1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987-2013 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
20 /* This program is the user interface to the C compiler and possibly to
21 other compilers. It is used because compilation is a complicated procedure
22 which involves running several programs and passing temporary files between
23 them, forwarding the users switches to those programs selectively,
24 and deleting the temporary files at the end.
26 CC recognizes how to compile each input file by suffixes in the file names.
27 Once it knows which kind of compilation to perform, the procedure for
28 compilation is specified by a string called a "spec". */
32 #include "coretypes.h"
33 #include "multilib.h" /* before tm.h */
40 #include "diagnostic.h"
45 #include "filenames.h"
47 /* By default there is no special suffix for target executables. */
48 /* FIXME: when autoconf is fixed, remove the host check - dj */
49 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
50 #define HAVE_TARGET_EXECUTABLE_SUFFIX
53 /* By default there is no special suffix for host executables. */
54 #ifdef HOST_EXECUTABLE_SUFFIX
55 #define HAVE_HOST_EXECUTABLE_SUFFIX
57 #define HOST_EXECUTABLE_SUFFIX ""
60 /* By default, the suffix for target object files is ".o". */
61 #ifdef TARGET_OBJECT_SUFFIX
62 #define HAVE_TARGET_OBJECT_SUFFIX
64 #define TARGET_OBJECT_SUFFIX ".o"
67 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
69 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
70 #ifndef LIBRARY_PATH_ENV
71 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
74 /* If a stage of compilation returns an exit status >= 1,
75 compilation of that file ceases. */
77 #define MIN_FATAL_STATUS 1
79 /* Flag set by cppspec.c to 1. */
82 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
83 static bool at_file_supplied
;
85 /* Definition of string containing the arguments given to configure. */
86 #include "configargs.h"
88 /* Flag saying to print the command line options understood by gcc and its
91 static int print_help_list
;
93 /* Flag saying to print the version of gcc and its sub-processes. */
95 static int print_version
;
97 /* Flag indicating whether we should ONLY print the command and
98 arguments (like verbose_flag) without executing the command.
99 Displayed arguments are quoted so that the generated command
100 line is suitable for execution. This is intended for use in
101 shell scripts to capture the driver-generated command line. */
102 static int verbose_only_flag
;
104 /* Flag indicating how to print command line options of sub-processes. */
106 static int print_subprocess_help
;
108 /* Linker suffix passed to -fuse-ld=... */
109 static const char *use_ld
;
111 /* Whether we should report subprocess execution times to a file. */
113 FILE *report_times_to_file
= NULL
;
115 /* Nonzero means place this string before uses of /, so that include
116 and library files can be found in an alternate location. */
118 #ifdef TARGET_SYSTEM_ROOT
119 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
121 static const char *target_system_root
= 0;
124 /* Nonzero means pass the updated target_system_root to the compiler. */
126 static int target_system_root_changed
;
128 /* Nonzero means append this string to target_system_root. */
130 static const char *target_sysroot_suffix
= 0;
132 /* Nonzero means append this string to target_system_root for headers. */
134 static const char *target_sysroot_hdrs_suffix
= 0;
136 /* Nonzero means write "temp" files in source directory
137 and use the source file's name in them, and don't delete them. */
139 static enum save_temps
{
140 SAVE_TEMPS_NONE
, /* no -save-temps */
141 SAVE_TEMPS_CWD
, /* -save-temps in current directory */
142 SAVE_TEMPS_OBJ
/* -save-temps in object directory */
145 /* Output file to use to get the object directory for -save-temps=obj */
146 static char *save_temps_prefix
= 0;
147 static size_t save_temps_length
= 0;
149 /* The compiler version. */
151 static const char *compiler_version
;
153 /* The target version. */
155 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
157 /* The target machine. */
159 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
161 /* Nonzero if cross-compiling.
162 When -b is used, the value comes from the `specs' file. */
164 #ifdef CROSS_DIRECTORY_STRUCTURE
165 static const char *cross_compile
= "1";
167 static const char *cross_compile
= "0";
170 /* Greatest exit code of sub-processes that has been encountered up to
172 static int greatest_status
= 1;
174 /* This is the obstack which we use to allocate many strings. */
176 static struct obstack obstack
;
178 /* This is the obstack to build an environment variable to pass to
179 collect2 that describes all of the relevant switches of what to
180 pass the compiler in building the list of pointers to constructors
183 static struct obstack collect_obstack
;
185 /* Forward declaration for prototypes. */
189 static void init_spec (void);
190 static void store_arg (const char *, int, int);
191 static void insert_wrapper (const char *);
192 static char *load_specs (const char *);
193 static void read_specs (const char *, bool, bool);
194 static void set_spec (const char *, const char *, bool);
195 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
196 static char *build_search_list (const struct path_prefix
*, const char *,
198 static void xputenv (const char *);
199 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
201 static int access_check (const char *, int);
202 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
203 static void add_prefix (struct path_prefix
*, const char *, const char *,
205 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
206 const char *, int, int, int);
207 static char *skip_whitespace (char *);
208 static void delete_if_ordinary (const char *);
209 static void delete_temp_files (void);
210 static void delete_failure_queue (void);
211 static void clear_failure_queue (void);
212 static int check_live_switch (int, int);
213 static const char *handle_braces (const char *);
214 static inline bool input_suffix_matches (const char *, const char *);
215 static inline bool switch_matches (const char *, const char *, int);
216 static inline void mark_matching_switches (const char *, const char *, int);
217 static inline void process_marked_switches (void);
218 static const char *process_brace_body (const char *, const char *, const char *, int, int);
219 static const struct spec_function
*lookup_spec_function (const char *);
220 static const char *eval_spec_function (const char *, const char *);
221 static const char *handle_spec_function (const char *, bool *);
222 static char *save_string (const char *, int);
223 static void set_collect_gcc_options (void);
224 static int do_spec_1 (const char *, int, const char *);
225 static int do_spec_2 (const char *);
226 static void do_option_spec (const char *, const char *);
227 static void do_self_spec (const char *);
228 static const char *find_file (const char *);
229 static int is_directory (const char *, bool);
230 static const char *validate_switches (const char *, bool);
231 static void validate_all_switches (void);
232 static inline void validate_switches_from_spec (const char *, bool);
233 static void give_switch (int, int);
234 static int used_arg (const char *, int);
235 static int default_arg (const char *, int);
236 static void set_multilib_dir (void);
237 static void print_multilib_info (void);
238 static void perror_with_name (const char *);
239 static void display_help (void);
240 static void add_preprocessor_option (const char *, int);
241 static void add_assembler_option (const char *, int);
242 static void add_linker_option (const char *, int);
243 static void process_command (unsigned int, struct cl_decoded_option
*);
244 static int execute (void);
245 static void alloc_args (void);
246 static void clear_args (void);
247 static void fatal_signal (int);
248 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
249 static void init_gcc_specs (struct obstack
*, const char *, const char *,
252 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
253 static const char *convert_filename (const char *, int, int);
256 static const char *getenv_spec_function (int, const char **);
257 static const char *if_exists_spec_function (int, const char **);
258 static const char *if_exists_else_spec_function (int, const char **);
259 static const char *sanitize_spec_function (int, const char **);
260 static const char *replace_outfile_spec_function (int, const char **);
261 static const char *remove_outfile_spec_function (int, const char **);
262 static const char *version_compare_spec_function (int, const char **);
263 static const char *include_spec_function (int, const char **);
264 static const char *find_file_spec_function (int, const char **);
265 static const char *find_plugindir_spec_function (int, const char **);
266 static const char *print_asm_header_spec_function (int, const char **);
267 static const char *compare_debug_dump_opt_spec_function (int, const char **);
268 static const char *compare_debug_self_opt_spec_function (int, const char **);
269 static const char *compare_debug_auxbase_opt_spec_function (int, const char **);
270 static const char *pass_through_libs_spec_func (int, const char **);
271 static const char *replace_extension_spec_func (int, const char **);
272 static char *convert_white_space (char *);
274 /* The Specs Language
276 Specs are strings containing lines, each of which (if not blank)
277 is made up of a program name, and arguments separated by spaces.
278 The program name must be exact and start from root, since no path
279 is searched and it is unreliable to depend on the current working directory.
280 Redirection of input or output is not supported; the subprograms must
281 accept filenames saying what files to read and write.
283 In addition, the specs can contain %-sequences to substitute variable text
284 or for conditional text. Here is a table of all defined %-sequences.
285 Note that spaces are not generated automatically around the results of
286 expanding these sequences; therefore, you can concatenate them together
287 or with constant text in a single argument.
289 %% substitute one % into the program name or argument.
290 %i substitute the name of the input file being processed.
291 %b substitute the basename of the input file being processed.
292 This is the substring up to (and not including) the last period
293 and not including the directory unless -save-temps was specified
294 to put temporaries in a different location.
295 %B same as %b, but include the file suffix (text after the last period).
297 substitute a file name that has suffix SUFFIX and is chosen
298 once per compilation, and mark the argument a la %d. To reduce
299 exposure to denial-of-service attacks, the file name is now
300 chosen in a way that is hard to predict even when previously
301 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
302 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
303 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
304 had been pre-processed. Previously, %g was simply substituted
305 with a file name chosen once per compilation, without regard
306 to any appended suffix (which was therefore treated just like
307 ordinary text), making such attacks more likely to succeed.
309 like %g, but if -pipe is in effect, expands simply to "-".
311 like %g, but if -pipe is in effect, expands to nothing. (We have both
312 %| and %m to accommodate differences between system assemblers; see
313 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
315 like %g, but generates a new temporary file name even if %uSUFFIX
318 substitutes the last file name generated with %uSUFFIX, generating a
319 new one if there is no such last file name. In the absence of any
320 %uSUFFIX, this is just like %gSUFFIX, except they don't share
321 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
322 would involve the generation of two distinct file names, one
323 for each `%g.s' and another for each `%U.s'. Previously, %U was
324 simply substituted with a file name chosen for the previous %u,
325 without regard to any appended suffix.
327 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
328 writable, and if save-temps is off; otherwise, substitute the name
329 of a temporary file, just like %u. This temporary file is not
330 meant for communication between processes, but rather as a junk
333 substitutes .SUFFIX for the suffixes of a matched switch's args when
334 it is subsequently output with %*. SUFFIX is terminated by the next
336 %d marks the argument containing or following the %d as a
337 temporary file name, so that that file will be deleted if GCC exits
338 successfully. Unlike %g, this contributes no text to the argument.
339 %w marks the argument containing or following the %w as the
340 "output file" of this compilation. This puts the argument
341 into the sequence of arguments that %o will substitute later.
342 %V indicates that this compilation produces no "output file".
344 like %{...} but mark last argument supplied within
345 as a file to be deleted on failure.
346 %o substitutes the names of all the output files, with spaces
347 automatically placed around them. You should write spaces
348 around the %o as well or the results are undefined.
349 %o is for use in the specs for running the linker.
350 Input files whose names have no recognized suffix are not compiled
351 at all, but they are included among the output files, so they will
353 %O substitutes the suffix for object files. Note that this is
354 handled specially when it immediately follows %g, %u, or %U
355 (with or without a suffix argument) because of the need for
356 those to form complete file names. The handling is such that
357 %O is treated exactly as if it had already been substituted,
358 except that %g, %u, and %U do not currently support additional
359 SUFFIX characters following %O as they would following, for
361 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
362 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
363 and -B options) and -imultilib as necessary.
364 %s current argument is the name of a library or startup file of some sort.
365 Search for that file in a standard list of directories
366 and substitute the full name found.
367 %eSTR Print STR as an error message. STR is terminated by a newline.
368 Use this when inconsistent options are detected.
369 %nSTR Print STR as a notice. STR is terminated by a newline.
370 %x{OPTION} Accumulate an option for %X.
371 %X Output the accumulated linker options specified by compilations.
372 %Y Output the accumulated assembler options specified by compilations.
373 %Z Output the accumulated preprocessor options specified by compilations.
374 %a process ASM_SPEC as a spec.
375 This allows config.h to specify part of the spec for running as.
376 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
377 used here. This can be used to run a post-processor after the
378 assembler has done its job.
379 %D Dump out a -L option for each directory in startfile_prefixes.
380 If multilib_dir is set, extra entries are generated with it affixed.
381 %l process LINK_SPEC as a spec.
382 %L process LIB_SPEC as a spec.
383 %M Output multilib_os_dir.
384 %G process LIBGCC_SPEC as a spec.
385 %R Output the concatenation of target_system_root and
386 target_sysroot_suffix.
387 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
388 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
389 %C process CPP_SPEC as a spec.
390 %1 process CC1_SPEC as a spec.
391 %2 process CC1PLUS_SPEC as a spec.
392 %* substitute the variable part of a matched option. (See below.)
393 Note that each comma in the substituted string is replaced by
394 a single space. A space is appended after the last substition
395 unless there is more text in current sequence.
396 %<S remove all occurrences of -S from the command line.
397 Note - this command is position dependent. % commands in the
398 spec string before this one will see -S, % commands in the
399 spec string after this one will not.
400 %>S Similar to "%<S", but keep it in the GCC command line.
401 %<S* remove all occurrences of all switches beginning with -S from the
404 Call the named function FUNCTION, passing it ARGS. ARGS is
405 first processed as a nested spec string, then split into an
406 argument vector in the usual fashion. The function returns
407 a string which is processed as if it had appeared literally
408 as part of the current spec.
409 %{S} substitutes the -S switch, if that switch was given to GCC.
410 If that switch was not specified, this substitutes nothing.
411 Here S is a metasyntactic variable.
412 %{S*} substitutes all the switches specified to GCC whose names start
413 with -S. This is used for -o, -I, etc; switches that take
414 arguments. GCC considers `-o foo' as being one switch whose
415 name starts with `o'. %{o*} would substitute this text,
416 including the space; thus, two arguments would be generated.
417 %{S*&T*} likewise, but preserve order of S and T options (the order
418 of S and T in the spec is not significant). Can be any number
419 of ampersand-separated variables; for each the wild card is
420 optional. Useful for CPP as %{D*&U*&A*}.
422 %{S:X} substitutes X, if the -S switch was given to GCC.
423 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
424 %{S*:X} substitutes X if one or more switches whose names start
425 with -S was given to GCC. Normally X is substituted only
426 once, no matter how many such switches appeared. However,
427 if %* appears somewhere in X, then X will be substituted
428 once for each matching switch, with the %* replaced by the
429 part of that switch that matched the '*'. A space will be
430 appended after the last substition unless there is more
431 text in current sequence.
432 %{.S:X} substitutes X, if processing a file with suffix S.
433 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
434 %{,S:X} substitutes X, if processing a file which will use spec S.
435 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
437 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
438 combined with '!', '.', ',', and '*' as above binding stronger
440 If %* appears in X, all of the alternatives must be starred, and
441 only the first matching alternative is substituted.
442 %{%:function(args):X}
443 Call function named FUNCTION with args ARGS. If the function
444 returns non-NULL, then X is substituted, if it returns
445 NULL, it isn't substituted.
446 %{S:X; if S was given to GCC, substitutes X;
447 T:Y; else if T was given to GCC, substitutes Y;
448 :D} else substitutes D. There can be as many clauses as you need.
449 This may be combined with '.', '!', ',', '|', and '*' as above.
451 %(Spec) processes a specification defined in a specs file as *Spec:
453 The conditional text X in a %{S:X} or similar construct may contain
454 other nested % constructs or spaces, or even newlines. They are
455 processed as usual, as described above. Trailing white space in X is
456 ignored. White space may also appear anywhere on the left side of the
457 colon in these constructs, except between . or * and the corresponding
460 The -O, -f, -g, -m, and -W switches are handled specifically in these
461 constructs. If another value of -O or the negated form of a -f, -m, or
462 -W switch is found later in the command line, the earlier switch
463 value is ignored, except with {S*} where S is just one letter; this
464 passes all matching options.
466 The character | at the beginning of the predicate text is used to indicate
467 that a command should be piped to the following command, but only if -pipe
470 Note that it is built into GCC which switches take arguments and which
471 do not. You might think it would be useful to generalize this to
472 allow each compiler's spec to say which switches take arguments. But
473 this cannot be done in a consistent fashion. GCC cannot even decide
474 which input files have been specified without knowing which switches
475 take arguments, and it must know which input files to compile in order
476 to tell which compilers to run.
478 GCC also knows implicitly that arguments starting in `-l' are to be
479 treated as compiler output files, and passed to the linker in their
480 proper position among the other output files. */
482 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
484 /* config.h can define ASM_SPEC to provide extra args to the assembler
485 or extra switch-translations. */
490 /* config.h can define ASM_FINAL_SPEC to run a post processor after
491 the assembler has run. */
492 #ifndef ASM_FINAL_SPEC
493 #define ASM_FINAL_SPEC \
495 objcopy --extract-dwo \
496 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
497 %{c:%{o*:%:replace-extension(%{o*:%*} .dwo)}%{!o*:%b.dwo}}%{!c:%b.dwo} \n\
498 objcopy --strip-dwo \
499 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
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}}"
532 /* When using -fsplit-stack we need to wrap pthread_create, in order
533 to initialize the stack guard. We always use wrapping, rather than
534 shared library ordering, and we keep the wrapper function in
535 libgcc. This is not yet a real spec, though it could become one;
536 it is currently just stuffed into LINK_SPEC. FIXME: This wrapping
537 only works with GNU ld and gold. */
538 #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
541 #define STATIC_LIBASAN_LIBS \
542 " %{static-libasan:%:include(libsanitizer.spec)%(link_libasan)}"
543 #ifdef LIBASAN_EARLY_SPEC
544 #define LIBASAN_SPEC STATIC_LIBASAN_LIBS
545 #elif defined(HAVE_LD_STATIC_DYNAMIC)
546 #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \
547 "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \
550 #define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS
554 #ifndef LIBASAN_EARLY_SPEC
555 #define LIBASAN_EARLY_SPEC ""
559 #define STATIC_LIBTSAN_LIBS \
560 " %{static-libtsan:%:include(libsanitizer.spec)%(link_libtsan)}"
561 #ifdef LIBTSAN_EARLY_SPEC
562 #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
563 #elif defined(HAVE_LD_STATIC_DYNAMIC)
564 #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \
565 "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
568 #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
572 #ifndef LIBTSAN_EARLY_SPEC
573 #define LIBTSAN_EARLY_SPEC ""
577 #define STATIC_LIBLSAN_LIBS \
578 " %{static-liblsan:%:include(libsanitizer.spec)%(link_liblsan)}"
579 #ifdef HAVE_LD_STATIC_DYNAMIC
580 #define LIBLSAN_SPEC "%{!shared:%{static-liblsan:" LD_STATIC_OPTION \
581 "} -llsan %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
582 STATIC_LIBLSAN_LIBS "}"
584 #define LIBLSAN_SPEC "%{!shared:-llsan" STATIC_LIBLSAN_LIBS "}"
588 #ifndef LIBUBSAN_SPEC
589 #define STATIC_LIBUBSAN_LIBS \
590 " %{static-libubsan:%:include(libsanitizer.spec)%(link_libubsan)}"
591 #ifdef HAVE_LD_STATIC_DYNAMIC
592 #define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \
593 "} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
596 #define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS
600 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
603 #if defined(REAL_LIBGCC_SPEC)
604 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
605 #elif defined(LINK_LIBGCC_SPECIAL_1)
606 /* Have gcc do the search for libgcc.a. */
607 #define LIBGCC_SPEC "libgcc.a%s"
609 #define LIBGCC_SPEC "-lgcc"
613 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
614 #ifndef STARTFILE_SPEC
615 #define STARTFILE_SPEC \
616 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
619 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
621 #define ENDFILE_SPEC ""
625 #define LINKER_NAME "collect2"
628 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
629 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
634 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
636 #ifndef ASM_DEBUG_SPEC
637 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
638 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
639 # define ASM_DEBUG_SPEC \
640 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
641 ? "%{!g0:%{gdwarf*:--gdwarf2}%{!gdwarf*:%{g*:--gstabs}}}" ASM_MAP \
642 : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
644 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
645 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP
647 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
648 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP
652 #ifndef ASM_DEBUG_SPEC
653 # define ASM_DEBUG_SPEC ""
656 /* Here is the spec for running the linker, after compiling all files. */
658 /* This is overridable by the target in case they need to specify the
659 -lgcc and -lc order specially, yet not require them to override all
660 of LINK_COMMAND_SPEC. */
661 #ifndef LINK_GCC_C_SEQUENCE_SPEC
662 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
665 #ifndef LINK_SSP_SPEC
666 #ifdef TARGET_LIBC_PROVIDES_SSP
667 #define LINK_SSP_SPEC "%{fstack-protector:}"
669 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-strong|fstack-protector-all:-lssp_nonshared -lssp}"
673 #ifndef LINK_PIE_SPEC
675 #define LINK_PIE_SPEC "%{pie:-pie} "
677 #define LINK_PIE_SPEC "%{pie:} "
681 #ifndef LINK_BUILDID_SPEC
682 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
683 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
687 /* Conditional to test whether the LTO plugin is used or not.
688 FIXME: For slim LTO we will need to enable plugin unconditionally. This
689 still cause problems with PLUGIN_LD != LD and when plugin is built but
690 not useable. For GCC 4.6 we don't support slim LTO and thus we can enable
691 plugin only when LTO is enabled. We still honor explicit
692 -fuse-linker-plugin if the linker used understands -plugin. */
694 /* The linker has some plugin support. */
695 #if HAVE_LTO_PLUGIN > 0
696 /* The linker used has full plugin support, use LTO plugin by default. */
697 #if HAVE_LTO_PLUGIN == 2
698 #define PLUGIN_COND "!fno-use-linker-plugin:%{flto|flto=*|fuse-linker-plugin"
699 #define PLUGIN_COND_CLOSE "}"
701 /* The linker used has limited plugin support, use LTO plugin with explicit
702 -fuse-linker-plugin. */
703 #define PLUGIN_COND "fuse-linker-plugin"
704 #define PLUGIN_COND_CLOSE ""
706 #define LINK_PLUGIN_SPEC \
708 -plugin %(linker_plugin_file) \
709 -plugin-opt=%(lto_wrapper) \
710 -plugin-opt=-fresolution=%u.res \
711 %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \
714 /* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */
715 #define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\
716 %e-fuse-linker-plugin is not supported in this configuration}"
719 /* Linker command line options for -fsanitize= early on the command line. */
720 #ifndef SANITIZER_EARLY_SPEC
721 #define SANITIZER_EARLY_SPEC "\
722 %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_EARLY_SPEC "} \
723 %{%:sanitize(thread):" LIBTSAN_EARLY_SPEC "}}}"
726 /* Linker command line options for -fsanitize= late on the command line. */
727 #ifndef SANITIZER_SPEC
728 #define SANITIZER_SPEC "\
729 %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_SPEC "\
730 %{static:%ecannot specify -static with -fsanitize=address}\
731 %{%:sanitize(thread):%e-fsanitize=address is incompatible with -fsanitize=thread}}\
732 %{%:sanitize(thread):" LIBTSAN_SPEC "\
733 %{!pie:%{!shared:%e-fsanitize=thread linking must be done with -pie or -shared}}}\
734 %{%:sanitize(undefined):" LIBUBSAN_SPEC "}\
735 %{%:sanitize(leak):" LIBLSAN_SPEC "}}}"
738 /* This is the spec to use, once the code for creating the vtable
739 verification runtime library, libvtv.so, has been created. Currently
740 the vtable verification runtime functions are in libstdc++, so we use
741 the spec just below this one. */
742 #ifndef VTABLE_VERIFICATION_SPEC
743 #define VTABLE_VERIFICATION_SPEC "\
744 %{!nostdlib:%{fvtable-verify=std: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}\
745 %{fvtable-verify=preinit: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}}"
748 /* -u* was put back because both BSD and SysV seem to support it. */
749 /* %{static:} simply prevents an error message if the target machine
750 doesn't handle -static. */
751 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
752 scripts which exist in user specified directories, or in standard
754 /* We pass any -flto flags on to the linker, which is expected
755 to understand them. In practice, this means it had better be collect2. */
756 /* %{e*} includes -export-dynamic; see comment in common.opt. */
757 #ifndef LINK_COMMAND_SPEC
758 #define LINK_COMMAND_SPEC "\
759 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
762 "%{flto|flto=*:%<fcompare-debug*} \
763 %{flto} %{flto=*} %l " LINK_PIE_SPEC \
764 "%{fuse-ld=*:-fuse-ld=%*}\
765 %X %{o*} %{e*} %{N} %{n} %{r}\
766 %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}} " VTABLE_VERIFICATION_SPEC " \
767 %{!nostdlib:%{!nostartfiles:%{fupc-link:%:include(upc-crtbegin.spec)%(upc_crtbegin)}}}\
768 %{static:} %{L*} %(mfwrap) %(link_libgcc) " SANITIZER_EARLY_SPEC " %o\
769 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}\
770 %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
771 %{fupc-link:%:include(libgupc.spec)%(link_upc)}\
772 %(mflib) " STACK_SPLIT_SPEC "\
773 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \
774 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
775 %{!nostdlib:%{!nostartfiles:%{fupc-link:%:include(upc-crtend.spec)%(upc_crtend)}}}\
776 %{!nostdlib:%{!nostartfiles:%E}} %{T*} }}}}}}"
779 #ifndef LINK_LIBGCC_SPEC
780 /* Generate -L options for startfile prefix list. */
781 # define LINK_LIBGCC_SPEC "%D"
784 #ifndef STARTFILE_PREFIX_SPEC
785 # define STARTFILE_PREFIX_SPEC ""
789 # define SYSROOT_SPEC "--sysroot=%R"
792 #ifndef SYSROOT_SUFFIX_SPEC
793 # define SYSROOT_SUFFIX_SPEC ""
796 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
797 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
800 static const char *asm_debug
= ASM_DEBUG_SPEC
;
801 static const char *cpp_spec
= CPP_SPEC
;
802 static const char *cc1_spec
= CC1_SPEC
;
803 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
804 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
805 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
806 static const char *asm_spec
= ASM_SPEC
;
807 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
808 static const char *link_spec
= LINK_SPEC
;
809 static const char *lib_spec
= LIB_SPEC
;
810 static const char *link_gomp_spec
= "";
811 static const char *upc_crtbegin_spec
= "";
812 static const char *link_upc_spec
= "";
813 static const char *upc_crtend_spec
= "";
814 static const char *libgcc_spec
= LIBGCC_SPEC
;
815 static const char *endfile_spec
= ENDFILE_SPEC
;
816 static const char *startfile_spec
= STARTFILE_SPEC
;
817 static const char *linker_name_spec
= LINKER_NAME
;
818 static const char *linker_plugin_file_spec
= "";
819 static const char *lto_wrapper_spec
= "";
820 static const char *lto_gcc_spec
= "";
821 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
822 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
823 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
824 static const char *sysroot_spec
= SYSROOT_SPEC
;
825 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
826 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
827 static const char *self_spec
= "";
829 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
830 There should be no need to override these in target dependent files,
831 but we need to copy them to the specs file so that newer versions
832 of the GCC driver can correctly drive older tool chains with the
833 appropriate -B options. */
835 /* When cpplib handles traditional preprocessing, get rid of this, and
836 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
837 that we default the front end language better. */
838 static const char *trad_capable_cpp
=
839 "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}";
841 /* We don't wrap .d files in %W{} since a missing .d file, and
842 therefore no dependency entry, confuses make into thinking a .o
843 file that happens to exist is up-to-date. */
844 static const char *cpp_unique_options
=
845 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
846 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
847 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
848 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
849 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
850 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
851 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
852 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
855 /* This contains cpp options which are common with cc1_options and are passed
856 only when preprocessing only to avoid duplication. We pass the cc1 spec
857 options to the preprocessor so that it the cc1 spec may manipulate
858 options used to set target flags. Those special target flags settings may
859 in turn cause preprocessor symbols to be defined specially. */
860 static const char *cpp_options
=
861 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
862 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
863 %{undef} %{save-temps*:-fpch-preprocess}";
865 /* This contains cpp options which are not passed when the preprocessor
866 output will be used by another program. */
867 static const char *cpp_debug_options
= "%{d*}";
869 /* NB: This is shared amongst all front-ends, except for Ada. */
870 static const char *cc1_options
=
871 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
872 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
873 %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\
874 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
875 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
876 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
877 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
878 %{Qn:-fno-ident} %{Qy:} %{-help:--help}\
879 %{-target-help:--target-help}\
880 %{-version:--version}\
881 %{-help=*:--help=%*}\
882 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
883 %{fsyntax-only:-o %j} %{-param*}\
884 %{coverage:-fprofile-arcs -ftest-coverage}";
886 static const char *upc_options
= "-lang-upc \
887 %{!fno-upc-pre-include:-include gcc-upc.h}";
889 static const char *asm_options
=
890 "%{-target-help:%:print-asm-header()} "
892 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
893 to the assembler equivalents. */
894 "%{v} %{w:-W} %{I*} "
896 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
898 static const char *invoke_as
=
899 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
901 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
902 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
906 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
907 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
911 /* Some compilers have limits on line lengths, and the multilib_select
912 and/or multilib_matches strings can be very long, so we build them at
914 static struct obstack multilib_obstack
;
915 static const char *multilib_select
;
916 static const char *multilib_matches
;
917 static const char *multilib_defaults
;
918 static const char *multilib_exclusions
;
919 static const char *multilib_reuse
;
921 /* Check whether a particular argument is a default argument. */
923 #ifndef MULTILIB_DEFAULTS
924 #define MULTILIB_DEFAULTS { "" }
927 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
929 #ifndef DRIVER_SELF_SPECS
930 #define DRIVER_SELF_SPECS ""
933 /* Linking to libgomp implies pthreads. This is particularly important
934 for targets that use different start files and suchlike. */
935 #ifndef GOMP_SELF_SPECS
936 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
939 /* Likewise for -fgnu-tm. */
940 #ifndef GTM_SELF_SPECS
941 #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}"
944 static const char *const driver_self_specs
[] = {
945 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
946 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
, GTM_SELF_SPECS
949 #ifndef OPTION_DEFAULT_SPECS
950 #define OPTION_DEFAULT_SPECS { "", "" }
959 static const struct default_spec
960 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
964 struct user_specs
*next
;
965 const char *filename
;
968 static struct user_specs
*user_specs_head
, *user_specs_tail
;
971 /* Record the mapping from file suffixes for compilation specs. */
975 const char *suffix
; /* Use this compiler for input files
976 whose names end in this suffix. */
978 const char *spec
; /* To use this compiler, run this spec. */
980 const char *cpp_spec
; /* If non-NULL, substitute this spec
981 for `%C', rather than the usual
983 const int combinable
; /* If nonzero, compiler can deal with
984 multiple source files at once (IMA). */
985 const int needs_preprocessing
; /* If nonzero, source files need to
986 be run through a preprocessor. */
989 /* Pointer to a vector of `struct compiler' that gives the spec for
990 compiling a file, based on its suffix.
991 A file that does not end in any of these suffixes will be passed
992 unchanged to the loader and nothing else will be done to it.
994 An entry containing two 0s is used to terminate the vector.
996 If multiple entries match a file, the last matching one is used. */
998 static struct compiler
*compilers
;
1000 /* Number of entries in `compilers', not counting the null terminator. */
1002 static int n_compilers
;
1004 /* The default list of file name suffixes and their compilation specs. */
1006 static const struct compiler default_compilers
[] =
1008 /* Add lists of suffixes of known languages here. If those languages
1009 were not present when we built the driver, we will hit these copies
1010 and be given a more meaningful error than "file not used since
1011 linking is not done". */
1012 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1013 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1014 {".mii", "#Objective-C++", 0, 0, 0},
1015 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1016 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1017 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1018 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1019 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1020 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1021 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1022 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1023 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1024 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1025 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1026 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1027 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1028 {".r", "#Ratfor", 0, 0, 0},
1029 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
1030 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
1031 {".upc", "#UPC", 0, 0, 0},
1032 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
1033 {".go", "#Go", 0, 1, 0},
1034 /* Next come the entries for C. */
1035 {".c", "@c", 0, 0, 1},
1037 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1038 external preprocessor if -save-temps is given. */
1039 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1042 %eGNU C no longer supports -traditional without -E}\
1043 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1044 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1045 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1047 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1048 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1049 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
1051 "%{!E:%e-E or -x required when input is from standard input}\
1052 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1053 {".h", "@c-header", 0, 0, 0},
1055 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1056 external preprocessor if -save-temps is given. */
1057 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1059 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1060 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1061 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1063 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
1064 %W{o*:--output-pch=%*}}%V}\
1065 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1066 cc1 %(cpp_unique_options) %(cc1_options)\
1067 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
1068 %W{o*:--output-pch=%*}}%V}}}}}}", 0, 0, 0},
1069 {".i", "@cpp-output", 0, 0, 0},
1071 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
1072 {".s", "@assembler", 0, 0, 0},
1074 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
1075 {".sx", "@assembler-with-cpp", 0, 0, 0},
1076 {".S", "@assembler-with-cpp", 0, 0, 0},
1077 {"@assembler-with-cpp",
1078 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1079 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1080 %{E|M|MM:%(cpp_debug_options)}\
1081 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1082 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1084 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1085 %{E|M|MM:%(cpp_debug_options)}\
1086 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1087 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1092 /* Mark end of table. */
1096 /* Number of elements in default_compilers, not counting the terminator. */
1098 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1100 typedef char *char_p
; /* For DEF_VEC_P. */
1102 /* A vector of options to give to the linker.
1103 These options are accumulated by %x,
1104 and substituted into the linker command with %X. */
1105 static vec
<char_p
> linker_options
;
1107 /* A vector of options to give to the assembler.
1108 These options are accumulated by -Wa,
1109 and substituted into the assembler command with %Y. */
1110 static vec
<char_p
> assembler_options
;
1112 /* A vector of options to give to the preprocessor.
1113 These options are accumulated by -Wp,
1114 and substituted into the preprocessor command with %Z. */
1115 static vec
<char_p
> preprocessor_options
;
1118 skip_whitespace (char *p
)
1122 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1123 be considered whitespace. */
1124 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1126 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1140 /* Structures to keep track of prefixes to try when looking for files. */
1144 const char *prefix
; /* String to prepend to the path. */
1145 struct prefix_list
*next
; /* Next in linked list. */
1146 int require_machine_suffix
; /* Don't use without machine_suffix. */
1147 /* 2 means try both machine_suffix and just_machine_suffix. */
1148 int priority
; /* Sort key - priority within list. */
1149 int os_multilib
; /* 1 if OS multilib scheme should be used,
1150 0 for GCC multilib scheme. */
1155 struct prefix_list
*plist
; /* List of prefixes to try */
1156 int max_len
; /* Max length of a prefix in PLIST */
1157 const char *name
; /* Name of this list (used in config stuff) */
1160 /* List of prefixes to try when looking for executables. */
1162 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1164 /* List of prefixes to try when looking for startup (crt0) files. */
1166 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1168 /* List of prefixes to try when looking for include files. */
1170 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1172 /* Suffix to attach to directories searched for commands.
1173 This looks like `MACHINE/VERSION/'. */
1175 static const char *machine_suffix
= 0;
1177 /* Suffix to attach to directories searched for commands.
1178 This is just `MACHINE/'. */
1180 static const char *just_machine_suffix
= 0;
1182 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1184 static const char *gcc_exec_prefix
;
1186 /* Adjusted value of standard_libexec_prefix. */
1188 static const char *gcc_libexec_prefix
;
1190 /* Default prefixes to attach to command names. */
1192 #ifndef STANDARD_STARTFILE_PREFIX_1
1193 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1195 #ifndef STANDARD_STARTFILE_PREFIX_2
1196 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1199 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1200 #undef MD_EXEC_PREFIX
1201 #undef MD_STARTFILE_PREFIX
1202 #undef MD_STARTFILE_PREFIX_1
1205 /* If no prefixes defined, use the null string, which will disable them. */
1206 #ifndef MD_EXEC_PREFIX
1207 #define MD_EXEC_PREFIX ""
1209 #ifndef MD_STARTFILE_PREFIX
1210 #define MD_STARTFILE_PREFIX ""
1212 #ifndef MD_STARTFILE_PREFIX_1
1213 #define MD_STARTFILE_PREFIX_1 ""
1216 /* These directories are locations set at configure-time based on the
1217 --prefix option provided to configure. Their initializers are
1218 defined in Makefile.in. These paths are not *directly* used when
1219 gcc_exec_prefix is set because, in that case, we know where the
1220 compiler has been installed, and use paths relative to that
1221 location instead. */
1222 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1223 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1224 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1225 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1227 /* For native compilers, these are well-known paths containing
1228 components that may be provided by the system. For cross
1229 compilers, these paths are not used. */
1230 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1231 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1232 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1233 static const char *const standard_startfile_prefix_1
1234 = STANDARD_STARTFILE_PREFIX_1
;
1235 static const char *const standard_startfile_prefix_2
1236 = STANDARD_STARTFILE_PREFIX_2
;
1238 /* A relative path to be used in finding the location of tools
1239 relative to the driver. */
1240 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1242 /* Subdirectory to use for locating libraries. Set by
1243 set_multilib_dir based on the compilation options. */
1245 static const char *multilib_dir
;
1247 /* Subdirectory to use for locating libraries in OS conventions. Set by
1248 set_multilib_dir based on the compilation options. */
1250 static const char *multilib_os_dir
;
1252 /* Subdirectory to use for locating libraries in multiarch conventions. Set by
1253 set_multilib_dir based on the compilation options. */
1255 static const char *multiarch_dir
;
1257 /* Structure to keep track of the specs that have been defined so far.
1258 These are accessed using %(specname) in a compiler or link
1263 /* The following 2 fields must be first */
1264 /* to allow EXTRA_SPECS to be initialized */
1265 const char *name
; /* name of the spec. */
1266 const char *ptr
; /* available ptr if no static pointer */
1268 /* The following fields are not initialized */
1269 /* by EXTRA_SPECS */
1270 const char **ptr_spec
; /* pointer to the spec itself. */
1271 struct spec_list
*next
; /* Next spec in linked list. */
1272 int name_len
; /* length of the name */
1273 bool user_p
; /* whether string come from file spec. */
1274 bool alloc_p
; /* whether string was allocated */
1277 #define INIT_STATIC_SPEC(NAME,PTR) \
1278 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, false, false }
1280 /* List of statically defined specs. */
1281 static struct spec_list static_specs
[] =
1283 INIT_STATIC_SPEC ("asm", &asm_spec
),
1284 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1285 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1286 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1287 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1288 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1289 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1290 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1291 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1292 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1293 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1294 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1295 INIT_STATIC_SPEC ("upc_options", &upc_options
),
1296 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1297 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1298 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1299 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1300 INIT_STATIC_SPEC ("link", &link_spec
),
1301 INIT_STATIC_SPEC ("lib", &lib_spec
),
1302 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1303 INIT_STATIC_SPEC ("upc_crtbegin", &upc_crtbegin_spec
),
1304 INIT_STATIC_SPEC ("link_upc", &link_upc_spec
),
1305 INIT_STATIC_SPEC ("upc_crtend", &upc_crtend_spec
),
1306 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1307 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1308 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1309 INIT_STATIC_SPEC ("version", &compiler_version
),
1310 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1311 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1312 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1313 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1314 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1315 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1316 INIT_STATIC_SPEC ("multilib_reuse", &multilib_reuse
),
1317 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1318 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1319 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1320 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1321 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1322 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1323 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1324 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1325 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1326 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1327 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1328 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1329 INIT_STATIC_SPEC ("self_spec", &self_spec
),
1332 #ifdef EXTRA_SPECS /* additional specs needed */
1333 /* Structure to keep track of just the first two args of a spec_list.
1334 That is all that the EXTRA_SPECS macro gives us. */
1337 const char *const name
;
1338 const char *const ptr
;
1341 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1342 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1345 /* List of dynamically allocates specs that have been defined so far. */
1347 static struct spec_list
*specs
= (struct spec_list
*) 0;
1349 /* List of static spec functions. */
1351 static const struct spec_function static_spec_functions
[] =
1353 { "getenv", getenv_spec_function
},
1354 { "if-exists", if_exists_spec_function
},
1355 { "if-exists-else", if_exists_else_spec_function
},
1356 { "sanitize", sanitize_spec_function
},
1357 { "replace-outfile", replace_outfile_spec_function
},
1358 { "remove-outfile", remove_outfile_spec_function
},
1359 { "version-compare", version_compare_spec_function
},
1360 { "include", include_spec_function
},
1361 { "find-file", find_file_spec_function
},
1362 { "find-plugindir", find_plugindir_spec_function
},
1363 { "print-asm-header", print_asm_header_spec_function
},
1364 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1365 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1366 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1367 { "pass-through-libs", pass_through_libs_spec_func
},
1368 { "replace-extension", replace_extension_spec_func
},
1369 #ifdef EXTRA_SPEC_FUNCTIONS
1370 EXTRA_SPEC_FUNCTIONS
1375 static int processing_spec_function
;
1377 /* Add appropriate libgcc specs to OBSTACK, taking into account
1378 various permutations of -shared-libgcc, -shared, and such. */
1380 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1382 #ifndef USE_LD_AS_NEEDED
1383 #define USE_LD_AS_NEEDED 0
1387 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1388 const char *static_name
, const char *eh_name
)
1392 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1393 "%{!static:%{!static-libgcc:"
1394 #if USE_LD_AS_NEEDED
1395 "%{!shared-libgcc:",
1396 static_name
, " " LD_AS_NEEDED_OPTION
" ",
1397 shared_name
, " " LD_NO_AS_NEEDED_OPTION
1400 shared_name
, "%{!shared: ", static_name
, "}"
1404 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1405 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1409 "%{shared-libgcc:", shared_name
, "}"
1410 "%{!shared-libgcc:", static_name
, "}"
1413 "%{shared:", shared_name
, "}"
1418 obstack_grow (obstack
, buf
, strlen (buf
));
1421 #endif /* ENABLE_SHARED_LIBGCC */
1423 /* Initialize the specs lookup routines. */
1428 struct spec_list
*next
= (struct spec_list
*) 0;
1429 struct spec_list
*sl
= (struct spec_list
*) 0;
1433 return; /* Already initialized. */
1436 fnotice (stderr
, "Using built-in specs.\n");
1439 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1441 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1443 sl
= &extra_specs
[i
];
1444 sl
->name
= extra_specs_1
[i
].name
;
1445 sl
->ptr
= extra_specs_1
[i
].ptr
;
1447 sl
->name_len
= strlen (sl
->name
);
1448 sl
->ptr_spec
= &sl
->ptr
;
1453 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1455 sl
= &static_specs
[i
];
1460 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1461 /* ??? If neither -shared-libgcc nor --static-libgcc was
1462 seen, then we should be making an educated guess. Some proposed
1463 heuristics for ELF include:
1465 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1466 program will be doing dynamic loading, which will likely
1467 need the shared libgcc.
1469 (2) If "-ldl", then it's also a fair bet that we're doing
1472 (3) For each ET_DYN we're linking against (either through -lfoo
1473 or /some/path/foo.so), check to see whether it or one of
1474 its dependencies depends on a shared libgcc.
1478 If the runtime is fixed to look for program headers instead
1479 of calling __register_frame_info at all, for each object,
1480 use the shared libgcc if any EH symbol referenced.
1482 If crtstuff is fixed to not invoke __register_frame_info
1483 automatically, for each object, use the shared libgcc if
1484 any non-empty unwind section found.
1486 Doing any of this probably requires invoking an external program to
1487 do the actual object file scanning. */
1489 const char *p
= libgcc_spec
;
1492 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1493 when given the proper command line arguments. */
1496 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1498 init_gcc_specs (&obstack
,
1500 #ifdef USE_LIBUNWIND_EXCEPTIONS
1506 #ifdef USE_LIBUNWIND_EXCEPTIONS
1507 # ifdef HAVE_LD_STATIC_DYNAMIC
1508 " %{!static:" LD_STATIC_OPTION
"} -lunwind"
1509 " %{!static:" LD_DYNAMIC_OPTION
"}"
1519 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1521 /* Ug. We don't know shared library extensions. Hope that
1522 systems that use this form don't do shared libraries. */
1523 init_gcc_specs (&obstack
,
1527 #ifdef USE_LIBUNWIND_EXCEPTIONS
1536 obstack_1grow (&obstack
, *p
);
1537 in_sep
= (*p
== ' ');
1542 obstack_1grow (&obstack
, '\0');
1543 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1546 #ifdef USE_AS_TRADITIONAL_FORMAT
1547 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1549 static const char tf
[] = "--traditional-format ";
1550 obstack_grow (&obstack
, tf
, sizeof (tf
) - 1);
1551 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1552 asm_spec
= XOBFINISH (&obstack
, const char *);
1556 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \
1557 defined LINKER_HASH_STYLE
1558 # ifdef LINK_BUILDID_SPEC
1559 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1560 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof (LINK_BUILDID_SPEC
) - 1);
1562 # ifdef LINK_EH_SPEC
1563 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1564 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof (LINK_EH_SPEC
) - 1);
1566 # ifdef LINKER_HASH_STYLE
1567 /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had
1570 static const char hash_style
[] = "--hash-style=";
1571 obstack_grow (&obstack
, hash_style
, sizeof (hash_style
) - 1);
1572 obstack_grow (&obstack
, LINKER_HASH_STYLE
, sizeof (LINKER_HASH_STYLE
) - 1);
1573 obstack_1grow (&obstack
, ' ');
1576 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1577 link_spec
= XOBFINISH (&obstack
, const char *);
1583 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1584 removed; If the spec starts with a + then SPEC is added to the end of the
1588 set_spec (const char *name
, const char *spec
, bool user_p
)
1590 struct spec_list
*sl
;
1591 const char *old_spec
;
1592 int name_len
= strlen (name
);
1595 /* If this is the first call, initialize the statically allocated specs. */
1598 struct spec_list
*next
= (struct spec_list
*) 0;
1599 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1601 sl
= &static_specs
[i
];
1608 /* See if the spec already exists. */
1609 for (sl
= specs
; sl
; sl
= sl
->next
)
1610 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1615 /* Not found - make it. */
1616 sl
= XNEW (struct spec_list
);
1617 sl
->name
= xstrdup (name
);
1618 sl
->name_len
= name_len
;
1619 sl
->ptr_spec
= &sl
->ptr
;
1621 *(sl
->ptr_spec
) = "";
1626 old_spec
= *(sl
->ptr_spec
);
1627 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1628 ? concat (old_spec
, spec
+ 1, NULL
)
1633 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1636 /* Free the old spec. */
1637 if (old_spec
&& sl
->alloc_p
)
1638 free (CONST_CAST (char *, old_spec
));
1640 sl
->user_p
= user_p
;
1644 /* Accumulate a command (program name and args), and run it. */
1646 typedef const char *const_char_p
; /* For DEF_VEC_P. */
1648 /* Vector of pointers to arguments in the current line of specifications. */
1650 static vec
<const_char_p
> argbuf
;
1652 /* Position in the argbuf vector containing the name of the output file
1653 (the value associated with the "-o" flag). */
1655 static int have_o_argbuf_index
= 0;
1657 /* Were the options -c, -S or -E passed. */
1658 static int have_c
= 0;
1660 /* Was the option -o passed. */
1661 static int have_o
= 0;
1663 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1664 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1667 static struct temp_name
{
1668 const char *suffix
; /* suffix associated with the code. */
1669 int length
; /* strlen (suffix). */
1670 int unique
; /* Indicates whether %g or %u/%U was used. */
1671 const char *filename
; /* associated filename. */
1672 int filename_length
; /* strlen (filename). */
1673 struct temp_name
*next
;
1676 /* Number of commands executed so far. */
1678 static int execution_count
;
1680 /* Number of commands that exited with a signal. */
1682 static int signal_count
;
1684 /* Allocate the argument vector. */
1692 /* Clear out the vector of arguments (after a command is executed). */
1697 argbuf
.truncate (0);
1700 /* Add one argument to the vector at the end.
1701 This is done when a space is seen or at the end of the line.
1702 If DELETE_ALWAYS is nonzero, the arg is a filename
1703 and the file should be deleted eventually.
1704 If DELETE_FAILURE is nonzero, the arg is a filename
1705 and the file should be deleted if this compilation fails. */
1708 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1710 argbuf
.safe_push (arg
);
1712 if (strcmp (arg
, "-o") == 0)
1713 have_o_argbuf_index
= argbuf
.length ();
1714 if (delete_always
|| delete_failure
)
1717 /* If the temporary file we should delete is specified as
1718 part of a joined argument extract the filename. */
1720 && (p
= strrchr (arg
, '=')))
1722 record_temp_file (arg
, delete_always
, delete_failure
);
1726 /* Load specs from a file name named FILENAME, replacing occurrences of
1727 various different types of line-endings, \r\n, \n\r and just \r, with
1731 load_specs (const char *filename
)
1735 struct stat statbuf
;
1742 fnotice (stderr
, "Reading specs from %s\n", filename
);
1744 /* Open and stat the file. */
1745 desc
= open (filename
, O_RDONLY
, 0);
1747 pfatal_with_name (filename
);
1748 if (stat (filename
, &statbuf
) < 0)
1749 pfatal_with_name (filename
);
1751 /* Read contents of file into BUFFER. */
1752 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
1753 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1755 pfatal_with_name (filename
);
1756 buffer
[readlen
] = 0;
1759 specs
= XNEWVEC (char, readlen
+ 1);
1761 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1767 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1769 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1783 /* Read compilation specs from a file named FILENAME,
1784 replacing the default ones.
1786 A suffix which starts with `*' is a definition for
1787 one of the machine-specific sub-specs. The "suffix" should be
1788 *asm, *cc1, *cpp, *link, *startfile, etc.
1789 The corresponding spec is stored in asm_spec, etc.,
1790 rather than in the `compilers' vector.
1792 Anything invalid in the file is a fatal error. */
1795 read_specs (const char *filename
, bool main_p
, bool user_p
)
1800 buffer
= load_specs (filename
);
1802 /* Scan BUFFER for specs, putting them in the vector. */
1808 char *in
, *out
, *p1
, *p2
, *p3
;
1810 /* Advance P in BUFFER to the next nonblank nocomment line. */
1811 p
= skip_whitespace (p
);
1815 /* Is this a special command that starts with '%'? */
1816 /* Don't allow this for the main specs file, since it would
1817 encourage people to overwrite it. */
1818 if (*p
== '%' && !main_p
)
1821 while (*p
&& *p
!= '\n')
1827 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1828 && (p1
[sizeof "%include" - 1] == ' '
1829 || p1
[sizeof "%include" - 1] == '\t'))
1833 p1
+= sizeof ("%include");
1834 while (*p1
== ' ' || *p1
== '\t')
1837 if (*p1
++ != '<' || p
[-2] != '>')
1838 fatal_error ("specs %%include syntax malformed after "
1840 (long) (p1
- buffer
+ 1));
1843 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1844 read_specs (new_filename
? new_filename
: p1
, false, user_p
);
1847 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1848 && (p1
[sizeof "%include_noerr" - 1] == ' '
1849 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1853 p1
+= sizeof "%include_noerr";
1854 while (*p1
== ' ' || *p1
== '\t')
1857 if (*p1
++ != '<' || p
[-2] != '>')
1858 fatal_error ("specs %%include syntax malformed after "
1860 (long) (p1
- buffer
+ 1));
1863 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1865 read_specs (new_filename
, false, user_p
);
1866 else if (verbose_flag
)
1867 fnotice (stderr
, "could not find specs file %s\n", p1
);
1870 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1871 && (p1
[sizeof "%rename" - 1] == ' '
1872 || p1
[sizeof "%rename" - 1] == '\t'))
1875 struct spec_list
*sl
;
1876 struct spec_list
*newsl
;
1878 /* Get original name. */
1879 p1
+= sizeof "%rename";
1880 while (*p1
== ' ' || *p1
== '\t')
1883 if (! ISALPHA ((unsigned char) *p1
))
1884 fatal_error ("specs %%rename syntax malformed after "
1886 (long) (p1
- buffer
));
1889 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1892 if (*p2
!= ' ' && *p2
!= '\t')
1893 fatal_error ("specs %%rename syntax malformed after "
1895 (long) (p2
- buffer
));
1899 while (*p2
== ' ' || *p2
== '\t')
1902 if (! ISALPHA ((unsigned char) *p2
))
1903 fatal_error ("specs %%rename syntax malformed after "
1905 (long) (p2
- buffer
));
1907 /* Get new spec name. */
1909 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
1913 fatal_error ("specs %%rename syntax malformed after "
1915 (long) (p3
- buffer
));
1918 for (sl
= specs
; sl
; sl
= sl
->next
)
1919 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1923 fatal_error ("specs %s spec was not found to be renamed", p1
);
1925 if (strcmp (p1
, p2
) == 0)
1928 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
1929 if (strcmp (newsl
->name
, p2
) == 0)
1930 fatal_error ("%s: attempt to rename spec %qs to "
1931 "already defined spec %qs",
1936 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
1938 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
1942 set_spec (p2
, *(sl
->ptr_spec
), user_p
);
1944 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
1946 *(sl
->ptr_spec
) = "";
1951 fatal_error ("specs unknown %% command after %ld characters",
1952 (long) (p1
- buffer
));
1955 /* Find the colon that should end the suffix. */
1957 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1960 /* The colon shouldn't be missing. */
1962 fatal_error ("specs file malformed after %ld characters",
1963 (long) (p1
- buffer
));
1965 /* Skip back over trailing whitespace. */
1967 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1970 /* Copy the suffix to a string. */
1971 suffix
= save_string (p
, p2
- p
);
1972 /* Find the next line. */
1973 p
= skip_whitespace (p1
+ 1);
1975 fatal_error ("specs file malformed after %ld characters",
1976 (long) (p
- buffer
));
1979 /* Find next blank line or end of string. */
1980 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1983 /* Specs end at the blank line and do not include the newline. */
1984 spec
= save_string (p
, p1
- p
);
1987 /* Delete backslash-newline sequences from the spec. */
1992 if (in
[0] == '\\' && in
[1] == '\n')
1994 else if (in
[0] == '#')
1995 while (*in
&& *in
!= '\n')
2003 if (suffix
[0] == '*')
2005 if (! strcmp (suffix
, "*link_command"))
2006 link_command_spec
= spec
;
2008 set_spec (suffix
+ 1, spec
, user_p
);
2012 /* Add this pair to the vector. */
2014 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2016 compilers
[n_compilers
].suffix
= suffix
;
2017 compilers
[n_compilers
].spec
= spec
;
2019 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2023 link_command_spec
= spec
;
2026 if (link_command_spec
== 0)
2027 fatal_error ("spec file has no spec for linking");
2030 /* Record the names of temporary files we tell compilers to write,
2031 and delete them at the end of the run. */
2033 /* This is the common prefix we use to make temp file names.
2034 It is chosen once for each run of this program.
2035 It is substituted into a spec by %g or %j.
2036 Thus, all temp file names contain this prefix.
2037 In practice, all temp file names start with this prefix.
2039 This prefix comes from the envvar TMPDIR if it is defined;
2040 otherwise, from the P_tmpdir macro if that is defined;
2041 otherwise, in /usr/tmp or /tmp;
2042 or finally the current directory if all else fails. */
2044 static const char *temp_filename
;
2046 /* Length of the prefix. */
2048 static int temp_filename_length
;
2050 /* Define the list of temporary files to delete. */
2055 struct temp_file
*next
;
2058 /* Queue of files to delete on success or failure of compilation. */
2059 static struct temp_file
*always_delete_queue
;
2060 /* Queue of files to delete on failure of compilation. */
2061 static struct temp_file
*failure_delete_queue
;
2063 /* Record FILENAME as a file to be deleted automatically.
2064 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2065 otherwise delete it in any case.
2066 FAIL_DELETE nonzero means delete it if a compilation step fails;
2067 otherwise delete it in any case. */
2070 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2072 char *const name
= xstrdup (filename
);
2076 struct temp_file
*temp
;
2077 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2078 if (! filename_cmp (name
, temp
->name
))
2081 temp
= XNEW (struct temp_file
);
2082 temp
->next
= always_delete_queue
;
2084 always_delete_queue
= temp
;
2091 struct temp_file
*temp
;
2092 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2093 if (! filename_cmp (name
, temp
->name
))
2099 temp
= XNEW (struct temp_file
);
2100 temp
->next
= failure_delete_queue
;
2102 failure_delete_queue
= temp
;
2108 /* Delete all the temporary files whose names we previously recorded. */
2110 #ifndef DELETE_IF_ORDINARY
2111 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2114 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2115 if (unlink (NAME) < 0) \
2117 perror_with_name (NAME); \
2122 delete_if_ordinary (const char *name
)
2128 printf ("Delete %s? (y or n) ", name
);
2132 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2135 if (i
== 'y' || i
== 'Y')
2137 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2141 delete_temp_files (void)
2143 struct temp_file
*temp
;
2145 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2146 delete_if_ordinary (temp
->name
);
2147 always_delete_queue
= 0;
2150 /* Delete all the files to be deleted on error. */
2153 delete_failure_queue (void)
2155 struct temp_file
*temp
;
2157 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2158 delete_if_ordinary (temp
->name
);
2162 clear_failure_queue (void)
2164 failure_delete_queue
= 0;
2167 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2169 If DO_MULTI is true iterate over the paths twice, first with multilib
2170 suffix then without, otherwise iterate over the paths once without
2171 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2172 to avoid visiting the same path twice, but we could do better. For
2173 instance, /usr/lib/../lib is considered different from /usr/lib.
2174 At least EXTRA_SPACE chars past the end of the path passed to
2175 CALLBACK are available for use by the callback.
2176 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2178 Returns the value returned by CALLBACK. */
2181 for_each_path (const struct path_prefix
*paths
,
2184 void *(*callback
) (char *, void *),
2185 void *callback_info
)
2187 struct prefix_list
*pl
;
2188 const char *multi_dir
= NULL
;
2189 const char *multi_os_dir
= NULL
;
2190 const char *multiarch_suffix
= NULL
;
2191 const char *multi_suffix
;
2192 const char *just_multi_suffix
;
2195 bool skip_multi_dir
= false;
2196 bool skip_multi_os_dir
= false;
2198 multi_suffix
= machine_suffix
;
2199 just_multi_suffix
= just_machine_suffix
;
2200 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2202 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2203 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2204 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2206 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2207 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2209 multiarch_suffix
= concat (multiarch_dir
, dir_separator_str
, NULL
);
2213 size_t multi_dir_len
= 0;
2214 size_t multi_os_dir_len
= 0;
2215 size_t multiarch_len
= 0;
2217 size_t just_suffix_len
;
2221 multi_dir_len
= strlen (multi_dir
);
2223 multi_os_dir_len
= strlen (multi_os_dir
);
2224 if (multiarch_suffix
)
2225 multiarch_len
= strlen (multiarch_suffix
);
2226 suffix_len
= strlen (multi_suffix
);
2227 just_suffix_len
= strlen (just_multi_suffix
);
2231 len
= paths
->max_len
+ extra_space
+ 1;
2232 len
+= MAX (MAX (suffix_len
, multi_os_dir_len
), multiarch_len
);
2233 path
= XNEWVEC (char, len
);
2236 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2238 len
= strlen (pl
->prefix
);
2239 memcpy (path
, pl
->prefix
, len
);
2241 /* Look first in MACHINE/VERSION subdirectory. */
2242 if (!skip_multi_dir
)
2244 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2245 ret
= callback (path
, callback_info
);
2250 /* Some paths are tried with just the machine (ie. target)
2251 subdir. This is used for finding as, ld, etc. */
2253 && pl
->require_machine_suffix
== 2)
2255 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2256 ret
= callback (path
, callback_info
);
2261 /* Now try the multiarch path. */
2263 && !pl
->require_machine_suffix
&& multiarch_dir
)
2265 memcpy (path
+ len
, multiarch_suffix
, multiarch_len
+ 1);
2266 ret
= callback (path
, callback_info
);
2271 /* Now try the base path. */
2272 if (!pl
->require_machine_suffix
2273 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2275 const char *this_multi
;
2276 size_t this_multi_len
;
2278 if (pl
->os_multilib
)
2280 this_multi
= multi_os_dir
;
2281 this_multi_len
= multi_os_dir_len
;
2285 this_multi
= multi_dir
;
2286 this_multi_len
= multi_dir_len
;
2290 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2294 ret
= callback (path
, callback_info
);
2302 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2305 /* Run through the paths again, this time without multilibs.
2306 Don't repeat any we have already seen. */
2309 free (CONST_CAST (char *, multi_dir
));
2311 free (CONST_CAST (char *, multi_suffix
));
2312 multi_suffix
= machine_suffix
;
2313 free (CONST_CAST (char *, just_multi_suffix
));
2314 just_multi_suffix
= just_machine_suffix
;
2317 skip_multi_dir
= true;
2320 free (CONST_CAST (char *, multi_os_dir
));
2321 multi_os_dir
= NULL
;
2324 skip_multi_os_dir
= true;
2329 free (CONST_CAST (char *, multi_dir
));
2330 free (CONST_CAST (char *, multi_suffix
));
2331 free (CONST_CAST (char *, just_multi_suffix
));
2334 free (CONST_CAST (char *, multi_os_dir
));
2340 /* Callback for build_search_list. Adds path to obstack being built. */
2342 struct add_to_obstack_info
{
2349 add_to_obstack (char *path
, void *data
)
2351 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2353 if (info
->check_dir
&& !is_directory (path
, false))
2356 if (!info
->first_time
)
2357 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2359 obstack_grow (info
->ob
, path
, strlen (path
));
2361 info
->first_time
= false;
2365 /* Add or change the value of an environment variable, outputting the
2366 change to standard error if in verbose mode. */
2368 xputenv (const char *string
)
2371 fnotice (stderr
, "%s\n", string
);
2372 putenv (CONST_CAST (char *, string
));
2375 /* Build a list of search directories from PATHS.
2376 PREFIX is a string to prepend to the list.
2377 If CHECK_DIR_P is true we ensure the directory exists.
2378 If DO_MULTI is true, multilib paths are output first, then
2380 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2381 It is also used by the --print-search-dirs flag. */
2384 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2385 bool check_dir
, bool do_multi
)
2387 struct add_to_obstack_info info
;
2389 info
.ob
= &collect_obstack
;
2390 info
.check_dir
= check_dir
;
2391 info
.first_time
= true;
2393 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2394 obstack_1grow (&collect_obstack
, '=');
2396 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2398 obstack_1grow (&collect_obstack
, '\0');
2399 return XOBFINISH (&collect_obstack
, char *);
2402 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2406 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2409 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2412 /* Check whether NAME can be accessed in MODE. This is like access,
2413 except that it never considers directories to be executable. */
2416 access_check (const char *name
, int mode
)
2422 if (stat (name
, &st
) < 0
2423 || S_ISDIR (st
.st_mode
))
2427 return access (name
, mode
);
2430 /* Callback for find_a_file. Appends the file name to the directory
2431 path. If the resulting file exists in the right mode, return the
2432 full pathname to the file. */
2434 struct file_at_path_info
{
2443 file_at_path (char *path
, void *data
)
2445 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2446 size_t len
= strlen (path
);
2448 memcpy (path
+ len
, info
->name
, info
->name_len
);
2449 len
+= info
->name_len
;
2451 /* Some systems have a suffix for executable files.
2452 So try appending that first. */
2453 if (info
->suffix_len
)
2455 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2456 if (access_check (path
, info
->mode
) == 0)
2461 if (access_check (path
, info
->mode
) == 0)
2467 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2468 access to check permissions. If DO_MULTI is true, search multilib
2469 paths then non-multilib paths, otherwise do not search multilib paths.
2470 Return 0 if not found, otherwise return its name, allocated with malloc. */
2473 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2476 struct file_at_path_info info
;
2478 #ifdef DEFAULT_ASSEMBLER
2479 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2480 return xstrdup (DEFAULT_ASSEMBLER
);
2483 #ifdef DEFAULT_LINKER
2484 if (! strcmp (name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2485 return xstrdup (DEFAULT_LINKER
);
2488 /* Determine the filename to execute (special case for absolute paths). */
2490 if (IS_ABSOLUTE_PATH (name
))
2492 if (access (name
, mode
) == 0)
2493 return xstrdup (name
);
2499 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2500 info
.name_len
= strlen (info
.name
);
2501 info
.suffix_len
= strlen (info
.suffix
);
2504 return (char*) for_each_path (pprefix
, do_multi
,
2505 info
.name_len
+ info
.suffix_len
,
2506 file_at_path
, &info
);
2509 /* Ranking of prefixes in the sort list. -B prefixes are put before
2512 enum path_prefix_priority
2514 PREFIX_PRIORITY_B_OPT
,
2515 PREFIX_PRIORITY_LAST
2518 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2519 order according to PRIORITY. Within each PRIORITY, new entries are
2522 If WARN is nonzero, we will warn if no file is found
2523 through this prefix. WARN should point to an int
2524 which will be set to 1 if this entry is used.
2526 COMPONENT is the value to be passed to update_path.
2528 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2529 the complete value of machine_suffix.
2530 2 means try both machine_suffix and just_machine_suffix. */
2533 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2534 const char *component
, /* enum prefix_priority */ int priority
,
2535 int require_machine_suffix
, int os_multilib
)
2537 struct prefix_list
*pl
, **prev
;
2540 for (prev
= &pprefix
->plist
;
2541 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2542 prev
= &(*prev
)->next
)
2545 /* Keep track of the longest prefix. */
2547 prefix
= update_path (prefix
, component
);
2548 len
= strlen (prefix
);
2549 if (len
> pprefix
->max_len
)
2550 pprefix
->max_len
= len
;
2552 pl
= XNEW (struct prefix_list
);
2553 pl
->prefix
= prefix
;
2554 pl
->require_machine_suffix
= require_machine_suffix
;
2555 pl
->priority
= priority
;
2556 pl
->os_multilib
= os_multilib
;
2558 /* Insert after PREV. */
2563 /* Same as add_prefix, but prepending target_system_root to prefix. */
2564 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2566 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2567 const char *component
,
2568 /* enum prefix_priority */ int priority
,
2569 int require_machine_suffix
, int os_multilib
)
2571 if (!IS_ABSOLUTE_PATH (prefix
))
2572 fatal_error ("system path %qs is not absolute", prefix
);
2574 if (target_system_root
)
2576 char *sysroot_no_trailing_dir_separator
= xstrdup (target_system_root
);
2577 size_t sysroot_len
= strlen (target_system_root
);
2580 && target_system_root
[sysroot_len
- 1] == DIR_SEPARATOR
)
2581 sysroot_no_trailing_dir_separator
[sysroot_len
- 1] = '\0';
2583 if (target_sysroot_suffix
)
2584 prefix
= concat (sysroot_no_trailing_dir_separator
,
2585 target_sysroot_suffix
, prefix
, NULL
);
2587 prefix
= concat (sysroot_no_trailing_dir_separator
, prefix
, NULL
);
2589 free (sysroot_no_trailing_dir_separator
);
2591 /* We have to override this because GCC's notion of sysroot
2592 moves along with GCC. */
2596 add_prefix (pprefix
, prefix
, component
, priority
,
2597 require_machine_suffix
, os_multilib
);
2600 /* Execute the command specified by the arguments on the current line of spec.
2601 When using pipes, this includes several piped-together commands
2602 with `|' between them.
2604 Return 0 if successful, -1 if failed. */
2610 int n_commands
; /* # of command. */
2612 struct pex_obj
*pex
;
2615 const char *prog
; /* program name. */
2616 const char **argv
; /* vector of args. */
2620 struct command
*commands
; /* each command buffer with above info. */
2622 gcc_assert (!processing_spec_function
);
2626 string
= find_a_file (&exec_prefixes
,
2627 argbuf
[0], X_OK
, false);
2630 insert_wrapper (wrapper_string
);
2633 /* Count # of piped commands. */
2634 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2635 if (strcmp (arg
, "|") == 0)
2638 /* Get storage for each command. */
2639 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2641 /* Split argbuf into its separate piped processes,
2642 and record info about each one.
2643 Also search for the programs that are to be run. */
2645 argbuf
.safe_push (0);
2647 commands
[0].prog
= argbuf
[0]; /* first command. */
2648 commands
[0].argv
= argbuf
.address ();
2650 if (!wrapper_string
)
2652 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2653 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2656 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2657 if (arg
&& strcmp (arg
, "|") == 0)
2658 { /* each command. */
2659 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2660 fatal_error ("-pipe not supported");
2662 argbuf
[i
] = 0; /* Termination of
2664 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2665 commands
[n_commands
].argv
2666 = &(argbuf
.address ())[i
+ 1];
2667 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2670 commands
[n_commands
].argv
[0] = string
;
2674 /* If -v, print what we are about to do, and maybe query. */
2678 /* For help listings, put a blank line between sub-processes. */
2679 if (print_help_list
)
2680 fputc ('\n', stderr
);
2682 /* Print each piped command as a separate line. */
2683 for (i
= 0; i
< n_commands
; i
++)
2685 const char *const *j
;
2687 if (verbose_only_flag
)
2689 for (j
= commands
[i
].argv
; *j
; j
++)
2692 for (p
= *j
; *p
; ++p
)
2693 if (!ISALNUM ((unsigned char) *p
)
2694 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
2698 fprintf (stderr
, " \"");
2699 for (p
= *j
; *p
; ++p
)
2701 if (*p
== '"' || *p
== '\\' || *p
== '$')
2702 fputc ('\\', stderr
);
2705 fputc ('"', stderr
);
2707 /* If it's empty, print "". */
2709 fprintf (stderr
, " \"\"");
2711 fprintf (stderr
, " %s", *j
);
2715 for (j
= commands
[i
].argv
; *j
; j
++)
2716 /* If it's empty, print "". */
2718 fprintf (stderr
, " \"\"");
2720 fprintf (stderr
, " %s", *j
);
2722 /* Print a pipe symbol after all but the last command. */
2723 if (i
+ 1 != n_commands
)
2724 fprintf (stderr
, " |");
2725 fprintf (stderr
, "\n");
2728 if (verbose_only_flag
!= 0)
2730 /* verbose_only_flag should act as if the spec was
2731 executed, so increment execution_count before
2732 returning. This prevents spurious warnings about
2733 unused linker input files, etc. */
2738 fnotice (stderr
, "\nGo ahead? (y or n) ");
2742 while (getchar () != '\n')
2745 if (i
!= 'y' && i
!= 'Y')
2750 #ifdef ENABLE_VALGRIND_CHECKING
2751 /* Run the each command through valgrind. To simplify prepending the
2752 path to valgrind and the option "-q" (for quiet operation unless
2753 something triggers), we allocate a separate argv array. */
2755 for (i
= 0; i
< n_commands
; i
++)
2761 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2764 argv
= XALLOCAVEC (const char *, argc
+ 3);
2766 argv
[0] = VALGRIND_PATH
;
2768 for (j
= 2; j
< argc
+ 2; j
++)
2769 argv
[j
] = commands
[i
].argv
[j
- 2];
2772 commands
[i
].argv
= argv
;
2773 commands
[i
].prog
= argv
[0];
2777 /* Run each piped subprocess. */
2779 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
2780 ? PEX_RECORD_TIMES
: 0),
2781 progname
, temp_filename
);
2783 fatal_error ("pex_init failed: %m");
2785 for (i
= 0; i
< n_commands
; i
++)
2789 const char *string
= commands
[i
].argv
[0];
2791 errmsg
= pex_run (pex
,
2792 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
2793 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
2794 string
, CONST_CAST (char **, commands
[i
].argv
),
2799 fatal_error (errmsg
);
2803 pfatal_with_name (errmsg
);
2807 if (string
!= commands
[i
].prog
)
2808 free (CONST_CAST (char *, string
));
2813 /* Wait for all the subprocesses to finish. */
2817 struct pex_time
*times
= NULL
;
2820 statuses
= (int *) alloca (n_commands
* sizeof (int));
2821 if (!pex_get_status (pex
, n_commands
, statuses
))
2822 fatal_error ("failed to get exit status: %m");
2824 if (report_times
|| report_times_to_file
)
2826 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
2827 if (!pex_get_times (pex
, n_commands
, times
))
2828 fatal_error ("failed to get process times: %m");
2833 for (i
= 0; i
< n_commands
; ++i
)
2835 int status
= statuses
[i
];
2837 if (WIFSIGNALED (status
))
2840 /* SIGPIPE is a special case. It happens in -pipe mode
2841 when the compiler dies before the preprocessor is done,
2842 or the assembler dies before the compiler is done.
2843 There's generally been an error already, and this is
2844 just fallout. So don't generate another error unless
2845 we would otherwise have succeeded. */
2846 if (WTERMSIG (status
) == SIGPIPE
2847 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2854 internal_error ("%s (program %s)",
2855 strsignal (WTERMSIG (status
)), commands
[i
].prog
);
2857 else if (WIFEXITED (status
)
2858 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2860 if (WEXITSTATUS (status
) > greatest_status
)
2861 greatest_status
= WEXITSTATUS (status
);
2865 if (report_times
|| report_times_to_file
)
2867 struct pex_time
*pt
= ×
[i
];
2870 ut
= ((double) pt
->user_seconds
2871 + (double) pt
->user_microseconds
/ 1.0e6
);
2872 st
= ((double) pt
->system_seconds
2873 + (double) pt
->system_microseconds
/ 1.0e6
);
2878 fnotice (stderr
, "# %s %.2f %.2f\n",
2879 commands
[i
].prog
, ut
, st
);
2881 if (report_times_to_file
)
2884 const char *const *j
;
2886 fprintf (report_times_to_file
, "%g %g", ut
, st
);
2888 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
2891 for (p
= *j
; *p
; ++p
)
2892 if (*p
== '"' || *p
== '\\' || *p
== '$'
2898 fprintf (report_times_to_file
, " \"");
2899 for (p
= *j
; *p
; ++p
)
2901 if (*p
== '"' || *p
== '\\' || *p
== '$')
2902 fputc ('\\', report_times_to_file
);
2903 fputc (*p
, report_times_to_file
);
2905 fputc ('"', report_times_to_file
);
2908 fprintf (report_times_to_file
, " %s", *j
);
2911 fputc ('\n', report_times_to_file
);
2921 /* Find all the switches given to us
2922 and make a vector describing them.
2923 The elements of the vector are strings, one per switch given.
2924 If a switch uses following arguments, then the `part1' field
2925 is the switch itself and the `args' field
2926 is a null-terminated vector containing the following arguments.
2927 Bits in the `live_cond' field are:
2928 SWITCH_LIVE to indicate this switch is true in a conditional spec.
2929 SWITCH_FALSE to indicate this switch is overridden by a later switch.
2930 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
2931 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored
2932 in all do_spec calls afterwards. Used for %<S from self specs.
2933 The `validated' field is nonzero if any spec has looked at this switch;
2934 if it remains zero at the end of the run, it must be meaningless. */
2936 #define SWITCH_LIVE (1 << 0)
2937 #define SWITCH_FALSE (1 << 1)
2938 #define SWITCH_IGNORE (1 << 2)
2939 #define SWITCH_IGNORE_PERMANENTLY (1 << 3)
2940 #define SWITCH_KEEP_FOR_GCC (1 << 4)
2946 unsigned int live_cond
;
2952 static struct switchstr
*switches
;
2954 static int n_switches
;
2956 static int n_switches_alloc
;
2958 /* Set to zero if -fcompare-debug is disabled, positive if it's
2959 enabled and we're running the first compilation, negative if it's
2960 enabled and we're running the second compilation. For most of the
2961 time, it's in the range -1..1, but it can be temporarily set to 2
2962 or 3 to indicate that the -fcompare-debug flags didn't come from
2963 the command-line, but rather from the GCC_COMPARE_DEBUG environment
2964 variable, until a synthesized -fcompare-debug flag is added to the
2968 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
2969 int compare_debug_second
;
2971 /* Set to the flags that should be passed to the second compilation in
2972 a -fcompare-debug compilation. */
2973 const char *compare_debug_opt
;
2975 static struct switchstr
*switches_debug_check
[2];
2977 static int n_switches_debug_check
[2];
2979 static int n_switches_alloc_debug_check
[2];
2981 static char *debug_check_temp_file
[2];
2983 /* Language is one of three things:
2985 1) The name of a real programming language.
2986 2) NULL, indicating that no one has figured out
2988 3) '*', indicating that the file should be passed
2993 const char *language
;
2994 struct compiler
*incompiler
;
2999 /* Also a vector of input files specified. */
3001 static struct infile
*infiles
;
3005 static int n_infiles_alloc
;
3007 /* True if multiple input files are being compiled to a single
3010 static bool combine_inputs
;
3012 /* This counts the number of libraries added by lang_specific_driver, so that
3013 we can tell if there were any user supplied any files or libraries. */
3015 static int added_libraries
;
3017 /* And a vector of corresponding output files is made up later. */
3019 const char **outfiles
;
3021 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3023 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3024 is true if we should look for an executable suffix. DO_OBJ
3025 is true if we should look for an object suffix. */
3028 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3029 int do_obj ATTRIBUTE_UNUSED
)
3031 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3039 len
= strlen (name
);
3041 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3042 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3043 if (do_obj
&& len
> 2
3044 && name
[len
- 2] == '.'
3045 && name
[len
- 1] == 'o')
3047 obstack_grow (&obstack
, name
, len
- 2);
3048 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3049 name
= XOBFINISH (&obstack
, const char *);
3053 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3054 /* If there is no filetype, make it the executable suffix (which includes
3055 the "."). But don't get confused if we have just "-o". */
3056 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3059 for (i
= len
- 1; i
>= 0; i
--)
3060 if (IS_DIR_SEPARATOR (name
[i
]))
3063 for (i
++; i
< len
; i
++)
3067 obstack_grow (&obstack
, name
, len
);
3068 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3069 strlen (TARGET_EXECUTABLE_SUFFIX
));
3070 name
= XOBFINISH (&obstack
, const char *);
3077 /* Display the command line switches accepted by gcc. */
3081 printf (_("Usage: %s [options] file...\n"), progname
);
3082 fputs (_("Options:\n"), stdout
);
3084 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3085 fputs (_(" --help Display this information\n"), stdout
);
3086 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3087 fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...]\n"), stdout
);
3088 fputs (_(" Display specific types of command line options\n"), stdout
);
3090 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3091 fputs (_(" --version Display compiler version information\n"), stdout
);
3092 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3093 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3094 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3095 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3096 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3097 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3098 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3100 -print-multiarch Display the target's normalized GNU triplet, used as\n\
3101 a component in the library path\n"), stdout
);
3102 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3104 -print-multi-lib Display the mapping between command line options and\n\
3105 multiple library search directories\n"), stdout
);
3106 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3107 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout
);
3108 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
3109 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3110 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3111 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3112 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3113 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3114 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3115 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3116 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout
);
3118 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3119 prefixes to other gcc components\n"), stdout
);
3120 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3121 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3122 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3123 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3125 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3126 and libraries\n"), stdout
);
3127 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3128 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3129 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3130 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3131 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3132 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3133 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3134 fputs (_(" -pie Create a position independent executable\n"), stdout
);
3135 fputs (_(" -shared Create a shared library\n"), stdout
);
3137 -x <language> Specify the language of the following input files\n\
3138 Permissible languages include: c c++ assembler none\n\
3139 'none' means revert to the default behavior of\n\
3140 guessing the language based on the file's extension\n\
3144 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3145 passed on to the various sub-processes invoked by %s. In order to pass\n\
3146 other options on to these processes the -W<letter> options must be used.\n\
3149 /* The rest of the options are displayed by invocations of the various
3154 add_preprocessor_option (const char *option
, int len
)
3156 preprocessor_options
.safe_push (save_string (option
, len
));
3160 add_assembler_option (const char *option
, int len
)
3162 assembler_options
.safe_push (save_string (option
, len
));
3166 add_linker_option (const char *option
, int len
)
3168 linker_options
.safe_push (save_string (option
, len
));
3171 /* Allocate space for an input file in infiles. */
3176 if (n_infiles_alloc
== 0)
3178 n_infiles_alloc
= 16;
3179 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3181 else if (n_infiles_alloc
== n_infiles
)
3183 n_infiles_alloc
*= 2;
3184 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3188 /* Store an input file with the given NAME and LANGUAGE in
3192 add_infile (const char *name
, const char *language
)
3195 infiles
[n_infiles
].name
= name
;
3196 infiles
[n_infiles
++].language
= language
;
3199 /* Allocate space for a switch in switches. */
3204 if (n_switches_alloc
== 0)
3206 n_switches_alloc
= 16;
3207 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3209 else if (n_switches_alloc
== n_switches
)
3211 n_switches_alloc
*= 2;
3212 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3216 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3217 as validated if VALIDATED and KNOWN if it is an internal switch. */
3220 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3221 bool validated
, bool known
)
3224 switches
[n_switches
].part1
= opt
+ 1;
3226 switches
[n_switches
].args
= 0;
3229 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3230 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3231 switches
[n_switches
].args
[n_args
] = NULL
;
3234 switches
[n_switches
].live_cond
= 0;
3235 switches
[n_switches
].validated
= validated
;
3236 switches
[n_switches
].known
= known
;
3237 switches
[n_switches
].ordering
= 0;
3241 /* Handle an option DECODED that is unknown to the option-processing
3245 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3247 const char *opt
= decoded
->arg
;
3248 if (opt
[1] == 'W' && opt
[2] == 'n' && opt
[3] == 'o' && opt
[4] == '-'
3249 && !(decoded
->errors
& CL_ERR_NEGATIVE
))
3251 /* Leave unknown -Wno-* options for the compiler proper, to be
3252 diagnosed only if there are warnings. */
3253 save_switch (decoded
->canonical_option
[0],
3254 decoded
->canonical_option_num_elements
- 1,
3255 &decoded
->canonical_option
[1], false, true);
3258 if (decoded
->opt_index
== OPT_SPECIAL_unknown
)
3260 /* Give it a chance to define it a a spec file. */
3261 save_switch (decoded
->canonical_option
[0],
3262 decoded
->canonical_option_num_elements
- 1,
3263 &decoded
->canonical_option
[1], false, false);
3270 /* Handle an option DECODED that is not marked as CL_DRIVER.
3271 LANG_MASK will always be CL_DRIVER. */
3274 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3275 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3277 /* At this point, non-driver options are accepted (and expected to
3278 be passed down by specs) unless marked to be rejected by the
3279 driver. Options to be rejected by the driver but accepted by the
3280 compilers proper are treated just like completely unknown
3282 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3284 if (option
->cl_reject_driver
)
3285 error ("unrecognized command line option %qs",
3286 decoded
->orig_option_with_args_text
);
3288 save_switch (decoded
->canonical_option
[0],
3289 decoded
->canonical_option_num_elements
- 1,
3290 &decoded
->canonical_option
[1], false, true);
3293 static const char *spec_lang
= 0;
3294 static int last_language_n_infiles
;
3296 /* Handle a driver option; arguments and return value as for
3300 driver_handle_option (struct gcc_options
*opts
,
3301 struct gcc_options
*opts_set
,
3302 const struct cl_decoded_option
*decoded
,
3303 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
3305 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
,
3306 diagnostic_context
*dc
)
3308 size_t opt_index
= decoded
->opt_index
;
3309 const char *arg
= decoded
->arg
;
3310 const char *compare_debug_replacement_opt
;
3311 int value
= decoded
->value
;
3312 bool validated
= false;
3313 bool do_save
= true;
3315 gcc_assert (opts
== &global_options
);
3316 gcc_assert (opts_set
== &global_options_set
);
3317 gcc_assert (kind
== DK_UNSPECIFIED
);
3318 gcc_assert (loc
== UNKNOWN_LOCATION
);
3319 gcc_assert (dc
== global_dc
);
3325 struct spec_list
*sl
;
3327 for (sl
= specs
; sl
; sl
= sl
->next
)
3328 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3329 if (link_command_spec
)
3330 printf ("*link_command:\n%s\n\n", link_command_spec
);
3334 case OPT_dumpversion
:
3335 printf ("%s\n", spec_version
);
3338 case OPT_dumpmachine
:
3339 printf ("%s\n", spec_machine
);
3345 /* CPP driver cannot obtain switch from cc1_options. */
3347 add_preprocessor_option ("--version", strlen ("--version"));
3348 add_assembler_option ("--version", strlen ("--version"));
3349 add_linker_option ("--version", strlen ("--version"));
3353 print_help_list
= 1;
3355 /* CPP driver cannot obtain switch from cc1_options. */
3357 add_preprocessor_option ("--help", 6);
3358 add_assembler_option ("--help", 6);
3359 add_linker_option ("--help", 6);
3363 print_subprocess_help
= 2;
3366 case OPT__target_help
:
3367 print_subprocess_help
= 1;
3369 /* CPP driver cannot obtain switch from cc1_options. */
3371 add_preprocessor_option ("--target-help", 13);
3372 add_assembler_option ("--target-help", 13);
3373 add_linker_option ("--target-help", 13);
3376 case OPT__no_sysroot_suffix
:
3377 case OPT_pass_exit_codes
:
3378 case OPT_print_search_dirs
:
3379 case OPT_print_file_name_
:
3380 case OPT_print_prog_name_
:
3381 case OPT_print_multi_lib
:
3382 case OPT_print_multi_directory
:
3383 case OPT_print_sysroot
:
3384 case OPT_print_multi_os_directory
:
3385 case OPT_print_multiarch
:
3386 case OPT_print_sysroot_headers_suffix
:
3389 /* These options set the variables specified in common.opt
3390 automatically, and do not need to be saved for spec
3395 case OPT_print_libgcc_file_name
:
3396 print_file_name
= "libgcc.a";
3400 case OPT_fuse_ld_bfd
:
3404 case OPT_fuse_ld_gold
:
3408 case OPT_fcompare_debug_second
:
3409 compare_debug_second
= 1;
3412 case OPT_fcompare_debug
:
3416 compare_debug_replacement_opt
= "-fcompare-debug=";
3418 goto compare_debug_with_arg
;
3421 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
3423 goto compare_debug_with_arg
;
3430 case OPT_fcompare_debug_
:
3431 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
3432 compare_debug_with_arg
:
3433 gcc_assert (decoded
->canonical_option_num_elements
== 1);
3434 gcc_assert (arg
!= NULL
);
3439 if (compare_debug
< 0)
3440 compare_debug_opt
= NULL
;
3442 compare_debug_opt
= arg
;
3443 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
, true);
3449 /* Pass the rest of this option to the assembler. */
3451 /* Split the argument at commas. */
3453 for (j
= 0; arg
[j
]; j
++)
3456 add_assembler_option (arg
+ prev
, j
- prev
);
3460 /* Record the part after the last comma. */
3461 add_assembler_option (arg
+ prev
, j
- prev
);
3469 /* Pass the rest of this option to the preprocessor. */
3471 /* Split the argument at commas. */
3473 for (j
= 0; arg
[j
]; j
++)
3476 add_preprocessor_option (arg
+ prev
, j
- prev
);
3480 /* Record the part after the last comma. */
3481 add_preprocessor_option (arg
+ prev
, j
- prev
);
3489 /* Split the argument at commas. */
3491 for (j
= 0; arg
[j
]; j
++)
3494 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
3497 /* Record the part after the last comma. */
3498 add_infile (arg
+ prev
, "*");
3504 add_infile (arg
, "*");
3508 case OPT_Xpreprocessor
:
3509 add_preprocessor_option (arg
, strlen (arg
));
3513 case OPT_Xassembler
:
3514 add_assembler_option (arg
, strlen (arg
));
3519 /* POSIX allows separation of -l and the lib arg; canonicalize
3520 by concatenating -l with its arg */
3521 add_infile (concat ("-l", arg
, NULL
), "*");
3526 /* Similarly, canonicalize -L for linkers that may not accept
3527 separate arguments. */
3528 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
, true);
3533 save_switch (concat ("-F", arg
, NULL
), 0, NULL
, validated
, true);
3536 case OPT_save_temps
:
3537 save_temps_flag
= SAVE_TEMPS_CWD
;
3541 case OPT_save_temps_
:
3542 if (strcmp (arg
, "cwd") == 0)
3543 save_temps_flag
= SAVE_TEMPS_CWD
;
3544 else if (strcmp (arg
, "obj") == 0
3545 || strcmp (arg
, "object") == 0)
3546 save_temps_flag
= SAVE_TEMPS_OBJ
;
3548 fatal_error ("%qs is an unknown -save-temps option",
3549 decoded
->orig_option_with_args_text
);
3552 case OPT_no_canonical_prefixes
:
3553 /* Already handled as a special case, so ignored here. */
3559 /* These options set the variables specified in common.opt
3560 automatically, but do need to be saved for spec
3566 struct user_specs
*user
= XNEW (struct user_specs
);
3568 user
->next
= (struct user_specs
*) 0;
3569 user
->filename
= arg
;
3570 if (user_specs_tail
)
3571 user_specs_tail
->next
= user
;
3573 user_specs_head
= user
;
3574 user_specs_tail
= user
;
3580 target_system_root
= arg
;
3581 target_system_root_changed
= 1;
3586 if (report_times_to_file
)
3587 fclose (report_times_to_file
);
3588 report_times_to_file
= fopen (arg
, "a");
3594 This is similar to -v except that there is no execution
3595 of the commands and the echoed arguments are quoted. It
3596 is intended for use in shell scripts to capture the
3597 driver-generated command line. */
3598 verbose_only_flag
++;
3605 size_t len
= strlen (arg
);
3607 /* Catch the case where the user has forgotten to append a
3608 directory separator to the path. Note, they may be using
3609 -B to add an executable name prefix, eg "i386-elf-", in
3610 order to distinguish between multiple installations of
3611 GCC in the same directory. Hence we must check to see
3612 if appending a directory separator actually makes a
3613 valid directory name. */
3614 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
3615 && is_directory (arg
, false))
3617 char *tmp
= XNEWVEC (char, len
+ 2);
3619 tmp
[len
] = DIR_SEPARATOR
;
3624 add_prefix (&exec_prefixes
, arg
, NULL
,
3625 PREFIX_PRIORITY_B_OPT
, 0, 0);
3626 add_prefix (&startfile_prefixes
, arg
, NULL
,
3627 PREFIX_PRIORITY_B_OPT
, 0, 0);
3628 add_prefix (&include_prefixes
, arg
, NULL
,
3629 PREFIX_PRIORITY_B_OPT
, 0, 0);
3636 if (!strcmp (spec_lang
, "none"))
3637 /* Suppress the warning if -xnone comes after the last input
3638 file, because alternate command interfaces like g++ might
3639 find it useful to place -xnone after each input file. */
3642 last_language_n_infiles
= n_infiles
;
3648 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3649 arg
= convert_filename (arg
, ! have_c
, 0);
3651 /* Save the output name in case -save-temps=obj was used. */
3652 save_temps_prefix
= xstrdup (arg
);
3653 /* On some systems, ld cannot handle "-o" without a space. So
3654 split the option from its argument. */
3655 save_switch ("-o", 1, &arg
, validated
, true);
3658 case OPT_static_libgcc
:
3659 case OPT_shared_libgcc
:
3660 case OPT_static_libgfortran
:
3661 case OPT_static_libstdc__
:
3662 /* These are always valid, since gcc.c itself understands the
3663 first two, gfortranspec.c understands -static-libgfortran and
3664 g++spec.c understands -static-libstdc++ */
3669 /* Various driver options need no special processing at this
3670 point, having been handled in a prescan above or being
3671 handled by specs. */
3676 save_switch (decoded
->canonical_option
[0],
3677 decoded
->canonical_option_num_elements
- 1,
3678 &decoded
->canonical_option
[1], validated
, true);
3682 /* Put the driver's standard set of option handlers in *HANDLERS. */
3685 set_option_handlers (struct cl_option_handlers
*handlers
)
3687 handlers
->unknown_option_callback
= driver_unknown_option_callback
;
3688 handlers
->wrong_lang_callback
= driver_wrong_lang_callback
;
3689 handlers
->num_handlers
= 3;
3690 handlers
->handlers
[0].handler
= driver_handle_option
;
3691 handlers
->handlers
[0].mask
= CL_DRIVER
;
3692 handlers
->handlers
[1].handler
= common_handle_option
;
3693 handlers
->handlers
[1].mask
= CL_COMMON
;
3694 handlers
->handlers
[2].handler
= target_handle_option
;
3695 handlers
->handlers
[2].mask
= CL_TARGET
;
3698 /* Create the vector `switches' and its contents.
3699 Store its length in `n_switches'. */
3702 process_command (unsigned int decoded_options_count
,
3703 struct cl_decoded_option
*decoded_options
)
3707 char *tooldir_prefix
, *tooldir_prefix2
;
3708 char *(*get_relative_prefix
) (const char *, const char *,
3709 const char *) = NULL
;
3710 struct cl_option_handlers handlers
;
3713 gcc_exec_prefix
= getenv ("GCC_EXEC_PREFIX");
3717 added_libraries
= 0;
3719 /* Figure compiler version from version string. */
3721 compiler_version
= temp1
= xstrdup (version_string
);
3723 for (; *temp1
; ++temp1
)
3732 /* Handle any -no-canonical-prefixes flag early, to assign the function
3733 that builds relative prefixes. This function creates default search
3734 paths that are needed later in normal option handling. */
3736 for (j
= 1; j
< decoded_options_count
; j
++)
3738 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
3740 get_relative_prefix
= make_relative_prefix_ignore_links
;
3744 if (! get_relative_prefix
)
3745 get_relative_prefix
= make_relative_prefix
;
3747 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3748 see if we can create it from the pathname specified in
3749 decoded_options[0].arg. */
3751 gcc_libexec_prefix
= standard_libexec_prefix
;
3753 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3754 if (!gcc_exec_prefix
)
3756 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3757 standard_bindir_prefix
,
3758 standard_exec_prefix
);
3759 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3760 standard_bindir_prefix
,
3761 standard_libexec_prefix
);
3762 if (gcc_exec_prefix
)
3763 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3767 /* make_relative_prefix requires a program name, but
3768 GCC_EXEC_PREFIX is typically a directory name with a trailing
3769 / (which is ignored by make_relative_prefix), so append a
3771 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3772 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
3773 standard_exec_prefix
,
3774 standard_libexec_prefix
);
3776 /* The path is unrelocated, so fallback to the original setting. */
3777 if (!gcc_libexec_prefix
)
3778 gcc_libexec_prefix
= standard_libexec_prefix
;
3784 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3785 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3786 or an automatically created GCC_EXEC_PREFIX from
3787 decoded_options[0].arg. */
3789 /* Do language-specific adjustment/addition of flags. */
3790 lang_specific_driver (&decoded_options
, &decoded_options_count
,
3793 if (gcc_exec_prefix
)
3795 int len
= strlen (gcc_exec_prefix
);
3797 if (len
> (int) sizeof ("/lib/gcc/") - 1
3798 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3800 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3801 if (IS_DIR_SEPARATOR (*temp
)
3802 && filename_ncmp (temp
+ 1, "lib", 3) == 0
3803 && IS_DIR_SEPARATOR (temp
[4])
3804 && filename_ncmp (temp
+ 5, "gcc", 3) == 0)
3805 len
-= sizeof ("/lib/gcc/") - 1;
3808 set_std_prefix (gcc_exec_prefix
, len
);
3809 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3810 PREFIX_PRIORITY_LAST
, 0, 0);
3811 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3812 PREFIX_PRIORITY_LAST
, 0, 0);
3815 /* COMPILER_PATH and LIBRARY_PATH have values
3816 that are lists of directory names with colons. */
3818 temp
= getenv ("COMPILER_PATH");
3821 const char *startp
, *endp
;
3822 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3824 startp
= endp
= temp
;
3827 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3829 strncpy (nstore
, startp
, endp
- startp
);
3831 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3832 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3834 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3835 nstore
[endp
- startp
+ 1] = 0;
3838 nstore
[endp
- startp
] = 0;
3839 add_prefix (&exec_prefixes
, nstore
, 0,
3840 PREFIX_PRIORITY_LAST
, 0, 0);
3841 add_prefix (&include_prefixes
, nstore
, 0,
3842 PREFIX_PRIORITY_LAST
, 0, 0);
3845 endp
= startp
= endp
+ 1;
3852 temp
= getenv (LIBRARY_PATH_ENV
);
3853 if (temp
&& *cross_compile
== '0')
3855 const char *startp
, *endp
;
3856 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3858 startp
= endp
= temp
;
3861 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3863 strncpy (nstore
, startp
, endp
- startp
);
3865 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3866 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3868 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3869 nstore
[endp
- startp
+ 1] = 0;
3872 nstore
[endp
- startp
] = 0;
3873 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3874 PREFIX_PRIORITY_LAST
, 0, 1);
3877 endp
= startp
= endp
+ 1;
3884 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3885 temp
= getenv ("LPATH");
3886 if (temp
&& *cross_compile
== '0')
3888 const char *startp
, *endp
;
3889 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3891 startp
= endp
= temp
;
3894 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3896 strncpy (nstore
, startp
, endp
- startp
);
3898 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3899 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3901 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3902 nstore
[endp
- startp
+ 1] = 0;
3905 nstore
[endp
- startp
] = 0;
3906 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3907 PREFIX_PRIORITY_LAST
, 0, 1);
3910 endp
= startp
= endp
+ 1;
3917 /* Process the options and store input files and switches in their
3920 last_language_n_infiles
= -1;
3922 set_option_handlers (&handlers
);
3924 for (j
= 1; j
< decoded_options_count
; j
++)
3926 switch (decoded_options
[j
].opt_index
)
3938 for (j
= 1; j
< decoded_options_count
; j
++)
3940 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
3942 const char *arg
= decoded_options
[j
].arg
;
3943 const char *p
= strrchr (arg
, '@');
3947 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3948 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
3950 /* For LTO static archive support we handle input file
3951 specifications that are composed of a filename and
3952 an offset like FNAME@OFFSET. */
3955 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
3956 && strlen (p
) == (unsigned int)consumed
)
3958 fname
= (char *)xmalloc (p
- arg
+ 1);
3959 memcpy (fname
, arg
, p
- arg
);
3960 fname
[p
- arg
] = '\0';
3961 /* Only accept non-stdin and existing FNAME parts, otherwise
3962 try with the full name. */
3963 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
3966 fname
= xstrdup (arg
);
3970 fname
= xstrdup (arg
);
3972 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
3973 perror_with_name (fname
);
3975 add_infile (arg
, spec_lang
);
3981 read_cmdline_option (&global_options
, &global_options_set
,
3982 decoded_options
+ j
, UNKNOWN_LOCATION
,
3983 CL_DRIVER
, &handlers
, global_dc
);
3986 /* If -save-temps=obj and -o name, create the prefix to use for %b.
3987 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
3988 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
3990 save_temps_length
= strlen (save_temps_prefix
);
3991 temp
= strrchr (lbasename (save_temps_prefix
), '.');
3994 save_temps_length
-= strlen (temp
);
3995 save_temps_prefix
[save_temps_length
] = '\0';
3999 else if (save_temps_prefix
!= NULL
)
4001 free (save_temps_prefix
);
4002 save_temps_prefix
= NULL
;
4005 if (save_temps_flag
&& use_pipes
)
4007 /* -save-temps overrides -pipe, so that temp files are produced */
4008 if (save_temps_flag
)
4009 warning (0, "-pipe ignored because -save-temps specified");
4015 const char *gcd
= getenv ("GCC_COMPARE_DEBUG");
4017 if (gcd
&& gcd
[0] == '-')
4020 compare_debug_opt
= gcd
;
4022 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
4025 compare_debug_opt
= "-gtoggle";
4028 else if (compare_debug
< 0)
4031 gcc_assert (!compare_debug_opt
);
4034 /* Set up the search paths. We add directories that we expect to
4035 contain GNU Toolchain components before directories specified by
4036 the machine description so that we will find GNU components (like
4037 the GNU assembler) before those of the host system. */
4039 /* If we don't know where the toolchain has been installed, use the
4040 configured-in locations. */
4041 if (!gcc_exec_prefix
)
4044 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4045 PREFIX_PRIORITY_LAST
, 1, 0);
4046 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4047 PREFIX_PRIORITY_LAST
, 2, 0);
4048 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4049 PREFIX_PRIORITY_LAST
, 2, 0);
4051 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4052 PREFIX_PRIORITY_LAST
, 1, 0);
4055 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4056 tooldir_prefix2
= concat (tooldir_base_prefix
, spec_machine
,
4057 dir_separator_str
, NULL
);
4059 /* Look for tools relative to the location from which the driver is
4060 running, or, if that is not available, the configured prefix. */
4062 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4063 spec_machine
, dir_separator_str
,
4064 spec_version
, dir_separator_str
, tooldir_prefix2
, NULL
);
4065 free (tooldir_prefix2
);
4067 add_prefix (&exec_prefixes
,
4068 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4069 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4070 add_prefix (&startfile_prefixes
,
4071 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4072 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4073 free (tooldir_prefix
);
4075 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4076 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4077 then consider it to relocate with the rest of the GCC installation
4078 if GCC_EXEC_PREFIX is set.
4079 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4080 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
4082 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4083 standard_bindir_prefix
,
4084 target_system_root
);
4085 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4087 target_system_root
= tmp_prefix
;
4088 target_system_root_changed
= 1;
4093 /* More prefixes are enabled in main, after we read the specs file
4094 and determine whether this is cross-compilation or not. */
4096 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4097 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
4099 /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG
4100 environment variable. */
4101 if (compare_debug
== 2 || compare_debug
== 3)
4103 const char *opt
= concat ("-fcompare-debug=", compare_debug_opt
, NULL
);
4104 save_switch (opt
, 0, NULL
, false, true);
4108 /* Ensure we only invoke each subprocess once. */
4109 if (print_subprocess_help
|| print_help_list
|| print_version
)
4113 /* Create a dummy input file, so that we can pass
4114 the help option on to the various sub-processes. */
4115 add_infile ("help-dummy", "c");
4119 switches
[n_switches
].part1
= 0;
4121 infiles
[n_infiles
].name
= 0;
4124 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4125 and place that in the environment. */
4128 set_collect_gcc_options (void)
4133 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4135 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4136 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4139 for (i
= 0; (int) i
< n_switches
; i
++)
4141 const char *const *args
;
4144 obstack_grow (&collect_obstack
, " ", 1);
4148 /* Ignore elided switches. */
4149 if ((switches
[i
].live_cond
4150 & (SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
))
4154 obstack_grow (&collect_obstack
, "'-", 2);
4155 q
= switches
[i
].part1
;
4156 while ((p
= strchr (q
, '\'')))
4158 obstack_grow (&collect_obstack
, q
, p
- q
);
4159 obstack_grow (&collect_obstack
, "'\\''", 4);
4162 obstack_grow (&collect_obstack
, q
, strlen (q
));
4163 obstack_grow (&collect_obstack
, "'", 1);
4165 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4167 obstack_grow (&collect_obstack
, " '", 2);
4169 while ((p
= strchr (q
, '\'')))
4171 obstack_grow (&collect_obstack
, q
, p
- q
);
4172 obstack_grow (&collect_obstack
, "'\\''", 4);
4175 obstack_grow (&collect_obstack
, q
, strlen (q
));
4176 obstack_grow (&collect_obstack
, "'", 1);
4179 obstack_grow (&collect_obstack
, "\0", 1);
4180 xputenv (XOBFINISH (&collect_obstack
, char *));
4183 /* Process a spec string, accumulating and running commands. */
4185 /* These variables describe the input file name.
4186 input_file_number is the index on outfiles of this file,
4187 so that the output file name can be stored for later use by %o.
4188 input_basename is the start of the part of the input file
4189 sans all directory names, and basename_length is the number
4190 of characters starting there excluding the suffix .c or whatever. */
4192 static const char *gcc_input_filename
;
4193 static int input_file_number
;
4194 size_t input_filename_length
;
4195 static int basename_length
;
4196 static int suffixed_basename_length
;
4197 static const char *input_basename
;
4198 static const char *input_suffix
;
4199 #ifndef HOST_LACKS_INODE_NUMBERS
4200 static struct stat input_stat
;
4202 static int input_stat_set
;
4204 /* The compiler used to process the current input file. */
4205 static struct compiler
*input_file_compiler
;
4207 /* These are variables used within do_spec and do_spec_1. */
4209 /* Nonzero if an arg has been started and not yet terminated
4210 (with space, tab or newline). */
4211 static int arg_going
;
4213 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4214 is a temporary file name. */
4215 static int delete_this_arg
;
4217 /* Nonzero means %w has been seen; the next arg to be terminated
4218 is the output file name of this compilation. */
4219 static int this_is_output_file
;
4221 /* Nonzero means %s has been seen; the next arg to be terminated
4222 is the name of a library file and we should try the standard
4223 search dirs for it. */
4224 static int this_is_library_file
;
4226 /* Nonzero means %T has been seen; the next arg to be terminated
4227 is the name of a linker script and we should try all of the
4228 standard search dirs for it. If it is found insert a --script
4229 command line switch and then substitute the full path in place,
4230 otherwise generate an error message. */
4231 static int this_is_linker_script
;
4233 /* Nonzero means that the input of this command is coming from a pipe. */
4234 static int input_from_pipe
;
4236 /* Nonnull means substitute this for any suffix when outputting a switches
4238 static const char *suffix_subst
;
4240 /* If there is an argument being accumulated, terminate it and store it. */
4243 end_going_arg (void)
4249 obstack_1grow (&obstack
, 0);
4250 string
= XOBFINISH (&obstack
, const char *);
4251 if (this_is_library_file
)
4252 string
= find_file (string
);
4253 if (this_is_linker_script
)
4255 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4257 if (full_script_path
== NULL
)
4259 error ("unable to locate default linker script %qs in the library search paths", string
);
4260 /* Script was not found on search path. */
4263 store_arg ("--script", false, false);
4264 string
= full_script_path
;
4266 store_arg (string
, delete_this_arg
, this_is_output_file
);
4267 if (this_is_output_file
)
4268 outfiles
[input_file_number
] = string
;
4274 /* Parse the WRAPPER string which is a comma separated list of the command line
4275 and insert them into the beginning of argbuf. */
4278 insert_wrapper (const char *wrapper
)
4282 char *buf
= xstrdup (wrapper
);
4284 unsigned int old_length
= argbuf
.length ();
4292 while ((p
= strchr (p
, ',')) != NULL
);
4294 argbuf
.safe_grow (old_length
+ n
);
4295 memmove (argbuf
.address () + n
,
4297 old_length
* sizeof (const_char_p
));
4311 while ((p
= strchr (p
, ',')) != NULL
);
4312 gcc_assert (i
== n
);
4315 /* Process the spec SPEC and run the commands specified therein.
4316 Returns 0 if the spec is successfully processed; -1 if failed. */
4319 do_spec (const char *spec
)
4323 value
= do_spec_2 (spec
);
4325 /* Force out any unfinished command.
4326 If -pipe, this forces out the last command if it ended in `|'. */
4329 if (argbuf
.length () > 0
4330 && !strcmp (argbuf
.last (), "|"))
4333 set_collect_gcc_options ();
4335 if (argbuf
.length () > 0)
4343 do_spec_2 (const char *spec
)
4349 delete_this_arg
= 0;
4350 this_is_output_file
= 0;
4351 this_is_library_file
= 0;
4352 this_is_linker_script
= 0;
4353 input_from_pipe
= 0;
4354 suffix_subst
= NULL
;
4356 result
= do_spec_1 (spec
, 0, NULL
);
4364 /* Process the given spec string and add any new options to the end
4365 of the switches/n_switches array. */
4368 do_option_spec (const char *name
, const char *spec
)
4370 unsigned int i
, value_count
, value_len
;
4371 const char *p
, *q
, *value
;
4372 char *tmp_spec
, *tmp_spec_p
;
4374 if (configure_default_options
[0].name
== NULL
)
4377 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4378 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4380 if (i
== ARRAY_SIZE (configure_default_options
))
4383 value
= configure_default_options
[i
].value
;
4384 value_len
= strlen (value
);
4386 /* Compute the size of the final spec. */
4389 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4395 /* Replace each %(VALUE) by the specified value. */
4396 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4397 + value_count
* (value_len
- strlen ("%(VALUE)")));
4398 tmp_spec_p
= tmp_spec
;
4400 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4402 memcpy (tmp_spec_p
, q
, p
- q
);
4403 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4404 memcpy (tmp_spec_p
, value
, value_len
);
4405 tmp_spec_p
+= value_len
;
4406 q
= p
+ strlen ("%(VALUE)");
4408 strcpy (tmp_spec_p
, q
);
4410 do_self_spec (tmp_spec
);
4413 /* Process the given spec string and add any new options to the end
4414 of the switches/n_switches array. */
4417 do_self_spec (const char *spec
)
4422 do_spec_1 (" ", 0, NULL
);
4424 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
4425 do_self_specs adds the replacements to switches array, so it shouldn't
4426 be processed afterwards. */
4427 for (i
= 0; i
< n_switches
; i
++)
4428 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
4429 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
4431 if (argbuf
.length () > 0)
4433 const char **argbuf_copy
;
4434 struct cl_decoded_option
*decoded_options
;
4435 struct cl_option_handlers handlers
;
4436 unsigned int decoded_options_count
;
4439 /* Create a copy of argbuf with a dummy argv[0] entry for
4440 decode_cmdline_options_to_array. */
4441 argbuf_copy
= XNEWVEC (const char *,
4442 argbuf
.length () + 1);
4443 argbuf_copy
[0] = "";
4444 memcpy (argbuf_copy
+ 1, argbuf
.address (),
4445 argbuf
.length () * sizeof (const char *));
4447 decode_cmdline_options_to_array (argbuf
.length () + 1,
4449 CL_DRIVER
, &decoded_options
,
4450 &decoded_options_count
);
4453 set_option_handlers (&handlers
);
4455 for (j
= 1; j
< decoded_options_count
; j
++)
4457 switch (decoded_options
[j
].opt_index
)
4459 case OPT_SPECIAL_input_file
:
4460 /* Specs should only generate options, not input
4462 if (strcmp (decoded_options
[j
].arg
, "-") != 0)
4463 fatal_error ("switch %qs does not start with %<-%>",
4464 decoded_options
[j
].arg
);
4466 fatal_error ("spec-generated switch is just %<-%>");
4469 case OPT_fcompare_debug_second
:
4470 case OPT_fcompare_debug
:
4471 case OPT_fcompare_debug_
:
4473 /* Avoid duplicate processing of some options from
4474 compare-debug specs; just save them here. */
4475 save_switch (decoded_options
[j
].canonical_option
[0],
4476 (decoded_options
[j
].canonical_option_num_elements
4478 &decoded_options
[j
].canonical_option
[1], false, true);
4482 read_cmdline_option (&global_options
, &global_options_set
,
4483 decoded_options
+ j
, UNKNOWN_LOCATION
,
4484 CL_DRIVER
, &handlers
, global_dc
);
4490 switches
[n_switches
].part1
= 0;
4494 /* Callback for processing %D and %I specs. */
4496 struct spec_path_info
{
4501 bool separate_options
;
4505 spec_path (char *path
, void *data
)
4507 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
4511 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4514 if (info
->append_len
!= 0)
4516 len
= strlen (path
);
4517 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4520 if (!is_directory (path
, true))
4523 do_spec_1 (info
->option
, 1, NULL
);
4524 if (info
->separate_options
)
4525 do_spec_1 (" ", 0, NULL
);
4527 if (info
->append_len
== 0)
4529 len
= strlen (path
);
4530 save
= path
[len
- 1];
4531 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4532 path
[len
- 1] = '\0';
4535 do_spec_1 (path
, 1, NULL
);
4536 do_spec_1 (" ", 0, NULL
);
4538 /* Must not damage the original path. */
4539 if (info
->append_len
== 0)
4540 path
[len
- 1] = save
;
4545 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
4549 create_at_file (char **argv
)
4551 char *temp_file
= make_temp_file ("");
4552 char *at_argument
= concat ("@", temp_file
, NULL
);
4553 FILE *f
= fopen (temp_file
, "w");
4557 fatal_error ("could not open temporary response file %s",
4560 status
= writeargv (argv
, f
);
4563 fatal_error ("could not write to temporary response file %s",
4566 status
= fclose (f
);
4569 fatal_error ("could not close temporary response file %s",
4572 store_arg (at_argument
, 0, 0);
4574 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
4577 /* True if we should compile INFILE. */
4580 compile_input_file_p (struct infile
*infile
)
4582 if ((!infile
->language
) || (infile
->language
[0] != '*'))
4583 if (infile
->incompiler
== input_file_compiler
)
4588 /* Process each member of VEC as a spec. */
4591 do_specs_vec (vec
<char_p
> vec
)
4596 FOR_EACH_VEC_ELT (vec
, ix
, opt
)
4598 do_spec_1 (opt
, 1, NULL
);
4599 /* Make each accumulated option a separate argument. */
4600 do_spec_1 (" ", 0, NULL
);
4604 /* Process the sub-spec SPEC as a portion of a larger spec.
4605 This is like processing a whole spec except that we do
4606 not initialize at the beginning and we do not supply a
4607 newline by default at the end.
4608 INSWITCH nonzero means don't process %-sequences in SPEC;
4609 in this case, % is treated as an ordinary character.
4610 This is used while substituting switches.
4611 INSWITCH nonzero also causes SPC not to terminate an argument.
4613 Value is zero unless a line was finished
4614 and the command on that line reported an error. */
4617 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4619 const char *p
= spec
;
4624 /* If it's an empty string argument to a switch, keep it as is. */
4625 if (inswitch
&& !*p
)
4629 /* If substituting a switch, treat all chars like letters.
4630 Otherwise, NL, SPC, TAB and % are special. */
4631 switch (inswitch
? 'a' : c
)
4636 if (argbuf
.length () > 0
4637 && !strcmp (argbuf
.last (), "|"))
4639 /* A `|' before the newline means use a pipe here,
4640 but only if -pipe was specified.
4641 Otherwise, execute now and don't pass the `|' as an arg. */
4644 input_from_pipe
= 1;
4651 set_collect_gcc_options ();
4653 if (argbuf
.length () > 0)
4659 /* Reinitialize for a new command, and for a new argument. */
4662 delete_this_arg
= 0;
4663 this_is_output_file
= 0;
4664 this_is_library_file
= 0;
4665 this_is_linker_script
= 0;
4666 input_from_pipe
= 0;
4673 obstack_1grow (&obstack
, c
);
4681 /* Reinitialize for a new argument. */
4682 delete_this_arg
= 0;
4683 this_is_output_file
= 0;
4684 this_is_library_file
= 0;
4685 this_is_linker_script
= 0;
4692 fatal_error ("spec %qs invalid", spec
);
4695 if (save_temps_length
)
4696 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4698 obstack_grow (&obstack
, input_basename
, basename_length
);
4699 if (compare_debug
< 0)
4700 obstack_grow (&obstack
, ".gk", 3);
4705 if (save_temps_length
)
4706 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4708 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4709 if (compare_debug
< 0)
4710 obstack_grow (&obstack
, ".gk", 3);
4715 delete_this_arg
= 2;
4718 /* Dump out the directories specified with LIBRARY_PATH,
4719 followed by the absolute directories
4720 that we search for startfiles. */
4723 struct spec_path_info info
;
4726 info
.append_len
= 0;
4727 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4728 /* Used on systems which record the specified -L dirs
4729 and use them to search for dynamic linking.
4730 Relative directories always come from -B,
4731 and it is better not to use them for searching
4732 at run time. In particular, stage1 loses. */
4733 info
.omit_relative
= true;
4735 info
.omit_relative
= false;
4737 info
.separate_options
= false;
4739 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
4744 /* %efoo means report an error with `foo' as error message
4745 and don't execute any more commands for this file. */
4749 while (*p
!= 0 && *p
!= '\n')
4751 buf
= (char *) alloca (p
- q
+ 1);
4752 strncpy (buf
, q
, p
- q
);
4754 error ("%s", _(buf
));
4759 /* %nfoo means report a notice with `foo' on stderr. */
4763 while (*p
!= 0 && *p
!= '\n')
4765 buf
= (char *) alloca (p
- q
+ 1);
4766 strncpy (buf
, q
, p
- q
);
4768 inform (0, "%s", _(buf
));
4778 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4779 defined, and it is not a directory, and it is
4780 writable, use it. Otherwise, treat this like any
4781 other temporary file. */
4783 if ((!save_temps_flag
)
4784 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4785 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4787 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4788 strlen (HOST_BIT_BUCKET
));
4789 delete_this_arg
= 0;
4794 goto create_temp_file
;
4798 obstack_1grow (&obstack
, '-');
4799 delete_this_arg
= 0;
4802 /* consume suffix */
4803 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4805 if (p
[0] == '%' && p
[1] == 'O')
4810 goto create_temp_file
;
4814 /* consume suffix */
4815 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4817 if (p
[0] == '%' && p
[1] == 'O')
4822 goto create_temp_file
;
4828 struct temp_name
*t
;
4830 const char *suffix
= p
;
4831 char *saved_suffix
= NULL
;
4833 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4835 suffix_length
= p
- suffix
;
4836 if (p
[0] == '%' && p
[1] == 'O')
4839 /* We don't support extra suffix characters after %O. */
4840 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
4841 fatal_error ("spec %qs has invalid %<%%0%c%>", spec
, *p
);
4842 if (suffix_length
== 0)
4843 suffix
= TARGET_OBJECT_SUFFIX
;
4847 = XNEWVEC (char, suffix_length
4848 + strlen (TARGET_OBJECT_SUFFIX
));
4849 strncpy (saved_suffix
, suffix
, suffix_length
);
4850 strcpy (saved_suffix
+ suffix_length
,
4851 TARGET_OBJECT_SUFFIX
);
4853 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4856 if (compare_debug
< 0)
4858 suffix
= concat (".gk", suffix
, NULL
);
4862 /* If -save-temps=obj and -o were specified, use that for the
4864 if (save_temps_length
)
4867 temp_filename_length
4868 = save_temps_length
+ suffix_length
+ 1;
4869 tmp
= (char *) alloca (temp_filename_length
);
4870 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
4871 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
4872 tmp
[save_temps_length
+ suffix_length
] = '\0';
4873 temp_filename
= save_string (tmp
, save_temps_length
4875 obstack_grow (&obstack
, temp_filename
,
4876 temp_filename_length
);
4878 delete_this_arg
= 0;
4882 /* If the gcc_input_filename has the same suffix specified
4883 for the %g, %u, or %U, and -save-temps is specified,
4884 we could end up using that file as an intermediate
4885 thus clobbering the user's source file (.e.g.,
4886 gcc -save-temps foo.s would clobber foo.s with the
4887 output of cpp0). So check for this condition and
4888 generate a temp file as the intermediate. */
4890 if (save_temps_flag
)
4893 temp_filename_length
= basename_length
+ suffix_length
+ 1;
4894 tmp
= (char *) alloca (temp_filename_length
);
4895 memcpy (tmp
, input_basename
, basename_length
);
4896 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
4897 tmp
[basename_length
+ suffix_length
] = '\0';
4898 temp_filename
= tmp
;
4900 if (filename_cmp (temp_filename
, gcc_input_filename
) != 0)
4902 #ifndef HOST_LACKS_INODE_NUMBERS
4903 struct stat st_temp
;
4905 /* Note, set_input() resets input_stat_set to 0. */
4906 if (input_stat_set
== 0)
4908 input_stat_set
= stat (gcc_input_filename
,
4910 if (input_stat_set
>= 0)
4914 /* If we have the stat for the gcc_input_filename
4915 and we can do the stat for the temp_filename
4916 then the they could still refer to the same
4917 file if st_dev/st_ino's are the same. */
4918 if (input_stat_set
!= 1
4919 || stat (temp_filename
, &st_temp
) < 0
4920 || input_stat
.st_dev
!= st_temp
.st_dev
4921 || input_stat
.st_ino
!= st_temp
.st_ino
)
4923 /* Just compare canonical pathnames. */
4924 char* input_realname
= lrealpath (gcc_input_filename
);
4925 char* temp_realname
= lrealpath (temp_filename
);
4926 bool files_differ
= filename_cmp (input_realname
, temp_realname
);
4927 free (input_realname
);
4928 free (temp_realname
);
4932 temp_filename
= save_string (temp_filename
,
4933 temp_filename_length
+ 1);
4934 obstack_grow (&obstack
, temp_filename
,
4935 temp_filename_length
);
4937 delete_this_arg
= 0;
4943 /* See if we already have an association of %g/%u/%U and
4945 for (t
= temp_names
; t
; t
= t
->next
)
4946 if (t
->length
== suffix_length
4947 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4948 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4951 /* Make a new association if needed. %u and %j
4953 if (t
== 0 || c
== 'u' || c
== 'j')
4957 t
= XNEW (struct temp_name
);
4958 t
->next
= temp_names
;
4961 t
->length
= suffix_length
;
4964 t
->suffix
= saved_suffix
;
4965 saved_suffix
= NULL
;
4968 t
->suffix
= save_string (suffix
, suffix_length
);
4969 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4970 temp_filename
= make_temp_file (t
->suffix
);
4971 temp_filename_length
= strlen (temp_filename
);
4972 t
->filename
= temp_filename
;
4973 t
->filename_length
= temp_filename_length
;
4976 free (saved_suffix
);
4978 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4979 delete_this_arg
= 1;
4987 if (at_file_supplied
)
4989 /* We are going to expand `%i' to `@FILE', where FILE
4990 is a newly-created temporary filename. The filenames
4991 that would usually be expanded in place of %o will be
4992 written to the temporary file. */
4997 for (i
= 0; i
< n_infiles
; i
++)
4998 if (compile_input_file_p (&infiles
[i
]))
5001 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5003 /* Copy the strings over. */
5004 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
5005 if (compile_input_file_p (&infiles
[i
]))
5007 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
5008 infiles
[i
].compiled
= true;
5013 create_at_file (argv
);
5016 for (i
= 0; (int) i
< n_infiles
; i
++)
5017 if (compile_input_file_p (&infiles
[i
]))
5019 store_arg (infiles
[i
].name
, 0, 0);
5020 infiles
[i
].compiled
= true;
5025 obstack_grow (&obstack
, gcc_input_filename
,
5026 input_filename_length
);
5033 struct spec_path_info info
;
5037 do_spec_1 ("-imultilib", 1, NULL
);
5038 /* Make this a separate argument. */
5039 do_spec_1 (" ", 0, NULL
);
5040 do_spec_1 (multilib_dir
, 1, NULL
);
5041 do_spec_1 (" ", 0, NULL
);
5046 do_spec_1 ("-imultiarch", 1, NULL
);
5047 /* Make this a separate argument. */
5048 do_spec_1 (" ", 0, NULL
);
5049 do_spec_1 (multiarch_dir
, 1, NULL
);
5050 do_spec_1 (" ", 0, NULL
);
5053 if (gcc_exec_prefix
)
5055 do_spec_1 ("-iprefix", 1, NULL
);
5056 /* Make this a separate argument. */
5057 do_spec_1 (" ", 0, NULL
);
5058 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5059 do_spec_1 (" ", 0, NULL
);
5062 if (target_system_root_changed
||
5063 (target_system_root
&& target_sysroot_hdrs_suffix
))
5065 do_spec_1 ("-isysroot", 1, NULL
);
5066 /* Make this a separate argument. */
5067 do_spec_1 (" ", 0, NULL
);
5068 do_spec_1 (target_system_root
, 1, NULL
);
5069 if (target_sysroot_hdrs_suffix
)
5070 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5071 do_spec_1 (" ", 0, NULL
);
5074 info
.option
= "-isystem";
5075 info
.append
= "include";
5076 info
.append_len
= strlen (info
.append
);
5077 info
.omit_relative
= false;
5078 info
.separate_options
= true;
5080 for_each_path (&include_prefixes
, false, info
.append_len
,
5083 info
.append
= "include-fixed";
5084 if (*sysroot_hdrs_suffix_spec
)
5085 info
.append
= concat (info
.append
, dir_separator_str
,
5086 multilib_dir
, NULL
);
5087 info
.append_len
= strlen (info
.append
);
5088 for_each_path (&include_prefixes
, false, info
.append_len
,
5095 int max
= n_infiles
;
5096 max
+= lang_specific_extra_outfiles
;
5098 if (HAVE_GNU_LD
&& at_file_supplied
)
5100 /* We are going to expand `%o' to `@FILE', where FILE
5101 is a newly-created temporary filename. The filenames
5102 that would usually be expanded in place of %o will be
5103 written to the temporary file. */
5108 /* Convert OUTFILES into a form suitable for writeargv. */
5110 /* Determine how many are non-NULL. */
5111 for (n_files
= 0, i
= 0; i
< max
; i
++)
5112 n_files
+= outfiles
[i
] != NULL
;
5114 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5116 /* Copy the strings over. */
5117 for (i
= 0, j
= 0; i
< max
; i
++)
5120 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5125 create_at_file (argv
);
5128 for (i
= 0; i
< max
; i
++)
5130 store_arg (outfiles
[i
], 0, 0);
5135 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5140 this_is_library_file
= 1;
5144 this_is_linker_script
= 1;
5148 outfiles
[input_file_number
] = NULL
;
5152 this_is_output_file
= 1;
5157 unsigned int cur_index
= argbuf
.length ();
5158 /* Handle the {...} following the %W. */
5160 fatal_error ("spec %qs has invalid %<%%W%c%>", spec
, *p
);
5161 p
= handle_braces (p
+ 1);
5165 /* If any args were output, mark the last one for deletion
5167 if (argbuf
.length () != cur_index
)
5168 record_temp_file (argbuf
.last (), 0, 1);
5172 /* %x{OPTION} records OPTION for %X to output. */
5180 /* Skip past the option value and make a copy. */
5182 fatal_error ("spec %qs has invalid %<%%x%c%>", spec
, *p
);
5185 string
= save_string (p1
+ 1, p
- p1
- 2);
5187 /* See if we already recorded this option. */
5188 FOR_EACH_VEC_ELT (linker_options
, ix
, opt
)
5189 if (! strcmp (string
, opt
))
5195 /* This option is new; add it. */
5196 add_linker_option (string
, strlen (string
));
5201 /* Dump out the options accumulated previously using %x. */
5203 do_specs_vec (linker_options
);
5206 /* Dump out the options accumulated previously using -Wa,. */
5208 do_specs_vec (assembler_options
);
5211 /* Dump out the options accumulated previously using -Wp,. */
5213 do_specs_vec (preprocessor_options
);
5216 /* Here are digits and numbers that just process
5217 a certain constant string as a spec. */
5220 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5226 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5232 value
= do_spec_1 (asm_spec
, 0, NULL
);
5238 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5245 const char *const spec
5246 = (input_file_compiler
->cpp_spec
5247 ? input_file_compiler
->cpp_spec
5249 value
= do_spec_1 (spec
, 0, NULL
);
5256 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5262 value
= do_spec_1 (link_spec
, 0, NULL
);
5268 value
= do_spec_1 (lib_spec
, 0, NULL
);
5274 if (multilib_os_dir
== NULL
)
5275 obstack_1grow (&obstack
, '.');
5277 obstack_grow (&obstack
, multilib_os_dir
,
5278 strlen (multilib_os_dir
));
5282 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5288 /* We assume there is a directory
5289 separator at the end of this string. */
5290 if (target_system_root
)
5292 obstack_grow (&obstack
, target_system_root
,
5293 strlen (target_system_root
));
5294 if (target_sysroot_suffix
)
5295 obstack_grow (&obstack
, target_sysroot_suffix
,
5296 strlen (target_sysroot_suffix
));
5301 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5306 /* Here we define characters other than letters and digits. */
5309 p
= handle_braces (p
);
5315 p
= handle_spec_function (p
, NULL
);
5321 obstack_1grow (&obstack
, '%');
5328 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5330 suffix_subst
= save_string (p
- 1, len
+ 1);
5335 /* Henceforth ignore the option(s) matching the pattern
5341 int have_wildcard
= 0;
5346 switch_option
= SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
;
5348 switch_option
= SWITCH_IGNORE
;
5350 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5353 if (p
[len
-1] == '*')
5356 for (i
= 0; i
< n_switches
; i
++)
5357 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5358 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5360 switches
[i
].live_cond
|= switch_option
;
5361 /* User switch be validated from validate_all_switches.
5362 when the definition is seen from the spec file.
5363 If not defined anywhere, will be rejected. */
5364 if (switches
[i
].known
)
5365 switches
[i
].validated
= true;
5373 if (soft_matched_part
)
5375 if (soft_matched_part
[0])
5376 do_spec_1 (soft_matched_part
, 1, NULL
);
5377 /* Only insert a space after the substitution if it is at the
5378 end of the current sequence. So if:
5380 "%{foo=*:bar%*}%{foo=*:one%*two}"
5382 matches -foo=hello then it will produce:
5384 barhello onehellotwo
5386 if (*p
== 0 || *p
== '}')
5387 do_spec_1 (" ", 0, NULL
);
5390 /* Catch the case where a spec string contains something like
5391 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5392 hand side of the :. */
5393 error ("spec failure: %<%%*%> has not been initialized by pattern match");
5396 /* Process a string found as the value of a spec given by name.
5397 This feature allows individual machine descriptions
5398 to add and use their own specs. */
5401 const char *name
= p
;
5402 struct spec_list
*sl
;
5405 /* The string after the S/P is the name of a spec that is to be
5407 while (*p
&& *p
!= ')')
5410 /* See if it's in the list. */
5411 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5412 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5414 name
= *(sl
->ptr_spec
);
5416 fnotice (stderr
, "Processing spec (%s), which is '%s'\n",
5424 value
= do_spec_1 (name
, 0, NULL
);
5429 /* Discard the closing paren. */
5436 error ("spec failure: unrecognized spec option %qc", c
);
5442 /* Backslash: treat next character as ordinary. */
5447 /* Ordinary character: put it into the current argument. */
5448 obstack_1grow (&obstack
, c
);
5452 /* End of string. If we are processing a spec function, we need to
5453 end any pending argument. */
5454 if (processing_spec_function
)
5460 /* Look up a spec function. */
5462 static const struct spec_function
*
5463 lookup_spec_function (const char *name
)
5465 const struct spec_function
*sf
;
5467 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5468 if (strcmp (sf
->name
, name
) == 0)
5474 /* Evaluate a spec function. */
5477 eval_spec_function (const char *func
, const char *args
)
5479 const struct spec_function
*sf
;
5480 const char *funcval
;
5482 /* Saved spec processing context. */
5483 vec
<const_char_p
> save_argbuf
;
5486 int save_delete_this_arg
;
5487 int save_this_is_output_file
;
5488 int save_this_is_library_file
;
5489 int save_input_from_pipe
;
5490 int save_this_is_linker_script
;
5491 const char *save_suffix_subst
;
5493 int save_growing_size
;
5494 void *save_growing_value
;
5496 sf
= lookup_spec_function (func
);
5498 fatal_error ("unknown spec function %qs", func
);
5500 /* Push the spec processing context. */
5501 save_argbuf
= argbuf
;
5503 save_arg_going
= arg_going
;
5504 save_delete_this_arg
= delete_this_arg
;
5505 save_this_is_output_file
= this_is_output_file
;
5506 save_this_is_library_file
= this_is_library_file
;
5507 save_this_is_linker_script
= this_is_linker_script
;
5508 save_input_from_pipe
= input_from_pipe
;
5509 save_suffix_subst
= suffix_subst
;
5511 /* If we have some object growing now, finalize it so the args and function
5512 eval proceed from a cleared context. This is needed to prevent the first
5513 constructed arg from mistakenly including the growing value. We'll push
5514 this value back on the obstack once the function evaluation is done, to
5515 restore a consistent processing context for our caller. This is fine as
5516 the address of growing objects isn't guaranteed to remain stable until
5517 they are finalized, and we expect this situation to be rare enough for
5518 the extra copy not to be an issue. */
5519 save_growing_size
= obstack_object_size (&obstack
);
5520 if (save_growing_size
> 0)
5521 save_growing_value
= obstack_finish (&obstack
);
5523 /* Create a new spec processing context, and build the function
5527 if (do_spec_2 (args
) < 0)
5528 fatal_error ("error in args to spec function %qs", func
);
5530 /* argbuf_index is an index for the next argument to be inserted, and
5531 so contains the count of the args already inserted. */
5533 funcval
= (*sf
->func
) (argbuf
.length (),
5536 /* Pop the spec processing context. */
5538 argbuf
= save_argbuf
;
5540 arg_going
= save_arg_going
;
5541 delete_this_arg
= save_delete_this_arg
;
5542 this_is_output_file
= save_this_is_output_file
;
5543 this_is_library_file
= save_this_is_library_file
;
5544 this_is_linker_script
= save_this_is_linker_script
;
5545 input_from_pipe
= save_input_from_pipe
;
5546 suffix_subst
= save_suffix_subst
;
5548 if (save_growing_size
> 0)
5549 obstack_grow (&obstack
, save_growing_value
, save_growing_size
);
5554 /* Handle a spec function call of the form:
5558 ARGS is processed as a spec in a separate context and split into an
5559 argument vector in the normal fashion. The function returns a string
5560 containing a spec which we then process in the caller's context, or
5561 NULL if no processing is required.
5563 If RETVAL_NONNULL is not NULL, then store a bool whether function
5564 returned non-NULL. */
5567 handle_spec_function (const char *p
, bool *retval_nonnull
)
5570 const char *endp
, *funcval
;
5573 processing_spec_function
++;
5575 /* Get the function name. */
5576 for (endp
= p
; *endp
!= '\0'; endp
++)
5578 if (*endp
== '(') /* ) */
5580 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5581 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5582 fatal_error ("malformed spec function name");
5584 if (*endp
!= '(') /* ) */
5585 fatal_error ("no arguments for spec function");
5586 func
= save_string (p
, endp
- p
);
5589 /* Get the arguments. */
5590 for (count
= 0; *endp
!= '\0'; endp
++)
5599 else if (*endp
== '(') /* ) */
5604 fatal_error ("malformed spec function arguments");
5605 args
= save_string (p
, endp
- p
);
5608 /* p now points to just past the end of the spec function expression. */
5610 funcval
= eval_spec_function (func
, args
);
5611 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5614 *retval_nonnull
= funcval
!= NULL
;
5619 processing_spec_function
--;
5624 /* Inline subroutine of handle_braces. Returns true if the current
5625 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5627 input_suffix_matches (const char *atom
, const char *end_atom
)
5629 return (input_suffix
5630 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5631 && input_suffix
[end_atom
- atom
] == '\0');
5634 /* Subroutine of handle_braces. Returns true if the current
5635 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
5637 input_spec_matches (const char *atom
, const char *end_atom
)
5639 return (input_file_compiler
5640 && input_file_compiler
->suffix
5641 && input_file_compiler
->suffix
[0] != '\0'
5642 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
5644 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
5647 /* Subroutine of handle_braces. Returns true if a switch
5648 matching the atom bracketed by ATOM and END_ATOM appeared on the
5651 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5654 int len
= end_atom
- atom
;
5655 int plen
= starred
? len
: -1;
5657 for (i
= 0; i
< n_switches
; i
++)
5658 if (!strncmp (switches
[i
].part1
, atom
, len
)
5659 && (starred
|| switches
[i
].part1
[len
] == '\0')
5660 && check_live_switch (i
, plen
))
5663 /* Check if a switch with separated form matching the atom.
5664 We check -D and -U switches. */
5665 else if (switches
[i
].args
!= 0)
5667 if ((*switches
[i
].part1
== 'D' || *switches
[i
].part1
== 'U')
5668 && *switches
[i
].part1
== atom
[0])
5670 if (!strncmp (switches
[i
].args
[0], &atom
[1], len
- 1)
5671 && (starred
|| (switches
[i
].part1
[1] == '\0'
5672 && switches
[i
].args
[0][len
- 1] == '\0'))
5673 && check_live_switch (i
, (starred
? 1 : -1)))
5681 /* Inline subroutine of handle_braces. Mark all of the switches which
5682 match ATOM (extends to END_ATOM; STARRED indicates whether there
5683 was a star after the atom) for later processing. */
5685 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5688 int len
= end_atom
- atom
;
5689 int plen
= starred
? len
: -1;
5691 for (i
= 0; i
< n_switches
; i
++)
5692 if (!strncmp (switches
[i
].part1
, atom
, len
)
5693 && (starred
|| switches
[i
].part1
[len
] == '\0')
5694 && check_live_switch (i
, plen
))
5695 switches
[i
].ordering
= 1;
5698 /* Inline subroutine of handle_braces. Process all the currently
5699 marked switches through give_switch, and clear the marks. */
5701 process_marked_switches (void)
5705 for (i
= 0; i
< n_switches
; i
++)
5706 if (switches
[i
].ordering
== 1)
5708 switches
[i
].ordering
= 0;
5713 /* Handle a %{ ... } construct. P points just inside the leading {.
5714 Returns a pointer one past the end of the brace block, or 0
5715 if we call do_spec_1 and that returns -1. */
5718 handle_braces (const char *p
)
5720 const char *atom
, *end_atom
;
5721 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5722 const char *orig
= p
;
5730 bool a_must_be_last
= false;
5731 bool ordered_set
= false;
5732 bool disjunct_set
= false;
5733 bool disj_matched
= false;
5734 bool disj_starred
= true;
5735 bool n_way_choice
= false;
5736 bool n_way_matched
= false;
5738 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5745 /* Scan one "atom" (S in the description above of %{}, possibly
5746 with '!', '.', '@', ',', or '*' modifiers). */
5748 a_is_suffix
= false;
5749 a_is_starred
= false;
5750 a_is_negated
= false;
5751 a_is_spectype
= false;
5755 p
++, a_is_negated
= true;
5758 if (*p
== '%' && p
[1] == ':')
5762 p
= handle_spec_function (p
+ 2, &a_matched
);
5767 p
++, a_is_suffix
= true;
5769 p
++, a_is_spectype
= true;
5772 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
5773 || *p
== ',' || *p
== '.' || *p
== '@')
5778 p
++, a_is_starred
= 1;
5785 /* Substitute the switch(es) indicated by the current atom. */
5787 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5788 || a_is_spectype
|| atom
== end_atom
)
5791 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5794 process_marked_switches ();
5798 /* Substitute some text if the current atom appears as a switch
5800 disjunct_set
= true;
5804 if (atom
&& atom
== end_atom
)
5806 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5807 || a_is_negated
|| a_is_suffix
|| a_is_spectype
5811 /* An empty term may appear as the last choice of an
5812 N-way choice set; it means "otherwise". */
5813 a_must_be_last
= true;
5814 disj_matched
= !n_way_matched
;
5815 disj_starred
= false;
5819 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
5823 disj_starred
= false;
5825 /* Don't bother testing this atom if we already have a
5827 if (!disj_matched
&& !n_way_matched
)
5830 /* a_matched is already set by handle_spec_function. */;
5831 else if (a_is_suffix
)
5832 a_matched
= input_suffix_matches (atom
, end_atom
);
5833 else if (a_is_spectype
)
5834 a_matched
= input_spec_matches (atom
, end_atom
);
5836 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5838 if (a_matched
!= a_is_negated
)
5840 disj_matched
= true;
5842 d_end_atom
= end_atom
;
5849 /* Found the body, that is, the text to substitute if the
5850 current disjunction matches. */
5851 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5852 disj_matched
&& !n_way_matched
);
5856 /* If we have an N-way choice, reset state for the next
5860 n_way_choice
= true;
5861 n_way_matched
|= disj_matched
;
5862 disj_matched
= false;
5863 disj_starred
= true;
5864 d_atom
= d_end_atom
= NULL
;
5873 while (*p
++ != '}');
5878 fatal_error ("braced spec %qs is invalid at %qc", orig
, *p
);
5883 /* Subroutine of handle_braces. Scan and process a brace substitution body
5884 (X in the description of %{} syntax). P points one past the colon;
5885 ATOM and END_ATOM bracket the first atom which was found to be true
5886 (present) in the current disjunction; STARRED indicates whether all
5887 the atoms in the current disjunction were starred (for syntax validation);
5888 MATCHED indicates whether the disjunction matched or not, and therefore
5889 whether or not the body is to be processed through do_spec_1 or just
5890 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5894 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5895 int starred
, int matched
)
5897 const char *body
, *end_body
;
5898 unsigned int nesting_level
;
5899 bool have_subst
= false;
5901 /* Locate the closing } or ;, honoring nested braces.
5902 Trim trailing whitespace. */
5911 if (!--nesting_level
)
5914 else if (*p
== ';' && nesting_level
== 1)
5916 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5918 else if (*p
== '\0')
5924 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5927 if (have_subst
&& !starred
)
5932 /* Copy the substitution body to permanent storage and execute it.
5933 If have_subst is false, this is a simple matter of running the
5934 body through do_spec_1... */
5935 char *string
= save_string (body
, end_body
- body
);
5938 if (do_spec_1 (string
, 0, NULL
) < 0)
5943 /* ... but if have_subst is true, we have to process the
5944 body once for each matching switch, with %* set to the
5945 variant part of the switch. */
5946 unsigned int hard_match_len
= end_atom
- atom
;
5949 for (i
= 0; i
< n_switches
; i
++)
5950 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5951 && check_live_switch (i
, hard_match_len
))
5953 if (do_spec_1 (string
, 0,
5954 &switches
[i
].part1
[hard_match_len
]) < 0)
5956 /* Pass any arguments this switch has. */
5958 suffix_subst
= NULL
;
5966 fatal_error ("braced spec body %qs is invalid", body
);
5969 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5970 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5971 spec, or -1 if either exact match or %* is used.
5973 A -O switch is obsoleted by a later -O switch. A -f, -g, -m, or -W switch
5974 whose value does not begin with "no-" is obsoleted by the same value
5975 with the "no-", similarly for a switch with the "no-" prefix. */
5978 check_live_switch (int switchnum
, int prefix_length
)
5980 const char *name
= switches
[switchnum
].part1
;
5983 /* If we already processed this switch and determined if it was
5984 live or not, return our past determination. */
5985 if (switches
[switchnum
].live_cond
!= 0)
5986 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
5987 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
5988 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
5991 /* In the common case of {<at-most-one-letter>*}, a negating
5992 switch would always match, so ignore that case. We will just
5993 send the conflicting switches to the compiler phase. */
5994 if (prefix_length
>= 0 && prefix_length
<= 1)
5997 /* Now search for duplicate in a manner that depends on the name. */
6001 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6002 if (switches
[i
].part1
[0] == 'O')
6004 switches
[switchnum
].validated
= true;
6005 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6010 case 'W': case 'f': case 'm': case 'g':
6011 if (! strncmp (name
+ 1, "no-", 3))
6013 /* We have Xno-YYY, search for XYYY. */
6014 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6015 if (switches
[i
].part1
[0] == name
[0]
6016 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6018 /* --specs are validated with the validate_switches mechanism. */
6019 if (switches
[switchnum
].known
)
6020 switches
[switchnum
].validated
= true;
6021 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6027 /* We have XYYY, search for Xno-YYY. */
6028 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6029 if (switches
[i
].part1
[0] == name
[0]
6030 && switches
[i
].part1
[1] == 'n'
6031 && switches
[i
].part1
[2] == 'o'
6032 && switches
[i
].part1
[3] == '-'
6033 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6035 /* --specs are validated with the validate_switches mechanism. */
6036 if (switches
[switchnum
].known
)
6037 switches
[switchnum
].validated
= true;
6038 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6045 /* Otherwise the switch is live. */
6046 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6050 /* Pass a switch to the current accumulating command
6051 in the same form that we received it.
6052 SWITCHNUM identifies the switch; it is an index into
6053 the vector of switches gcc received, which is `switches'.
6054 This cannot fail since it never finishes a command line.
6056 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6059 give_switch (int switchnum
, int omit_first_word
)
6061 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6064 if (!omit_first_word
)
6066 do_spec_1 ("-", 0, NULL
);
6067 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6070 if (switches
[switchnum
].args
!= 0)
6073 for (p
= switches
[switchnum
].args
; *p
; p
++)
6075 const char *arg
= *p
;
6077 do_spec_1 (" ", 0, NULL
);
6080 unsigned length
= strlen (arg
);
6083 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6084 if (arg
[length
] == '.')
6086 (CONST_CAST (char *, arg
))[length
] = 0;
6090 do_spec_1 (arg
, 1, NULL
);
6092 (CONST_CAST (char *, arg
))[length
] = '.';
6093 do_spec_1 (suffix_subst
, 1, NULL
);
6096 do_spec_1 (arg
, 1, NULL
);
6100 do_spec_1 (" ", 0, NULL
);
6101 switches
[switchnum
].validated
= true;
6104 /* Search for a file named NAME trying various prefixes including the
6105 user's -B prefix and some standard ones.
6106 Return the absolute file name found. If nothing is found, return NAME. */
6109 find_file (const char *name
)
6111 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
6112 return newname
? newname
: name
;
6115 /* Determine whether a directory exists. If LINKER, return 0 for
6116 certain fixed names not needed by the linker. */
6119 is_directory (const char *path1
, bool linker
)
6126 /* Ensure the string ends with "/.". The resulting path will be a
6127 directory even if the given path is a symbolic link. */
6128 len1
= strlen (path1
);
6129 path
= (char *) alloca (3 + len1
);
6130 memcpy (path
, path1
, len1
);
6132 if (!IS_DIR_SEPARATOR (cp
[-1]))
6133 *cp
++ = DIR_SEPARATOR
;
6137 /* Exclude directories that the linker is known to search. */
6139 && IS_DIR_SEPARATOR (path
[0])
6141 && filename_ncmp (path
+ 1, "lib", 3) == 0)
6143 && filename_ncmp (path
+ 1, "usr", 3) == 0
6144 && IS_DIR_SEPARATOR (path
[4])
6145 && filename_ncmp (path
+ 5, "lib", 3) == 0)))
6148 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6151 /* Set up the various global variables to indicate that we're processing
6152 the input file named FILENAME. */
6155 set_input (const char *filename
)
6159 gcc_input_filename
= filename
;
6160 input_filename_length
= strlen (gcc_input_filename
);
6161 input_basename
= lbasename (gcc_input_filename
);
6163 /* Find a suffix starting with the last period,
6164 and set basename_length to exclude that suffix. */
6165 basename_length
= strlen (input_basename
);
6166 suffixed_basename_length
= basename_length
;
6167 p
= input_basename
+ basename_length
;
6168 while (p
!= input_basename
&& *p
!= '.')
6170 if (*p
== '.' && p
!= input_basename
)
6172 basename_length
= p
- input_basename
;
6173 input_suffix
= p
+ 1;
6178 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6179 we will need to do a stat on the gcc_input_filename. The
6180 INPUT_STAT_SET signals that the stat is needed. */
6184 /* On fatal signals, delete all the temporary files. */
6187 fatal_signal (int signum
)
6189 signal (signum
, SIG_DFL
);
6190 delete_failure_queue ();
6191 delete_temp_files ();
6192 /* Get the same signal again, this time not handled,
6193 so its normal effect occurs. */
6194 kill (getpid (), signum
);
6197 /* Compare the contents of the two files named CMPFILE[0] and
6198 CMPFILE[1]. Return zero if they're identical, nonzero
6202 compare_files (char *cmpfile
[])
6205 FILE *temp
[2] = { NULL
, NULL
};
6211 void *map
[2] = { NULL
, NULL
};
6213 for (i
= 0; i
< 2; i
++)
6217 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
6219 error ("%s: could not determine length of compare-debug file %s",
6220 gcc_input_filename
, cmpfile
[i
]);
6225 length
[i
] = st
.st_size
;
6228 if (!ret
&& length
[0] != length
[1])
6230 error ("%s: -fcompare-debug failure (length)", gcc_input_filename
);
6235 for (i
= 0; i
< 2; i
++)
6237 int fd
= open (cmpfile
[i
], O_RDONLY
);
6240 error ("%s: could not open compare-debug file %s",
6241 gcc_input_filename
, cmpfile
[i
]);
6246 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
6249 if (map
[i
] == (void *) MAP_FAILED
)
6258 if (memcmp (map
[0], map
[1], length
[0]) != 0)
6260 error ("%s: -fcompare-debug failure", gcc_input_filename
);
6265 for (i
= 0; i
< 2; i
++)
6267 munmap ((caddr_t
) map
[i
], length
[i
]);
6276 for (i
= 0; i
< 2; i
++)
6278 temp
[i
] = fopen (cmpfile
[i
], "r");
6281 error ("%s: could not open compare-debug file %s",
6282 gcc_input_filename
, cmpfile
[i
]);
6288 if (!ret
&& temp
[0] && temp
[1])
6292 c0
= fgetc (temp
[0]);
6293 c1
= fgetc (temp
[1]);
6297 error ("%s: -fcompare-debug failure",
6298 gcc_input_filename
);
6307 for (i
= 1; i
>= 0; i
--)
6316 extern int main (int, char **);
6319 main (int argc
, char **argv
)
6323 int linker_was_run
= 0;
6324 int lang_n_infiles
= 0;
6325 int num_linker_inputs
= 0;
6326 char *explicit_link_files
;
6328 char *lto_wrapper_file
;
6330 struct user_specs
*uptr
;
6331 char **old_argv
= argv
;
6332 struct cl_decoded_option
*decoded_options
;
6333 unsigned int decoded_options_count
;
6335 p
= argv
[0] + strlen (argv
[0]);
6336 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6340 xmalloc_set_program_name (progname
);
6342 expandargv (&argc
, &argv
);
6344 /* Determine if any expansions were made. */
6345 if (argv
!= old_argv
)
6346 at_file_supplied
= true;
6348 /* Register the language-independent parameters. */
6349 global_init_params ();
6352 init_options_struct (&global_options
, &global_options_set
);
6354 decode_cmdline_options_to_array (argc
, CONST_CAST2 (const char **, char **,
6357 &decoded_options
, &decoded_options_count
);
6359 /* Unlock the stdio streams. */
6360 unlock_std_streams ();
6362 gcc_init_libintl ();
6364 diagnostic_initialize (global_dc
, 0);
6366 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6367 /* Perform host dependent initialization when needed. */
6368 GCC_DRIVER_HOST_INITIALIZATION
;
6371 if (atexit (delete_temp_files
) != 0)
6372 fatal_error ("atexit failed");
6374 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6375 signal (SIGINT
, fatal_signal
);
6377 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6378 signal (SIGHUP
, fatal_signal
);
6380 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6381 signal (SIGTERM
, fatal_signal
);
6383 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6384 signal (SIGPIPE
, fatal_signal
);
6387 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6388 receive the signal. A different setting is inheritable */
6389 signal (SIGCHLD
, SIG_DFL
);
6392 /* Parsing and gimplification sometimes need quite large stack.
6393 Increase stack size limits if possible. */
6394 stack_limit_increase (64 * 1024 * 1024);
6396 /* Allocate the argument vector. */
6399 obstack_init (&obstack
);
6401 /* Build multilib_select, et. al from the separate lines that make up each
6402 multilib selection. */
6404 const char *const *q
= multilib_raw
;
6407 obstack_init (&multilib_obstack
);
6408 while ((p
= *q
++) != (char *) 0)
6409 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6411 obstack_1grow (&multilib_obstack
, 0);
6412 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6414 q
= multilib_matches_raw
;
6415 while ((p
= *q
++) != (char *) 0)
6416 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6418 obstack_1grow (&multilib_obstack
, 0);
6419 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6421 q
= multilib_exclusions_raw
;
6422 while ((p
= *q
++) != (char *) 0)
6423 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6425 obstack_1grow (&multilib_obstack
, 0);
6426 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6428 q
= multilib_reuse_raw
;
6429 while ((p
= *q
++) != (char *) 0)
6430 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6432 obstack_1grow (&multilib_obstack
, 0);
6433 multilib_reuse
= XOBFINISH (&multilib_obstack
, const char *);
6436 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6439 obstack_1grow (&multilib_obstack
, ' ');
6440 obstack_grow (&multilib_obstack
,
6441 multilib_defaults_raw
[i
],
6442 strlen (multilib_defaults_raw
[i
]));
6446 obstack_1grow (&multilib_obstack
, 0);
6447 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6450 #ifdef INIT_ENVIRONMENT
6451 /* Set up any other necessary machine specific environment variables. */
6452 xputenv (INIT_ENVIRONMENT
);
6455 /* Make a table of what switches there are (switches, n_switches).
6456 Make a table of specified input files (infiles, n_infiles).
6457 Decode switches that are handled locally. */
6459 process_command (decoded_options_count
, decoded_options
);
6461 /* Initialize the vector of specs to just the default.
6462 This means one element containing 0s, as a terminator. */
6464 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
6465 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6466 n_compilers
= n_default_compilers
;
6468 /* Read specs from a file if there is one. */
6470 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6471 spec_version
, dir_separator_str
, NULL
);
6472 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6474 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6475 /* Read the specs file unless it is a default one. */
6476 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6477 read_specs (specs_file
, true, false);
6481 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6482 for any override of as, ld and libraries. */
6483 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
6484 + strlen (just_machine_suffix
) + sizeof ("specs"));
6486 strcpy (specs_file
, standard_exec_prefix
);
6487 strcat (specs_file
, just_machine_suffix
);
6488 strcat (specs_file
, "specs");
6489 if (access (specs_file
, R_OK
) == 0)
6490 read_specs (specs_file
, true, false);
6492 /* Process any configure-time defaults specified for the command line
6493 options, via OPTION_DEFAULT_SPECS. */
6494 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6495 do_option_spec (option_default_specs
[i
].name
,
6496 option_default_specs
[i
].spec
);
6498 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6499 of the command line. */
6501 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6502 do_self_spec (driver_self_specs
[i
]);
6504 /* If not cross-compiling, look for executables in the standard
6506 if (*cross_compile
== '0')
6508 if (*md_exec_prefix
)
6510 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6511 PREFIX_PRIORITY_LAST
, 0, 0);
6515 /* Process sysroot_suffix_spec. */
6516 if (*sysroot_suffix_spec
!= 0
6517 && !no_sysroot_suffix
6518 && do_spec_2 (sysroot_suffix_spec
) == 0)
6520 if (argbuf
.length () > 1)
6521 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6522 else if (argbuf
.length () == 1)
6523 target_sysroot_suffix
= xstrdup (argbuf
.last ());
6526 #ifdef HAVE_LD_SYSROOT
6527 /* Pass the --sysroot option to the linker, if it supports that. If
6528 there is a sysroot_suffix_spec, it has already been processed by
6529 this point, so target_system_root really is the system root we
6531 if (target_system_root
)
6533 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6534 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6535 set_spec ("link", XOBFINISH (&obstack
, const char *), false);
6539 /* Process sysroot_hdrs_suffix_spec. */
6540 if (*sysroot_hdrs_suffix_spec
!= 0
6541 && !no_sysroot_suffix
6542 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6544 if (argbuf
.length () > 1)
6545 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6546 else if (argbuf
.length () == 1)
6547 target_sysroot_hdrs_suffix
= xstrdup (argbuf
.last ());
6550 /* Look for startfiles in the standard places. */
6551 if (*startfile_prefix_spec
!= 0
6552 && do_spec_2 (startfile_prefix_spec
) == 0
6553 && do_spec_1 (" ", 0, NULL
) == 0)
6557 FOR_EACH_VEC_ELT (argbuf
, ndx
, arg
)
6558 add_sysrooted_prefix (&startfile_prefixes
, arg
, "BINUTILS",
6559 PREFIX_PRIORITY_LAST
, 0, 1);
6561 /* We should eventually get rid of all these and stick to
6562 startfile_prefix_spec exclusively. */
6563 else if (*cross_compile
== '0' || target_system_root
)
6565 if (*md_startfile_prefix
)
6566 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6567 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6569 if (*md_startfile_prefix_1
)
6570 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6571 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6573 /* If standard_startfile_prefix is relative, base it on
6574 standard_exec_prefix. This lets us move the installed tree
6575 as a unit. If GCC_EXEC_PREFIX is defined, base
6576 standard_startfile_prefix on that as well.
6578 If the prefix is relative, only search it for native compilers;
6579 otherwise we will search a directory containing host libraries. */
6580 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6581 add_sysrooted_prefix (&startfile_prefixes
,
6582 standard_startfile_prefix
, "BINUTILS",
6583 PREFIX_PRIORITY_LAST
, 0, 1);
6584 else if (*cross_compile
== '0')
6586 add_prefix (&startfile_prefixes
,
6587 concat (gcc_exec_prefix
6588 ? gcc_exec_prefix
: standard_exec_prefix
,
6590 standard_startfile_prefix
, NULL
),
6591 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6594 /* Sysrooted prefixes are relocated because target_system_root is
6595 also relocated by gcc_exec_prefix. */
6596 if (*standard_startfile_prefix_1
)
6597 add_sysrooted_prefix (&startfile_prefixes
,
6598 standard_startfile_prefix_1
, "BINUTILS",
6599 PREFIX_PRIORITY_LAST
, 0, 1);
6600 if (*standard_startfile_prefix_2
)
6601 add_sysrooted_prefix (&startfile_prefixes
,
6602 standard_startfile_prefix_2
, "BINUTILS",
6603 PREFIX_PRIORITY_LAST
, 0, 1);
6606 /* Process any user specified specs in the order given on the command
6608 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6610 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6612 read_specs (filename
? filename
: uptr
->filename
, false, true);
6615 /* Process any user self specs. */
6617 struct spec_list
*sl
;
6618 for (sl
= specs
; sl
; sl
= sl
->next
)
6619 if (sl
->name_len
== sizeof "self_spec" - 1
6620 && !strcmp (sl
->name
, "self_spec"))
6621 do_self_spec (*sl
->ptr_spec
);
6626 enum save_temps save
;
6628 if (!compare_debug_second
)
6630 n_switches_debug_check
[1] = n_switches
;
6631 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
6632 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
6635 do_self_spec ("%:compare-debug-self-opt()");
6636 n_switches_debug_check
[0] = n_switches
;
6637 n_switches_alloc_debug_check
[0] = n_switches_alloc
;
6638 switches_debug_check
[0] = switches
;
6640 n_switches
= n_switches_debug_check
[1];
6641 n_switches_alloc
= n_switches_alloc_debug_check
[1];
6642 switches
= switches_debug_check
[1];
6645 /* Avoid crash when computing %j in this early. */
6646 save
= save_temps_flag
;
6647 save_temps_flag
= SAVE_TEMPS_NONE
;
6649 compare_debug
= -compare_debug
;
6650 do_self_spec ("%:compare-debug-self-opt()");
6652 save_temps_flag
= save
;
6654 if (!compare_debug_second
)
6656 n_switches_debug_check
[1] = n_switches
;
6657 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
6658 switches_debug_check
[1] = switches
;
6659 compare_debug
= -compare_debug
;
6660 n_switches
= n_switches_debug_check
[0];
6661 n_switches_alloc
= n_switches_debug_check
[0];
6662 switches
= switches_debug_check
[0];
6667 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6668 if (gcc_exec_prefix
)
6669 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6670 spec_version
, dir_separator_str
, NULL
);
6672 /* Now we have the specs.
6673 Set the `valid' bits for switches that match anything in any spec. */
6675 validate_all_switches ();
6677 /* Now that we have the switches and the specs, set
6678 the subdirectory based on the options. */
6679 set_multilib_dir ();
6681 /* Set up to remember the pathname of gcc and any options
6682 needed for collect. We use argv[0] instead of progname because
6683 we need the complete pathname. */
6684 obstack_init (&collect_obstack
);
6685 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6686 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6687 xputenv (XOBFINISH (&collect_obstack
, char *));
6689 /* Set up to remember the pathname of the lto wrapper. */
6692 lto_wrapper_file
= NULL
;
6694 lto_wrapper_file
= find_a_file (&exec_prefixes
, "lto-wrapper",
6696 if (lto_wrapper_file
)
6698 lto_wrapper_file
= convert_white_space (lto_wrapper_file
);
6699 lto_wrapper_spec
= lto_wrapper_file
;
6700 obstack_init (&collect_obstack
);
6701 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
6702 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
6703 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
6704 strlen (lto_wrapper_spec
) + 1);
6705 xputenv (XOBFINISH (&collect_obstack
, char *));
6708 /* Reject switches that no pass was interested in. */
6710 for (i
= 0; (int) i
< n_switches
; i
++)
6711 if (! switches
[i
].validated
)
6712 error ("unrecognized command line option %<-%s%>", switches
[i
].part1
);
6714 /* Obey some of the options. */
6716 if (print_search_dirs
)
6718 printf (_("install: %s%s\n"),
6719 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
6720 gcc_exec_prefix
? "" : machine_suffix
);
6721 printf (_("programs: %s\n"),
6722 build_search_list (&exec_prefixes
, "", false, false));
6723 printf (_("libraries: %s\n"),
6724 build_search_list (&startfile_prefixes
, "", false, true));
6728 if (print_file_name
)
6730 printf ("%s\n", find_file (print_file_name
));
6734 if (print_prog_name
)
6736 if (use_ld
!= NULL
&& ! strcmp (print_prog_name
, "ld"))
6738 /* Append USE_LD to to the default linker. */
6739 #ifdef DEFAULT_LINKER
6741 # ifdef HAVE_HOST_EXECUTABLE_SUFFIX
6742 int len
= (sizeof (DEFAULT_LINKER
)
6743 - sizeof (HOST_EXECUTABLE_SUFFIX
));
6747 char *default_linker
= xstrdup (DEFAULT_LINKER
);
6748 /* Strip HOST_EXECUTABLE_SUFFIX if DEFAULT_LINKER contains
6749 HOST_EXECUTABLE_SUFFIX. */
6750 if (! strcmp (&default_linker
[len
], HOST_EXECUTABLE_SUFFIX
))
6752 default_linker
[len
] = '\0';
6753 ld
= concat (default_linker
, use_ld
,
6754 HOST_EXECUTABLE_SUFFIX
, NULL
);
6759 ld
= concat (DEFAULT_LINKER
, use_ld
, NULL
);
6760 if (access (ld
, X_OK
) == 0)
6762 printf ("%s\n", ld
);
6766 print_prog_name
= concat (print_prog_name
, use_ld
, NULL
);
6768 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6769 printf ("%s\n", (newname
? newname
: print_prog_name
));
6773 if (print_multi_lib
)
6775 print_multilib_info ();
6779 if (print_multi_directory
)
6781 if (multilib_dir
== NULL
)
6784 printf ("%s\n", multilib_dir
);
6788 if (print_multiarch
)
6790 if (multiarch_dir
== NULL
)
6793 printf ("%s\n", multiarch_dir
);
6799 if (target_system_root
)
6801 if (target_sysroot_suffix
)
6802 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
6804 printf ("%s\n", target_system_root
);
6809 if (print_multi_os_directory
)
6811 if (multilib_os_dir
== NULL
)
6814 printf ("%s\n", multilib_os_dir
);
6818 if (print_sysroot_headers_suffix
)
6820 if (*sysroot_hdrs_suffix_spec
)
6822 printf("%s\n", (target_sysroot_hdrs_suffix
6823 ? target_sysroot_hdrs_suffix
6828 /* The error status indicates that only one set of fixed
6829 headers should be built. */
6830 fatal_error ("not configured with sysroot headers suffix");
6833 if (print_help_list
)
6839 printf (_("\nFor bug reporting instructions, please see:\n"));
6840 printf ("%s.\n", bug_report_url
);
6845 /* We do not exit here. Instead we have created a fake input file
6846 called 'help-dummy' which needs to be compiled, and we pass this
6847 on the various sub-processes, along with the --help switch.
6848 Ensure their output appears after ours. */
6849 fputc ('\n', stdout
);
6855 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
6857 printf ("Copyright %s 2013 Free Software Foundation, Inc.\n",
6859 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
6860 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
6865 /* We do not exit here. We use the same mechanism of --help to print
6866 the version of the sub-processes. */
6867 fputc ('\n', stdout
);
6876 fnotice (stderr
, "Target: %s\n", spec_machine
);
6877 fnotice (stderr
, "Configured with: %s\n", configuration_arguments
);
6879 #ifdef THREAD_MODEL_SPEC
6880 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6881 but there's no point in doing all this processing just to get
6882 thread_model back. */
6883 obstack_init (&obstack
);
6884 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6885 obstack_1grow (&obstack
, '\0');
6886 thrmod
= XOBFINISH (&obstack
, const char *);
6888 thrmod
= thread_model
;
6891 fnotice (stderr
, "Thread model: %s\n", thrmod
);
6893 /* compiler_version is truncated at the first space when initialized
6894 from version string, so truncate version_string at the first space
6895 before comparing. */
6896 for (n
= 0; version_string
[n
]; n
++)
6897 if (version_string
[n
] == ' ')
6900 if (! strncmp (version_string
, compiler_version
, n
)
6901 && compiler_version
[n
] == 0)
6902 fnotice (stderr
, "gcc version %s %s\n", version_string
,
6905 fnotice (stderr
, "gcc driver version %s %sexecuting gcc version %s\n",
6906 version_string
, pkgversion_string
, compiler_version
);
6912 if (n_infiles
== added_libraries
)
6913 fatal_error ("no input files");
6918 /* Make a place to record the compiler output file names
6919 that correspond to the input files. */
6922 i
+= lang_specific_extra_outfiles
;
6923 outfiles
= XCNEWVEC (const char *, i
);
6925 /* Record which files were specified explicitly as link input. */
6927 explicit_link_files
= XCNEWVEC (char, n_infiles
);
6929 combine_inputs
= have_o
|| flag_wpa
;
6931 for (i
= 0; (int) i
< n_infiles
; i
++)
6933 const char *name
= infiles
[i
].name
;
6934 struct compiler
*compiler
= lookup_compiler (name
,
6936 infiles
[i
].language
);
6938 if (compiler
&& !(compiler
->combinable
))
6939 combine_inputs
= false;
6941 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6942 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6943 infiles
[i
].incompiler
= compiler
;
6947 input_file_compiler
= compiler
;
6948 infiles
[i
].incompiler
= compiler
;
6952 /* Since there is no compiler for this input file, assume it is a
6954 explicit_link_files
[i
] = 1;
6955 infiles
[i
].incompiler
= NULL
;
6957 infiles
[i
].compiled
= false;
6958 infiles
[i
].preprocessed
= false;
6961 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
6962 fatal_error ("cannot specify -o with -c, -S or -E with multiple files");
6964 for (i
= 0; (int) i
< n_infiles
; i
++)
6966 int this_file_error
= 0;
6968 /* Tell do_spec what to substitute for %i. */
6970 input_file_number
= i
;
6971 set_input (infiles
[i
].name
);
6973 if (infiles
[i
].compiled
)
6976 /* Use the same thing in %o, unless cp->spec says otherwise. */
6978 outfiles
[i
] = gcc_input_filename
;
6980 /* Figure out which compiler from the file's suffix. */
6983 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6984 infiles
[i
].language
);
6986 if (input_file_compiler
)
6988 /* Ok, we found an applicable compiler. Run its spec. */
6990 if (input_file_compiler
->spec
[0] == '#')
6992 error ("%s: %s compiler not installed on this system",
6993 gcc_input_filename
, &input_file_compiler
->spec
[1]);
6994 this_file_error
= 1;
7000 free (debug_check_temp_file
[0]);
7001 debug_check_temp_file
[0] = NULL
;
7003 free (debug_check_temp_file
[1]);
7004 debug_check_temp_file
[1] = NULL
;
7007 value
= do_spec (input_file_compiler
->spec
);
7008 infiles
[i
].compiled
= true;
7010 this_file_error
= 1;
7011 else if (compare_debug
&& debug_check_temp_file
[0])
7014 inform (0, "recompiling with -fcompare-debug");
7016 compare_debug
= -compare_debug
;
7017 n_switches
= n_switches_debug_check
[1];
7018 n_switches_alloc
= n_switches_alloc_debug_check
[1];
7019 switches
= switches_debug_check
[1];
7021 value
= do_spec (input_file_compiler
->spec
);
7023 compare_debug
= -compare_debug
;
7024 n_switches
= n_switches_debug_check
[0];
7025 n_switches_alloc
= n_switches_alloc_debug_check
[0];
7026 switches
= switches_debug_check
[0];
7030 error ("during -fcompare-debug recompilation");
7031 this_file_error
= 1;
7034 gcc_assert (debug_check_temp_file
[1]
7035 && filename_cmp (debug_check_temp_file
[0],
7036 debug_check_temp_file
[1]));
7039 inform (0, "comparing final insns dumps");
7041 if (compare_files (debug_check_temp_file
))
7042 this_file_error
= 1;
7047 free (debug_check_temp_file
[0]);
7048 debug_check_temp_file
[0] = NULL
;
7050 free (debug_check_temp_file
[1]);
7051 debug_check_temp_file
[1] = NULL
;
7056 /* If this file's name does not contain a recognized suffix,
7057 record it as explicit linker input. */
7060 explicit_link_files
[i
] = 1;
7062 /* Clear the delete-on-failure queue, deleting the files in it
7063 if this compilation failed. */
7065 if (this_file_error
)
7067 delete_failure_queue ();
7070 /* If this compilation succeeded, don't delete those files later. */
7071 clear_failure_queue ();
7074 /* Reset the input file name to the first compile/object file name, for use
7075 with %b in LINK_SPEC. We use the first input file that we can find
7076 a compiler to compile it instead of using infiles.language since for
7077 languages other than C we use aliases that we then lookup later. */
7082 for (i
= 0; i
< n_infiles
; i
++)
7083 if (infiles
[i
].incompiler
7084 || (infiles
[i
].language
&& infiles
[i
].language
[0] != '*'))
7086 set_input (infiles
[i
].name
);
7093 /* Make sure INPUT_FILE_NUMBER points to first available open
7095 input_file_number
= n_infiles
;
7096 if (lang_specific_pre_link ())
7100 /* Determine if there are any linker input files. */
7101 num_linker_inputs
= 0;
7102 for (i
= 0; (int) i
< n_infiles
; i
++)
7103 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
7104 num_linker_inputs
++;
7106 /* Run ld to link all the compiler output files. */
7108 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
7110 int tmp
= execution_count
;
7114 #if HAVE_LTO_PLUGIN > 0
7115 #if HAVE_LTO_PLUGIN == 2
7116 const char *fno_use_linker_plugin
= "fno-use-linker-plugin";
7118 const char *fuse_linker_plugin
= "fuse-linker-plugin";
7122 /* We'll use ld if we can't find collect2. */
7123 if (! strcmp (linker_name_spec
, "collect2"))
7125 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
7127 linker_name_spec
= "ld";
7130 #if HAVE_LTO_PLUGIN > 0
7131 #if HAVE_LTO_PLUGIN == 2
7132 if (!switch_matches (fno_use_linker_plugin
,
7133 fno_use_linker_plugin
7134 + strlen (fno_use_linker_plugin
), 0))
7136 if (switch_matches (fuse_linker_plugin
,
7138 + strlen (fuse_linker_plugin
), 0))
7141 char *temp_spec
= find_a_file (&exec_prefixes
,
7142 LTOPLUGINSONAME
, R_OK
,
7145 fatal_error ("-fuse-linker-plugin, but %s not found",
7147 linker_plugin_file_spec
= convert_white_space (temp_spec
);
7150 lto_gcc_spec
= argv
[0];
7153 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
7155 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
7156 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
7158 if (print_subprocess_help
== 1)
7160 printf (_("\nLinker options\n==============\n\n"));
7161 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
7162 " to the linker.\n\n"));
7165 value
= do_spec (link_command_spec
);
7168 linker_was_run
= (tmp
!= execution_count
);
7171 /* If options said don't run linker,
7172 complain about input files to be given to the linker. */
7174 if (! linker_was_run
&& !seen_error ())
7175 for (i
= 0; (int) i
< n_infiles
; i
++)
7176 if (explicit_link_files
[i
]
7177 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
7178 warning (0, "%s: linker input file unused because linking not done",
7181 /* Delete some or all of the temporary files we made. */
7184 delete_failure_queue ();
7185 delete_temp_files ();
7187 if (print_help_list
)
7189 printf (("\nFor bug reporting instructions, please see:\n"));
7190 printf ("%s\n", bug_report_url
);
7194 return (signal_count
!= 0 ? 2
7195 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
7199 /* Find the proper compilation spec for the file name NAME,
7200 whose length is LENGTH. LANGUAGE is the specified language,
7201 or 0 if this file is to be passed to the linker. */
7203 static struct compiler
*
7204 lookup_compiler (const char *name
, size_t length
, const char *language
)
7206 struct compiler
*cp
;
7208 /* If this was specified by the user to be a linker input, indicate that. */
7209 if (language
!= 0 && language
[0] == '*')
7212 /* Otherwise, look for the language, if one is spec'd. */
7215 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7216 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
7219 error ("language %s not recognized", language
);
7223 /* Look for a suffix. */
7224 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7226 if (/* The suffix `-' matches only the file name `-'. */
7227 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7228 || (strlen (cp
->suffix
) < length
7229 /* See if the suffix matches the end of NAME. */
7230 && !strcmp (cp
->suffix
,
7231 name
+ length
- strlen (cp
->suffix
))
7236 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
7237 /* Look again, but case-insensitively this time. */
7239 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7241 if (/* The suffix `-' matches only the file name `-'. */
7242 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7243 || (strlen (cp
->suffix
) < length
7244 /* See if the suffix matches the end of NAME. */
7245 && ((!strcmp (cp
->suffix
,
7246 name
+ length
- strlen (cp
->suffix
))
7247 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
7248 && !strcasecmp (cp
->suffix
,
7249 name
+ length
- strlen (cp
->suffix
)))
7255 if (cp
>= compilers
)
7257 if (cp
->spec
[0] != '@')
7258 /* A non-alias entry: return it. */
7261 /* An alias entry maps a suffix to a language.
7262 Search for the language; pass 0 for NAME and LENGTH
7263 to avoid infinite recursion if language not found. */
7264 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
7270 save_string (const char *s
, int len
)
7272 char *result
= XNEWVEC (char, len
+ 1);
7274 memcpy (result
, s
, len
);
7280 pfatal_with_name (const char *name
)
7282 perror_with_name (name
);
7283 delete_temp_files ();
7288 perror_with_name (const char *name
)
7290 error ("%s: %m", name
);
7294 validate_switches_from_spec (const char *spec
, bool user
)
7296 const char *p
= spec
;
7299 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
7300 /* We have a switch spec. */
7301 p
= validate_switches (p
+ 1, user
);
7305 validate_all_switches (void)
7307 struct compiler
*comp
;
7308 struct spec_list
*spec
;
7310 for (comp
= compilers
; comp
->spec
; comp
++)
7311 validate_switches_from_spec (comp
->spec
, false);
7313 /* Look through the linked list of specs read from the specs file. */
7314 for (spec
= specs
; spec
; spec
= spec
->next
)
7315 validate_switches_from_spec (*spec
->ptr_spec
, spec
->user_p
);
7317 validate_switches_from_spec (link_command_spec
, false);
7320 /* Look at the switch-name that comes after START
7321 and mark as valid all supplied switches that match it. */
7324 validate_switches (const char *start
, bool user_spec
)
7326 const char *p
= start
;
7330 bool suffix
= false;
7331 bool starred
= false;
7333 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7342 if (*p
== '.' || *p
== ',')
7346 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7347 || *p
== ',' || *p
== '.' || *p
== '@')
7352 starred
= true, p
++;
7358 /* Mark all matching switches as valid. */
7359 for (i
= 0; i
< n_switches
; i
++)
7360 if (!strncmp (switches
[i
].part1
, atom
, len
)
7361 && (starred
|| switches
[i
].part1
[len
] == '\0')
7362 && (switches
[i
].known
|| user_spec
))
7363 switches
[i
].validated
= true;
7367 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
7370 if (*p
&& p
[-1] == ':')
7372 while (*p
&& *p
!= ';' && *p
!= '}')
7377 if (*p
== '{' || *p
== '<')
7378 p
= validate_switches (p
+1, user_spec
);
7379 else if (p
[0] == 'W' && p
[1] == '{')
7380 p
= validate_switches (p
+2, user_spec
);
7387 if (*p
&& p
[-1] == ';')
7401 static struct mdswitchstr
*mdswitches
;
7402 static int n_mdswitches
;
7404 /* Check whether a particular argument was used. The first time we
7405 canonicalize the switches to keep only the ones we care about. */
7408 used_arg (const char *p
, int len
)
7413 const char *replace
;
7418 static struct mswitchstr
*mswitches
;
7419 static int n_mswitches
;
7424 struct mswitchstr
*matches
;
7428 /* Break multilib_matches into the component strings of string
7429 and replacement string. */
7430 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7435 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
7437 q
= multilib_matches
;
7446 fatal_error ("multilib spec %qs is invalid",
7451 matches
[i
].len
= q
- matches
[i
].str
;
7453 matches
[i
].replace
= ++q
;
7454 while (*q
!= ';' && *q
!= '\0')
7457 goto invalid_matches
;
7460 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7466 /* Now build a list of the replacement string for switches that we care
7467 about. Make sure we allocate at least one entry. This prevents
7468 xmalloc from calling fatal, and prevents us from re-executing this
7471 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7472 for (i
= 0; i
< n_switches
; i
++)
7473 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
7475 int xlen
= strlen (switches
[i
].part1
);
7476 for (j
= 0; j
< cnt
; j
++)
7477 if (xlen
== matches
[j
].len
7478 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7480 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7481 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7482 mswitches
[n_mswitches
].replace
= (char *) 0;
7483 mswitches
[n_mswitches
].rep_len
= 0;
7489 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7490 on the command line nor any options mutually incompatible with
7492 for (i
= 0; i
< n_mdswitches
; i
++)
7496 for (q
= multilib_options
; *q
!= '\0'; q
++)
7502 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7503 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7505 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7512 if (*q
!= ' ' && *q
!= '\0')
7514 while (*r
!= ' ' && *r
!= '\0')
7517 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7520 if (used_arg (r
, q
- r
))
7525 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7526 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7527 mswitches
[n_mswitches
].replace
= (char *) 0;
7528 mswitches
[n_mswitches
].rep_len
= 0;
7541 for (i
= 0; i
< n_mswitches
; i
++)
7542 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7549 default_arg (const char *p
, int len
)
7553 for (i
= 0; i
< n_mdswitches
; i
++)
7554 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7560 /* Work out the subdirectory to use based on the options. The format of
7561 multilib_select is a list of elements. Each element is a subdirectory
7562 name followed by a list of options followed by a semicolon. The format
7563 of multilib_exclusions is the same, but without the preceding
7564 directory. First gcc will check the exclusions, if none of the options
7565 beginning with an exclamation point are present, and all of the other
7566 options are present, then we will ignore this completely. Passing
7567 that, gcc will consider each multilib_select in turn using the same
7568 rules for matching the options. If a match is found, that subdirectory
7570 A subdirectory name is optionally followed by a colon and the corresponding
7574 set_multilib_dir (void)
7577 unsigned int this_path_len
;
7578 const char *this_path
, *this_arg
;
7579 const char *start
, *end
;
7581 int ok
, ndfltok
, first
;
7584 start
= multilib_defaults
;
7585 while (*start
== ' ' || *start
== '\t')
7587 while (*start
!= '\0')
7590 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7592 while (*start
== ' ' || *start
== '\t')
7600 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
7601 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7603 while (*start
== ' ' || *start
== '\t')
7609 for (end
= start
+ 1;
7610 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7613 obstack_grow (&multilib_obstack
, start
, end
- start
);
7614 obstack_1grow (&multilib_obstack
, 0);
7615 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
7616 mdswitches
[i
++].len
= end
- start
;
7623 p
= multilib_exclusions
;
7626 /* Ignore newlines. */
7633 /* Check the arguments. */
7640 fatal_error ("multilib exclusions %qs is invalid",
7641 multilib_exclusions
);
7651 while (*p
!= ' ' && *p
!= ';')
7654 goto invalid_exclusions
;
7658 if (*this_arg
!= '!')
7666 ok
= used_arg (this_arg
, p
- this_arg
);
7681 p
= multilib_select
;
7683 /* Append multilib reuse rules if any. With those rules, we can reuse
7684 one multilib for certain different options sets. */
7685 if (strlen (multilib_reuse
) > 0)
7686 p
= concat (p
, multilib_reuse
, NULL
);
7690 /* Ignore newlines. */
7697 /* Get the initial path. */
7704 fatal_error ("multilib select %qs %qs is invalid",
7705 multilib_select
, multilib_reuse
);
7709 this_path_len
= p
- this_path
;
7711 /* Check the arguments. */
7718 goto invalid_select
;
7727 while (*p
!= ' ' && *p
!= ';')
7730 goto invalid_select
;
7734 if (*this_arg
!= '!')
7742 /* If this is a default argument, we can just ignore it.
7743 This is true even if this_arg begins with '!'. Beginning
7744 with '!' does not mean that this argument is necessarily
7745 inappropriate for this library: it merely means that
7746 there is a more specific library which uses this
7747 argument. If this argument is a default, we need not
7748 consider that more specific library. */
7749 ok
= used_arg (this_arg
, p
- this_arg
);
7756 if (default_arg (this_arg
, p
- this_arg
))
7765 if (this_path_len
!= 1
7766 || this_path
[0] != '.')
7768 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
7771 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7772 new_multilib_dir
[this_path_len
] = '\0';
7773 q
= strchr (new_multilib_dir
, ':');
7776 multilib_dir
= new_multilib_dir
;
7783 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7785 while (q
< end
&& *q
!= ':')
7789 const char *q2
= q
+ 1, *ml_end
= end
;
7790 char *new_multilib_os_dir
;
7792 while (q2
< end
&& *q2
!= ':')
7796 new_multilib_os_dir
= XNEWVEC (char, ml_end
- q
);
7797 memcpy (new_multilib_os_dir
, q
+ 1, ml_end
- q
- 1);
7798 new_multilib_os_dir
[ml_end
- q
- 1] = '\0';
7799 multilib_os_dir
= *new_multilib_os_dir
? new_multilib_os_dir
: ".";
7801 if (q2
< end
&& *q2
== ':')
7803 char *new_multiarch_dir
= XNEWVEC (char, end
- q2
);
7804 memcpy (new_multiarch_dir
, q2
+ 1, end
- q2
- 1);
7805 new_multiarch_dir
[end
- q2
- 1] = '\0';
7806 multiarch_dir
= new_multiarch_dir
;
7815 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7816 && strcmp (multilib_os_dir
, ".") == 0)
7818 free (CONST_CAST (char *, multilib_os_dir
));
7819 multilib_os_dir
= NULL
;
7821 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7822 multilib_os_dir
= multilib_dir
;
7825 /* Print out the multiple library subdirectory selection
7826 information. This prints out a series of lines. Each line looks
7827 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7828 required. Only the desired options are printed out, the negative
7829 matches. The options are print without a leading dash. There are
7830 no spaces to make it easy to use the information in the shell.
7831 Each subdirectory is printed only once. This assumes the ordering
7832 generated by the genmultilib script. Also, we leave out ones that match
7836 print_multilib_info (void)
7838 const char *p
= multilib_select
;
7839 const char *last_path
= 0, *this_path
;
7841 unsigned int last_path_len
= 0;
7846 /* Ignore newlines. */
7853 /* Get the initial path. */
7860 fatal_error ("multilib select %qs is invalid", multilib_select
);
7866 /* When --disable-multilib was used but target defines
7867 MULTILIB_OSDIRNAMES, entries starting with .: (and not starting
7868 with .:: for multiarch configurations) are there just to find
7869 multilib_os_dir, so skip them from output. */
7870 if (this_path
[0] == '.' && this_path
[1] == ':' && this_path
[2] != ':')
7873 /* Check for matches with the multilib_exclusions. We don't bother
7874 with the '!' in either list. If any of the exclusion rules match
7875 all of its options with the select rule, we skip it. */
7877 const char *e
= multilib_exclusions
;
7878 const char *this_arg
;
7883 /* Ignore newlines. */
7890 /* Check the arguments. */
7899 fatal_error ("multilib exclusion %qs is invalid",
7900 multilib_exclusions
);
7911 while (*e
!= ' ' && *e
!= ';')
7914 goto invalid_exclusion
;
7922 int len
= e
- this_arg
;
7925 goto invalid_select
;
7929 while (*q
!= ' ' && *q
!= ';')
7932 goto invalid_select
;
7936 if (! strncmp (arg
, this_arg
,
7937 (len
< q
- arg
) ? q
- arg
: len
)
7938 || default_arg (this_arg
, e
- this_arg
))
7968 /* If this is a duplicate, skip it. */
7969 skip
= (last_path
!= 0
7970 && (unsigned int) (p
- this_path
) == last_path_len
7971 && ! filename_ncmp (last_path
, this_path
, last_path_len
));
7973 last_path
= this_path
;
7974 last_path_len
= p
- this_path
;
7977 /* If this directory requires any default arguments, we can skip
7978 it. We will already have printed a directory identical to
7979 this one which does not require that default argument. */
7990 goto invalid_select
;
7997 while (*q
!= ' ' && *q
!= ';')
8000 goto invalid_select
;
8005 && default_arg (arg
, q
- arg
))
8020 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
8031 goto invalid_select
;
8039 use_arg
= *p
!= '!';
8044 while (*p
!= ' ' && *p
!= ';')
8047 goto invalid_select
;
8059 /* If there are extra options, print them now. */
8060 if (multilib_extra
&& *multilib_extra
)
8062 int print_at
= TRUE
;
8065 for (q
= multilib_extra
; *q
!= '\0'; q
++)
8086 /* getenv built-in spec function.
8088 Returns the value of the environment variable given by its first
8089 argument, concatenated with the second argument. If the
8090 environment variable is not defined, a fatal error is issued. */
8093 getenv_spec_function (int argc
, const char **argv
)
8103 value
= getenv (argv
[0]);
8105 fatal_error ("environment variable %qs not defined", argv
[0]);
8107 /* We have to escape every character of the environment variable so
8108 they are not interpreted as active spec characters. A
8109 particularly painful case is when we are reading a variable
8110 holding a windows path complete with \ separators. */
8111 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
8112 result
= XNEWVAR (char, len
);
8113 for (ptr
= result
; *value
; ptr
+= 2)
8119 strcpy (ptr
, argv
[1]);
8124 /* if-exists built-in spec function.
8126 Checks to see if the file specified by the absolute pathname in
8127 ARGS exists. Returns that pathname if found.
8129 The usual use for this function is to check for a library file
8130 (whose name has been expanded with %s). */
8133 if_exists_spec_function (int argc
, const char **argv
)
8135 /* Must have only one argument. */
8136 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8142 /* if-exists-else built-in spec function.
8144 This is like if-exists, but takes an additional argument which
8145 is returned if the first argument does not exist. */
8148 if_exists_else_spec_function (int argc
, const char **argv
)
8150 /* Must have exactly two arguments. */
8154 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8160 /* sanitize built-in spec function.
8162 This returns non-NULL, if sanitizing address, thread or
8163 any of the undefined behavior sanitizers. */
8166 sanitize_spec_function (int argc
, const char **argv
)
8171 if (strcmp (argv
[0], "address") == 0)
8172 return (flag_sanitize
& SANITIZE_ADDRESS
) ? "" : NULL
;
8173 if (strcmp (argv
[0], "thread") == 0)
8174 return (flag_sanitize
& SANITIZE_THREAD
) ? "" : NULL
;
8175 if (strcmp (argv
[0], "undefined") == 0)
8176 return (flag_sanitize
& SANITIZE_UNDEFINED
) ? "" : NULL
;
8177 if (strcmp (argv
[0], "leak") == 0)
8178 return ((flag_sanitize
8179 & (SANITIZE_ADDRESS
| SANITIZE_LEAK
| SANITIZE_THREAD
))
8180 == SANITIZE_LEAK
) ? "" : NULL
;
8184 /* replace-outfile built-in spec function.
8186 This looks for the first argument in the outfiles array's name and
8187 replaces it with the second argument. */
8190 replace_outfile_spec_function (int argc
, const char **argv
)
8193 /* Must have exactly two arguments. */
8197 for (i
= 0; i
< n_infiles
; i
++)
8199 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
8200 outfiles
[i
] = xstrdup (argv
[1]);
8205 /* remove-outfile built-in spec function.
8207 * This looks for the first argument in the outfiles array's name and
8211 remove_outfile_spec_function (int argc
, const char **argv
)
8214 /* Must have exactly one argument. */
8218 for (i
= 0; i
< n_infiles
; i
++)
8220 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
8226 /* Given two version numbers, compares the two numbers.
8227 A version number must match the regular expression
8228 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
8231 compare_version_strings (const char *v1
, const char *v2
)
8236 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
8237 REG_EXTENDED
| REG_NOSUB
) != 0)
8239 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
8240 if (rresult
== REG_NOMATCH
)
8241 fatal_error ("invalid version number %qs", v1
);
8242 else if (rresult
!= 0)
8244 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
8245 if (rresult
== REG_NOMATCH
)
8246 fatal_error ("invalid version number %qs", v2
);
8247 else if (rresult
!= 0)
8250 return strverscmp (v1
, v2
);
8254 /* version_compare built-in spec function.
8256 This takes an argument of the following form:
8258 <comparison-op> <arg1> [<arg2>] <switch> <result>
8260 and produces "result" if the comparison evaluates to true,
8261 and nothing if it doesn't.
8263 The supported <comparison-op> values are:
8265 >= true if switch is a later (or same) version than arg1
8267 < true if switch is an earlier version than arg1
8269 >< true if switch is arg1 or later, and earlier than arg2
8270 <> true if switch is earlier than arg1 or is arg2 or later
8272 If the switch is not present, the condition is false unless
8273 the first character of the <comparison-op> is '!'.
8276 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
8277 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
8280 version_compare_spec_function (int argc
, const char **argv
)
8284 const char *switch_value
= NULL
;
8289 fatal_error ("too few arguments to %%:version-compare");
8290 if (argv
[0][0] == '\0')
8292 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
8294 if (argc
!= nargs
+ 3)
8295 fatal_error ("too many arguments to %%:version-compare");
8297 switch_len
= strlen (argv
[nargs
+ 1]);
8298 for (i
= 0; i
< n_switches
; i
++)
8299 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
8300 && check_live_switch (i
, switch_len
))
8301 switch_value
= switches
[i
].part1
+ switch_len
;
8303 if (switch_value
== NULL
)
8307 comp1
= compare_version_strings (switch_value
, argv
[1]);
8309 comp2
= compare_version_strings (switch_value
, argv
[2]);
8311 comp2
= -1; /* This value unused. */
8314 switch (argv
[0][0] << 8 | argv
[0][1])
8316 case '>' << 8 | '=':
8317 result
= comp1
>= 0;
8319 case '!' << 8 | '<':
8320 result
= comp1
>= 0 || switch_value
== NULL
;
8325 case '!' << 8 | '>':
8326 result
= comp1
< 0 || switch_value
== NULL
;
8328 case '>' << 8 | '<':
8329 result
= comp1
>= 0 && comp2
< 0;
8331 case '<' << 8 | '>':
8332 result
= comp1
< 0 || comp2
>= 0;
8336 fatal_error ("unknown operator %qs in %%:version-compare", argv
[0]);
8341 return argv
[nargs
+ 2];
8344 /* %:include builtin spec function. This differs from %include in that it
8345 can be nested inside a spec, and thus be conditionalized. It takes
8346 one argument, the filename, and looks for it in the startfile path.
8347 The result is always NULL, i.e. an empty expansion. */
8350 include_spec_function (int argc
, const char **argv
)
8357 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
8358 read_specs (file
? file
: argv
[0], false, false);
8363 /* %:find-file spec function. This function replaces its argument by
8364 the file found through find_file, that is the -print-file-name gcc
8367 find_file_spec_function (int argc
, const char **argv
)
8374 file
= find_file (argv
[0]);
8379 /* %:find-plugindir spec function. This function replaces its argument
8380 by the -iplugindir=<dir> option. `dir' is found through find_file, that
8381 is the -print-file-name gcc program option. */
8383 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
8390 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
8395 /* %:print-asm-header spec function. Print a banner to say that the
8396 following output is from the assembler. */
8399 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
8400 const char **argv ATTRIBUTE_UNUSED
)
8402 printf (_("Assembler options\n=================\n\n"));
8403 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
8408 /* Get a random number for -frandom-seed */
8410 static unsigned HOST_WIDE_INT
8411 get_random_number (void)
8413 unsigned HOST_WIDE_INT ret
= 0;
8416 fd
= open ("/dev/urandom", O_RDONLY
);
8419 read (fd
, &ret
, sizeof (HOST_WIDE_INT
));
8425 /* Get some more or less random data. */
8426 #ifdef HAVE_GETTIMEOFDAY
8430 gettimeofday (&tv
, NULL
);
8431 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
8435 time_t now
= time (NULL
);
8437 if (now
!= (time_t)-1)
8438 ret
= (unsigned) now
;
8442 return ret
^ getpid ();
8445 /* %:compare-debug-dump-opt spec function. Save the last argument,
8446 expected to be the last -fdump-final-insns option, or generate a
8450 compare_debug_dump_opt_spec_function (int arg
,
8451 const char **argv ATTRIBUTE_UNUSED
)
8456 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
8459 fatal_error ("too many arguments to %%:compare-debug-dump-opt");
8461 do_spec_2 ("%{fdump-final-insns=*:%*}");
8462 do_spec_1 (" ", 0, NULL
);
8464 if (argbuf
.length () > 0
8465 && strcmp (argv
[argbuf
.length () - 1], "."))
8470 name
= xstrdup (argv
[argbuf
.length () - 1]);
8475 const char *ext
= NULL
;
8477 if (argbuf
.length () > 0)
8479 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
8482 else if (!compare_debug
)
8485 do_spec_2 ("%g.gkd");
8487 do_spec_1 (" ", 0, NULL
);
8489 gcc_assert (argbuf
.length () > 0);
8491 name
= concat (argbuf
.last (), ext
, NULL
);
8493 ret
= concat ("-fdump-final-insns=", name
, NULL
);
8496 which
= compare_debug
< 0;
8497 debug_check_temp_file
[which
] = name
;
8501 unsigned HOST_WIDE_INT value
= get_random_number ();
8503 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
8509 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
8520 static const char *debug_auxbase_opt
;
8522 /* %:compare-debug-self-opt spec function. Expands to the options
8523 that are to be passed in the second compilation of
8527 compare_debug_self_opt_spec_function (int arg
,
8528 const char **argv ATTRIBUTE_UNUSED
)
8531 fatal_error ("too many arguments to %%:compare-debug-self-opt");
8533 if (compare_debug
>= 0)
8536 do_spec_2 ("%{c|S:%{o*:%*}}");
8537 do_spec_1 (" ", 0, NULL
);
8539 if (argbuf
.length () > 0)
8540 debug_auxbase_opt
= concat ("-auxbase-strip ",
8544 debug_auxbase_opt
= NULL
;
8547 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
8548 %<fdump-final-insns=* -w -S -o %j \
8549 %{!fcompare-debug-second:-fcompare-debug-second} \
8550 ", compare_debug_opt
, NULL
);
8553 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
8554 options that are to be passed in the second compilation of
8555 compare-debug. It expects, as an argument, the basename of the
8556 current input file name, with the .gk suffix appended to it. */
8559 compare_debug_auxbase_opt_spec_function (int arg
,
8566 fatal_error ("too few arguments to %%:compare-debug-auxbase-opt");
8569 fatal_error ("too many arguments to %%:compare-debug-auxbase-opt");
8571 if (compare_debug
>= 0)
8574 len
= strlen (argv
[0]);
8575 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
8576 fatal_error ("argument to %%:compare-debug-auxbase-opt "
8577 "does not end in .gk");
8579 if (debug_auxbase_opt
)
8580 return debug_auxbase_opt
;
8582 #define OPT "-auxbase "
8585 name
= (char*) xmalloc (sizeof (OPT
) + len
);
8586 memcpy (name
, OPT
, sizeof (OPT
) - 1);
8587 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
8588 name
[sizeof (OPT
) - 1 + len
] = '\0';
8595 /* %:pass-through-libs spec function. Finds all -l options and input
8596 file names in the lib spec passed to it, and makes a list of them
8597 prepended with the plugin option to cause them to be passed through
8598 to the final link after all the new object files have been added. */
8601 pass_through_libs_spec_func (int argc
, const char **argv
)
8603 char *prepended
= xstrdup (" ");
8605 /* Shlemiel the painter's algorithm. Innately horrible, but at least
8606 we know that there will never be more than a handful of strings to
8607 concat, and it's only once per run, so it's not worth optimising. */
8608 for (n
= 0; n
< argc
; n
++)
8610 char *old
= prepended
;
8611 /* Anything that isn't an option is a full path to an output
8612 file; pass it through if it ends in '.a'. Among options,
8614 if (argv
[n
][0] == '-' && argv
[n
][1] == 'l')
8616 const char *lopt
= argv
[n
] + 2;
8617 /* Handle both joined and non-joined -l options. If for any
8618 reason there's a trailing -l with no joined or following
8619 arg just discard it. */
8620 if (!*lopt
&& ++n
>= argc
)
8624 prepended
= concat (prepended
, "-plugin-opt=-pass-through=-l",
8627 else if (!strcmp (".a", argv
[n
] + strlen (argv
[n
]) - 2))
8629 prepended
= concat (prepended
, "-plugin-opt=-pass-through=",
8630 argv
[n
], " ", NULL
);
8632 if (prepended
!= old
)
8638 /* %:replace-extension spec function. Replaces the extension of the
8639 first argument with the second argument. */
8642 replace_extension_spec_func (int argc
, const char **argv
)
8650 fatal_error ("too few arguments to %%:replace-extension");
8652 name
= xstrdup (argv
[0]);
8654 for (i
= strlen (name
) - 1; i
>= 0; i
--)
8655 if (IS_DIR_SEPARATOR (name
[i
]))
8658 p
= strrchr (name
+ i
+ 1, '.');
8662 result
= concat (name
, argv
[1], NULL
);
8668 /* Insert backslash before spaces in ORIG (usually a file path), to
8669 avoid being broken by spec parser.
8671 This function is needed as do_spec_1 treats white space (' ' and '\t')
8672 as the end of an argument. But in case of -plugin /usr/gcc install/xxx.so,
8673 the file name should be treated as a single argument rather than being
8674 broken into multiple. Solution is to insert '\\' before the space in a
8677 This function converts and only converts all occurrence of ' '
8678 to '\\' + ' ' and '\t' to '\\' + '\t'. For example:
8682 "a\\ b" -> "a\\\\ b"
8684 orig: input null-terminating string that was allocated by xalloc. The
8685 memory it points to might be freed in this function. Behavior undefined
8686 if ORIG wasn't xalloced or was freed already at entry.
8688 Return: ORIG if no conversion needed. Otherwise a newly allocated string
8689 that was converted from ORIG. */
8692 convert_white_space (char *orig
)
8694 int len
, number_of_space
= 0;
8696 for (len
= 0; orig
[len
]; len
++)
8697 if (orig
[len
] == ' ' || orig
[len
] == '\t') number_of_space
++;
8699 if (number_of_space
)
8701 char *new_spec
= (char *) xmalloc (len
+ number_of_space
+ 1);
8703 for (j
= 0, k
= 0; j
<= len
; j
++, k
++)
8705 if (orig
[j
] == ' ' || orig
[j
] == '\t')
8706 new_spec
[k
++] = '\\';
8707 new_spec
[k
] = orig
[j
];