1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92-96, 1997 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA.
21 This paragraph is here to try to keep Sun CC from dying.
22 The number of chars here seems crucial!!!! */
24 /* This program is the user interface to the C compiler and possibly to
25 other compilers. It is used because compilation is a complicated procedure
26 which involves running several programs and passing temporary files between
27 them, forwarding the users switches to those programs selectively,
28 and deleting the temporary files at the end.
30 CC recognizes how to compile each input file by suffixes in the file names.
31 Once it knows which kind of compilation to perform, the procedure for
32 compilation is specified by a string called a "spec". */
36 #include <sys/types.h>
42 #ifdef HAVE_SYS_FILE_H
43 #include <sys/file.h> /* May get R_OK, etc. on some systems. */
47 #include "gansidecl.h"
62 /* ??? Need to find a GCC header to put these in. */
63 extern int pexecute PROTO ((const char *, char * const *, const char *,
64 const char *, char **, char **, int));
65 extern int pwait PROTO ((int, int *, int));
66 extern char *update_path PROTO((char *, char *));
67 /* Flag arguments to pexecute. */
68 #define PEXECUTE_FIRST 1
69 #define PEXECUTE_LAST 2
70 #define PEXECUTE_SEARCH 4
71 #define PEXECUTE_VERBOSE 8
74 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
77 #define WTERMSIG(S) ((S) & 0x7f)
80 #define WIFEXITED(S) (((S) & 0xff) == 0)
83 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
87 #define exit __posix_exit
90 /* Define O_RDONLY if the system hasn't defined it for us. */
99 /* Test if something is a normal file. */
101 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
104 /* Test if something is a directory. */
106 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
109 /* By default there is no special suffix for executables. */
110 #ifdef EXECUTABLE_SUFFIX
111 #define HAVE_EXECUTABLE_SUFFIX
113 #define EXECUTABLE_SUFFIX ""
116 /* By default, the suffix for object files is ".o". */
118 #define HAVE_OBJECT_SUFFIX
120 #define OBJECT_SUFFIX ".o"
123 /* By default, colon separates directories in a path. */
124 #ifndef PATH_SEPARATOR
125 #define PATH_SEPARATOR ':'
128 #ifndef DIR_SEPARATOR
129 #define DIR_SEPARATOR '/'
132 static char dir_separator_str[] = {DIR_SEPARATOR, 0};
134 #define obstack_chunk_alloc xmalloc
135 #define obstack_chunk_free free
138 extern char *getenv ();
140 extern char *choose_temp_base PROTO((void));
146 #ifndef HAVE_STRERROR
148 extern char *sys_errlist[];
150 extern char *strerror();
154 #define kill(p,s) raise(s)
157 /* If a stage of compilation returns an exit status >= 1,
158 compilation of that file ceases. */
160 #define MIN_FATAL_STATUS 1
162 /* Flag saying to print the directories gcc will search through looking for
163 programs, libraries, etc. */
165 static int print_search_dirs;
167 /* Flag saying to print the full filename of this file
168 as found through our usual search mechanism. */
170 static char *print_file_name = NULL;
172 /* As print_file_name, but search for executable file. */
174 static char *print_prog_name = NULL;
176 /* Flag saying to print the relative path we'd use to
177 find libgcc.a given the current compiler flags. */
179 static int print_multi_directory;
181 /* Flag saying to print the list of subdirectories and
182 compiler flags used to select them in a standard form. */
184 static int print_multi_lib;
186 /* Flag indicating whether we should print the command and arguments */
188 static int verbose_flag;
190 /* Nonzero means write "temp" files in source directory
191 and use the source file's name in them, and don't delete them. */
193 static int save_temps_flag;
195 /* The compiler version. */
197 static char *compiler_version;
199 /* The target version specified with -V */
201 static char *spec_version = DEFAULT_TARGET_VERSION;
203 /* The target machine specified with -b. */
205 static char *spec_machine = DEFAULT_TARGET_MACHINE;
207 /* Nonzero if cross-compiling.
208 When -b is used, the value comes from the `specs' file. */
211 static char *cross_compile = "1";
213 static char *cross_compile = "0";
216 /* The number of errors that have occurred; the link phase will not be
217 run if this is non-zero. */
218 static int error_count = 0;
220 /* This is the obstack which we use to allocate many strings. */
222 static struct obstack obstack;
224 /* This is the obstack to build an environment variable to pass to
225 collect2 that describes all of the relevant switches of what to
226 pass the compiler in building the list of pointers to constructors
229 static struct obstack collect_obstack;
231 extern char *version_string;
233 /* Forward declaration for prototypes. */
236 static void init_spec PROTO((void));
237 static void read_specs PROTO((char *, int));
238 static void set_spec PROTO((char *, char *));
239 static struct compiler *lookup_compiler PROTO((char *, int, char *));
240 static char *build_search_list PROTO((struct path_prefix *, char *, int));
241 static void putenv_from_prefixes PROTO((struct path_prefix *, char *));
242 static char *find_a_file PROTO((struct path_prefix *, char *, int));
243 static void add_prefix PROTO((struct path_prefix *, char *, char *,
245 static char *skip_whitespace PROTO((char *));
246 static void record_temp_file PROTO((char *, int, int));
247 static void delete_if_ordinary PROTO((char *));
248 static void delete_temp_files PROTO((void));
249 static void delete_failure_queue PROTO((void));
250 static void clear_failure_queue PROTO((void));
251 static int check_live_switch PROTO((int, int));
252 static char *handle_braces PROTO((char *));
253 static char *save_string PROTO((char *, int));
254 static char *concat PVPROTO((char *, ...));
255 static int do_spec PROTO((char *));
256 static int do_spec_1 PROTO((char *, int, char *));
257 static char *find_file PROTO((char *));
258 static int is_directory PROTO((char *, char *, int));
259 static void validate_switches PROTO((char *));
260 static void validate_all_switches PROTO((void));
261 static void give_switch PROTO((int, int, int));
262 static int used_arg PROTO((char *, int));
263 static int default_arg PROTO((char *, int));
264 static void set_multilib_dir PROTO((void));
265 static void print_multilib_info PROTO((void));
266 static void pfatal_with_name PROTO((char *));
267 static void perror_with_name PROTO((char *));
268 static void pfatal_pexecute PROTO((char *, char *));
270 static void fatal PVPROTO((char *, ...));
271 static void error PVPROTO((char *, ...));
273 /* We must not provide any prototype here, even if ANSI C. */
274 static void fatal PROTO(());
275 static void error PROTO(());
282 /* Specs are strings containing lines, each of which (if not blank)
283 is made up of a program name, and arguments separated by spaces.
284 The program name must be exact and start from root, since no path
285 is searched and it is unreliable to depend on the current working directory.
286 Redirection of input or output is not supported; the subprograms must
287 accept filenames saying what files to read and write.
289 In addition, the specs can contain %-sequences to substitute variable text
290 or for conditional text. Here is a table of all defined %-sequences.
291 Note that spaces are not generated automatically around the results of
292 expanding these sequences; therefore, you can concatenate them together
293 or with constant text in a single argument.
295 %% substitute one % into the program name or argument.
296 %i substitute the name of the input file being processed.
297 %b substitute the basename of the input file being processed.
298 This is the substring up to (and not including) the last period
299 and not including the directory.
300 %g substitute the temporary-file-name-base. This is a string chosen
301 once per compilation. Different temporary file names are made by
302 concatenation of constant strings on the end, as in `%g.s'.
303 %g also has the same effect of %d.
304 %u like %g, but make the temporary file name unique.
305 %U returns the last file name generated with %u.
306 %d marks the argument containing or following the %d as a
307 temporary file name, so that that file will be deleted if CC exits
308 successfully. Unlike %g, this contributes no text to the argument.
309 %w marks the argument containing or following the %w as the
310 "output file" of this compilation. This puts the argument
311 into the sequence of arguments that %o will substitute later.
313 like %{...} but mark last argument supplied within
314 as a file to be deleted on failure.
315 %o substitutes the names of all the output files, with spaces
316 automatically placed around them. You should write spaces
317 around the %o as well or the results are undefined.
318 %o is for use in the specs for running the linker.
319 Input files whose names have no recognized suffix are not compiled
320 at all, but they are included among the output files, so they will
322 %O substitutes the suffix for object files.
323 %p substitutes the standard macro predefinitions for the
324 current target machine. Use this when running cpp.
325 %P like %p, but puts `__' before and after the name of each macro.
326 (Except macros that already have __.)
328 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
329 %s current argument is the name of a library or startup file of some sort.
330 Search for that file in a standard list of directories
331 and substitute the full name found.
332 %eSTR Print STR as an error message. STR is terminated by a newline.
333 Use this when inconsistent options are detected.
334 %x{OPTION} Accumulate an option for %X.
335 %X Output the accumulated linker options specified by compilations.
336 %Y Output the accumulated assembler options specified by compilations.
337 %Z Output the accumulated preprocessor options specified by compilations.
338 %v1 Substitute the major version number of GCC.
339 (For version 2.5.n, this is 2.)
340 %v2 Substitute the minor version number of GCC.
341 (For version 2.5.n, this is 5.)
342 %a process ASM_SPEC as a spec.
343 This allows config.h to specify part of the spec for running as.
344 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
345 used here. This can be used to run a post-processor after the
346 assembler has done it's job.
347 %D Dump out a -L option for each directory in startfile_prefixes.
348 If multilib_dir is set, extra entries are generated with it affixed.
349 %l process LINK_SPEC as a spec.
350 %L process LIB_SPEC as a spec.
351 %G process LIBGCC_SPEC as a spec.
352 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
353 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
354 %c process SIGNED_CHAR_SPEC as a spec.
355 %C process CPP_SPEC as a spec. A capital C is actually used here.
356 %1 process CC1_SPEC as a spec.
357 %2 process CC1PLUS_SPEC as a spec.
358 %| output "-" if the input for the current command is coming from a pipe.
359 %* substitute the variable part of a matched option. (See below.)
360 Note that each comma in the substituted string is replaced by
362 %{S} substitutes the -S switch, if that switch was given to CC.
363 If that switch was not specified, this substitutes nothing.
364 Here S is a metasyntactic variable.
365 %{S*} substitutes all the switches specified to CC whose names start
366 with -S. This is used for -o, -D, -I, etc; switches that take
367 arguments. CC considers `-o foo' as being one switch whose
368 name starts with `o'. %{o*} would substitute this text,
369 including the space; thus, two arguments would be generated.
370 %{^S*} likewise, but don't put a blank between a switch and any args.
371 %{S*:X} substitutes X if one or more switches whose names start with -S are
372 specified to CC. Note that the tail part of the -S option
373 (i.e. the part matched by the `*') will be substituted for each
374 occurrence of %* within X.
375 %{S:X} substitutes X, but only if the -S switch was given to CC.
376 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
377 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
378 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
379 %{.S:X} substitutes X, but only if processing a file with suffix S.
380 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
381 %(Spec) processes a specification defined in a specs file as *Spec:
382 %[Spec] as above, but put __ around -D arguments
384 The conditional text X in a %{S:X} or %{!S:X} construct may contain
385 other nested % constructs or spaces, or even newlines. They are
386 processed as usual, as described above.
388 The -O, -f, -m, and -W switches are handled specifically in these
389 constructs. If another value of -O or the negated form of a -f, -m, or
390 -W switch is found later in the command line, the earlier switch
391 value is ignored, except with {S*} where S is just one letter; this
392 passes all matching options.
394 The character | is used to indicate that a command should be piped to
395 the following command, but only if -pipe is specified.
397 Note that it is built into CC which switches take arguments and which
398 do not. You might think it would be useful to generalize this to
399 allow each compiler's spec to say which switches take arguments. But
400 this cannot be done in a consistent fashion. CC cannot even decide
401 which input files have been specified without knowing which switches
402 take arguments, and it must know which input files to compile in order
403 to tell which compilers to run.
405 CC also knows implicitly that arguments starting in `-l' are to be
406 treated as compiler output files, and passed to the linker in their
407 proper position among the other output files. */
409 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
411 /* config.h can define ASM_SPEC to provide extra args to the assembler
412 or extra switch-translations. */
417 /* config.h can define ASM_FINAL_SPEC to run a post processor after
418 the assembler has run. */
419 #ifndef ASM_FINAL_SPEC
420 #define ASM_FINAL_SPEC ""
423 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
424 or extra switch-translations. */
429 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
430 or extra switch-translations. */
435 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
436 or extra switch-translations. */
438 #define CC1PLUS_SPEC ""
441 /* config.h can define LINK_SPEC to provide extra args to the linker
442 or extra switch-translations. */
447 /* config.h can define LIB_SPEC to override the default libraries. */
449 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
452 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
455 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
456 /* Have gcc do the search for libgcc.a. */
457 #define LIBGCC_SPEC "libgcc.a%s"
459 #define LIBGCC_SPEC "-lgcc"
463 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
464 #ifndef STARTFILE_SPEC
465 #define STARTFILE_SPEC \
466 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
469 /* config.h can define SWITCHES_NEED_SPACES to control which options
470 require spaces between the option and the argument. */
471 #ifndef SWITCHES_NEED_SPACES
472 #define SWITCHES_NEED_SPACES ""
475 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
477 #define ENDFILE_SPEC ""
480 /* This spec is used for telling cpp whether char is signed or not. */
481 #ifndef SIGNED_CHAR_SPEC
482 /* Use #if rather than ?:
483 because MIPS C compiler rejects like ?: in initializers. */
484 #if DEFAULT_SIGNED_CHAR
485 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
487 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
491 static char *cpp_spec = CPP_SPEC;
492 static char *cpp_predefines = CPP_PREDEFINES;
493 static char *cc1_spec = CC1_SPEC;
494 static char *cc1plus_spec = CC1PLUS_SPEC;
495 static char *signed_char_spec = SIGNED_CHAR_SPEC;
496 static char *asm_spec = ASM_SPEC;
497 static char *asm_final_spec = ASM_FINAL_SPEC;
498 static char *link_spec = LINK_SPEC;
499 static char *lib_spec = LIB_SPEC;
500 static char *libgcc_spec = LIBGCC_SPEC;
501 static char *endfile_spec = ENDFILE_SPEC;
502 static char *startfile_spec = STARTFILE_SPEC;
503 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
505 /* Some compilers have limits on line lengths, and the multilib_select
506 and/or multilib_matches strings can be very long, so we build them at
508 static struct obstack multilib_obstack;
509 static char *multilib_select;
510 static char *multilib_matches;
511 static char *multilib_defaults;
512 #include "multilib.h"
514 /* Check whether a particular argument is a default argument. */
516 #ifndef MULTILIB_DEFAULTS
517 #define MULTILIB_DEFAULTS { "" }
520 static char *multilib_defaults_raw[] = MULTILIB_DEFAULTS;
523 struct user_specs *next;
527 static struct user_specs *user_specs_head, *user_specs_tail;
529 /* This defines which switch letters take arguments. */
531 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
532 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
533 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
534 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
535 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
536 || (CHAR) == 'B' || (CHAR) == 'b')
538 #ifndef SWITCH_TAKES_ARG
539 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
542 /* This defines which multi-letter switches take arguments. */
544 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
545 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
546 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
547 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
548 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
549 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
550 || !strcmp (STR, "isystem") || !strcmp (STR, "specs"))
552 #ifndef WORD_SWITCH_TAKES_ARG
553 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
556 /* Record the mapping from file suffixes for compilation specs. */
560 char *suffix; /* Use this compiler for input files
561 whose names end in this suffix. */
563 char *spec[4]; /* To use this compiler, concatenate these
564 specs and pass to do_spec. */
567 /* Pointer to a vector of `struct compiler' that gives the spec for
568 compiling a file, based on its suffix.
569 A file that does not end in any of these suffixes will be passed
570 unchanged to the loader and nothing else will be done to it.
572 An entry containing two 0s is used to terminate the vector.
574 If multiple entries match a file, the last matching one is used. */
576 static struct compiler *compilers;
578 /* Number of entries in `compilers', not counting the null terminator. */
580 static int n_compilers;
582 /* The default list of file name suffixes and their compilation specs. */
584 static struct compiler default_compilers[] =
586 /* Add lists of suffixes of known languages here. If those languages
587 were not present when we built the driver, we will hit these copies
588 and be given a more meaningful error than "file not used since
589 linking is not done". */
590 {".cc", "#C++"}, {".cxx", "#C++"}, {".cpp", "#C++"}, {".c++", "#C++"},
591 {".C", "#C++"}, {".ads", "#Ada"}, {".adb", "#Ada"}, {".ada", "#Ada"},
592 {".f", "#Fortran"}, {".for", "#Fortran"}, {".F", "#Fortran"},
593 {".fpp", "#Fortran"},
594 {".p", "#Pascal"}, {".pas", "#Pascal"},
595 /* Next come the entries for C. */
598 "cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
599 %{C:%{!E:%eGNU C does not support -C without using -E}}\
600 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
601 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
602 %{ansi:-trigraphs -D__STRICT_ANSI__}\
603 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
604 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
605 %{traditional-cpp:-traditional}\
606 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
607 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
608 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
609 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
610 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
611 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
613 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
614 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
616 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
617 %{!pipe:%g.s} %A\n }}}}"},
619 "%{E:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
620 %{C:%{!E:%eGNU C does not support -C without using -E}}\
621 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
622 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
623 %{ansi:-trigraphs -D__STRICT_ANSI__}\
624 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
625 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
626 %{traditional-cpp:-traditional}\
627 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
629 %{!E:%e-E required when input is from standard input}"},
630 {".m", "@objective-c"},
632 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
633 %{C:%{!E:%eGNU C does not support -C without using -E}}\
634 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
635 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
636 %{ansi:-trigraphs -D__STRICT_ANSI__}\
637 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
638 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
639 %{traditional-cpp:-traditional}\
640 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
641 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
642 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
643 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a*}\
644 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
645 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
646 -lang-objc %{gen-decls} \
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 }}}}"},
655 "%{!E:%eCompilation of header file requested} \
656 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
657 %{C:%{!E:%eGNU C does not support -C without using -E}}\
658 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
659 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
660 %{ansi:-trigraphs -D__STRICT_ANSI__}\
661 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
662 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
663 %{traditional-cpp:-traditional}\
664 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
666 {".i", "@cpp-output"},
668 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
669 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
670 %{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 }}}}"},
677 {".s", "@assembler"},
679 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
680 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
682 {".S", "@assembler-with-cpp"},
683 {"@assembler-with-cpp",
684 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
685 %{C:%{!E:%eGNU C does not support -C without using -E}}\
686 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
687 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
688 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
689 %{traditional-cpp:-traditional}\
690 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
691 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
692 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
693 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
694 %{!pipe:%g.s} %A\n }}}}"},
696 /* Mark end of table */
700 /* Number of elements in default_compilers, not counting the terminator. */
702 static int n_default_compilers
703 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
705 /* Here is the spec for running the linker, after compiling all files. */
707 /* -u* was put back because both BSD and SysV seem to support it. */
708 /* %{static:} simply prevents an error message if the target machine
709 doesn't handle -static. */
710 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
711 scripts which exist in user specified directories, or in standard
713 #ifdef LINK_LIBGCC_SPECIAL
714 /* Don't generate -L options. */
715 static char *link_command_spec = "\
717 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
718 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
719 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
721 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
722 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
727 static char *link_command_spec = "\
729 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
730 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
731 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
732 %{static:} %{L*} %D %o\
733 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
734 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
739 /* A vector of options to give to the linker.
740 These options are accumulated by %x,
741 and substituted into the linker command with %X. */
742 static int n_linker_options;
743 static char **linker_options;
745 /* A vector of options to give to the assembler.
746 These options are accumulated by -Wa,
747 and substituted into the assembler command with %Y. */
748 static int n_assembler_options;
749 static char **assembler_options;
751 /* A vector of options to give to the preprocessor.
752 These options are accumulated by -Wp,
753 and substituted into the preprocessor command with %Z. */
754 static int n_preprocessor_options;
755 static char **preprocessor_options;
757 /* Define how to map long options into short ones. */
759 /* This structure describes one mapping. */
762 /* The long option's name. */
764 /* The equivalent short option. */
766 /* Argument info. A string of flag chars; NULL equals no options.
767 a => argument required.
768 o => argument optional.
769 j => join argument to equivalent, making one word.
770 * => require other text after NAME as an argument. */
774 /* This is the table of mappings. Mappings are tried sequentially
775 for each option encountered; the first one that matches, wins. */
777 struct option_map option_map[] =
779 {"--all-warnings", "-Wall", 0},
780 {"--ansi", "-ansi", 0},
781 {"--assemble", "-S", 0},
782 {"--assert", "-A", "a"},
783 {"--comments", "-C", 0},
784 {"--compile", "-c", 0},
785 {"--debug", "-g", "oj"},
786 {"--define-macro", "-D", "aj"},
787 {"--dependencies", "-M", 0},
788 {"--dump", "-d", "a"},
789 {"--dumpbase", "-dumpbase", "a"},
790 {"--entry", "-e", 0},
791 {"--extra-warnings", "-W", 0},
792 {"--for-assembler", "-Wa", "a"},
793 {"--for-linker", "-Xlinker", "a"},
794 {"--force-link", "-u", "a"},
795 {"--imacros", "-imacros", "a"},
796 {"--include", "-include", "a"},
797 {"--include-barrier", "-I-", 0},
798 {"--include-directory", "-I", "aj"},
799 {"--include-directory-after", "-idirafter", "a"},
800 {"--include-prefix", "-iprefix", "a"},
801 {"--include-with-prefix", "-iwithprefix", "a"},
802 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
803 {"--include-with-prefix-after", "-iwithprefix", "a"},
804 {"--language", "-x", "a"},
805 {"--library-directory", "-L", "a"},
806 {"--machine", "-m", "aj"},
807 {"--machine-", "-m", "*j"},
808 {"--no-line-commands", "-P", 0},
809 {"--no-precompiled-includes", "-noprecomp", 0},
810 {"--no-standard-includes", "-nostdinc", 0},
811 {"--no-standard-libraries", "-nostdlib", 0},
812 {"--no-warnings", "-w", 0},
813 {"--optimize", "-O", "oj"},
814 {"--output", "-o", "a"},
815 {"--pedantic", "-pedantic", 0},
816 {"--pedantic-errors", "-pedantic-errors", 0},
817 {"--pipe", "-pipe", 0},
818 {"--prefix", "-B", "a"},
819 {"--preprocess", "-E", 0},
820 {"--print-search-dirs", "-print-search-dirs", 0},
821 {"--print-file-name", "-print-file-name=", "aj"},
822 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
823 {"--print-missing-file-dependencies", "-MG", 0},
824 {"--print-multi-lib", "-print-multi-lib", 0},
825 {"--print-multi-directory", "-print-multi-directory", 0},
826 {"--print-prog-name", "-print-prog-name=", "aj"},
827 {"--profile", "-p", 0},
828 {"--profile-blocks", "-a", 0},
829 {"--quiet", "-q", 0},
830 {"--save-temps", "-save-temps", 0},
831 {"--shared", "-shared", 0},
832 {"--silent", "-q", 0},
833 {"--specs", "-specs=", "aj"},
834 {"--static", "-static", 0},
835 {"--symbolic", "-symbolic", 0},
836 {"--target", "-b", "a"},
837 {"--trace-includes", "-H", 0},
838 {"--traditional", "-traditional", 0},
839 {"--traditional-cpp", "-traditional-cpp", 0},
840 {"--trigraphs", "-trigraphs", 0},
841 {"--undefine-macro", "-U", "aj"},
842 {"--use-version", "-V", "a"},
843 {"--user-dependencies", "-MM", 0},
844 {"--verbose", "-v", 0},
845 {"--version", "-dumpversion", 0},
846 {"--warn-", "-W", "*j"},
847 {"--write-dependencies", "-MD", 0},
848 {"--write-user-dependencies", "-MMD", 0},
852 /* Translate the options described by *ARGCP and *ARGVP.
853 Make a new vector and store it back in *ARGVP,
854 and store its length in *ARGVC. */
857 translate_options (argcp, argvp)
863 char **argv = *argvp;
864 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
868 newv[newindex++] = argv[i++];
872 /* Translate -- options. */
873 if (argv[i][0] == '-' && argv[i][1] == '-')
875 /* Find a mapping that applies to this option. */
876 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
878 int optlen = strlen (option_map[j].name);
879 int arglen = strlen (argv[i]);
880 int complen = arglen > optlen ? optlen : arglen;
881 char *arginfo = option_map[j].arg_info;
886 if (!strncmp (argv[i], option_map[j].name, complen))
893 k < sizeof (option_map) / sizeof (option_map[0]);
895 if (strlen (option_map[k].name) >= arglen
896 && !strncmp (argv[i], option_map[k].name, arglen))
898 error ("Ambiguous abbreviation %s", argv[i]);
902 if (k != sizeof (option_map) / sizeof (option_map[0]))
908 /* If the option has an argument, accept that. */
909 if (argv[i][optlen] == '=')
910 arg = argv[i] + optlen + 1;
912 /* If this mapping requires extra text at end of name,
913 accept that as "argument". */
914 else if (index (arginfo, '*') != 0)
915 arg = argv[i] + optlen;
917 /* Otherwise, extra text at end means mismatch.
918 Try other mappings. */
923 else if (index (arginfo, '*') != 0)
925 error ("Incomplete `%s' option", option_map[j].name);
929 /* Handle arguments. */
930 if (index (arginfo, 'a') != 0)
936 error ("Missing argument to `%s' option",
944 else if (index (arginfo, '*') != 0)
946 else if (index (arginfo, 'o') == 0)
949 error ("Extraneous argument to `%s' option",
954 /* Store the translation as one argv elt or as two. */
955 if (arg != 0 && index (arginfo, 'j') != 0)
956 newv[newindex++] = concat (option_map[j].equivalent, arg,
960 newv[newindex++] = option_map[j].equivalent;
961 newv[newindex++] = arg;
964 newv[newindex++] = option_map[j].equivalent;
972 /* Handle old-fashioned options--just copy them through,
973 with their arguments. */
974 else if (argv[i][0] == '-')
976 char *p = argv[i] + 1;
980 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
981 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
982 else if (WORD_SWITCH_TAKES_ARG (p))
983 nskip += WORD_SWITCH_TAKES_ARG (p);
984 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
987 else if (! strcmp (p, "Xlinker"))
990 /* Watch out for an option at the end of the command line that
991 is missing arguments, and avoid skipping past the end of the
993 if (nskip + i > argc)
998 newv[newindex++] = argv[i++];
1003 /* Ordinary operands, or +e options. */
1004 newv[newindex++] = argv[i++];
1017 #ifdef HAVE_STRERROR
1023 static char buffer[30];
1025 return "cannot access";
1027 if (e > 0 && e < sys_nerr)
1028 return sys_errlist[e];
1030 sprintf (buffer, "Unknown error %d", e);
1041 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1042 be considered whitespace. */
1043 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1045 else if (*p == '\n' || *p == ' ' || *p == '\t')
1049 while (*p != '\n') p++;
1059 /* Structure to keep track of the specs that have been defined so far.
1060 These are accessed using %(specname) or %[specname] in a compiler
1065 /* The following 2 fields must be first */
1066 /* to allow EXTRA_SPECS to be initialized */
1067 char *name; /* name of the spec. */
1068 char *ptr; /* available ptr if no static pointer */
1070 /* The following fields are not initialized */
1071 /* by EXTRA_SPECS */
1072 char **ptr_spec; /* pointer to the spec itself. */
1073 struct spec_list *next; /* Next spec in linked list. */
1074 int name_len; /* length of the name */
1075 int alloc_p; /* whether string was allocated */
1078 #define INIT_STATIC_SPEC(NAME,PTR) \
1079 { NAME, NULL_PTR, PTR, (struct spec_list *)0, sizeof (NAME)-1, 0 }
1081 /* List of statically defined specs */
1082 static struct spec_list static_specs[] = {
1083 INIT_STATIC_SPEC ("asm", &asm_spec),
1084 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1085 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1086 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1087 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1088 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1089 INIT_STATIC_SPEC ("link", &link_spec),
1090 INIT_STATIC_SPEC ("lib", &lib_spec),
1091 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1092 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1093 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1094 INIT_STATIC_SPEC ("signed_char", &signed_char_spec),
1095 INIT_STATIC_SPEC ("predefines", &cpp_predefines),
1096 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1097 INIT_STATIC_SPEC ("version", &compiler_version),
1098 INIT_STATIC_SPEC ("multilib", &multilib_select),
1099 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1100 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1101 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1104 #ifdef EXTRA_SPECS /* additional specs needed */
1105 static struct spec_list extra_specs[] = { EXTRA_SPECS };
1108 /* List of dynamically allocates specs that have been defined so far. */
1110 static struct spec_list *specs = (struct spec_list *)0;
1113 /* Initialize the specs lookup routines. */
1118 struct spec_list *next = (struct spec_list *)0;
1119 struct spec_list *sl = (struct spec_list *)0;
1123 return; /* already initialized */
1126 fprintf (stderr, "Using builtin specs.\n");
1129 for (i = (sizeof (extra_specs) / sizeof (extra_specs[0])) - 1; i >= 0; i--)
1131 sl = &extra_specs[i];
1133 sl->name_len = strlen (sl->name);
1134 sl->ptr_spec = &sl->ptr;
1139 for (i = (sizeof (static_specs) / sizeof (static_specs[0])) - 1; i >= 0; i--)
1141 sl = &static_specs[i];
1150 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1151 removed; If the spec starts with a + then SPEC is added to the end of the
1155 set_spec (name, spec)
1159 struct spec_list *sl;
1161 int name_len = strlen (name);
1164 /* If this is the first call, initialize the statically allocated specs */
1167 struct spec_list *next = (struct spec_list *)0;
1168 for (i = (sizeof (static_specs) / sizeof (static_specs[0])) - 1;
1171 sl = &static_specs[i];
1178 /* See if the spec already exists */
1179 for (sl = specs; sl; sl = sl->next)
1180 if (name_len == sl->name_len && !strcmp (sl->name, name))
1185 /* Not found - make it */
1186 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1187 sl->name = save_string (name, strlen (name));
1188 sl->name_len = name_len;
1189 sl->ptr_spec = &sl->ptr;
1191 *(sl->ptr_spec) = "";
1196 old_spec = *(sl->ptr_spec);
1197 *(sl->ptr_spec) = ((spec[0] == '+' && isspace (spec[1]))
1198 ? concat (old_spec, spec + 1, NULL_PTR)
1199 : save_string (spec, strlen (spec)));
1203 fprintf (stderr, "Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1206 /* Free the old spec */
1207 if (old_spec && sl->alloc_p)
1213 /* Accumulate a command (program name and args), and run it. */
1215 /* Vector of pointers to arguments in the current line of specifications. */
1217 static char **argbuf;
1219 /* Number of elements allocated in argbuf. */
1221 static int argbuf_length;
1223 /* Number of elements in argbuf currently in use (containing args). */
1225 static int argbuf_index;
1227 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1228 temp file. Used only if MKTEMP_EACH_FILE. */
1230 static struct temp_name {
1231 char *suffix; /* suffix associated with the code. */
1232 int length; /* strlen (suffix). */
1233 int unique; /* Indicates whether %g or %u/%U was used. */
1234 char *filename; /* associated filename. */
1235 int filename_length; /* strlen (filename). */
1236 struct temp_name *next;
1239 /* Number of commands executed so far. */
1241 static int execution_count;
1243 /* Number of commands that exited with a signal. */
1245 static int signal_count;
1247 /* Name with which this program was invoked. */
1249 static char *programname;
1251 /* Structures to keep track of prefixes to try when looking for files. */
1255 char *prefix; /* String to prepend to the path. */
1256 struct prefix_list *next; /* Next in linked list. */
1257 int require_machine_suffix; /* Don't use without machine_suffix. */
1258 /* 2 means try both machine_suffix and just_machine_suffix. */
1259 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1264 struct prefix_list *plist; /* List of prefixes to try */
1265 int max_len; /* Max length of a prefix in PLIST */
1266 char *name; /* Name of this list (used in config stuff) */
1269 /* List of prefixes to try when looking for executables. */
1271 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1273 /* List of prefixes to try when looking for startup (crt0) files. */
1275 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1277 /* List of prefixes to try when looking for include files. */
1279 static struct path_prefix include_prefixes = { 0, 0, "include" };
1281 /* Suffix to attach to directories searched for commands.
1282 This looks like `MACHINE/VERSION/'. */
1284 static char *machine_suffix = 0;
1286 /* Suffix to attach to directories searched for commands.
1287 This is just `MACHINE/'. */
1289 static char *just_machine_suffix = 0;
1291 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1293 static char *gcc_exec_prefix;
1295 /* Default prefixes to attach to command names. */
1297 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1298 #undef MD_EXEC_PREFIX
1299 #undef MD_STARTFILE_PREFIX
1300 #undef MD_STARTFILE_PREFIX_1
1303 #ifndef STANDARD_EXEC_PREFIX
1304 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1305 #endif /* !defined STANDARD_EXEC_PREFIX */
1307 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1308 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1309 #ifdef MD_EXEC_PREFIX
1310 static char *md_exec_prefix = MD_EXEC_PREFIX;
1313 #ifndef STANDARD_STARTFILE_PREFIX
1314 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1315 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1317 #ifdef MD_STARTFILE_PREFIX
1318 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1320 #ifdef MD_STARTFILE_PREFIX_1
1321 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1323 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1324 static char *standard_startfile_prefix_1 = "/lib/";
1325 static char *standard_startfile_prefix_2 = "/usr/lib/";
1327 #ifndef TOOLDIR_BASE_PREFIX
1328 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1330 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1331 static char *tooldir_prefix;
1333 /* Subdirectory to use for locating libraries. Set by
1334 set_multilib_dir based on the compilation options. */
1336 static char *multilib_dir;
1338 /* Clear out the vector of arguments (after a command is executed). */
1346 /* Add one argument to the vector at the end.
1347 This is done when a space is seen or at the end of the line.
1348 If DELETE_ALWAYS is nonzero, the arg is a filename
1349 and the file should be deleted eventually.
1350 If DELETE_FAILURE is nonzero, the arg is a filename
1351 and the file should be deleted if this compilation fails. */
1354 store_arg (arg, delete_always, delete_failure)
1356 int delete_always, delete_failure;
1358 if (argbuf_index + 1 == argbuf_length)
1360 = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1362 argbuf[argbuf_index++] = arg;
1363 argbuf[argbuf_index] = 0;
1365 if (delete_always || delete_failure)
1366 record_temp_file (arg, delete_always, delete_failure);
1369 /* Read compilation specs from a file named FILENAME,
1370 replacing the default ones.
1372 A suffix which starts with `*' is a definition for
1373 one of the machine-specific sub-specs. The "suffix" should be
1374 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1375 The corresponding spec is stored in asm_spec, etc.,
1376 rather than in the `compilers' vector.
1378 Anything invalid in the file is a fatal error. */
1381 read_specs (filename, main_p)
1387 struct stat statbuf;
1392 fprintf (stderr, "Reading specs from %s\n", filename);
1394 /* Open and stat the file. */
1395 desc = open (filename, O_RDONLY, 0);
1397 pfatal_with_name (filename);
1398 if (stat (filename, &statbuf) < 0)
1399 pfatal_with_name (filename);
1401 /* Read contents of file into BUFFER. */
1402 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1403 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1405 pfatal_with_name (filename);
1406 buffer[readlen] = 0;
1409 /* Scan BUFFER for specs, putting them in the vector. */
1415 char *in, *out, *p1, *p2, *p3;
1417 /* Advance P in BUFFER to the next nonblank nocomment line. */
1418 p = skip_whitespace (p);
1422 /* Is this a special command that starts with '%'? */
1423 /* Don't allow this for the main specs file, since it would
1424 encourage people to overwrite it. */
1425 if (*p == '%' && !main_p)
1428 while (*p && *p != '\n')
1431 p++; /* Skip '\n' */
1433 if (!strncmp (p1, "%include", sizeof ("%include")-1)
1434 && (p1[sizeof "%include" - 1] == ' '
1435 || p1[sizeof "%include" - 1] == '\t'))
1439 p1 += sizeof ("%include");
1440 while (*p1 == ' ' || *p1 == '\t')
1443 if (*p1++ != '<' || p[-2] != '>')
1444 fatal ("specs %%include syntax malformed after %d characters",
1448 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1449 read_specs (new_filename ? new_filename : p1, FALSE);
1452 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
1453 && (p1[sizeof "%include_noerr" - 1] == ' '
1454 || p1[sizeof "%include_noerr" - 1] == '\t'))
1458 p1 += sizeof "%include_noerr";
1459 while (*p1 == ' ' || *p1 == '\t') p1++;
1461 if (*p1++ != '<' || p[-2] != '>')
1462 fatal ("specs %%include syntax malformed after %d characters",
1466 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1468 read_specs (new_filename, FALSE);
1469 else if (verbose_flag)
1470 fprintf (stderr, "Could not find specs file %s\n", p1);
1473 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
1474 && (p1[sizeof "%rename" - 1] == ' '
1475 || p1[sizeof "%rename" - 1] == '\t'))
1478 struct spec_list *sl;
1480 /* Get original name */
1481 p1 += sizeof "%rename";
1482 while (*p1 == ' ' || *p1 == '\t')
1485 if (! isalpha (*p1))
1486 fatal ("specs %%rename syntax malformed after %d characters",
1490 while (*p2 && !isspace (*p2))
1493 if (*p2 != ' ' && *p2 != '\t')
1494 fatal ("specs %%rename syntax malformed after %d characters",
1499 while (*p2 == ' ' || *p2 == '\t')
1502 if (! isalpha (*p2))
1503 fatal ("specs %%rename syntax malformed after %d characters",
1506 /* Get new spec name */
1508 while (*p3 && !isspace (*p3))
1512 fatal ("specs %%rename syntax malformed after %d characters",
1516 for (sl = specs; sl; sl = sl->next)
1517 if (name_len == sl->name_len && !strcmp (sl->name, p1))
1521 fatal ("specs %s spec was not found to be renamed", p1);
1523 if (strcmp (p1, p2) == 0)
1528 fprintf (stderr, "rename spec %s to %s\n", p1, p2);
1530 fprintf (stderr, "spec is '%s'\n\n", *(sl->ptr_spec));
1534 set_spec (p2, *(sl->ptr_spec));
1536 free (*(sl->ptr_spec));
1538 *(sl->ptr_spec) = "";
1543 fatal ("specs unknown %% command after %d characters",
1547 /* Find the colon that should end the suffix. */
1549 while (*p1 && *p1 != ':' && *p1 != '\n')
1552 /* The colon shouldn't be missing. */
1554 fatal ("specs file malformed after %d characters", p1 - buffer);
1556 /* Skip back over trailing whitespace. */
1558 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
1561 /* Copy the suffix to a string. */
1562 suffix = save_string (p, p2 - p);
1563 /* Find the next line. */
1564 p = skip_whitespace (p1 + 1);
1566 fatal ("specs file malformed after %d characters", p - buffer);
1569 /* Find next blank line. */
1570 while (*p1 && !(*p1 == '\n' && p1[1] == '\n'))
1573 /* Specs end at the blank line and do not include the newline. */
1574 spec = save_string (p, p1 - p);
1577 /* Delete backslash-newline sequences from the spec. */
1582 if (in[0] == '\\' && in[1] == '\n')
1584 else if (in[0] == '#')
1585 while (*in && *in != '\n')
1593 if (suffix[0] == '*')
1595 if (! strcmp (suffix, "*link_command"))
1596 link_command_spec = spec;
1598 set_spec (suffix + 1, spec);
1602 /* Add this pair to the vector. */
1604 = ((struct compiler *)
1605 xrealloc (compilers,
1606 (n_compilers + 2) * sizeof (struct compiler)));
1608 compilers[n_compilers].suffix = suffix;
1609 bzero ((char *) compilers[n_compilers].spec,
1610 sizeof compilers[n_compilers].spec);
1611 compilers[n_compilers].spec[0] = spec;
1613 bzero ((char *) &compilers[n_compilers],
1614 sizeof compilers[n_compilers]);
1618 link_command_spec = spec;
1621 if (link_command_spec == 0)
1622 fatal ("spec file has no spec for linking");
1625 /* Record the names of temporary files we tell compilers to write,
1626 and delete them at the end of the run. */
1628 /* This is the common prefix we use to make temp file names.
1629 It is chosen once for each run of this program.
1630 It is substituted into a spec by %g.
1631 Thus, all temp file names contain this prefix.
1632 In practice, all temp file names start with this prefix.
1634 This prefix comes from the envvar TMPDIR if it is defined;
1635 otherwise, from the P_tmpdir macro if that is defined;
1636 otherwise, in /usr/tmp or /tmp;
1637 or finally the current directory if all else fails. */
1639 static char *temp_filename;
1641 /* Length of the prefix. */
1643 static int temp_filename_length;
1645 /* Define the list of temporary files to delete. */
1650 struct temp_file *next;
1653 /* Queue of files to delete on success or failure of compilation. */
1654 static struct temp_file *always_delete_queue;
1655 /* Queue of files to delete on failure of compilation. */
1656 static struct temp_file *failure_delete_queue;
1658 /* Record FILENAME as a file to be deleted automatically.
1659 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1660 otherwise delete it in any case.
1661 FAIL_DELETE nonzero means delete it if a compilation step fails;
1662 otherwise delete it in any case. */
1665 record_temp_file (filename, always_delete, fail_delete)
1670 register char *name;
1671 name = xmalloc (strlen (filename) + 1);
1672 strcpy (name, filename);
1676 register struct temp_file *temp;
1677 for (temp = always_delete_queue; temp; temp = temp->next)
1678 if (! strcmp (name, temp->name))
1681 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1682 temp->next = always_delete_queue;
1684 always_delete_queue = temp;
1691 register struct temp_file *temp;
1692 for (temp = failure_delete_queue; temp; temp = temp->next)
1693 if (! strcmp (name, temp->name))
1696 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1697 temp->next = failure_delete_queue;
1699 failure_delete_queue = temp;
1705 /* Delete all the temporary files whose names we previously recorded. */
1708 delete_if_ordinary (name)
1715 printf ("Delete %s? (y or n) ", name);
1719 while ((c = getchar ()) != '\n' && c != EOF)
1722 if (i == 'y' || i == 'Y')
1724 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1725 if (unlink (name) < 0)
1727 perror_with_name (name);
1731 delete_temp_files ()
1733 register struct temp_file *temp;
1735 for (temp = always_delete_queue; temp; temp = temp->next)
1736 delete_if_ordinary (temp->name);
1737 always_delete_queue = 0;
1740 /* Delete all the files to be deleted on error. */
1743 delete_failure_queue ()
1745 register struct temp_file *temp;
1747 for (temp = failure_delete_queue; temp; temp = temp->next)
1748 delete_if_ordinary (temp->name);
1752 clear_failure_queue ()
1754 failure_delete_queue = 0;
1757 /* Routine to add variables to the environment. We do this to pass
1758 the pathname of the gcc driver, and the directories search to the
1759 collect2 program, which is being run as ld. This way, we can be
1760 sure of executing the right compiler when collect2 wants to build
1761 constructors and destructors. Since the environment variables we
1762 use come from an obstack, we don't have to worry about allocating
1771 #ifndef VMS /* nor about VMS */
1773 extern char **environ;
1774 char **old_environ = environ;
1778 int str_len = strlen (str);
1782 while ((ch = *p++) != '\0' && ch != '=')
1788 /* Search for replacing an existing environment variable, and
1789 count the number of total environment variables. */
1790 for (envp = old_environ; *envp; envp++)
1793 if (!strncmp (str, *envp, name_len))
1800 /* Add a new environment variable */
1801 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1803 bcopy ((char *) old_environ, (char *) (environ + 1),
1804 sizeof (char *) * (num_envs+1));
1809 #endif /* HAVE_PUTENV */
1812 /* Build a list of search directories from PATHS.
1813 PREFIX is a string to prepend to the list.
1814 If CHECK_DIR_P is non-zero we ensure the directory exists.
1815 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1816 It is also used by the --print-search-dirs flag. */
1819 build_search_list (paths, prefix, check_dir_p)
1820 struct path_prefix *paths;
1824 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1826 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1827 int first_time = TRUE;
1828 struct prefix_list *pprefix;
1830 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1832 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1834 int len = strlen (pprefix->prefix);
1838 || is_directory (pprefix->prefix, machine_suffix, 0)))
1841 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1844 obstack_grow (&collect_obstack, pprefix->prefix, len);
1845 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1848 if (just_machine_suffix
1849 && pprefix->require_machine_suffix == 2
1851 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1854 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1857 obstack_grow (&collect_obstack, pprefix->prefix, len);
1858 obstack_grow (&collect_obstack, just_machine_suffix,
1862 if (! pprefix->require_machine_suffix)
1865 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1868 obstack_grow (&collect_obstack, pprefix->prefix, len);
1872 obstack_1grow (&collect_obstack, '\0');
1873 return obstack_finish (&collect_obstack);
1876 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1880 putenv_from_prefixes (paths, env_var)
1881 struct path_prefix *paths;
1884 putenv (build_search_list (paths, env_var, 1));
1887 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1888 access to check permissions.
1889 Return 0 if not found, otherwise return its name, allocated with malloc. */
1892 find_a_file (pprefix, name, mode)
1893 struct path_prefix *pprefix;
1898 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1899 struct prefix_list *pl;
1900 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1903 len += strlen (machine_suffix);
1905 temp = xmalloc (len);
1907 /* Determine the filename to execute (special case for absolute paths). */
1909 if (*name == '/' || *name == DIR_SEPARATOR
1910 /* Check for disk name on MS-DOS-based systems. */
1911 || (DIR_SEPARATOR == '\\' && name[1] == ':'
1912 && (name[2] == DIR_SEPARATOR || name[2] == '/')))
1914 if (access (name, mode))
1916 strcpy (temp, name);
1921 for (pl = pprefix->plist; pl; pl = pl->next)
1925 /* Some systems have a suffix for executable files.
1926 So try appending that first. */
1927 if (file_suffix[0] != 0)
1929 strcpy (temp, pl->prefix);
1930 strcat (temp, machine_suffix);
1931 strcat (temp, name);
1932 strcat (temp, file_suffix);
1933 if (access (temp, mode) == 0)
1935 if (pl->used_flag_ptr != 0)
1936 *pl->used_flag_ptr = 1;
1941 /* Now try just the name. */
1942 strcpy (temp, pl->prefix);
1943 strcat (temp, machine_suffix);
1944 strcat (temp, name);
1945 if (access (temp, mode) == 0)
1947 if (pl->used_flag_ptr != 0)
1948 *pl->used_flag_ptr = 1;
1953 /* Certain prefixes are tried with just the machine type,
1954 not the version. This is used for finding as, ld, etc. */
1955 if (just_machine_suffix && pl->require_machine_suffix == 2)
1957 /* Some systems have a suffix for executable files.
1958 So try appending that first. */
1959 if (file_suffix[0] != 0)
1961 strcpy (temp, pl->prefix);
1962 strcat (temp, just_machine_suffix);
1963 strcat (temp, name);
1964 strcat (temp, file_suffix);
1965 if (access (temp, mode) == 0)
1967 if (pl->used_flag_ptr != 0)
1968 *pl->used_flag_ptr = 1;
1973 strcpy (temp, pl->prefix);
1974 strcat (temp, just_machine_suffix);
1975 strcat (temp, name);
1976 if (access (temp, mode) == 0)
1978 if (pl->used_flag_ptr != 0)
1979 *pl->used_flag_ptr = 1;
1984 /* Certain prefixes can't be used without the machine suffix
1985 when the machine or version is explicitly specified. */
1986 if (! pl->require_machine_suffix)
1988 /* Some systems have a suffix for executable files.
1989 So try appending that first. */
1990 if (file_suffix[0] != 0)
1992 strcpy (temp, pl->prefix);
1993 strcat (temp, name);
1994 strcat (temp, file_suffix);
1995 if (access (temp, mode) == 0)
1997 if (pl->used_flag_ptr != 0)
1998 *pl->used_flag_ptr = 1;
2003 strcpy (temp, pl->prefix);
2004 strcat (temp, name);
2005 if (access (temp, mode) == 0)
2007 if (pl->used_flag_ptr != 0)
2008 *pl->used_flag_ptr = 1;
2018 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
2019 at the start of the list, otherwise it goes at the end.
2021 If WARN is nonzero, we will warn if no file is found
2022 through this prefix. WARN should point to an int
2023 which will be set to 1 if this entry is used.
2025 COMPONENT is the value to be passed to update_path.
2027 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2028 the complete value of machine_suffix.
2029 2 means try both machine_suffix and just_machine_suffix. */
2032 add_prefix (pprefix, prefix, component, first, require_machine_suffix, warn)
2033 struct path_prefix *pprefix;
2037 int require_machine_suffix;
2040 struct prefix_list *pl, **prev;
2043 if (! first && pprefix->plist)
2045 for (pl = pprefix->plist; pl->next; pl = pl->next)
2050 prev = &pprefix->plist;
2052 /* Keep track of the longest prefix */
2054 prefix = update_path (prefix, component);
2055 len = strlen (prefix);
2056 if (len > pprefix->max_len)
2057 pprefix->max_len = len;
2059 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
2060 pl->prefix = save_string (prefix, len);
2061 pl->require_machine_suffix = require_machine_suffix;
2062 pl->used_flag_ptr = warn;
2069 pl->next = (struct prefix_list *) 0;
2073 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
2076 unused_prefix_warnings (pprefix)
2077 struct path_prefix *pprefix;
2079 struct prefix_list *pl = pprefix->plist;
2083 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
2085 if (pl->require_machine_suffix && machine_suffix)
2086 error ("file path prefix `%s%s' never used", pl->prefix,
2089 error ("file path prefix `%s' never used", pl->prefix);
2091 /* Prevent duplicate warnings. */
2092 *pl->used_flag_ptr = 1;
2099 /* Get rid of all prefixes built up so far in *PLISTP. */
2102 free_path_prefix (pprefix)
2103 struct path_prefix *pprefix;
2105 struct prefix_list *pl = pprefix->plist;
2106 struct prefix_list *temp;
2112 free (temp->prefix);
2113 free ((char *) temp);
2116 pprefix->plist = (struct prefix_list *) 0;
2119 /* Execute the command specified by the arguments on the current line of spec.
2120 When using pipes, this includes several piped-together commands
2121 with `|' between them.
2123 Return 0 if successful, -1 if failed. */
2129 int n_commands; /* # of command. */
2133 char *prog; /* program name. */
2134 char **argv; /* vector of args. */
2135 int pid; /* pid of process for this command. */
2138 struct command *commands; /* each command buffer with above info. */
2140 /* Count # of piped commands. */
2141 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2142 if (strcmp (argbuf[i], "|") == 0)
2145 /* Get storage for each command. */
2147 = (struct command *) alloca (n_commands * sizeof (struct command));
2149 /* Split argbuf into its separate piped processes,
2150 and record info about each one.
2151 Also search for the programs that are to be run. */
2153 commands[0].prog = argbuf[0]; /* first command. */
2154 commands[0].argv = &argbuf[0];
2155 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2157 commands[0].argv[0] = string;
2159 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2160 if (strcmp (argbuf[i], "|") == 0)
2161 { /* each command. */
2162 #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__)) || defined (OS2) || defined (VMS)
2163 fatal ("-pipe not supported");
2165 argbuf[i] = 0; /* termination of command args. */
2166 commands[n_commands].prog = argbuf[i + 1];
2167 commands[n_commands].argv = &argbuf[i + 1];
2168 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2170 commands[n_commands].argv[0] = string;
2174 argbuf[argbuf_index] = 0;
2176 /* If -v, print what we are about to do, and maybe query. */
2180 /* Print each piped command as a separate line. */
2181 for (i = 0; i < n_commands ; i++)
2185 for (j = commands[i].argv; *j; j++)
2186 fprintf (stderr, " %s", *j);
2188 /* Print a pipe symbol after all but the last command. */
2189 if (i + 1 != n_commands)
2190 fprintf (stderr, " |");
2191 fprintf (stderr, "\n");
2195 fprintf (stderr, "\nGo ahead? (y or n) ");
2199 while (getchar () != '\n')
2202 if (i != 'y' && i != 'Y')
2207 /* Run each piped subprocess. */
2209 for (i = 0; i < n_commands; i++)
2211 char *errmsg_fmt, *errmsg_arg;
2212 char *string = commands[i].argv[0];
2214 commands[i].pid = pexecute (string, commands[i].argv,
2215 programname, temp_filename,
2216 &errmsg_fmt, &errmsg_arg,
2217 ((i == 0 ? PEXECUTE_FIRST : 0)
2218 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2219 | (string == commands[i].prog
2220 ? PEXECUTE_SEARCH : 0)
2221 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2223 if (commands[i].pid == -1)
2224 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2226 if (string != commands[i].prog)
2232 /* Wait for all the subprocesses to finish.
2233 We don't care what order they finish in;
2234 we know that N_COMMANDS waits will get them all.
2235 Ignore subprocesses that we don't know about,
2236 since they can be spawned by the process that exec'ed us. */
2241 for (i = 0; i < n_commands; )
2247 pid = pwait (commands[i].pid, &status, 0);
2251 for (j = 0; j < n_commands; j++)
2252 if (commands[j].pid == pid)
2257 if (WIFSIGNALED (status))
2259 fatal ("Internal compiler error: program %s got fatal signal %d",
2260 commands[j].prog, WTERMSIG (status));
2264 else if (WIFEXITED (status)
2265 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2275 /* Find all the switches given to us
2276 and make a vector describing them.
2277 The elements of the vector are strings, one per switch given.
2278 If a switch uses following arguments, then the `part1' field
2279 is the switch itself and the `args' field
2280 is a null-terminated vector containing the following arguments.
2281 The `live_cond' field is 1 if the switch is true in a conditional spec,
2282 -1 if false (overridden by a later switch), and is initialized to zero.
2283 The `valid' field is nonzero if any spec has looked at this switch;
2284 if it remains zero at the end of the run, it must be meaningless. */
2294 static struct switchstr *switches;
2296 static int n_switches;
2304 /* Also a vector of input files specified. */
2306 static struct infile *infiles;
2308 static int n_infiles;
2310 /* And a vector of corresponding output files is made up later. */
2312 static char **outfiles;
2314 /* Used to track if none of the -B paths are used. */
2317 /* Used to track if standard path isn't used and -b or -V is specified. */
2318 static int warn_std;
2320 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2321 static int *warn_std_ptr = 0;
2324 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2326 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2327 is true if we should look for an executable suffix as well. */
2330 convert_filename (name, do_exe)
2335 int len = strlen (name);
2337 #ifdef HAVE_OBJECT_SUFFIX
2338 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2340 && name[len - 2] == '.'
2341 && name[len - 1] == 'o')
2343 obstack_grow (&obstack, name, len - 2);
2344 obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2345 name = obstack_finish (&obstack);
2349 #ifdef HAVE_EXECUTABLE_SUFFIX
2350 /* If there is no filetype, make it the executable suffix (which includes
2351 the "."). But don't get confused if we have just "-o". */
2352 if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2355 for (i = len - 1; i >= 0; i--)
2356 if (name[i] == '/' || name[i] == DIR_SEPARATOR)
2359 for (i++; i < len; i++)
2363 obstack_grow (&obstack, name, len);
2364 obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX));
2365 name = obstack_finish (&obstack);
2372 /* Create the vector `switches' and its contents.
2373 Store its length in `n_switches'. */
2376 process_command (argc, argv)
2382 char *spec_lang = 0;
2383 int last_language_n_infiles;
2386 int lang_n_infiles = 0;
2388 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2393 /* Figure compiler version from version string. */
2395 compiler_version = save_string (version_string, strlen (version_string));
2396 for (temp = compiler_version; *temp; ++temp)
2405 /* Set up the default search paths. */
2407 if (gcc_exec_prefix)
2409 add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC", 0, 0, NULL_PTR);
2410 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC", 0, 0, NULL_PTR);
2413 /* COMPILER_PATH and LIBRARY_PATH have values
2414 that are lists of directory names with colons. */
2416 temp = getenv ("COMPILER_PATH");
2419 char *startp, *endp;
2420 char *nstore = (char *) alloca (strlen (temp) + 3);
2422 startp = endp = temp;
2425 if (*endp == PATH_SEPARATOR || *endp == 0)
2427 strncpy (nstore, startp, endp-startp);
2429 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2430 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2432 nstore[endp-startp] = DIR_SEPARATOR;
2433 nstore[endp-startp+1] = 0;
2436 nstore[endp-startp] = 0;
2437 add_prefix (&exec_prefixes, nstore, 0, 0, 0, NULL_PTR);
2438 add_prefix (&include_prefixes,
2439 concat (nstore, "include", NULL_PTR),
2443 endp = startp = endp + 1;
2450 temp = getenv ("LIBRARY_PATH");
2451 if (temp && *cross_compile == '0')
2453 char *startp, *endp;
2454 char *nstore = (char *) alloca (strlen (temp) + 3);
2456 startp = endp = temp;
2459 if (*endp == PATH_SEPARATOR || *endp == 0)
2461 strncpy (nstore, startp, endp-startp);
2463 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2464 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2466 nstore[endp-startp] = DIR_SEPARATOR;
2467 nstore[endp-startp+1] = 0;
2470 nstore[endp-startp] = 0;
2471 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
2475 endp = startp = endp + 1;
2482 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2483 temp = getenv ("LPATH");
2484 if (temp && *cross_compile == '0')
2486 char *startp, *endp;
2487 char *nstore = (char *) alloca (strlen (temp) + 3);
2489 startp = endp = temp;
2492 if (*endp == PATH_SEPARATOR || *endp == 0)
2494 strncpy (nstore, startp, endp-startp);
2496 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2497 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2499 nstore[endp-startp] = DIR_SEPARATOR;
2500 nstore[endp-startp+1] = 0;
2503 nstore[endp-startp] = 0;
2504 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
2508 endp = startp = endp + 1;
2515 /* Convert new-style -- options to old-style. */
2516 translate_options (&argc, &argv);
2518 #ifdef LANG_SPECIFIC_DRIVER
2519 /* Do language-specific adjustment/addition of flags. */
2520 lang_specific_driver (fatal, &argc, &argv);
2523 /* Scan argv twice. Here, the first time, just count how many switches
2524 there will be in their vector, and how many input files in theirs.
2525 Here we also parse the switches that cc itself uses (e.g. -v). */
2527 for (i = 1; i < argc; i++)
2529 if (! strcmp (argv[i], "-dumpspecs"))
2531 struct spec_list *sl;
2533 for (sl = specs; sl; sl = sl->next)
2534 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
2537 else if (! strcmp (argv[i], "-dumpversion"))
2539 printf ("%s\n", version_string);
2542 else if (! strcmp (argv[i], "-dumpmachine"))
2544 printf ("%s\n", spec_machine);
2547 else if (! strcmp (argv[i], "-print-search-dirs"))
2548 print_search_dirs = 1;
2549 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2550 print_file_name = "libgcc.a";
2551 else if (! strncmp (argv[i], "-print-file-name=", 17))
2552 print_file_name = argv[i] + 17;
2553 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2554 print_prog_name = argv[i] + 17;
2555 else if (! strcmp (argv[i], "-print-multi-lib"))
2556 print_multi_lib = 1;
2557 else if (! strcmp (argv[i], "-print-multi-directory"))
2558 print_multi_directory = 1;
2559 else if (! strncmp (argv[i], "-Wa,", 4))
2562 /* Pass the rest of this option to the assembler. */
2564 n_assembler_options++;
2565 if (!assembler_options)
2567 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2570 = (char **) xrealloc (assembler_options,
2571 n_assembler_options * sizeof (char **));
2573 /* Split the argument at commas. */
2575 for (j = 4; argv[i][j]; j++)
2576 if (argv[i][j] == ',')
2578 assembler_options[n_assembler_options - 1]
2579 = save_string (argv[i] + prev, j - prev);
2580 n_assembler_options++;
2582 = (char **) xrealloc (assembler_options,
2583 n_assembler_options * sizeof (char **));
2586 /* Record the part after the last comma. */
2587 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2589 else if (! strncmp (argv[i], "-Wp,", 4))
2592 /* Pass the rest of this option to the preprocessor. */
2594 n_preprocessor_options++;
2595 if (!preprocessor_options)
2596 preprocessor_options
2597 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2599 preprocessor_options
2600 = (char **) xrealloc (preprocessor_options,
2601 n_preprocessor_options * sizeof (char **));
2603 /* Split the argument at commas. */
2605 for (j = 4; argv[i][j]; j++)
2606 if (argv[i][j] == ',')
2608 preprocessor_options[n_preprocessor_options - 1]
2609 = save_string (argv[i] + prev, j - prev);
2610 n_preprocessor_options++;
2611 preprocessor_options
2612 = (char **) xrealloc (preprocessor_options,
2613 n_preprocessor_options * sizeof (char **));
2616 /* Record the part after the last comma. */
2617 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2619 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2620 /* The +e options to the C++ front-end. */
2622 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2625 /* Split the argument at commas. */
2626 for (j = 3; argv[i][j]; j++)
2627 n_infiles += (argv[i][j] == ',');
2629 else if (strcmp (argv[i], "-Xlinker") == 0)
2632 fatal ("argument to `-Xlinker' is missing");
2637 else if (strncmp (argv[i], "-l", 2) == 0)
2639 else if (strcmp (argv[i], "-save-temps") == 0)
2641 save_temps_flag = 1;
2644 else if (strcmp (argv[i], "-specs") == 0)
2646 struct user_specs *user = (struct user_specs *)
2647 xmalloc (sizeof (struct user_specs));
2649 fatal ("argument to `-specs' is missing");
2651 user->next = (struct user_specs *)0;
2652 user->filename = argv[i];
2653 if (user_specs_tail)
2654 user_specs_tail->next = user;
2656 user_specs_head = user;
2657 user_specs_tail = user;
2659 else if (strncmp (argv[i], "-specs=", 7) == 0)
2661 struct user_specs *user = (struct user_specs *)
2662 xmalloc (sizeof (struct user_specs));
2663 if (strlen (argv[i]) == 7)
2664 fatal ("argument to `-specs=' is missing");
2666 user->next = (struct user_specs *)0;
2667 user->filename = argv[i]+7;
2668 if (user_specs_tail)
2669 user_specs_tail->next = user;
2671 user_specs_head = user;
2672 user_specs_tail = user;
2674 else if (argv[i][0] == '-' && argv[i][1] != 0)
2676 register char *p = &argv[i][1];
2677 register int c = *p;
2683 if (p[1] == 0 && i + 1 == argc)
2684 fatal ("argument to `-b' is missing");
2686 spec_machine = argv[++i];
2688 spec_machine = p + 1;
2690 warn_std_ptr = &warn_std;
2695 int *temp = (int *) xmalloc (sizeof (int));
2697 if (p[1] == 0 && i + 1 == argc)
2698 fatal ("argument to `-B' is missing");
2703 add_prefix (&exec_prefixes, value, NULL_PTR, 1, 0, &warn_B);
2704 add_prefix (&startfile_prefixes, value, NULL_PTR,
2706 add_prefix (&include_prefixes, concat (value, "include",
2708 NULL_PTR, 1, 0, NULL_PTR);
2710 /* As a kludge, if the arg is "[foo/]stageN/", just add
2711 "[foo/]include" to the include prefix. */
2713 int len = strlen (value);
2716 && (value[len - 8] == '/'
2717 || value[len - 8] == DIR_SEPARATOR)))
2718 && strncmp (value + len - 7, "stage", 5) == 0
2719 && isdigit (value[len - 2])
2720 && (value[len - 1] == '/'
2721 || value[len - 1] == DIR_SEPARATOR))
2724 add_prefix (&include_prefixes, "include", NULL_PTR,
2728 char *string = xmalloc (len + 1);
2729 strncpy (string, value, len-7);
2730 strcpy (string+len-7, "include");
2731 add_prefix (&include_prefixes, string, NULL_PTR,
2740 case 'v': /* Print our subcommands and print versions. */
2742 /* If they do anything other than exactly `-v', don't set
2743 verbose_flag; rather, continue on to give the error. */
2751 if (p[1] == 0 && i + 1 == argc)
2752 fatal ("argument to `-V' is missing");
2754 spec_version = argv[++i];
2756 spec_version = p + 1;
2757 compiler_version = spec_version;
2758 warn_std_ptr = &warn_std;
2772 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
2773 argv[i] = convert_filename (argv[i], 1);
2775 argv[i+1] = convert_filename (argv[i+1], 1);
2783 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2784 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2785 else if (WORD_SWITCH_TAKES_ARG (p))
2786 i += WORD_SWITCH_TAKES_ARG (p);
2796 if (have_c && have_o && lang_n_infiles > 1)
2797 fatal ("cannot specify -o with -c and multiple compilations");
2799 /* Set up the search paths before we go looking for config files. */
2801 /* These come before the md prefixes so that we will find gcc's subcommands
2802 (such as cpp) rather than those of the host system. */
2803 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2804 as well as trying the machine and the version. */
2806 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
2807 0, 2, warn_std_ptr);
2808 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
2809 0, 2, warn_std_ptr);
2812 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
2813 0, 1, warn_std_ptr);
2814 add_prefix (&startfile_prefixes, standard_exec_prefix_1, "BINUTILS",
2815 0, 1, warn_std_ptr);
2817 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
2818 dir_separator_str, NULL_PTR);
2820 /* If tooldir is relative, base it on exec_prefixes. A relative
2821 tooldir lets us move the installed tree as a unit.
2823 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2824 directories, so that we can search both the user specified directory
2825 and the standard place. */
2827 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
2829 if (gcc_exec_prefix)
2831 char *gcc_exec_tooldir_prefix
2832 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
2833 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
2835 add_prefix (&exec_prefixes,
2836 concat (gcc_exec_tooldir_prefix, "bin",
2837 dir_separator_str, NULL_PTR),
2838 NULL_PTR, 0, 0, NULL_PTR);
2839 add_prefix (&startfile_prefixes,
2840 concat (gcc_exec_tooldir_prefix, "lib",
2841 dir_separator_str, NULL_PTR),
2842 NULL_PTR, 0, 0, NULL_PTR);
2845 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
2846 dir_separator_str, spec_version,
2847 dir_separator_str, tooldir_prefix, NULL_PTR);
2850 add_prefix (&exec_prefixes,
2851 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
2852 "BINUTILS", 0, 0, NULL_PTR);
2853 add_prefix (&startfile_prefixes,
2854 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
2855 "BINUTILS", 0, 0, NULL_PTR);
2857 /* More prefixes are enabled in main, after we read the specs file
2858 and determine whether this is cross-compilation or not. */
2861 /* Then create the space for the vectors and scan again. */
2863 switches = ((struct switchstr *)
2864 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2865 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2868 last_language_n_infiles = -1;
2870 /* This, time, copy the text of each switch and store a pointer
2871 to the copy in the vector of switches.
2872 Store all the infiles in their vector. */
2874 for (i = 1; i < argc; i++)
2876 /* Just skip the switches that were handled by the preceding loop. */
2877 if (! strncmp (argv[i], "-Wa,", 4))
2879 else if (! strncmp (argv[i], "-Wp,", 4))
2881 else if (! strcmp (argv[i], "-print-search-dirs"))
2883 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2885 else if (! strncmp (argv[i], "-print-file-name=", 17))
2887 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2889 else if (! strcmp (argv[i], "-print-multi-lib"))
2891 else if (! strcmp (argv[i], "-print-multi-directory"))
2893 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2895 /* Compensate for the +e options to the C++ front-end;
2896 they're there simply for cfront call-compatibility. We do
2897 some magic in default_compilers to pass them down properly.
2898 Note we deliberately start at the `+' here, to avoid passing
2899 -e0 or -e1 down into the linker. */
2900 switches[n_switches].part1 = &argv[i][0];
2901 switches[n_switches].args = 0;
2902 switches[n_switches].live_cond = 0;
2903 switches[n_switches].valid = 0;
2906 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2909 /* Split the argument at commas. */
2911 for (j = 4; argv[i][j]; j++)
2912 if (argv[i][j] == ',')
2914 infiles[n_infiles].language = 0;
2915 infiles[n_infiles++].name
2916 = save_string (argv[i] + prev, j - prev);
2919 /* Record the part after the last comma. */
2920 infiles[n_infiles].language = 0;
2921 infiles[n_infiles++].name = argv[i] + prev;
2923 else if (strcmp (argv[i], "-Xlinker") == 0)
2925 infiles[n_infiles].language = 0;
2926 infiles[n_infiles++].name = argv[++i];
2928 else if (strncmp (argv[i], "-l", 2) == 0)
2930 infiles[n_infiles].language = 0;
2931 infiles[n_infiles++].name = argv[i];
2933 else if (strcmp (argv[i], "-specs") == 0)
2935 else if (strncmp (argv[i], "-specs=", 7) == 0)
2937 /* -save-temps overrides -pipe, so that temp files are produced */
2938 else if (save_temps_flag && strcmp (argv[i], "-pipe") == 0)
2939 error ("Warning: -pipe ignored since -save-temps specified");
2940 else if (argv[i][0] == '-' && argv[i][1] != 0)
2942 register char *p = &argv[i][1];
2943 register int c = *p;
2947 if (p[1] == 0 && i + 1 == argc)
2948 fatal ("argument to `-x' is missing");
2950 spec_lang = argv[++i];
2953 if (! strcmp (spec_lang, "none"))
2954 /* Suppress the warning if -xnone comes after the last input
2955 file, because alternate command interfaces like g++ might
2956 find it useful to place -xnone after each input file. */
2959 last_language_n_infiles = n_infiles;
2962 switches[n_switches].part1 = p;
2963 /* Deal with option arguments in separate argv elements. */
2964 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2965 || WORD_SWITCH_TAKES_ARG (p))
2968 int n_args = WORD_SWITCH_TAKES_ARG (p);
2972 /* Count only the option arguments in separate argv elements. */
2973 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2975 if (i + n_args >= argc)
2976 fatal ("argument to `-%s' is missing", p);
2977 switches[n_switches].args
2978 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2980 switches[n_switches].args[j++] = argv[++i];
2981 /* Null-terminate the vector. */
2982 switches[n_switches].args[j] = 0;
2984 else if (index (switches_need_spaces, c))
2986 /* On some systems, ld cannot handle some options without
2987 a space. So split the option from its argument. */
2988 char *part1 = (char *) xmalloc (2);
2992 switches[n_switches].part1 = part1;
2993 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2994 switches[n_switches].args[0] = xmalloc (strlen (p));
2995 strcpy (switches[n_switches].args[0], &p[1]);
2996 switches[n_switches].args[1] = 0;
2999 switches[n_switches].args = 0;
3001 switches[n_switches].live_cond = 0;
3002 switches[n_switches].valid = 0;
3003 /* This is always valid, since gcc.c itself understands it. */
3004 if (!strcmp (p, "save-temps"))
3005 switches[n_switches].valid = 1;
3008 char ch = switches[n_switches].part1[0];
3009 if (ch == 'V' || ch == 'b' || ch == 'B')
3010 switches[n_switches].valid = 1;
3016 #ifdef HAVE_OBJECT_SUFFIX
3017 argv[i] = convert_filename (argv[i], 0);
3020 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
3022 perror_with_name (argv[i]);
3027 infiles[n_infiles].language = spec_lang;
3028 infiles[n_infiles++].name = argv[i];
3033 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3034 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
3036 switches[n_switches].part1 = 0;
3037 infiles[n_infiles].name = 0;
3040 /* Process a spec string, accumulating and running commands. */
3042 /* These variables describe the input file name.
3043 input_file_number is the index on outfiles of this file,
3044 so that the output file name can be stored for later use by %o.
3045 input_basename is the start of the part of the input file
3046 sans all directory names, and basename_length is the number
3047 of characters starting there excluding the suffix .c or whatever. */
3049 static char *input_filename;
3050 static int input_file_number;
3051 static int input_filename_length;
3052 static int basename_length;
3053 static char *input_basename;
3054 static char *input_suffix;
3056 /* These are variables used within do_spec and do_spec_1. */
3058 /* Nonzero if an arg has been started and not yet terminated
3059 (with space, tab or newline). */
3060 static int arg_going;
3062 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3063 is a temporary file name. */
3064 static int delete_this_arg;
3066 /* Nonzero means %w has been seen; the next arg to be terminated
3067 is the output file name of this compilation. */
3068 static int this_is_output_file;
3070 /* Nonzero means %s has been seen; the next arg to be terminated
3071 is the name of a library file and we should try the standard
3072 search dirs for it. */
3073 static int this_is_library_file;
3075 /* Nonzero means that the input of this command is coming from a pipe. */
3076 static int input_from_pipe;
3078 /* Process the spec SPEC and run the commands specified therein.
3079 Returns 0 if the spec is successfully processed; -1 if failed. */
3089 delete_this_arg = 0;
3090 this_is_output_file = 0;
3091 this_is_library_file = 0;
3092 input_from_pipe = 0;
3094 value = do_spec_1 (spec, 0, NULL_PTR);
3096 /* Force out any unfinished command.
3097 If -pipe, this forces out the last command if it ended in `|'. */
3100 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3103 if (argbuf_index > 0)
3110 /* Process the sub-spec SPEC as a portion of a larger spec.
3111 This is like processing a whole spec except that we do
3112 not initialize at the beginning and we do not supply a
3113 newline by default at the end.
3114 INSWITCH nonzero means don't process %-sequences in SPEC;
3115 in this case, % is treated as an ordinary character.
3116 This is used while substituting switches.
3117 INSWITCH nonzero also causes SPC not to terminate an argument.
3119 Value is zero unless a line was finished
3120 and the command on that line reported an error. */
3123 do_spec_1 (spec, inswitch, soft_matched_part)
3126 char *soft_matched_part;
3128 register char *p = spec;
3135 /* If substituting a switch, treat all chars like letters.
3136 Otherwise, NL, SPC, TAB and % are special. */
3137 switch (inswitch ? 'a' : c)
3140 /* End of line: finish any pending argument,
3141 then run the pending command if one has been started. */
3144 obstack_1grow (&obstack, 0);
3145 string = obstack_finish (&obstack);
3146 if (this_is_library_file)
3147 string = find_file (string);
3148 store_arg (string, delete_this_arg, this_is_output_file);
3149 if (this_is_output_file)
3150 outfiles[input_file_number] = string;
3154 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3156 for (i = 0; i < n_switches; i++)
3157 if (!strcmp (switches[i].part1, "pipe"))
3160 /* A `|' before the newline means use a pipe here,
3161 but only if -pipe was specified.
3162 Otherwise, execute now and don't pass the `|' as an arg. */
3165 input_from_pipe = 1;
3166 switches[i].valid = 1;
3173 if (argbuf_index > 0)
3179 /* Reinitialize for a new command, and for a new argument. */
3182 delete_this_arg = 0;
3183 this_is_output_file = 0;
3184 this_is_library_file = 0;
3185 input_from_pipe = 0;
3189 /* End any pending argument. */
3192 obstack_1grow (&obstack, 0);
3193 string = obstack_finish (&obstack);
3194 if (this_is_library_file)
3195 string = find_file (string);
3196 store_arg (string, delete_this_arg, this_is_output_file);
3197 if (this_is_output_file)
3198 outfiles[input_file_number] = string;
3202 obstack_1grow (&obstack, c);
3208 /* Space or tab ends an argument if one is pending. */
3211 obstack_1grow (&obstack, 0);
3212 string = obstack_finish (&obstack);
3213 if (this_is_library_file)
3214 string = find_file (string);
3215 store_arg (string, delete_this_arg, this_is_output_file);
3216 if (this_is_output_file)
3217 outfiles[input_file_number] = string;
3219 /* Reinitialize for a new argument. */
3221 delete_this_arg = 0;
3222 this_is_output_file = 0;
3223 this_is_library_file = 0;
3230 fatal ("Invalid specification! Bug in cc.");
3233 obstack_grow (&obstack, input_basename, basename_length);
3238 delete_this_arg = 2;
3241 /* Dump out the directories specified with LIBRARY_PATH,
3242 followed by the absolute directories
3243 that we search for startfiles. */
3246 struct prefix_list *pl = startfile_prefixes.plist;
3248 char *buffer = (char *) xmalloc (bufsize);
3251 for (; pl; pl = pl->next)
3253 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3254 /* Used on systems which record the specified -L dirs
3255 and use them to search for dynamic linking. */
3256 /* Relative directories always come from -B,
3257 and it is better not to use them for searching
3258 at run time. In particular, stage1 loses */
3259 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3262 /* Try subdirectory if there is one. */
3263 if (multilib_dir != NULL)
3267 if (strlen (pl->prefix) + strlen (machine_suffix)
3269 bufsize = (strlen (pl->prefix)
3270 + strlen (machine_suffix)) * 2 + 1;
3271 buffer = (char *) xrealloc (buffer, bufsize);
3272 strcpy (buffer, pl->prefix);
3273 strcat (buffer, machine_suffix);
3274 if (is_directory (buffer, multilib_dir, 1))
3276 do_spec_1 ("-L", 0, NULL_PTR);
3277 #ifdef SPACE_AFTER_L_OPTION
3278 do_spec_1 (" ", 0, NULL_PTR);
3280 do_spec_1 (buffer, 1, NULL_PTR);
3281 do_spec_1 (multilib_dir, 1, NULL_PTR);
3282 /* Make this a separate argument. */
3283 do_spec_1 (" ", 0, NULL_PTR);
3286 if (!pl->require_machine_suffix)
3288 if (is_directory (pl->prefix, multilib_dir, 1))
3290 do_spec_1 ("-L", 0, NULL_PTR);
3291 #ifdef SPACE_AFTER_L_OPTION
3292 do_spec_1 (" ", 0, NULL_PTR);
3294 do_spec_1 (pl->prefix, 1, NULL_PTR);
3295 do_spec_1 (multilib_dir, 1, NULL_PTR);
3296 /* Make this a separate argument. */
3297 do_spec_1 (" ", 0, NULL_PTR);
3303 if (is_directory (pl->prefix, machine_suffix, 1))
3305 do_spec_1 ("-L", 0, NULL_PTR);
3306 #ifdef SPACE_AFTER_L_OPTION
3307 do_spec_1 (" ", 0, NULL_PTR);
3309 do_spec_1 (pl->prefix, 1, NULL_PTR);
3310 /* Remove slash from machine_suffix. */
3311 if (strlen (machine_suffix) >= bufsize)
3312 bufsize = strlen (machine_suffix) * 2 + 1;
3313 buffer = (char *) xrealloc (buffer, bufsize);
3314 strcpy (buffer, machine_suffix);
3315 idx = strlen (buffer);
3316 if (buffer[idx - 1] == '/'
3317 || buffer[idx - 1] == DIR_SEPARATOR)
3318 buffer[idx - 1] = 0;
3319 do_spec_1 (buffer, 1, NULL_PTR);
3320 /* Make this a separate argument. */
3321 do_spec_1 (" ", 0, NULL_PTR);
3324 if (!pl->require_machine_suffix)
3326 if (is_directory (pl->prefix, "", 1))
3328 do_spec_1 ("-L", 0, NULL_PTR);
3329 #ifdef SPACE_AFTER_L_OPTION
3330 do_spec_1 (" ", 0, NULL_PTR);
3332 /* Remove slash from pl->prefix. */
3333 if (strlen (pl->prefix) >= bufsize)
3334 bufsize = strlen (pl->prefix) * 2 + 1;
3335 buffer = (char *) xrealloc (buffer, bufsize);
3336 strcpy (buffer, pl->prefix);
3337 idx = strlen (buffer);
3338 if (buffer[idx - 1] == '/'
3339 || buffer[idx - 1] == DIR_SEPARATOR)
3340 buffer[idx - 1] = 0;
3341 do_spec_1 (buffer, 1, NULL_PTR);
3342 /* Make this a separate argument. */
3343 do_spec_1 (" ", 0, NULL_PTR);
3352 /* {...:%efoo} means report an error with `foo' as error message
3353 and don't execute any more commands for this file. */
3357 while (*p != 0 && *p != '\n') p++;
3358 buf = (char *) alloca (p - q + 1);
3359 strncpy (buf, q, p - q);
3369 if (save_temps_flag)
3371 obstack_grow (&obstack, input_basename, basename_length);
3372 delete_this_arg = 0;
3376 #ifdef MKTEMP_EACH_FILE
3377 /* ??? This has a problem: the total number of
3378 values mktemp can return is limited.
3379 That matters for the names of object files.
3380 In 2.4, do something about that. */
3381 struct temp_name *t;
3383 while (*p == '.' || isalpha (*p)
3384 || (p[0] == '%' && p[1] == 'O'))
3387 /* See if we already have an association of %g/%u/%U and
3389 for (t = temp_names; t; t = t->next)
3390 if (t->length == p - suffix
3391 && strncmp (t->suffix, suffix, p - suffix) == 0
3392 && t->unique == (c != 'g'))
3395 /* Make a new association if needed. %u requires one. */
3396 if (t == 0 || c == 'u')
3400 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3401 t->next = temp_names;
3404 t->length = p - suffix;
3405 t->suffix = save_string (suffix, p - suffix);
3406 t->unique = (c != 'g');
3407 temp_filename = choose_temp_base ();
3408 temp_filename_length = strlen (temp_filename);
3409 t->filename = temp_filename;
3410 t->filename_length = temp_filename_length;
3413 obstack_grow (&obstack, t->filename, t->filename_length);
3414 delete_this_arg = 1;
3416 obstack_grow (&obstack, temp_filename, temp_filename_length);
3417 if (c == 'u' || c == 'U')
3423 sprintf (buff, "%d", unique);
3424 obstack_grow (&obstack, buff, strlen (buff));
3427 delete_this_arg = 1;
3433 obstack_grow (&obstack, input_filename, input_filename_length);
3439 struct prefix_list *pl = include_prefixes.plist;
3441 if (gcc_exec_prefix)
3443 do_spec_1 ("-iprefix", 1, NULL_PTR);
3444 /* Make this a separate argument. */
3445 do_spec_1 (" ", 0, NULL_PTR);
3446 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3447 do_spec_1 (" ", 0, NULL_PTR);
3450 for (; pl; pl = pl->next)
3452 do_spec_1 ("-isystem", 1, NULL_PTR);
3453 /* Make this a separate argument. */
3454 do_spec_1 (" ", 0, NULL_PTR);
3455 do_spec_1 (pl->prefix, 1, NULL_PTR);
3456 do_spec_1 (" ", 0, NULL_PTR);
3462 for (i = 0; i < n_infiles; i++)
3463 store_arg (outfiles[i], 0, 0);
3467 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3472 this_is_library_file = 1;
3476 this_is_output_file = 1;
3481 int cur_index = argbuf_index;
3482 /* Handle the {...} following the %W. */
3485 p = handle_braces (p + 1);
3488 /* If any args were output, mark the last one for deletion
3490 if (argbuf_index != cur_index)
3491 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3495 /* %x{OPTION} records OPTION for %X to output. */
3501 /* Skip past the option value and make a copy. */
3506 string = save_string (p1 + 1, p - p1 - 2);
3508 /* See if we already recorded this option. */
3509 for (i = 0; i < n_linker_options; i++)
3510 if (! strcmp (string, linker_options[i]))
3516 /* This option is new; add it. */
3518 if (!linker_options)
3520 = (char **) xmalloc (n_linker_options * sizeof (char **));
3523 = (char **) xrealloc (linker_options,
3524 n_linker_options * sizeof (char **));
3526 linker_options[n_linker_options - 1] = string;
3530 /* Dump out the options accumulated previously using %x. */
3532 for (i = 0; i < n_linker_options; i++)
3534 do_spec_1 (linker_options[i], 1, NULL_PTR);
3535 /* Make each accumulated option a separate argument. */
3536 do_spec_1 (" ", 0, NULL_PTR);
3540 /* Dump out the options accumulated previously using -Wa,. */
3542 for (i = 0; i < n_assembler_options; i++)
3544 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3545 /* Make each accumulated option a separate argument. */
3546 do_spec_1 (" ", 0, NULL_PTR);
3550 /* Dump out the options accumulated previously using -Wp,. */
3552 for (i = 0; i < n_preprocessor_options; i++)
3554 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3555 /* Make each accumulated option a separate argument. */
3556 do_spec_1 (" ", 0, NULL_PTR);
3560 /* Here are digits and numbers that just process
3561 a certain constant string as a spec. */
3564 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3570 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3576 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3582 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3588 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3594 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3600 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3606 value = do_spec_1 (link_spec, 0, NULL_PTR);
3612 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3618 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3625 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3629 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3633 if (! strncmp (y, "-D", 2))
3634 /* Copy the whole option. */
3635 while (*y && *y != ' ' && *y != '\t')
3637 else if (*y == ' ' || *y == '\t')
3638 /* Copy whitespace to the result. */
3640 /* Don't copy other options. */
3647 value = do_spec_1 (buf, 0, NULL_PTR);
3655 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3659 /* Copy all of CPP_PREDEFINES into BUF,
3660 but put __ after every -D and at the end of each arg. */
3664 if (! strncmp (y, "-D", 2))
3672 || (*(y+1) != '_' && ! isupper (*(y+1))))
3674 /* Stick __ at front of macro name. */
3677 /* Arrange to stick __ at the end as well. */
3681 /* Copy the macro name. */
3682 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3691 /* Copy the value given, if any. */
3692 while (*y && *y != ' ' && *y != '\t')
3695 else if (*y == ' ' || *y == '\t')
3696 /* Copy whitespace to the result. */
3698 /* Don't copy -A options */
3704 /* Copy all of CPP_PREDEFINES into BUF,
3705 but put __ after every -D. */
3709 if (! strncmp (y, "-D", 2))
3714 || (*(y+1) != '_' && ! isupper (*(y+1))))
3716 /* Stick -D__ at front of macro name. */
3722 /* Copy the macro name. */
3723 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3726 /* Copy the value given, if any. */
3727 while (*y && *y != ' ' && *y != '\t')
3732 /* Do not copy this macro - we have just done it before */
3733 while (*y && *y != ' ' && *y != '\t')
3737 else if (*y == ' ' || *y == '\t')
3738 /* Copy whitespace to the result. */
3740 /* Don't copy -A options */
3746 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3750 if (! strncmp (y, "-A", 2))
3751 /* Copy the whole option. */
3752 while (*y && *y != ' ' && *y != '\t')
3754 else if (*y == ' ' || *y == '\t')
3755 /* Copy whitespace to the result. */
3757 /* Don't copy other options. */
3764 value = do_spec_1 (buf, 0, NULL_PTR);
3771 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3776 /* Here we define characters other than letters and digits. */
3779 p = handle_braces (p);
3785 obstack_1grow (&obstack, '%');
3789 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3790 do_spec_1 (" ", 0, NULL_PTR);
3793 /* Process a string found as the value of a spec given by name.
3794 This feature allows individual machine descriptions
3795 to add and use their own specs.
3796 %[...] modifies -D options the way %P does;
3797 %(...) uses the spec unmodified. */
3802 struct spec_list *sl;
3805 /* The string after the S/P is the name of a spec that is to be
3807 while (*p && *p != ')' && *p != ']')
3810 /* See if it's in the list */
3811 for (len = p - name, sl = specs; sl; sl = sl->next)
3812 if (sl->name_len == len && !strncmp (sl->name, name, len))
3814 name = *(sl->ptr_spec);
3816 fprintf (stderr, "Processing spec %c%s%c, which is '%s'\n",
3817 c, sl->name, (c == '(') ? ')' : ']', name);
3826 value = do_spec_1 (name, 0, NULL_PTR);
3832 char *x = (char *) alloca (strlen (name) * 2 + 1);
3836 /* Copy all of NAME into BUF, but put __ after
3837 every -D and at the end of each arg, */
3842 if (! strncmp (y, "-D", 2))
3852 else if (flag && (*y == ' ' || *y == '\t' || *y == '='
3853 || *y == '}' || *y == 0))
3866 value = do_spec_1 (buf, 0, NULL_PTR);
3872 /* Discard the closing paren or bracket. */
3880 int c1 = *p++; /* Select first or second version number. */
3881 char *v = compiler_version;
3884 /* The format of the version string is
3885 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3887 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3888 while (! isdigit (*v))
3890 if (v > compiler_version && v[-1] != '-')
3893 /* If desired, advance to second version number. */
3896 /* Set V after the first period. */
3897 while (isdigit (*v))
3904 /* Set Q at the next period or at the end. */
3906 while (isdigit (*q))
3908 if (*q != 0 && *q != ' ' && *q != '.' && *q != '-')
3911 /* Put that part into the command. */
3912 obstack_grow (&obstack, v, q - v);
3918 if (input_from_pipe)
3919 do_spec_1 ("-", 0, NULL_PTR);
3928 /* Backslash: treat next character as ordinary. */
3933 /* Ordinary character: put it into the current argument. */
3934 obstack_1grow (&obstack, c);
3938 return 0; /* End of string */
3941 /* Return 0 if we call do_spec_1 and that returns -1. */
3952 int include_blanks = 1;
3955 /* A '^' after the open-brace means to not give blanks before args. */
3956 include_blanks = 0, ++p;
3959 /* A `|' after the open-brace means,
3960 if the test fails, output a single minus sign rather than nothing.
3961 This is used in %{|!pipe:...}. */
3965 /* A `!' after the open-brace negates the condition:
3966 succeed if the specified switch is not present. */
3970 /* A `.' after the open-brace means test against the current suffix. */
3980 while (*p != ':' && *p != '}') p++;
3983 register int count = 1;
4001 int found = (input_suffix != 0
4002 && strlen (input_suffix) == p - filter
4003 && strncmp (input_suffix, filter, p - filter) == 0);
4009 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
4014 else if (p[-1] == '*' && p[0] == '}')
4016 /* Substitute all matching switches as separate args. */
4019 for (i = 0; i < n_switches; i++)
4020 if (!strncmp (switches[i].part1, filter, p - filter)
4021 && check_live_switch (i, p - filter))
4022 give_switch (i, 0, include_blanks);
4026 /* Test for presence of the specified switch. */
4030 /* If name specified ends in *, as in {x*:...},
4031 check for %* and handle that case. */
4032 if (p[-1] == '*' && !negate)
4037 /* First see whether we have %*. */
4041 if (*r == '%' && r[1] == '*')
4045 /* If we do, handle that case. */
4048 /* Substitute all matching switches as separate args.
4049 But do this by substituting for %*
4050 in the text that follows the colon. */
4052 unsigned hard_match_len = p - filter - 1;
4053 char *string = save_string (p + 1, q - p - 2);
4055 for (i = 0; i < n_switches; i++)
4056 if (!strncmp (switches[i].part1, filter, hard_match_len)
4057 && check_live_switch (i, -1))
4059 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
4060 /* Pass any arguments this switch has. */
4061 give_switch (i, 1, 1);
4068 /* If name specified ends in *, as in {x*:...},
4069 check for presence of any switch name starting with x. */
4072 for (i = 0; i < n_switches; i++)
4074 unsigned hard_match_len = p - filter - 1;
4076 if (!strncmp (switches[i].part1, filter, hard_match_len)
4077 && check_live_switch (i, hard_match_len))
4083 /* Otherwise, check for presence of exact name specified. */
4086 for (i = 0; i < n_switches; i++)
4088 if (!strncmp (switches[i].part1, filter, p - filter)
4089 && switches[i].part1[p - filter] == 0
4090 && check_live_switch (i, -1))
4098 /* If it is as desired (present for %{s...}, absent for %{-s...})
4099 then substitute either the switch or the specified
4100 conditional text. */
4101 if (present != negate)
4105 give_switch (i, 0, include_blanks);
4109 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
4115 /* Here if a %{|...} conditional fails: output a minus sign,
4116 which means "standard output" or "standard input". */
4117 do_spec_1 ("-", 0, NULL_PTR);
4124 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4125 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4126 spec, or -1 if either exact match or %* is used.
4128 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4129 whose value does not begin with "no-" is obsoleted by the same value
4130 with the "no-", similarly for a switch with the "no-" prefix. */
4133 check_live_switch (switchnum, prefix_length)
4137 char *name = switches[switchnum].part1;
4140 /* In the common case of {<at-most-one-letter>*}, a negating
4141 switch would always match, so ignore that case. We will just
4142 send the conflicting switches to the compiler phase. */
4143 if (prefix_length >= 0 && prefix_length <= 1)
4146 /* If we already processed this switch and determined if it was
4147 live or not, return our past determination. */
4148 if (switches[switchnum].live_cond != 0)
4149 return switches[switchnum].live_cond > 0;
4151 /* Now search for duplicate in a manner that depends on the name. */
4155 for (i = switchnum + 1; i < n_switches; i++)
4156 if (switches[i].part1[0] == 'O')
4158 switches[switchnum].valid = 1;
4159 switches[switchnum].live_cond = -1;
4164 case 'W': case 'f': case 'm':
4165 if (! strncmp (name + 1, "no-", 3))
4167 /* We have Xno-YYY, search for XYYY. */
4168 for (i = switchnum + 1; i < n_switches; i++)
4169 if (switches[i].part1[0] == name[0]
4170 && ! strcmp (&switches[i].part1[1], &name[4]))
4172 switches[switchnum].valid = 1;
4173 switches[switchnum].live_cond = -1;
4179 /* We have XYYY, search for Xno-YYY. */
4180 for (i = switchnum + 1; i < n_switches; i++)
4181 if (switches[i].part1[0] == name[0]
4182 && switches[i].part1[1] == 'n'
4183 && switches[i].part1[2] == 'o'
4184 && switches[i].part1[3] == '-'
4185 && !strcmp (&switches[i].part1[4], &name[1]))
4187 switches[switchnum].valid = 1;
4188 switches[switchnum].live_cond = -1;
4195 /* Otherwise the switch is live. */
4196 switches[switchnum].live_cond = 1;
4200 /* Pass a switch to the current accumulating command
4201 in the same form that we received it.
4202 SWITCHNUM identifies the switch; it is an index into
4203 the vector of switches gcc received, which is `switches'.
4204 This cannot fail since it never finishes a command line.
4206 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4208 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
4212 give_switch (switchnum, omit_first_word, include_blanks)
4214 int omit_first_word;
4217 if (!omit_first_word)
4219 do_spec_1 ("-", 0, NULL_PTR);
4220 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4223 if (switches[switchnum].args != 0)
4226 for (p = switches[switchnum].args; *p; p++)
4229 do_spec_1 (" ", 0, NULL_PTR);
4230 do_spec_1 (*p, 1, NULL_PTR);
4234 do_spec_1 (" ", 0, NULL_PTR);
4235 switches[switchnum].valid = 1;
4238 /* Search for a file named NAME trying various prefixes including the
4239 user's -B prefix and some standard ones.
4240 Return the absolute file name found. If nothing is found, return NAME. */
4248 /* Try multilib_dir if it is defined. */
4249 if (multilib_dir != NULL)
4253 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4254 strcpy (try, multilib_dir);
4255 strcat (try, dir_separator_str);
4258 newname = find_a_file (&startfile_prefixes, try, R_OK);
4260 /* If we don't find it in the multi library dir, then fall
4261 through and look for it in the normal places. */
4262 if (newname != NULL)
4266 newname = find_a_file (&startfile_prefixes, name, R_OK);
4267 return newname ? newname : name;
4270 /* Determine whether a directory exists. If LINKER, return 0 for
4271 certain fixed names not needed by the linker. If not LINKER, it is
4272 only important to return 0 if the host machine has a small ARG_MAX
4276 is_directory (path1, path2, linker)
4281 int len1 = strlen (path1);
4282 int len2 = strlen (path2);
4283 char *path = (char *) alloca (3 + len1 + len2);
4287 #ifndef SMALL_ARG_MAX
4292 /* Construct the path from the two parts. Ensure the string ends with "/.".
4293 The resulting path will be a directory even if the given path is a
4295 bcopy (path1, path, len1);
4296 bcopy (path2, path + len1, len2);
4297 cp = path + len1 + len2;
4298 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4299 *cp++ = DIR_SEPARATOR;
4303 /* Exclude directories that the linker is known to search. */
4306 && strcmp (path, concat (dir_separator_str, "lib",
4307 dir_separator_str, ".", NULL_PTR)) == 0)
4309 && strcmp (path, concat (dir_separator_str, "usr",
4310 dir_separator_str, "lib",
4311 dir_separator_str, ".", NULL_PTR)) == 0)))
4314 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4317 /* On fatal signals, delete all the temporary files. */
4320 fatal_error (signum)
4323 signal (signum, SIG_DFL);
4324 delete_failure_queue ();
4325 delete_temp_files ();
4326 /* Get the same signal again, this time not handled,
4327 so its normal effect occurs. */
4328 kill (getpid (), signum);
4339 int linker_was_run = 0;
4340 char *explicit_link_files;
4343 struct user_specs *uptr;
4345 p = argv[0] + strlen (argv[0]);
4346 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4349 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4350 signal (SIGINT, fatal_error);
4352 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4353 signal (SIGHUP, fatal_error);
4355 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4356 signal (SIGTERM, fatal_error);
4358 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4359 signal (SIGPIPE, fatal_error);
4363 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4365 obstack_init (&obstack);
4367 /* Build multilib_select, et. al from the separate lines that make up each
4368 multilib selection. */
4370 char **q = multilib_raw;
4373 obstack_init (&multilib_obstack);
4374 while ((p = *q++) != (char *) 0)
4375 obstack_grow (&multilib_obstack, p, strlen (p));
4377 obstack_1grow (&multilib_obstack, 0);
4378 multilib_select = obstack_finish (&multilib_obstack);
4380 q = multilib_matches_raw;
4381 while ((p = *q++) != (char *) 0)
4382 obstack_grow (&multilib_obstack, p, strlen (p));
4384 obstack_1grow (&multilib_obstack, 0);
4385 multilib_matches = obstack_finish (&multilib_obstack);
4389 i < sizeof (multilib_defaults_raw) / sizeof (multilib_defaults_raw[0]);
4393 obstack_1grow (&multilib_obstack, ' ');
4394 obstack_grow (&multilib_obstack,
4395 multilib_defaults_raw[i],
4396 strlen (multilib_defaults_raw[i]));
4400 obstack_1grow (&multilib_obstack, 0);
4401 multilib_defaults = obstack_finish (&multilib_obstack);
4404 /* Set up to remember the pathname of gcc and any options
4405 needed for collect. We use argv[0] instead of programname because
4406 we need the complete pathname. */
4407 obstack_init (&collect_obstack);
4408 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4409 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4410 putenv (obstack_finish (&collect_obstack));
4412 #ifdef INIT_ENVIRONMENT
4413 /* Set up any other necessary machine specific environment variables. */
4414 putenv (INIT_ENVIRONMENT);
4417 /* Choose directory for temp files. */
4419 temp_filename = choose_temp_base ();
4420 temp_filename_length = strlen (temp_filename);
4422 /* Make a table of what switches there are (switches, n_switches).
4423 Make a table of specified input files (infiles, n_infiles).
4424 Decode switches that are handled locally. */
4426 process_command (argc, argv);
4432 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4434 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4435 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4438 for (i = 0; i < n_switches; i++)
4443 obstack_grow (&collect_obstack, " ", 1);
4446 obstack_grow (&collect_obstack, "'-", 2);
4447 q = switches[i].part1;
4448 while (p = (char *) index (q,'\''))
4450 obstack_grow (&collect_obstack, q, p-q);
4451 obstack_grow (&collect_obstack, "'\\''", 4);
4454 obstack_grow (&collect_obstack, q, strlen (q));
4455 obstack_grow (&collect_obstack, "'", 1);
4457 for (args = switches[i].args; args && *args; args++)
4459 obstack_grow (&collect_obstack, " '", 2);
4461 while (p = (char *) index (q,'\''))
4463 obstack_grow (&collect_obstack, q, p-q);
4464 obstack_grow (&collect_obstack, "'\\''", 4);
4467 obstack_grow (&collect_obstack, q, strlen (q));
4468 obstack_grow (&collect_obstack, "'", 1);
4471 obstack_grow (&collect_obstack, "\0", 1);
4472 putenv (obstack_finish (&collect_obstack));
4475 /* Initialize the vector of specs to just the default.
4476 This means one element containing 0s, as a terminator. */
4478 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4479 bcopy ((char *) default_compilers, (char *) compilers,
4480 sizeof default_compilers);
4481 n_compilers = n_default_compilers;
4483 /* Read specs from a file if there is one. */
4485 machine_suffix = concat (spec_machine, dir_separator_str,
4486 spec_version, dir_separator_str, NULL_PTR);
4487 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
4489 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4490 /* Read the specs file unless it is a default one. */
4491 if (specs_file != 0 && strcmp (specs_file, "specs"))
4492 read_specs (specs_file, TRUE);
4496 /* We need to check standard_exec_prefix/just_machine_suffix/specs
4497 for any override of as, ld and libraries. */
4498 specs_file = (char *) alloca (strlen (standard_exec_prefix)
4499 + strlen (just_machine_suffix)
4500 + sizeof ("specs"));
4502 strcpy (specs_file, standard_exec_prefix);
4503 strcat (specs_file, just_machine_suffix);
4504 strcat (specs_file, "specs");
4505 if (access (specs_file, R_OK) == 0)
4506 read_specs (specs_file, TRUE);
4508 /* Process any user specified specs in the order given on the command
4510 for (uptr = user_specs_head; uptr; uptr = uptr->next)
4512 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
4513 read_specs (filename ? filename : uptr->filename, FALSE);
4516 /* If not cross-compiling, look for startfiles in the standard places. */
4517 /* The fact that these are done here, after reading the specs file,
4518 means that it cannot be found in these directories.
4519 But that's okay. It should never be there anyway. */
4520 if (*cross_compile == '0')
4522 #ifdef MD_EXEC_PREFIX
4523 add_prefix (&exec_prefixes, md_exec_prefix, "GCC", 0, 0, NULL_PTR);
4524 add_prefix (&startfile_prefixes, md_exec_prefix, "GCC", 0, 0, NULL_PTR);
4527 #ifdef MD_STARTFILE_PREFIX
4528 add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC",
4532 #ifdef MD_STARTFILE_PREFIX_1
4533 add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC",
4537 /* If standard_startfile_prefix is relative, base it on
4538 standard_exec_prefix. This lets us move the installed tree
4539 as a unit. If GCC_EXEC_PREFIX is defined, base
4540 standard_startfile_prefix on that as well. */
4541 if (*standard_startfile_prefix == '/'
4542 || *standard_startfile_prefix == DIR_SEPARATOR)
4543 add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS",
4547 if (gcc_exec_prefix)
4548 add_prefix (&startfile_prefixes,
4549 concat (gcc_exec_prefix, machine_suffix,
4550 standard_startfile_prefix, NULL_PTR),
4551 NULL_PTR, 0, 0, NULL_PTR);
4552 add_prefix (&startfile_prefixes,
4553 concat (standard_exec_prefix,
4555 standard_startfile_prefix, NULL_PTR),
4556 NULL_PTR, 0, 0, NULL_PTR);
4559 add_prefix (&startfile_prefixes, standard_startfile_prefix_1,
4560 "BINUTILS", 0, 0, NULL_PTR);
4561 add_prefix (&startfile_prefixes, standard_startfile_prefix_2,
4562 "BINUTILS", 0, 0, NULL_PTR);
4563 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4564 add_prefix (&startfile_prefixes, "./", NULL_PTR, 0, 1, NULL_PTR);
4569 if (*standard_startfile_prefix != DIR_SEPARATOR && gcc_exec_prefix)
4570 add_prefix (&startfile_prefixes,
4571 concat (gcc_exec_prefix, machine_suffix,
4572 standard_startfile_prefix, NULL_PTR),
4573 "BINUTILS", 0, 0, NULL_PTR);
4576 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4577 if (gcc_exec_prefix)
4579 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
4580 + strlen (spec_version)
4581 + strlen (spec_machine) + 3);
4582 strcpy (temp, gcc_exec_prefix);
4583 strcat (temp, spec_machine);
4584 strcat (temp, dir_separator_str);
4585 strcat (temp, spec_version);
4586 strcat (temp, dir_separator_str);
4587 gcc_exec_prefix = temp;
4590 /* Now we have the specs.
4591 Set the `valid' bits for switches that match anything in any spec. */
4593 validate_all_switches ();
4595 /* Now that we have the switches and the specs, set
4596 the subdirectory based on the options. */
4597 set_multilib_dir ();
4599 /* Warn about any switches that no pass was interested in. */
4601 for (i = 0; i < n_switches; i++)
4602 if (! switches[i].valid)
4603 error ("unrecognized option `-%s'", switches[i].part1);
4605 /* Obey some of the options. */
4607 if (print_search_dirs)
4609 printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
4610 printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
4611 printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
4615 if (print_file_name)
4617 printf ("%s\n", find_file (print_file_name));
4621 if (print_prog_name)
4623 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4624 printf ("%s\n", (newname ? newname : print_prog_name));
4628 if (print_multi_lib)
4630 print_multilib_info ();
4634 if (print_multi_directory)
4636 if (multilib_dir == NULL)
4639 printf ("%s\n", multilib_dir);
4647 /* compiler_version is truncated at the first space when initialized
4648 from version string, so truncate version_string at the first space
4649 before comparing. */
4650 for (n = 0; version_string[n]; n++)
4651 if (version_string[n] == ' ')
4654 if (! strncmp (version_string, compiler_version, n)
4655 && compiler_version[n] == 0)
4656 fprintf (stderr, "gcc version %s\n", version_string);
4658 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4659 version_string, compiler_version);
4666 fatal ("No input files");
4668 /* Make a place to record the compiler output file names
4669 that correspond to the input files. */
4671 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4672 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4674 /* Record which files were specified explicitly as link input. */
4676 explicit_link_files = xmalloc (n_infiles);
4677 bzero (explicit_link_files, n_infiles);
4679 for (i = 0; i < n_infiles; i++)
4681 register struct compiler *cp = 0;
4682 int this_file_error = 0;
4684 /* Tell do_spec what to substitute for %i. */
4686 input_filename = infiles[i].name;
4687 input_filename_length = strlen (input_filename);
4688 input_file_number = i;
4690 /* Use the same thing in %o, unless cp->spec says otherwise. */
4692 outfiles[i] = input_filename;
4694 /* Figure out which compiler from the file's suffix. */
4696 cp = lookup_compiler (infiles[i].name, input_filename_length,
4697 infiles[i].language);
4701 /* Ok, we found an applicable compiler. Run its spec. */
4702 /* First say how much of input_filename to substitute for %b */
4706 if (cp->spec[0][0] == '#')
4707 error ("%s: %s compiler not installed on this system",
4708 input_filename, &cp->spec[0][1]);
4710 input_basename = input_filename;
4711 for (p = input_filename; *p; p++)
4712 if (*p == '/' || *p == DIR_SEPARATOR)
4713 input_basename = p + 1;
4715 /* Find a suffix starting with the last period,
4716 and set basename_length to exclude that suffix. */
4717 basename_length = strlen (input_basename);
4718 p = input_basename + basename_length;
4719 while (p != input_basename && *p != '.') --p;
4720 if (*p == '.' && p != input_basename)
4722 basename_length = p - input_basename;
4723 input_suffix = p + 1;
4729 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4731 len += strlen (cp->spec[j]);
4733 p = (char *) xmalloc (len + 1);
4736 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4739 strcpy (p + len, cp->spec[j]);
4740 len += strlen (cp->spec[j]);
4743 value = do_spec (p);
4746 this_file_error = 1;
4749 /* If this file's name does not contain a recognized suffix,
4750 record it as explicit linker input. */
4753 explicit_link_files[i] = 1;
4755 /* Clear the delete-on-failure queue, deleting the files in it
4756 if this compilation failed. */
4758 if (this_file_error)
4760 delete_failure_queue ();
4763 /* If this compilation succeeded, don't delete those files later. */
4764 clear_failure_queue ();
4767 /* Run ld to link all the compiler output files. */
4769 if (error_count == 0)
4771 int tmp = execution_count;
4775 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4777 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
4778 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
4780 value = do_spec (link_command_spec);
4783 linker_was_run = (tmp != execution_count);
4786 /* Warn if a -B option was specified but the prefix was never used. */
4787 unused_prefix_warnings (&exec_prefixes);
4788 unused_prefix_warnings (&startfile_prefixes);
4790 /* If options said don't run linker,
4791 complain about input files to be given to the linker. */
4793 if (! linker_was_run && error_count == 0)
4794 for (i = 0; i < n_infiles; i++)
4795 if (explicit_link_files[i])
4796 error ("%s: linker input file unused since linking not done",
4799 /* Delete some or all of the temporary files we made. */
4802 delete_failure_queue ();
4803 delete_temp_files ();
4805 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4810 /* Find the proper compilation spec for the file name NAME,
4811 whose length is LENGTH. LANGUAGE is the specified language,
4812 or 0 if none specified. */
4814 static struct compiler *
4815 lookup_compiler (name, length, language)
4820 struct compiler *cp;
4822 /* Look for the language, if one is spec'd. */
4825 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4829 if (cp->suffix[0] == '@'
4830 && !strcmp (cp->suffix + 1, language))
4834 error ("language %s not recognized", language);
4837 /* Look for a suffix. */
4838 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4840 if (/* The suffix `-' matches only the file name `-'. */
4841 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4843 (strlen (cp->suffix) < length
4844 /* See if the suffix matches the end of NAME. */
4846 && (!strcmp (cp->suffix,
4847 name + length - strlen (cp->suffix))
4848 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4849 && !strcasecmp (cp->suffix,
4850 name + length - strlen (cp->suffix)))))
4852 && !strcmp (cp->suffix,
4853 name + length - strlen (cp->suffix))))
4856 if (cp->spec[0][0] == '@')
4858 struct compiler *new;
4859 /* An alias entry maps a suffix to a language.
4860 Search for the language; pass 0 for NAME and LENGTH
4861 to avoid infinite recursion if language not found.
4862 Construct the new compiler spec. */
4863 language = cp->spec[0] + 1;
4864 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4865 new->suffix = cp->suffix;
4866 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4867 (char *) new->spec, sizeof new->spec);
4870 /* A non-alias entry: return it. */
4882 register char *value = (char *) malloc (size);
4884 fatal ("virtual memory exhausted");
4889 xrealloc (ptr, size)
4893 register char *value = (char *) realloc (ptr, size);
4895 fatal ("virtual memory exhausted");
4899 /* This function is based on the one in libiberty. */
4902 concat VPROTO((char *first, ...))
4904 register int length;
4905 register char *newstr;
4913 /* First compute the size of the result and get sufficient memory. */
4915 VA_START (args, first);
4917 first = va_arg (args, char *);
4925 length += strlen (arg);
4926 arg = va_arg (args, char *);
4929 newstr = (char *) xmalloc (length + 1);
4932 /* Now copy the individual pieces to the result string. */
4934 VA_START (args, first);
4936 first = va_arg (args, char *);
4945 arg = va_arg (args, char *);
4954 save_string (s, len)
4958 register char *result = xmalloc (len + 1);
4960 bcopy (s, result, len);
4966 pfatal_with_name (name)
4969 fatal ("%s: %s", name, my_strerror (errno));
4973 perror_with_name (name)
4976 error ("%s: %s", name, my_strerror (errno));
4980 pfatal_pexecute (errmsg_fmt, errmsg_arg)
4986 /* Space for trailing '\0' is in %s. */
4987 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
4988 sprintf (msg, errmsg_fmt, errmsg_arg);
4992 fatal ("%s: %s", errmsg_fmt, my_strerror (errno));
4995 /* More 'friendly' abort that prints the line and file.
4996 config.h can #define abort fancy_abort if you like that sort of thing. */
5001 fatal ("Internal gcc abort.");
5006 /* Output an error message and exit */
5009 fatal VPROTO((char *format, ...))
5016 VA_START (ap, format);
5019 format = va_arg (ap, char *);
5022 fprintf (stderr, "%s: ", programname);
5023 vfprintf (stderr, format, ap);
5025 fprintf (stderr, "\n");
5026 delete_temp_files ();
5031 error VPROTO((char *format, ...))
5038 VA_START (ap, format);
5041 format = va_arg (ap, char *);
5044 fprintf (stderr, "%s: ", programname);
5045 vfprintf (stderr, format, ap);
5048 fprintf (stderr, "\n");
5051 #else /* not HAVE_VPRINTF */
5054 fatal (msg, arg1, arg2)
5055 char *msg, *arg1, *arg2;
5057 error (msg, arg1, arg2);
5058 delete_temp_files ();
5063 error (msg, arg1, arg2)
5064 char *msg, *arg1, *arg2;
5066 fprintf (stderr, "%s: ", programname);
5067 fprintf (stderr, msg, arg1, arg2);
5068 fprintf (stderr, "\n");
5071 #endif /* not HAVE_VPRINTF */
5075 validate_all_switches ()
5077 struct compiler *comp;
5080 struct spec_list *spec;
5082 for (comp = compilers; comp->spec[0]; comp++)
5085 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
5089 if (c == '%' && *p == '{')
5090 /* We have a switch spec. */
5091 validate_switches (p + 1);
5095 /* look through the linked list of specs read from the specs file */
5096 for (spec = specs; spec ; spec = spec->next)
5098 p = *(spec->ptr_spec);
5100 if (c == '%' && *p == '{')
5101 /* We have a switch spec. */
5102 validate_switches (p + 1);
5105 p = link_command_spec;
5107 if (c == '%' && *p == '{')
5108 /* We have a switch spec. */
5109 validate_switches (p + 1);
5112 /* Look at the switch-name that comes after START
5113 and mark as valid all supplied switches that match it. */
5116 validate_switches (start)
5119 register char *p = start;
5134 while (*p != ':' && *p != '}') p++;
5138 else if (p[-1] == '*')
5140 /* Mark all matching switches as valid. */
5142 for (i = 0; i < n_switches; i++)
5143 if (!strncmp (switches[i].part1, filter, p - filter))
5144 switches[i].valid = 1;
5148 /* Mark an exact matching switch as valid. */
5149 for (i = 0; i < n_switches; i++)
5151 if (!strncmp (switches[i].part1, filter, p - filter)
5152 && switches[i].part1[p - filter] == 0)
5153 switches[i].valid = 1;
5158 /* Check whether a particular argument was used. The first time we
5159 canonicalize the switches to keep only the ones we care about. */
5173 static struct mswitchstr *mswitches;
5174 static int n_mswitches;
5179 struct mswitchstr *matches;
5183 /* Break multilib_matches into the component strings of string and replacement
5185 for (q = multilib_matches; *q != '\0'; q++)
5189 matches = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
5191 q = multilib_matches;
5202 matches[i].len = q - matches[i].str;
5204 matches[i].replace = ++q;
5205 while (*q != ';' && *q != '\0')
5211 matches[i].rep_len = q - matches[i].replace;
5219 /* Now build a list of the replacement string for switches that we care
5220 about. Make sure we allocate at least one entry. This prevents
5221 xmalloc from calling fatal, and prevents us from re-executing this
5224 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
5225 * (n_switches ? n_switches : 1));
5226 for (i = 0; i < n_switches; i++)
5228 int xlen = strlen (switches[i].part1);
5229 for (j = 0; j < cnt; j++)
5230 if (xlen == matches[j].len && ! strcmp (switches[i].part1, matches[j].str))
5232 mswitches[n_mswitches].str = matches[j].replace;
5233 mswitches[n_mswitches].len = matches[j].rep_len;
5234 mswitches[n_mswitches].replace = (char *)0;
5235 mswitches[n_mswitches].rep_len = 0;
5242 for (i = 0; i < n_mswitches; i++)
5243 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
5250 default_arg (p, len)
5257 for (start = multilib_defaults; *start != '\0'; start = end+1)
5259 while (*start == ' ' || *start == '\t')
5265 for (end = start+1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
5268 if ((end - start) == len && strncmp (p, start, len) == 0)
5275 /* Work out the subdirectory to use based on the
5276 options. The format of multilib_select is a list of elements.
5277 Each element is a subdirectory name followed by a list of options
5278 followed by a semicolon. gcc will consider each line in turn. If
5279 none of the options beginning with an exclamation point are
5280 present, and all of the other options are present, that
5281 subdirectory will be used. */
5286 char *p = multilib_select;
5288 char *this_path, *this_arg;
5294 /* Ignore newlines. */
5301 /* Get the initial path. */
5309 this_path_len = p - this_path;
5311 /* Check the arguments. */
5326 while (*p != ' ' && *p != ';')
5333 if (*this_arg != '!')
5341 /* If this is a default argument, we can just ignore it.
5342 This is true even if this_arg begins with '!'. Beginning
5343 with '!' does not mean that this argument is necessarily
5344 inappropriate for this library: it merely means that
5345 there is a more specific library which uses this
5346 argument. If this argument is a default, we need not
5347 consider that more specific library. */
5348 if (! default_arg (this_arg, p - this_arg))
5350 ok = used_arg (this_arg, p - this_arg);
5361 if (this_path_len != 1
5362 || this_path[0] != '.')
5364 multilib_dir = xmalloc (this_path_len + 1);
5365 strncpy (multilib_dir, this_path, this_path_len);
5366 multilib_dir[this_path_len] = '\0';
5375 /* Print out the multiple library subdirectory selection
5376 information. This prints out a series of lines. Each line looks
5377 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5378 required. Only the desired options are printed out, the negative
5379 matches. The options are print without a leading dash. There are
5380 no spaces to make it easy to use the information in the shell.
5381 Each subdirectory is printed only once. This assumes the ordering
5382 generated by the genmultilib script. */
5385 print_multilib_info ()
5387 char *p = multilib_select;
5388 char *last_path = 0, *this_path;
5390 int last_path_len = 0;
5394 /* Ignore newlines. */
5401 /* Get the initial path. */
5410 /* If this is a duplicate, skip it. */
5411 skip = (last_path != 0 && p - this_path == last_path_len
5412 && ! strncmp (last_path, this_path, last_path_len));
5414 last_path = this_path;
5415 last_path_len = p - this_path;
5417 /* If this directory requires any default arguments, we can skip
5418 it. We will already have printed a directory identical to
5419 this one which does not require that default argument. */
5437 while (*q != ' ' && *q != ';')
5445 && default_arg (arg, q - arg))
5460 for (p1 = last_path; p1 < p; p1++)
5479 use_arg = *p != '!';
5484 while (*p != ' ' && *p != ';')
5499 /* If there are extra options, print them now */
5500 if (multilib_extra && *multilib_extra)
5502 int print_at = TRUE;
5505 for (q = multilib_extra; *q != '\0'; q++)