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
;
160 static const char *spec_host_machine
= DEFAULT_REAL_TARGET_MACHINE
;
162 /* List of offload targets. */
164 static char *offload_targets
= NULL
;
166 /* Nonzero if cross-compiling.
167 When -b is used, the value comes from the `specs' file. */
169 #ifdef CROSS_DIRECTORY_STRUCTURE
170 static const char *cross_compile
= "1";
172 static const char *cross_compile
= "0";
175 /* Greatest exit code of sub-processes that has been encountered up to
177 static int greatest_status
= 1;
179 /* This is the obstack which we use to allocate many strings. */
181 static struct obstack obstack
;
183 /* This is the obstack to build an environment variable to pass to
184 collect2 that describes all of the relevant switches of what to
185 pass the compiler in building the list of pointers to constructors
188 static struct obstack collect_obstack
;
190 /* Forward declaration for prototypes. */
194 static void init_spec (void);
195 static void store_arg (const char *, int, int);
196 static void insert_wrapper (const char *);
197 static char *load_specs (const char *);
198 static void read_specs (const char *, bool, bool);
199 static void set_spec (const char *, const char *, bool);
200 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
201 static char *build_search_list (const struct path_prefix
*, const char *,
203 static void xputenv (const char *);
204 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
206 static int access_check (const char *, int);
207 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
208 static void add_prefix (struct path_prefix
*, const char *, const char *,
210 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
211 const char *, int, int, int);
212 static char *skip_whitespace (char *);
213 static void delete_if_ordinary (const char *);
214 static void delete_temp_files (void);
215 static void delete_failure_queue (void);
216 static void clear_failure_queue (void);
217 static int check_live_switch (int, int);
218 static const char *handle_braces (const char *);
219 static inline bool input_suffix_matches (const char *, const char *);
220 static inline bool switch_matches (const char *, const char *, int);
221 static inline void mark_matching_switches (const char *, const char *, int);
222 static inline void process_marked_switches (void);
223 static const char *process_brace_body (const char *, const char *, const char *, int, int);
224 static const struct spec_function
*lookup_spec_function (const char *);
225 static const char *eval_spec_function (const char *, const char *);
226 static const char *handle_spec_function (const char *, bool *);
227 static char *save_string (const char *, int);
228 static void set_collect_gcc_options (void);
229 static int do_spec_1 (const char *, int, const char *);
230 static int do_spec_2 (const char *);
231 static void do_option_spec (const char *, const char *);
232 static void do_self_spec (const char *);
233 static const char *find_file (const char *);
234 static int is_directory (const char *, bool);
235 static const char *validate_switches (const char *, bool);
236 static void validate_all_switches (void);
237 static inline void validate_switches_from_spec (const char *, bool);
238 static void give_switch (int, int);
239 static int used_arg (const char *, int);
240 static int default_arg (const char *, int);
241 static void set_multilib_dir (void);
242 static void print_multilib_info (void);
243 static void perror_with_name (const char *);
244 static void display_help (void);
245 static void add_preprocessor_option (const char *, int);
246 static void add_assembler_option (const char *, int);
247 static void add_linker_option (const char *, int);
248 static void process_command (unsigned int, struct cl_decoded_option
*);
249 static int execute (void);
250 static void alloc_args (void);
251 static void clear_args (void);
252 static void fatal_signal (int);
253 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
254 static void init_gcc_specs (struct obstack
*, const char *, const char *,
257 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
258 static const char *convert_filename (const char *, int, int);
261 static void try_generate_repro (const char **argv
);
262 static const char *getenv_spec_function (int, const char **);
263 static const char *if_exists_spec_function (int, const char **);
264 static const char *if_exists_else_spec_function (int, const char **);
265 static const char *sanitize_spec_function (int, const char **);
266 static const char *replace_outfile_spec_function (int, const char **);
267 static const char *remove_outfile_spec_function (int, const char **);
268 static const char *version_compare_spec_function (int, const char **);
269 static const char *include_spec_function (int, const char **);
270 static const char *find_file_spec_function (int, const char **);
271 static const char *find_plugindir_spec_function (int, const char **);
272 static const char *print_asm_header_spec_function (int, const char **);
273 static const char *compare_debug_dump_opt_spec_function (int, const char **);
274 static const char *compare_debug_self_opt_spec_function (int, const char **);
275 static const char *compare_debug_auxbase_opt_spec_function (int, const char **);
276 static const char *pass_through_libs_spec_func (int, const char **);
277 static const char *replace_extension_spec_func (int, const char **);
278 static char *convert_white_space (char *);
280 /* The Specs Language
282 Specs are strings containing lines, each of which (if not blank)
283 is made up of a program name, and arguments separated by spaces.
284 The program name must be exact and start from root, since no path
285 is searched and it is unreliable to depend on the current working directory.
286 Redirection of input or output is not supported; the subprograms must
287 accept filenames saying what files to read and write.
289 In addition, the specs can contain %-sequences to substitute variable text
290 or for conditional text. Here is a table of all defined %-sequences.
291 Note that spaces are not generated automatically around the results of
292 expanding these sequences; therefore, you can concatenate them together
293 or with constant text in a single argument.
295 %% substitute one % into the program name or argument.
296 %i substitute the name of the input file being processed.
297 %b substitute the basename of the input file being processed.
298 This is the substring up to (and not including) the last period
299 and not including the directory unless -save-temps was specified
300 to put temporaries in a different location.
301 %B same as %b, but include the file suffix (text after the last period).
303 substitute a file name that has suffix SUFFIX and is chosen
304 once per compilation, and mark the argument a la %d. To reduce
305 exposure to denial-of-service attacks, the file name is now
306 chosen in a way that is hard to predict even when previously
307 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
308 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
309 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
310 had been pre-processed. Previously, %g was simply substituted
311 with a file name chosen once per compilation, without regard
312 to any appended suffix (which was therefore treated just like
313 ordinary text), making such attacks more likely to succeed.
315 like %g, but if -pipe is in effect, expands simply to "-".
317 like %g, but if -pipe is in effect, expands to nothing. (We have both
318 %| and %m to accommodate differences between system assemblers; see
319 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
321 like %g, but generates a new temporary file name even if %uSUFFIX
324 substitutes the last file name generated with %uSUFFIX, generating a
325 new one if there is no such last file name. In the absence of any
326 %uSUFFIX, this is just like %gSUFFIX, except they don't share
327 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
328 would involve the generation of two distinct file names, one
329 for each `%g.s' and another for each `%U.s'. Previously, %U was
330 simply substituted with a file name chosen for the previous %u,
331 without regard to any appended suffix.
333 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
334 writable, and if save-temps is off; otherwise, substitute the name
335 of a temporary file, just like %u. This temporary file is not
336 meant for communication between processes, but rather as a junk
339 substitutes .SUFFIX for the suffixes of a matched switch's args when
340 it is subsequently output with %*. SUFFIX is terminated by the next
342 %d marks the argument containing or following the %d as a
343 temporary file name, so that that file will be deleted if GCC exits
344 successfully. Unlike %g, this contributes no text to the argument.
345 %w marks the argument containing or following the %w as the
346 "output file" of this compilation. This puts the argument
347 into the sequence of arguments that %o will substitute later.
348 %V indicates that this compilation produces no "output file".
350 like %{...} but mark last argument supplied within
351 as a file to be deleted on failure.
352 %o substitutes the names of all the output files, with spaces
353 automatically placed around them. You should write spaces
354 around the %o as well or the results are undefined.
355 %o is for use in the specs for running the linker.
356 Input files whose names have no recognized suffix are not compiled
357 at all, but they are included among the output files, so they will
359 %O substitutes the suffix for object files. Note that this is
360 handled specially when it immediately follows %g, %u, or %U
361 (with or without a suffix argument) because of the need for
362 those to form complete file names. The handling is such that
363 %O is treated exactly as if it had already been substituted,
364 except that %g, %u, and %U do not currently support additional
365 SUFFIX characters following %O as they would following, for
367 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
368 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
369 and -B options) and -imultilib as necessary.
370 %s current argument is the name of a library or startup file of some sort.
371 Search for that file in a standard list of directories
372 and substitute the full name found.
373 %eSTR Print STR as an error message. STR is terminated by a newline.
374 Use this when inconsistent options are detected.
375 %nSTR Print STR as a notice. STR is terminated by a newline.
376 %x{OPTION} Accumulate an option for %X.
377 %X Output the accumulated linker options specified by compilations.
378 %Y Output the accumulated assembler options specified by compilations.
379 %Z Output the accumulated preprocessor options specified by compilations.
380 %a process ASM_SPEC as a spec.
381 This allows config.h to specify part of the spec for running as.
382 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
383 used here. This can be used to run a post-processor after the
384 assembler has done its job.
385 %D Dump out a -L option for each directory in startfile_prefixes.
386 If multilib_dir is set, extra entries are generated with it affixed.
387 %l process LINK_SPEC as a spec.
388 %L process LIB_SPEC as a spec.
389 %M Output multilib_os_dir.
390 %G process LIBGCC_SPEC as a spec.
391 %R Output the concatenation of target_system_root and
392 target_sysroot_suffix.
393 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
394 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
395 %C process CPP_SPEC as a spec.
396 %1 process CC1_SPEC as a spec.
397 %2 process CC1PLUS_SPEC as a spec.
398 %* substitute the variable part of a matched option. (See below.)
399 Note that each comma in the substituted string is replaced by
400 a single space. A space is appended after the last substition
401 unless there is more text in current sequence.
402 %<S remove all occurrences of -S from the command line.
403 Note - this command is position dependent. % commands in the
404 spec string before this one will see -S, % commands in the
405 spec string after this one will not.
406 %>S Similar to "%<S", but keep it in the GCC command line.
407 %<S* remove all occurrences of all switches beginning with -S from the
410 Call the named function FUNCTION, passing it ARGS. ARGS is
411 first processed as a nested spec string, then split into an
412 argument vector in the usual fashion. The function returns
413 a string which is processed as if it had appeared literally
414 as part of the current spec.
415 %{S} substitutes the -S switch, if that switch was given to GCC.
416 If that switch was not specified, this substitutes nothing.
417 Here S is a metasyntactic variable.
418 %{S*} substitutes all the switches specified to GCC whose names start
419 with -S. This is used for -o, -I, etc; switches that take
420 arguments. GCC considers `-o foo' as being one switch whose
421 name starts with `o'. %{o*} would substitute this text,
422 including the space; thus, two arguments would be generated.
423 %{S*&T*} likewise, but preserve order of S and T options (the order
424 of S and T in the spec is not significant). Can be any number
425 of ampersand-separated variables; for each the wild card is
426 optional. Useful for CPP as %{D*&U*&A*}.
428 %{S:X} substitutes X, if the -S switch was given to GCC.
429 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
430 %{S*:X} substitutes X if one or more switches whose names start
431 with -S was given to GCC. Normally X is substituted only
432 once, no matter how many such switches appeared. However,
433 if %* appears somewhere in X, then X will be substituted
434 once for each matching switch, with the %* replaced by the
435 part of that switch that matched the '*'. A space will be
436 appended after the last substition unless there is more
437 text in current sequence.
438 %{.S:X} substitutes X, if processing a file with suffix S.
439 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
440 %{,S:X} substitutes X, if processing a file which will use spec S.
441 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
443 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
444 combined with '!', '.', ',', and '*' as above binding stronger
446 If %* appears in X, all of the alternatives must be starred, and
447 only the first matching alternative is substituted.
448 %{%:function(args):X}
449 Call function named FUNCTION with args ARGS. If the function
450 returns non-NULL, then X is substituted, if it returns
451 NULL, it isn't substituted.
452 %{S:X; if S was given to GCC, substitutes X;
453 T:Y; else if T was given to GCC, substitutes Y;
454 :D} else substitutes D. There can be as many clauses as you need.
455 This may be combined with '.', '!', ',', '|', and '*' as above.
457 %(Spec) processes a specification defined in a specs file as *Spec:
459 The conditional text X in a %{S:X} or similar construct may contain
460 other nested % constructs or spaces, or even newlines. They are
461 processed as usual, as described above. Trailing white space in X is
462 ignored. White space may also appear anywhere on the left side of the
463 colon in these constructs, except between . or * and the corresponding
466 The -O, -f, -g, -m, and -W switches are handled specifically in these
467 constructs. If another value of -O or the negated form of a -f, -m, or
468 -W switch is found later in the command line, the earlier switch
469 value is ignored, except with {S*} where S is just one letter; this
470 passes all matching options.
472 The character | at the beginning of the predicate text is used to indicate
473 that a command should be piped to the following command, but only if -pipe
476 Note that it is built into GCC which switches take arguments and which
477 do not. You might think it would be useful to generalize this to
478 allow each compiler's spec to say which switches take arguments. But
479 this cannot be done in a consistent fashion. GCC cannot even decide
480 which input files have been specified without knowing which switches
481 take arguments, and it must know which input files to compile in order
482 to tell which compilers to run.
484 GCC also knows implicitly that arguments starting in `-l' are to be
485 treated as compiler output files, and passed to the linker in their
486 proper position among the other output files. */
488 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
490 /* config.h can define ASM_SPEC to provide extra args to the assembler
491 or extra switch-translations. */
496 /* config.h can define ASM_FINAL_SPEC to run a post processor after
497 the assembler has run. */
498 #ifndef ASM_FINAL_SPEC
499 #define ASM_FINAL_SPEC \
501 objcopy --extract-dwo \
502 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
503 %{c:%{o*:%:replace-extension(%{o*:%*} .dwo)}%{!o*:%b.dwo}}%{!c:%b.dwo} \n\
504 objcopy --strip-dwo \
505 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
509 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
510 or extra switch-translations. */
515 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
516 or extra switch-translations. */
521 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
522 or extra switch-translations. */
524 #define CC1PLUS_SPEC ""
527 /* config.h can define LINK_SPEC to provide extra args to the linker
528 or extra switch-translations. */
533 /* config.h can define LIB_SPEC to override the default libraries. */
535 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
538 /* When using -fsplit-stack we need to wrap pthread_create, in order
539 to initialize the stack guard. We always use wrapping, rather than
540 shared library ordering, and we keep the wrapper function in
541 libgcc. This is not yet a real spec, though it could become one;
542 it is currently just stuffed into LINK_SPEC. FIXME: This wrapping
543 only works with GNU ld and gold. */
544 #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
547 #define STATIC_LIBASAN_LIBS \
548 " %{static-libasan:%:include(libsanitizer.spec)%(link_libasan)}"
549 #ifdef LIBASAN_EARLY_SPEC
550 #define LIBASAN_SPEC STATIC_LIBASAN_LIBS
551 #elif defined(HAVE_LD_STATIC_DYNAMIC)
552 #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \
553 "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \
556 #define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS
560 #ifndef LIBASAN_EARLY_SPEC
561 #define LIBASAN_EARLY_SPEC ""
565 #define STATIC_LIBTSAN_LIBS \
566 " %{static-libtsan:%:include(libsanitizer.spec)%(link_libtsan)}"
567 #ifdef LIBTSAN_EARLY_SPEC
568 #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
569 #elif defined(HAVE_LD_STATIC_DYNAMIC)
570 #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \
571 "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
574 #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
578 #ifndef LIBTSAN_EARLY_SPEC
579 #define LIBTSAN_EARLY_SPEC ""
583 #define STATIC_LIBLSAN_LIBS \
584 " %{static-liblsan:%:include(libsanitizer.spec)%(link_liblsan)}"
585 #ifdef LIBLSAN_EARLY_SPEC
586 #define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS
587 #elif defined(HAVE_LD_STATIC_DYNAMIC)
588 #define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION \
589 "} -llsan %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
592 #define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS
596 #ifndef LIBLSAN_EARLY_SPEC
597 #define LIBLSAN_EARLY_SPEC ""
600 #ifndef LIBUBSAN_SPEC
601 #define STATIC_LIBUBSAN_LIBS \
602 " %{static-libubsan:%:include(libsanitizer.spec)%(link_libubsan)}"
603 #ifdef HAVE_LD_STATIC_DYNAMIC
604 #define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \
605 "} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
608 #define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS
612 /* Linker options for compressed debug sections. */
613 #if HAVE_LD_COMPRESS_DEBUG == 0
614 /* No linker support. */
615 #define LINK_COMPRESS_DEBUG_SPEC \
616 " %{gz*:%e-gz is not supported in this configuration} "
617 #elif HAVE_LD_COMPRESS_DEBUG == 1
618 /* GNU style on input, GNU ld options. Reject, not useful. */
619 #define LINK_COMPRESS_DEBUG_SPEC \
620 " %{gz*:%e-gz is not supported in this configuration} "
621 #elif HAVE_LD_COMPRESS_DEBUG == 2
622 /* GNU style, GNU gold options. */
623 #define LINK_COMPRESS_DEBUG_SPEC \
624 " %{gz|gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
625 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
626 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
627 #elif HAVE_LD_COMPRESS_DEBUG == 3
628 /* ELF gABI style. */
629 #define LINK_COMPRESS_DEBUG_SPEC \
630 " %{gz|gz=zlib:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
631 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
632 " %{gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
634 #error Unknown value for HAVE_LD_COMPRESS_DEBUG.
637 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
640 #if defined(REAL_LIBGCC_SPEC)
641 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
642 #elif defined(LINK_LIBGCC_SPECIAL_1)
643 /* Have gcc do the search for libgcc.a. */
644 #define LIBGCC_SPEC "libgcc.a%s"
646 #define LIBGCC_SPEC "-lgcc"
650 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
651 #ifndef STARTFILE_SPEC
652 #define STARTFILE_SPEC \
653 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
656 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
658 #define ENDFILE_SPEC ""
662 #define LINKER_NAME "collect2"
665 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
666 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
671 /* Assembler options for compressed debug sections. */
672 #if HAVE_LD_COMPRESS_DEBUG < 2
673 /* Reject if the linker cannot write compressed debug sections. */
674 #define ASM_COMPRESS_DEBUG_SPEC \
675 " %{gz*:%e-gz is not supported in this configuration} "
676 #else /* HAVE_LD_COMPRESS_DEBUG >= 2 */
677 #if HAVE_AS_COMPRESS_DEBUG == 0
678 /* No assembler support. Ignore silently. */
679 #define ASM_COMPRESS_DEBUG_SPEC \
681 #elif HAVE_AS_COMPRESS_DEBUG == 1
682 /* GNU style, GNU as options. */
683 #define ASM_COMPRESS_DEBUG_SPEC \
684 " %{gz|gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "}" \
685 " %{gz=none:" AS_NO_COMPRESS_DEBUG_OPTION "}" \
686 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
687 #elif HAVE_AS_COMPRESS_DEBUG == 2
688 /* ELF gABI style. */
689 #define ASM_COMPRESS_DEBUG_SPEC \
690 " %{gz|gz=zlib:" AS_COMPRESS_DEBUG_OPTION "=zlib}" \
691 " %{gz=none:" AS_COMPRESS_DEBUG_OPTION "=none}" \
692 " %{gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
694 #error Unknown value for HAVE_AS_COMPRESS_DEBUG.
696 #endif /* HAVE_LD_COMPRESS_DEBUG >= 2 */
698 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
700 #ifndef ASM_DEBUG_SPEC
701 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
702 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
703 # define ASM_DEBUG_SPEC \
704 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
705 ? "%{!g0:%{gdwarf*:--gdwarf2}%{!gdwarf*:%{g*:--gstabs}}}" ASM_MAP \
706 : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
708 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
709 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP
711 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
712 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP
716 #ifndef ASM_DEBUG_SPEC
717 # define ASM_DEBUG_SPEC ""
720 /* Here is the spec for running the linker, after compiling all files. */
722 /* This is overridable by the target in case they need to specify the
723 -lgcc and -lc order specially, yet not require them to override all
724 of LINK_COMMAND_SPEC. */
725 #ifndef LINK_GCC_C_SEQUENCE_SPEC
726 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
729 #ifndef LINK_SSP_SPEC
730 #ifdef TARGET_LIBC_PROVIDES_SSP
731 #define LINK_SSP_SPEC "%{fstack-protector:}"
733 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-strong|fstack-protector-all:-lssp_nonshared -lssp}"
737 #ifndef LINK_PIE_SPEC
739 #define LINK_PIE_SPEC "%{pie:-pie} "
741 #define LINK_PIE_SPEC "%{pie:} "
745 #ifndef LINK_BUILDID_SPEC
746 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
747 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
751 /* Conditional to test whether the LTO plugin is used or not.
752 FIXME: For slim LTO we will need to enable plugin unconditionally. This
753 still cause problems with PLUGIN_LD != LD and when plugin is built but
754 not useable. For GCC 4.6 we don't support slim LTO and thus we can enable
755 plugin only when LTO is enabled. We still honor explicit
756 -fuse-linker-plugin if the linker used understands -plugin. */
758 /* The linker has some plugin support. */
759 #if HAVE_LTO_PLUGIN > 0
760 /* The linker used has full plugin support, use LTO plugin by default. */
761 #if HAVE_LTO_PLUGIN == 2
762 #define PLUGIN_COND "!fno-use-linker-plugin:%{!fno-lto"
763 #define PLUGIN_COND_CLOSE "}"
765 /* The linker used has limited plugin support, use LTO plugin with explicit
766 -fuse-linker-plugin. */
767 #define PLUGIN_COND "fuse-linker-plugin"
768 #define PLUGIN_COND_CLOSE ""
770 #define LINK_PLUGIN_SPEC \
772 -plugin %(linker_plugin_file) \
773 -plugin-opt=%(lto_wrapper) \
774 -plugin-opt=-fresolution=%u.res \
775 %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \
778 /* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */
779 #define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\
780 %e-fuse-linker-plugin is not supported in this configuration}"
783 /* Linker command line options for -fsanitize= early on the command line. */
784 #ifndef SANITIZER_EARLY_SPEC
785 #define SANITIZER_EARLY_SPEC "\
786 %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_EARLY_SPEC "} \
787 %{%:sanitize(thread):" LIBTSAN_EARLY_SPEC "} \
788 %{%:sanitize(leak):" LIBLSAN_EARLY_SPEC "}}}"
791 /* Linker command line options for -fsanitize= late on the command line. */
792 #ifndef SANITIZER_SPEC
793 #define SANITIZER_SPEC "\
794 %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_SPEC "\
795 %{static:%ecannot specify -static with -fsanitize=address}}\
796 %{%:sanitize(thread):" LIBTSAN_SPEC "\
797 %{!pie:%{!shared:%e-fsanitize=thread linking must be done with -pie or -shared}}}\
798 %{%:sanitize(undefined):" LIBUBSAN_SPEC "}\
799 %{%:sanitize(leak):" LIBLSAN_SPEC "}}}"
802 /* This is the spec to use, once the code for creating the vtable
803 verification runtime library, libvtv.so, has been created. Currently
804 the vtable verification runtime functions are in libstdc++, so we use
805 the spec just below this one. */
806 #ifndef VTABLE_VERIFICATION_SPEC
807 #define VTABLE_VERIFICATION_SPEC "\
808 %{!nostdlib:%{fvtable-verify=std: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}\
809 %{fvtable-verify=preinit: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}}"
812 /* -u* was put back because both BSD and SysV seem to support it. */
813 /* %{static:} simply prevents an error message if the target machine
814 doesn't handle -static. */
815 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
816 scripts which exist in user specified directories, or in standard
818 /* We pass any -flto flags on to the linker, which is expected
819 to understand them. In practice, this means it had better be collect2. */
820 /* %{e*} includes -export-dynamic; see comment in common.opt. */
821 #ifndef LINK_COMMAND_SPEC
822 #define LINK_COMMAND_SPEC "\
823 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
826 "%{flto|flto=*:%<fcompare-debug*} \
827 %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \
828 "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
829 "%X %{o*} %{e*} %{N} %{n} %{r}\
830 %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}} " VTABLE_VERIFICATION_SPEC " \
831 %{static:} %{L*} %(mfwrap) %(link_libgcc) " SANITIZER_EARLY_SPEC " %o\
832 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}\
833 %{fcilkplus:%:include(libcilkrts.spec)%(link_cilkrts)}\
834 %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
835 %(mflib) " STACK_SPLIT_SPEC "\
836 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \
837 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
838 %{!nostdlib:%{!nostartfiles:%E}} %{T*} }}}}}}"
841 #ifndef LINK_LIBGCC_SPEC
842 /* Generate -L options for startfile prefix list. */
843 # define LINK_LIBGCC_SPEC "%D"
846 #ifndef STARTFILE_PREFIX_SPEC
847 # define STARTFILE_PREFIX_SPEC ""
851 # define SYSROOT_SPEC "--sysroot=%R"
854 #ifndef SYSROOT_SUFFIX_SPEC
855 # define SYSROOT_SUFFIX_SPEC ""
858 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
859 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
862 static const char *asm_debug
= ASM_DEBUG_SPEC
;
863 static const char *cpp_spec
= CPP_SPEC
;
864 static const char *cc1_spec
= CC1_SPEC
;
865 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
866 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
867 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
868 static const char *asm_spec
= ASM_SPEC
;
869 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
870 static const char *link_spec
= LINK_SPEC
;
871 static const char *lib_spec
= LIB_SPEC
;
872 static const char *link_gomp_spec
= "";
873 static const char *libgcc_spec
= LIBGCC_SPEC
;
874 static const char *endfile_spec
= ENDFILE_SPEC
;
875 static const char *startfile_spec
= STARTFILE_SPEC
;
876 static const char *linker_name_spec
= LINKER_NAME
;
877 static const char *linker_plugin_file_spec
= "";
878 static const char *lto_wrapper_spec
= "";
879 static const char *lto_gcc_spec
= "";
880 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
881 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
882 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
883 static const char *sysroot_spec
= SYSROOT_SPEC
;
884 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
885 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
886 static const char *self_spec
= "";
888 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
889 There should be no need to override these in target dependent files,
890 but we need to copy them to the specs file so that newer versions
891 of the GCC driver can correctly drive older tool chains with the
892 appropriate -B options. */
894 /* When cpplib handles traditional preprocessing, get rid of this, and
895 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
896 that we default the front end language better. */
897 static const char *trad_capable_cpp
=
898 "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}";
900 /* We don't wrap .d files in %W{} since a missing .d file, and
901 therefore no dependency entry, confuses make into thinking a .o
902 file that happens to exist is up-to-date. */
903 static const char *cpp_unique_options
=
904 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
905 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
906 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
907 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
908 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
909 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
910 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
911 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
914 /* This contains cpp options which are common with cc1_options and are passed
915 only when preprocessing only to avoid duplication. We pass the cc1 spec
916 options to the preprocessor so that it the cc1 spec may manipulate
917 options used to set target flags. Those special target flags settings may
918 in turn cause preprocessor symbols to be defined specially. */
919 static const char *cpp_options
=
920 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
921 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
922 %{undef} %{save-temps*:-fpch-preprocess}";
924 /* This contains cpp options which are not passed when the preprocessor
925 output will be used by another program. */
926 static const char *cpp_debug_options
= "%{d*}";
928 /* NB: This is shared amongst all front-ends, except for Ada. */
929 static const char *cc1_options
=
930 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
931 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
932 %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\
933 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
934 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
935 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
936 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
937 %{Qn:-fno-ident} %{Qy:} %{-help:--help}\
938 %{-target-help:--target-help}\
939 %{-version:--version}\
940 %{-help=*:--help=%*}\
941 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
942 %{fsyntax-only:-o %j} %{-param*}\
943 %{coverage:-fprofile-arcs -ftest-coverage}";
945 static const char *asm_options
=
946 "%{-target-help:%:print-asm-header()} "
948 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
949 to the assembler equivalents. */
950 "%{v} %{w:-W} %{I*} "
952 ASM_COMPRESS_DEBUG_SPEC
953 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
955 static const char *invoke_as
=
956 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
958 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
959 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
963 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
964 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
968 /* Some compilers have limits on line lengths, and the multilib_select
969 and/or multilib_matches strings can be very long, so we build them at
971 static struct obstack multilib_obstack
;
972 static const char *multilib_select
;
973 static const char *multilib_matches
;
974 static const char *multilib_defaults
;
975 static const char *multilib_exclusions
;
976 static const char *multilib_reuse
;
978 /* Check whether a particular argument is a default argument. */
980 #ifndef MULTILIB_DEFAULTS
981 #define MULTILIB_DEFAULTS { "" }
984 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
986 #ifndef DRIVER_SELF_SPECS
987 #define DRIVER_SELF_SPECS ""
990 /* Linking to libgomp implies pthreads. This is particularly important
991 for targets that use different start files and suchlike. */
992 #ifndef GOMP_SELF_SPECS
993 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
996 /* Likewise for -fgnu-tm. */
997 #ifndef GTM_SELF_SPECS
998 #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}"
1001 /* Likewise for -fcilkplus. */
1002 #ifndef CILK_SELF_SPECS
1003 #define CILK_SELF_SPECS "%{fcilkplus: -pthread}"
1006 static const char *const driver_self_specs
[] = {
1007 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
1008 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
, GTM_SELF_SPECS
,
1012 #ifndef OPTION_DEFAULT_SPECS
1013 #define OPTION_DEFAULT_SPECS { "", "" }
1022 static const struct default_spec
1023 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
1027 struct user_specs
*next
;
1028 const char *filename
;
1031 static struct user_specs
*user_specs_head
, *user_specs_tail
;
1034 /* Record the mapping from file suffixes for compilation specs. */
1038 const char *suffix
; /* Use this compiler for input files
1039 whose names end in this suffix. */
1041 const char *spec
; /* To use this compiler, run this spec. */
1043 const char *cpp_spec
; /* If non-NULL, substitute this spec
1044 for `%C', rather than the usual
1046 const int combinable
; /* If nonzero, compiler can deal with
1047 multiple source files at once (IMA). */
1048 const int needs_preprocessing
; /* If nonzero, source files need to
1049 be run through a preprocessor. */
1052 /* Pointer to a vector of `struct compiler' that gives the spec for
1053 compiling a file, based on its suffix.
1054 A file that does not end in any of these suffixes will be passed
1055 unchanged to the loader and nothing else will be done to it.
1057 An entry containing two 0s is used to terminate the vector.
1059 If multiple entries match a file, the last matching one is used. */
1061 static struct compiler
*compilers
;
1063 /* Number of entries in `compilers', not counting the null terminator. */
1065 static int n_compilers
;
1067 /* The default list of file name suffixes and their compilation specs. */
1069 static const struct compiler default_compilers
[] =
1071 /* Add lists of suffixes of known languages here. If those languages
1072 were not present when we built the driver, we will hit these copies
1073 and be given a more meaningful error than "file not used since
1074 linking is not done". */
1075 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1076 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1077 {".mii", "#Objective-C++", 0, 0, 0},
1078 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1079 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1080 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1081 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1082 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1083 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1084 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1085 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1086 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1087 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1088 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1089 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1090 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1091 {".r", "#Ratfor", 0, 0, 0},
1092 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
1093 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
1094 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
1095 {".go", "#Go", 0, 1, 0},
1096 /* Next come the entries for C. */
1097 {".c", "@c", 0, 0, 1},
1099 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1100 external preprocessor if -save-temps is given. */
1101 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1104 %eGNU C no longer supports -traditional without -E}\
1105 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1106 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1107 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1109 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1110 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1111 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
1113 "%{!E:%e-E or -x required when input is from standard input}\
1114 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1115 {".h", "@c-header", 0, 0, 0},
1117 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1118 external preprocessor if -save-temps is given. */
1119 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1121 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1122 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1123 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1125 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
1126 %W{o*:--output-pch=%*}}%V}\
1127 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1128 cc1 %(cpp_unique_options) %(cc1_options)\
1129 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
1130 %W{o*:--output-pch=%*}}%V}}}}}}", 0, 0, 0},
1131 {".i", "@cpp-output", 0, 0, 0},
1133 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
1134 {".s", "@assembler", 0, 0, 0},
1136 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
1137 {".sx", "@assembler-with-cpp", 0, 0, 0},
1138 {".S", "@assembler-with-cpp", 0, 0, 0},
1139 {"@assembler-with-cpp",
1140 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1141 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1142 %{E|M|MM:%(cpp_debug_options)}\
1143 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1144 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1146 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1147 %{E|M|MM:%(cpp_debug_options)}\
1148 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1149 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1154 /* Mark end of table. */
1158 /* Number of elements in default_compilers, not counting the terminator. */
1160 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1162 typedef char *char_p
; /* For DEF_VEC_P. */
1164 /* A vector of options to give to the linker.
1165 These options are accumulated by %x,
1166 and substituted into the linker command with %X. */
1167 static vec
<char_p
> linker_options
;
1169 /* A vector of options to give to the assembler.
1170 These options are accumulated by -Wa,
1171 and substituted into the assembler command with %Y. */
1172 static vec
<char_p
> assembler_options
;
1174 /* A vector of options to give to the preprocessor.
1175 These options are accumulated by -Wp,
1176 and substituted into the preprocessor command with %Z. */
1177 static vec
<char_p
> preprocessor_options
;
1180 skip_whitespace (char *p
)
1184 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1185 be considered whitespace. */
1186 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1188 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1202 /* Structures to keep track of prefixes to try when looking for files. */
1206 const char *prefix
; /* String to prepend to the path. */
1207 struct prefix_list
*next
; /* Next in linked list. */
1208 int require_machine_suffix
; /* Don't use without machine_suffix. */
1209 /* 2 means try both machine_suffix and just_machine_suffix. */
1210 int priority
; /* Sort key - priority within list. */
1211 int os_multilib
; /* 1 if OS multilib scheme should be used,
1212 0 for GCC multilib scheme. */
1217 struct prefix_list
*plist
; /* List of prefixes to try */
1218 int max_len
; /* Max length of a prefix in PLIST */
1219 const char *name
; /* Name of this list (used in config stuff) */
1222 /* List of prefixes to try when looking for executables. */
1224 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1226 /* List of prefixes to try when looking for startup (crt0) files. */
1228 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1230 /* List of prefixes to try when looking for include files. */
1232 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1234 /* Suffix to attach to directories searched for commands.
1235 This looks like `MACHINE/VERSION/'. */
1237 static const char *machine_suffix
= 0;
1239 /* Suffix to attach to directories searched for commands.
1240 This is just `MACHINE/'. */
1242 static const char *just_machine_suffix
= 0;
1244 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1246 static const char *gcc_exec_prefix
;
1248 /* Adjusted value of standard_libexec_prefix. */
1250 static const char *gcc_libexec_prefix
;
1252 /* Default prefixes to attach to command names. */
1254 #ifndef STANDARD_STARTFILE_PREFIX_1
1255 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1257 #ifndef STANDARD_STARTFILE_PREFIX_2
1258 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1261 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1262 #undef MD_EXEC_PREFIX
1263 #undef MD_STARTFILE_PREFIX
1264 #undef MD_STARTFILE_PREFIX_1
1267 /* If no prefixes defined, use the null string, which will disable them. */
1268 #ifndef MD_EXEC_PREFIX
1269 #define MD_EXEC_PREFIX ""
1271 #ifndef MD_STARTFILE_PREFIX
1272 #define MD_STARTFILE_PREFIX ""
1274 #ifndef MD_STARTFILE_PREFIX_1
1275 #define MD_STARTFILE_PREFIX_1 ""
1278 /* These directories are locations set at configure-time based on the
1279 --prefix option provided to configure. Their initializers are
1280 defined in Makefile.in. These paths are not *directly* used when
1281 gcc_exec_prefix is set because, in that case, we know where the
1282 compiler has been installed, and use paths relative to that
1283 location instead. */
1284 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1285 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1286 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1287 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1289 /* For native compilers, these are well-known paths containing
1290 components that may be provided by the system. For cross
1291 compilers, these paths are not used. */
1292 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1293 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1294 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1295 static const char *const standard_startfile_prefix_1
1296 = STANDARD_STARTFILE_PREFIX_1
;
1297 static const char *const standard_startfile_prefix_2
1298 = STANDARD_STARTFILE_PREFIX_2
;
1300 /* A relative path to be used in finding the location of tools
1301 relative to the driver. */
1302 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1304 /* A prefix to be used when this is an accelerator compiler. */
1305 static const char *const accel_dir_suffix
= ACCEL_DIR_SUFFIX
;
1307 /* Subdirectory to use for locating libraries. Set by
1308 set_multilib_dir based on the compilation options. */
1310 static const char *multilib_dir
;
1312 /* Subdirectory to use for locating libraries in OS conventions. Set by
1313 set_multilib_dir based on the compilation options. */
1315 static const char *multilib_os_dir
;
1317 /* Subdirectory to use for locating libraries in multiarch conventions. Set by
1318 set_multilib_dir based on the compilation options. */
1320 static const char *multiarch_dir
;
1322 /* Structure to keep track of the specs that have been defined so far.
1323 These are accessed using %(specname) in a compiler or link
1328 /* The following 2 fields must be first */
1329 /* to allow EXTRA_SPECS to be initialized */
1330 const char *name
; /* name of the spec. */
1331 const char *ptr
; /* available ptr if no static pointer */
1333 /* The following fields are not initialized */
1334 /* by EXTRA_SPECS */
1335 const char **ptr_spec
; /* pointer to the spec itself. */
1336 struct spec_list
*next
; /* Next spec in linked list. */
1337 int name_len
; /* length of the name */
1338 bool user_p
; /* whether string come from file spec. */
1339 bool alloc_p
; /* whether string was allocated */
1342 #define INIT_STATIC_SPEC(NAME,PTR) \
1343 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, false, false }
1345 /* List of statically defined specs. */
1346 static struct spec_list static_specs
[] =
1348 INIT_STATIC_SPEC ("asm", &asm_spec
),
1349 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1350 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1351 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1352 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1353 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1354 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1355 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1356 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1357 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1358 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1359 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1360 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1361 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1362 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1363 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1364 INIT_STATIC_SPEC ("link", &link_spec
),
1365 INIT_STATIC_SPEC ("lib", &lib_spec
),
1366 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1367 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1368 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1369 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1370 INIT_STATIC_SPEC ("version", &compiler_version
),
1371 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1372 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1373 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1374 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1375 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1376 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1377 INIT_STATIC_SPEC ("multilib_reuse", &multilib_reuse
),
1378 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1379 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1380 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1381 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1382 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1383 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1384 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1385 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1386 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1387 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1388 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1389 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1390 INIT_STATIC_SPEC ("self_spec", &self_spec
),
1393 #ifdef EXTRA_SPECS /* additional specs needed */
1394 /* Structure to keep track of just the first two args of a spec_list.
1395 That is all that the EXTRA_SPECS macro gives us. */
1398 const char *const name
;
1399 const char *const ptr
;
1402 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1403 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1406 /* List of dynamically allocates specs that have been defined so far. */
1408 static struct spec_list
*specs
= (struct spec_list
*) 0;
1410 /* List of static spec functions. */
1412 static const struct spec_function static_spec_functions
[] =
1414 { "getenv", getenv_spec_function
},
1415 { "if-exists", if_exists_spec_function
},
1416 { "if-exists-else", if_exists_else_spec_function
},
1417 { "sanitize", sanitize_spec_function
},
1418 { "replace-outfile", replace_outfile_spec_function
},
1419 { "remove-outfile", remove_outfile_spec_function
},
1420 { "version-compare", version_compare_spec_function
},
1421 { "include", include_spec_function
},
1422 { "find-file", find_file_spec_function
},
1423 { "find-plugindir", find_plugindir_spec_function
},
1424 { "print-asm-header", print_asm_header_spec_function
},
1425 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1426 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1427 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1428 { "pass-through-libs", pass_through_libs_spec_func
},
1429 { "replace-extension", replace_extension_spec_func
},
1430 #ifdef EXTRA_SPEC_FUNCTIONS
1431 EXTRA_SPEC_FUNCTIONS
1436 static int processing_spec_function
;
1438 /* Add appropriate libgcc specs to OBSTACK, taking into account
1439 various permutations of -shared-libgcc, -shared, and such. */
1441 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1443 #ifndef USE_LD_AS_NEEDED
1444 #define USE_LD_AS_NEEDED 0
1448 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1449 const char *static_name
, const char *eh_name
)
1453 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1454 "%{!static:%{!static-libgcc:"
1455 #if USE_LD_AS_NEEDED
1456 "%{!shared-libgcc:",
1457 static_name
, " " LD_AS_NEEDED_OPTION
" ",
1458 shared_name
, " " LD_NO_AS_NEEDED_OPTION
1461 shared_name
, "%{!shared: ", static_name
, "}"
1465 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1466 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1470 "%{shared-libgcc:", shared_name
, "}"
1471 "%{!shared-libgcc:", static_name
, "}"
1474 "%{shared:", shared_name
, "}"
1479 obstack_grow (obstack
, buf
, strlen (buf
));
1482 #endif /* ENABLE_SHARED_LIBGCC */
1484 /* Initialize the specs lookup routines. */
1489 struct spec_list
*next
= (struct spec_list
*) 0;
1490 struct spec_list
*sl
= (struct spec_list
*) 0;
1494 return; /* Already initialized. */
1497 fnotice (stderr
, "Using built-in specs.\n");
1500 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1502 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1504 sl
= &extra_specs
[i
];
1505 sl
->name
= extra_specs_1
[i
].name
;
1506 sl
->ptr
= extra_specs_1
[i
].ptr
;
1508 sl
->name_len
= strlen (sl
->name
);
1509 sl
->ptr_spec
= &sl
->ptr
;
1514 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1516 sl
= &static_specs
[i
];
1521 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1522 /* ??? If neither -shared-libgcc nor --static-libgcc was
1523 seen, then we should be making an educated guess. Some proposed
1524 heuristics for ELF include:
1526 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1527 program will be doing dynamic loading, which will likely
1528 need the shared libgcc.
1530 (2) If "-ldl", then it's also a fair bet that we're doing
1533 (3) For each ET_DYN we're linking against (either through -lfoo
1534 or /some/path/foo.so), check to see whether it or one of
1535 its dependencies depends on a shared libgcc.
1539 If the runtime is fixed to look for program headers instead
1540 of calling __register_frame_info at all, for each object,
1541 use the shared libgcc if any EH symbol referenced.
1543 If crtstuff is fixed to not invoke __register_frame_info
1544 automatically, for each object, use the shared libgcc if
1545 any non-empty unwind section found.
1547 Doing any of this probably requires invoking an external program to
1548 do the actual object file scanning. */
1550 const char *p
= libgcc_spec
;
1553 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1554 when given the proper command line arguments. */
1557 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1559 init_gcc_specs (&obstack
,
1561 #ifdef USE_LIBUNWIND_EXCEPTIONS
1567 #ifdef USE_LIBUNWIND_EXCEPTIONS
1568 # ifdef HAVE_LD_STATIC_DYNAMIC
1569 " %{!static:" LD_STATIC_OPTION
"} -lunwind"
1570 " %{!static:" LD_DYNAMIC_OPTION
"}"
1580 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1582 /* Ug. We don't know shared library extensions. Hope that
1583 systems that use this form don't do shared libraries. */
1584 init_gcc_specs (&obstack
,
1588 #ifdef USE_LIBUNWIND_EXCEPTIONS
1597 obstack_1grow (&obstack
, *p
);
1598 in_sep
= (*p
== ' ');
1603 obstack_1grow (&obstack
, '\0');
1604 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1607 #ifdef USE_AS_TRADITIONAL_FORMAT
1608 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1610 static const char tf
[] = "--traditional-format ";
1611 obstack_grow (&obstack
, tf
, sizeof (tf
) - 1);
1612 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1613 asm_spec
= XOBFINISH (&obstack
, const char *);
1617 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \
1618 defined LINKER_HASH_STYLE
1619 # ifdef LINK_BUILDID_SPEC
1620 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1621 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof (LINK_BUILDID_SPEC
) - 1);
1623 # ifdef LINK_EH_SPEC
1624 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1625 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof (LINK_EH_SPEC
) - 1);
1627 # ifdef LINKER_HASH_STYLE
1628 /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had
1631 static const char hash_style
[] = "--hash-style=";
1632 obstack_grow (&obstack
, hash_style
, sizeof (hash_style
) - 1);
1633 obstack_grow (&obstack
, LINKER_HASH_STYLE
, sizeof (LINKER_HASH_STYLE
) - 1);
1634 obstack_1grow (&obstack
, ' ');
1637 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1638 link_spec
= XOBFINISH (&obstack
, const char *);
1644 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1645 removed; If the spec starts with a + then SPEC is added to the end of the
1649 set_spec (const char *name
, const char *spec
, bool user_p
)
1651 struct spec_list
*sl
;
1652 const char *old_spec
;
1653 int name_len
= strlen (name
);
1656 /* If this is the first call, initialize the statically allocated specs. */
1659 struct spec_list
*next
= (struct spec_list
*) 0;
1660 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1662 sl
= &static_specs
[i
];
1669 /* See if the spec already exists. */
1670 for (sl
= specs
; sl
; sl
= sl
->next
)
1671 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1676 /* Not found - make it. */
1677 sl
= XNEW (struct spec_list
);
1678 sl
->name
= xstrdup (name
);
1679 sl
->name_len
= name_len
;
1680 sl
->ptr_spec
= &sl
->ptr
;
1682 *(sl
->ptr_spec
) = "";
1687 old_spec
= *(sl
->ptr_spec
);
1688 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1689 ? concat (old_spec
, spec
+ 1, NULL
)
1694 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1697 /* Free the old spec. */
1698 if (old_spec
&& sl
->alloc_p
)
1699 free (CONST_CAST (char *, old_spec
));
1701 sl
->user_p
= user_p
;
1705 /* Accumulate a command (program name and args), and run it. */
1707 typedef const char *const_char_p
; /* For DEF_VEC_P. */
1709 /* Vector of pointers to arguments in the current line of specifications. */
1711 static vec
<const_char_p
> argbuf
;
1713 /* Were the options -c, -S or -E passed. */
1714 static int have_c
= 0;
1716 /* Was the option -o passed. */
1717 static int have_o
= 0;
1719 /* Pointer to output file name passed in with -o. */
1720 static const char *output_file
= 0;
1722 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1723 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1726 static struct temp_name
{
1727 const char *suffix
; /* suffix associated with the code. */
1728 int length
; /* strlen (suffix). */
1729 int unique
; /* Indicates whether %g or %u/%U was used. */
1730 const char *filename
; /* associated filename. */
1731 int filename_length
; /* strlen (filename). */
1732 struct temp_name
*next
;
1735 /* Number of commands executed so far. */
1737 static int execution_count
;
1739 /* Number of commands that exited with a signal. */
1741 static int signal_count
;
1743 /* Allocate the argument vector. */
1751 /* Clear out the vector of arguments (after a command is executed). */
1756 argbuf
.truncate (0);
1759 /* Add one argument to the vector at the end.
1760 This is done when a space is seen or at the end of the line.
1761 If DELETE_ALWAYS is nonzero, the arg is a filename
1762 and the file should be deleted eventually.
1763 If DELETE_FAILURE is nonzero, the arg is a filename
1764 and the file should be deleted if this compilation fails. */
1767 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1769 argbuf
.safe_push (arg
);
1771 if (delete_always
|| delete_failure
)
1774 /* If the temporary file we should delete is specified as
1775 part of a joined argument extract the filename. */
1777 && (p
= strrchr (arg
, '=')))
1779 record_temp_file (arg
, delete_always
, delete_failure
);
1783 /* Load specs from a file name named FILENAME, replacing occurrences of
1784 various different types of line-endings, \r\n, \n\r and just \r, with
1788 load_specs (const char *filename
)
1792 struct stat statbuf
;
1799 fnotice (stderr
, "Reading specs from %s\n", filename
);
1801 /* Open and stat the file. */
1802 desc
= open (filename
, O_RDONLY
, 0);
1804 pfatal_with_name (filename
);
1805 if (stat (filename
, &statbuf
) < 0)
1806 pfatal_with_name (filename
);
1808 /* Read contents of file into BUFFER. */
1809 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
1810 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1812 pfatal_with_name (filename
);
1813 buffer
[readlen
] = 0;
1816 specs
= XNEWVEC (char, readlen
+ 1);
1818 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1824 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1826 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1840 /* Read compilation specs from a file named FILENAME,
1841 replacing the default ones.
1843 A suffix which starts with `*' is a definition for
1844 one of the machine-specific sub-specs. The "suffix" should be
1845 *asm, *cc1, *cpp, *link, *startfile, etc.
1846 The corresponding spec is stored in asm_spec, etc.,
1847 rather than in the `compilers' vector.
1849 Anything invalid in the file is a fatal error. */
1852 read_specs (const char *filename
, bool main_p
, bool user_p
)
1857 buffer
= load_specs (filename
);
1859 /* Scan BUFFER for specs, putting them in the vector. */
1865 char *in
, *out
, *p1
, *p2
, *p3
;
1867 /* Advance P in BUFFER to the next nonblank nocomment line. */
1868 p
= skip_whitespace (p
);
1872 /* Is this a special command that starts with '%'? */
1873 /* Don't allow this for the main specs file, since it would
1874 encourage people to overwrite it. */
1875 if (*p
== '%' && !main_p
)
1878 while (*p
&& *p
!= '\n')
1884 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1885 && (p1
[sizeof "%include" - 1] == ' '
1886 || p1
[sizeof "%include" - 1] == '\t'))
1890 p1
+= sizeof ("%include");
1891 while (*p1
== ' ' || *p1
== '\t')
1894 if (*p1
++ != '<' || p
[-2] != '>')
1895 fatal_error ("specs %%include syntax malformed after "
1897 (long) (p1
- buffer
+ 1));
1900 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1901 read_specs (new_filename
? new_filename
: p1
, false, user_p
);
1904 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1905 && (p1
[sizeof "%include_noerr" - 1] == ' '
1906 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1910 p1
+= sizeof "%include_noerr";
1911 while (*p1
== ' ' || *p1
== '\t')
1914 if (*p1
++ != '<' || p
[-2] != '>')
1915 fatal_error ("specs %%include syntax malformed after "
1917 (long) (p1
- buffer
+ 1));
1920 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1922 read_specs (new_filename
, false, user_p
);
1923 else if (verbose_flag
)
1924 fnotice (stderr
, "could not find specs file %s\n", p1
);
1927 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1928 && (p1
[sizeof "%rename" - 1] == ' '
1929 || p1
[sizeof "%rename" - 1] == '\t'))
1932 struct spec_list
*sl
;
1933 struct spec_list
*newsl
;
1935 /* Get original name. */
1936 p1
+= sizeof "%rename";
1937 while (*p1
== ' ' || *p1
== '\t')
1940 if (! ISALPHA ((unsigned char) *p1
))
1941 fatal_error ("specs %%rename syntax malformed after "
1943 (long) (p1
- buffer
));
1946 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1949 if (*p2
!= ' ' && *p2
!= '\t')
1950 fatal_error ("specs %%rename syntax malformed after "
1952 (long) (p2
- buffer
));
1956 while (*p2
== ' ' || *p2
== '\t')
1959 if (! ISALPHA ((unsigned char) *p2
))
1960 fatal_error ("specs %%rename syntax malformed after "
1962 (long) (p2
- buffer
));
1964 /* Get new spec name. */
1966 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
1970 fatal_error ("specs %%rename syntax malformed after "
1972 (long) (p3
- buffer
));
1975 for (sl
= specs
; sl
; sl
= sl
->next
)
1976 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1980 fatal_error ("specs %s spec was not found to be renamed", p1
);
1982 if (strcmp (p1
, p2
) == 0)
1985 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
1986 if (strcmp (newsl
->name
, p2
) == 0)
1987 fatal_error ("%s: attempt to rename spec %qs to "
1988 "already defined spec %qs",
1993 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
1995 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
1999 set_spec (p2
, *(sl
->ptr_spec
), user_p
);
2001 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2003 *(sl
->ptr_spec
) = "";
2008 fatal_error ("specs unknown %% command after %ld characters",
2009 (long) (p1
- buffer
));
2012 /* Find the colon that should end the suffix. */
2014 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2017 /* The colon shouldn't be missing. */
2019 fatal_error ("specs file malformed after %ld characters",
2020 (long) (p1
- buffer
));
2022 /* Skip back over trailing whitespace. */
2024 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2027 /* Copy the suffix to a string. */
2028 suffix
= save_string (p
, p2
- p
);
2029 /* Find the next line. */
2030 p
= skip_whitespace (p1
+ 1);
2032 fatal_error ("specs file malformed after %ld characters",
2033 (long) (p
- buffer
));
2036 /* Find next blank line or end of string. */
2037 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2040 /* Specs end at the blank line and do not include the newline. */
2041 spec
= save_string (p
, p1
- p
);
2044 /* Delete backslash-newline sequences from the spec. */
2049 if (in
[0] == '\\' && in
[1] == '\n')
2051 else if (in
[0] == '#')
2052 while (*in
&& *in
!= '\n')
2060 if (suffix
[0] == '*')
2062 if (! strcmp (suffix
, "*link_command"))
2063 link_command_spec
= spec
;
2065 set_spec (suffix
+ 1, spec
, user_p
);
2069 /* Add this pair to the vector. */
2071 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2073 compilers
[n_compilers
].suffix
= suffix
;
2074 compilers
[n_compilers
].spec
= spec
;
2076 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2080 link_command_spec
= spec
;
2083 if (link_command_spec
== 0)
2084 fatal_error ("spec file has no spec for linking");
2087 /* Record the names of temporary files we tell compilers to write,
2088 and delete them at the end of the run. */
2090 /* This is the common prefix we use to make temp file names.
2091 It is chosen once for each run of this program.
2092 It is substituted into a spec by %g or %j.
2093 Thus, all temp file names contain this prefix.
2094 In practice, all temp file names start with this prefix.
2096 This prefix comes from the envvar TMPDIR if it is defined;
2097 otherwise, from the P_tmpdir macro if that is defined;
2098 otherwise, in /usr/tmp or /tmp;
2099 or finally the current directory if all else fails. */
2101 static const char *temp_filename
;
2103 /* Length of the prefix. */
2105 static int temp_filename_length
;
2107 /* Define the list of temporary files to delete. */
2112 struct temp_file
*next
;
2115 /* Queue of files to delete on success or failure of compilation. */
2116 static struct temp_file
*always_delete_queue
;
2117 /* Queue of files to delete on failure of compilation. */
2118 static struct temp_file
*failure_delete_queue
;
2120 /* Record FILENAME as a file to be deleted automatically.
2121 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2122 otherwise delete it in any case.
2123 FAIL_DELETE nonzero means delete it if a compilation step fails;
2124 otherwise delete it in any case. */
2127 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2129 char *const name
= xstrdup (filename
);
2133 struct temp_file
*temp
;
2134 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2135 if (! filename_cmp (name
, temp
->name
))
2138 temp
= XNEW (struct temp_file
);
2139 temp
->next
= always_delete_queue
;
2141 always_delete_queue
= temp
;
2148 struct temp_file
*temp
;
2149 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2150 if (! filename_cmp (name
, temp
->name
))
2156 temp
= XNEW (struct temp_file
);
2157 temp
->next
= failure_delete_queue
;
2159 failure_delete_queue
= temp
;
2165 /* Delete all the temporary files whose names we previously recorded. */
2167 #ifndef DELETE_IF_ORDINARY
2168 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2171 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2172 if (unlink (NAME) < 0) \
2174 perror_with_name (NAME); \
2179 delete_if_ordinary (const char *name
)
2185 printf ("Delete %s? (y or n) ", name
);
2189 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2192 if (i
== 'y' || i
== 'Y')
2194 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2198 delete_temp_files (void)
2200 struct temp_file
*temp
;
2202 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2203 delete_if_ordinary (temp
->name
);
2204 always_delete_queue
= 0;
2207 /* Delete all the files to be deleted on error. */
2210 delete_failure_queue (void)
2212 struct temp_file
*temp
;
2214 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2215 delete_if_ordinary (temp
->name
);
2219 clear_failure_queue (void)
2221 failure_delete_queue
= 0;
2224 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2226 If DO_MULTI is true iterate over the paths twice, first with multilib
2227 suffix then without, otherwise iterate over the paths once without
2228 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2229 to avoid visiting the same path twice, but we could do better. For
2230 instance, /usr/lib/../lib is considered different from /usr/lib.
2231 At least EXTRA_SPACE chars past the end of the path passed to
2232 CALLBACK are available for use by the callback.
2233 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2235 Returns the value returned by CALLBACK. */
2238 for_each_path (const struct path_prefix
*paths
,
2241 void *(*callback
) (char *, void *),
2242 void *callback_info
)
2244 struct prefix_list
*pl
;
2245 const char *multi_dir
= NULL
;
2246 const char *multi_os_dir
= NULL
;
2247 const char *multiarch_suffix
= NULL
;
2248 const char *multi_suffix
;
2249 const char *just_multi_suffix
;
2252 bool skip_multi_dir
= false;
2253 bool skip_multi_os_dir
= false;
2255 multi_suffix
= machine_suffix
;
2256 just_multi_suffix
= just_machine_suffix
;
2257 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2259 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2260 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2261 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2263 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2264 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2266 multiarch_suffix
= concat (multiarch_dir
, dir_separator_str
, NULL
);
2270 size_t multi_dir_len
= 0;
2271 size_t multi_os_dir_len
= 0;
2272 size_t multiarch_len
= 0;
2274 size_t just_suffix_len
;
2278 multi_dir_len
= strlen (multi_dir
);
2280 multi_os_dir_len
= strlen (multi_os_dir
);
2281 if (multiarch_suffix
)
2282 multiarch_len
= strlen (multiarch_suffix
);
2283 suffix_len
= strlen (multi_suffix
);
2284 just_suffix_len
= strlen (just_multi_suffix
);
2288 len
= paths
->max_len
+ extra_space
+ 1;
2289 len
+= MAX (MAX (suffix_len
, multi_os_dir_len
), multiarch_len
);
2290 path
= XNEWVEC (char, len
);
2293 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2295 len
= strlen (pl
->prefix
);
2296 memcpy (path
, pl
->prefix
, len
);
2298 /* Look first in MACHINE/VERSION subdirectory. */
2299 if (!skip_multi_dir
)
2301 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2302 ret
= callback (path
, callback_info
);
2307 /* Some paths are tried with just the machine (ie. target)
2308 subdir. This is used for finding as, ld, etc. */
2310 && pl
->require_machine_suffix
== 2)
2312 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2313 ret
= callback (path
, callback_info
);
2318 /* Now try the multiarch path. */
2320 && !pl
->require_machine_suffix
&& multiarch_dir
)
2322 memcpy (path
+ len
, multiarch_suffix
, multiarch_len
+ 1);
2323 ret
= callback (path
, callback_info
);
2328 /* Now try the base path. */
2329 if (!pl
->require_machine_suffix
2330 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2332 const char *this_multi
;
2333 size_t this_multi_len
;
2335 if (pl
->os_multilib
)
2337 this_multi
= multi_os_dir
;
2338 this_multi_len
= multi_os_dir_len
;
2342 this_multi
= multi_dir
;
2343 this_multi_len
= multi_dir_len
;
2347 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2351 ret
= callback (path
, callback_info
);
2359 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2362 /* Run through the paths again, this time without multilibs.
2363 Don't repeat any we have already seen. */
2366 free (CONST_CAST (char *, multi_dir
));
2368 free (CONST_CAST (char *, multi_suffix
));
2369 multi_suffix
= machine_suffix
;
2370 free (CONST_CAST (char *, just_multi_suffix
));
2371 just_multi_suffix
= just_machine_suffix
;
2374 skip_multi_dir
= true;
2377 free (CONST_CAST (char *, multi_os_dir
));
2378 multi_os_dir
= NULL
;
2381 skip_multi_os_dir
= true;
2386 free (CONST_CAST (char *, multi_dir
));
2387 free (CONST_CAST (char *, multi_suffix
));
2388 free (CONST_CAST (char *, just_multi_suffix
));
2391 free (CONST_CAST (char *, multi_os_dir
));
2397 /* Callback for build_search_list. Adds path to obstack being built. */
2399 struct add_to_obstack_info
{
2406 add_to_obstack (char *path
, void *data
)
2408 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2410 if (info
->check_dir
&& !is_directory (path
, false))
2413 if (!info
->first_time
)
2414 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2416 obstack_grow (info
->ob
, path
, strlen (path
));
2418 info
->first_time
= false;
2422 /* Add or change the value of an environment variable, outputting the
2423 change to standard error if in verbose mode. */
2425 xputenv (const char *string
)
2428 fnotice (stderr
, "%s\n", string
);
2429 putenv (CONST_CAST (char *, string
));
2432 /* Build a list of search directories from PATHS.
2433 PREFIX is a string to prepend to the list.
2434 If CHECK_DIR_P is true we ensure the directory exists.
2435 If DO_MULTI is true, multilib paths are output first, then
2437 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2438 It is also used by the --print-search-dirs flag. */
2441 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2442 bool check_dir
, bool do_multi
)
2444 struct add_to_obstack_info info
;
2446 info
.ob
= &collect_obstack
;
2447 info
.check_dir
= check_dir
;
2448 info
.first_time
= true;
2450 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2451 obstack_1grow (&collect_obstack
, '=');
2453 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2455 obstack_1grow (&collect_obstack
, '\0');
2456 return XOBFINISH (&collect_obstack
, char *);
2459 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2463 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2466 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2469 /* Check whether NAME can be accessed in MODE. This is like access,
2470 except that it never considers directories to be executable. */
2473 access_check (const char *name
, int mode
)
2479 if (stat (name
, &st
) < 0
2480 || S_ISDIR (st
.st_mode
))
2484 return access (name
, mode
);
2487 /* Callback for find_a_file. Appends the file name to the directory
2488 path. If the resulting file exists in the right mode, return the
2489 full pathname to the file. */
2491 struct file_at_path_info
{
2500 file_at_path (char *path
, void *data
)
2502 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2503 size_t len
= strlen (path
);
2505 memcpy (path
+ len
, info
->name
, info
->name_len
);
2506 len
+= info
->name_len
;
2508 /* Some systems have a suffix for executable files.
2509 So try appending that first. */
2510 if (info
->suffix_len
)
2512 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2513 if (access_check (path
, info
->mode
) == 0)
2518 if (access_check (path
, info
->mode
) == 0)
2524 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2525 access to check permissions. If DO_MULTI is true, search multilib
2526 paths then non-multilib paths, otherwise do not search multilib paths.
2527 Return 0 if not found, otherwise return its name, allocated with malloc. */
2530 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2533 struct file_at_path_info info
;
2535 #ifdef DEFAULT_ASSEMBLER
2536 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2537 return xstrdup (DEFAULT_ASSEMBLER
);
2540 #ifdef DEFAULT_LINKER
2541 if (! strcmp (name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2542 return xstrdup (DEFAULT_LINKER
);
2545 /* Determine the filename to execute (special case for absolute paths). */
2547 if (IS_ABSOLUTE_PATH (name
))
2549 if (access (name
, mode
) == 0)
2550 return xstrdup (name
);
2556 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2557 info
.name_len
= strlen (info
.name
);
2558 info
.suffix_len
= strlen (info
.suffix
);
2561 return (char*) for_each_path (pprefix
, do_multi
,
2562 info
.name_len
+ info
.suffix_len
,
2563 file_at_path
, &info
);
2566 /* Ranking of prefixes in the sort list. -B prefixes are put before
2569 enum path_prefix_priority
2571 PREFIX_PRIORITY_B_OPT
,
2572 PREFIX_PRIORITY_LAST
2575 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2576 order according to PRIORITY. Within each PRIORITY, new entries are
2579 If WARN is nonzero, we will warn if no file is found
2580 through this prefix. WARN should point to an int
2581 which will be set to 1 if this entry is used.
2583 COMPONENT is the value to be passed to update_path.
2585 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2586 the complete value of machine_suffix.
2587 2 means try both machine_suffix and just_machine_suffix. */
2590 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2591 const char *component
, /* enum prefix_priority */ int priority
,
2592 int require_machine_suffix
, int os_multilib
)
2594 struct prefix_list
*pl
, **prev
;
2597 for (prev
= &pprefix
->plist
;
2598 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2599 prev
= &(*prev
)->next
)
2602 /* Keep track of the longest prefix. */
2604 prefix
= update_path (prefix
, component
);
2605 len
= strlen (prefix
);
2606 if (len
> pprefix
->max_len
)
2607 pprefix
->max_len
= len
;
2609 pl
= XNEW (struct prefix_list
);
2610 pl
->prefix
= prefix
;
2611 pl
->require_machine_suffix
= require_machine_suffix
;
2612 pl
->priority
= priority
;
2613 pl
->os_multilib
= os_multilib
;
2615 /* Insert after PREV. */
2620 /* Same as add_prefix, but prepending target_system_root to prefix. */
2621 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2623 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2624 const char *component
,
2625 /* enum prefix_priority */ int priority
,
2626 int require_machine_suffix
, int os_multilib
)
2628 if (!IS_ABSOLUTE_PATH (prefix
))
2629 fatal_error ("system path %qs is not absolute", prefix
);
2631 if (target_system_root
)
2633 char *sysroot_no_trailing_dir_separator
= xstrdup (target_system_root
);
2634 size_t sysroot_len
= strlen (target_system_root
);
2637 && target_system_root
[sysroot_len
- 1] == DIR_SEPARATOR
)
2638 sysroot_no_trailing_dir_separator
[sysroot_len
- 1] = '\0';
2640 if (target_sysroot_suffix
)
2641 prefix
= concat (sysroot_no_trailing_dir_separator
,
2642 target_sysroot_suffix
, prefix
, NULL
);
2644 prefix
= concat (sysroot_no_trailing_dir_separator
, prefix
, NULL
);
2646 free (sysroot_no_trailing_dir_separator
);
2648 /* We have to override this because GCC's notion of sysroot
2649 moves along with GCC. */
2653 add_prefix (pprefix
, prefix
, component
, priority
,
2654 require_machine_suffix
, os_multilib
);
2657 /* Execute the command specified by the arguments on the current line of spec.
2658 When using pipes, this includes several piped-together commands
2659 with `|' between them.
2661 Return 0 if successful, -1 if failed. */
2667 int n_commands
; /* # of command. */
2669 struct pex_obj
*pex
;
2672 const char *prog
; /* program name. */
2673 const char **argv
; /* vector of args. */
2677 struct command
*commands
; /* each command buffer with above info. */
2679 gcc_assert (!processing_spec_function
);
2683 string
= find_a_file (&exec_prefixes
,
2684 argbuf
[0], X_OK
, false);
2687 insert_wrapper (wrapper_string
);
2690 /* Count # of piped commands. */
2691 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2692 if (strcmp (arg
, "|") == 0)
2695 /* Get storage for each command. */
2696 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2698 /* Split argbuf into its separate piped processes,
2699 and record info about each one.
2700 Also search for the programs that are to be run. */
2702 argbuf
.safe_push (0);
2704 commands
[0].prog
= argbuf
[0]; /* first command. */
2705 commands
[0].argv
= argbuf
.address ();
2707 if (!wrapper_string
)
2709 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2710 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2713 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2714 if (arg
&& strcmp (arg
, "|") == 0)
2715 { /* each command. */
2716 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2717 fatal_error ("-pipe not supported");
2719 argbuf
[i
] = 0; /* Termination of
2721 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2722 commands
[n_commands
].argv
2723 = &(argbuf
.address ())[i
+ 1];
2724 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2727 commands
[n_commands
].argv
[0] = string
;
2731 /* If -v, print what we are about to do, and maybe query. */
2735 /* For help listings, put a blank line between sub-processes. */
2736 if (print_help_list
)
2737 fputc ('\n', stderr
);
2739 /* Print each piped command as a separate line. */
2740 for (i
= 0; i
< n_commands
; i
++)
2742 const char *const *j
;
2744 if (verbose_only_flag
)
2746 for (j
= commands
[i
].argv
; *j
; j
++)
2749 for (p
= *j
; *p
; ++p
)
2750 if (!ISALNUM ((unsigned char) *p
)
2751 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
2755 fprintf (stderr
, " \"");
2756 for (p
= *j
; *p
; ++p
)
2758 if (*p
== '"' || *p
== '\\' || *p
== '$')
2759 fputc ('\\', stderr
);
2762 fputc ('"', stderr
);
2764 /* If it's empty, print "". */
2766 fprintf (stderr
, " \"\"");
2768 fprintf (stderr
, " %s", *j
);
2772 for (j
= commands
[i
].argv
; *j
; j
++)
2773 /* If it's empty, print "". */
2775 fprintf (stderr
, " \"\"");
2777 fprintf (stderr
, " %s", *j
);
2779 /* Print a pipe symbol after all but the last command. */
2780 if (i
+ 1 != n_commands
)
2781 fprintf (stderr
, " |");
2782 fprintf (stderr
, "\n");
2785 if (verbose_only_flag
!= 0)
2787 /* verbose_only_flag should act as if the spec was
2788 executed, so increment execution_count before
2789 returning. This prevents spurious warnings about
2790 unused linker input files, etc. */
2795 fnotice (stderr
, "\nGo ahead? (y or n) ");
2799 while (getchar () != '\n')
2802 if (i
!= 'y' && i
!= 'Y')
2807 #ifdef ENABLE_VALGRIND_CHECKING
2808 /* Run the each command through valgrind. To simplify prepending the
2809 path to valgrind and the option "-q" (for quiet operation unless
2810 something triggers), we allocate a separate argv array. */
2812 for (i
= 0; i
< n_commands
; i
++)
2818 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2821 argv
= XALLOCAVEC (const char *, argc
+ 3);
2823 argv
[0] = VALGRIND_PATH
;
2825 for (j
= 2; j
< argc
+ 2; j
++)
2826 argv
[j
] = commands
[i
].argv
[j
- 2];
2829 commands
[i
].argv
= argv
;
2830 commands
[i
].prog
= argv
[0];
2834 /* Run each piped subprocess. */
2836 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
2837 ? PEX_RECORD_TIMES
: 0),
2838 progname
, temp_filename
);
2840 fatal_error ("pex_init failed: %m");
2842 for (i
= 0; i
< n_commands
; i
++)
2846 const char *string
= commands
[i
].argv
[0];
2848 errmsg
= pex_run (pex
,
2849 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
2850 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
2851 string
, CONST_CAST (char **, commands
[i
].argv
),
2856 fatal_error (errmsg
);
2860 pfatal_with_name (errmsg
);
2864 if (i
&& string
!= commands
[i
].prog
)
2865 free (CONST_CAST (char *, string
));
2870 /* Wait for all the subprocesses to finish. */
2874 struct pex_time
*times
= NULL
;
2877 statuses
= (int *) alloca (n_commands
* sizeof (int));
2878 if (!pex_get_status (pex
, n_commands
, statuses
))
2879 fatal_error ("failed to get exit status: %m");
2881 if (report_times
|| report_times_to_file
)
2883 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
2884 if (!pex_get_times (pex
, n_commands
, times
))
2885 fatal_error ("failed to get process times: %m");
2890 for (i
= 0; i
< n_commands
; ++i
)
2892 int status
= statuses
[i
];
2894 if (WIFSIGNALED (status
))
2897 /* SIGPIPE is a special case. It happens in -pipe mode
2898 when the compiler dies before the preprocessor is done,
2899 or the assembler dies before the compiler is done.
2900 There's generally been an error already, and this is
2901 just fallout. So don't generate another error unless
2902 we would otherwise have succeeded. */
2903 if (WTERMSIG (status
) == SIGPIPE
2904 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2911 internal_error ("%s (program %s)",
2912 strsignal (WTERMSIG (status
)), commands
[i
].prog
);
2914 else if (WIFEXITED (status
)
2915 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2917 /* For ICEs in cc1, cc1obj, cc1plus see if it is
2918 reproducible or not. */
2921 && WEXITSTATUS (status
) == ICE_EXIT_CODE
2923 && (p
= strrchr (commands
[0].argv
[0], DIR_SEPARATOR
))
2924 && ! strncmp (p
+ 1, "cc1", 3))
2925 try_generate_repro (commands
[0].argv
);
2926 if (WEXITSTATUS (status
) > greatest_status
)
2927 greatest_status
= WEXITSTATUS (status
);
2931 if (report_times
|| report_times_to_file
)
2933 struct pex_time
*pt
= ×
[i
];
2936 ut
= ((double) pt
->user_seconds
2937 + (double) pt
->user_microseconds
/ 1.0e6
);
2938 st
= ((double) pt
->system_seconds
2939 + (double) pt
->system_microseconds
/ 1.0e6
);
2944 fnotice (stderr
, "# %s %.2f %.2f\n",
2945 commands
[i
].prog
, ut
, st
);
2947 if (report_times_to_file
)
2950 const char *const *j
;
2952 fprintf (report_times_to_file
, "%g %g", ut
, st
);
2954 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
2957 for (p
= *j
; *p
; ++p
)
2958 if (*p
== '"' || *p
== '\\' || *p
== '$'
2964 fprintf (report_times_to_file
, " \"");
2965 for (p
= *j
; *p
; ++p
)
2967 if (*p
== '"' || *p
== '\\' || *p
== '$')
2968 fputc ('\\', report_times_to_file
);
2969 fputc (*p
, report_times_to_file
);
2971 fputc ('"', report_times_to_file
);
2974 fprintf (report_times_to_file
, " %s", *j
);
2977 fputc ('\n', report_times_to_file
);
2983 if (commands
[0].argv
[0] != commands
[0].prog
)
2984 free (CONST_CAST (char *, commands
[0].argv
[0]));
2990 /* Find all the switches given to us
2991 and make a vector describing them.
2992 The elements of the vector are strings, one per switch given.
2993 If a switch uses following arguments, then the `part1' field
2994 is the switch itself and the `args' field
2995 is a null-terminated vector containing the following arguments.
2996 Bits in the `live_cond' field are:
2997 SWITCH_LIVE to indicate this switch is true in a conditional spec.
2998 SWITCH_FALSE to indicate this switch is overridden by a later switch.
2999 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3000 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored
3001 in all do_spec calls afterwards. Used for %<S from self specs.
3002 The `validated' field is nonzero if any spec has looked at this switch;
3003 if it remains zero at the end of the run, it must be meaningless. */
3005 #define SWITCH_LIVE (1 << 0)
3006 #define SWITCH_FALSE (1 << 1)
3007 #define SWITCH_IGNORE (1 << 2)
3008 #define SWITCH_IGNORE_PERMANENTLY (1 << 3)
3009 #define SWITCH_KEEP_FOR_GCC (1 << 4)
3015 unsigned int live_cond
;
3021 static struct switchstr
*switches
;
3023 static int n_switches
;
3025 static int n_switches_alloc
;
3027 /* Set to zero if -fcompare-debug is disabled, positive if it's
3028 enabled and we're running the first compilation, negative if it's
3029 enabled and we're running the second compilation. For most of the
3030 time, it's in the range -1..1, but it can be temporarily set to 2
3031 or 3 to indicate that the -fcompare-debug flags didn't come from
3032 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3033 variable, until a synthesized -fcompare-debug flag is added to the
3037 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3038 int compare_debug_second
;
3040 /* Set to the flags that should be passed to the second compilation in
3041 a -fcompare-debug compilation. */
3042 const char *compare_debug_opt
;
3044 static struct switchstr
*switches_debug_check
[2];
3046 static int n_switches_debug_check
[2];
3048 static int n_switches_alloc_debug_check
[2];
3050 static char *debug_check_temp_file
[2];
3052 /* Language is one of three things:
3054 1) The name of a real programming language.
3055 2) NULL, indicating that no one has figured out
3057 3) '*', indicating that the file should be passed
3062 const char *language
;
3063 struct compiler
*incompiler
;
3068 /* Also a vector of input files specified. */
3070 static struct infile
*infiles
;
3074 static int n_infiles_alloc
;
3076 /* True if multiple input files are being compiled to a single
3079 static bool combine_inputs
;
3081 /* This counts the number of libraries added by lang_specific_driver, so that
3082 we can tell if there were any user supplied any files or libraries. */
3084 static int added_libraries
;
3086 /* And a vector of corresponding output files is made up later. */
3088 const char **outfiles
;
3090 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3092 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3093 is true if we should look for an executable suffix. DO_OBJ
3094 is true if we should look for an object suffix. */
3097 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3098 int do_obj ATTRIBUTE_UNUSED
)
3100 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3108 len
= strlen (name
);
3110 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3111 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3112 if (do_obj
&& len
> 2
3113 && name
[len
- 2] == '.'
3114 && name
[len
- 1] == 'o')
3116 obstack_grow (&obstack
, name
, len
- 2);
3117 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3118 name
= XOBFINISH (&obstack
, const char *);
3122 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3123 /* If there is no filetype, make it the executable suffix (which includes
3124 the "."). But don't get confused if we have just "-o". */
3125 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3128 for (i
= len
- 1; i
>= 0; i
--)
3129 if (IS_DIR_SEPARATOR (name
[i
]))
3132 for (i
++; i
< len
; i
++)
3136 obstack_grow (&obstack
, name
, len
);
3137 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3138 strlen (TARGET_EXECUTABLE_SUFFIX
));
3139 name
= XOBFINISH (&obstack
, const char *);
3146 /* Display the command line switches accepted by gcc. */
3150 printf (_("Usage: %s [options] file...\n"), progname
);
3151 fputs (_("Options:\n"), stdout
);
3153 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3154 fputs (_(" --help Display this information\n"), stdout
);
3155 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3156 fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...]\n"), stdout
);
3157 fputs (_(" Display specific types of command line options\n"), stdout
);
3159 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3160 fputs (_(" --version Display compiler version information\n"), stdout
);
3161 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3162 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3163 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3164 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3165 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3166 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3167 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3169 -print-multiarch Display the target's normalized GNU triplet, used as\n\
3170 a component in the library path\n"), stdout
);
3171 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3173 -print-multi-lib Display the mapping between command line options and\n\
3174 multiple library search directories\n"), stdout
);
3175 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3176 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout
);
3177 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
3178 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3179 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3180 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3181 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3182 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3183 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3184 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3185 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout
);
3187 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3188 prefixes to other gcc components\n"), stdout
);
3189 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3190 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3191 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3192 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3194 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3195 and libraries\n"), stdout
);
3196 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3197 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3198 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3199 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3200 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3201 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3202 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3203 fputs (_(" -pie Create a position independent executable\n"), stdout
);
3204 fputs (_(" -shared Create a shared library\n"), stdout
);
3206 -x <language> Specify the language of the following input files\n\
3207 Permissible languages include: c c++ assembler none\n\
3208 'none' means revert to the default behavior of\n\
3209 guessing the language based on the file's extension\n\
3213 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3214 passed on to the various sub-processes invoked by %s. In order to pass\n\
3215 other options on to these processes the -W<letter> options must be used.\n\
3218 /* The rest of the options are displayed by invocations of the various
3223 add_preprocessor_option (const char *option
, int len
)
3225 preprocessor_options
.safe_push (save_string (option
, len
));
3229 add_assembler_option (const char *option
, int len
)
3231 assembler_options
.safe_push (save_string (option
, len
));
3235 add_linker_option (const char *option
, int len
)
3237 linker_options
.safe_push (save_string (option
, len
));
3240 /* Allocate space for an input file in infiles. */
3245 if (n_infiles_alloc
== 0)
3247 n_infiles_alloc
= 16;
3248 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3250 else if (n_infiles_alloc
== n_infiles
)
3252 n_infiles_alloc
*= 2;
3253 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3257 /* Store an input file with the given NAME and LANGUAGE in
3261 add_infile (const char *name
, const char *language
)
3264 infiles
[n_infiles
].name
= name
;
3265 infiles
[n_infiles
++].language
= language
;
3268 /* Allocate space for a switch in switches. */
3273 if (n_switches_alloc
== 0)
3275 n_switches_alloc
= 16;
3276 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3278 else if (n_switches_alloc
== n_switches
)
3280 n_switches_alloc
*= 2;
3281 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3285 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3286 as validated if VALIDATED and KNOWN if it is an internal switch. */
3289 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3290 bool validated
, bool known
)
3293 switches
[n_switches
].part1
= opt
+ 1;
3295 switches
[n_switches
].args
= 0;
3298 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3299 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3300 switches
[n_switches
].args
[n_args
] = NULL
;
3303 switches
[n_switches
].live_cond
= 0;
3304 switches
[n_switches
].validated
= validated
;
3305 switches
[n_switches
].known
= known
;
3306 switches
[n_switches
].ordering
= 0;
3310 /* Handle an option DECODED that is unknown to the option-processing
3314 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3316 const char *opt
= decoded
->arg
;
3317 if (opt
[1] == 'W' && opt
[2] == 'n' && opt
[3] == 'o' && opt
[4] == '-'
3318 && !(decoded
->errors
& CL_ERR_NEGATIVE
))
3320 /* Leave unknown -Wno-* options for the compiler proper, to be
3321 diagnosed only if there are warnings. */
3322 save_switch (decoded
->canonical_option
[0],
3323 decoded
->canonical_option_num_elements
- 1,
3324 &decoded
->canonical_option
[1], false, true);
3327 if (decoded
->opt_index
== OPT_SPECIAL_unknown
)
3329 /* Give it a chance to define it a a spec file. */
3330 save_switch (decoded
->canonical_option
[0],
3331 decoded
->canonical_option_num_elements
- 1,
3332 &decoded
->canonical_option
[1], false, false);
3339 /* Handle an option DECODED that is not marked as CL_DRIVER.
3340 LANG_MASK will always be CL_DRIVER. */
3343 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3344 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3346 /* At this point, non-driver options are accepted (and expected to
3347 be passed down by specs) unless marked to be rejected by the
3348 driver. Options to be rejected by the driver but accepted by the
3349 compilers proper are treated just like completely unknown
3351 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3353 if (option
->cl_reject_driver
)
3354 error ("unrecognized command line option %qs",
3355 decoded
->orig_option_with_args_text
);
3357 save_switch (decoded
->canonical_option
[0],
3358 decoded
->canonical_option_num_elements
- 1,
3359 &decoded
->canonical_option
[1], false, true);
3362 static const char *spec_lang
= 0;
3363 static int last_language_n_infiles
;
3365 /* Parse -foffload option argument. */
3368 handle_foffload_option (const char *arg
)
3370 const char *c
, *cur
, *n
, *next
, *end
;
3373 /* If option argument starts with '-' then no target is specified and we
3374 do not need to parse it. */
3378 end
= strchr (arg
, '=');
3380 end
= strchr (arg
, '\0');
3385 next
= strchr (cur
, ',');
3387 next
= strchr (cur
, '\0');
3388 next
= (next
> end
) ? end
: next
;
3390 target
= XNEWVEC (char, next
- cur
+ 1);
3391 strncpy (target
, cur
, next
- cur
);
3392 target
[next
- cur
] = '\0';
3394 /* If 'disable' is passed to the option, stop parsing the option and clean
3395 the list of offload targets. */
3396 if (strcmp (target
, "disable") == 0)
3398 free (offload_targets
);
3399 offload_targets
= xstrdup ("");
3403 /* Check that GCC is configured to support the offload target. */
3404 c
= OFFLOAD_TARGETS
;
3407 n
= strchr (c
, ',');
3409 n
= strchr (c
, '\0');
3411 if (strlen (target
) == (size_t) (n
- c
)
3412 && strncmp (target
, c
, n
- c
) == 0)
3415 c
= *n
? n
+ 1 : NULL
;
3419 fatal_error ("GCC is not configured to support %s as offload target",
3422 if (!offload_targets
)
3423 offload_targets
= xstrdup (target
);
3426 /* Check that the target hasn't already presented in the list. */
3427 c
= offload_targets
;
3430 n
= strchr (c
, ':');
3432 n
= strchr (c
, '\0');
3434 if (strlen (target
) == (size_t) (n
- c
)
3435 && strncmp (c
, target
, n
- c
) == 0)
3442 /* If duplicate is not found, append the target to the list. */
3446 = XRESIZEVEC (char, offload_targets
,
3447 strlen (offload_targets
) + strlen (target
) + 2);
3448 if (strlen (offload_targets
) != 0)
3449 strcat (offload_targets
, ":");
3450 strcat (offload_targets
, target
);
3455 XDELETEVEC (target
);
3459 /* Handle a driver option; arguments and return value as for
3463 driver_handle_option (struct gcc_options
*opts
,
3464 struct gcc_options
*opts_set
,
3465 const struct cl_decoded_option
*decoded
,
3466 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
3468 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
,
3469 diagnostic_context
*dc
)
3471 size_t opt_index
= decoded
->opt_index
;
3472 const char *arg
= decoded
->arg
;
3473 const char *compare_debug_replacement_opt
;
3474 int value
= decoded
->value
;
3475 bool validated
= false;
3476 bool do_save
= true;
3478 gcc_assert (opts
== &global_options
);
3479 gcc_assert (opts_set
== &global_options_set
);
3480 gcc_assert (kind
== DK_UNSPECIFIED
);
3481 gcc_assert (loc
== UNKNOWN_LOCATION
);
3482 gcc_assert (dc
== global_dc
);
3488 struct spec_list
*sl
;
3490 for (sl
= specs
; sl
; sl
= sl
->next
)
3491 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3492 if (link_command_spec
)
3493 printf ("*link_command:\n%s\n\n", link_command_spec
);
3497 case OPT_dumpversion
:
3498 printf ("%s\n", spec_version
);
3501 case OPT_dumpmachine
:
3502 printf ("%s\n", spec_machine
);
3508 /* CPP driver cannot obtain switch from cc1_options. */
3510 add_preprocessor_option ("--version", strlen ("--version"));
3511 add_assembler_option ("--version", strlen ("--version"));
3512 add_linker_option ("--version", strlen ("--version"));
3516 print_help_list
= 1;
3518 /* CPP driver cannot obtain switch from cc1_options. */
3520 add_preprocessor_option ("--help", 6);
3521 add_assembler_option ("--help", 6);
3522 add_linker_option ("--help", 6);
3526 print_subprocess_help
= 2;
3529 case OPT__target_help
:
3530 print_subprocess_help
= 1;
3532 /* CPP driver cannot obtain switch from cc1_options. */
3534 add_preprocessor_option ("--target-help", 13);
3535 add_assembler_option ("--target-help", 13);
3536 add_linker_option ("--target-help", 13);
3539 case OPT__no_sysroot_suffix
:
3540 case OPT_pass_exit_codes
:
3541 case OPT_print_search_dirs
:
3542 case OPT_print_file_name_
:
3543 case OPT_print_prog_name_
:
3544 case OPT_print_multi_lib
:
3545 case OPT_print_multi_directory
:
3546 case OPT_print_sysroot
:
3547 case OPT_print_multi_os_directory
:
3548 case OPT_print_multiarch
:
3549 case OPT_print_sysroot_headers_suffix
:
3552 /* These options set the variables specified in common.opt
3553 automatically, and do not need to be saved for spec
3558 case OPT_print_libgcc_file_name
:
3559 print_file_name
= "libgcc.a";
3563 case OPT_fuse_ld_bfd
:
3567 case OPT_fuse_ld_gold
:
3571 case OPT_fcompare_debug_second
:
3572 compare_debug_second
= 1;
3575 case OPT_fcompare_debug
:
3579 compare_debug_replacement_opt
= "-fcompare-debug=";
3581 goto compare_debug_with_arg
;
3584 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
3586 goto compare_debug_with_arg
;
3593 case OPT_fcompare_debug_
:
3594 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
3595 compare_debug_with_arg
:
3596 gcc_assert (decoded
->canonical_option_num_elements
== 1);
3597 gcc_assert (arg
!= NULL
);
3602 if (compare_debug
< 0)
3603 compare_debug_opt
= NULL
;
3605 compare_debug_opt
= arg
;
3606 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
, true);
3612 /* Pass the rest of this option to the assembler. */
3614 /* Split the argument at commas. */
3616 for (j
= 0; arg
[j
]; j
++)
3619 add_assembler_option (arg
+ prev
, j
- prev
);
3623 /* Record the part after the last comma. */
3624 add_assembler_option (arg
+ prev
, j
- prev
);
3632 /* Pass the rest of this option to the preprocessor. */
3634 /* Split the argument at commas. */
3636 for (j
= 0; arg
[j
]; j
++)
3639 add_preprocessor_option (arg
+ prev
, j
- prev
);
3643 /* Record the part after the last comma. */
3644 add_preprocessor_option (arg
+ prev
, j
- prev
);
3652 /* Split the argument at commas. */
3654 for (j
= 0; arg
[j
]; j
++)
3657 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
3660 /* Record the part after the last comma. */
3661 add_infile (arg
+ prev
, "*");
3667 add_infile (arg
, "*");
3671 case OPT_Xpreprocessor
:
3672 add_preprocessor_option (arg
, strlen (arg
));
3676 case OPT_Xassembler
:
3677 add_assembler_option (arg
, strlen (arg
));
3682 /* POSIX allows separation of -l and the lib arg; canonicalize
3683 by concatenating -l with its arg */
3684 add_infile (concat ("-l", arg
, NULL
), "*");
3689 /* Similarly, canonicalize -L for linkers that may not accept
3690 separate arguments. */
3691 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
, true);
3696 save_switch (concat ("-F", arg
, NULL
), 0, NULL
, validated
, true);
3699 case OPT_save_temps
:
3700 save_temps_flag
= SAVE_TEMPS_CWD
;
3704 case OPT_save_temps_
:
3705 if (strcmp (arg
, "cwd") == 0)
3706 save_temps_flag
= SAVE_TEMPS_CWD
;
3707 else if (strcmp (arg
, "obj") == 0
3708 || strcmp (arg
, "object") == 0)
3709 save_temps_flag
= SAVE_TEMPS_OBJ
;
3711 fatal_error ("%qs is an unknown -save-temps option",
3712 decoded
->orig_option_with_args_text
);
3715 case OPT_no_canonical_prefixes
:
3716 /* Already handled as a special case, so ignored here. */
3722 /* These options set the variables specified in common.opt
3723 automatically, but do need to be saved for spec
3729 struct user_specs
*user
= XNEW (struct user_specs
);
3731 user
->next
= (struct user_specs
*) 0;
3732 user
->filename
= arg
;
3733 if (user_specs_tail
)
3734 user_specs_tail
->next
= user
;
3736 user_specs_head
= user
;
3737 user_specs_tail
= user
;
3743 target_system_root
= arg
;
3744 target_system_root_changed
= 1;
3749 if (report_times_to_file
)
3750 fclose (report_times_to_file
);
3751 report_times_to_file
= fopen (arg
, "a");
3757 This is similar to -v except that there is no execution
3758 of the commands and the echoed arguments are quoted. It
3759 is intended for use in shell scripts to capture the
3760 driver-generated command line. */
3761 verbose_only_flag
++;
3768 size_t len
= strlen (arg
);
3770 /* Catch the case where the user has forgotten to append a
3771 directory separator to the path. Note, they may be using
3772 -B to add an executable name prefix, eg "i386-elf-", in
3773 order to distinguish between multiple installations of
3774 GCC in the same directory. Hence we must check to see
3775 if appending a directory separator actually makes a
3776 valid directory name. */
3777 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
3778 && is_directory (arg
, false))
3780 char *tmp
= XNEWVEC (char, len
+ 2);
3782 tmp
[len
] = DIR_SEPARATOR
;
3787 add_prefix (&exec_prefixes
, arg
, NULL
,
3788 PREFIX_PRIORITY_B_OPT
, 0, 0);
3789 add_prefix (&startfile_prefixes
, arg
, NULL
,
3790 PREFIX_PRIORITY_B_OPT
, 0, 0);
3791 add_prefix (&include_prefixes
, arg
, NULL
,
3792 PREFIX_PRIORITY_B_OPT
, 0, 0);
3799 if (!strcmp (spec_lang
, "none"))
3800 /* Suppress the warning if -xnone comes after the last input
3801 file, because alternate command interfaces like g++ might
3802 find it useful to place -xnone after each input file. */
3805 last_language_n_infiles
= n_infiles
;
3811 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3812 arg
= convert_filename (arg
, ! have_c
, 0);
3815 /* Save the output name in case -save-temps=obj was used. */
3816 save_temps_prefix
= xstrdup (arg
);
3817 /* On some systems, ld cannot handle "-o" without a space. So
3818 split the option from its argument. */
3819 save_switch ("-o", 1, &arg
, validated
, true);
3822 case OPT_static_libgcc
:
3823 case OPT_shared_libgcc
:
3824 case OPT_static_libgfortran
:
3825 case OPT_static_libstdc__
:
3826 /* These are always valid, since gcc.c itself understands the
3827 first two, gfortranspec.c understands -static-libgfortran and
3828 g++spec.c understands -static-libstdc++ */
3837 handle_foffload_option (arg
);
3841 /* Various driver options need no special processing at this
3842 point, having been handled in a prescan above or being
3843 handled by specs. */
3848 save_switch (decoded
->canonical_option
[0],
3849 decoded
->canonical_option_num_elements
- 1,
3850 &decoded
->canonical_option
[1], validated
, true);
3854 /* Put the driver's standard set of option handlers in *HANDLERS. */
3857 set_option_handlers (struct cl_option_handlers
*handlers
)
3859 handlers
->unknown_option_callback
= driver_unknown_option_callback
;
3860 handlers
->wrong_lang_callback
= driver_wrong_lang_callback
;
3861 handlers
->num_handlers
= 3;
3862 handlers
->handlers
[0].handler
= driver_handle_option
;
3863 handlers
->handlers
[0].mask
= CL_DRIVER
;
3864 handlers
->handlers
[1].handler
= common_handle_option
;
3865 handlers
->handlers
[1].mask
= CL_COMMON
;
3866 handlers
->handlers
[2].handler
= target_handle_option
;
3867 handlers
->handlers
[2].mask
= CL_TARGET
;
3870 /* Create the vector `switches' and its contents.
3871 Store its length in `n_switches'. */
3874 process_command (unsigned int decoded_options_count
,
3875 struct cl_decoded_option
*decoded_options
)
3879 char *tooldir_prefix
, *tooldir_prefix2
;
3880 char *(*get_relative_prefix
) (const char *, const char *,
3881 const char *) = NULL
;
3882 struct cl_option_handlers handlers
;
3885 gcc_exec_prefix
= getenv ("GCC_EXEC_PREFIX");
3889 added_libraries
= 0;
3891 /* Figure compiler version from version string. */
3893 compiler_version
= temp1
= xstrdup (version_string
);
3895 for (; *temp1
; ++temp1
)
3904 /* Handle any -no-canonical-prefixes flag early, to assign the function
3905 that builds relative prefixes. This function creates default search
3906 paths that are needed later in normal option handling. */
3908 for (j
= 1; j
< decoded_options_count
; j
++)
3910 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
3912 get_relative_prefix
= make_relative_prefix_ignore_links
;
3916 if (! get_relative_prefix
)
3917 get_relative_prefix
= make_relative_prefix
;
3919 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3920 see if we can create it from the pathname specified in
3921 decoded_options[0].arg. */
3923 gcc_libexec_prefix
= standard_libexec_prefix
;
3925 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3926 if (!gcc_exec_prefix
)
3928 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3929 standard_bindir_prefix
,
3930 standard_exec_prefix
);
3931 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3932 standard_bindir_prefix
,
3933 standard_libexec_prefix
);
3934 if (gcc_exec_prefix
)
3935 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3939 /* make_relative_prefix requires a program name, but
3940 GCC_EXEC_PREFIX is typically a directory name with a trailing
3941 / (which is ignored by make_relative_prefix), so append a
3943 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3944 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
3945 standard_exec_prefix
,
3946 standard_libexec_prefix
);
3948 /* The path is unrelocated, so fallback to the original setting. */
3949 if (!gcc_libexec_prefix
)
3950 gcc_libexec_prefix
= standard_libexec_prefix
;
3956 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3957 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3958 or an automatically created GCC_EXEC_PREFIX from
3959 decoded_options[0].arg. */
3961 /* Do language-specific adjustment/addition of flags. */
3962 lang_specific_driver (&decoded_options
, &decoded_options_count
,
3965 if (gcc_exec_prefix
)
3967 int len
= strlen (gcc_exec_prefix
);
3969 if (len
> (int) sizeof ("/lib/gcc/") - 1
3970 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3972 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3973 if (IS_DIR_SEPARATOR (*temp
)
3974 && filename_ncmp (temp
+ 1, "lib", 3) == 0
3975 && IS_DIR_SEPARATOR (temp
[4])
3976 && filename_ncmp (temp
+ 5, "gcc", 3) == 0)
3977 len
-= sizeof ("/lib/gcc/") - 1;
3980 set_std_prefix (gcc_exec_prefix
, len
);
3981 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3982 PREFIX_PRIORITY_LAST
, 0, 0);
3983 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3984 PREFIX_PRIORITY_LAST
, 0, 0);
3987 /* COMPILER_PATH and LIBRARY_PATH have values
3988 that are lists of directory names with colons. */
3990 temp
= getenv ("COMPILER_PATH");
3993 const char *startp
, *endp
;
3994 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3996 startp
= endp
= temp
;
3999 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4001 strncpy (nstore
, startp
, endp
- startp
);
4003 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4004 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4006 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4007 nstore
[endp
- startp
+ 1] = 0;
4010 nstore
[endp
- startp
] = 0;
4011 add_prefix (&exec_prefixes
, nstore
, 0,
4012 PREFIX_PRIORITY_LAST
, 0, 0);
4013 add_prefix (&include_prefixes
, nstore
, 0,
4014 PREFIX_PRIORITY_LAST
, 0, 0);
4017 endp
= startp
= endp
+ 1;
4024 temp
= getenv (LIBRARY_PATH_ENV
);
4025 if (temp
&& *cross_compile
== '0')
4027 const char *startp
, *endp
;
4028 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4030 startp
= endp
= temp
;
4033 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4035 strncpy (nstore
, startp
, endp
- startp
);
4037 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4038 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4040 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4041 nstore
[endp
- startp
+ 1] = 0;
4044 nstore
[endp
- startp
] = 0;
4045 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4046 PREFIX_PRIORITY_LAST
, 0, 1);
4049 endp
= startp
= endp
+ 1;
4056 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
4057 temp
= getenv ("LPATH");
4058 if (temp
&& *cross_compile
== '0')
4060 const char *startp
, *endp
;
4061 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4063 startp
= endp
= temp
;
4066 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4068 strncpy (nstore
, startp
, endp
- startp
);
4070 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4071 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4073 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4074 nstore
[endp
- startp
+ 1] = 0;
4077 nstore
[endp
- startp
] = 0;
4078 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4079 PREFIX_PRIORITY_LAST
, 0, 1);
4082 endp
= startp
= endp
+ 1;
4089 /* Process the options and store input files and switches in their
4092 last_language_n_infiles
= -1;
4094 set_option_handlers (&handlers
);
4096 for (j
= 1; j
< decoded_options_count
; j
++)
4098 switch (decoded_options
[j
].opt_index
)
4110 for (j
= 1; j
< decoded_options_count
; j
++)
4112 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
4114 const char *arg
= decoded_options
[j
].arg
;
4115 const char *p
= strrchr (arg
, '@');
4119 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4120 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
4122 /* For LTO static archive support we handle input file
4123 specifications that are composed of a filename and
4124 an offset like FNAME@OFFSET. */
4127 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
4128 && strlen (p
) == (unsigned int)consumed
)
4130 fname
= (char *)xmalloc (p
- arg
+ 1);
4131 memcpy (fname
, arg
, p
- arg
);
4132 fname
[p
- arg
] = '\0';
4133 /* Only accept non-stdin and existing FNAME parts, otherwise
4134 try with the full name. */
4135 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
4138 fname
= xstrdup (arg
);
4142 fname
= xstrdup (arg
);
4144 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
4145 perror_with_name (fname
);
4147 add_infile (arg
, spec_lang
);
4153 read_cmdline_option (&global_options
, &global_options_set
,
4154 decoded_options
+ j
, UNKNOWN_LOCATION
,
4155 CL_DRIVER
, &handlers
, global_dc
);
4158 if (output_file
&& strcmp (output_file
, "-"))
4161 for (i
= 0; i
< n_infiles
; i
++)
4162 if ((!infiles
[i
].language
|| infiles
[i
].language
[0] != '*')
4163 && canonical_filename_eq (infiles
[i
].name
, output_file
))
4164 fatal_error ("input file %qs is the same as output file",
4168 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4169 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4170 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
4172 save_temps_length
= strlen (save_temps_prefix
);
4173 temp
= strrchr (lbasename (save_temps_prefix
), '.');
4176 save_temps_length
-= strlen (temp
);
4177 save_temps_prefix
[save_temps_length
] = '\0';
4181 else if (save_temps_prefix
!= NULL
)
4183 free (save_temps_prefix
);
4184 save_temps_prefix
= NULL
;
4187 if (save_temps_flag
&& use_pipes
)
4189 /* -save-temps overrides -pipe, so that temp files are produced */
4190 if (save_temps_flag
)
4191 warning (0, "-pipe ignored because -save-temps specified");
4197 const char *gcd
= getenv ("GCC_COMPARE_DEBUG");
4199 if (gcd
&& gcd
[0] == '-')
4202 compare_debug_opt
= gcd
;
4204 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
4207 compare_debug_opt
= "-gtoggle";
4210 else if (compare_debug
< 0)
4213 gcc_assert (!compare_debug_opt
);
4216 /* Set up the search paths. We add directories that we expect to
4217 contain GNU Toolchain components before directories specified by
4218 the machine description so that we will find GNU components (like
4219 the GNU assembler) before those of the host system. */
4221 /* If we don't know where the toolchain has been installed, use the
4222 configured-in locations. */
4223 if (!gcc_exec_prefix
)
4226 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4227 PREFIX_PRIORITY_LAST
, 1, 0);
4228 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4229 PREFIX_PRIORITY_LAST
, 2, 0);
4230 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4231 PREFIX_PRIORITY_LAST
, 2, 0);
4233 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4234 PREFIX_PRIORITY_LAST
, 1, 0);
4237 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4238 tooldir_prefix2
= concat (tooldir_base_prefix
, spec_host_machine
,
4239 dir_separator_str
, NULL
);
4241 /* Look for tools relative to the location from which the driver is
4242 running, or, if that is not available, the configured prefix. */
4244 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4245 spec_host_machine
, dir_separator_str
, spec_version
,
4246 accel_dir_suffix
, dir_separator_str
, tooldir_prefix2
, NULL
);
4247 free (tooldir_prefix2
);
4249 add_prefix (&exec_prefixes
,
4250 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4251 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4252 add_prefix (&startfile_prefixes
,
4253 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4254 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4255 free (tooldir_prefix
);
4257 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4258 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4259 then consider it to relocate with the rest of the GCC installation
4260 if GCC_EXEC_PREFIX is set.
4261 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4262 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
4264 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4265 standard_bindir_prefix
,
4266 target_system_root
);
4267 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4269 target_system_root
= tmp_prefix
;
4270 target_system_root_changed
= 1;
4275 /* More prefixes are enabled in main, after we read the specs file
4276 and determine whether this is cross-compilation or not. */
4278 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4279 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
4281 /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG
4282 environment variable. */
4283 if (compare_debug
== 2 || compare_debug
== 3)
4285 const char *opt
= concat ("-fcompare-debug=", compare_debug_opt
, NULL
);
4286 save_switch (opt
, 0, NULL
, false, true);
4290 /* Ensure we only invoke each subprocess once. */
4291 if (print_subprocess_help
|| print_help_list
|| print_version
)
4295 /* Create a dummy input file, so that we can pass
4296 the help option on to the various sub-processes. */
4297 add_infile ("help-dummy", "c");
4301 switches
[n_switches
].part1
= 0;
4303 infiles
[n_infiles
].name
= 0;
4306 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4307 and place that in the environment. */
4310 set_collect_gcc_options (void)
4315 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4317 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4318 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4321 for (i
= 0; (int) i
< n_switches
; i
++)
4323 const char *const *args
;
4326 obstack_grow (&collect_obstack
, " ", 1);
4330 /* Ignore elided switches. */
4331 if ((switches
[i
].live_cond
4332 & (SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
))
4336 obstack_grow (&collect_obstack
, "'-", 2);
4337 q
= switches
[i
].part1
;
4338 while ((p
= strchr (q
, '\'')))
4340 obstack_grow (&collect_obstack
, q
, p
- q
);
4341 obstack_grow (&collect_obstack
, "'\\''", 4);
4344 obstack_grow (&collect_obstack
, q
, strlen (q
));
4345 obstack_grow (&collect_obstack
, "'", 1);
4347 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4349 obstack_grow (&collect_obstack
, " '", 2);
4351 while ((p
= strchr (q
, '\'')))
4353 obstack_grow (&collect_obstack
, q
, p
- q
);
4354 obstack_grow (&collect_obstack
, "'\\''", 4);
4357 obstack_grow (&collect_obstack
, q
, strlen (q
));
4358 obstack_grow (&collect_obstack
, "'", 1);
4361 obstack_grow (&collect_obstack
, "\0", 1);
4362 xputenv (XOBFINISH (&collect_obstack
, char *));
4365 /* Process a spec string, accumulating and running commands. */
4367 /* These variables describe the input file name.
4368 input_file_number is the index on outfiles of this file,
4369 so that the output file name can be stored for later use by %o.
4370 input_basename is the start of the part of the input file
4371 sans all directory names, and basename_length is the number
4372 of characters starting there excluding the suffix .c or whatever. */
4374 static const char *gcc_input_filename
;
4375 static int input_file_number
;
4376 size_t input_filename_length
;
4377 static int basename_length
;
4378 static int suffixed_basename_length
;
4379 static const char *input_basename
;
4380 static const char *input_suffix
;
4381 #ifndef HOST_LACKS_INODE_NUMBERS
4382 static struct stat input_stat
;
4384 static int input_stat_set
;
4386 /* The compiler used to process the current input file. */
4387 static struct compiler
*input_file_compiler
;
4389 /* These are variables used within do_spec and do_spec_1. */
4391 /* Nonzero if an arg has been started and not yet terminated
4392 (with space, tab or newline). */
4393 static int arg_going
;
4395 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4396 is a temporary file name. */
4397 static int delete_this_arg
;
4399 /* Nonzero means %w has been seen; the next arg to be terminated
4400 is the output file name of this compilation. */
4401 static int this_is_output_file
;
4403 /* Nonzero means %s has been seen; the next arg to be terminated
4404 is the name of a library file and we should try the standard
4405 search dirs for it. */
4406 static int this_is_library_file
;
4408 /* Nonzero means %T has been seen; the next arg to be terminated
4409 is the name of a linker script and we should try all of the
4410 standard search dirs for it. If it is found insert a --script
4411 command line switch and then substitute the full path in place,
4412 otherwise generate an error message. */
4413 static int this_is_linker_script
;
4415 /* Nonzero means that the input of this command is coming from a pipe. */
4416 static int input_from_pipe
;
4418 /* Nonnull means substitute this for any suffix when outputting a switches
4420 static const char *suffix_subst
;
4422 /* If there is an argument being accumulated, terminate it and store it. */
4425 end_going_arg (void)
4431 obstack_1grow (&obstack
, 0);
4432 string
= XOBFINISH (&obstack
, const char *);
4433 if (this_is_library_file
)
4434 string
= find_file (string
);
4435 if (this_is_linker_script
)
4437 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4439 if (full_script_path
== NULL
)
4441 error ("unable to locate default linker script %qs in the library search paths", string
);
4442 /* Script was not found on search path. */
4445 store_arg ("--script", false, false);
4446 string
= full_script_path
;
4448 store_arg (string
, delete_this_arg
, this_is_output_file
);
4449 if (this_is_output_file
)
4450 outfiles
[input_file_number
] = string
;
4456 /* Parse the WRAPPER string which is a comma separated list of the command line
4457 and insert them into the beginning of argbuf. */
4460 insert_wrapper (const char *wrapper
)
4464 char *buf
= xstrdup (wrapper
);
4466 unsigned int old_length
= argbuf
.length ();
4474 while ((p
= strchr (p
, ',')) != NULL
);
4476 argbuf
.safe_grow (old_length
+ n
);
4477 memmove (argbuf
.address () + n
,
4479 old_length
* sizeof (const_char_p
));
4493 while ((p
= strchr (p
, ',')) != NULL
);
4494 gcc_assert (i
== n
);
4497 /* Process the spec SPEC and run the commands specified therein.
4498 Returns 0 if the spec is successfully processed; -1 if failed. */
4501 do_spec (const char *spec
)
4505 value
= do_spec_2 (spec
);
4507 /* Force out any unfinished command.
4508 If -pipe, this forces out the last command if it ended in `|'. */
4511 if (argbuf
.length () > 0
4512 && !strcmp (argbuf
.last (), "|"))
4515 set_collect_gcc_options ();
4517 if (argbuf
.length () > 0)
4525 do_spec_2 (const char *spec
)
4531 delete_this_arg
= 0;
4532 this_is_output_file
= 0;
4533 this_is_library_file
= 0;
4534 this_is_linker_script
= 0;
4535 input_from_pipe
= 0;
4536 suffix_subst
= NULL
;
4538 result
= do_spec_1 (spec
, 0, NULL
);
4546 /* Process the given spec string and add any new options to the end
4547 of the switches/n_switches array. */
4550 do_option_spec (const char *name
, const char *spec
)
4552 unsigned int i
, value_count
, value_len
;
4553 const char *p
, *q
, *value
;
4554 char *tmp_spec
, *tmp_spec_p
;
4556 if (configure_default_options
[0].name
== NULL
)
4559 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4560 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4562 if (i
== ARRAY_SIZE (configure_default_options
))
4565 value
= configure_default_options
[i
].value
;
4566 value_len
= strlen (value
);
4568 /* Compute the size of the final spec. */
4571 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4577 /* Replace each %(VALUE) by the specified value. */
4578 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4579 + value_count
* (value_len
- strlen ("%(VALUE)")));
4580 tmp_spec_p
= tmp_spec
;
4582 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4584 memcpy (tmp_spec_p
, q
, p
- q
);
4585 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4586 memcpy (tmp_spec_p
, value
, value_len
);
4587 tmp_spec_p
+= value_len
;
4588 q
= p
+ strlen ("%(VALUE)");
4590 strcpy (tmp_spec_p
, q
);
4592 do_self_spec (tmp_spec
);
4595 /* Process the given spec string and add any new options to the end
4596 of the switches/n_switches array. */
4599 do_self_spec (const char *spec
)
4604 do_spec_1 (" ", 0, NULL
);
4606 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
4607 do_self_specs adds the replacements to switches array, so it shouldn't
4608 be processed afterwards. */
4609 for (i
= 0; i
< n_switches
; i
++)
4610 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
4611 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
4613 if (argbuf
.length () > 0)
4615 const char **argbuf_copy
;
4616 struct cl_decoded_option
*decoded_options
;
4617 struct cl_option_handlers handlers
;
4618 unsigned int decoded_options_count
;
4621 /* Create a copy of argbuf with a dummy argv[0] entry for
4622 decode_cmdline_options_to_array. */
4623 argbuf_copy
= XNEWVEC (const char *,
4624 argbuf
.length () + 1);
4625 argbuf_copy
[0] = "";
4626 memcpy (argbuf_copy
+ 1, argbuf
.address (),
4627 argbuf
.length () * sizeof (const char *));
4629 decode_cmdline_options_to_array (argbuf
.length () + 1,
4631 CL_DRIVER
, &decoded_options
,
4632 &decoded_options_count
);
4635 set_option_handlers (&handlers
);
4637 for (j
= 1; j
< decoded_options_count
; j
++)
4639 switch (decoded_options
[j
].opt_index
)
4641 case OPT_SPECIAL_input_file
:
4642 /* Specs should only generate options, not input
4644 if (strcmp (decoded_options
[j
].arg
, "-") != 0)
4645 fatal_error ("switch %qs does not start with %<-%>",
4646 decoded_options
[j
].arg
);
4648 fatal_error ("spec-generated switch is just %<-%>");
4651 case OPT_fcompare_debug_second
:
4652 case OPT_fcompare_debug
:
4653 case OPT_fcompare_debug_
:
4655 /* Avoid duplicate processing of some options from
4656 compare-debug specs; just save them here. */
4657 save_switch (decoded_options
[j
].canonical_option
[0],
4658 (decoded_options
[j
].canonical_option_num_elements
4660 &decoded_options
[j
].canonical_option
[1], false, true);
4664 read_cmdline_option (&global_options
, &global_options_set
,
4665 decoded_options
+ j
, UNKNOWN_LOCATION
,
4666 CL_DRIVER
, &handlers
, global_dc
);
4672 switches
[n_switches
].part1
= 0;
4676 /* Callback for processing %D and %I specs. */
4678 struct spec_path_info
{
4683 bool separate_options
;
4687 spec_path (char *path
, void *data
)
4689 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
4693 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4696 if (info
->append_len
!= 0)
4698 len
= strlen (path
);
4699 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4702 if (!is_directory (path
, true))
4705 do_spec_1 (info
->option
, 1, NULL
);
4706 if (info
->separate_options
)
4707 do_spec_1 (" ", 0, NULL
);
4709 if (info
->append_len
== 0)
4711 len
= strlen (path
);
4712 save
= path
[len
- 1];
4713 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4714 path
[len
- 1] = '\0';
4717 do_spec_1 (path
, 1, NULL
);
4718 do_spec_1 (" ", 0, NULL
);
4720 /* Must not damage the original path. */
4721 if (info
->append_len
== 0)
4722 path
[len
- 1] = save
;
4727 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
4731 create_at_file (char **argv
)
4733 char *temp_file
= make_temp_file ("");
4734 char *at_argument
= concat ("@", temp_file
, NULL
);
4735 FILE *f
= fopen (temp_file
, "w");
4739 fatal_error ("could not open temporary response file %s",
4742 status
= writeargv (argv
, f
);
4745 fatal_error ("could not write to temporary response file %s",
4748 status
= fclose (f
);
4751 fatal_error ("could not close temporary response file %s",
4754 store_arg (at_argument
, 0, 0);
4756 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
4759 /* True if we should compile INFILE. */
4762 compile_input_file_p (struct infile
*infile
)
4764 if ((!infile
->language
) || (infile
->language
[0] != '*'))
4765 if (infile
->incompiler
== input_file_compiler
)
4770 /* Process each member of VEC as a spec. */
4773 do_specs_vec (vec
<char_p
> vec
)
4778 FOR_EACH_VEC_ELT (vec
, ix
, opt
)
4780 do_spec_1 (opt
, 1, NULL
);
4781 /* Make each accumulated option a separate argument. */
4782 do_spec_1 (" ", 0, NULL
);
4786 /* Process the sub-spec SPEC as a portion of a larger spec.
4787 This is like processing a whole spec except that we do
4788 not initialize at the beginning and we do not supply a
4789 newline by default at the end.
4790 INSWITCH nonzero means don't process %-sequences in SPEC;
4791 in this case, % is treated as an ordinary character.
4792 This is used while substituting switches.
4793 INSWITCH nonzero also causes SPC not to terminate an argument.
4795 Value is zero unless a line was finished
4796 and the command on that line reported an error. */
4799 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4801 const char *p
= spec
;
4806 /* If it's an empty string argument to a switch, keep it as is. */
4807 if (inswitch
&& !*p
)
4811 /* If substituting a switch, treat all chars like letters.
4812 Otherwise, NL, SPC, TAB and % are special. */
4813 switch (inswitch
? 'a' : c
)
4818 if (argbuf
.length () > 0
4819 && !strcmp (argbuf
.last (), "|"))
4821 /* A `|' before the newline means use a pipe here,
4822 but only if -pipe was specified.
4823 Otherwise, execute now and don't pass the `|' as an arg. */
4826 input_from_pipe
= 1;
4833 set_collect_gcc_options ();
4835 if (argbuf
.length () > 0)
4841 /* Reinitialize for a new command, and for a new argument. */
4844 delete_this_arg
= 0;
4845 this_is_output_file
= 0;
4846 this_is_library_file
= 0;
4847 this_is_linker_script
= 0;
4848 input_from_pipe
= 0;
4855 obstack_1grow (&obstack
, c
);
4863 /* Reinitialize for a new argument. */
4864 delete_this_arg
= 0;
4865 this_is_output_file
= 0;
4866 this_is_library_file
= 0;
4867 this_is_linker_script
= 0;
4874 fatal_error ("spec %qs invalid", spec
);
4877 if (save_temps_length
)
4878 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4880 obstack_grow (&obstack
, input_basename
, basename_length
);
4881 if (compare_debug
< 0)
4882 obstack_grow (&obstack
, ".gk", 3);
4887 if (save_temps_length
)
4888 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4890 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4891 if (compare_debug
< 0)
4892 obstack_grow (&obstack
, ".gk", 3);
4897 delete_this_arg
= 2;
4900 /* Dump out the directories specified with LIBRARY_PATH,
4901 followed by the absolute directories
4902 that we search for startfiles. */
4905 struct spec_path_info info
;
4908 info
.append_len
= 0;
4909 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4910 /* Used on systems which record the specified -L dirs
4911 and use them to search for dynamic linking.
4912 Relative directories always come from -B,
4913 and it is better not to use them for searching
4914 at run time. In particular, stage1 loses. */
4915 info
.omit_relative
= true;
4917 info
.omit_relative
= false;
4919 info
.separate_options
= false;
4921 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
4926 /* %efoo means report an error with `foo' as error message
4927 and don't execute any more commands for this file. */
4931 while (*p
!= 0 && *p
!= '\n')
4933 buf
= (char *) alloca (p
- q
+ 1);
4934 strncpy (buf
, q
, p
- q
);
4936 error ("%s", _(buf
));
4941 /* %nfoo means report a notice with `foo' on stderr. */
4945 while (*p
!= 0 && *p
!= '\n')
4947 buf
= (char *) alloca (p
- q
+ 1);
4948 strncpy (buf
, q
, p
- q
);
4950 inform (0, "%s", _(buf
));
4960 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4961 defined, and it is not a directory, and it is
4962 writable, use it. Otherwise, treat this like any
4963 other temporary file. */
4965 if ((!save_temps_flag
)
4966 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4967 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4969 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4970 strlen (HOST_BIT_BUCKET
));
4971 delete_this_arg
= 0;
4976 goto create_temp_file
;
4980 obstack_1grow (&obstack
, '-');
4981 delete_this_arg
= 0;
4984 /* consume suffix */
4985 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4987 if (p
[0] == '%' && p
[1] == 'O')
4992 goto create_temp_file
;
4996 /* consume suffix */
4997 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4999 if (p
[0] == '%' && p
[1] == 'O')
5004 goto create_temp_file
;
5010 struct temp_name
*t
;
5012 const char *suffix
= p
;
5013 char *saved_suffix
= NULL
;
5015 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5017 suffix_length
= p
- suffix
;
5018 if (p
[0] == '%' && p
[1] == 'O')
5021 /* We don't support extra suffix characters after %O. */
5022 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
5023 fatal_error ("spec %qs has invalid %<%%0%c%>", spec
, *p
);
5024 if (suffix_length
== 0)
5025 suffix
= TARGET_OBJECT_SUFFIX
;
5029 = XNEWVEC (char, suffix_length
5030 + strlen (TARGET_OBJECT_SUFFIX
) + 1);
5031 strncpy (saved_suffix
, suffix
, suffix_length
);
5032 strcpy (saved_suffix
+ suffix_length
,
5033 TARGET_OBJECT_SUFFIX
);
5035 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
5038 if (compare_debug
< 0)
5040 suffix
= concat (".gk", suffix
, NULL
);
5044 /* If -save-temps=obj and -o were specified, use that for the
5046 if (save_temps_length
)
5049 temp_filename_length
5050 = save_temps_length
+ suffix_length
+ 1;
5051 tmp
= (char *) alloca (temp_filename_length
);
5052 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
5053 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
5054 tmp
[save_temps_length
+ suffix_length
] = '\0';
5055 temp_filename
= save_string (tmp
, save_temps_length
5057 obstack_grow (&obstack
, temp_filename
,
5058 temp_filename_length
);
5060 delete_this_arg
= 0;
5064 /* If the gcc_input_filename has the same suffix specified
5065 for the %g, %u, or %U, and -save-temps is specified,
5066 we could end up using that file as an intermediate
5067 thus clobbering the user's source file (.e.g.,
5068 gcc -save-temps foo.s would clobber foo.s with the
5069 output of cpp0). So check for this condition and
5070 generate a temp file as the intermediate. */
5072 if (save_temps_flag
)
5075 temp_filename_length
= basename_length
+ suffix_length
+ 1;
5076 tmp
= (char *) alloca (temp_filename_length
);
5077 memcpy (tmp
, input_basename
, basename_length
);
5078 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
5079 tmp
[basename_length
+ suffix_length
] = '\0';
5080 temp_filename
= tmp
;
5082 if (filename_cmp (temp_filename
, gcc_input_filename
) != 0)
5084 #ifndef HOST_LACKS_INODE_NUMBERS
5085 struct stat st_temp
;
5087 /* Note, set_input() resets input_stat_set to 0. */
5088 if (input_stat_set
== 0)
5090 input_stat_set
= stat (gcc_input_filename
,
5092 if (input_stat_set
>= 0)
5096 /* If we have the stat for the gcc_input_filename
5097 and we can do the stat for the temp_filename
5098 then the they could still refer to the same
5099 file if st_dev/st_ino's are the same. */
5100 if (input_stat_set
!= 1
5101 || stat (temp_filename
, &st_temp
) < 0
5102 || input_stat
.st_dev
!= st_temp
.st_dev
5103 || input_stat
.st_ino
!= st_temp
.st_ino
)
5105 /* Just compare canonical pathnames. */
5106 char* input_realname
= lrealpath (gcc_input_filename
);
5107 char* temp_realname
= lrealpath (temp_filename
);
5108 bool files_differ
= filename_cmp (input_realname
, temp_realname
);
5109 free (input_realname
);
5110 free (temp_realname
);
5114 temp_filename
= save_string (temp_filename
,
5115 temp_filename_length
+ 1);
5116 obstack_grow (&obstack
, temp_filename
,
5117 temp_filename_length
);
5119 delete_this_arg
= 0;
5125 /* See if we already have an association of %g/%u/%U and
5127 for (t
= temp_names
; t
; t
= t
->next
)
5128 if (t
->length
== suffix_length
5129 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
5130 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
5133 /* Make a new association if needed. %u and %j
5135 if (t
== 0 || c
== 'u' || c
== 'j')
5139 t
= XNEW (struct temp_name
);
5140 t
->next
= temp_names
;
5143 t
->length
= suffix_length
;
5146 t
->suffix
= saved_suffix
;
5147 saved_suffix
= NULL
;
5150 t
->suffix
= save_string (suffix
, suffix_length
);
5151 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
5152 temp_filename
= make_temp_file (t
->suffix
);
5153 temp_filename_length
= strlen (temp_filename
);
5154 t
->filename
= temp_filename
;
5155 t
->filename_length
= temp_filename_length
;
5158 free (saved_suffix
);
5160 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
5161 delete_this_arg
= 1;
5169 if (at_file_supplied
)
5171 /* We are going to expand `%i' to `@FILE', where FILE
5172 is a newly-created temporary filename. The filenames
5173 that would usually be expanded in place of %o will be
5174 written to the temporary file. */
5179 for (i
= 0; i
< n_infiles
; i
++)
5180 if (compile_input_file_p (&infiles
[i
]))
5183 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5185 /* Copy the strings over. */
5186 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
5187 if (compile_input_file_p (&infiles
[i
]))
5189 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
5190 infiles
[i
].compiled
= true;
5195 create_at_file (argv
);
5198 for (i
= 0; (int) i
< n_infiles
; i
++)
5199 if (compile_input_file_p (&infiles
[i
]))
5201 store_arg (infiles
[i
].name
, 0, 0);
5202 infiles
[i
].compiled
= true;
5207 obstack_grow (&obstack
, gcc_input_filename
,
5208 input_filename_length
);
5215 struct spec_path_info info
;
5219 do_spec_1 ("-imultilib", 1, NULL
);
5220 /* Make this a separate argument. */
5221 do_spec_1 (" ", 0, NULL
);
5222 do_spec_1 (multilib_dir
, 1, NULL
);
5223 do_spec_1 (" ", 0, NULL
);
5228 do_spec_1 ("-imultiarch", 1, NULL
);
5229 /* Make this a separate argument. */
5230 do_spec_1 (" ", 0, NULL
);
5231 do_spec_1 (multiarch_dir
, 1, NULL
);
5232 do_spec_1 (" ", 0, NULL
);
5235 if (gcc_exec_prefix
)
5237 do_spec_1 ("-iprefix", 1, NULL
);
5238 /* Make this a separate argument. */
5239 do_spec_1 (" ", 0, NULL
);
5240 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5241 do_spec_1 (" ", 0, NULL
);
5244 if (target_system_root_changed
||
5245 (target_system_root
&& target_sysroot_hdrs_suffix
))
5247 do_spec_1 ("-isysroot", 1, NULL
);
5248 /* Make this a separate argument. */
5249 do_spec_1 (" ", 0, NULL
);
5250 do_spec_1 (target_system_root
, 1, NULL
);
5251 if (target_sysroot_hdrs_suffix
)
5252 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5253 do_spec_1 (" ", 0, NULL
);
5256 info
.option
= "-isystem";
5257 info
.append
= "include";
5258 info
.append_len
= strlen (info
.append
);
5259 info
.omit_relative
= false;
5260 info
.separate_options
= true;
5262 for_each_path (&include_prefixes
, false, info
.append_len
,
5265 info
.append
= "include-fixed";
5266 if (*sysroot_hdrs_suffix_spec
)
5267 info
.append
= concat (info
.append
, dir_separator_str
,
5268 multilib_dir
, NULL
);
5269 info
.append_len
= strlen (info
.append
);
5270 for_each_path (&include_prefixes
, false, info
.append_len
,
5277 int max
= n_infiles
;
5278 max
+= lang_specific_extra_outfiles
;
5280 if (HAVE_GNU_LD
&& at_file_supplied
)
5282 /* We are going to expand `%o' to `@FILE', where FILE
5283 is a newly-created temporary filename. The filenames
5284 that would usually be expanded in place of %o will be
5285 written to the temporary file. */
5290 /* Convert OUTFILES into a form suitable for writeargv. */
5292 /* Determine how many are non-NULL. */
5293 for (n_files
= 0, i
= 0; i
< max
; i
++)
5294 n_files
+= outfiles
[i
] != NULL
;
5296 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5298 /* Copy the strings over. */
5299 for (i
= 0, j
= 0; i
< max
; i
++)
5302 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5307 create_at_file (argv
);
5310 for (i
= 0; i
< max
; i
++)
5312 store_arg (outfiles
[i
], 0, 0);
5317 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5322 this_is_library_file
= 1;
5326 this_is_linker_script
= 1;
5330 outfiles
[input_file_number
] = NULL
;
5334 this_is_output_file
= 1;
5339 unsigned int cur_index
= argbuf
.length ();
5340 /* Handle the {...} following the %W. */
5342 fatal_error ("spec %qs has invalid %<%%W%c%>", spec
, *p
);
5343 p
= handle_braces (p
+ 1);
5347 /* If any args were output, mark the last one for deletion
5349 if (argbuf
.length () != cur_index
)
5350 record_temp_file (argbuf
.last (), 0, 1);
5354 /* %x{OPTION} records OPTION for %X to output. */
5362 /* Skip past the option value and make a copy. */
5364 fatal_error ("spec %qs has invalid %<%%x%c%>", spec
, *p
);
5367 string
= save_string (p1
+ 1, p
- p1
- 2);
5369 /* See if we already recorded this option. */
5370 FOR_EACH_VEC_ELT (linker_options
, ix
, opt
)
5371 if (! strcmp (string
, opt
))
5377 /* This option is new; add it. */
5378 add_linker_option (string
, strlen (string
));
5383 /* Dump out the options accumulated previously using %x. */
5385 do_specs_vec (linker_options
);
5388 /* Dump out the options accumulated previously using -Wa,. */
5390 do_specs_vec (assembler_options
);
5393 /* Dump out the options accumulated previously using -Wp,. */
5395 do_specs_vec (preprocessor_options
);
5398 /* Here are digits and numbers that just process
5399 a certain constant string as a spec. */
5402 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5408 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5414 value
= do_spec_1 (asm_spec
, 0, NULL
);
5420 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5427 const char *const spec
5428 = (input_file_compiler
->cpp_spec
5429 ? input_file_compiler
->cpp_spec
5431 value
= do_spec_1 (spec
, 0, NULL
);
5438 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5444 value
= do_spec_1 (link_spec
, 0, NULL
);
5450 value
= do_spec_1 (lib_spec
, 0, NULL
);
5456 if (multilib_os_dir
== NULL
)
5457 obstack_1grow (&obstack
, '.');
5459 obstack_grow (&obstack
, multilib_os_dir
,
5460 strlen (multilib_os_dir
));
5464 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5470 /* We assume there is a directory
5471 separator at the end of this string. */
5472 if (target_system_root
)
5474 obstack_grow (&obstack
, target_system_root
,
5475 strlen (target_system_root
));
5476 if (target_sysroot_suffix
)
5477 obstack_grow (&obstack
, target_sysroot_suffix
,
5478 strlen (target_sysroot_suffix
));
5483 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5488 /* Here we define characters other than letters and digits. */
5491 p
= handle_braces (p
);
5497 p
= handle_spec_function (p
, NULL
);
5503 obstack_1grow (&obstack
, '%');
5510 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5512 suffix_subst
= save_string (p
- 1, len
+ 1);
5517 /* Henceforth ignore the option(s) matching the pattern
5523 int have_wildcard
= 0;
5528 switch_option
= SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
;
5530 switch_option
= SWITCH_IGNORE
;
5532 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5535 if (p
[len
-1] == '*')
5538 for (i
= 0; i
< n_switches
; i
++)
5539 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5540 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5542 switches
[i
].live_cond
|= switch_option
;
5543 /* User switch be validated from validate_all_switches.
5544 when the definition is seen from the spec file.
5545 If not defined anywhere, will be rejected. */
5546 if (switches
[i
].known
)
5547 switches
[i
].validated
= true;
5555 if (soft_matched_part
)
5557 if (soft_matched_part
[0])
5558 do_spec_1 (soft_matched_part
, 1, NULL
);
5559 /* Only insert a space after the substitution if it is at the
5560 end of the current sequence. So if:
5562 "%{foo=*:bar%*}%{foo=*:one%*two}"
5564 matches -foo=hello then it will produce:
5566 barhello onehellotwo
5568 if (*p
== 0 || *p
== '}')
5569 do_spec_1 (" ", 0, NULL
);
5572 /* Catch the case where a spec string contains something like
5573 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5574 hand side of the :. */
5575 error ("spec failure: %<%%*%> has not been initialized by pattern match");
5578 /* Process a string found as the value of a spec given by name.
5579 This feature allows individual machine descriptions
5580 to add and use their own specs. */
5583 const char *name
= p
;
5584 struct spec_list
*sl
;
5587 /* The string after the S/P is the name of a spec that is to be
5589 while (*p
&& *p
!= ')')
5592 /* See if it's in the list. */
5593 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5594 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5596 name
= *(sl
->ptr_spec
);
5598 fnotice (stderr
, "Processing spec (%s), which is '%s'\n",
5606 value
= do_spec_1 (name
, 0, NULL
);
5611 /* Discard the closing paren. */
5618 error ("spec failure: unrecognized spec option %qc", c
);
5624 /* Backslash: treat next character as ordinary. */
5629 /* Ordinary character: put it into the current argument. */
5630 obstack_1grow (&obstack
, c
);
5634 /* End of string. If we are processing a spec function, we need to
5635 end any pending argument. */
5636 if (processing_spec_function
)
5642 /* Look up a spec function. */
5644 static const struct spec_function
*
5645 lookup_spec_function (const char *name
)
5647 const struct spec_function
*sf
;
5649 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5650 if (strcmp (sf
->name
, name
) == 0)
5656 /* Evaluate a spec function. */
5659 eval_spec_function (const char *func
, const char *args
)
5661 const struct spec_function
*sf
;
5662 const char *funcval
;
5664 /* Saved spec processing context. */
5665 vec
<const_char_p
> save_argbuf
;
5668 int save_delete_this_arg
;
5669 int save_this_is_output_file
;
5670 int save_this_is_library_file
;
5671 int save_input_from_pipe
;
5672 int save_this_is_linker_script
;
5673 const char *save_suffix_subst
;
5675 int save_growing_size
;
5676 void *save_growing_value
= NULL
;
5678 sf
= lookup_spec_function (func
);
5680 fatal_error ("unknown spec function %qs", func
);
5682 /* Push the spec processing context. */
5683 save_argbuf
= argbuf
;
5685 save_arg_going
= arg_going
;
5686 save_delete_this_arg
= delete_this_arg
;
5687 save_this_is_output_file
= this_is_output_file
;
5688 save_this_is_library_file
= this_is_library_file
;
5689 save_this_is_linker_script
= this_is_linker_script
;
5690 save_input_from_pipe
= input_from_pipe
;
5691 save_suffix_subst
= suffix_subst
;
5693 /* If we have some object growing now, finalize it so the args and function
5694 eval proceed from a cleared context. This is needed to prevent the first
5695 constructed arg from mistakenly including the growing value. We'll push
5696 this value back on the obstack once the function evaluation is done, to
5697 restore a consistent processing context for our caller. This is fine as
5698 the address of growing objects isn't guaranteed to remain stable until
5699 they are finalized, and we expect this situation to be rare enough for
5700 the extra copy not to be an issue. */
5701 save_growing_size
= obstack_object_size (&obstack
);
5702 if (save_growing_size
> 0)
5703 save_growing_value
= obstack_finish (&obstack
);
5705 /* Create a new spec processing context, and build the function
5709 if (do_spec_2 (args
) < 0)
5710 fatal_error ("error in args to spec function %qs", func
);
5712 /* argbuf_index is an index for the next argument to be inserted, and
5713 so contains the count of the args already inserted. */
5715 funcval
= (*sf
->func
) (argbuf
.length (),
5718 /* Pop the spec processing context. */
5720 argbuf
= save_argbuf
;
5722 arg_going
= save_arg_going
;
5723 delete_this_arg
= save_delete_this_arg
;
5724 this_is_output_file
= save_this_is_output_file
;
5725 this_is_library_file
= save_this_is_library_file
;
5726 this_is_linker_script
= save_this_is_linker_script
;
5727 input_from_pipe
= save_input_from_pipe
;
5728 suffix_subst
= save_suffix_subst
;
5730 if (save_growing_size
> 0)
5731 obstack_grow (&obstack
, save_growing_value
, save_growing_size
);
5736 /* Handle a spec function call of the form:
5740 ARGS is processed as a spec in a separate context and split into an
5741 argument vector in the normal fashion. The function returns a string
5742 containing a spec which we then process in the caller's context, or
5743 NULL if no processing is required.
5745 If RETVAL_NONNULL is not NULL, then store a bool whether function
5746 returned non-NULL. */
5749 handle_spec_function (const char *p
, bool *retval_nonnull
)
5752 const char *endp
, *funcval
;
5755 processing_spec_function
++;
5757 /* Get the function name. */
5758 for (endp
= p
; *endp
!= '\0'; endp
++)
5760 if (*endp
== '(') /* ) */
5762 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5763 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5764 fatal_error ("malformed spec function name");
5766 if (*endp
!= '(') /* ) */
5767 fatal_error ("no arguments for spec function");
5768 func
= save_string (p
, endp
- p
);
5771 /* Get the arguments. */
5772 for (count
= 0; *endp
!= '\0'; endp
++)
5781 else if (*endp
== '(') /* ) */
5786 fatal_error ("malformed spec function arguments");
5787 args
= save_string (p
, endp
- p
);
5790 /* p now points to just past the end of the spec function expression. */
5792 funcval
= eval_spec_function (func
, args
);
5793 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5796 *retval_nonnull
= funcval
!= NULL
;
5801 processing_spec_function
--;
5806 /* Inline subroutine of handle_braces. Returns true if the current
5807 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5809 input_suffix_matches (const char *atom
, const char *end_atom
)
5811 return (input_suffix
5812 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5813 && input_suffix
[end_atom
- atom
] == '\0');
5816 /* Subroutine of handle_braces. Returns true if the current
5817 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
5819 input_spec_matches (const char *atom
, const char *end_atom
)
5821 return (input_file_compiler
5822 && input_file_compiler
->suffix
5823 && input_file_compiler
->suffix
[0] != '\0'
5824 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
5826 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
5829 /* Subroutine of handle_braces. Returns true if a switch
5830 matching the atom bracketed by ATOM and END_ATOM appeared on the
5833 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5836 int len
= end_atom
- atom
;
5837 int plen
= starred
? len
: -1;
5839 for (i
= 0; i
< n_switches
; i
++)
5840 if (!strncmp (switches
[i
].part1
, atom
, len
)
5841 && (starred
|| switches
[i
].part1
[len
] == '\0')
5842 && check_live_switch (i
, plen
))
5845 /* Check if a switch with separated form matching the atom.
5846 We check -D and -U switches. */
5847 else if (switches
[i
].args
!= 0)
5849 if ((*switches
[i
].part1
== 'D' || *switches
[i
].part1
== 'U')
5850 && *switches
[i
].part1
== atom
[0])
5852 if (!strncmp (switches
[i
].args
[0], &atom
[1], len
- 1)
5853 && (starred
|| (switches
[i
].part1
[1] == '\0'
5854 && switches
[i
].args
[0][len
- 1] == '\0'))
5855 && check_live_switch (i
, (starred
? 1 : -1)))
5863 /* Inline subroutine of handle_braces. Mark all of the switches which
5864 match ATOM (extends to END_ATOM; STARRED indicates whether there
5865 was a star after the atom) for later processing. */
5867 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5870 int len
= end_atom
- atom
;
5871 int plen
= starred
? len
: -1;
5873 for (i
= 0; i
< n_switches
; i
++)
5874 if (!strncmp (switches
[i
].part1
, atom
, len
)
5875 && (starred
|| switches
[i
].part1
[len
] == '\0')
5876 && check_live_switch (i
, plen
))
5877 switches
[i
].ordering
= 1;
5880 /* Inline subroutine of handle_braces. Process all the currently
5881 marked switches through give_switch, and clear the marks. */
5883 process_marked_switches (void)
5887 for (i
= 0; i
< n_switches
; i
++)
5888 if (switches
[i
].ordering
== 1)
5890 switches
[i
].ordering
= 0;
5895 /* Handle a %{ ... } construct. P points just inside the leading {.
5896 Returns a pointer one past the end of the brace block, or 0
5897 if we call do_spec_1 and that returns -1. */
5900 handle_braces (const char *p
)
5902 const char *atom
, *end_atom
;
5903 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5904 const char *orig
= p
;
5912 bool a_must_be_last
= false;
5913 bool ordered_set
= false;
5914 bool disjunct_set
= false;
5915 bool disj_matched
= false;
5916 bool disj_starred
= true;
5917 bool n_way_choice
= false;
5918 bool n_way_matched
= false;
5920 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5927 /* Scan one "atom" (S in the description above of %{}, possibly
5928 with '!', '.', '@', ',', or '*' modifiers). */
5930 a_is_suffix
= false;
5931 a_is_starred
= false;
5932 a_is_negated
= false;
5933 a_is_spectype
= false;
5937 p
++, a_is_negated
= true;
5940 if (*p
== '%' && p
[1] == ':')
5944 p
= handle_spec_function (p
+ 2, &a_matched
);
5949 p
++, a_is_suffix
= true;
5951 p
++, a_is_spectype
= true;
5954 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
5955 || *p
== ',' || *p
== '.' || *p
== '@')
5960 p
++, a_is_starred
= 1;
5967 /* Substitute the switch(es) indicated by the current atom. */
5969 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5970 || a_is_spectype
|| atom
== end_atom
)
5973 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5976 process_marked_switches ();
5980 /* Substitute some text if the current atom appears as a switch
5982 disjunct_set
= true;
5986 if (atom
&& atom
== end_atom
)
5988 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5989 || a_is_negated
|| a_is_suffix
|| a_is_spectype
5993 /* An empty term may appear as the last choice of an
5994 N-way choice set; it means "otherwise". */
5995 a_must_be_last
= true;
5996 disj_matched
= !n_way_matched
;
5997 disj_starred
= false;
6001 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
6005 disj_starred
= false;
6007 /* Don't bother testing this atom if we already have a
6009 if (!disj_matched
&& !n_way_matched
)
6012 /* a_matched is already set by handle_spec_function. */;
6013 else if (a_is_suffix
)
6014 a_matched
= input_suffix_matches (atom
, end_atom
);
6015 else if (a_is_spectype
)
6016 a_matched
= input_spec_matches (atom
, end_atom
);
6018 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
6020 if (a_matched
!= a_is_negated
)
6022 disj_matched
= true;
6024 d_end_atom
= end_atom
;
6031 /* Found the body, that is, the text to substitute if the
6032 current disjunction matches. */
6033 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
6034 disj_matched
&& !n_way_matched
);
6038 /* If we have an N-way choice, reset state for the next
6042 n_way_choice
= true;
6043 n_way_matched
|= disj_matched
;
6044 disj_matched
= false;
6045 disj_starred
= true;
6046 d_atom
= d_end_atom
= NULL
;
6055 while (*p
++ != '}');
6060 fatal_error ("braced spec %qs is invalid at %qc", orig
, *p
);
6065 /* Subroutine of handle_braces. Scan and process a brace substitution body
6066 (X in the description of %{} syntax). P points one past the colon;
6067 ATOM and END_ATOM bracket the first atom which was found to be true
6068 (present) in the current disjunction; STARRED indicates whether all
6069 the atoms in the current disjunction were starred (for syntax validation);
6070 MATCHED indicates whether the disjunction matched or not, and therefore
6071 whether or not the body is to be processed through do_spec_1 or just
6072 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6076 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
6077 int starred
, int matched
)
6079 const char *body
, *end_body
;
6080 unsigned int nesting_level
;
6081 bool have_subst
= false;
6083 /* Locate the closing } or ;, honoring nested braces.
6084 Trim trailing whitespace. */
6093 if (!--nesting_level
)
6096 else if (*p
== ';' && nesting_level
== 1)
6098 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
6100 else if (*p
== '\0')
6106 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
6109 if (have_subst
&& !starred
)
6114 /* Copy the substitution body to permanent storage and execute it.
6115 If have_subst is false, this is a simple matter of running the
6116 body through do_spec_1... */
6117 char *string
= save_string (body
, end_body
- body
);
6120 if (do_spec_1 (string
, 0, NULL
) < 0)
6125 /* ... but if have_subst is true, we have to process the
6126 body once for each matching switch, with %* set to the
6127 variant part of the switch. */
6128 unsigned int hard_match_len
= end_atom
- atom
;
6131 for (i
= 0; i
< n_switches
; i
++)
6132 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
6133 && check_live_switch (i
, hard_match_len
))
6135 if (do_spec_1 (string
, 0,
6136 &switches
[i
].part1
[hard_match_len
]) < 0)
6138 /* Pass any arguments this switch has. */
6140 suffix_subst
= NULL
;
6148 fatal_error ("braced spec body %qs is invalid", body
);
6151 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6152 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6153 spec, or -1 if either exact match or %* is used.
6155 A -O switch is obsoleted by a later -O switch. A -f, -g, -m, or -W switch
6156 whose value does not begin with "no-" is obsoleted by the same value
6157 with the "no-", similarly for a switch with the "no-" prefix. */
6160 check_live_switch (int switchnum
, int prefix_length
)
6162 const char *name
= switches
[switchnum
].part1
;
6165 /* If we already processed this switch and determined if it was
6166 live or not, return our past determination. */
6167 if (switches
[switchnum
].live_cond
!= 0)
6168 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
6169 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
6170 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
6173 /* In the common case of {<at-most-one-letter>*}, a negating
6174 switch would always match, so ignore that case. We will just
6175 send the conflicting switches to the compiler phase. */
6176 if (prefix_length
>= 0 && prefix_length
<= 1)
6179 /* Now search for duplicate in a manner that depends on the name. */
6183 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6184 if (switches
[i
].part1
[0] == 'O')
6186 switches
[switchnum
].validated
= true;
6187 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6192 case 'W': case 'f': case 'm': case 'g':
6193 if (! strncmp (name
+ 1, "no-", 3))
6195 /* We have Xno-YYY, search for XYYY. */
6196 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6197 if (switches
[i
].part1
[0] == name
[0]
6198 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6200 /* --specs are validated with the validate_switches mechanism. */
6201 if (switches
[switchnum
].known
)
6202 switches
[switchnum
].validated
= true;
6203 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6209 /* We have XYYY, search for Xno-YYY. */
6210 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6211 if (switches
[i
].part1
[0] == name
[0]
6212 && switches
[i
].part1
[1] == 'n'
6213 && switches
[i
].part1
[2] == 'o'
6214 && switches
[i
].part1
[3] == '-'
6215 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6217 /* --specs are validated with the validate_switches mechanism. */
6218 if (switches
[switchnum
].known
)
6219 switches
[switchnum
].validated
= true;
6220 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6227 /* Otherwise the switch is live. */
6228 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6232 /* Pass a switch to the current accumulating command
6233 in the same form that we received it.
6234 SWITCHNUM identifies the switch; it is an index into
6235 the vector of switches gcc received, which is `switches'.
6236 This cannot fail since it never finishes a command line.
6238 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6241 give_switch (int switchnum
, int omit_first_word
)
6243 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6246 if (!omit_first_word
)
6248 do_spec_1 ("-", 0, NULL
);
6249 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6252 if (switches
[switchnum
].args
!= 0)
6255 for (p
= switches
[switchnum
].args
; *p
; p
++)
6257 const char *arg
= *p
;
6259 do_spec_1 (" ", 0, NULL
);
6262 unsigned length
= strlen (arg
);
6265 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6266 if (arg
[length
] == '.')
6268 (CONST_CAST (char *, arg
))[length
] = 0;
6272 do_spec_1 (arg
, 1, NULL
);
6274 (CONST_CAST (char *, arg
))[length
] = '.';
6275 do_spec_1 (suffix_subst
, 1, NULL
);
6278 do_spec_1 (arg
, 1, NULL
);
6282 do_spec_1 (" ", 0, NULL
);
6283 switches
[switchnum
].validated
= true;
6286 /* Print GCC configuration (e.g. version, thread model, target,
6287 configuration_arguments) to a given FILE. */
6290 print_configuration (FILE *file
)
6295 fnotice (file
, "Target: %s\n", spec_machine
);
6296 fnotice (file
, "Configured with: %s\n", configuration_arguments
);
6298 #ifdef THREAD_MODEL_SPEC
6299 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6300 but there's no point in doing all this processing just to get
6301 thread_model back. */
6302 obstack_init (&obstack
);
6303 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6304 obstack_1grow (&obstack
, '\0');
6305 thrmod
= XOBFINISH (&obstack
, const char *);
6307 thrmod
= thread_model
;
6310 fnotice (file
, "Thread model: %s\n", thrmod
);
6312 /* compiler_version is truncated at the first space when initialized
6313 from version string, so truncate version_string at the first space
6314 before comparing. */
6315 for (n
= 0; version_string
[n
]; n
++)
6316 if (version_string
[n
] == ' ')
6319 if (! strncmp (version_string
, compiler_version
, n
)
6320 && compiler_version
[n
] == 0)
6321 fnotice (file
, "gcc version %s %s\n\n", version_string
,
6324 fnotice (file
, "gcc driver version %s %sexecuting gcc version %s\n\n",
6325 version_string
, pkgversion_string
, compiler_version
);
6329 #define RETRY_ICE_ATTEMPTS 3
6331 /* Returns true if FILE1 and FILE2 contain equivalent data, 0 otherwise. */
6334 files_equal_p (char *file1
, char *file2
)
6336 struct stat st1
, st2
;
6339 const int bufsize
= 8192;
6340 char *buf
= XNEWVEC (char, bufsize
);
6342 fd1
= open (file1
, O_RDONLY
);
6343 fd2
= open (file2
, O_RDONLY
);
6345 if (fd1
< 0 || fd2
< 0)
6348 if (fstat (fd1
, &st1
) < 0 || fstat (fd2
, &st2
) < 0)
6351 if (st1
.st_size
!= st2
.st_size
)
6354 for (n
= st1
.st_size
; n
; n
-= len
)
6357 if ((int) len
> bufsize
/ 2)
6360 if (read (fd1
, buf
, len
) != (int) len
6361 || read (fd2
, buf
+ bufsize
/ 2, len
) != (int) len
)
6366 if (memcmp (buf
, buf
+ bufsize
/ 2, len
) != 0)
6383 /* Check that compiler's output doesn't differ across runs.
6384 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are arrays of files, containing
6385 stdout and stderr for each compiler run. Return true if all of
6386 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are equivalent. */
6389 check_repro (char **temp_stdout_files
, char **temp_stderr_files
)
6392 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
- 2; ++i
)
6394 if (!files_equal_p (temp_stdout_files
[i
], temp_stdout_files
[i
+ 1])
6395 || !files_equal_p (temp_stderr_files
[i
], temp_stderr_files
[i
+ 1]))
6397 fnotice (stderr
, "The bug is not reproducible, so it is"
6398 " likely a hardware or OS problem.\n");
6402 return i
== RETRY_ICE_ATTEMPTS
- 2;
6405 enum attempt_status
{
6406 ATTEMPT_STATUS_FAIL_TO_RUN
,
6407 ATTEMPT_STATUS_SUCCESS
,
6412 /* Run compiler with arguments NEW_ARGV to reproduce the ICE, storing stdout
6413 to OUT_TEMP and stderr to ERR_TEMP. If APPEND is TRUE, append to OUT_TEMP
6414 and ERR_TEMP instead of truncating. If EMIT_SYSTEM_INFO is TRUE, also write
6415 GCC configuration into to ERR_TEMP. Return ATTEMPT_STATUS_FAIL_TO_RUN if
6416 compiler failed to run, ATTEMPT_STATUS_ICE if compiled ICE-ed and
6417 ATTEMPT_STATUS_SUCCESS otherwise. */
6419 static enum attempt_status
6420 run_attempt (const char **new_argv
, const char *out_temp
,
6421 const char *err_temp
, int emit_system_info
, int append
)
6424 if (emit_system_info
)
6426 FILE *file_out
= fopen (err_temp
, "a");
6427 print_configuration (file_out
);
6433 struct pex_obj
*pex
;
6435 int pex_flags
= PEX_USE_PIPES
| PEX_LAST
;
6436 enum attempt_status status
= ATTEMPT_STATUS_FAIL_TO_RUN
;
6439 pex_flags
|= PEX_STDOUT_APPEND
| PEX_STDERR_APPEND
;
6441 pex
= pex_init (PEX_USE_PIPES
, new_argv
[0], NULL
);
6443 fatal_error ("pex_init failed: %m");
6445 errmsg
= pex_run (pex
, pex_flags
, new_argv
[0],
6446 CONST_CAST2 (char *const *, const char **, &new_argv
[1]), out_temp
,
6451 fatal_error (errmsg
);
6455 pfatal_with_name (errmsg
);
6459 if (!pex_get_status (pex
, 1, &exit_status
))
6462 switch (WEXITSTATUS (exit_status
))
6465 status
= ATTEMPT_STATUS_ICE
;
6468 case SUCCESS_EXIT_CODE
:
6469 status
= ATTEMPT_STATUS_SUCCESS
;
6481 /* This routine adds preprocessed source code into the given ERR_FILE.
6482 To do this, it adds "-E" to NEW_ARGV and execute RUN_ATTEMPT routine to
6483 add information in report file. RUN_ATTEMPT should return
6484 ATTEMPT_STATUS_SUCCESS, in other case we cannot generate the report. */
6487 do_report_bug (const char **new_argv
, const int nargs
,
6488 char **out_file
, char **err_file
)
6491 int fd
= open (*out_file
, O_RDWR
| O_APPEND
);
6494 write (fd
, "\n//", 3);
6495 for (i
= 0; i
< nargs
; i
++)
6498 write (fd
, new_argv
[i
], strlen (new_argv
[i
]));
6500 write (fd
, "\n\n", 2);
6502 new_argv
[nargs
] = "-E";
6503 new_argv
[nargs
+ 1] = NULL
;
6505 status
= run_attempt (new_argv
, *out_file
, *err_file
, 0, 1);
6507 if (status
== ATTEMPT_STATUS_SUCCESS
)
6509 fnotice (stderr
, "Preprocessed source stored into %s file,"
6510 " please attach this to your bugreport.\n", *out_file
);
6511 /* Make sure it is not deleted. */
6517 /* Append string STR to file FILE. */
6520 append_text (char *file
, const char *str
)
6522 int fd
= open (file
, O_RDWR
| O_APPEND
);
6526 write (fd
, str
, strlen (str
));
6530 /* Try to reproduce ICE. If bug is reproducible, generate report .err file
6531 containing GCC configuration, backtrace, compiler's command line options
6532 and preprocessed source code. */
6535 try_generate_repro (const char **argv
)
6537 int i
, nargs
, out_arg
= -1, quiet
= 0, attempt
;
6538 const char **new_argv
;
6539 char *temp_files
[RETRY_ICE_ATTEMPTS
* 2];
6540 char **temp_stdout_files
= &temp_files
[0];
6541 char **temp_stderr_files
= &temp_files
[RETRY_ICE_ATTEMPTS
];
6543 if (gcc_input_filename
== NULL
|| ! strcmp (gcc_input_filename
, "-"))
6546 for (nargs
= 0; argv
[nargs
] != NULL
; ++nargs
)
6547 /* Only retry compiler ICEs, not preprocessor ones. */
6548 if (! strcmp (argv
[nargs
], "-E"))
6550 else if (argv
[nargs
][0] == '-' && argv
[nargs
][1] == 'o')
6557 /* If the compiler is going to output any time information,
6558 it might varry between invocations. */
6559 else if (! strcmp (argv
[nargs
], "-quiet"))
6561 else if (! strcmp (argv
[nargs
], "-ftime-report"))
6564 if (out_arg
== -1 || !quiet
)
6567 memset (temp_files
, '\0', sizeof (temp_files
));
6568 new_argv
= XALLOCAVEC (const char *, nargs
+ 4);
6569 memcpy (new_argv
, argv
, (nargs
+ 1) * sizeof (const char *));
6570 new_argv
[nargs
++] = "-frandom-seed=0";
6571 new_argv
[nargs
++] = "-fdump-noaddr";
6572 new_argv
[nargs
] = NULL
;
6573 if (new_argv
[out_arg
][2] == '\0')
6574 new_argv
[out_arg
+ 1] = "-";
6576 new_argv
[out_arg
] = "-o-";
6579 for (attempt
= 0; attempt
< RETRY_ICE_ATTEMPTS
; ++attempt
)
6581 int emit_system_info
= 0;
6583 temp_stdout_files
[attempt
] = make_temp_file (".out");
6584 temp_stderr_files
[attempt
] = make_temp_file (".err");
6586 if (attempt
== RETRY_ICE_ATTEMPTS
- 1)
6589 emit_system_info
= 1;
6592 if (emit_system_info
)
6593 append_text (temp_stderr_files
[attempt
], "/*\n");
6595 status
= run_attempt (new_argv
, temp_stdout_files
[attempt
],
6596 temp_stderr_files
[attempt
], emit_system_info
,
6599 if (emit_system_info
)
6600 append_text (temp_stderr_files
[attempt
], "*/\n");
6602 if (status
!= ATTEMPT_STATUS_ICE
)
6604 fnotice (stderr
, "The bug is not reproducible, so it is"
6605 " likely a hardware or OS problem.\n");
6610 if (!check_repro (temp_stdout_files
, temp_stderr_files
))
6613 /* In final attempt we append compiler options and preprocesssed code to last
6614 generated .err file with configuration and backtrace. */
6615 do_report_bug (new_argv
, nargs
,
6616 &temp_stderr_files
[RETRY_ICE_ATTEMPTS
- 1],
6617 &temp_stdout_files
[RETRY_ICE_ATTEMPTS
- 1]);
6620 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
* 2; i
++)
6623 unlink (temp_stdout_files
[i
]);
6624 free (temp_stdout_files
[i
]);
6628 /* Search for a file named NAME trying various prefixes including the
6629 user's -B prefix and some standard ones.
6630 Return the absolute file name found. If nothing is found, return NAME. */
6633 find_file (const char *name
)
6635 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
6636 return newname
? newname
: name
;
6639 /* Determine whether a directory exists. If LINKER, return 0 for
6640 certain fixed names not needed by the linker. */
6643 is_directory (const char *path1
, bool linker
)
6650 /* Ensure the string ends with "/.". The resulting path will be a
6651 directory even if the given path is a symbolic link. */
6652 len1
= strlen (path1
);
6653 path
= (char *) alloca (3 + len1
);
6654 memcpy (path
, path1
, len1
);
6656 if (!IS_DIR_SEPARATOR (cp
[-1]))
6657 *cp
++ = DIR_SEPARATOR
;
6661 /* Exclude directories that the linker is known to search. */
6663 && IS_DIR_SEPARATOR (path
[0])
6665 && filename_ncmp (path
+ 1, "lib", 3) == 0)
6667 && filename_ncmp (path
+ 1, "usr", 3) == 0
6668 && IS_DIR_SEPARATOR (path
[4])
6669 && filename_ncmp (path
+ 5, "lib", 3) == 0)))
6672 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6675 /* Set up the various global variables to indicate that we're processing
6676 the input file named FILENAME. */
6679 set_input (const char *filename
)
6683 gcc_input_filename
= filename
;
6684 input_filename_length
= strlen (gcc_input_filename
);
6685 input_basename
= lbasename (gcc_input_filename
);
6687 /* Find a suffix starting with the last period,
6688 and set basename_length to exclude that suffix. */
6689 basename_length
= strlen (input_basename
);
6690 suffixed_basename_length
= basename_length
;
6691 p
= input_basename
+ basename_length
;
6692 while (p
!= input_basename
&& *p
!= '.')
6694 if (*p
== '.' && p
!= input_basename
)
6696 basename_length
= p
- input_basename
;
6697 input_suffix
= p
+ 1;
6702 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6703 we will need to do a stat on the gcc_input_filename. The
6704 INPUT_STAT_SET signals that the stat is needed. */
6708 /* On fatal signals, delete all the temporary files. */
6711 fatal_signal (int signum
)
6713 signal (signum
, SIG_DFL
);
6714 delete_failure_queue ();
6715 delete_temp_files ();
6716 /* Get the same signal again, this time not handled,
6717 so its normal effect occurs. */
6718 kill (getpid (), signum
);
6721 /* Compare the contents of the two files named CMPFILE[0] and
6722 CMPFILE[1]. Return zero if they're identical, nonzero
6726 compare_files (char *cmpfile
[])
6729 FILE *temp
[2] = { NULL
, NULL
};
6735 void *map
[2] = { NULL
, NULL
};
6737 for (i
= 0; i
< 2; i
++)
6741 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
6743 error ("%s: could not determine length of compare-debug file %s",
6744 gcc_input_filename
, cmpfile
[i
]);
6749 length
[i
] = st
.st_size
;
6752 if (!ret
&& length
[0] != length
[1])
6754 error ("%s: -fcompare-debug failure (length)", gcc_input_filename
);
6759 for (i
= 0; i
< 2; i
++)
6761 int fd
= open (cmpfile
[i
], O_RDONLY
);
6764 error ("%s: could not open compare-debug file %s",
6765 gcc_input_filename
, cmpfile
[i
]);
6770 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
6773 if (map
[i
] == (void *) MAP_FAILED
)
6782 if (memcmp (map
[0], map
[1], length
[0]) != 0)
6784 error ("%s: -fcompare-debug failure", gcc_input_filename
);
6789 for (i
= 0; i
< 2; i
++)
6791 munmap ((caddr_t
) map
[i
], length
[i
]);
6800 for (i
= 0; i
< 2; i
++)
6802 temp
[i
] = fopen (cmpfile
[i
], "r");
6805 error ("%s: could not open compare-debug file %s",
6806 gcc_input_filename
, cmpfile
[i
]);
6812 if (!ret
&& temp
[0] && temp
[1])
6816 c0
= fgetc (temp
[0]);
6817 c1
= fgetc (temp
[1]);
6821 error ("%s: -fcompare-debug failure",
6822 gcc_input_filename
);
6831 for (i
= 1; i
>= 0; i
--)
6840 /* The top-level "main" within the driver would be ~1000 lines long.
6841 This class breaks it up into smaller functions and contains some
6842 state shared by them. */
6847 int main (int argc
, char **argv
);
6850 void set_progname (const char *argv0
) const;
6851 void expand_at_files (int *argc
, char ***argv
) const;
6852 void decode_argv (int argc
, const char **argv
);
6853 void global_initializations ();
6854 void build_multilib_strings () const;
6855 void set_up_specs () const;
6856 void putenv_COLLECT_GCC (const char *argv0
) const;
6857 void maybe_putenv_COLLECT_LTO_WRAPPER () const;
6858 void maybe_putenv_OFFLOAD_TARGETS () const;
6859 void handle_unrecognized_options () const;
6860 int maybe_print_and_exit () const;
6861 bool prepare_infiles ();
6862 void do_spec_on_infiles () const;
6863 void maybe_run_linker (const char *argv0
) const;
6864 void final_actions () const;
6865 int get_exit_code () const;
6868 char *explicit_link_files
;
6869 struct cl_decoded_option
*decoded_options
;
6870 unsigned int decoded_options_count
;
6873 /* Implement the top-level "main" within the driver in terms of
6876 extern int main (int, char **);
6879 main (int argc
, char **argv
)
6883 return d
.main (argc
, argv
);
6886 /* driver::main is implemented as a series of driver:: method calls. */
6889 driver::main (int argc
, char **argv
)
6893 set_progname (argv
[0]);
6894 expand_at_files (&argc
, &argv
);
6895 decode_argv (argc
, const_cast <const char **> (argv
));
6896 global_initializations ();
6897 build_multilib_strings ();
6899 putenv_COLLECT_GCC (argv
[0]);
6900 maybe_putenv_COLLECT_LTO_WRAPPER ();
6901 maybe_putenv_OFFLOAD_TARGETS ();
6902 handle_unrecognized_options ();
6904 if (!maybe_print_and_exit ())
6907 early_exit
= prepare_infiles ();
6909 return get_exit_code ();
6911 do_spec_on_infiles ();
6912 maybe_run_linker (argv
[0]);
6914 return get_exit_code ();
6917 /* Locate the final component of argv[0] after any leading path, and set
6918 the program name accordingly. */
6921 driver::set_progname (const char *argv0
) const
6923 const char *p
= argv0
+ strlen (argv0
);
6924 while (p
!= argv0
&& !IS_DIR_SEPARATOR (p
[-1]))
6928 xmalloc_set_program_name (progname
);
6931 /* Expand any @ files within the command-line args,
6932 setting at_file_supplied if any were expanded. */
6935 driver::expand_at_files (int *argc
, char ***argv
) const
6937 char **old_argv
= *argv
;
6939 expandargv (argc
, argv
);
6941 /* Determine if any expansions were made. */
6942 if (*argv
!= old_argv
)
6943 at_file_supplied
= true;
6946 /* Decode the command-line arguments from argc/argv into the
6947 decoded_options array. */
6950 driver::decode_argv (int argc
, const char **argv
)
6952 /* Register the language-independent parameters. */
6953 global_init_params ();
6956 init_options_struct (&global_options
, &global_options_set
);
6958 decode_cmdline_options_to_array (argc
, argv
,
6960 &decoded_options
, &decoded_options_count
);
6963 /* Perform various initializations and setup. */
6966 driver::global_initializations ()
6968 /* Unlock the stdio streams. */
6969 unlock_std_streams ();
6971 gcc_init_libintl ();
6973 diagnostic_initialize (global_dc
, 0);
6975 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6976 /* Perform host dependent initialization when needed. */
6977 GCC_DRIVER_HOST_INITIALIZATION
;
6980 if (atexit (delete_temp_files
) != 0)
6981 fatal_error ("atexit failed");
6983 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6984 signal (SIGINT
, fatal_signal
);
6986 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6987 signal (SIGHUP
, fatal_signal
);
6989 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6990 signal (SIGTERM
, fatal_signal
);
6992 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6993 signal (SIGPIPE
, fatal_signal
);
6996 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6997 receive the signal. A different setting is inheritable */
6998 signal (SIGCHLD
, SIG_DFL
);
7001 /* Parsing and gimplification sometimes need quite large stack.
7002 Increase stack size limits if possible. */
7003 stack_limit_increase (64 * 1024 * 1024);
7005 /* Allocate the argument vector. */
7008 obstack_init (&obstack
);
7011 /* Build multilib_select, et. al from the separate lines that make up each
7012 multilib selection. */
7015 driver::build_multilib_strings () const
7019 const char *const *q
= multilib_raw
;
7022 obstack_init (&multilib_obstack
);
7023 while ((p
= *q
++) != (char *) 0)
7024 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7026 obstack_1grow (&multilib_obstack
, 0);
7027 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
7029 q
= multilib_matches_raw
;
7030 while ((p
= *q
++) != (char *) 0)
7031 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7033 obstack_1grow (&multilib_obstack
, 0);
7034 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
7036 q
= multilib_exclusions_raw
;
7037 while ((p
= *q
++) != (char *) 0)
7038 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7040 obstack_1grow (&multilib_obstack
, 0);
7041 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
7043 q
= multilib_reuse_raw
;
7044 while ((p
= *q
++) != (char *) 0)
7045 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7047 obstack_1grow (&multilib_obstack
, 0);
7048 multilib_reuse
= XOBFINISH (&multilib_obstack
, const char *);
7051 for (size_t i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
7054 obstack_1grow (&multilib_obstack
, ' ');
7055 obstack_grow (&multilib_obstack
,
7056 multilib_defaults_raw
[i
],
7057 strlen (multilib_defaults_raw
[i
]));
7061 obstack_1grow (&multilib_obstack
, 0);
7062 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
7066 /* Set up the spec-handling machinery. */
7069 driver::set_up_specs () const
7071 const char *spec_machine_suffix
;
7075 #ifdef INIT_ENVIRONMENT
7076 /* Set up any other necessary machine specific environment variables. */
7077 xputenv (INIT_ENVIRONMENT
);
7080 /* Make a table of what switches there are (switches, n_switches).
7081 Make a table of specified input files (infiles, n_infiles).
7082 Decode switches that are handled locally. */
7084 process_command (decoded_options_count
, decoded_options
);
7086 /* Initialize the vector of specs to just the default.
7087 This means one element containing 0s, as a terminator. */
7089 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
7090 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
7091 n_compilers
= n_default_compilers
;
7093 /* Read specs from a file if there is one. */
7095 machine_suffix
= concat (spec_host_machine
, dir_separator_str
, spec_version
,
7096 accel_dir_suffix
, dir_separator_str
, NULL
);
7097 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
7099 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
7100 /* Read the specs file unless it is a default one. */
7101 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
7102 read_specs (specs_file
, true, false);
7106 #ifdef ACCEL_COMPILER
7107 spec_machine_suffix
= machine_suffix
;
7109 spec_machine_suffix
= just_machine_suffix
;
7112 /* We need to check standard_exec_prefix/spec_machine_suffix/specs
7113 for any override of as, ld and libraries. */
7114 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
7115 + strlen (spec_machine_suffix
) + sizeof ("specs"));
7116 strcpy (specs_file
, standard_exec_prefix
);
7117 strcat (specs_file
, spec_machine_suffix
);
7118 strcat (specs_file
, "specs");
7119 if (access (specs_file
, R_OK
) == 0)
7120 read_specs (specs_file
, true, false);
7122 /* Process any configure-time defaults specified for the command line
7123 options, via OPTION_DEFAULT_SPECS. */
7124 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
7125 do_option_spec (option_default_specs
[i
].name
,
7126 option_default_specs
[i
].spec
);
7128 /* Process DRIVER_SELF_SPECS, adding any new options to the end
7129 of the command line. */
7131 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
7132 do_self_spec (driver_self_specs
[i
]);
7134 /* If not cross-compiling, look for executables in the standard
7136 if (*cross_compile
== '0')
7138 if (*md_exec_prefix
)
7140 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
7141 PREFIX_PRIORITY_LAST
, 0, 0);
7145 /* Process sysroot_suffix_spec. */
7146 if (*sysroot_suffix_spec
!= 0
7147 && !no_sysroot_suffix
7148 && do_spec_2 (sysroot_suffix_spec
) == 0)
7150 if (argbuf
.length () > 1)
7151 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
7152 else if (argbuf
.length () == 1)
7153 target_sysroot_suffix
= xstrdup (argbuf
.last ());
7156 #ifdef HAVE_LD_SYSROOT
7157 /* Pass the --sysroot option to the linker, if it supports that. If
7158 there is a sysroot_suffix_spec, it has already been processed by
7159 this point, so target_system_root really is the system root we
7161 if (target_system_root
)
7163 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
7164 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
7165 set_spec ("link", XOBFINISH (&obstack
, const char *), false);
7169 /* Process sysroot_hdrs_suffix_spec. */
7170 if (*sysroot_hdrs_suffix_spec
!= 0
7171 && !no_sysroot_suffix
7172 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
7174 if (argbuf
.length () > 1)
7175 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
7176 else if (argbuf
.length () == 1)
7177 target_sysroot_hdrs_suffix
= xstrdup (argbuf
.last ());
7180 /* Look for startfiles in the standard places. */
7181 if (*startfile_prefix_spec
!= 0
7182 && do_spec_2 (startfile_prefix_spec
) == 0
7183 && do_spec_1 (" ", 0, NULL
) == 0)
7187 FOR_EACH_VEC_ELT (argbuf
, ndx
, arg
)
7188 add_sysrooted_prefix (&startfile_prefixes
, arg
, "BINUTILS",
7189 PREFIX_PRIORITY_LAST
, 0, 1);
7191 /* We should eventually get rid of all these and stick to
7192 startfile_prefix_spec exclusively. */
7193 else if (*cross_compile
== '0' || target_system_root
)
7195 if (*md_startfile_prefix
)
7196 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
7197 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7199 if (*md_startfile_prefix_1
)
7200 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
7201 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7203 /* If standard_startfile_prefix is relative, base it on
7204 standard_exec_prefix. This lets us move the installed tree
7205 as a unit. If GCC_EXEC_PREFIX is defined, base
7206 standard_startfile_prefix on that as well.
7208 If the prefix is relative, only search it for native compilers;
7209 otherwise we will search a directory containing host libraries. */
7210 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
7211 add_sysrooted_prefix (&startfile_prefixes
,
7212 standard_startfile_prefix
, "BINUTILS",
7213 PREFIX_PRIORITY_LAST
, 0, 1);
7214 else if (*cross_compile
== '0')
7216 add_prefix (&startfile_prefixes
,
7217 concat (gcc_exec_prefix
7218 ? gcc_exec_prefix
: standard_exec_prefix
,
7220 standard_startfile_prefix
, NULL
),
7221 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
7224 /* Sysrooted prefixes are relocated because target_system_root is
7225 also relocated by gcc_exec_prefix. */
7226 if (*standard_startfile_prefix_1
)
7227 add_sysrooted_prefix (&startfile_prefixes
,
7228 standard_startfile_prefix_1
, "BINUTILS",
7229 PREFIX_PRIORITY_LAST
, 0, 1);
7230 if (*standard_startfile_prefix_2
)
7231 add_sysrooted_prefix (&startfile_prefixes
,
7232 standard_startfile_prefix_2
, "BINUTILS",
7233 PREFIX_PRIORITY_LAST
, 0, 1);
7236 /* Process any user specified specs in the order given on the command
7238 for (struct user_specs
*uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
7240 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
7242 read_specs (filename
? filename
: uptr
->filename
, false, true);
7245 /* Process any user self specs. */
7247 struct spec_list
*sl
;
7248 for (sl
= specs
; sl
; sl
= sl
->next
)
7249 if (sl
->name_len
== sizeof "self_spec" - 1
7250 && !strcmp (sl
->name
, "self_spec"))
7251 do_self_spec (*sl
->ptr_spec
);
7256 enum save_temps save
;
7258 if (!compare_debug_second
)
7260 n_switches_debug_check
[1] = n_switches
;
7261 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
7262 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
7265 do_self_spec ("%:compare-debug-self-opt()");
7266 n_switches_debug_check
[0] = n_switches
;
7267 n_switches_alloc_debug_check
[0] = n_switches_alloc
;
7268 switches_debug_check
[0] = switches
;
7270 n_switches
= n_switches_debug_check
[1];
7271 n_switches_alloc
= n_switches_alloc_debug_check
[1];
7272 switches
= switches_debug_check
[1];
7275 /* Avoid crash when computing %j in this early. */
7276 save
= save_temps_flag
;
7277 save_temps_flag
= SAVE_TEMPS_NONE
;
7279 compare_debug
= -compare_debug
;
7280 do_self_spec ("%:compare-debug-self-opt()");
7282 save_temps_flag
= save
;
7284 if (!compare_debug_second
)
7286 n_switches_debug_check
[1] = n_switches
;
7287 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
7288 switches_debug_check
[1] = switches
;
7289 compare_debug
= -compare_debug
;
7290 n_switches
= n_switches_debug_check
[0];
7291 n_switches_alloc
= n_switches_debug_check
[0];
7292 switches
= switches_debug_check
[0];
7297 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
7298 if (gcc_exec_prefix
)
7299 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_host_machine
,
7300 dir_separator_str
, spec_version
,
7301 accel_dir_suffix
, dir_separator_str
, NULL
);
7303 /* Now we have the specs.
7304 Set the `valid' bits for switches that match anything in any spec. */
7306 validate_all_switches ();
7308 /* Now that we have the switches and the specs, set
7309 the subdirectory based on the options. */
7310 set_multilib_dir ();
7313 /* Set up to remember the pathname of gcc and any options
7314 needed for collect. We use argv[0] instead of progname because
7315 we need the complete pathname. */
7318 driver::putenv_COLLECT_GCC (const char *argv0
) const
7320 obstack_init (&collect_obstack
);
7321 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
7322 obstack_grow (&collect_obstack
, argv0
, strlen (argv0
) + 1);
7323 xputenv (XOBFINISH (&collect_obstack
, char *));
7326 /* Set up to remember the pathname of the lto wrapper. */
7329 driver::maybe_putenv_COLLECT_LTO_WRAPPER () const
7331 char *lto_wrapper_file
;
7334 lto_wrapper_file
= NULL
;
7336 lto_wrapper_file
= find_a_file (&exec_prefixes
, "lto-wrapper",
7338 if (lto_wrapper_file
)
7340 lto_wrapper_file
= convert_white_space (lto_wrapper_file
);
7341 lto_wrapper_spec
= lto_wrapper_file
;
7342 obstack_init (&collect_obstack
);
7343 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
7344 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
7345 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
7346 strlen (lto_wrapper_spec
) + 1);
7347 xputenv (XOBFINISH (&collect_obstack
, char *));
7352 /* Set up to remember the names of offload targets. */
7355 driver::maybe_putenv_OFFLOAD_TARGETS () const
7357 const char *targets
= offload_targets
;
7359 /* If no targets specified by -foffload, use all available targets. */
7361 targets
= OFFLOAD_TARGETS
;
7363 if (strlen (targets
) > 0)
7365 obstack_grow (&collect_obstack
, "OFFLOAD_TARGET_NAMES=",
7366 sizeof ("OFFLOAD_TARGET_NAMES=") - 1);
7367 obstack_grow (&collect_obstack
, targets
,
7368 strlen (targets
) + 1);
7369 xputenv (XOBFINISH (&collect_obstack
, char *));
7372 free (offload_targets
);
7375 /* Reject switches that no pass was interested in. */
7378 driver::handle_unrecognized_options () const
7380 for (size_t i
= 0; (int) i
< n_switches
; i
++)
7381 if (! switches
[i
].validated
)
7382 error ("unrecognized command line option %<-%s%>", switches
[i
].part1
);
7385 /* Handle the various -print-* options, returning 0 if the driver
7386 should exit, or nonzero if the driver should continue. */
7389 driver::maybe_print_and_exit () const
7391 if (print_search_dirs
)
7393 printf (_("install: %s%s\n"),
7394 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
7395 gcc_exec_prefix
? "" : machine_suffix
);
7396 printf (_("programs: %s\n"),
7397 build_search_list (&exec_prefixes
, "", false, false));
7398 printf (_("libraries: %s\n"),
7399 build_search_list (&startfile_prefixes
, "", false, true));
7403 if (print_file_name
)
7405 printf ("%s\n", find_file (print_file_name
));
7409 if (print_prog_name
)
7411 if (use_ld
!= NULL
&& ! strcmp (print_prog_name
, "ld"))
7413 /* Append USE_LD to to the default linker. */
7414 #ifdef DEFAULT_LINKER
7416 # ifdef HAVE_HOST_EXECUTABLE_SUFFIX
7417 int len
= (sizeof (DEFAULT_LINKER
)
7418 - sizeof (HOST_EXECUTABLE_SUFFIX
));
7422 char *default_linker
= xstrdup (DEFAULT_LINKER
);
7423 /* Strip HOST_EXECUTABLE_SUFFIX if DEFAULT_LINKER contains
7424 HOST_EXECUTABLE_SUFFIX. */
7425 if (! strcmp (&default_linker
[len
], HOST_EXECUTABLE_SUFFIX
))
7427 default_linker
[len
] = '\0';
7428 ld
= concat (default_linker
, use_ld
,
7429 HOST_EXECUTABLE_SUFFIX
, NULL
);
7434 ld
= concat (DEFAULT_LINKER
, use_ld
, NULL
);
7435 if (access (ld
, X_OK
) == 0)
7437 printf ("%s\n", ld
);
7441 print_prog_name
= concat (print_prog_name
, use_ld
, NULL
);
7443 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
7444 printf ("%s\n", (newname
? newname
: print_prog_name
));
7448 if (print_multi_lib
)
7450 print_multilib_info ();
7454 if (print_multi_directory
)
7456 if (multilib_dir
== NULL
)
7459 printf ("%s\n", multilib_dir
);
7463 if (print_multiarch
)
7465 if (multiarch_dir
== NULL
)
7468 printf ("%s\n", multiarch_dir
);
7474 if (target_system_root
)
7476 if (target_sysroot_suffix
)
7477 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
7479 printf ("%s\n", target_system_root
);
7484 if (print_multi_os_directory
)
7486 if (multilib_os_dir
== NULL
)
7489 printf ("%s\n", multilib_os_dir
);
7493 if (print_sysroot_headers_suffix
)
7495 if (*sysroot_hdrs_suffix_spec
)
7497 printf("%s\n", (target_sysroot_hdrs_suffix
7498 ? target_sysroot_hdrs_suffix
7503 /* The error status indicates that only one set of fixed
7504 headers should be built. */
7505 fatal_error ("not configured with sysroot headers suffix");
7508 if (print_help_list
)
7514 printf (_("\nFor bug reporting instructions, please see:\n"));
7515 printf ("%s.\n", bug_report_url
);
7520 /* We do not exit here. Instead we have created a fake input file
7521 called 'help-dummy' which needs to be compiled, and we pass this
7522 on the various sub-processes, along with the --help switch.
7523 Ensure their output appears after ours. */
7524 fputc ('\n', stdout
);
7530 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
7532 printf ("Copyright %s 2014 Free Software Foundation, Inc.\n",
7534 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
7535 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
7540 /* We do not exit here. We use the same mechanism of --help to print
7541 the version of the sub-processes. */
7542 fputc ('\n', stdout
);
7548 print_configuration (stderr
);
7556 /* Figure out what to do with each input file.
7557 Return true if we need to exit early from "main", false otherwise. */
7560 driver::prepare_infiles ()
7563 int lang_n_infiles
= 0;
7565 if (n_infiles
== added_libraries
)
7566 fatal_error ("no input files");
7569 /* Early exit needed from main. */
7572 /* Make a place to record the compiler output file names
7573 that correspond to the input files. */
7576 i
+= lang_specific_extra_outfiles
;
7577 outfiles
= XCNEWVEC (const char *, i
);
7579 /* Record which files were specified explicitly as link input. */
7581 explicit_link_files
= XCNEWVEC (char, n_infiles
);
7583 combine_inputs
= have_o
|| flag_wpa
;
7585 for (i
= 0; (int) i
< n_infiles
; i
++)
7587 const char *name
= infiles
[i
].name
;
7588 struct compiler
*compiler
= lookup_compiler (name
,
7590 infiles
[i
].language
);
7592 if (compiler
&& !(compiler
->combinable
))
7593 combine_inputs
= false;
7595 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
7596 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
7597 infiles
[i
].incompiler
= compiler
;
7601 input_file_compiler
= compiler
;
7602 infiles
[i
].incompiler
= compiler
;
7606 /* Since there is no compiler for this input file, assume it is a
7608 explicit_link_files
[i
] = 1;
7609 infiles
[i
].incompiler
= NULL
;
7611 infiles
[i
].compiled
= false;
7612 infiles
[i
].preprocessed
= false;
7615 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
7616 fatal_error ("cannot specify -o with -c, -S or -E with multiple files");
7618 /* No early exit needed from main; we can continue. */
7622 /* Run the spec machinery on each input file. */
7625 driver::do_spec_on_infiles () const
7629 for (i
= 0; (int) i
< n_infiles
; i
++)
7631 int this_file_error
= 0;
7633 /* Tell do_spec what to substitute for %i. */
7635 input_file_number
= i
;
7636 set_input (infiles
[i
].name
);
7638 if (infiles
[i
].compiled
)
7641 /* Use the same thing in %o, unless cp->spec says otherwise. */
7643 outfiles
[i
] = gcc_input_filename
;
7645 /* Figure out which compiler from the file's suffix. */
7648 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
7649 infiles
[i
].language
);
7651 if (input_file_compiler
)
7653 /* Ok, we found an applicable compiler. Run its spec. */
7655 if (input_file_compiler
->spec
[0] == '#')
7657 error ("%s: %s compiler not installed on this system",
7658 gcc_input_filename
, &input_file_compiler
->spec
[1]);
7659 this_file_error
= 1;
7667 free (debug_check_temp_file
[0]);
7668 debug_check_temp_file
[0] = NULL
;
7670 free (debug_check_temp_file
[1]);
7671 debug_check_temp_file
[1] = NULL
;
7674 value
= do_spec (input_file_compiler
->spec
);
7675 infiles
[i
].compiled
= true;
7677 this_file_error
= 1;
7678 else if (compare_debug
&& debug_check_temp_file
[0])
7681 inform (0, "recompiling with -fcompare-debug");
7683 compare_debug
= -compare_debug
;
7684 n_switches
= n_switches_debug_check
[1];
7685 n_switches_alloc
= n_switches_alloc_debug_check
[1];
7686 switches
= switches_debug_check
[1];
7688 value
= do_spec (input_file_compiler
->spec
);
7690 compare_debug
= -compare_debug
;
7691 n_switches
= n_switches_debug_check
[0];
7692 n_switches_alloc
= n_switches_alloc_debug_check
[0];
7693 switches
= switches_debug_check
[0];
7697 error ("during -fcompare-debug recompilation");
7698 this_file_error
= 1;
7701 gcc_assert (debug_check_temp_file
[1]
7702 && filename_cmp (debug_check_temp_file
[0],
7703 debug_check_temp_file
[1]));
7706 inform (0, "comparing final insns dumps");
7708 if (compare_files (debug_check_temp_file
))
7709 this_file_error
= 1;
7714 free (debug_check_temp_file
[0]);
7715 debug_check_temp_file
[0] = NULL
;
7717 free (debug_check_temp_file
[1]);
7718 debug_check_temp_file
[1] = NULL
;
7723 /* If this file's name does not contain a recognized suffix,
7724 record it as explicit linker input. */
7727 explicit_link_files
[i
] = 1;
7729 /* Clear the delete-on-failure queue, deleting the files in it
7730 if this compilation failed. */
7732 if (this_file_error
)
7734 delete_failure_queue ();
7737 /* If this compilation succeeded, don't delete those files later. */
7738 clear_failure_queue ();
7741 /* Reset the input file name to the first compile/object file name, for use
7742 with %b in LINK_SPEC. We use the first input file that we can find
7743 a compiler to compile it instead of using infiles.language since for
7744 languages other than C we use aliases that we then lookup later. */
7749 for (i
= 0; i
< n_infiles
; i
++)
7750 if (infiles
[i
].incompiler
7751 || (infiles
[i
].language
&& infiles
[i
].language
[0] != '*'))
7753 set_input (infiles
[i
].name
);
7760 /* Make sure INPUT_FILE_NUMBER points to first available open
7762 input_file_number
= n_infiles
;
7763 if (lang_specific_pre_link ())
7768 /* If we have to run the linker, do it now. */
7771 driver::maybe_run_linker (const char *argv0
) const
7774 int linker_was_run
= 0;
7775 int num_linker_inputs
;
7777 /* Determine if there are any linker input files. */
7778 num_linker_inputs
= 0;
7779 for (i
= 0; (int) i
< n_infiles
; i
++)
7780 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
7781 num_linker_inputs
++;
7783 /* Run ld to link all the compiler output files. */
7785 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
7787 int tmp
= execution_count
;
7791 #if HAVE_LTO_PLUGIN > 0
7792 #if HAVE_LTO_PLUGIN == 2
7793 const char *fno_use_linker_plugin
= "fno-use-linker-plugin";
7795 const char *fuse_linker_plugin
= "fuse-linker-plugin";
7799 /* We'll use ld if we can't find collect2. */
7800 if (! strcmp (linker_name_spec
, "collect2"))
7802 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
7804 linker_name_spec
= "ld";
7807 #if HAVE_LTO_PLUGIN > 0
7808 #if HAVE_LTO_PLUGIN == 2
7809 if (!switch_matches (fno_use_linker_plugin
,
7810 fno_use_linker_plugin
7811 + strlen (fno_use_linker_plugin
), 0))
7813 if (switch_matches (fuse_linker_plugin
,
7815 + strlen (fuse_linker_plugin
), 0))
7818 char *temp_spec
= find_a_file (&exec_prefixes
,
7819 LTOPLUGINSONAME
, R_OK
,
7822 fatal_error ("-fuse-linker-plugin, but %s not found",
7824 linker_plugin_file_spec
= convert_white_space (temp_spec
);
7827 lto_gcc_spec
= argv0
;
7830 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
7832 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
7833 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
7835 if (print_subprocess_help
== 1)
7837 printf (_("\nLinker options\n==============\n\n"));
7838 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
7839 " to the linker.\n\n"));
7842 int value
= do_spec (link_command_spec
);
7845 linker_was_run
= (tmp
!= execution_count
);
7848 /* If options said don't run linker,
7849 complain about input files to be given to the linker. */
7851 if (! linker_was_run
&& !seen_error ())
7852 for (i
= 0; (int) i
< n_infiles
; i
++)
7853 if (explicit_link_files
[i
]
7854 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
7855 warning (0, "%s: linker input file unused because linking not done",
7859 /* The end of "main". */
7862 driver::final_actions () const
7864 /* Delete some or all of the temporary files we made. */
7867 delete_failure_queue ();
7868 delete_temp_files ();
7870 if (print_help_list
)
7872 printf (("\nFor bug reporting instructions, please see:\n"));
7873 printf ("%s\n", bug_report_url
);
7877 /* Determine what the exit code of the driver should be. */
7880 driver::get_exit_code () const
7882 return (signal_count
!= 0 ? 2
7883 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
7887 /* Find the proper compilation spec for the file name NAME,
7888 whose length is LENGTH. LANGUAGE is the specified language,
7889 or 0 if this file is to be passed to the linker. */
7891 static struct compiler
*
7892 lookup_compiler (const char *name
, size_t length
, const char *language
)
7894 struct compiler
*cp
;
7896 /* If this was specified by the user to be a linker input, indicate that. */
7897 if (language
!= 0 && language
[0] == '*')
7900 /* Otherwise, look for the language, if one is spec'd. */
7903 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7904 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
7907 error ("language %s not recognized", language
);
7911 /* Look for a suffix. */
7912 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7914 if (/* The suffix `-' matches only the file name `-'. */
7915 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7916 || (strlen (cp
->suffix
) < length
7917 /* See if the suffix matches the end of NAME. */
7918 && !strcmp (cp
->suffix
,
7919 name
+ length
- strlen (cp
->suffix
))
7924 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
7925 /* Look again, but case-insensitively this time. */
7927 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7929 if (/* The suffix `-' matches only the file name `-'. */
7930 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7931 || (strlen (cp
->suffix
) < length
7932 /* See if the suffix matches the end of NAME. */
7933 && ((!strcmp (cp
->suffix
,
7934 name
+ length
- strlen (cp
->suffix
))
7935 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
7936 && !strcasecmp (cp
->suffix
,
7937 name
+ length
- strlen (cp
->suffix
)))
7943 if (cp
>= compilers
)
7945 if (cp
->spec
[0] != '@')
7946 /* A non-alias entry: return it. */
7949 /* An alias entry maps a suffix to a language.
7950 Search for the language; pass 0 for NAME and LENGTH
7951 to avoid infinite recursion if language not found. */
7952 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
7958 save_string (const char *s
, int len
)
7960 char *result
= XNEWVEC (char, len
+ 1);
7962 memcpy (result
, s
, len
);
7968 pfatal_with_name (const char *name
)
7970 perror_with_name (name
);
7971 delete_temp_files ();
7976 perror_with_name (const char *name
)
7978 error ("%s: %m", name
);
7982 validate_switches_from_spec (const char *spec
, bool user
)
7984 const char *p
= spec
;
7987 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
7988 /* We have a switch spec. */
7989 p
= validate_switches (p
+ 1, user
);
7993 validate_all_switches (void)
7995 struct compiler
*comp
;
7996 struct spec_list
*spec
;
7998 for (comp
= compilers
; comp
->spec
; comp
++)
7999 validate_switches_from_spec (comp
->spec
, false);
8001 /* Look through the linked list of specs read from the specs file. */
8002 for (spec
= specs
; spec
; spec
= spec
->next
)
8003 validate_switches_from_spec (*spec
->ptr_spec
, spec
->user_p
);
8005 validate_switches_from_spec (link_command_spec
, false);
8008 /* Look at the switch-name that comes after START
8009 and mark as valid all supplied switches that match it. */
8012 validate_switches (const char *start
, bool user_spec
)
8014 const char *p
= start
;
8018 bool suffix
= false;
8019 bool starred
= false;
8021 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
8030 if (*p
== '.' || *p
== ',')
8034 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
8035 || *p
== ',' || *p
== '.' || *p
== '@')
8040 starred
= true, p
++;
8046 /* Mark all matching switches as valid. */
8047 for (i
= 0; i
< n_switches
; i
++)
8048 if (!strncmp (switches
[i
].part1
, atom
, len
)
8049 && (starred
|| switches
[i
].part1
[len
] == '\0')
8050 && (switches
[i
].known
|| user_spec
))
8051 switches
[i
].validated
= true;
8055 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
8058 if (*p
&& p
[-1] == ':')
8060 while (*p
&& *p
!= ';' && *p
!= '}')
8065 if (*p
== '{' || *p
== '<')
8066 p
= validate_switches (p
+1, user_spec
);
8067 else if (p
[0] == 'W' && p
[1] == '{')
8068 p
= validate_switches (p
+2, user_spec
);
8075 if (*p
&& p
[-1] == ';')
8089 static struct mdswitchstr
*mdswitches
;
8090 static int n_mdswitches
;
8092 /* Check whether a particular argument was used. The first time we
8093 canonicalize the switches to keep only the ones we care about. */
8096 used_arg (const char *p
, int len
)
8101 const char *replace
;
8106 static struct mswitchstr
*mswitches
;
8107 static int n_mswitches
;
8112 struct mswitchstr
*matches
;
8116 /* Break multilib_matches into the component strings of string
8117 and replacement string. */
8118 for (q
= multilib_matches
; *q
!= '\0'; q
++)
8123 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
8125 q
= multilib_matches
;
8134 fatal_error ("multilib spec %qs is invalid",
8139 matches
[i
].len
= q
- matches
[i
].str
;
8141 matches
[i
].replace
= ++q
;
8142 while (*q
!= ';' && *q
!= '\0')
8145 goto invalid_matches
;
8148 matches
[i
].rep_len
= q
- matches
[i
].replace
;
8154 /* Now build a list of the replacement string for switches that we care
8155 about. Make sure we allocate at least one entry. This prevents
8156 xmalloc from calling fatal, and prevents us from re-executing this
8159 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
8160 for (i
= 0; i
< n_switches
; i
++)
8161 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
8163 int xlen
= strlen (switches
[i
].part1
);
8164 for (j
= 0; j
< cnt
; j
++)
8165 if (xlen
== matches
[j
].len
8166 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
8168 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
8169 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
8170 mswitches
[n_mswitches
].replace
= (char *) 0;
8171 mswitches
[n_mswitches
].rep_len
= 0;
8177 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
8178 on the command line nor any options mutually incompatible with
8180 for (i
= 0; i
< n_mdswitches
; i
++)
8184 for (q
= multilib_options
; *q
!= '\0'; *q
&& q
++)
8190 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
8191 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
8193 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8200 if (*q
!= ' ' && *q
!= '\0')
8202 while (*r
!= ' ' && *r
!= '\0')
8205 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8208 if (used_arg (r
, q
- r
))
8213 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
8214 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
8215 mswitches
[n_mswitches
].replace
= (char *) 0;
8216 mswitches
[n_mswitches
].rep_len
= 0;
8229 for (i
= 0; i
< n_mswitches
; i
++)
8230 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
8237 default_arg (const char *p
, int len
)
8241 for (i
= 0; i
< n_mdswitches
; i
++)
8242 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
8248 /* Work out the subdirectory to use based on the options. The format of
8249 multilib_select is a list of elements. Each element is a subdirectory
8250 name followed by a list of options followed by a semicolon. The format
8251 of multilib_exclusions is the same, but without the preceding
8252 directory. First gcc will check the exclusions, if none of the options
8253 beginning with an exclamation point are present, and all of the other
8254 options are present, then we will ignore this completely. Passing
8255 that, gcc will consider each multilib_select in turn using the same
8256 rules for matching the options. If a match is found, that subdirectory
8258 A subdirectory name is optionally followed by a colon and the corresponding
8262 set_multilib_dir (void)
8265 unsigned int this_path_len
;
8266 const char *this_path
, *this_arg
;
8267 const char *start
, *end
;
8269 int ok
, ndfltok
, first
;
8272 start
= multilib_defaults
;
8273 while (*start
== ' ' || *start
== '\t')
8275 while (*start
!= '\0')
8278 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
8280 while (*start
== ' ' || *start
== '\t')
8288 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
8289 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
8291 while (*start
== ' ' || *start
== '\t')
8297 for (end
= start
+ 1;
8298 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
8301 obstack_grow (&multilib_obstack
, start
, end
- start
);
8302 obstack_1grow (&multilib_obstack
, 0);
8303 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
8304 mdswitches
[i
++].len
= end
- start
;
8311 p
= multilib_exclusions
;
8314 /* Ignore newlines. */
8321 /* Check the arguments. */
8328 fatal_error ("multilib exclusions %qs is invalid",
8329 multilib_exclusions
);
8339 while (*p
!= ' ' && *p
!= ';')
8342 goto invalid_exclusions
;
8346 if (*this_arg
!= '!')
8354 ok
= used_arg (this_arg
, p
- this_arg
);
8369 p
= multilib_select
;
8371 /* Append multilib reuse rules if any. With those rules, we can reuse
8372 one multilib for certain different options sets. */
8373 if (strlen (multilib_reuse
) > 0)
8374 p
= concat (p
, multilib_reuse
, NULL
);
8378 /* Ignore newlines. */
8385 /* Get the initial path. */
8392 fatal_error ("multilib select %qs %qs is invalid",
8393 multilib_select
, multilib_reuse
);
8397 this_path_len
= p
- this_path
;
8399 /* Check the arguments. */
8406 goto invalid_select
;
8415 while (*p
!= ' ' && *p
!= ';')
8418 goto invalid_select
;
8422 if (*this_arg
!= '!')
8430 /* If this is a default argument, we can just ignore it.
8431 This is true even if this_arg begins with '!'. Beginning
8432 with '!' does not mean that this argument is necessarily
8433 inappropriate for this library: it merely means that
8434 there is a more specific library which uses this
8435 argument. If this argument is a default, we need not
8436 consider that more specific library. */
8437 ok
= used_arg (this_arg
, p
- this_arg
);
8444 if (default_arg (this_arg
, p
- this_arg
))
8453 if (this_path_len
!= 1
8454 || this_path
[0] != '.')
8456 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
8459 strncpy (new_multilib_dir
, this_path
, this_path_len
);
8460 new_multilib_dir
[this_path_len
] = '\0';
8461 q
= strchr (new_multilib_dir
, ':');
8464 multilib_dir
= new_multilib_dir
;
8471 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
8473 while (q
< end
&& *q
!= ':')
8477 const char *q2
= q
+ 1, *ml_end
= end
;
8478 char *new_multilib_os_dir
;
8480 while (q2
< end
&& *q2
!= ':')
8484 if (ml_end
- q
== 1)
8485 multilib_os_dir
= xstrdup (".");
8488 new_multilib_os_dir
= XNEWVEC (char, ml_end
- q
);
8489 memcpy (new_multilib_os_dir
, q
+ 1, ml_end
- q
- 1);
8490 new_multilib_os_dir
[ml_end
- q
- 1] = '\0';
8491 multilib_os_dir
= new_multilib_os_dir
;
8494 if (q2
< end
&& *q2
== ':')
8496 char *new_multiarch_dir
= XNEWVEC (char, end
- q2
);
8497 memcpy (new_multiarch_dir
, q2
+ 1, end
- q2
- 1);
8498 new_multiarch_dir
[end
- q2
- 1] = '\0';
8499 multiarch_dir
= new_multiarch_dir
;
8508 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
8509 && strcmp (multilib_os_dir
, ".") == 0)
8511 free (CONST_CAST (char *, multilib_os_dir
));
8512 multilib_os_dir
= NULL
;
8514 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
8515 multilib_os_dir
= multilib_dir
;
8518 /* Print out the multiple library subdirectory selection
8519 information. This prints out a series of lines. Each line looks
8520 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
8521 required. Only the desired options are printed out, the negative
8522 matches. The options are print without a leading dash. There are
8523 no spaces to make it easy to use the information in the shell.
8524 Each subdirectory is printed only once. This assumes the ordering
8525 generated by the genmultilib script. Also, we leave out ones that match
8529 print_multilib_info (void)
8531 const char *p
= multilib_select
;
8532 const char *last_path
= 0, *this_path
;
8534 unsigned int last_path_len
= 0;
8539 /* Ignore newlines. */
8546 /* Get the initial path. */
8553 fatal_error ("multilib select %qs is invalid", multilib_select
);
8559 /* When --disable-multilib was used but target defines
8560 MULTILIB_OSDIRNAMES, entries starting with .: (and not starting
8561 with .:: for multiarch configurations) are there just to find
8562 multilib_os_dir, so skip them from output. */
8563 if (this_path
[0] == '.' && this_path
[1] == ':' && this_path
[2] != ':')
8566 /* Check for matches with the multilib_exclusions. We don't bother
8567 with the '!' in either list. If any of the exclusion rules match
8568 all of its options with the select rule, we skip it. */
8570 const char *e
= multilib_exclusions
;
8571 const char *this_arg
;
8576 /* Ignore newlines. */
8583 /* Check the arguments. */
8592 fatal_error ("multilib exclusion %qs is invalid",
8593 multilib_exclusions
);
8604 while (*e
!= ' ' && *e
!= ';')
8607 goto invalid_exclusion
;
8615 int len
= e
- this_arg
;
8618 goto invalid_select
;
8622 while (*q
!= ' ' && *q
!= ';')
8625 goto invalid_select
;
8629 if (! strncmp (arg
, this_arg
,
8630 (len
< q
- arg
) ? q
- arg
: len
)
8631 || default_arg (this_arg
, e
- this_arg
))
8661 /* If this is a duplicate, skip it. */
8662 skip
= (last_path
!= 0
8663 && (unsigned int) (p
- this_path
) == last_path_len
8664 && ! filename_ncmp (last_path
, this_path
, last_path_len
));
8666 last_path
= this_path
;
8667 last_path_len
= p
- this_path
;
8670 /* If this directory requires any default arguments, we can skip
8671 it. We will already have printed a directory identical to
8672 this one which does not require that default argument. */
8683 goto invalid_select
;
8690 while (*q
!= ' ' && *q
!= ';')
8693 goto invalid_select
;
8698 && default_arg (arg
, q
- arg
))
8713 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
8724 goto invalid_select
;
8732 use_arg
= *p
!= '!';
8737 while (*p
!= ' ' && *p
!= ';')
8740 goto invalid_select
;
8752 /* If there are extra options, print them now. */
8753 if (multilib_extra
&& *multilib_extra
)
8755 int print_at
= TRUE
;
8758 for (q
= multilib_extra
; *q
!= '\0'; q
++)
8779 /* getenv built-in spec function.
8781 Returns the value of the environment variable given by its first
8782 argument, concatenated with the second argument. If the
8783 environment variable is not defined, a fatal error is issued. */
8786 getenv_spec_function (int argc
, const char **argv
)
8796 value
= getenv (argv
[0]);
8798 fatal_error ("environment variable %qs not defined", argv
[0]);
8800 /* We have to escape every character of the environment variable so
8801 they are not interpreted as active spec characters. A
8802 particularly painful case is when we are reading a variable
8803 holding a windows path complete with \ separators. */
8804 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
8805 result
= XNEWVAR (char, len
);
8806 for (ptr
= result
; *value
; ptr
+= 2)
8812 strcpy (ptr
, argv
[1]);
8817 /* if-exists built-in spec function.
8819 Checks to see if the file specified by the absolute pathname in
8820 ARGS exists. Returns that pathname if found.
8822 The usual use for this function is to check for a library file
8823 (whose name has been expanded with %s). */
8826 if_exists_spec_function (int argc
, const char **argv
)
8828 /* Must have only one argument. */
8829 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8835 /* if-exists-else built-in spec function.
8837 This is like if-exists, but takes an additional argument which
8838 is returned if the first argument does not exist. */
8841 if_exists_else_spec_function (int argc
, const char **argv
)
8843 /* Must have exactly two arguments. */
8847 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8853 /* sanitize built-in spec function.
8855 This returns non-NULL, if sanitizing address, thread or
8856 any of the undefined behavior sanitizers. */
8859 sanitize_spec_function (int argc
, const char **argv
)
8864 if (strcmp (argv
[0], "address") == 0)
8865 return (flag_sanitize
& SANITIZE_USER_ADDRESS
) ? "" : NULL
;
8866 if (strcmp (argv
[0], "kernel-address") == 0)
8867 return (flag_sanitize
& SANITIZE_KERNEL_ADDRESS
) ? "" : NULL
;
8868 if (strcmp (argv
[0], "thread") == 0)
8869 return (flag_sanitize
& SANITIZE_THREAD
) ? "" : NULL
;
8870 if (strcmp (argv
[0], "undefined") == 0)
8871 return ((flag_sanitize
& (SANITIZE_UNDEFINED
| SANITIZE_NONDEFAULT
))
8872 && !flag_sanitize_undefined_trap_on_error
) ? "" : NULL
;
8873 if (strcmp (argv
[0], "leak") == 0)
8874 return ((flag_sanitize
8875 & (SANITIZE_ADDRESS
| SANITIZE_LEAK
| SANITIZE_THREAD
))
8876 == SANITIZE_LEAK
) ? "" : NULL
;
8880 /* replace-outfile built-in spec function.
8882 This looks for the first argument in the outfiles array's name and
8883 replaces it with the second argument. */
8886 replace_outfile_spec_function (int argc
, const char **argv
)
8889 /* Must have exactly two arguments. */
8893 for (i
= 0; i
< n_infiles
; i
++)
8895 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
8896 outfiles
[i
] = xstrdup (argv
[1]);
8901 /* remove-outfile built-in spec function.
8903 * This looks for the first argument in the outfiles array's name and
8907 remove_outfile_spec_function (int argc
, const char **argv
)
8910 /* Must have exactly one argument. */
8914 for (i
= 0; i
< n_infiles
; i
++)
8916 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
8922 /* Given two version numbers, compares the two numbers.
8923 A version number must match the regular expression
8924 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
8927 compare_version_strings (const char *v1
, const char *v2
)
8932 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
8933 REG_EXTENDED
| REG_NOSUB
) != 0)
8935 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
8936 if (rresult
== REG_NOMATCH
)
8937 fatal_error ("invalid version number %qs", v1
);
8938 else if (rresult
!= 0)
8940 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
8941 if (rresult
== REG_NOMATCH
)
8942 fatal_error ("invalid version number %qs", v2
);
8943 else if (rresult
!= 0)
8946 return strverscmp (v1
, v2
);
8950 /* version_compare built-in spec function.
8952 This takes an argument of the following form:
8954 <comparison-op> <arg1> [<arg2>] <switch> <result>
8956 and produces "result" if the comparison evaluates to true,
8957 and nothing if it doesn't.
8959 The supported <comparison-op> values are:
8961 >= true if switch is a later (or same) version than arg1
8963 < true if switch is an earlier version than arg1
8965 >< true if switch is arg1 or later, and earlier than arg2
8966 <> true if switch is earlier than arg1 or is arg2 or later
8968 If the switch is not present, the condition is false unless
8969 the first character of the <comparison-op> is '!'.
8972 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
8973 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
8976 version_compare_spec_function (int argc
, const char **argv
)
8980 const char *switch_value
= NULL
;
8985 fatal_error ("too few arguments to %%:version-compare");
8986 if (argv
[0][0] == '\0')
8988 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
8990 if (argc
!= nargs
+ 3)
8991 fatal_error ("too many arguments to %%:version-compare");
8993 switch_len
= strlen (argv
[nargs
+ 1]);
8994 for (i
= 0; i
< n_switches
; i
++)
8995 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
8996 && check_live_switch (i
, switch_len
))
8997 switch_value
= switches
[i
].part1
+ switch_len
;
8999 if (switch_value
== NULL
)
9003 comp1
= compare_version_strings (switch_value
, argv
[1]);
9005 comp2
= compare_version_strings (switch_value
, argv
[2]);
9007 comp2
= -1; /* This value unused. */
9010 switch (argv
[0][0] << 8 | argv
[0][1])
9012 case '>' << 8 | '=':
9013 result
= comp1
>= 0;
9015 case '!' << 8 | '<':
9016 result
= comp1
>= 0 || switch_value
== NULL
;
9021 case '!' << 8 | '>':
9022 result
= comp1
< 0 || switch_value
== NULL
;
9024 case '>' << 8 | '<':
9025 result
= comp1
>= 0 && comp2
< 0;
9027 case '<' << 8 | '>':
9028 result
= comp1
< 0 || comp2
>= 0;
9032 fatal_error ("unknown operator %qs in %%:version-compare", argv
[0]);
9037 return argv
[nargs
+ 2];
9040 /* %:include builtin spec function. This differs from %include in that it
9041 can be nested inside a spec, and thus be conditionalized. It takes
9042 one argument, the filename, and looks for it in the startfile path.
9043 The result is always NULL, i.e. an empty expansion. */
9046 include_spec_function (int argc
, const char **argv
)
9053 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
9054 read_specs (file
? file
: argv
[0], false, false);
9059 /* %:find-file spec function. This function replaces its argument by
9060 the file found through find_file, that is the -print-file-name gcc
9063 find_file_spec_function (int argc
, const char **argv
)
9070 file
= find_file (argv
[0]);
9075 /* %:find-plugindir spec function. This function replaces its argument
9076 by the -iplugindir=<dir> option. `dir' is found through find_file, that
9077 is the -print-file-name gcc program option. */
9079 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
9086 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
9091 /* %:print-asm-header spec function. Print a banner to say that the
9092 following output is from the assembler. */
9095 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
9096 const char **argv ATTRIBUTE_UNUSED
)
9098 printf (_("Assembler options\n=================\n\n"));
9099 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
9104 /* Get a random number for -frandom-seed */
9106 static unsigned HOST_WIDE_INT
9107 get_random_number (void)
9109 unsigned HOST_WIDE_INT ret
= 0;
9112 fd
= open ("/dev/urandom", O_RDONLY
);
9115 read (fd
, &ret
, sizeof (HOST_WIDE_INT
));
9121 /* Get some more or less random data. */
9122 #ifdef HAVE_GETTIMEOFDAY
9126 gettimeofday (&tv
, NULL
);
9127 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
9131 time_t now
= time (NULL
);
9133 if (now
!= (time_t)-1)
9134 ret
= (unsigned) now
;
9138 return ret
^ getpid ();
9141 /* %:compare-debug-dump-opt spec function. Save the last argument,
9142 expected to be the last -fdump-final-insns option, or generate a
9146 compare_debug_dump_opt_spec_function (int arg
,
9147 const char **argv ATTRIBUTE_UNUSED
)
9152 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
9155 fatal_error ("too many arguments to %%:compare-debug-dump-opt");
9157 do_spec_2 ("%{fdump-final-insns=*:%*}");
9158 do_spec_1 (" ", 0, NULL
);
9160 if (argbuf
.length () > 0
9161 && strcmp (argv
[argbuf
.length () - 1], "."))
9166 name
= xstrdup (argv
[argbuf
.length () - 1]);
9171 const char *ext
= NULL
;
9173 if (argbuf
.length () > 0)
9175 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
9178 else if (!compare_debug
)
9181 do_spec_2 ("%g.gkd");
9183 do_spec_1 (" ", 0, NULL
);
9185 gcc_assert (argbuf
.length () > 0);
9187 name
= concat (argbuf
.last (), ext
, NULL
);
9189 ret
= concat ("-fdump-final-insns=", name
, NULL
);
9192 which
= compare_debug
< 0;
9193 debug_check_temp_file
[which
] = name
;
9197 unsigned HOST_WIDE_INT value
= get_random_number ();
9199 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
9205 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
9216 static const char *debug_auxbase_opt
;
9218 /* %:compare-debug-self-opt spec function. Expands to the options
9219 that are to be passed in the second compilation of
9223 compare_debug_self_opt_spec_function (int arg
,
9224 const char **argv ATTRIBUTE_UNUSED
)
9227 fatal_error ("too many arguments to %%:compare-debug-self-opt");
9229 if (compare_debug
>= 0)
9232 do_spec_2 ("%{c|S:%{o*:%*}}");
9233 do_spec_1 (" ", 0, NULL
);
9235 if (argbuf
.length () > 0)
9236 debug_auxbase_opt
= concat ("-auxbase-strip ",
9240 debug_auxbase_opt
= NULL
;
9243 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
9244 %<fdump-final-insns=* -w -S -o %j \
9245 %{!fcompare-debug-second:-fcompare-debug-second} \
9246 ", compare_debug_opt
, NULL
);
9249 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
9250 options that are to be passed in the second compilation of
9251 compare-debug. It expects, as an argument, the basename of the
9252 current input file name, with the .gk suffix appended to it. */
9255 compare_debug_auxbase_opt_spec_function (int arg
,
9262 fatal_error ("too few arguments to %%:compare-debug-auxbase-opt");
9265 fatal_error ("too many arguments to %%:compare-debug-auxbase-opt");
9267 if (compare_debug
>= 0)
9270 len
= strlen (argv
[0]);
9271 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
9272 fatal_error ("argument to %%:compare-debug-auxbase-opt "
9273 "does not end in .gk");
9275 if (debug_auxbase_opt
)
9276 return debug_auxbase_opt
;
9278 #define OPT "-auxbase "
9281 name
= (char*) xmalloc (sizeof (OPT
) + len
);
9282 memcpy (name
, OPT
, sizeof (OPT
) - 1);
9283 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
9284 name
[sizeof (OPT
) - 1 + len
] = '\0';
9291 /* %:pass-through-libs spec function. Finds all -l options and input
9292 file names in the lib spec passed to it, and makes a list of them
9293 prepended with the plugin option to cause them to be passed through
9294 to the final link after all the new object files have been added. */
9297 pass_through_libs_spec_func (int argc
, const char **argv
)
9299 char *prepended
= xstrdup (" ");
9301 /* Shlemiel the painter's algorithm. Innately horrible, but at least
9302 we know that there will never be more than a handful of strings to
9303 concat, and it's only once per run, so it's not worth optimising. */
9304 for (n
= 0; n
< argc
; n
++)
9306 char *old
= prepended
;
9307 /* Anything that isn't an option is a full path to an output
9308 file; pass it through if it ends in '.a'. Among options,
9310 if (argv
[n
][0] == '-' && argv
[n
][1] == 'l')
9312 const char *lopt
= argv
[n
] + 2;
9313 /* Handle both joined and non-joined -l options. If for any
9314 reason there's a trailing -l with no joined or following
9315 arg just discard it. */
9316 if (!*lopt
&& ++n
>= argc
)
9320 prepended
= concat (prepended
, "-plugin-opt=-pass-through=-l",
9323 else if (!strcmp (".a", argv
[n
] + strlen (argv
[n
]) - 2))
9325 prepended
= concat (prepended
, "-plugin-opt=-pass-through=",
9326 argv
[n
], " ", NULL
);
9328 if (prepended
!= old
)
9334 /* %:replace-extension spec function. Replaces the extension of the
9335 first argument with the second argument. */
9338 replace_extension_spec_func (int argc
, const char **argv
)
9346 fatal_error ("too few arguments to %%:replace-extension");
9348 name
= xstrdup (argv
[0]);
9350 for (i
= strlen (name
) - 1; i
>= 0; i
--)
9351 if (IS_DIR_SEPARATOR (name
[i
]))
9354 p
= strrchr (name
+ i
+ 1, '.');
9358 result
= concat (name
, argv
[1], NULL
);
9364 /* Insert backslash before spaces in ORIG (usually a file path), to
9365 avoid being broken by spec parser.
9367 This function is needed as do_spec_1 treats white space (' ' and '\t')
9368 as the end of an argument. But in case of -plugin /usr/gcc install/xxx.so,
9369 the file name should be treated as a single argument rather than being
9370 broken into multiple. Solution is to insert '\\' before the space in a
9373 This function converts and only converts all occurrence of ' '
9374 to '\\' + ' ' and '\t' to '\\' + '\t'. For example:
9378 "a\\ b" -> "a\\\\ b"
9380 orig: input null-terminating string that was allocated by xalloc. The
9381 memory it points to might be freed in this function. Behavior undefined
9382 if ORIG wasn't xalloced or was freed already at entry.
9384 Return: ORIG if no conversion needed. Otherwise a newly allocated string
9385 that was converted from ORIG. */
9388 convert_white_space (char *orig
)
9390 int len
, number_of_space
= 0;
9392 for (len
= 0; orig
[len
]; len
++)
9393 if (orig
[len
] == ' ' || orig
[len
] == '\t') number_of_space
++;
9395 if (number_of_space
)
9397 char *new_spec
= (char *) xmalloc (len
+ number_of_space
+ 1);
9399 for (j
= 0, k
= 0; j
<= len
; j
++, k
++)
9401 if (orig
[j
] == ' ' || orig
[j
] == '\t')
9402 new_spec
[k
++] = '\\';
9403 new_spec
[k
] = orig
[j
];