1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
5 Free Software Foundation, Inc.
7 This file is part of GCC.
9 GCC is free software; you can redistribute it and/or modify it under
10 the terms of the GNU General Public License as published by the Free
11 Software Foundation; either version 3, or (at your option) any later
14 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
15 WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 You should have received a copy of the GNU General Public License
20 along with GCC; see the file COPYING3. If not see
21 <http://www.gnu.org/licenses/>. */
23 /* This program is the user interface to the C compiler and possibly to
24 other compilers. It is used because compilation is a complicated procedure
25 which involves running several programs and passing temporary files between
26 them, forwarding the users switches to those programs selectively,
27 and deleting the temporary files at the end.
29 CC recognizes how to compile each input file by suffixes in the file names.
30 Once it knows which kind of compilation to perform, the procedure for
31 compilation is specified by a string called a "spec". */
35 #include "coretypes.h"
36 #include "multilib.h" /* before tm.h */
39 #if ! defined( SIGCHLD ) && defined( SIGCLD )
40 # define SIGCHLD SIGCLD
47 #include "diagnostic.h"
53 # include <sys/mman.h>
55 /* This is on Solaris. */
56 # include <sys/types.h>
61 # define MAP_FAILED ((void *)-1)
64 /* By default there is no special suffix for target executables. */
65 /* FIXME: when autoconf is fixed, remove the host check - dj */
66 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
67 #define HAVE_TARGET_EXECUTABLE_SUFFIX
70 /* By default there is no special suffix for host executables. */
71 #ifdef HOST_EXECUTABLE_SUFFIX
72 #define HAVE_HOST_EXECUTABLE_SUFFIX
74 #define HOST_EXECUTABLE_SUFFIX ""
77 /* By default, the suffix for target object files is ".o". */
78 #ifdef TARGET_OBJECT_SUFFIX
79 #define HAVE_TARGET_OBJECT_SUFFIX
81 #define TARGET_OBJECT_SUFFIX ".o"
84 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
86 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
87 #ifndef LIBRARY_PATH_ENV
88 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
92 #define kill(p,s) raise(s)
95 /* If a stage of compilation returns an exit status >= 1,
96 compilation of that file ceases. */
98 #define MIN_FATAL_STATUS 1
100 /* Flag set by cppspec.c to 1. */
103 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
104 static bool at_file_supplied
;
106 /* Definition of string containing the arguments given to configure. */
107 #include "configargs.h"
109 /* Flag saying to print the command line options understood by gcc and its
112 static int print_help_list
;
114 /* Flag saying to print the version of gcc and its sub-processes. */
116 static int print_version
;
118 /* Flag indicating whether we should ONLY print the command and
119 arguments (like verbose_flag) without executing the command.
120 Displayed arguments are quoted so that the generated command
121 line is suitable for execution. This is intended for use in
122 shell scripts to capture the driver-generated command line. */
123 static int verbose_only_flag
;
125 /* Flag indicating how to print command line options of sub-processes. */
127 static int print_subprocess_help
;
129 /* Whether we should report subprocess execution times to a file. */
131 FILE *report_times_to_file
= NULL
;
133 /* Nonzero means place this string before uses of /, so that include
134 and library files can be found in an alternate location. */
136 #ifdef TARGET_SYSTEM_ROOT
137 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
139 static const char *target_system_root
= 0;
142 /* Nonzero means pass the updated target_system_root to the compiler. */
144 static int target_system_root_changed
;
146 /* Nonzero means append this string to target_system_root. */
148 static const char *target_sysroot_suffix
= 0;
150 /* Nonzero means append this string to target_system_root for headers. */
152 static const char *target_sysroot_hdrs_suffix
= 0;
154 /* Nonzero means write "temp" files in source directory
155 and use the source file's name in them, and don't delete them. */
157 static enum save_temps
{
158 SAVE_TEMPS_NONE
, /* no -save-temps */
159 SAVE_TEMPS_CWD
, /* -save-temps in current directory */
160 SAVE_TEMPS_OBJ
/* -save-temps in object directory */
163 /* Output file to use to get the object directory for -save-temps=obj */
164 static char *save_temps_prefix
= 0;
165 static size_t save_temps_length
= 0;
167 /* The compiler version. */
169 static const char *compiler_version
;
171 /* The target version. */
173 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
175 /* The target machine. */
177 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
179 /* Nonzero if cross-compiling.
180 When -b is used, the value comes from the `specs' file. */
182 #ifdef CROSS_DIRECTORY_STRUCTURE
183 static const char *cross_compile
= "1";
185 static const char *cross_compile
= "0";
188 /* Greatest exit code of sub-processes that has been encountered up to
190 static int greatest_status
= 1;
192 /* This is the obstack which we use to allocate many strings. */
194 static struct obstack obstack
;
196 /* This is the obstack to build an environment variable to pass to
197 collect2 that describes all of the relevant switches of what to
198 pass the compiler in building the list of pointers to constructors
201 static struct obstack collect_obstack
;
203 /* Forward declaration for prototypes. */
207 static void init_spec (void);
208 static void store_arg (const char *, int, int);
209 static void insert_wrapper (const char *);
210 static char *load_specs (const char *);
211 static void read_specs (const char *, int);
212 static void set_spec (const char *, const char *);
213 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
214 static char *build_search_list (const struct path_prefix
*, const char *,
216 static void xputenv (const char *);
217 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
219 static int access_check (const char *, int);
220 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
221 static void add_prefix (struct path_prefix
*, const char *, const char *,
223 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
224 const char *, int, int, int);
225 static char *skip_whitespace (char *);
226 static void delete_if_ordinary (const char *);
227 static void delete_temp_files (void);
228 static void delete_failure_queue (void);
229 static void clear_failure_queue (void);
230 static int check_live_switch (int, int);
231 static const char *handle_braces (const char *);
232 static inline bool input_suffix_matches (const char *, const char *);
233 static inline bool switch_matches (const char *, const char *, int);
234 static inline void mark_matching_switches (const char *, const char *, int);
235 static inline void process_marked_switches (void);
236 static const char *process_brace_body (const char *, const char *, const char *, int, int);
237 static const struct spec_function
*lookup_spec_function (const char *);
238 static const char *eval_spec_function (const char *, const char *);
239 static const char *handle_spec_function (const char *);
240 static char *save_string (const char *, int);
241 static void set_collect_gcc_options (void);
242 static int do_spec_1 (const char *, int, const char *);
243 static int do_spec_2 (const char *);
244 static void do_option_spec (const char *, const char *);
245 static void do_self_spec (const char *);
246 static const char *find_file (const char *);
247 static int is_directory (const char *, bool);
248 static const char *validate_switches (const char *);
249 static void validate_all_switches (void);
250 static inline void validate_switches_from_spec (const char *);
251 static void give_switch (int, int);
252 static int used_arg (const char *, int);
253 static int default_arg (const char *, int);
254 static void set_multilib_dir (void);
255 static void print_multilib_info (void);
256 static void perror_with_name (const char *);
257 static void display_help (void);
258 static void add_preprocessor_option (const char *, int);
259 static void add_assembler_option (const char *, int);
260 static void add_linker_option (const char *, int);
261 static void process_command (unsigned int, struct cl_decoded_option
*);
262 static int execute (void);
263 static void alloc_args (void);
264 static void clear_args (void);
265 static void fatal_signal (int);
266 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
267 static void init_gcc_specs (struct obstack
*, const char *, const char *,
270 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
271 static const char *convert_filename (const char *, int, int);
274 static const char *getenv_spec_function (int, const char **);
275 static const char *if_exists_spec_function (int, const char **);
276 static const char *if_exists_else_spec_function (int, const char **);
277 static const char *replace_outfile_spec_function (int, const char **);
278 static const char *remove_outfile_spec_function (int, const char **);
279 static const char *version_compare_spec_function (int, const char **);
280 static const char *include_spec_function (int, const char **);
281 static const char *find_file_spec_function (int, const char **);
282 static const char *find_plugindir_spec_function (int, const char **);
283 static const char *print_asm_header_spec_function (int, const char **);
284 static const char *compare_debug_dump_opt_spec_function (int, const char **);
285 static const char *compare_debug_self_opt_spec_function (int, const char **);
286 static const char *compare_debug_auxbase_opt_spec_function (int, const char **);
287 static const char *pass_through_libs_spec_func (int, const char **);
289 /* The Specs Language
291 Specs are strings containing lines, each of which (if not blank)
292 is made up of a program name, and arguments separated by spaces.
293 The program name must be exact and start from root, since no path
294 is searched and it is unreliable to depend on the current working directory.
295 Redirection of input or output is not supported; the subprograms must
296 accept filenames saying what files to read and write.
298 In addition, the specs can contain %-sequences to substitute variable text
299 or for conditional text. Here is a table of all defined %-sequences.
300 Note that spaces are not generated automatically around the results of
301 expanding these sequences; therefore, you can concatenate them together
302 or with constant text in a single argument.
304 %% substitute one % into the program name or argument.
305 %i substitute the name of the input file being processed.
306 %b substitute the basename of the input file being processed.
307 This is the substring up to (and not including) the last period
308 and not including the directory unless -save-temps was specified
309 to put temporaries in a different location.
310 %B same as %b, but include the file suffix (text after the last period).
312 substitute a file name that has suffix SUFFIX and is chosen
313 once per compilation, and mark the argument a la %d. To reduce
314 exposure to denial-of-service attacks, the file name is now
315 chosen in a way that is hard to predict even when previously
316 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
317 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
318 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
319 had been pre-processed. Previously, %g was simply substituted
320 with a file name chosen once per compilation, without regard
321 to any appended suffix (which was therefore treated just like
322 ordinary text), making such attacks more likely to succeed.
324 like %g, but if -pipe is in effect, expands simply to "-".
326 like %g, but if -pipe is in effect, expands to nothing. (We have both
327 %| and %m to accommodate differences between system assemblers; see
328 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
330 like %g, but generates a new temporary file name even if %uSUFFIX
333 substitutes the last file name generated with %uSUFFIX, generating a
334 new one if there is no such last file name. In the absence of any
335 %uSUFFIX, this is just like %gSUFFIX, except they don't share
336 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
337 would involve the generation of two distinct file names, one
338 for each `%g.s' and another for each `%U.s'. Previously, %U was
339 simply substituted with a file name chosen for the previous %u,
340 without regard to any appended suffix.
342 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
343 writable, and if save-temps is off; otherwise, substitute the name
344 of a temporary file, just like %u. This temporary file is not
345 meant for communication between processes, but rather as a junk
348 substitutes .SUFFIX for the suffixes of a matched switch's args when
349 it is subsequently output with %*. SUFFIX is terminated by the next
351 %d marks the argument containing or following the %d as a
352 temporary file name, so that that file will be deleted if GCC exits
353 successfully. Unlike %g, this contributes no text to the argument.
354 %w marks the argument containing or following the %w as the
355 "output file" of this compilation. This puts the argument
356 into the sequence of arguments that %o will substitute later.
357 %V indicates that this compilation produces no "output file".
359 like %{...} but mark last argument supplied within
360 as a file to be deleted on failure.
361 %o substitutes the names of all the output files, with spaces
362 automatically placed around them. You should write spaces
363 around the %o as well or the results are undefined.
364 %o is for use in the specs for running the linker.
365 Input files whose names have no recognized suffix are not compiled
366 at all, but they are included among the output files, so they will
368 %O substitutes the suffix for object files. Note that this is
369 handled specially when it immediately follows %g, %u, or %U
370 (with or without a suffix argument) because of the need for
371 those to form complete file names. The handling is such that
372 %O is treated exactly as if it had already been substituted,
373 except that %g, %u, and %U do not currently support additional
374 SUFFIX characters following %O as they would following, for
376 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
377 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
378 and -B options) and -imultilib as necessary.
379 %s current argument is the name of a library or startup file of some sort.
380 Search for that file in a standard list of directories
381 and substitute the full name found.
382 %eSTR Print STR as an error message. STR is terminated by a newline.
383 Use this when inconsistent options are detected.
384 %nSTR Print STR as a notice. STR is terminated by a newline.
385 %x{OPTION} Accumulate an option for %X.
386 %X Output the accumulated linker options specified by compilations.
387 %Y Output the accumulated assembler options specified by compilations.
388 %Z Output the accumulated preprocessor options specified by compilations.
389 %a process ASM_SPEC as a spec.
390 This allows config.h to specify part of the spec for running as.
391 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
392 used here. This can be used to run a post-processor after the
393 assembler has done its job.
394 %D Dump out a -L option for each directory in startfile_prefixes.
395 If multilib_dir is set, extra entries are generated with it affixed.
396 %l process LINK_SPEC as a spec.
397 %L process LIB_SPEC as a spec.
398 %G process LIBGCC_SPEC as a spec.
399 %R Output the concatenation of target_system_root and
400 target_sysroot_suffix.
401 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
402 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
403 %C process CPP_SPEC as a spec.
404 %1 process CC1_SPEC as a spec.
405 %2 process CC1PLUS_SPEC as a spec.
406 %* substitute the variable part of a matched option. (See below.)
407 Note that each comma in the substituted string is replaced by
409 %<S remove all occurrences of -S from the command line.
410 Note - this command is position dependent. % commands in the
411 spec string before this one will see -S, % commands in the
412 spec string after this one will not.
413 %<S* remove all occurrences of all switches beginning with -S from the
416 Call the named function FUNCTION, passing it ARGS. ARGS is
417 first processed as a nested spec string, then split into an
418 argument vector in the usual fashion. The function returns
419 a string which is processed as if it had appeared literally
420 as part of the current spec.
421 %{S} substitutes the -S switch, if that switch was given to GCC.
422 If that switch was not specified, this substitutes nothing.
423 Here S is a metasyntactic variable.
424 %{S*} substitutes all the switches specified to GCC whose names start
425 with -S. This is used for -o, -I, etc; switches that take
426 arguments. GCC considers `-o foo' as being one switch whose
427 name starts with `o'. %{o*} would substitute this text,
428 including the space; thus, two arguments would be generated.
429 %{S*&T*} likewise, but preserve order of S and T options (the order
430 of S and T in the spec is not significant). Can be any number
431 of ampersand-separated variables; for each the wild card is
432 optional. Useful for CPP as %{D*&U*&A*}.
434 %{S:X} substitutes X, if the -S switch was given to GCC.
435 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
436 %{S*:X} substitutes X if one or more switches whose names start
437 with -S was given to GCC. Normally X is substituted only
438 once, no matter how many such switches appeared. However,
439 if %* appears somewhere in X, then X will be substituted
440 once for each matching switch, with the %* replaced by the
441 part of that switch that matched the '*'.
442 %{.S:X} substitutes X, if processing a file with suffix S.
443 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
444 %{,S:X} substitutes X, if processing a file which will use spec S.
445 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
447 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
448 combined with '!', '.', ',', and '*' as above binding stronger
450 If %* appears in X, all of the alternatives must be starred, and
451 only the first matching alternative is substituted.
452 %{S:X; if S was given to GCC, substitutes X;
453 T:Y; else if T was given to GCC, substitutes Y;
454 :D} else substitutes D. There can be as many clauses as you need.
455 This may be combined with '.', '!', ',', '|', and '*' as above.
457 %(Spec) processes a specification defined in a specs file as *Spec:
458 %[Spec] as above, but put __ around -D arguments
460 The conditional text X in a %{S:X} or similar construct may contain
461 other nested % constructs or spaces, or even newlines. They are
462 processed as usual, as described above. Trailing white space in X is
463 ignored. White space may also appear anywhere on the left side of the
464 colon in these constructs, except between . or * and the corresponding
467 The -O, -f, -m, and -W switches are handled specifically in these
468 constructs. If another value of -O or the negated form of a -f, -m, or
469 -W switch is found later in the command line, the earlier switch
470 value is ignored, except with {S*} where S is just one letter; this
471 passes all matching options.
473 The character | at the beginning of the predicate text is used to indicate
474 that a command should be piped to the following command, but only if -pipe
477 Note that it is built into GCC which switches take arguments and which
478 do not. You might think it would be useful to generalize this to
479 allow each compiler's spec to say which switches take arguments. But
480 this cannot be done in a consistent fashion. GCC cannot even decide
481 which input files have been specified without knowing which switches
482 take arguments, and it must know which input files to compile in order
483 to tell which compilers to run.
485 GCC also knows implicitly that arguments starting in `-l' are to be
486 treated as compiler output files, and passed to the linker in their
487 proper position among the other output files. */
489 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
491 /* config.h can define ASM_SPEC to provide extra args to the assembler
492 or extra switch-translations. */
497 /* config.h can define ASM_FINAL_SPEC to run a post processor after
498 the assembler has run. */
499 #ifndef ASM_FINAL_SPEC
500 #define ASM_FINAL_SPEC ""
503 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
504 or extra switch-translations. */
509 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
510 or extra switch-translations. */
515 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
516 or extra switch-translations. */
518 #define CC1PLUS_SPEC ""
521 /* config.h can define LINK_SPEC to provide extra args to the linker
522 or extra switch-translations. */
527 /* config.h can define LIB_SPEC to override the default libraries. */
529 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
534 /* XXX: valid only for GNU ld */
535 /* XXX: should exactly match hooks provided by libmudflap.a */
536 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
537 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
538 --wrap=mmap --wrap=munmap --wrap=alloca\
539 } %{fmudflapth: --wrap=pthread_create\
540 }} %{fmudflap|fmudflapth: --wrap=main}"
543 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
546 /* When using -fsplit-stack we need to wrap pthread_create, in order
547 to initialize the stack guard. We always use wrapping, rather than
548 shared library ordering, and we keep the wrapper function in
549 libgcc. This is not yet a real spec, though it could become one;
550 it is currently just stuffed into LINK_SPEC. FIXME: This wrapping
551 only works with GNU ld and gold. FIXME: This is incompatible with
552 -fmudflap when linking statically, which wants to do its own
554 #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
556 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
559 #if defined(REAL_LIBGCC_SPEC)
560 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
561 #elif defined(LINK_LIBGCC_SPECIAL_1)
562 /* Have gcc do the search for libgcc.a. */
563 #define LIBGCC_SPEC "libgcc.a%s"
565 #define LIBGCC_SPEC "-lgcc"
569 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
570 #ifndef STARTFILE_SPEC
571 #define STARTFILE_SPEC \
572 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
575 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
577 #define ENDFILE_SPEC ""
581 #define LINKER_NAME "collect2"
584 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
585 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
590 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
592 #ifndef ASM_DEBUG_SPEC
593 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
594 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
595 # define ASM_DEBUG_SPEC \
596 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
597 ? "%{!g0:%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}}" ASM_MAP \
598 : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
600 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
601 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP
603 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
604 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP
608 #ifndef ASM_DEBUG_SPEC
609 # define ASM_DEBUG_SPEC ""
612 /* Here is the spec for running the linker, after compiling all files. */
614 /* This is overridable by the target in case they need to specify the
615 -lgcc and -lc order specially, yet not require them to override all
616 of LINK_COMMAND_SPEC. */
617 #ifndef LINK_GCC_C_SEQUENCE_SPEC
618 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
621 #ifndef LINK_SSP_SPEC
622 #ifdef TARGET_LIBC_PROVIDES_SSP
623 #define LINK_SSP_SPEC "%{fstack-protector:}"
625 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
629 #ifndef LINK_PIE_SPEC
631 #define LINK_PIE_SPEC "%{pie:-pie} "
633 #define LINK_PIE_SPEC "%{pie:} "
637 #ifndef LINK_BUILDID_SPEC
638 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
639 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
644 /* -u* was put back because both BSD and SysV seem to support it. */
645 /* %{static:} simply prevents an error message if the target machine
646 doesn't handle -static. */
647 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
648 scripts which exist in user specified directories, or in standard
650 /* We pass any -flto flags on to the linker, which is expected
651 to understand them. In practice, this means it had better be collect2. */
652 #ifndef LINK_COMMAND_SPEC
653 #define LINK_COMMAND_SPEC "\
654 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
656 %{fuse-linker-plugin: \
657 -plugin %(linker_plugin_file) \
658 -plugin-opt=%(lto_wrapper) \
659 -plugin-opt=-fresolution=%u.res \
660 %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \
662 %{flto*:%<fcompare-debug*} \
663 %{flto*} %l " LINK_PIE_SPEC \
664 "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
665 %{s} %{t} %{u*} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
666 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
667 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}\
668 %(mflib) " STACK_SPLIT_SPEC "\
669 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\
670 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
671 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
674 #ifndef LINK_LIBGCC_SPEC
675 /* Generate -L options for startfile prefix list. */
676 # define LINK_LIBGCC_SPEC "%D"
679 #ifndef STARTFILE_PREFIX_SPEC
680 # define STARTFILE_PREFIX_SPEC ""
684 # define SYSROOT_SPEC "--sysroot=%R"
687 #ifndef SYSROOT_SUFFIX_SPEC
688 # define SYSROOT_SUFFIX_SPEC ""
691 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
692 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
695 static const char *asm_debug
;
696 static const char *cpp_spec
= CPP_SPEC
;
697 static const char *cc1_spec
= CC1_SPEC
;
698 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
699 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
700 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
701 static const char *asm_spec
= ASM_SPEC
;
702 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
703 static const char *link_spec
= LINK_SPEC
;
704 static const char *lib_spec
= LIB_SPEC
;
705 static const char *mfwrap_spec
= MFWRAP_SPEC
;
706 static const char *mflib_spec
= MFLIB_SPEC
;
707 static const char *link_gomp_spec
= "";
708 static const char *libgcc_spec
= LIBGCC_SPEC
;
709 static const char *endfile_spec
= ENDFILE_SPEC
;
710 static const char *startfile_spec
= STARTFILE_SPEC
;
711 static const char *linker_name_spec
= LINKER_NAME
;
712 static const char *linker_plugin_file_spec
= "";
713 static const char *lto_wrapper_spec
= "";
714 static const char *lto_gcc_spec
= "";
715 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
716 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
717 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
718 static const char *sysroot_spec
= SYSROOT_SPEC
;
719 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
720 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
722 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
723 There should be no need to override these in target dependent files,
724 but we need to copy them to the specs file so that newer versions
725 of the GCC driver can correctly drive older tool chains with the
726 appropriate -B options. */
728 /* When cpplib handles traditional preprocessing, get rid of this, and
729 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
730 that we default the front end language better. */
731 static const char *trad_capable_cpp
=
732 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
734 /* We don't wrap .d files in %W{} since a missing .d file, and
735 therefore no dependency entry, confuses make into thinking a .o
736 file that happens to exist is up-to-date. */
737 static const char *cpp_unique_options
=
738 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
739 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
740 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
741 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
742 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
743 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
744 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
745 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
746 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
747 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
750 /* This contains cpp options which are common with cc1_options and are passed
751 only when preprocessing only to avoid duplication. We pass the cc1 spec
752 options to the preprocessor so that it the cc1 spec may manipulate
753 options used to set target flags. Those special target flags settings may
754 in turn cause preprocessor symbols to be defined specially. */
755 static const char *cpp_options
=
756 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
757 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
758 %{undef} %{save-temps*:-fpch-preprocess}";
760 /* This contains cpp options which are not passed when the preprocessor
761 output will be used by another program. */
762 static const char *cpp_debug_options
= "%{d*}";
764 /* NB: This is shared amongst all front-ends, except for Ada. */
765 static const char *cc1_options
=
766 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
767 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
768 %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\
769 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
770 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
771 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
772 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
773 %{Qn:-fno-ident} %{-help:--help}\
774 %{-target-help:--target-help}\
775 %{-version:--version}\
776 %{-help=*:--help=%*}\
777 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
778 %{fsyntax-only:-o %j} %{-param*}\
779 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
780 %{coverage:-fprofile-arcs -ftest-coverage}";
782 static const char *asm_options
=
783 "%{--target-help:%:print-asm-header()} "
785 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
786 to the assembler equivalents. */
787 "%{v} %{w:-W} %{I*} "
789 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
791 static const char *invoke_as
=
792 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
794 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
795 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
799 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
800 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
804 /* Some compilers have limits on line lengths, and the multilib_select
805 and/or multilib_matches strings can be very long, so we build them at
807 static struct obstack multilib_obstack
;
808 static const char *multilib_select
;
809 static const char *multilib_matches
;
810 static const char *multilib_defaults
;
811 static const char *multilib_exclusions
;
813 /* Check whether a particular argument is a default argument. */
815 #ifndef MULTILIB_DEFAULTS
816 #define MULTILIB_DEFAULTS { "" }
819 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
821 #ifndef DRIVER_SELF_SPECS
822 #define DRIVER_SELF_SPECS ""
825 /* Adding -fopenmp should imply pthreads. This is particularly important
826 for targets that use different start files and suchlike. */
827 #ifndef GOMP_SELF_SPECS
828 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
831 static const char *const driver_self_specs
[] = {
832 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
833 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
836 #ifndef OPTION_DEFAULT_SPECS
837 #define OPTION_DEFAULT_SPECS { "", "" }
846 static const struct default_spec
847 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
851 struct user_specs
*next
;
852 const char *filename
;
855 static struct user_specs
*user_specs_head
, *user_specs_tail
;
858 /* Record the mapping from file suffixes for compilation specs. */
862 const char *suffix
; /* Use this compiler for input files
863 whose names end in this suffix. */
865 const char *spec
; /* To use this compiler, run this spec. */
867 const char *cpp_spec
; /* If non-NULL, substitute this spec
868 for `%C', rather than the usual
870 const int combinable
; /* If nonzero, compiler can deal with
871 multiple source files at once (IMA). */
872 const int needs_preprocessing
; /* If nonzero, source files need to
873 be run through a preprocessor. */
876 /* Pointer to a vector of `struct compiler' that gives the spec for
877 compiling a file, based on its suffix.
878 A file that does not end in any of these suffixes will be passed
879 unchanged to the loader and nothing else will be done to it.
881 An entry containing two 0s is used to terminate the vector.
883 If multiple entries match a file, the last matching one is used. */
885 static struct compiler
*compilers
;
887 /* Number of entries in `compilers', not counting the null terminator. */
889 static int n_compilers
;
891 /* The default list of file name suffixes and their compilation specs. */
893 static const struct compiler default_compilers
[] =
895 /* Add lists of suffixes of known languages here. If those languages
896 were not present when we built the driver, we will hit these copies
897 and be given a more meaningful error than "file not used since
898 linking is not done". */
899 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
900 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
901 {".mii", "#Objective-C++", 0, 0, 0},
902 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
903 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
904 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
905 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
906 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
907 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
908 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
909 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
910 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
911 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
912 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
913 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
914 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
915 {".r", "#Ratfor", 0, 0, 0},
916 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
917 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
918 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
919 /* Next come the entries for C. */
920 {".c", "@c", 0, 0, 1},
922 /* cc1 has an integrated ISO C preprocessor. We should invoke the
923 external preprocessor if -save-temps is given. */
924 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
926 %{traditional|ftraditional:\
927 %eGNU C no longer supports -traditional without -E}\
928 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
929 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
930 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
932 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
933 cc1 %(cpp_unique_options) %(cc1_options)}}}\
934 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
936 "%{!E:%e-E or -x required when input is from standard input}\
937 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
938 {".h", "@c-header", 0, 0, 0},
940 /* cc1 has an integrated ISO C preprocessor. We should invoke the
941 external preprocessor if -save-temps is given. */
942 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
944 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
945 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
946 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
948 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
949 %W{o*:--output-pch=%*}}%V}\
950 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
951 cc1 %(cpp_unique_options) %(cc1_options)\
952 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
953 %W{o*:--output-pch=%*}}%V}}}}}}", 0, 0, 0},
954 {".i", "@cpp-output", 0, 0, 0},
956 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
957 {".s", "@assembler", 0, 1, 0},
959 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
960 {".sx", "@assembler-with-cpp", 0, 1, 0},
961 {".S", "@assembler-with-cpp", 0, 1, 0},
962 {"@assembler-with-cpp",
963 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
964 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
965 %{E|M|MM:%(cpp_debug_options)}\
966 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
967 as %(asm_debug) %(asm_options) %|.s %A }}}}"
969 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
970 %{E|M|MM:%(cpp_debug_options)}\
971 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
972 as %(asm_debug) %(asm_options) %m.s %A }}}}"
977 /* Mark end of table. */
981 /* Number of elements in default_compilers, not counting the terminator. */
983 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
985 typedef char *char_p
; /* For DEF_VEC_P. */
987 DEF_VEC_ALLOC_P(char_p
,heap
);
989 /* A vector of options to give to the linker.
990 These options are accumulated by %x,
991 and substituted into the linker command with %X. */
992 static VEC(char_p
,heap
) *linker_options
;
994 /* A vector of options to give to the assembler.
995 These options are accumulated by -Wa,
996 and substituted into the assembler command with %Y. */
997 static VEC(char_p
,heap
) *assembler_options
;
999 /* A vector of options to give to the preprocessor.
1000 These options are accumulated by -Wp,
1001 and substituted into the preprocessor command with %Z. */
1002 static VEC(char_p
,heap
) *preprocessor_options
;
1005 skip_whitespace (char *p
)
1009 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1010 be considered whitespace. */
1011 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1013 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1027 /* Structures to keep track of prefixes to try when looking for files. */
1031 const char *prefix
; /* String to prepend to the path. */
1032 struct prefix_list
*next
; /* Next in linked list. */
1033 int require_machine_suffix
; /* Don't use without machine_suffix. */
1034 /* 2 means try both machine_suffix and just_machine_suffix. */
1035 int priority
; /* Sort key - priority within list. */
1036 int os_multilib
; /* 1 if OS multilib scheme should be used,
1037 0 for GCC multilib scheme. */
1042 struct prefix_list
*plist
; /* List of prefixes to try */
1043 int max_len
; /* Max length of a prefix in PLIST */
1044 const char *name
; /* Name of this list (used in config stuff) */
1047 /* List of prefixes to try when looking for executables. */
1049 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1051 /* List of prefixes to try when looking for startup (crt0) files. */
1053 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1055 /* List of prefixes to try when looking for include files. */
1057 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1059 /* Suffix to attach to directories searched for commands.
1060 This looks like `MACHINE/VERSION/'. */
1062 static const char *machine_suffix
= 0;
1064 /* Suffix to attach to directories searched for commands.
1065 This is just `MACHINE/'. */
1067 static const char *just_machine_suffix
= 0;
1069 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1071 static const char *gcc_exec_prefix
;
1073 /* Adjusted value of standard_libexec_prefix. */
1075 static const char *gcc_libexec_prefix
;
1077 /* Default prefixes to attach to command names. */
1079 #ifndef STANDARD_STARTFILE_PREFIX_1
1080 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1082 #ifndef STANDARD_STARTFILE_PREFIX_2
1083 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1086 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1087 #undef MD_EXEC_PREFIX
1088 #undef MD_STARTFILE_PREFIX
1089 #undef MD_STARTFILE_PREFIX_1
1092 /* If no prefixes defined, use the null string, which will disable them. */
1093 #ifndef MD_EXEC_PREFIX
1094 #define MD_EXEC_PREFIX ""
1096 #ifndef MD_STARTFILE_PREFIX
1097 #define MD_STARTFILE_PREFIX ""
1099 #ifndef MD_STARTFILE_PREFIX_1
1100 #define MD_STARTFILE_PREFIX_1 ""
1103 /* These directories are locations set at configure-time based on the
1104 --prefix option provided to configure. Their initializers are
1105 defined in Makefile.in. These paths are not *directly* used when
1106 gcc_exec_prefix is set because, in that case, we know where the
1107 compiler has been installed, and use paths relative to that
1108 location instead. */
1109 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1110 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1111 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1112 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1114 /* For native compilers, these are well-known paths containing
1115 components that may be provided by the system. For cross
1116 compilers, these paths are not used. */
1117 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1118 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1119 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1120 static const char *const standard_startfile_prefix_1
1121 = STANDARD_STARTFILE_PREFIX_1
;
1122 static const char *const standard_startfile_prefix_2
1123 = STANDARD_STARTFILE_PREFIX_2
;
1125 /* A relative path to be used in finding the location of tools
1126 relative to the driver. */
1127 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1129 /* Subdirectory to use for locating libraries. Set by
1130 set_multilib_dir based on the compilation options. */
1132 static const char *multilib_dir
;
1134 /* Subdirectory to use for locating libraries in OS conventions. Set by
1135 set_multilib_dir based on the compilation options. */
1137 static const char *multilib_os_dir
;
1139 /* Structure to keep track of the specs that have been defined so far.
1140 These are accessed using %(specname) or %[specname] in a compiler
1145 /* The following 2 fields must be first */
1146 /* to allow EXTRA_SPECS to be initialized */
1147 const char *name
; /* name of the spec. */
1148 const char *ptr
; /* available ptr if no static pointer */
1150 /* The following fields are not initialized */
1151 /* by EXTRA_SPECS */
1152 const char **ptr_spec
; /* pointer to the spec itself. */
1153 struct spec_list
*next
; /* Next spec in linked list. */
1154 int name_len
; /* length of the name */
1155 int alloc_p
; /* whether string was allocated */
1158 #define INIT_STATIC_SPEC(NAME,PTR) \
1159 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1161 /* List of statically defined specs. */
1162 static struct spec_list static_specs
[] =
1164 INIT_STATIC_SPEC ("asm", &asm_spec
),
1165 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1166 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1167 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1168 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1169 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1170 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1171 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1172 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1173 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1174 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1175 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1176 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1177 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1178 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1179 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1180 INIT_STATIC_SPEC ("link", &link_spec
),
1181 INIT_STATIC_SPEC ("lib", &lib_spec
),
1182 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1183 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1184 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1185 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1186 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1187 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1188 INIT_STATIC_SPEC ("version", &compiler_version
),
1189 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1190 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1191 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1192 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1193 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1194 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1195 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1196 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1197 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1198 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1199 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1200 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1201 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1202 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1203 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1204 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1205 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1206 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1209 #ifdef EXTRA_SPECS /* additional specs needed */
1210 /* Structure to keep track of just the first two args of a spec_list.
1211 That is all that the EXTRA_SPECS macro gives us. */
1214 const char *const name
;
1215 const char *const ptr
;
1218 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1219 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1222 /* List of dynamically allocates specs that have been defined so far. */
1224 static struct spec_list
*specs
= (struct spec_list
*) 0;
1226 /* List of static spec functions. */
1228 static const struct spec_function static_spec_functions
[] =
1230 { "getenv", getenv_spec_function
},
1231 { "if-exists", if_exists_spec_function
},
1232 { "if-exists-else", if_exists_else_spec_function
},
1233 { "replace-outfile", replace_outfile_spec_function
},
1234 { "remove-outfile", remove_outfile_spec_function
},
1235 { "version-compare", version_compare_spec_function
},
1236 { "include", include_spec_function
},
1237 { "find-file", find_file_spec_function
},
1238 { "find-plugindir", find_plugindir_spec_function
},
1239 { "print-asm-header", print_asm_header_spec_function
},
1240 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1241 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1242 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1243 { "pass-through-libs", pass_through_libs_spec_func
},
1244 #ifdef EXTRA_SPEC_FUNCTIONS
1245 EXTRA_SPEC_FUNCTIONS
1250 static int processing_spec_function
;
1252 /* Add appropriate libgcc specs to OBSTACK, taking into account
1253 various permutations of -shared-libgcc, -shared, and such. */
1255 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1257 #ifndef USE_LD_AS_NEEDED
1258 #define USE_LD_AS_NEEDED 0
1262 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1263 const char *static_name
, const char *eh_name
)
1267 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1268 "%{!static:%{!static-libgcc:"
1269 #if USE_LD_AS_NEEDED
1270 "%{!shared-libgcc:",
1271 static_name
, " --as-needed ", shared_name
, " --no-as-needed"
1274 shared_name
, "%{!shared: ", static_name
, "}"
1278 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1279 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1283 "%{shared-libgcc:", shared_name
, "}"
1284 "%{!shared-libgcc:", static_name
, "}"
1287 "%{shared:", shared_name
, "}"
1292 obstack_grow (obstack
, buf
, strlen (buf
));
1295 #endif /* ENABLE_SHARED_LIBGCC */
1297 /* Initialize the specs lookup routines. */
1302 struct spec_list
*next
= (struct spec_list
*) 0;
1303 struct spec_list
*sl
= (struct spec_list
*) 0;
1307 return; /* Already initialized. */
1310 fnotice (stderr
, "Using built-in specs.\n");
1313 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1315 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1317 sl
= &extra_specs
[i
];
1318 sl
->name
= extra_specs_1
[i
].name
;
1319 sl
->ptr
= extra_specs_1
[i
].ptr
;
1321 sl
->name_len
= strlen (sl
->name
);
1322 sl
->ptr_spec
= &sl
->ptr
;
1327 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1329 sl
= &static_specs
[i
];
1334 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1335 /* ??? If neither -shared-libgcc nor --static-libgcc was
1336 seen, then we should be making an educated guess. Some proposed
1337 heuristics for ELF include:
1339 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1340 program will be doing dynamic loading, which will likely
1341 need the shared libgcc.
1343 (2) If "-ldl", then it's also a fair bet that we're doing
1346 (3) For each ET_DYN we're linking against (either through -lfoo
1347 or /some/path/foo.so), check to see whether it or one of
1348 its dependencies depends on a shared libgcc.
1352 If the runtime is fixed to look for program headers instead
1353 of calling __register_frame_info at all, for each object,
1354 use the shared libgcc if any EH symbol referenced.
1356 If crtstuff is fixed to not invoke __register_frame_info
1357 automatically, for each object, use the shared libgcc if
1358 any non-empty unwind section found.
1360 Doing any of this probably requires invoking an external program to
1361 do the actual object file scanning. */
1363 const char *p
= libgcc_spec
;
1366 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1367 when given the proper command line arguments. */
1370 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1372 init_gcc_specs (&obstack
,
1374 #ifdef USE_LIBUNWIND_EXCEPTIONS
1380 #ifdef USE_LIBUNWIND_EXCEPTIONS
1381 # ifdef HAVE_LD_STATIC_DYNAMIC
1382 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1392 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1394 /* Ug. We don't know shared library extensions. Hope that
1395 systems that use this form don't do shared libraries. */
1396 init_gcc_specs (&obstack
,
1400 #ifdef USE_LIBUNWIND_EXCEPTIONS
1409 obstack_1grow (&obstack
, *p
);
1410 in_sep
= (*p
== ' ');
1415 obstack_1grow (&obstack
, '\0');
1416 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1419 #ifdef USE_AS_TRADITIONAL_FORMAT
1420 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1422 static const char tf
[] = "--traditional-format ";
1423 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1424 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1425 asm_spec
= XOBFINISH (&obstack
, const char *);
1429 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC
1430 # ifdef LINK_BUILDID_SPEC
1431 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1432 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof(LINK_BUILDID_SPEC
) - 1);
1434 # ifdef LINK_EH_SPEC
1435 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1436 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1438 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1439 link_spec
= XOBFINISH (&obstack
, const char *);
1445 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1446 removed; If the spec starts with a + then SPEC is added to the end of the
1450 set_spec (const char *name
, const char *spec
)
1452 struct spec_list
*sl
;
1453 const char *old_spec
;
1454 int name_len
= strlen (name
);
1457 /* If this is the first call, initialize the statically allocated specs. */
1460 struct spec_list
*next
= (struct spec_list
*) 0;
1461 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1463 sl
= &static_specs
[i
];
1470 /* See if the spec already exists. */
1471 for (sl
= specs
; sl
; sl
= sl
->next
)
1472 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1477 /* Not found - make it. */
1478 sl
= XNEW (struct spec_list
);
1479 sl
->name
= xstrdup (name
);
1480 sl
->name_len
= name_len
;
1481 sl
->ptr_spec
= &sl
->ptr
;
1483 *(sl
->ptr_spec
) = "";
1488 old_spec
= *(sl
->ptr_spec
);
1489 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1490 ? concat (old_spec
, spec
+ 1, NULL
)
1495 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1498 /* Free the old spec. */
1499 if (old_spec
&& sl
->alloc_p
)
1500 free (CONST_CAST(char *, old_spec
));
1505 /* Accumulate a command (program name and args), and run it. */
1507 typedef const char *const_char_p
; /* For DEF_VEC_P. */
1508 DEF_VEC_P(const_char_p
);
1509 DEF_VEC_ALLOC_P(const_char_p
,heap
);
1511 /* Vector of pointers to arguments in the current line of specifications. */
1513 static VEC(const_char_p
,heap
) *argbuf
;
1515 /* Position in the argbuf vector containing the name of the output file
1516 (the value associated with the "-o" flag). */
1518 static int have_o_argbuf_index
= 0;
1520 /* Were the options -c, -S or -E passed. */
1521 static int have_c
= 0;
1523 /* Was the option -o passed. */
1524 static int have_o
= 0;
1526 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1527 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1530 static struct temp_name
{
1531 const char *suffix
; /* suffix associated with the code. */
1532 int length
; /* strlen (suffix). */
1533 int unique
; /* Indicates whether %g or %u/%U was used. */
1534 const char *filename
; /* associated filename. */
1535 int filename_length
; /* strlen (filename). */
1536 struct temp_name
*next
;
1539 /* Number of commands executed so far. */
1541 static int execution_count
;
1543 /* Number of commands that exited with a signal. */
1545 static int signal_count
;
1547 /* Allocate the argument vector. */
1552 argbuf
= VEC_alloc (const_char_p
, heap
, 10);
1555 /* Clear out the vector of arguments (after a command is executed). */
1560 VEC_truncate (const_char_p
, argbuf
, 0);
1563 /* Add one argument to the vector at the end.
1564 This is done when a space is seen or at the end of the line.
1565 If DELETE_ALWAYS is nonzero, the arg is a filename
1566 and the file should be deleted eventually.
1567 If DELETE_FAILURE is nonzero, the arg is a filename
1568 and the file should be deleted if this compilation fails. */
1571 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1573 VEC_safe_push (const_char_p
, heap
, argbuf
, arg
);
1575 if (strcmp (arg
, "-o") == 0)
1576 have_o_argbuf_index
= VEC_length (const_char_p
, argbuf
);
1577 if (delete_always
|| delete_failure
)
1580 /* If the temporary file we should delete is specified as
1581 part of a joined argument extract the filename. */
1583 && (p
= strrchr (arg
, '=')))
1585 record_temp_file (arg
, delete_always
, delete_failure
);
1589 /* Load specs from a file name named FILENAME, replacing occurrences of
1590 various different types of line-endings, \r\n, \n\r and just \r, with
1594 load_specs (const char *filename
)
1598 struct stat statbuf
;
1605 fnotice (stderr
, "Reading specs from %s\n", filename
);
1607 /* Open and stat the file. */
1608 desc
= open (filename
, O_RDONLY
, 0);
1610 pfatal_with_name (filename
);
1611 if (stat (filename
, &statbuf
) < 0)
1612 pfatal_with_name (filename
);
1614 /* Read contents of file into BUFFER. */
1615 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
1616 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1618 pfatal_with_name (filename
);
1619 buffer
[readlen
] = 0;
1622 specs
= XNEWVEC (char, readlen
+ 1);
1624 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1630 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1632 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1646 /* Read compilation specs from a file named FILENAME,
1647 replacing the default ones.
1649 A suffix which starts with `*' is a definition for
1650 one of the machine-specific sub-specs. The "suffix" should be
1651 *asm, *cc1, *cpp, *link, *startfile, etc.
1652 The corresponding spec is stored in asm_spec, etc.,
1653 rather than in the `compilers' vector.
1655 Anything invalid in the file is a fatal error. */
1658 read_specs (const char *filename
, int main_p
)
1663 buffer
= load_specs (filename
);
1665 /* Scan BUFFER for specs, putting them in the vector. */
1671 char *in
, *out
, *p1
, *p2
, *p3
;
1673 /* Advance P in BUFFER to the next nonblank nocomment line. */
1674 p
= skip_whitespace (p
);
1678 /* Is this a special command that starts with '%'? */
1679 /* Don't allow this for the main specs file, since it would
1680 encourage people to overwrite it. */
1681 if (*p
== '%' && !main_p
)
1684 while (*p
&& *p
!= '\n')
1690 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1691 && (p1
[sizeof "%include" - 1] == ' '
1692 || p1
[sizeof "%include" - 1] == '\t'))
1696 p1
+= sizeof ("%include");
1697 while (*p1
== ' ' || *p1
== '\t')
1700 if (*p1
++ != '<' || p
[-2] != '>')
1701 fatal_error ("specs %%include syntax malformed after "
1703 (long) (p1
- buffer
+ 1));
1706 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1707 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1710 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1711 && (p1
[sizeof "%include_noerr" - 1] == ' '
1712 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1716 p1
+= sizeof "%include_noerr";
1717 while (*p1
== ' ' || *p1
== '\t')
1720 if (*p1
++ != '<' || p
[-2] != '>')
1721 fatal_error ("specs %%include syntax malformed after "
1723 (long) (p1
- buffer
+ 1));
1726 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1728 read_specs (new_filename
, FALSE
);
1729 else if (verbose_flag
)
1730 fnotice (stderr
, "could not find specs file %s\n", p1
);
1733 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1734 && (p1
[sizeof "%rename" - 1] == ' '
1735 || p1
[sizeof "%rename" - 1] == '\t'))
1738 struct spec_list
*sl
;
1739 struct spec_list
*newsl
;
1741 /* Get original name. */
1742 p1
+= sizeof "%rename";
1743 while (*p1
== ' ' || *p1
== '\t')
1746 if (! ISALPHA ((unsigned char) *p1
))
1747 fatal_error ("specs %%rename syntax malformed after "
1749 (long) (p1
- buffer
));
1752 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1755 if (*p2
!= ' ' && *p2
!= '\t')
1756 fatal_error ("specs %%rename syntax malformed after "
1758 (long) (p2
- buffer
));
1762 while (*p2
== ' ' || *p2
== '\t')
1765 if (! ISALPHA ((unsigned char) *p2
))
1766 fatal_error ("specs %%rename syntax malformed after "
1768 (long) (p2
- buffer
));
1770 /* Get new spec name. */
1772 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
1776 fatal_error ("specs %%rename syntax malformed after "
1778 (long) (p3
- buffer
));
1781 for (sl
= specs
; sl
; sl
= sl
->next
)
1782 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1786 fatal_error ("specs %s spec was not found to be renamed", p1
);
1788 if (strcmp (p1
, p2
) == 0)
1791 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
1792 if (strcmp (newsl
->name
, p2
) == 0)
1793 fatal_error ("%s: attempt to rename spec %qs to "
1794 "already defined spec %qs",
1799 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
1801 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
1805 set_spec (p2
, *(sl
->ptr_spec
));
1807 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
1809 *(sl
->ptr_spec
) = "";
1814 fatal_error ("specs unknown %% command after %ld characters",
1815 (long) (p1
- buffer
));
1818 /* Find the colon that should end the suffix. */
1820 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1823 /* The colon shouldn't be missing. */
1825 fatal_error ("specs file malformed after %ld characters",
1826 (long) (p1
- buffer
));
1828 /* Skip back over trailing whitespace. */
1830 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1833 /* Copy the suffix to a string. */
1834 suffix
= save_string (p
, p2
- p
);
1835 /* Find the next line. */
1836 p
= skip_whitespace (p1
+ 1);
1838 fatal_error ("specs file malformed after %ld characters",
1839 (long) (p
- buffer
));
1842 /* Find next blank line or end of string. */
1843 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1846 /* Specs end at the blank line and do not include the newline. */
1847 spec
= save_string (p
, p1
- p
);
1850 /* Delete backslash-newline sequences from the spec. */
1855 if (in
[0] == '\\' && in
[1] == '\n')
1857 else if (in
[0] == '#')
1858 while (*in
&& *in
!= '\n')
1866 if (suffix
[0] == '*')
1868 if (! strcmp (suffix
, "*link_command"))
1869 link_command_spec
= spec
;
1871 set_spec (suffix
+ 1, spec
);
1875 /* Add this pair to the vector. */
1877 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
1879 compilers
[n_compilers
].suffix
= suffix
;
1880 compilers
[n_compilers
].spec
= spec
;
1882 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
1886 link_command_spec
= spec
;
1889 if (link_command_spec
== 0)
1890 fatal_error ("spec file has no spec for linking");
1893 /* Record the names of temporary files we tell compilers to write,
1894 and delete them at the end of the run. */
1896 /* This is the common prefix we use to make temp file names.
1897 It is chosen once for each run of this program.
1898 It is substituted into a spec by %g or %j.
1899 Thus, all temp file names contain this prefix.
1900 In practice, all temp file names start with this prefix.
1902 This prefix comes from the envvar TMPDIR if it is defined;
1903 otherwise, from the P_tmpdir macro if that is defined;
1904 otherwise, in /usr/tmp or /tmp;
1905 or finally the current directory if all else fails. */
1907 static const char *temp_filename
;
1909 /* Length of the prefix. */
1911 static int temp_filename_length
;
1913 /* Define the list of temporary files to delete. */
1918 struct temp_file
*next
;
1921 /* Queue of files to delete on success or failure of compilation. */
1922 static struct temp_file
*always_delete_queue
;
1923 /* Queue of files to delete on failure of compilation. */
1924 static struct temp_file
*failure_delete_queue
;
1926 /* Record FILENAME as a file to be deleted automatically.
1927 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1928 otherwise delete it in any case.
1929 FAIL_DELETE nonzero means delete it if a compilation step fails;
1930 otherwise delete it in any case. */
1933 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
1935 char *const name
= xstrdup (filename
);
1939 struct temp_file
*temp
;
1940 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1941 if (! strcmp (name
, temp
->name
))
1944 temp
= XNEW (struct temp_file
);
1945 temp
->next
= always_delete_queue
;
1947 always_delete_queue
= temp
;
1954 struct temp_file
*temp
;
1955 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1956 if (! strcmp (name
, temp
->name
))
1959 temp
= XNEW (struct temp_file
);
1960 temp
->next
= failure_delete_queue
;
1962 failure_delete_queue
= temp
;
1968 /* Delete all the temporary files whose names we previously recorded. */
1970 #ifndef DELETE_IF_ORDINARY
1971 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
1974 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
1975 if (unlink (NAME) < 0) \
1977 perror_with_name (NAME); \
1982 delete_if_ordinary (const char *name
)
1988 printf ("Delete %s? (y or n) ", name
);
1992 while ((c
= getchar ()) != '\n' && c
!= EOF
)
1995 if (i
== 'y' || i
== 'Y')
1997 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2001 delete_temp_files (void)
2003 struct temp_file
*temp
;
2005 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2006 delete_if_ordinary (temp
->name
);
2007 always_delete_queue
= 0;
2010 /* Delete all the files to be deleted on error. */
2013 delete_failure_queue (void)
2015 struct temp_file
*temp
;
2017 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2018 delete_if_ordinary (temp
->name
);
2022 clear_failure_queue (void)
2024 failure_delete_queue
= 0;
2027 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2029 If DO_MULTI is true iterate over the paths twice, first with multilib
2030 suffix then without, otherwise iterate over the paths once without
2031 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2032 to avoid visiting the same path twice, but we could do better. For
2033 instance, /usr/lib/../lib is considered different from /usr/lib.
2034 At least EXTRA_SPACE chars past the end of the path passed to
2035 CALLBACK are available for use by the callback.
2036 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2038 Returns the value returned by CALLBACK. */
2041 for_each_path (const struct path_prefix
*paths
,
2044 void *(*callback
) (char *, void *),
2045 void *callback_info
)
2047 struct prefix_list
*pl
;
2048 const char *multi_dir
= NULL
;
2049 const char *multi_os_dir
= NULL
;
2050 const char *multi_suffix
;
2051 const char *just_multi_suffix
;
2054 bool skip_multi_dir
= false;
2055 bool skip_multi_os_dir
= false;
2057 multi_suffix
= machine_suffix
;
2058 just_multi_suffix
= just_machine_suffix
;
2059 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2061 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2062 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2063 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2065 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2066 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2070 size_t multi_dir_len
= 0;
2071 size_t multi_os_dir_len
= 0;
2073 size_t just_suffix_len
;
2077 multi_dir_len
= strlen (multi_dir
);
2079 multi_os_dir_len
= strlen (multi_os_dir
);
2080 suffix_len
= strlen (multi_suffix
);
2081 just_suffix_len
= strlen (just_multi_suffix
);
2085 len
= paths
->max_len
+ extra_space
+ 1;
2086 if (suffix_len
> multi_os_dir_len
)
2089 len
+= multi_os_dir_len
;
2090 path
= XNEWVEC (char, len
);
2093 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2095 len
= strlen (pl
->prefix
);
2096 memcpy (path
, pl
->prefix
, len
);
2098 /* Look first in MACHINE/VERSION subdirectory. */
2099 if (!skip_multi_dir
)
2101 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2102 ret
= callback (path
, callback_info
);
2107 /* Some paths are tried with just the machine (ie. target)
2108 subdir. This is used for finding as, ld, etc. */
2110 && pl
->require_machine_suffix
== 2)
2112 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2113 ret
= callback (path
, callback_info
);
2118 /* Now try the base path. */
2119 if (!pl
->require_machine_suffix
2120 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2122 const char *this_multi
;
2123 size_t this_multi_len
;
2125 if (pl
->os_multilib
)
2127 this_multi
= multi_os_dir
;
2128 this_multi_len
= multi_os_dir_len
;
2132 this_multi
= multi_dir
;
2133 this_multi_len
= multi_dir_len
;
2137 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2141 ret
= callback (path
, callback_info
);
2149 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2152 /* Run through the paths again, this time without multilibs.
2153 Don't repeat any we have already seen. */
2156 free (CONST_CAST (char *, multi_dir
));
2158 free (CONST_CAST (char *, multi_suffix
));
2159 multi_suffix
= machine_suffix
;
2160 free (CONST_CAST (char *, just_multi_suffix
));
2161 just_multi_suffix
= just_machine_suffix
;
2164 skip_multi_dir
= true;
2167 free (CONST_CAST (char *, multi_os_dir
));
2168 multi_os_dir
= NULL
;
2171 skip_multi_os_dir
= true;
2176 free (CONST_CAST (char *, multi_dir
));
2177 free (CONST_CAST (char *, multi_suffix
));
2178 free (CONST_CAST (char *, just_multi_suffix
));
2181 free (CONST_CAST (char *, multi_os_dir
));
2187 /* Callback for build_search_list. Adds path to obstack being built. */
2189 struct add_to_obstack_info
{
2196 add_to_obstack (char *path
, void *data
)
2198 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2200 if (info
->check_dir
&& !is_directory (path
, false))
2203 if (!info
->first_time
)
2204 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2206 obstack_grow (info
->ob
, path
, strlen (path
));
2208 info
->first_time
= false;
2212 /* Add or change the value of an environment variable, outputting the
2213 change to standard error if in verbose mode. */
2215 xputenv (const char *string
)
2218 fnotice (stderr
, "%s\n", string
);
2219 putenv (CONST_CAST (char *, string
));
2222 /* Build a list of search directories from PATHS.
2223 PREFIX is a string to prepend to the list.
2224 If CHECK_DIR_P is true we ensure the directory exists.
2225 If DO_MULTI is true, multilib paths are output first, then
2227 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2228 It is also used by the --print-search-dirs flag. */
2231 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2232 bool check_dir
, bool do_multi
)
2234 struct add_to_obstack_info info
;
2236 info
.ob
= &collect_obstack
;
2237 info
.check_dir
= check_dir
;
2238 info
.first_time
= true;
2240 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2241 obstack_1grow (&collect_obstack
, '=');
2243 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2245 obstack_1grow (&collect_obstack
, '\0');
2246 return XOBFINISH (&collect_obstack
, char *);
2249 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2253 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2256 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2259 /* Check whether NAME can be accessed in MODE. This is like access,
2260 except that it never considers directories to be executable. */
2263 access_check (const char *name
, int mode
)
2269 if (stat (name
, &st
) < 0
2270 || S_ISDIR (st
.st_mode
))
2274 return access (name
, mode
);
2277 /* Callback for find_a_file. Appends the file name to the directory
2278 path. If the resulting file exists in the right mode, return the
2279 full pathname to the file. */
2281 struct file_at_path_info
{
2290 file_at_path (char *path
, void *data
)
2292 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2293 size_t len
= strlen (path
);
2295 memcpy (path
+ len
, info
->name
, info
->name_len
);
2296 len
+= info
->name_len
;
2298 /* Some systems have a suffix for executable files.
2299 So try appending that first. */
2300 if (info
->suffix_len
)
2302 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2303 if (access_check (path
, info
->mode
) == 0)
2308 if (access_check (path
, info
->mode
) == 0)
2314 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2315 access to check permissions. If DO_MULTI is true, search multilib
2316 paths then non-multilib paths, otherwise do not search multilib paths.
2317 Return 0 if not found, otherwise return its name, allocated with malloc. */
2320 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2323 struct file_at_path_info info
;
2325 #ifdef DEFAULT_ASSEMBLER
2326 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2327 return xstrdup (DEFAULT_ASSEMBLER
);
2330 #ifdef DEFAULT_LINKER
2331 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2332 return xstrdup (DEFAULT_LINKER
);
2335 /* Determine the filename to execute (special case for absolute paths). */
2337 if (IS_ABSOLUTE_PATH (name
))
2339 if (access (name
, mode
) == 0)
2340 return xstrdup (name
);
2346 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2347 info
.name_len
= strlen (info
.name
);
2348 info
.suffix_len
= strlen (info
.suffix
);
2351 return (char*) for_each_path (pprefix
, do_multi
,
2352 info
.name_len
+ info
.suffix_len
,
2353 file_at_path
, &info
);
2356 /* Ranking of prefixes in the sort list. -B prefixes are put before
2359 enum path_prefix_priority
2361 PREFIX_PRIORITY_B_OPT
,
2362 PREFIX_PRIORITY_LAST
2365 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2366 order according to PRIORITY. Within each PRIORITY, new entries are
2369 If WARN is nonzero, we will warn if no file is found
2370 through this prefix. WARN should point to an int
2371 which will be set to 1 if this entry is used.
2373 COMPONENT is the value to be passed to update_path.
2375 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2376 the complete value of machine_suffix.
2377 2 means try both machine_suffix and just_machine_suffix. */
2380 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2381 const char *component
, /* enum prefix_priority */ int priority
,
2382 int require_machine_suffix
, int os_multilib
)
2384 struct prefix_list
*pl
, **prev
;
2387 for (prev
= &pprefix
->plist
;
2388 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2389 prev
= &(*prev
)->next
)
2392 /* Keep track of the longest prefix. */
2394 prefix
= update_path (prefix
, component
);
2395 len
= strlen (prefix
);
2396 if (len
> pprefix
->max_len
)
2397 pprefix
->max_len
= len
;
2399 pl
= XNEW (struct prefix_list
);
2400 pl
->prefix
= prefix
;
2401 pl
->require_machine_suffix
= require_machine_suffix
;
2402 pl
->priority
= priority
;
2403 pl
->os_multilib
= os_multilib
;
2405 /* Insert after PREV. */
2410 /* Same as add_prefix, but prepending target_system_root to prefix. */
2411 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2413 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2414 const char *component
,
2415 /* enum prefix_priority */ int priority
,
2416 int require_machine_suffix
, int os_multilib
)
2418 if (!IS_ABSOLUTE_PATH (prefix
))
2419 fatal_error ("system path %qs is not absolute", prefix
);
2421 if (target_system_root
)
2423 if (target_sysroot_suffix
)
2424 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2425 prefix
= concat (target_system_root
, prefix
, NULL
);
2427 /* We have to override this because GCC's notion of sysroot
2428 moves along with GCC. */
2432 add_prefix (pprefix
, prefix
, component
, priority
,
2433 require_machine_suffix
, os_multilib
);
2436 /* Execute the command specified by the arguments on the current line of spec.
2437 When using pipes, this includes several piped-together commands
2438 with `|' between them.
2440 Return 0 if successful, -1 if failed. */
2446 int n_commands
; /* # of command. */
2448 struct pex_obj
*pex
;
2451 const char *prog
; /* program name. */
2452 const char **argv
; /* vector of args. */
2456 struct command
*commands
; /* each command buffer with above info. */
2458 gcc_assert (!processing_spec_function
);
2462 string
= find_a_file (&exec_prefixes
,
2463 VEC_index (const_char_p
, argbuf
, 0), X_OK
, false);
2465 VEC_replace (const_char_p
, argbuf
, 0, string
);
2466 insert_wrapper (wrapper_string
);
2469 /* Count # of piped commands. */
2470 for (n_commands
= 1, i
= 0; VEC_iterate (const_char_p
, argbuf
, i
, arg
); i
++)
2471 if (strcmp (arg
, "|") == 0)
2474 /* Get storage for each command. */
2475 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2477 /* Split argbuf into its separate piped processes,
2478 and record info about each one.
2479 Also search for the programs that are to be run. */
2481 VEC_safe_push (const_char_p
, heap
, argbuf
, 0);
2483 commands
[0].prog
= VEC_index (const_char_p
, argbuf
, 0); /* first command. */
2484 commands
[0].argv
= VEC_address (const_char_p
, argbuf
);
2486 if (!wrapper_string
)
2488 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2489 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2492 for (n_commands
= 1, i
= 0; VEC_iterate (const_char_p
, argbuf
, i
, arg
); i
++)
2493 if (arg
&& strcmp (arg
, "|") == 0)
2494 { /* each command. */
2495 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2496 fatal_error ("-pipe not supported");
2498 VEC_replace (const_char_p
, argbuf
, i
, 0); /* Termination of
2500 commands
[n_commands
].prog
= VEC_index (const_char_p
, argbuf
, i
+ 1);
2501 commands
[n_commands
].argv
2502 = &(VEC_address (const_char_p
, argbuf
))[i
+ 1];
2503 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2506 commands
[n_commands
].argv
[0] = string
;
2510 /* If -v, print what we are about to do, and maybe query. */
2514 /* For help listings, put a blank line between sub-processes. */
2515 if (print_help_list
)
2516 fputc ('\n', stderr
);
2518 /* Print each piped command as a separate line. */
2519 for (i
= 0; i
< n_commands
; i
++)
2521 const char *const *j
;
2523 if (verbose_only_flag
)
2525 for (j
= commands
[i
].argv
; *j
; j
++)
2528 for (p
= *j
; *p
; ++p
)
2529 if (!ISALNUM ((unsigned char) *p
)
2530 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
2534 fprintf (stderr
, " \"");
2535 for (p
= *j
; *p
; ++p
)
2537 if (*p
== '"' || *p
== '\\' || *p
== '$')
2538 fputc ('\\', stderr
);
2541 fputc ('"', stderr
);
2544 fprintf (stderr
, " %s", *j
);
2548 for (j
= commands
[i
].argv
; *j
; j
++)
2549 fprintf (stderr
, " %s", *j
);
2551 /* Print a pipe symbol after all but the last command. */
2552 if (i
+ 1 != n_commands
)
2553 fprintf (stderr
, " |");
2554 fprintf (stderr
, "\n");
2557 if (verbose_only_flag
!= 0)
2559 /* verbose_only_flag should act as if the spec was
2560 executed, so increment execution_count before
2561 returning. This prevents spurious warnings about
2562 unused linker input files, etc. */
2567 fnotice (stderr
, "\nGo ahead? (y or n) ");
2571 while (getchar () != '\n')
2574 if (i
!= 'y' && i
!= 'Y')
2579 #ifdef ENABLE_VALGRIND_CHECKING
2580 /* Run the each command through valgrind. To simplify prepending the
2581 path to valgrind and the option "-q" (for quiet operation unless
2582 something triggers), we allocate a separate argv array. */
2584 for (i
= 0; i
< n_commands
; i
++)
2590 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2593 argv
= XALLOCAVEC (const char *, argc
+ 3);
2595 argv
[0] = VALGRIND_PATH
;
2597 for (j
= 2; j
< argc
+ 2; j
++)
2598 argv
[j
] = commands
[i
].argv
[j
- 2];
2601 commands
[i
].argv
= argv
;
2602 commands
[i
].prog
= argv
[0];
2606 /* Run each piped subprocess. */
2608 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
2609 ? PEX_RECORD_TIMES
: 0),
2610 progname
, temp_filename
);
2612 fatal_error ("pex_init failed: %m");
2614 for (i
= 0; i
< n_commands
; i
++)
2618 const char *string
= commands
[i
].argv
[0];
2620 errmsg
= pex_run (pex
,
2621 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
2622 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
2623 string
, CONST_CAST (char **, commands
[i
].argv
),
2628 fatal_error (errmsg
);
2632 pfatal_with_name (errmsg
);
2636 if (string
!= commands
[i
].prog
)
2637 free (CONST_CAST (char *, string
));
2642 /* Wait for all the subprocesses to finish. */
2646 struct pex_time
*times
= NULL
;
2649 statuses
= (int *) alloca (n_commands
* sizeof (int));
2650 if (!pex_get_status (pex
, n_commands
, statuses
))
2651 fatal_error ("failed to get exit status: %m");
2653 if (report_times
|| report_times_to_file
)
2655 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
2656 if (!pex_get_times (pex
, n_commands
, times
))
2657 fatal_error ("failed to get process times: %m");
2662 for (i
= 0; i
< n_commands
; ++i
)
2664 int status
= statuses
[i
];
2666 if (WIFSIGNALED (status
))
2669 /* SIGPIPE is a special case. It happens in -pipe mode
2670 when the compiler dies before the preprocessor is done,
2671 or the assembler dies before the compiler is done.
2672 There's generally been an error already, and this is
2673 just fallout. So don't generate another error unless
2674 we would otherwise have succeeded. */
2675 if (WTERMSIG (status
) == SIGPIPE
2676 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2683 internal_error ("%s (program %s)",
2684 strsignal (WTERMSIG (status
)), commands
[i
].prog
);
2686 else if (WIFEXITED (status
)
2687 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2689 if (WEXITSTATUS (status
) > greatest_status
)
2690 greatest_status
= WEXITSTATUS (status
);
2694 if (report_times
|| report_times_to_file
)
2696 struct pex_time
*pt
= ×
[i
];
2699 ut
= ((double) pt
->user_seconds
2700 + (double) pt
->user_microseconds
/ 1.0e6
);
2701 st
= ((double) pt
->system_seconds
2702 + (double) pt
->system_microseconds
/ 1.0e6
);
2707 fnotice (stderr
, "# %s %.2f %.2f\n",
2708 commands
[i
].prog
, ut
, st
);
2710 if (report_times_to_file
)
2713 const char *const *j
;
2715 fprintf (report_times_to_file
, "%g %g", ut
, st
);
2717 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
2720 for (p
= *j
; *p
; ++p
)
2721 if (*p
== '"' || *p
== '\\' || *p
== '$'
2727 fprintf (report_times_to_file
, " \"");
2728 for (p
= *j
; *p
; ++p
)
2730 if (*p
== '"' || *p
== '\\' || *p
== '$')
2731 fputc ('\\', report_times_to_file
);
2732 fputc (*p
, report_times_to_file
);
2734 fputc ('"', report_times_to_file
);
2737 fprintf (report_times_to_file
, " %s", *j
);
2740 fputc ('\n', report_times_to_file
);
2750 /* Find all the switches given to us
2751 and make a vector describing them.
2752 The elements of the vector are strings, one per switch given.
2753 If a switch uses following arguments, then the `part1' field
2754 is the switch itself and the `args' field
2755 is a null-terminated vector containing the following arguments.
2756 Bits in the `live_cond' field are:
2757 SWITCH_LIVE to indicate this switch is true in a conditional spec.
2758 SWITCH_FALSE to indicate this switch is overridden by a later switch.
2759 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
2760 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored
2761 in all do_spec calls afterwards. Used for %<S from self specs.
2762 The `validated' field is nonzero if any spec has looked at this switch;
2763 if it remains zero at the end of the run, it must be meaningless. */
2765 #define SWITCH_LIVE 0x1
2766 #define SWITCH_FALSE 0x2
2767 #define SWITCH_IGNORE 0x4
2768 #define SWITCH_IGNORE_PERMANENTLY 0x8
2774 unsigned int live_cond
;
2775 unsigned char validated
;
2776 unsigned char ordering
;
2779 static struct switchstr
*switches
;
2781 static int n_switches
;
2783 static int n_switches_alloc
;
2785 /* Set to zero if -fcompare-debug is disabled, positive if it's
2786 enabled and we're running the first compilation, negative if it's
2787 enabled and we're running the second compilation. For most of the
2788 time, it's in the range -1..1, but it can be temporarily set to 2
2789 or 3 to indicate that the -fcompare-debug flags didn't come from
2790 the command-line, but rather from the GCC_COMPARE_DEBUG environment
2791 variable, until a synthesized -fcompare-debug flag is added to the
2795 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
2796 int compare_debug_second
;
2798 /* Set to the flags that should be passed to the second compilation in
2799 a -fcompare-debug compilation. */
2800 const char *compare_debug_opt
;
2802 static struct switchstr
*switches_debug_check
[2];
2804 static int n_switches_debug_check
[2];
2806 static int n_switches_alloc_debug_check
[2];
2808 static char *debug_check_temp_file
[2];
2810 /* Language is one of three things:
2812 1) The name of a real programming language.
2813 2) NULL, indicating that no one has figured out
2815 3) '*', indicating that the file should be passed
2820 const char *language
;
2821 struct compiler
*incompiler
;
2826 /* Also a vector of input files specified. */
2828 static struct infile
*infiles
;
2832 static int n_infiles_alloc
;
2834 /* True if multiple input files are being compiled to a single
2837 static bool combine_inputs
;
2839 /* This counts the number of libraries added by lang_specific_driver, so that
2840 we can tell if there were any user supplied any files or libraries. */
2842 static int added_libraries
;
2844 /* And a vector of corresponding output files is made up later. */
2846 const char **outfiles
;
2848 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2850 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2851 is true if we should look for an executable suffix. DO_OBJ
2852 is true if we should look for an object suffix. */
2855 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
2856 int do_obj ATTRIBUTE_UNUSED
)
2858 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2866 len
= strlen (name
);
2868 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2869 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2870 if (do_obj
&& len
> 2
2871 && name
[len
- 2] == '.'
2872 && name
[len
- 1] == 'o')
2874 obstack_grow (&obstack
, name
, len
- 2);
2875 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
2876 name
= XOBFINISH (&obstack
, const char *);
2880 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2881 /* If there is no filetype, make it the executable suffix (which includes
2882 the "."). But don't get confused if we have just "-o". */
2883 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2886 for (i
= len
- 1; i
>= 0; i
--)
2887 if (IS_DIR_SEPARATOR (name
[i
]))
2890 for (i
++; i
< len
; i
++)
2894 obstack_grow (&obstack
, name
, len
);
2895 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
2896 strlen (TARGET_EXECUTABLE_SUFFIX
));
2897 name
= XOBFINISH (&obstack
, const char *);
2904 /* Display the command line switches accepted by gcc. */
2908 printf (_("Usage: %s [options] file...\n"), progname
);
2909 fputs (_("Options:\n"), stdout
);
2911 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
2912 fputs (_(" --help Display this information\n"), stdout
);
2913 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
2914 fputs (_(" --help={target|optimizers|warnings|params|[^]{joined|separate|undocumented}}[,...]\n"), stdout
);
2915 fputs (_(" Display specific types of command line options\n"), stdout
);
2917 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
2918 fputs (_(" --version Display compiler version information\n"), stdout
);
2919 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
2920 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
2921 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
2922 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
2923 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
2924 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
2925 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
2926 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
2928 -print-multi-lib Display the mapping between command line options and\n\
2929 multiple library search directories\n"), stdout
);
2930 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
2931 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout
);
2932 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
2933 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
2934 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
2935 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
2936 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
2937 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
2938 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
2939 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
2940 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout
);
2942 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
2943 prefixes to other gcc components\n"), stdout
);
2944 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
2945 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
2946 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
2947 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
2949 --sysroot=<directory> Use <directory> as the root directory for headers\n\
2950 and libraries\n"), stdout
);
2951 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
2952 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
2953 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
2954 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
2955 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
2956 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
2957 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
2959 -x <language> Specify the language of the following input files\n\
2960 Permissible languages include: c c++ assembler none\n\
2961 'none' means revert to the default behavior of\n\
2962 guessing the language based on the file's extension\n\
2966 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
2967 passed on to the various sub-processes invoked by %s. In order to pass\n\
2968 other options on to these processes the -W<letter> options must be used.\n\
2971 /* The rest of the options are displayed by invocations of the various
2976 add_preprocessor_option (const char *option
, int len
)
2978 VEC_safe_push (char_p
, heap
, preprocessor_options
,
2979 save_string (option
, len
));
2983 add_assembler_option (const char *option
, int len
)
2985 VEC_safe_push (char_p
, heap
, assembler_options
, save_string (option
, len
));
2989 add_linker_option (const char *option
, int len
)
2991 VEC_safe_push (char_p
, heap
, linker_options
, save_string (option
, len
));
2994 /* Allocate space for an input file in infiles. */
2999 if (n_infiles_alloc
== 0)
3001 n_infiles_alloc
= 16;
3002 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3004 else if (n_infiles_alloc
== n_infiles
)
3006 n_infiles_alloc
*= 2;
3007 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3011 /* Store an input file with the given NAME and LANGUAGE in
3015 add_infile (const char *name
, const char *language
)
3018 infiles
[n_infiles
].name
= name
;
3019 infiles
[n_infiles
++].language
= language
;
3022 /* Allocate space for a switch in switches. */
3027 if (n_switches_alloc
== 0)
3029 n_switches_alloc
= 16;
3030 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3032 else if (n_switches_alloc
== n_switches
)
3034 n_switches_alloc
*= 2;
3035 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3039 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3040 as validated if VALIDATED. */
3043 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3047 switches
[n_switches
].part1
= opt
+ 1;
3049 switches
[n_switches
].args
= 0;
3052 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3053 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3054 switches
[n_switches
].args
[n_args
] = NULL
;
3057 switches
[n_switches
].live_cond
= 0;
3058 switches
[n_switches
].validated
= validated
;
3059 switches
[n_switches
].ordering
= 0;
3063 /* Handle an option DECODED that is unknown to the option-processing
3064 machinery, but may be known to specs. */
3067 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3069 save_switch (decoded
->canonical_option
[0],
3070 decoded
->canonical_option_num_elements
- 1,
3071 &decoded
->canonical_option
[1], false);
3076 /* Handle an option DECODED that is not marked as CL_DRIVER.
3077 LANG_MASK will always be CL_DRIVER. */
3080 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3081 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3083 /* At this point, non-driver options are accepted (and expected to
3084 be passed down by specs) unless marked to be rejected by the
3085 driver. Options to be rejected by the driver but accepted by the
3086 compilers proper are treated just like completely unknown
3088 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3090 if (option
->flags
& CL_REJECT_DRIVER
)
3091 error ("unrecognized command line option %qs",
3092 decoded
->orig_option_with_args_text
);
3094 driver_unknown_option_callback (decoded
);
3097 /* Note that an option (index OPT_INDEX, argument ARG, value VALUE)
3098 has been successfully handled with a handler for mask MASK. */
3101 driver_post_handling_callback (const struct cl_decoded_option
*decoded ATTRIBUTE_UNUSED
,
3102 unsigned int mask ATTRIBUTE_UNUSED
)
3104 /* Nothing to do here. */
3107 static const char *spec_lang
= 0;
3108 static int last_language_n_infiles
;
3110 /* Handle a driver option; arguments and return value as for
3114 driver_handle_option (struct gcc_options
*opts
,
3115 struct gcc_options
*opts_set
,
3116 const struct cl_decoded_option
*decoded
,
3117 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
3119 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
,
3120 diagnostic_context
*dc
)
3122 size_t opt_index
= decoded
->opt_index
;
3123 const char *arg
= decoded
->arg
;
3124 const char *compare_debug_replacement_opt
;
3125 int value
= decoded
->value
;
3126 bool validated
= false;
3127 bool do_save
= true;
3129 gcc_assert (opts
== &global_options
);
3130 gcc_assert (opts_set
== &global_options_set
);
3131 gcc_assert (kind
== DK_UNSPECIFIED
);
3132 gcc_assert (loc
== UNKNOWN_LOCATION
);
3133 gcc_assert (dc
== global_dc
);
3139 struct spec_list
*sl
;
3141 for (sl
= specs
; sl
; sl
= sl
->next
)
3142 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3143 if (link_command_spec
)
3144 printf ("*link_command:\n%s\n\n", link_command_spec
);
3148 case OPT_dumpversion
:
3149 printf ("%s\n", spec_version
);
3152 case OPT_dumpmachine
:
3153 printf ("%s\n", spec_machine
);
3159 /* CPP driver cannot obtain switch from cc1_options. */
3161 add_preprocessor_option ("--version", strlen ("--version"));
3162 add_assembler_option ("--version", strlen ("--version"));
3163 add_linker_option ("--version", strlen ("--version"));
3167 print_help_list
= 1;
3169 /* CPP driver cannot obtain switch from cc1_options. */
3171 add_preprocessor_option ("--help", 6);
3172 add_assembler_option ("--help", 6);
3173 add_linker_option ("--help", 6);
3177 print_subprocess_help
= 2;
3180 case OPT__target_help
:
3181 print_subprocess_help
= 1;
3183 /* CPP driver cannot obtain switch from cc1_options. */
3185 add_preprocessor_option ("--target-help", 13);
3186 add_assembler_option ("--target-help", 13);
3187 add_linker_option ("--target-help", 13);
3190 case OPT_pass_exit_codes
:
3191 case OPT_print_search_dirs
:
3192 case OPT_print_file_name_
:
3193 case OPT_print_prog_name_
:
3194 case OPT_print_multi_lib
:
3195 case OPT_print_multi_directory
:
3196 case OPT_print_sysroot
:
3197 case OPT_print_multi_os_directory
:
3198 case OPT_print_sysroot_headers_suffix
:
3201 /* These options set the variables specified in common.opt
3202 automatically, and do not need to be saved for spec
3207 case OPT_print_libgcc_file_name
:
3208 print_file_name
= "libgcc.a";
3212 case OPT_fcompare_debug_second
:
3213 compare_debug_second
= 1;
3216 case OPT_fcompare_debug
:
3220 compare_debug_replacement_opt
= "-fcompare-debug=";
3222 goto compare_debug_with_arg
;
3225 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
3227 goto compare_debug_with_arg
;
3234 case OPT_fcompare_debug_
:
3235 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
3236 compare_debug_with_arg
:
3237 gcc_assert (decoded
->canonical_option_num_elements
== 1);
3238 gcc_assert (arg
!= NULL
);
3243 if (compare_debug
< 0)
3244 compare_debug_opt
= NULL
;
3246 compare_debug_opt
= arg
;
3247 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
);
3253 /* Pass the rest of this option to the assembler. */
3255 /* Split the argument at commas. */
3257 for (j
= 0; arg
[j
]; j
++)
3260 add_assembler_option (arg
+ prev
, j
- prev
);
3264 /* Record the part after the last comma. */
3265 add_assembler_option (arg
+ prev
, j
- prev
);
3273 /* Pass the rest of this option to the preprocessor. */
3275 /* Split the argument at commas. */
3277 for (j
= 0; arg
[j
]; j
++)
3280 add_preprocessor_option (arg
+ prev
, j
- prev
);
3284 /* Record the part after the last comma. */
3285 add_preprocessor_option (arg
+ prev
, j
- prev
);
3293 /* Split the argument at commas. */
3295 for (j
= 0; arg
[j
]; j
++)
3298 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
3301 /* Record the part after the last comma. */
3302 add_infile (arg
+ prev
, "*");
3308 add_infile (arg
, "*");
3312 case OPT_Xpreprocessor
:
3313 add_preprocessor_option (arg
, strlen (arg
));
3317 case OPT_Xassembler
:
3318 add_assembler_option (arg
, strlen (arg
));
3323 /* POSIX allows separation of -l and the lib arg; canonicalize
3324 by concatenating -l with its arg */
3325 add_infile (concat ("-l", arg
, NULL
), "*");
3330 /* Similarly, canonicalize -L for linkers that may not accept
3331 separate arguments. */
3332 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
);
3335 case OPT_save_temps
:
3336 save_temps_flag
= SAVE_TEMPS_CWD
;
3340 case OPT_save_temps_
:
3341 if (strcmp (arg
, "cwd") == 0)
3342 save_temps_flag
= SAVE_TEMPS_CWD
;
3343 else if (strcmp (arg
, "obj") == 0
3344 || strcmp (arg
, "object") == 0)
3345 save_temps_flag
= SAVE_TEMPS_OBJ
;
3347 fatal_error ("%qs is an unknown -save-temps option",
3348 decoded
->orig_option_with_args_text
);
3351 case OPT_no_canonical_prefixes
:
3352 /* Already handled as a special case, so ignored here. */
3358 /* These options set the variables specified in common.opt
3359 automatically, but do need to be saved for spec
3365 struct user_specs
*user
= XNEW (struct user_specs
);
3367 user
->next
= (struct user_specs
*) 0;
3368 user
->filename
= arg
;
3369 if (user_specs_tail
)
3370 user_specs_tail
->next
= user
;
3372 user_specs_head
= user
;
3373 user_specs_tail
= user
;
3379 target_system_root
= arg
;
3380 target_system_root_changed
= 1;
3385 if (report_times_to_file
)
3386 fclose (report_times_to_file
);
3387 report_times_to_file
= fopen (arg
, "a");
3393 This is similar to -v except that there is no execution
3394 of the commands and the echoed arguments are quoted. It
3395 is intended for use in shell scripts to capture the
3396 driver-generated command line. */
3397 verbose_only_flag
++;
3404 size_t len
= strlen (arg
);
3406 /* Catch the case where the user has forgotten to append a
3407 directory separator to the path. Note, they may be using
3408 -B to add an executable name prefix, eg "i386-elf-", in
3409 order to distinguish between multiple installations of
3410 GCC in the same directory. Hence we must check to see
3411 if appending a directory separator actually makes a
3412 valid directory name. */
3413 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
3414 && is_directory (arg
, false))
3416 char *tmp
= XNEWVEC (char, len
+ 2);
3418 tmp
[len
] = DIR_SEPARATOR
;
3423 add_prefix (&exec_prefixes
, arg
, NULL
,
3424 PREFIX_PRIORITY_B_OPT
, 0, 0);
3425 add_prefix (&startfile_prefixes
, arg
, NULL
,
3426 PREFIX_PRIORITY_B_OPT
, 0, 0);
3427 add_prefix (&include_prefixes
, arg
, NULL
,
3428 PREFIX_PRIORITY_B_OPT
, 0, 0);
3435 if (!strcmp (spec_lang
, "none"))
3436 /* Suppress the warning if -xnone comes after the last input
3437 file, because alternate command interfaces like g++ might
3438 find it useful to place -xnone after each input file. */
3441 last_language_n_infiles
= n_infiles
;
3447 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3448 arg
= convert_filename (arg
, ! have_c
, 0);
3450 /* Save the output name in case -save-temps=obj was used. */
3451 save_temps_prefix
= xstrdup (arg
);
3452 /* On some systems, ld cannot handle "-o" without a space. So
3453 split the option from its argument. */
3454 save_switch ("-o", 1, &arg
, validated
);
3457 case OPT_static_libgcc
:
3458 case OPT_shared_libgcc
:
3459 case OPT_static_libgfortran
:
3460 case OPT_static_libstdc__
:
3461 /* These are always valid, since gcc.c itself understands the
3462 first two, gfortranspec.c understands -static-libgfortran and
3463 g++spec.c understands -static-libstdc++ */
3468 /* Various driver options need no special processing at this
3469 point, having been handled in a prescan above or being
3470 handled by specs. */
3475 save_switch (decoded
->canonical_option
[0],
3476 decoded
->canonical_option_num_elements
- 1,
3477 &decoded
->canonical_option
[1], validated
);
3481 /* Put the driver's standard set of option handlers in *HANDLERS. */
3484 set_option_handlers (struct cl_option_handlers
*handlers
)
3486 handlers
->unknown_option_callback
= driver_unknown_option_callback
;
3487 handlers
->wrong_lang_callback
= driver_wrong_lang_callback
;
3488 handlers
->post_handling_callback
= driver_post_handling_callback
;
3489 handlers
->num_handlers
= 1;
3490 handlers
->handlers
[0].handler
= driver_handle_option
;
3491 handlers
->handlers
[0].mask
= CL_DRIVER
;
3494 /* Create the vector `switches' and its contents.
3495 Store its length in `n_switches'. */
3498 process_command (unsigned int decoded_options_count
,
3499 struct cl_decoded_option
*decoded_options
)
3503 const char *tooldir_prefix
;
3504 char *(*get_relative_prefix
) (const char *, const char *,
3505 const char *) = NULL
;
3506 struct cl_option_handlers handlers
;
3509 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3513 added_libraries
= 0;
3515 /* Figure compiler version from version string. */
3517 compiler_version
= temp1
= xstrdup (version_string
);
3519 for (; *temp1
; ++temp1
)
3528 /* Handle any -no-canonical-prefixes flag early, to assign the function
3529 that builds relative prefixes. This function creates default search
3530 paths that are needed later in normal option handling. */
3532 for (j
= 1; j
< decoded_options_count
; j
++)
3534 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
3536 get_relative_prefix
= make_relative_prefix_ignore_links
;
3540 if (! get_relative_prefix
)
3541 get_relative_prefix
= make_relative_prefix
;
3543 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3544 see if we can create it from the pathname specified in
3545 decoded_options[0].arg. */
3547 gcc_libexec_prefix
= standard_libexec_prefix
;
3549 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3550 if (!gcc_exec_prefix
)
3552 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3553 standard_bindir_prefix
,
3554 standard_exec_prefix
);
3555 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3556 standard_bindir_prefix
,
3557 standard_libexec_prefix
);
3558 if (gcc_exec_prefix
)
3559 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3563 /* make_relative_prefix requires a program name, but
3564 GCC_EXEC_PREFIX is typically a directory name with a trailing
3565 / (which is ignored by make_relative_prefix), so append a
3567 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3568 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
3569 standard_exec_prefix
,
3570 standard_libexec_prefix
);
3572 /* The path is unrelocated, so fallback to the original setting. */
3573 if (!gcc_libexec_prefix
)
3574 gcc_libexec_prefix
= standard_libexec_prefix
;
3580 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3581 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3582 or an automatically created GCC_EXEC_PREFIX from
3583 decoded_options[0].arg. */
3585 /* Do language-specific adjustment/addition of flags. */
3586 lang_specific_driver (&decoded_options
, &decoded_options_count
,
3589 if (gcc_exec_prefix
)
3591 int len
= strlen (gcc_exec_prefix
);
3593 if (len
> (int) sizeof ("/lib/gcc/") - 1
3594 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3596 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3597 if (IS_DIR_SEPARATOR (*temp
)
3598 && strncmp (temp
+ 1, "lib", 3) == 0
3599 && IS_DIR_SEPARATOR (temp
[4])
3600 && strncmp (temp
+ 5, "gcc", 3) == 0)
3601 len
-= sizeof ("/lib/gcc/") - 1;
3604 set_std_prefix (gcc_exec_prefix
, len
);
3605 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3606 PREFIX_PRIORITY_LAST
, 0, 0);
3607 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3608 PREFIX_PRIORITY_LAST
, 0, 0);
3611 /* COMPILER_PATH and LIBRARY_PATH have values
3612 that are lists of directory names with colons. */
3614 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3617 const char *startp
, *endp
;
3618 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3620 startp
= endp
= temp
;
3623 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3625 strncpy (nstore
, startp
, endp
- startp
);
3627 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3628 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3630 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3631 nstore
[endp
- startp
+ 1] = 0;
3634 nstore
[endp
- startp
] = 0;
3635 add_prefix (&exec_prefixes
, nstore
, 0,
3636 PREFIX_PRIORITY_LAST
, 0, 0);
3637 add_prefix (&include_prefixes
, nstore
, 0,
3638 PREFIX_PRIORITY_LAST
, 0, 0);
3641 endp
= startp
= endp
+ 1;
3648 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3649 if (temp
&& *cross_compile
== '0')
3651 const char *startp
, *endp
;
3652 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3654 startp
= endp
= temp
;
3657 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3659 strncpy (nstore
, startp
, endp
- startp
);
3661 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3662 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3664 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3665 nstore
[endp
- startp
+ 1] = 0;
3668 nstore
[endp
- startp
] = 0;
3669 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3670 PREFIX_PRIORITY_LAST
, 0, 1);
3673 endp
= startp
= endp
+ 1;
3680 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3681 GET_ENVIRONMENT (temp
, "LPATH");
3682 if (temp
&& *cross_compile
== '0')
3684 const char *startp
, *endp
;
3685 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3687 startp
= endp
= temp
;
3690 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3692 strncpy (nstore
, startp
, endp
- startp
);
3694 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3695 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3697 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3698 nstore
[endp
- startp
+ 1] = 0;
3701 nstore
[endp
- startp
] = 0;
3702 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3703 PREFIX_PRIORITY_LAST
, 0, 1);
3706 endp
= startp
= endp
+ 1;
3713 /* Process the options and store input files and switches in their
3716 last_language_n_infiles
= -1;
3718 set_option_handlers (&handlers
);
3720 for (j
= 1; j
< decoded_options_count
; j
++)
3722 switch (decoded_options
[j
].opt_index
)
3734 for (j
= 1; j
< decoded_options_count
; j
++)
3736 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
3738 const char *arg
= decoded_options
[j
].arg
;
3739 const char *p
= strrchr (arg
, '@');
3743 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3744 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
3746 /* For LTO static archive support we handle input file
3747 specifications that are composed of a filename and
3748 an offset like FNAME@OFFSET. */
3751 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
3752 && strlen (p
) == (unsigned int)consumed
)
3754 fname
= (char *)xmalloc (p
- arg
+ 1);
3755 memcpy (fname
, arg
, p
- arg
);
3756 fname
[p
- arg
] = '\0';
3757 /* Only accept non-stdin and existing FNAME parts, otherwise
3758 try with the full name. */
3759 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
3762 fname
= xstrdup (arg
);
3766 fname
= xstrdup (arg
);
3768 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
3769 perror_with_name (fname
);
3771 add_infile (arg
, spec_lang
);
3777 read_cmdline_option (&global_options
, &global_options_set
,
3778 decoded_options
+ j
, UNKNOWN_LOCATION
,
3779 CL_DRIVER
, &handlers
, global_dc
);
3782 /* If -save-temps=obj and -o name, create the prefix to use for %b.
3783 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
3784 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
3786 save_temps_length
= strlen (save_temps_prefix
);
3787 temp
= strrchr (lbasename (save_temps_prefix
), '.');
3790 save_temps_length
-= strlen (temp
);
3791 save_temps_prefix
[save_temps_length
] = '\0';
3795 else if (save_temps_prefix
!= NULL
)
3797 free (save_temps_prefix
);
3798 save_temps_prefix
= NULL
;
3801 if (save_temps_flag
&& use_pipes
)
3803 /* -save-temps overrides -pipe, so that temp files are produced */
3804 if (save_temps_flag
)
3805 warning (0, "-pipe ignored because -save-temps specified");
3811 const char *gcd
= getenv ("GCC_COMPARE_DEBUG");
3813 if (gcd
&& gcd
[0] == '-')
3816 compare_debug_opt
= gcd
;
3818 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
3821 compare_debug_opt
= "-gtoggle";
3824 else if (compare_debug
< 0)
3827 gcc_assert (!compare_debug_opt
);
3830 /* Set up the search paths. We add directories that we expect to
3831 contain GNU Toolchain components before directories specified by
3832 the machine description so that we will find GNU components (like
3833 the GNU assembler) before those of the host system. */
3835 /* If we don't know where the toolchain has been installed, use the
3836 configured-in locations. */
3837 if (!gcc_exec_prefix
)
3840 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
3841 PREFIX_PRIORITY_LAST
, 1, 0);
3842 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
3843 PREFIX_PRIORITY_LAST
, 2, 0);
3844 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3845 PREFIX_PRIORITY_LAST
, 2, 0);
3847 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3848 PREFIX_PRIORITY_LAST
, 1, 0);
3851 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
3852 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3853 dir_separator_str
, NULL
);
3855 /* Look for tools relative to the location from which the driver is
3856 running, or, if that is not available, the configured prefix. */
3858 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
3859 spec_machine
, dir_separator_str
,
3860 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3862 add_prefix (&exec_prefixes
,
3863 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3864 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
3865 add_prefix (&startfile_prefixes
,
3866 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3867 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
3869 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
3870 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
3871 then consider it to relocate with the rest of the GCC installation
3872 if GCC_EXEC_PREFIX is set.
3873 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
3874 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
3876 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3877 standard_bindir_prefix
,
3878 target_system_root
);
3879 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
3881 target_system_root
= tmp_prefix
;
3882 target_system_root_changed
= 1;
3887 /* More prefixes are enabled in main, after we read the specs file
3888 and determine whether this is cross-compilation or not. */
3890 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
3891 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
3893 if (compare_debug
== 2 || compare_debug
== 3)
3896 switches
[n_switches
].part1
= concat ("fcompare-debug=",
3899 switches
[n_switches
].args
= 0;
3900 switches
[n_switches
].live_cond
= 0;
3901 switches
[n_switches
].validated
= 0;
3902 switches
[n_switches
].ordering
= 0;
3907 /* Ensure we only invoke each subprocess once. */
3908 if (print_subprocess_help
|| print_help_list
|| print_version
)
3912 /* Create a dummy input file, so that we can pass
3913 the help option on to the various sub-processes. */
3914 add_infile ("help-dummy", "c");
3918 switches
[n_switches
].part1
= 0;
3920 infiles
[n_infiles
].name
= 0;
3923 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
3924 and place that in the environment. */
3927 set_collect_gcc_options (void)
3932 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
3934 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
3935 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
3938 for (i
= 0; (int) i
< n_switches
; i
++)
3940 const char *const *args
;
3943 obstack_grow (&collect_obstack
, " ", 1);
3947 /* Ignore elided switches. */
3948 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) != 0)
3951 obstack_grow (&collect_obstack
, "'-", 2);
3952 q
= switches
[i
].part1
;
3953 while ((p
= strchr (q
, '\'')))
3955 obstack_grow (&collect_obstack
, q
, p
- q
);
3956 obstack_grow (&collect_obstack
, "'\\''", 4);
3959 obstack_grow (&collect_obstack
, q
, strlen (q
));
3960 obstack_grow (&collect_obstack
, "'", 1);
3962 for (args
= switches
[i
].args
; args
&& *args
; args
++)
3964 obstack_grow (&collect_obstack
, " '", 2);
3966 while ((p
= strchr (q
, '\'')))
3968 obstack_grow (&collect_obstack
, q
, p
- q
);
3969 obstack_grow (&collect_obstack
, "'\\''", 4);
3972 obstack_grow (&collect_obstack
, q
, strlen (q
));
3973 obstack_grow (&collect_obstack
, "'", 1);
3976 obstack_grow (&collect_obstack
, "\0", 1);
3977 xputenv (XOBFINISH (&collect_obstack
, char *));
3980 /* Process a spec string, accumulating and running commands. */
3982 /* These variables describe the input file name.
3983 input_file_number is the index on outfiles of this file,
3984 so that the output file name can be stored for later use by %o.
3985 input_basename is the start of the part of the input file
3986 sans all directory names, and basename_length is the number
3987 of characters starting there excluding the suffix .c or whatever. */
3989 static const char *gcc_input_filename
;
3990 static int input_file_number
;
3991 size_t input_filename_length
;
3992 static int basename_length
;
3993 static int suffixed_basename_length
;
3994 static const char *input_basename
;
3995 static const char *input_suffix
;
3996 #ifndef HOST_LACKS_INODE_NUMBERS
3997 static struct stat input_stat
;
3999 static int input_stat_set
;
4001 /* The compiler used to process the current input file. */
4002 static struct compiler
*input_file_compiler
;
4004 /* These are variables used within do_spec and do_spec_1. */
4006 /* Nonzero if an arg has been started and not yet terminated
4007 (with space, tab or newline). */
4008 static int arg_going
;
4010 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4011 is a temporary file name. */
4012 static int delete_this_arg
;
4014 /* Nonzero means %w has been seen; the next arg to be terminated
4015 is the output file name of this compilation. */
4016 static int this_is_output_file
;
4018 /* Nonzero means %s has been seen; the next arg to be terminated
4019 is the name of a library file and we should try the standard
4020 search dirs for it. */
4021 static int this_is_library_file
;
4023 /* Nonzero means %T has been seen; the next arg to be terminated
4024 is the name of a linker script and we should try all of the
4025 standard search dirs for it. If it is found insert a --script
4026 command line switch and then substitute the full path in place,
4027 otherwise generate an error message. */
4028 static int this_is_linker_script
;
4030 /* Nonzero means that the input of this command is coming from a pipe. */
4031 static int input_from_pipe
;
4033 /* Nonnull means substitute this for any suffix when outputting a switches
4035 static const char *suffix_subst
;
4037 /* If there is an argument being accumulated, terminate it and store it. */
4040 end_going_arg (void)
4046 obstack_1grow (&obstack
, 0);
4047 string
= XOBFINISH (&obstack
, const char *);
4048 if (this_is_library_file
)
4049 string
= find_file (string
);
4050 if (this_is_linker_script
)
4052 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4054 if (full_script_path
== NULL
)
4056 error ("unable to locate default linker script %qs in the library search paths", string
);
4057 /* Script was not found on search path. */
4060 store_arg ("--script", false, false);
4061 string
= full_script_path
;
4063 store_arg (string
, delete_this_arg
, this_is_output_file
);
4064 if (this_is_output_file
)
4065 outfiles
[input_file_number
] = string
;
4071 /* Parse the WRAPPER string which is a comma separated list of the command line
4072 and insert them into the beginning of argbuf. */
4075 insert_wrapper (const char *wrapper
)
4079 char *buf
= xstrdup (wrapper
);
4081 unsigned int old_length
= VEC_length (const_char_p
, argbuf
);
4089 while ((p
= strchr (p
, ',')) != NULL
);
4091 VEC_safe_grow (const_char_p
, heap
, argbuf
, old_length
+ n
);
4092 memmove (VEC_address (const_char_p
, argbuf
) + n
,
4093 VEC_address (const_char_p
, argbuf
),
4094 old_length
* sizeof (const_char_p
));
4105 VEC_replace (const_char_p
, argbuf
, i
, p
);
4108 while ((p
= strchr (p
, ',')) != NULL
);
4109 gcc_assert (i
== n
);
4112 /* Process the spec SPEC and run the commands specified therein.
4113 Returns 0 if the spec is successfully processed; -1 if failed. */
4116 do_spec (const char *spec
)
4120 value
= do_spec_2 (spec
);
4122 /* Force out any unfinished command.
4123 If -pipe, this forces out the last command if it ended in `|'. */
4126 if (VEC_length (const_char_p
, argbuf
) > 0
4127 && !strcmp (VEC_last (const_char_p
, argbuf
), "|"))
4128 VEC_pop (const_char_p
, argbuf
);
4130 set_collect_gcc_options ();
4132 if (VEC_length (const_char_p
, argbuf
) > 0)
4140 do_spec_2 (const char *spec
)
4146 delete_this_arg
= 0;
4147 this_is_output_file
= 0;
4148 this_is_library_file
= 0;
4149 this_is_linker_script
= 0;
4150 input_from_pipe
= 0;
4151 suffix_subst
= NULL
;
4153 result
= do_spec_1 (spec
, 0, NULL
);
4161 /* Process the given spec string and add any new options to the end
4162 of the switches/n_switches array. */
4165 do_option_spec (const char *name
, const char *spec
)
4167 unsigned int i
, value_count
, value_len
;
4168 const char *p
, *q
, *value
;
4169 char *tmp_spec
, *tmp_spec_p
;
4171 if (configure_default_options
[0].name
== NULL
)
4174 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4175 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4177 if (i
== ARRAY_SIZE (configure_default_options
))
4180 value
= configure_default_options
[i
].value
;
4181 value_len
= strlen (value
);
4183 /* Compute the size of the final spec. */
4186 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4192 /* Replace each %(VALUE) by the specified value. */
4193 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4194 + value_count
* (value_len
- strlen ("%(VALUE)")));
4195 tmp_spec_p
= tmp_spec
;
4197 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4199 memcpy (tmp_spec_p
, q
, p
- q
);
4200 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4201 memcpy (tmp_spec_p
, value
, value_len
);
4202 tmp_spec_p
+= value_len
;
4203 q
= p
+ strlen ("%(VALUE)");
4205 strcpy (tmp_spec_p
, q
);
4207 do_self_spec (tmp_spec
);
4210 /* Process the given spec string and add any new options to the end
4211 of the switches/n_switches array. */
4214 do_self_spec (const char *spec
)
4219 do_spec_1 (" ", 0, NULL
);
4221 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
4222 do_self_specs adds the replacements to switches array, so it shouldn't
4223 be processed afterwards. */
4224 for (i
= 0; i
< n_switches
; i
++)
4225 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
4226 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
4228 if (VEC_length (const_char_p
, argbuf
) > 0)
4230 const char **argbuf_copy
;
4231 struct cl_decoded_option
*decoded_options
;
4232 struct cl_option_handlers handlers
;
4233 unsigned int decoded_options_count
;
4236 /* Create a copy of argbuf with a dummy argv[0] entry for
4237 decode_cmdline_options_to_array. */
4238 argbuf_copy
= XNEWVEC (const char *,
4239 VEC_length (const_char_p
, argbuf
) + 1);
4240 argbuf_copy
[0] = "";
4241 memcpy (argbuf_copy
+ 1, VEC_address (const_char_p
, argbuf
),
4242 VEC_length (const_char_p
, argbuf
) * sizeof (const char *));
4244 decode_cmdline_options_to_array (VEC_length (const_char_p
, argbuf
) + 1,
4246 CL_DRIVER
, &decoded_options
,
4247 &decoded_options_count
);
4249 set_option_handlers (&handlers
);
4251 for (j
= 1; j
< decoded_options_count
; j
++)
4253 switch (decoded_options
[j
].opt_index
)
4255 case OPT_SPECIAL_input_file
:
4256 /* Specs should only generate options, not input
4258 if (strcmp (decoded_options
[j
].arg
, "-") != 0)
4259 fatal_error ("switch %qs does not start with %<-%>",
4260 decoded_options
[j
].arg
);
4262 fatal_error ("spec-generated switch is just %<-%>");
4265 case OPT_fcompare_debug_second
:
4266 case OPT_fcompare_debug
:
4267 case OPT_fcompare_debug_
:
4269 /* Avoid duplicate processing of some options from
4270 compare-debug specs; just save them here. */
4271 save_switch (decoded_options
[j
].canonical_option
[0],
4272 (decoded_options
[j
].canonical_option_num_elements
4274 &decoded_options
[j
].canonical_option
[1], false);
4278 read_cmdline_option (&global_options
, &global_options_set
,
4279 decoded_options
+ j
, UNKNOWN_LOCATION
,
4280 CL_DRIVER
, &handlers
, global_dc
);
4286 switches
[n_switches
].part1
= 0;
4290 /* Callback for processing %D and %I specs. */
4292 struct spec_path_info
{
4297 bool separate_options
;
4301 spec_path (char *path
, void *data
)
4303 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
4307 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4310 if (info
->append_len
!= 0)
4312 len
= strlen (path
);
4313 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4316 if (!is_directory (path
, true))
4319 do_spec_1 (info
->option
, 1, NULL
);
4320 if (info
->separate_options
)
4321 do_spec_1 (" ", 0, NULL
);
4323 if (info
->append_len
== 0)
4325 len
= strlen (path
);
4326 save
= path
[len
- 1];
4327 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4328 path
[len
- 1] = '\0';
4331 do_spec_1 (path
, 1, NULL
);
4332 do_spec_1 (" ", 0, NULL
);
4334 /* Must not damage the original path. */
4335 if (info
->append_len
== 0)
4336 path
[len
- 1] = save
;
4341 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
4345 create_at_file (char **argv
)
4347 char *temp_file
= make_temp_file ("");
4348 char *at_argument
= concat ("@", temp_file
, NULL
);
4349 FILE *f
= fopen (temp_file
, "w");
4353 fatal_error ("could not open temporary response file %s",
4356 status
= writeargv (argv
, f
);
4359 fatal_error ("could not write to temporary response file %s",
4362 status
= fclose (f
);
4365 fatal_error ("could not close temporary response file %s",
4368 store_arg (at_argument
, 0, 0);
4370 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
4373 /* True if we should compile INFILE. */
4376 compile_input_file_p (struct infile
*infile
)
4378 if ((!infile
->language
) || (infile
->language
[0] != '*'))
4379 if (infile
->incompiler
== input_file_compiler
)
4384 /* Process each member of VEC as a spec. */
4387 do_specs_vec (VEC(char_p
,heap
) *vec
)
4392 FOR_EACH_VEC_ELT (char_p
, vec
, ix
, opt
)
4394 do_spec_1 (opt
, 1, NULL
);
4395 /* Make each accumulated option a separate argument. */
4396 do_spec_1 (" ", 0, NULL
);
4400 /* Process the sub-spec SPEC as a portion of a larger spec.
4401 This is like processing a whole spec except that we do
4402 not initialize at the beginning and we do not supply a
4403 newline by default at the end.
4404 INSWITCH nonzero means don't process %-sequences in SPEC;
4405 in this case, % is treated as an ordinary character.
4406 This is used while substituting switches.
4407 INSWITCH nonzero also causes SPC not to terminate an argument.
4409 Value is zero unless a line was finished
4410 and the command on that line reported an error. */
4413 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4415 const char *p
= spec
;
4421 /* If substituting a switch, treat all chars like letters.
4422 Otherwise, NL, SPC, TAB and % are special. */
4423 switch (inswitch
? 'a' : c
)
4428 if (VEC_length (const_char_p
, argbuf
) > 0
4429 && !strcmp (VEC_last (const_char_p
, argbuf
), "|"))
4431 /* A `|' before the newline means use a pipe here,
4432 but only if -pipe was specified.
4433 Otherwise, execute now and don't pass the `|' as an arg. */
4436 input_from_pipe
= 1;
4440 VEC_pop (const_char_p
, argbuf
);
4443 set_collect_gcc_options ();
4445 if (VEC_length (const_char_p
, argbuf
) > 0)
4451 /* Reinitialize for a new command, and for a new argument. */
4454 delete_this_arg
= 0;
4455 this_is_output_file
= 0;
4456 this_is_library_file
= 0;
4457 this_is_linker_script
= 0;
4458 input_from_pipe
= 0;
4465 obstack_1grow (&obstack
, c
);
4473 /* Reinitialize for a new argument. */
4474 delete_this_arg
= 0;
4475 this_is_output_file
= 0;
4476 this_is_library_file
= 0;
4477 this_is_linker_script
= 0;
4484 fatal_error ("spec %qs invalid", spec
);
4487 if (save_temps_length
)
4488 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4490 obstack_grow (&obstack
, input_basename
, basename_length
);
4491 if (compare_debug
< 0)
4492 obstack_grow (&obstack
, ".gk", 3);
4497 if (save_temps_length
)
4498 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4500 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4501 if (compare_debug
< 0)
4502 obstack_grow (&obstack
, ".gk", 3);
4507 delete_this_arg
= 2;
4510 /* Dump out the directories specified with LIBRARY_PATH,
4511 followed by the absolute directories
4512 that we search for startfiles. */
4515 struct spec_path_info info
;
4518 info
.append_len
= 0;
4519 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4520 /* Used on systems which record the specified -L dirs
4521 and use them to search for dynamic linking.
4522 Relative directories always come from -B,
4523 and it is better not to use them for searching
4524 at run time. In particular, stage1 loses. */
4525 info
.omit_relative
= true;
4527 info
.omit_relative
= false;
4529 info
.separate_options
= false;
4531 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
4536 /* %efoo means report an error with `foo' as error message
4537 and don't execute any more commands for this file. */
4541 while (*p
!= 0 && *p
!= '\n')
4543 buf
= (char *) alloca (p
- q
+ 1);
4544 strncpy (buf
, q
, p
- q
);
4546 error ("%s", _(buf
));
4551 /* %nfoo means report a notice with `foo' on stderr. */
4555 while (*p
!= 0 && *p
!= '\n')
4557 buf
= (char *) alloca (p
- q
+ 1);
4558 strncpy (buf
, q
, p
- q
);
4560 inform (0, "%s", _(buf
));
4570 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4571 defined, and it is not a directory, and it is
4572 writable, use it. Otherwise, treat this like any
4573 other temporary file. */
4575 if ((!save_temps_flag
)
4576 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4577 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4579 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4580 strlen (HOST_BIT_BUCKET
));
4581 delete_this_arg
= 0;
4586 goto create_temp_file
;
4590 obstack_1grow (&obstack
, '-');
4591 delete_this_arg
= 0;
4594 /* consume suffix */
4595 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4597 if (p
[0] == '%' && p
[1] == 'O')
4602 goto create_temp_file
;
4606 /* consume suffix */
4607 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4609 if (p
[0] == '%' && p
[1] == 'O')
4614 goto create_temp_file
;
4620 struct temp_name
*t
;
4622 const char *suffix
= p
;
4623 char *saved_suffix
= NULL
;
4625 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4627 suffix_length
= p
- suffix
;
4628 if (p
[0] == '%' && p
[1] == 'O')
4631 /* We don't support extra suffix characters after %O. */
4632 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
4633 fatal_error ("spec %qs has invalid %<%%0%c%>", spec
, *p
);
4634 if (suffix_length
== 0)
4635 suffix
= TARGET_OBJECT_SUFFIX
;
4639 = XNEWVEC (char, suffix_length
4640 + strlen (TARGET_OBJECT_SUFFIX
));
4641 strncpy (saved_suffix
, suffix
, suffix_length
);
4642 strcpy (saved_suffix
+ suffix_length
,
4643 TARGET_OBJECT_SUFFIX
);
4645 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4648 if (compare_debug
< 0)
4650 suffix
= concat (".gk", suffix
, NULL
);
4654 /* If -save-temps=obj and -o were specified, use that for the
4656 if (save_temps_length
)
4659 temp_filename_length
4660 = save_temps_length
+ suffix_length
+ 1;
4661 tmp
= (char *) alloca (temp_filename_length
);
4662 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
4663 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
4664 tmp
[save_temps_length
+ suffix_length
] = '\0';
4665 temp_filename
= save_string (tmp
,
4666 temp_filename_length
+ 1);
4667 obstack_grow (&obstack
, temp_filename
,
4668 temp_filename_length
);
4670 delete_this_arg
= 0;
4674 /* If the gcc_input_filename has the same suffix specified
4675 for the %g, %u, or %U, and -save-temps is specified,
4676 we could end up using that file as an intermediate
4677 thus clobbering the user's source file (.e.g.,
4678 gcc -save-temps foo.s would clobber foo.s with the
4679 output of cpp0). So check for this condition and
4680 generate a temp file as the intermediate. */
4682 if (save_temps_flag
)
4685 temp_filename_length
= basename_length
+ suffix_length
+ 1;
4686 tmp
= (char *) alloca (temp_filename_length
);
4687 memcpy (tmp
, input_basename
, basename_length
);
4688 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
4689 tmp
[basename_length
+ suffix_length
] = '\0';
4690 temp_filename
= tmp
;
4692 if (strcmp (temp_filename
, gcc_input_filename
) != 0)
4694 #ifndef HOST_LACKS_INODE_NUMBERS
4695 struct stat st_temp
;
4697 /* Note, set_input() resets input_stat_set to 0. */
4698 if (input_stat_set
== 0)
4700 input_stat_set
= stat (gcc_input_filename
,
4702 if (input_stat_set
>= 0)
4706 /* If we have the stat for the gcc_input_filename
4707 and we can do the stat for the temp_filename
4708 then the they could still refer to the same
4709 file if st_dev/st_ino's are the same. */
4710 if (input_stat_set
!= 1
4711 || stat (temp_filename
, &st_temp
) < 0
4712 || input_stat
.st_dev
!= st_temp
.st_dev
4713 || input_stat
.st_ino
!= st_temp
.st_ino
)
4715 /* Just compare canonical pathnames. */
4716 char* input_realname
= lrealpath (gcc_input_filename
);
4717 char* temp_realname
= lrealpath (temp_filename
);
4718 bool files_differ
= strcmp (input_realname
, temp_realname
);
4719 free (input_realname
);
4720 free (temp_realname
);
4724 temp_filename
= save_string (temp_filename
,
4725 temp_filename_length
+ 1);
4726 obstack_grow (&obstack
, temp_filename
,
4727 temp_filename_length
);
4729 delete_this_arg
= 0;
4735 /* See if we already have an association of %g/%u/%U and
4737 for (t
= temp_names
; t
; t
= t
->next
)
4738 if (t
->length
== suffix_length
4739 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4740 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4743 /* Make a new association if needed. %u and %j
4745 if (t
== 0 || c
== 'u' || c
== 'j')
4749 t
= XNEW (struct temp_name
);
4750 t
->next
= temp_names
;
4753 t
->length
= suffix_length
;
4756 t
->suffix
= saved_suffix
;
4757 saved_suffix
= NULL
;
4760 t
->suffix
= save_string (suffix
, suffix_length
);
4761 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4762 temp_filename
= make_temp_file (t
->suffix
);
4763 temp_filename_length
= strlen (temp_filename
);
4764 t
->filename
= temp_filename
;
4765 t
->filename_length
= temp_filename_length
;
4769 free (saved_suffix
);
4771 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4772 delete_this_arg
= 1;
4780 if (at_file_supplied
)
4782 /* We are going to expand `%i' to `@FILE', where FILE
4783 is a newly-created temporary filename. The filenames
4784 that would usually be expanded in place of %o will be
4785 written to the temporary file. */
4790 for (i
= 0; i
< n_infiles
; i
++)
4791 if (compile_input_file_p (&infiles
[i
]))
4794 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
4796 /* Copy the strings over. */
4797 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
4798 if (compile_input_file_p (&infiles
[i
]))
4800 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
4801 infiles
[i
].compiled
= true;
4806 create_at_file (argv
);
4809 for (i
= 0; (int) i
< n_infiles
; i
++)
4810 if (compile_input_file_p (&infiles
[i
]))
4812 store_arg (infiles
[i
].name
, 0, 0);
4813 infiles
[i
].compiled
= true;
4818 obstack_grow (&obstack
, gcc_input_filename
,
4819 input_filename_length
);
4826 struct spec_path_info info
;
4830 do_spec_1 ("-imultilib", 1, NULL
);
4831 /* Make this a separate argument. */
4832 do_spec_1 (" ", 0, NULL
);
4833 do_spec_1 (multilib_dir
, 1, NULL
);
4834 do_spec_1 (" ", 0, NULL
);
4837 if (gcc_exec_prefix
)
4839 do_spec_1 ("-iprefix", 1, NULL
);
4840 /* Make this a separate argument. */
4841 do_spec_1 (" ", 0, NULL
);
4842 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4843 do_spec_1 (" ", 0, NULL
);
4846 if (target_system_root_changed
||
4847 (target_system_root
&& target_sysroot_hdrs_suffix
))
4849 do_spec_1 ("-isysroot", 1, NULL
);
4850 /* Make this a separate argument. */
4851 do_spec_1 (" ", 0, NULL
);
4852 do_spec_1 (target_system_root
, 1, NULL
);
4853 if (target_sysroot_hdrs_suffix
)
4854 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4855 do_spec_1 (" ", 0, NULL
);
4858 info
.option
= "-isystem";
4859 info
.append
= "include";
4860 info
.append_len
= strlen (info
.append
);
4861 info
.omit_relative
= false;
4862 info
.separate_options
= true;
4864 for_each_path (&include_prefixes
, false, info
.append_len
,
4867 info
.append
= "include-fixed";
4868 if (*sysroot_hdrs_suffix_spec
)
4869 info
.append
= concat (info
.append
, dir_separator_str
,
4870 multilib_dir
, NULL
);
4871 info
.append_len
= strlen (info
.append
);
4872 for_each_path (&include_prefixes
, false, info
.append_len
,
4879 int max
= n_infiles
;
4880 max
+= lang_specific_extra_outfiles
;
4882 if (HAVE_GNU_LD
&& at_file_supplied
)
4884 /* We are going to expand `%o' to `@FILE', where FILE
4885 is a newly-created temporary filename. The filenames
4886 that would usually be expanded in place of %o will be
4887 written to the temporary file. */
4892 /* Convert OUTFILES into a form suitable for writeargv. */
4894 /* Determine how many are non-NULL. */
4895 for (n_files
= 0, i
= 0; i
< max
; i
++)
4896 n_files
+= outfiles
[i
] != NULL
;
4898 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
4900 /* Copy the strings over. */
4901 for (i
= 0, j
= 0; i
< max
; i
++)
4904 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
4909 create_at_file (argv
);
4912 for (i
= 0; i
< max
; i
++)
4914 store_arg (outfiles
[i
], 0, 0);
4919 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4924 this_is_library_file
= 1;
4928 this_is_linker_script
= 1;
4932 outfiles
[input_file_number
] = NULL
;
4936 this_is_output_file
= 1;
4941 unsigned int cur_index
= VEC_length (const_char_p
, argbuf
);
4942 /* Handle the {...} following the %W. */
4944 fatal_error ("spec %qs has invalid %<%%W%c%>", spec
, *p
);
4945 p
= handle_braces (p
+ 1);
4949 /* If any args were output, mark the last one for deletion
4951 if (VEC_length (const_char_p
, argbuf
) != cur_index
)
4952 record_temp_file (VEC_last (const_char_p
, argbuf
), 0, 1);
4956 /* %x{OPTION} records OPTION for %X to output. */
4964 /* Skip past the option value and make a copy. */
4966 fatal_error ("spec %qs has invalid %<%%x%c%>", spec
, *p
);
4969 string
= save_string (p1
+ 1, p
- p1
- 2);
4971 /* See if we already recorded this option. */
4972 FOR_EACH_VEC_ELT (char_p
, linker_options
, ix
, opt
)
4973 if (! strcmp (string
, opt
))
4979 /* This option is new; add it. */
4980 add_linker_option (string
, strlen (string
));
4984 /* Dump out the options accumulated previously using %x. */
4986 do_specs_vec (linker_options
);
4989 /* Dump out the options accumulated previously using -Wa,. */
4991 do_specs_vec (assembler_options
);
4994 /* Dump out the options accumulated previously using -Wp,. */
4996 do_specs_vec (preprocessor_options
);
4999 /* Here are digits and numbers that just process
5000 a certain constant string as a spec. */
5003 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5009 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5015 value
= do_spec_1 (asm_spec
, 0, NULL
);
5021 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5028 const char *const spec
5029 = (input_file_compiler
->cpp_spec
5030 ? input_file_compiler
->cpp_spec
5032 value
= do_spec_1 (spec
, 0, NULL
);
5039 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5045 value
= do_spec_1 (link_spec
, 0, NULL
);
5051 value
= do_spec_1 (lib_spec
, 0, NULL
);
5057 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5063 /* We assume there is a directory
5064 separator at the end of this string. */
5065 if (target_system_root
)
5067 obstack_grow (&obstack
, target_system_root
,
5068 strlen (target_system_root
));
5069 if (target_sysroot_suffix
)
5070 obstack_grow (&obstack
, target_sysroot_suffix
,
5071 strlen (target_sysroot_suffix
));
5076 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5081 /* Here we define characters other than letters and digits. */
5084 p
= handle_braces (p
);
5090 p
= handle_spec_function (p
);
5096 obstack_1grow (&obstack
, '%');
5103 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5105 suffix_subst
= save_string (p
- 1, len
+ 1);
5110 /* Henceforth ignore the option(s) matching the pattern
5115 int have_wildcard
= 0;
5118 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5121 if (p
[len
-1] == '*')
5124 for (i
= 0; i
< n_switches
; i
++)
5125 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5126 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5128 switches
[i
].live_cond
|= SWITCH_IGNORE
;
5129 switches
[i
].validated
= 1;
5137 if (soft_matched_part
)
5139 do_spec_1 (soft_matched_part
, 1, NULL
);
5140 do_spec_1 (" ", 0, NULL
);
5143 /* Catch the case where a spec string contains something like
5144 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5145 hand side of the :. */
5146 error ("spec failure: %<%%*%> has not been initialized by pattern match");
5149 /* Process a string found as the value of a spec given by name.
5150 This feature allows individual machine descriptions
5151 to add and use their own specs.
5152 %[...] modifies -D options the way %P does;
5153 %(...) uses the spec unmodified. */
5155 warning (0, "use of obsolete %%[ operator in specs");
5158 const char *name
= p
;
5159 struct spec_list
*sl
;
5162 /* The string after the S/P is the name of a spec that is to be
5164 while (*p
&& *p
!= ')' && *p
!= ']')
5167 /* See if it's in the list. */
5168 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5169 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5171 name
= *(sl
->ptr_spec
);
5173 fnotice (stderr
, "Processing spec %c%s%c, which is '%s'\n",
5174 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5183 value
= do_spec_1 (name
, 0, NULL
);
5189 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
5191 const char *y
= name
;
5194 /* Copy all of NAME into BUF, but put __ after
5195 every -D and at the end of each arg. */
5198 if (! strncmp (y
, "-D", 2))
5209 && (*y
== ' ' || *y
== '\t' || *y
== '='
5210 || *y
== '}' || *y
== 0))
5223 value
= do_spec_1 (buf
, 0, NULL
);
5229 /* Discard the closing paren or bracket. */
5236 error ("spec failure: unrecognized spec option %qc", c
);
5242 /* Backslash: treat next character as ordinary. */
5247 /* Ordinary character: put it into the current argument. */
5248 obstack_1grow (&obstack
, c
);
5252 /* End of string. If we are processing a spec function, we need to
5253 end any pending argument. */
5254 if (processing_spec_function
)
5260 /* Look up a spec function. */
5262 static const struct spec_function
*
5263 lookup_spec_function (const char *name
)
5265 const struct spec_function
*sf
;
5267 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5268 if (strcmp (sf
->name
, name
) == 0)
5274 /* Evaluate a spec function. */
5277 eval_spec_function (const char *func
, const char *args
)
5279 const struct spec_function
*sf
;
5280 const char *funcval
;
5282 /* Saved spec processing context. */
5283 VEC(const_char_p
,heap
) *save_argbuf
;
5286 int save_delete_this_arg
;
5287 int save_this_is_output_file
;
5288 int save_this_is_library_file
;
5289 int save_input_from_pipe
;
5290 int save_this_is_linker_script
;
5291 const char *save_suffix_subst
;
5294 sf
= lookup_spec_function (func
);
5296 fatal_error ("unknown spec function %qs", func
);
5298 /* Push the spec processing context. */
5299 save_argbuf
= argbuf
;
5301 save_arg_going
= arg_going
;
5302 save_delete_this_arg
= delete_this_arg
;
5303 save_this_is_output_file
= this_is_output_file
;
5304 save_this_is_library_file
= this_is_library_file
;
5305 save_this_is_linker_script
= this_is_linker_script
;
5306 save_input_from_pipe
= input_from_pipe
;
5307 save_suffix_subst
= suffix_subst
;
5309 /* Create a new spec processing context, and build the function
5313 if (do_spec_2 (args
) < 0)
5314 fatal_error ("error in args to spec function %qs", func
);
5316 /* argbuf_index is an index for the next argument to be inserted, and
5317 so contains the count of the args already inserted. */
5319 funcval
= (*sf
->func
) (VEC_length (const_char_p
, argbuf
),
5320 VEC_address (const_char_p
, argbuf
));
5322 /* Pop the spec processing context. */
5323 VEC_free (const_char_p
, heap
, argbuf
);
5324 argbuf
= save_argbuf
;
5326 arg_going
= save_arg_going
;
5327 delete_this_arg
= save_delete_this_arg
;
5328 this_is_output_file
= save_this_is_output_file
;
5329 this_is_library_file
= save_this_is_library_file
;
5330 this_is_linker_script
= save_this_is_linker_script
;
5331 input_from_pipe
= save_input_from_pipe
;
5332 suffix_subst
= save_suffix_subst
;
5337 /* Handle a spec function call of the form:
5341 ARGS is processed as a spec in a separate context and split into an
5342 argument vector in the normal fashion. The function returns a string
5343 containing a spec which we then process in the caller's context, or
5344 NULL if no processing is required. */
5347 handle_spec_function (const char *p
)
5350 const char *endp
, *funcval
;
5353 processing_spec_function
++;
5355 /* Get the function name. */
5356 for (endp
= p
; *endp
!= '\0'; endp
++)
5358 if (*endp
== '(') /* ) */
5360 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5361 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5362 fatal_error ("malformed spec function name");
5364 if (*endp
!= '(') /* ) */
5365 fatal_error ("no arguments for spec function");
5366 func
= save_string (p
, endp
- p
);
5369 /* Get the arguments. */
5370 for (count
= 0; *endp
!= '\0'; endp
++)
5379 else if (*endp
== '(') /* ) */
5384 fatal_error ("malformed spec function arguments");
5385 args
= save_string (p
, endp
- p
);
5388 /* p now points to just past the end of the spec function expression. */
5390 funcval
= eval_spec_function (func
, args
);
5391 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5397 processing_spec_function
--;
5402 /* Inline subroutine of handle_braces. Returns true if the current
5403 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5405 input_suffix_matches (const char *atom
, const char *end_atom
)
5407 return (input_suffix
5408 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5409 && input_suffix
[end_atom
- atom
] == '\0');
5412 /* Subroutine of handle_braces. Returns true if the current
5413 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
5415 input_spec_matches (const char *atom
, const char *end_atom
)
5417 return (input_file_compiler
5418 && input_file_compiler
->suffix
5419 && input_file_compiler
->suffix
[0] != '\0'
5420 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
5422 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
5425 /* Subroutine of handle_braces. Returns true if a switch
5426 matching the atom bracketed by ATOM and END_ATOM appeared on the
5429 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5432 int len
= end_atom
- atom
;
5433 int plen
= starred
? len
: -1;
5435 for (i
= 0; i
< n_switches
; i
++)
5436 if (!strncmp (switches
[i
].part1
, atom
, len
)
5437 && (starred
|| switches
[i
].part1
[len
] == '\0')
5438 && check_live_switch (i
, plen
))
5444 /* Inline subroutine of handle_braces. Mark all of the switches which
5445 match ATOM (extends to END_ATOM; STARRED indicates whether there
5446 was a star after the atom) for later processing. */
5448 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5451 int len
= end_atom
- atom
;
5452 int plen
= starred
? len
: -1;
5454 for (i
= 0; i
< n_switches
; i
++)
5455 if (!strncmp (switches
[i
].part1
, atom
, len
)
5456 && (starred
|| switches
[i
].part1
[len
] == '\0')
5457 && check_live_switch (i
, plen
))
5458 switches
[i
].ordering
= 1;
5461 /* Inline subroutine of handle_braces. Process all the currently
5462 marked switches through give_switch, and clear the marks. */
5464 process_marked_switches (void)
5468 for (i
= 0; i
< n_switches
; i
++)
5469 if (switches
[i
].ordering
== 1)
5471 switches
[i
].ordering
= 0;
5476 /* Handle a %{ ... } construct. P points just inside the leading {.
5477 Returns a pointer one past the end of the brace block, or 0
5478 if we call do_spec_1 and that returns -1. */
5481 handle_braces (const char *p
)
5483 const char *atom
, *end_atom
;
5484 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5485 const char *orig
= p
;
5493 bool a_must_be_last
= false;
5494 bool ordered_set
= false;
5495 bool disjunct_set
= false;
5496 bool disj_matched
= false;
5497 bool disj_starred
= true;
5498 bool n_way_choice
= false;
5499 bool n_way_matched
= false;
5501 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5508 /* Scan one "atom" (S in the description above of %{}, possibly
5509 with '!', '.', '@', ',', or '*' modifiers). */
5511 a_is_suffix
= false;
5512 a_is_starred
= false;
5513 a_is_negated
= false;
5514 a_is_spectype
= false;
5518 p
++, a_is_negated
= true;
5522 p
++, a_is_suffix
= true;
5524 p
++, a_is_spectype
= true;
5527 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5528 || *p
== ',' || *p
== '.' || *p
== '@')
5533 p
++, a_is_starred
= 1;
5539 /* Substitute the switch(es) indicated by the current atom. */
5541 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5542 || a_is_spectype
|| atom
== end_atom
)
5545 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5548 process_marked_switches ();
5552 /* Substitute some text if the current atom appears as a switch
5554 disjunct_set
= true;
5558 if (atom
== end_atom
)
5560 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5561 || a_is_negated
|| a_is_suffix
|| a_is_spectype
5565 /* An empty term may appear as the last choice of an
5566 N-way choice set; it means "otherwise". */
5567 a_must_be_last
= true;
5568 disj_matched
= !n_way_matched
;
5569 disj_starred
= false;
5573 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
5577 disj_starred
= false;
5579 /* Don't bother testing this atom if we already have a
5581 if (!disj_matched
&& !n_way_matched
)
5584 a_matched
= input_suffix_matches (atom
, end_atom
);
5585 else if (a_is_spectype
)
5586 a_matched
= input_spec_matches (atom
, end_atom
);
5588 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5590 if (a_matched
!= a_is_negated
)
5592 disj_matched
= true;
5594 d_end_atom
= end_atom
;
5601 /* Found the body, that is, the text to substitute if the
5602 current disjunction matches. */
5603 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5604 disj_matched
&& !n_way_matched
);
5608 /* If we have an N-way choice, reset state for the next
5612 n_way_choice
= true;
5613 n_way_matched
|= disj_matched
;
5614 disj_matched
= false;
5615 disj_starred
= true;
5616 d_atom
= d_end_atom
= NULL
;
5625 while (*p
++ != '}');
5630 fatal_error ("braced spec %qs is invalid at %qc", orig
, *p
);
5635 /* Subroutine of handle_braces. Scan and process a brace substitution body
5636 (X in the description of %{} syntax). P points one past the colon;
5637 ATOM and END_ATOM bracket the first atom which was found to be true
5638 (present) in the current disjunction; STARRED indicates whether all
5639 the atoms in the current disjunction were starred (for syntax validation);
5640 MATCHED indicates whether the disjunction matched or not, and therefore
5641 whether or not the body is to be processed through do_spec_1 or just
5642 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5646 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5647 int starred
, int matched
)
5649 const char *body
, *end_body
;
5650 unsigned int nesting_level
;
5651 bool have_subst
= false;
5653 /* Locate the closing } or ;, honoring nested braces.
5654 Trim trailing whitespace. */
5663 if (!--nesting_level
)
5666 else if (*p
== ';' && nesting_level
== 1)
5668 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5670 else if (*p
== '\0')
5676 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5679 if (have_subst
&& !starred
)
5684 /* Copy the substitution body to permanent storage and execute it.
5685 If have_subst is false, this is a simple matter of running the
5686 body through do_spec_1... */
5687 char *string
= save_string (body
, end_body
- body
);
5690 if (do_spec_1 (string
, 0, NULL
) < 0)
5695 /* ... but if have_subst is true, we have to process the
5696 body once for each matching switch, with %* set to the
5697 variant part of the switch. */
5698 unsigned int hard_match_len
= end_atom
- atom
;
5701 for (i
= 0; i
< n_switches
; i
++)
5702 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5703 && check_live_switch (i
, hard_match_len
))
5705 if (do_spec_1 (string
, 0,
5706 &switches
[i
].part1
[hard_match_len
]) < 0)
5708 /* Pass any arguments this switch has. */
5710 suffix_subst
= NULL
;
5718 fatal_error ("braced spec body %qs is invalid", body
);
5721 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5722 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5723 spec, or -1 if either exact match or %* is used.
5725 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5726 whose value does not begin with "no-" is obsoleted by the same value
5727 with the "no-", similarly for a switch with the "no-" prefix. */
5730 check_live_switch (int switchnum
, int prefix_length
)
5732 const char *name
= switches
[switchnum
].part1
;
5735 /* If we already processed this switch and determined if it was
5736 live or not, return our past determination. */
5737 if (switches
[switchnum
].live_cond
!= 0)
5738 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
5739 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
5740 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
5743 /* In the common case of {<at-most-one-letter>*}, a negating
5744 switch would always match, so ignore that case. We will just
5745 send the conflicting switches to the compiler phase. */
5746 if (prefix_length
>= 0 && prefix_length
<= 1)
5749 /* Now search for duplicate in a manner that depends on the name. */
5753 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5754 if (switches
[i
].part1
[0] == 'O')
5756 switches
[switchnum
].validated
= 1;
5757 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5762 case 'W': case 'f': case 'm':
5763 if (! strncmp (name
+ 1, "no-", 3))
5765 /* We have Xno-YYY, search for XYYY. */
5766 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5767 if (switches
[i
].part1
[0] == name
[0]
5768 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5770 switches
[switchnum
].validated
= 1;
5771 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5777 /* We have XYYY, search for Xno-YYY. */
5778 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5779 if (switches
[i
].part1
[0] == name
[0]
5780 && switches
[i
].part1
[1] == 'n'
5781 && switches
[i
].part1
[2] == 'o'
5782 && switches
[i
].part1
[3] == '-'
5783 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5785 switches
[switchnum
].validated
= 1;
5786 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5793 /* Otherwise the switch is live. */
5794 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
5798 /* Pass a switch to the current accumulating command
5799 in the same form that we received it.
5800 SWITCHNUM identifies the switch; it is an index into
5801 the vector of switches gcc received, which is `switches'.
5802 This cannot fail since it never finishes a command line.
5804 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5807 give_switch (int switchnum
, int omit_first_word
)
5809 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
5812 if (!omit_first_word
)
5814 do_spec_1 ("-", 0, NULL
);
5815 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5818 if (switches
[switchnum
].args
!= 0)
5821 for (p
= switches
[switchnum
].args
; *p
; p
++)
5823 const char *arg
= *p
;
5825 do_spec_1 (" ", 0, NULL
);
5828 unsigned length
= strlen (arg
);
5831 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5832 if (arg
[length
] == '.')
5834 (CONST_CAST(char *, arg
))[length
] = 0;
5838 do_spec_1 (arg
, 1, NULL
);
5840 (CONST_CAST(char *, arg
))[length
] = '.';
5841 do_spec_1 (suffix_subst
, 1, NULL
);
5844 do_spec_1 (arg
, 1, NULL
);
5848 do_spec_1 (" ", 0, NULL
);
5849 switches
[switchnum
].validated
= 1;
5852 /* Search for a file named NAME trying various prefixes including the
5853 user's -B prefix and some standard ones.
5854 Return the absolute file name found. If nothing is found, return NAME. */
5857 find_file (const char *name
)
5859 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
5860 return newname
? newname
: name
;
5863 /* Determine whether a directory exists. If LINKER, return 0 for
5864 certain fixed names not needed by the linker. */
5867 is_directory (const char *path1
, bool linker
)
5874 /* Ensure the string ends with "/.". The resulting path will be a
5875 directory even if the given path is a symbolic link. */
5876 len1
= strlen (path1
);
5877 path
= (char *) alloca (3 + len1
);
5878 memcpy (path
, path1
, len1
);
5880 if (!IS_DIR_SEPARATOR (cp
[-1]))
5881 *cp
++ = DIR_SEPARATOR
;
5885 /* Exclude directories that the linker is known to search. */
5887 && IS_DIR_SEPARATOR (path
[0])
5889 && strncmp (path
+ 1, "lib", 3) == 0)
5891 && strncmp (path
+ 1, "usr", 3) == 0
5892 && IS_DIR_SEPARATOR (path
[4])
5893 && strncmp (path
+ 5, "lib", 3) == 0)))
5896 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5899 /* Set up the various global variables to indicate that we're processing
5900 the input file named FILENAME. */
5903 set_input (const char *filename
)
5907 gcc_input_filename
= filename
;
5908 input_filename_length
= strlen (gcc_input_filename
);
5909 input_basename
= lbasename (gcc_input_filename
);
5911 /* Find a suffix starting with the last period,
5912 and set basename_length to exclude that suffix. */
5913 basename_length
= strlen (input_basename
);
5914 suffixed_basename_length
= basename_length
;
5915 p
= input_basename
+ basename_length
;
5916 while (p
!= input_basename
&& *p
!= '.')
5918 if (*p
== '.' && p
!= input_basename
)
5920 basename_length
= p
- input_basename
;
5921 input_suffix
= p
+ 1;
5926 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
5927 we will need to do a stat on the gcc_input_filename. The
5928 INPUT_STAT_SET signals that the stat is needed. */
5932 /* On fatal signals, delete all the temporary files. */
5935 fatal_signal (int signum
)
5937 signal (signum
, SIG_DFL
);
5938 delete_failure_queue ();
5939 delete_temp_files ();
5940 /* Get the same signal again, this time not handled,
5941 so its normal effect occurs. */
5942 kill (getpid (), signum
);
5945 /* Compare the contents of the two files named CMPFILE[0] and
5946 CMPFILE[1]. Return zero if they're identical, nonzero
5950 compare_files (char *cmpfile
[])
5953 FILE *temp
[2] = { NULL
, NULL
};
5959 void *map
[2] = { NULL
, NULL
};
5961 for (i
= 0; i
< 2; i
++)
5965 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
5967 error ("%s: could not determine length of compare-debug file %s",
5968 gcc_input_filename
, cmpfile
[i
]);
5973 length
[i
] = st
.st_size
;
5976 if (!ret
&& length
[0] != length
[1])
5978 error ("%s: -fcompare-debug failure (length)", gcc_input_filename
);
5983 for (i
= 0; i
< 2; i
++)
5985 int fd
= open (cmpfile
[i
], O_RDONLY
);
5988 error ("%s: could not open compare-debug file %s",
5989 gcc_input_filename
, cmpfile
[i
]);
5994 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
5997 if (map
[i
] == (void *) MAP_FAILED
)
6006 if (memcmp (map
[0], map
[1], length
[0]) != 0)
6008 error ("%s: -fcompare-debug failure", gcc_input_filename
);
6013 for (i
= 0; i
< 2; i
++)
6015 munmap ((caddr_t
) map
[i
], length
[i
]);
6024 for (i
= 0; i
< 2; i
++)
6026 temp
[i
] = fopen (cmpfile
[i
], "r");
6029 error ("%s: could not open compare-debug file %s",
6030 gcc_input_filename
, cmpfile
[i
]);
6036 if (!ret
&& temp
[0] && temp
[1])
6040 c0
= fgetc (temp
[0]);
6041 c1
= fgetc (temp
[1]);
6045 error ("%s: -fcompare-debug failure",
6046 gcc_input_filename
);
6055 for (i
= 1; i
>= 0; i
--)
6064 extern int main (int, char **);
6067 main (int argc
, char **argv
)
6071 int linker_was_run
= 0;
6072 int lang_n_infiles
= 0;
6073 int num_linker_inputs
= 0;
6074 char *explicit_link_files
;
6076 char *lto_wrapper_file
;
6078 struct user_specs
*uptr
;
6079 char **old_argv
= argv
;
6080 struct cl_decoded_option
*decoded_options
;
6081 unsigned int decoded_options_count
;
6083 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6084 on ?: in file-scope variable initializations. */
6085 asm_debug
= ASM_DEBUG_SPEC
;
6087 p
= argv
[0] + strlen (argv
[0]);
6088 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6092 xmalloc_set_program_name (progname
);
6094 expandargv (&argc
, &argv
);
6096 /* Determine if any expansions were made. */
6097 if (argv
!= old_argv
)
6098 at_file_supplied
= true;
6100 global_options
= global_options_init
;
6102 decode_cmdline_options_to_array (argc
, CONST_CAST2 (const char **, char **,
6105 &decoded_options
, &decoded_options_count
);
6107 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6108 /* Perform host dependent initialization when needed. */
6109 GCC_DRIVER_HOST_INITIALIZATION
;
6112 /* Unlock the stdio streams. */
6113 unlock_std_streams ();
6115 gcc_init_libintl ();
6117 diagnostic_initialize (global_dc
, 0);
6118 if (atexit (delete_temp_files
) != 0)
6119 fatal_error ("atexit failed");
6121 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6122 signal (SIGINT
, fatal_signal
);
6124 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6125 signal (SIGHUP
, fatal_signal
);
6127 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6128 signal (SIGTERM
, fatal_signal
);
6130 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6131 signal (SIGPIPE
, fatal_signal
);
6134 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6135 receive the signal. A different setting is inheritable */
6136 signal (SIGCHLD
, SIG_DFL
);
6139 /* Allocate the argument vector. */
6142 obstack_init (&obstack
);
6144 /* Build multilib_select, et. al from the separate lines that make up each
6145 multilib selection. */
6147 const char *const *q
= multilib_raw
;
6150 obstack_init (&multilib_obstack
);
6151 while ((p
= *q
++) != (char *) 0)
6152 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6154 obstack_1grow (&multilib_obstack
, 0);
6155 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6157 q
= multilib_matches_raw
;
6158 while ((p
= *q
++) != (char *) 0)
6159 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6161 obstack_1grow (&multilib_obstack
, 0);
6162 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6164 q
= multilib_exclusions_raw
;
6165 while ((p
= *q
++) != (char *) 0)
6166 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6168 obstack_1grow (&multilib_obstack
, 0);
6169 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6172 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6175 obstack_1grow (&multilib_obstack
, ' ');
6176 obstack_grow (&multilib_obstack
,
6177 multilib_defaults_raw
[i
],
6178 strlen (multilib_defaults_raw
[i
]));
6182 obstack_1grow (&multilib_obstack
, 0);
6183 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6186 #ifdef INIT_ENVIRONMENT
6187 /* Set up any other necessary machine specific environment variables. */
6188 xputenv (INIT_ENVIRONMENT
);
6191 /* Make a table of what switches there are (switches, n_switches).
6192 Make a table of specified input files (infiles, n_infiles).
6193 Decode switches that are handled locally. */
6195 process_command (decoded_options_count
, decoded_options
);
6197 /* Initialize the vector of specs to just the default.
6198 This means one element containing 0s, as a terminator. */
6200 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
6201 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6202 n_compilers
= n_default_compilers
;
6204 /* Read specs from a file if there is one. */
6206 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6207 spec_version
, dir_separator_str
, NULL
);
6208 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6210 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6211 /* Read the specs file unless it is a default one. */
6212 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6213 read_specs (specs_file
, TRUE
);
6217 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6218 for any override of as, ld and libraries. */
6219 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
6220 + strlen (just_machine_suffix
) + sizeof ("specs"));
6222 strcpy (specs_file
, standard_exec_prefix
);
6223 strcat (specs_file
, just_machine_suffix
);
6224 strcat (specs_file
, "specs");
6225 if (access (specs_file
, R_OK
) == 0)
6226 read_specs (specs_file
, TRUE
);
6228 /* Process any configure-time defaults specified for the command line
6229 options, via OPTION_DEFAULT_SPECS. */
6230 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6231 do_option_spec (option_default_specs
[i
].name
,
6232 option_default_specs
[i
].spec
);
6234 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6235 of the command line. */
6237 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6238 do_self_spec (driver_self_specs
[i
]);
6242 enum save_temps save
;
6244 if (!compare_debug_second
)
6246 n_switches_debug_check
[1] = n_switches
;
6247 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
6248 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
6251 do_self_spec ("%:compare-debug-self-opt()");
6252 n_switches_debug_check
[0] = n_switches
;
6253 n_switches_alloc_debug_check
[0] = n_switches_alloc
;
6254 switches_debug_check
[0] = switches
;
6256 n_switches
= n_switches_debug_check
[1];
6257 n_switches_alloc
= n_switches_alloc_debug_check
[1];
6258 switches
= switches_debug_check
[1];
6261 /* Avoid crash when computing %j in this early. */
6262 save
= save_temps_flag
;
6263 save_temps_flag
= SAVE_TEMPS_NONE
;
6265 compare_debug
= -compare_debug
;
6266 do_self_spec ("%:compare-debug-self-opt()");
6268 save_temps_flag
= save
;
6270 if (!compare_debug_second
)
6272 n_switches_debug_check
[1] = n_switches
;
6273 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
6274 switches_debug_check
[1] = switches
;
6275 compare_debug
= -compare_debug
;
6276 n_switches
= n_switches_debug_check
[0];
6277 n_switches_alloc
= n_switches_debug_check
[0];
6278 switches
= switches_debug_check
[0];
6282 /* If not cross-compiling, look for executables in the standard
6284 if (*cross_compile
== '0')
6286 if (*md_exec_prefix
)
6288 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6289 PREFIX_PRIORITY_LAST
, 0, 0);
6293 /* Process sysroot_suffix_spec. */
6294 if (*sysroot_suffix_spec
!= 0
6295 && do_spec_2 (sysroot_suffix_spec
) == 0)
6297 if (VEC_length (const_char_p
, argbuf
) > 1)
6298 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6299 else if (VEC_length (const_char_p
, argbuf
) == 1)
6300 target_sysroot_suffix
= xstrdup (VEC_last (const_char_p
, argbuf
));
6303 #ifdef HAVE_LD_SYSROOT
6304 /* Pass the --sysroot option to the linker, if it supports that. If
6305 there is a sysroot_suffix_spec, it has already been processed by
6306 this point, so target_system_root really is the system root we
6308 if (target_system_root
)
6310 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6311 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6312 set_spec ("link", XOBFINISH (&obstack
, const char *));
6316 /* Process sysroot_hdrs_suffix_spec. */
6317 if (*sysroot_hdrs_suffix_spec
!= 0
6318 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6320 if (VEC_length (const_char_p
, argbuf
) > 1)
6321 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6322 else if (VEC_length (const_char_p
, argbuf
) == 1)
6323 target_sysroot_hdrs_suffix
= xstrdup (VEC_last (const_char_p
, argbuf
));
6326 /* Look for startfiles in the standard places. */
6327 if (*startfile_prefix_spec
!= 0
6328 && do_spec_2 (startfile_prefix_spec
) == 0
6329 && do_spec_1 (" ", 0, NULL
) == 0)
6333 FOR_EACH_VEC_ELT (const_char_p
, argbuf
, ndx
, arg
)
6334 add_sysrooted_prefix (&startfile_prefixes
, arg
, "BINUTILS",
6335 PREFIX_PRIORITY_LAST
, 0, 1);
6337 /* We should eventually get rid of all these and stick to
6338 startfile_prefix_spec exclusively. */
6339 else if (*cross_compile
== '0' || target_system_root
)
6341 if (*md_startfile_prefix
)
6342 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6343 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6345 if (*md_startfile_prefix_1
)
6346 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6347 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6349 /* If standard_startfile_prefix is relative, base it on
6350 standard_exec_prefix. This lets us move the installed tree
6351 as a unit. If GCC_EXEC_PREFIX is defined, base
6352 standard_startfile_prefix on that as well.
6354 If the prefix is relative, only search it for native compilers;
6355 otherwise we will search a directory containing host libraries. */
6356 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6357 add_sysrooted_prefix (&startfile_prefixes
,
6358 standard_startfile_prefix
, "BINUTILS",
6359 PREFIX_PRIORITY_LAST
, 0, 1);
6360 else if (*cross_compile
== '0')
6362 add_prefix (&startfile_prefixes
,
6363 concat (gcc_exec_prefix
6364 ? gcc_exec_prefix
: standard_exec_prefix
,
6366 standard_startfile_prefix
, NULL
),
6367 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6370 /* Sysrooted prefixes are relocated because target_system_root is
6371 also relocated by gcc_exec_prefix. */
6372 if (*standard_startfile_prefix_1
)
6373 add_sysrooted_prefix (&startfile_prefixes
,
6374 standard_startfile_prefix_1
, "BINUTILS",
6375 PREFIX_PRIORITY_LAST
, 0, 1);
6376 if (*standard_startfile_prefix_2
)
6377 add_sysrooted_prefix (&startfile_prefixes
,
6378 standard_startfile_prefix_2
, "BINUTILS",
6379 PREFIX_PRIORITY_LAST
, 0, 1);
6382 /* Process any user specified specs in the order given on the command
6384 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6386 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6388 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6391 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6392 if (gcc_exec_prefix
)
6393 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6394 spec_version
, dir_separator_str
, NULL
);
6396 /* Now we have the specs.
6397 Set the `valid' bits for switches that match anything in any spec. */
6399 validate_all_switches ();
6401 /* Now that we have the switches and the specs, set
6402 the subdirectory based on the options. */
6403 set_multilib_dir ();
6405 /* Set up to remember the pathname of gcc and any options
6406 needed for collect. We use argv[0] instead of progname because
6407 we need the complete pathname. */
6408 obstack_init (&collect_obstack
);
6409 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6410 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6411 xputenv (XOBFINISH (&collect_obstack
, char *));
6413 /* Set up to remember the pathname of the lto wrapper. */
6415 lto_wrapper_file
= find_a_file (&exec_prefixes
, "lto-wrapper", X_OK
, false);
6416 if (lto_wrapper_file
)
6418 lto_wrapper_spec
= lto_wrapper_file
;
6419 obstack_init (&collect_obstack
);
6420 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
6421 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
6422 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
6423 strlen (lto_wrapper_spec
) + 1);
6424 xputenv (XOBFINISH (&collect_obstack
, char *));
6427 /* Warn about any switches that no pass was interested in. */
6429 for (i
= 0; (int) i
< n_switches
; i
++)
6430 if (! switches
[i
].validated
)
6431 error ("unrecognized option %<-%s%>", switches
[i
].part1
);
6433 /* Obey some of the options. */
6435 if (print_search_dirs
)
6437 printf (_("install: %s%s\n"),
6438 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
6439 gcc_exec_prefix
? "" : machine_suffix
);
6440 printf (_("programs: %s\n"),
6441 build_search_list (&exec_prefixes
, "", false, false));
6442 printf (_("libraries: %s\n"),
6443 build_search_list (&startfile_prefixes
, "", false, true));
6447 if (print_file_name
)
6449 printf ("%s\n", find_file (print_file_name
));
6453 if (print_prog_name
)
6455 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6456 printf ("%s\n", (newname
? newname
: print_prog_name
));
6460 if (print_multi_lib
)
6462 print_multilib_info ();
6466 if (print_multi_directory
)
6468 if (multilib_dir
== NULL
)
6471 printf ("%s\n", multilib_dir
);
6477 if (target_system_root
)
6479 if (target_sysroot_suffix
)
6480 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
6482 printf ("%s\n", target_system_root
);
6487 if (print_multi_os_directory
)
6489 if (multilib_os_dir
== NULL
)
6492 printf ("%s\n", multilib_os_dir
);
6496 if (print_sysroot_headers_suffix
)
6498 if (*sysroot_hdrs_suffix_spec
)
6500 printf("%s\n", (target_sysroot_hdrs_suffix
6501 ? target_sysroot_hdrs_suffix
6506 /* The error status indicates that only one set of fixed
6507 headers should be built. */
6508 fatal_error ("not configured with sysroot headers suffix");
6511 if (print_help_list
)
6517 printf (_("\nFor bug reporting instructions, please see:\n"));
6518 printf ("%s.\n", bug_report_url
);
6523 /* We do not exit here. Instead we have created a fake input file
6524 called 'help-dummy' which needs to be compiled, and we pass this
6525 on the various sub-processes, along with the --help switch.
6526 Ensure their output appears after ours. */
6527 fputc ('\n', stdout
);
6533 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
6535 printf ("Copyright %s 2010 Free Software Foundation, Inc.\n",
6537 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
6538 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
6543 /* We do not exit here. We use the same mechanism of --help to print
6544 the version of the sub-processes. */
6545 fputc ('\n', stdout
);
6554 fnotice (stderr
, "Target: %s\n", spec_machine
);
6555 fnotice (stderr
, "Configured with: %s\n", configuration_arguments
);
6557 #ifdef THREAD_MODEL_SPEC
6558 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6559 but there's no point in doing all this processing just to get
6560 thread_model back. */
6561 obstack_init (&obstack
);
6562 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6563 obstack_1grow (&obstack
, '\0');
6564 thrmod
= XOBFINISH (&obstack
, const char *);
6566 thrmod
= thread_model
;
6569 fnotice (stderr
, "Thread model: %s\n", thrmod
);
6571 /* compiler_version is truncated at the first space when initialized
6572 from version string, so truncate version_string at the first space
6573 before comparing. */
6574 for (n
= 0; version_string
[n
]; n
++)
6575 if (version_string
[n
] == ' ')
6578 if (! strncmp (version_string
, compiler_version
, n
)
6579 && compiler_version
[n
] == 0)
6580 fnotice (stderr
, "gcc version %s %s\n", version_string
,
6583 fnotice (stderr
, "gcc driver version %s %sexecuting gcc version %s\n",
6584 version_string
, pkgversion_string
, compiler_version
);
6590 if (n_infiles
== added_libraries
)
6591 fatal_error ("no input files");
6593 /* Make a place to record the compiler output file names
6594 that correspond to the input files. */
6597 i
+= lang_specific_extra_outfiles
;
6598 outfiles
= XCNEWVEC (const char *, i
);
6600 /* Record which files were specified explicitly as link input. */
6602 explicit_link_files
= XCNEWVEC (char, n_infiles
);
6604 combine_inputs
= have_o
|| flag_wpa
;
6606 for (i
= 0; (int) i
< n_infiles
; i
++)
6608 const char *name
= infiles
[i
].name
;
6609 struct compiler
*compiler
= lookup_compiler (name
,
6611 infiles
[i
].language
);
6613 if (compiler
&& !(compiler
->combinable
))
6614 combine_inputs
= false;
6616 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6617 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6618 infiles
[i
].incompiler
= compiler
;
6622 input_file_compiler
= compiler
;
6623 infiles
[i
].incompiler
= compiler
;
6627 /* Since there is no compiler for this input file, assume it is a
6629 explicit_link_files
[i
] = 1;
6630 infiles
[i
].incompiler
= NULL
;
6632 infiles
[i
].compiled
= false;
6633 infiles
[i
].preprocessed
= false;
6636 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
6637 fatal_error ("cannot specify -o with -c, -S or -E with multiple files");
6639 for (i
= 0; (int) i
< n_infiles
; i
++)
6641 int this_file_error
= 0;
6643 /* Tell do_spec what to substitute for %i. */
6645 input_file_number
= i
;
6646 set_input (infiles
[i
].name
);
6648 if (infiles
[i
].compiled
)
6651 /* Use the same thing in %o, unless cp->spec says otherwise. */
6653 outfiles
[i
] = gcc_input_filename
;
6655 /* Figure out which compiler from the file's suffix. */
6658 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6659 infiles
[i
].language
);
6661 if (input_file_compiler
)
6663 /* Ok, we found an applicable compiler. Run its spec. */
6665 if (input_file_compiler
->spec
[0] == '#')
6667 error ("%s: %s compiler not installed on this system",
6668 gcc_input_filename
, &input_file_compiler
->spec
[1]);
6669 this_file_error
= 1;
6675 if (debug_check_temp_file
[0])
6676 free (debug_check_temp_file
[0]);
6677 debug_check_temp_file
[0] = NULL
;
6679 if (debug_check_temp_file
[1])
6680 free (debug_check_temp_file
[1]);
6681 debug_check_temp_file
[1] = NULL
;
6684 value
= do_spec (input_file_compiler
->spec
);
6685 infiles
[i
].compiled
= true;
6687 this_file_error
= 1;
6688 else if (compare_debug
&& debug_check_temp_file
[0])
6691 inform (0, "recompiling with -fcompare-debug");
6693 compare_debug
= -compare_debug
;
6694 n_switches
= n_switches_debug_check
[1];
6695 n_switches_alloc
= n_switches_alloc_debug_check
[1];
6696 switches
= switches_debug_check
[1];
6698 value
= do_spec (input_file_compiler
->spec
);
6700 compare_debug
= -compare_debug
;
6701 n_switches
= n_switches_debug_check
[0];
6702 n_switches_alloc
= n_switches_alloc_debug_check
[0];
6703 switches
= switches_debug_check
[0];
6707 error ("during -fcompare-debug recompilation");
6708 this_file_error
= 1;
6711 gcc_assert (debug_check_temp_file
[1]
6712 && strcmp (debug_check_temp_file
[0],
6713 debug_check_temp_file
[1]));
6716 inform (0, "comparing final insns dumps");
6718 if (compare_files (debug_check_temp_file
))
6719 this_file_error
= 1;
6724 if (debug_check_temp_file
[0])
6725 free (debug_check_temp_file
[0]);
6726 debug_check_temp_file
[0] = NULL
;
6728 if (debug_check_temp_file
[1])
6729 free (debug_check_temp_file
[1]);
6730 debug_check_temp_file
[1] = NULL
;
6735 /* If this file's name does not contain a recognized suffix,
6736 record it as explicit linker input. */
6739 explicit_link_files
[i
] = 1;
6741 /* Clear the delete-on-failure queue, deleting the files in it
6742 if this compilation failed. */
6744 if (this_file_error
)
6746 delete_failure_queue ();
6749 /* If this compilation succeeded, don't delete those files later. */
6750 clear_failure_queue ();
6753 /* Reset the input file name to the first compile/object file name, for use
6754 with %b in LINK_SPEC. We use the first input file that we can find
6755 a compiler to compile it instead of using infiles.language since for
6756 languages other than C we use aliases that we then lookup later. */
6761 for (i
= 0; i
< n_infiles
; i
++)
6762 if (infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6764 set_input (infiles
[i
].name
);
6771 /* Make sure INPUT_FILE_NUMBER points to first available open
6773 input_file_number
= n_infiles
;
6774 if (lang_specific_pre_link ())
6778 /* Determine if there are any linker input files. */
6779 num_linker_inputs
= 0;
6780 for (i
= 0; (int) i
< n_infiles
; i
++)
6781 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6782 num_linker_inputs
++;
6784 /* Run ld to link all the compiler output files. */
6786 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
6788 int tmp
= execution_count
;
6789 const char *fuse_linker_plugin
= "fuse-linker-plugin";
6791 /* We'll use ld if we can't find collect2. */
6792 if (! strcmp (linker_name_spec
, "collect2"))
6794 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
6796 linker_name_spec
= "ld";
6799 if (switch_matches (fuse_linker_plugin
,
6800 fuse_linker_plugin
+ strlen (fuse_linker_plugin
), 0))
6802 linker_plugin_file_spec
= find_a_file (&exec_prefixes
,
6803 LTOPLUGINSONAME
, R_OK
,
6805 if (!linker_plugin_file_spec
)
6806 fatal_error ("-fuse-linker-plugin, but " LTOPLUGINSONAME
" not found");
6808 lto_gcc_spec
= argv
[0];
6810 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6812 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
6813 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
6815 if (print_subprocess_help
== 1)
6817 printf (_("\nLinker options\n==============\n\n"));
6818 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
6819 " to the linker.\n\n"));
6822 value
= do_spec (link_command_spec
);
6825 linker_was_run
= (tmp
!= execution_count
);
6828 /* If options said don't run linker,
6829 complain about input files to be given to the linker. */
6831 if (! linker_was_run
&& !seen_error ())
6832 for (i
= 0; (int) i
< n_infiles
; i
++)
6833 if (explicit_link_files
[i
]
6834 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
6835 warning (0, "%s: linker input file unused because linking not done",
6838 /* Delete some or all of the temporary files we made. */
6841 delete_failure_queue ();
6842 delete_temp_files ();
6844 if (print_help_list
)
6846 printf (("\nFor bug reporting instructions, please see:\n"));
6847 printf ("%s\n", bug_report_url
);
6850 return (signal_count
!= 0 ? 2
6851 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
6855 /* Find the proper compilation spec for the file name NAME,
6856 whose length is LENGTH. LANGUAGE is the specified language,
6857 or 0 if this file is to be passed to the linker. */
6859 static struct compiler
*
6860 lookup_compiler (const char *name
, size_t length
, const char *language
)
6862 struct compiler
*cp
;
6864 /* If this was specified by the user to be a linker input, indicate that. */
6865 if (language
!= 0 && language
[0] == '*')
6868 /* Otherwise, look for the language, if one is spec'd. */
6871 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6872 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6875 error ("language %s not recognized", language
);
6879 /* Look for a suffix. */
6880 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6882 if (/* The suffix `-' matches only the file name `-'. */
6883 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6884 || (strlen (cp
->suffix
) < length
6885 /* See if the suffix matches the end of NAME. */
6886 && !strcmp (cp
->suffix
,
6887 name
+ length
- strlen (cp
->suffix
))
6892 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6893 /* Look again, but case-insensitively this time. */
6895 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6897 if (/* The suffix `-' matches only the file name `-'. */
6898 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6899 || (strlen (cp
->suffix
) < length
6900 /* See if the suffix matches the end of NAME. */
6901 && ((!strcmp (cp
->suffix
,
6902 name
+ length
- strlen (cp
->suffix
))
6903 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6904 && !strcasecmp (cp
->suffix
,
6905 name
+ length
- strlen (cp
->suffix
)))
6911 if (cp
>= compilers
)
6913 if (cp
->spec
[0] != '@')
6914 /* A non-alias entry: return it. */
6917 /* An alias entry maps a suffix to a language.
6918 Search for the language; pass 0 for NAME and LENGTH
6919 to avoid infinite recursion if language not found. */
6920 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6926 save_string (const char *s
, int len
)
6928 char *result
= XNEWVEC (char, len
+ 1);
6930 memcpy (result
, s
, len
);
6936 pfatal_with_name (const char *name
)
6938 perror_with_name (name
);
6939 delete_temp_files ();
6944 perror_with_name (const char *name
)
6946 error ("%s: %m", name
);
6950 validate_switches_from_spec (const char *spec
)
6952 const char *p
= spec
;
6955 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6956 /* We have a switch spec. */
6957 p
= validate_switches (p
+ 1);
6961 validate_all_switches (void)
6963 struct compiler
*comp
;
6964 struct spec_list
*spec
;
6966 for (comp
= compilers
; comp
->spec
; comp
++)
6967 validate_switches_from_spec (comp
->spec
);
6969 /* Look through the linked list of specs read from the specs file. */
6970 for (spec
= specs
; spec
; spec
= spec
->next
)
6971 validate_switches_from_spec (*spec
->ptr_spec
);
6973 validate_switches_from_spec (link_command_spec
);
6976 /* Look at the switch-name that comes after START
6977 and mark as valid all supplied switches that match it. */
6980 validate_switches (const char *start
)
6982 const char *p
= start
;
6986 bool suffix
= false;
6987 bool starred
= false;
6989 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6998 if (*p
== '.' || *p
== ',')
7002 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7003 || *p
== ',' || *p
== '.' || *p
== '@')
7008 starred
= true, p
++;
7014 /* Mark all matching switches as valid. */
7015 for (i
= 0; i
< n_switches
; i
++)
7016 if (!strncmp (switches
[i
].part1
, atom
, len
)
7017 && (starred
|| switches
[i
].part1
[len
] == 0))
7018 switches
[i
].validated
= 1;
7022 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
7025 if (*p
&& p
[-1] == ':')
7027 while (*p
&& *p
!= ';' && *p
!= '}')
7032 if (*p
== '{' || *p
== '<')
7033 p
= validate_switches (p
+1);
7034 else if (p
[0] == 'W' && p
[1] == '{')
7035 p
= validate_switches (p
+2);
7042 if (*p
&& p
[-1] == ';')
7056 static struct mdswitchstr
*mdswitches
;
7057 static int n_mdswitches
;
7059 /* Check whether a particular argument was used. The first time we
7060 canonicalize the switches to keep only the ones we care about. */
7063 used_arg (const char *p
, int len
)
7068 const char *replace
;
7073 static struct mswitchstr
*mswitches
;
7074 static int n_mswitches
;
7079 struct mswitchstr
*matches
;
7083 /* Break multilib_matches into the component strings of string
7084 and replacement string. */
7085 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7090 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
7092 q
= multilib_matches
;
7101 fatal_error ("multilib spec %qs is invalid",
7106 matches
[i
].len
= q
- matches
[i
].str
;
7108 matches
[i
].replace
= ++q
;
7109 while (*q
!= ';' && *q
!= '\0')
7112 goto invalid_matches
;
7115 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7121 /* Now build a list of the replacement string for switches that we care
7122 about. Make sure we allocate at least one entry. This prevents
7123 xmalloc from calling fatal, and prevents us from re-executing this
7126 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7127 for (i
= 0; i
< n_switches
; i
++)
7128 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
7130 int xlen
= strlen (switches
[i
].part1
);
7131 for (j
= 0; j
< cnt
; j
++)
7132 if (xlen
== matches
[j
].len
7133 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7135 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7136 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7137 mswitches
[n_mswitches
].replace
= (char *) 0;
7138 mswitches
[n_mswitches
].rep_len
= 0;
7144 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7145 on the command line nor any options mutually incompatible with
7147 for (i
= 0; i
< n_mdswitches
; i
++)
7151 for (q
= multilib_options
; *q
!= '\0'; q
++)
7157 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7158 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7160 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7167 if (*q
!= ' ' && *q
!= '\0')
7169 while (*r
!= ' ' && *r
!= '\0')
7172 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7175 if (used_arg (r
, q
- r
))
7180 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7181 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7182 mswitches
[n_mswitches
].replace
= (char *) 0;
7183 mswitches
[n_mswitches
].rep_len
= 0;
7196 for (i
= 0; i
< n_mswitches
; i
++)
7197 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7204 default_arg (const char *p
, int len
)
7208 for (i
= 0; i
< n_mdswitches
; i
++)
7209 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7215 /* Work out the subdirectory to use based on the options. The format of
7216 multilib_select is a list of elements. Each element is a subdirectory
7217 name followed by a list of options followed by a semicolon. The format
7218 of multilib_exclusions is the same, but without the preceding
7219 directory. First gcc will check the exclusions, if none of the options
7220 beginning with an exclamation point are present, and all of the other
7221 options are present, then we will ignore this completely. Passing
7222 that, gcc will consider each multilib_select in turn using the same
7223 rules for matching the options. If a match is found, that subdirectory
7227 set_multilib_dir (void)
7230 unsigned int this_path_len
;
7231 const char *this_path
, *this_arg
;
7232 const char *start
, *end
;
7234 int ok
, ndfltok
, first
;
7237 start
= multilib_defaults
;
7238 while (*start
== ' ' || *start
== '\t')
7240 while (*start
!= '\0')
7243 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7245 while (*start
== ' ' || *start
== '\t')
7253 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
7254 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7256 while (*start
== ' ' || *start
== '\t')
7262 for (end
= start
+ 1;
7263 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7266 obstack_grow (&multilib_obstack
, start
, end
- start
);
7267 obstack_1grow (&multilib_obstack
, 0);
7268 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
7269 mdswitches
[i
++].len
= end
- start
;
7276 p
= multilib_exclusions
;
7279 /* Ignore newlines. */
7286 /* Check the arguments. */
7293 fatal_error ("multilib exclusions %qs is invalid",
7294 multilib_exclusions
);
7304 while (*p
!= ' ' && *p
!= ';')
7307 goto invalid_exclusions
;
7311 if (*this_arg
!= '!')
7319 ok
= used_arg (this_arg
, p
- this_arg
);
7334 p
= multilib_select
;
7337 /* Ignore newlines. */
7344 /* Get the initial path. */
7351 fatal_error ("multilib select %qs is invalid",
7356 this_path_len
= p
- this_path
;
7358 /* Check the arguments. */
7365 goto invalid_select
;
7374 while (*p
!= ' ' && *p
!= ';')
7377 goto invalid_select
;
7381 if (*this_arg
!= '!')
7389 /* If this is a default argument, we can just ignore it.
7390 This is true even if this_arg begins with '!'. Beginning
7391 with '!' does not mean that this argument is necessarily
7392 inappropriate for this library: it merely means that
7393 there is a more specific library which uses this
7394 argument. If this argument is a default, we need not
7395 consider that more specific library. */
7396 ok
= used_arg (this_arg
, p
- this_arg
);
7403 if (default_arg (this_arg
, p
- this_arg
))
7412 if (this_path_len
!= 1
7413 || this_path
[0] != '.')
7415 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
7418 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7419 new_multilib_dir
[this_path_len
] = '\0';
7420 q
= strchr (new_multilib_dir
, ':');
7423 multilib_dir
= new_multilib_dir
;
7430 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7432 while (q
< end
&& *q
!= ':')
7436 char *new_multilib_os_dir
= XNEWVEC (char, end
- q
);
7437 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7438 new_multilib_os_dir
[end
- q
- 1] = '\0';
7439 multilib_os_dir
= new_multilib_os_dir
;
7447 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7448 && strcmp (multilib_os_dir
, ".") == 0)
7450 free (CONST_CAST (char *, multilib_os_dir
));
7451 multilib_os_dir
= NULL
;
7453 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7454 multilib_os_dir
= multilib_dir
;
7457 /* Print out the multiple library subdirectory selection
7458 information. This prints out a series of lines. Each line looks
7459 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7460 required. Only the desired options are printed out, the negative
7461 matches. The options are print without a leading dash. There are
7462 no spaces to make it easy to use the information in the shell.
7463 Each subdirectory is printed only once. This assumes the ordering
7464 generated by the genmultilib script. Also, we leave out ones that match
7468 print_multilib_info (void)
7470 const char *p
= multilib_select
;
7471 const char *last_path
= 0, *this_path
;
7473 unsigned int last_path_len
= 0;
7478 /* Ignore newlines. */
7485 /* Get the initial path. */
7492 fatal_error ("multilib select %qs is invalid", multilib_select
);
7498 /* When --disable-multilib was used but target defines
7499 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7500 to find multilib_os_dir, so skip them from output. */
7501 if (this_path
[0] == '.' && this_path
[1] == ':')
7504 /* Check for matches with the multilib_exclusions. We don't bother
7505 with the '!' in either list. If any of the exclusion rules match
7506 all of its options with the select rule, we skip it. */
7508 const char *e
= multilib_exclusions
;
7509 const char *this_arg
;
7514 /* Ignore newlines. */
7521 /* Check the arguments. */
7530 fatal_error ("multilib exclusion %qs is invalid",
7531 multilib_exclusions
);
7542 while (*e
!= ' ' && *e
!= ';')
7545 goto invalid_exclusion
;
7553 int len
= e
- this_arg
;
7556 goto invalid_select
;
7560 while (*q
!= ' ' && *q
!= ';')
7563 goto invalid_select
;
7567 if (! strncmp (arg
, this_arg
,
7568 (len
< q
- arg
) ? q
- arg
: len
)
7569 || default_arg (this_arg
, e
- this_arg
))
7599 /* If this is a duplicate, skip it. */
7600 skip
= (last_path
!= 0
7601 && (unsigned int) (p
- this_path
) == last_path_len
7602 && ! strncmp (last_path
, this_path
, last_path_len
));
7604 last_path
= this_path
;
7605 last_path_len
= p
- this_path
;
7608 /* If this directory requires any default arguments, we can skip
7609 it. We will already have printed a directory identical to
7610 this one which does not require that default argument. */
7621 goto invalid_select
;
7628 while (*q
!= ' ' && *q
!= ';')
7631 goto invalid_select
;
7636 && default_arg (arg
, q
- arg
))
7651 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7662 goto invalid_select
;
7670 use_arg
= *p
!= '!';
7675 while (*p
!= ' ' && *p
!= ';')
7678 goto invalid_select
;
7690 /* If there are extra options, print them now. */
7691 if (multilib_extra
&& *multilib_extra
)
7693 int print_at
= TRUE
;
7696 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7717 /* getenv built-in spec function.
7719 Returns the value of the environment variable given by its first
7720 argument, concatenated with the second argument. If the
7721 environment variable is not defined, a fatal error is issued. */
7724 getenv_spec_function (int argc
, const char **argv
)
7734 value
= getenv (argv
[0]);
7736 fatal_error ("environment variable %qs not defined", argv
[0]);
7738 /* We have to escape every character of the environment variable so
7739 they are not interpreted as active spec characters. A
7740 particularly painful case is when we are reading a variable
7741 holding a windows path complete with \ separators. */
7742 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
7743 result
= XNEWVAR (char, len
);
7744 for (ptr
= result
; *value
; ptr
+= 2)
7750 strcpy (ptr
, argv
[1]);
7755 /* if-exists built-in spec function.
7757 Checks to see if the file specified by the absolute pathname in
7758 ARGS exists. Returns that pathname if found.
7760 The usual use for this function is to check for a library file
7761 (whose name has been expanded with %s). */
7764 if_exists_spec_function (int argc
, const char **argv
)
7766 /* Must have only one argument. */
7767 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7773 /* if-exists-else built-in spec function.
7775 This is like if-exists, but takes an additional argument which
7776 is returned if the first argument does not exist. */
7779 if_exists_else_spec_function (int argc
, const char **argv
)
7781 /* Must have exactly two arguments. */
7785 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7791 /* replace-outfile built-in spec function.
7793 This looks for the first argument in the outfiles array's name and
7794 replaces it with the second argument. */
7797 replace_outfile_spec_function (int argc
, const char **argv
)
7800 /* Must have exactly two arguments. */
7804 for (i
= 0; i
< n_infiles
; i
++)
7806 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7807 outfiles
[i
] = xstrdup (argv
[1]);
7812 /* remove-outfile built-in spec function.
7814 * This looks for the first argument in the outfiles array's name and
7818 remove_outfile_spec_function (int argc
, const char **argv
)
7821 /* Must have exactly one argument. */
7825 for (i
= 0; i
< n_infiles
; i
++)
7827 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7833 /* Given two version numbers, compares the two numbers.
7834 A version number must match the regular expression
7835 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
7838 compare_version_strings (const char *v1
, const char *v2
)
7843 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
7844 REG_EXTENDED
| REG_NOSUB
) != 0)
7846 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
7847 if (rresult
== REG_NOMATCH
)
7848 fatal_error ("invalid version number %qs", v1
);
7849 else if (rresult
!= 0)
7851 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
7852 if (rresult
== REG_NOMATCH
)
7853 fatal_error ("invalid version number %qs", v2
);
7854 else if (rresult
!= 0)
7857 return strverscmp (v1
, v2
);
7861 /* version_compare built-in spec function.
7863 This takes an argument of the following form:
7865 <comparison-op> <arg1> [<arg2>] <switch> <result>
7867 and produces "result" if the comparison evaluates to true,
7868 and nothing if it doesn't.
7870 The supported <comparison-op> values are:
7872 >= true if switch is a later (or same) version than arg1
7874 < true if switch is an earlier version than arg1
7876 >< true if switch is arg1 or later, and earlier than arg2
7877 <> true if switch is earlier than arg1 or is arg2 or later
7879 If the switch is not present, the condition is false unless
7880 the first character of the <comparison-op> is '!'.
7883 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
7884 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
7887 version_compare_spec_function (int argc
, const char **argv
)
7891 const char *switch_value
= NULL
;
7896 fatal_error ("too few arguments to %%:version-compare");
7897 if (argv
[0][0] == '\0')
7899 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
7901 if (argc
!= nargs
+ 3)
7902 fatal_error ("too many arguments to %%:version-compare");
7904 switch_len
= strlen (argv
[nargs
+ 1]);
7905 for (i
= 0; i
< n_switches
; i
++)
7906 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
7907 && check_live_switch (i
, switch_len
))
7908 switch_value
= switches
[i
].part1
+ switch_len
;
7910 if (switch_value
== NULL
)
7914 comp1
= compare_version_strings (switch_value
, argv
[1]);
7916 comp2
= compare_version_strings (switch_value
, argv
[2]);
7918 comp2
= -1; /* This value unused. */
7921 switch (argv
[0][0] << 8 | argv
[0][1])
7923 case '>' << 8 | '=':
7924 result
= comp1
>= 0;
7926 case '!' << 8 | '<':
7927 result
= comp1
>= 0 || switch_value
== NULL
;
7932 case '!' << 8 | '>':
7933 result
= comp1
< 0 || switch_value
== NULL
;
7935 case '>' << 8 | '<':
7936 result
= comp1
>= 0 && comp2
< 0;
7938 case '<' << 8 | '>':
7939 result
= comp1
< 0 || comp2
>= 0;
7943 fatal_error ("unknown operator %qs in %%:version-compare", argv
[0]);
7948 return argv
[nargs
+ 2];
7951 /* %:include builtin spec function. This differs from %include in that it
7952 can be nested inside a spec, and thus be conditionalized. It takes
7953 one argument, the filename, and looks for it in the startfile path.
7954 The result is always NULL, i.e. an empty expansion. */
7957 include_spec_function (int argc
, const char **argv
)
7964 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
7965 read_specs (file
? file
: argv
[0], FALSE
);
7970 /* %:find-file spec function. This function replaces its argument by
7971 the file found thru find_file, that is the -print-file-name gcc
7974 find_file_spec_function (int argc
, const char **argv
)
7981 file
= find_file (argv
[0]);
7986 /* %:find-plugindir spec function. This function replaces its argument
7987 by the -iplugindir=<dir> option. `dir' is found thru find_file, that
7988 is the -print-file-name gcc program option. */
7990 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
7997 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
8002 /* %:print-asm-header spec function. Print a banner to say that the
8003 following output is from the assembler. */
8006 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
8007 const char **argv ATTRIBUTE_UNUSED
)
8009 printf (_("Assembler options\n=================\n\n"));
8010 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
8015 /* Compute a timestamp to initialize flag_random_seed. */
8018 get_local_tick (void)
8022 /* Get some more or less random data. */
8023 #ifdef HAVE_GETTIMEOFDAY
8027 gettimeofday (&tv
, NULL
);
8028 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
8032 time_t now
= time (NULL
);
8034 if (now
!= (time_t)-1)
8035 ret
= (unsigned) now
;
8042 /* %:compare-debug-dump-opt spec function. Save the last argument,
8043 expected to be the last -fdump-final-insns option, or generate a
8047 compare_debug_dump_opt_spec_function (int arg
,
8048 const char **argv ATTRIBUTE_UNUSED
)
8053 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
8056 fatal_error ("too many arguments to %%:compare-debug-dump-opt");
8058 do_spec_2 ("%{fdump-final-insns=*:%*}");
8059 do_spec_1 (" ", 0, NULL
);
8061 if (VEC_length (const_char_p
, argbuf
) > 0
8062 && strcmp (argv
[VEC_length (const_char_p
, argbuf
) - 1], "."))
8067 name
= xstrdup (argv
[VEC_length (const_char_p
, argbuf
) - 1]);
8072 const char *ext
= NULL
;
8074 if (VEC_length (const_char_p
, argbuf
) > 0)
8076 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
8079 else if (!compare_debug
)
8082 do_spec_2 ("%g.gkd");
8084 do_spec_1 (" ", 0, NULL
);
8086 gcc_assert (VEC_length (const_char_p
, argbuf
) > 0);
8088 name
= concat (VEC_last (const_char_p
, argbuf
), ext
, NULL
);
8090 ret
= concat ("-fdump-final-insns=", name
, NULL
);
8093 which
= compare_debug
< 0;
8094 debug_check_temp_file
[which
] = name
;
8098 unsigned HOST_WIDE_INT value
= get_local_tick () ^ getpid ();
8100 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
8104 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
8113 static const char *debug_auxbase_opt
;
8115 /* %:compare-debug-self-opt spec function. Expands to the options
8116 that are to be passed in the second compilation of
8120 compare_debug_self_opt_spec_function (int arg
,
8121 const char **argv ATTRIBUTE_UNUSED
)
8124 fatal_error ("too many arguments to %%:compare-debug-self-opt");
8126 if (compare_debug
>= 0)
8129 do_spec_2 ("%{c|S:%{o*:%*}}");
8130 do_spec_1 (" ", 0, NULL
);
8132 if (VEC_length (const_char_p
, argbuf
) > 0)
8133 debug_auxbase_opt
= concat ("-auxbase-strip ",
8134 VEC_last (const_char_p
, argbuf
),
8137 debug_auxbase_opt
= NULL
;
8140 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
8141 %<fdump-final-insns=* -w -S -o %j \
8142 %{!fcompare-debug-second:-fcompare-debug-second} \
8143 ", compare_debug_opt
, NULL
);
8146 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
8147 options that are to be passed in the second compilation of
8148 compare-debug. It expects, as an argument, the basename of the
8149 current input file name, with the .gk suffix appended to it. */
8152 compare_debug_auxbase_opt_spec_function (int arg
,
8159 fatal_error ("too few arguments to %%:compare-debug-auxbase-opt");
8162 fatal_error ("too many arguments to %%:compare-debug-auxbase-opt");
8164 if (compare_debug
>= 0)
8167 len
= strlen (argv
[0]);
8168 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
8169 fatal_error ("argument to %%:compare-debug-auxbase-opt "
8170 "does not end in .gk");
8172 if (debug_auxbase_opt
)
8173 return debug_auxbase_opt
;
8175 #define OPT "-auxbase "
8178 name
= (char*) xmalloc (sizeof (OPT
) + len
);
8179 memcpy (name
, OPT
, sizeof (OPT
) - 1);
8180 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
8181 name
[sizeof (OPT
) - 1 + len
] = '\0';
8188 /* %:pass-through-libs spec function. Finds all -l options and input
8189 file names in the lib spec passed to it, and makes a list of them
8190 prepended with the plugin option to cause them to be passed through
8191 to the final link after all the new object files have been added. */
8194 pass_through_libs_spec_func (int argc
, const char **argv
)
8196 char *prepended
= xstrdup (" ");
8198 /* Shlemiel the painter's algorithm. Innately horrible, but at least
8199 we know that there will never be more than a handful of strings to
8200 concat, and it's only once per run, so it's not worth optimising. */
8201 for (n
= 0; n
< argc
; n
++)
8203 char *old
= prepended
;
8204 /* Anything that isn't an option is a full path to an output
8205 file; pass it through if it ends in '.a'. Among options,
8207 if (argv
[n
][0] == '-' && argv
[n
][1] == 'l')
8209 const char *lopt
= argv
[n
] + 2;
8210 /* Handle both joined and non-joined -l options. If for any
8211 reason there's a trailing -l with no joined or following
8212 arg just discard it. */
8213 if (!*lopt
&& ++n
>= argc
)
8217 prepended
= concat (prepended
, "-plugin-opt=-pass-through=-l",
8220 else if (!strcmp (".a", argv
[n
] + strlen (argv
[n
]) - 2))
8222 prepended
= concat (prepended
, "-plugin-opt=-pass-through=",
8223 argv
[n
], " ", NULL
);
8225 if (prepended
!= old
)