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". */
39 #include "gansidecl.h"
43 /* ??? Need to find a GCC header to put these in. */
44 extern int pexecute
PROTO ((const char *, char * const *, const char *,
45 const char *, char **, char **, int));
46 extern int pwait
PROTO ((int, int *, int));
47 extern char *update_path
PROTO((char *, char *));
48 extern void set_std_prefix
PROTO((char *, int));
49 /* Flag arguments to pexecute. */
50 #define PEXECUTE_FIRST 1
51 #define PEXECUTE_LAST 2
52 #define PEXECUTE_SEARCH 4
53 #define PEXECUTE_VERBOSE 8
56 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
59 #define WTERMSIG(S) ((S) & 0x7f)
62 #define WIFEXITED(S) (((S) & 0xff) == 0)
65 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
69 #define exit __posix_exit
76 /* Test if something is a normal file. */
78 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
81 /* Test if something is a directory. */
83 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
86 /* By default there is no special suffix for executables. */
87 #ifdef EXECUTABLE_SUFFIX
88 #define HAVE_EXECUTABLE_SUFFIX
90 #define EXECUTABLE_SUFFIX ""
93 /* By default, the suffix for object files is ".o". */
95 #define HAVE_OBJECT_SUFFIX
97 #define OBJECT_SUFFIX ".o"
100 /* By default, colon separates directories in a path. */
101 #ifndef PATH_SEPARATOR
102 #define PATH_SEPARATOR ':'
105 #ifndef DIR_SEPARATOR
106 #define DIR_SEPARATOR '/'
109 static char dir_separator_str
[] = {DIR_SEPARATOR
, 0};
111 #define obstack_chunk_alloc xmalloc
112 #define obstack_chunk_free free
114 #ifndef GET_ENV_PATH_LIST
115 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
118 extern char *my_strerror
PROTO((int));
121 #define kill(p,s) raise(s)
124 /* If a stage of compilation returns an exit status >= 1,
125 compilation of that file ceases. */
127 #define MIN_FATAL_STATUS 1
129 /* Flag saying to print the directories gcc will search through looking for
130 programs, libraries, etc. */
132 static int print_search_dirs
;
134 /* Flag saying to print the full filename of this file
135 as found through our usual search mechanism. */
137 static char *print_file_name
= NULL
;
139 /* As print_file_name, but search for executable file. */
141 static char *print_prog_name
= NULL
;
143 /* Flag saying to print the relative path we'd use to
144 find libgcc.a given the current compiler flags. */
146 static int print_multi_directory
;
148 /* Flag saying to print the list of subdirectories and
149 compiler flags used to select them in a standard form. */
151 static int print_multi_lib
;
153 /* Flag saying to print the command line options understood by gcc and its
156 static int print_help_list
;
158 /* Flag indicating whether we should print the command and arguments */
160 static int verbose_flag
;
162 /* Nonzero means write "temp" files in source directory
163 and use the source file's name in them, and don't delete them. */
165 static int save_temps_flag
;
167 /* The compiler version. */
169 static char *compiler_version
;
171 /* The target version specified with -V */
173 static char *spec_version
= DEFAULT_TARGET_VERSION
;
175 /* The target machine specified with -b. */
177 static char *spec_machine
= DEFAULT_TARGET_MACHINE
;
179 /* Nonzero if cross-compiling.
180 When -b is used, the value comes from the `specs' file. */
183 static char *cross_compile
= "1";
185 static char *cross_compile
= "0";
188 /* The number of errors that have occurred; the link phase will not be
189 run if this is non-zero. */
190 static int error_count
= 0;
192 /* This is the obstack which we use to allocate many strings. */
194 static struct obstack obstack
;
196 /* This is the obstack to build an environment variable to pass to
197 collect2 that describes all of the relevant switches of what to
198 pass the compiler in building the list of pointers to constructors
201 static struct obstack collect_obstack
;
203 extern char *version_string
;
205 /* Forward declaration for prototypes. */
208 static void init_spec
PROTO((void));
209 static void read_specs
PROTO((char *, int));
210 static void set_spec
PROTO((char *, char *));
211 static struct compiler
*lookup_compiler
PROTO((char *, size_t, char *));
212 static char *build_search_list
PROTO((struct path_prefix
*, char *, int));
213 static void putenv_from_prefixes
PROTO((struct path_prefix
*, char *));
214 static char *find_a_file
PROTO((struct path_prefix
*, char *, int));
215 static void add_prefix
PROTO((struct path_prefix
*, char *, char *,
217 static char *skip_whitespace
PROTO((char *));
218 static void record_temp_file
PROTO((char *, int, int));
219 static void delete_if_ordinary
PROTO((char *));
220 static void delete_temp_files
PROTO((void));
221 static void delete_failure_queue
PROTO((void));
222 static void clear_failure_queue
PROTO((void));
223 static int check_live_switch
PROTO((int, int));
224 static char *handle_braces
PROTO((char *));
225 static char *save_string
PROTO((char *, int));
226 static char *concat
PVPROTO((char *, ...));
227 extern int do_spec
PROTO((char *));
228 static int do_spec_1
PROTO((char *, int, char *));
229 static char *find_file
PROTO((char *));
230 static int is_directory
PROTO((char *, char *, int));
231 static void validate_switches
PROTO((char *));
232 static void validate_all_switches
PROTO((void));
233 static void give_switch
PROTO((int, int, int));
234 static int used_arg
PROTO((char *, int));
235 static int default_arg
PROTO((char *, int));
236 static void set_multilib_dir
PROTO((void));
237 static void print_multilib_info
PROTO((void));
238 static void pfatal_with_name
PROTO((char *));
239 static void perror_with_name
PROTO((char *));
240 static void pfatal_pexecute
PROTO((char *, char *));
241 static void fatal
PVPROTO((char *, ...));
242 static void error
PVPROTO((char *, ...));
243 static void display_help
PROTO((void));
249 #ifdef LANG_SPECIFIC_DRIVER
250 /* Called before processing to change/add/remove arguments. */
251 extern void lang_specific_driver
PROTO ((void (*) PVPROTO((char *, ...)), int *, char ***, int *));
253 /* Called before linking. Returns 0 on success and -1 on failure. */
254 extern int lang_specific_pre_link ();
256 /* Number of extra output files that lang_specific_pre_link may generate. */
257 extern int lang_specific_extra_outfiles
;
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.
279 substitute a file name that has suffix SUFFIX and is chosen
280 once per compilation, and mark the argument a la %d. To reduce
281 exposure to denial-of-service attacks, the file name is now
282 chosen in a way that is hard to predict even when previously
283 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
284 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
285 the regexp "[.A-Za-z]*" or the special string "%O", which is
286 treated exactly as if %O had been pre-processed. Previously, %g
287 was simply substituted with a file name chosen once per compilation,
288 without regard to any appended suffix (which was therefore treated
289 just like ordinary text), making such attacks more likely to succeed.
291 like %g, but generates a new temporary file name even if %uSUFFIX
294 substitutes the last file name generated with %uSUFFIX, generating a
295 new one if there is no such last file name. In the absence of any
296 %uSUFFIX, this is just like %gSUFFIX, except they don't share
297 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
298 would involve the generation of two distinct file names, one
299 for each `%g.s' and another for each `%U.s'. Previously, %U was
300 simply substituted with a file name chosen for the previous %u,
301 without regard to any appended suffix.
302 %d marks the argument containing or following the %d as a
303 temporary file name, so that that file will be deleted if CC exits
304 successfully. Unlike %g, this contributes no text to the argument.
305 %w marks the argument containing or following the %w as the
306 "output file" of this compilation. This puts the argument
307 into the sequence of arguments that %o will substitute later.
309 like %{...} but mark last argument supplied within
310 as a file to be deleted on failure.
311 %o substitutes the names of all the output files, with spaces
312 automatically placed around them. You should write spaces
313 around the %o as well or the results are undefined.
314 %o is for use in the specs for running the linker.
315 Input files whose names have no recognized suffix are not compiled
316 at all, but they are included among the output files, so they will
318 %O substitutes the suffix for object files. Note that this is
319 handled specially when it immediately follows %g, %u, or %U,
320 because of the need for those to form complete file names. The
321 handling is such that %O is treated exactly as if it had already
322 been substituted, except that %g, %u, and %U do not currently
323 support additional SUFFIX characters following %O as they would
324 following, for example, `.o'.
325 %p substitutes the standard macro predefinitions for the
326 current target machine. Use this when running cpp.
327 %P like %p, but puts `__' before and after the name of each macro.
328 (Except macros that already have __.)
330 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
331 %s current argument is the name of a library or startup file of some sort.
332 Search for that file in a standard list of directories
333 and substitute the full name found.
334 %eSTR Print STR as an error message. STR is terminated by a newline.
335 Use this when inconsistent options are detected.
336 %x{OPTION} Accumulate an option for %X.
337 %X Output the accumulated linker options specified by compilations.
338 %Y Output the accumulated assembler options specified by compilations.
339 %Z Output the accumulated preprocessor options specified by compilations.
340 %v1 Substitute the major version number of GCC.
341 (For version 2.5.n, this is 2.)
342 %v2 Substitute the minor version number of GCC.
343 (For version 2.5.n, this is 5.)
344 %a process ASM_SPEC as a spec.
345 This allows config.h to specify part of the spec for running as.
346 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
347 used here. This can be used to run a post-processor after the
348 assembler has done its job.
349 %D Dump out a -L option for each directory in startfile_prefixes.
350 If multilib_dir is set, extra entries are generated with it affixed.
351 %l process LINK_SPEC as a spec.
352 %L process LIB_SPEC as a spec.
353 %G process LIBGCC_SPEC as a spec.
354 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
355 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
356 %c process SIGNED_CHAR_SPEC as a spec.
357 %C process CPP_SPEC as a spec. A capital C is actually used here.
358 %1 process CC1_SPEC as a spec.
359 %2 process CC1PLUS_SPEC as a spec.
360 %| output "-" if the input for the current command is coming from a pipe.
361 %* substitute the variable part of a matched option. (See below.)
362 Note that each comma in the substituted string is replaced by
364 %{S} substitutes the -S switch, if that switch was given to CC.
365 If that switch was not specified, this substitutes nothing.
366 Here S is a metasyntactic variable.
367 %{S*} substitutes all the switches specified to CC whose names start
368 with -S. This is used for -o, -D, -I, etc; switches that take
369 arguments. CC considers `-o foo' as being one switch whose
370 name starts with `o'. %{o*} would substitute this text,
371 including the space; thus, two arguments would be generated.
372 %{^S*} likewise, but don't put a blank between a switch and any args.
373 %{S*:X} substitutes X if one or more switches whose names start with -S are
374 specified to CC. Note that the tail part of the -S option
375 (i.e. the part matched by the `*') will be substituted for each
376 occurrence of %* within X.
377 %{S:X} substitutes X, but only if the -S switch was given to CC.
378 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
379 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
380 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
381 %{.S:X} substitutes X, but only if processing a file with suffix S.
382 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
383 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
384 combined with ! and . as above binding stronger than the OR.
385 %(Spec) processes a specification defined in a specs file as *Spec:
386 %[Spec] as above, but put __ around -D arguments
388 The conditional text X in a %{S:X} or %{!S:X} construct may contain
389 other nested % constructs or spaces, or even newlines. They are
390 processed as usual, as described above.
392 The -O, -f, -m, and -W switches are handled specifically in these
393 constructs. If another value of -O or the negated form of a -f, -m, or
394 -W switch is found later in the command line, the earlier switch
395 value is ignored, except with {S*} where S is just one letter; this
396 passes all matching options.
398 The character | at the beginning of the predicate text is used to indicate
399 that a command should be piped to the following command, but only if -pipe
402 Note that it is built into CC which switches take arguments and which
403 do not. You might think it would be useful to generalize this to
404 allow each compiler's spec to say which switches take arguments. But
405 this cannot be done in a consistent fashion. CC cannot even decide
406 which input files have been specified without knowing which switches
407 take arguments, and it must know which input files to compile in order
408 to tell which compilers to run.
410 CC also knows implicitly that arguments starting in `-l' are to be
411 treated as compiler output files, and passed to the linker in their
412 proper position among the other output files. */
414 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
416 /* config.h can define ASM_SPEC to provide extra args to the assembler
417 or extra switch-translations. */
422 /* config.h can define ASM_FINAL_SPEC to run a post processor after
423 the assembler has run. */
424 #ifndef ASM_FINAL_SPEC
425 #define ASM_FINAL_SPEC ""
428 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
429 or extra switch-translations. */
434 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
435 or extra switch-translations. */
440 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
441 or extra switch-translations. */
443 #define CC1PLUS_SPEC ""
446 /* config.h can define LINK_SPEC to provide extra args to the linker
447 or extra switch-translations. */
452 /* config.h can define LIB_SPEC to override the default libraries. */
454 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
457 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
460 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
461 /* Have gcc do the search for libgcc.a. */
462 #define LIBGCC_SPEC "libgcc.a%s"
464 #define LIBGCC_SPEC "-lgcc"
468 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
469 #ifndef STARTFILE_SPEC
470 #define STARTFILE_SPEC \
471 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
474 /* config.h can define SWITCHES_NEED_SPACES to control which options
475 require spaces between the option and the argument. */
476 #ifndef SWITCHES_NEED_SPACES
477 #define SWITCHES_NEED_SPACES ""
480 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
482 #define ENDFILE_SPEC ""
485 /* This spec is used for telling cpp whether char is signed or not. */
486 #ifndef SIGNED_CHAR_SPEC
487 /* Use #if rather than ?:
488 because MIPS C compiler rejects like ?: in initializers. */
489 #if DEFAULT_SIGNED_CHAR
490 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
492 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
497 #define LINKER_NAME "collect2"
500 static char *cpp_spec
= CPP_SPEC
;
501 static char *cpp_predefines
= CPP_PREDEFINES
;
502 static char *cc1_spec
= CC1_SPEC
;
503 static char *cc1plus_spec
= CC1PLUS_SPEC
;
504 static char *signed_char_spec
= SIGNED_CHAR_SPEC
;
505 static char *asm_spec
= ASM_SPEC
;
506 static char *asm_final_spec
= ASM_FINAL_SPEC
;
507 static char *link_spec
= LINK_SPEC
;
508 static char *lib_spec
= LIB_SPEC
;
509 static char *libgcc_spec
= LIBGCC_SPEC
;
510 static char *endfile_spec
= ENDFILE_SPEC
;
511 static char *startfile_spec
= STARTFILE_SPEC
;
512 static char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
513 static char *linker_name_spec
= LINKER_NAME
;
515 /* Some compilers have limits on line lengths, and the multilib_select
516 and/or multilib_matches strings can be very long, so we build them at
518 static struct obstack multilib_obstack
;
519 static char *multilib_select
;
520 static char *multilib_matches
;
521 static char *multilib_defaults
;
522 #include "multilib.h"
524 /* Check whether a particular argument is a default argument. */
526 #ifndef MULTILIB_DEFAULTS
527 #define MULTILIB_DEFAULTS { "" }
530 static char *multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
533 struct user_specs
*next
;
537 static struct user_specs
*user_specs_head
, *user_specs_tail
;
539 /* This defines which switch letters take arguments. */
541 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
542 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
543 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
544 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
545 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
546 || (CHAR) == 'B' || (CHAR) == 'b')
548 #ifndef SWITCH_TAKES_ARG
549 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
552 /* This defines which multi-letter switches take arguments. */
554 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
555 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
556 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
557 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
558 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
559 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
560 || !strcmp (STR, "isystem") || !strcmp (STR, "specs"))
562 #ifndef WORD_SWITCH_TAKES_ARG
563 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
567 #ifdef HAVE_EXECUTABLE_SUFFIX
568 /* This defines which switches stop a full compilation. */
569 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
570 ((CHAR) == 'c' || (CHAR) == 'S')
572 #ifndef SWITCH_CURTAILS_COMPILATION
573 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
574 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
578 /* Record the mapping from file suffixes for compilation specs. */
582 char *suffix
; /* Use this compiler for input files
583 whose names end in this suffix. */
585 char *spec
[4]; /* To use this compiler, concatenate these
586 specs and pass to do_spec. */
589 /* Pointer to a vector of `struct compiler' that gives the spec for
590 compiling a file, based on its suffix.
591 A file that does not end in any of these suffixes will be passed
592 unchanged to the loader and nothing else will be done to it.
594 An entry containing two 0s is used to terminate the vector.
596 If multiple entries match a file, the last matching one is used. */
598 static struct compiler
*compilers
;
600 /* Number of entries in `compilers', not counting the null terminator. */
602 static int n_compilers
;
604 /* The default list of file name suffixes and their compilation specs. */
606 static struct compiler default_compilers
[] =
608 /* Add lists of suffixes of known languages here. If those languages
609 were not present when we built the driver, we will hit these copies
610 and be given a more meaningful error than "file not used since
611 linking is not done". */
612 {".cc", {"#C++"}}, {".cxx", {"#C++"}}, {".cpp", {"#C++"}}, {".c++", {"#C++"}},
613 {".C", {"#C++"}}, {".ads", {"#Ada"}}, {".adb", {"#Ada"}}, {".ada", {"#Ada"}},
614 {".f", {"#Fortran"}}, {".for", {"#Fortran"}}, {".F", {"#Fortran"}},
615 {".fpp", {"#Fortran"}},
616 {".p", {"#Pascal"}}, {".pas", {"#Pascal"}},
617 /* Next come the entries for C. */
622 "%{E|M|MM:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
623 %{C:%{!E:%eGNU C does not support -C without using -E}}\
624 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
625 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
626 %{ansi:-trigraphs -D__STRICT_ANSI__}\
627 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
628 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
629 %{traditional} %{ftraditional:-traditional}\
630 %{traditional-cpp:-traditional}\
631 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
632 %i %{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}}\n}\
633 %{!E:%{!M:%{!MM:cc1 %i %1 \
634 -lang-c%{ansi:89} %{nostdinc*} %{A*} %{I*} %I\
635 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
636 %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
637 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
638 %{ansi:-trigraphs -D__STRICT_ANSI__}\
639 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
640 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
641 %{H} %C %{D*} %{U*} %{i*} %Z\
642 %{ftraditional:-traditional}\
643 %{traditional-cpp:-traditional}\
644 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
647 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
648 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
649 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
651 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
652 %{!pipe:%g.s} %A\n }}}}"
654 #else /* ! USE_CPPLIB */
655 "cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
656 %{C:%{!E:%eGNU C does not support -C without using -E}}\
657 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
658 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
659 %{ansi:-trigraphs -D__STRICT_ANSI__}\
660 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
661 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
662 %{traditional} %{ftraditional:-traditional}\
663 %{traditional-cpp:-traditional}\
664 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
665 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
666 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
667 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
668 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
669 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
672 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
673 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
675 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
676 %{!pipe:%g.s} %A\n }}}}"
678 #endif /* ! USE_CPPLIB */
680 {"%{E:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
681 %{C:%{!E:%eGNU C does not support -C without using -E}}\
682 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
683 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
684 %{ansi:-trigraphs -D__STRICT_ANSI__}\
685 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
686 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
687 %{traditional} %{ftraditional:-traditional}\
688 %{traditional-cpp:-traditional}\
689 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
691 %{!E:%e-E required when input is from standard input}"}},
692 {".m", {"@objective-c"}},
694 {"cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
695 %{C:%{!E:%eGNU C does not support -C without using -E}}\
696 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
697 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
698 %{ansi:-trigraphs -D__STRICT_ANSI__}\
699 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
700 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
701 %{traditional} %{ftraditional:-traditional}\
702 %{traditional-cpp:-traditional}\
703 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
704 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
705 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
706 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a*}\
707 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
708 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
709 -lang-objc %{gen-decls} \
711 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
712 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
714 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
715 %{!pipe:%g.s} %A\n }}}}"}},
716 {".h", {"@c-header"}},
718 {"%{!E:%eCompilation of header file requested} \
719 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
720 %{C:%{!E:%eGNU C does not support -C without using -E}}\
721 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
722 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
723 %{ansi:-trigraphs -D__STRICT_ANSI__}\
724 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
725 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
726 %{traditional} %{ftraditional:-traditional}\
727 %{traditional-cpp:-traditional}\
728 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
730 {".i", {"@cpp-output"}},
732 {"%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
733 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
734 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
736 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
737 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
739 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
740 %{!pipe:%g.s} %A\n }}}}"}},
741 {".s", {"@assembler"}},
743 {"%{!M:%{!MM:%{!E:%{!S:as %a %Y\
744 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
746 {".S", {"@assembler-with-cpp"}},
747 {"@assembler-with-cpp",
748 {"cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
749 %{C:%{!E:%eGNU C does not support -C without using -E}}\
750 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
751 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
752 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
753 %{traditional} %{ftraditional:-traditional}\
754 %{traditional-cpp:-traditional}\
755 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
756 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
757 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
758 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
759 %{!pipe:%g.s} %A\n }}}}"}},
761 /* Mark end of table */
765 /* Number of elements in default_compilers, not counting the terminator. */
767 static int n_default_compilers
768 = (sizeof default_compilers
/ sizeof (struct compiler
)) - 1;
770 /* Here is the spec for running the linker, after compiling all files. */
772 /* -u* was put back because both BSD and SysV seem to support it. */
773 /* %{static:} simply prevents an error message if the target machine
774 doesn't handle -static. */
775 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
776 scripts which exist in user specified directories, or in standard
778 #ifdef LINK_COMMAND_SPEC
779 /* Provide option to override link_command_spec from machine specific
780 configuration files. */
781 static char *link_command_spec
=
784 #ifdef LINK_LIBGCC_SPECIAL
785 /* Don't generate -L options. */
786 static char *link_command_spec
= "\
788 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
789 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
790 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
792 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
793 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
798 static char *link_command_spec
= "\
800 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
801 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
802 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
803 %{static:} %{L*} %D %o\
804 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
805 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
811 /* A vector of options to give to the linker.
812 These options are accumulated by %x,
813 and substituted into the linker command with %X. */
814 static int n_linker_options
;
815 static char **linker_options
;
817 /* A vector of options to give to the assembler.
818 These options are accumulated by -Wa,
819 and substituted into the assembler command with %Y. */
820 static int n_assembler_options
;
821 static char **assembler_options
;
823 /* A vector of options to give to the preprocessor.
824 These options are accumulated by -Wp,
825 and substituted into the preprocessor command with %Z. */
826 static int n_preprocessor_options
;
827 static char **preprocessor_options
;
829 /* Define how to map long options into short ones. */
831 /* This structure describes one mapping. */
834 /* The long option's name. */
836 /* The equivalent short option. */
838 /* Argument info. A string of flag chars; NULL equals no options.
839 a => argument required.
840 o => argument optional.
841 j => join argument to equivalent, making one word.
842 * => require other text after NAME as an argument. */
846 /* This is the table of mappings. Mappings are tried sequentially
847 for each option encountered; the first one that matches, wins. */
849 struct option_map option_map
[] =
851 {"--all-warnings", "-Wall", 0},
852 {"--ansi", "-ansi", 0},
853 {"--assemble", "-S", 0},
854 {"--assert", "-A", "a"},
855 {"--comments", "-C", 0},
856 {"--compile", "-c", 0},
857 {"--debug", "-g", "oj"},
858 {"--define-macro", "-D", "aj"},
859 {"--dependencies", "-M", 0},
860 {"--dump", "-d", "a"},
861 {"--dumpbase", "-dumpbase", "a"},
862 {"--entry", "-e", 0},
863 {"--extra-warnings", "-W", 0},
864 {"--for-assembler", "-Wa", "a"},
865 {"--for-linker", "-Xlinker", "a"},
866 {"--force-link", "-u", "a"},
867 {"--imacros", "-imacros", "a"},
868 {"--include", "-include", "a"},
869 {"--include-barrier", "-I-", 0},
870 {"--include-directory", "-I", "aj"},
871 {"--include-directory-after", "-idirafter", "a"},
872 {"--include-prefix", "-iprefix", "a"},
873 {"--include-with-prefix", "-iwithprefix", "a"},
874 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
875 {"--include-with-prefix-after", "-iwithprefix", "a"},
876 {"--language", "-x", "a"},
877 {"--library-directory", "-L", "a"},
878 {"--machine", "-m", "aj"},
879 {"--machine-", "-m", "*j"},
880 {"--no-line-commands", "-P", 0},
881 {"--no-precompiled-includes", "-noprecomp", 0},
882 {"--no-standard-includes", "-nostdinc", 0},
883 {"--no-standard-libraries", "-nostdlib", 0},
884 {"--no-warnings", "-w", 0},
885 {"--optimize", "-O", "oj"},
886 {"--output", "-o", "a"},
887 {"--pedantic", "-pedantic", 0},
888 {"--pedantic-errors", "-pedantic-errors", 0},
889 {"--pipe", "-pipe", 0},
890 {"--prefix", "-B", "a"},
891 {"--preprocess", "-E", 0},
892 {"--print-search-dirs", "-print-search-dirs", 0},
893 {"--print-file-name", "-print-file-name=", "aj"},
894 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
895 {"--print-missing-file-dependencies", "-MG", 0},
896 {"--print-multi-lib", "-print-multi-lib", 0},
897 {"--print-multi-directory", "-print-multi-directory", 0},
898 {"--print-prog-name", "-print-prog-name=", "aj"},
899 {"--profile", "-p", 0},
900 {"--profile-blocks", "-a", 0},
901 {"--quiet", "-q", 0},
902 {"--save-temps", "-save-temps", 0},
903 {"--shared", "-shared", 0},
904 {"--silent", "-q", 0},
905 {"--specs", "-specs=", "aj"},
906 {"--static", "-static", 0},
907 {"--symbolic", "-symbolic", 0},
908 {"--target", "-b", "a"},
909 {"--trace-includes", "-H", 0},
910 {"--traditional", "-traditional", 0},
911 {"--traditional-cpp", "-traditional-cpp", 0},
912 {"--trigraphs", "-trigraphs", 0},
913 {"--undefine-macro", "-U", "aj"},
914 {"--use-version", "-V", "a"},
915 {"--user-dependencies", "-MM", 0},
916 {"--verbose", "-v", 0},
917 {"--version", "-dumpversion", 0},
918 {"--warn-", "-W", "*j"},
919 {"--write-dependencies", "-MD", 0},
920 {"--write-user-dependencies", "-MMD", 0},
924 /* Translate the options described by *ARGCP and *ARGVP.
925 Make a new vector and store it back in *ARGVP,
926 and store its length in *ARGVC. */
929 translate_options (argcp
, argvp
)
935 char **argv
= *argvp
;
936 char **newv
= (char **) xmalloc ((argc
+ 2) * 2 * sizeof (char *));
940 newv
[newindex
++] = argv
[i
++];
944 /* Translate -- options. */
945 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
947 /* Find a mapping that applies to this option. */
948 for (j
= 0; j
< sizeof (option_map
) / sizeof (option_map
[0]); j
++)
950 size_t optlen
= strlen (option_map
[j
].name
);
951 size_t arglen
= strlen (argv
[i
]);
952 size_t complen
= arglen
> optlen
? optlen
: arglen
;
953 char *arginfo
= option_map
[j
].arg_info
;
958 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
965 k
< sizeof (option_map
) / sizeof (option_map
[0]);
967 if (strlen (option_map
[k
].name
) >= arglen
968 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
970 error ("Ambiguous abbreviation %s", argv
[i
]);
974 if (k
!= sizeof (option_map
) / sizeof (option_map
[0]))
980 /* If the option has an argument, accept that. */
981 if (argv
[i
][optlen
] == '=')
982 arg
= argv
[i
] + optlen
+ 1;
984 /* If this mapping requires extra text at end of name,
985 accept that as "argument". */
986 else if (index (arginfo
, '*') != 0)
987 arg
= argv
[i
] + optlen
;
989 /* Otherwise, extra text at end means mismatch.
990 Try other mappings. */
995 else if (index (arginfo
, '*') != 0)
997 error ("Incomplete `%s' option", option_map
[j
].name
);
1001 /* Handle arguments. */
1002 if (index (arginfo
, 'a') != 0)
1008 error ("Missing argument to `%s' option",
1009 option_map
[j
].name
);
1016 else if (index (arginfo
, '*') != 0)
1018 else if (index (arginfo
, 'o') == 0)
1021 error ("Extraneous argument to `%s' option",
1022 option_map
[j
].name
);
1026 /* Store the translation as one argv elt or as two. */
1027 if (arg
!= 0 && index (arginfo
, 'j') != 0)
1028 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1032 newv
[newindex
++] = option_map
[j
].equivalent
;
1033 newv
[newindex
++] = arg
;
1036 newv
[newindex
++] = option_map
[j
].equivalent
;
1044 /* Handle old-fashioned options--just copy them through,
1045 with their arguments. */
1046 else if (argv
[i
][0] == '-')
1048 char *p
= argv
[i
] + 1;
1052 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1053 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1054 else if (WORD_SWITCH_TAKES_ARG (p
))
1055 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1056 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
1059 else if (! strcmp (p
, "Xlinker"))
1062 /* Watch out for an option at the end of the command line that
1063 is missing arguments, and avoid skipping past the end of the
1065 if (nskip
+ i
> argc
)
1070 newv
[newindex
++] = argv
[i
++];
1075 /* Ordinary operands, or +e options. */
1076 newv
[newindex
++] = argv
[i
++];
1089 #ifdef HAVE_STRERROR
1095 static char buffer
[30];
1097 return "cannot access";
1099 if (e
> 0 && e
< sys_nerr
)
1100 return sys_errlist
[e
];
1102 sprintf (buffer
, "Unknown error %d", e
);
1113 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1114 be considered whitespace. */
1115 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1117 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1121 while (*p
!= '\n') p
++;
1131 /* Structure to keep track of the specs that have been defined so far.
1132 These are accessed using %(specname) or %[specname] in a compiler
1137 /* The following 2 fields must be first */
1138 /* to allow EXTRA_SPECS to be initialized */
1139 char *name
; /* name of the spec. */
1140 char *ptr
; /* available ptr if no static pointer */
1142 /* The following fields are not initialized */
1143 /* by EXTRA_SPECS */
1144 char **ptr_spec
; /* pointer to the spec itself. */
1145 struct spec_list
*next
; /* Next spec in linked list. */
1146 int name_len
; /* length of the name */
1147 int alloc_p
; /* whether string was allocated */
1150 #define INIT_STATIC_SPEC(NAME,PTR) \
1151 { NAME, NULL_PTR, PTR, (struct spec_list *)0, sizeof (NAME)-1, 0 }
1153 /* List of statically defined specs */
1154 static struct spec_list static_specs
[] = {
1155 INIT_STATIC_SPEC ("asm", &asm_spec
),
1156 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1157 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1158 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1159 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1160 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1161 INIT_STATIC_SPEC ("link", &link_spec
),
1162 INIT_STATIC_SPEC ("lib", &lib_spec
),
1163 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1164 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1165 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1166 INIT_STATIC_SPEC ("signed_char", &signed_char_spec
),
1167 INIT_STATIC_SPEC ("predefines", &cpp_predefines
),
1168 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1169 INIT_STATIC_SPEC ("version", &compiler_version
),
1170 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1171 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1172 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1173 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1174 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1177 #ifdef EXTRA_SPECS /* additional specs needed */
1178 static struct spec_list extra_specs
[] = { EXTRA_SPECS
};
1181 /* List of dynamically allocates specs that have been defined so far. */
1183 static struct spec_list
*specs
= (struct spec_list
*)0;
1186 /* Initialize the specs lookup routines. */
1191 struct spec_list
*next
= (struct spec_list
*)0;
1192 struct spec_list
*sl
= (struct spec_list
*)0;
1196 return; /* already initialized */
1199 fprintf (stderr
, "Using builtin specs.\n");
1202 for (i
= (sizeof (extra_specs
) / sizeof (extra_specs
[0])) - 1; i
>= 0; i
--)
1204 sl
= &extra_specs
[i
];
1206 sl
->name_len
= strlen (sl
->name
);
1207 sl
->ptr_spec
= &sl
->ptr
;
1212 for (i
= (sizeof (static_specs
) / sizeof (static_specs
[0])) - 1; i
>= 0; i
--)
1214 sl
= &static_specs
[i
];
1223 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1224 removed; If the spec starts with a + then SPEC is added to the end of the
1228 set_spec (name
, spec
)
1232 struct spec_list
*sl
;
1234 int name_len
= strlen (name
);
1237 /* If this is the first call, initialize the statically allocated specs */
1240 struct spec_list
*next
= (struct spec_list
*)0;
1241 for (i
= (sizeof (static_specs
) / sizeof (static_specs
[0])) - 1;
1244 sl
= &static_specs
[i
];
1251 /* See if the spec already exists */
1252 for (sl
= specs
; sl
; sl
= sl
->next
)
1253 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1258 /* Not found - make it */
1259 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1260 sl
->name
= save_string (name
, strlen (name
));
1261 sl
->name_len
= name_len
;
1262 sl
->ptr_spec
= &sl
->ptr
;
1264 *(sl
->ptr_spec
) = "";
1269 old_spec
= *(sl
->ptr_spec
);
1270 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE (spec
[1]))
1271 ? concat (old_spec
, spec
+ 1, NULL_PTR
)
1272 : save_string (spec
, strlen (spec
)));
1276 fprintf (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1279 /* Free the old spec */
1280 if (old_spec
&& sl
->alloc_p
)
1286 /* Accumulate a command (program name and args), and run it. */
1288 /* Vector of pointers to arguments in the current line of specifications. */
1290 static char **argbuf
;
1292 /* Number of elements allocated in argbuf. */
1294 static int argbuf_length
;
1296 /* Number of elements in argbuf currently in use (containing args). */
1298 static int argbuf_index
;
1300 /* We want this on by default all the time now. */
1301 #define MKTEMP_EACH_FILE
1303 #ifdef MKTEMP_EACH_FILE
1305 extern char *make_temp_file
PROTO((char *));
1307 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1310 static struct temp_name
{
1311 char *suffix
; /* suffix associated with the code. */
1312 int length
; /* strlen (suffix). */
1313 int unique
; /* Indicates whether %g or %u/%U was used. */
1314 char *filename
; /* associated filename. */
1315 int filename_length
; /* strlen (filename). */
1316 struct temp_name
*next
;
1319 extern char *choose_temp_base
PROTO((void));
1323 /* Number of commands executed so far. */
1325 static int execution_count
;
1327 /* Number of commands that exited with a signal. */
1329 static int signal_count
;
1331 /* Name with which this program was invoked. */
1333 static char *programname
;
1335 /* Structures to keep track of prefixes to try when looking for files. */
1339 char *prefix
; /* String to prepend to the path. */
1340 struct prefix_list
*next
; /* Next in linked list. */
1341 int require_machine_suffix
; /* Don't use without machine_suffix. */
1342 /* 2 means try both machine_suffix and just_machine_suffix. */
1343 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1348 struct prefix_list
*plist
; /* List of prefixes to try */
1349 int max_len
; /* Max length of a prefix in PLIST */
1350 char *name
; /* Name of this list (used in config stuff) */
1353 /* List of prefixes to try when looking for executables. */
1355 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1357 /* List of prefixes to try when looking for startup (crt0) files. */
1359 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1361 /* List of prefixes to try when looking for include files. */
1363 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1365 /* Suffix to attach to directories searched for commands.
1366 This looks like `MACHINE/VERSION/'. */
1368 static char *machine_suffix
= 0;
1370 /* Suffix to attach to directories searched for commands.
1371 This is just `MACHINE/'. */
1373 static char *just_machine_suffix
= 0;
1375 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1377 static char *gcc_exec_prefix
;
1379 /* Default prefixes to attach to command names. */
1381 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1382 #undef MD_EXEC_PREFIX
1383 #undef MD_STARTFILE_PREFIX
1384 #undef MD_STARTFILE_PREFIX_1
1387 #ifndef STANDARD_EXEC_PREFIX
1388 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1389 #endif /* !defined STANDARD_EXEC_PREFIX */
1391 static char *standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1392 static char *standard_exec_prefix_1
= "/usr/lib/gcc/";
1393 #ifdef MD_EXEC_PREFIX
1394 static char *md_exec_prefix
= MD_EXEC_PREFIX
;
1397 #ifndef STANDARD_STARTFILE_PREFIX
1398 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1399 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1401 #ifdef MD_STARTFILE_PREFIX
1402 static char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1404 #ifdef MD_STARTFILE_PREFIX_1
1405 static char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1407 static char *standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1408 static char *standard_startfile_prefix_1
= "/lib/";
1409 static char *standard_startfile_prefix_2
= "/usr/lib/";
1411 #ifndef TOOLDIR_BASE_PREFIX
1412 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1414 static char *tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1415 static char *tooldir_prefix
;
1417 /* Subdirectory to use for locating libraries. Set by
1418 set_multilib_dir based on the compilation options. */
1420 static char *multilib_dir
;
1422 /* Clear out the vector of arguments (after a command is executed). */
1430 /* Add one argument to the vector at the end.
1431 This is done when a space is seen or at the end of the line.
1432 If DELETE_ALWAYS is nonzero, the arg is a filename
1433 and the file should be deleted eventually.
1434 If DELETE_FAILURE is nonzero, the arg is a filename
1435 and the file should be deleted if this compilation fails. */
1438 store_arg (arg
, delete_always
, delete_failure
)
1440 int delete_always
, delete_failure
;
1442 if (argbuf_index
+ 1 == argbuf_length
)
1444 = (char **) xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (char *));
1446 argbuf
[argbuf_index
++] = arg
;
1447 argbuf
[argbuf_index
] = 0;
1449 if (delete_always
|| delete_failure
)
1450 record_temp_file (arg
, delete_always
, delete_failure
);
1453 /* Read compilation specs from a file named FILENAME,
1454 replacing the default ones.
1456 A suffix which starts with `*' is a definition for
1457 one of the machine-specific sub-specs. The "suffix" should be
1458 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1459 The corresponding spec is stored in asm_spec, etc.,
1460 rather than in the `compilers' vector.
1462 Anything invalid in the file is a fatal error. */
1465 read_specs (filename
, main_p
)
1471 struct stat statbuf
;
1476 fprintf (stderr
, "Reading specs from %s\n", filename
);
1478 /* Open and stat the file. */
1479 desc
= open (filename
, O_RDONLY
, 0);
1481 pfatal_with_name (filename
);
1482 if (stat (filename
, &statbuf
) < 0)
1483 pfatal_with_name (filename
);
1485 /* Read contents of file into BUFFER. */
1486 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1487 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1489 pfatal_with_name (filename
);
1490 buffer
[readlen
] = 0;
1493 /* Scan BUFFER for specs, putting them in the vector. */
1499 char *in
, *out
, *p1
, *p2
, *p3
;
1501 /* Advance P in BUFFER to the next nonblank nocomment line. */
1502 p
= skip_whitespace (p
);
1506 /* Is this a special command that starts with '%'? */
1507 /* Don't allow this for the main specs file, since it would
1508 encourage people to overwrite it. */
1509 if (*p
== '%' && !main_p
)
1512 while (*p
&& *p
!= '\n')
1515 p
++; /* Skip '\n' */
1517 if (!strncmp (p1
, "%include", sizeof ("%include")-1)
1518 && (p1
[sizeof "%include" - 1] == ' '
1519 || p1
[sizeof "%include" - 1] == '\t'))
1523 p1
+= sizeof ("%include");
1524 while (*p1
== ' ' || *p1
== '\t')
1527 if (*p1
++ != '<' || p
[-2] != '>')
1528 fatal ("specs %%include syntax malformed after %d characters",
1532 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1533 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1536 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1537 && (p1
[sizeof "%include_noerr" - 1] == ' '
1538 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1542 p1
+= sizeof "%include_noerr";
1543 while (*p1
== ' ' || *p1
== '\t') p1
++;
1545 if (*p1
++ != '<' || p
[-2] != '>')
1546 fatal ("specs %%include syntax malformed after %d characters",
1550 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1552 read_specs (new_filename
, FALSE
);
1553 else if (verbose_flag
)
1554 fprintf (stderr
, "Could not find specs file %s\n", p1
);
1557 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1558 && (p1
[sizeof "%rename" - 1] == ' '
1559 || p1
[sizeof "%rename" - 1] == '\t'))
1562 struct spec_list
*sl
;
1564 /* Get original name */
1565 p1
+= sizeof "%rename";
1566 while (*p1
== ' ' || *p1
== '\t')
1569 if (! ISALPHA (*p1
))
1570 fatal ("specs %%rename syntax malformed after %d characters",
1574 while (*p2
&& !ISSPACE (*p2
))
1577 if (*p2
!= ' ' && *p2
!= '\t')
1578 fatal ("specs %%rename syntax malformed after %d characters",
1583 while (*p2
== ' ' || *p2
== '\t')
1586 if (! ISALPHA (*p2
))
1587 fatal ("specs %%rename syntax malformed after %d characters",
1590 /* Get new spec name */
1592 while (*p3
&& !ISSPACE (*p3
))
1596 fatal ("specs %%rename syntax malformed after %d characters",
1600 for (sl
= specs
; sl
; sl
= sl
->next
)
1601 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1605 fatal ("specs %s spec was not found to be renamed", p1
);
1607 if (strcmp (p1
, p2
) == 0)
1612 fprintf (stderr
, "rename spec %s to %s\n", p1
, p2
);
1614 fprintf (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
1618 set_spec (p2
, *(sl
->ptr_spec
));
1620 free (*(sl
->ptr_spec
));
1622 *(sl
->ptr_spec
) = "";
1627 fatal ("specs unknown %% command after %d characters",
1631 /* Find the colon that should end the suffix. */
1633 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1636 /* The colon shouldn't be missing. */
1638 fatal ("specs file malformed after %d characters", p1
- buffer
);
1640 /* Skip back over trailing whitespace. */
1642 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1645 /* Copy the suffix to a string. */
1646 suffix
= save_string (p
, p2
- p
);
1647 /* Find the next line. */
1648 p
= skip_whitespace (p1
+ 1);
1650 fatal ("specs file malformed after %d characters", p
- buffer
);
1653 /* Find next blank line or end of string. */
1654 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1657 /* Specs end at the blank line and do not include the newline. */
1658 spec
= save_string (p
, p1
- p
);
1661 /* Delete backslash-newline sequences from the spec. */
1666 if (in
[0] == '\\' && in
[1] == '\n')
1668 else if (in
[0] == '#')
1669 while (*in
&& *in
!= '\n')
1677 if (suffix
[0] == '*')
1679 if (! strcmp (suffix
, "*link_command"))
1680 link_command_spec
= spec
;
1682 set_spec (suffix
+ 1, spec
);
1686 /* Add this pair to the vector. */
1688 = ((struct compiler
*)
1689 xrealloc (compilers
,
1690 (n_compilers
+ 2) * sizeof (struct compiler
)));
1692 compilers
[n_compilers
].suffix
= suffix
;
1693 bzero ((char *) compilers
[n_compilers
].spec
,
1694 sizeof compilers
[n_compilers
].spec
);
1695 compilers
[n_compilers
].spec
[0] = spec
;
1697 bzero ((char *) &compilers
[n_compilers
],
1698 sizeof compilers
[n_compilers
]);
1702 link_command_spec
= spec
;
1705 if (link_command_spec
== 0)
1706 fatal ("spec file has no spec for linking");
1709 /* Record the names of temporary files we tell compilers to write,
1710 and delete them at the end of the run. */
1712 /* This is the common prefix we use to make temp file names.
1713 It is chosen once for each run of this program.
1714 It is substituted into a spec by %g.
1715 Thus, all temp file names contain this prefix.
1716 In practice, all temp file names start with this prefix.
1718 This prefix comes from the envvar TMPDIR if it is defined;
1719 otherwise, from the P_tmpdir macro if that is defined;
1720 otherwise, in /usr/tmp or /tmp;
1721 or finally the current directory if all else fails. */
1723 static char *temp_filename
;
1725 /* Length of the prefix. */
1727 static int temp_filename_length
;
1729 /* Define the list of temporary files to delete. */
1734 struct temp_file
*next
;
1737 /* Queue of files to delete on success or failure of compilation. */
1738 static struct temp_file
*always_delete_queue
;
1739 /* Queue of files to delete on failure of compilation. */
1740 static struct temp_file
*failure_delete_queue
;
1742 /* Record FILENAME as a file to be deleted automatically.
1743 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1744 otherwise delete it in any case.
1745 FAIL_DELETE nonzero means delete it if a compilation step fails;
1746 otherwise delete it in any case. */
1749 record_temp_file (filename
, always_delete
, fail_delete
)
1754 register char *name
;
1755 name
= xmalloc (strlen (filename
) + 1);
1756 strcpy (name
, filename
);
1760 register struct temp_file
*temp
;
1761 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1762 if (! strcmp (name
, temp
->name
))
1765 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1766 temp
->next
= always_delete_queue
;
1768 always_delete_queue
= temp
;
1775 register struct temp_file
*temp
;
1776 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1777 if (! strcmp (name
, temp
->name
))
1780 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1781 temp
->next
= failure_delete_queue
;
1783 failure_delete_queue
= temp
;
1789 /* Delete all the temporary files whose names we previously recorded. */
1792 delete_if_ordinary (name
)
1799 printf ("Delete %s? (y or n) ", name
);
1803 while ((c
= getchar ()) != '\n' && c
!= EOF
)
1806 if (i
== 'y' || i
== 'Y')
1808 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
1809 if (unlink (name
) < 0)
1811 perror_with_name (name
);
1815 delete_temp_files ()
1817 register struct temp_file
*temp
;
1819 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1820 delete_if_ordinary (temp
->name
);
1821 always_delete_queue
= 0;
1824 /* Delete all the files to be deleted on error. */
1827 delete_failure_queue ()
1829 register struct temp_file
*temp
;
1831 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1832 delete_if_ordinary (temp
->name
);
1836 clear_failure_queue ()
1838 failure_delete_queue
= 0;
1841 /* Routine to add variables to the environment. We do this to pass
1842 the pathname of the gcc driver, and the directories search to the
1843 collect2 program, which is being run as ld. This way, we can be
1844 sure of executing the right compiler when collect2 wants to build
1845 constructors and destructors. Since the environment variables we
1846 use come from an obstack, we don't have to worry about allocating
1855 #ifndef VMS /* nor about VMS */
1857 extern char **environ
;
1858 char **old_environ
= environ
;
1862 int str_len
= strlen (str
);
1866 while ((ch
= *p
++) != '\0' && ch
!= '=')
1872 /* Search for replacing an existing environment variable, and
1873 count the number of total environment variables. */
1874 for (envp
= old_environ
; *envp
; envp
++)
1877 if (!strncmp (str
, *envp
, name_len
))
1884 /* Add a new environment variable */
1885 environ
= (char **) xmalloc (sizeof (char *) * (num_envs
+2));
1887 memcpy ((char *) (environ
+ 1), (char *) old_environ
,
1888 sizeof (char *) * (num_envs
+1));
1893 #endif /* HAVE_PUTENV */
1896 /* Build a list of search directories from PATHS.
1897 PREFIX is a string to prepend to the list.
1898 If CHECK_DIR_P is non-zero we ensure the directory exists.
1899 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1900 It is also used by the --print-search-dirs flag. */
1903 build_search_list (paths
, prefix
, check_dir_p
)
1904 struct path_prefix
*paths
;
1908 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
1910 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
1911 int first_time
= TRUE
;
1912 struct prefix_list
*pprefix
;
1914 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
1916 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
1918 int len
= strlen (pprefix
->prefix
);
1922 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
1925 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1928 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1929 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
1932 if (just_machine_suffix
1933 && pprefix
->require_machine_suffix
== 2
1935 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
1938 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1941 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1942 obstack_grow (&collect_obstack
, just_machine_suffix
,
1946 if (! pprefix
->require_machine_suffix
)
1949 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1952 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1956 obstack_1grow (&collect_obstack
, '\0');
1957 return obstack_finish (&collect_obstack
);
1960 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1964 putenv_from_prefixes (paths
, env_var
)
1965 struct path_prefix
*paths
;
1968 putenv (build_search_list (paths
, env_var
, 1));
1971 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1972 access to check permissions.
1973 Return 0 if not found, otherwise return its name, allocated with malloc. */
1976 find_a_file (pprefix
, name
, mode
)
1977 struct path_prefix
*pprefix
;
1982 char *file_suffix
= ((mode
& X_OK
) != 0 ? EXECUTABLE_SUFFIX
: "");
1983 struct prefix_list
*pl
;
1984 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
1986 #ifdef DEFAULT_ASSEMBLER
1987 if (! strcmp(name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0) {
1988 name
= DEFAULT_ASSEMBLER
;
1989 len
= strlen(name
)+1;
1990 temp
= xmalloc (len
);
1991 strcpy (temp
, name
);
1996 #ifdef DEFAULT_LINKER
1997 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0) {
1998 name
= DEFAULT_LINKER
;
1999 len
= strlen(name
)+1;
2000 temp
= xmalloc (len
);
2001 strcpy (temp
, name
);
2007 len
+= strlen (machine_suffix
);
2009 temp
= xmalloc (len
);
2011 /* Determine the filename to execute (special case for absolute paths). */
2013 if (*name
== '/' || *name
== DIR_SEPARATOR
2014 /* Check for disk name on MS-DOS-based systems. */
2015 || (DIR_SEPARATOR
== '\\' && name
[1] == ':'
2016 && (name
[2] == DIR_SEPARATOR
|| name
[2] == '/')))
2018 if (access (name
, mode
) == 0)
2020 strcpy (temp
, name
);
2025 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2029 /* Some systems have a suffix for executable files.
2030 So try appending that first. */
2031 if (file_suffix
[0] != 0)
2033 strcpy (temp
, pl
->prefix
);
2034 strcat (temp
, machine_suffix
);
2035 strcat (temp
, name
);
2036 strcat (temp
, file_suffix
);
2037 if (access (temp
, mode
) == 0)
2039 if (pl
->used_flag_ptr
!= 0)
2040 *pl
->used_flag_ptr
= 1;
2045 /* Now try just the name. */
2046 strcpy (temp
, pl
->prefix
);
2047 strcat (temp
, machine_suffix
);
2048 strcat (temp
, name
);
2049 if (access (temp
, mode
) == 0)
2051 if (pl
->used_flag_ptr
!= 0)
2052 *pl
->used_flag_ptr
= 1;
2057 /* Certain prefixes are tried with just the machine type,
2058 not the version. This is used for finding as, ld, etc. */
2059 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2061 /* Some systems have a suffix for executable files.
2062 So try appending that first. */
2063 if (file_suffix
[0] != 0)
2065 strcpy (temp
, pl
->prefix
);
2066 strcat (temp
, just_machine_suffix
);
2067 strcat (temp
, name
);
2068 strcat (temp
, file_suffix
);
2069 if (access (temp
, mode
) == 0)
2071 if (pl
->used_flag_ptr
!= 0)
2072 *pl
->used_flag_ptr
= 1;
2077 strcpy (temp
, pl
->prefix
);
2078 strcat (temp
, just_machine_suffix
);
2079 strcat (temp
, name
);
2080 if (access (temp
, mode
) == 0)
2082 if (pl
->used_flag_ptr
!= 0)
2083 *pl
->used_flag_ptr
= 1;
2088 /* Certain prefixes can't be used without the machine suffix
2089 when the machine or version is explicitly specified. */
2090 if (! pl
->require_machine_suffix
)
2092 /* Some systems have a suffix for executable files.
2093 So try appending that first. */
2094 if (file_suffix
[0] != 0)
2096 strcpy (temp
, pl
->prefix
);
2097 strcat (temp
, name
);
2098 strcat (temp
, file_suffix
);
2099 if (access (temp
, mode
) == 0)
2101 if (pl
->used_flag_ptr
!= 0)
2102 *pl
->used_flag_ptr
= 1;
2107 strcpy (temp
, pl
->prefix
);
2108 strcat (temp
, name
);
2109 if (access (temp
, mode
) == 0)
2111 if (pl
->used_flag_ptr
!= 0)
2112 *pl
->used_flag_ptr
= 1;
2122 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
2123 at the start of the list, otherwise it goes at the end.
2125 If WARN is nonzero, we will warn if no file is found
2126 through this prefix. WARN should point to an int
2127 which will be set to 1 if this entry is used.
2129 COMPONENT is the value to be passed to update_path.
2131 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2132 the complete value of machine_suffix.
2133 2 means try both machine_suffix and just_machine_suffix. */
2136 add_prefix (pprefix
, prefix
, component
, first
, require_machine_suffix
, warn
)
2137 struct path_prefix
*pprefix
;
2141 int require_machine_suffix
;
2144 struct prefix_list
*pl
, **prev
;
2147 if (! first
&& pprefix
->plist
)
2149 for (pl
= pprefix
->plist
; pl
->next
; pl
= pl
->next
)
2154 prev
= &pprefix
->plist
;
2156 /* Keep track of the longest prefix */
2158 prefix
= update_path (prefix
, component
);
2159 len
= strlen (prefix
);
2160 if (len
> pprefix
->max_len
)
2161 pprefix
->max_len
= len
;
2163 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
2164 pl
->prefix
= save_string (prefix
, len
);
2165 pl
->require_machine_suffix
= require_machine_suffix
;
2166 pl
->used_flag_ptr
= warn
;
2173 pl
->next
= (struct prefix_list
*) 0;
2177 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
2180 unused_prefix_warnings (pprefix
)
2181 struct path_prefix
*pprefix
;
2183 struct prefix_list
*pl
= pprefix
->plist
;
2187 if (pl
->used_flag_ptr
!= 0 && !*pl
->used_flag_ptr
)
2189 if (pl
->require_machine_suffix
&& machine_suffix
)
2190 error ("file path prefix `%s%s' never used", pl
->prefix
,
2193 error ("file path prefix `%s' never used", pl
->prefix
);
2195 /* Prevent duplicate warnings. */
2196 *pl
->used_flag_ptr
= 1;
2204 /* Execute the command specified by the arguments on the current line of spec.
2205 When using pipes, this includes several piped-together commands
2206 with `|' between them.
2208 Return 0 if successful, -1 if failed. */
2214 int n_commands
; /* # of command. */
2218 char *prog
; /* program name. */
2219 char **argv
; /* vector of args. */
2220 int pid
; /* pid of process for this command. */
2223 struct command
*commands
; /* each command buffer with above info. */
2225 /* Count # of piped commands. */
2226 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2227 if (strcmp (argbuf
[i
], "|") == 0)
2230 /* Get storage for each command. */
2232 = (struct command
*) alloca (n_commands
* sizeof (struct command
));
2234 /* Split argbuf into its separate piped processes,
2235 and record info about each one.
2236 Also search for the programs that are to be run. */
2238 commands
[0].prog
= argbuf
[0]; /* first command. */
2239 commands
[0].argv
= &argbuf
[0];
2240 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2243 commands
[0].argv
[0] = string
;
2245 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2246 if (strcmp (argbuf
[i
], "|") == 0)
2247 { /* each command. */
2248 #if defined (__MSDOS__) || (defined (_WIN32) && defined (__CYGWIN32_)) || defined (OS2) || defined (VMS)
2249 fatal ("-pipe not supported");
2251 argbuf
[i
] = 0; /* termination of command args. */
2252 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2253 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2254 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2256 commands
[n_commands
].argv
[0] = string
;
2260 argbuf
[argbuf_index
] = 0;
2262 /* If -v, print what we are about to do, and maybe query. */
2266 /* For help listings, put a blank line between sub-processes. */
2267 if (print_help_list
)
2268 fputc ('\n', stderr
);
2270 /* Print each piped command as a separate line. */
2271 for (i
= 0; i
< n_commands
; i
++)
2275 for (j
= commands
[i
].argv
; *j
; j
++)
2276 fprintf (stderr
, " %s", *j
);
2278 /* Print a pipe symbol after all but the last command. */
2279 if (i
+ 1 != n_commands
)
2280 fprintf (stderr
, " |");
2281 fprintf (stderr
, "\n");
2285 fprintf (stderr
, "\nGo ahead? (y or n) ");
2289 while (getchar () != '\n')
2292 if (i
!= 'y' && i
!= 'Y')
2297 /* Run each piped subprocess. */
2299 for (i
= 0; i
< n_commands
; i
++)
2301 char *errmsg_fmt
, *errmsg_arg
;
2302 char *string
= commands
[i
].argv
[0];
2304 commands
[i
].pid
= pexecute (string
, commands
[i
].argv
,
2305 programname
, temp_filename
,
2306 &errmsg_fmt
, &errmsg_arg
,
2307 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2308 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2309 | (string
== commands
[i
].prog
2310 ? PEXECUTE_SEARCH
: 0)
2311 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2313 if (commands
[i
].pid
== -1)
2314 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2316 if (string
!= commands
[i
].prog
)
2322 /* Wait for all the subprocesses to finish.
2323 We don't care what order they finish in;
2324 we know that N_COMMANDS waits will get them all.
2325 Ignore subprocesses that we don't know about,
2326 since they can be spawned by the process that exec'ed us. */
2331 for (i
= 0; i
< n_commands
; )
2337 pid
= pwait (commands
[i
].pid
, &status
, 0);
2341 for (j
= 0; j
< n_commands
; j
++)
2342 if (commands
[j
].pid
== pid
)
2347 if (WIFSIGNALED (status
))
2349 fatal ("Internal compiler error: program %s got fatal signal %d",
2350 commands
[j
].prog
, WTERMSIG (status
));
2354 else if (WIFEXITED (status
)
2355 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2365 /* Find all the switches given to us
2366 and make a vector describing them.
2367 The elements of the vector are strings, one per switch given.
2368 If a switch uses following arguments, then the `part1' field
2369 is the switch itself and the `args' field
2370 is a null-terminated vector containing the following arguments.
2371 The `live_cond' field is 1 if the switch is true in a conditional spec,
2372 -1 if false (overridden by a later switch), and is initialized to zero.
2373 The `valid' field is nonzero if any spec has looked at this switch;
2374 if it remains zero at the end of the run, it must be meaningless. */
2384 static struct switchstr
*switches
;
2386 static int n_switches
;
2394 /* Also a vector of input files specified. */
2396 static struct infile
*infiles
;
2398 static int n_infiles
;
2400 /* This counts the number of libraries added by LANG_SPECIFIC_DRIVER, so that
2401 we can tell if there were any user supplied any files or libraries. */
2403 static int added_libraries
;
2405 /* And a vector of corresponding output files is made up later. */
2407 static char **outfiles
;
2409 /* Used to track if none of the -B paths are used. */
2412 /* Used to track if standard path isn't used and -b or -V is specified. */
2413 static int warn_std
;
2415 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2416 static int *warn_std_ptr
= 0;
2419 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2421 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2422 is true if we should look for an executable suffix as well. */
2425 convert_filename (name
, do_exe
)
2430 int len
= strlen (name
);
2432 #ifdef HAVE_OBJECT_SUFFIX
2433 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2435 && name
[len
- 2] == '.'
2436 && name
[len
- 1] == 'o')
2438 obstack_grow (&obstack
, name
, len
- 2);
2439 obstack_grow0 (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
2440 name
= obstack_finish (&obstack
);
2444 #ifdef HAVE_EXECUTABLE_SUFFIX
2445 /* If there is no filetype, make it the executable suffix (which includes
2446 the "."). But don't get confused if we have just "-o". */
2447 if (! do_exe
|| EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2450 for (i
= len
- 1; i
>= 0; i
--)
2451 if (name
[i
] == '/' || name
[i
] == DIR_SEPARATOR
)
2454 for (i
++; i
< len
; i
++)
2458 obstack_grow (&obstack
, name
, len
);
2459 obstack_grow0 (&obstack
, EXECUTABLE_SUFFIX
, strlen (EXECUTABLE_SUFFIX
));
2460 name
= obstack_finish (&obstack
);
2467 /* Display the command line switches accepted by gcc. */
2471 printf ("Usage: %s [options] file...\n", programname
);
2472 printf ("Options:\n");
2474 printf (" --help Display this information\n");
2476 printf (" (Use '-v --help' to display command line options of sub-processes)\n");
2477 printf (" -dumpspecs Display all of the built in spec strings\n");
2478 printf (" -dumpversion Display the version of the compiler\n");
2479 printf (" -dumpmachine Display the compiler's target processor\n");
2480 printf (" -print-search-dirs Display the directories in the compiler's search path\n");
2481 printf (" -print-libgcc-file-name Display the name of the compiler's companion library\n");
2482 printf (" -print-file-name=<lib> Display the full path to library <lib>\n");
2483 printf (" -print-prog-name=<prog> Display the full path to compiler component <prog>\n");
2484 printf (" -print-multi-directory Display the root directory for versions of libgcc\n");
2485 printf (" -print-multi-lib Display the mapping between command line options and\n");
2486 printf (" multiple library search directories\n");
2487 printf (" -Wa,<options> Pass comma-separated <options> on to the assembler\n");
2488 printf (" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n");
2489 printf (" -Wl,<options> Pass comma-separated <options> on to the linker\n");
2490 printf (" -Xlinker <arg> Pass <arg> on to the linker\n");
2491 printf (" -save-temps Do not delete intermediate files\n");
2492 printf (" -pipe Use pipes rather than intermediate files\n");
2493 printf (" -specs=<file> Override builtin specs with the contents of <file>\n");
2494 printf (" -B <directory> Add <directory> to the compiler's search paths\n");
2495 printf (" -b <machine> Run gcc for target <machine>, if installed\n");
2496 printf (" -V <version> Run gcc version number <version>, if installed\n");
2497 printf (" -v Display the programs invoked by the compiler\n");
2498 printf (" -E Preprocess only; do not compile, assemble or link\n");
2499 printf (" -S Compile only; do not assemble or link\n");
2500 printf (" -c Compile and assemble, but do not link\n");
2501 printf (" -o <file> Place the output into <file>\n");
2502 printf (" -x <language> Specify the language of the following input files\n");
2503 printf (" Permissable languages include: c c++ assembler none\n");
2504 printf (" 'none' means revert to the default behaviour of\n");
2505 printf (" guessing the language based on the file's extension\n");
2507 printf ("\nOptions starting with -g, -f, -m, -O or -W are automatically passed on to\n");
2508 printf ("the various sub-processes invoked by %s. In order to pass other options\n",
2510 printf ("on to these processes the -W<letter> options must be used.\n");
2512 /* The rest of the options are displayed by invocations of the various
2517 add_preprocessor_option (option
, len
)
2521 n_preprocessor_options
++;
2523 if (! preprocessor_options
)
2524 preprocessor_options
2525 = (char **) xmalloc (n_preprocessor_options
* sizeof (char *));
2527 preprocessor_options
2528 = (char **) xrealloc (preprocessor_options
,
2529 n_preprocessor_options
* sizeof (char *));
2531 preprocessor_options
[n_preprocessor_options
- 1] = save_string (option
, len
);
2535 add_assembler_option (option
, len
)
2539 n_assembler_options
++;
2541 if (! assembler_options
)
2543 = (char **) xmalloc (n_assembler_options
* sizeof (char *));
2546 = (char **) xrealloc (assembler_options
,
2547 n_assembler_options
* sizeof (char *));
2549 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
2553 add_linker_option (option
, len
)
2559 if (! linker_options
)
2561 = (char **) xmalloc (n_linker_options
* sizeof (char *));
2564 = (char **) xrealloc (linker_options
,
2565 n_linker_options
* sizeof (char *));
2567 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
2570 /* Create the vector `switches' and its contents.
2571 Store its length in `n_switches'. */
2574 process_command (argc
, argv
)
2580 char *spec_lang
= 0;
2581 int last_language_n_infiles
;
2584 int lang_n_infiles
= 0;
2586 GET_ENV_PATH_LIST (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
2590 added_libraries
= 0;
2592 /* Figure compiler version from version string. */
2594 compiler_version
= save_string (version_string
, strlen (version_string
));
2595 for (temp
= compiler_version
; *temp
; ++temp
)
2604 /* Set up the default search paths. */
2606 if (gcc_exec_prefix
)
2608 int len
= strlen (gcc_exec_prefix
);
2609 if (len
> sizeof ("/lib/gcc-lib/")-1
2610 && (gcc_exec_prefix
[len
-1] == '/'
2611 || gcc_exec_prefix
[len
-1] == DIR_SEPARATOR
))
2613 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc-lib/") + 1;
2614 if ((*temp
== '/' || *temp
== DIR_SEPARATOR
)
2615 && strncmp (temp
+1, "lib", 3) == 0
2616 && (temp
[4] == '/' || temp
[4] == DIR_SEPARATOR
)
2617 && strncmp (temp
+5, "gcc-lib", 7) == 0)
2618 len
-= sizeof ("/lib/gcc-lib/") - 1;
2621 set_std_prefix (gcc_exec_prefix
, len
);
2622 add_prefix (&exec_prefixes
, gcc_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
2623 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
2626 /* COMPILER_PATH and LIBRARY_PATH have values
2627 that are lists of directory names with colons. */
2629 GET_ENV_PATH_LIST (temp
, "COMPILER_PATH");
2632 char *startp
, *endp
;
2633 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2635 startp
= endp
= temp
;
2638 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2640 strncpy (nstore
, startp
, endp
-startp
);
2642 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2643 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2645 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2646 nstore
[endp
-startp
+1] = 0;
2649 nstore
[endp
-startp
] = 0;
2650 add_prefix (&exec_prefixes
, nstore
, 0, 0, 0, NULL_PTR
);
2651 add_prefix (&include_prefixes
,
2652 concat (nstore
, "include", NULL_PTR
),
2656 endp
= startp
= endp
+ 1;
2663 GET_ENV_PATH_LIST (temp
, "LIBRARY_PATH");
2664 if (temp
&& *cross_compile
== '0')
2666 char *startp
, *endp
;
2667 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2669 startp
= endp
= temp
;
2672 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2674 strncpy (nstore
, startp
, endp
-startp
);
2676 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2677 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2679 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2680 nstore
[endp
-startp
+1] = 0;
2683 nstore
[endp
-startp
] = 0;
2684 add_prefix (&startfile_prefixes
, nstore
, NULL_PTR
,
2688 endp
= startp
= endp
+ 1;
2695 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2696 GET_ENV_PATH_LIST (temp
, "LPATH");
2697 if (temp
&& *cross_compile
== '0')
2699 char *startp
, *endp
;
2700 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2702 startp
= endp
= temp
;
2705 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2707 strncpy (nstore
, startp
, endp
-startp
);
2709 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2710 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2712 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2713 nstore
[endp
-startp
+1] = 0;
2716 nstore
[endp
-startp
] = 0;
2717 add_prefix (&startfile_prefixes
, nstore
, NULL_PTR
,
2721 endp
= startp
= endp
+ 1;
2728 /* Convert new-style -- options to old-style. */
2729 translate_options (&argc
, &argv
);
2731 #ifdef LANG_SPECIFIC_DRIVER
2732 /* Do language-specific adjustment/addition of flags. */
2733 lang_specific_driver (fatal
, &argc
, &argv
, &added_libraries
);
2736 /* Scan argv twice. Here, the first time, just count how many switches
2737 there will be in their vector, and how many input files in theirs.
2738 Here we also parse the switches that cc itself uses (e.g. -v). */
2740 for (i
= 1; i
< argc
; i
++)
2742 if (! strcmp (argv
[i
], "-dumpspecs"))
2744 struct spec_list
*sl
;
2746 for (sl
= specs
; sl
; sl
= sl
->next
)
2747 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
2750 else if (! strcmp (argv
[i
], "-dumpversion"))
2752 printf ("%s\n", spec_version
);
2755 else if (! strcmp (argv
[i
], "-dumpmachine"))
2757 printf ("%s\n", spec_machine
);
2760 else if (strcmp (argv
[i
], "-fhelp") == 0)
2762 /* translate_options () has turned --help into -fhelp. */
2763 print_help_list
= 1;
2765 /* We will be passing a dummy file on to the sub-processes. */
2769 add_preprocessor_option ("--help", 6);
2770 add_assembler_option ("--help", 6);
2771 add_linker_option ("--help", 6);
2773 else if (! strcmp (argv
[i
], "-print-search-dirs"))
2774 print_search_dirs
= 1;
2775 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2776 print_file_name
= "libgcc.a";
2777 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2778 print_file_name
= argv
[i
] + 17;
2779 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2780 print_prog_name
= argv
[i
] + 17;
2781 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2782 print_multi_lib
= 1;
2783 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2784 print_multi_directory
= 1;
2785 else if (! strncmp (argv
[i
], "-Wa,", 4))
2788 /* Pass the rest of this option to the assembler. */
2790 /* Split the argument at commas. */
2792 for (j
= 4; argv
[i
][j
]; j
++)
2793 if (argv
[i
][j
] == ',')
2795 add_assembler_option (argv
[i
] + prev
, j
- prev
);
2799 /* Record the part after the last comma. */
2800 add_assembler_option (argv
[i
] + prev
, j
- prev
);
2802 else if (! strncmp (argv
[i
], "-Wp,", 4))
2805 /* Pass the rest of this option to the preprocessor. */
2807 /* Split the argument at commas. */
2809 for (j
= 4; argv
[i
][j
]; j
++)
2810 if (argv
[i
][j
] == ',')
2812 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
2816 /* Record the part after the last comma. */
2817 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
2819 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2820 /* The +e options to the C++ front-end. */
2822 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
2825 /* Split the argument at commas. */
2826 for (j
= 3; argv
[i
][j
]; j
++)
2827 n_infiles
+= (argv
[i
][j
] == ',');
2829 else if (strcmp (argv
[i
], "-Xlinker") == 0)
2832 fatal ("argument to `-Xlinker' is missing");
2837 else if (strncmp (argv
[i
], "-l", 2) == 0)
2839 else if (strcmp (argv
[i
], "-save-temps") == 0)
2841 save_temps_flag
= 1;
2844 else if (strcmp (argv
[i
], "-specs") == 0)
2846 struct user_specs
*user
= (struct user_specs
*)
2847 xmalloc (sizeof (struct user_specs
));
2849 fatal ("argument to `-specs' is missing");
2851 user
->next
= (struct user_specs
*)0;
2852 user
->filename
= argv
[i
];
2853 if (user_specs_tail
)
2854 user_specs_tail
->next
= user
;
2856 user_specs_head
= user
;
2857 user_specs_tail
= user
;
2859 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
2861 struct user_specs
*user
= (struct user_specs
*)
2862 xmalloc (sizeof (struct user_specs
));
2863 if (strlen (argv
[i
]) == 7)
2864 fatal ("argument to `-specs=' is missing");
2866 user
->next
= (struct user_specs
*)0;
2867 user
->filename
= argv
[i
]+7;
2868 if (user_specs_tail
)
2869 user_specs_tail
->next
= user
;
2871 user_specs_head
= user
;
2872 user_specs_tail
= user
;
2874 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
2876 register char *p
= &argv
[i
][1];
2877 register int c
= *p
;
2883 if (p
[1] == 0 && i
+ 1 == argc
)
2884 fatal ("argument to `-b' is missing");
2886 spec_machine
= argv
[++i
];
2888 spec_machine
= p
+ 1;
2890 warn_std_ptr
= &warn_std
;
2896 if (p
[1] == 0 && i
+ 1 == argc
)
2897 fatal ("argument to `-B' is missing");
2902 add_prefix (&exec_prefixes
, value
, NULL_PTR
, 1, 0, &warn_B
);
2903 add_prefix (&startfile_prefixes
, value
, NULL_PTR
,
2905 add_prefix (&include_prefixes
, concat (value
, "include",
2907 NULL_PTR
, 1, 0, NULL_PTR
);
2909 /* As a kludge, if the arg is "[foo/]stageN/", just add
2910 "[foo/]include" to the include prefix. */
2912 int len
= strlen (value
);
2915 && (value
[len
- 8] == '/'
2916 || value
[len
- 8] == DIR_SEPARATOR
)))
2917 && strncmp (value
+ len
- 7, "stage", 5) == 0
2918 && ISDIGIT (value
[len
- 2])
2919 && (value
[len
- 1] == '/'
2920 || value
[len
- 1] == DIR_SEPARATOR
))
2923 add_prefix (&include_prefixes
, "include", NULL_PTR
,
2927 char *string
= xmalloc (len
+ 1);
2928 strncpy (string
, value
, len
-7);
2929 strcpy (string
+len
-7, "include");
2930 add_prefix (&include_prefixes
, string
, NULL_PTR
,
2939 case 'v': /* Print our subcommands and print versions. */
2941 /* If they do anything other than exactly `-v', don't set
2942 verbose_flag; rather, continue on to give the error. */
2950 if (p
[1] == 0 && i
+ 1 == argc
)
2951 fatal ("argument to `-V' is missing");
2953 spec_version
= argv
[++i
];
2955 spec_version
= p
+ 1;
2956 compiler_version
= spec_version
;
2957 warn_std_ptr
= &warn_std
;
2959 /* Validate the version number. Use the same checks
2960 done when inserting it into a spec.
2962 The format of the version string is
2963 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
2965 char *v
= compiler_version
;
2967 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
2968 while (! ISDIGIT (*v
))
2971 if (v
> compiler_version
&& v
[-1] != '-')
2972 fatal ("invalid version number format");
2974 /* Set V after the first period. */
2975 while (ISDIGIT (*v
))
2979 fatal ("invalid version number format");
2982 while (ISDIGIT (*v
))
2985 if (*v
!= 0 && *v
!= ' ' && *v
!= '.' && *v
!= '-')
2986 fatal ("invalid version number format");
3002 #if defined(HAVE_EXECUTABLE_SUFFIX)
3007 /* Forward scan, just in case -S or -c is specified
3014 if (argv
[j
][0] == '-')
3016 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3022 else if (skip
= SWITCH_TAKES_ARG (argv
[j
][1]))
3023 j
+= skip
- (argv
[j
][2] != 0);
3024 else if (skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1))
3031 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
3033 argv
[i
+1] = convert_filename (argv
[i
+1], ! have_c
);
3035 argv
[i
] = convert_filename (argv
[i
], ! have_c
);
3043 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3044 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3045 else if (WORD_SWITCH_TAKES_ARG (p
))
3046 i
+= WORD_SWITCH_TAKES_ARG (p
);
3056 if (have_c
&& have_o
&& lang_n_infiles
> 1)
3057 fatal ("cannot specify -o with -c or -S and multiple compilations");
3059 /* Set up the search paths before we go looking for config files. */
3061 /* These come before the md prefixes so that we will find gcc's subcommands
3062 (such as cpp) rather than those of the host system. */
3063 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3064 as well as trying the machine and the version. */
3066 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3067 0, 2, warn_std_ptr
);
3068 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3069 0, 2, warn_std_ptr
);
3072 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3073 0, 1, warn_std_ptr
);
3074 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3075 0, 1, warn_std_ptr
);
3077 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3078 dir_separator_str
, NULL_PTR
);
3080 /* If tooldir is relative, base it on exec_prefixes. A relative
3081 tooldir lets us move the installed tree as a unit.
3083 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3084 directories, so that we can search both the user specified directory
3085 and the standard place. */
3087 if (*tooldir_prefix
!= '/' && *tooldir_prefix
!= DIR_SEPARATOR
)
3089 if (gcc_exec_prefix
)
3091 char *gcc_exec_tooldir_prefix
3092 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3093 spec_version
, dir_separator_str
, tooldir_prefix
, NULL_PTR
);
3095 add_prefix (&exec_prefixes
,
3096 concat (gcc_exec_tooldir_prefix
, "bin",
3097 dir_separator_str
, NULL_PTR
),
3098 NULL_PTR
, 0, 0, NULL_PTR
);
3099 add_prefix (&startfile_prefixes
,
3100 concat (gcc_exec_tooldir_prefix
, "lib",
3101 dir_separator_str
, NULL_PTR
),
3102 NULL_PTR
, 0, 0, NULL_PTR
);
3105 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3106 dir_separator_str
, spec_version
,
3107 dir_separator_str
, tooldir_prefix
, NULL_PTR
);
3110 add_prefix (&exec_prefixes
,
3111 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL_PTR
),
3112 "BINUTILS", 0, 0, NULL_PTR
);
3113 add_prefix (&startfile_prefixes
,
3114 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL_PTR
),
3115 "BINUTILS", 0, 0, NULL_PTR
);
3117 /* More prefixes are enabled in main, after we read the specs file
3118 and determine whether this is cross-compilation or not. */
3121 /* Then create the space for the vectors and scan again. */
3123 switches
= ((struct switchstr
*)
3124 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
3125 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3128 last_language_n_infiles
= -1;
3130 /* This, time, copy the text of each switch and store a pointer
3131 to the copy in the vector of switches.
3132 Store all the infiles in their vector. */
3134 for (i
= 1; i
< argc
; i
++)
3136 /* Just skip the switches that were handled by the preceding loop. */
3137 if (! strncmp (argv
[i
], "-Wa,", 4))
3139 else if (! strncmp (argv
[i
], "-Wp,", 4))
3141 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3143 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3145 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3147 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3149 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3151 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3153 else if (strcmp (argv
[i
], "-fhelp") == 0)
3157 /* Create a dummy input file, so that we can pass --help on to
3158 the various sub-processes. */
3159 infiles
[n_infiles
].language
= "c";
3160 infiles
[n_infiles
++].name
= "help-dummy";
3162 /* Preserve the --help switch so that it can be caught by the
3164 switches
[n_switches
].part1
= "--help";
3165 switches
[n_switches
].args
= 0;
3166 switches
[n_switches
].live_cond
= 0;
3167 switches
[n_switches
].valid
= 0;
3172 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3174 /* Compensate for the +e options to the C++ front-end;
3175 they're there simply for cfront call-compatibility. We do
3176 some magic in default_compilers to pass them down properly.
3177 Note we deliberately start at the `+' here, to avoid passing
3178 -e0 or -e1 down into the linker. */
3179 switches
[n_switches
].part1
= &argv
[i
][0];
3180 switches
[n_switches
].args
= 0;
3181 switches
[n_switches
].live_cond
= 0;
3182 switches
[n_switches
].valid
= 0;
3185 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3188 /* Split the argument at commas. */
3190 for (j
= 4; argv
[i
][j
]; j
++)
3191 if (argv
[i
][j
] == ',')
3193 infiles
[n_infiles
].language
= "*";
3194 infiles
[n_infiles
++].name
3195 = save_string (argv
[i
] + prev
, j
- prev
);
3198 /* Record the part after the last comma. */
3199 infiles
[n_infiles
].language
= "*";
3200 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3202 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3204 infiles
[n_infiles
].language
= "*";
3205 infiles
[n_infiles
++].name
= argv
[++i
];
3207 else if (strncmp (argv
[i
], "-l", 2) == 0)
3209 infiles
[n_infiles
].language
= "*";
3210 infiles
[n_infiles
++].name
= argv
[i
];
3212 else if (strcmp (argv
[i
], "-specs") == 0)
3214 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3216 /* -save-temps overrides -pipe, so that temp files are produced */
3217 else if (save_temps_flag
&& strcmp (argv
[i
], "-pipe") == 0)
3218 error ("Warning: -pipe ignored since -save-temps specified");
3219 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3221 register char *p
= &argv
[i
][1];
3222 register int c
= *p
;
3226 if (p
[1] == 0 && i
+ 1 == argc
)
3227 fatal ("argument to `-x' is missing");
3229 spec_lang
= argv
[++i
];
3232 if (! strcmp (spec_lang
, "none"))
3233 /* Suppress the warning if -xnone comes after the last input
3234 file, because alternate command interfaces like g++ might
3235 find it useful to place -xnone after each input file. */
3238 last_language_n_infiles
= n_infiles
;
3241 switches
[n_switches
].part1
= p
;
3242 /* Deal with option arguments in separate argv elements. */
3243 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3244 || WORD_SWITCH_TAKES_ARG (p
))
3247 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
3251 /* Count only the option arguments in separate argv elements. */
3252 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3254 if (i
+ n_args
>= argc
)
3255 fatal ("argument to `-%s' is missing", p
);
3256 switches
[n_switches
].args
3257 = (char **) xmalloc ((n_args
+ 1) * sizeof (char *));
3259 switches
[n_switches
].args
[j
++] = argv
[++i
];
3260 /* Null-terminate the vector. */
3261 switches
[n_switches
].args
[j
] = 0;
3263 else if (index (switches_need_spaces
, c
))
3265 /* On some systems, ld cannot handle some options without
3266 a space. So split the option from its argument. */
3267 char *part1
= (char *) xmalloc (2);
3271 switches
[n_switches
].part1
= part1
;
3272 switches
[n_switches
].args
= (char **) xmalloc (2 * sizeof (char *));
3273 switches
[n_switches
].args
[0] = xmalloc (strlen (p
));
3274 strcpy (switches
[n_switches
].args
[0], &p
[1]);
3275 switches
[n_switches
].args
[1] = 0;
3278 switches
[n_switches
].args
= 0;
3280 switches
[n_switches
].live_cond
= 0;
3281 switches
[n_switches
].valid
= 0;
3282 /* This is always valid, since gcc.c itself understands it. */
3283 if (!strcmp (p
, "save-temps"))
3284 switches
[n_switches
].valid
= 1;
3287 char ch
= switches
[n_switches
].part1
[0];
3288 if (ch
== 'V' || ch
== 'b' || ch
== 'B')
3289 switches
[n_switches
].valid
= 1;
3295 #ifdef HAVE_OBJECT_SUFFIX
3296 argv
[i
] = convert_filename (argv
[i
], 0);
3299 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], R_OK
) < 0)
3301 perror_with_name (argv
[i
]);
3306 infiles
[n_infiles
].language
= spec_lang
;
3307 infiles
[n_infiles
++].name
= argv
[i
];
3312 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
3313 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
3315 switches
[n_switches
].part1
= 0;
3316 infiles
[n_infiles
].name
= 0;
3319 /* Process a spec string, accumulating and running commands. */
3321 /* These variables describe the input file name.
3322 input_file_number is the index on outfiles of this file,
3323 so that the output file name can be stored for later use by %o.
3324 input_basename is the start of the part of the input file
3325 sans all directory names, and basename_length is the number
3326 of characters starting there excluding the suffix .c or whatever. */
3328 char *input_filename
;
3329 static int input_file_number
;
3330 size_t input_filename_length
;
3331 static int basename_length
;
3332 static char *input_basename
;
3333 static char *input_suffix
;
3335 /* These are variables used within do_spec and do_spec_1. */
3337 /* Nonzero if an arg has been started and not yet terminated
3338 (with space, tab or newline). */
3339 static int arg_going
;
3341 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3342 is a temporary file name. */
3343 static int delete_this_arg
;
3345 /* Nonzero means %w has been seen; the next arg to be terminated
3346 is the output file name of this compilation. */
3347 static int this_is_output_file
;
3349 /* Nonzero means %s has been seen; the next arg to be terminated
3350 is the name of a library file and we should try the standard
3351 search dirs for it. */
3352 static int this_is_library_file
;
3354 /* Nonzero means that the input of this command is coming from a pipe. */
3355 static int input_from_pipe
;
3357 /* Process the spec SPEC and run the commands specified therein.
3358 Returns 0 if the spec is successfully processed; -1 if failed. */
3368 delete_this_arg
= 0;
3369 this_is_output_file
= 0;
3370 this_is_library_file
= 0;
3371 input_from_pipe
= 0;
3373 value
= do_spec_1 (spec
, 0, NULL_PTR
);
3375 /* Force out any unfinished command.
3376 If -pipe, this forces out the last command if it ended in `|'. */
3379 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3382 if (argbuf_index
> 0)
3389 /* Process the sub-spec SPEC as a portion of a larger spec.
3390 This is like processing a whole spec except that we do
3391 not initialize at the beginning and we do not supply a
3392 newline by default at the end.
3393 INSWITCH nonzero means don't process %-sequences in SPEC;
3394 in this case, % is treated as an ordinary character.
3395 This is used while substituting switches.
3396 INSWITCH nonzero also causes SPC not to terminate an argument.
3398 Value is zero unless a line was finished
3399 and the command on that line reported an error. */
3402 do_spec_1 (spec
, inswitch
, soft_matched_part
)
3405 char *soft_matched_part
;
3407 register char *p
= spec
;
3414 /* If substituting a switch, treat all chars like letters.
3415 Otherwise, NL, SPC, TAB and % are special. */
3416 switch (inswitch
? 'a' : c
)
3419 /* End of line: finish any pending argument,
3420 then run the pending command if one has been started. */
3423 obstack_1grow (&obstack
, 0);
3424 string
= obstack_finish (&obstack
);
3425 if (this_is_library_file
)
3426 string
= find_file (string
);
3427 store_arg (string
, delete_this_arg
, this_is_output_file
);
3428 if (this_is_output_file
)
3429 outfiles
[input_file_number
] = string
;
3433 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3435 for (i
= 0; i
< n_switches
; i
++)
3436 if (!strcmp (switches
[i
].part1
, "pipe"))
3439 /* A `|' before the newline means use a pipe here,
3440 but only if -pipe was specified.
3441 Otherwise, execute now and don't pass the `|' as an arg. */
3444 input_from_pipe
= 1;
3445 switches
[i
].valid
= 1;
3452 if (argbuf_index
> 0)
3458 /* Reinitialize for a new command, and for a new argument. */
3461 delete_this_arg
= 0;
3462 this_is_output_file
= 0;
3463 this_is_library_file
= 0;
3464 input_from_pipe
= 0;
3468 /* End any pending argument. */
3471 obstack_1grow (&obstack
, 0);
3472 string
= obstack_finish (&obstack
);
3473 if (this_is_library_file
)
3474 string
= find_file (string
);
3475 store_arg (string
, delete_this_arg
, this_is_output_file
);
3476 if (this_is_output_file
)
3477 outfiles
[input_file_number
] = string
;
3481 obstack_1grow (&obstack
, c
);
3487 /* Space or tab ends an argument if one is pending. */
3490 obstack_1grow (&obstack
, 0);
3491 string
= obstack_finish (&obstack
);
3492 if (this_is_library_file
)
3493 string
= find_file (string
);
3494 store_arg (string
, delete_this_arg
, this_is_output_file
);
3495 if (this_is_output_file
)
3496 outfiles
[input_file_number
] = string
;
3498 /* Reinitialize for a new argument. */
3500 delete_this_arg
= 0;
3501 this_is_output_file
= 0;
3502 this_is_library_file
= 0;
3509 fatal ("Invalid specification! Bug in cc.");
3512 obstack_grow (&obstack
, input_basename
, basename_length
);
3517 delete_this_arg
= 2;
3520 /* Dump out the directories specified with LIBRARY_PATH,
3521 followed by the absolute directories
3522 that we search for startfiles. */
3525 struct prefix_list
*pl
= startfile_prefixes
.plist
;
3526 size_t bufsize
= 100;
3527 char *buffer
= (char *) xmalloc (bufsize
);
3530 for (; pl
; pl
= pl
->next
)
3532 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3533 /* Used on systems which record the specified -L dirs
3534 and use them to search for dynamic linking. */
3535 /* Relative directories always come from -B,
3536 and it is better not to use them for searching
3537 at run time. In particular, stage1 loses */
3538 if (pl
->prefix
[0] != '/' && pl
->prefix
[0] != DIR_SEPARATOR
)
3541 /* Try subdirectory if there is one. */
3542 if (multilib_dir
!= NULL
)
3546 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
3548 bufsize
= (strlen (pl
->prefix
)
3549 + strlen (machine_suffix
)) * 2 + 1;
3550 buffer
= (char *) xrealloc (buffer
, bufsize
);
3551 strcpy (buffer
, pl
->prefix
);
3552 strcat (buffer
, machine_suffix
);
3553 if (is_directory (buffer
, multilib_dir
, 1))
3555 do_spec_1 ("-L", 0, NULL_PTR
);
3556 #ifdef SPACE_AFTER_L_OPTION
3557 do_spec_1 (" ", 0, NULL_PTR
);
3559 do_spec_1 (buffer
, 1, NULL_PTR
);
3560 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3561 /* Make this a separate argument. */
3562 do_spec_1 (" ", 0, NULL_PTR
);
3565 if (!pl
->require_machine_suffix
)
3567 if (is_directory (pl
->prefix
, multilib_dir
, 1))
3569 do_spec_1 ("-L", 0, NULL_PTR
);
3570 #ifdef SPACE_AFTER_L_OPTION
3571 do_spec_1 (" ", 0, NULL_PTR
);
3573 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3574 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3575 /* Make this a separate argument. */
3576 do_spec_1 (" ", 0, NULL_PTR
);
3582 if (is_directory (pl
->prefix
, machine_suffix
, 1))
3584 do_spec_1 ("-L", 0, NULL_PTR
);
3585 #ifdef SPACE_AFTER_L_OPTION
3586 do_spec_1 (" ", 0, NULL_PTR
);
3588 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3589 /* Remove slash from machine_suffix. */
3590 if (strlen (machine_suffix
) >= bufsize
)
3591 bufsize
= strlen (machine_suffix
) * 2 + 1;
3592 buffer
= (char *) xrealloc (buffer
, bufsize
);
3593 strcpy (buffer
, machine_suffix
);
3594 idx
= strlen (buffer
);
3595 if (buffer
[idx
- 1] == '/'
3596 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3597 buffer
[idx
- 1] = 0;
3598 do_spec_1 (buffer
, 1, NULL_PTR
);
3599 /* Make this a separate argument. */
3600 do_spec_1 (" ", 0, NULL_PTR
);
3603 if (!pl
->require_machine_suffix
)
3605 if (is_directory (pl
->prefix
, "", 1))
3607 do_spec_1 ("-L", 0, NULL_PTR
);
3608 #ifdef SPACE_AFTER_L_OPTION
3609 do_spec_1 (" ", 0, NULL_PTR
);
3611 /* Remove slash from pl->prefix. */
3612 if (strlen (pl
->prefix
) >= bufsize
)
3613 bufsize
= strlen (pl
->prefix
) * 2 + 1;
3614 buffer
= (char *) xrealloc (buffer
, bufsize
);
3615 strcpy (buffer
, pl
->prefix
);
3616 idx
= strlen (buffer
);
3617 if (buffer
[idx
- 1] == '/'
3618 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3619 buffer
[idx
- 1] = 0;
3620 do_spec_1 (buffer
, 1, NULL_PTR
);
3621 /* Make this a separate argument. */
3622 do_spec_1 (" ", 0, NULL_PTR
);
3631 /* {...:%efoo} means report an error with `foo' as error message
3632 and don't execute any more commands for this file. */
3636 while (*p
!= 0 && *p
!= '\n') p
++;
3637 buf
= (char *) alloca (p
- q
+ 1);
3638 strncpy (buf
, q
, p
- q
);
3648 if (save_temps_flag
)
3650 obstack_grow (&obstack
, input_basename
, basename_length
);
3651 delete_this_arg
= 0;
3655 #ifdef MKTEMP_EACH_FILE
3656 /* ??? This has a problem: the total number of
3657 values mktemp can return is limited.
3658 That matters for the names of object files.
3659 In 2.4, do something about that. */
3660 struct temp_name
*t
;
3664 if (p
[0] == '%' && p
[1] == 'O')
3666 /* We don't support extra suffix characters after %O. */
3667 if (*p
== '.' || ISALPHA (*p
))
3669 suffix
= OBJECT_SUFFIX
;
3670 suffix_length
= strlen (OBJECT_SUFFIX
);
3675 while (*p
== '.' || ISALPHA (*p
))
3677 suffix_length
= p
- suffix
;
3680 /* See if we already have an association of %g/%u/%U and
3682 for (t
= temp_names
; t
; t
= t
->next
)
3683 if (t
->length
== suffix_length
3684 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
3685 && t
->unique
== (c
!= 'g'))
3688 /* Make a new association if needed. %u requires one. */
3689 if (t
== 0 || c
== 'u')
3693 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
3694 t
->next
= temp_names
;
3697 t
->length
= suffix_length
;
3698 t
->suffix
= save_string (suffix
, suffix_length
);
3699 t
->unique
= (c
!= 'g');
3700 temp_filename
= make_temp_file (t
->suffix
);
3701 temp_filename_length
= strlen (temp_filename
);
3702 t
->filename
= temp_filename
;
3703 t
->filename_length
= temp_filename_length
;
3706 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
3707 delete_this_arg
= 1;
3709 obstack_grow (&obstack
, temp_filename
, temp_filename_length
);
3710 if (c
== 'u' || c
== 'U')
3716 sprintf (buff
, "%d", unique
);
3717 obstack_grow (&obstack
, buff
, strlen (buff
));
3720 delete_this_arg
= 1;
3726 obstack_grow (&obstack
, input_filename
, input_filename_length
);
3732 struct prefix_list
*pl
= include_prefixes
.plist
;
3734 if (gcc_exec_prefix
)
3736 do_spec_1 ("-iprefix", 1, NULL_PTR
);
3737 /* Make this a separate argument. */
3738 do_spec_1 (" ", 0, NULL_PTR
);
3739 do_spec_1 (gcc_exec_prefix
, 1, NULL_PTR
);
3740 do_spec_1 (" ", 0, NULL_PTR
);
3743 for (; pl
; pl
= pl
->next
)
3745 do_spec_1 ("-isystem", 1, NULL_PTR
);
3746 /* Make this a separate argument. */
3747 do_spec_1 (" ", 0, NULL_PTR
);
3748 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3749 do_spec_1 (" ", 0, NULL_PTR
);
3756 int max
= n_infiles
;
3757 #ifdef LANG_SPECIFIC_DRIVER
3758 max
+= lang_specific_extra_outfiles
;
3760 for (i
= 0; i
< max
; i
++)
3762 store_arg (outfiles
[i
], 0, 0);
3767 obstack_grow (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
3772 this_is_library_file
= 1;
3776 this_is_output_file
= 1;
3781 int cur_index
= argbuf_index
;
3782 /* Handle the {...} following the %W. */
3785 p
= handle_braces (p
+ 1);
3788 /* If any args were output, mark the last one for deletion
3790 if (argbuf_index
!= cur_index
)
3791 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
3795 /* %x{OPTION} records OPTION for %X to output. */
3801 /* Skip past the option value and make a copy. */
3806 string
= save_string (p1
+ 1, p
- p1
- 2);
3808 /* See if we already recorded this option. */
3809 for (i
= 0; i
< n_linker_options
; i
++)
3810 if (! strcmp (string
, linker_options
[i
]))
3816 /* This option is new; add it. */
3817 add_linker_option (string
, strlen (string
));
3821 /* Dump out the options accumulated previously using %x. */
3823 for (i
= 0; i
< n_linker_options
; i
++)
3825 do_spec_1 (linker_options
[i
], 1, NULL_PTR
);
3826 /* Make each accumulated option a separate argument. */
3827 do_spec_1 (" ", 0, NULL_PTR
);
3831 /* Dump out the options accumulated previously using -Wa,. */
3833 for (i
= 0; i
< n_assembler_options
; i
++)
3835 do_spec_1 (assembler_options
[i
], 1, NULL_PTR
);
3836 /* Make each accumulated option a separate argument. */
3837 do_spec_1 (" ", 0, NULL_PTR
);
3841 /* Dump out the options accumulated previously using -Wp,. */
3843 for (i
= 0; i
< n_preprocessor_options
; i
++)
3845 do_spec_1 (preprocessor_options
[i
], 1, NULL_PTR
);
3846 /* Make each accumulated option a separate argument. */
3847 do_spec_1 (" ", 0, NULL_PTR
);
3851 /* Here are digits and numbers that just process
3852 a certain constant string as a spec. */
3855 value
= do_spec_1 (cc1_spec
, 0, NULL_PTR
);
3861 value
= do_spec_1 (cc1plus_spec
, 0, NULL_PTR
);
3867 value
= do_spec_1 (asm_spec
, 0, NULL_PTR
);
3873 value
= do_spec_1 (asm_final_spec
, 0, NULL_PTR
);
3879 value
= do_spec_1 (signed_char_spec
, 0, NULL_PTR
);
3885 value
= do_spec_1 (cpp_spec
, 0, NULL_PTR
);
3891 value
= do_spec_1 (endfile_spec
, 0, NULL_PTR
);
3897 value
= do_spec_1 (link_spec
, 0, NULL_PTR
);
3903 value
= do_spec_1 (lib_spec
, 0, NULL_PTR
);
3909 value
= do_spec_1 (libgcc_spec
, 0, NULL_PTR
);
3916 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
3920 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3924 if (! strncmp (y
, "-D", 2))
3925 /* Copy the whole option. */
3926 while (*y
&& *y
!= ' ' && *y
!= '\t')
3928 else if (*y
== ' ' || *y
== '\t')
3929 /* Copy whitespace to the result. */
3931 /* Don't copy other options. */
3938 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3946 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
3950 /* Copy all of CPP_PREDEFINES into BUF,
3951 but put __ after every -D and at the end of each arg. */
3955 if (! strncmp (y
, "-D", 2))
3963 || (*(y
+1) != '_' && ! ISUPPER (*(y
+1))))
3965 /* Stick __ at front of macro name. */
3968 /* Arrange to stick __ at the end as well. */
3972 /* Copy the macro name. */
3973 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3982 /* Copy the value given, if any. */
3983 while (*y
&& *y
!= ' ' && *y
!= '\t')
3986 else if (*y
== ' ' || *y
== '\t')
3987 /* Copy whitespace to the result. */
3989 /* Don't copy -A options */
3995 /* Copy all of CPP_PREDEFINES into BUF,
3996 but put __ after every -D. */
4000 if (! strncmp (y
, "-D", 2))
4005 || (*(y
+1) != '_' && ! ISUPPER (*(y
+1))))
4007 /* Stick -D__ at front of macro name. */
4013 /* Copy the macro name. */
4014 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4017 /* Copy the value given, if any. */
4018 while (*y
&& *y
!= ' ' && *y
!= '\t')
4023 /* Do not copy this macro - we have just done it before */
4024 while (*y
&& *y
!= ' ' && *y
!= '\t')
4028 else if (*y
== ' ' || *y
== '\t')
4029 /* Copy whitespace to the result. */
4031 /* Don't copy -A options */
4037 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4041 if (! strncmp (y
, "-A", 2))
4042 /* Copy the whole option. */
4043 while (*y
&& *y
!= ' ' && *y
!= '\t')
4045 else if (*y
== ' ' || *y
== '\t')
4046 /* Copy whitespace to the result. */
4048 /* Don't copy other options. */
4055 value
= do_spec_1 (buf
, 0, NULL_PTR
);
4062 value
= do_spec_1 (startfile_spec
, 0, NULL_PTR
);
4067 /* Here we define characters other than letters and digits. */
4070 p
= handle_braces (p
);
4076 obstack_1grow (&obstack
, '%');
4080 do_spec_1 (soft_matched_part
, 1, NULL_PTR
);
4081 do_spec_1 (" ", 0, NULL_PTR
);
4084 /* Process a string found as the value of a spec given by name.
4085 This feature allows individual machine descriptions
4086 to add and use their own specs.
4087 %[...] modifies -D options the way %P does;
4088 %(...) uses the spec unmodified. */
4090 error ("Warning: use of obsolete %%[ operator in specs");
4094 struct spec_list
*sl
;
4097 /* The string after the S/P is the name of a spec that is to be
4099 while (*p
&& *p
!= ')' && *p
!= ']')
4102 /* See if it's in the list */
4103 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
4104 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
4106 name
= *(sl
->ptr_spec
);
4108 fprintf (stderr
, "Processing spec %c%s%c, which is '%s'\n",
4109 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
4118 value
= do_spec_1 (name
, 0, NULL_PTR
);
4124 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
4129 /* Copy all of NAME into BUF, but put __ after
4130 every -D and at the end of each arg, */
4133 if (! strncmp (y
, "-D", 2))
4143 else if (flag
&& (*y
== ' ' || *y
== '\t' || *y
== '='
4144 || *y
== '}' || *y
== 0))
4157 value
= do_spec_1 (buf
, 0, NULL_PTR
);
4163 /* Discard the closing paren or bracket. */
4171 int c1
= *p
++; /* Select first or second version number. */
4172 char *v
= compiler_version
;
4175 /* The format of the version string is
4176 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4178 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4179 while (! ISDIGIT (*v
))
4181 if (v
> compiler_version
&& v
[-1] != '-')
4184 /* If desired, advance to second version number. */
4187 /* Set V after the first period. */
4188 while (ISDIGIT (*v
))
4195 /* Set Q at the next period or at the end. */
4197 while (ISDIGIT (*q
))
4199 if (*q
!= 0 && *q
!= ' ' && *q
!= '.' && *q
!= '-')
4202 /* Put that part into the command. */
4203 obstack_grow (&obstack
, v
, q
- v
);
4209 if (input_from_pipe
)
4210 do_spec_1 ("-", 0, NULL_PTR
);
4219 /* Backslash: treat next character as ordinary. */
4224 /* Ordinary character: put it into the current argument. */
4225 obstack_1grow (&obstack
, c
);
4229 return 0; /* End of string */
4232 /* Return 0 if we call do_spec_1 and that returns -1. */
4238 char *filter
, *body
= NULL
, *endbody
;
4242 int include_blanks
= 1;
4245 /* A '^' after the open-brace means to not give blanks before args. */
4246 include_blanks
= 0, ++p
;
4249 /* A `|' after the open-brace means,
4250 if the test fails, output a single minus sign rather than nothing.
4251 This is used in %{|!pipe:...}. */
4255 negate
= suffix
= 0;
4258 /* A `!' after the open-brace negates the condition:
4259 succeed if the specified switch is not present. */
4263 /* A `.' after the open-brace means test against the current suffix. */
4273 while (*p
!= ':' && *p
!= '}' && *p
!= '|') p
++;
4275 if (*p
== '|' && pipe_p
)
4282 register int count
= 1;
4283 register char *q
= p
;
4285 while (*q
++ != ':') continue;
4301 body
= p
, endbody
= p
+1;
4306 int found
= (input_suffix
!= 0
4307 && strlen (input_suffix
) == p
- filter
4308 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
4314 && do_spec_1 (save_string (body
, endbody
-body
-1), 0, NULL_PTR
) < 0)
4317 else if (p
[-1] == '*' && p
[0] == '}')
4319 /* Substitute all matching switches as separate args. */
4322 for (i
= 0; i
< n_switches
; i
++)
4323 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4324 && check_live_switch (i
, p
- filter
))
4325 give_switch (i
, 0, include_blanks
);
4329 /* Test for presence of the specified switch. */
4333 /* If name specified ends in *, as in {x*:...},
4334 check for %* and handle that case. */
4335 if (p
[-1] == '*' && !negate
)
4340 /* First see whether we have %*. */
4344 if (*r
== '%' && r
[1] == '*')
4348 /* If we do, handle that case. */
4351 /* Substitute all matching switches as separate args.
4352 But do this by substituting for %*
4353 in the text that follows the colon. */
4355 unsigned hard_match_len
= p
- filter
- 1;
4356 char *string
= save_string (body
, endbody
- body
- 1);
4358 for (i
= 0; i
< n_switches
; i
++)
4359 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4360 && check_live_switch (i
, -1))
4362 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
4363 /* Pass any arguments this switch has. */
4364 give_switch (i
, 1, 1);
4367 /* We didn't match. Try again. */
4374 /* If name specified ends in *, as in {x*:...},
4375 check for presence of any switch name starting with x. */
4378 for (i
= 0; i
< n_switches
; i
++)
4380 unsigned hard_match_len
= p
- filter
- 1;
4382 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4383 && check_live_switch (i
, hard_match_len
))
4389 /* Otherwise, check for presence of exact name specified. */
4392 for (i
= 0; i
< n_switches
; i
++)
4394 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4395 && switches
[i
].part1
[p
- filter
] == 0
4396 && check_live_switch (i
, -1))
4404 /* If it is as desired (present for %{s...}, absent for %{!s...})
4405 then substitute either the switch or the specified
4406 conditional text. */
4407 if (present
!= negate
)
4411 give_switch (i
, 0, include_blanks
);
4415 if (do_spec_1 (save_string (body
, endbody
- body
- 1),
4422 /* Here if a %{|...} conditional fails: output a minus sign,
4423 which means "standard output" or "standard input". */
4424 do_spec_1 ("-", 0, NULL_PTR
);
4429 /* We didn't match; try again. */
4436 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4437 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4438 spec, or -1 if either exact match or %* is used.
4440 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4441 whose value does not begin with "no-" is obsoleted by the same value
4442 with the "no-", similarly for a switch with the "no-" prefix. */
4445 check_live_switch (switchnum
, prefix_length
)
4449 char *name
= switches
[switchnum
].part1
;
4452 /* In the common case of {<at-most-one-letter>*}, a negating
4453 switch would always match, so ignore that case. We will just
4454 send the conflicting switches to the compiler phase. */
4455 if (prefix_length
>= 0 && prefix_length
<= 1)
4458 /* If we already processed this switch and determined if it was
4459 live or not, return our past determination. */
4460 if (switches
[switchnum
].live_cond
!= 0)
4461 return switches
[switchnum
].live_cond
> 0;
4463 /* Now search for duplicate in a manner that depends on the name. */
4467 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4468 if (switches
[i
].part1
[0] == 'O')
4470 switches
[switchnum
].valid
= 1;
4471 switches
[switchnum
].live_cond
= -1;
4476 case 'W': case 'f': case 'm':
4477 if (! strncmp (name
+ 1, "no-", 3))
4479 /* We have Xno-YYY, search for XYYY. */
4480 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4481 if (switches
[i
].part1
[0] == name
[0]
4482 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
4484 switches
[switchnum
].valid
= 1;
4485 switches
[switchnum
].live_cond
= -1;
4491 /* We have XYYY, search for Xno-YYY. */
4492 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4493 if (switches
[i
].part1
[0] == name
[0]
4494 && switches
[i
].part1
[1] == 'n'
4495 && switches
[i
].part1
[2] == 'o'
4496 && switches
[i
].part1
[3] == '-'
4497 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
4499 switches
[switchnum
].valid
= 1;
4500 switches
[switchnum
].live_cond
= -1;
4507 /* Otherwise the switch is live. */
4508 switches
[switchnum
].live_cond
= 1;
4512 /* Pass a switch to the current accumulating command
4513 in the same form that we received it.
4514 SWITCHNUM identifies the switch; it is an index into
4515 the vector of switches gcc received, which is `switches'.
4516 This cannot fail since it never finishes a command line.
4518 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4520 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
4524 give_switch (switchnum
, omit_first_word
, include_blanks
)
4526 int omit_first_word
;
4529 if (!omit_first_word
)
4531 do_spec_1 ("-", 0, NULL_PTR
);
4532 do_spec_1 (switches
[switchnum
].part1
, 1, NULL_PTR
);
4535 if (switches
[switchnum
].args
!= 0)
4538 for (p
= switches
[switchnum
].args
; *p
; p
++)
4541 do_spec_1 (" ", 0, NULL_PTR
);
4542 do_spec_1 (*p
, 1, NULL_PTR
);
4546 do_spec_1 (" ", 0, NULL_PTR
);
4547 switches
[switchnum
].valid
= 1;
4550 /* Search for a file named NAME trying various prefixes including the
4551 user's -B prefix and some standard ones.
4552 Return the absolute file name found. If nothing is found, return NAME. */
4560 /* Try multilib_dir if it is defined. */
4561 if (multilib_dir
!= NULL
)
4565 try = (char *) alloca (strlen (multilib_dir
) + strlen (name
) + 2);
4566 strcpy (try, multilib_dir
);
4567 strcat (try, dir_separator_str
);
4570 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
4572 /* If we don't find it in the multi library dir, then fall
4573 through and look for it in the normal places. */
4574 if (newname
!= NULL
)
4578 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
4579 return newname
? newname
: name
;
4582 /* Determine whether a directory exists. If LINKER, return 0 for
4583 certain fixed names not needed by the linker. If not LINKER, it is
4584 only important to return 0 if the host machine has a small ARG_MAX
4588 is_directory (path1
, path2
, linker
)
4593 int len1
= strlen (path1
);
4594 int len2
= strlen (path2
);
4595 char *path
= (char *) alloca (3 + len1
+ len2
);
4599 #ifndef SMALL_ARG_MAX
4604 /* Construct the path from the two parts. Ensure the string ends with "/.".
4605 The resulting path will be a directory even if the given path is a
4607 memcpy (path
, path1
, len1
);
4608 memcpy (path
+ len1
, path2
, len2
);
4609 cp
= path
+ len1
+ len2
;
4610 if (cp
[-1] != '/' && cp
[-1] != DIR_SEPARATOR
)
4611 *cp
++ = DIR_SEPARATOR
;
4615 /* Exclude directories that the linker is known to search. */
4618 && strcmp (path
, concat (dir_separator_str
, "lib",
4619 dir_separator_str
, ".", NULL_PTR
)) == 0)
4621 && strcmp (path
, concat (dir_separator_str
, "usr",
4622 dir_separator_str
, "lib",
4623 dir_separator_str
, ".", NULL_PTR
)) == 0)))
4626 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
4629 /* On fatal signals, delete all the temporary files. */
4632 fatal_error (signum
)
4635 signal (signum
, SIG_DFL
);
4636 delete_failure_queue ();
4637 delete_temp_files ();
4638 /* Get the same signal again, this time not handled,
4639 so its normal effect occurs. */
4640 kill (getpid (), signum
);
4651 int linker_was_run
= 0;
4652 char *explicit_link_files
;
4655 struct user_specs
*uptr
;
4657 p
= argv
[0] + strlen (argv
[0]);
4658 while (p
!= argv
[0] && p
[-1] != '/' && p
[-1] != DIR_SEPARATOR
) --p
;
4661 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
4662 signal (SIGINT
, fatal_error
);
4664 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
4665 signal (SIGHUP
, fatal_error
);
4667 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
4668 signal (SIGTERM
, fatal_error
);
4670 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
4671 signal (SIGPIPE
, fatal_error
);
4675 argbuf
= (char **) xmalloc (argbuf_length
* sizeof (char *));
4677 obstack_init (&obstack
);
4679 /* Build multilib_select, et. al from the separate lines that make up each
4680 multilib selection. */
4682 char **q
= multilib_raw
;
4685 obstack_init (&multilib_obstack
);
4686 while ((p
= *q
++) != (char *) 0)
4687 obstack_grow (&multilib_obstack
, p
, strlen (p
));
4689 obstack_1grow (&multilib_obstack
, 0);
4690 multilib_select
= obstack_finish (&multilib_obstack
);
4692 q
= multilib_matches_raw
;
4693 while ((p
= *q
++) != (char *) 0)
4694 obstack_grow (&multilib_obstack
, p
, strlen (p
));
4696 obstack_1grow (&multilib_obstack
, 0);
4697 multilib_matches
= obstack_finish (&multilib_obstack
);
4701 i
< sizeof (multilib_defaults_raw
) / sizeof (multilib_defaults_raw
[0]);
4705 obstack_1grow (&multilib_obstack
, ' ');
4706 obstack_grow (&multilib_obstack
,
4707 multilib_defaults_raw
[i
],
4708 strlen (multilib_defaults_raw
[i
]));
4712 obstack_1grow (&multilib_obstack
, 0);
4713 multilib_defaults
= obstack_finish (&multilib_obstack
);
4716 /* Set up to remember the pathname of gcc and any options
4717 needed for collect. We use argv[0] instead of programname because
4718 we need the complete pathname. */
4719 obstack_init (&collect_obstack
);
4720 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4721 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0])+1);
4722 putenv (obstack_finish (&collect_obstack
));
4724 #ifdef INIT_ENVIRONMENT
4725 /* Set up any other necessary machine specific environment variables. */
4726 putenv (INIT_ENVIRONMENT
);
4729 /* Choose directory for temp files. */
4731 #ifndef MKTEMP_EACH_FILE
4732 temp_filename
= choose_temp_base ();
4733 temp_filename_length
= strlen (temp_filename
);
4736 /* Make a table of what switches there are (switches, n_switches).
4737 Make a table of specified input files (infiles, n_infiles).
4738 Decode switches that are handled locally. */
4740 process_command (argc
, argv
);
4745 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4747 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4748 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4751 for (i
= 0; i
< n_switches
; i
++)
4756 obstack_grow (&collect_obstack
, " ", 1);
4759 obstack_grow (&collect_obstack
, "'-", 2);
4760 q
= switches
[i
].part1
;
4761 while ((p
= index (q
,'\'')))
4763 obstack_grow (&collect_obstack
, q
, p
-q
);
4764 obstack_grow (&collect_obstack
, "'\\''", 4);
4767 obstack_grow (&collect_obstack
, q
, strlen (q
));
4768 obstack_grow (&collect_obstack
, "'", 1);
4770 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4772 obstack_grow (&collect_obstack
, " '", 2);
4774 while ((p
= index (q
,'\'')))
4776 obstack_grow (&collect_obstack
, q
, p
-q
);
4777 obstack_grow (&collect_obstack
, "'\\''", 4);
4780 obstack_grow (&collect_obstack
, q
, strlen (q
));
4781 obstack_grow (&collect_obstack
, "'", 1);
4784 obstack_grow (&collect_obstack
, "\0", 1);
4785 putenv (obstack_finish (&collect_obstack
));
4788 /* Initialize the vector of specs to just the default.
4789 This means one element containing 0s, as a terminator. */
4791 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
4792 bcopy ((char *) default_compilers
, (char *) compilers
,
4793 sizeof default_compilers
);
4794 n_compilers
= n_default_compilers
;
4796 /* Read specs from a file if there is one. */
4798 machine_suffix
= concat (spec_machine
, dir_separator_str
,
4799 spec_version
, dir_separator_str
, NULL_PTR
);
4800 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL_PTR
);
4802 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
4803 /* Read the specs file unless it is a default one. */
4804 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
4805 read_specs (specs_file
, TRUE
);
4809 /* We need to check standard_exec_prefix/just_machine_suffix/specs
4810 for any override of as, ld and libraries. */
4811 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
4812 + strlen (just_machine_suffix
)
4813 + sizeof ("specs"));
4815 strcpy (specs_file
, standard_exec_prefix
);
4816 strcat (specs_file
, just_machine_suffix
);
4817 strcat (specs_file
, "specs");
4818 if (access (specs_file
, R_OK
) == 0)
4819 read_specs (specs_file
, TRUE
);
4821 /* Process any user specified specs in the order given on the command
4823 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
4825 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
, R_OK
);
4826 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
4829 /* If not cross-compiling, look for startfiles in the standard places. */
4830 /* The fact that these are done here, after reading the specs file,
4831 means that it cannot be found in these directories.
4832 But that's okay. It should never be there anyway. */
4833 if (*cross_compile
== '0')
4835 #ifdef MD_EXEC_PREFIX
4836 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
4837 add_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
4840 #ifdef MD_STARTFILE_PREFIX
4841 add_prefix (&startfile_prefixes
, md_startfile_prefix
, "GCC",
4845 #ifdef MD_STARTFILE_PREFIX_1
4846 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, "GCC",
4850 /* If standard_startfile_prefix is relative, base it on
4851 standard_exec_prefix. This lets us move the installed tree
4852 as a unit. If GCC_EXEC_PREFIX is defined, base
4853 standard_startfile_prefix on that as well. */
4854 if (*standard_startfile_prefix
== '/'
4855 || *standard_startfile_prefix
== DIR_SEPARATOR
4856 || *standard_startfile_prefix
== '$'
4858 /* Check for disk name on MS-DOS-based systems. */
4859 || (standard_startfile_prefix
[1] == ':'
4860 && (standard_startfile_prefix
[2] == DIR_SEPARATOR
4861 || standard_startfile_prefix
[2] == '/'))
4864 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, "BINUTILS",
4868 if (gcc_exec_prefix
)
4869 add_prefix (&startfile_prefixes
,
4870 concat (gcc_exec_prefix
, machine_suffix
,
4871 standard_startfile_prefix
, NULL_PTR
),
4872 NULL_PTR
, 0, 0, NULL_PTR
);
4873 add_prefix (&startfile_prefixes
,
4874 concat (standard_exec_prefix
,
4876 standard_startfile_prefix
, NULL_PTR
),
4877 NULL_PTR
, 0, 0, NULL_PTR
);
4880 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
4881 "BINUTILS", 0, 0, NULL_PTR
);
4882 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
4883 "BINUTILS", 0, 0, NULL_PTR
);
4884 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4885 add_prefix (&startfile_prefixes
, "./", NULL_PTR
, 0, 1, NULL_PTR
);
4890 if (*standard_startfile_prefix
!= DIR_SEPARATOR
&& gcc_exec_prefix
)
4891 add_prefix (&startfile_prefixes
,
4892 concat (gcc_exec_prefix
, machine_suffix
,
4893 standard_startfile_prefix
, NULL_PTR
),
4894 "BINUTILS", 0, 0, NULL_PTR
);
4897 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4898 if (gcc_exec_prefix
)
4900 char * temp
= (char *) xmalloc (strlen (gcc_exec_prefix
)
4901 + strlen (spec_version
)
4902 + strlen (spec_machine
) + 3);
4903 strcpy (temp
, gcc_exec_prefix
);
4904 strcat (temp
, spec_machine
);
4905 strcat (temp
, dir_separator_str
);
4906 strcat (temp
, spec_version
);
4907 strcat (temp
, dir_separator_str
);
4908 gcc_exec_prefix
= temp
;
4911 /* Now we have the specs.
4912 Set the `valid' bits for switches that match anything in any spec. */
4914 validate_all_switches ();
4916 /* Now that we have the switches and the specs, set
4917 the subdirectory based on the options. */
4918 set_multilib_dir ();
4920 /* Warn about any switches that no pass was interested in. */
4922 for (i
= 0; i
< n_switches
; i
++)
4923 if (! switches
[i
].valid
)
4924 error ("unrecognized option `-%s'", switches
[i
].part1
);
4926 /* Obey some of the options. */
4928 if (print_search_dirs
)
4930 printf ("install: %s%s\n", standard_exec_prefix
, machine_suffix
);
4931 printf ("programs: %s\n", build_search_list (&exec_prefixes
, "", 0));
4932 printf ("libraries: %s\n", build_search_list (&startfile_prefixes
, "", 0));
4936 if (print_file_name
)
4938 printf ("%s\n", find_file (print_file_name
));
4942 if (print_prog_name
)
4944 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
4945 printf ("%s\n", (newname
? newname
: print_prog_name
));
4949 if (print_multi_lib
)
4951 print_multilib_info ();
4955 if (print_multi_directory
)
4957 if (multilib_dir
== NULL
)
4960 printf ("%s\n", multilib_dir
);
4964 if (print_help_list
)
4970 printf ("\nReport bugs to egcs-bugs@cygnus.com.\n");
4971 printf ("Please see the file BUGS (included with the sources) first.\n");
4976 /* We do not exit here. Instead we have created a fake input file
4977 called 'help-dummy' which needs to be compiled, and we pass this
4978 on the the various sub-processes, along with the --help switch. */
4985 /* compiler_version is truncated at the first space when initialized
4986 from version string, so truncate version_string at the first space
4987 before comparing. */
4988 for (n
= 0; version_string
[n
]; n
++)
4989 if (version_string
[n
] == ' ')
4992 if (! strncmp (version_string
, compiler_version
, n
)
4993 && compiler_version
[n
] == 0)
4994 fprintf (stderr
, "gcc version %s\n", version_string
);
4996 fprintf (stderr
, "gcc driver version %s executing gcc version %s\n",
4997 version_string
, compiler_version
);
5003 if (n_infiles
== added_libraries
)
5004 fatal ("No input files");
5006 /* Make a place to record the compiler output file names
5007 that correspond to the input files. */
5010 #ifdef LANG_SPECIFIC_DRIVER
5011 i
+= lang_specific_extra_outfiles
;
5013 outfiles
= (char **) xmalloc (i
* sizeof (char *));
5014 bzero ((char *) outfiles
, i
* sizeof (char *));
5016 /* Record which files were specified explicitly as link input. */
5018 explicit_link_files
= xmalloc (n_infiles
);
5019 bzero (explicit_link_files
, n_infiles
);
5021 for (i
= 0; i
< n_infiles
; i
++)
5023 register struct compiler
*cp
= 0;
5024 int this_file_error
= 0;
5026 /* Tell do_spec what to substitute for %i. */
5028 input_filename
= infiles
[i
].name
;
5029 input_filename_length
= strlen (input_filename
);
5030 input_file_number
= i
;
5032 /* Use the same thing in %o, unless cp->spec says otherwise. */
5034 outfiles
[i
] = input_filename
;
5036 /* Figure out which compiler from the file's suffix. */
5038 cp
= lookup_compiler (infiles
[i
].name
, input_filename_length
,
5039 infiles
[i
].language
);
5043 /* Ok, we found an applicable compiler. Run its spec. */
5044 /* First say how much of input_filename to substitute for %b */
5048 if (cp
->spec
[0][0] == '#')
5049 error ("%s: %s compiler not installed on this system",
5050 input_filename
, &cp
->spec
[0][1]);
5052 input_basename
= input_filename
;
5053 for (p
= input_filename
; *p
; p
++)
5054 if (*p
== '/' || *p
== DIR_SEPARATOR
)
5055 input_basename
= p
+ 1;
5057 /* Find a suffix starting with the last period,
5058 and set basename_length to exclude that suffix. */
5059 basename_length
= strlen (input_basename
);
5060 p
= input_basename
+ basename_length
;
5061 while (p
!= input_basename
&& *p
!= '.') --p
;
5062 if (*p
== '.' && p
!= input_basename
)
5064 basename_length
= p
- input_basename
;
5065 input_suffix
= p
+ 1;
5071 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
5073 len
+= strlen (cp
->spec
[j
]);
5075 p
= (char *) xmalloc (len
+ 1);
5078 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
5081 strcpy (p
+ len
, cp
->spec
[j
]);
5082 len
+= strlen (cp
->spec
[j
]);
5085 value
= do_spec (p
);
5088 this_file_error
= 1;
5091 /* If this file's name does not contain a recognized suffix,
5092 record it as explicit linker input. */
5095 explicit_link_files
[i
] = 1;
5097 /* Clear the delete-on-failure queue, deleting the files in it
5098 if this compilation failed. */
5100 if (this_file_error
)
5102 delete_failure_queue ();
5105 /* If this compilation succeeded, don't delete those files later. */
5106 clear_failure_queue ();
5109 #ifdef LANG_SPECIFIC_DRIVER
5110 if (error_count
== 0)
5112 /* Make sure INPUT_FILE_NUMBER points to first available open
5114 input_file_number
= n_infiles
;
5115 if (lang_specific_pre_link ())
5120 /* Run ld to link all the compiler output files. */
5122 if (error_count
== 0)
5124 int tmp
= execution_count
;
5126 /* We'll use ld if we can't find collect2. */
5127 if (! strcmp (linker_name_spec
, "collect2"))
5129 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
);
5131 linker_name_spec
= "ld";
5133 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5135 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH=");
5136 putenv_from_prefixes (&startfile_prefixes
, "LIBRARY_PATH=");
5138 value
= do_spec (link_command_spec
);
5141 linker_was_run
= (tmp
!= execution_count
);
5144 /* Warn if a -B option was specified but the prefix was never used. */
5145 unused_prefix_warnings (&exec_prefixes
);
5146 unused_prefix_warnings (&startfile_prefixes
);
5148 /* If options said don't run linker,
5149 complain about input files to be given to the linker. */
5151 if (! linker_was_run
&& error_count
== 0)
5152 for (i
= 0; i
< n_infiles
; i
++)
5153 if (explicit_link_files
[i
])
5154 error ("%s: linker input file unused since linking not done",
5157 /* Delete some or all of the temporary files we made. */
5160 delete_failure_queue ();
5161 delete_temp_files ();
5163 if (print_help_list
)
5165 printf ("\nReport bugs to egcs-bugs@cygnus.com.\n");
5166 printf ("Please see the file BUGS (included with the sources) first.\n");
5169 exit (error_count
> 0 ? (signal_count
? 2 : 1) : 0);
5174 /* Find the proper compilation spec for the file name NAME,
5175 whose length is LENGTH. LANGUAGE is the specified language,
5176 or 0 if this file is to be passed to the linker. */
5178 static struct compiler
*
5179 lookup_compiler (name
, length
, language
)
5184 struct compiler
*cp
;
5186 /* If this was specified by the user to be a linker input, indicate that. */
5187 if (language
!= 0 && language
[0] == '*')
5190 /* Otherwise, look for the language, if one is spec'd. */
5193 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
5194 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
5197 error ("language %s not recognized", language
);
5201 /* Look for a suffix. */
5202 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
5204 if (/* The suffix `-' matches only the file name `-'. */
5205 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
5206 || (strlen (cp
->suffix
) < length
5207 /* See if the suffix matches the end of NAME. */
5209 && ((!strcmp (cp
->suffix
,
5210 name
+ length
- strlen (cp
->suffix
))
5211 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
5212 && !strcasecmp (cp
->suffix
,
5213 name
+ length
- strlen (cp
->suffix
)))
5215 && !strcmp (cp
->suffix
,
5216 name
+ length
- strlen (cp
->suffix
))
5220 if (cp
->spec
[0][0] == '@')
5222 struct compiler
*new;
5224 /* An alias entry maps a suffix to a language.
5225 Search for the language; pass 0 for NAME and LENGTH
5226 to avoid infinite recursion if language not found.
5227 Construct the new compiler spec. */
5228 language
= cp
->spec
[0] + 1;
5229 new = (struct compiler
*) xmalloc (sizeof (struct compiler
));
5230 new->suffix
= cp
->suffix
;
5231 bcopy ((char *) lookup_compiler (NULL_PTR
, 0, language
)->spec
,
5232 (char *) new->spec
, sizeof new->spec
);
5236 /* A non-alias entry: return it. */
5248 register char *value
= (char *) malloc (size
);
5250 fatal ("virtual memory exhausted");
5255 xrealloc (ptr
, size
)
5259 register char *value
= (char *) realloc (ptr
, size
);
5261 fatal ("virtual memory exhausted");
5265 /* This function is based on the one in libiberty. */
5268 concat
VPROTO((char *first
, ...))
5270 register int length
;
5271 register char *newstr
;
5279 /* First compute the size of the result and get sufficient memory. */
5281 VA_START (args
, first
);
5283 first
= va_arg (args
, char *);
5291 length
+= strlen (arg
);
5292 arg
= va_arg (args
, char *);
5295 newstr
= (char *) xmalloc (length
+ 1);
5298 /* Now copy the individual pieces to the result string. */
5300 VA_START (args
, first
);
5302 first
= va_arg (args
, char *);
5311 arg
= va_arg (args
, char *);
5320 save_string (s
, len
)
5324 register char *result
= xmalloc (len
+ 1);
5326 bcopy (s
, result
, len
);
5332 pfatal_with_name (name
)
5335 fatal ("%s: %s", name
, my_strerror (errno
));
5339 perror_with_name (name
)
5342 error ("%s: %s", name
, my_strerror (errno
));
5346 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
5350 int save_errno
= errno
;
5354 /* Space for trailing '\0' is in %s. */
5355 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
5356 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
5360 fatal ("%s: %s", errmsg_fmt
, my_strerror (save_errno
));
5363 /* More 'friendly' abort that prints the line and file.
5364 config.h can #define abort fancy_abort if you like that sort of thing. */
5369 fatal ("Internal gcc abort.");
5372 /* Output an error message and exit */
5375 fatal
VPROTO((char *format
, ...))
5382 VA_START (ap
, format
);
5385 format
= va_arg (ap
, char *);
5388 fprintf (stderr
, "%s: ", programname
);
5389 vfprintf (stderr
, format
, ap
);
5391 fprintf (stderr
, "\n");
5392 delete_temp_files ();
5397 error
VPROTO((char *format
, ...))
5404 VA_START (ap
, format
);
5407 format
= va_arg (ap
, char *);
5410 fprintf (stderr
, "%s: ", programname
);
5411 vfprintf (stderr
, format
, ap
);
5414 fprintf (stderr
, "\n");
5418 validate_all_switches ()
5420 struct compiler
*comp
;
5423 struct spec_list
*spec
;
5425 for (comp
= compilers
; comp
->spec
[0]; comp
++)
5428 for (i
= 0; i
< sizeof comp
->spec
/ sizeof comp
->spec
[0] && comp
->spec
[i
]; i
++)
5432 if (c
== '%' && *p
== '{')
5433 /* We have a switch spec. */
5434 validate_switches (p
+ 1);
5438 /* look through the linked list of specs read from the specs file */
5439 for (spec
= specs
; spec
; spec
= spec
->next
)
5441 p
= *(spec
->ptr_spec
);
5443 if (c
== '%' && *p
== '{')
5444 /* We have a switch spec. */
5445 validate_switches (p
+ 1);
5448 p
= link_command_spec
;
5450 if (c
== '%' && *p
== '{')
5451 /* We have a switch spec. */
5452 validate_switches (p
+ 1);
5455 /* Look at the switch-name that comes after START
5456 and mark as valid all supplied switches that match it. */
5459 validate_switches (start
)
5462 register char *p
= start
;
5477 while (*p
!= ':' && *p
!= '}') p
++;
5481 else if (p
[-1] == '*')
5483 /* Mark all matching switches as valid. */
5485 for (i
= 0; i
< n_switches
; i
++)
5486 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
))
5487 switches
[i
].valid
= 1;
5491 /* Mark an exact matching switch as valid. */
5492 for (i
= 0; i
< n_switches
; i
++)
5494 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
5495 && switches
[i
].part1
[p
- filter
] == 0)
5496 switches
[i
].valid
= 1;
5501 /* Check whether a particular argument was used. The first time we
5502 canonicalize the switches to keep only the ones we care about. */
5516 static struct mswitchstr
*mswitches
;
5517 static int n_mswitches
;
5522 struct mswitchstr
*matches
;
5526 /* Break multilib_matches into the component strings of string and replacement
5528 for (q
= multilib_matches
; *q
!= '\0'; q
++)
5532 matches
= (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
5534 q
= multilib_matches
;
5545 matches
[i
].len
= q
- matches
[i
].str
;
5547 matches
[i
].replace
= ++q
;
5548 while (*q
!= ';' && *q
!= '\0')
5554 matches
[i
].rep_len
= q
- matches
[i
].replace
;
5562 /* Now build a list of the replacement string for switches that we care
5563 about. Make sure we allocate at least one entry. This prevents
5564 xmalloc from calling fatal, and prevents us from re-executing this
5567 = (struct mswitchstr
*) xmalloc ((sizeof (struct mswitchstr
))
5568 * (n_switches
? n_switches
: 1));
5569 for (i
= 0; i
< n_switches
; i
++)
5571 int xlen
= strlen (switches
[i
].part1
);
5572 for (j
= 0; j
< cnt
; j
++)
5573 if (xlen
== matches
[j
].len
&& ! strcmp (switches
[i
].part1
, matches
[j
].str
))
5575 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
5576 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
5577 mswitches
[n_mswitches
].replace
= (char *)0;
5578 mswitches
[n_mswitches
].rep_len
= 0;
5585 for (i
= 0; i
< n_mswitches
; i
++)
5586 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
5593 default_arg (p
, len
)
5599 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+1)
5601 while (*start
== ' ' || *start
== '\t')
5607 for (end
= start
+1; *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
5610 if ((end
- start
) == len
&& strncmp (p
, start
, len
) == 0)
5620 /* Work out the subdirectory to use based on the
5621 options. The format of multilib_select is a list of elements.
5622 Each element is a subdirectory name followed by a list of options
5623 followed by a semicolon. gcc will consider each line in turn. If
5624 none of the options beginning with an exclamation point are
5625 present, and all of the other options are present, that
5626 subdirectory will be used. */
5631 char *p
= multilib_select
;
5633 char *this_path
, *this_arg
;
5639 /* Ignore newlines. */
5646 /* Get the initial path. */
5654 this_path_len
= p
- this_path
;
5656 /* Check the arguments. */
5671 while (*p
!= ' ' && *p
!= ';')
5678 if (*this_arg
!= '!')
5686 /* If this is a default argument, we can just ignore it.
5687 This is true even if this_arg begins with '!'. Beginning
5688 with '!' does not mean that this argument is necessarily
5689 inappropriate for this library: it merely means that
5690 there is a more specific library which uses this
5691 argument. If this argument is a default, we need not
5692 consider that more specific library. */
5693 if (! default_arg (this_arg
, p
- this_arg
))
5695 ok
= used_arg (this_arg
, p
- this_arg
);
5706 if (this_path_len
!= 1
5707 || this_path
[0] != '.')
5709 multilib_dir
= xmalloc (this_path_len
+ 1);
5710 strncpy (multilib_dir
, this_path
, this_path_len
);
5711 multilib_dir
[this_path_len
] = '\0';
5720 /* Print out the multiple library subdirectory selection
5721 information. This prints out a series of lines. Each line looks
5722 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5723 required. Only the desired options are printed out, the negative
5724 matches. The options are print without a leading dash. There are
5725 no spaces to make it easy to use the information in the shell.
5726 Each subdirectory is printed only once. This assumes the ordering
5727 generated by the genmultilib script. */
5730 print_multilib_info ()
5732 char *p
= multilib_select
;
5733 char *last_path
= 0, *this_path
;
5735 int last_path_len
= 0;
5739 /* Ignore newlines. */
5746 /* Get the initial path. */
5755 /* If this is a duplicate, skip it. */
5756 skip
= (last_path
!= 0 && p
- this_path
== last_path_len
5757 && ! strncmp (last_path
, this_path
, last_path_len
));
5759 last_path
= this_path
;
5760 last_path_len
= p
- this_path
;
5762 /* If this directory requires any default arguments, we can skip
5763 it. We will already have printed a directory identical to
5764 this one which does not require that default argument. */
5782 while (*q
!= ' ' && *q
!= ';')
5790 && default_arg (arg
, q
- arg
))
5805 for (p1
= last_path
; p1
< p
; p1
++)
5824 use_arg
= *p
!= '!';
5829 while (*p
!= ' ' && *p
!= ';')
5844 /* If there are extra options, print them now */
5845 if (multilib_extra
&& *multilib_extra
)
5847 int print_at
= TRUE
;
5850 for (q
= multilib_extra
; *q
!= '\0'; q
++)