("-", 0, NULL_PTR
);
3924 /* Backslash: treat next character as ordinary. */
3929 /* Ordinary character: put it into the current argument. */
3930 obstack_1grow (&obstack
, c
);
3934 return 0; /* End of string */
3937 /* Return 0 if we call do_spec_1 and that returns -1. */
3948 int include_blanks
= 1;
3951 /* A '^' after the open-brace means to not give blanks before args. */
3952 include_blanks
= 0, ++p
;
3955 /* A `|' after the open-brace means,
3956 if the test fails, output a single minus sign rather than nothing.
3957 This is used in %{|!pipe:...}. */
3961 /* A `!' after the open-brace negates the condition:
3962 succeed if the specified switch is not present. */
3966 /* A `.' after the open-brace means test against the current suffix. */
3976 while (*p
!= ':' && *p
!= '}') p
++;
3979 register int count
= 1;
3997 int found
= (input_suffix
!= 0
3998 && strlen (input_suffix
) == p
- filter
3999 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
4005 && do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
4010 else if (p
[-1] == '*' && p
[0] == '}')
4012 /* Substitute all matching switches as separate args. */
4015 for (i
= 0; i
< n_switches
; i
++)
4016 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4017 && check_live_switch (i
, p
- filter
))
4018 give_switch (i
, 0, include_blanks
);
4022 /* Test for presence of the specified switch. */
4026 /* If name specified ends in *, as in {x*:...},
4027 check for %* and handle that case. */
4028 if (p
[-1] == '*' && !negate
)
4033 /* First see whether we have %*. */
4037 if (*r
== '%' && r
[1] == '*')
4041 /* If we do, handle that case. */
4044 /* Substitute all matching switches as separate args.
4045 But do this by substituting for %*
4046 in the text that follows the colon. */
4048 unsigned hard_match_len
= p
- filter
- 1;
4049 char *string
= save_string (p
+ 1, q
- p
- 2);
4051 for (i
= 0; i
< n_switches
; i
++)
4052 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4053 && check_live_switch (i
, -1))
4055 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
4056 /* Pass any arguments this switch has. */
4057 give_switch (i
, 1, 1);
4064 /* If name specified ends in *, as in {x*:...},
4065 check for presence of any switch name starting with x. */
4068 for (i
= 0; i
< n_switches
; i
++)
4070 unsigned hard_match_len
= p
- filter
- 1;
4072 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4073 && check_live_switch (i
, hard_match_len
))
4079 /* Otherwise, check for presence of exact name specified. */
4082 for (i
= 0; i
< n_switches
; i
++)
4084 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4085 && switches
[i
].part1
[p
- filter
] == 0
4086 && check_live_switch (i
, -1))
4094 /* If it is as desired (present for %{s...}, absent for %{-s...})
4095 then substitute either the switch or the specified
4096 conditional text. */
4097 if (present
!= negate
)
4101 give_switch (i
, 0, include_blanks
);
4105 if (do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
4111 /* Here if a %{|...} conditional fails: output a minus sign,
4112 which means "standard output" or "standard input". */
4113 do_spec_1 ("-", 0, NULL_PTR
);
4120 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4121 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4122 spec, or -1 if either exact match or %* is used.
4124 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4125 whose value does not begin with "no-" is obsoleted by the same value
4126 with the "no-", similarly for a switch with the "no-" prefix. */
4129 check_live_switch (switchnum
, prefix_length
)
4133 char *name
= switches
[switchnum
].part1
;
4136 /* In the common case of {<at-most-one-letter>*}, a negating
4137 switch would always match, so ignore that case. We will just
4138 send the conflicting switches to the compiler phase. */
4139 if (prefix_length
>= 0 && prefix_length
<= 1)
4142 /* If we already processed this switch and determined if it was
4143 live or not, return our past determination. */
4144 if (switches
[switchnum
].live_cond
!= 0)
4145 return switches
[switchnum
].live_cond
> 0;
4147 /* Now search for duplicate in a manner that depends on the name. */
4151 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4152 if (switches
[i
].part1
[0] == 'O')
4154 switches
[switchnum
].valid
= 1;
4155 switches
[switchnum
].live_cond
= -1;
4160 case 'W': case 'f': case 'm':
4161 if (! strncmp (name
+ 1, "no-", 3))
4163 /* We have Xno-YYY, search for XYYY. */
4164 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4165 if (switches
[i
].part1
[0] == name
[0]
4166 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
4168 switches
[switchnum
].valid
= 1;
4169 switches
[switchnum
].live_cond
= -1;
4175 /* We have XYYY, search for Xno-YYY. */
4176 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4177 if (switches
[i
].part1
[0] == name
[0]
4178 && switches
[i
].part1
[1] == 'n'
4179 && switches
[i
].part1
[2] == 'o'
4180 && switches
[i
].part1
[3] == '-'
4181 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
4183 switches
[switchnum
].valid
= 1;
4184 switches
[switchnum
].live_cond
= -1;
4191 /* Otherwise the switch is live. */
4192 switches
[switchnum
].live_cond
= 1;
4196 /* Pass a switch to the current accumulating command
4197 in the same form that we received it.
4198 SWITCHNUM identifies the switch; it is an index into
4199 the vector of switches gcc received, which is `switches'.
4200 This cannot fail since it never finishes a command line.
4202 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4204 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
4208 give_switch (switchnum
, omit_first_word
, include_blanks
)
4210 int omit_first_word
;
4213 if (!omit_first_word
)
4215 do_spec_1 ("-", 0, NULL_PTR
);
4216 do_spec_1 (switches
[switchnum
].part1
, 1, NULL_PTR
);
4219 if (switches
[switchnum
].args
!= 0)
4222 for (p
= switches
[switchnum
].args
; *p
; p
++)
4225 do_spec_1 (" ", 0, NULL_PTR
);
4226 do_spec_1 (*p
, 1, NULL_PTR
);
4230 do_spec_1 (" ", 0, NULL_PTR
);
4231 switches
[switchnum
].valid
= 1;
4234 /* Search for a file named NAME trying various prefixes including the
4235 user's -B prefix and some standard ones.
4236 Return the absolute file name found. If nothing is found, return NAME. */
4244 /* Try multilib_dir if it is defined. */
4245 if (multilib_dir
!= NULL
)
4249 try = (char *) alloca (strlen (multilib_dir
) + strlen (name
) + 2);
4250 strcpy (try, multilib_dir
);
4251 strcat (try, dir_separator_str
);
4254 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
4256 /* If we don't find it in the multi library dir, then fall
4257 through and look for it in the normal places. */
4258 if (newname
!= NULL
)
4262 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
4263 return newname
? newname
: name
;
4266 /* Determine whether a directory exists. If LINKER, return 0 for
4267 certain fixed names not needed by the linker. If not LINKER, it is
4268 only important to return 0 if the host machine has a small ARG_MAX
4272 is_directory (path1
, path2
, linker
)
4277 int len1
= strlen (path1
);
4278 int len2
= strlen (path2
);
4279 char *path
= (char *) alloca (3 + len1
+ len2
);
4283 #ifndef SMALL_ARG_MAX
4288 /* Construct the path from the two parts. Ensure the string ends with "/.".
4289 The resulting path will be a directory even if the given path is a
4291 bcopy (path1
, path
, len1
);
4292 bcopy (path2
, path
+ len1
, len2
);
4293 cp
= path
+ len1
+ len2
;
4294 if (cp
[-1] != '/' && cp
[-1] != DIR_SEPARATOR
)
4295 *cp
++ = DIR_SEPARATOR
;
4299 /* Exclude directories that the linker is known to search. */
4302 && strcmp (path
, concat (dir_separator_str
, "lib",
4303 dir_separator_str
, ".", NULL_PTR
)) == 0)
4305 && strcmp (path
, concat (dir_separator_str
, "usr",
4306 dir_separator_str
, "lib",
4307 dir_separator_str
, ".", NULL_PTR
)) == 0)))
4310 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
4313 /* On fatal signals, delete all the temporary files. */
4316 fatal_error (signum
)
4319 signal (signum
, SIG_DFL
);
4320 delete_failure_queue ();
4321 delete_temp_files ();
4322 /* Get the same signal again, this time not handled,
4323 so its normal effect occurs. */
4324 kill (getpid (), signum
);
4335 int linker_was_run
= 0;
4336 char *explicit_link_files
;
4339 struct user_specs
*uptr
;
4341 p
= argv
[0] + strlen (argv
[0]);
4342 while (p
!= argv
[0] && p
[-1] != '/' && p
[-1] != DIR_SEPARATOR
) --p
;
4345 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
4346 signal (SIGINT
, fatal_error
);
4348 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
4349 signal (SIGHUP
, fatal_error
);
4351 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
4352 signal (SIGTERM
, fatal_error
);
4354 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
4355 signal (SIGPIPE
, fatal_error
);
4359 argbuf
= (char **) xmalloc (argbuf_length
* sizeof (char *));
4361 obstack_init (&obstack
);
4363 /* Build multilib_select, et. al from the separate lines that make up each
4364 multilib selection. */
4366 char **q
= multilib_raw
;
4369 obstack_init (&multilib_obstack
);
4370 while ((p
= *q
++) != (char *) 0)
4371 obstack_grow (&multilib_obstack
, p
, strlen (p
));
4373 obstack_1grow (&multilib_obstack
, 0);
4374 multilib_select
= obstack_finish (&multilib_obstack
);
4376 q
= multilib_matches_raw
;
4377 while ((p
= *q
++) != (char *) 0)
4378 obstack_grow (&multilib_obstack
, p
, strlen (p
));
4380 obstack_1grow (&multilib_obstack
, 0);
4381 multilib_matches
= obstack_finish (&multilib_obstack
);
4385 i
< sizeof (multilib_defaults_raw
) / sizeof (multilib_defaults_raw
[0]);
4389 obstack_1grow (&multilib_obstack
, ' ');
4390 obstack_grow (&multilib_obstack
,
4391 multilib_defaults_raw
[i
],
4392 strlen (multilib_defaults_raw
[i
]));
4396 obstack_1grow (&multilib_obstack
, 0);
4397 multilib_defaults
= obstack_finish (&multilib_obstack
);
4400 /* Set up to remember the pathname of gcc and any options
4401 needed for collect. We use argv[0] instead of programname because
4402 we need the complete pathname. */
4403 obstack_init (&collect_obstack
);
4404 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4405 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0])+1);
4406 putenv (obstack_finish (&collect_obstack
));
4408 #ifdef INIT_ENVIRONMENT
4409 /* Set up any other necessary machine specific environment variables. */
4410 putenv (INIT_ENVIRONMENT
);
4413 /* Choose directory for temp files. */
4415 temp_filename
= choose_temp_base ();
4416 temp_filename_length
= strlen (temp_filename
);
4418 /* Make a table of what switches there are (switches, n_switches).
4419 Make a table of specified input files (infiles, n_infiles).
4420 Decode switches that are handled locally. */
4422 process_command (argc
, argv
);
4428 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4430 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4431 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4434 for (i
= 0; i
< n_switches
; i
++)
4439 obstack_grow (&collect_obstack
, " ", 1);
4442 obstack_grow (&collect_obstack
, "'-", 2);
4443 q
= switches
[i
].part1
;
4444 while (p
= (char *) index (q
,'\''))
4446 obstack_grow (&collect_obstack
, q
, p
-q
);
4447 obstack_grow (&collect_obstack
, "'\\''", 4);
4450 obstack_grow (&collect_obstack
, q
, strlen (q
));
4451 obstack_grow (&collect_obstack
, "'", 1);
4453 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4455 obstack_grow (&collect_obstack
, " '", 2);
4457 while (p
= (char *) index (q
,'\''))
4459 obstack_grow (&collect_obstack
, q
, p
-q
);
4460 obstack_grow (&collect_obstack
, "'\\''", 4);
4463 obstack_grow (&collect_obstack
, q
, strlen (q
));
4464 obstack_grow (&collect_obstack
, "'", 1);
4467 obstack_grow (&collect_obstack
, "\0", 1);
4468 putenv (obstack_finish (&collect_obstack
));
4471 /* Initialize the vector of specs to just the default.
4472 This means one element containing 0s, as a terminator. */
4474 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
4475 bcopy ((char *) default_compilers
, (char *) compilers
,
4476 sizeof default_compilers
);
4477 n_compilers
= n_default_compilers
;
4479 /* Read specs from a file if there is one. */
4481 machine_suffix
= concat (spec_machine
, dir_separator_str
,
4482 spec_version
, dir_separator_str
, NULL_PTR
);
4483 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL_PTR
);
4485 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
4486 /* Read the specs file unless it is a default one. */
4487 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
4488 read_specs (specs_file
, TRUE
);
4492 /* We need to check standard_exec_prefix/just_machine_suffix/specs
4493 for any override of as, ld and libraries. */
4494 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
4495 + strlen (just_machine_suffix
)
4496 + sizeof ("specs"));
4498 strcpy (specs_file
, standard_exec_prefix
);
4499 strcat (specs_file
, just_machine_suffix
);
4500 strcat (specs_file
, "specs");
4501 if (access (specs_file
, R_OK
) == 0)
4502 read_specs (specs_file
, TRUE
);
4504 /* Process any user specified specs in the order given on the command
4506 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
4508 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
, R_OK
);
4509 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
4512 /* If not cross-compiling, look for startfiles in the standard places. */
4513 /* The fact that these are done here, after reading the specs file,
4514 means that it cannot be found in these directories.
4515 But that's okay. It should never be there anyway. */
4516 if (*cross_compile
== '0')
4518 #ifdef MD_EXEC_PREFIX
4519 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
4520 add_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
4523 #ifdef MD_STARTFILE_PREFIX
4524 add_prefix (&startfile_prefixes
, md_startfile_prefix
, "GCC",
4528 #ifdef MD_STARTFILE_PREFIX_1
4529 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, "GCC",
4533 /* If standard_startfile_prefix is relative, base it on
4534 standard_exec_prefix. This lets us move the installed tree
4535 as a unit. If GCC_EXEC_PREFIX is defined, base
4536 standard_startfile_prefix on that as well. */
4537 if (*standard_startfile_prefix
== '/'
4538 || *standard_startfile_prefix
== DIR_SEPARATOR
)
4539 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, "BINUTILS",
4543 if (gcc_exec_prefix
)
4544 add_prefix (&startfile_prefixes
,
4545 concat (gcc_exec_prefix
, machine_suffix
,
4546 standard_startfile_prefix
, NULL_PTR
),
4547 NULL_PTR
, 0, 0, NULL_PTR
);
4548 add_prefix (&startfile_prefixes
,
4549 concat (standard_exec_prefix
,
4551 standard_startfile_prefix
, NULL_PTR
),
4552 NULL_PTR
, 0, 0, NULL_PTR
);
4555 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
4556 "BINUTILS", 0, 0, NULL_PTR
);
4557 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
4558 "BINUTILS", 0, 0, NULL_PTR
);
4559 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4560 add_prefix (&startfile_prefixes
, "./", NULL_PTR
, 0, 1, NULL_PTR
);
4565 if (*standard_startfile_prefix
!= DIR_SEPARATOR
&& gcc_exec_prefix
)
4566 add_prefix (&startfile_prefixes
,
4567 concat (gcc_exec_prefix
, machine_suffix
,
4568 standard_startfile_prefix
, NULL_PTR
),
4569 "BINUTILS", 0, 0, NULL_PTR
);
4572 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4573 if (gcc_exec_prefix
)
4575 char * temp
= (char *) xmalloc (strlen (gcc_exec_prefix
)
4576 + strlen (spec_version
)
4577 + strlen (spec_machine
) + 3);
4578 strcpy (temp
, gcc_exec_prefix
);
4579 strcat (temp
, spec_machine
);
4580 strcat (temp
, dir_separator_str
);
4581 strcat (temp
, spec_version
);
4582 strcat (temp
, dir_separator_str
);
4583 gcc_exec_prefix
= temp
;
4586 /* Now we have the specs.
4587 Set the `valid' bits for switches that match anything in any spec. */
4589 validate_all_switches ();
4591 /* Now that we have the switches and the specs, set
4592 the subdirectory based on the options. */
4593 set_multilib_dir ();
4595 /* Warn about any switches that no pass was interested in. */
4597 for (i
= 0; i
< n_switches
; i
++)
4598 if (! switches
[i
].valid
)
4599 error ("unrecognized option `-%s'", switches
[i
].part1
);
4601 /* Obey some of the options. */
4603 if (print_search_dirs
)
4605 printf ("install: %s%s\n", standard_exec_prefix
, machine_suffix
);
4606 printf ("programs: %s\n", build_search_list (&exec_prefixes
, "", 0));
4607 printf ("libraries: %s\n", build_search_list (&startfile_prefixes
, "", 0));
4611 if (print_file_name
)
4613 printf ("%s\n", find_file (print_file_name
));
4617 if (print_prog_name
)
4619 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
4620 printf ("%s\n", (newname
? newname
: print_prog_name
));
4624 if (print_multi_lib
)
4626 print_multilib_info ();
4630 if (print_multi_directory
)
4632 if (multilib_dir
== NULL
)
4635 printf ("%s\n", multilib_dir
);
4643 /* compiler_version is truncated at the first space when initialized
4644 from version string, so truncate version_string at the first space
4645 before comparing. */
4646 for (n
= 0; version_string
[n
]; n
++)
4647 if (version_string
[n
] == ' ')
4650 if (! strncmp (version_string
, compiler_version
, n
)
4651 && compiler_version
[n
] == 0)
4652 fprintf (stderr
, "gcc version %s\n", version_string
);
4654 fprintf (stderr
, "gcc driver version %s executing gcc version %s\n",
4655 version_string
, compiler_version
);
4662 fatal ("No input files");
4664 /* Make a place to record the compiler output file names
4665 that correspond to the input files. */
4667 outfiles
= (char **) xmalloc (n_infiles
* sizeof (char *));
4668 bzero ((char *) outfiles
, n_infiles
* sizeof (char *));
4670 /* Record which files were specified explicitly as link input. */
4672 explicit_link_files
= xmalloc (n_infiles
);
4673 bzero (explicit_link_files
, n_infiles
);
4675 for (i
= 0; i
< n_infiles
; i
++)
4677 register struct compiler
*cp
= 0;
4678 int this_file_error
= 0;
4680 /* Tell do_spec what to substitute for %i. */
4682 input_filename
= infiles
[i
].name
;
4683 input_filename_length
= strlen (input_filename
);
4684 input_file_number
= i
;
4686 /* Use the same thing in %o, unless cp->spec says otherwise. */
4688 outfiles
[i
] = input_filename
;
4690 /* Figure out which compiler from the file's suffix. */
4692 cp
= lookup_compiler (infiles
[i
].name
, input_filename_length
,
4693 infiles
[i
].language
);
4697 /* Ok, we found an applicable compiler. Run its spec. */
4698 /* First say how much of input_filename to substitute for %b */
4702 if (cp
->spec
[0][0] == '#')
4703 error ("%s: %s compiler not installed on this system",
4704 input_filename
, &cp
->spec
[0][1]);
4706 input_basename
= input_filename
;
4707 for (p
= input_filename
; *p
; p
++)
4708 if (*p
== '/' || *p
== DIR_SEPARATOR
)
4709 input_basename
= p
+ 1;
4711 /* Find a suffix starting with the last period,
4712 and set basename_length to exclude that suffix. */
4713 basename_length
= strlen (input_basename
);
4714 p
= input_basename
+ basename_length
;
4715 while (p
!= input_basename
&& *p
!= '.') --p
;
4716 if (*p
== '.' && p
!= input_basename
)
4718 basename_length
= p
- input_basename
;
4719 input_suffix
= p
+ 1;
4725 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4727 len
+= strlen (cp
->spec
[j
]);
4729 p
= (char *) xmalloc (len
+ 1);
4732 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4735 strcpy (p
+ len
, cp
->spec
[j
]);
4736 len
+= strlen (cp
->spec
[j
]);
4739 value
= do_spec (p
);
4742 this_file_error
= 1;
4745 /* If this file's name does not contain a recognized suffix,
4746 record it as explicit linker input. */
4749 explicit_link_files
[i
] = 1;
4751 /* Clear the delete-on-failure queue, deleting the files in it
4752 if this compilation failed. */
4754 if (this_file_error
)
4756 delete_failure_queue ();
4759 /* If this compilation succeeded, don't delete those files later. */
4760 clear_failure_queue ();
4763 /* Run ld to link all the compiler output files. */
4765 if (error_count
== 0)
4767 int tmp
= execution_count
;
4771 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4773 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH=");
4774 putenv_from_prefixes (&startfile_prefixes
, "LIBRARY_PATH=");
4776 value
= do_spec (link_command_spec
);
4779 linker_was_run
= (tmp
!= execution_count
);
4782 /* Warn if a -B option was specified but the prefix was never used. */
4783 unused_prefix_warnings (&exec_prefixes
);
4784 unused_prefix_warnings (&startfile_prefixes
);
4786 /* If options said don't run linker,
4787 complain about input files to be given to the linker. */
4789 if (! linker_was_run
&& error_count
== 0)
4790 for (i
= 0; i
< n_infiles
; i
++)
4791 if (explicit_link_files
[i
])
4792 error ("%s: linker input file unused since linking not done",
4795 /* Delete some or all of the temporary files we made. */
4798 delete_failure_queue ();
4799 delete_temp_files ();
4801 exit (error_count
> 0 ? (signal_count
? 2 : 1) : 0);
4806 /* Find the proper compilation spec for the file name NAME,
4807 whose length is LENGTH. LANGUAGE is the specified language,
4808 or 0 if none specified. */
4810 static struct compiler
*
4811 lookup_compiler (name
, length
, language
)
4816 struct compiler
*cp
;
4818 /* Look for the language, if one is spec'd. */
4821 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4825 if (cp
->suffix
[0] == '@'
4826 && !strcmp (cp
->suffix
+ 1, language
))
4830 error ("language %s not recognized", language
);
4833 /* Look for a suffix. */
4834 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4836 if (/* The suffix `-' matches only the file name `-'. */
4837 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
4839 (strlen (cp
->suffix
) < length
4840 /* See if the suffix matches the end of NAME. */
4842 && (!strcmp (cp
->suffix
,
4843 name
+ length
- strlen (cp
->suffix
))
4844 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4845 && !strcasecmp (cp
->suffix
,
4846 name
+ length
- strlen (cp
->suffix
)))))
4848 && !strcmp (cp
->suffix
,
4849 name
+ length
- strlen (cp
->suffix
))))
4852 if (cp
->spec
[0][0] == '@')
4854 struct compiler
*new;
4855 /* An alias entry maps a suffix to a language.
4856 Search for the language; pass 0 for NAME and LENGTH
4857 to avoid infinite recursion if language not found.
4858 Construct the new compiler spec. */
4859 language
= cp
->spec
[0] + 1;
4860 new = (struct compiler
*) xmalloc (sizeof (struct compiler
));
4861 new->suffix
= cp
->suffix
;
4862 bcopy ((char *) lookup_compiler (NULL_PTR
, 0, language
)->spec
,
4863 (char *) new->spec
, sizeof new->spec
);
4866 /* A non-alias entry: return it. */
4878 register char *value
= (char *) malloc (size
);
4880 fatal ("virtual memory exhausted");
4885 xrealloc (ptr
, size
)
4889 register char *value
= (char *) realloc (ptr
, size
);
4891 fatal ("virtual memory exhausted");
4895 /* This function is based on the one in libiberty. */
4898 concat
VPROTO((char *first
, ...))
4900 register int length
;
4901 register char *newstr
;
4909 /* First compute the size of the result and get sufficient memory. */
4911 VA_START (args
, first
);
4913 first
= va_arg (args
, char *);
4921 length
+= strlen (arg
);
4922 arg
= va_arg (args
, char *);
4925 newstr
= (char *) xmalloc (length
+ 1);
4928 /* Now copy the individual pieces to the result string. */
4930 VA_START (args
, first
);
4932 first
= va_arg (args
, char *);
4941 arg
= va_arg (args
, char *);
4950 save_string (s
, len
)
4954 register char *result
= xmalloc (len
+ 1);
4956 bcopy (s
, result
, len
);
4962 pfatal_with_name (name
)
4965 fatal ("%s: %s", name
, my_strerror (errno
));
4969 perror_with_name (name
)
4972 error ("%s: %s", name
, my_strerror (errno
));
4976 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
4982 /* Space for trailing '\0' is in %s. */
4983 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
4984 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
4988 fatal ("%s: %s", errmsg_fmt
, my_strerror (errno
));
4991 /* More 'friendly' abort that prints the line and file.
4992 config.h can #define abort fancy_abort if you like that sort of thing. */
4997 fatal ("Internal gcc abort.");
5002 /* Output an error message and exit */
5005 fatal
VPROTO((char *format
, ...))
5012 VA_START (ap
, format
);
5015 format
= va_arg (ap
, char *);
5018 fprintf (stderr
, "%s: ", programname
);
5019 vfprintf (stderr
, format
, ap
);
5021 fprintf (stderr
, "\n");
5022 delete_temp_files ();
5027 error
VPROTO((char *format
, ...))
5034 VA_START (ap
, format
);
5037 format
= va_arg (ap
, char *);
5040 fprintf (stderr
, "%s: ", programname
);
5041 vfprintf (stderr
, format
, ap
);
5044 fprintf (stderr
, "\n");
5047 #else /* not HAVE_VPRINTF */
5050 fatal (msg
, arg1
, arg2
)
5051 char *msg
, *arg1
, *arg2
;
5053 error (msg
, arg1
, arg2
);
5054 delete_temp_files ();
5059 error (msg
, arg1
, arg2
)
5060 char *msg
, *arg1
, *arg2
;
5062 fprintf (stderr
, "%s: ", programname
);
5063 fprintf (stderr
, msg
, arg1
, arg2
);
5064 fprintf (stderr
, "\n");
5067 #endif /* not HAVE_VPRINTF */
5071 validate_all_switches ()
5073 struct compiler
*comp
;
5076 struct spec_list
*spec
;
5078 for (comp
= compilers
; comp
->spec
[0]; comp
++)
5081 for (i
= 0; i
< sizeof comp
->spec
/ sizeof comp
->spec
[0] && comp
->spec
[i
]; i
++)
5085 if (c
== '%' && *p
== '{')
5086 /* We have a switch spec. */
5087 validate_switches (p
+ 1);
5091 /* look through the linked list of specs read from the specs file */
5092 for (spec
= specs
; spec
; spec
= spec
->next
)
5094 p
= *(spec
->ptr_spec
);
5096 if (c
== '%' && *p
== '{')
5097 /* We have a switch spec. */
5098 validate_switches (p
+ 1);
5101 p
= link_command_spec
;
5103 if (c
== '%' && *p
== '{')
5104 /* We have a switch spec. */
5105 validate_switches (p
+ 1);
5108 /* Look at the switch-name that comes after START
5109 and mark as valid all supplied switches that match it. */
5112 validate_switches (start
)
5115 register char *p
= start
;
5130 while (*p
!= ':' && *p
!= '}') p
++;
5134 else if (p
[-1] == '*')
5136 /* Mark all matching switches as valid. */
5138 for (i
= 0; i
< n_switches
; i
++)
5139 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
))
5140 switches
[i
].valid
= 1;
5144 /* Mark an exact matching switch as valid. */
5145 for (i
= 0; i
< n_switches
; i
++)
5147 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
5148 && switches
[i
].part1
[p
- filter
] == 0)
5149 switches
[i
].valid
= 1;
5154 /* Check whether a particular argument was used. The first time we
5155 canonialize the switches to keep only the ones we care about. */
5169 static struct mswitchstr
*mswitches
;
5170 static int n_mswitches
;
5175 struct mswitchstr
*matches
;
5179 /* Break multilib_matches into the component strings of string and replacement
5181 for (q
= multilib_matches
; *q
!= '\0'; q
++)
5185 matches
= (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
5187 q
= multilib_matches
;
5198 matches
[i
].len
= q
- matches
[i
].str
;
5200 matches
[i
].replace
= ++q
;
5201 while (*q
!= ';' && *q
!= '\0')
5207 matches
[i
].rep_len
= q
- matches
[i
].replace
;
5215 /* Now build a list of the replacement string for switches that we care
5216 about. Make sure we allocate at least one entry. This prevents
5217 xmalloc from calling fatal, and prevents us from re-executing this
5220 = (struct mswitchstr
*) xmalloc ((sizeof (struct mswitchstr
))
5221 * (n_switches
? n_switches
: 1));
5222 for (i
= 0; i
< n_switches
; i
++)
5224 int xlen
= strlen (switches
[i
].part1
);
5225 for (j
= 0; j
< cnt
; j
++)
5226 if (xlen
== matches
[j
].len
&& ! strcmp (switches
[i
].part1
, matches
[j
].str
))
5228 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
5229 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
5230 mswitches
[n_mswitches
].replace
= (char *)0;
5231 mswitches
[n_mswitches
].rep_len
= 0;
5238 for (i
= 0; i
< n_mswitches
; i
++)
5239 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
5246 default_arg (p
, len
)
5253 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+1)
5255 while (*start
== ' ' || *start
== '\t')
5261 for (end
= start
+1; *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
5264 if ((end
- start
) == len
&& strncmp (p
, start
, len
) == 0)
5271 /* Work out the subdirectory to use based on the
5272 options. The format of multilib_select is a list of elements.
5273 Each element is a subdirectory name followed by a list of options
5274 followed by a semicolon. gcc will consider each line in turn. If
5275 none of the options beginning with an exclamation point are
5276 present, and all of the other options are present, that
5277 subdirectory will be used. */
5282 char *p
= multilib_select
;
5284 char *this_path
, *this_arg
;
5290 /* Ignore newlines. */
5297 /* Get the initial path. */
5305 this_path_len
= p
- this_path
;
5307 /* Check the arguments. */
5322 while (*p
!= ' ' && *p
!= ';')
5329 if (*this_arg
!= '!')
5337 /* If this is a default argument, we can just ignore it.
5338 This is true even if this_arg begins with '!'. Beginning
5339 with '!' does not mean that this argument is necessarily
5340 inappropriate for this library: it merely means that
5341 there is a more specific library which uses this
5342 argument. If this argument is a default, we need not
5343 consider that more specific library. */
5344 if (! default_arg (this_arg
, p
- this_arg
))
5346 ok
= used_arg (this_arg
, p
- this_arg
);
5357 if (this_path_len
!= 1
5358 || this_path
[0] != '.')
5360 multilib_dir
= xmalloc (this_path_len
+ 1);
5361 strncpy (multilib_dir
, this_path
, this_path_len
);
5362 multilib_dir
[this_path_len
] = '\0';
5371 /* Print out the multiple library subdirectory selection
5372 information. This prints out a series of lines. Each line looks
5373 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5374 required. Only the desired options are printed out, the negative
5375 matches. The options are print without a leading dash. There are
5376 no spaces to make it easy to use the information in the shell.
5377 Each subdirectory is printed only once. This assumes the ordering
5378 generated by the genmultilib script. */
5381 print_multilib_info ()
5383 char *p
= multilib_select
;
5384 char *last_path
= 0, *this_path
;
5386 int last_path_len
= 0;
5390 /* Ignore newlines. */
5397 /* Get the initial path. */
5406 /* If this is a duplicate, skip it. */
5407 skip
= (last_path
!= 0 && p
- this_path
== last_path_len
5408 && ! strncmp (last_path
, this_path
, last_path_len
));
5410 last_path
= this_path
;
5411 last_path_len
= p
- this_path
;
5413 /* If this directory requires any default arguments, we can skip
5414 it. We will already have printed a directory identical to
5415 this one which does not require that default argument. */
5433 while (*q
!= ' ' && *q
!= ';')
5441 && default_arg (arg
, q
- arg
))
5456 for (p1
= last_path
; p1
< p
; p1
++)
5475 use_arg
= *p
!= '!';
5480 while (*p
!= ' ' && *p
!= ';')
5495 /* If there are extra options, print them now */
5496 if (multilib_extra
&& *multilib_extra
)
5498 int print_at
= TRUE
;
5501 for (q
= multilib_extra
; *q
!= '\0'; q
++)