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*} %{x} %{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 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
863 /* This defines which switches stop a full compilation. */
864 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
865 ((CHAR) == 'c' || (CHAR) == 'S' || (CHAR) == 'E')
867 #ifndef SWITCH_CURTAILS_COMPILATION
868 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
869 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
873 /* Record the mapping from file suffixes for compilation specs. */
877 const char *suffix
; /* Use this compiler for input files
878 whose names end in this suffix. */
880 const char *spec
; /* To use this compiler, run this spec. */
882 const char *cpp_spec
; /* If non-NULL, substitute this spec
883 for `%C', rather than the usual
885 const int combinable
; /* If nonzero, compiler can deal with
886 multiple source files at once (IMA). */
887 const int needs_preprocessing
; /* If nonzero, source files need to
888 be run through a preprocessor. */
891 /* Pointer to a vector of `struct compiler' that gives the spec for
892 compiling a file, based on its suffix.
893 A file that does not end in any of these suffixes will be passed
894 unchanged to the loader and nothing else will be done to it.
896 An entry containing two 0s is used to terminate the vector.
898 If multiple entries match a file, the last matching one is used. */
900 static struct compiler
*compilers
;
902 /* Number of entries in `compilers', not counting the null terminator. */
904 static int n_compilers
;
906 /* The default list of file name suffixes and their compilation specs. */
908 static const struct compiler default_compilers
[] =
910 /* Add lists of suffixes of known languages here. If those languages
911 were not present when we built the driver, we will hit these copies
912 and be given a more meaningful error than "file not used since
913 linking is not done". */
914 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
915 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
916 {".mii", "#Objective-C++", 0, 0, 0},
917 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
918 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
919 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
920 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
921 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
922 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
923 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
924 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
925 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
926 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
927 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
928 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
929 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
930 {".r", "#Ratfor", 0, 0, 0},
931 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
932 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
933 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
934 /* Next come the entries for C. */
935 {".c", "@c", 0, 0, 1},
937 /* cc1 has an integrated ISO C preprocessor. We should invoke the
938 external preprocessor if -save-temps is given. */
939 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
941 %{traditional|ftraditional:\
942 %eGNU C no longer supports -traditional without -E}\
943 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
944 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
945 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
947 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
948 cc1 %(cpp_unique_options) %(cc1_options)}}}\
949 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
951 "%{!E:%e-E or -x required when input is from standard input}\
952 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
953 {".h", "@c-header", 0, 0, 0},
955 /* cc1 has an integrated ISO C preprocessor. We should invoke the
956 external preprocessor if -save-temps is given. */
957 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
959 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
960 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
961 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
963 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
964 %W{o*:--output-pch=%*}}%V}\
965 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
966 cc1 %(cpp_unique_options) %(cc1_options)\
967 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
968 %W{o*:--output-pch=%*}}%V}}}}}}", 0, 0, 0},
969 {".i", "@cpp-output", 0, 0, 0},
971 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
972 {".s", "@assembler", 0, 1, 0},
974 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
975 {".sx", "@assembler-with-cpp", 0, 1, 0},
976 {".S", "@assembler-with-cpp", 0, 1, 0},
977 {"@assembler-with-cpp",
978 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
979 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
980 %{E|M|MM:%(cpp_debug_options)}\
981 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
982 as %(asm_debug) %(asm_options) %|.s %A }}}}"
984 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
985 %{E|M|MM:%(cpp_debug_options)}\
986 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
987 as %(asm_debug) %(asm_options) %m.s %A }}}}"
992 /* Mark end of table. */
996 /* Number of elements in default_compilers, not counting the terminator. */
998 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1000 /* A vector of options to give to the linker.
1001 These options are accumulated by %x,
1002 and substituted into the linker command with %X. */
1003 static int n_linker_options
;
1004 static char **linker_options
;
1006 /* A vector of options to give to the assembler.
1007 These options are accumulated by -Wa,
1008 and substituted into the assembler command with %Y. */
1009 static int n_assembler_options
;
1010 static char **assembler_options
;
1012 /* A vector of options to give to the preprocessor.
1013 These options are accumulated by -Wp,
1014 and substituted into the preprocessor command with %Z. */
1015 static int n_preprocessor_options
;
1016 static char **preprocessor_options
;
1019 skip_whitespace (char *p
)
1023 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1024 be considered whitespace. */
1025 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1027 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1041 /* Structures to keep track of prefixes to try when looking for files. */
1045 const char *prefix
; /* String to prepend to the path. */
1046 struct prefix_list
*next
; /* Next in linked list. */
1047 int require_machine_suffix
; /* Don't use without machine_suffix. */
1048 /* 2 means try both machine_suffix and just_machine_suffix. */
1049 int priority
; /* Sort key - priority within list. */
1050 int os_multilib
; /* 1 if OS multilib scheme should be used,
1051 0 for GCC multilib scheme. */
1056 struct prefix_list
*plist
; /* List of prefixes to try */
1057 int max_len
; /* Max length of a prefix in PLIST */
1058 const char *name
; /* Name of this list (used in config stuff) */
1061 /* List of prefixes to try when looking for executables. */
1063 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1065 /* List of prefixes to try when looking for startup (crt0) files. */
1067 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1069 /* List of prefixes to try when looking for include files. */
1071 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1073 /* Suffix to attach to directories searched for commands.
1074 This looks like `MACHINE/VERSION/'. */
1076 static const char *machine_suffix
= 0;
1078 /* Suffix to attach to directories searched for commands.
1079 This is just `MACHINE/'. */
1081 static const char *just_machine_suffix
= 0;
1083 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1085 static const char *gcc_exec_prefix
;
1087 /* Adjusted value of standard_libexec_prefix. */
1089 static const char *gcc_libexec_prefix
;
1091 /* Default prefixes to attach to command names. */
1093 #ifndef STANDARD_STARTFILE_PREFIX_1
1094 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1096 #ifndef STANDARD_STARTFILE_PREFIX_2
1097 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1100 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1101 #undef MD_EXEC_PREFIX
1102 #undef MD_STARTFILE_PREFIX
1103 #undef MD_STARTFILE_PREFIX_1
1106 /* If no prefixes defined, use the null string, which will disable them. */
1107 #ifndef MD_EXEC_PREFIX
1108 #define MD_EXEC_PREFIX ""
1110 #ifndef MD_STARTFILE_PREFIX
1111 #define MD_STARTFILE_PREFIX ""
1113 #ifndef MD_STARTFILE_PREFIX_1
1114 #define MD_STARTFILE_PREFIX_1 ""
1117 /* These directories are locations set at configure-time based on the
1118 --prefix option provided to configure. Their initializers are
1119 defined in Makefile.in. These paths are not *directly* used when
1120 gcc_exec_prefix is set because, in that case, we know where the
1121 compiler has been installed, and use paths relative to that
1122 location instead. */
1123 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1124 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1125 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1126 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1128 /* For native compilers, these are well-known paths containing
1129 components that may be provided by the system. For cross
1130 compilers, these paths are not used. */
1131 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1132 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1133 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1134 static const char *const standard_startfile_prefix_1
1135 = STANDARD_STARTFILE_PREFIX_1
;
1136 static const char *const standard_startfile_prefix_2
1137 = STANDARD_STARTFILE_PREFIX_2
;
1139 /* A relative path to be used in finding the location of tools
1140 relative to the driver. */
1141 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1143 /* Subdirectory to use for locating libraries. Set by
1144 set_multilib_dir based on the compilation options. */
1146 static const char *multilib_dir
;
1148 /* Subdirectory to use for locating libraries in OS conventions. Set by
1149 set_multilib_dir based on the compilation options. */
1151 static const char *multilib_os_dir
;
1153 /* Structure to keep track of the specs that have been defined so far.
1154 These are accessed using %(specname) or %[specname] in a compiler
1159 /* The following 2 fields must be first */
1160 /* to allow EXTRA_SPECS to be initialized */
1161 const char *name
; /* name of the spec. */
1162 const char *ptr
; /* available ptr if no static pointer */
1164 /* The following fields are not initialized */
1165 /* by EXTRA_SPECS */
1166 const char **ptr_spec
; /* pointer to the spec itself. */
1167 struct spec_list
*next
; /* Next spec in linked list. */
1168 int name_len
; /* length of the name */
1169 int alloc_p
; /* whether string was allocated */
1172 #define INIT_STATIC_SPEC(NAME,PTR) \
1173 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1175 /* List of statically defined specs. */
1176 static struct spec_list static_specs
[] =
1178 INIT_STATIC_SPEC ("asm", &asm_spec
),
1179 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1180 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1181 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1182 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1183 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1184 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1185 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1186 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1187 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1188 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1189 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1190 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1191 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1192 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1193 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1194 INIT_STATIC_SPEC ("link", &link_spec
),
1195 INIT_STATIC_SPEC ("lib", &lib_spec
),
1196 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1197 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1198 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1199 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1200 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1201 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1202 INIT_STATIC_SPEC ("version", &compiler_version
),
1203 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1204 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1205 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1206 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1207 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1208 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1209 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1210 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1211 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1212 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1213 INIT_STATIC_SPEC ("lto_libgcc", <o_libgcc_spec
),
1214 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1215 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1216 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1217 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1218 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1219 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1220 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1221 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1224 #ifdef EXTRA_SPECS /* additional specs needed */
1225 /* Structure to keep track of just the first two args of a spec_list.
1226 That is all that the EXTRA_SPECS macro gives us. */
1229 const char *const name
;
1230 const char *const ptr
;
1233 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1234 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1237 /* List of dynamically allocates specs that have been defined so far. */
1239 static struct spec_list
*specs
= (struct spec_list
*) 0;
1241 /* List of static spec functions. */
1243 static const struct spec_function static_spec_functions
[] =
1245 { "getenv", getenv_spec_function
},
1246 { "if-exists", if_exists_spec_function
},
1247 { "if-exists-else", if_exists_else_spec_function
},
1248 { "replace-outfile", replace_outfile_spec_function
},
1249 { "remove-outfile", remove_outfile_spec_function
},
1250 { "version-compare", version_compare_spec_function
},
1251 { "include", include_spec_function
},
1252 { "find-file", find_file_spec_function
},
1253 { "find-plugindir", find_plugindir_spec_function
},
1254 { "print-asm-header", print_asm_header_spec_function
},
1255 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1256 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1257 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1258 #ifdef EXTRA_SPEC_FUNCTIONS
1259 EXTRA_SPEC_FUNCTIONS
1264 static int processing_spec_function
;
1266 /* Add appropriate libgcc specs to OBSTACK, taking into account
1267 various permutations of -shared-libgcc, -shared, and such. */
1269 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1271 #ifndef USE_LD_AS_NEEDED
1272 #define USE_LD_AS_NEEDED 0
1276 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1277 const char *static_name
, const char *eh_name
)
1281 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1282 "%{!static:%{!static-libgcc:"
1283 #if USE_LD_AS_NEEDED
1284 "%{!shared-libgcc:",
1285 static_name
, " --as-needed ", shared_name
, " --no-as-needed"
1288 shared_name
, "%{!shared: ", static_name
, "}"
1292 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1293 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1297 "%{shared-libgcc:", shared_name
, "}"
1298 "%{!shared-libgcc:", static_name
, "}"
1301 "%{shared:", shared_name
, "}"
1306 obstack_grow (obstack
, buf
, strlen (buf
));
1309 #endif /* ENABLE_SHARED_LIBGCC */
1311 /* Initialize the specs lookup routines. */
1316 struct spec_list
*next
= (struct spec_list
*) 0;
1317 struct spec_list
*sl
= (struct spec_list
*) 0;
1321 return; /* Already initialized. */
1324 fnotice (stderr
, "Using built-in specs.\n");
1327 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1329 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1331 sl
= &extra_specs
[i
];
1332 sl
->name
= extra_specs_1
[i
].name
;
1333 sl
->ptr
= extra_specs_1
[i
].ptr
;
1335 sl
->name_len
= strlen (sl
->name
);
1336 sl
->ptr_spec
= &sl
->ptr
;
1341 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1343 sl
= &static_specs
[i
];
1348 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1349 /* ??? If neither -shared-libgcc nor --static-libgcc was
1350 seen, then we should be making an educated guess. Some proposed
1351 heuristics for ELF include:
1353 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1354 program will be doing dynamic loading, which will likely
1355 need the shared libgcc.
1357 (2) If "-ldl", then it's also a fair bet that we're doing
1360 (3) For each ET_DYN we're linking against (either through -lfoo
1361 or /some/path/foo.so), check to see whether it or one of
1362 its dependencies depends on a shared libgcc.
1366 If the runtime is fixed to look for program headers instead
1367 of calling __register_frame_info at all, for each object,
1368 use the shared libgcc if any EH symbol referenced.
1370 If crtstuff is fixed to not invoke __register_frame_info
1371 automatically, for each object, use the shared libgcc if
1372 any non-empty unwind section found.
1374 Doing any of this probably requires invoking an external program to
1375 do the actual object file scanning. */
1377 const char *p
= libgcc_spec
;
1380 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1381 when given the proper command line arguments. */
1384 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1386 init_gcc_specs (&obstack
,
1388 #ifdef USE_LIBUNWIND_EXCEPTIONS
1394 #ifdef USE_LIBUNWIND_EXCEPTIONS
1395 # ifdef HAVE_LD_STATIC_DYNAMIC
1396 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1406 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1408 /* Ug. We don't know shared library extensions. Hope that
1409 systems that use this form don't do shared libraries. */
1410 init_gcc_specs (&obstack
,
1414 #ifdef USE_LIBUNWIND_EXCEPTIONS
1423 obstack_1grow (&obstack
, *p
);
1424 in_sep
= (*p
== ' ');
1429 obstack_1grow (&obstack
, '\0');
1430 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1433 #ifdef USE_AS_TRADITIONAL_FORMAT
1434 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1436 static const char tf
[] = "--traditional-format ";
1437 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1438 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1439 asm_spec
= XOBFINISH (&obstack
, const char *);
1443 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC
1444 # ifdef LINK_BUILDID_SPEC
1445 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1446 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof(LINK_BUILDID_SPEC
) - 1);
1448 # ifdef LINK_EH_SPEC
1449 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1450 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1452 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1453 link_spec
= XOBFINISH (&obstack
, const char *);
1459 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1460 removed; If the spec starts with a + then SPEC is added to the end of the
1464 set_spec (const char *name
, const char *spec
)
1466 struct spec_list
*sl
;
1467 const char *old_spec
;
1468 int name_len
= strlen (name
);
1471 /* If this is the first call, initialize the statically allocated specs. */
1474 struct spec_list
*next
= (struct spec_list
*) 0;
1475 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1477 sl
= &static_specs
[i
];
1484 /* See if the spec already exists. */
1485 for (sl
= specs
; sl
; sl
= sl
->next
)
1486 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1491 /* Not found - make it. */
1492 sl
= XNEW (struct spec_list
);
1493 sl
->name
= xstrdup (name
);
1494 sl
->name_len
= name_len
;
1495 sl
->ptr_spec
= &sl
->ptr
;
1497 *(sl
->ptr_spec
) = "";
1502 old_spec
= *(sl
->ptr_spec
);
1503 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1504 ? concat (old_spec
, spec
+ 1, NULL
)
1509 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1512 /* Free the old spec. */
1513 if (old_spec
&& sl
->alloc_p
)
1514 free (CONST_CAST(char *, old_spec
));
1519 /* Accumulate a command (program name and args), and run it. */
1521 /* Vector of pointers to arguments in the current line of specifications. */
1523 static const char **argbuf
;
1525 /* Number of elements allocated in argbuf. */
1527 static int argbuf_length
;
1529 /* Number of elements in argbuf currently in use (containing args). */
1531 static int argbuf_index
;
1533 /* Position in the argbuf array containing the name of the output file
1534 (the value associated with the "-o" flag). */
1536 static int have_o_argbuf_index
= 0;
1538 /* Were the options -c, -S or -E passed. */
1539 static int have_c
= 0;
1541 /* Was the option -o passed. */
1542 static int have_o
= 0;
1544 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1545 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1548 static struct temp_name
{
1549 const char *suffix
; /* suffix associated with the code. */
1550 int length
; /* strlen (suffix). */
1551 int unique
; /* Indicates whether %g or %u/%U was used. */
1552 const char *filename
; /* associated filename. */
1553 int filename_length
; /* strlen (filename). */
1554 struct temp_name
*next
;
1557 /* Number of commands executed so far. */
1559 static int execution_count
;
1561 /* Number of commands that exited with a signal. */
1563 static int signal_count
;
1565 /* Allocate the argument vector. */
1571 argbuf
= XNEWVEC (const char *, argbuf_length
);
1574 /* Clear out the vector of arguments (after a command is executed). */
1582 /* Add one argument to the vector at the end.
1583 This is done when a space is seen or at the end of the line.
1584 If DELETE_ALWAYS is nonzero, the arg is a filename
1585 and the file should be deleted eventually.
1586 If DELETE_FAILURE is nonzero, the arg is a filename
1587 and the file should be deleted if this compilation fails. */
1590 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1592 if (argbuf_index
+ 1 == argbuf_length
)
1593 argbuf
= XRESIZEVEC (const char *, argbuf
, (argbuf_length
*= 2));
1595 argbuf
[argbuf_index
++] = arg
;
1596 argbuf
[argbuf_index
] = 0;
1598 if (strcmp (arg
, "-o") == 0)
1599 have_o_argbuf_index
= argbuf_index
;
1600 if (delete_always
|| delete_failure
)
1603 /* If the temporary file we should delete is specified as
1604 part of a joined argument extract the filename. */
1606 && (p
= strrchr (arg
, '=')))
1608 record_temp_file (arg
, delete_always
, delete_failure
);
1612 /* Load specs from a file name named FILENAME, replacing occurrences of
1613 various different types of line-endings, \r\n, \n\r and just \r, with
1617 load_specs (const char *filename
)
1621 struct stat statbuf
;
1628 fnotice (stderr
, "Reading specs from %s\n", filename
);
1630 /* Open and stat the file. */
1631 desc
= open (filename
, O_RDONLY
, 0);
1633 pfatal_with_name (filename
);
1634 if (stat (filename
, &statbuf
) < 0)
1635 pfatal_with_name (filename
);
1637 /* Read contents of file into BUFFER. */
1638 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
1639 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1641 pfatal_with_name (filename
);
1642 buffer
[readlen
] = 0;
1645 specs
= XNEWVEC (char, readlen
+ 1);
1647 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1653 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1655 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1669 /* Read compilation specs from a file named FILENAME,
1670 replacing the default ones.
1672 A suffix which starts with `*' is a definition for
1673 one of the machine-specific sub-specs. The "suffix" should be
1674 *asm, *cc1, *cpp, *link, *startfile, etc.
1675 The corresponding spec is stored in asm_spec, etc.,
1676 rather than in the `compilers' vector.
1678 Anything invalid in the file is a fatal error. */
1681 read_specs (const char *filename
, int main_p
)
1686 buffer
= load_specs (filename
);
1688 /* Scan BUFFER for specs, putting them in the vector. */
1694 char *in
, *out
, *p1
, *p2
, *p3
;
1696 /* Advance P in BUFFER to the next nonblank nocomment line. */
1697 p
= skip_whitespace (p
);
1701 /* Is this a special command that starts with '%'? */
1702 /* Don't allow this for the main specs file, since it would
1703 encourage people to overwrite it. */
1704 if (*p
== '%' && !main_p
)
1707 while (*p
&& *p
!= '\n')
1713 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1714 && (p1
[sizeof "%include" - 1] == ' '
1715 || p1
[sizeof "%include" - 1] == '\t'))
1719 p1
+= sizeof ("%include");
1720 while (*p1
== ' ' || *p1
== '\t')
1723 if (*p1
++ != '<' || p
[-2] != '>')
1724 fatal_error ("specs %%include syntax malformed after "
1726 (long) (p1
- buffer
+ 1));
1729 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1730 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1733 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1734 && (p1
[sizeof "%include_noerr" - 1] == ' '
1735 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1739 p1
+= sizeof "%include_noerr";
1740 while (*p1
== ' ' || *p1
== '\t')
1743 if (*p1
++ != '<' || p
[-2] != '>')
1744 fatal_error ("specs %%include syntax malformed after "
1746 (long) (p1
- buffer
+ 1));
1749 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1751 read_specs (new_filename
, FALSE
);
1752 else if (verbose_flag
)
1753 fnotice (stderr
, "could not find specs file %s\n", p1
);
1756 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1757 && (p1
[sizeof "%rename" - 1] == ' '
1758 || p1
[sizeof "%rename" - 1] == '\t'))
1761 struct spec_list
*sl
;
1762 struct spec_list
*newsl
;
1764 /* Get original name. */
1765 p1
+= sizeof "%rename";
1766 while (*p1
== ' ' || *p1
== '\t')
1769 if (! ISALPHA ((unsigned char) *p1
))
1770 fatal_error ("specs %%rename syntax malformed after "
1772 (long) (p1
- buffer
));
1775 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1778 if (*p2
!= ' ' && *p2
!= '\t')
1779 fatal_error ("specs %%rename syntax malformed after "
1781 (long) (p2
- buffer
));
1785 while (*p2
== ' ' || *p2
== '\t')
1788 if (! ISALPHA ((unsigned char) *p2
))
1789 fatal_error ("specs %%rename syntax malformed after "
1791 (long) (p2
- buffer
));
1793 /* Get new spec name. */
1795 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
1799 fatal_error ("specs %%rename syntax malformed after "
1801 (long) (p3
- buffer
));
1804 for (sl
= specs
; sl
; sl
= sl
->next
)
1805 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1809 fatal_error ("specs %s spec was not found to be renamed", p1
);
1811 if (strcmp (p1
, p2
) == 0)
1814 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
1815 if (strcmp (newsl
->name
, p2
) == 0)
1816 fatal_error ("%s: attempt to rename spec %qs to "
1817 "already defined spec %qs",
1822 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
1824 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
1828 set_spec (p2
, *(sl
->ptr_spec
));
1830 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
1832 *(sl
->ptr_spec
) = "";
1837 fatal_error ("specs unknown %% command after %ld characters",
1838 (long) (p1
- buffer
));
1841 /* Find the colon that should end the suffix. */
1843 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1846 /* The colon shouldn't be missing. */
1848 fatal_error ("specs file malformed after %ld characters",
1849 (long) (p1
- buffer
));
1851 /* Skip back over trailing whitespace. */
1853 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1856 /* Copy the suffix to a string. */
1857 suffix
= save_string (p
, p2
- p
);
1858 /* Find the next line. */
1859 p
= skip_whitespace (p1
+ 1);
1861 fatal_error ("specs file malformed after %ld characters",
1862 (long) (p
- buffer
));
1865 /* Find next blank line or end of string. */
1866 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1869 /* Specs end at the blank line and do not include the newline. */
1870 spec
= save_string (p
, p1
- p
);
1873 /* Delete backslash-newline sequences from the spec. */
1878 if (in
[0] == '\\' && in
[1] == '\n')
1880 else if (in
[0] == '#')
1881 while (*in
&& *in
!= '\n')
1889 if (suffix
[0] == '*')
1891 if (! strcmp (suffix
, "*link_command"))
1892 link_command_spec
= spec
;
1894 set_spec (suffix
+ 1, spec
);
1898 /* Add this pair to the vector. */
1900 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
1902 compilers
[n_compilers
].suffix
= suffix
;
1903 compilers
[n_compilers
].spec
= spec
;
1905 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
1909 link_command_spec
= spec
;
1912 if (link_command_spec
== 0)
1913 fatal_error ("spec file has no spec for linking");
1916 /* Record the names of temporary files we tell compilers to write,
1917 and delete them at the end of the run. */
1919 /* This is the common prefix we use to make temp file names.
1920 It is chosen once for each run of this program.
1921 It is substituted into a spec by %g or %j.
1922 Thus, all temp file names contain this prefix.
1923 In practice, all temp file names start with this prefix.
1925 This prefix comes from the envvar TMPDIR if it is defined;
1926 otherwise, from the P_tmpdir macro if that is defined;
1927 otherwise, in /usr/tmp or /tmp;
1928 or finally the current directory if all else fails. */
1930 static const char *temp_filename
;
1932 /* Length of the prefix. */
1934 static int temp_filename_length
;
1936 /* Define the list of temporary files to delete. */
1941 struct temp_file
*next
;
1944 /* Queue of files to delete on success or failure of compilation. */
1945 static struct temp_file
*always_delete_queue
;
1946 /* Queue of files to delete on failure of compilation. */
1947 static struct temp_file
*failure_delete_queue
;
1949 /* Record FILENAME as a file to be deleted automatically.
1950 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1951 otherwise delete it in any case.
1952 FAIL_DELETE nonzero means delete it if a compilation step fails;
1953 otherwise delete it in any case. */
1956 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
1958 char *const name
= xstrdup (filename
);
1962 struct temp_file
*temp
;
1963 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1964 if (! strcmp (name
, temp
->name
))
1967 temp
= XNEW (struct temp_file
);
1968 temp
->next
= always_delete_queue
;
1970 always_delete_queue
= temp
;
1977 struct temp_file
*temp
;
1978 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1979 if (! strcmp (name
, temp
->name
))
1982 temp
= XNEW (struct temp_file
);
1983 temp
->next
= failure_delete_queue
;
1985 failure_delete_queue
= temp
;
1991 /* Delete all the temporary files whose names we previously recorded. */
1993 #ifndef DELETE_IF_ORDINARY
1994 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
1997 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
1998 if (unlink (NAME) < 0) \
2000 perror_with_name (NAME); \
2005 delete_if_ordinary (const char *name
)
2011 printf ("Delete %s? (y or n) ", name
);
2015 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2018 if (i
== 'y' || i
== 'Y')
2020 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2024 delete_temp_files (void)
2026 struct temp_file
*temp
;
2028 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2029 delete_if_ordinary (temp
->name
);
2030 always_delete_queue
= 0;
2033 /* Delete all the files to be deleted on error. */
2036 delete_failure_queue (void)
2038 struct temp_file
*temp
;
2040 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2041 delete_if_ordinary (temp
->name
);
2045 clear_failure_queue (void)
2047 failure_delete_queue
= 0;
2050 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2052 If DO_MULTI is true iterate over the paths twice, first with multilib
2053 suffix then without, otherwise iterate over the paths once without
2054 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2055 to avoid visiting the same path twice, but we could do better. For
2056 instance, /usr/lib/../lib is considered different from /usr/lib.
2057 At least EXTRA_SPACE chars past the end of the path passed to
2058 CALLBACK are available for use by the callback.
2059 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2061 Returns the value returned by CALLBACK. */
2064 for_each_path (const struct path_prefix
*paths
,
2067 void *(*callback
) (char *, void *),
2068 void *callback_info
)
2070 struct prefix_list
*pl
;
2071 const char *multi_dir
= NULL
;
2072 const char *multi_os_dir
= NULL
;
2073 const char *multi_suffix
;
2074 const char *just_multi_suffix
;
2077 bool skip_multi_dir
= false;
2078 bool skip_multi_os_dir
= false;
2080 multi_suffix
= machine_suffix
;
2081 just_multi_suffix
= just_machine_suffix
;
2082 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2084 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2085 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2086 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2088 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2089 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2093 size_t multi_dir_len
= 0;
2094 size_t multi_os_dir_len
= 0;
2096 size_t just_suffix_len
;
2100 multi_dir_len
= strlen (multi_dir
);
2102 multi_os_dir_len
= strlen (multi_os_dir
);
2103 suffix_len
= strlen (multi_suffix
);
2104 just_suffix_len
= strlen (just_multi_suffix
);
2108 len
= paths
->max_len
+ extra_space
+ 1;
2109 if (suffix_len
> multi_os_dir_len
)
2112 len
+= multi_os_dir_len
;
2113 path
= XNEWVEC (char, len
);
2116 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2118 len
= strlen (pl
->prefix
);
2119 memcpy (path
, pl
->prefix
, len
);
2121 /* Look first in MACHINE/VERSION subdirectory. */
2122 if (!skip_multi_dir
)
2124 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2125 ret
= callback (path
, callback_info
);
2130 /* Some paths are tried with just the machine (ie. target)
2131 subdir. This is used for finding as, ld, etc. */
2133 && pl
->require_machine_suffix
== 2)
2135 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2136 ret
= callback (path
, callback_info
);
2141 /* Now try the base path. */
2142 if (!pl
->require_machine_suffix
2143 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2145 const char *this_multi
;
2146 size_t this_multi_len
;
2148 if (pl
->os_multilib
)
2150 this_multi
= multi_os_dir
;
2151 this_multi_len
= multi_os_dir_len
;
2155 this_multi
= multi_dir
;
2156 this_multi_len
= multi_dir_len
;
2160 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2164 ret
= callback (path
, callback_info
);
2172 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2175 /* Run through the paths again, this time without multilibs.
2176 Don't repeat any we have already seen. */
2179 free (CONST_CAST (char *, multi_dir
));
2181 free (CONST_CAST (char *, multi_suffix
));
2182 multi_suffix
= machine_suffix
;
2183 free (CONST_CAST (char *, just_multi_suffix
));
2184 just_multi_suffix
= just_machine_suffix
;
2187 skip_multi_dir
= true;
2190 free (CONST_CAST (char *, multi_os_dir
));
2191 multi_os_dir
= NULL
;
2194 skip_multi_os_dir
= true;
2199 free (CONST_CAST (char *, multi_dir
));
2200 free (CONST_CAST (char *, multi_suffix
));
2201 free (CONST_CAST (char *, just_multi_suffix
));
2204 free (CONST_CAST (char *, multi_os_dir
));
2210 /* Callback for build_search_list. Adds path to obstack being built. */
2212 struct add_to_obstack_info
{
2219 add_to_obstack (char *path
, void *data
)
2221 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2223 if (info
->check_dir
&& !is_directory (path
, false))
2226 if (!info
->first_time
)
2227 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2229 obstack_grow (info
->ob
, path
, strlen (path
));
2231 info
->first_time
= false;
2235 /* Add or change the value of an environment variable, outputting the
2236 change to standard error if in verbose mode. */
2238 xputenv (const char *string
)
2241 fnotice (stderr
, "%s\n", string
);
2242 putenv (CONST_CAST (char *, string
));
2245 /* Build a list of search directories from PATHS.
2246 PREFIX is a string to prepend to the list.
2247 If CHECK_DIR_P is true we ensure the directory exists.
2248 If DO_MULTI is true, multilib paths are output first, then
2250 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2251 It is also used by the --print-search-dirs flag. */
2254 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2255 bool check_dir
, bool do_multi
)
2257 struct add_to_obstack_info info
;
2259 info
.ob
= &collect_obstack
;
2260 info
.check_dir
= check_dir
;
2261 info
.first_time
= true;
2263 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2264 obstack_1grow (&collect_obstack
, '=');
2266 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2268 obstack_1grow (&collect_obstack
, '\0');
2269 return XOBFINISH (&collect_obstack
, char *);
2272 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2276 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2279 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2282 /* Check whether NAME can be accessed in MODE. This is like access,
2283 except that it never considers directories to be executable. */
2286 access_check (const char *name
, int mode
)
2292 if (stat (name
, &st
) < 0
2293 || S_ISDIR (st
.st_mode
))
2297 return access (name
, mode
);
2300 /* Callback for find_a_file. Appends the file name to the directory
2301 path. If the resulting file exists in the right mode, return the
2302 full pathname to the file. */
2304 struct file_at_path_info
{
2313 file_at_path (char *path
, void *data
)
2315 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2316 size_t len
= strlen (path
);
2318 memcpy (path
+ len
, info
->name
, info
->name_len
);
2319 len
+= info
->name_len
;
2321 /* Some systems have a suffix for executable files.
2322 So try appending that first. */
2323 if (info
->suffix_len
)
2325 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2326 if (access_check (path
, info
->mode
) == 0)
2331 if (access_check (path
, info
->mode
) == 0)
2337 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2338 access to check permissions. If DO_MULTI is true, search multilib
2339 paths then non-multilib paths, otherwise do not search multilib paths.
2340 Return 0 if not found, otherwise return its name, allocated with malloc. */
2343 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2346 struct file_at_path_info info
;
2348 #ifdef DEFAULT_ASSEMBLER
2349 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2350 return xstrdup (DEFAULT_ASSEMBLER
);
2353 #ifdef DEFAULT_LINKER
2354 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2355 return xstrdup (DEFAULT_LINKER
);
2358 /* Determine the filename to execute (special case for absolute paths). */
2360 if (IS_ABSOLUTE_PATH (name
))
2362 if (access (name
, mode
) == 0)
2363 return xstrdup (name
);
2369 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2370 info
.name_len
= strlen (info
.name
);
2371 info
.suffix_len
= strlen (info
.suffix
);
2374 return (char*) for_each_path (pprefix
, do_multi
,
2375 info
.name_len
+ info
.suffix_len
,
2376 file_at_path
, &info
);
2379 /* Ranking of prefixes in the sort list. -B prefixes are put before
2382 enum path_prefix_priority
2384 PREFIX_PRIORITY_B_OPT
,
2385 PREFIX_PRIORITY_LAST
2388 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2389 order according to PRIORITY. Within each PRIORITY, new entries are
2392 If WARN is nonzero, we will warn if no file is found
2393 through this prefix. WARN should point to an int
2394 which will be set to 1 if this entry is used.
2396 COMPONENT is the value to be passed to update_path.
2398 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2399 the complete value of machine_suffix.
2400 2 means try both machine_suffix and just_machine_suffix. */
2403 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2404 const char *component
, /* enum prefix_priority */ int priority
,
2405 int require_machine_suffix
, int os_multilib
)
2407 struct prefix_list
*pl
, **prev
;
2410 for (prev
= &pprefix
->plist
;
2411 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2412 prev
= &(*prev
)->next
)
2415 /* Keep track of the longest prefix. */
2417 prefix
= update_path (prefix
, component
);
2418 len
= strlen (prefix
);
2419 if (len
> pprefix
->max_len
)
2420 pprefix
->max_len
= len
;
2422 pl
= XNEW (struct prefix_list
);
2423 pl
->prefix
= prefix
;
2424 pl
->require_machine_suffix
= require_machine_suffix
;
2425 pl
->priority
= priority
;
2426 pl
->os_multilib
= os_multilib
;
2428 /* Insert after PREV. */
2433 /* Same as add_prefix, but prepending target_system_root to prefix. */
2434 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2436 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2437 const char *component
,
2438 /* enum prefix_priority */ int priority
,
2439 int require_machine_suffix
, int os_multilib
)
2441 if (!IS_ABSOLUTE_PATH (prefix
))
2442 fatal_error ("system path %qs is not absolute", prefix
);
2444 if (target_system_root
)
2446 if (target_sysroot_suffix
)
2447 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2448 prefix
= concat (target_system_root
, prefix
, NULL
);
2450 /* We have to override this because GCC's notion of sysroot
2451 moves along with GCC. */
2455 add_prefix (pprefix
, prefix
, component
, priority
,
2456 require_machine_suffix
, os_multilib
);
2459 /* Execute the command specified by the arguments on the current line of spec.
2460 When using pipes, this includes several piped-together commands
2461 with `|' between them.
2463 Return 0 if successful, -1 if failed. */
2469 int n_commands
; /* # of command. */
2471 struct pex_obj
*pex
;
2474 const char *prog
; /* program name. */
2475 const char **argv
; /* vector of args. */
2478 struct command
*commands
; /* each command buffer with above info. */
2480 gcc_assert (!processing_spec_function
);
2484 string
= find_a_file (&exec_prefixes
, argbuf
[0], X_OK
, false);
2485 argbuf
[0] = (string
) ? string
: argbuf
[0];
2486 insert_wrapper (wrapper_string
);
2489 /* Count # of piped commands. */
2490 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2491 if (strcmp (argbuf
[i
], "|") == 0)
2494 /* Get storage for each command. */
2495 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2497 /* Split argbuf into its separate piped processes,
2498 and record info about each one.
2499 Also search for the programs that are to be run. */
2501 commands
[0].prog
= argbuf
[0]; /* first command. */
2502 commands
[0].argv
= &argbuf
[0];
2504 if (!wrapper_string
)
2506 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2507 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2510 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2511 if (strcmp (argbuf
[i
], "|") == 0)
2512 { /* each command. */
2513 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2514 fatal_error ("-pipe not supported");
2516 argbuf
[i
] = 0; /* termination of command args. */
2517 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2518 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2519 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2522 commands
[n_commands
].argv
[0] = string
;
2526 argbuf
[argbuf_index
] = 0;
2528 /* If -v, print what we are about to do, and maybe query. */
2532 /* For help listings, put a blank line between sub-processes. */
2533 if (print_help_list
)
2534 fputc ('\n', stderr
);
2536 /* Print each piped command as a separate line. */
2537 for (i
= 0; i
< n_commands
; i
++)
2539 const char *const *j
;
2541 if (verbose_only_flag
)
2543 for (j
= commands
[i
].argv
; *j
; j
++)
2546 for (p
= *j
; *p
; ++p
)
2547 if (!ISALNUM ((unsigned char) *p
)
2548 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
2552 fprintf (stderr
, " \"");
2553 for (p
= *j
; *p
; ++p
)
2555 if (*p
== '"' || *p
== '\\' || *p
== '$')
2556 fputc ('\\', stderr
);
2559 fputc ('"', stderr
);
2562 fprintf (stderr
, " %s", *j
);
2566 for (j
= commands
[i
].argv
; *j
; j
++)
2567 fprintf (stderr
, " %s", *j
);
2569 /* Print a pipe symbol after all but the last command. */
2570 if (i
+ 1 != n_commands
)
2571 fprintf (stderr
, " |");
2572 fprintf (stderr
, "\n");
2575 if (verbose_only_flag
!= 0)
2577 /* verbose_only_flag should act as if the spec was
2578 executed, so increment execution_count before
2579 returning. This prevents spurious warnings about
2580 unused linker input files, etc. */
2585 fnotice (stderr
, "\nGo ahead? (y or n) ");
2589 while (getchar () != '\n')
2592 if (i
!= 'y' && i
!= 'Y')
2597 #ifdef ENABLE_VALGRIND_CHECKING
2598 /* Run the each command through valgrind. To simplify prepending the
2599 path to valgrind and the option "-q" (for quiet operation unless
2600 something triggers), we allocate a separate argv array. */
2602 for (i
= 0; i
< n_commands
; i
++)
2608 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2611 argv
= XALLOCAVEC (const char *, argc
+ 3);
2613 argv
[0] = VALGRIND_PATH
;
2615 for (j
= 2; j
< argc
+ 2; j
++)
2616 argv
[j
] = commands
[i
].argv
[j
- 2];
2619 commands
[i
].argv
= argv
;
2620 commands
[i
].prog
= argv
[0];
2624 /* Run each piped subprocess. */
2626 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
2627 ? PEX_RECORD_TIMES
: 0),
2628 progname
, temp_filename
);
2630 fatal_error ("pex_init failed: %m");
2632 for (i
= 0; i
< n_commands
; i
++)
2636 const char *string
= commands
[i
].argv
[0];
2638 errmsg
= pex_run (pex
,
2639 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
2640 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
2641 string
, CONST_CAST (char **, commands
[i
].argv
),
2646 fatal_error (errmsg
);
2650 pfatal_with_name (errmsg
);
2654 if (string
!= commands
[i
].prog
)
2655 free (CONST_CAST (char *, string
));
2660 /* Wait for all the subprocesses to finish. */
2664 struct pex_time
*times
= NULL
;
2667 statuses
= (int *) alloca (n_commands
* sizeof (int));
2668 if (!pex_get_status (pex
, n_commands
, statuses
))
2669 fatal_error ("failed to get exit status: %m");
2671 if (report_times
|| report_times_to_file
)
2673 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
2674 if (!pex_get_times (pex
, n_commands
, times
))
2675 fatal_error ("failed to get process times: %m");
2680 for (i
= 0; i
< n_commands
; ++i
)
2682 int status
= statuses
[i
];
2684 if (WIFSIGNALED (status
))
2687 /* SIGPIPE is a special case. It happens in -pipe mode
2688 when the compiler dies before the preprocessor is done,
2689 or the assembler dies before the compiler is done.
2690 There's generally been an error already, and this is
2691 just fallout. So don't generate another error unless
2692 we would otherwise have succeeded. */
2693 if (WTERMSIG (status
) == SIGPIPE
2694 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2701 internal_error ("%s (program %s)",
2702 strsignal (WTERMSIG (status
)), commands
[i
].prog
);
2704 else if (WIFEXITED (status
)
2705 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2707 if (WEXITSTATUS (status
) > greatest_status
)
2708 greatest_status
= WEXITSTATUS (status
);
2712 if (report_times
|| report_times_to_file
)
2714 struct pex_time
*pt
= ×
[i
];
2717 ut
= ((double) pt
->user_seconds
2718 + (double) pt
->user_microseconds
/ 1.0e6
);
2719 st
= ((double) pt
->system_seconds
2720 + (double) pt
->system_microseconds
/ 1.0e6
);
2725 fnotice (stderr
, "# %s %.2f %.2f\n",
2726 commands
[i
].prog
, ut
, st
);
2728 if (report_times_to_file
)
2731 const char *const *j
;
2733 fprintf (report_times_to_file
, "%g %g", ut
, st
);
2735 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
2738 for (p
= *j
; *p
; ++p
)
2739 if (*p
== '"' || *p
== '\\' || *p
== '$'
2745 fprintf (report_times_to_file
, " \"");
2746 for (p
= *j
; *p
; ++p
)
2748 if (*p
== '"' || *p
== '\\' || *p
== '$')
2749 fputc ('\\', report_times_to_file
);
2750 fputc (*p
, report_times_to_file
);
2752 fputc ('"', report_times_to_file
);
2755 fprintf (report_times_to_file
, " %s", *j
);
2758 fputc ('\n', report_times_to_file
);
2768 /* Find all the switches given to us
2769 and make a vector describing them.
2770 The elements of the vector are strings, one per switch given.
2771 If a switch uses following arguments, then the `part1' field
2772 is the switch itself and the `args' field
2773 is a null-terminated vector containing the following arguments.
2774 Bits in the `live_cond' field are:
2775 SWITCH_LIVE to indicate this switch is true in a conditional spec.
2776 SWITCH_FALSE to indicate this switch is overridden by a later switch.
2777 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
2778 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored
2779 in all do_spec calls afterwards. Used for %<S from self specs.
2780 The `validated' field is nonzero if any spec has looked at this switch;
2781 if it remains zero at the end of the run, it must be meaningless. */
2783 #define SWITCH_LIVE 0x1
2784 #define SWITCH_FALSE 0x2
2785 #define SWITCH_IGNORE 0x4
2786 #define SWITCH_IGNORE_PERMANENTLY 0x8
2792 unsigned int live_cond
;
2793 unsigned char validated
;
2794 unsigned char ordering
;
2797 static struct switchstr
*switches
;
2799 static int n_switches
;
2801 static int n_switches_alloc
;
2803 /* Set to zero if -fcompare-debug is disabled, positive if it's
2804 enabled and we're running the first compilation, negative if it's
2805 enabled and we're running the second compilation. For most of the
2806 time, it's in the range -1..1, but it can be temporarily set to 2
2807 or 3 to indicate that the -fcompare-debug flags didn't come from
2808 the command-line, but rather from the GCC_COMPARE_DEBUG environment
2809 variable, until a synthesized -fcompare-debug flag is added to the
2813 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
2814 int compare_debug_second
;
2816 /* Set to the flags that should be passed to the second compilation in
2817 a -fcompare-debug compilation. */
2818 const char *compare_debug_opt
;
2820 static struct switchstr
*switches_debug_check
[2];
2822 static int n_switches_debug_check
[2];
2824 static char *debug_check_temp_file
[2];
2826 /* Language is one of three things:
2828 1) The name of a real programming language.
2829 2) NULL, indicating that no one has figured out
2831 3) '*', indicating that the file should be passed
2836 const char *language
;
2837 struct compiler
*incompiler
;
2842 /* Also a vector of input files specified. */
2844 static struct infile
*infiles
;
2848 static int n_infiles_alloc
;
2850 /* True if multiple input files are being compiled to a single
2853 static bool combine_inputs
;
2855 /* This counts the number of libraries added by lang_specific_driver, so that
2856 we can tell if there were any user supplied any files or libraries. */
2858 static int added_libraries
;
2860 /* And a vector of corresponding output files is made up later. */
2862 const char **outfiles
;
2864 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2866 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2867 is true if we should look for an executable suffix. DO_OBJ
2868 is true if we should look for an object suffix. */
2871 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
2872 int do_obj ATTRIBUTE_UNUSED
)
2874 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2882 len
= strlen (name
);
2884 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2885 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2886 if (do_obj
&& len
> 2
2887 && name
[len
- 2] == '.'
2888 && name
[len
- 1] == 'o')
2890 obstack_grow (&obstack
, name
, len
- 2);
2891 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
2892 name
= XOBFINISH (&obstack
, const char *);
2896 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2897 /* If there is no filetype, make it the executable suffix (which includes
2898 the "."). But don't get confused if we have just "-o". */
2899 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2902 for (i
= len
- 1; i
>= 0; i
--)
2903 if (IS_DIR_SEPARATOR (name
[i
]))
2906 for (i
++; i
< len
; i
++)
2910 obstack_grow (&obstack
, name
, len
);
2911 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
2912 strlen (TARGET_EXECUTABLE_SUFFIX
));
2913 name
= XOBFINISH (&obstack
, const char *);
2920 /* Display the command line switches accepted by gcc. */
2924 printf (_("Usage: %s [options] file...\n"), progname
);
2925 fputs (_("Options:\n"), stdout
);
2927 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
2928 fputs (_(" --help Display this information\n"), stdout
);
2929 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
2930 fputs (_(" --help={target|optimizers|warnings|params|[^]{joined|separate|undocumented}}[,...]\n"), stdout
);
2931 fputs (_(" Display specific types of command line options\n"), stdout
);
2933 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
2934 fputs (_(" --version Display compiler version information\n"), stdout
);
2935 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
2936 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
2937 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
2938 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
2939 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
2940 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
2941 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
2942 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
2944 -print-multi-lib Display the mapping between command line options and\n\
2945 multiple library search directories\n"), stdout
);
2946 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
2947 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout
);
2948 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
2949 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
2950 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
2951 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
2952 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
2953 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
2954 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
2955 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
2956 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout
);
2958 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
2959 prefixes to other gcc components\n"), stdout
);
2960 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
2961 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
2962 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
2963 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
2965 --sysroot=<directory> Use <directory> as the root directory for headers\n\
2966 and libraries\n"), stdout
);
2967 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
2968 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
2969 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
2970 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
2971 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
2972 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
2973 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
2975 -x <language> Specify the language of the following input files\n\
2976 Permissible languages include: c c++ assembler none\n\
2977 'none' means revert to the default behavior of\n\
2978 guessing the language based on the file's extension\n\
2982 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
2983 passed on to the various sub-processes invoked by %s. In order to pass\n\
2984 other options on to these processes the -W<letter> options must be used.\n\
2987 /* The rest of the options are displayed by invocations of the various
2992 add_preprocessor_option (const char *option
, int len
)
2994 n_preprocessor_options
++;
2996 if (! preprocessor_options
)
2997 preprocessor_options
= XNEWVEC (char *, n_preprocessor_options
);
2999 preprocessor_options
= XRESIZEVEC (char *, preprocessor_options
,
3000 n_preprocessor_options
);
3002 preprocessor_options
[n_preprocessor_options
- 1] =
3003 save_string (option
, len
);
3007 add_assembler_option (const char *option
, int len
)
3009 n_assembler_options
++;
3011 if (! assembler_options
)
3012 assembler_options
= XNEWVEC (char *, n_assembler_options
);
3014 assembler_options
= XRESIZEVEC (char *, assembler_options
,
3015 n_assembler_options
);
3017 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3021 add_linker_option (const char *option
, int len
)
3025 if (! linker_options
)
3026 linker_options
= XNEWVEC (char *, n_linker_options
);
3028 linker_options
= XRESIZEVEC (char *, linker_options
, n_linker_options
);
3030 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3033 /* Allocate space for an input file in infiles. */
3038 if (n_infiles_alloc
== 0)
3040 n_infiles_alloc
= 16;
3041 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3043 else if (n_infiles_alloc
== n_infiles
)
3045 n_infiles_alloc
*= 2;
3046 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3050 /* Store an input file with the given NAME and LANGUAGE in
3054 add_infile (const char *name
, const char *language
)
3057 infiles
[n_infiles
].name
= name
;
3058 infiles
[n_infiles
++].language
= language
;
3061 /* Allocate space for a switch in switches. */
3066 if (n_switches_alloc
== 0)
3068 n_switches_alloc
= 16;
3069 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3071 else if (n_switches_alloc
== n_switches
)
3073 n_switches_alloc
*= 2;
3074 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3078 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3079 as validated if VALIDATED. */
3082 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3086 switches
[n_switches
].part1
= opt
+ 1;
3088 switches
[n_switches
].args
= 0;
3091 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3092 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3093 switches
[n_switches
].args
[n_args
] = NULL
;
3096 switches
[n_switches
].live_cond
= 0;
3097 switches
[n_switches
].validated
= validated
;
3098 switches
[n_switches
].ordering
= 0;
3102 /* Handle an option DECODED that is unknown to the option-processing
3103 machinery, but may be known to specs. */
3106 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3108 save_switch (decoded
->canonical_option
[0],
3109 decoded
->canonical_option_num_elements
- 1,
3110 &decoded
->canonical_option
[1], false);
3115 /* Handle an option DECODED that is not marked as CL_DRIVER.
3116 LANG_MASK will always be CL_DRIVER. */
3119 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3120 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3122 /* At this point, non-driver options are accepted (and expected to
3123 be passed down by specs) unless marked to be rejected by the
3124 driver. Options to be rejected by the driver but accepted by the
3125 compilers proper are treated just like completely unknown
3127 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3129 if (option
->flags
& CL_REJECT_DRIVER
)
3130 error ("unrecognized command line option %qs",
3131 decoded
->orig_option_with_args_text
);
3133 driver_unknown_option_callback (decoded
);
3136 /* Note that an option (index OPT_INDEX, argument ARG, value VALUE)
3137 has been successfully handled with a handler for mask MASK. */
3140 driver_post_handling_callback (const struct cl_decoded_option
*decoded ATTRIBUTE_UNUSED
,
3141 unsigned int mask ATTRIBUTE_UNUSED
)
3143 /* Nothing to do here. */
3146 static const char *spec_lang
= 0;
3147 static int last_language_n_infiles
;
3149 /* Handle a driver option; arguments and return value as for
3153 driver_handle_option (struct gcc_options
*opts
,
3154 struct gcc_options
*opts_set
,
3155 const struct cl_decoded_option
*decoded
,
3156 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
3157 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
)
3159 size_t opt_index
= decoded
->opt_index
;
3160 const char *arg
= decoded
->arg
;
3161 const char *compare_debug_replacement_opt
;
3162 int value
= decoded
->value
;
3163 bool validated
= false;
3164 bool do_save
= true;
3166 gcc_assert (opts
== &global_options
);
3167 gcc_assert (opts_set
== &global_options_set
);
3168 gcc_assert (kind
== DK_UNSPECIFIED
);
3174 struct spec_list
*sl
;
3176 for (sl
= specs
; sl
; sl
= sl
->next
)
3177 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3178 if (link_command_spec
)
3179 printf ("*link_command:\n%s\n\n", link_command_spec
);
3183 case OPT_dumpversion
:
3184 printf ("%s\n", spec_version
);
3187 case OPT_dumpmachine
:
3188 printf ("%s\n", spec_machine
);
3194 /* CPP driver cannot obtain switch from cc1_options. */
3196 add_preprocessor_option ("--version", strlen ("--version"));
3197 add_assembler_option ("--version", strlen ("--version"));
3198 add_linker_option ("--version", strlen ("--version"));
3202 print_help_list
= 1;
3204 /* CPP driver cannot obtain switch from cc1_options. */
3206 add_preprocessor_option ("--help", 6);
3207 add_assembler_option ("--help", 6);
3208 add_linker_option ("--help", 6);
3212 print_subprocess_help
= 2;
3215 case OPT__target_help
:
3216 print_subprocess_help
= 1;
3218 /* CPP driver cannot obtain switch from cc1_options. */
3220 add_preprocessor_option ("--target-help", 13);
3221 add_assembler_option ("--target-help", 13);
3222 add_linker_option ("--target-help", 13);
3225 case OPT_pass_exit_codes
:
3226 case OPT_print_search_dirs
:
3227 case OPT_print_file_name_
:
3228 case OPT_print_prog_name_
:
3229 case OPT_print_multi_lib
:
3230 case OPT_print_multi_directory
:
3231 case OPT_print_sysroot
:
3232 case OPT_print_multi_os_directory
:
3233 case OPT_print_sysroot_headers_suffix
:
3236 /* These options set the variables specified in common.opt
3237 automatically, and do not need to be saved for spec
3242 case OPT_print_libgcc_file_name
:
3243 print_file_name
= "libgcc.a";
3247 case OPT_fcompare_debug_second
:
3248 compare_debug_second
= 1;
3251 case OPT_fcompare_debug
:
3255 compare_debug_replacement_opt
= "-fcompare-debug=";
3257 goto compare_debug_with_arg
;
3260 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
3262 goto compare_debug_with_arg
;
3269 case OPT_fcompare_debug_
:
3270 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
3271 compare_debug_with_arg
:
3272 gcc_assert (decoded
->canonical_option_num_elements
== 1);
3273 gcc_assert (arg
!= NULL
);
3278 if (compare_debug
< 0)
3279 compare_debug_opt
= NULL
;
3281 compare_debug_opt
= arg
;
3282 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
);
3288 /* Pass the rest of this option to the assembler. */
3290 /* Split the argument at commas. */
3292 for (j
= 0; arg
[j
]; j
++)
3295 add_assembler_option (arg
+ prev
, j
- prev
);
3299 /* Record the part after the last comma. */
3300 add_assembler_option (arg
+ prev
, j
- prev
);
3308 /* Pass the rest of this option to the preprocessor. */
3310 /* Split the argument at commas. */
3312 for (j
= 0; arg
[j
]; j
++)
3315 add_preprocessor_option (arg
+ prev
, j
- prev
);
3319 /* Record the part after the last comma. */
3320 add_preprocessor_option (arg
+ prev
, j
- prev
);
3328 /* Split the argument at commas. */
3330 for (j
= 0; arg
[j
]; j
++)
3333 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
3336 /* Record the part after the last comma. */
3337 add_infile (arg
+ prev
, "*");
3343 add_infile (arg
, "*");
3347 case OPT_Xpreprocessor
:
3348 add_preprocessor_option (arg
, strlen (arg
));
3352 case OPT_Xassembler
:
3353 add_assembler_option (arg
, strlen (arg
));
3358 /* POSIX allows separation of -l and the lib arg; canonicalize
3359 by concatenating -l with its arg */
3360 add_infile (concat ("-l", arg
, NULL
), "*");
3365 /* Similarly, canonicalize -L for linkers that may not accept
3366 separate arguments. */
3367 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
);
3370 case OPT_save_temps
:
3371 save_temps_flag
= SAVE_TEMPS_CWD
;
3375 case OPT_save_temps_
:
3376 if (strcmp (arg
, "cwd") == 0)
3377 save_temps_flag
= SAVE_TEMPS_CWD
;
3378 else if (strcmp (arg
, "obj") == 0
3379 || strcmp (arg
, "object") == 0)
3380 save_temps_flag
= SAVE_TEMPS_OBJ
;
3382 fatal_error ("%qs is an unknown -save-temps option",
3383 decoded
->orig_option_with_args_text
);
3386 case OPT_no_canonical_prefixes
:
3387 /* Already handled as a special case, so ignored here. */
3393 /* These options set the variables specified in common.opt
3394 automatically, but do need to be saved for spec
3400 struct user_specs
*user
= XNEW (struct user_specs
);
3402 user
->next
= (struct user_specs
*) 0;
3403 user
->filename
= arg
;
3404 if (user_specs_tail
)
3405 user_specs_tail
->next
= user
;
3407 user_specs_head
= user
;
3408 user_specs_tail
= user
;
3414 target_system_root
= arg
;
3415 target_system_root_changed
= 1;
3420 if (report_times_to_file
)
3421 fclose (report_times_to_file
);
3422 report_times_to_file
= fopen (arg
, "a");
3428 This is similar to -v except that there is no execution
3429 of the commands and the echoed arguments are quoted. It
3430 is intended for use in shell scripts to capture the
3431 driver-generated command line. */
3432 verbose_only_flag
++;
3439 size_t len
= strlen (arg
);
3441 /* Catch the case where the user has forgotten to append a
3442 directory separator to the path. Note, they may be using
3443 -B to add an executable name prefix, eg "i386-elf-", in
3444 order to distinguish between multiple installations of
3445 GCC in the same directory. Hence we must check to see
3446 if appending a directory separator actually makes a
3447 valid directory name. */
3448 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
3449 && is_directory (arg
, false))
3451 char *tmp
= XNEWVEC (char, len
+ 2);
3453 tmp
[len
] = DIR_SEPARATOR
;
3458 add_prefix (&exec_prefixes
, arg
, NULL
,
3459 PREFIX_PRIORITY_B_OPT
, 0, 0);
3460 add_prefix (&startfile_prefixes
, arg
, NULL
,
3461 PREFIX_PRIORITY_B_OPT
, 0, 0);
3462 add_prefix (&include_prefixes
, arg
, NULL
,
3463 PREFIX_PRIORITY_B_OPT
, 0, 0);
3468 case OPT_v
: /* Print our subcommands and print versions. */
3474 if (!strcmp (spec_lang
, "none"))
3475 /* Suppress the warning if -xnone comes after the last input
3476 file, because alternate command interfaces like g++ might
3477 find it useful to place -xnone after each input file. */
3480 last_language_n_infiles
= n_infiles
;
3486 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3487 arg
= convert_filename (arg
, ! have_c
, 0);
3489 /* Save the output name in case -save-temps=obj was used. */
3490 save_temps_prefix
= xstrdup (arg
);
3491 /* On some systems, ld cannot handle "-o" without a space. So
3492 split the option from its argument. */
3493 save_switch ("-o", 1, &arg
, validated
);
3496 case OPT_static_libgcc
:
3497 case OPT_shared_libgcc
:
3498 case OPT_static_libgfortran
:
3499 case OPT_static_libstdc__
:
3500 /* These are always valid, since gcc.c itself understands the
3501 first two, gfortranspec.c understands -static-libgfortran and
3502 g++spec.c understands -static-libstdc++ */
3507 /* Various driver options need no special processing at this
3508 point, having been handled in a prescan above or being
3509 handled by specs. */
3514 save_switch (decoded
->canonical_option
[0],
3515 decoded
->canonical_option_num_elements
- 1,
3516 &decoded
->canonical_option
[1], validated
);
3520 /* Create the vector `switches' and its contents.
3521 Store its length in `n_switches'. */
3524 process_command (unsigned int decoded_options_count
,
3525 struct cl_decoded_option
*decoded_options
)
3529 const char *tooldir_prefix
;
3530 char *(*get_relative_prefix
) (const char *, const char *,
3531 const char *) = NULL
;
3532 struct cl_option_handlers handlers
;
3535 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3539 added_libraries
= 0;
3541 /* Figure compiler version from version string. */
3543 compiler_version
= temp1
= xstrdup (version_string
);
3545 for (; *temp1
; ++temp1
)
3554 /* Handle any -no-canonical-prefixes flag early, to assign the function
3555 that builds relative prefixes. This function creates default search
3556 paths that are needed later in normal option handling. */
3558 for (j
= 1; j
< decoded_options_count
; j
++)
3560 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
3562 get_relative_prefix
= make_relative_prefix_ignore_links
;
3566 if (! get_relative_prefix
)
3567 get_relative_prefix
= make_relative_prefix
;
3569 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3570 see if we can create it from the pathname specified in
3571 decoded_options[0].arg. */
3573 gcc_libexec_prefix
= standard_libexec_prefix
;
3575 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3576 if (!gcc_exec_prefix
)
3578 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3579 standard_bindir_prefix
,
3580 standard_exec_prefix
);
3581 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3582 standard_bindir_prefix
,
3583 standard_libexec_prefix
);
3584 if (gcc_exec_prefix
)
3585 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3589 /* make_relative_prefix requires a program name, but
3590 GCC_EXEC_PREFIX is typically a directory name with a trailing
3591 / (which is ignored by make_relative_prefix), so append a
3593 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3594 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
3595 standard_exec_prefix
,
3596 standard_libexec_prefix
);
3598 /* The path is unrelocated, so fallback to the original setting. */
3599 if (!gcc_libexec_prefix
)
3600 gcc_libexec_prefix
= standard_libexec_prefix
;
3606 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3607 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3608 or an automatically created GCC_EXEC_PREFIX from
3609 decoded_options[0].arg. */
3611 /* Do language-specific adjustment/addition of flags. */
3612 lang_specific_driver (&decoded_options
, &decoded_options_count
,
3615 if (gcc_exec_prefix
)
3617 int len
= strlen (gcc_exec_prefix
);
3619 if (len
> (int) sizeof ("/lib/gcc/") - 1
3620 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3622 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3623 if (IS_DIR_SEPARATOR (*temp
)
3624 && strncmp (temp
+ 1, "lib", 3) == 0
3625 && IS_DIR_SEPARATOR (temp
[4])
3626 && strncmp (temp
+ 5, "gcc", 3) == 0)
3627 len
-= sizeof ("/lib/gcc/") - 1;
3630 set_std_prefix (gcc_exec_prefix
, len
);
3631 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3632 PREFIX_PRIORITY_LAST
, 0, 0);
3633 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3634 PREFIX_PRIORITY_LAST
, 0, 0);
3637 /* COMPILER_PATH and LIBRARY_PATH have values
3638 that are lists of directory names with colons. */
3640 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3643 const char *startp
, *endp
;
3644 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3646 startp
= endp
= temp
;
3649 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3651 strncpy (nstore
, startp
, endp
- startp
);
3653 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3654 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3656 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3657 nstore
[endp
- startp
+ 1] = 0;
3660 nstore
[endp
- startp
] = 0;
3661 add_prefix (&exec_prefixes
, nstore
, 0,
3662 PREFIX_PRIORITY_LAST
, 0, 0);
3663 add_prefix (&include_prefixes
, nstore
, 0,
3664 PREFIX_PRIORITY_LAST
, 0, 0);
3667 endp
= startp
= endp
+ 1;
3674 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3675 if (temp
&& *cross_compile
== '0')
3677 const char *startp
, *endp
;
3678 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3680 startp
= endp
= temp
;
3683 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3685 strncpy (nstore
, startp
, endp
- startp
);
3687 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3688 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3690 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3691 nstore
[endp
- startp
+ 1] = 0;
3694 nstore
[endp
- startp
] = 0;
3695 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3696 PREFIX_PRIORITY_LAST
, 0, 1);
3699 endp
= startp
= endp
+ 1;
3706 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3707 GET_ENVIRONMENT (temp
, "LPATH");
3708 if (temp
&& *cross_compile
== '0')
3710 const char *startp
, *endp
;
3711 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3713 startp
= endp
= temp
;
3716 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3718 strncpy (nstore
, startp
, endp
- startp
);
3720 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3721 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3723 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3724 nstore
[endp
- startp
+ 1] = 0;
3727 nstore
[endp
- startp
] = 0;
3728 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3729 PREFIX_PRIORITY_LAST
, 0, 1);
3732 endp
= startp
= endp
+ 1;
3739 /* Process the options and store input files and switches in their
3742 last_language_n_infiles
= -1;
3744 handlers
.unknown_option_callback
= driver_unknown_option_callback
;
3745 handlers
.wrong_lang_callback
= driver_wrong_lang_callback
;
3746 handlers
.post_handling_callback
= driver_post_handling_callback
;
3747 handlers
.num_handlers
= 1;
3748 handlers
.handlers
[0].handler
= driver_handle_option
;
3749 handlers
.handlers
[0].mask
= CL_DRIVER
;
3751 for (j
= 1; j
< decoded_options_count
; j
++)
3753 switch (decoded_options
[j
].opt_index
)
3765 for (j
= 1; j
< decoded_options_count
; j
++)
3767 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
3769 const char *arg
= decoded_options
[j
].arg
;
3770 const char *p
= strrchr (arg
, '@');
3774 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3775 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
3777 /* For LTO static archive support we handle input file
3778 specifications that are composed of a filename and
3779 an offset like FNAME@OFFSET. */
3782 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
3783 && strlen (p
) == (unsigned int)consumed
)
3785 fname
= (char *)xmalloc (p
- arg
+ 1);
3786 memcpy (fname
, arg
, p
- arg
);
3787 fname
[p
- arg
] = '\0';
3788 /* Only accept non-stdin and existing FNAME parts, otherwise
3789 try with the full name. */
3790 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
3793 fname
= xstrdup (arg
);
3797 fname
= xstrdup (arg
);
3799 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
3800 perror_with_name (fname
);
3802 add_infile (arg
, spec_lang
);
3808 read_cmdline_option (&global_options
, &global_options_set
,
3809 decoded_options
+ j
, CL_DRIVER
, &handlers
,
3813 /* If -save-temps=obj and -o name, create the prefix to use for %b.
3814 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
3815 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
3817 save_temps_length
= strlen (save_temps_prefix
);
3818 temp
= strrchr (lbasename (save_temps_prefix
), '.');
3821 save_temps_length
-= strlen (temp
);
3822 save_temps_prefix
[save_temps_length
] = '\0';
3826 else if (save_temps_prefix
!= NULL
)
3828 free (save_temps_prefix
);
3829 save_temps_prefix
= NULL
;
3832 if (save_temps_flag
&& use_pipes
)
3834 /* -save-temps overrides -pipe, so that temp files are produced */
3835 if (save_temps_flag
)
3836 warning (0, "-pipe ignored because -save-temps specified");
3842 const char *gcd
= getenv ("GCC_COMPARE_DEBUG");
3844 if (gcd
&& gcd
[0] == '-')
3847 compare_debug_opt
= gcd
;
3849 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
3852 compare_debug_opt
= "-gtoggle";
3855 else if (compare_debug
< 0)
3858 gcc_assert (!compare_debug_opt
);
3861 /* Set up the search paths. We add directories that we expect to
3862 contain GNU Toolchain components before directories specified by
3863 the machine description so that we will find GNU components (like
3864 the GNU assembler) before those of the host system. */
3866 /* If we don't know where the toolchain has been installed, use the
3867 configured-in locations. */
3868 if (!gcc_exec_prefix
)
3871 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
3872 PREFIX_PRIORITY_LAST
, 1, 0);
3873 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
3874 PREFIX_PRIORITY_LAST
, 2, 0);
3875 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3876 PREFIX_PRIORITY_LAST
, 2, 0);
3878 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3879 PREFIX_PRIORITY_LAST
, 1, 0);
3882 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
3883 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3884 dir_separator_str
, NULL
);
3886 /* Look for tools relative to the location from which the driver is
3887 running, or, if that is not available, the configured prefix. */
3889 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
3890 spec_machine
, dir_separator_str
,
3891 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3893 add_prefix (&exec_prefixes
,
3894 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3895 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
3896 add_prefix (&startfile_prefixes
,
3897 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3898 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
3900 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
3901 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
3902 then consider it to relocate with the rest of the GCC installation
3903 if GCC_EXEC_PREFIX is set.
3904 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
3905 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
3907 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3908 standard_bindir_prefix
,
3909 target_system_root
);
3910 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
3912 target_system_root
= tmp_prefix
;
3913 target_system_root_changed
= 1;
3918 /* More prefixes are enabled in main, after we read the specs file
3919 and determine whether this is cross-compilation or not. */
3921 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
3922 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
3924 if (compare_debug
== 2 || compare_debug
== 3)
3927 switches
[n_switches
].part1
= concat ("fcompare-debug=",
3930 switches
[n_switches
].args
= 0;
3931 switches
[n_switches
].live_cond
= 0;
3932 switches
[n_switches
].validated
= 0;
3933 switches
[n_switches
].ordering
= 0;
3938 /* Ensure we only invoke each subprocess once. */
3939 if (print_subprocess_help
|| print_help_list
|| print_version
)
3943 /* Create a dummy input file, so that we can pass
3944 the help option on to the various sub-processes. */
3945 add_infile ("help-dummy", "c");
3949 switches
[n_switches
].part1
= 0;
3951 infiles
[n_infiles
].name
= 0;
3954 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
3955 and place that in the environment. */
3958 set_collect_gcc_options (void)
3963 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
3965 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
3966 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
3969 for (i
= 0; (int) i
< n_switches
; i
++)
3971 const char *const *args
;
3974 obstack_grow (&collect_obstack
, " ", 1);
3978 /* Ignore elided switches. */
3979 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) != 0)
3982 obstack_grow (&collect_obstack
, "'-", 2);
3983 q
= switches
[i
].part1
;
3984 while ((p
= strchr (q
, '\'')))
3986 obstack_grow (&collect_obstack
, q
, p
- q
);
3987 obstack_grow (&collect_obstack
, "'\\''", 4);
3990 obstack_grow (&collect_obstack
, q
, strlen (q
));
3991 obstack_grow (&collect_obstack
, "'", 1);
3993 for (args
= switches
[i
].args
; args
&& *args
; args
++)
3995 obstack_grow (&collect_obstack
, " '", 2);
3997 while ((p
= strchr (q
, '\'')))
3999 obstack_grow (&collect_obstack
, q
, p
- q
);
4000 obstack_grow (&collect_obstack
, "'\\''", 4);
4003 obstack_grow (&collect_obstack
, q
, strlen (q
));
4004 obstack_grow (&collect_obstack
, "'", 1);
4007 obstack_grow (&collect_obstack
, "\0", 1);
4008 xputenv (XOBFINISH (&collect_obstack
, char *));
4011 /* Process a spec string, accumulating and running commands. */
4013 /* These variables describe the input file name.
4014 input_file_number is the index on outfiles of this file,
4015 so that the output file name can be stored for later use by %o.
4016 input_basename is the start of the part of the input file
4017 sans all directory names, and basename_length is the number
4018 of characters starting there excluding the suffix .c or whatever. */
4020 static const char *gcc_input_filename
;
4021 static int input_file_number
;
4022 size_t input_filename_length
;
4023 static int basename_length
;
4024 static int suffixed_basename_length
;
4025 static const char *input_basename
;
4026 static const char *input_suffix
;
4027 #ifndef HOST_LACKS_INODE_NUMBERS
4028 static struct stat input_stat
;
4030 static int input_stat_set
;
4032 /* The compiler used to process the current input file. */
4033 static struct compiler
*input_file_compiler
;
4035 /* These are variables used within do_spec and do_spec_1. */
4037 /* Nonzero if an arg has been started and not yet terminated
4038 (with space, tab or newline). */
4039 static int arg_going
;
4041 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4042 is a temporary file name. */
4043 static int delete_this_arg
;
4045 /* Nonzero means %w has been seen; the next arg to be terminated
4046 is the output file name of this compilation. */
4047 static int this_is_output_file
;
4049 /* Nonzero means %s has been seen; the next arg to be terminated
4050 is the name of a library file and we should try the standard
4051 search dirs for it. */
4052 static int this_is_library_file
;
4054 /* Nonzero means %T has been seen; the next arg to be terminated
4055 is the name of a linker script and we should try all of the
4056 standard search dirs for it. If it is found insert a --script
4057 command line switch and then substitute the full path in place,
4058 otherwise generate an error message. */
4059 static int this_is_linker_script
;
4061 /* Nonzero means that the input of this command is coming from a pipe. */
4062 static int input_from_pipe
;
4064 /* Nonnull means substitute this for any suffix when outputting a switches
4066 static const char *suffix_subst
;
4068 /* If there is an argument being accumulated, terminate it and store it. */
4071 end_going_arg (void)
4077 obstack_1grow (&obstack
, 0);
4078 string
= XOBFINISH (&obstack
, const char *);
4079 if (this_is_library_file
)
4080 string
= find_file (string
);
4081 if (this_is_linker_script
)
4083 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4085 if (full_script_path
== NULL
)
4087 error ("unable to locate default linker script %qs in the library search paths", string
);
4088 /* Script was not found on search path. */
4091 store_arg ("--script", false, false);
4092 string
= full_script_path
;
4094 store_arg (string
, delete_this_arg
, this_is_output_file
);
4095 if (this_is_output_file
)
4096 outfiles
[input_file_number
] = string
;
4102 /* Parse the WRAPPER string which is a comma separated list of the command line
4103 and insert them into the beginning of argbuf. */
4106 insert_wrapper (const char *wrapper
)
4110 char *buf
= xstrdup (wrapper
);
4119 while ((p
= strchr (p
, ',')) != NULL
);
4121 if (argbuf_index
+ n
>= argbuf_length
)
4123 argbuf_length
= argbuf_length
* 2;
4124 while (argbuf_length
< argbuf_index
+ n
)
4126 argbuf
= XRESIZEVEC (const char *, argbuf
, argbuf_length
);
4128 for (i
= argbuf_index
- 1; i
>= 0; i
--)
4129 argbuf
[i
+ n
] = argbuf
[i
];
4142 while ((p
= strchr (p
, ',')) != NULL
);
4143 gcc_assert (i
== n
);
4147 /* Process the spec SPEC and run the commands specified therein.
4148 Returns 0 if the spec is successfully processed; -1 if failed. */
4151 do_spec (const char *spec
)
4155 value
= do_spec_2 (spec
);
4157 /* Force out any unfinished command.
4158 If -pipe, this forces out the last command if it ended in `|'. */
4161 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4164 set_collect_gcc_options ();
4166 if (argbuf_index
> 0)
4174 do_spec_2 (const char *spec
)
4180 delete_this_arg
= 0;
4181 this_is_output_file
= 0;
4182 this_is_library_file
= 0;
4183 this_is_linker_script
= 0;
4184 input_from_pipe
= 0;
4185 suffix_subst
= NULL
;
4187 result
= do_spec_1 (spec
, 0, NULL
);
4195 /* Process the given spec string and add any new options to the end
4196 of the switches/n_switches array. */
4199 do_option_spec (const char *name
, const char *spec
)
4201 unsigned int i
, value_count
, value_len
;
4202 const char *p
, *q
, *value
;
4203 char *tmp_spec
, *tmp_spec_p
;
4205 if (configure_default_options
[0].name
== NULL
)
4208 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4209 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4211 if (i
== ARRAY_SIZE (configure_default_options
))
4214 value
= configure_default_options
[i
].value
;
4215 value_len
= strlen (value
);
4217 /* Compute the size of the final spec. */
4220 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4226 /* Replace each %(VALUE) by the specified value. */
4227 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4228 + value_count
* (value_len
- strlen ("%(VALUE)")));
4229 tmp_spec_p
= tmp_spec
;
4231 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4233 memcpy (tmp_spec_p
, q
, p
- q
);
4234 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4235 memcpy (tmp_spec_p
, value
, value_len
);
4236 tmp_spec_p
+= value_len
;
4237 q
= p
+ strlen ("%(VALUE)");
4239 strcpy (tmp_spec_p
, q
);
4241 do_self_spec (tmp_spec
);
4244 /* Process the given spec string and add any new options to the end
4245 of the switches/n_switches array. */
4248 do_self_spec (const char *spec
)
4253 do_spec_1 (" ", 0, NULL
);
4255 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
4256 do_self_specs adds the replacements to switches array, so it shouldn't
4257 be processed afterwards. */
4258 for (i
= 0; i
< n_switches
; i
++)
4259 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
4260 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
4262 if (argbuf_index
> 0)
4264 switches
= XRESIZEVEC (struct switchstr
, switches
,
4265 n_switches
+ argbuf_index
+ 1);
4267 for (i
= 0; i
< argbuf_index
; i
++)
4269 struct switchstr
*sw
;
4270 const char *p
= argbuf
[i
];
4273 /* Each switch should start with '-'. */
4275 fatal_error ("switch %qs does not start with %<-%>", argbuf
[i
]);
4280 sw
= &switches
[n_switches
++];
4286 /* Deal with option arguments in separate argv elements. */
4287 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4288 || WORD_SWITCH_TAKES_ARG (p
))
4291 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4295 /* Count only the option arguments in separate argv elements. */
4296 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4298 if (i
+ n_args
>= argbuf_index
)
4299 fatal_error ("argument to %<-%s%> is missing", p
);
4301 = XNEWVEC (const char *, n_args
+ 1);
4303 sw
->args
[j
++] = argbuf
[++i
];
4304 /* Null-terminate the vector. */
4309 /* On some systems, ld cannot handle "-o" without
4310 a space. So split the option from its argument. */
4311 char *part1
= XNEWVEC (char, 2);
4316 sw
->args
= XNEWVEC (const char *, 2);
4317 sw
->args
[0] = xstrdup (p
+1);
4324 switches
[n_switches
].part1
= 0;
4328 /* Callback for processing %D and %I specs. */
4330 struct spec_path_info
{
4335 bool separate_options
;
4339 spec_path (char *path
, void *data
)
4341 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
4345 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4348 if (info
->append_len
!= 0)
4350 len
= strlen (path
);
4351 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4354 if (!is_directory (path
, true))
4357 do_spec_1 (info
->option
, 1, NULL
);
4358 if (info
->separate_options
)
4359 do_spec_1 (" ", 0, NULL
);
4361 if (info
->append_len
== 0)
4363 len
= strlen (path
);
4364 save
= path
[len
- 1];
4365 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4366 path
[len
- 1] = '\0';
4369 do_spec_1 (path
, 1, NULL
);
4370 do_spec_1 (" ", 0, NULL
);
4372 /* Must not damage the original path. */
4373 if (info
->append_len
== 0)
4374 path
[len
- 1] = save
;
4379 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
4383 create_at_file (char **argv
)
4385 char *temp_file
= make_temp_file ("");
4386 char *at_argument
= concat ("@", temp_file
, NULL
);
4387 FILE *f
= fopen (temp_file
, "w");
4391 fatal_error ("could not open temporary response file %s",
4394 status
= writeargv (argv
, f
);
4397 fatal_error ("could not write to temporary response file %s",
4400 status
= fclose (f
);
4403 fatal_error ("could not close temporary response file %s",
4406 store_arg (at_argument
, 0, 0);
4408 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
4411 /* True if we should compile INFILE. */
4414 compile_input_file_p (struct infile
*infile
)
4416 if ((!infile
->language
) || (infile
->language
[0] != '*'))
4417 if (infile
->incompiler
== input_file_compiler
)
4422 /* Process the sub-spec SPEC as a portion of a larger spec.
4423 This is like processing a whole spec except that we do
4424 not initialize at the beginning and we do not supply a
4425 newline by default at the end.
4426 INSWITCH nonzero means don't process %-sequences in SPEC;
4427 in this case, % is treated as an ordinary character.
4428 This is used while substituting switches.
4429 INSWITCH nonzero also causes SPC not to terminate an argument.
4431 Value is zero unless a line was finished
4432 and the command on that line reported an error. */
4435 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4437 const char *p
= spec
;
4443 /* If substituting a switch, treat all chars like letters.
4444 Otherwise, NL, SPC, TAB and % are special. */
4445 switch (inswitch
? 'a' : c
)
4450 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4452 /* A `|' before the newline means use a pipe here,
4453 but only if -pipe was specified.
4454 Otherwise, execute now and don't pass the `|' as an arg. */
4457 input_from_pipe
= 1;
4464 set_collect_gcc_options ();
4466 if (argbuf_index
> 0)
4472 /* Reinitialize for a new command, and for a new argument. */
4475 delete_this_arg
= 0;
4476 this_is_output_file
= 0;
4477 this_is_library_file
= 0;
4478 this_is_linker_script
= 0;
4479 input_from_pipe
= 0;
4486 obstack_1grow (&obstack
, c
);
4494 /* Reinitialize for a new argument. */
4495 delete_this_arg
= 0;
4496 this_is_output_file
= 0;
4497 this_is_library_file
= 0;
4498 this_is_linker_script
= 0;
4505 fatal_error ("spec %qs invalid", spec
);
4508 if (save_temps_length
)
4509 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4511 obstack_grow (&obstack
, input_basename
, basename_length
);
4512 if (compare_debug
< 0)
4513 obstack_grow (&obstack
, ".gk", 3);
4518 if (save_temps_length
)
4519 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4521 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4522 if (compare_debug
< 0)
4523 obstack_grow (&obstack
, ".gk", 3);
4528 delete_this_arg
= 2;
4531 /* Dump out the directories specified with LIBRARY_PATH,
4532 followed by the absolute directories
4533 that we search for startfiles. */
4536 struct spec_path_info info
;
4539 info
.append_len
= 0;
4540 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4541 /* Used on systems which record the specified -L dirs
4542 and use them to search for dynamic linking.
4543 Relative directories always come from -B,
4544 and it is better not to use them for searching
4545 at run time. In particular, stage1 loses. */
4546 info
.omit_relative
= true;
4548 info
.omit_relative
= false;
4550 info
.separate_options
= false;
4552 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
4557 /* %efoo means report an error with `foo' as error message
4558 and don't execute any more commands for this file. */
4562 while (*p
!= 0 && *p
!= '\n')
4564 buf
= (char *) alloca (p
- q
+ 1);
4565 strncpy (buf
, q
, p
- q
);
4567 error ("%s", _(buf
));
4572 /* %nfoo means report a notice with `foo' on stderr. */
4576 while (*p
!= 0 && *p
!= '\n')
4578 buf
= (char *) alloca (p
- q
+ 1);
4579 strncpy (buf
, q
, p
- q
);
4581 inform (0, "%s", _(buf
));
4591 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4592 defined, and it is not a directory, and it is
4593 writable, use it. Otherwise, treat this like any
4594 other temporary file. */
4596 if ((!save_temps_flag
)
4597 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4598 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4600 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4601 strlen (HOST_BIT_BUCKET
));
4602 delete_this_arg
= 0;
4607 goto create_temp_file
;
4611 obstack_1grow (&obstack
, '-');
4612 delete_this_arg
= 0;
4615 /* consume suffix */
4616 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4618 if (p
[0] == '%' && p
[1] == 'O')
4623 goto create_temp_file
;
4627 /* consume suffix */
4628 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4630 if (p
[0] == '%' && p
[1] == 'O')
4635 goto create_temp_file
;
4641 struct temp_name
*t
;
4643 const char *suffix
= p
;
4644 char *saved_suffix
= NULL
;
4646 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4648 suffix_length
= p
- suffix
;
4649 if (p
[0] == '%' && p
[1] == 'O')
4652 /* We don't support extra suffix characters after %O. */
4653 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
4654 fatal_error ("spec %qs has invalid %<%%0%c%>", spec
, *p
);
4655 if (suffix_length
== 0)
4656 suffix
= TARGET_OBJECT_SUFFIX
;
4660 = XNEWVEC (char, suffix_length
4661 + strlen (TARGET_OBJECT_SUFFIX
));
4662 strncpy (saved_suffix
, suffix
, suffix_length
);
4663 strcpy (saved_suffix
+ suffix_length
,
4664 TARGET_OBJECT_SUFFIX
);
4666 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4669 if (compare_debug
< 0)
4671 suffix
= concat (".gk", suffix
, NULL
);
4675 /* If -save-temps=obj and -o were specified, use that for the
4677 if (save_temps_length
)
4680 temp_filename_length
4681 = save_temps_length
+ suffix_length
+ 1;
4682 tmp
= (char *) alloca (temp_filename_length
);
4683 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
4684 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
4685 tmp
[save_temps_length
+ suffix_length
] = '\0';
4686 temp_filename
= save_string (tmp
,
4687 temp_filename_length
+ 1);
4688 obstack_grow (&obstack
, temp_filename
,
4689 temp_filename_length
);
4691 delete_this_arg
= 0;
4695 /* If the gcc_input_filename has the same suffix specified
4696 for the %g, %u, or %U, and -save-temps is specified,
4697 we could end up using that file as an intermediate
4698 thus clobbering the user's source file (.e.g.,
4699 gcc -save-temps foo.s would clobber foo.s with the
4700 output of cpp0). So check for this condition and
4701 generate a temp file as the intermediate. */
4703 if (save_temps_flag
)
4706 temp_filename_length
= basename_length
+ suffix_length
+ 1;
4707 tmp
= (char *) alloca (temp_filename_length
);
4708 memcpy (tmp
, input_basename
, basename_length
);
4709 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
4710 tmp
[basename_length
+ suffix_length
] = '\0';
4711 temp_filename
= tmp
;
4713 if (strcmp (temp_filename
, gcc_input_filename
) != 0)
4715 #ifndef HOST_LACKS_INODE_NUMBERS
4716 struct stat st_temp
;
4718 /* Note, set_input() resets input_stat_set to 0. */
4719 if (input_stat_set
== 0)
4721 input_stat_set
= stat (gcc_input_filename
,
4723 if (input_stat_set
>= 0)
4727 /* If we have the stat for the gcc_input_filename
4728 and we can do the stat for the temp_filename
4729 then the they could still refer to the same
4730 file if st_dev/st_ino's are the same. */
4731 if (input_stat_set
!= 1
4732 || stat (temp_filename
, &st_temp
) < 0
4733 || input_stat
.st_dev
!= st_temp
.st_dev
4734 || input_stat
.st_ino
!= st_temp
.st_ino
)
4736 /* Just compare canonical pathnames. */
4737 char* input_realname
= lrealpath (gcc_input_filename
);
4738 char* temp_realname
= lrealpath (temp_filename
);
4739 bool files_differ
= strcmp (input_realname
, temp_realname
);
4740 free (input_realname
);
4741 free (temp_realname
);
4745 temp_filename
= save_string (temp_filename
,
4746 temp_filename_length
+ 1);
4747 obstack_grow (&obstack
, temp_filename
,
4748 temp_filename_length
);
4750 delete_this_arg
= 0;
4756 /* See if we already have an association of %g/%u/%U and
4758 for (t
= temp_names
; t
; t
= t
->next
)
4759 if (t
->length
== suffix_length
4760 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4761 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4764 /* Make a new association if needed. %u and %j
4766 if (t
== 0 || c
== 'u' || c
== 'j')
4770 t
= XNEW (struct temp_name
);
4771 t
->next
= temp_names
;
4774 t
->length
= suffix_length
;
4777 t
->suffix
= saved_suffix
;
4778 saved_suffix
= NULL
;
4781 t
->suffix
= save_string (suffix
, suffix_length
);
4782 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4783 temp_filename
= make_temp_file (t
->suffix
);
4784 temp_filename_length
= strlen (temp_filename
);
4785 t
->filename
= temp_filename
;
4786 t
->filename_length
= temp_filename_length
;
4790 free (saved_suffix
);
4792 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4793 delete_this_arg
= 1;
4801 if (at_file_supplied
)
4803 /* We are going to expand `%i' to `@FILE', where FILE
4804 is a newly-created temporary filename. The filenames
4805 that would usually be expanded in place of %o will be
4806 written to the temporary file. */
4811 for (i
= 0; i
< n_infiles
; i
++)
4812 if (compile_input_file_p (&infiles
[i
]))
4815 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
4817 /* Copy the strings over. */
4818 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
4819 if (compile_input_file_p (&infiles
[i
]))
4821 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
4822 infiles
[i
].compiled
= true;
4827 create_at_file (argv
);
4830 for (i
= 0; (int) i
< n_infiles
; i
++)
4831 if (compile_input_file_p (&infiles
[i
]))
4833 store_arg (infiles
[i
].name
, 0, 0);
4834 infiles
[i
].compiled
= true;
4839 obstack_grow (&obstack
, gcc_input_filename
,
4840 input_filename_length
);
4847 struct spec_path_info info
;
4851 do_spec_1 ("-imultilib", 1, NULL
);
4852 /* Make this a separate argument. */
4853 do_spec_1 (" ", 0, NULL
);
4854 do_spec_1 (multilib_dir
, 1, NULL
);
4855 do_spec_1 (" ", 0, NULL
);
4858 if (gcc_exec_prefix
)
4860 do_spec_1 ("-iprefix", 1, NULL
);
4861 /* Make this a separate argument. */
4862 do_spec_1 (" ", 0, NULL
);
4863 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4864 do_spec_1 (" ", 0, NULL
);
4867 if (target_system_root_changed
||
4868 (target_system_root
&& target_sysroot_hdrs_suffix
))
4870 do_spec_1 ("-isysroot", 1, NULL
);
4871 /* Make this a separate argument. */
4872 do_spec_1 (" ", 0, NULL
);
4873 do_spec_1 (target_system_root
, 1, NULL
);
4874 if (target_sysroot_hdrs_suffix
)
4875 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4876 do_spec_1 (" ", 0, NULL
);
4879 info
.option
= "-isystem";
4880 info
.append
= "include";
4881 info
.append_len
= strlen (info
.append
);
4882 info
.omit_relative
= false;
4883 info
.separate_options
= true;
4885 for_each_path (&include_prefixes
, false, info
.append_len
,
4888 info
.append
= "include-fixed";
4889 if (*sysroot_hdrs_suffix_spec
)
4890 info
.append
= concat (info
.append
, dir_separator_str
,
4891 multilib_dir
, NULL
);
4892 info
.append_len
= strlen (info
.append
);
4893 for_each_path (&include_prefixes
, false, info
.append_len
,
4900 int max
= n_infiles
;
4901 max
+= lang_specific_extra_outfiles
;
4903 if (HAVE_GNU_LD
&& at_file_supplied
)
4905 /* We are going to expand `%o' to `@FILE', where FILE
4906 is a newly-created temporary filename. The filenames
4907 that would usually be expanded in place of %o will be
4908 written to the temporary file. */
4913 /* Convert OUTFILES into a form suitable for writeargv. */
4915 /* Determine how many are non-NULL. */
4916 for (n_files
= 0, i
= 0; i
< max
; i
++)
4917 n_files
+= outfiles
[i
] != NULL
;
4919 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
4921 /* Copy the strings over. */
4922 for (i
= 0, j
= 0; i
< max
; i
++)
4925 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
4930 create_at_file (argv
);
4933 for (i
= 0; i
< max
; i
++)
4935 store_arg (outfiles
[i
], 0, 0);
4940 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4945 this_is_library_file
= 1;
4949 this_is_linker_script
= 1;
4953 outfiles
[input_file_number
] = NULL
;
4957 this_is_output_file
= 1;
4962 int cur_index
= argbuf_index
;
4963 /* Handle the {...} following the %W. */
4965 fatal_error ("spec %qs has invalid %<%%W%c%>", spec
, *p
);
4966 p
= handle_braces (p
+ 1);
4970 /* If any args were output, mark the last one for deletion
4972 if (argbuf_index
!= cur_index
)
4973 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4977 /* %x{OPTION} records OPTION for %X to output. */
4983 /* Skip past the option value and make a copy. */
4985 fatal_error ("spec %qs has invalid %<%%x%c%>", spec
, *p
);
4988 string
= save_string (p1
+ 1, p
- p1
- 2);
4990 /* See if we already recorded this option. */
4991 for (i
= 0; i
< n_linker_options
; i
++)
4992 if (! strcmp (string
, linker_options
[i
]))
4998 /* This option is new; add it. */
4999 add_linker_option (string
, strlen (string
));
5003 /* Dump out the options accumulated previously using %x. */
5005 for (i
= 0; i
< n_linker_options
; i
++)
5007 do_spec_1 (linker_options
[i
], 1, NULL
);
5008 /* Make each accumulated option a separate argument. */
5009 do_spec_1 (" ", 0, NULL
);
5013 /* Dump out the options accumulated previously using -Wa,. */
5015 for (i
= 0; i
< n_assembler_options
; i
++)
5017 do_spec_1 (assembler_options
[i
], 1, NULL
);
5018 /* Make each accumulated option a separate argument. */
5019 do_spec_1 (" ", 0, NULL
);
5023 /* Dump out the options accumulated previously using -Wp,. */
5025 for (i
= 0; i
< n_preprocessor_options
; i
++)
5027 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
5028 /* Make each accumulated option a separate argument. */
5029 do_spec_1 (" ", 0, NULL
);
5033 /* Here are digits and numbers that just process
5034 a certain constant string as a spec. */
5037 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5043 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5049 value
= do_spec_1 (asm_spec
, 0, NULL
);
5055 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5062 const char *const spec
5063 = (input_file_compiler
->cpp_spec
5064 ? input_file_compiler
->cpp_spec
5066 value
= do_spec_1 (spec
, 0, NULL
);
5073 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5079 value
= do_spec_1 (link_spec
, 0, NULL
);
5085 value
= do_spec_1 (lib_spec
, 0, NULL
);
5091 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5097 /* We assume there is a directory
5098 separator at the end of this string. */
5099 if (target_system_root
)
5101 obstack_grow (&obstack
, target_system_root
,
5102 strlen (target_system_root
));
5103 if (target_sysroot_suffix
)
5104 obstack_grow (&obstack
, target_sysroot_suffix
,
5105 strlen (target_sysroot_suffix
));
5110 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5115 /* Here we define characters other than letters and digits. */
5118 p
= handle_braces (p
);
5124 p
= handle_spec_function (p
);
5130 obstack_1grow (&obstack
, '%');
5137 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5139 suffix_subst
= save_string (p
- 1, len
+ 1);
5144 /* Henceforth ignore the option(s) matching the pattern
5149 int have_wildcard
= 0;
5152 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5155 if (p
[len
-1] == '*')
5158 for (i
= 0; i
< n_switches
; i
++)
5159 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5160 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5162 switches
[i
].live_cond
|= SWITCH_IGNORE
;
5163 switches
[i
].validated
= 1;
5171 if (soft_matched_part
)
5173 do_spec_1 (soft_matched_part
, 1, NULL
);
5174 do_spec_1 (" ", 0, NULL
);
5177 /* Catch the case where a spec string contains something like
5178 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5179 hand side of the :. */
5180 error ("spec failure: %<%%*%> has not been initialized by pattern match");
5183 /* Process a string found as the value of a spec given by name.
5184 This feature allows individual machine descriptions
5185 to add and use their own specs.
5186 %[...] modifies -D options the way %P does;
5187 %(...) uses the spec unmodified. */
5189 warning (0, "use of obsolete %%[ operator in specs");
5192 const char *name
= p
;
5193 struct spec_list
*sl
;
5196 /* The string after the S/P is the name of a spec that is to be
5198 while (*p
&& *p
!= ')' && *p
!= ']')
5201 /* See if it's in the list. */
5202 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5203 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5205 name
= *(sl
->ptr_spec
);
5207 fnotice (stderr
, "Processing spec %c%s%c, which is '%s'\n",
5208 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5217 value
= do_spec_1 (name
, 0, NULL
);
5223 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
5225 const char *y
= name
;
5228 /* Copy all of NAME into BUF, but put __ after
5229 every -D and at the end of each arg. */
5232 if (! strncmp (y
, "-D", 2))
5243 && (*y
== ' ' || *y
== '\t' || *y
== '='
5244 || *y
== '}' || *y
== 0))
5257 value
= do_spec_1 (buf
, 0, NULL
);
5263 /* Discard the closing paren or bracket. */
5270 error ("spec failure: unrecognized spec option %qc", c
);
5276 /* Backslash: treat next character as ordinary. */
5281 /* Ordinary character: put it into the current argument. */
5282 obstack_1grow (&obstack
, c
);
5286 /* End of string. If we are processing a spec function, we need to
5287 end any pending argument. */
5288 if (processing_spec_function
)
5294 /* Look up a spec function. */
5296 static const struct spec_function
*
5297 lookup_spec_function (const char *name
)
5299 const struct spec_function
*sf
;
5301 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5302 if (strcmp (sf
->name
, name
) == 0)
5308 /* Evaluate a spec function. */
5311 eval_spec_function (const char *func
, const char *args
)
5313 const struct spec_function
*sf
;
5314 const char *funcval
;
5316 /* Saved spec processing context. */
5317 int save_argbuf_index
;
5318 int save_argbuf_length
;
5319 const char **save_argbuf
;
5322 int save_delete_this_arg
;
5323 int save_this_is_output_file
;
5324 int save_this_is_library_file
;
5325 int save_input_from_pipe
;
5326 int save_this_is_linker_script
;
5327 const char *save_suffix_subst
;
5330 sf
= lookup_spec_function (func
);
5332 fatal_error ("unknown spec function %qs", func
);
5334 /* Push the spec processing context. */
5335 save_argbuf_index
= argbuf_index
;
5336 save_argbuf_length
= argbuf_length
;
5337 save_argbuf
= argbuf
;
5339 save_arg_going
= arg_going
;
5340 save_delete_this_arg
= delete_this_arg
;
5341 save_this_is_output_file
= this_is_output_file
;
5342 save_this_is_library_file
= this_is_library_file
;
5343 save_this_is_linker_script
= this_is_linker_script
;
5344 save_input_from_pipe
= input_from_pipe
;
5345 save_suffix_subst
= suffix_subst
;
5347 /* Create a new spec processing context, and build the function
5351 if (do_spec_2 (args
) < 0)
5352 fatal_error ("error in args to spec function %qs", func
);
5354 /* argbuf_index is an index for the next argument to be inserted, and
5355 so contains the count of the args already inserted. */
5357 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5359 /* Pop the spec processing context. */
5360 argbuf_index
= save_argbuf_index
;
5361 argbuf_length
= save_argbuf_length
;
5363 argbuf
= save_argbuf
;
5365 arg_going
= save_arg_going
;
5366 delete_this_arg
= save_delete_this_arg
;
5367 this_is_output_file
= save_this_is_output_file
;
5368 this_is_library_file
= save_this_is_library_file
;
5369 this_is_linker_script
= save_this_is_linker_script
;
5370 input_from_pipe
= save_input_from_pipe
;
5371 suffix_subst
= save_suffix_subst
;
5376 /* Handle a spec function call of the form:
5380 ARGS is processed as a spec in a separate context and split into an
5381 argument vector in the normal fashion. The function returns a string
5382 containing a spec which we then process in the caller's context, or
5383 NULL if no processing is required. */
5386 handle_spec_function (const char *p
)
5389 const char *endp
, *funcval
;
5392 processing_spec_function
++;
5394 /* Get the function name. */
5395 for (endp
= p
; *endp
!= '\0'; endp
++)
5397 if (*endp
== '(') /* ) */
5399 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5400 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5401 fatal_error ("malformed spec function name");
5403 if (*endp
!= '(') /* ) */
5404 fatal_error ("no arguments for spec function");
5405 func
= save_string (p
, endp
- p
);
5408 /* Get the arguments. */
5409 for (count
= 0; *endp
!= '\0'; endp
++)
5418 else if (*endp
== '(') /* ) */
5423 fatal_error ("malformed spec function arguments");
5424 args
= save_string (p
, endp
- p
);
5427 /* p now points to just past the end of the spec function expression. */
5429 funcval
= eval_spec_function (func
, args
);
5430 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5436 processing_spec_function
--;
5441 /* Inline subroutine of handle_braces. Returns true if the current
5442 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5444 input_suffix_matches (const char *atom
, const char *end_atom
)
5446 return (input_suffix
5447 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5448 && input_suffix
[end_atom
- atom
] == '\0');
5451 /* Subroutine of handle_braces. Returns true if the current
5452 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
5454 input_spec_matches (const char *atom
, const char *end_atom
)
5456 return (input_file_compiler
5457 && input_file_compiler
->suffix
5458 && input_file_compiler
->suffix
[0] != '\0'
5459 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
5461 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
5464 /* Subroutine of handle_braces. Returns true if a switch
5465 matching the atom bracketed by ATOM and END_ATOM appeared on the
5468 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5471 int len
= end_atom
- atom
;
5472 int plen
= starred
? len
: -1;
5474 for (i
= 0; i
< n_switches
; i
++)
5475 if (!strncmp (switches
[i
].part1
, atom
, len
)
5476 && (starred
|| switches
[i
].part1
[len
] == '\0')
5477 && check_live_switch (i
, plen
))
5483 /* Inline subroutine of handle_braces. Mark all of the switches which
5484 match ATOM (extends to END_ATOM; STARRED indicates whether there
5485 was a star after the atom) for later processing. */
5487 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5490 int len
= end_atom
- atom
;
5491 int plen
= starred
? len
: -1;
5493 for (i
= 0; i
< n_switches
; i
++)
5494 if (!strncmp (switches
[i
].part1
, atom
, len
)
5495 && (starred
|| switches
[i
].part1
[len
] == '\0')
5496 && check_live_switch (i
, plen
))
5497 switches
[i
].ordering
= 1;
5500 /* Inline subroutine of handle_braces. Process all the currently
5501 marked switches through give_switch, and clear the marks. */
5503 process_marked_switches (void)
5507 for (i
= 0; i
< n_switches
; i
++)
5508 if (switches
[i
].ordering
== 1)
5510 switches
[i
].ordering
= 0;
5515 /* Handle a %{ ... } construct. P points just inside the leading {.
5516 Returns a pointer one past the end of the brace block, or 0
5517 if we call do_spec_1 and that returns -1. */
5520 handle_braces (const char *p
)
5522 const char *atom
, *end_atom
;
5523 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5524 const char *orig
= p
;
5532 bool a_must_be_last
= false;
5533 bool ordered_set
= false;
5534 bool disjunct_set
= false;
5535 bool disj_matched
= false;
5536 bool disj_starred
= true;
5537 bool n_way_choice
= false;
5538 bool n_way_matched
= false;
5540 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5547 /* Scan one "atom" (S in the description above of %{}, possibly
5548 with '!', '.', '@', ',', or '*' modifiers). */
5550 a_is_suffix
= false;
5551 a_is_starred
= false;
5552 a_is_negated
= false;
5553 a_is_spectype
= false;
5557 p
++, a_is_negated
= true;
5561 p
++, a_is_suffix
= true;
5563 p
++, a_is_spectype
= true;
5566 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5567 || *p
== ',' || *p
== '.' || *p
== '@')
5572 p
++, a_is_starred
= 1;
5578 /* Substitute the switch(es) indicated by the current atom. */
5580 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5581 || a_is_spectype
|| atom
== end_atom
)
5584 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5587 process_marked_switches ();
5591 /* Substitute some text if the current atom appears as a switch
5593 disjunct_set
= true;
5597 if (atom
== end_atom
)
5599 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5600 || a_is_negated
|| a_is_suffix
|| a_is_spectype
5604 /* An empty term may appear as the last choice of an
5605 N-way choice set; it means "otherwise". */
5606 a_must_be_last
= true;
5607 disj_matched
= !n_way_matched
;
5608 disj_starred
= false;
5612 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
5616 disj_starred
= false;
5618 /* Don't bother testing this atom if we already have a
5620 if (!disj_matched
&& !n_way_matched
)
5623 a_matched
= input_suffix_matches (atom
, end_atom
);
5624 else if (a_is_spectype
)
5625 a_matched
= input_spec_matches (atom
, end_atom
);
5627 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5629 if (a_matched
!= a_is_negated
)
5631 disj_matched
= true;
5633 d_end_atom
= end_atom
;
5640 /* Found the body, that is, the text to substitute if the
5641 current disjunction matches. */
5642 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5643 disj_matched
&& !n_way_matched
);
5647 /* If we have an N-way choice, reset state for the next
5651 n_way_choice
= true;
5652 n_way_matched
|= disj_matched
;
5653 disj_matched
= false;
5654 disj_starred
= true;
5655 d_atom
= d_end_atom
= NULL
;
5664 while (*p
++ != '}');
5669 fatal_error ("braced spec %qs is invalid at %qc", orig
, *p
);
5674 /* Subroutine of handle_braces. Scan and process a brace substitution body
5675 (X in the description of %{} syntax). P points one past the colon;
5676 ATOM and END_ATOM bracket the first atom which was found to be true
5677 (present) in the current disjunction; STARRED indicates whether all
5678 the atoms in the current disjunction were starred (for syntax validation);
5679 MATCHED indicates whether the disjunction matched or not, and therefore
5680 whether or not the body is to be processed through do_spec_1 or just
5681 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5685 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5686 int starred
, int matched
)
5688 const char *body
, *end_body
;
5689 unsigned int nesting_level
;
5690 bool have_subst
= false;
5692 /* Locate the closing } or ;, honoring nested braces.
5693 Trim trailing whitespace. */
5702 if (!--nesting_level
)
5705 else if (*p
== ';' && nesting_level
== 1)
5707 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5709 else if (*p
== '\0')
5715 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5718 if (have_subst
&& !starred
)
5723 /* Copy the substitution body to permanent storage and execute it.
5724 If have_subst is false, this is a simple matter of running the
5725 body through do_spec_1... */
5726 char *string
= save_string (body
, end_body
- body
);
5729 if (do_spec_1 (string
, 0, NULL
) < 0)
5734 /* ... but if have_subst is true, we have to process the
5735 body once for each matching switch, with %* set to the
5736 variant part of the switch. */
5737 unsigned int hard_match_len
= end_atom
- atom
;
5740 for (i
= 0; i
< n_switches
; i
++)
5741 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5742 && check_live_switch (i
, hard_match_len
))
5744 if (do_spec_1 (string
, 0,
5745 &switches
[i
].part1
[hard_match_len
]) < 0)
5747 /* Pass any arguments this switch has. */
5749 suffix_subst
= NULL
;
5757 fatal_error ("braced spec body %qs is invalid", body
);
5760 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5761 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5762 spec, or -1 if either exact match or %* is used.
5764 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5765 whose value does not begin with "no-" is obsoleted by the same value
5766 with the "no-", similarly for a switch with the "no-" prefix. */
5769 check_live_switch (int switchnum
, int prefix_length
)
5771 const char *name
= switches
[switchnum
].part1
;
5774 /* If we already processed this switch and determined if it was
5775 live or not, return our past determination. */
5776 if (switches
[switchnum
].live_cond
!= 0)
5777 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
5778 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
5779 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
5782 /* In the common case of {<at-most-one-letter>*}, a negating
5783 switch would always match, so ignore that case. We will just
5784 send the conflicting switches to the compiler phase. */
5785 if (prefix_length
>= 0 && prefix_length
<= 1)
5788 /* Now search for duplicate in a manner that depends on the name. */
5792 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5793 if (switches
[i
].part1
[0] == 'O')
5795 switches
[switchnum
].validated
= 1;
5796 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5801 case 'W': case 'f': case 'm':
5802 if (! strncmp (name
+ 1, "no-", 3))
5804 /* We have Xno-YYY, search for XYYY. */
5805 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5806 if (switches
[i
].part1
[0] == name
[0]
5807 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5809 switches
[switchnum
].validated
= 1;
5810 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5816 /* We have XYYY, search for Xno-YYY. */
5817 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5818 if (switches
[i
].part1
[0] == name
[0]
5819 && switches
[i
].part1
[1] == 'n'
5820 && switches
[i
].part1
[2] == 'o'
5821 && switches
[i
].part1
[3] == '-'
5822 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5824 switches
[switchnum
].validated
= 1;
5825 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5832 /* Otherwise the switch is live. */
5833 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
5837 /* Pass a switch to the current accumulating command
5838 in the same form that we received it.
5839 SWITCHNUM identifies the switch; it is an index into
5840 the vector of switches gcc received, which is `switches'.
5841 This cannot fail since it never finishes a command line.
5843 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5846 give_switch (int switchnum
, int omit_first_word
)
5848 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
5851 if (!omit_first_word
)
5853 do_spec_1 ("-", 0, NULL
);
5854 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5857 if (switches
[switchnum
].args
!= 0)
5860 for (p
= switches
[switchnum
].args
; *p
; p
++)
5862 const char *arg
= *p
;
5864 do_spec_1 (" ", 0, NULL
);
5867 unsigned length
= strlen (arg
);
5870 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5871 if (arg
[length
] == '.')
5873 (CONST_CAST(char *, arg
))[length
] = 0;
5877 do_spec_1 (arg
, 1, NULL
);
5879 (CONST_CAST(char *, arg
))[length
] = '.';
5880 do_spec_1 (suffix_subst
, 1, NULL
);
5883 do_spec_1 (arg
, 1, NULL
);
5887 do_spec_1 (" ", 0, NULL
);
5888 switches
[switchnum
].validated
= 1;
5891 /* Search for a file named NAME trying various prefixes including the
5892 user's -B prefix and some standard ones.
5893 Return the absolute file name found. If nothing is found, return NAME. */
5896 find_file (const char *name
)
5898 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
5899 return newname
? newname
: name
;
5902 /* Determine whether a directory exists. If LINKER, return 0 for
5903 certain fixed names not needed by the linker. */
5906 is_directory (const char *path1
, bool linker
)
5913 /* Ensure the string ends with "/.". The resulting path will be a
5914 directory even if the given path is a symbolic link. */
5915 len1
= strlen (path1
);
5916 path
= (char *) alloca (3 + len1
);
5917 memcpy (path
, path1
, len1
);
5919 if (!IS_DIR_SEPARATOR (cp
[-1]))
5920 *cp
++ = DIR_SEPARATOR
;
5924 /* Exclude directories that the linker is known to search. */
5926 && IS_DIR_SEPARATOR (path
[0])
5928 && strncmp (path
+ 1, "lib", 3) == 0)
5930 && strncmp (path
+ 1, "usr", 3) == 0
5931 && IS_DIR_SEPARATOR (path
[4])
5932 && strncmp (path
+ 5, "lib", 3) == 0)))
5935 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5938 /* Set up the various global variables to indicate that we're processing
5939 the input file named FILENAME. */
5942 set_input (const char *filename
)
5946 gcc_input_filename
= filename
;
5947 input_filename_length
= strlen (gcc_input_filename
);
5948 input_basename
= lbasename (gcc_input_filename
);
5950 /* Find a suffix starting with the last period,
5951 and set basename_length to exclude that suffix. */
5952 basename_length
= strlen (input_basename
);
5953 suffixed_basename_length
= basename_length
;
5954 p
= input_basename
+ basename_length
;
5955 while (p
!= input_basename
&& *p
!= '.')
5957 if (*p
== '.' && p
!= input_basename
)
5959 basename_length
= p
- input_basename
;
5960 input_suffix
= p
+ 1;
5965 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
5966 we will need to do a stat on the gcc_input_filename. The
5967 INPUT_STAT_SET signals that the stat is needed. */
5971 /* On fatal signals, delete all the temporary files. */
5974 fatal_signal (int signum
)
5976 signal (signum
, SIG_DFL
);
5977 delete_failure_queue ();
5978 delete_temp_files ();
5979 /* Get the same signal again, this time not handled,
5980 so its normal effect occurs. */
5981 kill (getpid (), signum
);
5984 /* Compare the contents of the two files named CMPFILE[0] and
5985 CMPFILE[1]. Return zero if they're identical, nonzero
5989 compare_files (char *cmpfile
[])
5992 FILE *temp
[2] = { NULL
, NULL
};
5998 void *map
[2] = { NULL
, NULL
};
6000 for (i
= 0; i
< 2; i
++)
6004 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
6006 error ("%s: could not determine length of compare-debug file %s",
6007 gcc_input_filename
, cmpfile
[i
]);
6012 length
[i
] = st
.st_size
;
6015 if (!ret
&& length
[0] != length
[1])
6017 error ("%s: -fcompare-debug failure (length)", gcc_input_filename
);
6022 for (i
= 0; i
< 2; i
++)
6024 int fd
= open (cmpfile
[i
], O_RDONLY
);
6027 error ("%s: could not open compare-debug file %s",
6028 gcc_input_filename
, cmpfile
[i
]);
6033 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
6036 if (map
[i
] == (void *) MAP_FAILED
)
6045 if (memcmp (map
[0], map
[1], length
[0]) != 0)
6047 error ("%s: -fcompare-debug failure", gcc_input_filename
);
6052 for (i
= 0; i
< 2; i
++)
6054 munmap ((caddr_t
) map
[i
], length
[i
]);
6063 for (i
= 0; i
< 2; i
++)
6065 temp
[i
] = fopen (cmpfile
[i
], "r");
6068 error ("%s: could not open compare-debug file %s",
6069 gcc_input_filename
, cmpfile
[i
]);
6075 if (!ret
&& temp
[0] && temp
[1])
6079 c0
= fgetc (temp
[0]);
6080 c1
= fgetc (temp
[1]);
6084 error ("%s: -fcompare-debug failure",
6085 gcc_input_filename
);
6094 for (i
= 1; i
>= 0; i
--)
6103 extern int main (int, char **);
6106 main (int argc
, char **argv
)
6110 int linker_was_run
= 0;
6111 int lang_n_infiles
= 0;
6112 int num_linker_inputs
= 0;
6113 char *explicit_link_files
;
6116 struct user_specs
*uptr
;
6117 char **old_argv
= argv
;
6118 struct cl_decoded_option
*decoded_options
;
6119 unsigned int decoded_options_count
;
6121 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6122 on ?: in file-scope variable initializations. */
6123 asm_debug
= ASM_DEBUG_SPEC
;
6125 p
= argv
[0] + strlen (argv
[0]);
6126 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6130 xmalloc_set_program_name (progname
);
6132 expandargv (&argc
, &argv
);
6134 /* Determine if any expansions were made. */
6135 if (argv
!= old_argv
)
6136 at_file_supplied
= true;
6138 decode_cmdline_options_to_array (argc
, CONST_CAST2 (const char **, char **,
6141 &decoded_options
, &decoded_options_count
);
6143 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6144 /* Perform host dependent initialization when needed. */
6145 GCC_DRIVER_HOST_INITIALIZATION
;
6148 /* Unlock the stdio streams. */
6149 unlock_std_streams ();
6151 gcc_init_libintl ();
6153 diagnostic_initialize (global_dc
, 0);
6154 if (atexit (delete_temp_files
) != 0)
6155 fatal_error ("atexit failed");
6157 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6158 signal (SIGINT
, fatal_signal
);
6160 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6161 signal (SIGHUP
, fatal_signal
);
6163 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6164 signal (SIGTERM
, fatal_signal
);
6166 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6167 signal (SIGPIPE
, fatal_signal
);
6170 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6171 receive the signal. A different setting is inheritable */
6172 signal (SIGCHLD
, SIG_DFL
);
6175 /* Allocate the argument vector. */
6178 obstack_init (&obstack
);
6180 /* Build multilib_select, et. al from the separate lines that make up each
6181 multilib selection. */
6183 const char *const *q
= multilib_raw
;
6186 obstack_init (&multilib_obstack
);
6187 while ((p
= *q
++) != (char *) 0)
6188 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6190 obstack_1grow (&multilib_obstack
, 0);
6191 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6193 q
= multilib_matches_raw
;
6194 while ((p
= *q
++) != (char *) 0)
6195 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6197 obstack_1grow (&multilib_obstack
, 0);
6198 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6200 q
= multilib_exclusions_raw
;
6201 while ((p
= *q
++) != (char *) 0)
6202 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6204 obstack_1grow (&multilib_obstack
, 0);
6205 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6208 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6211 obstack_1grow (&multilib_obstack
, ' ');
6212 obstack_grow (&multilib_obstack
,
6213 multilib_defaults_raw
[i
],
6214 strlen (multilib_defaults_raw
[i
]));
6218 obstack_1grow (&multilib_obstack
, 0);
6219 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6222 #ifdef INIT_ENVIRONMENT
6223 /* Set up any other necessary machine specific environment variables. */
6224 xputenv (INIT_ENVIRONMENT
);
6227 /* Make a table of what switches there are (switches, n_switches).
6228 Make a table of specified input files (infiles, n_infiles).
6229 Decode switches that are handled locally. */
6231 process_command (decoded_options_count
, decoded_options
);
6233 /* Initialize the vector of specs to just the default.
6234 This means one element containing 0s, as a terminator. */
6236 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
6237 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6238 n_compilers
= n_default_compilers
;
6240 /* Read specs from a file if there is one. */
6242 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6243 spec_version
, dir_separator_str
, NULL
);
6244 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6246 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6247 /* Read the specs file unless it is a default one. */
6248 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6249 read_specs (specs_file
, TRUE
);
6253 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6254 for any override of as, ld and libraries. */
6255 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
6256 + strlen (just_machine_suffix
) + sizeof ("specs"));
6258 strcpy (specs_file
, standard_exec_prefix
);
6259 strcat (specs_file
, just_machine_suffix
);
6260 strcat (specs_file
, "specs");
6261 if (access (specs_file
, R_OK
) == 0)
6262 read_specs (specs_file
, TRUE
);
6264 /* Process any configure-time defaults specified for the command line
6265 options, via OPTION_DEFAULT_SPECS. */
6266 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6267 do_option_spec (option_default_specs
[i
].name
,
6268 option_default_specs
[i
].spec
);
6270 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6271 of the command line. */
6273 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6274 do_self_spec (driver_self_specs
[i
]);
6278 enum save_temps save
;
6280 if (!compare_debug_second
)
6282 n_switches_debug_check
[1] = n_switches
;
6283 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
6286 do_self_spec ("%:compare-debug-self-opt()");
6287 n_switches_debug_check
[0] = n_switches
;
6288 switches_debug_check
[0] = switches
;
6290 n_switches
= n_switches_debug_check
[1];
6291 switches
= switches_debug_check
[1];
6294 /* Avoid crash when computing %j in this early. */
6295 save
= save_temps_flag
;
6296 save_temps_flag
= SAVE_TEMPS_NONE
;
6298 compare_debug
= -compare_debug
;
6299 do_self_spec ("%:compare-debug-self-opt()");
6301 save_temps_flag
= save
;
6303 if (!compare_debug_second
)
6305 n_switches_debug_check
[1] = n_switches
;
6306 switches_debug_check
[1] = switches
;
6307 compare_debug
= -compare_debug
;
6308 n_switches
= n_switches_debug_check
[0];
6309 switches
= switches_debug_check
[0];
6313 /* If not cross-compiling, look for executables in the standard
6315 if (*cross_compile
== '0')
6317 if (*md_exec_prefix
)
6319 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6320 PREFIX_PRIORITY_LAST
, 0, 0);
6324 /* Process sysroot_suffix_spec. */
6325 if (*sysroot_suffix_spec
!= 0
6326 && do_spec_2 (sysroot_suffix_spec
) == 0)
6328 if (argbuf_index
> 1)
6329 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6330 else if (argbuf_index
== 1)
6331 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6334 #ifdef HAVE_LD_SYSROOT
6335 /* Pass the --sysroot option to the linker, if it supports that. If
6336 there is a sysroot_suffix_spec, it has already been processed by
6337 this point, so target_system_root really is the system root we
6339 if (target_system_root
)
6341 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6342 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6343 set_spec ("link", XOBFINISH (&obstack
, const char *));
6347 /* Process sysroot_hdrs_suffix_spec. */
6348 if (*sysroot_hdrs_suffix_spec
!= 0
6349 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6351 if (argbuf_index
> 1)
6352 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6353 else if (argbuf_index
== 1)
6354 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6357 /* Look for startfiles in the standard places. */
6358 if (*startfile_prefix_spec
!= 0
6359 && do_spec_2 (startfile_prefix_spec
) == 0
6360 && do_spec_1 (" ", 0, NULL
) == 0)
6363 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6364 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6365 PREFIX_PRIORITY_LAST
, 0, 1);
6367 /* We should eventually get rid of all these and stick to
6368 startfile_prefix_spec exclusively. */
6369 else if (*cross_compile
== '0' || target_system_root
)
6371 if (*md_startfile_prefix
)
6372 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6373 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6375 if (*md_startfile_prefix_1
)
6376 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6377 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6379 /* If standard_startfile_prefix is relative, base it on
6380 standard_exec_prefix. This lets us move the installed tree
6381 as a unit. If GCC_EXEC_PREFIX is defined, base
6382 standard_startfile_prefix on that as well.
6384 If the prefix is relative, only search it for native compilers;
6385 otherwise we will search a directory containing host libraries. */
6386 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6387 add_sysrooted_prefix (&startfile_prefixes
,
6388 standard_startfile_prefix
, "BINUTILS",
6389 PREFIX_PRIORITY_LAST
, 0, 1);
6390 else if (*cross_compile
== '0')
6392 add_prefix (&startfile_prefixes
,
6393 concat (gcc_exec_prefix
6394 ? gcc_exec_prefix
: standard_exec_prefix
,
6396 standard_startfile_prefix
, NULL
),
6397 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6400 /* Sysrooted prefixes are relocated because target_system_root is
6401 also relocated by gcc_exec_prefix. */
6402 if (*standard_startfile_prefix_1
)
6403 add_sysrooted_prefix (&startfile_prefixes
,
6404 standard_startfile_prefix_1
, "BINUTILS",
6405 PREFIX_PRIORITY_LAST
, 0, 1);
6406 if (*standard_startfile_prefix_2
)
6407 add_sysrooted_prefix (&startfile_prefixes
,
6408 standard_startfile_prefix_2
, "BINUTILS",
6409 PREFIX_PRIORITY_LAST
, 0, 1);
6412 /* Process any user specified specs in the order given on the command
6414 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6416 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6418 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6421 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6422 if (gcc_exec_prefix
)
6423 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6424 spec_version
, dir_separator_str
, NULL
);
6426 /* Now we have the specs.
6427 Set the `valid' bits for switches that match anything in any spec. */
6429 validate_all_switches ();
6431 /* Now that we have the switches and the specs, set
6432 the subdirectory based on the options. */
6433 set_multilib_dir ();
6435 /* Set up to remember the pathname of gcc and any options
6436 needed for collect. We use argv[0] instead of progname because
6437 we need the complete pathname. */
6438 obstack_init (&collect_obstack
);
6439 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6440 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6441 xputenv (XOBFINISH (&collect_obstack
, char *));
6443 /* Set up to remember the pathname of the lto wrapper. */
6445 lto_wrapper_spec
= find_a_file (&exec_prefixes
, "lto-wrapper", X_OK
, false);
6446 if (lto_wrapper_spec
)
6448 obstack_init (&collect_obstack
);
6449 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
6450 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
6451 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
6452 strlen (lto_wrapper_spec
) + 1);
6453 xputenv (XOBFINISH (&collect_obstack
, char *));
6456 /* Warn about any switches that no pass was interested in. */
6458 for (i
= 0; (int) i
< n_switches
; i
++)
6459 if (! switches
[i
].validated
)
6460 error ("unrecognized option %<-%s%>", switches
[i
].part1
);
6462 /* Obey some of the options. */
6464 if (print_search_dirs
)
6466 printf (_("install: %s%s\n"),
6467 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
6468 gcc_exec_prefix
? "" : machine_suffix
);
6469 printf (_("programs: %s\n"),
6470 build_search_list (&exec_prefixes
, "", false, false));
6471 printf (_("libraries: %s\n"),
6472 build_search_list (&startfile_prefixes
, "", false, true));
6476 if (print_file_name
)
6478 printf ("%s\n", find_file (print_file_name
));
6482 if (print_prog_name
)
6484 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6485 printf ("%s\n", (newname
? newname
: print_prog_name
));
6489 if (print_multi_lib
)
6491 print_multilib_info ();
6495 if (print_multi_directory
)
6497 if (multilib_dir
== NULL
)
6500 printf ("%s\n", multilib_dir
);
6506 if (target_system_root
)
6508 if (target_sysroot_suffix
)
6509 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
6511 printf ("%s\n", target_system_root
);
6516 if (print_multi_os_directory
)
6518 if (multilib_os_dir
== NULL
)
6521 printf ("%s\n", multilib_os_dir
);
6525 if (print_sysroot_headers_suffix
)
6527 if (*sysroot_hdrs_suffix_spec
)
6529 printf("%s\n", (target_sysroot_hdrs_suffix
6530 ? target_sysroot_hdrs_suffix
6535 /* The error status indicates that only one set of fixed
6536 headers should be built. */
6537 fatal_error ("not configured with sysroot headers suffix");
6540 if (print_help_list
)
6546 printf (_("\nFor bug reporting instructions, please see:\n"));
6547 printf ("%s.\n", bug_report_url
);
6552 /* We do not exit here. Instead we have created a fake input file
6553 called 'help-dummy' which needs to be compiled, and we pass this
6554 on the various sub-processes, along with the --help switch.
6555 Ensure their output appears after ours. */
6556 fputc ('\n', stdout
);
6562 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
6564 printf ("Copyright %s 2010 Free Software Foundation, Inc.\n",
6566 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
6567 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
6572 /* We do not exit here. We use the same mechanism of --help to print
6573 the version of the sub-processes. */
6574 fputc ('\n', stdout
);
6583 fnotice (stderr
, "Target: %s\n", spec_machine
);
6584 fnotice (stderr
, "Configured with: %s\n", configuration_arguments
);
6586 #ifdef THREAD_MODEL_SPEC
6587 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6588 but there's no point in doing all this processing just to get
6589 thread_model back. */
6590 obstack_init (&obstack
);
6591 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6592 obstack_1grow (&obstack
, '\0');
6593 thrmod
= XOBFINISH (&obstack
, const char *);
6595 thrmod
= thread_model
;
6598 fnotice (stderr
, "Thread model: %s\n", thrmod
);
6600 /* compiler_version is truncated at the first space when initialized
6601 from version string, so truncate version_string at the first space
6602 before comparing. */
6603 for (n
= 0; version_string
[n
]; n
++)
6604 if (version_string
[n
] == ' ')
6607 if (! strncmp (version_string
, compiler_version
, n
)
6608 && compiler_version
[n
] == 0)
6609 fnotice (stderr
, "gcc version %s %s\n", version_string
,
6612 fnotice (stderr
, "gcc driver version %s %sexecuting gcc version %s\n",
6613 version_string
, pkgversion_string
, compiler_version
);
6619 if (n_infiles
== added_libraries
)
6620 fatal_error ("no input files");
6622 /* Make a place to record the compiler output file names
6623 that correspond to the input files. */
6626 i
+= lang_specific_extra_outfiles
;
6627 outfiles
= XCNEWVEC (const char *, i
);
6629 /* Record which files were specified explicitly as link input. */
6631 explicit_link_files
= XCNEWVEC (char, n_infiles
);
6633 combine_inputs
= have_o
|| flag_wpa
;
6635 for (i
= 0; (int) i
< n_infiles
; i
++)
6637 const char *name
= infiles
[i
].name
;
6638 struct compiler
*compiler
= lookup_compiler (name
,
6640 infiles
[i
].language
);
6642 if (compiler
&& !(compiler
->combinable
))
6643 combine_inputs
= false;
6645 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6646 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6647 infiles
[i
].incompiler
= compiler
;
6651 input_file_compiler
= compiler
;
6652 infiles
[i
].incompiler
= compiler
;
6656 /* Since there is no compiler for this input file, assume it is a
6658 explicit_link_files
[i
] = 1;
6659 infiles
[i
].incompiler
= NULL
;
6661 infiles
[i
].compiled
= false;
6662 infiles
[i
].preprocessed
= false;
6665 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
6666 fatal_error ("cannot specify -o with -c, -S or -E with multiple files");
6668 for (i
= 0; (int) i
< n_infiles
; i
++)
6670 int this_file_error
= 0;
6672 /* Tell do_spec what to substitute for %i. */
6674 input_file_number
= i
;
6675 set_input (infiles
[i
].name
);
6677 if (infiles
[i
].compiled
)
6680 /* Use the same thing in %o, unless cp->spec says otherwise. */
6682 outfiles
[i
] = gcc_input_filename
;
6684 /* Figure out which compiler from the file's suffix. */
6687 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6688 infiles
[i
].language
);
6690 if (input_file_compiler
)
6692 /* Ok, we found an applicable compiler. Run its spec. */
6694 if (input_file_compiler
->spec
[0] == '#')
6696 error ("%s: %s compiler not installed on this system",
6697 gcc_input_filename
, &input_file_compiler
->spec
[1]);
6698 this_file_error
= 1;
6704 if (debug_check_temp_file
[0])
6705 free (debug_check_temp_file
[0]);
6706 debug_check_temp_file
[0] = NULL
;
6708 if (debug_check_temp_file
[1])
6709 free (debug_check_temp_file
[1]);
6710 debug_check_temp_file
[1] = NULL
;
6713 value
= do_spec (input_file_compiler
->spec
);
6714 infiles
[i
].compiled
= true;
6716 this_file_error
= 1;
6717 else if (compare_debug
&& debug_check_temp_file
[0])
6720 inform (0, "recompiling with -fcompare-debug");
6722 compare_debug
= -compare_debug
;
6723 n_switches
= n_switches_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 switches
= switches_debug_check
[0];
6734 error ("during -fcompare-debug recompilation");
6735 this_file_error
= 1;
6738 gcc_assert (debug_check_temp_file
[1]
6739 && strcmp (debug_check_temp_file
[0],
6740 debug_check_temp_file
[1]));
6743 inform (0, "comparing final insns dumps");
6745 if (compare_files (debug_check_temp_file
))
6746 this_file_error
= 1;
6751 if (debug_check_temp_file
[0])
6752 free (debug_check_temp_file
[0]);
6753 debug_check_temp_file
[0] = NULL
;
6755 if (debug_check_temp_file
[1])
6756 free (debug_check_temp_file
[1]);
6757 debug_check_temp_file
[1] = NULL
;
6762 /* If this file's name does not contain a recognized suffix,
6763 record it as explicit linker input. */
6766 explicit_link_files
[i
] = 1;
6768 /* Clear the delete-on-failure queue, deleting the files in it
6769 if this compilation failed. */
6771 if (this_file_error
)
6773 delete_failure_queue ();
6776 /* If this compilation succeeded, don't delete those files later. */
6777 clear_failure_queue ();
6780 /* Reset the input file name to the first compile/object file name, for use
6781 with %b in LINK_SPEC. We use the first input file that we can find
6782 a compiler to compile it instead of using infiles.language since for
6783 languages other than C we use aliases that we then lookup later. */
6788 for (i
= 0; i
< n_infiles
; i
++)
6789 if (infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6791 set_input (infiles
[i
].name
);
6798 /* Make sure INPUT_FILE_NUMBER points to first available open
6800 input_file_number
= n_infiles
;
6801 if (lang_specific_pre_link ())
6805 /* Determine if there are any linker input files. */
6806 num_linker_inputs
= 0;
6807 for (i
= 0; (int) i
< n_infiles
; i
++)
6808 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6809 num_linker_inputs
++;
6811 /* Run ld to link all the compiler output files. */
6813 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
6815 int tmp
= execution_count
;
6816 const char *fuse_linker_plugin
= "fuse-linker-plugin";
6818 /* We'll use ld if we can't find collect2. */
6819 if (! strcmp (linker_name_spec
, "collect2"))
6821 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
6823 linker_name_spec
= "ld";
6826 if (switch_matches (fuse_linker_plugin
,
6827 fuse_linker_plugin
+ strlen (fuse_linker_plugin
), 0))
6829 linker_plugin_file_spec
= find_a_file (&exec_prefixes
,
6830 LTOPLUGINSONAME
, R_OK
,
6832 if (!linker_plugin_file_spec
)
6833 fatal_error ("-fuse-linker-plugin, but " LTOPLUGINSONAME
" not found");
6835 lto_libgcc_spec
= find_a_file (&startfile_prefixes
, "libgcc.a",
6837 if (!lto_libgcc_spec
)
6838 fatal_error ("could not find libgcc.a");
6840 lto_gcc_spec
= argv
[0];
6842 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6844 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
6845 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
6847 if (print_subprocess_help
== 1)
6849 printf (_("\nLinker options\n==============\n\n"));
6850 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
6851 " to the linker.\n\n"));
6854 value
= do_spec (link_command_spec
);
6857 linker_was_run
= (tmp
!= execution_count
);
6860 /* If options said don't run linker,
6861 complain about input files to be given to the linker. */
6863 if (! linker_was_run
&& !seen_error ())
6864 for (i
= 0; (int) i
< n_infiles
; i
++)
6865 if (explicit_link_files
[i
]
6866 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
6867 warning (0, "%s: linker input file unused because linking not done",
6870 /* Delete some or all of the temporary files we made. */
6873 delete_failure_queue ();
6874 delete_temp_files ();
6876 if (print_help_list
)
6878 printf (("\nFor bug reporting instructions, please see:\n"));
6879 printf ("%s\n", bug_report_url
);
6882 return (signal_count
!= 0 ? 2
6883 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
6887 /* Find the proper compilation spec for the file name NAME,
6888 whose length is LENGTH. LANGUAGE is the specified language,
6889 or 0 if this file is to be passed to the linker. */
6891 static struct compiler
*
6892 lookup_compiler (const char *name
, size_t length
, const char *language
)
6894 struct compiler
*cp
;
6896 /* If this was specified by the user to be a linker input, indicate that. */
6897 if (language
!= 0 && language
[0] == '*')
6900 /* Otherwise, look for the language, if one is spec'd. */
6903 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6904 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6907 error ("language %s not recognized", language
);
6911 /* Look for a suffix. */
6912 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6914 if (/* The suffix `-' matches only the file name `-'. */
6915 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6916 || (strlen (cp
->suffix
) < length
6917 /* See if the suffix matches the end of NAME. */
6918 && !strcmp (cp
->suffix
,
6919 name
+ length
- strlen (cp
->suffix
))
6924 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6925 /* Look again, but case-insensitively this time. */
6927 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6929 if (/* The suffix `-' matches only the file name `-'. */
6930 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6931 || (strlen (cp
->suffix
) < length
6932 /* See if the suffix matches the end of NAME. */
6933 && ((!strcmp (cp
->suffix
,
6934 name
+ length
- strlen (cp
->suffix
))
6935 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6936 && !strcasecmp (cp
->suffix
,
6937 name
+ length
- strlen (cp
->suffix
)))
6943 if (cp
>= compilers
)
6945 if (cp
->spec
[0] != '@')
6946 /* A non-alias entry: return it. */
6949 /* An alias entry maps a suffix to a language.
6950 Search for the language; pass 0 for NAME and LENGTH
6951 to avoid infinite recursion if language not found. */
6952 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6958 save_string (const char *s
, int len
)
6960 char *result
= XNEWVEC (char, len
+ 1);
6962 memcpy (result
, s
, len
);
6968 pfatal_with_name (const char *name
)
6970 perror_with_name (name
);
6971 delete_temp_files ();
6976 perror_with_name (const char *name
)
6978 error ("%s: %m", name
);
6982 validate_switches_from_spec (const char *spec
)
6984 const char *p
= spec
;
6987 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6988 /* We have a switch spec. */
6989 p
= validate_switches (p
+ 1);
6993 validate_all_switches (void)
6995 struct compiler
*comp
;
6996 struct spec_list
*spec
;
6998 for (comp
= compilers
; comp
->spec
; comp
++)
6999 validate_switches_from_spec (comp
->spec
);
7001 /* Look through the linked list of specs read from the specs file. */
7002 for (spec
= specs
; spec
; spec
= spec
->next
)
7003 validate_switches_from_spec (*spec
->ptr_spec
);
7005 validate_switches_from_spec (link_command_spec
);
7008 /* Look at the switch-name that comes after START
7009 and mark as valid all supplied switches that match it. */
7012 validate_switches (const char *start
)
7014 const char *p
= start
;
7018 bool suffix
= false;
7019 bool starred
= false;
7021 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7030 if (*p
== '.' || *p
== ',')
7034 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7035 || *p
== ',' || *p
== '.' || *p
== '@')
7040 starred
= true, p
++;
7046 /* Mark all matching switches as valid. */
7047 for (i
= 0; i
< n_switches
; i
++)
7048 if (!strncmp (switches
[i
].part1
, atom
, len
)
7049 && (starred
|| switches
[i
].part1
[len
] == 0))
7050 switches
[i
].validated
= 1;
7054 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
7057 if (*p
&& p
[-1] == ':')
7059 while (*p
&& *p
!= ';' && *p
!= '}')
7064 if (*p
== '{' || *p
== '<')
7065 p
= validate_switches (p
+1);
7066 else if (p
[0] == 'W' && p
[1] == '{')
7067 p
= validate_switches (p
+2);
7074 if (*p
&& p
[-1] == ';')
7088 static struct mdswitchstr
*mdswitches
;
7089 static int n_mdswitches
;
7091 /* Check whether a particular argument was used. The first time we
7092 canonicalize the switches to keep only the ones we care about. */
7095 used_arg (const char *p
, int len
)
7100 const char *replace
;
7105 static struct mswitchstr
*mswitches
;
7106 static int n_mswitches
;
7111 struct mswitchstr
*matches
;
7115 /* Break multilib_matches into the component strings of string
7116 and replacement string. */
7117 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7122 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
7124 q
= multilib_matches
;
7133 fatal_error ("multilib spec %qs is invalid",
7138 matches
[i
].len
= q
- matches
[i
].str
;
7140 matches
[i
].replace
= ++q
;
7141 while (*q
!= ';' && *q
!= '\0')
7144 goto invalid_matches
;
7147 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7153 /* Now build a list of the replacement string for switches that we care
7154 about. Make sure we allocate at least one entry. This prevents
7155 xmalloc from calling fatal, and prevents us from re-executing this
7158 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7159 for (i
= 0; i
< n_switches
; i
++)
7160 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
7162 int xlen
= strlen (switches
[i
].part1
);
7163 for (j
= 0; j
< cnt
; j
++)
7164 if (xlen
== matches
[j
].len
7165 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7167 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7168 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7169 mswitches
[n_mswitches
].replace
= (char *) 0;
7170 mswitches
[n_mswitches
].rep_len
= 0;
7176 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7177 on the command line nor any options mutually incompatible with
7179 for (i
= 0; i
< n_mdswitches
; i
++)
7183 for (q
= multilib_options
; *q
!= '\0'; q
++)
7189 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7190 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7192 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7199 if (*q
!= ' ' && *q
!= '\0')
7201 while (*r
!= ' ' && *r
!= '\0')
7204 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7207 if (used_arg (r
, q
- r
))
7212 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7213 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7214 mswitches
[n_mswitches
].replace
= (char *) 0;
7215 mswitches
[n_mswitches
].rep_len
= 0;
7228 for (i
= 0; i
< n_mswitches
; i
++)
7229 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7236 default_arg (const char *p
, int len
)
7240 for (i
= 0; i
< n_mdswitches
; i
++)
7241 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7247 /* Work out the subdirectory to use based on the options. The format of
7248 multilib_select is a list of elements. Each element is a subdirectory
7249 name followed by a list of options followed by a semicolon. The format
7250 of multilib_exclusions is the same, but without the preceding
7251 directory. First gcc will check the exclusions, if none of the options
7252 beginning with an exclamation point are present, and all of the other
7253 options are present, then we will ignore this completely. Passing
7254 that, gcc will consider each multilib_select in turn using the same
7255 rules for matching the options. If a match is found, that subdirectory
7259 set_multilib_dir (void)
7262 unsigned int this_path_len
;
7263 const char *this_path
, *this_arg
;
7264 const char *start
, *end
;
7266 int ok
, ndfltok
, first
;
7269 start
= multilib_defaults
;
7270 while (*start
== ' ' || *start
== '\t')
7272 while (*start
!= '\0')
7275 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7277 while (*start
== ' ' || *start
== '\t')
7285 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
7286 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7288 while (*start
== ' ' || *start
== '\t')
7294 for (end
= start
+ 1;
7295 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7298 obstack_grow (&multilib_obstack
, start
, end
- start
);
7299 obstack_1grow (&multilib_obstack
, 0);
7300 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
7301 mdswitches
[i
++].len
= end
- start
;
7308 p
= multilib_exclusions
;
7311 /* Ignore newlines. */
7318 /* Check the arguments. */
7325 fatal_error ("multilib exclusions %qs is invalid",
7326 multilib_exclusions
);
7336 while (*p
!= ' ' && *p
!= ';')
7339 goto invalid_exclusions
;
7343 if (*this_arg
!= '!')
7351 ok
= used_arg (this_arg
, p
- this_arg
);
7366 p
= multilib_select
;
7369 /* Ignore newlines. */
7376 /* Get the initial path. */
7383 fatal_error ("multilib select %qs is invalid",
7388 this_path_len
= p
- this_path
;
7390 /* Check the arguments. */
7397 goto invalid_select
;
7406 while (*p
!= ' ' && *p
!= ';')
7409 goto invalid_select
;
7413 if (*this_arg
!= '!')
7421 /* If this is a default argument, we can just ignore it.
7422 This is true even if this_arg begins with '!'. Beginning
7423 with '!' does not mean that this argument is necessarily
7424 inappropriate for this library: it merely means that
7425 there is a more specific library which uses this
7426 argument. If this argument is a default, we need not
7427 consider that more specific library. */
7428 ok
= used_arg (this_arg
, p
- this_arg
);
7435 if (default_arg (this_arg
, p
- this_arg
))
7444 if (this_path_len
!= 1
7445 || this_path
[0] != '.')
7447 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
7450 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7451 new_multilib_dir
[this_path_len
] = '\0';
7452 q
= strchr (new_multilib_dir
, ':');
7455 multilib_dir
= new_multilib_dir
;
7462 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7464 while (q
< end
&& *q
!= ':')
7468 char *new_multilib_os_dir
= XNEWVEC (char, end
- q
);
7469 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7470 new_multilib_os_dir
[end
- q
- 1] = '\0';
7471 multilib_os_dir
= new_multilib_os_dir
;
7479 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7480 && strcmp (multilib_os_dir
, ".") == 0)
7482 free (CONST_CAST (char *, multilib_os_dir
));
7483 multilib_os_dir
= NULL
;
7485 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7486 multilib_os_dir
= multilib_dir
;
7489 /* Print out the multiple library subdirectory selection
7490 information. This prints out a series of lines. Each line looks
7491 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7492 required. Only the desired options are printed out, the negative
7493 matches. The options are print without a leading dash. There are
7494 no spaces to make it easy to use the information in the shell.
7495 Each subdirectory is printed only once. This assumes the ordering
7496 generated by the genmultilib script. Also, we leave out ones that match
7500 print_multilib_info (void)
7502 const char *p
= multilib_select
;
7503 const char *last_path
= 0, *this_path
;
7505 unsigned int last_path_len
= 0;
7510 /* Ignore newlines. */
7517 /* Get the initial path. */
7524 fatal_error ("multilib select %qs is invalid", multilib_select
);
7530 /* When --disable-multilib was used but target defines
7531 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7532 to find multilib_os_dir, so skip them from output. */
7533 if (this_path
[0] == '.' && this_path
[1] == ':')
7536 /* Check for matches with the multilib_exclusions. We don't bother
7537 with the '!' in either list. If any of the exclusion rules match
7538 all of its options with the select rule, we skip it. */
7540 const char *e
= multilib_exclusions
;
7541 const char *this_arg
;
7546 /* Ignore newlines. */
7553 /* Check the arguments. */
7562 fatal_error ("multilib exclusion %qs is invalid",
7563 multilib_exclusions
);
7574 while (*e
!= ' ' && *e
!= ';')
7577 goto invalid_exclusion
;
7585 int len
= e
- this_arg
;
7588 goto invalid_select
;
7592 while (*q
!= ' ' && *q
!= ';')
7595 goto invalid_select
;
7599 if (! strncmp (arg
, this_arg
,
7600 (len
< q
- arg
) ? q
- arg
: len
)
7601 || default_arg (this_arg
, e
- this_arg
))
7631 /* If this is a duplicate, skip it. */
7632 skip
= (last_path
!= 0
7633 && (unsigned int) (p
- this_path
) == last_path_len
7634 && ! strncmp (last_path
, this_path
, last_path_len
));
7636 last_path
= this_path
;
7637 last_path_len
= p
- this_path
;
7640 /* If this directory requires any default arguments, we can skip
7641 it. We will already have printed a directory identical to
7642 this one which does not require that default argument. */
7653 goto invalid_select
;
7660 while (*q
!= ' ' && *q
!= ';')
7663 goto invalid_select
;
7668 && default_arg (arg
, q
- arg
))
7683 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7694 goto invalid_select
;
7702 use_arg
= *p
!= '!';
7707 while (*p
!= ' ' && *p
!= ';')
7710 goto invalid_select
;
7722 /* If there are extra options, print them now. */
7723 if (multilib_extra
&& *multilib_extra
)
7725 int print_at
= TRUE
;
7728 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7749 /* getenv built-in spec function.
7751 Returns the value of the environment variable given by its first
7752 argument, concatenated with the second argument. If the
7753 environment variable is not defined, a fatal error is issued. */
7756 getenv_spec_function (int argc
, const char **argv
)
7766 value
= getenv (argv
[0]);
7768 fatal_error ("environment variable %qs not defined", argv
[0]);
7770 /* We have to escape every character of the environment variable so
7771 they are not interpreted as active spec characters. A
7772 particularly painful case is when we are reading a variable
7773 holding a windows path complete with \ separators. */
7774 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
7775 result
= XNEWVAR (char, len
);
7776 for (ptr
= result
; *value
; ptr
+= 2)
7782 strcpy (ptr
, argv
[1]);
7787 /* if-exists built-in spec function.
7789 Checks to see if the file specified by the absolute pathname in
7790 ARGS exists. Returns that pathname if found.
7792 The usual use for this function is to check for a library file
7793 (whose name has been expanded with %s). */
7796 if_exists_spec_function (int argc
, const char **argv
)
7798 /* Must have only one argument. */
7799 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7805 /* if-exists-else built-in spec function.
7807 This is like if-exists, but takes an additional argument which
7808 is returned if the first argument does not exist. */
7811 if_exists_else_spec_function (int argc
, const char **argv
)
7813 /* Must have exactly two arguments. */
7817 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7823 /* replace-outfile built-in spec function.
7825 This looks for the first argument in the outfiles array's name and
7826 replaces it with the second argument. */
7829 replace_outfile_spec_function (int argc
, const char **argv
)
7832 /* Must have exactly two arguments. */
7836 for (i
= 0; i
< n_infiles
; i
++)
7838 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7839 outfiles
[i
] = xstrdup (argv
[1]);
7844 /* remove-outfile built-in spec function.
7846 * This looks for the first argument in the outfiles array's name and
7850 remove_outfile_spec_function (int argc
, const char **argv
)
7853 /* Must have exactly one argument. */
7857 for (i
= 0; i
< n_infiles
; i
++)
7859 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7865 /* Given two version numbers, compares the two numbers.
7866 A version number must match the regular expression
7867 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
7870 compare_version_strings (const char *v1
, const char *v2
)
7875 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
7876 REG_EXTENDED
| REG_NOSUB
) != 0)
7878 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
7879 if (rresult
== REG_NOMATCH
)
7880 fatal_error ("invalid version number %qs", v1
);
7881 else if (rresult
!= 0)
7883 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
7884 if (rresult
== REG_NOMATCH
)
7885 fatal_error ("invalid version number %qs", v2
);
7886 else if (rresult
!= 0)
7889 return strverscmp (v1
, v2
);
7893 /* version_compare built-in spec function.
7895 This takes an argument of the following form:
7897 <comparison-op> <arg1> [<arg2>] <switch> <result>
7899 and produces "result" if the comparison evaluates to true,
7900 and nothing if it doesn't.
7902 The supported <comparison-op> values are:
7904 >= true if switch is a later (or same) version than arg1
7906 < true if switch is an earlier version than arg1
7908 >< true if switch is arg1 or later, and earlier than arg2
7909 <> true if switch is earlier than arg1 or is arg2 or later
7911 If the switch is not present, the condition is false unless
7912 the first character of the <comparison-op> is '!'.
7915 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
7916 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
7919 version_compare_spec_function (int argc
, const char **argv
)
7923 const char *switch_value
= NULL
;
7928 fatal_error ("too few arguments to %%:version-compare");
7929 if (argv
[0][0] == '\0')
7931 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
7933 if (argc
!= nargs
+ 3)
7934 fatal_error ("too many arguments to %%:version-compare");
7936 switch_len
= strlen (argv
[nargs
+ 1]);
7937 for (i
= 0; i
< n_switches
; i
++)
7938 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
7939 && check_live_switch (i
, switch_len
))
7940 switch_value
= switches
[i
].part1
+ switch_len
;
7942 if (switch_value
== NULL
)
7946 comp1
= compare_version_strings (switch_value
, argv
[1]);
7948 comp2
= compare_version_strings (switch_value
, argv
[2]);
7950 comp2
= -1; /* This value unused. */
7953 switch (argv
[0][0] << 8 | argv
[0][1])
7955 case '>' << 8 | '=':
7956 result
= comp1
>= 0;
7958 case '!' << 8 | '<':
7959 result
= comp1
>= 0 || switch_value
== NULL
;
7964 case '!' << 8 | '>':
7965 result
= comp1
< 0 || switch_value
== NULL
;
7967 case '>' << 8 | '<':
7968 result
= comp1
>= 0 && comp2
< 0;
7970 case '<' << 8 | '>':
7971 result
= comp1
< 0 || comp2
>= 0;
7975 fatal_error ("unknown operator %qs in %%:version-compare", argv
[0]);
7980 return argv
[nargs
+ 2];
7983 /* %:include builtin spec function. This differs from %include in that it
7984 can be nested inside a spec, and thus be conditionalized. It takes
7985 one argument, the filename, and looks for it in the startfile path.
7986 The result is always NULL, i.e. an empty expansion. */
7989 include_spec_function (int argc
, const char **argv
)
7996 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
7997 read_specs (file
? file
: argv
[0], FALSE
);
8002 /* %:find-file spec function. This function replaces its argument by
8003 the file found thru find_file, that is the -print-file-name gcc
8006 find_file_spec_function (int argc
, const char **argv
)
8013 file
= find_file (argv
[0]);
8018 /* %:find-plugindir spec function. This function replaces its argument
8019 by the -iplugindir=<dir> option. `dir' is found thru find_file, that
8020 is the -print-file-name gcc program option. */
8022 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
8029 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
8034 /* %:print-asm-header spec function. Print a banner to say that the
8035 following output is from the assembler. */
8038 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
8039 const char **argv ATTRIBUTE_UNUSED
)
8041 printf (_("Assembler options\n=================\n\n"));
8042 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
8047 /* Compute a timestamp to initialize flag_random_seed. */
8050 get_local_tick (void)
8054 /* Get some more or less random data. */
8055 #ifdef HAVE_GETTIMEOFDAY
8059 gettimeofday (&tv
, NULL
);
8060 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
8064 time_t now
= time (NULL
);
8066 if (now
!= (time_t)-1)
8067 ret
= (unsigned) now
;
8074 /* %:compare-debug-dump-opt spec function. Save the last argument,
8075 expected to be the last -fdump-final-insns option, or generate a
8079 compare_debug_dump_opt_spec_function (int arg
,
8080 const char **argv ATTRIBUTE_UNUSED
)
8085 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
8088 fatal_error ("too many arguments to %%:compare-debug-dump-opt");
8090 do_spec_2 ("%{fdump-final-insns=*:%*}");
8091 do_spec_1 (" ", 0, NULL
);
8093 if (argbuf_index
> 0 && strcmp (argv
[argbuf_index
- 1], "."))
8098 name
= xstrdup (argv
[argbuf_index
- 1]);
8103 const char *ext
= NULL
;
8105 if (argbuf_index
> 0)
8107 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
8110 else if (!compare_debug
)
8113 do_spec_2 ("%g.gkd");
8115 do_spec_1 (" ", 0, NULL
);
8117 gcc_assert (argbuf_index
> 0);
8119 name
= concat (argbuf
[argbuf_index
- 1], ext
, NULL
);
8121 ret
= concat ("-fdump-final-insns=", name
, NULL
);
8124 which
= compare_debug
< 0;
8125 debug_check_temp_file
[which
] = name
;
8129 unsigned HOST_WIDE_INT value
= get_local_tick () ^ getpid ();
8131 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
8135 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
8144 static const char *debug_auxbase_opt
;
8146 /* %:compare-debug-self-opt spec function. Expands to the options
8147 that are to be passed in the second compilation of
8151 compare_debug_self_opt_spec_function (int arg
,
8152 const char **argv ATTRIBUTE_UNUSED
)
8155 fatal_error ("too many arguments to %%:compare-debug-self-opt");
8157 if (compare_debug
>= 0)
8160 do_spec_2 ("%{c|S:%{o*:%*}}");
8161 do_spec_1 (" ", 0, NULL
);
8163 if (argbuf_index
> 0)
8164 debug_auxbase_opt
= concat ("-auxbase-strip ",
8165 argbuf
[argbuf_index
- 1],
8168 debug_auxbase_opt
= NULL
;
8171 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
8172 %<fdump-final-insns=* -w -S -o %j \
8173 %{!fcompare-debug-second:-fcompare-debug-second} \
8174 ", compare_debug_opt
, NULL
);
8177 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
8178 options that are to be passed in the second compilation of
8179 compare-debug. It expects, as an argument, the basename of the
8180 current input file name, with the .gk suffix appended to it. */
8183 compare_debug_auxbase_opt_spec_function (int arg
,
8190 fatal_error ("too few arguments to %%:compare-debug-auxbase-opt");
8193 fatal_error ("too many arguments to %%:compare-debug-auxbase-opt");
8195 if (compare_debug
>= 0)
8198 len
= strlen (argv
[0]);
8199 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
8200 fatal_error ("argument to %%:compare-debug-auxbase-opt "
8201 "does not end in .gk");
8203 if (debug_auxbase_opt
)
8204 return debug_auxbase_opt
;
8206 #define OPT "-auxbase "
8209 name
= (char*) xmalloc (sizeof (OPT
) + len
);
8210 memcpy (name
, OPT
, sizeof (OPT
) - 1);
8211 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
8212 name
[sizeof (OPT
) - 1 + len
] = '\0';