1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987-2014 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:%{!fno-lto"
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:%: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 %{fcilkplus:%:include(libcilkrts.spec)%(link_cilkrts)}\
771 %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
772 %{fupc:%:include(libgupc.spec)%(link_upc)}\
773 %(mflib) " STACK_SPLIT_SPEC "\
774 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \
775 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
776 %{!nostdlib:%{!nostartfiles:%{fupc:%:include(upc-crtend.spec)%(upc_crtend)}}}\
777 %{!nostdlib:%{!nostartfiles:%E}} %{T*} }}}}}}"
780 #ifndef LINK_LIBGCC_SPEC
781 /* Generate -L options for startfile prefix list. */
782 # define LINK_LIBGCC_SPEC "%D"
785 #ifndef STARTFILE_PREFIX_SPEC
786 # define STARTFILE_PREFIX_SPEC ""
790 # define SYSROOT_SPEC "--sysroot=%R"
793 #ifndef SYSROOT_SUFFIX_SPEC
794 # define SYSROOT_SUFFIX_SPEC ""
797 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
798 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
801 static const char *asm_debug
= ASM_DEBUG_SPEC
;
802 static const char *cpp_spec
= CPP_SPEC
;
803 static const char *cc1_spec
= CC1_SPEC
;
804 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
805 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
806 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
807 static const char *asm_spec
= ASM_SPEC
;
808 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
809 static const char *link_spec
= LINK_SPEC
;
810 static const char *lib_spec
= LIB_SPEC
;
811 static const char *link_gomp_spec
= "";
812 static const char *upc_crtbegin_spec
= "";
813 static const char *link_upc_spec
= "";
814 static const char *upc_crtend_spec
= "";
815 static const char *libgcc_spec
= LIBGCC_SPEC
;
816 static const char *endfile_spec
= ENDFILE_SPEC
;
817 static const char *startfile_spec
= STARTFILE_SPEC
;
818 static const char *linker_name_spec
= LINKER_NAME
;
819 static const char *linker_plugin_file_spec
= "";
820 static const char *lto_wrapper_spec
= "";
821 static const char *lto_gcc_spec
= "";
822 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
823 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
824 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
825 static const char *sysroot_spec
= SYSROOT_SPEC
;
826 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
827 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
828 static const char *self_spec
= "";
830 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
831 There should be no need to override these in target dependent files,
832 but we need to copy them to the specs file so that newer versions
833 of the GCC driver can correctly drive older tool chains with the
834 appropriate -B options. */
836 /* When cpplib handles traditional preprocessing, get rid of this, and
837 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
838 that we default the front end language better. */
839 static const char *trad_capable_cpp
=
840 "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}";
842 /* We don't wrap .d files in %W{} since a missing .d file, and
843 therefore no dependency entry, confuses make into thinking a .o
844 file that happens to exist is up-to-date. */
845 static const char *cpp_unique_options
=
846 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
847 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
848 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
849 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
850 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
851 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
852 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
853 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
856 /* This contains cpp options which are common with cc1_options and are passed
857 only when preprocessing only to avoid duplication. We pass the cc1 spec
858 options to the preprocessor so that it the cc1 spec may manipulate
859 options used to set target flags. Those special target flags settings may
860 in turn cause preprocessor symbols to be defined specially. */
861 static const char *cpp_options
=
862 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
863 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
864 %{undef} %{save-temps*:-fpch-preprocess}";
866 /* This contains cpp options which are not passed when the preprocessor
867 output will be used by another program. */
868 static const char *cpp_debug_options
= "%{d*}";
870 /* NB: This is shared amongst all front-ends, except for Ada. */
871 static const char *cc1_options
=
872 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
873 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
874 %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\
875 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
876 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
877 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
878 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
879 %{Qn:-fno-ident} %{Qy:} %{-help:--help}\
880 %{-target-help:--target-help}\
881 %{-version:--version}\
882 %{-help=*:--help=%*}\
883 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
884 %{fsyntax-only:-o %j} %{-param*}\
885 %{coverage:-fprofile-arcs -ftest-coverage}";
887 static const char *upc_options
=
888 "-fupc %{!fno-upc-pre-include:-include gcc-upc.h}";
890 static const char *asm_options
=
891 "%{-target-help:%:print-asm-header()} "
893 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
894 to the assembler equivalents. */
895 "%{v} %{w:-W} %{I*} "
897 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
899 static const char *invoke_as
=
900 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
902 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
903 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
907 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
908 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
912 /* Some compilers have limits on line lengths, and the multilib_select
913 and/or multilib_matches strings can be very long, so we build them at
915 static struct obstack multilib_obstack
;
916 static const char *multilib_select
;
917 static const char *multilib_matches
;
918 static const char *multilib_defaults
;
919 static const char *multilib_exclusions
;
920 static const char *multilib_reuse
;
922 /* Check whether a particular argument is a default argument. */
924 #ifndef MULTILIB_DEFAULTS
925 #define MULTILIB_DEFAULTS { "" }
928 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
930 #ifndef DRIVER_SELF_SPECS
931 #define DRIVER_SELF_SPECS ""
934 /* Linking to libgomp implies pthreads. This is particularly important
935 for targets that use different start files and suchlike. */
936 #ifndef GOMP_SELF_SPECS
937 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
940 /* Likewise for -fgnu-tm. */
941 #ifndef GTM_SELF_SPECS
942 #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}"
945 /* Likewise for -fcilkplus. */
946 #ifndef CILK_SELF_SPECS
947 #define CILK_SELF_SPECS "%{fcilkplus: -pthread}"
950 static const char *const driver_self_specs
[] = {
951 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
952 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
, GTM_SELF_SPECS
,
956 #ifndef OPTION_DEFAULT_SPECS
957 #define OPTION_DEFAULT_SPECS { "", "" }
966 static const struct default_spec
967 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
971 struct user_specs
*next
;
972 const char *filename
;
975 static struct user_specs
*user_specs_head
, *user_specs_tail
;
978 /* Record the mapping from file suffixes for compilation specs. */
982 const char *suffix
; /* Use this compiler for input files
983 whose names end in this suffix. */
985 const char *spec
; /* To use this compiler, run this spec. */
987 const char *cpp_spec
; /* If non-NULL, substitute this spec
988 for `%C', rather than the usual
990 const int combinable
; /* If nonzero, compiler can deal with
991 multiple source files at once (IMA). */
992 const int needs_preprocessing
; /* If nonzero, source files need to
993 be run through a preprocessor. */
996 /* Pointer to a vector of `struct compiler' that gives the spec for
997 compiling a file, based on its suffix.
998 A file that does not end in any of these suffixes will be passed
999 unchanged to the loader and nothing else will be done to it.
1001 An entry containing two 0s is used to terminate the vector.
1003 If multiple entries match a file, the last matching one is used. */
1005 static struct compiler
*compilers
;
1007 /* Number of entries in `compilers', not counting the null terminator. */
1009 static int n_compilers
;
1011 /* The default list of file name suffixes and their compilation specs. */
1013 static const struct compiler default_compilers
[] =
1015 /* Add lists of suffixes of known languages here. If those languages
1016 were not present when we built the driver, we will hit these copies
1017 and be given a more meaningful error than "file not used since
1018 linking is not done". */
1019 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1020 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1021 {".mii", "#Objective-C++", 0, 0, 0},
1022 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1023 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1024 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1025 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1026 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1027 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1028 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1029 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1030 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1031 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1032 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1033 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1034 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1035 {".r", "#Ratfor", 0, 0, 0},
1036 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
1037 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
1038 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
1039 {".go", "#Go", 0, 1, 0},
1040 /* Next come the entries for C. */
1041 {".c", "@c", 0, 0, 1},
1043 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1044 external preprocessor if -save-temps is given. */
1045 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1048 %eGNU C no longer supports -traditional without -E}\
1049 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1050 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1051 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1053 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1054 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1055 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
1057 "%{!E:%e-E or -x required when input is from standard input}\
1058 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1059 {".h", "@c-header", 0, 0, 0},
1061 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1062 external preprocessor if -save-temps is given. */
1063 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1065 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1066 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1067 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1069 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
1070 %W{o*:--output-pch=%*}}%V}\
1071 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1072 cc1 %(cpp_unique_options) %(cc1_options)\
1073 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
1074 %W{o*:--output-pch=%*}}%V}}}}}}", 0, 0, 0},
1075 {".i", "@cpp-output", 0, 0, 0},
1077 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
1078 {".s", "@assembler", 0, 0, 0},
1080 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
1081 {".sx", "@assembler-with-cpp", 0, 0, 0},
1082 {".S", "@assembler-with-cpp", 0, 0, 0},
1083 {"@assembler-with-cpp",
1084 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1085 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1086 %{E|M|MM:%(cpp_debug_options)}\
1087 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1088 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1090 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1091 %{E|M|MM:%(cpp_debug_options)}\
1092 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1093 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1096 {".upc", "@upc", 0, 0, 0},
1098 /* Same as "@c" above, with the addition of %(upc_options). */
1099 "%{E|M|MM:cc1 -E %(upc_options) %(cpp_options) %(cpp_debug_options)}\
1101 %{traditional|ftraditional|traditional-cpp:\
1102 %e UPC does not support traditional compilation}\
1103 %{save-temps|no-integrated-cpp:\
1104 cc1 -E %(upc_options) %(cpp_options)\
1105 %{save-temps:%b.mi} %{!save-temps:%g.mi} \n\
1106 cc1 -fpreprocessed %{save-temps:%b.mi} %{!save-temps:%g.mi}\
1107 %(upc_options) %(cc1_options)}\
1108 %{!save-temps:%{!no-integrated-cpp:\
1109 cc1 %(cpp_unique_options) %(upc_options) %(cc1_options)}}\
1110 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
1113 /* Mark end of table. */
1117 /* Number of elements in default_compilers, not counting the terminator. */
1119 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1121 typedef char *char_p
; /* For DEF_VEC_P. */
1123 /* A vector of options to give to the linker.
1124 These options are accumulated by %x,
1125 and substituted into the linker command with %X. */
1126 static vec
<char_p
> linker_options
;
1128 /* A vector of options to give to the assembler.
1129 These options are accumulated by -Wa,
1130 and substituted into the assembler command with %Y. */
1131 static vec
<char_p
> assembler_options
;
1133 /* A vector of options to give to the preprocessor.
1134 These options are accumulated by -Wp,
1135 and substituted into the preprocessor command with %Z. */
1136 static vec
<char_p
> preprocessor_options
;
1139 skip_whitespace (char *p
)
1143 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1144 be considered whitespace. */
1145 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1147 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1161 /* Structures to keep track of prefixes to try when looking for files. */
1165 const char *prefix
; /* String to prepend to the path. */
1166 struct prefix_list
*next
; /* Next in linked list. */
1167 int require_machine_suffix
; /* Don't use without machine_suffix. */
1168 /* 2 means try both machine_suffix and just_machine_suffix. */
1169 int priority
; /* Sort key - priority within list. */
1170 int os_multilib
; /* 1 if OS multilib scheme should be used,
1171 0 for GCC multilib scheme. */
1176 struct prefix_list
*plist
; /* List of prefixes to try */
1177 int max_len
; /* Max length of a prefix in PLIST */
1178 const char *name
; /* Name of this list (used in config stuff) */
1181 /* List of prefixes to try when looking for executables. */
1183 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1185 /* List of prefixes to try when looking for startup (crt0) files. */
1187 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1189 /* List of prefixes to try when looking for include files. */
1191 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1193 /* Suffix to attach to directories searched for commands.
1194 This looks like `MACHINE/VERSION/'. */
1196 static const char *machine_suffix
= 0;
1198 /* Suffix to attach to directories searched for commands.
1199 This is just `MACHINE/'. */
1201 static const char *just_machine_suffix
= 0;
1203 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1205 static const char *gcc_exec_prefix
;
1207 /* Adjusted value of standard_libexec_prefix. */
1209 static const char *gcc_libexec_prefix
;
1211 /* Default prefixes to attach to command names. */
1213 #ifndef STANDARD_STARTFILE_PREFIX_1
1214 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1216 #ifndef STANDARD_STARTFILE_PREFIX_2
1217 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1220 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1221 #undef MD_EXEC_PREFIX
1222 #undef MD_STARTFILE_PREFIX
1223 #undef MD_STARTFILE_PREFIX_1
1226 /* If no prefixes defined, use the null string, which will disable them. */
1227 #ifndef MD_EXEC_PREFIX
1228 #define MD_EXEC_PREFIX ""
1230 #ifndef MD_STARTFILE_PREFIX
1231 #define MD_STARTFILE_PREFIX ""
1233 #ifndef MD_STARTFILE_PREFIX_1
1234 #define MD_STARTFILE_PREFIX_1 ""
1237 /* These directories are locations set at configure-time based on the
1238 --prefix option provided to configure. Their initializers are
1239 defined in Makefile.in. These paths are not *directly* used when
1240 gcc_exec_prefix is set because, in that case, we know where the
1241 compiler has been installed, and use paths relative to that
1242 location instead. */
1243 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1244 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1245 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1246 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1248 /* For native compilers, these are well-known paths containing
1249 components that may be provided by the system. For cross
1250 compilers, these paths are not used. */
1251 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1252 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1253 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1254 static const char *const standard_startfile_prefix_1
1255 = STANDARD_STARTFILE_PREFIX_1
;
1256 static const char *const standard_startfile_prefix_2
1257 = STANDARD_STARTFILE_PREFIX_2
;
1259 /* A relative path to be used in finding the location of tools
1260 relative to the driver. */
1261 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1263 /* Subdirectory to use for locating libraries. Set by
1264 set_multilib_dir based on the compilation options. */
1266 static const char *multilib_dir
;
1268 /* Subdirectory to use for locating libraries in OS conventions. Set by
1269 set_multilib_dir based on the compilation options. */
1271 static const char *multilib_os_dir
;
1273 /* Subdirectory to use for locating libraries in multiarch conventions. Set by
1274 set_multilib_dir based on the compilation options. */
1276 static const char *multiarch_dir
;
1278 /* Structure to keep track of the specs that have been defined so far.
1279 These are accessed using %(specname) in a compiler or link
1284 /* The following 2 fields must be first */
1285 /* to allow EXTRA_SPECS to be initialized */
1286 const char *name
; /* name of the spec. */
1287 const char *ptr
; /* available ptr if no static pointer */
1289 /* The following fields are not initialized */
1290 /* by EXTRA_SPECS */
1291 const char **ptr_spec
; /* pointer to the spec itself. */
1292 struct spec_list
*next
; /* Next spec in linked list. */
1293 int name_len
; /* length of the name */
1294 bool user_p
; /* whether string come from file spec. */
1295 bool alloc_p
; /* whether string was allocated */
1298 #define INIT_STATIC_SPEC(NAME,PTR) \
1299 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, false, false }
1301 /* List of statically defined specs. */
1302 static struct spec_list static_specs
[] =
1304 INIT_STATIC_SPEC ("asm", &asm_spec
),
1305 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1306 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1307 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1308 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1309 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1310 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1311 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1312 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1313 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1314 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1315 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1316 INIT_STATIC_SPEC ("upc_options", &upc_options
),
1317 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1318 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1319 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1320 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1321 INIT_STATIC_SPEC ("link", &link_spec
),
1322 INIT_STATIC_SPEC ("lib", &lib_spec
),
1323 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1324 INIT_STATIC_SPEC ("upc_crtbegin", &upc_crtbegin_spec
),
1325 INIT_STATIC_SPEC ("link_upc", &link_upc_spec
),
1326 INIT_STATIC_SPEC ("upc_crtend", &upc_crtend_spec
),
1327 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1328 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1329 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1330 INIT_STATIC_SPEC ("version", &compiler_version
),
1331 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1332 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1333 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1334 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1335 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1336 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1337 INIT_STATIC_SPEC ("multilib_reuse", &multilib_reuse
),
1338 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1339 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1340 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1341 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1342 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1343 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1344 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1345 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1346 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1347 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1348 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1349 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1350 INIT_STATIC_SPEC ("self_spec", &self_spec
),
1353 #ifdef EXTRA_SPECS /* additional specs needed */
1354 /* Structure to keep track of just the first two args of a spec_list.
1355 That is all that the EXTRA_SPECS macro gives us. */
1358 const char *const name
;
1359 const char *const ptr
;
1362 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1363 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1366 /* List of dynamically allocates specs that have been defined so far. */
1368 static struct spec_list
*specs
= (struct spec_list
*) 0;
1370 /* List of static spec functions. */
1372 static const struct spec_function static_spec_functions
[] =
1374 { "getenv", getenv_spec_function
},
1375 { "if-exists", if_exists_spec_function
},
1376 { "if-exists-else", if_exists_else_spec_function
},
1377 { "sanitize", sanitize_spec_function
},
1378 { "replace-outfile", replace_outfile_spec_function
},
1379 { "remove-outfile", remove_outfile_spec_function
},
1380 { "version-compare", version_compare_spec_function
},
1381 { "include", include_spec_function
},
1382 { "find-file", find_file_spec_function
},
1383 { "find-plugindir", find_plugindir_spec_function
},
1384 { "print-asm-header", print_asm_header_spec_function
},
1385 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1386 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1387 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1388 { "pass-through-libs", pass_through_libs_spec_func
},
1389 { "replace-extension", replace_extension_spec_func
},
1390 #ifdef EXTRA_SPEC_FUNCTIONS
1391 EXTRA_SPEC_FUNCTIONS
1396 static int processing_spec_function
;
1398 /* Add appropriate libgcc specs to OBSTACK, taking into account
1399 various permutations of -shared-libgcc, -shared, and such. */
1401 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1403 #ifndef USE_LD_AS_NEEDED
1404 #define USE_LD_AS_NEEDED 0
1408 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1409 const char *static_name
, const char *eh_name
)
1413 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1414 "%{!static:%{!static-libgcc:"
1415 #if USE_LD_AS_NEEDED
1416 "%{!shared-libgcc:",
1417 static_name
, " " LD_AS_NEEDED_OPTION
" ",
1418 shared_name
, " " LD_NO_AS_NEEDED_OPTION
1421 shared_name
, "%{!shared: ", static_name
, "}"
1425 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1426 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1430 "%{shared-libgcc:", shared_name
, "}"
1431 "%{!shared-libgcc:", static_name
, "}"
1434 "%{shared:", shared_name
, "}"
1439 obstack_grow (obstack
, buf
, strlen (buf
));
1442 #endif /* ENABLE_SHARED_LIBGCC */
1444 /* Initialize the specs lookup routines. */
1449 struct spec_list
*next
= (struct spec_list
*) 0;
1450 struct spec_list
*sl
= (struct spec_list
*) 0;
1454 return; /* Already initialized. */
1457 fnotice (stderr
, "Using built-in specs.\n");
1460 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1462 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1464 sl
= &extra_specs
[i
];
1465 sl
->name
= extra_specs_1
[i
].name
;
1466 sl
->ptr
= extra_specs_1
[i
].ptr
;
1468 sl
->name_len
= strlen (sl
->name
);
1469 sl
->ptr_spec
= &sl
->ptr
;
1474 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1476 sl
= &static_specs
[i
];
1481 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1482 /* ??? If neither -shared-libgcc nor --static-libgcc was
1483 seen, then we should be making an educated guess. Some proposed
1484 heuristics for ELF include:
1486 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1487 program will be doing dynamic loading, which will likely
1488 need the shared libgcc.
1490 (2) If "-ldl", then it's also a fair bet that we're doing
1493 (3) For each ET_DYN we're linking against (either through -lfoo
1494 or /some/path/foo.so), check to see whether it or one of
1495 its dependencies depends on a shared libgcc.
1499 If the runtime is fixed to look for program headers instead
1500 of calling __register_frame_info at all, for each object,
1501 use the shared libgcc if any EH symbol referenced.
1503 If crtstuff is fixed to not invoke __register_frame_info
1504 automatically, for each object, use the shared libgcc if
1505 any non-empty unwind section found.
1507 Doing any of this probably requires invoking an external program to
1508 do the actual object file scanning. */
1510 const char *p
= libgcc_spec
;
1513 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1514 when given the proper command line arguments. */
1517 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1519 init_gcc_specs (&obstack
,
1521 #ifdef USE_LIBUNWIND_EXCEPTIONS
1527 #ifdef USE_LIBUNWIND_EXCEPTIONS
1528 # ifdef HAVE_LD_STATIC_DYNAMIC
1529 " %{!static:" LD_STATIC_OPTION
"} -lunwind"
1530 " %{!static:" LD_DYNAMIC_OPTION
"}"
1540 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1542 /* Ug. We don't know shared library extensions. Hope that
1543 systems that use this form don't do shared libraries. */
1544 init_gcc_specs (&obstack
,
1548 #ifdef USE_LIBUNWIND_EXCEPTIONS
1557 obstack_1grow (&obstack
, *p
);
1558 in_sep
= (*p
== ' ');
1563 obstack_1grow (&obstack
, '\0');
1564 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1567 #ifdef USE_AS_TRADITIONAL_FORMAT
1568 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1570 static const char tf
[] = "--traditional-format ";
1571 obstack_grow (&obstack
, tf
, sizeof (tf
) - 1);
1572 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1573 asm_spec
= XOBFINISH (&obstack
, const char *);
1577 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \
1578 defined LINKER_HASH_STYLE
1579 # ifdef LINK_BUILDID_SPEC
1580 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1581 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof (LINK_BUILDID_SPEC
) - 1);
1583 # ifdef LINK_EH_SPEC
1584 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1585 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof (LINK_EH_SPEC
) - 1);
1587 # ifdef LINKER_HASH_STYLE
1588 /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had
1591 static const char hash_style
[] = "--hash-style=";
1592 obstack_grow (&obstack
, hash_style
, sizeof (hash_style
) - 1);
1593 obstack_grow (&obstack
, LINKER_HASH_STYLE
, sizeof (LINKER_HASH_STYLE
) - 1);
1594 obstack_1grow (&obstack
, ' ');
1597 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1598 link_spec
= XOBFINISH (&obstack
, const char *);
1604 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1605 removed; If the spec starts with a + then SPEC is added to the end of the
1609 set_spec (const char *name
, const char *spec
, bool user_p
)
1611 struct spec_list
*sl
;
1612 const char *old_spec
;
1613 int name_len
= strlen (name
);
1616 /* If this is the first call, initialize the statically allocated specs. */
1619 struct spec_list
*next
= (struct spec_list
*) 0;
1620 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1622 sl
= &static_specs
[i
];
1629 /* See if the spec already exists. */
1630 for (sl
= specs
; sl
; sl
= sl
->next
)
1631 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1636 /* Not found - make it. */
1637 sl
= XNEW (struct spec_list
);
1638 sl
->name
= xstrdup (name
);
1639 sl
->name_len
= name_len
;
1640 sl
->ptr_spec
= &sl
->ptr
;
1642 *(sl
->ptr_spec
) = "";
1647 old_spec
= *(sl
->ptr_spec
);
1648 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1649 ? concat (old_spec
, spec
+ 1, NULL
)
1654 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1657 /* Free the old spec. */
1658 if (old_spec
&& sl
->alloc_p
)
1659 free (CONST_CAST (char *, old_spec
));
1661 sl
->user_p
= user_p
;
1665 /* Accumulate a command (program name and args), and run it. */
1667 typedef const char *const_char_p
; /* For DEF_VEC_P. */
1669 /* Vector of pointers to arguments in the current line of specifications. */
1671 static vec
<const_char_p
> argbuf
;
1673 /* Position in the argbuf vector containing the name of the output file
1674 (the value associated with the "-o" flag). */
1676 static int have_o_argbuf_index
= 0;
1678 /* Were the options -c, -S or -E passed. */
1679 static int have_c
= 0;
1681 /* Was the option -o passed. */
1682 static int have_o
= 0;
1684 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1685 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1688 static struct temp_name
{
1689 const char *suffix
; /* suffix associated with the code. */
1690 int length
; /* strlen (suffix). */
1691 int unique
; /* Indicates whether %g or %u/%U was used. */
1692 const char *filename
; /* associated filename. */
1693 int filename_length
; /* strlen (filename). */
1694 struct temp_name
*next
;
1697 /* Number of commands executed so far. */
1699 static int execution_count
;
1701 /* Number of commands that exited with a signal. */
1703 static int signal_count
;
1705 /* Allocate the argument vector. */
1713 /* Clear out the vector of arguments (after a command is executed). */
1718 argbuf
.truncate (0);
1721 /* Add one argument to the vector at the end.
1722 This is done when a space is seen or at the end of the line.
1723 If DELETE_ALWAYS is nonzero, the arg is a filename
1724 and the file should be deleted eventually.
1725 If DELETE_FAILURE is nonzero, the arg is a filename
1726 and the file should be deleted if this compilation fails. */
1729 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1731 argbuf
.safe_push (arg
);
1733 if (strcmp (arg
, "-o") == 0)
1734 have_o_argbuf_index
= argbuf
.length ();
1735 if (delete_always
|| delete_failure
)
1738 /* If the temporary file we should delete is specified as
1739 part of a joined argument extract the filename. */
1741 && (p
= strrchr (arg
, '=')))
1743 record_temp_file (arg
, delete_always
, delete_failure
);
1747 /* Load specs from a file name named FILENAME, replacing occurrences of
1748 various different types of line-endings, \r\n, \n\r and just \r, with
1752 load_specs (const char *filename
)
1756 struct stat statbuf
;
1763 fnotice (stderr
, "Reading specs from %s\n", filename
);
1765 /* Open and stat the file. */
1766 desc
= open (filename
, O_RDONLY
, 0);
1768 pfatal_with_name (filename
);
1769 if (stat (filename
, &statbuf
) < 0)
1770 pfatal_with_name (filename
);
1772 /* Read contents of file into BUFFER. */
1773 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
1774 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1776 pfatal_with_name (filename
);
1777 buffer
[readlen
] = 0;
1780 specs
= XNEWVEC (char, readlen
+ 1);
1782 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1788 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1790 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1804 /* Read compilation specs from a file named FILENAME,
1805 replacing the default ones.
1807 A suffix which starts with `*' is a definition for
1808 one of the machine-specific sub-specs. The "suffix" should be
1809 *asm, *cc1, *cpp, *link, *startfile, etc.
1810 The corresponding spec is stored in asm_spec, etc.,
1811 rather than in the `compilers' vector.
1813 Anything invalid in the file is a fatal error. */
1816 read_specs (const char *filename
, bool main_p
, bool user_p
)
1821 buffer
= load_specs (filename
);
1823 /* Scan BUFFER for specs, putting them in the vector. */
1829 char *in
, *out
, *p1
, *p2
, *p3
;
1831 /* Advance P in BUFFER to the next nonblank nocomment line. */
1832 p
= skip_whitespace (p
);
1836 /* Is this a special command that starts with '%'? */
1837 /* Don't allow this for the main specs file, since it would
1838 encourage people to overwrite it. */
1839 if (*p
== '%' && !main_p
)
1842 while (*p
&& *p
!= '\n')
1848 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1849 && (p1
[sizeof "%include" - 1] == ' '
1850 || p1
[sizeof "%include" - 1] == '\t'))
1854 p1
+= sizeof ("%include");
1855 while (*p1
== ' ' || *p1
== '\t')
1858 if (*p1
++ != '<' || p
[-2] != '>')
1859 fatal_error ("specs %%include syntax malformed after "
1861 (long) (p1
- buffer
+ 1));
1864 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1865 read_specs (new_filename
? new_filename
: p1
, false, user_p
);
1868 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1869 && (p1
[sizeof "%include_noerr" - 1] == ' '
1870 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1874 p1
+= sizeof "%include_noerr";
1875 while (*p1
== ' ' || *p1
== '\t')
1878 if (*p1
++ != '<' || p
[-2] != '>')
1879 fatal_error ("specs %%include syntax malformed after "
1881 (long) (p1
- buffer
+ 1));
1884 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1886 read_specs (new_filename
, false, user_p
);
1887 else if (verbose_flag
)
1888 fnotice (stderr
, "could not find specs file %s\n", p1
);
1891 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1892 && (p1
[sizeof "%rename" - 1] == ' '
1893 || p1
[sizeof "%rename" - 1] == '\t'))
1896 struct spec_list
*sl
;
1897 struct spec_list
*newsl
;
1899 /* Get original name. */
1900 p1
+= sizeof "%rename";
1901 while (*p1
== ' ' || *p1
== '\t')
1904 if (! ISALPHA ((unsigned char) *p1
))
1905 fatal_error ("specs %%rename syntax malformed after "
1907 (long) (p1
- buffer
));
1910 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1913 if (*p2
!= ' ' && *p2
!= '\t')
1914 fatal_error ("specs %%rename syntax malformed after "
1916 (long) (p2
- buffer
));
1920 while (*p2
== ' ' || *p2
== '\t')
1923 if (! ISALPHA ((unsigned char) *p2
))
1924 fatal_error ("specs %%rename syntax malformed after "
1926 (long) (p2
- buffer
));
1928 /* Get new spec name. */
1930 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
1934 fatal_error ("specs %%rename syntax malformed after "
1936 (long) (p3
- buffer
));
1939 for (sl
= specs
; sl
; sl
= sl
->next
)
1940 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1944 fatal_error ("specs %s spec was not found to be renamed", p1
);
1946 if (strcmp (p1
, p2
) == 0)
1949 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
1950 if (strcmp (newsl
->name
, p2
) == 0)
1951 fatal_error ("%s: attempt to rename spec %qs to "
1952 "already defined spec %qs",
1957 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
1959 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
1963 set_spec (p2
, *(sl
->ptr_spec
), user_p
);
1965 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
1967 *(sl
->ptr_spec
) = "";
1972 fatal_error ("specs unknown %% command after %ld characters",
1973 (long) (p1
- buffer
));
1976 /* Find the colon that should end the suffix. */
1978 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1981 /* The colon shouldn't be missing. */
1983 fatal_error ("specs file malformed after %ld characters",
1984 (long) (p1
- buffer
));
1986 /* Skip back over trailing whitespace. */
1988 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1991 /* Copy the suffix to a string. */
1992 suffix
= save_string (p
, p2
- p
);
1993 /* Find the next line. */
1994 p
= skip_whitespace (p1
+ 1);
1996 fatal_error ("specs file malformed after %ld characters",
1997 (long) (p
- buffer
));
2000 /* Find next blank line or end of string. */
2001 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2004 /* Specs end at the blank line and do not include the newline. */
2005 spec
= save_string (p
, p1
- p
);
2008 /* Delete backslash-newline sequences from the spec. */
2013 if (in
[0] == '\\' && in
[1] == '\n')
2015 else if (in
[0] == '#')
2016 while (*in
&& *in
!= '\n')
2024 if (suffix
[0] == '*')
2026 if (! strcmp (suffix
, "*link_command"))
2027 link_command_spec
= spec
;
2029 set_spec (suffix
+ 1, spec
, user_p
);
2033 /* Add this pair to the vector. */
2035 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2037 compilers
[n_compilers
].suffix
= suffix
;
2038 compilers
[n_compilers
].spec
= spec
;
2040 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2044 link_command_spec
= spec
;
2047 if (link_command_spec
== 0)
2048 fatal_error ("spec file has no spec for linking");
2051 /* Record the names of temporary files we tell compilers to write,
2052 and delete them at the end of the run. */
2054 /* This is the common prefix we use to make temp file names.
2055 It is chosen once for each run of this program.
2056 It is substituted into a spec by %g or %j.
2057 Thus, all temp file names contain this prefix.
2058 In practice, all temp file names start with this prefix.
2060 This prefix comes from the envvar TMPDIR if it is defined;
2061 otherwise, from the P_tmpdir macro if that is defined;
2062 otherwise, in /usr/tmp or /tmp;
2063 or finally the current directory if all else fails. */
2065 static const char *temp_filename
;
2067 /* Length of the prefix. */
2069 static int temp_filename_length
;
2071 /* Define the list of temporary files to delete. */
2076 struct temp_file
*next
;
2079 /* Queue of files to delete on success or failure of compilation. */
2080 static struct temp_file
*always_delete_queue
;
2081 /* Queue of files to delete on failure of compilation. */
2082 static struct temp_file
*failure_delete_queue
;
2084 /* Record FILENAME as a file to be deleted automatically.
2085 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2086 otherwise delete it in any case.
2087 FAIL_DELETE nonzero means delete it if a compilation step fails;
2088 otherwise delete it in any case. */
2091 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2093 char *const name
= xstrdup (filename
);
2097 struct temp_file
*temp
;
2098 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2099 if (! filename_cmp (name
, temp
->name
))
2102 temp
= XNEW (struct temp_file
);
2103 temp
->next
= always_delete_queue
;
2105 always_delete_queue
= temp
;
2112 struct temp_file
*temp
;
2113 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2114 if (! filename_cmp (name
, temp
->name
))
2120 temp
= XNEW (struct temp_file
);
2121 temp
->next
= failure_delete_queue
;
2123 failure_delete_queue
= temp
;
2129 /* Delete all the temporary files whose names we previously recorded. */
2131 #ifndef DELETE_IF_ORDINARY
2132 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2135 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2136 if (unlink (NAME) < 0) \
2138 perror_with_name (NAME); \
2143 delete_if_ordinary (const char *name
)
2149 printf ("Delete %s? (y or n) ", name
);
2153 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2156 if (i
== 'y' || i
== 'Y')
2158 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2162 delete_temp_files (void)
2164 struct temp_file
*temp
;
2166 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2167 delete_if_ordinary (temp
->name
);
2168 always_delete_queue
= 0;
2171 /* Delete all the files to be deleted on error. */
2174 delete_failure_queue (void)
2176 struct temp_file
*temp
;
2178 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2179 delete_if_ordinary (temp
->name
);
2183 clear_failure_queue (void)
2185 failure_delete_queue
= 0;
2188 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2190 If DO_MULTI is true iterate over the paths twice, first with multilib
2191 suffix then without, otherwise iterate over the paths once without
2192 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2193 to avoid visiting the same path twice, but we could do better. For
2194 instance, /usr/lib/../lib is considered different from /usr/lib.
2195 At least EXTRA_SPACE chars past the end of the path passed to
2196 CALLBACK are available for use by the callback.
2197 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2199 Returns the value returned by CALLBACK. */
2202 for_each_path (const struct path_prefix
*paths
,
2205 void *(*callback
) (char *, void *),
2206 void *callback_info
)
2208 struct prefix_list
*pl
;
2209 const char *multi_dir
= NULL
;
2210 const char *multi_os_dir
= NULL
;
2211 const char *multiarch_suffix
= NULL
;
2212 const char *multi_suffix
;
2213 const char *just_multi_suffix
;
2216 bool skip_multi_dir
= false;
2217 bool skip_multi_os_dir
= false;
2219 multi_suffix
= machine_suffix
;
2220 just_multi_suffix
= just_machine_suffix
;
2221 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2223 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2224 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2225 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2227 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2228 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2230 multiarch_suffix
= concat (multiarch_dir
, dir_separator_str
, NULL
);
2234 size_t multi_dir_len
= 0;
2235 size_t multi_os_dir_len
= 0;
2236 size_t multiarch_len
= 0;
2238 size_t just_suffix_len
;
2242 multi_dir_len
= strlen (multi_dir
);
2244 multi_os_dir_len
= strlen (multi_os_dir
);
2245 if (multiarch_suffix
)
2246 multiarch_len
= strlen (multiarch_suffix
);
2247 suffix_len
= strlen (multi_suffix
);
2248 just_suffix_len
= strlen (just_multi_suffix
);
2252 len
= paths
->max_len
+ extra_space
+ 1;
2253 len
+= MAX (MAX (suffix_len
, multi_os_dir_len
), multiarch_len
);
2254 path
= XNEWVEC (char, len
);
2257 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2259 len
= strlen (pl
->prefix
);
2260 memcpy (path
, pl
->prefix
, len
);
2262 /* Look first in MACHINE/VERSION subdirectory. */
2263 if (!skip_multi_dir
)
2265 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2266 ret
= callback (path
, callback_info
);
2271 /* Some paths are tried with just the machine (ie. target)
2272 subdir. This is used for finding as, ld, etc. */
2274 && pl
->require_machine_suffix
== 2)
2276 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2277 ret
= callback (path
, callback_info
);
2282 /* Now try the multiarch path. */
2284 && !pl
->require_machine_suffix
&& multiarch_dir
)
2286 memcpy (path
+ len
, multiarch_suffix
, multiarch_len
+ 1);
2287 ret
= callback (path
, callback_info
);
2292 /* Now try the base path. */
2293 if (!pl
->require_machine_suffix
2294 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2296 const char *this_multi
;
2297 size_t this_multi_len
;
2299 if (pl
->os_multilib
)
2301 this_multi
= multi_os_dir
;
2302 this_multi_len
= multi_os_dir_len
;
2306 this_multi
= multi_dir
;
2307 this_multi_len
= multi_dir_len
;
2311 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2315 ret
= callback (path
, callback_info
);
2323 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2326 /* Run through the paths again, this time without multilibs.
2327 Don't repeat any we have already seen. */
2330 free (CONST_CAST (char *, multi_dir
));
2332 free (CONST_CAST (char *, multi_suffix
));
2333 multi_suffix
= machine_suffix
;
2334 free (CONST_CAST (char *, just_multi_suffix
));
2335 just_multi_suffix
= just_machine_suffix
;
2338 skip_multi_dir
= true;
2341 free (CONST_CAST (char *, multi_os_dir
));
2342 multi_os_dir
= NULL
;
2345 skip_multi_os_dir
= true;
2350 free (CONST_CAST (char *, multi_dir
));
2351 free (CONST_CAST (char *, multi_suffix
));
2352 free (CONST_CAST (char *, just_multi_suffix
));
2355 free (CONST_CAST (char *, multi_os_dir
));
2361 /* Callback for build_search_list. Adds path to obstack being built. */
2363 struct add_to_obstack_info
{
2370 add_to_obstack (char *path
, void *data
)
2372 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2374 if (info
->check_dir
&& !is_directory (path
, false))
2377 if (!info
->first_time
)
2378 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2380 obstack_grow (info
->ob
, path
, strlen (path
));
2382 info
->first_time
= false;
2386 /* Add or change the value of an environment variable, outputting the
2387 change to standard error if in verbose mode. */
2389 xputenv (const char *string
)
2392 fnotice (stderr
, "%s\n", string
);
2393 putenv (CONST_CAST (char *, string
));
2396 /* Build a list of search directories from PATHS.
2397 PREFIX is a string to prepend to the list.
2398 If CHECK_DIR_P is true we ensure the directory exists.
2399 If DO_MULTI is true, multilib paths are output first, then
2401 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2402 It is also used by the --print-search-dirs flag. */
2405 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2406 bool check_dir
, bool do_multi
)
2408 struct add_to_obstack_info info
;
2410 info
.ob
= &collect_obstack
;
2411 info
.check_dir
= check_dir
;
2412 info
.first_time
= true;
2414 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2415 obstack_1grow (&collect_obstack
, '=');
2417 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2419 obstack_1grow (&collect_obstack
, '\0');
2420 return XOBFINISH (&collect_obstack
, char *);
2423 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2427 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2430 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2433 /* Check whether NAME can be accessed in MODE. This is like access,
2434 except that it never considers directories to be executable. */
2437 access_check (const char *name
, int mode
)
2443 if (stat (name
, &st
) < 0
2444 || S_ISDIR (st
.st_mode
))
2448 return access (name
, mode
);
2451 /* Callback for find_a_file. Appends the file name to the directory
2452 path. If the resulting file exists in the right mode, return the
2453 full pathname to the file. */
2455 struct file_at_path_info
{
2464 file_at_path (char *path
, void *data
)
2466 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2467 size_t len
= strlen (path
);
2469 memcpy (path
+ len
, info
->name
, info
->name_len
);
2470 len
+= info
->name_len
;
2472 /* Some systems have a suffix for executable files.
2473 So try appending that first. */
2474 if (info
->suffix_len
)
2476 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2477 if (access_check (path
, info
->mode
) == 0)
2482 if (access_check (path
, info
->mode
) == 0)
2488 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2489 access to check permissions. If DO_MULTI is true, search multilib
2490 paths then non-multilib paths, otherwise do not search multilib paths.
2491 Return 0 if not found, otherwise return its name, allocated with malloc. */
2494 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2497 struct file_at_path_info info
;
2499 #ifdef DEFAULT_ASSEMBLER
2500 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2501 return xstrdup (DEFAULT_ASSEMBLER
);
2504 #ifdef DEFAULT_LINKER
2505 if (! strcmp (name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2506 return xstrdup (DEFAULT_LINKER
);
2509 /* Determine the filename to execute (special case for absolute paths). */
2511 if (IS_ABSOLUTE_PATH (name
))
2513 if (access (name
, mode
) == 0)
2514 return xstrdup (name
);
2520 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2521 info
.name_len
= strlen (info
.name
);
2522 info
.suffix_len
= strlen (info
.suffix
);
2525 return (char*) for_each_path (pprefix
, do_multi
,
2526 info
.name_len
+ info
.suffix_len
,
2527 file_at_path
, &info
);
2530 /* Ranking of prefixes in the sort list. -B prefixes are put before
2533 enum path_prefix_priority
2535 PREFIX_PRIORITY_B_OPT
,
2536 PREFIX_PRIORITY_LAST
2539 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2540 order according to PRIORITY. Within each PRIORITY, new entries are
2543 If WARN is nonzero, we will warn if no file is found
2544 through this prefix. WARN should point to an int
2545 which will be set to 1 if this entry is used.
2547 COMPONENT is the value to be passed to update_path.
2549 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2550 the complete value of machine_suffix.
2551 2 means try both machine_suffix and just_machine_suffix. */
2554 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2555 const char *component
, /* enum prefix_priority */ int priority
,
2556 int require_machine_suffix
, int os_multilib
)
2558 struct prefix_list
*pl
, **prev
;
2561 for (prev
= &pprefix
->plist
;
2562 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2563 prev
= &(*prev
)->next
)
2566 /* Keep track of the longest prefix. */
2568 prefix
= update_path (prefix
, component
);
2569 len
= strlen (prefix
);
2570 if (len
> pprefix
->max_len
)
2571 pprefix
->max_len
= len
;
2573 pl
= XNEW (struct prefix_list
);
2574 pl
->prefix
= prefix
;
2575 pl
->require_machine_suffix
= require_machine_suffix
;
2576 pl
->priority
= priority
;
2577 pl
->os_multilib
= os_multilib
;
2579 /* Insert after PREV. */
2584 /* Same as add_prefix, but prepending target_system_root to prefix. */
2585 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2587 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2588 const char *component
,
2589 /* enum prefix_priority */ int priority
,
2590 int require_machine_suffix
, int os_multilib
)
2592 if (!IS_ABSOLUTE_PATH (prefix
))
2593 fatal_error ("system path %qs is not absolute", prefix
);
2595 if (target_system_root
)
2597 char *sysroot_no_trailing_dir_separator
= xstrdup (target_system_root
);
2598 size_t sysroot_len
= strlen (target_system_root
);
2601 && target_system_root
[sysroot_len
- 1] == DIR_SEPARATOR
)
2602 sysroot_no_trailing_dir_separator
[sysroot_len
- 1] = '\0';
2604 if (target_sysroot_suffix
)
2605 prefix
= concat (sysroot_no_trailing_dir_separator
,
2606 target_sysroot_suffix
, prefix
, NULL
);
2608 prefix
= concat (sysroot_no_trailing_dir_separator
, prefix
, NULL
);
2610 free (sysroot_no_trailing_dir_separator
);
2612 /* We have to override this because GCC's notion of sysroot
2613 moves along with GCC. */
2617 add_prefix (pprefix
, prefix
, component
, priority
,
2618 require_machine_suffix
, os_multilib
);
2621 /* Execute the command specified by the arguments on the current line of spec.
2622 When using pipes, this includes several piped-together commands
2623 with `|' between them.
2625 Return 0 if successful, -1 if failed. */
2631 int n_commands
; /* # of command. */
2633 struct pex_obj
*pex
;
2636 const char *prog
; /* program name. */
2637 const char **argv
; /* vector of args. */
2641 struct command
*commands
; /* each command buffer with above info. */
2643 gcc_assert (!processing_spec_function
);
2647 string
= find_a_file (&exec_prefixes
,
2648 argbuf
[0], X_OK
, false);
2651 insert_wrapper (wrapper_string
);
2654 /* Count # of piped commands. */
2655 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2656 if (strcmp (arg
, "|") == 0)
2659 /* Get storage for each command. */
2660 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2662 /* Split argbuf into its separate piped processes,
2663 and record info about each one.
2664 Also search for the programs that are to be run. */
2666 argbuf
.safe_push (0);
2668 commands
[0].prog
= argbuf
[0]; /* first command. */
2669 commands
[0].argv
= argbuf
.address ();
2671 if (!wrapper_string
)
2673 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2674 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2677 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2678 if (arg
&& strcmp (arg
, "|") == 0)
2679 { /* each command. */
2680 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2681 fatal_error ("-pipe not supported");
2683 argbuf
[i
] = 0; /* Termination of
2685 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2686 commands
[n_commands
].argv
2687 = &(argbuf
.address ())[i
+ 1];
2688 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2691 commands
[n_commands
].argv
[0] = string
;
2695 /* If -v, print what we are about to do, and maybe query. */
2699 /* For help listings, put a blank line between sub-processes. */
2700 if (print_help_list
)
2701 fputc ('\n', stderr
);
2703 /* Print each piped command as a separate line. */
2704 for (i
= 0; i
< n_commands
; i
++)
2706 const char *const *j
;
2708 if (verbose_only_flag
)
2710 for (j
= commands
[i
].argv
; *j
; j
++)
2713 for (p
= *j
; *p
; ++p
)
2714 if (!ISALNUM ((unsigned char) *p
)
2715 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
2719 fprintf (stderr
, " \"");
2720 for (p
= *j
; *p
; ++p
)
2722 if (*p
== '"' || *p
== '\\' || *p
== '$')
2723 fputc ('\\', stderr
);
2726 fputc ('"', stderr
);
2728 /* If it's empty, print "". */
2730 fprintf (stderr
, " \"\"");
2732 fprintf (stderr
, " %s", *j
);
2736 for (j
= commands
[i
].argv
; *j
; j
++)
2737 /* If it's empty, print "". */
2739 fprintf (stderr
, " \"\"");
2741 fprintf (stderr
, " %s", *j
);
2743 /* Print a pipe symbol after all but the last command. */
2744 if (i
+ 1 != n_commands
)
2745 fprintf (stderr
, " |");
2746 fprintf (stderr
, "\n");
2749 if (verbose_only_flag
!= 0)
2751 /* verbose_only_flag should act as if the spec was
2752 executed, so increment execution_count before
2753 returning. This prevents spurious warnings about
2754 unused linker input files, etc. */
2759 fnotice (stderr
, "\nGo ahead? (y or n) ");
2763 while (getchar () != '\n')
2766 if (i
!= 'y' && i
!= 'Y')
2771 #ifdef ENABLE_VALGRIND_CHECKING
2772 /* Run the each command through valgrind. To simplify prepending the
2773 path to valgrind and the option "-q" (for quiet operation unless
2774 something triggers), we allocate a separate argv array. */
2776 for (i
= 0; i
< n_commands
; i
++)
2782 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2785 argv
= XALLOCAVEC (const char *, argc
+ 3);
2787 argv
[0] = VALGRIND_PATH
;
2789 for (j
= 2; j
< argc
+ 2; j
++)
2790 argv
[j
] = commands
[i
].argv
[j
- 2];
2793 commands
[i
].argv
= argv
;
2794 commands
[i
].prog
= argv
[0];
2798 /* Run each piped subprocess. */
2800 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
2801 ? PEX_RECORD_TIMES
: 0),
2802 progname
, temp_filename
);
2804 fatal_error ("pex_init failed: %m");
2806 for (i
= 0; i
< n_commands
; i
++)
2810 const char *string
= commands
[i
].argv
[0];
2812 errmsg
= pex_run (pex
,
2813 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
2814 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
2815 string
, CONST_CAST (char **, commands
[i
].argv
),
2820 fatal_error (errmsg
);
2824 pfatal_with_name (errmsg
);
2828 if (string
!= commands
[i
].prog
)
2829 free (CONST_CAST (char *, string
));
2834 /* Wait for all the subprocesses to finish. */
2838 struct pex_time
*times
= NULL
;
2841 statuses
= (int *) alloca (n_commands
* sizeof (int));
2842 if (!pex_get_status (pex
, n_commands
, statuses
))
2843 fatal_error ("failed to get exit status: %m");
2845 if (report_times
|| report_times_to_file
)
2847 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
2848 if (!pex_get_times (pex
, n_commands
, times
))
2849 fatal_error ("failed to get process times: %m");
2854 for (i
= 0; i
< n_commands
; ++i
)
2856 int status
= statuses
[i
];
2858 if (WIFSIGNALED (status
))
2861 /* SIGPIPE is a special case. It happens in -pipe mode
2862 when the compiler dies before the preprocessor is done,
2863 or the assembler dies before the compiler is done.
2864 There's generally been an error already, and this is
2865 just fallout. So don't generate another error unless
2866 we would otherwise have succeeded. */
2867 if (WTERMSIG (status
) == SIGPIPE
2868 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2875 internal_error ("%s (program %s)",
2876 strsignal (WTERMSIG (status
)), commands
[i
].prog
);
2878 else if (WIFEXITED (status
)
2879 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2881 if (WEXITSTATUS (status
) > greatest_status
)
2882 greatest_status
= WEXITSTATUS (status
);
2886 if (report_times
|| report_times_to_file
)
2888 struct pex_time
*pt
= ×
[i
];
2891 ut
= ((double) pt
->user_seconds
2892 + (double) pt
->user_microseconds
/ 1.0e6
);
2893 st
= ((double) pt
->system_seconds
2894 + (double) pt
->system_microseconds
/ 1.0e6
);
2899 fnotice (stderr
, "# %s %.2f %.2f\n",
2900 commands
[i
].prog
, ut
, st
);
2902 if (report_times_to_file
)
2905 const char *const *j
;
2907 fprintf (report_times_to_file
, "%g %g", ut
, st
);
2909 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
2912 for (p
= *j
; *p
; ++p
)
2913 if (*p
== '"' || *p
== '\\' || *p
== '$'
2919 fprintf (report_times_to_file
, " \"");
2920 for (p
= *j
; *p
; ++p
)
2922 if (*p
== '"' || *p
== '\\' || *p
== '$')
2923 fputc ('\\', report_times_to_file
);
2924 fputc (*p
, report_times_to_file
);
2926 fputc ('"', report_times_to_file
);
2929 fprintf (report_times_to_file
, " %s", *j
);
2932 fputc ('\n', report_times_to_file
);
2942 /* Find all the switches given to us
2943 and make a vector describing them.
2944 The elements of the vector are strings, one per switch given.
2945 If a switch uses following arguments, then the `part1' field
2946 is the switch itself and the `args' field
2947 is a null-terminated vector containing the following arguments.
2948 Bits in the `live_cond' field are:
2949 SWITCH_LIVE to indicate this switch is true in a conditional spec.
2950 SWITCH_FALSE to indicate this switch is overridden by a later switch.
2951 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
2952 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored
2953 in all do_spec calls afterwards. Used for %<S from self specs.
2954 The `validated' field is nonzero if any spec has looked at this switch;
2955 if it remains zero at the end of the run, it must be meaningless. */
2957 #define SWITCH_LIVE (1 << 0)
2958 #define SWITCH_FALSE (1 << 1)
2959 #define SWITCH_IGNORE (1 << 2)
2960 #define SWITCH_IGNORE_PERMANENTLY (1 << 3)
2961 #define SWITCH_KEEP_FOR_GCC (1 << 4)
2967 unsigned int live_cond
;
2973 static struct switchstr
*switches
;
2975 static int n_switches
;
2977 static int n_switches_alloc
;
2979 /* Set to zero if -fcompare-debug is disabled, positive if it's
2980 enabled and we're running the first compilation, negative if it's
2981 enabled and we're running the second compilation. For most of the
2982 time, it's in the range -1..1, but it can be temporarily set to 2
2983 or 3 to indicate that the -fcompare-debug flags didn't come from
2984 the command-line, but rather from the GCC_COMPARE_DEBUG environment
2985 variable, until a synthesized -fcompare-debug flag is added to the
2989 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
2990 int compare_debug_second
;
2992 /* Set to the flags that should be passed to the second compilation in
2993 a -fcompare-debug compilation. */
2994 const char *compare_debug_opt
;
2996 static struct switchstr
*switches_debug_check
[2];
2998 static int n_switches_debug_check
[2];
3000 static int n_switches_alloc_debug_check
[2];
3002 static char *debug_check_temp_file
[2];
3004 /* Language is one of three things:
3006 1) The name of a real programming language.
3007 2) NULL, indicating that no one has figured out
3009 3) '*', indicating that the file should be passed
3014 const char *language
;
3015 struct compiler
*incompiler
;
3020 /* Also a vector of input files specified. */
3022 static struct infile
*infiles
;
3026 static int n_infiles_alloc
;
3028 /* True if multiple input files are being compiled to a single
3031 static bool combine_inputs
;
3033 /* This counts the number of libraries added by lang_specific_driver, so that
3034 we can tell if there were any user supplied any files or libraries. */
3036 static int added_libraries
;
3038 /* And a vector of corresponding output files is made up later. */
3040 const char **outfiles
;
3042 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3044 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3045 is true if we should look for an executable suffix. DO_OBJ
3046 is true if we should look for an object suffix. */
3049 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3050 int do_obj ATTRIBUTE_UNUSED
)
3052 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3060 len
= strlen (name
);
3062 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3063 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3064 if (do_obj
&& len
> 2
3065 && name
[len
- 2] == '.'
3066 && name
[len
- 1] == 'o')
3068 obstack_grow (&obstack
, name
, len
- 2);
3069 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3070 name
= XOBFINISH (&obstack
, const char *);
3074 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3075 /* If there is no filetype, make it the executable suffix (which includes
3076 the "."). But don't get confused if we have just "-o". */
3077 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3080 for (i
= len
- 1; i
>= 0; i
--)
3081 if (IS_DIR_SEPARATOR (name
[i
]))
3084 for (i
++; i
< len
; i
++)
3088 obstack_grow (&obstack
, name
, len
);
3089 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3090 strlen (TARGET_EXECUTABLE_SUFFIX
));
3091 name
= XOBFINISH (&obstack
, const char *);
3098 /* Display the command line switches accepted by gcc. */
3102 printf (_("Usage: %s [options] file...\n"), progname
);
3103 fputs (_("Options:\n"), stdout
);
3105 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3106 fputs (_(" --help Display this information\n"), stdout
);
3107 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3108 fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...]\n"), stdout
);
3109 fputs (_(" Display specific types of command line options\n"), stdout
);
3111 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3112 fputs (_(" --version Display compiler version information\n"), stdout
);
3113 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3114 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3115 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3116 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3117 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3118 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3119 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3121 -print-multiarch Display the target's normalized GNU triplet, used as\n\
3122 a component in the library path\n"), stdout
);
3123 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3125 -print-multi-lib Display the mapping between command line options and\n\
3126 multiple library search directories\n"), stdout
);
3127 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3128 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout
);
3129 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
3130 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3131 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3132 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3133 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3134 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3135 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3136 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3137 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout
);
3139 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3140 prefixes to other gcc components\n"), stdout
);
3141 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3142 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3143 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3144 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3146 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3147 and libraries\n"), stdout
);
3148 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3149 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3150 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3151 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3152 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3153 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3154 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3155 fputs (_(" -pie Create a position independent executable\n"), stdout
);
3156 fputs (_(" -shared Create a shared library\n"), stdout
);
3158 -x <language> Specify the language of the following input files\n\
3159 Permissible languages include: c c++ assembler none\n\
3160 'none' means revert to the default behavior of\n\
3161 guessing the language based on the file's extension\n\
3165 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3166 passed on to the various sub-processes invoked by %s. In order to pass\n\
3167 other options on to these processes the -W<letter> options must be used.\n\
3170 /* The rest of the options are displayed by invocations of the various
3175 add_preprocessor_option (const char *option
, int len
)
3177 preprocessor_options
.safe_push (save_string (option
, len
));
3181 add_assembler_option (const char *option
, int len
)
3183 assembler_options
.safe_push (save_string (option
, len
));
3187 add_linker_option (const char *option
, int len
)
3189 linker_options
.safe_push (save_string (option
, len
));
3192 /* Allocate space for an input file in infiles. */
3197 if (n_infiles_alloc
== 0)
3199 n_infiles_alloc
= 16;
3200 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3202 else if (n_infiles_alloc
== n_infiles
)
3204 n_infiles_alloc
*= 2;
3205 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3209 /* Store an input file with the given NAME and LANGUAGE in
3213 add_infile (const char *name
, const char *language
)
3216 infiles
[n_infiles
].name
= name
;
3217 infiles
[n_infiles
++].language
= language
;
3220 /* Allocate space for a switch in switches. */
3225 if (n_switches_alloc
== 0)
3227 n_switches_alloc
= 16;
3228 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3230 else if (n_switches_alloc
== n_switches
)
3232 n_switches_alloc
*= 2;
3233 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3237 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3238 as validated if VALIDATED and KNOWN if it is an internal switch. */
3241 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3242 bool validated
, bool known
)
3245 switches
[n_switches
].part1
= opt
+ 1;
3247 switches
[n_switches
].args
= 0;
3250 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3251 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3252 switches
[n_switches
].args
[n_args
] = NULL
;
3255 switches
[n_switches
].live_cond
= 0;
3256 switches
[n_switches
].validated
= validated
;
3257 switches
[n_switches
].known
= known
;
3258 switches
[n_switches
].ordering
= 0;
3262 /* Handle an option DECODED that is unknown to the option-processing
3266 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3268 const char *opt
= decoded
->arg
;
3269 if (opt
[1] == 'W' && opt
[2] == 'n' && opt
[3] == 'o' && opt
[4] == '-'
3270 && !(decoded
->errors
& CL_ERR_NEGATIVE
))
3272 /* Leave unknown -Wno-* options for the compiler proper, to be
3273 diagnosed only if there are warnings. */
3274 save_switch (decoded
->canonical_option
[0],
3275 decoded
->canonical_option_num_elements
- 1,
3276 &decoded
->canonical_option
[1], false, true);
3279 if (decoded
->opt_index
== OPT_SPECIAL_unknown
)
3281 /* Give it a chance to define it a a spec file. */
3282 save_switch (decoded
->canonical_option
[0],
3283 decoded
->canonical_option_num_elements
- 1,
3284 &decoded
->canonical_option
[1], false, false);
3291 /* Handle an option DECODED that is not marked as CL_DRIVER.
3292 LANG_MASK will always be CL_DRIVER. */
3295 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3296 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3298 /* At this point, non-driver options are accepted (and expected to
3299 be passed down by specs) unless marked to be rejected by the
3300 driver. Options to be rejected by the driver but accepted by the
3301 compilers proper are treated just like completely unknown
3303 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3305 if (option
->cl_reject_driver
)
3306 error ("unrecognized command line option %qs",
3307 decoded
->orig_option_with_args_text
);
3309 save_switch (decoded
->canonical_option
[0],
3310 decoded
->canonical_option_num_elements
- 1,
3311 &decoded
->canonical_option
[1], false, true);
3314 static const char *spec_lang
= 0;
3315 static int last_language_n_infiles
;
3317 /* Handle a driver option; arguments and return value as for
3321 driver_handle_option (struct gcc_options
*opts
,
3322 struct gcc_options
*opts_set
,
3323 const struct cl_decoded_option
*decoded
,
3324 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
3326 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
,
3327 diagnostic_context
*dc
)
3329 size_t opt_index
= decoded
->opt_index
;
3330 const char *arg
= decoded
->arg
;
3331 const char *compare_debug_replacement_opt
;
3332 int value
= decoded
->value
;
3333 bool validated
= false;
3334 bool do_save
= true;
3336 gcc_assert (opts
== &global_options
);
3337 gcc_assert (opts_set
== &global_options_set
);
3338 gcc_assert (kind
== DK_UNSPECIFIED
);
3339 gcc_assert (loc
== UNKNOWN_LOCATION
);
3340 gcc_assert (dc
== global_dc
);
3346 struct spec_list
*sl
;
3348 for (sl
= specs
; sl
; sl
= sl
->next
)
3349 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3350 if (link_command_spec
)
3351 printf ("*link_command:\n%s\n\n", link_command_spec
);
3355 case OPT_dumpversion
:
3356 printf ("%s\n", spec_version
);
3359 case OPT_dumpmachine
:
3360 printf ("%s\n", spec_machine
);
3366 /* CPP driver cannot obtain switch from cc1_options. */
3368 add_preprocessor_option ("--version", strlen ("--version"));
3369 add_assembler_option ("--version", strlen ("--version"));
3370 add_linker_option ("--version", strlen ("--version"));
3374 print_help_list
= 1;
3376 /* CPP driver cannot obtain switch from cc1_options. */
3378 add_preprocessor_option ("--help", 6);
3379 add_assembler_option ("--help", 6);
3380 add_linker_option ("--help", 6);
3384 print_subprocess_help
= 2;
3387 case OPT__target_help
:
3388 print_subprocess_help
= 1;
3390 /* CPP driver cannot obtain switch from cc1_options. */
3392 add_preprocessor_option ("--target-help", 13);
3393 add_assembler_option ("--target-help", 13);
3394 add_linker_option ("--target-help", 13);
3397 case OPT__no_sysroot_suffix
:
3398 case OPT_pass_exit_codes
:
3399 case OPT_print_search_dirs
:
3400 case OPT_print_file_name_
:
3401 case OPT_print_prog_name_
:
3402 case OPT_print_multi_lib
:
3403 case OPT_print_multi_directory
:
3404 case OPT_print_sysroot
:
3405 case OPT_print_multi_os_directory
:
3406 case OPT_print_multiarch
:
3407 case OPT_print_sysroot_headers_suffix
:
3410 /* These options set the variables specified in common.opt
3411 automatically, and do not need to be saved for spec
3416 case OPT_print_libgcc_file_name
:
3417 print_file_name
= "libgcc.a";
3421 case OPT_fuse_ld_bfd
:
3425 case OPT_fuse_ld_gold
:
3429 case OPT_fcompare_debug_second
:
3430 compare_debug_second
= 1;
3433 case OPT_fcompare_debug
:
3437 compare_debug_replacement_opt
= "-fcompare-debug=";
3439 goto compare_debug_with_arg
;
3442 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
3444 goto compare_debug_with_arg
;
3451 case OPT_fcompare_debug_
:
3452 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
3453 compare_debug_with_arg
:
3454 gcc_assert (decoded
->canonical_option_num_elements
== 1);
3455 gcc_assert (arg
!= NULL
);
3460 if (compare_debug
< 0)
3461 compare_debug_opt
= NULL
;
3463 compare_debug_opt
= arg
;
3464 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
, true);
3470 /* Pass the rest of this option to the assembler. */
3472 /* Split the argument at commas. */
3474 for (j
= 0; arg
[j
]; j
++)
3477 add_assembler_option (arg
+ prev
, j
- prev
);
3481 /* Record the part after the last comma. */
3482 add_assembler_option (arg
+ prev
, j
- prev
);
3490 /* Pass the rest of this option to the preprocessor. */
3492 /* Split the argument at commas. */
3494 for (j
= 0; arg
[j
]; j
++)
3497 add_preprocessor_option (arg
+ prev
, j
- prev
);
3501 /* Record the part after the last comma. */
3502 add_preprocessor_option (arg
+ prev
, j
- prev
);
3510 /* Split the argument at commas. */
3512 for (j
= 0; arg
[j
]; j
++)
3515 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
3518 /* Record the part after the last comma. */
3519 add_infile (arg
+ prev
, "*");
3525 add_infile (arg
, "*");
3529 case OPT_Xpreprocessor
:
3530 add_preprocessor_option (arg
, strlen (arg
));
3534 case OPT_Xassembler
:
3535 add_assembler_option (arg
, strlen (arg
));
3540 /* POSIX allows separation of -l and the lib arg; canonicalize
3541 by concatenating -l with its arg */
3542 add_infile (concat ("-l", arg
, NULL
), "*");
3547 /* Similarly, canonicalize -L for linkers that may not accept
3548 separate arguments. */
3549 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
, true);
3554 save_switch (concat ("-F", arg
, NULL
), 0, NULL
, validated
, true);
3557 case OPT_save_temps
:
3558 save_temps_flag
= SAVE_TEMPS_CWD
;
3562 case OPT_save_temps_
:
3563 if (strcmp (arg
, "cwd") == 0)
3564 save_temps_flag
= SAVE_TEMPS_CWD
;
3565 else if (strcmp (arg
, "obj") == 0
3566 || strcmp (arg
, "object") == 0)
3567 save_temps_flag
= SAVE_TEMPS_OBJ
;
3569 fatal_error ("%qs is an unknown -save-temps option",
3570 decoded
->orig_option_with_args_text
);
3573 case OPT_no_canonical_prefixes
:
3574 /* Already handled as a special case, so ignored here. */
3580 /* These options set the variables specified in common.opt
3581 automatically, but do need to be saved for spec
3587 struct user_specs
*user
= XNEW (struct user_specs
);
3589 user
->next
= (struct user_specs
*) 0;
3590 user
->filename
= arg
;
3591 if (user_specs_tail
)
3592 user_specs_tail
->next
= user
;
3594 user_specs_head
= user
;
3595 user_specs_tail
= user
;
3601 target_system_root
= arg
;
3602 target_system_root_changed
= 1;
3607 if (report_times_to_file
)
3608 fclose (report_times_to_file
);
3609 report_times_to_file
= fopen (arg
, "a");
3615 This is similar to -v except that there is no execution
3616 of the commands and the echoed arguments are quoted. It
3617 is intended for use in shell scripts to capture the
3618 driver-generated command line. */
3619 verbose_only_flag
++;
3626 size_t len
= strlen (arg
);
3628 /* Catch the case where the user has forgotten to append a
3629 directory separator to the path. Note, they may be using
3630 -B to add an executable name prefix, eg "i386-elf-", in
3631 order to distinguish between multiple installations of
3632 GCC in the same directory. Hence we must check to see
3633 if appending a directory separator actually makes a
3634 valid directory name. */
3635 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
3636 && is_directory (arg
, false))
3638 char *tmp
= XNEWVEC (char, len
+ 2);
3640 tmp
[len
] = DIR_SEPARATOR
;
3645 add_prefix (&exec_prefixes
, arg
, NULL
,
3646 PREFIX_PRIORITY_B_OPT
, 0, 0);
3647 add_prefix (&startfile_prefixes
, arg
, NULL
,
3648 PREFIX_PRIORITY_B_OPT
, 0, 0);
3649 add_prefix (&include_prefixes
, arg
, NULL
,
3650 PREFIX_PRIORITY_B_OPT
, 0, 0);
3657 if (!strcmp (spec_lang
, "none"))
3658 /* Suppress the warning if -xnone comes after the last input
3659 file, because alternate command interfaces like g++ might
3660 find it useful to place -xnone after each input file. */
3663 last_language_n_infiles
= n_infiles
;
3669 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3670 arg
= convert_filename (arg
, ! have_c
, 0);
3672 /* Save the output name in case -save-temps=obj was used. */
3673 save_temps_prefix
= xstrdup (arg
);
3674 /* On some systems, ld cannot handle "-o" without a space. So
3675 split the option from its argument. */
3676 save_switch ("-o", 1, &arg
, validated
, true);
3679 case OPT_static_libgcc
:
3680 case OPT_shared_libgcc
:
3681 case OPT_static_libgfortran
:
3682 case OPT_static_libstdc__
:
3683 /* These are always valid, since gcc.c itself understands the
3684 first two, gfortranspec.c understands -static-libgfortran and
3685 g++spec.c understands -static-libstdc++ */
3694 /* Various driver options need no special processing at this
3695 point, having been handled in a prescan above or being
3696 handled by specs. */
3701 save_switch (decoded
->canonical_option
[0],
3702 decoded
->canonical_option_num_elements
- 1,
3703 &decoded
->canonical_option
[1], validated
, true);
3707 /* Put the driver's standard set of option handlers in *HANDLERS. */
3710 set_option_handlers (struct cl_option_handlers
*handlers
)
3712 handlers
->unknown_option_callback
= driver_unknown_option_callback
;
3713 handlers
->wrong_lang_callback
= driver_wrong_lang_callback
;
3714 handlers
->num_handlers
= 3;
3715 handlers
->handlers
[0].handler
= driver_handle_option
;
3716 handlers
->handlers
[0].mask
= CL_DRIVER
;
3717 handlers
->handlers
[1].handler
= common_handle_option
;
3718 handlers
->handlers
[1].mask
= CL_COMMON
;
3719 handlers
->handlers
[2].handler
= target_handle_option
;
3720 handlers
->handlers
[2].mask
= CL_TARGET
;
3723 /* Create the vector `switches' and its contents.
3724 Store its length in `n_switches'. */
3727 process_command (unsigned int decoded_options_count
,
3728 struct cl_decoded_option
*decoded_options
)
3732 char *tooldir_prefix
, *tooldir_prefix2
;
3733 char *(*get_relative_prefix
) (const char *, const char *,
3734 const char *) = NULL
;
3735 struct cl_option_handlers handlers
;
3738 gcc_exec_prefix
= getenv ("GCC_EXEC_PREFIX");
3742 added_libraries
= 0;
3744 /* Figure compiler version from version string. */
3746 compiler_version
= temp1
= xstrdup (version_string
);
3748 for (; *temp1
; ++temp1
)
3757 /* Handle any -no-canonical-prefixes flag early, to assign the function
3758 that builds relative prefixes. This function creates default search
3759 paths that are needed later in normal option handling. */
3761 for (j
= 1; j
< decoded_options_count
; j
++)
3763 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
3765 get_relative_prefix
= make_relative_prefix_ignore_links
;
3769 if (! get_relative_prefix
)
3770 get_relative_prefix
= make_relative_prefix
;
3772 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3773 see if we can create it from the pathname specified in
3774 decoded_options[0].arg. */
3776 gcc_libexec_prefix
= standard_libexec_prefix
;
3778 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3779 if (!gcc_exec_prefix
)
3781 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3782 standard_bindir_prefix
,
3783 standard_exec_prefix
);
3784 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3785 standard_bindir_prefix
,
3786 standard_libexec_prefix
);
3787 if (gcc_exec_prefix
)
3788 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3792 /* make_relative_prefix requires a program name, but
3793 GCC_EXEC_PREFIX is typically a directory name with a trailing
3794 / (which is ignored by make_relative_prefix), so append a
3796 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3797 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
3798 standard_exec_prefix
,
3799 standard_libexec_prefix
);
3801 /* The path is unrelocated, so fallback to the original setting. */
3802 if (!gcc_libexec_prefix
)
3803 gcc_libexec_prefix
= standard_libexec_prefix
;
3809 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3810 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3811 or an automatically created GCC_EXEC_PREFIX from
3812 decoded_options[0].arg. */
3814 /* Do language-specific adjustment/addition of flags. */
3815 lang_specific_driver (&decoded_options
, &decoded_options_count
,
3818 if (gcc_exec_prefix
)
3820 int len
= strlen (gcc_exec_prefix
);
3822 if (len
> (int) sizeof ("/lib/gcc/") - 1
3823 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3825 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3826 if (IS_DIR_SEPARATOR (*temp
)
3827 && filename_ncmp (temp
+ 1, "lib", 3) == 0
3828 && IS_DIR_SEPARATOR (temp
[4])
3829 && filename_ncmp (temp
+ 5, "gcc", 3) == 0)
3830 len
-= sizeof ("/lib/gcc/") - 1;
3833 set_std_prefix (gcc_exec_prefix
, len
);
3834 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3835 PREFIX_PRIORITY_LAST
, 0, 0);
3836 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3837 PREFIX_PRIORITY_LAST
, 0, 0);
3840 /* COMPILER_PATH and LIBRARY_PATH have values
3841 that are lists of directory names with colons. */
3843 temp
= getenv ("COMPILER_PATH");
3846 const char *startp
, *endp
;
3847 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3849 startp
= endp
= temp
;
3852 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3854 strncpy (nstore
, startp
, endp
- startp
);
3856 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3857 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3859 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3860 nstore
[endp
- startp
+ 1] = 0;
3863 nstore
[endp
- startp
] = 0;
3864 add_prefix (&exec_prefixes
, nstore
, 0,
3865 PREFIX_PRIORITY_LAST
, 0, 0);
3866 add_prefix (&include_prefixes
, nstore
, 0,
3867 PREFIX_PRIORITY_LAST
, 0, 0);
3870 endp
= startp
= endp
+ 1;
3877 temp
= getenv (LIBRARY_PATH_ENV
);
3878 if (temp
&& *cross_compile
== '0')
3880 const char *startp
, *endp
;
3881 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3883 startp
= endp
= temp
;
3886 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3888 strncpy (nstore
, startp
, endp
- startp
);
3890 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3891 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3893 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3894 nstore
[endp
- startp
+ 1] = 0;
3897 nstore
[endp
- startp
] = 0;
3898 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3899 PREFIX_PRIORITY_LAST
, 0, 1);
3902 endp
= startp
= endp
+ 1;
3909 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3910 temp
= getenv ("LPATH");
3911 if (temp
&& *cross_compile
== '0')
3913 const char *startp
, *endp
;
3914 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3916 startp
= endp
= temp
;
3919 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3921 strncpy (nstore
, startp
, endp
- startp
);
3923 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3924 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3926 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3927 nstore
[endp
- startp
+ 1] = 0;
3930 nstore
[endp
- startp
] = 0;
3931 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3932 PREFIX_PRIORITY_LAST
, 0, 1);
3935 endp
= startp
= endp
+ 1;
3942 /* Process the options and store input files and switches in their
3945 last_language_n_infiles
= -1;
3947 set_option_handlers (&handlers
);
3949 for (j
= 1; j
< decoded_options_count
; j
++)
3951 switch (decoded_options
[j
].opt_index
)
3963 for (j
= 1; j
< decoded_options_count
; j
++)
3965 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
3967 const char *arg
= decoded_options
[j
].arg
;
3968 const char *p
= strrchr (arg
, '@');
3972 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3973 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
3975 /* For LTO static archive support we handle input file
3976 specifications that are composed of a filename and
3977 an offset like FNAME@OFFSET. */
3980 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
3981 && strlen (p
) == (unsigned int)consumed
)
3983 fname
= (char *)xmalloc (p
- arg
+ 1);
3984 memcpy (fname
, arg
, p
- arg
);
3985 fname
[p
- arg
] = '\0';
3986 /* Only accept non-stdin and existing FNAME parts, otherwise
3987 try with the full name. */
3988 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
3991 fname
= xstrdup (arg
);
3995 fname
= xstrdup (arg
);
3997 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
3998 perror_with_name (fname
);
4000 add_infile (arg
, spec_lang
);
4006 read_cmdline_option (&global_options
, &global_options_set
,
4007 decoded_options
+ j
, UNKNOWN_LOCATION
,
4008 CL_DRIVER
, &handlers
, global_dc
);
4011 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4012 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4013 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
4015 save_temps_length
= strlen (save_temps_prefix
);
4016 temp
= strrchr (lbasename (save_temps_prefix
), '.');
4019 save_temps_length
-= strlen (temp
);
4020 save_temps_prefix
[save_temps_length
] = '\0';
4024 else if (save_temps_prefix
!= NULL
)
4026 free (save_temps_prefix
);
4027 save_temps_prefix
= NULL
;
4030 if (save_temps_flag
&& use_pipes
)
4032 /* -save-temps overrides -pipe, so that temp files are produced */
4033 if (save_temps_flag
)
4034 warning (0, "-pipe ignored because -save-temps specified");
4040 const char *gcd
= getenv ("GCC_COMPARE_DEBUG");
4042 if (gcd
&& gcd
[0] == '-')
4045 compare_debug_opt
= gcd
;
4047 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
4050 compare_debug_opt
= "-gtoggle";
4053 else if (compare_debug
< 0)
4056 gcc_assert (!compare_debug_opt
);
4059 /* Set up the search paths. We add directories that we expect to
4060 contain GNU Toolchain components before directories specified by
4061 the machine description so that we will find GNU components (like
4062 the GNU assembler) before those of the host system. */
4064 /* If we don't know where the toolchain has been installed, use the
4065 configured-in locations. */
4066 if (!gcc_exec_prefix
)
4069 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4070 PREFIX_PRIORITY_LAST
, 1, 0);
4071 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4072 PREFIX_PRIORITY_LAST
, 2, 0);
4073 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4074 PREFIX_PRIORITY_LAST
, 2, 0);
4076 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4077 PREFIX_PRIORITY_LAST
, 1, 0);
4080 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4081 tooldir_prefix2
= concat (tooldir_base_prefix
, spec_machine
,
4082 dir_separator_str
, NULL
);
4084 /* Look for tools relative to the location from which the driver is
4085 running, or, if that is not available, the configured prefix. */
4087 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4088 spec_machine
, dir_separator_str
,
4089 spec_version
, dir_separator_str
, tooldir_prefix2
, NULL
);
4090 free (tooldir_prefix2
);
4092 add_prefix (&exec_prefixes
,
4093 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4094 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4095 add_prefix (&startfile_prefixes
,
4096 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4097 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4098 free (tooldir_prefix
);
4100 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4101 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4102 then consider it to relocate with the rest of the GCC installation
4103 if GCC_EXEC_PREFIX is set.
4104 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4105 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
4107 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4108 standard_bindir_prefix
,
4109 target_system_root
);
4110 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4112 target_system_root
= tmp_prefix
;
4113 target_system_root_changed
= 1;
4118 /* More prefixes are enabled in main, after we read the specs file
4119 and determine whether this is cross-compilation or not. */
4121 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4122 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
4124 /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG
4125 environment variable. */
4126 if (compare_debug
== 2 || compare_debug
== 3)
4128 const char *opt
= concat ("-fcompare-debug=", compare_debug_opt
, NULL
);
4129 save_switch (opt
, 0, NULL
, false, true);
4133 /* Ensure we only invoke each subprocess once. */
4134 if (print_subprocess_help
|| print_help_list
|| print_version
)
4138 /* Create a dummy input file, so that we can pass
4139 the help option on to the various sub-processes. */
4140 add_infile ("help-dummy", "c");
4144 switches
[n_switches
].part1
= 0;
4146 infiles
[n_infiles
].name
= 0;
4149 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4150 and place that in the environment. */
4153 set_collect_gcc_options (void)
4158 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4160 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4161 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4164 for (i
= 0; (int) i
< n_switches
; i
++)
4166 const char *const *args
;
4169 obstack_grow (&collect_obstack
, " ", 1);
4173 /* Ignore elided switches. */
4174 if ((switches
[i
].live_cond
4175 & (SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
))
4179 obstack_grow (&collect_obstack
, "'-", 2);
4180 q
= switches
[i
].part1
;
4181 while ((p
= strchr (q
, '\'')))
4183 obstack_grow (&collect_obstack
, q
, p
- q
);
4184 obstack_grow (&collect_obstack
, "'\\''", 4);
4187 obstack_grow (&collect_obstack
, q
, strlen (q
));
4188 obstack_grow (&collect_obstack
, "'", 1);
4190 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4192 obstack_grow (&collect_obstack
, " '", 2);
4194 while ((p
= strchr (q
, '\'')))
4196 obstack_grow (&collect_obstack
, q
, p
- q
);
4197 obstack_grow (&collect_obstack
, "'\\''", 4);
4200 obstack_grow (&collect_obstack
, q
, strlen (q
));
4201 obstack_grow (&collect_obstack
, "'", 1);
4204 obstack_grow (&collect_obstack
, "\0", 1);
4205 xputenv (XOBFINISH (&collect_obstack
, char *));
4208 /* Process a spec string, accumulating and running commands. */
4210 /* These variables describe the input file name.
4211 input_file_number is the index on outfiles of this file,
4212 so that the output file name can be stored for later use by %o.
4213 input_basename is the start of the part of the input file
4214 sans all directory names, and basename_length is the number
4215 of characters starting there excluding the suffix .c or whatever. */
4217 static const char *gcc_input_filename
;
4218 static int input_file_number
;
4219 size_t input_filename_length
;
4220 static int basename_length
;
4221 static int suffixed_basename_length
;
4222 static const char *input_basename
;
4223 static const char *input_suffix
;
4224 #ifndef HOST_LACKS_INODE_NUMBERS
4225 static struct stat input_stat
;
4227 static int input_stat_set
;
4229 /* The compiler used to process the current input file. */
4230 static struct compiler
*input_file_compiler
;
4232 /* These are variables used within do_spec and do_spec_1. */
4234 /* Nonzero if an arg has been started and not yet terminated
4235 (with space, tab or newline). */
4236 static int arg_going
;
4238 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4239 is a temporary file name. */
4240 static int delete_this_arg
;
4242 /* Nonzero means %w has been seen; the next arg to be terminated
4243 is the output file name of this compilation. */
4244 static int this_is_output_file
;
4246 /* Nonzero means %s has been seen; the next arg to be terminated
4247 is the name of a library file and we should try the standard
4248 search dirs for it. */
4249 static int this_is_library_file
;
4251 /* Nonzero means %T has been seen; the next arg to be terminated
4252 is the name of a linker script and we should try all of the
4253 standard search dirs for it. If it is found insert a --script
4254 command line switch and then substitute the full path in place,
4255 otherwise generate an error message. */
4256 static int this_is_linker_script
;
4258 /* Nonzero means that the input of this command is coming from a pipe. */
4259 static int input_from_pipe
;
4261 /* Nonnull means substitute this for any suffix when outputting a switches
4263 static const char *suffix_subst
;
4265 /* If there is an argument being accumulated, terminate it and store it. */
4268 end_going_arg (void)
4274 obstack_1grow (&obstack
, 0);
4275 string
= XOBFINISH (&obstack
, const char *);
4276 if (this_is_library_file
)
4277 string
= find_file (string
);
4278 if (this_is_linker_script
)
4280 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4282 if (full_script_path
== NULL
)
4284 error ("unable to locate default linker script %qs in the library search paths", string
);
4285 /* Script was not found on search path. */
4288 store_arg ("--script", false, false);
4289 string
= full_script_path
;
4291 store_arg (string
, delete_this_arg
, this_is_output_file
);
4292 if (this_is_output_file
)
4293 outfiles
[input_file_number
] = string
;
4299 /* Parse the WRAPPER string which is a comma separated list of the command line
4300 and insert them into the beginning of argbuf. */
4303 insert_wrapper (const char *wrapper
)
4307 char *buf
= xstrdup (wrapper
);
4309 unsigned int old_length
= argbuf
.length ();
4317 while ((p
= strchr (p
, ',')) != NULL
);
4319 argbuf
.safe_grow (old_length
+ n
);
4320 memmove (argbuf
.address () + n
,
4322 old_length
* sizeof (const_char_p
));
4336 while ((p
= strchr (p
, ',')) != NULL
);
4337 gcc_assert (i
== n
);
4340 /* Process the spec SPEC and run the commands specified therein.
4341 Returns 0 if the spec is successfully processed; -1 if failed. */
4344 do_spec (const char *spec
)
4348 value
= do_spec_2 (spec
);
4350 /* Force out any unfinished command.
4351 If -pipe, this forces out the last command if it ended in `|'. */
4354 if (argbuf
.length () > 0
4355 && !strcmp (argbuf
.last (), "|"))
4358 set_collect_gcc_options ();
4360 if (argbuf
.length () > 0)
4368 do_spec_2 (const char *spec
)
4374 delete_this_arg
= 0;
4375 this_is_output_file
= 0;
4376 this_is_library_file
= 0;
4377 this_is_linker_script
= 0;
4378 input_from_pipe
= 0;
4379 suffix_subst
= NULL
;
4381 result
= do_spec_1 (spec
, 0, NULL
);
4389 /* Process the given spec string and add any new options to the end
4390 of the switches/n_switches array. */
4393 do_option_spec (const char *name
, const char *spec
)
4395 unsigned int i
, value_count
, value_len
;
4396 const char *p
, *q
, *value
;
4397 char *tmp_spec
, *tmp_spec_p
;
4399 if (configure_default_options
[0].name
== NULL
)
4402 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4403 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4405 if (i
== ARRAY_SIZE (configure_default_options
))
4408 value
= configure_default_options
[i
].value
;
4409 value_len
= strlen (value
);
4411 /* Compute the size of the final spec. */
4414 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4420 /* Replace each %(VALUE) by the specified value. */
4421 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4422 + value_count
* (value_len
- strlen ("%(VALUE)")));
4423 tmp_spec_p
= tmp_spec
;
4425 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4427 memcpy (tmp_spec_p
, q
, p
- q
);
4428 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4429 memcpy (tmp_spec_p
, value
, value_len
);
4430 tmp_spec_p
+= value_len
;
4431 q
= p
+ strlen ("%(VALUE)");
4433 strcpy (tmp_spec_p
, q
);
4435 do_self_spec (tmp_spec
);
4438 /* Process the given spec string and add any new options to the end
4439 of the switches/n_switches array. */
4442 do_self_spec (const char *spec
)
4447 do_spec_1 (" ", 0, NULL
);
4449 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
4450 do_self_specs adds the replacements to switches array, so it shouldn't
4451 be processed afterwards. */
4452 for (i
= 0; i
< n_switches
; i
++)
4453 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
4454 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
4456 if (argbuf
.length () > 0)
4458 const char **argbuf_copy
;
4459 struct cl_decoded_option
*decoded_options
;
4460 struct cl_option_handlers handlers
;
4461 unsigned int decoded_options_count
;
4464 /* Create a copy of argbuf with a dummy argv[0] entry for
4465 decode_cmdline_options_to_array. */
4466 argbuf_copy
= XNEWVEC (const char *,
4467 argbuf
.length () + 1);
4468 argbuf_copy
[0] = "";
4469 memcpy (argbuf_copy
+ 1, argbuf
.address (),
4470 argbuf
.length () * sizeof (const char *));
4472 decode_cmdline_options_to_array (argbuf
.length () + 1,
4474 CL_DRIVER
, &decoded_options
,
4475 &decoded_options_count
);
4478 set_option_handlers (&handlers
);
4480 for (j
= 1; j
< decoded_options_count
; j
++)
4482 switch (decoded_options
[j
].opt_index
)
4484 case OPT_SPECIAL_input_file
:
4485 /* Specs should only generate options, not input
4487 if (strcmp (decoded_options
[j
].arg
, "-") != 0)
4488 fatal_error ("switch %qs does not start with %<-%>",
4489 decoded_options
[j
].arg
);
4491 fatal_error ("spec-generated switch is just %<-%>");
4494 case OPT_fcompare_debug_second
:
4495 case OPT_fcompare_debug
:
4496 case OPT_fcompare_debug_
:
4498 /* Avoid duplicate processing of some options from
4499 compare-debug specs; just save them here. */
4500 save_switch (decoded_options
[j
].canonical_option
[0],
4501 (decoded_options
[j
].canonical_option_num_elements
4503 &decoded_options
[j
].canonical_option
[1], false, true);
4507 read_cmdline_option (&global_options
, &global_options_set
,
4508 decoded_options
+ j
, UNKNOWN_LOCATION
,
4509 CL_DRIVER
, &handlers
, global_dc
);
4515 switches
[n_switches
].part1
= 0;
4519 /* Callback for processing %D and %I specs. */
4521 struct spec_path_info
{
4526 bool separate_options
;
4530 spec_path (char *path
, void *data
)
4532 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
4536 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4539 if (info
->append_len
!= 0)
4541 len
= strlen (path
);
4542 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4545 if (!is_directory (path
, true))
4548 do_spec_1 (info
->option
, 1, NULL
);
4549 if (info
->separate_options
)
4550 do_spec_1 (" ", 0, NULL
);
4552 if (info
->append_len
== 0)
4554 len
= strlen (path
);
4555 save
= path
[len
- 1];
4556 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4557 path
[len
- 1] = '\0';
4560 do_spec_1 (path
, 1, NULL
);
4561 do_spec_1 (" ", 0, NULL
);
4563 /* Must not damage the original path. */
4564 if (info
->append_len
== 0)
4565 path
[len
- 1] = save
;
4570 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
4574 create_at_file (char **argv
)
4576 char *temp_file
= make_temp_file ("");
4577 char *at_argument
= concat ("@", temp_file
, NULL
);
4578 FILE *f
= fopen (temp_file
, "w");
4582 fatal_error ("could not open temporary response file %s",
4585 status
= writeargv (argv
, f
);
4588 fatal_error ("could not write to temporary response file %s",
4591 status
= fclose (f
);
4594 fatal_error ("could not close temporary response file %s",
4597 store_arg (at_argument
, 0, 0);
4599 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
4602 /* True if we should compile INFILE. */
4605 compile_input_file_p (struct infile
*infile
)
4607 if ((!infile
->language
) || (infile
->language
[0] != '*'))
4608 if (infile
->incompiler
== input_file_compiler
)
4613 /* Process each member of VEC as a spec. */
4616 do_specs_vec (vec
<char_p
> vec
)
4621 FOR_EACH_VEC_ELT (vec
, ix
, opt
)
4623 do_spec_1 (opt
, 1, NULL
);
4624 /* Make each accumulated option a separate argument. */
4625 do_spec_1 (" ", 0, NULL
);
4629 /* Process the sub-spec SPEC as a portion of a larger spec.
4630 This is like processing a whole spec except that we do
4631 not initialize at the beginning and we do not supply a
4632 newline by default at the end.
4633 INSWITCH nonzero means don't process %-sequences in SPEC;
4634 in this case, % is treated as an ordinary character.
4635 This is used while substituting switches.
4636 INSWITCH nonzero also causes SPC not to terminate an argument.
4638 Value is zero unless a line was finished
4639 and the command on that line reported an error. */
4642 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4644 const char *p
= spec
;
4649 /* If it's an empty string argument to a switch, keep it as is. */
4650 if (inswitch
&& !*p
)
4654 /* If substituting a switch, treat all chars like letters.
4655 Otherwise, NL, SPC, TAB and % are special. */
4656 switch (inswitch
? 'a' : c
)
4661 if (argbuf
.length () > 0
4662 && !strcmp (argbuf
.last (), "|"))
4664 /* A `|' before the newline means use a pipe here,
4665 but only if -pipe was specified.
4666 Otherwise, execute now and don't pass the `|' as an arg. */
4669 input_from_pipe
= 1;
4676 set_collect_gcc_options ();
4678 if (argbuf
.length () > 0)
4684 /* Reinitialize for a new command, and for a new argument. */
4687 delete_this_arg
= 0;
4688 this_is_output_file
= 0;
4689 this_is_library_file
= 0;
4690 this_is_linker_script
= 0;
4691 input_from_pipe
= 0;
4698 obstack_1grow (&obstack
, c
);
4706 /* Reinitialize for a new argument. */
4707 delete_this_arg
= 0;
4708 this_is_output_file
= 0;
4709 this_is_library_file
= 0;
4710 this_is_linker_script
= 0;
4717 fatal_error ("spec %qs invalid", spec
);
4720 if (save_temps_length
)
4721 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4723 obstack_grow (&obstack
, input_basename
, basename_length
);
4724 if (compare_debug
< 0)
4725 obstack_grow (&obstack
, ".gk", 3);
4730 if (save_temps_length
)
4731 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4733 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4734 if (compare_debug
< 0)
4735 obstack_grow (&obstack
, ".gk", 3);
4740 delete_this_arg
= 2;
4743 /* Dump out the directories specified with LIBRARY_PATH,
4744 followed by the absolute directories
4745 that we search for startfiles. */
4748 struct spec_path_info info
;
4751 info
.append_len
= 0;
4752 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4753 /* Used on systems which record the specified -L dirs
4754 and use them to search for dynamic linking.
4755 Relative directories always come from -B,
4756 and it is better not to use them for searching
4757 at run time. In particular, stage1 loses. */
4758 info
.omit_relative
= true;
4760 info
.omit_relative
= false;
4762 info
.separate_options
= false;
4764 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
4769 /* %efoo means report an error with `foo' as error message
4770 and don't execute any more commands for this file. */
4774 while (*p
!= 0 && *p
!= '\n')
4776 buf
= (char *) alloca (p
- q
+ 1);
4777 strncpy (buf
, q
, p
- q
);
4779 error ("%s", _(buf
));
4784 /* %nfoo means report a notice with `foo' on stderr. */
4788 while (*p
!= 0 && *p
!= '\n')
4790 buf
= (char *) alloca (p
- q
+ 1);
4791 strncpy (buf
, q
, p
- q
);
4793 inform (0, "%s", _(buf
));
4803 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4804 defined, and it is not a directory, and it is
4805 writable, use it. Otherwise, treat this like any
4806 other temporary file. */
4808 if ((!save_temps_flag
)
4809 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4810 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4812 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4813 strlen (HOST_BIT_BUCKET
));
4814 delete_this_arg
= 0;
4819 goto create_temp_file
;
4823 obstack_1grow (&obstack
, '-');
4824 delete_this_arg
= 0;
4827 /* consume suffix */
4828 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4830 if (p
[0] == '%' && p
[1] == 'O')
4835 goto create_temp_file
;
4839 /* consume suffix */
4840 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4842 if (p
[0] == '%' && p
[1] == 'O')
4847 goto create_temp_file
;
4853 struct temp_name
*t
;
4855 const char *suffix
= p
;
4856 char *saved_suffix
= NULL
;
4858 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4860 suffix_length
= p
- suffix
;
4861 if (p
[0] == '%' && p
[1] == 'O')
4864 /* We don't support extra suffix characters after %O. */
4865 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
4866 fatal_error ("spec %qs has invalid %<%%0%c%>", spec
, *p
);
4867 if (suffix_length
== 0)
4868 suffix
= TARGET_OBJECT_SUFFIX
;
4872 = XNEWVEC (char, suffix_length
4873 + strlen (TARGET_OBJECT_SUFFIX
));
4874 strncpy (saved_suffix
, suffix
, suffix_length
);
4875 strcpy (saved_suffix
+ suffix_length
,
4876 TARGET_OBJECT_SUFFIX
);
4878 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4881 if (compare_debug
< 0)
4883 suffix
= concat (".gk", suffix
, NULL
);
4887 /* If -save-temps=obj and -o were specified, use that for the
4889 if (save_temps_length
)
4892 temp_filename_length
4893 = save_temps_length
+ suffix_length
+ 1;
4894 tmp
= (char *) alloca (temp_filename_length
);
4895 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
4896 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
4897 tmp
[save_temps_length
+ suffix_length
] = '\0';
4898 temp_filename
= save_string (tmp
, save_temps_length
4900 obstack_grow (&obstack
, temp_filename
,
4901 temp_filename_length
);
4903 delete_this_arg
= 0;
4907 /* If the gcc_input_filename has the same suffix specified
4908 for the %g, %u, or %U, and -save-temps is specified,
4909 we could end up using that file as an intermediate
4910 thus clobbering the user's source file (.e.g.,
4911 gcc -save-temps foo.s would clobber foo.s with the
4912 output of cpp0). So check for this condition and
4913 generate a temp file as the intermediate. */
4915 if (save_temps_flag
)
4918 temp_filename_length
= basename_length
+ suffix_length
+ 1;
4919 tmp
= (char *) alloca (temp_filename_length
);
4920 memcpy (tmp
, input_basename
, basename_length
);
4921 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
4922 tmp
[basename_length
+ suffix_length
] = '\0';
4923 temp_filename
= tmp
;
4925 if (filename_cmp (temp_filename
, gcc_input_filename
) != 0)
4927 #ifndef HOST_LACKS_INODE_NUMBERS
4928 struct stat st_temp
;
4930 /* Note, set_input() resets input_stat_set to 0. */
4931 if (input_stat_set
== 0)
4933 input_stat_set
= stat (gcc_input_filename
,
4935 if (input_stat_set
>= 0)
4939 /* If we have the stat for the gcc_input_filename
4940 and we can do the stat for the temp_filename
4941 then the they could still refer to the same
4942 file if st_dev/st_ino's are the same. */
4943 if (input_stat_set
!= 1
4944 || stat (temp_filename
, &st_temp
) < 0
4945 || input_stat
.st_dev
!= st_temp
.st_dev
4946 || input_stat
.st_ino
!= st_temp
.st_ino
)
4948 /* Just compare canonical pathnames. */
4949 char* input_realname
= lrealpath (gcc_input_filename
);
4950 char* temp_realname
= lrealpath (temp_filename
);
4951 bool files_differ
= filename_cmp (input_realname
, temp_realname
);
4952 free (input_realname
);
4953 free (temp_realname
);
4957 temp_filename
= save_string (temp_filename
,
4958 temp_filename_length
+ 1);
4959 obstack_grow (&obstack
, temp_filename
,
4960 temp_filename_length
);
4962 delete_this_arg
= 0;
4968 /* See if we already have an association of %g/%u/%U and
4970 for (t
= temp_names
; t
; t
= t
->next
)
4971 if (t
->length
== suffix_length
4972 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4973 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4976 /* Make a new association if needed. %u and %j
4978 if (t
== 0 || c
== 'u' || c
== 'j')
4982 t
= XNEW (struct temp_name
);
4983 t
->next
= temp_names
;
4986 t
->length
= suffix_length
;
4989 t
->suffix
= saved_suffix
;
4990 saved_suffix
= NULL
;
4993 t
->suffix
= save_string (suffix
, suffix_length
);
4994 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4995 temp_filename
= make_temp_file (t
->suffix
);
4996 temp_filename_length
= strlen (temp_filename
);
4997 t
->filename
= temp_filename
;
4998 t
->filename_length
= temp_filename_length
;
5001 free (saved_suffix
);
5003 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
5004 delete_this_arg
= 1;
5012 if (at_file_supplied
)
5014 /* We are going to expand `%i' to `@FILE', where FILE
5015 is a newly-created temporary filename. The filenames
5016 that would usually be expanded in place of %o will be
5017 written to the temporary file. */
5022 for (i
= 0; i
< n_infiles
; i
++)
5023 if (compile_input_file_p (&infiles
[i
]))
5026 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5028 /* Copy the strings over. */
5029 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
5030 if (compile_input_file_p (&infiles
[i
]))
5032 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
5033 infiles
[i
].compiled
= true;
5038 create_at_file (argv
);
5041 for (i
= 0; (int) i
< n_infiles
; i
++)
5042 if (compile_input_file_p (&infiles
[i
]))
5044 store_arg (infiles
[i
].name
, 0, 0);
5045 infiles
[i
].compiled
= true;
5050 obstack_grow (&obstack
, gcc_input_filename
,
5051 input_filename_length
);
5058 struct spec_path_info info
;
5062 do_spec_1 ("-imultilib", 1, NULL
);
5063 /* Make this a separate argument. */
5064 do_spec_1 (" ", 0, NULL
);
5065 do_spec_1 (multilib_dir
, 1, NULL
);
5066 do_spec_1 (" ", 0, NULL
);
5071 do_spec_1 ("-imultiarch", 1, NULL
);
5072 /* Make this a separate argument. */
5073 do_spec_1 (" ", 0, NULL
);
5074 do_spec_1 (multiarch_dir
, 1, NULL
);
5075 do_spec_1 (" ", 0, NULL
);
5078 if (gcc_exec_prefix
)
5080 do_spec_1 ("-iprefix", 1, NULL
);
5081 /* Make this a separate argument. */
5082 do_spec_1 (" ", 0, NULL
);
5083 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5084 do_spec_1 (" ", 0, NULL
);
5087 if (target_system_root_changed
||
5088 (target_system_root
&& target_sysroot_hdrs_suffix
))
5090 do_spec_1 ("-isysroot", 1, NULL
);
5091 /* Make this a separate argument. */
5092 do_spec_1 (" ", 0, NULL
);
5093 do_spec_1 (target_system_root
, 1, NULL
);
5094 if (target_sysroot_hdrs_suffix
)
5095 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5096 do_spec_1 (" ", 0, NULL
);
5099 info
.option
= "-isystem";
5100 info
.append
= "include";
5101 info
.append_len
= strlen (info
.append
);
5102 info
.omit_relative
= false;
5103 info
.separate_options
= true;
5105 for_each_path (&include_prefixes
, false, info
.append_len
,
5108 info
.append
= "include-fixed";
5109 if (*sysroot_hdrs_suffix_spec
)
5110 info
.append
= concat (info
.append
, dir_separator_str
,
5111 multilib_dir
, NULL
);
5112 info
.append_len
= strlen (info
.append
);
5113 for_each_path (&include_prefixes
, false, info
.append_len
,
5120 int max
= n_infiles
;
5121 max
+= lang_specific_extra_outfiles
;
5123 if (HAVE_GNU_LD
&& at_file_supplied
)
5125 /* We are going to expand `%o' to `@FILE', where FILE
5126 is a newly-created temporary filename. The filenames
5127 that would usually be expanded in place of %o will be
5128 written to the temporary file. */
5133 /* Convert OUTFILES into a form suitable for writeargv. */
5135 /* Determine how many are non-NULL. */
5136 for (n_files
= 0, i
= 0; i
< max
; i
++)
5137 n_files
+= outfiles
[i
] != NULL
;
5139 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5141 /* Copy the strings over. */
5142 for (i
= 0, j
= 0; i
< max
; i
++)
5145 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5150 create_at_file (argv
);
5153 for (i
= 0; i
< max
; i
++)
5155 store_arg (outfiles
[i
], 0, 0);
5160 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5165 this_is_library_file
= 1;
5169 this_is_linker_script
= 1;
5173 outfiles
[input_file_number
] = NULL
;
5177 this_is_output_file
= 1;
5182 unsigned int cur_index
= argbuf
.length ();
5183 /* Handle the {...} following the %W. */
5185 fatal_error ("spec %qs has invalid %<%%W%c%>", spec
, *p
);
5186 p
= handle_braces (p
+ 1);
5190 /* If any args were output, mark the last one for deletion
5192 if (argbuf
.length () != cur_index
)
5193 record_temp_file (argbuf
.last (), 0, 1);
5197 /* %x{OPTION} records OPTION for %X to output. */
5205 /* Skip past the option value and make a copy. */
5207 fatal_error ("spec %qs has invalid %<%%x%c%>", spec
, *p
);
5210 string
= save_string (p1
+ 1, p
- p1
- 2);
5212 /* See if we already recorded this option. */
5213 FOR_EACH_VEC_ELT (linker_options
, ix
, opt
)
5214 if (! strcmp (string
, opt
))
5220 /* This option is new; add it. */
5221 add_linker_option (string
, strlen (string
));
5226 /* Dump out the options accumulated previously using %x. */
5228 do_specs_vec (linker_options
);
5231 /* Dump out the options accumulated previously using -Wa,. */
5233 do_specs_vec (assembler_options
);
5236 /* Dump out the options accumulated previously using -Wp,. */
5238 do_specs_vec (preprocessor_options
);
5241 /* Here are digits and numbers that just process
5242 a certain constant string as a spec. */
5245 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5251 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5257 value
= do_spec_1 (asm_spec
, 0, NULL
);
5263 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5270 const char *const spec
5271 = (input_file_compiler
->cpp_spec
5272 ? input_file_compiler
->cpp_spec
5274 value
= do_spec_1 (spec
, 0, NULL
);
5281 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5287 value
= do_spec_1 (link_spec
, 0, NULL
);
5293 value
= do_spec_1 (lib_spec
, 0, NULL
);
5299 if (multilib_os_dir
== NULL
)
5300 obstack_1grow (&obstack
, '.');
5302 obstack_grow (&obstack
, multilib_os_dir
,
5303 strlen (multilib_os_dir
));
5307 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5313 /* We assume there is a directory
5314 separator at the end of this string. */
5315 if (target_system_root
)
5317 obstack_grow (&obstack
, target_system_root
,
5318 strlen (target_system_root
));
5319 if (target_sysroot_suffix
)
5320 obstack_grow (&obstack
, target_sysroot_suffix
,
5321 strlen (target_sysroot_suffix
));
5326 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5331 /* Here we define characters other than letters and digits. */
5334 p
= handle_braces (p
);
5340 p
= handle_spec_function (p
, NULL
);
5346 obstack_1grow (&obstack
, '%');
5353 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5355 suffix_subst
= save_string (p
- 1, len
+ 1);
5360 /* Henceforth ignore the option(s) matching the pattern
5366 int have_wildcard
= 0;
5371 switch_option
= SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
;
5373 switch_option
= SWITCH_IGNORE
;
5375 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5378 if (p
[len
-1] == '*')
5381 for (i
= 0; i
< n_switches
; i
++)
5382 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5383 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5385 switches
[i
].live_cond
|= switch_option
;
5386 /* User switch be validated from validate_all_switches.
5387 when the definition is seen from the spec file.
5388 If not defined anywhere, will be rejected. */
5389 if (switches
[i
].known
)
5390 switches
[i
].validated
= true;
5398 if (soft_matched_part
)
5400 if (soft_matched_part
[0])
5401 do_spec_1 (soft_matched_part
, 1, NULL
);
5402 /* Only insert a space after the substitution if it is at the
5403 end of the current sequence. So if:
5405 "%{foo=*:bar%*}%{foo=*:one%*two}"
5407 matches -foo=hello then it will produce:
5409 barhello onehellotwo
5411 if (*p
== 0 || *p
== '}')
5412 do_spec_1 (" ", 0, NULL
);
5415 /* Catch the case where a spec string contains something like
5416 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5417 hand side of the :. */
5418 error ("spec failure: %<%%*%> has not been initialized by pattern match");
5421 /* Process a string found as the value of a spec given by name.
5422 This feature allows individual machine descriptions
5423 to add and use their own specs. */
5426 const char *name
= p
;
5427 struct spec_list
*sl
;
5430 /* The string after the S/P is the name of a spec that is to be
5432 while (*p
&& *p
!= ')')
5435 /* See if it's in the list. */
5436 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5437 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5439 name
= *(sl
->ptr_spec
);
5441 fnotice (stderr
, "Processing spec (%s), which is '%s'\n",
5449 value
= do_spec_1 (name
, 0, NULL
);
5454 /* Discard the closing paren. */
5461 error ("spec failure: unrecognized spec option %qc", c
);
5467 /* Backslash: treat next character as ordinary. */
5472 /* Ordinary character: put it into the current argument. */
5473 obstack_1grow (&obstack
, c
);
5477 /* End of string. If we are processing a spec function, we need to
5478 end any pending argument. */
5479 if (processing_spec_function
)
5485 /* Look up a spec function. */
5487 static const struct spec_function
*
5488 lookup_spec_function (const char *name
)
5490 const struct spec_function
*sf
;
5492 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5493 if (strcmp (sf
->name
, name
) == 0)
5499 /* Evaluate a spec function. */
5502 eval_spec_function (const char *func
, const char *args
)
5504 const struct spec_function
*sf
;
5505 const char *funcval
;
5507 /* Saved spec processing context. */
5508 vec
<const_char_p
> save_argbuf
;
5511 int save_delete_this_arg
;
5512 int save_this_is_output_file
;
5513 int save_this_is_library_file
;
5514 int save_input_from_pipe
;
5515 int save_this_is_linker_script
;
5516 const char *save_suffix_subst
;
5518 int save_growing_size
;
5519 void *save_growing_value
= NULL
;
5521 sf
= lookup_spec_function (func
);
5523 fatal_error ("unknown spec function %qs", func
);
5525 /* Push the spec processing context. */
5526 save_argbuf
= argbuf
;
5528 save_arg_going
= arg_going
;
5529 save_delete_this_arg
= delete_this_arg
;
5530 save_this_is_output_file
= this_is_output_file
;
5531 save_this_is_library_file
= this_is_library_file
;
5532 save_this_is_linker_script
= this_is_linker_script
;
5533 save_input_from_pipe
= input_from_pipe
;
5534 save_suffix_subst
= suffix_subst
;
5536 /* If we have some object growing now, finalize it so the args and function
5537 eval proceed from a cleared context. This is needed to prevent the first
5538 constructed arg from mistakenly including the growing value. We'll push
5539 this value back on the obstack once the function evaluation is done, to
5540 restore a consistent processing context for our caller. This is fine as
5541 the address of growing objects isn't guaranteed to remain stable until
5542 they are finalized, and we expect this situation to be rare enough for
5543 the extra copy not to be an issue. */
5544 save_growing_size
= obstack_object_size (&obstack
);
5545 if (save_growing_size
> 0)
5546 save_growing_value
= obstack_finish (&obstack
);
5548 /* Create a new spec processing context, and build the function
5552 if (do_spec_2 (args
) < 0)
5553 fatal_error ("error in args to spec function %qs", func
);
5555 /* argbuf_index is an index for the next argument to be inserted, and
5556 so contains the count of the args already inserted. */
5558 funcval
= (*sf
->func
) (argbuf
.length (),
5561 /* Pop the spec processing context. */
5563 argbuf
= save_argbuf
;
5565 arg_going
= save_arg_going
;
5566 delete_this_arg
= save_delete_this_arg
;
5567 this_is_output_file
= save_this_is_output_file
;
5568 this_is_library_file
= save_this_is_library_file
;
5569 this_is_linker_script
= save_this_is_linker_script
;
5570 input_from_pipe
= save_input_from_pipe
;
5571 suffix_subst
= save_suffix_subst
;
5573 if (save_growing_size
> 0)
5574 obstack_grow (&obstack
, save_growing_value
, save_growing_size
);
5579 /* Handle a spec function call of the form:
5583 ARGS is processed as a spec in a separate context and split into an
5584 argument vector in the normal fashion. The function returns a string
5585 containing a spec which we then process in the caller's context, or
5586 NULL if no processing is required.
5588 If RETVAL_NONNULL is not NULL, then store a bool whether function
5589 returned non-NULL. */
5592 handle_spec_function (const char *p
, bool *retval_nonnull
)
5595 const char *endp
, *funcval
;
5598 processing_spec_function
++;
5600 /* Get the function name. */
5601 for (endp
= p
; *endp
!= '\0'; endp
++)
5603 if (*endp
== '(') /* ) */
5605 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5606 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5607 fatal_error ("malformed spec function name");
5609 if (*endp
!= '(') /* ) */
5610 fatal_error ("no arguments for spec function");
5611 func
= save_string (p
, endp
- p
);
5614 /* Get the arguments. */
5615 for (count
= 0; *endp
!= '\0'; endp
++)
5624 else if (*endp
== '(') /* ) */
5629 fatal_error ("malformed spec function arguments");
5630 args
= save_string (p
, endp
- p
);
5633 /* p now points to just past the end of the spec function expression. */
5635 funcval
= eval_spec_function (func
, args
);
5636 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5639 *retval_nonnull
= funcval
!= NULL
;
5644 processing_spec_function
--;
5649 /* Inline subroutine of handle_braces. Returns true if the current
5650 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5652 input_suffix_matches (const char *atom
, const char *end_atom
)
5654 return (input_suffix
5655 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5656 && input_suffix
[end_atom
- atom
] == '\0');
5659 /* Subroutine of handle_braces. Returns true if the current
5660 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
5662 input_spec_matches (const char *atom
, const char *end_atom
)
5664 return (input_file_compiler
5665 && input_file_compiler
->suffix
5666 && input_file_compiler
->suffix
[0] != '\0'
5667 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
5669 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
5672 /* Subroutine of handle_braces. Returns true if a switch
5673 matching the atom bracketed by ATOM and END_ATOM appeared on the
5676 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5679 int len
= end_atom
- atom
;
5680 int plen
= starred
? len
: -1;
5682 for (i
= 0; i
< n_switches
; i
++)
5683 if (!strncmp (switches
[i
].part1
, atom
, len
)
5684 && (starred
|| switches
[i
].part1
[len
] == '\0')
5685 && check_live_switch (i
, plen
))
5688 /* Check if a switch with separated form matching the atom.
5689 We check -D and -U switches. */
5690 else if (switches
[i
].args
!= 0)
5692 if ((*switches
[i
].part1
== 'D' || *switches
[i
].part1
== 'U')
5693 && *switches
[i
].part1
== atom
[0])
5695 if (!strncmp (switches
[i
].args
[0], &atom
[1], len
- 1)
5696 && (starred
|| (switches
[i
].part1
[1] == '\0'
5697 && switches
[i
].args
[0][len
- 1] == '\0'))
5698 && check_live_switch (i
, (starred
? 1 : -1)))
5706 /* Inline subroutine of handle_braces. Mark all of the switches which
5707 match ATOM (extends to END_ATOM; STARRED indicates whether there
5708 was a star after the atom) for later processing. */
5710 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5713 int len
= end_atom
- atom
;
5714 int plen
= starred
? len
: -1;
5716 for (i
= 0; i
< n_switches
; i
++)
5717 if (!strncmp (switches
[i
].part1
, atom
, len
)
5718 && (starred
|| switches
[i
].part1
[len
] == '\0')
5719 && check_live_switch (i
, plen
))
5720 switches
[i
].ordering
= 1;
5723 /* Inline subroutine of handle_braces. Process all the currently
5724 marked switches through give_switch, and clear the marks. */
5726 process_marked_switches (void)
5730 for (i
= 0; i
< n_switches
; i
++)
5731 if (switches
[i
].ordering
== 1)
5733 switches
[i
].ordering
= 0;
5738 /* Handle a %{ ... } construct. P points just inside the leading {.
5739 Returns a pointer one past the end of the brace block, or 0
5740 if we call do_spec_1 and that returns -1. */
5743 handle_braces (const char *p
)
5745 const char *atom
, *end_atom
;
5746 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5747 const char *orig
= p
;
5755 bool a_must_be_last
= false;
5756 bool ordered_set
= false;
5757 bool disjunct_set
= false;
5758 bool disj_matched
= false;
5759 bool disj_starred
= true;
5760 bool n_way_choice
= false;
5761 bool n_way_matched
= false;
5763 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5770 /* Scan one "atom" (S in the description above of %{}, possibly
5771 with '!', '.', '@', ',', or '*' modifiers). */
5773 a_is_suffix
= false;
5774 a_is_starred
= false;
5775 a_is_negated
= false;
5776 a_is_spectype
= false;
5780 p
++, a_is_negated
= true;
5783 if (*p
== '%' && p
[1] == ':')
5787 p
= handle_spec_function (p
+ 2, &a_matched
);
5792 p
++, a_is_suffix
= true;
5794 p
++, a_is_spectype
= true;
5797 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
5798 || *p
== ',' || *p
== '.' || *p
== '@')
5803 p
++, a_is_starred
= 1;
5810 /* Substitute the switch(es) indicated by the current atom. */
5812 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5813 || a_is_spectype
|| atom
== end_atom
)
5816 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5819 process_marked_switches ();
5823 /* Substitute some text if the current atom appears as a switch
5825 disjunct_set
= true;
5829 if (atom
&& atom
== end_atom
)
5831 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5832 || a_is_negated
|| a_is_suffix
|| a_is_spectype
5836 /* An empty term may appear as the last choice of an
5837 N-way choice set; it means "otherwise". */
5838 a_must_be_last
= true;
5839 disj_matched
= !n_way_matched
;
5840 disj_starred
= false;
5844 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
5848 disj_starred
= false;
5850 /* Don't bother testing this atom if we already have a
5852 if (!disj_matched
&& !n_way_matched
)
5855 /* a_matched is already set by handle_spec_function. */;
5856 else if (a_is_suffix
)
5857 a_matched
= input_suffix_matches (atom
, end_atom
);
5858 else if (a_is_spectype
)
5859 a_matched
= input_spec_matches (atom
, end_atom
);
5861 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5863 if (a_matched
!= a_is_negated
)
5865 disj_matched
= true;
5867 d_end_atom
= end_atom
;
5874 /* Found the body, that is, the text to substitute if the
5875 current disjunction matches. */
5876 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5877 disj_matched
&& !n_way_matched
);
5881 /* If we have an N-way choice, reset state for the next
5885 n_way_choice
= true;
5886 n_way_matched
|= disj_matched
;
5887 disj_matched
= false;
5888 disj_starred
= true;
5889 d_atom
= d_end_atom
= NULL
;
5898 while (*p
++ != '}');
5903 fatal_error ("braced spec %qs is invalid at %qc", orig
, *p
);
5908 /* Subroutine of handle_braces. Scan and process a brace substitution body
5909 (X in the description of %{} syntax). P points one past the colon;
5910 ATOM and END_ATOM bracket the first atom which was found to be true
5911 (present) in the current disjunction; STARRED indicates whether all
5912 the atoms in the current disjunction were starred (for syntax validation);
5913 MATCHED indicates whether the disjunction matched or not, and therefore
5914 whether or not the body is to be processed through do_spec_1 or just
5915 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5919 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5920 int starred
, int matched
)
5922 const char *body
, *end_body
;
5923 unsigned int nesting_level
;
5924 bool have_subst
= false;
5926 /* Locate the closing } or ;, honoring nested braces.
5927 Trim trailing whitespace. */
5936 if (!--nesting_level
)
5939 else if (*p
== ';' && nesting_level
== 1)
5941 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5943 else if (*p
== '\0')
5949 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5952 if (have_subst
&& !starred
)
5957 /* Copy the substitution body to permanent storage and execute it.
5958 If have_subst is false, this is a simple matter of running the
5959 body through do_spec_1... */
5960 char *string
= save_string (body
, end_body
- body
);
5963 if (do_spec_1 (string
, 0, NULL
) < 0)
5968 /* ... but if have_subst is true, we have to process the
5969 body once for each matching switch, with %* set to the
5970 variant part of the switch. */
5971 unsigned int hard_match_len
= end_atom
- atom
;
5974 for (i
= 0; i
< n_switches
; i
++)
5975 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5976 && check_live_switch (i
, hard_match_len
))
5978 if (do_spec_1 (string
, 0,
5979 &switches
[i
].part1
[hard_match_len
]) < 0)
5981 /* Pass any arguments this switch has. */
5983 suffix_subst
= NULL
;
5991 fatal_error ("braced spec body %qs is invalid", body
);
5994 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5995 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5996 spec, or -1 if either exact match or %* is used.
5998 A -O switch is obsoleted by a later -O switch. A -f, -g, -m, or -W switch
5999 whose value does not begin with "no-" is obsoleted by the same value
6000 with the "no-", similarly for a switch with the "no-" prefix. */
6003 check_live_switch (int switchnum
, int prefix_length
)
6005 const char *name
= switches
[switchnum
].part1
;
6008 /* If we already processed this switch and determined if it was
6009 live or not, return our past determination. */
6010 if (switches
[switchnum
].live_cond
!= 0)
6011 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
6012 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
6013 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
6016 /* In the common case of {<at-most-one-letter>*}, a negating
6017 switch would always match, so ignore that case. We will just
6018 send the conflicting switches to the compiler phase. */
6019 if (prefix_length
>= 0 && prefix_length
<= 1)
6022 /* Now search for duplicate in a manner that depends on the name. */
6026 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6027 if (switches
[i
].part1
[0] == 'O')
6029 switches
[switchnum
].validated
= true;
6030 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6035 case 'W': case 'f': case 'm': case 'g':
6036 if (! strncmp (name
+ 1, "no-", 3))
6038 /* We have Xno-YYY, search for XYYY. */
6039 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6040 if (switches
[i
].part1
[0] == name
[0]
6041 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6043 /* --specs are validated with the validate_switches mechanism. */
6044 if (switches
[switchnum
].known
)
6045 switches
[switchnum
].validated
= true;
6046 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6052 /* We have XYYY, search for Xno-YYY. */
6053 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6054 if (switches
[i
].part1
[0] == name
[0]
6055 && switches
[i
].part1
[1] == 'n'
6056 && switches
[i
].part1
[2] == 'o'
6057 && switches
[i
].part1
[3] == '-'
6058 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6060 /* --specs are validated with the validate_switches mechanism. */
6061 if (switches
[switchnum
].known
)
6062 switches
[switchnum
].validated
= true;
6063 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6070 /* Otherwise the switch is live. */
6071 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6075 /* Pass a switch to the current accumulating command
6076 in the same form that we received it.
6077 SWITCHNUM identifies the switch; it is an index into
6078 the vector of switches gcc received, which is `switches'.
6079 This cannot fail since it never finishes a command line.
6081 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6084 give_switch (int switchnum
, int omit_first_word
)
6086 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6089 if (!omit_first_word
)
6091 do_spec_1 ("-", 0, NULL
);
6092 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6095 if (switches
[switchnum
].args
!= 0)
6098 for (p
= switches
[switchnum
].args
; *p
; p
++)
6100 const char *arg
= *p
;
6102 do_spec_1 (" ", 0, NULL
);
6105 unsigned length
= strlen (arg
);
6108 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6109 if (arg
[length
] == '.')
6111 (CONST_CAST (char *, arg
))[length
] = 0;
6115 do_spec_1 (arg
, 1, NULL
);
6117 (CONST_CAST (char *, arg
))[length
] = '.';
6118 do_spec_1 (suffix_subst
, 1, NULL
);
6121 do_spec_1 (arg
, 1, NULL
);
6125 do_spec_1 (" ", 0, NULL
);
6126 switches
[switchnum
].validated
= true;
6129 /* Search for a file named NAME trying various prefixes including the
6130 user's -B prefix and some standard ones.
6131 Return the absolute file name found. If nothing is found, return NAME. */
6134 find_file (const char *name
)
6136 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
6137 return newname
? newname
: name
;
6140 /* Determine whether a directory exists. If LINKER, return 0 for
6141 certain fixed names not needed by the linker. */
6144 is_directory (const char *path1
, bool linker
)
6151 /* Ensure the string ends with "/.". The resulting path will be a
6152 directory even if the given path is a symbolic link. */
6153 len1
= strlen (path1
);
6154 path
= (char *) alloca (3 + len1
);
6155 memcpy (path
, path1
, len1
);
6157 if (!IS_DIR_SEPARATOR (cp
[-1]))
6158 *cp
++ = DIR_SEPARATOR
;
6162 /* Exclude directories that the linker is known to search. */
6164 && IS_DIR_SEPARATOR (path
[0])
6166 && filename_ncmp (path
+ 1, "lib", 3) == 0)
6168 && filename_ncmp (path
+ 1, "usr", 3) == 0
6169 && IS_DIR_SEPARATOR (path
[4])
6170 && filename_ncmp (path
+ 5, "lib", 3) == 0)))
6173 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6176 /* Set up the various global variables to indicate that we're processing
6177 the input file named FILENAME. */
6180 set_input (const char *filename
)
6184 gcc_input_filename
= filename
;
6185 input_filename_length
= strlen (gcc_input_filename
);
6186 input_basename
= lbasename (gcc_input_filename
);
6188 /* Find a suffix starting with the last period,
6189 and set basename_length to exclude that suffix. */
6190 basename_length
= strlen (input_basename
);
6191 suffixed_basename_length
= basename_length
;
6192 p
= input_basename
+ basename_length
;
6193 while (p
!= input_basename
&& *p
!= '.')
6195 if (*p
== '.' && p
!= input_basename
)
6197 basename_length
= p
- input_basename
;
6198 input_suffix
= p
+ 1;
6203 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6204 we will need to do a stat on the gcc_input_filename. The
6205 INPUT_STAT_SET signals that the stat is needed. */
6209 /* On fatal signals, delete all the temporary files. */
6212 fatal_signal (int signum
)
6214 signal (signum
, SIG_DFL
);
6215 delete_failure_queue ();
6216 delete_temp_files ();
6217 /* Get the same signal again, this time not handled,
6218 so its normal effect occurs. */
6219 kill (getpid (), signum
);
6222 /* Compare the contents of the two files named CMPFILE[0] and
6223 CMPFILE[1]. Return zero if they're identical, nonzero
6227 compare_files (char *cmpfile
[])
6230 FILE *temp
[2] = { NULL
, NULL
};
6236 void *map
[2] = { NULL
, NULL
};
6238 for (i
= 0; i
< 2; i
++)
6242 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
6244 error ("%s: could not determine length of compare-debug file %s",
6245 gcc_input_filename
, cmpfile
[i
]);
6250 length
[i
] = st
.st_size
;
6253 if (!ret
&& length
[0] != length
[1])
6255 error ("%s: -fcompare-debug failure (length)", gcc_input_filename
);
6260 for (i
= 0; i
< 2; i
++)
6262 int fd
= open (cmpfile
[i
], O_RDONLY
);
6265 error ("%s: could not open compare-debug file %s",
6266 gcc_input_filename
, cmpfile
[i
]);
6271 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
6274 if (map
[i
] == (void *) MAP_FAILED
)
6283 if (memcmp (map
[0], map
[1], length
[0]) != 0)
6285 error ("%s: -fcompare-debug failure", gcc_input_filename
);
6290 for (i
= 0; i
< 2; i
++)
6292 munmap ((caddr_t
) map
[i
], length
[i
]);
6301 for (i
= 0; i
< 2; i
++)
6303 temp
[i
] = fopen (cmpfile
[i
], "r");
6306 error ("%s: could not open compare-debug file %s",
6307 gcc_input_filename
, cmpfile
[i
]);
6313 if (!ret
&& temp
[0] && temp
[1])
6317 c0
= fgetc (temp
[0]);
6318 c1
= fgetc (temp
[1]);
6322 error ("%s: -fcompare-debug failure",
6323 gcc_input_filename
);
6332 for (i
= 1; i
>= 0; i
--)
6341 extern int main (int, char **);
6344 main (int argc
, char **argv
)
6348 int linker_was_run
= 0;
6349 int lang_n_infiles
= 0;
6350 int num_linker_inputs
= 0;
6351 char *explicit_link_files
;
6353 char *lto_wrapper_file
;
6355 struct user_specs
*uptr
;
6356 char **old_argv
= argv
;
6357 struct cl_decoded_option
*decoded_options
;
6358 unsigned int decoded_options_count
;
6360 p
= argv
[0] + strlen (argv
[0]);
6361 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6365 xmalloc_set_program_name (progname
);
6367 expandargv (&argc
, &argv
);
6369 /* Determine if any expansions were made. */
6370 if (argv
!= old_argv
)
6371 at_file_supplied
= true;
6373 /* Register the language-independent parameters. */
6374 global_init_params ();
6377 init_options_struct (&global_options
, &global_options_set
);
6379 decode_cmdline_options_to_array (argc
, CONST_CAST2 (const char **, char **,
6382 &decoded_options
, &decoded_options_count
);
6384 /* Unlock the stdio streams. */
6385 unlock_std_streams ();
6387 gcc_init_libintl ();
6389 diagnostic_initialize (global_dc
, 0);
6391 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6392 /* Perform host dependent initialization when needed. */
6393 GCC_DRIVER_HOST_INITIALIZATION
;
6396 if (atexit (delete_temp_files
) != 0)
6397 fatal_error ("atexit failed");
6399 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6400 signal (SIGINT
, fatal_signal
);
6402 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6403 signal (SIGHUP
, fatal_signal
);
6405 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6406 signal (SIGTERM
, fatal_signal
);
6408 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6409 signal (SIGPIPE
, fatal_signal
);
6412 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6413 receive the signal. A different setting is inheritable */
6414 signal (SIGCHLD
, SIG_DFL
);
6417 /* Parsing and gimplification sometimes need quite large stack.
6418 Increase stack size limits if possible. */
6419 stack_limit_increase (64 * 1024 * 1024);
6421 /* Allocate the argument vector. */
6424 obstack_init (&obstack
);
6426 /* Build multilib_select, et. al from the separate lines that make up each
6427 multilib selection. */
6429 const char *const *q
= multilib_raw
;
6432 obstack_init (&multilib_obstack
);
6433 while ((p
= *q
++) != (char *) 0)
6434 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6436 obstack_1grow (&multilib_obstack
, 0);
6437 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6439 q
= multilib_matches_raw
;
6440 while ((p
= *q
++) != (char *) 0)
6441 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6443 obstack_1grow (&multilib_obstack
, 0);
6444 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6446 q
= multilib_exclusions_raw
;
6447 while ((p
= *q
++) != (char *) 0)
6448 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6450 obstack_1grow (&multilib_obstack
, 0);
6451 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6453 q
= multilib_reuse_raw
;
6454 while ((p
= *q
++) != (char *) 0)
6455 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6457 obstack_1grow (&multilib_obstack
, 0);
6458 multilib_reuse
= XOBFINISH (&multilib_obstack
, const char *);
6461 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6464 obstack_1grow (&multilib_obstack
, ' ');
6465 obstack_grow (&multilib_obstack
,
6466 multilib_defaults_raw
[i
],
6467 strlen (multilib_defaults_raw
[i
]));
6471 obstack_1grow (&multilib_obstack
, 0);
6472 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6475 #ifdef INIT_ENVIRONMENT
6476 /* Set up any other necessary machine specific environment variables. */
6477 xputenv (INIT_ENVIRONMENT
);
6480 /* Make a table of what switches there are (switches, n_switches).
6481 Make a table of specified input files (infiles, n_infiles).
6482 Decode switches that are handled locally. */
6484 process_command (decoded_options_count
, decoded_options
);
6486 /* Initialize the vector of specs to just the default.
6487 This means one element containing 0s, as a terminator. */
6489 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
6490 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6491 n_compilers
= n_default_compilers
;
6493 /* Read specs from a file if there is one. */
6495 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6496 spec_version
, dir_separator_str
, NULL
);
6497 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6499 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6500 /* Read the specs file unless it is a default one. */
6501 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6502 read_specs (specs_file
, true, false);
6506 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6507 for any override of as, ld and libraries. */
6508 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
6509 + strlen (just_machine_suffix
) + sizeof ("specs"));
6511 strcpy (specs_file
, standard_exec_prefix
);
6512 strcat (specs_file
, just_machine_suffix
);
6513 strcat (specs_file
, "specs");
6514 if (access (specs_file
, R_OK
) == 0)
6515 read_specs (specs_file
, true, false);
6517 /* Process any configure-time defaults specified for the command line
6518 options, via OPTION_DEFAULT_SPECS. */
6519 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6520 do_option_spec (option_default_specs
[i
].name
,
6521 option_default_specs
[i
].spec
);
6523 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6524 of the command line. */
6526 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6527 do_self_spec (driver_self_specs
[i
]);
6529 /* If not cross-compiling, look for executables in the standard
6531 if (*cross_compile
== '0')
6533 if (*md_exec_prefix
)
6535 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6536 PREFIX_PRIORITY_LAST
, 0, 0);
6540 /* Process sysroot_suffix_spec. */
6541 if (*sysroot_suffix_spec
!= 0
6542 && !no_sysroot_suffix
6543 && do_spec_2 (sysroot_suffix_spec
) == 0)
6545 if (argbuf
.length () > 1)
6546 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6547 else if (argbuf
.length () == 1)
6548 target_sysroot_suffix
= xstrdup (argbuf
.last ());
6551 #ifdef HAVE_LD_SYSROOT
6552 /* Pass the --sysroot option to the linker, if it supports that. If
6553 there is a sysroot_suffix_spec, it has already been processed by
6554 this point, so target_system_root really is the system root we
6556 if (target_system_root
)
6558 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6559 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6560 set_spec ("link", XOBFINISH (&obstack
, const char *), false);
6564 /* Process sysroot_hdrs_suffix_spec. */
6565 if (*sysroot_hdrs_suffix_spec
!= 0
6566 && !no_sysroot_suffix
6567 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6569 if (argbuf
.length () > 1)
6570 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6571 else if (argbuf
.length () == 1)
6572 target_sysroot_hdrs_suffix
= xstrdup (argbuf
.last ());
6575 /* Look for startfiles in the standard places. */
6576 if (*startfile_prefix_spec
!= 0
6577 && do_spec_2 (startfile_prefix_spec
) == 0
6578 && do_spec_1 (" ", 0, NULL
) == 0)
6582 FOR_EACH_VEC_ELT (argbuf
, ndx
, arg
)
6583 add_sysrooted_prefix (&startfile_prefixes
, arg
, "BINUTILS",
6584 PREFIX_PRIORITY_LAST
, 0, 1);
6586 /* We should eventually get rid of all these and stick to
6587 startfile_prefix_spec exclusively. */
6588 else if (*cross_compile
== '0' || target_system_root
)
6590 if (*md_startfile_prefix
)
6591 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6592 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6594 if (*md_startfile_prefix_1
)
6595 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6596 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6598 /* If standard_startfile_prefix is relative, base it on
6599 standard_exec_prefix. This lets us move the installed tree
6600 as a unit. If GCC_EXEC_PREFIX is defined, base
6601 standard_startfile_prefix on that as well.
6603 If the prefix is relative, only search it for native compilers;
6604 otherwise we will search a directory containing host libraries. */
6605 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6606 add_sysrooted_prefix (&startfile_prefixes
,
6607 standard_startfile_prefix
, "BINUTILS",
6608 PREFIX_PRIORITY_LAST
, 0, 1);
6609 else if (*cross_compile
== '0')
6611 add_prefix (&startfile_prefixes
,
6612 concat (gcc_exec_prefix
6613 ? gcc_exec_prefix
: standard_exec_prefix
,
6615 standard_startfile_prefix
, NULL
),
6616 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6619 /* Sysrooted prefixes are relocated because target_system_root is
6620 also relocated by gcc_exec_prefix. */
6621 if (*standard_startfile_prefix_1
)
6622 add_sysrooted_prefix (&startfile_prefixes
,
6623 standard_startfile_prefix_1
, "BINUTILS",
6624 PREFIX_PRIORITY_LAST
, 0, 1);
6625 if (*standard_startfile_prefix_2
)
6626 add_sysrooted_prefix (&startfile_prefixes
,
6627 standard_startfile_prefix_2
, "BINUTILS",
6628 PREFIX_PRIORITY_LAST
, 0, 1);
6631 /* Process any user specified specs in the order given on the command
6633 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6635 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6637 read_specs (filename
? filename
: uptr
->filename
, false, true);
6640 /* Process any user self specs. */
6642 struct spec_list
*sl
;
6643 for (sl
= specs
; sl
; sl
= sl
->next
)
6644 if (sl
->name_len
== sizeof "self_spec" - 1
6645 && !strcmp (sl
->name
, "self_spec"))
6646 do_self_spec (*sl
->ptr_spec
);
6651 enum save_temps save
;
6653 if (!compare_debug_second
)
6655 n_switches_debug_check
[1] = n_switches
;
6656 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
6657 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
6660 do_self_spec ("%:compare-debug-self-opt()");
6661 n_switches_debug_check
[0] = n_switches
;
6662 n_switches_alloc_debug_check
[0] = n_switches_alloc
;
6663 switches_debug_check
[0] = switches
;
6665 n_switches
= n_switches_debug_check
[1];
6666 n_switches_alloc
= n_switches_alloc_debug_check
[1];
6667 switches
= switches_debug_check
[1];
6670 /* Avoid crash when computing %j in this early. */
6671 save
= save_temps_flag
;
6672 save_temps_flag
= SAVE_TEMPS_NONE
;
6674 compare_debug
= -compare_debug
;
6675 do_self_spec ("%:compare-debug-self-opt()");
6677 save_temps_flag
= save
;
6679 if (!compare_debug_second
)
6681 n_switches_debug_check
[1] = n_switches
;
6682 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
6683 switches_debug_check
[1] = switches
;
6684 compare_debug
= -compare_debug
;
6685 n_switches
= n_switches_debug_check
[0];
6686 n_switches_alloc
= n_switches_debug_check
[0];
6687 switches
= switches_debug_check
[0];
6692 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6693 if (gcc_exec_prefix
)
6694 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6695 spec_version
, dir_separator_str
, NULL
);
6697 /* Now we have the specs.
6698 Set the `valid' bits for switches that match anything in any spec. */
6700 validate_all_switches ();
6702 /* Now that we have the switches and the specs, set
6703 the subdirectory based on the options. */
6704 set_multilib_dir ();
6706 /* Set up to remember the pathname of gcc and any options
6707 needed for collect. We use argv[0] instead of progname because
6708 we need the complete pathname. */
6709 obstack_init (&collect_obstack
);
6710 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6711 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6712 xputenv (XOBFINISH (&collect_obstack
, char *));
6714 /* Set up to remember the pathname of the lto wrapper. */
6717 lto_wrapper_file
= NULL
;
6719 lto_wrapper_file
= find_a_file (&exec_prefixes
, "lto-wrapper",
6721 if (lto_wrapper_file
)
6723 lto_wrapper_file
= convert_white_space (lto_wrapper_file
);
6724 lto_wrapper_spec
= lto_wrapper_file
;
6725 obstack_init (&collect_obstack
);
6726 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
6727 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
6728 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
6729 strlen (lto_wrapper_spec
) + 1);
6730 xputenv (XOBFINISH (&collect_obstack
, char *));
6733 /* Reject switches that no pass was interested in. */
6735 for (i
= 0; (int) i
< n_switches
; i
++)
6736 if (! switches
[i
].validated
)
6737 error ("unrecognized command line option %<-%s%>", switches
[i
].part1
);
6739 /* Obey some of the options. */
6741 if (print_search_dirs
)
6743 printf (_("install: %s%s\n"),
6744 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
6745 gcc_exec_prefix
? "" : machine_suffix
);
6746 printf (_("programs: %s\n"),
6747 build_search_list (&exec_prefixes
, "", false, false));
6748 printf (_("libraries: %s\n"),
6749 build_search_list (&startfile_prefixes
, "", false, true));
6753 if (print_file_name
)
6755 printf ("%s\n", find_file (print_file_name
));
6759 if (print_prog_name
)
6761 if (use_ld
!= NULL
&& ! strcmp (print_prog_name
, "ld"))
6763 /* Append USE_LD to to the default linker. */
6764 #ifdef DEFAULT_LINKER
6766 # ifdef HAVE_HOST_EXECUTABLE_SUFFIX
6767 int len
= (sizeof (DEFAULT_LINKER
)
6768 - sizeof (HOST_EXECUTABLE_SUFFIX
));
6772 char *default_linker
= xstrdup (DEFAULT_LINKER
);
6773 /* Strip HOST_EXECUTABLE_SUFFIX if DEFAULT_LINKER contains
6774 HOST_EXECUTABLE_SUFFIX. */
6775 if (! strcmp (&default_linker
[len
], HOST_EXECUTABLE_SUFFIX
))
6777 default_linker
[len
] = '\0';
6778 ld
= concat (default_linker
, use_ld
,
6779 HOST_EXECUTABLE_SUFFIX
, NULL
);
6784 ld
= concat (DEFAULT_LINKER
, use_ld
, NULL
);
6785 if (access (ld
, X_OK
) == 0)
6787 printf ("%s\n", ld
);
6791 print_prog_name
= concat (print_prog_name
, use_ld
, NULL
);
6793 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6794 printf ("%s\n", (newname
? newname
: print_prog_name
));
6798 if (print_multi_lib
)
6800 print_multilib_info ();
6804 if (print_multi_directory
)
6806 if (multilib_dir
== NULL
)
6809 printf ("%s\n", multilib_dir
);
6813 if (print_multiarch
)
6815 if (multiarch_dir
== NULL
)
6818 printf ("%s\n", multiarch_dir
);
6824 if (target_system_root
)
6826 if (target_sysroot_suffix
)
6827 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
6829 printf ("%s\n", target_system_root
);
6834 if (print_multi_os_directory
)
6836 if (multilib_os_dir
== NULL
)
6839 printf ("%s\n", multilib_os_dir
);
6843 if (print_sysroot_headers_suffix
)
6845 if (*sysroot_hdrs_suffix_spec
)
6847 printf("%s\n", (target_sysroot_hdrs_suffix
6848 ? target_sysroot_hdrs_suffix
6853 /* The error status indicates that only one set of fixed
6854 headers should be built. */
6855 fatal_error ("not configured with sysroot headers suffix");
6858 if (print_help_list
)
6864 printf (_("\nFor bug reporting instructions, please see:\n"));
6865 printf ("%s.\n", bug_report_url
);
6870 /* We do not exit here. Instead we have created a fake input file
6871 called 'help-dummy' which needs to be compiled, and we pass this
6872 on the various sub-processes, along with the --help switch.
6873 Ensure their output appears after ours. */
6874 fputc ('\n', stdout
);
6880 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
6882 printf ("Copyright %s 2014 Free Software Foundation, Inc.\n",
6884 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
6885 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
6890 /* We do not exit here. We use the same mechanism of --help to print
6891 the version of the sub-processes. */
6892 fputc ('\n', stdout
);
6901 fnotice (stderr
, "Target: %s\n", spec_machine
);
6902 fnotice (stderr
, "Configured with: %s\n", configuration_arguments
);
6904 #ifdef THREAD_MODEL_SPEC
6905 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6906 but there's no point in doing all this processing just to get
6907 thread_model back. */
6908 obstack_init (&obstack
);
6909 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6910 obstack_1grow (&obstack
, '\0');
6911 thrmod
= XOBFINISH (&obstack
, const char *);
6913 thrmod
= thread_model
;
6916 fnotice (stderr
, "Thread model: %s\n", thrmod
);
6918 /* compiler_version is truncated at the first space when initialized
6919 from version string, so truncate version_string at the first space
6920 before comparing. */
6921 for (n
= 0; version_string
[n
]; n
++)
6922 if (version_string
[n
] == ' ')
6925 if (! strncmp (version_string
, compiler_version
, n
)
6926 && compiler_version
[n
] == 0)
6927 fnotice (stderr
, "gcc version %s %s\n", version_string
,
6930 fnotice (stderr
, "gcc driver version %s %sexecuting gcc version %s\n",
6931 version_string
, pkgversion_string
, compiler_version
);
6937 if (n_infiles
== added_libraries
)
6938 fatal_error ("no input files");
6943 /* Make a place to record the compiler output file names
6944 that correspond to the input files. */
6947 i
+= lang_specific_extra_outfiles
;
6948 outfiles
= XCNEWVEC (const char *, i
);
6950 /* Record which files were specified explicitly as link input. */
6952 explicit_link_files
= XCNEWVEC (char, n_infiles
);
6954 combine_inputs
= have_o
|| flag_wpa
;
6956 for (i
= 0; (int) i
< n_infiles
; i
++)
6958 const char *name
= infiles
[i
].name
;
6959 struct compiler
*compiler
= lookup_compiler (name
,
6961 infiles
[i
].language
);
6963 if (compiler
&& !(compiler
->combinable
))
6964 combine_inputs
= false;
6966 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6967 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6968 infiles
[i
].incompiler
= compiler
;
6972 input_file_compiler
= compiler
;
6973 infiles
[i
].incompiler
= compiler
;
6977 /* Since there is no compiler for this input file, assume it is a
6979 explicit_link_files
[i
] = 1;
6980 infiles
[i
].incompiler
= NULL
;
6982 infiles
[i
].compiled
= false;
6983 infiles
[i
].preprocessed
= false;
6986 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
6987 fatal_error ("cannot specify -o with -c, -S or -E with multiple files");
6989 for (i
= 0; (int) i
< n_infiles
; i
++)
6991 int this_file_error
= 0;
6993 /* Tell do_spec what to substitute for %i. */
6995 input_file_number
= i
;
6996 set_input (infiles
[i
].name
);
6998 if (infiles
[i
].compiled
)
7001 /* Use the same thing in %o, unless cp->spec says otherwise. */
7003 outfiles
[i
] = gcc_input_filename
;
7005 /* Figure out which compiler from the file's suffix. */
7008 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
7009 infiles
[i
].language
);
7011 if (input_file_compiler
)
7013 /* Ok, we found an applicable compiler. Run its spec. */
7015 if (input_file_compiler
->spec
[0] == '#')
7017 error ("%s: %s compiler not installed on this system",
7018 gcc_input_filename
, &input_file_compiler
->spec
[1]);
7019 this_file_error
= 1;
7025 free (debug_check_temp_file
[0]);
7026 debug_check_temp_file
[0] = NULL
;
7028 free (debug_check_temp_file
[1]);
7029 debug_check_temp_file
[1] = NULL
;
7032 value
= do_spec (input_file_compiler
->spec
);
7033 infiles
[i
].compiled
= true;
7035 this_file_error
= 1;
7036 else if (compare_debug
&& debug_check_temp_file
[0])
7039 inform (0, "recompiling with -fcompare-debug");
7041 compare_debug
= -compare_debug
;
7042 n_switches
= n_switches_debug_check
[1];
7043 n_switches_alloc
= n_switches_alloc_debug_check
[1];
7044 switches
= switches_debug_check
[1];
7046 value
= do_spec (input_file_compiler
->spec
);
7048 compare_debug
= -compare_debug
;
7049 n_switches
= n_switches_debug_check
[0];
7050 n_switches_alloc
= n_switches_alloc_debug_check
[0];
7051 switches
= switches_debug_check
[0];
7055 error ("during -fcompare-debug recompilation");
7056 this_file_error
= 1;
7059 gcc_assert (debug_check_temp_file
[1]
7060 && filename_cmp (debug_check_temp_file
[0],
7061 debug_check_temp_file
[1]));
7064 inform (0, "comparing final insns dumps");
7066 if (compare_files (debug_check_temp_file
))
7067 this_file_error
= 1;
7072 free (debug_check_temp_file
[0]);
7073 debug_check_temp_file
[0] = NULL
;
7075 free (debug_check_temp_file
[1]);
7076 debug_check_temp_file
[1] = NULL
;
7081 /* If this file's name does not contain a recognized suffix,
7082 record it as explicit linker input. */
7085 explicit_link_files
[i
] = 1;
7087 /* Clear the delete-on-failure queue, deleting the files in it
7088 if this compilation failed. */
7090 if (this_file_error
)
7092 delete_failure_queue ();
7095 /* If this compilation succeeded, don't delete those files later. */
7096 clear_failure_queue ();
7099 /* Reset the input file name to the first compile/object file name, for use
7100 with %b in LINK_SPEC. We use the first input file that we can find
7101 a compiler to compile it instead of using infiles.language since for
7102 languages other than C we use aliases that we then lookup later. */
7107 for (i
= 0; i
< n_infiles
; i
++)
7108 if (infiles
[i
].incompiler
7109 || (infiles
[i
].language
&& infiles
[i
].language
[0] != '*'))
7111 set_input (infiles
[i
].name
);
7118 /* Make sure INPUT_FILE_NUMBER points to first available open
7120 input_file_number
= n_infiles
;
7121 if (lang_specific_pre_link ())
7125 /* Determine if there are any linker input files. */
7126 num_linker_inputs
= 0;
7127 for (i
= 0; (int) i
< n_infiles
; i
++)
7128 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
7129 num_linker_inputs
++;
7131 /* Run ld to link all the compiler output files. */
7133 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
7135 int tmp
= execution_count
;
7139 #if HAVE_LTO_PLUGIN > 0
7140 #if HAVE_LTO_PLUGIN == 2
7141 const char *fno_use_linker_plugin
= "fno-use-linker-plugin";
7143 const char *fuse_linker_plugin
= "fuse-linker-plugin";
7147 /* We'll use ld if we can't find collect2. */
7148 if (! strcmp (linker_name_spec
, "collect2"))
7150 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
7152 linker_name_spec
= "ld";
7155 #if HAVE_LTO_PLUGIN > 0
7156 #if HAVE_LTO_PLUGIN == 2
7157 if (!switch_matches (fno_use_linker_plugin
,
7158 fno_use_linker_plugin
7159 + strlen (fno_use_linker_plugin
), 0))
7161 if (switch_matches (fuse_linker_plugin
,
7163 + strlen (fuse_linker_plugin
), 0))
7166 char *temp_spec
= find_a_file (&exec_prefixes
,
7167 LTOPLUGINSONAME
, R_OK
,
7170 fatal_error ("-fuse-linker-plugin, but %s not found",
7172 linker_plugin_file_spec
= convert_white_space (temp_spec
);
7175 lto_gcc_spec
= argv
[0];
7178 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
7180 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
7181 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
7183 if (print_subprocess_help
== 1)
7185 printf (_("\nLinker options\n==============\n\n"));
7186 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
7187 " to the linker.\n\n"));
7190 value
= do_spec (link_command_spec
);
7193 linker_was_run
= (tmp
!= execution_count
);
7196 /* If options said don't run linker,
7197 complain about input files to be given to the linker. */
7199 if (! linker_was_run
&& !seen_error ())
7200 for (i
= 0; (int) i
< n_infiles
; i
++)
7201 if (explicit_link_files
[i
]
7202 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
7203 warning (0, "%s: linker input file unused because linking not done",
7206 /* Delete some or all of the temporary files we made. */
7209 delete_failure_queue ();
7210 delete_temp_files ();
7212 if (print_help_list
)
7214 printf (("\nFor bug reporting instructions, please see:\n"));
7215 printf ("%s\n", bug_report_url
);
7219 return (signal_count
!= 0 ? 2
7220 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
7224 /* Find the proper compilation spec for the file name NAME,
7225 whose length is LENGTH. LANGUAGE is the specified language,
7226 or 0 if this file is to be passed to the linker. */
7228 static struct compiler
*
7229 lookup_compiler (const char *name
, size_t length
, const char *language
)
7231 struct compiler
*cp
;
7233 /* If this was specified by the user to be a linker input, indicate that. */
7234 if (language
!= 0 && language
[0] == '*')
7237 /* Otherwise, look for the language, if one is spec'd. */
7240 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7241 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
7244 error ("language %s not recognized", language
);
7248 /* Look for a suffix. */
7249 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7251 if (/* The suffix `-' matches only the file name `-'. */
7252 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7253 || (strlen (cp
->suffix
) < length
7254 /* See if the suffix matches the end of NAME. */
7255 && !strcmp (cp
->suffix
,
7256 name
+ length
- strlen (cp
->suffix
))
7261 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
7262 /* Look again, but case-insensitively this time. */
7264 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7266 if (/* The suffix `-' matches only the file name `-'. */
7267 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7268 || (strlen (cp
->suffix
) < length
7269 /* See if the suffix matches the end of NAME. */
7270 && ((!strcmp (cp
->suffix
,
7271 name
+ length
- strlen (cp
->suffix
))
7272 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
7273 && !strcasecmp (cp
->suffix
,
7274 name
+ length
- strlen (cp
->suffix
)))
7280 if (cp
>= compilers
)
7282 if (cp
->spec
[0] != '@')
7283 /* A non-alias entry: return it. */
7286 /* An alias entry maps a suffix to a language.
7287 Search for the language; pass 0 for NAME and LENGTH
7288 to avoid infinite recursion if language not found. */
7289 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
7295 save_string (const char *s
, int len
)
7297 char *result
= XNEWVEC (char, len
+ 1);
7299 memcpy (result
, s
, len
);
7305 pfatal_with_name (const char *name
)
7307 perror_with_name (name
);
7308 delete_temp_files ();
7313 perror_with_name (const char *name
)
7315 error ("%s: %m", name
);
7319 validate_switches_from_spec (const char *spec
, bool user
)
7321 const char *p
= spec
;
7324 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
7325 /* We have a switch spec. */
7326 p
= validate_switches (p
+ 1, user
);
7330 validate_all_switches (void)
7332 struct compiler
*comp
;
7333 struct spec_list
*spec
;
7335 for (comp
= compilers
; comp
->spec
; comp
++)
7336 validate_switches_from_spec (comp
->spec
, false);
7338 /* Look through the linked list of specs read from the specs file. */
7339 for (spec
= specs
; spec
; spec
= spec
->next
)
7340 validate_switches_from_spec (*spec
->ptr_spec
, spec
->user_p
);
7342 validate_switches_from_spec (link_command_spec
, false);
7345 /* Look at the switch-name that comes after START
7346 and mark as valid all supplied switches that match it. */
7349 validate_switches (const char *start
, bool user_spec
)
7351 const char *p
= start
;
7355 bool suffix
= false;
7356 bool starred
= false;
7358 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7367 if (*p
== '.' || *p
== ',')
7371 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7372 || *p
== ',' || *p
== '.' || *p
== '@')
7377 starred
= true, p
++;
7383 /* Mark all matching switches as valid. */
7384 for (i
= 0; i
< n_switches
; i
++)
7385 if (!strncmp (switches
[i
].part1
, atom
, len
)
7386 && (starred
|| switches
[i
].part1
[len
] == '\0')
7387 && (switches
[i
].known
|| user_spec
))
7388 switches
[i
].validated
= true;
7392 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
7395 if (*p
&& p
[-1] == ':')
7397 while (*p
&& *p
!= ';' && *p
!= '}')
7402 if (*p
== '{' || *p
== '<')
7403 p
= validate_switches (p
+1, user_spec
);
7404 else if (p
[0] == 'W' && p
[1] == '{')
7405 p
= validate_switches (p
+2, user_spec
);
7412 if (*p
&& p
[-1] == ';')
7426 static struct mdswitchstr
*mdswitches
;
7427 static int n_mdswitches
;
7429 /* Check whether a particular argument was used. The first time we
7430 canonicalize the switches to keep only the ones we care about. */
7433 used_arg (const char *p
, int len
)
7438 const char *replace
;
7443 static struct mswitchstr
*mswitches
;
7444 static int n_mswitches
;
7449 struct mswitchstr
*matches
;
7453 /* Break multilib_matches into the component strings of string
7454 and replacement string. */
7455 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7460 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
7462 q
= multilib_matches
;
7471 fatal_error ("multilib spec %qs is invalid",
7476 matches
[i
].len
= q
- matches
[i
].str
;
7478 matches
[i
].replace
= ++q
;
7479 while (*q
!= ';' && *q
!= '\0')
7482 goto invalid_matches
;
7485 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7491 /* Now build a list of the replacement string for switches that we care
7492 about. Make sure we allocate at least one entry. This prevents
7493 xmalloc from calling fatal, and prevents us from re-executing this
7496 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7497 for (i
= 0; i
< n_switches
; i
++)
7498 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
7500 int xlen
= strlen (switches
[i
].part1
);
7501 for (j
= 0; j
< cnt
; j
++)
7502 if (xlen
== matches
[j
].len
7503 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7505 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7506 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7507 mswitches
[n_mswitches
].replace
= (char *) 0;
7508 mswitches
[n_mswitches
].rep_len
= 0;
7514 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7515 on the command line nor any options mutually incompatible with
7517 for (i
= 0; i
< n_mdswitches
; i
++)
7521 for (q
= multilib_options
; *q
!= '\0'; q
++)
7527 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7528 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7530 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7537 if (*q
!= ' ' && *q
!= '\0')
7539 while (*r
!= ' ' && *r
!= '\0')
7542 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7545 if (used_arg (r
, q
- r
))
7550 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7551 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7552 mswitches
[n_mswitches
].replace
= (char *) 0;
7553 mswitches
[n_mswitches
].rep_len
= 0;
7566 for (i
= 0; i
< n_mswitches
; i
++)
7567 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7574 default_arg (const char *p
, int len
)
7578 for (i
= 0; i
< n_mdswitches
; i
++)
7579 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7585 /* Work out the subdirectory to use based on the options. The format of
7586 multilib_select is a list of elements. Each element is a subdirectory
7587 name followed by a list of options followed by a semicolon. The format
7588 of multilib_exclusions is the same, but without the preceding
7589 directory. First gcc will check the exclusions, if none of the options
7590 beginning with an exclamation point are present, and all of the other
7591 options are present, then we will ignore this completely. Passing
7592 that, gcc will consider each multilib_select in turn using the same
7593 rules for matching the options. If a match is found, that subdirectory
7595 A subdirectory name is optionally followed by a colon and the corresponding
7599 set_multilib_dir (void)
7602 unsigned int this_path_len
;
7603 const char *this_path
, *this_arg
;
7604 const char *start
, *end
;
7606 int ok
, ndfltok
, first
;
7609 start
= multilib_defaults
;
7610 while (*start
== ' ' || *start
== '\t')
7612 while (*start
!= '\0')
7615 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7617 while (*start
== ' ' || *start
== '\t')
7625 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
7626 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7628 while (*start
== ' ' || *start
== '\t')
7634 for (end
= start
+ 1;
7635 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7638 obstack_grow (&multilib_obstack
, start
, end
- start
);
7639 obstack_1grow (&multilib_obstack
, 0);
7640 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
7641 mdswitches
[i
++].len
= end
- start
;
7648 p
= multilib_exclusions
;
7651 /* Ignore newlines. */
7658 /* Check the arguments. */
7665 fatal_error ("multilib exclusions %qs is invalid",
7666 multilib_exclusions
);
7676 while (*p
!= ' ' && *p
!= ';')
7679 goto invalid_exclusions
;
7683 if (*this_arg
!= '!')
7691 ok
= used_arg (this_arg
, p
- this_arg
);
7706 p
= multilib_select
;
7708 /* Append multilib reuse rules if any. With those rules, we can reuse
7709 one multilib for certain different options sets. */
7710 if (strlen (multilib_reuse
) > 0)
7711 p
= concat (p
, multilib_reuse
, NULL
);
7715 /* Ignore newlines. */
7722 /* Get the initial path. */
7729 fatal_error ("multilib select %qs %qs is invalid",
7730 multilib_select
, multilib_reuse
);
7734 this_path_len
= p
- this_path
;
7736 /* Check the arguments. */
7743 goto invalid_select
;
7752 while (*p
!= ' ' && *p
!= ';')
7755 goto invalid_select
;
7759 if (*this_arg
!= '!')
7767 /* If this is a default argument, we can just ignore it.
7768 This is true even if this_arg begins with '!'. Beginning
7769 with '!' does not mean that this argument is necessarily
7770 inappropriate for this library: it merely means that
7771 there is a more specific library which uses this
7772 argument. If this argument is a default, we need not
7773 consider that more specific library. */
7774 ok
= used_arg (this_arg
, p
- this_arg
);
7781 if (default_arg (this_arg
, p
- this_arg
))
7790 if (this_path_len
!= 1
7791 || this_path
[0] != '.')
7793 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
7796 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7797 new_multilib_dir
[this_path_len
] = '\0';
7798 q
= strchr (new_multilib_dir
, ':');
7801 multilib_dir
= new_multilib_dir
;
7808 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7810 while (q
< end
&& *q
!= ':')
7814 const char *q2
= q
+ 1, *ml_end
= end
;
7815 char *new_multilib_os_dir
;
7817 while (q2
< end
&& *q2
!= ':')
7821 new_multilib_os_dir
= XNEWVEC (char, ml_end
- q
);
7822 memcpy (new_multilib_os_dir
, q
+ 1, ml_end
- q
- 1);
7823 new_multilib_os_dir
[ml_end
- q
- 1] = '\0';
7824 multilib_os_dir
= *new_multilib_os_dir
? new_multilib_os_dir
: ".";
7826 if (q2
< end
&& *q2
== ':')
7828 char *new_multiarch_dir
= XNEWVEC (char, end
- q2
);
7829 memcpy (new_multiarch_dir
, q2
+ 1, end
- q2
- 1);
7830 new_multiarch_dir
[end
- q2
- 1] = '\0';
7831 multiarch_dir
= new_multiarch_dir
;
7840 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7841 && strcmp (multilib_os_dir
, ".") == 0)
7843 free (CONST_CAST (char *, multilib_os_dir
));
7844 multilib_os_dir
= NULL
;
7846 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7847 multilib_os_dir
= multilib_dir
;
7850 /* Print out the multiple library subdirectory selection
7851 information. This prints out a series of lines. Each line looks
7852 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7853 required. Only the desired options are printed out, the negative
7854 matches. The options are print without a leading dash. There are
7855 no spaces to make it easy to use the information in the shell.
7856 Each subdirectory is printed only once. This assumes the ordering
7857 generated by the genmultilib script. Also, we leave out ones that match
7861 print_multilib_info (void)
7863 const char *p
= multilib_select
;
7864 const char *last_path
= 0, *this_path
;
7866 unsigned int last_path_len
= 0;
7871 /* Ignore newlines. */
7878 /* Get the initial path. */
7885 fatal_error ("multilib select %qs is invalid", multilib_select
);
7891 /* When --disable-multilib was used but target defines
7892 MULTILIB_OSDIRNAMES, entries starting with .: (and not starting
7893 with .:: for multiarch configurations) are there just to find
7894 multilib_os_dir, so skip them from output. */
7895 if (this_path
[0] == '.' && this_path
[1] == ':' && this_path
[2] != ':')
7898 /* Check for matches with the multilib_exclusions. We don't bother
7899 with the '!' in either list. If any of the exclusion rules match
7900 all of its options with the select rule, we skip it. */
7902 const char *e
= multilib_exclusions
;
7903 const char *this_arg
;
7908 /* Ignore newlines. */
7915 /* Check the arguments. */
7924 fatal_error ("multilib exclusion %qs is invalid",
7925 multilib_exclusions
);
7936 while (*e
!= ' ' && *e
!= ';')
7939 goto invalid_exclusion
;
7947 int len
= e
- this_arg
;
7950 goto invalid_select
;
7954 while (*q
!= ' ' && *q
!= ';')
7957 goto invalid_select
;
7961 if (! strncmp (arg
, this_arg
,
7962 (len
< q
- arg
) ? q
- arg
: len
)
7963 || default_arg (this_arg
, e
- this_arg
))
7993 /* If this is a duplicate, skip it. */
7994 skip
= (last_path
!= 0
7995 && (unsigned int) (p
- this_path
) == last_path_len
7996 && ! filename_ncmp (last_path
, this_path
, last_path_len
));
7998 last_path
= this_path
;
7999 last_path_len
= p
- this_path
;
8002 /* If this directory requires any default arguments, we can skip
8003 it. We will already have printed a directory identical to
8004 this one which does not require that default argument. */
8015 goto invalid_select
;
8022 while (*q
!= ' ' && *q
!= ';')
8025 goto invalid_select
;
8030 && default_arg (arg
, q
- arg
))
8045 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
8056 goto invalid_select
;
8064 use_arg
= *p
!= '!';
8069 while (*p
!= ' ' && *p
!= ';')
8072 goto invalid_select
;
8084 /* If there are extra options, print them now. */
8085 if (multilib_extra
&& *multilib_extra
)
8087 int print_at
= TRUE
;
8090 for (q
= multilib_extra
; *q
!= '\0'; q
++)
8111 /* getenv built-in spec function.
8113 Returns the value of the environment variable given by its first
8114 argument, concatenated with the second argument. If the
8115 environment variable is not defined, a fatal error is issued. */
8118 getenv_spec_function (int argc
, const char **argv
)
8128 value
= getenv (argv
[0]);
8130 fatal_error ("environment variable %qs not defined", argv
[0]);
8132 /* We have to escape every character of the environment variable so
8133 they are not interpreted as active spec characters. A
8134 particularly painful case is when we are reading a variable
8135 holding a windows path complete with \ separators. */
8136 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
8137 result
= XNEWVAR (char, len
);
8138 for (ptr
= result
; *value
; ptr
+= 2)
8144 strcpy (ptr
, argv
[1]);
8149 /* if-exists built-in spec function.
8151 Checks to see if the file specified by the absolute pathname in
8152 ARGS exists. Returns that pathname if found.
8154 The usual use for this function is to check for a library file
8155 (whose name has been expanded with %s). */
8158 if_exists_spec_function (int argc
, const char **argv
)
8160 /* Must have only one argument. */
8161 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8167 /* if-exists-else built-in spec function.
8169 This is like if-exists, but takes an additional argument which
8170 is returned if the first argument does not exist. */
8173 if_exists_else_spec_function (int argc
, const char **argv
)
8175 /* Must have exactly two arguments. */
8179 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8185 /* sanitize built-in spec function.
8187 This returns non-NULL, if sanitizing address, thread or
8188 any of the undefined behavior sanitizers. */
8191 sanitize_spec_function (int argc
, const char **argv
)
8196 if (strcmp (argv
[0], "address") == 0)
8197 return (flag_sanitize
& SANITIZE_ADDRESS
) ? "" : NULL
;
8198 if (strcmp (argv
[0], "thread") == 0)
8199 return (flag_sanitize
& SANITIZE_THREAD
) ? "" : NULL
;
8200 if (strcmp (argv
[0], "undefined") == 0)
8201 return (flag_sanitize
& SANITIZE_UNDEFINED
) ? "" : NULL
;
8202 if (strcmp (argv
[0], "leak") == 0)
8203 return ((flag_sanitize
8204 & (SANITIZE_ADDRESS
| SANITIZE_LEAK
| SANITIZE_THREAD
))
8205 == SANITIZE_LEAK
) ? "" : NULL
;
8209 /* replace-outfile built-in spec function.
8211 This looks for the first argument in the outfiles array's name and
8212 replaces it with the second argument. */
8215 replace_outfile_spec_function (int argc
, const char **argv
)
8218 /* Must have exactly two arguments. */
8222 for (i
= 0; i
< n_infiles
; i
++)
8224 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
8225 outfiles
[i
] = xstrdup (argv
[1]);
8230 /* remove-outfile built-in spec function.
8232 * This looks for the first argument in the outfiles array's name and
8236 remove_outfile_spec_function (int argc
, const char **argv
)
8239 /* Must have exactly one argument. */
8243 for (i
= 0; i
< n_infiles
; i
++)
8245 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
8251 /* Given two version numbers, compares the two numbers.
8252 A version number must match the regular expression
8253 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
8256 compare_version_strings (const char *v1
, const char *v2
)
8261 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
8262 REG_EXTENDED
| REG_NOSUB
) != 0)
8264 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
8265 if (rresult
== REG_NOMATCH
)
8266 fatal_error ("invalid version number %qs", v1
);
8267 else if (rresult
!= 0)
8269 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
8270 if (rresult
== REG_NOMATCH
)
8271 fatal_error ("invalid version number %qs", v2
);
8272 else if (rresult
!= 0)
8275 return strverscmp (v1
, v2
);
8279 /* version_compare built-in spec function.
8281 This takes an argument of the following form:
8283 <comparison-op> <arg1> [<arg2>] <switch> <result>
8285 and produces "result" if the comparison evaluates to true,
8286 and nothing if it doesn't.
8288 The supported <comparison-op> values are:
8290 >= true if switch is a later (or same) version than arg1
8292 < true if switch is an earlier version than arg1
8294 >< true if switch is arg1 or later, and earlier than arg2
8295 <> true if switch is earlier than arg1 or is arg2 or later
8297 If the switch is not present, the condition is false unless
8298 the first character of the <comparison-op> is '!'.
8301 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
8302 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
8305 version_compare_spec_function (int argc
, const char **argv
)
8309 const char *switch_value
= NULL
;
8314 fatal_error ("too few arguments to %%:version-compare");
8315 if (argv
[0][0] == '\0')
8317 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
8319 if (argc
!= nargs
+ 3)
8320 fatal_error ("too many arguments to %%:version-compare");
8322 switch_len
= strlen (argv
[nargs
+ 1]);
8323 for (i
= 0; i
< n_switches
; i
++)
8324 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
8325 && check_live_switch (i
, switch_len
))
8326 switch_value
= switches
[i
].part1
+ switch_len
;
8328 if (switch_value
== NULL
)
8332 comp1
= compare_version_strings (switch_value
, argv
[1]);
8334 comp2
= compare_version_strings (switch_value
, argv
[2]);
8336 comp2
= -1; /* This value unused. */
8339 switch (argv
[0][0] << 8 | argv
[0][1])
8341 case '>' << 8 | '=':
8342 result
= comp1
>= 0;
8344 case '!' << 8 | '<':
8345 result
= comp1
>= 0 || switch_value
== NULL
;
8350 case '!' << 8 | '>':
8351 result
= comp1
< 0 || switch_value
== NULL
;
8353 case '>' << 8 | '<':
8354 result
= comp1
>= 0 && comp2
< 0;
8356 case '<' << 8 | '>':
8357 result
= comp1
< 0 || comp2
>= 0;
8361 fatal_error ("unknown operator %qs in %%:version-compare", argv
[0]);
8366 return argv
[nargs
+ 2];
8369 /* %:include builtin spec function. This differs from %include in that it
8370 can be nested inside a spec, and thus be conditionalized. It takes
8371 one argument, the filename, and looks for it in the startfile path.
8372 The result is always NULL, i.e. an empty expansion. */
8375 include_spec_function (int argc
, const char **argv
)
8382 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
8383 read_specs (file
? file
: argv
[0], false, false);
8388 /* %:find-file spec function. This function replaces its argument by
8389 the file found through find_file, that is the -print-file-name gcc
8392 find_file_spec_function (int argc
, const char **argv
)
8399 file
= find_file (argv
[0]);
8404 /* %:find-plugindir spec function. This function replaces its argument
8405 by the -iplugindir=<dir> option. `dir' is found through find_file, that
8406 is the -print-file-name gcc program option. */
8408 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
8415 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
8420 /* %:print-asm-header spec function. Print a banner to say that the
8421 following output is from the assembler. */
8424 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
8425 const char **argv ATTRIBUTE_UNUSED
)
8427 printf (_("Assembler options\n=================\n\n"));
8428 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
8433 /* Get a random number for -frandom-seed */
8435 static unsigned HOST_WIDE_INT
8436 get_random_number (void)
8438 unsigned HOST_WIDE_INT ret
= 0;
8441 fd
= open ("/dev/urandom", O_RDONLY
);
8444 read (fd
, &ret
, sizeof (HOST_WIDE_INT
));
8450 /* Get some more or less random data. */
8451 #ifdef HAVE_GETTIMEOFDAY
8455 gettimeofday (&tv
, NULL
);
8456 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
8460 time_t now
= time (NULL
);
8462 if (now
!= (time_t)-1)
8463 ret
= (unsigned) now
;
8467 return ret
^ getpid ();
8470 /* %:compare-debug-dump-opt spec function. Save the last argument,
8471 expected to be the last -fdump-final-insns option, or generate a
8475 compare_debug_dump_opt_spec_function (int arg
,
8476 const char **argv ATTRIBUTE_UNUSED
)
8481 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
8484 fatal_error ("too many arguments to %%:compare-debug-dump-opt");
8486 do_spec_2 ("%{fdump-final-insns=*:%*}");
8487 do_spec_1 (" ", 0, NULL
);
8489 if (argbuf
.length () > 0
8490 && strcmp (argv
[argbuf
.length () - 1], "."))
8495 name
= xstrdup (argv
[argbuf
.length () - 1]);
8500 const char *ext
= NULL
;
8502 if (argbuf
.length () > 0)
8504 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
8507 else if (!compare_debug
)
8510 do_spec_2 ("%g.gkd");
8512 do_spec_1 (" ", 0, NULL
);
8514 gcc_assert (argbuf
.length () > 0);
8516 name
= concat (argbuf
.last (), ext
, NULL
);
8518 ret
= concat ("-fdump-final-insns=", name
, NULL
);
8521 which
= compare_debug
< 0;
8522 debug_check_temp_file
[which
] = name
;
8526 unsigned HOST_WIDE_INT value
= get_random_number ();
8528 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
8534 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
8545 static const char *debug_auxbase_opt
;
8547 /* %:compare-debug-self-opt spec function. Expands to the options
8548 that are to be passed in the second compilation of
8552 compare_debug_self_opt_spec_function (int arg
,
8553 const char **argv ATTRIBUTE_UNUSED
)
8556 fatal_error ("too many arguments to %%:compare-debug-self-opt");
8558 if (compare_debug
>= 0)
8561 do_spec_2 ("%{c|S:%{o*:%*}}");
8562 do_spec_1 (" ", 0, NULL
);
8564 if (argbuf
.length () > 0)
8565 debug_auxbase_opt
= concat ("-auxbase-strip ",
8569 debug_auxbase_opt
= NULL
;
8572 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
8573 %<fdump-final-insns=* -w -S -o %j \
8574 %{!fcompare-debug-second:-fcompare-debug-second} \
8575 ", compare_debug_opt
, NULL
);
8578 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
8579 options that are to be passed in the second compilation of
8580 compare-debug. It expects, as an argument, the basename of the
8581 current input file name, with the .gk suffix appended to it. */
8584 compare_debug_auxbase_opt_spec_function (int arg
,
8591 fatal_error ("too few arguments to %%:compare-debug-auxbase-opt");
8594 fatal_error ("too many arguments to %%:compare-debug-auxbase-opt");
8596 if (compare_debug
>= 0)
8599 len
= strlen (argv
[0]);
8600 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
8601 fatal_error ("argument to %%:compare-debug-auxbase-opt "
8602 "does not end in .gk");
8604 if (debug_auxbase_opt
)
8605 return debug_auxbase_opt
;
8607 #define OPT "-auxbase "
8610 name
= (char*) xmalloc (sizeof (OPT
) + len
);
8611 memcpy (name
, OPT
, sizeof (OPT
) - 1);
8612 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
8613 name
[sizeof (OPT
) - 1 + len
] = '\0';
8620 /* %:pass-through-libs spec function. Finds all -l options and input
8621 file names in the lib spec passed to it, and makes a list of them
8622 prepended with the plugin option to cause them to be passed through
8623 to the final link after all the new object files have been added. */
8626 pass_through_libs_spec_func (int argc
, const char **argv
)
8628 char *prepended
= xstrdup (" ");
8630 /* Shlemiel the painter's algorithm. Innately horrible, but at least
8631 we know that there will never be more than a handful of strings to
8632 concat, and it's only once per run, so it's not worth optimising. */
8633 for (n
= 0; n
< argc
; n
++)
8635 char *old
= prepended
;
8636 /* Anything that isn't an option is a full path to an output
8637 file; pass it through if it ends in '.a'. Among options,
8639 if (argv
[n
][0] == '-' && argv
[n
][1] == 'l')
8641 const char *lopt
= argv
[n
] + 2;
8642 /* Handle both joined and non-joined -l options. If for any
8643 reason there's a trailing -l with no joined or following
8644 arg just discard it. */
8645 if (!*lopt
&& ++n
>= argc
)
8649 prepended
= concat (prepended
, "-plugin-opt=-pass-through=-l",
8652 else if (!strcmp (".a", argv
[n
] + strlen (argv
[n
]) - 2))
8654 prepended
= concat (prepended
, "-plugin-opt=-pass-through=",
8655 argv
[n
], " ", NULL
);
8657 if (prepended
!= old
)
8663 /* %:replace-extension spec function. Replaces the extension of the
8664 first argument with the second argument. */
8667 replace_extension_spec_func (int argc
, const char **argv
)
8675 fatal_error ("too few arguments to %%:replace-extension");
8677 name
= xstrdup (argv
[0]);
8679 for (i
= strlen (name
) - 1; i
>= 0; i
--)
8680 if (IS_DIR_SEPARATOR (name
[i
]))
8683 p
= strrchr (name
+ i
+ 1, '.');
8687 result
= concat (name
, argv
[1], NULL
);
8693 /* Insert backslash before spaces in ORIG (usually a file path), to
8694 avoid being broken by spec parser.
8696 This function is needed as do_spec_1 treats white space (' ' and '\t')
8697 as the end of an argument. But in case of -plugin /usr/gcc install/xxx.so,
8698 the file name should be treated as a single argument rather than being
8699 broken into multiple. Solution is to insert '\\' before the space in a
8702 This function converts and only converts all occurrence of ' '
8703 to '\\' + ' ' and '\t' to '\\' + '\t'. For example:
8707 "a\\ b" -> "a\\\\ b"
8709 orig: input null-terminating string that was allocated by xalloc. The
8710 memory it points to might be freed in this function. Behavior undefined
8711 if ORIG wasn't xalloced or was freed already at entry.
8713 Return: ORIG if no conversion needed. Otherwise a newly allocated string
8714 that was converted from ORIG. */
8717 convert_white_space (char *orig
)
8719 int len
, number_of_space
= 0;
8721 for (len
= 0; orig
[len
]; len
++)
8722 if (orig
[len
] == ' ' || orig
[len
] == '\t') number_of_space
++;
8724 if (number_of_space
)
8726 char *new_spec
= (char *) xmalloc (len
+ number_of_space
+ 1);
8728 for (j
= 0, k
= 0; j
<= len
; j
++, k
++)
8730 if (orig
[j
] == ' ' || orig
[j
] == '\t')
8731 new_spec
[k
++] = '\\';
8732 new_spec
[k
] = orig
[j
];