1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
5 Free Software Foundation, Inc.
7 This file is part of GCC.
9 GCC is free software; you can redistribute it and/or modify it under
10 the terms of the GNU General Public License as published by the Free
11 Software Foundation; either version 3, or (at your option) any later
14 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
15 WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 You should have received a copy of the GNU General Public License
20 along with GCC; see the file COPYING3. If not see
21 <http://www.gnu.org/licenses/>. */
23 /* This program is the user interface to the C compiler and possibly to
24 other compilers. It is used because compilation is a complicated procedure
25 which involves running several programs and passing temporary files between
26 them, forwarding the users switches to those programs selectively,
27 and deleting the temporary files at the end.
29 CC recognizes how to compile each input file by suffixes in the file names.
30 Once it knows which kind of compilation to perform, the procedure for
31 compilation is specified by a string called a "spec". */
35 #include "coretypes.h"
36 #include "multilib.h" /* before tm.h */
43 #include "diagnostic.h"
48 /* By default there is no special suffix for target executables. */
49 /* FIXME: when autoconf is fixed, remove the host check - dj */
50 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
51 #define HAVE_TARGET_EXECUTABLE_SUFFIX
54 /* By default there is no special suffix for host executables. */
55 #ifdef HOST_EXECUTABLE_SUFFIX
56 #define HAVE_HOST_EXECUTABLE_SUFFIX
58 #define HOST_EXECUTABLE_SUFFIX ""
61 /* By default, the suffix for target object files is ".o". */
62 #ifdef TARGET_OBJECT_SUFFIX
63 #define HAVE_TARGET_OBJECT_SUFFIX
65 #define TARGET_OBJECT_SUFFIX ".o"
68 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
70 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
71 #ifndef LIBRARY_PATH_ENV
72 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
75 /* If a stage of compilation returns an exit status >= 1,
76 compilation of that file ceases. */
78 #define MIN_FATAL_STATUS 1
80 /* Flag set by cppspec.c to 1. */
83 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
84 static bool at_file_supplied
;
86 /* Definition of string containing the arguments given to configure. */
87 #include "configargs.h"
89 /* Flag saying to print the command line options understood by gcc and its
92 static int print_help_list
;
94 /* Flag saying to print the version of gcc and its sub-processes. */
96 static int print_version
;
98 /* Flag indicating whether we should ONLY print the command and
99 arguments (like verbose_flag) without executing the command.
100 Displayed arguments are quoted so that the generated command
101 line is suitable for execution. This is intended for use in
102 shell scripts to capture the driver-generated command line. */
103 static int verbose_only_flag
;
105 /* Flag indicating how to print command line options of sub-processes. */
107 static int print_subprocess_help
;
109 /* Whether we should report subprocess execution times to a file. */
111 FILE *report_times_to_file
= NULL
;
113 /* Nonzero means place this string before uses of /, so that include
114 and library files can be found in an alternate location. */
116 #ifdef TARGET_SYSTEM_ROOT
117 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
119 static const char *target_system_root
= 0;
122 /* Nonzero means pass the updated target_system_root to the compiler. */
124 static int target_system_root_changed
;
126 /* Nonzero means append this string to target_system_root. */
128 static const char *target_sysroot_suffix
= 0;
130 /* Nonzero means append this string to target_system_root for headers. */
132 static const char *target_sysroot_hdrs_suffix
= 0;
134 /* Nonzero means write "temp" files in source directory
135 and use the source file's name in them, and don't delete them. */
137 static enum save_temps
{
138 SAVE_TEMPS_NONE
, /* no -save-temps */
139 SAVE_TEMPS_CWD
, /* -save-temps in current directory */
140 SAVE_TEMPS_OBJ
/* -save-temps in object directory */
143 /* Output file to use to get the object directory for -save-temps=obj */
144 static char *save_temps_prefix
= 0;
145 static size_t save_temps_length
= 0;
147 /* The compiler version. */
149 static const char *compiler_version
;
151 /* The target version. */
153 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
155 /* The target machine. */
157 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
159 /* Nonzero if cross-compiling.
160 When -b is used, the value comes from the `specs' file. */
162 #ifdef CROSS_DIRECTORY_STRUCTURE
163 static const char *cross_compile
= "1";
165 static const char *cross_compile
= "0";
168 /* Greatest exit code of sub-processes that has been encountered up to
170 static int greatest_status
= 1;
172 /* This is the obstack which we use to allocate many strings. */
174 static struct obstack obstack
;
176 /* This is the obstack to build an environment variable to pass to
177 collect2 that describes all of the relevant switches of what to
178 pass the compiler in building the list of pointers to constructors
181 static struct obstack collect_obstack
;
183 /* Forward declaration for prototypes. */
187 static void init_spec (void);
188 static void store_arg (const char *, int, int);
189 static void insert_wrapper (const char *);
190 static char *load_specs (const char *);
191 static void read_specs (const char *, int);
192 static void set_spec (const char *, const char *);
193 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
194 static char *build_search_list (const struct path_prefix
*, const char *,
196 static void xputenv (const char *);
197 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
199 static int access_check (const char *, int);
200 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
201 static void add_prefix (struct path_prefix
*, const char *, const char *,
203 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
204 const char *, int, int, int);
205 static char *skip_whitespace (char *);
206 static void delete_if_ordinary (const char *);
207 static void delete_temp_files (void);
208 static void delete_failure_queue (void);
209 static void clear_failure_queue (void);
210 static int check_live_switch (int, int);
211 static const char *handle_braces (const char *);
212 static inline bool input_suffix_matches (const char *, const char *);
213 static inline bool switch_matches (const char *, const char *, int);
214 static inline void mark_matching_switches (const char *, const char *, int);
215 static inline void process_marked_switches (void);
216 static const char *process_brace_body (const char *, const char *, const char *, int, int);
217 static const struct spec_function
*lookup_spec_function (const char *);
218 static const char *eval_spec_function (const char *, const char *);
219 static const char *handle_spec_function (const char *);
220 static char *save_string (const char *, int);
221 static void set_collect_gcc_options (void);
222 static int do_spec_1 (const char *, int, const char *);
223 static int do_spec_2 (const char *);
224 static void do_option_spec (const char *, const char *);
225 static void do_self_spec (const char *);
226 static const char *find_file (const char *);
227 static int is_directory (const char *, bool);
228 static const char *validate_switches (const char *);
229 static void validate_all_switches (void);
230 static inline void validate_switches_from_spec (const char *);
231 static void give_switch (int, int);
232 static int used_arg (const char *, int);
233 static int default_arg (const char *, int);
234 static void set_multilib_dir (void);
235 static void print_multilib_info (void);
236 static void perror_with_name (const char *);
237 static void display_help (void);
238 static void add_preprocessor_option (const char *, int);
239 static void add_assembler_option (const char *, int);
240 static void add_linker_option (const char *, int);
241 static void process_command (unsigned int, struct cl_decoded_option
*);
242 static int execute (void);
243 static void alloc_args (void);
244 static void clear_args (void);
245 static void fatal_signal (int);
246 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
247 static void init_gcc_specs (struct obstack
*, const char *, const char *,
250 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
251 static const char *convert_filename (const char *, int, int);
254 static const char *getenv_spec_function (int, const char **);
255 static const char *if_exists_spec_function (int, const char **);
256 static const char *if_exists_else_spec_function (int, const char **);
257 static const char *replace_outfile_spec_function (int, const char **);
258 static const char *remove_outfile_spec_function (int, const char **);
259 static const char *version_compare_spec_function (int, const char **);
260 static const char *include_spec_function (int, const char **);
261 static const char *find_file_spec_function (int, const char **);
262 static const char *find_plugindir_spec_function (int, const char **);
263 static const char *print_asm_header_spec_function (int, const char **);
264 static const char *compare_debug_dump_opt_spec_function (int, const char **);
265 static const char *compare_debug_self_opt_spec_function (int, const char **);
266 static const char *compare_debug_auxbase_opt_spec_function (int, const char **);
267 static const char *pass_through_libs_spec_func (int, const char **);
269 /* The Specs Language
271 Specs are strings containing lines, each of which (if not blank)
272 is made up of a program name, and arguments separated by spaces.
273 The program name must be exact and start from root, since no path
274 is searched and it is unreliable to depend on the current working directory.
275 Redirection of input or output is not supported; the subprograms must
276 accept filenames saying what files to read and write.
278 In addition, the specs can contain %-sequences to substitute variable text
279 or for conditional text. Here is a table of all defined %-sequences.
280 Note that spaces are not generated automatically around the results of
281 expanding these sequences; therefore, you can concatenate them together
282 or with constant text in a single argument.
284 %% substitute one % into the program name or argument.
285 %i substitute the name of the input file being processed.
286 %b substitute the basename of the input file being processed.
287 This is the substring up to (and not including) the last period
288 and not including the directory unless -save-temps was specified
289 to put temporaries in a different location.
290 %B same as %b, but include the file suffix (text after the last period).
292 substitute a file name that has suffix SUFFIX and is chosen
293 once per compilation, and mark the argument a la %d. To reduce
294 exposure to denial-of-service attacks, the file name is now
295 chosen in a way that is hard to predict even when previously
296 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
297 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
298 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
299 had been pre-processed. Previously, %g was simply substituted
300 with a file name chosen once per compilation, without regard
301 to any appended suffix (which was therefore treated just like
302 ordinary text), making such attacks more likely to succeed.
304 like %g, but if -pipe is in effect, expands simply to "-".
306 like %g, but if -pipe is in effect, expands to nothing. (We have both
307 %| and %m to accommodate differences between system assemblers; see
308 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
310 like %g, but generates a new temporary file name even if %uSUFFIX
313 substitutes the last file name generated with %uSUFFIX, generating a
314 new one if there is no such last file name. In the absence of any
315 %uSUFFIX, this is just like %gSUFFIX, except they don't share
316 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
317 would involve the generation of two distinct file names, one
318 for each `%g.s' and another for each `%U.s'. Previously, %U was
319 simply substituted with a file name chosen for the previous %u,
320 without regard to any appended suffix.
322 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
323 writable, and if save-temps is off; otherwise, substitute the name
324 of a temporary file, just like %u. This temporary file is not
325 meant for communication between processes, but rather as a junk
328 substitutes .SUFFIX for the suffixes of a matched switch's args when
329 it is subsequently output with %*. SUFFIX is terminated by the next
331 %d marks the argument containing or following the %d as a
332 temporary file name, so that that file will be deleted if GCC exits
333 successfully. Unlike %g, this contributes no text to the argument.
334 %w marks the argument containing or following the %w as the
335 "output file" of this compilation. This puts the argument
336 into the sequence of arguments that %o will substitute later.
337 %V indicates that this compilation produces no "output file".
339 like %{...} but mark last argument supplied within
340 as a file to be deleted on failure.
341 %o substitutes the names of all the output files, with spaces
342 automatically placed around them. You should write spaces
343 around the %o as well or the results are undefined.
344 %o is for use in the specs for running the linker.
345 Input files whose names have no recognized suffix are not compiled
346 at all, but they are included among the output files, so they will
348 %O substitutes the suffix for object files. Note that this is
349 handled specially when it immediately follows %g, %u, or %U
350 (with or without a suffix argument) because of the need for
351 those to form complete file names. The handling is such that
352 %O is treated exactly as if it had already been substituted,
353 except that %g, %u, and %U do not currently support additional
354 SUFFIX characters following %O as they would following, for
356 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
357 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
358 and -B options) and -imultilib as necessary.
359 %s current argument is the name of a library or startup file of some sort.
360 Search for that file in a standard list of directories
361 and substitute the full name found.
362 %eSTR Print STR as an error message. STR is terminated by a newline.
363 Use this when inconsistent options are detected.
364 %nSTR Print STR as a notice. STR is terminated by a newline.
365 %x{OPTION} Accumulate an option for %X.
366 %X Output the accumulated linker options specified by compilations.
367 %Y Output the accumulated assembler options specified by compilations.
368 %Z Output the accumulated preprocessor options specified by compilations.
369 %a process ASM_SPEC as a spec.
370 This allows config.h to specify part of the spec for running as.
371 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
372 used here. This can be used to run a post-processor after the
373 assembler has done its job.
374 %D Dump out a -L option for each directory in startfile_prefixes.
375 If multilib_dir is set, extra entries are generated with it affixed.
376 %l process LINK_SPEC as a spec.
377 %L process LIB_SPEC as a spec.
378 %G process LIBGCC_SPEC as a spec.
379 %R Output the concatenation of target_system_root and
380 target_sysroot_suffix.
381 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
382 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
383 %C process CPP_SPEC as a spec.
384 %1 process CC1_SPEC as a spec.
385 %2 process CC1PLUS_SPEC as a spec.
386 %* substitute the variable part of a matched option. (See below.)
387 Note that each comma in the substituted string is replaced by
389 %<S remove all occurrences of -S from the command line.
390 Note - this command is position dependent. % commands in the
391 spec string before this one will see -S, % commands in the
392 spec string after this one will not.
393 %>S Similar to "%<S", but keep it in the GCC command line.
394 %<S* remove all occurrences of all switches beginning with -S from the
397 Call the named function FUNCTION, passing it ARGS. ARGS is
398 first processed as a nested spec string, then split into an
399 argument vector in the usual fashion. The function returns
400 a string which is processed as if it had appeared literally
401 as part of the current spec.
402 %{S} substitutes the -S switch, if that switch was given to GCC.
403 If that switch was not specified, this substitutes nothing.
404 Here S is a metasyntactic variable.
405 %{S*} substitutes all the switches specified to GCC whose names start
406 with -S. This is used for -o, -I, etc; switches that take
407 arguments. GCC considers `-o foo' as being one switch whose
408 name starts with `o'. %{o*} would substitute this text,
409 including the space; thus, two arguments would be generated.
410 %{S*&T*} likewise, but preserve order of S and T options (the order
411 of S and T in the spec is not significant). Can be any number
412 of ampersand-separated variables; for each the wild card is
413 optional. Useful for CPP as %{D*&U*&A*}.
415 %{S:X} substitutes X, if the -S switch was given to GCC.
416 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
417 %{S*:X} substitutes X if one or more switches whose names start
418 with -S was given to GCC. Normally X is substituted only
419 once, no matter how many such switches appeared. However,
420 if %* appears somewhere in X, then X will be substituted
421 once for each matching switch, with the %* replaced by the
422 part of that switch that matched the '*'.
423 %{.S:X} substitutes X, if processing a file with suffix S.
424 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
425 %{,S:X} substitutes X, if processing a file which will use spec S.
426 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
428 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
429 combined with '!', '.', ',', and '*' as above binding stronger
431 If %* appears in X, all of the alternatives must be starred, and
432 only the first matching alternative is substituted.
433 %{S:X; if S was given to GCC, substitutes X;
434 T:Y; else if T was given to GCC, substitutes Y;
435 :D} else substitutes D. There can be as many clauses as you need.
436 This may be combined with '.', '!', ',', '|', and '*' as above.
438 %(Spec) processes a specification defined in a specs file as *Spec:
439 %[Spec] as above, but put __ around -D arguments
441 The conditional text X in a %{S:X} or similar construct may contain
442 other nested % constructs or spaces, or even newlines. They are
443 processed as usual, as described above. Trailing white space in X is
444 ignored. White space may also appear anywhere on the left side of the
445 colon in these constructs, except between . or * and the corresponding
448 The -O, -f, -m, and -W switches are handled specifically in these
449 constructs. If another value of -O or the negated form of a -f, -m, or
450 -W switch is found later in the command line, the earlier switch
451 value is ignored, except with {S*} where S is just one letter; this
452 passes all matching options.
454 The character | at the beginning of the predicate text is used to indicate
455 that a command should be piped to the following command, but only if -pipe
458 Note that it is built into GCC which switches take arguments and which
459 do not. You might think it would be useful to generalize this to
460 allow each compiler's spec to say which switches take arguments. But
461 this cannot be done in a consistent fashion. GCC cannot even decide
462 which input files have been specified without knowing which switches
463 take arguments, and it must know which input files to compile in order
464 to tell which compilers to run.
466 GCC also knows implicitly that arguments starting in `-l' are to be
467 treated as compiler output files, and passed to the linker in their
468 proper position among the other output files. */
470 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
472 /* config.h can define ASM_SPEC to provide extra args to the assembler
473 or extra switch-translations. */
478 /* config.h can define ASM_FINAL_SPEC to run a post processor after
479 the assembler has run. */
480 #ifndef ASM_FINAL_SPEC
481 #define ASM_FINAL_SPEC ""
484 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
485 or extra switch-translations. */
490 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
491 or extra switch-translations. */
496 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
497 or extra switch-translations. */
499 #define CC1PLUS_SPEC ""
502 /* config.h can define LINK_SPEC to provide extra args to the linker
503 or extra switch-translations. */
508 /* config.h can define LIB_SPEC to override the default libraries. */
510 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
515 /* XXX: valid only for GNU ld */
516 /* XXX: should exactly match hooks provided by libmudflap.a */
517 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
518 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
519 --wrap=mmap --wrap=munmap --wrap=alloca\
520 } %{fmudflapth: --wrap=pthread_create\
521 }} %{fmudflap|fmudflapth: --wrap=main}"
524 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
527 /* When using -fsplit-stack we need to wrap pthread_create, in order
528 to initialize the stack guard. We always use wrapping, rather than
529 shared library ordering, and we keep the wrapper function in
530 libgcc. This is not yet a real spec, though it could become one;
531 it is currently just stuffed into LINK_SPEC. FIXME: This wrapping
532 only works with GNU ld and gold. FIXME: This is incompatible with
533 -fmudflap when linking statically, which wants to do its own
535 #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
537 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
540 #if defined(REAL_LIBGCC_SPEC)
541 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
542 #elif defined(LINK_LIBGCC_SPECIAL_1)
543 /* Have gcc do the search for libgcc.a. */
544 #define LIBGCC_SPEC "libgcc.a%s"
546 #define LIBGCC_SPEC "-lgcc"
550 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
551 #ifndef STARTFILE_SPEC
552 #define STARTFILE_SPEC \
553 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
556 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
558 #define ENDFILE_SPEC ""
562 #define LINKER_NAME "collect2"
565 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
566 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
571 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
573 #ifndef ASM_DEBUG_SPEC
574 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
575 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
576 # define ASM_DEBUG_SPEC \
577 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
578 ? "%{!g0:%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}}" ASM_MAP \
579 : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
581 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
582 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP
584 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
585 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP
589 #ifndef ASM_DEBUG_SPEC
590 # define ASM_DEBUG_SPEC ""
593 /* Here is the spec for running the linker, after compiling all files. */
595 /* This is overridable by the target in case they need to specify the
596 -lgcc and -lc order specially, yet not require them to override all
597 of LINK_COMMAND_SPEC. */
598 #ifndef LINK_GCC_C_SEQUENCE_SPEC
599 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
602 #ifndef LINK_SSP_SPEC
603 #ifdef TARGET_LIBC_PROVIDES_SSP
604 #define LINK_SSP_SPEC "%{fstack-protector:}"
606 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
610 #ifndef LINK_PIE_SPEC
612 #define LINK_PIE_SPEC "%{pie:-pie} "
614 #define LINK_PIE_SPEC "%{pie:} "
618 #ifndef LINK_BUILDID_SPEC
619 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
620 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
624 /* Conditional to test whether plugin is used or not.
625 FIXME: For slim LTO we will need to enable plugin unconditionally. This
626 still cause problems with PLUGIN_LD != LD and when plugin is built but
627 not useable. For GCC 4.6 we don't support slim LTO and thus we can enable
628 plugin only when LTO is enabled. We still honor explicit
629 -fuse-linker-plugin. */
630 #ifdef HAVE_LTO_PLUGIN
631 #define PLUGIN_COND "!fno-use-linker-plugin:%{flto|flto=*|fuse-linker-plugin"
632 #define PLUGIN_COND_CLOSE "}"
634 #define PLUGIN_COND "fuse-linker-plugin"
635 #define PLUGIN_COND_CLOSE ""
639 /* -u* was put back because both BSD and SysV seem to support it. */
640 /* %{static:} simply prevents an error message if the target machine
641 doesn't handle -static. */
642 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
643 scripts which exist in user specified directories, or in standard
645 /* We pass any -flto flags on to the linker, which is expected
646 to understand them. In practice, this means it had better be collect2. */
647 /* %{e*} includes -export-dynamic; see comment in common.opt. */
648 #ifndef LINK_COMMAND_SPEC
649 #define LINK_COMMAND_SPEC "\
650 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
653 -plugin %(linker_plugin_file) \
654 -plugin-opt=%(lto_wrapper) \
655 -plugin-opt=-fresolution=%u.res \
656 %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \
657 }"PLUGIN_COND_CLOSE" \
658 %{flto|flto=*:%<fcompare-debug*} \
659 %{flto} %{flto=*} %l " LINK_PIE_SPEC \
660 "%X %{o*} %{e*} %{N} %{n} %{r}\
661 %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}}\
662 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
663 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}\
664 %(mflib) " STACK_SPLIT_SPEC "\
665 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\
666 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
667 %{!nostdlib:%{!nostartfiles:%E}} %{T*} }}}}}}"
670 #ifndef LINK_LIBGCC_SPEC
671 /* Generate -L options for startfile prefix list. */
672 # define LINK_LIBGCC_SPEC "%D"
675 #ifndef STARTFILE_PREFIX_SPEC
676 # define STARTFILE_PREFIX_SPEC ""
680 # define SYSROOT_SPEC "--sysroot=%R"
683 #ifndef SYSROOT_SUFFIX_SPEC
684 # define SYSROOT_SUFFIX_SPEC ""
687 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
688 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
691 static const char *asm_debug
;
692 static const char *cpp_spec
= CPP_SPEC
;
693 static const char *cc1_spec
= CC1_SPEC
;
694 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
695 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
696 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
697 static const char *asm_spec
= ASM_SPEC
;
698 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
699 static const char *link_spec
= LINK_SPEC
;
700 static const char *lib_spec
= LIB_SPEC
;
701 static const char *mfwrap_spec
= MFWRAP_SPEC
;
702 static const char *mflib_spec
= MFLIB_SPEC
;
703 static const char *link_gomp_spec
= "";
704 static const char *libgcc_spec
= LIBGCC_SPEC
;
705 static const char *endfile_spec
= ENDFILE_SPEC
;
706 static const char *startfile_spec
= STARTFILE_SPEC
;
707 static const char *linker_name_spec
= LINKER_NAME
;
708 static const char *linker_plugin_file_spec
= "";
709 static const char *lto_wrapper_spec
= "";
710 static const char *lto_gcc_spec
= "";
711 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
712 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
713 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
714 static const char *sysroot_spec
= SYSROOT_SPEC
;
715 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
716 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
718 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
719 There should be no need to override these in target dependent files,
720 but we need to copy them to the specs file so that newer versions
721 of the GCC driver can correctly drive older tool chains with the
722 appropriate -B options. */
724 /* When cpplib handles traditional preprocessing, get rid of this, and
725 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
726 that we default the front end language better. */
727 static const char *trad_capable_cpp
=
728 "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}";
730 /* We don't wrap .d files in %W{} since a missing .d file, and
731 therefore no dependency entry, confuses make into thinking a .o
732 file that happens to exist is up-to-date. */
733 static const char *cpp_unique_options
=
734 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
735 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
736 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
737 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
738 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
739 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
740 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
741 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
742 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
743 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
746 /* This contains cpp options which are common with cc1_options and are passed
747 only when preprocessing only to avoid duplication. We pass the cc1 spec
748 options to the preprocessor so that it the cc1 spec may manipulate
749 options used to set target flags. Those special target flags settings may
750 in turn cause preprocessor symbols to be defined specially. */
751 static const char *cpp_options
=
752 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
753 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
754 %{undef} %{save-temps*:-fpch-preprocess}";
756 /* This contains cpp options which are not passed when the preprocessor
757 output will be used by another program. */
758 static const char *cpp_debug_options
= "%{d*}";
760 /* NB: This is shared amongst all front-ends, except for Ada. */
761 static const char *cc1_options
=
762 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
763 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
764 %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\
765 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
766 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
767 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
768 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
769 %{Qn:-fno-ident} %{Qy:} %{-help:--help}\
770 %{-target-help:--target-help}\
771 %{-version:--version}\
772 %{-help=*:--help=%*}\
773 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
774 %{fsyntax-only:-o %j} %{-param*}\
775 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
776 %{coverage:-fprofile-arcs -ftest-coverage}";
778 static const char *asm_options
=
779 "%{-target-help:%:print-asm-header()} "
781 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
782 to the assembler equivalents. */
783 "%{v} %{w:-W} %{I*} "
785 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
787 static const char *invoke_as
=
788 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
790 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
791 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
795 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
796 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
800 /* Some compilers have limits on line lengths, and the multilib_select
801 and/or multilib_matches strings can be very long, so we build them at
803 static struct obstack multilib_obstack
;
804 static const char *multilib_select
;
805 static const char *multilib_matches
;
806 static const char *multilib_defaults
;
807 static const char *multilib_exclusions
;
809 /* Check whether a particular argument is a default argument. */
811 #ifndef MULTILIB_DEFAULTS
812 #define MULTILIB_DEFAULTS { "" }
815 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
817 #ifndef DRIVER_SELF_SPECS
818 #define DRIVER_SELF_SPECS ""
821 /* Adding -fopenmp should imply pthreads. This is particularly important
822 for targets that use different start files and suchlike. */
823 #ifndef GOMP_SELF_SPECS
824 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
827 static const char *const driver_self_specs
[] = {
828 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
829 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
832 #ifndef OPTION_DEFAULT_SPECS
833 #define OPTION_DEFAULT_SPECS { "", "" }
842 static const struct default_spec
843 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
847 struct user_specs
*next
;
848 const char *filename
;
851 static struct user_specs
*user_specs_head
, *user_specs_tail
;
854 /* Record the mapping from file suffixes for compilation specs. */
858 const char *suffix
; /* Use this compiler for input files
859 whose names end in this suffix. */
861 const char *spec
; /* To use this compiler, run this spec. */
863 const char *cpp_spec
; /* If non-NULL, substitute this spec
864 for `%C', rather than the usual
866 const int combinable
; /* If nonzero, compiler can deal with
867 multiple source files at once (IMA). */
868 const int needs_preprocessing
; /* If nonzero, source files need to
869 be run through a preprocessor. */
872 /* Pointer to a vector of `struct compiler' that gives the spec for
873 compiling a file, based on its suffix.
874 A file that does not end in any of these suffixes will be passed
875 unchanged to the loader and nothing else will be done to it.
877 An entry containing two 0s is used to terminate the vector.
879 If multiple entries match a file, the last matching one is used. */
881 static struct compiler
*compilers
;
883 /* Number of entries in `compilers', not counting the null terminator. */
885 static int n_compilers
;
887 /* The default list of file name suffixes and their compilation specs. */
889 static const struct compiler default_compilers
[] =
891 /* Add lists of suffixes of known languages here. If those languages
892 were not present when we built the driver, we will hit these copies
893 and be given a more meaningful error than "file not used since
894 linking is not done". */
895 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
896 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
897 {".mii", "#Objective-C++", 0, 0, 0},
898 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
899 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
900 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
901 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
902 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
903 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
904 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
905 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
906 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
907 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
908 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
909 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
910 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
911 {".r", "#Ratfor", 0, 0, 0},
912 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
913 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
914 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
915 {".go", "#Go", 0, 1, 0},
916 /* Next come the entries for C. */
917 {".c", "@c", 0, 0, 1},
919 /* cc1 has an integrated ISO C preprocessor. We should invoke the
920 external preprocessor if -save-temps is given. */
921 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
924 %eGNU C no longer supports -traditional without -E}\
925 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
926 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
927 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
929 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
930 cc1 %(cpp_unique_options) %(cc1_options)}}}\
931 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
933 "%{!E:%e-E or -x required when input is from standard input}\
934 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
935 {".h", "@c-header", 0, 0, 0},
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 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
942 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
943 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
945 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
946 %W{o*:--output-pch=%*}}%V}\
947 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
948 cc1 %(cpp_unique_options) %(cc1_options)\
949 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
950 %W{o*:--output-pch=%*}}%V}}}}}}", 0, 0, 0},
951 {".i", "@cpp-output", 0, 0, 0},
953 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
954 {".s", "@assembler", 0, 0, 0},
956 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
957 {".sx", "@assembler-with-cpp", 0, 0, 0},
958 {".S", "@assembler-with-cpp", 0, 0, 0},
959 {"@assembler-with-cpp",
960 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
961 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
962 %{E|M|MM:%(cpp_debug_options)}\
963 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
964 as %(asm_debug) %(asm_options) %|.s %A }}}}"
966 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
967 %{E|M|MM:%(cpp_debug_options)}\
968 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
969 as %(asm_debug) %(asm_options) %m.s %A }}}}"
974 /* Mark end of table. */
978 /* Number of elements in default_compilers, not counting the terminator. */
980 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
982 typedef char *char_p
; /* For DEF_VEC_P. */
984 DEF_VEC_ALLOC_P(char_p
,heap
);
986 /* A vector of options to give to the linker.
987 These options are accumulated by %x,
988 and substituted into the linker command with %X. */
989 static VEC(char_p
,heap
) *linker_options
;
991 /* A vector of options to give to the assembler.
992 These options are accumulated by -Wa,
993 and substituted into the assembler command with %Y. */
994 static VEC(char_p
,heap
) *assembler_options
;
996 /* A vector of options to give to the preprocessor.
997 These options are accumulated by -Wp,
998 and substituted into the preprocessor command with %Z. */
999 static VEC(char_p
,heap
) *preprocessor_options
;
1002 skip_whitespace (char *p
)
1006 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1007 be considered whitespace. */
1008 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1010 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1024 /* Structures to keep track of prefixes to try when looking for files. */
1028 const char *prefix
; /* String to prepend to the path. */
1029 struct prefix_list
*next
; /* Next in linked list. */
1030 int require_machine_suffix
; /* Don't use without machine_suffix. */
1031 /* 2 means try both machine_suffix and just_machine_suffix. */
1032 int priority
; /* Sort key - priority within list. */
1033 int os_multilib
; /* 1 if OS multilib scheme should be used,
1034 0 for GCC multilib scheme. */
1039 struct prefix_list
*plist
; /* List of prefixes to try */
1040 int max_len
; /* Max length of a prefix in PLIST */
1041 const char *name
; /* Name of this list (used in config stuff) */
1044 /* List of prefixes to try when looking for executables. */
1046 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1048 /* List of prefixes to try when looking for startup (crt0) files. */
1050 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1052 /* List of prefixes to try when looking for include files. */
1054 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1056 /* Suffix to attach to directories searched for commands.
1057 This looks like `MACHINE/VERSION/'. */
1059 static const char *machine_suffix
= 0;
1061 /* Suffix to attach to directories searched for commands.
1062 This is just `MACHINE/'. */
1064 static const char *just_machine_suffix
= 0;
1066 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1068 static const char *gcc_exec_prefix
;
1070 /* Adjusted value of standard_libexec_prefix. */
1072 static const char *gcc_libexec_prefix
;
1074 /* Default prefixes to attach to command names. */
1076 #ifndef STANDARD_STARTFILE_PREFIX_1
1077 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1079 #ifndef STANDARD_STARTFILE_PREFIX_2
1080 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1083 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1084 #undef MD_EXEC_PREFIX
1085 #undef MD_STARTFILE_PREFIX
1086 #undef MD_STARTFILE_PREFIX_1
1089 /* If no prefixes defined, use the null string, which will disable them. */
1090 #ifndef MD_EXEC_PREFIX
1091 #define MD_EXEC_PREFIX ""
1093 #ifndef MD_STARTFILE_PREFIX
1094 #define MD_STARTFILE_PREFIX ""
1096 #ifndef MD_STARTFILE_PREFIX_1
1097 #define MD_STARTFILE_PREFIX_1 ""
1100 /* These directories are locations set at configure-time based on the
1101 --prefix option provided to configure. Their initializers are
1102 defined in Makefile.in. These paths are not *directly* used when
1103 gcc_exec_prefix is set because, in that case, we know where the
1104 compiler has been installed, and use paths relative to that
1105 location instead. */
1106 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1107 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1108 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1109 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1111 /* For native compilers, these are well-known paths containing
1112 components that may be provided by the system. For cross
1113 compilers, these paths are not used. */
1114 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1115 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1116 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1117 static const char *const standard_startfile_prefix_1
1118 = STANDARD_STARTFILE_PREFIX_1
;
1119 static const char *const standard_startfile_prefix_2
1120 = STANDARD_STARTFILE_PREFIX_2
;
1122 /* A relative path to be used in finding the location of tools
1123 relative to the driver. */
1124 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1126 /* Subdirectory to use for locating libraries. Set by
1127 set_multilib_dir based on the compilation options. */
1129 static const char *multilib_dir
;
1131 /* Subdirectory to use for locating libraries in OS conventions. Set by
1132 set_multilib_dir based on the compilation options. */
1134 static const char *multilib_os_dir
;
1136 /* Structure to keep track of the specs that have been defined so far.
1137 These are accessed using %(specname) or %[specname] in a compiler
1142 /* The following 2 fields must be first */
1143 /* to allow EXTRA_SPECS to be initialized */
1144 const char *name
; /* name of the spec. */
1145 const char *ptr
; /* available ptr if no static pointer */
1147 /* The following fields are not initialized */
1148 /* by EXTRA_SPECS */
1149 const char **ptr_spec
; /* pointer to the spec itself. */
1150 struct spec_list
*next
; /* Next spec in linked list. */
1151 int name_len
; /* length of the name */
1152 int alloc_p
; /* whether string was allocated */
1155 #define INIT_STATIC_SPEC(NAME,PTR) \
1156 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1158 /* List of statically defined specs. */
1159 static struct spec_list static_specs
[] =
1161 INIT_STATIC_SPEC ("asm", &asm_spec
),
1162 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1163 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1164 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1165 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1166 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1167 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1168 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1169 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1170 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1171 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1172 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1173 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1174 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1175 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1176 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1177 INIT_STATIC_SPEC ("link", &link_spec
),
1178 INIT_STATIC_SPEC ("lib", &lib_spec
),
1179 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1180 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1181 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1182 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1183 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1184 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1185 INIT_STATIC_SPEC ("version", &compiler_version
),
1186 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1187 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1188 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1189 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1190 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1191 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1192 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1193 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1194 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1195 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1196 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1197 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1198 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1199 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1200 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1201 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1202 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1203 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1206 #ifdef EXTRA_SPECS /* additional specs needed */
1207 /* Structure to keep track of just the first two args of a spec_list.
1208 That is all that the EXTRA_SPECS macro gives us. */
1211 const char *const name
;
1212 const char *const ptr
;
1215 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1216 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1219 /* List of dynamically allocates specs that have been defined so far. */
1221 static struct spec_list
*specs
= (struct spec_list
*) 0;
1223 /* List of static spec functions. */
1225 static const struct spec_function static_spec_functions
[] =
1227 { "getenv", getenv_spec_function
},
1228 { "if-exists", if_exists_spec_function
},
1229 { "if-exists-else", if_exists_else_spec_function
},
1230 { "replace-outfile", replace_outfile_spec_function
},
1231 { "remove-outfile", remove_outfile_spec_function
},
1232 { "version-compare", version_compare_spec_function
},
1233 { "include", include_spec_function
},
1234 { "find-file", find_file_spec_function
},
1235 { "find-plugindir", find_plugindir_spec_function
},
1236 { "print-asm-header", print_asm_header_spec_function
},
1237 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1238 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1239 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1240 { "pass-through-libs", pass_through_libs_spec_func
},
1241 #ifdef EXTRA_SPEC_FUNCTIONS
1242 EXTRA_SPEC_FUNCTIONS
1247 static int processing_spec_function
;
1249 /* Add appropriate libgcc specs to OBSTACK, taking into account
1250 various permutations of -shared-libgcc, -shared, and such. */
1252 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1254 #ifndef USE_LD_AS_NEEDED
1255 #define USE_LD_AS_NEEDED 0
1259 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1260 const char *static_name
, const char *eh_name
)
1264 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1265 "%{!static:%{!static-libgcc:"
1266 #if USE_LD_AS_NEEDED
1267 "%{!shared-libgcc:",
1268 static_name
, " --as-needed ", shared_name
, " --no-as-needed"
1271 shared_name
, "%{!shared: ", static_name
, "}"
1275 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1276 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1280 "%{shared-libgcc:", shared_name
, "}"
1281 "%{!shared-libgcc:", static_name
, "}"
1284 "%{shared:", shared_name
, "}"
1289 obstack_grow (obstack
, buf
, strlen (buf
));
1292 #endif /* ENABLE_SHARED_LIBGCC */
1294 /* Initialize the specs lookup routines. */
1299 struct spec_list
*next
= (struct spec_list
*) 0;
1300 struct spec_list
*sl
= (struct spec_list
*) 0;
1304 return; /* Already initialized. */
1307 fnotice (stderr
, "Using built-in specs.\n");
1310 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1312 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1314 sl
= &extra_specs
[i
];
1315 sl
->name
= extra_specs_1
[i
].name
;
1316 sl
->ptr
= extra_specs_1
[i
].ptr
;
1318 sl
->name_len
= strlen (sl
->name
);
1319 sl
->ptr_spec
= &sl
->ptr
;
1324 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1326 sl
= &static_specs
[i
];
1331 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1332 /* ??? If neither -shared-libgcc nor --static-libgcc was
1333 seen, then we should be making an educated guess. Some proposed
1334 heuristics for ELF include:
1336 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1337 program will be doing dynamic loading, which will likely
1338 need the shared libgcc.
1340 (2) If "-ldl", then it's also a fair bet that we're doing
1343 (3) For each ET_DYN we're linking against (either through -lfoo
1344 or /some/path/foo.so), check to see whether it or one of
1345 its dependencies depends on a shared libgcc.
1349 If the runtime is fixed to look for program headers instead
1350 of calling __register_frame_info at all, for each object,
1351 use the shared libgcc if any EH symbol referenced.
1353 If crtstuff is fixed to not invoke __register_frame_info
1354 automatically, for each object, use the shared libgcc if
1355 any non-empty unwind section found.
1357 Doing any of this probably requires invoking an external program to
1358 do the actual object file scanning. */
1360 const char *p
= libgcc_spec
;
1363 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1364 when given the proper command line arguments. */
1367 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1369 init_gcc_specs (&obstack
,
1371 #ifdef USE_LIBUNWIND_EXCEPTIONS
1377 #ifdef USE_LIBUNWIND_EXCEPTIONS
1378 # ifdef HAVE_LD_STATIC_DYNAMIC
1379 " %{!static:" LD_STATIC_OPTION
"} -lunwind"
1380 " %{!static:" LD_DYNAMIC_OPTION
"}"
1390 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1392 /* Ug. We don't know shared library extensions. Hope that
1393 systems that use this form don't do shared libraries. */
1394 init_gcc_specs (&obstack
,
1398 #ifdef USE_LIBUNWIND_EXCEPTIONS
1407 obstack_1grow (&obstack
, *p
);
1408 in_sep
= (*p
== ' ');
1413 obstack_1grow (&obstack
, '\0');
1414 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1417 #ifdef USE_AS_TRADITIONAL_FORMAT
1418 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1420 static const char tf
[] = "--traditional-format ";
1421 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1422 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1423 asm_spec
= XOBFINISH (&obstack
, const char *);
1427 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC
1428 # ifdef LINK_BUILDID_SPEC
1429 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1430 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof(LINK_BUILDID_SPEC
) - 1);
1432 # ifdef LINK_EH_SPEC
1433 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1434 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1436 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1437 link_spec
= XOBFINISH (&obstack
, const char *);
1443 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1444 removed; If the spec starts with a + then SPEC is added to the end of the
1448 set_spec (const char *name
, const char *spec
)
1450 struct spec_list
*sl
;
1451 const char *old_spec
;
1452 int name_len
= strlen (name
);
1455 /* If this is the first call, initialize the statically allocated specs. */
1458 struct spec_list
*next
= (struct spec_list
*) 0;
1459 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1461 sl
= &static_specs
[i
];
1468 /* See if the spec already exists. */
1469 for (sl
= specs
; sl
; sl
= sl
->next
)
1470 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1475 /* Not found - make it. */
1476 sl
= XNEW (struct spec_list
);
1477 sl
->name
= xstrdup (name
);
1478 sl
->name_len
= name_len
;
1479 sl
->ptr_spec
= &sl
->ptr
;
1481 *(sl
->ptr_spec
) = "";
1486 old_spec
= *(sl
->ptr_spec
);
1487 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1488 ? concat (old_spec
, spec
+ 1, NULL
)
1493 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1496 /* Free the old spec. */
1497 if (old_spec
&& sl
->alloc_p
)
1498 free (CONST_CAST(char *, old_spec
));
1503 /* Accumulate a command (program name and args), and run it. */
1505 typedef const char *const_char_p
; /* For DEF_VEC_P. */
1506 DEF_VEC_P(const_char_p
);
1507 DEF_VEC_ALLOC_P(const_char_p
,heap
);
1509 /* Vector of pointers to arguments in the current line of specifications. */
1511 static VEC(const_char_p
,heap
) *argbuf
;
1513 /* Position in the argbuf vector containing the name of the output file
1514 (the value associated with the "-o" flag). */
1516 static int have_o_argbuf_index
= 0;
1518 /* Were the options -c, -S or -E passed. */
1519 static int have_c
= 0;
1521 /* Was the option -o passed. */
1522 static int have_o
= 0;
1524 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1525 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1528 static struct temp_name
{
1529 const char *suffix
; /* suffix associated with the code. */
1530 int length
; /* strlen (suffix). */
1531 int unique
; /* Indicates whether %g or %u/%U was used. */
1532 const char *filename
; /* associated filename. */
1533 int filename_length
; /* strlen (filename). */
1534 struct temp_name
*next
;
1537 /* Number of commands executed so far. */
1539 static int execution_count
;
1541 /* Number of commands that exited with a signal. */
1543 static int signal_count
;
1545 /* Allocate the argument vector. */
1550 argbuf
= VEC_alloc (const_char_p
, heap
, 10);
1553 /* Clear out the vector of arguments (after a command is executed). */
1558 VEC_truncate (const_char_p
, argbuf
, 0);
1561 /* Add one argument to the vector at the end.
1562 This is done when a space is seen or at the end of the line.
1563 If DELETE_ALWAYS is nonzero, the arg is a filename
1564 and the file should be deleted eventually.
1565 If DELETE_FAILURE is nonzero, the arg is a filename
1566 and the file should be deleted if this compilation fails. */
1569 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1571 VEC_safe_push (const_char_p
, heap
, argbuf
, arg
);
1573 if (strcmp (arg
, "-o") == 0)
1574 have_o_argbuf_index
= VEC_length (const_char_p
, argbuf
);
1575 if (delete_always
|| delete_failure
)
1578 /* If the temporary file we should delete is specified as
1579 part of a joined argument extract the filename. */
1581 && (p
= strrchr (arg
, '=')))
1583 record_temp_file (arg
, delete_always
, delete_failure
);
1587 /* Load specs from a file name named FILENAME, replacing occurrences of
1588 various different types of line-endings, \r\n, \n\r and just \r, with
1592 load_specs (const char *filename
)
1596 struct stat statbuf
;
1603 fnotice (stderr
, "Reading specs from %s\n", filename
);
1605 /* Open and stat the file. */
1606 desc
= open (filename
, O_RDONLY
, 0);
1608 pfatal_with_name (filename
);
1609 if (stat (filename
, &statbuf
) < 0)
1610 pfatal_with_name (filename
);
1612 /* Read contents of file into BUFFER. */
1613 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
1614 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1616 pfatal_with_name (filename
);
1617 buffer
[readlen
] = 0;
1620 specs
= XNEWVEC (char, readlen
+ 1);
1622 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1628 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1630 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1644 /* Read compilation specs from a file named FILENAME,
1645 replacing the default ones.
1647 A suffix which starts with `*' is a definition for
1648 one of the machine-specific sub-specs. The "suffix" should be
1649 *asm, *cc1, *cpp, *link, *startfile, etc.
1650 The corresponding spec is stored in asm_spec, etc.,
1651 rather than in the `compilers' vector.
1653 Anything invalid in the file is a fatal error. */
1656 read_specs (const char *filename
, int main_p
)
1661 buffer
= load_specs (filename
);
1663 /* Scan BUFFER for specs, putting them in the vector. */
1669 char *in
, *out
, *p1
, *p2
, *p3
;
1671 /* Advance P in BUFFER to the next nonblank nocomment line. */
1672 p
= skip_whitespace (p
);
1676 /* Is this a special command that starts with '%'? */
1677 /* Don't allow this for the main specs file, since it would
1678 encourage people to overwrite it. */
1679 if (*p
== '%' && !main_p
)
1682 while (*p
&& *p
!= '\n')
1688 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1689 && (p1
[sizeof "%include" - 1] == ' '
1690 || p1
[sizeof "%include" - 1] == '\t'))
1694 p1
+= sizeof ("%include");
1695 while (*p1
== ' ' || *p1
== '\t')
1698 if (*p1
++ != '<' || p
[-2] != '>')
1699 fatal_error ("specs %%include syntax malformed after "
1701 (long) (p1
- buffer
+ 1));
1704 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1705 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1708 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1709 && (p1
[sizeof "%include_noerr" - 1] == ' '
1710 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1714 p1
+= sizeof "%include_noerr";
1715 while (*p1
== ' ' || *p1
== '\t')
1718 if (*p1
++ != '<' || p
[-2] != '>')
1719 fatal_error ("specs %%include syntax malformed after "
1721 (long) (p1
- buffer
+ 1));
1724 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1726 read_specs (new_filename
, FALSE
);
1727 else if (verbose_flag
)
1728 fnotice (stderr
, "could not find specs file %s\n", p1
);
1731 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1732 && (p1
[sizeof "%rename" - 1] == ' '
1733 || p1
[sizeof "%rename" - 1] == '\t'))
1736 struct spec_list
*sl
;
1737 struct spec_list
*newsl
;
1739 /* Get original name. */
1740 p1
+= sizeof "%rename";
1741 while (*p1
== ' ' || *p1
== '\t')
1744 if (! ISALPHA ((unsigned char) *p1
))
1745 fatal_error ("specs %%rename syntax malformed after "
1747 (long) (p1
- buffer
));
1750 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1753 if (*p2
!= ' ' && *p2
!= '\t')
1754 fatal_error ("specs %%rename syntax malformed after "
1756 (long) (p2
- buffer
));
1760 while (*p2
== ' ' || *p2
== '\t')
1763 if (! ISALPHA ((unsigned char) *p2
))
1764 fatal_error ("specs %%rename syntax malformed after "
1766 (long) (p2
- buffer
));
1768 /* Get new spec name. */
1770 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
1774 fatal_error ("specs %%rename syntax malformed after "
1776 (long) (p3
- buffer
));
1779 for (sl
= specs
; sl
; sl
= sl
->next
)
1780 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1784 fatal_error ("specs %s spec was not found to be renamed", p1
);
1786 if (strcmp (p1
, p2
) == 0)
1789 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
1790 if (strcmp (newsl
->name
, p2
) == 0)
1791 fatal_error ("%s: attempt to rename spec %qs to "
1792 "already defined spec %qs",
1797 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
1799 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
1803 set_spec (p2
, *(sl
->ptr_spec
));
1805 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
1807 *(sl
->ptr_spec
) = "";
1812 fatal_error ("specs unknown %% command after %ld characters",
1813 (long) (p1
- buffer
));
1816 /* Find the colon that should end the suffix. */
1818 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1821 /* The colon shouldn't be missing. */
1823 fatal_error ("specs file malformed after %ld characters",
1824 (long) (p1
- buffer
));
1826 /* Skip back over trailing whitespace. */
1828 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1831 /* Copy the suffix to a string. */
1832 suffix
= save_string (p
, p2
- p
);
1833 /* Find the next line. */
1834 p
= skip_whitespace (p1
+ 1);
1836 fatal_error ("specs file malformed after %ld characters",
1837 (long) (p
- buffer
));
1840 /* Find next blank line or end of string. */
1841 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1844 /* Specs end at the blank line and do not include the newline. */
1845 spec
= save_string (p
, p1
- p
);
1848 /* Delete backslash-newline sequences from the spec. */
1853 if (in
[0] == '\\' && in
[1] == '\n')
1855 else if (in
[0] == '#')
1856 while (*in
&& *in
!= '\n')
1864 if (suffix
[0] == '*')
1866 if (! strcmp (suffix
, "*link_command"))
1867 link_command_spec
= spec
;
1869 set_spec (suffix
+ 1, spec
);
1873 /* Add this pair to the vector. */
1875 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
1877 compilers
[n_compilers
].suffix
= suffix
;
1878 compilers
[n_compilers
].spec
= spec
;
1880 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
1884 link_command_spec
= spec
;
1887 if (link_command_spec
== 0)
1888 fatal_error ("spec file has no spec for linking");
1891 /* Record the names of temporary files we tell compilers to write,
1892 and delete them at the end of the run. */
1894 /* This is the common prefix we use to make temp file names.
1895 It is chosen once for each run of this program.
1896 It is substituted into a spec by %g or %j.
1897 Thus, all temp file names contain this prefix.
1898 In practice, all temp file names start with this prefix.
1900 This prefix comes from the envvar TMPDIR if it is defined;
1901 otherwise, from the P_tmpdir macro if that is defined;
1902 otherwise, in /usr/tmp or /tmp;
1903 or finally the current directory if all else fails. */
1905 static const char *temp_filename
;
1907 /* Length of the prefix. */
1909 static int temp_filename_length
;
1911 /* Define the list of temporary files to delete. */
1916 struct temp_file
*next
;
1919 /* Queue of files to delete on success or failure of compilation. */
1920 static struct temp_file
*always_delete_queue
;
1921 /* Queue of files to delete on failure of compilation. */
1922 static struct temp_file
*failure_delete_queue
;
1924 /* Record FILENAME as a file to be deleted automatically.
1925 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1926 otherwise delete it in any case.
1927 FAIL_DELETE nonzero means delete it if a compilation step fails;
1928 otherwise delete it in any case. */
1931 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
1933 char *const name
= xstrdup (filename
);
1937 struct temp_file
*temp
;
1938 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1939 if (! strcmp (name
, temp
->name
))
1942 temp
= XNEW (struct temp_file
);
1943 temp
->next
= always_delete_queue
;
1945 always_delete_queue
= temp
;
1952 struct temp_file
*temp
;
1953 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1954 if (! strcmp (name
, temp
->name
))
1957 temp
= XNEW (struct temp_file
);
1958 temp
->next
= failure_delete_queue
;
1960 failure_delete_queue
= temp
;
1966 /* Delete all the temporary files whose names we previously recorded. */
1968 #ifndef DELETE_IF_ORDINARY
1969 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
1972 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
1973 if (unlink (NAME) < 0) \
1975 perror_with_name (NAME); \
1980 delete_if_ordinary (const char *name
)
1986 printf ("Delete %s? (y or n) ", name
);
1990 while ((c
= getchar ()) != '\n' && c
!= EOF
)
1993 if (i
== 'y' || i
== 'Y')
1995 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
1999 delete_temp_files (void)
2001 struct temp_file
*temp
;
2003 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2004 delete_if_ordinary (temp
->name
);
2005 always_delete_queue
= 0;
2008 /* Delete all the files to be deleted on error. */
2011 delete_failure_queue (void)
2013 struct temp_file
*temp
;
2015 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2016 delete_if_ordinary (temp
->name
);
2020 clear_failure_queue (void)
2022 failure_delete_queue
= 0;
2025 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2027 If DO_MULTI is true iterate over the paths twice, first with multilib
2028 suffix then without, otherwise iterate over the paths once without
2029 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2030 to avoid visiting the same path twice, but we could do better. For
2031 instance, /usr/lib/../lib is considered different from /usr/lib.
2032 At least EXTRA_SPACE chars past the end of the path passed to
2033 CALLBACK are available for use by the callback.
2034 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2036 Returns the value returned by CALLBACK. */
2039 for_each_path (const struct path_prefix
*paths
,
2042 void *(*callback
) (char *, void *),
2043 void *callback_info
)
2045 struct prefix_list
*pl
;
2046 const char *multi_dir
= NULL
;
2047 const char *multi_os_dir
= NULL
;
2048 const char *multi_suffix
;
2049 const char *just_multi_suffix
;
2052 bool skip_multi_dir
= false;
2053 bool skip_multi_os_dir
= false;
2055 multi_suffix
= machine_suffix
;
2056 just_multi_suffix
= just_machine_suffix
;
2057 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2059 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2060 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2061 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2063 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2064 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2068 size_t multi_dir_len
= 0;
2069 size_t multi_os_dir_len
= 0;
2071 size_t just_suffix_len
;
2075 multi_dir_len
= strlen (multi_dir
);
2077 multi_os_dir_len
= strlen (multi_os_dir
);
2078 suffix_len
= strlen (multi_suffix
);
2079 just_suffix_len
= strlen (just_multi_suffix
);
2083 len
= paths
->max_len
+ extra_space
+ 1;
2084 if (suffix_len
> multi_os_dir_len
)
2087 len
+= multi_os_dir_len
;
2088 path
= XNEWVEC (char, len
);
2091 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2093 len
= strlen (pl
->prefix
);
2094 memcpy (path
, pl
->prefix
, len
);
2096 /* Look first in MACHINE/VERSION subdirectory. */
2097 if (!skip_multi_dir
)
2099 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2100 ret
= callback (path
, callback_info
);
2105 /* Some paths are tried with just the machine (ie. target)
2106 subdir. This is used for finding as, ld, etc. */
2108 && pl
->require_machine_suffix
== 2)
2110 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2111 ret
= callback (path
, callback_info
);
2116 /* Now try the base path. */
2117 if (!pl
->require_machine_suffix
2118 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2120 const char *this_multi
;
2121 size_t this_multi_len
;
2123 if (pl
->os_multilib
)
2125 this_multi
= multi_os_dir
;
2126 this_multi_len
= multi_os_dir_len
;
2130 this_multi
= multi_dir
;
2131 this_multi_len
= multi_dir_len
;
2135 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2139 ret
= callback (path
, callback_info
);
2147 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2150 /* Run through the paths again, this time without multilibs.
2151 Don't repeat any we have already seen. */
2154 free (CONST_CAST (char *, multi_dir
));
2156 free (CONST_CAST (char *, multi_suffix
));
2157 multi_suffix
= machine_suffix
;
2158 free (CONST_CAST (char *, just_multi_suffix
));
2159 just_multi_suffix
= just_machine_suffix
;
2162 skip_multi_dir
= true;
2165 free (CONST_CAST (char *, multi_os_dir
));
2166 multi_os_dir
= NULL
;
2169 skip_multi_os_dir
= true;
2174 free (CONST_CAST (char *, multi_dir
));
2175 free (CONST_CAST (char *, multi_suffix
));
2176 free (CONST_CAST (char *, just_multi_suffix
));
2179 free (CONST_CAST (char *, multi_os_dir
));
2185 /* Callback for build_search_list. Adds path to obstack being built. */
2187 struct add_to_obstack_info
{
2194 add_to_obstack (char *path
, void *data
)
2196 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2198 if (info
->check_dir
&& !is_directory (path
, false))
2201 if (!info
->first_time
)
2202 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2204 obstack_grow (info
->ob
, path
, strlen (path
));
2206 info
->first_time
= false;
2210 /* Add or change the value of an environment variable, outputting the
2211 change to standard error if in verbose mode. */
2213 xputenv (const char *string
)
2216 fnotice (stderr
, "%s\n", string
);
2217 putenv (CONST_CAST (char *, string
));
2220 /* Build a list of search directories from PATHS.
2221 PREFIX is a string to prepend to the list.
2222 If CHECK_DIR_P is true we ensure the directory exists.
2223 If DO_MULTI is true, multilib paths are output first, then
2225 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2226 It is also used by the --print-search-dirs flag. */
2229 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2230 bool check_dir
, bool do_multi
)
2232 struct add_to_obstack_info info
;
2234 info
.ob
= &collect_obstack
;
2235 info
.check_dir
= check_dir
;
2236 info
.first_time
= true;
2238 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2239 obstack_1grow (&collect_obstack
, '=');
2241 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2243 obstack_1grow (&collect_obstack
, '\0');
2244 return XOBFINISH (&collect_obstack
, char *);
2247 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2251 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2254 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2257 /* Check whether NAME can be accessed in MODE. This is like access,
2258 except that it never considers directories to be executable. */
2261 access_check (const char *name
, int mode
)
2267 if (stat (name
, &st
) < 0
2268 || S_ISDIR (st
.st_mode
))
2272 return access (name
, mode
);
2275 /* Callback for find_a_file. Appends the file name to the directory
2276 path. If the resulting file exists in the right mode, return the
2277 full pathname to the file. */
2279 struct file_at_path_info
{
2288 file_at_path (char *path
, void *data
)
2290 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2291 size_t len
= strlen (path
);
2293 memcpy (path
+ len
, info
->name
, info
->name_len
);
2294 len
+= info
->name_len
;
2296 /* Some systems have a suffix for executable files.
2297 So try appending that first. */
2298 if (info
->suffix_len
)
2300 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2301 if (access_check (path
, info
->mode
) == 0)
2306 if (access_check (path
, info
->mode
) == 0)
2312 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2313 access to check permissions. If DO_MULTI is true, search multilib
2314 paths then non-multilib paths, otherwise do not search multilib paths.
2315 Return 0 if not found, otherwise return its name, allocated with malloc. */
2318 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2321 struct file_at_path_info info
;
2323 #ifdef DEFAULT_ASSEMBLER
2324 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2325 return xstrdup (DEFAULT_ASSEMBLER
);
2328 #ifdef DEFAULT_LINKER
2329 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2330 return xstrdup (DEFAULT_LINKER
);
2333 /* Determine the filename to execute (special case for absolute paths). */
2335 if (IS_ABSOLUTE_PATH (name
))
2337 if (access (name
, mode
) == 0)
2338 return xstrdup (name
);
2344 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2345 info
.name_len
= strlen (info
.name
);
2346 info
.suffix_len
= strlen (info
.suffix
);
2349 return (char*) for_each_path (pprefix
, do_multi
,
2350 info
.name_len
+ info
.suffix_len
,
2351 file_at_path
, &info
);
2354 /* Ranking of prefixes in the sort list. -B prefixes are put before
2357 enum path_prefix_priority
2359 PREFIX_PRIORITY_B_OPT
,
2360 PREFIX_PRIORITY_LAST
2363 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2364 order according to PRIORITY. Within each PRIORITY, new entries are
2367 If WARN is nonzero, we will warn if no file is found
2368 through this prefix. WARN should point to an int
2369 which will be set to 1 if this entry is used.
2371 COMPONENT is the value to be passed to update_path.
2373 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2374 the complete value of machine_suffix.
2375 2 means try both machine_suffix and just_machine_suffix. */
2378 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2379 const char *component
, /* enum prefix_priority */ int priority
,
2380 int require_machine_suffix
, int os_multilib
)
2382 struct prefix_list
*pl
, **prev
;
2385 for (prev
= &pprefix
->plist
;
2386 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2387 prev
= &(*prev
)->next
)
2390 /* Keep track of the longest prefix. */
2392 prefix
= update_path (prefix
, component
);
2393 len
= strlen (prefix
);
2394 if (len
> pprefix
->max_len
)
2395 pprefix
->max_len
= len
;
2397 pl
= XNEW (struct prefix_list
);
2398 pl
->prefix
= prefix
;
2399 pl
->require_machine_suffix
= require_machine_suffix
;
2400 pl
->priority
= priority
;
2401 pl
->os_multilib
= os_multilib
;
2403 /* Insert after PREV. */
2408 /* Same as add_prefix, but prepending target_system_root to prefix. */
2409 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2411 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2412 const char *component
,
2413 /* enum prefix_priority */ int priority
,
2414 int require_machine_suffix
, int os_multilib
)
2416 if (!IS_ABSOLUTE_PATH (prefix
))
2417 fatal_error ("system path %qs is not absolute", prefix
);
2419 if (target_system_root
)
2421 if (target_sysroot_suffix
)
2422 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2423 prefix
= concat (target_system_root
, prefix
, NULL
);
2425 /* We have to override this because GCC's notion of sysroot
2426 moves along with GCC. */
2430 add_prefix (pprefix
, prefix
, component
, priority
,
2431 require_machine_suffix
, os_multilib
);
2434 /* Execute the command specified by the arguments on the current line of spec.
2435 When using pipes, this includes several piped-together commands
2436 with `|' between them.
2438 Return 0 if successful, -1 if failed. */
2444 int n_commands
; /* # of command. */
2446 struct pex_obj
*pex
;
2449 const char *prog
; /* program name. */
2450 const char **argv
; /* vector of args. */
2454 struct command
*commands
; /* each command buffer with above info. */
2456 gcc_assert (!processing_spec_function
);
2460 string
= find_a_file (&exec_prefixes
,
2461 VEC_index (const_char_p
, argbuf
, 0), X_OK
, false);
2463 VEC_replace (const_char_p
, argbuf
, 0, string
);
2464 insert_wrapper (wrapper_string
);
2467 /* Count # of piped commands. */
2468 for (n_commands
= 1, i
= 0; VEC_iterate (const_char_p
, argbuf
, i
, arg
); i
++)
2469 if (strcmp (arg
, "|") == 0)
2472 /* Get storage for each command. */
2473 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2475 /* Split argbuf into its separate piped processes,
2476 and record info about each one.
2477 Also search for the programs that are to be run. */
2479 VEC_safe_push (const_char_p
, heap
, argbuf
, 0);
2481 commands
[0].prog
= VEC_index (const_char_p
, argbuf
, 0); /* first command. */
2482 commands
[0].argv
= VEC_address (const_char_p
, argbuf
);
2484 if (!wrapper_string
)
2486 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2487 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2490 for (n_commands
= 1, i
= 0; VEC_iterate (const_char_p
, argbuf
, i
, arg
); i
++)
2491 if (arg
&& strcmp (arg
, "|") == 0)
2492 { /* each command. */
2493 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2494 fatal_error ("-pipe not supported");
2496 VEC_replace (const_char_p
, argbuf
, i
, 0); /* Termination of
2498 commands
[n_commands
].prog
= VEC_index (const_char_p
, argbuf
, i
+ 1);
2499 commands
[n_commands
].argv
2500 = &(VEC_address (const_char_p
, argbuf
))[i
+ 1];
2501 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2504 commands
[n_commands
].argv
[0] = string
;
2508 /* If -v, print what we are about to do, and maybe query. */
2512 /* For help listings, put a blank line between sub-processes. */
2513 if (print_help_list
)
2514 fputc ('\n', stderr
);
2516 /* Print each piped command as a separate line. */
2517 for (i
= 0; i
< n_commands
; i
++)
2519 const char *const *j
;
2521 if (verbose_only_flag
)
2523 for (j
= commands
[i
].argv
; *j
; j
++)
2526 for (p
= *j
; *p
; ++p
)
2527 if (!ISALNUM ((unsigned char) *p
)
2528 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
2532 fprintf (stderr
, " \"");
2533 for (p
= *j
; *p
; ++p
)
2535 if (*p
== '"' || *p
== '\\' || *p
== '$')
2536 fputc ('\\', stderr
);
2539 fputc ('"', stderr
);
2542 fprintf (stderr
, " %s", *j
);
2546 for (j
= commands
[i
].argv
; *j
; j
++)
2547 fprintf (stderr
, " %s", *j
);
2549 /* Print a pipe symbol after all but the last command. */
2550 if (i
+ 1 != n_commands
)
2551 fprintf (stderr
, " |");
2552 fprintf (stderr
, "\n");
2555 if (verbose_only_flag
!= 0)
2557 /* verbose_only_flag should act as if the spec was
2558 executed, so increment execution_count before
2559 returning. This prevents spurious warnings about
2560 unused linker input files, etc. */
2565 fnotice (stderr
, "\nGo ahead? (y or n) ");
2569 while (getchar () != '\n')
2572 if (i
!= 'y' && i
!= 'Y')
2577 #ifdef ENABLE_VALGRIND_CHECKING
2578 /* Run the each command through valgrind. To simplify prepending the
2579 path to valgrind and the option "-q" (for quiet operation unless
2580 something triggers), we allocate a separate argv array. */
2582 for (i
= 0; i
< n_commands
; i
++)
2588 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2591 argv
= XALLOCAVEC (const char *, argc
+ 3);
2593 argv
[0] = VALGRIND_PATH
;
2595 for (j
= 2; j
< argc
+ 2; j
++)
2596 argv
[j
] = commands
[i
].argv
[j
- 2];
2599 commands
[i
].argv
= argv
;
2600 commands
[i
].prog
= argv
[0];
2604 /* Run each piped subprocess. */
2606 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
2607 ? PEX_RECORD_TIMES
: 0),
2608 progname
, temp_filename
);
2610 fatal_error ("pex_init failed: %m");
2612 for (i
= 0; i
< n_commands
; i
++)
2616 const char *string
= commands
[i
].argv
[0];
2618 errmsg
= pex_run (pex
,
2619 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
2620 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
2621 string
, CONST_CAST (char **, commands
[i
].argv
),
2626 fatal_error (errmsg
);
2630 pfatal_with_name (errmsg
);
2634 if (string
!= commands
[i
].prog
)
2635 free (CONST_CAST (char *, string
));
2640 /* Wait for all the subprocesses to finish. */
2644 struct pex_time
*times
= NULL
;
2647 statuses
= (int *) alloca (n_commands
* sizeof (int));
2648 if (!pex_get_status (pex
, n_commands
, statuses
))
2649 fatal_error ("failed to get exit status: %m");
2651 if (report_times
|| report_times_to_file
)
2653 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
2654 if (!pex_get_times (pex
, n_commands
, times
))
2655 fatal_error ("failed to get process times: %m");
2660 for (i
= 0; i
< n_commands
; ++i
)
2662 int status
= statuses
[i
];
2664 if (WIFSIGNALED (status
))
2667 /* SIGPIPE is a special case. It happens in -pipe mode
2668 when the compiler dies before the preprocessor is done,
2669 or the assembler dies before the compiler is done.
2670 There's generally been an error already, and this is
2671 just fallout. So don't generate another error unless
2672 we would otherwise have succeeded. */
2673 if (WTERMSIG (status
) == SIGPIPE
2674 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2681 internal_error ("%s (program %s)",
2682 strsignal (WTERMSIG (status
)), commands
[i
].prog
);
2684 else if (WIFEXITED (status
)
2685 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2687 if (WEXITSTATUS (status
) > greatest_status
)
2688 greatest_status
= WEXITSTATUS (status
);
2692 if (report_times
|| report_times_to_file
)
2694 struct pex_time
*pt
= ×
[i
];
2697 ut
= ((double) pt
->user_seconds
2698 + (double) pt
->user_microseconds
/ 1.0e6
);
2699 st
= ((double) pt
->system_seconds
2700 + (double) pt
->system_microseconds
/ 1.0e6
);
2705 fnotice (stderr
, "# %s %.2f %.2f\n",
2706 commands
[i
].prog
, ut
, st
);
2708 if (report_times_to_file
)
2711 const char *const *j
;
2713 fprintf (report_times_to_file
, "%g %g", ut
, st
);
2715 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
2718 for (p
= *j
; *p
; ++p
)
2719 if (*p
== '"' || *p
== '\\' || *p
== '$'
2725 fprintf (report_times_to_file
, " \"");
2726 for (p
= *j
; *p
; ++p
)
2728 if (*p
== '"' || *p
== '\\' || *p
== '$')
2729 fputc ('\\', report_times_to_file
);
2730 fputc (*p
, report_times_to_file
);
2732 fputc ('"', report_times_to_file
);
2735 fprintf (report_times_to_file
, " %s", *j
);
2738 fputc ('\n', report_times_to_file
);
2748 /* Find all the switches given to us
2749 and make a vector describing them.
2750 The elements of the vector are strings, one per switch given.
2751 If a switch uses following arguments, then the `part1' field
2752 is the switch itself and the `args' field
2753 is a null-terminated vector containing the following arguments.
2754 Bits in the `live_cond' field are:
2755 SWITCH_LIVE to indicate this switch is true in a conditional spec.
2756 SWITCH_FALSE to indicate this switch is overridden by a later switch.
2757 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
2758 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored
2759 in all do_spec calls afterwards. Used for %<S from self specs.
2760 The `validated' field is nonzero if any spec has looked at this switch;
2761 if it remains zero at the end of the run, it must be meaningless. */
2763 #define SWITCH_LIVE (1 << 0)
2764 #define SWITCH_FALSE (1 << 1)
2765 #define SWITCH_IGNORE (1 << 2)
2766 #define SWITCH_IGNORE_PERMANENTLY (1 << 3)
2767 #define SWITCH_KEEP_FOR_GCC (1 << 4)
2773 unsigned int live_cond
;
2774 unsigned char validated
;
2775 unsigned char ordering
;
2778 static struct switchstr
*switches
;
2780 static int n_switches
;
2782 static int n_switches_alloc
;
2784 /* Set to zero if -fcompare-debug is disabled, positive if it's
2785 enabled and we're running the first compilation, negative if it's
2786 enabled and we're running the second compilation. For most of the
2787 time, it's in the range -1..1, but it can be temporarily set to 2
2788 or 3 to indicate that the -fcompare-debug flags didn't come from
2789 the command-line, but rather from the GCC_COMPARE_DEBUG environment
2790 variable, until a synthesized -fcompare-debug flag is added to the
2794 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
2795 int compare_debug_second
;
2797 /* Set to the flags that should be passed to the second compilation in
2798 a -fcompare-debug compilation. */
2799 const char *compare_debug_opt
;
2801 static struct switchstr
*switches_debug_check
[2];
2803 static int n_switches_debug_check
[2];
2805 static int n_switches_alloc_debug_check
[2];
2807 static char *debug_check_temp_file
[2];
2809 /* Language is one of three things:
2811 1) The name of a real programming language.
2812 2) NULL, indicating that no one has figured out
2814 3) '*', indicating that the file should be passed
2819 const char *language
;
2820 struct compiler
*incompiler
;
2825 /* Also a vector of input files specified. */
2827 static struct infile
*infiles
;
2831 static int n_infiles_alloc
;
2833 /* True if multiple input files are being compiled to a single
2836 static bool combine_inputs
;
2838 /* This counts the number of libraries added by lang_specific_driver, so that
2839 we can tell if there were any user supplied any files or libraries. */
2841 static int added_libraries
;
2843 /* And a vector of corresponding output files is made up later. */
2845 const char **outfiles
;
2847 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2849 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2850 is true if we should look for an executable suffix. DO_OBJ
2851 is true if we should look for an object suffix. */
2854 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
2855 int do_obj ATTRIBUTE_UNUSED
)
2857 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2865 len
= strlen (name
);
2867 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2868 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2869 if (do_obj
&& len
> 2
2870 && name
[len
- 2] == '.'
2871 && name
[len
- 1] == 'o')
2873 obstack_grow (&obstack
, name
, len
- 2);
2874 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
2875 name
= XOBFINISH (&obstack
, const char *);
2879 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2880 /* If there is no filetype, make it the executable suffix (which includes
2881 the "."). But don't get confused if we have just "-o". */
2882 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2885 for (i
= len
- 1; i
>= 0; i
--)
2886 if (IS_DIR_SEPARATOR (name
[i
]))
2889 for (i
++; i
< len
; i
++)
2893 obstack_grow (&obstack
, name
, len
);
2894 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
2895 strlen (TARGET_EXECUTABLE_SUFFIX
));
2896 name
= XOBFINISH (&obstack
, const char *);
2903 /* Display the command line switches accepted by gcc. */
2907 printf (_("Usage: %s [options] file...\n"), progname
);
2908 fputs (_("Options:\n"), stdout
);
2910 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
2911 fputs (_(" --help Display this information\n"), stdout
);
2912 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
2913 fputs (_(" --help={target|optimizers|warnings|params|[^]{joined|separate|undocumented}}[,...]\n"), stdout
);
2914 fputs (_(" Display specific types of command line options\n"), stdout
);
2916 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
2917 fputs (_(" --version Display compiler version information\n"), stdout
);
2918 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
2919 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
2920 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
2921 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
2922 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
2923 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
2924 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
2925 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
2927 -print-multi-lib Display the mapping between command line options and\n\
2928 multiple library search directories\n"), stdout
);
2929 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
2930 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout
);
2931 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
2932 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
2933 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
2934 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
2935 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
2936 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
2937 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
2938 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
2939 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout
);
2941 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
2942 prefixes to other gcc components\n"), stdout
);
2943 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
2944 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
2945 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
2946 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
2948 --sysroot=<directory> Use <directory> as the root directory for headers\n\
2949 and libraries\n"), stdout
);
2950 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
2951 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
2952 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
2953 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
2954 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
2955 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
2956 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
2958 -x <language> Specify the language of the following input files\n\
2959 Permissible languages include: c c++ assembler none\n\
2960 'none' means revert to the default behavior of\n\
2961 guessing the language based on the file's extension\n\
2965 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
2966 passed on to the various sub-processes invoked by %s. In order to pass\n\
2967 other options on to these processes the -W<letter> options must be used.\n\
2970 /* The rest of the options are displayed by invocations of the various
2975 add_preprocessor_option (const char *option
, int len
)
2977 VEC_safe_push (char_p
, heap
, preprocessor_options
,
2978 save_string (option
, len
));
2982 add_assembler_option (const char *option
, int len
)
2984 VEC_safe_push (char_p
, heap
, assembler_options
, save_string (option
, len
));
2988 add_linker_option (const char *option
, int len
)
2990 VEC_safe_push (char_p
, heap
, linker_options
, save_string (option
, len
));
2993 /* Allocate space for an input file in infiles. */
2998 if (n_infiles_alloc
== 0)
3000 n_infiles_alloc
= 16;
3001 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3003 else if (n_infiles_alloc
== n_infiles
)
3005 n_infiles_alloc
*= 2;
3006 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3010 /* Store an input file with the given NAME and LANGUAGE in
3014 add_infile (const char *name
, const char *language
)
3017 infiles
[n_infiles
].name
= name
;
3018 infiles
[n_infiles
++].language
= language
;
3021 /* Allocate space for a switch in switches. */
3026 if (n_switches_alloc
== 0)
3028 n_switches_alloc
= 16;
3029 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3031 else if (n_switches_alloc
== n_switches
)
3033 n_switches_alloc
*= 2;
3034 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3038 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3039 as validated if VALIDATED. */
3042 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3046 switches
[n_switches
].part1
= opt
+ 1;
3048 switches
[n_switches
].args
= 0;
3051 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3052 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3053 switches
[n_switches
].args
[n_args
] = NULL
;
3056 switches
[n_switches
].live_cond
= 0;
3057 switches
[n_switches
].validated
= validated
;
3058 switches
[n_switches
].ordering
= 0;
3062 /* Handle an option DECODED that is unknown to the option-processing
3063 machinery, but may be known to specs. */
3066 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3068 save_switch (decoded
->canonical_option
[0],
3069 decoded
->canonical_option_num_elements
- 1,
3070 &decoded
->canonical_option
[1], false);
3075 /* Handle an option DECODED that is not marked as CL_DRIVER.
3076 LANG_MASK will always be CL_DRIVER. */
3079 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3080 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3082 /* At this point, non-driver options are accepted (and expected to
3083 be passed down by specs) unless marked to be rejected by the
3084 driver. Options to be rejected by the driver but accepted by the
3085 compilers proper are treated just like completely unknown
3087 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3089 if (option
->flags
& CL_REJECT_DRIVER
)
3090 error ("unrecognized command line option %qs",
3091 decoded
->orig_option_with_args_text
);
3093 driver_unknown_option_callback (decoded
);
3096 /* Note that an option (index OPT_INDEX, argument ARG, value VALUE)
3097 has been successfully handled with a handler for mask MASK. */
3100 driver_post_handling_callback (const struct cl_decoded_option
*decoded ATTRIBUTE_UNUSED
,
3101 unsigned int mask ATTRIBUTE_UNUSED
)
3103 /* Nothing to do here. */
3106 static const char *spec_lang
= 0;
3107 static int last_language_n_infiles
;
3109 /* Handle a driver option; arguments and return value as for
3113 driver_handle_option (struct gcc_options
*opts
,
3114 struct gcc_options
*opts_set
,
3115 const struct cl_decoded_option
*decoded
,
3116 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
3118 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
,
3119 diagnostic_context
*dc
)
3121 size_t opt_index
= decoded
->opt_index
;
3122 const char *arg
= decoded
->arg
;
3123 const char *compare_debug_replacement_opt
;
3124 int value
= decoded
->value
;
3125 bool validated
= false;
3126 bool do_save
= true;
3128 gcc_assert (opts
== &global_options
);
3129 gcc_assert (opts_set
== &global_options_set
);
3130 gcc_assert (kind
== DK_UNSPECIFIED
);
3131 gcc_assert (loc
== UNKNOWN_LOCATION
);
3132 gcc_assert (dc
== global_dc
);
3138 struct spec_list
*sl
;
3140 for (sl
= specs
; sl
; sl
= sl
->next
)
3141 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3142 if (link_command_spec
)
3143 printf ("*link_command:\n%s\n\n", link_command_spec
);
3147 case OPT_dumpversion
:
3148 printf ("%s\n", spec_version
);
3151 case OPT_dumpmachine
:
3152 printf ("%s\n", spec_machine
);
3158 /* CPP driver cannot obtain switch from cc1_options. */
3160 add_preprocessor_option ("--version", strlen ("--version"));
3161 add_assembler_option ("--version", strlen ("--version"));
3162 add_linker_option ("--version", strlen ("--version"));
3166 print_help_list
= 1;
3168 /* CPP driver cannot obtain switch from cc1_options. */
3170 add_preprocessor_option ("--help", 6);
3171 add_assembler_option ("--help", 6);
3172 add_linker_option ("--help", 6);
3176 print_subprocess_help
= 2;
3179 case OPT__target_help
:
3180 print_subprocess_help
= 1;
3182 /* CPP driver cannot obtain switch from cc1_options. */
3184 add_preprocessor_option ("--target-help", 13);
3185 add_assembler_option ("--target-help", 13);
3186 add_linker_option ("--target-help", 13);
3189 case OPT_pass_exit_codes
:
3190 case OPT_print_search_dirs
:
3191 case OPT_print_file_name_
:
3192 case OPT_print_prog_name_
:
3193 case OPT_print_multi_lib
:
3194 case OPT_print_multi_directory
:
3195 case OPT_print_sysroot
:
3196 case OPT_print_multi_os_directory
:
3197 case OPT_print_sysroot_headers_suffix
:
3200 /* These options set the variables specified in common.opt
3201 automatically, and do not need to be saved for spec
3206 case OPT_print_libgcc_file_name
:
3207 print_file_name
= "libgcc.a";
3211 case OPT_fcompare_debug_second
:
3212 compare_debug_second
= 1;
3215 case OPT_fcompare_debug
:
3219 compare_debug_replacement_opt
= "-fcompare-debug=";
3221 goto compare_debug_with_arg
;
3224 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
3226 goto compare_debug_with_arg
;
3233 case OPT_fcompare_debug_
:
3234 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
3235 compare_debug_with_arg
:
3236 gcc_assert (decoded
->canonical_option_num_elements
== 1);
3237 gcc_assert (arg
!= NULL
);
3242 if (compare_debug
< 0)
3243 compare_debug_opt
= NULL
;
3245 compare_debug_opt
= arg
;
3246 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
);
3252 /* Pass the rest of this option to the assembler. */
3254 /* Split the argument at commas. */
3256 for (j
= 0; arg
[j
]; j
++)
3259 add_assembler_option (arg
+ prev
, j
- prev
);
3263 /* Record the part after the last comma. */
3264 add_assembler_option (arg
+ prev
, j
- prev
);
3272 /* Pass the rest of this option to the preprocessor. */
3274 /* Split the argument at commas. */
3276 for (j
= 0; arg
[j
]; j
++)
3279 add_preprocessor_option (arg
+ prev
, j
- prev
);
3283 /* Record the part after the last comma. */
3284 add_preprocessor_option (arg
+ prev
, j
- prev
);
3292 /* Split the argument at commas. */
3294 for (j
= 0; arg
[j
]; j
++)
3297 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
3300 /* Record the part after the last comma. */
3301 add_infile (arg
+ prev
, "*");
3307 add_infile (arg
, "*");
3311 case OPT_Xpreprocessor
:
3312 add_preprocessor_option (arg
, strlen (arg
));
3316 case OPT_Xassembler
:
3317 add_assembler_option (arg
, strlen (arg
));
3322 /* POSIX allows separation of -l and the lib arg; canonicalize
3323 by concatenating -l with its arg */
3324 add_infile (concat ("-l", arg
, NULL
), "*");
3329 /* Similarly, canonicalize -L for linkers that may not accept
3330 separate arguments. */
3331 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
);
3336 save_switch (concat ("-F", arg
, NULL
), 0, NULL
, validated
);
3339 case OPT_save_temps
:
3340 save_temps_flag
= SAVE_TEMPS_CWD
;
3344 case OPT_save_temps_
:
3345 if (strcmp (arg
, "cwd") == 0)
3346 save_temps_flag
= SAVE_TEMPS_CWD
;
3347 else if (strcmp (arg
, "obj") == 0
3348 || strcmp (arg
, "object") == 0)
3349 save_temps_flag
= SAVE_TEMPS_OBJ
;
3351 fatal_error ("%qs is an unknown -save-temps option",
3352 decoded
->orig_option_with_args_text
);
3355 case OPT_no_canonical_prefixes
:
3356 /* Already handled as a special case, so ignored here. */
3362 /* These options set the variables specified in common.opt
3363 automatically, but do need to be saved for spec
3369 struct user_specs
*user
= XNEW (struct user_specs
);
3371 user
->next
= (struct user_specs
*) 0;
3372 user
->filename
= arg
;
3373 if (user_specs_tail
)
3374 user_specs_tail
->next
= user
;
3376 user_specs_head
= user
;
3377 user_specs_tail
= user
;
3383 target_system_root
= arg
;
3384 target_system_root_changed
= 1;
3389 if (report_times_to_file
)
3390 fclose (report_times_to_file
);
3391 report_times_to_file
= fopen (arg
, "a");
3397 This is similar to -v except that there is no execution
3398 of the commands and the echoed arguments are quoted. It
3399 is intended for use in shell scripts to capture the
3400 driver-generated command line. */
3401 verbose_only_flag
++;
3408 size_t len
= strlen (arg
);
3410 /* Catch the case where the user has forgotten to append a
3411 directory separator to the path. Note, they may be using
3412 -B to add an executable name prefix, eg "i386-elf-", in
3413 order to distinguish between multiple installations of
3414 GCC in the same directory. Hence we must check to see
3415 if appending a directory separator actually makes a
3416 valid directory name. */
3417 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
3418 && is_directory (arg
, false))
3420 char *tmp
= XNEWVEC (char, len
+ 2);
3422 tmp
[len
] = DIR_SEPARATOR
;
3427 add_prefix (&exec_prefixes
, arg
, NULL
,
3428 PREFIX_PRIORITY_B_OPT
, 0, 0);
3429 add_prefix (&startfile_prefixes
, arg
, NULL
,
3430 PREFIX_PRIORITY_B_OPT
, 0, 0);
3431 add_prefix (&include_prefixes
, arg
, NULL
,
3432 PREFIX_PRIORITY_B_OPT
, 0, 0);
3439 if (!strcmp (spec_lang
, "none"))
3440 /* Suppress the warning if -xnone comes after the last input
3441 file, because alternate command interfaces like g++ might
3442 find it useful to place -xnone after each input file. */
3445 last_language_n_infiles
= n_infiles
;
3451 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3452 arg
= convert_filename (arg
, ! have_c
, 0);
3454 /* Save the output name in case -save-temps=obj was used. */
3455 save_temps_prefix
= xstrdup (arg
);
3456 /* On some systems, ld cannot handle "-o" without a space. So
3457 split the option from its argument. */
3458 save_switch ("-o", 1, &arg
, validated
);
3461 case OPT_static_libgcc
:
3462 case OPT_shared_libgcc
:
3463 case OPT_static_libgfortran
:
3464 case OPT_static_libstdc__
:
3465 /* These are always valid, since gcc.c itself understands the
3466 first two, gfortranspec.c understands -static-libgfortran and
3467 g++spec.c understands -static-libstdc++ */
3472 /* Various driver options need no special processing at this
3473 point, having been handled in a prescan above or being
3474 handled by specs. */
3479 save_switch (decoded
->canonical_option
[0],
3480 decoded
->canonical_option_num_elements
- 1,
3481 &decoded
->canonical_option
[1], validated
);
3485 /* Put the driver's standard set of option handlers in *HANDLERS. */
3488 set_option_handlers (struct cl_option_handlers
*handlers
)
3490 handlers
->unknown_option_callback
= driver_unknown_option_callback
;
3491 handlers
->wrong_lang_callback
= driver_wrong_lang_callback
;
3492 handlers
->post_handling_callback
= driver_post_handling_callback
;
3493 handlers
->num_handlers
= 1;
3494 handlers
->handlers
[0].handler
= driver_handle_option
;
3495 handlers
->handlers
[0].mask
= CL_DRIVER
;
3498 /* Create the vector `switches' and its contents.
3499 Store its length in `n_switches'. */
3502 process_command (unsigned int decoded_options_count
,
3503 struct cl_decoded_option
*decoded_options
)
3507 const char *tooldir_prefix
;
3508 char *(*get_relative_prefix
) (const char *, const char *,
3509 const char *) = NULL
;
3510 struct cl_option_handlers handlers
;
3513 gcc_exec_prefix
= getenv ("GCC_EXEC_PREFIX");
3517 added_libraries
= 0;
3519 /* Figure compiler version from version string. */
3521 compiler_version
= temp1
= xstrdup (version_string
);
3523 for (; *temp1
; ++temp1
)
3532 /* Handle any -no-canonical-prefixes flag early, to assign the function
3533 that builds relative prefixes. This function creates default search
3534 paths that are needed later in normal option handling. */
3536 for (j
= 1; j
< decoded_options_count
; j
++)
3538 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
3540 get_relative_prefix
= make_relative_prefix_ignore_links
;
3544 if (! get_relative_prefix
)
3545 get_relative_prefix
= make_relative_prefix
;
3547 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3548 see if we can create it from the pathname specified in
3549 decoded_options[0].arg. */
3551 gcc_libexec_prefix
= standard_libexec_prefix
;
3553 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3554 if (!gcc_exec_prefix
)
3556 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3557 standard_bindir_prefix
,
3558 standard_exec_prefix
);
3559 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3560 standard_bindir_prefix
,
3561 standard_libexec_prefix
);
3562 if (gcc_exec_prefix
)
3563 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3567 /* make_relative_prefix requires a program name, but
3568 GCC_EXEC_PREFIX is typically a directory name with a trailing
3569 / (which is ignored by make_relative_prefix), so append a
3571 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3572 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
3573 standard_exec_prefix
,
3574 standard_libexec_prefix
);
3576 /* The path is unrelocated, so fallback to the original setting. */
3577 if (!gcc_libexec_prefix
)
3578 gcc_libexec_prefix
= standard_libexec_prefix
;
3584 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3585 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3586 or an automatically created GCC_EXEC_PREFIX from
3587 decoded_options[0].arg. */
3589 /* Do language-specific adjustment/addition of flags. */
3590 lang_specific_driver (&decoded_options
, &decoded_options_count
,
3593 if (gcc_exec_prefix
)
3595 int len
= strlen (gcc_exec_prefix
);
3597 if (len
> (int) sizeof ("/lib/gcc/") - 1
3598 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3600 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3601 if (IS_DIR_SEPARATOR (*temp
)
3602 && strncmp (temp
+ 1, "lib", 3) == 0
3603 && IS_DIR_SEPARATOR (temp
[4])
3604 && strncmp (temp
+ 5, "gcc", 3) == 0)
3605 len
-= sizeof ("/lib/gcc/") - 1;
3608 set_std_prefix (gcc_exec_prefix
, len
);
3609 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3610 PREFIX_PRIORITY_LAST
, 0, 0);
3611 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3612 PREFIX_PRIORITY_LAST
, 0, 0);
3615 /* COMPILER_PATH and LIBRARY_PATH have values
3616 that are lists of directory names with colons. */
3618 temp
= getenv ("COMPILER_PATH");
3621 const char *startp
, *endp
;
3622 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3624 startp
= endp
= temp
;
3627 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3629 strncpy (nstore
, startp
, endp
- startp
);
3631 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3632 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3634 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3635 nstore
[endp
- startp
+ 1] = 0;
3638 nstore
[endp
- startp
] = 0;
3639 add_prefix (&exec_prefixes
, nstore
, 0,
3640 PREFIX_PRIORITY_LAST
, 0, 0);
3641 add_prefix (&include_prefixes
, nstore
, 0,
3642 PREFIX_PRIORITY_LAST
, 0, 0);
3645 endp
= startp
= endp
+ 1;
3652 temp
= getenv (LIBRARY_PATH_ENV
);
3653 if (temp
&& *cross_compile
== '0')
3655 const char *startp
, *endp
;
3656 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3658 startp
= endp
= temp
;
3661 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3663 strncpy (nstore
, startp
, endp
- startp
);
3665 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3666 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3668 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3669 nstore
[endp
- startp
+ 1] = 0;
3672 nstore
[endp
- startp
] = 0;
3673 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3674 PREFIX_PRIORITY_LAST
, 0, 1);
3677 endp
= startp
= endp
+ 1;
3684 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3685 temp
= getenv ("LPATH");
3686 if (temp
&& *cross_compile
== '0')
3688 const char *startp
, *endp
;
3689 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3691 startp
= endp
= temp
;
3694 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3696 strncpy (nstore
, startp
, endp
- startp
);
3698 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3699 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3701 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3702 nstore
[endp
- startp
+ 1] = 0;
3705 nstore
[endp
- startp
] = 0;
3706 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3707 PREFIX_PRIORITY_LAST
, 0, 1);
3710 endp
= startp
= endp
+ 1;
3717 /* Process the options and store input files and switches in their
3720 last_language_n_infiles
= -1;
3722 set_option_handlers (&handlers
);
3724 for (j
= 1; j
< decoded_options_count
; j
++)
3726 switch (decoded_options
[j
].opt_index
)
3738 for (j
= 1; j
< decoded_options_count
; j
++)
3740 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
3742 const char *arg
= decoded_options
[j
].arg
;
3743 const char *p
= strrchr (arg
, '@');
3747 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3748 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
3750 /* For LTO static archive support we handle input file
3751 specifications that are composed of a filename and
3752 an offset like FNAME@OFFSET. */
3755 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
3756 && strlen (p
) == (unsigned int)consumed
)
3758 fname
= (char *)xmalloc (p
- arg
+ 1);
3759 memcpy (fname
, arg
, p
- arg
);
3760 fname
[p
- arg
] = '\0';
3761 /* Only accept non-stdin and existing FNAME parts, otherwise
3762 try with the full name. */
3763 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
3766 fname
= xstrdup (arg
);
3770 fname
= xstrdup (arg
);
3772 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
3773 perror_with_name (fname
);
3775 add_infile (arg
, spec_lang
);
3781 read_cmdline_option (&global_options
, &global_options_set
,
3782 decoded_options
+ j
, UNKNOWN_LOCATION
,
3783 CL_DRIVER
, &handlers
, global_dc
);
3786 /* If -save-temps=obj and -o name, create the prefix to use for %b.
3787 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
3788 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
3790 save_temps_length
= strlen (save_temps_prefix
);
3791 temp
= strrchr (lbasename (save_temps_prefix
), '.');
3794 save_temps_length
-= strlen (temp
);
3795 save_temps_prefix
[save_temps_length
] = '\0';
3799 else if (save_temps_prefix
!= NULL
)
3801 free (save_temps_prefix
);
3802 save_temps_prefix
= NULL
;
3805 if (save_temps_flag
&& use_pipes
)
3807 /* -save-temps overrides -pipe, so that temp files are produced */
3808 if (save_temps_flag
)
3809 warning (0, "-pipe ignored because -save-temps specified");
3815 const char *gcd
= getenv ("GCC_COMPARE_DEBUG");
3817 if (gcd
&& gcd
[0] == '-')
3820 compare_debug_opt
= gcd
;
3822 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
3825 compare_debug_opt
= "-gtoggle";
3828 else if (compare_debug
< 0)
3831 gcc_assert (!compare_debug_opt
);
3834 /* Set up the search paths. We add directories that we expect to
3835 contain GNU Toolchain components before directories specified by
3836 the machine description so that we will find GNU components (like
3837 the GNU assembler) before those of the host system. */
3839 /* If we don't know where the toolchain has been installed, use the
3840 configured-in locations. */
3841 if (!gcc_exec_prefix
)
3844 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
3845 PREFIX_PRIORITY_LAST
, 1, 0);
3846 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
3847 PREFIX_PRIORITY_LAST
, 2, 0);
3848 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3849 PREFIX_PRIORITY_LAST
, 2, 0);
3851 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3852 PREFIX_PRIORITY_LAST
, 1, 0);
3855 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
3856 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3857 dir_separator_str
, NULL
);
3859 /* Look for tools relative to the location from which the driver is
3860 running, or, if that is not available, the configured prefix. */
3862 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
3863 spec_machine
, dir_separator_str
,
3864 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3866 add_prefix (&exec_prefixes
,
3867 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3868 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
3869 add_prefix (&startfile_prefixes
,
3870 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3871 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
3873 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
3874 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
3875 then consider it to relocate with the rest of the GCC installation
3876 if GCC_EXEC_PREFIX is set.
3877 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
3878 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
3880 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3881 standard_bindir_prefix
,
3882 target_system_root
);
3883 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
3885 target_system_root
= tmp_prefix
;
3886 target_system_root_changed
= 1;
3891 /* More prefixes are enabled in main, after we read the specs file
3892 and determine whether this is cross-compilation or not. */
3894 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
3895 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
3897 if (compare_debug
== 2 || compare_debug
== 3)
3900 switches
[n_switches
].part1
= concat ("fcompare-debug=",
3903 switches
[n_switches
].args
= 0;
3904 switches
[n_switches
].live_cond
= 0;
3905 switches
[n_switches
].validated
= 0;
3906 switches
[n_switches
].ordering
= 0;
3911 /* Ensure we only invoke each subprocess once. */
3912 if (print_subprocess_help
|| print_help_list
|| print_version
)
3916 /* Create a dummy input file, so that we can pass
3917 the help option on to the various sub-processes. */
3918 add_infile ("help-dummy", "c");
3922 switches
[n_switches
].part1
= 0;
3924 infiles
[n_infiles
].name
= 0;
3927 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
3928 and place that in the environment. */
3931 set_collect_gcc_options (void)
3936 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
3938 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
3939 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
3942 for (i
= 0; (int) i
< n_switches
; i
++)
3944 const char *const *args
;
3947 obstack_grow (&collect_obstack
, " ", 1);
3951 /* Ignore elided switches. */
3952 if ((switches
[i
].live_cond
3953 & (SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
))
3957 obstack_grow (&collect_obstack
, "'-", 2);
3958 q
= switches
[i
].part1
;
3959 while ((p
= strchr (q
, '\'')))
3961 obstack_grow (&collect_obstack
, q
, p
- q
);
3962 obstack_grow (&collect_obstack
, "'\\''", 4);
3965 obstack_grow (&collect_obstack
, q
, strlen (q
));
3966 obstack_grow (&collect_obstack
, "'", 1);
3968 for (args
= switches
[i
].args
; args
&& *args
; args
++)
3970 obstack_grow (&collect_obstack
, " '", 2);
3972 while ((p
= strchr (q
, '\'')))
3974 obstack_grow (&collect_obstack
, q
, p
- q
);
3975 obstack_grow (&collect_obstack
, "'\\''", 4);
3978 obstack_grow (&collect_obstack
, q
, strlen (q
));
3979 obstack_grow (&collect_obstack
, "'", 1);
3982 obstack_grow (&collect_obstack
, "\0", 1);
3983 xputenv (XOBFINISH (&collect_obstack
, char *));
3986 /* Process a spec string, accumulating and running commands. */
3988 /* These variables describe the input file name.
3989 input_file_number is the index on outfiles of this file,
3990 so that the output file name can be stored for later use by %o.
3991 input_basename is the start of the part of the input file
3992 sans all directory names, and basename_length is the number
3993 of characters starting there excluding the suffix .c or whatever. */
3995 static const char *gcc_input_filename
;
3996 static int input_file_number
;
3997 size_t input_filename_length
;
3998 static int basename_length
;
3999 static int suffixed_basename_length
;
4000 static const char *input_basename
;
4001 static const char *input_suffix
;
4002 #ifndef HOST_LACKS_INODE_NUMBERS
4003 static struct stat input_stat
;
4005 static int input_stat_set
;
4007 /* The compiler used to process the current input file. */
4008 static struct compiler
*input_file_compiler
;
4010 /* These are variables used within do_spec and do_spec_1. */
4012 /* Nonzero if an arg has been started and not yet terminated
4013 (with space, tab or newline). */
4014 static int arg_going
;
4016 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4017 is a temporary file name. */
4018 static int delete_this_arg
;
4020 /* Nonzero means %w has been seen; the next arg to be terminated
4021 is the output file name of this compilation. */
4022 static int this_is_output_file
;
4024 /* Nonzero means %s has been seen; the next arg to be terminated
4025 is the name of a library file and we should try the standard
4026 search dirs for it. */
4027 static int this_is_library_file
;
4029 /* Nonzero means %T has been seen; the next arg to be terminated
4030 is the name of a linker script and we should try all of the
4031 standard search dirs for it. If it is found insert a --script
4032 command line switch and then substitute the full path in place,
4033 otherwise generate an error message. */
4034 static int this_is_linker_script
;
4036 /* Nonzero means that the input of this command is coming from a pipe. */
4037 static int input_from_pipe
;
4039 /* Nonnull means substitute this for any suffix when outputting a switches
4041 static const char *suffix_subst
;
4043 /* If there is an argument being accumulated, terminate it and store it. */
4046 end_going_arg (void)
4052 obstack_1grow (&obstack
, 0);
4053 string
= XOBFINISH (&obstack
, const char *);
4054 if (this_is_library_file
)
4055 string
= find_file (string
);
4056 if (this_is_linker_script
)
4058 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4060 if (full_script_path
== NULL
)
4062 error ("unable to locate default linker script %qs in the library search paths", string
);
4063 /* Script was not found on search path. */
4066 store_arg ("--script", false, false);
4067 string
= full_script_path
;
4069 store_arg (string
, delete_this_arg
, this_is_output_file
);
4070 if (this_is_output_file
)
4071 outfiles
[input_file_number
] = string
;
4077 /* Parse the WRAPPER string which is a comma separated list of the command line
4078 and insert them into the beginning of argbuf. */
4081 insert_wrapper (const char *wrapper
)
4085 char *buf
= xstrdup (wrapper
);
4087 unsigned int old_length
= VEC_length (const_char_p
, argbuf
);
4095 while ((p
= strchr (p
, ',')) != NULL
);
4097 VEC_safe_grow (const_char_p
, heap
, argbuf
, old_length
+ n
);
4098 memmove (VEC_address (const_char_p
, argbuf
) + n
,
4099 VEC_address (const_char_p
, argbuf
),
4100 old_length
* sizeof (const_char_p
));
4111 VEC_replace (const_char_p
, argbuf
, i
, p
);
4114 while ((p
= strchr (p
, ',')) != NULL
);
4115 gcc_assert (i
== n
);
4118 /* Process the spec SPEC and run the commands specified therein.
4119 Returns 0 if the spec is successfully processed; -1 if failed. */
4122 do_spec (const char *spec
)
4126 value
= do_spec_2 (spec
);
4128 /* Force out any unfinished command.
4129 If -pipe, this forces out the last command if it ended in `|'. */
4132 if (VEC_length (const_char_p
, argbuf
) > 0
4133 && !strcmp (VEC_last (const_char_p
, argbuf
), "|"))
4134 VEC_pop (const_char_p
, argbuf
);
4136 set_collect_gcc_options ();
4138 if (VEC_length (const_char_p
, argbuf
) > 0)
4146 do_spec_2 (const char *spec
)
4152 delete_this_arg
= 0;
4153 this_is_output_file
= 0;
4154 this_is_library_file
= 0;
4155 this_is_linker_script
= 0;
4156 input_from_pipe
= 0;
4157 suffix_subst
= NULL
;
4159 result
= do_spec_1 (spec
, 0, NULL
);
4167 /* Process the given spec string and add any new options to the end
4168 of the switches/n_switches array. */
4171 do_option_spec (const char *name
, const char *spec
)
4173 unsigned int i
, value_count
, value_len
;
4174 const char *p
, *q
, *value
;
4175 char *tmp_spec
, *tmp_spec_p
;
4177 if (configure_default_options
[0].name
== NULL
)
4180 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4181 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4183 if (i
== ARRAY_SIZE (configure_default_options
))
4186 value
= configure_default_options
[i
].value
;
4187 value_len
= strlen (value
);
4189 /* Compute the size of the final spec. */
4192 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4198 /* Replace each %(VALUE) by the specified value. */
4199 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4200 + value_count
* (value_len
- strlen ("%(VALUE)")));
4201 tmp_spec_p
= tmp_spec
;
4203 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4205 memcpy (tmp_spec_p
, q
, p
- q
);
4206 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4207 memcpy (tmp_spec_p
, value
, value_len
);
4208 tmp_spec_p
+= value_len
;
4209 q
= p
+ strlen ("%(VALUE)");
4211 strcpy (tmp_spec_p
, q
);
4213 do_self_spec (tmp_spec
);
4216 /* Process the given spec string and add any new options to the end
4217 of the switches/n_switches array. */
4220 do_self_spec (const char *spec
)
4225 do_spec_1 (" ", 0, NULL
);
4227 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
4228 do_self_specs adds the replacements to switches array, so it shouldn't
4229 be processed afterwards. */
4230 for (i
= 0; i
< n_switches
; i
++)
4231 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
4232 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
4234 if (VEC_length (const_char_p
, argbuf
) > 0)
4236 const char **argbuf_copy
;
4237 struct cl_decoded_option
*decoded_options
;
4238 struct cl_option_handlers handlers
;
4239 unsigned int decoded_options_count
;
4242 /* Create a copy of argbuf with a dummy argv[0] entry for
4243 decode_cmdline_options_to_array. */
4244 argbuf_copy
= XNEWVEC (const char *,
4245 VEC_length (const_char_p
, argbuf
) + 1);
4246 argbuf_copy
[0] = "";
4247 memcpy (argbuf_copy
+ 1, VEC_address (const_char_p
, argbuf
),
4248 VEC_length (const_char_p
, argbuf
) * sizeof (const char *));
4250 decode_cmdline_options_to_array (VEC_length (const_char_p
, argbuf
) + 1,
4252 CL_DRIVER
, &decoded_options
,
4253 &decoded_options_count
);
4255 set_option_handlers (&handlers
);
4257 for (j
= 1; j
< decoded_options_count
; j
++)
4259 switch (decoded_options
[j
].opt_index
)
4261 case OPT_SPECIAL_input_file
:
4262 /* Specs should only generate options, not input
4264 if (strcmp (decoded_options
[j
].arg
, "-") != 0)
4265 fatal_error ("switch %qs does not start with %<-%>",
4266 decoded_options
[j
].arg
);
4268 fatal_error ("spec-generated switch is just %<-%>");
4271 case OPT_fcompare_debug_second
:
4272 case OPT_fcompare_debug
:
4273 case OPT_fcompare_debug_
:
4275 /* Avoid duplicate processing of some options from
4276 compare-debug specs; just save them here. */
4277 save_switch (decoded_options
[j
].canonical_option
[0],
4278 (decoded_options
[j
].canonical_option_num_elements
4280 &decoded_options
[j
].canonical_option
[1], false);
4284 read_cmdline_option (&global_options
, &global_options_set
,
4285 decoded_options
+ j
, UNKNOWN_LOCATION
,
4286 CL_DRIVER
, &handlers
, global_dc
);
4292 switches
[n_switches
].part1
= 0;
4296 /* Callback for processing %D and %I specs. */
4298 struct spec_path_info
{
4303 bool separate_options
;
4307 spec_path (char *path
, void *data
)
4309 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
4313 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4316 if (info
->append_len
!= 0)
4318 len
= strlen (path
);
4319 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4322 if (!is_directory (path
, true))
4325 do_spec_1 (info
->option
, 1, NULL
);
4326 if (info
->separate_options
)
4327 do_spec_1 (" ", 0, NULL
);
4329 if (info
->append_len
== 0)
4331 len
= strlen (path
);
4332 save
= path
[len
- 1];
4333 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4334 path
[len
- 1] = '\0';
4337 do_spec_1 (path
, 1, NULL
);
4338 do_spec_1 (" ", 0, NULL
);
4340 /* Must not damage the original path. */
4341 if (info
->append_len
== 0)
4342 path
[len
- 1] = save
;
4347 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
4351 create_at_file (char **argv
)
4353 char *temp_file
= make_temp_file ("");
4354 char *at_argument
= concat ("@", temp_file
, NULL
);
4355 FILE *f
= fopen (temp_file
, "w");
4359 fatal_error ("could not open temporary response file %s",
4362 status
= writeargv (argv
, f
);
4365 fatal_error ("could not write to temporary response file %s",
4368 status
= fclose (f
);
4371 fatal_error ("could not close temporary response file %s",
4374 store_arg (at_argument
, 0, 0);
4376 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
4379 /* True if we should compile INFILE. */
4382 compile_input_file_p (struct infile
*infile
)
4384 if ((!infile
->language
) || (infile
->language
[0] != '*'))
4385 if (infile
->incompiler
== input_file_compiler
)
4390 /* Process each member of VEC as a spec. */
4393 do_specs_vec (VEC(char_p
,heap
) *vec
)
4398 FOR_EACH_VEC_ELT (char_p
, vec
, ix
, opt
)
4400 do_spec_1 (opt
, 1, NULL
);
4401 /* Make each accumulated option a separate argument. */
4402 do_spec_1 (" ", 0, NULL
);
4406 /* Process the sub-spec SPEC as a portion of a larger spec.
4407 This is like processing a whole spec except that we do
4408 not initialize at the beginning and we do not supply a
4409 newline by default at the end.
4410 INSWITCH nonzero means don't process %-sequences in SPEC;
4411 in this case, % is treated as an ordinary character.
4412 This is used while substituting switches.
4413 INSWITCH nonzero also causes SPC not to terminate an argument.
4415 Value is zero unless a line was finished
4416 and the command on that line reported an error. */
4419 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4421 const char *p
= spec
;
4427 /* If substituting a switch, treat all chars like letters.
4428 Otherwise, NL, SPC, TAB and % are special. */
4429 switch (inswitch
? 'a' : c
)
4434 if (VEC_length (const_char_p
, argbuf
) > 0
4435 && !strcmp (VEC_last (const_char_p
, argbuf
), "|"))
4437 /* A `|' before the newline means use a pipe here,
4438 but only if -pipe was specified.
4439 Otherwise, execute now and don't pass the `|' as an arg. */
4442 input_from_pipe
= 1;
4446 VEC_pop (const_char_p
, argbuf
);
4449 set_collect_gcc_options ();
4451 if (VEC_length (const_char_p
, argbuf
) > 0)
4457 /* Reinitialize for a new command, and for a new argument. */
4460 delete_this_arg
= 0;
4461 this_is_output_file
= 0;
4462 this_is_library_file
= 0;
4463 this_is_linker_script
= 0;
4464 input_from_pipe
= 0;
4471 obstack_1grow (&obstack
, c
);
4479 /* Reinitialize for a new argument. */
4480 delete_this_arg
= 0;
4481 this_is_output_file
= 0;
4482 this_is_library_file
= 0;
4483 this_is_linker_script
= 0;
4490 fatal_error ("spec %qs invalid", spec
);
4493 if (save_temps_length
)
4494 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4496 obstack_grow (&obstack
, input_basename
, basename_length
);
4497 if (compare_debug
< 0)
4498 obstack_grow (&obstack
, ".gk", 3);
4503 if (save_temps_length
)
4504 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4506 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4507 if (compare_debug
< 0)
4508 obstack_grow (&obstack
, ".gk", 3);
4513 delete_this_arg
= 2;
4516 /* Dump out the directories specified with LIBRARY_PATH,
4517 followed by the absolute directories
4518 that we search for startfiles. */
4521 struct spec_path_info info
;
4524 info
.append_len
= 0;
4525 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4526 /* Used on systems which record the specified -L dirs
4527 and use them to search for dynamic linking.
4528 Relative directories always come from -B,
4529 and it is better not to use them for searching
4530 at run time. In particular, stage1 loses. */
4531 info
.omit_relative
= true;
4533 info
.omit_relative
= false;
4535 info
.separate_options
= false;
4537 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
4542 /* %efoo means report an error with `foo' as error message
4543 and don't execute any more commands for this file. */
4547 while (*p
!= 0 && *p
!= '\n')
4549 buf
= (char *) alloca (p
- q
+ 1);
4550 strncpy (buf
, q
, p
- q
);
4552 error ("%s", _(buf
));
4557 /* %nfoo means report a notice with `foo' on stderr. */
4561 while (*p
!= 0 && *p
!= '\n')
4563 buf
= (char *) alloca (p
- q
+ 1);
4564 strncpy (buf
, q
, p
- q
);
4566 inform (0, "%s", _(buf
));
4576 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4577 defined, and it is not a directory, and it is
4578 writable, use it. Otherwise, treat this like any
4579 other temporary file. */
4581 if ((!save_temps_flag
)
4582 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4583 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4585 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4586 strlen (HOST_BIT_BUCKET
));
4587 delete_this_arg
= 0;
4592 goto create_temp_file
;
4596 obstack_1grow (&obstack
, '-');
4597 delete_this_arg
= 0;
4600 /* consume suffix */
4601 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4603 if (p
[0] == '%' && p
[1] == 'O')
4608 goto create_temp_file
;
4612 /* consume suffix */
4613 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4615 if (p
[0] == '%' && p
[1] == 'O')
4620 goto create_temp_file
;
4626 struct temp_name
*t
;
4628 const char *suffix
= p
;
4629 char *saved_suffix
= NULL
;
4631 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4633 suffix_length
= p
- suffix
;
4634 if (p
[0] == '%' && p
[1] == 'O')
4637 /* We don't support extra suffix characters after %O. */
4638 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
4639 fatal_error ("spec %qs has invalid %<%%0%c%>", spec
, *p
);
4640 if (suffix_length
== 0)
4641 suffix
= TARGET_OBJECT_SUFFIX
;
4645 = XNEWVEC (char, suffix_length
4646 + strlen (TARGET_OBJECT_SUFFIX
));
4647 strncpy (saved_suffix
, suffix
, suffix_length
);
4648 strcpy (saved_suffix
+ suffix_length
,
4649 TARGET_OBJECT_SUFFIX
);
4651 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4654 if (compare_debug
< 0)
4656 suffix
= concat (".gk", suffix
, NULL
);
4660 /* If -save-temps=obj and -o were specified, use that for the
4662 if (save_temps_length
)
4665 temp_filename_length
4666 = save_temps_length
+ suffix_length
+ 1;
4667 tmp
= (char *) alloca (temp_filename_length
);
4668 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
4669 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
4670 tmp
[save_temps_length
+ suffix_length
] = '\0';
4671 temp_filename
= save_string (tmp
,
4672 temp_filename_length
+ 1);
4673 obstack_grow (&obstack
, temp_filename
,
4674 temp_filename_length
);
4676 delete_this_arg
= 0;
4680 /* If the gcc_input_filename has the same suffix specified
4681 for the %g, %u, or %U, and -save-temps is specified,
4682 we could end up using that file as an intermediate
4683 thus clobbering the user's source file (.e.g.,
4684 gcc -save-temps foo.s would clobber foo.s with the
4685 output of cpp0). So check for this condition and
4686 generate a temp file as the intermediate. */
4688 if (save_temps_flag
)
4691 temp_filename_length
= basename_length
+ suffix_length
+ 1;
4692 tmp
= (char *) alloca (temp_filename_length
);
4693 memcpy (tmp
, input_basename
, basename_length
);
4694 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
4695 tmp
[basename_length
+ suffix_length
] = '\0';
4696 temp_filename
= tmp
;
4698 if (strcmp (temp_filename
, gcc_input_filename
) != 0)
4700 #ifndef HOST_LACKS_INODE_NUMBERS
4701 struct stat st_temp
;
4703 /* Note, set_input() resets input_stat_set to 0. */
4704 if (input_stat_set
== 0)
4706 input_stat_set
= stat (gcc_input_filename
,
4708 if (input_stat_set
>= 0)
4712 /* If we have the stat for the gcc_input_filename
4713 and we can do the stat for the temp_filename
4714 then the they could still refer to the same
4715 file if st_dev/st_ino's are the same. */
4716 if (input_stat_set
!= 1
4717 || stat (temp_filename
, &st_temp
) < 0
4718 || input_stat
.st_dev
!= st_temp
.st_dev
4719 || input_stat
.st_ino
!= st_temp
.st_ino
)
4721 /* Just compare canonical pathnames. */
4722 char* input_realname
= lrealpath (gcc_input_filename
);
4723 char* temp_realname
= lrealpath (temp_filename
);
4724 bool files_differ
= strcmp (input_realname
, temp_realname
);
4725 free (input_realname
);
4726 free (temp_realname
);
4730 temp_filename
= save_string (temp_filename
,
4731 temp_filename_length
+ 1);
4732 obstack_grow (&obstack
, temp_filename
,
4733 temp_filename_length
);
4735 delete_this_arg
= 0;
4741 /* See if we already have an association of %g/%u/%U and
4743 for (t
= temp_names
; t
; t
= t
->next
)
4744 if (t
->length
== suffix_length
4745 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4746 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4749 /* Make a new association if needed. %u and %j
4751 if (t
== 0 || c
== 'u' || c
== 'j')
4755 t
= XNEW (struct temp_name
);
4756 t
->next
= temp_names
;
4759 t
->length
= suffix_length
;
4762 t
->suffix
= saved_suffix
;
4763 saved_suffix
= NULL
;
4766 t
->suffix
= save_string (suffix
, suffix_length
);
4767 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4768 temp_filename
= make_temp_file (t
->suffix
);
4769 temp_filename_length
= strlen (temp_filename
);
4770 t
->filename
= temp_filename
;
4771 t
->filename_length
= temp_filename_length
;
4775 free (saved_suffix
);
4777 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4778 delete_this_arg
= 1;
4786 if (at_file_supplied
)
4788 /* We are going to expand `%i' to `@FILE', where FILE
4789 is a newly-created temporary filename. The filenames
4790 that would usually be expanded in place of %o will be
4791 written to the temporary file. */
4796 for (i
= 0; i
< n_infiles
; i
++)
4797 if (compile_input_file_p (&infiles
[i
]))
4800 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
4802 /* Copy the strings over. */
4803 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
4804 if (compile_input_file_p (&infiles
[i
]))
4806 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
4807 infiles
[i
].compiled
= true;
4812 create_at_file (argv
);
4815 for (i
= 0; (int) i
< n_infiles
; i
++)
4816 if (compile_input_file_p (&infiles
[i
]))
4818 store_arg (infiles
[i
].name
, 0, 0);
4819 infiles
[i
].compiled
= true;
4824 obstack_grow (&obstack
, gcc_input_filename
,
4825 input_filename_length
);
4832 struct spec_path_info info
;
4836 do_spec_1 ("-imultilib", 1, NULL
);
4837 /* Make this a separate argument. */
4838 do_spec_1 (" ", 0, NULL
);
4839 do_spec_1 (multilib_dir
, 1, NULL
);
4840 do_spec_1 (" ", 0, NULL
);
4843 if (gcc_exec_prefix
)
4845 do_spec_1 ("-iprefix", 1, NULL
);
4846 /* Make this a separate argument. */
4847 do_spec_1 (" ", 0, NULL
);
4848 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4849 do_spec_1 (" ", 0, NULL
);
4852 if (target_system_root_changed
||
4853 (target_system_root
&& target_sysroot_hdrs_suffix
))
4855 do_spec_1 ("-isysroot", 1, NULL
);
4856 /* Make this a separate argument. */
4857 do_spec_1 (" ", 0, NULL
);
4858 do_spec_1 (target_system_root
, 1, NULL
);
4859 if (target_sysroot_hdrs_suffix
)
4860 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4861 do_spec_1 (" ", 0, NULL
);
4864 info
.option
= "-isystem";
4865 info
.append
= "include";
4866 info
.append_len
= strlen (info
.append
);
4867 info
.omit_relative
= false;
4868 info
.separate_options
= true;
4870 for_each_path (&include_prefixes
, false, info
.append_len
,
4873 info
.append
= "include-fixed";
4874 if (*sysroot_hdrs_suffix_spec
)
4875 info
.append
= concat (info
.append
, dir_separator_str
,
4876 multilib_dir
, NULL
);
4877 info
.append_len
= strlen (info
.append
);
4878 for_each_path (&include_prefixes
, false, info
.append_len
,
4885 int max
= n_infiles
;
4886 max
+= lang_specific_extra_outfiles
;
4888 if (HAVE_GNU_LD
&& at_file_supplied
)
4890 /* We are going to expand `%o' to `@FILE', where FILE
4891 is a newly-created temporary filename. The filenames
4892 that would usually be expanded in place of %o will be
4893 written to the temporary file. */
4898 /* Convert OUTFILES into a form suitable for writeargv. */
4900 /* Determine how many are non-NULL. */
4901 for (n_files
= 0, i
= 0; i
< max
; i
++)
4902 n_files
+= outfiles
[i
] != NULL
;
4904 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
4906 /* Copy the strings over. */
4907 for (i
= 0, j
= 0; i
< max
; i
++)
4910 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
4915 create_at_file (argv
);
4918 for (i
= 0; i
< max
; i
++)
4920 store_arg (outfiles
[i
], 0, 0);
4925 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4930 this_is_library_file
= 1;
4934 this_is_linker_script
= 1;
4938 outfiles
[input_file_number
] = NULL
;
4942 this_is_output_file
= 1;
4947 unsigned int cur_index
= VEC_length (const_char_p
, argbuf
);
4948 /* Handle the {...} following the %W. */
4950 fatal_error ("spec %qs has invalid %<%%W%c%>", spec
, *p
);
4951 p
= handle_braces (p
+ 1);
4955 /* If any args were output, mark the last one for deletion
4957 if (VEC_length (const_char_p
, argbuf
) != cur_index
)
4958 record_temp_file (VEC_last (const_char_p
, argbuf
), 0, 1);
4962 /* %x{OPTION} records OPTION for %X to output. */
4970 /* Skip past the option value and make a copy. */
4972 fatal_error ("spec %qs has invalid %<%%x%c%>", spec
, *p
);
4975 string
= save_string (p1
+ 1, p
- p1
- 2);
4977 /* See if we already recorded this option. */
4978 FOR_EACH_VEC_ELT (char_p
, linker_options
, ix
, opt
)
4979 if (! strcmp (string
, opt
))
4985 /* This option is new; add it. */
4986 add_linker_option (string
, strlen (string
));
4990 /* Dump out the options accumulated previously using %x. */
4992 do_specs_vec (linker_options
);
4995 /* Dump out the options accumulated previously using -Wa,. */
4997 do_specs_vec (assembler_options
);
5000 /* Dump out the options accumulated previously using -Wp,. */
5002 do_specs_vec (preprocessor_options
);
5005 /* Here are digits and numbers that just process
5006 a certain constant string as a spec. */
5009 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5015 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5021 value
= do_spec_1 (asm_spec
, 0, NULL
);
5027 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5034 const char *const spec
5035 = (input_file_compiler
->cpp_spec
5036 ? input_file_compiler
->cpp_spec
5038 value
= do_spec_1 (spec
, 0, NULL
);
5045 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5051 value
= do_spec_1 (link_spec
, 0, NULL
);
5057 value
= do_spec_1 (lib_spec
, 0, NULL
);
5063 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5069 /* We assume there is a directory
5070 separator at the end of this string. */
5071 if (target_system_root
)
5073 obstack_grow (&obstack
, target_system_root
,
5074 strlen (target_system_root
));
5075 if (target_sysroot_suffix
)
5076 obstack_grow (&obstack
, target_sysroot_suffix
,
5077 strlen (target_sysroot_suffix
));
5082 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5087 /* Here we define characters other than letters and digits. */
5090 p
= handle_braces (p
);
5096 p
= handle_spec_function (p
);
5102 obstack_1grow (&obstack
, '%');
5109 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5111 suffix_subst
= save_string (p
- 1, len
+ 1);
5116 /* Henceforth ignore the option(s) matching the pattern
5122 int have_wildcard
= 0;
5127 switch_option
= SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
;
5129 switch_option
= SWITCH_IGNORE
;
5131 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5134 if (p
[len
-1] == '*')
5137 for (i
= 0; i
< n_switches
; i
++)
5138 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5139 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5141 switches
[i
].live_cond
|= switch_option
;
5142 switches
[i
].validated
= 1;
5150 if (soft_matched_part
)
5152 do_spec_1 (soft_matched_part
, 1, NULL
);
5153 do_spec_1 (" ", 0, NULL
);
5156 /* Catch the case where a spec string contains something like
5157 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5158 hand side of the :. */
5159 error ("spec failure: %<%%*%> has not been initialized by pattern match");
5162 /* Process a string found as the value of a spec given by name.
5163 This feature allows individual machine descriptions
5164 to add and use their own specs.
5165 %[...] modifies -D options the way %P does;
5166 %(...) uses the spec unmodified. */
5168 warning (0, "use of obsolete %%[ operator in specs");
5171 const char *name
= p
;
5172 struct spec_list
*sl
;
5175 /* The string after the S/P is the name of a spec that is to be
5177 while (*p
&& *p
!= ')' && *p
!= ']')
5180 /* See if it's in the list. */
5181 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5182 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5184 name
= *(sl
->ptr_spec
);
5186 fnotice (stderr
, "Processing spec %c%s%c, which is '%s'\n",
5187 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5196 value
= do_spec_1 (name
, 0, NULL
);
5202 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
5204 const char *y
= name
;
5207 /* Copy all of NAME into BUF, but put __ after
5208 every -D and at the end of each arg. */
5211 if (! strncmp (y
, "-D", 2))
5222 && (*y
== ' ' || *y
== '\t' || *y
== '='
5223 || *y
== '}' || *y
== 0))
5236 value
= do_spec_1 (buf
, 0, NULL
);
5242 /* Discard the closing paren or bracket. */
5249 error ("spec failure: unrecognized spec option %qc", c
);
5255 /* Backslash: treat next character as ordinary. */
5260 /* Ordinary character: put it into the current argument. */
5261 obstack_1grow (&obstack
, c
);
5265 /* End of string. If we are processing a spec function, we need to
5266 end any pending argument. */
5267 if (processing_spec_function
)
5273 /* Look up a spec function. */
5275 static const struct spec_function
*
5276 lookup_spec_function (const char *name
)
5278 const struct spec_function
*sf
;
5280 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5281 if (strcmp (sf
->name
, name
) == 0)
5287 /* Evaluate a spec function. */
5290 eval_spec_function (const char *func
, const char *args
)
5292 const struct spec_function
*sf
;
5293 const char *funcval
;
5295 /* Saved spec processing context. */
5296 VEC(const_char_p
,heap
) *save_argbuf
;
5299 int save_delete_this_arg
;
5300 int save_this_is_output_file
;
5301 int save_this_is_library_file
;
5302 int save_input_from_pipe
;
5303 int save_this_is_linker_script
;
5304 const char *save_suffix_subst
;
5307 sf
= lookup_spec_function (func
);
5309 fatal_error ("unknown spec function %qs", func
);
5311 /* Push the spec processing context. */
5312 save_argbuf
= argbuf
;
5314 save_arg_going
= arg_going
;
5315 save_delete_this_arg
= delete_this_arg
;
5316 save_this_is_output_file
= this_is_output_file
;
5317 save_this_is_library_file
= this_is_library_file
;
5318 save_this_is_linker_script
= this_is_linker_script
;
5319 save_input_from_pipe
= input_from_pipe
;
5320 save_suffix_subst
= suffix_subst
;
5322 /* Create a new spec processing context, and build the function
5326 if (do_spec_2 (args
) < 0)
5327 fatal_error ("error in args to spec function %qs", func
);
5329 /* argbuf_index is an index for the next argument to be inserted, and
5330 so contains the count of the args already inserted. */
5332 funcval
= (*sf
->func
) (VEC_length (const_char_p
, argbuf
),
5333 VEC_address (const_char_p
, argbuf
));
5335 /* Pop the spec processing context. */
5336 VEC_free (const_char_p
, heap
, argbuf
);
5337 argbuf
= save_argbuf
;
5339 arg_going
= save_arg_going
;
5340 delete_this_arg
= save_delete_this_arg
;
5341 this_is_output_file
= save_this_is_output_file
;
5342 this_is_library_file
= save_this_is_library_file
;
5343 this_is_linker_script
= save_this_is_linker_script
;
5344 input_from_pipe
= save_input_from_pipe
;
5345 suffix_subst
= save_suffix_subst
;
5350 /* Handle a spec function call of the form:
5354 ARGS is processed as a spec in a separate context and split into an
5355 argument vector in the normal fashion. The function returns a string
5356 containing a spec which we then process in the caller's context, or
5357 NULL if no processing is required. */
5360 handle_spec_function (const char *p
)
5363 const char *endp
, *funcval
;
5366 processing_spec_function
++;
5368 /* Get the function name. */
5369 for (endp
= p
; *endp
!= '\0'; endp
++)
5371 if (*endp
== '(') /* ) */
5373 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5374 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5375 fatal_error ("malformed spec function name");
5377 if (*endp
!= '(') /* ) */
5378 fatal_error ("no arguments for spec function");
5379 func
= save_string (p
, endp
- p
);
5382 /* Get the arguments. */
5383 for (count
= 0; *endp
!= '\0'; endp
++)
5392 else if (*endp
== '(') /* ) */
5397 fatal_error ("malformed spec function arguments");
5398 args
= save_string (p
, endp
- p
);
5401 /* p now points to just past the end of the spec function expression. */
5403 funcval
= eval_spec_function (func
, args
);
5404 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5410 processing_spec_function
--;
5415 /* Inline subroutine of handle_braces. Returns true if the current
5416 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5418 input_suffix_matches (const char *atom
, const char *end_atom
)
5420 return (input_suffix
5421 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5422 && input_suffix
[end_atom
- atom
] == '\0');
5425 /* Subroutine of handle_braces. Returns true if the current
5426 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
5428 input_spec_matches (const char *atom
, const char *end_atom
)
5430 return (input_file_compiler
5431 && input_file_compiler
->suffix
5432 && input_file_compiler
->suffix
[0] != '\0'
5433 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
5435 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
5438 /* Subroutine of handle_braces. Returns true if a switch
5439 matching the atom bracketed by ATOM and END_ATOM appeared on the
5442 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5445 int len
= end_atom
- atom
;
5446 int plen
= starred
? len
: -1;
5448 for (i
= 0; i
< n_switches
; i
++)
5449 if (!strncmp (switches
[i
].part1
, atom
, len
)
5450 && (starred
|| switches
[i
].part1
[len
] == '\0')
5451 && check_live_switch (i
, plen
))
5457 /* Inline subroutine of handle_braces. Mark all of the switches which
5458 match ATOM (extends to END_ATOM; STARRED indicates whether there
5459 was a star after the atom) for later processing. */
5461 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5464 int len
= end_atom
- atom
;
5465 int plen
= starred
? len
: -1;
5467 for (i
= 0; i
< n_switches
; i
++)
5468 if (!strncmp (switches
[i
].part1
, atom
, len
)
5469 && (starred
|| switches
[i
].part1
[len
] == '\0')
5470 && check_live_switch (i
, plen
))
5471 switches
[i
].ordering
= 1;
5474 /* Inline subroutine of handle_braces. Process all the currently
5475 marked switches through give_switch, and clear the marks. */
5477 process_marked_switches (void)
5481 for (i
= 0; i
< n_switches
; i
++)
5482 if (switches
[i
].ordering
== 1)
5484 switches
[i
].ordering
= 0;
5489 /* Handle a %{ ... } construct. P points just inside the leading {.
5490 Returns a pointer one past the end of the brace block, or 0
5491 if we call do_spec_1 and that returns -1. */
5494 handle_braces (const char *p
)
5496 const char *atom
, *end_atom
;
5497 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5498 const char *orig
= p
;
5506 bool a_must_be_last
= false;
5507 bool ordered_set
= false;
5508 bool disjunct_set
= false;
5509 bool disj_matched
= false;
5510 bool disj_starred
= true;
5511 bool n_way_choice
= false;
5512 bool n_way_matched
= false;
5514 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5521 /* Scan one "atom" (S in the description above of %{}, possibly
5522 with '!', '.', '@', ',', or '*' modifiers). */
5524 a_is_suffix
= false;
5525 a_is_starred
= false;
5526 a_is_negated
= false;
5527 a_is_spectype
= false;
5531 p
++, a_is_negated
= true;
5535 p
++, a_is_suffix
= true;
5537 p
++, a_is_spectype
= true;
5540 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5541 || *p
== ',' || *p
== '.' || *p
== '@')
5546 p
++, a_is_starred
= 1;
5552 /* Substitute the switch(es) indicated by the current atom. */
5554 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5555 || a_is_spectype
|| atom
== end_atom
)
5558 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5561 process_marked_switches ();
5565 /* Substitute some text if the current atom appears as a switch
5567 disjunct_set
= true;
5571 if (atom
== end_atom
)
5573 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5574 || a_is_negated
|| a_is_suffix
|| a_is_spectype
5578 /* An empty term may appear as the last choice of an
5579 N-way choice set; it means "otherwise". */
5580 a_must_be_last
= true;
5581 disj_matched
= !n_way_matched
;
5582 disj_starred
= false;
5586 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
5590 disj_starred
= false;
5592 /* Don't bother testing this atom if we already have a
5594 if (!disj_matched
&& !n_way_matched
)
5597 a_matched
= input_suffix_matches (atom
, end_atom
);
5598 else if (a_is_spectype
)
5599 a_matched
= input_spec_matches (atom
, end_atom
);
5601 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5603 if (a_matched
!= a_is_negated
)
5605 disj_matched
= true;
5607 d_end_atom
= end_atom
;
5614 /* Found the body, that is, the text to substitute if the
5615 current disjunction matches. */
5616 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5617 disj_matched
&& !n_way_matched
);
5621 /* If we have an N-way choice, reset state for the next
5625 n_way_choice
= true;
5626 n_way_matched
|= disj_matched
;
5627 disj_matched
= false;
5628 disj_starred
= true;
5629 d_atom
= d_end_atom
= NULL
;
5638 while (*p
++ != '}');
5643 fatal_error ("braced spec %qs is invalid at %qc", orig
, *p
);
5648 /* Subroutine of handle_braces. Scan and process a brace substitution body
5649 (X in the description of %{} syntax). P points one past the colon;
5650 ATOM and END_ATOM bracket the first atom which was found to be true
5651 (present) in the current disjunction; STARRED indicates whether all
5652 the atoms in the current disjunction were starred (for syntax validation);
5653 MATCHED indicates whether the disjunction matched or not, and therefore
5654 whether or not the body is to be processed through do_spec_1 or just
5655 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5659 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5660 int starred
, int matched
)
5662 const char *body
, *end_body
;
5663 unsigned int nesting_level
;
5664 bool have_subst
= false;
5666 /* Locate the closing } or ;, honoring nested braces.
5667 Trim trailing whitespace. */
5676 if (!--nesting_level
)
5679 else if (*p
== ';' && nesting_level
== 1)
5681 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5683 else if (*p
== '\0')
5689 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5692 if (have_subst
&& !starred
)
5697 /* Copy the substitution body to permanent storage and execute it.
5698 If have_subst is false, this is a simple matter of running the
5699 body through do_spec_1... */
5700 char *string
= save_string (body
, end_body
- body
);
5703 if (do_spec_1 (string
, 0, NULL
) < 0)
5708 /* ... but if have_subst is true, we have to process the
5709 body once for each matching switch, with %* set to the
5710 variant part of the switch. */
5711 unsigned int hard_match_len
= end_atom
- atom
;
5714 for (i
= 0; i
< n_switches
; i
++)
5715 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5716 && check_live_switch (i
, hard_match_len
))
5718 if (do_spec_1 (string
, 0,
5719 &switches
[i
].part1
[hard_match_len
]) < 0)
5721 /* Pass any arguments this switch has. */
5723 suffix_subst
= NULL
;
5731 fatal_error ("braced spec body %qs is invalid", body
);
5734 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5735 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5736 spec, or -1 if either exact match or %* is used.
5738 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5739 whose value does not begin with "no-" is obsoleted by the same value
5740 with the "no-", similarly for a switch with the "no-" prefix. */
5743 check_live_switch (int switchnum
, int prefix_length
)
5745 const char *name
= switches
[switchnum
].part1
;
5748 /* If we already processed this switch and determined if it was
5749 live or not, return our past determination. */
5750 if (switches
[switchnum
].live_cond
!= 0)
5751 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
5752 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
5753 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
5756 /* In the common case of {<at-most-one-letter>*}, a negating
5757 switch would always match, so ignore that case. We will just
5758 send the conflicting switches to the compiler phase. */
5759 if (prefix_length
>= 0 && prefix_length
<= 1)
5762 /* Now search for duplicate in a manner that depends on the name. */
5766 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5767 if (switches
[i
].part1
[0] == 'O')
5769 switches
[switchnum
].validated
= 1;
5770 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5775 case 'W': case 'f': case 'm':
5776 if (! strncmp (name
+ 1, "no-", 3))
5778 /* We have Xno-YYY, search for XYYY. */
5779 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5780 if (switches
[i
].part1
[0] == name
[0]
5781 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5783 switches
[switchnum
].validated
= 1;
5784 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5790 /* We have XYYY, search for Xno-YYY. */
5791 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5792 if (switches
[i
].part1
[0] == name
[0]
5793 && switches
[i
].part1
[1] == 'n'
5794 && switches
[i
].part1
[2] == 'o'
5795 && switches
[i
].part1
[3] == '-'
5796 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5798 switches
[switchnum
].validated
= 1;
5799 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5806 /* Otherwise the switch is live. */
5807 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
5811 /* Pass a switch to the current accumulating command
5812 in the same form that we received it.
5813 SWITCHNUM identifies the switch; it is an index into
5814 the vector of switches gcc received, which is `switches'.
5815 This cannot fail since it never finishes a command line.
5817 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5820 give_switch (int switchnum
, int omit_first_word
)
5822 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
5825 if (!omit_first_word
)
5827 do_spec_1 ("-", 0, NULL
);
5828 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5831 if (switches
[switchnum
].args
!= 0)
5834 for (p
= switches
[switchnum
].args
; *p
; p
++)
5836 const char *arg
= *p
;
5838 do_spec_1 (" ", 0, NULL
);
5841 unsigned length
= strlen (arg
);
5844 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5845 if (arg
[length
] == '.')
5847 (CONST_CAST(char *, arg
))[length
] = 0;
5851 do_spec_1 (arg
, 1, NULL
);
5853 (CONST_CAST(char *, arg
))[length
] = '.';
5854 do_spec_1 (suffix_subst
, 1, NULL
);
5857 do_spec_1 (arg
, 1, NULL
);
5861 do_spec_1 (" ", 0, NULL
);
5862 switches
[switchnum
].validated
= 1;
5865 /* Search for a file named NAME trying various prefixes including the
5866 user's -B prefix and some standard ones.
5867 Return the absolute file name found. If nothing is found, return NAME. */
5870 find_file (const char *name
)
5872 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
5873 return newname
? newname
: name
;
5876 /* Determine whether a directory exists. If LINKER, return 0 for
5877 certain fixed names not needed by the linker. */
5880 is_directory (const char *path1
, bool linker
)
5887 /* Ensure the string ends with "/.". The resulting path will be a
5888 directory even if the given path is a symbolic link. */
5889 len1
= strlen (path1
);
5890 path
= (char *) alloca (3 + len1
);
5891 memcpy (path
, path1
, len1
);
5893 if (!IS_DIR_SEPARATOR (cp
[-1]))
5894 *cp
++ = DIR_SEPARATOR
;
5898 /* Exclude directories that the linker is known to search. */
5900 && IS_DIR_SEPARATOR (path
[0])
5902 && strncmp (path
+ 1, "lib", 3) == 0)
5904 && strncmp (path
+ 1, "usr", 3) == 0
5905 && IS_DIR_SEPARATOR (path
[4])
5906 && strncmp (path
+ 5, "lib", 3) == 0)))
5909 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5912 /* Set up the various global variables to indicate that we're processing
5913 the input file named FILENAME. */
5916 set_input (const char *filename
)
5920 gcc_input_filename
= filename
;
5921 input_filename_length
= strlen (gcc_input_filename
);
5922 input_basename
= lbasename (gcc_input_filename
);
5924 /* Find a suffix starting with the last period,
5925 and set basename_length to exclude that suffix. */
5926 basename_length
= strlen (input_basename
);
5927 suffixed_basename_length
= basename_length
;
5928 p
= input_basename
+ basename_length
;
5929 while (p
!= input_basename
&& *p
!= '.')
5931 if (*p
== '.' && p
!= input_basename
)
5933 basename_length
= p
- input_basename
;
5934 input_suffix
= p
+ 1;
5939 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
5940 we will need to do a stat on the gcc_input_filename. The
5941 INPUT_STAT_SET signals that the stat is needed. */
5945 /* On fatal signals, delete all the temporary files. */
5948 fatal_signal (int signum
)
5950 signal (signum
, SIG_DFL
);
5951 delete_failure_queue ();
5952 delete_temp_files ();
5953 /* Get the same signal again, this time not handled,
5954 so its normal effect occurs. */
5955 kill (getpid (), signum
);
5958 /* Compare the contents of the two files named CMPFILE[0] and
5959 CMPFILE[1]. Return zero if they're identical, nonzero
5963 compare_files (char *cmpfile
[])
5966 FILE *temp
[2] = { NULL
, NULL
};
5972 void *map
[2] = { NULL
, NULL
};
5974 for (i
= 0; i
< 2; i
++)
5978 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
5980 error ("%s: could not determine length of compare-debug file %s",
5981 gcc_input_filename
, cmpfile
[i
]);
5986 length
[i
] = st
.st_size
;
5989 if (!ret
&& length
[0] != length
[1])
5991 error ("%s: -fcompare-debug failure (length)", gcc_input_filename
);
5996 for (i
= 0; i
< 2; i
++)
5998 int fd
= open (cmpfile
[i
], O_RDONLY
);
6001 error ("%s: could not open compare-debug file %s",
6002 gcc_input_filename
, cmpfile
[i
]);
6007 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
6010 if (map
[i
] == (void *) MAP_FAILED
)
6019 if (memcmp (map
[0], map
[1], length
[0]) != 0)
6021 error ("%s: -fcompare-debug failure", gcc_input_filename
);
6026 for (i
= 0; i
< 2; i
++)
6028 munmap ((caddr_t
) map
[i
], length
[i
]);
6037 for (i
= 0; i
< 2; i
++)
6039 temp
[i
] = fopen (cmpfile
[i
], "r");
6042 error ("%s: could not open compare-debug file %s",
6043 gcc_input_filename
, cmpfile
[i
]);
6049 if (!ret
&& temp
[0] && temp
[1])
6053 c0
= fgetc (temp
[0]);
6054 c1
= fgetc (temp
[1]);
6058 error ("%s: -fcompare-debug failure",
6059 gcc_input_filename
);
6068 for (i
= 1; i
>= 0; i
--)
6077 extern int main (int, char **);
6080 main (int argc
, char **argv
)
6084 int linker_was_run
= 0;
6085 int lang_n_infiles
= 0;
6086 int num_linker_inputs
= 0;
6087 char *explicit_link_files
;
6089 char *lto_wrapper_file
;
6091 struct user_specs
*uptr
;
6092 char **old_argv
= argv
;
6093 struct cl_decoded_option
*decoded_options
;
6094 unsigned int decoded_options_count
;
6096 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6097 on ?: in file-scope variable initializations. */
6098 asm_debug
= ASM_DEBUG_SPEC
;
6100 p
= argv
[0] + strlen (argv
[0]);
6101 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6105 xmalloc_set_program_name (progname
);
6107 expandargv (&argc
, &argv
);
6109 /* Determine if any expansions were made. */
6110 if (argv
!= old_argv
)
6111 at_file_supplied
= true;
6113 global_options
= global_options_init
;
6115 decode_cmdline_options_to_array (argc
, CONST_CAST2 (const char **, char **,
6118 &decoded_options
, &decoded_options_count
);
6120 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6121 /* Perform host dependent initialization when needed. */
6122 GCC_DRIVER_HOST_INITIALIZATION
;
6125 /* Unlock the stdio streams. */
6126 unlock_std_streams ();
6128 gcc_init_libintl ();
6130 diagnostic_initialize (global_dc
, 0);
6131 if (atexit (delete_temp_files
) != 0)
6132 fatal_error ("atexit failed");
6134 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6135 signal (SIGINT
, fatal_signal
);
6137 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6138 signal (SIGHUP
, fatal_signal
);
6140 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6141 signal (SIGTERM
, fatal_signal
);
6143 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6144 signal (SIGPIPE
, fatal_signal
);
6147 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6148 receive the signal. A different setting is inheritable */
6149 signal (SIGCHLD
, SIG_DFL
);
6152 /* Allocate the argument vector. */
6155 obstack_init (&obstack
);
6157 /* Build multilib_select, et. al from the separate lines that make up each
6158 multilib selection. */
6160 const char *const *q
= multilib_raw
;
6163 obstack_init (&multilib_obstack
);
6164 while ((p
= *q
++) != (char *) 0)
6165 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6167 obstack_1grow (&multilib_obstack
, 0);
6168 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6170 q
= multilib_matches_raw
;
6171 while ((p
= *q
++) != (char *) 0)
6172 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6174 obstack_1grow (&multilib_obstack
, 0);
6175 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6177 q
= multilib_exclusions_raw
;
6178 while ((p
= *q
++) != (char *) 0)
6179 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6181 obstack_1grow (&multilib_obstack
, 0);
6182 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6185 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6188 obstack_1grow (&multilib_obstack
, ' ');
6189 obstack_grow (&multilib_obstack
,
6190 multilib_defaults_raw
[i
],
6191 strlen (multilib_defaults_raw
[i
]));
6195 obstack_1grow (&multilib_obstack
, 0);
6196 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6199 #ifdef INIT_ENVIRONMENT
6200 /* Set up any other necessary machine specific environment variables. */
6201 xputenv (INIT_ENVIRONMENT
);
6204 /* Make a table of what switches there are (switches, n_switches).
6205 Make a table of specified input files (infiles, n_infiles).
6206 Decode switches that are handled locally. */
6208 process_command (decoded_options_count
, decoded_options
);
6210 /* Initialize the vector of specs to just the default.
6211 This means one element containing 0s, as a terminator. */
6213 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
6214 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6215 n_compilers
= n_default_compilers
;
6217 /* Read specs from a file if there is one. */
6219 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6220 spec_version
, dir_separator_str
, NULL
);
6221 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6223 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6224 /* Read the specs file unless it is a default one. */
6225 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6226 read_specs (specs_file
, TRUE
);
6230 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6231 for any override of as, ld and libraries. */
6232 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
6233 + strlen (just_machine_suffix
) + sizeof ("specs"));
6235 strcpy (specs_file
, standard_exec_prefix
);
6236 strcat (specs_file
, just_machine_suffix
);
6237 strcat (specs_file
, "specs");
6238 if (access (specs_file
, R_OK
) == 0)
6239 read_specs (specs_file
, TRUE
);
6241 /* Process any configure-time defaults specified for the command line
6242 options, via OPTION_DEFAULT_SPECS. */
6243 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6244 do_option_spec (option_default_specs
[i
].name
,
6245 option_default_specs
[i
].spec
);
6247 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6248 of the command line. */
6250 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6251 do_self_spec (driver_self_specs
[i
]);
6255 enum save_temps save
;
6257 if (!compare_debug_second
)
6259 n_switches_debug_check
[1] = n_switches
;
6260 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
6261 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
6264 do_self_spec ("%:compare-debug-self-opt()");
6265 n_switches_debug_check
[0] = n_switches
;
6266 n_switches_alloc_debug_check
[0] = n_switches_alloc
;
6267 switches_debug_check
[0] = switches
;
6269 n_switches
= n_switches_debug_check
[1];
6270 n_switches_alloc
= n_switches_alloc_debug_check
[1];
6271 switches
= switches_debug_check
[1];
6274 /* Avoid crash when computing %j in this early. */
6275 save
= save_temps_flag
;
6276 save_temps_flag
= SAVE_TEMPS_NONE
;
6278 compare_debug
= -compare_debug
;
6279 do_self_spec ("%:compare-debug-self-opt()");
6281 save_temps_flag
= save
;
6283 if (!compare_debug_second
)
6285 n_switches_debug_check
[1] = n_switches
;
6286 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
6287 switches_debug_check
[1] = switches
;
6288 compare_debug
= -compare_debug
;
6289 n_switches
= n_switches_debug_check
[0];
6290 n_switches_alloc
= n_switches_debug_check
[0];
6291 switches
= switches_debug_check
[0];
6295 /* If not cross-compiling, look for executables in the standard
6297 if (*cross_compile
== '0')
6299 if (*md_exec_prefix
)
6301 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6302 PREFIX_PRIORITY_LAST
, 0, 0);
6306 /* Process sysroot_suffix_spec. */
6307 if (*sysroot_suffix_spec
!= 0
6308 && do_spec_2 (sysroot_suffix_spec
) == 0)
6310 if (VEC_length (const_char_p
, argbuf
) > 1)
6311 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6312 else if (VEC_length (const_char_p
, argbuf
) == 1)
6313 target_sysroot_suffix
= xstrdup (VEC_last (const_char_p
, argbuf
));
6316 #ifdef HAVE_LD_SYSROOT
6317 /* Pass the --sysroot option to the linker, if it supports that. If
6318 there is a sysroot_suffix_spec, it has already been processed by
6319 this point, so target_system_root really is the system root we
6321 if (target_system_root
)
6323 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6324 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6325 set_spec ("link", XOBFINISH (&obstack
, const char *));
6329 /* Process sysroot_hdrs_suffix_spec. */
6330 if (*sysroot_hdrs_suffix_spec
!= 0
6331 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6333 if (VEC_length (const_char_p
, argbuf
) > 1)
6334 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6335 else if (VEC_length (const_char_p
, argbuf
) == 1)
6336 target_sysroot_hdrs_suffix
= xstrdup (VEC_last (const_char_p
, argbuf
));
6339 /* Look for startfiles in the standard places. */
6340 if (*startfile_prefix_spec
!= 0
6341 && do_spec_2 (startfile_prefix_spec
) == 0
6342 && do_spec_1 (" ", 0, NULL
) == 0)
6346 FOR_EACH_VEC_ELT (const_char_p
, argbuf
, ndx
, arg
)
6347 add_sysrooted_prefix (&startfile_prefixes
, arg
, "BINUTILS",
6348 PREFIX_PRIORITY_LAST
, 0, 1);
6350 /* We should eventually get rid of all these and stick to
6351 startfile_prefix_spec exclusively. */
6352 else if (*cross_compile
== '0' || target_system_root
)
6354 if (*md_startfile_prefix
)
6355 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6356 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6358 if (*md_startfile_prefix_1
)
6359 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6360 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6362 /* If standard_startfile_prefix is relative, base it on
6363 standard_exec_prefix. This lets us move the installed tree
6364 as a unit. If GCC_EXEC_PREFIX is defined, base
6365 standard_startfile_prefix on that as well.
6367 If the prefix is relative, only search it for native compilers;
6368 otherwise we will search a directory containing host libraries. */
6369 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6370 add_sysrooted_prefix (&startfile_prefixes
,
6371 standard_startfile_prefix
, "BINUTILS",
6372 PREFIX_PRIORITY_LAST
, 0, 1);
6373 else if (*cross_compile
== '0')
6375 add_prefix (&startfile_prefixes
,
6376 concat (gcc_exec_prefix
6377 ? gcc_exec_prefix
: standard_exec_prefix
,
6379 standard_startfile_prefix
, NULL
),
6380 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6383 /* Sysrooted prefixes are relocated because target_system_root is
6384 also relocated by gcc_exec_prefix. */
6385 if (*standard_startfile_prefix_1
)
6386 add_sysrooted_prefix (&startfile_prefixes
,
6387 standard_startfile_prefix_1
, "BINUTILS",
6388 PREFIX_PRIORITY_LAST
, 0, 1);
6389 if (*standard_startfile_prefix_2
)
6390 add_sysrooted_prefix (&startfile_prefixes
,
6391 standard_startfile_prefix_2
, "BINUTILS",
6392 PREFIX_PRIORITY_LAST
, 0, 1);
6395 /* Process any user specified specs in the order given on the command
6397 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6399 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6401 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6404 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6405 if (gcc_exec_prefix
)
6406 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6407 spec_version
, dir_separator_str
, NULL
);
6409 /* Now we have the specs.
6410 Set the `valid' bits for switches that match anything in any spec. */
6412 validate_all_switches ();
6414 /* Now that we have the switches and the specs, set
6415 the subdirectory based on the options. */
6416 set_multilib_dir ();
6418 /* Set up to remember the pathname of gcc and any options
6419 needed for collect. We use argv[0] instead of progname because
6420 we need the complete pathname. */
6421 obstack_init (&collect_obstack
);
6422 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6423 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6424 xputenv (XOBFINISH (&collect_obstack
, char *));
6426 /* Set up to remember the pathname of the lto wrapper. */
6428 lto_wrapper_file
= find_a_file (&exec_prefixes
, "lto-wrapper", X_OK
, false);
6429 if (lto_wrapper_file
)
6431 lto_wrapper_spec
= lto_wrapper_file
;
6432 obstack_init (&collect_obstack
);
6433 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
6434 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
6435 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
6436 strlen (lto_wrapper_spec
) + 1);
6437 xputenv (XOBFINISH (&collect_obstack
, char *));
6440 /* Warn about any switches that no pass was interested in. */
6442 for (i
= 0; (int) i
< n_switches
; i
++)
6443 if (! switches
[i
].validated
)
6444 error ("unrecognized option %<-%s%>", switches
[i
].part1
);
6446 /* Obey some of the options. */
6448 if (print_search_dirs
)
6450 printf (_("install: %s%s\n"),
6451 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
6452 gcc_exec_prefix
? "" : machine_suffix
);
6453 printf (_("programs: %s\n"),
6454 build_search_list (&exec_prefixes
, "", false, false));
6455 printf (_("libraries: %s\n"),
6456 build_search_list (&startfile_prefixes
, "", false, true));
6460 if (print_file_name
)
6462 printf ("%s\n", find_file (print_file_name
));
6466 if (print_prog_name
)
6468 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6469 printf ("%s\n", (newname
? newname
: print_prog_name
));
6473 if (print_multi_lib
)
6475 print_multilib_info ();
6479 if (print_multi_directory
)
6481 if (multilib_dir
== NULL
)
6484 printf ("%s\n", multilib_dir
);
6490 if (target_system_root
)
6492 if (target_sysroot_suffix
)
6493 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
6495 printf ("%s\n", target_system_root
);
6500 if (print_multi_os_directory
)
6502 if (multilib_os_dir
== NULL
)
6505 printf ("%s\n", multilib_os_dir
);
6509 if (print_sysroot_headers_suffix
)
6511 if (*sysroot_hdrs_suffix_spec
)
6513 printf("%s\n", (target_sysroot_hdrs_suffix
6514 ? target_sysroot_hdrs_suffix
6519 /* The error status indicates that only one set of fixed
6520 headers should be built. */
6521 fatal_error ("not configured with sysroot headers suffix");
6524 if (print_help_list
)
6530 printf (_("\nFor bug reporting instructions, please see:\n"));
6531 printf ("%s.\n", bug_report_url
);
6536 /* We do not exit here. Instead we have created a fake input file
6537 called 'help-dummy' which needs to be compiled, and we pass this
6538 on the various sub-processes, along with the --help switch.
6539 Ensure their output appears after ours. */
6540 fputc ('\n', stdout
);
6546 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
6548 printf ("Copyright %s 2011 Free Software Foundation, Inc.\n",
6550 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
6551 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
6556 /* We do not exit here. We use the same mechanism of --help to print
6557 the version of the sub-processes. */
6558 fputc ('\n', stdout
);
6567 fnotice (stderr
, "Target: %s\n", spec_machine
);
6568 fnotice (stderr
, "Configured with: %s\n", configuration_arguments
);
6570 #ifdef THREAD_MODEL_SPEC
6571 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6572 but there's no point in doing all this processing just to get
6573 thread_model back. */
6574 obstack_init (&obstack
);
6575 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6576 obstack_1grow (&obstack
, '\0');
6577 thrmod
= XOBFINISH (&obstack
, const char *);
6579 thrmod
= thread_model
;
6582 fnotice (stderr
, "Thread model: %s\n", thrmod
);
6584 /* compiler_version is truncated at the first space when initialized
6585 from version string, so truncate version_string at the first space
6586 before comparing. */
6587 for (n
= 0; version_string
[n
]; n
++)
6588 if (version_string
[n
] == ' ')
6591 if (! strncmp (version_string
, compiler_version
, n
)
6592 && compiler_version
[n
] == 0)
6593 fnotice (stderr
, "gcc version %s %s\n", version_string
,
6596 fnotice (stderr
, "gcc driver version %s %sexecuting gcc version %s\n",
6597 version_string
, pkgversion_string
, compiler_version
);
6603 if (n_infiles
== added_libraries
)
6604 fatal_error ("no input files");
6609 /* Make a place to record the compiler output file names
6610 that correspond to the input files. */
6613 i
+= lang_specific_extra_outfiles
;
6614 outfiles
= XCNEWVEC (const char *, i
);
6616 /* Record which files were specified explicitly as link input. */
6618 explicit_link_files
= XCNEWVEC (char, n_infiles
);
6620 combine_inputs
= have_o
|| flag_wpa
;
6622 for (i
= 0; (int) i
< n_infiles
; i
++)
6624 const char *name
= infiles
[i
].name
;
6625 struct compiler
*compiler
= lookup_compiler (name
,
6627 infiles
[i
].language
);
6629 if (compiler
&& !(compiler
->combinable
))
6630 combine_inputs
= false;
6632 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6633 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6634 infiles
[i
].incompiler
= compiler
;
6638 input_file_compiler
= compiler
;
6639 infiles
[i
].incompiler
= compiler
;
6643 /* Since there is no compiler for this input file, assume it is a
6645 explicit_link_files
[i
] = 1;
6646 infiles
[i
].incompiler
= NULL
;
6648 infiles
[i
].compiled
= false;
6649 infiles
[i
].preprocessed
= false;
6652 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
6653 fatal_error ("cannot specify -o with -c, -S or -E with multiple files");
6655 for (i
= 0; (int) i
< n_infiles
; i
++)
6657 int this_file_error
= 0;
6659 /* Tell do_spec what to substitute for %i. */
6661 input_file_number
= i
;
6662 set_input (infiles
[i
].name
);
6664 if (infiles
[i
].compiled
)
6667 /* Use the same thing in %o, unless cp->spec says otherwise. */
6669 outfiles
[i
] = gcc_input_filename
;
6671 /* Figure out which compiler from the file's suffix. */
6674 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6675 infiles
[i
].language
);
6677 if (input_file_compiler
)
6679 /* Ok, we found an applicable compiler. Run its spec. */
6681 if (input_file_compiler
->spec
[0] == '#')
6683 error ("%s: %s compiler not installed on this system",
6684 gcc_input_filename
, &input_file_compiler
->spec
[1]);
6685 this_file_error
= 1;
6691 if (debug_check_temp_file
[0])
6692 free (debug_check_temp_file
[0]);
6693 debug_check_temp_file
[0] = NULL
;
6695 if (debug_check_temp_file
[1])
6696 free (debug_check_temp_file
[1]);
6697 debug_check_temp_file
[1] = NULL
;
6700 value
= do_spec (input_file_compiler
->spec
);
6701 infiles
[i
].compiled
= true;
6703 this_file_error
= 1;
6704 else if (compare_debug
&& debug_check_temp_file
[0])
6707 inform (0, "recompiling with -fcompare-debug");
6709 compare_debug
= -compare_debug
;
6710 n_switches
= n_switches_debug_check
[1];
6711 n_switches_alloc
= n_switches_alloc_debug_check
[1];
6712 switches
= switches_debug_check
[1];
6714 value
= do_spec (input_file_compiler
->spec
);
6716 compare_debug
= -compare_debug
;
6717 n_switches
= n_switches_debug_check
[0];
6718 n_switches_alloc
= n_switches_alloc_debug_check
[0];
6719 switches
= switches_debug_check
[0];
6723 error ("during -fcompare-debug recompilation");
6724 this_file_error
= 1;
6727 gcc_assert (debug_check_temp_file
[1]
6728 && strcmp (debug_check_temp_file
[0],
6729 debug_check_temp_file
[1]));
6732 inform (0, "comparing final insns dumps");
6734 if (compare_files (debug_check_temp_file
))
6735 this_file_error
= 1;
6740 if (debug_check_temp_file
[0])
6741 free (debug_check_temp_file
[0]);
6742 debug_check_temp_file
[0] = NULL
;
6744 if (debug_check_temp_file
[1])
6745 free (debug_check_temp_file
[1]);
6746 debug_check_temp_file
[1] = NULL
;
6751 /* If this file's name does not contain a recognized suffix,
6752 record it as explicit linker input. */
6755 explicit_link_files
[i
] = 1;
6757 /* Clear the delete-on-failure queue, deleting the files in it
6758 if this compilation failed. */
6760 if (this_file_error
)
6762 delete_failure_queue ();
6765 /* If this compilation succeeded, don't delete those files later. */
6766 clear_failure_queue ();
6769 /* Reset the input file name to the first compile/object file name, for use
6770 with %b in LINK_SPEC. We use the first input file that we can find
6771 a compiler to compile it instead of using infiles.language since for
6772 languages other than C we use aliases that we then lookup later. */
6777 for (i
= 0; i
< n_infiles
; i
++)
6778 if (infiles
[i
].incompiler
6779 || (infiles
[i
].language
&& infiles
[i
].language
[0] != '*'))
6781 set_input (infiles
[i
].name
);
6788 /* Make sure INPUT_FILE_NUMBER points to first available open
6790 input_file_number
= n_infiles
;
6791 if (lang_specific_pre_link ())
6795 /* Determine if there are any linker input files. */
6796 num_linker_inputs
= 0;
6797 for (i
= 0; (int) i
< n_infiles
; i
++)
6798 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6799 num_linker_inputs
++;
6801 /* Run ld to link all the compiler output files. */
6803 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
6805 int tmp
= execution_count
;
6806 #ifdef HAVE_LTO_PLUGIN
6807 const char *fno_use_linker_plugin
= "fno-use-linker-plugin";
6809 const char *fuse_linker_plugin
= "fuse-linker-plugin";
6812 /* We'll use ld if we can't find collect2. */
6813 if (! strcmp (linker_name_spec
, "collect2"))
6815 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
6817 linker_name_spec
= "ld";
6820 #ifdef HAVE_LTO_PLUGIN
6821 if (!switch_matches (fno_use_linker_plugin
,
6822 fno_use_linker_plugin
+ strlen (fno_use_linker_plugin
), 0))
6824 if (switch_matches (fuse_linker_plugin
,
6825 fuse_linker_plugin
+ strlen (fuse_linker_plugin
), 0))
6828 linker_plugin_file_spec
= find_a_file (&exec_prefixes
,
6829 LTOPLUGINSONAME
, R_OK
,
6831 if (!linker_plugin_file_spec
)
6832 fatal_error ("-fuse-linker-plugin, but " LTOPLUGINSONAME
" not found");
6834 lto_gcc_spec
= argv
[0];
6836 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6838 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
6839 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
6841 if (print_subprocess_help
== 1)
6843 printf (_("\nLinker options\n==============\n\n"));
6844 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
6845 " to the linker.\n\n"));
6848 value
= do_spec (link_command_spec
);
6851 linker_was_run
= (tmp
!= execution_count
);
6854 /* If options said don't run linker,
6855 complain about input files to be given to the linker. */
6857 if (! linker_was_run
&& !seen_error ())
6858 for (i
= 0; (int) i
< n_infiles
; i
++)
6859 if (explicit_link_files
[i
]
6860 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
6861 warning (0, "%s: linker input file unused because linking not done",
6864 /* Delete some or all of the temporary files we made. */
6867 delete_failure_queue ();
6868 delete_temp_files ();
6870 if (print_help_list
)
6872 printf (("\nFor bug reporting instructions, please see:\n"));
6873 printf ("%s\n", bug_report_url
);
6877 return (signal_count
!= 0 ? 2
6878 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
6882 /* Find the proper compilation spec for the file name NAME,
6883 whose length is LENGTH. LANGUAGE is the specified language,
6884 or 0 if this file is to be passed to the linker. */
6886 static struct compiler
*
6887 lookup_compiler (const char *name
, size_t length
, const char *language
)
6889 struct compiler
*cp
;
6891 /* If this was specified by the user to be a linker input, indicate that. */
6892 if (language
!= 0 && language
[0] == '*')
6895 /* Otherwise, look for the language, if one is spec'd. */
6898 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6899 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6902 error ("language %s not recognized", language
);
6906 /* Look for a suffix. */
6907 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6909 if (/* The suffix `-' matches only the file name `-'. */
6910 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6911 || (strlen (cp
->suffix
) < length
6912 /* See if the suffix matches the end of NAME. */
6913 && !strcmp (cp
->suffix
,
6914 name
+ length
- strlen (cp
->suffix
))
6919 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6920 /* Look again, but case-insensitively this time. */
6922 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6924 if (/* The suffix `-' matches only the file name `-'. */
6925 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6926 || (strlen (cp
->suffix
) < length
6927 /* See if the suffix matches the end of NAME. */
6928 && ((!strcmp (cp
->suffix
,
6929 name
+ length
- strlen (cp
->suffix
))
6930 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6931 && !strcasecmp (cp
->suffix
,
6932 name
+ length
- strlen (cp
->suffix
)))
6938 if (cp
>= compilers
)
6940 if (cp
->spec
[0] != '@')
6941 /* A non-alias entry: return it. */
6944 /* An alias entry maps a suffix to a language.
6945 Search for the language; pass 0 for NAME and LENGTH
6946 to avoid infinite recursion if language not found. */
6947 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6953 save_string (const char *s
, int len
)
6955 char *result
= XNEWVEC (char, len
+ 1);
6957 memcpy (result
, s
, len
);
6963 pfatal_with_name (const char *name
)
6965 perror_with_name (name
);
6966 delete_temp_files ();
6971 perror_with_name (const char *name
)
6973 error ("%s: %m", name
);
6977 validate_switches_from_spec (const char *spec
)
6979 const char *p
= spec
;
6982 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6983 /* We have a switch spec. */
6984 p
= validate_switches (p
+ 1);
6988 validate_all_switches (void)
6990 struct compiler
*comp
;
6991 struct spec_list
*spec
;
6993 for (comp
= compilers
; comp
->spec
; comp
++)
6994 validate_switches_from_spec (comp
->spec
);
6996 /* Look through the linked list of specs read from the specs file. */
6997 for (spec
= specs
; spec
; spec
= spec
->next
)
6998 validate_switches_from_spec (*spec
->ptr_spec
);
7000 validate_switches_from_spec (link_command_spec
);
7003 /* Look at the switch-name that comes after START
7004 and mark as valid all supplied switches that match it. */
7007 validate_switches (const char *start
)
7009 const char *p
= start
;
7013 bool suffix
= false;
7014 bool starred
= false;
7016 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7025 if (*p
== '.' || *p
== ',')
7029 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7030 || *p
== ',' || *p
== '.' || *p
== '@')
7035 starred
= true, p
++;
7041 /* Mark all matching switches as valid. */
7042 for (i
= 0; i
< n_switches
; i
++)
7043 if (!strncmp (switches
[i
].part1
, atom
, len
)
7044 && (starred
|| switches
[i
].part1
[len
] == 0))
7045 switches
[i
].validated
= 1;
7049 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
7052 if (*p
&& p
[-1] == ':')
7054 while (*p
&& *p
!= ';' && *p
!= '}')
7059 if (*p
== '{' || *p
== '<')
7060 p
= validate_switches (p
+1);
7061 else if (p
[0] == 'W' && p
[1] == '{')
7062 p
= validate_switches (p
+2);
7069 if (*p
&& p
[-1] == ';')
7083 static struct mdswitchstr
*mdswitches
;
7084 static int n_mdswitches
;
7086 /* Check whether a particular argument was used. The first time we
7087 canonicalize the switches to keep only the ones we care about. */
7090 used_arg (const char *p
, int len
)
7095 const char *replace
;
7100 static struct mswitchstr
*mswitches
;
7101 static int n_mswitches
;
7106 struct mswitchstr
*matches
;
7110 /* Break multilib_matches into the component strings of string
7111 and replacement string. */
7112 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7117 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
7119 q
= multilib_matches
;
7128 fatal_error ("multilib spec %qs is invalid",
7133 matches
[i
].len
= q
- matches
[i
].str
;
7135 matches
[i
].replace
= ++q
;
7136 while (*q
!= ';' && *q
!= '\0')
7139 goto invalid_matches
;
7142 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7148 /* Now build a list of the replacement string for switches that we care
7149 about. Make sure we allocate at least one entry. This prevents
7150 xmalloc from calling fatal, and prevents us from re-executing this
7153 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7154 for (i
= 0; i
< n_switches
; i
++)
7155 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
7157 int xlen
= strlen (switches
[i
].part1
);
7158 for (j
= 0; j
< cnt
; j
++)
7159 if (xlen
== matches
[j
].len
7160 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7162 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7163 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7164 mswitches
[n_mswitches
].replace
= (char *) 0;
7165 mswitches
[n_mswitches
].rep_len
= 0;
7171 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7172 on the command line nor any options mutually incompatible with
7174 for (i
= 0; i
< n_mdswitches
; i
++)
7178 for (q
= multilib_options
; *q
!= '\0'; q
++)
7184 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7185 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7187 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7194 if (*q
!= ' ' && *q
!= '\0')
7196 while (*r
!= ' ' && *r
!= '\0')
7199 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7202 if (used_arg (r
, q
- r
))
7207 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7208 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7209 mswitches
[n_mswitches
].replace
= (char *) 0;
7210 mswitches
[n_mswitches
].rep_len
= 0;
7223 for (i
= 0; i
< n_mswitches
; i
++)
7224 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7231 default_arg (const char *p
, int len
)
7235 for (i
= 0; i
< n_mdswitches
; i
++)
7236 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7242 /* Work out the subdirectory to use based on the options. The format of
7243 multilib_select is a list of elements. Each element is a subdirectory
7244 name followed by a list of options followed by a semicolon. The format
7245 of multilib_exclusions is the same, but without the preceding
7246 directory. First gcc will check the exclusions, if none of the options
7247 beginning with an exclamation point are present, and all of the other
7248 options are present, then we will ignore this completely. Passing
7249 that, gcc will consider each multilib_select in turn using the same
7250 rules for matching the options. If a match is found, that subdirectory
7254 set_multilib_dir (void)
7257 unsigned int this_path_len
;
7258 const char *this_path
, *this_arg
;
7259 const char *start
, *end
;
7261 int ok
, ndfltok
, first
;
7264 start
= multilib_defaults
;
7265 while (*start
== ' ' || *start
== '\t')
7267 while (*start
!= '\0')
7270 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7272 while (*start
== ' ' || *start
== '\t')
7280 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
7281 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7283 while (*start
== ' ' || *start
== '\t')
7289 for (end
= start
+ 1;
7290 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7293 obstack_grow (&multilib_obstack
, start
, end
- start
);
7294 obstack_1grow (&multilib_obstack
, 0);
7295 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
7296 mdswitches
[i
++].len
= end
- start
;
7303 p
= multilib_exclusions
;
7306 /* Ignore newlines. */
7313 /* Check the arguments. */
7320 fatal_error ("multilib exclusions %qs is invalid",
7321 multilib_exclusions
);
7331 while (*p
!= ' ' && *p
!= ';')
7334 goto invalid_exclusions
;
7338 if (*this_arg
!= '!')
7346 ok
= used_arg (this_arg
, p
- this_arg
);
7361 p
= multilib_select
;
7364 /* Ignore newlines. */
7371 /* Get the initial path. */
7378 fatal_error ("multilib select %qs is invalid",
7383 this_path_len
= p
- this_path
;
7385 /* Check the arguments. */
7392 goto invalid_select
;
7401 while (*p
!= ' ' && *p
!= ';')
7404 goto invalid_select
;
7408 if (*this_arg
!= '!')
7416 /* If this is a default argument, we can just ignore it.
7417 This is true even if this_arg begins with '!'. Beginning
7418 with '!' does not mean that this argument is necessarily
7419 inappropriate for this library: it merely means that
7420 there is a more specific library which uses this
7421 argument. If this argument is a default, we need not
7422 consider that more specific library. */
7423 ok
= used_arg (this_arg
, p
- this_arg
);
7430 if (default_arg (this_arg
, p
- this_arg
))
7439 if (this_path_len
!= 1
7440 || this_path
[0] != '.')
7442 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
7445 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7446 new_multilib_dir
[this_path_len
] = '\0';
7447 q
= strchr (new_multilib_dir
, ':');
7450 multilib_dir
= new_multilib_dir
;
7457 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7459 while (q
< end
&& *q
!= ':')
7463 char *new_multilib_os_dir
= XNEWVEC (char, end
- q
);
7464 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7465 new_multilib_os_dir
[end
- q
- 1] = '\0';
7466 multilib_os_dir
= new_multilib_os_dir
;
7474 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7475 && strcmp (multilib_os_dir
, ".") == 0)
7477 free (CONST_CAST (char *, multilib_os_dir
));
7478 multilib_os_dir
= NULL
;
7480 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7481 multilib_os_dir
= multilib_dir
;
7484 /* Print out the multiple library subdirectory selection
7485 information. This prints out a series of lines. Each line looks
7486 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7487 required. Only the desired options are printed out, the negative
7488 matches. The options are print without a leading dash. There are
7489 no spaces to make it easy to use the information in the shell.
7490 Each subdirectory is printed only once. This assumes the ordering
7491 generated by the genmultilib script. Also, we leave out ones that match
7495 print_multilib_info (void)
7497 const char *p
= multilib_select
;
7498 const char *last_path
= 0, *this_path
;
7500 unsigned int last_path_len
= 0;
7505 /* Ignore newlines. */
7512 /* Get the initial path. */
7519 fatal_error ("multilib select %qs is invalid", multilib_select
);
7525 /* When --disable-multilib was used but target defines
7526 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7527 to find multilib_os_dir, so skip them from output. */
7528 if (this_path
[0] == '.' && this_path
[1] == ':')
7531 /* Check for matches with the multilib_exclusions. We don't bother
7532 with the '!' in either list. If any of the exclusion rules match
7533 all of its options with the select rule, we skip it. */
7535 const char *e
= multilib_exclusions
;
7536 const char *this_arg
;
7541 /* Ignore newlines. */
7548 /* Check the arguments. */
7557 fatal_error ("multilib exclusion %qs is invalid",
7558 multilib_exclusions
);
7569 while (*e
!= ' ' && *e
!= ';')
7572 goto invalid_exclusion
;
7580 int len
= e
- this_arg
;
7583 goto invalid_select
;
7587 while (*q
!= ' ' && *q
!= ';')
7590 goto invalid_select
;
7594 if (! strncmp (arg
, this_arg
,
7595 (len
< q
- arg
) ? q
- arg
: len
)
7596 || default_arg (this_arg
, e
- this_arg
))
7626 /* If this is a duplicate, skip it. */
7627 skip
= (last_path
!= 0
7628 && (unsigned int) (p
- this_path
) == last_path_len
7629 && ! strncmp (last_path
, this_path
, last_path_len
));
7631 last_path
= this_path
;
7632 last_path_len
= p
- this_path
;
7635 /* If this directory requires any default arguments, we can skip
7636 it. We will already have printed a directory identical to
7637 this one which does not require that default argument. */
7648 goto invalid_select
;
7655 while (*q
!= ' ' && *q
!= ';')
7658 goto invalid_select
;
7663 && default_arg (arg
, q
- arg
))
7678 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7689 goto invalid_select
;
7697 use_arg
= *p
!= '!';
7702 while (*p
!= ' ' && *p
!= ';')
7705 goto invalid_select
;
7717 /* If there are extra options, print them now. */
7718 if (multilib_extra
&& *multilib_extra
)
7720 int print_at
= TRUE
;
7723 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7744 /* getenv built-in spec function.
7746 Returns the value of the environment variable given by its first
7747 argument, concatenated with the second argument. If the
7748 environment variable is not defined, a fatal error is issued. */
7751 getenv_spec_function (int argc
, const char **argv
)
7761 value
= getenv (argv
[0]);
7763 fatal_error ("environment variable %qs not defined", argv
[0]);
7765 /* We have to escape every character of the environment variable so
7766 they are not interpreted as active spec characters. A
7767 particularly painful case is when we are reading a variable
7768 holding a windows path complete with \ separators. */
7769 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
7770 result
= XNEWVAR (char, len
);
7771 for (ptr
= result
; *value
; ptr
+= 2)
7777 strcpy (ptr
, argv
[1]);
7782 /* if-exists built-in spec function.
7784 Checks to see if the file specified by the absolute pathname in
7785 ARGS exists. Returns that pathname if found.
7787 The usual use for this function is to check for a library file
7788 (whose name has been expanded with %s). */
7791 if_exists_spec_function (int argc
, const char **argv
)
7793 /* Must have only one argument. */
7794 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7800 /* if-exists-else built-in spec function.
7802 This is like if-exists, but takes an additional argument which
7803 is returned if the first argument does not exist. */
7806 if_exists_else_spec_function (int argc
, const char **argv
)
7808 /* Must have exactly two arguments. */
7812 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7818 /* replace-outfile built-in spec function.
7820 This looks for the first argument in the outfiles array's name and
7821 replaces it with the second argument. */
7824 replace_outfile_spec_function (int argc
, const char **argv
)
7827 /* Must have exactly two arguments. */
7831 for (i
= 0; i
< n_infiles
; i
++)
7833 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7834 outfiles
[i
] = xstrdup (argv
[1]);
7839 /* remove-outfile built-in spec function.
7841 * This looks for the first argument in the outfiles array's name and
7845 remove_outfile_spec_function (int argc
, const char **argv
)
7848 /* Must have exactly one argument. */
7852 for (i
= 0; i
< n_infiles
; i
++)
7854 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7860 /* Given two version numbers, compares the two numbers.
7861 A version number must match the regular expression
7862 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
7865 compare_version_strings (const char *v1
, const char *v2
)
7870 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
7871 REG_EXTENDED
| REG_NOSUB
) != 0)
7873 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
7874 if (rresult
== REG_NOMATCH
)
7875 fatal_error ("invalid version number %qs", v1
);
7876 else if (rresult
!= 0)
7878 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
7879 if (rresult
== REG_NOMATCH
)
7880 fatal_error ("invalid version number %qs", v2
);
7881 else if (rresult
!= 0)
7884 return strverscmp (v1
, v2
);
7888 /* version_compare built-in spec function.
7890 This takes an argument of the following form:
7892 <comparison-op> <arg1> [<arg2>] <switch> <result>
7894 and produces "result" if the comparison evaluates to true,
7895 and nothing if it doesn't.
7897 The supported <comparison-op> values are:
7899 >= true if switch is a later (or same) version than arg1
7901 < true if switch is an earlier version than arg1
7903 >< true if switch is arg1 or later, and earlier than arg2
7904 <> true if switch is earlier than arg1 or is arg2 or later
7906 If the switch is not present, the condition is false unless
7907 the first character of the <comparison-op> is '!'.
7910 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
7911 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
7914 version_compare_spec_function (int argc
, const char **argv
)
7918 const char *switch_value
= NULL
;
7923 fatal_error ("too few arguments to %%:version-compare");
7924 if (argv
[0][0] == '\0')
7926 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
7928 if (argc
!= nargs
+ 3)
7929 fatal_error ("too many arguments to %%:version-compare");
7931 switch_len
= strlen (argv
[nargs
+ 1]);
7932 for (i
= 0; i
< n_switches
; i
++)
7933 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
7934 && check_live_switch (i
, switch_len
))
7935 switch_value
= switches
[i
].part1
+ switch_len
;
7937 if (switch_value
== NULL
)
7941 comp1
= compare_version_strings (switch_value
, argv
[1]);
7943 comp2
= compare_version_strings (switch_value
, argv
[2]);
7945 comp2
= -1; /* This value unused. */
7948 switch (argv
[0][0] << 8 | argv
[0][1])
7950 case '>' << 8 | '=':
7951 result
= comp1
>= 0;
7953 case '!' << 8 | '<':
7954 result
= comp1
>= 0 || switch_value
== NULL
;
7959 case '!' << 8 | '>':
7960 result
= comp1
< 0 || switch_value
== NULL
;
7962 case '>' << 8 | '<':
7963 result
= comp1
>= 0 && comp2
< 0;
7965 case '<' << 8 | '>':
7966 result
= comp1
< 0 || comp2
>= 0;
7970 fatal_error ("unknown operator %qs in %%:version-compare", argv
[0]);
7975 return argv
[nargs
+ 2];
7978 /* %:include builtin spec function. This differs from %include in that it
7979 can be nested inside a spec, and thus be conditionalized. It takes
7980 one argument, the filename, and looks for it in the startfile path.
7981 The result is always NULL, i.e. an empty expansion. */
7984 include_spec_function (int argc
, const char **argv
)
7991 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
7992 read_specs (file
? file
: argv
[0], FALSE
);
7997 /* %:find-file spec function. This function replaces its argument by
7998 the file found thru find_file, that is the -print-file-name gcc
8001 find_file_spec_function (int argc
, const char **argv
)
8008 file
= find_file (argv
[0]);
8013 /* %:find-plugindir spec function. This function replaces its argument
8014 by the -iplugindir=<dir> option. `dir' is found thru find_file, that
8015 is the -print-file-name gcc program option. */
8017 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
8024 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
8029 /* %:print-asm-header spec function. Print a banner to say that the
8030 following output is from the assembler. */
8033 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
8034 const char **argv ATTRIBUTE_UNUSED
)
8036 printf (_("Assembler options\n=================\n\n"));
8037 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
8042 /* Compute a timestamp to initialize flag_random_seed. */
8045 get_local_tick (void)
8049 /* Get some more or less random data. */
8050 #ifdef HAVE_GETTIMEOFDAY
8054 gettimeofday (&tv
, NULL
);
8055 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
8059 time_t now
= time (NULL
);
8061 if (now
!= (time_t)-1)
8062 ret
= (unsigned) now
;
8069 /* %:compare-debug-dump-opt spec function. Save the last argument,
8070 expected to be the last -fdump-final-insns option, or generate a
8074 compare_debug_dump_opt_spec_function (int arg
,
8075 const char **argv ATTRIBUTE_UNUSED
)
8080 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
8083 fatal_error ("too many arguments to %%:compare-debug-dump-opt");
8085 do_spec_2 ("%{fdump-final-insns=*:%*}");
8086 do_spec_1 (" ", 0, NULL
);
8088 if (VEC_length (const_char_p
, argbuf
) > 0
8089 && strcmp (argv
[VEC_length (const_char_p
, argbuf
) - 1], "."))
8094 name
= xstrdup (argv
[VEC_length (const_char_p
, argbuf
) - 1]);
8099 const char *ext
= NULL
;
8101 if (VEC_length (const_char_p
, argbuf
) > 0)
8103 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
8106 else if (!compare_debug
)
8109 do_spec_2 ("%g.gkd");
8111 do_spec_1 (" ", 0, NULL
);
8113 gcc_assert (VEC_length (const_char_p
, argbuf
) > 0);
8115 name
= concat (VEC_last (const_char_p
, argbuf
), ext
, NULL
);
8117 ret
= concat ("-fdump-final-insns=", name
, NULL
);
8120 which
= compare_debug
< 0;
8121 debug_check_temp_file
[which
] = name
;
8125 unsigned HOST_WIDE_INT value
= get_local_tick () ^ getpid ();
8127 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
8131 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
8140 static const char *debug_auxbase_opt
;
8142 /* %:compare-debug-self-opt spec function. Expands to the options
8143 that are to be passed in the second compilation of
8147 compare_debug_self_opt_spec_function (int arg
,
8148 const char **argv ATTRIBUTE_UNUSED
)
8151 fatal_error ("too many arguments to %%:compare-debug-self-opt");
8153 if (compare_debug
>= 0)
8156 do_spec_2 ("%{c|S:%{o*:%*}}");
8157 do_spec_1 (" ", 0, NULL
);
8159 if (VEC_length (const_char_p
, argbuf
) > 0)
8160 debug_auxbase_opt
= concat ("-auxbase-strip ",
8161 VEC_last (const_char_p
, argbuf
),
8164 debug_auxbase_opt
= NULL
;
8167 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
8168 %<fdump-final-insns=* -w -S -o %j \
8169 %{!fcompare-debug-second:-fcompare-debug-second} \
8170 ", compare_debug_opt
, NULL
);
8173 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
8174 options that are to be passed in the second compilation of
8175 compare-debug. It expects, as an argument, the basename of the
8176 current input file name, with the .gk suffix appended to it. */
8179 compare_debug_auxbase_opt_spec_function (int arg
,
8186 fatal_error ("too few arguments to %%:compare-debug-auxbase-opt");
8189 fatal_error ("too many arguments to %%:compare-debug-auxbase-opt");
8191 if (compare_debug
>= 0)
8194 len
= strlen (argv
[0]);
8195 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
8196 fatal_error ("argument to %%:compare-debug-auxbase-opt "
8197 "does not end in .gk");
8199 if (debug_auxbase_opt
)
8200 return debug_auxbase_opt
;
8202 #define OPT "-auxbase "
8205 name
= (char*) xmalloc (sizeof (OPT
) + len
);
8206 memcpy (name
, OPT
, sizeof (OPT
) - 1);
8207 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
8208 name
[sizeof (OPT
) - 1 + len
] = '\0';
8215 /* %:pass-through-libs spec function. Finds all -l options and input
8216 file names in the lib spec passed to it, and makes a list of them
8217 prepended with the plugin option to cause them to be passed through
8218 to the final link after all the new object files have been added. */
8221 pass_through_libs_spec_func (int argc
, const char **argv
)
8223 char *prepended
= xstrdup (" ");
8225 /* Shlemiel the painter's algorithm. Innately horrible, but at least
8226 we know that there will never be more than a handful of strings to
8227 concat, and it's only once per run, so it's not worth optimising. */
8228 for (n
= 0; n
< argc
; n
++)
8230 char *old
= prepended
;
8231 /* Anything that isn't an option is a full path to an output
8232 file; pass it through if it ends in '.a'. Among options,
8234 if (argv
[n
][0] == '-' && argv
[n
][1] == 'l')
8236 const char *lopt
= argv
[n
] + 2;
8237 /* Handle both joined and non-joined -l options. If for any
8238 reason there's a trailing -l with no joined or following
8239 arg just discard it. */
8240 if (!*lopt
&& ++n
>= argc
)
8244 prepended
= concat (prepended
, "-plugin-opt=-pass-through=-l",
8247 else if (!strcmp (".a", argv
[n
] + strlen (argv
[n
]) - 2))
8249 prepended
= concat (prepended
, "-plugin-opt=-pass-through=",
8250 argv
[n
], " ", NULL
);
8252 if (prepended
!= old
)