1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987-2014 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
20 /* This program is the user interface to the C compiler and possibly to
21 other compilers. It is used because compilation is a complicated procedure
22 which involves running several programs and passing temporary files between
23 them, forwarding the users switches to those programs selectively,
24 and deleting the temporary files at the end.
26 CC recognizes how to compile each input file by suffixes in the file names.
27 Once it knows which kind of compilation to perform, the procedure for
28 compilation is specified by a string called a "spec". */
32 #include "coretypes.h"
33 #include "multilib.h" /* before tm.h */
40 #include "diagnostic.h"
45 #include "filenames.h"
47 /* By default there is no special suffix for target executables. */
48 /* FIXME: when autoconf is fixed, remove the host check - dj */
49 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
50 #define HAVE_TARGET_EXECUTABLE_SUFFIX
53 /* By default there is no special suffix for host executables. */
54 #ifdef HOST_EXECUTABLE_SUFFIX
55 #define HAVE_HOST_EXECUTABLE_SUFFIX
57 #define HOST_EXECUTABLE_SUFFIX ""
60 /* By default, the suffix for target object files is ".o". */
61 #ifdef TARGET_OBJECT_SUFFIX
62 #define HAVE_TARGET_OBJECT_SUFFIX
64 #define TARGET_OBJECT_SUFFIX ".o"
67 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
69 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
70 #ifndef LIBRARY_PATH_ENV
71 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
74 /* If a stage of compilation returns an exit status >= 1,
75 compilation of that file ceases. */
77 #define MIN_FATAL_STATUS 1
79 /* Flag set by cppspec.c to 1. */
82 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
83 static bool at_file_supplied
;
85 /* Definition of string containing the arguments given to configure. */
86 #include "configargs.h"
88 /* Flag saying to print the command line options understood by gcc and its
91 static int print_help_list
;
93 /* Flag saying to print the version of gcc and its sub-processes. */
95 static int print_version
;
97 /* Flag indicating whether we should ONLY print the command and
98 arguments (like verbose_flag) without executing the command.
99 Displayed arguments are quoted so that the generated command
100 line is suitable for execution. This is intended for use in
101 shell scripts to capture the driver-generated command line. */
102 static int verbose_only_flag
;
104 /* Flag indicating how to print command line options of sub-processes. */
106 static int print_subprocess_help
;
108 /* Linker suffix passed to -fuse-ld=... */
109 static const char *use_ld
;
111 /* Whether we should report subprocess execution times to a file. */
113 FILE *report_times_to_file
= NULL
;
115 /* Nonzero means place this string before uses of /, so that include
116 and library files can be found in an alternate location. */
118 #ifdef TARGET_SYSTEM_ROOT
119 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
121 static const char *target_system_root
= 0;
124 /* Nonzero means pass the updated target_system_root to the compiler. */
126 static int target_system_root_changed
;
128 /* Nonzero means append this string to target_system_root. */
130 static const char *target_sysroot_suffix
= 0;
132 /* Nonzero means append this string to target_system_root for headers. */
134 static const char *target_sysroot_hdrs_suffix
= 0;
136 /* Nonzero means write "temp" files in source directory
137 and use the source file's name in them, and don't delete them. */
139 static enum save_temps
{
140 SAVE_TEMPS_NONE
, /* no -save-temps */
141 SAVE_TEMPS_CWD
, /* -save-temps in current directory */
142 SAVE_TEMPS_OBJ
/* -save-temps in object directory */
145 /* Output file to use to get the object directory for -save-temps=obj */
146 static char *save_temps_prefix
= 0;
147 static size_t save_temps_length
= 0;
149 /* The compiler version. */
151 static const char *compiler_version
;
153 /* The target version. */
155 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
157 /* The target machine. */
159 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
160 static const char *spec_host_machine
= DEFAULT_REAL_TARGET_MACHINE
;
162 /* List of offload targets. */
164 static char *offload_targets
= NULL
;
166 /* Nonzero if cross-compiling.
167 When -b is used, the value comes from the `specs' file. */
169 #ifdef CROSS_DIRECTORY_STRUCTURE
170 static const char *cross_compile
= "1";
172 static const char *cross_compile
= "0";
175 /* Greatest exit code of sub-processes that has been encountered up to
177 static int greatest_status
= 1;
179 /* This is the obstack which we use to allocate many strings. */
181 static struct obstack obstack
;
183 /* This is the obstack to build an environment variable to pass to
184 collect2 that describes all of the relevant switches of what to
185 pass the compiler in building the list of pointers to constructors
188 static struct obstack collect_obstack
;
190 /* Forward declaration for prototypes. */
194 static void init_spec (void);
195 static void store_arg (const char *, int, int);
196 static void insert_wrapper (const char *);
197 static char *load_specs (const char *);
198 static void read_specs (const char *, bool, bool);
199 static void set_spec (const char *, const char *, bool);
200 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
201 static char *build_search_list (const struct path_prefix
*, const char *,
203 static void xputenv (const char *);
204 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
206 static int access_check (const char *, int);
207 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
208 static void add_prefix (struct path_prefix
*, const char *, const char *,
210 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
211 const char *, int, int, int);
212 static char *skip_whitespace (char *);
213 static void delete_if_ordinary (const char *);
214 static void delete_temp_files (void);
215 static void delete_failure_queue (void);
216 static void clear_failure_queue (void);
217 static int check_live_switch (int, int);
218 static const char *handle_braces (const char *);
219 static inline bool input_suffix_matches (const char *, const char *);
220 static inline bool switch_matches (const char *, const char *, int);
221 static inline void mark_matching_switches (const char *, const char *, int);
222 static inline void process_marked_switches (void);
223 static const char *process_brace_body (const char *, const char *, const char *, int, int);
224 static const struct spec_function
*lookup_spec_function (const char *);
225 static const char *eval_spec_function (const char *, const char *);
226 static const char *handle_spec_function (const char *, bool *);
227 static char *save_string (const char *, int);
228 static void set_collect_gcc_options (void);
229 static int do_spec_1 (const char *, int, const char *);
230 static int do_spec_2 (const char *);
231 static void do_option_spec (const char *, const char *);
232 static void do_self_spec (const char *);
233 static const char *find_file (const char *);
234 static int is_directory (const char *, bool);
235 static const char *validate_switches (const char *, bool);
236 static void validate_all_switches (void);
237 static inline void validate_switches_from_spec (const char *, bool);
238 static void give_switch (int, int);
239 static int used_arg (const char *, int);
240 static int default_arg (const char *, int);
241 static void set_multilib_dir (void);
242 static void print_multilib_info (void);
243 static void perror_with_name (const char *);
244 static void display_help (void);
245 static void add_preprocessor_option (const char *, int);
246 static void add_assembler_option (const char *, int);
247 static void add_linker_option (const char *, int);
248 static void process_command (unsigned int, struct cl_decoded_option
*);
249 static int execute (void);
250 static void alloc_args (void);
251 static void clear_args (void);
252 static void fatal_signal (int);
253 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
254 static void init_gcc_specs (struct obstack
*, const char *, const char *,
257 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
258 static const char *convert_filename (const char *, int, int);
261 static void try_generate_repro (const char **argv
);
262 static const char *getenv_spec_function (int, const char **);
263 static const char *if_exists_spec_function (int, const char **);
264 static const char *if_exists_else_spec_function (int, const char **);
265 static const char *sanitize_spec_function (int, const char **);
266 static const char *replace_outfile_spec_function (int, const char **);
267 static const char *remove_outfile_spec_function (int, const char **);
268 static const char *version_compare_spec_function (int, const char **);
269 static const char *include_spec_function (int, const char **);
270 static const char *find_file_spec_function (int, const char **);
271 static const char *find_plugindir_spec_function (int, const char **);
272 static const char *print_asm_header_spec_function (int, const char **);
273 static const char *compare_debug_dump_opt_spec_function (int, const char **);
274 static const char *compare_debug_self_opt_spec_function (int, const char **);
275 static const char *compare_debug_auxbase_opt_spec_function (int, const char **);
276 static const char *pass_through_libs_spec_func (int, const char **);
277 static const char *replace_extension_spec_func (int, const char **);
278 static char *convert_white_space (char *);
280 /* The Specs Language
282 Specs are strings containing lines, each of which (if not blank)
283 is made up of a program name, and arguments separated by spaces.
284 The program name must be exact and start from root, since no path
285 is searched and it is unreliable to depend on the current working directory.
286 Redirection of input or output is not supported; the subprograms must
287 accept filenames saying what files to read and write.
289 In addition, the specs can contain %-sequences to substitute variable text
290 or for conditional text. Here is a table of all defined %-sequences.
291 Note that spaces are not generated automatically around the results of
292 expanding these sequences; therefore, you can concatenate them together
293 or with constant text in a single argument.
295 %% substitute one % into the program name or argument.
296 %i substitute the name of the input file being processed.
297 %b substitute the basename of the input file being processed.
298 This is the substring up to (and not including) the last period
299 and not including the directory unless -save-temps was specified
300 to put temporaries in a different location.
301 %B same as %b, but include the file suffix (text after the last period).
303 substitute a file name that has suffix SUFFIX and is chosen
304 once per compilation, and mark the argument a la %d. To reduce
305 exposure to denial-of-service attacks, the file name is now
306 chosen in a way that is hard to predict even when previously
307 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
308 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
309 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
310 had been pre-processed. Previously, %g was simply substituted
311 with a file name chosen once per compilation, without regard
312 to any appended suffix (which was therefore treated just like
313 ordinary text), making such attacks more likely to succeed.
315 like %g, but if -pipe is in effect, expands simply to "-".
317 like %g, but if -pipe is in effect, expands to nothing. (We have both
318 %| and %m to accommodate differences between system assemblers; see
319 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
321 like %g, but generates a new temporary file name even if %uSUFFIX
324 substitutes the last file name generated with %uSUFFIX, generating a
325 new one if there is no such last file name. In the absence of any
326 %uSUFFIX, this is just like %gSUFFIX, except they don't share
327 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
328 would involve the generation of two distinct file names, one
329 for each `%g.s' and another for each `%U.s'. Previously, %U was
330 simply substituted with a file name chosen for the previous %u,
331 without regard to any appended suffix.
333 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
334 writable, and if save-temps is off; otherwise, substitute the name
335 of a temporary file, just like %u. This temporary file is not
336 meant for communication between processes, but rather as a junk
339 substitutes .SUFFIX for the suffixes of a matched switch's args when
340 it is subsequently output with %*. SUFFIX is terminated by the next
342 %d marks the argument containing or following the %d as a
343 temporary file name, so that that file will be deleted if GCC exits
344 successfully. Unlike %g, this contributes no text to the argument.
345 %w marks the argument containing or following the %w as the
346 "output file" of this compilation. This puts the argument
347 into the sequence of arguments that %o will substitute later.
348 %V indicates that this compilation produces no "output file".
350 like %{...} but mark last argument supplied within
351 as a file to be deleted on failure.
352 %o substitutes the names of all the output files, with spaces
353 automatically placed around them. You should write spaces
354 around the %o as well or the results are undefined.
355 %o is for use in the specs for running the linker.
356 Input files whose names have no recognized suffix are not compiled
357 at all, but they are included among the output files, so they will
359 %O substitutes the suffix for object files. Note that this is
360 handled specially when it immediately follows %g, %u, or %U
361 (with or without a suffix argument) because of the need for
362 those to form complete file names. The handling is such that
363 %O is treated exactly as if it had already been substituted,
364 except that %g, %u, and %U do not currently support additional
365 SUFFIX characters following %O as they would following, for
367 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
368 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
369 and -B options) and -imultilib as necessary.
370 %s current argument is the name of a library or startup file of some sort.
371 Search for that file in a standard list of directories
372 and substitute the full name found.
373 %eSTR Print STR as an error message. STR is terminated by a newline.
374 Use this when inconsistent options are detected.
375 %nSTR Print STR as a notice. STR is terminated by a newline.
376 %x{OPTION} Accumulate an option for %X.
377 %X Output the accumulated linker options specified by compilations.
378 %Y Output the accumulated assembler options specified by compilations.
379 %Z Output the accumulated preprocessor options specified by compilations.
380 %a process ASM_SPEC as a spec.
381 This allows config.h to specify part of the spec for running as.
382 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
383 used here. This can be used to run a post-processor after the
384 assembler has done its job.
385 %D Dump out a -L option for each directory in startfile_prefixes.
386 If multilib_dir is set, extra entries are generated with it affixed.
387 %l process LINK_SPEC as a spec.
388 %L process LIB_SPEC as a spec.
389 %M Output multilib_os_dir.
390 %G process LIBGCC_SPEC as a spec.
391 %R Output the concatenation of target_system_root and
392 target_sysroot_suffix.
393 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
394 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
395 %C process CPP_SPEC as a spec.
396 %1 process CC1_SPEC as a spec.
397 %2 process CC1PLUS_SPEC as a spec.
398 %* substitute the variable part of a matched option. (See below.)
399 Note that each comma in the substituted string is replaced by
400 a single space. A space is appended after the last substition
401 unless there is more text in current sequence.
402 %<S remove all occurrences of -S from the command line.
403 Note - this command is position dependent. % commands in the
404 spec string before this one will see -S, % commands in the
405 spec string after this one will not.
406 %>S Similar to "%<S", but keep it in the GCC command line.
407 %<S* remove all occurrences of all switches beginning with -S from the
410 Call the named function FUNCTION, passing it ARGS. ARGS is
411 first processed as a nested spec string, then split into an
412 argument vector in the usual fashion. The function returns
413 a string which is processed as if it had appeared literally
414 as part of the current spec.
415 %{S} substitutes the -S switch, if that switch was given to GCC.
416 If that switch was not specified, this substitutes nothing.
417 Here S is a metasyntactic variable.
418 %{S*} substitutes all the switches specified to GCC whose names start
419 with -S. This is used for -o, -I, etc; switches that take
420 arguments. GCC considers `-o foo' as being one switch whose
421 name starts with `o'. %{o*} would substitute this text,
422 including the space; thus, two arguments would be generated.
423 %{S*&T*} likewise, but preserve order of S and T options (the order
424 of S and T in the spec is not significant). Can be any number
425 of ampersand-separated variables; for each the wild card is
426 optional. Useful for CPP as %{D*&U*&A*}.
428 %{S:X} substitutes X, if the -S switch was given to GCC.
429 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
430 %{S*:X} substitutes X if one or more switches whose names start
431 with -S was given to GCC. Normally X is substituted only
432 once, no matter how many such switches appeared. However,
433 if %* appears somewhere in X, then X will be substituted
434 once for each matching switch, with the %* replaced by the
435 part of that switch that matched the '*'. A space will be
436 appended after the last substition unless there is more
437 text in current sequence.
438 %{.S:X} substitutes X, if processing a file with suffix S.
439 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
440 %{,S:X} substitutes X, if processing a file which will use spec S.
441 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
443 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
444 combined with '!', '.', ',', and '*' as above binding stronger
446 If %* appears in X, all of the alternatives must be starred, and
447 only the first matching alternative is substituted.
448 %{%:function(args):X}
449 Call function named FUNCTION with args ARGS. If the function
450 returns non-NULL, then X is substituted, if it returns
451 NULL, it isn't substituted.
452 %{S:X; if S was given to GCC, substitutes X;
453 T:Y; else if T was given to GCC, substitutes Y;
454 :D} else substitutes D. There can be as many clauses as you need.
455 This may be combined with '.', '!', ',', '|', and '*' as above.
457 %(Spec) processes a specification defined in a specs file as *Spec:
459 The conditional text X in a %{S:X} or similar construct may contain
460 other nested % constructs or spaces, or even newlines. They are
461 processed as usual, as described above. Trailing white space in X is
462 ignored. White space may also appear anywhere on the left side of the
463 colon in these constructs, except between . or * and the corresponding
466 The -O, -f, -g, -m, and -W switches are handled specifically in these
467 constructs. If another value of -O or the negated form of a -f, -m, or
468 -W switch is found later in the command line, the earlier switch
469 value is ignored, except with {S*} where S is just one letter; this
470 passes all matching options.
472 The character | at the beginning of the predicate text is used to indicate
473 that a command should be piped to the following command, but only if -pipe
476 Note that it is built into GCC which switches take arguments and which
477 do not. You might think it would be useful to generalize this to
478 allow each compiler's spec to say which switches take arguments. But
479 this cannot be done in a consistent fashion. GCC cannot even decide
480 which input files have been specified without knowing which switches
481 take arguments, and it must know which input files to compile in order
482 to tell which compilers to run.
484 GCC also knows implicitly that arguments starting in `-l' are to be
485 treated as compiler output files, and passed to the linker in their
486 proper position among the other output files. */
488 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
490 /* config.h can define ASM_SPEC to provide extra args to the assembler
491 or extra switch-translations. */
496 /* config.h can define ASM_FINAL_SPEC to run a post processor after
497 the assembler has run. */
498 #ifndef ASM_FINAL_SPEC
499 #define ASM_FINAL_SPEC \
501 objcopy --extract-dwo \
502 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
503 %{c:%{o*:%:replace-extension(%{o*:%*} .dwo)}%{!o*:%b.dwo}}%{!c:%b.dwo} \n\
504 objcopy --strip-dwo \
505 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
509 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
510 or extra switch-translations. */
515 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
516 or extra switch-translations. */
521 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
522 or extra switch-translations. */
524 #define CC1PLUS_SPEC ""
527 /* config.h can define LINK_SPEC to provide extra args to the linker
528 or extra switch-translations. */
533 /* config.h can define LIB_SPEC to override the default libraries. */
535 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
538 /* When using -fsplit-stack we need to wrap pthread_create, in order
539 to initialize the stack guard. We always use wrapping, rather than
540 shared library ordering, and we keep the wrapper function in
541 libgcc. This is not yet a real spec, though it could become one;
542 it is currently just stuffed into LINK_SPEC. FIXME: This wrapping
543 only works with GNU ld and gold. */
544 #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
547 #define STATIC_LIBASAN_LIBS \
548 " %{static-libasan:%:include(libsanitizer.spec)%(link_libasan)}"
549 #ifdef LIBASAN_EARLY_SPEC
550 #define LIBASAN_SPEC STATIC_LIBASAN_LIBS
551 #elif defined(HAVE_LD_STATIC_DYNAMIC)
552 #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \
553 "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \
556 #define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS
560 #ifndef LIBASAN_EARLY_SPEC
561 #define LIBASAN_EARLY_SPEC ""
565 #define STATIC_LIBTSAN_LIBS \
566 " %{static-libtsan:%:include(libsanitizer.spec)%(link_libtsan)}"
567 #ifdef LIBTSAN_EARLY_SPEC
568 #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
569 #elif defined(HAVE_LD_STATIC_DYNAMIC)
570 #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \
571 "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
574 #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
578 #ifndef LIBTSAN_EARLY_SPEC
579 #define LIBTSAN_EARLY_SPEC ""
583 #define STATIC_LIBLSAN_LIBS \
584 " %{static-liblsan:%:include(libsanitizer.spec)%(link_liblsan)}"
585 #ifdef LIBLSAN_EARLY_SPEC
586 #define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS
587 #elif defined(HAVE_LD_STATIC_DYNAMIC)
588 #define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION \
589 "} -llsan %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
592 #define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS
596 #ifndef LIBLSAN_EARLY_SPEC
597 #define LIBLSAN_EARLY_SPEC ""
600 #ifndef LIBUBSAN_SPEC
601 #define STATIC_LIBUBSAN_LIBS \
602 " %{static-libubsan:%:include(libsanitizer.spec)%(link_libubsan)}"
603 #ifdef HAVE_LD_STATIC_DYNAMIC
604 #define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \
605 "} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
608 #define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS
612 /* Linker options for compressed debug sections. */
613 #if HAVE_LD_COMPRESS_DEBUG == 0
614 /* No linker support. */
615 #define LINK_COMPRESS_DEBUG_SPEC \
616 " %{gz*:%e-gz is not supported in this configuration} "
617 #elif HAVE_LD_COMPRESS_DEBUG == 1
618 /* GNU style on input, GNU ld options. Reject, not useful. */
619 #define LINK_COMPRESS_DEBUG_SPEC \
620 " %{gz*:%e-gz is not supported in this configuration} "
621 #elif HAVE_LD_COMPRESS_DEBUG == 2
622 /* GNU style, GNU gold options. */
623 #define LINK_COMPRESS_DEBUG_SPEC \
624 " %{gz|gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
625 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
626 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
627 #elif HAVE_LD_COMPRESS_DEBUG == 3
628 /* ELF gABI style. */
629 #define LINK_COMPRESS_DEBUG_SPEC \
630 " %{gz|gz=zlib:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
631 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
632 " %{gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
634 #error Unknown value for HAVE_LD_COMPRESS_DEBUG.
637 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
640 #if defined(REAL_LIBGCC_SPEC)
641 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
642 #elif defined(LINK_LIBGCC_SPECIAL_1)
643 /* Have gcc do the search for libgcc.a. */
644 #define LIBGCC_SPEC "libgcc.a%s"
646 #define LIBGCC_SPEC "-lgcc"
650 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
651 #ifndef STARTFILE_SPEC
652 #define STARTFILE_SPEC \
653 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
656 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
658 #define ENDFILE_SPEC ""
662 #define LINKER_NAME "collect2"
665 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
666 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
671 /* Assembler options for compressed debug sections. */
672 #if HAVE_LD_COMPRESS_DEBUG < 2
673 /* Reject if the linker cannot write compressed debug sections. */
674 #define ASM_COMPRESS_DEBUG_SPEC \
675 " %{gz*:%e-gz is not supported in this configuration} "
676 #else /* HAVE_LD_COMPRESS_DEBUG >= 2 */
677 #if HAVE_AS_COMPRESS_DEBUG == 0
678 /* No assembler support. Ignore silently. */
679 #define ASM_COMPRESS_DEBUG_SPEC \
681 #elif HAVE_AS_COMPRESS_DEBUG == 1
682 /* GNU style, GNU as options. */
683 #define ASM_COMPRESS_DEBUG_SPEC \
684 " %{gz|gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "}" \
685 " %{gz=none:" AS_NO_COMPRESS_DEBUG_OPTION "}" \
686 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
687 #elif HAVE_AS_COMPRESS_DEBUG == 2
688 /* ELF gABI style. */
689 #define ASM_COMPRESS_DEBUG_SPEC \
690 " %{gz|gz=zlib:" AS_COMPRESS_DEBUG_OPTION "=zlib}" \
691 " %{gz=none:" AS_COMPRESS_DEBUG_OPTION "=none}" \
692 " %{gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
694 #error Unknown value for HAVE_AS_COMPRESS_DEBUG.
696 #endif /* HAVE_LD_COMPRESS_DEBUG >= 2 */
698 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
700 #ifndef ASM_DEBUG_SPEC
701 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
702 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
703 # define ASM_DEBUG_SPEC \
704 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
705 ? "%{!g0:%{gdwarf*:--gdwarf2}%{!gdwarf*:%{g*:--gstabs}}}" ASM_MAP \
706 : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
708 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
709 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP
711 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
712 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP
716 #ifndef ASM_DEBUG_SPEC
717 # define ASM_DEBUG_SPEC ""
720 /* Here is the spec for running the linker, after compiling all files. */
722 /* This is overridable by the target in case they need to specify the
723 -lgcc and -lc order specially, yet not require them to override all
724 of LINK_COMMAND_SPEC. */
725 #ifndef LINK_GCC_C_SEQUENCE_SPEC
726 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
729 #ifndef LINK_SSP_SPEC
730 #ifdef TARGET_LIBC_PROVIDES_SSP
731 #define LINK_SSP_SPEC "%{fstack-protector:}"
733 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-strong|fstack-protector-all:-lssp_nonshared -lssp}"
737 #ifndef LINK_PIE_SPEC
739 #define LINK_PIE_SPEC "%{pie:-pie} "
741 #define LINK_PIE_SPEC "%{pie:} "
745 #ifndef LINK_BUILDID_SPEC
746 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
747 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
751 /* Conditional to test whether the LTO plugin is used or not.
752 FIXME: For slim LTO we will need to enable plugin unconditionally. This
753 still cause problems with PLUGIN_LD != LD and when plugin is built but
754 not useable. For GCC 4.6 we don't support slim LTO and thus we can enable
755 plugin only when LTO is enabled. We still honor explicit
756 -fuse-linker-plugin if the linker used understands -plugin. */
758 /* The linker has some plugin support. */
759 #if HAVE_LTO_PLUGIN > 0
760 /* The linker used has full plugin support, use LTO plugin by default. */
761 #if HAVE_LTO_PLUGIN == 2
762 #define PLUGIN_COND "!fno-use-linker-plugin:%{!fno-lto"
763 #define PLUGIN_COND_CLOSE "}"
765 /* The linker used has limited plugin support, use LTO plugin with explicit
766 -fuse-linker-plugin. */
767 #define PLUGIN_COND "fuse-linker-plugin"
768 #define PLUGIN_COND_CLOSE ""
770 #define LINK_PLUGIN_SPEC \
772 -plugin %(linker_plugin_file) \
773 -plugin-opt=%(lto_wrapper) \
774 -plugin-opt=-fresolution=%u.res \
775 %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \
778 /* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */
779 #define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\
780 %e-fuse-linker-plugin is not supported in this configuration}"
783 /* Linker command line options for -fsanitize= early on the command line. */
784 #ifndef SANITIZER_EARLY_SPEC
785 #define SANITIZER_EARLY_SPEC "\
786 %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_EARLY_SPEC "} \
787 %{%:sanitize(thread):" LIBTSAN_EARLY_SPEC "} \
788 %{%:sanitize(leak):" LIBLSAN_EARLY_SPEC "}}}"
791 /* Linker command line options for -fsanitize= late on the command line. */
792 #ifndef SANITIZER_SPEC
793 #define SANITIZER_SPEC "\
794 %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_SPEC "\
795 %{static:%ecannot specify -static with -fsanitize=address}}\
796 %{%:sanitize(thread):" LIBTSAN_SPEC "\
797 %{!pie:%{!shared:%e-fsanitize=thread linking must be done with -pie or -shared}}}\
798 %{%:sanitize(undefined):" LIBUBSAN_SPEC "}\
799 %{%:sanitize(leak):" LIBLSAN_SPEC "}}}"
802 /* This is the spec to use, once the code for creating the vtable
803 verification runtime library, libvtv.so, has been created. Currently
804 the vtable verification runtime functions are in libstdc++, so we use
805 the spec just below this one. */
806 #ifndef VTABLE_VERIFICATION_SPEC
807 #define VTABLE_VERIFICATION_SPEC "\
808 %{!nostdlib:%{fvtable-verify=std: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}\
809 %{fvtable-verify=preinit: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}}"
812 /* -u* was put back because both BSD and SysV seem to support it. */
813 /* %{static:} simply prevents an error message if the target machine
814 doesn't handle -static. */
815 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
816 scripts which exist in user specified directories, or in standard
818 /* We pass any -flto flags on to the linker, which is expected
819 to understand them. In practice, this means it had better be collect2. */
820 /* %{e*} includes -export-dynamic; see comment in common.opt. */
821 #ifndef LINK_COMMAND_SPEC
822 #define LINK_COMMAND_SPEC "\
823 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
826 "%{flto|flto=*:%<fcompare-debug*} \
827 %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \
828 "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
829 "%X %{o*} %{e*} %{N} %{n} %{r}\
830 %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}} " VTABLE_VERIFICATION_SPEC " \
831 %{static:} %{L*} %(mfwrap) %(link_libgcc) " SANITIZER_EARLY_SPEC " %o\
832 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}\
833 %{fcilkplus:%:include(libcilkrts.spec)%(link_cilkrts)}\
834 %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
835 %(mflib) " STACK_SPLIT_SPEC "\
836 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \
837 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
838 %{!nostdlib:%{!nostartfiles:%E}} %{T*} }}}}}}"
841 #ifndef LINK_LIBGCC_SPEC
842 /* Generate -L options for startfile prefix list. */
843 # define LINK_LIBGCC_SPEC "%D"
846 #ifndef STARTFILE_PREFIX_SPEC
847 # define STARTFILE_PREFIX_SPEC ""
851 # define SYSROOT_SPEC "--sysroot=%R"
854 #ifndef SYSROOT_SUFFIX_SPEC
855 # define SYSROOT_SUFFIX_SPEC ""
858 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
859 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
862 static const char *asm_debug
= ASM_DEBUG_SPEC
;
863 static const char *cpp_spec
= CPP_SPEC
;
864 static const char *cc1_spec
= CC1_SPEC
;
865 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
866 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
867 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
868 static const char *asm_spec
= ASM_SPEC
;
869 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
870 static const char *link_spec
= LINK_SPEC
;
871 static const char *lib_spec
= LIB_SPEC
;
872 static const char *link_gomp_spec
= "";
873 static const char *libgcc_spec
= LIBGCC_SPEC
;
874 static const char *endfile_spec
= ENDFILE_SPEC
;
875 static const char *startfile_spec
= STARTFILE_SPEC
;
876 static const char *linker_name_spec
= LINKER_NAME
;
877 static const char *linker_plugin_file_spec
= "";
878 static const char *lto_wrapper_spec
= "";
879 static const char *lto_gcc_spec
= "";
880 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
881 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
882 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
883 static const char *sysroot_spec
= SYSROOT_SPEC
;
884 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
885 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
886 static const char *self_spec
= "";
888 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
889 There should be no need to override these in target dependent files,
890 but we need to copy them to the specs file so that newer versions
891 of the GCC driver can correctly drive older tool chains with the
892 appropriate -B options. */
894 /* When cpplib handles traditional preprocessing, get rid of this, and
895 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
896 that we default the front end language better. */
897 static const char *trad_capable_cpp
=
898 "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}";
900 /* We don't wrap .d files in %W{} since a missing .d file, and
901 therefore no dependency entry, confuses make into thinking a .o
902 file that happens to exist is up-to-date. */
903 static const char *cpp_unique_options
=
904 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
905 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
906 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
907 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
908 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
909 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
910 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
911 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
914 /* This contains cpp options which are common with cc1_options and are passed
915 only when preprocessing only to avoid duplication. We pass the cc1 spec
916 options to the preprocessor so that it the cc1 spec may manipulate
917 options used to set target flags. Those special target flags settings may
918 in turn cause preprocessor symbols to be defined specially. */
919 static const char *cpp_options
=
920 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
921 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
922 %{undef} %{save-temps*:-fpch-preprocess}";
924 /* This contains cpp options which are not passed when the preprocessor
925 output will be used by another program. */
926 static const char *cpp_debug_options
= "%{d*}";
928 /* NB: This is shared amongst all front-ends, except for Ada. */
929 static const char *cc1_options
=
930 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
931 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
932 %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\
933 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
934 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
935 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
936 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
937 %{Qn:-fno-ident} %{Qy:} %{-help:--help}\
938 %{-target-help:--target-help}\
939 %{-version:--version}\
940 %{-help=*:--help=%*}\
941 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
942 %{fsyntax-only:-o %j} %{-param*}\
943 %{coverage:-fprofile-arcs -ftest-coverage}";
945 static const char *asm_options
=
946 "%{-target-help:%:print-asm-header()} "
948 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
949 to the assembler equivalents. */
950 "%{v} %{w:-W} %{I*} "
952 ASM_COMPRESS_DEBUG_SPEC
953 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
955 static const char *invoke_as
=
956 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
958 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
959 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
963 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
964 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
968 /* Some compilers have limits on line lengths, and the multilib_select
969 and/or multilib_matches strings can be very long, so we build them at
971 static struct obstack multilib_obstack
;
972 static const char *multilib_select
;
973 static const char *multilib_matches
;
974 static const char *multilib_defaults
;
975 static const char *multilib_exclusions
;
976 static const char *multilib_reuse
;
978 /* Check whether a particular argument is a default argument. */
980 #ifndef MULTILIB_DEFAULTS
981 #define MULTILIB_DEFAULTS { "" }
984 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
986 #ifndef DRIVER_SELF_SPECS
987 #define DRIVER_SELF_SPECS ""
990 /* Linking to libgomp implies pthreads. This is particularly important
991 for targets that use different start files and suchlike. */
992 #ifndef GOMP_SELF_SPECS
993 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
996 /* Likewise for -fgnu-tm. */
997 #ifndef GTM_SELF_SPECS
998 #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}"
1001 /* Likewise for -fcilkplus. */
1002 #ifndef CILK_SELF_SPECS
1003 #define CILK_SELF_SPECS "%{fcilkplus: -pthread}"
1006 static const char *const driver_self_specs
[] = {
1007 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
1008 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
, GTM_SELF_SPECS
,
1012 #ifndef OPTION_DEFAULT_SPECS
1013 #define OPTION_DEFAULT_SPECS { "", "" }
1022 static const struct default_spec
1023 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
1027 struct user_specs
*next
;
1028 const char *filename
;
1031 static struct user_specs
*user_specs_head
, *user_specs_tail
;
1034 /* Record the mapping from file suffixes for compilation specs. */
1038 const char *suffix
; /* Use this compiler for input files
1039 whose names end in this suffix. */
1041 const char *spec
; /* To use this compiler, run this spec. */
1043 const char *cpp_spec
; /* If non-NULL, substitute this spec
1044 for `%C', rather than the usual
1046 const int combinable
; /* If nonzero, compiler can deal with
1047 multiple source files at once (IMA). */
1048 const int needs_preprocessing
; /* If nonzero, source files need to
1049 be run through a preprocessor. */
1052 /* Pointer to a vector of `struct compiler' that gives the spec for
1053 compiling a file, based on its suffix.
1054 A file that does not end in any of these suffixes will be passed
1055 unchanged to the loader and nothing else will be done to it.
1057 An entry containing two 0s is used to terminate the vector.
1059 If multiple entries match a file, the last matching one is used. */
1061 static struct compiler
*compilers
;
1063 /* Number of entries in `compilers', not counting the null terminator. */
1065 static int n_compilers
;
1067 /* The default list of file name suffixes and their compilation specs. */
1069 static const struct compiler default_compilers
[] =
1071 /* Add lists of suffixes of known languages here. If those languages
1072 were not present when we built the driver, we will hit these copies
1073 and be given a more meaningful error than "file not used since
1074 linking is not done". */
1075 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1076 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1077 {".mii", "#Objective-C++", 0, 0, 0},
1078 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1079 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1080 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1081 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1082 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1083 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1084 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1085 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1086 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1087 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1088 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1089 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1090 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1091 {".r", "#Ratfor", 0, 0, 0},
1092 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
1093 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
1094 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
1095 {".go", "#Go", 0, 1, 0},
1096 /* Next come the entries for C. */
1097 {".c", "@c", 0, 0, 1},
1099 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1100 external preprocessor if -save-temps is given. */
1101 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1104 %eGNU C no longer supports -traditional without -E}\
1105 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1106 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1107 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1109 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1110 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1111 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
1113 "%{!E:%e-E or -x required when input is from standard input}\
1114 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1115 {".h", "@c-header", 0, 0, 0},
1117 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1118 external preprocessor if -save-temps is given. */
1119 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1121 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1122 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1123 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1125 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
1126 %W{o*:--output-pch=%*}}%V}\
1127 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1128 cc1 %(cpp_unique_options) %(cc1_options)\
1129 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
1130 %W{o*:--output-pch=%*}}%V}}}}}}", 0, 0, 0},
1131 {".i", "@cpp-output", 0, 0, 0},
1133 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
1134 {".s", "@assembler", 0, 0, 0},
1136 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
1137 {".sx", "@assembler-with-cpp", 0, 0, 0},
1138 {".S", "@assembler-with-cpp", 0, 0, 0},
1139 {"@assembler-with-cpp",
1140 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1141 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1142 %{E|M|MM:%(cpp_debug_options)}\
1143 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1144 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1146 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1147 %{E|M|MM:%(cpp_debug_options)}\
1148 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1149 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1154 /* Mark end of table. */
1158 /* Number of elements in default_compilers, not counting the terminator. */
1160 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1162 typedef char *char_p
; /* For DEF_VEC_P. */
1164 /* A vector of options to give to the linker.
1165 These options are accumulated by %x,
1166 and substituted into the linker command with %X. */
1167 static vec
<char_p
> linker_options
;
1169 /* A vector of options to give to the assembler.
1170 These options are accumulated by -Wa,
1171 and substituted into the assembler command with %Y. */
1172 static vec
<char_p
> assembler_options
;
1174 /* A vector of options to give to the preprocessor.
1175 These options are accumulated by -Wp,
1176 and substituted into the preprocessor command with %Z. */
1177 static vec
<char_p
> preprocessor_options
;
1180 skip_whitespace (char *p
)
1184 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1185 be considered whitespace. */
1186 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1188 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1202 /* Structures to keep track of prefixes to try when looking for files. */
1206 const char *prefix
; /* String to prepend to the path. */
1207 struct prefix_list
*next
; /* Next in linked list. */
1208 int require_machine_suffix
; /* Don't use without machine_suffix. */
1209 /* 2 means try both machine_suffix and just_machine_suffix. */
1210 int priority
; /* Sort key - priority within list. */
1211 int os_multilib
; /* 1 if OS multilib scheme should be used,
1212 0 for GCC multilib scheme. */
1217 struct prefix_list
*plist
; /* List of prefixes to try */
1218 int max_len
; /* Max length of a prefix in PLIST */
1219 const char *name
; /* Name of this list (used in config stuff) */
1222 /* List of prefixes to try when looking for executables. */
1224 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1226 /* List of prefixes to try when looking for startup (crt0) files. */
1228 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1230 /* List of prefixes to try when looking for include files. */
1232 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1234 /* Suffix to attach to directories searched for commands.
1235 This looks like `MACHINE/VERSION/'. */
1237 static const char *machine_suffix
= 0;
1239 /* Suffix to attach to directories searched for commands.
1240 This is just `MACHINE/'. */
1242 static const char *just_machine_suffix
= 0;
1244 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1246 static const char *gcc_exec_prefix
;
1248 /* Adjusted value of standard_libexec_prefix. */
1250 static const char *gcc_libexec_prefix
;
1252 /* Default prefixes to attach to command names. */
1254 #ifndef STANDARD_STARTFILE_PREFIX_1
1255 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1257 #ifndef STANDARD_STARTFILE_PREFIX_2
1258 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1261 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1262 #undef MD_EXEC_PREFIX
1263 #undef MD_STARTFILE_PREFIX
1264 #undef MD_STARTFILE_PREFIX_1
1267 /* If no prefixes defined, use the null string, which will disable them. */
1268 #ifndef MD_EXEC_PREFIX
1269 #define MD_EXEC_PREFIX ""
1271 #ifndef MD_STARTFILE_PREFIX
1272 #define MD_STARTFILE_PREFIX ""
1274 #ifndef MD_STARTFILE_PREFIX_1
1275 #define MD_STARTFILE_PREFIX_1 ""
1278 /* These directories are locations set at configure-time based on the
1279 --prefix option provided to configure. Their initializers are
1280 defined in Makefile.in. These paths are not *directly* used when
1281 gcc_exec_prefix is set because, in that case, we know where the
1282 compiler has been installed, and use paths relative to that
1283 location instead. */
1284 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1285 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1286 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1287 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1289 /* For native compilers, these are well-known paths containing
1290 components that may be provided by the system. For cross
1291 compilers, these paths are not used. */
1292 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1293 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1294 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1295 static const char *const standard_startfile_prefix_1
1296 = STANDARD_STARTFILE_PREFIX_1
;
1297 static const char *const standard_startfile_prefix_2
1298 = STANDARD_STARTFILE_PREFIX_2
;
1300 /* A relative path to be used in finding the location of tools
1301 relative to the driver. */
1302 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1304 /* A prefix to be used when this is an accelerator compiler. */
1305 static const char *const accel_dir_suffix
= ACCEL_DIR_SUFFIX
;
1307 /* Subdirectory to use for locating libraries. Set by
1308 set_multilib_dir based on the compilation options. */
1310 static const char *multilib_dir
;
1312 /* Subdirectory to use for locating libraries in OS conventions. Set by
1313 set_multilib_dir based on the compilation options. */
1315 static const char *multilib_os_dir
;
1317 /* Subdirectory to use for locating libraries in multiarch conventions. Set by
1318 set_multilib_dir based on the compilation options. */
1320 static const char *multiarch_dir
;
1322 /* Structure to keep track of the specs that have been defined so far.
1323 These are accessed using %(specname) in a compiler or link
1328 /* The following 2 fields must be first */
1329 /* to allow EXTRA_SPECS to be initialized */
1330 const char *name
; /* name of the spec. */
1331 const char *ptr
; /* available ptr if no static pointer */
1333 /* The following fields are not initialized */
1334 /* by EXTRA_SPECS */
1335 const char **ptr_spec
; /* pointer to the spec itself. */
1336 struct spec_list
*next
; /* Next spec in linked list. */
1337 int name_len
; /* length of the name */
1338 bool user_p
; /* whether string come from file spec. */
1339 bool alloc_p
; /* whether string was allocated */
1342 #define INIT_STATIC_SPEC(NAME,PTR) \
1343 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, false, false }
1345 /* List of statically defined specs. */
1346 static struct spec_list static_specs
[] =
1348 INIT_STATIC_SPEC ("asm", &asm_spec
),
1349 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1350 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1351 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1352 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1353 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1354 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1355 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1356 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1357 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1358 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1359 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1360 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1361 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1362 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1363 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1364 INIT_STATIC_SPEC ("link", &link_spec
),
1365 INIT_STATIC_SPEC ("lib", &lib_spec
),
1366 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1367 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1368 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1369 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1370 INIT_STATIC_SPEC ("version", &compiler_version
),
1371 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1372 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1373 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1374 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1375 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1376 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1377 INIT_STATIC_SPEC ("multilib_reuse", &multilib_reuse
),
1378 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1379 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1380 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1381 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1382 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1383 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1384 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1385 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1386 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1387 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1388 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1389 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1390 INIT_STATIC_SPEC ("self_spec", &self_spec
),
1393 #ifdef EXTRA_SPECS /* additional specs needed */
1394 /* Structure to keep track of just the first two args of a spec_list.
1395 That is all that the EXTRA_SPECS macro gives us. */
1398 const char *const name
;
1399 const char *const ptr
;
1402 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1403 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1406 /* List of dynamically allocates specs that have been defined so far. */
1408 static struct spec_list
*specs
= (struct spec_list
*) 0;
1410 /* List of static spec functions. */
1412 static const struct spec_function static_spec_functions
[] =
1414 { "getenv", getenv_spec_function
},
1415 { "if-exists", if_exists_spec_function
},
1416 { "if-exists-else", if_exists_else_spec_function
},
1417 { "sanitize", sanitize_spec_function
},
1418 { "replace-outfile", replace_outfile_spec_function
},
1419 { "remove-outfile", remove_outfile_spec_function
},
1420 { "version-compare", version_compare_spec_function
},
1421 { "include", include_spec_function
},
1422 { "find-file", find_file_spec_function
},
1423 { "find-plugindir", find_plugindir_spec_function
},
1424 { "print-asm-header", print_asm_header_spec_function
},
1425 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1426 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1427 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1428 { "pass-through-libs", pass_through_libs_spec_func
},
1429 { "replace-extension", replace_extension_spec_func
},
1430 #ifdef EXTRA_SPEC_FUNCTIONS
1431 EXTRA_SPEC_FUNCTIONS
1436 static int processing_spec_function
;
1438 /* Add appropriate libgcc specs to OBSTACK, taking into account
1439 various permutations of -shared-libgcc, -shared, and such. */
1441 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1443 #ifndef USE_LD_AS_NEEDED
1444 #define USE_LD_AS_NEEDED 0
1448 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1449 const char *static_name
, const char *eh_name
)
1453 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1454 "%{!static:%{!static-libgcc:"
1455 #if USE_LD_AS_NEEDED
1456 "%{!shared-libgcc:",
1457 static_name
, " " LD_AS_NEEDED_OPTION
" ",
1458 shared_name
, " " LD_NO_AS_NEEDED_OPTION
1461 shared_name
, "%{!shared: ", static_name
, "}"
1465 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1466 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1470 "%{shared-libgcc:", shared_name
, "}"
1471 "%{!shared-libgcc:", static_name
, "}"
1474 "%{shared:", shared_name
, "}"
1479 obstack_grow (obstack
, buf
, strlen (buf
));
1482 #endif /* ENABLE_SHARED_LIBGCC */
1484 /* Initialize the specs lookup routines. */
1489 struct spec_list
*next
= (struct spec_list
*) 0;
1490 struct spec_list
*sl
= (struct spec_list
*) 0;
1494 return; /* Already initialized. */
1497 fnotice (stderr
, "Using built-in specs.\n");
1500 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1502 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1504 sl
= &extra_specs
[i
];
1505 sl
->name
= extra_specs_1
[i
].name
;
1506 sl
->ptr
= extra_specs_1
[i
].ptr
;
1508 sl
->name_len
= strlen (sl
->name
);
1509 sl
->ptr_spec
= &sl
->ptr
;
1514 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1516 sl
= &static_specs
[i
];
1521 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1522 /* ??? If neither -shared-libgcc nor --static-libgcc was
1523 seen, then we should be making an educated guess. Some proposed
1524 heuristics for ELF include:
1526 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1527 program will be doing dynamic loading, which will likely
1528 need the shared libgcc.
1530 (2) If "-ldl", then it's also a fair bet that we're doing
1533 (3) For each ET_DYN we're linking against (either through -lfoo
1534 or /some/path/foo.so), check to see whether it or one of
1535 its dependencies depends on a shared libgcc.
1539 If the runtime is fixed to look for program headers instead
1540 of calling __register_frame_info at all, for each object,
1541 use the shared libgcc if any EH symbol referenced.
1543 If crtstuff is fixed to not invoke __register_frame_info
1544 automatically, for each object, use the shared libgcc if
1545 any non-empty unwind section found.
1547 Doing any of this probably requires invoking an external program to
1548 do the actual object file scanning. */
1550 const char *p
= libgcc_spec
;
1553 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1554 when given the proper command line arguments. */
1557 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1559 init_gcc_specs (&obstack
,
1561 #ifdef USE_LIBUNWIND_EXCEPTIONS
1567 #ifdef USE_LIBUNWIND_EXCEPTIONS
1568 # ifdef HAVE_LD_STATIC_DYNAMIC
1569 " %{!static:" LD_STATIC_OPTION
"} -lunwind"
1570 " %{!static:" LD_DYNAMIC_OPTION
"}"
1580 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1582 /* Ug. We don't know shared library extensions. Hope that
1583 systems that use this form don't do shared libraries. */
1584 init_gcc_specs (&obstack
,
1588 #ifdef USE_LIBUNWIND_EXCEPTIONS
1597 obstack_1grow (&obstack
, *p
);
1598 in_sep
= (*p
== ' ');
1603 obstack_1grow (&obstack
, '\0');
1604 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1607 #ifdef USE_AS_TRADITIONAL_FORMAT
1608 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1610 static const char tf
[] = "--traditional-format ";
1611 obstack_grow (&obstack
, tf
, sizeof (tf
) - 1);
1612 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1613 asm_spec
= XOBFINISH (&obstack
, const char *);
1617 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \
1618 defined LINKER_HASH_STYLE
1619 # ifdef LINK_BUILDID_SPEC
1620 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1621 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof (LINK_BUILDID_SPEC
) - 1);
1623 # ifdef LINK_EH_SPEC
1624 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1625 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof (LINK_EH_SPEC
) - 1);
1627 # ifdef LINKER_HASH_STYLE
1628 /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had
1631 static const char hash_style
[] = "--hash-style=";
1632 obstack_grow (&obstack
, hash_style
, sizeof (hash_style
) - 1);
1633 obstack_grow (&obstack
, LINKER_HASH_STYLE
, sizeof (LINKER_HASH_STYLE
) - 1);
1634 obstack_1grow (&obstack
, ' ');
1637 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1638 link_spec
= XOBFINISH (&obstack
, const char *);
1644 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1645 removed; If the spec starts with a + then SPEC is added to the end of the
1649 set_spec (const char *name
, const char *spec
, bool user_p
)
1651 struct spec_list
*sl
;
1652 const char *old_spec
;
1653 int name_len
= strlen (name
);
1656 /* If this is the first call, initialize the statically allocated specs. */
1659 struct spec_list
*next
= (struct spec_list
*) 0;
1660 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1662 sl
= &static_specs
[i
];
1669 /* See if the spec already exists. */
1670 for (sl
= specs
; sl
; sl
= sl
->next
)
1671 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1676 /* Not found - make it. */
1677 sl
= XNEW (struct spec_list
);
1678 sl
->name
= xstrdup (name
);
1679 sl
->name_len
= name_len
;
1680 sl
->ptr_spec
= &sl
->ptr
;
1682 *(sl
->ptr_spec
) = "";
1687 old_spec
= *(sl
->ptr_spec
);
1688 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1689 ? concat (old_spec
, spec
+ 1, NULL
)
1694 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1697 /* Free the old spec. */
1698 if (old_spec
&& sl
->alloc_p
)
1699 free (CONST_CAST (char *, old_spec
));
1701 sl
->user_p
= user_p
;
1705 /* Accumulate a command (program name and args), and run it. */
1707 typedef const char *const_char_p
; /* For DEF_VEC_P. */
1709 /* Vector of pointers to arguments in the current line of specifications. */
1711 static vec
<const_char_p
> argbuf
;
1713 /* Were the options -c, -S or -E passed. */
1714 static int have_c
= 0;
1716 /* Was the option -o passed. */
1717 static int have_o
= 0;
1719 /* Pointer to output file name passed in with -o. */
1720 static const char *output_file
= 0;
1722 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1723 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1726 static struct temp_name
{
1727 const char *suffix
; /* suffix associated with the code. */
1728 int length
; /* strlen (suffix). */
1729 int unique
; /* Indicates whether %g or %u/%U was used. */
1730 const char *filename
; /* associated filename. */
1731 int filename_length
; /* strlen (filename). */
1732 struct temp_name
*next
;
1735 /* Number of commands executed so far. */
1737 static int execution_count
;
1739 /* Number of commands that exited with a signal. */
1741 static int signal_count
;
1743 /* Allocate the argument vector. */
1751 /* Clear out the vector of arguments (after a command is executed). */
1756 argbuf
.truncate (0);
1759 /* Add one argument to the vector at the end.
1760 This is done when a space is seen or at the end of the line.
1761 If DELETE_ALWAYS is nonzero, the arg is a filename
1762 and the file should be deleted eventually.
1763 If DELETE_FAILURE is nonzero, the arg is a filename
1764 and the file should be deleted if this compilation fails. */
1767 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1769 argbuf
.safe_push (arg
);
1771 if (delete_always
|| delete_failure
)
1774 /* If the temporary file we should delete is specified as
1775 part of a joined argument extract the filename. */
1777 && (p
= strrchr (arg
, '=')))
1779 record_temp_file (arg
, delete_always
, delete_failure
);
1783 /* Load specs from a file name named FILENAME, replacing occurrences of
1784 various different types of line-endings, \r\n, \n\r and just \r, with
1788 load_specs (const char *filename
)
1792 struct stat statbuf
;
1799 fnotice (stderr
, "Reading specs from %s\n", filename
);
1801 /* Open and stat the file. */
1802 desc
= open (filename
, O_RDONLY
, 0);
1804 pfatal_with_name (filename
);
1805 if (stat (filename
, &statbuf
) < 0)
1806 pfatal_with_name (filename
);
1808 /* Read contents of file into BUFFER. */
1809 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
1810 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1812 pfatal_with_name (filename
);
1813 buffer
[readlen
] = 0;
1816 specs
= XNEWVEC (char, readlen
+ 1);
1818 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1824 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1826 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1840 /* Read compilation specs from a file named FILENAME,
1841 replacing the default ones.
1843 A suffix which starts with `*' is a definition for
1844 one of the machine-specific sub-specs. The "suffix" should be
1845 *asm, *cc1, *cpp, *link, *startfile, etc.
1846 The corresponding spec is stored in asm_spec, etc.,
1847 rather than in the `compilers' vector.
1849 Anything invalid in the file is a fatal error. */
1852 read_specs (const char *filename
, bool main_p
, bool user_p
)
1857 buffer
= load_specs (filename
);
1859 /* Scan BUFFER for specs, putting them in the vector. */
1865 char *in
, *out
, *p1
, *p2
, *p3
;
1867 /* Advance P in BUFFER to the next nonblank nocomment line. */
1868 p
= skip_whitespace (p
);
1872 /* Is this a special command that starts with '%'? */
1873 /* Don't allow this for the main specs file, since it would
1874 encourage people to overwrite it. */
1875 if (*p
== '%' && !main_p
)
1878 while (*p
&& *p
!= '\n')
1884 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1885 && (p1
[sizeof "%include" - 1] == ' '
1886 || p1
[sizeof "%include" - 1] == '\t'))
1890 p1
+= sizeof ("%include");
1891 while (*p1
== ' ' || *p1
== '\t')
1894 if (*p1
++ != '<' || p
[-2] != '>')
1895 fatal_error ("specs %%include syntax malformed after "
1897 (long) (p1
- buffer
+ 1));
1900 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1901 read_specs (new_filename
? new_filename
: p1
, false, user_p
);
1904 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1905 && (p1
[sizeof "%include_noerr" - 1] == ' '
1906 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1910 p1
+= sizeof "%include_noerr";
1911 while (*p1
== ' ' || *p1
== '\t')
1914 if (*p1
++ != '<' || p
[-2] != '>')
1915 fatal_error ("specs %%include syntax malformed after "
1917 (long) (p1
- buffer
+ 1));
1920 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1922 read_specs (new_filename
, false, user_p
);
1923 else if (verbose_flag
)
1924 fnotice (stderr
, "could not find specs file %s\n", p1
);
1927 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1928 && (p1
[sizeof "%rename" - 1] == ' '
1929 || p1
[sizeof "%rename" - 1] == '\t'))
1932 struct spec_list
*sl
;
1933 struct spec_list
*newsl
;
1935 /* Get original name. */
1936 p1
+= sizeof "%rename";
1937 while (*p1
== ' ' || *p1
== '\t')
1940 if (! ISALPHA ((unsigned char) *p1
))
1941 fatal_error ("specs %%rename syntax malformed after "
1943 (long) (p1
- buffer
));
1946 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1949 if (*p2
!= ' ' && *p2
!= '\t')
1950 fatal_error ("specs %%rename syntax malformed after "
1952 (long) (p2
- buffer
));
1956 while (*p2
== ' ' || *p2
== '\t')
1959 if (! ISALPHA ((unsigned char) *p2
))
1960 fatal_error ("specs %%rename syntax malformed after "
1962 (long) (p2
- buffer
));
1964 /* Get new spec name. */
1966 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
1970 fatal_error ("specs %%rename syntax malformed after "
1972 (long) (p3
- buffer
));
1975 for (sl
= specs
; sl
; sl
= sl
->next
)
1976 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1980 fatal_error ("specs %s spec was not found to be renamed", p1
);
1982 if (strcmp (p1
, p2
) == 0)
1985 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
1986 if (strcmp (newsl
->name
, p2
) == 0)
1987 fatal_error ("%s: attempt to rename spec %qs to "
1988 "already defined spec %qs",
1993 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
1995 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
1999 set_spec (p2
, *(sl
->ptr_spec
), user_p
);
2001 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2003 *(sl
->ptr_spec
) = "";
2008 fatal_error ("specs unknown %% command after %ld characters",
2009 (long) (p1
- buffer
));
2012 /* Find the colon that should end the suffix. */
2014 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2017 /* The colon shouldn't be missing. */
2019 fatal_error ("specs file malformed after %ld characters",
2020 (long) (p1
- buffer
));
2022 /* Skip back over trailing whitespace. */
2024 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2027 /* Copy the suffix to a string. */
2028 suffix
= save_string (p
, p2
- p
);
2029 /* Find the next line. */
2030 p
= skip_whitespace (p1
+ 1);
2032 fatal_error ("specs file malformed after %ld characters",
2033 (long) (p
- buffer
));
2036 /* Find next blank line or end of string. */
2037 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2040 /* Specs end at the blank line and do not include the newline. */
2041 spec
= save_string (p
, p1
- p
);
2044 /* Delete backslash-newline sequences from the spec. */
2049 if (in
[0] == '\\' && in
[1] == '\n')
2051 else if (in
[0] == '#')
2052 while (*in
&& *in
!= '\n')
2060 if (suffix
[0] == '*')
2062 if (! strcmp (suffix
, "*link_command"))
2063 link_command_spec
= spec
;
2065 set_spec (suffix
+ 1, spec
, user_p
);
2069 /* Add this pair to the vector. */
2071 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2073 compilers
[n_compilers
].suffix
= suffix
;
2074 compilers
[n_compilers
].spec
= spec
;
2076 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2080 link_command_spec
= spec
;
2083 if (link_command_spec
== 0)
2084 fatal_error ("spec file has no spec for linking");
2087 /* Record the names of temporary files we tell compilers to write,
2088 and delete them at the end of the run. */
2090 /* This is the common prefix we use to make temp file names.
2091 It is chosen once for each run of this program.
2092 It is substituted into a spec by %g or %j.
2093 Thus, all temp file names contain this prefix.
2094 In practice, all temp file names start with this prefix.
2096 This prefix comes from the envvar TMPDIR if it is defined;
2097 otherwise, from the P_tmpdir macro if that is defined;
2098 otherwise, in /usr/tmp or /tmp;
2099 or finally the current directory if all else fails. */
2101 static const char *temp_filename
;
2103 /* Length of the prefix. */
2105 static int temp_filename_length
;
2107 /* Define the list of temporary files to delete. */
2112 struct temp_file
*next
;
2115 /* Queue of files to delete on success or failure of compilation. */
2116 static struct temp_file
*always_delete_queue
;
2117 /* Queue of files to delete on failure of compilation. */
2118 static struct temp_file
*failure_delete_queue
;
2120 /* Record FILENAME as a file to be deleted automatically.
2121 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2122 otherwise delete it in any case.
2123 FAIL_DELETE nonzero means delete it if a compilation step fails;
2124 otherwise delete it in any case. */
2127 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2129 char *const name
= xstrdup (filename
);
2133 struct temp_file
*temp
;
2134 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2135 if (! filename_cmp (name
, temp
->name
))
2138 temp
= XNEW (struct temp_file
);
2139 temp
->next
= always_delete_queue
;
2141 always_delete_queue
= temp
;
2148 struct temp_file
*temp
;
2149 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2150 if (! filename_cmp (name
, temp
->name
))
2156 temp
= XNEW (struct temp_file
);
2157 temp
->next
= failure_delete_queue
;
2159 failure_delete_queue
= temp
;
2165 /* Delete all the temporary files whose names we previously recorded. */
2167 #ifndef DELETE_IF_ORDINARY
2168 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2171 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2172 if (unlink (NAME) < 0) \
2174 perror_with_name (NAME); \
2179 delete_if_ordinary (const char *name
)
2185 printf ("Delete %s? (y or n) ", name
);
2189 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2192 if (i
== 'y' || i
== 'Y')
2194 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2198 delete_temp_files (void)
2200 struct temp_file
*temp
;
2202 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2203 delete_if_ordinary (temp
->name
);
2204 always_delete_queue
= 0;
2207 /* Delete all the files to be deleted on error. */
2210 delete_failure_queue (void)
2212 struct temp_file
*temp
;
2214 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2215 delete_if_ordinary (temp
->name
);
2219 clear_failure_queue (void)
2221 failure_delete_queue
= 0;
2224 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2226 If DO_MULTI is true iterate over the paths twice, first with multilib
2227 suffix then without, otherwise iterate over the paths once without
2228 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2229 to avoid visiting the same path twice, but we could do better. For
2230 instance, /usr/lib/../lib is considered different from /usr/lib.
2231 At least EXTRA_SPACE chars past the end of the path passed to
2232 CALLBACK are available for use by the callback.
2233 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2235 Returns the value returned by CALLBACK. */
2238 for_each_path (const struct path_prefix
*paths
,
2241 void *(*callback
) (char *, void *),
2242 void *callback_info
)
2244 struct prefix_list
*pl
;
2245 const char *multi_dir
= NULL
;
2246 const char *multi_os_dir
= NULL
;
2247 const char *multiarch_suffix
= NULL
;
2248 const char *multi_suffix
;
2249 const char *just_multi_suffix
;
2252 bool skip_multi_dir
= false;
2253 bool skip_multi_os_dir
= false;
2255 multi_suffix
= machine_suffix
;
2256 just_multi_suffix
= just_machine_suffix
;
2257 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2259 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2260 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2261 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2263 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2264 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2266 multiarch_suffix
= concat (multiarch_dir
, dir_separator_str
, NULL
);
2270 size_t multi_dir_len
= 0;
2271 size_t multi_os_dir_len
= 0;
2272 size_t multiarch_len
= 0;
2274 size_t just_suffix_len
;
2278 multi_dir_len
= strlen (multi_dir
);
2280 multi_os_dir_len
= strlen (multi_os_dir
);
2281 if (multiarch_suffix
)
2282 multiarch_len
= strlen (multiarch_suffix
);
2283 suffix_len
= strlen (multi_suffix
);
2284 just_suffix_len
= strlen (just_multi_suffix
);
2288 len
= paths
->max_len
+ extra_space
+ 1;
2289 len
+= MAX (MAX (suffix_len
, multi_os_dir_len
), multiarch_len
);
2290 path
= XNEWVEC (char, len
);
2293 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2295 len
= strlen (pl
->prefix
);
2296 memcpy (path
, pl
->prefix
, len
);
2298 /* Look first in MACHINE/VERSION subdirectory. */
2299 if (!skip_multi_dir
)
2301 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2302 ret
= callback (path
, callback_info
);
2307 /* Some paths are tried with just the machine (ie. target)
2308 subdir. This is used for finding as, ld, etc. */
2310 && pl
->require_machine_suffix
== 2)
2312 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2313 ret
= callback (path
, callback_info
);
2318 /* Now try the multiarch path. */
2320 && !pl
->require_machine_suffix
&& multiarch_dir
)
2322 memcpy (path
+ len
, multiarch_suffix
, multiarch_len
+ 1);
2323 ret
= callback (path
, callback_info
);
2328 /* Now try the base path. */
2329 if (!pl
->require_machine_suffix
2330 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2332 const char *this_multi
;
2333 size_t this_multi_len
;
2335 if (pl
->os_multilib
)
2337 this_multi
= multi_os_dir
;
2338 this_multi_len
= multi_os_dir_len
;
2342 this_multi
= multi_dir
;
2343 this_multi_len
= multi_dir_len
;
2347 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2351 ret
= callback (path
, callback_info
);
2359 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2362 /* Run through the paths again, this time without multilibs.
2363 Don't repeat any we have already seen. */
2366 free (CONST_CAST (char *, multi_dir
));
2368 free (CONST_CAST (char *, multi_suffix
));
2369 multi_suffix
= machine_suffix
;
2370 free (CONST_CAST (char *, just_multi_suffix
));
2371 just_multi_suffix
= just_machine_suffix
;
2374 skip_multi_dir
= true;
2377 free (CONST_CAST (char *, multi_os_dir
));
2378 multi_os_dir
= NULL
;
2381 skip_multi_os_dir
= true;
2386 free (CONST_CAST (char *, multi_dir
));
2387 free (CONST_CAST (char *, multi_suffix
));
2388 free (CONST_CAST (char *, just_multi_suffix
));
2391 free (CONST_CAST (char *, multi_os_dir
));
2397 /* Callback for build_search_list. Adds path to obstack being built. */
2399 struct add_to_obstack_info
{
2406 add_to_obstack (char *path
, void *data
)
2408 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2410 if (info
->check_dir
&& !is_directory (path
, false))
2413 if (!info
->first_time
)
2414 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2416 obstack_grow (info
->ob
, path
, strlen (path
));
2418 info
->first_time
= false;
2422 /* Add or change the value of an environment variable, outputting the
2423 change to standard error if in verbose mode. */
2425 xputenv (const char *string
)
2428 fnotice (stderr
, "%s\n", string
);
2429 putenv (CONST_CAST (char *, string
));
2432 /* Build a list of search directories from PATHS.
2433 PREFIX is a string to prepend to the list.
2434 If CHECK_DIR_P is true we ensure the directory exists.
2435 If DO_MULTI is true, multilib paths are output first, then
2437 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2438 It is also used by the --print-search-dirs flag. */
2441 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2442 bool check_dir
, bool do_multi
)
2444 struct add_to_obstack_info info
;
2446 info
.ob
= &collect_obstack
;
2447 info
.check_dir
= check_dir
;
2448 info
.first_time
= true;
2450 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2451 obstack_1grow (&collect_obstack
, '=');
2453 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2455 obstack_1grow (&collect_obstack
, '\0');
2456 return XOBFINISH (&collect_obstack
, char *);
2459 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2463 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2466 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2469 /* Check whether NAME can be accessed in MODE. This is like access,
2470 except that it never considers directories to be executable. */
2473 access_check (const char *name
, int mode
)
2479 if (stat (name
, &st
) < 0
2480 || S_ISDIR (st
.st_mode
))
2484 return access (name
, mode
);
2487 /* Callback for find_a_file. Appends the file name to the directory
2488 path. If the resulting file exists in the right mode, return the
2489 full pathname to the file. */
2491 struct file_at_path_info
{
2500 file_at_path (char *path
, void *data
)
2502 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2503 size_t len
= strlen (path
);
2505 memcpy (path
+ len
, info
->name
, info
->name_len
);
2506 len
+= info
->name_len
;
2508 /* Some systems have a suffix for executable files.
2509 So try appending that first. */
2510 if (info
->suffix_len
)
2512 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2513 if (access_check (path
, info
->mode
) == 0)
2518 if (access_check (path
, info
->mode
) == 0)
2524 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2525 access to check permissions. If DO_MULTI is true, search multilib
2526 paths then non-multilib paths, otherwise do not search multilib paths.
2527 Return 0 if not found, otherwise return its name, allocated with malloc. */
2530 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2533 struct file_at_path_info info
;
2535 #ifdef DEFAULT_ASSEMBLER
2536 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2537 return xstrdup (DEFAULT_ASSEMBLER
);
2540 #ifdef DEFAULT_LINKER
2541 if (! strcmp (name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2542 return xstrdup (DEFAULT_LINKER
);
2545 /* Determine the filename to execute (special case for absolute paths). */
2547 if (IS_ABSOLUTE_PATH (name
))
2549 if (access (name
, mode
) == 0)
2550 return xstrdup (name
);
2556 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2557 info
.name_len
= strlen (info
.name
);
2558 info
.suffix_len
= strlen (info
.suffix
);
2561 return (char*) for_each_path (pprefix
, do_multi
,
2562 info
.name_len
+ info
.suffix_len
,
2563 file_at_path
, &info
);
2566 /* Ranking of prefixes in the sort list. -B prefixes are put before
2569 enum path_prefix_priority
2571 PREFIX_PRIORITY_B_OPT
,
2572 PREFIX_PRIORITY_LAST
2575 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2576 order according to PRIORITY. Within each PRIORITY, new entries are
2579 If WARN is nonzero, we will warn if no file is found
2580 through this prefix. WARN should point to an int
2581 which will be set to 1 if this entry is used.
2583 COMPONENT is the value to be passed to update_path.
2585 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2586 the complete value of machine_suffix.
2587 2 means try both machine_suffix and just_machine_suffix. */
2590 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2591 const char *component
, /* enum prefix_priority */ int priority
,
2592 int require_machine_suffix
, int os_multilib
)
2594 struct prefix_list
*pl
, **prev
;
2597 for (prev
= &pprefix
->plist
;
2598 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2599 prev
= &(*prev
)->next
)
2602 /* Keep track of the longest prefix. */
2604 prefix
= update_path (prefix
, component
);
2605 len
= strlen (prefix
);
2606 if (len
> pprefix
->max_len
)
2607 pprefix
->max_len
= len
;
2609 pl
= XNEW (struct prefix_list
);
2610 pl
->prefix
= prefix
;
2611 pl
->require_machine_suffix
= require_machine_suffix
;
2612 pl
->priority
= priority
;
2613 pl
->os_multilib
= os_multilib
;
2615 /* Insert after PREV. */
2620 /* Same as add_prefix, but prepending target_system_root to prefix. */
2621 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2623 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2624 const char *component
,
2625 /* enum prefix_priority */ int priority
,
2626 int require_machine_suffix
, int os_multilib
)
2628 if (!IS_ABSOLUTE_PATH (prefix
))
2629 fatal_error ("system path %qs is not absolute", prefix
);
2631 if (target_system_root
)
2633 char *sysroot_no_trailing_dir_separator
= xstrdup (target_system_root
);
2634 size_t sysroot_len
= strlen (target_system_root
);
2637 && target_system_root
[sysroot_len
- 1] == DIR_SEPARATOR
)
2638 sysroot_no_trailing_dir_separator
[sysroot_len
- 1] = '\0';
2640 if (target_sysroot_suffix
)
2641 prefix
= concat (sysroot_no_trailing_dir_separator
,
2642 target_sysroot_suffix
, prefix
, NULL
);
2644 prefix
= concat (sysroot_no_trailing_dir_separator
, prefix
, NULL
);
2646 free (sysroot_no_trailing_dir_separator
);
2648 /* We have to override this because GCC's notion of sysroot
2649 moves along with GCC. */
2653 add_prefix (pprefix
, prefix
, component
, priority
,
2654 require_machine_suffix
, os_multilib
);
2657 /* Execute the command specified by the arguments on the current line of spec.
2658 When using pipes, this includes several piped-together commands
2659 with `|' between them.
2661 Return 0 if successful, -1 if failed. */
2667 int n_commands
; /* # of command. */
2669 struct pex_obj
*pex
;
2672 const char *prog
; /* program name. */
2673 const char **argv
; /* vector of args. */
2677 struct command
*commands
; /* each command buffer with above info. */
2679 gcc_assert (!processing_spec_function
);
2683 string
= find_a_file (&exec_prefixes
,
2684 argbuf
[0], X_OK
, false);
2687 insert_wrapper (wrapper_string
);
2690 /* Count # of piped commands. */
2691 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2692 if (strcmp (arg
, "|") == 0)
2695 /* Get storage for each command. */
2696 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2698 /* Split argbuf into its separate piped processes,
2699 and record info about each one.
2700 Also search for the programs that are to be run. */
2702 argbuf
.safe_push (0);
2704 commands
[0].prog
= argbuf
[0]; /* first command. */
2705 commands
[0].argv
= argbuf
.address ();
2707 if (!wrapper_string
)
2709 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2710 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2713 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2714 if (arg
&& strcmp (arg
, "|") == 0)
2715 { /* each command. */
2716 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2717 fatal_error ("-pipe not supported");
2719 argbuf
[i
] = 0; /* Termination of
2721 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2722 commands
[n_commands
].argv
2723 = &(argbuf
.address ())[i
+ 1];
2724 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2727 commands
[n_commands
].argv
[0] = string
;
2731 /* If -v, print what we are about to do, and maybe query. */
2735 /* For help listings, put a blank line between sub-processes. */
2736 if (print_help_list
)
2737 fputc ('\n', stderr
);
2739 /* Print each piped command as a separate line. */
2740 for (i
= 0; i
< n_commands
; i
++)
2742 const char *const *j
;
2744 if (verbose_only_flag
)
2746 for (j
= commands
[i
].argv
; *j
; j
++)
2749 for (p
= *j
; *p
; ++p
)
2750 if (!ISALNUM ((unsigned char) *p
)
2751 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
2755 fprintf (stderr
, " \"");
2756 for (p
= *j
; *p
; ++p
)
2758 if (*p
== '"' || *p
== '\\' || *p
== '$')
2759 fputc ('\\', stderr
);
2762 fputc ('"', stderr
);
2764 /* If it's empty, print "". */
2766 fprintf (stderr
, " \"\"");
2768 fprintf (stderr
, " %s", *j
);
2772 for (j
= commands
[i
].argv
; *j
; j
++)
2773 /* If it's empty, print "". */
2775 fprintf (stderr
, " \"\"");
2777 fprintf (stderr
, " %s", *j
);
2779 /* Print a pipe symbol after all but the last command. */
2780 if (i
+ 1 != n_commands
)
2781 fprintf (stderr
, " |");
2782 fprintf (stderr
, "\n");
2785 if (verbose_only_flag
!= 0)
2787 /* verbose_only_flag should act as if the spec was
2788 executed, so increment execution_count before
2789 returning. This prevents spurious warnings about
2790 unused linker input files, etc. */
2795 fnotice (stderr
, "\nGo ahead? (y or n) ");
2799 while (getchar () != '\n')
2802 if (i
!= 'y' && i
!= 'Y')
2807 #ifdef ENABLE_VALGRIND_CHECKING
2808 /* Run the each command through valgrind. To simplify prepending the
2809 path to valgrind and the option "-q" (for quiet operation unless
2810 something triggers), we allocate a separate argv array. */
2812 for (i
= 0; i
< n_commands
; i
++)
2818 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2821 argv
= XALLOCAVEC (const char *, argc
+ 3);
2823 argv
[0] = VALGRIND_PATH
;
2825 for (j
= 2; j
< argc
+ 2; j
++)
2826 argv
[j
] = commands
[i
].argv
[j
- 2];
2829 commands
[i
].argv
= argv
;
2830 commands
[i
].prog
= argv
[0];
2834 /* Run each piped subprocess. */
2836 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
2837 ? PEX_RECORD_TIMES
: 0),
2838 progname
, temp_filename
);
2840 fatal_error ("pex_init failed: %m");
2842 for (i
= 0; i
< n_commands
; i
++)
2846 const char *string
= commands
[i
].argv
[0];
2848 errmsg
= pex_run (pex
,
2849 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
2850 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
2851 string
, CONST_CAST (char **, commands
[i
].argv
),
2856 fatal_error (errmsg
);
2860 pfatal_with_name (errmsg
);
2864 if (i
&& string
!= commands
[i
].prog
)
2865 free (CONST_CAST (char *, string
));
2870 /* Wait for all the subprocesses to finish. */
2874 struct pex_time
*times
= NULL
;
2877 statuses
= (int *) alloca (n_commands
* sizeof (int));
2878 if (!pex_get_status (pex
, n_commands
, statuses
))
2879 fatal_error ("failed to get exit status: %m");
2881 if (report_times
|| report_times_to_file
)
2883 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
2884 if (!pex_get_times (pex
, n_commands
, times
))
2885 fatal_error ("failed to get process times: %m");
2890 for (i
= 0; i
< n_commands
; ++i
)
2892 int status
= statuses
[i
];
2894 if (WIFSIGNALED (status
))
2897 /* SIGPIPE is a special case. It happens in -pipe mode
2898 when the compiler dies before the preprocessor is done,
2899 or the assembler dies before the compiler is done.
2900 There's generally been an error already, and this is
2901 just fallout. So don't generate another error unless
2902 we would otherwise have succeeded. */
2903 if (WTERMSIG (status
) == SIGPIPE
2904 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2911 internal_error ("%s (program %s)",
2912 strsignal (WTERMSIG (status
)), commands
[i
].prog
);
2914 else if (WIFEXITED (status
)
2915 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2917 /* For ICEs in cc1, cc1obj, cc1plus see if it is
2918 reproducible or not. */
2921 && WEXITSTATUS (status
) == ICE_EXIT_CODE
2923 && (p
= strrchr (commands
[0].argv
[0], DIR_SEPARATOR
))
2924 && ! strncmp (p
+ 1, "cc1", 3))
2925 try_generate_repro (commands
[0].argv
);
2926 if (WEXITSTATUS (status
) > greatest_status
)
2927 greatest_status
= WEXITSTATUS (status
);
2931 if (report_times
|| report_times_to_file
)
2933 struct pex_time
*pt
= ×
[i
];
2936 ut
= ((double) pt
->user_seconds
2937 + (double) pt
->user_microseconds
/ 1.0e6
);
2938 st
= ((double) pt
->system_seconds
2939 + (double) pt
->system_microseconds
/ 1.0e6
);
2944 fnotice (stderr
, "# %s %.2f %.2f\n",
2945 commands
[i
].prog
, ut
, st
);
2947 if (report_times_to_file
)
2950 const char *const *j
;
2952 fprintf (report_times_to_file
, "%g %g", ut
, st
);
2954 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
2957 for (p
= *j
; *p
; ++p
)
2958 if (*p
== '"' || *p
== '\\' || *p
== '$'
2964 fprintf (report_times_to_file
, " \"");
2965 for (p
= *j
; *p
; ++p
)
2967 if (*p
== '"' || *p
== '\\' || *p
== '$')
2968 fputc ('\\', report_times_to_file
);
2969 fputc (*p
, report_times_to_file
);
2971 fputc ('"', report_times_to_file
);
2974 fprintf (report_times_to_file
, " %s", *j
);
2977 fputc ('\n', report_times_to_file
);
2983 if (commands
[0].argv
[0] != commands
[0].prog
)
2984 free (CONST_CAST (char *, commands
[0].argv
[0]));
2990 /* Find all the switches given to us
2991 and make a vector describing them.
2992 The elements of the vector are strings, one per switch given.
2993 If a switch uses following arguments, then the `part1' field
2994 is the switch itself and the `args' field
2995 is a null-terminated vector containing the following arguments.
2996 Bits in the `live_cond' field are:
2997 SWITCH_LIVE to indicate this switch is true in a conditional spec.
2998 SWITCH_FALSE to indicate this switch is overridden by a later switch.
2999 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3000 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored
3001 in all do_spec calls afterwards. Used for %<S from self specs.
3002 The `validated' field is nonzero if any spec has looked at this switch;
3003 if it remains zero at the end of the run, it must be meaningless. */
3005 #define SWITCH_LIVE (1 << 0)
3006 #define SWITCH_FALSE (1 << 1)
3007 #define SWITCH_IGNORE (1 << 2)
3008 #define SWITCH_IGNORE_PERMANENTLY (1 << 3)
3009 #define SWITCH_KEEP_FOR_GCC (1 << 4)
3015 unsigned int live_cond
;
3021 static struct switchstr
*switches
;
3023 static int n_switches
;
3025 static int n_switches_alloc
;
3027 /* Set to zero if -fcompare-debug is disabled, positive if it's
3028 enabled and we're running the first compilation, negative if it's
3029 enabled and we're running the second compilation. For most of the
3030 time, it's in the range -1..1, but it can be temporarily set to 2
3031 or 3 to indicate that the -fcompare-debug flags didn't come from
3032 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3033 variable, until a synthesized -fcompare-debug flag is added to the
3037 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3038 int compare_debug_second
;
3040 /* Set to the flags that should be passed to the second compilation in
3041 a -fcompare-debug compilation. */
3042 const char *compare_debug_opt
;
3044 static struct switchstr
*switches_debug_check
[2];
3046 static int n_switches_debug_check
[2];
3048 static int n_switches_alloc_debug_check
[2];
3050 static char *debug_check_temp_file
[2];
3052 /* Language is one of three things:
3054 1) The name of a real programming language.
3055 2) NULL, indicating that no one has figured out
3057 3) '*', indicating that the file should be passed
3062 const char *language
;
3063 struct compiler
*incompiler
;
3068 /* Also a vector of input files specified. */
3070 static struct infile
*infiles
;
3074 static int n_infiles_alloc
;
3076 /* True if multiple input files are being compiled to a single
3079 static bool combine_inputs
;
3081 /* This counts the number of libraries added by lang_specific_driver, so that
3082 we can tell if there were any user supplied any files or libraries. */
3084 static int added_libraries
;
3086 /* And a vector of corresponding output files is made up later. */
3088 const char **outfiles
;
3090 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3092 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3093 is true if we should look for an executable suffix. DO_OBJ
3094 is true if we should look for an object suffix. */
3097 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3098 int do_obj ATTRIBUTE_UNUSED
)
3100 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3108 len
= strlen (name
);
3110 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3111 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3112 if (do_obj
&& len
> 2
3113 && name
[len
- 2] == '.'
3114 && name
[len
- 1] == 'o')
3116 obstack_grow (&obstack
, name
, len
- 2);
3117 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3118 name
= XOBFINISH (&obstack
, const char *);
3122 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3123 /* If there is no filetype, make it the executable suffix (which includes
3124 the "."). But don't get confused if we have just "-o". */
3125 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3128 for (i
= len
- 1; i
>= 0; i
--)
3129 if (IS_DIR_SEPARATOR (name
[i
]))
3132 for (i
++; i
< len
; i
++)
3136 obstack_grow (&obstack
, name
, len
);
3137 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3138 strlen (TARGET_EXECUTABLE_SUFFIX
));
3139 name
= XOBFINISH (&obstack
, const char *);
3146 /* Display the command line switches accepted by gcc. */
3150 printf (_("Usage: %s [options] file...\n"), progname
);
3151 fputs (_("Options:\n"), stdout
);
3153 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3154 fputs (_(" --help Display this information\n"), stdout
);
3155 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3156 fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...]\n"), stdout
);
3157 fputs (_(" Display specific types of command line options\n"), stdout
);
3159 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3160 fputs (_(" --version Display compiler version information\n"), stdout
);
3161 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3162 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3163 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3164 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3165 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3166 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3167 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3169 -print-multiarch Display the target's normalized GNU triplet, used as\n\
3170 a component in the library path\n"), stdout
);
3171 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3173 -print-multi-lib Display the mapping between command line options and\n\
3174 multiple library search directories\n"), stdout
);
3175 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3176 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout
);
3177 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
3178 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3179 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3180 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3181 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3182 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3183 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3184 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3185 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout
);
3187 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3188 prefixes to other gcc components\n"), stdout
);
3189 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3190 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3191 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3192 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3194 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3195 and libraries\n"), stdout
);
3196 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3197 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3198 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3199 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3200 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3201 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3202 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3203 fputs (_(" -pie Create a position independent executable\n"), stdout
);
3204 fputs (_(" -shared Create a shared library\n"), stdout
);
3206 -x <language> Specify the language of the following input files\n\
3207 Permissible languages include: c c++ assembler none\n\
3208 'none' means revert to the default behavior of\n\
3209 guessing the language based on the file's extension\n\
3213 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3214 passed on to the various sub-processes invoked by %s. In order to pass\n\
3215 other options on to these processes the -W<letter> options must be used.\n\
3218 /* The rest of the options are displayed by invocations of the various
3223 add_preprocessor_option (const char *option
, int len
)
3225 preprocessor_options
.safe_push (save_string (option
, len
));
3229 add_assembler_option (const char *option
, int len
)
3231 assembler_options
.safe_push (save_string (option
, len
));
3235 add_linker_option (const char *option
, int len
)
3237 linker_options
.safe_push (save_string (option
, len
));
3240 /* Allocate space for an input file in infiles. */
3245 if (n_infiles_alloc
== 0)
3247 n_infiles_alloc
= 16;
3248 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3250 else if (n_infiles_alloc
== n_infiles
)
3252 n_infiles_alloc
*= 2;
3253 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3257 /* Store an input file with the given NAME and LANGUAGE in
3261 add_infile (const char *name
, const char *language
)
3264 infiles
[n_infiles
].name
= name
;
3265 infiles
[n_infiles
++].language
= language
;
3268 /* Allocate space for a switch in switches. */
3273 if (n_switches_alloc
== 0)
3275 n_switches_alloc
= 16;
3276 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3278 else if (n_switches_alloc
== n_switches
)
3280 n_switches_alloc
*= 2;
3281 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3285 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3286 as validated if VALIDATED and KNOWN if it is an internal switch. */
3289 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3290 bool validated
, bool known
)
3293 switches
[n_switches
].part1
= opt
+ 1;
3295 switches
[n_switches
].args
= 0;
3298 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3299 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3300 switches
[n_switches
].args
[n_args
] = NULL
;
3303 switches
[n_switches
].live_cond
= 0;
3304 switches
[n_switches
].validated
= validated
;
3305 switches
[n_switches
].known
= known
;
3306 switches
[n_switches
].ordering
= 0;
3310 /* Handle an option DECODED that is unknown to the option-processing
3314 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3316 const char *opt
= decoded
->arg
;
3317 if (opt
[1] == 'W' && opt
[2] == 'n' && opt
[3] == 'o' && opt
[4] == '-'
3318 && !(decoded
->errors
& CL_ERR_NEGATIVE
))
3320 /* Leave unknown -Wno-* options for the compiler proper, to be
3321 diagnosed only if there are warnings. */
3322 save_switch (decoded
->canonical_option
[0],
3323 decoded
->canonical_option_num_elements
- 1,
3324 &decoded
->canonical_option
[1], false, true);
3327 if (decoded
->opt_index
== OPT_SPECIAL_unknown
)
3329 /* Give it a chance to define it a a spec file. */
3330 save_switch (decoded
->canonical_option
[0],
3331 decoded
->canonical_option_num_elements
- 1,
3332 &decoded
->canonical_option
[1], false, false);
3339 /* Handle an option DECODED that is not marked as CL_DRIVER.
3340 LANG_MASK will always be CL_DRIVER. */
3343 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3344 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3346 /* At this point, non-driver options are accepted (and expected to
3347 be passed down by specs) unless marked to be rejected by the
3348 driver. Options to be rejected by the driver but accepted by the
3349 compilers proper are treated just like completely unknown
3351 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3353 if (option
->cl_reject_driver
)
3354 error ("unrecognized command line option %qs",
3355 decoded
->orig_option_with_args_text
);
3357 save_switch (decoded
->canonical_option
[0],
3358 decoded
->canonical_option_num_elements
- 1,
3359 &decoded
->canonical_option
[1], false, true);
3362 static const char *spec_lang
= 0;
3363 static int last_language_n_infiles
;
3365 /* Parse -foffload option argument. */
3368 handle_foffload_option (const char *arg
)
3370 const char *c
, *cur
, *n
, *next
, *end
;
3373 /* If option argument starts with '-' then no target is specified and we
3374 do not need to parse it. */
3378 end
= strchr (arg
, '=');
3380 end
= strchr (arg
, '\0');
3385 next
= strchr (cur
, ',');
3387 next
= strchr (cur
, '\0');
3388 next
= (next
> end
) ? end
: next
;
3390 target
= XNEWVEC (char, next
- cur
+ 1);
3391 strncpy (target
, cur
, next
- cur
);
3392 target
[next
- cur
] = '\0';
3394 /* If 'disable' is passed to the option, stop parsing the option and clean
3395 the list of offload targets. */
3396 if (strcmp (target
, "disable") == 0)
3398 free (offload_targets
);
3399 offload_targets
= xstrdup ("");
3403 /* Check that GCC is configured to support the offload target. */
3404 c
= OFFLOAD_TARGETS
;
3407 n
= strchr (c
, ',');
3409 n
= strchr (c
, '\0');
3411 if (strlen (target
) == (size_t) (n
- c
)
3412 && strncmp (target
, c
, n
- c
) == 0)
3415 c
= *n
? n
+ 1 : NULL
;
3419 fatal_error ("GCC is not configured to support %s as offload target",
3422 if (!offload_targets
)
3423 offload_targets
= xstrdup (target
);
3426 /* Check that the target hasn't already presented in the list. */
3427 c
= offload_targets
;
3430 n
= strchr (c
, ':');
3432 n
= strchr (c
, '\0');
3434 if (strlen (target
) == (size_t) (n
- c
)
3435 && strncmp (c
, target
, n
- c
) == 0)
3442 /* If duplicate is not found, append the target to the list. */
3446 = XRESIZEVEC (char, offload_targets
,
3447 strlen (offload_targets
) + strlen (target
) + 2);
3448 if (strlen (offload_targets
) != 0)
3449 strcat (offload_targets
, ":");
3450 strcat (offload_targets
, target
);
3455 XDELETEVEC (target
);
3459 /* Handle a driver option; arguments and return value as for
3463 driver_handle_option (struct gcc_options
*opts
,
3464 struct gcc_options
*opts_set
,
3465 const struct cl_decoded_option
*decoded
,
3466 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
3468 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
,
3469 diagnostic_context
*dc
)
3471 size_t opt_index
= decoded
->opt_index
;
3472 const char *arg
= decoded
->arg
;
3473 const char *compare_debug_replacement_opt
;
3474 int value
= decoded
->value
;
3475 bool validated
= false;
3476 bool do_save
= true;
3478 gcc_assert (opts
== &global_options
);
3479 gcc_assert (opts_set
== &global_options_set
);
3480 gcc_assert (kind
== DK_UNSPECIFIED
);
3481 gcc_assert (loc
== UNKNOWN_LOCATION
);
3482 gcc_assert (dc
== global_dc
);
3488 struct spec_list
*sl
;
3490 for (sl
= specs
; sl
; sl
= sl
->next
)
3491 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3492 if (link_command_spec
)
3493 printf ("*link_command:\n%s\n\n", link_command_spec
);
3497 case OPT_dumpversion
:
3498 printf ("%s\n", spec_version
);
3501 case OPT_dumpmachine
:
3502 printf ("%s\n", spec_machine
);
3508 /* CPP driver cannot obtain switch from cc1_options. */
3510 add_preprocessor_option ("--version", strlen ("--version"));
3511 add_assembler_option ("--version", strlen ("--version"));
3512 add_linker_option ("--version", strlen ("--version"));
3516 print_help_list
= 1;
3518 /* CPP driver cannot obtain switch from cc1_options. */
3520 add_preprocessor_option ("--help", 6);
3521 add_assembler_option ("--help", 6);
3522 add_linker_option ("--help", 6);
3526 print_subprocess_help
= 2;
3529 case OPT__target_help
:
3530 print_subprocess_help
= 1;
3532 /* CPP driver cannot obtain switch from cc1_options. */
3534 add_preprocessor_option ("--target-help", 13);
3535 add_assembler_option ("--target-help", 13);
3536 add_linker_option ("--target-help", 13);
3539 case OPT__no_sysroot_suffix
:
3540 case OPT_pass_exit_codes
:
3541 case OPT_print_search_dirs
:
3542 case OPT_print_file_name_
:
3543 case OPT_print_prog_name_
:
3544 case OPT_print_multi_lib
:
3545 case OPT_print_multi_directory
:
3546 case OPT_print_sysroot
:
3547 case OPT_print_multi_os_directory
:
3548 case OPT_print_multiarch
:
3549 case OPT_print_sysroot_headers_suffix
:
3552 /* These options set the variables specified in common.opt
3553 automatically, and do not need to be saved for spec
3558 case OPT_print_libgcc_file_name
:
3559 print_file_name
= "libgcc.a";
3563 case OPT_fuse_ld_bfd
:
3567 case OPT_fuse_ld_gold
:
3571 case OPT_fcompare_debug_second
:
3572 compare_debug_second
= 1;
3575 case OPT_fcompare_debug
:
3579 compare_debug_replacement_opt
= "-fcompare-debug=";
3581 goto compare_debug_with_arg
;
3584 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
3586 goto compare_debug_with_arg
;
3593 case OPT_fcompare_debug_
:
3594 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
3595 compare_debug_with_arg
:
3596 gcc_assert (decoded
->canonical_option_num_elements
== 1);
3597 gcc_assert (arg
!= NULL
);
3602 if (compare_debug
< 0)
3603 compare_debug_opt
= NULL
;
3605 compare_debug_opt
= arg
;
3606 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
, true);
3612 /* Pass the rest of this option to the assembler. */
3614 /* Split the argument at commas. */
3616 for (j
= 0; arg
[j
]; j
++)
3619 add_assembler_option (arg
+ prev
, j
- prev
);
3623 /* Record the part after the last comma. */
3624 add_assembler_option (arg
+ prev
, j
- prev
);
3632 /* Pass the rest of this option to the preprocessor. */
3634 /* Split the argument at commas. */
3636 for (j
= 0; arg
[j
]; j
++)
3639 add_preprocessor_option (arg
+ prev
, j
- prev
);
3643 /* Record the part after the last comma. */
3644 add_preprocessor_option (arg
+ prev
, j
- prev
);
3652 /* Split the argument at commas. */
3654 for (j
= 0; arg
[j
]; j
++)
3657 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
3660 /* Record the part after the last comma. */
3661 add_infile (arg
+ prev
, "*");
3667 add_infile (arg
, "*");
3671 case OPT_Xpreprocessor
:
3672 add_preprocessor_option (arg
, strlen (arg
));
3676 case OPT_Xassembler
:
3677 add_assembler_option (arg
, strlen (arg
));
3682 /* POSIX allows separation of -l and the lib arg; canonicalize
3683 by concatenating -l with its arg */
3684 add_infile (concat ("-l", arg
, NULL
), "*");
3689 /* Similarly, canonicalize -L for linkers that may not accept
3690 separate arguments. */
3691 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
, true);
3696 save_switch (concat ("-F", arg
, NULL
), 0, NULL
, validated
, true);
3699 case OPT_save_temps
:
3700 save_temps_flag
= SAVE_TEMPS_CWD
;
3704 case OPT_save_temps_
:
3705 if (strcmp (arg
, "cwd") == 0)
3706 save_temps_flag
= SAVE_TEMPS_CWD
;
3707 else if (strcmp (arg
, "obj") == 0
3708 || strcmp (arg
, "object") == 0)
3709 save_temps_flag
= SAVE_TEMPS_OBJ
;
3711 fatal_error ("%qs is an unknown -save-temps option",
3712 decoded
->orig_option_with_args_text
);
3715 case OPT_no_canonical_prefixes
:
3716 /* Already handled as a special case, so ignored here. */
3722 /* These options set the variables specified in common.opt
3723 automatically, but do need to be saved for spec
3729 struct user_specs
*user
= XNEW (struct user_specs
);
3731 user
->next
= (struct user_specs
*) 0;
3732 user
->filename
= arg
;
3733 if (user_specs_tail
)
3734 user_specs_tail
->next
= user
;
3736 user_specs_head
= user
;
3737 user_specs_tail
= user
;
3743 target_system_root
= arg
;
3744 target_system_root_changed
= 1;
3749 if (report_times_to_file
)
3750 fclose (report_times_to_file
);
3751 report_times_to_file
= fopen (arg
, "a");
3757 This is similar to -v except that there is no execution
3758 of the commands and the echoed arguments are quoted. It
3759 is intended for use in shell scripts to capture the
3760 driver-generated command line. */
3761 verbose_only_flag
++;
3768 size_t len
= strlen (arg
);
3770 /* Catch the case where the user has forgotten to append a
3771 directory separator to the path. Note, they may be using
3772 -B to add an executable name prefix, eg "i386-elf-", in
3773 order to distinguish between multiple installations of
3774 GCC in the same directory. Hence we must check to see
3775 if appending a directory separator actually makes a
3776 valid directory name. */
3777 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
3778 && is_directory (arg
, false))
3780 char *tmp
= XNEWVEC (char, len
+ 2);
3782 tmp
[len
] = DIR_SEPARATOR
;
3787 add_prefix (&exec_prefixes
, arg
, NULL
,
3788 PREFIX_PRIORITY_B_OPT
, 0, 0);
3789 add_prefix (&startfile_prefixes
, arg
, NULL
,
3790 PREFIX_PRIORITY_B_OPT
, 0, 0);
3791 add_prefix (&include_prefixes
, arg
, NULL
,
3792 PREFIX_PRIORITY_B_OPT
, 0, 0);
3799 if (!strcmp (spec_lang
, "none"))
3800 /* Suppress the warning if -xnone comes after the last input
3801 file, because alternate command interfaces like g++ might
3802 find it useful to place -xnone after each input file. */
3805 last_language_n_infiles
= n_infiles
;
3811 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3812 arg
= convert_filename (arg
, ! have_c
, 0);
3815 /* Save the output name in case -save-temps=obj was used. */
3816 save_temps_prefix
= xstrdup (arg
);
3817 /* On some systems, ld cannot handle "-o" without a space. So
3818 split the option from its argument. */
3819 save_switch ("-o", 1, &arg
, validated
, true);
3822 case OPT_static_libgcc
:
3823 case OPT_shared_libgcc
:
3824 case OPT_static_libgfortran
:
3825 case OPT_static_libstdc__
:
3826 /* These are always valid, since gcc.c itself understands the
3827 first two, gfortranspec.c understands -static-libgfortran and
3828 g++spec.c understands -static-libstdc++ */
3837 handle_foffload_option (arg
);
3841 /* Various driver options need no special processing at this
3842 point, having been handled in a prescan above or being
3843 handled by specs. */
3848 save_switch (decoded
->canonical_option
[0],
3849 decoded
->canonical_option_num_elements
- 1,
3850 &decoded
->canonical_option
[1], validated
, true);
3854 /* Put the driver's standard set of option handlers in *HANDLERS. */
3857 set_option_handlers (struct cl_option_handlers
*handlers
)
3859 handlers
->unknown_option_callback
= driver_unknown_option_callback
;
3860 handlers
->wrong_lang_callback
= driver_wrong_lang_callback
;
3861 handlers
->num_handlers
= 3;
3862 handlers
->handlers
[0].handler
= driver_handle_option
;
3863 handlers
->handlers
[0].mask
= CL_DRIVER
;
3864 handlers
->handlers
[1].handler
= common_handle_option
;
3865 handlers
->handlers
[1].mask
= CL_COMMON
;
3866 handlers
->handlers
[2].handler
= target_handle_option
;
3867 handlers
->handlers
[2].mask
= CL_TARGET
;
3870 /* Create the vector `switches' and its contents.
3871 Store its length in `n_switches'. */
3874 process_command (unsigned int decoded_options_count
,
3875 struct cl_decoded_option
*decoded_options
)
3879 char *tooldir_prefix
, *tooldir_prefix2
;
3880 char *(*get_relative_prefix
) (const char *, const char *,
3881 const char *) = NULL
;
3882 struct cl_option_handlers handlers
;
3885 gcc_exec_prefix
= getenv ("GCC_EXEC_PREFIX");
3889 added_libraries
= 0;
3891 /* Figure compiler version from version string. */
3893 compiler_version
= temp1
= xstrdup (version_string
);
3895 for (; *temp1
; ++temp1
)
3904 /* Handle any -no-canonical-prefixes flag early, to assign the function
3905 that builds relative prefixes. This function creates default search
3906 paths that are needed later in normal option handling. */
3908 for (j
= 1; j
< decoded_options_count
; j
++)
3910 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
3912 get_relative_prefix
= make_relative_prefix_ignore_links
;
3916 if (! get_relative_prefix
)
3917 get_relative_prefix
= make_relative_prefix
;
3919 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3920 see if we can create it from the pathname specified in
3921 decoded_options[0].arg. */
3923 gcc_libexec_prefix
= standard_libexec_prefix
;
3925 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3926 if (!gcc_exec_prefix
)
3928 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3929 standard_bindir_prefix
,
3930 standard_exec_prefix
);
3931 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3932 standard_bindir_prefix
,
3933 standard_libexec_prefix
);
3934 if (gcc_exec_prefix
)
3935 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3939 /* make_relative_prefix requires a program name, but
3940 GCC_EXEC_PREFIX is typically a directory name with a trailing
3941 / (which is ignored by make_relative_prefix), so append a
3943 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3944 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
3945 standard_exec_prefix
,
3946 standard_libexec_prefix
);
3948 /* The path is unrelocated, so fallback to the original setting. */
3949 if (!gcc_libexec_prefix
)
3950 gcc_libexec_prefix
= standard_libexec_prefix
;
3956 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3957 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3958 or an automatically created GCC_EXEC_PREFIX from
3959 decoded_options[0].arg. */
3961 /* Do language-specific adjustment/addition of flags. */
3962 lang_specific_driver (&decoded_options
, &decoded_options_count
,
3965 if (gcc_exec_prefix
)
3967 int len
= strlen (gcc_exec_prefix
);
3969 if (len
> (int) sizeof ("/lib/gcc/") - 1
3970 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3972 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3973 if (IS_DIR_SEPARATOR (*temp
)
3974 && filename_ncmp (temp
+ 1, "lib", 3) == 0
3975 && IS_DIR_SEPARATOR (temp
[4])
3976 && filename_ncmp (temp
+ 5, "gcc", 3) == 0)
3977 len
-= sizeof ("/lib/gcc/") - 1;
3980 set_std_prefix (gcc_exec_prefix
, len
);
3981 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3982 PREFIX_PRIORITY_LAST
, 0, 0);
3983 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3984 PREFIX_PRIORITY_LAST
, 0, 0);
3987 /* COMPILER_PATH and LIBRARY_PATH have values
3988 that are lists of directory names with colons. */
3990 temp
= getenv ("COMPILER_PATH");
3993 const char *startp
, *endp
;
3994 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3996 startp
= endp
= temp
;
3999 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4001 strncpy (nstore
, startp
, endp
- startp
);
4003 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4004 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4006 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4007 nstore
[endp
- startp
+ 1] = 0;
4010 nstore
[endp
- startp
] = 0;
4011 add_prefix (&exec_prefixes
, nstore
, 0,
4012 PREFIX_PRIORITY_LAST
, 0, 0);
4013 add_prefix (&include_prefixes
, nstore
, 0,
4014 PREFIX_PRIORITY_LAST
, 0, 0);
4017 endp
= startp
= endp
+ 1;
4024 temp
= getenv (LIBRARY_PATH_ENV
);
4025 if (temp
&& *cross_compile
== '0')
4027 const char *startp
, *endp
;
4028 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4030 startp
= endp
= temp
;
4033 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4035 strncpy (nstore
, startp
, endp
- startp
);
4037 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4038 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4040 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4041 nstore
[endp
- startp
+ 1] = 0;
4044 nstore
[endp
- startp
] = 0;
4045 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4046 PREFIX_PRIORITY_LAST
, 0, 1);
4049 endp
= startp
= endp
+ 1;
4056 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
4057 temp
= getenv ("LPATH");
4058 if (temp
&& *cross_compile
== '0')
4060 const char *startp
, *endp
;
4061 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4063 startp
= endp
= temp
;
4066 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4068 strncpy (nstore
, startp
, endp
- startp
);
4070 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4071 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4073 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4074 nstore
[endp
- startp
+ 1] = 0;
4077 nstore
[endp
- startp
] = 0;
4078 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4079 PREFIX_PRIORITY_LAST
, 0, 1);
4082 endp
= startp
= endp
+ 1;
4089 /* Process the options and store input files and switches in their
4092 last_language_n_infiles
= -1;
4094 set_option_handlers (&handlers
);
4096 for (j
= 1; j
< decoded_options_count
; j
++)
4098 switch (decoded_options
[j
].opt_index
)
4110 for (j
= 1; j
< decoded_options_count
; j
++)
4112 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
4114 const char *arg
= decoded_options
[j
].arg
;
4115 const char *p
= strrchr (arg
, '@');
4119 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4120 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
4122 /* For LTO static archive support we handle input file
4123 specifications that are composed of a filename and
4124 an offset like FNAME@OFFSET. */
4127 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
4128 && strlen (p
) == (unsigned int)consumed
)
4130 fname
= (char *)xmalloc (p
- arg
+ 1);
4131 memcpy (fname
, arg
, p
- arg
);
4132 fname
[p
- arg
] = '\0';
4133 /* Only accept non-stdin and existing FNAME parts, otherwise
4134 try with the full name. */
4135 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
4138 fname
= xstrdup (arg
);
4142 fname
= xstrdup (arg
);
4144 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
4145 perror_with_name (fname
);
4147 add_infile (arg
, spec_lang
);
4153 read_cmdline_option (&global_options
, &global_options_set
,
4154 decoded_options
+ j
, UNKNOWN_LOCATION
,
4155 CL_DRIVER
, &handlers
, global_dc
);
4159 && strcmp (output_file
, "-") != 0
4160 && strcmp (output_file
, HOST_BIT_BUCKET
) != 0)
4163 for (i
= 0; i
< n_infiles
; i
++)
4164 if ((!infiles
[i
].language
|| infiles
[i
].language
[0] != '*')
4165 && canonical_filename_eq (infiles
[i
].name
, output_file
))
4166 fatal_error ("input file %qs is the same as output file",
4170 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4171 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4172 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
4174 save_temps_length
= strlen (save_temps_prefix
);
4175 temp
= strrchr (lbasename (save_temps_prefix
), '.');
4178 save_temps_length
-= strlen (temp
);
4179 save_temps_prefix
[save_temps_length
] = '\0';
4183 else if (save_temps_prefix
!= NULL
)
4185 free (save_temps_prefix
);
4186 save_temps_prefix
= NULL
;
4189 if (save_temps_flag
&& use_pipes
)
4191 /* -save-temps overrides -pipe, so that temp files are produced */
4192 if (save_temps_flag
)
4193 warning (0, "-pipe ignored because -save-temps specified");
4199 const char *gcd
= getenv ("GCC_COMPARE_DEBUG");
4201 if (gcd
&& gcd
[0] == '-')
4204 compare_debug_opt
= gcd
;
4206 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
4209 compare_debug_opt
= "-gtoggle";
4212 else if (compare_debug
< 0)
4215 gcc_assert (!compare_debug_opt
);
4218 /* Set up the search paths. We add directories that we expect to
4219 contain GNU Toolchain components before directories specified by
4220 the machine description so that we will find GNU components (like
4221 the GNU assembler) before those of the host system. */
4223 /* If we don't know where the toolchain has been installed, use the
4224 configured-in locations. */
4225 if (!gcc_exec_prefix
)
4228 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4229 PREFIX_PRIORITY_LAST
, 1, 0);
4230 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4231 PREFIX_PRIORITY_LAST
, 2, 0);
4232 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4233 PREFIX_PRIORITY_LAST
, 2, 0);
4235 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4236 PREFIX_PRIORITY_LAST
, 1, 0);
4239 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4240 tooldir_prefix2
= concat (tooldir_base_prefix
, spec_host_machine
,
4241 dir_separator_str
, NULL
);
4243 /* Look for tools relative to the location from which the driver is
4244 running, or, if that is not available, the configured prefix. */
4246 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4247 spec_host_machine
, dir_separator_str
, spec_version
,
4248 accel_dir_suffix
, dir_separator_str
, tooldir_prefix2
, NULL
);
4249 free (tooldir_prefix2
);
4251 add_prefix (&exec_prefixes
,
4252 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4253 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4254 add_prefix (&startfile_prefixes
,
4255 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4256 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4257 free (tooldir_prefix
);
4259 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4260 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4261 then consider it to relocate with the rest of the GCC installation
4262 if GCC_EXEC_PREFIX is set.
4263 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4264 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
4266 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4267 standard_bindir_prefix
,
4268 target_system_root
);
4269 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4271 target_system_root
= tmp_prefix
;
4272 target_system_root_changed
= 1;
4277 /* More prefixes are enabled in main, after we read the specs file
4278 and determine whether this is cross-compilation or not. */
4280 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4281 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
4283 /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG
4284 environment variable. */
4285 if (compare_debug
== 2 || compare_debug
== 3)
4287 const char *opt
= concat ("-fcompare-debug=", compare_debug_opt
, NULL
);
4288 save_switch (opt
, 0, NULL
, false, true);
4292 /* Ensure we only invoke each subprocess once. */
4293 if (print_subprocess_help
|| print_help_list
|| print_version
)
4297 /* Create a dummy input file, so that we can pass
4298 the help option on to the various sub-processes. */
4299 add_infile ("help-dummy", "c");
4303 switches
[n_switches
].part1
= 0;
4305 infiles
[n_infiles
].name
= 0;
4308 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4309 and place that in the environment. */
4312 set_collect_gcc_options (void)
4317 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4319 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4320 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4323 for (i
= 0; (int) i
< n_switches
; i
++)
4325 const char *const *args
;
4328 obstack_grow (&collect_obstack
, " ", 1);
4332 /* Ignore elided switches. */
4333 if ((switches
[i
].live_cond
4334 & (SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
))
4338 obstack_grow (&collect_obstack
, "'-", 2);
4339 q
= switches
[i
].part1
;
4340 while ((p
= strchr (q
, '\'')))
4342 obstack_grow (&collect_obstack
, q
, p
- q
);
4343 obstack_grow (&collect_obstack
, "'\\''", 4);
4346 obstack_grow (&collect_obstack
, q
, strlen (q
));
4347 obstack_grow (&collect_obstack
, "'", 1);
4349 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4351 obstack_grow (&collect_obstack
, " '", 2);
4353 while ((p
= strchr (q
, '\'')))
4355 obstack_grow (&collect_obstack
, q
, p
- q
);
4356 obstack_grow (&collect_obstack
, "'\\''", 4);
4359 obstack_grow (&collect_obstack
, q
, strlen (q
));
4360 obstack_grow (&collect_obstack
, "'", 1);
4363 obstack_grow (&collect_obstack
, "\0", 1);
4364 xputenv (XOBFINISH (&collect_obstack
, char *));
4367 /* Process a spec string, accumulating and running commands. */
4369 /* These variables describe the input file name.
4370 input_file_number is the index on outfiles of this file,
4371 so that the output file name can be stored for later use by %o.
4372 input_basename is the start of the part of the input file
4373 sans all directory names, and basename_length is the number
4374 of characters starting there excluding the suffix .c or whatever. */
4376 static const char *gcc_input_filename
;
4377 static int input_file_number
;
4378 size_t input_filename_length
;
4379 static int basename_length
;
4380 static int suffixed_basename_length
;
4381 static const char *input_basename
;
4382 static const char *input_suffix
;
4383 #ifndef HOST_LACKS_INODE_NUMBERS
4384 static struct stat input_stat
;
4386 static int input_stat_set
;
4388 /* The compiler used to process the current input file. */
4389 static struct compiler
*input_file_compiler
;
4391 /* These are variables used within do_spec and do_spec_1. */
4393 /* Nonzero if an arg has been started and not yet terminated
4394 (with space, tab or newline). */
4395 static int arg_going
;
4397 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4398 is a temporary file name. */
4399 static int delete_this_arg
;
4401 /* Nonzero means %w has been seen; the next arg to be terminated
4402 is the output file name of this compilation. */
4403 static int this_is_output_file
;
4405 /* Nonzero means %s has been seen; the next arg to be terminated
4406 is the name of a library file and we should try the standard
4407 search dirs for it. */
4408 static int this_is_library_file
;
4410 /* Nonzero means %T has been seen; the next arg to be terminated
4411 is the name of a linker script and we should try all of the
4412 standard search dirs for it. If it is found insert a --script
4413 command line switch and then substitute the full path in place,
4414 otherwise generate an error message. */
4415 static int this_is_linker_script
;
4417 /* Nonzero means that the input of this command is coming from a pipe. */
4418 static int input_from_pipe
;
4420 /* Nonnull means substitute this for any suffix when outputting a switches
4422 static const char *suffix_subst
;
4424 /* If there is an argument being accumulated, terminate it and store it. */
4427 end_going_arg (void)
4433 obstack_1grow (&obstack
, 0);
4434 string
= XOBFINISH (&obstack
, const char *);
4435 if (this_is_library_file
)
4436 string
= find_file (string
);
4437 if (this_is_linker_script
)
4439 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4441 if (full_script_path
== NULL
)
4443 error ("unable to locate default linker script %qs in the library search paths", string
);
4444 /* Script was not found on search path. */
4447 store_arg ("--script", false, false);
4448 string
= full_script_path
;
4450 store_arg (string
, delete_this_arg
, this_is_output_file
);
4451 if (this_is_output_file
)
4452 outfiles
[input_file_number
] = string
;
4458 /* Parse the WRAPPER string which is a comma separated list of the command line
4459 and insert them into the beginning of argbuf. */
4462 insert_wrapper (const char *wrapper
)
4466 char *buf
= xstrdup (wrapper
);
4468 unsigned int old_length
= argbuf
.length ();
4476 while ((p
= strchr (p
, ',')) != NULL
);
4478 argbuf
.safe_grow (old_length
+ n
);
4479 memmove (argbuf
.address () + n
,
4481 old_length
* sizeof (const_char_p
));
4495 while ((p
= strchr (p
, ',')) != NULL
);
4496 gcc_assert (i
== n
);
4499 /* Process the spec SPEC and run the commands specified therein.
4500 Returns 0 if the spec is successfully processed; -1 if failed. */
4503 do_spec (const char *spec
)
4507 value
= do_spec_2 (spec
);
4509 /* Force out any unfinished command.
4510 If -pipe, this forces out the last command if it ended in `|'. */
4513 if (argbuf
.length () > 0
4514 && !strcmp (argbuf
.last (), "|"))
4517 set_collect_gcc_options ();
4519 if (argbuf
.length () > 0)
4527 do_spec_2 (const char *spec
)
4533 delete_this_arg
= 0;
4534 this_is_output_file
= 0;
4535 this_is_library_file
= 0;
4536 this_is_linker_script
= 0;
4537 input_from_pipe
= 0;
4538 suffix_subst
= NULL
;
4540 result
= do_spec_1 (spec
, 0, NULL
);
4548 /* Process the given spec string and add any new options to the end
4549 of the switches/n_switches array. */
4552 do_option_spec (const char *name
, const char *spec
)
4554 unsigned int i
, value_count
, value_len
;
4555 const char *p
, *q
, *value
;
4556 char *tmp_spec
, *tmp_spec_p
;
4558 if (configure_default_options
[0].name
== NULL
)
4561 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4562 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4564 if (i
== ARRAY_SIZE (configure_default_options
))
4567 value
= configure_default_options
[i
].value
;
4568 value_len
= strlen (value
);
4570 /* Compute the size of the final spec. */
4573 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4579 /* Replace each %(VALUE) by the specified value. */
4580 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4581 + value_count
* (value_len
- strlen ("%(VALUE)")));
4582 tmp_spec_p
= tmp_spec
;
4584 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4586 memcpy (tmp_spec_p
, q
, p
- q
);
4587 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4588 memcpy (tmp_spec_p
, value
, value_len
);
4589 tmp_spec_p
+= value_len
;
4590 q
= p
+ strlen ("%(VALUE)");
4592 strcpy (tmp_spec_p
, q
);
4594 do_self_spec (tmp_spec
);
4597 /* Process the given spec string and add any new options to the end
4598 of the switches/n_switches array. */
4601 do_self_spec (const char *spec
)
4606 do_spec_1 (" ", 0, NULL
);
4608 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
4609 do_self_specs adds the replacements to switches array, so it shouldn't
4610 be processed afterwards. */
4611 for (i
= 0; i
< n_switches
; i
++)
4612 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
4613 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
4615 if (argbuf
.length () > 0)
4617 const char **argbuf_copy
;
4618 struct cl_decoded_option
*decoded_options
;
4619 struct cl_option_handlers handlers
;
4620 unsigned int decoded_options_count
;
4623 /* Create a copy of argbuf with a dummy argv[0] entry for
4624 decode_cmdline_options_to_array. */
4625 argbuf_copy
= XNEWVEC (const char *,
4626 argbuf
.length () + 1);
4627 argbuf_copy
[0] = "";
4628 memcpy (argbuf_copy
+ 1, argbuf
.address (),
4629 argbuf
.length () * sizeof (const char *));
4631 decode_cmdline_options_to_array (argbuf
.length () + 1,
4633 CL_DRIVER
, &decoded_options
,
4634 &decoded_options_count
);
4637 set_option_handlers (&handlers
);
4639 for (j
= 1; j
< decoded_options_count
; j
++)
4641 switch (decoded_options
[j
].opt_index
)
4643 case OPT_SPECIAL_input_file
:
4644 /* Specs should only generate options, not input
4646 if (strcmp (decoded_options
[j
].arg
, "-") != 0)
4647 fatal_error ("switch %qs does not start with %<-%>",
4648 decoded_options
[j
].arg
);
4650 fatal_error ("spec-generated switch is just %<-%>");
4653 case OPT_fcompare_debug_second
:
4654 case OPT_fcompare_debug
:
4655 case OPT_fcompare_debug_
:
4657 /* Avoid duplicate processing of some options from
4658 compare-debug specs; just save them here. */
4659 save_switch (decoded_options
[j
].canonical_option
[0],
4660 (decoded_options
[j
].canonical_option_num_elements
4662 &decoded_options
[j
].canonical_option
[1], false, true);
4666 read_cmdline_option (&global_options
, &global_options_set
,
4667 decoded_options
+ j
, UNKNOWN_LOCATION
,
4668 CL_DRIVER
, &handlers
, global_dc
);
4674 switches
[n_switches
].part1
= 0;
4678 /* Callback for processing %D and %I specs. */
4680 struct spec_path_info
{
4685 bool separate_options
;
4689 spec_path (char *path
, void *data
)
4691 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
4695 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4698 if (info
->append_len
!= 0)
4700 len
= strlen (path
);
4701 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4704 if (!is_directory (path
, true))
4707 do_spec_1 (info
->option
, 1, NULL
);
4708 if (info
->separate_options
)
4709 do_spec_1 (" ", 0, NULL
);
4711 if (info
->append_len
== 0)
4713 len
= strlen (path
);
4714 save
= path
[len
- 1];
4715 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4716 path
[len
- 1] = '\0';
4719 do_spec_1 (path
, 1, NULL
);
4720 do_spec_1 (" ", 0, NULL
);
4722 /* Must not damage the original path. */
4723 if (info
->append_len
== 0)
4724 path
[len
- 1] = save
;
4729 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
4733 create_at_file (char **argv
)
4735 char *temp_file
= make_temp_file ("");
4736 char *at_argument
= concat ("@", temp_file
, NULL
);
4737 FILE *f
= fopen (temp_file
, "w");
4741 fatal_error ("could not open temporary response file %s",
4744 status
= writeargv (argv
, f
);
4747 fatal_error ("could not write to temporary response file %s",
4750 status
= fclose (f
);
4753 fatal_error ("could not close temporary response file %s",
4756 store_arg (at_argument
, 0, 0);
4758 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
4761 /* True if we should compile INFILE. */
4764 compile_input_file_p (struct infile
*infile
)
4766 if ((!infile
->language
) || (infile
->language
[0] != '*'))
4767 if (infile
->incompiler
== input_file_compiler
)
4772 /* Process each member of VEC as a spec. */
4775 do_specs_vec (vec
<char_p
> vec
)
4780 FOR_EACH_VEC_ELT (vec
, ix
, opt
)
4782 do_spec_1 (opt
, 1, NULL
);
4783 /* Make each accumulated option a separate argument. */
4784 do_spec_1 (" ", 0, NULL
);
4788 /* Process the sub-spec SPEC as a portion of a larger spec.
4789 This is like processing a whole spec except that we do
4790 not initialize at the beginning and we do not supply a
4791 newline by default at the end.
4792 INSWITCH nonzero means don't process %-sequences in SPEC;
4793 in this case, % is treated as an ordinary character.
4794 This is used while substituting switches.
4795 INSWITCH nonzero also causes SPC not to terminate an argument.
4797 Value is zero unless a line was finished
4798 and the command on that line reported an error. */
4801 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4803 const char *p
= spec
;
4808 /* If it's an empty string argument to a switch, keep it as is. */
4809 if (inswitch
&& !*p
)
4813 /* If substituting a switch, treat all chars like letters.
4814 Otherwise, NL, SPC, TAB and % are special. */
4815 switch (inswitch
? 'a' : c
)
4820 if (argbuf
.length () > 0
4821 && !strcmp (argbuf
.last (), "|"))
4823 /* A `|' before the newline means use a pipe here,
4824 but only if -pipe was specified.
4825 Otherwise, execute now and don't pass the `|' as an arg. */
4828 input_from_pipe
= 1;
4835 set_collect_gcc_options ();
4837 if (argbuf
.length () > 0)
4843 /* Reinitialize for a new command, and for a new argument. */
4846 delete_this_arg
= 0;
4847 this_is_output_file
= 0;
4848 this_is_library_file
= 0;
4849 this_is_linker_script
= 0;
4850 input_from_pipe
= 0;
4857 obstack_1grow (&obstack
, c
);
4865 /* Reinitialize for a new argument. */
4866 delete_this_arg
= 0;
4867 this_is_output_file
= 0;
4868 this_is_library_file
= 0;
4869 this_is_linker_script
= 0;
4876 fatal_error ("spec %qs invalid", spec
);
4879 if (save_temps_length
)
4880 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4882 obstack_grow (&obstack
, input_basename
, basename_length
);
4883 if (compare_debug
< 0)
4884 obstack_grow (&obstack
, ".gk", 3);
4889 if (save_temps_length
)
4890 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4892 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4893 if (compare_debug
< 0)
4894 obstack_grow (&obstack
, ".gk", 3);
4899 delete_this_arg
= 2;
4902 /* Dump out the directories specified with LIBRARY_PATH,
4903 followed by the absolute directories
4904 that we search for startfiles. */
4907 struct spec_path_info info
;
4910 info
.append_len
= 0;
4911 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4912 /* Used on systems which record the specified -L dirs
4913 and use them to search for dynamic linking.
4914 Relative directories always come from -B,
4915 and it is better not to use them for searching
4916 at run time. In particular, stage1 loses. */
4917 info
.omit_relative
= true;
4919 info
.omit_relative
= false;
4921 info
.separate_options
= false;
4923 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
4928 /* %efoo means report an error with `foo' as error message
4929 and don't execute any more commands for this file. */
4933 while (*p
!= 0 && *p
!= '\n')
4935 buf
= (char *) alloca (p
- q
+ 1);
4936 strncpy (buf
, q
, p
- q
);
4938 error ("%s", _(buf
));
4943 /* %nfoo means report a notice with `foo' on stderr. */
4947 while (*p
!= 0 && *p
!= '\n')
4949 buf
= (char *) alloca (p
- q
+ 1);
4950 strncpy (buf
, q
, p
- q
);
4952 inform (0, "%s", _(buf
));
4962 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4963 defined, and it is not a directory, and it is
4964 writable, use it. Otherwise, treat this like any
4965 other temporary file. */
4967 if ((!save_temps_flag
)
4968 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4969 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4971 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4972 strlen (HOST_BIT_BUCKET
));
4973 delete_this_arg
= 0;
4978 goto create_temp_file
;
4982 obstack_1grow (&obstack
, '-');
4983 delete_this_arg
= 0;
4986 /* consume suffix */
4987 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4989 if (p
[0] == '%' && p
[1] == 'O')
4994 goto create_temp_file
;
4998 /* consume suffix */
4999 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5001 if (p
[0] == '%' && p
[1] == 'O')
5006 goto create_temp_file
;
5012 struct temp_name
*t
;
5014 const char *suffix
= p
;
5015 char *saved_suffix
= NULL
;
5017 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5019 suffix_length
= p
- suffix
;
5020 if (p
[0] == '%' && p
[1] == 'O')
5023 /* We don't support extra suffix characters after %O. */
5024 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
5025 fatal_error ("spec %qs has invalid %<%%0%c%>", spec
, *p
);
5026 if (suffix_length
== 0)
5027 suffix
= TARGET_OBJECT_SUFFIX
;
5031 = XNEWVEC (char, suffix_length
5032 + strlen (TARGET_OBJECT_SUFFIX
) + 1);
5033 strncpy (saved_suffix
, suffix
, suffix_length
);
5034 strcpy (saved_suffix
+ suffix_length
,
5035 TARGET_OBJECT_SUFFIX
);
5037 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
5040 if (compare_debug
< 0)
5042 suffix
= concat (".gk", suffix
, NULL
);
5046 /* If -save-temps=obj and -o were specified, use that for the
5048 if (save_temps_length
)
5051 temp_filename_length
5052 = save_temps_length
+ suffix_length
+ 1;
5053 tmp
= (char *) alloca (temp_filename_length
);
5054 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
5055 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
5056 tmp
[save_temps_length
+ suffix_length
] = '\0';
5057 temp_filename
= save_string (tmp
, save_temps_length
5059 obstack_grow (&obstack
, temp_filename
,
5060 temp_filename_length
);
5062 delete_this_arg
= 0;
5066 /* If the gcc_input_filename has the same suffix specified
5067 for the %g, %u, or %U, and -save-temps is specified,
5068 we could end up using that file as an intermediate
5069 thus clobbering the user's source file (.e.g.,
5070 gcc -save-temps foo.s would clobber foo.s with the
5071 output of cpp0). So check for this condition and
5072 generate a temp file as the intermediate. */
5074 if (save_temps_flag
)
5077 temp_filename_length
= basename_length
+ suffix_length
+ 1;
5078 tmp
= (char *) alloca (temp_filename_length
);
5079 memcpy (tmp
, input_basename
, basename_length
);
5080 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
5081 tmp
[basename_length
+ suffix_length
] = '\0';
5082 temp_filename
= tmp
;
5084 if (filename_cmp (temp_filename
, gcc_input_filename
) != 0)
5086 #ifndef HOST_LACKS_INODE_NUMBERS
5087 struct stat st_temp
;
5089 /* Note, set_input() resets input_stat_set to 0. */
5090 if (input_stat_set
== 0)
5092 input_stat_set
= stat (gcc_input_filename
,
5094 if (input_stat_set
>= 0)
5098 /* If we have the stat for the gcc_input_filename
5099 and we can do the stat for the temp_filename
5100 then the they could still refer to the same
5101 file if st_dev/st_ino's are the same. */
5102 if (input_stat_set
!= 1
5103 || stat (temp_filename
, &st_temp
) < 0
5104 || input_stat
.st_dev
!= st_temp
.st_dev
5105 || input_stat
.st_ino
!= st_temp
.st_ino
)
5107 /* Just compare canonical pathnames. */
5108 char* input_realname
= lrealpath (gcc_input_filename
);
5109 char* temp_realname
= lrealpath (temp_filename
);
5110 bool files_differ
= filename_cmp (input_realname
, temp_realname
);
5111 free (input_realname
);
5112 free (temp_realname
);
5116 temp_filename
= save_string (temp_filename
,
5117 temp_filename_length
+ 1);
5118 obstack_grow (&obstack
, temp_filename
,
5119 temp_filename_length
);
5121 delete_this_arg
= 0;
5127 /* See if we already have an association of %g/%u/%U and
5129 for (t
= temp_names
; t
; t
= t
->next
)
5130 if (t
->length
== suffix_length
5131 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
5132 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
5135 /* Make a new association if needed. %u and %j
5137 if (t
== 0 || c
== 'u' || c
== 'j')
5141 t
= XNEW (struct temp_name
);
5142 t
->next
= temp_names
;
5145 t
->length
= suffix_length
;
5148 t
->suffix
= saved_suffix
;
5149 saved_suffix
= NULL
;
5152 t
->suffix
= save_string (suffix
, suffix_length
);
5153 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
5154 temp_filename
= make_temp_file (t
->suffix
);
5155 temp_filename_length
= strlen (temp_filename
);
5156 t
->filename
= temp_filename
;
5157 t
->filename_length
= temp_filename_length
;
5160 free (saved_suffix
);
5162 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
5163 delete_this_arg
= 1;
5171 if (at_file_supplied
)
5173 /* We are going to expand `%i' to `@FILE', where FILE
5174 is a newly-created temporary filename. The filenames
5175 that would usually be expanded in place of %o will be
5176 written to the temporary file. */
5181 for (i
= 0; i
< n_infiles
; i
++)
5182 if (compile_input_file_p (&infiles
[i
]))
5185 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5187 /* Copy the strings over. */
5188 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
5189 if (compile_input_file_p (&infiles
[i
]))
5191 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
5192 infiles
[i
].compiled
= true;
5197 create_at_file (argv
);
5200 for (i
= 0; (int) i
< n_infiles
; i
++)
5201 if (compile_input_file_p (&infiles
[i
]))
5203 store_arg (infiles
[i
].name
, 0, 0);
5204 infiles
[i
].compiled
= true;
5209 obstack_grow (&obstack
, gcc_input_filename
,
5210 input_filename_length
);
5217 struct spec_path_info info
;
5221 do_spec_1 ("-imultilib", 1, NULL
);
5222 /* Make this a separate argument. */
5223 do_spec_1 (" ", 0, NULL
);
5224 do_spec_1 (multilib_dir
, 1, NULL
);
5225 do_spec_1 (" ", 0, NULL
);
5230 do_spec_1 ("-imultiarch", 1, NULL
);
5231 /* Make this a separate argument. */
5232 do_spec_1 (" ", 0, NULL
);
5233 do_spec_1 (multiarch_dir
, 1, NULL
);
5234 do_spec_1 (" ", 0, NULL
);
5237 if (gcc_exec_prefix
)
5239 do_spec_1 ("-iprefix", 1, NULL
);
5240 /* Make this a separate argument. */
5241 do_spec_1 (" ", 0, NULL
);
5242 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5243 do_spec_1 (" ", 0, NULL
);
5246 if (target_system_root_changed
||
5247 (target_system_root
&& target_sysroot_hdrs_suffix
))
5249 do_spec_1 ("-isysroot", 1, NULL
);
5250 /* Make this a separate argument. */
5251 do_spec_1 (" ", 0, NULL
);
5252 do_spec_1 (target_system_root
, 1, NULL
);
5253 if (target_sysroot_hdrs_suffix
)
5254 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5255 do_spec_1 (" ", 0, NULL
);
5258 info
.option
= "-isystem";
5259 info
.append
= "include";
5260 info
.append_len
= strlen (info
.append
);
5261 info
.omit_relative
= false;
5262 info
.separate_options
= true;
5264 for_each_path (&include_prefixes
, false, info
.append_len
,
5267 info
.append
= "include-fixed";
5268 if (*sysroot_hdrs_suffix_spec
)
5269 info
.append
= concat (info
.append
, dir_separator_str
,
5270 multilib_dir
, NULL
);
5271 info
.append_len
= strlen (info
.append
);
5272 for_each_path (&include_prefixes
, false, info
.append_len
,
5279 int max
= n_infiles
;
5280 max
+= lang_specific_extra_outfiles
;
5282 if (HAVE_GNU_LD
&& at_file_supplied
)
5284 /* We are going to expand `%o' to `@FILE', where FILE
5285 is a newly-created temporary filename. The filenames
5286 that would usually be expanded in place of %o will be
5287 written to the temporary file. */
5292 /* Convert OUTFILES into a form suitable for writeargv. */
5294 /* Determine how many are non-NULL. */
5295 for (n_files
= 0, i
= 0; i
< max
; i
++)
5296 n_files
+= outfiles
[i
] != NULL
;
5298 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5300 /* Copy the strings over. */
5301 for (i
= 0, j
= 0; i
< max
; i
++)
5304 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5309 create_at_file (argv
);
5312 for (i
= 0; i
< max
; i
++)
5314 store_arg (outfiles
[i
], 0, 0);
5319 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5324 this_is_library_file
= 1;
5328 this_is_linker_script
= 1;
5332 outfiles
[input_file_number
] = NULL
;
5336 this_is_output_file
= 1;
5341 unsigned int cur_index
= argbuf
.length ();
5342 /* Handle the {...} following the %W. */
5344 fatal_error ("spec %qs has invalid %<%%W%c%>", spec
, *p
);
5345 p
= handle_braces (p
+ 1);
5349 /* If any args were output, mark the last one for deletion
5351 if (argbuf
.length () != cur_index
)
5352 record_temp_file (argbuf
.last (), 0, 1);
5356 /* %x{OPTION} records OPTION for %X to output. */
5364 /* Skip past the option value and make a copy. */
5366 fatal_error ("spec %qs has invalid %<%%x%c%>", spec
, *p
);
5369 string
= save_string (p1
+ 1, p
- p1
- 2);
5371 /* See if we already recorded this option. */
5372 FOR_EACH_VEC_ELT (linker_options
, ix
, opt
)
5373 if (! strcmp (string
, opt
))
5379 /* This option is new; add it. */
5380 add_linker_option (string
, strlen (string
));
5385 /* Dump out the options accumulated previously using %x. */
5387 do_specs_vec (linker_options
);
5390 /* Dump out the options accumulated previously using -Wa,. */
5392 do_specs_vec (assembler_options
);
5395 /* Dump out the options accumulated previously using -Wp,. */
5397 do_specs_vec (preprocessor_options
);
5400 /* Here are digits and numbers that just process
5401 a certain constant string as a spec. */
5404 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5410 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5416 value
= do_spec_1 (asm_spec
, 0, NULL
);
5422 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5429 const char *const spec
5430 = (input_file_compiler
->cpp_spec
5431 ? input_file_compiler
->cpp_spec
5433 value
= do_spec_1 (spec
, 0, NULL
);
5440 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5446 value
= do_spec_1 (link_spec
, 0, NULL
);
5452 value
= do_spec_1 (lib_spec
, 0, NULL
);
5458 if (multilib_os_dir
== NULL
)
5459 obstack_1grow (&obstack
, '.');
5461 obstack_grow (&obstack
, multilib_os_dir
,
5462 strlen (multilib_os_dir
));
5466 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5472 /* We assume there is a directory
5473 separator at the end of this string. */
5474 if (target_system_root
)
5476 obstack_grow (&obstack
, target_system_root
,
5477 strlen (target_system_root
));
5478 if (target_sysroot_suffix
)
5479 obstack_grow (&obstack
, target_sysroot_suffix
,
5480 strlen (target_sysroot_suffix
));
5485 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5490 /* Here we define characters other than letters and digits. */
5493 p
= handle_braces (p
);
5499 p
= handle_spec_function (p
, NULL
);
5505 obstack_1grow (&obstack
, '%');
5512 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5514 suffix_subst
= save_string (p
- 1, len
+ 1);
5519 /* Henceforth ignore the option(s) matching the pattern
5525 int have_wildcard
= 0;
5530 switch_option
= SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
;
5532 switch_option
= SWITCH_IGNORE
;
5534 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5537 if (p
[len
-1] == '*')
5540 for (i
= 0; i
< n_switches
; i
++)
5541 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5542 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5544 switches
[i
].live_cond
|= switch_option
;
5545 /* User switch be validated from validate_all_switches.
5546 when the definition is seen from the spec file.
5547 If not defined anywhere, will be rejected. */
5548 if (switches
[i
].known
)
5549 switches
[i
].validated
= true;
5557 if (soft_matched_part
)
5559 if (soft_matched_part
[0])
5560 do_spec_1 (soft_matched_part
, 1, NULL
);
5561 /* Only insert a space after the substitution if it is at the
5562 end of the current sequence. So if:
5564 "%{foo=*:bar%*}%{foo=*:one%*two}"
5566 matches -foo=hello then it will produce:
5568 barhello onehellotwo
5570 if (*p
== 0 || *p
== '}')
5571 do_spec_1 (" ", 0, NULL
);
5574 /* Catch the case where a spec string contains something like
5575 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5576 hand side of the :. */
5577 error ("spec failure: %<%%*%> has not been initialized by pattern match");
5580 /* Process a string found as the value of a spec given by name.
5581 This feature allows individual machine descriptions
5582 to add and use their own specs. */
5585 const char *name
= p
;
5586 struct spec_list
*sl
;
5589 /* The string after the S/P is the name of a spec that is to be
5591 while (*p
&& *p
!= ')')
5594 /* See if it's in the list. */
5595 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5596 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5598 name
= *(sl
->ptr_spec
);
5600 fnotice (stderr
, "Processing spec (%s), which is '%s'\n",
5608 value
= do_spec_1 (name
, 0, NULL
);
5613 /* Discard the closing paren. */
5620 error ("spec failure: unrecognized spec option %qc", c
);
5626 /* Backslash: treat next character as ordinary. */
5631 /* Ordinary character: put it into the current argument. */
5632 obstack_1grow (&obstack
, c
);
5636 /* End of string. If we are processing a spec function, we need to
5637 end any pending argument. */
5638 if (processing_spec_function
)
5644 /* Look up a spec function. */
5646 static const struct spec_function
*
5647 lookup_spec_function (const char *name
)
5649 const struct spec_function
*sf
;
5651 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5652 if (strcmp (sf
->name
, name
) == 0)
5658 /* Evaluate a spec function. */
5661 eval_spec_function (const char *func
, const char *args
)
5663 const struct spec_function
*sf
;
5664 const char *funcval
;
5666 /* Saved spec processing context. */
5667 vec
<const_char_p
> save_argbuf
;
5670 int save_delete_this_arg
;
5671 int save_this_is_output_file
;
5672 int save_this_is_library_file
;
5673 int save_input_from_pipe
;
5674 int save_this_is_linker_script
;
5675 const char *save_suffix_subst
;
5677 int save_growing_size
;
5678 void *save_growing_value
= NULL
;
5680 sf
= lookup_spec_function (func
);
5682 fatal_error ("unknown spec function %qs", func
);
5684 /* Push the spec processing context. */
5685 save_argbuf
= argbuf
;
5687 save_arg_going
= arg_going
;
5688 save_delete_this_arg
= delete_this_arg
;
5689 save_this_is_output_file
= this_is_output_file
;
5690 save_this_is_library_file
= this_is_library_file
;
5691 save_this_is_linker_script
= this_is_linker_script
;
5692 save_input_from_pipe
= input_from_pipe
;
5693 save_suffix_subst
= suffix_subst
;
5695 /* If we have some object growing now, finalize it so the args and function
5696 eval proceed from a cleared context. This is needed to prevent the first
5697 constructed arg from mistakenly including the growing value. We'll push
5698 this value back on the obstack once the function evaluation is done, to
5699 restore a consistent processing context for our caller. This is fine as
5700 the address of growing objects isn't guaranteed to remain stable until
5701 they are finalized, and we expect this situation to be rare enough for
5702 the extra copy not to be an issue. */
5703 save_growing_size
= obstack_object_size (&obstack
);
5704 if (save_growing_size
> 0)
5705 save_growing_value
= obstack_finish (&obstack
);
5707 /* Create a new spec processing context, and build the function
5711 if (do_spec_2 (args
) < 0)
5712 fatal_error ("error in args to spec function %qs", func
);
5714 /* argbuf_index is an index for the next argument to be inserted, and
5715 so contains the count of the args already inserted. */
5717 funcval
= (*sf
->func
) (argbuf
.length (),
5720 /* Pop the spec processing context. */
5722 argbuf
= save_argbuf
;
5724 arg_going
= save_arg_going
;
5725 delete_this_arg
= save_delete_this_arg
;
5726 this_is_output_file
= save_this_is_output_file
;
5727 this_is_library_file
= save_this_is_library_file
;
5728 this_is_linker_script
= save_this_is_linker_script
;
5729 input_from_pipe
= save_input_from_pipe
;
5730 suffix_subst
= save_suffix_subst
;
5732 if (save_growing_size
> 0)
5733 obstack_grow (&obstack
, save_growing_value
, save_growing_size
);
5738 /* Handle a spec function call of the form:
5742 ARGS is processed as a spec in a separate context and split into an
5743 argument vector in the normal fashion. The function returns a string
5744 containing a spec which we then process in the caller's context, or
5745 NULL if no processing is required.
5747 If RETVAL_NONNULL is not NULL, then store a bool whether function
5748 returned non-NULL. */
5751 handle_spec_function (const char *p
, bool *retval_nonnull
)
5754 const char *endp
, *funcval
;
5757 processing_spec_function
++;
5759 /* Get the function name. */
5760 for (endp
= p
; *endp
!= '\0'; endp
++)
5762 if (*endp
== '(') /* ) */
5764 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5765 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5766 fatal_error ("malformed spec function name");
5768 if (*endp
!= '(') /* ) */
5769 fatal_error ("no arguments for spec function");
5770 func
= save_string (p
, endp
- p
);
5773 /* Get the arguments. */
5774 for (count
= 0; *endp
!= '\0'; endp
++)
5783 else if (*endp
== '(') /* ) */
5788 fatal_error ("malformed spec function arguments");
5789 args
= save_string (p
, endp
- p
);
5792 /* p now points to just past the end of the spec function expression. */
5794 funcval
= eval_spec_function (func
, args
);
5795 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5798 *retval_nonnull
= funcval
!= NULL
;
5803 processing_spec_function
--;
5808 /* Inline subroutine of handle_braces. Returns true if the current
5809 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5811 input_suffix_matches (const char *atom
, const char *end_atom
)
5813 return (input_suffix
5814 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5815 && input_suffix
[end_atom
- atom
] == '\0');
5818 /* Subroutine of handle_braces. Returns true if the current
5819 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
5821 input_spec_matches (const char *atom
, const char *end_atom
)
5823 return (input_file_compiler
5824 && input_file_compiler
->suffix
5825 && input_file_compiler
->suffix
[0] != '\0'
5826 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
5828 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
5831 /* Subroutine of handle_braces. Returns true if a switch
5832 matching the atom bracketed by ATOM and END_ATOM appeared on the
5835 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5838 int len
= end_atom
- atom
;
5839 int plen
= starred
? len
: -1;
5841 for (i
= 0; i
< n_switches
; i
++)
5842 if (!strncmp (switches
[i
].part1
, atom
, len
)
5843 && (starred
|| switches
[i
].part1
[len
] == '\0')
5844 && check_live_switch (i
, plen
))
5847 /* Check if a switch with separated form matching the atom.
5848 We check -D and -U switches. */
5849 else if (switches
[i
].args
!= 0)
5851 if ((*switches
[i
].part1
== 'D' || *switches
[i
].part1
== 'U')
5852 && *switches
[i
].part1
== atom
[0])
5854 if (!strncmp (switches
[i
].args
[0], &atom
[1], len
- 1)
5855 && (starred
|| (switches
[i
].part1
[1] == '\0'
5856 && switches
[i
].args
[0][len
- 1] == '\0'))
5857 && check_live_switch (i
, (starred
? 1 : -1)))
5865 /* Inline subroutine of handle_braces. Mark all of the switches which
5866 match ATOM (extends to END_ATOM; STARRED indicates whether there
5867 was a star after the atom) for later processing. */
5869 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5872 int len
= end_atom
- atom
;
5873 int plen
= starred
? len
: -1;
5875 for (i
= 0; i
< n_switches
; i
++)
5876 if (!strncmp (switches
[i
].part1
, atom
, len
)
5877 && (starred
|| switches
[i
].part1
[len
] == '\0')
5878 && check_live_switch (i
, plen
))
5879 switches
[i
].ordering
= 1;
5882 /* Inline subroutine of handle_braces. Process all the currently
5883 marked switches through give_switch, and clear the marks. */
5885 process_marked_switches (void)
5889 for (i
= 0; i
< n_switches
; i
++)
5890 if (switches
[i
].ordering
== 1)
5892 switches
[i
].ordering
= 0;
5897 /* Handle a %{ ... } construct. P points just inside the leading {.
5898 Returns a pointer one past the end of the brace block, or 0
5899 if we call do_spec_1 and that returns -1. */
5902 handle_braces (const char *p
)
5904 const char *atom
, *end_atom
;
5905 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5906 const char *orig
= p
;
5914 bool a_must_be_last
= false;
5915 bool ordered_set
= false;
5916 bool disjunct_set
= false;
5917 bool disj_matched
= false;
5918 bool disj_starred
= true;
5919 bool n_way_choice
= false;
5920 bool n_way_matched
= false;
5922 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5929 /* Scan one "atom" (S in the description above of %{}, possibly
5930 with '!', '.', '@', ',', or '*' modifiers). */
5932 a_is_suffix
= false;
5933 a_is_starred
= false;
5934 a_is_negated
= false;
5935 a_is_spectype
= false;
5939 p
++, a_is_negated
= true;
5942 if (*p
== '%' && p
[1] == ':')
5946 p
= handle_spec_function (p
+ 2, &a_matched
);
5951 p
++, a_is_suffix
= true;
5953 p
++, a_is_spectype
= true;
5956 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
5957 || *p
== ',' || *p
== '.' || *p
== '@')
5962 p
++, a_is_starred
= 1;
5969 /* Substitute the switch(es) indicated by the current atom. */
5971 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5972 || a_is_spectype
|| atom
== end_atom
)
5975 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5978 process_marked_switches ();
5982 /* Substitute some text if the current atom appears as a switch
5984 disjunct_set
= true;
5988 if (atom
&& atom
== end_atom
)
5990 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5991 || a_is_negated
|| a_is_suffix
|| a_is_spectype
5995 /* An empty term may appear as the last choice of an
5996 N-way choice set; it means "otherwise". */
5997 a_must_be_last
= true;
5998 disj_matched
= !n_way_matched
;
5999 disj_starred
= false;
6003 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
6007 disj_starred
= false;
6009 /* Don't bother testing this atom if we already have a
6011 if (!disj_matched
&& !n_way_matched
)
6014 /* a_matched is already set by handle_spec_function. */;
6015 else if (a_is_suffix
)
6016 a_matched
= input_suffix_matches (atom
, end_atom
);
6017 else if (a_is_spectype
)
6018 a_matched
= input_spec_matches (atom
, end_atom
);
6020 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
6022 if (a_matched
!= a_is_negated
)
6024 disj_matched
= true;
6026 d_end_atom
= end_atom
;
6033 /* Found the body, that is, the text to substitute if the
6034 current disjunction matches. */
6035 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
6036 disj_matched
&& !n_way_matched
);
6040 /* If we have an N-way choice, reset state for the next
6044 n_way_choice
= true;
6045 n_way_matched
|= disj_matched
;
6046 disj_matched
= false;
6047 disj_starred
= true;
6048 d_atom
= d_end_atom
= NULL
;
6057 while (*p
++ != '}');
6062 fatal_error ("braced spec %qs is invalid at %qc", orig
, *p
);
6067 /* Subroutine of handle_braces. Scan and process a brace substitution body
6068 (X in the description of %{} syntax). P points one past the colon;
6069 ATOM and END_ATOM bracket the first atom which was found to be true
6070 (present) in the current disjunction; STARRED indicates whether all
6071 the atoms in the current disjunction were starred (for syntax validation);
6072 MATCHED indicates whether the disjunction matched or not, and therefore
6073 whether or not the body is to be processed through do_spec_1 or just
6074 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6078 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
6079 int starred
, int matched
)
6081 const char *body
, *end_body
;
6082 unsigned int nesting_level
;
6083 bool have_subst
= false;
6085 /* Locate the closing } or ;, honoring nested braces.
6086 Trim trailing whitespace. */
6095 if (!--nesting_level
)
6098 else if (*p
== ';' && nesting_level
== 1)
6100 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
6102 else if (*p
== '\0')
6108 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
6111 if (have_subst
&& !starred
)
6116 /* Copy the substitution body to permanent storage and execute it.
6117 If have_subst is false, this is a simple matter of running the
6118 body through do_spec_1... */
6119 char *string
= save_string (body
, end_body
- body
);
6122 if (do_spec_1 (string
, 0, NULL
) < 0)
6127 /* ... but if have_subst is true, we have to process the
6128 body once for each matching switch, with %* set to the
6129 variant part of the switch. */
6130 unsigned int hard_match_len
= end_atom
- atom
;
6133 for (i
= 0; i
< n_switches
; i
++)
6134 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
6135 && check_live_switch (i
, hard_match_len
))
6137 if (do_spec_1 (string
, 0,
6138 &switches
[i
].part1
[hard_match_len
]) < 0)
6140 /* Pass any arguments this switch has. */
6142 suffix_subst
= NULL
;
6150 fatal_error ("braced spec body %qs is invalid", body
);
6153 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6154 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6155 spec, or -1 if either exact match or %* is used.
6157 A -O switch is obsoleted by a later -O switch. A -f, -g, -m, or -W switch
6158 whose value does not begin with "no-" is obsoleted by the same value
6159 with the "no-", similarly for a switch with the "no-" prefix. */
6162 check_live_switch (int switchnum
, int prefix_length
)
6164 const char *name
= switches
[switchnum
].part1
;
6167 /* If we already processed this switch and determined if it was
6168 live or not, return our past determination. */
6169 if (switches
[switchnum
].live_cond
!= 0)
6170 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
6171 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
6172 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
6175 /* In the common case of {<at-most-one-letter>*}, a negating
6176 switch would always match, so ignore that case. We will just
6177 send the conflicting switches to the compiler phase. */
6178 if (prefix_length
>= 0 && prefix_length
<= 1)
6181 /* Now search for duplicate in a manner that depends on the name. */
6185 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6186 if (switches
[i
].part1
[0] == 'O')
6188 switches
[switchnum
].validated
= true;
6189 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6194 case 'W': case 'f': case 'm': case 'g':
6195 if (! strncmp (name
+ 1, "no-", 3))
6197 /* We have Xno-YYY, search for XYYY. */
6198 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6199 if (switches
[i
].part1
[0] == name
[0]
6200 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6202 /* --specs are validated with the validate_switches mechanism. */
6203 if (switches
[switchnum
].known
)
6204 switches
[switchnum
].validated
= true;
6205 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6211 /* We have XYYY, search for Xno-YYY. */
6212 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6213 if (switches
[i
].part1
[0] == name
[0]
6214 && switches
[i
].part1
[1] == 'n'
6215 && switches
[i
].part1
[2] == 'o'
6216 && switches
[i
].part1
[3] == '-'
6217 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6219 /* --specs are validated with the validate_switches mechanism. */
6220 if (switches
[switchnum
].known
)
6221 switches
[switchnum
].validated
= true;
6222 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6229 /* Otherwise the switch is live. */
6230 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6234 /* Pass a switch to the current accumulating command
6235 in the same form that we received it.
6236 SWITCHNUM identifies the switch; it is an index into
6237 the vector of switches gcc received, which is `switches'.
6238 This cannot fail since it never finishes a command line.
6240 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6243 give_switch (int switchnum
, int omit_first_word
)
6245 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6248 if (!omit_first_word
)
6250 do_spec_1 ("-", 0, NULL
);
6251 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6254 if (switches
[switchnum
].args
!= 0)
6257 for (p
= switches
[switchnum
].args
; *p
; p
++)
6259 const char *arg
= *p
;
6261 do_spec_1 (" ", 0, NULL
);
6264 unsigned length
= strlen (arg
);
6267 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6268 if (arg
[length
] == '.')
6270 (CONST_CAST (char *, arg
))[length
] = 0;
6274 do_spec_1 (arg
, 1, NULL
);
6276 (CONST_CAST (char *, arg
))[length
] = '.';
6277 do_spec_1 (suffix_subst
, 1, NULL
);
6280 do_spec_1 (arg
, 1, NULL
);
6284 do_spec_1 (" ", 0, NULL
);
6285 switches
[switchnum
].validated
= true;
6288 /* Print GCC configuration (e.g. version, thread model, target,
6289 configuration_arguments) to a given FILE. */
6292 print_configuration (FILE *file
)
6297 fnotice (file
, "Target: %s\n", spec_machine
);
6298 fnotice (file
, "Configured with: %s\n", configuration_arguments
);
6300 #ifdef THREAD_MODEL_SPEC
6301 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6302 but there's no point in doing all this processing just to get
6303 thread_model back. */
6304 obstack_init (&obstack
);
6305 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6306 obstack_1grow (&obstack
, '\0');
6307 thrmod
= XOBFINISH (&obstack
, const char *);
6309 thrmod
= thread_model
;
6312 fnotice (file
, "Thread model: %s\n", thrmod
);
6314 /* compiler_version is truncated at the first space when initialized
6315 from version string, so truncate version_string at the first space
6316 before comparing. */
6317 for (n
= 0; version_string
[n
]; n
++)
6318 if (version_string
[n
] == ' ')
6321 if (! strncmp (version_string
, compiler_version
, n
)
6322 && compiler_version
[n
] == 0)
6323 fnotice (file
, "gcc version %s %s\n\n", version_string
,
6326 fnotice (file
, "gcc driver version %s %sexecuting gcc version %s\n\n",
6327 version_string
, pkgversion_string
, compiler_version
);
6331 #define RETRY_ICE_ATTEMPTS 3
6333 /* Returns true if FILE1 and FILE2 contain equivalent data, 0 otherwise. */
6336 files_equal_p (char *file1
, char *file2
)
6338 struct stat st1
, st2
;
6341 const int bufsize
= 8192;
6342 char *buf
= XNEWVEC (char, bufsize
);
6344 fd1
= open (file1
, O_RDONLY
);
6345 fd2
= open (file2
, O_RDONLY
);
6347 if (fd1
< 0 || fd2
< 0)
6350 if (fstat (fd1
, &st1
) < 0 || fstat (fd2
, &st2
) < 0)
6353 if (st1
.st_size
!= st2
.st_size
)
6356 for (n
= st1
.st_size
; n
; n
-= len
)
6359 if ((int) len
> bufsize
/ 2)
6362 if (read (fd1
, buf
, len
) != (int) len
6363 || read (fd2
, buf
+ bufsize
/ 2, len
) != (int) len
)
6368 if (memcmp (buf
, buf
+ bufsize
/ 2, len
) != 0)
6385 /* Check that compiler's output doesn't differ across runs.
6386 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are arrays of files, containing
6387 stdout and stderr for each compiler run. Return true if all of
6388 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are equivalent. */
6391 check_repro (char **temp_stdout_files
, char **temp_stderr_files
)
6394 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
- 2; ++i
)
6396 if (!files_equal_p (temp_stdout_files
[i
], temp_stdout_files
[i
+ 1])
6397 || !files_equal_p (temp_stderr_files
[i
], temp_stderr_files
[i
+ 1]))
6399 fnotice (stderr
, "The bug is not reproducible, so it is"
6400 " likely a hardware or OS problem.\n");
6404 return i
== RETRY_ICE_ATTEMPTS
- 2;
6407 enum attempt_status
{
6408 ATTEMPT_STATUS_FAIL_TO_RUN
,
6409 ATTEMPT_STATUS_SUCCESS
,
6414 /* Run compiler with arguments NEW_ARGV to reproduce the ICE, storing stdout
6415 to OUT_TEMP and stderr to ERR_TEMP. If APPEND is TRUE, append to OUT_TEMP
6416 and ERR_TEMP instead of truncating. If EMIT_SYSTEM_INFO is TRUE, also write
6417 GCC configuration into to ERR_TEMP. Return ATTEMPT_STATUS_FAIL_TO_RUN if
6418 compiler failed to run, ATTEMPT_STATUS_ICE if compiled ICE-ed and
6419 ATTEMPT_STATUS_SUCCESS otherwise. */
6421 static enum attempt_status
6422 run_attempt (const char **new_argv
, const char *out_temp
,
6423 const char *err_temp
, int emit_system_info
, int append
)
6426 if (emit_system_info
)
6428 FILE *file_out
= fopen (err_temp
, "a");
6429 print_configuration (file_out
);
6435 struct pex_obj
*pex
;
6437 int pex_flags
= PEX_USE_PIPES
| PEX_LAST
;
6438 enum attempt_status status
= ATTEMPT_STATUS_FAIL_TO_RUN
;
6441 pex_flags
|= PEX_STDOUT_APPEND
| PEX_STDERR_APPEND
;
6443 pex
= pex_init (PEX_USE_PIPES
, new_argv
[0], NULL
);
6445 fatal_error ("pex_init failed: %m");
6447 errmsg
= pex_run (pex
, pex_flags
, new_argv
[0],
6448 CONST_CAST2 (char *const *, const char **, &new_argv
[1]), out_temp
,
6453 fatal_error (errmsg
);
6457 pfatal_with_name (errmsg
);
6461 if (!pex_get_status (pex
, 1, &exit_status
))
6464 switch (WEXITSTATUS (exit_status
))
6467 status
= ATTEMPT_STATUS_ICE
;
6470 case SUCCESS_EXIT_CODE
:
6471 status
= ATTEMPT_STATUS_SUCCESS
;
6483 /* This routine adds preprocessed source code into the given ERR_FILE.
6484 To do this, it adds "-E" to NEW_ARGV and execute RUN_ATTEMPT routine to
6485 add information in report file. RUN_ATTEMPT should return
6486 ATTEMPT_STATUS_SUCCESS, in other case we cannot generate the report. */
6489 do_report_bug (const char **new_argv
, const int nargs
,
6490 char **out_file
, char **err_file
)
6493 int fd
= open (*out_file
, O_RDWR
| O_APPEND
);
6496 write (fd
, "\n//", 3);
6497 for (i
= 0; i
< nargs
; i
++)
6500 write (fd
, new_argv
[i
], strlen (new_argv
[i
]));
6502 write (fd
, "\n\n", 2);
6504 new_argv
[nargs
] = "-E";
6505 new_argv
[nargs
+ 1] = NULL
;
6507 status
= run_attempt (new_argv
, *out_file
, *err_file
, 0, 1);
6509 if (status
== ATTEMPT_STATUS_SUCCESS
)
6511 fnotice (stderr
, "Preprocessed source stored into %s file,"
6512 " please attach this to your bugreport.\n", *out_file
);
6513 /* Make sure it is not deleted. */
6519 /* Append string STR to file FILE. */
6522 append_text (char *file
, const char *str
)
6524 int fd
= open (file
, O_RDWR
| O_APPEND
);
6528 write (fd
, str
, strlen (str
));
6532 /* Try to reproduce ICE. If bug is reproducible, generate report .err file
6533 containing GCC configuration, backtrace, compiler's command line options
6534 and preprocessed source code. */
6537 try_generate_repro (const char **argv
)
6539 int i
, nargs
, out_arg
= -1, quiet
= 0, attempt
;
6540 const char **new_argv
;
6541 char *temp_files
[RETRY_ICE_ATTEMPTS
* 2];
6542 char **temp_stdout_files
= &temp_files
[0];
6543 char **temp_stderr_files
= &temp_files
[RETRY_ICE_ATTEMPTS
];
6545 if (gcc_input_filename
== NULL
|| ! strcmp (gcc_input_filename
, "-"))
6548 for (nargs
= 0; argv
[nargs
] != NULL
; ++nargs
)
6549 /* Only retry compiler ICEs, not preprocessor ones. */
6550 if (! strcmp (argv
[nargs
], "-E"))
6552 else if (argv
[nargs
][0] == '-' && argv
[nargs
][1] == 'o')
6559 /* If the compiler is going to output any time information,
6560 it might varry between invocations. */
6561 else if (! strcmp (argv
[nargs
], "-quiet"))
6563 else if (! strcmp (argv
[nargs
], "-ftime-report"))
6566 if (out_arg
== -1 || !quiet
)
6569 memset (temp_files
, '\0', sizeof (temp_files
));
6570 new_argv
= XALLOCAVEC (const char *, nargs
+ 4);
6571 memcpy (new_argv
, argv
, (nargs
+ 1) * sizeof (const char *));
6572 new_argv
[nargs
++] = "-frandom-seed=0";
6573 new_argv
[nargs
++] = "-fdump-noaddr";
6574 new_argv
[nargs
] = NULL
;
6575 if (new_argv
[out_arg
][2] == '\0')
6576 new_argv
[out_arg
+ 1] = "-";
6578 new_argv
[out_arg
] = "-o-";
6581 for (attempt
= 0; attempt
< RETRY_ICE_ATTEMPTS
; ++attempt
)
6583 int emit_system_info
= 0;
6585 temp_stdout_files
[attempt
] = make_temp_file (".out");
6586 temp_stderr_files
[attempt
] = make_temp_file (".err");
6588 if (attempt
== RETRY_ICE_ATTEMPTS
- 1)
6591 emit_system_info
= 1;
6594 if (emit_system_info
)
6595 append_text (temp_stderr_files
[attempt
], "/*\n");
6597 status
= run_attempt (new_argv
, temp_stdout_files
[attempt
],
6598 temp_stderr_files
[attempt
], emit_system_info
,
6601 if (emit_system_info
)
6602 append_text (temp_stderr_files
[attempt
], "*/\n");
6604 if (status
!= ATTEMPT_STATUS_ICE
)
6606 fnotice (stderr
, "The bug is not reproducible, so it is"
6607 " likely a hardware or OS problem.\n");
6612 if (!check_repro (temp_stdout_files
, temp_stderr_files
))
6615 /* In final attempt we append compiler options and preprocesssed code to last
6616 generated .err file with configuration and backtrace. */
6617 do_report_bug (new_argv
, nargs
,
6618 &temp_stderr_files
[RETRY_ICE_ATTEMPTS
- 1],
6619 &temp_stdout_files
[RETRY_ICE_ATTEMPTS
- 1]);
6622 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
* 2; i
++)
6625 unlink (temp_stdout_files
[i
]);
6626 free (temp_stdout_files
[i
]);
6630 /* Search for a file named NAME trying various prefixes including the
6631 user's -B prefix and some standard ones.
6632 Return the absolute file name found. If nothing is found, return NAME. */
6635 find_file (const char *name
)
6637 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
6638 return newname
? newname
: name
;
6641 /* Determine whether a directory exists. If LINKER, return 0 for
6642 certain fixed names not needed by the linker. */
6645 is_directory (const char *path1
, bool linker
)
6652 /* Ensure the string ends with "/.". The resulting path will be a
6653 directory even if the given path is a symbolic link. */
6654 len1
= strlen (path1
);
6655 path
= (char *) alloca (3 + len1
);
6656 memcpy (path
, path1
, len1
);
6658 if (!IS_DIR_SEPARATOR (cp
[-1]))
6659 *cp
++ = DIR_SEPARATOR
;
6663 /* Exclude directories that the linker is known to search. */
6665 && IS_DIR_SEPARATOR (path
[0])
6667 && filename_ncmp (path
+ 1, "lib", 3) == 0)
6669 && filename_ncmp (path
+ 1, "usr", 3) == 0
6670 && IS_DIR_SEPARATOR (path
[4])
6671 && filename_ncmp (path
+ 5, "lib", 3) == 0)))
6674 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6677 /* Set up the various global variables to indicate that we're processing
6678 the input file named FILENAME. */
6681 set_input (const char *filename
)
6685 gcc_input_filename
= filename
;
6686 input_filename_length
= strlen (gcc_input_filename
);
6687 input_basename
= lbasename (gcc_input_filename
);
6689 /* Find a suffix starting with the last period,
6690 and set basename_length to exclude that suffix. */
6691 basename_length
= strlen (input_basename
);
6692 suffixed_basename_length
= basename_length
;
6693 p
= input_basename
+ basename_length
;
6694 while (p
!= input_basename
&& *p
!= '.')
6696 if (*p
== '.' && p
!= input_basename
)
6698 basename_length
= p
- input_basename
;
6699 input_suffix
= p
+ 1;
6704 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6705 we will need to do a stat on the gcc_input_filename. The
6706 INPUT_STAT_SET signals that the stat is needed. */
6710 /* On fatal signals, delete all the temporary files. */
6713 fatal_signal (int signum
)
6715 signal (signum
, SIG_DFL
);
6716 delete_failure_queue ();
6717 delete_temp_files ();
6718 /* Get the same signal again, this time not handled,
6719 so its normal effect occurs. */
6720 kill (getpid (), signum
);
6723 /* Compare the contents of the two files named CMPFILE[0] and
6724 CMPFILE[1]. Return zero if they're identical, nonzero
6728 compare_files (char *cmpfile
[])
6731 FILE *temp
[2] = { NULL
, NULL
};
6737 void *map
[2] = { NULL
, NULL
};
6739 for (i
= 0; i
< 2; i
++)
6743 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
6745 error ("%s: could not determine length of compare-debug file %s",
6746 gcc_input_filename
, cmpfile
[i
]);
6751 length
[i
] = st
.st_size
;
6754 if (!ret
&& length
[0] != length
[1])
6756 error ("%s: -fcompare-debug failure (length)", gcc_input_filename
);
6761 for (i
= 0; i
< 2; i
++)
6763 int fd
= open (cmpfile
[i
], O_RDONLY
);
6766 error ("%s: could not open compare-debug file %s",
6767 gcc_input_filename
, cmpfile
[i
]);
6772 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
6775 if (map
[i
] == (void *) MAP_FAILED
)
6784 if (memcmp (map
[0], map
[1], length
[0]) != 0)
6786 error ("%s: -fcompare-debug failure", gcc_input_filename
);
6791 for (i
= 0; i
< 2; i
++)
6793 munmap ((caddr_t
) map
[i
], length
[i
]);
6802 for (i
= 0; i
< 2; i
++)
6804 temp
[i
] = fopen (cmpfile
[i
], "r");
6807 error ("%s: could not open compare-debug file %s",
6808 gcc_input_filename
, cmpfile
[i
]);
6814 if (!ret
&& temp
[0] && temp
[1])
6818 c0
= fgetc (temp
[0]);
6819 c1
= fgetc (temp
[1]);
6823 error ("%s: -fcompare-debug failure",
6824 gcc_input_filename
);
6833 for (i
= 1; i
>= 0; i
--)
6842 /* The top-level "main" within the driver would be ~1000 lines long.
6843 This class breaks it up into smaller functions and contains some
6844 state shared by them. */
6849 int main (int argc
, char **argv
);
6852 void set_progname (const char *argv0
) const;
6853 void expand_at_files (int *argc
, char ***argv
) const;
6854 void decode_argv (int argc
, const char **argv
);
6855 void global_initializations ();
6856 void build_multilib_strings () const;
6857 void set_up_specs () const;
6858 void putenv_COLLECT_GCC (const char *argv0
) const;
6859 void maybe_putenv_COLLECT_LTO_WRAPPER () const;
6860 void maybe_putenv_OFFLOAD_TARGETS () const;
6861 void handle_unrecognized_options () const;
6862 int maybe_print_and_exit () const;
6863 bool prepare_infiles ();
6864 void do_spec_on_infiles () const;
6865 void maybe_run_linker (const char *argv0
) const;
6866 void final_actions () const;
6867 int get_exit_code () const;
6870 char *explicit_link_files
;
6871 struct cl_decoded_option
*decoded_options
;
6872 unsigned int decoded_options_count
;
6875 /* Implement the top-level "main" within the driver in terms of
6878 extern int main (int, char **);
6881 main (int argc
, char **argv
)
6885 return d
.main (argc
, argv
);
6888 /* driver::main is implemented as a series of driver:: method calls. */
6891 driver::main (int argc
, char **argv
)
6895 set_progname (argv
[0]);
6896 expand_at_files (&argc
, &argv
);
6897 decode_argv (argc
, const_cast <const char **> (argv
));
6898 global_initializations ();
6899 build_multilib_strings ();
6901 putenv_COLLECT_GCC (argv
[0]);
6902 maybe_putenv_COLLECT_LTO_WRAPPER ();
6903 maybe_putenv_OFFLOAD_TARGETS ();
6904 handle_unrecognized_options ();
6906 if (!maybe_print_and_exit ())
6909 early_exit
= prepare_infiles ();
6911 return get_exit_code ();
6913 do_spec_on_infiles ();
6914 maybe_run_linker (argv
[0]);
6916 return get_exit_code ();
6919 /* Locate the final component of argv[0] after any leading path, and set
6920 the program name accordingly. */
6923 driver::set_progname (const char *argv0
) const
6925 const char *p
= argv0
+ strlen (argv0
);
6926 while (p
!= argv0
&& !IS_DIR_SEPARATOR (p
[-1]))
6930 xmalloc_set_program_name (progname
);
6933 /* Expand any @ files within the command-line args,
6934 setting at_file_supplied if any were expanded. */
6937 driver::expand_at_files (int *argc
, char ***argv
) const
6939 char **old_argv
= *argv
;
6941 expandargv (argc
, argv
);
6943 /* Determine if any expansions were made. */
6944 if (*argv
!= old_argv
)
6945 at_file_supplied
= true;
6948 /* Decode the command-line arguments from argc/argv into the
6949 decoded_options array. */
6952 driver::decode_argv (int argc
, const char **argv
)
6954 /* Register the language-independent parameters. */
6955 global_init_params ();
6958 init_options_struct (&global_options
, &global_options_set
);
6960 decode_cmdline_options_to_array (argc
, argv
,
6962 &decoded_options
, &decoded_options_count
);
6965 /* Perform various initializations and setup. */
6968 driver::global_initializations ()
6970 /* Unlock the stdio streams. */
6971 unlock_std_streams ();
6973 gcc_init_libintl ();
6975 diagnostic_initialize (global_dc
, 0);
6977 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6978 /* Perform host dependent initialization when needed. */
6979 GCC_DRIVER_HOST_INITIALIZATION
;
6982 if (atexit (delete_temp_files
) != 0)
6983 fatal_error ("atexit failed");
6985 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6986 signal (SIGINT
, fatal_signal
);
6988 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6989 signal (SIGHUP
, fatal_signal
);
6991 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6992 signal (SIGTERM
, fatal_signal
);
6994 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6995 signal (SIGPIPE
, fatal_signal
);
6998 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6999 receive the signal. A different setting is inheritable */
7000 signal (SIGCHLD
, SIG_DFL
);
7003 /* Parsing and gimplification sometimes need quite large stack.
7004 Increase stack size limits if possible. */
7005 stack_limit_increase (64 * 1024 * 1024);
7007 /* Allocate the argument vector. */
7010 obstack_init (&obstack
);
7013 /* Build multilib_select, et. al from the separate lines that make up each
7014 multilib selection. */
7017 driver::build_multilib_strings () const
7021 const char *const *q
= multilib_raw
;
7024 obstack_init (&multilib_obstack
);
7025 while ((p
= *q
++) != (char *) 0)
7026 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7028 obstack_1grow (&multilib_obstack
, 0);
7029 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
7031 q
= multilib_matches_raw
;
7032 while ((p
= *q
++) != (char *) 0)
7033 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7035 obstack_1grow (&multilib_obstack
, 0);
7036 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
7038 q
= multilib_exclusions_raw
;
7039 while ((p
= *q
++) != (char *) 0)
7040 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7042 obstack_1grow (&multilib_obstack
, 0);
7043 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
7045 q
= multilib_reuse_raw
;
7046 while ((p
= *q
++) != (char *) 0)
7047 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7049 obstack_1grow (&multilib_obstack
, 0);
7050 multilib_reuse
= XOBFINISH (&multilib_obstack
, const char *);
7053 for (size_t i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
7056 obstack_1grow (&multilib_obstack
, ' ');
7057 obstack_grow (&multilib_obstack
,
7058 multilib_defaults_raw
[i
],
7059 strlen (multilib_defaults_raw
[i
]));
7063 obstack_1grow (&multilib_obstack
, 0);
7064 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
7068 /* Set up the spec-handling machinery. */
7071 driver::set_up_specs () const
7073 const char *spec_machine_suffix
;
7077 #ifdef INIT_ENVIRONMENT
7078 /* Set up any other necessary machine specific environment variables. */
7079 xputenv (INIT_ENVIRONMENT
);
7082 /* Make a table of what switches there are (switches, n_switches).
7083 Make a table of specified input files (infiles, n_infiles).
7084 Decode switches that are handled locally. */
7086 process_command (decoded_options_count
, decoded_options
);
7088 /* Initialize the vector of specs to just the default.
7089 This means one element containing 0s, as a terminator. */
7091 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
7092 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
7093 n_compilers
= n_default_compilers
;
7095 /* Read specs from a file if there is one. */
7097 machine_suffix
= concat (spec_host_machine
, dir_separator_str
, spec_version
,
7098 accel_dir_suffix
, dir_separator_str
, NULL
);
7099 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
7101 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
7102 /* Read the specs file unless it is a default one. */
7103 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
7104 read_specs (specs_file
, true, false);
7108 #ifdef ACCEL_COMPILER
7109 spec_machine_suffix
= machine_suffix
;
7111 spec_machine_suffix
= just_machine_suffix
;
7114 /* We need to check standard_exec_prefix/spec_machine_suffix/specs
7115 for any override of as, ld and libraries. */
7116 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
7117 + strlen (spec_machine_suffix
) + sizeof ("specs"));
7118 strcpy (specs_file
, standard_exec_prefix
);
7119 strcat (specs_file
, spec_machine_suffix
);
7120 strcat (specs_file
, "specs");
7121 if (access (specs_file
, R_OK
) == 0)
7122 read_specs (specs_file
, true, false);
7124 /* Process any configure-time defaults specified for the command line
7125 options, via OPTION_DEFAULT_SPECS. */
7126 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
7127 do_option_spec (option_default_specs
[i
].name
,
7128 option_default_specs
[i
].spec
);
7130 /* Process DRIVER_SELF_SPECS, adding any new options to the end
7131 of the command line. */
7133 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
7134 do_self_spec (driver_self_specs
[i
]);
7136 /* If not cross-compiling, look for executables in the standard
7138 if (*cross_compile
== '0')
7140 if (*md_exec_prefix
)
7142 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
7143 PREFIX_PRIORITY_LAST
, 0, 0);
7147 /* Process sysroot_suffix_spec. */
7148 if (*sysroot_suffix_spec
!= 0
7149 && !no_sysroot_suffix
7150 && do_spec_2 (sysroot_suffix_spec
) == 0)
7152 if (argbuf
.length () > 1)
7153 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
7154 else if (argbuf
.length () == 1)
7155 target_sysroot_suffix
= xstrdup (argbuf
.last ());
7158 #ifdef HAVE_LD_SYSROOT
7159 /* Pass the --sysroot option to the linker, if it supports that. If
7160 there is a sysroot_suffix_spec, it has already been processed by
7161 this point, so target_system_root really is the system root we
7163 if (target_system_root
)
7165 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
7166 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
7167 set_spec ("link", XOBFINISH (&obstack
, const char *), false);
7171 /* Process sysroot_hdrs_suffix_spec. */
7172 if (*sysroot_hdrs_suffix_spec
!= 0
7173 && !no_sysroot_suffix
7174 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
7176 if (argbuf
.length () > 1)
7177 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
7178 else if (argbuf
.length () == 1)
7179 target_sysroot_hdrs_suffix
= xstrdup (argbuf
.last ());
7182 /* Look for startfiles in the standard places. */
7183 if (*startfile_prefix_spec
!= 0
7184 && do_spec_2 (startfile_prefix_spec
) == 0
7185 && do_spec_1 (" ", 0, NULL
) == 0)
7189 FOR_EACH_VEC_ELT (argbuf
, ndx
, arg
)
7190 add_sysrooted_prefix (&startfile_prefixes
, arg
, "BINUTILS",
7191 PREFIX_PRIORITY_LAST
, 0, 1);
7193 /* We should eventually get rid of all these and stick to
7194 startfile_prefix_spec exclusively. */
7195 else if (*cross_compile
== '0' || target_system_root
)
7197 if (*md_startfile_prefix
)
7198 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
7199 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7201 if (*md_startfile_prefix_1
)
7202 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
7203 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7205 /* If standard_startfile_prefix is relative, base it on
7206 standard_exec_prefix. This lets us move the installed tree
7207 as a unit. If GCC_EXEC_PREFIX is defined, base
7208 standard_startfile_prefix on that as well.
7210 If the prefix is relative, only search it for native compilers;
7211 otherwise we will search a directory containing host libraries. */
7212 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
7213 add_sysrooted_prefix (&startfile_prefixes
,
7214 standard_startfile_prefix
, "BINUTILS",
7215 PREFIX_PRIORITY_LAST
, 0, 1);
7216 else if (*cross_compile
== '0')
7218 add_prefix (&startfile_prefixes
,
7219 concat (gcc_exec_prefix
7220 ? gcc_exec_prefix
: standard_exec_prefix
,
7222 standard_startfile_prefix
, NULL
),
7223 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
7226 /* Sysrooted prefixes are relocated because target_system_root is
7227 also relocated by gcc_exec_prefix. */
7228 if (*standard_startfile_prefix_1
)
7229 add_sysrooted_prefix (&startfile_prefixes
,
7230 standard_startfile_prefix_1
, "BINUTILS",
7231 PREFIX_PRIORITY_LAST
, 0, 1);
7232 if (*standard_startfile_prefix_2
)
7233 add_sysrooted_prefix (&startfile_prefixes
,
7234 standard_startfile_prefix_2
, "BINUTILS",
7235 PREFIX_PRIORITY_LAST
, 0, 1);
7238 /* Process any user specified specs in the order given on the command
7240 for (struct user_specs
*uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
7242 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
7244 read_specs (filename
? filename
: uptr
->filename
, false, true);
7247 /* Process any user self specs. */
7249 struct spec_list
*sl
;
7250 for (sl
= specs
; sl
; sl
= sl
->next
)
7251 if (sl
->name_len
== sizeof "self_spec" - 1
7252 && !strcmp (sl
->name
, "self_spec"))
7253 do_self_spec (*sl
->ptr_spec
);
7258 enum save_temps save
;
7260 if (!compare_debug_second
)
7262 n_switches_debug_check
[1] = n_switches
;
7263 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
7264 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
7267 do_self_spec ("%:compare-debug-self-opt()");
7268 n_switches_debug_check
[0] = n_switches
;
7269 n_switches_alloc_debug_check
[0] = n_switches_alloc
;
7270 switches_debug_check
[0] = switches
;
7272 n_switches
= n_switches_debug_check
[1];
7273 n_switches_alloc
= n_switches_alloc_debug_check
[1];
7274 switches
= switches_debug_check
[1];
7277 /* Avoid crash when computing %j in this early. */
7278 save
= save_temps_flag
;
7279 save_temps_flag
= SAVE_TEMPS_NONE
;
7281 compare_debug
= -compare_debug
;
7282 do_self_spec ("%:compare-debug-self-opt()");
7284 save_temps_flag
= save
;
7286 if (!compare_debug_second
)
7288 n_switches_debug_check
[1] = n_switches
;
7289 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
7290 switches_debug_check
[1] = switches
;
7291 compare_debug
= -compare_debug
;
7292 n_switches
= n_switches_debug_check
[0];
7293 n_switches_alloc
= n_switches_debug_check
[0];
7294 switches
= switches_debug_check
[0];
7299 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
7300 if (gcc_exec_prefix
)
7301 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_host_machine
,
7302 dir_separator_str
, spec_version
,
7303 accel_dir_suffix
, dir_separator_str
, NULL
);
7305 /* Now we have the specs.
7306 Set the `valid' bits for switches that match anything in any spec. */
7308 validate_all_switches ();
7310 /* Now that we have the switches and the specs, set
7311 the subdirectory based on the options. */
7312 set_multilib_dir ();
7315 /* Set up to remember the pathname of gcc and any options
7316 needed for collect. We use argv[0] instead of progname because
7317 we need the complete pathname. */
7320 driver::putenv_COLLECT_GCC (const char *argv0
) const
7322 obstack_init (&collect_obstack
);
7323 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
7324 obstack_grow (&collect_obstack
, argv0
, strlen (argv0
) + 1);
7325 xputenv (XOBFINISH (&collect_obstack
, char *));
7328 /* Set up to remember the pathname of the lto wrapper. */
7331 driver::maybe_putenv_COLLECT_LTO_WRAPPER () const
7333 char *lto_wrapper_file
;
7336 lto_wrapper_file
= NULL
;
7338 lto_wrapper_file
= find_a_file (&exec_prefixes
, "lto-wrapper",
7340 if (lto_wrapper_file
)
7342 lto_wrapper_file
= convert_white_space (lto_wrapper_file
);
7343 lto_wrapper_spec
= lto_wrapper_file
;
7344 obstack_init (&collect_obstack
);
7345 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
7346 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
7347 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
7348 strlen (lto_wrapper_spec
) + 1);
7349 xputenv (XOBFINISH (&collect_obstack
, char *));
7354 /* Set up to remember the names of offload targets. */
7357 driver::maybe_putenv_OFFLOAD_TARGETS () const
7359 const char *targets
= offload_targets
;
7361 /* If no targets specified by -foffload, use all available targets. */
7363 targets
= OFFLOAD_TARGETS
;
7365 if (strlen (targets
) > 0)
7367 obstack_grow (&collect_obstack
, "OFFLOAD_TARGET_NAMES=",
7368 sizeof ("OFFLOAD_TARGET_NAMES=") - 1);
7369 obstack_grow (&collect_obstack
, targets
,
7370 strlen (targets
) + 1);
7371 xputenv (XOBFINISH (&collect_obstack
, char *));
7374 free (offload_targets
);
7377 /* Reject switches that no pass was interested in. */
7380 driver::handle_unrecognized_options () const
7382 for (size_t i
= 0; (int) i
< n_switches
; i
++)
7383 if (! switches
[i
].validated
)
7384 error ("unrecognized command line option %<-%s%>", switches
[i
].part1
);
7387 /* Handle the various -print-* options, returning 0 if the driver
7388 should exit, or nonzero if the driver should continue. */
7391 driver::maybe_print_and_exit () const
7393 if (print_search_dirs
)
7395 printf (_("install: %s%s\n"),
7396 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
7397 gcc_exec_prefix
? "" : machine_suffix
);
7398 printf (_("programs: %s\n"),
7399 build_search_list (&exec_prefixes
, "", false, false));
7400 printf (_("libraries: %s\n"),
7401 build_search_list (&startfile_prefixes
, "", false, true));
7405 if (print_file_name
)
7407 printf ("%s\n", find_file (print_file_name
));
7411 if (print_prog_name
)
7413 if (use_ld
!= NULL
&& ! strcmp (print_prog_name
, "ld"))
7415 /* Append USE_LD to to the default linker. */
7416 #ifdef DEFAULT_LINKER
7418 # ifdef HAVE_HOST_EXECUTABLE_SUFFIX
7419 int len
= (sizeof (DEFAULT_LINKER
)
7420 - sizeof (HOST_EXECUTABLE_SUFFIX
));
7424 char *default_linker
= xstrdup (DEFAULT_LINKER
);
7425 /* Strip HOST_EXECUTABLE_SUFFIX if DEFAULT_LINKER contains
7426 HOST_EXECUTABLE_SUFFIX. */
7427 if (! strcmp (&default_linker
[len
], HOST_EXECUTABLE_SUFFIX
))
7429 default_linker
[len
] = '\0';
7430 ld
= concat (default_linker
, use_ld
,
7431 HOST_EXECUTABLE_SUFFIX
, NULL
);
7436 ld
= concat (DEFAULT_LINKER
, use_ld
, NULL
);
7437 if (access (ld
, X_OK
) == 0)
7439 printf ("%s\n", ld
);
7443 print_prog_name
= concat (print_prog_name
, use_ld
, NULL
);
7445 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
7446 printf ("%s\n", (newname
? newname
: print_prog_name
));
7450 if (print_multi_lib
)
7452 print_multilib_info ();
7456 if (print_multi_directory
)
7458 if (multilib_dir
== NULL
)
7461 printf ("%s\n", multilib_dir
);
7465 if (print_multiarch
)
7467 if (multiarch_dir
== NULL
)
7470 printf ("%s\n", multiarch_dir
);
7476 if (target_system_root
)
7478 if (target_sysroot_suffix
)
7479 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
7481 printf ("%s\n", target_system_root
);
7486 if (print_multi_os_directory
)
7488 if (multilib_os_dir
== NULL
)
7491 printf ("%s\n", multilib_os_dir
);
7495 if (print_sysroot_headers_suffix
)
7497 if (*sysroot_hdrs_suffix_spec
)
7499 printf("%s\n", (target_sysroot_hdrs_suffix
7500 ? target_sysroot_hdrs_suffix
7505 /* The error status indicates that only one set of fixed
7506 headers should be built. */
7507 fatal_error ("not configured with sysroot headers suffix");
7510 if (print_help_list
)
7516 printf (_("\nFor bug reporting instructions, please see:\n"));
7517 printf ("%s.\n", bug_report_url
);
7522 /* We do not exit here. Instead we have created a fake input file
7523 called 'help-dummy' which needs to be compiled, and we pass this
7524 on the various sub-processes, along with the --help switch.
7525 Ensure their output appears after ours. */
7526 fputc ('\n', stdout
);
7532 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
7534 printf ("Copyright %s 2014 Free Software Foundation, Inc.\n",
7536 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
7537 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
7542 /* We do not exit here. We use the same mechanism of --help to print
7543 the version of the sub-processes. */
7544 fputc ('\n', stdout
);
7550 print_configuration (stderr
);
7558 /* Figure out what to do with each input file.
7559 Return true if we need to exit early from "main", false otherwise. */
7562 driver::prepare_infiles ()
7565 int lang_n_infiles
= 0;
7567 if (n_infiles
== added_libraries
)
7568 fatal_error ("no input files");
7571 /* Early exit needed from main. */
7574 /* Make a place to record the compiler output file names
7575 that correspond to the input files. */
7578 i
+= lang_specific_extra_outfiles
;
7579 outfiles
= XCNEWVEC (const char *, i
);
7581 /* Record which files were specified explicitly as link input. */
7583 explicit_link_files
= XCNEWVEC (char, n_infiles
);
7585 combine_inputs
= have_o
|| flag_wpa
;
7587 for (i
= 0; (int) i
< n_infiles
; i
++)
7589 const char *name
= infiles
[i
].name
;
7590 struct compiler
*compiler
= lookup_compiler (name
,
7592 infiles
[i
].language
);
7594 if (compiler
&& !(compiler
->combinable
))
7595 combine_inputs
= false;
7597 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
7598 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
7599 infiles
[i
].incompiler
= compiler
;
7603 input_file_compiler
= compiler
;
7604 infiles
[i
].incompiler
= compiler
;
7608 /* Since there is no compiler for this input file, assume it is a
7610 explicit_link_files
[i
] = 1;
7611 infiles
[i
].incompiler
= NULL
;
7613 infiles
[i
].compiled
= false;
7614 infiles
[i
].preprocessed
= false;
7617 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
7618 fatal_error ("cannot specify -o with -c, -S or -E with multiple files");
7620 /* No early exit needed from main; we can continue. */
7624 /* Run the spec machinery on each input file. */
7627 driver::do_spec_on_infiles () const
7631 for (i
= 0; (int) i
< n_infiles
; i
++)
7633 int this_file_error
= 0;
7635 /* Tell do_spec what to substitute for %i. */
7637 input_file_number
= i
;
7638 set_input (infiles
[i
].name
);
7640 if (infiles
[i
].compiled
)
7643 /* Use the same thing in %o, unless cp->spec says otherwise. */
7645 outfiles
[i
] = gcc_input_filename
;
7647 /* Figure out which compiler from the file's suffix. */
7650 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
7651 infiles
[i
].language
);
7653 if (input_file_compiler
)
7655 /* Ok, we found an applicable compiler. Run its spec. */
7657 if (input_file_compiler
->spec
[0] == '#')
7659 error ("%s: %s compiler not installed on this system",
7660 gcc_input_filename
, &input_file_compiler
->spec
[1]);
7661 this_file_error
= 1;
7669 free (debug_check_temp_file
[0]);
7670 debug_check_temp_file
[0] = NULL
;
7672 free (debug_check_temp_file
[1]);
7673 debug_check_temp_file
[1] = NULL
;
7676 value
= do_spec (input_file_compiler
->spec
);
7677 infiles
[i
].compiled
= true;
7679 this_file_error
= 1;
7680 else if (compare_debug
&& debug_check_temp_file
[0])
7683 inform (0, "recompiling with -fcompare-debug");
7685 compare_debug
= -compare_debug
;
7686 n_switches
= n_switches_debug_check
[1];
7687 n_switches_alloc
= n_switches_alloc_debug_check
[1];
7688 switches
= switches_debug_check
[1];
7690 value
= do_spec (input_file_compiler
->spec
);
7692 compare_debug
= -compare_debug
;
7693 n_switches
= n_switches_debug_check
[0];
7694 n_switches_alloc
= n_switches_alloc_debug_check
[0];
7695 switches
= switches_debug_check
[0];
7699 error ("during -fcompare-debug recompilation");
7700 this_file_error
= 1;
7703 gcc_assert (debug_check_temp_file
[1]
7704 && filename_cmp (debug_check_temp_file
[0],
7705 debug_check_temp_file
[1]));
7708 inform (0, "comparing final insns dumps");
7710 if (compare_files (debug_check_temp_file
))
7711 this_file_error
= 1;
7716 free (debug_check_temp_file
[0]);
7717 debug_check_temp_file
[0] = NULL
;
7719 free (debug_check_temp_file
[1]);
7720 debug_check_temp_file
[1] = NULL
;
7725 /* If this file's name does not contain a recognized suffix,
7726 record it as explicit linker input. */
7729 explicit_link_files
[i
] = 1;
7731 /* Clear the delete-on-failure queue, deleting the files in it
7732 if this compilation failed. */
7734 if (this_file_error
)
7736 delete_failure_queue ();
7739 /* If this compilation succeeded, don't delete those files later. */
7740 clear_failure_queue ();
7743 /* Reset the input file name to the first compile/object file name, for use
7744 with %b in LINK_SPEC. We use the first input file that we can find
7745 a compiler to compile it instead of using infiles.language since for
7746 languages other than C we use aliases that we then lookup later. */
7751 for (i
= 0; i
< n_infiles
; i
++)
7752 if (infiles
[i
].incompiler
7753 || (infiles
[i
].language
&& infiles
[i
].language
[0] != '*'))
7755 set_input (infiles
[i
].name
);
7762 /* Make sure INPUT_FILE_NUMBER points to first available open
7764 input_file_number
= n_infiles
;
7765 if (lang_specific_pre_link ())
7770 /* If we have to run the linker, do it now. */
7773 driver::maybe_run_linker (const char *argv0
) const
7776 int linker_was_run
= 0;
7777 int num_linker_inputs
;
7779 /* Determine if there are any linker input files. */
7780 num_linker_inputs
= 0;
7781 for (i
= 0; (int) i
< n_infiles
; i
++)
7782 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
7783 num_linker_inputs
++;
7785 /* Run ld to link all the compiler output files. */
7787 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
7789 int tmp
= execution_count
;
7793 #if HAVE_LTO_PLUGIN > 0
7794 #if HAVE_LTO_PLUGIN == 2
7795 const char *fno_use_linker_plugin
= "fno-use-linker-plugin";
7797 const char *fuse_linker_plugin
= "fuse-linker-plugin";
7801 /* We'll use ld if we can't find collect2. */
7802 if (! strcmp (linker_name_spec
, "collect2"))
7804 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
7806 linker_name_spec
= "ld";
7809 #if HAVE_LTO_PLUGIN > 0
7810 #if HAVE_LTO_PLUGIN == 2
7811 if (!switch_matches (fno_use_linker_plugin
,
7812 fno_use_linker_plugin
7813 + strlen (fno_use_linker_plugin
), 0))
7815 if (switch_matches (fuse_linker_plugin
,
7817 + strlen (fuse_linker_plugin
), 0))
7820 char *temp_spec
= find_a_file (&exec_prefixes
,
7821 LTOPLUGINSONAME
, R_OK
,
7824 fatal_error ("-fuse-linker-plugin, but %s not found",
7826 linker_plugin_file_spec
= convert_white_space (temp_spec
);
7829 lto_gcc_spec
= argv0
;
7832 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
7834 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
7835 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
7837 if (print_subprocess_help
== 1)
7839 printf (_("\nLinker options\n==============\n\n"));
7840 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
7841 " to the linker.\n\n"));
7844 int value
= do_spec (link_command_spec
);
7847 linker_was_run
= (tmp
!= execution_count
);
7850 /* If options said don't run linker,
7851 complain about input files to be given to the linker. */
7853 if (! linker_was_run
&& !seen_error ())
7854 for (i
= 0; (int) i
< n_infiles
; i
++)
7855 if (explicit_link_files
[i
]
7856 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
7857 warning (0, "%s: linker input file unused because linking not done",
7861 /* The end of "main". */
7864 driver::final_actions () const
7866 /* Delete some or all of the temporary files we made. */
7869 delete_failure_queue ();
7870 delete_temp_files ();
7872 if (print_help_list
)
7874 printf (("\nFor bug reporting instructions, please see:\n"));
7875 printf ("%s\n", bug_report_url
);
7879 /* Determine what the exit code of the driver should be. */
7882 driver::get_exit_code () const
7884 return (signal_count
!= 0 ? 2
7885 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
7889 /* Find the proper compilation spec for the file name NAME,
7890 whose length is LENGTH. LANGUAGE is the specified language,
7891 or 0 if this file is to be passed to the linker. */
7893 static struct compiler
*
7894 lookup_compiler (const char *name
, size_t length
, const char *language
)
7896 struct compiler
*cp
;
7898 /* If this was specified by the user to be a linker input, indicate that. */
7899 if (language
!= 0 && language
[0] == '*')
7902 /* Otherwise, look for the language, if one is spec'd. */
7905 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7906 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
7909 error ("language %s not recognized", language
);
7913 /* Look for a suffix. */
7914 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7916 if (/* The suffix `-' matches only the file name `-'. */
7917 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7918 || (strlen (cp
->suffix
) < length
7919 /* See if the suffix matches the end of NAME. */
7920 && !strcmp (cp
->suffix
,
7921 name
+ length
- strlen (cp
->suffix
))
7926 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
7927 /* Look again, but case-insensitively this time. */
7929 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7931 if (/* The suffix `-' matches only the file name `-'. */
7932 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7933 || (strlen (cp
->suffix
) < length
7934 /* See if the suffix matches the end of NAME. */
7935 && ((!strcmp (cp
->suffix
,
7936 name
+ length
- strlen (cp
->suffix
))
7937 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
7938 && !strcasecmp (cp
->suffix
,
7939 name
+ length
- strlen (cp
->suffix
)))
7945 if (cp
>= compilers
)
7947 if (cp
->spec
[0] != '@')
7948 /* A non-alias entry: return it. */
7951 /* An alias entry maps a suffix to a language.
7952 Search for the language; pass 0 for NAME and LENGTH
7953 to avoid infinite recursion if language not found. */
7954 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
7960 save_string (const char *s
, int len
)
7962 char *result
= XNEWVEC (char, len
+ 1);
7964 memcpy (result
, s
, len
);
7970 pfatal_with_name (const char *name
)
7972 perror_with_name (name
);
7973 delete_temp_files ();
7978 perror_with_name (const char *name
)
7980 error ("%s: %m", name
);
7984 validate_switches_from_spec (const char *spec
, bool user
)
7986 const char *p
= spec
;
7989 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
7990 /* We have a switch spec. */
7991 p
= validate_switches (p
+ 1, user
);
7995 validate_all_switches (void)
7997 struct compiler
*comp
;
7998 struct spec_list
*spec
;
8000 for (comp
= compilers
; comp
->spec
; comp
++)
8001 validate_switches_from_spec (comp
->spec
, false);
8003 /* Look through the linked list of specs read from the specs file. */
8004 for (spec
= specs
; spec
; spec
= spec
->next
)
8005 validate_switches_from_spec (*spec
->ptr_spec
, spec
->user_p
);
8007 validate_switches_from_spec (link_command_spec
, false);
8010 /* Look at the switch-name that comes after START
8011 and mark as valid all supplied switches that match it. */
8014 validate_switches (const char *start
, bool user_spec
)
8016 const char *p
= start
;
8020 bool suffix
= false;
8021 bool starred
= false;
8023 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
8032 if (*p
== '.' || *p
== ',')
8036 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
8037 || *p
== ',' || *p
== '.' || *p
== '@')
8042 starred
= true, p
++;
8048 /* Mark all matching switches as valid. */
8049 for (i
= 0; i
< n_switches
; i
++)
8050 if (!strncmp (switches
[i
].part1
, atom
, len
)
8051 && (starred
|| switches
[i
].part1
[len
] == '\0')
8052 && (switches
[i
].known
|| user_spec
))
8053 switches
[i
].validated
= true;
8057 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
8060 if (*p
&& p
[-1] == ':')
8062 while (*p
&& *p
!= ';' && *p
!= '}')
8067 if (*p
== '{' || *p
== '<')
8068 p
= validate_switches (p
+1, user_spec
);
8069 else if (p
[0] == 'W' && p
[1] == '{')
8070 p
= validate_switches (p
+2, user_spec
);
8077 if (*p
&& p
[-1] == ';')
8091 static struct mdswitchstr
*mdswitches
;
8092 static int n_mdswitches
;
8094 /* Check whether a particular argument was used. The first time we
8095 canonicalize the switches to keep only the ones we care about. */
8098 used_arg (const char *p
, int len
)
8103 const char *replace
;
8108 static struct mswitchstr
*mswitches
;
8109 static int n_mswitches
;
8114 struct mswitchstr
*matches
;
8118 /* Break multilib_matches into the component strings of string
8119 and replacement string. */
8120 for (q
= multilib_matches
; *q
!= '\0'; q
++)
8125 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
8127 q
= multilib_matches
;
8136 fatal_error ("multilib spec %qs is invalid",
8141 matches
[i
].len
= q
- matches
[i
].str
;
8143 matches
[i
].replace
= ++q
;
8144 while (*q
!= ';' && *q
!= '\0')
8147 goto invalid_matches
;
8150 matches
[i
].rep_len
= q
- matches
[i
].replace
;
8156 /* Now build a list of the replacement string for switches that we care
8157 about. Make sure we allocate at least one entry. This prevents
8158 xmalloc from calling fatal, and prevents us from re-executing this
8161 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
8162 for (i
= 0; i
< n_switches
; i
++)
8163 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
8165 int xlen
= strlen (switches
[i
].part1
);
8166 for (j
= 0; j
< cnt
; j
++)
8167 if (xlen
== matches
[j
].len
8168 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
8170 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
8171 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
8172 mswitches
[n_mswitches
].replace
= (char *) 0;
8173 mswitches
[n_mswitches
].rep_len
= 0;
8179 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
8180 on the command line nor any options mutually incompatible with
8182 for (i
= 0; i
< n_mdswitches
; i
++)
8186 for (q
= multilib_options
; *q
!= '\0'; *q
&& q
++)
8192 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
8193 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
8195 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8202 if (*q
!= ' ' && *q
!= '\0')
8204 while (*r
!= ' ' && *r
!= '\0')
8207 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8210 if (used_arg (r
, q
- r
))
8215 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
8216 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
8217 mswitches
[n_mswitches
].replace
= (char *) 0;
8218 mswitches
[n_mswitches
].rep_len
= 0;
8231 for (i
= 0; i
< n_mswitches
; i
++)
8232 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
8239 default_arg (const char *p
, int len
)
8243 for (i
= 0; i
< n_mdswitches
; i
++)
8244 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
8250 /* Work out the subdirectory to use based on the options. The format of
8251 multilib_select is a list of elements. Each element is a subdirectory
8252 name followed by a list of options followed by a semicolon. The format
8253 of multilib_exclusions is the same, but without the preceding
8254 directory. First gcc will check the exclusions, if none of the options
8255 beginning with an exclamation point are present, and all of the other
8256 options are present, then we will ignore this completely. Passing
8257 that, gcc will consider each multilib_select in turn using the same
8258 rules for matching the options. If a match is found, that subdirectory
8260 A subdirectory name is optionally followed by a colon and the corresponding
8264 set_multilib_dir (void)
8267 unsigned int this_path_len
;
8268 const char *this_path
, *this_arg
;
8269 const char *start
, *end
;
8271 int ok
, ndfltok
, first
;
8274 start
= multilib_defaults
;
8275 while (*start
== ' ' || *start
== '\t')
8277 while (*start
!= '\0')
8280 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
8282 while (*start
== ' ' || *start
== '\t')
8290 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
8291 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
8293 while (*start
== ' ' || *start
== '\t')
8299 for (end
= start
+ 1;
8300 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
8303 obstack_grow (&multilib_obstack
, start
, end
- start
);
8304 obstack_1grow (&multilib_obstack
, 0);
8305 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
8306 mdswitches
[i
++].len
= end
- start
;
8313 p
= multilib_exclusions
;
8316 /* Ignore newlines. */
8323 /* Check the arguments. */
8330 fatal_error ("multilib exclusions %qs is invalid",
8331 multilib_exclusions
);
8341 while (*p
!= ' ' && *p
!= ';')
8344 goto invalid_exclusions
;
8348 if (*this_arg
!= '!')
8356 ok
= used_arg (this_arg
, p
- this_arg
);
8371 p
= multilib_select
;
8373 /* Append multilib reuse rules if any. With those rules, we can reuse
8374 one multilib for certain different options sets. */
8375 if (strlen (multilib_reuse
) > 0)
8376 p
= concat (p
, multilib_reuse
, NULL
);
8380 /* Ignore newlines. */
8387 /* Get the initial path. */
8394 fatal_error ("multilib select %qs %qs is invalid",
8395 multilib_select
, multilib_reuse
);
8399 this_path_len
= p
- this_path
;
8401 /* Check the arguments. */
8408 goto invalid_select
;
8417 while (*p
!= ' ' && *p
!= ';')
8420 goto invalid_select
;
8424 if (*this_arg
!= '!')
8432 /* If this is a default argument, we can just ignore it.
8433 This is true even if this_arg begins with '!'. Beginning
8434 with '!' does not mean that this argument is necessarily
8435 inappropriate for this library: it merely means that
8436 there is a more specific library which uses this
8437 argument. If this argument is a default, we need not
8438 consider that more specific library. */
8439 ok
= used_arg (this_arg
, p
- this_arg
);
8446 if (default_arg (this_arg
, p
- this_arg
))
8455 if (this_path_len
!= 1
8456 || this_path
[0] != '.')
8458 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
8461 strncpy (new_multilib_dir
, this_path
, this_path_len
);
8462 new_multilib_dir
[this_path_len
] = '\0';
8463 q
= strchr (new_multilib_dir
, ':');
8466 multilib_dir
= new_multilib_dir
;
8473 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
8475 while (q
< end
&& *q
!= ':')
8479 const char *q2
= q
+ 1, *ml_end
= end
;
8480 char *new_multilib_os_dir
;
8482 while (q2
< end
&& *q2
!= ':')
8486 if (ml_end
- q
== 1)
8487 multilib_os_dir
= xstrdup (".");
8490 new_multilib_os_dir
= XNEWVEC (char, ml_end
- q
);
8491 memcpy (new_multilib_os_dir
, q
+ 1, ml_end
- q
- 1);
8492 new_multilib_os_dir
[ml_end
- q
- 1] = '\0';
8493 multilib_os_dir
= new_multilib_os_dir
;
8496 if (q2
< end
&& *q2
== ':')
8498 char *new_multiarch_dir
= XNEWVEC (char, end
- q2
);
8499 memcpy (new_multiarch_dir
, q2
+ 1, end
- q2
- 1);
8500 new_multiarch_dir
[end
- q2
- 1] = '\0';
8501 multiarch_dir
= new_multiarch_dir
;
8510 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
8511 && strcmp (multilib_os_dir
, ".") == 0)
8513 free (CONST_CAST (char *, multilib_os_dir
));
8514 multilib_os_dir
= NULL
;
8516 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
8517 multilib_os_dir
= multilib_dir
;
8520 /* Print out the multiple library subdirectory selection
8521 information. This prints out a series of lines. Each line looks
8522 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
8523 required. Only the desired options are printed out, the negative
8524 matches. The options are print without a leading dash. There are
8525 no spaces to make it easy to use the information in the shell.
8526 Each subdirectory is printed only once. This assumes the ordering
8527 generated by the genmultilib script. Also, we leave out ones that match
8531 print_multilib_info (void)
8533 const char *p
= multilib_select
;
8534 const char *last_path
= 0, *this_path
;
8536 unsigned int last_path_len
= 0;
8541 /* Ignore newlines. */
8548 /* Get the initial path. */
8555 fatal_error ("multilib select %qs is invalid", multilib_select
);
8561 /* When --disable-multilib was used but target defines
8562 MULTILIB_OSDIRNAMES, entries starting with .: (and not starting
8563 with .:: for multiarch configurations) are there just to find
8564 multilib_os_dir, so skip them from output. */
8565 if (this_path
[0] == '.' && this_path
[1] == ':' && this_path
[2] != ':')
8568 /* Check for matches with the multilib_exclusions. We don't bother
8569 with the '!' in either list. If any of the exclusion rules match
8570 all of its options with the select rule, we skip it. */
8572 const char *e
= multilib_exclusions
;
8573 const char *this_arg
;
8578 /* Ignore newlines. */
8585 /* Check the arguments. */
8594 fatal_error ("multilib exclusion %qs is invalid",
8595 multilib_exclusions
);
8606 while (*e
!= ' ' && *e
!= ';')
8609 goto invalid_exclusion
;
8617 int len
= e
- this_arg
;
8620 goto invalid_select
;
8624 while (*q
!= ' ' && *q
!= ';')
8627 goto invalid_select
;
8631 if (! strncmp (arg
, this_arg
,
8632 (len
< q
- arg
) ? q
- arg
: len
)
8633 || default_arg (this_arg
, e
- this_arg
))
8663 /* If this is a duplicate, skip it. */
8664 skip
= (last_path
!= 0
8665 && (unsigned int) (p
- this_path
) == last_path_len
8666 && ! filename_ncmp (last_path
, this_path
, last_path_len
));
8668 last_path
= this_path
;
8669 last_path_len
= p
- this_path
;
8672 /* If this directory requires any default arguments, we can skip
8673 it. We will already have printed a directory identical to
8674 this one which does not require that default argument. */
8685 goto invalid_select
;
8692 while (*q
!= ' ' && *q
!= ';')
8695 goto invalid_select
;
8700 && default_arg (arg
, q
- arg
))
8715 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
8726 goto invalid_select
;
8734 use_arg
= *p
!= '!';
8739 while (*p
!= ' ' && *p
!= ';')
8742 goto invalid_select
;
8754 /* If there are extra options, print them now. */
8755 if (multilib_extra
&& *multilib_extra
)
8757 int print_at
= TRUE
;
8760 for (q
= multilib_extra
; *q
!= '\0'; q
++)
8781 /* getenv built-in spec function.
8783 Returns the value of the environment variable given by its first
8784 argument, concatenated with the second argument. If the
8785 environment variable is not defined, a fatal error is issued. */
8788 getenv_spec_function (int argc
, const char **argv
)
8798 value
= getenv (argv
[0]);
8800 fatal_error ("environment variable %qs not defined", argv
[0]);
8802 /* We have to escape every character of the environment variable so
8803 they are not interpreted as active spec characters. A
8804 particularly painful case is when we are reading a variable
8805 holding a windows path complete with \ separators. */
8806 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
8807 result
= XNEWVAR (char, len
);
8808 for (ptr
= result
; *value
; ptr
+= 2)
8814 strcpy (ptr
, argv
[1]);
8819 /* if-exists built-in spec function.
8821 Checks to see if the file specified by the absolute pathname in
8822 ARGS exists. Returns that pathname if found.
8824 The usual use for this function is to check for a library file
8825 (whose name has been expanded with %s). */
8828 if_exists_spec_function (int argc
, const char **argv
)
8830 /* Must have only one argument. */
8831 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8837 /* if-exists-else built-in spec function.
8839 This is like if-exists, but takes an additional argument which
8840 is returned if the first argument does not exist. */
8843 if_exists_else_spec_function (int argc
, const char **argv
)
8845 /* Must have exactly two arguments. */
8849 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8855 /* sanitize built-in spec function.
8857 This returns non-NULL, if sanitizing address, thread or
8858 any of the undefined behavior sanitizers. */
8861 sanitize_spec_function (int argc
, const char **argv
)
8866 if (strcmp (argv
[0], "address") == 0)
8867 return (flag_sanitize
& SANITIZE_USER_ADDRESS
) ? "" : NULL
;
8868 if (strcmp (argv
[0], "kernel-address") == 0)
8869 return (flag_sanitize
& SANITIZE_KERNEL_ADDRESS
) ? "" : NULL
;
8870 if (strcmp (argv
[0], "thread") == 0)
8871 return (flag_sanitize
& SANITIZE_THREAD
) ? "" : NULL
;
8872 if (strcmp (argv
[0], "undefined") == 0)
8873 return ((flag_sanitize
& (SANITIZE_UNDEFINED
| SANITIZE_NONDEFAULT
))
8874 && !flag_sanitize_undefined_trap_on_error
) ? "" : NULL
;
8875 if (strcmp (argv
[0], "leak") == 0)
8876 return ((flag_sanitize
8877 & (SANITIZE_ADDRESS
| SANITIZE_LEAK
| SANITIZE_THREAD
))
8878 == SANITIZE_LEAK
) ? "" : NULL
;
8882 /* replace-outfile built-in spec function.
8884 This looks for the first argument in the outfiles array's name and
8885 replaces it with the second argument. */
8888 replace_outfile_spec_function (int argc
, const char **argv
)
8891 /* Must have exactly two arguments. */
8895 for (i
= 0; i
< n_infiles
; i
++)
8897 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
8898 outfiles
[i
] = xstrdup (argv
[1]);
8903 /* remove-outfile built-in spec function.
8905 * This looks for the first argument in the outfiles array's name and
8909 remove_outfile_spec_function (int argc
, const char **argv
)
8912 /* Must have exactly one argument. */
8916 for (i
= 0; i
< n_infiles
; i
++)
8918 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
8924 /* Given two version numbers, compares the two numbers.
8925 A version number must match the regular expression
8926 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
8929 compare_version_strings (const char *v1
, const char *v2
)
8934 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
8935 REG_EXTENDED
| REG_NOSUB
) != 0)
8937 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
8938 if (rresult
== REG_NOMATCH
)
8939 fatal_error ("invalid version number %qs", v1
);
8940 else if (rresult
!= 0)
8942 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
8943 if (rresult
== REG_NOMATCH
)
8944 fatal_error ("invalid version number %qs", v2
);
8945 else if (rresult
!= 0)
8948 return strverscmp (v1
, v2
);
8952 /* version_compare built-in spec function.
8954 This takes an argument of the following form:
8956 <comparison-op> <arg1> [<arg2>] <switch> <result>
8958 and produces "result" if the comparison evaluates to true,
8959 and nothing if it doesn't.
8961 The supported <comparison-op> values are:
8963 >= true if switch is a later (or same) version than arg1
8965 < true if switch is an earlier version than arg1
8967 >< true if switch is arg1 or later, and earlier than arg2
8968 <> true if switch is earlier than arg1 or is arg2 or later
8970 If the switch is not present, the condition is false unless
8971 the first character of the <comparison-op> is '!'.
8974 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
8975 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
8978 version_compare_spec_function (int argc
, const char **argv
)
8982 const char *switch_value
= NULL
;
8987 fatal_error ("too few arguments to %%:version-compare");
8988 if (argv
[0][0] == '\0')
8990 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
8992 if (argc
!= nargs
+ 3)
8993 fatal_error ("too many arguments to %%:version-compare");
8995 switch_len
= strlen (argv
[nargs
+ 1]);
8996 for (i
= 0; i
< n_switches
; i
++)
8997 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
8998 && check_live_switch (i
, switch_len
))
8999 switch_value
= switches
[i
].part1
+ switch_len
;
9001 if (switch_value
== NULL
)
9005 comp1
= compare_version_strings (switch_value
, argv
[1]);
9007 comp2
= compare_version_strings (switch_value
, argv
[2]);
9009 comp2
= -1; /* This value unused. */
9012 switch (argv
[0][0] << 8 | argv
[0][1])
9014 case '>' << 8 | '=':
9015 result
= comp1
>= 0;
9017 case '!' << 8 | '<':
9018 result
= comp1
>= 0 || switch_value
== NULL
;
9023 case '!' << 8 | '>':
9024 result
= comp1
< 0 || switch_value
== NULL
;
9026 case '>' << 8 | '<':
9027 result
= comp1
>= 0 && comp2
< 0;
9029 case '<' << 8 | '>':
9030 result
= comp1
< 0 || comp2
>= 0;
9034 fatal_error ("unknown operator %qs in %%:version-compare", argv
[0]);
9039 return argv
[nargs
+ 2];
9042 /* %:include builtin spec function. This differs from %include in that it
9043 can be nested inside a spec, and thus be conditionalized. It takes
9044 one argument, the filename, and looks for it in the startfile path.
9045 The result is always NULL, i.e. an empty expansion. */
9048 include_spec_function (int argc
, const char **argv
)
9055 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
9056 read_specs (file
? file
: argv
[0], false, false);
9061 /* %:find-file spec function. This function replaces its argument by
9062 the file found through find_file, that is the -print-file-name gcc
9065 find_file_spec_function (int argc
, const char **argv
)
9072 file
= find_file (argv
[0]);
9077 /* %:find-plugindir spec function. This function replaces its argument
9078 by the -iplugindir=<dir> option. `dir' is found through find_file, that
9079 is the -print-file-name gcc program option. */
9081 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
9088 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
9093 /* %:print-asm-header spec function. Print a banner to say that the
9094 following output is from the assembler. */
9097 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
9098 const char **argv ATTRIBUTE_UNUSED
)
9100 printf (_("Assembler options\n=================\n\n"));
9101 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
9106 /* Get a random number for -frandom-seed */
9108 static unsigned HOST_WIDE_INT
9109 get_random_number (void)
9111 unsigned HOST_WIDE_INT ret
= 0;
9114 fd
= open ("/dev/urandom", O_RDONLY
);
9117 read (fd
, &ret
, sizeof (HOST_WIDE_INT
));
9123 /* Get some more or less random data. */
9124 #ifdef HAVE_GETTIMEOFDAY
9128 gettimeofday (&tv
, NULL
);
9129 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
9133 time_t now
= time (NULL
);
9135 if (now
!= (time_t)-1)
9136 ret
= (unsigned) now
;
9140 return ret
^ getpid ();
9143 /* %:compare-debug-dump-opt spec function. Save the last argument,
9144 expected to be the last -fdump-final-insns option, or generate a
9148 compare_debug_dump_opt_spec_function (int arg
,
9149 const char **argv ATTRIBUTE_UNUSED
)
9154 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
9157 fatal_error ("too many arguments to %%:compare-debug-dump-opt");
9159 do_spec_2 ("%{fdump-final-insns=*:%*}");
9160 do_spec_1 (" ", 0, NULL
);
9162 if (argbuf
.length () > 0
9163 && strcmp (argv
[argbuf
.length () - 1], "."))
9168 name
= xstrdup (argv
[argbuf
.length () - 1]);
9173 const char *ext
= NULL
;
9175 if (argbuf
.length () > 0)
9177 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
9180 else if (!compare_debug
)
9183 do_spec_2 ("%g.gkd");
9185 do_spec_1 (" ", 0, NULL
);
9187 gcc_assert (argbuf
.length () > 0);
9189 name
= concat (argbuf
.last (), ext
, NULL
);
9191 ret
= concat ("-fdump-final-insns=", name
, NULL
);
9194 which
= compare_debug
< 0;
9195 debug_check_temp_file
[which
] = name
;
9199 unsigned HOST_WIDE_INT value
= get_random_number ();
9201 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
9207 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
9218 static const char *debug_auxbase_opt
;
9220 /* %:compare-debug-self-opt spec function. Expands to the options
9221 that are to be passed in the second compilation of
9225 compare_debug_self_opt_spec_function (int arg
,
9226 const char **argv ATTRIBUTE_UNUSED
)
9229 fatal_error ("too many arguments to %%:compare-debug-self-opt");
9231 if (compare_debug
>= 0)
9234 do_spec_2 ("%{c|S:%{o*:%*}}");
9235 do_spec_1 (" ", 0, NULL
);
9237 if (argbuf
.length () > 0)
9238 debug_auxbase_opt
= concat ("-auxbase-strip ",
9242 debug_auxbase_opt
= NULL
;
9245 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
9246 %<fdump-final-insns=* -w -S -o %j \
9247 %{!fcompare-debug-second:-fcompare-debug-second} \
9248 ", compare_debug_opt
, NULL
);
9251 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
9252 options that are to be passed in the second compilation of
9253 compare-debug. It expects, as an argument, the basename of the
9254 current input file name, with the .gk suffix appended to it. */
9257 compare_debug_auxbase_opt_spec_function (int arg
,
9264 fatal_error ("too few arguments to %%:compare-debug-auxbase-opt");
9267 fatal_error ("too many arguments to %%:compare-debug-auxbase-opt");
9269 if (compare_debug
>= 0)
9272 len
= strlen (argv
[0]);
9273 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
9274 fatal_error ("argument to %%:compare-debug-auxbase-opt "
9275 "does not end in .gk");
9277 if (debug_auxbase_opt
)
9278 return debug_auxbase_opt
;
9280 #define OPT "-auxbase "
9283 name
= (char*) xmalloc (sizeof (OPT
) + len
);
9284 memcpy (name
, OPT
, sizeof (OPT
) - 1);
9285 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
9286 name
[sizeof (OPT
) - 1 + len
] = '\0';
9293 /* %:pass-through-libs spec function. Finds all -l options and input
9294 file names in the lib spec passed to it, and makes a list of them
9295 prepended with the plugin option to cause them to be passed through
9296 to the final link after all the new object files have been added. */
9299 pass_through_libs_spec_func (int argc
, const char **argv
)
9301 char *prepended
= xstrdup (" ");
9303 /* Shlemiel the painter's algorithm. Innately horrible, but at least
9304 we know that there will never be more than a handful of strings to
9305 concat, and it's only once per run, so it's not worth optimising. */
9306 for (n
= 0; n
< argc
; n
++)
9308 char *old
= prepended
;
9309 /* Anything that isn't an option is a full path to an output
9310 file; pass it through if it ends in '.a'. Among options,
9312 if (argv
[n
][0] == '-' && argv
[n
][1] == 'l')
9314 const char *lopt
= argv
[n
] + 2;
9315 /* Handle both joined and non-joined -l options. If for any
9316 reason there's a trailing -l with no joined or following
9317 arg just discard it. */
9318 if (!*lopt
&& ++n
>= argc
)
9322 prepended
= concat (prepended
, "-plugin-opt=-pass-through=-l",
9325 else if (!strcmp (".a", argv
[n
] + strlen (argv
[n
]) - 2))
9327 prepended
= concat (prepended
, "-plugin-opt=-pass-through=",
9328 argv
[n
], " ", NULL
);
9330 if (prepended
!= old
)
9336 /* %:replace-extension spec function. Replaces the extension of the
9337 first argument with the second argument. */
9340 replace_extension_spec_func (int argc
, const char **argv
)
9348 fatal_error ("too few arguments to %%:replace-extension");
9350 name
= xstrdup (argv
[0]);
9352 for (i
= strlen (name
) - 1; i
>= 0; i
--)
9353 if (IS_DIR_SEPARATOR (name
[i
]))
9356 p
= strrchr (name
+ i
+ 1, '.');
9360 result
= concat (name
, argv
[1], NULL
);
9366 /* Insert backslash before spaces in ORIG (usually a file path), to
9367 avoid being broken by spec parser.
9369 This function is needed as do_spec_1 treats white space (' ' and '\t')
9370 as the end of an argument. But in case of -plugin /usr/gcc install/xxx.so,
9371 the file name should be treated as a single argument rather than being
9372 broken into multiple. Solution is to insert '\\' before the space in a
9375 This function converts and only converts all occurrence of ' '
9376 to '\\' + ' ' and '\t' to '\\' + '\t'. For example:
9380 "a\\ b" -> "a\\\\ b"
9382 orig: input null-terminating string that was allocated by xalloc. The
9383 memory it points to might be freed in this function. Behavior undefined
9384 if ORIG wasn't xalloced or was freed already at entry.
9386 Return: ORIG if no conversion needed. Otherwise a newly allocated string
9387 that was converted from ORIG. */
9390 convert_white_space (char *orig
)
9392 int len
, number_of_space
= 0;
9394 for (len
= 0; orig
[len
]; len
++)
9395 if (orig
[len
] == ' ' || orig
[len
] == '\t') number_of_space
++;
9397 if (number_of_space
)
9399 char *new_spec
= (char *) xmalloc (len
+ number_of_space
+ 1);
9401 for (j
= 0, k
= 0; j
<= len
; j
++, k
++)
9403 if (orig
[j
] == ' ' || orig
[j
] == '\t')
9404 new_spec
[k
++] = '\\';
9405 new_spec
[k
] = orig
[j
];