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 STATIC_LIBASAN_LIBS
549 #define ADD_STATIC_LIBASAN_LIBS \
550 " %{static-libasan:" STATIC_LIBASAN_LIBS "}"
552 #define ADD_STATIC_LIBASAN_LIBS
554 #ifdef HAVE_LD_STATIC_DYNAMIC
555 #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \
556 "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \
557 ADD_STATIC_LIBASAN_LIBS
559 #define LIBASAN_SPEC "-lasan" ADD_STATIC_LIBASAN_LIBS
564 #ifdef HAVE_LD_STATIC_DYNAMIC
565 #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \
566 "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}"
568 #define LIBTSAN_SPEC "-ltsan"
572 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
575 #if defined(REAL_LIBGCC_SPEC)
576 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
577 #elif defined(LINK_LIBGCC_SPECIAL_1)
578 /* Have gcc do the search for libgcc.a. */
579 #define LIBGCC_SPEC "libgcc.a%s"
581 #define LIBGCC_SPEC "-lgcc"
585 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
586 #ifndef STARTFILE_SPEC
587 #define STARTFILE_SPEC \
588 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
591 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
593 #define ENDFILE_SPEC ""
597 #define LINKER_NAME "collect2"
600 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
601 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
606 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
608 #ifndef ASM_DEBUG_SPEC
609 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
610 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
611 # define ASM_DEBUG_SPEC \
612 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
613 ? "%{!g0:%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}}" ASM_MAP \
614 : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
616 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
617 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP
619 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
620 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP
624 #ifndef ASM_DEBUG_SPEC
625 # define ASM_DEBUG_SPEC ""
628 /* Here is the spec for running the linker, after compiling all files. */
630 /* This is overridable by the target in case they need to specify the
631 -lgcc and -lc order specially, yet not require them to override all
632 of LINK_COMMAND_SPEC. */
633 #ifndef LINK_GCC_C_SEQUENCE_SPEC
634 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
637 #ifndef LINK_SSP_SPEC
638 #ifdef TARGET_LIBC_PROVIDES_SSP
639 #define LINK_SSP_SPEC "%{fstack-protector:}"
641 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
645 #ifndef LINK_PIE_SPEC
647 #define LINK_PIE_SPEC "%{pie:-pie} "
649 #define LINK_PIE_SPEC "%{pie:} "
653 #ifndef LINK_BUILDID_SPEC
654 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
655 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
659 /* Conditional to test whether the LTO plugin is used or not.
660 FIXME: For slim LTO we will need to enable plugin unconditionally. This
661 still cause problems with PLUGIN_LD != LD and when plugin is built but
662 not useable. For GCC 4.6 we don't support slim LTO and thus we can enable
663 plugin only when LTO is enabled. We still honor explicit
664 -fuse-linker-plugin if the linker used understands -plugin. */
666 /* The linker has some plugin support. */
667 #if HAVE_LTO_PLUGIN > 0
668 /* The linker used has full plugin support, use LTO plugin by default. */
669 #if HAVE_LTO_PLUGIN == 2
670 #define PLUGIN_COND "!fno-use-linker-plugin:%{flto|flto=*|fuse-linker-plugin"
671 #define PLUGIN_COND_CLOSE "}"
673 /* The linker used has limited plugin support, use LTO plugin with explicit
674 -fuse-linker-plugin. */
675 #define PLUGIN_COND "fuse-linker-plugin"
676 #define PLUGIN_COND_CLOSE ""
678 #define LINK_PLUGIN_SPEC \
680 -plugin %(linker_plugin_file) \
681 -plugin-opt=%(lto_wrapper) \
682 -plugin-opt=-fresolution=%u.res \
683 %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \
686 /* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */
687 #define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\
688 %e-fuse-linker-plugin is not supported in this configuration}"
692 /* -u* was put back because both BSD and SysV seem to support it. */
693 /* %{static:} simply prevents an error message if the target machine
694 doesn't handle -static. */
695 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
696 scripts which exist in user specified directories, or in standard
698 /* We pass any -flto flags on to the linker, which is expected
699 to understand them. In practice, this means it had better be collect2. */
700 /* %{e*} includes -export-dynamic; see comment in common.opt. */
701 #ifndef LINK_COMMAND_SPEC
702 #define LINK_COMMAND_SPEC "\
703 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
706 "%{flto|flto=*:%<fcompare-debug*} \
707 %{flto} %{flto=*} %l " LINK_PIE_SPEC \
708 "%{fuse-ld=*:-fuse-ld=%*}\
709 %X %{o*} %{e*} %{N} %{n} %{r}\
710 %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}}\
711 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
712 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}\
713 %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
714 %(mflib) " STACK_SPLIT_SPEC "\
715 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\
716 %{fsanitize=address:" LIBASAN_SPEC "%{static:%ecannot specify -static with -fsanitize=address}}\
717 %{fsanitize=thread:" LIBTSAN_SPEC "}\
718 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
719 %{!nostdlib:%{!nostartfiles:%E}} %{T*} }}}}}}"
722 #ifndef LINK_LIBGCC_SPEC
723 /* Generate -L options for startfile prefix list. */
724 # define LINK_LIBGCC_SPEC "%D"
727 #ifndef STARTFILE_PREFIX_SPEC
728 # define STARTFILE_PREFIX_SPEC ""
732 # define SYSROOT_SPEC "--sysroot=%R"
735 #ifndef SYSROOT_SUFFIX_SPEC
736 # define SYSROOT_SUFFIX_SPEC ""
739 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
740 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
743 static const char *asm_debug
= ASM_DEBUG_SPEC
;
744 static const char *cpp_spec
= CPP_SPEC
;
745 static const char *cc1_spec
= CC1_SPEC
;
746 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
747 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
748 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
749 static const char *asm_spec
= ASM_SPEC
;
750 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
751 static const char *link_spec
= LINK_SPEC
;
752 static const char *lib_spec
= LIB_SPEC
;
753 static const char *mfwrap_spec
= MFWRAP_SPEC
;
754 static const char *mflib_spec
= MFLIB_SPEC
;
755 static const char *link_gomp_spec
= "";
756 static const char *libgcc_spec
= LIBGCC_SPEC
;
757 static const char *endfile_spec
= ENDFILE_SPEC
;
758 static const char *startfile_spec
= STARTFILE_SPEC
;
759 static const char *linker_name_spec
= LINKER_NAME
;
760 static const char *linker_plugin_file_spec
= "";
761 static const char *lto_wrapper_spec
= "";
762 static const char *lto_gcc_spec
= "";
763 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
764 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
765 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
766 static const char *sysroot_spec
= SYSROOT_SPEC
;
767 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
768 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
769 static const char *self_spec
= "";
771 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
772 There should be no need to override these in target dependent files,
773 but we need to copy them to the specs file so that newer versions
774 of the GCC driver can correctly drive older tool chains with the
775 appropriate -B options. */
777 /* When cpplib handles traditional preprocessing, get rid of this, and
778 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
779 that we default the front end language better. */
780 static const char *trad_capable_cpp
=
781 "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}";
783 /* We don't wrap .d files in %W{} since a missing .d file, and
784 therefore no dependency entry, confuses make into thinking a .o
785 file that happens to exist is up-to-date. */
786 static const char *cpp_unique_options
=
787 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
788 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
789 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
790 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
791 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
792 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
793 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
794 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
795 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
796 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
799 /* This contains cpp options which are common with cc1_options and are passed
800 only when preprocessing only to avoid duplication. We pass the cc1 spec
801 options to the preprocessor so that it the cc1 spec may manipulate
802 options used to set target flags. Those special target flags settings may
803 in turn cause preprocessor symbols to be defined specially. */
804 static const char *cpp_options
=
805 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
806 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
807 %{undef} %{save-temps*:-fpch-preprocess}";
809 /* This contains cpp options which are not passed when the preprocessor
810 output will be used by another program. */
811 static const char *cpp_debug_options
= "%{d*}";
813 /* NB: This is shared amongst all front-ends, except for Ada. */
814 static const char *cc1_options
=
815 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
816 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
817 %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\
818 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
819 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
820 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
821 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
822 %{Qn:-fno-ident} %{Qy:} %{-help:--help}\
823 %{-target-help:--target-help}\
824 %{-version:--version}\
825 %{-help=*:--help=%*}\
826 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
827 %{fsyntax-only:-o %j} %{-param*}\
828 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
829 %{coverage:-fprofile-arcs -ftest-coverage}";
831 static const char *asm_options
=
832 "%{-target-help:%:print-asm-header()} "
834 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
835 to the assembler equivalents. */
836 "%{v} %{w:-W} %{I*} "
838 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
840 static const char *invoke_as
=
841 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
843 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
844 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
848 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
849 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
853 /* Some compilers have limits on line lengths, and the multilib_select
854 and/or multilib_matches strings can be very long, so we build them at
856 static struct obstack multilib_obstack
;
857 static const char *multilib_select
;
858 static const char *multilib_matches
;
859 static const char *multilib_defaults
;
860 static const char *multilib_exclusions
;
862 /* Check whether a particular argument is a default argument. */
864 #ifndef MULTILIB_DEFAULTS
865 #define MULTILIB_DEFAULTS { "" }
868 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
870 #ifndef DRIVER_SELF_SPECS
871 #define DRIVER_SELF_SPECS ""
874 /* Adding -fopenmp should imply pthreads. This is particularly important
875 for targets that use different start files and suchlike. */
876 #ifndef GOMP_SELF_SPECS
877 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
880 /* Likewise for -fgnu-tm. */
881 #ifndef GTM_SELF_SPECS
882 #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}"
885 static const char *const driver_self_specs
[] = {
886 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
887 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
, GTM_SELF_SPECS
890 #ifndef OPTION_DEFAULT_SPECS
891 #define OPTION_DEFAULT_SPECS { "", "" }
900 static const struct default_spec
901 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
905 struct user_specs
*next
;
906 const char *filename
;
909 static struct user_specs
*user_specs_head
, *user_specs_tail
;
912 /* Record the mapping from file suffixes for compilation specs. */
916 const char *suffix
; /* Use this compiler for input files
917 whose names end in this suffix. */
919 const char *spec
; /* To use this compiler, run this spec. */
921 const char *cpp_spec
; /* If non-NULL, substitute this spec
922 for `%C', rather than the usual
924 const int combinable
; /* If nonzero, compiler can deal with
925 multiple source files at once (IMA). */
926 const int needs_preprocessing
; /* If nonzero, source files need to
927 be run through a preprocessor. */
930 /* Pointer to a vector of `struct compiler' that gives the spec for
931 compiling a file, based on its suffix.
932 A file that does not end in any of these suffixes will be passed
933 unchanged to the loader and nothing else will be done to it.
935 An entry containing two 0s is used to terminate the vector.
937 If multiple entries match a file, the last matching one is used. */
939 static struct compiler
*compilers
;
941 /* Number of entries in `compilers', not counting the null terminator. */
943 static int n_compilers
;
945 /* The default list of file name suffixes and their compilation specs. */
947 static const struct compiler default_compilers
[] =
949 /* Add lists of suffixes of known languages here. If those languages
950 were not present when we built the driver, we will hit these copies
951 and be given a more meaningful error than "file not used since
952 linking is not done". */
953 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
954 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
955 {".mii", "#Objective-C++", 0, 0, 0},
956 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
957 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
958 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
959 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
960 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
961 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
962 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
963 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
964 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
965 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
966 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
967 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
968 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
969 {".r", "#Ratfor", 0, 0, 0},
970 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
971 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
972 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
973 {".go", "#Go", 0, 1, 0},
974 /* Next come the entries for C. */
975 {".c", "@c", 0, 0, 1},
977 /* cc1 has an integrated ISO C preprocessor. We should invoke the
978 external preprocessor if -save-temps is given. */
979 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
982 %eGNU C no longer supports -traditional without -E}\
983 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
984 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
985 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
987 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
988 cc1 %(cpp_unique_options) %(cc1_options)}}}\
989 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
991 "%{!E:%e-E or -x required when input is from standard input}\
992 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
993 {".h", "@c-header", 0, 0, 0},
995 /* cc1 has an integrated ISO C preprocessor. We should invoke the
996 external preprocessor if -save-temps is given. */
997 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
999 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1000 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1001 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1003 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
1004 %W{o*:--output-pch=%*}}%V}\
1005 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1006 cc1 %(cpp_unique_options) %(cc1_options)\
1007 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
1008 %W{o*:--output-pch=%*}}%V}}}}}}", 0, 0, 0},
1009 {".i", "@cpp-output", 0, 0, 0},
1011 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
1012 {".s", "@assembler", 0, 0, 0},
1014 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
1015 {".sx", "@assembler-with-cpp", 0, 0, 0},
1016 {".S", "@assembler-with-cpp", 0, 0, 0},
1017 {"@assembler-with-cpp",
1018 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1019 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1020 %{E|M|MM:%(cpp_debug_options)}\
1021 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1022 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1024 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1025 %{E|M|MM:%(cpp_debug_options)}\
1026 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1027 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1032 /* Mark end of table. */
1036 /* Number of elements in default_compilers, not counting the terminator. */
1038 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1040 typedef char *char_p
; /* For DEF_VEC_P. */
1042 /* A vector of options to give to the linker.
1043 These options are accumulated by %x,
1044 and substituted into the linker command with %X. */
1045 static vec
<char_p
> linker_options
;
1047 /* A vector of options to give to the assembler.
1048 These options are accumulated by -Wa,
1049 and substituted into the assembler command with %Y. */
1050 static vec
<char_p
> assembler_options
;
1052 /* A vector of options to give to the preprocessor.
1053 These options are accumulated by -Wp,
1054 and substituted into the preprocessor command with %Z. */
1055 static vec
<char_p
> preprocessor_options
;
1058 skip_whitespace (char *p
)
1062 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1063 be considered whitespace. */
1064 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1066 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1080 /* Structures to keep track of prefixes to try when looking for files. */
1084 const char *prefix
; /* String to prepend to the path. */
1085 struct prefix_list
*next
; /* Next in linked list. */
1086 int require_machine_suffix
; /* Don't use without machine_suffix. */
1087 /* 2 means try both machine_suffix and just_machine_suffix. */
1088 int priority
; /* Sort key - priority within list. */
1089 int os_multilib
; /* 1 if OS multilib scheme should be used,
1090 0 for GCC multilib scheme. */
1095 struct prefix_list
*plist
; /* List of prefixes to try */
1096 int max_len
; /* Max length of a prefix in PLIST */
1097 const char *name
; /* Name of this list (used in config stuff) */
1100 /* List of prefixes to try when looking for executables. */
1102 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1104 /* List of prefixes to try when looking for startup (crt0) files. */
1106 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1108 /* List of prefixes to try when looking for include files. */
1110 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1112 /* Suffix to attach to directories searched for commands.
1113 This looks like `MACHINE/VERSION/'. */
1115 static const char *machine_suffix
= 0;
1117 /* Suffix to attach to directories searched for commands.
1118 This is just `MACHINE/'. */
1120 static const char *just_machine_suffix
= 0;
1122 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1124 static const char *gcc_exec_prefix
;
1126 /* Adjusted value of standard_libexec_prefix. */
1128 static const char *gcc_libexec_prefix
;
1130 /* Default prefixes to attach to command names. */
1132 #ifndef STANDARD_STARTFILE_PREFIX_1
1133 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1135 #ifndef STANDARD_STARTFILE_PREFIX_2
1136 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1139 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1140 #undef MD_EXEC_PREFIX
1141 #undef MD_STARTFILE_PREFIX
1142 #undef MD_STARTFILE_PREFIX_1
1145 /* If no prefixes defined, use the null string, which will disable them. */
1146 #ifndef MD_EXEC_PREFIX
1147 #define MD_EXEC_PREFIX ""
1149 #ifndef MD_STARTFILE_PREFIX
1150 #define MD_STARTFILE_PREFIX ""
1152 #ifndef MD_STARTFILE_PREFIX_1
1153 #define MD_STARTFILE_PREFIX_1 ""
1156 /* These directories are locations set at configure-time based on the
1157 --prefix option provided to configure. Their initializers are
1158 defined in Makefile.in. These paths are not *directly* used when
1159 gcc_exec_prefix is set because, in that case, we know where the
1160 compiler has been installed, and use paths relative to that
1161 location instead. */
1162 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1163 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1164 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1165 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1167 /* For native compilers, these are well-known paths containing
1168 components that may be provided by the system. For cross
1169 compilers, these paths are not used. */
1170 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1171 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1172 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1173 static const char *const standard_startfile_prefix_1
1174 = STANDARD_STARTFILE_PREFIX_1
;
1175 static const char *const standard_startfile_prefix_2
1176 = STANDARD_STARTFILE_PREFIX_2
;
1178 /* A relative path to be used in finding the location of tools
1179 relative to the driver. */
1180 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1182 /* Subdirectory to use for locating libraries. Set by
1183 set_multilib_dir based on the compilation options. */
1185 static const char *multilib_dir
;
1187 /* Subdirectory to use for locating libraries in OS conventions. Set by
1188 set_multilib_dir based on the compilation options. */
1190 static const char *multilib_os_dir
;
1192 /* Subdirectory to use for locating libraries in multiarch conventions. Set by
1193 set_multilib_dir based on the compilation options. */
1195 static const char *multiarch_dir
;
1197 /* Structure to keep track of the specs that have been defined so far.
1198 These are accessed using %(specname) in a compiler or link
1203 /* The following 2 fields must be first */
1204 /* to allow EXTRA_SPECS to be initialized */
1205 const char *name
; /* name of the spec. */
1206 const char *ptr
; /* available ptr if no static pointer */
1208 /* The following fields are not initialized */
1209 /* by EXTRA_SPECS */
1210 const char **ptr_spec
; /* pointer to the spec itself. */
1211 struct spec_list
*next
; /* Next spec in linked list. */
1212 int name_len
; /* length of the name */
1213 bool user_p
; /* whether string come from file spec. */
1214 bool alloc_p
; /* whether string was allocated */
1217 #define INIT_STATIC_SPEC(NAME,PTR) \
1218 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, false, false }
1220 /* List of statically defined specs. */
1221 static struct spec_list static_specs
[] =
1223 INIT_STATIC_SPEC ("asm", &asm_spec
),
1224 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1225 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1226 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1227 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1228 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1229 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1230 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1231 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1232 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1233 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1234 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1235 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1236 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1237 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1238 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1239 INIT_STATIC_SPEC ("link", &link_spec
),
1240 INIT_STATIC_SPEC ("lib", &lib_spec
),
1241 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1242 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1243 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1244 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1245 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1246 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1247 INIT_STATIC_SPEC ("version", &compiler_version
),
1248 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1249 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1250 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1251 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1252 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1253 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1254 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1255 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1256 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1257 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1258 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1259 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1260 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1261 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1262 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1263 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1264 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1265 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1266 INIT_STATIC_SPEC ("self_spec", &self_spec
),
1269 #ifdef EXTRA_SPECS /* additional specs needed */
1270 /* Structure to keep track of just the first two args of a spec_list.
1271 That is all that the EXTRA_SPECS macro gives us. */
1274 const char *const name
;
1275 const char *const ptr
;
1278 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1279 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1282 /* List of dynamically allocates specs that have been defined so far. */
1284 static struct spec_list
*specs
= (struct spec_list
*) 0;
1286 /* List of static spec functions. */
1288 static const struct spec_function static_spec_functions
[] =
1290 { "getenv", getenv_spec_function
},
1291 { "if-exists", if_exists_spec_function
},
1292 { "if-exists-else", if_exists_else_spec_function
},
1293 { "replace-outfile", replace_outfile_spec_function
},
1294 { "remove-outfile", remove_outfile_spec_function
},
1295 { "version-compare", version_compare_spec_function
},
1296 { "include", include_spec_function
},
1297 { "find-file", find_file_spec_function
},
1298 { "find-plugindir", find_plugindir_spec_function
},
1299 { "print-asm-header", print_asm_header_spec_function
},
1300 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1301 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1302 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1303 { "pass-through-libs", pass_through_libs_spec_func
},
1304 { "replace-extension", replace_extension_spec_func
},
1305 #ifdef EXTRA_SPEC_FUNCTIONS
1306 EXTRA_SPEC_FUNCTIONS
1311 static int processing_spec_function
;
1313 /* Add appropriate libgcc specs to OBSTACK, taking into account
1314 various permutations of -shared-libgcc, -shared, and such. */
1316 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1318 #ifndef USE_LD_AS_NEEDED
1319 #define USE_LD_AS_NEEDED 0
1323 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1324 const char *static_name
, const char *eh_name
)
1328 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1329 "%{!static:%{!static-libgcc:"
1330 #if USE_LD_AS_NEEDED
1331 "%{!shared-libgcc:",
1332 static_name
, " --as-needed ", shared_name
, " --no-as-needed"
1335 shared_name
, "%{!shared: ", static_name
, "}"
1339 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1340 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1344 "%{shared-libgcc:", shared_name
, "}"
1345 "%{!shared-libgcc:", static_name
, "}"
1348 "%{shared:", shared_name
, "}"
1353 obstack_grow (obstack
, buf
, strlen (buf
));
1356 #endif /* ENABLE_SHARED_LIBGCC */
1358 /* Initialize the specs lookup routines. */
1363 struct spec_list
*next
= (struct spec_list
*) 0;
1364 struct spec_list
*sl
= (struct spec_list
*) 0;
1368 return; /* Already initialized. */
1371 fnotice (stderr
, "Using built-in specs.\n");
1374 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1376 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1378 sl
= &extra_specs
[i
];
1379 sl
->name
= extra_specs_1
[i
].name
;
1380 sl
->ptr
= extra_specs_1
[i
].ptr
;
1382 sl
->name_len
= strlen (sl
->name
);
1383 sl
->ptr_spec
= &sl
->ptr
;
1388 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1390 sl
= &static_specs
[i
];
1395 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1396 /* ??? If neither -shared-libgcc nor --static-libgcc was
1397 seen, then we should be making an educated guess. Some proposed
1398 heuristics for ELF include:
1400 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1401 program will be doing dynamic loading, which will likely
1402 need the shared libgcc.
1404 (2) If "-ldl", then it's also a fair bet that we're doing
1407 (3) For each ET_DYN we're linking against (either through -lfoo
1408 or /some/path/foo.so), check to see whether it or one of
1409 its dependencies depends on a shared libgcc.
1413 If the runtime is fixed to look for program headers instead
1414 of calling __register_frame_info at all, for each object,
1415 use the shared libgcc if any EH symbol referenced.
1417 If crtstuff is fixed to not invoke __register_frame_info
1418 automatically, for each object, use the shared libgcc if
1419 any non-empty unwind section found.
1421 Doing any of this probably requires invoking an external program to
1422 do the actual object file scanning. */
1424 const char *p
= libgcc_spec
;
1427 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1428 when given the proper command line arguments. */
1431 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1433 init_gcc_specs (&obstack
,
1435 #ifdef USE_LIBUNWIND_EXCEPTIONS
1441 #ifdef USE_LIBUNWIND_EXCEPTIONS
1442 # ifdef HAVE_LD_STATIC_DYNAMIC
1443 " %{!static:" LD_STATIC_OPTION
"} -lunwind"
1444 " %{!static:" LD_DYNAMIC_OPTION
"}"
1454 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1456 /* Ug. We don't know shared library extensions. Hope that
1457 systems that use this form don't do shared libraries. */
1458 init_gcc_specs (&obstack
,
1462 #ifdef USE_LIBUNWIND_EXCEPTIONS
1471 obstack_1grow (&obstack
, *p
);
1472 in_sep
= (*p
== ' ');
1477 obstack_1grow (&obstack
, '\0');
1478 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1481 #ifdef USE_AS_TRADITIONAL_FORMAT
1482 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1484 static const char tf
[] = "--traditional-format ";
1485 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1486 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1487 asm_spec
= XOBFINISH (&obstack
, const char *);
1491 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \
1492 defined LINKER_HASH_STYLE
1493 # ifdef LINK_BUILDID_SPEC
1494 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1495 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof(LINK_BUILDID_SPEC
) - 1);
1497 # ifdef LINK_EH_SPEC
1498 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1499 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1501 # ifdef LINKER_HASH_STYLE
1502 /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had
1505 static const char hash_style
[] = "--hash-style=";
1506 obstack_grow (&obstack
, hash_style
, sizeof(hash_style
) - 1);
1507 obstack_grow (&obstack
, LINKER_HASH_STYLE
, sizeof(LINKER_HASH_STYLE
) - 1);
1508 obstack_1grow (&obstack
, ' ');
1511 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1512 link_spec
= XOBFINISH (&obstack
, const char *);
1518 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1519 removed; If the spec starts with a + then SPEC is added to the end of the
1523 set_spec (const char *name
, const char *spec
, bool user_p
)
1525 struct spec_list
*sl
;
1526 const char *old_spec
;
1527 int name_len
= strlen (name
);
1530 /* If this is the first call, initialize the statically allocated specs. */
1533 struct spec_list
*next
= (struct spec_list
*) 0;
1534 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1536 sl
= &static_specs
[i
];
1543 /* See if the spec already exists. */
1544 for (sl
= specs
; sl
; sl
= sl
->next
)
1545 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1550 /* Not found - make it. */
1551 sl
= XNEW (struct spec_list
);
1552 sl
->name
= xstrdup (name
);
1553 sl
->name_len
= name_len
;
1554 sl
->ptr_spec
= &sl
->ptr
;
1556 *(sl
->ptr_spec
) = "";
1561 old_spec
= *(sl
->ptr_spec
);
1562 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1563 ? concat (old_spec
, spec
+ 1, NULL
)
1568 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1571 /* Free the old spec. */
1572 if (old_spec
&& sl
->alloc_p
)
1573 free (CONST_CAST(char *, old_spec
));
1575 sl
->user_p
= user_p
;
1579 /* Accumulate a command (program name and args), and run it. */
1581 typedef const char *const_char_p
; /* For DEF_VEC_P. */
1583 /* Vector of pointers to arguments in the current line of specifications. */
1585 static vec
<const_char_p
> argbuf
;
1587 /* Position in the argbuf vector containing the name of the output file
1588 (the value associated with the "-o" flag). */
1590 static int have_o_argbuf_index
= 0;
1592 /* Were the options -c, -S or -E passed. */
1593 static int have_c
= 0;
1595 /* Was the option -o passed. */
1596 static int have_o
= 0;
1598 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1599 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1602 static struct temp_name
{
1603 const char *suffix
; /* suffix associated with the code. */
1604 int length
; /* strlen (suffix). */
1605 int unique
; /* Indicates whether %g or %u/%U was used. */
1606 const char *filename
; /* associated filename. */
1607 int filename_length
; /* strlen (filename). */
1608 struct temp_name
*next
;
1611 /* Number of commands executed so far. */
1613 static int execution_count
;
1615 /* Number of commands that exited with a signal. */
1617 static int signal_count
;
1619 /* Allocate the argument vector. */
1627 /* Clear out the vector of arguments (after a command is executed). */
1632 argbuf
.truncate (0);
1635 /* Add one argument to the vector at the end.
1636 This is done when a space is seen or at the end of the line.
1637 If DELETE_ALWAYS is nonzero, the arg is a filename
1638 and the file should be deleted eventually.
1639 If DELETE_FAILURE is nonzero, the arg is a filename
1640 and the file should be deleted if this compilation fails. */
1643 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1645 argbuf
.safe_push (arg
);
1647 if (strcmp (arg
, "-o") == 0)
1648 have_o_argbuf_index
= argbuf
.length ();
1649 if (delete_always
|| delete_failure
)
1652 /* If the temporary file we should delete is specified as
1653 part of a joined argument extract the filename. */
1655 && (p
= strrchr (arg
, '=')))
1657 record_temp_file (arg
, delete_always
, delete_failure
);
1661 /* Load specs from a file name named FILENAME, replacing occurrences of
1662 various different types of line-endings, \r\n, \n\r and just \r, with
1666 load_specs (const char *filename
)
1670 struct stat statbuf
;
1677 fnotice (stderr
, "Reading specs from %s\n", filename
);
1679 /* Open and stat the file. */
1680 desc
= open (filename
, O_RDONLY
, 0);
1682 pfatal_with_name (filename
);
1683 if (stat (filename
, &statbuf
) < 0)
1684 pfatal_with_name (filename
);
1686 /* Read contents of file into BUFFER. */
1687 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
1688 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1690 pfatal_with_name (filename
);
1691 buffer
[readlen
] = 0;
1694 specs
= XNEWVEC (char, readlen
+ 1);
1696 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1702 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1704 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1718 /* Read compilation specs from a file named FILENAME,
1719 replacing the default ones.
1721 A suffix which starts with `*' is a definition for
1722 one of the machine-specific sub-specs. The "suffix" should be
1723 *asm, *cc1, *cpp, *link, *startfile, etc.
1724 The corresponding spec is stored in asm_spec, etc.,
1725 rather than in the `compilers' vector.
1727 Anything invalid in the file is a fatal error. */
1730 read_specs (const char *filename
, bool main_p
, bool user_p
)
1735 buffer
= load_specs (filename
);
1737 /* Scan BUFFER for specs, putting them in the vector. */
1743 char *in
, *out
, *p1
, *p2
, *p3
;
1745 /* Advance P in BUFFER to the next nonblank nocomment line. */
1746 p
= skip_whitespace (p
);
1750 /* Is this a special command that starts with '%'? */
1751 /* Don't allow this for the main specs file, since it would
1752 encourage people to overwrite it. */
1753 if (*p
== '%' && !main_p
)
1756 while (*p
&& *p
!= '\n')
1762 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1763 && (p1
[sizeof "%include" - 1] == ' '
1764 || p1
[sizeof "%include" - 1] == '\t'))
1768 p1
+= sizeof ("%include");
1769 while (*p1
== ' ' || *p1
== '\t')
1772 if (*p1
++ != '<' || p
[-2] != '>')
1773 fatal_error ("specs %%include syntax malformed after "
1775 (long) (p1
- buffer
+ 1));
1778 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1779 read_specs (new_filename
? new_filename
: p1
, false, user_p
);
1782 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1783 && (p1
[sizeof "%include_noerr" - 1] == ' '
1784 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1788 p1
+= sizeof "%include_noerr";
1789 while (*p1
== ' ' || *p1
== '\t')
1792 if (*p1
++ != '<' || p
[-2] != '>')
1793 fatal_error ("specs %%include syntax malformed after "
1795 (long) (p1
- buffer
+ 1));
1798 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1800 read_specs (new_filename
, false, user_p
);
1801 else if (verbose_flag
)
1802 fnotice (stderr
, "could not find specs file %s\n", p1
);
1805 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1806 && (p1
[sizeof "%rename" - 1] == ' '
1807 || p1
[sizeof "%rename" - 1] == '\t'))
1810 struct spec_list
*sl
;
1811 struct spec_list
*newsl
;
1813 /* Get original name. */
1814 p1
+= sizeof "%rename";
1815 while (*p1
== ' ' || *p1
== '\t')
1818 if (! ISALPHA ((unsigned char) *p1
))
1819 fatal_error ("specs %%rename syntax malformed after "
1821 (long) (p1
- buffer
));
1824 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1827 if (*p2
!= ' ' && *p2
!= '\t')
1828 fatal_error ("specs %%rename syntax malformed after "
1830 (long) (p2
- buffer
));
1834 while (*p2
== ' ' || *p2
== '\t')
1837 if (! ISALPHA ((unsigned char) *p2
))
1838 fatal_error ("specs %%rename syntax malformed after "
1840 (long) (p2
- buffer
));
1842 /* Get new spec name. */
1844 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
1848 fatal_error ("specs %%rename syntax malformed after "
1850 (long) (p3
- buffer
));
1853 for (sl
= specs
; sl
; sl
= sl
->next
)
1854 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1858 fatal_error ("specs %s spec was not found to be renamed", p1
);
1860 if (strcmp (p1
, p2
) == 0)
1863 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
1864 if (strcmp (newsl
->name
, p2
) == 0)
1865 fatal_error ("%s: attempt to rename spec %qs to "
1866 "already defined spec %qs",
1871 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
1873 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
1877 set_spec (p2
, *(sl
->ptr_spec
), user_p
);
1879 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
1881 *(sl
->ptr_spec
) = "";
1886 fatal_error ("specs unknown %% command after %ld characters",
1887 (long) (p1
- buffer
));
1890 /* Find the colon that should end the suffix. */
1892 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1895 /* The colon shouldn't be missing. */
1897 fatal_error ("specs file malformed after %ld characters",
1898 (long) (p1
- buffer
));
1900 /* Skip back over trailing whitespace. */
1902 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1905 /* Copy the suffix to a string. */
1906 suffix
= save_string (p
, p2
- p
);
1907 /* Find the next line. */
1908 p
= skip_whitespace (p1
+ 1);
1910 fatal_error ("specs file malformed after %ld characters",
1911 (long) (p
- buffer
));
1914 /* Find next blank line or end of string. */
1915 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1918 /* Specs end at the blank line and do not include the newline. */
1919 spec
= save_string (p
, p1
- p
);
1922 /* Delete backslash-newline sequences from the spec. */
1927 if (in
[0] == '\\' && in
[1] == '\n')
1929 else if (in
[0] == '#')
1930 while (*in
&& *in
!= '\n')
1938 if (suffix
[0] == '*')
1940 if (! strcmp (suffix
, "*link_command"))
1941 link_command_spec
= spec
;
1943 set_spec (suffix
+ 1, spec
, user_p
);
1947 /* Add this pair to the vector. */
1949 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
1951 compilers
[n_compilers
].suffix
= suffix
;
1952 compilers
[n_compilers
].spec
= spec
;
1954 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
1958 link_command_spec
= spec
;
1961 if (link_command_spec
== 0)
1962 fatal_error ("spec file has no spec for linking");
1965 /* Record the names of temporary files we tell compilers to write,
1966 and delete them at the end of the run. */
1968 /* This is the common prefix we use to make temp file names.
1969 It is chosen once for each run of this program.
1970 It is substituted into a spec by %g or %j.
1971 Thus, all temp file names contain this prefix.
1972 In practice, all temp file names start with this prefix.
1974 This prefix comes from the envvar TMPDIR if it is defined;
1975 otherwise, from the P_tmpdir macro if that is defined;
1976 otherwise, in /usr/tmp or /tmp;
1977 or finally the current directory if all else fails. */
1979 static const char *temp_filename
;
1981 /* Length of the prefix. */
1983 static int temp_filename_length
;
1985 /* Define the list of temporary files to delete. */
1990 struct temp_file
*next
;
1993 /* Queue of files to delete on success or failure of compilation. */
1994 static struct temp_file
*always_delete_queue
;
1995 /* Queue of files to delete on failure of compilation. */
1996 static struct temp_file
*failure_delete_queue
;
1998 /* Record FILENAME as a file to be deleted automatically.
1999 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2000 otherwise delete it in any case.
2001 FAIL_DELETE nonzero means delete it if a compilation step fails;
2002 otherwise delete it in any case. */
2005 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2007 char *const name
= xstrdup (filename
);
2011 struct temp_file
*temp
;
2012 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2013 if (! filename_cmp (name
, temp
->name
))
2016 temp
= XNEW (struct temp_file
);
2017 temp
->next
= always_delete_queue
;
2019 always_delete_queue
= temp
;
2026 struct temp_file
*temp
;
2027 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2028 if (! filename_cmp (name
, temp
->name
))
2034 temp
= XNEW (struct temp_file
);
2035 temp
->next
= failure_delete_queue
;
2037 failure_delete_queue
= temp
;
2043 /* Delete all the temporary files whose names we previously recorded. */
2045 #ifndef DELETE_IF_ORDINARY
2046 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2049 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2050 if (unlink (NAME) < 0) \
2052 perror_with_name (NAME); \
2057 delete_if_ordinary (const char *name
)
2063 printf ("Delete %s? (y or n) ", name
);
2067 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2070 if (i
== 'y' || i
== 'Y')
2072 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2076 delete_temp_files (void)
2078 struct temp_file
*temp
;
2080 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2081 delete_if_ordinary (temp
->name
);
2082 always_delete_queue
= 0;
2085 /* Delete all the files to be deleted on error. */
2088 delete_failure_queue (void)
2090 struct temp_file
*temp
;
2092 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2093 delete_if_ordinary (temp
->name
);
2097 clear_failure_queue (void)
2099 failure_delete_queue
= 0;
2102 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2104 If DO_MULTI is true iterate over the paths twice, first with multilib
2105 suffix then without, otherwise iterate over the paths once without
2106 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2107 to avoid visiting the same path twice, but we could do better. For
2108 instance, /usr/lib/../lib is considered different from /usr/lib.
2109 At least EXTRA_SPACE chars past the end of the path passed to
2110 CALLBACK are available for use by the callback.
2111 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2113 Returns the value returned by CALLBACK. */
2116 for_each_path (const struct path_prefix
*paths
,
2119 void *(*callback
) (char *, void *),
2120 void *callback_info
)
2122 struct prefix_list
*pl
;
2123 const char *multi_dir
= NULL
;
2124 const char *multi_os_dir
= NULL
;
2125 const char *multiarch_suffix
= NULL
;
2126 const char *multi_suffix
;
2127 const char *just_multi_suffix
;
2130 bool skip_multi_dir
= false;
2131 bool skip_multi_os_dir
= false;
2133 multi_suffix
= machine_suffix
;
2134 just_multi_suffix
= just_machine_suffix
;
2135 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2137 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2138 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2139 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2141 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2142 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2144 multiarch_suffix
= concat (multiarch_dir
, dir_separator_str
, NULL
);
2148 size_t multi_dir_len
= 0;
2149 size_t multi_os_dir_len
= 0;
2150 size_t multiarch_len
= 0;
2152 size_t just_suffix_len
;
2156 multi_dir_len
= strlen (multi_dir
);
2158 multi_os_dir_len
= strlen (multi_os_dir
);
2159 if (multiarch_suffix
)
2160 multiarch_len
= strlen (multiarch_suffix
);
2161 suffix_len
= strlen (multi_suffix
);
2162 just_suffix_len
= strlen (just_multi_suffix
);
2166 len
= paths
->max_len
+ extra_space
+ 1;
2167 len
+= MAX (MAX (suffix_len
, multi_os_dir_len
), multiarch_len
);
2168 path
= XNEWVEC (char, len
);
2171 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2173 len
= strlen (pl
->prefix
);
2174 memcpy (path
, pl
->prefix
, len
);
2176 /* Look first in MACHINE/VERSION subdirectory. */
2177 if (!skip_multi_dir
)
2179 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2180 ret
= callback (path
, callback_info
);
2185 /* Some paths are tried with just the machine (ie. target)
2186 subdir. This is used for finding as, ld, etc. */
2188 && pl
->require_machine_suffix
== 2)
2190 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2191 ret
= callback (path
, callback_info
);
2196 /* Now try the multiarch path. */
2198 && !pl
->require_machine_suffix
&& multiarch_dir
)
2200 memcpy (path
+ len
, multiarch_suffix
, multiarch_len
+ 1);
2201 ret
= callback (path
, callback_info
);
2206 /* Now try the base path. */
2207 if (!pl
->require_machine_suffix
2208 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2210 const char *this_multi
;
2211 size_t this_multi_len
;
2213 if (pl
->os_multilib
)
2215 this_multi
= multi_os_dir
;
2216 this_multi_len
= multi_os_dir_len
;
2220 this_multi
= multi_dir
;
2221 this_multi_len
= multi_dir_len
;
2225 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2229 ret
= callback (path
, callback_info
);
2237 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2240 /* Run through the paths again, this time without multilibs.
2241 Don't repeat any we have already seen. */
2244 free (CONST_CAST (char *, multi_dir
));
2246 free (CONST_CAST (char *, multi_suffix
));
2247 multi_suffix
= machine_suffix
;
2248 free (CONST_CAST (char *, just_multi_suffix
));
2249 just_multi_suffix
= just_machine_suffix
;
2252 skip_multi_dir
= true;
2255 free (CONST_CAST (char *, multi_os_dir
));
2256 multi_os_dir
= NULL
;
2259 skip_multi_os_dir
= true;
2264 free (CONST_CAST (char *, multi_dir
));
2265 free (CONST_CAST (char *, multi_suffix
));
2266 free (CONST_CAST (char *, just_multi_suffix
));
2269 free (CONST_CAST (char *, multi_os_dir
));
2275 /* Callback for build_search_list. Adds path to obstack being built. */
2277 struct add_to_obstack_info
{
2284 add_to_obstack (char *path
, void *data
)
2286 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2288 if (info
->check_dir
&& !is_directory (path
, false))
2291 if (!info
->first_time
)
2292 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2294 obstack_grow (info
->ob
, path
, strlen (path
));
2296 info
->first_time
= false;
2300 /* Add or change the value of an environment variable, outputting the
2301 change to standard error if in verbose mode. */
2303 xputenv (const char *string
)
2306 fnotice (stderr
, "%s\n", string
);
2307 putenv (CONST_CAST (char *, string
));
2310 /* Build a list of search directories from PATHS.
2311 PREFIX is a string to prepend to the list.
2312 If CHECK_DIR_P is true we ensure the directory exists.
2313 If DO_MULTI is true, multilib paths are output first, then
2315 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2316 It is also used by the --print-search-dirs flag. */
2319 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2320 bool check_dir
, bool do_multi
)
2322 struct add_to_obstack_info info
;
2324 info
.ob
= &collect_obstack
;
2325 info
.check_dir
= check_dir
;
2326 info
.first_time
= true;
2328 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2329 obstack_1grow (&collect_obstack
, '=');
2331 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2333 obstack_1grow (&collect_obstack
, '\0');
2334 return XOBFINISH (&collect_obstack
, char *);
2337 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2341 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2344 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2347 /* Check whether NAME can be accessed in MODE. This is like access,
2348 except that it never considers directories to be executable. */
2351 access_check (const char *name
, int mode
)
2357 if (stat (name
, &st
) < 0
2358 || S_ISDIR (st
.st_mode
))
2362 return access (name
, mode
);
2365 /* Callback for find_a_file. Appends the file name to the directory
2366 path. If the resulting file exists in the right mode, return the
2367 full pathname to the file. */
2369 struct file_at_path_info
{
2378 file_at_path (char *path
, void *data
)
2380 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2381 size_t len
= strlen (path
);
2383 memcpy (path
+ len
, info
->name
, info
->name_len
);
2384 len
+= info
->name_len
;
2386 /* Some systems have a suffix for executable files.
2387 So try appending that first. */
2388 if (info
->suffix_len
)
2390 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2391 if (access_check (path
, info
->mode
) == 0)
2396 if (access_check (path
, info
->mode
) == 0)
2402 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2403 access to check permissions. If DO_MULTI is true, search multilib
2404 paths then non-multilib paths, otherwise do not search multilib paths.
2405 Return 0 if not found, otherwise return its name, allocated with malloc. */
2408 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2411 struct file_at_path_info info
;
2413 #ifdef DEFAULT_ASSEMBLER
2414 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2415 return xstrdup (DEFAULT_ASSEMBLER
);
2418 #ifdef DEFAULT_LINKER
2419 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2420 return xstrdup (DEFAULT_LINKER
);
2423 /* Determine the filename to execute (special case for absolute paths). */
2425 if (IS_ABSOLUTE_PATH (name
))
2427 if (access (name
, mode
) == 0)
2428 return xstrdup (name
);
2434 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2435 info
.name_len
= strlen (info
.name
);
2436 info
.suffix_len
= strlen (info
.suffix
);
2439 return (char*) for_each_path (pprefix
, do_multi
,
2440 info
.name_len
+ info
.suffix_len
,
2441 file_at_path
, &info
);
2444 /* Ranking of prefixes in the sort list. -B prefixes are put before
2447 enum path_prefix_priority
2449 PREFIX_PRIORITY_B_OPT
,
2450 PREFIX_PRIORITY_LAST
2453 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2454 order according to PRIORITY. Within each PRIORITY, new entries are
2457 If WARN is nonzero, we will warn if no file is found
2458 through this prefix. WARN should point to an int
2459 which will be set to 1 if this entry is used.
2461 COMPONENT is the value to be passed to update_path.
2463 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2464 the complete value of machine_suffix.
2465 2 means try both machine_suffix and just_machine_suffix. */
2468 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2469 const char *component
, /* enum prefix_priority */ int priority
,
2470 int require_machine_suffix
, int os_multilib
)
2472 struct prefix_list
*pl
, **prev
;
2475 for (prev
= &pprefix
->plist
;
2476 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2477 prev
= &(*prev
)->next
)
2480 /* Keep track of the longest prefix. */
2482 prefix
= update_path (prefix
, component
);
2483 len
= strlen (prefix
);
2484 if (len
> pprefix
->max_len
)
2485 pprefix
->max_len
= len
;
2487 pl
= XNEW (struct prefix_list
);
2488 pl
->prefix
= prefix
;
2489 pl
->require_machine_suffix
= require_machine_suffix
;
2490 pl
->priority
= priority
;
2491 pl
->os_multilib
= os_multilib
;
2493 /* Insert after PREV. */
2498 /* Same as add_prefix, but prepending target_system_root to prefix. */
2499 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2501 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2502 const char *component
,
2503 /* enum prefix_priority */ int priority
,
2504 int require_machine_suffix
, int os_multilib
)
2506 if (!IS_ABSOLUTE_PATH (prefix
))
2507 fatal_error ("system path %qs is not absolute", prefix
);
2509 if (target_system_root
)
2511 char *sysroot_no_trailing_dir_separator
= xstrdup (target_system_root
);
2512 size_t sysroot_len
= strlen (target_system_root
);
2515 && target_system_root
[sysroot_len
- 1] == DIR_SEPARATOR
)
2516 sysroot_no_trailing_dir_separator
[sysroot_len
- 1] = '\0';
2518 if (target_sysroot_suffix
)
2519 prefix
= concat (sysroot_no_trailing_dir_separator
,
2520 target_sysroot_suffix
, prefix
, NULL
);
2522 prefix
= concat (sysroot_no_trailing_dir_separator
, prefix
, NULL
);
2524 free (sysroot_no_trailing_dir_separator
);
2526 /* We have to override this because GCC's notion of sysroot
2527 moves along with GCC. */
2531 add_prefix (pprefix
, prefix
, component
, priority
,
2532 require_machine_suffix
, os_multilib
);
2535 /* Execute the command specified by the arguments on the current line of spec.
2536 When using pipes, this includes several piped-together commands
2537 with `|' between them.
2539 Return 0 if successful, -1 if failed. */
2545 int n_commands
; /* # of command. */
2547 struct pex_obj
*pex
;
2550 const char *prog
; /* program name. */
2551 const char **argv
; /* vector of args. */
2555 struct command
*commands
; /* each command buffer with above info. */
2557 gcc_assert (!processing_spec_function
);
2561 string
= find_a_file (&exec_prefixes
,
2562 argbuf
[0], X_OK
, false);
2565 insert_wrapper (wrapper_string
);
2568 /* Count # of piped commands. */
2569 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2570 if (strcmp (arg
, "|") == 0)
2573 /* Get storage for each command. */
2574 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2576 /* Split argbuf into its separate piped processes,
2577 and record info about each one.
2578 Also search for the programs that are to be run. */
2580 argbuf
.safe_push (0);
2582 commands
[0].prog
= argbuf
[0]; /* first command. */
2583 commands
[0].argv
= argbuf
.address ();
2585 if (!wrapper_string
)
2587 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2588 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2591 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2592 if (arg
&& strcmp (arg
, "|") == 0)
2593 { /* each command. */
2594 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2595 fatal_error ("-pipe not supported");
2597 argbuf
[i
] = 0; /* Termination of
2599 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2600 commands
[n_commands
].argv
2601 = &(argbuf
.address ())[i
+ 1];
2602 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2605 commands
[n_commands
].argv
[0] = string
;
2609 /* If -v, print what we are about to do, and maybe query. */
2613 /* For help listings, put a blank line between sub-processes. */
2614 if (print_help_list
)
2615 fputc ('\n', stderr
);
2617 /* Print each piped command as a separate line. */
2618 for (i
= 0; i
< n_commands
; i
++)
2620 const char *const *j
;
2622 if (verbose_only_flag
)
2624 for (j
= commands
[i
].argv
; *j
; j
++)
2627 for (p
= *j
; *p
; ++p
)
2628 if (!ISALNUM ((unsigned char) *p
)
2629 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
2633 fprintf (stderr
, " \"");
2634 for (p
= *j
; *p
; ++p
)
2636 if (*p
== '"' || *p
== '\\' || *p
== '$')
2637 fputc ('\\', stderr
);
2640 fputc ('"', stderr
);
2642 /* If it's empty, print "". */
2644 fprintf (stderr
, " \"\"");
2646 fprintf (stderr
, " %s", *j
);
2650 for (j
= commands
[i
].argv
; *j
; j
++)
2651 /* If it's empty, print "". */
2653 fprintf (stderr
, " \"\"");
2655 fprintf (stderr
, " %s", *j
);
2657 /* Print a pipe symbol after all but the last command. */
2658 if (i
+ 1 != n_commands
)
2659 fprintf (stderr
, " |");
2660 fprintf (stderr
, "\n");
2663 if (verbose_only_flag
!= 0)
2665 /* verbose_only_flag should act as if the spec was
2666 executed, so increment execution_count before
2667 returning. This prevents spurious warnings about
2668 unused linker input files, etc. */
2673 fnotice (stderr
, "\nGo ahead? (y or n) ");
2677 while (getchar () != '\n')
2680 if (i
!= 'y' && i
!= 'Y')
2685 #ifdef ENABLE_VALGRIND_CHECKING
2686 /* Run the each command through valgrind. To simplify prepending the
2687 path to valgrind and the option "-q" (for quiet operation unless
2688 something triggers), we allocate a separate argv array. */
2690 for (i
= 0; i
< n_commands
; i
++)
2696 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2699 argv
= XALLOCAVEC (const char *, argc
+ 3);
2701 argv
[0] = VALGRIND_PATH
;
2703 for (j
= 2; j
< argc
+ 2; j
++)
2704 argv
[j
] = commands
[i
].argv
[j
- 2];
2707 commands
[i
].argv
= argv
;
2708 commands
[i
].prog
= argv
[0];
2712 /* Run each piped subprocess. */
2714 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
2715 ? PEX_RECORD_TIMES
: 0),
2716 progname
, temp_filename
);
2718 fatal_error ("pex_init failed: %m");
2720 for (i
= 0; i
< n_commands
; i
++)
2724 const char *string
= commands
[i
].argv
[0];
2726 errmsg
= pex_run (pex
,
2727 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
2728 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
2729 string
, CONST_CAST (char **, commands
[i
].argv
),
2734 fatal_error (errmsg
);
2738 pfatal_with_name (errmsg
);
2742 if (string
!= commands
[i
].prog
)
2743 free (CONST_CAST (char *, string
));
2748 /* Wait for all the subprocesses to finish. */
2752 struct pex_time
*times
= NULL
;
2755 statuses
= (int *) alloca (n_commands
* sizeof (int));
2756 if (!pex_get_status (pex
, n_commands
, statuses
))
2757 fatal_error ("failed to get exit status: %m");
2759 if (report_times
|| report_times_to_file
)
2761 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
2762 if (!pex_get_times (pex
, n_commands
, times
))
2763 fatal_error ("failed to get process times: %m");
2768 for (i
= 0; i
< n_commands
; ++i
)
2770 int status
= statuses
[i
];
2772 if (WIFSIGNALED (status
))
2775 /* SIGPIPE is a special case. It happens in -pipe mode
2776 when the compiler dies before the preprocessor is done,
2777 or the assembler dies before the compiler is done.
2778 There's generally been an error already, and this is
2779 just fallout. So don't generate another error unless
2780 we would otherwise have succeeded. */
2781 if (WTERMSIG (status
) == SIGPIPE
2782 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2789 internal_error ("%s (program %s)",
2790 strsignal (WTERMSIG (status
)), commands
[i
].prog
);
2792 else if (WIFEXITED (status
)
2793 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2795 if (WEXITSTATUS (status
) > greatest_status
)
2796 greatest_status
= WEXITSTATUS (status
);
2800 if (report_times
|| report_times_to_file
)
2802 struct pex_time
*pt
= ×
[i
];
2805 ut
= ((double) pt
->user_seconds
2806 + (double) pt
->user_microseconds
/ 1.0e6
);
2807 st
= ((double) pt
->system_seconds
2808 + (double) pt
->system_microseconds
/ 1.0e6
);
2813 fnotice (stderr
, "# %s %.2f %.2f\n",
2814 commands
[i
].prog
, ut
, st
);
2816 if (report_times_to_file
)
2819 const char *const *j
;
2821 fprintf (report_times_to_file
, "%g %g", ut
, st
);
2823 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
2826 for (p
= *j
; *p
; ++p
)
2827 if (*p
== '"' || *p
== '\\' || *p
== '$'
2833 fprintf (report_times_to_file
, " \"");
2834 for (p
= *j
; *p
; ++p
)
2836 if (*p
== '"' || *p
== '\\' || *p
== '$')
2837 fputc ('\\', report_times_to_file
);
2838 fputc (*p
, report_times_to_file
);
2840 fputc ('"', report_times_to_file
);
2843 fprintf (report_times_to_file
, " %s", *j
);
2846 fputc ('\n', report_times_to_file
);
2856 /* Find all the switches given to us
2857 and make a vector describing them.
2858 The elements of the vector are strings, one per switch given.
2859 If a switch uses following arguments, then the `part1' field
2860 is the switch itself and the `args' field
2861 is a null-terminated vector containing the following arguments.
2862 Bits in the `live_cond' field are:
2863 SWITCH_LIVE to indicate this switch is true in a conditional spec.
2864 SWITCH_FALSE to indicate this switch is overridden by a later switch.
2865 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
2866 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored
2867 in all do_spec calls afterwards. Used for %<S from self specs.
2868 The `validated' field is nonzero if any spec has looked at this switch;
2869 if it remains zero at the end of the run, it must be meaningless. */
2871 #define SWITCH_LIVE (1 << 0)
2872 #define SWITCH_FALSE (1 << 1)
2873 #define SWITCH_IGNORE (1 << 2)
2874 #define SWITCH_IGNORE_PERMANENTLY (1 << 3)
2875 #define SWITCH_KEEP_FOR_GCC (1 << 4)
2881 unsigned int live_cond
;
2887 static struct switchstr
*switches
;
2889 static int n_switches
;
2891 static int n_switches_alloc
;
2893 /* Set to zero if -fcompare-debug is disabled, positive if it's
2894 enabled and we're running the first compilation, negative if it's
2895 enabled and we're running the second compilation. For most of the
2896 time, it's in the range -1..1, but it can be temporarily set to 2
2897 or 3 to indicate that the -fcompare-debug flags didn't come from
2898 the command-line, but rather from the GCC_COMPARE_DEBUG environment
2899 variable, until a synthesized -fcompare-debug flag is added to the
2903 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
2904 int compare_debug_second
;
2906 /* Set to the flags that should be passed to the second compilation in
2907 a -fcompare-debug compilation. */
2908 const char *compare_debug_opt
;
2910 static struct switchstr
*switches_debug_check
[2];
2912 static int n_switches_debug_check
[2];
2914 static int n_switches_alloc_debug_check
[2];
2916 static char *debug_check_temp_file
[2];
2918 /* Language is one of three things:
2920 1) The name of a real programming language.
2921 2) NULL, indicating that no one has figured out
2923 3) '*', indicating that the file should be passed
2928 const char *language
;
2929 struct compiler
*incompiler
;
2934 /* Also a vector of input files specified. */
2936 static struct infile
*infiles
;
2940 static int n_infiles_alloc
;
2942 /* True if multiple input files are being compiled to a single
2945 static bool combine_inputs
;
2947 /* This counts the number of libraries added by lang_specific_driver, so that
2948 we can tell if there were any user supplied any files or libraries. */
2950 static int added_libraries
;
2952 /* And a vector of corresponding output files is made up later. */
2954 const char **outfiles
;
2956 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2958 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2959 is true if we should look for an executable suffix. DO_OBJ
2960 is true if we should look for an object suffix. */
2963 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
2964 int do_obj ATTRIBUTE_UNUSED
)
2966 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2974 len
= strlen (name
);
2976 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2977 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2978 if (do_obj
&& len
> 2
2979 && name
[len
- 2] == '.'
2980 && name
[len
- 1] == 'o')
2982 obstack_grow (&obstack
, name
, len
- 2);
2983 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
2984 name
= XOBFINISH (&obstack
, const char *);
2988 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2989 /* If there is no filetype, make it the executable suffix (which includes
2990 the "."). But don't get confused if we have just "-o". */
2991 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2994 for (i
= len
- 1; i
>= 0; i
--)
2995 if (IS_DIR_SEPARATOR (name
[i
]))
2998 for (i
++; i
< len
; i
++)
3002 obstack_grow (&obstack
, name
, len
);
3003 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3004 strlen (TARGET_EXECUTABLE_SUFFIX
));
3005 name
= XOBFINISH (&obstack
, const char *);
3012 /* Display the command line switches accepted by gcc. */
3016 printf (_("Usage: %s [options] file...\n"), progname
);
3017 fputs (_("Options:\n"), stdout
);
3019 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3020 fputs (_(" --help Display this information\n"), stdout
);
3021 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3022 fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...]\n"), stdout
);
3023 fputs (_(" Display specific types of command line options\n"), stdout
);
3025 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3026 fputs (_(" --version Display compiler version information\n"), stdout
);
3027 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3028 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3029 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3030 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3031 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3032 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3033 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3035 -print-multiarch Display the target's normalized GNU triplet, used as\n\
3036 a component in the library path\n"), stdout
);
3037 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3039 -print-multi-lib Display the mapping between command line options and\n\
3040 multiple library search directories\n"), stdout
);
3041 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3042 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout
);
3043 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
3044 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3045 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3046 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3047 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3048 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3049 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3050 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3051 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout
);
3053 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3054 prefixes to other gcc components\n"), stdout
);
3055 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3056 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3057 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3058 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3060 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3061 and libraries\n"), stdout
);
3062 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3063 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3064 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3065 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3066 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3067 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3068 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3069 fputs (_(" -pie Create a position independent executable\n"), stdout
);
3070 fputs (_(" -shared Create a shared library\n"), stdout
);
3072 -x <language> Specify the language of the following input files\n\
3073 Permissible languages include: c c++ assembler none\n\
3074 'none' means revert to the default behavior of\n\
3075 guessing the language based on the file's extension\n\
3079 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3080 passed on to the various sub-processes invoked by %s. In order to pass\n\
3081 other options on to these processes the -W<letter> options must be used.\n\
3084 /* The rest of the options are displayed by invocations of the various
3089 add_preprocessor_option (const char *option
, int len
)
3091 preprocessor_options
.safe_push (save_string (option
, len
));
3095 add_assembler_option (const char *option
, int len
)
3097 assembler_options
.safe_push (save_string (option
, len
));
3101 add_linker_option (const char *option
, int len
)
3103 linker_options
.safe_push (save_string (option
, len
));
3106 /* Allocate space for an input file in infiles. */
3111 if (n_infiles_alloc
== 0)
3113 n_infiles_alloc
= 16;
3114 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3116 else if (n_infiles_alloc
== n_infiles
)
3118 n_infiles_alloc
*= 2;
3119 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3123 /* Store an input file with the given NAME and LANGUAGE in
3127 add_infile (const char *name
, const char *language
)
3130 infiles
[n_infiles
].name
= name
;
3131 infiles
[n_infiles
++].language
= language
;
3134 /* Allocate space for a switch in switches. */
3139 if (n_switches_alloc
== 0)
3141 n_switches_alloc
= 16;
3142 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3144 else if (n_switches_alloc
== n_switches
)
3146 n_switches_alloc
*= 2;
3147 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3151 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3152 as validated if VALIDATED and KNOWN if it is an internal switch. */
3155 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3156 bool validated
, bool known
)
3159 switches
[n_switches
].part1
= opt
+ 1;
3161 switches
[n_switches
].args
= 0;
3164 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3165 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3166 switches
[n_switches
].args
[n_args
] = NULL
;
3169 switches
[n_switches
].live_cond
= 0;
3170 switches
[n_switches
].validated
= validated
;
3171 switches
[n_switches
].known
= known
;
3172 switches
[n_switches
].ordering
= 0;
3176 /* Handle an option DECODED that is unknown to the option-processing
3180 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3182 const char *opt
= decoded
->arg
;
3183 if (opt
[1] == 'W' && opt
[2] == 'n' && opt
[3] == 'o' && opt
[4] == '-'
3184 && !(decoded
->errors
& CL_ERR_NEGATIVE
))
3186 /* Leave unknown -Wno-* options for the compiler proper, to be
3187 diagnosed only if there are warnings. */
3188 save_switch (decoded
->canonical_option
[0],
3189 decoded
->canonical_option_num_elements
- 1,
3190 &decoded
->canonical_option
[1], false, true);
3193 if (decoded
->opt_index
== OPT_SPECIAL_unknown
)
3195 /* Give it a chance to define it a a spec file. */
3196 save_switch (decoded
->canonical_option
[0],
3197 decoded
->canonical_option_num_elements
- 1,
3198 &decoded
->canonical_option
[1], false, false);
3205 /* Handle an option DECODED that is not marked as CL_DRIVER.
3206 LANG_MASK will always be CL_DRIVER. */
3209 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3210 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3212 /* At this point, non-driver options are accepted (and expected to
3213 be passed down by specs) unless marked to be rejected by the
3214 driver. Options to be rejected by the driver but accepted by the
3215 compilers proper are treated just like completely unknown
3217 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3219 if (option
->cl_reject_driver
)
3220 error ("unrecognized command line option %qs",
3221 decoded
->orig_option_with_args_text
);
3223 save_switch (decoded
->canonical_option
[0],
3224 decoded
->canonical_option_num_elements
- 1,
3225 &decoded
->canonical_option
[1], false, true);
3228 static const char *spec_lang
= 0;
3229 static int last_language_n_infiles
;
3231 /* Handle a driver option; arguments and return value as for
3235 driver_handle_option (struct gcc_options
*opts
,
3236 struct gcc_options
*opts_set
,
3237 const struct cl_decoded_option
*decoded
,
3238 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
3240 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
,
3241 diagnostic_context
*dc
)
3243 size_t opt_index
= decoded
->opt_index
;
3244 const char *arg
= decoded
->arg
;
3245 const char *compare_debug_replacement_opt
;
3246 int value
= decoded
->value
;
3247 bool validated
= false;
3248 bool do_save
= true;
3250 gcc_assert (opts
== &global_options
);
3251 gcc_assert (opts_set
== &global_options_set
);
3252 gcc_assert (kind
== DK_UNSPECIFIED
);
3253 gcc_assert (loc
== UNKNOWN_LOCATION
);
3254 gcc_assert (dc
== global_dc
);
3260 struct spec_list
*sl
;
3262 for (sl
= specs
; sl
; sl
= sl
->next
)
3263 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3264 if (link_command_spec
)
3265 printf ("*link_command:\n%s\n\n", link_command_spec
);
3269 case OPT_dumpversion
:
3270 printf ("%s\n", spec_version
);
3273 case OPT_dumpmachine
:
3274 printf ("%s\n", spec_machine
);
3280 /* CPP driver cannot obtain switch from cc1_options. */
3282 add_preprocessor_option ("--version", strlen ("--version"));
3283 add_assembler_option ("--version", strlen ("--version"));
3284 add_linker_option ("--version", strlen ("--version"));
3288 print_help_list
= 1;
3290 /* CPP driver cannot obtain switch from cc1_options. */
3292 add_preprocessor_option ("--help", 6);
3293 add_assembler_option ("--help", 6);
3294 add_linker_option ("--help", 6);
3298 print_subprocess_help
= 2;
3301 case OPT__target_help
:
3302 print_subprocess_help
= 1;
3304 /* CPP driver cannot obtain switch from cc1_options. */
3306 add_preprocessor_option ("--target-help", 13);
3307 add_assembler_option ("--target-help", 13);
3308 add_linker_option ("--target-help", 13);
3311 case OPT__no_sysroot_suffix
:
3312 case OPT_pass_exit_codes
:
3313 case OPT_print_search_dirs
:
3314 case OPT_print_file_name_
:
3315 case OPT_print_prog_name_
:
3316 case OPT_print_multi_lib
:
3317 case OPT_print_multi_directory
:
3318 case OPT_print_sysroot
:
3319 case OPT_print_multi_os_directory
:
3320 case OPT_print_multiarch
:
3321 case OPT_print_sysroot_headers_suffix
:
3324 /* These options set the variables specified in common.opt
3325 automatically, and do not need to be saved for spec
3330 case OPT_print_libgcc_file_name
:
3331 print_file_name
= "libgcc.a";
3335 case OPT_fcompare_debug_second
:
3336 compare_debug_second
= 1;
3339 case OPT_fcompare_debug
:
3343 compare_debug_replacement_opt
= "-fcompare-debug=";
3345 goto compare_debug_with_arg
;
3348 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
3350 goto compare_debug_with_arg
;
3357 case OPT_fcompare_debug_
:
3358 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
3359 compare_debug_with_arg
:
3360 gcc_assert (decoded
->canonical_option_num_elements
== 1);
3361 gcc_assert (arg
!= NULL
);
3366 if (compare_debug
< 0)
3367 compare_debug_opt
= NULL
;
3369 compare_debug_opt
= arg
;
3370 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
, true);
3376 /* Pass the rest of this option to the assembler. */
3378 /* Split the argument at commas. */
3380 for (j
= 0; arg
[j
]; j
++)
3383 add_assembler_option (arg
+ prev
, j
- prev
);
3387 /* Record the part after the last comma. */
3388 add_assembler_option (arg
+ prev
, j
- prev
);
3396 /* Pass the rest of this option to the preprocessor. */
3398 /* Split the argument at commas. */
3400 for (j
= 0; arg
[j
]; j
++)
3403 add_preprocessor_option (arg
+ prev
, j
- prev
);
3407 /* Record the part after the last comma. */
3408 add_preprocessor_option (arg
+ prev
, j
- prev
);
3416 /* Split the argument at commas. */
3418 for (j
= 0; arg
[j
]; j
++)
3421 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
3424 /* Record the part after the last comma. */
3425 add_infile (arg
+ prev
, "*");
3431 add_infile (arg
, "*");
3435 case OPT_Xpreprocessor
:
3436 add_preprocessor_option (arg
, strlen (arg
));
3440 case OPT_Xassembler
:
3441 add_assembler_option (arg
, strlen (arg
));
3446 /* POSIX allows separation of -l and the lib arg; canonicalize
3447 by concatenating -l with its arg */
3448 add_infile (concat ("-l", arg
, NULL
), "*");
3453 /* Similarly, canonicalize -L for linkers that may not accept
3454 separate arguments. */
3455 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
, true);
3460 save_switch (concat ("-F", arg
, NULL
), 0, NULL
, validated
, true);
3463 case OPT_save_temps
:
3464 save_temps_flag
= SAVE_TEMPS_CWD
;
3468 case OPT_save_temps_
:
3469 if (strcmp (arg
, "cwd") == 0)
3470 save_temps_flag
= SAVE_TEMPS_CWD
;
3471 else if (strcmp (arg
, "obj") == 0
3472 || strcmp (arg
, "object") == 0)
3473 save_temps_flag
= SAVE_TEMPS_OBJ
;
3475 fatal_error ("%qs is an unknown -save-temps option",
3476 decoded
->orig_option_with_args_text
);
3479 case OPT_no_canonical_prefixes
:
3480 /* Already handled as a special case, so ignored here. */
3486 /* These options set the variables specified in common.opt
3487 automatically, but do need to be saved for spec
3493 struct user_specs
*user
= XNEW (struct user_specs
);
3495 user
->next
= (struct user_specs
*) 0;
3496 user
->filename
= arg
;
3497 if (user_specs_tail
)
3498 user_specs_tail
->next
= user
;
3500 user_specs_head
= user
;
3501 user_specs_tail
= user
;
3507 target_system_root
= arg
;
3508 target_system_root_changed
= 1;
3513 if (report_times_to_file
)
3514 fclose (report_times_to_file
);
3515 report_times_to_file
= fopen (arg
, "a");
3521 This is similar to -v except that there is no execution
3522 of the commands and the echoed arguments are quoted. It
3523 is intended for use in shell scripts to capture the
3524 driver-generated command line. */
3525 verbose_only_flag
++;
3532 size_t len
= strlen (arg
);
3534 /* Catch the case where the user has forgotten to append a
3535 directory separator to the path. Note, they may be using
3536 -B to add an executable name prefix, eg "i386-elf-", in
3537 order to distinguish between multiple installations of
3538 GCC in the same directory. Hence we must check to see
3539 if appending a directory separator actually makes a
3540 valid directory name. */
3541 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
3542 && is_directory (arg
, false))
3544 char *tmp
= XNEWVEC (char, len
+ 2);
3546 tmp
[len
] = DIR_SEPARATOR
;
3551 add_prefix (&exec_prefixes
, arg
, NULL
,
3552 PREFIX_PRIORITY_B_OPT
, 0, 0);
3553 add_prefix (&startfile_prefixes
, arg
, NULL
,
3554 PREFIX_PRIORITY_B_OPT
, 0, 0);
3555 add_prefix (&include_prefixes
, arg
, NULL
,
3556 PREFIX_PRIORITY_B_OPT
, 0, 0);
3563 if (!strcmp (spec_lang
, "none"))
3564 /* Suppress the warning if -xnone comes after the last input
3565 file, because alternate command interfaces like g++ might
3566 find it useful to place -xnone after each input file. */
3569 last_language_n_infiles
= n_infiles
;
3575 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3576 arg
= convert_filename (arg
, ! have_c
, 0);
3578 /* Save the output name in case -save-temps=obj was used. */
3579 save_temps_prefix
= xstrdup (arg
);
3580 /* On some systems, ld cannot handle "-o" without a space. So
3581 split the option from its argument. */
3582 save_switch ("-o", 1, &arg
, validated
, true);
3585 case OPT_static_libgcc
:
3586 case OPT_shared_libgcc
:
3587 case OPT_static_libgfortran
:
3588 case OPT_static_libstdc__
:
3589 /* These are always valid, since gcc.c itself understands the
3590 first two, gfortranspec.c understands -static-libgfortran and
3591 g++spec.c understands -static-libstdc++ */
3596 /* Various driver options need no special processing at this
3597 point, having been handled in a prescan above or being
3598 handled by specs. */
3603 save_switch (decoded
->canonical_option
[0],
3604 decoded
->canonical_option_num_elements
- 1,
3605 &decoded
->canonical_option
[1], validated
, true);
3609 /* Put the driver's standard set of option handlers in *HANDLERS. */
3612 set_option_handlers (struct cl_option_handlers
*handlers
)
3614 handlers
->unknown_option_callback
= driver_unknown_option_callback
;
3615 handlers
->wrong_lang_callback
= driver_wrong_lang_callback
;
3616 handlers
->num_handlers
= 3;
3617 handlers
->handlers
[0].handler
= driver_handle_option
;
3618 handlers
->handlers
[0].mask
= CL_DRIVER
;
3619 handlers
->handlers
[1].handler
= common_handle_option
;
3620 handlers
->handlers
[1].mask
= CL_COMMON
;
3621 handlers
->handlers
[2].handler
= target_handle_option
;
3622 handlers
->handlers
[2].mask
= CL_TARGET
;
3625 /* Create the vector `switches' and its contents.
3626 Store its length in `n_switches'. */
3629 process_command (unsigned int decoded_options_count
,
3630 struct cl_decoded_option
*decoded_options
)
3634 char *tooldir_prefix
, *tooldir_prefix2
;
3635 char *(*get_relative_prefix
) (const char *, const char *,
3636 const char *) = NULL
;
3637 struct cl_option_handlers handlers
;
3640 gcc_exec_prefix
= getenv ("GCC_EXEC_PREFIX");
3644 added_libraries
= 0;
3646 /* Figure compiler version from version string. */
3648 compiler_version
= temp1
= xstrdup (version_string
);
3650 for (; *temp1
; ++temp1
)
3659 /* Handle any -no-canonical-prefixes flag early, to assign the function
3660 that builds relative prefixes. This function creates default search
3661 paths that are needed later in normal option handling. */
3663 for (j
= 1; j
< decoded_options_count
; j
++)
3665 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
3667 get_relative_prefix
= make_relative_prefix_ignore_links
;
3671 if (! get_relative_prefix
)
3672 get_relative_prefix
= make_relative_prefix
;
3674 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3675 see if we can create it from the pathname specified in
3676 decoded_options[0].arg. */
3678 gcc_libexec_prefix
= standard_libexec_prefix
;
3680 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3681 if (!gcc_exec_prefix
)
3683 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3684 standard_bindir_prefix
,
3685 standard_exec_prefix
);
3686 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3687 standard_bindir_prefix
,
3688 standard_libexec_prefix
);
3689 if (gcc_exec_prefix
)
3690 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3694 /* make_relative_prefix requires a program name, but
3695 GCC_EXEC_PREFIX is typically a directory name with a trailing
3696 / (which is ignored by make_relative_prefix), so append a
3698 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3699 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
3700 standard_exec_prefix
,
3701 standard_libexec_prefix
);
3703 /* The path is unrelocated, so fallback to the original setting. */
3704 if (!gcc_libexec_prefix
)
3705 gcc_libexec_prefix
= standard_libexec_prefix
;
3711 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3712 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3713 or an automatically created GCC_EXEC_PREFIX from
3714 decoded_options[0].arg. */
3716 /* Do language-specific adjustment/addition of flags. */
3717 lang_specific_driver (&decoded_options
, &decoded_options_count
,
3720 if (gcc_exec_prefix
)
3722 int len
= strlen (gcc_exec_prefix
);
3724 if (len
> (int) sizeof ("/lib/gcc/") - 1
3725 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3727 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3728 if (IS_DIR_SEPARATOR (*temp
)
3729 && filename_ncmp (temp
+ 1, "lib", 3) == 0
3730 && IS_DIR_SEPARATOR (temp
[4])
3731 && filename_ncmp (temp
+ 5, "gcc", 3) == 0)
3732 len
-= sizeof ("/lib/gcc/") - 1;
3735 set_std_prefix (gcc_exec_prefix
, len
);
3736 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3737 PREFIX_PRIORITY_LAST
, 0, 0);
3738 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3739 PREFIX_PRIORITY_LAST
, 0, 0);
3742 /* COMPILER_PATH and LIBRARY_PATH have values
3743 that are lists of directory names with colons. */
3745 temp
= getenv ("COMPILER_PATH");
3748 const char *startp
, *endp
;
3749 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3751 startp
= endp
= temp
;
3754 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3756 strncpy (nstore
, startp
, endp
- startp
);
3758 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3759 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3761 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3762 nstore
[endp
- startp
+ 1] = 0;
3765 nstore
[endp
- startp
] = 0;
3766 add_prefix (&exec_prefixes
, nstore
, 0,
3767 PREFIX_PRIORITY_LAST
, 0, 0);
3768 add_prefix (&include_prefixes
, nstore
, 0,
3769 PREFIX_PRIORITY_LAST
, 0, 0);
3772 endp
= startp
= endp
+ 1;
3779 temp
= getenv (LIBRARY_PATH_ENV
);
3780 if (temp
&& *cross_compile
== '0')
3782 const char *startp
, *endp
;
3783 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3785 startp
= endp
= temp
;
3788 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3790 strncpy (nstore
, startp
, endp
- startp
);
3792 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3793 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3795 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3796 nstore
[endp
- startp
+ 1] = 0;
3799 nstore
[endp
- startp
] = 0;
3800 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3801 PREFIX_PRIORITY_LAST
, 0, 1);
3804 endp
= startp
= endp
+ 1;
3811 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3812 temp
= getenv ("LPATH");
3813 if (temp
&& *cross_compile
== '0')
3815 const char *startp
, *endp
;
3816 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3818 startp
= endp
= temp
;
3821 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3823 strncpy (nstore
, startp
, endp
- startp
);
3825 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3826 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3828 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3829 nstore
[endp
- startp
+ 1] = 0;
3832 nstore
[endp
- startp
] = 0;
3833 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3834 PREFIX_PRIORITY_LAST
, 0, 1);
3837 endp
= startp
= endp
+ 1;
3844 /* Process the options and store input files and switches in their
3847 last_language_n_infiles
= -1;
3849 set_option_handlers (&handlers
);
3851 for (j
= 1; j
< decoded_options_count
; j
++)
3853 switch (decoded_options
[j
].opt_index
)
3865 for (j
= 1; j
< decoded_options_count
; j
++)
3867 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
3869 const char *arg
= decoded_options
[j
].arg
;
3870 const char *p
= strrchr (arg
, '@');
3874 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3875 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
3877 /* For LTO static archive support we handle input file
3878 specifications that are composed of a filename and
3879 an offset like FNAME@OFFSET. */
3882 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
3883 && strlen (p
) == (unsigned int)consumed
)
3885 fname
= (char *)xmalloc (p
- arg
+ 1);
3886 memcpy (fname
, arg
, p
- arg
);
3887 fname
[p
- arg
] = '\0';
3888 /* Only accept non-stdin and existing FNAME parts, otherwise
3889 try with the full name. */
3890 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
3893 fname
= xstrdup (arg
);
3897 fname
= xstrdup (arg
);
3899 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
3900 perror_with_name (fname
);
3902 add_infile (arg
, spec_lang
);
3908 read_cmdline_option (&global_options
, &global_options_set
,
3909 decoded_options
+ j
, UNKNOWN_LOCATION
,
3910 CL_DRIVER
, &handlers
, global_dc
);
3913 /* If -save-temps=obj and -o name, create the prefix to use for %b.
3914 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
3915 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
3917 save_temps_length
= strlen (save_temps_prefix
);
3918 temp
= strrchr (lbasename (save_temps_prefix
), '.');
3921 save_temps_length
-= strlen (temp
);
3922 save_temps_prefix
[save_temps_length
] = '\0';
3926 else if (save_temps_prefix
!= NULL
)
3928 free (save_temps_prefix
);
3929 save_temps_prefix
= NULL
;
3932 if (save_temps_flag
&& use_pipes
)
3934 /* -save-temps overrides -pipe, so that temp files are produced */
3935 if (save_temps_flag
)
3936 warning (0, "-pipe ignored because -save-temps specified");
3942 const char *gcd
= getenv ("GCC_COMPARE_DEBUG");
3944 if (gcd
&& gcd
[0] == '-')
3947 compare_debug_opt
= gcd
;
3949 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
3952 compare_debug_opt
= "-gtoggle";
3955 else if (compare_debug
< 0)
3958 gcc_assert (!compare_debug_opt
);
3961 /* Set up the search paths. We add directories that we expect to
3962 contain GNU Toolchain components before directories specified by
3963 the machine description so that we will find GNU components (like
3964 the GNU assembler) before those of the host system. */
3966 /* If we don't know where the toolchain has been installed, use the
3967 configured-in locations. */
3968 if (!gcc_exec_prefix
)
3971 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
3972 PREFIX_PRIORITY_LAST
, 1, 0);
3973 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
3974 PREFIX_PRIORITY_LAST
, 2, 0);
3975 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3976 PREFIX_PRIORITY_LAST
, 2, 0);
3978 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3979 PREFIX_PRIORITY_LAST
, 1, 0);
3982 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
3983 tooldir_prefix2
= concat (tooldir_base_prefix
, spec_machine
,
3984 dir_separator_str
, NULL
);
3986 /* Look for tools relative to the location from which the driver is
3987 running, or, if that is not available, the configured prefix. */
3989 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
3990 spec_machine
, dir_separator_str
,
3991 spec_version
, dir_separator_str
, tooldir_prefix2
, NULL
);
3992 free (tooldir_prefix2
);
3994 add_prefix (&exec_prefixes
,
3995 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3996 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
3997 add_prefix (&startfile_prefixes
,
3998 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3999 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4000 free (tooldir_prefix
);
4002 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4003 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4004 then consider it to relocate with the rest of the GCC installation
4005 if GCC_EXEC_PREFIX is set.
4006 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4007 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
4009 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4010 standard_bindir_prefix
,
4011 target_system_root
);
4012 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4014 target_system_root
= tmp_prefix
;
4015 target_system_root_changed
= 1;
4020 /* More prefixes are enabled in main, after we read the specs file
4021 and determine whether this is cross-compilation or not. */
4023 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4024 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
4026 /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG
4027 environment variable. */
4028 if (compare_debug
== 2 || compare_debug
== 3)
4030 const char *opt
= concat ("-fcompare-debug=", compare_debug_opt
, NULL
);
4031 save_switch (opt
, 0, NULL
, false, true);
4035 /* Ensure we only invoke each subprocess once. */
4036 if (print_subprocess_help
|| print_help_list
|| print_version
)
4040 /* Create a dummy input file, so that we can pass
4041 the help option on to the various sub-processes. */
4042 add_infile ("help-dummy", "c");
4046 switches
[n_switches
].part1
= 0;
4048 infiles
[n_infiles
].name
= 0;
4051 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4052 and place that in the environment. */
4055 set_collect_gcc_options (void)
4060 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4062 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4063 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4066 for (i
= 0; (int) i
< n_switches
; i
++)
4068 const char *const *args
;
4071 obstack_grow (&collect_obstack
, " ", 1);
4075 /* Ignore elided switches. */
4076 if ((switches
[i
].live_cond
4077 & (SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
))
4081 obstack_grow (&collect_obstack
, "'-", 2);
4082 q
= switches
[i
].part1
;
4083 while ((p
= strchr (q
, '\'')))
4085 obstack_grow (&collect_obstack
, q
, p
- q
);
4086 obstack_grow (&collect_obstack
, "'\\''", 4);
4089 obstack_grow (&collect_obstack
, q
, strlen (q
));
4090 obstack_grow (&collect_obstack
, "'", 1);
4092 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4094 obstack_grow (&collect_obstack
, " '", 2);
4096 while ((p
= strchr (q
, '\'')))
4098 obstack_grow (&collect_obstack
, q
, p
- q
);
4099 obstack_grow (&collect_obstack
, "'\\''", 4);
4102 obstack_grow (&collect_obstack
, q
, strlen (q
));
4103 obstack_grow (&collect_obstack
, "'", 1);
4106 obstack_grow (&collect_obstack
, "\0", 1);
4107 xputenv (XOBFINISH (&collect_obstack
, char *));
4110 /* Process a spec string, accumulating and running commands. */
4112 /* These variables describe the input file name.
4113 input_file_number is the index on outfiles of this file,
4114 so that the output file name can be stored for later use by %o.
4115 input_basename is the start of the part of the input file
4116 sans all directory names, and basename_length is the number
4117 of characters starting there excluding the suffix .c or whatever. */
4119 static const char *gcc_input_filename
;
4120 static int input_file_number
;
4121 size_t input_filename_length
;
4122 static int basename_length
;
4123 static int suffixed_basename_length
;
4124 static const char *input_basename
;
4125 static const char *input_suffix
;
4126 #ifndef HOST_LACKS_INODE_NUMBERS
4127 static struct stat input_stat
;
4129 static int input_stat_set
;
4131 /* The compiler used to process the current input file. */
4132 static struct compiler
*input_file_compiler
;
4134 /* These are variables used within do_spec and do_spec_1. */
4136 /* Nonzero if an arg has been started and not yet terminated
4137 (with space, tab or newline). */
4138 static int arg_going
;
4140 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4141 is a temporary file name. */
4142 static int delete_this_arg
;
4144 /* Nonzero means %w has been seen; the next arg to be terminated
4145 is the output file name of this compilation. */
4146 static int this_is_output_file
;
4148 /* Nonzero means %s has been seen; the next arg to be terminated
4149 is the name of a library file and we should try the standard
4150 search dirs for it. */
4151 static int this_is_library_file
;
4153 /* Nonzero means %T has been seen; the next arg to be terminated
4154 is the name of a linker script and we should try all of the
4155 standard search dirs for it. If it is found insert a --script
4156 command line switch and then substitute the full path in place,
4157 otherwise generate an error message. */
4158 static int this_is_linker_script
;
4160 /* Nonzero means that the input of this command is coming from a pipe. */
4161 static int input_from_pipe
;
4163 /* Nonnull means substitute this for any suffix when outputting a switches
4165 static const char *suffix_subst
;
4167 /* If there is an argument being accumulated, terminate it and store it. */
4170 end_going_arg (void)
4176 obstack_1grow (&obstack
, 0);
4177 string
= XOBFINISH (&obstack
, const char *);
4178 if (this_is_library_file
)
4179 string
= find_file (string
);
4180 if (this_is_linker_script
)
4182 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4184 if (full_script_path
== NULL
)
4186 error ("unable to locate default linker script %qs in the library search paths", string
);
4187 /* Script was not found on search path. */
4190 store_arg ("--script", false, false);
4191 string
= full_script_path
;
4193 store_arg (string
, delete_this_arg
, this_is_output_file
);
4194 if (this_is_output_file
)
4195 outfiles
[input_file_number
] = string
;
4201 /* Parse the WRAPPER string which is a comma separated list of the command line
4202 and insert them into the beginning of argbuf. */
4205 insert_wrapper (const char *wrapper
)
4209 char *buf
= xstrdup (wrapper
);
4211 unsigned int old_length
= argbuf
.length ();
4219 while ((p
= strchr (p
, ',')) != NULL
);
4221 argbuf
.safe_grow (old_length
+ n
);
4222 memmove (argbuf
.address () + n
,
4224 old_length
* sizeof (const_char_p
));
4238 while ((p
= strchr (p
, ',')) != NULL
);
4239 gcc_assert (i
== n
);
4242 /* Process the spec SPEC and run the commands specified therein.
4243 Returns 0 if the spec is successfully processed; -1 if failed. */
4246 do_spec (const char *spec
)
4250 value
= do_spec_2 (spec
);
4252 /* Force out any unfinished command.
4253 If -pipe, this forces out the last command if it ended in `|'. */
4256 if (argbuf
.length () > 0
4257 && !strcmp (argbuf
.last (), "|"))
4260 set_collect_gcc_options ();
4262 if (argbuf
.length () > 0)
4270 do_spec_2 (const char *spec
)
4276 delete_this_arg
= 0;
4277 this_is_output_file
= 0;
4278 this_is_library_file
= 0;
4279 this_is_linker_script
= 0;
4280 input_from_pipe
= 0;
4281 suffix_subst
= NULL
;
4283 result
= do_spec_1 (spec
, 0, NULL
);
4291 /* Process the given spec string and add any new options to the end
4292 of the switches/n_switches array. */
4295 do_option_spec (const char *name
, const char *spec
)
4297 unsigned int i
, value_count
, value_len
;
4298 const char *p
, *q
, *value
;
4299 char *tmp_spec
, *tmp_spec_p
;
4301 if (configure_default_options
[0].name
== NULL
)
4304 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4305 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4307 if (i
== ARRAY_SIZE (configure_default_options
))
4310 value
= configure_default_options
[i
].value
;
4311 value_len
= strlen (value
);
4313 /* Compute the size of the final spec. */
4316 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4322 /* Replace each %(VALUE) by the specified value. */
4323 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4324 + value_count
* (value_len
- strlen ("%(VALUE)")));
4325 tmp_spec_p
= tmp_spec
;
4327 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4329 memcpy (tmp_spec_p
, q
, p
- q
);
4330 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4331 memcpy (tmp_spec_p
, value
, value_len
);
4332 tmp_spec_p
+= value_len
;
4333 q
= p
+ strlen ("%(VALUE)");
4335 strcpy (tmp_spec_p
, q
);
4337 do_self_spec (tmp_spec
);
4340 /* Process the given spec string and add any new options to the end
4341 of the switches/n_switches array. */
4344 do_self_spec (const char *spec
)
4349 do_spec_1 (" ", 0, NULL
);
4351 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
4352 do_self_specs adds the replacements to switches array, so it shouldn't
4353 be processed afterwards. */
4354 for (i
= 0; i
< n_switches
; i
++)
4355 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
4356 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
4358 if (argbuf
.length () > 0)
4360 const char **argbuf_copy
;
4361 struct cl_decoded_option
*decoded_options
;
4362 struct cl_option_handlers handlers
;
4363 unsigned int decoded_options_count
;
4366 /* Create a copy of argbuf with a dummy argv[0] entry for
4367 decode_cmdline_options_to_array. */
4368 argbuf_copy
= XNEWVEC (const char *,
4369 argbuf
.length () + 1);
4370 argbuf_copy
[0] = "";
4371 memcpy (argbuf_copy
+ 1, argbuf
.address (),
4372 argbuf
.length () * sizeof (const char *));
4374 decode_cmdline_options_to_array (argbuf
.length () + 1,
4376 CL_DRIVER
, &decoded_options
,
4377 &decoded_options_count
);
4380 set_option_handlers (&handlers
);
4382 for (j
= 1; j
< decoded_options_count
; j
++)
4384 switch (decoded_options
[j
].opt_index
)
4386 case OPT_SPECIAL_input_file
:
4387 /* Specs should only generate options, not input
4389 if (strcmp (decoded_options
[j
].arg
, "-") != 0)
4390 fatal_error ("switch %qs does not start with %<-%>",
4391 decoded_options
[j
].arg
);
4393 fatal_error ("spec-generated switch is just %<-%>");
4396 case OPT_fcompare_debug_second
:
4397 case OPT_fcompare_debug
:
4398 case OPT_fcompare_debug_
:
4400 /* Avoid duplicate processing of some options from
4401 compare-debug specs; just save them here. */
4402 save_switch (decoded_options
[j
].canonical_option
[0],
4403 (decoded_options
[j
].canonical_option_num_elements
4405 &decoded_options
[j
].canonical_option
[1], false, true);
4409 read_cmdline_option (&global_options
, &global_options_set
,
4410 decoded_options
+ j
, UNKNOWN_LOCATION
,
4411 CL_DRIVER
, &handlers
, global_dc
);
4417 switches
[n_switches
].part1
= 0;
4421 /* Callback for processing %D and %I specs. */
4423 struct spec_path_info
{
4428 bool separate_options
;
4432 spec_path (char *path
, void *data
)
4434 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
4438 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4441 if (info
->append_len
!= 0)
4443 len
= strlen (path
);
4444 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4447 if (!is_directory (path
, true))
4450 do_spec_1 (info
->option
, 1, NULL
);
4451 if (info
->separate_options
)
4452 do_spec_1 (" ", 0, NULL
);
4454 if (info
->append_len
== 0)
4456 len
= strlen (path
);
4457 save
= path
[len
- 1];
4458 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4459 path
[len
- 1] = '\0';
4462 do_spec_1 (path
, 1, NULL
);
4463 do_spec_1 (" ", 0, NULL
);
4465 /* Must not damage the original path. */
4466 if (info
->append_len
== 0)
4467 path
[len
- 1] = save
;
4472 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
4476 create_at_file (char **argv
)
4478 char *temp_file
= make_temp_file ("");
4479 char *at_argument
= concat ("@", temp_file
, NULL
);
4480 FILE *f
= fopen (temp_file
, "w");
4484 fatal_error ("could not open temporary response file %s",
4487 status
= writeargv (argv
, f
);
4490 fatal_error ("could not write to temporary response file %s",
4493 status
= fclose (f
);
4496 fatal_error ("could not close temporary response file %s",
4499 store_arg (at_argument
, 0, 0);
4501 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
4504 /* True if we should compile INFILE. */
4507 compile_input_file_p (struct infile
*infile
)
4509 if ((!infile
->language
) || (infile
->language
[0] != '*'))
4510 if (infile
->incompiler
== input_file_compiler
)
4515 /* Process each member of VEC as a spec. */
4518 do_specs_vec (vec
<char_p
> vec
)
4523 FOR_EACH_VEC_ELT (vec
, ix
, opt
)
4525 do_spec_1 (opt
, 1, NULL
);
4526 /* Make each accumulated option a separate argument. */
4527 do_spec_1 (" ", 0, NULL
);
4531 /* Process the sub-spec SPEC as a portion of a larger spec.
4532 This is like processing a whole spec except that we do
4533 not initialize at the beginning and we do not supply a
4534 newline by default at the end.
4535 INSWITCH nonzero means don't process %-sequences in SPEC;
4536 in this case, % is treated as an ordinary character.
4537 This is used while substituting switches.
4538 INSWITCH nonzero also causes SPC not to terminate an argument.
4540 Value is zero unless a line was finished
4541 and the command on that line reported an error. */
4544 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4546 const char *p
= spec
;
4551 /* If it's an empty string argument to a switch, keep it as is. */
4552 if (inswitch
&& !*p
)
4556 /* If substituting a switch, treat all chars like letters.
4557 Otherwise, NL, SPC, TAB and % are special. */
4558 switch (inswitch
? 'a' : c
)
4563 if (argbuf
.length () > 0
4564 && !strcmp (argbuf
.last (), "|"))
4566 /* A `|' before the newline means use a pipe here,
4567 but only if -pipe was specified.
4568 Otherwise, execute now and don't pass the `|' as an arg. */
4571 input_from_pipe
= 1;
4578 set_collect_gcc_options ();
4580 if (argbuf
.length () > 0)
4586 /* Reinitialize for a new command, and for a new argument. */
4589 delete_this_arg
= 0;
4590 this_is_output_file
= 0;
4591 this_is_library_file
= 0;
4592 this_is_linker_script
= 0;
4593 input_from_pipe
= 0;
4600 obstack_1grow (&obstack
, c
);
4608 /* Reinitialize for a new argument. */
4609 delete_this_arg
= 0;
4610 this_is_output_file
= 0;
4611 this_is_library_file
= 0;
4612 this_is_linker_script
= 0;
4619 fatal_error ("spec %qs invalid", spec
);
4622 if (save_temps_length
)
4623 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4625 obstack_grow (&obstack
, input_basename
, basename_length
);
4626 if (compare_debug
< 0)
4627 obstack_grow (&obstack
, ".gk", 3);
4632 if (save_temps_length
)
4633 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4635 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4636 if (compare_debug
< 0)
4637 obstack_grow (&obstack
, ".gk", 3);
4642 delete_this_arg
= 2;
4645 /* Dump out the directories specified with LIBRARY_PATH,
4646 followed by the absolute directories
4647 that we search for startfiles. */
4650 struct spec_path_info info
;
4653 info
.append_len
= 0;
4654 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4655 /* Used on systems which record the specified -L dirs
4656 and use them to search for dynamic linking.
4657 Relative directories always come from -B,
4658 and it is better not to use them for searching
4659 at run time. In particular, stage1 loses. */
4660 info
.omit_relative
= true;
4662 info
.omit_relative
= false;
4664 info
.separate_options
= false;
4666 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
4671 /* %efoo means report an error with `foo' as error message
4672 and don't execute any more commands for this file. */
4676 while (*p
!= 0 && *p
!= '\n')
4678 buf
= (char *) alloca (p
- q
+ 1);
4679 strncpy (buf
, q
, p
- q
);
4681 error ("%s", _(buf
));
4686 /* %nfoo means report a notice with `foo' on stderr. */
4690 while (*p
!= 0 && *p
!= '\n')
4692 buf
= (char *) alloca (p
- q
+ 1);
4693 strncpy (buf
, q
, p
- q
);
4695 inform (0, "%s", _(buf
));
4705 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4706 defined, and it is not a directory, and it is
4707 writable, use it. Otherwise, treat this like any
4708 other temporary file. */
4710 if ((!save_temps_flag
)
4711 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4712 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4714 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4715 strlen (HOST_BIT_BUCKET
));
4716 delete_this_arg
= 0;
4721 goto create_temp_file
;
4725 obstack_1grow (&obstack
, '-');
4726 delete_this_arg
= 0;
4729 /* consume suffix */
4730 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4732 if (p
[0] == '%' && p
[1] == 'O')
4737 goto create_temp_file
;
4741 /* consume suffix */
4742 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4744 if (p
[0] == '%' && p
[1] == 'O')
4749 goto create_temp_file
;
4755 struct temp_name
*t
;
4757 const char *suffix
= p
;
4758 char *saved_suffix
= NULL
;
4760 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4762 suffix_length
= p
- suffix
;
4763 if (p
[0] == '%' && p
[1] == 'O')
4766 /* We don't support extra suffix characters after %O. */
4767 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
4768 fatal_error ("spec %qs has invalid %<%%0%c%>", spec
, *p
);
4769 if (suffix_length
== 0)
4770 suffix
= TARGET_OBJECT_SUFFIX
;
4774 = XNEWVEC (char, suffix_length
4775 + strlen (TARGET_OBJECT_SUFFIX
));
4776 strncpy (saved_suffix
, suffix
, suffix_length
);
4777 strcpy (saved_suffix
+ suffix_length
,
4778 TARGET_OBJECT_SUFFIX
);
4780 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4783 if (compare_debug
< 0)
4785 suffix
= concat (".gk", suffix
, NULL
);
4789 /* If -save-temps=obj and -o were specified, use that for the
4791 if (save_temps_length
)
4794 temp_filename_length
4795 = save_temps_length
+ suffix_length
+ 1;
4796 tmp
= (char *) alloca (temp_filename_length
);
4797 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
4798 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
4799 tmp
[save_temps_length
+ suffix_length
] = '\0';
4800 temp_filename
= save_string (tmp
, save_temps_length
4802 obstack_grow (&obstack
, temp_filename
,
4803 temp_filename_length
);
4805 delete_this_arg
= 0;
4809 /* If the gcc_input_filename has the same suffix specified
4810 for the %g, %u, or %U, and -save-temps is specified,
4811 we could end up using that file as an intermediate
4812 thus clobbering the user's source file (.e.g.,
4813 gcc -save-temps foo.s would clobber foo.s with the
4814 output of cpp0). So check for this condition and
4815 generate a temp file as the intermediate. */
4817 if (save_temps_flag
)
4820 temp_filename_length
= basename_length
+ suffix_length
+ 1;
4821 tmp
= (char *) alloca (temp_filename_length
);
4822 memcpy (tmp
, input_basename
, basename_length
);
4823 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
4824 tmp
[basename_length
+ suffix_length
] = '\0';
4825 temp_filename
= tmp
;
4827 if (filename_cmp (temp_filename
, gcc_input_filename
) != 0)
4829 #ifndef HOST_LACKS_INODE_NUMBERS
4830 struct stat st_temp
;
4832 /* Note, set_input() resets input_stat_set to 0. */
4833 if (input_stat_set
== 0)
4835 input_stat_set
= stat (gcc_input_filename
,
4837 if (input_stat_set
>= 0)
4841 /* If we have the stat for the gcc_input_filename
4842 and we can do the stat for the temp_filename
4843 then the they could still refer to the same
4844 file if st_dev/st_ino's are the same. */
4845 if (input_stat_set
!= 1
4846 || stat (temp_filename
, &st_temp
) < 0
4847 || input_stat
.st_dev
!= st_temp
.st_dev
4848 || input_stat
.st_ino
!= st_temp
.st_ino
)
4850 /* Just compare canonical pathnames. */
4851 char* input_realname
= lrealpath (gcc_input_filename
);
4852 char* temp_realname
= lrealpath (temp_filename
);
4853 bool files_differ
= filename_cmp (input_realname
, temp_realname
);
4854 free (input_realname
);
4855 free (temp_realname
);
4859 temp_filename
= save_string (temp_filename
,
4860 temp_filename_length
+ 1);
4861 obstack_grow (&obstack
, temp_filename
,
4862 temp_filename_length
);
4864 delete_this_arg
= 0;
4870 /* See if we already have an association of %g/%u/%U and
4872 for (t
= temp_names
; t
; t
= t
->next
)
4873 if (t
->length
== suffix_length
4874 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4875 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4878 /* Make a new association if needed. %u and %j
4880 if (t
== 0 || c
== 'u' || c
== 'j')
4884 t
= XNEW (struct temp_name
);
4885 t
->next
= temp_names
;
4888 t
->length
= suffix_length
;
4891 t
->suffix
= saved_suffix
;
4892 saved_suffix
= NULL
;
4895 t
->suffix
= save_string (suffix
, suffix_length
);
4896 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4897 temp_filename
= make_temp_file (t
->suffix
);
4898 temp_filename_length
= strlen (temp_filename
);
4899 t
->filename
= temp_filename
;
4900 t
->filename_length
= temp_filename_length
;
4903 free (saved_suffix
);
4905 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4906 delete_this_arg
= 1;
4914 if (at_file_supplied
)
4916 /* We are going to expand `%i' to `@FILE', where FILE
4917 is a newly-created temporary filename. The filenames
4918 that would usually be expanded in place of %o will be
4919 written to the temporary file. */
4924 for (i
= 0; i
< n_infiles
; i
++)
4925 if (compile_input_file_p (&infiles
[i
]))
4928 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
4930 /* Copy the strings over. */
4931 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
4932 if (compile_input_file_p (&infiles
[i
]))
4934 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
4935 infiles
[i
].compiled
= true;
4940 create_at_file (argv
);
4943 for (i
= 0; (int) i
< n_infiles
; i
++)
4944 if (compile_input_file_p (&infiles
[i
]))
4946 store_arg (infiles
[i
].name
, 0, 0);
4947 infiles
[i
].compiled
= true;
4952 obstack_grow (&obstack
, gcc_input_filename
,
4953 input_filename_length
);
4960 struct spec_path_info info
;
4964 do_spec_1 ("-imultilib", 1, NULL
);
4965 /* Make this a separate argument. */
4966 do_spec_1 (" ", 0, NULL
);
4967 do_spec_1 (multilib_dir
, 1, NULL
);
4968 do_spec_1 (" ", 0, NULL
);
4973 do_spec_1 ("-imultiarch", 1, NULL
);
4974 /* Make this a separate argument. */
4975 do_spec_1 (" ", 0, NULL
);
4976 do_spec_1 (multiarch_dir
, 1, NULL
);
4977 do_spec_1 (" ", 0, NULL
);
4980 if (gcc_exec_prefix
)
4982 do_spec_1 ("-iprefix", 1, NULL
);
4983 /* Make this a separate argument. */
4984 do_spec_1 (" ", 0, NULL
);
4985 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4986 do_spec_1 (" ", 0, NULL
);
4989 if (target_system_root_changed
||
4990 (target_system_root
&& target_sysroot_hdrs_suffix
))
4992 do_spec_1 ("-isysroot", 1, NULL
);
4993 /* Make this a separate argument. */
4994 do_spec_1 (" ", 0, NULL
);
4995 do_spec_1 (target_system_root
, 1, NULL
);
4996 if (target_sysroot_hdrs_suffix
)
4997 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4998 do_spec_1 (" ", 0, NULL
);
5001 info
.option
= "-isystem";
5002 info
.append
= "include";
5003 info
.append_len
= strlen (info
.append
);
5004 info
.omit_relative
= false;
5005 info
.separate_options
= true;
5007 for_each_path (&include_prefixes
, false, info
.append_len
,
5010 info
.append
= "include-fixed";
5011 if (*sysroot_hdrs_suffix_spec
)
5012 info
.append
= concat (info
.append
, dir_separator_str
,
5013 multilib_dir
, NULL
);
5014 info
.append_len
= strlen (info
.append
);
5015 for_each_path (&include_prefixes
, false, info
.append_len
,
5022 int max
= n_infiles
;
5023 max
+= lang_specific_extra_outfiles
;
5025 if (HAVE_GNU_LD
&& at_file_supplied
)
5027 /* We are going to expand `%o' to `@FILE', where FILE
5028 is a newly-created temporary filename. The filenames
5029 that would usually be expanded in place of %o will be
5030 written to the temporary file. */
5035 /* Convert OUTFILES into a form suitable for writeargv. */
5037 /* Determine how many are non-NULL. */
5038 for (n_files
= 0, i
= 0; i
< max
; i
++)
5039 n_files
+= outfiles
[i
] != NULL
;
5041 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5043 /* Copy the strings over. */
5044 for (i
= 0, j
= 0; i
< max
; i
++)
5047 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5052 create_at_file (argv
);
5055 for (i
= 0; i
< max
; i
++)
5057 store_arg (outfiles
[i
], 0, 0);
5062 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5067 this_is_library_file
= 1;
5071 this_is_linker_script
= 1;
5075 outfiles
[input_file_number
] = NULL
;
5079 this_is_output_file
= 1;
5084 unsigned int cur_index
= argbuf
.length ();
5085 /* Handle the {...} following the %W. */
5087 fatal_error ("spec %qs has invalid %<%%W%c%>", spec
, *p
);
5088 p
= handle_braces (p
+ 1);
5092 /* If any args were output, mark the last one for deletion
5094 if (argbuf
.length () != cur_index
)
5095 record_temp_file (argbuf
.last (), 0, 1);
5099 /* %x{OPTION} records OPTION for %X to output. */
5107 /* Skip past the option value and make a copy. */
5109 fatal_error ("spec %qs has invalid %<%%x%c%>", spec
, *p
);
5112 string
= save_string (p1
+ 1, p
- p1
- 2);
5114 /* See if we already recorded this option. */
5115 FOR_EACH_VEC_ELT (linker_options
, ix
, opt
)
5116 if (! strcmp (string
, opt
))
5122 /* This option is new; add it. */
5123 add_linker_option (string
, strlen (string
));
5128 /* Dump out the options accumulated previously using %x. */
5130 do_specs_vec (linker_options
);
5133 /* Dump out the options accumulated previously using -Wa,. */
5135 do_specs_vec (assembler_options
);
5138 /* Dump out the options accumulated previously using -Wp,. */
5140 do_specs_vec (preprocessor_options
);
5143 /* Here are digits and numbers that just process
5144 a certain constant string as a spec. */
5147 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5153 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5159 value
= do_spec_1 (asm_spec
, 0, NULL
);
5165 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5172 const char *const spec
5173 = (input_file_compiler
->cpp_spec
5174 ? input_file_compiler
->cpp_spec
5176 value
= do_spec_1 (spec
, 0, NULL
);
5183 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5189 value
= do_spec_1 (link_spec
, 0, NULL
);
5195 value
= do_spec_1 (lib_spec
, 0, NULL
);
5201 if (multilib_os_dir
== NULL
)
5202 obstack_1grow (&obstack
, '.');
5204 obstack_grow (&obstack
, multilib_os_dir
,
5205 strlen (multilib_os_dir
));
5209 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5215 /* We assume there is a directory
5216 separator at the end of this string. */
5217 if (target_system_root
)
5219 obstack_grow (&obstack
, target_system_root
,
5220 strlen (target_system_root
));
5221 if (target_sysroot_suffix
)
5222 obstack_grow (&obstack
, target_sysroot_suffix
,
5223 strlen (target_sysroot_suffix
));
5228 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5233 /* Here we define characters other than letters and digits. */
5236 p
= handle_braces (p
);
5242 p
= handle_spec_function (p
);
5248 obstack_1grow (&obstack
, '%');
5255 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5257 suffix_subst
= save_string (p
- 1, len
+ 1);
5262 /* Henceforth ignore the option(s) matching the pattern
5268 int have_wildcard
= 0;
5273 switch_option
= SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
;
5275 switch_option
= SWITCH_IGNORE
;
5277 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5280 if (p
[len
-1] == '*')
5283 for (i
= 0; i
< n_switches
; i
++)
5284 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5285 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5287 switches
[i
].live_cond
|= switch_option
;
5288 /* User switch be validated from validate_all_switches.
5289 when the definition is seen from the spec file.
5290 If not defined anywhere, will be rejected. */
5291 if (switches
[i
].known
)
5292 switches
[i
].validated
= true;
5300 if (soft_matched_part
)
5302 if (soft_matched_part
[0])
5303 do_spec_1 (soft_matched_part
, 1, NULL
);
5304 do_spec_1 (" ", 0, NULL
);
5307 /* Catch the case where a spec string contains something like
5308 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5309 hand side of the :. */
5310 error ("spec failure: %<%%*%> has not been initialized by pattern match");
5313 /* Process a string found as the value of a spec given by name.
5314 This feature allows individual machine descriptions
5315 to add and use their own specs. */
5318 const char *name
= p
;
5319 struct spec_list
*sl
;
5322 /* The string after the S/P is the name of a spec that is to be
5324 while (*p
&& *p
!= ')')
5327 /* See if it's in the list. */
5328 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5329 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5331 name
= *(sl
->ptr_spec
);
5333 fnotice (stderr
, "Processing spec (%s), which is '%s'\n",
5341 value
= do_spec_1 (name
, 0, NULL
);
5346 /* Discard the closing paren. */
5353 error ("spec failure: unrecognized spec option %qc", c
);
5359 /* Backslash: treat next character as ordinary. */
5364 /* Ordinary character: put it into the current argument. */
5365 obstack_1grow (&obstack
, c
);
5369 /* End of string. If we are processing a spec function, we need to
5370 end any pending argument. */
5371 if (processing_spec_function
)
5377 /* Look up a spec function. */
5379 static const struct spec_function
*
5380 lookup_spec_function (const char *name
)
5382 const struct spec_function
*sf
;
5384 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5385 if (strcmp (sf
->name
, name
) == 0)
5391 /* Evaluate a spec function. */
5394 eval_spec_function (const char *func
, const char *args
)
5396 const struct spec_function
*sf
;
5397 const char *funcval
;
5399 /* Saved spec processing context. */
5400 vec
<const_char_p
> save_argbuf
;
5403 int save_delete_this_arg
;
5404 int save_this_is_output_file
;
5405 int save_this_is_library_file
;
5406 int save_input_from_pipe
;
5407 int save_this_is_linker_script
;
5408 const char *save_suffix_subst
;
5410 int save_growing_size
;
5411 void *save_growing_value
;
5413 sf
= lookup_spec_function (func
);
5415 fatal_error ("unknown spec function %qs", func
);
5417 /* Push the spec processing context. */
5418 save_argbuf
= argbuf
;
5420 save_arg_going
= arg_going
;
5421 save_delete_this_arg
= delete_this_arg
;
5422 save_this_is_output_file
= this_is_output_file
;
5423 save_this_is_library_file
= this_is_library_file
;
5424 save_this_is_linker_script
= this_is_linker_script
;
5425 save_input_from_pipe
= input_from_pipe
;
5426 save_suffix_subst
= suffix_subst
;
5428 /* If we have some object growing now, finalize it so the args and function
5429 eval proceed from a cleared context. This is needed to prevent the first
5430 constructed arg from mistakenly including the growing value. We'll push
5431 this value back on the obstack once the function evaluation is done, to
5432 restore a consistent processing context for our caller. This is fine as
5433 the address of growing objects isn't guaranteed to remain stable until
5434 they are finalized, and we expect this situation to be rare enough for
5435 the extra copy not to be an issue. */
5436 save_growing_size
= obstack_object_size (&obstack
);
5437 if (save_growing_size
> 0)
5438 save_growing_value
= obstack_finish (&obstack
);
5440 /* Create a new spec processing context, and build the function
5444 if (do_spec_2 (args
) < 0)
5445 fatal_error ("error in args to spec function %qs", func
);
5447 /* argbuf_index is an index for the next argument to be inserted, and
5448 so contains the count of the args already inserted. */
5450 funcval
= (*sf
->func
) (argbuf
.length (),
5453 /* Pop the spec processing context. */
5455 argbuf
= save_argbuf
;
5457 arg_going
= save_arg_going
;
5458 delete_this_arg
= save_delete_this_arg
;
5459 this_is_output_file
= save_this_is_output_file
;
5460 this_is_library_file
= save_this_is_library_file
;
5461 this_is_linker_script
= save_this_is_linker_script
;
5462 input_from_pipe
= save_input_from_pipe
;
5463 suffix_subst
= save_suffix_subst
;
5465 if (save_growing_size
> 0)
5466 obstack_grow (&obstack
, save_growing_value
, save_growing_size
);
5471 /* Handle a spec function call of the form:
5475 ARGS is processed as a spec in a separate context and split into an
5476 argument vector in the normal fashion. The function returns a string
5477 containing a spec which we then process in the caller's context, or
5478 NULL if no processing is required. */
5481 handle_spec_function (const char *p
)
5484 const char *endp
, *funcval
;
5487 processing_spec_function
++;
5489 /* Get the function name. */
5490 for (endp
= p
; *endp
!= '\0'; endp
++)
5492 if (*endp
== '(') /* ) */
5494 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5495 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5496 fatal_error ("malformed spec function name");
5498 if (*endp
!= '(') /* ) */
5499 fatal_error ("no arguments for spec function");
5500 func
= save_string (p
, endp
- p
);
5503 /* Get the arguments. */
5504 for (count
= 0; *endp
!= '\0'; endp
++)
5513 else if (*endp
== '(') /* ) */
5518 fatal_error ("malformed spec function arguments");
5519 args
= save_string (p
, endp
- p
);
5522 /* p now points to just past the end of the spec function expression. */
5524 funcval
= eval_spec_function (func
, args
);
5525 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5531 processing_spec_function
--;
5536 /* Inline subroutine of handle_braces. Returns true if the current
5537 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5539 input_suffix_matches (const char *atom
, const char *end_atom
)
5541 return (input_suffix
5542 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5543 && input_suffix
[end_atom
- atom
] == '\0');
5546 /* Subroutine of handle_braces. Returns true if the current
5547 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
5549 input_spec_matches (const char *atom
, const char *end_atom
)
5551 return (input_file_compiler
5552 && input_file_compiler
->suffix
5553 && input_file_compiler
->suffix
[0] != '\0'
5554 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
5556 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
5559 /* Subroutine of handle_braces. Returns true if a switch
5560 matching the atom bracketed by ATOM and END_ATOM appeared on the
5563 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5566 int len
= end_atom
- atom
;
5567 int plen
= starred
? len
: -1;
5569 for (i
= 0; i
< n_switches
; i
++)
5570 if (!strncmp (switches
[i
].part1
, atom
, len
)
5571 && (starred
|| switches
[i
].part1
[len
] == '\0')
5572 && check_live_switch (i
, plen
))
5575 /* Check if a switch with separated form matching the atom.
5576 We check -D and -U switches. */
5577 else if (switches
[i
].args
!= 0)
5579 if ((*switches
[i
].part1
== 'D' || *switches
[i
].part1
== 'U')
5580 && *switches
[i
].part1
== atom
[0])
5582 if (!strncmp (switches
[i
].args
[0], &atom
[1], len
- 1)
5583 && (starred
|| (switches
[i
].part1
[1] == '\0'
5584 && switches
[i
].args
[0][len
- 1] == '\0'))
5585 && check_live_switch (i
, (starred
? 1 : -1)))
5593 /* Inline subroutine of handle_braces. Mark all of the switches which
5594 match ATOM (extends to END_ATOM; STARRED indicates whether there
5595 was a star after the atom) for later processing. */
5597 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5600 int len
= end_atom
- atom
;
5601 int plen
= starred
? len
: -1;
5603 for (i
= 0; i
< n_switches
; i
++)
5604 if (!strncmp (switches
[i
].part1
, atom
, len
)
5605 && (starred
|| switches
[i
].part1
[len
] == '\0')
5606 && check_live_switch (i
, plen
))
5607 switches
[i
].ordering
= 1;
5610 /* Inline subroutine of handle_braces. Process all the currently
5611 marked switches through give_switch, and clear the marks. */
5613 process_marked_switches (void)
5617 for (i
= 0; i
< n_switches
; i
++)
5618 if (switches
[i
].ordering
== 1)
5620 switches
[i
].ordering
= 0;
5625 /* Handle a %{ ... } construct. P points just inside the leading {.
5626 Returns a pointer one past the end of the brace block, or 0
5627 if we call do_spec_1 and that returns -1. */
5630 handle_braces (const char *p
)
5632 const char *atom
, *end_atom
;
5633 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5634 const char *orig
= p
;
5642 bool a_must_be_last
= false;
5643 bool ordered_set
= false;
5644 bool disjunct_set
= false;
5645 bool disj_matched
= false;
5646 bool disj_starred
= true;
5647 bool n_way_choice
= false;
5648 bool n_way_matched
= false;
5650 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5657 /* Scan one "atom" (S in the description above of %{}, possibly
5658 with '!', '.', '@', ',', or '*' modifiers). */
5660 a_is_suffix
= false;
5661 a_is_starred
= false;
5662 a_is_negated
= false;
5663 a_is_spectype
= false;
5667 p
++, a_is_negated
= true;
5671 p
++, a_is_suffix
= true;
5673 p
++, a_is_spectype
= true;
5676 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5677 || *p
== ',' || *p
== '.' || *p
== '@')
5682 p
++, a_is_starred
= 1;
5688 /* Substitute the switch(es) indicated by the current atom. */
5690 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5691 || a_is_spectype
|| atom
== end_atom
)
5694 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5697 process_marked_switches ();
5701 /* Substitute some text if the current atom appears as a switch
5703 disjunct_set
= true;
5707 if (atom
== end_atom
)
5709 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5710 || a_is_negated
|| a_is_suffix
|| a_is_spectype
5714 /* An empty term may appear as the last choice of an
5715 N-way choice set; it means "otherwise". */
5716 a_must_be_last
= true;
5717 disj_matched
= !n_way_matched
;
5718 disj_starred
= false;
5722 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
5726 disj_starred
= false;
5728 /* Don't bother testing this atom if we already have a
5730 if (!disj_matched
&& !n_way_matched
)
5733 a_matched
= input_suffix_matches (atom
, end_atom
);
5734 else if (a_is_spectype
)
5735 a_matched
= input_spec_matches (atom
, end_atom
);
5737 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5739 if (a_matched
!= a_is_negated
)
5741 disj_matched
= true;
5743 d_end_atom
= end_atom
;
5750 /* Found the body, that is, the text to substitute if the
5751 current disjunction matches. */
5752 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5753 disj_matched
&& !n_way_matched
);
5757 /* If we have an N-way choice, reset state for the next
5761 n_way_choice
= true;
5762 n_way_matched
|= disj_matched
;
5763 disj_matched
= false;
5764 disj_starred
= true;
5765 d_atom
= d_end_atom
= NULL
;
5774 while (*p
++ != '}');
5779 fatal_error ("braced spec %qs is invalid at %qc", orig
, *p
);
5784 /* Subroutine of handle_braces. Scan and process a brace substitution body
5785 (X in the description of %{} syntax). P points one past the colon;
5786 ATOM and END_ATOM bracket the first atom which was found to be true
5787 (present) in the current disjunction; STARRED indicates whether all
5788 the atoms in the current disjunction were starred (for syntax validation);
5789 MATCHED indicates whether the disjunction matched or not, and therefore
5790 whether or not the body is to be processed through do_spec_1 or just
5791 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5795 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5796 int starred
, int matched
)
5798 const char *body
, *end_body
;
5799 unsigned int nesting_level
;
5800 bool have_subst
= false;
5802 /* Locate the closing } or ;, honoring nested braces.
5803 Trim trailing whitespace. */
5812 if (!--nesting_level
)
5815 else if (*p
== ';' && nesting_level
== 1)
5817 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5819 else if (*p
== '\0')
5825 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5828 if (have_subst
&& !starred
)
5833 /* Copy the substitution body to permanent storage and execute it.
5834 If have_subst is false, this is a simple matter of running the
5835 body through do_spec_1... */
5836 char *string
= save_string (body
, end_body
- body
);
5839 if (do_spec_1 (string
, 0, NULL
) < 0)
5844 /* ... but if have_subst is true, we have to process the
5845 body once for each matching switch, with %* set to the
5846 variant part of the switch. */
5847 unsigned int hard_match_len
= end_atom
- atom
;
5850 for (i
= 0; i
< n_switches
; i
++)
5851 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5852 && check_live_switch (i
, hard_match_len
))
5854 if (do_spec_1 (string
, 0,
5855 &switches
[i
].part1
[hard_match_len
]) < 0)
5857 /* Pass any arguments this switch has. */
5859 suffix_subst
= NULL
;
5867 fatal_error ("braced spec body %qs is invalid", body
);
5870 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5871 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5872 spec, or -1 if either exact match or %* is used.
5874 A -O switch is obsoleted by a later -O switch. A -f, -g, -m, or -W switch
5875 whose value does not begin with "no-" is obsoleted by the same value
5876 with the "no-", similarly for a switch with the "no-" prefix. */
5879 check_live_switch (int switchnum
, int prefix_length
)
5881 const char *name
= switches
[switchnum
].part1
;
5884 /* If we already processed this switch and determined if it was
5885 live or not, return our past determination. */
5886 if (switches
[switchnum
].live_cond
!= 0)
5887 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
5888 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
5889 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
5892 /* In the common case of {<at-most-one-letter>*}, a negating
5893 switch would always match, so ignore that case. We will just
5894 send the conflicting switches to the compiler phase. */
5895 if (prefix_length
>= 0 && prefix_length
<= 1)
5898 /* Now search for duplicate in a manner that depends on the name. */
5902 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5903 if (switches
[i
].part1
[0] == 'O')
5905 switches
[switchnum
].validated
= true;
5906 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5911 case 'W': case 'f': case 'm': case 'g':
5912 if (! strncmp (name
+ 1, "no-", 3))
5914 /* We have Xno-YYY, search for XYYY. */
5915 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5916 if (switches
[i
].part1
[0] == name
[0]
5917 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5919 /* --specs are validated with the validate_switches mechanism. */
5920 if (switches
[switchnum
].known
)
5921 switches
[switchnum
].validated
= true;
5922 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5928 /* We have XYYY, search for Xno-YYY. */
5929 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5930 if (switches
[i
].part1
[0] == name
[0]
5931 && switches
[i
].part1
[1] == 'n'
5932 && switches
[i
].part1
[2] == 'o'
5933 && switches
[i
].part1
[3] == '-'
5934 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5936 /* --specs are validated with the validate_switches mechanism. */
5937 if (switches
[switchnum
].known
)
5938 switches
[switchnum
].validated
= true;
5939 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5946 /* Otherwise the switch is live. */
5947 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
5951 /* Pass a switch to the current accumulating command
5952 in the same form that we received it.
5953 SWITCHNUM identifies the switch; it is an index into
5954 the vector of switches gcc received, which is `switches'.
5955 This cannot fail since it never finishes a command line.
5957 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5960 give_switch (int switchnum
, int omit_first_word
)
5962 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
5965 if (!omit_first_word
)
5967 do_spec_1 ("-", 0, NULL
);
5968 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5971 if (switches
[switchnum
].args
!= 0)
5974 for (p
= switches
[switchnum
].args
; *p
; p
++)
5976 const char *arg
= *p
;
5978 do_spec_1 (" ", 0, NULL
);
5981 unsigned length
= strlen (arg
);
5984 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5985 if (arg
[length
] == '.')
5987 (CONST_CAST(char *, arg
))[length
] = 0;
5991 do_spec_1 (arg
, 1, NULL
);
5993 (CONST_CAST(char *, arg
))[length
] = '.';
5994 do_spec_1 (suffix_subst
, 1, NULL
);
5997 do_spec_1 (arg
, 1, NULL
);
6001 do_spec_1 (" ", 0, NULL
);
6002 switches
[switchnum
].validated
= true;
6005 /* Search for a file named NAME trying various prefixes including the
6006 user's -B prefix and some standard ones.
6007 Return the absolute file name found. If nothing is found, return NAME. */
6010 find_file (const char *name
)
6012 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
6013 return newname
? newname
: name
;
6016 /* Determine whether a directory exists. If LINKER, return 0 for
6017 certain fixed names not needed by the linker. */
6020 is_directory (const char *path1
, bool linker
)
6027 /* Ensure the string ends with "/.". The resulting path will be a
6028 directory even if the given path is a symbolic link. */
6029 len1
= strlen (path1
);
6030 path
= (char *) alloca (3 + len1
);
6031 memcpy (path
, path1
, len1
);
6033 if (!IS_DIR_SEPARATOR (cp
[-1]))
6034 *cp
++ = DIR_SEPARATOR
;
6038 /* Exclude directories that the linker is known to search. */
6040 && IS_DIR_SEPARATOR (path
[0])
6042 && filename_ncmp (path
+ 1, "lib", 3) == 0)
6044 && filename_ncmp (path
+ 1, "usr", 3) == 0
6045 && IS_DIR_SEPARATOR (path
[4])
6046 && filename_ncmp (path
+ 5, "lib", 3) == 0)))
6049 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6052 /* Set up the various global variables to indicate that we're processing
6053 the input file named FILENAME. */
6056 set_input (const char *filename
)
6060 gcc_input_filename
= filename
;
6061 input_filename_length
= strlen (gcc_input_filename
);
6062 input_basename
= lbasename (gcc_input_filename
);
6064 /* Find a suffix starting with the last period,
6065 and set basename_length to exclude that suffix. */
6066 basename_length
= strlen (input_basename
);
6067 suffixed_basename_length
= basename_length
;
6068 p
= input_basename
+ basename_length
;
6069 while (p
!= input_basename
&& *p
!= '.')
6071 if (*p
== '.' && p
!= input_basename
)
6073 basename_length
= p
- input_basename
;
6074 input_suffix
= p
+ 1;
6079 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6080 we will need to do a stat on the gcc_input_filename. The
6081 INPUT_STAT_SET signals that the stat is needed. */
6085 /* On fatal signals, delete all the temporary files. */
6088 fatal_signal (int signum
)
6090 signal (signum
, SIG_DFL
);
6091 delete_failure_queue ();
6092 delete_temp_files ();
6093 /* Get the same signal again, this time not handled,
6094 so its normal effect occurs. */
6095 kill (getpid (), signum
);
6098 /* Compare the contents of the two files named CMPFILE[0] and
6099 CMPFILE[1]. Return zero if they're identical, nonzero
6103 compare_files (char *cmpfile
[])
6106 FILE *temp
[2] = { NULL
, NULL
};
6112 void *map
[2] = { NULL
, NULL
};
6114 for (i
= 0; i
< 2; i
++)
6118 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
6120 error ("%s: could not determine length of compare-debug file %s",
6121 gcc_input_filename
, cmpfile
[i
]);
6126 length
[i
] = st
.st_size
;
6129 if (!ret
&& length
[0] != length
[1])
6131 error ("%s: -fcompare-debug failure (length)", gcc_input_filename
);
6136 for (i
= 0; i
< 2; i
++)
6138 int fd
= open (cmpfile
[i
], O_RDONLY
);
6141 error ("%s: could not open compare-debug file %s",
6142 gcc_input_filename
, cmpfile
[i
]);
6147 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
6150 if (map
[i
] == (void *) MAP_FAILED
)
6159 if (memcmp (map
[0], map
[1], length
[0]) != 0)
6161 error ("%s: -fcompare-debug failure", gcc_input_filename
);
6166 for (i
= 0; i
< 2; i
++)
6168 munmap ((caddr_t
) map
[i
], length
[i
]);
6177 for (i
= 0; i
< 2; i
++)
6179 temp
[i
] = fopen (cmpfile
[i
], "r");
6182 error ("%s: could not open compare-debug file %s",
6183 gcc_input_filename
, cmpfile
[i
]);
6189 if (!ret
&& temp
[0] && temp
[1])
6193 c0
= fgetc (temp
[0]);
6194 c1
= fgetc (temp
[1]);
6198 error ("%s: -fcompare-debug failure",
6199 gcc_input_filename
);
6208 for (i
= 1; i
>= 0; i
--)
6217 extern int main (int, char **);
6220 main (int argc
, char **argv
)
6224 int linker_was_run
= 0;
6225 int lang_n_infiles
= 0;
6226 int num_linker_inputs
= 0;
6227 char *explicit_link_files
;
6229 char *lto_wrapper_file
;
6231 struct user_specs
*uptr
;
6232 char **old_argv
= argv
;
6233 struct cl_decoded_option
*decoded_options
;
6234 unsigned int decoded_options_count
;
6236 p
= argv
[0] + strlen (argv
[0]);
6237 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6241 xmalloc_set_program_name (progname
);
6243 expandargv (&argc
, &argv
);
6245 /* Determine if any expansions were made. */
6246 if (argv
!= old_argv
)
6247 at_file_supplied
= true;
6249 /* Register the language-independent parameters. */
6250 global_init_params ();
6253 init_options_struct (&global_options
, &global_options_set
);
6255 decode_cmdline_options_to_array (argc
, CONST_CAST2 (const char **, char **,
6258 &decoded_options
, &decoded_options_count
);
6260 /* Unlock the stdio streams. */
6261 unlock_std_streams ();
6263 gcc_init_libintl ();
6265 diagnostic_initialize (global_dc
, 0);
6267 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6268 /* Perform host dependent initialization when needed. */
6269 GCC_DRIVER_HOST_INITIALIZATION
;
6272 if (atexit (delete_temp_files
) != 0)
6273 fatal_error ("atexit failed");
6275 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6276 signal (SIGINT
, fatal_signal
);
6278 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6279 signal (SIGHUP
, fatal_signal
);
6281 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6282 signal (SIGTERM
, fatal_signal
);
6284 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6285 signal (SIGPIPE
, fatal_signal
);
6288 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6289 receive the signal. A different setting is inheritable */
6290 signal (SIGCHLD
, SIG_DFL
);
6293 /* Parsing and gimplification sometimes need quite large stack.
6294 Increase stack size limits if possible. */
6295 stack_limit_increase (64 * 1024 * 1024);
6297 /* Allocate the argument vector. */
6300 obstack_init (&obstack
);
6302 /* Build multilib_select, et. al from the separate lines that make up each
6303 multilib selection. */
6305 const char *const *q
= multilib_raw
;
6308 obstack_init (&multilib_obstack
);
6309 while ((p
= *q
++) != (char *) 0)
6310 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6312 obstack_1grow (&multilib_obstack
, 0);
6313 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6315 q
= multilib_matches_raw
;
6316 while ((p
= *q
++) != (char *) 0)
6317 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6319 obstack_1grow (&multilib_obstack
, 0);
6320 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6322 q
= multilib_exclusions_raw
;
6323 while ((p
= *q
++) != (char *) 0)
6324 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6326 obstack_1grow (&multilib_obstack
, 0);
6327 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6330 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6333 obstack_1grow (&multilib_obstack
, ' ');
6334 obstack_grow (&multilib_obstack
,
6335 multilib_defaults_raw
[i
],
6336 strlen (multilib_defaults_raw
[i
]));
6340 obstack_1grow (&multilib_obstack
, 0);
6341 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6344 #ifdef INIT_ENVIRONMENT
6345 /* Set up any other necessary machine specific environment variables. */
6346 xputenv (INIT_ENVIRONMENT
);
6349 /* Make a table of what switches there are (switches, n_switches).
6350 Make a table of specified input files (infiles, n_infiles).
6351 Decode switches that are handled locally. */
6353 process_command (decoded_options_count
, decoded_options
);
6355 /* Initialize the vector of specs to just the default.
6356 This means one element containing 0s, as a terminator. */
6358 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
6359 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6360 n_compilers
= n_default_compilers
;
6362 /* Read specs from a file if there is one. */
6364 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6365 spec_version
, dir_separator_str
, NULL
);
6366 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6368 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6369 /* Read the specs file unless it is a default one. */
6370 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6371 read_specs (specs_file
, true, false);
6375 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6376 for any override of as, ld and libraries. */
6377 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
6378 + strlen (just_machine_suffix
) + sizeof ("specs"));
6380 strcpy (specs_file
, standard_exec_prefix
);
6381 strcat (specs_file
, just_machine_suffix
);
6382 strcat (specs_file
, "specs");
6383 if (access (specs_file
, R_OK
) == 0)
6384 read_specs (specs_file
, true, false);
6386 /* Process any configure-time defaults specified for the command line
6387 options, via OPTION_DEFAULT_SPECS. */
6388 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6389 do_option_spec (option_default_specs
[i
].name
,
6390 option_default_specs
[i
].spec
);
6392 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6393 of the command line. */
6395 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6396 do_self_spec (driver_self_specs
[i
]);
6398 /* If not cross-compiling, look for executables in the standard
6400 if (*cross_compile
== '0')
6402 if (*md_exec_prefix
)
6404 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6405 PREFIX_PRIORITY_LAST
, 0, 0);
6409 /* Process sysroot_suffix_spec. */
6410 if (*sysroot_suffix_spec
!= 0
6411 && !no_sysroot_suffix
6412 && do_spec_2 (sysroot_suffix_spec
) == 0)
6414 if (argbuf
.length () > 1)
6415 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6416 else if (argbuf
.length () == 1)
6417 target_sysroot_suffix
= xstrdup (argbuf
.last ());
6420 #ifdef HAVE_LD_SYSROOT
6421 /* Pass the --sysroot option to the linker, if it supports that. If
6422 there is a sysroot_suffix_spec, it has already been processed by
6423 this point, so target_system_root really is the system root we
6425 if (target_system_root
)
6427 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6428 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6429 set_spec ("link", XOBFINISH (&obstack
, const char *), false);
6433 /* Process sysroot_hdrs_suffix_spec. */
6434 if (*sysroot_hdrs_suffix_spec
!= 0
6435 && !no_sysroot_suffix
6436 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6438 if (argbuf
.length () > 1)
6439 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6440 else if (argbuf
.length () == 1)
6441 target_sysroot_hdrs_suffix
= xstrdup (argbuf
.last ());
6444 /* Look for startfiles in the standard places. */
6445 if (*startfile_prefix_spec
!= 0
6446 && do_spec_2 (startfile_prefix_spec
) == 0
6447 && do_spec_1 (" ", 0, NULL
) == 0)
6451 FOR_EACH_VEC_ELT (argbuf
, ndx
, arg
)
6452 add_sysrooted_prefix (&startfile_prefixes
, arg
, "BINUTILS",
6453 PREFIX_PRIORITY_LAST
, 0, 1);
6455 /* We should eventually get rid of all these and stick to
6456 startfile_prefix_spec exclusively. */
6457 else if (*cross_compile
== '0' || target_system_root
)
6459 if (*md_startfile_prefix
)
6460 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6461 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6463 if (*md_startfile_prefix_1
)
6464 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6465 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6467 /* If standard_startfile_prefix is relative, base it on
6468 standard_exec_prefix. This lets us move the installed tree
6469 as a unit. If GCC_EXEC_PREFIX is defined, base
6470 standard_startfile_prefix on that as well.
6472 If the prefix is relative, only search it for native compilers;
6473 otherwise we will search a directory containing host libraries. */
6474 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6475 add_sysrooted_prefix (&startfile_prefixes
,
6476 standard_startfile_prefix
, "BINUTILS",
6477 PREFIX_PRIORITY_LAST
, 0, 1);
6478 else if (*cross_compile
== '0')
6480 add_prefix (&startfile_prefixes
,
6481 concat (gcc_exec_prefix
6482 ? gcc_exec_prefix
: standard_exec_prefix
,
6484 standard_startfile_prefix
, NULL
),
6485 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6488 /* Sysrooted prefixes are relocated because target_system_root is
6489 also relocated by gcc_exec_prefix. */
6490 if (*standard_startfile_prefix_1
)
6491 add_sysrooted_prefix (&startfile_prefixes
,
6492 standard_startfile_prefix_1
, "BINUTILS",
6493 PREFIX_PRIORITY_LAST
, 0, 1);
6494 if (*standard_startfile_prefix_2
)
6495 add_sysrooted_prefix (&startfile_prefixes
,
6496 standard_startfile_prefix_2
, "BINUTILS",
6497 PREFIX_PRIORITY_LAST
, 0, 1);
6500 /* Process any user specified specs in the order given on the command
6502 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6504 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6506 read_specs (filename
? filename
: uptr
->filename
, false, true);
6509 /* Process any user self specs. */
6511 struct spec_list
*sl
;
6512 for (sl
= specs
; sl
; sl
= sl
->next
)
6513 if (sl
->name_len
== sizeof "self_spec" - 1
6514 && !strcmp (sl
->name
, "self_spec"))
6515 do_self_spec (*sl
->ptr_spec
);
6520 enum save_temps save
;
6522 if (!compare_debug_second
)
6524 n_switches_debug_check
[1] = n_switches
;
6525 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
6526 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
6529 do_self_spec ("%:compare-debug-self-opt()");
6530 n_switches_debug_check
[0] = n_switches
;
6531 n_switches_alloc_debug_check
[0] = n_switches_alloc
;
6532 switches_debug_check
[0] = switches
;
6534 n_switches
= n_switches_debug_check
[1];
6535 n_switches_alloc
= n_switches_alloc_debug_check
[1];
6536 switches
= switches_debug_check
[1];
6539 /* Avoid crash when computing %j in this early. */
6540 save
= save_temps_flag
;
6541 save_temps_flag
= SAVE_TEMPS_NONE
;
6543 compare_debug
= -compare_debug
;
6544 do_self_spec ("%:compare-debug-self-opt()");
6546 save_temps_flag
= save
;
6548 if (!compare_debug_second
)
6550 n_switches_debug_check
[1] = n_switches
;
6551 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
6552 switches_debug_check
[1] = switches
;
6553 compare_debug
= -compare_debug
;
6554 n_switches
= n_switches_debug_check
[0];
6555 n_switches_alloc
= n_switches_debug_check
[0];
6556 switches
= switches_debug_check
[0];
6561 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6562 if (gcc_exec_prefix
)
6563 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6564 spec_version
, dir_separator_str
, NULL
);
6566 /* Now we have the specs.
6567 Set the `valid' bits for switches that match anything in any spec. */
6569 validate_all_switches ();
6571 /* Now that we have the switches and the specs, set
6572 the subdirectory based on the options. */
6573 set_multilib_dir ();
6575 /* Set up to remember the pathname of gcc and any options
6576 needed for collect. We use argv[0] instead of progname because
6577 we need the complete pathname. */
6578 obstack_init (&collect_obstack
);
6579 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6580 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6581 xputenv (XOBFINISH (&collect_obstack
, char *));
6583 /* Set up to remember the pathname of the lto wrapper. */
6586 lto_wrapper_file
= NULL
;
6588 lto_wrapper_file
= find_a_file (&exec_prefixes
, "lto-wrapper",
6590 if (lto_wrapper_file
)
6592 lto_wrapper_spec
= lto_wrapper_file
;
6593 obstack_init (&collect_obstack
);
6594 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
6595 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
6596 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
6597 strlen (lto_wrapper_spec
) + 1);
6598 xputenv (XOBFINISH (&collect_obstack
, char *));
6601 /* Reject switches that no pass was interested in. */
6603 for (i
= 0; (int) i
< n_switches
; i
++)
6604 if (! switches
[i
].validated
)
6605 error ("unrecognized command line option %<-%s%>", switches
[i
].part1
);
6607 /* Obey some of the options. */
6609 if (print_search_dirs
)
6611 printf (_("install: %s%s\n"),
6612 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
6613 gcc_exec_prefix
? "" : machine_suffix
);
6614 printf (_("programs: %s\n"),
6615 build_search_list (&exec_prefixes
, "", false, false));
6616 printf (_("libraries: %s\n"),
6617 build_search_list (&startfile_prefixes
, "", false, true));
6621 if (print_file_name
)
6623 printf ("%s\n", find_file (print_file_name
));
6627 if (print_prog_name
)
6629 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6630 printf ("%s\n", (newname
? newname
: print_prog_name
));
6634 if (print_multi_lib
)
6636 print_multilib_info ();
6640 if (print_multi_directory
)
6642 if (multilib_dir
== NULL
)
6645 printf ("%s\n", multilib_dir
);
6649 if (print_multiarch
)
6651 if (multiarch_dir
== NULL
)
6654 printf ("%s\n", multiarch_dir
);
6660 if (target_system_root
)
6662 if (target_sysroot_suffix
)
6663 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
6665 printf ("%s\n", target_system_root
);
6670 if (print_multi_os_directory
)
6672 if (multilib_os_dir
== NULL
)
6675 printf ("%s\n", multilib_os_dir
);
6679 if (print_sysroot_headers_suffix
)
6681 if (*sysroot_hdrs_suffix_spec
)
6683 printf("%s\n", (target_sysroot_hdrs_suffix
6684 ? target_sysroot_hdrs_suffix
6689 /* The error status indicates that only one set of fixed
6690 headers should be built. */
6691 fatal_error ("not configured with sysroot headers suffix");
6694 if (print_help_list
)
6700 printf (_("\nFor bug reporting instructions, please see:\n"));
6701 printf ("%s.\n", bug_report_url
);
6706 /* We do not exit here. Instead we have created a fake input file
6707 called 'help-dummy' which needs to be compiled, and we pass this
6708 on the various sub-processes, along with the --help switch.
6709 Ensure their output appears after ours. */
6710 fputc ('\n', stdout
);
6716 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
6718 printf ("Copyright %s 2013 Free Software Foundation, Inc.\n",
6720 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
6721 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
6726 /* We do not exit here. We use the same mechanism of --help to print
6727 the version of the sub-processes. */
6728 fputc ('\n', stdout
);
6737 fnotice (stderr
, "Target: %s\n", spec_machine
);
6738 fnotice (stderr
, "Configured with: %s\n", configuration_arguments
);
6740 #ifdef THREAD_MODEL_SPEC
6741 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6742 but there's no point in doing all this processing just to get
6743 thread_model back. */
6744 obstack_init (&obstack
);
6745 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6746 obstack_1grow (&obstack
, '\0');
6747 thrmod
= XOBFINISH (&obstack
, const char *);
6749 thrmod
= thread_model
;
6752 fnotice (stderr
, "Thread model: %s\n", thrmod
);
6754 /* compiler_version is truncated at the first space when initialized
6755 from version string, so truncate version_string at the first space
6756 before comparing. */
6757 for (n
= 0; version_string
[n
]; n
++)
6758 if (version_string
[n
] == ' ')
6761 if (! strncmp (version_string
, compiler_version
, n
)
6762 && compiler_version
[n
] == 0)
6763 fnotice (stderr
, "gcc version %s %s\n", version_string
,
6766 fnotice (stderr
, "gcc driver version %s %sexecuting gcc version %s\n",
6767 version_string
, pkgversion_string
, compiler_version
);
6773 if (n_infiles
== added_libraries
)
6774 fatal_error ("no input files");
6779 /* Make a place to record the compiler output file names
6780 that correspond to the input files. */
6783 i
+= lang_specific_extra_outfiles
;
6784 outfiles
= XCNEWVEC (const char *, i
);
6786 /* Record which files were specified explicitly as link input. */
6788 explicit_link_files
= XCNEWVEC (char, n_infiles
);
6790 combine_inputs
= have_o
|| flag_wpa
;
6792 for (i
= 0; (int) i
< n_infiles
; i
++)
6794 const char *name
= infiles
[i
].name
;
6795 struct compiler
*compiler
= lookup_compiler (name
,
6797 infiles
[i
].language
);
6799 if (compiler
&& !(compiler
->combinable
))
6800 combine_inputs
= false;
6802 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6803 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6804 infiles
[i
].incompiler
= compiler
;
6808 input_file_compiler
= compiler
;
6809 infiles
[i
].incompiler
= compiler
;
6813 /* Since there is no compiler for this input file, assume it is a
6815 explicit_link_files
[i
] = 1;
6816 infiles
[i
].incompiler
= NULL
;
6818 infiles
[i
].compiled
= false;
6819 infiles
[i
].preprocessed
= false;
6822 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
6823 fatal_error ("cannot specify -o with -c, -S or -E with multiple files");
6825 for (i
= 0; (int) i
< n_infiles
; i
++)
6827 int this_file_error
= 0;
6829 /* Tell do_spec what to substitute for %i. */
6831 input_file_number
= i
;
6832 set_input (infiles
[i
].name
);
6834 if (infiles
[i
].compiled
)
6837 /* Use the same thing in %o, unless cp->spec says otherwise. */
6839 outfiles
[i
] = gcc_input_filename
;
6841 /* Figure out which compiler from the file's suffix. */
6844 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6845 infiles
[i
].language
);
6847 if (input_file_compiler
)
6849 /* Ok, we found an applicable compiler. Run its spec. */
6851 if (input_file_compiler
->spec
[0] == '#')
6853 error ("%s: %s compiler not installed on this system",
6854 gcc_input_filename
, &input_file_compiler
->spec
[1]);
6855 this_file_error
= 1;
6861 free (debug_check_temp_file
[0]);
6862 debug_check_temp_file
[0] = NULL
;
6864 free (debug_check_temp_file
[1]);
6865 debug_check_temp_file
[1] = NULL
;
6868 value
= do_spec (input_file_compiler
->spec
);
6869 infiles
[i
].compiled
= true;
6871 this_file_error
= 1;
6872 else if (compare_debug
&& debug_check_temp_file
[0])
6875 inform (0, "recompiling with -fcompare-debug");
6877 compare_debug
= -compare_debug
;
6878 n_switches
= n_switches_debug_check
[1];
6879 n_switches_alloc
= n_switches_alloc_debug_check
[1];
6880 switches
= switches_debug_check
[1];
6882 value
= do_spec (input_file_compiler
->spec
);
6884 compare_debug
= -compare_debug
;
6885 n_switches
= n_switches_debug_check
[0];
6886 n_switches_alloc
= n_switches_alloc_debug_check
[0];
6887 switches
= switches_debug_check
[0];
6891 error ("during -fcompare-debug recompilation");
6892 this_file_error
= 1;
6895 gcc_assert (debug_check_temp_file
[1]
6896 && filename_cmp (debug_check_temp_file
[0],
6897 debug_check_temp_file
[1]));
6900 inform (0, "comparing final insns dumps");
6902 if (compare_files (debug_check_temp_file
))
6903 this_file_error
= 1;
6908 free (debug_check_temp_file
[0]);
6909 debug_check_temp_file
[0] = NULL
;
6911 free (debug_check_temp_file
[1]);
6912 debug_check_temp_file
[1] = NULL
;
6917 /* If this file's name does not contain a recognized suffix,
6918 record it as explicit linker input. */
6921 explicit_link_files
[i
] = 1;
6923 /* Clear the delete-on-failure queue, deleting the files in it
6924 if this compilation failed. */
6926 if (this_file_error
)
6928 delete_failure_queue ();
6931 /* If this compilation succeeded, don't delete those files later. */
6932 clear_failure_queue ();
6935 /* Reset the input file name to the first compile/object file name, for use
6936 with %b in LINK_SPEC. We use the first input file that we can find
6937 a compiler to compile it instead of using infiles.language since for
6938 languages other than C we use aliases that we then lookup later. */
6943 for (i
= 0; i
< n_infiles
; i
++)
6944 if (infiles
[i
].incompiler
6945 || (infiles
[i
].language
&& infiles
[i
].language
[0] != '*'))
6947 set_input (infiles
[i
].name
);
6954 /* Make sure INPUT_FILE_NUMBER points to first available open
6956 input_file_number
= n_infiles
;
6957 if (lang_specific_pre_link ())
6961 /* Determine if there are any linker input files. */
6962 num_linker_inputs
= 0;
6963 for (i
= 0; (int) i
< n_infiles
; i
++)
6964 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6965 num_linker_inputs
++;
6967 /* Run ld to link all the compiler output files. */
6969 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
6971 int tmp
= execution_count
;
6975 #if HAVE_LTO_PLUGIN > 0
6976 #if HAVE_LTO_PLUGIN == 2
6977 const char *fno_use_linker_plugin
= "fno-use-linker-plugin";
6979 const char *fuse_linker_plugin
= "fuse-linker-plugin";
6983 /* We'll use ld if we can't find collect2. */
6984 if (! strcmp (linker_name_spec
, "collect2"))
6986 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
6988 linker_name_spec
= "ld";
6991 #if HAVE_LTO_PLUGIN > 0
6992 #if HAVE_LTO_PLUGIN == 2
6993 if (!switch_matches (fno_use_linker_plugin
,
6994 fno_use_linker_plugin
6995 + strlen (fno_use_linker_plugin
), 0))
6997 if (switch_matches (fuse_linker_plugin
,
6999 + strlen (fuse_linker_plugin
), 0))
7002 linker_plugin_file_spec
= find_a_file (&exec_prefixes
,
7003 LTOPLUGINSONAME
, R_OK
,
7005 if (!linker_plugin_file_spec
)
7006 fatal_error ("-fuse-linker-plugin, but %s not found",
7010 lto_gcc_spec
= argv
[0];
7013 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
7015 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
7016 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
7018 if (print_subprocess_help
== 1)
7020 printf (_("\nLinker options\n==============\n\n"));
7021 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
7022 " to the linker.\n\n"));
7025 value
= do_spec (link_command_spec
);
7028 linker_was_run
= (tmp
!= execution_count
);
7031 /* If options said don't run linker,
7032 complain about input files to be given to the linker. */
7034 if (! linker_was_run
&& !seen_error ())
7035 for (i
= 0; (int) i
< n_infiles
; i
++)
7036 if (explicit_link_files
[i
]
7037 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
7038 warning (0, "%s: linker input file unused because linking not done",
7041 /* Delete some or all of the temporary files we made. */
7044 delete_failure_queue ();
7045 delete_temp_files ();
7047 if (print_help_list
)
7049 printf (("\nFor bug reporting instructions, please see:\n"));
7050 printf ("%s\n", bug_report_url
);
7054 return (signal_count
!= 0 ? 2
7055 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
7059 /* Find the proper compilation spec for the file name NAME,
7060 whose length is LENGTH. LANGUAGE is the specified language,
7061 or 0 if this file is to be passed to the linker. */
7063 static struct compiler
*
7064 lookup_compiler (const char *name
, size_t length
, const char *language
)
7066 struct compiler
*cp
;
7068 /* If this was specified by the user to be a linker input, indicate that. */
7069 if (language
!= 0 && language
[0] == '*')
7072 /* Otherwise, look for the language, if one is spec'd. */
7075 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7076 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
7079 error ("language %s not recognized", language
);
7083 /* Look for a suffix. */
7084 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7086 if (/* The suffix `-' matches only the file name `-'. */
7087 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7088 || (strlen (cp
->suffix
) < length
7089 /* See if the suffix matches the end of NAME. */
7090 && !strcmp (cp
->suffix
,
7091 name
+ length
- strlen (cp
->suffix
))
7096 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
7097 /* Look again, but case-insensitively this time. */
7099 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7101 if (/* The suffix `-' matches only the file name `-'. */
7102 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7103 || (strlen (cp
->suffix
) < length
7104 /* See if the suffix matches the end of NAME. */
7105 && ((!strcmp (cp
->suffix
,
7106 name
+ length
- strlen (cp
->suffix
))
7107 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
7108 && !strcasecmp (cp
->suffix
,
7109 name
+ length
- strlen (cp
->suffix
)))
7115 if (cp
>= compilers
)
7117 if (cp
->spec
[0] != '@')
7118 /* A non-alias entry: return it. */
7121 /* An alias entry maps a suffix to a language.
7122 Search for the language; pass 0 for NAME and LENGTH
7123 to avoid infinite recursion if language not found. */
7124 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
7130 save_string (const char *s
, int len
)
7132 char *result
= XNEWVEC (char, len
+ 1);
7134 memcpy (result
, s
, len
);
7140 pfatal_with_name (const char *name
)
7142 perror_with_name (name
);
7143 delete_temp_files ();
7148 perror_with_name (const char *name
)
7150 error ("%s: %m", name
);
7154 validate_switches_from_spec (const char *spec
, bool user
)
7156 const char *p
= spec
;
7159 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
7160 /* We have a switch spec. */
7161 p
= validate_switches (p
+ 1, user
);
7165 validate_all_switches (void)
7167 struct compiler
*comp
;
7168 struct spec_list
*spec
;
7170 for (comp
= compilers
; comp
->spec
; comp
++)
7171 validate_switches_from_spec (comp
->spec
, false);
7173 /* Look through the linked list of specs read from the specs file. */
7174 for (spec
= specs
; spec
; spec
= spec
->next
)
7175 validate_switches_from_spec (*spec
->ptr_spec
, spec
->user_p
);
7177 validate_switches_from_spec (link_command_spec
, false);
7180 /* Look at the switch-name that comes after START
7181 and mark as valid all supplied switches that match it. */
7184 validate_switches (const char *start
, bool user_spec
)
7186 const char *p
= start
;
7190 bool suffix
= false;
7191 bool starred
= false;
7193 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7202 if (*p
== '.' || *p
== ',')
7206 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7207 || *p
== ',' || *p
== '.' || *p
== '@')
7212 starred
= true, p
++;
7218 /* Mark all matching switches as valid. */
7219 for (i
= 0; i
< n_switches
; i
++)
7220 if (!strncmp (switches
[i
].part1
, atom
, len
)
7221 && (starred
|| switches
[i
].part1
[len
] == '\0')
7222 && (switches
[i
].known
|| user_spec
))
7223 switches
[i
].validated
= true;
7227 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
7230 if (*p
&& p
[-1] == ':')
7232 while (*p
&& *p
!= ';' && *p
!= '}')
7237 if (*p
== '{' || *p
== '<')
7238 p
= validate_switches (p
+1, user_spec
);
7239 else if (p
[0] == 'W' && p
[1] == '{')
7240 p
= validate_switches (p
+2, user_spec
);
7247 if (*p
&& p
[-1] == ';')
7261 static struct mdswitchstr
*mdswitches
;
7262 static int n_mdswitches
;
7264 /* Check whether a particular argument was used. The first time we
7265 canonicalize the switches to keep only the ones we care about. */
7268 used_arg (const char *p
, int len
)
7273 const char *replace
;
7278 static struct mswitchstr
*mswitches
;
7279 static int n_mswitches
;
7284 struct mswitchstr
*matches
;
7288 /* Break multilib_matches into the component strings of string
7289 and replacement string. */
7290 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7295 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
7297 q
= multilib_matches
;
7306 fatal_error ("multilib spec %qs is invalid",
7311 matches
[i
].len
= q
- matches
[i
].str
;
7313 matches
[i
].replace
= ++q
;
7314 while (*q
!= ';' && *q
!= '\0')
7317 goto invalid_matches
;
7320 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7326 /* Now build a list of the replacement string for switches that we care
7327 about. Make sure we allocate at least one entry. This prevents
7328 xmalloc from calling fatal, and prevents us from re-executing this
7331 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7332 for (i
= 0; i
< n_switches
; i
++)
7333 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
7335 int xlen
= strlen (switches
[i
].part1
);
7336 for (j
= 0; j
< cnt
; j
++)
7337 if (xlen
== matches
[j
].len
7338 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7340 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7341 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7342 mswitches
[n_mswitches
].replace
= (char *) 0;
7343 mswitches
[n_mswitches
].rep_len
= 0;
7349 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7350 on the command line nor any options mutually incompatible with
7352 for (i
= 0; i
< n_mdswitches
; i
++)
7356 for (q
= multilib_options
; *q
!= '\0'; q
++)
7362 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7363 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7365 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7372 if (*q
!= ' ' && *q
!= '\0')
7374 while (*r
!= ' ' && *r
!= '\0')
7377 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7380 if (used_arg (r
, q
- r
))
7385 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7386 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7387 mswitches
[n_mswitches
].replace
= (char *) 0;
7388 mswitches
[n_mswitches
].rep_len
= 0;
7401 for (i
= 0; i
< n_mswitches
; i
++)
7402 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7409 default_arg (const char *p
, int len
)
7413 for (i
= 0; i
< n_mdswitches
; i
++)
7414 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7420 /* Work out the subdirectory to use based on the options. The format of
7421 multilib_select is a list of elements. Each element is a subdirectory
7422 name followed by a list of options followed by a semicolon. The format
7423 of multilib_exclusions is the same, but without the preceding
7424 directory. First gcc will check the exclusions, if none of the options
7425 beginning with an exclamation point are present, and all of the other
7426 options are present, then we will ignore this completely. Passing
7427 that, gcc will consider each multilib_select in turn using the same
7428 rules for matching the options. If a match is found, that subdirectory
7430 A subdirectory name is optionally followed by a colon and the corresponding
7434 set_multilib_dir (void)
7437 unsigned int this_path_len
;
7438 const char *this_path
, *this_arg
;
7439 const char *start
, *end
;
7441 int ok
, ndfltok
, first
;
7444 start
= multilib_defaults
;
7445 while (*start
== ' ' || *start
== '\t')
7447 while (*start
!= '\0')
7450 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7452 while (*start
== ' ' || *start
== '\t')
7460 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
7461 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7463 while (*start
== ' ' || *start
== '\t')
7469 for (end
= start
+ 1;
7470 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7473 obstack_grow (&multilib_obstack
, start
, end
- start
);
7474 obstack_1grow (&multilib_obstack
, 0);
7475 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
7476 mdswitches
[i
++].len
= end
- start
;
7483 p
= multilib_exclusions
;
7486 /* Ignore newlines. */
7493 /* Check the arguments. */
7500 fatal_error ("multilib exclusions %qs is invalid",
7501 multilib_exclusions
);
7511 while (*p
!= ' ' && *p
!= ';')
7514 goto invalid_exclusions
;
7518 if (*this_arg
!= '!')
7526 ok
= used_arg (this_arg
, p
- this_arg
);
7541 p
= multilib_select
;
7544 /* Ignore newlines. */
7551 /* Get the initial path. */
7558 fatal_error ("multilib select %qs is invalid",
7563 this_path_len
= p
- this_path
;
7565 /* Check the arguments. */
7572 goto invalid_select
;
7581 while (*p
!= ' ' && *p
!= ';')
7584 goto invalid_select
;
7588 if (*this_arg
!= '!')
7596 /* If this is a default argument, we can just ignore it.
7597 This is true even if this_arg begins with '!'. Beginning
7598 with '!' does not mean that this argument is necessarily
7599 inappropriate for this library: it merely means that
7600 there is a more specific library which uses this
7601 argument. If this argument is a default, we need not
7602 consider that more specific library. */
7603 ok
= used_arg (this_arg
, p
- this_arg
);
7610 if (default_arg (this_arg
, p
- this_arg
))
7619 if (this_path_len
!= 1
7620 || this_path
[0] != '.')
7622 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
7625 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7626 new_multilib_dir
[this_path_len
] = '\0';
7627 q
= strchr (new_multilib_dir
, ':');
7630 multilib_dir
= new_multilib_dir
;
7637 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7639 while (q
< end
&& *q
!= ':')
7643 const char *q2
= q
+ 1, *ml_end
= end
;
7644 char *new_multilib_os_dir
;
7646 while (q2
< end
&& *q2
!= ':')
7650 new_multilib_os_dir
= XNEWVEC (char, ml_end
- q
);
7651 memcpy (new_multilib_os_dir
, q
+ 1, ml_end
- q
- 1);
7652 new_multilib_os_dir
[ml_end
- q
- 1] = '\0';
7653 multilib_os_dir
= *new_multilib_os_dir
? new_multilib_os_dir
: ".";
7655 if (q2
< end
&& *q2
== ':')
7657 char *new_multiarch_dir
= XNEWVEC (char, end
- q2
);
7658 memcpy (new_multiarch_dir
, q2
+ 1, end
- q2
- 1);
7659 new_multiarch_dir
[end
- q2
- 1] = '\0';
7660 multiarch_dir
= new_multiarch_dir
;
7669 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7670 && strcmp (multilib_os_dir
, ".") == 0)
7672 free (CONST_CAST (char *, multilib_os_dir
));
7673 multilib_os_dir
= NULL
;
7675 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7676 multilib_os_dir
= multilib_dir
;
7679 /* Print out the multiple library subdirectory selection
7680 information. This prints out a series of lines. Each line looks
7681 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7682 required. Only the desired options are printed out, the negative
7683 matches. The options are print without a leading dash. There are
7684 no spaces to make it easy to use the information in the shell.
7685 Each subdirectory is printed only once. This assumes the ordering
7686 generated by the genmultilib script. Also, we leave out ones that match
7690 print_multilib_info (void)
7692 const char *p
= multilib_select
;
7693 const char *last_path
= 0, *this_path
;
7695 unsigned int last_path_len
= 0;
7700 /* Ignore newlines. */
7707 /* Get the initial path. */
7714 fatal_error ("multilib select %qs is invalid", multilib_select
);
7720 /* When --disable-multilib was used but target defines
7721 MULTILIB_OSDIRNAMES, entries starting with .: (and not starting
7722 with .:: for multiarch configurations) are there just to find
7723 multilib_os_dir, so skip them from output. */
7724 if (this_path
[0] == '.' && this_path
[1] == ':' && this_path
[2] != ':')
7727 /* Check for matches with the multilib_exclusions. We don't bother
7728 with the '!' in either list. If any of the exclusion rules match
7729 all of its options with the select rule, we skip it. */
7731 const char *e
= multilib_exclusions
;
7732 const char *this_arg
;
7737 /* Ignore newlines. */
7744 /* Check the arguments. */
7753 fatal_error ("multilib exclusion %qs is invalid",
7754 multilib_exclusions
);
7765 while (*e
!= ' ' && *e
!= ';')
7768 goto invalid_exclusion
;
7776 int len
= e
- this_arg
;
7779 goto invalid_select
;
7783 while (*q
!= ' ' && *q
!= ';')
7786 goto invalid_select
;
7790 if (! strncmp (arg
, this_arg
,
7791 (len
< q
- arg
) ? q
- arg
: len
)
7792 || default_arg (this_arg
, e
- this_arg
))
7822 /* If this is a duplicate, skip it. */
7823 skip
= (last_path
!= 0
7824 && (unsigned int) (p
- this_path
) == last_path_len
7825 && ! filename_ncmp (last_path
, this_path
, last_path_len
));
7827 last_path
= this_path
;
7828 last_path_len
= p
- this_path
;
7831 /* If this directory requires any default arguments, we can skip
7832 it. We will already have printed a directory identical to
7833 this one which does not require that default argument. */
7844 goto invalid_select
;
7851 while (*q
!= ' ' && *q
!= ';')
7854 goto invalid_select
;
7859 && default_arg (arg
, q
- arg
))
7874 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7885 goto invalid_select
;
7893 use_arg
= *p
!= '!';
7898 while (*p
!= ' ' && *p
!= ';')
7901 goto invalid_select
;
7913 /* If there are extra options, print them now. */
7914 if (multilib_extra
&& *multilib_extra
)
7916 int print_at
= TRUE
;
7919 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7940 /* getenv built-in spec function.
7942 Returns the value of the environment variable given by its first
7943 argument, concatenated with the second argument. If the
7944 environment variable is not defined, a fatal error is issued. */
7947 getenv_spec_function (int argc
, const char **argv
)
7957 value
= getenv (argv
[0]);
7959 fatal_error ("environment variable %qs not defined", argv
[0]);
7961 /* We have to escape every character of the environment variable so
7962 they are not interpreted as active spec characters. A
7963 particularly painful case is when we are reading a variable
7964 holding a windows path complete with \ separators. */
7965 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
7966 result
= XNEWVAR (char, len
);
7967 for (ptr
= result
; *value
; ptr
+= 2)
7973 strcpy (ptr
, argv
[1]);
7978 /* if-exists built-in spec function.
7980 Checks to see if the file specified by the absolute pathname in
7981 ARGS exists. Returns that pathname if found.
7983 The usual use for this function is to check for a library file
7984 (whose name has been expanded with %s). */
7987 if_exists_spec_function (int argc
, const char **argv
)
7989 /* Must have only one argument. */
7990 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7996 /* if-exists-else built-in spec function.
7998 This is like if-exists, but takes an additional argument which
7999 is returned if the first argument does not exist. */
8002 if_exists_else_spec_function (int argc
, const char **argv
)
8004 /* Must have exactly two arguments. */
8008 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8014 /* replace-outfile built-in spec function.
8016 This looks for the first argument in the outfiles array's name and
8017 replaces it with the second argument. */
8020 replace_outfile_spec_function (int argc
, const char **argv
)
8023 /* Must have exactly two arguments. */
8027 for (i
= 0; i
< n_infiles
; i
++)
8029 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
8030 outfiles
[i
] = xstrdup (argv
[1]);
8035 /* remove-outfile built-in spec function.
8037 * This looks for the first argument in the outfiles array's name and
8041 remove_outfile_spec_function (int argc
, const char **argv
)
8044 /* Must have exactly one argument. */
8048 for (i
= 0; i
< n_infiles
; i
++)
8050 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
8056 /* Given two version numbers, compares the two numbers.
8057 A version number must match the regular expression
8058 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
8061 compare_version_strings (const char *v1
, const char *v2
)
8066 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
8067 REG_EXTENDED
| REG_NOSUB
) != 0)
8069 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
8070 if (rresult
== REG_NOMATCH
)
8071 fatal_error ("invalid version number %qs", v1
);
8072 else if (rresult
!= 0)
8074 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
8075 if (rresult
== REG_NOMATCH
)
8076 fatal_error ("invalid version number %qs", v2
);
8077 else if (rresult
!= 0)
8080 return strverscmp (v1
, v2
);
8084 /* version_compare built-in spec function.
8086 This takes an argument of the following form:
8088 <comparison-op> <arg1> [<arg2>] <switch> <result>
8090 and produces "result" if the comparison evaluates to true,
8091 and nothing if it doesn't.
8093 The supported <comparison-op> values are:
8095 >= true if switch is a later (or same) version than arg1
8097 < true if switch is an earlier version than arg1
8099 >< true if switch is arg1 or later, and earlier than arg2
8100 <> true if switch is earlier than arg1 or is arg2 or later
8102 If the switch is not present, the condition is false unless
8103 the first character of the <comparison-op> is '!'.
8106 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
8107 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
8110 version_compare_spec_function (int argc
, const char **argv
)
8114 const char *switch_value
= NULL
;
8119 fatal_error ("too few arguments to %%:version-compare");
8120 if (argv
[0][0] == '\0')
8122 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
8124 if (argc
!= nargs
+ 3)
8125 fatal_error ("too many arguments to %%:version-compare");
8127 switch_len
= strlen (argv
[nargs
+ 1]);
8128 for (i
= 0; i
< n_switches
; i
++)
8129 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
8130 && check_live_switch (i
, switch_len
))
8131 switch_value
= switches
[i
].part1
+ switch_len
;
8133 if (switch_value
== NULL
)
8137 comp1
= compare_version_strings (switch_value
, argv
[1]);
8139 comp2
= compare_version_strings (switch_value
, argv
[2]);
8141 comp2
= -1; /* This value unused. */
8144 switch (argv
[0][0] << 8 | argv
[0][1])
8146 case '>' << 8 | '=':
8147 result
= comp1
>= 0;
8149 case '!' << 8 | '<':
8150 result
= comp1
>= 0 || switch_value
== NULL
;
8155 case '!' << 8 | '>':
8156 result
= comp1
< 0 || switch_value
== NULL
;
8158 case '>' << 8 | '<':
8159 result
= comp1
>= 0 && comp2
< 0;
8161 case '<' << 8 | '>':
8162 result
= comp1
< 0 || comp2
>= 0;
8166 fatal_error ("unknown operator %qs in %%:version-compare", argv
[0]);
8171 return argv
[nargs
+ 2];
8174 /* %:include builtin spec function. This differs from %include in that it
8175 can be nested inside a spec, and thus be conditionalized. It takes
8176 one argument, the filename, and looks for it in the startfile path.
8177 The result is always NULL, i.e. an empty expansion. */
8180 include_spec_function (int argc
, const char **argv
)
8187 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
8188 read_specs (file
? file
: argv
[0], false, false);
8193 /* %:find-file spec function. This function replaces its argument by
8194 the file found through find_file, that is the -print-file-name gcc
8197 find_file_spec_function (int argc
, const char **argv
)
8204 file
= find_file (argv
[0]);
8209 /* %:find-plugindir spec function. This function replaces its argument
8210 by the -iplugindir=<dir> option. `dir' is found through find_file, that
8211 is the -print-file-name gcc program option. */
8213 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
8220 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
8225 /* %:print-asm-header spec function. Print a banner to say that the
8226 following output is from the assembler. */
8229 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
8230 const char **argv ATTRIBUTE_UNUSED
)
8232 printf (_("Assembler options\n=================\n\n"));
8233 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
8238 /* Get a random number for -frandom-seed */
8240 static unsigned HOST_WIDE_INT
8241 get_random_number (void)
8243 unsigned HOST_WIDE_INT ret
= 0;
8246 fd
= open ("/dev/urandom", O_RDONLY
);
8249 read (fd
, &ret
, sizeof (HOST_WIDE_INT
));
8255 /* Get some more or less random data. */
8256 #ifdef HAVE_GETTIMEOFDAY
8260 gettimeofday (&tv
, NULL
);
8261 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
8265 time_t now
= time (NULL
);
8267 if (now
!= (time_t)-1)
8268 ret
= (unsigned) now
;
8272 return ret
^ getpid();
8275 /* %:compare-debug-dump-opt spec function. Save the last argument,
8276 expected to be the last -fdump-final-insns option, or generate a
8280 compare_debug_dump_opt_spec_function (int arg
,
8281 const char **argv ATTRIBUTE_UNUSED
)
8286 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
8289 fatal_error ("too many arguments to %%:compare-debug-dump-opt");
8291 do_spec_2 ("%{fdump-final-insns=*:%*}");
8292 do_spec_1 (" ", 0, NULL
);
8294 if (argbuf
.length () > 0
8295 && strcmp (argv
[argbuf
.length () - 1], "."))
8300 name
= xstrdup (argv
[argbuf
.length () - 1]);
8305 const char *ext
= NULL
;
8307 if (argbuf
.length () > 0)
8309 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
8312 else if (!compare_debug
)
8315 do_spec_2 ("%g.gkd");
8317 do_spec_1 (" ", 0, NULL
);
8319 gcc_assert (argbuf
.length () > 0);
8321 name
= concat (argbuf
.last (), ext
, NULL
);
8323 ret
= concat ("-fdump-final-insns=", name
, NULL
);
8326 which
= compare_debug
< 0;
8327 debug_check_temp_file
[which
] = name
;
8331 unsigned HOST_WIDE_INT value
= get_random_number ();
8333 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
8339 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
8350 static const char *debug_auxbase_opt
;
8352 /* %:compare-debug-self-opt spec function. Expands to the options
8353 that are to be passed in the second compilation of
8357 compare_debug_self_opt_spec_function (int arg
,
8358 const char **argv ATTRIBUTE_UNUSED
)
8361 fatal_error ("too many arguments to %%:compare-debug-self-opt");
8363 if (compare_debug
>= 0)
8366 do_spec_2 ("%{c|S:%{o*:%*}}");
8367 do_spec_1 (" ", 0, NULL
);
8369 if (argbuf
.length () > 0)
8370 debug_auxbase_opt
= concat ("-auxbase-strip ",
8374 debug_auxbase_opt
= NULL
;
8377 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
8378 %<fdump-final-insns=* -w -S -o %j \
8379 %{!fcompare-debug-second:-fcompare-debug-second} \
8380 ", compare_debug_opt
, NULL
);
8383 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
8384 options that are to be passed in the second compilation of
8385 compare-debug. It expects, as an argument, the basename of the
8386 current input file name, with the .gk suffix appended to it. */
8389 compare_debug_auxbase_opt_spec_function (int arg
,
8396 fatal_error ("too few arguments to %%:compare-debug-auxbase-opt");
8399 fatal_error ("too many arguments to %%:compare-debug-auxbase-opt");
8401 if (compare_debug
>= 0)
8404 len
= strlen (argv
[0]);
8405 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
8406 fatal_error ("argument to %%:compare-debug-auxbase-opt "
8407 "does not end in .gk");
8409 if (debug_auxbase_opt
)
8410 return debug_auxbase_opt
;
8412 #define OPT "-auxbase "
8415 name
= (char*) xmalloc (sizeof (OPT
) + len
);
8416 memcpy (name
, OPT
, sizeof (OPT
) - 1);
8417 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
8418 name
[sizeof (OPT
) - 1 + len
] = '\0';
8425 /* %:pass-through-libs spec function. Finds all -l options and input
8426 file names in the lib spec passed to it, and makes a list of them
8427 prepended with the plugin option to cause them to be passed through
8428 to the final link after all the new object files have been added. */
8431 pass_through_libs_spec_func (int argc
, const char **argv
)
8433 char *prepended
= xstrdup (" ");
8435 /* Shlemiel the painter's algorithm. Innately horrible, but at least
8436 we know that there will never be more than a handful of strings to
8437 concat, and it's only once per run, so it's not worth optimising. */
8438 for (n
= 0; n
< argc
; n
++)
8440 char *old
= prepended
;
8441 /* Anything that isn't an option is a full path to an output
8442 file; pass it through if it ends in '.a'. Among options,
8444 if (argv
[n
][0] == '-' && argv
[n
][1] == 'l')
8446 const char *lopt
= argv
[n
] + 2;
8447 /* Handle both joined and non-joined -l options. If for any
8448 reason there's a trailing -l with no joined or following
8449 arg just discard it. */
8450 if (!*lopt
&& ++n
>= argc
)
8454 prepended
= concat (prepended
, "-plugin-opt=-pass-through=-l",
8457 else if (!strcmp (".a", argv
[n
] + strlen (argv
[n
]) - 2))
8459 prepended
= concat (prepended
, "-plugin-opt=-pass-through=",
8460 argv
[n
], " ", NULL
);
8462 if (prepended
!= old
)
8468 /* %:replace-extension spec function. Replaces the extension of the
8469 first argument with the second argument. */
8472 replace_extension_spec_func (int argc
, const char **argv
)
8480 fatal_error ("too few arguments to %%:replace-extension");
8482 name
= xstrdup (argv
[0]);
8484 for (i
= strlen(name
) - 1; i
>= 0; i
--)
8485 if (IS_DIR_SEPARATOR (name
[i
]))
8488 p
= strrchr (name
+ i
+ 1, '.');
8492 result
= concat (name
, argv
[1], NULL
);