1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92-97, 1998 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA.
21 This paragraph is here to try to keep Sun CC from dying.
22 The number of chars here seems crucial!!!! */
24 /* This program is the user interface to the C compiler and possibly to
25 other compilers. It is used because compilation is a complicated procedure
26 which involves running several programs and passing temporary files between
27 them, forwarding the users switches to those programs selectively,
28 and deleting the temporary files at the end.
30 CC recognizes how to compile each input file by suffixes in the file names.
31 Once it knows which kind of compilation to perform, the procedure for
32 compilation is specified by a string called a "spec". */
45 #include "gansidecl.h"
49 /* ??? Need to find a GCC header to put these in. */
50 extern int pexecute
PROTO ((const char *, char * const *, const char *,
51 const char *, char **, char **, int));
52 extern int pwait
PROTO ((int, int *, int));
53 extern char *update_path
PROTO((char *, char *));
54 extern void set_std_prefix
PROTO((char *, int));
55 /* Flag arguments to pexecute. */
56 #define PEXECUTE_FIRST 1
57 #define PEXECUTE_LAST 2
58 #define PEXECUTE_SEARCH 4
59 #define PEXECUTE_VERBOSE 8
62 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
65 #define WTERMSIG(S) ((S) & 0x7f)
68 #define WIFEXITED(S) (((S) & 0xff) == 0)
71 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
75 #define exit __posix_exit
82 /* Test if something is a normal file. */
84 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
87 /* Test if something is a directory. */
89 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
92 /* By default there is no special suffix for executables. */
93 #ifdef EXECUTABLE_SUFFIX
94 #define HAVE_EXECUTABLE_SUFFIX
96 #define EXECUTABLE_SUFFIX ""
99 /* By default, the suffix for object files is ".o". */
101 #define HAVE_OBJECT_SUFFIX
103 #define OBJECT_SUFFIX ".o"
106 /* By default, colon separates directories in a path. */
107 #ifndef PATH_SEPARATOR
108 #define PATH_SEPARATOR ':'
111 #ifndef DIR_SEPARATOR
112 #define DIR_SEPARATOR '/'
115 static char dir_separator_str
[] = {DIR_SEPARATOR
, 0};
117 #define obstack_chunk_alloc xmalloc
118 #define obstack_chunk_free free
120 #ifndef GET_ENVIRONMENT
121 #define GET_ENVIRONMENT(ENV_VALUE,ENV_NAME) ENV_VALUE = getenv (ENV_NAME)
124 extern char *choose_temp_base
PROTO((void));
126 #ifndef HAVE_STRERROR
128 extern char *sys_errlist
[];
130 extern char *strerror();
134 #define kill(p,s) raise(s)
137 /* If a stage of compilation returns an exit status >= 1,
138 compilation of that file ceases. */
140 #define MIN_FATAL_STATUS 1
142 /* Flag saying to print the directories gcc will search through looking for
143 programs, libraries, etc. */
145 static int print_search_dirs
;
147 /* Flag saying to print the full filename of this file
148 as found through our usual search mechanism. */
150 static char *print_file_name
= NULL
;
152 /* As print_file_name, but search for executable file. */
154 static char *print_prog_name
= NULL
;
156 /* Flag saying to print the relative path we'd use to
157 find libgcc.a given the current compiler flags. */
159 static int print_multi_directory
;
161 /* Flag saying to print the list of subdirectories and
162 compiler flags used to select them in a standard form. */
164 static int print_multi_lib
;
166 /* Flag indicating whether we should print the command and arguments */
168 static int verbose_flag
;
170 /* Nonzero means write "temp" files in source directory
171 and use the source file's name in them, and don't delete them. */
173 static int save_temps_flag
;
175 /* The compiler version. */
177 static char *compiler_version
;
179 /* The target version specified with -V */
181 static char *spec_version
= DEFAULT_TARGET_VERSION
;
183 /* The target machine specified with -b. */
185 static char *spec_machine
= DEFAULT_TARGET_MACHINE
;
187 /* Nonzero if cross-compiling.
188 When -b is used, the value comes from the `specs' file. */
191 static char *cross_compile
= "1";
193 static char *cross_compile
= "0";
196 /* The number of errors that have occurred; the link phase will not be
197 run if this is non-zero. */
198 static int error_count
= 0;
200 /* This is the obstack which we use to allocate many strings. */
202 static struct obstack obstack
;
204 /* This is the obstack to build an environment variable to pass to
205 collect2 that describes all of the relevant switches of what to
206 pass the compiler in building the list of pointers to constructors
209 static struct obstack collect_obstack
;
211 extern char *version_string
;
213 /* Forward declaration for prototypes. */
216 static void init_spec
PROTO((void));
217 static void read_specs
PROTO((char *, int));
218 static void set_spec
PROTO((char *, char *));
219 static struct compiler
*lookup_compiler
PROTO((char *, size_t, char *));
220 static char *build_search_list
PROTO((struct path_prefix
*, char *, int));
221 static void putenv_from_prefixes
PROTO((struct path_prefix
*, char *));
222 static char *find_a_file
PROTO((struct path_prefix
*, char *, int));
223 static void add_prefix
PROTO((struct path_prefix
*, char *, char *,
225 static char *skip_whitespace
PROTO((char *));
226 static void record_temp_file
PROTO((char *, int, int));
227 static void delete_if_ordinary
PROTO((char *));
228 static void delete_temp_files
PROTO((void));
229 static void delete_failure_queue
PROTO((void));
230 static void clear_failure_queue
PROTO((void));
231 static int check_live_switch
PROTO((int, int));
232 static char *handle_braces
PROTO((char *));
233 static char *save_string
PROTO((char *, int));
234 static char *concat
PVPROTO((char *, ...));
235 static int do_spec
PROTO((char *));
236 static int do_spec_1
PROTO((char *, int, char *));
237 static char *find_file
PROTO((char *));
238 static int is_directory
PROTO((char *, char *, int));
239 static void validate_switches
PROTO((char *));
240 static void validate_all_switches
PROTO((void));
241 static void give_switch
PROTO((int, int, int));
242 static int used_arg
PROTO((char *, int));
243 static int default_arg
PROTO((char *, int));
244 static void set_multilib_dir
PROTO((void));
245 static void print_multilib_info
PROTO((void));
246 static void pfatal_with_name
PROTO((char *));
247 static void perror_with_name
PROTO((char *));
248 static void pfatal_pexecute
PROTO((char *, char *));
249 static void fatal
PVPROTO((char *, ...));
250 static void error
PVPROTO((char *, ...));
256 #ifdef LANG_SPECIFIC_DRIVER
257 extern void lang_specific_driver
PROTO ((void (*) PVPROTO((char *, ...)), int *, char ***, int *));
260 /* Specs are strings containing lines, each of which (if not blank)
261 is made up of a program name, and arguments separated by spaces.
262 The program name must be exact and start from root, since no path
263 is searched and it is unreliable to depend on the current working directory.
264 Redirection of input or output is not supported; the subprograms must
265 accept filenames saying what files to read and write.
267 In addition, the specs can contain %-sequences to substitute variable text
268 or for conditional text. Here is a table of all defined %-sequences.
269 Note that spaces are not generated automatically around the results of
270 expanding these sequences; therefore, you can concatenate them together
271 or with constant text in a single argument.
273 %% substitute one % into the program name or argument.
274 %i substitute the name of the input file being processed.
275 %b substitute the basename of the input file being processed.
276 This is the substring up to (and not including) the last period
277 and not including the directory.
278 %g substitute the temporary-file-name-base. This is a string chosen
279 once per compilation. Different temporary file names are made by
280 concatenation of constant strings on the end, as in `%g.s'.
281 %g also has the same effect of %d.
282 %u like %g, but make the temporary file name unique.
283 %U returns the last file name generated with %u.
284 %d marks the argument containing or following the %d as a
285 temporary file name, so that that file will be deleted if CC exits
286 successfully. Unlike %g, this contributes no text to the argument.
287 %w marks the argument containing or following the %w as the
288 "output file" of this compilation. This puts the argument
289 into the sequence of arguments that %o will substitute later.
291 like %{...} but mark last argument supplied within
292 as a file to be deleted on failure.
293 %o substitutes the names of all the output files, with spaces
294 automatically placed around them. You should write spaces
295 around the %o as well or the results are undefined.
296 %o is for use in the specs for running the linker.
297 Input files whose names have no recognized suffix are not compiled
298 at all, but they are included among the output files, so they will
300 %O substitutes the suffix for object files.
301 %p substitutes the standard macro predefinitions for the
302 current target machine. Use this when running cpp.
303 %P like %p, but puts `__' before and after the name of each macro.
304 (Except macros that already have __.)
306 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
307 %s current argument is the name of a library or startup file of some sort.
308 Search for that file in a standard list of directories
309 and substitute the full name found.
310 %eSTR Print STR as an error message. STR is terminated by a newline.
311 Use this when inconsistent options are detected.
312 %x{OPTION} Accumulate an option for %X.
313 %X Output the accumulated linker options specified by compilations.
314 %Y Output the accumulated assembler options specified by compilations.
315 %Z Output the accumulated preprocessor options specified by compilations.
316 %v1 Substitute the major version number of GCC.
317 (For version 2.5.n, this is 2.)
318 %v2 Substitute the minor version number of GCC.
319 (For version 2.5.n, this is 5.)
320 %a process ASM_SPEC as a spec.
321 This allows config.h to specify part of the spec for running as.
322 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
323 used here. This can be used to run a post-processor after the
324 assembler has done it's job.
325 %D Dump out a -L option for each directory in startfile_prefixes.
326 If multilib_dir is set, extra entries are generated with it affixed.
327 %l process LINK_SPEC as a spec.
328 %L process LIB_SPEC as a spec.
329 %G process LIBGCC_SPEC as a spec.
330 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
331 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
332 %c process SIGNED_CHAR_SPEC as a spec.
333 %C process CPP_SPEC as a spec. A capital C is actually used here.
334 %1 process CC1_SPEC as a spec.
335 %2 process CC1PLUS_SPEC as a spec.
336 %| output "-" if the input for the current command is coming from a pipe.
337 %* substitute the variable part of a matched option. (See below.)
338 Note that each comma in the substituted string is replaced by
340 %{S} substitutes the -S switch, if that switch was given to CC.
341 If that switch was not specified, this substitutes nothing.
342 Here S is a metasyntactic variable.
343 %{S*} substitutes all the switches specified to CC whose names start
344 with -S. This is used for -o, -D, -I, etc; switches that take
345 arguments. CC considers `-o foo' as being one switch whose
346 name starts with `o'. %{o*} would substitute this text,
347 including the space; thus, two arguments would be generated.
348 %{^S*} likewise, but don't put a blank between a switch and any args.
349 %{S*:X} substitutes X if one or more switches whose names start with -S are
350 specified to CC. Note that the tail part of the -S option
351 (i.e. the part matched by the `*') will be substituted for each
352 occurrence of %* within X.
353 %{S:X} substitutes X, but only if the -S switch was given to CC.
354 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
355 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
356 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
357 %{.S:X} substitutes X, but only if processing a file with suffix S.
358 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
359 %(Spec) processes a specification defined in a specs file as *Spec:
360 %[Spec] as above, but put __ around -D arguments
362 The conditional text X in a %{S:X} or %{!S:X} construct may contain
363 other nested % constructs or spaces, or even newlines. They are
364 processed as usual, as described above.
366 The -O, -f, -m, and -W switches are handled specifically in these
367 constructs. If another value of -O or the negated form of a -f, -m, or
368 -W switch is found later in the command line, the earlier switch
369 value is ignored, except with {S*} where S is just one letter; this
370 passes all matching options.
372 The character | is used to indicate that a command should be piped to
373 the following command, but only if -pipe is specified.
375 Note that it is built into CC which switches take arguments and which
376 do not. You might think it would be useful to generalize this to
377 allow each compiler's spec to say which switches take arguments. But
378 this cannot be done in a consistent fashion. CC cannot even decide
379 which input files have been specified without knowing which switches
380 take arguments, and it must know which input files to compile in order
381 to tell which compilers to run.
383 CC also knows implicitly that arguments starting in `-l' are to be
384 treated as compiler output files, and passed to the linker in their
385 proper position among the other output files. */
387 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
389 /* config.h can define ASM_SPEC to provide extra args to the assembler
390 or extra switch-translations. */
395 /* config.h can define ASM_FINAL_SPEC to run a post processor after
396 the assembler has run. */
397 #ifndef ASM_FINAL_SPEC
398 #define ASM_FINAL_SPEC ""
401 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
402 or extra switch-translations. */
407 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
408 or extra switch-translations. */
413 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
414 or extra switch-translations. */
416 #define CC1PLUS_SPEC ""
419 /* config.h can define LINK_SPEC to provide extra args to the linker
420 or extra switch-translations. */
425 /* config.h can define LIB_SPEC to override the default libraries. */
427 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
430 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
433 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
434 /* Have gcc do the search for libgcc.a. */
435 #define LIBGCC_SPEC "libgcc.a%s"
437 #define LIBGCC_SPEC "-lgcc"
441 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
442 #ifndef STARTFILE_SPEC
443 #define STARTFILE_SPEC \
444 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
447 /* config.h can define SWITCHES_NEED_SPACES to control which options
448 require spaces between the option and the argument. */
449 #ifndef SWITCHES_NEED_SPACES
450 #define SWITCHES_NEED_SPACES ""
453 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
455 #define ENDFILE_SPEC ""
458 /* This spec is used for telling cpp whether char is signed or not. */
459 #ifndef SIGNED_CHAR_SPEC
460 /* Use #if rather than ?:
461 because MIPS C compiler rejects like ?: in initializers. */
462 #if DEFAULT_SIGNED_CHAR
463 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
465 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
470 #define LINKER_NAME "collect2"
473 static char *cpp_spec
= CPP_SPEC
;
474 static char *cpp_predefines
= CPP_PREDEFINES
;
475 static char *cc1_spec
= CC1_SPEC
;
476 static char *cc1plus_spec
= CC1PLUS_SPEC
;
477 static char *signed_char_spec
= SIGNED_CHAR_SPEC
;
478 static char *asm_spec
= ASM_SPEC
;
479 static char *asm_final_spec
= ASM_FINAL_SPEC
;
480 static char *link_spec
= LINK_SPEC
;
481 static char *lib_spec
= LIB_SPEC
;
482 static char *libgcc_spec
= LIBGCC_SPEC
;
483 static char *endfile_spec
= ENDFILE_SPEC
;
484 static char *startfile_spec
= STARTFILE_SPEC
;
485 static char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
486 static char *linker_name_spec
= LINKER_NAME
;
488 /* Some compilers have limits on line lengths, and the multilib_select
489 and/or multilib_matches strings can be very long, so we build them at
491 static struct obstack multilib_obstack
;
492 static char *multilib_select
;
493 static char *multilib_matches
;
494 static char *multilib_defaults
;
495 #include "multilib.h"
497 /* Check whether a particular argument is a default argument. */
499 #ifndef MULTILIB_DEFAULTS
500 #define MULTILIB_DEFAULTS { "" }
503 static char *multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
506 struct user_specs
*next
;
510 static struct user_specs
*user_specs_head
, *user_specs_tail
;
512 /* This defines which switch letters take arguments. */
514 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
515 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
516 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
517 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
518 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
519 || (CHAR) == 'B' || (CHAR) == 'b')
521 #ifndef SWITCH_TAKES_ARG
522 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
525 /* This defines which multi-letter switches take arguments. */
527 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
528 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
529 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
530 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
531 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
532 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
533 || !strcmp (STR, "isystem") || !strcmp (STR, "specs"))
535 #ifndef WORD_SWITCH_TAKES_ARG
536 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
540 #ifdef HAVE_EXECUTABLE_SUFFIX
541 /* This defines which switches stop a full compilation. */
542 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
543 ((CHAR) == 'c' || (CHAR) == 'S')
545 #ifndef SWITCH_CURTAILS_COMPILATION
546 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
547 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
551 /* Record the mapping from file suffixes for compilation specs. */
555 char *suffix
; /* Use this compiler for input files
556 whose names end in this suffix. */
558 char *spec
[4]; /* To use this compiler, concatenate these
559 specs and pass to do_spec. */
562 /* Pointer to a vector of `struct compiler' that gives the spec for
563 compiling a file, based on its suffix.
564 A file that does not end in any of these suffixes will be passed
565 unchanged to the loader and nothing else will be done to it.
567 An entry containing two 0s is used to terminate the vector.
569 If multiple entries match a file, the last matching one is used. */
571 static struct compiler
*compilers
;
573 /* Number of entries in `compilers', not counting the null terminator. */
575 static int n_compilers
;
577 /* The default list of file name suffixes and their compilation specs. */
579 static struct compiler default_compilers
[] =
581 /* Add lists of suffixes of known languages here. If those languages
582 were not present when we built the driver, we will hit these copies
583 and be given a more meaningful error than "file not used since
584 linking is not done". */
585 {".cc", {"#C++"}}, {".cxx", {"#C++"}}, {".cpp", {"#C++"}}, {".c++", {"#C++"}},
586 {".C", {"#C++"}}, {".ads", {"#Ada"}}, {".adb", {"#Ada"}}, {".ada", {"#Ada"}},
587 {".f", {"#Fortran"}}, {".for", {"#Fortran"}}, {".F", {"#Fortran"}},
588 {".fpp", {"#Fortran"}},
589 {".p", {"#Pascal"}}, {".pas", {"#Pascal"}},
590 /* Next come the entries for C. */
593 {"cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
594 %{C:%{!E:%eGNU C does not support -C without using -E}}\
595 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
596 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
597 %{ansi:-trigraphs -D__STRICT_ANSI__}\
598 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
599 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
600 %{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 %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
622 %{traditional} %{ftraditional:-traditional}\
623 %{traditional-cpp:-traditional}\
624 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
626 %{!E:%e-E required when input is from standard input}"}},
627 {".m", {"@objective-c"}},
629 {"cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
630 %{C:%{!E:%eGNU C does not support -C without using -E}}\
631 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
632 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
633 %{ansi:-trigraphs -D__STRICT_ANSI__}\
634 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
635 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
636 %{traditional} %{ftraditional:-traditional}\
637 %{traditional-cpp:-traditional}\
638 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
639 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
640 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
641 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a*}\
642 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
643 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
644 -lang-objc %{gen-decls} \
646 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
647 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
649 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
650 %{!pipe:%g.s} %A\n }}}}"}},
651 {".h", {"@c-header"}},
653 {"%{!E:%eCompilation of header file requested} \
654 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
655 %{C:%{!E:%eGNU C does not support -C without using -E}}\
656 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
657 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
658 %{ansi:-trigraphs -D__STRICT_ANSI__}\
659 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
660 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
661 %{traditional} %{ftraditional:-traditional}\
662 %{traditional-cpp:-traditional}\
663 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
665 {".i", {"@cpp-output"}},
667 {"%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
668 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
669 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
671 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
672 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
674 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
675 %{!pipe:%g.s} %A\n }}}}"}},
676 {".s", {"@assembler"}},
678 {"%{!M:%{!MM:%{!E:%{!S:as %a %Y\
679 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
681 {".S", {"@assembler-with-cpp"}},
682 {"@assembler-with-cpp",
683 {"cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
684 %{C:%{!E:%eGNU C does not support -C without using -E}}\
685 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
686 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
687 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
688 %{traditional} %{ftraditional:-traditional}\
689 %{traditional-cpp:-traditional}\
690 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
691 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
692 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
693 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
694 %{!pipe:%g.s} %A\n }}}}"}},
696 /* Mark end of table */
700 /* Number of elements in default_compilers, not counting the terminator. */
702 static int n_default_compilers
703 = (sizeof default_compilers
/ sizeof (struct compiler
)) - 1;
705 /* Here is the spec for running the linker, after compiling all files. */
707 /* -u* was put back because both BSD and SysV seem to support it. */
708 /* %{static:} simply prevents an error message if the target machine
709 doesn't handle -static. */
710 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
711 scripts which exist in user specified directories, or in standard
713 #ifdef LINK_LIBGCC_SPECIAL
714 /* Don't generate -L options. */
715 static char *link_command_spec
= "\
717 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
718 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
719 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
721 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
722 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
727 static char *link_command_spec
= "\
729 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
730 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
731 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
732 %{static:} %{L*} %D %o\
733 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
734 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
739 /* A vector of options to give to the linker.
740 These options are accumulated by %x,
741 and substituted into the linker command with %X. */
742 static int n_linker_options
;
743 static char **linker_options
;
745 /* A vector of options to give to the assembler.
746 These options are accumulated by -Wa,
747 and substituted into the assembler command with %Y. */
748 static int n_assembler_options
;
749 static char **assembler_options
;
751 /* A vector of options to give to the preprocessor.
752 These options are accumulated by -Wp,
753 and substituted into the preprocessor command with %Z. */
754 static int n_preprocessor_options
;
755 static char **preprocessor_options
;
757 /* Define how to map long options into short ones. */
759 /* This structure describes one mapping. */
762 /* The long option's name. */
764 /* The equivalent short option. */
766 /* Argument info. A string of flag chars; NULL equals no options.
767 a => argument required.
768 o => argument optional.
769 j => join argument to equivalent, making one word.
770 * => require other text after NAME as an argument. */
774 /* This is the table of mappings. Mappings are tried sequentially
775 for each option encountered; the first one that matches, wins. */
777 struct option_map option_map
[] =
779 {"--all-warnings", "-Wall", 0},
780 {"--ansi", "-ansi", 0},
781 {"--assemble", "-S", 0},
782 {"--assert", "-A", "a"},
783 {"--comments", "-C", 0},
784 {"--compile", "-c", 0},
785 {"--debug", "-g", "oj"},
786 {"--define-macro", "-D", "aj"},
787 {"--dependencies", "-M", 0},
788 {"--dump", "-d", "a"},
789 {"--dumpbase", "-dumpbase", "a"},
790 {"--entry", "-e", 0},
791 {"--extra-warnings", "-W", 0},
792 {"--for-assembler", "-Wa", "a"},
793 {"--for-linker", "-Xlinker", "a"},
794 {"--force-link", "-u", "a"},
795 {"--imacros", "-imacros", "a"},
796 {"--include", "-include", "a"},
797 {"--include-barrier", "-I-", 0},
798 {"--include-directory", "-I", "aj"},
799 {"--include-directory-after", "-idirafter", "a"},
800 {"--include-prefix", "-iprefix", "a"},
801 {"--include-with-prefix", "-iwithprefix", "a"},
802 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
803 {"--include-with-prefix-after", "-iwithprefix", "a"},
804 {"--language", "-x", "a"},
805 {"--library-directory", "-L", "a"},
806 {"--machine", "-m", "aj"},
807 {"--machine-", "-m", "*j"},
808 {"--no-line-commands", "-P", 0},
809 {"--no-precompiled-includes", "-noprecomp", 0},
810 {"--no-standard-includes", "-nostdinc", 0},
811 {"--no-standard-libraries", "-nostdlib", 0},
812 {"--no-warnings", "-w", 0},
813 {"--optimize", "-O", "oj"},
814 {"--output", "-o", "a"},
815 {"--pedantic", "-pedantic", 0},
816 {"--pedantic-errors", "-pedantic-errors", 0},
817 {"--pipe", "-pipe", 0},
818 {"--prefix", "-B", "a"},
819 {"--preprocess", "-E", 0},
820 {"--print-search-dirs", "-print-search-dirs", 0},
821 {"--print-file-name", "-print-file-name=", "aj"},
822 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
823 {"--print-missing-file-dependencies", "-MG", 0},
824 {"--print-multi-lib", "-print-multi-lib", 0},
825 {"--print-multi-directory", "-print-multi-directory", 0},
826 {"--print-prog-name", "-print-prog-name=", "aj"},
827 {"--profile", "-p", 0},
828 {"--profile-blocks", "-a", 0},
829 {"--quiet", "-q", 0},
830 {"--save-temps", "-save-temps", 0},
831 {"--shared", "-shared", 0},
832 {"--silent", "-q", 0},
833 {"--specs", "-specs=", "aj"},
834 {"--static", "-static", 0},
835 {"--symbolic", "-symbolic", 0},
836 {"--target", "-b", "a"},
837 {"--trace-includes", "-H", 0},
838 {"--traditional", "-traditional", 0},
839 {"--traditional-cpp", "-traditional-cpp", 0},
840 {"--trigraphs", "-trigraphs", 0},
841 {"--undefine-macro", "-U", "aj"},
842 {"--use-version", "-V", "a"},
843 {"--user-dependencies", "-MM", 0},
844 {"--verbose", "-v", 0},
845 {"--version", "-dumpversion", 0},
846 {"--warn-", "-W", "*j"},
847 {"--write-dependencies", "-MD", 0},
848 {"--write-user-dependencies", "-MMD", 0},
852 /* Translate the options described by *ARGCP and *ARGVP.
853 Make a new vector and store it back in *ARGVP,
854 and store its length in *ARGVC. */
857 translate_options (argcp
, argvp
)
863 char **argv
= *argvp
;
864 char **newv
= (char **) xmalloc ((argc
+ 2) * 2 * sizeof (char *));
868 newv
[newindex
++] = argv
[i
++];
872 /* Translate -- options. */
873 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
875 /* Find a mapping that applies to this option. */
876 for (j
= 0; j
< sizeof (option_map
) / sizeof (option_map
[0]); j
++)
878 size_t optlen
= strlen (option_map
[j
].name
);
879 size_t arglen
= strlen (argv
[i
]);
880 size_t complen
= arglen
> optlen
? optlen
: arglen
;
881 char *arginfo
= option_map
[j
].arg_info
;
886 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
893 k
< sizeof (option_map
) / sizeof (option_map
[0]);
895 if (strlen (option_map
[k
].name
) >= arglen
896 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
898 error ("Ambiguous abbreviation %s", argv
[i
]);
902 if (k
!= sizeof (option_map
) / sizeof (option_map
[0]))
908 /* If the option has an argument, accept that. */
909 if (argv
[i
][optlen
] == '=')
910 arg
= argv
[i
] + optlen
+ 1;
912 /* If this mapping requires extra text at end of name,
913 accept that as "argument". */
914 else if (index (arginfo
, '*') != 0)
915 arg
= argv
[i
] + optlen
;
917 /* Otherwise, extra text at end means mismatch.
918 Try other mappings. */
923 else if (index (arginfo
, '*') != 0)
925 error ("Incomplete `%s' option", option_map
[j
].name
);
929 /* Handle arguments. */
930 if (index (arginfo
, 'a') != 0)
936 error ("Missing argument to `%s' option",
944 else if (index (arginfo
, '*') != 0)
946 else if (index (arginfo
, 'o') == 0)
949 error ("Extraneous argument to `%s' option",
954 /* Store the translation as one argv elt or as two. */
955 if (arg
!= 0 && index (arginfo
, 'j') != 0)
956 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
960 newv
[newindex
++] = option_map
[j
].equivalent
;
961 newv
[newindex
++] = arg
;
964 newv
[newindex
++] = option_map
[j
].equivalent
;
972 /* Handle old-fashioned options--just copy them through,
973 with their arguments. */
974 else if (argv
[i
][0] == '-')
976 char *p
= argv
[i
] + 1;
980 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
981 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
982 else if (WORD_SWITCH_TAKES_ARG (p
))
983 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
984 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
987 else if (! strcmp (p
, "Xlinker"))
990 /* Watch out for an option at the end of the command line that
991 is missing arguments, and avoid skipping past the end of the
993 if (nskip
+ i
> argc
)
998 newv
[newindex
++] = argv
[i
++];
1003 /* Ordinary operands, or +e options. */
1004 newv
[newindex
++] = argv
[i
++];
1017 #ifdef HAVE_STRERROR
1023 static char buffer
[30];
1025 return "cannot access";
1027 if (e
> 0 && e
< sys_nerr
)
1028 return sys_errlist
[e
];
1030 sprintf (buffer
, "Unknown error %d", e
);
1041 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1042 be considered whitespace. */
1043 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1045 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1049 while (*p
!= '\n') p
++;
1059 /* Structure to keep track of the specs that have been defined so far.
1060 These are accessed using %(specname) or %[specname] in a compiler
1065 /* The following 2 fields must be first */
1066 /* to allow EXTRA_SPECS to be initialized */
1067 char *name
; /* name of the spec. */
1068 char *ptr
; /* available ptr if no static pointer */
1070 /* The following fields are not initialized */
1071 /* by EXTRA_SPECS */
1072 char **ptr_spec
; /* pointer to the spec itself. */
1073 struct spec_list
*next
; /* Next spec in linked list. */
1074 int name_len
; /* length of the name */
1075 int alloc_p
; /* whether string was allocated */
1078 #define INIT_STATIC_SPEC(NAME,PTR) \
1079 { NAME, NULL_PTR, PTR, (struct spec_list *)0, sizeof (NAME)-1, 0 }
1081 /* List of statically defined specs */
1082 static struct spec_list static_specs
[] = {
1083 INIT_STATIC_SPEC ("asm", &asm_spec
),
1084 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1085 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1086 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1087 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1088 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1089 INIT_STATIC_SPEC ("link", &link_spec
),
1090 INIT_STATIC_SPEC ("lib", &lib_spec
),
1091 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1092 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1093 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1094 INIT_STATIC_SPEC ("signed_char", &signed_char_spec
),
1095 INIT_STATIC_SPEC ("predefines", &cpp_predefines
),
1096 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1097 INIT_STATIC_SPEC ("version", &compiler_version
),
1098 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1099 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1100 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1101 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1102 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1105 #ifdef EXTRA_SPECS /* additional specs needed */
1106 static struct spec_list extra_specs
[] = { EXTRA_SPECS
};
1109 /* List of dynamically allocates specs that have been defined so far. */
1111 static struct spec_list
*specs
= (struct spec_list
*)0;
1114 /* Initialize the specs lookup routines. */
1119 struct spec_list
*next
= (struct spec_list
*)0;
1120 struct spec_list
*sl
= (struct spec_list
*)0;
1124 return; /* already initialized */
1127 fprintf (stderr
, "Using builtin specs.\n");
1130 for (i
= (sizeof (extra_specs
) / sizeof (extra_specs
[0])) - 1; i
>= 0; i
--)
1132 sl
= &extra_specs
[i
];
1134 sl
->name_len
= strlen (sl
->name
);
1135 sl
->ptr_spec
= &sl
->ptr
;
1140 for (i
= (sizeof (static_specs
) / sizeof (static_specs
[0])) - 1; i
>= 0; i
--)
1142 sl
= &static_specs
[i
];
1151 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1152 removed; If the spec starts with a + then SPEC is added to the end of the
1156 set_spec (name
, spec
)
1160 struct spec_list
*sl
;
1162 int name_len
= strlen (name
);
1165 /* If this is the first call, initialize the statically allocated specs */
1168 struct spec_list
*next
= (struct spec_list
*)0;
1169 for (i
= (sizeof (static_specs
) / sizeof (static_specs
[0])) - 1;
1172 sl
= &static_specs
[i
];
1179 /* See if the spec already exists */
1180 for (sl
= specs
; sl
; sl
= sl
->next
)
1181 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1186 /* Not found - make it */
1187 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1188 sl
->name
= save_string (name
, strlen (name
));
1189 sl
->name_len
= name_len
;
1190 sl
->ptr_spec
= &sl
->ptr
;
1192 *(sl
->ptr_spec
) = "";
1197 old_spec
= *(sl
->ptr_spec
);
1198 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE (spec
[1]))
1199 ? concat (old_spec
, spec
+ 1, NULL_PTR
)
1200 : save_string (spec
, strlen (spec
)));
1204 fprintf (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1207 /* Free the old spec */
1208 if (old_spec
&& sl
->alloc_p
)
1214 /* Accumulate a command (program name and args), and run it. */
1216 /* Vector of pointers to arguments in the current line of specifications. */
1218 static char **argbuf
;
1220 /* Number of elements allocated in argbuf. */
1222 static int argbuf_length
;
1224 /* Number of elements in argbuf currently in use (containing args). */
1226 static int argbuf_index
;
1228 #ifdef MKTEMP_EACH_FILE
1229 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1232 static struct temp_name
{
1233 char *suffix
; /* suffix associated with the code. */
1234 int length
; /* strlen (suffix). */
1235 int unique
; /* Indicates whether %g or %u/%U was used. */
1236 char *filename
; /* associated filename. */
1237 int filename_length
; /* strlen (filename). */
1238 struct temp_name
*next
;
1242 /* Number of commands executed so far. */
1244 static int execution_count
;
1246 /* Number of commands that exited with a signal. */
1248 static int signal_count
;
1250 /* Name with which this program was invoked. */
1252 static char *programname
;
1254 /* Structures to keep track of prefixes to try when looking for files. */
1258 char *prefix
; /* String to prepend to the path. */
1259 struct prefix_list
*next
; /* Next in linked list. */
1260 int require_machine_suffix
; /* Don't use without machine_suffix. */
1261 /* 2 means try both machine_suffix and just_machine_suffix. */
1262 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1267 struct prefix_list
*plist
; /* List of prefixes to try */
1268 int max_len
; /* Max length of a prefix in PLIST */
1269 char *name
; /* Name of this list (used in config stuff) */
1272 /* List of prefixes to try when looking for executables. */
1274 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1276 /* List of prefixes to try when looking for startup (crt0) files. */
1278 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1280 /* List of prefixes to try when looking for include files. */
1282 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1284 /* Suffix to attach to directories searched for commands.
1285 This looks like `MACHINE/VERSION/'. */
1287 static char *machine_suffix
= 0;
1289 /* Suffix to attach to directories searched for commands.
1290 This is just `MACHINE/'. */
1292 static char *just_machine_suffix
= 0;
1294 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1296 static char *gcc_exec_prefix
;
1298 /* Default prefixes to attach to command names. */
1300 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1301 #undef MD_EXEC_PREFIX
1302 #undef MD_STARTFILE_PREFIX
1303 #undef MD_STARTFILE_PREFIX_1
1306 #ifndef STANDARD_EXEC_PREFIX
1307 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1308 #endif /* !defined STANDARD_EXEC_PREFIX */
1310 static char *standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1311 static char *standard_exec_prefix_1
= "/usr/lib/gcc/";
1312 #ifdef MD_EXEC_PREFIX
1313 static char *md_exec_prefix
= MD_EXEC_PREFIX
;
1316 #ifndef STANDARD_STARTFILE_PREFIX
1317 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1318 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1320 #ifdef MD_STARTFILE_PREFIX
1321 static char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1323 #ifdef MD_STARTFILE_PREFIX_1
1324 static char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1326 static char *standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1327 static char *standard_startfile_prefix_1
= "/lib/";
1328 static char *standard_startfile_prefix_2
= "/usr/lib/";
1330 #ifndef TOOLDIR_BASE_PREFIX
1331 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1333 static char *tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1334 static char *tooldir_prefix
;
1336 /* Subdirectory to use for locating libraries. Set by
1337 set_multilib_dir based on the compilation options. */
1339 static char *multilib_dir
;
1341 /* Clear out the vector of arguments (after a command is executed). */
1349 /* Add one argument to the vector at the end.
1350 This is done when a space is seen or at the end of the line.
1351 If DELETE_ALWAYS is nonzero, the arg is a filename
1352 and the file should be deleted eventually.
1353 If DELETE_FAILURE is nonzero, the arg is a filename
1354 and the file should be deleted if this compilation fails. */
1357 store_arg (arg
, delete_always
, delete_failure
)
1359 int delete_always
, delete_failure
;
1361 if (argbuf_index
+ 1 == argbuf_length
)
1363 = (char **) xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (char *));
1365 argbuf
[argbuf_index
++] = arg
;
1366 argbuf
[argbuf_index
] = 0;
1368 if (delete_always
|| delete_failure
)
1369 record_temp_file (arg
, delete_always
, delete_failure
);
1372 /* Read compilation specs from a file named FILENAME,
1373 replacing the default ones.
1375 A suffix which starts with `*' is a definition for
1376 one of the machine-specific sub-specs. The "suffix" should be
1377 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1378 The corresponding spec is stored in asm_spec, etc.,
1379 rather than in the `compilers' vector.
1381 Anything invalid in the file is a fatal error. */
1384 read_specs (filename
, main_p
)
1390 struct stat statbuf
;
1395 fprintf (stderr
, "Reading specs from %s\n", filename
);
1397 /* Open and stat the file. */
1398 desc
= open (filename
, O_RDONLY
, 0);
1400 pfatal_with_name (filename
);
1401 if (stat (filename
, &statbuf
) < 0)
1402 pfatal_with_name (filename
);
1404 /* Read contents of file into BUFFER. */
1405 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1406 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1408 pfatal_with_name (filename
);
1409 buffer
[readlen
] = 0;
1412 /* Scan BUFFER for specs, putting them in the vector. */
1418 char *in
, *out
, *p1
, *p2
, *p3
;
1420 /* Advance P in BUFFER to the next nonblank nocomment line. */
1421 p
= skip_whitespace (p
);
1425 /* Is this a special command that starts with '%'? */
1426 /* Don't allow this for the main specs file, since it would
1427 encourage people to overwrite it. */
1428 if (*p
== '%' && !main_p
)
1431 while (*p
&& *p
!= '\n')
1434 p
++; /* Skip '\n' */
1436 if (!strncmp (p1
, "%include", sizeof ("%include")-1)
1437 && (p1
[sizeof "%include" - 1] == ' '
1438 || p1
[sizeof "%include" - 1] == '\t'))
1442 p1
+= sizeof ("%include");
1443 while (*p1
== ' ' || *p1
== '\t')
1446 if (*p1
++ != '<' || p
[-2] != '>')
1447 fatal ("specs %%include syntax malformed after %d characters",
1451 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1452 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1455 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1456 && (p1
[sizeof "%include_noerr" - 1] == ' '
1457 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1461 p1
+= sizeof "%include_noerr";
1462 while (*p1
== ' ' || *p1
== '\t') p1
++;
1464 if (*p1
++ != '<' || p
[-2] != '>')
1465 fatal ("specs %%include syntax malformed after %d characters",
1469 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1471 read_specs (new_filename
, FALSE
);
1472 else if (verbose_flag
)
1473 fprintf (stderr
, "Could not find specs file %s\n", p1
);
1476 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1477 && (p1
[sizeof "%rename" - 1] == ' '
1478 || p1
[sizeof "%rename" - 1] == '\t'))
1481 struct spec_list
*sl
;
1483 /* Get original name */
1484 p1
+= sizeof "%rename";
1485 while (*p1
== ' ' || *p1
== '\t')
1488 if (! ISALPHA (*p1
))
1489 fatal ("specs %%rename syntax malformed after %d characters",
1493 while (*p2
&& !ISSPACE (*p2
))
1496 if (*p2
!= ' ' && *p2
!= '\t')
1497 fatal ("specs %%rename syntax malformed after %d characters",
1502 while (*p2
== ' ' || *p2
== '\t')
1505 if (! ISALPHA (*p2
))
1506 fatal ("specs %%rename syntax malformed after %d characters",
1509 /* Get new spec name */
1511 while (*p3
&& !ISSPACE (*p3
))
1515 fatal ("specs %%rename syntax malformed after %d characters",
1519 for (sl
= specs
; sl
; sl
= sl
->next
)
1520 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1524 fatal ("specs %s spec was not found to be renamed", p1
);
1526 if (strcmp (p1
, p2
) == 0)
1531 fprintf (stderr
, "rename spec %s to %s\n", p1
, p2
);
1533 fprintf (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
1537 set_spec (p2
, *(sl
->ptr_spec
));
1539 free (*(sl
->ptr_spec
));
1541 *(sl
->ptr_spec
) = "";
1546 fatal ("specs unknown %% command after %d characters",
1550 /* Find the colon that should end the suffix. */
1552 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1555 /* The colon shouldn't be missing. */
1557 fatal ("specs file malformed after %d characters", p1
- buffer
);
1559 /* Skip back over trailing whitespace. */
1561 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1564 /* Copy the suffix to a string. */
1565 suffix
= save_string (p
, p2
- p
);
1566 /* Find the next line. */
1567 p
= skip_whitespace (p1
+ 1);
1569 fatal ("specs file malformed after %d characters", p
- buffer
);
1572 /* Find next blank line or end of string. */
1573 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1576 /* Specs end at the blank line and do not include the newline. */
1577 spec
= save_string (p
, p1
- p
);
1580 /* Delete backslash-newline sequences from the spec. */
1585 if (in
[0] == '\\' && in
[1] == '\n')
1587 else if (in
[0] == '#')
1588 while (*in
&& *in
!= '\n')
1596 if (suffix
[0] == '*')
1598 if (! strcmp (suffix
, "*link_command"))
1599 link_command_spec
= spec
;
1601 set_spec (suffix
+ 1, spec
);
1605 /* Add this pair to the vector. */
1607 = ((struct compiler
*)
1608 xrealloc (compilers
,
1609 (n_compilers
+ 2) * sizeof (struct compiler
)));
1611 compilers
[n_compilers
].suffix
= suffix
;
1612 bzero ((char *) compilers
[n_compilers
].spec
,
1613 sizeof compilers
[n_compilers
].spec
);
1614 compilers
[n_compilers
].spec
[0] = spec
;
1616 bzero ((char *) &compilers
[n_compilers
],
1617 sizeof compilers
[n_compilers
]);
1621 link_command_spec
= spec
;
1624 if (link_command_spec
== 0)
1625 fatal ("spec file has no spec for linking");
1628 /* Record the names of temporary files we tell compilers to write,
1629 and delete them at the end of the run. */
1631 /* This is the common prefix we use to make temp file names.
1632 It is chosen once for each run of this program.
1633 It is substituted into a spec by %g.
1634 Thus, all temp file names contain this prefix.
1635 In practice, all temp file names start with this prefix.
1637 This prefix comes from the envvar TMPDIR if it is defined;
1638 otherwise, from the P_tmpdir macro if that is defined;
1639 otherwise, in /usr/tmp or /tmp;
1640 or finally the current directory if all else fails. */
1642 static char *temp_filename
;
1644 /* Length of the prefix. */
1646 static int temp_filename_length
;
1648 /* Define the list of temporary files to delete. */
1653 struct temp_file
*next
;
1656 /* Queue of files to delete on success or failure of compilation. */
1657 static struct temp_file
*always_delete_queue
;
1658 /* Queue of files to delete on failure of compilation. */
1659 static struct temp_file
*failure_delete_queue
;
1661 /* Record FILENAME as a file to be deleted automatically.
1662 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1663 otherwise delete it in any case.
1664 FAIL_DELETE nonzero means delete it if a compilation step fails;
1665 otherwise delete it in any case. */
1668 record_temp_file (filename
, always_delete
, fail_delete
)
1673 register char *name
;
1674 name
= xmalloc (strlen (filename
) + 1);
1675 strcpy (name
, filename
);
1679 register struct temp_file
*temp
;
1680 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1681 if (! strcmp (name
, temp
->name
))
1684 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1685 temp
->next
= always_delete_queue
;
1687 always_delete_queue
= temp
;
1694 register struct temp_file
*temp
;
1695 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1696 if (! strcmp (name
, temp
->name
))
1699 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1700 temp
->next
= failure_delete_queue
;
1702 failure_delete_queue
= temp
;
1708 /* Delete all the temporary files whose names we previously recorded. */
1711 delete_if_ordinary (name
)
1718 printf ("Delete %s? (y or n) ", name
);
1722 while ((c
= getchar ()) != '\n' && c
!= EOF
)
1725 if (i
== 'y' || i
== 'Y')
1727 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
1728 if (unlink (name
) < 0)
1730 perror_with_name (name
);
1734 delete_temp_files ()
1736 register struct temp_file
*temp
;
1738 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1739 delete_if_ordinary (temp
->name
);
1740 always_delete_queue
= 0;
1743 /* Delete all the files to be deleted on error. */
1746 delete_failure_queue ()
1748 register struct temp_file
*temp
;
1750 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1751 delete_if_ordinary (temp
->name
);
1755 clear_failure_queue ()
1757 failure_delete_queue
= 0;
1760 /* Routine to add variables to the environment. We do this to pass
1761 the pathname of the gcc driver, and the directories search to the
1762 collect2 program, which is being run as ld. This way, we can be
1763 sure of executing the right compiler when collect2 wants to build
1764 constructors and destructors. Since the environment variables we
1765 use come from an obstack, we don't have to worry about allocating
1774 #ifndef VMS /* nor about VMS */
1776 extern char **environ
;
1777 char **old_environ
= environ
;
1781 int str_len
= strlen (str
);
1785 while ((ch
= *p
++) != '\0' && ch
!= '=')
1791 /* Search for replacing an existing environment variable, and
1792 count the number of total environment variables. */
1793 for (envp
= old_environ
; *envp
; envp
++)
1796 if (!strncmp (str
, *envp
, name_len
))
1803 /* Add a new environment variable */
1804 environ
= (char **) xmalloc (sizeof (char *) * (num_envs
+2));
1806 bcopy ((char *) old_environ
, (char *) (environ
+ 1),
1807 sizeof (char *) * (num_envs
+1));
1812 #endif /* HAVE_PUTENV */
1815 /* Build a list of search directories from PATHS.
1816 PREFIX is a string to prepend to the list.
1817 If CHECK_DIR_P is non-zero we ensure the directory exists.
1818 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1819 It is also used by the --print-search-dirs flag. */
1822 build_search_list (paths
, prefix
, check_dir_p
)
1823 struct path_prefix
*paths
;
1827 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
1829 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
1830 int first_time
= TRUE
;
1831 struct prefix_list
*pprefix
;
1833 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
1835 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
1837 int len
= strlen (pprefix
->prefix
);
1841 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
1844 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1847 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1848 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
1851 if (just_machine_suffix
1852 && pprefix
->require_machine_suffix
== 2
1854 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
1857 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1860 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1861 obstack_grow (&collect_obstack
, just_machine_suffix
,
1865 if (! pprefix
->require_machine_suffix
)
1868 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1871 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1875 obstack_1grow (&collect_obstack
, '\0');
1876 return obstack_finish (&collect_obstack
);
1879 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1883 putenv_from_prefixes (paths
, env_var
)
1884 struct path_prefix
*paths
;
1887 putenv (build_search_list (paths
, env_var
, 1));
1890 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1891 access to check permissions.
1892 Return 0 if not found, otherwise return its name, allocated with malloc. */
1895 find_a_file (pprefix
, name
, mode
)
1896 struct path_prefix
*pprefix
;
1901 char *file_suffix
= ((mode
& X_OK
) != 0 ? EXECUTABLE_SUFFIX
: "");
1902 struct prefix_list
*pl
;
1903 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
1906 len
+= strlen (machine_suffix
);
1908 temp
= xmalloc (len
);
1910 /* Determine the filename to execute (special case for absolute paths). */
1912 if (*name
== '/' || *name
== DIR_SEPARATOR
1913 /* Check for disk name on MS-DOS-based systems. */
1914 || (DIR_SEPARATOR
== '\\' && name
[1] == ':'
1915 && (name
[2] == DIR_SEPARATOR
|| name
[2] == '/')))
1917 if (access (name
, mode
))
1919 strcpy (temp
, name
);
1924 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
1928 /* Some systems have a suffix for executable files.
1929 So try appending that first. */
1930 if (file_suffix
[0] != 0)
1932 strcpy (temp
, pl
->prefix
);
1933 strcat (temp
, machine_suffix
);
1934 strcat (temp
, name
);
1935 strcat (temp
, file_suffix
);
1936 if (access (temp
, mode
) == 0)
1938 if (pl
->used_flag_ptr
!= 0)
1939 *pl
->used_flag_ptr
= 1;
1944 /* Now try just the name. */
1945 strcpy (temp
, pl
->prefix
);
1946 strcat (temp
, machine_suffix
);
1947 strcat (temp
, name
);
1948 if (access (temp
, mode
) == 0)
1950 if (pl
->used_flag_ptr
!= 0)
1951 *pl
->used_flag_ptr
= 1;
1956 /* Certain prefixes are tried with just the machine type,
1957 not the version. This is used for finding as, ld, etc. */
1958 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
1960 /* Some systems have a suffix for executable files.
1961 So try appending that first. */
1962 if (file_suffix
[0] != 0)
1964 strcpy (temp
, pl
->prefix
);
1965 strcat (temp
, just_machine_suffix
);
1966 strcat (temp
, name
);
1967 strcat (temp
, file_suffix
);
1968 if (access (temp
, mode
) == 0)
1970 if (pl
->used_flag_ptr
!= 0)
1971 *pl
->used_flag_ptr
= 1;
1976 strcpy (temp
, pl
->prefix
);
1977 strcat (temp
, just_machine_suffix
);
1978 strcat (temp
, name
);
1979 if (access (temp
, mode
) == 0)
1981 if (pl
->used_flag_ptr
!= 0)
1982 *pl
->used_flag_ptr
= 1;
1987 /* Certain prefixes can't be used without the machine suffix
1988 when the machine or version is explicitly specified. */
1989 if (! pl
->require_machine_suffix
)
1991 /* Some systems have a suffix for executable files.
1992 So try appending that first. */
1993 if (file_suffix
[0] != 0)
1995 strcpy (temp
, pl
->prefix
);
1996 strcat (temp
, name
);
1997 strcat (temp
, file_suffix
);
1998 if (access (temp
, mode
) == 0)
2000 if (pl
->used_flag_ptr
!= 0)
2001 *pl
->used_flag_ptr
= 1;
2006 strcpy (temp
, pl
->prefix
);
2007 strcat (temp
, name
);
2008 if (access (temp
, mode
) == 0)
2010 if (pl
->used_flag_ptr
!= 0)
2011 *pl
->used_flag_ptr
= 1;
2021 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
2022 at the start of the list, otherwise it goes at the end.
2024 If WARN is nonzero, we will warn if no file is found
2025 through this prefix. WARN should point to an int
2026 which will be set to 1 if this entry is used.
2028 COMPONENT is the value to be passed to update_path.
2030 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2031 the complete value of machine_suffix.
2032 2 means try both machine_suffix and just_machine_suffix. */
2035 add_prefix (pprefix
, prefix
, component
, first
, require_machine_suffix
, warn
)
2036 struct path_prefix
*pprefix
;
2040 int require_machine_suffix
;
2043 struct prefix_list
*pl
, **prev
;
2046 if (! first
&& pprefix
->plist
)
2048 for (pl
= pprefix
->plist
; pl
->next
; pl
= pl
->next
)
2053 prev
= &pprefix
->plist
;
2055 /* Keep track of the longest prefix */
2057 prefix
= update_path (prefix
, component
);
2058 len
= strlen (prefix
);
2059 if (len
> pprefix
->max_len
)
2060 pprefix
->max_len
= len
;
2062 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
2063 pl
->prefix
= save_string (prefix
, len
);
2064 pl
->require_machine_suffix
= require_machine_suffix
;
2065 pl
->used_flag_ptr
= warn
;
2072 pl
->next
= (struct prefix_list
*) 0;
2076 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
2079 unused_prefix_warnings (pprefix
)
2080 struct path_prefix
*pprefix
;
2082 struct prefix_list
*pl
= pprefix
->plist
;
2086 if (pl
->used_flag_ptr
!= 0 && !*pl
->used_flag_ptr
)
2088 if (pl
->require_machine_suffix
&& machine_suffix
)
2089 error ("file path prefix `%s%s' never used", pl
->prefix
,
2092 error ("file path prefix `%s' never used", pl
->prefix
);
2094 /* Prevent duplicate warnings. */
2095 *pl
->used_flag_ptr
= 1;
2103 /* Execute the command specified by the arguments on the current line of spec.
2104 When using pipes, this includes several piped-together commands
2105 with `|' between them.
2107 Return 0 if successful, -1 if failed. */
2113 int n_commands
; /* # of command. */
2117 char *prog
; /* program name. */
2118 char **argv
; /* vector of args. */
2119 int pid
; /* pid of process for this command. */
2122 struct command
*commands
; /* each command buffer with above info. */
2124 /* Count # of piped commands. */
2125 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2126 if (strcmp (argbuf
[i
], "|") == 0)
2129 /* Get storage for each command. */
2131 = (struct command
*) alloca (n_commands
* sizeof (struct command
));
2133 /* Split argbuf into its separate piped processes,
2134 and record info about each one.
2135 Also search for the programs that are to be run. */
2137 commands
[0].prog
= argbuf
[0]; /* first command. */
2138 commands
[0].argv
= &argbuf
[0];
2139 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2142 commands
[0].argv
[0] = string
;
2144 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2145 if (strcmp (argbuf
[i
], "|") == 0)
2146 { /* each command. */
2147 #if defined (__MSDOS__) || (defined (_WIN32) && defined (__CYGWIN32_)) || defined (OS2) || defined (VMS)
2148 fatal ("-pipe not supported");
2150 argbuf
[i
] = 0; /* termination of command args. */
2151 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2152 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2153 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2155 commands
[n_commands
].argv
[0] = string
;
2159 argbuf
[argbuf_index
] = 0;
2161 /* If -v, print what we are about to do, and maybe query. */
2165 /* Print each piped command as a separate line. */
2166 for (i
= 0; i
< n_commands
; i
++)
2170 for (j
= commands
[i
].argv
; *j
; j
++)
2171 fprintf (stderr
, " %s", *j
);
2173 /* Print a pipe symbol after all but the last command. */
2174 if (i
+ 1 != n_commands
)
2175 fprintf (stderr
, " |");
2176 fprintf (stderr
, "\n");
2180 fprintf (stderr
, "\nGo ahead? (y or n) ");
2184 while (getchar () != '\n')
2187 if (i
!= 'y' && i
!= 'Y')
2192 /* Run each piped subprocess. */
2194 for (i
= 0; i
< n_commands
; i
++)
2196 char *errmsg_fmt
, *errmsg_arg
;
2197 char *string
= commands
[i
].argv
[0];
2199 commands
[i
].pid
= pexecute (string
, commands
[i
].argv
,
2200 programname
, temp_filename
,
2201 &errmsg_fmt
, &errmsg_arg
,
2202 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2203 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2204 | (string
== commands
[i
].prog
2205 ? PEXECUTE_SEARCH
: 0)
2206 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2208 if (commands
[i
].pid
== -1)
2209 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2211 if (string
!= commands
[i
].prog
)
2217 /* Wait for all the subprocesses to finish.
2218 We don't care what order they finish in;
2219 we know that N_COMMANDS waits will get them all.
2220 Ignore subprocesses that we don't know about,
2221 since they can be spawned by the process that exec'ed us. */
2226 for (i
= 0; i
< n_commands
; )
2232 pid
= pwait (commands
[i
].pid
, &status
, 0);
2236 for (j
= 0; j
< n_commands
; j
++)
2237 if (commands
[j
].pid
== pid
)
2242 if (WIFSIGNALED (status
))
2244 fatal ("Internal compiler error: program %s got fatal signal %d",
2245 commands
[j
].prog
, WTERMSIG (status
));
2249 else if (WIFEXITED (status
)
2250 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2260 /* Find all the switches given to us
2261 and make a vector describing them.
2262 The elements of the vector are strings, one per switch given.
2263 If a switch uses following arguments, then the `part1' field
2264 is the switch itself and the `args' field
2265 is a null-terminated vector containing the following arguments.
2266 The `live_cond' field is 1 if the switch is true in a conditional spec,
2267 -1 if false (overridden by a later switch), and is initialized to zero.
2268 The `valid' field is nonzero if any spec has looked at this switch;
2269 if it remains zero at the end of the run, it must be meaningless. */
2279 static struct switchstr
*switches
;
2281 static int n_switches
;
2289 /* Also a vector of input files specified. */
2291 static struct infile
*infiles
;
2293 static int n_infiles
;
2295 /* This counts the number of libraries added by LANG_SPECIFIC_DRIVER, so that
2296 we can tell if there were any user supplied any files or libraries. */
2298 static int added_libraries
;
2300 /* And a vector of corresponding output files is made up later. */
2302 static char **outfiles
;
2304 /* Used to track if none of the -B paths are used. */
2307 /* Used to track if standard path isn't used and -b or -V is specified. */
2308 static int warn_std
;
2310 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2311 static int *warn_std_ptr
= 0;
2314 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2316 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2317 is true if we should look for an executable suffix as well. */
2320 convert_filename (name
, do_exe
)
2325 int len
= strlen (name
);
2327 #ifdef HAVE_OBJECT_SUFFIX
2328 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2330 && name
[len
- 2] == '.'
2331 && name
[len
- 1] == 'o')
2333 obstack_grow (&obstack
, name
, len
- 2);
2334 obstack_grow0 (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
2335 name
= obstack_finish (&obstack
);
2339 #ifdef HAVE_EXECUTABLE_SUFFIX
2340 /* If there is no filetype, make it the executable suffix (which includes
2341 the "."). But don't get confused if we have just "-o". */
2342 if (! do_exe
|| EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2345 for (i
= len
- 1; i
>= 0; i
--)
2346 if (name
[i
] == '/' || name
[i
] == DIR_SEPARATOR
)
2349 for (i
++; i
< len
; i
++)
2353 obstack_grow (&obstack
, name
, len
);
2354 obstack_grow0 (&obstack
, EXECUTABLE_SUFFIX
, strlen (EXECUTABLE_SUFFIX
));
2355 name
= obstack_finish (&obstack
);
2362 /* Create the vector `switches' and its contents.
2363 Store its length in `n_switches'. */
2366 process_command (argc
, argv
)
2372 char *spec_lang
= 0;
2373 int last_language_n_infiles
;
2376 int lang_n_infiles
= 0;
2378 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
2382 added_libraries
= 0;
2384 /* Figure compiler version from version string. */
2386 compiler_version
= save_string (version_string
, strlen (version_string
));
2387 for (temp
= compiler_version
; *temp
; ++temp
)
2396 /* Set up the default search paths. */
2398 if (gcc_exec_prefix
)
2400 int len
= strlen (gcc_exec_prefix
);
2401 if (len
> sizeof ("/lib/gcc-lib/")-1
2402 && (gcc_exec_prefix
[len
-1] == '/'
2403 || gcc_exec_prefix
[len
-1] == DIR_SEPARATOR
))
2405 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc-lib/") + 1;
2406 if ((*temp
== '/' || *temp
== DIR_SEPARATOR
)
2407 && strncmp (temp
+1, "lib", 3) == 0
2408 && (temp
[4] == '/' || temp
[4] == DIR_SEPARATOR
)
2409 && strncmp (temp
+5, "gcc-lib", 7) == 0)
2410 len
-= sizeof ("/lib/gcc-lib/") - 1;
2413 set_std_prefix (gcc_exec_prefix
, len
);
2414 add_prefix (&exec_prefixes
, gcc_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
2415 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
2418 /* COMPILER_PATH and LIBRARY_PATH have values
2419 that are lists of directory names with colons. */
2421 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
2424 char *startp
, *endp
;
2425 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2427 startp
= endp
= temp
;
2430 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2432 strncpy (nstore
, startp
, endp
-startp
);
2434 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2435 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2437 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2438 nstore
[endp
-startp
+1] = 0;
2441 nstore
[endp
-startp
] = 0;
2442 add_prefix (&exec_prefixes
, nstore
, 0, 0, 0, NULL_PTR
);
2443 add_prefix (&include_prefixes
,
2444 concat (nstore
, "include", NULL_PTR
),
2448 endp
= startp
= endp
+ 1;
2455 GET_ENVIRONMENT (temp
, "LIBRARY_PATH");
2456 if (temp
&& *cross_compile
== '0')
2458 char *startp
, *endp
;
2459 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2461 startp
= endp
= temp
;
2464 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2466 strncpy (nstore
, startp
, endp
-startp
);
2468 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2469 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2471 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2472 nstore
[endp
-startp
+1] = 0;
2475 nstore
[endp
-startp
] = 0;
2476 add_prefix (&startfile_prefixes
, nstore
, NULL_PTR
,
2480 endp
= startp
= endp
+ 1;
2487 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2488 GET_ENVIRONMENT (temp
, "LPATH");
2489 if (temp
&& *cross_compile
== '0')
2491 char *startp
, *endp
;
2492 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2494 startp
= endp
= temp
;
2497 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2499 strncpy (nstore
, startp
, endp
-startp
);
2501 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2502 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2504 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2505 nstore
[endp
-startp
+1] = 0;
2508 nstore
[endp
-startp
] = 0;
2509 add_prefix (&startfile_prefixes
, nstore
, NULL_PTR
,
2513 endp
= startp
= endp
+ 1;
2520 /* Convert new-style -- options to old-style. */
2521 translate_options (&argc
, &argv
);
2523 #ifdef LANG_SPECIFIC_DRIVER
2524 /* Do language-specific adjustment/addition of flags. */
2525 lang_specific_driver (fatal
, &argc
, &argv
, &added_libraries
);
2528 /* Scan argv twice. Here, the first time, just count how many switches
2529 there will be in their vector, and how many input files in theirs.
2530 Here we also parse the switches that cc itself uses (e.g. -v). */
2532 for (i
= 1; i
< argc
; i
++)
2534 if (! strcmp (argv
[i
], "-dumpspecs"))
2536 struct spec_list
*sl
;
2538 for (sl
= specs
; sl
; sl
= sl
->next
)
2539 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
2542 else if (! strcmp (argv
[i
], "-dumpversion"))
2544 printf ("%s\n", spec_version
);
2547 else if (! strcmp (argv
[i
], "-dumpmachine"))
2549 printf ("%s\n", spec_machine
);
2552 else if (! strcmp (argv
[i
], "-print-search-dirs"))
2553 print_search_dirs
= 1;
2554 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2555 print_file_name
= "libgcc.a";
2556 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2557 print_file_name
= argv
[i
] + 17;
2558 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2559 print_prog_name
= argv
[i
] + 17;
2560 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2561 print_multi_lib
= 1;
2562 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2563 print_multi_directory
= 1;
2564 else if (! strncmp (argv
[i
], "-Wa,", 4))
2567 /* Pass the rest of this option to the assembler. */
2569 n_assembler_options
++;
2570 if (!assembler_options
)
2572 = (char **) xmalloc (n_assembler_options
* sizeof (char **));
2575 = (char **) xrealloc (assembler_options
,
2576 n_assembler_options
* sizeof (char **));
2578 /* Split the argument at commas. */
2580 for (j
= 4; argv
[i
][j
]; j
++)
2581 if (argv
[i
][j
] == ',')
2583 assembler_options
[n_assembler_options
- 1]
2584 = save_string (argv
[i
] + prev
, j
- prev
);
2585 n_assembler_options
++;
2587 = (char **) xrealloc (assembler_options
,
2588 n_assembler_options
* sizeof (char **));
2591 /* Record the part after the last comma. */
2592 assembler_options
[n_assembler_options
- 1] = argv
[i
] + prev
;
2594 else if (! strncmp (argv
[i
], "-Wp,", 4))
2597 /* Pass the rest of this option to the preprocessor. */
2599 n_preprocessor_options
++;
2600 if (!preprocessor_options
)
2601 preprocessor_options
2602 = (char **) xmalloc (n_preprocessor_options
* sizeof (char **));
2604 preprocessor_options
2605 = (char **) xrealloc (preprocessor_options
,
2606 n_preprocessor_options
* sizeof (char **));
2608 /* Split the argument at commas. */
2610 for (j
= 4; argv
[i
][j
]; j
++)
2611 if (argv
[i
][j
] == ',')
2613 preprocessor_options
[n_preprocessor_options
- 1]
2614 = save_string (argv
[i
] + prev
, j
- prev
);
2615 n_preprocessor_options
++;
2616 preprocessor_options
2617 = (char **) xrealloc (preprocessor_options
,
2618 n_preprocessor_options
* sizeof (char **));
2621 /* Record the part after the last comma. */
2622 preprocessor_options
[n_preprocessor_options
- 1] = argv
[i
] + prev
;
2624 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2625 /* The +e options to the C++ front-end. */
2627 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
2630 /* Split the argument at commas. */
2631 for (j
= 3; argv
[i
][j
]; j
++)
2632 n_infiles
+= (argv
[i
][j
] == ',');
2634 else if (strcmp (argv
[i
], "-Xlinker") == 0)
2637 fatal ("argument to `-Xlinker' is missing");
2642 else if (strncmp (argv
[i
], "-l", 2) == 0)
2644 else if (strcmp (argv
[i
], "-save-temps") == 0)
2646 save_temps_flag
= 1;
2649 else if (strcmp (argv
[i
], "-specs") == 0)
2651 struct user_specs
*user
= (struct user_specs
*)
2652 xmalloc (sizeof (struct user_specs
));
2654 fatal ("argument to `-specs' is missing");
2656 user
->next
= (struct user_specs
*)0;
2657 user
->filename
= argv
[i
];
2658 if (user_specs_tail
)
2659 user_specs_tail
->next
= user
;
2661 user_specs_head
= user
;
2662 user_specs_tail
= user
;
2664 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
2666 struct user_specs
*user
= (struct user_specs
*)
2667 xmalloc (sizeof (struct user_specs
));
2668 if (strlen (argv
[i
]) == 7)
2669 fatal ("argument to `-specs=' is missing");
2671 user
->next
= (struct user_specs
*)0;
2672 user
->filename
= argv
[i
]+7;
2673 if (user_specs_tail
)
2674 user_specs_tail
->next
= user
;
2676 user_specs_head
= user
;
2677 user_specs_tail
= user
;
2679 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
2681 register char *p
= &argv
[i
][1];
2682 register int c
= *p
;
2688 if (p
[1] == 0 && i
+ 1 == argc
)
2689 fatal ("argument to `-b' is missing");
2691 spec_machine
= argv
[++i
];
2693 spec_machine
= p
+ 1;
2695 warn_std_ptr
= &warn_std
;
2701 if (p
[1] == 0 && i
+ 1 == argc
)
2702 fatal ("argument to `-B' is missing");
2707 add_prefix (&exec_prefixes
, value
, NULL_PTR
, 1, 0, &warn_B
);
2708 add_prefix (&startfile_prefixes
, value
, NULL_PTR
,
2710 add_prefix (&include_prefixes
, concat (value
, "include",
2712 NULL_PTR
, 1, 0, NULL_PTR
);
2714 /* As a kludge, if the arg is "[foo/]stageN/", just add
2715 "[foo/]include" to the include prefix. */
2717 int len
= strlen (value
);
2720 && (value
[len
- 8] == '/'
2721 || value
[len
- 8] == DIR_SEPARATOR
)))
2722 && strncmp (value
+ len
- 7, "stage", 5) == 0
2723 && ISDIGIT (value
[len
- 2])
2724 && (value
[len
- 1] == '/'
2725 || value
[len
- 1] == DIR_SEPARATOR
))
2728 add_prefix (&include_prefixes
, "include", NULL_PTR
,
2732 char *string
= xmalloc (len
+ 1);
2733 strncpy (string
, value
, len
-7);
2734 strcpy (string
+len
-7, "include");
2735 add_prefix (&include_prefixes
, string
, NULL_PTR
,
2744 case 'v': /* Print our subcommands and print versions. */
2746 /* If they do anything other than exactly `-v', don't set
2747 verbose_flag; rather, continue on to give the error. */
2755 if (p
[1] == 0 && i
+ 1 == argc
)
2756 fatal ("argument to `-V' is missing");
2758 spec_version
= argv
[++i
];
2760 spec_version
= p
+ 1;
2761 compiler_version
= spec_version
;
2762 warn_std_ptr
= &warn_std
;
2764 /* Validate the version number. Use the same checks
2765 done when inserting it into a spec.
2767 The format of the version string is
2768 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
2770 char *v
= compiler_version
;
2772 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
2773 while (! ISDIGIT (*v
))
2776 if (v
> compiler_version
&& v
[-1] != '-')
2777 fatal ("invalid version number format");
2779 /* Set V after the first period. */
2780 while (ISDIGIT (*v
))
2784 fatal ("invalid version number format");
2787 while (ISDIGIT (*v
))
2790 if (*v
!= 0 && *v
!= ' ' && *v
!= '.' && *v
!= '-')
2791 fatal ("invalid version number format");
2807 #if defined(HAVE_EXECUTABLE_SUFFIX)
2812 /* Forward scan, just in case -S or -c is specified
2819 if (argv
[j
][0] == '-')
2821 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
2827 else if (skip
= SWITCH_TAKES_ARG (argv
[j
][1]))
2828 j
+= skip
- (argv
[j
][2] != 0);
2829 else if (skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1))
2836 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
2838 argv
[i
+1] = convert_filename (argv
[i
+1], ! have_c
);
2840 argv
[i
] = convert_filename (argv
[i
], ! have_c
);
2848 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2849 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2850 else if (WORD_SWITCH_TAKES_ARG (p
))
2851 i
+= WORD_SWITCH_TAKES_ARG (p
);
2861 if (have_c
&& have_o
&& lang_n_infiles
> 1)
2862 fatal ("cannot specify -o with -c or -S and multiple compilations");
2864 /* Set up the search paths before we go looking for config files. */
2866 /* These come before the md prefixes so that we will find gcc's subcommands
2867 (such as cpp) rather than those of the host system. */
2868 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2869 as well as trying the machine and the version. */
2871 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
2872 0, 2, warn_std_ptr
);
2873 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
2874 0, 2, warn_std_ptr
);
2877 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
2878 0, 1, warn_std_ptr
);
2879 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, "BINUTILS",
2880 0, 1, warn_std_ptr
);
2882 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
2883 dir_separator_str
, NULL_PTR
);
2885 /* If tooldir is relative, base it on exec_prefixes. A relative
2886 tooldir lets us move the installed tree as a unit.
2888 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2889 directories, so that we can search both the user specified directory
2890 and the standard place. */
2892 if (*tooldir_prefix
!= '/' && *tooldir_prefix
!= DIR_SEPARATOR
)
2894 if (gcc_exec_prefix
)
2896 char *gcc_exec_tooldir_prefix
2897 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
2898 spec_version
, dir_separator_str
, tooldir_prefix
, NULL_PTR
);
2900 add_prefix (&exec_prefixes
,
2901 concat (gcc_exec_tooldir_prefix
, "bin",
2902 dir_separator_str
, NULL_PTR
),
2903 NULL_PTR
, 0, 0, NULL_PTR
);
2904 add_prefix (&startfile_prefixes
,
2905 concat (gcc_exec_tooldir_prefix
, "lib",
2906 dir_separator_str
, NULL_PTR
),
2907 NULL_PTR
, 0, 0, NULL_PTR
);
2910 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
2911 dir_separator_str
, spec_version
,
2912 dir_separator_str
, tooldir_prefix
, NULL_PTR
);
2915 add_prefix (&exec_prefixes
,
2916 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL_PTR
),
2917 "BINUTILS", 0, 0, NULL_PTR
);
2918 add_prefix (&startfile_prefixes
,
2919 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL_PTR
),
2920 "BINUTILS", 0, 0, NULL_PTR
);
2922 /* More prefixes are enabled in main, after we read the specs file
2923 and determine whether this is cross-compilation or not. */
2926 /* Then create the space for the vectors and scan again. */
2928 switches
= ((struct switchstr
*)
2929 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
2930 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
2933 last_language_n_infiles
= -1;
2935 /* This, time, copy the text of each switch and store a pointer
2936 to the copy in the vector of switches.
2937 Store all the infiles in their vector. */
2939 for (i
= 1; i
< argc
; i
++)
2941 /* Just skip the switches that were handled by the preceding loop. */
2942 if (! strncmp (argv
[i
], "-Wa,", 4))
2944 else if (! strncmp (argv
[i
], "-Wp,", 4))
2946 else if (! strcmp (argv
[i
], "-print-search-dirs"))
2948 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2950 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2952 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2954 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2956 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2958 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2960 /* Compensate for the +e options to the C++ front-end;
2961 they're there simply for cfront call-compatibility. We do
2962 some magic in default_compilers to pass them down properly.
2963 Note we deliberately start at the `+' here, to avoid passing
2964 -e0 or -e1 down into the linker. */
2965 switches
[n_switches
].part1
= &argv
[i
][0];
2966 switches
[n_switches
].args
= 0;
2967 switches
[n_switches
].live_cond
= 0;
2968 switches
[n_switches
].valid
= 0;
2971 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
2974 /* Split the argument at commas. */
2976 for (j
= 4; argv
[i
][j
]; j
++)
2977 if (argv
[i
][j
] == ',')
2979 infiles
[n_infiles
].language
= "*";
2980 infiles
[n_infiles
++].name
2981 = save_string (argv
[i
] + prev
, j
- prev
);
2984 /* Record the part after the last comma. */
2985 infiles
[n_infiles
].language
= "*";
2986 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
2988 else if (strcmp (argv
[i
], "-Xlinker") == 0)
2990 infiles
[n_infiles
].language
= "*";
2991 infiles
[n_infiles
++].name
= argv
[++i
];
2993 else if (strncmp (argv
[i
], "-l", 2) == 0)
2995 infiles
[n_infiles
].language
= "*";
2996 infiles
[n_infiles
++].name
= argv
[i
];
2998 else if (strcmp (argv
[i
], "-specs") == 0)
3000 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3002 /* -save-temps overrides -pipe, so that temp files are produced */
3003 else if (save_temps_flag
&& strcmp (argv
[i
], "-pipe") == 0)
3004 error ("Warning: -pipe ignored since -save-temps specified");
3005 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3007 register char *p
= &argv
[i
][1];
3008 register int c
= *p
;
3012 if (p
[1] == 0 && i
+ 1 == argc
)
3013 fatal ("argument to `-x' is missing");
3015 spec_lang
= argv
[++i
];
3018 if (! strcmp (spec_lang
, "none"))
3019 /* Suppress the warning if -xnone comes after the last input
3020 file, because alternate command interfaces like g++ might
3021 find it useful to place -xnone after each input file. */
3024 last_language_n_infiles
= n_infiles
;
3027 switches
[n_switches
].part1
= p
;
3028 /* Deal with option arguments in separate argv elements. */
3029 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3030 || WORD_SWITCH_TAKES_ARG (p
))
3033 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
3037 /* Count only the option arguments in separate argv elements. */
3038 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3040 if (i
+ n_args
>= argc
)
3041 fatal ("argument to `-%s' is missing", p
);
3042 switches
[n_switches
].args
3043 = (char **) xmalloc ((n_args
+ 1) * sizeof (char *));
3045 switches
[n_switches
].args
[j
++] = argv
[++i
];
3046 /* Null-terminate the vector. */
3047 switches
[n_switches
].args
[j
] = 0;
3049 else if (index (switches_need_spaces
, c
))
3051 /* On some systems, ld cannot handle some options without
3052 a space. So split the option from its argument. */
3053 char *part1
= (char *) xmalloc (2);
3057 switches
[n_switches
].part1
= part1
;
3058 switches
[n_switches
].args
= (char **) xmalloc (2 * sizeof (char *));
3059 switches
[n_switches
].args
[0] = xmalloc (strlen (p
));
3060 strcpy (switches
[n_switches
].args
[0], &p
[1]);
3061 switches
[n_switches
].args
[1] = 0;
3064 switches
[n_switches
].args
= 0;
3066 switches
[n_switches
].live_cond
= 0;
3067 switches
[n_switches
].valid
= 0;
3068 /* This is always valid, since gcc.c itself understands it. */
3069 if (!strcmp (p
, "save-temps"))
3070 switches
[n_switches
].valid
= 1;
3073 char ch
= switches
[n_switches
].part1
[0];
3074 if (ch
== 'V' || ch
== 'b' || ch
== 'B')
3075 switches
[n_switches
].valid
= 1;
3081 #ifdef HAVE_OBJECT_SUFFIX
3082 argv
[i
] = convert_filename (argv
[i
], 0);
3085 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], R_OK
) < 0)
3087 perror_with_name (argv
[i
]);
3092 infiles
[n_infiles
].language
= spec_lang
;
3093 infiles
[n_infiles
++].name
= argv
[i
];
3098 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
3099 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
3101 switches
[n_switches
].part1
= 0;
3102 infiles
[n_infiles
].name
= 0;
3105 /* Process a spec string, accumulating and running commands. */
3107 /* These variables describe the input file name.
3108 input_file_number is the index on outfiles of this file,
3109 so that the output file name can be stored for later use by %o.
3110 input_basename is the start of the part of the input file
3111 sans all directory names, and basename_length is the number
3112 of characters starting there excluding the suffix .c or whatever. */
3114 static char *input_filename
;
3115 static int input_file_number
;
3116 static size_t input_filename_length
;
3117 static int basename_length
;
3118 static char *input_basename
;
3119 static char *input_suffix
;
3121 /* These are variables used within do_spec and do_spec_1. */
3123 /* Nonzero if an arg has been started and not yet terminated
3124 (with space, tab or newline). */
3125 static int arg_going
;
3127 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3128 is a temporary file name. */
3129 static int delete_this_arg
;
3131 /* Nonzero means %w has been seen; the next arg to be terminated
3132 is the output file name of this compilation. */
3133 static int this_is_output_file
;
3135 /* Nonzero means %s has been seen; the next arg to be terminated
3136 is the name of a library file and we should try the standard
3137 search dirs for it. */
3138 static int this_is_library_file
;
3140 /* Nonzero means that the input of this command is coming from a pipe. */
3141 static int input_from_pipe
;
3143 /* Process the spec SPEC and run the commands specified therein.
3144 Returns 0 if the spec is successfully processed; -1 if failed. */
3154 delete_this_arg
= 0;
3155 this_is_output_file
= 0;
3156 this_is_library_file
= 0;
3157 input_from_pipe
= 0;
3159 value
= do_spec_1 (spec
, 0, NULL_PTR
);
3161 /* Force out any unfinished command.
3162 If -pipe, this forces out the last command if it ended in `|'. */
3165 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3168 if (argbuf_index
> 0)
3175 /* Process the sub-spec SPEC as a portion of a larger spec.
3176 This is like processing a whole spec except that we do
3177 not initialize at the beginning and we do not supply a
3178 newline by default at the end.
3179 INSWITCH nonzero means don't process %-sequences in SPEC;
3180 in this case, % is treated as an ordinary character.
3181 This is used while substituting switches.
3182 INSWITCH nonzero also causes SPC not to terminate an argument.
3184 Value is zero unless a line was finished
3185 and the command on that line reported an error. */
3188 do_spec_1 (spec
, inswitch
, soft_matched_part
)
3191 char *soft_matched_part
;
3193 register char *p
= spec
;
3200 /* If substituting a switch, treat all chars like letters.
3201 Otherwise, NL, SPC, TAB and % are special. */
3202 switch (inswitch
? 'a' : c
)
3205 /* End of line: finish any pending argument,
3206 then run the pending command if one has been started. */
3209 obstack_1grow (&obstack
, 0);
3210 string
= obstack_finish (&obstack
);
3211 if (this_is_library_file
)
3212 string
= find_file (string
);
3213 store_arg (string
, delete_this_arg
, this_is_output_file
);
3214 if (this_is_output_file
)
3215 outfiles
[input_file_number
] = string
;
3219 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3221 for (i
= 0; i
< n_switches
; i
++)
3222 if (!strcmp (switches
[i
].part1
, "pipe"))
3225 /* A `|' before the newline means use a pipe here,
3226 but only if -pipe was specified.
3227 Otherwise, execute now and don't pass the `|' as an arg. */
3230 input_from_pipe
= 1;
3231 switches
[i
].valid
= 1;
3238 if (argbuf_index
> 0)
3244 /* Reinitialize for a new command, and for a new argument. */
3247 delete_this_arg
= 0;
3248 this_is_output_file
= 0;
3249 this_is_library_file
= 0;
3250 input_from_pipe
= 0;
3254 /* End any pending argument. */
3257 obstack_1grow (&obstack
, 0);
3258 string
= obstack_finish (&obstack
);
3259 if (this_is_library_file
)
3260 string
= find_file (string
);
3261 store_arg (string
, delete_this_arg
, this_is_output_file
);
3262 if (this_is_output_file
)
3263 outfiles
[input_file_number
] = string
;
3267 obstack_1grow (&obstack
, c
);
3273 /* Space or tab ends an argument if one is pending. */
3276 obstack_1grow (&obstack
, 0);
3277 string
= obstack_finish (&obstack
);
3278 if (this_is_library_file
)
3279 string
= find_file (string
);
3280 store_arg (string
, delete_this_arg
, this_is_output_file
);
3281 if (this_is_output_file
)
3282 outfiles
[input_file_number
] = string
;
3284 /* Reinitialize for a new argument. */
3286 delete_this_arg
= 0;
3287 this_is_output_file
= 0;
3288 this_is_library_file
= 0;
3295 fatal ("Invalid specification! Bug in cc.");
3298 obstack_grow (&obstack
, input_basename
, basename_length
);
3303 delete_this_arg
= 2;
3306 /* Dump out the directories specified with LIBRARY_PATH,
3307 followed by the absolute directories
3308 that we search for startfiles. */
3311 struct prefix_list
*pl
= startfile_prefixes
.plist
;
3312 size_t bufsize
= 100;
3313 char *buffer
= (char *) xmalloc (bufsize
);
3316 for (; pl
; pl
= pl
->next
)
3318 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3319 /* Used on systems which record the specified -L dirs
3320 and use them to search for dynamic linking. */
3321 /* Relative directories always come from -B,
3322 and it is better not to use them for searching
3323 at run time. In particular, stage1 loses */
3324 if (pl
->prefix
[0] != '/' && pl
->prefix
[0] != DIR_SEPARATOR
)
3327 /* Try subdirectory if there is one. */
3328 if (multilib_dir
!= NULL
)
3332 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
3334 bufsize
= (strlen (pl
->prefix
)
3335 + strlen (machine_suffix
)) * 2 + 1;
3336 buffer
= (char *) xrealloc (buffer
, bufsize
);
3337 strcpy (buffer
, pl
->prefix
);
3338 strcat (buffer
, machine_suffix
);
3339 if (is_directory (buffer
, multilib_dir
, 1))
3341 do_spec_1 ("-L", 0, NULL_PTR
);
3342 #ifdef SPACE_AFTER_L_OPTION
3343 do_spec_1 (" ", 0, NULL_PTR
);
3345 do_spec_1 (buffer
, 1, NULL_PTR
);
3346 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3347 /* Make this a separate argument. */
3348 do_spec_1 (" ", 0, NULL_PTR
);
3351 if (!pl
->require_machine_suffix
)
3353 if (is_directory (pl
->prefix
, multilib_dir
, 1))
3355 do_spec_1 ("-L", 0, NULL_PTR
);
3356 #ifdef SPACE_AFTER_L_OPTION
3357 do_spec_1 (" ", 0, NULL_PTR
);
3359 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3360 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3361 /* Make this a separate argument. */
3362 do_spec_1 (" ", 0, NULL_PTR
);
3368 if (is_directory (pl
->prefix
, machine_suffix
, 1))
3370 do_spec_1 ("-L", 0, NULL_PTR
);
3371 #ifdef SPACE_AFTER_L_OPTION
3372 do_spec_1 (" ", 0, NULL_PTR
);
3374 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3375 /* Remove slash from machine_suffix. */
3376 if (strlen (machine_suffix
) >= bufsize
)
3377 bufsize
= strlen (machine_suffix
) * 2 + 1;
3378 buffer
= (char *) xrealloc (buffer
, bufsize
);
3379 strcpy (buffer
, machine_suffix
);
3380 idx
= strlen (buffer
);
3381 if (buffer
[idx
- 1] == '/'
3382 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3383 buffer
[idx
- 1] = 0;
3384 do_spec_1 (buffer
, 1, NULL_PTR
);
3385 /* Make this a separate argument. */
3386 do_spec_1 (" ", 0, NULL_PTR
);
3389 if (!pl
->require_machine_suffix
)
3391 if (is_directory (pl
->prefix
, "", 1))
3393 do_spec_1 ("-L", 0, NULL_PTR
);
3394 #ifdef SPACE_AFTER_L_OPTION
3395 do_spec_1 (" ", 0, NULL_PTR
);
3397 /* Remove slash from pl->prefix. */
3398 if (strlen (pl
->prefix
) >= bufsize
)
3399 bufsize
= strlen (pl
->prefix
) * 2 + 1;
3400 buffer
= (char *) xrealloc (buffer
, bufsize
);
3401 strcpy (buffer
, pl
->prefix
);
3402 idx
= strlen (buffer
);
3403 if (buffer
[idx
- 1] == '/'
3404 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3405 buffer
[idx
- 1] = 0;
3406 do_spec_1 (buffer
, 1, NULL_PTR
);
3407 /* Make this a separate argument. */
3408 do_spec_1 (" ", 0, NULL_PTR
);
3417 /* {...:%efoo} means report an error with `foo' as error message
3418 and don't execute any more commands for this file. */
3422 while (*p
!= 0 && *p
!= '\n') p
++;
3423 buf
= (char *) alloca (p
- q
+ 1);
3424 strncpy (buf
, q
, p
- q
);
3434 if (save_temps_flag
)
3436 obstack_grow (&obstack
, input_basename
, basename_length
);
3437 delete_this_arg
= 0;
3441 #ifdef MKTEMP_EACH_FILE
3442 /* ??? This has a problem: the total number of
3443 values mktemp can return is limited.
3444 That matters for the names of object files.
3445 In 2.4, do something about that. */
3446 struct temp_name
*t
;
3448 while (*p
== '.' || ISALPHA (*p
)
3449 || (p
[0] == '%' && p
[1] == 'O'))
3452 /* See if we already have an association of %g/%u/%U and
3454 for (t
= temp_names
; t
; t
= t
->next
)
3455 if (t
->length
== p
- suffix
3456 && strncmp (t
->suffix
, suffix
, p
- suffix
) == 0
3457 && t
->unique
== (c
!= 'g'))
3460 /* Make a new association if needed. %u requires one. */
3461 if (t
== 0 || c
== 'u')
3465 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
3466 t
->next
= temp_names
;
3469 t
->length
= p
- suffix
;
3470 t
->suffix
= save_string (suffix
, p
- suffix
);
3471 t
->unique
= (c
!= 'g');
3472 temp_filename
= choose_temp_base ();
3473 temp_filename_length
= strlen (temp_filename
);
3474 t
->filename
= temp_filename
;
3475 t
->filename_length
= temp_filename_length
;
3478 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
3479 delete_this_arg
= 1;
3481 obstack_grow (&obstack
, temp_filename
, temp_filename_length
);
3482 if (c
== 'u' || c
== 'U')
3488 sprintf (buff
, "%d", unique
);
3489 obstack_grow (&obstack
, buff
, strlen (buff
));
3492 delete_this_arg
= 1;
3498 obstack_grow (&obstack
, input_filename
, input_filename_length
);
3504 struct prefix_list
*pl
= include_prefixes
.plist
;
3506 if (gcc_exec_prefix
)
3508 do_spec_1 ("-iprefix", 1, NULL_PTR
);
3509 /* Make this a separate argument. */
3510 do_spec_1 (" ", 0, NULL_PTR
);
3511 do_spec_1 (gcc_exec_prefix
, 1, NULL_PTR
);
3512 do_spec_1 (" ", 0, NULL_PTR
);
3515 for (; pl
; pl
= pl
->next
)
3517 do_spec_1 ("-isystem", 1, NULL_PTR
);
3518 /* Make this a separate argument. */
3519 do_spec_1 (" ", 0, NULL_PTR
);
3520 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3521 do_spec_1 (" ", 0, NULL_PTR
);
3527 for (i
= 0; i
< n_infiles
; i
++)
3528 store_arg (outfiles
[i
], 0, 0);
3532 obstack_grow (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
3537 this_is_library_file
= 1;
3541 this_is_output_file
= 1;
3546 int cur_index
= argbuf_index
;
3547 /* Handle the {...} following the %W. */
3550 p
= handle_braces (p
+ 1);
3553 /* If any args were output, mark the last one for deletion
3555 if (argbuf_index
!= cur_index
)
3556 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
3560 /* %x{OPTION} records OPTION for %X to output. */
3566 /* Skip past the option value and make a copy. */
3571 string
= save_string (p1
+ 1, p
- p1
- 2);
3573 /* See if we already recorded this option. */
3574 for (i
= 0; i
< n_linker_options
; i
++)
3575 if (! strcmp (string
, linker_options
[i
]))
3581 /* This option is new; add it. */
3583 if (!linker_options
)
3585 = (char **) xmalloc (n_linker_options
* sizeof (char **));
3588 = (char **) xrealloc (linker_options
,
3589 n_linker_options
* sizeof (char **));
3591 linker_options
[n_linker_options
- 1] = string
;
3595 /* Dump out the options accumulated previously using %x. */
3597 for (i
= 0; i
< n_linker_options
; i
++)
3599 do_spec_1 (linker_options
[i
], 1, NULL_PTR
);
3600 /* Make each accumulated option a separate argument. */
3601 do_spec_1 (" ", 0, NULL_PTR
);
3605 /* Dump out the options accumulated previously using -Wa,. */
3607 for (i
= 0; i
< n_assembler_options
; i
++)
3609 do_spec_1 (assembler_options
[i
], 1, NULL_PTR
);
3610 /* Make each accumulated option a separate argument. */
3611 do_spec_1 (" ", 0, NULL_PTR
);
3615 /* Dump out the options accumulated previously using -Wp,. */
3617 for (i
= 0; i
< n_preprocessor_options
; i
++)
3619 do_spec_1 (preprocessor_options
[i
], 1, NULL_PTR
);
3620 /* Make each accumulated option a separate argument. */
3621 do_spec_1 (" ", 0, NULL_PTR
);
3625 /* Here are digits and numbers that just process
3626 a certain constant string as a spec. */
3629 value
= do_spec_1 (cc1_spec
, 0, NULL_PTR
);
3635 value
= do_spec_1 (cc1plus_spec
, 0, NULL_PTR
);
3641 value
= do_spec_1 (asm_spec
, 0, NULL_PTR
);
3647 value
= do_spec_1 (asm_final_spec
, 0, NULL_PTR
);
3653 value
= do_spec_1 (signed_char_spec
, 0, NULL_PTR
);
3659 value
= do_spec_1 (cpp_spec
, 0, NULL_PTR
);
3665 value
= do_spec_1 (endfile_spec
, 0, NULL_PTR
);
3671 value
= do_spec_1 (link_spec
, 0, NULL_PTR
);
3677 value
= do_spec_1 (lib_spec
, 0, NULL_PTR
);
3683 value
= do_spec_1 (libgcc_spec
, 0, NULL_PTR
);
3690 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
3694 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3698 if (! strncmp (y
, "-D", 2))
3699 /* Copy the whole option. */
3700 while (*y
&& *y
!= ' ' && *y
!= '\t')
3702 else if (*y
== ' ' || *y
== '\t')
3703 /* Copy whitespace to the result. */
3705 /* Don't copy other options. */
3712 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3720 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
3724 /* Copy all of CPP_PREDEFINES into BUF,
3725 but put __ after every -D and at the end of each arg. */
3729 if (! strncmp (y
, "-D", 2))
3737 || (*(y
+1) != '_' && ! ISUPPER (*(y
+1))))
3739 /* Stick __ at front of macro name. */
3742 /* Arrange to stick __ at the end as well. */
3746 /* Copy the macro name. */
3747 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3756 /* Copy the value given, if any. */
3757 while (*y
&& *y
!= ' ' && *y
!= '\t')
3760 else if (*y
== ' ' || *y
== '\t')
3761 /* Copy whitespace to the result. */
3763 /* Don't copy -A options */
3769 /* Copy all of CPP_PREDEFINES into BUF,
3770 but put __ after every -D. */
3774 if (! strncmp (y
, "-D", 2))
3779 || (*(y
+1) != '_' && ! ISUPPER (*(y
+1))))
3781 /* Stick -D__ at front of macro name. */
3787 /* Copy the macro name. */
3788 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3791 /* Copy the value given, if any. */
3792 while (*y
&& *y
!= ' ' && *y
!= '\t')
3797 /* Do not copy this macro - we have just done it before */
3798 while (*y
&& *y
!= ' ' && *y
!= '\t')
3802 else if (*y
== ' ' || *y
== '\t')
3803 /* Copy whitespace to the result. */
3805 /* Don't copy -A options */
3811 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3815 if (! strncmp (y
, "-A", 2))
3816 /* Copy the whole option. */
3817 while (*y
&& *y
!= ' ' && *y
!= '\t')
3819 else if (*y
== ' ' || *y
== '\t')
3820 /* Copy whitespace to the result. */
3822 /* Don't copy other options. */
3829 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3836 value
= do_spec_1 (startfile_spec
, 0, NULL_PTR
);
3841 /* Here we define characters other than letters and digits. */
3844 p
= handle_braces (p
);
3850 obstack_1grow (&obstack
, '%');
3854 do_spec_1 (soft_matched_part
, 1, NULL_PTR
);
3855 do_spec_1 (" ", 0, NULL_PTR
);
3858 /* Process a string found as the value of a spec given by name.
3859 This feature allows individual machine descriptions
3860 to add and use their own specs.
3861 %[...] modifies -D options the way %P does;
3862 %(...) uses the spec unmodified. */
3867 struct spec_list
*sl
;
3870 /* The string after the S/P is the name of a spec that is to be
3872 while (*p
&& *p
!= ')' && *p
!= ']')
3875 /* See if it's in the list */
3876 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
3877 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
3879 name
= *(sl
->ptr_spec
);
3881 fprintf (stderr
, "Processing spec %c%s%c, which is '%s'\n",
3882 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
3891 value
= do_spec_1 (name
, 0, NULL_PTR
);
3897 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
3902 /* Copy all of NAME into BUF, but put __ after
3903 every -D and at the end of each arg, */
3906 if (! strncmp (y
, "-D", 2))
3916 else if (flag
&& (*y
== ' ' || *y
== '\t' || *y
== '='
3917 || *y
== '}' || *y
== 0))
3930 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3936 /* Discard the closing paren or bracket. */
3944 int c1
= *p
++; /* Select first or second version number. */
3945 char *v
= compiler_version
;
3948 /* The format of the version string is
3949 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3951 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3952 while (! ISDIGIT (*v
))
3954 if (v
> compiler_version
&& v
[-1] != '-')
3957 /* If desired, advance to second version number. */
3960 /* Set V after the first period. */
3961 while (ISDIGIT (*v
))
3968 /* Set Q at the next period or at the end. */
3970 while (ISDIGIT (*q
))
3972 if (*q
!= 0 && *q
!= ' ' && *q
!= '.' && *q
!= '-')
3975 /* Put that part into the command. */
3976 obstack_grow (&obstack
, v
, q
- v
);
3982 if (input_from_pipe
)
3983 do_spec_1 ("-", 0, NULL_PTR
);
3992 /* Backslash: treat next character as ordinary. */
3997 /* Ordinary character: put it into the current argument. */
3998 obstack_1grow (&obstack
, c
);
4002 return 0; /* End of string */
4005 /* Return 0 if we call do_spec_1 and that returns -1. */
4016 int include_blanks
= 1;
4019 /* A '^' after the open-brace means to not give blanks before args. */
4020 include_blanks
= 0, ++p
;
4023 /* A `|' after the open-brace means,
4024 if the test fails, output a single minus sign rather than nothing.
4025 This is used in %{|!pipe:...}. */
4029 /* A `!' after the open-brace negates the condition:
4030 succeed if the specified switch is not present. */
4034 /* A `.' after the open-brace means test against the current suffix. */
4044 while (*p
!= ':' && *p
!= '}') p
++;
4047 register int count
= 1;
4065 int found
= (input_suffix
!= 0
4066 && strlen (input_suffix
) == p
- filter
4067 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
4073 && do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
4078 else if (p
[-1] == '*' && p
[0] == '}')
4080 /* Substitute all matching switches as separate args. */
4083 for (i
= 0; i
< n_switches
; i
++)
4084 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4085 && check_live_switch (i
, p
- filter
))
4086 give_switch (i
, 0, include_blanks
);
4090 /* Test for presence of the specified switch. */
4094 /* If name specified ends in *, as in {x*:...},
4095 check for %* and handle that case. */
4096 if (p
[-1] == '*' && !negate
)
4101 /* First see whether we have %*. */
4105 if (*r
== '%' && r
[1] == '*')
4109 /* If we do, handle that case. */
4112 /* Substitute all matching switches as separate args.
4113 But do this by substituting for %*
4114 in the text that follows the colon. */
4116 unsigned hard_match_len
= p
- filter
- 1;
4117 char *string
= save_string (p
+ 1, q
- p
- 2);
4119 for (i
= 0; i
< n_switches
; i
++)
4120 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4121 && check_live_switch (i
, -1))
4123 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
4124 /* Pass any arguments this switch has. */
4125 give_switch (i
, 1, 1);
4132 /* If name specified ends in *, as in {x*:...},
4133 check for presence of any switch name starting with x. */
4136 for (i
= 0; i
< n_switches
; i
++)
4138 unsigned hard_match_len
= p
- filter
- 1;
4140 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4141 && check_live_switch (i
, hard_match_len
))
4147 /* Otherwise, check for presence of exact name specified. */
4150 for (i
= 0; i
< n_switches
; i
++)
4152 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4153 && switches
[i
].part1
[p
- filter
] == 0
4154 && check_live_switch (i
, -1))
4162 /* If it is as desired (present for %{s...}, absent for %{-s...})
4163 then substitute either the switch or the specified
4164 conditional text. */
4165 if (present
!= negate
)
4169 give_switch (i
, 0, include_blanks
);
4173 if (do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
4179 /* Here if a %{|...} conditional fails: output a minus sign,
4180 which means "standard output" or "standard input". */
4181 do_spec_1 ("-", 0, NULL_PTR
);
4188 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4189 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4190 spec, or -1 if either exact match or %* is used.
4192 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4193 whose value does not begin with "no-" is obsoleted by the same value
4194 with the "no-", similarly for a switch with the "no-" prefix. */
4197 check_live_switch (switchnum
, prefix_length
)
4201 char *name
= switches
[switchnum
].part1
;
4204 /* In the common case of {<at-most-one-letter>*}, a negating
4205 switch would always match, so ignore that case. We will just
4206 send the conflicting switches to the compiler phase. */
4207 if (prefix_length
>= 0 && prefix_length
<= 1)
4210 /* If we already processed this switch and determined if it was
4211 live or not, return our past determination. */
4212 if (switches
[switchnum
].live_cond
!= 0)
4213 return switches
[switchnum
].live_cond
> 0;
4215 /* Now search for duplicate in a manner that depends on the name. */
4219 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4220 if (switches
[i
].part1
[0] == 'O')
4222 switches
[switchnum
].valid
= 1;
4223 switches
[switchnum
].live_cond
= -1;
4228 case 'W': case 'f': case 'm':
4229 if (! strncmp (name
+ 1, "no-", 3))
4231 /* We have Xno-YYY, search for XYYY. */
4232 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4233 if (switches
[i
].part1
[0] == name
[0]
4234 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
4236 switches
[switchnum
].valid
= 1;
4237 switches
[switchnum
].live_cond
= -1;
4243 /* We have XYYY, search for Xno-YYY. */
4244 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4245 if (switches
[i
].part1
[0] == name
[0]
4246 && switches
[i
].part1
[1] == 'n'
4247 && switches
[i
].part1
[2] == 'o'
4248 && switches
[i
].part1
[3] == '-'
4249 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
4251 switches
[switchnum
].valid
= 1;
4252 switches
[switchnum
].live_cond
= -1;
4259 /* Otherwise the switch is live. */
4260 switches
[switchnum
].live_cond
= 1;
4264 /* Pass a switch to the current accumulating command
4265 in the same form that we received it.
4266 SWITCHNUM identifies the switch; it is an index into
4267 the vector of switches gcc received, which is `switches'.
4268 This cannot fail since it never finishes a command line.
4270 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4272 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
4276 give_switch (switchnum
, omit_first_word
, include_blanks
)
4278 int omit_first_word
;
4281 if (!omit_first_word
)
4283 do_spec_1 ("-", 0, NULL_PTR
);
4284 do_spec_1 (switches
[switchnum
].part1
, 1, NULL_PTR
);
4287 if (switches
[switchnum
].args
!= 0)
4290 for (p
= switches
[switchnum
].args
; *p
; p
++)
4293 do_spec_1 (" ", 0, NULL_PTR
);
4294 do_spec_1 (*p
, 1, NULL_PTR
);
4298 do_spec_1 (" ", 0, NULL_PTR
);
4299 switches
[switchnum
].valid
= 1;
4302 /* Search for a file named NAME trying various prefixes including the
4303 user's -B prefix and some standard ones.
4304 Return the absolute file name found. If nothing is found, return NAME. */
4312 /* Try multilib_dir if it is defined. */
4313 if (multilib_dir
!= NULL
)
4317 try = (char *) alloca (strlen (multilib_dir
) + strlen (name
) + 2);
4318 strcpy (try, multilib_dir
);
4319 strcat (try, dir_separator_str
);
4322 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
4324 /* If we don't find it in the multi library dir, then fall
4325 through and look for it in the normal places. */
4326 if (newname
!= NULL
)
4330 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
4331 return newname
? newname
: name
;
4334 /* Determine whether a directory exists. If LINKER, return 0 for
4335 certain fixed names not needed by the linker. If not LINKER, it is
4336 only important to return 0 if the host machine has a small ARG_MAX
4340 is_directory (path1
, path2
, linker
)
4345 int len1
= strlen (path1
);
4346 int len2
= strlen (path2
);
4347 char *path
= (char *) alloca (3 + len1
+ len2
);
4351 #ifndef SMALL_ARG_MAX
4356 /* Construct the path from the two parts. Ensure the string ends with "/.".
4357 The resulting path will be a directory even if the given path is a
4359 bcopy (path1
, path
, len1
);
4360 bcopy (path2
, path
+ len1
, len2
);
4361 cp
= path
+ len1
+ len2
;
4362 if (cp
[-1] != '/' && cp
[-1] != DIR_SEPARATOR
)
4363 *cp
++ = DIR_SEPARATOR
;
4367 /* Exclude directories that the linker is known to search. */
4370 && strcmp (path
, concat (dir_separator_str
, "lib",
4371 dir_separator_str
, ".", NULL_PTR
)) == 0)
4373 && strcmp (path
, concat (dir_separator_str
, "usr",
4374 dir_separator_str
, "lib",
4375 dir_separator_str
, ".", NULL_PTR
)) == 0)))
4378 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
4381 /* On fatal signals, delete all the temporary files. */
4384 fatal_error (signum
)
4387 signal (signum
, SIG_DFL
);
4388 delete_failure_queue ();
4389 delete_temp_files ();
4390 /* Get the same signal again, this time not handled,
4391 so its normal effect occurs. */
4392 kill (getpid (), signum
);
4403 int linker_was_run
= 0;
4404 char *explicit_link_files
;
4407 struct user_specs
*uptr
;
4409 p
= argv
[0] + strlen (argv
[0]);
4410 while (p
!= argv
[0] && p
[-1] != '/' && p
[-1] != DIR_SEPARATOR
) --p
;
4413 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
4414 signal (SIGINT
, fatal_error
);
4416 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
4417 signal (SIGHUP
, fatal_error
);
4419 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
4420 signal (SIGTERM
, fatal_error
);
4422 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
4423 signal (SIGPIPE
, fatal_error
);
4427 argbuf
= (char **) xmalloc (argbuf_length
* sizeof (char *));
4429 obstack_init (&obstack
);
4431 /* Build multilib_select, et. al from the separate lines that make up each
4432 multilib selection. */
4434 char **q
= multilib_raw
;
4437 obstack_init (&multilib_obstack
);
4438 while ((p
= *q
++) != (char *) 0)
4439 obstack_grow (&multilib_obstack
, p
, strlen (p
));
4441 obstack_1grow (&multilib_obstack
, 0);
4442 multilib_select
= obstack_finish (&multilib_obstack
);
4444 q
= multilib_matches_raw
;
4445 while ((p
= *q
++) != (char *) 0)
4446 obstack_grow (&multilib_obstack
, p
, strlen (p
));
4448 obstack_1grow (&multilib_obstack
, 0);
4449 multilib_matches
= obstack_finish (&multilib_obstack
);
4453 i
< sizeof (multilib_defaults_raw
) / sizeof (multilib_defaults_raw
[0]);
4457 obstack_1grow (&multilib_obstack
, ' ');
4458 obstack_grow (&multilib_obstack
,
4459 multilib_defaults_raw
[i
],
4460 strlen (multilib_defaults_raw
[i
]));
4464 obstack_1grow (&multilib_obstack
, 0);
4465 multilib_defaults
= obstack_finish (&multilib_obstack
);
4468 /* Set up to remember the pathname of gcc and any options
4469 needed for collect. We use argv[0] instead of programname because
4470 we need the complete pathname. */
4471 obstack_init (&collect_obstack
);
4472 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4473 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0])+1);
4474 putenv (obstack_finish (&collect_obstack
));
4476 #ifdef INIT_ENVIRONMENT
4477 /* Set up any other necessary machine specific environment variables. */
4478 putenv (INIT_ENVIRONMENT
);
4481 /* Choose directory for temp files. */
4483 temp_filename
= choose_temp_base ();
4484 temp_filename_length
= strlen (temp_filename
);
4486 /* Make a table of what switches there are (switches, n_switches).
4487 Make a table of specified input files (infiles, n_infiles).
4488 Decode switches that are handled locally. */
4490 process_command (argc
, argv
);
4495 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4497 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4498 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4501 for (i
= 0; i
< n_switches
; i
++)
4506 obstack_grow (&collect_obstack
, " ", 1);
4509 obstack_grow (&collect_obstack
, "'-", 2);
4510 q
= switches
[i
].part1
;
4511 while ((p
= index (q
,'\'')))
4513 obstack_grow (&collect_obstack
, q
, p
-q
);
4514 obstack_grow (&collect_obstack
, "'\\''", 4);
4517 obstack_grow (&collect_obstack
, q
, strlen (q
));
4518 obstack_grow (&collect_obstack
, "'", 1);
4520 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4522 obstack_grow (&collect_obstack
, " '", 2);
4524 while ((p
= index (q
,'\'')))
4526 obstack_grow (&collect_obstack
, q
, p
-q
);
4527 obstack_grow (&collect_obstack
, "'\\''", 4);
4530 obstack_grow (&collect_obstack
, q
, strlen (q
));
4531 obstack_grow (&collect_obstack
, "'", 1);
4534 obstack_grow (&collect_obstack
, "\0", 1);
4535 putenv (obstack_finish (&collect_obstack
));
4538 /* Initialize the vector of specs to just the default.
4539 This means one element containing 0s, as a terminator. */
4541 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
4542 bcopy ((char *) default_compilers
, (char *) compilers
,
4543 sizeof default_compilers
);
4544 n_compilers
= n_default_compilers
;
4546 /* Read specs from a file if there is one. */
4548 machine_suffix
= concat (spec_machine
, dir_separator_str
,
4549 spec_version
, dir_separator_str
, NULL_PTR
);
4550 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL_PTR
);
4552 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
4553 /* Read the specs file unless it is a default one. */
4554 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
4555 read_specs (specs_file
, TRUE
);
4559 /* We need to check standard_exec_prefix/just_machine_suffix/specs
4560 for any override of as, ld and libraries. */
4561 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
4562 + strlen (just_machine_suffix
)
4563 + sizeof ("specs"));
4565 strcpy (specs_file
, standard_exec_prefix
);
4566 strcat (specs_file
, just_machine_suffix
);
4567 strcat (specs_file
, "specs");
4568 if (access (specs_file
, R_OK
) == 0)
4569 read_specs (specs_file
, TRUE
);
4571 /* Process any user specified specs in the order given on the command
4573 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
4575 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
, R_OK
);
4576 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
4579 /* If not cross-compiling, look for startfiles in the standard places. */
4580 /* The fact that these are done here, after reading the specs file,
4581 means that it cannot be found in these directories.
4582 But that's okay. It should never be there anyway. */
4583 if (*cross_compile
== '0')
4585 #ifdef MD_EXEC_PREFIX
4586 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
4587 add_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
4590 #ifdef MD_STARTFILE_PREFIX
4591 add_prefix (&startfile_prefixes
, md_startfile_prefix
, "GCC",
4595 #ifdef MD_STARTFILE_PREFIX_1
4596 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, "GCC",
4600 /* If standard_startfile_prefix is relative, base it on
4601 standard_exec_prefix. This lets us move the installed tree
4602 as a unit. If GCC_EXEC_PREFIX is defined, base
4603 standard_startfile_prefix on that as well. */
4604 if (*standard_startfile_prefix
== '/'
4605 || *standard_startfile_prefix
== DIR_SEPARATOR
4606 || *standard_startfile_prefix
== '$'
4608 /* Check for disk name on MS-DOS-based systems. */
4609 || (standard_startfile_prefix
[1] == ':'
4610 && (standard_startfile_prefix
[2] == DIR_SEPARATOR
4611 || standard_startfile_prefix
[2] == '/'))
4614 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, "BINUTILS",
4618 if (gcc_exec_prefix
)
4619 add_prefix (&startfile_prefixes
,
4620 concat (gcc_exec_prefix
, machine_suffix
,
4621 standard_startfile_prefix
, NULL_PTR
),
4622 NULL_PTR
, 0, 0, NULL_PTR
);
4623 add_prefix (&startfile_prefixes
,
4624 concat (standard_exec_prefix
,
4626 standard_startfile_prefix
, NULL_PTR
),
4627 NULL_PTR
, 0, 0, NULL_PTR
);
4630 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
4631 "BINUTILS", 0, 0, NULL_PTR
);
4632 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
4633 "BINUTILS", 0, 0, NULL_PTR
);
4634 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4635 add_prefix (&startfile_prefixes
, "./", NULL_PTR
, 0, 1, NULL_PTR
);
4640 if (*standard_startfile_prefix
!= DIR_SEPARATOR
&& gcc_exec_prefix
)
4641 add_prefix (&startfile_prefixes
,
4642 concat (gcc_exec_prefix
, machine_suffix
,
4643 standard_startfile_prefix
, NULL_PTR
),
4644 "BINUTILS", 0, 0, NULL_PTR
);
4647 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4648 if (gcc_exec_prefix
)
4650 char * temp
= (char *) xmalloc (strlen (gcc_exec_prefix
)
4651 + strlen (spec_version
)
4652 + strlen (spec_machine
) + 3);
4653 strcpy (temp
, gcc_exec_prefix
);
4654 strcat (temp
, spec_machine
);
4655 strcat (temp
, dir_separator_str
);
4656 strcat (temp
, spec_version
);
4657 strcat (temp
, dir_separator_str
);
4658 gcc_exec_prefix
= temp
;
4661 /* Now we have the specs.
4662 Set the `valid' bits for switches that match anything in any spec. */
4664 validate_all_switches ();
4666 /* Now that we have the switches and the specs, set
4667 the subdirectory based on the options. */
4668 set_multilib_dir ();
4670 /* Warn about any switches that no pass was interested in. */
4672 for (i
= 0; i
< n_switches
; i
++)
4673 if (! switches
[i
].valid
)
4674 error ("unrecognized option `-%s'", switches
[i
].part1
);
4676 /* Obey some of the options. */
4678 if (print_search_dirs
)
4680 printf ("install: %s%s\n", standard_exec_prefix
, machine_suffix
);
4681 printf ("programs: %s\n", build_search_list (&exec_prefixes
, "", 0));
4682 printf ("libraries: %s\n", build_search_list (&startfile_prefixes
, "", 0));
4686 if (print_file_name
)
4688 printf ("%s\n", find_file (print_file_name
));
4692 if (print_prog_name
)
4694 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
4695 printf ("%s\n", (newname
? newname
: print_prog_name
));
4699 if (print_multi_lib
)
4701 print_multilib_info ();
4705 if (print_multi_directory
)
4707 if (multilib_dir
== NULL
)
4710 printf ("%s\n", multilib_dir
);
4718 /* compiler_version is truncated at the first space when initialized
4719 from version string, so truncate version_string at the first space
4720 before comparing. */
4721 for (n
= 0; version_string
[n
]; n
++)
4722 if (version_string
[n
] == ' ')
4725 if (! strncmp (version_string
, compiler_version
, n
)
4726 && compiler_version
[n
] == 0)
4727 fprintf (stderr
, "gcc version %s\n", version_string
);
4729 fprintf (stderr
, "gcc driver version %s executing gcc version %s\n",
4730 version_string
, compiler_version
);
4736 if (n_infiles
== added_libraries
)
4737 fatal ("No input files");
4739 /* Make a place to record the compiler output file names
4740 that correspond to the input files. */
4742 outfiles
= (char **) xmalloc (n_infiles
* sizeof (char *));
4743 bzero ((char *) outfiles
, n_infiles
* sizeof (char *));
4745 /* Record which files were specified explicitly as link input. */
4747 explicit_link_files
= xmalloc (n_infiles
);
4748 bzero (explicit_link_files
, n_infiles
);
4750 for (i
= 0; i
< n_infiles
; i
++)
4752 register struct compiler
*cp
= 0;
4753 int this_file_error
= 0;
4755 /* Tell do_spec what to substitute for %i. */
4757 input_filename
= infiles
[i
].name
;
4758 input_filename_length
= strlen (input_filename
);
4759 input_file_number
= i
;
4761 /* Use the same thing in %o, unless cp->spec says otherwise. */
4763 outfiles
[i
] = input_filename
;
4765 /* Figure out which compiler from the file's suffix. */
4767 cp
= lookup_compiler (infiles
[i
].name
, input_filename_length
,
4768 infiles
[i
].language
);
4772 /* Ok, we found an applicable compiler. Run its spec. */
4773 /* First say how much of input_filename to substitute for %b */
4777 if (cp
->spec
[0][0] == '#')
4778 error ("%s: %s compiler not installed on this system",
4779 input_filename
, &cp
->spec
[0][1]);
4781 input_basename
= input_filename
;
4782 for (p
= input_filename
; *p
; p
++)
4783 if (*p
== '/' || *p
== DIR_SEPARATOR
)
4784 input_basename
= p
+ 1;
4786 /* Find a suffix starting with the last period,
4787 and set basename_length to exclude that suffix. */
4788 basename_length
= strlen (input_basename
);
4789 p
= input_basename
+ basename_length
;
4790 while (p
!= input_basename
&& *p
!= '.') --p
;
4791 if (*p
== '.' && p
!= input_basename
)
4793 basename_length
= p
- input_basename
;
4794 input_suffix
= p
+ 1;
4800 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4802 len
+= strlen (cp
->spec
[j
]);
4804 p
= (char *) xmalloc (len
+ 1);
4807 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4810 strcpy (p
+ len
, cp
->spec
[j
]);
4811 len
+= strlen (cp
->spec
[j
]);
4814 value
= do_spec (p
);
4817 this_file_error
= 1;
4820 /* If this file's name does not contain a recognized suffix,
4821 record it as explicit linker input. */
4824 explicit_link_files
[i
] = 1;
4826 /* Clear the delete-on-failure queue, deleting the files in it
4827 if this compilation failed. */
4829 if (this_file_error
)
4831 delete_failure_queue ();
4834 /* If this compilation succeeded, don't delete those files later. */
4835 clear_failure_queue ();
4838 /* Run ld to link all the compiler output files. */
4840 if (error_count
== 0)
4842 int tmp
= execution_count
;
4844 /* We'll use ld if we can't find collect2. */
4845 if (! strcmp (linker_name_spec
, "collect2"))
4847 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
);
4849 linker_name_spec
= "ld";
4851 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4853 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH=");
4854 putenv_from_prefixes (&startfile_prefixes
, "LIBRARY_PATH=");
4856 value
= do_spec (link_command_spec
);
4859 linker_was_run
= (tmp
!= execution_count
);
4862 /* Warn if a -B option was specified but the prefix was never used. */
4863 unused_prefix_warnings (&exec_prefixes
);
4864 unused_prefix_warnings (&startfile_prefixes
);
4866 /* If options said don't run linker,
4867 complain about input files to be given to the linker. */
4869 if (! linker_was_run
&& error_count
== 0)
4870 for (i
= 0; i
< n_infiles
; i
++)
4871 if (explicit_link_files
[i
])
4872 error ("%s: linker input file unused since linking not done",
4875 /* Delete some or all of the temporary files we made. */
4878 delete_failure_queue ();
4879 delete_temp_files ();
4881 exit (error_count
> 0 ? (signal_count
? 2 : 1) : 0);
4886 /* Find the proper compilation spec for the file name NAME,
4887 whose length is LENGTH. LANGUAGE is the specified language,
4888 or 0 if this file is to be passed to the linker. */
4890 static struct compiler
*
4891 lookup_compiler (name
, length
, language
)
4896 struct compiler
*cp
;
4898 /* If this was specified by the user to be a linker input, indicate that. */
4899 if (language
!= 0 && language
[0] == '*')
4902 /* Otherwise, look for the language, if one is spec'd. */
4905 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4906 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
4909 error ("language %s not recognized", language
);
4913 /* Look for a suffix. */
4914 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4916 if (/* The suffix `-' matches only the file name `-'. */
4917 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
4918 || (strlen (cp
->suffix
) < length
4919 /* See if the suffix matches the end of NAME. */
4921 && ((!strcmp (cp
->suffix
,
4922 name
+ length
- strlen (cp
->suffix
))
4923 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
4924 && !strcasecmp (cp
->suffix
,
4925 name
+ length
- strlen (cp
->suffix
)))
4927 && !strcmp (cp
->suffix
,
4928 name
+ length
- strlen (cp
->suffix
))
4932 if (cp
->spec
[0][0] == '@')
4934 struct compiler
*new;
4936 /* An alias entry maps a suffix to a language.
4937 Search for the language; pass 0 for NAME and LENGTH
4938 to avoid infinite recursion if language not found.
4939 Construct the new compiler spec. */
4940 language
= cp
->spec
[0] + 1;
4941 new = (struct compiler
*) xmalloc (sizeof (struct compiler
));
4942 new->suffix
= cp
->suffix
;
4943 bcopy ((char *) lookup_compiler (NULL_PTR
, 0, language
)->spec
,
4944 (char *) new->spec
, sizeof new->spec
);
4948 /* A non-alias entry: return it. */
4960 register char *value
= (char *) malloc (size
);
4962 fatal ("virtual memory exhausted");
4967 xrealloc (ptr
, size
)
4971 register char *value
= (char *) realloc (ptr
, size
);
4973 fatal ("virtual memory exhausted");
4977 /* This function is based on the one in libiberty. */
4980 concat
VPROTO((char *first
, ...))
4982 register int length
;
4983 register char *newstr
;
4991 /* First compute the size of the result and get sufficient memory. */
4993 VA_START (args
, first
);
4995 first
= va_arg (args
, char *);
5003 length
+= strlen (arg
);
5004 arg
= va_arg (args
, char *);
5007 newstr
= (char *) xmalloc (length
+ 1);
5010 /* Now copy the individual pieces to the result string. */
5012 VA_START (args
, first
);
5014 first
= va_arg (args
, char *);
5023 arg
= va_arg (args
, char *);
5032 save_string (s
, len
)
5036 register char *result
= xmalloc (len
+ 1);
5038 bcopy (s
, result
, len
);
5044 pfatal_with_name (name
)
5047 fatal ("%s: %s", name
, my_strerror (errno
));
5051 perror_with_name (name
)
5054 error ("%s: %s", name
, my_strerror (errno
));
5058 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
5062 int save_errno
= errno
;
5066 /* Space for trailing '\0' is in %s. */
5067 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
5068 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
5072 fatal ("%s: %s", errmsg_fmt
, my_strerror (save_errno
));
5075 /* More 'friendly' abort that prints the line and file.
5076 config.h can #define abort fancy_abort if you like that sort of thing. */
5081 fatal ("Internal gcc abort.");
5084 /* Output an error message and exit */
5087 fatal
VPROTO((char *format
, ...))
5094 VA_START (ap
, format
);
5097 format
= va_arg (ap
, char *);
5100 fprintf (stderr
, "%s: ", programname
);
5101 vfprintf (stderr
, format
, ap
);
5103 fprintf (stderr
, "\n");
5104 delete_temp_files ();
5109 error
VPROTO((char *format
, ...))
5116 VA_START (ap
, format
);
5119 format
= va_arg (ap
, char *);
5122 fprintf (stderr
, "%s: ", programname
);
5123 vfprintf (stderr
, format
, ap
);
5126 fprintf (stderr
, "\n");
5130 validate_all_switches ()
5132 struct compiler
*comp
;
5135 struct spec_list
*spec
;
5137 for (comp
= compilers
; comp
->spec
[0]; comp
++)
5140 for (i
= 0; i
< sizeof comp
->spec
/ sizeof comp
->spec
[0] && comp
->spec
[i
]; i
++)
5144 if (c
== '%' && *p
== '{')
5145 /* We have a switch spec. */
5146 validate_switches (p
+ 1);
5150 /* look through the linked list of specs read from the specs file */
5151 for (spec
= specs
; spec
; spec
= spec
->next
)
5153 p
= *(spec
->ptr_spec
);
5155 if (c
== '%' && *p
== '{')
5156 /* We have a switch spec. */
5157 validate_switches (p
+ 1);
5160 p
= link_command_spec
;
5162 if (c
== '%' && *p
== '{')
5163 /* We have a switch spec. */
5164 validate_switches (p
+ 1);
5167 /* Look at the switch-name that comes after START
5168 and mark as valid all supplied switches that match it. */
5171 validate_switches (start
)
5174 register char *p
= start
;
5189 while (*p
!= ':' && *p
!= '}') p
++;
5193 else if (p
[-1] == '*')
5195 /* Mark all matching switches as valid. */
5197 for (i
= 0; i
< n_switches
; i
++)
5198 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
))
5199 switches
[i
].valid
= 1;
5203 /* Mark an exact matching switch as valid. */
5204 for (i
= 0; i
< n_switches
; i
++)
5206 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
5207 && switches
[i
].part1
[p
- filter
] == 0)
5208 switches
[i
].valid
= 1;
5213 /* Check whether a particular argument was used. The first time we
5214 canonicalize the switches to keep only the ones we care about. */
5228 static struct mswitchstr
*mswitches
;
5229 static int n_mswitches
;
5234 struct mswitchstr
*matches
;
5238 /* Break multilib_matches into the component strings of string and replacement
5240 for (q
= multilib_matches
; *q
!= '\0'; q
++)
5244 matches
= (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
5246 q
= multilib_matches
;
5257 matches
[i
].len
= q
- matches
[i
].str
;
5259 matches
[i
].replace
= ++q
;
5260 while (*q
!= ';' && *q
!= '\0')
5266 matches
[i
].rep_len
= q
- matches
[i
].replace
;
5274 /* Now build a list of the replacement string for switches that we care
5275 about. Make sure we allocate at least one entry. This prevents
5276 xmalloc from calling fatal, and prevents us from re-executing this
5279 = (struct mswitchstr
*) xmalloc ((sizeof (struct mswitchstr
))
5280 * (n_switches
? n_switches
: 1));
5281 for (i
= 0; i
< n_switches
; i
++)
5283 int xlen
= strlen (switches
[i
].part1
);
5284 for (j
= 0; j
< cnt
; j
++)
5285 if (xlen
== matches
[j
].len
&& ! strcmp (switches
[i
].part1
, matches
[j
].str
))
5287 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
5288 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
5289 mswitches
[n_mswitches
].replace
= (char *)0;
5290 mswitches
[n_mswitches
].rep_len
= 0;
5297 for (i
= 0; i
< n_mswitches
; i
++)
5298 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
5305 default_arg (p
, len
)
5311 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+1)
5313 while (*start
== ' ' || *start
== '\t')
5319 for (end
= start
+1; *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
5322 if ((end
- start
) == len
&& strncmp (p
, start
, len
) == 0)
5332 /* Work out the subdirectory to use based on the
5333 options. The format of multilib_select is a list of elements.
5334 Each element is a subdirectory name followed by a list of options
5335 followed by a semicolon. gcc will consider each line in turn. If
5336 none of the options beginning with an exclamation point are
5337 present, and all of the other options are present, that
5338 subdirectory will be used. */
5343 char *p
= multilib_select
;
5345 char *this_path
, *this_arg
;
5351 /* Ignore newlines. */
5358 /* Get the initial path. */
5366 this_path_len
= p
- this_path
;
5368 /* Check the arguments. */
5383 while (*p
!= ' ' && *p
!= ';')
5390 if (*this_arg
!= '!')
5398 /* If this is a default argument, we can just ignore it.
5399 This is true even if this_arg begins with '!'. Beginning
5400 with '!' does not mean that this argument is necessarily
5401 inappropriate for this library: it merely means that
5402 there is a more specific library which uses this
5403 argument. If this argument is a default, we need not
5404 consider that more specific library. */
5405 if (! default_arg (this_arg
, p
- this_arg
))
5407 ok
= used_arg (this_arg
, p
- this_arg
);
5418 if (this_path_len
!= 1
5419 || this_path
[0] != '.')
5421 multilib_dir
= xmalloc (this_path_len
+ 1);
5422 strncpy (multilib_dir
, this_path
, this_path_len
);
5423 multilib_dir
[this_path_len
] = '\0';
5432 /* Print out the multiple library subdirectory selection
5433 information. This prints out a series of lines. Each line looks
5434 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5435 required. Only the desired options are printed out, the negative
5436 matches. The options are print without a leading dash. There are
5437 no spaces to make it easy to use the information in the shell.
5438 Each subdirectory is printed only once. This assumes the ordering
5439 generated by the genmultilib script. */
5442 print_multilib_info ()
5444 char *p
= multilib_select
;
5445 char *last_path
= 0, *this_path
;
5447 int last_path_len
= 0;
5451 /* Ignore newlines. */
5458 /* Get the initial path. */
5467 /* If this is a duplicate, skip it. */
5468 skip
= (last_path
!= 0 && p
- this_path
== last_path_len
5469 && ! strncmp (last_path
, this_path
, last_path_len
));
5471 last_path
= this_path
;
5472 last_path_len
= p
- this_path
;
5474 /* If this directory requires any default arguments, we can skip
5475 it. We will already have printed a directory identical to
5476 this one which does not require that default argument. */
5494 while (*q
!= ' ' && *q
!= ';')
5502 && default_arg (arg
, q
- arg
))
5517 for (p1
= last_path
; p1
< p
; p1
++)
5536 use_arg
= *p
!= '!';
5541 while (*p
!= ' ' && *p
!= ';')
5556 /* If there are extra options, print them now */
5557 if (multilib_extra
&& *multilib_extra
)
5559 int print_at
= TRUE
;
5562 for (q
= multilib_extra
; *q
!= '\0'; q
++)