1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
5 Free Software Foundation, Inc.
7 This file is part of GCC.
9 GCC is free software; you can redistribute it and/or modify it under
10 the terms of the GNU General Public License as published by the Free
11 Software Foundation; either version 3, or (at your option) any later
14 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
15 WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 You should have received a copy of the GNU General Public License
20 along with GCC; see the file COPYING3. If not see
21 <http://www.gnu.org/licenses/>. */
23 /* This program is the user interface to the C compiler and possibly to
24 other compilers. It is used because compilation is a complicated procedure
25 which involves running several programs and passing temporary files between
26 them, forwarding the users switches to those programs selectively,
27 and deleting the temporary files at the end.
29 CC recognizes how to compile each input file by suffixes in the file names.
30 Once it knows which kind of compilation to perform, the procedure for
31 compilation is specified by a string called a "spec". */
35 #include "coretypes.h"
36 #include "multilib.h" /* before tm.h */
43 #include "diagnostic.h"
48 #include "filenames.h"
50 /* By default there is no special suffix for target executables. */
51 /* FIXME: when autoconf is fixed, remove the host check - dj */
52 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
53 #define HAVE_TARGET_EXECUTABLE_SUFFIX
56 /* By default there is no special suffix for host executables. */
57 #ifdef HOST_EXECUTABLE_SUFFIX
58 #define HAVE_HOST_EXECUTABLE_SUFFIX
60 #define HOST_EXECUTABLE_SUFFIX ""
63 /* By default, the suffix for target object files is ".o". */
64 #ifdef TARGET_OBJECT_SUFFIX
65 #define HAVE_TARGET_OBJECT_SUFFIX
67 #define TARGET_OBJECT_SUFFIX ".o"
70 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
72 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
73 #ifndef LIBRARY_PATH_ENV
74 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
77 /* If a stage of compilation returns an exit status >= 1,
78 compilation of that file ceases. */
80 #define MIN_FATAL_STATUS 1
82 /* Flag set by cppspec.c to 1. */
85 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
86 static bool at_file_supplied
;
88 /* Definition of string containing the arguments given to configure. */
89 #include "configargs.h"
91 /* Flag saying to print the command line options understood by gcc and its
94 static int print_help_list
;
96 /* Flag saying to print the version of gcc and its sub-processes. */
98 static int print_version
;
100 /* Flag indicating whether we should ONLY print the command and
101 arguments (like verbose_flag) without executing the command.
102 Displayed arguments are quoted so that the generated command
103 line is suitable for execution. This is intended for use in
104 shell scripts to capture the driver-generated command line. */
105 static int verbose_only_flag
;
107 /* Flag indicating how to print command line options of sub-processes. */
109 static int print_subprocess_help
;
111 /* Whether we should report subprocess execution times to a file. */
113 FILE *report_times_to_file
= NULL
;
115 /* Nonzero means place this string before uses of /, so that include
116 and library files can be found in an alternate location. */
118 #ifdef TARGET_SYSTEM_ROOT
119 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
121 static const char *target_system_root
= 0;
124 /* Nonzero means pass the updated target_system_root to the compiler. */
126 static int target_system_root_changed
;
128 /* Nonzero means append this string to target_system_root. */
130 static const char *target_sysroot_suffix
= 0;
132 /* Nonzero means append this string to target_system_root for headers. */
134 static const char *target_sysroot_hdrs_suffix
= 0;
136 /* Nonzero means write "temp" files in source directory
137 and use the source file's name in them, and don't delete them. */
139 static enum save_temps
{
140 SAVE_TEMPS_NONE
, /* no -save-temps */
141 SAVE_TEMPS_CWD
, /* -save-temps in current directory */
142 SAVE_TEMPS_OBJ
/* -save-temps in object directory */
145 /* Output file to use to get the object directory for -save-temps=obj */
146 static char *save_temps_prefix
= 0;
147 static size_t save_temps_length
= 0;
149 /* The compiler version. */
151 static const char *compiler_version
;
153 /* The target version. */
155 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
157 /* The target machine. */
159 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
161 /* Nonzero if cross-compiling.
162 When -b is used, the value comes from the `specs' file. */
164 #ifdef CROSS_DIRECTORY_STRUCTURE
165 static const char *cross_compile
= "1";
167 static const char *cross_compile
= "0";
170 /* Greatest exit code of sub-processes that has been encountered up to
172 static int greatest_status
= 1;
174 /* This is the obstack which we use to allocate many strings. */
176 static struct obstack obstack
;
178 /* This is the obstack to build an environment variable to pass to
179 collect2 that describes all of the relevant switches of what to
180 pass the compiler in building the list of pointers to constructors
183 static struct obstack collect_obstack
;
185 /* Forward declaration for prototypes. */
189 static void init_spec (void);
190 static void store_arg (const char *, int, int);
191 static void insert_wrapper (const char *);
192 static char *load_specs (const char *);
193 static void read_specs (const char *, bool, bool);
194 static void set_spec (const char *, const char *, bool);
195 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
196 static char *build_search_list (const struct path_prefix
*, const char *,
198 static void xputenv (const char *);
199 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
201 static int access_check (const char *, int);
202 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
203 static void add_prefix (struct path_prefix
*, const char *, const char *,
205 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
206 const char *, int, int, int);
207 static char *skip_whitespace (char *);
208 static void delete_if_ordinary (const char *);
209 static void delete_temp_files (void);
210 static void delete_failure_queue (void);
211 static void clear_failure_queue (void);
212 static int check_live_switch (int, int);
213 static const char *handle_braces (const char *);
214 static inline bool input_suffix_matches (const char *, const char *);
215 static inline bool switch_matches (const char *, const char *, int);
216 static inline void mark_matching_switches (const char *, const char *, int);
217 static inline void process_marked_switches (void);
218 static const char *process_brace_body (const char *, const char *, const char *, int, int);
219 static const struct spec_function
*lookup_spec_function (const char *);
220 static const char *eval_spec_function (const char *, const char *);
221 static const char *handle_spec_function (const char *);
222 static char *save_string (const char *, int);
223 static void set_collect_gcc_options (void);
224 static int do_spec_1 (const char *, int, const char *);
225 static int do_spec_2 (const char *);
226 static void do_option_spec (const char *, const char *);
227 static void do_self_spec (const char *);
228 static const char *find_file (const char *);
229 static int is_directory (const char *, bool);
230 static const char *validate_switches (const char *, bool);
231 static void validate_all_switches (void);
232 static inline void validate_switches_from_spec (const char *, bool);
233 static void give_switch (int, int);
234 static int used_arg (const char *, int);
235 static int default_arg (const char *, int);
236 static void set_multilib_dir (void);
237 static void print_multilib_info (void);
238 static void perror_with_name (const char *);
239 static void display_help (void);
240 static void add_preprocessor_option (const char *, int);
241 static void add_assembler_option (const char *, int);
242 static void add_linker_option (const char *, int);
243 static void process_command (unsigned int, struct cl_decoded_option
*);
244 static int execute (void);
245 static void alloc_args (void);
246 static void clear_args (void);
247 static void fatal_signal (int);
248 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
249 static void init_gcc_specs (struct obstack
*, const char *, const char *,
252 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
253 static const char *convert_filename (const char *, int, int);
256 static const char *getenv_spec_function (int, const char **);
257 static const char *if_exists_spec_function (int, const char **);
258 static const char *if_exists_else_spec_function (int, const char **);
259 static const char *replace_outfile_spec_function (int, const char **);
260 static const char *remove_outfile_spec_function (int, const char **);
261 static const char *version_compare_spec_function (int, const char **);
262 static const char *include_spec_function (int, const char **);
263 static const char *find_file_spec_function (int, const char **);
264 static const char *find_plugindir_spec_function (int, const char **);
265 static const char *print_asm_header_spec_function (int, const char **);
266 static const char *compare_debug_dump_opt_spec_function (int, const char **);
267 static const char *compare_debug_self_opt_spec_function (int, const char **);
268 static const char *compare_debug_auxbase_opt_spec_function (int, const char **);
269 static const char *pass_through_libs_spec_func (int, const char **);
270 static const char *replace_extension_spec_func (int, const char **);
272 /* The Specs Language
274 Specs are strings containing lines, each of which (if not blank)
275 is made up of a program name, and arguments separated by spaces.
276 The program name must be exact and start from root, since no path
277 is searched and it is unreliable to depend on the current working directory.
278 Redirection of input or output is not supported; the subprograms must
279 accept filenames saying what files to read and write.
281 In addition, the specs can contain %-sequences to substitute variable text
282 or for conditional text. Here is a table of all defined %-sequences.
283 Note that spaces are not generated automatically around the results of
284 expanding these sequences; therefore, you can concatenate them together
285 or with constant text in a single argument.
287 %% substitute one % into the program name or argument.
288 %i substitute the name of the input file being processed.
289 %b substitute the basename of the input file being processed.
290 This is the substring up to (and not including) the last period
291 and not including the directory unless -save-temps was specified
292 to put temporaries in a different location.
293 %B same as %b, but include the file suffix (text after the last period).
295 substitute a file name that has suffix SUFFIX and is chosen
296 once per compilation, and mark the argument a la %d. To reduce
297 exposure to denial-of-service attacks, the file name is now
298 chosen in a way that is hard to predict even when previously
299 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
300 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
301 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
302 had been pre-processed. Previously, %g was simply substituted
303 with a file name chosen once per compilation, without regard
304 to any appended suffix (which was therefore treated just like
305 ordinary text), making such attacks more likely to succeed.
307 like %g, but if -pipe is in effect, expands simply to "-".
309 like %g, but if -pipe is in effect, expands to nothing. (We have both
310 %| and %m to accommodate differences between system assemblers; see
311 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
313 like %g, but generates a new temporary file name even if %uSUFFIX
316 substitutes the last file name generated with %uSUFFIX, generating a
317 new one if there is no such last file name. In the absence of any
318 %uSUFFIX, this is just like %gSUFFIX, except they don't share
319 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
320 would involve the generation of two distinct file names, one
321 for each `%g.s' and another for each `%U.s'. Previously, %U was
322 simply substituted with a file name chosen for the previous %u,
323 without regard to any appended suffix.
325 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
326 writable, and if save-temps is off; otherwise, substitute the name
327 of a temporary file, just like %u. This temporary file is not
328 meant for communication between processes, but rather as a junk
331 substitutes .SUFFIX for the suffixes of a matched switch's args when
332 it is subsequently output with %*. SUFFIX is terminated by the next
334 %d marks the argument containing or following the %d as a
335 temporary file name, so that that file will be deleted if GCC exits
336 successfully. Unlike %g, this contributes no text to the argument.
337 %w marks the argument containing or following the %w as the
338 "output file" of this compilation. This puts the argument
339 into the sequence of arguments that %o will substitute later.
340 %V indicates that this compilation produces no "output file".
342 like %{...} but mark last argument supplied within
343 as a file to be deleted on failure.
344 %o substitutes the names of all the output files, with spaces
345 automatically placed around them. You should write spaces
346 around the %o as well or the results are undefined.
347 %o is for use in the specs for running the linker.
348 Input files whose names have no recognized suffix are not compiled
349 at all, but they are included among the output files, so they will
351 %O substitutes the suffix for object files. Note that this is
352 handled specially when it immediately follows %g, %u, or %U
353 (with or without a suffix argument) because of the need for
354 those to form complete file names. The handling is such that
355 %O is treated exactly as if it had already been substituted,
356 except that %g, %u, and %U do not currently support additional
357 SUFFIX characters following %O as they would following, for
359 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
360 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
361 and -B options) and -imultilib as necessary.
362 %s current argument is the name of a library or startup file of some sort.
363 Search for that file in a standard list of directories
364 and substitute the full name found.
365 %eSTR Print STR as an error message. STR is terminated by a newline.
366 Use this when inconsistent options are detected.
367 %nSTR Print STR as a notice. STR is terminated by a newline.
368 %x{OPTION} Accumulate an option for %X.
369 %X Output the accumulated linker options specified by compilations.
370 %Y Output the accumulated assembler options specified by compilations.
371 %Z Output the accumulated preprocessor options specified by compilations.
372 %a process ASM_SPEC as a spec.
373 This allows config.h to specify part of the spec for running as.
374 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
375 used here. This can be used to run a post-processor after the
376 assembler has done its job.
377 %D Dump out a -L option for each directory in startfile_prefixes.
378 If multilib_dir is set, extra entries are generated with it affixed.
379 %l process LINK_SPEC as a spec.
380 %L process LIB_SPEC as a spec.
381 %M Output multilib_os_dir.
382 %G process LIBGCC_SPEC as a spec.
383 %R Output the concatenation of target_system_root and
384 target_sysroot_suffix.
385 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
386 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
387 %C process CPP_SPEC as a spec.
388 %1 process CC1_SPEC as a spec.
389 %2 process CC1PLUS_SPEC as a spec.
390 %* substitute the variable part of a matched option. (See below.)
391 Note that each comma in the substituted string is replaced by
393 %<S remove all occurrences of -S from the command line.
394 Note - this command is position dependent. % commands in the
395 spec string before this one will see -S, % commands in the
396 spec string after this one will not.
397 %>S Similar to "%<S", but keep it in the GCC command line.
398 %<S* remove all occurrences of all switches beginning with -S from the
401 Call the named function FUNCTION, passing it ARGS. ARGS is
402 first processed as a nested spec string, then split into an
403 argument vector in the usual fashion. The function returns
404 a string which is processed as if it had appeared literally
405 as part of the current spec.
406 %{S} substitutes the -S switch, if that switch was given to GCC.
407 If that switch was not specified, this substitutes nothing.
408 Here S is a metasyntactic variable.
409 %{S*} substitutes all the switches specified to GCC whose names start
410 with -S. This is used for -o, -I, etc; switches that take
411 arguments. GCC considers `-o foo' as being one switch whose
412 name starts with `o'. %{o*} would substitute this text,
413 including the space; thus, two arguments would be generated.
414 %{S*&T*} likewise, but preserve order of S and T options (the order
415 of S and T in the spec is not significant). Can be any number
416 of ampersand-separated variables; for each the wild card is
417 optional. Useful for CPP as %{D*&U*&A*}.
419 %{S:X} substitutes X, if the -S switch was given to GCC.
420 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
421 %{S*:X} substitutes X if one or more switches whose names start
422 with -S was given to GCC. Normally X is substituted only
423 once, no matter how many such switches appeared. However,
424 if %* appears somewhere in X, then X will be substituted
425 once for each matching switch, with the %* replaced by the
426 part of that switch that matched the '*'.
427 %{.S:X} substitutes X, if processing a file with suffix S.
428 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
429 %{,S:X} substitutes X, if processing a file which will use spec S.
430 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
432 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
433 combined with '!', '.', ',', and '*' as above binding stronger
435 If %* appears in X, all of the alternatives must be starred, and
436 only the first matching alternative is substituted.
437 %{S:X; if S was given to GCC, substitutes X;
438 T:Y; else if T was given to GCC, substitutes Y;
439 :D} else substitutes D. There can be as many clauses as you need.
440 This may be combined with '.', '!', ',', '|', and '*' as above.
442 %(Spec) processes a specification defined in a specs file as *Spec:
444 The conditional text X in a %{S:X} or similar construct may contain
445 other nested % constructs or spaces, or even newlines. They are
446 processed as usual, as described above. Trailing white space in X is
447 ignored. White space may also appear anywhere on the left side of the
448 colon in these constructs, except between . or * and the corresponding
451 The -O, -f, -g, -m, and -W switches are handled specifically in these
452 constructs. If another value of -O or the negated form of a -f, -m, or
453 -W switch is found later in the command line, the earlier switch
454 value is ignored, except with {S*} where S is just one letter; this
455 passes all matching options.
457 The character | at the beginning of the predicate text is used to indicate
458 that a command should be piped to the following command, but only if -pipe
461 Note that it is built into GCC which switches take arguments and which
462 do not. You might think it would be useful to generalize this to
463 allow each compiler's spec to say which switches take arguments. But
464 this cannot be done in a consistent fashion. GCC cannot even decide
465 which input files have been specified without knowing which switches
466 take arguments, and it must know which input files to compile in order
467 to tell which compilers to run.
469 GCC also knows implicitly that arguments starting in `-l' are to be
470 treated as compiler output files, and passed to the linker in their
471 proper position among the other output files. */
473 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
475 /* config.h can define ASM_SPEC to provide extra args to the assembler
476 or extra switch-translations. */
481 /* config.h can define ASM_FINAL_SPEC to run a post processor after
482 the assembler has run. */
483 #ifndef ASM_FINAL_SPEC
484 #define ASM_FINAL_SPEC \
486 objcopy --extract-dwo \
487 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
488 %{c:%{o*:%:replace-extension(%{o*:%*} .dwo)}%{!o*:%b.dwo}}%{!c:%b.dwo} \n\
489 objcopy --strip-dwo \
490 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
494 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
495 or extra switch-translations. */
500 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
501 or extra switch-translations. */
506 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
507 or extra switch-translations. */
509 #define CC1PLUS_SPEC ""
512 /* config.h can define LINK_SPEC to provide extra args to the linker
513 or extra switch-translations. */
518 /* config.h can define LIB_SPEC to override the default libraries. */
520 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
525 /* XXX: valid only for GNU ld */
526 /* XXX: should exactly match hooks provided by libmudflap.a */
527 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
528 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
529 --wrap=mmap --wrap=mmap64 --wrap=munmap --wrap=alloca\
530 } %{fmudflapth: --wrap=pthread_create\
531 }} %{fmudflap|fmudflapth: --wrap=main}"
534 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
537 /* When using -fsplit-stack we need to wrap pthread_create, in order
538 to initialize the stack guard. We always use wrapping, rather than
539 shared library ordering, and we keep the wrapper function in
540 libgcc. This is not yet a real spec, though it could become one;
541 it is currently just stuffed into LINK_SPEC. FIXME: This wrapping
542 only works with GNU ld and gold. FIXME: This is incompatible with
543 -fmudflap when linking statically, which wants to do its own
545 #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
548 #ifdef HAVE_LD_STATIC_DYNAMIC
549 #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \
550 "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}"
552 #define LIBASAN_SPEC "-lasan"
556 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
559 #if defined(REAL_LIBGCC_SPEC)
560 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
561 #elif defined(LINK_LIBGCC_SPECIAL_1)
562 /* Have gcc do the search for libgcc.a. */
563 #define LIBGCC_SPEC "libgcc.a%s"
565 #define LIBGCC_SPEC "-lgcc"
569 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
570 #ifndef STARTFILE_SPEC
571 #define STARTFILE_SPEC \
572 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
575 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
577 #define ENDFILE_SPEC ""
581 #define LINKER_NAME "collect2"
584 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
585 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
590 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
592 #ifndef ASM_DEBUG_SPEC
593 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
594 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
595 # define ASM_DEBUG_SPEC \
596 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
597 ? "%{!g0:%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}}" ASM_MAP \
598 : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
600 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
601 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP
603 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
604 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP
608 #ifndef ASM_DEBUG_SPEC
609 # define ASM_DEBUG_SPEC ""
612 /* Here is the spec for running the linker, after compiling all files. */
614 /* This is overridable by the target in case they need to specify the
615 -lgcc and -lc order specially, yet not require them to override all
616 of LINK_COMMAND_SPEC. */
617 #ifndef LINK_GCC_C_SEQUENCE_SPEC
618 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
621 #ifndef LINK_SSP_SPEC
622 #ifdef TARGET_LIBC_PROVIDES_SSP
623 #define LINK_SSP_SPEC "%{fstack-protector:}"
625 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
629 #ifndef LINK_PIE_SPEC
631 #define LINK_PIE_SPEC "%{pie:-pie} "
633 #define LINK_PIE_SPEC "%{pie:} "
637 #ifndef LINK_BUILDID_SPEC
638 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
639 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
643 /* Conditional to test whether the LTO plugin is used or not.
644 FIXME: For slim LTO we will need to enable plugin unconditionally. This
645 still cause problems with PLUGIN_LD != LD and when plugin is built but
646 not useable. For GCC 4.6 we don't support slim LTO and thus we can enable
647 plugin only when LTO is enabled. We still honor explicit
648 -fuse-linker-plugin if the linker used understands -plugin. */
650 /* The linker has some plugin support. */
651 #if HAVE_LTO_PLUGIN > 0
652 /* The linker used has full plugin support, use LTO plugin by default. */
653 #if HAVE_LTO_PLUGIN == 2
654 #define PLUGIN_COND "!fno-use-linker-plugin:%{flto|flto=*|fuse-linker-plugin"
655 #define PLUGIN_COND_CLOSE "}"
657 /* The linker used has limited plugin support, use LTO plugin with explicit
658 -fuse-linker-plugin. */
659 #define PLUGIN_COND "fuse-linker-plugin"
660 #define PLUGIN_COND_CLOSE ""
662 #define LINK_PLUGIN_SPEC \
664 -plugin %(linker_plugin_file) \
665 -plugin-opt=%(lto_wrapper) \
666 -plugin-opt=-fresolution=%u.res \
667 %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \
670 /* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */
671 #define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\
672 %e-fuse-linker-plugin is not supported in this configuration}"
676 /* -u* was put back because both BSD and SysV seem to support it. */
677 /* %{static:} simply prevents an error message if the target machine
678 doesn't handle -static. */
679 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
680 scripts which exist in user specified directories, or in standard
682 /* We pass any -flto flags on to the linker, which is expected
683 to understand them. In practice, this means it had better be collect2. */
684 /* %{e*} includes -export-dynamic; see comment in common.opt. */
685 #ifndef LINK_COMMAND_SPEC
686 #define LINK_COMMAND_SPEC "\
687 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
690 "%{flto|flto=*:%<fcompare-debug*} \
691 %{flto} %{flto=*} %l " LINK_PIE_SPEC \
692 "%X %{o*} %{e*} %{N} %{n} %{r}\
693 %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}}\
694 %{!nostdlib:%{!nostartfiles:%{fupc-link:%:include(upc-crtbegin.spec)%(upc_crtbegin)}}}\
695 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
696 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}\
697 %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
698 %{fupc-link:%:include(libgupc.spec)%(link_upc)}\
699 %(mflib) " STACK_SPLIT_SPEC "\
700 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\
701 %{faddress-sanitizer:" LIBASAN_SPEC "}\
702 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
703 %{!nostdlib:%{!nostartfiles:%{fupc-link:%:include(upc-crtend.spec)%(upc_crtend)}}}\
704 %{!nostdlib:%{!nostartfiles:%E}} %{T*} }}}}}}"
707 #ifndef LINK_LIBGCC_SPEC
708 /* Generate -L options for startfile prefix list. */
709 # define LINK_LIBGCC_SPEC "%D"
712 #ifndef STARTFILE_PREFIX_SPEC
713 # define STARTFILE_PREFIX_SPEC ""
717 # define SYSROOT_SPEC "--sysroot=%R"
720 #ifndef SYSROOT_SUFFIX_SPEC
721 # define SYSROOT_SUFFIX_SPEC ""
724 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
725 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
728 static const char *asm_debug
= ASM_DEBUG_SPEC
;
729 static const char *cpp_spec
= CPP_SPEC
;
730 static const char *cc1_spec
= CC1_SPEC
;
731 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
732 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
733 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
734 static const char *asm_spec
= ASM_SPEC
;
735 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
736 static const char *link_spec
= LINK_SPEC
;
737 static const char *lib_spec
= LIB_SPEC
;
738 static const char *mfwrap_spec
= MFWRAP_SPEC
;
739 static const char *mflib_spec
= MFLIB_SPEC
;
740 static const char *link_gomp_spec
= "";
741 static const char *upc_crtbegin_spec
= "";
742 static const char *link_upc_spec
= "";
743 static const char *upc_crtend_spec
= "";
744 static const char *libgcc_spec
= LIBGCC_SPEC
;
745 static const char *endfile_spec
= ENDFILE_SPEC
;
746 static const char *startfile_spec
= STARTFILE_SPEC
;
747 static const char *linker_name_spec
= LINKER_NAME
;
748 static const char *linker_plugin_file_spec
= "";
749 static const char *lto_wrapper_spec
= "";
750 static const char *lto_gcc_spec
= "";
751 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
752 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
753 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
754 static const char *sysroot_spec
= SYSROOT_SPEC
;
755 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
756 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
757 static const char *self_spec
= "";
759 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
760 There should be no need to override these in target dependent files,
761 but we need to copy them to the specs file so that newer versions
762 of the GCC driver can correctly drive older tool chains with the
763 appropriate -B options. */
765 /* When cpplib handles traditional preprocessing, get rid of this, and
766 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
767 that we default the front end language better. */
768 static const char *trad_capable_cpp
=
769 "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}";
771 /* We don't wrap .d files in %W{} since a missing .d file, and
772 therefore no dependency entry, confuses make into thinking a .o
773 file that happens to exist is up-to-date. */
774 static const char *cpp_unique_options
=
775 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
776 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
777 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
778 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
779 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
780 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
781 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
782 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
783 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
784 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
787 /* This contains cpp options which are common with cc1_options and are passed
788 only when preprocessing only to avoid duplication. We pass the cc1 spec
789 options to the preprocessor so that it the cc1 spec may manipulate
790 options used to set target flags. Those special target flags settings may
791 in turn cause preprocessor symbols to be defined specially. */
792 static const char *cpp_options
=
793 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
794 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
795 %{undef} %{save-temps*:-fpch-preprocess}";
797 /* This contains cpp options which are not passed when the preprocessor
798 output will be used by another program. */
799 static const char *cpp_debug_options
= "%{d*}";
801 /* NB: This is shared amongst all front-ends, except for Ada. */
802 static const char *cc1_options
=
803 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
804 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
805 %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\
806 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
807 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
808 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
809 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
810 %{Qn:-fno-ident} %{Qy:} %{-help:--help}\
811 %{-target-help:--target-help}\
812 %{-version:--version}\
813 %{-help=*:--help=%*}\
814 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
815 %{fsyntax-only:-o %j} %{-param*}\
816 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
817 %{coverage:-fprofile-arcs -ftest-coverage}";
819 static const char *upc_options
= "-lang-upc \
820 %{!fno-upc-pre-include:-include gcc-upc.h}";
822 static const char *asm_options
=
823 "%{-target-help:%:print-asm-header()} "
825 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
826 to the assembler equivalents. */
827 "%{v} %{w:-W} %{I*} "
829 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
831 static const char *invoke_as
=
832 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
834 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
835 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
839 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
840 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
844 /* Some compilers have limits on line lengths, and the multilib_select
845 and/or multilib_matches strings can be very long, so we build them at
847 static struct obstack multilib_obstack
;
848 static const char *multilib_select
;
849 static const char *multilib_matches
;
850 static const char *multilib_defaults
;
851 static const char *multilib_exclusions
;
853 /* Check whether a particular argument is a default argument. */
855 #ifndef MULTILIB_DEFAULTS
856 #define MULTILIB_DEFAULTS { "" }
859 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
861 #ifndef DRIVER_SELF_SPECS
862 #define DRIVER_SELF_SPECS ""
865 /* Adding -fopenmp should imply pthreads. This is particularly important
866 for targets that use different start files and suchlike. */
867 #ifndef GOMP_SELF_SPECS
868 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
871 /* Likewise for -fgnu-tm. */
872 #ifndef GTM_SELF_SPECS
873 #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}"
876 static const char *const driver_self_specs
[] = {
877 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
878 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
, GTM_SELF_SPECS
881 #ifndef OPTION_DEFAULT_SPECS
882 #define OPTION_DEFAULT_SPECS { "", "" }
891 static const struct default_spec
892 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
896 struct user_specs
*next
;
897 const char *filename
;
900 static struct user_specs
*user_specs_head
, *user_specs_tail
;
903 /* Record the mapping from file suffixes for compilation specs. */
907 const char *suffix
; /* Use this compiler for input files
908 whose names end in this suffix. */
910 const char *spec
; /* To use this compiler, run this spec. */
912 const char *cpp_spec
; /* If non-NULL, substitute this spec
913 for `%C', rather than the usual
915 const int combinable
; /* If nonzero, compiler can deal with
916 multiple source files at once (IMA). */
917 const int needs_preprocessing
; /* If nonzero, source files need to
918 be run through a preprocessor. */
921 /* Pointer to a vector of `struct compiler' that gives the spec for
922 compiling a file, based on its suffix.
923 A file that does not end in any of these suffixes will be passed
924 unchanged to the loader and nothing else will be done to it.
926 An entry containing two 0s is used to terminate the vector.
928 If multiple entries match a file, the last matching one is used. */
930 static struct compiler
*compilers
;
932 /* Number of entries in `compilers', not counting the null terminator. */
934 static int n_compilers
;
936 /* The default list of file name suffixes and their compilation specs. */
938 static const struct compiler default_compilers
[] =
940 /* Add lists of suffixes of known languages here. If those languages
941 were not present when we built the driver, we will hit these copies
942 and be given a more meaningful error than "file not used since
943 linking is not done". */
944 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
945 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
946 {".mii", "#Objective-C++", 0, 0, 0},
947 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
948 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
949 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
950 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
951 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
952 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
953 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
954 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
955 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
956 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
957 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
958 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
959 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
960 {".r", "#Ratfor", 0, 0, 0},
961 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
962 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
963 {".upc", "#UPC", 0, 0, 0},
964 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
965 {".go", "#Go", 0, 1, 0},
966 /* Next come the entries for C. */
967 {".c", "@c", 0, 0, 1},
969 /* cc1 has an integrated ISO C preprocessor. We should invoke the
970 external preprocessor if -save-temps is given. */
971 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
974 %eGNU C no longer supports -traditional without -E}\
975 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
976 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
977 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
979 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
980 cc1 %(cpp_unique_options) %(cc1_options)}}}\
981 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
983 "%{!E:%e-E or -x required when input is from standard input}\
984 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
985 {".h", "@c-header", 0, 0, 0},
987 /* cc1 has an integrated ISO C preprocessor. We should invoke the
988 external preprocessor if -save-temps is given. */
989 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
991 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
992 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
993 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
995 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
996 %W{o*:--output-pch=%*}}%V}\
997 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
998 cc1 %(cpp_unique_options) %(cc1_options)\
999 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
1000 %W{o*:--output-pch=%*}}%V}}}}}}", 0, 0, 0},
1001 {".i", "@cpp-output", 0, 0, 0},
1003 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
1004 {".s", "@assembler", 0, 0, 0},
1006 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
1007 {".sx", "@assembler-with-cpp", 0, 0, 0},
1008 {".S", "@assembler-with-cpp", 0, 0, 0},
1009 {"@assembler-with-cpp",
1010 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1011 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1012 %{E|M|MM:%(cpp_debug_options)}\
1013 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1014 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1016 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1017 %{E|M|MM:%(cpp_debug_options)}\
1018 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1019 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1024 /* Mark end of table. */
1028 /* Number of elements in default_compilers, not counting the terminator. */
1030 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1032 typedef char *char_p
; /* For DEF_VEC_P. */
1034 /* A vector of options to give to the linker.
1035 These options are accumulated by %x,
1036 and substituted into the linker command with %X. */
1037 static vec
<char_p
> linker_options
;
1039 /* A vector of options to give to the assembler.
1040 These options are accumulated by -Wa,
1041 and substituted into the assembler command with %Y. */
1042 static vec
<char_p
> assembler_options
;
1044 /* A vector of options to give to the preprocessor.
1045 These options are accumulated by -Wp,
1046 and substituted into the preprocessor command with %Z. */
1047 static vec
<char_p
> preprocessor_options
;
1050 skip_whitespace (char *p
)
1054 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1055 be considered whitespace. */
1056 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1058 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1072 /* Structures to keep track of prefixes to try when looking for files. */
1076 const char *prefix
; /* String to prepend to the path. */
1077 struct prefix_list
*next
; /* Next in linked list. */
1078 int require_machine_suffix
; /* Don't use without machine_suffix. */
1079 /* 2 means try both machine_suffix and just_machine_suffix. */
1080 int priority
; /* Sort key - priority within list. */
1081 int os_multilib
; /* 1 if OS multilib scheme should be used,
1082 0 for GCC multilib scheme. */
1087 struct prefix_list
*plist
; /* List of prefixes to try */
1088 int max_len
; /* Max length of a prefix in PLIST */
1089 const char *name
; /* Name of this list (used in config stuff) */
1092 /* List of prefixes to try when looking for executables. */
1094 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1096 /* List of prefixes to try when looking for startup (crt0) files. */
1098 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1100 /* List of prefixes to try when looking for include files. */
1102 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1104 /* Suffix to attach to directories searched for commands.
1105 This looks like `MACHINE/VERSION/'. */
1107 static const char *machine_suffix
= 0;
1109 /* Suffix to attach to directories searched for commands.
1110 This is just `MACHINE/'. */
1112 static const char *just_machine_suffix
= 0;
1114 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1116 static const char *gcc_exec_prefix
;
1118 /* Adjusted value of standard_libexec_prefix. */
1120 static const char *gcc_libexec_prefix
;
1122 /* Default prefixes to attach to command names. */
1124 #ifndef STANDARD_STARTFILE_PREFIX_1
1125 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1127 #ifndef STANDARD_STARTFILE_PREFIX_2
1128 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1131 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1132 #undef MD_EXEC_PREFIX
1133 #undef MD_STARTFILE_PREFIX
1134 #undef MD_STARTFILE_PREFIX_1
1137 /* If no prefixes defined, use the null string, which will disable them. */
1138 #ifndef MD_EXEC_PREFIX
1139 #define MD_EXEC_PREFIX ""
1141 #ifndef MD_STARTFILE_PREFIX
1142 #define MD_STARTFILE_PREFIX ""
1144 #ifndef MD_STARTFILE_PREFIX_1
1145 #define MD_STARTFILE_PREFIX_1 ""
1148 /* These directories are locations set at configure-time based on the
1149 --prefix option provided to configure. Their initializers are
1150 defined in Makefile.in. These paths are not *directly* used when
1151 gcc_exec_prefix is set because, in that case, we know where the
1152 compiler has been installed, and use paths relative to that
1153 location instead. */
1154 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1155 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1156 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1157 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1159 /* For native compilers, these are well-known paths containing
1160 components that may be provided by the system. For cross
1161 compilers, these paths are not used. */
1162 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1163 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1164 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1165 static const char *const standard_startfile_prefix_1
1166 = STANDARD_STARTFILE_PREFIX_1
;
1167 static const char *const standard_startfile_prefix_2
1168 = STANDARD_STARTFILE_PREFIX_2
;
1170 /* A relative path to be used in finding the location of tools
1171 relative to the driver. */
1172 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1174 /* Subdirectory to use for locating libraries. Set by
1175 set_multilib_dir based on the compilation options. */
1177 static const char *multilib_dir
;
1179 /* Subdirectory to use for locating libraries in OS conventions. Set by
1180 set_multilib_dir based on the compilation options. */
1182 static const char *multilib_os_dir
;
1184 /* Subdirectory to use for locating libraries in multiarch conventions. Set by
1185 set_multilib_dir based on the compilation options. */
1187 static const char *multiarch_dir
;
1189 /* Structure to keep track of the specs that have been defined so far.
1190 These are accessed using %(specname) in a compiler or link
1195 /* The following 2 fields must be first */
1196 /* to allow EXTRA_SPECS to be initialized */
1197 const char *name
; /* name of the spec. */
1198 const char *ptr
; /* available ptr if no static pointer */
1200 /* The following fields are not initialized */
1201 /* by EXTRA_SPECS */
1202 const char **ptr_spec
; /* pointer to the spec itself. */
1203 struct spec_list
*next
; /* Next spec in linked list. */
1204 int name_len
; /* length of the name */
1205 bool user_p
; /* whether string come from file spec. */
1206 bool alloc_p
; /* whether string was allocated */
1209 #define INIT_STATIC_SPEC(NAME,PTR) \
1210 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, false, false }
1212 /* List of statically defined specs. */
1213 static struct spec_list static_specs
[] =
1215 INIT_STATIC_SPEC ("asm", &asm_spec
),
1216 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1217 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1218 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1219 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1220 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1221 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1222 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1223 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1224 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1225 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1226 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1227 INIT_STATIC_SPEC ("upc_options", &upc_options
),
1228 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1229 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1230 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1231 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1232 INIT_STATIC_SPEC ("link", &link_spec
),
1233 INIT_STATIC_SPEC ("lib", &lib_spec
),
1234 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1235 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1236 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1237 INIT_STATIC_SPEC ("upc_crtbegin", &upc_crtbegin_spec
),
1238 INIT_STATIC_SPEC ("link_upc", &link_upc_spec
),
1239 INIT_STATIC_SPEC ("upc_crtend", &upc_crtend_spec
),
1240 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1241 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1242 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1243 INIT_STATIC_SPEC ("version", &compiler_version
),
1244 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1245 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1246 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1247 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1248 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1249 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1250 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1251 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1252 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1253 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1254 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1255 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1256 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1257 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1258 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1259 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1260 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1261 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1262 INIT_STATIC_SPEC ("self_spec", &self_spec
),
1265 #ifdef EXTRA_SPECS /* additional specs needed */
1266 /* Structure to keep track of just the first two args of a spec_list.
1267 That is all that the EXTRA_SPECS macro gives us. */
1270 const char *const name
;
1271 const char *const ptr
;
1274 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1275 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1278 /* List of dynamically allocates specs that have been defined so far. */
1280 static struct spec_list
*specs
= (struct spec_list
*) 0;
1282 /* List of static spec functions. */
1284 static const struct spec_function static_spec_functions
[] =
1286 { "getenv", getenv_spec_function
},
1287 { "if-exists", if_exists_spec_function
},
1288 { "if-exists-else", if_exists_else_spec_function
},
1289 { "replace-outfile", replace_outfile_spec_function
},
1290 { "remove-outfile", remove_outfile_spec_function
},
1291 { "version-compare", version_compare_spec_function
},
1292 { "include", include_spec_function
},
1293 { "find-file", find_file_spec_function
},
1294 { "find-plugindir", find_plugindir_spec_function
},
1295 { "print-asm-header", print_asm_header_spec_function
},
1296 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1297 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1298 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1299 { "pass-through-libs", pass_through_libs_spec_func
},
1300 { "replace-extension", replace_extension_spec_func
},
1301 #ifdef EXTRA_SPEC_FUNCTIONS
1302 EXTRA_SPEC_FUNCTIONS
1307 static int processing_spec_function
;
1309 /* Add appropriate libgcc specs to OBSTACK, taking into account
1310 various permutations of -shared-libgcc, -shared, and such. */
1312 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1314 #ifndef USE_LD_AS_NEEDED
1315 #define USE_LD_AS_NEEDED 0
1319 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1320 const char *static_name
, const char *eh_name
)
1324 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1325 "%{!static:%{!static-libgcc:"
1326 #if USE_LD_AS_NEEDED
1327 "%{!shared-libgcc:",
1328 static_name
, " --as-needed ", shared_name
, " --no-as-needed"
1331 shared_name
, "%{!shared: ", static_name
, "}"
1335 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1336 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1340 "%{shared-libgcc:", shared_name
, "}"
1341 "%{!shared-libgcc:", static_name
, "}"
1344 "%{shared:", shared_name
, "}"
1349 obstack_grow (obstack
, buf
, strlen (buf
));
1352 #endif /* ENABLE_SHARED_LIBGCC */
1354 /* Initialize the specs lookup routines. */
1359 struct spec_list
*next
= (struct spec_list
*) 0;
1360 struct spec_list
*sl
= (struct spec_list
*) 0;
1364 return; /* Already initialized. */
1367 fnotice (stderr
, "Using built-in specs.\n");
1370 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1372 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1374 sl
= &extra_specs
[i
];
1375 sl
->name
= extra_specs_1
[i
].name
;
1376 sl
->ptr
= extra_specs_1
[i
].ptr
;
1378 sl
->name_len
= strlen (sl
->name
);
1379 sl
->ptr_spec
= &sl
->ptr
;
1384 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1386 sl
= &static_specs
[i
];
1391 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1392 /* ??? If neither -shared-libgcc nor --static-libgcc was
1393 seen, then we should be making an educated guess. Some proposed
1394 heuristics for ELF include:
1396 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1397 program will be doing dynamic loading, which will likely
1398 need the shared libgcc.
1400 (2) If "-ldl", then it's also a fair bet that we're doing
1403 (3) For each ET_DYN we're linking against (either through -lfoo
1404 or /some/path/foo.so), check to see whether it or one of
1405 its dependencies depends on a shared libgcc.
1409 If the runtime is fixed to look for program headers instead
1410 of calling __register_frame_info at all, for each object,
1411 use the shared libgcc if any EH symbol referenced.
1413 If crtstuff is fixed to not invoke __register_frame_info
1414 automatically, for each object, use the shared libgcc if
1415 any non-empty unwind section found.
1417 Doing any of this probably requires invoking an external program to
1418 do the actual object file scanning. */
1420 const char *p
= libgcc_spec
;
1423 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1424 when given the proper command line arguments. */
1427 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1429 init_gcc_specs (&obstack
,
1431 #ifdef USE_LIBUNWIND_EXCEPTIONS
1437 #ifdef USE_LIBUNWIND_EXCEPTIONS
1438 # ifdef HAVE_LD_STATIC_DYNAMIC
1439 " %{!static:" LD_STATIC_OPTION
"} -lunwind"
1440 " %{!static:" LD_DYNAMIC_OPTION
"}"
1450 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1452 /* Ug. We don't know shared library extensions. Hope that
1453 systems that use this form don't do shared libraries. */
1454 init_gcc_specs (&obstack
,
1458 #ifdef USE_LIBUNWIND_EXCEPTIONS
1467 obstack_1grow (&obstack
, *p
);
1468 in_sep
= (*p
== ' ');
1473 obstack_1grow (&obstack
, '\0');
1474 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1477 #ifdef USE_AS_TRADITIONAL_FORMAT
1478 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1480 static const char tf
[] = "--traditional-format ";
1481 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1482 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1483 asm_spec
= XOBFINISH (&obstack
, const char *);
1487 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \
1488 defined LINKER_HASH_STYLE
1489 # ifdef LINK_BUILDID_SPEC
1490 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1491 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof(LINK_BUILDID_SPEC
) - 1);
1493 # ifdef LINK_EH_SPEC
1494 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1495 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1497 # ifdef LINKER_HASH_STYLE
1498 /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had
1501 static const char hash_style
[] = "--hash-style=";
1502 obstack_grow (&obstack
, hash_style
, sizeof(hash_style
) - 1);
1503 obstack_grow (&obstack
, LINKER_HASH_STYLE
, sizeof(LINKER_HASH_STYLE
) - 1);
1504 obstack_1grow (&obstack
, ' ');
1507 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1508 link_spec
= XOBFINISH (&obstack
, const char *);
1514 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1515 removed; If the spec starts with a + then SPEC is added to the end of the
1519 set_spec (const char *name
, const char *spec
, bool user_p
)
1521 struct spec_list
*sl
;
1522 const char *old_spec
;
1523 int name_len
= strlen (name
);
1526 /* If this is the first call, initialize the statically allocated specs. */
1529 struct spec_list
*next
= (struct spec_list
*) 0;
1530 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1532 sl
= &static_specs
[i
];
1539 /* See if the spec already exists. */
1540 for (sl
= specs
; sl
; sl
= sl
->next
)
1541 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1546 /* Not found - make it. */
1547 sl
= XNEW (struct spec_list
);
1548 sl
->name
= xstrdup (name
);
1549 sl
->name_len
= name_len
;
1550 sl
->ptr_spec
= &sl
->ptr
;
1552 *(sl
->ptr_spec
) = "";
1557 old_spec
= *(sl
->ptr_spec
);
1558 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1559 ? concat (old_spec
, spec
+ 1, NULL
)
1564 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1567 /* Free the old spec. */
1568 if (old_spec
&& sl
->alloc_p
)
1569 free (CONST_CAST(char *, old_spec
));
1571 sl
->user_p
= user_p
;
1575 /* Accumulate a command (program name and args), and run it. */
1577 typedef const char *const_char_p
; /* For DEF_VEC_P. */
1579 /* Vector of pointers to arguments in the current line of specifications. */
1581 static vec
<const_char_p
> argbuf
;
1583 /* Position in the argbuf vector containing the name of the output file
1584 (the value associated with the "-o" flag). */
1586 static int have_o_argbuf_index
= 0;
1588 /* Were the options -c, -S or -E passed. */
1589 static int have_c
= 0;
1591 /* Was the option -o passed. */
1592 static int have_o
= 0;
1594 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1595 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1598 static struct temp_name
{
1599 const char *suffix
; /* suffix associated with the code. */
1600 int length
; /* strlen (suffix). */
1601 int unique
; /* Indicates whether %g or %u/%U was used. */
1602 const char *filename
; /* associated filename. */
1603 int filename_length
; /* strlen (filename). */
1604 struct temp_name
*next
;
1607 /* Number of commands executed so far. */
1609 static int execution_count
;
1611 /* Number of commands that exited with a signal. */
1613 static int signal_count
;
1615 /* Allocate the argument vector. */
1623 /* Clear out the vector of arguments (after a command is executed). */
1628 argbuf
.truncate (0);
1631 /* Add one argument to the vector at the end.
1632 This is done when a space is seen or at the end of the line.
1633 If DELETE_ALWAYS is nonzero, the arg is a filename
1634 and the file should be deleted eventually.
1635 If DELETE_FAILURE is nonzero, the arg is a filename
1636 and the file should be deleted if this compilation fails. */
1639 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1641 argbuf
.safe_push (arg
);
1643 if (strcmp (arg
, "-o") == 0)
1644 have_o_argbuf_index
= argbuf
.length ();
1645 if (delete_always
|| delete_failure
)
1648 /* If the temporary file we should delete is specified as
1649 part of a joined argument extract the filename. */
1651 && (p
= strrchr (arg
, '=')))
1653 record_temp_file (arg
, delete_always
, delete_failure
);
1657 /* Load specs from a file name named FILENAME, replacing occurrences of
1658 various different types of line-endings, \r\n, \n\r and just \r, with
1662 load_specs (const char *filename
)
1666 struct stat statbuf
;
1673 fnotice (stderr
, "Reading specs from %s\n", filename
);
1675 /* Open and stat the file. */
1676 desc
= open (filename
, O_RDONLY
, 0);
1678 pfatal_with_name (filename
);
1679 if (stat (filename
, &statbuf
) < 0)
1680 pfatal_with_name (filename
);
1682 /* Read contents of file into BUFFER. */
1683 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
1684 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1686 pfatal_with_name (filename
);
1687 buffer
[readlen
] = 0;
1690 specs
= XNEWVEC (char, readlen
+ 1);
1692 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1698 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1700 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1714 /* Read compilation specs from a file named FILENAME,
1715 replacing the default ones.
1717 A suffix which starts with `*' is a definition for
1718 one of the machine-specific sub-specs. The "suffix" should be
1719 *asm, *cc1, *cpp, *link, *startfile, etc.
1720 The corresponding spec is stored in asm_spec, etc.,
1721 rather than in the `compilers' vector.
1723 Anything invalid in the file is a fatal error. */
1726 read_specs (const char *filename
, bool main_p
, bool user_p
)
1731 buffer
= load_specs (filename
);
1733 /* Scan BUFFER for specs, putting them in the vector. */
1739 char *in
, *out
, *p1
, *p2
, *p3
;
1741 /* Advance P in BUFFER to the next nonblank nocomment line. */
1742 p
= skip_whitespace (p
);
1746 /* Is this a special command that starts with '%'? */
1747 /* Don't allow this for the main specs file, since it would
1748 encourage people to overwrite it. */
1749 if (*p
== '%' && !main_p
)
1752 while (*p
&& *p
!= '\n')
1758 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1759 && (p1
[sizeof "%include" - 1] == ' '
1760 || p1
[sizeof "%include" - 1] == '\t'))
1764 p1
+= sizeof ("%include");
1765 while (*p1
== ' ' || *p1
== '\t')
1768 if (*p1
++ != '<' || p
[-2] != '>')
1769 fatal_error ("specs %%include syntax malformed after "
1771 (long) (p1
- buffer
+ 1));
1774 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1775 read_specs (new_filename
? new_filename
: p1
, false, user_p
);
1778 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1779 && (p1
[sizeof "%include_noerr" - 1] == ' '
1780 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1784 p1
+= sizeof "%include_noerr";
1785 while (*p1
== ' ' || *p1
== '\t')
1788 if (*p1
++ != '<' || p
[-2] != '>')
1789 fatal_error ("specs %%include syntax malformed after "
1791 (long) (p1
- buffer
+ 1));
1794 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1796 read_specs (new_filename
, false, user_p
);
1797 else if (verbose_flag
)
1798 fnotice (stderr
, "could not find specs file %s\n", p1
);
1801 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1802 && (p1
[sizeof "%rename" - 1] == ' '
1803 || p1
[sizeof "%rename" - 1] == '\t'))
1806 struct spec_list
*sl
;
1807 struct spec_list
*newsl
;
1809 /* Get original name. */
1810 p1
+= sizeof "%rename";
1811 while (*p1
== ' ' || *p1
== '\t')
1814 if (! ISALPHA ((unsigned char) *p1
))
1815 fatal_error ("specs %%rename syntax malformed after "
1817 (long) (p1
- buffer
));
1820 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1823 if (*p2
!= ' ' && *p2
!= '\t')
1824 fatal_error ("specs %%rename syntax malformed after "
1826 (long) (p2
- buffer
));
1830 while (*p2
== ' ' || *p2
== '\t')
1833 if (! ISALPHA ((unsigned char) *p2
))
1834 fatal_error ("specs %%rename syntax malformed after "
1836 (long) (p2
- buffer
));
1838 /* Get new spec name. */
1840 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
1844 fatal_error ("specs %%rename syntax malformed after "
1846 (long) (p3
- buffer
));
1849 for (sl
= specs
; sl
; sl
= sl
->next
)
1850 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1854 fatal_error ("specs %s spec was not found to be renamed", p1
);
1856 if (strcmp (p1
, p2
) == 0)
1859 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
1860 if (strcmp (newsl
->name
, p2
) == 0)
1861 fatal_error ("%s: attempt to rename spec %qs to "
1862 "already defined spec %qs",
1867 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
1869 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
1873 set_spec (p2
, *(sl
->ptr_spec
), user_p
);
1875 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
1877 *(sl
->ptr_spec
) = "";
1882 fatal_error ("specs unknown %% command after %ld characters",
1883 (long) (p1
- buffer
));
1886 /* Find the colon that should end the suffix. */
1888 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1891 /* The colon shouldn't be missing. */
1893 fatal_error ("specs file malformed after %ld characters",
1894 (long) (p1
- buffer
));
1896 /* Skip back over trailing whitespace. */
1898 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1901 /* Copy the suffix to a string. */
1902 suffix
= save_string (p
, p2
- p
);
1903 /* Find the next line. */
1904 p
= skip_whitespace (p1
+ 1);
1906 fatal_error ("specs file malformed after %ld characters",
1907 (long) (p
- buffer
));
1910 /* Find next blank line or end of string. */
1911 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1914 /* Specs end at the blank line and do not include the newline. */
1915 spec
= save_string (p
, p1
- p
);
1918 /* Delete backslash-newline sequences from the spec. */
1923 if (in
[0] == '\\' && in
[1] == '\n')
1925 else if (in
[0] == '#')
1926 while (*in
&& *in
!= '\n')
1934 if (suffix
[0] == '*')
1936 if (! strcmp (suffix
, "*link_command"))
1937 link_command_spec
= spec
;
1939 set_spec (suffix
+ 1, spec
, user_p
);
1943 /* Add this pair to the vector. */
1945 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
1947 compilers
[n_compilers
].suffix
= suffix
;
1948 compilers
[n_compilers
].spec
= spec
;
1950 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
1954 link_command_spec
= spec
;
1957 if (link_command_spec
== 0)
1958 fatal_error ("spec file has no spec for linking");
1961 /* Record the names of temporary files we tell compilers to write,
1962 and delete them at the end of the run. */
1964 /* This is the common prefix we use to make temp file names.
1965 It is chosen once for each run of this program.
1966 It is substituted into a spec by %g or %j.
1967 Thus, all temp file names contain this prefix.
1968 In practice, all temp file names start with this prefix.
1970 This prefix comes from the envvar TMPDIR if it is defined;
1971 otherwise, from the P_tmpdir macro if that is defined;
1972 otherwise, in /usr/tmp or /tmp;
1973 or finally the current directory if all else fails. */
1975 static const char *temp_filename
;
1977 /* Length of the prefix. */
1979 static int temp_filename_length
;
1981 /* Define the list of temporary files to delete. */
1986 struct temp_file
*next
;
1989 /* Queue of files to delete on success or failure of compilation. */
1990 static struct temp_file
*always_delete_queue
;
1991 /* Queue of files to delete on failure of compilation. */
1992 static struct temp_file
*failure_delete_queue
;
1994 /* Record FILENAME as a file to be deleted automatically.
1995 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1996 otherwise delete it in any case.
1997 FAIL_DELETE nonzero means delete it if a compilation step fails;
1998 otherwise delete it in any case. */
2001 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2003 char *const name
= xstrdup (filename
);
2007 struct temp_file
*temp
;
2008 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2009 if (! filename_cmp (name
, temp
->name
))
2012 temp
= XNEW (struct temp_file
);
2013 temp
->next
= always_delete_queue
;
2015 always_delete_queue
= temp
;
2022 struct temp_file
*temp
;
2023 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2024 if (! filename_cmp (name
, temp
->name
))
2030 temp
= XNEW (struct temp_file
);
2031 temp
->next
= failure_delete_queue
;
2033 failure_delete_queue
= temp
;
2039 /* Delete all the temporary files whose names we previously recorded. */
2041 #ifndef DELETE_IF_ORDINARY
2042 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2045 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2046 if (unlink (NAME) < 0) \
2048 perror_with_name (NAME); \
2053 delete_if_ordinary (const char *name
)
2059 printf ("Delete %s? (y or n) ", name
);
2063 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2066 if (i
== 'y' || i
== 'Y')
2068 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2072 delete_temp_files (void)
2074 struct temp_file
*temp
;
2076 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2077 delete_if_ordinary (temp
->name
);
2078 always_delete_queue
= 0;
2081 /* Delete all the files to be deleted on error. */
2084 delete_failure_queue (void)
2086 struct temp_file
*temp
;
2088 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2089 delete_if_ordinary (temp
->name
);
2093 clear_failure_queue (void)
2095 failure_delete_queue
= 0;
2098 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2100 If DO_MULTI is true iterate over the paths twice, first with multilib
2101 suffix then without, otherwise iterate over the paths once without
2102 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2103 to avoid visiting the same path twice, but we could do better. For
2104 instance, /usr/lib/../lib is considered different from /usr/lib.
2105 At least EXTRA_SPACE chars past the end of the path passed to
2106 CALLBACK are available for use by the callback.
2107 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2109 Returns the value returned by CALLBACK. */
2112 for_each_path (const struct path_prefix
*paths
,
2115 void *(*callback
) (char *, void *),
2116 void *callback_info
)
2118 struct prefix_list
*pl
;
2119 const char *multi_dir
= NULL
;
2120 const char *multi_os_dir
= NULL
;
2121 const char *multiarch_suffix
= NULL
;
2122 const char *multi_suffix
;
2123 const char *just_multi_suffix
;
2126 bool skip_multi_dir
= false;
2127 bool skip_multi_os_dir
= false;
2129 multi_suffix
= machine_suffix
;
2130 just_multi_suffix
= just_machine_suffix
;
2131 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2133 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2134 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2135 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2137 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2138 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2140 multiarch_suffix
= concat (multiarch_dir
, dir_separator_str
, NULL
);
2144 size_t multi_dir_len
= 0;
2145 size_t multi_os_dir_len
= 0;
2146 size_t multiarch_len
= 0;
2148 size_t just_suffix_len
;
2152 multi_dir_len
= strlen (multi_dir
);
2154 multi_os_dir_len
= strlen (multi_os_dir
);
2155 if (multiarch_suffix
)
2156 multiarch_len
= strlen (multiarch_suffix
);
2157 suffix_len
= strlen (multi_suffix
);
2158 just_suffix_len
= strlen (just_multi_suffix
);
2162 len
= paths
->max_len
+ extra_space
+ 1;
2163 len
+= MAX (MAX (suffix_len
, multi_os_dir_len
), multiarch_len
);
2164 path
= XNEWVEC (char, len
);
2167 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2169 len
= strlen (pl
->prefix
);
2170 memcpy (path
, pl
->prefix
, len
);
2172 /* Look first in MACHINE/VERSION subdirectory. */
2173 if (!skip_multi_dir
)
2175 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2176 ret
= callback (path
, callback_info
);
2181 /* Some paths are tried with just the machine (ie. target)
2182 subdir. This is used for finding as, ld, etc. */
2184 && pl
->require_machine_suffix
== 2)
2186 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2187 ret
= callback (path
, callback_info
);
2192 /* Now try the multiarch path. */
2194 && !pl
->require_machine_suffix
&& multiarch_dir
)
2196 memcpy (path
+ len
, multiarch_suffix
, multiarch_len
+ 1);
2197 ret
= callback (path
, callback_info
);
2202 /* Now try the base path. */
2203 if (!pl
->require_machine_suffix
2204 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2206 const char *this_multi
;
2207 size_t this_multi_len
;
2209 if (pl
->os_multilib
)
2211 this_multi
= multi_os_dir
;
2212 this_multi_len
= multi_os_dir_len
;
2216 this_multi
= multi_dir
;
2217 this_multi_len
= multi_dir_len
;
2221 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2225 ret
= callback (path
, callback_info
);
2233 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2236 /* Run through the paths again, this time without multilibs.
2237 Don't repeat any we have already seen. */
2240 free (CONST_CAST (char *, multi_dir
));
2242 free (CONST_CAST (char *, multi_suffix
));
2243 multi_suffix
= machine_suffix
;
2244 free (CONST_CAST (char *, just_multi_suffix
));
2245 just_multi_suffix
= just_machine_suffix
;
2248 skip_multi_dir
= true;
2251 free (CONST_CAST (char *, multi_os_dir
));
2252 multi_os_dir
= NULL
;
2255 skip_multi_os_dir
= true;
2260 free (CONST_CAST (char *, multi_dir
));
2261 free (CONST_CAST (char *, multi_suffix
));
2262 free (CONST_CAST (char *, just_multi_suffix
));
2265 free (CONST_CAST (char *, multi_os_dir
));
2271 /* Callback for build_search_list. Adds path to obstack being built. */
2273 struct add_to_obstack_info
{
2280 add_to_obstack (char *path
, void *data
)
2282 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2284 if (info
->check_dir
&& !is_directory (path
, false))
2287 if (!info
->first_time
)
2288 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2290 obstack_grow (info
->ob
, path
, strlen (path
));
2292 info
->first_time
= false;
2296 /* Add or change the value of an environment variable, outputting the
2297 change to standard error if in verbose mode. */
2299 xputenv (const char *string
)
2302 fnotice (stderr
, "%s\n", string
);
2303 putenv (CONST_CAST (char *, string
));
2306 /* Build a list of search directories from PATHS.
2307 PREFIX is a string to prepend to the list.
2308 If CHECK_DIR_P is true we ensure the directory exists.
2309 If DO_MULTI is true, multilib paths are output first, then
2311 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2312 It is also used by the --print-search-dirs flag. */
2315 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2316 bool check_dir
, bool do_multi
)
2318 struct add_to_obstack_info info
;
2320 info
.ob
= &collect_obstack
;
2321 info
.check_dir
= check_dir
;
2322 info
.first_time
= true;
2324 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2325 obstack_1grow (&collect_obstack
, '=');
2327 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2329 obstack_1grow (&collect_obstack
, '\0');
2330 return XOBFINISH (&collect_obstack
, char *);
2333 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2337 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2340 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2343 /* Check whether NAME can be accessed in MODE. This is like access,
2344 except that it never considers directories to be executable. */
2347 access_check (const char *name
, int mode
)
2353 if (stat (name
, &st
) < 0
2354 || S_ISDIR (st
.st_mode
))
2358 return access (name
, mode
);
2361 /* Callback for find_a_file. Appends the file name to the directory
2362 path. If the resulting file exists in the right mode, return the
2363 full pathname to the file. */
2365 struct file_at_path_info
{
2374 file_at_path (char *path
, void *data
)
2376 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2377 size_t len
= strlen (path
);
2379 memcpy (path
+ len
, info
->name
, info
->name_len
);
2380 len
+= info
->name_len
;
2382 /* Some systems have a suffix for executable files.
2383 So try appending that first. */
2384 if (info
->suffix_len
)
2386 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2387 if (access_check (path
, info
->mode
) == 0)
2392 if (access_check (path
, info
->mode
) == 0)
2398 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2399 access to check permissions. If DO_MULTI is true, search multilib
2400 paths then non-multilib paths, otherwise do not search multilib paths.
2401 Return 0 if not found, otherwise return its name, allocated with malloc. */
2404 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2407 struct file_at_path_info info
;
2409 #ifdef DEFAULT_ASSEMBLER
2410 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2411 return xstrdup (DEFAULT_ASSEMBLER
);
2414 #ifdef DEFAULT_LINKER
2415 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2416 return xstrdup (DEFAULT_LINKER
);
2419 /* Determine the filename to execute (special case for absolute paths). */
2421 if (IS_ABSOLUTE_PATH (name
))
2423 if (access (name
, mode
) == 0)
2424 return xstrdup (name
);
2430 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2431 info
.name_len
= strlen (info
.name
);
2432 info
.suffix_len
= strlen (info
.suffix
);
2435 return (char*) for_each_path (pprefix
, do_multi
,
2436 info
.name_len
+ info
.suffix_len
,
2437 file_at_path
, &info
);
2440 /* Ranking of prefixes in the sort list. -B prefixes are put before
2443 enum path_prefix_priority
2445 PREFIX_PRIORITY_B_OPT
,
2446 PREFIX_PRIORITY_LAST
2449 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2450 order according to PRIORITY. Within each PRIORITY, new entries are
2453 If WARN is nonzero, we will warn if no file is found
2454 through this prefix. WARN should point to an int
2455 which will be set to 1 if this entry is used.
2457 COMPONENT is the value to be passed to update_path.
2459 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2460 the complete value of machine_suffix.
2461 2 means try both machine_suffix and just_machine_suffix. */
2464 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2465 const char *component
, /* enum prefix_priority */ int priority
,
2466 int require_machine_suffix
, int os_multilib
)
2468 struct prefix_list
*pl
, **prev
;
2471 for (prev
= &pprefix
->plist
;
2472 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2473 prev
= &(*prev
)->next
)
2476 /* Keep track of the longest prefix. */
2478 prefix
= update_path (prefix
, component
);
2479 len
= strlen (prefix
);
2480 if (len
> pprefix
->max_len
)
2481 pprefix
->max_len
= len
;
2483 pl
= XNEW (struct prefix_list
);
2484 pl
->prefix
= prefix
;
2485 pl
->require_machine_suffix
= require_machine_suffix
;
2486 pl
->priority
= priority
;
2487 pl
->os_multilib
= os_multilib
;
2489 /* Insert after PREV. */
2494 /* Same as add_prefix, but prepending target_system_root to prefix. */
2495 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2497 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2498 const char *component
,
2499 /* enum prefix_priority */ int priority
,
2500 int require_machine_suffix
, int os_multilib
)
2502 if (!IS_ABSOLUTE_PATH (prefix
))
2503 fatal_error ("system path %qs is not absolute", prefix
);
2505 if (target_system_root
)
2507 char *sysroot_no_trailing_dir_separator
= xstrdup (target_system_root
);
2508 size_t sysroot_len
= strlen (target_system_root
);
2511 && target_system_root
[sysroot_len
- 1] == DIR_SEPARATOR
)
2512 sysroot_no_trailing_dir_separator
[sysroot_len
- 1] = '\0';
2514 if (target_sysroot_suffix
)
2515 prefix
= concat (sysroot_no_trailing_dir_separator
,
2516 target_sysroot_suffix
, prefix
, NULL
);
2518 prefix
= concat (sysroot_no_trailing_dir_separator
, prefix
, NULL
);
2520 free (sysroot_no_trailing_dir_separator
);
2522 /* We have to override this because GCC's notion of sysroot
2523 moves along with GCC. */
2527 add_prefix (pprefix
, prefix
, component
, priority
,
2528 require_machine_suffix
, os_multilib
);
2531 /* Execute the command specified by the arguments on the current line of spec.
2532 When using pipes, this includes several piped-together commands
2533 with `|' between them.
2535 Return 0 if successful, -1 if failed. */
2541 int n_commands
; /* # of command. */
2543 struct pex_obj
*pex
;
2546 const char *prog
; /* program name. */
2547 const char **argv
; /* vector of args. */
2551 struct command
*commands
; /* each command buffer with above info. */
2553 gcc_assert (!processing_spec_function
);
2557 string
= find_a_file (&exec_prefixes
,
2558 argbuf
[0], X_OK
, false);
2561 insert_wrapper (wrapper_string
);
2564 /* Count # of piped commands. */
2565 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2566 if (strcmp (arg
, "|") == 0)
2569 /* Get storage for each command. */
2570 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2572 /* Split argbuf into its separate piped processes,
2573 and record info about each one.
2574 Also search for the programs that are to be run. */
2576 argbuf
.safe_push (0);
2578 commands
[0].prog
= argbuf
[0]; /* first command. */
2579 commands
[0].argv
= argbuf
.address ();
2581 if (!wrapper_string
)
2583 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2584 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2587 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2588 if (arg
&& strcmp (arg
, "|") == 0)
2589 { /* each command. */
2590 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2591 fatal_error ("-pipe not supported");
2593 argbuf
[i
] = 0; /* Termination of
2595 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2596 commands
[n_commands
].argv
2597 = &(argbuf
.address ())[i
+ 1];
2598 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2601 commands
[n_commands
].argv
[0] = string
;
2605 /* If -v, print what we are about to do, and maybe query. */
2609 /* For help listings, put a blank line between sub-processes. */
2610 if (print_help_list
)
2611 fputc ('\n', stderr
);
2613 /* Print each piped command as a separate line. */
2614 for (i
= 0; i
< n_commands
; i
++)
2616 const char *const *j
;
2618 if (verbose_only_flag
)
2620 for (j
= commands
[i
].argv
; *j
; j
++)
2623 for (p
= *j
; *p
; ++p
)
2624 if (!ISALNUM ((unsigned char) *p
)
2625 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
2629 fprintf (stderr
, " \"");
2630 for (p
= *j
; *p
; ++p
)
2632 if (*p
== '"' || *p
== '\\' || *p
== '$')
2633 fputc ('\\', stderr
);
2636 fputc ('"', stderr
);
2638 /* If it's empty, print "". */
2640 fprintf (stderr
, " \"\"");
2642 fprintf (stderr
, " %s", *j
);
2646 for (j
= commands
[i
].argv
; *j
; j
++)
2647 /* If it's empty, print "". */
2649 fprintf (stderr
, " \"\"");
2651 fprintf (stderr
, " %s", *j
);
2653 /* Print a pipe symbol after all but the last command. */
2654 if (i
+ 1 != n_commands
)
2655 fprintf (stderr
, " |");
2656 fprintf (stderr
, "\n");
2659 if (verbose_only_flag
!= 0)
2661 /* verbose_only_flag should act as if the spec was
2662 executed, so increment execution_count before
2663 returning. This prevents spurious warnings about
2664 unused linker input files, etc. */
2669 fnotice (stderr
, "\nGo ahead? (y or n) ");
2673 while (getchar () != '\n')
2676 if (i
!= 'y' && i
!= 'Y')
2681 #ifdef ENABLE_VALGRIND_CHECKING
2682 /* Run the each command through valgrind. To simplify prepending the
2683 path to valgrind and the option "-q" (for quiet operation unless
2684 something triggers), we allocate a separate argv array. */
2686 for (i
= 0; i
< n_commands
; i
++)
2692 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2695 argv
= XALLOCAVEC (const char *, argc
+ 3);
2697 argv
[0] = VALGRIND_PATH
;
2699 for (j
= 2; j
< argc
+ 2; j
++)
2700 argv
[j
] = commands
[i
].argv
[j
- 2];
2703 commands
[i
].argv
= argv
;
2704 commands
[i
].prog
= argv
[0];
2708 /* Run each piped subprocess. */
2710 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
2711 ? PEX_RECORD_TIMES
: 0),
2712 progname
, temp_filename
);
2714 fatal_error ("pex_init failed: %m");
2716 for (i
= 0; i
< n_commands
; i
++)
2720 const char *string
= commands
[i
].argv
[0];
2722 errmsg
= pex_run (pex
,
2723 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
2724 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
2725 string
, CONST_CAST (char **, commands
[i
].argv
),
2730 fatal_error (errmsg
);
2734 pfatal_with_name (errmsg
);
2738 if (string
!= commands
[i
].prog
)
2739 free (CONST_CAST (char *, string
));
2744 /* Wait for all the subprocesses to finish. */
2748 struct pex_time
*times
= NULL
;
2751 statuses
= (int *) alloca (n_commands
* sizeof (int));
2752 if (!pex_get_status (pex
, n_commands
, statuses
))
2753 fatal_error ("failed to get exit status: %m");
2755 if (report_times
|| report_times_to_file
)
2757 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
2758 if (!pex_get_times (pex
, n_commands
, times
))
2759 fatal_error ("failed to get process times: %m");
2764 for (i
= 0; i
< n_commands
; ++i
)
2766 int status
= statuses
[i
];
2768 if (WIFSIGNALED (status
))
2771 /* SIGPIPE is a special case. It happens in -pipe mode
2772 when the compiler dies before the preprocessor is done,
2773 or the assembler dies before the compiler is done.
2774 There's generally been an error already, and this is
2775 just fallout. So don't generate another error unless
2776 we would otherwise have succeeded. */
2777 if (WTERMSIG (status
) == SIGPIPE
2778 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2785 internal_error ("%s (program %s)",
2786 strsignal (WTERMSIG (status
)), commands
[i
].prog
);
2788 else if (WIFEXITED (status
)
2789 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2791 if (WEXITSTATUS (status
) > greatest_status
)
2792 greatest_status
= WEXITSTATUS (status
);
2796 if (report_times
|| report_times_to_file
)
2798 struct pex_time
*pt
= ×
[i
];
2801 ut
= ((double) pt
->user_seconds
2802 + (double) pt
->user_microseconds
/ 1.0e6
);
2803 st
= ((double) pt
->system_seconds
2804 + (double) pt
->system_microseconds
/ 1.0e6
);
2809 fnotice (stderr
, "# %s %.2f %.2f\n",
2810 commands
[i
].prog
, ut
, st
);
2812 if (report_times_to_file
)
2815 const char *const *j
;
2817 fprintf (report_times_to_file
, "%g %g", ut
, st
);
2819 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
2822 for (p
= *j
; *p
; ++p
)
2823 if (*p
== '"' || *p
== '\\' || *p
== '$'
2829 fprintf (report_times_to_file
, " \"");
2830 for (p
= *j
; *p
; ++p
)
2832 if (*p
== '"' || *p
== '\\' || *p
== '$')
2833 fputc ('\\', report_times_to_file
);
2834 fputc (*p
, report_times_to_file
);
2836 fputc ('"', report_times_to_file
);
2839 fprintf (report_times_to_file
, " %s", *j
);
2842 fputc ('\n', report_times_to_file
);
2852 /* Find all the switches given to us
2853 and make a vector describing them.
2854 The elements of the vector are strings, one per switch given.
2855 If a switch uses following arguments, then the `part1' field
2856 is the switch itself and the `args' field
2857 is a null-terminated vector containing the following arguments.
2858 Bits in the `live_cond' field are:
2859 SWITCH_LIVE to indicate this switch is true in a conditional spec.
2860 SWITCH_FALSE to indicate this switch is overridden by a later switch.
2861 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
2862 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored
2863 in all do_spec calls afterwards. Used for %<S from self specs.
2864 The `validated' field is nonzero if any spec has looked at this switch;
2865 if it remains zero at the end of the run, it must be meaningless. */
2867 #define SWITCH_LIVE (1 << 0)
2868 #define SWITCH_FALSE (1 << 1)
2869 #define SWITCH_IGNORE (1 << 2)
2870 #define SWITCH_IGNORE_PERMANENTLY (1 << 3)
2871 #define SWITCH_KEEP_FOR_GCC (1 << 4)
2877 unsigned int live_cond
;
2883 static struct switchstr
*switches
;
2885 static int n_switches
;
2887 static int n_switches_alloc
;
2889 /* Set to zero if -fcompare-debug is disabled, positive if it's
2890 enabled and we're running the first compilation, negative if it's
2891 enabled and we're running the second compilation. For most of the
2892 time, it's in the range -1..1, but it can be temporarily set to 2
2893 or 3 to indicate that the -fcompare-debug flags didn't come from
2894 the command-line, but rather from the GCC_COMPARE_DEBUG environment
2895 variable, until a synthesized -fcompare-debug flag is added to the
2899 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
2900 int compare_debug_second
;
2902 /* Set to the flags that should be passed to the second compilation in
2903 a -fcompare-debug compilation. */
2904 const char *compare_debug_opt
;
2906 static struct switchstr
*switches_debug_check
[2];
2908 static int n_switches_debug_check
[2];
2910 static int n_switches_alloc_debug_check
[2];
2912 static char *debug_check_temp_file
[2];
2914 /* Language is one of three things:
2916 1) The name of a real programming language.
2917 2) NULL, indicating that no one has figured out
2919 3) '*', indicating that the file should be passed
2924 const char *language
;
2925 struct compiler
*incompiler
;
2930 /* Also a vector of input files specified. */
2932 static struct infile
*infiles
;
2936 static int n_infiles_alloc
;
2938 /* True if multiple input files are being compiled to a single
2941 static bool combine_inputs
;
2943 /* This counts the number of libraries added by lang_specific_driver, so that
2944 we can tell if there were any user supplied any files or libraries. */
2946 static int added_libraries
;
2948 /* And a vector of corresponding output files is made up later. */
2950 const char **outfiles
;
2952 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2954 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2955 is true if we should look for an executable suffix. DO_OBJ
2956 is true if we should look for an object suffix. */
2959 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
2960 int do_obj ATTRIBUTE_UNUSED
)
2962 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2970 len
= strlen (name
);
2972 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2973 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2974 if (do_obj
&& len
> 2
2975 && name
[len
- 2] == '.'
2976 && name
[len
- 1] == 'o')
2978 obstack_grow (&obstack
, name
, len
- 2);
2979 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
2980 name
= XOBFINISH (&obstack
, const char *);
2984 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2985 /* If there is no filetype, make it the executable suffix (which includes
2986 the "."). But don't get confused if we have just "-o". */
2987 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2990 for (i
= len
- 1; i
>= 0; i
--)
2991 if (IS_DIR_SEPARATOR (name
[i
]))
2994 for (i
++; i
< len
; i
++)
2998 obstack_grow (&obstack
, name
, len
);
2999 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3000 strlen (TARGET_EXECUTABLE_SUFFIX
));
3001 name
= XOBFINISH (&obstack
, const char *);
3008 /* Display the command line switches accepted by gcc. */
3012 printf (_("Usage: %s [options] file...\n"), progname
);
3013 fputs (_("Options:\n"), stdout
);
3015 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3016 fputs (_(" --help Display this information\n"), stdout
);
3017 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3018 fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...]\n"), stdout
);
3019 fputs (_(" Display specific types of command line options\n"), stdout
);
3021 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3022 fputs (_(" --version Display compiler version information\n"), stdout
);
3023 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3024 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3025 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3026 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3027 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3028 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3029 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3031 -print-multiarch Display the target's normalized GNU triplet, used as\n\
3032 a component in the library path\n"), stdout
);
3033 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3035 -print-multi-lib Display the mapping between command line options and\n\
3036 multiple library search directories\n"), stdout
);
3037 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3038 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout
);
3039 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
3040 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3041 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3042 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3043 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3044 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3045 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3046 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3047 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout
);
3049 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3050 prefixes to other gcc components\n"), stdout
);
3051 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3052 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3053 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3054 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3056 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3057 and libraries\n"), stdout
);
3058 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3059 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3060 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3061 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3062 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3063 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3064 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3065 fputs (_(" -pie Create a position independent executable\n"), stdout
);
3066 fputs (_(" -shared Create a shared library\n"), stdout
);
3068 -x <language> Specify the language of the following input files\n\
3069 Permissible languages include: c c++ assembler none\n\
3070 'none' means revert to the default behavior of\n\
3071 guessing the language based on the file's extension\n\
3075 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3076 passed on to the various sub-processes invoked by %s. In order to pass\n\
3077 other options on to these processes the -W<letter> options must be used.\n\
3080 /* The rest of the options are displayed by invocations of the various
3085 add_preprocessor_option (const char *option
, int len
)
3087 preprocessor_options
.safe_push (save_string (option
, len
));
3091 add_assembler_option (const char *option
, int len
)
3093 assembler_options
.safe_push (save_string (option
, len
));
3097 add_linker_option (const char *option
, int len
)
3099 linker_options
.safe_push (save_string (option
, len
));
3102 /* Allocate space for an input file in infiles. */
3107 if (n_infiles_alloc
== 0)
3109 n_infiles_alloc
= 16;
3110 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3112 else if (n_infiles_alloc
== n_infiles
)
3114 n_infiles_alloc
*= 2;
3115 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3119 /* Store an input file with the given NAME and LANGUAGE in
3123 add_infile (const char *name
, const char *language
)
3126 infiles
[n_infiles
].name
= name
;
3127 infiles
[n_infiles
++].language
= language
;
3130 /* Allocate space for a switch in switches. */
3135 if (n_switches_alloc
== 0)
3137 n_switches_alloc
= 16;
3138 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3140 else if (n_switches_alloc
== n_switches
)
3142 n_switches_alloc
*= 2;
3143 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3147 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3148 as validated if VALIDATED and KNOWN if it is an internal switch. */
3151 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3152 bool validated
, bool known
)
3155 switches
[n_switches
].part1
= opt
+ 1;
3157 switches
[n_switches
].args
= 0;
3160 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3161 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3162 switches
[n_switches
].args
[n_args
] = NULL
;
3165 switches
[n_switches
].live_cond
= 0;
3166 switches
[n_switches
].validated
= validated
;
3167 switches
[n_switches
].known
= known
;
3168 switches
[n_switches
].ordering
= 0;
3172 /* Handle an option DECODED that is unknown to the option-processing
3176 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3178 const char *opt
= decoded
->arg
;
3179 if (opt
[1] == 'W' && opt
[2] == 'n' && opt
[3] == 'o' && opt
[4] == '-'
3180 && !(decoded
->errors
& CL_ERR_NEGATIVE
))
3182 /* Leave unknown -Wno-* options for the compiler proper, to be
3183 diagnosed only if there are warnings. */
3184 save_switch (decoded
->canonical_option
[0],
3185 decoded
->canonical_option_num_elements
- 1,
3186 &decoded
->canonical_option
[1], false, true);
3189 if (decoded
->opt_index
== OPT_SPECIAL_unknown
)
3191 /* Give it a chance to define it a a spec file. */
3192 save_switch (decoded
->canonical_option
[0],
3193 decoded
->canonical_option_num_elements
- 1,
3194 &decoded
->canonical_option
[1], false, false);
3201 /* Handle an option DECODED that is not marked as CL_DRIVER.
3202 LANG_MASK will always be CL_DRIVER. */
3205 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3206 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3208 /* At this point, non-driver options are accepted (and expected to
3209 be passed down by specs) unless marked to be rejected by the
3210 driver. Options to be rejected by the driver but accepted by the
3211 compilers proper are treated just like completely unknown
3213 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3215 if (option
->cl_reject_driver
)
3216 error ("unrecognized command line option %qs",
3217 decoded
->orig_option_with_args_text
);
3219 save_switch (decoded
->canonical_option
[0],
3220 decoded
->canonical_option_num_elements
- 1,
3221 &decoded
->canonical_option
[1], false, true);
3224 static const char *spec_lang
= 0;
3225 static int last_language_n_infiles
;
3227 /* Handle a driver option; arguments and return value as for
3231 driver_handle_option (struct gcc_options
*opts
,
3232 struct gcc_options
*opts_set
,
3233 const struct cl_decoded_option
*decoded
,
3234 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
3236 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
,
3237 diagnostic_context
*dc
)
3239 size_t opt_index
= decoded
->opt_index
;
3240 const char *arg
= decoded
->arg
;
3241 const char *compare_debug_replacement_opt
;
3242 int value
= decoded
->value
;
3243 bool validated
= false;
3244 bool do_save
= true;
3246 gcc_assert (opts
== &global_options
);
3247 gcc_assert (opts_set
== &global_options_set
);
3248 gcc_assert (kind
== DK_UNSPECIFIED
);
3249 gcc_assert (loc
== UNKNOWN_LOCATION
);
3250 gcc_assert (dc
== global_dc
);
3256 struct spec_list
*sl
;
3258 for (sl
= specs
; sl
; sl
= sl
->next
)
3259 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3260 if (link_command_spec
)
3261 printf ("*link_command:\n%s\n\n", link_command_spec
);
3265 case OPT_dumpversion
:
3266 printf ("%s\n", spec_version
);
3269 case OPT_dumpmachine
:
3270 printf ("%s\n", spec_machine
);
3276 /* CPP driver cannot obtain switch from cc1_options. */
3278 add_preprocessor_option ("--version", strlen ("--version"));
3279 add_assembler_option ("--version", strlen ("--version"));
3280 add_linker_option ("--version", strlen ("--version"));
3284 print_help_list
= 1;
3286 /* CPP driver cannot obtain switch from cc1_options. */
3288 add_preprocessor_option ("--help", 6);
3289 add_assembler_option ("--help", 6);
3290 add_linker_option ("--help", 6);
3294 print_subprocess_help
= 2;
3297 case OPT__target_help
:
3298 print_subprocess_help
= 1;
3300 /* CPP driver cannot obtain switch from cc1_options. */
3302 add_preprocessor_option ("--target-help", 13);
3303 add_assembler_option ("--target-help", 13);
3304 add_linker_option ("--target-help", 13);
3307 case OPT__no_sysroot_suffix
:
3308 case OPT_pass_exit_codes
:
3309 case OPT_print_search_dirs
:
3310 case OPT_print_file_name_
:
3311 case OPT_print_prog_name_
:
3312 case OPT_print_multi_lib
:
3313 case OPT_print_multi_directory
:
3314 case OPT_print_sysroot
:
3315 case OPT_print_multi_os_directory
:
3316 case OPT_print_multiarch
:
3317 case OPT_print_sysroot_headers_suffix
:
3320 /* These options set the variables specified in common.opt
3321 automatically, and do not need to be saved for spec
3326 case OPT_print_libgcc_file_name
:
3327 print_file_name
= "libgcc.a";
3331 case OPT_fcompare_debug_second
:
3332 compare_debug_second
= 1;
3335 case OPT_fcompare_debug
:
3339 compare_debug_replacement_opt
= "-fcompare-debug=";
3341 goto compare_debug_with_arg
;
3344 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
3346 goto compare_debug_with_arg
;
3353 case OPT_fcompare_debug_
:
3354 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
3355 compare_debug_with_arg
:
3356 gcc_assert (decoded
->canonical_option_num_elements
== 1);
3357 gcc_assert (arg
!= NULL
);
3362 if (compare_debug
< 0)
3363 compare_debug_opt
= NULL
;
3365 compare_debug_opt
= arg
;
3366 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
, true);
3372 /* Pass the rest of this option to the assembler. */
3374 /* Split the argument at commas. */
3376 for (j
= 0; arg
[j
]; j
++)
3379 add_assembler_option (arg
+ prev
, j
- prev
);
3383 /* Record the part after the last comma. */
3384 add_assembler_option (arg
+ prev
, j
- prev
);
3392 /* Pass the rest of this option to the preprocessor. */
3394 /* Split the argument at commas. */
3396 for (j
= 0; arg
[j
]; j
++)
3399 add_preprocessor_option (arg
+ prev
, j
- prev
);
3403 /* Record the part after the last comma. */
3404 add_preprocessor_option (arg
+ prev
, j
- prev
);
3412 /* Split the argument at commas. */
3414 for (j
= 0; arg
[j
]; j
++)
3417 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
3420 /* Record the part after the last comma. */
3421 add_infile (arg
+ prev
, "*");
3427 add_infile (arg
, "*");
3431 case OPT_Xpreprocessor
:
3432 add_preprocessor_option (arg
, strlen (arg
));
3436 case OPT_Xassembler
:
3437 add_assembler_option (arg
, strlen (arg
));
3442 /* POSIX allows separation of -l and the lib arg; canonicalize
3443 by concatenating -l with its arg */
3444 add_infile (concat ("-l", arg
, NULL
), "*");
3449 /* Similarly, canonicalize -L for linkers that may not accept
3450 separate arguments. */
3451 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
, true);
3456 save_switch (concat ("-F", arg
, NULL
), 0, NULL
, validated
, true);
3459 case OPT_save_temps
:
3460 save_temps_flag
= SAVE_TEMPS_CWD
;
3464 case OPT_save_temps_
:
3465 if (strcmp (arg
, "cwd") == 0)
3466 save_temps_flag
= SAVE_TEMPS_CWD
;
3467 else if (strcmp (arg
, "obj") == 0
3468 || strcmp (arg
, "object") == 0)
3469 save_temps_flag
= SAVE_TEMPS_OBJ
;
3471 fatal_error ("%qs is an unknown -save-temps option",
3472 decoded
->orig_option_with_args_text
);
3475 case OPT_no_canonical_prefixes
:
3476 /* Already handled as a special case, so ignored here. */
3482 /* These options set the variables specified in common.opt
3483 automatically, but do need to be saved for spec
3489 struct user_specs
*user
= XNEW (struct user_specs
);
3491 user
->next
= (struct user_specs
*) 0;
3492 user
->filename
= arg
;
3493 if (user_specs_tail
)
3494 user_specs_tail
->next
= user
;
3496 user_specs_head
= user
;
3497 user_specs_tail
= user
;
3503 target_system_root
= arg
;
3504 target_system_root_changed
= 1;
3509 if (report_times_to_file
)
3510 fclose (report_times_to_file
);
3511 report_times_to_file
= fopen (arg
, "a");
3517 This is similar to -v except that there is no execution
3518 of the commands and the echoed arguments are quoted. It
3519 is intended for use in shell scripts to capture the
3520 driver-generated command line. */
3521 verbose_only_flag
++;
3528 size_t len
= strlen (arg
);
3530 /* Catch the case where the user has forgotten to append a
3531 directory separator to the path. Note, they may be using
3532 -B to add an executable name prefix, eg "i386-elf-", in
3533 order to distinguish between multiple installations of
3534 GCC in the same directory. Hence we must check to see
3535 if appending a directory separator actually makes a
3536 valid directory name. */
3537 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
3538 && is_directory (arg
, false))
3540 char *tmp
= XNEWVEC (char, len
+ 2);
3542 tmp
[len
] = DIR_SEPARATOR
;
3547 add_prefix (&exec_prefixes
, arg
, NULL
,
3548 PREFIX_PRIORITY_B_OPT
, 0, 0);
3549 add_prefix (&startfile_prefixes
, arg
, NULL
,
3550 PREFIX_PRIORITY_B_OPT
, 0, 0);
3551 add_prefix (&include_prefixes
, arg
, NULL
,
3552 PREFIX_PRIORITY_B_OPT
, 0, 0);
3559 if (!strcmp (spec_lang
, "none"))
3560 /* Suppress the warning if -xnone comes after the last input
3561 file, because alternate command interfaces like g++ might
3562 find it useful to place -xnone after each input file. */
3565 last_language_n_infiles
= n_infiles
;
3571 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3572 arg
= convert_filename (arg
, ! have_c
, 0);
3574 /* Save the output name in case -save-temps=obj was used. */
3575 save_temps_prefix
= xstrdup (arg
);
3576 /* On some systems, ld cannot handle "-o" without a space. So
3577 split the option from its argument. */
3578 save_switch ("-o", 1, &arg
, validated
, true);
3581 case OPT_static_libgcc
:
3582 case OPT_shared_libgcc
:
3583 case OPT_static_libgfortran
:
3584 case OPT_static_libstdc__
:
3585 /* These are always valid, since gcc.c itself understands the
3586 first two, gfortranspec.c understands -static-libgfortran and
3587 g++spec.c understands -static-libstdc++ */
3592 /* Various driver options need no special processing at this
3593 point, having been handled in a prescan above or being
3594 handled by specs. */
3599 save_switch (decoded
->canonical_option
[0],
3600 decoded
->canonical_option_num_elements
- 1,
3601 &decoded
->canonical_option
[1], validated
, true);
3605 /* Put the driver's standard set of option handlers in *HANDLERS. */
3608 set_option_handlers (struct cl_option_handlers
*handlers
)
3610 handlers
->unknown_option_callback
= driver_unknown_option_callback
;
3611 handlers
->wrong_lang_callback
= driver_wrong_lang_callback
;
3612 handlers
->num_handlers
= 3;
3613 handlers
->handlers
[0].handler
= driver_handle_option
;
3614 handlers
->handlers
[0].mask
= CL_DRIVER
;
3615 handlers
->handlers
[1].handler
= common_handle_option
;
3616 handlers
->handlers
[1].mask
= CL_COMMON
;
3617 handlers
->handlers
[2].handler
= target_handle_option
;
3618 handlers
->handlers
[2].mask
= CL_TARGET
;
3621 /* Create the vector `switches' and its contents.
3622 Store its length in `n_switches'. */
3625 process_command (unsigned int decoded_options_count
,
3626 struct cl_decoded_option
*decoded_options
)
3630 char *tooldir_prefix
, *tooldir_prefix2
;
3631 char *(*get_relative_prefix
) (const char *, const char *,
3632 const char *) = NULL
;
3633 struct cl_option_handlers handlers
;
3636 gcc_exec_prefix
= getenv ("GCC_EXEC_PREFIX");
3640 added_libraries
= 0;
3642 /* Figure compiler version from version string. */
3644 compiler_version
= temp1
= xstrdup (version_string
);
3646 for (; *temp1
; ++temp1
)
3655 /* Handle any -no-canonical-prefixes flag early, to assign the function
3656 that builds relative prefixes. This function creates default search
3657 paths that are needed later in normal option handling. */
3659 for (j
= 1; j
< decoded_options_count
; j
++)
3661 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
3663 get_relative_prefix
= make_relative_prefix_ignore_links
;
3667 if (! get_relative_prefix
)
3668 get_relative_prefix
= make_relative_prefix
;
3670 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3671 see if we can create it from the pathname specified in
3672 decoded_options[0].arg. */
3674 gcc_libexec_prefix
= standard_libexec_prefix
;
3676 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3677 if (!gcc_exec_prefix
)
3679 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3680 standard_bindir_prefix
,
3681 standard_exec_prefix
);
3682 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3683 standard_bindir_prefix
,
3684 standard_libexec_prefix
);
3685 if (gcc_exec_prefix
)
3686 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3690 /* make_relative_prefix requires a program name, but
3691 GCC_EXEC_PREFIX is typically a directory name with a trailing
3692 / (which is ignored by make_relative_prefix), so append a
3694 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3695 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
3696 standard_exec_prefix
,
3697 standard_libexec_prefix
);
3699 /* The path is unrelocated, so fallback to the original setting. */
3700 if (!gcc_libexec_prefix
)
3701 gcc_libexec_prefix
= standard_libexec_prefix
;
3707 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3708 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3709 or an automatically created GCC_EXEC_PREFIX from
3710 decoded_options[0].arg. */
3712 /* Do language-specific adjustment/addition of flags. */
3713 lang_specific_driver (&decoded_options
, &decoded_options_count
,
3716 if (gcc_exec_prefix
)
3718 int len
= strlen (gcc_exec_prefix
);
3720 if (len
> (int) sizeof ("/lib/gcc/") - 1
3721 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3723 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3724 if (IS_DIR_SEPARATOR (*temp
)
3725 && filename_ncmp (temp
+ 1, "lib", 3) == 0
3726 && IS_DIR_SEPARATOR (temp
[4])
3727 && filename_ncmp (temp
+ 5, "gcc", 3) == 0)
3728 len
-= sizeof ("/lib/gcc/") - 1;
3731 set_std_prefix (gcc_exec_prefix
, len
);
3732 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3733 PREFIX_PRIORITY_LAST
, 0, 0);
3734 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3735 PREFIX_PRIORITY_LAST
, 0, 0);
3738 /* COMPILER_PATH and LIBRARY_PATH have values
3739 that are lists of directory names with colons. */
3741 temp
= getenv ("COMPILER_PATH");
3744 const char *startp
, *endp
;
3745 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3747 startp
= endp
= temp
;
3750 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3752 strncpy (nstore
, startp
, endp
- startp
);
3754 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3755 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3757 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3758 nstore
[endp
- startp
+ 1] = 0;
3761 nstore
[endp
- startp
] = 0;
3762 add_prefix (&exec_prefixes
, nstore
, 0,
3763 PREFIX_PRIORITY_LAST
, 0, 0);
3764 add_prefix (&include_prefixes
, nstore
, 0,
3765 PREFIX_PRIORITY_LAST
, 0, 0);
3768 endp
= startp
= endp
+ 1;
3775 temp
= getenv (LIBRARY_PATH_ENV
);
3776 if (temp
&& *cross_compile
== '0')
3778 const char *startp
, *endp
;
3779 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3781 startp
= endp
= temp
;
3784 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3786 strncpy (nstore
, startp
, endp
- startp
);
3788 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3789 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3791 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3792 nstore
[endp
- startp
+ 1] = 0;
3795 nstore
[endp
- startp
] = 0;
3796 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3797 PREFIX_PRIORITY_LAST
, 0, 1);
3800 endp
= startp
= endp
+ 1;
3807 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3808 temp
= getenv ("LPATH");
3809 if (temp
&& *cross_compile
== '0')
3811 const char *startp
, *endp
;
3812 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3814 startp
= endp
= temp
;
3817 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3819 strncpy (nstore
, startp
, endp
- startp
);
3821 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3822 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3824 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3825 nstore
[endp
- startp
+ 1] = 0;
3828 nstore
[endp
- startp
] = 0;
3829 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3830 PREFIX_PRIORITY_LAST
, 0, 1);
3833 endp
= startp
= endp
+ 1;
3840 /* Process the options and store input files and switches in their
3843 last_language_n_infiles
= -1;
3845 set_option_handlers (&handlers
);
3847 for (j
= 1; j
< decoded_options_count
; j
++)
3849 switch (decoded_options
[j
].opt_index
)
3861 for (j
= 1; j
< decoded_options_count
; j
++)
3863 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
3865 const char *arg
= decoded_options
[j
].arg
;
3866 const char *p
= strrchr (arg
, '@');
3870 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3871 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
3873 /* For LTO static archive support we handle input file
3874 specifications that are composed of a filename and
3875 an offset like FNAME@OFFSET. */
3878 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
3879 && strlen (p
) == (unsigned int)consumed
)
3881 fname
= (char *)xmalloc (p
- arg
+ 1);
3882 memcpy (fname
, arg
, p
- arg
);
3883 fname
[p
- arg
] = '\0';
3884 /* Only accept non-stdin and existing FNAME parts, otherwise
3885 try with the full name. */
3886 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
3889 fname
= xstrdup (arg
);
3893 fname
= xstrdup (arg
);
3895 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
3896 perror_with_name (fname
);
3898 add_infile (arg
, spec_lang
);
3904 read_cmdline_option (&global_options
, &global_options_set
,
3905 decoded_options
+ j
, UNKNOWN_LOCATION
,
3906 CL_DRIVER
, &handlers
, global_dc
);
3909 /* If -save-temps=obj and -o name, create the prefix to use for %b.
3910 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
3911 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
3913 save_temps_length
= strlen (save_temps_prefix
);
3914 temp
= strrchr (lbasename (save_temps_prefix
), '.');
3917 save_temps_length
-= strlen (temp
);
3918 save_temps_prefix
[save_temps_length
] = '\0';
3922 else if (save_temps_prefix
!= NULL
)
3924 free (save_temps_prefix
);
3925 save_temps_prefix
= NULL
;
3928 if (save_temps_flag
&& use_pipes
)
3930 /* -save-temps overrides -pipe, so that temp files are produced */
3931 if (save_temps_flag
)
3932 warning (0, "-pipe ignored because -save-temps specified");
3938 const char *gcd
= getenv ("GCC_COMPARE_DEBUG");
3940 if (gcd
&& gcd
[0] == '-')
3943 compare_debug_opt
= gcd
;
3945 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
3948 compare_debug_opt
= "-gtoggle";
3951 else if (compare_debug
< 0)
3954 gcc_assert (!compare_debug_opt
);
3957 /* Set up the search paths. We add directories that we expect to
3958 contain GNU Toolchain components before directories specified by
3959 the machine description so that we will find GNU components (like
3960 the GNU assembler) before those of the host system. */
3962 /* If we don't know where the toolchain has been installed, use the
3963 configured-in locations. */
3964 if (!gcc_exec_prefix
)
3967 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
3968 PREFIX_PRIORITY_LAST
, 1, 0);
3969 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
3970 PREFIX_PRIORITY_LAST
, 2, 0);
3971 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3972 PREFIX_PRIORITY_LAST
, 2, 0);
3974 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3975 PREFIX_PRIORITY_LAST
, 1, 0);
3978 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
3979 tooldir_prefix2
= concat (tooldir_base_prefix
, spec_machine
,
3980 dir_separator_str
, NULL
);
3982 /* Look for tools relative to the location from which the driver is
3983 running, or, if that is not available, the configured prefix. */
3985 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
3986 spec_machine
, dir_separator_str
,
3987 spec_version
, dir_separator_str
, tooldir_prefix2
, NULL
);
3988 free (tooldir_prefix2
);
3990 add_prefix (&exec_prefixes
,
3991 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3992 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
3993 add_prefix (&startfile_prefixes
,
3994 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3995 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
3996 free (tooldir_prefix
);
3998 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
3999 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4000 then consider it to relocate with the rest of the GCC installation
4001 if GCC_EXEC_PREFIX is set.
4002 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4003 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
4005 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4006 standard_bindir_prefix
,
4007 target_system_root
);
4008 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4010 target_system_root
= tmp_prefix
;
4011 target_system_root_changed
= 1;
4016 /* More prefixes are enabled in main, after we read the specs file
4017 and determine whether this is cross-compilation or not. */
4019 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4020 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
4022 /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG
4023 environment variable. */
4024 if (compare_debug
== 2 || compare_debug
== 3)
4026 const char *opt
= concat ("-fcompare-debug=", compare_debug_opt
, NULL
);
4027 save_switch (opt
, 0, NULL
, false, true);
4031 /* Ensure we only invoke each subprocess once. */
4032 if (print_subprocess_help
|| print_help_list
|| print_version
)
4036 /* Create a dummy input file, so that we can pass
4037 the help option on to the various sub-processes. */
4038 add_infile ("help-dummy", "c");
4042 switches
[n_switches
].part1
= 0;
4044 infiles
[n_infiles
].name
= 0;
4047 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4048 and place that in the environment. */
4051 set_collect_gcc_options (void)
4056 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4058 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4059 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4062 for (i
= 0; (int) i
< n_switches
; i
++)
4064 const char *const *args
;
4067 obstack_grow (&collect_obstack
, " ", 1);
4071 /* Ignore elided switches. */
4072 if ((switches
[i
].live_cond
4073 & (SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
))
4077 obstack_grow (&collect_obstack
, "'-", 2);
4078 q
= switches
[i
].part1
;
4079 while ((p
= strchr (q
, '\'')))
4081 obstack_grow (&collect_obstack
, q
, p
- q
);
4082 obstack_grow (&collect_obstack
, "'\\''", 4);
4085 obstack_grow (&collect_obstack
, q
, strlen (q
));
4086 obstack_grow (&collect_obstack
, "'", 1);
4088 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4090 obstack_grow (&collect_obstack
, " '", 2);
4092 while ((p
= strchr (q
, '\'')))
4094 obstack_grow (&collect_obstack
, q
, p
- q
);
4095 obstack_grow (&collect_obstack
, "'\\''", 4);
4098 obstack_grow (&collect_obstack
, q
, strlen (q
));
4099 obstack_grow (&collect_obstack
, "'", 1);
4102 obstack_grow (&collect_obstack
, "\0", 1);
4103 xputenv (XOBFINISH (&collect_obstack
, char *));
4106 /* Process a spec string, accumulating and running commands. */
4108 /* These variables describe the input file name.
4109 input_file_number is the index on outfiles of this file,
4110 so that the output file name can be stored for later use by %o.
4111 input_basename is the start of the part of the input file
4112 sans all directory names, and basename_length is the number
4113 of characters starting there excluding the suffix .c or whatever. */
4115 static const char *gcc_input_filename
;
4116 static int input_file_number
;
4117 size_t input_filename_length
;
4118 static int basename_length
;
4119 static int suffixed_basename_length
;
4120 static const char *input_basename
;
4121 static const char *input_suffix
;
4122 #ifndef HOST_LACKS_INODE_NUMBERS
4123 static struct stat input_stat
;
4125 static int input_stat_set
;
4127 /* The compiler used to process the current input file. */
4128 static struct compiler
*input_file_compiler
;
4130 /* These are variables used within do_spec and do_spec_1. */
4132 /* Nonzero if an arg has been started and not yet terminated
4133 (with space, tab or newline). */
4134 static int arg_going
;
4136 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4137 is a temporary file name. */
4138 static int delete_this_arg
;
4140 /* Nonzero means %w has been seen; the next arg to be terminated
4141 is the output file name of this compilation. */
4142 static int this_is_output_file
;
4144 /* Nonzero means %s has been seen; the next arg to be terminated
4145 is the name of a library file and we should try the standard
4146 search dirs for it. */
4147 static int this_is_library_file
;
4149 /* Nonzero means %T has been seen; the next arg to be terminated
4150 is the name of a linker script and we should try all of the
4151 standard search dirs for it. If it is found insert a --script
4152 command line switch and then substitute the full path in place,
4153 otherwise generate an error message. */
4154 static int this_is_linker_script
;
4156 /* Nonzero means that the input of this command is coming from a pipe. */
4157 static int input_from_pipe
;
4159 /* Nonnull means substitute this for any suffix when outputting a switches
4161 static const char *suffix_subst
;
4163 /* If there is an argument being accumulated, terminate it and store it. */
4166 end_going_arg (void)
4172 obstack_1grow (&obstack
, 0);
4173 string
= XOBFINISH (&obstack
, const char *);
4174 if (this_is_library_file
)
4175 string
= find_file (string
);
4176 if (this_is_linker_script
)
4178 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4180 if (full_script_path
== NULL
)
4182 error ("unable to locate default linker script %qs in the library search paths", string
);
4183 /* Script was not found on search path. */
4186 store_arg ("--script", false, false);
4187 string
= full_script_path
;
4189 store_arg (string
, delete_this_arg
, this_is_output_file
);
4190 if (this_is_output_file
)
4191 outfiles
[input_file_number
] = string
;
4197 /* Parse the WRAPPER string which is a comma separated list of the command line
4198 and insert them into the beginning of argbuf. */
4201 insert_wrapper (const char *wrapper
)
4205 char *buf
= xstrdup (wrapper
);
4207 unsigned int old_length
= argbuf
.length ();
4215 while ((p
= strchr (p
, ',')) != NULL
);
4217 argbuf
.safe_grow (old_length
+ n
);
4218 memmove (argbuf
.address () + n
,
4220 old_length
* sizeof (const_char_p
));
4234 while ((p
= strchr (p
, ',')) != NULL
);
4235 gcc_assert (i
== n
);
4238 /* Process the spec SPEC and run the commands specified therein.
4239 Returns 0 if the spec is successfully processed; -1 if failed. */
4242 do_spec (const char *spec
)
4246 value
= do_spec_2 (spec
);
4248 /* Force out any unfinished command.
4249 If -pipe, this forces out the last command if it ended in `|'. */
4252 if (argbuf
.length () > 0
4253 && !strcmp (argbuf
.last (), "|"))
4256 set_collect_gcc_options ();
4258 if (argbuf
.length () > 0)
4266 do_spec_2 (const char *spec
)
4272 delete_this_arg
= 0;
4273 this_is_output_file
= 0;
4274 this_is_library_file
= 0;
4275 this_is_linker_script
= 0;
4276 input_from_pipe
= 0;
4277 suffix_subst
= NULL
;
4279 result
= do_spec_1 (spec
, 0, NULL
);
4287 /* Process the given spec string and add any new options to the end
4288 of the switches/n_switches array. */
4291 do_option_spec (const char *name
, const char *spec
)
4293 unsigned int i
, value_count
, value_len
;
4294 const char *p
, *q
, *value
;
4295 char *tmp_spec
, *tmp_spec_p
;
4297 if (configure_default_options
[0].name
== NULL
)
4300 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4301 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4303 if (i
== ARRAY_SIZE (configure_default_options
))
4306 value
= configure_default_options
[i
].value
;
4307 value_len
= strlen (value
);
4309 /* Compute the size of the final spec. */
4312 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4318 /* Replace each %(VALUE) by the specified value. */
4319 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4320 + value_count
* (value_len
- strlen ("%(VALUE)")));
4321 tmp_spec_p
= tmp_spec
;
4323 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4325 memcpy (tmp_spec_p
, q
, p
- q
);
4326 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4327 memcpy (tmp_spec_p
, value
, value_len
);
4328 tmp_spec_p
+= value_len
;
4329 q
= p
+ strlen ("%(VALUE)");
4331 strcpy (tmp_spec_p
, q
);
4333 do_self_spec (tmp_spec
);
4336 /* Process the given spec string and add any new options to the end
4337 of the switches/n_switches array. */
4340 do_self_spec (const char *spec
)
4345 do_spec_1 (" ", 0, NULL
);
4347 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
4348 do_self_specs adds the replacements to switches array, so it shouldn't
4349 be processed afterwards. */
4350 for (i
= 0; i
< n_switches
; i
++)
4351 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
4352 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
4354 if (argbuf
.length () > 0)
4356 const char **argbuf_copy
;
4357 struct cl_decoded_option
*decoded_options
;
4358 struct cl_option_handlers handlers
;
4359 unsigned int decoded_options_count
;
4362 /* Create a copy of argbuf with a dummy argv[0] entry for
4363 decode_cmdline_options_to_array. */
4364 argbuf_copy
= XNEWVEC (const char *,
4365 argbuf
.length () + 1);
4366 argbuf_copy
[0] = "";
4367 memcpy (argbuf_copy
+ 1, argbuf
.address (),
4368 argbuf
.length () * sizeof (const char *));
4370 decode_cmdline_options_to_array (argbuf
.length () + 1,
4372 CL_DRIVER
, &decoded_options
,
4373 &decoded_options_count
);
4376 set_option_handlers (&handlers
);
4378 for (j
= 1; j
< decoded_options_count
; j
++)
4380 switch (decoded_options
[j
].opt_index
)
4382 case OPT_SPECIAL_input_file
:
4383 /* Specs should only generate options, not input
4385 if (strcmp (decoded_options
[j
].arg
, "-") != 0)
4386 fatal_error ("switch %qs does not start with %<-%>",
4387 decoded_options
[j
].arg
);
4389 fatal_error ("spec-generated switch is just %<-%>");
4392 case OPT_fcompare_debug_second
:
4393 case OPT_fcompare_debug
:
4394 case OPT_fcompare_debug_
:
4396 /* Avoid duplicate processing of some options from
4397 compare-debug specs; just save them here. */
4398 save_switch (decoded_options
[j
].canonical_option
[0],
4399 (decoded_options
[j
].canonical_option_num_elements
4401 &decoded_options
[j
].canonical_option
[1], false, true);
4405 read_cmdline_option (&global_options
, &global_options_set
,
4406 decoded_options
+ j
, UNKNOWN_LOCATION
,
4407 CL_DRIVER
, &handlers
, global_dc
);
4413 switches
[n_switches
].part1
= 0;
4417 /* Callback for processing %D and %I specs. */
4419 struct spec_path_info
{
4424 bool separate_options
;
4428 spec_path (char *path
, void *data
)
4430 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
4434 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4437 if (info
->append_len
!= 0)
4439 len
= strlen (path
);
4440 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4443 if (!is_directory (path
, true))
4446 do_spec_1 (info
->option
, 1, NULL
);
4447 if (info
->separate_options
)
4448 do_spec_1 (" ", 0, NULL
);
4450 if (info
->append_len
== 0)
4452 len
= strlen (path
);
4453 save
= path
[len
- 1];
4454 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4455 path
[len
- 1] = '\0';
4458 do_spec_1 (path
, 1, NULL
);
4459 do_spec_1 (" ", 0, NULL
);
4461 /* Must not damage the original path. */
4462 if (info
->append_len
== 0)
4463 path
[len
- 1] = save
;
4468 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
4472 create_at_file (char **argv
)
4474 char *temp_file
= make_temp_file ("");
4475 char *at_argument
= concat ("@", temp_file
, NULL
);
4476 FILE *f
= fopen (temp_file
, "w");
4480 fatal_error ("could not open temporary response file %s",
4483 status
= writeargv (argv
, f
);
4486 fatal_error ("could not write to temporary response file %s",
4489 status
= fclose (f
);
4492 fatal_error ("could not close temporary response file %s",
4495 store_arg (at_argument
, 0, 0);
4497 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
4500 /* True if we should compile INFILE. */
4503 compile_input_file_p (struct infile
*infile
)
4505 if ((!infile
->language
) || (infile
->language
[0] != '*'))
4506 if (infile
->incompiler
== input_file_compiler
)
4511 /* Process each member of VEC as a spec. */
4514 do_specs_vec (vec
<char_p
> vec
)
4519 FOR_EACH_VEC_ELT (vec
, ix
, opt
)
4521 do_spec_1 (opt
, 1, NULL
);
4522 /* Make each accumulated option a separate argument. */
4523 do_spec_1 (" ", 0, NULL
);
4527 /* Process the sub-spec SPEC as a portion of a larger spec.
4528 This is like processing a whole spec except that we do
4529 not initialize at the beginning and we do not supply a
4530 newline by default at the end.
4531 INSWITCH nonzero means don't process %-sequences in SPEC;
4532 in this case, % is treated as an ordinary character.
4533 This is used while substituting switches.
4534 INSWITCH nonzero also causes SPC not to terminate an argument.
4536 Value is zero unless a line was finished
4537 and the command on that line reported an error. */
4540 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4542 const char *p
= spec
;
4547 /* If it's an empty string argument to a switch, keep it as is. */
4548 if (inswitch
&& !*p
)
4552 /* If substituting a switch, treat all chars like letters.
4553 Otherwise, NL, SPC, TAB and % are special. */
4554 switch (inswitch
? 'a' : c
)
4559 if (argbuf
.length () > 0
4560 && !strcmp (argbuf
.last (), "|"))
4562 /* A `|' before the newline means use a pipe here,
4563 but only if -pipe was specified.
4564 Otherwise, execute now and don't pass the `|' as an arg. */
4567 input_from_pipe
= 1;
4574 set_collect_gcc_options ();
4576 if (argbuf
.length () > 0)
4582 /* Reinitialize for a new command, and for a new argument. */
4585 delete_this_arg
= 0;
4586 this_is_output_file
= 0;
4587 this_is_library_file
= 0;
4588 this_is_linker_script
= 0;
4589 input_from_pipe
= 0;
4596 obstack_1grow (&obstack
, c
);
4604 /* Reinitialize for a new argument. */
4605 delete_this_arg
= 0;
4606 this_is_output_file
= 0;
4607 this_is_library_file
= 0;
4608 this_is_linker_script
= 0;
4615 fatal_error ("spec %qs invalid", spec
);
4618 if (save_temps_length
)
4619 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4621 obstack_grow (&obstack
, input_basename
, basename_length
);
4622 if (compare_debug
< 0)
4623 obstack_grow (&obstack
, ".gk", 3);
4628 if (save_temps_length
)
4629 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4631 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4632 if (compare_debug
< 0)
4633 obstack_grow (&obstack
, ".gk", 3);
4638 delete_this_arg
= 2;
4641 /* Dump out the directories specified with LIBRARY_PATH,
4642 followed by the absolute directories
4643 that we search for startfiles. */
4646 struct spec_path_info info
;
4649 info
.append_len
= 0;
4650 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4651 /* Used on systems which record the specified -L dirs
4652 and use them to search for dynamic linking.
4653 Relative directories always come from -B,
4654 and it is better not to use them for searching
4655 at run time. In particular, stage1 loses. */
4656 info
.omit_relative
= true;
4658 info
.omit_relative
= false;
4660 info
.separate_options
= false;
4662 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
4667 /* %efoo means report an error with `foo' as error message
4668 and don't execute any more commands for this file. */
4672 while (*p
!= 0 && *p
!= '\n')
4674 buf
= (char *) alloca (p
- q
+ 1);
4675 strncpy (buf
, q
, p
- q
);
4677 error ("%s", _(buf
));
4682 /* %nfoo means report a notice with `foo' on stderr. */
4686 while (*p
!= 0 && *p
!= '\n')
4688 buf
= (char *) alloca (p
- q
+ 1);
4689 strncpy (buf
, q
, p
- q
);
4691 inform (0, "%s", _(buf
));
4701 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4702 defined, and it is not a directory, and it is
4703 writable, use it. Otherwise, treat this like any
4704 other temporary file. */
4706 if ((!save_temps_flag
)
4707 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4708 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4710 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4711 strlen (HOST_BIT_BUCKET
));
4712 delete_this_arg
= 0;
4717 goto create_temp_file
;
4721 obstack_1grow (&obstack
, '-');
4722 delete_this_arg
= 0;
4725 /* consume suffix */
4726 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4728 if (p
[0] == '%' && p
[1] == 'O')
4733 goto create_temp_file
;
4737 /* consume suffix */
4738 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4740 if (p
[0] == '%' && p
[1] == 'O')
4745 goto create_temp_file
;
4751 struct temp_name
*t
;
4753 const char *suffix
= p
;
4754 char *saved_suffix
= NULL
;
4756 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4758 suffix_length
= p
- suffix
;
4759 if (p
[0] == '%' && p
[1] == 'O')
4762 /* We don't support extra suffix characters after %O. */
4763 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
4764 fatal_error ("spec %qs has invalid %<%%0%c%>", spec
, *p
);
4765 if (suffix_length
== 0)
4766 suffix
= TARGET_OBJECT_SUFFIX
;
4770 = XNEWVEC (char, suffix_length
4771 + strlen (TARGET_OBJECT_SUFFIX
));
4772 strncpy (saved_suffix
, suffix
, suffix_length
);
4773 strcpy (saved_suffix
+ suffix_length
,
4774 TARGET_OBJECT_SUFFIX
);
4776 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4779 if (compare_debug
< 0)
4781 suffix
= concat (".gk", suffix
, NULL
);
4785 /* If -save-temps=obj and -o were specified, use that for the
4787 if (save_temps_length
)
4790 temp_filename_length
4791 = save_temps_length
+ suffix_length
+ 1;
4792 tmp
= (char *) alloca (temp_filename_length
);
4793 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
4794 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
4795 tmp
[save_temps_length
+ suffix_length
] = '\0';
4796 temp_filename
= save_string (tmp
, save_temps_length
4798 obstack_grow (&obstack
, temp_filename
,
4799 temp_filename_length
);
4801 delete_this_arg
= 0;
4805 /* If the gcc_input_filename has the same suffix specified
4806 for the %g, %u, or %U, and -save-temps is specified,
4807 we could end up using that file as an intermediate
4808 thus clobbering the user's source file (.e.g.,
4809 gcc -save-temps foo.s would clobber foo.s with the
4810 output of cpp0). So check for this condition and
4811 generate a temp file as the intermediate. */
4813 if (save_temps_flag
)
4816 temp_filename_length
= basename_length
+ suffix_length
+ 1;
4817 tmp
= (char *) alloca (temp_filename_length
);
4818 memcpy (tmp
, input_basename
, basename_length
);
4819 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
4820 tmp
[basename_length
+ suffix_length
] = '\0';
4821 temp_filename
= tmp
;
4823 if (filename_cmp (temp_filename
, gcc_input_filename
) != 0)
4825 #ifndef HOST_LACKS_INODE_NUMBERS
4826 struct stat st_temp
;
4828 /* Note, set_input() resets input_stat_set to 0. */
4829 if (input_stat_set
== 0)
4831 input_stat_set
= stat (gcc_input_filename
,
4833 if (input_stat_set
>= 0)
4837 /* If we have the stat for the gcc_input_filename
4838 and we can do the stat for the temp_filename
4839 then the they could still refer to the same
4840 file if st_dev/st_ino's are the same. */
4841 if (input_stat_set
!= 1
4842 || stat (temp_filename
, &st_temp
) < 0
4843 || input_stat
.st_dev
!= st_temp
.st_dev
4844 || input_stat
.st_ino
!= st_temp
.st_ino
)
4846 /* Just compare canonical pathnames. */
4847 char* input_realname
= lrealpath (gcc_input_filename
);
4848 char* temp_realname
= lrealpath (temp_filename
);
4849 bool files_differ
= filename_cmp (input_realname
, temp_realname
);
4850 free (input_realname
);
4851 free (temp_realname
);
4855 temp_filename
= save_string (temp_filename
,
4856 temp_filename_length
+ 1);
4857 obstack_grow (&obstack
, temp_filename
,
4858 temp_filename_length
);
4860 delete_this_arg
= 0;
4866 /* See if we already have an association of %g/%u/%U and
4868 for (t
= temp_names
; t
; t
= t
->next
)
4869 if (t
->length
== suffix_length
4870 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4871 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4874 /* Make a new association if needed. %u and %j
4876 if (t
== 0 || c
== 'u' || c
== 'j')
4880 t
= XNEW (struct temp_name
);
4881 t
->next
= temp_names
;
4884 t
->length
= suffix_length
;
4887 t
->suffix
= saved_suffix
;
4888 saved_suffix
= NULL
;
4891 t
->suffix
= save_string (suffix
, suffix_length
);
4892 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4893 temp_filename
= make_temp_file (t
->suffix
);
4894 temp_filename_length
= strlen (temp_filename
);
4895 t
->filename
= temp_filename
;
4896 t
->filename_length
= temp_filename_length
;
4899 free (saved_suffix
);
4901 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4902 delete_this_arg
= 1;
4910 if (at_file_supplied
)
4912 /* We are going to expand `%i' to `@FILE', where FILE
4913 is a newly-created temporary filename. The filenames
4914 that would usually be expanded in place of %o will be
4915 written to the temporary file. */
4920 for (i
= 0; i
< n_infiles
; i
++)
4921 if (compile_input_file_p (&infiles
[i
]))
4924 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
4926 /* Copy the strings over. */
4927 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
4928 if (compile_input_file_p (&infiles
[i
]))
4930 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
4931 infiles
[i
].compiled
= true;
4936 create_at_file (argv
);
4939 for (i
= 0; (int) i
< n_infiles
; i
++)
4940 if (compile_input_file_p (&infiles
[i
]))
4942 store_arg (infiles
[i
].name
, 0, 0);
4943 infiles
[i
].compiled
= true;
4948 obstack_grow (&obstack
, gcc_input_filename
,
4949 input_filename_length
);
4956 struct spec_path_info info
;
4960 do_spec_1 ("-imultilib", 1, NULL
);
4961 /* Make this a separate argument. */
4962 do_spec_1 (" ", 0, NULL
);
4963 do_spec_1 (multilib_dir
, 1, NULL
);
4964 do_spec_1 (" ", 0, NULL
);
4969 do_spec_1 ("-imultiarch", 1, NULL
);
4970 /* Make this a separate argument. */
4971 do_spec_1 (" ", 0, NULL
);
4972 do_spec_1 (multiarch_dir
, 1, NULL
);
4973 do_spec_1 (" ", 0, NULL
);
4976 if (gcc_exec_prefix
)
4978 do_spec_1 ("-iprefix", 1, NULL
);
4979 /* Make this a separate argument. */
4980 do_spec_1 (" ", 0, NULL
);
4981 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4982 do_spec_1 (" ", 0, NULL
);
4985 if (target_system_root_changed
||
4986 (target_system_root
&& target_sysroot_hdrs_suffix
))
4988 do_spec_1 ("-isysroot", 1, NULL
);
4989 /* Make this a separate argument. */
4990 do_spec_1 (" ", 0, NULL
);
4991 do_spec_1 (target_system_root
, 1, NULL
);
4992 if (target_sysroot_hdrs_suffix
)
4993 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4994 do_spec_1 (" ", 0, NULL
);
4997 info
.option
= "-isystem";
4998 info
.append
= "include";
4999 info
.append_len
= strlen (info
.append
);
5000 info
.omit_relative
= false;
5001 info
.separate_options
= true;
5003 for_each_path (&include_prefixes
, false, info
.append_len
,
5006 info
.append
= "include-fixed";
5007 if (*sysroot_hdrs_suffix_spec
)
5008 info
.append
= concat (info
.append
, dir_separator_str
,
5009 multilib_dir
, NULL
);
5010 info
.append_len
= strlen (info
.append
);
5011 for_each_path (&include_prefixes
, false, info
.append_len
,
5018 int max
= n_infiles
;
5019 max
+= lang_specific_extra_outfiles
;
5021 if (HAVE_GNU_LD
&& at_file_supplied
)
5023 /* We are going to expand `%o' to `@FILE', where FILE
5024 is a newly-created temporary filename. The filenames
5025 that would usually be expanded in place of %o will be
5026 written to the temporary file. */
5031 /* Convert OUTFILES into a form suitable for writeargv. */
5033 /* Determine how many are non-NULL. */
5034 for (n_files
= 0, i
= 0; i
< max
; i
++)
5035 n_files
+= outfiles
[i
] != NULL
;
5037 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5039 /* Copy the strings over. */
5040 for (i
= 0, j
= 0; i
< max
; i
++)
5043 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5048 create_at_file (argv
);
5051 for (i
= 0; i
< max
; i
++)
5053 store_arg (outfiles
[i
], 0, 0);
5058 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5063 this_is_library_file
= 1;
5067 this_is_linker_script
= 1;
5071 outfiles
[input_file_number
] = NULL
;
5075 this_is_output_file
= 1;
5080 unsigned int cur_index
= argbuf
.length ();
5081 /* Handle the {...} following the %W. */
5083 fatal_error ("spec %qs has invalid %<%%W%c%>", spec
, *p
);
5084 p
= handle_braces (p
+ 1);
5088 /* If any args were output, mark the last one for deletion
5090 if (argbuf
.length () != cur_index
)
5091 record_temp_file (argbuf
.last (), 0, 1);
5095 /* %x{OPTION} records OPTION for %X to output. */
5103 /* Skip past the option value and make a copy. */
5105 fatal_error ("spec %qs has invalid %<%%x%c%>", spec
, *p
);
5108 string
= save_string (p1
+ 1, p
- p1
- 2);
5110 /* See if we already recorded this option. */
5111 FOR_EACH_VEC_ELT (linker_options
, ix
, opt
)
5112 if (! strcmp (string
, opt
))
5118 /* This option is new; add it. */
5119 add_linker_option (string
, strlen (string
));
5124 /* Dump out the options accumulated previously using %x. */
5126 do_specs_vec (linker_options
);
5129 /* Dump out the options accumulated previously using -Wa,. */
5131 do_specs_vec (assembler_options
);
5134 /* Dump out the options accumulated previously using -Wp,. */
5136 do_specs_vec (preprocessor_options
);
5139 /* Here are digits and numbers that just process
5140 a certain constant string as a spec. */
5143 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5149 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5155 value
= do_spec_1 (asm_spec
, 0, NULL
);
5161 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5168 const char *const spec
5169 = (input_file_compiler
->cpp_spec
5170 ? input_file_compiler
->cpp_spec
5172 value
= do_spec_1 (spec
, 0, NULL
);
5179 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5185 value
= do_spec_1 (link_spec
, 0, NULL
);
5191 value
= do_spec_1 (lib_spec
, 0, NULL
);
5197 if (multilib_os_dir
== NULL
)
5198 obstack_1grow (&obstack
, '.');
5200 obstack_grow (&obstack
, multilib_os_dir
,
5201 strlen (multilib_os_dir
));
5205 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5211 /* We assume there is a directory
5212 separator at the end of this string. */
5213 if (target_system_root
)
5215 obstack_grow (&obstack
, target_system_root
,
5216 strlen (target_system_root
));
5217 if (target_sysroot_suffix
)
5218 obstack_grow (&obstack
, target_sysroot_suffix
,
5219 strlen (target_sysroot_suffix
));
5224 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5229 /* Here we define characters other than letters and digits. */
5232 p
= handle_braces (p
);
5238 p
= handle_spec_function (p
);
5244 obstack_1grow (&obstack
, '%');
5251 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5253 suffix_subst
= save_string (p
- 1, len
+ 1);
5258 /* Henceforth ignore the option(s) matching the pattern
5264 int have_wildcard
= 0;
5269 switch_option
= SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
;
5271 switch_option
= SWITCH_IGNORE
;
5273 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5276 if (p
[len
-1] == '*')
5279 for (i
= 0; i
< n_switches
; i
++)
5280 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5281 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5283 switches
[i
].live_cond
|= switch_option
;
5284 /* User switch be validated from validate_all_switches.
5285 when the definition is seen from the spec file.
5286 If not defined anywhere, will be rejected. */
5287 if (switches
[i
].known
)
5288 switches
[i
].validated
= true;
5296 if (soft_matched_part
)
5298 if (soft_matched_part
[0])
5299 do_spec_1 (soft_matched_part
, 1, NULL
);
5300 do_spec_1 (" ", 0, NULL
);
5303 /* Catch the case where a spec string contains something like
5304 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5305 hand side of the :. */
5306 error ("spec failure: %<%%*%> has not been initialized by pattern match");
5309 /* Process a string found as the value of a spec given by name.
5310 This feature allows individual machine descriptions
5311 to add and use their own specs. */
5314 const char *name
= p
;
5315 struct spec_list
*sl
;
5318 /* The string after the S/P is the name of a spec that is to be
5320 while (*p
&& *p
!= ')')
5323 /* See if it's in the list. */
5324 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5325 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5327 name
= *(sl
->ptr_spec
);
5329 fnotice (stderr
, "Processing spec (%s), which is '%s'\n",
5337 value
= do_spec_1 (name
, 0, NULL
);
5342 /* Discard the closing paren. */
5349 error ("spec failure: unrecognized spec option %qc", c
);
5355 /* Backslash: treat next character as ordinary. */
5360 /* Ordinary character: put it into the current argument. */
5361 obstack_1grow (&obstack
, c
);
5365 /* End of string. If we are processing a spec function, we need to
5366 end any pending argument. */
5367 if (processing_spec_function
)
5373 /* Look up a spec function. */
5375 static const struct spec_function
*
5376 lookup_spec_function (const char *name
)
5378 const struct spec_function
*sf
;
5380 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5381 if (strcmp (sf
->name
, name
) == 0)
5387 /* Evaluate a spec function. */
5390 eval_spec_function (const char *func
, const char *args
)
5392 const struct spec_function
*sf
;
5393 const char *funcval
;
5395 /* Saved spec processing context. */
5396 vec
<const_char_p
> save_argbuf
;
5399 int save_delete_this_arg
;
5400 int save_this_is_output_file
;
5401 int save_this_is_library_file
;
5402 int save_input_from_pipe
;
5403 int save_this_is_linker_script
;
5404 const char *save_suffix_subst
;
5406 int save_growing_size
;
5407 void *save_growing_value
;
5409 sf
= lookup_spec_function (func
);
5411 fatal_error ("unknown spec function %qs", func
);
5413 /* Push the spec processing context. */
5414 save_argbuf
= argbuf
;
5416 save_arg_going
= arg_going
;
5417 save_delete_this_arg
= delete_this_arg
;
5418 save_this_is_output_file
= this_is_output_file
;
5419 save_this_is_library_file
= this_is_library_file
;
5420 save_this_is_linker_script
= this_is_linker_script
;
5421 save_input_from_pipe
= input_from_pipe
;
5422 save_suffix_subst
= suffix_subst
;
5424 /* If we have some object growing now, finalize it so the args and function
5425 eval proceed from a cleared context. This is needed to prevent the first
5426 constructed arg from mistakenly including the growing value. We'll push
5427 this value back on the obstack once the function evaluation is done, to
5428 restore a consistent processing context for our caller. This is fine as
5429 the address of growing objects isn't guaranteed to remain stable until
5430 they are finalized, and we expect this situation to be rare enough for
5431 the extra copy not to be an issue. */
5432 save_growing_size
= obstack_object_size (&obstack
);
5433 if (save_growing_size
> 0)
5434 save_growing_value
= obstack_finish (&obstack
);
5436 /* Create a new spec processing context, and build the function
5440 if (do_spec_2 (args
) < 0)
5441 fatal_error ("error in args to spec function %qs", func
);
5443 /* argbuf_index is an index for the next argument to be inserted, and
5444 so contains the count of the args already inserted. */
5446 funcval
= (*sf
->func
) (argbuf
.length (),
5449 /* Pop the spec processing context. */
5451 argbuf
= save_argbuf
;
5453 arg_going
= save_arg_going
;
5454 delete_this_arg
= save_delete_this_arg
;
5455 this_is_output_file
= save_this_is_output_file
;
5456 this_is_library_file
= save_this_is_library_file
;
5457 this_is_linker_script
= save_this_is_linker_script
;
5458 input_from_pipe
= save_input_from_pipe
;
5459 suffix_subst
= save_suffix_subst
;
5461 if (save_growing_size
> 0)
5462 obstack_grow (&obstack
, save_growing_value
, save_growing_size
);
5467 /* Handle a spec function call of the form:
5471 ARGS is processed as a spec in a separate context and split into an
5472 argument vector in the normal fashion. The function returns a string
5473 containing a spec which we then process in the caller's context, or
5474 NULL if no processing is required. */
5477 handle_spec_function (const char *p
)
5480 const char *endp
, *funcval
;
5483 processing_spec_function
++;
5485 /* Get the function name. */
5486 for (endp
= p
; *endp
!= '\0'; endp
++)
5488 if (*endp
== '(') /* ) */
5490 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5491 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5492 fatal_error ("malformed spec function name");
5494 if (*endp
!= '(') /* ) */
5495 fatal_error ("no arguments for spec function");
5496 func
= save_string (p
, endp
- p
);
5499 /* Get the arguments. */
5500 for (count
= 0; *endp
!= '\0'; endp
++)
5509 else if (*endp
== '(') /* ) */
5514 fatal_error ("malformed spec function arguments");
5515 args
= save_string (p
, endp
- p
);
5518 /* p now points to just past the end of the spec function expression. */
5520 funcval
= eval_spec_function (func
, args
);
5521 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5527 processing_spec_function
--;
5532 /* Inline subroutine of handle_braces. Returns true if the current
5533 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5535 input_suffix_matches (const char *atom
, const char *end_atom
)
5537 return (input_suffix
5538 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5539 && input_suffix
[end_atom
- atom
] == '\0');
5542 /* Subroutine of handle_braces. Returns true if the current
5543 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
5545 input_spec_matches (const char *atom
, const char *end_atom
)
5547 return (input_file_compiler
5548 && input_file_compiler
->suffix
5549 && input_file_compiler
->suffix
[0] != '\0'
5550 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
5552 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
5555 /* Subroutine of handle_braces. Returns true if a switch
5556 matching the atom bracketed by ATOM and END_ATOM appeared on the
5559 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5562 int len
= end_atom
- atom
;
5563 int plen
= starred
? len
: -1;
5565 for (i
= 0; i
< n_switches
; i
++)
5566 if (!strncmp (switches
[i
].part1
, atom
, len
)
5567 && (starred
|| switches
[i
].part1
[len
] == '\0')
5568 && check_live_switch (i
, plen
))
5571 /* Check if a switch with separated form matching the atom.
5572 We check -D and -U switches. */
5573 else if (switches
[i
].args
!= 0)
5575 if ((*switches
[i
].part1
== 'D' || *switches
[i
].part1
== 'U')
5576 && *switches
[i
].part1
== atom
[0])
5578 if (!strncmp (switches
[i
].args
[0], &atom
[1], len
- 1)
5579 && (starred
|| (switches
[i
].part1
[1] == '\0'
5580 && switches
[i
].args
[0][len
- 1] == '\0'))
5581 && check_live_switch (i
, (starred
? 1 : -1)))
5589 /* Inline subroutine of handle_braces. Mark all of the switches which
5590 match ATOM (extends to END_ATOM; STARRED indicates whether there
5591 was a star after the atom) for later processing. */
5593 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5596 int len
= end_atom
- atom
;
5597 int plen
= starred
? len
: -1;
5599 for (i
= 0; i
< n_switches
; i
++)
5600 if (!strncmp (switches
[i
].part1
, atom
, len
)
5601 && (starred
|| switches
[i
].part1
[len
] == '\0')
5602 && check_live_switch (i
, plen
))
5603 switches
[i
].ordering
= 1;
5606 /* Inline subroutine of handle_braces. Process all the currently
5607 marked switches through give_switch, and clear the marks. */
5609 process_marked_switches (void)
5613 for (i
= 0; i
< n_switches
; i
++)
5614 if (switches
[i
].ordering
== 1)
5616 switches
[i
].ordering
= 0;
5621 /* Handle a %{ ... } construct. P points just inside the leading {.
5622 Returns a pointer one past the end of the brace block, or 0
5623 if we call do_spec_1 and that returns -1. */
5626 handle_braces (const char *p
)
5628 const char *atom
, *end_atom
;
5629 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5630 const char *orig
= p
;
5638 bool a_must_be_last
= false;
5639 bool ordered_set
= false;
5640 bool disjunct_set
= false;
5641 bool disj_matched
= false;
5642 bool disj_starred
= true;
5643 bool n_way_choice
= false;
5644 bool n_way_matched
= false;
5646 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5653 /* Scan one "atom" (S in the description above of %{}, possibly
5654 with '!', '.', '@', ',', or '*' modifiers). */
5656 a_is_suffix
= false;
5657 a_is_starred
= false;
5658 a_is_negated
= false;
5659 a_is_spectype
= false;
5663 p
++, a_is_negated
= true;
5667 p
++, a_is_suffix
= true;
5669 p
++, a_is_spectype
= true;
5672 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5673 || *p
== ',' || *p
== '.' || *p
== '@')
5678 p
++, a_is_starred
= 1;
5684 /* Substitute the switch(es) indicated by the current atom. */
5686 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5687 || a_is_spectype
|| atom
== end_atom
)
5690 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5693 process_marked_switches ();
5697 /* Substitute some text if the current atom appears as a switch
5699 disjunct_set
= true;
5703 if (atom
== end_atom
)
5705 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5706 || a_is_negated
|| a_is_suffix
|| a_is_spectype
5710 /* An empty term may appear as the last choice of an
5711 N-way choice set; it means "otherwise". */
5712 a_must_be_last
= true;
5713 disj_matched
= !n_way_matched
;
5714 disj_starred
= false;
5718 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
5722 disj_starred
= false;
5724 /* Don't bother testing this atom if we already have a
5726 if (!disj_matched
&& !n_way_matched
)
5729 a_matched
= input_suffix_matches (atom
, end_atom
);
5730 else if (a_is_spectype
)
5731 a_matched
= input_spec_matches (atom
, end_atom
);
5733 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5735 if (a_matched
!= a_is_negated
)
5737 disj_matched
= true;
5739 d_end_atom
= end_atom
;
5746 /* Found the body, that is, the text to substitute if the
5747 current disjunction matches. */
5748 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5749 disj_matched
&& !n_way_matched
);
5753 /* If we have an N-way choice, reset state for the next
5757 n_way_choice
= true;
5758 n_way_matched
|= disj_matched
;
5759 disj_matched
= false;
5760 disj_starred
= true;
5761 d_atom
= d_end_atom
= NULL
;
5770 while (*p
++ != '}');
5775 fatal_error ("braced spec %qs is invalid at %qc", orig
, *p
);
5780 /* Subroutine of handle_braces. Scan and process a brace substitution body
5781 (X in the description of %{} syntax). P points one past the colon;
5782 ATOM and END_ATOM bracket the first atom which was found to be true
5783 (present) in the current disjunction; STARRED indicates whether all
5784 the atoms in the current disjunction were starred (for syntax validation);
5785 MATCHED indicates whether the disjunction matched or not, and therefore
5786 whether or not the body is to be processed through do_spec_1 or just
5787 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5791 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5792 int starred
, int matched
)
5794 const char *body
, *end_body
;
5795 unsigned int nesting_level
;
5796 bool have_subst
= false;
5798 /* Locate the closing } or ;, honoring nested braces.
5799 Trim trailing whitespace. */
5808 if (!--nesting_level
)
5811 else if (*p
== ';' && nesting_level
== 1)
5813 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5815 else if (*p
== '\0')
5821 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5824 if (have_subst
&& !starred
)
5829 /* Copy the substitution body to permanent storage and execute it.
5830 If have_subst is false, this is a simple matter of running the
5831 body through do_spec_1... */
5832 char *string
= save_string (body
, end_body
- body
);
5835 if (do_spec_1 (string
, 0, NULL
) < 0)
5840 /* ... but if have_subst is true, we have to process the
5841 body once for each matching switch, with %* set to the
5842 variant part of the switch. */
5843 unsigned int hard_match_len
= end_atom
- atom
;
5846 for (i
= 0; i
< n_switches
; i
++)
5847 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5848 && check_live_switch (i
, hard_match_len
))
5850 if (do_spec_1 (string
, 0,
5851 &switches
[i
].part1
[hard_match_len
]) < 0)
5853 /* Pass any arguments this switch has. */
5855 suffix_subst
= NULL
;
5863 fatal_error ("braced spec body %qs is invalid", body
);
5866 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5867 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5868 spec, or -1 if either exact match or %* is used.
5870 A -O switch is obsoleted by a later -O switch. A -f, -g, -m, or -W switch
5871 whose value does not begin with "no-" is obsoleted by the same value
5872 with the "no-", similarly for a switch with the "no-" prefix. */
5875 check_live_switch (int switchnum
, int prefix_length
)
5877 const char *name
= switches
[switchnum
].part1
;
5880 /* If we already processed this switch and determined if it was
5881 live or not, return our past determination. */
5882 if (switches
[switchnum
].live_cond
!= 0)
5883 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
5884 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
5885 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
5888 /* In the common case of {<at-most-one-letter>*}, a negating
5889 switch would always match, so ignore that case. We will just
5890 send the conflicting switches to the compiler phase. */
5891 if (prefix_length
>= 0 && prefix_length
<= 1)
5894 /* Now search for duplicate in a manner that depends on the name. */
5898 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5899 if (switches
[i
].part1
[0] == 'O')
5901 switches
[switchnum
].validated
= true;
5902 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5907 case 'W': case 'f': case 'm': case 'g':
5908 if (! strncmp (name
+ 1, "no-", 3))
5910 /* We have Xno-YYY, search for XYYY. */
5911 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5912 if (switches
[i
].part1
[0] == name
[0]
5913 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5915 /* --specs are validated with the validate_switches mechanism. */
5916 if (switches
[switchnum
].known
)
5917 switches
[switchnum
].validated
= true;
5918 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5924 /* We have XYYY, search for Xno-YYY. */
5925 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5926 if (switches
[i
].part1
[0] == name
[0]
5927 && switches
[i
].part1
[1] == 'n'
5928 && switches
[i
].part1
[2] == 'o'
5929 && switches
[i
].part1
[3] == '-'
5930 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5932 /* --specs are validated with the validate_switches mechanism. */
5933 if (switches
[switchnum
].known
)
5934 switches
[switchnum
].validated
= true;
5935 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5942 /* Otherwise the switch is live. */
5943 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
5947 /* Pass a switch to the current accumulating command
5948 in the same form that we received it.
5949 SWITCHNUM identifies the switch; it is an index into
5950 the vector of switches gcc received, which is `switches'.
5951 This cannot fail since it never finishes a command line.
5953 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5956 give_switch (int switchnum
, int omit_first_word
)
5958 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
5961 if (!omit_first_word
)
5963 do_spec_1 ("-", 0, NULL
);
5964 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5967 if (switches
[switchnum
].args
!= 0)
5970 for (p
= switches
[switchnum
].args
; *p
; p
++)
5972 const char *arg
= *p
;
5974 do_spec_1 (" ", 0, NULL
);
5977 unsigned length
= strlen (arg
);
5980 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5981 if (arg
[length
] == '.')
5983 (CONST_CAST(char *, arg
))[length
] = 0;
5987 do_spec_1 (arg
, 1, NULL
);
5989 (CONST_CAST(char *, arg
))[length
] = '.';
5990 do_spec_1 (suffix_subst
, 1, NULL
);
5993 do_spec_1 (arg
, 1, NULL
);
5997 do_spec_1 (" ", 0, NULL
);
5998 switches
[switchnum
].validated
= true;
6001 /* Search for a file named NAME trying various prefixes including the
6002 user's -B prefix and some standard ones.
6003 Return the absolute file name found. If nothing is found, return NAME. */
6006 find_file (const char *name
)
6008 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
6009 return newname
? newname
: name
;
6012 /* Determine whether a directory exists. If LINKER, return 0 for
6013 certain fixed names not needed by the linker. */
6016 is_directory (const char *path1
, bool linker
)
6023 /* Ensure the string ends with "/.". The resulting path will be a
6024 directory even if the given path is a symbolic link. */
6025 len1
= strlen (path1
);
6026 path
= (char *) alloca (3 + len1
);
6027 memcpy (path
, path1
, len1
);
6029 if (!IS_DIR_SEPARATOR (cp
[-1]))
6030 *cp
++ = DIR_SEPARATOR
;
6034 /* Exclude directories that the linker is known to search. */
6036 && IS_DIR_SEPARATOR (path
[0])
6038 && filename_ncmp (path
+ 1, "lib", 3) == 0)
6040 && filename_ncmp (path
+ 1, "usr", 3) == 0
6041 && IS_DIR_SEPARATOR (path
[4])
6042 && filename_ncmp (path
+ 5, "lib", 3) == 0)))
6045 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6048 /* Set up the various global variables to indicate that we're processing
6049 the input file named FILENAME. */
6052 set_input (const char *filename
)
6056 gcc_input_filename
= filename
;
6057 input_filename_length
= strlen (gcc_input_filename
);
6058 input_basename
= lbasename (gcc_input_filename
);
6060 /* Find a suffix starting with the last period,
6061 and set basename_length to exclude that suffix. */
6062 basename_length
= strlen (input_basename
);
6063 suffixed_basename_length
= basename_length
;
6064 p
= input_basename
+ basename_length
;
6065 while (p
!= input_basename
&& *p
!= '.')
6067 if (*p
== '.' && p
!= input_basename
)
6069 basename_length
= p
- input_basename
;
6070 input_suffix
= p
+ 1;
6075 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6076 we will need to do a stat on the gcc_input_filename. The
6077 INPUT_STAT_SET signals that the stat is needed. */
6081 /* On fatal signals, delete all the temporary files. */
6084 fatal_signal (int signum
)
6086 signal (signum
, SIG_DFL
);
6087 delete_failure_queue ();
6088 delete_temp_files ();
6089 /* Get the same signal again, this time not handled,
6090 so its normal effect occurs. */
6091 kill (getpid (), signum
);
6094 /* Compare the contents of the two files named CMPFILE[0] and
6095 CMPFILE[1]. Return zero if they're identical, nonzero
6099 compare_files (char *cmpfile
[])
6102 FILE *temp
[2] = { NULL
, NULL
};
6108 void *map
[2] = { NULL
, NULL
};
6110 for (i
= 0; i
< 2; i
++)
6114 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
6116 error ("%s: could not determine length of compare-debug file %s",
6117 gcc_input_filename
, cmpfile
[i
]);
6122 length
[i
] = st
.st_size
;
6125 if (!ret
&& length
[0] != length
[1])
6127 error ("%s: -fcompare-debug failure (length)", gcc_input_filename
);
6132 for (i
= 0; i
< 2; i
++)
6134 int fd
= open (cmpfile
[i
], O_RDONLY
);
6137 error ("%s: could not open compare-debug file %s",
6138 gcc_input_filename
, cmpfile
[i
]);
6143 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
6146 if (map
[i
] == (void *) MAP_FAILED
)
6155 if (memcmp (map
[0], map
[1], length
[0]) != 0)
6157 error ("%s: -fcompare-debug failure", gcc_input_filename
);
6162 for (i
= 0; i
< 2; i
++)
6164 munmap ((caddr_t
) map
[i
], length
[i
]);
6173 for (i
= 0; i
< 2; i
++)
6175 temp
[i
] = fopen (cmpfile
[i
], "r");
6178 error ("%s: could not open compare-debug file %s",
6179 gcc_input_filename
, cmpfile
[i
]);
6185 if (!ret
&& temp
[0] && temp
[1])
6189 c0
= fgetc (temp
[0]);
6190 c1
= fgetc (temp
[1]);
6194 error ("%s: -fcompare-debug failure",
6195 gcc_input_filename
);
6204 for (i
= 1; i
>= 0; i
--)
6213 extern int main (int, char **);
6216 main (int argc
, char **argv
)
6220 int linker_was_run
= 0;
6221 int lang_n_infiles
= 0;
6222 int num_linker_inputs
= 0;
6223 char *explicit_link_files
;
6225 char *lto_wrapper_file
;
6227 struct user_specs
*uptr
;
6228 char **old_argv
= argv
;
6229 struct cl_decoded_option
*decoded_options
;
6230 unsigned int decoded_options_count
;
6232 p
= argv
[0] + strlen (argv
[0]);
6233 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6237 xmalloc_set_program_name (progname
);
6239 expandargv (&argc
, &argv
);
6241 /* Determine if any expansions were made. */
6242 if (argv
!= old_argv
)
6243 at_file_supplied
= true;
6245 /* Register the language-independent parameters. */
6246 global_init_params ();
6249 init_options_struct (&global_options
, &global_options_set
);
6251 decode_cmdline_options_to_array (argc
, CONST_CAST2 (const char **, char **,
6254 &decoded_options
, &decoded_options_count
);
6256 /* Unlock the stdio streams. */
6257 unlock_std_streams ();
6259 gcc_init_libintl ();
6261 diagnostic_initialize (global_dc
, 0);
6263 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6264 /* Perform host dependent initialization when needed. */
6265 GCC_DRIVER_HOST_INITIALIZATION
;
6268 if (atexit (delete_temp_files
) != 0)
6269 fatal_error ("atexit failed");
6271 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6272 signal (SIGINT
, fatal_signal
);
6274 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6275 signal (SIGHUP
, fatal_signal
);
6277 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6278 signal (SIGTERM
, fatal_signal
);
6280 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6281 signal (SIGPIPE
, fatal_signal
);
6284 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6285 receive the signal. A different setting is inheritable */
6286 signal (SIGCHLD
, SIG_DFL
);
6289 /* Parsing and gimplification sometimes need quite large stack.
6290 Increase stack size limits if possible. */
6291 stack_limit_increase (64 * 1024 * 1024);
6293 /* Allocate the argument vector. */
6296 obstack_init (&obstack
);
6298 /* Build multilib_select, et. al from the separate lines that make up each
6299 multilib selection. */
6301 const char *const *q
= multilib_raw
;
6304 obstack_init (&multilib_obstack
);
6305 while ((p
= *q
++) != (char *) 0)
6306 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6308 obstack_1grow (&multilib_obstack
, 0);
6309 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6311 q
= multilib_matches_raw
;
6312 while ((p
= *q
++) != (char *) 0)
6313 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6315 obstack_1grow (&multilib_obstack
, 0);
6316 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6318 q
= multilib_exclusions_raw
;
6319 while ((p
= *q
++) != (char *) 0)
6320 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6322 obstack_1grow (&multilib_obstack
, 0);
6323 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6326 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6329 obstack_1grow (&multilib_obstack
, ' ');
6330 obstack_grow (&multilib_obstack
,
6331 multilib_defaults_raw
[i
],
6332 strlen (multilib_defaults_raw
[i
]));
6336 obstack_1grow (&multilib_obstack
, 0);
6337 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6340 #ifdef INIT_ENVIRONMENT
6341 /* Set up any other necessary machine specific environment variables. */
6342 xputenv (INIT_ENVIRONMENT
);
6345 /* Make a table of what switches there are (switches, n_switches).
6346 Make a table of specified input files (infiles, n_infiles).
6347 Decode switches that are handled locally. */
6349 process_command (decoded_options_count
, decoded_options
);
6351 /* Initialize the vector of specs to just the default.
6352 This means one element containing 0s, as a terminator. */
6354 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
6355 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6356 n_compilers
= n_default_compilers
;
6358 /* Read specs from a file if there is one. */
6360 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6361 spec_version
, dir_separator_str
, NULL
);
6362 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6364 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6365 /* Read the specs file unless it is a default one. */
6366 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6367 read_specs (specs_file
, true, false);
6371 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6372 for any override of as, ld and libraries. */
6373 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
6374 + strlen (just_machine_suffix
) + sizeof ("specs"));
6376 strcpy (specs_file
, standard_exec_prefix
);
6377 strcat (specs_file
, just_machine_suffix
);
6378 strcat (specs_file
, "specs");
6379 if (access (specs_file
, R_OK
) == 0)
6380 read_specs (specs_file
, true, false);
6382 /* Process any configure-time defaults specified for the command line
6383 options, via OPTION_DEFAULT_SPECS. */
6384 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6385 do_option_spec (option_default_specs
[i
].name
,
6386 option_default_specs
[i
].spec
);
6388 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6389 of the command line. */
6391 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6392 do_self_spec (driver_self_specs
[i
]);
6394 /* If not cross-compiling, look for executables in the standard
6396 if (*cross_compile
== '0')
6398 if (*md_exec_prefix
)
6400 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6401 PREFIX_PRIORITY_LAST
, 0, 0);
6405 /* Process sysroot_suffix_spec. */
6406 if (*sysroot_suffix_spec
!= 0
6407 && !no_sysroot_suffix
6408 && do_spec_2 (sysroot_suffix_spec
) == 0)
6410 if (argbuf
.length () > 1)
6411 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6412 else if (argbuf
.length () == 1)
6413 target_sysroot_suffix
= xstrdup (argbuf
.last ());
6416 #ifdef HAVE_LD_SYSROOT
6417 /* Pass the --sysroot option to the linker, if it supports that. If
6418 there is a sysroot_suffix_spec, it has already been processed by
6419 this point, so target_system_root really is the system root we
6421 if (target_system_root
)
6423 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6424 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6425 set_spec ("link", XOBFINISH (&obstack
, const char *), false);
6429 /* Process sysroot_hdrs_suffix_spec. */
6430 if (*sysroot_hdrs_suffix_spec
!= 0
6431 && !no_sysroot_suffix
6432 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6434 if (argbuf
.length () > 1)
6435 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6436 else if (argbuf
.length () == 1)
6437 target_sysroot_hdrs_suffix
= xstrdup (argbuf
.last ());
6440 /* Look for startfiles in the standard places. */
6441 if (*startfile_prefix_spec
!= 0
6442 && do_spec_2 (startfile_prefix_spec
) == 0
6443 && do_spec_1 (" ", 0, NULL
) == 0)
6447 FOR_EACH_VEC_ELT (argbuf
, ndx
, arg
)
6448 add_sysrooted_prefix (&startfile_prefixes
, arg
, "BINUTILS",
6449 PREFIX_PRIORITY_LAST
, 0, 1);
6451 /* We should eventually get rid of all these and stick to
6452 startfile_prefix_spec exclusively. */
6453 else if (*cross_compile
== '0' || target_system_root
)
6455 if (*md_startfile_prefix
)
6456 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6457 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6459 if (*md_startfile_prefix_1
)
6460 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6461 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6463 /* If standard_startfile_prefix is relative, base it on
6464 standard_exec_prefix. This lets us move the installed tree
6465 as a unit. If GCC_EXEC_PREFIX is defined, base
6466 standard_startfile_prefix on that as well.
6468 If the prefix is relative, only search it for native compilers;
6469 otherwise we will search a directory containing host libraries. */
6470 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6471 add_sysrooted_prefix (&startfile_prefixes
,
6472 standard_startfile_prefix
, "BINUTILS",
6473 PREFIX_PRIORITY_LAST
, 0, 1);
6474 else if (*cross_compile
== '0')
6476 add_prefix (&startfile_prefixes
,
6477 concat (gcc_exec_prefix
6478 ? gcc_exec_prefix
: standard_exec_prefix
,
6480 standard_startfile_prefix
, NULL
),
6481 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6484 /* Sysrooted prefixes are relocated because target_system_root is
6485 also relocated by gcc_exec_prefix. */
6486 if (*standard_startfile_prefix_1
)
6487 add_sysrooted_prefix (&startfile_prefixes
,
6488 standard_startfile_prefix_1
, "BINUTILS",
6489 PREFIX_PRIORITY_LAST
, 0, 1);
6490 if (*standard_startfile_prefix_2
)
6491 add_sysrooted_prefix (&startfile_prefixes
,
6492 standard_startfile_prefix_2
, "BINUTILS",
6493 PREFIX_PRIORITY_LAST
, 0, 1);
6496 /* Process any user specified specs in the order given on the command
6498 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6500 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6502 read_specs (filename
? filename
: uptr
->filename
, false, true);
6505 /* Process any user self specs. */
6507 struct spec_list
*sl
;
6508 for (sl
= specs
; sl
; sl
= sl
->next
)
6509 if (sl
->name_len
== sizeof "self_spec" - 1
6510 && !strcmp (sl
->name
, "self_spec"))
6511 do_self_spec (*sl
->ptr_spec
);
6516 enum save_temps save
;
6518 if (!compare_debug_second
)
6520 n_switches_debug_check
[1] = n_switches
;
6521 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
6522 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
6525 do_self_spec ("%:compare-debug-self-opt()");
6526 n_switches_debug_check
[0] = n_switches
;
6527 n_switches_alloc_debug_check
[0] = n_switches_alloc
;
6528 switches_debug_check
[0] = switches
;
6530 n_switches
= n_switches_debug_check
[1];
6531 n_switches_alloc
= n_switches_alloc_debug_check
[1];
6532 switches
= switches_debug_check
[1];
6535 /* Avoid crash when computing %j in this early. */
6536 save
= save_temps_flag
;
6537 save_temps_flag
= SAVE_TEMPS_NONE
;
6539 compare_debug
= -compare_debug
;
6540 do_self_spec ("%:compare-debug-self-opt()");
6542 save_temps_flag
= save
;
6544 if (!compare_debug_second
)
6546 n_switches_debug_check
[1] = n_switches
;
6547 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
6548 switches_debug_check
[1] = switches
;
6549 compare_debug
= -compare_debug
;
6550 n_switches
= n_switches_debug_check
[0];
6551 n_switches_alloc
= n_switches_debug_check
[0];
6552 switches
= switches_debug_check
[0];
6557 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6558 if (gcc_exec_prefix
)
6559 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6560 spec_version
, dir_separator_str
, NULL
);
6562 /* Now we have the specs.
6563 Set the `valid' bits for switches that match anything in any spec. */
6565 validate_all_switches ();
6567 /* Now that we have the switches and the specs, set
6568 the subdirectory based on the options. */
6569 set_multilib_dir ();
6571 /* Set up to remember the pathname of gcc and any options
6572 needed for collect. We use argv[0] instead of progname because
6573 we need the complete pathname. */
6574 obstack_init (&collect_obstack
);
6575 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6576 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6577 xputenv (XOBFINISH (&collect_obstack
, char *));
6579 /* Set up to remember the pathname of the lto wrapper. */
6582 lto_wrapper_file
= NULL
;
6584 lto_wrapper_file
= find_a_file (&exec_prefixes
, "lto-wrapper",
6586 if (lto_wrapper_file
)
6588 lto_wrapper_spec
= lto_wrapper_file
;
6589 obstack_init (&collect_obstack
);
6590 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
6591 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
6592 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
6593 strlen (lto_wrapper_spec
) + 1);
6594 xputenv (XOBFINISH (&collect_obstack
, char *));
6597 /* Reject switches that no pass was interested in. */
6599 for (i
= 0; (int) i
< n_switches
; i
++)
6600 if (! switches
[i
].validated
)
6601 error ("unrecognized command line option %<-%s%>", switches
[i
].part1
);
6603 /* Obey some of the options. */
6605 if (print_search_dirs
)
6607 printf (_("install: %s%s\n"),
6608 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
6609 gcc_exec_prefix
? "" : machine_suffix
);
6610 printf (_("programs: %s\n"),
6611 build_search_list (&exec_prefixes
, "", false, false));
6612 printf (_("libraries: %s\n"),
6613 build_search_list (&startfile_prefixes
, "", false, true));
6617 if (print_file_name
)
6619 printf ("%s\n", find_file (print_file_name
));
6623 if (print_prog_name
)
6625 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6626 printf ("%s\n", (newname
? newname
: print_prog_name
));
6630 if (print_multi_lib
)
6632 print_multilib_info ();
6636 if (print_multi_directory
)
6638 if (multilib_dir
== NULL
)
6641 printf ("%s\n", multilib_dir
);
6645 if (print_multiarch
)
6647 if (multiarch_dir
== NULL
)
6650 printf ("%s\n", multiarch_dir
);
6656 if (target_system_root
)
6658 if (target_sysroot_suffix
)
6659 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
6661 printf ("%s\n", target_system_root
);
6666 if (print_multi_os_directory
)
6668 if (multilib_os_dir
== NULL
)
6671 printf ("%s\n", multilib_os_dir
);
6675 if (print_sysroot_headers_suffix
)
6677 if (*sysroot_hdrs_suffix_spec
)
6679 printf("%s\n", (target_sysroot_hdrs_suffix
6680 ? target_sysroot_hdrs_suffix
6685 /* The error status indicates that only one set of fixed
6686 headers should be built. */
6687 fatal_error ("not configured with sysroot headers suffix");
6690 if (print_help_list
)
6696 printf (_("\nFor bug reporting instructions, please see:\n"));
6697 printf ("%s.\n", bug_report_url
);
6702 /* We do not exit here. Instead we have created a fake input file
6703 called 'help-dummy' which needs to be compiled, and we pass this
6704 on the various sub-processes, along with the --help switch.
6705 Ensure their output appears after ours. */
6706 fputc ('\n', stdout
);
6712 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
6714 printf ("Copyright %s 2012 Free Software Foundation, Inc.\n",
6716 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
6717 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
6722 /* We do not exit here. We use the same mechanism of --help to print
6723 the version of the sub-processes. */
6724 fputc ('\n', stdout
);
6733 fnotice (stderr
, "Target: %s\n", spec_machine
);
6734 fnotice (stderr
, "Configured with: %s\n", configuration_arguments
);
6736 #ifdef THREAD_MODEL_SPEC
6737 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6738 but there's no point in doing all this processing just to get
6739 thread_model back. */
6740 obstack_init (&obstack
);
6741 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6742 obstack_1grow (&obstack
, '\0');
6743 thrmod
= XOBFINISH (&obstack
, const char *);
6745 thrmod
= thread_model
;
6748 fnotice (stderr
, "Thread model: %s\n", thrmod
);
6750 /* compiler_version is truncated at the first space when initialized
6751 from version string, so truncate version_string at the first space
6752 before comparing. */
6753 for (n
= 0; version_string
[n
]; n
++)
6754 if (version_string
[n
] == ' ')
6757 if (! strncmp (version_string
, compiler_version
, n
)
6758 && compiler_version
[n
] == 0)
6759 fnotice (stderr
, "gcc version %s %s\n", version_string
,
6762 fnotice (stderr
, "gcc driver version %s %sexecuting gcc version %s\n",
6763 version_string
, pkgversion_string
, compiler_version
);
6769 if (n_infiles
== added_libraries
)
6770 fatal_error ("no input files");
6775 /* Make a place to record the compiler output file names
6776 that correspond to the input files. */
6779 i
+= lang_specific_extra_outfiles
;
6780 outfiles
= XCNEWVEC (const char *, i
);
6782 /* Record which files were specified explicitly as link input. */
6784 explicit_link_files
= XCNEWVEC (char, n_infiles
);
6786 combine_inputs
= have_o
|| flag_wpa
;
6788 for (i
= 0; (int) i
< n_infiles
; i
++)
6790 const char *name
= infiles
[i
].name
;
6791 struct compiler
*compiler
= lookup_compiler (name
,
6793 infiles
[i
].language
);
6795 if (compiler
&& !(compiler
->combinable
))
6796 combine_inputs
= false;
6798 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6799 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6800 infiles
[i
].incompiler
= compiler
;
6804 input_file_compiler
= compiler
;
6805 infiles
[i
].incompiler
= compiler
;
6809 /* Since there is no compiler for this input file, assume it is a
6811 explicit_link_files
[i
] = 1;
6812 infiles
[i
].incompiler
= NULL
;
6814 infiles
[i
].compiled
= false;
6815 infiles
[i
].preprocessed
= false;
6818 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
6819 fatal_error ("cannot specify -o with -c, -S or -E with multiple files");
6821 for (i
= 0; (int) i
< n_infiles
; i
++)
6823 int this_file_error
= 0;
6825 /* Tell do_spec what to substitute for %i. */
6827 input_file_number
= i
;
6828 set_input (infiles
[i
].name
);
6830 if (infiles
[i
].compiled
)
6833 /* Use the same thing in %o, unless cp->spec says otherwise. */
6835 outfiles
[i
] = gcc_input_filename
;
6837 /* Figure out which compiler from the file's suffix. */
6840 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6841 infiles
[i
].language
);
6843 if (input_file_compiler
)
6845 /* Ok, we found an applicable compiler. Run its spec. */
6847 if (input_file_compiler
->spec
[0] == '#')
6849 error ("%s: %s compiler not installed on this system",
6850 gcc_input_filename
, &input_file_compiler
->spec
[1]);
6851 this_file_error
= 1;
6857 free (debug_check_temp_file
[0]);
6858 debug_check_temp_file
[0] = NULL
;
6860 free (debug_check_temp_file
[1]);
6861 debug_check_temp_file
[1] = NULL
;
6864 value
= do_spec (input_file_compiler
->spec
);
6865 infiles
[i
].compiled
= true;
6867 this_file_error
= 1;
6868 else if (compare_debug
&& debug_check_temp_file
[0])
6871 inform (0, "recompiling with -fcompare-debug");
6873 compare_debug
= -compare_debug
;
6874 n_switches
= n_switches_debug_check
[1];
6875 n_switches_alloc
= n_switches_alloc_debug_check
[1];
6876 switches
= switches_debug_check
[1];
6878 value
= do_spec (input_file_compiler
->spec
);
6880 compare_debug
= -compare_debug
;
6881 n_switches
= n_switches_debug_check
[0];
6882 n_switches_alloc
= n_switches_alloc_debug_check
[0];
6883 switches
= switches_debug_check
[0];
6887 error ("during -fcompare-debug recompilation");
6888 this_file_error
= 1;
6891 gcc_assert (debug_check_temp_file
[1]
6892 && filename_cmp (debug_check_temp_file
[0],
6893 debug_check_temp_file
[1]));
6896 inform (0, "comparing final insns dumps");
6898 if (compare_files (debug_check_temp_file
))
6899 this_file_error
= 1;
6904 free (debug_check_temp_file
[0]);
6905 debug_check_temp_file
[0] = NULL
;
6907 free (debug_check_temp_file
[1]);
6908 debug_check_temp_file
[1] = NULL
;
6913 /* If this file's name does not contain a recognized suffix,
6914 record it as explicit linker input. */
6917 explicit_link_files
[i
] = 1;
6919 /* Clear the delete-on-failure queue, deleting the files in it
6920 if this compilation failed. */
6922 if (this_file_error
)
6924 delete_failure_queue ();
6927 /* If this compilation succeeded, don't delete those files later. */
6928 clear_failure_queue ();
6931 /* Reset the input file name to the first compile/object file name, for use
6932 with %b in LINK_SPEC. We use the first input file that we can find
6933 a compiler to compile it instead of using infiles.language since for
6934 languages other than C we use aliases that we then lookup later. */
6939 for (i
= 0; i
< n_infiles
; i
++)
6940 if (infiles
[i
].incompiler
6941 || (infiles
[i
].language
&& infiles
[i
].language
[0] != '*'))
6943 set_input (infiles
[i
].name
);
6950 /* Make sure INPUT_FILE_NUMBER points to first available open
6952 input_file_number
= n_infiles
;
6953 if (lang_specific_pre_link ())
6957 /* Determine if there are any linker input files. */
6958 num_linker_inputs
= 0;
6959 for (i
= 0; (int) i
< n_infiles
; i
++)
6960 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6961 num_linker_inputs
++;
6963 /* Run ld to link all the compiler output files. */
6965 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
6967 int tmp
= execution_count
;
6971 #if HAVE_LTO_PLUGIN > 0
6972 #if HAVE_LTO_PLUGIN == 2
6973 const char *fno_use_linker_plugin
= "fno-use-linker-plugin";
6975 const char *fuse_linker_plugin
= "fuse-linker-plugin";
6979 /* We'll use ld if we can't find collect2. */
6980 if (! strcmp (linker_name_spec
, "collect2"))
6982 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
6984 linker_name_spec
= "ld";
6987 #if HAVE_LTO_PLUGIN > 0
6988 #if HAVE_LTO_PLUGIN == 2
6989 if (!switch_matches (fno_use_linker_plugin
,
6990 fno_use_linker_plugin
6991 + strlen (fno_use_linker_plugin
), 0))
6993 if (switch_matches (fuse_linker_plugin
,
6995 + strlen (fuse_linker_plugin
), 0))
6998 linker_plugin_file_spec
= find_a_file (&exec_prefixes
,
6999 LTOPLUGINSONAME
, R_OK
,
7001 if (!linker_plugin_file_spec
)
7002 fatal_error ("-fuse-linker-plugin, but %s not found",
7006 lto_gcc_spec
= argv
[0];
7009 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
7011 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
7012 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
7014 if (print_subprocess_help
== 1)
7016 printf (_("\nLinker options\n==============\n\n"));
7017 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
7018 " to the linker.\n\n"));
7021 value
= do_spec (link_command_spec
);
7024 linker_was_run
= (tmp
!= execution_count
);
7027 /* If options said don't run linker,
7028 complain about input files to be given to the linker. */
7030 if (! linker_was_run
&& !seen_error ())
7031 for (i
= 0; (int) i
< n_infiles
; i
++)
7032 if (explicit_link_files
[i
]
7033 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
7034 warning (0, "%s: linker input file unused because linking not done",
7037 /* Delete some or all of the temporary files we made. */
7040 delete_failure_queue ();
7041 delete_temp_files ();
7043 if (print_help_list
)
7045 printf (("\nFor bug reporting instructions, please see:\n"));
7046 printf ("%s\n", bug_report_url
);
7050 return (signal_count
!= 0 ? 2
7051 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
7055 /* Find the proper compilation spec for the file name NAME,
7056 whose length is LENGTH. LANGUAGE is the specified language,
7057 or 0 if this file is to be passed to the linker. */
7059 static struct compiler
*
7060 lookup_compiler (const char *name
, size_t length
, const char *language
)
7062 struct compiler
*cp
;
7064 /* If this was specified by the user to be a linker input, indicate that. */
7065 if (language
!= 0 && language
[0] == '*')
7068 /* Otherwise, look for the language, if one is spec'd. */
7071 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7072 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
7075 error ("language %s not recognized", language
);
7079 /* Look for a suffix. */
7080 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7082 if (/* The suffix `-' matches only the file name `-'. */
7083 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7084 || (strlen (cp
->suffix
) < length
7085 /* See if the suffix matches the end of NAME. */
7086 && !strcmp (cp
->suffix
,
7087 name
+ length
- strlen (cp
->suffix
))
7092 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
7093 /* Look again, but case-insensitively this time. */
7095 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7097 if (/* The suffix `-' matches only the file name `-'. */
7098 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7099 || (strlen (cp
->suffix
) < length
7100 /* See if the suffix matches the end of NAME. */
7101 && ((!strcmp (cp
->suffix
,
7102 name
+ length
- strlen (cp
->suffix
))
7103 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
7104 && !strcasecmp (cp
->suffix
,
7105 name
+ length
- strlen (cp
->suffix
)))
7111 if (cp
>= compilers
)
7113 if (cp
->spec
[0] != '@')
7114 /* A non-alias entry: return it. */
7117 /* An alias entry maps a suffix to a language.
7118 Search for the language; pass 0 for NAME and LENGTH
7119 to avoid infinite recursion if language not found. */
7120 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
7126 save_string (const char *s
, int len
)
7128 char *result
= XNEWVEC (char, len
+ 1);
7130 memcpy (result
, s
, len
);
7136 pfatal_with_name (const char *name
)
7138 perror_with_name (name
);
7139 delete_temp_files ();
7144 perror_with_name (const char *name
)
7146 error ("%s: %m", name
);
7150 validate_switches_from_spec (const char *spec
, bool user
)
7152 const char *p
= spec
;
7155 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
7156 /* We have a switch spec. */
7157 p
= validate_switches (p
+ 1, user
);
7161 validate_all_switches (void)
7163 struct compiler
*comp
;
7164 struct spec_list
*spec
;
7166 for (comp
= compilers
; comp
->spec
; comp
++)
7167 validate_switches_from_spec (comp
->spec
, false);
7169 /* Look through the linked list of specs read from the specs file. */
7170 for (spec
= specs
; spec
; spec
= spec
->next
)
7171 validate_switches_from_spec (*spec
->ptr_spec
, spec
->user_p
);
7173 validate_switches_from_spec (link_command_spec
, false);
7176 /* Look at the switch-name that comes after START
7177 and mark as valid all supplied switches that match it. */
7180 validate_switches (const char *start
, bool user_spec
)
7182 const char *p
= start
;
7186 bool suffix
= false;
7187 bool starred
= false;
7189 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7198 if (*p
== '.' || *p
== ',')
7202 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7203 || *p
== ',' || *p
== '.' || *p
== '@')
7208 starred
= true, p
++;
7214 /* Mark all matching switches as valid. */
7215 for (i
= 0; i
< n_switches
; i
++)
7216 if (!strncmp (switches
[i
].part1
, atom
, len
)
7217 && (starred
|| switches
[i
].part1
[len
] == '\0')
7218 && (switches
[i
].known
|| user_spec
))
7219 switches
[i
].validated
= true;
7223 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
7226 if (*p
&& p
[-1] == ':')
7228 while (*p
&& *p
!= ';' && *p
!= '}')
7233 if (*p
== '{' || *p
== '<')
7234 p
= validate_switches (p
+1, user_spec
);
7235 else if (p
[0] == 'W' && p
[1] == '{')
7236 p
= validate_switches (p
+2, user_spec
);
7243 if (*p
&& p
[-1] == ';')
7257 static struct mdswitchstr
*mdswitches
;
7258 static int n_mdswitches
;
7260 /* Check whether a particular argument was used. The first time we
7261 canonicalize the switches to keep only the ones we care about. */
7264 used_arg (const char *p
, int len
)
7269 const char *replace
;
7274 static struct mswitchstr
*mswitches
;
7275 static int n_mswitches
;
7280 struct mswitchstr
*matches
;
7284 /* Break multilib_matches into the component strings of string
7285 and replacement string. */
7286 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7291 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
7293 q
= multilib_matches
;
7302 fatal_error ("multilib spec %qs is invalid",
7307 matches
[i
].len
= q
- matches
[i
].str
;
7309 matches
[i
].replace
= ++q
;
7310 while (*q
!= ';' && *q
!= '\0')
7313 goto invalid_matches
;
7316 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7322 /* Now build a list of the replacement string for switches that we care
7323 about. Make sure we allocate at least one entry. This prevents
7324 xmalloc from calling fatal, and prevents us from re-executing this
7327 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7328 for (i
= 0; i
< n_switches
; i
++)
7329 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
7331 int xlen
= strlen (switches
[i
].part1
);
7332 for (j
= 0; j
< cnt
; j
++)
7333 if (xlen
== matches
[j
].len
7334 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7336 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7337 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7338 mswitches
[n_mswitches
].replace
= (char *) 0;
7339 mswitches
[n_mswitches
].rep_len
= 0;
7345 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7346 on the command line nor any options mutually incompatible with
7348 for (i
= 0; i
< n_mdswitches
; i
++)
7352 for (q
= multilib_options
; *q
!= '\0'; q
++)
7358 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7359 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7361 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7368 if (*q
!= ' ' && *q
!= '\0')
7370 while (*r
!= ' ' && *r
!= '\0')
7373 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7376 if (used_arg (r
, q
- r
))
7381 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7382 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7383 mswitches
[n_mswitches
].replace
= (char *) 0;
7384 mswitches
[n_mswitches
].rep_len
= 0;
7397 for (i
= 0; i
< n_mswitches
; i
++)
7398 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7405 default_arg (const char *p
, int len
)
7409 for (i
= 0; i
< n_mdswitches
; i
++)
7410 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7416 /* Work out the subdirectory to use based on the options. The format of
7417 multilib_select is a list of elements. Each element is a subdirectory
7418 name followed by a list of options followed by a semicolon. The format
7419 of multilib_exclusions is the same, but without the preceding
7420 directory. First gcc will check the exclusions, if none of the options
7421 beginning with an exclamation point are present, and all of the other
7422 options are present, then we will ignore this completely. Passing
7423 that, gcc will consider each multilib_select in turn using the same
7424 rules for matching the options. If a match is found, that subdirectory
7426 A subdirectory name is optionally followed by a colon and the corresponding
7430 set_multilib_dir (void)
7433 unsigned int this_path_len
;
7434 const char *this_path
, *this_arg
;
7435 const char *start
, *end
;
7437 int ok
, ndfltok
, first
;
7440 start
= multilib_defaults
;
7441 while (*start
== ' ' || *start
== '\t')
7443 while (*start
!= '\0')
7446 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7448 while (*start
== ' ' || *start
== '\t')
7456 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
7457 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7459 while (*start
== ' ' || *start
== '\t')
7465 for (end
= start
+ 1;
7466 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7469 obstack_grow (&multilib_obstack
, start
, end
- start
);
7470 obstack_1grow (&multilib_obstack
, 0);
7471 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
7472 mdswitches
[i
++].len
= end
- start
;
7479 p
= multilib_exclusions
;
7482 /* Ignore newlines. */
7489 /* Check the arguments. */
7496 fatal_error ("multilib exclusions %qs is invalid",
7497 multilib_exclusions
);
7507 while (*p
!= ' ' && *p
!= ';')
7510 goto invalid_exclusions
;
7514 if (*this_arg
!= '!')
7522 ok
= used_arg (this_arg
, p
- this_arg
);
7537 p
= multilib_select
;
7540 /* Ignore newlines. */
7547 /* Get the initial path. */
7554 fatal_error ("multilib select %qs is invalid",
7559 this_path_len
= p
- this_path
;
7561 /* Check the arguments. */
7568 goto invalid_select
;
7577 while (*p
!= ' ' && *p
!= ';')
7580 goto invalid_select
;
7584 if (*this_arg
!= '!')
7592 /* If this is a default argument, we can just ignore it.
7593 This is true even if this_arg begins with '!'. Beginning
7594 with '!' does not mean that this argument is necessarily
7595 inappropriate for this library: it merely means that
7596 there is a more specific library which uses this
7597 argument. If this argument is a default, we need not
7598 consider that more specific library. */
7599 ok
= used_arg (this_arg
, p
- this_arg
);
7606 if (default_arg (this_arg
, p
- this_arg
))
7615 if (this_path_len
!= 1
7616 || this_path
[0] != '.')
7618 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
7621 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7622 new_multilib_dir
[this_path_len
] = '\0';
7623 q
= strchr (new_multilib_dir
, ':');
7626 multilib_dir
= new_multilib_dir
;
7633 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7635 while (q
< end
&& *q
!= ':')
7639 const char *q2
= q
+ 1, *ml_end
= end
;
7640 char *new_multilib_os_dir
;
7642 while (q2
< end
&& *q2
!= ':')
7646 new_multilib_os_dir
= XNEWVEC (char, ml_end
- q
);
7647 memcpy (new_multilib_os_dir
, q
+ 1, ml_end
- q
- 1);
7648 new_multilib_os_dir
[ml_end
- q
- 1] = '\0';
7649 multilib_os_dir
= *new_multilib_os_dir
? new_multilib_os_dir
: ".";
7651 if (q2
< end
&& *q2
== ':')
7653 char *new_multiarch_dir
= XNEWVEC (char, end
- q2
);
7654 memcpy (new_multiarch_dir
, q2
+ 1, end
- q2
- 1);
7655 new_multiarch_dir
[end
- q2
- 1] = '\0';
7656 multiarch_dir
= new_multiarch_dir
;
7665 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7666 && strcmp (multilib_os_dir
, ".") == 0)
7668 free (CONST_CAST (char *, multilib_os_dir
));
7669 multilib_os_dir
= NULL
;
7671 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7672 multilib_os_dir
= multilib_dir
;
7675 /* Print out the multiple library subdirectory selection
7676 information. This prints out a series of lines. Each line looks
7677 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7678 required. Only the desired options are printed out, the negative
7679 matches. The options are print without a leading dash. There are
7680 no spaces to make it easy to use the information in the shell.
7681 Each subdirectory is printed only once. This assumes the ordering
7682 generated by the genmultilib script. Also, we leave out ones that match
7686 print_multilib_info (void)
7688 const char *p
= multilib_select
;
7689 const char *last_path
= 0, *this_path
;
7691 unsigned int last_path_len
= 0;
7696 /* Ignore newlines. */
7703 /* Get the initial path. */
7710 fatal_error ("multilib select %qs is invalid", multilib_select
);
7716 /* When --disable-multilib was used but target defines
7717 MULTILIB_OSDIRNAMES, entries starting with .: (and not starting
7718 with .:: for multiarch configurations) are there just to find
7719 multilib_os_dir, so skip them from output. */
7720 if (this_path
[0] == '.' && this_path
[1] == ':' && this_path
[2] != ':')
7723 /* Check for matches with the multilib_exclusions. We don't bother
7724 with the '!' in either list. If any of the exclusion rules match
7725 all of its options with the select rule, we skip it. */
7727 const char *e
= multilib_exclusions
;
7728 const char *this_arg
;
7733 /* Ignore newlines. */
7740 /* Check the arguments. */
7749 fatal_error ("multilib exclusion %qs is invalid",
7750 multilib_exclusions
);
7761 while (*e
!= ' ' && *e
!= ';')
7764 goto invalid_exclusion
;
7772 int len
= e
- this_arg
;
7775 goto invalid_select
;
7779 while (*q
!= ' ' && *q
!= ';')
7782 goto invalid_select
;
7786 if (! strncmp (arg
, this_arg
,
7787 (len
< q
- arg
) ? q
- arg
: len
)
7788 || default_arg (this_arg
, e
- this_arg
))
7818 /* If this is a duplicate, skip it. */
7819 skip
= (last_path
!= 0
7820 && (unsigned int) (p
- this_path
) == last_path_len
7821 && ! filename_ncmp (last_path
, this_path
, last_path_len
));
7823 last_path
= this_path
;
7824 last_path_len
= p
- this_path
;
7827 /* If this directory requires any default arguments, we can skip
7828 it. We will already have printed a directory identical to
7829 this one which does not require that default argument. */
7840 goto invalid_select
;
7847 while (*q
!= ' ' && *q
!= ';')
7850 goto invalid_select
;
7855 && default_arg (arg
, q
- arg
))
7870 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7881 goto invalid_select
;
7889 use_arg
= *p
!= '!';
7894 while (*p
!= ' ' && *p
!= ';')
7897 goto invalid_select
;
7909 /* If there are extra options, print them now. */
7910 if (multilib_extra
&& *multilib_extra
)
7912 int print_at
= TRUE
;
7915 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7936 /* getenv built-in spec function.
7938 Returns the value of the environment variable given by its first
7939 argument, concatenated with the second argument. If the
7940 environment variable is not defined, a fatal error is issued. */
7943 getenv_spec_function (int argc
, const char **argv
)
7953 value
= getenv (argv
[0]);
7955 fatal_error ("environment variable %qs not defined", argv
[0]);
7957 /* We have to escape every character of the environment variable so
7958 they are not interpreted as active spec characters. A
7959 particularly painful case is when we are reading a variable
7960 holding a windows path complete with \ separators. */
7961 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
7962 result
= XNEWVAR (char, len
);
7963 for (ptr
= result
; *value
; ptr
+= 2)
7969 strcpy (ptr
, argv
[1]);
7974 /* if-exists built-in spec function.
7976 Checks to see if the file specified by the absolute pathname in
7977 ARGS exists. Returns that pathname if found.
7979 The usual use for this function is to check for a library file
7980 (whose name has been expanded with %s). */
7983 if_exists_spec_function (int argc
, const char **argv
)
7985 /* Must have only one argument. */
7986 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7992 /* if-exists-else built-in spec function.
7994 This is like if-exists, but takes an additional argument which
7995 is returned if the first argument does not exist. */
7998 if_exists_else_spec_function (int argc
, const char **argv
)
8000 /* Must have exactly two arguments. */
8004 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8010 /* replace-outfile built-in spec function.
8012 This looks for the first argument in the outfiles array's name and
8013 replaces it with the second argument. */
8016 replace_outfile_spec_function (int argc
, const char **argv
)
8019 /* Must have exactly two arguments. */
8023 for (i
= 0; i
< n_infiles
; i
++)
8025 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
8026 outfiles
[i
] = xstrdup (argv
[1]);
8031 /* remove-outfile built-in spec function.
8033 * This looks for the first argument in the outfiles array's name and
8037 remove_outfile_spec_function (int argc
, const char **argv
)
8040 /* Must have exactly one argument. */
8044 for (i
= 0; i
< n_infiles
; i
++)
8046 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
8052 /* Given two version numbers, compares the two numbers.
8053 A version number must match the regular expression
8054 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
8057 compare_version_strings (const char *v1
, const char *v2
)
8062 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
8063 REG_EXTENDED
| REG_NOSUB
) != 0)
8065 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
8066 if (rresult
== REG_NOMATCH
)
8067 fatal_error ("invalid version number %qs", v1
);
8068 else if (rresult
!= 0)
8070 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
8071 if (rresult
== REG_NOMATCH
)
8072 fatal_error ("invalid version number %qs", v2
);
8073 else if (rresult
!= 0)
8076 return strverscmp (v1
, v2
);
8080 /* version_compare built-in spec function.
8082 This takes an argument of the following form:
8084 <comparison-op> <arg1> [<arg2>] <switch> <result>
8086 and produces "result" if the comparison evaluates to true,
8087 and nothing if it doesn't.
8089 The supported <comparison-op> values are:
8091 >= true if switch is a later (or same) version than arg1
8093 < true if switch is an earlier version than arg1
8095 >< true if switch is arg1 or later, and earlier than arg2
8096 <> true if switch is earlier than arg1 or is arg2 or later
8098 If the switch is not present, the condition is false unless
8099 the first character of the <comparison-op> is '!'.
8102 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
8103 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
8106 version_compare_spec_function (int argc
, const char **argv
)
8110 const char *switch_value
= NULL
;
8115 fatal_error ("too few arguments to %%:version-compare");
8116 if (argv
[0][0] == '\0')
8118 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
8120 if (argc
!= nargs
+ 3)
8121 fatal_error ("too many arguments to %%:version-compare");
8123 switch_len
= strlen (argv
[nargs
+ 1]);
8124 for (i
= 0; i
< n_switches
; i
++)
8125 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
8126 && check_live_switch (i
, switch_len
))
8127 switch_value
= switches
[i
].part1
+ switch_len
;
8129 if (switch_value
== NULL
)
8133 comp1
= compare_version_strings (switch_value
, argv
[1]);
8135 comp2
= compare_version_strings (switch_value
, argv
[2]);
8137 comp2
= -1; /* This value unused. */
8140 switch (argv
[0][0] << 8 | argv
[0][1])
8142 case '>' << 8 | '=':
8143 result
= comp1
>= 0;
8145 case '!' << 8 | '<':
8146 result
= comp1
>= 0 || switch_value
== NULL
;
8151 case '!' << 8 | '>':
8152 result
= comp1
< 0 || switch_value
== NULL
;
8154 case '>' << 8 | '<':
8155 result
= comp1
>= 0 && comp2
< 0;
8157 case '<' << 8 | '>':
8158 result
= comp1
< 0 || comp2
>= 0;
8162 fatal_error ("unknown operator %qs in %%:version-compare", argv
[0]);
8167 return argv
[nargs
+ 2];
8170 /* %:include builtin spec function. This differs from %include in that it
8171 can be nested inside a spec, and thus be conditionalized. It takes
8172 one argument, the filename, and looks for it in the startfile path.
8173 The result is always NULL, i.e. an empty expansion. */
8176 include_spec_function (int argc
, const char **argv
)
8183 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
8184 read_specs (file
? file
: argv
[0], false, false);
8189 /* %:find-file spec function. This function replaces its argument by
8190 the file found through find_file, that is the -print-file-name gcc
8193 find_file_spec_function (int argc
, const char **argv
)
8200 file
= find_file (argv
[0]);
8205 /* %:find-plugindir spec function. This function replaces its argument
8206 by the -iplugindir=<dir> option. `dir' is found through find_file, that
8207 is the -print-file-name gcc program option. */
8209 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
8216 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
8221 /* %:print-asm-header spec function. Print a banner to say that the
8222 following output is from the assembler. */
8225 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
8226 const char **argv ATTRIBUTE_UNUSED
)
8228 printf (_("Assembler options\n=================\n\n"));
8229 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
8234 /* Get a random number for -frandom-seed */
8236 static unsigned HOST_WIDE_INT
8237 get_random_number (void)
8239 unsigned HOST_WIDE_INT ret
= 0;
8242 fd
= open ("/dev/urandom", O_RDONLY
);
8245 read (fd
, &ret
, sizeof (HOST_WIDE_INT
));
8251 /* Get some more or less random data. */
8252 #ifdef HAVE_GETTIMEOFDAY
8256 gettimeofday (&tv
, NULL
);
8257 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
8261 time_t now
= time (NULL
);
8263 if (now
!= (time_t)-1)
8264 ret
= (unsigned) now
;
8268 return ret
^ getpid();
8271 /* %:compare-debug-dump-opt spec function. Save the last argument,
8272 expected to be the last -fdump-final-insns option, or generate a
8276 compare_debug_dump_opt_spec_function (int arg
,
8277 const char **argv ATTRIBUTE_UNUSED
)
8282 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
8285 fatal_error ("too many arguments to %%:compare-debug-dump-opt");
8287 do_spec_2 ("%{fdump-final-insns=*:%*}");
8288 do_spec_1 (" ", 0, NULL
);
8290 if (argbuf
.length () > 0
8291 && strcmp (argv
[argbuf
.length () - 1], "."))
8296 name
= xstrdup (argv
[argbuf
.length () - 1]);
8301 const char *ext
= NULL
;
8303 if (argbuf
.length () > 0)
8305 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
8308 else if (!compare_debug
)
8311 do_spec_2 ("%g.gkd");
8313 do_spec_1 (" ", 0, NULL
);
8315 gcc_assert (argbuf
.length () > 0);
8317 name
= concat (argbuf
.last (), ext
, NULL
);
8319 ret
= concat ("-fdump-final-insns=", name
, NULL
);
8322 which
= compare_debug
< 0;
8323 debug_check_temp_file
[which
] = name
;
8327 unsigned HOST_WIDE_INT value
= get_random_number ();
8329 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
8335 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
8346 static const char *debug_auxbase_opt
;
8348 /* %:compare-debug-self-opt spec function. Expands to the options
8349 that are to be passed in the second compilation of
8353 compare_debug_self_opt_spec_function (int arg
,
8354 const char **argv ATTRIBUTE_UNUSED
)
8357 fatal_error ("too many arguments to %%:compare-debug-self-opt");
8359 if (compare_debug
>= 0)
8362 do_spec_2 ("%{c|S:%{o*:%*}}");
8363 do_spec_1 (" ", 0, NULL
);
8365 if (argbuf
.length () > 0)
8366 debug_auxbase_opt
= concat ("-auxbase-strip ",
8370 debug_auxbase_opt
= NULL
;
8373 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
8374 %<fdump-final-insns=* -w -S -o %j \
8375 %{!fcompare-debug-second:-fcompare-debug-second} \
8376 ", compare_debug_opt
, NULL
);
8379 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
8380 options that are to be passed in the second compilation of
8381 compare-debug. It expects, as an argument, the basename of the
8382 current input file name, with the .gk suffix appended to it. */
8385 compare_debug_auxbase_opt_spec_function (int arg
,
8392 fatal_error ("too few arguments to %%:compare-debug-auxbase-opt");
8395 fatal_error ("too many arguments to %%:compare-debug-auxbase-opt");
8397 if (compare_debug
>= 0)
8400 len
= strlen (argv
[0]);
8401 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
8402 fatal_error ("argument to %%:compare-debug-auxbase-opt "
8403 "does not end in .gk");
8405 if (debug_auxbase_opt
)
8406 return debug_auxbase_opt
;
8408 #define OPT "-auxbase "
8411 name
= (char*) xmalloc (sizeof (OPT
) + len
);
8412 memcpy (name
, OPT
, sizeof (OPT
) - 1);
8413 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
8414 name
[sizeof (OPT
) - 1 + len
] = '\0';
8421 /* %:pass-through-libs spec function. Finds all -l options and input
8422 file names in the lib spec passed to it, and makes a list of them
8423 prepended with the plugin option to cause them to be passed through
8424 to the final link after all the new object files have been added. */
8427 pass_through_libs_spec_func (int argc
, const char **argv
)
8429 char *prepended
= xstrdup (" ");
8431 /* Shlemiel the painter's algorithm. Innately horrible, but at least
8432 we know that there will never be more than a handful of strings to
8433 concat, and it's only once per run, so it's not worth optimising. */
8434 for (n
= 0; n
< argc
; n
++)
8436 char *old
= prepended
;
8437 /* Anything that isn't an option is a full path to an output
8438 file; pass it through if it ends in '.a'. Among options,
8440 if (argv
[n
][0] == '-' && argv
[n
][1] == 'l')
8442 const char *lopt
= argv
[n
] + 2;
8443 /* Handle both joined and non-joined -l options. If for any
8444 reason there's a trailing -l with no joined or following
8445 arg just discard it. */
8446 if (!*lopt
&& ++n
>= argc
)
8450 prepended
= concat (prepended
, "-plugin-opt=-pass-through=-l",
8453 else if (!strcmp (".a", argv
[n
] + strlen (argv
[n
]) - 2))
8455 prepended
= concat (prepended
, "-plugin-opt=-pass-through=",
8456 argv
[n
], " ", NULL
);
8458 if (prepended
!= old
)
8464 /* %:replace-extension spec function. Replaces the extension of the
8465 first argument with the second argument. */
8468 replace_extension_spec_func (int argc
, const char **argv
)
8476 fatal_error ("too few arguments to %%:replace-extension");
8478 name
= xstrdup (argv
[0]);
8480 for (i
= strlen(name
) - 1; i
>= 0; i
--)
8481 if (IS_DIR_SEPARATOR (name
[i
]))
8484 p
= strrchr (name
+ i
+ 1, '.');
8488 result
= concat (name
, argv
[1], NULL
);