1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987-2015 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
20 /* This program is the user interface to the C compiler and possibly to
21 other compilers. It is used because compilation is a complicated procedure
22 which involves running several programs and passing temporary files between
23 them, forwarding the users switches to those programs selectively,
24 and deleting the temporary files at the end.
26 CC recognizes how to compile each input file by suffixes in the file names.
27 Once it knows which kind of compilation to perform, the procedure for
28 compilation is specified by a string called a "spec". */
32 #include "coretypes.h"
33 #include "multilib.h" /* before tm.h */
40 #include "diagnostic.h"
45 #include "filenames.h"
47 /* By default there is no special suffix for target executables. */
48 /* FIXME: when autoconf is fixed, remove the host check - dj */
49 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
50 #define HAVE_TARGET_EXECUTABLE_SUFFIX
53 /* By default there is no special suffix for host executables. */
54 #ifdef HOST_EXECUTABLE_SUFFIX
55 #define HAVE_HOST_EXECUTABLE_SUFFIX
57 #define HOST_EXECUTABLE_SUFFIX ""
60 /* By default, the suffix for target object files is ".o". */
61 #ifdef TARGET_OBJECT_SUFFIX
62 #define HAVE_TARGET_OBJECT_SUFFIX
64 #define TARGET_OBJECT_SUFFIX ".o"
67 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
69 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
70 #ifndef LIBRARY_PATH_ENV
71 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
74 /* If a stage of compilation returns an exit status >= 1,
75 compilation of that file ceases. */
77 #define MIN_FATAL_STATUS 1
79 /* Flag set by cppspec.c to 1. */
82 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
83 static bool at_file_supplied
;
85 /* Definition of string containing the arguments given to configure. */
86 #include "configargs.h"
88 /* Flag saying to print the command line options understood by gcc and its
91 static int print_help_list
;
93 /* Flag saying to print the version of gcc and its sub-processes. */
95 static int print_version
;
97 /* Flag indicating whether we should ONLY print the command and
98 arguments (like verbose_flag) without executing the command.
99 Displayed arguments are quoted so that the generated command
100 line is suitable for execution. This is intended for use in
101 shell scripts to capture the driver-generated command line. */
102 static int verbose_only_flag
;
104 /* Flag indicating how to print command line options of sub-processes. */
106 static int print_subprocess_help
;
108 /* Linker suffix passed to -fuse-ld=... */
109 static const char *use_ld
;
111 /* Whether we should report subprocess execution times to a file. */
113 FILE *report_times_to_file
= NULL
;
115 /* Nonzero means place this string before uses of /, so that include
116 and library files can be found in an alternate location. */
118 #ifdef TARGET_SYSTEM_ROOT
119 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
121 static const char *target_system_root
= 0;
124 /* Nonzero means pass the updated target_system_root to the compiler. */
126 static int target_system_root_changed
;
128 /* Nonzero means append this string to target_system_root. */
130 static const char *target_sysroot_suffix
= 0;
132 /* Nonzero means append this string to target_system_root for headers. */
134 static const char *target_sysroot_hdrs_suffix
= 0;
136 /* Nonzero means write "temp" files in source directory
137 and use the source file's name in them, and don't delete them. */
139 static enum save_temps
{
140 SAVE_TEMPS_NONE
, /* no -save-temps */
141 SAVE_TEMPS_CWD
, /* -save-temps in current directory */
142 SAVE_TEMPS_OBJ
/* -save-temps in object directory */
145 /* Output file to use to get the object directory for -save-temps=obj */
146 static char *save_temps_prefix
= 0;
147 static size_t save_temps_length
= 0;
149 /* The compiler version. */
151 static const char *compiler_version
;
153 /* The target version. */
155 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
157 /* The target machine. */
159 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
160 static const char *spec_host_machine
= DEFAULT_REAL_TARGET_MACHINE
;
162 /* List of offload targets. */
164 static char *offload_targets
= NULL
;
166 /* Nonzero if cross-compiling.
167 When -b is used, the value comes from the `specs' file. */
169 #ifdef CROSS_DIRECTORY_STRUCTURE
170 static const char *cross_compile
= "1";
172 static const char *cross_compile
= "0";
175 /* Greatest exit code of sub-processes that has been encountered up to
177 static int greatest_status
= 1;
179 /* This is the obstack which we use to allocate many strings. */
181 static struct obstack obstack
;
183 /* This is the obstack to build an environment variable to pass to
184 collect2 that describes all of the relevant switches of what to
185 pass the compiler in building the list of pointers to constructors
188 static struct obstack collect_obstack
;
190 /* Forward declaration for prototypes. */
194 static void init_spec (void);
195 static void store_arg (const char *, int, int);
196 static void insert_wrapper (const char *);
197 static char *load_specs (const char *);
198 static void read_specs (const char *, bool, bool);
199 static void set_spec (const char *, const char *, bool);
200 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
201 static char *build_search_list (const struct path_prefix
*, const char *,
203 static void xputenv (const char *);
204 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
206 static int access_check (const char *, int);
207 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
208 static void add_prefix (struct path_prefix
*, const char *, const char *,
210 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
211 const char *, int, int, int);
212 static char *skip_whitespace (char *);
213 static void delete_if_ordinary (const char *);
214 static void delete_temp_files (void);
215 static void delete_failure_queue (void);
216 static void clear_failure_queue (void);
217 static int check_live_switch (int, int);
218 static const char *handle_braces (const char *);
219 static inline bool input_suffix_matches (const char *, const char *);
220 static inline bool switch_matches (const char *, const char *, int);
221 static inline void mark_matching_switches (const char *, const char *, int);
222 static inline void process_marked_switches (void);
223 static const char *process_brace_body (const char *, const char *, const char *, int, int);
224 static const struct spec_function
*lookup_spec_function (const char *);
225 static const char *eval_spec_function (const char *, const char *);
226 static const char *handle_spec_function (const char *, bool *);
227 static char *save_string (const char *, int);
228 static void set_collect_gcc_options (void);
229 static int do_spec_1 (const char *, int, const char *);
230 static int do_spec_2 (const char *);
231 static void do_option_spec (const char *, const char *);
232 static void do_self_spec (const char *);
233 static const char *find_file (const char *);
234 static int is_directory (const char *, bool);
235 static const char *validate_switches (const char *, bool);
236 static void validate_all_switches (void);
237 static inline void validate_switches_from_spec (const char *, bool);
238 static void give_switch (int, int);
239 static int used_arg (const char *, int);
240 static int default_arg (const char *, int);
241 static void set_multilib_dir (void);
242 static void print_multilib_info (void);
243 static void perror_with_name (const char *);
244 static void display_help (void);
245 static void add_preprocessor_option (const char *, int);
246 static void add_assembler_option (const char *, int);
247 static void add_linker_option (const char *, int);
248 static void process_command (unsigned int, struct cl_decoded_option
*);
249 static int execute (void);
250 static void alloc_args (void);
251 static void clear_args (void);
252 static void fatal_signal (int);
253 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
254 static void init_gcc_specs (struct obstack
*, const char *, const char *,
257 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
258 static const char *convert_filename (const char *, int, int);
261 static void try_generate_repro (const char **argv
);
262 static const char *getenv_spec_function (int, const char **);
263 static const char *if_exists_spec_function (int, const char **);
264 static const char *if_exists_else_spec_function (int, const char **);
265 static const char *sanitize_spec_function (int, const char **);
266 static const char *replace_outfile_spec_function (int, const char **);
267 static const char *remove_outfile_spec_function (int, const char **);
268 static const char *version_compare_spec_function (int, const char **);
269 static const char *include_spec_function (int, const char **);
270 static const char *find_file_spec_function (int, const char **);
271 static const char *find_plugindir_spec_function (int, const char **);
272 static const char *print_asm_header_spec_function (int, const char **);
273 static const char *compare_debug_dump_opt_spec_function (int, const char **);
274 static const char *compare_debug_self_opt_spec_function (int, const char **);
275 static const char *compare_debug_auxbase_opt_spec_function (int, const char **);
276 static const char *pass_through_libs_spec_func (int, const char **);
277 static const char *replace_extension_spec_func (int, const char **);
278 static char *convert_white_space (char *);
280 /* The Specs Language
282 Specs are strings containing lines, each of which (if not blank)
283 is made up of a program name, and arguments separated by spaces.
284 The program name must be exact and start from root, since no path
285 is searched and it is unreliable to depend on the current working directory.
286 Redirection of input or output is not supported; the subprograms must
287 accept filenames saying what files to read and write.
289 In addition, the specs can contain %-sequences to substitute variable text
290 or for conditional text. Here is a table of all defined %-sequences.
291 Note that spaces are not generated automatically around the results of
292 expanding these sequences; therefore, you can concatenate them together
293 or with constant text in a single argument.
295 %% substitute one % into the program name or argument.
296 %i substitute the name of the input file being processed.
297 %b substitute the basename of the input file being processed.
298 This is the substring up to (and not including) the last period
299 and not including the directory unless -save-temps was specified
300 to put temporaries in a different location.
301 %B same as %b, but include the file suffix (text after the last period).
303 substitute a file name that has suffix SUFFIX and is chosen
304 once per compilation, and mark the argument a la %d. To reduce
305 exposure to denial-of-service attacks, the file name is now
306 chosen in a way that is hard to predict even when previously
307 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
308 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
309 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
310 had been pre-processed. Previously, %g was simply substituted
311 with a file name chosen once per compilation, without regard
312 to any appended suffix (which was therefore treated just like
313 ordinary text), making such attacks more likely to succeed.
315 like %g, but if -pipe is in effect, expands simply to "-".
317 like %g, but if -pipe is in effect, expands to nothing. (We have both
318 %| and %m to accommodate differences between system assemblers; see
319 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
321 like %g, but generates a new temporary file name even if %uSUFFIX
324 substitutes the last file name generated with %uSUFFIX, generating a
325 new one if there is no such last file name. In the absence of any
326 %uSUFFIX, this is just like %gSUFFIX, except they don't share
327 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
328 would involve the generation of two distinct file names, one
329 for each `%g.s' and another for each `%U.s'. Previously, %U was
330 simply substituted with a file name chosen for the previous %u,
331 without regard to any appended suffix.
333 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
334 writable, and if save-temps is off; otherwise, substitute the name
335 of a temporary file, just like %u. This temporary file is not
336 meant for communication between processes, but rather as a junk
339 substitutes .SUFFIX for the suffixes of a matched switch's args when
340 it is subsequently output with %*. SUFFIX is terminated by the next
342 %d marks the argument containing or following the %d as a
343 temporary file name, so that that file will be deleted if GCC exits
344 successfully. Unlike %g, this contributes no text to the argument.
345 %w marks the argument containing or following the %w as the
346 "output file" of this compilation. This puts the argument
347 into the sequence of arguments that %o will substitute later.
348 %V indicates that this compilation produces no "output file".
350 like %{...} but mark last argument supplied within
351 as a file to be deleted on failure.
352 %o substitutes the names of all the output files, with spaces
353 automatically placed around them. You should write spaces
354 around the %o as well or the results are undefined.
355 %o is for use in the specs for running the linker.
356 Input files whose names have no recognized suffix are not compiled
357 at all, but they are included among the output files, so they will
359 %O substitutes the suffix for object files. Note that this is
360 handled specially when it immediately follows %g, %u, or %U
361 (with or without a suffix argument) because of the need for
362 those to form complete file names. The handling is such that
363 %O is treated exactly as if it had already been substituted,
364 except that %g, %u, and %U do not currently support additional
365 SUFFIX characters following %O as they would following, for
367 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
368 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
369 and -B options) and -imultilib as necessary.
370 %s current argument is the name of a library or startup file of some sort.
371 Search for that file in a standard list of directories
372 and substitute the full name found.
373 %eSTR Print STR as an error message. STR is terminated by a newline.
374 Use this when inconsistent options are detected.
375 %nSTR Print STR as a notice. STR is terminated by a newline.
376 %x{OPTION} Accumulate an option for %X.
377 %X Output the accumulated linker options specified by compilations.
378 %Y Output the accumulated assembler options specified by compilations.
379 %Z Output the accumulated preprocessor options specified by compilations.
380 %a process ASM_SPEC as a spec.
381 This allows config.h to specify part of the spec for running as.
382 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
383 used here. This can be used to run a post-processor after the
384 assembler has done its job.
385 %D Dump out a -L option for each directory in startfile_prefixes.
386 If multilib_dir is set, extra entries are generated with it affixed.
387 %l process LINK_SPEC as a spec.
388 %L process LIB_SPEC as a spec.
389 %M Output multilib_os_dir.
390 %G process LIBGCC_SPEC as a spec.
391 %R Output the concatenation of target_system_root and
392 target_sysroot_suffix.
393 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
394 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
395 %C process CPP_SPEC as a spec.
396 %1 process CC1_SPEC as a spec.
397 %2 process CC1PLUS_SPEC as a spec.
398 %* substitute the variable part of a matched option. (See below.)
399 Note that each comma in the substituted string is replaced by
400 a single space. A space is appended after the last substition
401 unless there is more text in current sequence.
402 %<S remove all occurrences of -S from the command line.
403 Note - this command is position dependent. % commands in the
404 spec string before this one will see -S, % commands in the
405 spec string after this one will not.
406 %>S Similar to "%<S", but keep it in the GCC command line.
407 %<S* remove all occurrences of all switches beginning with -S from the
410 Call the named function FUNCTION, passing it ARGS. ARGS is
411 first processed as a nested spec string, then split into an
412 argument vector in the usual fashion. The function returns
413 a string which is processed as if it had appeared literally
414 as part of the current spec.
415 %{S} substitutes the -S switch, if that switch was given to GCC.
416 If that switch was not specified, this substitutes nothing.
417 Here S is a metasyntactic variable.
418 %{S*} substitutes all the switches specified to GCC whose names start
419 with -S. This is used for -o, -I, etc; switches that take
420 arguments. GCC considers `-o foo' as being one switch whose
421 name starts with `o'. %{o*} would substitute this text,
422 including the space; thus, two arguments would be generated.
423 %{S*&T*} likewise, but preserve order of S and T options (the order
424 of S and T in the spec is not significant). Can be any number
425 of ampersand-separated variables; for each the wild card is
426 optional. Useful for CPP as %{D*&U*&A*}.
428 %{S:X} substitutes X, if the -S switch was given to GCC.
429 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
430 %{S*:X} substitutes X if one or more switches whose names start
431 with -S was given to GCC. Normally X is substituted only
432 once, no matter how many such switches appeared. However,
433 if %* appears somewhere in X, then X will be substituted
434 once for each matching switch, with the %* replaced by the
435 part of that switch that matched the '*'. A space will be
436 appended after the last substition unless there is more
437 text in current sequence.
438 %{.S:X} substitutes X, if processing a file with suffix S.
439 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
440 %{,S:X} substitutes X, if processing a file which will use spec S.
441 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
443 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
444 combined with '!', '.', ',', and '*' as above binding stronger
446 If %* appears in X, all of the alternatives must be starred, and
447 only the first matching alternative is substituted.
448 %{%:function(args):X}
449 Call function named FUNCTION with args ARGS. If the function
450 returns non-NULL, then X is substituted, if it returns
451 NULL, it isn't substituted.
452 %{S:X; if S was given to GCC, substitutes X;
453 T:Y; else if T was given to GCC, substitutes Y;
454 :D} else substitutes D. There can be as many clauses as you need.
455 This may be combined with '.', '!', ',', '|', and '*' as above.
457 %(Spec) processes a specification defined in a specs file as *Spec:
459 The conditional text X in a %{S:X} or similar construct may contain
460 other nested % constructs or spaces, or even newlines. They are
461 processed as usual, as described above. Trailing white space in X is
462 ignored. White space may also appear anywhere on the left side of the
463 colon in these constructs, except between . or * and the corresponding
466 The -O, -f, -g, -m, and -W switches are handled specifically in these
467 constructs. If another value of -O or the negated form of a -f, -m, or
468 -W switch is found later in the command line, the earlier switch
469 value is ignored, except with {S*} where S is just one letter; this
470 passes all matching options.
472 The character | at the beginning of the predicate text is used to indicate
473 that a command should be piped to the following command, but only if -pipe
476 Note that it is built into GCC which switches take arguments and which
477 do not. You might think it would be useful to generalize this to
478 allow each compiler's spec to say which switches take arguments. But
479 this cannot be done in a consistent fashion. GCC cannot even decide
480 which input files have been specified without knowing which switches
481 take arguments, and it must know which input files to compile in order
482 to tell which compilers to run.
484 GCC also knows implicitly that arguments starting in `-l' are to be
485 treated as compiler output files, and passed to the linker in their
486 proper position among the other output files. */
488 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
490 /* config.h can define ASM_SPEC to provide extra args to the assembler
491 or extra switch-translations. */
496 /* config.h can define ASM_FINAL_SPEC to run a post processor after
497 the assembler has run. */
498 #ifndef ASM_FINAL_SPEC
499 #define ASM_FINAL_SPEC \
501 objcopy --extract-dwo \
502 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
503 %{c:%{o*:%:replace-extension(%{o*:%*} .dwo)}%{!o*:%b.dwo}}%{!c:%b.dwo} \n\
504 objcopy --strip-dwo \
505 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
509 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
510 or extra switch-translations. */
515 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
516 or extra switch-translations. */
521 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
522 or extra switch-translations. */
524 #define CC1PLUS_SPEC ""
527 /* config.h can define LINK_SPEC to provide extra args to the linker
528 or extra switch-translations. */
533 /* config.h can define LIB_SPEC to override the default libraries. */
535 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
538 /* When using -fsplit-stack we need to wrap pthread_create, in order
539 to initialize the stack guard. We always use wrapping, rather than
540 shared library ordering, and we keep the wrapper function in
541 libgcc. This is not yet a real spec, though it could become one;
542 it is currently just stuffed into LINK_SPEC. FIXME: This wrapping
543 only works with GNU ld and gold. */
544 #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
547 #define STATIC_LIBASAN_LIBS \
548 " %{static-libasan:%:include(libsanitizer.spec)%(link_libasan)}"
549 #ifdef LIBASAN_EARLY_SPEC
550 #define LIBASAN_SPEC STATIC_LIBASAN_LIBS
551 #elif defined(HAVE_LD_STATIC_DYNAMIC)
552 #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \
553 "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \
556 #define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS
560 #ifndef LIBASAN_EARLY_SPEC
561 #define LIBASAN_EARLY_SPEC ""
565 #define STATIC_LIBTSAN_LIBS \
566 " %{static-libtsan:%:include(libsanitizer.spec)%(link_libtsan)}"
567 #ifdef LIBTSAN_EARLY_SPEC
568 #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
569 #elif defined(HAVE_LD_STATIC_DYNAMIC)
570 #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \
571 "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
574 #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
578 #ifndef LIBTSAN_EARLY_SPEC
579 #define LIBTSAN_EARLY_SPEC ""
583 #define STATIC_LIBLSAN_LIBS \
584 " %{static-liblsan:%:include(libsanitizer.spec)%(link_liblsan)}"
585 #ifdef LIBLSAN_EARLY_SPEC
586 #define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS
587 #elif defined(HAVE_LD_STATIC_DYNAMIC)
588 #define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION \
589 "} -llsan %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
592 #define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS
596 #ifndef LIBLSAN_EARLY_SPEC
597 #define LIBLSAN_EARLY_SPEC ""
600 #ifndef LIBUBSAN_SPEC
601 #define STATIC_LIBUBSAN_LIBS \
602 " %{static-libubsan:%:include(libsanitizer.spec)%(link_libubsan)}"
603 #ifdef HAVE_LD_STATIC_DYNAMIC
604 #define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \
605 "} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
608 #define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS
612 /* Linker options for compressed debug sections. */
613 #if HAVE_LD_COMPRESS_DEBUG == 0
614 /* No linker support. */
615 #define LINK_COMPRESS_DEBUG_SPEC \
616 " %{gz*:%e-gz is not supported in this configuration} "
617 #elif HAVE_LD_COMPRESS_DEBUG == 1
618 /* GNU style on input, GNU ld options. Reject, not useful. */
619 #define LINK_COMPRESS_DEBUG_SPEC \
620 " %{gz*:%e-gz is not supported in this configuration} "
621 #elif HAVE_LD_COMPRESS_DEBUG == 2
622 /* GNU style, GNU gold options. */
623 #define LINK_COMPRESS_DEBUG_SPEC \
624 " %{gz|gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
625 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
626 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
627 #elif HAVE_LD_COMPRESS_DEBUG == 3
628 /* ELF gABI style. */
629 #define LINK_COMPRESS_DEBUG_SPEC \
630 " %{gz|gz=zlib:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
631 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
632 " %{gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
634 #error Unknown value for HAVE_LD_COMPRESS_DEBUG.
637 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
640 #if defined(REAL_LIBGCC_SPEC)
641 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
642 #elif defined(LINK_LIBGCC_SPECIAL_1)
643 /* Have gcc do the search for libgcc.a. */
644 #define LIBGCC_SPEC "libgcc.a%s"
646 #define LIBGCC_SPEC "-lgcc"
650 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
651 #ifndef STARTFILE_SPEC
652 #define STARTFILE_SPEC \
653 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
656 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
658 #define ENDFILE_SPEC ""
662 #define LINKER_NAME "collect2"
665 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
666 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
671 /* Assembler options for compressed debug sections. */
672 #if HAVE_LD_COMPRESS_DEBUG < 2
673 /* Reject if the linker cannot write compressed debug sections. */
674 #define ASM_COMPRESS_DEBUG_SPEC \
675 " %{gz*:%e-gz is not supported in this configuration} "
676 #else /* HAVE_LD_COMPRESS_DEBUG >= 2 */
677 #if HAVE_AS_COMPRESS_DEBUG == 0
678 /* No assembler support. Ignore silently. */
679 #define ASM_COMPRESS_DEBUG_SPEC \
681 #elif HAVE_AS_COMPRESS_DEBUG == 1
682 /* GNU style, GNU as options. */
683 #define ASM_COMPRESS_DEBUG_SPEC \
684 " %{gz|gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "}" \
685 " %{gz=none:" AS_NO_COMPRESS_DEBUG_OPTION "}" \
686 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
687 #elif HAVE_AS_COMPRESS_DEBUG == 2
688 /* ELF gABI style. */
689 #define ASM_COMPRESS_DEBUG_SPEC \
690 " %{gz|gz=zlib:" AS_COMPRESS_DEBUG_OPTION "=zlib}" \
691 " %{gz=none:" AS_COMPRESS_DEBUG_OPTION "=none}" \
692 " %{gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
694 #error Unknown value for HAVE_AS_COMPRESS_DEBUG.
696 #endif /* HAVE_LD_COMPRESS_DEBUG >= 2 */
698 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
700 #ifndef ASM_DEBUG_SPEC
701 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
702 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
703 # define ASM_DEBUG_SPEC \
704 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
705 ? "%{!g0:%{gdwarf*:--gdwarf2}%{!gdwarf*:%{g*:--gstabs}}}" ASM_MAP \
706 : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
708 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
709 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP
711 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
712 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP
716 #ifndef ASM_DEBUG_SPEC
717 # define ASM_DEBUG_SPEC ""
720 /* Here is the spec for running the linker, after compiling all files. */
722 /* This is overridable by the target in case they need to specify the
723 -lgcc and -lc order specially, yet not require them to override all
724 of LINK_COMMAND_SPEC. */
725 #ifndef LINK_GCC_C_SEQUENCE_SPEC
726 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
729 #ifndef LINK_SSP_SPEC
730 #ifdef TARGET_LIBC_PROVIDES_SSP
731 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
732 "|fstack-protector-strong|fstack-protector-explicit:}"
734 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
735 "|fstack-protector-strong|fstack-protector-explicit" \
736 ":-lssp_nonshared -lssp}"
740 #ifndef LINK_PIE_SPEC
742 #define LINK_PIE_SPEC "%{pie:-pie} "
744 #define LINK_PIE_SPEC "%{pie:} "
748 #ifndef LINK_BUILDID_SPEC
749 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
750 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
754 /* Conditional to test whether the LTO plugin is used or not.
755 FIXME: For slim LTO we will need to enable plugin unconditionally. This
756 still cause problems with PLUGIN_LD != LD and when plugin is built but
757 not useable. For GCC 4.6 we don't support slim LTO and thus we can enable
758 plugin only when LTO is enabled. We still honor explicit
759 -fuse-linker-plugin if the linker used understands -plugin. */
761 /* The linker has some plugin support. */
762 #if HAVE_LTO_PLUGIN > 0
763 /* The linker used has full plugin support, use LTO plugin by default. */
764 #if HAVE_LTO_PLUGIN == 2
765 #define PLUGIN_COND "!fno-use-linker-plugin:%{!fno-lto"
766 #define PLUGIN_COND_CLOSE "}"
768 /* The linker used has limited plugin support, use LTO plugin with explicit
769 -fuse-linker-plugin. */
770 #define PLUGIN_COND "fuse-linker-plugin"
771 #define PLUGIN_COND_CLOSE ""
773 #define LINK_PLUGIN_SPEC \
775 -plugin %(linker_plugin_file) \
776 -plugin-opt=%(lto_wrapper) \
777 -plugin-opt=-fresolution=%u.res \
778 %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \
781 /* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */
782 #define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\
783 %e-fuse-linker-plugin is not supported in this configuration}"
786 /* Linker command line options for -fsanitize= early on the command line. */
787 #ifndef SANITIZER_EARLY_SPEC
788 #define SANITIZER_EARLY_SPEC "\
789 %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_EARLY_SPEC "} \
790 %{%:sanitize(thread):" LIBTSAN_EARLY_SPEC "} \
791 %{%:sanitize(leak):" LIBLSAN_EARLY_SPEC "}}}"
794 /* Linker command line options for -fsanitize= late on the command line. */
795 #ifndef SANITIZER_SPEC
796 #define SANITIZER_SPEC "\
797 %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_SPEC "\
798 %{static:%ecannot specify -static with -fsanitize=address}}\
799 %{%:sanitize(thread):" LIBTSAN_SPEC "\
800 %{static:%ecannot specify -static with -fsanitize=thread}}\
801 %{%:sanitize(undefined):" LIBUBSAN_SPEC "}\
802 %{%:sanitize(leak):" LIBLSAN_SPEC "}}}"
805 /* This is the spec to use, once the code for creating the vtable
806 verification runtime library, libvtv.so, has been created. Currently
807 the vtable verification runtime functions are in libstdc++, so we use
808 the spec just below this one. */
809 #ifndef VTABLE_VERIFICATION_SPEC
810 #define VTABLE_VERIFICATION_SPEC "\
811 %{!nostdlib:%{fvtable-verify=std: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}\
812 %{fvtable-verify=preinit: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}}"
819 /* -u* was put back because both BSD and SysV seem to support it. */
820 /* %{static:} simply prevents an error message if the target machine
821 doesn't handle -static. */
822 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
823 scripts which exist in user specified directories, or in standard
825 /* We pass any -flto flags on to the linker, which is expected
826 to understand them. In practice, this means it had better be collect2. */
827 /* %{e*} includes -export-dynamic; see comment in common.opt. */
828 #ifndef LINK_COMMAND_SPEC
829 #define LINK_COMMAND_SPEC "\
830 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
833 "%{flto|flto=*:%<fcompare-debug*} \
834 %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \
835 "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
836 "%X %{o*} %{e*} %{N} %{n} %{r}\
837 %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}} " VTABLE_VERIFICATION_SPEC " \
838 %{static:} %{L*} %(mfwrap) %(link_libgcc) " SANITIZER_EARLY_SPEC " %o\
840 %{fopenacc|fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}\
841 %{fcilkplus:%:include(libcilkrts.spec)%(link_cilkrts)}\
842 %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
843 %(mflib) " STACK_SPLIT_SPEC "\
844 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \
845 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
846 %{!nostdlib:%{!nostartfiles:%E}} %{T*} }}}}}}"
849 #ifndef LINK_LIBGCC_SPEC
850 /* Generate -L options for startfile prefix list. */
851 # define LINK_LIBGCC_SPEC "%D"
854 #ifndef STARTFILE_PREFIX_SPEC
855 # define STARTFILE_PREFIX_SPEC ""
859 # define SYSROOT_SPEC "--sysroot=%R"
862 #ifndef SYSROOT_SUFFIX_SPEC
863 # define SYSROOT_SUFFIX_SPEC ""
866 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
867 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
870 static const char *asm_debug
= ASM_DEBUG_SPEC
;
871 static const char *cpp_spec
= CPP_SPEC
;
872 static const char *cc1_spec
= CC1_SPEC
;
873 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
874 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
875 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
876 static const char *asm_spec
= ASM_SPEC
;
877 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
878 static const char *link_spec
= LINK_SPEC
;
879 static const char *lib_spec
= LIB_SPEC
;
880 static const char *link_gomp_spec
= "";
881 static const char *libgcc_spec
= LIBGCC_SPEC
;
882 static const char *endfile_spec
= ENDFILE_SPEC
;
883 static const char *startfile_spec
= STARTFILE_SPEC
;
884 static const char *linker_name_spec
= LINKER_NAME
;
885 static const char *linker_plugin_file_spec
= "";
886 static const char *lto_wrapper_spec
= "";
887 static const char *lto_gcc_spec
= "";
888 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
889 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
890 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
891 static const char *sysroot_spec
= SYSROOT_SPEC
;
892 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
893 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
894 static const char *self_spec
= "";
896 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
897 There should be no need to override these in target dependent files,
898 but we need to copy them to the specs file so that newer versions
899 of the GCC driver can correctly drive older tool chains with the
900 appropriate -B options. */
902 /* When cpplib handles traditional preprocessing, get rid of this, and
903 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
904 that we default the front end language better. */
905 static const char *trad_capable_cpp
=
906 "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}";
908 /* We don't wrap .d files in %W{} since a missing .d file, and
909 therefore no dependency entry, confuses make into thinking a .o
910 file that happens to exist is up-to-date. */
911 static const char *cpp_unique_options
=
912 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
913 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
914 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
915 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
916 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
917 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
918 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
919 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
922 /* This contains cpp options which are common with cc1_options and are passed
923 only when preprocessing only to avoid duplication. We pass the cc1 spec
924 options to the preprocessor so that it the cc1 spec may manipulate
925 options used to set target flags. Those special target flags settings may
926 in turn cause preprocessor symbols to be defined specially. */
927 static const char *cpp_options
=
928 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
929 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
930 %{undef} %{save-temps*:-fpch-preprocess}";
932 /* This contains cpp options which are not passed when the preprocessor
933 output will be used by another program. */
934 static const char *cpp_debug_options
= "%{d*}";
936 /* NB: This is shared amongst all front-ends, except for Ada. */
937 static const char *cc1_options
=
938 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
939 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
940 %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\
941 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
942 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
943 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
944 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
945 %{Qn:-fno-ident} %{Qy:} %{-help:--help}\
946 %{-target-help:--target-help}\
947 %{-version:--version}\
948 %{-help=*:--help=%*}\
949 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
950 %{fsyntax-only:-o %j} %{-param*}\
951 %{coverage:-fprofile-arcs -ftest-coverage}";
953 static const char *asm_options
=
954 "%{-target-help:%:print-asm-header()} "
956 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
957 to the assembler equivalents. */
958 "%{v} %{w:-W} %{I*} "
960 ASM_COMPRESS_DEBUG_SPEC
961 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
963 static const char *invoke_as
=
964 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
966 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
967 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
971 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
972 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
976 /* Some compilers have limits on line lengths, and the multilib_select
977 and/or multilib_matches strings can be very long, so we build them at
979 static struct obstack multilib_obstack
;
980 static const char *multilib_select
;
981 static const char *multilib_matches
;
982 static const char *multilib_defaults
;
983 static const char *multilib_exclusions
;
984 static const char *multilib_reuse
;
986 /* Check whether a particular argument is a default argument. */
988 #ifndef MULTILIB_DEFAULTS
989 #define MULTILIB_DEFAULTS { "" }
992 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
994 #ifndef DRIVER_SELF_SPECS
995 #define DRIVER_SELF_SPECS ""
998 /* Linking to libgomp implies pthreads. This is particularly important
999 for targets that use different start files and suchlike. */
1000 #ifndef GOMP_SELF_SPECS
1001 #define GOMP_SELF_SPECS "%{fopenacc|fopenmp|ftree-parallelize-loops=*: " \
1005 /* Likewise for -fgnu-tm. */
1006 #ifndef GTM_SELF_SPECS
1007 #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}"
1010 /* Likewise for -fcilkplus. */
1011 #ifndef CILK_SELF_SPECS
1012 #define CILK_SELF_SPECS "%{fcilkplus: -pthread}"
1015 static const char *const driver_self_specs
[] = {
1016 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
1017 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
, GTM_SELF_SPECS
,
1021 #ifndef OPTION_DEFAULT_SPECS
1022 #define OPTION_DEFAULT_SPECS { "", "" }
1031 static const struct default_spec
1032 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
1036 struct user_specs
*next
;
1037 const char *filename
;
1040 static struct user_specs
*user_specs_head
, *user_specs_tail
;
1043 /* Record the mapping from file suffixes for compilation specs. */
1047 const char *suffix
; /* Use this compiler for input files
1048 whose names end in this suffix. */
1050 const char *spec
; /* To use this compiler, run this spec. */
1052 const char *cpp_spec
; /* If non-NULL, substitute this spec
1053 for `%C', rather than the usual
1055 const int combinable
; /* If nonzero, compiler can deal with
1056 multiple source files at once (IMA). */
1057 const int needs_preprocessing
; /* If nonzero, source files need to
1058 be run through a preprocessor. */
1061 /* Pointer to a vector of `struct compiler' that gives the spec for
1062 compiling a file, based on its suffix.
1063 A file that does not end in any of these suffixes will be passed
1064 unchanged to the loader and nothing else will be done to it.
1066 An entry containing two 0s is used to terminate the vector.
1068 If multiple entries match a file, the last matching one is used. */
1070 static struct compiler
*compilers
;
1072 /* Number of entries in `compilers', not counting the null terminator. */
1074 static int n_compilers
;
1076 /* The default list of file name suffixes and their compilation specs. */
1078 static const struct compiler default_compilers
[] =
1080 /* Add lists of suffixes of known languages here. If those languages
1081 were not present when we built the driver, we will hit these copies
1082 and be given a more meaningful error than "file not used since
1083 linking is not done". */
1084 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1085 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1086 {".mii", "#Objective-C++", 0, 0, 0},
1087 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1088 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1089 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1090 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1091 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1092 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1093 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1094 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1095 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1096 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1097 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1098 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1099 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1100 {".r", "#Ratfor", 0, 0, 0},
1101 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
1102 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
1103 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
1104 {".go", "#Go", 0, 1, 0},
1105 /* Next come the entries for C. */
1106 {".c", "@c", 0, 0, 1},
1108 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1109 external preprocessor if -save-temps is given. */
1110 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1113 %eGNU C no longer supports -traditional without -E}\
1114 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1115 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1116 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1118 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1119 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1120 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
1122 "%{!E:%e-E or -x required when input is from standard input}\
1123 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1124 {".h", "@c-header", 0, 0, 0},
1126 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1127 external preprocessor if -save-temps is given. */
1128 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1130 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1131 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1132 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1134 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
1135 %W{o*:--output-pch=%*}}%V}\
1136 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1137 cc1 %(cpp_unique_options) %(cc1_options)\
1138 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
1139 %W{o*:--output-pch=%*}}%V}}}}}}", 0, 0, 0},
1140 {".i", "@cpp-output", 0, 0, 0},
1142 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
1143 {".s", "@assembler", 0, 0, 0},
1145 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
1146 {".sx", "@assembler-with-cpp", 0, 0, 0},
1147 {".S", "@assembler-with-cpp", 0, 0, 0},
1148 {"@assembler-with-cpp",
1149 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1150 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1151 %{E|M|MM:%(cpp_debug_options)}\
1152 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1153 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1155 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1156 %{E|M|MM:%(cpp_debug_options)}\
1157 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1158 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1163 /* Mark end of table. */
1167 /* Number of elements in default_compilers, not counting the terminator. */
1169 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1171 typedef char *char_p
; /* For DEF_VEC_P. */
1173 /* A vector of options to give to the linker.
1174 These options are accumulated by %x,
1175 and substituted into the linker command with %X. */
1176 static vec
<char_p
> linker_options
;
1178 /* A vector of options to give to the assembler.
1179 These options are accumulated by -Wa,
1180 and substituted into the assembler command with %Y. */
1181 static vec
<char_p
> assembler_options
;
1183 /* A vector of options to give to the preprocessor.
1184 These options are accumulated by -Wp,
1185 and substituted into the preprocessor command with %Z. */
1186 static vec
<char_p
> preprocessor_options
;
1189 skip_whitespace (char *p
)
1193 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1194 be considered whitespace. */
1195 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1197 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1211 /* Structures to keep track of prefixes to try when looking for files. */
1215 const char *prefix
; /* String to prepend to the path. */
1216 struct prefix_list
*next
; /* Next in linked list. */
1217 int require_machine_suffix
; /* Don't use without machine_suffix. */
1218 /* 2 means try both machine_suffix and just_machine_suffix. */
1219 int priority
; /* Sort key - priority within list. */
1220 int os_multilib
; /* 1 if OS multilib scheme should be used,
1221 0 for GCC multilib scheme. */
1226 struct prefix_list
*plist
; /* List of prefixes to try */
1227 int max_len
; /* Max length of a prefix in PLIST */
1228 const char *name
; /* Name of this list (used in config stuff) */
1231 /* List of prefixes to try when looking for executables. */
1233 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1235 /* List of prefixes to try when looking for startup (crt0) files. */
1237 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1239 /* List of prefixes to try when looking for include files. */
1241 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1243 /* Suffix to attach to directories searched for commands.
1244 This looks like `MACHINE/VERSION/'. */
1246 static const char *machine_suffix
= 0;
1248 /* Suffix to attach to directories searched for commands.
1249 This is just `MACHINE/'. */
1251 static const char *just_machine_suffix
= 0;
1253 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1255 static const char *gcc_exec_prefix
;
1257 /* Adjusted value of standard_libexec_prefix. */
1259 static const char *gcc_libexec_prefix
;
1261 /* Default prefixes to attach to command names. */
1263 #ifndef STANDARD_STARTFILE_PREFIX_1
1264 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1266 #ifndef STANDARD_STARTFILE_PREFIX_2
1267 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1270 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1271 #undef MD_EXEC_PREFIX
1272 #undef MD_STARTFILE_PREFIX
1273 #undef MD_STARTFILE_PREFIX_1
1276 /* If no prefixes defined, use the null string, which will disable them. */
1277 #ifndef MD_EXEC_PREFIX
1278 #define MD_EXEC_PREFIX ""
1280 #ifndef MD_STARTFILE_PREFIX
1281 #define MD_STARTFILE_PREFIX ""
1283 #ifndef MD_STARTFILE_PREFIX_1
1284 #define MD_STARTFILE_PREFIX_1 ""
1287 /* These directories are locations set at configure-time based on the
1288 --prefix option provided to configure. Their initializers are
1289 defined in Makefile.in. These paths are not *directly* used when
1290 gcc_exec_prefix is set because, in that case, we know where the
1291 compiler has been installed, and use paths relative to that
1292 location instead. */
1293 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1294 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1295 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1296 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1298 /* For native compilers, these are well-known paths containing
1299 components that may be provided by the system. For cross
1300 compilers, these paths are not used. */
1301 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1302 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1303 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1304 static const char *const standard_startfile_prefix_1
1305 = STANDARD_STARTFILE_PREFIX_1
;
1306 static const char *const standard_startfile_prefix_2
1307 = STANDARD_STARTFILE_PREFIX_2
;
1309 /* A relative path to be used in finding the location of tools
1310 relative to the driver. */
1311 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1313 /* A prefix to be used when this is an accelerator compiler. */
1314 static const char *const accel_dir_suffix
= ACCEL_DIR_SUFFIX
;
1316 /* Subdirectory to use for locating libraries. Set by
1317 set_multilib_dir based on the compilation options. */
1319 static const char *multilib_dir
;
1321 /* Subdirectory to use for locating libraries in OS conventions. Set by
1322 set_multilib_dir based on the compilation options. */
1324 static const char *multilib_os_dir
;
1326 /* Subdirectory to use for locating libraries in multiarch conventions. Set by
1327 set_multilib_dir based on the compilation options. */
1329 static const char *multiarch_dir
;
1331 /* Structure to keep track of the specs that have been defined so far.
1332 These are accessed using %(specname) in a compiler or link
1337 /* The following 2 fields must be first */
1338 /* to allow EXTRA_SPECS to be initialized */
1339 const char *name
; /* name of the spec. */
1340 const char *ptr
; /* available ptr if no static pointer */
1342 /* The following fields are not initialized */
1343 /* by EXTRA_SPECS */
1344 const char **ptr_spec
; /* pointer to the spec itself. */
1345 struct spec_list
*next
; /* Next spec in linked list. */
1346 int name_len
; /* length of the name */
1347 bool user_p
; /* whether string come from file spec. */
1348 bool alloc_p
; /* whether string was allocated */
1351 #define INIT_STATIC_SPEC(NAME,PTR) \
1352 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, false, false }
1354 /* List of statically defined specs. */
1355 static struct spec_list static_specs
[] =
1357 INIT_STATIC_SPEC ("asm", &asm_spec
),
1358 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1359 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1360 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1361 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1362 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1363 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1364 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1365 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1366 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1367 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1368 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1369 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1370 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1371 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1372 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1373 INIT_STATIC_SPEC ("link", &link_spec
),
1374 INIT_STATIC_SPEC ("lib", &lib_spec
),
1375 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1376 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1377 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1378 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1379 INIT_STATIC_SPEC ("version", &compiler_version
),
1380 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1381 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1382 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1383 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1384 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1385 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1386 INIT_STATIC_SPEC ("multilib_reuse", &multilib_reuse
),
1387 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1388 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1389 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1390 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1391 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1392 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1393 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1394 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1395 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1396 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1397 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1398 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1399 INIT_STATIC_SPEC ("self_spec", &self_spec
),
1402 #ifdef EXTRA_SPECS /* additional specs needed */
1403 /* Structure to keep track of just the first two args of a spec_list.
1404 That is all that the EXTRA_SPECS macro gives us. */
1407 const char *const name
;
1408 const char *const ptr
;
1411 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1412 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1415 /* List of dynamically allocates specs that have been defined so far. */
1417 static struct spec_list
*specs
= (struct spec_list
*) 0;
1419 /* List of static spec functions. */
1421 static const struct spec_function static_spec_functions
[] =
1423 { "getenv", getenv_spec_function
},
1424 { "if-exists", if_exists_spec_function
},
1425 { "if-exists-else", if_exists_else_spec_function
},
1426 { "sanitize", sanitize_spec_function
},
1427 { "replace-outfile", replace_outfile_spec_function
},
1428 { "remove-outfile", remove_outfile_spec_function
},
1429 { "version-compare", version_compare_spec_function
},
1430 { "include", include_spec_function
},
1431 { "find-file", find_file_spec_function
},
1432 { "find-plugindir", find_plugindir_spec_function
},
1433 { "print-asm-header", print_asm_header_spec_function
},
1434 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1435 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1436 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1437 { "pass-through-libs", pass_through_libs_spec_func
},
1438 { "replace-extension", replace_extension_spec_func
},
1439 #ifdef EXTRA_SPEC_FUNCTIONS
1440 EXTRA_SPEC_FUNCTIONS
1445 static int processing_spec_function
;
1447 /* Add appropriate libgcc specs to OBSTACK, taking into account
1448 various permutations of -shared-libgcc, -shared, and such. */
1450 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1452 #ifndef USE_LD_AS_NEEDED
1453 #define USE_LD_AS_NEEDED 0
1457 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1458 const char *static_name
, const char *eh_name
)
1462 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1463 "%{!static:%{!static-libgcc:"
1464 #if USE_LD_AS_NEEDED
1465 "%{!shared-libgcc:",
1466 static_name
, " " LD_AS_NEEDED_OPTION
" ",
1467 shared_name
, " " LD_NO_AS_NEEDED_OPTION
1470 shared_name
, "%{!shared: ", static_name
, "}"
1474 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1475 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1479 "%{shared-libgcc:", shared_name
, "}"
1480 "%{!shared-libgcc:", static_name
, "}"
1483 "%{shared:", shared_name
, "}"
1488 obstack_grow (obstack
, buf
, strlen (buf
));
1491 #endif /* ENABLE_SHARED_LIBGCC */
1493 /* Initialize the specs lookup routines. */
1498 struct spec_list
*next
= (struct spec_list
*) 0;
1499 struct spec_list
*sl
= (struct spec_list
*) 0;
1503 return; /* Already initialized. */
1506 fnotice (stderr
, "Using built-in specs.\n");
1509 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1511 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1513 sl
= &extra_specs
[i
];
1514 sl
->name
= extra_specs_1
[i
].name
;
1515 sl
->ptr
= extra_specs_1
[i
].ptr
;
1517 sl
->name_len
= strlen (sl
->name
);
1518 sl
->ptr_spec
= &sl
->ptr
;
1523 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1525 sl
= &static_specs
[i
];
1530 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1531 /* ??? If neither -shared-libgcc nor --static-libgcc was
1532 seen, then we should be making an educated guess. Some proposed
1533 heuristics for ELF include:
1535 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1536 program will be doing dynamic loading, which will likely
1537 need the shared libgcc.
1539 (2) If "-ldl", then it's also a fair bet that we're doing
1542 (3) For each ET_DYN we're linking against (either through -lfoo
1543 or /some/path/foo.so), check to see whether it or one of
1544 its dependencies depends on a shared libgcc.
1548 If the runtime is fixed to look for program headers instead
1549 of calling __register_frame_info at all, for each object,
1550 use the shared libgcc if any EH symbol referenced.
1552 If crtstuff is fixed to not invoke __register_frame_info
1553 automatically, for each object, use the shared libgcc if
1554 any non-empty unwind section found.
1556 Doing any of this probably requires invoking an external program to
1557 do the actual object file scanning. */
1559 const char *p
= libgcc_spec
;
1562 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1563 when given the proper command line arguments. */
1566 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1568 init_gcc_specs (&obstack
,
1570 #ifdef USE_LIBUNWIND_EXCEPTIONS
1576 #ifdef USE_LIBUNWIND_EXCEPTIONS
1577 # ifdef HAVE_LD_STATIC_DYNAMIC
1578 " %{!static:" LD_STATIC_OPTION
"} -lunwind"
1579 " %{!static:" LD_DYNAMIC_OPTION
"}"
1589 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1591 /* Ug. We don't know shared library extensions. Hope that
1592 systems that use this form don't do shared libraries. */
1593 init_gcc_specs (&obstack
,
1597 #ifdef USE_LIBUNWIND_EXCEPTIONS
1606 obstack_1grow (&obstack
, *p
);
1607 in_sep
= (*p
== ' ');
1612 obstack_1grow (&obstack
, '\0');
1613 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1616 #ifdef USE_AS_TRADITIONAL_FORMAT
1617 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1619 static const char tf
[] = "--traditional-format ";
1620 obstack_grow (&obstack
, tf
, sizeof (tf
) - 1);
1621 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1622 asm_spec
= XOBFINISH (&obstack
, const char *);
1626 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \
1627 defined LINKER_HASH_STYLE
1628 # ifdef LINK_BUILDID_SPEC
1629 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1630 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof (LINK_BUILDID_SPEC
) - 1);
1632 # ifdef LINK_EH_SPEC
1633 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1634 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof (LINK_EH_SPEC
) - 1);
1636 # ifdef LINKER_HASH_STYLE
1637 /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had
1640 static const char hash_style
[] = "--hash-style=";
1641 obstack_grow (&obstack
, hash_style
, sizeof (hash_style
) - 1);
1642 obstack_grow (&obstack
, LINKER_HASH_STYLE
, sizeof (LINKER_HASH_STYLE
) - 1);
1643 obstack_1grow (&obstack
, ' ');
1646 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1647 link_spec
= XOBFINISH (&obstack
, const char *);
1653 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1654 removed; If the spec starts with a + then SPEC is added to the end of the
1658 set_spec (const char *name
, const char *spec
, bool user_p
)
1660 struct spec_list
*sl
;
1661 const char *old_spec
;
1662 int name_len
= strlen (name
);
1665 /* If this is the first call, initialize the statically allocated specs. */
1668 struct spec_list
*next
= (struct spec_list
*) 0;
1669 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1671 sl
= &static_specs
[i
];
1678 /* See if the spec already exists. */
1679 for (sl
= specs
; sl
; sl
= sl
->next
)
1680 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1685 /* Not found - make it. */
1686 sl
= XNEW (struct spec_list
);
1687 sl
->name
= xstrdup (name
);
1688 sl
->name_len
= name_len
;
1689 sl
->ptr_spec
= &sl
->ptr
;
1691 *(sl
->ptr_spec
) = "";
1696 old_spec
= *(sl
->ptr_spec
);
1697 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1698 ? concat (old_spec
, spec
+ 1, NULL
)
1703 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1706 /* Free the old spec. */
1707 if (old_spec
&& sl
->alloc_p
)
1708 free (CONST_CAST (char *, old_spec
));
1710 sl
->user_p
= user_p
;
1714 /* Accumulate a command (program name and args), and run it. */
1716 typedef const char *const_char_p
; /* For DEF_VEC_P. */
1718 /* Vector of pointers to arguments in the current line of specifications. */
1720 static vec
<const_char_p
> argbuf
;
1722 /* Were the options -c, -S or -E passed. */
1723 static int have_c
= 0;
1725 /* Was the option -o passed. */
1726 static int have_o
= 0;
1728 /* Pointer to output file name passed in with -o. */
1729 static const char *output_file
= 0;
1731 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1732 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1735 static struct temp_name
{
1736 const char *suffix
; /* suffix associated with the code. */
1737 int length
; /* strlen (suffix). */
1738 int unique
; /* Indicates whether %g or %u/%U was used. */
1739 const char *filename
; /* associated filename. */
1740 int filename_length
; /* strlen (filename). */
1741 struct temp_name
*next
;
1744 /* Number of commands executed so far. */
1746 static int execution_count
;
1748 /* Number of commands that exited with a signal. */
1750 static int signal_count
;
1752 /* Allocate the argument vector. */
1760 /* Clear out the vector of arguments (after a command is executed). */
1765 argbuf
.truncate (0);
1768 /* Add one argument to the vector at the end.
1769 This is done when a space is seen or at the end of the line.
1770 If DELETE_ALWAYS is nonzero, the arg is a filename
1771 and the file should be deleted eventually.
1772 If DELETE_FAILURE is nonzero, the arg is a filename
1773 and the file should be deleted if this compilation fails. */
1776 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1778 argbuf
.safe_push (arg
);
1780 if (delete_always
|| delete_failure
)
1783 /* If the temporary file we should delete is specified as
1784 part of a joined argument extract the filename. */
1786 && (p
= strrchr (arg
, '=')))
1788 record_temp_file (arg
, delete_always
, delete_failure
);
1792 /* Load specs from a file name named FILENAME, replacing occurrences of
1793 various different types of line-endings, \r\n, \n\r and just \r, with
1797 load_specs (const char *filename
)
1801 struct stat statbuf
;
1808 fnotice (stderr
, "Reading specs from %s\n", filename
);
1810 /* Open and stat the file. */
1811 desc
= open (filename
, O_RDONLY
, 0);
1813 pfatal_with_name (filename
);
1814 if (stat (filename
, &statbuf
) < 0)
1815 pfatal_with_name (filename
);
1817 /* Read contents of file into BUFFER. */
1818 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
1819 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1821 pfatal_with_name (filename
);
1822 buffer
[readlen
] = 0;
1825 specs
= XNEWVEC (char, readlen
+ 1);
1827 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1833 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1835 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1849 /* Read compilation specs from a file named FILENAME,
1850 replacing the default ones.
1852 A suffix which starts with `*' is a definition for
1853 one of the machine-specific sub-specs. The "suffix" should be
1854 *asm, *cc1, *cpp, *link, *startfile, etc.
1855 The corresponding spec is stored in asm_spec, etc.,
1856 rather than in the `compilers' vector.
1858 Anything invalid in the file is a fatal error. */
1861 read_specs (const char *filename
, bool main_p
, bool user_p
)
1866 buffer
= load_specs (filename
);
1868 /* Scan BUFFER for specs, putting them in the vector. */
1874 char *in
, *out
, *p1
, *p2
, *p3
;
1876 /* Advance P in BUFFER to the next nonblank nocomment line. */
1877 p
= skip_whitespace (p
);
1881 /* Is this a special command that starts with '%'? */
1882 /* Don't allow this for the main specs file, since it would
1883 encourage people to overwrite it. */
1884 if (*p
== '%' && !main_p
)
1887 while (*p
&& *p
!= '\n')
1893 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1894 && (p1
[sizeof "%include" - 1] == ' '
1895 || p1
[sizeof "%include" - 1] == '\t'))
1899 p1
+= sizeof ("%include");
1900 while (*p1
== ' ' || *p1
== '\t')
1903 if (*p1
++ != '<' || p
[-2] != '>')
1904 fatal_error (input_location
,
1905 "specs %%include syntax malformed after "
1907 (long) (p1
- buffer
+ 1));
1910 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1911 read_specs (new_filename
? new_filename
: p1
, false, user_p
);
1914 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1915 && (p1
[sizeof "%include_noerr" - 1] == ' '
1916 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1920 p1
+= sizeof "%include_noerr";
1921 while (*p1
== ' ' || *p1
== '\t')
1924 if (*p1
++ != '<' || p
[-2] != '>')
1925 fatal_error (input_location
,
1926 "specs %%include syntax malformed after "
1928 (long) (p1
- buffer
+ 1));
1931 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1933 read_specs (new_filename
, false, user_p
);
1934 else if (verbose_flag
)
1935 fnotice (stderr
, "could not find specs file %s\n", p1
);
1938 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1939 && (p1
[sizeof "%rename" - 1] == ' '
1940 || p1
[sizeof "%rename" - 1] == '\t'))
1943 struct spec_list
*sl
;
1944 struct spec_list
*newsl
;
1946 /* Get original name. */
1947 p1
+= sizeof "%rename";
1948 while (*p1
== ' ' || *p1
== '\t')
1951 if (! ISALPHA ((unsigned char) *p1
))
1952 fatal_error (input_location
,
1953 "specs %%rename syntax malformed after "
1955 (long) (p1
- buffer
));
1958 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1961 if (*p2
!= ' ' && *p2
!= '\t')
1962 fatal_error (input_location
,
1963 "specs %%rename syntax malformed after "
1965 (long) (p2
- buffer
));
1969 while (*p2
== ' ' || *p2
== '\t')
1972 if (! ISALPHA ((unsigned char) *p2
))
1973 fatal_error (input_location
,
1974 "specs %%rename syntax malformed after "
1976 (long) (p2
- buffer
));
1978 /* Get new spec name. */
1980 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
1984 fatal_error (input_location
,
1985 "specs %%rename syntax malformed after "
1987 (long) (p3
- buffer
));
1990 for (sl
= specs
; sl
; sl
= sl
->next
)
1991 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1995 fatal_error (input_location
,
1996 "specs %s spec was not found to be renamed", p1
);
1998 if (strcmp (p1
, p2
) == 0)
2001 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2002 if (strcmp (newsl
->name
, p2
) == 0)
2003 fatal_error (input_location
,
2004 "%s: attempt to rename spec %qs to "
2005 "already defined spec %qs",
2010 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
2012 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
2016 set_spec (p2
, *(sl
->ptr_spec
), user_p
);
2018 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2020 *(sl
->ptr_spec
) = "";
2025 fatal_error (input_location
,
2026 "specs unknown %% command after %ld characters",
2027 (long) (p1
- buffer
));
2030 /* Find the colon that should end the suffix. */
2032 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2035 /* The colon shouldn't be missing. */
2037 fatal_error (input_location
,
2038 "specs file malformed after %ld characters",
2039 (long) (p1
- buffer
));
2041 /* Skip back over trailing whitespace. */
2043 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2046 /* Copy the suffix to a string. */
2047 suffix
= save_string (p
, p2
- p
);
2048 /* Find the next line. */
2049 p
= skip_whitespace (p1
+ 1);
2051 fatal_error (input_location
,
2052 "specs file malformed after %ld characters",
2053 (long) (p
- buffer
));
2056 /* Find next blank line or end of string. */
2057 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2060 /* Specs end at the blank line and do not include the newline. */
2061 spec
= save_string (p
, p1
- p
);
2064 /* Delete backslash-newline sequences from the spec. */
2069 if (in
[0] == '\\' && in
[1] == '\n')
2071 else if (in
[0] == '#')
2072 while (*in
&& *in
!= '\n')
2080 if (suffix
[0] == '*')
2082 if (! strcmp (suffix
, "*link_command"))
2083 link_command_spec
= spec
;
2085 set_spec (suffix
+ 1, spec
, user_p
);
2089 /* Add this pair to the vector. */
2091 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2093 compilers
[n_compilers
].suffix
= suffix
;
2094 compilers
[n_compilers
].spec
= spec
;
2096 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2100 link_command_spec
= spec
;
2103 if (link_command_spec
== 0)
2104 fatal_error (input_location
, "spec file has no spec for linking");
2107 /* Record the names of temporary files we tell compilers to write,
2108 and delete them at the end of the run. */
2110 /* This is the common prefix we use to make temp file names.
2111 It is chosen once for each run of this program.
2112 It is substituted into a spec by %g or %j.
2113 Thus, all temp file names contain this prefix.
2114 In practice, all temp file names start with this prefix.
2116 This prefix comes from the envvar TMPDIR if it is defined;
2117 otherwise, from the P_tmpdir macro if that is defined;
2118 otherwise, in /usr/tmp or /tmp;
2119 or finally the current directory if all else fails. */
2121 static const char *temp_filename
;
2123 /* Length of the prefix. */
2125 static int temp_filename_length
;
2127 /* Define the list of temporary files to delete. */
2132 struct temp_file
*next
;
2135 /* Queue of files to delete on success or failure of compilation. */
2136 static struct temp_file
*always_delete_queue
;
2137 /* Queue of files to delete on failure of compilation. */
2138 static struct temp_file
*failure_delete_queue
;
2140 /* Record FILENAME as a file to be deleted automatically.
2141 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2142 otherwise delete it in any case.
2143 FAIL_DELETE nonzero means delete it if a compilation step fails;
2144 otherwise delete it in any case. */
2147 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2149 char *const name
= xstrdup (filename
);
2153 struct temp_file
*temp
;
2154 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2155 if (! filename_cmp (name
, temp
->name
))
2158 temp
= XNEW (struct temp_file
);
2159 temp
->next
= always_delete_queue
;
2161 always_delete_queue
= temp
;
2168 struct temp_file
*temp
;
2169 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2170 if (! filename_cmp (name
, temp
->name
))
2176 temp
= XNEW (struct temp_file
);
2177 temp
->next
= failure_delete_queue
;
2179 failure_delete_queue
= temp
;
2185 /* Delete all the temporary files whose names we previously recorded. */
2187 #ifndef DELETE_IF_ORDINARY
2188 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2191 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2192 if (unlink (NAME) < 0) \
2194 perror_with_name (NAME); \
2199 delete_if_ordinary (const char *name
)
2205 printf ("Delete %s? (y or n) ", name
);
2209 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2212 if (i
== 'y' || i
== 'Y')
2214 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2218 delete_temp_files (void)
2220 struct temp_file
*temp
;
2222 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2223 delete_if_ordinary (temp
->name
);
2224 always_delete_queue
= 0;
2227 /* Delete all the files to be deleted on error. */
2230 delete_failure_queue (void)
2232 struct temp_file
*temp
;
2234 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2235 delete_if_ordinary (temp
->name
);
2239 clear_failure_queue (void)
2241 failure_delete_queue
= 0;
2244 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2246 If DO_MULTI is true iterate over the paths twice, first with multilib
2247 suffix then without, otherwise iterate over the paths once without
2248 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2249 to avoid visiting the same path twice, but we could do better. For
2250 instance, /usr/lib/../lib is considered different from /usr/lib.
2251 At least EXTRA_SPACE chars past the end of the path passed to
2252 CALLBACK are available for use by the callback.
2253 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2255 Returns the value returned by CALLBACK. */
2258 for_each_path (const struct path_prefix
*paths
,
2261 void *(*callback
) (char *, void *),
2262 void *callback_info
)
2264 struct prefix_list
*pl
;
2265 const char *multi_dir
= NULL
;
2266 const char *multi_os_dir
= NULL
;
2267 const char *multiarch_suffix
= NULL
;
2268 const char *multi_suffix
;
2269 const char *just_multi_suffix
;
2272 bool skip_multi_dir
= false;
2273 bool skip_multi_os_dir
= false;
2275 multi_suffix
= machine_suffix
;
2276 just_multi_suffix
= just_machine_suffix
;
2277 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2279 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2280 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2281 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2283 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2284 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2286 multiarch_suffix
= concat (multiarch_dir
, dir_separator_str
, NULL
);
2290 size_t multi_dir_len
= 0;
2291 size_t multi_os_dir_len
= 0;
2292 size_t multiarch_len
= 0;
2294 size_t just_suffix_len
;
2298 multi_dir_len
= strlen (multi_dir
);
2300 multi_os_dir_len
= strlen (multi_os_dir
);
2301 if (multiarch_suffix
)
2302 multiarch_len
= strlen (multiarch_suffix
);
2303 suffix_len
= strlen (multi_suffix
);
2304 just_suffix_len
= strlen (just_multi_suffix
);
2308 len
= paths
->max_len
+ extra_space
+ 1;
2309 len
+= MAX (MAX (suffix_len
, multi_os_dir_len
), multiarch_len
);
2310 path
= XNEWVEC (char, len
);
2313 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2315 len
= strlen (pl
->prefix
);
2316 memcpy (path
, pl
->prefix
, len
);
2318 #if 0 /* MACHINE/VERSION isn't used anywhere DragonFly */
2319 /* Look first in MACHINE/VERSION subdirectory. */
2320 if (!skip_multi_dir
)
2322 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2323 ret
= callback (path
, callback_info
);
2329 /* Some paths are tried with just the machine (ie. target)
2330 subdir. This is used for finding as, ld, etc. */
2332 && pl
->require_machine_suffix
== 2)
2334 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2335 ret
= callback (path
, callback_info
);
2340 /* Now try the multiarch path. */
2342 && !pl
->require_machine_suffix
&& multiarch_dir
)
2344 memcpy (path
+ len
, multiarch_suffix
, multiarch_len
+ 1);
2345 ret
= callback (path
, callback_info
);
2350 /* Now try the base path. */
2351 if (!pl
->require_machine_suffix
2352 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2354 const char *this_multi
;
2355 size_t this_multi_len
;
2357 if (pl
->os_multilib
)
2359 this_multi
= multi_os_dir
;
2360 this_multi_len
= multi_os_dir_len
;
2364 this_multi
= multi_dir
;
2365 this_multi_len
= multi_dir_len
;
2369 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2373 ret
= callback (path
, callback_info
);
2381 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2384 /* Run through the paths again, this time without multilibs.
2385 Don't repeat any we have already seen. */
2388 free (CONST_CAST (char *, multi_dir
));
2390 free (CONST_CAST (char *, multi_suffix
));
2391 multi_suffix
= machine_suffix
;
2392 free (CONST_CAST (char *, just_multi_suffix
));
2393 just_multi_suffix
= just_machine_suffix
;
2396 skip_multi_dir
= true;
2399 free (CONST_CAST (char *, multi_os_dir
));
2400 multi_os_dir
= NULL
;
2403 skip_multi_os_dir
= true;
2408 free (CONST_CAST (char *, multi_dir
));
2409 free (CONST_CAST (char *, multi_suffix
));
2410 free (CONST_CAST (char *, just_multi_suffix
));
2413 free (CONST_CAST (char *, multi_os_dir
));
2419 /* Callback for build_search_list. Adds path to obstack being built. */
2421 struct add_to_obstack_info
{
2428 add_to_obstack (char *path
, void *data
)
2430 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2432 if (info
->check_dir
&& !is_directory (path
, false))
2435 if (!info
->first_time
)
2436 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2438 obstack_grow (info
->ob
, path
, strlen (path
));
2440 info
->first_time
= false;
2444 /* Add or change the value of an environment variable, outputting the
2445 change to standard error if in verbose mode. */
2447 xputenv (const char *string
)
2450 fnotice (stderr
, "%s\n", string
);
2451 putenv (CONST_CAST (char *, string
));
2454 /* Build a list of search directories from PATHS.
2455 PREFIX is a string to prepend to the list.
2456 If CHECK_DIR_P is true we ensure the directory exists.
2457 If DO_MULTI is true, multilib paths are output first, then
2459 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2460 It is also used by the --print-search-dirs flag. */
2463 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2464 bool check_dir
, bool do_multi
)
2466 struct add_to_obstack_info info
;
2468 info
.ob
= &collect_obstack
;
2469 info
.check_dir
= check_dir
;
2470 info
.first_time
= true;
2472 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2473 obstack_1grow (&collect_obstack
, '=');
2475 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2477 obstack_1grow (&collect_obstack
, '\0');
2478 return XOBFINISH (&collect_obstack
, char *);
2481 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2485 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2488 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2491 /* Check whether NAME can be accessed in MODE. This is like access,
2492 except that it never considers directories to be executable. */
2495 access_check (const char *name
, int mode
)
2501 if (stat (name
, &st
) < 0
2502 || S_ISDIR (st
.st_mode
))
2506 return access (name
, mode
);
2509 /* Callback for find_a_file. Appends the file name to the directory
2510 path. If the resulting file exists in the right mode, return the
2511 full pathname to the file. */
2513 struct file_at_path_info
{
2522 file_at_path (char *path
, void *data
)
2524 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2525 size_t len
= strlen (path
);
2527 memcpy (path
+ len
, info
->name
, info
->name_len
);
2528 len
+= info
->name_len
;
2530 /* Some systems have a suffix for executable files.
2531 So try appending that first. */
2532 if (info
->suffix_len
)
2534 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2535 if (access_check (path
, info
->mode
) == 0)
2540 if (access_check (path
, info
->mode
) == 0)
2546 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2547 access to check permissions. If DO_MULTI is true, search multilib
2548 paths then non-multilib paths, otherwise do not search multilib paths.
2549 Return 0 if not found, otherwise return its name, allocated with malloc. */
2552 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2555 struct file_at_path_info info
;
2557 #ifdef DEFAULT_ASSEMBLER
2558 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2559 return xstrdup (DEFAULT_ASSEMBLER
);
2562 #ifdef DEFAULT_LINKER
2563 if (! strcmp (name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2564 return xstrdup (DEFAULT_LINKER
);
2567 /* Determine the filename to execute (special case for absolute paths). */
2569 if (IS_ABSOLUTE_PATH (name
))
2571 if (access (name
, mode
) == 0)
2572 return xstrdup (name
);
2578 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2579 info
.name_len
= strlen (info
.name
);
2580 info
.suffix_len
= strlen (info
.suffix
);
2583 return (char*) for_each_path (pprefix
, do_multi
,
2584 info
.name_len
+ info
.suffix_len
,
2585 file_at_path
, &info
);
2588 /* Ranking of prefixes in the sort list. -B prefixes are put before
2591 enum path_prefix_priority
2593 PREFIX_PRIORITY_B_OPT
,
2594 PREFIX_PRIORITY_LAST
2597 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2598 order according to PRIORITY. Within each PRIORITY, new entries are
2601 If WARN is nonzero, we will warn if no file is found
2602 through this prefix. WARN should point to an int
2603 which will be set to 1 if this entry is used.
2605 COMPONENT is the value to be passed to update_path.
2607 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2608 the complete value of machine_suffix.
2609 2 means try both machine_suffix and just_machine_suffix. */
2612 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2613 const char *component
, /* enum prefix_priority */ int priority
,
2614 int require_machine_suffix
, int os_multilib
)
2616 struct prefix_list
*pl
, **prev
;
2619 for (prev
= &pprefix
->plist
;
2620 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2621 prev
= &(*prev
)->next
)
2624 /* Keep track of the longest prefix. */
2626 prefix
= update_path (prefix
, component
);
2627 len
= strlen (prefix
);
2628 if (len
> pprefix
->max_len
)
2629 pprefix
->max_len
= len
;
2631 pl
= XNEW (struct prefix_list
);
2632 pl
->prefix
= prefix
;
2633 pl
->require_machine_suffix
= require_machine_suffix
;
2634 pl
->priority
= priority
;
2635 pl
->os_multilib
= os_multilib
;
2637 /* Insert after PREV. */
2642 /* Same as add_prefix, but prepending target_system_root to prefix. */
2643 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2645 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2646 const char *component
,
2647 /* enum prefix_priority */ int priority
,
2648 int require_machine_suffix
, int os_multilib
)
2650 if (!IS_ABSOLUTE_PATH (prefix
))
2651 fatal_error (input_location
, "system path %qs is not absolute", prefix
);
2653 if (target_system_root
)
2655 char *sysroot_no_trailing_dir_separator
= xstrdup (target_system_root
);
2656 size_t sysroot_len
= strlen (target_system_root
);
2659 && target_system_root
[sysroot_len
- 1] == DIR_SEPARATOR
)
2660 sysroot_no_trailing_dir_separator
[sysroot_len
- 1] = '\0';
2662 if (target_sysroot_suffix
)
2663 prefix
= concat (sysroot_no_trailing_dir_separator
,
2664 target_sysroot_suffix
, prefix
, NULL
);
2666 prefix
= concat (sysroot_no_trailing_dir_separator
, prefix
, NULL
);
2668 free (sysroot_no_trailing_dir_separator
);
2670 /* We have to override this because GCC's notion of sysroot
2671 moves along with GCC. */
2675 add_prefix (pprefix
, prefix
, component
, priority
,
2676 require_machine_suffix
, os_multilib
);
2679 /* Execute the command specified by the arguments on the current line of spec.
2680 When using pipes, this includes several piped-together commands
2681 with `|' between them.
2683 Return 0 if successful, -1 if failed. */
2689 int n_commands
; /* # of command. */
2691 struct pex_obj
*pex
;
2694 const char *prog
; /* program name. */
2695 const char **argv
; /* vector of args. */
2699 struct command
*commands
; /* each command buffer with above info. */
2701 gcc_assert (!processing_spec_function
);
2705 string
= find_a_file (&exec_prefixes
,
2706 argbuf
[0], X_OK
, false);
2709 insert_wrapper (wrapper_string
);
2712 /* Count # of piped commands. */
2713 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2714 if (strcmp (arg
, "|") == 0)
2717 /* Get storage for each command. */
2718 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2720 /* Split argbuf into its separate piped processes,
2721 and record info about each one.
2722 Also search for the programs that are to be run. */
2724 argbuf
.safe_push (0);
2726 commands
[0].prog
= argbuf
[0]; /* first command. */
2727 commands
[0].argv
= argbuf
.address ();
2729 if (!wrapper_string
)
2731 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2732 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2735 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2736 if (arg
&& strcmp (arg
, "|") == 0)
2737 { /* each command. */
2738 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2739 fatal_error (input_location
, "-pipe not supported");
2741 argbuf
[i
] = 0; /* Termination of
2743 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2744 commands
[n_commands
].argv
2745 = &(argbuf
.address ())[i
+ 1];
2746 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2749 commands
[n_commands
].argv
[0] = string
;
2753 /* If -v, print what we are about to do, and maybe query. */
2757 /* For help listings, put a blank line between sub-processes. */
2758 if (print_help_list
)
2759 fputc ('\n', stderr
);
2761 /* Print each piped command as a separate line. */
2762 for (i
= 0; i
< n_commands
; i
++)
2764 const char *const *j
;
2766 if (verbose_only_flag
)
2768 for (j
= commands
[i
].argv
; *j
; j
++)
2771 for (p
= *j
; *p
; ++p
)
2772 if (!ISALNUM ((unsigned char) *p
)
2773 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
2777 fprintf (stderr
, " \"");
2778 for (p
= *j
; *p
; ++p
)
2780 if (*p
== '"' || *p
== '\\' || *p
== '$')
2781 fputc ('\\', stderr
);
2784 fputc ('"', stderr
);
2786 /* If it's empty, print "". */
2788 fprintf (stderr
, " \"\"");
2790 fprintf (stderr
, " %s", *j
);
2794 for (j
= commands
[i
].argv
; *j
; j
++)
2795 /* If it's empty, print "". */
2797 fprintf (stderr
, " \"\"");
2799 fprintf (stderr
, " %s", *j
);
2801 /* Print a pipe symbol after all but the last command. */
2802 if (i
+ 1 != n_commands
)
2803 fprintf (stderr
, " |");
2804 fprintf (stderr
, "\n");
2807 if (verbose_only_flag
!= 0)
2809 /* verbose_only_flag should act as if the spec was
2810 executed, so increment execution_count before
2811 returning. This prevents spurious warnings about
2812 unused linker input files, etc. */
2817 fnotice (stderr
, "\nGo ahead? (y or n) ");
2821 while (getchar () != '\n')
2824 if (i
!= 'y' && i
!= 'Y')
2829 #ifdef ENABLE_VALGRIND_CHECKING
2830 /* Run the each command through valgrind. To simplify prepending the
2831 path to valgrind and the option "-q" (for quiet operation unless
2832 something triggers), we allocate a separate argv array. */
2834 for (i
= 0; i
< n_commands
; i
++)
2840 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2843 argv
= XALLOCAVEC (const char *, argc
+ 3);
2845 argv
[0] = VALGRIND_PATH
;
2847 for (j
= 2; j
< argc
+ 2; j
++)
2848 argv
[j
] = commands
[i
].argv
[j
- 2];
2851 commands
[i
].argv
= argv
;
2852 commands
[i
].prog
= argv
[0];
2856 /* Run each piped subprocess. */
2858 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
2859 ? PEX_RECORD_TIMES
: 0),
2860 progname
, temp_filename
);
2862 fatal_error (input_location
, "pex_init failed: %m");
2864 for (i
= 0; i
< n_commands
; i
++)
2868 const char *string
= commands
[i
].argv
[0];
2870 errmsg
= pex_run (pex
,
2871 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
2872 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
2873 string
, CONST_CAST (char **, commands
[i
].argv
),
2878 fatal_error (input_location
, errmsg
);
2882 pfatal_with_name (errmsg
);
2886 if (i
&& string
!= commands
[i
].prog
)
2887 free (CONST_CAST (char *, string
));
2892 /* Wait for all the subprocesses to finish. */
2896 struct pex_time
*times
= NULL
;
2899 statuses
= (int *) alloca (n_commands
* sizeof (int));
2900 if (!pex_get_status (pex
, n_commands
, statuses
))
2901 fatal_error (input_location
, "failed to get exit status: %m");
2903 if (report_times
|| report_times_to_file
)
2905 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
2906 if (!pex_get_times (pex
, n_commands
, times
))
2907 fatal_error (input_location
, "failed to get process times: %m");
2912 for (i
= 0; i
< n_commands
; ++i
)
2914 int status
= statuses
[i
];
2916 if (WIFSIGNALED (status
))
2919 /* SIGPIPE is a special case. It happens in -pipe mode
2920 when the compiler dies before the preprocessor is done,
2921 or the assembler dies before the compiler is done.
2922 There's generally been an error already, and this is
2923 just fallout. So don't generate another error unless
2924 we would otherwise have succeeded. */
2925 if (WTERMSIG (status
) == SIGPIPE
2926 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2933 internal_error_no_backtrace ("%s (program %s)",
2934 strsignal (WTERMSIG (status
)),
2937 else if (WIFEXITED (status
)
2938 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2940 /* For ICEs in cc1, cc1obj, cc1plus see if it is
2941 reproducible or not. */
2944 && WEXITSTATUS (status
) == ICE_EXIT_CODE
2946 && (p
= strrchr (commands
[0].argv
[0], DIR_SEPARATOR
))
2947 && ! strncmp (p
+ 1, "cc1", 3))
2948 try_generate_repro (commands
[0].argv
);
2949 if (WEXITSTATUS (status
) > greatest_status
)
2950 greatest_status
= WEXITSTATUS (status
);
2954 if (report_times
|| report_times_to_file
)
2956 struct pex_time
*pt
= ×
[i
];
2959 ut
= ((double) pt
->user_seconds
2960 + (double) pt
->user_microseconds
/ 1.0e6
);
2961 st
= ((double) pt
->system_seconds
2962 + (double) pt
->system_microseconds
/ 1.0e6
);
2967 fnotice (stderr
, "# %s %.2f %.2f\n",
2968 commands
[i
].prog
, ut
, st
);
2970 if (report_times_to_file
)
2973 const char *const *j
;
2975 fprintf (report_times_to_file
, "%g %g", ut
, st
);
2977 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
2980 for (p
= *j
; *p
; ++p
)
2981 if (*p
== '"' || *p
== '\\' || *p
== '$'
2987 fprintf (report_times_to_file
, " \"");
2988 for (p
= *j
; *p
; ++p
)
2990 if (*p
== '"' || *p
== '\\' || *p
== '$')
2991 fputc ('\\', report_times_to_file
);
2992 fputc (*p
, report_times_to_file
);
2994 fputc ('"', report_times_to_file
);
2997 fprintf (report_times_to_file
, " %s", *j
);
3000 fputc ('\n', report_times_to_file
);
3006 if (commands
[0].argv
[0] != commands
[0].prog
)
3007 free (CONST_CAST (char *, commands
[0].argv
[0]));
3013 /* Find all the switches given to us
3014 and make a vector describing them.
3015 The elements of the vector are strings, one per switch given.
3016 If a switch uses following arguments, then the `part1' field
3017 is the switch itself and the `args' field
3018 is a null-terminated vector containing the following arguments.
3019 Bits in the `live_cond' field are:
3020 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3021 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3022 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3023 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored
3024 in all do_spec calls afterwards. Used for %<S from self specs.
3025 The `validated' field is nonzero if any spec has looked at this switch;
3026 if it remains zero at the end of the run, it must be meaningless. */
3028 #define SWITCH_LIVE (1 << 0)
3029 #define SWITCH_FALSE (1 << 1)
3030 #define SWITCH_IGNORE (1 << 2)
3031 #define SWITCH_IGNORE_PERMANENTLY (1 << 3)
3032 #define SWITCH_KEEP_FOR_GCC (1 << 4)
3038 unsigned int live_cond
;
3044 static struct switchstr
*switches
;
3046 static int n_switches
;
3048 static int n_switches_alloc
;
3050 /* Set to zero if -fcompare-debug is disabled, positive if it's
3051 enabled and we're running the first compilation, negative if it's
3052 enabled and we're running the second compilation. For most of the
3053 time, it's in the range -1..1, but it can be temporarily set to 2
3054 or 3 to indicate that the -fcompare-debug flags didn't come from
3055 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3056 variable, until a synthesized -fcompare-debug flag is added to the
3060 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3061 int compare_debug_second
;
3063 /* Set to the flags that should be passed to the second compilation in
3064 a -fcompare-debug compilation. */
3065 const char *compare_debug_opt
;
3067 static struct switchstr
*switches_debug_check
[2];
3069 static int n_switches_debug_check
[2];
3071 static int n_switches_alloc_debug_check
[2];
3073 static char *debug_check_temp_file
[2];
3075 /* Language is one of three things:
3077 1) The name of a real programming language.
3078 2) NULL, indicating that no one has figured out
3080 3) '*', indicating that the file should be passed
3085 const char *language
;
3086 struct compiler
*incompiler
;
3091 /* Also a vector of input files specified. */
3093 static struct infile
*infiles
;
3097 static int n_infiles_alloc
;
3099 /* True if multiple input files are being compiled to a single
3102 static bool combine_inputs
;
3104 /* This counts the number of libraries added by lang_specific_driver, so that
3105 we can tell if there were any user supplied any files or libraries. */
3107 static int added_libraries
;
3109 /* And a vector of corresponding output files is made up later. */
3111 const char **outfiles
;
3113 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3115 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3116 is true if we should look for an executable suffix. DO_OBJ
3117 is true if we should look for an object suffix. */
3120 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3121 int do_obj ATTRIBUTE_UNUSED
)
3123 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3131 len
= strlen (name
);
3133 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3134 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3135 if (do_obj
&& len
> 2
3136 && name
[len
- 2] == '.'
3137 && name
[len
- 1] == 'o')
3139 obstack_grow (&obstack
, name
, len
- 2);
3140 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3141 name
= XOBFINISH (&obstack
, const char *);
3145 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3146 /* If there is no filetype, make it the executable suffix (which includes
3147 the "."). But don't get confused if we have just "-o". */
3148 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3151 for (i
= len
- 1; i
>= 0; i
--)
3152 if (IS_DIR_SEPARATOR (name
[i
]))
3155 for (i
++; i
< len
; i
++)
3159 obstack_grow (&obstack
, name
, len
);
3160 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3161 strlen (TARGET_EXECUTABLE_SUFFIX
));
3162 name
= XOBFINISH (&obstack
, const char *);
3169 /* Display the command line switches accepted by gcc. */
3173 printf (_("Usage: %s [options] file...\n"), progname
);
3174 fputs (_("Options:\n"), stdout
);
3176 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3177 fputs (_(" --help Display this information\n"), stdout
);
3178 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3179 fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...]\n"), stdout
);
3180 fputs (_(" Display specific types of command line options\n"), stdout
);
3182 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3183 fputs (_(" --version Display compiler version information\n"), stdout
);
3184 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3185 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3186 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3187 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3188 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3189 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3190 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3192 -print-multiarch Display the target's normalized GNU triplet, used as\n\
3193 a component in the library path\n"), stdout
);
3194 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3196 -print-multi-lib Display the mapping between command line options and\n\
3197 multiple library search directories\n"), stdout
);
3198 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3199 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout
);
3200 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
3201 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3202 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3203 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3204 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3205 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3206 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3207 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3208 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout
);
3210 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3211 prefixes to other gcc components\n"), stdout
);
3212 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3213 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3214 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3215 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3217 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3218 and libraries\n"), stdout
);
3219 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3220 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3221 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3222 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3223 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3224 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3225 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3226 fputs (_(" -pie Create a position independent executable\n"), stdout
);
3227 fputs (_(" -shared Create a shared library\n"), stdout
);
3229 -x <language> Specify the language of the following input files\n\
3230 Permissible languages include: c c++ assembler none\n\
3231 'none' means revert to the default behavior of\n\
3232 guessing the language based on the file's extension\n\
3236 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3237 passed on to the various sub-processes invoked by %s. In order to pass\n\
3238 other options on to these processes the -W<letter> options must be used.\n\
3241 /* The rest of the options are displayed by invocations of the various
3246 add_preprocessor_option (const char *option
, int len
)
3248 preprocessor_options
.safe_push (save_string (option
, len
));
3252 add_assembler_option (const char *option
, int len
)
3254 assembler_options
.safe_push (save_string (option
, len
));
3258 add_linker_option (const char *option
, int len
)
3260 linker_options
.safe_push (save_string (option
, len
));
3263 /* Allocate space for an input file in infiles. */
3268 if (n_infiles_alloc
== 0)
3270 n_infiles_alloc
= 16;
3271 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3273 else if (n_infiles_alloc
== n_infiles
)
3275 n_infiles_alloc
*= 2;
3276 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3280 /* Store an input file with the given NAME and LANGUAGE in
3284 add_infile (const char *name
, const char *language
)
3287 infiles
[n_infiles
].name
= name
;
3288 infiles
[n_infiles
++].language
= language
;
3291 /* Allocate space for a switch in switches. */
3296 if (n_switches_alloc
== 0)
3298 n_switches_alloc
= 16;
3299 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3301 else if (n_switches_alloc
== n_switches
)
3303 n_switches_alloc
*= 2;
3304 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3308 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3309 as validated if VALIDATED and KNOWN if it is an internal switch. */
3312 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3313 bool validated
, bool known
)
3316 switches
[n_switches
].part1
= opt
+ 1;
3318 switches
[n_switches
].args
= 0;
3321 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3322 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3323 switches
[n_switches
].args
[n_args
] = NULL
;
3326 switches
[n_switches
].live_cond
= 0;
3327 switches
[n_switches
].validated
= validated
;
3328 switches
[n_switches
].known
= known
;
3329 switches
[n_switches
].ordering
= 0;
3333 /* Handle an option DECODED that is unknown to the option-processing
3337 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3339 const char *opt
= decoded
->arg
;
3340 if (opt
[1] == 'W' && opt
[2] == 'n' && opt
[3] == 'o' && opt
[4] == '-'
3341 && !(decoded
->errors
& CL_ERR_NEGATIVE
))
3343 /* Leave unknown -Wno-* options for the compiler proper, to be
3344 diagnosed only if there are warnings. */
3345 save_switch (decoded
->canonical_option
[0],
3346 decoded
->canonical_option_num_elements
- 1,
3347 &decoded
->canonical_option
[1], false, true);
3350 if (decoded
->opt_index
== OPT_SPECIAL_unknown
)
3352 /* Give it a chance to define it a a spec file. */
3353 save_switch (decoded
->canonical_option
[0],
3354 decoded
->canonical_option_num_elements
- 1,
3355 &decoded
->canonical_option
[1], false, false);
3362 /* Handle an option DECODED that is not marked as CL_DRIVER.
3363 LANG_MASK will always be CL_DRIVER. */
3366 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3367 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3369 /* At this point, non-driver options are accepted (and expected to
3370 be passed down by specs) unless marked to be rejected by the
3371 driver. Options to be rejected by the driver but accepted by the
3372 compilers proper are treated just like completely unknown
3374 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3376 if (option
->cl_reject_driver
)
3377 error ("unrecognized command line option %qs",
3378 decoded
->orig_option_with_args_text
);
3380 save_switch (decoded
->canonical_option
[0],
3381 decoded
->canonical_option_num_elements
- 1,
3382 &decoded
->canonical_option
[1], false, true);
3385 static const char *spec_lang
= 0;
3386 static int last_language_n_infiles
;
3388 /* Parse -foffload option argument. */
3391 handle_foffload_option (const char *arg
)
3393 const char *c
, *cur
, *n
, *next
, *end
;
3396 /* If option argument starts with '-' then no target is specified and we
3397 do not need to parse it. */
3401 end
= strchr (arg
, '=');
3403 end
= strchr (arg
, '\0');
3408 next
= strchr (cur
, ',');
3411 next
= (next
> end
) ? end
: next
;
3413 target
= XNEWVEC (char, next
- cur
+ 1);
3414 memcpy (target
, cur
, next
- cur
);
3415 target
[next
- cur
] = '\0';
3417 /* If 'disable' is passed to the option, stop parsing the option and clean
3418 the list of offload targets. */
3419 if (strcmp (target
, "disable") == 0)
3421 free (offload_targets
);
3422 offload_targets
= xstrdup ("");
3426 /* Check that GCC is configured to support the offload target. */
3427 c
= OFFLOAD_TARGETS
;
3430 n
= strchr (c
, ',');
3432 n
= strchr (c
, '\0');
3434 if (next
- cur
== n
- c
&& strncmp (target
, c
, n
- c
) == 0)
3437 c
= *n
? n
+ 1 : NULL
;
3441 fatal_error (input_location
,
3442 "GCC is not configured to support %s as offload target",
3445 if (!offload_targets
)
3447 offload_targets
= target
;
3452 /* Check that the target hasn't already presented in the list. */
3453 c
= offload_targets
;
3456 n
= strchr (c
, ':');
3458 n
= strchr (c
, '\0');
3460 if (next
- cur
== n
- c
&& strncmp (c
, target
, n
- c
) == 0)
3467 /* If duplicate is not found, append the target to the list. */
3470 size_t offload_targets_len
= strlen (offload_targets
);
3472 = XRESIZEVEC (char, offload_targets
,
3473 offload_targets_len
+ next
- cur
+ 2);
3474 if (offload_targets_len
)
3475 offload_targets
[offload_targets_len
++] = ':';
3476 memcpy (offload_targets
+ offload_targets_len
, target
, next
- cur
);
3481 XDELETEVEC (target
);
3485 /* Handle a driver option; arguments and return value as for
3489 driver_handle_option (struct gcc_options
*opts
,
3490 struct gcc_options
*opts_set
,
3491 const struct cl_decoded_option
*decoded
,
3492 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
3494 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
,
3495 diagnostic_context
*dc
)
3497 size_t opt_index
= decoded
->opt_index
;
3498 const char *arg
= decoded
->arg
;
3499 const char *compare_debug_replacement_opt
;
3500 int value
= decoded
->value
;
3501 bool validated
= false;
3502 bool do_save
= true;
3504 gcc_assert (opts
== &global_options
);
3505 gcc_assert (opts_set
== &global_options_set
);
3506 gcc_assert (kind
== DK_UNSPECIFIED
);
3507 gcc_assert (loc
== UNKNOWN_LOCATION
);
3508 gcc_assert (dc
== global_dc
);
3514 struct spec_list
*sl
;
3516 for (sl
= specs
; sl
; sl
= sl
->next
)
3517 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3518 if (link_command_spec
)
3519 printf ("*link_command:\n%s\n\n", link_command_spec
);
3523 case OPT_dumpversion
:
3524 printf ("%s\n", spec_version
);
3527 case OPT_dumpmachine
:
3528 printf ("%s\n", spec_machine
);
3534 /* CPP driver cannot obtain switch from cc1_options. */
3536 add_preprocessor_option ("--version", strlen ("--version"));
3537 add_assembler_option ("--version", strlen ("--version"));
3538 add_linker_option ("--version", strlen ("--version"));
3542 print_help_list
= 1;
3544 /* CPP driver cannot obtain switch from cc1_options. */
3546 add_preprocessor_option ("--help", 6);
3547 add_assembler_option ("--help", 6);
3548 add_linker_option ("--help", 6);
3552 print_subprocess_help
= 2;
3555 case OPT__target_help
:
3556 print_subprocess_help
= 1;
3558 /* CPP driver cannot obtain switch from cc1_options. */
3560 add_preprocessor_option ("--target-help", 13);
3561 add_assembler_option ("--target-help", 13);
3562 add_linker_option ("--target-help", 13);
3565 case OPT__no_sysroot_suffix
:
3566 case OPT_pass_exit_codes
:
3567 case OPT_print_search_dirs
:
3568 case OPT_print_file_name_
:
3569 case OPT_print_prog_name_
:
3570 case OPT_print_multi_lib
:
3571 case OPT_print_multi_directory
:
3572 case OPT_print_sysroot
:
3573 case OPT_print_multi_os_directory
:
3574 case OPT_print_multiarch
:
3575 case OPT_print_sysroot_headers_suffix
:
3578 /* These options set the variables specified in common.opt
3579 automatically, and do not need to be saved for spec
3584 case OPT_print_libgcc_file_name
:
3585 print_file_name
= "libgcc.a";
3589 case OPT_fuse_ld_bfd
:
3593 case OPT_fuse_ld_gold
:
3597 case OPT_fcompare_debug_second
:
3598 compare_debug_second
= 1;
3601 case OPT_fcompare_debug
:
3605 compare_debug_replacement_opt
= "-fcompare-debug=";
3607 goto compare_debug_with_arg
;
3610 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
3612 goto compare_debug_with_arg
;
3619 case OPT_fcompare_debug_
:
3620 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
3621 compare_debug_with_arg
:
3622 gcc_assert (decoded
->canonical_option_num_elements
== 1);
3623 gcc_assert (arg
!= NULL
);
3628 if (compare_debug
< 0)
3629 compare_debug_opt
= NULL
;
3631 compare_debug_opt
= arg
;
3632 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
, true);
3635 case OPT_fdiagnostics_color_
:
3636 diagnostic_color_init (dc
, value
);
3642 /* Pass the rest of this option to the assembler. */
3644 /* Split the argument at commas. */
3646 for (j
= 0; arg
[j
]; j
++)
3649 add_assembler_option (arg
+ prev
, j
- prev
);
3653 /* Record the part after the last comma. */
3654 add_assembler_option (arg
+ prev
, j
- prev
);
3662 /* Pass the rest of this option to the preprocessor. */
3664 /* Split the argument at commas. */
3666 for (j
= 0; arg
[j
]; j
++)
3669 add_preprocessor_option (arg
+ prev
, j
- prev
);
3673 /* Record the part after the last comma. */
3674 add_preprocessor_option (arg
+ prev
, j
- prev
);
3682 /* Split the argument at commas. */
3684 for (j
= 0; arg
[j
]; j
++)
3687 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
3690 /* Record the part after the last comma. */
3691 add_infile (arg
+ prev
, "*");
3697 add_infile (arg
, "*");
3701 case OPT_Xpreprocessor
:
3702 add_preprocessor_option (arg
, strlen (arg
));
3706 case OPT_Xassembler
:
3707 add_assembler_option (arg
, strlen (arg
));
3712 /* POSIX allows separation of -l and the lib arg; canonicalize
3713 by concatenating -l with its arg */
3714 add_infile (concat ("-l", arg
, NULL
), "*");
3719 /* Similarly, canonicalize -L for linkers that may not accept
3720 separate arguments. */
3721 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
, true);
3726 save_switch (concat ("-F", arg
, NULL
), 0, NULL
, validated
, true);
3729 case OPT_save_temps
:
3730 save_temps_flag
= SAVE_TEMPS_CWD
;
3734 case OPT_save_temps_
:
3735 if (strcmp (arg
, "cwd") == 0)
3736 save_temps_flag
= SAVE_TEMPS_CWD
;
3737 else if (strcmp (arg
, "obj") == 0
3738 || strcmp (arg
, "object") == 0)
3739 save_temps_flag
= SAVE_TEMPS_OBJ
;
3741 fatal_error (input_location
, "%qs is an unknown -save-temps option",
3742 decoded
->orig_option_with_args_text
);
3745 case OPT_no_canonical_prefixes
:
3746 /* Already handled as a special case, so ignored here. */
3752 /* These options set the variables specified in common.opt
3753 automatically, but do need to be saved for spec
3759 struct user_specs
*user
= XNEW (struct user_specs
);
3761 user
->next
= (struct user_specs
*) 0;
3762 user
->filename
= arg
;
3763 if (user_specs_tail
)
3764 user_specs_tail
->next
= user
;
3766 user_specs_head
= user
;
3767 user_specs_tail
= user
;
3773 target_system_root
= arg
;
3774 target_system_root_changed
= 1;
3779 if (report_times_to_file
)
3780 fclose (report_times_to_file
);
3781 report_times_to_file
= fopen (arg
, "a");
3787 This is similar to -v except that there is no execution
3788 of the commands and the echoed arguments are quoted. It
3789 is intended for use in shell scripts to capture the
3790 driver-generated command line. */
3791 verbose_only_flag
++;
3798 size_t len
= strlen (arg
);
3800 /* Catch the case where the user has forgotten to append a
3801 directory separator to the path. Note, they may be using
3802 -B to add an executable name prefix, eg "i386-elf-", in
3803 order to distinguish between multiple installations of
3804 GCC in the same directory. Hence we must check to see
3805 if appending a directory separator actually makes a
3806 valid directory name. */
3807 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
3808 && is_directory (arg
, false))
3810 char *tmp
= XNEWVEC (char, len
+ 2);
3812 tmp
[len
] = DIR_SEPARATOR
;
3817 add_prefix (&exec_prefixes
, arg
, NULL
,
3818 PREFIX_PRIORITY_B_OPT
, 0, 0);
3819 add_prefix (&startfile_prefixes
, arg
, NULL
,
3820 PREFIX_PRIORITY_B_OPT
, 0, 0);
3821 add_prefix (&include_prefixes
, arg
, NULL
,
3822 PREFIX_PRIORITY_B_OPT
, 0, 0);
3829 if (!strcmp (spec_lang
, "none"))
3830 /* Suppress the warning if -xnone comes after the last input
3831 file, because alternate command interfaces like g++ might
3832 find it useful to place -xnone after each input file. */
3835 last_language_n_infiles
= n_infiles
;
3841 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3842 arg
= convert_filename (arg
, ! have_c
, 0);
3845 /* Save the output name in case -save-temps=obj was used. */
3846 save_temps_prefix
= xstrdup (arg
);
3847 /* On some systems, ld cannot handle "-o" without a space. So
3848 split the option from its argument. */
3849 save_switch ("-o", 1, &arg
, validated
, true);
3852 case OPT_static_libgcc
:
3853 case OPT_shared_libgcc
:
3854 case OPT_static_libgfortran
:
3855 case OPT_static_libstdc__
:
3856 /* These are always valid, since gcc.c itself understands the
3857 first two, gfortranspec.c understands -static-libgfortran and
3858 g++spec.c understands -static-libstdc++ */
3867 handle_foffload_option (arg
);
3871 /* Various driver options need no special processing at this
3872 point, having been handled in a prescan above or being
3873 handled by specs. */
3878 save_switch (decoded
->canonical_option
[0],
3879 decoded
->canonical_option_num_elements
- 1,
3880 &decoded
->canonical_option
[1], validated
, true);
3884 /* Put the driver's standard set of option handlers in *HANDLERS. */
3887 set_option_handlers (struct cl_option_handlers
*handlers
)
3889 handlers
->unknown_option_callback
= driver_unknown_option_callback
;
3890 handlers
->wrong_lang_callback
= driver_wrong_lang_callback
;
3891 handlers
->num_handlers
= 3;
3892 handlers
->handlers
[0].handler
= driver_handle_option
;
3893 handlers
->handlers
[0].mask
= CL_DRIVER
;
3894 handlers
->handlers
[1].handler
= common_handle_option
;
3895 handlers
->handlers
[1].mask
= CL_COMMON
;
3896 handlers
->handlers
[2].handler
= target_handle_option
;
3897 handlers
->handlers
[2].mask
= CL_TARGET
;
3900 /* Create the vector `switches' and its contents.
3901 Store its length in `n_switches'. */
3904 process_command (unsigned int decoded_options_count
,
3905 struct cl_decoded_option
*decoded_options
)
3909 char *tooldir_prefix
, *tooldir_prefix2
;
3910 char *(*get_relative_prefix
) (const char *, const char *,
3911 const char *) = NULL
;
3912 struct cl_option_handlers handlers
;
3915 gcc_exec_prefix
= getenv ("GCC_EXEC_PREFIX");
3919 added_libraries
= 0;
3921 /* Figure compiler version from version string. */
3923 compiler_version
= temp1
= xstrdup (version_string
);
3925 for (; *temp1
; ++temp1
)
3934 /* Handle any -no-canonical-prefixes flag early, to assign the function
3935 that builds relative prefixes. This function creates default search
3936 paths that are needed later in normal option handling. */
3938 for (j
= 1; j
< decoded_options_count
; j
++)
3940 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
3942 get_relative_prefix
= make_relative_prefix_ignore_links
;
3946 if (! get_relative_prefix
)
3947 get_relative_prefix
= make_relative_prefix
;
3949 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3950 see if we can create it from the pathname specified in
3951 decoded_options[0].arg. */
3953 gcc_libexec_prefix
= standard_libexec_prefix
;
3955 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3956 if (!gcc_exec_prefix
)
3958 #if 0 /* Never use relative prefix (not bootstrapped) */
3959 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3960 standard_bindir_prefix
,
3961 standard_exec_prefix
);
3962 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3963 standard_bindir_prefix
,
3964 standard_libexec_prefix
);
3965 if (gcc_exec_prefix
)
3966 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3971 /* make_relative_prefix requires a program name, but
3972 GCC_EXEC_PREFIX is typically a directory name with a trailing
3973 / (which is ignored by make_relative_prefix), so append a
3975 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3976 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
3977 standard_exec_prefix
,
3978 standard_libexec_prefix
);
3980 /* The path is unrelocated, so fallback to the original setting. */
3981 if (!gcc_libexec_prefix
)
3982 gcc_libexec_prefix
= standard_libexec_prefix
;
3988 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3989 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3990 or an automatically created GCC_EXEC_PREFIX from
3991 decoded_options[0].arg. */
3993 /* Do language-specific adjustment/addition of flags. */
3994 lang_specific_driver (&decoded_options
, &decoded_options_count
,
3997 if (gcc_exec_prefix
)
3999 int len
= strlen (gcc_exec_prefix
);
4001 if (len
> (int) sizeof ("/lib/gcc/") - 1
4002 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
4004 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
4005 if (IS_DIR_SEPARATOR (*temp
)
4006 && filename_ncmp (temp
+ 1, "lib", 3) == 0
4007 && IS_DIR_SEPARATOR (temp
[4])
4008 && filename_ncmp (temp
+ 5, "gcc", 3) == 0)
4009 len
-= sizeof ("/lib/gcc/") - 1;
4012 #if 0 /* Bad Paths */
4013 set_std_prefix (gcc_exec_prefix
, len
);
4014 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
4015 PREFIX_PRIORITY_LAST
, 0, 0);
4016 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
4017 PREFIX_PRIORITY_LAST
, 0, 0);
4021 /* COMPILER_PATH and LIBRARY_PATH have values
4022 that are lists of directory names with colons. */
4024 temp
= getenv ("COMPILER_PATH");
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 (&exec_prefixes
, nstore
, 0,
4046 PREFIX_PRIORITY_LAST
, 0, 0);
4047 add_prefix (&include_prefixes
, nstore
, 0,
4048 PREFIX_PRIORITY_LAST
, 0, 0);
4051 endp
= startp
= endp
+ 1;
4058 temp
= getenv (LIBRARY_PATH_ENV
);
4059 if (temp
&& *cross_compile
== '0')
4061 const char *startp
, *endp
;
4062 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4064 startp
= endp
= temp
;
4067 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4069 strncpy (nstore
, startp
, endp
- startp
);
4071 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4072 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4074 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4075 nstore
[endp
- startp
+ 1] = 0;
4078 nstore
[endp
- startp
] = 0;
4079 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4080 PREFIX_PRIORITY_LAST
, 0, 1);
4083 endp
= startp
= endp
+ 1;
4090 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
4091 temp
= getenv ("LPATH");
4092 if (temp
&& *cross_compile
== '0')
4094 const char *startp
, *endp
;
4095 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4097 startp
= endp
= temp
;
4100 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4102 strncpy (nstore
, startp
, endp
- startp
);
4104 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4105 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4107 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4108 nstore
[endp
- startp
+ 1] = 0;
4111 nstore
[endp
- startp
] = 0;
4112 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4113 PREFIX_PRIORITY_LAST
, 0, 1);
4116 endp
= startp
= endp
+ 1;
4123 /* Process the options and store input files and switches in their
4126 last_language_n_infiles
= -1;
4128 set_option_handlers (&handlers
);
4130 for (j
= 1; j
< decoded_options_count
; j
++)
4132 switch (decoded_options
[j
].opt_index
)
4144 for (j
= 1; j
< decoded_options_count
; j
++)
4146 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
4148 const char *arg
= decoded_options
[j
].arg
;
4149 const char *p
= strrchr (arg
, '@');
4153 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4154 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
4156 /* For LTO static archive support we handle input file
4157 specifications that are composed of a filename and
4158 an offset like FNAME@OFFSET. */
4161 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
4162 && strlen (p
) == (unsigned int)consumed
)
4164 fname
= (char *)xmalloc (p
- arg
+ 1);
4165 memcpy (fname
, arg
, p
- arg
);
4166 fname
[p
- arg
] = '\0';
4167 /* Only accept non-stdin and existing FNAME parts, otherwise
4168 try with the full name. */
4169 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
4172 fname
= xstrdup (arg
);
4176 fname
= xstrdup (arg
);
4178 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
4179 perror_with_name (fname
);
4181 add_infile (arg
, spec_lang
);
4187 read_cmdline_option (&global_options
, &global_options_set
,
4188 decoded_options
+ j
, UNKNOWN_LOCATION
,
4189 CL_DRIVER
, &handlers
, global_dc
);
4193 && strcmp (output_file
, "-") != 0
4194 && strcmp (output_file
, HOST_BIT_BUCKET
) != 0)
4197 for (i
= 0; i
< n_infiles
; i
++)
4198 if ((!infiles
[i
].language
|| infiles
[i
].language
[0] != '*')
4199 && canonical_filename_eq (infiles
[i
].name
, output_file
))
4200 fatal_error (input_location
,
4201 "input file %qs is the same as output file",
4205 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4206 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4207 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
4209 save_temps_length
= strlen (save_temps_prefix
);
4210 temp
= strrchr (lbasename (save_temps_prefix
), '.');
4213 save_temps_length
-= strlen (temp
);
4214 save_temps_prefix
[save_temps_length
] = '\0';
4218 else if (save_temps_prefix
!= NULL
)
4220 free (save_temps_prefix
);
4221 save_temps_prefix
= NULL
;
4224 if (save_temps_flag
&& use_pipes
)
4226 /* -save-temps overrides -pipe, so that temp files are produced */
4227 if (save_temps_flag
)
4228 warning (0, "-pipe ignored because -save-temps specified");
4234 const char *gcd
= getenv ("GCC_COMPARE_DEBUG");
4236 if (gcd
&& gcd
[0] == '-')
4239 compare_debug_opt
= gcd
;
4241 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
4244 compare_debug_opt
= "-gtoggle";
4247 else if (compare_debug
< 0)
4250 gcc_assert (!compare_debug_opt
);
4253 /* Set up the search paths. We add directories that we expect to
4254 contain GNU Toolchain components before directories specified by
4255 the machine description so that we will find GNU components (like
4256 the GNU assembler) before those of the host system. */
4258 /* If we don't know where the toolchain has been installed, use the
4259 configured-in locations. */
4260 if (!gcc_exec_prefix
)
4263 add_prefix (&exec_prefixes
, standard_libexec_prefix
, NULL
,
4264 PREFIX_PRIORITY_LAST
, 0, 0);
4265 # if 0 /* Bad paths */
4266 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4267 PREFIX_PRIORITY_LAST
, 1, 0);
4268 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4269 PREFIX_PRIORITY_LAST
, 2, 0);
4270 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4271 PREFIX_PRIORITY_LAST
, 2, 0);
4274 #if 0 /* Bad paths */
4275 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4276 PREFIX_PRIORITY_LAST
, 1, 0);
4280 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4281 tooldir_prefix2
= concat (tooldir_base_prefix
, spec_host_machine
,
4282 dir_separator_str
, NULL
);
4284 /* Look for tools relative to the location from which the driver is
4285 running, or, if that is not available, the configured prefix. */
4287 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4288 spec_host_machine
, dir_separator_str
, spec_version
,
4289 accel_dir_suffix
, dir_separator_str
, tooldir_prefix2
, NULL
);
4290 free (tooldir_prefix2
);
4292 #if 0 /* Bad paths */
4293 add_prefix (&exec_prefixes
,
4294 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4295 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4296 add_prefix (&startfile_prefixes
,
4297 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4298 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4300 free (tooldir_prefix
);
4302 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4303 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4304 then consider it to relocate with the rest of the GCC installation
4305 if GCC_EXEC_PREFIX is set.
4306 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4307 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
4309 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4310 standard_bindir_prefix
,
4311 target_system_root
);
4312 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4314 target_system_root
= tmp_prefix
;
4315 target_system_root_changed
= 1;
4320 /* More prefixes are enabled in main, after we read the specs file
4321 and determine whether this is cross-compilation or not. */
4323 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4324 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
4326 /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG
4327 environment variable. */
4328 if (compare_debug
== 2 || compare_debug
== 3)
4330 const char *opt
= concat ("-fcompare-debug=", compare_debug_opt
, NULL
);
4331 save_switch (opt
, 0, NULL
, false, true);
4335 /* Ensure we only invoke each subprocess once. */
4336 if (print_subprocess_help
|| print_help_list
|| print_version
)
4340 /* Create a dummy input file, so that we can pass
4341 the help option on to the various sub-processes. */
4342 add_infile ("help-dummy", "c");
4346 switches
[n_switches
].part1
= 0;
4348 infiles
[n_infiles
].name
= 0;
4351 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4352 and place that in the environment. */
4355 set_collect_gcc_options (void)
4360 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4362 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4363 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4366 for (i
= 0; (int) i
< n_switches
; i
++)
4368 const char *const *args
;
4371 obstack_grow (&collect_obstack
, " ", 1);
4375 /* Ignore elided switches. */
4376 if ((switches
[i
].live_cond
4377 & (SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
))
4381 obstack_grow (&collect_obstack
, "'-", 2);
4382 q
= switches
[i
].part1
;
4383 while ((p
= strchr (q
, '\'')))
4385 obstack_grow (&collect_obstack
, q
, p
- q
);
4386 obstack_grow (&collect_obstack
, "'\\''", 4);
4389 obstack_grow (&collect_obstack
, q
, strlen (q
));
4390 obstack_grow (&collect_obstack
, "'", 1);
4392 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4394 obstack_grow (&collect_obstack
, " '", 2);
4396 while ((p
= strchr (q
, '\'')))
4398 obstack_grow (&collect_obstack
, q
, p
- q
);
4399 obstack_grow (&collect_obstack
, "'\\''", 4);
4402 obstack_grow (&collect_obstack
, q
, strlen (q
));
4403 obstack_grow (&collect_obstack
, "'", 1);
4406 obstack_grow (&collect_obstack
, "\0", 1);
4407 xputenv (XOBFINISH (&collect_obstack
, char *));
4410 /* Process a spec string, accumulating and running commands. */
4412 /* These variables describe the input file name.
4413 input_file_number is the index on outfiles of this file,
4414 so that the output file name can be stored for later use by %o.
4415 input_basename is the start of the part of the input file
4416 sans all directory names, and basename_length is the number
4417 of characters starting there excluding the suffix .c or whatever. */
4419 static const char *gcc_input_filename
;
4420 static int input_file_number
;
4421 size_t input_filename_length
;
4422 static int basename_length
;
4423 static int suffixed_basename_length
;
4424 static const char *input_basename
;
4425 static const char *input_suffix
;
4426 #ifndef HOST_LACKS_INODE_NUMBERS
4427 static struct stat input_stat
;
4429 static int input_stat_set
;
4431 /* The compiler used to process the current input file. */
4432 static struct compiler
*input_file_compiler
;
4434 /* These are variables used within do_spec and do_spec_1. */
4436 /* Nonzero if an arg has been started and not yet terminated
4437 (with space, tab or newline). */
4438 static int arg_going
;
4440 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4441 is a temporary file name. */
4442 static int delete_this_arg
;
4444 /* Nonzero means %w has been seen; the next arg to be terminated
4445 is the output file name of this compilation. */
4446 static int this_is_output_file
;
4448 /* Nonzero means %s has been seen; the next arg to be terminated
4449 is the name of a library file and we should try the standard
4450 search dirs for it. */
4451 static int this_is_library_file
;
4453 /* Nonzero means %T has been seen; the next arg to be terminated
4454 is the name of a linker script and we should try all of the
4455 standard search dirs for it. If it is found insert a --script
4456 command line switch and then substitute the full path in place,
4457 otherwise generate an error message. */
4458 static int this_is_linker_script
;
4460 /* Nonzero means that the input of this command is coming from a pipe. */
4461 static int input_from_pipe
;
4463 /* Nonnull means substitute this for any suffix when outputting a switches
4465 static const char *suffix_subst
;
4467 /* If there is an argument being accumulated, terminate it and store it. */
4470 end_going_arg (void)
4476 obstack_1grow (&obstack
, 0);
4477 string
= XOBFINISH (&obstack
, const char *);
4478 if (this_is_library_file
)
4479 string
= find_file (string
);
4480 if (this_is_linker_script
)
4482 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4484 if (full_script_path
== NULL
)
4486 error ("unable to locate default linker script %qs in the library search paths", string
);
4487 /* Script was not found on search path. */
4490 store_arg ("--script", false, false);
4491 string
= full_script_path
;
4493 store_arg (string
, delete_this_arg
, this_is_output_file
);
4494 if (this_is_output_file
)
4495 outfiles
[input_file_number
] = string
;
4501 /* Parse the WRAPPER string which is a comma separated list of the command line
4502 and insert them into the beginning of argbuf. */
4505 insert_wrapper (const char *wrapper
)
4509 char *buf
= xstrdup (wrapper
);
4511 unsigned int old_length
= argbuf
.length ();
4519 while ((p
= strchr (p
, ',')) != NULL
);
4521 argbuf
.safe_grow (old_length
+ n
);
4522 memmove (argbuf
.address () + n
,
4524 old_length
* sizeof (const_char_p
));
4538 while ((p
= strchr (p
, ',')) != NULL
);
4539 gcc_assert (i
== n
);
4542 /* Process the spec SPEC and run the commands specified therein.
4543 Returns 0 if the spec is successfully processed; -1 if failed. */
4546 do_spec (const char *spec
)
4550 value
= do_spec_2 (spec
);
4552 /* Force out any unfinished command.
4553 If -pipe, this forces out the last command if it ended in `|'. */
4556 if (argbuf
.length () > 0
4557 && !strcmp (argbuf
.last (), "|"))
4560 set_collect_gcc_options ();
4562 if (argbuf
.length () > 0)
4570 do_spec_2 (const char *spec
)
4576 delete_this_arg
= 0;
4577 this_is_output_file
= 0;
4578 this_is_library_file
= 0;
4579 this_is_linker_script
= 0;
4580 input_from_pipe
= 0;
4581 suffix_subst
= NULL
;
4583 result
= do_spec_1 (spec
, 0, NULL
);
4591 /* Process the given spec string and add any new options to the end
4592 of the switches/n_switches array. */
4595 do_option_spec (const char *name
, const char *spec
)
4597 unsigned int i
, value_count
, value_len
;
4598 const char *p
, *q
, *value
;
4599 char *tmp_spec
, *tmp_spec_p
;
4601 if (configure_default_options
[0].name
== NULL
)
4604 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4605 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4607 if (i
== ARRAY_SIZE (configure_default_options
))
4610 value
= configure_default_options
[i
].value
;
4611 value_len
= strlen (value
);
4613 /* Compute the size of the final spec. */
4616 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4622 /* Replace each %(VALUE) by the specified value. */
4623 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4624 + value_count
* (value_len
- strlen ("%(VALUE)")));
4625 tmp_spec_p
= tmp_spec
;
4627 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4629 memcpy (tmp_spec_p
, q
, p
- q
);
4630 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4631 memcpy (tmp_spec_p
, value
, value_len
);
4632 tmp_spec_p
+= value_len
;
4633 q
= p
+ strlen ("%(VALUE)");
4635 strcpy (tmp_spec_p
, q
);
4637 do_self_spec (tmp_spec
);
4640 /* Process the given spec string and add any new options to the end
4641 of the switches/n_switches array. */
4644 do_self_spec (const char *spec
)
4649 do_spec_1 (" ", 0, NULL
);
4651 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
4652 do_self_specs adds the replacements to switches array, so it shouldn't
4653 be processed afterwards. */
4654 for (i
= 0; i
< n_switches
; i
++)
4655 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
4656 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
4658 if (argbuf
.length () > 0)
4660 const char **argbuf_copy
;
4661 struct cl_decoded_option
*decoded_options
;
4662 struct cl_option_handlers handlers
;
4663 unsigned int decoded_options_count
;
4666 /* Create a copy of argbuf with a dummy argv[0] entry for
4667 decode_cmdline_options_to_array. */
4668 argbuf_copy
= XNEWVEC (const char *,
4669 argbuf
.length () + 1);
4670 argbuf_copy
[0] = "";
4671 memcpy (argbuf_copy
+ 1, argbuf
.address (),
4672 argbuf
.length () * sizeof (const char *));
4674 decode_cmdline_options_to_array (argbuf
.length () + 1,
4676 CL_DRIVER
, &decoded_options
,
4677 &decoded_options_count
);
4680 set_option_handlers (&handlers
);
4682 for (j
= 1; j
< decoded_options_count
; j
++)
4684 switch (decoded_options
[j
].opt_index
)
4686 case OPT_SPECIAL_input_file
:
4687 /* Specs should only generate options, not input
4689 if (strcmp (decoded_options
[j
].arg
, "-") != 0)
4690 fatal_error (input_location
,
4691 "switch %qs does not start with %<-%>",
4692 decoded_options
[j
].arg
);
4694 fatal_error (input_location
,
4695 "spec-generated switch is just %<-%>");
4698 case OPT_fcompare_debug_second
:
4699 case OPT_fcompare_debug
:
4700 case OPT_fcompare_debug_
:
4702 /* Avoid duplicate processing of some options from
4703 compare-debug specs; just save them here. */
4704 save_switch (decoded_options
[j
].canonical_option
[0],
4705 (decoded_options
[j
].canonical_option_num_elements
4707 &decoded_options
[j
].canonical_option
[1], false, true);
4711 read_cmdline_option (&global_options
, &global_options_set
,
4712 decoded_options
+ j
, UNKNOWN_LOCATION
,
4713 CL_DRIVER
, &handlers
, global_dc
);
4718 free (decoded_options
);
4721 switches
[n_switches
].part1
= 0;
4725 /* Callback for processing %D and %I specs. */
4727 struct spec_path_info
{
4732 bool separate_options
;
4736 spec_path (char *path
, void *data
)
4738 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
4742 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4745 if (info
->append_len
!= 0)
4747 len
= strlen (path
);
4748 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4751 if (!is_directory (path
, true))
4754 do_spec_1 (info
->option
, 1, NULL
);
4755 if (info
->separate_options
)
4756 do_spec_1 (" ", 0, NULL
);
4758 if (info
->append_len
== 0)
4760 len
= strlen (path
);
4761 save
= path
[len
- 1];
4762 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4763 path
[len
- 1] = '\0';
4766 do_spec_1 (path
, 1, NULL
);
4767 do_spec_1 (" ", 0, NULL
);
4769 /* Must not damage the original path. */
4770 if (info
->append_len
== 0)
4771 path
[len
- 1] = save
;
4776 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
4780 create_at_file (char **argv
)
4782 char *temp_file
= make_temp_file ("");
4783 char *at_argument
= concat ("@", temp_file
, NULL
);
4784 FILE *f
= fopen (temp_file
, "w");
4788 fatal_error (input_location
, "could not open temporary response file %s",
4791 status
= writeargv (argv
, f
);
4794 fatal_error (input_location
,
4795 "could not write to temporary response file %s",
4798 status
= fclose (f
);
4801 fatal_error (input_location
, "could not close temporary response file %s",
4804 store_arg (at_argument
, 0, 0);
4806 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
4809 /* True if we should compile INFILE. */
4812 compile_input_file_p (struct infile
*infile
)
4814 if ((!infile
->language
) || (infile
->language
[0] != '*'))
4815 if (infile
->incompiler
== input_file_compiler
)
4820 /* Process each member of VEC as a spec. */
4823 do_specs_vec (vec
<char_p
> vec
)
4828 FOR_EACH_VEC_ELT (vec
, ix
, opt
)
4830 do_spec_1 (opt
, 1, NULL
);
4831 /* Make each accumulated option a separate argument. */
4832 do_spec_1 (" ", 0, NULL
);
4836 /* Process the sub-spec SPEC as a portion of a larger spec.
4837 This is like processing a whole spec except that we do
4838 not initialize at the beginning and we do not supply a
4839 newline by default at the end.
4840 INSWITCH nonzero means don't process %-sequences in SPEC;
4841 in this case, % is treated as an ordinary character.
4842 This is used while substituting switches.
4843 INSWITCH nonzero also causes SPC not to terminate an argument.
4845 Value is zero unless a line was finished
4846 and the command on that line reported an error. */
4849 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4851 const char *p
= spec
;
4856 /* If it's an empty string argument to a switch, keep it as is. */
4857 if (inswitch
&& !*p
)
4861 /* If substituting a switch, treat all chars like letters.
4862 Otherwise, NL, SPC, TAB and % are special. */
4863 switch (inswitch
? 'a' : c
)
4868 if (argbuf
.length () > 0
4869 && !strcmp (argbuf
.last (), "|"))
4871 /* A `|' before the newline means use a pipe here,
4872 but only if -pipe was specified.
4873 Otherwise, execute now and don't pass the `|' as an arg. */
4876 input_from_pipe
= 1;
4883 set_collect_gcc_options ();
4885 if (argbuf
.length () > 0)
4891 /* Reinitialize for a new command, and for a new argument. */
4894 delete_this_arg
= 0;
4895 this_is_output_file
= 0;
4896 this_is_library_file
= 0;
4897 this_is_linker_script
= 0;
4898 input_from_pipe
= 0;
4905 obstack_1grow (&obstack
, c
);
4913 /* Reinitialize for a new argument. */
4914 delete_this_arg
= 0;
4915 this_is_output_file
= 0;
4916 this_is_library_file
= 0;
4917 this_is_linker_script
= 0;
4924 fatal_error (input_location
, "spec %qs invalid", spec
);
4927 if (save_temps_length
)
4928 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4930 obstack_grow (&obstack
, input_basename
, basename_length
);
4931 if (compare_debug
< 0)
4932 obstack_grow (&obstack
, ".gk", 3);
4937 if (save_temps_length
)
4938 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4940 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4941 if (compare_debug
< 0)
4942 obstack_grow (&obstack
, ".gk", 3);
4947 delete_this_arg
= 2;
4950 /* Dump out the directories specified with LIBRARY_PATH,
4951 followed by the absolute directories
4952 that we search for startfiles. */
4955 struct spec_path_info info
;
4958 info
.append_len
= 0;
4959 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4960 /* Used on systems which record the specified -L dirs
4961 and use them to search for dynamic linking.
4962 Relative directories always come from -B,
4963 and it is better not to use them for searching
4964 at run time. In particular, stage1 loses. */
4965 info
.omit_relative
= true;
4967 info
.omit_relative
= false;
4969 info
.separate_options
= false;
4971 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
4976 /* %efoo means report an error with `foo' as error message
4977 and don't execute any more commands for this file. */
4981 while (*p
!= 0 && *p
!= '\n')
4983 buf
= (char *) alloca (p
- q
+ 1);
4984 strncpy (buf
, q
, p
- q
);
4986 error ("%s", _(buf
));
4991 /* %nfoo means report a notice with `foo' on stderr. */
4995 while (*p
!= 0 && *p
!= '\n')
4997 buf
= (char *) alloca (p
- q
+ 1);
4998 strncpy (buf
, q
, p
- q
);
5000 inform (0, "%s", _(buf
));
5010 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
5011 defined, and it is not a directory, and it is
5012 writable, use it. Otherwise, treat this like any
5013 other temporary file. */
5015 if ((!save_temps_flag
)
5016 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
5017 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
5019 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
5020 strlen (HOST_BIT_BUCKET
));
5021 delete_this_arg
= 0;
5026 goto create_temp_file
;
5030 obstack_1grow (&obstack
, '-');
5031 delete_this_arg
= 0;
5034 /* consume suffix */
5035 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5037 if (p
[0] == '%' && p
[1] == 'O')
5042 goto create_temp_file
;
5046 /* consume suffix */
5047 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5049 if (p
[0] == '%' && p
[1] == 'O')
5054 goto create_temp_file
;
5060 struct temp_name
*t
;
5062 const char *suffix
= p
;
5063 char *saved_suffix
= NULL
;
5065 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5067 suffix_length
= p
- suffix
;
5068 if (p
[0] == '%' && p
[1] == 'O')
5071 /* We don't support extra suffix characters after %O. */
5072 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
5073 fatal_error (input_location
,
5074 "spec %qs has invalid %<%%0%c%>", spec
, *p
);
5075 if (suffix_length
== 0)
5076 suffix
= TARGET_OBJECT_SUFFIX
;
5080 = XNEWVEC (char, suffix_length
5081 + strlen (TARGET_OBJECT_SUFFIX
) + 1);
5082 strncpy (saved_suffix
, suffix
, suffix_length
);
5083 strcpy (saved_suffix
+ suffix_length
,
5084 TARGET_OBJECT_SUFFIX
);
5086 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
5089 if (compare_debug
< 0)
5091 suffix
= concat (".gk", suffix
, NULL
);
5095 /* If -save-temps=obj and -o were specified, use that for the
5097 if (save_temps_length
)
5100 temp_filename_length
5101 = save_temps_length
+ suffix_length
+ 1;
5102 tmp
= (char *) alloca (temp_filename_length
);
5103 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
5104 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
5105 tmp
[save_temps_length
+ suffix_length
] = '\0';
5106 temp_filename
= save_string (tmp
, save_temps_length
5108 obstack_grow (&obstack
, temp_filename
,
5109 temp_filename_length
);
5111 delete_this_arg
= 0;
5115 /* If the gcc_input_filename has the same suffix specified
5116 for the %g, %u, or %U, and -save-temps is specified,
5117 we could end up using that file as an intermediate
5118 thus clobbering the user's source file (.e.g.,
5119 gcc -save-temps foo.s would clobber foo.s with the
5120 output of cpp0). So check for this condition and
5121 generate a temp file as the intermediate. */
5123 if (save_temps_flag
)
5126 temp_filename_length
= basename_length
+ suffix_length
+ 1;
5127 tmp
= (char *) alloca (temp_filename_length
);
5128 memcpy (tmp
, input_basename
, basename_length
);
5129 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
5130 tmp
[basename_length
+ suffix_length
] = '\0';
5131 temp_filename
= tmp
;
5133 if (filename_cmp (temp_filename
, gcc_input_filename
) != 0)
5135 #ifndef HOST_LACKS_INODE_NUMBERS
5136 struct stat st_temp
;
5138 /* Note, set_input() resets input_stat_set to 0. */
5139 if (input_stat_set
== 0)
5141 input_stat_set
= stat (gcc_input_filename
,
5143 if (input_stat_set
>= 0)
5147 /* If we have the stat for the gcc_input_filename
5148 and we can do the stat for the temp_filename
5149 then the they could still refer to the same
5150 file if st_dev/st_ino's are the same. */
5151 if (input_stat_set
!= 1
5152 || stat (temp_filename
, &st_temp
) < 0
5153 || input_stat
.st_dev
!= st_temp
.st_dev
5154 || input_stat
.st_ino
!= st_temp
.st_ino
)
5156 /* Just compare canonical pathnames. */
5157 char* input_realname
= lrealpath (gcc_input_filename
);
5158 char* temp_realname
= lrealpath (temp_filename
);
5159 bool files_differ
= filename_cmp (input_realname
, temp_realname
);
5160 free (input_realname
);
5161 free (temp_realname
);
5166 = save_string (temp_filename
,
5167 temp_filename_length
- 1);
5168 obstack_grow (&obstack
, temp_filename
,
5169 temp_filename_length
);
5171 delete_this_arg
= 0;
5177 /* See if we already have an association of %g/%u/%U and
5179 for (t
= temp_names
; t
; t
= t
->next
)
5180 if (t
->length
== suffix_length
5181 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
5182 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
5185 /* Make a new association if needed. %u and %j
5187 if (t
== 0 || c
== 'u' || c
== 'j')
5191 t
= XNEW (struct temp_name
);
5192 t
->next
= temp_names
;
5195 t
->length
= suffix_length
;
5198 t
->suffix
= saved_suffix
;
5199 saved_suffix
= NULL
;
5202 t
->suffix
= save_string (suffix
, suffix_length
);
5203 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
5204 temp_filename
= make_temp_file (t
->suffix
);
5205 temp_filename_length
= strlen (temp_filename
);
5206 t
->filename
= temp_filename
;
5207 t
->filename_length
= temp_filename_length
;
5210 free (saved_suffix
);
5212 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
5213 delete_this_arg
= 1;
5221 if (at_file_supplied
)
5223 /* We are going to expand `%i' to `@FILE', where FILE
5224 is a newly-created temporary filename. The filenames
5225 that would usually be expanded in place of %o will be
5226 written to the temporary file. */
5231 for (i
= 0; i
< n_infiles
; i
++)
5232 if (compile_input_file_p (&infiles
[i
]))
5235 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5237 /* Copy the strings over. */
5238 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
5239 if (compile_input_file_p (&infiles
[i
]))
5241 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
5242 infiles
[i
].compiled
= true;
5247 create_at_file (argv
);
5250 for (i
= 0; (int) i
< n_infiles
; i
++)
5251 if (compile_input_file_p (&infiles
[i
]))
5253 store_arg (infiles
[i
].name
, 0, 0);
5254 infiles
[i
].compiled
= true;
5259 obstack_grow (&obstack
, gcc_input_filename
,
5260 input_filename_length
);
5267 struct spec_path_info info
;
5271 do_spec_1 ("-imultilib", 1, NULL
);
5272 /* Make this a separate argument. */
5273 do_spec_1 (" ", 0, NULL
);
5274 do_spec_1 (multilib_dir
, 1, NULL
);
5275 do_spec_1 (" ", 0, NULL
);
5280 do_spec_1 ("-imultiarch", 1, NULL
);
5281 /* Make this a separate argument. */
5282 do_spec_1 (" ", 0, NULL
);
5283 do_spec_1 (multiarch_dir
, 1, NULL
);
5284 do_spec_1 (" ", 0, NULL
);
5287 if (gcc_exec_prefix
)
5289 do_spec_1 ("-iprefix", 1, NULL
);
5290 /* Make this a separate argument. */
5291 do_spec_1 (" ", 0, NULL
);
5292 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5293 do_spec_1 (" ", 0, NULL
);
5296 if (target_system_root_changed
||
5297 (target_system_root
&& target_sysroot_hdrs_suffix
))
5299 do_spec_1 ("-isysroot", 1, NULL
);
5300 /* Make this a separate argument. */
5301 do_spec_1 (" ", 0, NULL
);
5302 do_spec_1 (target_system_root
, 1, NULL
);
5303 if (target_sysroot_hdrs_suffix
)
5304 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5305 do_spec_1 (" ", 0, NULL
);
5308 info
.option
= "-isystem";
5309 info
.append
= "include";
5310 info
.append_len
= strlen (info
.append
);
5311 info
.omit_relative
= false;
5312 info
.separate_options
= true;
5314 for_each_path (&include_prefixes
, false, info
.append_len
,
5317 info
.append
= "include-fixed";
5318 if (*sysroot_hdrs_suffix_spec
)
5319 info
.append
= concat (info
.append
, dir_separator_str
,
5320 multilib_dir
, NULL
);
5321 info
.append_len
= strlen (info
.append
);
5322 for_each_path (&include_prefixes
, false, info
.append_len
,
5329 int max
= n_infiles
;
5330 max
+= lang_specific_extra_outfiles
;
5332 if (HAVE_GNU_LD
&& at_file_supplied
)
5334 /* We are going to expand `%o' to `@FILE', where FILE
5335 is a newly-created temporary filename. The filenames
5336 that would usually be expanded in place of %o will be
5337 written to the temporary file. */
5342 /* Convert OUTFILES into a form suitable for writeargv. */
5344 /* Determine how many are non-NULL. */
5345 for (n_files
= 0, i
= 0; i
< max
; i
++)
5346 n_files
+= outfiles
[i
] != NULL
;
5348 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5350 /* Copy the strings over. */
5351 for (i
= 0, j
= 0; i
< max
; i
++)
5354 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5359 create_at_file (argv
);
5362 for (i
= 0; i
< max
; i
++)
5364 store_arg (outfiles
[i
], 0, 0);
5369 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5374 this_is_library_file
= 1;
5378 this_is_linker_script
= 1;
5382 outfiles
[input_file_number
] = NULL
;
5386 this_is_output_file
= 1;
5391 unsigned int cur_index
= argbuf
.length ();
5392 /* Handle the {...} following the %W. */
5394 fatal_error (input_location
,
5395 "spec %qs has invalid %<%%W%c%>", spec
, *p
);
5396 p
= handle_braces (p
+ 1);
5400 /* If any args were output, mark the last one for deletion
5402 if (argbuf
.length () != cur_index
)
5403 record_temp_file (argbuf
.last (), 0, 1);
5407 /* %x{OPTION} records OPTION for %X to output. */
5415 /* Skip past the option value and make a copy. */
5417 fatal_error (input_location
,
5418 "spec %qs has invalid %<%%x%c%>", spec
, *p
);
5421 string
= save_string (p1
+ 1, p
- p1
- 2);
5423 /* See if we already recorded this option. */
5424 FOR_EACH_VEC_ELT (linker_options
, ix
, opt
)
5425 if (! strcmp (string
, opt
))
5431 /* This option is new; add it. */
5432 add_linker_option (string
, strlen (string
));
5437 /* Dump out the options accumulated previously using %x. */
5439 do_specs_vec (linker_options
);
5442 /* Dump out the options accumulated previously using -Wa,. */
5444 do_specs_vec (assembler_options
);
5447 /* Dump out the options accumulated previously using -Wp,. */
5449 do_specs_vec (preprocessor_options
);
5452 /* Here are digits and numbers that just process
5453 a certain constant string as a spec. */
5456 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5462 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5468 value
= do_spec_1 (asm_spec
, 0, NULL
);
5474 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5481 const char *const spec
5482 = (input_file_compiler
->cpp_spec
5483 ? input_file_compiler
->cpp_spec
5485 value
= do_spec_1 (spec
, 0, NULL
);
5492 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5498 value
= do_spec_1 (link_spec
, 0, NULL
);
5504 value
= do_spec_1 (lib_spec
, 0, NULL
);
5510 if (multilib_os_dir
== NULL
)
5511 obstack_1grow (&obstack
, '.');
5513 obstack_grow (&obstack
, multilib_os_dir
,
5514 strlen (multilib_os_dir
));
5518 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5524 /* We assume there is a directory
5525 separator at the end of this string. */
5526 if (target_system_root
)
5528 obstack_grow (&obstack
, target_system_root
,
5529 strlen (target_system_root
));
5530 if (target_sysroot_suffix
)
5531 obstack_grow (&obstack
, target_sysroot_suffix
,
5532 strlen (target_sysroot_suffix
));
5537 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5542 /* Here we define characters other than letters and digits. */
5545 p
= handle_braces (p
);
5551 p
= handle_spec_function (p
, NULL
);
5557 obstack_1grow (&obstack
, '%');
5564 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5566 suffix_subst
= save_string (p
- 1, len
+ 1);
5571 /* Henceforth ignore the option(s) matching the pattern
5577 int have_wildcard
= 0;
5582 switch_option
= SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
;
5584 switch_option
= SWITCH_IGNORE
;
5586 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5589 if (p
[len
-1] == '*')
5592 for (i
= 0; i
< n_switches
; i
++)
5593 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5594 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5596 switches
[i
].live_cond
|= switch_option
;
5597 /* User switch be validated from validate_all_switches.
5598 when the definition is seen from the spec file.
5599 If not defined anywhere, will be rejected. */
5600 if (switches
[i
].known
)
5601 switches
[i
].validated
= true;
5609 if (soft_matched_part
)
5611 if (soft_matched_part
[0])
5612 do_spec_1 (soft_matched_part
, 1, NULL
);
5613 /* Only insert a space after the substitution if it is at the
5614 end of the current sequence. So if:
5616 "%{foo=*:bar%*}%{foo=*:one%*two}"
5618 matches -foo=hello then it will produce:
5620 barhello onehellotwo
5622 if (*p
== 0 || *p
== '}')
5623 do_spec_1 (" ", 0, NULL
);
5626 /* Catch the case where a spec string contains something like
5627 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5628 hand side of the :. */
5629 error ("spec failure: %<%%*%> has not been initialized by pattern match");
5632 /* Process a string found as the value of a spec given by name.
5633 This feature allows individual machine descriptions
5634 to add and use their own specs. */
5637 const char *name
= p
;
5638 struct spec_list
*sl
;
5641 /* The string after the S/P is the name of a spec that is to be
5643 while (*p
&& *p
!= ')')
5646 /* See if it's in the list. */
5647 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5648 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5650 name
= *(sl
->ptr_spec
);
5652 fnotice (stderr
, "Processing spec (%s), which is '%s'\n",
5660 value
= do_spec_1 (name
, 0, NULL
);
5665 /* Discard the closing paren. */
5672 error ("spec failure: unrecognized spec option %qc", c
);
5678 /* Backslash: treat next character as ordinary. */
5683 /* Ordinary character: put it into the current argument. */
5684 obstack_1grow (&obstack
, c
);
5688 /* End of string. If we are processing a spec function, we need to
5689 end any pending argument. */
5690 if (processing_spec_function
)
5696 /* Look up a spec function. */
5698 static const struct spec_function
*
5699 lookup_spec_function (const char *name
)
5701 const struct spec_function
*sf
;
5703 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5704 if (strcmp (sf
->name
, name
) == 0)
5710 /* Evaluate a spec function. */
5713 eval_spec_function (const char *func
, const char *args
)
5715 const struct spec_function
*sf
;
5716 const char *funcval
;
5718 /* Saved spec processing context. */
5719 vec
<const_char_p
> save_argbuf
;
5722 int save_delete_this_arg
;
5723 int save_this_is_output_file
;
5724 int save_this_is_library_file
;
5725 int save_input_from_pipe
;
5726 int save_this_is_linker_script
;
5727 const char *save_suffix_subst
;
5729 int save_growing_size
;
5730 void *save_growing_value
= NULL
;
5732 sf
= lookup_spec_function (func
);
5734 fatal_error (input_location
, "unknown spec function %qs", func
);
5736 /* Push the spec processing context. */
5737 save_argbuf
= argbuf
;
5739 save_arg_going
= arg_going
;
5740 save_delete_this_arg
= delete_this_arg
;
5741 save_this_is_output_file
= this_is_output_file
;
5742 save_this_is_library_file
= this_is_library_file
;
5743 save_this_is_linker_script
= this_is_linker_script
;
5744 save_input_from_pipe
= input_from_pipe
;
5745 save_suffix_subst
= suffix_subst
;
5747 /* If we have some object growing now, finalize it so the args and function
5748 eval proceed from a cleared context. This is needed to prevent the first
5749 constructed arg from mistakenly including the growing value. We'll push
5750 this value back on the obstack once the function evaluation is done, to
5751 restore a consistent processing context for our caller. This is fine as
5752 the address of growing objects isn't guaranteed to remain stable until
5753 they are finalized, and we expect this situation to be rare enough for
5754 the extra copy not to be an issue. */
5755 save_growing_size
= obstack_object_size (&obstack
);
5756 if (save_growing_size
> 0)
5757 save_growing_value
= obstack_finish (&obstack
);
5759 /* Create a new spec processing context, and build the function
5763 if (do_spec_2 (args
) < 0)
5764 fatal_error (input_location
, "error in args to spec function %qs", func
);
5766 /* argbuf_index is an index for the next argument to be inserted, and
5767 so contains the count of the args already inserted. */
5769 funcval
= (*sf
->func
) (argbuf
.length (),
5772 /* Pop the spec processing context. */
5774 argbuf
= save_argbuf
;
5776 arg_going
= save_arg_going
;
5777 delete_this_arg
= save_delete_this_arg
;
5778 this_is_output_file
= save_this_is_output_file
;
5779 this_is_library_file
= save_this_is_library_file
;
5780 this_is_linker_script
= save_this_is_linker_script
;
5781 input_from_pipe
= save_input_from_pipe
;
5782 suffix_subst
= save_suffix_subst
;
5784 if (save_growing_size
> 0)
5785 obstack_grow (&obstack
, save_growing_value
, save_growing_size
);
5790 /* Handle a spec function call of the form:
5794 ARGS is processed as a spec in a separate context and split into an
5795 argument vector in the normal fashion. The function returns a string
5796 containing a spec which we then process in the caller's context, or
5797 NULL if no processing is required.
5799 If RETVAL_NONNULL is not NULL, then store a bool whether function
5800 returned non-NULL. */
5803 handle_spec_function (const char *p
, bool *retval_nonnull
)
5806 const char *endp
, *funcval
;
5809 processing_spec_function
++;
5811 /* Get the function name. */
5812 for (endp
= p
; *endp
!= '\0'; endp
++)
5814 if (*endp
== '(') /* ) */
5816 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5817 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5818 fatal_error (input_location
, "malformed spec function name");
5820 if (*endp
!= '(') /* ) */
5821 fatal_error (input_location
, "no arguments for spec function");
5822 func
= save_string (p
, endp
- p
);
5825 /* Get the arguments. */
5826 for (count
= 0; *endp
!= '\0'; endp
++)
5835 else if (*endp
== '(') /* ) */
5840 fatal_error (input_location
, "malformed spec function arguments");
5841 args
= save_string (p
, endp
- p
);
5844 /* p now points to just past the end of the spec function expression. */
5846 funcval
= eval_spec_function (func
, args
);
5847 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5850 *retval_nonnull
= funcval
!= NULL
;
5855 processing_spec_function
--;
5860 /* Inline subroutine of handle_braces. Returns true if the current
5861 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5863 input_suffix_matches (const char *atom
, const char *end_atom
)
5865 return (input_suffix
5866 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5867 && input_suffix
[end_atom
- atom
] == '\0');
5870 /* Subroutine of handle_braces. Returns true if the current
5871 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
5873 input_spec_matches (const char *atom
, const char *end_atom
)
5875 return (input_file_compiler
5876 && input_file_compiler
->suffix
5877 && input_file_compiler
->suffix
[0] != '\0'
5878 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
5880 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
5883 /* Subroutine of handle_braces. Returns true if a switch
5884 matching the atom bracketed by ATOM and END_ATOM appeared on the
5887 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5890 int len
= end_atom
- atom
;
5891 int plen
= starred
? len
: -1;
5893 for (i
= 0; i
< n_switches
; i
++)
5894 if (!strncmp (switches
[i
].part1
, atom
, len
)
5895 && (starred
|| switches
[i
].part1
[len
] == '\0')
5896 && check_live_switch (i
, plen
))
5899 /* Check if a switch with separated form matching the atom.
5900 We check -D and -U switches. */
5901 else if (switches
[i
].args
!= 0)
5903 if ((*switches
[i
].part1
== 'D' || *switches
[i
].part1
== 'U')
5904 && *switches
[i
].part1
== atom
[0])
5906 if (!strncmp (switches
[i
].args
[0], &atom
[1], len
- 1)
5907 && (starred
|| (switches
[i
].part1
[1] == '\0'
5908 && switches
[i
].args
[0][len
- 1] == '\0'))
5909 && check_live_switch (i
, (starred
? 1 : -1)))
5917 /* Inline subroutine of handle_braces. Mark all of the switches which
5918 match ATOM (extends to END_ATOM; STARRED indicates whether there
5919 was a star after the atom) for later processing. */
5921 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5924 int len
= end_atom
- atom
;
5925 int plen
= starred
? len
: -1;
5927 for (i
= 0; i
< n_switches
; i
++)
5928 if (!strncmp (switches
[i
].part1
, atom
, len
)
5929 && (starred
|| switches
[i
].part1
[len
] == '\0')
5930 && check_live_switch (i
, plen
))
5931 switches
[i
].ordering
= 1;
5934 /* Inline subroutine of handle_braces. Process all the currently
5935 marked switches through give_switch, and clear the marks. */
5937 process_marked_switches (void)
5941 for (i
= 0; i
< n_switches
; i
++)
5942 if (switches
[i
].ordering
== 1)
5944 switches
[i
].ordering
= 0;
5949 /* Handle a %{ ... } construct. P points just inside the leading {.
5950 Returns a pointer one past the end of the brace block, or 0
5951 if we call do_spec_1 and that returns -1. */
5954 handle_braces (const char *p
)
5956 const char *atom
, *end_atom
;
5957 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5958 const char *orig
= p
;
5966 bool a_must_be_last
= false;
5967 bool ordered_set
= false;
5968 bool disjunct_set
= false;
5969 bool disj_matched
= false;
5970 bool disj_starred
= true;
5971 bool n_way_choice
= false;
5972 bool n_way_matched
= false;
5974 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5981 /* Scan one "atom" (S in the description above of %{}, possibly
5982 with '!', '.', '@', ',', or '*' modifiers). */
5984 a_is_suffix
= false;
5985 a_is_starred
= false;
5986 a_is_negated
= false;
5987 a_is_spectype
= false;
5991 p
++, a_is_negated
= true;
5994 if (*p
== '%' && p
[1] == ':')
5998 p
= handle_spec_function (p
+ 2, &a_matched
);
6003 p
++, a_is_suffix
= true;
6005 p
++, a_is_spectype
= true;
6008 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6009 || *p
== ',' || *p
== '.' || *p
== '@')
6014 p
++, a_is_starred
= 1;
6021 /* Substitute the switch(es) indicated by the current atom. */
6023 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
6024 || a_is_spectype
|| atom
== end_atom
)
6027 mark_matching_switches (atom
, end_atom
, a_is_starred
);
6030 process_marked_switches ();
6034 /* Substitute some text if the current atom appears as a switch
6036 disjunct_set
= true;
6040 if (atom
&& atom
== end_atom
)
6042 if (!n_way_choice
|| disj_matched
|| *p
== '|'
6043 || a_is_negated
|| a_is_suffix
|| a_is_spectype
6047 /* An empty term may appear as the last choice of an
6048 N-way choice set; it means "otherwise". */
6049 a_must_be_last
= true;
6050 disj_matched
= !n_way_matched
;
6051 disj_starred
= false;
6055 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
6059 disj_starred
= false;
6061 /* Don't bother testing this atom if we already have a
6063 if (!disj_matched
&& !n_way_matched
)
6066 /* a_matched is already set by handle_spec_function. */;
6067 else if (a_is_suffix
)
6068 a_matched
= input_suffix_matches (atom
, end_atom
);
6069 else if (a_is_spectype
)
6070 a_matched
= input_spec_matches (atom
, end_atom
);
6072 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
6074 if (a_matched
!= a_is_negated
)
6076 disj_matched
= true;
6078 d_end_atom
= end_atom
;
6085 /* Found the body, that is, the text to substitute if the
6086 current disjunction matches. */
6087 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
6088 disj_matched
&& !n_way_matched
);
6092 /* If we have an N-way choice, reset state for the next
6096 n_way_choice
= true;
6097 n_way_matched
|= disj_matched
;
6098 disj_matched
= false;
6099 disj_starred
= true;
6100 d_atom
= d_end_atom
= NULL
;
6109 while (*p
++ != '}');
6114 fatal_error (input_location
, "braced spec %qs is invalid at %qc", orig
, *p
);
6119 /* Subroutine of handle_braces. Scan and process a brace substitution body
6120 (X in the description of %{} syntax). P points one past the colon;
6121 ATOM and END_ATOM bracket the first atom which was found to be true
6122 (present) in the current disjunction; STARRED indicates whether all
6123 the atoms in the current disjunction were starred (for syntax validation);
6124 MATCHED indicates whether the disjunction matched or not, and therefore
6125 whether or not the body is to be processed through do_spec_1 or just
6126 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6130 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
6131 int starred
, int matched
)
6133 const char *body
, *end_body
;
6134 unsigned int nesting_level
;
6135 bool have_subst
= false;
6137 /* Locate the closing } or ;, honoring nested braces.
6138 Trim trailing whitespace. */
6147 if (!--nesting_level
)
6150 else if (*p
== ';' && nesting_level
== 1)
6152 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
6154 else if (*p
== '\0')
6160 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
6163 if (have_subst
&& !starred
)
6168 /* Copy the substitution body to permanent storage and execute it.
6169 If have_subst is false, this is a simple matter of running the
6170 body through do_spec_1... */
6171 char *string
= save_string (body
, end_body
- body
);
6174 if (do_spec_1 (string
, 0, NULL
) < 0)
6179 /* ... but if have_subst is true, we have to process the
6180 body once for each matching switch, with %* set to the
6181 variant part of the switch. */
6182 unsigned int hard_match_len
= end_atom
- atom
;
6185 for (i
= 0; i
< n_switches
; i
++)
6186 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
6187 && check_live_switch (i
, hard_match_len
))
6189 if (do_spec_1 (string
, 0,
6190 &switches
[i
].part1
[hard_match_len
]) < 0)
6192 /* Pass any arguments this switch has. */
6194 suffix_subst
= NULL
;
6202 fatal_error (input_location
, "braced spec body %qs is invalid", body
);
6205 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6206 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6207 spec, or -1 if either exact match or %* is used.
6209 A -O switch is obsoleted by a later -O switch. A -f, -g, -m, or -W switch
6210 whose value does not begin with "no-" is obsoleted by the same value
6211 with the "no-", similarly for a switch with the "no-" prefix. */
6214 check_live_switch (int switchnum
, int prefix_length
)
6216 const char *name
= switches
[switchnum
].part1
;
6219 /* If we already processed this switch and determined if it was
6220 live or not, return our past determination. */
6221 if (switches
[switchnum
].live_cond
!= 0)
6222 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
6223 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
6224 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
6227 /* In the common case of {<at-most-one-letter>*}, a negating
6228 switch would always match, so ignore that case. We will just
6229 send the conflicting switches to the compiler phase. */
6230 if (prefix_length
>= 0 && prefix_length
<= 1)
6233 /* Now search for duplicate in a manner that depends on the name. */
6237 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6238 if (switches
[i
].part1
[0] == 'O')
6240 switches
[switchnum
].validated
= true;
6241 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6246 case 'W': case 'f': case 'm': case 'g':
6247 if (! strncmp (name
+ 1, "no-", 3))
6249 /* We have Xno-YYY, search for XYYY. */
6250 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6251 if (switches
[i
].part1
[0] == name
[0]
6252 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6254 /* --specs are validated with the validate_switches mechanism. */
6255 if (switches
[switchnum
].known
)
6256 switches
[switchnum
].validated
= true;
6257 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6263 /* We have XYYY, search for Xno-YYY. */
6264 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6265 if (switches
[i
].part1
[0] == name
[0]
6266 && switches
[i
].part1
[1] == 'n'
6267 && switches
[i
].part1
[2] == 'o'
6268 && switches
[i
].part1
[3] == '-'
6269 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6271 /* --specs are validated with the validate_switches mechanism. */
6272 if (switches
[switchnum
].known
)
6273 switches
[switchnum
].validated
= true;
6274 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6281 /* Otherwise the switch is live. */
6282 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6286 /* Pass a switch to the current accumulating command
6287 in the same form that we received it.
6288 SWITCHNUM identifies the switch; it is an index into
6289 the vector of switches gcc received, which is `switches'.
6290 This cannot fail since it never finishes a command line.
6292 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6295 give_switch (int switchnum
, int omit_first_word
)
6297 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6300 if (!omit_first_word
)
6302 do_spec_1 ("-", 0, NULL
);
6303 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6306 if (switches
[switchnum
].args
!= 0)
6309 for (p
= switches
[switchnum
].args
; *p
; p
++)
6311 const char *arg
= *p
;
6313 do_spec_1 (" ", 0, NULL
);
6316 unsigned length
= strlen (arg
);
6319 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6320 if (arg
[length
] == '.')
6322 (CONST_CAST (char *, arg
))[length
] = 0;
6326 do_spec_1 (arg
, 1, NULL
);
6328 (CONST_CAST (char *, arg
))[length
] = '.';
6329 do_spec_1 (suffix_subst
, 1, NULL
);
6332 do_spec_1 (arg
, 1, NULL
);
6336 do_spec_1 (" ", 0, NULL
);
6337 switches
[switchnum
].validated
= true;
6340 /* Print GCC configuration (e.g. version, thread model, target,
6341 configuration_arguments) to a given FILE. */
6344 print_configuration (FILE *file
)
6349 fnotice (file
, "Target: %s\n", spec_machine
);
6350 fnotice (file
, "Configured with: %s\n", configuration_arguments
);
6352 #ifdef THREAD_MODEL_SPEC
6353 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6354 but there's no point in doing all this processing just to get
6355 thread_model back. */
6356 obstack_init (&obstack
);
6357 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6358 obstack_1grow (&obstack
, '\0');
6359 thrmod
= XOBFINISH (&obstack
, const char *);
6361 thrmod
= thread_model
;
6364 fnotice (file
, "Thread model: %s\n", thrmod
);
6366 /* compiler_version is truncated at the first space when initialized
6367 from version string, so truncate version_string at the first space
6368 before comparing. */
6369 for (n
= 0; version_string
[n
]; n
++)
6370 if (version_string
[n
] == ' ')
6373 if (! strncmp (version_string
, compiler_version
, n
)
6374 && compiler_version
[n
] == 0)
6375 fnotice (file
, "gcc version %s %s\n", version_string
,
6378 fnotice (file
, "gcc driver version %s %sexecuting gcc version %s\n",
6379 version_string
, pkgversion_string
, compiler_version
);
6383 #define RETRY_ICE_ATTEMPTS 3
6385 /* Returns true if FILE1 and FILE2 contain equivalent data, 0 otherwise. */
6388 files_equal_p (char *file1
, char *file2
)
6390 struct stat st1
, st2
;
6393 const int bufsize
= 8192;
6394 char *buf
= XNEWVEC (char, bufsize
);
6396 fd1
= open (file1
, O_RDONLY
);
6397 fd2
= open (file2
, O_RDONLY
);
6399 if (fd1
< 0 || fd2
< 0)
6402 if (fstat (fd1
, &st1
) < 0 || fstat (fd2
, &st2
) < 0)
6405 if (st1
.st_size
!= st2
.st_size
)
6408 for (n
= st1
.st_size
; n
; n
-= len
)
6411 if ((int) len
> bufsize
/ 2)
6414 if (read (fd1
, buf
, len
) != (int) len
6415 || read (fd2
, buf
+ bufsize
/ 2, len
) != (int) len
)
6420 if (memcmp (buf
, buf
+ bufsize
/ 2, len
) != 0)
6437 /* Check that compiler's output doesn't differ across runs.
6438 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are arrays of files, containing
6439 stdout and stderr for each compiler run. Return true if all of
6440 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are equivalent. */
6443 check_repro (char **temp_stdout_files
, char **temp_stderr_files
)
6446 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
- 2; ++i
)
6448 if (!files_equal_p (temp_stdout_files
[i
], temp_stdout_files
[i
+ 1])
6449 || !files_equal_p (temp_stderr_files
[i
], temp_stderr_files
[i
+ 1]))
6451 fnotice (stderr
, "The bug is not reproducible, so it is"
6452 " likely a hardware or OS problem.\n");
6456 return i
== RETRY_ICE_ATTEMPTS
- 2;
6459 enum attempt_status
{
6460 ATTEMPT_STATUS_FAIL_TO_RUN
,
6461 ATTEMPT_STATUS_SUCCESS
,
6466 /* Run compiler with arguments NEW_ARGV to reproduce the ICE, storing stdout
6467 to OUT_TEMP and stderr to ERR_TEMP. If APPEND is TRUE, append to OUT_TEMP
6468 and ERR_TEMP instead of truncating. If EMIT_SYSTEM_INFO is TRUE, also write
6469 GCC configuration into to ERR_TEMP. Return ATTEMPT_STATUS_FAIL_TO_RUN if
6470 compiler failed to run, ATTEMPT_STATUS_ICE if compiled ICE-ed and
6471 ATTEMPT_STATUS_SUCCESS otherwise. */
6473 static enum attempt_status
6474 run_attempt (const char **new_argv
, const char *out_temp
,
6475 const char *err_temp
, int emit_system_info
, int append
)
6478 if (emit_system_info
)
6480 FILE *file_out
= fopen (err_temp
, "a");
6481 print_configuration (file_out
);
6482 fputs ("\n", file_out
);
6488 struct pex_obj
*pex
;
6490 int pex_flags
= PEX_USE_PIPES
| PEX_LAST
;
6491 enum attempt_status status
= ATTEMPT_STATUS_FAIL_TO_RUN
;
6494 pex_flags
|= PEX_STDOUT_APPEND
| PEX_STDERR_APPEND
;
6496 pex
= pex_init (PEX_USE_PIPES
, new_argv
[0], NULL
);
6498 fatal_error (input_location
, "pex_init failed: %m");
6500 errmsg
= pex_run (pex
, pex_flags
, new_argv
[0],
6501 CONST_CAST2 (char *const *, const char **, &new_argv
[1]), out_temp
,
6506 fatal_error (input_location
, errmsg
);
6510 pfatal_with_name (errmsg
);
6514 if (!pex_get_status (pex
, 1, &exit_status
))
6517 switch (WEXITSTATUS (exit_status
))
6520 status
= ATTEMPT_STATUS_ICE
;
6523 case SUCCESS_EXIT_CODE
:
6524 status
= ATTEMPT_STATUS_SUCCESS
;
6536 /* This routine reads lines from IN file, adds C++ style comments
6537 at the begining of each line and writes result into OUT. */
6540 insert_comments (const char *file_in
, const char *file_out
)
6542 FILE *in
= fopen (file_in
, "rb");
6543 FILE *out
= fopen (file_out
, "wb");
6546 bool add_comment
= true;
6547 while (fgets (line
, sizeof (line
), in
))
6552 add_comment
= strchr (line
, '\n') != NULL
;
6559 /* This routine adds preprocessed source code into the given ERR_FILE.
6560 To do this, it adds "-E" to NEW_ARGV and execute RUN_ATTEMPT routine to
6561 add information in report file. RUN_ATTEMPT should return
6562 ATTEMPT_STATUS_SUCCESS, in other case we cannot generate the report. */
6565 do_report_bug (const char **new_argv
, const int nargs
,
6566 char **out_file
, char **err_file
)
6569 int fd
= open (*out_file
, O_RDWR
| O_APPEND
);
6572 write (fd
, "\n//", 3);
6573 for (i
= 0; i
< nargs
; i
++)
6576 write (fd
, new_argv
[i
], strlen (new_argv
[i
]));
6578 write (fd
, "\n\n", 2);
6580 new_argv
[nargs
] = "-E";
6581 new_argv
[nargs
+ 1] = NULL
;
6583 status
= run_attempt (new_argv
, *out_file
, *err_file
, 0, 1);
6585 if (status
== ATTEMPT_STATUS_SUCCESS
)
6587 fnotice (stderr
, "Preprocessed source stored into %s file,"
6588 " please attach this to your bugreport.\n", *out_file
);
6589 /* Make sure it is not deleted. */
6595 /* Try to reproduce ICE. If bug is reproducible, generate report .err file
6596 containing GCC configuration, backtrace, compiler's command line options
6597 and preprocessed source code. */
6600 try_generate_repro (const char **argv
)
6602 int i
, nargs
, out_arg
= -1, quiet
= 0, attempt
;
6603 const char **new_argv
;
6604 char *temp_files
[RETRY_ICE_ATTEMPTS
* 2];
6605 char **temp_stdout_files
= &temp_files
[0];
6606 char **temp_stderr_files
= &temp_files
[RETRY_ICE_ATTEMPTS
];
6608 if (gcc_input_filename
== NULL
|| ! strcmp (gcc_input_filename
, "-"))
6611 for (nargs
= 0; argv
[nargs
] != NULL
; ++nargs
)
6612 /* Only retry compiler ICEs, not preprocessor ones. */
6613 if (! strcmp (argv
[nargs
], "-E"))
6615 else if (argv
[nargs
][0] == '-' && argv
[nargs
][1] == 'o')
6622 /* If the compiler is going to output any time information,
6623 it might varry between invocations. */
6624 else if (! strcmp (argv
[nargs
], "-quiet"))
6626 else if (! strcmp (argv
[nargs
], "-ftime-report"))
6629 if (out_arg
== -1 || !quiet
)
6632 memset (temp_files
, '\0', sizeof (temp_files
));
6633 new_argv
= XALLOCAVEC (const char *, nargs
+ 4);
6634 memcpy (new_argv
, argv
, (nargs
+ 1) * sizeof (const char *));
6635 new_argv
[nargs
++] = "-frandom-seed=0";
6636 new_argv
[nargs
++] = "-fdump-noaddr";
6637 new_argv
[nargs
] = NULL
;
6638 if (new_argv
[out_arg
][2] == '\0')
6639 new_argv
[out_arg
+ 1] = "-";
6641 new_argv
[out_arg
] = "-o-";
6644 for (attempt
= 0; attempt
< RETRY_ICE_ATTEMPTS
; ++attempt
)
6646 int emit_system_info
= 0;
6648 temp_stdout_files
[attempt
] = make_temp_file (".out");
6649 temp_stderr_files
[attempt
] = make_temp_file (".err");
6651 if (attempt
== RETRY_ICE_ATTEMPTS
- 1)
6654 emit_system_info
= 1;
6657 status
= run_attempt (new_argv
, temp_stdout_files
[attempt
],
6658 temp_stderr_files
[attempt
], emit_system_info
,
6661 if (status
!= ATTEMPT_STATUS_ICE
)
6663 fnotice (stderr
, "The bug is not reproducible, so it is"
6664 " likely a hardware or OS problem.\n");
6669 if (!check_repro (temp_stdout_files
, temp_stderr_files
))
6673 /* Insert commented out backtrace into report file. */
6674 char **stderr_commented
= &temp_stdout_files
[RETRY_ICE_ATTEMPTS
- 1];
6675 insert_comments (temp_stderr_files
[RETRY_ICE_ATTEMPTS
- 1],
6678 /* In final attempt we append compiler options and preprocesssed code to last
6679 generated .out file with configuration and backtrace. */
6680 char **output
= &temp_stdout_files
[RETRY_ICE_ATTEMPTS
- 1];
6681 do_report_bug (new_argv
, nargs
, stderr_commented
, output
);
6685 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
* 2; i
++)
6688 unlink (temp_stdout_files
[i
]);
6689 free (temp_stdout_files
[i
]);
6693 /* Search for a file named NAME trying various prefixes including the
6694 user's -B prefix and some standard ones.
6695 Return the absolute file name found. If nothing is found, return NAME. */
6698 find_file (const char *name
)
6700 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
6701 return newname
? newname
: name
;
6704 /* Determine whether a directory exists. If LINKER, return 0 for
6705 certain fixed names not needed by the linker. */
6708 is_directory (const char *path1
, bool linker
)
6715 /* Ensure the string ends with "/.". The resulting path will be a
6716 directory even if the given path is a symbolic link. */
6717 len1
= strlen (path1
);
6718 path
= (char *) alloca (3 + len1
);
6719 memcpy (path
, path1
, len1
);
6721 if (!IS_DIR_SEPARATOR (cp
[-1]))
6722 *cp
++ = DIR_SEPARATOR
;
6726 /* Exclude directories that the linker is known to search. */
6728 && IS_DIR_SEPARATOR (path
[0])
6730 && filename_ncmp (path
+ 1, "lib", 3) == 0)
6732 && filename_ncmp (path
+ 1, "usr", 3) == 0
6733 && IS_DIR_SEPARATOR (path
[4])
6734 && filename_ncmp (path
+ 5, "lib", 3) == 0)))
6737 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6740 /* Set up the various global variables to indicate that we're processing
6741 the input file named FILENAME. */
6744 set_input (const char *filename
)
6748 gcc_input_filename
= filename
;
6749 input_filename_length
= strlen (gcc_input_filename
);
6750 input_basename
= lbasename (gcc_input_filename
);
6752 /* Find a suffix starting with the last period,
6753 and set basename_length to exclude that suffix. */
6754 basename_length
= strlen (input_basename
);
6755 suffixed_basename_length
= basename_length
;
6756 p
= input_basename
+ basename_length
;
6757 while (p
!= input_basename
&& *p
!= '.')
6759 if (*p
== '.' && p
!= input_basename
)
6761 basename_length
= p
- input_basename
;
6762 input_suffix
= p
+ 1;
6767 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6768 we will need to do a stat on the gcc_input_filename. The
6769 INPUT_STAT_SET signals that the stat is needed. */
6773 /* On fatal signals, delete all the temporary files. */
6776 fatal_signal (int signum
)
6778 signal (signum
, SIG_DFL
);
6779 delete_failure_queue ();
6780 delete_temp_files ();
6781 /* Get the same signal again, this time not handled,
6782 so its normal effect occurs. */
6783 kill (getpid (), signum
);
6786 /* Compare the contents of the two files named CMPFILE[0] and
6787 CMPFILE[1]. Return zero if they're identical, nonzero
6791 compare_files (char *cmpfile
[])
6794 FILE *temp
[2] = { NULL
, NULL
};
6800 void *map
[2] = { NULL
, NULL
};
6802 for (i
= 0; i
< 2; i
++)
6806 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
6808 error ("%s: could not determine length of compare-debug file %s",
6809 gcc_input_filename
, cmpfile
[i
]);
6814 length
[i
] = st
.st_size
;
6817 if (!ret
&& length
[0] != length
[1])
6819 error ("%s: -fcompare-debug failure (length)", gcc_input_filename
);
6824 for (i
= 0; i
< 2; i
++)
6826 int fd
= open (cmpfile
[i
], O_RDONLY
);
6829 error ("%s: could not open compare-debug file %s",
6830 gcc_input_filename
, cmpfile
[i
]);
6835 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
6838 if (map
[i
] == (void *) MAP_FAILED
)
6847 if (memcmp (map
[0], map
[1], length
[0]) != 0)
6849 error ("%s: -fcompare-debug failure", gcc_input_filename
);
6854 for (i
= 0; i
< 2; i
++)
6856 munmap ((caddr_t
) map
[i
], length
[i
]);
6865 for (i
= 0; i
< 2; i
++)
6867 temp
[i
] = fopen (cmpfile
[i
], "r");
6870 error ("%s: could not open compare-debug file %s",
6871 gcc_input_filename
, cmpfile
[i
]);
6877 if (!ret
&& temp
[0] && temp
[1])
6881 c0
= fgetc (temp
[0]);
6882 c1
= fgetc (temp
[1]);
6886 error ("%s: -fcompare-debug failure",
6887 gcc_input_filename
);
6896 for (i
= 1; i
>= 0; i
--)
6905 /* driver::main is implemented as a series of driver:: method calls. */
6908 driver::main (int argc
, char **argv
)
6912 set_progname (argv
[0]);
6913 expand_at_files (&argc
, &argv
);
6914 decode_argv (argc
, const_cast <const char **> (argv
));
6915 global_initializations ();
6916 build_multilib_strings ();
6918 putenv_COLLECT_GCC (argv
[0]);
6919 maybe_putenv_COLLECT_LTO_WRAPPER ();
6920 maybe_putenv_OFFLOAD_TARGETS ();
6921 handle_unrecognized_options ();
6923 if (!maybe_print_and_exit ())
6926 early_exit
= prepare_infiles ();
6928 return get_exit_code ();
6930 do_spec_on_infiles ();
6931 maybe_run_linker (argv
[0]);
6933 return get_exit_code ();
6936 /* Locate the final component of argv[0] after any leading path, and set
6937 the program name accordingly. */
6940 driver::set_progname (const char *argv0
) const
6942 const char *p
= argv0
+ strlen (argv0
);
6943 while (p
!= argv0
&& !IS_DIR_SEPARATOR (p
[-1]))
6947 xmalloc_set_program_name (progname
);
6950 /* Expand any @ files within the command-line args,
6951 setting at_file_supplied if any were expanded. */
6954 driver::expand_at_files (int *argc
, char ***argv
) const
6956 char **old_argv
= *argv
;
6958 expandargv (argc
, argv
);
6960 /* Determine if any expansions were made. */
6961 if (*argv
!= old_argv
)
6962 at_file_supplied
= true;
6965 /* Decode the command-line arguments from argc/argv into the
6966 decoded_options array. */
6969 driver::decode_argv (int argc
, const char **argv
)
6971 /* Register the language-independent parameters. */
6972 global_init_params ();
6975 init_options_struct (&global_options
, &global_options_set
);
6977 decode_cmdline_options_to_array (argc
, argv
,
6979 &decoded_options
, &decoded_options_count
);
6982 /* Perform various initializations and setup. */
6985 driver::global_initializations ()
6987 /* Unlock the stdio streams. */
6988 unlock_std_streams ();
6990 gcc_init_libintl ();
6992 diagnostic_initialize (global_dc
, 0);
6993 diagnostic_color_init (global_dc
);
6995 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6996 /* Perform host dependent initialization when needed. */
6997 GCC_DRIVER_HOST_INITIALIZATION
;
7000 if (atexit (delete_temp_files
) != 0)
7001 fatal_error (input_location
, "atexit failed");
7003 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
7004 signal (SIGINT
, fatal_signal
);
7006 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
7007 signal (SIGHUP
, fatal_signal
);
7009 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
7010 signal (SIGTERM
, fatal_signal
);
7012 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
7013 signal (SIGPIPE
, fatal_signal
);
7016 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
7017 receive the signal. A different setting is inheritable */
7018 signal (SIGCHLD
, SIG_DFL
);
7021 /* Parsing and gimplification sometimes need quite large stack.
7022 Increase stack size limits if possible. */
7023 stack_limit_increase (64 * 1024 * 1024);
7025 /* Allocate the argument vector. */
7028 obstack_init (&obstack
);
7031 /* Build multilib_select, et. al from the separate lines that make up each
7032 multilib selection. */
7035 driver::build_multilib_strings () const
7039 const char *const *q
= multilib_raw
;
7042 obstack_init (&multilib_obstack
);
7043 while ((p
= *q
++) != (char *) 0)
7044 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7046 obstack_1grow (&multilib_obstack
, 0);
7047 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
7049 q
= multilib_matches_raw
;
7050 while ((p
= *q
++) != (char *) 0)
7051 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7053 obstack_1grow (&multilib_obstack
, 0);
7054 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
7056 q
= multilib_exclusions_raw
;
7057 while ((p
= *q
++) != (char *) 0)
7058 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7060 obstack_1grow (&multilib_obstack
, 0);
7061 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
7063 q
= multilib_reuse_raw
;
7064 while ((p
= *q
++) != (char *) 0)
7065 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7067 obstack_1grow (&multilib_obstack
, 0);
7068 multilib_reuse
= XOBFINISH (&multilib_obstack
, const char *);
7071 for (size_t i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
7074 obstack_1grow (&multilib_obstack
, ' ');
7075 obstack_grow (&multilib_obstack
,
7076 multilib_defaults_raw
[i
],
7077 strlen (multilib_defaults_raw
[i
]));
7081 obstack_1grow (&multilib_obstack
, 0);
7082 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
7086 /* Set up the spec-handling machinery. */
7089 driver::set_up_specs () const
7091 const char *spec_machine_suffix
;
7095 #ifdef INIT_ENVIRONMENT
7096 /* Set up any other necessary machine specific environment variables. */
7097 xputenv (INIT_ENVIRONMENT
);
7100 /* Make a table of what switches there are (switches, n_switches).
7101 Make a table of specified input files (infiles, n_infiles).
7102 Decode switches that are handled locally. */
7104 process_command (decoded_options_count
, decoded_options
);
7106 /* Initialize the vector of specs to just the default.
7107 This means one element containing 0s, as a terminator. */
7109 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
7110 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
7111 n_compilers
= n_default_compilers
;
7113 /* Read specs from a file if there is one. */
7115 machine_suffix
= concat (spec_host_machine
, dir_separator_str
, spec_version
,
7116 accel_dir_suffix
, dir_separator_str
, NULL
);
7117 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
7119 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
7120 /* Read the specs file unless it is a default one. */
7121 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
7122 read_specs (specs_file
, true, false);
7126 #ifdef ACCEL_COMPILER
7127 spec_machine_suffix
= machine_suffix
;
7129 spec_machine_suffix
= just_machine_suffix
;
7132 /* We need to check standard_exec_prefix/spec_machine_suffix/specs
7133 for any override of as, ld and libraries. */
7134 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
7135 + strlen (spec_machine_suffix
) + sizeof ("specs"));
7136 strcpy (specs_file
, standard_exec_prefix
);
7137 strcat (specs_file
, spec_machine_suffix
);
7138 strcat (specs_file
, "specs");
7139 if (access (specs_file
, R_OK
) == 0)
7140 read_specs (specs_file
, true, false);
7142 /* Process any configure-time defaults specified for the command line
7143 options, via OPTION_DEFAULT_SPECS. */
7144 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
7145 do_option_spec (option_default_specs
[i
].name
,
7146 option_default_specs
[i
].spec
);
7148 /* Process DRIVER_SELF_SPECS, adding any new options to the end
7149 of the command line. */
7151 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
7152 do_self_spec (driver_self_specs
[i
]);
7154 /* If not cross-compiling, look for executables in the standard
7156 if (*cross_compile
== '0')
7158 if (*md_exec_prefix
)
7160 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
7161 PREFIX_PRIORITY_LAST
, 0, 0);
7165 /* Process sysroot_suffix_spec. */
7166 if (*sysroot_suffix_spec
!= 0
7167 && !no_sysroot_suffix
7168 && do_spec_2 (sysroot_suffix_spec
) == 0)
7170 if (argbuf
.length () > 1)
7171 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
7172 else if (argbuf
.length () == 1)
7173 target_sysroot_suffix
= xstrdup (argbuf
.last ());
7176 #ifdef HAVE_LD_SYSROOT
7177 /* Pass the --sysroot option to the linker, if it supports that. If
7178 there is a sysroot_suffix_spec, it has already been processed by
7179 this point, so target_system_root really is the system root we
7181 if (target_system_root
)
7183 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
7184 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
7185 set_spec ("link", XOBFINISH (&obstack
, const char *), false);
7189 /* Process sysroot_hdrs_suffix_spec. */
7190 if (*sysroot_hdrs_suffix_spec
!= 0
7191 && !no_sysroot_suffix
7192 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
7194 if (argbuf
.length () > 1)
7195 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
7196 else if (argbuf
.length () == 1)
7197 target_sysroot_hdrs_suffix
= xstrdup (argbuf
.last ());
7200 /* Look for startfiles in the standard places. */
7201 if (*startfile_prefix_spec
!= 0
7202 && do_spec_2 (startfile_prefix_spec
) == 0
7203 && do_spec_1 (" ", 0, NULL
) == 0)
7207 FOR_EACH_VEC_ELT (argbuf
, ndx
, arg
)
7208 add_sysrooted_prefix (&startfile_prefixes
, arg
, "BINUTILS",
7209 PREFIX_PRIORITY_LAST
, 0, 1);
7211 /* We should eventually get rid of all these and stick to
7212 startfile_prefix_spec exclusively. */
7213 else if (*cross_compile
== '0' || target_system_root
)
7215 if (*md_startfile_prefix
)
7216 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
7217 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7219 if (*md_startfile_prefix_1
)
7220 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
7221 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7223 /* If standard_startfile_prefix is relative, base it on
7224 standard_exec_prefix. This lets us move the installed tree
7225 as a unit. If GCC_EXEC_PREFIX is defined, base
7226 standard_startfile_prefix on that as well.
7228 If the prefix is relative, only search it for native compilers;
7229 otherwise we will search a directory containing host libraries. */
7230 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
7231 add_sysrooted_prefix (&startfile_prefixes
,
7232 standard_startfile_prefix
, "BINUTILS",
7233 PREFIX_PRIORITY_LAST
, 0, 1);
7234 else if (*cross_compile
== '0')
7236 add_prefix (&startfile_prefixes
,
7237 concat (gcc_exec_prefix
7238 ? gcc_exec_prefix
: standard_exec_prefix
,
7240 standard_startfile_prefix
, NULL
),
7241 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
7244 /* Sysrooted prefixes are relocated because target_system_root is
7245 also relocated by gcc_exec_prefix. */
7246 if (*standard_startfile_prefix_1
)
7247 add_sysrooted_prefix (&startfile_prefixes
,
7248 standard_startfile_prefix_1
, "BINUTILS",
7249 PREFIX_PRIORITY_LAST
, 0, 1);
7250 if (*standard_startfile_prefix_2
)
7251 add_sysrooted_prefix (&startfile_prefixes
,
7252 standard_startfile_prefix_2
, "BINUTILS",
7253 PREFIX_PRIORITY_LAST
, 0, 1);
7256 /* Process any user specified specs in the order given on the command
7258 for (struct user_specs
*uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
7260 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
7262 read_specs (filename
? filename
: uptr
->filename
, false, true);
7265 /* Process any user self specs. */
7267 struct spec_list
*sl
;
7268 for (sl
= specs
; sl
; sl
= sl
->next
)
7269 if (sl
->name_len
== sizeof "self_spec" - 1
7270 && !strcmp (sl
->name
, "self_spec"))
7271 do_self_spec (*sl
->ptr_spec
);
7276 enum save_temps save
;
7278 if (!compare_debug_second
)
7280 n_switches_debug_check
[1] = n_switches
;
7281 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
7282 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
7285 do_self_spec ("%:compare-debug-self-opt()");
7286 n_switches_debug_check
[0] = n_switches
;
7287 n_switches_alloc_debug_check
[0] = n_switches_alloc
;
7288 switches_debug_check
[0] = switches
;
7290 n_switches
= n_switches_debug_check
[1];
7291 n_switches_alloc
= n_switches_alloc_debug_check
[1];
7292 switches
= switches_debug_check
[1];
7295 /* Avoid crash when computing %j in this early. */
7296 save
= save_temps_flag
;
7297 save_temps_flag
= SAVE_TEMPS_NONE
;
7299 compare_debug
= -compare_debug
;
7300 do_self_spec ("%:compare-debug-self-opt()");
7302 save_temps_flag
= save
;
7304 if (!compare_debug_second
)
7306 n_switches_debug_check
[1] = n_switches
;
7307 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
7308 switches_debug_check
[1] = switches
;
7309 compare_debug
= -compare_debug
;
7310 n_switches
= n_switches_debug_check
[0];
7311 n_switches_alloc
= n_switches_debug_check
[0];
7312 switches
= switches_debug_check
[0];
7317 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
7318 if (gcc_exec_prefix
)
7319 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_host_machine
,
7320 dir_separator_str
, spec_version
,
7321 accel_dir_suffix
, dir_separator_str
, NULL
);
7323 /* Now we have the specs.
7324 Set the `valid' bits for switches that match anything in any spec. */
7326 validate_all_switches ();
7328 /* Now that we have the switches and the specs, set
7329 the subdirectory based on the options. */
7330 set_multilib_dir ();
7333 /* Set up to remember the pathname of gcc and any options
7334 needed for collect. We use argv[0] instead of progname because
7335 we need the complete pathname. */
7338 driver::putenv_COLLECT_GCC (const char *argv0
) const
7340 obstack_init (&collect_obstack
);
7341 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
7342 obstack_grow (&collect_obstack
, argv0
, strlen (argv0
) + 1);
7343 xputenv (XOBFINISH (&collect_obstack
, char *));
7346 /* Set up to remember the pathname of the lto wrapper. */
7349 driver::maybe_putenv_COLLECT_LTO_WRAPPER () const
7351 char *lto_wrapper_file
;
7354 lto_wrapper_file
= NULL
;
7356 lto_wrapper_file
= find_a_file (&exec_prefixes
, "lto-wrapper",
7358 if (lto_wrapper_file
)
7360 lto_wrapper_file
= convert_white_space (lto_wrapper_file
);
7361 lto_wrapper_spec
= lto_wrapper_file
;
7362 obstack_init (&collect_obstack
);
7363 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
7364 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
7365 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
7366 strlen (lto_wrapper_spec
) + 1);
7367 xputenv (XOBFINISH (&collect_obstack
, char *));
7372 /* Set up to remember the names of offload targets. */
7375 driver::maybe_putenv_OFFLOAD_TARGETS () const
7377 const char *targets
= offload_targets
;
7379 /* If no targets specified by -foffload, use all available targets. */
7381 targets
= OFFLOAD_TARGETS
;
7383 if (strlen (targets
) > 0)
7385 obstack_grow (&collect_obstack
, "OFFLOAD_TARGET_NAMES=",
7386 sizeof ("OFFLOAD_TARGET_NAMES=") - 1);
7387 obstack_grow (&collect_obstack
, targets
,
7388 strlen (targets
) + 1);
7389 xputenv (XOBFINISH (&collect_obstack
, char *));
7392 free (offload_targets
);
7395 /* Reject switches that no pass was interested in. */
7398 driver::handle_unrecognized_options () const
7400 for (size_t i
= 0; (int) i
< n_switches
; i
++)
7401 if (! switches
[i
].validated
)
7402 error ("unrecognized command line option %<-%s%>", switches
[i
].part1
);
7405 /* Handle the various -print-* options, returning 0 if the driver
7406 should exit, or nonzero if the driver should continue. */
7409 driver::maybe_print_and_exit () const
7411 if (print_search_dirs
)
7413 printf (_("install: %s\n"), STD_EXEC_PATH
);
7414 printf (_("programs: %s\n"),
7415 build_search_list (&exec_prefixes
, "", false, false));
7416 printf (_("libraries: %s\n"),
7417 build_search_list (&startfile_prefixes
, "", false, true));
7421 if (print_file_name
)
7423 printf ("%s\n", find_file (print_file_name
));
7427 if (print_prog_name
)
7429 if (use_ld
!= NULL
&& ! strcmp (print_prog_name
, "ld"))
7431 /* Append USE_LD to to the default linker. */
7432 #ifdef DEFAULT_LINKER
7434 # ifdef HAVE_HOST_EXECUTABLE_SUFFIX
7435 int len
= (sizeof (DEFAULT_LINKER
)
7436 - sizeof (HOST_EXECUTABLE_SUFFIX
));
7440 char *default_linker
= xstrdup (DEFAULT_LINKER
);
7441 /* Strip HOST_EXECUTABLE_SUFFIX if DEFAULT_LINKER contains
7442 HOST_EXECUTABLE_SUFFIX. */
7443 if (! strcmp (&default_linker
[len
], HOST_EXECUTABLE_SUFFIX
))
7445 default_linker
[len
] = '\0';
7446 ld
= concat (default_linker
, use_ld
,
7447 HOST_EXECUTABLE_SUFFIX
, NULL
);
7452 ld
= concat (DEFAULT_LINKER
, use_ld
, NULL
);
7453 if (access (ld
, X_OK
) == 0)
7455 printf ("%s\n", ld
);
7459 print_prog_name
= concat (print_prog_name
, use_ld
, NULL
);
7461 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
7462 printf ("%s\n", (newname
? newname
: print_prog_name
));
7466 if (print_multi_lib
)
7468 print_multilib_info ();
7472 if (print_multi_directory
)
7474 if (multilib_dir
== NULL
)
7477 printf ("%s\n", multilib_dir
);
7481 if (print_multiarch
)
7483 if (multiarch_dir
== NULL
)
7486 printf ("%s\n", multiarch_dir
);
7492 if (target_system_root
)
7494 if (target_sysroot_suffix
)
7495 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
7497 printf ("%s\n", target_system_root
);
7502 if (print_multi_os_directory
)
7504 if (multilib_os_dir
== NULL
)
7507 printf ("%s\n", multilib_os_dir
);
7511 if (print_sysroot_headers_suffix
)
7513 if (*sysroot_hdrs_suffix_spec
)
7515 printf("%s\n", (target_sysroot_hdrs_suffix
7516 ? target_sysroot_hdrs_suffix
7521 /* The error status indicates that only one set of fixed
7522 headers should be built. */
7523 fatal_error (input_location
,
7524 "not configured with sysroot headers suffix");
7527 if (print_help_list
)
7533 printf (_("\nFor bug reporting instructions, please see:\n"));
7534 printf ("%s.\n", bug_report_url
);
7539 /* We do not exit here. Instead we have created a fake input file
7540 called 'help-dummy' which needs to be compiled, and we pass this
7541 on the various sub-processes, along with the --help switch.
7542 Ensure their output appears after ours. */
7543 fputc ('\n', stdout
);
7549 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
7551 printf ("Copyright %s 2015 Free Software Foundation, Inc.\n",
7553 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
7554 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
7559 /* We do not exit here. We use the same mechanism of --help to print
7560 the version of the sub-processes. */
7561 fputc ('\n', stdout
);
7567 print_configuration (stderr
);
7575 /* Figure out what to do with each input file.
7576 Return true if we need to exit early from "main", false otherwise. */
7579 driver::prepare_infiles ()
7582 int lang_n_infiles
= 0;
7584 if (n_infiles
== added_libraries
)
7585 fatal_error (input_location
, "no input files");
7588 /* Early exit needed from main. */
7591 /* Make a place to record the compiler output file names
7592 that correspond to the input files. */
7595 i
+= lang_specific_extra_outfiles
;
7596 outfiles
= XCNEWVEC (const char *, i
);
7598 /* Record which files were specified explicitly as link input. */
7600 explicit_link_files
= XCNEWVEC (char, n_infiles
);
7602 combine_inputs
= have_o
|| flag_wpa
;
7604 for (i
= 0; (int) i
< n_infiles
; i
++)
7606 const char *name
= infiles
[i
].name
;
7607 struct compiler
*compiler
= lookup_compiler (name
,
7609 infiles
[i
].language
);
7611 if (compiler
&& !(compiler
->combinable
))
7612 combine_inputs
= false;
7614 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
7615 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
7616 infiles
[i
].incompiler
= compiler
;
7620 input_file_compiler
= compiler
;
7621 infiles
[i
].incompiler
= compiler
;
7625 /* Since there is no compiler for this input file, assume it is a
7627 explicit_link_files
[i
] = 1;
7628 infiles
[i
].incompiler
= NULL
;
7630 infiles
[i
].compiled
= false;
7631 infiles
[i
].preprocessed
= false;
7634 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
7635 fatal_error (input_location
,
7636 "cannot specify -o with -c, -S or -E with multiple files");
7638 /* No early exit needed from main; we can continue. */
7642 /* Run the spec machinery on each input file. */
7645 driver::do_spec_on_infiles () const
7649 for (i
= 0; (int) i
< n_infiles
; i
++)
7651 int this_file_error
= 0;
7653 /* Tell do_spec what to substitute for %i. */
7655 input_file_number
= i
;
7656 set_input (infiles
[i
].name
);
7658 if (infiles
[i
].compiled
)
7661 /* Use the same thing in %o, unless cp->spec says otherwise. */
7663 outfiles
[i
] = gcc_input_filename
;
7665 /* Figure out which compiler from the file's suffix. */
7668 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
7669 infiles
[i
].language
);
7671 if (input_file_compiler
)
7673 /* Ok, we found an applicable compiler. Run its spec. */
7675 if (input_file_compiler
->spec
[0] == '#')
7677 error ("%s: %s compiler not installed on this system",
7678 gcc_input_filename
, &input_file_compiler
->spec
[1]);
7679 this_file_error
= 1;
7687 free (debug_check_temp_file
[0]);
7688 debug_check_temp_file
[0] = NULL
;
7690 free (debug_check_temp_file
[1]);
7691 debug_check_temp_file
[1] = NULL
;
7694 value
= do_spec (input_file_compiler
->spec
);
7695 infiles
[i
].compiled
= true;
7697 this_file_error
= 1;
7698 else if (compare_debug
&& debug_check_temp_file
[0])
7701 inform (0, "recompiling with -fcompare-debug");
7703 compare_debug
= -compare_debug
;
7704 n_switches
= n_switches_debug_check
[1];
7705 n_switches_alloc
= n_switches_alloc_debug_check
[1];
7706 switches
= switches_debug_check
[1];
7708 value
= do_spec (input_file_compiler
->spec
);
7710 compare_debug
= -compare_debug
;
7711 n_switches
= n_switches_debug_check
[0];
7712 n_switches_alloc
= n_switches_alloc_debug_check
[0];
7713 switches
= switches_debug_check
[0];
7717 error ("during -fcompare-debug recompilation");
7718 this_file_error
= 1;
7721 gcc_assert (debug_check_temp_file
[1]
7722 && filename_cmp (debug_check_temp_file
[0],
7723 debug_check_temp_file
[1]));
7726 inform (0, "comparing final insns dumps");
7728 if (compare_files (debug_check_temp_file
))
7729 this_file_error
= 1;
7734 free (debug_check_temp_file
[0]);
7735 debug_check_temp_file
[0] = NULL
;
7737 free (debug_check_temp_file
[1]);
7738 debug_check_temp_file
[1] = NULL
;
7743 /* If this file's name does not contain a recognized suffix,
7744 record it as explicit linker input. */
7747 explicit_link_files
[i
] = 1;
7749 /* Clear the delete-on-failure queue, deleting the files in it
7750 if this compilation failed. */
7752 if (this_file_error
)
7754 delete_failure_queue ();
7757 /* If this compilation succeeded, don't delete those files later. */
7758 clear_failure_queue ();
7761 /* Reset the input file name to the first compile/object file name, for use
7762 with %b in LINK_SPEC. We use the first input file that we can find
7763 a compiler to compile it instead of using infiles.language since for
7764 languages other than C we use aliases that we then lookup later. */
7769 for (i
= 0; i
< n_infiles
; i
++)
7770 if (infiles
[i
].incompiler
7771 || (infiles
[i
].language
&& infiles
[i
].language
[0] != '*'))
7773 set_input (infiles
[i
].name
);
7780 /* Make sure INPUT_FILE_NUMBER points to first available open
7782 input_file_number
= n_infiles
;
7783 if (lang_specific_pre_link ())
7788 /* If we have to run the linker, do it now. */
7791 driver::maybe_run_linker (const char *argv0
) const
7794 int linker_was_run
= 0;
7795 int num_linker_inputs
;
7797 /* Determine if there are any linker input files. */
7798 num_linker_inputs
= 0;
7799 for (i
= 0; (int) i
< n_infiles
; i
++)
7800 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
7801 num_linker_inputs
++;
7803 /* Run ld to link all the compiler output files. */
7805 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
7807 int tmp
= execution_count
;
7811 #if HAVE_LTO_PLUGIN > 0
7812 #if HAVE_LTO_PLUGIN == 2
7813 const char *fno_use_linker_plugin
= "fno-use-linker-plugin";
7815 const char *fuse_linker_plugin
= "fuse-linker-plugin";
7819 /* We'll use ld if we can't find collect2. */
7820 if (! strcmp (linker_name_spec
, "collect2"))
7822 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
7824 linker_name_spec
= "ld";
7827 #if HAVE_LTO_PLUGIN > 0
7828 #if HAVE_LTO_PLUGIN == 2
7829 if (!switch_matches (fno_use_linker_plugin
,
7830 fno_use_linker_plugin
7831 + strlen (fno_use_linker_plugin
), 0))
7833 if (switch_matches (fuse_linker_plugin
,
7835 + strlen (fuse_linker_plugin
), 0))
7838 char *temp_spec
= find_a_file (&exec_prefixes
,
7839 LTOPLUGINSONAME
, R_OK
,
7842 fatal_error (input_location
,
7843 "-fuse-linker-plugin, but %s not found",
7845 linker_plugin_file_spec
= convert_white_space (temp_spec
);
7848 lto_gcc_spec
= argv0
;
7851 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
7853 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
7854 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
7856 if (print_subprocess_help
== 1)
7858 printf (_("\nLinker options\n==============\n\n"));
7859 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
7860 " to the linker.\n\n"));
7863 int value
= do_spec (link_command_spec
);
7866 linker_was_run
= (tmp
!= execution_count
);
7869 /* If options said don't run linker,
7870 complain about input files to be given to the linker. */
7872 if (! linker_was_run
&& !seen_error ())
7873 for (i
= 0; (int) i
< n_infiles
; i
++)
7874 if (explicit_link_files
[i
]
7875 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
7876 warning (0, "%s: linker input file unused because linking not done",
7880 /* The end of "main". */
7883 driver::final_actions () const
7885 /* Delete some or all of the temporary files we made. */
7888 delete_failure_queue ();
7889 delete_temp_files ();
7891 if (print_help_list
)
7893 printf (("\nFor bug reporting instructions, please see:\n"));
7894 printf ("%s\n", bug_report_url
);
7898 /* Determine what the exit code of the driver should be. */
7901 driver::get_exit_code () const
7903 return (signal_count
!= 0 ? 2
7904 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
7908 /* Find the proper compilation spec for the file name NAME,
7909 whose length is LENGTH. LANGUAGE is the specified language,
7910 or 0 if this file is to be passed to the linker. */
7912 static struct compiler
*
7913 lookup_compiler (const char *name
, size_t length
, const char *language
)
7915 struct compiler
*cp
;
7917 /* If this was specified by the user to be a linker input, indicate that. */
7918 if (language
!= 0 && language
[0] == '*')
7921 /* Otherwise, look for the language, if one is spec'd. */
7924 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7925 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
7928 error ("language %s not recognized", language
);
7932 /* Look for a suffix. */
7933 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7935 if (/* The suffix `-' matches only the file name `-'. */
7936 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7937 || (strlen (cp
->suffix
) < length
7938 /* See if the suffix matches the end of NAME. */
7939 && !strcmp (cp
->suffix
,
7940 name
+ length
- strlen (cp
->suffix
))
7945 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
7946 /* Look again, but case-insensitively this time. */
7948 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7950 if (/* The suffix `-' matches only the file name `-'. */
7951 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7952 || (strlen (cp
->suffix
) < length
7953 /* See if the suffix matches the end of NAME. */
7954 && ((!strcmp (cp
->suffix
,
7955 name
+ length
- strlen (cp
->suffix
))
7956 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
7957 && !strcasecmp (cp
->suffix
,
7958 name
+ length
- strlen (cp
->suffix
)))
7964 if (cp
>= compilers
)
7966 if (cp
->spec
[0] != '@')
7967 /* A non-alias entry: return it. */
7970 /* An alias entry maps a suffix to a language.
7971 Search for the language; pass 0 for NAME and LENGTH
7972 to avoid infinite recursion if language not found. */
7973 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
7979 save_string (const char *s
, int len
)
7981 char *result
= XNEWVEC (char, len
+ 1);
7983 memcpy (result
, s
, len
);
7989 pfatal_with_name (const char *name
)
7991 perror_with_name (name
);
7992 delete_temp_files ();
7997 perror_with_name (const char *name
)
7999 error ("%s: %m", name
);
8003 validate_switches_from_spec (const char *spec
, bool user
)
8005 const char *p
= spec
;
8008 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
8009 /* We have a switch spec. */
8010 p
= validate_switches (p
+ 1, user
);
8014 validate_all_switches (void)
8016 struct compiler
*comp
;
8017 struct spec_list
*spec
;
8019 for (comp
= compilers
; comp
->spec
; comp
++)
8020 validate_switches_from_spec (comp
->spec
, false);
8022 /* Look through the linked list of specs read from the specs file. */
8023 for (spec
= specs
; spec
; spec
= spec
->next
)
8024 validate_switches_from_spec (*spec
->ptr_spec
, spec
->user_p
);
8026 validate_switches_from_spec (link_command_spec
, false);
8029 /* Look at the switch-name that comes after START
8030 and mark as valid all supplied switches that match it. */
8033 validate_switches (const char *start
, bool user_spec
)
8035 const char *p
= start
;
8039 bool suffix
= false;
8040 bool starred
= false;
8042 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
8051 if (*p
== '.' || *p
== ',')
8055 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
8056 || *p
== ',' || *p
== '.' || *p
== '@')
8061 starred
= true, p
++;
8067 /* Mark all matching switches as valid. */
8068 for (i
= 0; i
< n_switches
; i
++)
8069 if (!strncmp (switches
[i
].part1
, atom
, len
)
8070 && (starred
|| switches
[i
].part1
[len
] == '\0')
8071 && (switches
[i
].known
|| user_spec
))
8072 switches
[i
].validated
= true;
8076 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
8079 if (*p
&& p
[-1] == ':')
8081 while (*p
&& *p
!= ';' && *p
!= '}')
8086 if (*p
== '{' || *p
== '<')
8087 p
= validate_switches (p
+1, user_spec
);
8088 else if (p
[0] == 'W' && p
[1] == '{')
8089 p
= validate_switches (p
+2, user_spec
);
8096 if (*p
&& p
[-1] == ';')
8110 static struct mdswitchstr
*mdswitches
;
8111 static int n_mdswitches
;
8113 /* Check whether a particular argument was used. The first time we
8114 canonicalize the switches to keep only the ones we care about. */
8117 used_arg (const char *p
, int len
)
8122 const char *replace
;
8127 static struct mswitchstr
*mswitches
;
8128 static int n_mswitches
;
8133 struct mswitchstr
*matches
;
8137 /* Break multilib_matches into the component strings of string
8138 and replacement string. */
8139 for (q
= multilib_matches
; *q
!= '\0'; q
++)
8144 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
8146 q
= multilib_matches
;
8155 fatal_error (input_location
, "multilib spec %qs is invalid",
8160 matches
[i
].len
= q
- matches
[i
].str
;
8162 matches
[i
].replace
= ++q
;
8163 while (*q
!= ';' && *q
!= '\0')
8166 goto invalid_matches
;
8169 matches
[i
].rep_len
= q
- matches
[i
].replace
;
8175 /* Now build a list of the replacement string for switches that we care
8176 about. Make sure we allocate at least one entry. This prevents
8177 xmalloc from calling fatal, and prevents us from re-executing this
8180 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
8181 for (i
= 0; i
< n_switches
; i
++)
8182 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
8184 int xlen
= strlen (switches
[i
].part1
);
8185 for (j
= 0; j
< cnt
; j
++)
8186 if (xlen
== matches
[j
].len
8187 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
8189 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
8190 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
8191 mswitches
[n_mswitches
].replace
= (char *) 0;
8192 mswitches
[n_mswitches
].rep_len
= 0;
8198 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
8199 on the command line nor any options mutually incompatible with
8201 for (i
= 0; i
< n_mdswitches
; i
++)
8205 for (q
= multilib_options
; *q
!= '\0'; *q
&& q
++)
8211 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
8212 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
8214 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8221 if (*q
!= ' ' && *q
!= '\0')
8223 while (*r
!= ' ' && *r
!= '\0')
8226 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8229 if (used_arg (r
, q
- r
))
8234 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
8235 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
8236 mswitches
[n_mswitches
].replace
= (char *) 0;
8237 mswitches
[n_mswitches
].rep_len
= 0;
8250 for (i
= 0; i
< n_mswitches
; i
++)
8251 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
8258 default_arg (const char *p
, int len
)
8262 for (i
= 0; i
< n_mdswitches
; i
++)
8263 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
8269 /* Work out the subdirectory to use based on the options. The format of
8270 multilib_select is a list of elements. Each element is a subdirectory
8271 name followed by a list of options followed by a semicolon. The format
8272 of multilib_exclusions is the same, but without the preceding
8273 directory. First gcc will check the exclusions, if none of the options
8274 beginning with an exclamation point are present, and all of the other
8275 options are present, then we will ignore this completely. Passing
8276 that, gcc will consider each multilib_select in turn using the same
8277 rules for matching the options. If a match is found, that subdirectory
8279 A subdirectory name is optionally followed by a colon and the corresponding
8283 set_multilib_dir (void)
8286 unsigned int this_path_len
;
8287 const char *this_path
, *this_arg
;
8288 const char *start
, *end
;
8290 int ok
, ndfltok
, first
;
8293 start
= multilib_defaults
;
8294 while (*start
== ' ' || *start
== '\t')
8296 while (*start
!= '\0')
8299 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
8301 while (*start
== ' ' || *start
== '\t')
8309 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
8310 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
8312 while (*start
== ' ' || *start
== '\t')
8318 for (end
= start
+ 1;
8319 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
8322 obstack_grow (&multilib_obstack
, start
, end
- start
);
8323 obstack_1grow (&multilib_obstack
, 0);
8324 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
8325 mdswitches
[i
++].len
= end
- start
;
8332 p
= multilib_exclusions
;
8335 /* Ignore newlines. */
8342 /* Check the arguments. */
8349 fatal_error (input_location
, "multilib exclusions %qs is invalid",
8350 multilib_exclusions
);
8360 while (*p
!= ' ' && *p
!= ';')
8363 goto invalid_exclusions
;
8367 if (*this_arg
!= '!')
8375 ok
= used_arg (this_arg
, p
- this_arg
);
8390 p
= multilib_select
;
8392 /* Append multilib reuse rules if any. With those rules, we can reuse
8393 one multilib for certain different options sets. */
8394 if (strlen (multilib_reuse
) > 0)
8395 p
= concat (p
, multilib_reuse
, NULL
);
8399 /* Ignore newlines. */
8406 /* Get the initial path. */
8413 fatal_error (input_location
, "multilib select %qs %qs is invalid",
8414 multilib_select
, multilib_reuse
);
8418 this_path_len
= p
- this_path
;
8420 /* Check the arguments. */
8427 goto invalid_select
;
8436 while (*p
!= ' ' && *p
!= ';')
8439 goto invalid_select
;
8443 if (*this_arg
!= '!')
8451 /* If this is a default argument, we can just ignore it.
8452 This is true even if this_arg begins with '!'. Beginning
8453 with '!' does not mean that this argument is necessarily
8454 inappropriate for this library: it merely means that
8455 there is a more specific library which uses this
8456 argument. If this argument is a default, we need not
8457 consider that more specific library. */
8458 ok
= used_arg (this_arg
, p
- this_arg
);
8465 if (default_arg (this_arg
, p
- this_arg
))
8474 if (this_path_len
!= 1
8475 || this_path
[0] != '.')
8477 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
8480 strncpy (new_multilib_dir
, this_path
, this_path_len
);
8481 new_multilib_dir
[this_path_len
] = '\0';
8482 q
= strchr (new_multilib_dir
, ':');
8485 multilib_dir
= new_multilib_dir
;
8492 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
8494 while (q
< end
&& *q
!= ':')
8498 const char *q2
= q
+ 1, *ml_end
= end
;
8499 char *new_multilib_os_dir
;
8501 while (q2
< end
&& *q2
!= ':')
8505 if (ml_end
- q
== 1)
8506 multilib_os_dir
= xstrdup (".");
8509 new_multilib_os_dir
= XNEWVEC (char, ml_end
- q
);
8510 memcpy (new_multilib_os_dir
, q
+ 1, ml_end
- q
- 1);
8511 new_multilib_os_dir
[ml_end
- q
- 1] = '\0';
8512 multilib_os_dir
= new_multilib_os_dir
;
8515 if (q2
< end
&& *q2
== ':')
8517 char *new_multiarch_dir
= XNEWVEC (char, end
- q2
);
8518 memcpy (new_multiarch_dir
, q2
+ 1, end
- q2
- 1);
8519 new_multiarch_dir
[end
- q2
- 1] = '\0';
8520 multiarch_dir
= new_multiarch_dir
;
8529 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
8530 && strcmp (multilib_os_dir
, ".") == 0)
8532 free (CONST_CAST (char *, multilib_os_dir
));
8533 multilib_os_dir
= NULL
;
8535 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
8536 multilib_os_dir
= multilib_dir
;
8539 /* Print out the multiple library subdirectory selection
8540 information. This prints out a series of lines. Each line looks
8541 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
8542 required. Only the desired options are printed out, the negative
8543 matches. The options are print without a leading dash. There are
8544 no spaces to make it easy to use the information in the shell.
8545 Each subdirectory is printed only once. This assumes the ordering
8546 generated by the genmultilib script. Also, we leave out ones that match
8550 print_multilib_info (void)
8552 const char *p
= multilib_select
;
8553 const char *last_path
= 0, *this_path
;
8555 unsigned int last_path_len
= 0;
8560 /* Ignore newlines. */
8567 /* Get the initial path. */
8574 fatal_error (input_location
,
8575 "multilib select %qs is invalid", multilib_select
);
8581 /* When --disable-multilib was used but target defines
8582 MULTILIB_OSDIRNAMES, entries starting with .: (and not starting
8583 with .:: for multiarch configurations) are there just to find
8584 multilib_os_dir, so skip them from output. */
8585 if (this_path
[0] == '.' && this_path
[1] == ':' && this_path
[2] != ':')
8588 /* Check for matches with the multilib_exclusions. We don't bother
8589 with the '!' in either list. If any of the exclusion rules match
8590 all of its options with the select rule, we skip it. */
8592 const char *e
= multilib_exclusions
;
8593 const char *this_arg
;
8598 /* Ignore newlines. */
8605 /* Check the arguments. */
8614 fatal_error (input_location
,
8615 "multilib exclusion %qs is invalid",
8616 multilib_exclusions
);
8627 while (*e
!= ' ' && *e
!= ';')
8630 goto invalid_exclusion
;
8638 int len
= e
- this_arg
;
8641 goto invalid_select
;
8645 while (*q
!= ' ' && *q
!= ';')
8648 goto invalid_select
;
8652 if (! strncmp (arg
, this_arg
,
8653 (len
< q
- arg
) ? q
- arg
: len
)
8654 || default_arg (this_arg
, e
- this_arg
))
8684 /* If this is a duplicate, skip it. */
8685 skip
= (last_path
!= 0
8686 && (unsigned int) (p
- this_path
) == last_path_len
8687 && ! filename_ncmp (last_path
, this_path
, last_path_len
));
8689 last_path
= this_path
;
8690 last_path_len
= p
- this_path
;
8693 /* If this directory requires any default arguments, we can skip
8694 it. We will already have printed a directory identical to
8695 this one which does not require that default argument. */
8706 goto invalid_select
;
8713 while (*q
!= ' ' && *q
!= ';')
8716 goto invalid_select
;
8721 && default_arg (arg
, q
- arg
))
8736 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
8747 goto invalid_select
;
8755 use_arg
= *p
!= '!';
8760 while (*p
!= ' ' && *p
!= ';')
8763 goto invalid_select
;
8775 /* If there are extra options, print them now. */
8776 if (multilib_extra
&& *multilib_extra
)
8778 int print_at
= TRUE
;
8781 for (q
= multilib_extra
; *q
!= '\0'; q
++)
8802 /* getenv built-in spec function.
8804 Returns the value of the environment variable given by its first
8805 argument, concatenated with the second argument. If the
8806 environment variable is not defined, a fatal error is issued. */
8809 getenv_spec_function (int argc
, const char **argv
)
8819 value
= getenv (argv
[0]);
8821 fatal_error (input_location
,
8822 "environment variable %qs not defined", argv
[0]);
8824 /* We have to escape every character of the environment variable so
8825 they are not interpreted as active spec characters. A
8826 particularly painful case is when we are reading a variable
8827 holding a windows path complete with \ separators. */
8828 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
8829 result
= XNEWVAR (char, len
);
8830 for (ptr
= result
; *value
; ptr
+= 2)
8836 strcpy (ptr
, argv
[1]);
8841 /* if-exists built-in spec function.
8843 Checks to see if the file specified by the absolute pathname in
8844 ARGS exists. Returns that pathname if found.
8846 The usual use for this function is to check for a library file
8847 (whose name has been expanded with %s). */
8850 if_exists_spec_function (int argc
, const char **argv
)
8852 /* Must have only one argument. */
8853 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8859 /* if-exists-else built-in spec function.
8861 This is like if-exists, but takes an additional argument which
8862 is returned if the first argument does not exist. */
8865 if_exists_else_spec_function (int argc
, const char **argv
)
8867 /* Must have exactly two arguments. */
8871 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8877 /* sanitize built-in spec function.
8879 This returns non-NULL, if sanitizing address, thread or
8880 any of the undefined behavior sanitizers. */
8883 sanitize_spec_function (int argc
, const char **argv
)
8888 if (strcmp (argv
[0], "address") == 0)
8889 return (flag_sanitize
& SANITIZE_USER_ADDRESS
) ? "" : NULL
;
8890 if (strcmp (argv
[0], "kernel-address") == 0)
8891 return (flag_sanitize
& SANITIZE_KERNEL_ADDRESS
) ? "" : NULL
;
8892 if (strcmp (argv
[0], "thread") == 0)
8893 return (flag_sanitize
& SANITIZE_THREAD
) ? "" : NULL
;
8894 if (strcmp (argv
[0], "undefined") == 0)
8895 return ((flag_sanitize
& (SANITIZE_UNDEFINED
| SANITIZE_NONDEFAULT
))
8896 && !flag_sanitize_undefined_trap_on_error
) ? "" : NULL
;
8897 if (strcmp (argv
[0], "leak") == 0)
8898 return ((flag_sanitize
8899 & (SANITIZE_ADDRESS
| SANITIZE_LEAK
| SANITIZE_THREAD
))
8900 == SANITIZE_LEAK
) ? "" : NULL
;
8904 /* replace-outfile built-in spec function.
8906 This looks for the first argument in the outfiles array's name and
8907 replaces it with the second argument. */
8910 replace_outfile_spec_function (int argc
, const char **argv
)
8913 /* Must have exactly two arguments. */
8917 for (i
= 0; i
< n_infiles
; i
++)
8919 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
8920 outfiles
[i
] = xstrdup (argv
[1]);
8925 /* remove-outfile built-in spec function.
8927 * This looks for the first argument in the outfiles array's name and
8931 remove_outfile_spec_function (int argc
, const char **argv
)
8934 /* Must have exactly one argument. */
8938 for (i
= 0; i
< n_infiles
; i
++)
8940 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
8946 /* Given two version numbers, compares the two numbers.
8947 A version number must match the regular expression
8948 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
8951 compare_version_strings (const char *v1
, const char *v2
)
8956 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
8957 REG_EXTENDED
| REG_NOSUB
) != 0)
8959 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
8960 if (rresult
== REG_NOMATCH
)
8961 fatal_error (input_location
, "invalid version number %qs", v1
);
8962 else if (rresult
!= 0)
8964 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
8965 if (rresult
== REG_NOMATCH
)
8966 fatal_error (input_location
, "invalid version number %qs", v2
);
8967 else if (rresult
!= 0)
8970 return strverscmp (v1
, v2
);
8974 /* version_compare built-in spec function.
8976 This takes an argument of the following form:
8978 <comparison-op> <arg1> [<arg2>] <switch> <result>
8980 and produces "result" if the comparison evaluates to true,
8981 and nothing if it doesn't.
8983 The supported <comparison-op> values are:
8985 >= true if switch is a later (or same) version than arg1
8987 < true if switch is an earlier version than arg1
8989 >< true if switch is arg1 or later, and earlier than arg2
8990 <> true if switch is earlier than arg1 or is arg2 or later
8992 If the switch is not present, the condition is false unless
8993 the first character of the <comparison-op> is '!'.
8996 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
8997 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
9000 version_compare_spec_function (int argc
, const char **argv
)
9004 const char *switch_value
= NULL
;
9009 fatal_error (input_location
, "too few arguments to %%:version-compare");
9010 if (argv
[0][0] == '\0')
9012 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
9014 if (argc
!= nargs
+ 3)
9015 fatal_error (input_location
, "too many arguments to %%:version-compare");
9017 switch_len
= strlen (argv
[nargs
+ 1]);
9018 for (i
= 0; i
< n_switches
; i
++)
9019 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
9020 && check_live_switch (i
, switch_len
))
9021 switch_value
= switches
[i
].part1
+ switch_len
;
9023 if (switch_value
== NULL
)
9027 comp1
= compare_version_strings (switch_value
, argv
[1]);
9029 comp2
= compare_version_strings (switch_value
, argv
[2]);
9031 comp2
= -1; /* This value unused. */
9034 switch (argv
[0][0] << 8 | argv
[0][1])
9036 case '>' << 8 | '=':
9037 result
= comp1
>= 0;
9039 case '!' << 8 | '<':
9040 result
= comp1
>= 0 || switch_value
== NULL
;
9045 case '!' << 8 | '>':
9046 result
= comp1
< 0 || switch_value
== NULL
;
9048 case '>' << 8 | '<':
9049 result
= comp1
>= 0 && comp2
< 0;
9051 case '<' << 8 | '>':
9052 result
= comp1
< 0 || comp2
>= 0;
9056 fatal_error (input_location
,
9057 "unknown operator %qs in %%:version-compare", argv
[0]);
9062 return argv
[nargs
+ 2];
9065 /* %:include builtin spec function. This differs from %include in that it
9066 can be nested inside a spec, and thus be conditionalized. It takes
9067 one argument, the filename, and looks for it in the startfile path.
9068 The result is always NULL, i.e. an empty expansion. */
9071 include_spec_function (int argc
, const char **argv
)
9078 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
9079 read_specs (file
? file
: argv
[0], false, false);
9084 /* %:find-file spec function. This function replaces its argument by
9085 the file found through find_file, that is the -print-file-name gcc
9088 find_file_spec_function (int argc
, const char **argv
)
9095 file
= find_file (argv
[0]);
9100 /* %:find-plugindir spec function. This function replaces its argument
9101 by the -iplugindir=<dir> option. `dir' is found through find_file, that
9102 is the -print-file-name gcc program option. */
9104 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
9111 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
9116 /* %:print-asm-header spec function. Print a banner to say that the
9117 following output is from the assembler. */
9120 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
9121 const char **argv ATTRIBUTE_UNUSED
)
9123 printf (_("Assembler options\n=================\n\n"));
9124 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
9129 /* Get a random number for -frandom-seed */
9131 static unsigned HOST_WIDE_INT
9132 get_random_number (void)
9134 unsigned HOST_WIDE_INT ret
= 0;
9137 fd
= open ("/dev/urandom", O_RDONLY
);
9140 read (fd
, &ret
, sizeof (HOST_WIDE_INT
));
9146 /* Get some more or less random data. */
9147 #ifdef HAVE_GETTIMEOFDAY
9151 gettimeofday (&tv
, NULL
);
9152 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
9156 time_t now
= time (NULL
);
9158 if (now
!= (time_t)-1)
9159 ret
= (unsigned) now
;
9163 return ret
^ getpid ();
9166 /* %:compare-debug-dump-opt spec function. Save the last argument,
9167 expected to be the last -fdump-final-insns option, or generate a
9171 compare_debug_dump_opt_spec_function (int arg
,
9172 const char **argv ATTRIBUTE_UNUSED
)
9177 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
9180 fatal_error (input_location
,
9181 "too many arguments to %%:compare-debug-dump-opt");
9183 do_spec_2 ("%{fdump-final-insns=*:%*}");
9184 do_spec_1 (" ", 0, NULL
);
9186 if (argbuf
.length () > 0
9187 && strcmp (argv
[argbuf
.length () - 1], "."))
9192 name
= xstrdup (argv
[argbuf
.length () - 1]);
9197 const char *ext
= NULL
;
9199 if (argbuf
.length () > 0)
9201 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
9204 else if (!compare_debug
)
9207 do_spec_2 ("%g.gkd");
9209 do_spec_1 (" ", 0, NULL
);
9211 gcc_assert (argbuf
.length () > 0);
9213 name
= concat (argbuf
.last (), ext
, NULL
);
9215 ret
= concat ("-fdump-final-insns=", name
, NULL
);
9218 which
= compare_debug
< 0;
9219 debug_check_temp_file
[which
] = name
;
9223 unsigned HOST_WIDE_INT value
= get_random_number ();
9225 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
9231 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
9242 static const char *debug_auxbase_opt
;
9244 /* %:compare-debug-self-opt spec function. Expands to the options
9245 that are to be passed in the second compilation of
9249 compare_debug_self_opt_spec_function (int arg
,
9250 const char **argv ATTRIBUTE_UNUSED
)
9253 fatal_error (input_location
,
9254 "too many arguments to %%:compare-debug-self-opt");
9256 if (compare_debug
>= 0)
9259 do_spec_2 ("%{c|S:%{o*:%*}}");
9260 do_spec_1 (" ", 0, NULL
);
9262 if (argbuf
.length () > 0)
9263 debug_auxbase_opt
= concat ("-auxbase-strip ",
9267 debug_auxbase_opt
= NULL
;
9270 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
9271 %<fdump-final-insns=* -w -S -o %j \
9272 %{!fcompare-debug-second:-fcompare-debug-second} \
9273 ", compare_debug_opt
, NULL
);
9276 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
9277 options that are to be passed in the second compilation of
9278 compare-debug. It expects, as an argument, the basename of the
9279 current input file name, with the .gk suffix appended to it. */
9282 compare_debug_auxbase_opt_spec_function (int arg
,
9289 fatal_error (input_location
,
9290 "too few arguments to %%:compare-debug-auxbase-opt");
9293 fatal_error (input_location
,
9294 "too many arguments to %%:compare-debug-auxbase-opt");
9296 if (compare_debug
>= 0)
9299 len
= strlen (argv
[0]);
9300 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
9301 fatal_error (input_location
, "argument to %%:compare-debug-auxbase-opt "
9302 "does not end in .gk");
9304 if (debug_auxbase_opt
)
9305 return debug_auxbase_opt
;
9307 #define OPT "-auxbase "
9310 name
= (char*) xmalloc (sizeof (OPT
) + len
);
9311 memcpy (name
, OPT
, sizeof (OPT
) - 1);
9312 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
9313 name
[sizeof (OPT
) - 1 + len
] = '\0';
9320 /* %:pass-through-libs spec function. Finds all -l options and input
9321 file names in the lib spec passed to it, and makes a list of them
9322 prepended with the plugin option to cause them to be passed through
9323 to the final link after all the new object files have been added. */
9326 pass_through_libs_spec_func (int argc
, const char **argv
)
9328 char *prepended
= xstrdup (" ");
9330 /* Shlemiel the painter's algorithm. Innately horrible, but at least
9331 we know that there will never be more than a handful of strings to
9332 concat, and it's only once per run, so it's not worth optimising. */
9333 for (n
= 0; n
< argc
; n
++)
9335 char *old
= prepended
;
9336 /* Anything that isn't an option is a full path to an output
9337 file; pass it through if it ends in '.a'. Among options,
9339 if (argv
[n
][0] == '-' && argv
[n
][1] == 'l')
9341 const char *lopt
= argv
[n
] + 2;
9342 /* Handle both joined and non-joined -l options. If for any
9343 reason there's a trailing -l with no joined or following
9344 arg just discard it. */
9345 if (!*lopt
&& ++n
>= argc
)
9349 prepended
= concat (prepended
, "-plugin-opt=-pass-through=-l",
9352 else if (!strcmp (".a", argv
[n
] + strlen (argv
[n
]) - 2))
9354 prepended
= concat (prepended
, "-plugin-opt=-pass-through=",
9355 argv
[n
], " ", NULL
);
9357 if (prepended
!= old
)
9363 /* %:replace-extension spec function. Replaces the extension of the
9364 first argument with the second argument. */
9367 replace_extension_spec_func (int argc
, const char **argv
)
9375 fatal_error (input_location
, "too few arguments to %%:replace-extension");
9377 name
= xstrdup (argv
[0]);
9379 for (i
= strlen (name
) - 1; i
>= 0; i
--)
9380 if (IS_DIR_SEPARATOR (name
[i
]))
9383 p
= strrchr (name
+ i
+ 1, '.');
9387 result
= concat (name
, argv
[1], NULL
);
9393 /* Insert backslash before spaces in ORIG (usually a file path), to
9394 avoid being broken by spec parser.
9396 This function is needed as do_spec_1 treats white space (' ' and '\t')
9397 as the end of an argument. But in case of -plugin /usr/gcc install/xxx.so,
9398 the file name should be treated as a single argument rather than being
9399 broken into multiple. Solution is to insert '\\' before the space in a
9402 This function converts and only converts all occurrence of ' '
9403 to '\\' + ' ' and '\t' to '\\' + '\t'. For example:
9407 "a\\ b" -> "a\\\\ b"
9409 orig: input null-terminating string that was allocated by xalloc. The
9410 memory it points to might be freed in this function. Behavior undefined
9411 if ORIG wasn't xalloced or was freed already at entry.
9413 Return: ORIG if no conversion needed. Otherwise a newly allocated string
9414 that was converted from ORIG. */
9417 convert_white_space (char *orig
)
9419 int len
, number_of_space
= 0;
9421 for (len
= 0; orig
[len
]; len
++)
9422 if (orig
[len
] == ' ' || orig
[len
] == '\t') number_of_space
++;
9424 if (number_of_space
)
9426 char *new_spec
= (char *) xmalloc (len
+ number_of_space
+ 1);
9428 for (j
= 0, k
= 0; j
<= len
; j
++, k
++)
9430 if (orig
[j
] == ' ' || orig
[j
] == '\t')
9431 new_spec
[k
++] = '\\';
9432 new_spec
[k
] = orig
[j
];
9442 Targets can provide configure-time default options in
9443 OPTION_DEFAULT_SPECS. The jit needs to access these, but
9444 they are expressed in the spec language.
9446 Run just enough of the driver to be able to expand these
9447 specs, and then call the callback CB on each
9448 such option. The options strings are *without* a leading
9449 '-' character e.g. ("march=x86-64"). Finally, clean up. */
9452 driver_get_configure_time_options (void (*cb
) (const char *option
,
9458 obstack_init (&obstack
);
9459 gcc_obstack_init (&opts_obstack
);
9462 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
9463 do_option_spec (option_default_specs
[i
].name
,
9464 option_default_specs
[i
].spec
);
9466 for (i
= 0; (int) i
< n_switches
; i
++)
9468 gcc_assert (switches
[i
].part1
);
9469 (*cb
) (switches
[i
].part1
, user_data
);
9472 obstack_free (&opts_obstack
, NULL
);
9473 obstack_free (&obstack
, NULL
);