1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987-2015 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|fstack-protector-all" \
732 "|fstack-protector-strong|fstack-protector-explicit:}"
734 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
735 "|fstack-protector-strong|fstack-protector-explicit" \
736 ":-lssp_nonshared -lssp}"
740 #ifndef LINK_PIE_SPEC
742 #define LINK_PIE_SPEC "%{pie:-pie} "
744 #define LINK_PIE_SPEC "%{pie:} "
748 #ifndef LINK_BUILDID_SPEC
749 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
750 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
754 /* Conditional to test whether the LTO plugin is used or not.
755 FIXME: For slim LTO we will need to enable plugin unconditionally. This
756 still cause problems with PLUGIN_LD != LD and when plugin is built but
757 not useable. For GCC 4.6 we don't support slim LTO and thus we can enable
758 plugin only when LTO is enabled. We still honor explicit
759 -fuse-linker-plugin if the linker used understands -plugin. */
761 /* The linker has some plugin support. */
762 #if HAVE_LTO_PLUGIN > 0
763 /* The linker used has full plugin support, use LTO plugin by default. */
764 #if HAVE_LTO_PLUGIN == 2
765 #define PLUGIN_COND "!fno-use-linker-plugin:%{!fno-lto"
766 #define PLUGIN_COND_CLOSE "}"
768 /* The linker used has limited plugin support, use LTO plugin with explicit
769 -fuse-linker-plugin. */
770 #define PLUGIN_COND "fuse-linker-plugin"
771 #define PLUGIN_COND_CLOSE ""
773 #define LINK_PLUGIN_SPEC \
775 -plugin %(linker_plugin_file) \
776 -plugin-opt=%(lto_wrapper) \
777 -plugin-opt=-fresolution=%u.res \
778 %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \
781 /* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */
782 #define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\
783 %e-fuse-linker-plugin is not supported in this configuration}"
786 /* Linker command line options for -fsanitize= early on the command line. */
787 #ifndef SANITIZER_EARLY_SPEC
788 #define SANITIZER_EARLY_SPEC "\
789 %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_EARLY_SPEC "} \
790 %{%:sanitize(thread):" LIBTSAN_EARLY_SPEC "} \
791 %{%:sanitize(leak):" LIBLSAN_EARLY_SPEC "}}}"
794 /* Linker command line options for -fsanitize= late on the command line. */
795 #ifndef SANITIZER_SPEC
796 #define SANITIZER_SPEC "\
797 %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_SPEC "\
798 %{static:%ecannot specify -static with -fsanitize=address}}\
799 %{%:sanitize(thread):" LIBTSAN_SPEC "\
800 %{static:%ecannot specify -static with -fsanitize=thread}}\
801 %{%:sanitize(undefined):" LIBUBSAN_SPEC "}\
802 %{%:sanitize(leak):" LIBLSAN_SPEC "}}}"
805 /* This is the spec to use, once the code for creating the vtable
806 verification runtime library, libvtv.so, has been created. Currently
807 the vtable verification runtime functions are in libstdc++, so we use
808 the spec just below this one. */
809 #ifndef VTABLE_VERIFICATION_SPEC
810 #define VTABLE_VERIFICATION_SPEC "\
811 %{!nostdlib:%{fvtable-verify=std: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}\
812 %{fvtable-verify=preinit: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}}"
815 /* -u* was put back because both BSD and SysV seem to support it. */
816 /* %{static:} simply prevents an error message if the target machine
817 doesn't handle -static. */
818 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
819 scripts which exist in user specified directories, or in standard
821 /* We pass any -flto flags on to the linker, which is expected
822 to understand them. In practice, this means it had better be collect2. */
823 /* %{e*} includes -export-dynamic; see comment in common.opt. */
824 #ifndef LINK_COMMAND_SPEC
825 #define LINK_COMMAND_SPEC "\
826 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
829 "%{flto|flto=*:%<fcompare-debug*} \
830 %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \
831 "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
832 "%X %{o*} %{e*} %{N} %{n} %{r}\
833 %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}} " VTABLE_VERIFICATION_SPEC " \
834 %{static:} %{L*} %(mfwrap) %(link_libgcc) " SANITIZER_EARLY_SPEC " %o\
835 %{fopenacc|fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}\
836 %{fcilkplus:%:include(libcilkrts.spec)%(link_cilkrts)}\
837 %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
838 %(mflib) " STACK_SPLIT_SPEC "\
839 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \
840 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
841 %{!nostdlib:%{!nostartfiles:%E}} %{T*} }}}}}}"
844 #ifndef LINK_LIBGCC_SPEC
845 /* Generate -L options for startfile prefix list. */
846 # define LINK_LIBGCC_SPEC "%D"
849 #ifndef STARTFILE_PREFIX_SPEC
850 # define STARTFILE_PREFIX_SPEC ""
854 # define SYSROOT_SPEC "--sysroot=%R"
857 #ifndef SYSROOT_SUFFIX_SPEC
858 # define SYSROOT_SUFFIX_SPEC ""
861 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
862 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
865 static const char *asm_debug
= ASM_DEBUG_SPEC
;
866 static const char *cpp_spec
= CPP_SPEC
;
867 static const char *cc1_spec
= CC1_SPEC
;
868 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
869 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
870 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
871 static const char *asm_spec
= ASM_SPEC
;
872 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
873 static const char *link_spec
= LINK_SPEC
;
874 static const char *lib_spec
= LIB_SPEC
;
875 static const char *link_gomp_spec
= "";
876 static const char *libgcc_spec
= LIBGCC_SPEC
;
877 static const char *endfile_spec
= ENDFILE_SPEC
;
878 static const char *startfile_spec
= STARTFILE_SPEC
;
879 static const char *linker_name_spec
= LINKER_NAME
;
880 static const char *linker_plugin_file_spec
= "";
881 static const char *lto_wrapper_spec
= "";
882 static const char *lto_gcc_spec
= "";
883 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
884 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
885 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
886 static const char *sysroot_spec
= SYSROOT_SPEC
;
887 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
888 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
889 static const char *self_spec
= "";
891 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
892 There should be no need to override these in target dependent files,
893 but we need to copy them to the specs file so that newer versions
894 of the GCC driver can correctly drive older tool chains with the
895 appropriate -B options. */
897 /* When cpplib handles traditional preprocessing, get rid of this, and
898 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
899 that we default the front end language better. */
900 static const char *trad_capable_cpp
=
901 "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}";
903 /* We don't wrap .d files in %W{} since a missing .d file, and
904 therefore no dependency entry, confuses make into thinking a .o
905 file that happens to exist is up-to-date. */
906 static const char *cpp_unique_options
=
907 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
908 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
909 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
910 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
911 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
912 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
913 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
914 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
917 /* This contains cpp options which are common with cc1_options and are passed
918 only when preprocessing only to avoid duplication. We pass the cc1 spec
919 options to the preprocessor so that it the cc1 spec may manipulate
920 options used to set target flags. Those special target flags settings may
921 in turn cause preprocessor symbols to be defined specially. */
922 static const char *cpp_options
=
923 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
924 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
925 %{undef} %{save-temps*:-fpch-preprocess}";
927 /* This contains cpp options which are not passed when the preprocessor
928 output will be used by another program. */
929 static const char *cpp_debug_options
= "%{d*}";
931 /* NB: This is shared amongst all front-ends, except for Ada. */
932 static const char *cc1_options
=
933 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
934 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
935 %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\
936 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
937 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
938 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
939 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
940 %{Qn:-fno-ident} %{Qy:} %{-help:--help}\
941 %{-target-help:--target-help}\
942 %{-version:--version}\
943 %{-help=*:--help=%*}\
944 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
945 %{fsyntax-only:-o %j} %{-param*}\
946 %{coverage:-fprofile-arcs -ftest-coverage}";
948 static const char *asm_options
=
949 "%{-target-help:%:print-asm-header()} "
951 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
952 to the assembler equivalents. */
953 "%{v} %{w:-W} %{I*} "
955 ASM_COMPRESS_DEBUG_SPEC
956 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
958 static const char *invoke_as
=
959 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
961 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
962 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
966 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
967 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
971 /* Some compilers have limits on line lengths, and the multilib_select
972 and/or multilib_matches strings can be very long, so we build them at
974 static struct obstack multilib_obstack
;
975 static const char *multilib_select
;
976 static const char *multilib_matches
;
977 static const char *multilib_defaults
;
978 static const char *multilib_exclusions
;
979 static const char *multilib_reuse
;
981 /* Check whether a particular argument is a default argument. */
983 #ifndef MULTILIB_DEFAULTS
984 #define MULTILIB_DEFAULTS { "" }
987 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
989 #ifndef DRIVER_SELF_SPECS
990 #define DRIVER_SELF_SPECS ""
993 /* Linking to libgomp implies pthreads. This is particularly important
994 for targets that use different start files and suchlike. */
995 #ifndef GOMP_SELF_SPECS
996 #define GOMP_SELF_SPECS "%{fopenacc|fopenmp|ftree-parallelize-loops=*: " \
1000 /* Likewise for -fgnu-tm. */
1001 #ifndef GTM_SELF_SPECS
1002 #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}"
1005 /* Likewise for -fcilkplus. */
1006 #ifndef CILK_SELF_SPECS
1007 #define CILK_SELF_SPECS "%{fcilkplus: -pthread}"
1010 static const char *const driver_self_specs
[] = {
1011 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
1012 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
, GTM_SELF_SPECS
,
1016 #ifndef OPTION_DEFAULT_SPECS
1017 #define OPTION_DEFAULT_SPECS { "", "" }
1026 static const struct default_spec
1027 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
1031 struct user_specs
*next
;
1032 const char *filename
;
1035 static struct user_specs
*user_specs_head
, *user_specs_tail
;
1038 /* Record the mapping from file suffixes for compilation specs. */
1042 const char *suffix
; /* Use this compiler for input files
1043 whose names end in this suffix. */
1045 const char *spec
; /* To use this compiler, run this spec. */
1047 const char *cpp_spec
; /* If non-NULL, substitute this spec
1048 for `%C', rather than the usual
1050 const int combinable
; /* If nonzero, compiler can deal with
1051 multiple source files at once (IMA). */
1052 const int needs_preprocessing
; /* If nonzero, source files need to
1053 be run through a preprocessor. */
1056 /* Pointer to a vector of `struct compiler' that gives the spec for
1057 compiling a file, based on its suffix.
1058 A file that does not end in any of these suffixes will be passed
1059 unchanged to the loader and nothing else will be done to it.
1061 An entry containing two 0s is used to terminate the vector.
1063 If multiple entries match a file, the last matching one is used. */
1065 static struct compiler
*compilers
;
1067 /* Number of entries in `compilers', not counting the null terminator. */
1069 static int n_compilers
;
1071 /* The default list of file name suffixes and their compilation specs. */
1073 static const struct compiler default_compilers
[] =
1075 /* Add lists of suffixes of known languages here. If those languages
1076 were not present when we built the driver, we will hit these copies
1077 and be given a more meaningful error than "file not used since
1078 linking is not done". */
1079 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1080 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1081 {".mii", "#Objective-C++", 0, 0, 0},
1082 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1083 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1084 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1085 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1086 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1087 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1088 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1089 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1090 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1091 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1092 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1093 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1094 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1095 {".r", "#Ratfor", 0, 0, 0},
1096 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
1097 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
1098 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
1099 {".go", "#Go", 0, 1, 0},
1100 /* Next come the entries for C. */
1101 {".c", "@c", 0, 0, 1},
1103 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1104 external preprocessor if -save-temps is given. */
1105 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1108 %eGNU C no longer supports -traditional without -E}\
1109 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1110 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1111 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1113 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1114 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1115 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
1117 "%{!E:%e-E or -x required when input is from standard input}\
1118 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1119 {".h", "@c-header", 0, 0, 0},
1121 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1122 external preprocessor if -save-temps is given. */
1123 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1125 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1126 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1127 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1129 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
1130 %W{o*:--output-pch=%*}}%V}\
1131 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1132 cc1 %(cpp_unique_options) %(cc1_options)\
1133 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
1134 %W{o*:--output-pch=%*}}%V}}}}}}", 0, 0, 0},
1135 {".i", "@cpp-output", 0, 0, 0},
1137 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
1138 {".s", "@assembler", 0, 0, 0},
1140 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
1141 {".sx", "@assembler-with-cpp", 0, 0, 0},
1142 {".S", "@assembler-with-cpp", 0, 0, 0},
1143 {"@assembler-with-cpp",
1144 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1145 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1146 %{E|M|MM:%(cpp_debug_options)}\
1147 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1148 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1150 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1151 %{E|M|MM:%(cpp_debug_options)}\
1152 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1153 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1158 /* Mark end of table. */
1162 /* Number of elements in default_compilers, not counting the terminator. */
1164 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1166 typedef char *char_p
; /* For DEF_VEC_P. */
1168 /* A vector of options to give to the linker.
1169 These options are accumulated by %x,
1170 and substituted into the linker command with %X. */
1171 static vec
<char_p
> linker_options
;
1173 /* A vector of options to give to the assembler.
1174 These options are accumulated by -Wa,
1175 and substituted into the assembler command with %Y. */
1176 static vec
<char_p
> assembler_options
;
1178 /* A vector of options to give to the preprocessor.
1179 These options are accumulated by -Wp,
1180 and substituted into the preprocessor command with %Z. */
1181 static vec
<char_p
> preprocessor_options
;
1184 skip_whitespace (char *p
)
1188 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1189 be considered whitespace. */
1190 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1192 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1206 /* Structures to keep track of prefixes to try when looking for files. */
1210 const char *prefix
; /* String to prepend to the path. */
1211 struct prefix_list
*next
; /* Next in linked list. */
1212 int require_machine_suffix
; /* Don't use without machine_suffix. */
1213 /* 2 means try both machine_suffix and just_machine_suffix. */
1214 int priority
; /* Sort key - priority within list. */
1215 int os_multilib
; /* 1 if OS multilib scheme should be used,
1216 0 for GCC multilib scheme. */
1221 struct prefix_list
*plist
; /* List of prefixes to try */
1222 int max_len
; /* Max length of a prefix in PLIST */
1223 const char *name
; /* Name of this list (used in config stuff) */
1226 /* List of prefixes to try when looking for executables. */
1228 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1230 /* List of prefixes to try when looking for startup (crt0) files. */
1232 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1234 /* List of prefixes to try when looking for include files. */
1236 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1238 /* Suffix to attach to directories searched for commands.
1239 This looks like `MACHINE/VERSION/'. */
1241 static const char *machine_suffix
= 0;
1243 /* Suffix to attach to directories searched for commands.
1244 This is just `MACHINE/'. */
1246 static const char *just_machine_suffix
= 0;
1248 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1250 static const char *gcc_exec_prefix
;
1252 /* Adjusted value of standard_libexec_prefix. */
1254 static const char *gcc_libexec_prefix
;
1256 /* Default prefixes to attach to command names. */
1258 #ifndef STANDARD_STARTFILE_PREFIX_1
1259 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1261 #ifndef STANDARD_STARTFILE_PREFIX_2
1262 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1265 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1266 #undef MD_EXEC_PREFIX
1267 #undef MD_STARTFILE_PREFIX
1268 #undef MD_STARTFILE_PREFIX_1
1271 /* If no prefixes defined, use the null string, which will disable them. */
1272 #ifndef MD_EXEC_PREFIX
1273 #define MD_EXEC_PREFIX ""
1275 #ifndef MD_STARTFILE_PREFIX
1276 #define MD_STARTFILE_PREFIX ""
1278 #ifndef MD_STARTFILE_PREFIX_1
1279 #define MD_STARTFILE_PREFIX_1 ""
1282 /* These directories are locations set at configure-time based on the
1283 --prefix option provided to configure. Their initializers are
1284 defined in Makefile.in. These paths are not *directly* used when
1285 gcc_exec_prefix is set because, in that case, we know where the
1286 compiler has been installed, and use paths relative to that
1287 location instead. */
1288 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1289 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1290 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1291 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1293 /* For native compilers, these are well-known paths containing
1294 components that may be provided by the system. For cross
1295 compilers, these paths are not used. */
1296 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1297 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1298 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1299 static const char *const standard_startfile_prefix_1
1300 = STANDARD_STARTFILE_PREFIX_1
;
1301 static const char *const standard_startfile_prefix_2
1302 = STANDARD_STARTFILE_PREFIX_2
;
1304 /* A relative path to be used in finding the location of tools
1305 relative to the driver. */
1306 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1308 /* A prefix to be used when this is an accelerator compiler. */
1309 static const char *const accel_dir_suffix
= ACCEL_DIR_SUFFIX
;
1311 /* Subdirectory to use for locating libraries. Set by
1312 set_multilib_dir based on the compilation options. */
1314 static const char *multilib_dir
;
1316 /* Subdirectory to use for locating libraries in OS conventions. Set by
1317 set_multilib_dir based on the compilation options. */
1319 static const char *multilib_os_dir
;
1321 /* Subdirectory to use for locating libraries in multiarch conventions. Set by
1322 set_multilib_dir based on the compilation options. */
1324 static const char *multiarch_dir
;
1326 /* Structure to keep track of the specs that have been defined so far.
1327 These are accessed using %(specname) in a compiler or link
1332 /* The following 2 fields must be first */
1333 /* to allow EXTRA_SPECS to be initialized */
1334 const char *name
; /* name of the spec. */
1335 const char *ptr
; /* available ptr if no static pointer */
1337 /* The following fields are not initialized */
1338 /* by EXTRA_SPECS */
1339 const char **ptr_spec
; /* pointer to the spec itself. */
1340 struct spec_list
*next
; /* Next spec in linked list. */
1341 int name_len
; /* length of the name */
1342 bool user_p
; /* whether string come from file spec. */
1343 bool alloc_p
; /* whether string was allocated */
1346 #define INIT_STATIC_SPEC(NAME,PTR) \
1347 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, false, false }
1349 /* List of statically defined specs. */
1350 static struct spec_list static_specs
[] =
1352 INIT_STATIC_SPEC ("asm", &asm_spec
),
1353 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1354 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1355 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1356 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1357 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1358 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1359 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1360 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1361 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1362 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1363 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1364 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1365 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1366 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1367 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1368 INIT_STATIC_SPEC ("link", &link_spec
),
1369 INIT_STATIC_SPEC ("lib", &lib_spec
),
1370 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1371 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1372 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1373 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1374 INIT_STATIC_SPEC ("version", &compiler_version
),
1375 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1376 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1377 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1378 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1379 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1380 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1381 INIT_STATIC_SPEC ("multilib_reuse", &multilib_reuse
),
1382 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1383 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1384 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1385 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1386 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1387 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1388 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1389 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1390 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1391 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1392 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1393 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1394 INIT_STATIC_SPEC ("self_spec", &self_spec
),
1397 #ifdef EXTRA_SPECS /* additional specs needed */
1398 /* Structure to keep track of just the first two args of a spec_list.
1399 That is all that the EXTRA_SPECS macro gives us. */
1402 const char *const name
;
1403 const char *const ptr
;
1406 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1407 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1410 /* List of dynamically allocates specs that have been defined so far. */
1412 static struct spec_list
*specs
= (struct spec_list
*) 0;
1414 /* List of static spec functions. */
1416 static const struct spec_function static_spec_functions
[] =
1418 { "getenv", getenv_spec_function
},
1419 { "if-exists", if_exists_spec_function
},
1420 { "if-exists-else", if_exists_else_spec_function
},
1421 { "sanitize", sanitize_spec_function
},
1422 { "replace-outfile", replace_outfile_spec_function
},
1423 { "remove-outfile", remove_outfile_spec_function
},
1424 { "version-compare", version_compare_spec_function
},
1425 { "include", include_spec_function
},
1426 { "find-file", find_file_spec_function
},
1427 { "find-plugindir", find_plugindir_spec_function
},
1428 { "print-asm-header", print_asm_header_spec_function
},
1429 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1430 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1431 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1432 { "pass-through-libs", pass_through_libs_spec_func
},
1433 { "replace-extension", replace_extension_spec_func
},
1434 #ifdef EXTRA_SPEC_FUNCTIONS
1435 EXTRA_SPEC_FUNCTIONS
1440 static int processing_spec_function
;
1442 /* Add appropriate libgcc specs to OBSTACK, taking into account
1443 various permutations of -shared-libgcc, -shared, and such. */
1445 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1447 #ifndef USE_LD_AS_NEEDED
1448 #define USE_LD_AS_NEEDED 0
1452 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1453 const char *static_name
, const char *eh_name
)
1457 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1458 "%{!static:%{!static-libgcc:"
1459 #if USE_LD_AS_NEEDED
1460 "%{!shared-libgcc:",
1461 static_name
, " " LD_AS_NEEDED_OPTION
" ",
1462 shared_name
, " " LD_NO_AS_NEEDED_OPTION
1465 shared_name
, "%{!shared: ", static_name
, "}"
1469 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1470 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1474 "%{shared-libgcc:", shared_name
, "}"
1475 "%{!shared-libgcc:", static_name
, "}"
1478 "%{shared:", shared_name
, "}"
1483 obstack_grow (obstack
, buf
, strlen (buf
));
1486 #endif /* ENABLE_SHARED_LIBGCC */
1488 /* Initialize the specs lookup routines. */
1493 struct spec_list
*next
= (struct spec_list
*) 0;
1494 struct spec_list
*sl
= (struct spec_list
*) 0;
1498 return; /* Already initialized. */
1501 fnotice (stderr
, "Using built-in specs.\n");
1504 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1506 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1508 sl
= &extra_specs
[i
];
1509 sl
->name
= extra_specs_1
[i
].name
;
1510 sl
->ptr
= extra_specs_1
[i
].ptr
;
1512 sl
->name_len
= strlen (sl
->name
);
1513 sl
->ptr_spec
= &sl
->ptr
;
1518 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1520 sl
= &static_specs
[i
];
1525 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1526 /* ??? If neither -shared-libgcc nor --static-libgcc was
1527 seen, then we should be making an educated guess. Some proposed
1528 heuristics for ELF include:
1530 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1531 program will be doing dynamic loading, which will likely
1532 need the shared libgcc.
1534 (2) If "-ldl", then it's also a fair bet that we're doing
1537 (3) For each ET_DYN we're linking against (either through -lfoo
1538 or /some/path/foo.so), check to see whether it or one of
1539 its dependencies depends on a shared libgcc.
1543 If the runtime is fixed to look for program headers instead
1544 of calling __register_frame_info at all, for each object,
1545 use the shared libgcc if any EH symbol referenced.
1547 If crtstuff is fixed to not invoke __register_frame_info
1548 automatically, for each object, use the shared libgcc if
1549 any non-empty unwind section found.
1551 Doing any of this probably requires invoking an external program to
1552 do the actual object file scanning. */
1554 const char *p
= libgcc_spec
;
1557 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1558 when given the proper command line arguments. */
1561 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1563 init_gcc_specs (&obstack
,
1565 #ifdef USE_LIBUNWIND_EXCEPTIONS
1571 #ifdef USE_LIBUNWIND_EXCEPTIONS
1572 # ifdef HAVE_LD_STATIC_DYNAMIC
1573 " %{!static:" LD_STATIC_OPTION
"} -lunwind"
1574 " %{!static:" LD_DYNAMIC_OPTION
"}"
1584 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1586 /* Ug. We don't know shared library extensions. Hope that
1587 systems that use this form don't do shared libraries. */
1588 init_gcc_specs (&obstack
,
1592 #ifdef USE_LIBUNWIND_EXCEPTIONS
1601 obstack_1grow (&obstack
, *p
);
1602 in_sep
= (*p
== ' ');
1607 obstack_1grow (&obstack
, '\0');
1608 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1611 #ifdef USE_AS_TRADITIONAL_FORMAT
1612 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1614 static const char tf
[] = "--traditional-format ";
1615 obstack_grow (&obstack
, tf
, sizeof (tf
) - 1);
1616 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1617 asm_spec
= XOBFINISH (&obstack
, const char *);
1621 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \
1622 defined LINKER_HASH_STYLE
1623 # ifdef LINK_BUILDID_SPEC
1624 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1625 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof (LINK_BUILDID_SPEC
) - 1);
1627 # ifdef LINK_EH_SPEC
1628 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1629 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof (LINK_EH_SPEC
) - 1);
1631 # ifdef LINKER_HASH_STYLE
1632 /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had
1635 static const char hash_style
[] = "--hash-style=";
1636 obstack_grow (&obstack
, hash_style
, sizeof (hash_style
) - 1);
1637 obstack_grow (&obstack
, LINKER_HASH_STYLE
, sizeof (LINKER_HASH_STYLE
) - 1);
1638 obstack_1grow (&obstack
, ' ');
1641 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1642 link_spec
= XOBFINISH (&obstack
, const char *);
1648 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1649 removed; If the spec starts with a + then SPEC is added to the end of the
1653 set_spec (const char *name
, const char *spec
, bool user_p
)
1655 struct spec_list
*sl
;
1656 const char *old_spec
;
1657 int name_len
= strlen (name
);
1660 /* If this is the first call, initialize the statically allocated specs. */
1663 struct spec_list
*next
= (struct spec_list
*) 0;
1664 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1666 sl
= &static_specs
[i
];
1673 /* See if the spec already exists. */
1674 for (sl
= specs
; sl
; sl
= sl
->next
)
1675 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1680 /* Not found - make it. */
1681 sl
= XNEW (struct spec_list
);
1682 sl
->name
= xstrdup (name
);
1683 sl
->name_len
= name_len
;
1684 sl
->ptr_spec
= &sl
->ptr
;
1686 *(sl
->ptr_spec
) = "";
1691 old_spec
= *(sl
->ptr_spec
);
1692 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1693 ? concat (old_spec
, spec
+ 1, NULL
)
1698 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1701 /* Free the old spec. */
1702 if (old_spec
&& sl
->alloc_p
)
1703 free (CONST_CAST (char *, old_spec
));
1705 sl
->user_p
= user_p
;
1709 /* Accumulate a command (program name and args), and run it. */
1711 typedef const char *const_char_p
; /* For DEF_VEC_P. */
1713 /* Vector of pointers to arguments in the current line of specifications. */
1715 static vec
<const_char_p
> argbuf
;
1717 /* Were the options -c, -S or -E passed. */
1718 static int have_c
= 0;
1720 /* Was the option -o passed. */
1721 static int have_o
= 0;
1723 /* Pointer to output file name passed in with -o. */
1724 static const char *output_file
= 0;
1726 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1727 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1730 static struct temp_name
{
1731 const char *suffix
; /* suffix associated with the code. */
1732 int length
; /* strlen (suffix). */
1733 int unique
; /* Indicates whether %g or %u/%U was used. */
1734 const char *filename
; /* associated filename. */
1735 int filename_length
; /* strlen (filename). */
1736 struct temp_name
*next
;
1739 /* Number of commands executed so far. */
1741 static int execution_count
;
1743 /* Number of commands that exited with a signal. */
1745 static int signal_count
;
1747 /* Allocate the argument vector. */
1755 /* Clear out the vector of arguments (after a command is executed). */
1760 argbuf
.truncate (0);
1763 /* Add one argument to the vector at the end.
1764 This is done when a space is seen or at the end of the line.
1765 If DELETE_ALWAYS is nonzero, the arg is a filename
1766 and the file should be deleted eventually.
1767 If DELETE_FAILURE is nonzero, the arg is a filename
1768 and the file should be deleted if this compilation fails. */
1771 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1773 argbuf
.safe_push (arg
);
1775 if (delete_always
|| delete_failure
)
1778 /* If the temporary file we should delete is specified as
1779 part of a joined argument extract the filename. */
1781 && (p
= strrchr (arg
, '=')))
1783 record_temp_file (arg
, delete_always
, delete_failure
);
1787 /* Load specs from a file name named FILENAME, replacing occurrences of
1788 various different types of line-endings, \r\n, \n\r and just \r, with
1792 load_specs (const char *filename
)
1796 struct stat statbuf
;
1803 fnotice (stderr
, "Reading specs from %s\n", filename
);
1805 /* Open and stat the file. */
1806 desc
= open (filename
, O_RDONLY
, 0);
1808 pfatal_with_name (filename
);
1809 if (stat (filename
, &statbuf
) < 0)
1810 pfatal_with_name (filename
);
1812 /* Read contents of file into BUFFER. */
1813 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
1814 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1816 pfatal_with_name (filename
);
1817 buffer
[readlen
] = 0;
1820 specs
= XNEWVEC (char, readlen
+ 1);
1822 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1828 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1830 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1844 /* Read compilation specs from a file named FILENAME,
1845 replacing the default ones.
1847 A suffix which starts with `*' is a definition for
1848 one of the machine-specific sub-specs. The "suffix" should be
1849 *asm, *cc1, *cpp, *link, *startfile, etc.
1850 The corresponding spec is stored in asm_spec, etc.,
1851 rather than in the `compilers' vector.
1853 Anything invalid in the file is a fatal error. */
1856 read_specs (const char *filename
, bool main_p
, bool user_p
)
1861 buffer
= load_specs (filename
);
1863 /* Scan BUFFER for specs, putting them in the vector. */
1869 char *in
, *out
, *p1
, *p2
, *p3
;
1871 /* Advance P in BUFFER to the next nonblank nocomment line. */
1872 p
= skip_whitespace (p
);
1876 /* Is this a special command that starts with '%'? */
1877 /* Don't allow this for the main specs file, since it would
1878 encourage people to overwrite it. */
1879 if (*p
== '%' && !main_p
)
1882 while (*p
&& *p
!= '\n')
1888 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1889 && (p1
[sizeof "%include" - 1] == ' '
1890 || p1
[sizeof "%include" - 1] == '\t'))
1894 p1
+= sizeof ("%include");
1895 while (*p1
== ' ' || *p1
== '\t')
1898 if (*p1
++ != '<' || p
[-2] != '>')
1899 fatal_error ("specs %%include syntax malformed after "
1901 (long) (p1
- buffer
+ 1));
1904 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1905 read_specs (new_filename
? new_filename
: p1
, false, user_p
);
1908 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1909 && (p1
[sizeof "%include_noerr" - 1] == ' '
1910 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1914 p1
+= sizeof "%include_noerr";
1915 while (*p1
== ' ' || *p1
== '\t')
1918 if (*p1
++ != '<' || p
[-2] != '>')
1919 fatal_error ("specs %%include syntax malformed after "
1921 (long) (p1
- buffer
+ 1));
1924 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1926 read_specs (new_filename
, false, user_p
);
1927 else if (verbose_flag
)
1928 fnotice (stderr
, "could not find specs file %s\n", p1
);
1931 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1932 && (p1
[sizeof "%rename" - 1] == ' '
1933 || p1
[sizeof "%rename" - 1] == '\t'))
1936 struct spec_list
*sl
;
1937 struct spec_list
*newsl
;
1939 /* Get original name. */
1940 p1
+= sizeof "%rename";
1941 while (*p1
== ' ' || *p1
== '\t')
1944 if (! ISALPHA ((unsigned char) *p1
))
1945 fatal_error ("specs %%rename syntax malformed after "
1947 (long) (p1
- buffer
));
1950 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1953 if (*p2
!= ' ' && *p2
!= '\t')
1954 fatal_error ("specs %%rename syntax malformed after "
1956 (long) (p2
- buffer
));
1960 while (*p2
== ' ' || *p2
== '\t')
1963 if (! ISALPHA ((unsigned char) *p2
))
1964 fatal_error ("specs %%rename syntax malformed after "
1966 (long) (p2
- buffer
));
1968 /* Get new spec name. */
1970 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
1974 fatal_error ("specs %%rename syntax malformed after "
1976 (long) (p3
- buffer
));
1979 for (sl
= specs
; sl
; sl
= sl
->next
)
1980 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1984 fatal_error ("specs %s spec was not found to be renamed", p1
);
1986 if (strcmp (p1
, p2
) == 0)
1989 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
1990 if (strcmp (newsl
->name
, p2
) == 0)
1991 fatal_error ("%s: attempt to rename spec %qs to "
1992 "already defined spec %qs",
1997 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
1999 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
2003 set_spec (p2
, *(sl
->ptr_spec
), user_p
);
2005 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2007 *(sl
->ptr_spec
) = "";
2012 fatal_error ("specs unknown %% command after %ld characters",
2013 (long) (p1
- buffer
));
2016 /* Find the colon that should end the suffix. */
2018 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2021 /* The colon shouldn't be missing. */
2023 fatal_error ("specs file malformed after %ld characters",
2024 (long) (p1
- buffer
));
2026 /* Skip back over trailing whitespace. */
2028 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2031 /* Copy the suffix to a string. */
2032 suffix
= save_string (p
, p2
- p
);
2033 /* Find the next line. */
2034 p
= skip_whitespace (p1
+ 1);
2036 fatal_error ("specs file malformed after %ld characters",
2037 (long) (p
- buffer
));
2040 /* Find next blank line or end of string. */
2041 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2044 /* Specs end at the blank line and do not include the newline. */
2045 spec
= save_string (p
, p1
- p
);
2048 /* Delete backslash-newline sequences from the spec. */
2053 if (in
[0] == '\\' && in
[1] == '\n')
2055 else if (in
[0] == '#')
2056 while (*in
&& *in
!= '\n')
2064 if (suffix
[0] == '*')
2066 if (! strcmp (suffix
, "*link_command"))
2067 link_command_spec
= spec
;
2069 set_spec (suffix
+ 1, spec
, user_p
);
2073 /* Add this pair to the vector. */
2075 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2077 compilers
[n_compilers
].suffix
= suffix
;
2078 compilers
[n_compilers
].spec
= spec
;
2080 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2084 link_command_spec
= spec
;
2087 if (link_command_spec
== 0)
2088 fatal_error ("spec file has no spec for linking");
2091 /* Record the names of temporary files we tell compilers to write,
2092 and delete them at the end of the run. */
2094 /* This is the common prefix we use to make temp file names.
2095 It is chosen once for each run of this program.
2096 It is substituted into a spec by %g or %j.
2097 Thus, all temp file names contain this prefix.
2098 In practice, all temp file names start with this prefix.
2100 This prefix comes from the envvar TMPDIR if it is defined;
2101 otherwise, from the P_tmpdir macro if that is defined;
2102 otherwise, in /usr/tmp or /tmp;
2103 or finally the current directory if all else fails. */
2105 static const char *temp_filename
;
2107 /* Length of the prefix. */
2109 static int temp_filename_length
;
2111 /* Define the list of temporary files to delete. */
2116 struct temp_file
*next
;
2119 /* Queue of files to delete on success or failure of compilation. */
2120 static struct temp_file
*always_delete_queue
;
2121 /* Queue of files to delete on failure of compilation. */
2122 static struct temp_file
*failure_delete_queue
;
2124 /* Record FILENAME as a file to be deleted automatically.
2125 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2126 otherwise delete it in any case.
2127 FAIL_DELETE nonzero means delete it if a compilation step fails;
2128 otherwise delete it in any case. */
2131 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2133 char *const name
= xstrdup (filename
);
2137 struct temp_file
*temp
;
2138 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2139 if (! filename_cmp (name
, temp
->name
))
2142 temp
= XNEW (struct temp_file
);
2143 temp
->next
= always_delete_queue
;
2145 always_delete_queue
= temp
;
2152 struct temp_file
*temp
;
2153 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2154 if (! filename_cmp (name
, temp
->name
))
2160 temp
= XNEW (struct temp_file
);
2161 temp
->next
= failure_delete_queue
;
2163 failure_delete_queue
= temp
;
2169 /* Delete all the temporary files whose names we previously recorded. */
2171 #ifndef DELETE_IF_ORDINARY
2172 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2175 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2176 if (unlink (NAME) < 0) \
2178 perror_with_name (NAME); \
2183 delete_if_ordinary (const char *name
)
2189 printf ("Delete %s? (y or n) ", name
);
2193 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2196 if (i
== 'y' || i
== 'Y')
2198 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2202 delete_temp_files (void)
2204 struct temp_file
*temp
;
2206 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2207 delete_if_ordinary (temp
->name
);
2208 always_delete_queue
= 0;
2211 /* Delete all the files to be deleted on error. */
2214 delete_failure_queue (void)
2216 struct temp_file
*temp
;
2218 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2219 delete_if_ordinary (temp
->name
);
2223 clear_failure_queue (void)
2225 failure_delete_queue
= 0;
2228 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2230 If DO_MULTI is true iterate over the paths twice, first with multilib
2231 suffix then without, otherwise iterate over the paths once without
2232 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2233 to avoid visiting the same path twice, but we could do better. For
2234 instance, /usr/lib/../lib is considered different from /usr/lib.
2235 At least EXTRA_SPACE chars past the end of the path passed to
2236 CALLBACK are available for use by the callback.
2237 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2239 Returns the value returned by CALLBACK. */
2242 for_each_path (const struct path_prefix
*paths
,
2245 void *(*callback
) (char *, void *),
2246 void *callback_info
)
2248 struct prefix_list
*pl
;
2249 const char *multi_dir
= NULL
;
2250 const char *multi_os_dir
= NULL
;
2251 const char *multiarch_suffix
= NULL
;
2252 const char *multi_suffix
;
2253 const char *just_multi_suffix
;
2256 bool skip_multi_dir
= false;
2257 bool skip_multi_os_dir
= false;
2259 multi_suffix
= machine_suffix
;
2260 just_multi_suffix
= just_machine_suffix
;
2261 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2263 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2264 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2265 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2267 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2268 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2270 multiarch_suffix
= concat (multiarch_dir
, dir_separator_str
, NULL
);
2274 size_t multi_dir_len
= 0;
2275 size_t multi_os_dir_len
= 0;
2276 size_t multiarch_len
= 0;
2278 size_t just_suffix_len
;
2282 multi_dir_len
= strlen (multi_dir
);
2284 multi_os_dir_len
= strlen (multi_os_dir
);
2285 if (multiarch_suffix
)
2286 multiarch_len
= strlen (multiarch_suffix
);
2287 suffix_len
= strlen (multi_suffix
);
2288 just_suffix_len
= strlen (just_multi_suffix
);
2292 len
= paths
->max_len
+ extra_space
+ 1;
2293 len
+= MAX (MAX (suffix_len
, multi_os_dir_len
), multiarch_len
);
2294 path
= XNEWVEC (char, len
);
2297 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2299 len
= strlen (pl
->prefix
);
2300 memcpy (path
, pl
->prefix
, len
);
2302 /* Look first in MACHINE/VERSION subdirectory. */
2303 if (!skip_multi_dir
)
2305 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2306 ret
= callback (path
, callback_info
);
2311 /* Some paths are tried with just the machine (ie. target)
2312 subdir. This is used for finding as, ld, etc. */
2314 && pl
->require_machine_suffix
== 2)
2316 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2317 ret
= callback (path
, callback_info
);
2322 /* Now try the multiarch path. */
2324 && !pl
->require_machine_suffix
&& multiarch_dir
)
2326 memcpy (path
+ len
, multiarch_suffix
, multiarch_len
+ 1);
2327 ret
= callback (path
, callback_info
);
2332 /* Now try the base path. */
2333 if (!pl
->require_machine_suffix
2334 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2336 const char *this_multi
;
2337 size_t this_multi_len
;
2339 if (pl
->os_multilib
)
2341 this_multi
= multi_os_dir
;
2342 this_multi_len
= multi_os_dir_len
;
2346 this_multi
= multi_dir
;
2347 this_multi_len
= multi_dir_len
;
2351 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2355 ret
= callback (path
, callback_info
);
2363 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2366 /* Run through the paths again, this time without multilibs.
2367 Don't repeat any we have already seen. */
2370 free (CONST_CAST (char *, multi_dir
));
2372 free (CONST_CAST (char *, multi_suffix
));
2373 multi_suffix
= machine_suffix
;
2374 free (CONST_CAST (char *, just_multi_suffix
));
2375 just_multi_suffix
= just_machine_suffix
;
2378 skip_multi_dir
= true;
2381 free (CONST_CAST (char *, multi_os_dir
));
2382 multi_os_dir
= NULL
;
2385 skip_multi_os_dir
= true;
2390 free (CONST_CAST (char *, multi_dir
));
2391 free (CONST_CAST (char *, multi_suffix
));
2392 free (CONST_CAST (char *, just_multi_suffix
));
2395 free (CONST_CAST (char *, multi_os_dir
));
2401 /* Callback for build_search_list. Adds path to obstack being built. */
2403 struct add_to_obstack_info
{
2410 add_to_obstack (char *path
, void *data
)
2412 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2414 if (info
->check_dir
&& !is_directory (path
, false))
2417 if (!info
->first_time
)
2418 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2420 obstack_grow (info
->ob
, path
, strlen (path
));
2422 info
->first_time
= false;
2426 /* Add or change the value of an environment variable, outputting the
2427 change to standard error if in verbose mode. */
2429 xputenv (const char *string
)
2432 fnotice (stderr
, "%s\n", string
);
2433 putenv (CONST_CAST (char *, string
));
2436 /* Build a list of search directories from PATHS.
2437 PREFIX is a string to prepend to the list.
2438 If CHECK_DIR_P is true we ensure the directory exists.
2439 If DO_MULTI is true, multilib paths are output first, then
2441 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2442 It is also used by the --print-search-dirs flag. */
2445 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2446 bool check_dir
, bool do_multi
)
2448 struct add_to_obstack_info info
;
2450 info
.ob
= &collect_obstack
;
2451 info
.check_dir
= check_dir
;
2452 info
.first_time
= true;
2454 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2455 obstack_1grow (&collect_obstack
, '=');
2457 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2459 obstack_1grow (&collect_obstack
, '\0');
2460 return XOBFINISH (&collect_obstack
, char *);
2463 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2467 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2470 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2473 /* Check whether NAME can be accessed in MODE. This is like access,
2474 except that it never considers directories to be executable. */
2477 access_check (const char *name
, int mode
)
2483 if (stat (name
, &st
) < 0
2484 || S_ISDIR (st
.st_mode
))
2488 return access (name
, mode
);
2491 /* Callback for find_a_file. Appends the file name to the directory
2492 path. If the resulting file exists in the right mode, return the
2493 full pathname to the file. */
2495 struct file_at_path_info
{
2504 file_at_path (char *path
, void *data
)
2506 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2507 size_t len
= strlen (path
);
2509 memcpy (path
+ len
, info
->name
, info
->name_len
);
2510 len
+= info
->name_len
;
2512 /* Some systems have a suffix for executable files.
2513 So try appending that first. */
2514 if (info
->suffix_len
)
2516 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2517 if (access_check (path
, info
->mode
) == 0)
2522 if (access_check (path
, info
->mode
) == 0)
2528 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2529 access to check permissions. If DO_MULTI is true, search multilib
2530 paths then non-multilib paths, otherwise do not search multilib paths.
2531 Return 0 if not found, otherwise return its name, allocated with malloc. */
2534 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2537 struct file_at_path_info info
;
2539 #ifdef DEFAULT_ASSEMBLER
2540 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2541 return xstrdup (DEFAULT_ASSEMBLER
);
2544 #ifdef DEFAULT_LINKER
2545 if (! strcmp (name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2546 return xstrdup (DEFAULT_LINKER
);
2549 /* Determine the filename to execute (special case for absolute paths). */
2551 if (IS_ABSOLUTE_PATH (name
))
2553 if (access (name
, mode
) == 0)
2554 return xstrdup (name
);
2560 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2561 info
.name_len
= strlen (info
.name
);
2562 info
.suffix_len
= strlen (info
.suffix
);
2565 return (char*) for_each_path (pprefix
, do_multi
,
2566 info
.name_len
+ info
.suffix_len
,
2567 file_at_path
, &info
);
2570 /* Ranking of prefixes in the sort list. -B prefixes are put before
2573 enum path_prefix_priority
2575 PREFIX_PRIORITY_B_OPT
,
2576 PREFIX_PRIORITY_LAST
2579 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2580 order according to PRIORITY. Within each PRIORITY, new entries are
2583 If WARN is nonzero, we will warn if no file is found
2584 through this prefix. WARN should point to an int
2585 which will be set to 1 if this entry is used.
2587 COMPONENT is the value to be passed to update_path.
2589 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2590 the complete value of machine_suffix.
2591 2 means try both machine_suffix and just_machine_suffix. */
2594 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2595 const char *component
, /* enum prefix_priority */ int priority
,
2596 int require_machine_suffix
, int os_multilib
)
2598 struct prefix_list
*pl
, **prev
;
2601 for (prev
= &pprefix
->plist
;
2602 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2603 prev
= &(*prev
)->next
)
2606 /* Keep track of the longest prefix. */
2608 prefix
= update_path (prefix
, component
);
2609 len
= strlen (prefix
);
2610 if (len
> pprefix
->max_len
)
2611 pprefix
->max_len
= len
;
2613 pl
= XNEW (struct prefix_list
);
2614 pl
->prefix
= prefix
;
2615 pl
->require_machine_suffix
= require_machine_suffix
;
2616 pl
->priority
= priority
;
2617 pl
->os_multilib
= os_multilib
;
2619 /* Insert after PREV. */
2624 /* Same as add_prefix, but prepending target_system_root to prefix. */
2625 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2627 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2628 const char *component
,
2629 /* enum prefix_priority */ int priority
,
2630 int require_machine_suffix
, int os_multilib
)
2632 if (!IS_ABSOLUTE_PATH (prefix
))
2633 fatal_error ("system path %qs is not absolute", prefix
);
2635 if (target_system_root
)
2637 char *sysroot_no_trailing_dir_separator
= xstrdup (target_system_root
);
2638 size_t sysroot_len
= strlen (target_system_root
);
2641 && target_system_root
[sysroot_len
- 1] == DIR_SEPARATOR
)
2642 sysroot_no_trailing_dir_separator
[sysroot_len
- 1] = '\0';
2644 if (target_sysroot_suffix
)
2645 prefix
= concat (sysroot_no_trailing_dir_separator
,
2646 target_sysroot_suffix
, prefix
, NULL
);
2648 prefix
= concat (sysroot_no_trailing_dir_separator
, prefix
, NULL
);
2650 free (sysroot_no_trailing_dir_separator
);
2652 /* We have to override this because GCC's notion of sysroot
2653 moves along with GCC. */
2657 add_prefix (pprefix
, prefix
, component
, priority
,
2658 require_machine_suffix
, os_multilib
);
2661 /* Execute the command specified by the arguments on the current line of spec.
2662 When using pipes, this includes several piped-together commands
2663 with `|' between them.
2665 Return 0 if successful, -1 if failed. */
2671 int n_commands
; /* # of command. */
2673 struct pex_obj
*pex
;
2676 const char *prog
; /* program name. */
2677 const char **argv
; /* vector of args. */
2681 struct command
*commands
; /* each command buffer with above info. */
2683 gcc_assert (!processing_spec_function
);
2687 string
= find_a_file (&exec_prefixes
,
2688 argbuf
[0], X_OK
, false);
2691 insert_wrapper (wrapper_string
);
2694 /* Count # of piped commands. */
2695 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2696 if (strcmp (arg
, "|") == 0)
2699 /* Get storage for each command. */
2700 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2702 /* Split argbuf into its separate piped processes,
2703 and record info about each one.
2704 Also search for the programs that are to be run. */
2706 argbuf
.safe_push (0);
2708 commands
[0].prog
= argbuf
[0]; /* first command. */
2709 commands
[0].argv
= argbuf
.address ();
2711 if (!wrapper_string
)
2713 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2714 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2717 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2718 if (arg
&& strcmp (arg
, "|") == 0)
2719 { /* each command. */
2720 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2721 fatal_error ("-pipe not supported");
2723 argbuf
[i
] = 0; /* Termination of
2725 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2726 commands
[n_commands
].argv
2727 = &(argbuf
.address ())[i
+ 1];
2728 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2731 commands
[n_commands
].argv
[0] = string
;
2735 /* If -v, print what we are about to do, and maybe query. */
2739 /* For help listings, put a blank line between sub-processes. */
2740 if (print_help_list
)
2741 fputc ('\n', stderr
);
2743 /* Print each piped command as a separate line. */
2744 for (i
= 0; i
< n_commands
; i
++)
2746 const char *const *j
;
2748 if (verbose_only_flag
)
2750 for (j
= commands
[i
].argv
; *j
; j
++)
2753 for (p
= *j
; *p
; ++p
)
2754 if (!ISALNUM ((unsigned char) *p
)
2755 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
2759 fprintf (stderr
, " \"");
2760 for (p
= *j
; *p
; ++p
)
2762 if (*p
== '"' || *p
== '\\' || *p
== '$')
2763 fputc ('\\', stderr
);
2766 fputc ('"', stderr
);
2768 /* If it's empty, print "". */
2770 fprintf (stderr
, " \"\"");
2772 fprintf (stderr
, " %s", *j
);
2776 for (j
= commands
[i
].argv
; *j
; j
++)
2777 /* If it's empty, print "". */
2779 fprintf (stderr
, " \"\"");
2781 fprintf (stderr
, " %s", *j
);
2783 /* Print a pipe symbol after all but the last command. */
2784 if (i
+ 1 != n_commands
)
2785 fprintf (stderr
, " |");
2786 fprintf (stderr
, "\n");
2789 if (verbose_only_flag
!= 0)
2791 /* verbose_only_flag should act as if the spec was
2792 executed, so increment execution_count before
2793 returning. This prevents spurious warnings about
2794 unused linker input files, etc. */
2799 fnotice (stderr
, "\nGo ahead? (y or n) ");
2803 while (getchar () != '\n')
2806 if (i
!= 'y' && i
!= 'Y')
2811 #ifdef ENABLE_VALGRIND_CHECKING
2812 /* Run the each command through valgrind. To simplify prepending the
2813 path to valgrind and the option "-q" (for quiet operation unless
2814 something triggers), we allocate a separate argv array. */
2816 for (i
= 0; i
< n_commands
; i
++)
2822 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2825 argv
= XALLOCAVEC (const char *, argc
+ 3);
2827 argv
[0] = VALGRIND_PATH
;
2829 for (j
= 2; j
< argc
+ 2; j
++)
2830 argv
[j
] = commands
[i
].argv
[j
- 2];
2833 commands
[i
].argv
= argv
;
2834 commands
[i
].prog
= argv
[0];
2838 /* Run each piped subprocess. */
2840 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
2841 ? PEX_RECORD_TIMES
: 0),
2842 progname
, temp_filename
);
2844 fatal_error ("pex_init failed: %m");
2846 for (i
= 0; i
< n_commands
; i
++)
2850 const char *string
= commands
[i
].argv
[0];
2852 errmsg
= pex_run (pex
,
2853 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
2854 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
2855 string
, CONST_CAST (char **, commands
[i
].argv
),
2860 fatal_error (errmsg
);
2864 pfatal_with_name (errmsg
);
2868 if (i
&& string
!= commands
[i
].prog
)
2869 free (CONST_CAST (char *, string
));
2874 /* Wait for all the subprocesses to finish. */
2878 struct pex_time
*times
= NULL
;
2881 statuses
= (int *) alloca (n_commands
* sizeof (int));
2882 if (!pex_get_status (pex
, n_commands
, statuses
))
2883 fatal_error ("failed to get exit status: %m");
2885 if (report_times
|| report_times_to_file
)
2887 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
2888 if (!pex_get_times (pex
, n_commands
, times
))
2889 fatal_error ("failed to get process times: %m");
2894 for (i
= 0; i
< n_commands
; ++i
)
2896 int status
= statuses
[i
];
2898 if (WIFSIGNALED (status
))
2901 /* SIGPIPE is a special case. It happens in -pipe mode
2902 when the compiler dies before the preprocessor is done,
2903 or the assembler dies before the compiler is done.
2904 There's generally been an error already, and this is
2905 just fallout. So don't generate another error unless
2906 we would otherwise have succeeded. */
2907 if (WTERMSIG (status
) == SIGPIPE
2908 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2915 internal_error ("%s (program %s)",
2916 strsignal (WTERMSIG (status
)), commands
[i
].prog
);
2918 else if (WIFEXITED (status
)
2919 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2921 /* For ICEs in cc1, cc1obj, cc1plus see if it is
2922 reproducible or not. */
2925 && WEXITSTATUS (status
) == ICE_EXIT_CODE
2927 && (p
= strrchr (commands
[0].argv
[0], DIR_SEPARATOR
))
2928 && ! strncmp (p
+ 1, "cc1", 3))
2929 try_generate_repro (commands
[0].argv
);
2930 if (WEXITSTATUS (status
) > greatest_status
)
2931 greatest_status
= WEXITSTATUS (status
);
2935 if (report_times
|| report_times_to_file
)
2937 struct pex_time
*pt
= ×
[i
];
2940 ut
= ((double) pt
->user_seconds
2941 + (double) pt
->user_microseconds
/ 1.0e6
);
2942 st
= ((double) pt
->system_seconds
2943 + (double) pt
->system_microseconds
/ 1.0e6
);
2948 fnotice (stderr
, "# %s %.2f %.2f\n",
2949 commands
[i
].prog
, ut
, st
);
2951 if (report_times_to_file
)
2954 const char *const *j
;
2956 fprintf (report_times_to_file
, "%g %g", ut
, st
);
2958 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
2961 for (p
= *j
; *p
; ++p
)
2962 if (*p
== '"' || *p
== '\\' || *p
== '$'
2968 fprintf (report_times_to_file
, " \"");
2969 for (p
= *j
; *p
; ++p
)
2971 if (*p
== '"' || *p
== '\\' || *p
== '$')
2972 fputc ('\\', report_times_to_file
);
2973 fputc (*p
, report_times_to_file
);
2975 fputc ('"', report_times_to_file
);
2978 fprintf (report_times_to_file
, " %s", *j
);
2981 fputc ('\n', report_times_to_file
);
2987 if (commands
[0].argv
[0] != commands
[0].prog
)
2988 free (CONST_CAST (char *, commands
[0].argv
[0]));
2994 /* Find all the switches given to us
2995 and make a vector describing them.
2996 The elements of the vector are strings, one per switch given.
2997 If a switch uses following arguments, then the `part1' field
2998 is the switch itself and the `args' field
2999 is a null-terminated vector containing the following arguments.
3000 Bits in the `live_cond' field are:
3001 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3002 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3003 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3004 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored
3005 in all do_spec calls afterwards. Used for %<S from self specs.
3006 The `validated' field is nonzero if any spec has looked at this switch;
3007 if it remains zero at the end of the run, it must be meaningless. */
3009 #define SWITCH_LIVE (1 << 0)
3010 #define SWITCH_FALSE (1 << 1)
3011 #define SWITCH_IGNORE (1 << 2)
3012 #define SWITCH_IGNORE_PERMANENTLY (1 << 3)
3013 #define SWITCH_KEEP_FOR_GCC (1 << 4)
3019 unsigned int live_cond
;
3025 static struct switchstr
*switches
;
3027 static int n_switches
;
3029 static int n_switches_alloc
;
3031 /* Set to zero if -fcompare-debug is disabled, positive if it's
3032 enabled and we're running the first compilation, negative if it's
3033 enabled and we're running the second compilation. For most of the
3034 time, it's in the range -1..1, but it can be temporarily set to 2
3035 or 3 to indicate that the -fcompare-debug flags didn't come from
3036 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3037 variable, until a synthesized -fcompare-debug flag is added to the
3041 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3042 int compare_debug_second
;
3044 /* Set to the flags that should be passed to the second compilation in
3045 a -fcompare-debug compilation. */
3046 const char *compare_debug_opt
;
3048 static struct switchstr
*switches_debug_check
[2];
3050 static int n_switches_debug_check
[2];
3052 static int n_switches_alloc_debug_check
[2];
3054 static char *debug_check_temp_file
[2];
3056 /* Language is one of three things:
3058 1) The name of a real programming language.
3059 2) NULL, indicating that no one has figured out
3061 3) '*', indicating that the file should be passed
3066 const char *language
;
3067 struct compiler
*incompiler
;
3072 /* Also a vector of input files specified. */
3074 static struct infile
*infiles
;
3078 static int n_infiles_alloc
;
3080 /* True if multiple input files are being compiled to a single
3083 static bool combine_inputs
;
3085 /* This counts the number of libraries added by lang_specific_driver, so that
3086 we can tell if there were any user supplied any files or libraries. */
3088 static int added_libraries
;
3090 /* And a vector of corresponding output files is made up later. */
3092 const char **outfiles
;
3094 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3096 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3097 is true if we should look for an executable suffix. DO_OBJ
3098 is true if we should look for an object suffix. */
3101 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3102 int do_obj ATTRIBUTE_UNUSED
)
3104 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3112 len
= strlen (name
);
3114 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3115 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3116 if (do_obj
&& len
> 2
3117 && name
[len
- 2] == '.'
3118 && name
[len
- 1] == 'o')
3120 obstack_grow (&obstack
, name
, len
- 2);
3121 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3122 name
= XOBFINISH (&obstack
, const char *);
3126 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3127 /* If there is no filetype, make it the executable suffix (which includes
3128 the "."). But don't get confused if we have just "-o". */
3129 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3132 for (i
= len
- 1; i
>= 0; i
--)
3133 if (IS_DIR_SEPARATOR (name
[i
]))
3136 for (i
++; i
< len
; i
++)
3140 obstack_grow (&obstack
, name
, len
);
3141 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3142 strlen (TARGET_EXECUTABLE_SUFFIX
));
3143 name
= XOBFINISH (&obstack
, const char *);
3150 /* Display the command line switches accepted by gcc. */
3154 printf (_("Usage: %s [options] file...\n"), progname
);
3155 fputs (_("Options:\n"), stdout
);
3157 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3158 fputs (_(" --help Display this information\n"), stdout
);
3159 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3160 fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...]\n"), stdout
);
3161 fputs (_(" Display specific types of command line options\n"), stdout
);
3163 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3164 fputs (_(" --version Display compiler version information\n"), stdout
);
3165 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3166 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3167 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3168 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3169 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3170 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3171 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3173 -print-multiarch Display the target's normalized GNU triplet, used as\n\
3174 a component in the library path\n"), stdout
);
3175 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3177 -print-multi-lib Display the mapping between command line options and\n\
3178 multiple library search directories\n"), stdout
);
3179 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3180 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout
);
3181 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
3182 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3183 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3184 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3185 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3186 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3187 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3188 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3189 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout
);
3191 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3192 prefixes to other gcc components\n"), stdout
);
3193 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3194 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3195 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3196 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3198 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3199 and libraries\n"), stdout
);
3200 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3201 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3202 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3203 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3204 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3205 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3206 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3207 fputs (_(" -pie Create a position independent executable\n"), stdout
);
3208 fputs (_(" -shared Create a shared library\n"), stdout
);
3210 -x <language> Specify the language of the following input files\n\
3211 Permissible languages include: c c++ assembler none\n\
3212 'none' means revert to the default behavior of\n\
3213 guessing the language based on the file's extension\n\
3217 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3218 passed on to the various sub-processes invoked by %s. In order to pass\n\
3219 other options on to these processes the -W<letter> options must be used.\n\
3222 /* The rest of the options are displayed by invocations of the various
3227 add_preprocessor_option (const char *option
, int len
)
3229 preprocessor_options
.safe_push (save_string (option
, len
));
3233 add_assembler_option (const char *option
, int len
)
3235 assembler_options
.safe_push (save_string (option
, len
));
3239 add_linker_option (const char *option
, int len
)
3241 linker_options
.safe_push (save_string (option
, len
));
3244 /* Allocate space for an input file in infiles. */
3249 if (n_infiles_alloc
== 0)
3251 n_infiles_alloc
= 16;
3252 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3254 else if (n_infiles_alloc
== n_infiles
)
3256 n_infiles_alloc
*= 2;
3257 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3261 /* Store an input file with the given NAME and LANGUAGE in
3265 add_infile (const char *name
, const char *language
)
3268 infiles
[n_infiles
].name
= name
;
3269 infiles
[n_infiles
++].language
= language
;
3272 /* Allocate space for a switch in switches. */
3277 if (n_switches_alloc
== 0)
3279 n_switches_alloc
= 16;
3280 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3282 else if (n_switches_alloc
== n_switches
)
3284 n_switches_alloc
*= 2;
3285 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3289 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3290 as validated if VALIDATED and KNOWN if it is an internal switch. */
3293 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3294 bool validated
, bool known
)
3297 switches
[n_switches
].part1
= opt
+ 1;
3299 switches
[n_switches
].args
= 0;
3302 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3303 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3304 switches
[n_switches
].args
[n_args
] = NULL
;
3307 switches
[n_switches
].live_cond
= 0;
3308 switches
[n_switches
].validated
= validated
;
3309 switches
[n_switches
].known
= known
;
3310 switches
[n_switches
].ordering
= 0;
3314 /* Handle an option DECODED that is unknown to the option-processing
3318 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3320 const char *opt
= decoded
->arg
;
3321 if (opt
[1] == 'W' && opt
[2] == 'n' && opt
[3] == 'o' && opt
[4] == '-'
3322 && !(decoded
->errors
& CL_ERR_NEGATIVE
))
3324 /* Leave unknown -Wno-* options for the compiler proper, to be
3325 diagnosed only if there are warnings. */
3326 save_switch (decoded
->canonical_option
[0],
3327 decoded
->canonical_option_num_elements
- 1,
3328 &decoded
->canonical_option
[1], false, true);
3331 if (decoded
->opt_index
== OPT_SPECIAL_unknown
)
3333 /* Give it a chance to define it a a spec file. */
3334 save_switch (decoded
->canonical_option
[0],
3335 decoded
->canonical_option_num_elements
- 1,
3336 &decoded
->canonical_option
[1], false, false);
3343 /* Handle an option DECODED that is not marked as CL_DRIVER.
3344 LANG_MASK will always be CL_DRIVER. */
3347 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3348 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3350 /* At this point, non-driver options are accepted (and expected to
3351 be passed down by specs) unless marked to be rejected by the
3352 driver. Options to be rejected by the driver but accepted by the
3353 compilers proper are treated just like completely unknown
3355 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3357 if (option
->cl_reject_driver
)
3358 error ("unrecognized command line option %qs",
3359 decoded
->orig_option_with_args_text
);
3361 save_switch (decoded
->canonical_option
[0],
3362 decoded
->canonical_option_num_elements
- 1,
3363 &decoded
->canonical_option
[1], false, true);
3366 static const char *spec_lang
= 0;
3367 static int last_language_n_infiles
;
3369 /* Parse -foffload option argument. */
3372 handle_foffload_option (const char *arg
)
3374 const char *c
, *cur
, *n
, *next
, *end
;
3377 /* If option argument starts with '-' then no target is specified and we
3378 do not need to parse it. */
3382 end
= strchr (arg
, '=');
3384 end
= strchr (arg
, '\0');
3389 next
= strchr (cur
, ',');
3392 next
= (next
> end
) ? end
: next
;
3394 target
= XNEWVEC (char, next
- cur
+ 1);
3395 memcpy (target
, cur
, next
- cur
);
3396 target
[next
- cur
] = '\0';
3398 /* If 'disable' is passed to the option, stop parsing the option and clean
3399 the list of offload targets. */
3400 if (strcmp (target
, "disable") == 0)
3402 free (offload_targets
);
3403 offload_targets
= xstrdup ("");
3407 /* Check that GCC is configured to support the offload target. */
3408 c
= OFFLOAD_TARGETS
;
3411 n
= strchr (c
, ',');
3413 n
= strchr (c
, '\0');
3415 if (next
- cur
== n
- c
&& strncmp (target
, c
, n
- c
) == 0)
3418 c
= *n
? n
+ 1 : NULL
;
3422 fatal_error ("GCC is not configured to support %s as offload target",
3425 if (!offload_targets
)
3427 offload_targets
= target
;
3432 /* Check that the target hasn't already presented in the list. */
3433 c
= offload_targets
;
3436 n
= strchr (c
, ':');
3438 n
= strchr (c
, '\0');
3440 if (next
- cur
== n
- c
&& strncmp (c
, target
, n
- c
) == 0)
3447 /* If duplicate is not found, append the target to the list. */
3450 size_t offload_targets_len
= strlen (offload_targets
);
3452 = XRESIZEVEC (char, offload_targets
,
3453 offload_targets_len
+ next
- cur
+ 2);
3454 if (offload_targets_len
)
3455 offload_targets
[offload_targets_len
++] = ':';
3456 memcpy (offload_targets
+ offload_targets_len
, target
, next
- cur
);
3461 XDELETEVEC (target
);
3465 /* Handle a driver option; arguments and return value as for
3469 driver_handle_option (struct gcc_options
*opts
,
3470 struct gcc_options
*opts_set
,
3471 const struct cl_decoded_option
*decoded
,
3472 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
3474 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
,
3475 diagnostic_context
*dc
)
3477 size_t opt_index
= decoded
->opt_index
;
3478 const char *arg
= decoded
->arg
;
3479 const char *compare_debug_replacement_opt
;
3480 int value
= decoded
->value
;
3481 bool validated
= false;
3482 bool do_save
= true;
3484 gcc_assert (opts
== &global_options
);
3485 gcc_assert (opts_set
== &global_options_set
);
3486 gcc_assert (kind
== DK_UNSPECIFIED
);
3487 gcc_assert (loc
== UNKNOWN_LOCATION
);
3488 gcc_assert (dc
== global_dc
);
3494 struct spec_list
*sl
;
3496 for (sl
= specs
; sl
; sl
= sl
->next
)
3497 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3498 if (link_command_spec
)
3499 printf ("*link_command:\n%s\n\n", link_command_spec
);
3503 case OPT_dumpversion
:
3504 printf ("%s\n", spec_version
);
3507 case OPT_dumpmachine
:
3508 printf ("%s\n", spec_machine
);
3514 /* CPP driver cannot obtain switch from cc1_options. */
3516 add_preprocessor_option ("--version", strlen ("--version"));
3517 add_assembler_option ("--version", strlen ("--version"));
3518 add_linker_option ("--version", strlen ("--version"));
3522 print_help_list
= 1;
3524 /* CPP driver cannot obtain switch from cc1_options. */
3526 add_preprocessor_option ("--help", 6);
3527 add_assembler_option ("--help", 6);
3528 add_linker_option ("--help", 6);
3532 print_subprocess_help
= 2;
3535 case OPT__target_help
:
3536 print_subprocess_help
= 1;
3538 /* CPP driver cannot obtain switch from cc1_options. */
3540 add_preprocessor_option ("--target-help", 13);
3541 add_assembler_option ("--target-help", 13);
3542 add_linker_option ("--target-help", 13);
3545 case OPT__no_sysroot_suffix
:
3546 case OPT_pass_exit_codes
:
3547 case OPT_print_search_dirs
:
3548 case OPT_print_file_name_
:
3549 case OPT_print_prog_name_
:
3550 case OPT_print_multi_lib
:
3551 case OPT_print_multi_directory
:
3552 case OPT_print_sysroot
:
3553 case OPT_print_multi_os_directory
:
3554 case OPT_print_multiarch
:
3555 case OPT_print_sysroot_headers_suffix
:
3558 /* These options set the variables specified in common.opt
3559 automatically, and do not need to be saved for spec
3564 case OPT_print_libgcc_file_name
:
3565 print_file_name
= "libgcc.a";
3569 case OPT_fuse_ld_bfd
:
3573 case OPT_fuse_ld_gold
:
3577 case OPT_fcompare_debug_second
:
3578 compare_debug_second
= 1;
3581 case OPT_fcompare_debug
:
3585 compare_debug_replacement_opt
= "-fcompare-debug=";
3587 goto compare_debug_with_arg
;
3590 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
3592 goto compare_debug_with_arg
;
3599 case OPT_fcompare_debug_
:
3600 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
3601 compare_debug_with_arg
:
3602 gcc_assert (decoded
->canonical_option_num_elements
== 1);
3603 gcc_assert (arg
!= NULL
);
3608 if (compare_debug
< 0)
3609 compare_debug_opt
= NULL
;
3611 compare_debug_opt
= arg
;
3612 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
, true);
3615 case OPT_fdiagnostics_color_
:
3616 diagnostic_color_init (dc
, value
);
3622 /* Pass the rest of this option to the assembler. */
3624 /* Split the argument at commas. */
3626 for (j
= 0; arg
[j
]; j
++)
3629 add_assembler_option (arg
+ prev
, j
- prev
);
3633 /* Record the part after the last comma. */
3634 add_assembler_option (arg
+ prev
, j
- prev
);
3642 /* Pass the rest of this option to the preprocessor. */
3644 /* Split the argument at commas. */
3646 for (j
= 0; arg
[j
]; j
++)
3649 add_preprocessor_option (arg
+ prev
, j
- prev
);
3653 /* Record the part after the last comma. */
3654 add_preprocessor_option (arg
+ prev
, j
- prev
);
3662 /* Split the argument at commas. */
3664 for (j
= 0; arg
[j
]; j
++)
3667 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
3670 /* Record the part after the last comma. */
3671 add_infile (arg
+ prev
, "*");
3677 add_infile (arg
, "*");
3681 case OPT_Xpreprocessor
:
3682 add_preprocessor_option (arg
, strlen (arg
));
3686 case OPT_Xassembler
:
3687 add_assembler_option (arg
, strlen (arg
));
3692 /* POSIX allows separation of -l and the lib arg; canonicalize
3693 by concatenating -l with its arg */
3694 add_infile (concat ("-l", arg
, NULL
), "*");
3699 /* Similarly, canonicalize -L for linkers that may not accept
3700 separate arguments. */
3701 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
, true);
3706 save_switch (concat ("-F", arg
, NULL
), 0, NULL
, validated
, true);
3709 case OPT_save_temps
:
3710 save_temps_flag
= SAVE_TEMPS_CWD
;
3714 case OPT_save_temps_
:
3715 if (strcmp (arg
, "cwd") == 0)
3716 save_temps_flag
= SAVE_TEMPS_CWD
;
3717 else if (strcmp (arg
, "obj") == 0
3718 || strcmp (arg
, "object") == 0)
3719 save_temps_flag
= SAVE_TEMPS_OBJ
;
3721 fatal_error ("%qs is an unknown -save-temps option",
3722 decoded
->orig_option_with_args_text
);
3725 case OPT_no_canonical_prefixes
:
3726 /* Already handled as a special case, so ignored here. */
3732 /* These options set the variables specified in common.opt
3733 automatically, but do need to be saved for spec
3739 struct user_specs
*user
= XNEW (struct user_specs
);
3741 user
->next
= (struct user_specs
*) 0;
3742 user
->filename
= arg
;
3743 if (user_specs_tail
)
3744 user_specs_tail
->next
= user
;
3746 user_specs_head
= user
;
3747 user_specs_tail
= user
;
3753 target_system_root
= arg
;
3754 target_system_root_changed
= 1;
3759 if (report_times_to_file
)
3760 fclose (report_times_to_file
);
3761 report_times_to_file
= fopen (arg
, "a");
3767 This is similar to -v except that there is no execution
3768 of the commands and the echoed arguments are quoted. It
3769 is intended for use in shell scripts to capture the
3770 driver-generated command line. */
3771 verbose_only_flag
++;
3778 size_t len
= strlen (arg
);
3780 /* Catch the case where the user has forgotten to append a
3781 directory separator to the path. Note, they may be using
3782 -B to add an executable name prefix, eg "i386-elf-", in
3783 order to distinguish between multiple installations of
3784 GCC in the same directory. Hence we must check to see
3785 if appending a directory separator actually makes a
3786 valid directory name. */
3787 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
3788 && is_directory (arg
, false))
3790 char *tmp
= XNEWVEC (char, len
+ 2);
3792 tmp
[len
] = DIR_SEPARATOR
;
3797 add_prefix (&exec_prefixes
, arg
, NULL
,
3798 PREFIX_PRIORITY_B_OPT
, 0, 0);
3799 add_prefix (&startfile_prefixes
, arg
, NULL
,
3800 PREFIX_PRIORITY_B_OPT
, 0, 0);
3801 add_prefix (&include_prefixes
, arg
, NULL
,
3802 PREFIX_PRIORITY_B_OPT
, 0, 0);
3809 if (!strcmp (spec_lang
, "none"))
3810 /* Suppress the warning if -xnone comes after the last input
3811 file, because alternate command interfaces like g++ might
3812 find it useful to place -xnone after each input file. */
3815 last_language_n_infiles
= n_infiles
;
3821 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3822 arg
= convert_filename (arg
, ! have_c
, 0);
3825 /* Save the output name in case -save-temps=obj was used. */
3826 save_temps_prefix
= xstrdup (arg
);
3827 /* On some systems, ld cannot handle "-o" without a space. So
3828 split the option from its argument. */
3829 save_switch ("-o", 1, &arg
, validated
, true);
3832 case OPT_static_libgcc
:
3833 case OPT_shared_libgcc
:
3834 case OPT_static_libgfortran
:
3835 case OPT_static_libstdc__
:
3836 /* These are always valid, since gcc.c itself understands the
3837 first two, gfortranspec.c understands -static-libgfortran and
3838 g++spec.c understands -static-libstdc++ */
3847 handle_foffload_option (arg
);
3851 /* Various driver options need no special processing at this
3852 point, having been handled in a prescan above or being
3853 handled by specs. */
3858 save_switch (decoded
->canonical_option
[0],
3859 decoded
->canonical_option_num_elements
- 1,
3860 &decoded
->canonical_option
[1], validated
, true);
3864 /* Put the driver's standard set of option handlers in *HANDLERS. */
3867 set_option_handlers (struct cl_option_handlers
*handlers
)
3869 handlers
->unknown_option_callback
= driver_unknown_option_callback
;
3870 handlers
->wrong_lang_callback
= driver_wrong_lang_callback
;
3871 handlers
->num_handlers
= 3;
3872 handlers
->handlers
[0].handler
= driver_handle_option
;
3873 handlers
->handlers
[0].mask
= CL_DRIVER
;
3874 handlers
->handlers
[1].handler
= common_handle_option
;
3875 handlers
->handlers
[1].mask
= CL_COMMON
;
3876 handlers
->handlers
[2].handler
= target_handle_option
;
3877 handlers
->handlers
[2].mask
= CL_TARGET
;
3880 /* Create the vector `switches' and its contents.
3881 Store its length in `n_switches'. */
3884 process_command (unsigned int decoded_options_count
,
3885 struct cl_decoded_option
*decoded_options
)
3889 char *tooldir_prefix
, *tooldir_prefix2
;
3890 char *(*get_relative_prefix
) (const char *, const char *,
3891 const char *) = NULL
;
3892 struct cl_option_handlers handlers
;
3895 gcc_exec_prefix
= getenv ("GCC_EXEC_PREFIX");
3899 added_libraries
= 0;
3901 /* Figure compiler version from version string. */
3903 compiler_version
= temp1
= xstrdup (version_string
);
3905 for (; *temp1
; ++temp1
)
3914 /* Handle any -no-canonical-prefixes flag early, to assign the function
3915 that builds relative prefixes. This function creates default search
3916 paths that are needed later in normal option handling. */
3918 for (j
= 1; j
< decoded_options_count
; j
++)
3920 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
3922 get_relative_prefix
= make_relative_prefix_ignore_links
;
3926 if (! get_relative_prefix
)
3927 get_relative_prefix
= make_relative_prefix
;
3929 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3930 see if we can create it from the pathname specified in
3931 decoded_options[0].arg. */
3933 gcc_libexec_prefix
= standard_libexec_prefix
;
3935 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3936 if (!gcc_exec_prefix
)
3938 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3939 standard_bindir_prefix
,
3940 standard_exec_prefix
);
3941 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3942 standard_bindir_prefix
,
3943 standard_libexec_prefix
);
3944 if (gcc_exec_prefix
)
3945 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3949 /* make_relative_prefix requires a program name, but
3950 GCC_EXEC_PREFIX is typically a directory name with a trailing
3951 / (which is ignored by make_relative_prefix), so append a
3953 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3954 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
3955 standard_exec_prefix
,
3956 standard_libexec_prefix
);
3958 /* The path is unrelocated, so fallback to the original setting. */
3959 if (!gcc_libexec_prefix
)
3960 gcc_libexec_prefix
= standard_libexec_prefix
;
3966 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3967 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3968 or an automatically created GCC_EXEC_PREFIX from
3969 decoded_options[0].arg. */
3971 /* Do language-specific adjustment/addition of flags. */
3972 lang_specific_driver (&decoded_options
, &decoded_options_count
,
3975 if (gcc_exec_prefix
)
3977 int len
= strlen (gcc_exec_prefix
);
3979 if (len
> (int) sizeof ("/lib/gcc/") - 1
3980 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3982 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3983 if (IS_DIR_SEPARATOR (*temp
)
3984 && filename_ncmp (temp
+ 1, "lib", 3) == 0
3985 && IS_DIR_SEPARATOR (temp
[4])
3986 && filename_ncmp (temp
+ 5, "gcc", 3) == 0)
3987 len
-= sizeof ("/lib/gcc/") - 1;
3990 set_std_prefix (gcc_exec_prefix
, len
);
3991 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3992 PREFIX_PRIORITY_LAST
, 0, 0);
3993 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3994 PREFIX_PRIORITY_LAST
, 0, 0);
3997 /* COMPILER_PATH and LIBRARY_PATH have values
3998 that are lists of directory names with colons. */
4000 temp
= getenv ("COMPILER_PATH");
4003 const char *startp
, *endp
;
4004 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4006 startp
= endp
= temp
;
4009 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4011 strncpy (nstore
, startp
, endp
- startp
);
4013 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4014 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4016 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4017 nstore
[endp
- startp
+ 1] = 0;
4020 nstore
[endp
- startp
] = 0;
4021 add_prefix (&exec_prefixes
, nstore
, 0,
4022 PREFIX_PRIORITY_LAST
, 0, 0);
4023 add_prefix (&include_prefixes
, nstore
, 0,
4024 PREFIX_PRIORITY_LAST
, 0, 0);
4027 endp
= startp
= endp
+ 1;
4034 temp
= getenv (LIBRARY_PATH_ENV
);
4035 if (temp
&& *cross_compile
== '0')
4037 const char *startp
, *endp
;
4038 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4040 startp
= endp
= temp
;
4043 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4045 strncpy (nstore
, startp
, endp
- startp
);
4047 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4048 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4050 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4051 nstore
[endp
- startp
+ 1] = 0;
4054 nstore
[endp
- startp
] = 0;
4055 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4056 PREFIX_PRIORITY_LAST
, 0, 1);
4059 endp
= startp
= endp
+ 1;
4066 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
4067 temp
= getenv ("LPATH");
4068 if (temp
&& *cross_compile
== '0')
4070 const char *startp
, *endp
;
4071 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4073 startp
= endp
= temp
;
4076 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4078 strncpy (nstore
, startp
, endp
- startp
);
4080 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4081 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4083 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4084 nstore
[endp
- startp
+ 1] = 0;
4087 nstore
[endp
- startp
] = 0;
4088 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4089 PREFIX_PRIORITY_LAST
, 0, 1);
4092 endp
= startp
= endp
+ 1;
4099 /* Process the options and store input files and switches in their
4102 last_language_n_infiles
= -1;
4104 set_option_handlers (&handlers
);
4106 for (j
= 1; j
< decoded_options_count
; j
++)
4108 switch (decoded_options
[j
].opt_index
)
4120 for (j
= 1; j
< decoded_options_count
; j
++)
4122 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
4124 const char *arg
= decoded_options
[j
].arg
;
4125 const char *p
= strrchr (arg
, '@');
4129 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4130 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
4132 /* For LTO static archive support we handle input file
4133 specifications that are composed of a filename and
4134 an offset like FNAME@OFFSET. */
4137 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
4138 && strlen (p
) == (unsigned int)consumed
)
4140 fname
= (char *)xmalloc (p
- arg
+ 1);
4141 memcpy (fname
, arg
, p
- arg
);
4142 fname
[p
- arg
] = '\0';
4143 /* Only accept non-stdin and existing FNAME parts, otherwise
4144 try with the full name. */
4145 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
4148 fname
= xstrdup (arg
);
4152 fname
= xstrdup (arg
);
4154 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
4155 perror_with_name (fname
);
4157 add_infile (arg
, spec_lang
);
4163 read_cmdline_option (&global_options
, &global_options_set
,
4164 decoded_options
+ j
, UNKNOWN_LOCATION
,
4165 CL_DRIVER
, &handlers
, global_dc
);
4169 && strcmp (output_file
, "-") != 0
4170 && strcmp (output_file
, HOST_BIT_BUCKET
) != 0)
4173 for (i
= 0; i
< n_infiles
; i
++)
4174 if ((!infiles
[i
].language
|| infiles
[i
].language
[0] != '*')
4175 && canonical_filename_eq (infiles
[i
].name
, output_file
))
4176 fatal_error ("input file %qs is the same as output file",
4180 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4181 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4182 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
4184 save_temps_length
= strlen (save_temps_prefix
);
4185 temp
= strrchr (lbasename (save_temps_prefix
), '.');
4188 save_temps_length
-= strlen (temp
);
4189 save_temps_prefix
[save_temps_length
] = '\0';
4193 else if (save_temps_prefix
!= NULL
)
4195 free (save_temps_prefix
);
4196 save_temps_prefix
= NULL
;
4199 if (save_temps_flag
&& use_pipes
)
4201 /* -save-temps overrides -pipe, so that temp files are produced */
4202 if (save_temps_flag
)
4203 warning (0, "-pipe ignored because -save-temps specified");
4209 const char *gcd
= getenv ("GCC_COMPARE_DEBUG");
4211 if (gcd
&& gcd
[0] == '-')
4214 compare_debug_opt
= gcd
;
4216 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
4219 compare_debug_opt
= "-gtoggle";
4222 else if (compare_debug
< 0)
4225 gcc_assert (!compare_debug_opt
);
4228 /* Set up the search paths. We add directories that we expect to
4229 contain GNU Toolchain components before directories specified by
4230 the machine description so that we will find GNU components (like
4231 the GNU assembler) before those of the host system. */
4233 /* If we don't know where the toolchain has been installed, use the
4234 configured-in locations. */
4235 if (!gcc_exec_prefix
)
4238 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4239 PREFIX_PRIORITY_LAST
, 1, 0);
4240 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4241 PREFIX_PRIORITY_LAST
, 2, 0);
4242 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4243 PREFIX_PRIORITY_LAST
, 2, 0);
4245 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4246 PREFIX_PRIORITY_LAST
, 1, 0);
4249 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4250 tooldir_prefix2
= concat (tooldir_base_prefix
, spec_host_machine
,
4251 dir_separator_str
, NULL
);
4253 /* Look for tools relative to the location from which the driver is
4254 running, or, if that is not available, the configured prefix. */
4256 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4257 spec_host_machine
, dir_separator_str
, spec_version
,
4258 accel_dir_suffix
, dir_separator_str
, tooldir_prefix2
, NULL
);
4259 free (tooldir_prefix2
);
4261 add_prefix (&exec_prefixes
,
4262 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4263 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4264 add_prefix (&startfile_prefixes
,
4265 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4266 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4267 free (tooldir_prefix
);
4269 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4270 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4271 then consider it to relocate with the rest of the GCC installation
4272 if GCC_EXEC_PREFIX is set.
4273 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4274 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
4276 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4277 standard_bindir_prefix
,
4278 target_system_root
);
4279 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4281 target_system_root
= tmp_prefix
;
4282 target_system_root_changed
= 1;
4287 /* More prefixes are enabled in main, after we read the specs file
4288 and determine whether this is cross-compilation or not. */
4290 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4291 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
4293 /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG
4294 environment variable. */
4295 if (compare_debug
== 2 || compare_debug
== 3)
4297 const char *opt
= concat ("-fcompare-debug=", compare_debug_opt
, NULL
);
4298 save_switch (opt
, 0, NULL
, false, true);
4302 /* Ensure we only invoke each subprocess once. */
4303 if (print_subprocess_help
|| print_help_list
|| print_version
)
4307 /* Create a dummy input file, so that we can pass
4308 the help option on to the various sub-processes. */
4309 add_infile ("help-dummy", "c");
4313 switches
[n_switches
].part1
= 0;
4315 infiles
[n_infiles
].name
= 0;
4318 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4319 and place that in the environment. */
4322 set_collect_gcc_options (void)
4327 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4329 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4330 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4333 for (i
= 0; (int) i
< n_switches
; i
++)
4335 const char *const *args
;
4338 obstack_grow (&collect_obstack
, " ", 1);
4342 /* Ignore elided switches. */
4343 if ((switches
[i
].live_cond
4344 & (SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
))
4348 obstack_grow (&collect_obstack
, "'-", 2);
4349 q
= switches
[i
].part1
;
4350 while ((p
= strchr (q
, '\'')))
4352 obstack_grow (&collect_obstack
, q
, p
- q
);
4353 obstack_grow (&collect_obstack
, "'\\''", 4);
4356 obstack_grow (&collect_obstack
, q
, strlen (q
));
4357 obstack_grow (&collect_obstack
, "'", 1);
4359 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4361 obstack_grow (&collect_obstack
, " '", 2);
4363 while ((p
= strchr (q
, '\'')))
4365 obstack_grow (&collect_obstack
, q
, p
- q
);
4366 obstack_grow (&collect_obstack
, "'\\''", 4);
4369 obstack_grow (&collect_obstack
, q
, strlen (q
));
4370 obstack_grow (&collect_obstack
, "'", 1);
4373 obstack_grow (&collect_obstack
, "\0", 1);
4374 xputenv (XOBFINISH (&collect_obstack
, char *));
4377 /* Process a spec string, accumulating and running commands. */
4379 /* These variables describe the input file name.
4380 input_file_number is the index on outfiles of this file,
4381 so that the output file name can be stored for later use by %o.
4382 input_basename is the start of the part of the input file
4383 sans all directory names, and basename_length is the number
4384 of characters starting there excluding the suffix .c or whatever. */
4386 static const char *gcc_input_filename
;
4387 static int input_file_number
;
4388 size_t input_filename_length
;
4389 static int basename_length
;
4390 static int suffixed_basename_length
;
4391 static const char *input_basename
;
4392 static const char *input_suffix
;
4393 #ifndef HOST_LACKS_INODE_NUMBERS
4394 static struct stat input_stat
;
4396 static int input_stat_set
;
4398 /* The compiler used to process the current input file. */
4399 static struct compiler
*input_file_compiler
;
4401 /* These are variables used within do_spec and do_spec_1. */
4403 /* Nonzero if an arg has been started and not yet terminated
4404 (with space, tab or newline). */
4405 static int arg_going
;
4407 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4408 is a temporary file name. */
4409 static int delete_this_arg
;
4411 /* Nonzero means %w has been seen; the next arg to be terminated
4412 is the output file name of this compilation. */
4413 static int this_is_output_file
;
4415 /* Nonzero means %s has been seen; the next arg to be terminated
4416 is the name of a library file and we should try the standard
4417 search dirs for it. */
4418 static int this_is_library_file
;
4420 /* Nonzero means %T has been seen; the next arg to be terminated
4421 is the name of a linker script and we should try all of the
4422 standard search dirs for it. If it is found insert a --script
4423 command line switch and then substitute the full path in place,
4424 otherwise generate an error message. */
4425 static int this_is_linker_script
;
4427 /* Nonzero means that the input of this command is coming from a pipe. */
4428 static int input_from_pipe
;
4430 /* Nonnull means substitute this for any suffix when outputting a switches
4432 static const char *suffix_subst
;
4434 /* If there is an argument being accumulated, terminate it and store it. */
4437 end_going_arg (void)
4443 obstack_1grow (&obstack
, 0);
4444 string
= XOBFINISH (&obstack
, const char *);
4445 if (this_is_library_file
)
4446 string
= find_file (string
);
4447 if (this_is_linker_script
)
4449 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4451 if (full_script_path
== NULL
)
4453 error ("unable to locate default linker script %qs in the library search paths", string
);
4454 /* Script was not found on search path. */
4457 store_arg ("--script", false, false);
4458 string
= full_script_path
;
4460 store_arg (string
, delete_this_arg
, this_is_output_file
);
4461 if (this_is_output_file
)
4462 outfiles
[input_file_number
] = string
;
4468 /* Parse the WRAPPER string which is a comma separated list of the command line
4469 and insert them into the beginning of argbuf. */
4472 insert_wrapper (const char *wrapper
)
4476 char *buf
= xstrdup (wrapper
);
4478 unsigned int old_length
= argbuf
.length ();
4486 while ((p
= strchr (p
, ',')) != NULL
);
4488 argbuf
.safe_grow (old_length
+ n
);
4489 memmove (argbuf
.address () + n
,
4491 old_length
* sizeof (const_char_p
));
4505 while ((p
= strchr (p
, ',')) != NULL
);
4506 gcc_assert (i
== n
);
4509 /* Process the spec SPEC and run the commands specified therein.
4510 Returns 0 if the spec is successfully processed; -1 if failed. */
4513 do_spec (const char *spec
)
4517 value
= do_spec_2 (spec
);
4519 /* Force out any unfinished command.
4520 If -pipe, this forces out the last command if it ended in `|'. */
4523 if (argbuf
.length () > 0
4524 && !strcmp (argbuf
.last (), "|"))
4527 set_collect_gcc_options ();
4529 if (argbuf
.length () > 0)
4537 do_spec_2 (const char *spec
)
4543 delete_this_arg
= 0;
4544 this_is_output_file
= 0;
4545 this_is_library_file
= 0;
4546 this_is_linker_script
= 0;
4547 input_from_pipe
= 0;
4548 suffix_subst
= NULL
;
4550 result
= do_spec_1 (spec
, 0, NULL
);
4558 /* Process the given spec string and add any new options to the end
4559 of the switches/n_switches array. */
4562 do_option_spec (const char *name
, const char *spec
)
4564 unsigned int i
, value_count
, value_len
;
4565 const char *p
, *q
, *value
;
4566 char *tmp_spec
, *tmp_spec_p
;
4568 if (configure_default_options
[0].name
== NULL
)
4571 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4572 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4574 if (i
== ARRAY_SIZE (configure_default_options
))
4577 value
= configure_default_options
[i
].value
;
4578 value_len
= strlen (value
);
4580 /* Compute the size of the final spec. */
4583 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4589 /* Replace each %(VALUE) by the specified value. */
4590 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4591 + value_count
* (value_len
- strlen ("%(VALUE)")));
4592 tmp_spec_p
= tmp_spec
;
4594 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4596 memcpy (tmp_spec_p
, q
, p
- q
);
4597 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4598 memcpy (tmp_spec_p
, value
, value_len
);
4599 tmp_spec_p
+= value_len
;
4600 q
= p
+ strlen ("%(VALUE)");
4602 strcpy (tmp_spec_p
, q
);
4604 do_self_spec (tmp_spec
);
4607 /* Process the given spec string and add any new options to the end
4608 of the switches/n_switches array. */
4611 do_self_spec (const char *spec
)
4616 do_spec_1 (" ", 0, NULL
);
4618 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
4619 do_self_specs adds the replacements to switches array, so it shouldn't
4620 be processed afterwards. */
4621 for (i
= 0; i
< n_switches
; i
++)
4622 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
4623 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
4625 if (argbuf
.length () > 0)
4627 const char **argbuf_copy
;
4628 struct cl_decoded_option
*decoded_options
;
4629 struct cl_option_handlers handlers
;
4630 unsigned int decoded_options_count
;
4633 /* Create a copy of argbuf with a dummy argv[0] entry for
4634 decode_cmdline_options_to_array. */
4635 argbuf_copy
= XNEWVEC (const char *,
4636 argbuf
.length () + 1);
4637 argbuf_copy
[0] = "";
4638 memcpy (argbuf_copy
+ 1, argbuf
.address (),
4639 argbuf
.length () * sizeof (const char *));
4641 decode_cmdline_options_to_array (argbuf
.length () + 1,
4643 CL_DRIVER
, &decoded_options
,
4644 &decoded_options_count
);
4647 set_option_handlers (&handlers
);
4649 for (j
= 1; j
< decoded_options_count
; j
++)
4651 switch (decoded_options
[j
].opt_index
)
4653 case OPT_SPECIAL_input_file
:
4654 /* Specs should only generate options, not input
4656 if (strcmp (decoded_options
[j
].arg
, "-") != 0)
4657 fatal_error ("switch %qs does not start with %<-%>",
4658 decoded_options
[j
].arg
);
4660 fatal_error ("spec-generated switch is just %<-%>");
4663 case OPT_fcompare_debug_second
:
4664 case OPT_fcompare_debug
:
4665 case OPT_fcompare_debug_
:
4667 /* Avoid duplicate processing of some options from
4668 compare-debug specs; just save them here. */
4669 save_switch (decoded_options
[j
].canonical_option
[0],
4670 (decoded_options
[j
].canonical_option_num_elements
4672 &decoded_options
[j
].canonical_option
[1], false, true);
4676 read_cmdline_option (&global_options
, &global_options_set
,
4677 decoded_options
+ j
, UNKNOWN_LOCATION
,
4678 CL_DRIVER
, &handlers
, global_dc
);
4684 switches
[n_switches
].part1
= 0;
4688 /* Callback for processing %D and %I specs. */
4690 struct spec_path_info
{
4695 bool separate_options
;
4699 spec_path (char *path
, void *data
)
4701 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
4705 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4708 if (info
->append_len
!= 0)
4710 len
= strlen (path
);
4711 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4714 if (!is_directory (path
, true))
4717 do_spec_1 (info
->option
, 1, NULL
);
4718 if (info
->separate_options
)
4719 do_spec_1 (" ", 0, NULL
);
4721 if (info
->append_len
== 0)
4723 len
= strlen (path
);
4724 save
= path
[len
- 1];
4725 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4726 path
[len
- 1] = '\0';
4729 do_spec_1 (path
, 1, NULL
);
4730 do_spec_1 (" ", 0, NULL
);
4732 /* Must not damage the original path. */
4733 if (info
->append_len
== 0)
4734 path
[len
- 1] = save
;
4739 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
4743 create_at_file (char **argv
)
4745 char *temp_file
= make_temp_file ("");
4746 char *at_argument
= concat ("@", temp_file
, NULL
);
4747 FILE *f
= fopen (temp_file
, "w");
4751 fatal_error ("could not open temporary response file %s",
4754 status
= writeargv (argv
, f
);
4757 fatal_error ("could not write to temporary response file %s",
4760 status
= fclose (f
);
4763 fatal_error ("could not close temporary response file %s",
4766 store_arg (at_argument
, 0, 0);
4768 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
4771 /* True if we should compile INFILE. */
4774 compile_input_file_p (struct infile
*infile
)
4776 if ((!infile
->language
) || (infile
->language
[0] != '*'))
4777 if (infile
->incompiler
== input_file_compiler
)
4782 /* Process each member of VEC as a spec. */
4785 do_specs_vec (vec
<char_p
> vec
)
4790 FOR_EACH_VEC_ELT (vec
, ix
, opt
)
4792 do_spec_1 (opt
, 1, NULL
);
4793 /* Make each accumulated option a separate argument. */
4794 do_spec_1 (" ", 0, NULL
);
4798 /* Process the sub-spec SPEC as a portion of a larger spec.
4799 This is like processing a whole spec except that we do
4800 not initialize at the beginning and we do not supply a
4801 newline by default at the end.
4802 INSWITCH nonzero means don't process %-sequences in SPEC;
4803 in this case, % is treated as an ordinary character.
4804 This is used while substituting switches.
4805 INSWITCH nonzero also causes SPC not to terminate an argument.
4807 Value is zero unless a line was finished
4808 and the command on that line reported an error. */
4811 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4813 const char *p
= spec
;
4818 /* If it's an empty string argument to a switch, keep it as is. */
4819 if (inswitch
&& !*p
)
4823 /* If substituting a switch, treat all chars like letters.
4824 Otherwise, NL, SPC, TAB and % are special. */
4825 switch (inswitch
? 'a' : c
)
4830 if (argbuf
.length () > 0
4831 && !strcmp (argbuf
.last (), "|"))
4833 /* A `|' before the newline means use a pipe here,
4834 but only if -pipe was specified.
4835 Otherwise, execute now and don't pass the `|' as an arg. */
4838 input_from_pipe
= 1;
4845 set_collect_gcc_options ();
4847 if (argbuf
.length () > 0)
4853 /* Reinitialize for a new command, and for a new argument. */
4856 delete_this_arg
= 0;
4857 this_is_output_file
= 0;
4858 this_is_library_file
= 0;
4859 this_is_linker_script
= 0;
4860 input_from_pipe
= 0;
4867 obstack_1grow (&obstack
, c
);
4875 /* Reinitialize for a new argument. */
4876 delete_this_arg
= 0;
4877 this_is_output_file
= 0;
4878 this_is_library_file
= 0;
4879 this_is_linker_script
= 0;
4886 fatal_error ("spec %qs invalid", spec
);
4889 if (save_temps_length
)
4890 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4892 obstack_grow (&obstack
, input_basename
, basename_length
);
4893 if (compare_debug
< 0)
4894 obstack_grow (&obstack
, ".gk", 3);
4899 if (save_temps_length
)
4900 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4902 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4903 if (compare_debug
< 0)
4904 obstack_grow (&obstack
, ".gk", 3);
4909 delete_this_arg
= 2;
4912 /* Dump out the directories specified with LIBRARY_PATH,
4913 followed by the absolute directories
4914 that we search for startfiles. */
4917 struct spec_path_info info
;
4920 info
.append_len
= 0;
4921 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4922 /* Used on systems which record the specified -L dirs
4923 and use them to search for dynamic linking.
4924 Relative directories always come from -B,
4925 and it is better not to use them for searching
4926 at run time. In particular, stage1 loses. */
4927 info
.omit_relative
= true;
4929 info
.omit_relative
= false;
4931 info
.separate_options
= false;
4933 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
4938 /* %efoo means report an error with `foo' as error message
4939 and don't execute any more commands for this file. */
4943 while (*p
!= 0 && *p
!= '\n')
4945 buf
= (char *) alloca (p
- q
+ 1);
4946 strncpy (buf
, q
, p
- q
);
4948 error ("%s", _(buf
));
4953 /* %nfoo means report a notice with `foo' on stderr. */
4957 while (*p
!= 0 && *p
!= '\n')
4959 buf
= (char *) alloca (p
- q
+ 1);
4960 strncpy (buf
, q
, p
- q
);
4962 inform (0, "%s", _(buf
));
4972 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4973 defined, and it is not a directory, and it is
4974 writable, use it. Otherwise, treat this like any
4975 other temporary file. */
4977 if ((!save_temps_flag
)
4978 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4979 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4981 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4982 strlen (HOST_BIT_BUCKET
));
4983 delete_this_arg
= 0;
4988 goto create_temp_file
;
4992 obstack_1grow (&obstack
, '-');
4993 delete_this_arg
= 0;
4996 /* consume suffix */
4997 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4999 if (p
[0] == '%' && p
[1] == 'O')
5004 goto create_temp_file
;
5008 /* consume suffix */
5009 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5011 if (p
[0] == '%' && p
[1] == 'O')
5016 goto create_temp_file
;
5022 struct temp_name
*t
;
5024 const char *suffix
= p
;
5025 char *saved_suffix
= NULL
;
5027 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5029 suffix_length
= p
- suffix
;
5030 if (p
[0] == '%' && p
[1] == 'O')
5033 /* We don't support extra suffix characters after %O. */
5034 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
5035 fatal_error ("spec %qs has invalid %<%%0%c%>", spec
, *p
);
5036 if (suffix_length
== 0)
5037 suffix
= TARGET_OBJECT_SUFFIX
;
5041 = XNEWVEC (char, suffix_length
5042 + strlen (TARGET_OBJECT_SUFFIX
) + 1);
5043 strncpy (saved_suffix
, suffix
, suffix_length
);
5044 strcpy (saved_suffix
+ suffix_length
,
5045 TARGET_OBJECT_SUFFIX
);
5047 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
5050 if (compare_debug
< 0)
5052 suffix
= concat (".gk", suffix
, NULL
);
5056 /* If -save-temps=obj and -o were specified, use that for the
5058 if (save_temps_length
)
5061 temp_filename_length
5062 = save_temps_length
+ suffix_length
+ 1;
5063 tmp
= (char *) alloca (temp_filename_length
);
5064 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
5065 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
5066 tmp
[save_temps_length
+ suffix_length
] = '\0';
5067 temp_filename
= save_string (tmp
, save_temps_length
5069 obstack_grow (&obstack
, temp_filename
,
5070 temp_filename_length
);
5072 delete_this_arg
= 0;
5076 /* If the gcc_input_filename has the same suffix specified
5077 for the %g, %u, or %U, and -save-temps is specified,
5078 we could end up using that file as an intermediate
5079 thus clobbering the user's source file (.e.g.,
5080 gcc -save-temps foo.s would clobber foo.s with the
5081 output of cpp0). So check for this condition and
5082 generate a temp file as the intermediate. */
5084 if (save_temps_flag
)
5087 temp_filename_length
= basename_length
+ suffix_length
+ 1;
5088 tmp
= (char *) alloca (temp_filename_length
);
5089 memcpy (tmp
, input_basename
, basename_length
);
5090 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
5091 tmp
[basename_length
+ suffix_length
] = '\0';
5092 temp_filename
= tmp
;
5094 if (filename_cmp (temp_filename
, gcc_input_filename
) != 0)
5096 #ifndef HOST_LACKS_INODE_NUMBERS
5097 struct stat st_temp
;
5099 /* Note, set_input() resets input_stat_set to 0. */
5100 if (input_stat_set
== 0)
5102 input_stat_set
= stat (gcc_input_filename
,
5104 if (input_stat_set
>= 0)
5108 /* If we have the stat for the gcc_input_filename
5109 and we can do the stat for the temp_filename
5110 then the they could still refer to the same
5111 file if st_dev/st_ino's are the same. */
5112 if (input_stat_set
!= 1
5113 || stat (temp_filename
, &st_temp
) < 0
5114 || input_stat
.st_dev
!= st_temp
.st_dev
5115 || input_stat
.st_ino
!= st_temp
.st_ino
)
5117 /* Just compare canonical pathnames. */
5118 char* input_realname
= lrealpath (gcc_input_filename
);
5119 char* temp_realname
= lrealpath (temp_filename
);
5120 bool files_differ
= filename_cmp (input_realname
, temp_realname
);
5121 free (input_realname
);
5122 free (temp_realname
);
5126 temp_filename
= save_string (temp_filename
,
5127 temp_filename_length
+ 1);
5128 obstack_grow (&obstack
, temp_filename
,
5129 temp_filename_length
);
5131 delete_this_arg
= 0;
5137 /* See if we already have an association of %g/%u/%U and
5139 for (t
= temp_names
; t
; t
= t
->next
)
5140 if (t
->length
== suffix_length
5141 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
5142 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
5145 /* Make a new association if needed. %u and %j
5147 if (t
== 0 || c
== 'u' || c
== 'j')
5151 t
= XNEW (struct temp_name
);
5152 t
->next
= temp_names
;
5155 t
->length
= suffix_length
;
5158 t
->suffix
= saved_suffix
;
5159 saved_suffix
= NULL
;
5162 t
->suffix
= save_string (suffix
, suffix_length
);
5163 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
5164 temp_filename
= make_temp_file (t
->suffix
);
5165 temp_filename_length
= strlen (temp_filename
);
5166 t
->filename
= temp_filename
;
5167 t
->filename_length
= temp_filename_length
;
5170 free (saved_suffix
);
5172 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
5173 delete_this_arg
= 1;
5181 if (at_file_supplied
)
5183 /* We are going to expand `%i' to `@FILE', where FILE
5184 is a newly-created temporary filename. The filenames
5185 that would usually be expanded in place of %o will be
5186 written to the temporary file. */
5191 for (i
= 0; i
< n_infiles
; i
++)
5192 if (compile_input_file_p (&infiles
[i
]))
5195 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5197 /* Copy the strings over. */
5198 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
5199 if (compile_input_file_p (&infiles
[i
]))
5201 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
5202 infiles
[i
].compiled
= true;
5207 create_at_file (argv
);
5210 for (i
= 0; (int) i
< n_infiles
; i
++)
5211 if (compile_input_file_p (&infiles
[i
]))
5213 store_arg (infiles
[i
].name
, 0, 0);
5214 infiles
[i
].compiled
= true;
5219 obstack_grow (&obstack
, gcc_input_filename
,
5220 input_filename_length
);
5227 struct spec_path_info info
;
5231 do_spec_1 ("-imultilib", 1, NULL
);
5232 /* Make this a separate argument. */
5233 do_spec_1 (" ", 0, NULL
);
5234 do_spec_1 (multilib_dir
, 1, NULL
);
5235 do_spec_1 (" ", 0, NULL
);
5240 do_spec_1 ("-imultiarch", 1, NULL
);
5241 /* Make this a separate argument. */
5242 do_spec_1 (" ", 0, NULL
);
5243 do_spec_1 (multiarch_dir
, 1, NULL
);
5244 do_spec_1 (" ", 0, NULL
);
5247 if (gcc_exec_prefix
)
5249 do_spec_1 ("-iprefix", 1, NULL
);
5250 /* Make this a separate argument. */
5251 do_spec_1 (" ", 0, NULL
);
5252 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5253 do_spec_1 (" ", 0, NULL
);
5256 if (target_system_root_changed
||
5257 (target_system_root
&& target_sysroot_hdrs_suffix
))
5259 do_spec_1 ("-isysroot", 1, NULL
);
5260 /* Make this a separate argument. */
5261 do_spec_1 (" ", 0, NULL
);
5262 do_spec_1 (target_system_root
, 1, NULL
);
5263 if (target_sysroot_hdrs_suffix
)
5264 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5265 do_spec_1 (" ", 0, NULL
);
5268 info
.option
= "-isystem";
5269 info
.append
= "include";
5270 info
.append_len
= strlen (info
.append
);
5271 info
.omit_relative
= false;
5272 info
.separate_options
= true;
5274 for_each_path (&include_prefixes
, false, info
.append_len
,
5277 info
.append
= "include-fixed";
5278 if (*sysroot_hdrs_suffix_spec
)
5279 info
.append
= concat (info
.append
, dir_separator_str
,
5280 multilib_dir
, NULL
);
5281 info
.append_len
= strlen (info
.append
);
5282 for_each_path (&include_prefixes
, false, info
.append_len
,
5289 int max
= n_infiles
;
5290 max
+= lang_specific_extra_outfiles
;
5292 if (HAVE_GNU_LD
&& at_file_supplied
)
5294 /* We are going to expand `%o' to `@FILE', where FILE
5295 is a newly-created temporary filename. The filenames
5296 that would usually be expanded in place of %o will be
5297 written to the temporary file. */
5302 /* Convert OUTFILES into a form suitable for writeargv. */
5304 /* Determine how many are non-NULL. */
5305 for (n_files
= 0, i
= 0; i
< max
; i
++)
5306 n_files
+= outfiles
[i
] != NULL
;
5308 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5310 /* Copy the strings over. */
5311 for (i
= 0, j
= 0; i
< max
; i
++)
5314 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5319 create_at_file (argv
);
5322 for (i
= 0; i
< max
; i
++)
5324 store_arg (outfiles
[i
], 0, 0);
5329 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5334 this_is_library_file
= 1;
5338 this_is_linker_script
= 1;
5342 outfiles
[input_file_number
] = NULL
;
5346 this_is_output_file
= 1;
5351 unsigned int cur_index
= argbuf
.length ();
5352 /* Handle the {...} following the %W. */
5354 fatal_error ("spec %qs has invalid %<%%W%c%>", spec
, *p
);
5355 p
= handle_braces (p
+ 1);
5359 /* If any args were output, mark the last one for deletion
5361 if (argbuf
.length () != cur_index
)
5362 record_temp_file (argbuf
.last (), 0, 1);
5366 /* %x{OPTION} records OPTION for %X to output. */
5374 /* Skip past the option value and make a copy. */
5376 fatal_error ("spec %qs has invalid %<%%x%c%>", spec
, *p
);
5379 string
= save_string (p1
+ 1, p
- p1
- 2);
5381 /* See if we already recorded this option. */
5382 FOR_EACH_VEC_ELT (linker_options
, ix
, opt
)
5383 if (! strcmp (string
, opt
))
5389 /* This option is new; add it. */
5390 add_linker_option (string
, strlen (string
));
5395 /* Dump out the options accumulated previously using %x. */
5397 do_specs_vec (linker_options
);
5400 /* Dump out the options accumulated previously using -Wa,. */
5402 do_specs_vec (assembler_options
);
5405 /* Dump out the options accumulated previously using -Wp,. */
5407 do_specs_vec (preprocessor_options
);
5410 /* Here are digits and numbers that just process
5411 a certain constant string as a spec. */
5414 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5420 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5426 value
= do_spec_1 (asm_spec
, 0, NULL
);
5432 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5439 const char *const spec
5440 = (input_file_compiler
->cpp_spec
5441 ? input_file_compiler
->cpp_spec
5443 value
= do_spec_1 (spec
, 0, NULL
);
5450 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5456 value
= do_spec_1 (link_spec
, 0, NULL
);
5462 value
= do_spec_1 (lib_spec
, 0, NULL
);
5468 if (multilib_os_dir
== NULL
)
5469 obstack_1grow (&obstack
, '.');
5471 obstack_grow (&obstack
, multilib_os_dir
,
5472 strlen (multilib_os_dir
));
5476 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5482 /* We assume there is a directory
5483 separator at the end of this string. */
5484 if (target_system_root
)
5486 obstack_grow (&obstack
, target_system_root
,
5487 strlen (target_system_root
));
5488 if (target_sysroot_suffix
)
5489 obstack_grow (&obstack
, target_sysroot_suffix
,
5490 strlen (target_sysroot_suffix
));
5495 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5500 /* Here we define characters other than letters and digits. */
5503 p
= handle_braces (p
);
5509 p
= handle_spec_function (p
, NULL
);
5515 obstack_1grow (&obstack
, '%');
5522 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5524 suffix_subst
= save_string (p
- 1, len
+ 1);
5529 /* Henceforth ignore the option(s) matching the pattern
5535 int have_wildcard
= 0;
5540 switch_option
= SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
;
5542 switch_option
= SWITCH_IGNORE
;
5544 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5547 if (p
[len
-1] == '*')
5550 for (i
= 0; i
< n_switches
; i
++)
5551 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5552 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5554 switches
[i
].live_cond
|= switch_option
;
5555 /* User switch be validated from validate_all_switches.
5556 when the definition is seen from the spec file.
5557 If not defined anywhere, will be rejected. */
5558 if (switches
[i
].known
)
5559 switches
[i
].validated
= true;
5567 if (soft_matched_part
)
5569 if (soft_matched_part
[0])
5570 do_spec_1 (soft_matched_part
, 1, NULL
);
5571 /* Only insert a space after the substitution if it is at the
5572 end of the current sequence. So if:
5574 "%{foo=*:bar%*}%{foo=*:one%*two}"
5576 matches -foo=hello then it will produce:
5578 barhello onehellotwo
5580 if (*p
== 0 || *p
== '}')
5581 do_spec_1 (" ", 0, NULL
);
5584 /* Catch the case where a spec string contains something like
5585 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5586 hand side of the :. */
5587 error ("spec failure: %<%%*%> has not been initialized by pattern match");
5590 /* Process a string found as the value of a spec given by name.
5591 This feature allows individual machine descriptions
5592 to add and use their own specs. */
5595 const char *name
= p
;
5596 struct spec_list
*sl
;
5599 /* The string after the S/P is the name of a spec that is to be
5601 while (*p
&& *p
!= ')')
5604 /* See if it's in the list. */
5605 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5606 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5608 name
= *(sl
->ptr_spec
);
5610 fnotice (stderr
, "Processing spec (%s), which is '%s'\n",
5618 value
= do_spec_1 (name
, 0, NULL
);
5623 /* Discard the closing paren. */
5630 error ("spec failure: unrecognized spec option %qc", c
);
5636 /* Backslash: treat next character as ordinary. */
5641 /* Ordinary character: put it into the current argument. */
5642 obstack_1grow (&obstack
, c
);
5646 /* End of string. If we are processing a spec function, we need to
5647 end any pending argument. */
5648 if (processing_spec_function
)
5654 /* Look up a spec function. */
5656 static const struct spec_function
*
5657 lookup_spec_function (const char *name
)
5659 const struct spec_function
*sf
;
5661 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5662 if (strcmp (sf
->name
, name
) == 0)
5668 /* Evaluate a spec function. */
5671 eval_spec_function (const char *func
, const char *args
)
5673 const struct spec_function
*sf
;
5674 const char *funcval
;
5676 /* Saved spec processing context. */
5677 vec
<const_char_p
> save_argbuf
;
5680 int save_delete_this_arg
;
5681 int save_this_is_output_file
;
5682 int save_this_is_library_file
;
5683 int save_input_from_pipe
;
5684 int save_this_is_linker_script
;
5685 const char *save_suffix_subst
;
5687 int save_growing_size
;
5688 void *save_growing_value
= NULL
;
5690 sf
= lookup_spec_function (func
);
5692 fatal_error ("unknown spec function %qs", func
);
5694 /* Push the spec processing context. */
5695 save_argbuf
= argbuf
;
5697 save_arg_going
= arg_going
;
5698 save_delete_this_arg
= delete_this_arg
;
5699 save_this_is_output_file
= this_is_output_file
;
5700 save_this_is_library_file
= this_is_library_file
;
5701 save_this_is_linker_script
= this_is_linker_script
;
5702 save_input_from_pipe
= input_from_pipe
;
5703 save_suffix_subst
= suffix_subst
;
5705 /* If we have some object growing now, finalize it so the args and function
5706 eval proceed from a cleared context. This is needed to prevent the first
5707 constructed arg from mistakenly including the growing value. We'll push
5708 this value back on the obstack once the function evaluation is done, to
5709 restore a consistent processing context for our caller. This is fine as
5710 the address of growing objects isn't guaranteed to remain stable until
5711 they are finalized, and we expect this situation to be rare enough for
5712 the extra copy not to be an issue. */
5713 save_growing_size
= obstack_object_size (&obstack
);
5714 if (save_growing_size
> 0)
5715 save_growing_value
= obstack_finish (&obstack
);
5717 /* Create a new spec processing context, and build the function
5721 if (do_spec_2 (args
) < 0)
5722 fatal_error ("error in args to spec function %qs", func
);
5724 /* argbuf_index is an index for the next argument to be inserted, and
5725 so contains the count of the args already inserted. */
5727 funcval
= (*sf
->func
) (argbuf
.length (),
5730 /* Pop the spec processing context. */
5732 argbuf
= save_argbuf
;
5734 arg_going
= save_arg_going
;
5735 delete_this_arg
= save_delete_this_arg
;
5736 this_is_output_file
= save_this_is_output_file
;
5737 this_is_library_file
= save_this_is_library_file
;
5738 this_is_linker_script
= save_this_is_linker_script
;
5739 input_from_pipe
= save_input_from_pipe
;
5740 suffix_subst
= save_suffix_subst
;
5742 if (save_growing_size
> 0)
5743 obstack_grow (&obstack
, save_growing_value
, save_growing_size
);
5748 /* Handle a spec function call of the form:
5752 ARGS is processed as a spec in a separate context and split into an
5753 argument vector in the normal fashion. The function returns a string
5754 containing a spec which we then process in the caller's context, or
5755 NULL if no processing is required.
5757 If RETVAL_NONNULL is not NULL, then store a bool whether function
5758 returned non-NULL. */
5761 handle_spec_function (const char *p
, bool *retval_nonnull
)
5764 const char *endp
, *funcval
;
5767 processing_spec_function
++;
5769 /* Get the function name. */
5770 for (endp
= p
; *endp
!= '\0'; endp
++)
5772 if (*endp
== '(') /* ) */
5774 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5775 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5776 fatal_error ("malformed spec function name");
5778 if (*endp
!= '(') /* ) */
5779 fatal_error ("no arguments for spec function");
5780 func
= save_string (p
, endp
- p
);
5783 /* Get the arguments. */
5784 for (count
= 0; *endp
!= '\0'; endp
++)
5793 else if (*endp
== '(') /* ) */
5798 fatal_error ("malformed spec function arguments");
5799 args
= save_string (p
, endp
- p
);
5802 /* p now points to just past the end of the spec function expression. */
5804 funcval
= eval_spec_function (func
, args
);
5805 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5808 *retval_nonnull
= funcval
!= NULL
;
5813 processing_spec_function
--;
5818 /* Inline subroutine of handle_braces. Returns true if the current
5819 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5821 input_suffix_matches (const char *atom
, const char *end_atom
)
5823 return (input_suffix
5824 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5825 && input_suffix
[end_atom
- atom
] == '\0');
5828 /* Subroutine of handle_braces. Returns true if the current
5829 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
5831 input_spec_matches (const char *atom
, const char *end_atom
)
5833 return (input_file_compiler
5834 && input_file_compiler
->suffix
5835 && input_file_compiler
->suffix
[0] != '\0'
5836 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
5838 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
5841 /* Subroutine of handle_braces. Returns true if a switch
5842 matching the atom bracketed by ATOM and END_ATOM appeared on the
5845 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5848 int len
= end_atom
- atom
;
5849 int plen
= starred
? len
: -1;
5851 for (i
= 0; i
< n_switches
; i
++)
5852 if (!strncmp (switches
[i
].part1
, atom
, len
)
5853 && (starred
|| switches
[i
].part1
[len
] == '\0')
5854 && check_live_switch (i
, plen
))
5857 /* Check if a switch with separated form matching the atom.
5858 We check -D and -U switches. */
5859 else if (switches
[i
].args
!= 0)
5861 if ((*switches
[i
].part1
== 'D' || *switches
[i
].part1
== 'U')
5862 && *switches
[i
].part1
== atom
[0])
5864 if (!strncmp (switches
[i
].args
[0], &atom
[1], len
- 1)
5865 && (starred
|| (switches
[i
].part1
[1] == '\0'
5866 && switches
[i
].args
[0][len
- 1] == '\0'))
5867 && check_live_switch (i
, (starred
? 1 : -1)))
5875 /* Inline subroutine of handle_braces. Mark all of the switches which
5876 match ATOM (extends to END_ATOM; STARRED indicates whether there
5877 was a star after the atom) for later processing. */
5879 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5882 int len
= end_atom
- atom
;
5883 int plen
= starred
? len
: -1;
5885 for (i
= 0; i
< n_switches
; i
++)
5886 if (!strncmp (switches
[i
].part1
, atom
, len
)
5887 && (starred
|| switches
[i
].part1
[len
] == '\0')
5888 && check_live_switch (i
, plen
))
5889 switches
[i
].ordering
= 1;
5892 /* Inline subroutine of handle_braces. Process all the currently
5893 marked switches through give_switch, and clear the marks. */
5895 process_marked_switches (void)
5899 for (i
= 0; i
< n_switches
; i
++)
5900 if (switches
[i
].ordering
== 1)
5902 switches
[i
].ordering
= 0;
5907 /* Handle a %{ ... } construct. P points just inside the leading {.
5908 Returns a pointer one past the end of the brace block, or 0
5909 if we call do_spec_1 and that returns -1. */
5912 handle_braces (const char *p
)
5914 const char *atom
, *end_atom
;
5915 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5916 const char *orig
= p
;
5924 bool a_must_be_last
= false;
5925 bool ordered_set
= false;
5926 bool disjunct_set
= false;
5927 bool disj_matched
= false;
5928 bool disj_starred
= true;
5929 bool n_way_choice
= false;
5930 bool n_way_matched
= false;
5932 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5939 /* Scan one "atom" (S in the description above of %{}, possibly
5940 with '!', '.', '@', ',', or '*' modifiers). */
5942 a_is_suffix
= false;
5943 a_is_starred
= false;
5944 a_is_negated
= false;
5945 a_is_spectype
= false;
5949 p
++, a_is_negated
= true;
5952 if (*p
== '%' && p
[1] == ':')
5956 p
= handle_spec_function (p
+ 2, &a_matched
);
5961 p
++, a_is_suffix
= true;
5963 p
++, a_is_spectype
= true;
5966 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
5967 || *p
== ',' || *p
== '.' || *p
== '@')
5972 p
++, a_is_starred
= 1;
5979 /* Substitute the switch(es) indicated by the current atom. */
5981 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5982 || a_is_spectype
|| atom
== end_atom
)
5985 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5988 process_marked_switches ();
5992 /* Substitute some text if the current atom appears as a switch
5994 disjunct_set
= true;
5998 if (atom
&& atom
== end_atom
)
6000 if (!n_way_choice
|| disj_matched
|| *p
== '|'
6001 || a_is_negated
|| a_is_suffix
|| a_is_spectype
6005 /* An empty term may appear as the last choice of an
6006 N-way choice set; it means "otherwise". */
6007 a_must_be_last
= true;
6008 disj_matched
= !n_way_matched
;
6009 disj_starred
= false;
6013 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
6017 disj_starred
= false;
6019 /* Don't bother testing this atom if we already have a
6021 if (!disj_matched
&& !n_way_matched
)
6024 /* a_matched is already set by handle_spec_function. */;
6025 else if (a_is_suffix
)
6026 a_matched
= input_suffix_matches (atom
, end_atom
);
6027 else if (a_is_spectype
)
6028 a_matched
= input_spec_matches (atom
, end_atom
);
6030 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
6032 if (a_matched
!= a_is_negated
)
6034 disj_matched
= true;
6036 d_end_atom
= end_atom
;
6043 /* Found the body, that is, the text to substitute if the
6044 current disjunction matches. */
6045 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
6046 disj_matched
&& !n_way_matched
);
6050 /* If we have an N-way choice, reset state for the next
6054 n_way_choice
= true;
6055 n_way_matched
|= disj_matched
;
6056 disj_matched
= false;
6057 disj_starred
= true;
6058 d_atom
= d_end_atom
= NULL
;
6067 while (*p
++ != '}');
6072 fatal_error ("braced spec %qs is invalid at %qc", orig
, *p
);
6077 /* Subroutine of handle_braces. Scan and process a brace substitution body
6078 (X in the description of %{} syntax). P points one past the colon;
6079 ATOM and END_ATOM bracket the first atom which was found to be true
6080 (present) in the current disjunction; STARRED indicates whether all
6081 the atoms in the current disjunction were starred (for syntax validation);
6082 MATCHED indicates whether the disjunction matched or not, and therefore
6083 whether or not the body is to be processed through do_spec_1 or just
6084 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6088 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
6089 int starred
, int matched
)
6091 const char *body
, *end_body
;
6092 unsigned int nesting_level
;
6093 bool have_subst
= false;
6095 /* Locate the closing } or ;, honoring nested braces.
6096 Trim trailing whitespace. */
6105 if (!--nesting_level
)
6108 else if (*p
== ';' && nesting_level
== 1)
6110 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
6112 else if (*p
== '\0')
6118 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
6121 if (have_subst
&& !starred
)
6126 /* Copy the substitution body to permanent storage and execute it.
6127 If have_subst is false, this is a simple matter of running the
6128 body through do_spec_1... */
6129 char *string
= save_string (body
, end_body
- body
);
6132 if (do_spec_1 (string
, 0, NULL
) < 0)
6137 /* ... but if have_subst is true, we have to process the
6138 body once for each matching switch, with %* set to the
6139 variant part of the switch. */
6140 unsigned int hard_match_len
= end_atom
- atom
;
6143 for (i
= 0; i
< n_switches
; i
++)
6144 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
6145 && check_live_switch (i
, hard_match_len
))
6147 if (do_spec_1 (string
, 0,
6148 &switches
[i
].part1
[hard_match_len
]) < 0)
6150 /* Pass any arguments this switch has. */
6152 suffix_subst
= NULL
;
6160 fatal_error ("braced spec body %qs is invalid", body
);
6163 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6164 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6165 spec, or -1 if either exact match or %* is used.
6167 A -O switch is obsoleted by a later -O switch. A -f, -g, -m, or -W switch
6168 whose value does not begin with "no-" is obsoleted by the same value
6169 with the "no-", similarly for a switch with the "no-" prefix. */
6172 check_live_switch (int switchnum
, int prefix_length
)
6174 const char *name
= switches
[switchnum
].part1
;
6177 /* If we already processed this switch and determined if it was
6178 live or not, return our past determination. */
6179 if (switches
[switchnum
].live_cond
!= 0)
6180 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
6181 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
6182 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
6185 /* In the common case of {<at-most-one-letter>*}, a negating
6186 switch would always match, so ignore that case. We will just
6187 send the conflicting switches to the compiler phase. */
6188 if (prefix_length
>= 0 && prefix_length
<= 1)
6191 /* Now search for duplicate in a manner that depends on the name. */
6195 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6196 if (switches
[i
].part1
[0] == 'O')
6198 switches
[switchnum
].validated
= true;
6199 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6204 case 'W': case 'f': case 'm': case 'g':
6205 if (! strncmp (name
+ 1, "no-", 3))
6207 /* We have Xno-YYY, search for XYYY. */
6208 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6209 if (switches
[i
].part1
[0] == name
[0]
6210 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6212 /* --specs are validated with the validate_switches mechanism. */
6213 if (switches
[switchnum
].known
)
6214 switches
[switchnum
].validated
= true;
6215 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6221 /* We have XYYY, search for Xno-YYY. */
6222 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6223 if (switches
[i
].part1
[0] == name
[0]
6224 && switches
[i
].part1
[1] == 'n'
6225 && switches
[i
].part1
[2] == 'o'
6226 && switches
[i
].part1
[3] == '-'
6227 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6229 /* --specs are validated with the validate_switches mechanism. */
6230 if (switches
[switchnum
].known
)
6231 switches
[switchnum
].validated
= true;
6232 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6239 /* Otherwise the switch is live. */
6240 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6244 /* Pass a switch to the current accumulating command
6245 in the same form that we received it.
6246 SWITCHNUM identifies the switch; it is an index into
6247 the vector of switches gcc received, which is `switches'.
6248 This cannot fail since it never finishes a command line.
6250 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6253 give_switch (int switchnum
, int omit_first_word
)
6255 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6258 if (!omit_first_word
)
6260 do_spec_1 ("-", 0, NULL
);
6261 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6264 if (switches
[switchnum
].args
!= 0)
6267 for (p
= switches
[switchnum
].args
; *p
; p
++)
6269 const char *arg
= *p
;
6271 do_spec_1 (" ", 0, NULL
);
6274 unsigned length
= strlen (arg
);
6277 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6278 if (arg
[length
] == '.')
6280 (CONST_CAST (char *, arg
))[length
] = 0;
6284 do_spec_1 (arg
, 1, NULL
);
6286 (CONST_CAST (char *, arg
))[length
] = '.';
6287 do_spec_1 (suffix_subst
, 1, NULL
);
6290 do_spec_1 (arg
, 1, NULL
);
6294 do_spec_1 (" ", 0, NULL
);
6295 switches
[switchnum
].validated
= true;
6298 /* Print GCC configuration (e.g. version, thread model, target,
6299 configuration_arguments) to a given FILE. */
6302 print_configuration (FILE *file
)
6307 fnotice (file
, "Target: %s\n", spec_machine
);
6308 fnotice (file
, "Configured with: %s\n", configuration_arguments
);
6310 #ifdef THREAD_MODEL_SPEC
6311 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6312 but there's no point in doing all this processing just to get
6313 thread_model back. */
6314 obstack_init (&obstack
);
6315 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6316 obstack_1grow (&obstack
, '\0');
6317 thrmod
= XOBFINISH (&obstack
, const char *);
6319 thrmod
= thread_model
;
6322 fnotice (file
, "Thread model: %s\n", thrmod
);
6324 /* compiler_version is truncated at the first space when initialized
6325 from version string, so truncate version_string at the first space
6326 before comparing. */
6327 for (n
= 0; version_string
[n
]; n
++)
6328 if (version_string
[n
] == ' ')
6331 if (! strncmp (version_string
, compiler_version
, n
)
6332 && compiler_version
[n
] == 0)
6333 fnotice (file
, "gcc version %s %s\n\n", version_string
,
6336 fnotice (file
, "gcc driver version %s %sexecuting gcc version %s\n\n",
6337 version_string
, pkgversion_string
, compiler_version
);
6341 #define RETRY_ICE_ATTEMPTS 3
6343 /* Returns true if FILE1 and FILE2 contain equivalent data, 0 otherwise. */
6346 files_equal_p (char *file1
, char *file2
)
6348 struct stat st1
, st2
;
6351 const int bufsize
= 8192;
6352 char *buf
= XNEWVEC (char, bufsize
);
6354 fd1
= open (file1
, O_RDONLY
);
6355 fd2
= open (file2
, O_RDONLY
);
6357 if (fd1
< 0 || fd2
< 0)
6360 if (fstat (fd1
, &st1
) < 0 || fstat (fd2
, &st2
) < 0)
6363 if (st1
.st_size
!= st2
.st_size
)
6366 for (n
= st1
.st_size
; n
; n
-= len
)
6369 if ((int) len
> bufsize
/ 2)
6372 if (read (fd1
, buf
, len
) != (int) len
6373 || read (fd2
, buf
+ bufsize
/ 2, len
) != (int) len
)
6378 if (memcmp (buf
, buf
+ bufsize
/ 2, len
) != 0)
6395 /* Check that compiler's output doesn't differ across runs.
6396 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are arrays of files, containing
6397 stdout and stderr for each compiler run. Return true if all of
6398 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are equivalent. */
6401 check_repro (char **temp_stdout_files
, char **temp_stderr_files
)
6404 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
- 2; ++i
)
6406 if (!files_equal_p (temp_stdout_files
[i
], temp_stdout_files
[i
+ 1])
6407 || !files_equal_p (temp_stderr_files
[i
], temp_stderr_files
[i
+ 1]))
6409 fnotice (stderr
, "The bug is not reproducible, so it is"
6410 " likely a hardware or OS problem.\n");
6414 return i
== RETRY_ICE_ATTEMPTS
- 2;
6417 enum attempt_status
{
6418 ATTEMPT_STATUS_FAIL_TO_RUN
,
6419 ATTEMPT_STATUS_SUCCESS
,
6424 /* Run compiler with arguments NEW_ARGV to reproduce the ICE, storing stdout
6425 to OUT_TEMP and stderr to ERR_TEMP. If APPEND is TRUE, append to OUT_TEMP
6426 and ERR_TEMP instead of truncating. If EMIT_SYSTEM_INFO is TRUE, also write
6427 GCC configuration into to ERR_TEMP. Return ATTEMPT_STATUS_FAIL_TO_RUN if
6428 compiler failed to run, ATTEMPT_STATUS_ICE if compiled ICE-ed and
6429 ATTEMPT_STATUS_SUCCESS otherwise. */
6431 static enum attempt_status
6432 run_attempt (const char **new_argv
, const char *out_temp
,
6433 const char *err_temp
, int emit_system_info
, int append
)
6436 if (emit_system_info
)
6438 FILE *file_out
= fopen (err_temp
, "a");
6439 print_configuration (file_out
);
6445 struct pex_obj
*pex
;
6447 int pex_flags
= PEX_USE_PIPES
| PEX_LAST
;
6448 enum attempt_status status
= ATTEMPT_STATUS_FAIL_TO_RUN
;
6451 pex_flags
|= PEX_STDOUT_APPEND
| PEX_STDERR_APPEND
;
6453 pex
= pex_init (PEX_USE_PIPES
, new_argv
[0], NULL
);
6455 fatal_error ("pex_init failed: %m");
6457 errmsg
= pex_run (pex
, pex_flags
, new_argv
[0],
6458 CONST_CAST2 (char *const *, const char **, &new_argv
[1]), out_temp
,
6463 fatal_error (errmsg
);
6467 pfatal_with_name (errmsg
);
6471 if (!pex_get_status (pex
, 1, &exit_status
))
6474 switch (WEXITSTATUS (exit_status
))
6477 status
= ATTEMPT_STATUS_ICE
;
6480 case SUCCESS_EXIT_CODE
:
6481 status
= ATTEMPT_STATUS_SUCCESS
;
6493 /* This routine reads lines from IN file, adds C++ style comments
6494 at the begining of each line and writes result into OUT. */
6497 insert_comments (const char *file_in
, const char *file_out
)
6499 FILE *in
= fopen (file_in
, "rb");
6500 FILE *out
= fopen (file_out
, "wb");
6503 bool add_comment
= true;
6504 while (fgets (line
, sizeof (line
), in
))
6509 add_comment
= strchr (line
, '\n') != NULL
;
6516 /* This routine adds preprocessed source code into the given ERR_FILE.
6517 To do this, it adds "-E" to NEW_ARGV and execute RUN_ATTEMPT routine to
6518 add information in report file. RUN_ATTEMPT should return
6519 ATTEMPT_STATUS_SUCCESS, in other case we cannot generate the report. */
6522 do_report_bug (const char **new_argv
, const int nargs
,
6523 char **out_file
, char **err_file
)
6526 int fd
= open (*out_file
, O_RDWR
| O_APPEND
);
6529 write (fd
, "\n//", 3);
6530 for (i
= 0; i
< nargs
; i
++)
6533 write (fd
, new_argv
[i
], strlen (new_argv
[i
]));
6535 write (fd
, "\n\n", 2);
6537 new_argv
[nargs
] = "-E";
6538 new_argv
[nargs
+ 1] = NULL
;
6540 status
= run_attempt (new_argv
, *out_file
, *err_file
, 0, 1);
6542 if (status
== ATTEMPT_STATUS_SUCCESS
)
6544 fnotice (stderr
, "Preprocessed source stored into %s file,"
6545 " please attach this to your bugreport.\n", *out_file
);
6546 /* Make sure it is not deleted. */
6552 /* Try to reproduce ICE. If bug is reproducible, generate report .err file
6553 containing GCC configuration, backtrace, compiler's command line options
6554 and preprocessed source code. */
6557 try_generate_repro (const char **argv
)
6559 int i
, nargs
, out_arg
= -1, quiet
= 0, attempt
;
6560 const char **new_argv
;
6561 char *temp_files
[RETRY_ICE_ATTEMPTS
* 2];
6562 char **temp_stdout_files
= &temp_files
[0];
6563 char **temp_stderr_files
= &temp_files
[RETRY_ICE_ATTEMPTS
];
6565 if (gcc_input_filename
== NULL
|| ! strcmp (gcc_input_filename
, "-"))
6568 for (nargs
= 0; argv
[nargs
] != NULL
; ++nargs
)
6569 /* Only retry compiler ICEs, not preprocessor ones. */
6570 if (! strcmp (argv
[nargs
], "-E"))
6572 else if (argv
[nargs
][0] == '-' && argv
[nargs
][1] == 'o')
6579 /* If the compiler is going to output any time information,
6580 it might varry between invocations. */
6581 else if (! strcmp (argv
[nargs
], "-quiet"))
6583 else if (! strcmp (argv
[nargs
], "-ftime-report"))
6586 if (out_arg
== -1 || !quiet
)
6589 memset (temp_files
, '\0', sizeof (temp_files
));
6590 new_argv
= XALLOCAVEC (const char *, nargs
+ 4);
6591 memcpy (new_argv
, argv
, (nargs
+ 1) * sizeof (const char *));
6592 new_argv
[nargs
++] = "-frandom-seed=0";
6593 new_argv
[nargs
++] = "-fdump-noaddr";
6594 new_argv
[nargs
] = NULL
;
6595 if (new_argv
[out_arg
][2] == '\0')
6596 new_argv
[out_arg
+ 1] = "-";
6598 new_argv
[out_arg
] = "-o-";
6601 for (attempt
= 0; attempt
< RETRY_ICE_ATTEMPTS
; ++attempt
)
6603 int emit_system_info
= 0;
6605 temp_stdout_files
[attempt
] = make_temp_file (".out");
6606 temp_stderr_files
[attempt
] = make_temp_file (".err");
6608 if (attempt
== RETRY_ICE_ATTEMPTS
- 1)
6611 emit_system_info
= 1;
6614 status
= run_attempt (new_argv
, temp_stdout_files
[attempt
],
6615 temp_stderr_files
[attempt
], emit_system_info
,
6618 if (status
!= ATTEMPT_STATUS_ICE
)
6620 fnotice (stderr
, "The bug is not reproducible, so it is"
6621 " likely a hardware or OS problem.\n");
6626 if (!check_repro (temp_stdout_files
, temp_stderr_files
))
6630 /* Insert commented out backtrace into report file. */
6631 char **stderr_commented
= &temp_stdout_files
[RETRY_ICE_ATTEMPTS
- 1];
6632 insert_comments (temp_stderr_files
[RETRY_ICE_ATTEMPTS
- 1],
6635 /* In final attempt we append compiler options and preprocesssed code to last
6636 generated .out file with configuration and backtrace. */
6637 char **output
= &temp_stdout_files
[RETRY_ICE_ATTEMPTS
- 1];
6638 do_report_bug (new_argv
, nargs
, stderr_commented
, output
);
6642 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
* 2; i
++)
6645 unlink (temp_stdout_files
[i
]);
6646 free (temp_stdout_files
[i
]);
6650 /* Search for a file named NAME trying various prefixes including the
6651 user's -B prefix and some standard ones.
6652 Return the absolute file name found. If nothing is found, return NAME. */
6655 find_file (const char *name
)
6657 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
6658 return newname
? newname
: name
;
6661 /* Determine whether a directory exists. If LINKER, return 0 for
6662 certain fixed names not needed by the linker. */
6665 is_directory (const char *path1
, bool linker
)
6672 /* Ensure the string ends with "/.". The resulting path will be a
6673 directory even if the given path is a symbolic link. */
6674 len1
= strlen (path1
);
6675 path
= (char *) alloca (3 + len1
);
6676 memcpy (path
, path1
, len1
);
6678 if (!IS_DIR_SEPARATOR (cp
[-1]))
6679 *cp
++ = DIR_SEPARATOR
;
6683 /* Exclude directories that the linker is known to search. */
6685 && IS_DIR_SEPARATOR (path
[0])
6687 && filename_ncmp (path
+ 1, "lib", 3) == 0)
6689 && filename_ncmp (path
+ 1, "usr", 3) == 0
6690 && IS_DIR_SEPARATOR (path
[4])
6691 && filename_ncmp (path
+ 5, "lib", 3) == 0)))
6694 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6697 /* Set up the various global variables to indicate that we're processing
6698 the input file named FILENAME. */
6701 set_input (const char *filename
)
6705 gcc_input_filename
= filename
;
6706 input_filename_length
= strlen (gcc_input_filename
);
6707 input_basename
= lbasename (gcc_input_filename
);
6709 /* Find a suffix starting with the last period,
6710 and set basename_length to exclude that suffix. */
6711 basename_length
= strlen (input_basename
);
6712 suffixed_basename_length
= basename_length
;
6713 p
= input_basename
+ basename_length
;
6714 while (p
!= input_basename
&& *p
!= '.')
6716 if (*p
== '.' && p
!= input_basename
)
6718 basename_length
= p
- input_basename
;
6719 input_suffix
= p
+ 1;
6724 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6725 we will need to do a stat on the gcc_input_filename. The
6726 INPUT_STAT_SET signals that the stat is needed. */
6730 /* On fatal signals, delete all the temporary files. */
6733 fatal_signal (int signum
)
6735 signal (signum
, SIG_DFL
);
6736 delete_failure_queue ();
6737 delete_temp_files ();
6738 /* Get the same signal again, this time not handled,
6739 so its normal effect occurs. */
6740 kill (getpid (), signum
);
6743 /* Compare the contents of the two files named CMPFILE[0] and
6744 CMPFILE[1]. Return zero if they're identical, nonzero
6748 compare_files (char *cmpfile
[])
6751 FILE *temp
[2] = { NULL
, NULL
};
6757 void *map
[2] = { NULL
, NULL
};
6759 for (i
= 0; i
< 2; i
++)
6763 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
6765 error ("%s: could not determine length of compare-debug file %s",
6766 gcc_input_filename
, cmpfile
[i
]);
6771 length
[i
] = st
.st_size
;
6774 if (!ret
&& length
[0] != length
[1])
6776 error ("%s: -fcompare-debug failure (length)", gcc_input_filename
);
6781 for (i
= 0; i
< 2; i
++)
6783 int fd
= open (cmpfile
[i
], O_RDONLY
);
6786 error ("%s: could not open compare-debug file %s",
6787 gcc_input_filename
, cmpfile
[i
]);
6792 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
6795 if (map
[i
] == (void *) MAP_FAILED
)
6804 if (memcmp (map
[0], map
[1], length
[0]) != 0)
6806 error ("%s: -fcompare-debug failure", gcc_input_filename
);
6811 for (i
= 0; i
< 2; i
++)
6813 munmap ((caddr_t
) map
[i
], length
[i
]);
6822 for (i
= 0; i
< 2; i
++)
6824 temp
[i
] = fopen (cmpfile
[i
], "r");
6827 error ("%s: could not open compare-debug file %s",
6828 gcc_input_filename
, cmpfile
[i
]);
6834 if (!ret
&& temp
[0] && temp
[1])
6838 c0
= fgetc (temp
[0]);
6839 c1
= fgetc (temp
[1]);
6843 error ("%s: -fcompare-debug failure",
6844 gcc_input_filename
);
6853 for (i
= 1; i
>= 0; i
--)
6862 /* The top-level "main" within the driver would be ~1000 lines long.
6863 This class breaks it up into smaller functions and contains some
6864 state shared by them. */
6869 int main (int argc
, char **argv
);
6872 void set_progname (const char *argv0
) const;
6873 void expand_at_files (int *argc
, char ***argv
) const;
6874 void decode_argv (int argc
, const char **argv
);
6875 void global_initializations ();
6876 void build_multilib_strings () const;
6877 void set_up_specs () const;
6878 void putenv_COLLECT_GCC (const char *argv0
) const;
6879 void maybe_putenv_COLLECT_LTO_WRAPPER () const;
6880 void maybe_putenv_OFFLOAD_TARGETS () const;
6881 void handle_unrecognized_options () const;
6882 int maybe_print_and_exit () const;
6883 bool prepare_infiles ();
6884 void do_spec_on_infiles () const;
6885 void maybe_run_linker (const char *argv0
) const;
6886 void final_actions () const;
6887 int get_exit_code () const;
6890 char *explicit_link_files
;
6891 struct cl_decoded_option
*decoded_options
;
6892 unsigned int decoded_options_count
;
6895 /* Implement the top-level "main" within the driver in terms of
6898 extern int main (int, char **);
6901 main (int argc
, char **argv
)
6905 return d
.main (argc
, argv
);
6908 /* driver::main is implemented as a series of driver:: method calls. */
6911 driver::main (int argc
, char **argv
)
6915 set_progname (argv
[0]);
6916 expand_at_files (&argc
, &argv
);
6917 decode_argv (argc
, const_cast <const char **> (argv
));
6918 global_initializations ();
6919 build_multilib_strings ();
6921 putenv_COLLECT_GCC (argv
[0]);
6922 maybe_putenv_COLLECT_LTO_WRAPPER ();
6923 maybe_putenv_OFFLOAD_TARGETS ();
6924 handle_unrecognized_options ();
6926 if (!maybe_print_and_exit ())
6929 early_exit
= prepare_infiles ();
6931 return get_exit_code ();
6933 do_spec_on_infiles ();
6934 maybe_run_linker (argv
[0]);
6936 return get_exit_code ();
6939 /* Locate the final component of argv[0] after any leading path, and set
6940 the program name accordingly. */
6943 driver::set_progname (const char *argv0
) const
6945 const char *p
= argv0
+ strlen (argv0
);
6946 while (p
!= argv0
&& !IS_DIR_SEPARATOR (p
[-1]))
6950 xmalloc_set_program_name (progname
);
6953 /* Expand any @ files within the command-line args,
6954 setting at_file_supplied if any were expanded. */
6957 driver::expand_at_files (int *argc
, char ***argv
) const
6959 char **old_argv
= *argv
;
6961 expandargv (argc
, argv
);
6963 /* Determine if any expansions were made. */
6964 if (*argv
!= old_argv
)
6965 at_file_supplied
= true;
6968 /* Decode the command-line arguments from argc/argv into the
6969 decoded_options array. */
6972 driver::decode_argv (int argc
, const char **argv
)
6974 /* Register the language-independent parameters. */
6975 global_init_params ();
6978 init_options_struct (&global_options
, &global_options_set
);
6980 decode_cmdline_options_to_array (argc
, argv
,
6982 &decoded_options
, &decoded_options_count
);
6985 /* Perform various initializations and setup. */
6988 driver::global_initializations ()
6990 /* Unlock the stdio streams. */
6991 unlock_std_streams ();
6993 gcc_init_libintl ();
6995 diagnostic_initialize (global_dc
, 0);
6996 diagnostic_color_init (global_dc
);
6998 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6999 /* Perform host dependent initialization when needed. */
7000 GCC_DRIVER_HOST_INITIALIZATION
;
7003 if (atexit (delete_temp_files
) != 0)
7004 fatal_error ("atexit failed");
7006 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
7007 signal (SIGINT
, fatal_signal
);
7009 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
7010 signal (SIGHUP
, fatal_signal
);
7012 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
7013 signal (SIGTERM
, fatal_signal
);
7015 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
7016 signal (SIGPIPE
, fatal_signal
);
7019 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
7020 receive the signal. A different setting is inheritable */
7021 signal (SIGCHLD
, SIG_DFL
);
7024 /* Parsing and gimplification sometimes need quite large stack.
7025 Increase stack size limits if possible. */
7026 stack_limit_increase (64 * 1024 * 1024);
7028 /* Allocate the argument vector. */
7031 obstack_init (&obstack
);
7034 /* Build multilib_select, et. al from the separate lines that make up each
7035 multilib selection. */
7038 driver::build_multilib_strings () const
7042 const char *const *q
= multilib_raw
;
7045 obstack_init (&multilib_obstack
);
7046 while ((p
= *q
++) != (char *) 0)
7047 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7049 obstack_1grow (&multilib_obstack
, 0);
7050 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
7052 q
= multilib_matches_raw
;
7053 while ((p
= *q
++) != (char *) 0)
7054 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7056 obstack_1grow (&multilib_obstack
, 0);
7057 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
7059 q
= multilib_exclusions_raw
;
7060 while ((p
= *q
++) != (char *) 0)
7061 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7063 obstack_1grow (&multilib_obstack
, 0);
7064 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
7066 q
= multilib_reuse_raw
;
7067 while ((p
= *q
++) != (char *) 0)
7068 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7070 obstack_1grow (&multilib_obstack
, 0);
7071 multilib_reuse
= XOBFINISH (&multilib_obstack
, const char *);
7074 for (size_t i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
7077 obstack_1grow (&multilib_obstack
, ' ');
7078 obstack_grow (&multilib_obstack
,
7079 multilib_defaults_raw
[i
],
7080 strlen (multilib_defaults_raw
[i
]));
7084 obstack_1grow (&multilib_obstack
, 0);
7085 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
7089 /* Set up the spec-handling machinery. */
7092 driver::set_up_specs () const
7094 const char *spec_machine_suffix
;
7098 #ifdef INIT_ENVIRONMENT
7099 /* Set up any other necessary machine specific environment variables. */
7100 xputenv (INIT_ENVIRONMENT
);
7103 /* Make a table of what switches there are (switches, n_switches).
7104 Make a table of specified input files (infiles, n_infiles).
7105 Decode switches that are handled locally. */
7107 process_command (decoded_options_count
, decoded_options
);
7109 /* Initialize the vector of specs to just the default.
7110 This means one element containing 0s, as a terminator. */
7112 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
7113 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
7114 n_compilers
= n_default_compilers
;
7116 /* Read specs from a file if there is one. */
7118 machine_suffix
= concat (spec_host_machine
, dir_separator_str
, spec_version
,
7119 accel_dir_suffix
, dir_separator_str
, NULL
);
7120 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
7122 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
7123 /* Read the specs file unless it is a default one. */
7124 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
7125 read_specs (specs_file
, true, false);
7129 #ifdef ACCEL_COMPILER
7130 spec_machine_suffix
= machine_suffix
;
7132 spec_machine_suffix
= just_machine_suffix
;
7135 /* We need to check standard_exec_prefix/spec_machine_suffix/specs
7136 for any override of as, ld and libraries. */
7137 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
7138 + strlen (spec_machine_suffix
) + sizeof ("specs"));
7139 strcpy (specs_file
, standard_exec_prefix
);
7140 strcat (specs_file
, spec_machine_suffix
);
7141 strcat (specs_file
, "specs");
7142 if (access (specs_file
, R_OK
) == 0)
7143 read_specs (specs_file
, true, false);
7145 /* Process any configure-time defaults specified for the command line
7146 options, via OPTION_DEFAULT_SPECS. */
7147 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
7148 do_option_spec (option_default_specs
[i
].name
,
7149 option_default_specs
[i
].spec
);
7151 /* Process DRIVER_SELF_SPECS, adding any new options to the end
7152 of the command line. */
7154 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
7155 do_self_spec (driver_self_specs
[i
]);
7157 /* If not cross-compiling, look for executables in the standard
7159 if (*cross_compile
== '0')
7161 if (*md_exec_prefix
)
7163 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
7164 PREFIX_PRIORITY_LAST
, 0, 0);
7168 /* Process sysroot_suffix_spec. */
7169 if (*sysroot_suffix_spec
!= 0
7170 && !no_sysroot_suffix
7171 && do_spec_2 (sysroot_suffix_spec
) == 0)
7173 if (argbuf
.length () > 1)
7174 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
7175 else if (argbuf
.length () == 1)
7176 target_sysroot_suffix
= xstrdup (argbuf
.last ());
7179 #ifdef HAVE_LD_SYSROOT
7180 /* Pass the --sysroot option to the linker, if it supports that. If
7181 there is a sysroot_suffix_spec, it has already been processed by
7182 this point, so target_system_root really is the system root we
7184 if (target_system_root
)
7186 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
7187 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
7188 set_spec ("link", XOBFINISH (&obstack
, const char *), false);
7192 /* Process sysroot_hdrs_suffix_spec. */
7193 if (*sysroot_hdrs_suffix_spec
!= 0
7194 && !no_sysroot_suffix
7195 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
7197 if (argbuf
.length () > 1)
7198 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
7199 else if (argbuf
.length () == 1)
7200 target_sysroot_hdrs_suffix
= xstrdup (argbuf
.last ());
7203 /* Look for startfiles in the standard places. */
7204 if (*startfile_prefix_spec
!= 0
7205 && do_spec_2 (startfile_prefix_spec
) == 0
7206 && do_spec_1 (" ", 0, NULL
) == 0)
7210 FOR_EACH_VEC_ELT (argbuf
, ndx
, arg
)
7211 add_sysrooted_prefix (&startfile_prefixes
, arg
, "BINUTILS",
7212 PREFIX_PRIORITY_LAST
, 0, 1);
7214 /* We should eventually get rid of all these and stick to
7215 startfile_prefix_spec exclusively. */
7216 else if (*cross_compile
== '0' || target_system_root
)
7218 if (*md_startfile_prefix
)
7219 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
7220 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7222 if (*md_startfile_prefix_1
)
7223 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
7224 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7226 /* If standard_startfile_prefix is relative, base it on
7227 standard_exec_prefix. This lets us move the installed tree
7228 as a unit. If GCC_EXEC_PREFIX is defined, base
7229 standard_startfile_prefix on that as well.
7231 If the prefix is relative, only search it for native compilers;
7232 otherwise we will search a directory containing host libraries. */
7233 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
7234 add_sysrooted_prefix (&startfile_prefixes
,
7235 standard_startfile_prefix
, "BINUTILS",
7236 PREFIX_PRIORITY_LAST
, 0, 1);
7237 else if (*cross_compile
== '0')
7239 add_prefix (&startfile_prefixes
,
7240 concat (gcc_exec_prefix
7241 ? gcc_exec_prefix
: standard_exec_prefix
,
7243 standard_startfile_prefix
, NULL
),
7244 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
7247 /* Sysrooted prefixes are relocated because target_system_root is
7248 also relocated by gcc_exec_prefix. */
7249 if (*standard_startfile_prefix_1
)
7250 add_sysrooted_prefix (&startfile_prefixes
,
7251 standard_startfile_prefix_1
, "BINUTILS",
7252 PREFIX_PRIORITY_LAST
, 0, 1);
7253 if (*standard_startfile_prefix_2
)
7254 add_sysrooted_prefix (&startfile_prefixes
,
7255 standard_startfile_prefix_2
, "BINUTILS",
7256 PREFIX_PRIORITY_LAST
, 0, 1);
7259 /* Process any user specified specs in the order given on the command
7261 for (struct user_specs
*uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
7263 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
7265 read_specs (filename
? filename
: uptr
->filename
, false, true);
7268 /* Process any user self specs. */
7270 struct spec_list
*sl
;
7271 for (sl
= specs
; sl
; sl
= sl
->next
)
7272 if (sl
->name_len
== sizeof "self_spec" - 1
7273 && !strcmp (sl
->name
, "self_spec"))
7274 do_self_spec (*sl
->ptr_spec
);
7279 enum save_temps save
;
7281 if (!compare_debug_second
)
7283 n_switches_debug_check
[1] = n_switches
;
7284 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
7285 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
7288 do_self_spec ("%:compare-debug-self-opt()");
7289 n_switches_debug_check
[0] = n_switches
;
7290 n_switches_alloc_debug_check
[0] = n_switches_alloc
;
7291 switches_debug_check
[0] = switches
;
7293 n_switches
= n_switches_debug_check
[1];
7294 n_switches_alloc
= n_switches_alloc_debug_check
[1];
7295 switches
= switches_debug_check
[1];
7298 /* Avoid crash when computing %j in this early. */
7299 save
= save_temps_flag
;
7300 save_temps_flag
= SAVE_TEMPS_NONE
;
7302 compare_debug
= -compare_debug
;
7303 do_self_spec ("%:compare-debug-self-opt()");
7305 save_temps_flag
= save
;
7307 if (!compare_debug_second
)
7309 n_switches_debug_check
[1] = n_switches
;
7310 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
7311 switches_debug_check
[1] = switches
;
7312 compare_debug
= -compare_debug
;
7313 n_switches
= n_switches_debug_check
[0];
7314 n_switches_alloc
= n_switches_debug_check
[0];
7315 switches
= switches_debug_check
[0];
7320 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
7321 if (gcc_exec_prefix
)
7322 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_host_machine
,
7323 dir_separator_str
, spec_version
,
7324 accel_dir_suffix
, dir_separator_str
, NULL
);
7326 /* Now we have the specs.
7327 Set the `valid' bits for switches that match anything in any spec. */
7329 validate_all_switches ();
7331 /* Now that we have the switches and the specs, set
7332 the subdirectory based on the options. */
7333 set_multilib_dir ();
7336 /* Set up to remember the pathname of gcc and any options
7337 needed for collect. We use argv[0] instead of progname because
7338 we need the complete pathname. */
7341 driver::putenv_COLLECT_GCC (const char *argv0
) const
7343 obstack_init (&collect_obstack
);
7344 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
7345 obstack_grow (&collect_obstack
, argv0
, strlen (argv0
) + 1);
7346 xputenv (XOBFINISH (&collect_obstack
, char *));
7349 /* Set up to remember the pathname of the lto wrapper. */
7352 driver::maybe_putenv_COLLECT_LTO_WRAPPER () const
7354 char *lto_wrapper_file
;
7357 lto_wrapper_file
= NULL
;
7359 lto_wrapper_file
= find_a_file (&exec_prefixes
, "lto-wrapper",
7361 if (lto_wrapper_file
)
7363 lto_wrapper_file
= convert_white_space (lto_wrapper_file
);
7364 lto_wrapper_spec
= lto_wrapper_file
;
7365 obstack_init (&collect_obstack
);
7366 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
7367 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
7368 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
7369 strlen (lto_wrapper_spec
) + 1);
7370 xputenv (XOBFINISH (&collect_obstack
, char *));
7375 /* Set up to remember the names of offload targets. */
7378 driver::maybe_putenv_OFFLOAD_TARGETS () const
7380 const char *targets
= offload_targets
;
7382 /* If no targets specified by -foffload, use all available targets. */
7384 targets
= OFFLOAD_TARGETS
;
7386 if (strlen (targets
) > 0)
7388 obstack_grow (&collect_obstack
, "OFFLOAD_TARGET_NAMES=",
7389 sizeof ("OFFLOAD_TARGET_NAMES=") - 1);
7390 obstack_grow (&collect_obstack
, targets
,
7391 strlen (targets
) + 1);
7392 xputenv (XOBFINISH (&collect_obstack
, char *));
7395 free (offload_targets
);
7398 /* Reject switches that no pass was interested in. */
7401 driver::handle_unrecognized_options () const
7403 for (size_t i
= 0; (int) i
< n_switches
; i
++)
7404 if (! switches
[i
].validated
)
7405 error ("unrecognized command line option %<-%s%>", switches
[i
].part1
);
7408 /* Handle the various -print-* options, returning 0 if the driver
7409 should exit, or nonzero if the driver should continue. */
7412 driver::maybe_print_and_exit () const
7414 if (print_search_dirs
)
7416 printf (_("install: %s%s\n"),
7417 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
7418 gcc_exec_prefix
? "" : machine_suffix
);
7419 printf (_("programs: %s\n"),
7420 build_search_list (&exec_prefixes
, "", false, false));
7421 printf (_("libraries: %s\n"),
7422 build_search_list (&startfile_prefixes
, "", false, true));
7426 if (print_file_name
)
7428 printf ("%s\n", find_file (print_file_name
));
7432 if (print_prog_name
)
7434 if (use_ld
!= NULL
&& ! strcmp (print_prog_name
, "ld"))
7436 /* Append USE_LD to to the default linker. */
7437 #ifdef DEFAULT_LINKER
7439 # ifdef HAVE_HOST_EXECUTABLE_SUFFIX
7440 int len
= (sizeof (DEFAULT_LINKER
)
7441 - sizeof (HOST_EXECUTABLE_SUFFIX
));
7445 char *default_linker
= xstrdup (DEFAULT_LINKER
);
7446 /* Strip HOST_EXECUTABLE_SUFFIX if DEFAULT_LINKER contains
7447 HOST_EXECUTABLE_SUFFIX. */
7448 if (! strcmp (&default_linker
[len
], HOST_EXECUTABLE_SUFFIX
))
7450 default_linker
[len
] = '\0';
7451 ld
= concat (default_linker
, use_ld
,
7452 HOST_EXECUTABLE_SUFFIX
, NULL
);
7457 ld
= concat (DEFAULT_LINKER
, use_ld
, NULL
);
7458 if (access (ld
, X_OK
) == 0)
7460 printf ("%s\n", ld
);
7464 print_prog_name
= concat (print_prog_name
, use_ld
, NULL
);
7466 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
7467 printf ("%s\n", (newname
? newname
: print_prog_name
));
7471 if (print_multi_lib
)
7473 print_multilib_info ();
7477 if (print_multi_directory
)
7479 if (multilib_dir
== NULL
)
7482 printf ("%s\n", multilib_dir
);
7486 if (print_multiarch
)
7488 if (multiarch_dir
== NULL
)
7491 printf ("%s\n", multiarch_dir
);
7497 if (target_system_root
)
7499 if (target_sysroot_suffix
)
7500 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
7502 printf ("%s\n", target_system_root
);
7507 if (print_multi_os_directory
)
7509 if (multilib_os_dir
== NULL
)
7512 printf ("%s\n", multilib_os_dir
);
7516 if (print_sysroot_headers_suffix
)
7518 if (*sysroot_hdrs_suffix_spec
)
7520 printf("%s\n", (target_sysroot_hdrs_suffix
7521 ? target_sysroot_hdrs_suffix
7526 /* The error status indicates that only one set of fixed
7527 headers should be built. */
7528 fatal_error ("not configured with sysroot headers suffix");
7531 if (print_help_list
)
7537 printf (_("\nFor bug reporting instructions, please see:\n"));
7538 printf ("%s.\n", bug_report_url
);
7543 /* We do not exit here. Instead we have created a fake input file
7544 called 'help-dummy' which needs to be compiled, and we pass this
7545 on the various sub-processes, along with the --help switch.
7546 Ensure their output appears after ours. */
7547 fputc ('\n', stdout
);
7553 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
7555 printf ("Copyright %s 2015 Free Software Foundation, Inc.\n",
7557 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
7558 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
7563 /* We do not exit here. We use the same mechanism of --help to print
7564 the version of the sub-processes. */
7565 fputc ('\n', stdout
);
7571 print_configuration (stderr
);
7579 /* Figure out what to do with each input file.
7580 Return true if we need to exit early from "main", false otherwise. */
7583 driver::prepare_infiles ()
7586 int lang_n_infiles
= 0;
7588 if (n_infiles
== added_libraries
)
7589 fatal_error ("no input files");
7592 /* Early exit needed from main. */
7595 /* Make a place to record the compiler output file names
7596 that correspond to the input files. */
7599 i
+= lang_specific_extra_outfiles
;
7600 outfiles
= XCNEWVEC (const char *, i
);
7602 /* Record which files were specified explicitly as link input. */
7604 explicit_link_files
= XCNEWVEC (char, n_infiles
);
7606 combine_inputs
= have_o
|| flag_wpa
;
7608 for (i
= 0; (int) i
< n_infiles
; i
++)
7610 const char *name
= infiles
[i
].name
;
7611 struct compiler
*compiler
= lookup_compiler (name
,
7613 infiles
[i
].language
);
7615 if (compiler
&& !(compiler
->combinable
))
7616 combine_inputs
= false;
7618 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
7619 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
7620 infiles
[i
].incompiler
= compiler
;
7624 input_file_compiler
= compiler
;
7625 infiles
[i
].incompiler
= compiler
;
7629 /* Since there is no compiler for this input file, assume it is a
7631 explicit_link_files
[i
] = 1;
7632 infiles
[i
].incompiler
= NULL
;
7634 infiles
[i
].compiled
= false;
7635 infiles
[i
].preprocessed
= false;
7638 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
7639 fatal_error ("cannot specify -o with -c, -S or -E with multiple files");
7641 /* No early exit needed from main; we can continue. */
7645 /* Run the spec machinery on each input file. */
7648 driver::do_spec_on_infiles () const
7652 for (i
= 0; (int) i
< n_infiles
; i
++)
7654 int this_file_error
= 0;
7656 /* Tell do_spec what to substitute for %i. */
7658 input_file_number
= i
;
7659 set_input (infiles
[i
].name
);
7661 if (infiles
[i
].compiled
)
7664 /* Use the same thing in %o, unless cp->spec says otherwise. */
7666 outfiles
[i
] = gcc_input_filename
;
7668 /* Figure out which compiler from the file's suffix. */
7671 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
7672 infiles
[i
].language
);
7674 if (input_file_compiler
)
7676 /* Ok, we found an applicable compiler. Run its spec. */
7678 if (input_file_compiler
->spec
[0] == '#')
7680 error ("%s: %s compiler not installed on this system",
7681 gcc_input_filename
, &input_file_compiler
->spec
[1]);
7682 this_file_error
= 1;
7690 free (debug_check_temp_file
[0]);
7691 debug_check_temp_file
[0] = NULL
;
7693 free (debug_check_temp_file
[1]);
7694 debug_check_temp_file
[1] = NULL
;
7697 value
= do_spec (input_file_compiler
->spec
);
7698 infiles
[i
].compiled
= true;
7700 this_file_error
= 1;
7701 else if (compare_debug
&& debug_check_temp_file
[0])
7704 inform (0, "recompiling with -fcompare-debug");
7706 compare_debug
= -compare_debug
;
7707 n_switches
= n_switches_debug_check
[1];
7708 n_switches_alloc
= n_switches_alloc_debug_check
[1];
7709 switches
= switches_debug_check
[1];
7711 value
= do_spec (input_file_compiler
->spec
);
7713 compare_debug
= -compare_debug
;
7714 n_switches
= n_switches_debug_check
[0];
7715 n_switches_alloc
= n_switches_alloc_debug_check
[0];
7716 switches
= switches_debug_check
[0];
7720 error ("during -fcompare-debug recompilation");
7721 this_file_error
= 1;
7724 gcc_assert (debug_check_temp_file
[1]
7725 && filename_cmp (debug_check_temp_file
[0],
7726 debug_check_temp_file
[1]));
7729 inform (0, "comparing final insns dumps");
7731 if (compare_files (debug_check_temp_file
))
7732 this_file_error
= 1;
7737 free (debug_check_temp_file
[0]);
7738 debug_check_temp_file
[0] = NULL
;
7740 free (debug_check_temp_file
[1]);
7741 debug_check_temp_file
[1] = NULL
;
7746 /* If this file's name does not contain a recognized suffix,
7747 record it as explicit linker input. */
7750 explicit_link_files
[i
] = 1;
7752 /* Clear the delete-on-failure queue, deleting the files in it
7753 if this compilation failed. */
7755 if (this_file_error
)
7757 delete_failure_queue ();
7760 /* If this compilation succeeded, don't delete those files later. */
7761 clear_failure_queue ();
7764 /* Reset the input file name to the first compile/object file name, for use
7765 with %b in LINK_SPEC. We use the first input file that we can find
7766 a compiler to compile it instead of using infiles.language since for
7767 languages other than C we use aliases that we then lookup later. */
7772 for (i
= 0; i
< n_infiles
; i
++)
7773 if (infiles
[i
].incompiler
7774 || (infiles
[i
].language
&& infiles
[i
].language
[0] != '*'))
7776 set_input (infiles
[i
].name
);
7783 /* Make sure INPUT_FILE_NUMBER points to first available open
7785 input_file_number
= n_infiles
;
7786 if (lang_specific_pre_link ())
7791 /* If we have to run the linker, do it now. */
7794 driver::maybe_run_linker (const char *argv0
) const
7797 int linker_was_run
= 0;
7798 int num_linker_inputs
;
7800 /* Determine if there are any linker input files. */
7801 num_linker_inputs
= 0;
7802 for (i
= 0; (int) i
< n_infiles
; i
++)
7803 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
7804 num_linker_inputs
++;
7806 /* Run ld to link all the compiler output files. */
7808 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
7810 int tmp
= execution_count
;
7814 #if HAVE_LTO_PLUGIN > 0
7815 #if HAVE_LTO_PLUGIN == 2
7816 const char *fno_use_linker_plugin
= "fno-use-linker-plugin";
7818 const char *fuse_linker_plugin
= "fuse-linker-plugin";
7822 /* We'll use ld if we can't find collect2. */
7823 if (! strcmp (linker_name_spec
, "collect2"))
7825 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
7827 linker_name_spec
= "ld";
7830 #if HAVE_LTO_PLUGIN > 0
7831 #if HAVE_LTO_PLUGIN == 2
7832 if (!switch_matches (fno_use_linker_plugin
,
7833 fno_use_linker_plugin
7834 + strlen (fno_use_linker_plugin
), 0))
7836 if (switch_matches (fuse_linker_plugin
,
7838 + strlen (fuse_linker_plugin
), 0))
7841 char *temp_spec
= find_a_file (&exec_prefixes
,
7842 LTOPLUGINSONAME
, R_OK
,
7845 fatal_error ("-fuse-linker-plugin, but %s not found",
7847 linker_plugin_file_spec
= convert_white_space (temp_spec
);
7850 lto_gcc_spec
= argv0
;
7853 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
7855 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
7856 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
7858 if (print_subprocess_help
== 1)
7860 printf (_("\nLinker options\n==============\n\n"));
7861 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
7862 " to the linker.\n\n"));
7865 int value
= do_spec (link_command_spec
);
7868 linker_was_run
= (tmp
!= execution_count
);
7871 /* If options said don't run linker,
7872 complain about input files to be given to the linker. */
7874 if (! linker_was_run
&& !seen_error ())
7875 for (i
= 0; (int) i
< n_infiles
; i
++)
7876 if (explicit_link_files
[i
]
7877 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
7878 warning (0, "%s: linker input file unused because linking not done",
7882 /* The end of "main". */
7885 driver::final_actions () const
7887 /* Delete some or all of the temporary files we made. */
7890 delete_failure_queue ();
7891 delete_temp_files ();
7893 if (print_help_list
)
7895 printf (("\nFor bug reporting instructions, please see:\n"));
7896 printf ("%s\n", bug_report_url
);
7900 /* Determine what the exit code of the driver should be. */
7903 driver::get_exit_code () const
7905 return (signal_count
!= 0 ? 2
7906 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
7910 /* Find the proper compilation spec for the file name NAME,
7911 whose length is LENGTH. LANGUAGE is the specified language,
7912 or 0 if this file is to be passed to the linker. */
7914 static struct compiler
*
7915 lookup_compiler (const char *name
, size_t length
, const char *language
)
7917 struct compiler
*cp
;
7919 /* If this was specified by the user to be a linker input, indicate that. */
7920 if (language
!= 0 && language
[0] == '*')
7923 /* Otherwise, look for the language, if one is spec'd. */
7926 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7927 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
7930 error ("language %s not recognized", language
);
7934 /* Look for a suffix. */
7935 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7937 if (/* The suffix `-' matches only the file name `-'. */
7938 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7939 || (strlen (cp
->suffix
) < length
7940 /* See if the suffix matches the end of NAME. */
7941 && !strcmp (cp
->suffix
,
7942 name
+ length
- strlen (cp
->suffix
))
7947 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
7948 /* Look again, but case-insensitively this time. */
7950 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7952 if (/* The suffix `-' matches only the file name `-'. */
7953 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7954 || (strlen (cp
->suffix
) < length
7955 /* See if the suffix matches the end of NAME. */
7956 && ((!strcmp (cp
->suffix
,
7957 name
+ length
- strlen (cp
->suffix
))
7958 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
7959 && !strcasecmp (cp
->suffix
,
7960 name
+ length
- strlen (cp
->suffix
)))
7966 if (cp
>= compilers
)
7968 if (cp
->spec
[0] != '@')
7969 /* A non-alias entry: return it. */
7972 /* An alias entry maps a suffix to a language.
7973 Search for the language; pass 0 for NAME and LENGTH
7974 to avoid infinite recursion if language not found. */
7975 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
7981 save_string (const char *s
, int len
)
7983 char *result
= XNEWVEC (char, len
+ 1);
7985 memcpy (result
, s
, len
);
7991 pfatal_with_name (const char *name
)
7993 perror_with_name (name
);
7994 delete_temp_files ();
7999 perror_with_name (const char *name
)
8001 error ("%s: %m", name
);
8005 validate_switches_from_spec (const char *spec
, bool user
)
8007 const char *p
= spec
;
8010 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
8011 /* We have a switch spec. */
8012 p
= validate_switches (p
+ 1, user
);
8016 validate_all_switches (void)
8018 struct compiler
*comp
;
8019 struct spec_list
*spec
;
8021 for (comp
= compilers
; comp
->spec
; comp
++)
8022 validate_switches_from_spec (comp
->spec
, false);
8024 /* Look through the linked list of specs read from the specs file. */
8025 for (spec
= specs
; spec
; spec
= spec
->next
)
8026 validate_switches_from_spec (*spec
->ptr_spec
, spec
->user_p
);
8028 validate_switches_from_spec (link_command_spec
, false);
8031 /* Look at the switch-name that comes after START
8032 and mark as valid all supplied switches that match it. */
8035 validate_switches (const char *start
, bool user_spec
)
8037 const char *p
= start
;
8041 bool suffix
= false;
8042 bool starred
= false;
8044 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
8053 if (*p
== '.' || *p
== ',')
8057 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
8058 || *p
== ',' || *p
== '.' || *p
== '@')
8063 starred
= true, p
++;
8069 /* Mark all matching switches as valid. */
8070 for (i
= 0; i
< n_switches
; i
++)
8071 if (!strncmp (switches
[i
].part1
, atom
, len
)
8072 && (starred
|| switches
[i
].part1
[len
] == '\0')
8073 && (switches
[i
].known
|| user_spec
))
8074 switches
[i
].validated
= true;
8078 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
8081 if (*p
&& p
[-1] == ':')
8083 while (*p
&& *p
!= ';' && *p
!= '}')
8088 if (*p
== '{' || *p
== '<')
8089 p
= validate_switches (p
+1, user_spec
);
8090 else if (p
[0] == 'W' && p
[1] == '{')
8091 p
= validate_switches (p
+2, user_spec
);
8098 if (*p
&& p
[-1] == ';')
8112 static struct mdswitchstr
*mdswitches
;
8113 static int n_mdswitches
;
8115 /* Check whether a particular argument was used. The first time we
8116 canonicalize the switches to keep only the ones we care about. */
8119 used_arg (const char *p
, int len
)
8124 const char *replace
;
8129 static struct mswitchstr
*mswitches
;
8130 static int n_mswitches
;
8135 struct mswitchstr
*matches
;
8139 /* Break multilib_matches into the component strings of string
8140 and replacement string. */
8141 for (q
= multilib_matches
; *q
!= '\0'; q
++)
8146 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
8148 q
= multilib_matches
;
8157 fatal_error ("multilib spec %qs is invalid",
8162 matches
[i
].len
= q
- matches
[i
].str
;
8164 matches
[i
].replace
= ++q
;
8165 while (*q
!= ';' && *q
!= '\0')
8168 goto invalid_matches
;
8171 matches
[i
].rep_len
= q
- matches
[i
].replace
;
8177 /* Now build a list of the replacement string for switches that we care
8178 about. Make sure we allocate at least one entry. This prevents
8179 xmalloc from calling fatal, and prevents us from re-executing this
8182 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
8183 for (i
= 0; i
< n_switches
; i
++)
8184 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
8186 int xlen
= strlen (switches
[i
].part1
);
8187 for (j
= 0; j
< cnt
; j
++)
8188 if (xlen
== matches
[j
].len
8189 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
8191 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
8192 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
8193 mswitches
[n_mswitches
].replace
= (char *) 0;
8194 mswitches
[n_mswitches
].rep_len
= 0;
8200 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
8201 on the command line nor any options mutually incompatible with
8203 for (i
= 0; i
< n_mdswitches
; i
++)
8207 for (q
= multilib_options
; *q
!= '\0'; *q
&& q
++)
8213 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
8214 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
8216 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8223 if (*q
!= ' ' && *q
!= '\0')
8225 while (*r
!= ' ' && *r
!= '\0')
8228 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8231 if (used_arg (r
, q
- r
))
8236 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
8237 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
8238 mswitches
[n_mswitches
].replace
= (char *) 0;
8239 mswitches
[n_mswitches
].rep_len
= 0;
8252 for (i
= 0; i
< n_mswitches
; i
++)
8253 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
8260 default_arg (const char *p
, int len
)
8264 for (i
= 0; i
< n_mdswitches
; i
++)
8265 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
8271 /* Work out the subdirectory to use based on the options. The format of
8272 multilib_select is a list of elements. Each element is a subdirectory
8273 name followed by a list of options followed by a semicolon. The format
8274 of multilib_exclusions is the same, but without the preceding
8275 directory. First gcc will check the exclusions, if none of the options
8276 beginning with an exclamation point are present, and all of the other
8277 options are present, then we will ignore this completely. Passing
8278 that, gcc will consider each multilib_select in turn using the same
8279 rules for matching the options. If a match is found, that subdirectory
8281 A subdirectory name is optionally followed by a colon and the corresponding
8285 set_multilib_dir (void)
8288 unsigned int this_path_len
;
8289 const char *this_path
, *this_arg
;
8290 const char *start
, *end
;
8292 int ok
, ndfltok
, first
;
8295 start
= multilib_defaults
;
8296 while (*start
== ' ' || *start
== '\t')
8298 while (*start
!= '\0')
8301 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
8303 while (*start
== ' ' || *start
== '\t')
8311 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
8312 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
8314 while (*start
== ' ' || *start
== '\t')
8320 for (end
= start
+ 1;
8321 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
8324 obstack_grow (&multilib_obstack
, start
, end
- start
);
8325 obstack_1grow (&multilib_obstack
, 0);
8326 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
8327 mdswitches
[i
++].len
= end
- start
;
8334 p
= multilib_exclusions
;
8337 /* Ignore newlines. */
8344 /* Check the arguments. */
8351 fatal_error ("multilib exclusions %qs is invalid",
8352 multilib_exclusions
);
8362 while (*p
!= ' ' && *p
!= ';')
8365 goto invalid_exclusions
;
8369 if (*this_arg
!= '!')
8377 ok
= used_arg (this_arg
, p
- this_arg
);
8392 p
= multilib_select
;
8394 /* Append multilib reuse rules if any. With those rules, we can reuse
8395 one multilib for certain different options sets. */
8396 if (strlen (multilib_reuse
) > 0)
8397 p
= concat (p
, multilib_reuse
, NULL
);
8401 /* Ignore newlines. */
8408 /* Get the initial path. */
8415 fatal_error ("multilib select %qs %qs is invalid",
8416 multilib_select
, multilib_reuse
);
8420 this_path_len
= p
- this_path
;
8422 /* Check the arguments. */
8429 goto invalid_select
;
8438 while (*p
!= ' ' && *p
!= ';')
8441 goto invalid_select
;
8445 if (*this_arg
!= '!')
8453 /* If this is a default argument, we can just ignore it.
8454 This is true even if this_arg begins with '!'. Beginning
8455 with '!' does not mean that this argument is necessarily
8456 inappropriate for this library: it merely means that
8457 there is a more specific library which uses this
8458 argument. If this argument is a default, we need not
8459 consider that more specific library. */
8460 ok
= used_arg (this_arg
, p
- this_arg
);
8467 if (default_arg (this_arg
, p
- this_arg
))
8476 if (this_path_len
!= 1
8477 || this_path
[0] != '.')
8479 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
8482 strncpy (new_multilib_dir
, this_path
, this_path_len
);
8483 new_multilib_dir
[this_path_len
] = '\0';
8484 q
= strchr (new_multilib_dir
, ':');
8487 multilib_dir
= new_multilib_dir
;
8494 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
8496 while (q
< end
&& *q
!= ':')
8500 const char *q2
= q
+ 1, *ml_end
= end
;
8501 char *new_multilib_os_dir
;
8503 while (q2
< end
&& *q2
!= ':')
8507 if (ml_end
- q
== 1)
8508 multilib_os_dir
= xstrdup (".");
8511 new_multilib_os_dir
= XNEWVEC (char, ml_end
- q
);
8512 memcpy (new_multilib_os_dir
, q
+ 1, ml_end
- q
- 1);
8513 new_multilib_os_dir
[ml_end
- q
- 1] = '\0';
8514 multilib_os_dir
= new_multilib_os_dir
;
8517 if (q2
< end
&& *q2
== ':')
8519 char *new_multiarch_dir
= XNEWVEC (char, end
- q2
);
8520 memcpy (new_multiarch_dir
, q2
+ 1, end
- q2
- 1);
8521 new_multiarch_dir
[end
- q2
- 1] = '\0';
8522 multiarch_dir
= new_multiarch_dir
;
8531 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
8532 && strcmp (multilib_os_dir
, ".") == 0)
8534 free (CONST_CAST (char *, multilib_os_dir
));
8535 multilib_os_dir
= NULL
;
8537 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
8538 multilib_os_dir
= multilib_dir
;
8541 /* Print out the multiple library subdirectory selection
8542 information. This prints out a series of lines. Each line looks
8543 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
8544 required. Only the desired options are printed out, the negative
8545 matches. The options are print without a leading dash. There are
8546 no spaces to make it easy to use the information in the shell.
8547 Each subdirectory is printed only once. This assumes the ordering
8548 generated by the genmultilib script. Also, we leave out ones that match
8552 print_multilib_info (void)
8554 const char *p
= multilib_select
;
8555 const char *last_path
= 0, *this_path
;
8557 unsigned int last_path_len
= 0;
8562 /* Ignore newlines. */
8569 /* Get the initial path. */
8576 fatal_error ("multilib select %qs is invalid", multilib_select
);
8582 /* When --disable-multilib was used but target defines
8583 MULTILIB_OSDIRNAMES, entries starting with .: (and not starting
8584 with .:: for multiarch configurations) are there just to find
8585 multilib_os_dir, so skip them from output. */
8586 if (this_path
[0] == '.' && this_path
[1] == ':' && this_path
[2] != ':')
8589 /* Check for matches with the multilib_exclusions. We don't bother
8590 with the '!' in either list. If any of the exclusion rules match
8591 all of its options with the select rule, we skip it. */
8593 const char *e
= multilib_exclusions
;
8594 const char *this_arg
;
8599 /* Ignore newlines. */
8606 /* Check the arguments. */
8615 fatal_error ("multilib exclusion %qs is invalid",
8616 multilib_exclusions
);
8627 while (*e
!= ' ' && *e
!= ';')
8630 goto invalid_exclusion
;
8638 int len
= e
- this_arg
;
8641 goto invalid_select
;
8645 while (*q
!= ' ' && *q
!= ';')
8648 goto invalid_select
;
8652 if (! strncmp (arg
, this_arg
,
8653 (len
< q
- arg
) ? q
- arg
: len
)
8654 || default_arg (this_arg
, e
- this_arg
))
8684 /* If this is a duplicate, skip it. */
8685 skip
= (last_path
!= 0
8686 && (unsigned int) (p
- this_path
) == last_path_len
8687 && ! filename_ncmp (last_path
, this_path
, last_path_len
));
8689 last_path
= this_path
;
8690 last_path_len
= p
- this_path
;
8693 /* If this directory requires any default arguments, we can skip
8694 it. We will already have printed a directory identical to
8695 this one which does not require that default argument. */
8706 goto invalid_select
;
8713 while (*q
!= ' ' && *q
!= ';')
8716 goto invalid_select
;
8721 && default_arg (arg
, q
- arg
))
8736 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
8747 goto invalid_select
;
8755 use_arg
= *p
!= '!';
8760 while (*p
!= ' ' && *p
!= ';')
8763 goto invalid_select
;
8775 /* If there are extra options, print them now. */
8776 if (multilib_extra
&& *multilib_extra
)
8778 int print_at
= TRUE
;
8781 for (q
= multilib_extra
; *q
!= '\0'; q
++)
8802 /* getenv built-in spec function.
8804 Returns the value of the environment variable given by its first
8805 argument, concatenated with the second argument. If the
8806 environment variable is not defined, a fatal error is issued. */
8809 getenv_spec_function (int argc
, const char **argv
)
8819 value
= getenv (argv
[0]);
8821 fatal_error ("environment variable %qs not defined", argv
[0]);
8823 /* We have to escape every character of the environment variable so
8824 they are not interpreted as active spec characters. A
8825 particularly painful case is when we are reading a variable
8826 holding a windows path complete with \ separators. */
8827 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
8828 result
= XNEWVAR (char, len
);
8829 for (ptr
= result
; *value
; ptr
+= 2)
8835 strcpy (ptr
, argv
[1]);
8840 /* if-exists built-in spec function.
8842 Checks to see if the file specified by the absolute pathname in
8843 ARGS exists. Returns that pathname if found.
8845 The usual use for this function is to check for a library file
8846 (whose name has been expanded with %s). */
8849 if_exists_spec_function (int argc
, const char **argv
)
8851 /* Must have only one argument. */
8852 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8858 /* if-exists-else built-in spec function.
8860 This is like if-exists, but takes an additional argument which
8861 is returned if the first argument does not exist. */
8864 if_exists_else_spec_function (int argc
, const char **argv
)
8866 /* Must have exactly two arguments. */
8870 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8876 /* sanitize built-in spec function.
8878 This returns non-NULL, if sanitizing address, thread or
8879 any of the undefined behavior sanitizers. */
8882 sanitize_spec_function (int argc
, const char **argv
)
8887 if (strcmp (argv
[0], "address") == 0)
8888 return (flag_sanitize
& SANITIZE_USER_ADDRESS
) ? "" : NULL
;
8889 if (strcmp (argv
[0], "kernel-address") == 0)
8890 return (flag_sanitize
& SANITIZE_KERNEL_ADDRESS
) ? "" : NULL
;
8891 if (strcmp (argv
[0], "thread") == 0)
8892 return (flag_sanitize
& SANITIZE_THREAD
) ? "" : NULL
;
8893 if (strcmp (argv
[0], "undefined") == 0)
8894 return ((flag_sanitize
& (SANITIZE_UNDEFINED
| SANITIZE_NONDEFAULT
))
8895 && !flag_sanitize_undefined_trap_on_error
) ? "" : NULL
;
8896 if (strcmp (argv
[0], "leak") == 0)
8897 return ((flag_sanitize
8898 & (SANITIZE_ADDRESS
| SANITIZE_LEAK
| SANITIZE_THREAD
))
8899 == SANITIZE_LEAK
) ? "" : NULL
;
8903 /* replace-outfile built-in spec function.
8905 This looks for the first argument in the outfiles array's name and
8906 replaces it with the second argument. */
8909 replace_outfile_spec_function (int argc
, const char **argv
)
8912 /* Must have exactly two arguments. */
8916 for (i
= 0; i
< n_infiles
; i
++)
8918 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
8919 outfiles
[i
] = xstrdup (argv
[1]);
8924 /* remove-outfile built-in spec function.
8926 * This looks for the first argument in the outfiles array's name and
8930 remove_outfile_spec_function (int argc
, const char **argv
)
8933 /* Must have exactly one argument. */
8937 for (i
= 0; i
< n_infiles
; i
++)
8939 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
8945 /* Given two version numbers, compares the two numbers.
8946 A version number must match the regular expression
8947 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
8950 compare_version_strings (const char *v1
, const char *v2
)
8955 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
8956 REG_EXTENDED
| REG_NOSUB
) != 0)
8958 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
8959 if (rresult
== REG_NOMATCH
)
8960 fatal_error ("invalid version number %qs", v1
);
8961 else if (rresult
!= 0)
8963 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
8964 if (rresult
== REG_NOMATCH
)
8965 fatal_error ("invalid version number %qs", v2
);
8966 else if (rresult
!= 0)
8969 return strverscmp (v1
, v2
);
8973 /* version_compare built-in spec function.
8975 This takes an argument of the following form:
8977 <comparison-op> <arg1> [<arg2>] <switch> <result>
8979 and produces "result" if the comparison evaluates to true,
8980 and nothing if it doesn't.
8982 The supported <comparison-op> values are:
8984 >= true if switch is a later (or same) version than arg1
8986 < true if switch is an earlier version than arg1
8988 >< true if switch is arg1 or later, and earlier than arg2
8989 <> true if switch is earlier than arg1 or is arg2 or later
8991 If the switch is not present, the condition is false unless
8992 the first character of the <comparison-op> is '!'.
8995 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
8996 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
8999 version_compare_spec_function (int argc
, const char **argv
)
9003 const char *switch_value
= NULL
;
9008 fatal_error ("too few arguments to %%:version-compare");
9009 if (argv
[0][0] == '\0')
9011 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
9013 if (argc
!= nargs
+ 3)
9014 fatal_error ("too many arguments to %%:version-compare");
9016 switch_len
= strlen (argv
[nargs
+ 1]);
9017 for (i
= 0; i
< n_switches
; i
++)
9018 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
9019 && check_live_switch (i
, switch_len
))
9020 switch_value
= switches
[i
].part1
+ switch_len
;
9022 if (switch_value
== NULL
)
9026 comp1
= compare_version_strings (switch_value
, argv
[1]);
9028 comp2
= compare_version_strings (switch_value
, argv
[2]);
9030 comp2
= -1; /* This value unused. */
9033 switch (argv
[0][0] << 8 | argv
[0][1])
9035 case '>' << 8 | '=':
9036 result
= comp1
>= 0;
9038 case '!' << 8 | '<':
9039 result
= comp1
>= 0 || switch_value
== NULL
;
9044 case '!' << 8 | '>':
9045 result
= comp1
< 0 || switch_value
== NULL
;
9047 case '>' << 8 | '<':
9048 result
= comp1
>= 0 && comp2
< 0;
9050 case '<' << 8 | '>':
9051 result
= comp1
< 0 || comp2
>= 0;
9055 fatal_error ("unknown operator %qs in %%:version-compare", argv
[0]);
9060 return argv
[nargs
+ 2];
9063 /* %:include builtin spec function. This differs from %include in that it
9064 can be nested inside a spec, and thus be conditionalized. It takes
9065 one argument, the filename, and looks for it in the startfile path.
9066 The result is always NULL, i.e. an empty expansion. */
9069 include_spec_function (int argc
, const char **argv
)
9076 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
9077 read_specs (file
? file
: argv
[0], false, false);
9082 /* %:find-file spec function. This function replaces its argument by
9083 the file found through find_file, that is the -print-file-name gcc
9086 find_file_spec_function (int argc
, const char **argv
)
9093 file
= find_file (argv
[0]);
9098 /* %:find-plugindir spec function. This function replaces its argument
9099 by the -iplugindir=<dir> option. `dir' is found through find_file, that
9100 is the -print-file-name gcc program option. */
9102 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
9109 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
9114 /* %:print-asm-header spec function. Print a banner to say that the
9115 following output is from the assembler. */
9118 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
9119 const char **argv ATTRIBUTE_UNUSED
)
9121 printf (_("Assembler options\n=================\n\n"));
9122 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
9127 /* Get a random number for -frandom-seed */
9129 static unsigned HOST_WIDE_INT
9130 get_random_number (void)
9132 unsigned HOST_WIDE_INT ret
= 0;
9135 fd
= open ("/dev/urandom", O_RDONLY
);
9138 read (fd
, &ret
, sizeof (HOST_WIDE_INT
));
9144 /* Get some more or less random data. */
9145 #ifdef HAVE_GETTIMEOFDAY
9149 gettimeofday (&tv
, NULL
);
9150 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
9154 time_t now
= time (NULL
);
9156 if (now
!= (time_t)-1)
9157 ret
= (unsigned) now
;
9161 return ret
^ getpid ();
9164 /* %:compare-debug-dump-opt spec function. Save the last argument,
9165 expected to be the last -fdump-final-insns option, or generate a
9169 compare_debug_dump_opt_spec_function (int arg
,
9170 const char **argv ATTRIBUTE_UNUSED
)
9175 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
9178 fatal_error ("too many arguments to %%:compare-debug-dump-opt");
9180 do_spec_2 ("%{fdump-final-insns=*:%*}");
9181 do_spec_1 (" ", 0, NULL
);
9183 if (argbuf
.length () > 0
9184 && strcmp (argv
[argbuf
.length () - 1], "."))
9189 name
= xstrdup (argv
[argbuf
.length () - 1]);
9194 const char *ext
= NULL
;
9196 if (argbuf
.length () > 0)
9198 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
9201 else if (!compare_debug
)
9204 do_spec_2 ("%g.gkd");
9206 do_spec_1 (" ", 0, NULL
);
9208 gcc_assert (argbuf
.length () > 0);
9210 name
= concat (argbuf
.last (), ext
, NULL
);
9212 ret
= concat ("-fdump-final-insns=", name
, NULL
);
9215 which
= compare_debug
< 0;
9216 debug_check_temp_file
[which
] = name
;
9220 unsigned HOST_WIDE_INT value
= get_random_number ();
9222 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
9228 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
9239 static const char *debug_auxbase_opt
;
9241 /* %:compare-debug-self-opt spec function. Expands to the options
9242 that are to be passed in the second compilation of
9246 compare_debug_self_opt_spec_function (int arg
,
9247 const char **argv ATTRIBUTE_UNUSED
)
9250 fatal_error ("too many arguments to %%:compare-debug-self-opt");
9252 if (compare_debug
>= 0)
9255 do_spec_2 ("%{c|S:%{o*:%*}}");
9256 do_spec_1 (" ", 0, NULL
);
9258 if (argbuf
.length () > 0)
9259 debug_auxbase_opt
= concat ("-auxbase-strip ",
9263 debug_auxbase_opt
= NULL
;
9266 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
9267 %<fdump-final-insns=* -w -S -o %j \
9268 %{!fcompare-debug-second:-fcompare-debug-second} \
9269 ", compare_debug_opt
, NULL
);
9272 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
9273 options that are to be passed in the second compilation of
9274 compare-debug. It expects, as an argument, the basename of the
9275 current input file name, with the .gk suffix appended to it. */
9278 compare_debug_auxbase_opt_spec_function (int arg
,
9285 fatal_error ("too few arguments to %%:compare-debug-auxbase-opt");
9288 fatal_error ("too many arguments to %%:compare-debug-auxbase-opt");
9290 if (compare_debug
>= 0)
9293 len
= strlen (argv
[0]);
9294 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
9295 fatal_error ("argument to %%:compare-debug-auxbase-opt "
9296 "does not end in .gk");
9298 if (debug_auxbase_opt
)
9299 return debug_auxbase_opt
;
9301 #define OPT "-auxbase "
9304 name
= (char*) xmalloc (sizeof (OPT
) + len
);
9305 memcpy (name
, OPT
, sizeof (OPT
) - 1);
9306 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
9307 name
[sizeof (OPT
) - 1 + len
] = '\0';
9314 /* %:pass-through-libs spec function. Finds all -l options and input
9315 file names in the lib spec passed to it, and makes a list of them
9316 prepended with the plugin option to cause them to be passed through
9317 to the final link after all the new object files have been added. */
9320 pass_through_libs_spec_func (int argc
, const char **argv
)
9322 char *prepended
= xstrdup (" ");
9324 /* Shlemiel the painter's algorithm. Innately horrible, but at least
9325 we know that there will never be more than a handful of strings to
9326 concat, and it's only once per run, so it's not worth optimising. */
9327 for (n
= 0; n
< argc
; n
++)
9329 char *old
= prepended
;
9330 /* Anything that isn't an option is a full path to an output
9331 file; pass it through if it ends in '.a'. Among options,
9333 if (argv
[n
][0] == '-' && argv
[n
][1] == 'l')
9335 const char *lopt
= argv
[n
] + 2;
9336 /* Handle both joined and non-joined -l options. If for any
9337 reason there's a trailing -l with no joined or following
9338 arg just discard it. */
9339 if (!*lopt
&& ++n
>= argc
)
9343 prepended
= concat (prepended
, "-plugin-opt=-pass-through=-l",
9346 else if (!strcmp (".a", argv
[n
] + strlen (argv
[n
]) - 2))
9348 prepended
= concat (prepended
, "-plugin-opt=-pass-through=",
9349 argv
[n
], " ", NULL
);
9351 if (prepended
!= old
)
9357 /* %:replace-extension spec function. Replaces the extension of the
9358 first argument with the second argument. */
9361 replace_extension_spec_func (int argc
, const char **argv
)
9369 fatal_error ("too few arguments to %%:replace-extension");
9371 name
= xstrdup (argv
[0]);
9373 for (i
= strlen (name
) - 1; i
>= 0; i
--)
9374 if (IS_DIR_SEPARATOR (name
[i
]))
9377 p
= strrchr (name
+ i
+ 1, '.');
9381 result
= concat (name
, argv
[1], NULL
);
9387 /* Insert backslash before spaces in ORIG (usually a file path), to
9388 avoid being broken by spec parser.
9390 This function is needed as do_spec_1 treats white space (' ' and '\t')
9391 as the end of an argument. But in case of -plugin /usr/gcc install/xxx.so,
9392 the file name should be treated as a single argument rather than being
9393 broken into multiple. Solution is to insert '\\' before the space in a
9396 This function converts and only converts all occurrence of ' '
9397 to '\\' + ' ' and '\t' to '\\' + '\t'. For example:
9401 "a\\ b" -> "a\\\\ b"
9403 orig: input null-terminating string that was allocated by xalloc. The
9404 memory it points to might be freed in this function. Behavior undefined
9405 if ORIG wasn't xalloced or was freed already at entry.
9407 Return: ORIG if no conversion needed. Otherwise a newly allocated string
9408 that was converted from ORIG. */
9411 convert_white_space (char *orig
)
9413 int len
, number_of_space
= 0;
9415 for (len
= 0; orig
[len
]; len
++)
9416 if (orig
[len
] == ' ' || orig
[len
] == '\t') number_of_space
++;
9418 if (number_of_space
)
9420 char *new_spec
= (char *) xmalloc (len
+ number_of_space
+ 1);
9422 for (j
= 0, k
= 0; j
<= len
; j
++, k
++)
9424 if (orig
[j
] == ' ' || orig
[j
] == '\t')
9425 new_spec
[k
++] = '\\';
9426 new_spec
[k
] = orig
[j
];