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] == '-')
948 /* Find a mapping that applies to this option. */
949 for (j
= 0; j
< sizeof (option_map
) / sizeof (option_map
[0]); j
++)
951 size_t optlen
= strlen (option_map
[j
].name
);
952 size_t arglen
= strlen (argv
[i
]);
953 size_t complen
= arglen
> optlen
? optlen
: arglen
;
954 char *arginfo
= option_map
[j
].arg_info
;
959 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
967 k
< sizeof (option_map
) / sizeof (option_map
[0]);
969 if (strlen (option_map
[k
].name
) >= arglen
970 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
972 error ("Ambiguous abbreviation %s", argv
[i
]);
976 if (k
!= sizeof (option_map
) / sizeof (option_map
[0]))
982 /* If the option has an argument, accept that. */
983 if (argv
[i
][optlen
] == '=')
984 arg
= argv
[i
] + optlen
+ 1;
986 /* If this mapping requires extra text at end of name,
987 accept that as "argument". */
988 else if (index (arginfo
, '*') != 0)
989 arg
= argv
[i
] + optlen
;
991 /* Otherwise, extra text at end means mismatch.
992 Try other mappings. */
997 else if (index (arginfo
, '*') != 0)
999 error ("Incomplete `%s' option", option_map
[j
].name
);
1003 /* Handle arguments. */
1004 if (index (arginfo
, 'a') != 0)
1010 error ("Missing argument to `%s' option",
1011 option_map
[j
].name
);
1018 else if (index (arginfo
, '*') != 0)
1020 else if (index (arginfo
, 'o') == 0)
1023 error ("Extraneous argument to `%s' option",
1024 option_map
[j
].name
);
1028 /* Store the translation as one argv elt or as two. */
1029 if (arg
!= 0 && index (arginfo
, 'j') != 0)
1030 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1034 newv
[newindex
++] = option_map
[j
].equivalent
;
1035 newv
[newindex
++] = arg
;
1038 newv
[newindex
++] = option_map
[j
].equivalent
;
1046 /* Handle old-fashioned options--just copy them through,
1047 with their arguments. */
1048 else if (argv
[i
][0] == '-')
1050 char *p
= argv
[i
] + 1;
1054 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1055 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1056 else if (WORD_SWITCH_TAKES_ARG (p
))
1057 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1058 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
1061 else if (! strcmp (p
, "Xlinker"))
1064 /* Watch out for an option at the end of the command line that
1065 is missing arguments, and avoid skipping past the end of the
1067 if (nskip
+ i
> argc
)
1072 newv
[newindex
++] = argv
[i
++];
1077 /* Ordinary operands, or +e options. */
1078 newv
[newindex
++] = argv
[i
++];
1091 #ifdef HAVE_STRERROR
1097 static char buffer
[30];
1099 return "cannot access";
1101 if (e
> 0 && e
< sys_nerr
)
1102 return sys_errlist
[e
];
1104 sprintf (buffer
, "Unknown error %d", e
);
1115 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1116 be considered whitespace. */
1117 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1119 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1123 while (*p
!= '\n') p
++;
1133 /* Structure to keep track of the specs that have been defined so far.
1134 These are accessed using %(specname) or %[specname] in a compiler
1139 /* The following 2 fields must be first */
1140 /* to allow EXTRA_SPECS to be initialized */
1141 char *name
; /* name of the spec. */
1142 char *ptr
; /* available ptr if no static pointer */
1144 /* The following fields are not initialized */
1145 /* by EXTRA_SPECS */
1146 char **ptr_spec
; /* pointer to the spec itself. */
1147 struct spec_list
*next
; /* Next spec in linked list. */
1148 int name_len
; /* length of the name */
1149 int alloc_p
; /* whether string was allocated */
1152 #define INIT_STATIC_SPEC(NAME,PTR) \
1153 { NAME, NULL_PTR, PTR, (struct spec_list *)0, sizeof (NAME)-1, 0 }
1155 /* List of statically defined specs */
1156 static struct spec_list static_specs
[] = {
1157 INIT_STATIC_SPEC ("asm", &asm_spec
),
1158 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1159 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1160 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1161 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1162 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1163 INIT_STATIC_SPEC ("link", &link_spec
),
1164 INIT_STATIC_SPEC ("lib", &lib_spec
),
1165 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1166 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1167 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1168 INIT_STATIC_SPEC ("signed_char", &signed_char_spec
),
1169 INIT_STATIC_SPEC ("predefines", &cpp_predefines
),
1170 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1171 INIT_STATIC_SPEC ("version", &compiler_version
),
1172 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1173 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1174 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1175 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1176 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1179 #ifdef EXTRA_SPECS /* additional specs needed */
1180 static struct spec_list extra_specs
[] = { EXTRA_SPECS
};
1183 /* List of dynamically allocates specs that have been defined so far. */
1185 static struct spec_list
*specs
= (struct spec_list
*)0;
1188 /* Initialize the specs lookup routines. */
1193 struct spec_list
*next
= (struct spec_list
*)0;
1194 struct spec_list
*sl
= (struct spec_list
*)0;
1198 return; /* already initialized */
1201 fprintf (stderr
, "Using builtin specs.\n");
1204 for (i
= (sizeof (extra_specs
) / sizeof (extra_specs
[0])) - 1; i
>= 0; i
--)
1206 sl
= &extra_specs
[i
];
1208 sl
->name_len
= strlen (sl
->name
);
1209 sl
->ptr_spec
= &sl
->ptr
;
1214 for (i
= (sizeof (static_specs
) / sizeof (static_specs
[0])) - 1; i
>= 0; i
--)
1216 sl
= &static_specs
[i
];
1225 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1226 removed; If the spec starts with a + then SPEC is added to the end of the
1230 set_spec (name
, spec
)
1234 struct spec_list
*sl
;
1236 int name_len
= strlen (name
);
1239 /* If this is the first call, initialize the statically allocated specs */
1242 struct spec_list
*next
= (struct spec_list
*)0;
1243 for (i
= (sizeof (static_specs
) / sizeof (static_specs
[0])) - 1;
1246 sl
= &static_specs
[i
];
1253 /* See if the spec already exists */
1254 for (sl
= specs
; sl
; sl
= sl
->next
)
1255 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1260 /* Not found - make it */
1261 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1262 sl
->name
= save_string (name
, strlen (name
));
1263 sl
->name_len
= name_len
;
1264 sl
->ptr_spec
= &sl
->ptr
;
1266 *(sl
->ptr_spec
) = "";
1271 old_spec
= *(sl
->ptr_spec
);
1272 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1273 ? concat (old_spec
, spec
+ 1, NULL_PTR
)
1274 : save_string (spec
, strlen (spec
)));
1278 fprintf (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1281 /* Free the old spec */
1282 if (old_spec
&& sl
->alloc_p
)
1288 /* Accumulate a command (program name and args), and run it. */
1290 /* Vector of pointers to arguments in the current line of specifications. */
1292 static char **argbuf
;
1294 /* Number of elements allocated in argbuf. */
1296 static int argbuf_length
;
1298 /* Number of elements in argbuf currently in use (containing args). */
1300 static int argbuf_index
;
1302 /* We want this on by default all the time now. */
1303 #define MKTEMP_EACH_FILE
1305 #ifdef MKTEMP_EACH_FILE
1307 extern char *make_temp_file
PROTO((char *));
1309 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1312 static struct temp_name
{
1313 char *suffix
; /* suffix associated with the code. */
1314 int length
; /* strlen (suffix). */
1315 int unique
; /* Indicates whether %g or %u/%U was used. */
1316 char *filename
; /* associated filename. */
1317 int filename_length
; /* strlen (filename). */
1318 struct temp_name
*next
;
1321 extern char *choose_temp_base
PROTO((void));
1325 /* Number of commands executed so far. */
1327 static int execution_count
;
1329 /* Number of commands that exited with a signal. */
1331 static int signal_count
;
1333 /* Name with which this program was invoked. */
1335 static char *programname
;
1337 /* Structures to keep track of prefixes to try when looking for files. */
1341 char *prefix
; /* String to prepend to the path. */
1342 struct prefix_list
*next
; /* Next in linked list. */
1343 int require_machine_suffix
; /* Don't use without machine_suffix. */
1344 /* 2 means try both machine_suffix and just_machine_suffix. */
1345 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1350 struct prefix_list
*plist
; /* List of prefixes to try */
1351 int max_len
; /* Max length of a prefix in PLIST */
1352 char *name
; /* Name of this list (used in config stuff) */
1355 /* List of prefixes to try when looking for executables. */
1357 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1359 /* List of prefixes to try when looking for startup (crt0) files. */
1361 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1363 /* List of prefixes to try when looking for include files. */
1365 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1367 /* Suffix to attach to directories searched for commands.
1368 This looks like `MACHINE/VERSION/'. */
1370 static char *machine_suffix
= 0;
1372 /* Suffix to attach to directories searched for commands.
1373 This is just `MACHINE/'. */
1375 static char *just_machine_suffix
= 0;
1377 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1379 static char *gcc_exec_prefix
;
1381 /* Default prefixes to attach to command names. */
1383 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1384 #undef MD_EXEC_PREFIX
1385 #undef MD_STARTFILE_PREFIX
1386 #undef MD_STARTFILE_PREFIX_1
1389 #ifndef STANDARD_EXEC_PREFIX
1390 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1391 #endif /* !defined STANDARD_EXEC_PREFIX */
1393 static char *standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1394 static char *standard_exec_prefix_1
= "/usr/lib/gcc/";
1395 #ifdef MD_EXEC_PREFIX
1396 static char *md_exec_prefix
= MD_EXEC_PREFIX
;
1399 #ifndef STANDARD_STARTFILE_PREFIX
1400 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1401 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1403 #ifdef MD_STARTFILE_PREFIX
1404 static char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1406 #ifdef MD_STARTFILE_PREFIX_1
1407 static char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1409 static char *standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1410 static char *standard_startfile_prefix_1
= "/lib/";
1411 static char *standard_startfile_prefix_2
= "/usr/lib/";
1413 #ifndef TOOLDIR_BASE_PREFIX
1414 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1416 static char *tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1417 static char *tooldir_prefix
;
1419 /* Subdirectory to use for locating libraries. Set by
1420 set_multilib_dir based on the compilation options. */
1422 static char *multilib_dir
;
1424 /* Clear out the vector of arguments (after a command is executed). */
1432 /* Add one argument to the vector at the end.
1433 This is done when a space is seen or at the end of the line.
1434 If DELETE_ALWAYS is nonzero, the arg is a filename
1435 and the file should be deleted eventually.
1436 If DELETE_FAILURE is nonzero, the arg is a filename
1437 and the file should be deleted if this compilation fails. */
1440 store_arg (arg
, delete_always
, delete_failure
)
1442 int delete_always
, delete_failure
;
1444 if (argbuf_index
+ 1 == argbuf_length
)
1446 = (char **) xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (char *));
1448 argbuf
[argbuf_index
++] = arg
;
1449 argbuf
[argbuf_index
] = 0;
1451 if (delete_always
|| delete_failure
)
1452 record_temp_file (arg
, delete_always
, delete_failure
);
1455 /* Read compilation specs from a file named FILENAME,
1456 replacing the default ones.
1458 A suffix which starts with `*' is a definition for
1459 one of the machine-specific sub-specs. The "suffix" should be
1460 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1461 The corresponding spec is stored in asm_spec, etc.,
1462 rather than in the `compilers' vector.
1464 Anything invalid in the file is a fatal error. */
1467 read_specs (filename
, main_p
)
1473 struct stat statbuf
;
1478 fprintf (stderr
, "Reading specs from %s\n", filename
);
1480 /* Open and stat the file. */
1481 desc
= open (filename
, O_RDONLY
, 0);
1483 pfatal_with_name (filename
);
1484 if (stat (filename
, &statbuf
) < 0)
1485 pfatal_with_name (filename
);
1487 /* Read contents of file into BUFFER. */
1488 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1489 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1491 pfatal_with_name (filename
);
1492 buffer
[readlen
] = 0;
1495 /* Scan BUFFER for specs, putting them in the vector. */
1501 char *in
, *out
, *p1
, *p2
, *p3
;
1503 /* Advance P in BUFFER to the next nonblank nocomment line. */
1504 p
= skip_whitespace (p
);
1508 /* Is this a special command that starts with '%'? */
1509 /* Don't allow this for the main specs file, since it would
1510 encourage people to overwrite it. */
1511 if (*p
== '%' && !main_p
)
1514 while (*p
&& *p
!= '\n')
1517 p
++; /* Skip '\n' */
1519 if (!strncmp (p1
, "%include", sizeof ("%include")-1)
1520 && (p1
[sizeof "%include" - 1] == ' '
1521 || p1
[sizeof "%include" - 1] == '\t'))
1525 p1
+= sizeof ("%include");
1526 while (*p1
== ' ' || *p1
== '\t')
1529 if (*p1
++ != '<' || p
[-2] != '>')
1530 fatal ("specs %%include syntax malformed after %d characters",
1534 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1535 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1538 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1539 && (p1
[sizeof "%include_noerr" - 1] == ' '
1540 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1544 p1
+= sizeof "%include_noerr";
1545 while (*p1
== ' ' || *p1
== '\t') p1
++;
1547 if (*p1
++ != '<' || p
[-2] != '>')
1548 fatal ("specs %%include syntax malformed after %d characters",
1552 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1554 read_specs (new_filename
, FALSE
);
1555 else if (verbose_flag
)
1556 fprintf (stderr
, "Could not find specs file %s\n", p1
);
1559 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1560 && (p1
[sizeof "%rename" - 1] == ' '
1561 || p1
[sizeof "%rename" - 1] == '\t'))
1564 struct spec_list
*sl
;
1566 /* Get original name */
1567 p1
+= sizeof "%rename";
1568 while (*p1
== ' ' || *p1
== '\t')
1571 if (! ISALPHA ((unsigned char)*p1
))
1572 fatal ("specs %%rename syntax malformed after %d characters",
1576 while (*p2
&& !ISSPACE ((unsigned char)*p2
))
1579 if (*p2
!= ' ' && *p2
!= '\t')
1580 fatal ("specs %%rename syntax malformed after %d characters",
1585 while (*p2
== ' ' || *p2
== '\t')
1588 if (! ISALPHA ((unsigned char)*p2
))
1589 fatal ("specs %%rename syntax malformed after %d characters",
1592 /* Get new spec name */
1594 while (*p3
&& !ISSPACE ((unsigned char)*p3
))
1598 fatal ("specs %%rename syntax malformed after %d characters",
1602 for (sl
= specs
; sl
; sl
= sl
->next
)
1603 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1607 fatal ("specs %s spec was not found to be renamed", p1
);
1609 if (strcmp (p1
, p2
) == 0)
1614 fprintf (stderr
, "rename spec %s to %s\n", p1
, p2
);
1616 fprintf (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
1620 set_spec (p2
, *(sl
->ptr_spec
));
1622 free (*(sl
->ptr_spec
));
1624 *(sl
->ptr_spec
) = "";
1629 fatal ("specs unknown %% command after %d characters",
1633 /* Find the colon that should end the suffix. */
1635 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1638 /* The colon shouldn't be missing. */
1640 fatal ("specs file malformed after %d characters", p1
- buffer
);
1642 /* Skip back over trailing whitespace. */
1644 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1647 /* Copy the suffix to a string. */
1648 suffix
= save_string (p
, p2
- p
);
1649 /* Find the next line. */
1650 p
= skip_whitespace (p1
+ 1);
1652 fatal ("specs file malformed after %d characters", p
- buffer
);
1655 /* Find next blank line or end of string. */
1656 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1659 /* Specs end at the blank line and do not include the newline. */
1660 spec
= save_string (p
, p1
- p
);
1663 /* Delete backslash-newline sequences from the spec. */
1668 if (in
[0] == '\\' && in
[1] == '\n')
1670 else if (in
[0] == '#')
1671 while (*in
&& *in
!= '\n')
1679 if (suffix
[0] == '*')
1681 if (! strcmp (suffix
, "*link_command"))
1682 link_command_spec
= spec
;
1684 set_spec (suffix
+ 1, spec
);
1688 /* Add this pair to the vector. */
1690 = ((struct compiler
*)
1691 xrealloc (compilers
,
1692 (n_compilers
+ 2) * sizeof (struct compiler
)));
1694 compilers
[n_compilers
].suffix
= suffix
;
1695 bzero ((char *) compilers
[n_compilers
].spec
,
1696 sizeof compilers
[n_compilers
].spec
);
1697 compilers
[n_compilers
].spec
[0] = spec
;
1699 bzero ((char *) &compilers
[n_compilers
],
1700 sizeof compilers
[n_compilers
]);
1704 link_command_spec
= spec
;
1707 if (link_command_spec
== 0)
1708 fatal ("spec file has no spec for linking");
1711 /* Record the names of temporary files we tell compilers to write,
1712 and delete them at the end of the run. */
1714 /* This is the common prefix we use to make temp file names.
1715 It is chosen once for each run of this program.
1716 It is substituted into a spec by %g.
1717 Thus, all temp file names contain this prefix.
1718 In practice, all temp file names start with this prefix.
1720 This prefix comes from the envvar TMPDIR if it is defined;
1721 otherwise, from the P_tmpdir macro if that is defined;
1722 otherwise, in /usr/tmp or /tmp;
1723 or finally the current directory if all else fails. */
1725 static char *temp_filename
;
1727 /* Length of the prefix. */
1729 static int temp_filename_length
;
1731 /* Define the list of temporary files to delete. */
1736 struct temp_file
*next
;
1739 /* Queue of files to delete on success or failure of compilation. */
1740 static struct temp_file
*always_delete_queue
;
1741 /* Queue of files to delete on failure of compilation. */
1742 static struct temp_file
*failure_delete_queue
;
1744 /* Record FILENAME as a file to be deleted automatically.
1745 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1746 otherwise delete it in any case.
1747 FAIL_DELETE nonzero means delete it if a compilation step fails;
1748 otherwise delete it in any case. */
1751 record_temp_file (filename
, always_delete
, fail_delete
)
1756 register char *name
;
1757 name
= xmalloc (strlen (filename
) + 1);
1758 strcpy (name
, filename
);
1762 register struct temp_file
*temp
;
1763 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1764 if (! strcmp (name
, temp
->name
))
1767 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1768 temp
->next
= always_delete_queue
;
1770 always_delete_queue
= temp
;
1777 register struct temp_file
*temp
;
1778 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1779 if (! strcmp (name
, temp
->name
))
1782 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1783 temp
->next
= failure_delete_queue
;
1785 failure_delete_queue
= temp
;
1791 /* Delete all the temporary files whose names we previously recorded. */
1794 delete_if_ordinary (name
)
1801 printf ("Delete %s? (y or n) ", name
);
1805 while ((c
= getchar ()) != '\n' && c
!= EOF
)
1808 if (i
== 'y' || i
== 'Y')
1810 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
1811 if (unlink (name
) < 0)
1813 perror_with_name (name
);
1817 delete_temp_files ()
1819 register struct temp_file
*temp
;
1821 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1822 delete_if_ordinary (temp
->name
);
1823 always_delete_queue
= 0;
1826 /* Delete all the files to be deleted on error. */
1829 delete_failure_queue ()
1831 register struct temp_file
*temp
;
1833 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1834 delete_if_ordinary (temp
->name
);
1838 clear_failure_queue ()
1840 failure_delete_queue
= 0;
1843 /* Routine to add variables to the environment. We do this to pass
1844 the pathname of the gcc driver, and the directories search to the
1845 collect2 program, which is being run as ld. This way, we can be
1846 sure of executing the right compiler when collect2 wants to build
1847 constructors and destructors. Since the environment variables we
1848 use come from an obstack, we don't have to worry about allocating
1857 #ifndef VMS /* nor about VMS */
1859 extern char **environ
;
1860 char **old_environ
= environ
;
1864 int str_len
= strlen (str
);
1868 while ((ch
= *p
++) != '\0' && ch
!= '=')
1874 /* Search for replacing an existing environment variable, and
1875 count the number of total environment variables. */
1876 for (envp
= old_environ
; *envp
; envp
++)
1879 if (!strncmp (str
, *envp
, name_len
))
1886 /* Add a new environment variable */
1887 environ
= (char **) xmalloc (sizeof (char *) * (num_envs
+2));
1889 memcpy ((char *) (environ
+ 1), (char *) old_environ
,
1890 sizeof (char *) * (num_envs
+1));
1895 #endif /* HAVE_PUTENV */
1898 /* Build a list of search directories from PATHS.
1899 PREFIX is a string to prepend to the list.
1900 If CHECK_DIR_P is non-zero we ensure the directory exists.
1901 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1902 It is also used by the --print-search-dirs flag. */
1905 build_search_list (paths
, prefix
, check_dir_p
)
1906 struct path_prefix
*paths
;
1910 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
1912 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
1913 int first_time
= TRUE
;
1914 struct prefix_list
*pprefix
;
1916 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
1918 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
1920 int len
= strlen (pprefix
->prefix
);
1924 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
1927 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1930 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1931 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
1934 if (just_machine_suffix
1935 && pprefix
->require_machine_suffix
== 2
1937 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
1940 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1943 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1944 obstack_grow (&collect_obstack
, just_machine_suffix
,
1948 if (! pprefix
->require_machine_suffix
)
1951 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1954 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1958 obstack_1grow (&collect_obstack
, '\0');
1959 return obstack_finish (&collect_obstack
);
1962 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1966 putenv_from_prefixes (paths
, env_var
)
1967 struct path_prefix
*paths
;
1970 putenv (build_search_list (paths
, env_var
, 1));
1973 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1974 access to check permissions.
1975 Return 0 if not found, otherwise return its name, allocated with malloc. */
1978 find_a_file (pprefix
, name
, mode
)
1979 struct path_prefix
*pprefix
;
1984 char *file_suffix
= ((mode
& X_OK
) != 0 ? EXECUTABLE_SUFFIX
: "");
1985 struct prefix_list
*pl
;
1986 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
1988 #ifdef DEFAULT_ASSEMBLER
1989 if (! strcmp(name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0) {
1990 name
= DEFAULT_ASSEMBLER
;
1991 len
= strlen(name
)+1;
1992 temp
= xmalloc (len
);
1993 strcpy (temp
, name
);
1998 #ifdef DEFAULT_LINKER
1999 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0) {
2000 name
= DEFAULT_LINKER
;
2001 len
= strlen(name
)+1;
2002 temp
= xmalloc (len
);
2003 strcpy (temp
, name
);
2009 len
+= strlen (machine_suffix
);
2011 temp
= xmalloc (len
);
2013 /* Determine the filename to execute (special case for absolute paths). */
2015 if (*name
== '/' || *name
== DIR_SEPARATOR
2016 /* Check for disk name on MS-DOS-based systems. */
2017 || (DIR_SEPARATOR
== '\\' && name
[1] == ':'
2018 && (name
[2] == DIR_SEPARATOR
|| name
[2] == '/')))
2020 if (access (name
, mode
) == 0)
2022 strcpy (temp
, name
);
2027 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2031 /* Some systems have a suffix for executable files.
2032 So try appending that first. */
2033 if (file_suffix
[0] != 0)
2035 strcpy (temp
, pl
->prefix
);
2036 strcat (temp
, machine_suffix
);
2037 strcat (temp
, name
);
2038 strcat (temp
, file_suffix
);
2039 if (access (temp
, mode
) == 0)
2041 if (pl
->used_flag_ptr
!= 0)
2042 *pl
->used_flag_ptr
= 1;
2047 /* Now try just the name. */
2048 strcpy (temp
, pl
->prefix
);
2049 strcat (temp
, machine_suffix
);
2050 strcat (temp
, name
);
2051 if (access (temp
, mode
) == 0)
2053 if (pl
->used_flag_ptr
!= 0)
2054 *pl
->used_flag_ptr
= 1;
2059 /* Certain prefixes are tried with just the machine type,
2060 not the version. This is used for finding as, ld, etc. */
2061 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2063 /* Some systems have a suffix for executable files.
2064 So try appending that first. */
2065 if (file_suffix
[0] != 0)
2067 strcpy (temp
, pl
->prefix
);
2068 strcat (temp
, just_machine_suffix
);
2069 strcat (temp
, name
);
2070 strcat (temp
, file_suffix
);
2071 if (access (temp
, mode
) == 0)
2073 if (pl
->used_flag_ptr
!= 0)
2074 *pl
->used_flag_ptr
= 1;
2079 strcpy (temp
, pl
->prefix
);
2080 strcat (temp
, just_machine_suffix
);
2081 strcat (temp
, name
);
2082 if (access (temp
, mode
) == 0)
2084 if (pl
->used_flag_ptr
!= 0)
2085 *pl
->used_flag_ptr
= 1;
2090 /* Certain prefixes can't be used without the machine suffix
2091 when the machine or version is explicitly specified. */
2092 if (! pl
->require_machine_suffix
)
2094 /* Some systems have a suffix for executable files.
2095 So try appending that first. */
2096 if (file_suffix
[0] != 0)
2098 strcpy (temp
, pl
->prefix
);
2099 strcat (temp
, name
);
2100 strcat (temp
, file_suffix
);
2101 if (access (temp
, mode
) == 0)
2103 if (pl
->used_flag_ptr
!= 0)
2104 *pl
->used_flag_ptr
= 1;
2109 strcpy (temp
, pl
->prefix
);
2110 strcat (temp
, name
);
2111 if (access (temp
, mode
) == 0)
2113 if (pl
->used_flag_ptr
!= 0)
2114 *pl
->used_flag_ptr
= 1;
2124 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
2125 at the start of the list, otherwise it goes at the end.
2127 If WARN is nonzero, we will warn if no file is found
2128 through this prefix. WARN should point to an int
2129 which will be set to 1 if this entry is used.
2131 COMPONENT is the value to be passed to update_path.
2133 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2134 the complete value of machine_suffix.
2135 2 means try both machine_suffix and just_machine_suffix. */
2138 add_prefix (pprefix
, prefix
, component
, first
, require_machine_suffix
, warn
)
2139 struct path_prefix
*pprefix
;
2143 int require_machine_suffix
;
2146 struct prefix_list
*pl
, **prev
;
2149 if (! first
&& pprefix
->plist
)
2151 for (pl
= pprefix
->plist
; pl
->next
; pl
= pl
->next
)
2156 prev
= &pprefix
->plist
;
2158 /* Keep track of the longest prefix */
2160 prefix
= update_path (prefix
, component
);
2161 len
= strlen (prefix
);
2162 if (len
> pprefix
->max_len
)
2163 pprefix
->max_len
= len
;
2165 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
2166 pl
->prefix
= save_string (prefix
, len
);
2167 pl
->require_machine_suffix
= require_machine_suffix
;
2168 pl
->used_flag_ptr
= warn
;
2175 pl
->next
= (struct prefix_list
*) 0;
2179 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
2182 unused_prefix_warnings (pprefix
)
2183 struct path_prefix
*pprefix
;
2185 struct prefix_list
*pl
= pprefix
->plist
;
2189 if (pl
->used_flag_ptr
!= 0 && !*pl
->used_flag_ptr
)
2191 if (pl
->require_machine_suffix
&& machine_suffix
)
2192 error ("file path prefix `%s%s' never used", pl
->prefix
,
2195 error ("file path prefix `%s' never used", pl
->prefix
);
2197 /* Prevent duplicate warnings. */
2198 *pl
->used_flag_ptr
= 1;
2206 /* Execute the command specified by the arguments on the current line of spec.
2207 When using pipes, this includes several piped-together commands
2208 with `|' between them.
2210 Return 0 if successful, -1 if failed. */
2216 int n_commands
; /* # of command. */
2220 char *prog
; /* program name. */
2221 char **argv
; /* vector of args. */
2222 int pid
; /* pid of process for this command. */
2225 struct command
*commands
; /* each command buffer with above info. */
2227 /* Count # of piped commands. */
2228 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2229 if (strcmp (argbuf
[i
], "|") == 0)
2232 /* Get storage for each command. */
2234 = (struct command
*) alloca (n_commands
* sizeof (struct command
));
2236 /* Split argbuf into its separate piped processes,
2237 and record info about each one.
2238 Also search for the programs that are to be run. */
2240 commands
[0].prog
= argbuf
[0]; /* first command. */
2241 commands
[0].argv
= &argbuf
[0];
2242 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2245 commands
[0].argv
[0] = string
;
2247 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2248 if (strcmp (argbuf
[i
], "|") == 0)
2249 { /* each command. */
2250 #if defined (__MSDOS__) || (defined (_WIN32) && defined (__CYGWIN32_)) || defined (OS2) || defined (VMS)
2251 fatal ("-pipe not supported");
2253 argbuf
[i
] = 0; /* termination of command args. */
2254 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2255 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2256 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2258 commands
[n_commands
].argv
[0] = string
;
2262 argbuf
[argbuf_index
] = 0;
2264 /* If -v, print what we are about to do, and maybe query. */
2268 /* For help listings, put a blank line between sub-processes. */
2269 if (print_help_list
)
2270 fputc ('\n', stderr
);
2272 /* Print each piped command as a separate line. */
2273 for (i
= 0; i
< n_commands
; i
++)
2277 for (j
= commands
[i
].argv
; *j
; j
++)
2278 fprintf (stderr
, " %s", *j
);
2280 /* Print a pipe symbol after all but the last command. */
2281 if (i
+ 1 != n_commands
)
2282 fprintf (stderr
, " |");
2283 fprintf (stderr
, "\n");
2287 fprintf (stderr
, "\nGo ahead? (y or n) ");
2291 while (getchar () != '\n')
2294 if (i
!= 'y' && i
!= 'Y')
2299 /* Run each piped subprocess. */
2301 for (i
= 0; i
< n_commands
; i
++)
2303 char *errmsg_fmt
, *errmsg_arg
;
2304 char *string
= commands
[i
].argv
[0];
2306 commands
[i
].pid
= pexecute (string
, commands
[i
].argv
,
2307 programname
, temp_filename
,
2308 &errmsg_fmt
, &errmsg_arg
,
2309 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2310 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2311 | (string
== commands
[i
].prog
2312 ? PEXECUTE_SEARCH
: 0)
2313 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2315 if (commands
[i
].pid
== -1)
2316 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2318 if (string
!= commands
[i
].prog
)
2324 /* Wait for all the subprocesses to finish.
2325 We don't care what order they finish in;
2326 we know that N_COMMANDS waits will get them all.
2327 Ignore subprocesses that we don't know about,
2328 since they can be spawned by the process that exec'ed us. */
2333 for (i
= 0; i
< n_commands
; )
2339 pid
= pwait (commands
[i
].pid
, &status
, 0);
2343 for (j
= 0; j
< n_commands
; j
++)
2344 if (commands
[j
].pid
== pid
)
2349 if (WIFSIGNALED (status
))
2351 fatal ("Internal compiler error: program %s got fatal signal %d",
2352 commands
[j
].prog
, WTERMSIG (status
));
2356 else if (WIFEXITED (status
)
2357 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2367 /* Find all the switches given to us
2368 and make a vector describing them.
2369 The elements of the vector are strings, one per switch given.
2370 If a switch uses following arguments, then the `part1' field
2371 is the switch itself and the `args' field
2372 is a null-terminated vector containing the following arguments.
2373 The `live_cond' field is 1 if the switch is true in a conditional spec,
2374 -1 if false (overridden by a later switch), and is initialized to zero.
2375 The `valid' field is nonzero if any spec has looked at this switch;
2376 if it remains zero at the end of the run, it must be meaningless. */
2386 static struct switchstr
*switches
;
2388 static int n_switches
;
2396 /* Also a vector of input files specified. */
2398 static struct infile
*infiles
;
2400 static int n_infiles
;
2402 /* This counts the number of libraries added by LANG_SPECIFIC_DRIVER, so that
2403 we can tell if there were any user supplied any files or libraries. */
2405 static int added_libraries
;
2407 /* And a vector of corresponding output files is made up later. */
2409 static char **outfiles
;
2411 /* Used to track if none of the -B paths are used. */
2414 /* Used to track if standard path isn't used and -b or -V is specified. */
2415 static int warn_std
;
2417 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2418 static int *warn_std_ptr
= 0;
2421 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2423 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2424 is true if we should look for an executable suffix as well. */
2427 convert_filename (name
, do_exe
)
2432 int len
= strlen (name
);
2434 #ifdef HAVE_OBJECT_SUFFIX
2435 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2437 && name
[len
- 2] == '.'
2438 && name
[len
- 1] == 'o')
2440 obstack_grow (&obstack
, name
, len
- 2);
2441 obstack_grow0 (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
2442 name
= obstack_finish (&obstack
);
2446 #ifdef HAVE_EXECUTABLE_SUFFIX
2447 /* If there is no filetype, make it the executable suffix (which includes
2448 the "."). But don't get confused if we have just "-o". */
2449 if (! do_exe
|| EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2452 for (i
= len
- 1; i
>= 0; i
--)
2453 if (name
[i
] == '/' || name
[i
] == DIR_SEPARATOR
)
2456 for (i
++; i
< len
; i
++)
2460 obstack_grow (&obstack
, name
, len
);
2461 obstack_grow0 (&obstack
, EXECUTABLE_SUFFIX
, strlen (EXECUTABLE_SUFFIX
));
2462 name
= obstack_finish (&obstack
);
2469 /* Display the command line switches accepted by gcc. */
2473 printf ("Usage: %s [options] file...\n", programname
);
2474 printf ("Options:\n");
2476 printf (" --help Display this information\n");
2478 printf (" (Use '-v --help' to display command line options of sub-processes)\n");
2479 printf (" -dumpspecs Display all of the built in spec strings\n");
2480 printf (" -dumpversion Display the version of the compiler\n");
2481 printf (" -dumpmachine Display the compiler's target processor\n");
2482 printf (" -print-search-dirs Display the directories in the compiler's search path\n");
2483 printf (" -print-libgcc-file-name Display the name of the compiler's companion library\n");
2484 printf (" -print-file-name=<lib> Display the full path to library <lib>\n");
2485 printf (" -print-prog-name=<prog> Display the full path to compiler component <prog>\n");
2486 printf (" -print-multi-directory Display the root directory for versions of libgcc\n");
2487 printf (" -print-multi-lib Display the mapping between command line options and\n");
2488 printf (" multiple library search directories\n");
2489 printf (" -Wa,<options> Pass comma-separated <options> on to the assembler\n");
2490 printf (" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n");
2491 printf (" -Wl,<options> Pass comma-separated <options> on to the linker\n");
2492 printf (" -Xlinker <arg> Pass <arg> on to the linker\n");
2493 printf (" -save-temps Do not delete intermediate files\n");
2494 printf (" -pipe Use pipes rather than intermediate files\n");
2495 printf (" -specs=<file> Override builtin specs with the contents of <file>\n");
2496 printf (" -B <directory> Add <directory> to the compiler's search paths\n");
2497 printf (" -b <machine> Run gcc for target <machine>, if installed\n");
2498 printf (" -V <version> Run gcc version number <version>, if installed\n");
2499 printf (" -v Display the programs invoked by the compiler\n");
2500 printf (" -E Preprocess only; do not compile, assemble or link\n");
2501 printf (" -S Compile only; do not assemble or link\n");
2502 printf (" -c Compile and assemble, but do not link\n");
2503 printf (" -o <file> Place the output into <file>\n");
2504 printf (" -x <language> Specify the language of the following input files\n");
2505 printf (" Permissable languages include: c c++ assembler none\n");
2506 printf (" 'none' means revert to the default behaviour of\n");
2507 printf (" guessing the language based on the file's extension\n");
2509 printf ("\nOptions starting with -g, -f, -m, -O or -W are automatically passed on to\n");
2510 printf ("the various sub-processes invoked by %s. In order to pass other options\n",
2512 printf ("on to these processes the -W<letter> options must be used.\n");
2514 /* The rest of the options are displayed by invocations of the various
2519 add_preprocessor_option (option
, len
)
2523 n_preprocessor_options
++;
2525 if (! preprocessor_options
)
2526 preprocessor_options
2527 = (char **) xmalloc (n_preprocessor_options
* sizeof (char *));
2529 preprocessor_options
2530 = (char **) xrealloc (preprocessor_options
,
2531 n_preprocessor_options
* sizeof (char *));
2533 preprocessor_options
[n_preprocessor_options
- 1] = save_string (option
, len
);
2537 add_assembler_option (option
, len
)
2541 n_assembler_options
++;
2543 if (! assembler_options
)
2545 = (char **) xmalloc (n_assembler_options
* sizeof (char *));
2548 = (char **) xrealloc (assembler_options
,
2549 n_assembler_options
* sizeof (char *));
2551 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
2555 add_linker_option (option
, len
)
2561 if (! linker_options
)
2563 = (char **) xmalloc (n_linker_options
* sizeof (char *));
2566 = (char **) xrealloc (linker_options
,
2567 n_linker_options
* sizeof (char *));
2569 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
2572 /* Create the vector `switches' and its contents.
2573 Store its length in `n_switches'. */
2576 process_command (argc
, argv
)
2582 char *spec_lang
= 0;
2583 int last_language_n_infiles
;
2586 int lang_n_infiles
= 0;
2588 GET_ENV_PATH_LIST (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
2592 added_libraries
= 0;
2594 /* Figure compiler version from version string. */
2596 compiler_version
= save_string (version_string
, strlen (version_string
));
2597 for (temp
= compiler_version
; *temp
; ++temp
)
2606 /* Set up the default search paths. */
2608 if (gcc_exec_prefix
)
2610 int len
= strlen (gcc_exec_prefix
);
2611 if (len
> (int) sizeof ("/lib/gcc-lib/")-1
2612 && (gcc_exec_prefix
[len
-1] == '/'
2613 || gcc_exec_prefix
[len
-1] == DIR_SEPARATOR
))
2615 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc-lib/") + 1;
2616 if ((*temp
== '/' || *temp
== DIR_SEPARATOR
)
2617 && strncmp (temp
+1, "lib", 3) == 0
2618 && (temp
[4] == '/' || temp
[4] == DIR_SEPARATOR
)
2619 && strncmp (temp
+5, "gcc-lib", 7) == 0)
2620 len
-= sizeof ("/lib/gcc-lib/") - 1;
2623 set_std_prefix (gcc_exec_prefix
, len
);
2624 add_prefix (&exec_prefixes
, gcc_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
2625 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
2628 /* COMPILER_PATH and LIBRARY_PATH have values
2629 that are lists of directory names with colons. */
2631 GET_ENV_PATH_LIST (temp
, "COMPILER_PATH");
2634 char *startp
, *endp
;
2635 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2637 startp
= endp
= temp
;
2640 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2642 strncpy (nstore
, startp
, endp
-startp
);
2644 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2645 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2647 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2648 nstore
[endp
-startp
+1] = 0;
2651 nstore
[endp
-startp
] = 0;
2652 add_prefix (&exec_prefixes
, nstore
, 0, 0, 0, NULL_PTR
);
2653 add_prefix (&include_prefixes
,
2654 concat (nstore
, "include", NULL_PTR
),
2658 endp
= startp
= endp
+ 1;
2665 GET_ENV_PATH_LIST (temp
, "LIBRARY_PATH");
2666 if (temp
&& *cross_compile
== '0')
2668 char *startp
, *endp
;
2669 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2671 startp
= endp
= temp
;
2674 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2676 strncpy (nstore
, startp
, endp
-startp
);
2678 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2679 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2681 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2682 nstore
[endp
-startp
+1] = 0;
2685 nstore
[endp
-startp
] = 0;
2686 add_prefix (&startfile_prefixes
, nstore
, NULL_PTR
,
2690 endp
= startp
= endp
+ 1;
2697 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2698 GET_ENV_PATH_LIST (temp
, "LPATH");
2699 if (temp
&& *cross_compile
== '0')
2701 char *startp
, *endp
;
2702 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2704 startp
= endp
= temp
;
2707 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2709 strncpy (nstore
, startp
, endp
-startp
);
2711 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2712 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2714 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2715 nstore
[endp
-startp
+1] = 0;
2718 nstore
[endp
-startp
] = 0;
2719 add_prefix (&startfile_prefixes
, nstore
, NULL_PTR
,
2723 endp
= startp
= endp
+ 1;
2730 /* Convert new-style -- options to old-style. */
2731 translate_options (&argc
, &argv
);
2733 #ifdef LANG_SPECIFIC_DRIVER
2734 /* Do language-specific adjustment/addition of flags. */
2735 lang_specific_driver (fatal
, &argc
, &argv
, &added_libraries
);
2738 /* Scan argv twice. Here, the first time, just count how many switches
2739 there will be in their vector, and how many input files in theirs.
2740 Here we also parse the switches that cc itself uses (e.g. -v). */
2742 for (i
= 1; i
< argc
; i
++)
2744 if (! strcmp (argv
[i
], "-dumpspecs"))
2746 struct spec_list
*sl
;
2748 for (sl
= specs
; sl
; sl
= sl
->next
)
2749 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
2752 else if (! strcmp (argv
[i
], "-dumpversion"))
2754 printf ("%s\n", spec_version
);
2757 else if (! strcmp (argv
[i
], "-dumpmachine"))
2759 printf ("%s\n", spec_machine
);
2762 else if (strcmp (argv
[i
], "-fhelp") == 0)
2764 /* translate_options () has turned --help into -fhelp. */
2765 print_help_list
= 1;
2767 /* We will be passing a dummy file on to the sub-processes. */
2771 add_preprocessor_option ("--help", 6);
2772 add_assembler_option ("--help", 6);
2773 add_linker_option ("--help", 6);
2775 else if (! strcmp (argv
[i
], "-print-search-dirs"))
2776 print_search_dirs
= 1;
2777 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2778 print_file_name
= "libgcc.a";
2779 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2780 print_file_name
= argv
[i
] + 17;
2781 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2782 print_prog_name
= argv
[i
] + 17;
2783 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2784 print_multi_lib
= 1;
2785 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2786 print_multi_directory
= 1;
2787 else if (! strncmp (argv
[i
], "-Wa,", 4))
2790 /* Pass the rest of this option to the assembler. */
2792 /* Split the argument at commas. */
2794 for (j
= 4; argv
[i
][j
]; j
++)
2795 if (argv
[i
][j
] == ',')
2797 add_assembler_option (argv
[i
] + prev
, j
- prev
);
2801 /* Record the part after the last comma. */
2802 add_assembler_option (argv
[i
] + prev
, j
- prev
);
2804 else if (! strncmp (argv
[i
], "-Wp,", 4))
2807 /* Pass the rest of this option to the preprocessor. */
2809 /* Split the argument at commas. */
2811 for (j
= 4; argv
[i
][j
]; j
++)
2812 if (argv
[i
][j
] == ',')
2814 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
2818 /* Record the part after the last comma. */
2819 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
2821 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2822 /* The +e options to the C++ front-end. */
2824 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
2827 /* Split the argument at commas. */
2828 for (j
= 3; argv
[i
][j
]; j
++)
2829 n_infiles
+= (argv
[i
][j
] == ',');
2831 else if (strcmp (argv
[i
], "-Xlinker") == 0)
2834 fatal ("argument to `-Xlinker' is missing");
2839 else if (strncmp (argv
[i
], "-l", 2) == 0)
2841 else if (strcmp (argv
[i
], "-save-temps") == 0)
2843 save_temps_flag
= 1;
2846 else if (strcmp (argv
[i
], "-specs") == 0)
2848 struct user_specs
*user
= (struct user_specs
*)
2849 xmalloc (sizeof (struct user_specs
));
2851 fatal ("argument to `-specs' is missing");
2853 user
->next
= (struct user_specs
*)0;
2854 user
->filename
= argv
[i
];
2855 if (user_specs_tail
)
2856 user_specs_tail
->next
= user
;
2858 user_specs_head
= user
;
2859 user_specs_tail
= user
;
2861 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
2863 struct user_specs
*user
= (struct user_specs
*)
2864 xmalloc (sizeof (struct user_specs
));
2865 if (strlen (argv
[i
]) == 7)
2866 fatal ("argument to `-specs=' is missing");
2868 user
->next
= (struct user_specs
*)0;
2869 user
->filename
= argv
[i
]+7;
2870 if (user_specs_tail
)
2871 user_specs_tail
->next
= user
;
2873 user_specs_head
= user
;
2874 user_specs_tail
= user
;
2876 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
2878 register char *p
= &argv
[i
][1];
2879 register int c
= *p
;
2885 if (p
[1] == 0 && i
+ 1 == argc
)
2886 fatal ("argument to `-b' is missing");
2888 spec_machine
= argv
[++i
];
2890 spec_machine
= p
+ 1;
2892 warn_std_ptr
= &warn_std
;
2898 if (p
[1] == 0 && i
+ 1 == argc
)
2899 fatal ("argument to `-B' is missing");
2904 add_prefix (&exec_prefixes
, value
, NULL_PTR
, 1, 0, &warn_B
);
2905 add_prefix (&startfile_prefixes
, value
, NULL_PTR
,
2907 add_prefix (&include_prefixes
, concat (value
, "include",
2909 NULL_PTR
, 1, 0, NULL_PTR
);
2911 /* As a kludge, if the arg is "[foo/]stageN/", just add
2912 "[foo/]include" to the include prefix. */
2914 int len
= strlen (value
);
2917 && (value
[len
- 8] == '/'
2918 || value
[len
- 8] == DIR_SEPARATOR
)))
2919 && strncmp (value
+ len
- 7, "stage", 5) == 0
2920 && ISDIGIT (value
[len
- 2])
2921 && (value
[len
- 1] == '/'
2922 || value
[len
- 1] == DIR_SEPARATOR
))
2925 add_prefix (&include_prefixes
, "include", NULL_PTR
,
2929 char *string
= xmalloc (len
+ 1);
2930 strncpy (string
, value
, len
-7);
2931 strcpy (string
+len
-7, "include");
2932 add_prefix (&include_prefixes
, string
, NULL_PTR
,
2941 case 'v': /* Print our subcommands and print versions. */
2943 /* If they do anything other than exactly `-v', don't set
2944 verbose_flag; rather, continue on to give the error. */
2952 if (p
[1] == 0 && i
+ 1 == argc
)
2953 fatal ("argument to `-V' is missing");
2955 spec_version
= argv
[++i
];
2957 spec_version
= p
+ 1;
2958 compiler_version
= spec_version
;
2959 warn_std_ptr
= &warn_std
;
2961 /* Validate the version number. Use the same checks
2962 done when inserting it into a spec.
2964 The format of the version string is
2965 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
2967 char *v
= compiler_version
;
2969 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
2970 while (! ISDIGIT (*v
))
2973 if (v
> compiler_version
&& v
[-1] != '-')
2974 fatal ("invalid version number format");
2976 /* Set V after the first period. */
2977 while (ISDIGIT (*v
))
2981 fatal ("invalid version number format");
2984 while (ISDIGIT (*v
))
2987 if (*v
!= 0 && *v
!= ' ' && *v
!= '.' && *v
!= '-')
2988 fatal ("invalid version number format");
3004 #if defined(HAVE_EXECUTABLE_SUFFIX)
3009 /* Forward scan, just in case -S or -c is specified
3016 if (argv
[j
][0] == '-')
3018 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3024 else if (skip
= SWITCH_TAKES_ARG (argv
[j
][1]))
3025 j
+= skip
- (argv
[j
][2] != 0);
3026 else if (skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1))
3033 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
3035 argv
[i
+1] = convert_filename (argv
[i
+1], ! have_c
);
3037 argv
[i
] = convert_filename (argv
[i
], ! have_c
);
3045 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3046 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3047 else if (WORD_SWITCH_TAKES_ARG (p
))
3048 i
+= WORD_SWITCH_TAKES_ARG (p
);
3058 if (have_c
&& have_o
&& lang_n_infiles
> 1)
3059 fatal ("cannot specify -o with -c or -S and multiple compilations");
3061 /* Set up the search paths before we go looking for config files. */
3063 /* These come before the md prefixes so that we will find gcc's subcommands
3064 (such as cpp) rather than those of the host system. */
3065 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3066 as well as trying the machine and the version. */
3068 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3069 0, 2, warn_std_ptr
);
3070 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3071 0, 2, warn_std_ptr
);
3074 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3075 0, 1, warn_std_ptr
);
3076 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3077 0, 1, warn_std_ptr
);
3079 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3080 dir_separator_str
, NULL_PTR
);
3082 /* If tooldir is relative, base it on exec_prefixes. A relative
3083 tooldir lets us move the installed tree as a unit.
3085 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3086 directories, so that we can search both the user specified directory
3087 and the standard place. */
3089 if (*tooldir_prefix
!= '/' && *tooldir_prefix
!= DIR_SEPARATOR
)
3091 if (gcc_exec_prefix
)
3093 char *gcc_exec_tooldir_prefix
3094 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3095 spec_version
, dir_separator_str
, tooldir_prefix
, NULL_PTR
);
3097 add_prefix (&exec_prefixes
,
3098 concat (gcc_exec_tooldir_prefix
, "bin",
3099 dir_separator_str
, NULL_PTR
),
3100 NULL_PTR
, 0, 0, NULL_PTR
);
3101 add_prefix (&startfile_prefixes
,
3102 concat (gcc_exec_tooldir_prefix
, "lib",
3103 dir_separator_str
, NULL_PTR
),
3104 NULL_PTR
, 0, 0, NULL_PTR
);
3107 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3108 dir_separator_str
, spec_version
,
3109 dir_separator_str
, tooldir_prefix
, NULL_PTR
);
3112 add_prefix (&exec_prefixes
,
3113 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL_PTR
),
3114 "BINUTILS", 0, 0, NULL_PTR
);
3115 add_prefix (&startfile_prefixes
,
3116 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL_PTR
),
3117 "BINUTILS", 0, 0, NULL_PTR
);
3119 /* More prefixes are enabled in main, after we read the specs file
3120 and determine whether this is cross-compilation or not. */
3123 /* Then create the space for the vectors and scan again. */
3125 switches
= ((struct switchstr
*)
3126 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
3127 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3130 last_language_n_infiles
= -1;
3132 /* This, time, copy the text of each switch and store a pointer
3133 to the copy in the vector of switches.
3134 Store all the infiles in their vector. */
3136 for (i
= 1; i
< argc
; i
++)
3138 /* Just skip the switches that were handled by the preceding loop. */
3139 if (! strncmp (argv
[i
], "-Wa,", 4))
3141 else if (! strncmp (argv
[i
], "-Wp,", 4))
3143 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3145 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3147 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3149 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3151 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3153 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3155 else if (strcmp (argv
[i
], "-fhelp") == 0)
3159 /* Create a dummy input file, so that we can pass --help on to
3160 the various sub-processes. */
3161 infiles
[n_infiles
].language
= "c";
3162 infiles
[n_infiles
++].name
= "help-dummy";
3164 /* Preserve the --help switch so that it can be caught by the
3166 switches
[n_switches
].part1
= "--help";
3167 switches
[n_switches
].args
= 0;
3168 switches
[n_switches
].live_cond
= 0;
3169 switches
[n_switches
].valid
= 0;
3174 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3176 /* Compensate for the +e options to the C++ front-end;
3177 they're there simply for cfront call-compatibility. We do
3178 some magic in default_compilers to pass them down properly.
3179 Note we deliberately start at the `+' here, to avoid passing
3180 -e0 or -e1 down into the linker. */
3181 switches
[n_switches
].part1
= &argv
[i
][0];
3182 switches
[n_switches
].args
= 0;
3183 switches
[n_switches
].live_cond
= 0;
3184 switches
[n_switches
].valid
= 0;
3187 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3190 /* Split the argument at commas. */
3192 for (j
= 4; argv
[i
][j
]; j
++)
3193 if (argv
[i
][j
] == ',')
3195 infiles
[n_infiles
].language
= "*";
3196 infiles
[n_infiles
++].name
3197 = save_string (argv
[i
] + prev
, j
- prev
);
3200 /* Record the part after the last comma. */
3201 infiles
[n_infiles
].language
= "*";
3202 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3204 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3206 infiles
[n_infiles
].language
= "*";
3207 infiles
[n_infiles
++].name
= argv
[++i
];
3209 else if (strncmp (argv
[i
], "-l", 2) == 0)
3211 infiles
[n_infiles
].language
= "*";
3212 infiles
[n_infiles
++].name
= argv
[i
];
3214 else if (strcmp (argv
[i
], "-specs") == 0)
3216 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3218 /* -save-temps overrides -pipe, so that temp files are produced */
3219 else if (save_temps_flag
&& strcmp (argv
[i
], "-pipe") == 0)
3220 error ("Warning: -pipe ignored since -save-temps specified");
3221 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3223 register char *p
= &argv
[i
][1];
3224 register int c
= *p
;
3228 if (p
[1] == 0 && i
+ 1 == argc
)
3229 fatal ("argument to `-x' is missing");
3231 spec_lang
= argv
[++i
];
3234 if (! strcmp (spec_lang
, "none"))
3235 /* Suppress the warning if -xnone comes after the last input
3236 file, because alternate command interfaces like g++ might
3237 find it useful to place -xnone after each input file. */
3240 last_language_n_infiles
= n_infiles
;
3243 switches
[n_switches
].part1
= p
;
3244 /* Deal with option arguments in separate argv elements. */
3245 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3246 || WORD_SWITCH_TAKES_ARG (p
))
3249 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
3253 /* Count only the option arguments in separate argv elements. */
3254 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3256 if (i
+ n_args
>= argc
)
3257 fatal ("argument to `-%s' is missing", p
);
3258 switches
[n_switches
].args
3259 = (char **) xmalloc ((n_args
+ 1) * sizeof (char *));
3261 switches
[n_switches
].args
[j
++] = argv
[++i
];
3262 /* Null-terminate the vector. */
3263 switches
[n_switches
].args
[j
] = 0;
3265 else if (index (switches_need_spaces
, c
))
3267 /* On some systems, ld cannot handle some options without
3268 a space. So split the option from its argument. */
3269 char *part1
= (char *) xmalloc (2);
3273 switches
[n_switches
].part1
= part1
;
3274 switches
[n_switches
].args
= (char **) xmalloc (2 * sizeof (char *));
3275 switches
[n_switches
].args
[0] = xmalloc (strlen (p
));
3276 strcpy (switches
[n_switches
].args
[0], &p
[1]);
3277 switches
[n_switches
].args
[1] = 0;
3280 switches
[n_switches
].args
= 0;
3282 switches
[n_switches
].live_cond
= 0;
3283 switches
[n_switches
].valid
= 0;
3284 /* This is always valid, since gcc.c itself understands it. */
3285 if (!strcmp (p
, "save-temps"))
3286 switches
[n_switches
].valid
= 1;
3289 char ch
= switches
[n_switches
].part1
[0];
3290 if (ch
== 'V' || ch
== 'b' || ch
== 'B')
3291 switches
[n_switches
].valid
= 1;
3297 #ifdef HAVE_OBJECT_SUFFIX
3298 argv
[i
] = convert_filename (argv
[i
], 0);
3301 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], R_OK
) < 0)
3303 perror_with_name (argv
[i
]);
3308 infiles
[n_infiles
].language
= spec_lang
;
3309 infiles
[n_infiles
++].name
= argv
[i
];
3314 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
3315 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
3317 switches
[n_switches
].part1
= 0;
3318 infiles
[n_infiles
].name
= 0;
3321 /* Process a spec string, accumulating and running commands. */
3323 /* These variables describe the input file name.
3324 input_file_number is the index on outfiles of this file,
3325 so that the output file name can be stored for later use by %o.
3326 input_basename is the start of the part of the input file
3327 sans all directory names, and basename_length is the number
3328 of characters starting there excluding the suffix .c or whatever. */
3330 char *input_filename
;
3331 static int input_file_number
;
3332 size_t input_filename_length
;
3333 static int basename_length
;
3334 static char *input_basename
;
3335 static char *input_suffix
;
3337 /* These are variables used within do_spec and do_spec_1. */
3339 /* Nonzero if an arg has been started and not yet terminated
3340 (with space, tab or newline). */
3341 static int arg_going
;
3343 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3344 is a temporary file name. */
3345 static int delete_this_arg
;
3347 /* Nonzero means %w has been seen; the next arg to be terminated
3348 is the output file name of this compilation. */
3349 static int this_is_output_file
;
3351 /* Nonzero means %s has been seen; the next arg to be terminated
3352 is the name of a library file and we should try the standard
3353 search dirs for it. */
3354 static int this_is_library_file
;
3356 /* Nonzero means that the input of this command is coming from a pipe. */
3357 static int input_from_pipe
;
3359 /* Process the spec SPEC and run the commands specified therein.
3360 Returns 0 if the spec is successfully processed; -1 if failed. */
3370 delete_this_arg
= 0;
3371 this_is_output_file
= 0;
3372 this_is_library_file
= 0;
3373 input_from_pipe
= 0;
3375 value
= do_spec_1 (spec
, 0, NULL_PTR
);
3377 /* Force out any unfinished command.
3378 If -pipe, this forces out the last command if it ended in `|'. */
3381 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3384 if (argbuf_index
> 0)
3391 /* Process the sub-spec SPEC as a portion of a larger spec.
3392 This is like processing a whole spec except that we do
3393 not initialize at the beginning and we do not supply a
3394 newline by default at the end.
3395 INSWITCH nonzero means don't process %-sequences in SPEC;
3396 in this case, % is treated as an ordinary character.
3397 This is used while substituting switches.
3398 INSWITCH nonzero also causes SPC not to terminate an argument.
3400 Value is zero unless a line was finished
3401 and the command on that line reported an error. */
3404 do_spec_1 (spec
, inswitch
, soft_matched_part
)
3407 char *soft_matched_part
;
3409 register char *p
= spec
;
3416 /* If substituting a switch, treat all chars like letters.
3417 Otherwise, NL, SPC, TAB and % are special. */
3418 switch (inswitch
? 'a' : c
)
3421 /* End of line: finish any pending argument,
3422 then run the pending command if one has been started. */
3425 obstack_1grow (&obstack
, 0);
3426 string
= obstack_finish (&obstack
);
3427 if (this_is_library_file
)
3428 string
= find_file (string
);
3429 store_arg (string
, delete_this_arg
, this_is_output_file
);
3430 if (this_is_output_file
)
3431 outfiles
[input_file_number
] = string
;
3435 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3437 for (i
= 0; i
< n_switches
; i
++)
3438 if (!strcmp (switches
[i
].part1
, "pipe"))
3441 /* A `|' before the newline means use a pipe here,
3442 but only if -pipe was specified.
3443 Otherwise, execute now and don't pass the `|' as an arg. */
3446 input_from_pipe
= 1;
3447 switches
[i
].valid
= 1;
3454 if (argbuf_index
> 0)
3460 /* Reinitialize for a new command, and for a new argument. */
3463 delete_this_arg
= 0;
3464 this_is_output_file
= 0;
3465 this_is_library_file
= 0;
3466 input_from_pipe
= 0;
3470 /* End any pending argument. */
3473 obstack_1grow (&obstack
, 0);
3474 string
= obstack_finish (&obstack
);
3475 if (this_is_library_file
)
3476 string
= find_file (string
);
3477 store_arg (string
, delete_this_arg
, this_is_output_file
);
3478 if (this_is_output_file
)
3479 outfiles
[input_file_number
] = string
;
3483 obstack_1grow (&obstack
, c
);
3489 /* Space or tab ends an argument if one is pending. */
3492 obstack_1grow (&obstack
, 0);
3493 string
= obstack_finish (&obstack
);
3494 if (this_is_library_file
)
3495 string
= find_file (string
);
3496 store_arg (string
, delete_this_arg
, this_is_output_file
);
3497 if (this_is_output_file
)
3498 outfiles
[input_file_number
] = string
;
3500 /* Reinitialize for a new argument. */
3502 delete_this_arg
= 0;
3503 this_is_output_file
= 0;
3504 this_is_library_file
= 0;
3511 fatal ("Invalid specification! Bug in cc.");
3514 obstack_grow (&obstack
, input_basename
, basename_length
);
3519 delete_this_arg
= 2;
3522 /* Dump out the directories specified with LIBRARY_PATH,
3523 followed by the absolute directories
3524 that we search for startfiles. */
3527 struct prefix_list
*pl
= startfile_prefixes
.plist
;
3528 size_t bufsize
= 100;
3529 char *buffer
= (char *) xmalloc (bufsize
);
3532 for (; pl
; pl
= pl
->next
)
3534 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3535 /* Used on systems which record the specified -L dirs
3536 and use them to search for dynamic linking. */
3537 /* Relative directories always come from -B,
3538 and it is better not to use them for searching
3539 at run time. In particular, stage1 loses */
3540 if (pl
->prefix
[0] != '/' && pl
->prefix
[0] != DIR_SEPARATOR
)
3543 /* Try subdirectory if there is one. */
3544 if (multilib_dir
!= NULL
)
3548 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
3550 bufsize
= (strlen (pl
->prefix
)
3551 + strlen (machine_suffix
)) * 2 + 1;
3552 buffer
= (char *) xrealloc (buffer
, bufsize
);
3553 strcpy (buffer
, pl
->prefix
);
3554 strcat (buffer
, machine_suffix
);
3555 if (is_directory (buffer
, multilib_dir
, 1))
3557 do_spec_1 ("-L", 0, NULL_PTR
);
3558 #ifdef SPACE_AFTER_L_OPTION
3559 do_spec_1 (" ", 0, NULL_PTR
);
3561 do_spec_1 (buffer
, 1, NULL_PTR
);
3562 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3563 /* Make this a separate argument. */
3564 do_spec_1 (" ", 0, NULL_PTR
);
3567 if (!pl
->require_machine_suffix
)
3569 if (is_directory (pl
->prefix
, multilib_dir
, 1))
3571 do_spec_1 ("-L", 0, NULL_PTR
);
3572 #ifdef SPACE_AFTER_L_OPTION
3573 do_spec_1 (" ", 0, NULL_PTR
);
3575 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3576 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3577 /* Make this a separate argument. */
3578 do_spec_1 (" ", 0, NULL_PTR
);
3584 if (is_directory (pl
->prefix
, machine_suffix
, 1))
3586 do_spec_1 ("-L", 0, NULL_PTR
);
3587 #ifdef SPACE_AFTER_L_OPTION
3588 do_spec_1 (" ", 0, NULL_PTR
);
3590 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3591 /* Remove slash from machine_suffix. */
3592 if (strlen (machine_suffix
) >= bufsize
)
3593 bufsize
= strlen (machine_suffix
) * 2 + 1;
3594 buffer
= (char *) xrealloc (buffer
, bufsize
);
3595 strcpy (buffer
, machine_suffix
);
3596 idx
= strlen (buffer
);
3597 if (buffer
[idx
- 1] == '/'
3598 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3599 buffer
[idx
- 1] = 0;
3600 do_spec_1 (buffer
, 1, NULL_PTR
);
3601 /* Make this a separate argument. */
3602 do_spec_1 (" ", 0, NULL_PTR
);
3605 if (!pl
->require_machine_suffix
)
3607 if (is_directory (pl
->prefix
, "", 1))
3609 do_spec_1 ("-L", 0, NULL_PTR
);
3610 #ifdef SPACE_AFTER_L_OPTION
3611 do_spec_1 (" ", 0, NULL_PTR
);
3613 /* Remove slash from pl->prefix. */
3614 if (strlen (pl
->prefix
) >= bufsize
)
3615 bufsize
= strlen (pl
->prefix
) * 2 + 1;
3616 buffer
= (char *) xrealloc (buffer
, bufsize
);
3617 strcpy (buffer
, pl
->prefix
);
3618 idx
= strlen (buffer
);
3619 if (buffer
[idx
- 1] == '/'
3620 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3621 buffer
[idx
- 1] = 0;
3622 do_spec_1 (buffer
, 1, NULL_PTR
);
3623 /* Make this a separate argument. */
3624 do_spec_1 (" ", 0, NULL_PTR
);
3633 /* {...:%efoo} means report an error with `foo' as error message
3634 and don't execute any more commands for this file. */
3638 while (*p
!= 0 && *p
!= '\n') p
++;
3639 buf
= (char *) alloca (p
- q
+ 1);
3640 strncpy (buf
, q
, p
- q
);
3650 if (save_temps_flag
)
3652 obstack_grow (&obstack
, input_basename
, basename_length
);
3653 delete_this_arg
= 0;
3657 #ifdef MKTEMP_EACH_FILE
3658 /* ??? This has a problem: the total number of
3659 values mktemp can return is limited.
3660 That matters for the names of object files.
3661 In 2.4, do something about that. */
3662 struct temp_name
*t
;
3666 if (p
[0] == '%' && p
[1] == 'O')
3668 /* We don't support extra suffix characters after %O. */
3669 if (*p
== '.' || ISALPHA ((unsigned char)*p
))
3671 suffix
= OBJECT_SUFFIX
;
3672 suffix_length
= strlen (OBJECT_SUFFIX
);
3677 while (*p
== '.' || ISALPHA ((unsigned char)*p
))
3679 suffix_length
= p
- suffix
;
3682 /* See if we already have an association of %g/%u/%U and
3684 for (t
= temp_names
; t
; t
= t
->next
)
3685 if (t
->length
== suffix_length
3686 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
3687 && t
->unique
== (c
!= 'g'))
3690 /* Make a new association if needed. %u requires one. */
3691 if (t
== 0 || c
== 'u')
3695 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
3696 t
->next
= temp_names
;
3699 t
->length
= suffix_length
;
3700 t
->suffix
= save_string (suffix
, suffix_length
);
3701 t
->unique
= (c
!= 'g');
3702 temp_filename
= make_temp_file (t
->suffix
);
3703 temp_filename_length
= strlen (temp_filename
);
3704 t
->filename
= temp_filename
;
3705 t
->filename_length
= temp_filename_length
;
3708 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
3709 delete_this_arg
= 1;
3711 obstack_grow (&obstack
, temp_filename
, temp_filename_length
);
3712 if (c
== 'u' || c
== 'U')
3718 sprintf (buff
, "%d", unique
);
3719 obstack_grow (&obstack
, buff
, strlen (buff
));
3722 delete_this_arg
= 1;
3728 obstack_grow (&obstack
, input_filename
, input_filename_length
);
3734 struct prefix_list
*pl
= include_prefixes
.plist
;
3736 if (gcc_exec_prefix
)
3738 do_spec_1 ("-iprefix", 1, NULL_PTR
);
3739 /* Make this a separate argument. */
3740 do_spec_1 (" ", 0, NULL_PTR
);
3741 do_spec_1 (gcc_exec_prefix
, 1, NULL_PTR
);
3742 do_spec_1 (" ", 0, NULL_PTR
);
3745 for (; pl
; pl
= pl
->next
)
3747 do_spec_1 ("-isystem", 1, NULL_PTR
);
3748 /* Make this a separate argument. */
3749 do_spec_1 (" ", 0, NULL_PTR
);
3750 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3751 do_spec_1 (" ", 0, NULL_PTR
);
3758 int max
= n_infiles
;
3759 #ifdef LANG_SPECIFIC_DRIVER
3760 max
+= lang_specific_extra_outfiles
;
3762 for (i
= 0; i
< max
; i
++)
3764 store_arg (outfiles
[i
], 0, 0);
3769 obstack_grow (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
3774 this_is_library_file
= 1;
3778 this_is_output_file
= 1;
3783 int cur_index
= argbuf_index
;
3784 /* Handle the {...} following the %W. */
3787 p
= handle_braces (p
+ 1);
3790 /* If any args were output, mark the last one for deletion
3792 if (argbuf_index
!= cur_index
)
3793 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
3797 /* %x{OPTION} records OPTION for %X to output. */
3803 /* Skip past the option value and make a copy. */
3808 string
= save_string (p1
+ 1, p
- p1
- 2);
3810 /* See if we already recorded this option. */
3811 for (i
= 0; i
< n_linker_options
; i
++)
3812 if (! strcmp (string
, linker_options
[i
]))
3818 /* This option is new; add it. */
3819 add_linker_option (string
, strlen (string
));
3823 /* Dump out the options accumulated previously using %x. */
3825 for (i
= 0; i
< n_linker_options
; i
++)
3827 do_spec_1 (linker_options
[i
], 1, NULL_PTR
);
3828 /* Make each accumulated option a separate argument. */
3829 do_spec_1 (" ", 0, NULL_PTR
);
3833 /* Dump out the options accumulated previously using -Wa,. */
3835 for (i
= 0; i
< n_assembler_options
; i
++)
3837 do_spec_1 (assembler_options
[i
], 1, NULL_PTR
);
3838 /* Make each accumulated option a separate argument. */
3839 do_spec_1 (" ", 0, NULL_PTR
);
3843 /* Dump out the options accumulated previously using -Wp,. */
3845 for (i
= 0; i
< n_preprocessor_options
; i
++)
3847 do_spec_1 (preprocessor_options
[i
], 1, NULL_PTR
);
3848 /* Make each accumulated option a separate argument. */
3849 do_spec_1 (" ", 0, NULL_PTR
);
3853 /* Here are digits and numbers that just process
3854 a certain constant string as a spec. */
3857 value
= do_spec_1 (cc1_spec
, 0, NULL_PTR
);
3863 value
= do_spec_1 (cc1plus_spec
, 0, NULL_PTR
);
3869 value
= do_spec_1 (asm_spec
, 0, NULL_PTR
);
3875 value
= do_spec_1 (asm_final_spec
, 0, NULL_PTR
);
3881 value
= do_spec_1 (signed_char_spec
, 0, NULL_PTR
);
3887 value
= do_spec_1 (cpp_spec
, 0, NULL_PTR
);
3893 value
= do_spec_1 (endfile_spec
, 0, NULL_PTR
);
3899 value
= do_spec_1 (link_spec
, 0, NULL_PTR
);
3905 value
= do_spec_1 (lib_spec
, 0, NULL_PTR
);
3911 value
= do_spec_1 (libgcc_spec
, 0, NULL_PTR
);
3918 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
3922 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3926 if (! strncmp (y
, "-D", 2))
3927 /* Copy the whole option. */
3928 while (*y
&& *y
!= ' ' && *y
!= '\t')
3930 else if (*y
== ' ' || *y
== '\t')
3931 /* Copy whitespace to the result. */
3933 /* Don't copy other options. */
3940 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3948 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
3952 /* Copy all of CPP_PREDEFINES into BUF,
3953 but put __ after every -D and at the end of each arg. */
3957 if (! strncmp (y
, "-D", 2))
3966 && ! ISUPPER ((unsigned char)*(y
+1))))
3968 /* Stick __ at front of macro name. */
3971 /* Arrange to stick __ at the end as well. */
3975 /* Copy the macro name. */
3976 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3985 /* Copy the value given, if any. */
3986 while (*y
&& *y
!= ' ' && *y
!= '\t')
3989 else if (*y
== ' ' || *y
== '\t')
3990 /* Copy whitespace to the result. */
3992 /* Don't copy -A options */
3998 /* Copy all of CPP_PREDEFINES into BUF,
3999 but put __ after every -D. */
4003 if (! strncmp (y
, "-D", 2))
4009 && ! ISUPPER ((unsigned char)*(y
+1))))
4011 /* Stick -D__ at front of macro name. */
4017 /* Copy the macro name. */
4018 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4021 /* Copy the value given, if any. */
4022 while (*y
&& *y
!= ' ' && *y
!= '\t')
4027 /* Do not copy this macro - we have just done it before */
4028 while (*y
&& *y
!= ' ' && *y
!= '\t')
4032 else if (*y
== ' ' || *y
== '\t')
4033 /* Copy whitespace to the result. */
4035 /* Don't copy -A options */
4041 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4045 if (! strncmp (y
, "-A", 2))
4046 /* Copy the whole option. */
4047 while (*y
&& *y
!= ' ' && *y
!= '\t')
4049 else if (*y
== ' ' || *y
== '\t')
4050 /* Copy whitespace to the result. */
4052 /* Don't copy other options. */
4059 value
= do_spec_1 (buf
, 0, NULL_PTR
);
4066 value
= do_spec_1 (startfile_spec
, 0, NULL_PTR
);
4071 /* Here we define characters other than letters and digits. */
4074 p
= handle_braces (p
);
4080 obstack_1grow (&obstack
, '%');
4084 do_spec_1 (soft_matched_part
, 1, NULL_PTR
);
4085 do_spec_1 (" ", 0, NULL_PTR
);
4088 /* Process a string found as the value of a spec given by name.
4089 This feature allows individual machine descriptions
4090 to add and use their own specs.
4091 %[...] modifies -D options the way %P does;
4092 %(...) uses the spec unmodified. */
4094 error ("Warning: use of obsolete %%[ operator in specs");
4098 struct spec_list
*sl
;
4101 /* The string after the S/P is the name of a spec that is to be
4103 while (*p
&& *p
!= ')' && *p
!= ']')
4106 /* See if it's in the list */
4107 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
4108 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
4110 name
= *(sl
->ptr_spec
);
4112 fprintf (stderr
, "Processing spec %c%s%c, which is '%s'\n",
4113 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
4122 value
= do_spec_1 (name
, 0, NULL_PTR
);
4128 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
4133 /* Copy all of NAME into BUF, but put __ after
4134 every -D and at the end of each arg, */
4137 if (! strncmp (y
, "-D", 2))
4147 else if (flag
&& (*y
== ' ' || *y
== '\t' || *y
== '='
4148 || *y
== '}' || *y
== 0))
4161 value
= do_spec_1 (buf
, 0, NULL_PTR
);
4167 /* Discard the closing paren or bracket. */
4175 int c1
= *p
++; /* Select first or second version number. */
4176 char *v
= compiler_version
;
4179 /* The format of the version string is
4180 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4182 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4183 while (! ISDIGIT (*v
))
4185 if (v
> compiler_version
&& v
[-1] != '-')
4188 /* If desired, advance to second version number. */
4191 /* Set V after the first period. */
4192 while (ISDIGIT (*v
))
4199 /* Set Q at the next period or at the end. */
4201 while (ISDIGIT (*q
))
4203 if (*q
!= 0 && *q
!= ' ' && *q
!= '.' && *q
!= '-')
4206 /* Put that part into the command. */
4207 obstack_grow (&obstack
, v
, q
- v
);
4213 if (input_from_pipe
)
4214 do_spec_1 ("-", 0, NULL_PTR
);
4223 /* Backslash: treat next character as ordinary. */
4228 /* Ordinary character: put it into the current argument. */
4229 obstack_1grow (&obstack
, c
);
4233 return 0; /* End of string */
4236 /* Return 0 if we call do_spec_1 and that returns -1. */
4242 char *filter
, *body
= NULL
, *endbody
;
4246 int include_blanks
= 1;
4249 /* A '^' after the open-brace means to not give blanks before args. */
4250 include_blanks
= 0, ++p
;
4253 /* A `|' after the open-brace means,
4254 if the test fails, output a single minus sign rather than nothing.
4255 This is used in %{|!pipe:...}. */
4259 negate
= suffix
= 0;
4262 /* A `!' after the open-brace negates the condition:
4263 succeed if the specified switch is not present. */
4267 /* A `.' after the open-brace means test against the current suffix. */
4277 while (*p
!= ':' && *p
!= '}' && *p
!= '|') p
++;
4279 if (*p
== '|' && pipe_p
)
4286 register int count
= 1;
4287 register char *q
= p
;
4289 while (*q
++ != ':') continue;
4305 body
= p
, endbody
= p
+1;
4310 int found
= (input_suffix
!= 0
4311 && (long) strlen (input_suffix
) == (long)(p
- filter
)
4312 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
4318 && do_spec_1 (save_string (body
, endbody
-body
-1), 0, NULL_PTR
) < 0)
4321 else if (p
[-1] == '*' && p
[0] == '}')
4323 /* Substitute all matching switches as separate args. */
4326 for (i
= 0; i
< n_switches
; i
++)
4327 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4328 && check_live_switch (i
, p
- filter
))
4329 give_switch (i
, 0, include_blanks
);
4333 /* Test for presence of the specified switch. */
4337 /* If name specified ends in *, as in {x*:...},
4338 check for %* and handle that case. */
4339 if (p
[-1] == '*' && !negate
)
4344 /* First see whether we have %*. */
4348 if (*r
== '%' && r
[1] == '*')
4352 /* If we do, handle that case. */
4355 /* Substitute all matching switches as separate args.
4356 But do this by substituting for %*
4357 in the text that follows the colon. */
4359 unsigned hard_match_len
= p
- filter
- 1;
4360 char *string
= save_string (body
, endbody
- body
- 1);
4362 for (i
= 0; i
< n_switches
; i
++)
4363 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4364 && check_live_switch (i
, -1))
4366 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
4367 /* Pass any arguments this switch has. */
4368 give_switch (i
, 1, 1);
4371 /* We didn't match. Try again. */
4378 /* If name specified ends in *, as in {x*:...},
4379 check for presence of any switch name starting with x. */
4382 for (i
= 0; i
< n_switches
; i
++)
4384 unsigned hard_match_len
= p
- filter
- 1;
4386 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4387 && check_live_switch (i
, hard_match_len
))
4393 /* Otherwise, check for presence of exact name specified. */
4396 for (i
= 0; i
< n_switches
; i
++)
4398 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4399 && switches
[i
].part1
[p
- filter
] == 0
4400 && check_live_switch (i
, -1))
4408 /* If it is as desired (present for %{s...}, absent for %{!s...})
4409 then substitute either the switch or the specified
4410 conditional text. */
4411 if (present
!= negate
)
4415 give_switch (i
, 0, include_blanks
);
4419 if (do_spec_1 (save_string (body
, endbody
- body
- 1),
4426 /* Here if a %{|...} conditional fails: output a minus sign,
4427 which means "standard output" or "standard input". */
4428 do_spec_1 ("-", 0, NULL_PTR
);
4433 /* We didn't match; try again. */
4440 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4441 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4442 spec, or -1 if either exact match or %* is used.
4444 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4445 whose value does not begin with "no-" is obsoleted by the same value
4446 with the "no-", similarly for a switch with the "no-" prefix. */
4449 check_live_switch (switchnum
, prefix_length
)
4453 char *name
= switches
[switchnum
].part1
;
4456 /* In the common case of {<at-most-one-letter>*}, a negating
4457 switch would always match, so ignore that case. We will just
4458 send the conflicting switches to the compiler phase. */
4459 if (prefix_length
>= 0 && prefix_length
<= 1)
4462 /* If we already processed this switch and determined if it was
4463 live or not, return our past determination. */
4464 if (switches
[switchnum
].live_cond
!= 0)
4465 return switches
[switchnum
].live_cond
> 0;
4467 /* Now search for duplicate in a manner that depends on the name. */
4471 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4472 if (switches
[i
].part1
[0] == 'O')
4474 switches
[switchnum
].valid
= 1;
4475 switches
[switchnum
].live_cond
= -1;
4480 case 'W': case 'f': case 'm':
4481 if (! strncmp (name
+ 1, "no-", 3))
4483 /* We have Xno-YYY, search for XYYY. */
4484 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4485 if (switches
[i
].part1
[0] == name
[0]
4486 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
4488 switches
[switchnum
].valid
= 1;
4489 switches
[switchnum
].live_cond
= -1;
4495 /* We have XYYY, search for Xno-YYY. */
4496 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4497 if (switches
[i
].part1
[0] == name
[0]
4498 && switches
[i
].part1
[1] == 'n'
4499 && switches
[i
].part1
[2] == 'o'
4500 && switches
[i
].part1
[3] == '-'
4501 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
4503 switches
[switchnum
].valid
= 1;
4504 switches
[switchnum
].live_cond
= -1;
4511 /* Otherwise the switch is live. */
4512 switches
[switchnum
].live_cond
= 1;
4516 /* Pass a switch to the current accumulating command
4517 in the same form that we received it.
4518 SWITCHNUM identifies the switch; it is an index into
4519 the vector of switches gcc received, which is `switches'.
4520 This cannot fail since it never finishes a command line.
4522 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4524 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
4528 give_switch (switchnum
, omit_first_word
, include_blanks
)
4530 int omit_first_word
;
4533 if (!omit_first_word
)
4535 do_spec_1 ("-", 0, NULL_PTR
);
4536 do_spec_1 (switches
[switchnum
].part1
, 1, NULL_PTR
);
4539 if (switches
[switchnum
].args
!= 0)
4542 for (p
= switches
[switchnum
].args
; *p
; p
++)
4545 do_spec_1 (" ", 0, NULL_PTR
);
4546 do_spec_1 (*p
, 1, NULL_PTR
);
4550 do_spec_1 (" ", 0, NULL_PTR
);
4551 switches
[switchnum
].valid
= 1;
4554 /* Search for a file named NAME trying various prefixes including the
4555 user's -B prefix and some standard ones.
4556 Return the absolute file name found. If nothing is found, return NAME. */
4564 /* Try multilib_dir if it is defined. */
4565 if (multilib_dir
!= NULL
)
4569 try = (char *) alloca (strlen (multilib_dir
) + strlen (name
) + 2);
4570 strcpy (try, multilib_dir
);
4571 strcat (try, dir_separator_str
);
4574 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
4576 /* If we don't find it in the multi library dir, then fall
4577 through and look for it in the normal places. */
4578 if (newname
!= NULL
)
4582 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
4583 return newname
? newname
: name
;
4586 /* Determine whether a directory exists. If LINKER, return 0 for
4587 certain fixed names not needed by the linker. If not LINKER, it is
4588 only important to return 0 if the host machine has a small ARG_MAX
4592 is_directory (path1
, path2
, linker
)
4597 int len1
= strlen (path1
);
4598 int len2
= strlen (path2
);
4599 char *path
= (char *) alloca (3 + len1
+ len2
);
4603 #ifndef SMALL_ARG_MAX
4608 /* Construct the path from the two parts. Ensure the string ends with "/.".
4609 The resulting path will be a directory even if the given path is a
4611 memcpy (path
, path1
, len1
);
4612 memcpy (path
+ len1
, path2
, len2
);
4613 cp
= path
+ len1
+ len2
;
4614 if (cp
[-1] != '/' && cp
[-1] != DIR_SEPARATOR
)
4615 *cp
++ = DIR_SEPARATOR
;
4619 /* Exclude directories that the linker is known to search. */
4622 && strcmp (path
, concat (dir_separator_str
, "lib",
4623 dir_separator_str
, ".", NULL_PTR
)) == 0)
4625 && strcmp (path
, concat (dir_separator_str
, "usr",
4626 dir_separator_str
, "lib",
4627 dir_separator_str
, ".", NULL_PTR
)) == 0)))
4630 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
4633 /* On fatal signals, delete all the temporary files. */
4636 fatal_error (signum
)
4639 signal (signum
, SIG_DFL
);
4640 delete_failure_queue ();
4641 delete_temp_files ();
4642 /* Get the same signal again, this time not handled,
4643 so its normal effect occurs. */
4644 kill (getpid (), signum
);
4655 int linker_was_run
= 0;
4656 char *explicit_link_files
;
4659 struct user_specs
*uptr
;
4661 p
= argv
[0] + strlen (argv
[0]);
4662 while (p
!= argv
[0] && p
[-1] != '/' && p
[-1] != DIR_SEPARATOR
) --p
;
4665 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
4666 signal (SIGINT
, fatal_error
);
4668 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
4669 signal (SIGHUP
, fatal_error
);
4671 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
4672 signal (SIGTERM
, fatal_error
);
4674 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
4675 signal (SIGPIPE
, fatal_error
);
4679 argbuf
= (char **) xmalloc (argbuf_length
* sizeof (char *));
4681 obstack_init (&obstack
);
4683 /* Build multilib_select, et. al from the separate lines that make up each
4684 multilib selection. */
4686 char **q
= multilib_raw
;
4689 obstack_init (&multilib_obstack
);
4690 while ((p
= *q
++) != (char *) 0)
4691 obstack_grow (&multilib_obstack
, p
, strlen (p
));
4693 obstack_1grow (&multilib_obstack
, 0);
4694 multilib_select
= obstack_finish (&multilib_obstack
);
4696 q
= multilib_matches_raw
;
4697 while ((p
= *q
++) != (char *) 0)
4698 obstack_grow (&multilib_obstack
, p
, strlen (p
));
4700 obstack_1grow (&multilib_obstack
, 0);
4701 multilib_matches
= obstack_finish (&multilib_obstack
);
4705 i
< sizeof (multilib_defaults_raw
) / sizeof (multilib_defaults_raw
[0]);
4709 obstack_1grow (&multilib_obstack
, ' ');
4710 obstack_grow (&multilib_obstack
,
4711 multilib_defaults_raw
[i
],
4712 strlen (multilib_defaults_raw
[i
]));
4716 obstack_1grow (&multilib_obstack
, 0);
4717 multilib_defaults
= obstack_finish (&multilib_obstack
);
4720 /* Set up to remember the pathname of gcc and any options
4721 needed for collect. We use argv[0] instead of programname because
4722 we need the complete pathname. */
4723 obstack_init (&collect_obstack
);
4724 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4725 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0])+1);
4726 putenv (obstack_finish (&collect_obstack
));
4728 #ifdef INIT_ENVIRONMENT
4729 /* Set up any other necessary machine specific environment variables. */
4730 putenv (INIT_ENVIRONMENT
);
4733 /* Choose directory for temp files. */
4735 #ifndef MKTEMP_EACH_FILE
4736 temp_filename
= choose_temp_base ();
4737 temp_filename_length
= strlen (temp_filename
);
4740 /* Make a table of what switches there are (switches, n_switches).
4741 Make a table of specified input files (infiles, n_infiles).
4742 Decode switches that are handled locally. */
4744 process_command (argc
, argv
);
4749 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4751 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4752 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4755 for (i
= 0; (int)i
< n_switches
; i
++)
4760 obstack_grow (&collect_obstack
, " ", 1);
4763 obstack_grow (&collect_obstack
, "'-", 2);
4764 q
= switches
[i
].part1
;
4765 while ((p
= index (q
,'\'')))
4767 obstack_grow (&collect_obstack
, q
, p
-q
);
4768 obstack_grow (&collect_obstack
, "'\\''", 4);
4771 obstack_grow (&collect_obstack
, q
, strlen (q
));
4772 obstack_grow (&collect_obstack
, "'", 1);
4774 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4776 obstack_grow (&collect_obstack
, " '", 2);
4778 while ((p
= index (q
,'\'')))
4780 obstack_grow (&collect_obstack
, q
, p
-q
);
4781 obstack_grow (&collect_obstack
, "'\\''", 4);
4784 obstack_grow (&collect_obstack
, q
, strlen (q
));
4785 obstack_grow (&collect_obstack
, "'", 1);
4788 obstack_grow (&collect_obstack
, "\0", 1);
4789 putenv (obstack_finish (&collect_obstack
));
4792 /* Initialize the vector of specs to just the default.
4793 This means one element containing 0s, as a terminator. */
4795 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
4796 bcopy ((char *) default_compilers
, (char *) compilers
,
4797 sizeof default_compilers
);
4798 n_compilers
= n_default_compilers
;
4800 /* Read specs from a file if there is one. */
4802 machine_suffix
= concat (spec_machine
, dir_separator_str
,
4803 spec_version
, dir_separator_str
, NULL_PTR
);
4804 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL_PTR
);
4806 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
4807 /* Read the specs file unless it is a default one. */
4808 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
4809 read_specs (specs_file
, TRUE
);
4813 /* We need to check standard_exec_prefix/just_machine_suffix/specs
4814 for any override of as, ld and libraries. */
4815 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
4816 + strlen (just_machine_suffix
)
4817 + sizeof ("specs"));
4819 strcpy (specs_file
, standard_exec_prefix
);
4820 strcat (specs_file
, just_machine_suffix
);
4821 strcat (specs_file
, "specs");
4822 if (access (specs_file
, R_OK
) == 0)
4823 read_specs (specs_file
, TRUE
);
4825 /* Process any user specified specs in the order given on the command
4827 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
4829 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
, R_OK
);
4830 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
4833 /* If not cross-compiling, look for startfiles in the standard places. */
4834 /* The fact that these are done here, after reading the specs file,
4835 means that it cannot be found in these directories.
4836 But that's okay. It should never be there anyway. */
4837 if (*cross_compile
== '0')
4839 #ifdef MD_EXEC_PREFIX
4840 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
4841 add_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
4844 #ifdef MD_STARTFILE_PREFIX
4845 add_prefix (&startfile_prefixes
, md_startfile_prefix
, "GCC",
4849 #ifdef MD_STARTFILE_PREFIX_1
4850 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, "GCC",
4854 /* If standard_startfile_prefix is relative, base it on
4855 standard_exec_prefix. This lets us move the installed tree
4856 as a unit. If GCC_EXEC_PREFIX is defined, base
4857 standard_startfile_prefix on that as well. */
4858 if (*standard_startfile_prefix
== '/'
4859 || *standard_startfile_prefix
== DIR_SEPARATOR
4860 || *standard_startfile_prefix
== '$'
4862 /* Check for disk name on MS-DOS-based systems. */
4863 || (standard_startfile_prefix
[1] == ':'
4864 && (standard_startfile_prefix
[2] == DIR_SEPARATOR
4865 || standard_startfile_prefix
[2] == '/'))
4868 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, "BINUTILS",
4872 if (gcc_exec_prefix
)
4873 add_prefix (&startfile_prefixes
,
4874 concat (gcc_exec_prefix
, machine_suffix
,
4875 standard_startfile_prefix
, NULL_PTR
),
4876 NULL_PTR
, 0, 0, NULL_PTR
);
4877 add_prefix (&startfile_prefixes
,
4878 concat (standard_exec_prefix
,
4880 standard_startfile_prefix
, NULL_PTR
),
4881 NULL_PTR
, 0, 0, NULL_PTR
);
4884 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
4885 "BINUTILS", 0, 0, NULL_PTR
);
4886 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
4887 "BINUTILS", 0, 0, NULL_PTR
);
4888 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4889 add_prefix (&startfile_prefixes
, "./", NULL_PTR
, 0, 1, NULL_PTR
);
4894 if (*standard_startfile_prefix
!= DIR_SEPARATOR
&& gcc_exec_prefix
)
4895 add_prefix (&startfile_prefixes
,
4896 concat (gcc_exec_prefix
, machine_suffix
,
4897 standard_startfile_prefix
, NULL_PTR
),
4898 "BINUTILS", 0, 0, NULL_PTR
);
4901 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4902 if (gcc_exec_prefix
)
4904 char * temp
= (char *) xmalloc (strlen (gcc_exec_prefix
)
4905 + strlen (spec_version
)
4906 + strlen (spec_machine
) + 3);
4907 strcpy (temp
, gcc_exec_prefix
);
4908 strcat (temp
, spec_machine
);
4909 strcat (temp
, dir_separator_str
);
4910 strcat (temp
, spec_version
);
4911 strcat (temp
, dir_separator_str
);
4912 gcc_exec_prefix
= temp
;
4915 /* Now we have the specs.
4916 Set the `valid' bits for switches that match anything in any spec. */
4918 validate_all_switches ();
4920 /* Now that we have the switches and the specs, set
4921 the subdirectory based on the options. */
4922 set_multilib_dir ();
4924 /* Warn about any switches that no pass was interested in. */
4926 for (i
= 0; (int)i
< n_switches
; i
++)
4927 if (! switches
[i
].valid
)
4928 error ("unrecognized option `-%s'", switches
[i
].part1
);
4930 /* Obey some of the options. */
4932 if (print_search_dirs
)
4934 printf ("install: %s%s\n", standard_exec_prefix
, machine_suffix
);
4935 printf ("programs: %s\n", build_search_list (&exec_prefixes
, "", 0));
4936 printf ("libraries: %s\n", build_search_list (&startfile_prefixes
, "", 0));
4940 if (print_file_name
)
4942 printf ("%s\n", find_file (print_file_name
));
4946 if (print_prog_name
)
4948 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
4949 printf ("%s\n", (newname
? newname
: print_prog_name
));
4953 if (print_multi_lib
)
4955 print_multilib_info ();
4959 if (print_multi_directory
)
4961 if (multilib_dir
== NULL
)
4964 printf ("%s\n", multilib_dir
);
4968 if (print_help_list
)
4974 printf ("\nReport bugs to egcs-bugs@cygnus.com.\n");
4975 printf ("Please see the file BUGS (included with the sources) first.\n");
4980 /* We do not exit here. Instead we have created a fake input file
4981 called 'help-dummy' which needs to be compiled, and we pass this
4982 on the the various sub-processes, along with the --help switch. */
4989 /* compiler_version is truncated at the first space when initialized
4990 from version string, so truncate version_string at the first space
4991 before comparing. */
4992 for (n
= 0; version_string
[n
]; n
++)
4993 if (version_string
[n
] == ' ')
4996 if (! strncmp (version_string
, compiler_version
, n
)
4997 && compiler_version
[n
] == 0)
4998 fprintf (stderr
, "gcc version %s\n", version_string
);
5000 fprintf (stderr
, "gcc driver version %s executing gcc version %s\n",
5001 version_string
, compiler_version
);
5007 if (n_infiles
== added_libraries
)
5008 fatal ("No input files");
5010 /* Make a place to record the compiler output file names
5011 that correspond to the input files. */
5014 #ifdef LANG_SPECIFIC_DRIVER
5015 i
+= lang_specific_extra_outfiles
;
5017 outfiles
= (char **) xmalloc (i
* sizeof (char *));
5018 bzero ((char *) outfiles
, i
* sizeof (char *));
5020 /* Record which files were specified explicitly as link input. */
5022 explicit_link_files
= xmalloc (n_infiles
);
5023 bzero (explicit_link_files
, n_infiles
);
5025 for (i
= 0; (int)i
< n_infiles
; i
++)
5027 register struct compiler
*cp
= 0;
5028 int this_file_error
= 0;
5030 /* Tell do_spec what to substitute for %i. */
5032 input_filename
= infiles
[i
].name
;
5033 input_filename_length
= strlen (input_filename
);
5034 input_file_number
= i
;
5036 /* Use the same thing in %o, unless cp->spec says otherwise. */
5038 outfiles
[i
] = input_filename
;
5040 /* Figure out which compiler from the file's suffix. */
5042 cp
= lookup_compiler (infiles
[i
].name
, input_filename_length
,
5043 infiles
[i
].language
);
5047 /* Ok, we found an applicable compiler. Run its spec. */
5048 /* First say how much of input_filename to substitute for %b */
5052 if (cp
->spec
[0][0] == '#')
5053 error ("%s: %s compiler not installed on this system",
5054 input_filename
, &cp
->spec
[0][1]);
5056 input_basename
= input_filename
;
5057 for (p
= input_filename
; *p
; p
++)
5058 if (*p
== '/' || *p
== DIR_SEPARATOR
)
5059 input_basename
= p
+ 1;
5061 /* Find a suffix starting with the last period,
5062 and set basename_length to exclude that suffix. */
5063 basename_length
= strlen (input_basename
);
5064 p
= input_basename
+ basename_length
;
5065 while (p
!= input_basename
&& *p
!= '.') --p
;
5066 if (*p
== '.' && p
!= input_basename
)
5068 basename_length
= p
- input_basename
;
5069 input_suffix
= p
+ 1;
5075 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
5077 len
+= strlen (cp
->spec
[j
]);
5079 p
= (char *) xmalloc (len
+ 1);
5082 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
5085 strcpy (p
+ len
, cp
->spec
[j
]);
5086 len
+= strlen (cp
->spec
[j
]);
5089 value
= do_spec (p
);
5092 this_file_error
= 1;
5095 /* If this file's name does not contain a recognized suffix,
5096 record it as explicit linker input. */
5099 explicit_link_files
[i
] = 1;
5101 /* Clear the delete-on-failure queue, deleting the files in it
5102 if this compilation failed. */
5104 if (this_file_error
)
5106 delete_failure_queue ();
5109 /* If this compilation succeeded, don't delete those files later. */
5110 clear_failure_queue ();
5113 #ifdef LANG_SPECIFIC_DRIVER
5114 if (error_count
== 0)
5116 /* Make sure INPUT_FILE_NUMBER points to first available open
5118 input_file_number
= n_infiles
;
5119 if (lang_specific_pre_link ())
5124 /* Run ld to link all the compiler output files. */
5126 if (error_count
== 0)
5128 int tmp
= execution_count
;
5130 /* We'll use ld if we can't find collect2. */
5131 if (! strcmp (linker_name_spec
, "collect2"))
5133 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
);
5135 linker_name_spec
= "ld";
5137 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5139 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH=");
5140 putenv_from_prefixes (&startfile_prefixes
, "LIBRARY_PATH=");
5142 value
= do_spec (link_command_spec
);
5145 linker_was_run
= (tmp
!= execution_count
);
5148 /* Warn if a -B option was specified but the prefix was never used. */
5149 unused_prefix_warnings (&exec_prefixes
);
5150 unused_prefix_warnings (&startfile_prefixes
);
5152 /* If options said don't run linker,
5153 complain about input files to be given to the linker. */
5155 if (! linker_was_run
&& error_count
== 0)
5156 for (i
= 0; (int)i
< n_infiles
; i
++)
5157 if (explicit_link_files
[i
])
5158 error ("%s: linker input file unused since linking not done",
5161 /* Delete some or all of the temporary files we made. */
5164 delete_failure_queue ();
5165 delete_temp_files ();
5167 if (print_help_list
)
5169 printf ("\nReport bugs to egcs-bugs@cygnus.com.\n");
5170 printf ("Please see the file BUGS (included with the sources) first.\n");
5173 exit (error_count
> 0 ? (signal_count
? 2 : 1) : 0);
5178 /* Find the proper compilation spec for the file name NAME,
5179 whose length is LENGTH. LANGUAGE is the specified language,
5180 or 0 if this file is to be passed to the linker. */
5182 static struct compiler
*
5183 lookup_compiler (name
, length
, language
)
5188 struct compiler
*cp
;
5190 /* If this was specified by the user to be a linker input, indicate that. */
5191 if (language
!= 0 && language
[0] == '*')
5194 /* Otherwise, look for the language, if one is spec'd. */
5197 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
5198 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
5201 error ("language %s not recognized", language
);
5205 /* Look for a suffix. */
5206 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
5208 if (/* The suffix `-' matches only the file name `-'. */
5209 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
5210 || (strlen (cp
->suffix
) < length
5211 /* See if the suffix matches the end of NAME. */
5213 && ((!strcmp (cp
->suffix
,
5214 name
+ length
- strlen (cp
->suffix
))
5215 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
5216 && !strcasecmp (cp
->suffix
,
5217 name
+ length
- strlen (cp
->suffix
)))
5219 && !strcmp (cp
->suffix
,
5220 name
+ length
- strlen (cp
->suffix
))
5224 if (cp
->spec
[0][0] == '@')
5226 struct compiler
*new;
5228 /* An alias entry maps a suffix to a language.
5229 Search for the language; pass 0 for NAME and LENGTH
5230 to avoid infinite recursion if language not found.
5231 Construct the new compiler spec. */
5232 language
= cp
->spec
[0] + 1;
5233 new = (struct compiler
*) xmalloc (sizeof (struct compiler
));
5234 new->suffix
= cp
->suffix
;
5235 bcopy ((char *) lookup_compiler (NULL_PTR
, 0, language
)->spec
,
5236 (char *) new->spec
, sizeof new->spec
);
5240 /* A non-alias entry: return it. */
5252 register char *value
= (char *) malloc (size
);
5254 fatal ("virtual memory exhausted");
5259 xrealloc (ptr
, size
)
5263 register char *value
= (char *) realloc (ptr
, size
);
5265 fatal ("virtual memory exhausted");
5269 /* This function is based on the one in libiberty. */
5272 concat
VPROTO((char *first
, ...))
5274 register int length
;
5275 register char *newstr
;
5283 /* First compute the size of the result and get sufficient memory. */
5285 VA_START (args
, first
);
5287 first
= va_arg (args
, char *);
5295 length
+= strlen (arg
);
5296 arg
= va_arg (args
, char *);
5299 newstr
= (char *) xmalloc (length
+ 1);
5302 /* Now copy the individual pieces to the result string. */
5304 VA_START (args
, first
);
5306 first
= va_arg (args
, char *);
5315 arg
= va_arg (args
, char *);
5324 save_string (s
, len
)
5328 register char *result
= xmalloc (len
+ 1);
5330 bcopy (s
, result
, len
);
5336 pfatal_with_name (name
)
5339 fatal ("%s: %s", name
, my_strerror (errno
));
5343 perror_with_name (name
)
5346 error ("%s: %s", name
, my_strerror (errno
));
5350 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
5354 int save_errno
= errno
;
5358 /* Space for trailing '\0' is in %s. */
5359 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
5360 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
5364 fatal ("%s: %s", errmsg_fmt
, my_strerror (save_errno
));
5367 /* More 'friendly' abort that prints the line and file.
5368 config.h can #define abort fancy_abort if you like that sort of thing. */
5373 fatal ("Internal gcc abort.");
5376 /* Output an error message and exit */
5379 fatal
VPROTO((char *format
, ...))
5386 VA_START (ap
, format
);
5389 format
= va_arg (ap
, char *);
5392 fprintf (stderr
, "%s: ", programname
);
5393 vfprintf (stderr
, format
, ap
);
5395 fprintf (stderr
, "\n");
5396 delete_temp_files ();
5401 error
VPROTO((char *format
, ...))
5408 VA_START (ap
, format
);
5411 format
= va_arg (ap
, char *);
5414 fprintf (stderr
, "%s: ", programname
);
5415 vfprintf (stderr
, format
, ap
);
5418 fprintf (stderr
, "\n");
5422 validate_all_switches ()
5424 struct compiler
*comp
;
5427 struct spec_list
*spec
;
5429 for (comp
= compilers
; comp
->spec
[0]; comp
++)
5432 for (i
= 0; i
< sizeof comp
->spec
/ sizeof comp
->spec
[0] && comp
->spec
[i
]; i
++)
5436 if (c
== '%' && *p
== '{')
5437 /* We have a switch spec. */
5438 validate_switches (p
+ 1);
5442 /* look through the linked list of specs read from the specs file */
5443 for (spec
= specs
; spec
; spec
= spec
->next
)
5445 p
= *(spec
->ptr_spec
);
5447 if (c
== '%' && *p
== '{')
5448 /* We have a switch spec. */
5449 validate_switches (p
+ 1);
5452 p
= link_command_spec
;
5454 if (c
== '%' && *p
== '{')
5455 /* We have a switch spec. */
5456 validate_switches (p
+ 1);
5459 /* Look at the switch-name that comes after START
5460 and mark as valid all supplied switches that match it. */
5463 validate_switches (start
)
5466 register char *p
= start
;
5481 while (*p
!= ':' && *p
!= '}') p
++;
5485 else if (p
[-1] == '*')
5487 /* Mark all matching switches as valid. */
5489 for (i
= 0; i
< n_switches
; i
++)
5490 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
))
5491 switches
[i
].valid
= 1;
5495 /* Mark an exact matching switch as valid. */
5496 for (i
= 0; i
< n_switches
; i
++)
5498 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
5499 && switches
[i
].part1
[p
- filter
] == 0)
5500 switches
[i
].valid
= 1;
5505 /* Check whether a particular argument was used. The first time we
5506 canonicalize the switches to keep only the ones we care about. */
5520 static struct mswitchstr
*mswitches
;
5521 static int n_mswitches
;
5526 struct mswitchstr
*matches
;
5530 /* Break multilib_matches into the component strings of string and replacement
5532 for (q
= multilib_matches
; *q
!= '\0'; q
++)
5536 matches
= (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
5538 q
= multilib_matches
;
5549 matches
[i
].len
= q
- matches
[i
].str
;
5551 matches
[i
].replace
= ++q
;
5552 while (*q
!= ';' && *q
!= '\0')
5558 matches
[i
].rep_len
= q
- matches
[i
].replace
;
5566 /* Now build a list of the replacement string for switches that we care
5567 about. Make sure we allocate at least one entry. This prevents
5568 xmalloc from calling fatal, and prevents us from re-executing this
5571 = (struct mswitchstr
*) xmalloc ((sizeof (struct mswitchstr
))
5572 * (n_switches
? n_switches
: 1));
5573 for (i
= 0; i
< n_switches
; i
++)
5575 int xlen
= strlen (switches
[i
].part1
);
5576 for (j
= 0; j
< cnt
; j
++)
5577 if (xlen
== matches
[j
].len
&& ! strcmp (switches
[i
].part1
, matches
[j
].str
))
5579 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
5580 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
5581 mswitches
[n_mswitches
].replace
= (char *)0;
5582 mswitches
[n_mswitches
].rep_len
= 0;
5589 for (i
= 0; i
< n_mswitches
; i
++)
5590 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
5597 default_arg (p
, len
)
5603 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+1)
5605 while (*start
== ' ' || *start
== '\t')
5611 for (end
= start
+1; *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
5614 if ((end
- start
) == len
&& strncmp (p
, start
, len
) == 0)
5624 /* Work out the subdirectory to use based on the
5625 options. The format of multilib_select is a list of elements.
5626 Each element is a subdirectory name followed by a list of options
5627 followed by a semicolon. gcc will consider each line in turn. If
5628 none of the options beginning with an exclamation point are
5629 present, and all of the other options are present, that
5630 subdirectory will be used. */
5635 char *p
= multilib_select
;
5637 char *this_path
, *this_arg
;
5643 /* Ignore newlines. */
5650 /* Get the initial path. */
5658 this_path_len
= p
- this_path
;
5660 /* Check the arguments. */
5675 while (*p
!= ' ' && *p
!= ';')
5682 if (*this_arg
!= '!')
5690 /* If this is a default argument, we can just ignore it.
5691 This is true even if this_arg begins with '!'. Beginning
5692 with '!' does not mean that this argument is necessarily
5693 inappropriate for this library: it merely means that
5694 there is a more specific library which uses this
5695 argument. If this argument is a default, we need not
5696 consider that more specific library. */
5697 if (! default_arg (this_arg
, p
- this_arg
))
5699 ok
= used_arg (this_arg
, p
- this_arg
);
5710 if (this_path_len
!= 1
5711 || this_path
[0] != '.')
5713 multilib_dir
= xmalloc (this_path_len
+ 1);
5714 strncpy (multilib_dir
, this_path
, this_path_len
);
5715 multilib_dir
[this_path_len
] = '\0';
5724 /* Print out the multiple library subdirectory selection
5725 information. This prints out a series of lines. Each line looks
5726 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5727 required. Only the desired options are printed out, the negative
5728 matches. The options are print without a leading dash. There are
5729 no spaces to make it easy to use the information in the shell.
5730 Each subdirectory is printed only once. This assumes the ordering
5731 generated by the genmultilib script. */
5734 print_multilib_info ()
5736 char *p
= multilib_select
;
5737 char *last_path
= 0, *this_path
;
5739 int last_path_len
= 0;
5743 /* Ignore newlines. */
5750 /* Get the initial path. */
5759 /* If this is a duplicate, skip it. */
5760 skip
= (last_path
!= 0 && p
- this_path
== last_path_len
5761 && ! strncmp (last_path
, this_path
, last_path_len
));
5763 last_path
= this_path
;
5764 last_path_len
= p
- this_path
;
5766 /* If this directory requires any default arguments, we can skip
5767 it. We will already have printed a directory identical to
5768 this one which does not require that default argument. */
5786 while (*q
!= ' ' && *q
!= ';')
5794 && default_arg (arg
, q
- arg
))
5809 for (p1
= last_path
; p1
< p
; p1
++)
5828 use_arg
= *p
!= '!';
5833 while (*p
!= ' ' && *p
!= ';')
5848 /* If there are extra options, print them now */
5849 if (multilib_extra
&& *multilib_extra
)
5851 int print_at
= TRUE
;
5854 for (q
= multilib_extra
; *q
!= '\0'; q
++)