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 */
39 #if ! defined( SIGCHLD ) && defined( SIGCLD )
40 # define SIGCHLD SIGCLD
47 #include "diagnostic.h"
52 # include <sys/mman.h>
54 /* This is on Solaris. */
55 # include <sys/types.h>
60 # define MAP_FAILED ((void *)-1)
63 /* By default there is no special suffix for target executables. */
64 /* FIXME: when autoconf is fixed, remove the host check - dj */
65 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
66 #define HAVE_TARGET_EXECUTABLE_SUFFIX
69 /* By default there is no special suffix for host executables. */
70 #ifdef HOST_EXECUTABLE_SUFFIX
71 #define HAVE_HOST_EXECUTABLE_SUFFIX
73 #define HOST_EXECUTABLE_SUFFIX ""
76 /* By default, the suffix for target object files is ".o". */
77 #ifdef TARGET_OBJECT_SUFFIX
78 #define HAVE_TARGET_OBJECT_SUFFIX
80 #define TARGET_OBJECT_SUFFIX ".o"
83 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
85 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
86 #ifndef LIBRARY_PATH_ENV
87 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
91 #define kill(p,s) raise(s)
94 /* If a stage of compilation returns an exit status >= 1,
95 compilation of that file ceases. */
97 #define MIN_FATAL_STATUS 1
99 /* Flag set by cppspec.c to 1. */
102 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
103 static bool at_file_supplied
;
105 /* Definition of string containing the arguments given to configure. */
106 #include "configargs.h"
108 /* Flag saying to print the command line options understood by gcc and its
111 static int print_help_list
;
113 /* Flag saying to print the version of gcc and its sub-processes. */
115 static int print_version
;
117 /* Flag indicating whether we should print the command and arguments */
119 static int verbose_flag
;
121 /* Flag indicating whether we should ONLY print the command and
122 arguments (like verbose_flag) without executing the command.
123 Displayed arguments are quoted so that the generated command
124 line is suitable for execution. This is intended for use in
125 shell scripts to capture the driver-generated command line. */
126 static int verbose_only_flag
;
128 /* Flag indicating how to print command line options of sub-processes. */
130 static int print_subprocess_help
;
132 /* Whether we should report subprocess execution times to a file. */
134 FILE *report_times_to_file
= NULL
;
136 /* Nonzero means place this string before uses of /, so that include
137 and library files can be found in an alternate location. */
139 #ifdef TARGET_SYSTEM_ROOT
140 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
142 static const char *target_system_root
= 0;
145 /* Nonzero means pass the updated target_system_root to the compiler. */
147 static int target_system_root_changed
;
149 /* Nonzero means append this string to target_system_root. */
151 static const char *target_sysroot_suffix
= 0;
153 /* Nonzero means append this string to target_system_root for headers. */
155 static const char *target_sysroot_hdrs_suffix
= 0;
157 /* Nonzero means write "temp" files in source directory
158 and use the source file's name in them, and don't delete them. */
160 static enum save_temps
{
161 SAVE_TEMPS_NONE
, /* no -save-temps */
162 SAVE_TEMPS_CWD
, /* -save-temps in current directory */
163 SAVE_TEMPS_OBJ
/* -save-temps in object directory */
166 /* Output file to use to get the object directory for -save-temps=obj */
167 static char *save_temps_prefix
= 0;
168 static size_t save_temps_length
= 0;
170 /* The compiler version. */
172 static const char *compiler_version
;
174 /* The target version. */
176 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
178 /* The target machine. */
180 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
182 /* Nonzero if cross-compiling.
183 When -b is used, the value comes from the `specs' file. */
185 #ifdef CROSS_DIRECTORY_STRUCTURE
186 static const char *cross_compile
= "1";
188 static const char *cross_compile
= "0";
191 /* Greatest exit code of sub-processes that has been encountered up to
193 static int greatest_status
= 1;
195 /* This is the obstack which we use to allocate many strings. */
197 static struct obstack obstack
;
199 /* This is the obstack to build an environment variable to pass to
200 collect2 that describes all of the relevant switches of what to
201 pass the compiler in building the list of pointers to constructors
204 static struct obstack collect_obstack
;
206 /* Forward declaration for prototypes. */
210 static void init_spec (void);
211 static void store_arg (const char *, int, int);
212 static void insert_wrapper (const char *);
213 static char *load_specs (const char *);
214 static void read_specs (const char *, int);
215 static void set_spec (const char *, const char *);
216 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
217 static char *build_search_list (const struct path_prefix
*, const char *,
219 static void xputenv (const char *);
220 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
222 static int access_check (const char *, int);
223 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
224 static void add_prefix (struct path_prefix
*, const char *, const char *,
226 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
227 const char *, int, int, int);
228 static char *skip_whitespace (char *);
229 static void delete_if_ordinary (const char *);
230 static void delete_temp_files (void);
231 static void delete_failure_queue (void);
232 static void clear_failure_queue (void);
233 static int check_live_switch (int, int);
234 static const char *handle_braces (const char *);
235 static inline bool input_suffix_matches (const char *, const char *);
236 static inline bool switch_matches (const char *, const char *, int);
237 static inline void mark_matching_switches (const char *, const char *, int);
238 static inline void process_marked_switches (void);
239 static const char *process_brace_body (const char *, const char *, const char *, int, int);
240 static const struct spec_function
*lookup_spec_function (const char *);
241 static const char *eval_spec_function (const char *, const char *);
242 static const char *handle_spec_function (const char *);
243 static char *save_string (const char *, int);
244 static void set_collect_gcc_options (void);
245 static int do_spec_1 (const char *, int, const char *);
246 static int do_spec_2 (const char *);
247 static void do_option_spec (const char *, const char *);
248 static void do_self_spec (const char *);
249 static const char *find_file (const char *);
250 static int is_directory (const char *, bool);
251 static const char *validate_switches (const char *);
252 static void validate_all_switches (void);
253 static inline void validate_switches_from_spec (const char *);
254 static void give_switch (int, int);
255 static int used_arg (const char *, int);
256 static int default_arg (const char *, int);
257 static void set_multilib_dir (void);
258 static void print_multilib_info (void);
259 static void perror_with_name (const char *);
260 static void display_help (void);
261 static void add_preprocessor_option (const char *, int);
262 static void add_assembler_option (const char *, int);
263 static void add_linker_option (const char *, int);
264 static void process_command (unsigned int, struct cl_decoded_option
*);
265 static int execute (void);
266 static void alloc_args (void);
267 static void clear_args (void);
268 static void fatal_signal (int);
269 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
270 static void init_gcc_specs (struct obstack
*, const char *, const char *,
273 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
274 static const char *convert_filename (const char *, int, int);
277 static const char *getenv_spec_function (int, const char **);
278 static const char *if_exists_spec_function (int, const char **);
279 static const char *if_exists_else_spec_function (int, const char **);
280 static const char *replace_outfile_spec_function (int, const char **);
281 static const char *remove_outfile_spec_function (int, const char **);
282 static const char *version_compare_spec_function (int, const char **);
283 static const char *include_spec_function (int, const char **);
284 static const char *find_file_spec_function (int, const char **);
285 static const char *find_plugindir_spec_function (int, const char **);
286 static const char *print_asm_header_spec_function (int, const char **);
287 static const char *compare_debug_dump_opt_spec_function (int, const char **);
288 static const char *compare_debug_self_opt_spec_function (int, const char **);
289 static const char *compare_debug_auxbase_opt_spec_function (int, const char **);
291 /* The Specs Language
293 Specs are strings containing lines, each of which (if not blank)
294 is made up of a program name, and arguments separated by spaces.
295 The program name must be exact and start from root, since no path
296 is searched and it is unreliable to depend on the current working directory.
297 Redirection of input or output is not supported; the subprograms must
298 accept filenames saying what files to read and write.
300 In addition, the specs can contain %-sequences to substitute variable text
301 or for conditional text. Here is a table of all defined %-sequences.
302 Note that spaces are not generated automatically around the results of
303 expanding these sequences; therefore, you can concatenate them together
304 or with constant text in a single argument.
306 %% substitute one % into the program name or argument.
307 %i substitute the name of the input file being processed.
308 %b substitute the basename of the input file being processed.
309 This is the substring up to (and not including) the last period
310 and not including the directory unless -save-temps was specified
311 to put temporaries in a different location.
312 %B same as %b, but include the file suffix (text after the last period).
314 substitute a file name that has suffix SUFFIX and is chosen
315 once per compilation, and mark the argument a la %d. To reduce
316 exposure to denial-of-service attacks, the file name is now
317 chosen in a way that is hard to predict even when previously
318 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
319 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
320 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
321 had been pre-processed. Previously, %g was simply substituted
322 with a file name chosen once per compilation, without regard
323 to any appended suffix (which was therefore treated just like
324 ordinary text), making such attacks more likely to succeed.
326 like %g, but if -pipe is in effect, expands simply to "-".
328 like %g, but if -pipe is in effect, expands to nothing. (We have both
329 %| and %m to accommodate differences between system assemblers; see
330 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
332 like %g, but generates a new temporary file name even if %uSUFFIX
335 substitutes the last file name generated with %uSUFFIX, generating a
336 new one if there is no such last file name. In the absence of any
337 %uSUFFIX, this is just like %gSUFFIX, except they don't share
338 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
339 would involve the generation of two distinct file names, one
340 for each `%g.s' and another for each `%U.s'. Previously, %U was
341 simply substituted with a file name chosen for the previous %u,
342 without regard to any appended suffix.
344 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
345 writable, and if save-temps is off; otherwise, substitute the name
346 of a temporary file, just like %u. This temporary file is not
347 meant for communication between processes, but rather as a junk
350 substitutes .SUFFIX for the suffixes of a matched switch's args when
351 it is subsequently output with %*. SUFFIX is terminated by the next
353 %d marks the argument containing or following the %d as a
354 temporary file name, so that that file will be deleted if GCC exits
355 successfully. Unlike %g, this contributes no text to the argument.
356 %w marks the argument containing or following the %w as the
357 "output file" of this compilation. This puts the argument
358 into the sequence of arguments that %o will substitute later.
359 %V indicates that this compilation produces no "output file".
361 like %{...} but mark last argument supplied within
362 as a file to be deleted on failure.
363 %o substitutes the names of all the output files, with spaces
364 automatically placed around them. You should write spaces
365 around the %o as well or the results are undefined.
366 %o is for use in the specs for running the linker.
367 Input files whose names have no recognized suffix are not compiled
368 at all, but they are included among the output files, so they will
370 %O substitutes the suffix for object files. Note that this is
371 handled specially when it immediately follows %g, %u, or %U
372 (with or without a suffix argument) because of the need for
373 those to form complete file names. The handling is such that
374 %O is treated exactly as if it had already been substituted,
375 except that %g, %u, and %U do not currently support additional
376 SUFFIX characters following %O as they would following, for
378 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
379 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
380 and -B options) and -imultilib as necessary.
381 %s current argument is the name of a library or startup file of some sort.
382 Search for that file in a standard list of directories
383 and substitute the full name found.
384 %eSTR Print STR as an error message. STR is terminated by a newline.
385 Use this when inconsistent options are detected.
386 %nSTR Print STR as a notice. STR is terminated by a newline.
387 %x{OPTION} Accumulate an option for %X.
388 %X Output the accumulated linker options specified by compilations.
389 %Y Output the accumulated assembler options specified by compilations.
390 %Z Output the accumulated preprocessor options specified by compilations.
391 %a process ASM_SPEC as a spec.
392 This allows config.h to specify part of the spec for running as.
393 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
394 used here. This can be used to run a post-processor after the
395 assembler has done its job.
396 %D Dump out a -L option for each directory in startfile_prefixes.
397 If multilib_dir is set, extra entries are generated with it affixed.
398 %l process LINK_SPEC as a spec.
399 %L process LIB_SPEC as a spec.
400 %G process LIBGCC_SPEC as a spec.
401 %R Output the concatenation of target_system_root and
402 target_sysroot_suffix.
403 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
404 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
405 %C process CPP_SPEC as a spec.
406 %1 process CC1_SPEC as a spec.
407 %2 process CC1PLUS_SPEC as a spec.
408 %* substitute the variable part of a matched option. (See below.)
409 Note that each comma in the substituted string is replaced by
411 %<S remove all occurrences of -S from the command line.
412 Note - this command is position dependent. % commands in the
413 spec string before this one will see -S, % commands in the
414 spec string after this one will not.
415 %<S* remove all occurrences of all switches beginning with -S from the
418 Call the named function FUNCTION, passing it ARGS. ARGS is
419 first processed as a nested spec string, then split into an
420 argument vector in the usual fashion. The function returns
421 a string which is processed as if it had appeared literally
422 as part of the current spec.
423 %{S} substitutes the -S switch, if that switch was given to GCC.
424 If that switch was not specified, this substitutes nothing.
425 Here S is a metasyntactic variable.
426 %{S*} substitutes all the switches specified to GCC whose names start
427 with -S. This is used for -o, -I, etc; switches that take
428 arguments. GCC considers `-o foo' as being one switch whose
429 name starts with `o'. %{o*} would substitute this text,
430 including the space; thus, two arguments would be generated.
431 %{S*&T*} likewise, but preserve order of S and T options (the order
432 of S and T in the spec is not significant). Can be any number
433 of ampersand-separated variables; for each the wild card is
434 optional. Useful for CPP as %{D*&U*&A*}.
436 %{S:X} substitutes X, if the -S switch was given to GCC.
437 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
438 %{S*:X} substitutes X if one or more switches whose names start
439 with -S was given to GCC. Normally X is substituted only
440 once, no matter how many such switches appeared. However,
441 if %* appears somewhere in X, then X will be substituted
442 once for each matching switch, with the %* replaced by the
443 part of that switch that matched the '*'.
444 %{.S:X} substitutes X, if processing a file with suffix S.
445 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
446 %{,S:X} substitutes X, if processing a file which will use spec S.
447 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
449 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
450 combined with '!', '.', ',', and '*' as above binding stronger
452 If %* appears in X, all of the alternatives must be starred, and
453 only the first matching alternative is substituted.
454 %{S:X; if S was given to GCC, substitutes X;
455 T:Y; else if T was given to GCC, substitutes Y;
456 :D} else substitutes D. There can be as many clauses as you need.
457 This may be combined with '.', '!', ',', '|', and '*' as above.
459 %(Spec) processes a specification defined in a specs file as *Spec:
460 %[Spec] as above, but put __ around -D arguments
462 The conditional text X in a %{S:X} or similar construct may contain
463 other nested % constructs or spaces, or even newlines. They are
464 processed as usual, as described above. Trailing white space in X is
465 ignored. White space may also appear anywhere on the left side of the
466 colon in these constructs, except between . or * and the corresponding
469 The -O, -f, -m, and -W switches are handled specifically in these
470 constructs. If another value of -O or the negated form of a -f, -m, or
471 -W switch is found later in the command line, the earlier switch
472 value is ignored, except with {S*} where S is just one letter; this
473 passes all matching options.
475 The character | at the beginning of the predicate text is used to indicate
476 that a command should be piped to the following command, but only if -pipe
479 Note that it is built into GCC which switches take arguments and which
480 do not. You might think it would be useful to generalize this to
481 allow each compiler's spec to say which switches take arguments. But
482 this cannot be done in a consistent fashion. GCC cannot even decide
483 which input files have been specified without knowing which switches
484 take arguments, and it must know which input files to compile in order
485 to tell which compilers to run.
487 GCC also knows implicitly that arguments starting in `-l' are to be
488 treated as compiler output files, and passed to the linker in their
489 proper position among the other output files. */
491 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
493 /* config.h can define ASM_SPEC to provide extra args to the assembler
494 or extra switch-translations. */
499 /* config.h can define ASM_FINAL_SPEC to run a post processor after
500 the assembler has run. */
501 #ifndef ASM_FINAL_SPEC
502 #define ASM_FINAL_SPEC ""
505 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
506 or extra switch-translations. */
511 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
512 or extra switch-translations. */
517 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
518 or extra switch-translations. */
520 #define CC1PLUS_SPEC ""
523 /* config.h can define LINK_SPEC to provide extra args to the linker
524 or extra switch-translations. */
529 /* config.h can define LIB_SPEC to override the default libraries. */
531 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
536 /* XXX: valid only for GNU ld */
537 /* XXX: should exactly match hooks provided by libmudflap.a */
538 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
539 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
540 --wrap=mmap --wrap=munmap --wrap=alloca\
541 } %{fmudflapth: --wrap=pthread_create\
542 }} %{fmudflap|fmudflapth: --wrap=main}"
545 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
548 /* When using -fsplit-stack we need to wrap pthread_create, in order
549 to initialize the stack guard. We always use wrapping, rather than
550 shared library ordering, and we keep the wrapper function in
551 libgcc. This is not yet a real spec, though it could become one;
552 it is currently just stuffed into LINK_SPEC. FIXME: This wrapping
553 only works with GNU ld and gold. FIXME: This is incompatible with
554 -fmudflap when linking statically, which wants to do its own
556 #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
558 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
561 #if defined(REAL_LIBGCC_SPEC)
562 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
563 #elif defined(LINK_LIBGCC_SPECIAL_1)
564 /* Have gcc do the search for libgcc.a. */
565 #define LIBGCC_SPEC "libgcc.a%s"
567 #define LIBGCC_SPEC "-lgcc"
571 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
572 #ifndef STARTFILE_SPEC
573 #define STARTFILE_SPEC \
574 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
577 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
579 #define ENDFILE_SPEC ""
583 #define LINKER_NAME "collect2"
586 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
587 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
592 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
594 #ifndef ASM_DEBUG_SPEC
595 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
596 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
597 # define ASM_DEBUG_SPEC \
598 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
599 ? "%{!g0:%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}}" ASM_MAP \
600 : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
602 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
603 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP
605 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
606 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP
610 #ifndef ASM_DEBUG_SPEC
611 # define ASM_DEBUG_SPEC ""
614 /* Here is the spec for running the linker, after compiling all files. */
616 /* This is overridable by the target in case they need to specify the
617 -lgcc and -lc order specially, yet not require them to override all
618 of LINK_COMMAND_SPEC. */
619 #ifndef LINK_GCC_C_SEQUENCE_SPEC
620 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
623 #ifndef LINK_SSP_SPEC
624 #ifdef TARGET_LIBC_PROVIDES_SSP
625 #define LINK_SSP_SPEC "%{fstack-protector:}"
627 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
631 #ifndef LINK_PIE_SPEC
633 #define LINK_PIE_SPEC "%{pie:-pie} "
635 #define LINK_PIE_SPEC "%{pie:} "
639 #ifndef LINK_BUILDID_SPEC
640 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
641 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
646 /* -u* was put back because both BSD and SysV seem to support it. */
647 /* %{static:} simply prevents an error message if the target machine
648 doesn't handle -static. */
649 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
650 scripts which exist in user specified directories, or in standard
652 /* We pass any -flto and -fwhopr flags on to the linker, which is expected
653 to understand them. In practice, this means it had better be collect2. */
654 #ifndef LINK_COMMAND_SPEC
655 #define LINK_COMMAND_SPEC "\
656 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
658 %{fuse-linker-plugin: \
659 -plugin %(linker_plugin_file) \
660 -plugin-opt=%(lto_wrapper) \
661 -plugin-opt=-fresolution=%u.res \
662 %{static|static-libgcc:-plugin-opt=-pass-through=%(lto_libgcc)} \
663 %{static:-plugin-opt=-pass-through=-lc} \
665 %{flto:%<fcompare-debug*} %{fwhopr*:%<fcompare-debug*} \
666 %{flto} %{fwhopr*} %l " LINK_PIE_SPEC \
667 "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
668 %{s} %{t} %{u*} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
669 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
670 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}\
671 %(mflib) " STACK_SPLIT_SPEC "\
672 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\
673 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
674 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
677 #ifndef LINK_LIBGCC_SPEC
678 /* Generate -L options for startfile prefix list. */
679 # define LINK_LIBGCC_SPEC "%D"
682 #ifndef STARTFILE_PREFIX_SPEC
683 # define STARTFILE_PREFIX_SPEC ""
687 # define SYSROOT_SPEC "--sysroot=%R"
690 #ifndef SYSROOT_SUFFIX_SPEC
691 # define SYSROOT_SUFFIX_SPEC ""
694 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
695 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
698 static const char *asm_debug
;
699 static const char *cpp_spec
= CPP_SPEC
;
700 static const char *cc1_spec
= CC1_SPEC
;
701 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
702 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
703 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
704 static const char *asm_spec
= ASM_SPEC
;
705 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
706 static const char *link_spec
= LINK_SPEC
;
707 static const char *lib_spec
= LIB_SPEC
;
708 static const char *mfwrap_spec
= MFWRAP_SPEC
;
709 static const char *mflib_spec
= MFLIB_SPEC
;
710 static const char *link_gomp_spec
= "";
711 static const char *libgcc_spec
= LIBGCC_SPEC
;
712 static const char *endfile_spec
= ENDFILE_SPEC
;
713 static const char *startfile_spec
= STARTFILE_SPEC
;
714 static const char *linker_name_spec
= LINKER_NAME
;
715 static const char *linker_plugin_file_spec
= "";
716 static const char *lto_wrapper_spec
= "";
717 static const char *lto_gcc_spec
= "";
718 static const char *lto_libgcc_spec
= "";
719 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
720 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
721 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
722 static const char *sysroot_spec
= SYSROOT_SPEC
;
723 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
724 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
726 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
727 There should be no need to override these in target dependent files,
728 but we need to copy them to the specs file so that newer versions
729 of the GCC driver can correctly drive older tool chains with the
730 appropriate -B options. */
732 /* When cpplib handles traditional preprocessing, get rid of this, and
733 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
734 that we default the front end language better. */
735 static const char *trad_capable_cpp
=
736 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
738 /* We don't wrap .d files in %W{} since a missing .d file, and
739 therefore no dependency entry, confuses make into thinking a .o
740 file that happens to exist is up-to-date. */
741 static const char *cpp_unique_options
=
742 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
743 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
744 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
745 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
746 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
747 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
748 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
749 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
750 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
751 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
754 /* This contains cpp options which are common with cc1_options and are passed
755 only when preprocessing only to avoid duplication. We pass the cc1 spec
756 options to the preprocessor so that it the cc1 spec may manipulate
757 options used to set target flags. Those special target flags settings may
758 in turn cause preprocessor symbols to be defined specially. */
759 static const char *cpp_options
=
760 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
761 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
762 %{undef} %{save-temps*:-fpch-preprocess}";
764 /* This contains cpp options which are not passed when the preprocessor
765 output will be used by another program. */
766 static const char *cpp_debug_options
= "%{d*}";
768 /* NB: This is shared amongst all front-ends, except for Ada. */
769 static const char *cc1_options
=
770 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
771 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
772 %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\
773 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
774 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
775 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
776 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
777 %{Qn:-fno-ident} %{-help:--help}\
778 %{-target-help:--target-help}\
779 %{-version:--version}\
780 %{-help=*:--help=%*}\
781 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
782 %{fsyntax-only:-o %j} %{-param*}\
783 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
784 %{coverage:-fprofile-arcs -ftest-coverage}";
786 static const char *asm_options
=
787 "%{--target-help:%:print-asm-header()} "
789 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
790 to the assembler equivalents. */
791 "%{v} %{w:-W} %{I*} "
793 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
795 static const char *invoke_as
=
796 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
798 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
799 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
803 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
804 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
808 /* Some compilers have limits on line lengths, and the multilib_select
809 and/or multilib_matches strings can be very long, so we build them at
811 static struct obstack multilib_obstack
;
812 static const char *multilib_select
;
813 static const char *multilib_matches
;
814 static const char *multilib_defaults
;
815 static const char *multilib_exclusions
;
817 /* Check whether a particular argument is a default argument. */
819 #ifndef MULTILIB_DEFAULTS
820 #define MULTILIB_DEFAULTS { "" }
823 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
825 #ifndef DRIVER_SELF_SPECS
826 #define DRIVER_SELF_SPECS ""
829 /* Adding -fopenmp should imply pthreads. This is particularly important
830 for targets that use different start files and suchlike. */
831 #ifndef GOMP_SELF_SPECS
832 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
835 static const char *const driver_self_specs
[] = {
836 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
837 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
840 #ifndef OPTION_DEFAULT_SPECS
841 #define OPTION_DEFAULT_SPECS { "", "" }
850 static const struct default_spec
851 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
855 struct user_specs
*next
;
856 const char *filename
;
859 static struct user_specs
*user_specs_head
, *user_specs_tail
;
862 /* Record the mapping from file suffixes for compilation specs. */
866 const char *suffix
; /* Use this compiler for input files
867 whose names end in this suffix. */
869 const char *spec
; /* To use this compiler, run this spec. */
871 const char *cpp_spec
; /* If non-NULL, substitute this spec
872 for `%C', rather than the usual
874 const int combinable
; /* If nonzero, compiler can deal with
875 multiple source files at once (IMA). */
876 const int needs_preprocessing
; /* If nonzero, source files need to
877 be run through a preprocessor. */
880 /* Pointer to a vector of `struct compiler' that gives the spec for
881 compiling a file, based on its suffix.
882 A file that does not end in any of these suffixes will be passed
883 unchanged to the loader and nothing else will be done to it.
885 An entry containing two 0s is used to terminate the vector.
887 If multiple entries match a file, the last matching one is used. */
889 static struct compiler
*compilers
;
891 /* Number of entries in `compilers', not counting the null terminator. */
893 static int n_compilers
;
895 /* The default list of file name suffixes and their compilation specs. */
897 static const struct compiler default_compilers
[] =
899 /* Add lists of suffixes of known languages here. If those languages
900 were not present when we built the driver, we will hit these copies
901 and be given a more meaningful error than "file not used since
902 linking is not done". */
903 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
904 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
905 {".mii", "#Objective-C++", 0, 0, 0},
906 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
907 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
908 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
909 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
910 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
911 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
912 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
913 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
914 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
915 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
916 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
917 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
918 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
919 {".r", "#Ratfor", 0, 0, 0},
920 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
921 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
922 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
923 /* Next come the entries for C. */
924 {".c", "@c", 0, 0, 1},
926 /* cc1 has an integrated ISO C preprocessor. We should invoke the
927 external preprocessor if -save-temps is given. */
928 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
930 %{traditional|ftraditional:\
931 %eGNU C no longer supports -traditional without -E}\
932 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
933 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
934 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
936 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
937 cc1 %(cpp_unique_options) %(cc1_options)}}}\
938 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
940 "%{!E:%e-E or -x required when input is from standard input}\
941 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
942 {".h", "@c-header", 0, 0, 0},
944 /* cc1 has an integrated ISO C preprocessor. We should invoke the
945 external preprocessor if -save-temps is given. */
946 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
948 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
949 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
950 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
952 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
953 %W{o*:--output-pch=%*}}%V}\
954 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
955 cc1 %(cpp_unique_options) %(cc1_options)\
956 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
957 %W{o*:--output-pch=%*}}%V}}}}}}", 0, 0, 0},
958 {".i", "@cpp-output", 0, 0, 0},
960 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
961 {".s", "@assembler", 0, 1, 0},
963 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
964 {".sx", "@assembler-with-cpp", 0, 1, 0},
965 {".S", "@assembler-with-cpp", 0, 1, 0},
966 {"@assembler-with-cpp",
967 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
968 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
969 %{E|M|MM:%(cpp_debug_options)}\
970 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
971 as %(asm_debug) %(asm_options) %|.s %A }}}}"
973 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
974 %{E|M|MM:%(cpp_debug_options)}\
975 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
976 as %(asm_debug) %(asm_options) %m.s %A }}}}"
981 /* Mark end of table. */
985 /* Number of elements in default_compilers, not counting the terminator. */
987 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
989 /* A vector of options to give to the linker.
990 These options are accumulated by %x,
991 and substituted into the linker command with %X. */
992 static int n_linker_options
;
993 static char **linker_options
;
995 /* A vector of options to give to the assembler.
996 These options are accumulated by -Wa,
997 and substituted into the assembler command with %Y. */
998 static int n_assembler_options
;
999 static char **assembler_options
;
1001 /* A vector of options to give to the preprocessor.
1002 These options are accumulated by -Wp,
1003 and substituted into the preprocessor command with %Z. */
1004 static int n_preprocessor_options
;
1005 static char **preprocessor_options
;
1008 skip_whitespace (char *p
)
1012 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1013 be considered whitespace. */
1014 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1016 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1030 /* Structures to keep track of prefixes to try when looking for files. */
1034 const char *prefix
; /* String to prepend to the path. */
1035 struct prefix_list
*next
; /* Next in linked list. */
1036 int require_machine_suffix
; /* Don't use without machine_suffix. */
1037 /* 2 means try both machine_suffix and just_machine_suffix. */
1038 int priority
; /* Sort key - priority within list. */
1039 int os_multilib
; /* 1 if OS multilib scheme should be used,
1040 0 for GCC multilib scheme. */
1045 struct prefix_list
*plist
; /* List of prefixes to try */
1046 int max_len
; /* Max length of a prefix in PLIST */
1047 const char *name
; /* Name of this list (used in config stuff) */
1050 /* List of prefixes to try when looking for executables. */
1052 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1054 /* List of prefixes to try when looking for startup (crt0) files. */
1056 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1058 /* List of prefixes to try when looking for include files. */
1060 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1062 /* Suffix to attach to directories searched for commands.
1063 This looks like `MACHINE/VERSION/'. */
1065 static const char *machine_suffix
= 0;
1067 /* Suffix to attach to directories searched for commands.
1068 This is just `MACHINE/'. */
1070 static const char *just_machine_suffix
= 0;
1072 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1074 static const char *gcc_exec_prefix
;
1076 /* Adjusted value of standard_libexec_prefix. */
1078 static const char *gcc_libexec_prefix
;
1080 /* Default prefixes to attach to command names. */
1082 #ifndef STANDARD_STARTFILE_PREFIX_1
1083 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1085 #ifndef STANDARD_STARTFILE_PREFIX_2
1086 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1089 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1090 #undef MD_EXEC_PREFIX
1091 #undef MD_STARTFILE_PREFIX
1092 #undef MD_STARTFILE_PREFIX_1
1095 /* If no prefixes defined, use the null string, which will disable them. */
1096 #ifndef MD_EXEC_PREFIX
1097 #define MD_EXEC_PREFIX ""
1099 #ifndef MD_STARTFILE_PREFIX
1100 #define MD_STARTFILE_PREFIX ""
1102 #ifndef MD_STARTFILE_PREFIX_1
1103 #define MD_STARTFILE_PREFIX_1 ""
1106 /* These directories are locations set at configure-time based on the
1107 --prefix option provided to configure. Their initializers are
1108 defined in Makefile.in. These paths are not *directly* used when
1109 gcc_exec_prefix is set because, in that case, we know where the
1110 compiler has been installed, and use paths relative to that
1111 location instead. */
1112 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1113 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1114 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1115 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1117 /* For native compilers, these are well-known paths containing
1118 components that may be provided by the system. For cross
1119 compilers, these paths are not used. */
1120 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1121 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1122 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1123 static const char *const standard_startfile_prefix_1
1124 = STANDARD_STARTFILE_PREFIX_1
;
1125 static const char *const standard_startfile_prefix_2
1126 = STANDARD_STARTFILE_PREFIX_2
;
1128 /* A relative path to be used in finding the location of tools
1129 relative to the driver. */
1130 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1132 /* Subdirectory to use for locating libraries. Set by
1133 set_multilib_dir based on the compilation options. */
1135 static const char *multilib_dir
;
1137 /* Subdirectory to use for locating libraries in OS conventions. Set by
1138 set_multilib_dir based on the compilation options. */
1140 static const char *multilib_os_dir
;
1142 /* Structure to keep track of the specs that have been defined so far.
1143 These are accessed using %(specname) or %[specname] in a compiler
1148 /* The following 2 fields must be first */
1149 /* to allow EXTRA_SPECS to be initialized */
1150 const char *name
; /* name of the spec. */
1151 const char *ptr
; /* available ptr if no static pointer */
1153 /* The following fields are not initialized */
1154 /* by EXTRA_SPECS */
1155 const char **ptr_spec
; /* pointer to the spec itself. */
1156 struct spec_list
*next
; /* Next spec in linked list. */
1157 int name_len
; /* length of the name */
1158 int alloc_p
; /* whether string was allocated */
1161 #define INIT_STATIC_SPEC(NAME,PTR) \
1162 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1164 /* List of statically defined specs. */
1165 static struct spec_list static_specs
[] =
1167 INIT_STATIC_SPEC ("asm", &asm_spec
),
1168 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1169 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1170 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1171 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1172 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1173 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1174 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1175 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1176 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1177 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1178 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1179 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1180 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1181 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1182 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1183 INIT_STATIC_SPEC ("link", &link_spec
),
1184 INIT_STATIC_SPEC ("lib", &lib_spec
),
1185 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1186 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1187 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1188 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1189 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1190 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1191 INIT_STATIC_SPEC ("version", &compiler_version
),
1192 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1193 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1194 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1195 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1196 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1197 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1198 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1199 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1200 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1201 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1202 INIT_STATIC_SPEC ("lto_libgcc", <o_libgcc_spec
),
1203 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1204 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1205 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1206 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1207 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1208 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1209 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1210 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1213 #ifdef EXTRA_SPECS /* additional specs needed */
1214 /* Structure to keep track of just the first two args of a spec_list.
1215 That is all that the EXTRA_SPECS macro gives us. */
1218 const char *const name
;
1219 const char *const ptr
;
1222 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1223 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1226 /* List of dynamically allocates specs that have been defined so far. */
1228 static struct spec_list
*specs
= (struct spec_list
*) 0;
1230 /* List of static spec functions. */
1232 static const struct spec_function static_spec_functions
[] =
1234 { "getenv", getenv_spec_function
},
1235 { "if-exists", if_exists_spec_function
},
1236 { "if-exists-else", if_exists_else_spec_function
},
1237 { "replace-outfile", replace_outfile_spec_function
},
1238 { "remove-outfile", remove_outfile_spec_function
},
1239 { "version-compare", version_compare_spec_function
},
1240 { "include", include_spec_function
},
1241 { "find-file", find_file_spec_function
},
1242 { "find-plugindir", find_plugindir_spec_function
},
1243 { "print-asm-header", print_asm_header_spec_function
},
1244 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1245 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1246 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1247 #ifdef EXTRA_SPEC_FUNCTIONS
1248 EXTRA_SPEC_FUNCTIONS
1253 static int processing_spec_function
;
1255 /* Add appropriate libgcc specs to OBSTACK, taking into account
1256 various permutations of -shared-libgcc, -shared, and such. */
1258 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1260 #ifndef USE_LD_AS_NEEDED
1261 #define USE_LD_AS_NEEDED 0
1265 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1266 const char *static_name
, const char *eh_name
)
1270 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1271 "%{!static:%{!static-libgcc:"
1272 #if USE_LD_AS_NEEDED
1273 "%{!shared-libgcc:",
1274 static_name
, " --as-needed ", shared_name
, " --no-as-needed"
1277 shared_name
, "%{!shared: ", static_name
, "}"
1281 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1282 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1286 "%{shared-libgcc:", shared_name
, "}"
1287 "%{!shared-libgcc:", static_name
, "}"
1290 "%{shared:", shared_name
, "}"
1295 obstack_grow (obstack
, buf
, strlen (buf
));
1298 #endif /* ENABLE_SHARED_LIBGCC */
1300 /* Initialize the specs lookup routines. */
1305 struct spec_list
*next
= (struct spec_list
*) 0;
1306 struct spec_list
*sl
= (struct spec_list
*) 0;
1310 return; /* Already initialized. */
1313 fnotice (stderr
, "Using built-in specs.\n");
1316 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1318 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1320 sl
= &extra_specs
[i
];
1321 sl
->name
= extra_specs_1
[i
].name
;
1322 sl
->ptr
= extra_specs_1
[i
].ptr
;
1324 sl
->name_len
= strlen (sl
->name
);
1325 sl
->ptr_spec
= &sl
->ptr
;
1330 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1332 sl
= &static_specs
[i
];
1337 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1338 /* ??? If neither -shared-libgcc nor --static-libgcc was
1339 seen, then we should be making an educated guess. Some proposed
1340 heuristics for ELF include:
1342 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1343 program will be doing dynamic loading, which will likely
1344 need the shared libgcc.
1346 (2) If "-ldl", then it's also a fair bet that we're doing
1349 (3) For each ET_DYN we're linking against (either through -lfoo
1350 or /some/path/foo.so), check to see whether it or one of
1351 its dependencies depends on a shared libgcc.
1355 If the runtime is fixed to look for program headers instead
1356 of calling __register_frame_info at all, for each object,
1357 use the shared libgcc if any EH symbol referenced.
1359 If crtstuff is fixed to not invoke __register_frame_info
1360 automatically, for each object, use the shared libgcc if
1361 any non-empty unwind section found.
1363 Doing any of this probably requires invoking an external program to
1364 do the actual object file scanning. */
1366 const char *p
= libgcc_spec
;
1369 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1370 when given the proper command line arguments. */
1373 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1375 init_gcc_specs (&obstack
,
1377 #ifdef USE_LIBUNWIND_EXCEPTIONS
1383 #ifdef USE_LIBUNWIND_EXCEPTIONS
1384 # ifdef HAVE_LD_STATIC_DYNAMIC
1385 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1395 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1397 /* Ug. We don't know shared library extensions. Hope that
1398 systems that use this form don't do shared libraries. */
1399 init_gcc_specs (&obstack
,
1403 #ifdef USE_LIBUNWIND_EXCEPTIONS
1412 obstack_1grow (&obstack
, *p
);
1413 in_sep
= (*p
== ' ');
1418 obstack_1grow (&obstack
, '\0');
1419 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1422 #ifdef USE_AS_TRADITIONAL_FORMAT
1423 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1425 static const char tf
[] = "--traditional-format ";
1426 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1427 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1428 asm_spec
= XOBFINISH (&obstack
, const char *);
1432 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC
1433 # ifdef LINK_BUILDID_SPEC
1434 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1435 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof(LINK_BUILDID_SPEC
) - 1);
1437 # ifdef LINK_EH_SPEC
1438 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1439 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1441 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1442 link_spec
= XOBFINISH (&obstack
, const char *);
1448 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1449 removed; If the spec starts with a + then SPEC is added to the end of the
1453 set_spec (const char *name
, const char *spec
)
1455 struct spec_list
*sl
;
1456 const char *old_spec
;
1457 int name_len
= strlen (name
);
1460 /* If this is the first call, initialize the statically allocated specs. */
1463 struct spec_list
*next
= (struct spec_list
*) 0;
1464 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1466 sl
= &static_specs
[i
];
1473 /* See if the spec already exists. */
1474 for (sl
= specs
; sl
; sl
= sl
->next
)
1475 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1480 /* Not found - make it. */
1481 sl
= XNEW (struct spec_list
);
1482 sl
->name
= xstrdup (name
);
1483 sl
->name_len
= name_len
;
1484 sl
->ptr_spec
= &sl
->ptr
;
1486 *(sl
->ptr_spec
) = "";
1491 old_spec
= *(sl
->ptr_spec
);
1492 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1493 ? concat (old_spec
, spec
+ 1, NULL
)
1498 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1501 /* Free the old spec. */
1502 if (old_spec
&& sl
->alloc_p
)
1503 free (CONST_CAST(char *, old_spec
));
1508 /* Accumulate a command (program name and args), and run it. */
1510 /* Vector of pointers to arguments in the current line of specifications. */
1512 static const char **argbuf
;
1514 /* Number of elements allocated in argbuf. */
1516 static int argbuf_length
;
1518 /* Number of elements in argbuf currently in use (containing args). */
1520 static int argbuf_index
;
1522 /* Position in the argbuf array containing the name of the output file
1523 (the value associated with the "-o" flag). */
1525 static int have_o_argbuf_index
= 0;
1527 /* Were the options -c, -S or -E passed. */
1528 static int have_c
= 0;
1530 /* Was the option -o passed. */
1531 static int have_o
= 0;
1533 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1534 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1537 static struct temp_name
{
1538 const char *suffix
; /* suffix associated with the code. */
1539 int length
; /* strlen (suffix). */
1540 int unique
; /* Indicates whether %g or %u/%U was used. */
1541 const char *filename
; /* associated filename. */
1542 int filename_length
; /* strlen (filename). */
1543 struct temp_name
*next
;
1546 /* Number of commands executed so far. */
1548 static int execution_count
;
1550 /* Number of commands that exited with a signal. */
1552 static int signal_count
;
1554 /* Allocate the argument vector. */
1560 argbuf
= XNEWVEC (const char *, argbuf_length
);
1563 /* Clear out the vector of arguments (after a command is executed). */
1571 /* Add one argument to the vector at the end.
1572 This is done when a space is seen or at the end of the line.
1573 If DELETE_ALWAYS is nonzero, the arg is a filename
1574 and the file should be deleted eventually.
1575 If DELETE_FAILURE is nonzero, the arg is a filename
1576 and the file should be deleted if this compilation fails. */
1579 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1581 if (argbuf_index
+ 1 == argbuf_length
)
1582 argbuf
= XRESIZEVEC (const char *, argbuf
, (argbuf_length
*= 2));
1584 argbuf
[argbuf_index
++] = arg
;
1585 argbuf
[argbuf_index
] = 0;
1587 if (strcmp (arg
, "-o") == 0)
1588 have_o_argbuf_index
= argbuf_index
;
1589 if (delete_always
|| delete_failure
)
1592 /* If the temporary file we should delete is specified as
1593 part of a joined argument extract the filename. */
1595 && (p
= strrchr (arg
, '=')))
1597 record_temp_file (arg
, delete_always
, delete_failure
);
1601 /* Load specs from a file name named FILENAME, replacing occurrences of
1602 various different types of line-endings, \r\n, \n\r and just \r, with
1606 load_specs (const char *filename
)
1610 struct stat statbuf
;
1617 fnotice (stderr
, "Reading specs from %s\n", filename
);
1619 /* Open and stat the file. */
1620 desc
= open (filename
, O_RDONLY
, 0);
1622 pfatal_with_name (filename
);
1623 if (stat (filename
, &statbuf
) < 0)
1624 pfatal_with_name (filename
);
1626 /* Read contents of file into BUFFER. */
1627 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
1628 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1630 pfatal_with_name (filename
);
1631 buffer
[readlen
] = 0;
1634 specs
= XNEWVEC (char, readlen
+ 1);
1636 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1642 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1644 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1658 /* Read compilation specs from a file named FILENAME,
1659 replacing the default ones.
1661 A suffix which starts with `*' is a definition for
1662 one of the machine-specific sub-specs. The "suffix" should be
1663 *asm, *cc1, *cpp, *link, *startfile, etc.
1664 The corresponding spec is stored in asm_spec, etc.,
1665 rather than in the `compilers' vector.
1667 Anything invalid in the file is a fatal error. */
1670 read_specs (const char *filename
, int main_p
)
1675 buffer
= load_specs (filename
);
1677 /* Scan BUFFER for specs, putting them in the vector. */
1683 char *in
, *out
, *p1
, *p2
, *p3
;
1685 /* Advance P in BUFFER to the next nonblank nocomment line. */
1686 p
= skip_whitespace (p
);
1690 /* Is this a special command that starts with '%'? */
1691 /* Don't allow this for the main specs file, since it would
1692 encourage people to overwrite it. */
1693 if (*p
== '%' && !main_p
)
1696 while (*p
&& *p
!= '\n')
1702 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1703 && (p1
[sizeof "%include" - 1] == ' '
1704 || p1
[sizeof "%include" - 1] == '\t'))
1708 p1
+= sizeof ("%include");
1709 while (*p1
== ' ' || *p1
== '\t')
1712 if (*p1
++ != '<' || p
[-2] != '>')
1713 fatal_error ("specs %%include syntax malformed after "
1715 (long) (p1
- buffer
+ 1));
1718 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1719 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1722 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1723 && (p1
[sizeof "%include_noerr" - 1] == ' '
1724 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1728 p1
+= sizeof "%include_noerr";
1729 while (*p1
== ' ' || *p1
== '\t')
1732 if (*p1
++ != '<' || p
[-2] != '>')
1733 fatal_error ("specs %%include syntax malformed after "
1735 (long) (p1
- buffer
+ 1));
1738 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1740 read_specs (new_filename
, FALSE
);
1741 else if (verbose_flag
)
1742 fnotice (stderr
, "could not find specs file %s\n", p1
);
1745 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1746 && (p1
[sizeof "%rename" - 1] == ' '
1747 || p1
[sizeof "%rename" - 1] == '\t'))
1750 struct spec_list
*sl
;
1751 struct spec_list
*newsl
;
1753 /* Get original name. */
1754 p1
+= sizeof "%rename";
1755 while (*p1
== ' ' || *p1
== '\t')
1758 if (! ISALPHA ((unsigned char) *p1
))
1759 fatal_error ("specs %%rename syntax malformed after "
1761 (long) (p1
- buffer
));
1764 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1767 if (*p2
!= ' ' && *p2
!= '\t')
1768 fatal_error ("specs %%rename syntax malformed after "
1770 (long) (p2
- buffer
));
1774 while (*p2
== ' ' || *p2
== '\t')
1777 if (! ISALPHA ((unsigned char) *p2
))
1778 fatal_error ("specs %%rename syntax malformed after "
1780 (long) (p2
- buffer
));
1782 /* Get new spec name. */
1784 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
1788 fatal_error ("specs %%rename syntax malformed after "
1790 (long) (p3
- buffer
));
1793 for (sl
= specs
; sl
; sl
= sl
->next
)
1794 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1798 fatal_error ("specs %s spec was not found to be renamed", p1
);
1800 if (strcmp (p1
, p2
) == 0)
1803 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
1804 if (strcmp (newsl
->name
, p2
) == 0)
1805 fatal_error ("%s: attempt to rename spec %qs to "
1806 "already defined spec %qs",
1811 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
1813 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
1817 set_spec (p2
, *(sl
->ptr_spec
));
1819 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
1821 *(sl
->ptr_spec
) = "";
1826 fatal_error ("specs unknown %% command after %ld characters",
1827 (long) (p1
- buffer
));
1830 /* Find the colon that should end the suffix. */
1832 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1835 /* The colon shouldn't be missing. */
1837 fatal_error ("specs file malformed after %ld characters",
1838 (long) (p1
- buffer
));
1840 /* Skip back over trailing whitespace. */
1842 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1845 /* Copy the suffix to a string. */
1846 suffix
= save_string (p
, p2
- p
);
1847 /* Find the next line. */
1848 p
= skip_whitespace (p1
+ 1);
1850 fatal_error ("specs file malformed after %ld characters",
1851 (long) (p
- buffer
));
1854 /* Find next blank line or end of string. */
1855 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1858 /* Specs end at the blank line and do not include the newline. */
1859 spec
= save_string (p
, p1
- p
);
1862 /* Delete backslash-newline sequences from the spec. */
1867 if (in
[0] == '\\' && in
[1] == '\n')
1869 else if (in
[0] == '#')
1870 while (*in
&& *in
!= '\n')
1878 if (suffix
[0] == '*')
1880 if (! strcmp (suffix
, "*link_command"))
1881 link_command_spec
= spec
;
1883 set_spec (suffix
+ 1, spec
);
1887 /* Add this pair to the vector. */
1889 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
1891 compilers
[n_compilers
].suffix
= suffix
;
1892 compilers
[n_compilers
].spec
= spec
;
1894 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
1898 link_command_spec
= spec
;
1901 if (link_command_spec
== 0)
1902 fatal_error ("spec file has no spec for linking");
1905 /* Record the names of temporary files we tell compilers to write,
1906 and delete them at the end of the run. */
1908 /* This is the common prefix we use to make temp file names.
1909 It is chosen once for each run of this program.
1910 It is substituted into a spec by %g or %j.
1911 Thus, all temp file names contain this prefix.
1912 In practice, all temp file names start with this prefix.
1914 This prefix comes from the envvar TMPDIR if it is defined;
1915 otherwise, from the P_tmpdir macro if that is defined;
1916 otherwise, in /usr/tmp or /tmp;
1917 or finally the current directory if all else fails. */
1919 static const char *temp_filename
;
1921 /* Length of the prefix. */
1923 static int temp_filename_length
;
1925 /* Define the list of temporary files to delete. */
1930 struct temp_file
*next
;
1933 /* Queue of files to delete on success or failure of compilation. */
1934 static struct temp_file
*always_delete_queue
;
1935 /* Queue of files to delete on failure of compilation. */
1936 static struct temp_file
*failure_delete_queue
;
1938 /* Record FILENAME as a file to be deleted automatically.
1939 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1940 otherwise delete it in any case.
1941 FAIL_DELETE nonzero means delete it if a compilation step fails;
1942 otherwise delete it in any case. */
1945 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
1947 char *const name
= xstrdup (filename
);
1951 struct temp_file
*temp
;
1952 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1953 if (! strcmp (name
, temp
->name
))
1956 temp
= XNEW (struct temp_file
);
1957 temp
->next
= always_delete_queue
;
1959 always_delete_queue
= temp
;
1966 struct temp_file
*temp
;
1967 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1968 if (! strcmp (name
, temp
->name
))
1971 temp
= XNEW (struct temp_file
);
1972 temp
->next
= failure_delete_queue
;
1974 failure_delete_queue
= temp
;
1980 /* Delete all the temporary files whose names we previously recorded. */
1982 #ifndef DELETE_IF_ORDINARY
1983 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
1986 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
1987 if (unlink (NAME) < 0) \
1989 perror_with_name (NAME); \
1994 delete_if_ordinary (const char *name
)
2000 printf ("Delete %s? (y or n) ", name
);
2004 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2007 if (i
== 'y' || i
== 'Y')
2009 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2013 delete_temp_files (void)
2015 struct temp_file
*temp
;
2017 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2018 delete_if_ordinary (temp
->name
);
2019 always_delete_queue
= 0;
2022 /* Delete all the files to be deleted on error. */
2025 delete_failure_queue (void)
2027 struct temp_file
*temp
;
2029 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2030 delete_if_ordinary (temp
->name
);
2034 clear_failure_queue (void)
2036 failure_delete_queue
= 0;
2039 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2041 If DO_MULTI is true iterate over the paths twice, first with multilib
2042 suffix then without, otherwise iterate over the paths once without
2043 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2044 to avoid visiting the same path twice, but we could do better. For
2045 instance, /usr/lib/../lib is considered different from /usr/lib.
2046 At least EXTRA_SPACE chars past the end of the path passed to
2047 CALLBACK are available for use by the callback.
2048 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2050 Returns the value returned by CALLBACK. */
2053 for_each_path (const struct path_prefix
*paths
,
2056 void *(*callback
) (char *, void *),
2057 void *callback_info
)
2059 struct prefix_list
*pl
;
2060 const char *multi_dir
= NULL
;
2061 const char *multi_os_dir
= NULL
;
2062 const char *multi_suffix
;
2063 const char *just_multi_suffix
;
2066 bool skip_multi_dir
= false;
2067 bool skip_multi_os_dir
= false;
2069 multi_suffix
= machine_suffix
;
2070 just_multi_suffix
= just_machine_suffix
;
2071 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2073 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2074 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2075 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2077 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2078 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2082 size_t multi_dir_len
= 0;
2083 size_t multi_os_dir_len
= 0;
2085 size_t just_suffix_len
;
2089 multi_dir_len
= strlen (multi_dir
);
2091 multi_os_dir_len
= strlen (multi_os_dir
);
2092 suffix_len
= strlen (multi_suffix
);
2093 just_suffix_len
= strlen (just_multi_suffix
);
2097 len
= paths
->max_len
+ extra_space
+ 1;
2098 if (suffix_len
> multi_os_dir_len
)
2101 len
+= multi_os_dir_len
;
2102 path
= XNEWVEC (char, len
);
2105 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2107 len
= strlen (pl
->prefix
);
2108 memcpy (path
, pl
->prefix
, len
);
2110 /* Look first in MACHINE/VERSION subdirectory. */
2111 if (!skip_multi_dir
)
2113 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2114 ret
= callback (path
, callback_info
);
2119 /* Some paths are tried with just the machine (ie. target)
2120 subdir. This is used for finding as, ld, etc. */
2122 && pl
->require_machine_suffix
== 2)
2124 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2125 ret
= callback (path
, callback_info
);
2130 /* Now try the base path. */
2131 if (!pl
->require_machine_suffix
2132 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2134 const char *this_multi
;
2135 size_t this_multi_len
;
2137 if (pl
->os_multilib
)
2139 this_multi
= multi_os_dir
;
2140 this_multi_len
= multi_os_dir_len
;
2144 this_multi
= multi_dir
;
2145 this_multi_len
= multi_dir_len
;
2149 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2153 ret
= callback (path
, callback_info
);
2161 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2164 /* Run through the paths again, this time without multilibs.
2165 Don't repeat any we have already seen. */
2168 free (CONST_CAST (char *, multi_dir
));
2170 free (CONST_CAST (char *, multi_suffix
));
2171 multi_suffix
= machine_suffix
;
2172 free (CONST_CAST (char *, just_multi_suffix
));
2173 just_multi_suffix
= just_machine_suffix
;
2176 skip_multi_dir
= true;
2179 free (CONST_CAST (char *, multi_os_dir
));
2180 multi_os_dir
= NULL
;
2183 skip_multi_os_dir
= true;
2188 free (CONST_CAST (char *, multi_dir
));
2189 free (CONST_CAST (char *, multi_suffix
));
2190 free (CONST_CAST (char *, just_multi_suffix
));
2193 free (CONST_CAST (char *, multi_os_dir
));
2199 /* Callback for build_search_list. Adds path to obstack being built. */
2201 struct add_to_obstack_info
{
2208 add_to_obstack (char *path
, void *data
)
2210 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2212 if (info
->check_dir
&& !is_directory (path
, false))
2215 if (!info
->first_time
)
2216 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2218 obstack_grow (info
->ob
, path
, strlen (path
));
2220 info
->first_time
= false;
2224 /* Add or change the value of an environment variable, outputting the
2225 change to standard error if in verbose mode. */
2227 xputenv (const char *string
)
2230 fnotice (stderr
, "%s\n", string
);
2231 putenv (CONST_CAST (char *, string
));
2234 /* Build a list of search directories from PATHS.
2235 PREFIX is a string to prepend to the list.
2236 If CHECK_DIR_P is true we ensure the directory exists.
2237 If DO_MULTI is true, multilib paths are output first, then
2239 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2240 It is also used by the --print-search-dirs flag. */
2243 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2244 bool check_dir
, bool do_multi
)
2246 struct add_to_obstack_info info
;
2248 info
.ob
= &collect_obstack
;
2249 info
.check_dir
= check_dir
;
2250 info
.first_time
= true;
2252 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2253 obstack_1grow (&collect_obstack
, '=');
2255 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2257 obstack_1grow (&collect_obstack
, '\0');
2258 return XOBFINISH (&collect_obstack
, char *);
2261 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2265 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2268 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2271 /* Check whether NAME can be accessed in MODE. This is like access,
2272 except that it never considers directories to be executable. */
2275 access_check (const char *name
, int mode
)
2281 if (stat (name
, &st
) < 0
2282 || S_ISDIR (st
.st_mode
))
2286 return access (name
, mode
);
2289 /* Callback for find_a_file. Appends the file name to the directory
2290 path. If the resulting file exists in the right mode, return the
2291 full pathname to the file. */
2293 struct file_at_path_info
{
2302 file_at_path (char *path
, void *data
)
2304 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2305 size_t len
= strlen (path
);
2307 memcpy (path
+ len
, info
->name
, info
->name_len
);
2308 len
+= info
->name_len
;
2310 /* Some systems have a suffix for executable files.
2311 So try appending that first. */
2312 if (info
->suffix_len
)
2314 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2315 if (access_check (path
, info
->mode
) == 0)
2320 if (access_check (path
, info
->mode
) == 0)
2326 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2327 access to check permissions. If DO_MULTI is true, search multilib
2328 paths then non-multilib paths, otherwise do not search multilib paths.
2329 Return 0 if not found, otherwise return its name, allocated with malloc. */
2332 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2335 struct file_at_path_info info
;
2337 #ifdef DEFAULT_ASSEMBLER
2338 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2339 return xstrdup (DEFAULT_ASSEMBLER
);
2342 #ifdef DEFAULT_LINKER
2343 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2344 return xstrdup (DEFAULT_LINKER
);
2347 /* Determine the filename to execute (special case for absolute paths). */
2349 if (IS_ABSOLUTE_PATH (name
))
2351 if (access (name
, mode
) == 0)
2352 return xstrdup (name
);
2358 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2359 info
.name_len
= strlen (info
.name
);
2360 info
.suffix_len
= strlen (info
.suffix
);
2363 return (char*) for_each_path (pprefix
, do_multi
,
2364 info
.name_len
+ info
.suffix_len
,
2365 file_at_path
, &info
);
2368 /* Ranking of prefixes in the sort list. -B prefixes are put before
2371 enum path_prefix_priority
2373 PREFIX_PRIORITY_B_OPT
,
2374 PREFIX_PRIORITY_LAST
2377 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2378 order according to PRIORITY. Within each PRIORITY, new entries are
2381 If WARN is nonzero, we will warn if no file is found
2382 through this prefix. WARN should point to an int
2383 which will be set to 1 if this entry is used.
2385 COMPONENT is the value to be passed to update_path.
2387 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2388 the complete value of machine_suffix.
2389 2 means try both machine_suffix and just_machine_suffix. */
2392 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2393 const char *component
, /* enum prefix_priority */ int priority
,
2394 int require_machine_suffix
, int os_multilib
)
2396 struct prefix_list
*pl
, **prev
;
2399 for (prev
= &pprefix
->plist
;
2400 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2401 prev
= &(*prev
)->next
)
2404 /* Keep track of the longest prefix. */
2406 prefix
= update_path (prefix
, component
);
2407 len
= strlen (prefix
);
2408 if (len
> pprefix
->max_len
)
2409 pprefix
->max_len
= len
;
2411 pl
= XNEW (struct prefix_list
);
2412 pl
->prefix
= prefix
;
2413 pl
->require_machine_suffix
= require_machine_suffix
;
2414 pl
->priority
= priority
;
2415 pl
->os_multilib
= os_multilib
;
2417 /* Insert after PREV. */
2422 /* Same as add_prefix, but prepending target_system_root to prefix. */
2423 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2425 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2426 const char *component
,
2427 /* enum prefix_priority */ int priority
,
2428 int require_machine_suffix
, int os_multilib
)
2430 if (!IS_ABSOLUTE_PATH (prefix
))
2431 fatal_error ("system path %qs is not absolute", prefix
);
2433 if (target_system_root
)
2435 if (target_sysroot_suffix
)
2436 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2437 prefix
= concat (target_system_root
, prefix
, NULL
);
2439 /* We have to override this because GCC's notion of sysroot
2440 moves along with GCC. */
2444 add_prefix (pprefix
, prefix
, component
, priority
,
2445 require_machine_suffix
, os_multilib
);
2448 /* Execute the command specified by the arguments on the current line of spec.
2449 When using pipes, this includes several piped-together commands
2450 with `|' between them.
2452 Return 0 if successful, -1 if failed. */
2458 int n_commands
; /* # of command. */
2460 struct pex_obj
*pex
;
2463 const char *prog
; /* program name. */
2464 const char **argv
; /* vector of args. */
2467 struct command
*commands
; /* each command buffer with above info. */
2469 gcc_assert (!processing_spec_function
);
2473 string
= find_a_file (&exec_prefixes
, argbuf
[0], X_OK
, false);
2474 argbuf
[0] = (string
) ? string
: argbuf
[0];
2475 insert_wrapper (wrapper_string
);
2478 /* Count # of piped commands. */
2479 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2480 if (strcmp (argbuf
[i
], "|") == 0)
2483 /* Get storage for each command. */
2484 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2486 /* Split argbuf into its separate piped processes,
2487 and record info about each one.
2488 Also search for the programs that are to be run. */
2490 commands
[0].prog
= argbuf
[0]; /* first command. */
2491 commands
[0].argv
= &argbuf
[0];
2493 if (!wrapper_string
)
2495 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2496 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2499 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2500 if (strcmp (argbuf
[i
], "|") == 0)
2501 { /* each command. */
2502 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2503 fatal_error ("-pipe not supported");
2505 argbuf
[i
] = 0; /* termination of command args. */
2506 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2507 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2508 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2511 commands
[n_commands
].argv
[0] = string
;
2515 argbuf
[argbuf_index
] = 0;
2517 /* If -v, print what we are about to do, and maybe query. */
2521 /* For help listings, put a blank line between sub-processes. */
2522 if (print_help_list
)
2523 fputc ('\n', stderr
);
2525 /* Print each piped command as a separate line. */
2526 for (i
= 0; i
< n_commands
; i
++)
2528 const char *const *j
;
2530 if (verbose_only_flag
)
2532 for (j
= commands
[i
].argv
; *j
; j
++)
2535 for (p
= *j
; *p
; ++p
)
2536 if (!ISALNUM ((unsigned char) *p
)
2537 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
2541 fprintf (stderr
, " \"");
2542 for (p
= *j
; *p
; ++p
)
2544 if (*p
== '"' || *p
== '\\' || *p
== '$')
2545 fputc ('\\', stderr
);
2548 fputc ('"', stderr
);
2551 fprintf (stderr
, " %s", *j
);
2555 for (j
= commands
[i
].argv
; *j
; j
++)
2556 fprintf (stderr
, " %s", *j
);
2558 /* Print a pipe symbol after all but the last command. */
2559 if (i
+ 1 != n_commands
)
2560 fprintf (stderr
, " |");
2561 fprintf (stderr
, "\n");
2564 if (verbose_only_flag
!= 0)
2566 /* verbose_only_flag should act as if the spec was
2567 executed, so increment execution_count before
2568 returning. This prevents spurious warnings about
2569 unused linker input files, etc. */
2574 fnotice (stderr
, "\nGo ahead? (y or n) ");
2578 while (getchar () != '\n')
2581 if (i
!= 'y' && i
!= 'Y')
2586 #ifdef ENABLE_VALGRIND_CHECKING
2587 /* Run the each command through valgrind. To simplify prepending the
2588 path to valgrind and the option "-q" (for quiet operation unless
2589 something triggers), we allocate a separate argv array. */
2591 for (i
= 0; i
< n_commands
; i
++)
2597 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2600 argv
= XALLOCAVEC (const char *, argc
+ 3);
2602 argv
[0] = VALGRIND_PATH
;
2604 for (j
= 2; j
< argc
+ 2; j
++)
2605 argv
[j
] = commands
[i
].argv
[j
- 2];
2608 commands
[i
].argv
= argv
;
2609 commands
[i
].prog
= argv
[0];
2613 /* Run each piped subprocess. */
2615 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
2616 ? PEX_RECORD_TIMES
: 0),
2617 progname
, temp_filename
);
2619 fatal_error ("pex_init failed: %m");
2621 for (i
= 0; i
< n_commands
; i
++)
2625 const char *string
= commands
[i
].argv
[0];
2627 errmsg
= pex_run (pex
,
2628 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
2629 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
2630 string
, CONST_CAST (char **, commands
[i
].argv
),
2635 fatal_error (errmsg
);
2639 pfatal_with_name (errmsg
);
2643 if (string
!= commands
[i
].prog
)
2644 free (CONST_CAST (char *, string
));
2649 /* Wait for all the subprocesses to finish. */
2653 struct pex_time
*times
= NULL
;
2656 statuses
= (int *) alloca (n_commands
* sizeof (int));
2657 if (!pex_get_status (pex
, n_commands
, statuses
))
2658 fatal_error ("failed to get exit status: %m");
2660 if (report_times
|| report_times_to_file
)
2662 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
2663 if (!pex_get_times (pex
, n_commands
, times
))
2664 fatal_error ("failed to get process times: %m");
2669 for (i
= 0; i
< n_commands
; ++i
)
2671 int status
= statuses
[i
];
2673 if (WIFSIGNALED (status
))
2676 /* SIGPIPE is a special case. It happens in -pipe mode
2677 when the compiler dies before the preprocessor is done,
2678 or the assembler dies before the compiler is done.
2679 There's generally been an error already, and this is
2680 just fallout. So don't generate another error unless
2681 we would otherwise have succeeded. */
2682 if (WTERMSIG (status
) == SIGPIPE
2683 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2690 internal_error ("%s (program %s)",
2691 strsignal (WTERMSIG (status
)), commands
[i
].prog
);
2693 else if (WIFEXITED (status
)
2694 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2696 if (WEXITSTATUS (status
) > greatest_status
)
2697 greatest_status
= WEXITSTATUS (status
);
2701 if (report_times
|| report_times_to_file
)
2703 struct pex_time
*pt
= ×
[i
];
2706 ut
= ((double) pt
->user_seconds
2707 + (double) pt
->user_microseconds
/ 1.0e6
);
2708 st
= ((double) pt
->system_seconds
2709 + (double) pt
->system_microseconds
/ 1.0e6
);
2714 fnotice (stderr
, "# %s %.2f %.2f\n",
2715 commands
[i
].prog
, ut
, st
);
2717 if (report_times_to_file
)
2720 const char *const *j
;
2722 fprintf (report_times_to_file
, "%g %g", ut
, st
);
2724 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
2727 for (p
= *j
; *p
; ++p
)
2728 if (*p
== '"' || *p
== '\\' || *p
== '$'
2734 fprintf (report_times_to_file
, " \"");
2735 for (p
= *j
; *p
; ++p
)
2737 if (*p
== '"' || *p
== '\\' || *p
== '$')
2738 fputc ('\\', report_times_to_file
);
2739 fputc (*p
, report_times_to_file
);
2741 fputc ('"', report_times_to_file
);
2744 fprintf (report_times_to_file
, " %s", *j
);
2747 fputc ('\n', report_times_to_file
);
2757 /* Find all the switches given to us
2758 and make a vector describing them.
2759 The elements of the vector are strings, one per switch given.
2760 If a switch uses following arguments, then the `part1' field
2761 is the switch itself and the `args' field
2762 is a null-terminated vector containing the following arguments.
2763 Bits in the `live_cond' field are:
2764 SWITCH_LIVE to indicate this switch is true in a conditional spec.
2765 SWITCH_FALSE to indicate this switch is overridden by a later switch.
2766 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
2767 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored
2768 in all do_spec calls afterwards. Used for %<S from self specs.
2769 The `validated' field is nonzero if any spec has looked at this switch;
2770 if it remains zero at the end of the run, it must be meaningless. */
2772 #define SWITCH_LIVE 0x1
2773 #define SWITCH_FALSE 0x2
2774 #define SWITCH_IGNORE 0x4
2775 #define SWITCH_IGNORE_PERMANENTLY 0x8
2781 unsigned int live_cond
;
2782 unsigned char validated
;
2783 unsigned char ordering
;
2786 static struct switchstr
*switches
;
2788 static int n_switches
;
2790 static int n_switches_alloc
;
2792 /* Set to zero if -fcompare-debug is disabled, positive if it's
2793 enabled and we're running the first compilation, negative if it's
2794 enabled and we're running the second compilation. For most of the
2795 time, it's in the range -1..1, but it can be temporarily set to 2
2796 or 3 to indicate that the -fcompare-debug flags didn't come from
2797 the command-line, but rather from the GCC_COMPARE_DEBUG environment
2798 variable, until a synthesized -fcompare-debug flag is added to the
2802 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
2803 int compare_debug_second
;
2805 /* Set to the flags that should be passed to the second compilation in
2806 a -fcompare-debug compilation. */
2807 const char *compare_debug_opt
;
2809 static struct switchstr
*switches_debug_check
[2];
2811 static int n_switches_debug_check
[2];
2813 static int n_switches_alloc_debug_check
[2];
2815 static char *debug_check_temp_file
[2];
2817 /* Language is one of three things:
2819 1) The name of a real programming language.
2820 2) NULL, indicating that no one has figured out
2822 3) '*', indicating that the file should be passed
2827 const char *language
;
2828 struct compiler
*incompiler
;
2833 /* Also a vector of input files specified. */
2835 static struct infile
*infiles
;
2839 static int n_infiles_alloc
;
2841 /* True if multiple input files are being compiled to a single
2844 static bool combine_inputs
;
2846 /* This counts the number of libraries added by lang_specific_driver, so that
2847 we can tell if there were any user supplied any files or libraries. */
2849 static int added_libraries
;
2851 /* And a vector of corresponding output files is made up later. */
2853 const char **outfiles
;
2855 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2857 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2858 is true if we should look for an executable suffix. DO_OBJ
2859 is true if we should look for an object suffix. */
2862 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
2863 int do_obj ATTRIBUTE_UNUSED
)
2865 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2873 len
= strlen (name
);
2875 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2876 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2877 if (do_obj
&& len
> 2
2878 && name
[len
- 2] == '.'
2879 && name
[len
- 1] == 'o')
2881 obstack_grow (&obstack
, name
, len
- 2);
2882 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
2883 name
= XOBFINISH (&obstack
, const char *);
2887 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2888 /* If there is no filetype, make it the executable suffix (which includes
2889 the "."). But don't get confused if we have just "-o". */
2890 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2893 for (i
= len
- 1; i
>= 0; i
--)
2894 if (IS_DIR_SEPARATOR (name
[i
]))
2897 for (i
++; i
< len
; i
++)
2901 obstack_grow (&obstack
, name
, len
);
2902 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
2903 strlen (TARGET_EXECUTABLE_SUFFIX
));
2904 name
= XOBFINISH (&obstack
, const char *);
2911 /* Display the command line switches accepted by gcc. */
2915 printf (_("Usage: %s [options] file...\n"), progname
);
2916 fputs (_("Options:\n"), stdout
);
2918 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
2919 fputs (_(" --help Display this information\n"), stdout
);
2920 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
2921 fputs (_(" --help={target|optimizers|warnings|params|[^]{joined|separate|undocumented}}[,...]\n"), stdout
);
2922 fputs (_(" Display specific types of command line options\n"), stdout
);
2924 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
2925 fputs (_(" --version Display compiler version information\n"), stdout
);
2926 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
2927 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
2928 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
2929 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
2930 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
2931 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
2932 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
2933 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
2935 -print-multi-lib Display the mapping between command line options and\n\
2936 multiple library search directories\n"), stdout
);
2937 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
2938 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout
);
2939 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
2940 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
2941 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
2942 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
2943 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
2944 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
2945 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
2946 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
2947 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout
);
2949 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
2950 prefixes to other gcc components\n"), stdout
);
2951 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
2952 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
2953 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
2954 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
2956 --sysroot=<directory> Use <directory> as the root directory for headers\n\
2957 and libraries\n"), stdout
);
2958 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
2959 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
2960 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
2961 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
2962 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
2963 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
2964 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
2966 -x <language> Specify the language of the following input files\n\
2967 Permissible languages include: c c++ assembler none\n\
2968 'none' means revert to the default behavior of\n\
2969 guessing the language based on the file's extension\n\
2973 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
2974 passed on to the various sub-processes invoked by %s. In order to pass\n\
2975 other options on to these processes the -W<letter> options must be used.\n\
2978 /* The rest of the options are displayed by invocations of the various
2983 add_preprocessor_option (const char *option
, int len
)
2985 n_preprocessor_options
++;
2987 if (! preprocessor_options
)
2988 preprocessor_options
= XNEWVEC (char *, n_preprocessor_options
);
2990 preprocessor_options
= XRESIZEVEC (char *, preprocessor_options
,
2991 n_preprocessor_options
);
2993 preprocessor_options
[n_preprocessor_options
- 1] =
2994 save_string (option
, len
);
2998 add_assembler_option (const char *option
, int len
)
3000 n_assembler_options
++;
3002 if (! assembler_options
)
3003 assembler_options
= XNEWVEC (char *, n_assembler_options
);
3005 assembler_options
= XRESIZEVEC (char *, assembler_options
,
3006 n_assembler_options
);
3008 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3012 add_linker_option (const char *option
, int len
)
3016 if (! linker_options
)
3017 linker_options
= XNEWVEC (char *, n_linker_options
);
3019 linker_options
= XRESIZEVEC (char *, linker_options
, n_linker_options
);
3021 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3024 /* Allocate space for an input file in infiles. */
3029 if (n_infiles_alloc
== 0)
3031 n_infiles_alloc
= 16;
3032 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3034 else if (n_infiles_alloc
== n_infiles
)
3036 n_infiles_alloc
*= 2;
3037 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3041 /* Store an input file with the given NAME and LANGUAGE in
3045 add_infile (const char *name
, const char *language
)
3048 infiles
[n_infiles
].name
= name
;
3049 infiles
[n_infiles
++].language
= language
;
3052 /* Allocate space for a switch in switches. */
3057 if (n_switches_alloc
== 0)
3059 n_switches_alloc
= 16;
3060 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3062 else if (n_switches_alloc
== n_switches
)
3064 n_switches_alloc
*= 2;
3065 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3069 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3070 as validated if VALIDATED. */
3073 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3077 switches
[n_switches
].part1
= opt
+ 1;
3079 switches
[n_switches
].args
= 0;
3082 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3083 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3084 switches
[n_switches
].args
[n_args
] = NULL
;
3087 switches
[n_switches
].live_cond
= 0;
3088 switches
[n_switches
].validated
= validated
;
3089 switches
[n_switches
].ordering
= 0;
3093 /* Handle an option DECODED that is unknown to the option-processing
3094 machinery, but may be known to specs. */
3097 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3099 save_switch (decoded
->canonical_option
[0],
3100 decoded
->canonical_option_num_elements
- 1,
3101 &decoded
->canonical_option
[1], false);
3106 /* Handle an option DECODED that is not marked as CL_DRIVER.
3107 LANG_MASK will always be CL_DRIVER. */
3110 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3111 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3113 /* At this point, non-driver options are accepted (and expected to
3114 be passed down by specs) unless marked to be rejected by the
3115 driver. Options to be rejected by the driver but accepted by the
3116 compilers proper are treated just like completely unknown
3118 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3120 if (option
->flags
& CL_REJECT_DRIVER
)
3121 error ("unrecognized command line option %qs",
3122 decoded
->orig_option_with_args_text
);
3124 driver_unknown_option_callback (decoded
);
3127 /* Note that an option (index OPT_INDEX, argument ARG, value VALUE)
3128 has been successfully handled with a handler for mask MASK. */
3131 driver_post_handling_callback (const struct cl_decoded_option
*decoded ATTRIBUTE_UNUSED
,
3132 unsigned int mask ATTRIBUTE_UNUSED
)
3134 /* Nothing to do here. */
3137 static const char *spec_lang
= 0;
3138 static int last_language_n_infiles
;
3140 /* Handle a driver option; arguments and return value as for
3144 driver_handle_option (struct gcc_options
*opts
,
3145 struct gcc_options
*opts_set
,
3146 const struct cl_decoded_option
*decoded
,
3147 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
3148 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
)
3150 size_t opt_index
= decoded
->opt_index
;
3151 const char *arg
= decoded
->arg
;
3152 const char *compare_debug_replacement_opt
;
3153 int value
= decoded
->value
;
3154 bool validated
= false;
3155 bool do_save
= true;
3157 gcc_assert (opts
== &global_options
);
3158 gcc_assert (opts_set
== &global_options_set
);
3159 gcc_assert (kind
== DK_UNSPECIFIED
);
3165 struct spec_list
*sl
;
3167 for (sl
= specs
; sl
; sl
= sl
->next
)
3168 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3169 if (link_command_spec
)
3170 printf ("*link_command:\n%s\n\n", link_command_spec
);
3174 case OPT_dumpversion
:
3175 printf ("%s\n", spec_version
);
3178 case OPT_dumpmachine
:
3179 printf ("%s\n", spec_machine
);
3185 /* CPP driver cannot obtain switch from cc1_options. */
3187 add_preprocessor_option ("--version", strlen ("--version"));
3188 add_assembler_option ("--version", strlen ("--version"));
3189 add_linker_option ("--version", strlen ("--version"));
3193 print_help_list
= 1;
3195 /* CPP driver cannot obtain switch from cc1_options. */
3197 add_preprocessor_option ("--help", 6);
3198 add_assembler_option ("--help", 6);
3199 add_linker_option ("--help", 6);
3203 print_subprocess_help
= 2;
3206 case OPT__target_help
:
3207 print_subprocess_help
= 1;
3209 /* CPP driver cannot obtain switch from cc1_options. */
3211 add_preprocessor_option ("--target-help", 13);
3212 add_assembler_option ("--target-help", 13);
3213 add_linker_option ("--target-help", 13);
3216 case OPT_pass_exit_codes
:
3217 case OPT_print_search_dirs
:
3218 case OPT_print_file_name_
:
3219 case OPT_print_prog_name_
:
3220 case OPT_print_multi_lib
:
3221 case OPT_print_multi_directory
:
3222 case OPT_print_sysroot
:
3223 case OPT_print_multi_os_directory
:
3224 case OPT_print_sysroot_headers_suffix
:
3227 /* These options set the variables specified in common.opt
3228 automatically, and do not need to be saved for spec
3233 case OPT_print_libgcc_file_name
:
3234 print_file_name
= "libgcc.a";
3238 case OPT_fcompare_debug_second
:
3239 compare_debug_second
= 1;
3242 case OPT_fcompare_debug
:
3246 compare_debug_replacement_opt
= "-fcompare-debug=";
3248 goto compare_debug_with_arg
;
3251 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
3253 goto compare_debug_with_arg
;
3260 case OPT_fcompare_debug_
:
3261 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
3262 compare_debug_with_arg
:
3263 gcc_assert (decoded
->canonical_option_num_elements
== 1);
3264 gcc_assert (arg
!= NULL
);
3269 if (compare_debug
< 0)
3270 compare_debug_opt
= NULL
;
3272 compare_debug_opt
= arg
;
3273 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
);
3279 /* Pass the rest of this option to the assembler. */
3281 /* Split the argument at commas. */
3283 for (j
= 0; arg
[j
]; j
++)
3286 add_assembler_option (arg
+ prev
, j
- prev
);
3290 /* Record the part after the last comma. */
3291 add_assembler_option (arg
+ prev
, j
- prev
);
3299 /* Pass the rest of this option to the preprocessor. */
3301 /* Split the argument at commas. */
3303 for (j
= 0; arg
[j
]; j
++)
3306 add_preprocessor_option (arg
+ prev
, j
- prev
);
3310 /* Record the part after the last comma. */
3311 add_preprocessor_option (arg
+ prev
, j
- prev
);
3319 /* Split the argument at commas. */
3321 for (j
= 0; arg
[j
]; j
++)
3324 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
3327 /* Record the part after the last comma. */
3328 add_infile (arg
+ prev
, "*");
3334 add_infile (arg
, "*");
3338 case OPT_Xpreprocessor
:
3339 add_preprocessor_option (arg
, strlen (arg
));
3343 case OPT_Xassembler
:
3344 add_assembler_option (arg
, strlen (arg
));
3349 /* POSIX allows separation of -l and the lib arg; canonicalize
3350 by concatenating -l with its arg */
3351 add_infile (concat ("-l", arg
, NULL
), "*");
3356 /* Similarly, canonicalize -L for linkers that may not accept
3357 separate arguments. */
3358 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
);
3361 case OPT_save_temps
:
3362 save_temps_flag
= SAVE_TEMPS_CWD
;
3366 case OPT_save_temps_
:
3367 if (strcmp (arg
, "cwd") == 0)
3368 save_temps_flag
= SAVE_TEMPS_CWD
;
3369 else if (strcmp (arg
, "obj") == 0
3370 || strcmp (arg
, "object") == 0)
3371 save_temps_flag
= SAVE_TEMPS_OBJ
;
3373 fatal_error ("%qs is an unknown -save-temps option",
3374 decoded
->orig_option_with_args_text
);
3377 case OPT_no_canonical_prefixes
:
3378 /* Already handled as a special case, so ignored here. */
3384 /* These options set the variables specified in common.opt
3385 automatically, but do need to be saved for spec
3391 struct user_specs
*user
= XNEW (struct user_specs
);
3393 user
->next
= (struct user_specs
*) 0;
3394 user
->filename
= arg
;
3395 if (user_specs_tail
)
3396 user_specs_tail
->next
= user
;
3398 user_specs_head
= user
;
3399 user_specs_tail
= user
;
3405 target_system_root
= arg
;
3406 target_system_root_changed
= 1;
3411 if (report_times_to_file
)
3412 fclose (report_times_to_file
);
3413 report_times_to_file
= fopen (arg
, "a");
3419 This is similar to -v except that there is no execution
3420 of the commands and the echoed arguments are quoted. It
3421 is intended for use in shell scripts to capture the
3422 driver-generated command line. */
3423 verbose_only_flag
++;
3430 size_t len
= strlen (arg
);
3432 /* Catch the case where the user has forgotten to append a
3433 directory separator to the path. Note, they may be using
3434 -B to add an executable name prefix, eg "i386-elf-", in
3435 order to distinguish between multiple installations of
3436 GCC in the same directory. Hence we must check to see
3437 if appending a directory separator actually makes a
3438 valid directory name. */
3439 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
3440 && is_directory (arg
, false))
3442 char *tmp
= XNEWVEC (char, len
+ 2);
3444 tmp
[len
] = DIR_SEPARATOR
;
3449 add_prefix (&exec_prefixes
, arg
, NULL
,
3450 PREFIX_PRIORITY_B_OPT
, 0, 0);
3451 add_prefix (&startfile_prefixes
, arg
, NULL
,
3452 PREFIX_PRIORITY_B_OPT
, 0, 0);
3453 add_prefix (&include_prefixes
, arg
, NULL
,
3454 PREFIX_PRIORITY_B_OPT
, 0, 0);
3459 case OPT_v
: /* Print our subcommands and print versions. */
3465 if (!strcmp (spec_lang
, "none"))
3466 /* Suppress the warning if -xnone comes after the last input
3467 file, because alternate command interfaces like g++ might
3468 find it useful to place -xnone after each input file. */
3471 last_language_n_infiles
= n_infiles
;
3477 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3478 arg
= convert_filename (arg
, ! have_c
, 0);
3480 /* Save the output name in case -save-temps=obj was used. */
3481 save_temps_prefix
= xstrdup (arg
);
3482 /* On some systems, ld cannot handle "-o" without a space. So
3483 split the option from its argument. */
3484 save_switch ("-o", 1, &arg
, validated
);
3487 case OPT_static_libgcc
:
3488 case OPT_shared_libgcc
:
3489 case OPT_static_libgfortran
:
3490 case OPT_static_libstdc__
:
3491 /* These are always valid, since gcc.c itself understands the
3492 first two, gfortranspec.c understands -static-libgfortran and
3493 g++spec.c understands -static-libstdc++ */
3498 /* Various driver options need no special processing at this
3499 point, having been handled in a prescan above or being
3500 handled by specs. */
3505 save_switch (decoded
->canonical_option
[0],
3506 decoded
->canonical_option_num_elements
- 1,
3507 &decoded
->canonical_option
[1], validated
);
3511 /* Put the driver's standard set of option handlers in *HANDLERS. */
3514 set_option_handlers (struct cl_option_handlers
*handlers
)
3516 handlers
->unknown_option_callback
= driver_unknown_option_callback
;
3517 handlers
->wrong_lang_callback
= driver_wrong_lang_callback
;
3518 handlers
->post_handling_callback
= driver_post_handling_callback
;
3519 handlers
->num_handlers
= 1;
3520 handlers
->handlers
[0].handler
= driver_handle_option
;
3521 handlers
->handlers
[0].mask
= CL_DRIVER
;
3524 /* Create the vector `switches' and its contents.
3525 Store its length in `n_switches'. */
3528 process_command (unsigned int decoded_options_count
,
3529 struct cl_decoded_option
*decoded_options
)
3533 const char *tooldir_prefix
;
3534 char *(*get_relative_prefix
) (const char *, const char *,
3535 const char *) = NULL
;
3536 struct cl_option_handlers handlers
;
3539 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3543 added_libraries
= 0;
3545 /* Figure compiler version from version string. */
3547 compiler_version
= temp1
= xstrdup (version_string
);
3549 for (; *temp1
; ++temp1
)
3558 /* Handle any -no-canonical-prefixes flag early, to assign the function
3559 that builds relative prefixes. This function creates default search
3560 paths that are needed later in normal option handling. */
3562 for (j
= 1; j
< decoded_options_count
; j
++)
3564 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
3566 get_relative_prefix
= make_relative_prefix_ignore_links
;
3570 if (! get_relative_prefix
)
3571 get_relative_prefix
= make_relative_prefix
;
3573 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3574 see if we can create it from the pathname specified in
3575 decoded_options[0].arg. */
3577 gcc_libexec_prefix
= standard_libexec_prefix
;
3579 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3580 if (!gcc_exec_prefix
)
3582 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3583 standard_bindir_prefix
,
3584 standard_exec_prefix
);
3585 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3586 standard_bindir_prefix
,
3587 standard_libexec_prefix
);
3588 if (gcc_exec_prefix
)
3589 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3593 /* make_relative_prefix requires a program name, but
3594 GCC_EXEC_PREFIX is typically a directory name with a trailing
3595 / (which is ignored by make_relative_prefix), so append a
3597 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3598 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
3599 standard_exec_prefix
,
3600 standard_libexec_prefix
);
3602 /* The path is unrelocated, so fallback to the original setting. */
3603 if (!gcc_libexec_prefix
)
3604 gcc_libexec_prefix
= standard_libexec_prefix
;
3610 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3611 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3612 or an automatically created GCC_EXEC_PREFIX from
3613 decoded_options[0].arg. */
3615 /* Do language-specific adjustment/addition of flags. */
3616 lang_specific_driver (&decoded_options
, &decoded_options_count
,
3619 if (gcc_exec_prefix
)
3621 int len
= strlen (gcc_exec_prefix
);
3623 if (len
> (int) sizeof ("/lib/gcc/") - 1
3624 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3626 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3627 if (IS_DIR_SEPARATOR (*temp
)
3628 && strncmp (temp
+ 1, "lib", 3) == 0
3629 && IS_DIR_SEPARATOR (temp
[4])
3630 && strncmp (temp
+ 5, "gcc", 3) == 0)
3631 len
-= sizeof ("/lib/gcc/") - 1;
3634 set_std_prefix (gcc_exec_prefix
, len
);
3635 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3636 PREFIX_PRIORITY_LAST
, 0, 0);
3637 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3638 PREFIX_PRIORITY_LAST
, 0, 0);
3641 /* COMPILER_PATH and LIBRARY_PATH have values
3642 that are lists of directory names with colons. */
3644 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3647 const char *startp
, *endp
;
3648 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3650 startp
= endp
= temp
;
3653 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3655 strncpy (nstore
, startp
, endp
- startp
);
3657 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3658 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3660 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3661 nstore
[endp
- startp
+ 1] = 0;
3664 nstore
[endp
- startp
] = 0;
3665 add_prefix (&exec_prefixes
, nstore
, 0,
3666 PREFIX_PRIORITY_LAST
, 0, 0);
3667 add_prefix (&include_prefixes
, nstore
, 0,
3668 PREFIX_PRIORITY_LAST
, 0, 0);
3671 endp
= startp
= endp
+ 1;
3678 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3679 if (temp
&& *cross_compile
== '0')
3681 const char *startp
, *endp
;
3682 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3684 startp
= endp
= temp
;
3687 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3689 strncpy (nstore
, startp
, endp
- startp
);
3691 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3692 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3694 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3695 nstore
[endp
- startp
+ 1] = 0;
3698 nstore
[endp
- startp
] = 0;
3699 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3700 PREFIX_PRIORITY_LAST
, 0, 1);
3703 endp
= startp
= endp
+ 1;
3710 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3711 GET_ENVIRONMENT (temp
, "LPATH");
3712 if (temp
&& *cross_compile
== '0')
3714 const char *startp
, *endp
;
3715 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3717 startp
= endp
= temp
;
3720 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3722 strncpy (nstore
, startp
, endp
- startp
);
3724 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3725 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3727 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3728 nstore
[endp
- startp
+ 1] = 0;
3731 nstore
[endp
- startp
] = 0;
3732 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3733 PREFIX_PRIORITY_LAST
, 0, 1);
3736 endp
= startp
= endp
+ 1;
3743 /* Process the options and store input files and switches in their
3746 last_language_n_infiles
= -1;
3748 set_option_handlers (&handlers
);
3750 for (j
= 1; j
< decoded_options_count
; j
++)
3752 switch (decoded_options
[j
].opt_index
)
3764 for (j
= 1; j
< decoded_options_count
; j
++)
3766 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
3768 const char *arg
= decoded_options
[j
].arg
;
3769 const char *p
= strrchr (arg
, '@');
3773 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3774 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
3776 /* For LTO static archive support we handle input file
3777 specifications that are composed of a filename and
3778 an offset like FNAME@OFFSET. */
3781 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
3782 && strlen (p
) == (unsigned int)consumed
)
3784 fname
= (char *)xmalloc (p
- arg
+ 1);
3785 memcpy (fname
, arg
, p
- arg
);
3786 fname
[p
- arg
] = '\0';
3787 /* Only accept non-stdin and existing FNAME parts, otherwise
3788 try with the full name. */
3789 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
3792 fname
= xstrdup (arg
);
3796 fname
= xstrdup (arg
);
3798 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
3799 perror_with_name (fname
);
3801 add_infile (arg
, spec_lang
);
3807 read_cmdline_option (&global_options
, &global_options_set
,
3808 decoded_options
+ j
, CL_DRIVER
, &handlers
,
3812 /* If -save-temps=obj and -o name, create the prefix to use for %b.
3813 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
3814 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
3816 save_temps_length
= strlen (save_temps_prefix
);
3817 temp
= strrchr (lbasename (save_temps_prefix
), '.');
3820 save_temps_length
-= strlen (temp
);
3821 save_temps_prefix
[save_temps_length
] = '\0';
3825 else if (save_temps_prefix
!= NULL
)
3827 free (save_temps_prefix
);
3828 save_temps_prefix
= NULL
;
3831 if (save_temps_flag
&& use_pipes
)
3833 /* -save-temps overrides -pipe, so that temp files are produced */
3834 if (save_temps_flag
)
3835 warning (0, "-pipe ignored because -save-temps specified");
3841 const char *gcd
= getenv ("GCC_COMPARE_DEBUG");
3843 if (gcd
&& gcd
[0] == '-')
3846 compare_debug_opt
= gcd
;
3848 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
3851 compare_debug_opt
= "-gtoggle";
3854 else if (compare_debug
< 0)
3857 gcc_assert (!compare_debug_opt
);
3860 /* Set up the search paths. We add directories that we expect to
3861 contain GNU Toolchain components before directories specified by
3862 the machine description so that we will find GNU components (like
3863 the GNU assembler) before those of the host system. */
3865 /* If we don't know where the toolchain has been installed, use the
3866 configured-in locations. */
3867 if (!gcc_exec_prefix
)
3870 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
3871 PREFIX_PRIORITY_LAST
, 1, 0);
3872 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
3873 PREFIX_PRIORITY_LAST
, 2, 0);
3874 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3875 PREFIX_PRIORITY_LAST
, 2, 0);
3877 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3878 PREFIX_PRIORITY_LAST
, 1, 0);
3881 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
3882 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3883 dir_separator_str
, NULL
);
3885 /* Look for tools relative to the location from which the driver is
3886 running, or, if that is not available, the configured prefix. */
3888 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
3889 spec_machine
, dir_separator_str
,
3890 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3892 add_prefix (&exec_prefixes
,
3893 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3894 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
3895 add_prefix (&startfile_prefixes
,
3896 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3897 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
3899 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
3900 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
3901 then consider it to relocate with the rest of the GCC installation
3902 if GCC_EXEC_PREFIX is set.
3903 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
3904 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
3906 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3907 standard_bindir_prefix
,
3908 target_system_root
);
3909 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
3911 target_system_root
= tmp_prefix
;
3912 target_system_root_changed
= 1;
3917 /* More prefixes are enabled in main, after we read the specs file
3918 and determine whether this is cross-compilation or not. */
3920 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
3921 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
3923 if (compare_debug
== 2 || compare_debug
== 3)
3926 switches
[n_switches
].part1
= concat ("fcompare-debug=",
3929 switches
[n_switches
].args
= 0;
3930 switches
[n_switches
].live_cond
= 0;
3931 switches
[n_switches
].validated
= 0;
3932 switches
[n_switches
].ordering
= 0;
3937 /* Ensure we only invoke each subprocess once. */
3938 if (print_subprocess_help
|| print_help_list
|| print_version
)
3942 /* Create a dummy input file, so that we can pass
3943 the help option on to the various sub-processes. */
3944 add_infile ("help-dummy", "c");
3948 switches
[n_switches
].part1
= 0;
3950 infiles
[n_infiles
].name
= 0;
3953 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
3954 and place that in the environment. */
3957 set_collect_gcc_options (void)
3962 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
3964 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
3965 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
3968 for (i
= 0; (int) i
< n_switches
; i
++)
3970 const char *const *args
;
3973 obstack_grow (&collect_obstack
, " ", 1);
3977 /* Ignore elided switches. */
3978 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) != 0)
3981 obstack_grow (&collect_obstack
, "'-", 2);
3982 q
= switches
[i
].part1
;
3983 while ((p
= strchr (q
, '\'')))
3985 obstack_grow (&collect_obstack
, q
, p
- q
);
3986 obstack_grow (&collect_obstack
, "'\\''", 4);
3989 obstack_grow (&collect_obstack
, q
, strlen (q
));
3990 obstack_grow (&collect_obstack
, "'", 1);
3992 for (args
= switches
[i
].args
; args
&& *args
; args
++)
3994 obstack_grow (&collect_obstack
, " '", 2);
3996 while ((p
= strchr (q
, '\'')))
3998 obstack_grow (&collect_obstack
, q
, p
- q
);
3999 obstack_grow (&collect_obstack
, "'\\''", 4);
4002 obstack_grow (&collect_obstack
, q
, strlen (q
));
4003 obstack_grow (&collect_obstack
, "'", 1);
4006 obstack_grow (&collect_obstack
, "\0", 1);
4007 xputenv (XOBFINISH (&collect_obstack
, char *));
4010 /* Process a spec string, accumulating and running commands. */
4012 /* These variables describe the input file name.
4013 input_file_number is the index on outfiles of this file,
4014 so that the output file name can be stored for later use by %o.
4015 input_basename is the start of the part of the input file
4016 sans all directory names, and basename_length is the number
4017 of characters starting there excluding the suffix .c or whatever. */
4019 static const char *gcc_input_filename
;
4020 static int input_file_number
;
4021 size_t input_filename_length
;
4022 static int basename_length
;
4023 static int suffixed_basename_length
;
4024 static const char *input_basename
;
4025 static const char *input_suffix
;
4026 #ifndef HOST_LACKS_INODE_NUMBERS
4027 static struct stat input_stat
;
4029 static int input_stat_set
;
4031 /* The compiler used to process the current input file. */
4032 static struct compiler
*input_file_compiler
;
4034 /* These are variables used within do_spec and do_spec_1. */
4036 /* Nonzero if an arg has been started and not yet terminated
4037 (with space, tab or newline). */
4038 static int arg_going
;
4040 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4041 is a temporary file name. */
4042 static int delete_this_arg
;
4044 /* Nonzero means %w has been seen; the next arg to be terminated
4045 is the output file name of this compilation. */
4046 static int this_is_output_file
;
4048 /* Nonzero means %s has been seen; the next arg to be terminated
4049 is the name of a library file and we should try the standard
4050 search dirs for it. */
4051 static int this_is_library_file
;
4053 /* Nonzero means %T has been seen; the next arg to be terminated
4054 is the name of a linker script and we should try all of the
4055 standard search dirs for it. If it is found insert a --script
4056 command line switch and then substitute the full path in place,
4057 otherwise generate an error message. */
4058 static int this_is_linker_script
;
4060 /* Nonzero means that the input of this command is coming from a pipe. */
4061 static int input_from_pipe
;
4063 /* Nonnull means substitute this for any suffix when outputting a switches
4065 static const char *suffix_subst
;
4067 /* If there is an argument being accumulated, terminate it and store it. */
4070 end_going_arg (void)
4076 obstack_1grow (&obstack
, 0);
4077 string
= XOBFINISH (&obstack
, const char *);
4078 if (this_is_library_file
)
4079 string
= find_file (string
);
4080 if (this_is_linker_script
)
4082 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4084 if (full_script_path
== NULL
)
4086 error ("unable to locate default linker script %qs in the library search paths", string
);
4087 /* Script was not found on search path. */
4090 store_arg ("--script", false, false);
4091 string
= full_script_path
;
4093 store_arg (string
, delete_this_arg
, this_is_output_file
);
4094 if (this_is_output_file
)
4095 outfiles
[input_file_number
] = string
;
4101 /* Parse the WRAPPER string which is a comma separated list of the command line
4102 and insert them into the beginning of argbuf. */
4105 insert_wrapper (const char *wrapper
)
4109 char *buf
= xstrdup (wrapper
);
4118 while ((p
= strchr (p
, ',')) != NULL
);
4120 if (argbuf_index
+ n
>= argbuf_length
)
4122 argbuf_length
= argbuf_length
* 2;
4123 while (argbuf_length
< argbuf_index
+ n
)
4125 argbuf
= XRESIZEVEC (const char *, argbuf
, argbuf_length
);
4127 for (i
= argbuf_index
- 1; i
>= 0; i
--)
4128 argbuf
[i
+ n
] = argbuf
[i
];
4141 while ((p
= strchr (p
, ',')) != NULL
);
4142 gcc_assert (i
== n
);
4146 /* Process the spec SPEC and run the commands specified therein.
4147 Returns 0 if the spec is successfully processed; -1 if failed. */
4150 do_spec (const char *spec
)
4154 value
= do_spec_2 (spec
);
4156 /* Force out any unfinished command.
4157 If -pipe, this forces out the last command if it ended in `|'. */
4160 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4163 set_collect_gcc_options ();
4165 if (argbuf_index
> 0)
4173 do_spec_2 (const char *spec
)
4179 delete_this_arg
= 0;
4180 this_is_output_file
= 0;
4181 this_is_library_file
= 0;
4182 this_is_linker_script
= 0;
4183 input_from_pipe
= 0;
4184 suffix_subst
= NULL
;
4186 result
= do_spec_1 (spec
, 0, NULL
);
4194 /* Process the given spec string and add any new options to the end
4195 of the switches/n_switches array. */
4198 do_option_spec (const char *name
, const char *spec
)
4200 unsigned int i
, value_count
, value_len
;
4201 const char *p
, *q
, *value
;
4202 char *tmp_spec
, *tmp_spec_p
;
4204 if (configure_default_options
[0].name
== NULL
)
4207 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4208 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4210 if (i
== ARRAY_SIZE (configure_default_options
))
4213 value
= configure_default_options
[i
].value
;
4214 value_len
= strlen (value
);
4216 /* Compute the size of the final spec. */
4219 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4225 /* Replace each %(VALUE) by the specified value. */
4226 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4227 + value_count
* (value_len
- strlen ("%(VALUE)")));
4228 tmp_spec_p
= tmp_spec
;
4230 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4232 memcpy (tmp_spec_p
, q
, p
- q
);
4233 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4234 memcpy (tmp_spec_p
, value
, value_len
);
4235 tmp_spec_p
+= value_len
;
4236 q
= p
+ strlen ("%(VALUE)");
4238 strcpy (tmp_spec_p
, q
);
4240 do_self_spec (tmp_spec
);
4243 /* Process the given spec string and add any new options to the end
4244 of the switches/n_switches array. */
4247 do_self_spec (const char *spec
)
4252 do_spec_1 (" ", 0, NULL
);
4254 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
4255 do_self_specs adds the replacements to switches array, so it shouldn't
4256 be processed afterwards. */
4257 for (i
= 0; i
< n_switches
; i
++)
4258 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
4259 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
4261 if (argbuf_index
> 0)
4263 const char **argbuf_copy
;
4264 struct cl_decoded_option
*decoded_options
;
4265 struct cl_option_handlers handlers
;
4266 unsigned int decoded_options_count
;
4269 /* Create a copy of argbuf with a dummy argv[0] entry for
4270 decode_cmdline_options_to_array. */
4271 argbuf_copy
= XNEWVEC (const char *, argbuf_index
+ 1);
4272 argbuf_copy
[0] = "";
4273 memcpy (argbuf_copy
+ 1, argbuf
, argbuf_index
* sizeof (const char *));
4275 decode_cmdline_options_to_array (argbuf_index
+ 1, argbuf_copy
,
4276 CL_DRIVER
, &decoded_options
,
4277 &decoded_options_count
);
4279 set_option_handlers (&handlers
);
4281 for (j
= 1; j
< decoded_options_count
; j
++)
4283 switch (decoded_options
[j
].opt_index
)
4285 case OPT_SPECIAL_input_file
:
4286 /* Specs should only generate options, not input
4288 if (strcmp (decoded_options
[j
].arg
, "-") != 0)
4289 fatal_error ("switch %qs does not start with %<-%>",
4290 decoded_options
[j
].arg
);
4292 fatal_error ("spec-generated switch is just %<-%>");
4295 case OPT_fcompare_debug_second
:
4296 case OPT_fcompare_debug
:
4297 case OPT_fcompare_debug_
:
4299 /* Avoid duplicate processing of some options from
4300 compare-debug specs; just save them here. */
4301 save_switch (decoded_options
[j
].canonical_option
[0],
4302 (decoded_options
[j
].canonical_option_num_elements
4304 &decoded_options
[j
].canonical_option
[1], false);
4308 read_cmdline_option (&global_options
, &global_options_set
,
4309 decoded_options
+ j
, CL_DRIVER
, &handlers
,
4316 switches
[n_switches
].part1
= 0;
4320 /* Callback for processing %D and %I specs. */
4322 struct spec_path_info
{
4327 bool separate_options
;
4331 spec_path (char *path
, void *data
)
4333 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
4337 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4340 if (info
->append_len
!= 0)
4342 len
= strlen (path
);
4343 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4346 if (!is_directory (path
, true))
4349 do_spec_1 (info
->option
, 1, NULL
);
4350 if (info
->separate_options
)
4351 do_spec_1 (" ", 0, NULL
);
4353 if (info
->append_len
== 0)
4355 len
= strlen (path
);
4356 save
= path
[len
- 1];
4357 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4358 path
[len
- 1] = '\0';
4361 do_spec_1 (path
, 1, NULL
);
4362 do_spec_1 (" ", 0, NULL
);
4364 /* Must not damage the original path. */
4365 if (info
->append_len
== 0)
4366 path
[len
- 1] = save
;
4371 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
4375 create_at_file (char **argv
)
4377 char *temp_file
= make_temp_file ("");
4378 char *at_argument
= concat ("@", temp_file
, NULL
);
4379 FILE *f
= fopen (temp_file
, "w");
4383 fatal_error ("could not open temporary response file %s",
4386 status
= writeargv (argv
, f
);
4389 fatal_error ("could not write to temporary response file %s",
4392 status
= fclose (f
);
4395 fatal_error ("could not close temporary response file %s",
4398 store_arg (at_argument
, 0, 0);
4400 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
4403 /* True if we should compile INFILE. */
4406 compile_input_file_p (struct infile
*infile
)
4408 if ((!infile
->language
) || (infile
->language
[0] != '*'))
4409 if (infile
->incompiler
== input_file_compiler
)
4414 /* Process the sub-spec SPEC as a portion of a larger spec.
4415 This is like processing a whole spec except that we do
4416 not initialize at the beginning and we do not supply a
4417 newline by default at the end.
4418 INSWITCH nonzero means don't process %-sequences in SPEC;
4419 in this case, % is treated as an ordinary character.
4420 This is used while substituting switches.
4421 INSWITCH nonzero also causes SPC not to terminate an argument.
4423 Value is zero unless a line was finished
4424 and the command on that line reported an error. */
4427 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4429 const char *p
= spec
;
4435 /* If substituting a switch, treat all chars like letters.
4436 Otherwise, NL, SPC, TAB and % are special. */
4437 switch (inswitch
? 'a' : c
)
4442 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4444 /* A `|' before the newline means use a pipe here,
4445 but only if -pipe was specified.
4446 Otherwise, execute now and don't pass the `|' as an arg. */
4449 input_from_pipe
= 1;
4456 set_collect_gcc_options ();
4458 if (argbuf_index
> 0)
4464 /* Reinitialize for a new command, and for a new argument. */
4467 delete_this_arg
= 0;
4468 this_is_output_file
= 0;
4469 this_is_library_file
= 0;
4470 this_is_linker_script
= 0;
4471 input_from_pipe
= 0;
4478 obstack_1grow (&obstack
, c
);
4486 /* Reinitialize for a new argument. */
4487 delete_this_arg
= 0;
4488 this_is_output_file
= 0;
4489 this_is_library_file
= 0;
4490 this_is_linker_script
= 0;
4497 fatal_error ("spec %qs invalid", spec
);
4500 if (save_temps_length
)
4501 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4503 obstack_grow (&obstack
, input_basename
, basename_length
);
4504 if (compare_debug
< 0)
4505 obstack_grow (&obstack
, ".gk", 3);
4510 if (save_temps_length
)
4511 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4513 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4514 if (compare_debug
< 0)
4515 obstack_grow (&obstack
, ".gk", 3);
4520 delete_this_arg
= 2;
4523 /* Dump out the directories specified with LIBRARY_PATH,
4524 followed by the absolute directories
4525 that we search for startfiles. */
4528 struct spec_path_info info
;
4531 info
.append_len
= 0;
4532 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4533 /* Used on systems which record the specified -L dirs
4534 and use them to search for dynamic linking.
4535 Relative directories always come from -B,
4536 and it is better not to use them for searching
4537 at run time. In particular, stage1 loses. */
4538 info
.omit_relative
= true;
4540 info
.omit_relative
= false;
4542 info
.separate_options
= false;
4544 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
4549 /* %efoo means report an error with `foo' as error message
4550 and don't execute any more commands for this file. */
4554 while (*p
!= 0 && *p
!= '\n')
4556 buf
= (char *) alloca (p
- q
+ 1);
4557 strncpy (buf
, q
, p
- q
);
4559 error ("%s", _(buf
));
4564 /* %nfoo means report a notice with `foo' on stderr. */
4568 while (*p
!= 0 && *p
!= '\n')
4570 buf
= (char *) alloca (p
- q
+ 1);
4571 strncpy (buf
, q
, p
- q
);
4573 inform (0, "%s", _(buf
));
4583 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4584 defined, and it is not a directory, and it is
4585 writable, use it. Otherwise, treat this like any
4586 other temporary file. */
4588 if ((!save_temps_flag
)
4589 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4590 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4592 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4593 strlen (HOST_BIT_BUCKET
));
4594 delete_this_arg
= 0;
4599 goto create_temp_file
;
4603 obstack_1grow (&obstack
, '-');
4604 delete_this_arg
= 0;
4607 /* consume suffix */
4608 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4610 if (p
[0] == '%' && p
[1] == 'O')
4615 goto create_temp_file
;
4619 /* consume suffix */
4620 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4622 if (p
[0] == '%' && p
[1] == 'O')
4627 goto create_temp_file
;
4633 struct temp_name
*t
;
4635 const char *suffix
= p
;
4636 char *saved_suffix
= NULL
;
4638 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4640 suffix_length
= p
- suffix
;
4641 if (p
[0] == '%' && p
[1] == 'O')
4644 /* We don't support extra suffix characters after %O. */
4645 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
4646 fatal_error ("spec %qs has invalid %<%%0%c%>", spec
, *p
);
4647 if (suffix_length
== 0)
4648 suffix
= TARGET_OBJECT_SUFFIX
;
4652 = XNEWVEC (char, suffix_length
4653 + strlen (TARGET_OBJECT_SUFFIX
));
4654 strncpy (saved_suffix
, suffix
, suffix_length
);
4655 strcpy (saved_suffix
+ suffix_length
,
4656 TARGET_OBJECT_SUFFIX
);
4658 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4661 if (compare_debug
< 0)
4663 suffix
= concat (".gk", suffix
, NULL
);
4667 /* If -save-temps=obj and -o were specified, use that for the
4669 if (save_temps_length
)
4672 temp_filename_length
4673 = save_temps_length
+ suffix_length
+ 1;
4674 tmp
= (char *) alloca (temp_filename_length
);
4675 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
4676 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
4677 tmp
[save_temps_length
+ suffix_length
] = '\0';
4678 temp_filename
= save_string (tmp
,
4679 temp_filename_length
+ 1);
4680 obstack_grow (&obstack
, temp_filename
,
4681 temp_filename_length
);
4683 delete_this_arg
= 0;
4687 /* If the gcc_input_filename has the same suffix specified
4688 for the %g, %u, or %U, and -save-temps is specified,
4689 we could end up using that file as an intermediate
4690 thus clobbering the user's source file (.e.g.,
4691 gcc -save-temps foo.s would clobber foo.s with the
4692 output of cpp0). So check for this condition and
4693 generate a temp file as the intermediate. */
4695 if (save_temps_flag
)
4698 temp_filename_length
= basename_length
+ suffix_length
+ 1;
4699 tmp
= (char *) alloca (temp_filename_length
);
4700 memcpy (tmp
, input_basename
, basename_length
);
4701 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
4702 tmp
[basename_length
+ suffix_length
] = '\0';
4703 temp_filename
= tmp
;
4705 if (strcmp (temp_filename
, gcc_input_filename
) != 0)
4707 #ifndef HOST_LACKS_INODE_NUMBERS
4708 struct stat st_temp
;
4710 /* Note, set_input() resets input_stat_set to 0. */
4711 if (input_stat_set
== 0)
4713 input_stat_set
= stat (gcc_input_filename
,
4715 if (input_stat_set
>= 0)
4719 /* If we have the stat for the gcc_input_filename
4720 and we can do the stat for the temp_filename
4721 then the they could still refer to the same
4722 file if st_dev/st_ino's are the same. */
4723 if (input_stat_set
!= 1
4724 || stat (temp_filename
, &st_temp
) < 0
4725 || input_stat
.st_dev
!= st_temp
.st_dev
4726 || input_stat
.st_ino
!= st_temp
.st_ino
)
4728 /* Just compare canonical pathnames. */
4729 char* input_realname
= lrealpath (gcc_input_filename
);
4730 char* temp_realname
= lrealpath (temp_filename
);
4731 bool files_differ
= strcmp (input_realname
, temp_realname
);
4732 free (input_realname
);
4733 free (temp_realname
);
4737 temp_filename
= save_string (temp_filename
,
4738 temp_filename_length
+ 1);
4739 obstack_grow (&obstack
, temp_filename
,
4740 temp_filename_length
);
4742 delete_this_arg
= 0;
4748 /* See if we already have an association of %g/%u/%U and
4750 for (t
= temp_names
; t
; t
= t
->next
)
4751 if (t
->length
== suffix_length
4752 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4753 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4756 /* Make a new association if needed. %u and %j
4758 if (t
== 0 || c
== 'u' || c
== 'j')
4762 t
= XNEW (struct temp_name
);
4763 t
->next
= temp_names
;
4766 t
->length
= suffix_length
;
4769 t
->suffix
= saved_suffix
;
4770 saved_suffix
= NULL
;
4773 t
->suffix
= save_string (suffix
, suffix_length
);
4774 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4775 temp_filename
= make_temp_file (t
->suffix
);
4776 temp_filename_length
= strlen (temp_filename
);
4777 t
->filename
= temp_filename
;
4778 t
->filename_length
= temp_filename_length
;
4782 free (saved_suffix
);
4784 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4785 delete_this_arg
= 1;
4793 if (at_file_supplied
)
4795 /* We are going to expand `%i' to `@FILE', where FILE
4796 is a newly-created temporary filename. The filenames
4797 that would usually be expanded in place of %o will be
4798 written to the temporary file. */
4803 for (i
= 0; i
< n_infiles
; i
++)
4804 if (compile_input_file_p (&infiles
[i
]))
4807 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
4809 /* Copy the strings over. */
4810 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
4811 if (compile_input_file_p (&infiles
[i
]))
4813 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
4814 infiles
[i
].compiled
= true;
4819 create_at_file (argv
);
4822 for (i
= 0; (int) i
< n_infiles
; i
++)
4823 if (compile_input_file_p (&infiles
[i
]))
4825 store_arg (infiles
[i
].name
, 0, 0);
4826 infiles
[i
].compiled
= true;
4831 obstack_grow (&obstack
, gcc_input_filename
,
4832 input_filename_length
);
4839 struct spec_path_info info
;
4843 do_spec_1 ("-imultilib", 1, NULL
);
4844 /* Make this a separate argument. */
4845 do_spec_1 (" ", 0, NULL
);
4846 do_spec_1 (multilib_dir
, 1, NULL
);
4847 do_spec_1 (" ", 0, NULL
);
4850 if (gcc_exec_prefix
)
4852 do_spec_1 ("-iprefix", 1, NULL
);
4853 /* Make this a separate argument. */
4854 do_spec_1 (" ", 0, NULL
);
4855 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4856 do_spec_1 (" ", 0, NULL
);
4859 if (target_system_root_changed
||
4860 (target_system_root
&& target_sysroot_hdrs_suffix
))
4862 do_spec_1 ("-isysroot", 1, NULL
);
4863 /* Make this a separate argument. */
4864 do_spec_1 (" ", 0, NULL
);
4865 do_spec_1 (target_system_root
, 1, NULL
);
4866 if (target_sysroot_hdrs_suffix
)
4867 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4868 do_spec_1 (" ", 0, NULL
);
4871 info
.option
= "-isystem";
4872 info
.append
= "include";
4873 info
.append_len
= strlen (info
.append
);
4874 info
.omit_relative
= false;
4875 info
.separate_options
= true;
4877 for_each_path (&include_prefixes
, false, info
.append_len
,
4880 info
.append
= "include-fixed";
4881 if (*sysroot_hdrs_suffix_spec
)
4882 info
.append
= concat (info
.append
, dir_separator_str
,
4883 multilib_dir
, NULL
);
4884 info
.append_len
= strlen (info
.append
);
4885 for_each_path (&include_prefixes
, false, info
.append_len
,
4892 int max
= n_infiles
;
4893 max
+= lang_specific_extra_outfiles
;
4895 if (HAVE_GNU_LD
&& at_file_supplied
)
4897 /* We are going to expand `%o' to `@FILE', where FILE
4898 is a newly-created temporary filename. The filenames
4899 that would usually be expanded in place of %o will be
4900 written to the temporary file. */
4905 /* Convert OUTFILES into a form suitable for writeargv. */
4907 /* Determine how many are non-NULL. */
4908 for (n_files
= 0, i
= 0; i
< max
; i
++)
4909 n_files
+= outfiles
[i
] != NULL
;
4911 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
4913 /* Copy the strings over. */
4914 for (i
= 0, j
= 0; i
< max
; i
++)
4917 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
4922 create_at_file (argv
);
4925 for (i
= 0; i
< max
; i
++)
4927 store_arg (outfiles
[i
], 0, 0);
4932 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4937 this_is_library_file
= 1;
4941 this_is_linker_script
= 1;
4945 outfiles
[input_file_number
] = NULL
;
4949 this_is_output_file
= 1;
4954 int cur_index
= argbuf_index
;
4955 /* Handle the {...} following the %W. */
4957 fatal_error ("spec %qs has invalid %<%%W%c%>", spec
, *p
);
4958 p
= handle_braces (p
+ 1);
4962 /* If any args were output, mark the last one for deletion
4964 if (argbuf_index
!= cur_index
)
4965 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4969 /* %x{OPTION} records OPTION for %X to output. */
4975 /* Skip past the option value and make a copy. */
4977 fatal_error ("spec %qs has invalid %<%%x%c%>", spec
, *p
);
4980 string
= save_string (p1
+ 1, p
- p1
- 2);
4982 /* See if we already recorded this option. */
4983 for (i
= 0; i
< n_linker_options
; i
++)
4984 if (! strcmp (string
, linker_options
[i
]))
4990 /* This option is new; add it. */
4991 add_linker_option (string
, strlen (string
));
4995 /* Dump out the options accumulated previously using %x. */
4997 for (i
= 0; i
< n_linker_options
; i
++)
4999 do_spec_1 (linker_options
[i
], 1, NULL
);
5000 /* Make each accumulated option a separate argument. */
5001 do_spec_1 (" ", 0, NULL
);
5005 /* Dump out the options accumulated previously using -Wa,. */
5007 for (i
= 0; i
< n_assembler_options
; i
++)
5009 do_spec_1 (assembler_options
[i
], 1, NULL
);
5010 /* Make each accumulated option a separate argument. */
5011 do_spec_1 (" ", 0, NULL
);
5015 /* Dump out the options accumulated previously using -Wp,. */
5017 for (i
= 0; i
< n_preprocessor_options
; i
++)
5019 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
5020 /* Make each accumulated option a separate argument. */
5021 do_spec_1 (" ", 0, NULL
);
5025 /* Here are digits and numbers that just process
5026 a certain constant string as a spec. */
5029 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5035 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5041 value
= do_spec_1 (asm_spec
, 0, NULL
);
5047 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5054 const char *const spec
5055 = (input_file_compiler
->cpp_spec
5056 ? input_file_compiler
->cpp_spec
5058 value
= do_spec_1 (spec
, 0, NULL
);
5065 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5071 value
= do_spec_1 (link_spec
, 0, NULL
);
5077 value
= do_spec_1 (lib_spec
, 0, NULL
);
5083 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5089 /* We assume there is a directory
5090 separator at the end of this string. */
5091 if (target_system_root
)
5093 obstack_grow (&obstack
, target_system_root
,
5094 strlen (target_system_root
));
5095 if (target_sysroot_suffix
)
5096 obstack_grow (&obstack
, target_sysroot_suffix
,
5097 strlen (target_sysroot_suffix
));
5102 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5107 /* Here we define characters other than letters and digits. */
5110 p
= handle_braces (p
);
5116 p
= handle_spec_function (p
);
5122 obstack_1grow (&obstack
, '%');
5129 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5131 suffix_subst
= save_string (p
- 1, len
+ 1);
5136 /* Henceforth ignore the option(s) matching the pattern
5141 int have_wildcard
= 0;
5144 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5147 if (p
[len
-1] == '*')
5150 for (i
= 0; i
< n_switches
; i
++)
5151 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5152 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5154 switches
[i
].live_cond
|= SWITCH_IGNORE
;
5155 switches
[i
].validated
= 1;
5163 if (soft_matched_part
)
5165 do_spec_1 (soft_matched_part
, 1, NULL
);
5166 do_spec_1 (" ", 0, NULL
);
5169 /* Catch the case where a spec string contains something like
5170 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5171 hand side of the :. */
5172 error ("spec failure: %<%%*%> has not been initialized by pattern match");
5175 /* Process a string found as the value of a spec given by name.
5176 This feature allows individual machine descriptions
5177 to add and use their own specs.
5178 %[...] modifies -D options the way %P does;
5179 %(...) uses the spec unmodified. */
5181 warning (0, "use of obsolete %%[ operator in specs");
5184 const char *name
= p
;
5185 struct spec_list
*sl
;
5188 /* The string after the S/P is the name of a spec that is to be
5190 while (*p
&& *p
!= ')' && *p
!= ']')
5193 /* See if it's in the list. */
5194 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5195 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5197 name
= *(sl
->ptr_spec
);
5199 fnotice (stderr
, "Processing spec %c%s%c, which is '%s'\n",
5200 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5209 value
= do_spec_1 (name
, 0, NULL
);
5215 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
5217 const char *y
= name
;
5220 /* Copy all of NAME into BUF, but put __ after
5221 every -D and at the end of each arg. */
5224 if (! strncmp (y
, "-D", 2))
5235 && (*y
== ' ' || *y
== '\t' || *y
== '='
5236 || *y
== '}' || *y
== 0))
5249 value
= do_spec_1 (buf
, 0, NULL
);
5255 /* Discard the closing paren or bracket. */
5262 error ("spec failure: unrecognized spec option %qc", c
);
5268 /* Backslash: treat next character as ordinary. */
5273 /* Ordinary character: put it into the current argument. */
5274 obstack_1grow (&obstack
, c
);
5278 /* End of string. If we are processing a spec function, we need to
5279 end any pending argument. */
5280 if (processing_spec_function
)
5286 /* Look up a spec function. */
5288 static const struct spec_function
*
5289 lookup_spec_function (const char *name
)
5291 const struct spec_function
*sf
;
5293 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5294 if (strcmp (sf
->name
, name
) == 0)
5300 /* Evaluate a spec function. */
5303 eval_spec_function (const char *func
, const char *args
)
5305 const struct spec_function
*sf
;
5306 const char *funcval
;
5308 /* Saved spec processing context. */
5309 int save_argbuf_index
;
5310 int save_argbuf_length
;
5311 const char **save_argbuf
;
5314 int save_delete_this_arg
;
5315 int save_this_is_output_file
;
5316 int save_this_is_library_file
;
5317 int save_input_from_pipe
;
5318 int save_this_is_linker_script
;
5319 const char *save_suffix_subst
;
5322 sf
= lookup_spec_function (func
);
5324 fatal_error ("unknown spec function %qs", func
);
5326 /* Push the spec processing context. */
5327 save_argbuf_index
= argbuf_index
;
5328 save_argbuf_length
= argbuf_length
;
5329 save_argbuf
= argbuf
;
5331 save_arg_going
= arg_going
;
5332 save_delete_this_arg
= delete_this_arg
;
5333 save_this_is_output_file
= this_is_output_file
;
5334 save_this_is_library_file
= this_is_library_file
;
5335 save_this_is_linker_script
= this_is_linker_script
;
5336 save_input_from_pipe
= input_from_pipe
;
5337 save_suffix_subst
= suffix_subst
;
5339 /* Create a new spec processing context, and build the function
5343 if (do_spec_2 (args
) < 0)
5344 fatal_error ("error in args to spec function %qs", func
);
5346 /* argbuf_index is an index for the next argument to be inserted, and
5347 so contains the count of the args already inserted. */
5349 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5351 /* Pop the spec processing context. */
5352 argbuf_index
= save_argbuf_index
;
5353 argbuf_length
= save_argbuf_length
;
5355 argbuf
= save_argbuf
;
5357 arg_going
= save_arg_going
;
5358 delete_this_arg
= save_delete_this_arg
;
5359 this_is_output_file
= save_this_is_output_file
;
5360 this_is_library_file
= save_this_is_library_file
;
5361 this_is_linker_script
= save_this_is_linker_script
;
5362 input_from_pipe
= save_input_from_pipe
;
5363 suffix_subst
= save_suffix_subst
;
5368 /* Handle a spec function call of the form:
5372 ARGS is processed as a spec in a separate context and split into an
5373 argument vector in the normal fashion. The function returns a string
5374 containing a spec which we then process in the caller's context, or
5375 NULL if no processing is required. */
5378 handle_spec_function (const char *p
)
5381 const char *endp
, *funcval
;
5384 processing_spec_function
++;
5386 /* Get the function name. */
5387 for (endp
= p
; *endp
!= '\0'; endp
++)
5389 if (*endp
== '(') /* ) */
5391 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5392 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5393 fatal_error ("malformed spec function name");
5395 if (*endp
!= '(') /* ) */
5396 fatal_error ("no arguments for spec function");
5397 func
= save_string (p
, endp
- p
);
5400 /* Get the arguments. */
5401 for (count
= 0; *endp
!= '\0'; endp
++)
5410 else if (*endp
== '(') /* ) */
5415 fatal_error ("malformed spec function arguments");
5416 args
= save_string (p
, endp
- p
);
5419 /* p now points to just past the end of the spec function expression. */
5421 funcval
= eval_spec_function (func
, args
);
5422 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5428 processing_spec_function
--;
5433 /* Inline subroutine of handle_braces. Returns true if the current
5434 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5436 input_suffix_matches (const char *atom
, const char *end_atom
)
5438 return (input_suffix
5439 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5440 && input_suffix
[end_atom
- atom
] == '\0');
5443 /* Subroutine of handle_braces. Returns true if the current
5444 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
5446 input_spec_matches (const char *atom
, const char *end_atom
)
5448 return (input_file_compiler
5449 && input_file_compiler
->suffix
5450 && input_file_compiler
->suffix
[0] != '\0'
5451 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
5453 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
5456 /* Subroutine of handle_braces. Returns true if a switch
5457 matching the atom bracketed by ATOM and END_ATOM appeared on the
5460 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5463 int len
= end_atom
- atom
;
5464 int plen
= starred
? len
: -1;
5466 for (i
= 0; i
< n_switches
; i
++)
5467 if (!strncmp (switches
[i
].part1
, atom
, len
)
5468 && (starred
|| switches
[i
].part1
[len
] == '\0')
5469 && check_live_switch (i
, plen
))
5475 /* Inline subroutine of handle_braces. Mark all of the switches which
5476 match ATOM (extends to END_ATOM; STARRED indicates whether there
5477 was a star after the atom) for later processing. */
5479 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5482 int len
= end_atom
- atom
;
5483 int plen
= starred
? len
: -1;
5485 for (i
= 0; i
< n_switches
; i
++)
5486 if (!strncmp (switches
[i
].part1
, atom
, len
)
5487 && (starred
|| switches
[i
].part1
[len
] == '\0')
5488 && check_live_switch (i
, plen
))
5489 switches
[i
].ordering
= 1;
5492 /* Inline subroutine of handle_braces. Process all the currently
5493 marked switches through give_switch, and clear the marks. */
5495 process_marked_switches (void)
5499 for (i
= 0; i
< n_switches
; i
++)
5500 if (switches
[i
].ordering
== 1)
5502 switches
[i
].ordering
= 0;
5507 /* Handle a %{ ... } construct. P points just inside the leading {.
5508 Returns a pointer one past the end of the brace block, or 0
5509 if we call do_spec_1 and that returns -1. */
5512 handle_braces (const char *p
)
5514 const char *atom
, *end_atom
;
5515 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5516 const char *orig
= p
;
5524 bool a_must_be_last
= false;
5525 bool ordered_set
= false;
5526 bool disjunct_set
= false;
5527 bool disj_matched
= false;
5528 bool disj_starred
= true;
5529 bool n_way_choice
= false;
5530 bool n_way_matched
= false;
5532 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5539 /* Scan one "atom" (S in the description above of %{}, possibly
5540 with '!', '.', '@', ',', or '*' modifiers). */
5542 a_is_suffix
= false;
5543 a_is_starred
= false;
5544 a_is_negated
= false;
5545 a_is_spectype
= false;
5549 p
++, a_is_negated
= true;
5553 p
++, a_is_suffix
= true;
5555 p
++, a_is_spectype
= true;
5558 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5559 || *p
== ',' || *p
== '.' || *p
== '@')
5564 p
++, a_is_starred
= 1;
5570 /* Substitute the switch(es) indicated by the current atom. */
5572 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5573 || a_is_spectype
|| atom
== end_atom
)
5576 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5579 process_marked_switches ();
5583 /* Substitute some text if the current atom appears as a switch
5585 disjunct_set
= true;
5589 if (atom
== end_atom
)
5591 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5592 || a_is_negated
|| a_is_suffix
|| a_is_spectype
5596 /* An empty term may appear as the last choice of an
5597 N-way choice set; it means "otherwise". */
5598 a_must_be_last
= true;
5599 disj_matched
= !n_way_matched
;
5600 disj_starred
= false;
5604 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
5608 disj_starred
= false;
5610 /* Don't bother testing this atom if we already have a
5612 if (!disj_matched
&& !n_way_matched
)
5615 a_matched
= input_suffix_matches (atom
, end_atom
);
5616 else if (a_is_spectype
)
5617 a_matched
= input_spec_matches (atom
, end_atom
);
5619 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5621 if (a_matched
!= a_is_negated
)
5623 disj_matched
= true;
5625 d_end_atom
= end_atom
;
5632 /* Found the body, that is, the text to substitute if the
5633 current disjunction matches. */
5634 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5635 disj_matched
&& !n_way_matched
);
5639 /* If we have an N-way choice, reset state for the next
5643 n_way_choice
= true;
5644 n_way_matched
|= disj_matched
;
5645 disj_matched
= false;
5646 disj_starred
= true;
5647 d_atom
= d_end_atom
= NULL
;
5656 while (*p
++ != '}');
5661 fatal_error ("braced spec %qs is invalid at %qc", orig
, *p
);
5666 /* Subroutine of handle_braces. Scan and process a brace substitution body
5667 (X in the description of %{} syntax). P points one past the colon;
5668 ATOM and END_ATOM bracket the first atom which was found to be true
5669 (present) in the current disjunction; STARRED indicates whether all
5670 the atoms in the current disjunction were starred (for syntax validation);
5671 MATCHED indicates whether the disjunction matched or not, and therefore
5672 whether or not the body is to be processed through do_spec_1 or just
5673 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5677 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5678 int starred
, int matched
)
5680 const char *body
, *end_body
;
5681 unsigned int nesting_level
;
5682 bool have_subst
= false;
5684 /* Locate the closing } or ;, honoring nested braces.
5685 Trim trailing whitespace. */
5694 if (!--nesting_level
)
5697 else if (*p
== ';' && nesting_level
== 1)
5699 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5701 else if (*p
== '\0')
5707 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5710 if (have_subst
&& !starred
)
5715 /* Copy the substitution body to permanent storage and execute it.
5716 If have_subst is false, this is a simple matter of running the
5717 body through do_spec_1... */
5718 char *string
= save_string (body
, end_body
- body
);
5721 if (do_spec_1 (string
, 0, NULL
) < 0)
5726 /* ... but if have_subst is true, we have to process the
5727 body once for each matching switch, with %* set to the
5728 variant part of the switch. */
5729 unsigned int hard_match_len
= end_atom
- atom
;
5732 for (i
= 0; i
< n_switches
; i
++)
5733 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5734 && check_live_switch (i
, hard_match_len
))
5736 if (do_spec_1 (string
, 0,
5737 &switches
[i
].part1
[hard_match_len
]) < 0)
5739 /* Pass any arguments this switch has. */
5741 suffix_subst
= NULL
;
5749 fatal_error ("braced spec body %qs is invalid", body
);
5752 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5753 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5754 spec, or -1 if either exact match or %* is used.
5756 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5757 whose value does not begin with "no-" is obsoleted by the same value
5758 with the "no-", similarly for a switch with the "no-" prefix. */
5761 check_live_switch (int switchnum
, int prefix_length
)
5763 const char *name
= switches
[switchnum
].part1
;
5766 /* If we already processed this switch and determined if it was
5767 live or not, return our past determination. */
5768 if (switches
[switchnum
].live_cond
!= 0)
5769 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
5770 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
5771 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
5774 /* In the common case of {<at-most-one-letter>*}, a negating
5775 switch would always match, so ignore that case. We will just
5776 send the conflicting switches to the compiler phase. */
5777 if (prefix_length
>= 0 && prefix_length
<= 1)
5780 /* Now search for duplicate in a manner that depends on the name. */
5784 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5785 if (switches
[i
].part1
[0] == 'O')
5787 switches
[switchnum
].validated
= 1;
5788 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5793 case 'W': case 'f': case 'm':
5794 if (! strncmp (name
+ 1, "no-", 3))
5796 /* We have Xno-YYY, search for XYYY. */
5797 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5798 if (switches
[i
].part1
[0] == name
[0]
5799 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5801 switches
[switchnum
].validated
= 1;
5802 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5808 /* We have XYYY, search for Xno-YYY. */
5809 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5810 if (switches
[i
].part1
[0] == name
[0]
5811 && switches
[i
].part1
[1] == 'n'
5812 && switches
[i
].part1
[2] == 'o'
5813 && switches
[i
].part1
[3] == '-'
5814 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5816 switches
[switchnum
].validated
= 1;
5817 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5824 /* Otherwise the switch is live. */
5825 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
5829 /* Pass a switch to the current accumulating command
5830 in the same form that we received it.
5831 SWITCHNUM identifies the switch; it is an index into
5832 the vector of switches gcc received, which is `switches'.
5833 This cannot fail since it never finishes a command line.
5835 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5838 give_switch (int switchnum
, int omit_first_word
)
5840 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
5843 if (!omit_first_word
)
5845 do_spec_1 ("-", 0, NULL
);
5846 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5849 if (switches
[switchnum
].args
!= 0)
5852 for (p
= switches
[switchnum
].args
; *p
; p
++)
5854 const char *arg
= *p
;
5856 do_spec_1 (" ", 0, NULL
);
5859 unsigned length
= strlen (arg
);
5862 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5863 if (arg
[length
] == '.')
5865 (CONST_CAST(char *, arg
))[length
] = 0;
5869 do_spec_1 (arg
, 1, NULL
);
5871 (CONST_CAST(char *, arg
))[length
] = '.';
5872 do_spec_1 (suffix_subst
, 1, NULL
);
5875 do_spec_1 (arg
, 1, NULL
);
5879 do_spec_1 (" ", 0, NULL
);
5880 switches
[switchnum
].validated
= 1;
5883 /* Search for a file named NAME trying various prefixes including the
5884 user's -B prefix and some standard ones.
5885 Return the absolute file name found. If nothing is found, return NAME. */
5888 find_file (const char *name
)
5890 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
5891 return newname
? newname
: name
;
5894 /* Determine whether a directory exists. If LINKER, return 0 for
5895 certain fixed names not needed by the linker. */
5898 is_directory (const char *path1
, bool linker
)
5905 /* Ensure the string ends with "/.". The resulting path will be a
5906 directory even if the given path is a symbolic link. */
5907 len1
= strlen (path1
);
5908 path
= (char *) alloca (3 + len1
);
5909 memcpy (path
, path1
, len1
);
5911 if (!IS_DIR_SEPARATOR (cp
[-1]))
5912 *cp
++ = DIR_SEPARATOR
;
5916 /* Exclude directories that the linker is known to search. */
5918 && IS_DIR_SEPARATOR (path
[0])
5920 && strncmp (path
+ 1, "lib", 3) == 0)
5922 && strncmp (path
+ 1, "usr", 3) == 0
5923 && IS_DIR_SEPARATOR (path
[4])
5924 && strncmp (path
+ 5, "lib", 3) == 0)))
5927 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5930 /* Set up the various global variables to indicate that we're processing
5931 the input file named FILENAME. */
5934 set_input (const char *filename
)
5938 gcc_input_filename
= filename
;
5939 input_filename_length
= strlen (gcc_input_filename
);
5940 input_basename
= lbasename (gcc_input_filename
);
5942 /* Find a suffix starting with the last period,
5943 and set basename_length to exclude that suffix. */
5944 basename_length
= strlen (input_basename
);
5945 suffixed_basename_length
= basename_length
;
5946 p
= input_basename
+ basename_length
;
5947 while (p
!= input_basename
&& *p
!= '.')
5949 if (*p
== '.' && p
!= input_basename
)
5951 basename_length
= p
- input_basename
;
5952 input_suffix
= p
+ 1;
5957 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
5958 we will need to do a stat on the gcc_input_filename. The
5959 INPUT_STAT_SET signals that the stat is needed. */
5963 /* On fatal signals, delete all the temporary files. */
5966 fatal_signal (int signum
)
5968 signal (signum
, SIG_DFL
);
5969 delete_failure_queue ();
5970 delete_temp_files ();
5971 /* Get the same signal again, this time not handled,
5972 so its normal effect occurs. */
5973 kill (getpid (), signum
);
5976 /* Compare the contents of the two files named CMPFILE[0] and
5977 CMPFILE[1]. Return zero if they're identical, nonzero
5981 compare_files (char *cmpfile
[])
5984 FILE *temp
[2] = { NULL
, NULL
};
5990 void *map
[2] = { NULL
, NULL
};
5992 for (i
= 0; i
< 2; i
++)
5996 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
5998 error ("%s: could not determine length of compare-debug file %s",
5999 gcc_input_filename
, cmpfile
[i
]);
6004 length
[i
] = st
.st_size
;
6007 if (!ret
&& length
[0] != length
[1])
6009 error ("%s: -fcompare-debug failure (length)", gcc_input_filename
);
6014 for (i
= 0; i
< 2; i
++)
6016 int fd
= open (cmpfile
[i
], O_RDONLY
);
6019 error ("%s: could not open compare-debug file %s",
6020 gcc_input_filename
, cmpfile
[i
]);
6025 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
6028 if (map
[i
] == (void *) MAP_FAILED
)
6037 if (memcmp (map
[0], map
[1], length
[0]) != 0)
6039 error ("%s: -fcompare-debug failure", gcc_input_filename
);
6044 for (i
= 0; i
< 2; i
++)
6046 munmap ((caddr_t
) map
[i
], length
[i
]);
6055 for (i
= 0; i
< 2; i
++)
6057 temp
[i
] = fopen (cmpfile
[i
], "r");
6060 error ("%s: could not open compare-debug file %s",
6061 gcc_input_filename
, cmpfile
[i
]);
6067 if (!ret
&& temp
[0] && temp
[1])
6071 c0
= fgetc (temp
[0]);
6072 c1
= fgetc (temp
[1]);
6076 error ("%s: -fcompare-debug failure",
6077 gcc_input_filename
);
6086 for (i
= 1; i
>= 0; i
--)
6095 extern int main (int, char **);
6098 main (int argc
, char **argv
)
6102 int linker_was_run
= 0;
6103 int lang_n_infiles
= 0;
6104 int num_linker_inputs
= 0;
6105 char *explicit_link_files
;
6108 struct user_specs
*uptr
;
6109 char **old_argv
= argv
;
6110 struct cl_decoded_option
*decoded_options
;
6111 unsigned int decoded_options_count
;
6113 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6114 on ?: in file-scope variable initializations. */
6115 asm_debug
= ASM_DEBUG_SPEC
;
6117 p
= argv
[0] + strlen (argv
[0]);
6118 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6122 xmalloc_set_program_name (progname
);
6124 expandargv (&argc
, &argv
);
6126 /* Determine if any expansions were made. */
6127 if (argv
!= old_argv
)
6128 at_file_supplied
= true;
6130 global_options
= global_options_init
;
6132 decode_cmdline_options_to_array (argc
, CONST_CAST2 (const char **, char **,
6135 &decoded_options
, &decoded_options_count
);
6137 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6138 /* Perform host dependent initialization when needed. */
6139 GCC_DRIVER_HOST_INITIALIZATION
;
6142 /* Unlock the stdio streams. */
6143 unlock_std_streams ();
6145 gcc_init_libintl ();
6147 diagnostic_initialize (global_dc
, 0);
6148 if (atexit (delete_temp_files
) != 0)
6149 fatal_error ("atexit failed");
6151 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6152 signal (SIGINT
, fatal_signal
);
6154 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6155 signal (SIGHUP
, fatal_signal
);
6157 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6158 signal (SIGTERM
, fatal_signal
);
6160 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6161 signal (SIGPIPE
, fatal_signal
);
6164 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6165 receive the signal. A different setting is inheritable */
6166 signal (SIGCHLD
, SIG_DFL
);
6169 /* Allocate the argument vector. */
6172 obstack_init (&obstack
);
6174 /* Build multilib_select, et. al from the separate lines that make up each
6175 multilib selection. */
6177 const char *const *q
= multilib_raw
;
6180 obstack_init (&multilib_obstack
);
6181 while ((p
= *q
++) != (char *) 0)
6182 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6184 obstack_1grow (&multilib_obstack
, 0);
6185 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6187 q
= multilib_matches_raw
;
6188 while ((p
= *q
++) != (char *) 0)
6189 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6191 obstack_1grow (&multilib_obstack
, 0);
6192 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6194 q
= multilib_exclusions_raw
;
6195 while ((p
= *q
++) != (char *) 0)
6196 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6198 obstack_1grow (&multilib_obstack
, 0);
6199 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6202 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6205 obstack_1grow (&multilib_obstack
, ' ');
6206 obstack_grow (&multilib_obstack
,
6207 multilib_defaults_raw
[i
],
6208 strlen (multilib_defaults_raw
[i
]));
6212 obstack_1grow (&multilib_obstack
, 0);
6213 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6216 #ifdef INIT_ENVIRONMENT
6217 /* Set up any other necessary machine specific environment variables. */
6218 xputenv (INIT_ENVIRONMENT
);
6221 /* Make a table of what switches there are (switches, n_switches).
6222 Make a table of specified input files (infiles, n_infiles).
6223 Decode switches that are handled locally. */
6225 process_command (decoded_options_count
, decoded_options
);
6227 /* Initialize the vector of specs to just the default.
6228 This means one element containing 0s, as a terminator. */
6230 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
6231 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6232 n_compilers
= n_default_compilers
;
6234 /* Read specs from a file if there is one. */
6236 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6237 spec_version
, dir_separator_str
, NULL
);
6238 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6240 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6241 /* Read the specs file unless it is a default one. */
6242 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6243 read_specs (specs_file
, TRUE
);
6247 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6248 for any override of as, ld and libraries. */
6249 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
6250 + strlen (just_machine_suffix
) + sizeof ("specs"));
6252 strcpy (specs_file
, standard_exec_prefix
);
6253 strcat (specs_file
, just_machine_suffix
);
6254 strcat (specs_file
, "specs");
6255 if (access (specs_file
, R_OK
) == 0)
6256 read_specs (specs_file
, TRUE
);
6258 /* Process any configure-time defaults specified for the command line
6259 options, via OPTION_DEFAULT_SPECS. */
6260 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6261 do_option_spec (option_default_specs
[i
].name
,
6262 option_default_specs
[i
].spec
);
6264 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6265 of the command line. */
6267 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6268 do_self_spec (driver_self_specs
[i
]);
6272 enum save_temps save
;
6274 if (!compare_debug_second
)
6276 n_switches_debug_check
[1] = n_switches
;
6277 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
6278 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
6281 do_self_spec ("%:compare-debug-self-opt()");
6282 n_switches_debug_check
[0] = n_switches
;
6283 n_switches_alloc_debug_check
[0] = n_switches_alloc
;
6284 switches_debug_check
[0] = switches
;
6286 n_switches
= n_switches_debug_check
[1];
6287 n_switches_alloc
= n_switches_alloc_debug_check
[1];
6288 switches
= switches_debug_check
[1];
6291 /* Avoid crash when computing %j in this early. */
6292 save
= save_temps_flag
;
6293 save_temps_flag
= SAVE_TEMPS_NONE
;
6295 compare_debug
= -compare_debug
;
6296 do_self_spec ("%:compare-debug-self-opt()");
6298 save_temps_flag
= save
;
6300 if (!compare_debug_second
)
6302 n_switches_debug_check
[1] = n_switches
;
6303 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
6304 switches_debug_check
[1] = switches
;
6305 compare_debug
= -compare_debug
;
6306 n_switches
= n_switches_debug_check
[0];
6307 n_switches_alloc
= n_switches_debug_check
[0];
6308 switches
= switches_debug_check
[0];
6312 /* If not cross-compiling, look for executables in the standard
6314 if (*cross_compile
== '0')
6316 if (*md_exec_prefix
)
6318 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6319 PREFIX_PRIORITY_LAST
, 0, 0);
6323 /* Process sysroot_suffix_spec. */
6324 if (*sysroot_suffix_spec
!= 0
6325 && do_spec_2 (sysroot_suffix_spec
) == 0)
6327 if (argbuf_index
> 1)
6328 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6329 else if (argbuf_index
== 1)
6330 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6333 #ifdef HAVE_LD_SYSROOT
6334 /* Pass the --sysroot option to the linker, if it supports that. If
6335 there is a sysroot_suffix_spec, it has already been processed by
6336 this point, so target_system_root really is the system root we
6338 if (target_system_root
)
6340 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6341 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6342 set_spec ("link", XOBFINISH (&obstack
, const char *));
6346 /* Process sysroot_hdrs_suffix_spec. */
6347 if (*sysroot_hdrs_suffix_spec
!= 0
6348 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6350 if (argbuf_index
> 1)
6351 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6352 else if (argbuf_index
== 1)
6353 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6356 /* Look for startfiles in the standard places. */
6357 if (*startfile_prefix_spec
!= 0
6358 && do_spec_2 (startfile_prefix_spec
) == 0
6359 && do_spec_1 (" ", 0, NULL
) == 0)
6362 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6363 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6364 PREFIX_PRIORITY_LAST
, 0, 1);
6366 /* We should eventually get rid of all these and stick to
6367 startfile_prefix_spec exclusively. */
6368 else if (*cross_compile
== '0' || target_system_root
)
6370 if (*md_startfile_prefix
)
6371 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6372 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6374 if (*md_startfile_prefix_1
)
6375 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6376 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6378 /* If standard_startfile_prefix is relative, base it on
6379 standard_exec_prefix. This lets us move the installed tree
6380 as a unit. If GCC_EXEC_PREFIX is defined, base
6381 standard_startfile_prefix on that as well.
6383 If the prefix is relative, only search it for native compilers;
6384 otherwise we will search a directory containing host libraries. */
6385 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6386 add_sysrooted_prefix (&startfile_prefixes
,
6387 standard_startfile_prefix
, "BINUTILS",
6388 PREFIX_PRIORITY_LAST
, 0, 1);
6389 else if (*cross_compile
== '0')
6391 add_prefix (&startfile_prefixes
,
6392 concat (gcc_exec_prefix
6393 ? gcc_exec_prefix
: standard_exec_prefix
,
6395 standard_startfile_prefix
, NULL
),
6396 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6399 /* Sysrooted prefixes are relocated because target_system_root is
6400 also relocated by gcc_exec_prefix. */
6401 if (*standard_startfile_prefix_1
)
6402 add_sysrooted_prefix (&startfile_prefixes
,
6403 standard_startfile_prefix_1
, "BINUTILS",
6404 PREFIX_PRIORITY_LAST
, 0, 1);
6405 if (*standard_startfile_prefix_2
)
6406 add_sysrooted_prefix (&startfile_prefixes
,
6407 standard_startfile_prefix_2
, "BINUTILS",
6408 PREFIX_PRIORITY_LAST
, 0, 1);
6411 /* Process any user specified specs in the order given on the command
6413 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6415 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6417 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6420 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6421 if (gcc_exec_prefix
)
6422 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6423 spec_version
, dir_separator_str
, NULL
);
6425 /* Now we have the specs.
6426 Set the `valid' bits for switches that match anything in any spec. */
6428 validate_all_switches ();
6430 /* Now that we have the switches and the specs, set
6431 the subdirectory based on the options. */
6432 set_multilib_dir ();
6434 /* Set up to remember the pathname of gcc and any options
6435 needed for collect. We use argv[0] instead of progname because
6436 we need the complete pathname. */
6437 obstack_init (&collect_obstack
);
6438 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6439 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6440 xputenv (XOBFINISH (&collect_obstack
, char *));
6442 /* Set up to remember the pathname of the lto wrapper. */
6444 lto_wrapper_spec
= find_a_file (&exec_prefixes
, "lto-wrapper", X_OK
, false);
6445 if (lto_wrapper_spec
)
6447 obstack_init (&collect_obstack
);
6448 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
6449 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
6450 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
6451 strlen (lto_wrapper_spec
) + 1);
6452 xputenv (XOBFINISH (&collect_obstack
, char *));
6455 /* Warn about any switches that no pass was interested in. */
6457 for (i
= 0; (int) i
< n_switches
; i
++)
6458 if (! switches
[i
].validated
)
6459 error ("unrecognized option %<-%s%>", switches
[i
].part1
);
6461 /* Obey some of the options. */
6463 if (print_search_dirs
)
6465 printf (_("install: %s%s\n"),
6466 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
6467 gcc_exec_prefix
? "" : machine_suffix
);
6468 printf (_("programs: %s\n"),
6469 build_search_list (&exec_prefixes
, "", false, false));
6470 printf (_("libraries: %s\n"),
6471 build_search_list (&startfile_prefixes
, "", false, true));
6475 if (print_file_name
)
6477 printf ("%s\n", find_file (print_file_name
));
6481 if (print_prog_name
)
6483 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6484 printf ("%s\n", (newname
? newname
: print_prog_name
));
6488 if (print_multi_lib
)
6490 print_multilib_info ();
6494 if (print_multi_directory
)
6496 if (multilib_dir
== NULL
)
6499 printf ("%s\n", multilib_dir
);
6505 if (target_system_root
)
6507 if (target_sysroot_suffix
)
6508 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
6510 printf ("%s\n", target_system_root
);
6515 if (print_multi_os_directory
)
6517 if (multilib_os_dir
== NULL
)
6520 printf ("%s\n", multilib_os_dir
);
6524 if (print_sysroot_headers_suffix
)
6526 if (*sysroot_hdrs_suffix_spec
)
6528 printf("%s\n", (target_sysroot_hdrs_suffix
6529 ? target_sysroot_hdrs_suffix
6534 /* The error status indicates that only one set of fixed
6535 headers should be built. */
6536 fatal_error ("not configured with sysroot headers suffix");
6539 if (print_help_list
)
6545 printf (_("\nFor bug reporting instructions, please see:\n"));
6546 printf ("%s.\n", bug_report_url
);
6551 /* We do not exit here. Instead we have created a fake input file
6552 called 'help-dummy' which needs to be compiled, and we pass this
6553 on the various sub-processes, along with the --help switch.
6554 Ensure their output appears after ours. */
6555 fputc ('\n', stdout
);
6561 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
6563 printf ("Copyright %s 2010 Free Software Foundation, Inc.\n",
6565 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
6566 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
6571 /* We do not exit here. We use the same mechanism of --help to print
6572 the version of the sub-processes. */
6573 fputc ('\n', stdout
);
6582 fnotice (stderr
, "Target: %s\n", spec_machine
);
6583 fnotice (stderr
, "Configured with: %s\n", configuration_arguments
);
6585 #ifdef THREAD_MODEL_SPEC
6586 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6587 but there's no point in doing all this processing just to get
6588 thread_model back. */
6589 obstack_init (&obstack
);
6590 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6591 obstack_1grow (&obstack
, '\0');
6592 thrmod
= XOBFINISH (&obstack
, const char *);
6594 thrmod
= thread_model
;
6597 fnotice (stderr
, "Thread model: %s\n", thrmod
);
6599 /* compiler_version is truncated at the first space when initialized
6600 from version string, so truncate version_string at the first space
6601 before comparing. */
6602 for (n
= 0; version_string
[n
]; n
++)
6603 if (version_string
[n
] == ' ')
6606 if (! strncmp (version_string
, compiler_version
, n
)
6607 && compiler_version
[n
] == 0)
6608 fnotice (stderr
, "gcc version %s %s\n", version_string
,
6611 fnotice (stderr
, "gcc driver version %s %sexecuting gcc version %s\n",
6612 version_string
, pkgversion_string
, compiler_version
);
6618 if (n_infiles
== added_libraries
)
6619 fatal_error ("no input files");
6621 /* Make a place to record the compiler output file names
6622 that correspond to the input files. */
6625 i
+= lang_specific_extra_outfiles
;
6626 outfiles
= XCNEWVEC (const char *, i
);
6628 /* Record which files were specified explicitly as link input. */
6630 explicit_link_files
= XCNEWVEC (char, n_infiles
);
6632 combine_inputs
= have_o
|| flag_wpa
;
6634 for (i
= 0; (int) i
< n_infiles
; i
++)
6636 const char *name
= infiles
[i
].name
;
6637 struct compiler
*compiler
= lookup_compiler (name
,
6639 infiles
[i
].language
);
6641 if (compiler
&& !(compiler
->combinable
))
6642 combine_inputs
= false;
6644 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6645 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6646 infiles
[i
].incompiler
= compiler
;
6650 input_file_compiler
= compiler
;
6651 infiles
[i
].incompiler
= compiler
;
6655 /* Since there is no compiler for this input file, assume it is a
6657 explicit_link_files
[i
] = 1;
6658 infiles
[i
].incompiler
= NULL
;
6660 infiles
[i
].compiled
= false;
6661 infiles
[i
].preprocessed
= false;
6664 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
6665 fatal_error ("cannot specify -o with -c, -S or -E with multiple files");
6667 for (i
= 0; (int) i
< n_infiles
; i
++)
6669 int this_file_error
= 0;
6671 /* Tell do_spec what to substitute for %i. */
6673 input_file_number
= i
;
6674 set_input (infiles
[i
].name
);
6676 if (infiles
[i
].compiled
)
6679 /* Use the same thing in %o, unless cp->spec says otherwise. */
6681 outfiles
[i
] = gcc_input_filename
;
6683 /* Figure out which compiler from the file's suffix. */
6686 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6687 infiles
[i
].language
);
6689 if (input_file_compiler
)
6691 /* Ok, we found an applicable compiler. Run its spec. */
6693 if (input_file_compiler
->spec
[0] == '#')
6695 error ("%s: %s compiler not installed on this system",
6696 gcc_input_filename
, &input_file_compiler
->spec
[1]);
6697 this_file_error
= 1;
6703 if (debug_check_temp_file
[0])
6704 free (debug_check_temp_file
[0]);
6705 debug_check_temp_file
[0] = NULL
;
6707 if (debug_check_temp_file
[1])
6708 free (debug_check_temp_file
[1]);
6709 debug_check_temp_file
[1] = NULL
;
6712 value
= do_spec (input_file_compiler
->spec
);
6713 infiles
[i
].compiled
= true;
6715 this_file_error
= 1;
6716 else if (compare_debug
&& debug_check_temp_file
[0])
6719 inform (0, "recompiling with -fcompare-debug");
6721 compare_debug
= -compare_debug
;
6722 n_switches
= n_switches_debug_check
[1];
6723 n_switches_alloc
= n_switches_alloc_debug_check
[1];
6724 switches
= switches_debug_check
[1];
6726 value
= do_spec (input_file_compiler
->spec
);
6728 compare_debug
= -compare_debug
;
6729 n_switches
= n_switches_debug_check
[0];
6730 n_switches_alloc
= n_switches_alloc_debug_check
[0];
6731 switches
= switches_debug_check
[0];
6735 error ("during -fcompare-debug recompilation");
6736 this_file_error
= 1;
6739 gcc_assert (debug_check_temp_file
[1]
6740 && strcmp (debug_check_temp_file
[0],
6741 debug_check_temp_file
[1]));
6744 inform (0, "comparing final insns dumps");
6746 if (compare_files (debug_check_temp_file
))
6747 this_file_error
= 1;
6752 if (debug_check_temp_file
[0])
6753 free (debug_check_temp_file
[0]);
6754 debug_check_temp_file
[0] = NULL
;
6756 if (debug_check_temp_file
[1])
6757 free (debug_check_temp_file
[1]);
6758 debug_check_temp_file
[1] = NULL
;
6763 /* If this file's name does not contain a recognized suffix,
6764 record it as explicit linker input. */
6767 explicit_link_files
[i
] = 1;
6769 /* Clear the delete-on-failure queue, deleting the files in it
6770 if this compilation failed. */
6772 if (this_file_error
)
6774 delete_failure_queue ();
6777 /* If this compilation succeeded, don't delete those files later. */
6778 clear_failure_queue ();
6781 /* Reset the input file name to the first compile/object file name, for use
6782 with %b in LINK_SPEC. We use the first input file that we can find
6783 a compiler to compile it instead of using infiles.language since for
6784 languages other than C we use aliases that we then lookup later. */
6789 for (i
= 0; i
< n_infiles
; i
++)
6790 if (infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6792 set_input (infiles
[i
].name
);
6799 /* Make sure INPUT_FILE_NUMBER points to first available open
6801 input_file_number
= n_infiles
;
6802 if (lang_specific_pre_link ())
6806 /* Determine if there are any linker input files. */
6807 num_linker_inputs
= 0;
6808 for (i
= 0; (int) i
< n_infiles
; i
++)
6809 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6810 num_linker_inputs
++;
6812 /* Run ld to link all the compiler output files. */
6814 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
6816 int tmp
= execution_count
;
6817 const char *fuse_linker_plugin
= "fuse-linker-plugin";
6819 /* We'll use ld if we can't find collect2. */
6820 if (! strcmp (linker_name_spec
, "collect2"))
6822 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
6824 linker_name_spec
= "ld";
6827 if (switch_matches (fuse_linker_plugin
,
6828 fuse_linker_plugin
+ strlen (fuse_linker_plugin
), 0))
6830 linker_plugin_file_spec
= find_a_file (&exec_prefixes
,
6831 LTOPLUGINSONAME
, R_OK
,
6833 if (!linker_plugin_file_spec
)
6834 fatal_error ("-fuse-linker-plugin, but " LTOPLUGINSONAME
" not found");
6836 lto_libgcc_spec
= find_a_file (&startfile_prefixes
, "libgcc.a",
6838 if (!lto_libgcc_spec
)
6839 fatal_error ("could not find libgcc.a");
6841 lto_gcc_spec
= argv
[0];
6843 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6845 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
6846 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
6848 if (print_subprocess_help
== 1)
6850 printf (_("\nLinker options\n==============\n\n"));
6851 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
6852 " to the linker.\n\n"));
6855 value
= do_spec (link_command_spec
);
6858 linker_was_run
= (tmp
!= execution_count
);
6861 /* If options said don't run linker,
6862 complain about input files to be given to the linker. */
6864 if (! linker_was_run
&& !seen_error ())
6865 for (i
= 0; (int) i
< n_infiles
; i
++)
6866 if (explicit_link_files
[i
]
6867 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
6868 warning (0, "%s: linker input file unused because linking not done",
6871 /* Delete some or all of the temporary files we made. */
6874 delete_failure_queue ();
6875 delete_temp_files ();
6877 if (print_help_list
)
6879 printf (("\nFor bug reporting instructions, please see:\n"));
6880 printf ("%s\n", bug_report_url
);
6883 return (signal_count
!= 0 ? 2
6884 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
6888 /* Find the proper compilation spec for the file name NAME,
6889 whose length is LENGTH. LANGUAGE is the specified language,
6890 or 0 if this file is to be passed to the linker. */
6892 static struct compiler
*
6893 lookup_compiler (const char *name
, size_t length
, const char *language
)
6895 struct compiler
*cp
;
6897 /* If this was specified by the user to be a linker input, indicate that. */
6898 if (language
!= 0 && language
[0] == '*')
6901 /* Otherwise, look for the language, if one is spec'd. */
6904 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6905 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6908 error ("language %s not recognized", language
);
6912 /* Look for a suffix. */
6913 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6915 if (/* The suffix `-' matches only the file name `-'. */
6916 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6917 || (strlen (cp
->suffix
) < length
6918 /* See if the suffix matches the end of NAME. */
6919 && !strcmp (cp
->suffix
,
6920 name
+ length
- strlen (cp
->suffix
))
6925 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6926 /* Look again, but case-insensitively this time. */
6928 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6930 if (/* The suffix `-' matches only the file name `-'. */
6931 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6932 || (strlen (cp
->suffix
) < length
6933 /* See if the suffix matches the end of NAME. */
6934 && ((!strcmp (cp
->suffix
,
6935 name
+ length
- strlen (cp
->suffix
))
6936 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6937 && !strcasecmp (cp
->suffix
,
6938 name
+ length
- strlen (cp
->suffix
)))
6944 if (cp
>= compilers
)
6946 if (cp
->spec
[0] != '@')
6947 /* A non-alias entry: return it. */
6950 /* An alias entry maps a suffix to a language.
6951 Search for the language; pass 0 for NAME and LENGTH
6952 to avoid infinite recursion if language not found. */
6953 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6959 save_string (const char *s
, int len
)
6961 char *result
= XNEWVEC (char, len
+ 1);
6963 memcpy (result
, s
, len
);
6969 pfatal_with_name (const char *name
)
6971 perror_with_name (name
);
6972 delete_temp_files ();
6977 perror_with_name (const char *name
)
6979 error ("%s: %m", name
);
6983 validate_switches_from_spec (const char *spec
)
6985 const char *p
= spec
;
6988 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6989 /* We have a switch spec. */
6990 p
= validate_switches (p
+ 1);
6994 validate_all_switches (void)
6996 struct compiler
*comp
;
6997 struct spec_list
*spec
;
6999 for (comp
= compilers
; comp
->spec
; comp
++)
7000 validate_switches_from_spec (comp
->spec
);
7002 /* Look through the linked list of specs read from the specs file. */
7003 for (spec
= specs
; spec
; spec
= spec
->next
)
7004 validate_switches_from_spec (*spec
->ptr_spec
);
7006 validate_switches_from_spec (link_command_spec
);
7009 /* Look at the switch-name that comes after START
7010 and mark as valid all supplied switches that match it. */
7013 validate_switches (const char *start
)
7015 const char *p
= start
;
7019 bool suffix
= false;
7020 bool starred
= false;
7022 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7031 if (*p
== '.' || *p
== ',')
7035 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7036 || *p
== ',' || *p
== '.' || *p
== '@')
7041 starred
= true, p
++;
7047 /* Mark all matching switches as valid. */
7048 for (i
= 0; i
< n_switches
; i
++)
7049 if (!strncmp (switches
[i
].part1
, atom
, len
)
7050 && (starred
|| switches
[i
].part1
[len
] == 0))
7051 switches
[i
].validated
= 1;
7055 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
7058 if (*p
&& p
[-1] == ':')
7060 while (*p
&& *p
!= ';' && *p
!= '}')
7065 if (*p
== '{' || *p
== '<')
7066 p
= validate_switches (p
+1);
7067 else if (p
[0] == 'W' && p
[1] == '{')
7068 p
= validate_switches (p
+2);
7075 if (*p
&& p
[-1] == ';')
7089 static struct mdswitchstr
*mdswitches
;
7090 static int n_mdswitches
;
7092 /* Check whether a particular argument was used. The first time we
7093 canonicalize the switches to keep only the ones we care about. */
7096 used_arg (const char *p
, int len
)
7101 const char *replace
;
7106 static struct mswitchstr
*mswitches
;
7107 static int n_mswitches
;
7112 struct mswitchstr
*matches
;
7116 /* Break multilib_matches into the component strings of string
7117 and replacement string. */
7118 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7123 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
7125 q
= multilib_matches
;
7134 fatal_error ("multilib spec %qs is invalid",
7139 matches
[i
].len
= q
- matches
[i
].str
;
7141 matches
[i
].replace
= ++q
;
7142 while (*q
!= ';' && *q
!= '\0')
7145 goto invalid_matches
;
7148 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7154 /* Now build a list of the replacement string for switches that we care
7155 about. Make sure we allocate at least one entry. This prevents
7156 xmalloc from calling fatal, and prevents us from re-executing this
7159 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7160 for (i
= 0; i
< n_switches
; i
++)
7161 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
7163 int xlen
= strlen (switches
[i
].part1
);
7164 for (j
= 0; j
< cnt
; j
++)
7165 if (xlen
== matches
[j
].len
7166 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7168 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7169 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7170 mswitches
[n_mswitches
].replace
= (char *) 0;
7171 mswitches
[n_mswitches
].rep_len
= 0;
7177 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7178 on the command line nor any options mutually incompatible with
7180 for (i
= 0; i
< n_mdswitches
; i
++)
7184 for (q
= multilib_options
; *q
!= '\0'; q
++)
7190 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7191 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7193 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7200 if (*q
!= ' ' && *q
!= '\0')
7202 while (*r
!= ' ' && *r
!= '\0')
7205 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7208 if (used_arg (r
, q
- r
))
7213 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7214 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7215 mswitches
[n_mswitches
].replace
= (char *) 0;
7216 mswitches
[n_mswitches
].rep_len
= 0;
7229 for (i
= 0; i
< n_mswitches
; i
++)
7230 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7237 default_arg (const char *p
, int len
)
7241 for (i
= 0; i
< n_mdswitches
; i
++)
7242 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7248 /* Work out the subdirectory to use based on the options. The format of
7249 multilib_select is a list of elements. Each element is a subdirectory
7250 name followed by a list of options followed by a semicolon. The format
7251 of multilib_exclusions is the same, but without the preceding
7252 directory. First gcc will check the exclusions, if none of the options
7253 beginning with an exclamation point are present, and all of the other
7254 options are present, then we will ignore this completely. Passing
7255 that, gcc will consider each multilib_select in turn using the same
7256 rules for matching the options. If a match is found, that subdirectory
7260 set_multilib_dir (void)
7263 unsigned int this_path_len
;
7264 const char *this_path
, *this_arg
;
7265 const char *start
, *end
;
7267 int ok
, ndfltok
, first
;
7270 start
= multilib_defaults
;
7271 while (*start
== ' ' || *start
== '\t')
7273 while (*start
!= '\0')
7276 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7278 while (*start
== ' ' || *start
== '\t')
7286 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
7287 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7289 while (*start
== ' ' || *start
== '\t')
7295 for (end
= start
+ 1;
7296 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7299 obstack_grow (&multilib_obstack
, start
, end
- start
);
7300 obstack_1grow (&multilib_obstack
, 0);
7301 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
7302 mdswitches
[i
++].len
= end
- start
;
7309 p
= multilib_exclusions
;
7312 /* Ignore newlines. */
7319 /* Check the arguments. */
7326 fatal_error ("multilib exclusions %qs is invalid",
7327 multilib_exclusions
);
7337 while (*p
!= ' ' && *p
!= ';')
7340 goto invalid_exclusions
;
7344 if (*this_arg
!= '!')
7352 ok
= used_arg (this_arg
, p
- this_arg
);
7367 p
= multilib_select
;
7370 /* Ignore newlines. */
7377 /* Get the initial path. */
7384 fatal_error ("multilib select %qs is invalid",
7389 this_path_len
= p
- this_path
;
7391 /* Check the arguments. */
7398 goto invalid_select
;
7407 while (*p
!= ' ' && *p
!= ';')
7410 goto invalid_select
;
7414 if (*this_arg
!= '!')
7422 /* If this is a default argument, we can just ignore it.
7423 This is true even if this_arg begins with '!'. Beginning
7424 with '!' does not mean that this argument is necessarily
7425 inappropriate for this library: it merely means that
7426 there is a more specific library which uses this
7427 argument. If this argument is a default, we need not
7428 consider that more specific library. */
7429 ok
= used_arg (this_arg
, p
- this_arg
);
7436 if (default_arg (this_arg
, p
- this_arg
))
7445 if (this_path_len
!= 1
7446 || this_path
[0] != '.')
7448 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
7451 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7452 new_multilib_dir
[this_path_len
] = '\0';
7453 q
= strchr (new_multilib_dir
, ':');
7456 multilib_dir
= new_multilib_dir
;
7463 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7465 while (q
< end
&& *q
!= ':')
7469 char *new_multilib_os_dir
= XNEWVEC (char, end
- q
);
7470 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7471 new_multilib_os_dir
[end
- q
- 1] = '\0';
7472 multilib_os_dir
= new_multilib_os_dir
;
7480 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7481 && strcmp (multilib_os_dir
, ".") == 0)
7483 free (CONST_CAST (char *, multilib_os_dir
));
7484 multilib_os_dir
= NULL
;
7486 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7487 multilib_os_dir
= multilib_dir
;
7490 /* Print out the multiple library subdirectory selection
7491 information. This prints out a series of lines. Each line looks
7492 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7493 required. Only the desired options are printed out, the negative
7494 matches. The options are print without a leading dash. There are
7495 no spaces to make it easy to use the information in the shell.
7496 Each subdirectory is printed only once. This assumes the ordering
7497 generated by the genmultilib script. Also, we leave out ones that match
7501 print_multilib_info (void)
7503 const char *p
= multilib_select
;
7504 const char *last_path
= 0, *this_path
;
7506 unsigned int last_path_len
= 0;
7511 /* Ignore newlines. */
7518 /* Get the initial path. */
7525 fatal_error ("multilib select %qs is invalid", multilib_select
);
7531 /* When --disable-multilib was used but target defines
7532 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7533 to find multilib_os_dir, so skip them from output. */
7534 if (this_path
[0] == '.' && this_path
[1] == ':')
7537 /* Check for matches with the multilib_exclusions. We don't bother
7538 with the '!' in either list. If any of the exclusion rules match
7539 all of its options with the select rule, we skip it. */
7541 const char *e
= multilib_exclusions
;
7542 const char *this_arg
;
7547 /* Ignore newlines. */
7554 /* Check the arguments. */
7563 fatal_error ("multilib exclusion %qs is invalid",
7564 multilib_exclusions
);
7575 while (*e
!= ' ' && *e
!= ';')
7578 goto invalid_exclusion
;
7586 int len
= e
- this_arg
;
7589 goto invalid_select
;
7593 while (*q
!= ' ' && *q
!= ';')
7596 goto invalid_select
;
7600 if (! strncmp (arg
, this_arg
,
7601 (len
< q
- arg
) ? q
- arg
: len
)
7602 || default_arg (this_arg
, e
- this_arg
))
7632 /* If this is a duplicate, skip it. */
7633 skip
= (last_path
!= 0
7634 && (unsigned int) (p
- this_path
) == last_path_len
7635 && ! strncmp (last_path
, this_path
, last_path_len
));
7637 last_path
= this_path
;
7638 last_path_len
= p
- this_path
;
7641 /* If this directory requires any default arguments, we can skip
7642 it. We will already have printed a directory identical to
7643 this one which does not require that default argument. */
7654 goto invalid_select
;
7661 while (*q
!= ' ' && *q
!= ';')
7664 goto invalid_select
;
7669 && default_arg (arg
, q
- arg
))
7684 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7695 goto invalid_select
;
7703 use_arg
= *p
!= '!';
7708 while (*p
!= ' ' && *p
!= ';')
7711 goto invalid_select
;
7723 /* If there are extra options, print them now. */
7724 if (multilib_extra
&& *multilib_extra
)
7726 int print_at
= TRUE
;
7729 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7750 /* getenv built-in spec function.
7752 Returns the value of the environment variable given by its first
7753 argument, concatenated with the second argument. If the
7754 environment variable is not defined, a fatal error is issued. */
7757 getenv_spec_function (int argc
, const char **argv
)
7767 value
= getenv (argv
[0]);
7769 fatal_error ("environment variable %qs not defined", argv
[0]);
7771 /* We have to escape every character of the environment variable so
7772 they are not interpreted as active spec characters. A
7773 particularly painful case is when we are reading a variable
7774 holding a windows path complete with \ separators. */
7775 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
7776 result
= XNEWVAR (char, len
);
7777 for (ptr
= result
; *value
; ptr
+= 2)
7783 strcpy (ptr
, argv
[1]);
7788 /* if-exists built-in spec function.
7790 Checks to see if the file specified by the absolute pathname in
7791 ARGS exists. Returns that pathname if found.
7793 The usual use for this function is to check for a library file
7794 (whose name has been expanded with %s). */
7797 if_exists_spec_function (int argc
, const char **argv
)
7799 /* Must have only one argument. */
7800 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7806 /* if-exists-else built-in spec function.
7808 This is like if-exists, but takes an additional argument which
7809 is returned if the first argument does not exist. */
7812 if_exists_else_spec_function (int argc
, const char **argv
)
7814 /* Must have exactly two arguments. */
7818 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7824 /* replace-outfile built-in spec function.
7826 This looks for the first argument in the outfiles array's name and
7827 replaces it with the second argument. */
7830 replace_outfile_spec_function (int argc
, const char **argv
)
7833 /* Must have exactly two arguments. */
7837 for (i
= 0; i
< n_infiles
; i
++)
7839 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7840 outfiles
[i
] = xstrdup (argv
[1]);
7845 /* remove-outfile built-in spec function.
7847 * This looks for the first argument in the outfiles array's name and
7851 remove_outfile_spec_function (int argc
, const char **argv
)
7854 /* Must have exactly one argument. */
7858 for (i
= 0; i
< n_infiles
; i
++)
7860 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7866 /* Given two version numbers, compares the two numbers.
7867 A version number must match the regular expression
7868 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
7871 compare_version_strings (const char *v1
, const char *v2
)
7876 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
7877 REG_EXTENDED
| REG_NOSUB
) != 0)
7879 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
7880 if (rresult
== REG_NOMATCH
)
7881 fatal_error ("invalid version number %qs", v1
);
7882 else if (rresult
!= 0)
7884 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
7885 if (rresult
== REG_NOMATCH
)
7886 fatal_error ("invalid version number %qs", v2
);
7887 else if (rresult
!= 0)
7890 return strverscmp (v1
, v2
);
7894 /* version_compare built-in spec function.
7896 This takes an argument of the following form:
7898 <comparison-op> <arg1> [<arg2>] <switch> <result>
7900 and produces "result" if the comparison evaluates to true,
7901 and nothing if it doesn't.
7903 The supported <comparison-op> values are:
7905 >= true if switch is a later (or same) version than arg1
7907 < true if switch is an earlier version than arg1
7909 >< true if switch is arg1 or later, and earlier than arg2
7910 <> true if switch is earlier than arg1 or is arg2 or later
7912 If the switch is not present, the condition is false unless
7913 the first character of the <comparison-op> is '!'.
7916 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
7917 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
7920 version_compare_spec_function (int argc
, const char **argv
)
7924 const char *switch_value
= NULL
;
7929 fatal_error ("too few arguments to %%:version-compare");
7930 if (argv
[0][0] == '\0')
7932 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
7934 if (argc
!= nargs
+ 3)
7935 fatal_error ("too many arguments to %%:version-compare");
7937 switch_len
= strlen (argv
[nargs
+ 1]);
7938 for (i
= 0; i
< n_switches
; i
++)
7939 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
7940 && check_live_switch (i
, switch_len
))
7941 switch_value
= switches
[i
].part1
+ switch_len
;
7943 if (switch_value
== NULL
)
7947 comp1
= compare_version_strings (switch_value
, argv
[1]);
7949 comp2
= compare_version_strings (switch_value
, argv
[2]);
7951 comp2
= -1; /* This value unused. */
7954 switch (argv
[0][0] << 8 | argv
[0][1])
7956 case '>' << 8 | '=':
7957 result
= comp1
>= 0;
7959 case '!' << 8 | '<':
7960 result
= comp1
>= 0 || switch_value
== NULL
;
7965 case '!' << 8 | '>':
7966 result
= comp1
< 0 || switch_value
== NULL
;
7968 case '>' << 8 | '<':
7969 result
= comp1
>= 0 && comp2
< 0;
7971 case '<' << 8 | '>':
7972 result
= comp1
< 0 || comp2
>= 0;
7976 fatal_error ("unknown operator %qs in %%:version-compare", argv
[0]);
7981 return argv
[nargs
+ 2];
7984 /* %:include builtin spec function. This differs from %include in that it
7985 can be nested inside a spec, and thus be conditionalized. It takes
7986 one argument, the filename, and looks for it in the startfile path.
7987 The result is always NULL, i.e. an empty expansion. */
7990 include_spec_function (int argc
, const char **argv
)
7997 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
7998 read_specs (file
? file
: argv
[0], FALSE
);
8003 /* %:find-file spec function. This function replaces its argument by
8004 the file found thru find_file, that is the -print-file-name gcc
8007 find_file_spec_function (int argc
, const char **argv
)
8014 file
= find_file (argv
[0]);
8019 /* %:find-plugindir spec function. This function replaces its argument
8020 by the -iplugindir=<dir> option. `dir' is found thru find_file, that
8021 is the -print-file-name gcc program option. */
8023 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
8030 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
8035 /* %:print-asm-header spec function. Print a banner to say that the
8036 following output is from the assembler. */
8039 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
8040 const char **argv ATTRIBUTE_UNUSED
)
8042 printf (_("Assembler options\n=================\n\n"));
8043 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
8048 /* Compute a timestamp to initialize flag_random_seed. */
8051 get_local_tick (void)
8055 /* Get some more or less random data. */
8056 #ifdef HAVE_GETTIMEOFDAY
8060 gettimeofday (&tv
, NULL
);
8061 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
8065 time_t now
= time (NULL
);
8067 if (now
!= (time_t)-1)
8068 ret
= (unsigned) now
;
8075 /* %:compare-debug-dump-opt spec function. Save the last argument,
8076 expected to be the last -fdump-final-insns option, or generate a
8080 compare_debug_dump_opt_spec_function (int arg
,
8081 const char **argv ATTRIBUTE_UNUSED
)
8086 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
8089 fatal_error ("too many arguments to %%:compare-debug-dump-opt");
8091 do_spec_2 ("%{fdump-final-insns=*:%*}");
8092 do_spec_1 (" ", 0, NULL
);
8094 if (argbuf_index
> 0 && strcmp (argv
[argbuf_index
- 1], "."))
8099 name
= xstrdup (argv
[argbuf_index
- 1]);
8104 const char *ext
= NULL
;
8106 if (argbuf_index
> 0)
8108 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
8111 else if (!compare_debug
)
8114 do_spec_2 ("%g.gkd");
8116 do_spec_1 (" ", 0, NULL
);
8118 gcc_assert (argbuf_index
> 0);
8120 name
= concat (argbuf
[argbuf_index
- 1], ext
, NULL
);
8122 ret
= concat ("-fdump-final-insns=", name
, NULL
);
8125 which
= compare_debug
< 0;
8126 debug_check_temp_file
[which
] = name
;
8130 unsigned HOST_WIDE_INT value
= get_local_tick () ^ getpid ();
8132 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
8136 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
8145 static const char *debug_auxbase_opt
;
8147 /* %:compare-debug-self-opt spec function. Expands to the options
8148 that are to be passed in the second compilation of
8152 compare_debug_self_opt_spec_function (int arg
,
8153 const char **argv ATTRIBUTE_UNUSED
)
8156 fatal_error ("too many arguments to %%:compare-debug-self-opt");
8158 if (compare_debug
>= 0)
8161 do_spec_2 ("%{c|S:%{o*:%*}}");
8162 do_spec_1 (" ", 0, NULL
);
8164 if (argbuf_index
> 0)
8165 debug_auxbase_opt
= concat ("-auxbase-strip ",
8166 argbuf
[argbuf_index
- 1],
8169 debug_auxbase_opt
= NULL
;
8172 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
8173 %<fdump-final-insns=* -w -S -o %j \
8174 %{!fcompare-debug-second:-fcompare-debug-second} \
8175 ", compare_debug_opt
, NULL
);
8178 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
8179 options that are to be passed in the second compilation of
8180 compare-debug. It expects, as an argument, the basename of the
8181 current input file name, with the .gk suffix appended to it. */
8184 compare_debug_auxbase_opt_spec_function (int arg
,
8191 fatal_error ("too few arguments to %%:compare-debug-auxbase-opt");
8194 fatal_error ("too many arguments to %%:compare-debug-auxbase-opt");
8196 if (compare_debug
>= 0)
8199 len
= strlen (argv
[0]);
8200 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
8201 fatal_error ("argument to %%:compare-debug-auxbase-opt "
8202 "does not end in .gk");
8204 if (debug_auxbase_opt
)
8205 return debug_auxbase_opt
;
8207 #define OPT "-auxbase "
8210 name
= (char*) xmalloc (sizeof (OPT
) + len
);
8211 memcpy (name
, OPT
, sizeof (OPT
) - 1);
8212 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
8213 name
[sizeof (OPT
) - 1 + len
] = '\0';