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* remove all occurrences of all switches beginning with -S from the
396 Call the named function FUNCTION, passing it ARGS. ARGS is
397 first processed as a nested spec string, then split into an
398 argument vector in the usual fashion. The function returns
399 a string which is processed as if it had appeared literally
400 as part of the current spec.
401 %{S} substitutes the -S switch, if that switch was given to GCC.
402 If that switch was not specified, this substitutes nothing.
403 Here S is a metasyntactic variable.
404 %{S*} substitutes all the switches specified to GCC whose names start
405 with -S. This is used for -o, -I, etc; switches that take
406 arguments. GCC considers `-o foo' as being one switch whose
407 name starts with `o'. %{o*} would substitute this text,
408 including the space; thus, two arguments would be generated.
409 %{S*&T*} likewise, but preserve order of S and T options (the order
410 of S and T in the spec is not significant). Can be any number
411 of ampersand-separated variables; for each the wild card is
412 optional. Useful for CPP as %{D*&U*&A*}.
414 %{S:X} substitutes X, if the -S switch was given to GCC.
415 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
416 %{S*:X} substitutes X if one or more switches whose names start
417 with -S was given to GCC. Normally X is substituted only
418 once, no matter how many such switches appeared. However,
419 if %* appears somewhere in X, then X will be substituted
420 once for each matching switch, with the %* replaced by the
421 part of that switch that matched the '*'.
422 %{.S:X} substitutes X, if processing a file with suffix S.
423 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
424 %{,S:X} substitutes X, if processing a file which will use spec S.
425 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
427 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
428 combined with '!', '.', ',', and '*' as above binding stronger
430 If %* appears in X, all of the alternatives must be starred, and
431 only the first matching alternative is substituted.
432 %{S:X; if S was given to GCC, substitutes X;
433 T:Y; else if T was given to GCC, substitutes Y;
434 :D} else substitutes D. There can be as many clauses as you need.
435 This may be combined with '.', '!', ',', '|', and '*' as above.
437 %(Spec) processes a specification defined in a specs file as *Spec:
438 %[Spec] as above, but put __ around -D arguments
440 The conditional text X in a %{S:X} or similar construct may contain
441 other nested % constructs or spaces, or even newlines. They are
442 processed as usual, as described above. Trailing white space in X is
443 ignored. White space may also appear anywhere on the left side of the
444 colon in these constructs, except between . or * and the corresponding
447 The -O, -f, -m, and -W switches are handled specifically in these
448 constructs. If another value of -O or the negated form of a -f, -m, or
449 -W switch is found later in the command line, the earlier switch
450 value is ignored, except with {S*} where S is just one letter; this
451 passes all matching options.
453 The character | at the beginning of the predicate text is used to indicate
454 that a command should be piped to the following command, but only if -pipe
457 Note that it is built into GCC which switches take arguments and which
458 do not. You might think it would be useful to generalize this to
459 allow each compiler's spec to say which switches take arguments. But
460 this cannot be done in a consistent fashion. GCC cannot even decide
461 which input files have been specified without knowing which switches
462 take arguments, and it must know which input files to compile in order
463 to tell which compilers to run.
465 GCC also knows implicitly that arguments starting in `-l' are to be
466 treated as compiler output files, and passed to the linker in their
467 proper position among the other output files. */
469 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
471 /* config.h can define ASM_SPEC to provide extra args to the assembler
472 or extra switch-translations. */
477 /* config.h can define ASM_FINAL_SPEC to run a post processor after
478 the assembler has run. */
479 #ifndef ASM_FINAL_SPEC
480 #define ASM_FINAL_SPEC ""
483 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
484 or extra switch-translations. */
489 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
490 or extra switch-translations. */
495 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
496 or extra switch-translations. */
498 #define CC1PLUS_SPEC ""
501 /* config.h can define LINK_SPEC to provide extra args to the linker
502 or extra switch-translations. */
507 /* config.h can define LIB_SPEC to override the default libraries. */
509 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
514 /* XXX: valid only for GNU ld */
515 /* XXX: should exactly match hooks provided by libmudflap.a */
516 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
517 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
518 --wrap=mmap --wrap=munmap --wrap=alloca\
519 } %{fmudflapth: --wrap=pthread_create\
520 }} %{fmudflap|fmudflapth: --wrap=main}"
523 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
526 /* When using -fsplit-stack we need to wrap pthread_create, in order
527 to initialize the stack guard. We always use wrapping, rather than
528 shared library ordering, and we keep the wrapper function in
529 libgcc. This is not yet a real spec, though it could become one;
530 it is currently just stuffed into LINK_SPEC. FIXME: This wrapping
531 only works with GNU ld and gold. FIXME: This is incompatible with
532 -fmudflap when linking statically, which wants to do its own
534 #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
536 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
539 #if defined(REAL_LIBGCC_SPEC)
540 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
541 #elif defined(LINK_LIBGCC_SPECIAL_1)
542 /* Have gcc do the search for libgcc.a. */
543 #define LIBGCC_SPEC "libgcc.a%s"
545 #define LIBGCC_SPEC "-lgcc"
549 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
550 #ifndef STARTFILE_SPEC
551 #define STARTFILE_SPEC \
552 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
555 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
557 #define ENDFILE_SPEC ""
561 #define LINKER_NAME "collect2"
564 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
565 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
570 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
572 #ifndef ASM_DEBUG_SPEC
573 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
574 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
575 # define ASM_DEBUG_SPEC \
576 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
577 ? "%{!g0:%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}}" ASM_MAP \
578 : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
580 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
581 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP
583 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
584 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP
588 #ifndef ASM_DEBUG_SPEC
589 # define ASM_DEBUG_SPEC ""
592 /* Here is the spec for running the linker, after compiling all files. */
594 /* This is overridable by the target in case they need to specify the
595 -lgcc and -lc order specially, yet not require them to override all
596 of LINK_COMMAND_SPEC. */
597 #ifndef LINK_GCC_C_SEQUENCE_SPEC
598 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
601 #ifndef LINK_SSP_SPEC
602 #ifdef TARGET_LIBC_PROVIDES_SSP
603 #define LINK_SSP_SPEC "%{fstack-protector:}"
605 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
609 #ifndef LINK_PIE_SPEC
611 #define LINK_PIE_SPEC "%{pie:-pie} "
613 #define LINK_PIE_SPEC "%{pie:} "
617 #ifndef LINK_BUILDID_SPEC
618 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
619 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
624 /* -u* was put back because both BSD and SysV seem to support it. */
625 /* %{static:} simply prevents an error message if the target machine
626 doesn't handle -static. */
627 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
628 scripts which exist in user specified directories, or in standard
630 /* We pass any -flto flags on to the linker, which is expected
631 to understand them. In practice, this means it had better be collect2. */
632 #ifndef LINK_COMMAND_SPEC
633 #define LINK_COMMAND_SPEC "\
634 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
636 %{fuse-linker-plugin: \
637 -plugin %(linker_plugin_file) \
638 -plugin-opt=%(lto_wrapper) \
639 -plugin-opt=-fresolution=%u.res \
640 %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \
642 %{flto*:%<fcompare-debug*} \
643 %{flto*} %l " LINK_PIE_SPEC \
644 "%X %{o*} %{e*} %{N} %{n} %{r}\
645 %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}}\
646 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
647 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}\
648 %(mflib) " STACK_SPLIT_SPEC "\
649 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\
650 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
651 %{!nostdlib:%{!nostartfiles:%E}} %{T*} }}}}}}"
654 #ifndef LINK_LIBGCC_SPEC
655 /* Generate -L options for startfile prefix list. */
656 # define LINK_LIBGCC_SPEC "%D"
659 #ifndef STARTFILE_PREFIX_SPEC
660 # define STARTFILE_PREFIX_SPEC ""
664 # define SYSROOT_SPEC "--sysroot=%R"
667 #ifndef SYSROOT_SUFFIX_SPEC
668 # define SYSROOT_SUFFIX_SPEC ""
671 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
672 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
675 static const char *asm_debug
;
676 static const char *cpp_spec
= CPP_SPEC
;
677 static const char *cc1_spec
= CC1_SPEC
;
678 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
679 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
680 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
681 static const char *asm_spec
= ASM_SPEC
;
682 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
683 static const char *link_spec
= LINK_SPEC
;
684 static const char *lib_spec
= LIB_SPEC
;
685 static const char *mfwrap_spec
= MFWRAP_SPEC
;
686 static const char *mflib_spec
= MFLIB_SPEC
;
687 static const char *link_gomp_spec
= "";
688 static const char *libgcc_spec
= LIBGCC_SPEC
;
689 static const char *endfile_spec
= ENDFILE_SPEC
;
690 static const char *startfile_spec
= STARTFILE_SPEC
;
691 static const char *linker_name_spec
= LINKER_NAME
;
692 static const char *linker_plugin_file_spec
= "";
693 static const char *lto_wrapper_spec
= "";
694 static const char *lto_gcc_spec
= "";
695 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
696 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
697 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
698 static const char *sysroot_spec
= SYSROOT_SPEC
;
699 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
700 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
702 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
703 There should be no need to override these in target dependent files,
704 but we need to copy them to the specs file so that newer versions
705 of the GCC driver can correctly drive older tool chains with the
706 appropriate -B options. */
708 /* When cpplib handles traditional preprocessing, get rid of this, and
709 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
710 that we default the front end language better. */
711 static const char *trad_capable_cpp
=
712 "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}";
714 /* We don't wrap .d files in %W{} since a missing .d file, and
715 therefore no dependency entry, confuses make into thinking a .o
716 file that happens to exist is up-to-date. */
717 static const char *cpp_unique_options
=
718 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
719 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
720 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
721 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
722 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
723 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
724 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
725 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
726 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
727 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
730 /* This contains cpp options which are common with cc1_options and are passed
731 only when preprocessing only to avoid duplication. We pass the cc1 spec
732 options to the preprocessor so that it the cc1 spec may manipulate
733 options used to set target flags. Those special target flags settings may
734 in turn cause preprocessor symbols to be defined specially. */
735 static const char *cpp_options
=
736 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
737 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
738 %{undef} %{save-temps*:-fpch-preprocess}";
740 /* This contains cpp options which are not passed when the preprocessor
741 output will be used by another program. */
742 static const char *cpp_debug_options
= "%{d*}";
744 /* NB: This is shared amongst all front-ends, except for Ada. */
745 static const char *cc1_options
=
746 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
747 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
748 %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\
749 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
750 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
751 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
752 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
753 %{Qn:-fno-ident} %{Qy:} %{-help:--help}\
754 %{-target-help:--target-help}\
755 %{-version:--version}\
756 %{-help=*:--help=%*}\
757 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
758 %{fsyntax-only:-o %j} %{-param*}\
759 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
760 %{coverage:-fprofile-arcs -ftest-coverage}";
762 static const char *asm_options
=
763 "%{--target-help:%:print-asm-header()} "
765 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
766 to the assembler equivalents. */
767 "%{v} %{w:-W} %{I*} "
769 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
771 static const char *invoke_as
=
772 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
774 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
775 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
779 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
780 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
784 /* Some compilers have limits on line lengths, and the multilib_select
785 and/or multilib_matches strings can be very long, so we build them at
787 static struct obstack multilib_obstack
;
788 static const char *multilib_select
;
789 static const char *multilib_matches
;
790 static const char *multilib_defaults
;
791 static const char *multilib_exclusions
;
793 /* Check whether a particular argument is a default argument. */
795 #ifndef MULTILIB_DEFAULTS
796 #define MULTILIB_DEFAULTS { "" }
799 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
801 #ifndef DRIVER_SELF_SPECS
802 #define DRIVER_SELF_SPECS ""
805 /* Adding -fopenmp should imply pthreads. This is particularly important
806 for targets that use different start files and suchlike. */
807 #ifndef GOMP_SELF_SPECS
808 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
811 static const char *const driver_self_specs
[] = {
812 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
813 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
816 #ifndef OPTION_DEFAULT_SPECS
817 #define OPTION_DEFAULT_SPECS { "", "" }
826 static const struct default_spec
827 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
831 struct user_specs
*next
;
832 const char *filename
;
835 static struct user_specs
*user_specs_head
, *user_specs_tail
;
838 /* Record the mapping from file suffixes for compilation specs. */
842 const char *suffix
; /* Use this compiler for input files
843 whose names end in this suffix. */
845 const char *spec
; /* To use this compiler, run this spec. */
847 const char *cpp_spec
; /* If non-NULL, substitute this spec
848 for `%C', rather than the usual
850 const int combinable
; /* If nonzero, compiler can deal with
851 multiple source files at once (IMA). */
852 const int needs_preprocessing
; /* If nonzero, source files need to
853 be run through a preprocessor. */
856 /* Pointer to a vector of `struct compiler' that gives the spec for
857 compiling a file, based on its suffix.
858 A file that does not end in any of these suffixes will be passed
859 unchanged to the loader and nothing else will be done to it.
861 An entry containing two 0s is used to terminate the vector.
863 If multiple entries match a file, the last matching one is used. */
865 static struct compiler
*compilers
;
867 /* Number of entries in `compilers', not counting the null terminator. */
869 static int n_compilers
;
871 /* The default list of file name suffixes and their compilation specs. */
873 static const struct compiler default_compilers
[] =
875 /* Add lists of suffixes of known languages here. If those languages
876 were not present when we built the driver, we will hit these copies
877 and be given a more meaningful error than "file not used since
878 linking is not done". */
879 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
880 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
881 {".mii", "#Objective-C++", 0, 0, 0},
882 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
883 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
884 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
885 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
886 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
887 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
888 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
889 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
890 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
891 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
892 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
893 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
894 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
895 {".r", "#Ratfor", 0, 0, 0},
896 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
897 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
898 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
899 {".go", "#Go", 0, 1, 0},
900 /* Next come the entries for C. */
901 {".c", "@c", 0, 0, 1},
903 /* cc1 has an integrated ISO C preprocessor. We should invoke the
904 external preprocessor if -save-temps is given. */
905 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
908 %eGNU C no longer supports -traditional without -E}\
909 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
910 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
911 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
913 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
914 cc1 %(cpp_unique_options) %(cc1_options)}}}\
915 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
917 "%{!E:%e-E or -x required when input is from standard input}\
918 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
919 {".h", "@c-header", 0, 0, 0},
921 /* cc1 has an integrated ISO C preprocessor. We should invoke the
922 external preprocessor if -save-temps is given. */
923 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
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 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
930 %W{o*:--output-pch=%*}}%V}\
931 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
932 cc1 %(cpp_unique_options) %(cc1_options)\
933 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
934 %W{o*:--output-pch=%*}}%V}}}}}}", 0, 0, 0},
935 {".i", "@cpp-output", 0, 0, 0},
937 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
938 {".s", "@assembler", 0, 1, 0},
940 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
941 {".sx", "@assembler-with-cpp", 0, 1, 0},
942 {".S", "@assembler-with-cpp", 0, 1, 0},
943 {"@assembler-with-cpp",
944 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
945 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
946 %{E|M|MM:%(cpp_debug_options)}\
947 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
948 as %(asm_debug) %(asm_options) %|.s %A }}}}"
950 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
951 %{E|M|MM:%(cpp_debug_options)}\
952 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
953 as %(asm_debug) %(asm_options) %m.s %A }}}}"
958 /* Mark end of table. */
962 /* Number of elements in default_compilers, not counting the terminator. */
964 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
966 typedef char *char_p
; /* For DEF_VEC_P. */
968 DEF_VEC_ALLOC_P(char_p
,heap
);
970 /* A vector of options to give to the linker.
971 These options are accumulated by %x,
972 and substituted into the linker command with %X. */
973 static VEC(char_p
,heap
) *linker_options
;
975 /* A vector of options to give to the assembler.
976 These options are accumulated by -Wa,
977 and substituted into the assembler command with %Y. */
978 static VEC(char_p
,heap
) *assembler_options
;
980 /* A vector of options to give to the preprocessor.
981 These options are accumulated by -Wp,
982 and substituted into the preprocessor command with %Z. */
983 static VEC(char_p
,heap
) *preprocessor_options
;
986 skip_whitespace (char *p
)
990 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
991 be considered whitespace. */
992 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
994 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1008 /* Structures to keep track of prefixes to try when looking for files. */
1012 const char *prefix
; /* String to prepend to the path. */
1013 struct prefix_list
*next
; /* Next in linked list. */
1014 int require_machine_suffix
; /* Don't use without machine_suffix. */
1015 /* 2 means try both machine_suffix and just_machine_suffix. */
1016 int priority
; /* Sort key - priority within list. */
1017 int os_multilib
; /* 1 if OS multilib scheme should be used,
1018 0 for GCC multilib scheme. */
1023 struct prefix_list
*plist
; /* List of prefixes to try */
1024 int max_len
; /* Max length of a prefix in PLIST */
1025 const char *name
; /* Name of this list (used in config stuff) */
1028 /* List of prefixes to try when looking for executables. */
1030 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1032 /* List of prefixes to try when looking for startup (crt0) files. */
1034 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1036 /* List of prefixes to try when looking for include files. */
1038 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1040 /* Suffix to attach to directories searched for commands.
1041 This looks like `MACHINE/VERSION/'. */
1043 static const char *machine_suffix
= 0;
1045 /* Suffix to attach to directories searched for commands.
1046 This is just `MACHINE/'. */
1048 static const char *just_machine_suffix
= 0;
1050 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1052 static const char *gcc_exec_prefix
;
1054 /* Adjusted value of standard_libexec_prefix. */
1056 static const char *gcc_libexec_prefix
;
1058 /* Default prefixes to attach to command names. */
1060 #ifndef STANDARD_STARTFILE_PREFIX_1
1061 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1063 #ifndef STANDARD_STARTFILE_PREFIX_2
1064 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1067 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1068 #undef MD_EXEC_PREFIX
1069 #undef MD_STARTFILE_PREFIX
1070 #undef MD_STARTFILE_PREFIX_1
1073 /* If no prefixes defined, use the null string, which will disable them. */
1074 #ifndef MD_EXEC_PREFIX
1075 #define MD_EXEC_PREFIX ""
1077 #ifndef MD_STARTFILE_PREFIX
1078 #define MD_STARTFILE_PREFIX ""
1080 #ifndef MD_STARTFILE_PREFIX_1
1081 #define MD_STARTFILE_PREFIX_1 ""
1084 /* These directories are locations set at configure-time based on the
1085 --prefix option provided to configure. Their initializers are
1086 defined in Makefile.in. These paths are not *directly* used when
1087 gcc_exec_prefix is set because, in that case, we know where the
1088 compiler has been installed, and use paths relative to that
1089 location instead. */
1090 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1091 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1092 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1093 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1095 /* For native compilers, these are well-known paths containing
1096 components that may be provided by the system. For cross
1097 compilers, these paths are not used. */
1098 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1099 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1100 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1101 static const char *const standard_startfile_prefix_1
1102 = STANDARD_STARTFILE_PREFIX_1
;
1103 static const char *const standard_startfile_prefix_2
1104 = STANDARD_STARTFILE_PREFIX_2
;
1106 /* A relative path to be used in finding the location of tools
1107 relative to the driver. */
1108 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1110 /* Subdirectory to use for locating libraries. Set by
1111 set_multilib_dir based on the compilation options. */
1113 static const char *multilib_dir
;
1115 /* Subdirectory to use for locating libraries in OS conventions. Set by
1116 set_multilib_dir based on the compilation options. */
1118 static const char *multilib_os_dir
;
1120 /* Structure to keep track of the specs that have been defined so far.
1121 These are accessed using %(specname) or %[specname] in a compiler
1126 /* The following 2 fields must be first */
1127 /* to allow EXTRA_SPECS to be initialized */
1128 const char *name
; /* name of the spec. */
1129 const char *ptr
; /* available ptr if no static pointer */
1131 /* The following fields are not initialized */
1132 /* by EXTRA_SPECS */
1133 const char **ptr_spec
; /* pointer to the spec itself. */
1134 struct spec_list
*next
; /* Next spec in linked list. */
1135 int name_len
; /* length of the name */
1136 int alloc_p
; /* whether string was allocated */
1139 #define INIT_STATIC_SPEC(NAME,PTR) \
1140 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1142 /* List of statically defined specs. */
1143 static struct spec_list static_specs
[] =
1145 INIT_STATIC_SPEC ("asm", &asm_spec
),
1146 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1147 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1148 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1149 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1150 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1151 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1152 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1153 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1154 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1155 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1156 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1157 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1158 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1159 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1160 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1161 INIT_STATIC_SPEC ("link", &link_spec
),
1162 INIT_STATIC_SPEC ("lib", &lib_spec
),
1163 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1164 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1165 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1166 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1167 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1168 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1169 INIT_STATIC_SPEC ("version", &compiler_version
),
1170 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1171 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1172 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1173 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1174 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1175 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1176 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1177 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1178 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1179 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1180 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1181 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1182 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1183 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1184 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1185 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1186 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1187 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1190 #ifdef EXTRA_SPECS /* additional specs needed */
1191 /* Structure to keep track of just the first two args of a spec_list.
1192 That is all that the EXTRA_SPECS macro gives us. */
1195 const char *const name
;
1196 const char *const ptr
;
1199 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1200 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1203 /* List of dynamically allocates specs that have been defined so far. */
1205 static struct spec_list
*specs
= (struct spec_list
*) 0;
1207 /* List of static spec functions. */
1209 static const struct spec_function static_spec_functions
[] =
1211 { "getenv", getenv_spec_function
},
1212 { "if-exists", if_exists_spec_function
},
1213 { "if-exists-else", if_exists_else_spec_function
},
1214 { "replace-outfile", replace_outfile_spec_function
},
1215 { "remove-outfile", remove_outfile_spec_function
},
1216 { "version-compare", version_compare_spec_function
},
1217 { "include", include_spec_function
},
1218 { "find-file", find_file_spec_function
},
1219 { "find-plugindir", find_plugindir_spec_function
},
1220 { "print-asm-header", print_asm_header_spec_function
},
1221 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1222 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1223 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1224 { "pass-through-libs", pass_through_libs_spec_func
},
1225 #ifdef EXTRA_SPEC_FUNCTIONS
1226 EXTRA_SPEC_FUNCTIONS
1231 static int processing_spec_function
;
1233 /* Add appropriate libgcc specs to OBSTACK, taking into account
1234 various permutations of -shared-libgcc, -shared, and such. */
1236 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1238 #ifndef USE_LD_AS_NEEDED
1239 #define USE_LD_AS_NEEDED 0
1243 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1244 const char *static_name
, const char *eh_name
)
1248 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1249 "%{!static:%{!static-libgcc:"
1250 #if USE_LD_AS_NEEDED
1251 "%{!shared-libgcc:",
1252 static_name
, " --as-needed ", shared_name
, " --no-as-needed"
1255 shared_name
, "%{!shared: ", static_name
, "}"
1259 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1260 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1264 "%{shared-libgcc:", shared_name
, "}"
1265 "%{!shared-libgcc:", static_name
, "}"
1268 "%{shared:", shared_name
, "}"
1273 obstack_grow (obstack
, buf
, strlen (buf
));
1276 #endif /* ENABLE_SHARED_LIBGCC */
1278 /* Initialize the specs lookup routines. */
1283 struct spec_list
*next
= (struct spec_list
*) 0;
1284 struct spec_list
*sl
= (struct spec_list
*) 0;
1288 return; /* Already initialized. */
1291 fnotice (stderr
, "Using built-in specs.\n");
1294 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1296 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1298 sl
= &extra_specs
[i
];
1299 sl
->name
= extra_specs_1
[i
].name
;
1300 sl
->ptr
= extra_specs_1
[i
].ptr
;
1302 sl
->name_len
= strlen (sl
->name
);
1303 sl
->ptr_spec
= &sl
->ptr
;
1308 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1310 sl
= &static_specs
[i
];
1315 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1316 /* ??? If neither -shared-libgcc nor --static-libgcc was
1317 seen, then we should be making an educated guess. Some proposed
1318 heuristics for ELF include:
1320 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1321 program will be doing dynamic loading, which will likely
1322 need the shared libgcc.
1324 (2) If "-ldl", then it's also a fair bet that we're doing
1327 (3) For each ET_DYN we're linking against (either through -lfoo
1328 or /some/path/foo.so), check to see whether it or one of
1329 its dependencies depends on a shared libgcc.
1333 If the runtime is fixed to look for program headers instead
1334 of calling __register_frame_info at all, for each object,
1335 use the shared libgcc if any EH symbol referenced.
1337 If crtstuff is fixed to not invoke __register_frame_info
1338 automatically, for each object, use the shared libgcc if
1339 any non-empty unwind section found.
1341 Doing any of this probably requires invoking an external program to
1342 do the actual object file scanning. */
1344 const char *p
= libgcc_spec
;
1347 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1348 when given the proper command line arguments. */
1351 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1353 init_gcc_specs (&obstack
,
1355 #ifdef USE_LIBUNWIND_EXCEPTIONS
1361 #ifdef USE_LIBUNWIND_EXCEPTIONS
1362 # ifdef HAVE_LD_STATIC_DYNAMIC
1363 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1373 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1375 /* Ug. We don't know shared library extensions. Hope that
1376 systems that use this form don't do shared libraries. */
1377 init_gcc_specs (&obstack
,
1381 #ifdef USE_LIBUNWIND_EXCEPTIONS
1390 obstack_1grow (&obstack
, *p
);
1391 in_sep
= (*p
== ' ');
1396 obstack_1grow (&obstack
, '\0');
1397 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1400 #ifdef USE_AS_TRADITIONAL_FORMAT
1401 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1403 static const char tf
[] = "--traditional-format ";
1404 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1405 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1406 asm_spec
= XOBFINISH (&obstack
, const char *);
1410 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC
1411 # ifdef LINK_BUILDID_SPEC
1412 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1413 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof(LINK_BUILDID_SPEC
) - 1);
1415 # ifdef LINK_EH_SPEC
1416 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1417 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1419 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1420 link_spec
= XOBFINISH (&obstack
, const char *);
1426 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1427 removed; If the spec starts with a + then SPEC is added to the end of the
1431 set_spec (const char *name
, const char *spec
)
1433 struct spec_list
*sl
;
1434 const char *old_spec
;
1435 int name_len
= strlen (name
);
1438 /* If this is the first call, initialize the statically allocated specs. */
1441 struct spec_list
*next
= (struct spec_list
*) 0;
1442 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1444 sl
= &static_specs
[i
];
1451 /* See if the spec already exists. */
1452 for (sl
= specs
; sl
; sl
= sl
->next
)
1453 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1458 /* Not found - make it. */
1459 sl
= XNEW (struct spec_list
);
1460 sl
->name
= xstrdup (name
);
1461 sl
->name_len
= name_len
;
1462 sl
->ptr_spec
= &sl
->ptr
;
1464 *(sl
->ptr_spec
) = "";
1469 old_spec
= *(sl
->ptr_spec
);
1470 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1471 ? concat (old_spec
, spec
+ 1, NULL
)
1476 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1479 /* Free the old spec. */
1480 if (old_spec
&& sl
->alloc_p
)
1481 free (CONST_CAST(char *, old_spec
));
1486 /* Accumulate a command (program name and args), and run it. */
1488 typedef const char *const_char_p
; /* For DEF_VEC_P. */
1489 DEF_VEC_P(const_char_p
);
1490 DEF_VEC_ALLOC_P(const_char_p
,heap
);
1492 /* Vector of pointers to arguments in the current line of specifications. */
1494 static VEC(const_char_p
,heap
) *argbuf
;
1496 /* Position in the argbuf vector containing the name of the output file
1497 (the value associated with the "-o" flag). */
1499 static int have_o_argbuf_index
= 0;
1501 /* Were the options -c, -S or -E passed. */
1502 static int have_c
= 0;
1504 /* Was the option -o passed. */
1505 static int have_o
= 0;
1507 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1508 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1511 static struct temp_name
{
1512 const char *suffix
; /* suffix associated with the code. */
1513 int length
; /* strlen (suffix). */
1514 int unique
; /* Indicates whether %g or %u/%U was used. */
1515 const char *filename
; /* associated filename. */
1516 int filename_length
; /* strlen (filename). */
1517 struct temp_name
*next
;
1520 /* Number of commands executed so far. */
1522 static int execution_count
;
1524 /* Number of commands that exited with a signal. */
1526 static int signal_count
;
1528 /* Allocate the argument vector. */
1533 argbuf
= VEC_alloc (const_char_p
, heap
, 10);
1536 /* Clear out the vector of arguments (after a command is executed). */
1541 VEC_truncate (const_char_p
, argbuf
, 0);
1544 /* Add one argument to the vector at the end.
1545 This is done when a space is seen or at the end of the line.
1546 If DELETE_ALWAYS is nonzero, the arg is a filename
1547 and the file should be deleted eventually.
1548 If DELETE_FAILURE is nonzero, the arg is a filename
1549 and the file should be deleted if this compilation fails. */
1552 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1554 VEC_safe_push (const_char_p
, heap
, argbuf
, arg
);
1556 if (strcmp (arg
, "-o") == 0)
1557 have_o_argbuf_index
= VEC_length (const_char_p
, argbuf
);
1558 if (delete_always
|| delete_failure
)
1561 /* If the temporary file we should delete is specified as
1562 part of a joined argument extract the filename. */
1564 && (p
= strrchr (arg
, '=')))
1566 record_temp_file (arg
, delete_always
, delete_failure
);
1570 /* Load specs from a file name named FILENAME, replacing occurrences of
1571 various different types of line-endings, \r\n, \n\r and just \r, with
1575 load_specs (const char *filename
)
1579 struct stat statbuf
;
1586 fnotice (stderr
, "Reading specs from %s\n", filename
);
1588 /* Open and stat the file. */
1589 desc
= open (filename
, O_RDONLY
, 0);
1591 pfatal_with_name (filename
);
1592 if (stat (filename
, &statbuf
) < 0)
1593 pfatal_with_name (filename
);
1595 /* Read contents of file into BUFFER. */
1596 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
1597 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1599 pfatal_with_name (filename
);
1600 buffer
[readlen
] = 0;
1603 specs
= XNEWVEC (char, readlen
+ 1);
1605 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1611 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1613 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1627 /* Read compilation specs from a file named FILENAME,
1628 replacing the default ones.
1630 A suffix which starts with `*' is a definition for
1631 one of the machine-specific sub-specs. The "suffix" should be
1632 *asm, *cc1, *cpp, *link, *startfile, etc.
1633 The corresponding spec is stored in asm_spec, etc.,
1634 rather than in the `compilers' vector.
1636 Anything invalid in the file is a fatal error. */
1639 read_specs (const char *filename
, int main_p
)
1644 buffer
= load_specs (filename
);
1646 /* Scan BUFFER for specs, putting them in the vector. */
1652 char *in
, *out
, *p1
, *p2
, *p3
;
1654 /* Advance P in BUFFER to the next nonblank nocomment line. */
1655 p
= skip_whitespace (p
);
1659 /* Is this a special command that starts with '%'? */
1660 /* Don't allow this for the main specs file, since it would
1661 encourage people to overwrite it. */
1662 if (*p
== '%' && !main_p
)
1665 while (*p
&& *p
!= '\n')
1671 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1672 && (p1
[sizeof "%include" - 1] == ' '
1673 || p1
[sizeof "%include" - 1] == '\t'))
1677 p1
+= sizeof ("%include");
1678 while (*p1
== ' ' || *p1
== '\t')
1681 if (*p1
++ != '<' || p
[-2] != '>')
1682 fatal_error ("specs %%include syntax malformed after "
1684 (long) (p1
- buffer
+ 1));
1687 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1688 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1691 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1692 && (p1
[sizeof "%include_noerr" - 1] == ' '
1693 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1697 p1
+= sizeof "%include_noerr";
1698 while (*p1
== ' ' || *p1
== '\t')
1701 if (*p1
++ != '<' || p
[-2] != '>')
1702 fatal_error ("specs %%include syntax malformed after "
1704 (long) (p1
- buffer
+ 1));
1707 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1709 read_specs (new_filename
, FALSE
);
1710 else if (verbose_flag
)
1711 fnotice (stderr
, "could not find specs file %s\n", p1
);
1714 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1715 && (p1
[sizeof "%rename" - 1] == ' '
1716 || p1
[sizeof "%rename" - 1] == '\t'))
1719 struct spec_list
*sl
;
1720 struct spec_list
*newsl
;
1722 /* Get original name. */
1723 p1
+= sizeof "%rename";
1724 while (*p1
== ' ' || *p1
== '\t')
1727 if (! ISALPHA ((unsigned char) *p1
))
1728 fatal_error ("specs %%rename syntax malformed after "
1730 (long) (p1
- buffer
));
1733 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1736 if (*p2
!= ' ' && *p2
!= '\t')
1737 fatal_error ("specs %%rename syntax malformed after "
1739 (long) (p2
- buffer
));
1743 while (*p2
== ' ' || *p2
== '\t')
1746 if (! ISALPHA ((unsigned char) *p2
))
1747 fatal_error ("specs %%rename syntax malformed after "
1749 (long) (p2
- buffer
));
1751 /* Get new spec name. */
1753 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
1757 fatal_error ("specs %%rename syntax malformed after "
1759 (long) (p3
- buffer
));
1762 for (sl
= specs
; sl
; sl
= sl
->next
)
1763 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1767 fatal_error ("specs %s spec was not found to be renamed", p1
);
1769 if (strcmp (p1
, p2
) == 0)
1772 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
1773 if (strcmp (newsl
->name
, p2
) == 0)
1774 fatal_error ("%s: attempt to rename spec %qs to "
1775 "already defined spec %qs",
1780 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
1782 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
1786 set_spec (p2
, *(sl
->ptr_spec
));
1788 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
1790 *(sl
->ptr_spec
) = "";
1795 fatal_error ("specs unknown %% command after %ld characters",
1796 (long) (p1
- buffer
));
1799 /* Find the colon that should end the suffix. */
1801 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1804 /* The colon shouldn't be missing. */
1806 fatal_error ("specs file malformed after %ld characters",
1807 (long) (p1
- buffer
));
1809 /* Skip back over trailing whitespace. */
1811 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1814 /* Copy the suffix to a string. */
1815 suffix
= save_string (p
, p2
- p
);
1816 /* Find the next line. */
1817 p
= skip_whitespace (p1
+ 1);
1819 fatal_error ("specs file malformed after %ld characters",
1820 (long) (p
- buffer
));
1823 /* Find next blank line or end of string. */
1824 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1827 /* Specs end at the blank line and do not include the newline. */
1828 spec
= save_string (p
, p1
- p
);
1831 /* Delete backslash-newline sequences from the spec. */
1836 if (in
[0] == '\\' && in
[1] == '\n')
1838 else if (in
[0] == '#')
1839 while (*in
&& *in
!= '\n')
1847 if (suffix
[0] == '*')
1849 if (! strcmp (suffix
, "*link_command"))
1850 link_command_spec
= spec
;
1852 set_spec (suffix
+ 1, spec
);
1856 /* Add this pair to the vector. */
1858 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
1860 compilers
[n_compilers
].suffix
= suffix
;
1861 compilers
[n_compilers
].spec
= spec
;
1863 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
1867 link_command_spec
= spec
;
1870 if (link_command_spec
== 0)
1871 fatal_error ("spec file has no spec for linking");
1874 /* Record the names of temporary files we tell compilers to write,
1875 and delete them at the end of the run. */
1877 /* This is the common prefix we use to make temp file names.
1878 It is chosen once for each run of this program.
1879 It is substituted into a spec by %g or %j.
1880 Thus, all temp file names contain this prefix.
1881 In practice, all temp file names start with this prefix.
1883 This prefix comes from the envvar TMPDIR if it is defined;
1884 otherwise, from the P_tmpdir macro if that is defined;
1885 otherwise, in /usr/tmp or /tmp;
1886 or finally the current directory if all else fails. */
1888 static const char *temp_filename
;
1890 /* Length of the prefix. */
1892 static int temp_filename_length
;
1894 /* Define the list of temporary files to delete. */
1899 struct temp_file
*next
;
1902 /* Queue of files to delete on success or failure of compilation. */
1903 static struct temp_file
*always_delete_queue
;
1904 /* Queue of files to delete on failure of compilation. */
1905 static struct temp_file
*failure_delete_queue
;
1907 /* Record FILENAME as a file to be deleted automatically.
1908 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1909 otherwise delete it in any case.
1910 FAIL_DELETE nonzero means delete it if a compilation step fails;
1911 otherwise delete it in any case. */
1914 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
1916 char *const name
= xstrdup (filename
);
1920 struct temp_file
*temp
;
1921 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1922 if (! strcmp (name
, temp
->name
))
1925 temp
= XNEW (struct temp_file
);
1926 temp
->next
= always_delete_queue
;
1928 always_delete_queue
= temp
;
1935 struct temp_file
*temp
;
1936 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1937 if (! strcmp (name
, temp
->name
))
1940 temp
= XNEW (struct temp_file
);
1941 temp
->next
= failure_delete_queue
;
1943 failure_delete_queue
= temp
;
1949 /* Delete all the temporary files whose names we previously recorded. */
1951 #ifndef DELETE_IF_ORDINARY
1952 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
1955 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
1956 if (unlink (NAME) < 0) \
1958 perror_with_name (NAME); \
1963 delete_if_ordinary (const char *name
)
1969 printf ("Delete %s? (y or n) ", name
);
1973 while ((c
= getchar ()) != '\n' && c
!= EOF
)
1976 if (i
== 'y' || i
== 'Y')
1978 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
1982 delete_temp_files (void)
1984 struct temp_file
*temp
;
1986 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1987 delete_if_ordinary (temp
->name
);
1988 always_delete_queue
= 0;
1991 /* Delete all the files to be deleted on error. */
1994 delete_failure_queue (void)
1996 struct temp_file
*temp
;
1998 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1999 delete_if_ordinary (temp
->name
);
2003 clear_failure_queue (void)
2005 failure_delete_queue
= 0;
2008 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2010 If DO_MULTI is true iterate over the paths twice, first with multilib
2011 suffix then without, otherwise iterate over the paths once without
2012 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2013 to avoid visiting the same path twice, but we could do better. For
2014 instance, /usr/lib/../lib is considered different from /usr/lib.
2015 At least EXTRA_SPACE chars past the end of the path passed to
2016 CALLBACK are available for use by the callback.
2017 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2019 Returns the value returned by CALLBACK. */
2022 for_each_path (const struct path_prefix
*paths
,
2025 void *(*callback
) (char *, void *),
2026 void *callback_info
)
2028 struct prefix_list
*pl
;
2029 const char *multi_dir
= NULL
;
2030 const char *multi_os_dir
= NULL
;
2031 const char *multi_suffix
;
2032 const char *just_multi_suffix
;
2035 bool skip_multi_dir
= false;
2036 bool skip_multi_os_dir
= false;
2038 multi_suffix
= machine_suffix
;
2039 just_multi_suffix
= just_machine_suffix
;
2040 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2042 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2043 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2044 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2046 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2047 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2051 size_t multi_dir_len
= 0;
2052 size_t multi_os_dir_len
= 0;
2054 size_t just_suffix_len
;
2058 multi_dir_len
= strlen (multi_dir
);
2060 multi_os_dir_len
= strlen (multi_os_dir
);
2061 suffix_len
= strlen (multi_suffix
);
2062 just_suffix_len
= strlen (just_multi_suffix
);
2066 len
= paths
->max_len
+ extra_space
+ 1;
2067 if (suffix_len
> multi_os_dir_len
)
2070 len
+= multi_os_dir_len
;
2071 path
= XNEWVEC (char, len
);
2074 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2076 len
= strlen (pl
->prefix
);
2077 memcpy (path
, pl
->prefix
, len
);
2079 /* Look first in MACHINE/VERSION subdirectory. */
2080 if (!skip_multi_dir
)
2082 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2083 ret
= callback (path
, callback_info
);
2088 /* Some paths are tried with just the machine (ie. target)
2089 subdir. This is used for finding as, ld, etc. */
2091 && pl
->require_machine_suffix
== 2)
2093 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2094 ret
= callback (path
, callback_info
);
2099 /* Now try the base path. */
2100 if (!pl
->require_machine_suffix
2101 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2103 const char *this_multi
;
2104 size_t this_multi_len
;
2106 if (pl
->os_multilib
)
2108 this_multi
= multi_os_dir
;
2109 this_multi_len
= multi_os_dir_len
;
2113 this_multi
= multi_dir
;
2114 this_multi_len
= multi_dir_len
;
2118 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2122 ret
= callback (path
, callback_info
);
2130 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2133 /* Run through the paths again, this time without multilibs.
2134 Don't repeat any we have already seen. */
2137 free (CONST_CAST (char *, multi_dir
));
2139 free (CONST_CAST (char *, multi_suffix
));
2140 multi_suffix
= machine_suffix
;
2141 free (CONST_CAST (char *, just_multi_suffix
));
2142 just_multi_suffix
= just_machine_suffix
;
2145 skip_multi_dir
= true;
2148 free (CONST_CAST (char *, multi_os_dir
));
2149 multi_os_dir
= NULL
;
2152 skip_multi_os_dir
= true;
2157 free (CONST_CAST (char *, multi_dir
));
2158 free (CONST_CAST (char *, multi_suffix
));
2159 free (CONST_CAST (char *, just_multi_suffix
));
2162 free (CONST_CAST (char *, multi_os_dir
));
2168 /* Callback for build_search_list. Adds path to obstack being built. */
2170 struct add_to_obstack_info
{
2177 add_to_obstack (char *path
, void *data
)
2179 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2181 if (info
->check_dir
&& !is_directory (path
, false))
2184 if (!info
->first_time
)
2185 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2187 obstack_grow (info
->ob
, path
, strlen (path
));
2189 info
->first_time
= false;
2193 /* Add or change the value of an environment variable, outputting the
2194 change to standard error if in verbose mode. */
2196 xputenv (const char *string
)
2199 fnotice (stderr
, "%s\n", string
);
2200 putenv (CONST_CAST (char *, string
));
2203 /* Build a list of search directories from PATHS.
2204 PREFIX is a string to prepend to the list.
2205 If CHECK_DIR_P is true we ensure the directory exists.
2206 If DO_MULTI is true, multilib paths are output first, then
2208 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2209 It is also used by the --print-search-dirs flag. */
2212 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2213 bool check_dir
, bool do_multi
)
2215 struct add_to_obstack_info info
;
2217 info
.ob
= &collect_obstack
;
2218 info
.check_dir
= check_dir
;
2219 info
.first_time
= true;
2221 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2222 obstack_1grow (&collect_obstack
, '=');
2224 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2226 obstack_1grow (&collect_obstack
, '\0');
2227 return XOBFINISH (&collect_obstack
, char *);
2230 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2234 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2237 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2240 /* Check whether NAME can be accessed in MODE. This is like access,
2241 except that it never considers directories to be executable. */
2244 access_check (const char *name
, int mode
)
2250 if (stat (name
, &st
) < 0
2251 || S_ISDIR (st
.st_mode
))
2255 return access (name
, mode
);
2258 /* Callback for find_a_file. Appends the file name to the directory
2259 path. If the resulting file exists in the right mode, return the
2260 full pathname to the file. */
2262 struct file_at_path_info
{
2271 file_at_path (char *path
, void *data
)
2273 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2274 size_t len
= strlen (path
);
2276 memcpy (path
+ len
, info
->name
, info
->name_len
);
2277 len
+= info
->name_len
;
2279 /* Some systems have a suffix for executable files.
2280 So try appending that first. */
2281 if (info
->suffix_len
)
2283 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2284 if (access_check (path
, info
->mode
) == 0)
2289 if (access_check (path
, info
->mode
) == 0)
2295 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2296 access to check permissions. If DO_MULTI is true, search multilib
2297 paths then non-multilib paths, otherwise do not search multilib paths.
2298 Return 0 if not found, otherwise return its name, allocated with malloc. */
2301 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2304 struct file_at_path_info info
;
2306 #ifdef DEFAULT_ASSEMBLER
2307 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2308 return xstrdup (DEFAULT_ASSEMBLER
);
2311 #ifdef DEFAULT_LINKER
2312 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2313 return xstrdup (DEFAULT_LINKER
);
2316 /* Determine the filename to execute (special case for absolute paths). */
2318 if (IS_ABSOLUTE_PATH (name
))
2320 if (access (name
, mode
) == 0)
2321 return xstrdup (name
);
2327 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2328 info
.name_len
= strlen (info
.name
);
2329 info
.suffix_len
= strlen (info
.suffix
);
2332 return (char*) for_each_path (pprefix
, do_multi
,
2333 info
.name_len
+ info
.suffix_len
,
2334 file_at_path
, &info
);
2337 /* Ranking of prefixes in the sort list. -B prefixes are put before
2340 enum path_prefix_priority
2342 PREFIX_PRIORITY_B_OPT
,
2343 PREFIX_PRIORITY_LAST
2346 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2347 order according to PRIORITY. Within each PRIORITY, new entries are
2350 If WARN is nonzero, we will warn if no file is found
2351 through this prefix. WARN should point to an int
2352 which will be set to 1 if this entry is used.
2354 COMPONENT is the value to be passed to update_path.
2356 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2357 the complete value of machine_suffix.
2358 2 means try both machine_suffix and just_machine_suffix. */
2361 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2362 const char *component
, /* enum prefix_priority */ int priority
,
2363 int require_machine_suffix
, int os_multilib
)
2365 struct prefix_list
*pl
, **prev
;
2368 for (prev
= &pprefix
->plist
;
2369 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2370 prev
= &(*prev
)->next
)
2373 /* Keep track of the longest prefix. */
2375 prefix
= update_path (prefix
, component
);
2376 len
= strlen (prefix
);
2377 if (len
> pprefix
->max_len
)
2378 pprefix
->max_len
= len
;
2380 pl
= XNEW (struct prefix_list
);
2381 pl
->prefix
= prefix
;
2382 pl
->require_machine_suffix
= require_machine_suffix
;
2383 pl
->priority
= priority
;
2384 pl
->os_multilib
= os_multilib
;
2386 /* Insert after PREV. */
2391 /* Same as add_prefix, but prepending target_system_root to prefix. */
2392 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2394 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2395 const char *component
,
2396 /* enum prefix_priority */ int priority
,
2397 int require_machine_suffix
, int os_multilib
)
2399 if (!IS_ABSOLUTE_PATH (prefix
))
2400 fatal_error ("system path %qs is not absolute", prefix
);
2402 if (target_system_root
)
2404 if (target_sysroot_suffix
)
2405 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2406 prefix
= concat (target_system_root
, prefix
, NULL
);
2408 /* We have to override this because GCC's notion of sysroot
2409 moves along with GCC. */
2413 add_prefix (pprefix
, prefix
, component
, priority
,
2414 require_machine_suffix
, os_multilib
);
2417 /* Execute the command specified by the arguments on the current line of spec.
2418 When using pipes, this includes several piped-together commands
2419 with `|' between them.
2421 Return 0 if successful, -1 if failed. */
2427 int n_commands
; /* # of command. */
2429 struct pex_obj
*pex
;
2432 const char *prog
; /* program name. */
2433 const char **argv
; /* vector of args. */
2437 struct command
*commands
; /* each command buffer with above info. */
2439 gcc_assert (!processing_spec_function
);
2443 string
= find_a_file (&exec_prefixes
,
2444 VEC_index (const_char_p
, argbuf
, 0), X_OK
, false);
2446 VEC_replace (const_char_p
, argbuf
, 0, string
);
2447 insert_wrapper (wrapper_string
);
2450 /* Count # of piped commands. */
2451 for (n_commands
= 1, i
= 0; VEC_iterate (const_char_p
, argbuf
, i
, arg
); i
++)
2452 if (strcmp (arg
, "|") == 0)
2455 /* Get storage for each command. */
2456 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2458 /* Split argbuf into its separate piped processes,
2459 and record info about each one.
2460 Also search for the programs that are to be run. */
2462 VEC_safe_push (const_char_p
, heap
, argbuf
, 0);
2464 commands
[0].prog
= VEC_index (const_char_p
, argbuf
, 0); /* first command. */
2465 commands
[0].argv
= VEC_address (const_char_p
, argbuf
);
2467 if (!wrapper_string
)
2469 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2470 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2473 for (n_commands
= 1, i
= 0; VEC_iterate (const_char_p
, argbuf
, i
, arg
); i
++)
2474 if (arg
&& strcmp (arg
, "|") == 0)
2475 { /* each command. */
2476 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2477 fatal_error ("-pipe not supported");
2479 VEC_replace (const_char_p
, argbuf
, i
, 0); /* Termination of
2481 commands
[n_commands
].prog
= VEC_index (const_char_p
, argbuf
, i
+ 1);
2482 commands
[n_commands
].argv
2483 = &(VEC_address (const_char_p
, argbuf
))[i
+ 1];
2484 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2487 commands
[n_commands
].argv
[0] = string
;
2491 /* If -v, print what we are about to do, and maybe query. */
2495 /* For help listings, put a blank line between sub-processes. */
2496 if (print_help_list
)
2497 fputc ('\n', stderr
);
2499 /* Print each piped command as a separate line. */
2500 for (i
= 0; i
< n_commands
; i
++)
2502 const char *const *j
;
2504 if (verbose_only_flag
)
2506 for (j
= commands
[i
].argv
; *j
; j
++)
2509 for (p
= *j
; *p
; ++p
)
2510 if (!ISALNUM ((unsigned char) *p
)
2511 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
2515 fprintf (stderr
, " \"");
2516 for (p
= *j
; *p
; ++p
)
2518 if (*p
== '"' || *p
== '\\' || *p
== '$')
2519 fputc ('\\', stderr
);
2522 fputc ('"', stderr
);
2525 fprintf (stderr
, " %s", *j
);
2529 for (j
= commands
[i
].argv
; *j
; j
++)
2530 fprintf (stderr
, " %s", *j
);
2532 /* Print a pipe symbol after all but the last command. */
2533 if (i
+ 1 != n_commands
)
2534 fprintf (stderr
, " |");
2535 fprintf (stderr
, "\n");
2538 if (verbose_only_flag
!= 0)
2540 /* verbose_only_flag should act as if the spec was
2541 executed, so increment execution_count before
2542 returning. This prevents spurious warnings about
2543 unused linker input files, etc. */
2548 fnotice (stderr
, "\nGo ahead? (y or n) ");
2552 while (getchar () != '\n')
2555 if (i
!= 'y' && i
!= 'Y')
2560 #ifdef ENABLE_VALGRIND_CHECKING
2561 /* Run the each command through valgrind. To simplify prepending the
2562 path to valgrind and the option "-q" (for quiet operation unless
2563 something triggers), we allocate a separate argv array. */
2565 for (i
= 0; i
< n_commands
; i
++)
2571 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2574 argv
= XALLOCAVEC (const char *, argc
+ 3);
2576 argv
[0] = VALGRIND_PATH
;
2578 for (j
= 2; j
< argc
+ 2; j
++)
2579 argv
[j
] = commands
[i
].argv
[j
- 2];
2582 commands
[i
].argv
= argv
;
2583 commands
[i
].prog
= argv
[0];
2587 /* Run each piped subprocess. */
2589 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
2590 ? PEX_RECORD_TIMES
: 0),
2591 progname
, temp_filename
);
2593 fatal_error ("pex_init failed: %m");
2595 for (i
= 0; i
< n_commands
; i
++)
2599 const char *string
= commands
[i
].argv
[0];
2601 errmsg
= pex_run (pex
,
2602 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
2603 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
2604 string
, CONST_CAST (char **, commands
[i
].argv
),
2609 fatal_error (errmsg
);
2613 pfatal_with_name (errmsg
);
2617 if (string
!= commands
[i
].prog
)
2618 free (CONST_CAST (char *, string
));
2623 /* Wait for all the subprocesses to finish. */
2627 struct pex_time
*times
= NULL
;
2630 statuses
= (int *) alloca (n_commands
* sizeof (int));
2631 if (!pex_get_status (pex
, n_commands
, statuses
))
2632 fatal_error ("failed to get exit status: %m");
2634 if (report_times
|| report_times_to_file
)
2636 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
2637 if (!pex_get_times (pex
, n_commands
, times
))
2638 fatal_error ("failed to get process times: %m");
2643 for (i
= 0; i
< n_commands
; ++i
)
2645 int status
= statuses
[i
];
2647 if (WIFSIGNALED (status
))
2650 /* SIGPIPE is a special case. It happens in -pipe mode
2651 when the compiler dies before the preprocessor is done,
2652 or the assembler dies before the compiler is done.
2653 There's generally been an error already, and this is
2654 just fallout. So don't generate another error unless
2655 we would otherwise have succeeded. */
2656 if (WTERMSIG (status
) == SIGPIPE
2657 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2664 internal_error ("%s (program %s)",
2665 strsignal (WTERMSIG (status
)), commands
[i
].prog
);
2667 else if (WIFEXITED (status
)
2668 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2670 if (WEXITSTATUS (status
) > greatest_status
)
2671 greatest_status
= WEXITSTATUS (status
);
2675 if (report_times
|| report_times_to_file
)
2677 struct pex_time
*pt
= ×
[i
];
2680 ut
= ((double) pt
->user_seconds
2681 + (double) pt
->user_microseconds
/ 1.0e6
);
2682 st
= ((double) pt
->system_seconds
2683 + (double) pt
->system_microseconds
/ 1.0e6
);
2688 fnotice (stderr
, "# %s %.2f %.2f\n",
2689 commands
[i
].prog
, ut
, st
);
2691 if (report_times_to_file
)
2694 const char *const *j
;
2696 fprintf (report_times_to_file
, "%g %g", ut
, st
);
2698 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
2701 for (p
= *j
; *p
; ++p
)
2702 if (*p
== '"' || *p
== '\\' || *p
== '$'
2708 fprintf (report_times_to_file
, " \"");
2709 for (p
= *j
; *p
; ++p
)
2711 if (*p
== '"' || *p
== '\\' || *p
== '$')
2712 fputc ('\\', report_times_to_file
);
2713 fputc (*p
, report_times_to_file
);
2715 fputc ('"', report_times_to_file
);
2718 fprintf (report_times_to_file
, " %s", *j
);
2721 fputc ('\n', report_times_to_file
);
2731 /* Find all the switches given to us
2732 and make a vector describing them.
2733 The elements of the vector are strings, one per switch given.
2734 If a switch uses following arguments, then the `part1' field
2735 is the switch itself and the `args' field
2736 is a null-terminated vector containing the following arguments.
2737 Bits in the `live_cond' field are:
2738 SWITCH_LIVE to indicate this switch is true in a conditional spec.
2739 SWITCH_FALSE to indicate this switch is overridden by a later switch.
2740 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
2741 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored
2742 in all do_spec calls afterwards. Used for %<S from self specs.
2743 The `validated' field is nonzero if any spec has looked at this switch;
2744 if it remains zero at the end of the run, it must be meaningless. */
2746 #define SWITCH_LIVE 0x1
2747 #define SWITCH_FALSE 0x2
2748 #define SWITCH_IGNORE 0x4
2749 #define SWITCH_IGNORE_PERMANENTLY 0x8
2755 unsigned int live_cond
;
2756 unsigned char validated
;
2757 unsigned char ordering
;
2760 static struct switchstr
*switches
;
2762 static int n_switches
;
2764 static int n_switches_alloc
;
2766 /* Set to zero if -fcompare-debug is disabled, positive if it's
2767 enabled and we're running the first compilation, negative if it's
2768 enabled and we're running the second compilation. For most of the
2769 time, it's in the range -1..1, but it can be temporarily set to 2
2770 or 3 to indicate that the -fcompare-debug flags didn't come from
2771 the command-line, but rather from the GCC_COMPARE_DEBUG environment
2772 variable, until a synthesized -fcompare-debug flag is added to the
2776 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
2777 int compare_debug_second
;
2779 /* Set to the flags that should be passed to the second compilation in
2780 a -fcompare-debug compilation. */
2781 const char *compare_debug_opt
;
2783 static struct switchstr
*switches_debug_check
[2];
2785 static int n_switches_debug_check
[2];
2787 static int n_switches_alloc_debug_check
[2];
2789 static char *debug_check_temp_file
[2];
2791 /* Language is one of three things:
2793 1) The name of a real programming language.
2794 2) NULL, indicating that no one has figured out
2796 3) '*', indicating that the file should be passed
2801 const char *language
;
2802 struct compiler
*incompiler
;
2807 /* Also a vector of input files specified. */
2809 static struct infile
*infiles
;
2813 static int n_infiles_alloc
;
2815 /* True if multiple input files are being compiled to a single
2818 static bool combine_inputs
;
2820 /* This counts the number of libraries added by lang_specific_driver, so that
2821 we can tell if there were any user supplied any files or libraries. */
2823 static int added_libraries
;
2825 /* And a vector of corresponding output files is made up later. */
2827 const char **outfiles
;
2829 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2831 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2832 is true if we should look for an executable suffix. DO_OBJ
2833 is true if we should look for an object suffix. */
2836 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
2837 int do_obj ATTRIBUTE_UNUSED
)
2839 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2847 len
= strlen (name
);
2849 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2850 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2851 if (do_obj
&& len
> 2
2852 && name
[len
- 2] == '.'
2853 && name
[len
- 1] == 'o')
2855 obstack_grow (&obstack
, name
, len
- 2);
2856 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
2857 name
= XOBFINISH (&obstack
, const char *);
2861 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2862 /* If there is no filetype, make it the executable suffix (which includes
2863 the "."). But don't get confused if we have just "-o". */
2864 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2867 for (i
= len
- 1; i
>= 0; i
--)
2868 if (IS_DIR_SEPARATOR (name
[i
]))
2871 for (i
++; i
< len
; i
++)
2875 obstack_grow (&obstack
, name
, len
);
2876 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
2877 strlen (TARGET_EXECUTABLE_SUFFIX
));
2878 name
= XOBFINISH (&obstack
, const char *);
2885 /* Display the command line switches accepted by gcc. */
2889 printf (_("Usage: %s [options] file...\n"), progname
);
2890 fputs (_("Options:\n"), stdout
);
2892 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
2893 fputs (_(" --help Display this information\n"), stdout
);
2894 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
2895 fputs (_(" --help={target|optimizers|warnings|params|[^]{joined|separate|undocumented}}[,...]\n"), stdout
);
2896 fputs (_(" Display specific types of command line options\n"), stdout
);
2898 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
2899 fputs (_(" --version Display compiler version information\n"), stdout
);
2900 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
2901 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
2902 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
2903 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
2904 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
2905 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
2906 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
2907 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
2909 -print-multi-lib Display the mapping between command line options and\n\
2910 multiple library search directories\n"), stdout
);
2911 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
2912 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout
);
2913 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
2914 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
2915 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
2916 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
2917 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
2918 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
2919 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
2920 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
2921 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout
);
2923 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
2924 prefixes to other gcc components\n"), stdout
);
2925 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
2926 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
2927 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
2928 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
2930 --sysroot=<directory> Use <directory> as the root directory for headers\n\
2931 and libraries\n"), stdout
);
2932 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
2933 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
2934 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
2935 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
2936 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
2937 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
2938 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
2940 -x <language> Specify the language of the following input files\n\
2941 Permissible languages include: c c++ assembler none\n\
2942 'none' means revert to the default behavior of\n\
2943 guessing the language based on the file's extension\n\
2947 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
2948 passed on to the various sub-processes invoked by %s. In order to pass\n\
2949 other options on to these processes the -W<letter> options must be used.\n\
2952 /* The rest of the options are displayed by invocations of the various
2957 add_preprocessor_option (const char *option
, int len
)
2959 VEC_safe_push (char_p
, heap
, preprocessor_options
,
2960 save_string (option
, len
));
2964 add_assembler_option (const char *option
, int len
)
2966 VEC_safe_push (char_p
, heap
, assembler_options
, save_string (option
, len
));
2970 add_linker_option (const char *option
, int len
)
2972 VEC_safe_push (char_p
, heap
, linker_options
, save_string (option
, len
));
2975 /* Allocate space for an input file in infiles. */
2980 if (n_infiles_alloc
== 0)
2982 n_infiles_alloc
= 16;
2983 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
2985 else if (n_infiles_alloc
== n_infiles
)
2987 n_infiles_alloc
*= 2;
2988 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
2992 /* Store an input file with the given NAME and LANGUAGE in
2996 add_infile (const char *name
, const char *language
)
2999 infiles
[n_infiles
].name
= name
;
3000 infiles
[n_infiles
++].language
= language
;
3003 /* Allocate space for a switch in switches. */
3008 if (n_switches_alloc
== 0)
3010 n_switches_alloc
= 16;
3011 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3013 else if (n_switches_alloc
== n_switches
)
3015 n_switches_alloc
*= 2;
3016 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3020 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3021 as validated if VALIDATED. */
3024 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3028 switches
[n_switches
].part1
= opt
+ 1;
3030 switches
[n_switches
].args
= 0;
3033 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3034 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3035 switches
[n_switches
].args
[n_args
] = NULL
;
3038 switches
[n_switches
].live_cond
= 0;
3039 switches
[n_switches
].validated
= validated
;
3040 switches
[n_switches
].ordering
= 0;
3044 /* Handle an option DECODED that is unknown to the option-processing
3045 machinery, but may be known to specs. */
3048 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3050 save_switch (decoded
->canonical_option
[0],
3051 decoded
->canonical_option_num_elements
- 1,
3052 &decoded
->canonical_option
[1], false);
3057 /* Handle an option DECODED that is not marked as CL_DRIVER.
3058 LANG_MASK will always be CL_DRIVER. */
3061 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3062 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3064 /* At this point, non-driver options are accepted (and expected to
3065 be passed down by specs) unless marked to be rejected by the
3066 driver. Options to be rejected by the driver but accepted by the
3067 compilers proper are treated just like completely unknown
3069 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3071 if (option
->flags
& CL_REJECT_DRIVER
)
3072 error ("unrecognized command line option %qs",
3073 decoded
->orig_option_with_args_text
);
3075 driver_unknown_option_callback (decoded
);
3078 /* Note that an option (index OPT_INDEX, argument ARG, value VALUE)
3079 has been successfully handled with a handler for mask MASK. */
3082 driver_post_handling_callback (const struct cl_decoded_option
*decoded ATTRIBUTE_UNUSED
,
3083 unsigned int mask ATTRIBUTE_UNUSED
)
3085 /* Nothing to do here. */
3088 static const char *spec_lang
= 0;
3089 static int last_language_n_infiles
;
3091 /* Handle a driver option; arguments and return value as for
3095 driver_handle_option (struct gcc_options
*opts
,
3096 struct gcc_options
*opts_set
,
3097 const struct cl_decoded_option
*decoded
,
3098 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
3100 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
,
3101 diagnostic_context
*dc
)
3103 size_t opt_index
= decoded
->opt_index
;
3104 const char *arg
= decoded
->arg
;
3105 const char *compare_debug_replacement_opt
;
3106 int value
= decoded
->value
;
3107 bool validated
= false;
3108 bool do_save
= true;
3110 gcc_assert (opts
== &global_options
);
3111 gcc_assert (opts_set
== &global_options_set
);
3112 gcc_assert (kind
== DK_UNSPECIFIED
);
3113 gcc_assert (loc
== UNKNOWN_LOCATION
);
3114 gcc_assert (dc
== global_dc
);
3120 struct spec_list
*sl
;
3122 for (sl
= specs
; sl
; sl
= sl
->next
)
3123 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3124 if (link_command_spec
)
3125 printf ("*link_command:\n%s\n\n", link_command_spec
);
3129 case OPT_dumpversion
:
3130 printf ("%s\n", spec_version
);
3133 case OPT_dumpmachine
:
3134 printf ("%s\n", spec_machine
);
3140 /* CPP driver cannot obtain switch from cc1_options. */
3142 add_preprocessor_option ("--version", strlen ("--version"));
3143 add_assembler_option ("--version", strlen ("--version"));
3144 add_linker_option ("--version", strlen ("--version"));
3148 print_help_list
= 1;
3150 /* CPP driver cannot obtain switch from cc1_options. */
3152 add_preprocessor_option ("--help", 6);
3153 add_assembler_option ("--help", 6);
3154 add_linker_option ("--help", 6);
3158 print_subprocess_help
= 2;
3161 case OPT__target_help
:
3162 print_subprocess_help
= 1;
3164 /* CPP driver cannot obtain switch from cc1_options. */
3166 add_preprocessor_option ("--target-help", 13);
3167 add_assembler_option ("--target-help", 13);
3168 add_linker_option ("--target-help", 13);
3171 case OPT_pass_exit_codes
:
3172 case OPT_print_search_dirs
:
3173 case OPT_print_file_name_
:
3174 case OPT_print_prog_name_
:
3175 case OPT_print_multi_lib
:
3176 case OPT_print_multi_directory
:
3177 case OPT_print_sysroot
:
3178 case OPT_print_multi_os_directory
:
3179 case OPT_print_sysroot_headers_suffix
:
3182 /* These options set the variables specified in common.opt
3183 automatically, and do not need to be saved for spec
3188 case OPT_print_libgcc_file_name
:
3189 print_file_name
= "libgcc.a";
3193 case OPT_fcompare_debug_second
:
3194 compare_debug_second
= 1;
3197 case OPT_fcompare_debug
:
3201 compare_debug_replacement_opt
= "-fcompare-debug=";
3203 goto compare_debug_with_arg
;
3206 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
3208 goto compare_debug_with_arg
;
3215 case OPT_fcompare_debug_
:
3216 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
3217 compare_debug_with_arg
:
3218 gcc_assert (decoded
->canonical_option_num_elements
== 1);
3219 gcc_assert (arg
!= NULL
);
3224 if (compare_debug
< 0)
3225 compare_debug_opt
= NULL
;
3227 compare_debug_opt
= arg
;
3228 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
);
3234 /* Pass the rest of this option to the assembler. */
3236 /* Split the argument at commas. */
3238 for (j
= 0; arg
[j
]; j
++)
3241 add_assembler_option (arg
+ prev
, j
- prev
);
3245 /* Record the part after the last comma. */
3246 add_assembler_option (arg
+ prev
, j
- prev
);
3254 /* Pass the rest of this option to the preprocessor. */
3256 /* Split the argument at commas. */
3258 for (j
= 0; arg
[j
]; j
++)
3261 add_preprocessor_option (arg
+ prev
, j
- prev
);
3265 /* Record the part after the last comma. */
3266 add_preprocessor_option (arg
+ prev
, j
- prev
);
3274 /* Split the argument at commas. */
3276 for (j
= 0; arg
[j
]; j
++)
3279 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
3282 /* Record the part after the last comma. */
3283 add_infile (arg
+ prev
, "*");
3289 add_infile (arg
, "*");
3293 case OPT_Xpreprocessor
:
3294 add_preprocessor_option (arg
, strlen (arg
));
3298 case OPT_Xassembler
:
3299 add_assembler_option (arg
, strlen (arg
));
3304 /* POSIX allows separation of -l and the lib arg; canonicalize
3305 by concatenating -l with its arg */
3306 add_infile (concat ("-l", arg
, NULL
), "*");
3311 /* Similarly, canonicalize -L for linkers that may not accept
3312 separate arguments. */
3313 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
);
3316 case OPT_save_temps
:
3317 save_temps_flag
= SAVE_TEMPS_CWD
;
3321 case OPT_save_temps_
:
3322 if (strcmp (arg
, "cwd") == 0)
3323 save_temps_flag
= SAVE_TEMPS_CWD
;
3324 else if (strcmp (arg
, "obj") == 0
3325 || strcmp (arg
, "object") == 0)
3326 save_temps_flag
= SAVE_TEMPS_OBJ
;
3328 fatal_error ("%qs is an unknown -save-temps option",
3329 decoded
->orig_option_with_args_text
);
3332 case OPT_no_canonical_prefixes
:
3333 /* Already handled as a special case, so ignored here. */
3339 /* These options set the variables specified in common.opt
3340 automatically, but do need to be saved for spec
3346 struct user_specs
*user
= XNEW (struct user_specs
);
3348 user
->next
= (struct user_specs
*) 0;
3349 user
->filename
= arg
;
3350 if (user_specs_tail
)
3351 user_specs_tail
->next
= user
;
3353 user_specs_head
= user
;
3354 user_specs_tail
= user
;
3360 target_system_root
= arg
;
3361 target_system_root_changed
= 1;
3366 if (report_times_to_file
)
3367 fclose (report_times_to_file
);
3368 report_times_to_file
= fopen (arg
, "a");
3374 This is similar to -v except that there is no execution
3375 of the commands and the echoed arguments are quoted. It
3376 is intended for use in shell scripts to capture the
3377 driver-generated command line. */
3378 verbose_only_flag
++;
3385 size_t len
= strlen (arg
);
3387 /* Catch the case where the user has forgotten to append a
3388 directory separator to the path. Note, they may be using
3389 -B to add an executable name prefix, eg "i386-elf-", in
3390 order to distinguish between multiple installations of
3391 GCC in the same directory. Hence we must check to see
3392 if appending a directory separator actually makes a
3393 valid directory name. */
3394 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
3395 && is_directory (arg
, false))
3397 char *tmp
= XNEWVEC (char, len
+ 2);
3399 tmp
[len
] = DIR_SEPARATOR
;
3404 add_prefix (&exec_prefixes
, arg
, NULL
,
3405 PREFIX_PRIORITY_B_OPT
, 0, 0);
3406 add_prefix (&startfile_prefixes
, arg
, NULL
,
3407 PREFIX_PRIORITY_B_OPT
, 0, 0);
3408 add_prefix (&include_prefixes
, arg
, NULL
,
3409 PREFIX_PRIORITY_B_OPT
, 0, 0);
3416 if (!strcmp (spec_lang
, "none"))
3417 /* Suppress the warning if -xnone comes after the last input
3418 file, because alternate command interfaces like g++ might
3419 find it useful to place -xnone after each input file. */
3422 last_language_n_infiles
= n_infiles
;
3428 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3429 arg
= convert_filename (arg
, ! have_c
, 0);
3431 /* Save the output name in case -save-temps=obj was used. */
3432 save_temps_prefix
= xstrdup (arg
);
3433 /* On some systems, ld cannot handle "-o" without a space. So
3434 split the option from its argument. */
3435 save_switch ("-o", 1, &arg
, validated
);
3438 case OPT_static_libgcc
:
3439 case OPT_shared_libgcc
:
3440 case OPT_static_libgfortran
:
3441 case OPT_static_libstdc__
:
3442 /* These are always valid, since gcc.c itself understands the
3443 first two, gfortranspec.c understands -static-libgfortran and
3444 g++spec.c understands -static-libstdc++ */
3449 /* Various driver options need no special processing at this
3450 point, having been handled in a prescan above or being
3451 handled by specs. */
3456 save_switch (decoded
->canonical_option
[0],
3457 decoded
->canonical_option_num_elements
- 1,
3458 &decoded
->canonical_option
[1], validated
);
3462 /* Put the driver's standard set of option handlers in *HANDLERS. */
3465 set_option_handlers (struct cl_option_handlers
*handlers
)
3467 handlers
->unknown_option_callback
= driver_unknown_option_callback
;
3468 handlers
->wrong_lang_callback
= driver_wrong_lang_callback
;
3469 handlers
->post_handling_callback
= driver_post_handling_callback
;
3470 handlers
->num_handlers
= 1;
3471 handlers
->handlers
[0].handler
= driver_handle_option
;
3472 handlers
->handlers
[0].mask
= CL_DRIVER
;
3475 /* Create the vector `switches' and its contents.
3476 Store its length in `n_switches'. */
3479 process_command (unsigned int decoded_options_count
,
3480 struct cl_decoded_option
*decoded_options
)
3484 const char *tooldir_prefix
;
3485 char *(*get_relative_prefix
) (const char *, const char *,
3486 const char *) = NULL
;
3487 struct cl_option_handlers handlers
;
3490 gcc_exec_prefix
= getenv ("GCC_EXEC_PREFIX");
3494 added_libraries
= 0;
3496 /* Figure compiler version from version string. */
3498 compiler_version
= temp1
= xstrdup (version_string
);
3500 for (; *temp1
; ++temp1
)
3509 /* Handle any -no-canonical-prefixes flag early, to assign the function
3510 that builds relative prefixes. This function creates default search
3511 paths that are needed later in normal option handling. */
3513 for (j
= 1; j
< decoded_options_count
; j
++)
3515 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
3517 get_relative_prefix
= make_relative_prefix_ignore_links
;
3521 if (! get_relative_prefix
)
3522 get_relative_prefix
= make_relative_prefix
;
3524 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3525 see if we can create it from the pathname specified in
3526 decoded_options[0].arg. */
3528 gcc_libexec_prefix
= standard_libexec_prefix
;
3530 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3531 if (!gcc_exec_prefix
)
3533 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3534 standard_bindir_prefix
,
3535 standard_exec_prefix
);
3536 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3537 standard_bindir_prefix
,
3538 standard_libexec_prefix
);
3539 if (gcc_exec_prefix
)
3540 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3544 /* make_relative_prefix requires a program name, but
3545 GCC_EXEC_PREFIX is typically a directory name with a trailing
3546 / (which is ignored by make_relative_prefix), so append a
3548 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3549 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
3550 standard_exec_prefix
,
3551 standard_libexec_prefix
);
3553 /* The path is unrelocated, so fallback to the original setting. */
3554 if (!gcc_libexec_prefix
)
3555 gcc_libexec_prefix
= standard_libexec_prefix
;
3561 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3562 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3563 or an automatically created GCC_EXEC_PREFIX from
3564 decoded_options[0].arg. */
3566 /* Do language-specific adjustment/addition of flags. */
3567 lang_specific_driver (&decoded_options
, &decoded_options_count
,
3570 if (gcc_exec_prefix
)
3572 int len
= strlen (gcc_exec_prefix
);
3574 if (len
> (int) sizeof ("/lib/gcc/") - 1
3575 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3577 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3578 if (IS_DIR_SEPARATOR (*temp
)
3579 && strncmp (temp
+ 1, "lib", 3) == 0
3580 && IS_DIR_SEPARATOR (temp
[4])
3581 && strncmp (temp
+ 5, "gcc", 3) == 0)
3582 len
-= sizeof ("/lib/gcc/") - 1;
3585 set_std_prefix (gcc_exec_prefix
, len
);
3586 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3587 PREFIX_PRIORITY_LAST
, 0, 0);
3588 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3589 PREFIX_PRIORITY_LAST
, 0, 0);
3592 /* COMPILER_PATH and LIBRARY_PATH have values
3593 that are lists of directory names with colons. */
3595 temp
= getenv ("COMPILER_PATH");
3598 const char *startp
, *endp
;
3599 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3601 startp
= endp
= temp
;
3604 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3606 strncpy (nstore
, startp
, endp
- startp
);
3608 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3609 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3611 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3612 nstore
[endp
- startp
+ 1] = 0;
3615 nstore
[endp
- startp
] = 0;
3616 add_prefix (&exec_prefixes
, nstore
, 0,
3617 PREFIX_PRIORITY_LAST
, 0, 0);
3618 add_prefix (&include_prefixes
, nstore
, 0,
3619 PREFIX_PRIORITY_LAST
, 0, 0);
3622 endp
= startp
= endp
+ 1;
3629 temp
= getenv (LIBRARY_PATH_ENV
);
3630 if (temp
&& *cross_compile
== '0')
3632 const char *startp
, *endp
;
3633 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3635 startp
= endp
= temp
;
3638 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3640 strncpy (nstore
, startp
, endp
- startp
);
3642 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3643 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3645 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3646 nstore
[endp
- startp
+ 1] = 0;
3649 nstore
[endp
- startp
] = 0;
3650 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3651 PREFIX_PRIORITY_LAST
, 0, 1);
3654 endp
= startp
= endp
+ 1;
3661 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3662 temp
= getenv ("LPATH");
3663 if (temp
&& *cross_compile
== '0')
3665 const char *startp
, *endp
;
3666 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3668 startp
= endp
= temp
;
3671 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3673 strncpy (nstore
, startp
, endp
- startp
);
3675 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3676 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3678 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3679 nstore
[endp
- startp
+ 1] = 0;
3682 nstore
[endp
- startp
] = 0;
3683 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3684 PREFIX_PRIORITY_LAST
, 0, 1);
3687 endp
= startp
= endp
+ 1;
3694 /* Process the options and store input files and switches in their
3697 last_language_n_infiles
= -1;
3699 set_option_handlers (&handlers
);
3701 for (j
= 1; j
< decoded_options_count
; j
++)
3703 switch (decoded_options
[j
].opt_index
)
3715 for (j
= 1; j
< decoded_options_count
; j
++)
3717 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
3719 const char *arg
= decoded_options
[j
].arg
;
3720 const char *p
= strrchr (arg
, '@');
3724 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3725 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
3727 /* For LTO static archive support we handle input file
3728 specifications that are composed of a filename and
3729 an offset like FNAME@OFFSET. */
3732 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
3733 && strlen (p
) == (unsigned int)consumed
)
3735 fname
= (char *)xmalloc (p
- arg
+ 1);
3736 memcpy (fname
, arg
, p
- arg
);
3737 fname
[p
- arg
] = '\0';
3738 /* Only accept non-stdin and existing FNAME parts, otherwise
3739 try with the full name. */
3740 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
3743 fname
= xstrdup (arg
);
3747 fname
= xstrdup (arg
);
3749 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
3750 perror_with_name (fname
);
3752 add_infile (arg
, spec_lang
);
3758 read_cmdline_option (&global_options
, &global_options_set
,
3759 decoded_options
+ j
, UNKNOWN_LOCATION
,
3760 CL_DRIVER
, &handlers
, global_dc
);
3763 /* If -save-temps=obj and -o name, create the prefix to use for %b.
3764 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
3765 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
3767 save_temps_length
= strlen (save_temps_prefix
);
3768 temp
= strrchr (lbasename (save_temps_prefix
), '.');
3771 save_temps_length
-= strlen (temp
);
3772 save_temps_prefix
[save_temps_length
] = '\0';
3776 else if (save_temps_prefix
!= NULL
)
3778 free (save_temps_prefix
);
3779 save_temps_prefix
= NULL
;
3782 if (save_temps_flag
&& use_pipes
)
3784 /* -save-temps overrides -pipe, so that temp files are produced */
3785 if (save_temps_flag
)
3786 warning (0, "-pipe ignored because -save-temps specified");
3792 const char *gcd
= getenv ("GCC_COMPARE_DEBUG");
3794 if (gcd
&& gcd
[0] == '-')
3797 compare_debug_opt
= gcd
;
3799 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
3802 compare_debug_opt
= "-gtoggle";
3805 else if (compare_debug
< 0)
3808 gcc_assert (!compare_debug_opt
);
3811 /* Set up the search paths. We add directories that we expect to
3812 contain GNU Toolchain components before directories specified by
3813 the machine description so that we will find GNU components (like
3814 the GNU assembler) before those of the host system. */
3816 /* If we don't know where the toolchain has been installed, use the
3817 configured-in locations. */
3818 if (!gcc_exec_prefix
)
3821 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
3822 PREFIX_PRIORITY_LAST
, 1, 0);
3823 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
3824 PREFIX_PRIORITY_LAST
, 2, 0);
3825 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3826 PREFIX_PRIORITY_LAST
, 2, 0);
3828 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3829 PREFIX_PRIORITY_LAST
, 1, 0);
3832 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
3833 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3834 dir_separator_str
, NULL
);
3836 /* Look for tools relative to the location from which the driver is
3837 running, or, if that is not available, the configured prefix. */
3839 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
3840 spec_machine
, dir_separator_str
,
3841 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3843 add_prefix (&exec_prefixes
,
3844 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3845 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
3846 add_prefix (&startfile_prefixes
,
3847 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3848 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
3850 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
3851 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
3852 then consider it to relocate with the rest of the GCC installation
3853 if GCC_EXEC_PREFIX is set.
3854 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
3855 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
3857 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3858 standard_bindir_prefix
,
3859 target_system_root
);
3860 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
3862 target_system_root
= tmp_prefix
;
3863 target_system_root_changed
= 1;
3868 /* More prefixes are enabled in main, after we read the specs file
3869 and determine whether this is cross-compilation or not. */
3871 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
3872 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
3874 if (compare_debug
== 2 || compare_debug
== 3)
3877 switches
[n_switches
].part1
= concat ("fcompare-debug=",
3880 switches
[n_switches
].args
= 0;
3881 switches
[n_switches
].live_cond
= 0;
3882 switches
[n_switches
].validated
= 0;
3883 switches
[n_switches
].ordering
= 0;
3888 /* Ensure we only invoke each subprocess once. */
3889 if (print_subprocess_help
|| print_help_list
|| print_version
)
3893 /* Create a dummy input file, so that we can pass
3894 the help option on to the various sub-processes. */
3895 add_infile ("help-dummy", "c");
3899 switches
[n_switches
].part1
= 0;
3901 infiles
[n_infiles
].name
= 0;
3904 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
3905 and place that in the environment. */
3908 set_collect_gcc_options (void)
3913 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
3915 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
3916 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
3919 for (i
= 0; (int) i
< n_switches
; i
++)
3921 const char *const *args
;
3924 obstack_grow (&collect_obstack
, " ", 1);
3928 /* Ignore elided switches. */
3929 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) != 0)
3932 obstack_grow (&collect_obstack
, "'-", 2);
3933 q
= switches
[i
].part1
;
3934 while ((p
= strchr (q
, '\'')))
3936 obstack_grow (&collect_obstack
, q
, p
- q
);
3937 obstack_grow (&collect_obstack
, "'\\''", 4);
3940 obstack_grow (&collect_obstack
, q
, strlen (q
));
3941 obstack_grow (&collect_obstack
, "'", 1);
3943 for (args
= switches
[i
].args
; args
&& *args
; args
++)
3945 obstack_grow (&collect_obstack
, " '", 2);
3947 while ((p
= strchr (q
, '\'')))
3949 obstack_grow (&collect_obstack
, q
, p
- q
);
3950 obstack_grow (&collect_obstack
, "'\\''", 4);
3953 obstack_grow (&collect_obstack
, q
, strlen (q
));
3954 obstack_grow (&collect_obstack
, "'", 1);
3957 obstack_grow (&collect_obstack
, "\0", 1);
3958 xputenv (XOBFINISH (&collect_obstack
, char *));
3961 /* Process a spec string, accumulating and running commands. */
3963 /* These variables describe the input file name.
3964 input_file_number is the index on outfiles of this file,
3965 so that the output file name can be stored for later use by %o.
3966 input_basename is the start of the part of the input file
3967 sans all directory names, and basename_length is the number
3968 of characters starting there excluding the suffix .c or whatever. */
3970 static const char *gcc_input_filename
;
3971 static int input_file_number
;
3972 size_t input_filename_length
;
3973 static int basename_length
;
3974 static int suffixed_basename_length
;
3975 static const char *input_basename
;
3976 static const char *input_suffix
;
3977 #ifndef HOST_LACKS_INODE_NUMBERS
3978 static struct stat input_stat
;
3980 static int input_stat_set
;
3982 /* The compiler used to process the current input file. */
3983 static struct compiler
*input_file_compiler
;
3985 /* These are variables used within do_spec and do_spec_1. */
3987 /* Nonzero if an arg has been started and not yet terminated
3988 (with space, tab or newline). */
3989 static int arg_going
;
3991 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3992 is a temporary file name. */
3993 static int delete_this_arg
;
3995 /* Nonzero means %w has been seen; the next arg to be terminated
3996 is the output file name of this compilation. */
3997 static int this_is_output_file
;
3999 /* Nonzero means %s has been seen; the next arg to be terminated
4000 is the name of a library file and we should try the standard
4001 search dirs for it. */
4002 static int this_is_library_file
;
4004 /* Nonzero means %T has been seen; the next arg to be terminated
4005 is the name of a linker script and we should try all of the
4006 standard search dirs for it. If it is found insert a --script
4007 command line switch and then substitute the full path in place,
4008 otherwise generate an error message. */
4009 static int this_is_linker_script
;
4011 /* Nonzero means that the input of this command is coming from a pipe. */
4012 static int input_from_pipe
;
4014 /* Nonnull means substitute this for any suffix when outputting a switches
4016 static const char *suffix_subst
;
4018 /* If there is an argument being accumulated, terminate it and store it. */
4021 end_going_arg (void)
4027 obstack_1grow (&obstack
, 0);
4028 string
= XOBFINISH (&obstack
, const char *);
4029 if (this_is_library_file
)
4030 string
= find_file (string
);
4031 if (this_is_linker_script
)
4033 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4035 if (full_script_path
== NULL
)
4037 error ("unable to locate default linker script %qs in the library search paths", string
);
4038 /* Script was not found on search path. */
4041 store_arg ("--script", false, false);
4042 string
= full_script_path
;
4044 store_arg (string
, delete_this_arg
, this_is_output_file
);
4045 if (this_is_output_file
)
4046 outfiles
[input_file_number
] = string
;
4052 /* Parse the WRAPPER string which is a comma separated list of the command line
4053 and insert them into the beginning of argbuf. */
4056 insert_wrapper (const char *wrapper
)
4060 char *buf
= xstrdup (wrapper
);
4062 unsigned int old_length
= VEC_length (const_char_p
, argbuf
);
4070 while ((p
= strchr (p
, ',')) != NULL
);
4072 VEC_safe_grow (const_char_p
, heap
, argbuf
, old_length
+ n
);
4073 memmove (VEC_address (const_char_p
, argbuf
) + n
,
4074 VEC_address (const_char_p
, argbuf
),
4075 old_length
* sizeof (const_char_p
));
4086 VEC_replace (const_char_p
, argbuf
, i
, p
);
4089 while ((p
= strchr (p
, ',')) != NULL
);
4090 gcc_assert (i
== n
);
4093 /* Process the spec SPEC and run the commands specified therein.
4094 Returns 0 if the spec is successfully processed; -1 if failed. */
4097 do_spec (const char *spec
)
4101 value
= do_spec_2 (spec
);
4103 /* Force out any unfinished command.
4104 If -pipe, this forces out the last command if it ended in `|'. */
4107 if (VEC_length (const_char_p
, argbuf
) > 0
4108 && !strcmp (VEC_last (const_char_p
, argbuf
), "|"))
4109 VEC_pop (const_char_p
, argbuf
);
4111 set_collect_gcc_options ();
4113 if (VEC_length (const_char_p
, argbuf
) > 0)
4121 do_spec_2 (const char *spec
)
4127 delete_this_arg
= 0;
4128 this_is_output_file
= 0;
4129 this_is_library_file
= 0;
4130 this_is_linker_script
= 0;
4131 input_from_pipe
= 0;
4132 suffix_subst
= NULL
;
4134 result
= do_spec_1 (spec
, 0, NULL
);
4142 /* Process the given spec string and add any new options to the end
4143 of the switches/n_switches array. */
4146 do_option_spec (const char *name
, const char *spec
)
4148 unsigned int i
, value_count
, value_len
;
4149 const char *p
, *q
, *value
;
4150 char *tmp_spec
, *tmp_spec_p
;
4152 if (configure_default_options
[0].name
== NULL
)
4155 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4156 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4158 if (i
== ARRAY_SIZE (configure_default_options
))
4161 value
= configure_default_options
[i
].value
;
4162 value_len
= strlen (value
);
4164 /* Compute the size of the final spec. */
4167 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4173 /* Replace each %(VALUE) by the specified value. */
4174 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4175 + value_count
* (value_len
- strlen ("%(VALUE)")));
4176 tmp_spec_p
= tmp_spec
;
4178 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4180 memcpy (tmp_spec_p
, q
, p
- q
);
4181 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4182 memcpy (tmp_spec_p
, value
, value_len
);
4183 tmp_spec_p
+= value_len
;
4184 q
= p
+ strlen ("%(VALUE)");
4186 strcpy (tmp_spec_p
, q
);
4188 do_self_spec (tmp_spec
);
4191 /* Process the given spec string and add any new options to the end
4192 of the switches/n_switches array. */
4195 do_self_spec (const char *spec
)
4200 do_spec_1 (" ", 0, NULL
);
4202 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
4203 do_self_specs adds the replacements to switches array, so it shouldn't
4204 be processed afterwards. */
4205 for (i
= 0; i
< n_switches
; i
++)
4206 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
4207 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
4209 if (VEC_length (const_char_p
, argbuf
) > 0)
4211 const char **argbuf_copy
;
4212 struct cl_decoded_option
*decoded_options
;
4213 struct cl_option_handlers handlers
;
4214 unsigned int decoded_options_count
;
4217 /* Create a copy of argbuf with a dummy argv[0] entry for
4218 decode_cmdline_options_to_array. */
4219 argbuf_copy
= XNEWVEC (const char *,
4220 VEC_length (const_char_p
, argbuf
) + 1);
4221 argbuf_copy
[0] = "";
4222 memcpy (argbuf_copy
+ 1, VEC_address (const_char_p
, argbuf
),
4223 VEC_length (const_char_p
, argbuf
) * sizeof (const char *));
4225 decode_cmdline_options_to_array (VEC_length (const_char_p
, argbuf
) + 1,
4227 CL_DRIVER
, &decoded_options
,
4228 &decoded_options_count
);
4230 set_option_handlers (&handlers
);
4232 for (j
= 1; j
< decoded_options_count
; j
++)
4234 switch (decoded_options
[j
].opt_index
)
4236 case OPT_SPECIAL_input_file
:
4237 /* Specs should only generate options, not input
4239 if (strcmp (decoded_options
[j
].arg
, "-") != 0)
4240 fatal_error ("switch %qs does not start with %<-%>",
4241 decoded_options
[j
].arg
);
4243 fatal_error ("spec-generated switch is just %<-%>");
4246 case OPT_fcompare_debug_second
:
4247 case OPT_fcompare_debug
:
4248 case OPT_fcompare_debug_
:
4250 /* Avoid duplicate processing of some options from
4251 compare-debug specs; just save them here. */
4252 save_switch (decoded_options
[j
].canonical_option
[0],
4253 (decoded_options
[j
].canonical_option_num_elements
4255 &decoded_options
[j
].canonical_option
[1], false);
4259 read_cmdline_option (&global_options
, &global_options_set
,
4260 decoded_options
+ j
, UNKNOWN_LOCATION
,
4261 CL_DRIVER
, &handlers
, global_dc
);
4267 switches
[n_switches
].part1
= 0;
4271 /* Callback for processing %D and %I specs. */
4273 struct spec_path_info
{
4278 bool separate_options
;
4282 spec_path (char *path
, void *data
)
4284 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
4288 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4291 if (info
->append_len
!= 0)
4293 len
= strlen (path
);
4294 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4297 if (!is_directory (path
, true))
4300 do_spec_1 (info
->option
, 1, NULL
);
4301 if (info
->separate_options
)
4302 do_spec_1 (" ", 0, NULL
);
4304 if (info
->append_len
== 0)
4306 len
= strlen (path
);
4307 save
= path
[len
- 1];
4308 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4309 path
[len
- 1] = '\0';
4312 do_spec_1 (path
, 1, NULL
);
4313 do_spec_1 (" ", 0, NULL
);
4315 /* Must not damage the original path. */
4316 if (info
->append_len
== 0)
4317 path
[len
- 1] = save
;
4322 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
4326 create_at_file (char **argv
)
4328 char *temp_file
= make_temp_file ("");
4329 char *at_argument
= concat ("@", temp_file
, NULL
);
4330 FILE *f
= fopen (temp_file
, "w");
4334 fatal_error ("could not open temporary response file %s",
4337 status
= writeargv (argv
, f
);
4340 fatal_error ("could not write to temporary response file %s",
4343 status
= fclose (f
);
4346 fatal_error ("could not close temporary response file %s",
4349 store_arg (at_argument
, 0, 0);
4351 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
4354 /* True if we should compile INFILE. */
4357 compile_input_file_p (struct infile
*infile
)
4359 if ((!infile
->language
) || (infile
->language
[0] != '*'))
4360 if (infile
->incompiler
== input_file_compiler
)
4365 /* Process each member of VEC as a spec. */
4368 do_specs_vec (VEC(char_p
,heap
) *vec
)
4373 FOR_EACH_VEC_ELT (char_p
, vec
, ix
, opt
)
4375 do_spec_1 (opt
, 1, NULL
);
4376 /* Make each accumulated option a separate argument. */
4377 do_spec_1 (" ", 0, NULL
);
4381 /* Process the sub-spec SPEC as a portion of a larger spec.
4382 This is like processing a whole spec except that we do
4383 not initialize at the beginning and we do not supply a
4384 newline by default at the end.
4385 INSWITCH nonzero means don't process %-sequences in SPEC;
4386 in this case, % is treated as an ordinary character.
4387 This is used while substituting switches.
4388 INSWITCH nonzero also causes SPC not to terminate an argument.
4390 Value is zero unless a line was finished
4391 and the command on that line reported an error. */
4394 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4396 const char *p
= spec
;
4402 /* If substituting a switch, treat all chars like letters.
4403 Otherwise, NL, SPC, TAB and % are special. */
4404 switch (inswitch
? 'a' : c
)
4409 if (VEC_length (const_char_p
, argbuf
) > 0
4410 && !strcmp (VEC_last (const_char_p
, argbuf
), "|"))
4412 /* A `|' before the newline means use a pipe here,
4413 but only if -pipe was specified.
4414 Otherwise, execute now and don't pass the `|' as an arg. */
4417 input_from_pipe
= 1;
4421 VEC_pop (const_char_p
, argbuf
);
4424 set_collect_gcc_options ();
4426 if (VEC_length (const_char_p
, argbuf
) > 0)
4432 /* Reinitialize for a new command, and for a new argument. */
4435 delete_this_arg
= 0;
4436 this_is_output_file
= 0;
4437 this_is_library_file
= 0;
4438 this_is_linker_script
= 0;
4439 input_from_pipe
= 0;
4446 obstack_1grow (&obstack
, c
);
4454 /* Reinitialize for a new argument. */
4455 delete_this_arg
= 0;
4456 this_is_output_file
= 0;
4457 this_is_library_file
= 0;
4458 this_is_linker_script
= 0;
4465 fatal_error ("spec %qs invalid", spec
);
4468 if (save_temps_length
)
4469 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4471 obstack_grow (&obstack
, input_basename
, basename_length
);
4472 if (compare_debug
< 0)
4473 obstack_grow (&obstack
, ".gk", 3);
4478 if (save_temps_length
)
4479 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4481 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4482 if (compare_debug
< 0)
4483 obstack_grow (&obstack
, ".gk", 3);
4488 delete_this_arg
= 2;
4491 /* Dump out the directories specified with LIBRARY_PATH,
4492 followed by the absolute directories
4493 that we search for startfiles. */
4496 struct spec_path_info info
;
4499 info
.append_len
= 0;
4500 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4501 /* Used on systems which record the specified -L dirs
4502 and use them to search for dynamic linking.
4503 Relative directories always come from -B,
4504 and it is better not to use them for searching
4505 at run time. In particular, stage1 loses. */
4506 info
.omit_relative
= true;
4508 info
.omit_relative
= false;
4510 info
.separate_options
= false;
4512 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
4517 /* %efoo means report an error with `foo' as error message
4518 and don't execute any more commands for this file. */
4522 while (*p
!= 0 && *p
!= '\n')
4524 buf
= (char *) alloca (p
- q
+ 1);
4525 strncpy (buf
, q
, p
- q
);
4527 error ("%s", _(buf
));
4532 /* %nfoo means report a notice with `foo' on stderr. */
4536 while (*p
!= 0 && *p
!= '\n')
4538 buf
= (char *) alloca (p
- q
+ 1);
4539 strncpy (buf
, q
, p
- q
);
4541 inform (0, "%s", _(buf
));
4551 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4552 defined, and it is not a directory, and it is
4553 writable, use it. Otherwise, treat this like any
4554 other temporary file. */
4556 if ((!save_temps_flag
)
4557 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4558 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4560 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4561 strlen (HOST_BIT_BUCKET
));
4562 delete_this_arg
= 0;
4567 goto create_temp_file
;
4571 obstack_1grow (&obstack
, '-');
4572 delete_this_arg
= 0;
4575 /* consume suffix */
4576 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4578 if (p
[0] == '%' && p
[1] == 'O')
4583 goto create_temp_file
;
4587 /* consume suffix */
4588 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4590 if (p
[0] == '%' && p
[1] == 'O')
4595 goto create_temp_file
;
4601 struct temp_name
*t
;
4603 const char *suffix
= p
;
4604 char *saved_suffix
= NULL
;
4606 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4608 suffix_length
= p
- suffix
;
4609 if (p
[0] == '%' && p
[1] == 'O')
4612 /* We don't support extra suffix characters after %O. */
4613 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
4614 fatal_error ("spec %qs has invalid %<%%0%c%>", spec
, *p
);
4615 if (suffix_length
== 0)
4616 suffix
= TARGET_OBJECT_SUFFIX
;
4620 = XNEWVEC (char, suffix_length
4621 + strlen (TARGET_OBJECT_SUFFIX
));
4622 strncpy (saved_suffix
, suffix
, suffix_length
);
4623 strcpy (saved_suffix
+ suffix_length
,
4624 TARGET_OBJECT_SUFFIX
);
4626 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4629 if (compare_debug
< 0)
4631 suffix
= concat (".gk", suffix
, NULL
);
4635 /* If -save-temps=obj and -o were specified, use that for the
4637 if (save_temps_length
)
4640 temp_filename_length
4641 = save_temps_length
+ suffix_length
+ 1;
4642 tmp
= (char *) alloca (temp_filename_length
);
4643 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
4644 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
4645 tmp
[save_temps_length
+ suffix_length
] = '\0';
4646 temp_filename
= save_string (tmp
,
4647 temp_filename_length
+ 1);
4648 obstack_grow (&obstack
, temp_filename
,
4649 temp_filename_length
);
4651 delete_this_arg
= 0;
4655 /* If the gcc_input_filename has the same suffix specified
4656 for the %g, %u, or %U, and -save-temps is specified,
4657 we could end up using that file as an intermediate
4658 thus clobbering the user's source file (.e.g.,
4659 gcc -save-temps foo.s would clobber foo.s with the
4660 output of cpp0). So check for this condition and
4661 generate a temp file as the intermediate. */
4663 if (save_temps_flag
)
4666 temp_filename_length
= basename_length
+ suffix_length
+ 1;
4667 tmp
= (char *) alloca (temp_filename_length
);
4668 memcpy (tmp
, input_basename
, basename_length
);
4669 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
4670 tmp
[basename_length
+ suffix_length
] = '\0';
4671 temp_filename
= tmp
;
4673 if (strcmp (temp_filename
, gcc_input_filename
) != 0)
4675 #ifndef HOST_LACKS_INODE_NUMBERS
4676 struct stat st_temp
;
4678 /* Note, set_input() resets input_stat_set to 0. */
4679 if (input_stat_set
== 0)
4681 input_stat_set
= stat (gcc_input_filename
,
4683 if (input_stat_set
>= 0)
4687 /* If we have the stat for the gcc_input_filename
4688 and we can do the stat for the temp_filename
4689 then the they could still refer to the same
4690 file if st_dev/st_ino's are the same. */
4691 if (input_stat_set
!= 1
4692 || stat (temp_filename
, &st_temp
) < 0
4693 || input_stat
.st_dev
!= st_temp
.st_dev
4694 || input_stat
.st_ino
!= st_temp
.st_ino
)
4696 /* Just compare canonical pathnames. */
4697 char* input_realname
= lrealpath (gcc_input_filename
);
4698 char* temp_realname
= lrealpath (temp_filename
);
4699 bool files_differ
= strcmp (input_realname
, temp_realname
);
4700 free (input_realname
);
4701 free (temp_realname
);
4705 temp_filename
= save_string (temp_filename
,
4706 temp_filename_length
+ 1);
4707 obstack_grow (&obstack
, temp_filename
,
4708 temp_filename_length
);
4710 delete_this_arg
= 0;
4716 /* See if we already have an association of %g/%u/%U and
4718 for (t
= temp_names
; t
; t
= t
->next
)
4719 if (t
->length
== suffix_length
4720 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4721 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4724 /* Make a new association if needed. %u and %j
4726 if (t
== 0 || c
== 'u' || c
== 'j')
4730 t
= XNEW (struct temp_name
);
4731 t
->next
= temp_names
;
4734 t
->length
= suffix_length
;
4737 t
->suffix
= saved_suffix
;
4738 saved_suffix
= NULL
;
4741 t
->suffix
= save_string (suffix
, suffix_length
);
4742 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4743 temp_filename
= make_temp_file (t
->suffix
);
4744 temp_filename_length
= strlen (temp_filename
);
4745 t
->filename
= temp_filename
;
4746 t
->filename_length
= temp_filename_length
;
4750 free (saved_suffix
);
4752 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4753 delete_this_arg
= 1;
4761 if (at_file_supplied
)
4763 /* We are going to expand `%i' to `@FILE', where FILE
4764 is a newly-created temporary filename. The filenames
4765 that would usually be expanded in place of %o will be
4766 written to the temporary file. */
4771 for (i
= 0; i
< n_infiles
; i
++)
4772 if (compile_input_file_p (&infiles
[i
]))
4775 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
4777 /* Copy the strings over. */
4778 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
4779 if (compile_input_file_p (&infiles
[i
]))
4781 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
4782 infiles
[i
].compiled
= true;
4787 create_at_file (argv
);
4790 for (i
= 0; (int) i
< n_infiles
; i
++)
4791 if (compile_input_file_p (&infiles
[i
]))
4793 store_arg (infiles
[i
].name
, 0, 0);
4794 infiles
[i
].compiled
= true;
4799 obstack_grow (&obstack
, gcc_input_filename
,
4800 input_filename_length
);
4807 struct spec_path_info info
;
4811 do_spec_1 ("-imultilib", 1, NULL
);
4812 /* Make this a separate argument. */
4813 do_spec_1 (" ", 0, NULL
);
4814 do_spec_1 (multilib_dir
, 1, NULL
);
4815 do_spec_1 (" ", 0, NULL
);
4818 if (gcc_exec_prefix
)
4820 do_spec_1 ("-iprefix", 1, NULL
);
4821 /* Make this a separate argument. */
4822 do_spec_1 (" ", 0, NULL
);
4823 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4824 do_spec_1 (" ", 0, NULL
);
4827 if (target_system_root_changed
||
4828 (target_system_root
&& target_sysroot_hdrs_suffix
))
4830 do_spec_1 ("-isysroot", 1, NULL
);
4831 /* Make this a separate argument. */
4832 do_spec_1 (" ", 0, NULL
);
4833 do_spec_1 (target_system_root
, 1, NULL
);
4834 if (target_sysroot_hdrs_suffix
)
4835 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4836 do_spec_1 (" ", 0, NULL
);
4839 info
.option
= "-isystem";
4840 info
.append
= "include";
4841 info
.append_len
= strlen (info
.append
);
4842 info
.omit_relative
= false;
4843 info
.separate_options
= true;
4845 for_each_path (&include_prefixes
, false, info
.append_len
,
4848 info
.append
= "include-fixed";
4849 if (*sysroot_hdrs_suffix_spec
)
4850 info
.append
= concat (info
.append
, dir_separator_str
,
4851 multilib_dir
, NULL
);
4852 info
.append_len
= strlen (info
.append
);
4853 for_each_path (&include_prefixes
, false, info
.append_len
,
4860 int max
= n_infiles
;
4861 max
+= lang_specific_extra_outfiles
;
4863 if (HAVE_GNU_LD
&& at_file_supplied
)
4865 /* We are going to expand `%o' to `@FILE', where FILE
4866 is a newly-created temporary filename. The filenames
4867 that would usually be expanded in place of %o will be
4868 written to the temporary file. */
4873 /* Convert OUTFILES into a form suitable for writeargv. */
4875 /* Determine how many are non-NULL. */
4876 for (n_files
= 0, i
= 0; i
< max
; i
++)
4877 n_files
+= outfiles
[i
] != NULL
;
4879 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
4881 /* Copy the strings over. */
4882 for (i
= 0, j
= 0; i
< max
; i
++)
4885 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
4890 create_at_file (argv
);
4893 for (i
= 0; i
< max
; i
++)
4895 store_arg (outfiles
[i
], 0, 0);
4900 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4905 this_is_library_file
= 1;
4909 this_is_linker_script
= 1;
4913 outfiles
[input_file_number
] = NULL
;
4917 this_is_output_file
= 1;
4922 unsigned int cur_index
= VEC_length (const_char_p
, argbuf
);
4923 /* Handle the {...} following the %W. */
4925 fatal_error ("spec %qs has invalid %<%%W%c%>", spec
, *p
);
4926 p
= handle_braces (p
+ 1);
4930 /* If any args were output, mark the last one for deletion
4932 if (VEC_length (const_char_p
, argbuf
) != cur_index
)
4933 record_temp_file (VEC_last (const_char_p
, argbuf
), 0, 1);
4937 /* %x{OPTION} records OPTION for %X to output. */
4945 /* Skip past the option value and make a copy. */
4947 fatal_error ("spec %qs has invalid %<%%x%c%>", spec
, *p
);
4950 string
= save_string (p1
+ 1, p
- p1
- 2);
4952 /* See if we already recorded this option. */
4953 FOR_EACH_VEC_ELT (char_p
, linker_options
, ix
, opt
)
4954 if (! strcmp (string
, opt
))
4960 /* This option is new; add it. */
4961 add_linker_option (string
, strlen (string
));
4965 /* Dump out the options accumulated previously using %x. */
4967 do_specs_vec (linker_options
);
4970 /* Dump out the options accumulated previously using -Wa,. */
4972 do_specs_vec (assembler_options
);
4975 /* Dump out the options accumulated previously using -Wp,. */
4977 do_specs_vec (preprocessor_options
);
4980 /* Here are digits and numbers that just process
4981 a certain constant string as a spec. */
4984 value
= do_spec_1 (cc1_spec
, 0, NULL
);
4990 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
4996 value
= do_spec_1 (asm_spec
, 0, NULL
);
5002 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5009 const char *const spec
5010 = (input_file_compiler
->cpp_spec
5011 ? input_file_compiler
->cpp_spec
5013 value
= do_spec_1 (spec
, 0, NULL
);
5020 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5026 value
= do_spec_1 (link_spec
, 0, NULL
);
5032 value
= do_spec_1 (lib_spec
, 0, NULL
);
5038 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5044 /* We assume there is a directory
5045 separator at the end of this string. */
5046 if (target_system_root
)
5048 obstack_grow (&obstack
, target_system_root
,
5049 strlen (target_system_root
));
5050 if (target_sysroot_suffix
)
5051 obstack_grow (&obstack
, target_sysroot_suffix
,
5052 strlen (target_sysroot_suffix
));
5057 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5062 /* Here we define characters other than letters and digits. */
5065 p
= handle_braces (p
);
5071 p
= handle_spec_function (p
);
5077 obstack_1grow (&obstack
, '%');
5084 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5086 suffix_subst
= save_string (p
- 1, len
+ 1);
5091 /* Henceforth ignore the option(s) matching the pattern
5096 int have_wildcard
= 0;
5099 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5102 if (p
[len
-1] == '*')
5105 for (i
= 0; i
< n_switches
; i
++)
5106 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5107 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5109 switches
[i
].live_cond
|= SWITCH_IGNORE
;
5110 switches
[i
].validated
= 1;
5118 if (soft_matched_part
)
5120 do_spec_1 (soft_matched_part
, 1, NULL
);
5121 do_spec_1 (" ", 0, NULL
);
5124 /* Catch the case where a spec string contains something like
5125 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5126 hand side of the :. */
5127 error ("spec failure: %<%%*%> has not been initialized by pattern match");
5130 /* Process a string found as the value of a spec given by name.
5131 This feature allows individual machine descriptions
5132 to add and use their own specs.
5133 %[...] modifies -D options the way %P does;
5134 %(...) uses the spec unmodified. */
5136 warning (0, "use of obsolete %%[ operator in specs");
5139 const char *name
= p
;
5140 struct spec_list
*sl
;
5143 /* The string after the S/P is the name of a spec that is to be
5145 while (*p
&& *p
!= ')' && *p
!= ']')
5148 /* See if it's in the list. */
5149 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5150 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5152 name
= *(sl
->ptr_spec
);
5154 fnotice (stderr
, "Processing spec %c%s%c, which is '%s'\n",
5155 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5164 value
= do_spec_1 (name
, 0, NULL
);
5170 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
5172 const char *y
= name
;
5175 /* Copy all of NAME into BUF, but put __ after
5176 every -D and at the end of each arg. */
5179 if (! strncmp (y
, "-D", 2))
5190 && (*y
== ' ' || *y
== '\t' || *y
== '='
5191 || *y
== '}' || *y
== 0))
5204 value
= do_spec_1 (buf
, 0, NULL
);
5210 /* Discard the closing paren or bracket. */
5217 error ("spec failure: unrecognized spec option %qc", c
);
5223 /* Backslash: treat next character as ordinary. */
5228 /* Ordinary character: put it into the current argument. */
5229 obstack_1grow (&obstack
, c
);
5233 /* End of string. If we are processing a spec function, we need to
5234 end any pending argument. */
5235 if (processing_spec_function
)
5241 /* Look up a spec function. */
5243 static const struct spec_function
*
5244 lookup_spec_function (const char *name
)
5246 const struct spec_function
*sf
;
5248 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5249 if (strcmp (sf
->name
, name
) == 0)
5255 /* Evaluate a spec function. */
5258 eval_spec_function (const char *func
, const char *args
)
5260 const struct spec_function
*sf
;
5261 const char *funcval
;
5263 /* Saved spec processing context. */
5264 VEC(const_char_p
,heap
) *save_argbuf
;
5267 int save_delete_this_arg
;
5268 int save_this_is_output_file
;
5269 int save_this_is_library_file
;
5270 int save_input_from_pipe
;
5271 int save_this_is_linker_script
;
5272 const char *save_suffix_subst
;
5275 sf
= lookup_spec_function (func
);
5277 fatal_error ("unknown spec function %qs", func
);
5279 /* Push the spec processing context. */
5280 save_argbuf
= argbuf
;
5282 save_arg_going
= arg_going
;
5283 save_delete_this_arg
= delete_this_arg
;
5284 save_this_is_output_file
= this_is_output_file
;
5285 save_this_is_library_file
= this_is_library_file
;
5286 save_this_is_linker_script
= this_is_linker_script
;
5287 save_input_from_pipe
= input_from_pipe
;
5288 save_suffix_subst
= suffix_subst
;
5290 /* Create a new spec processing context, and build the function
5294 if (do_spec_2 (args
) < 0)
5295 fatal_error ("error in args to spec function %qs", func
);
5297 /* argbuf_index is an index for the next argument to be inserted, and
5298 so contains the count of the args already inserted. */
5300 funcval
= (*sf
->func
) (VEC_length (const_char_p
, argbuf
),
5301 VEC_address (const_char_p
, argbuf
));
5303 /* Pop the spec processing context. */
5304 VEC_free (const_char_p
, heap
, argbuf
);
5305 argbuf
= save_argbuf
;
5307 arg_going
= save_arg_going
;
5308 delete_this_arg
= save_delete_this_arg
;
5309 this_is_output_file
= save_this_is_output_file
;
5310 this_is_library_file
= save_this_is_library_file
;
5311 this_is_linker_script
= save_this_is_linker_script
;
5312 input_from_pipe
= save_input_from_pipe
;
5313 suffix_subst
= save_suffix_subst
;
5318 /* Handle a spec function call of the form:
5322 ARGS is processed as a spec in a separate context and split into an
5323 argument vector in the normal fashion. The function returns a string
5324 containing a spec which we then process in the caller's context, or
5325 NULL if no processing is required. */
5328 handle_spec_function (const char *p
)
5331 const char *endp
, *funcval
;
5334 processing_spec_function
++;
5336 /* Get the function name. */
5337 for (endp
= p
; *endp
!= '\0'; endp
++)
5339 if (*endp
== '(') /* ) */
5341 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5342 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5343 fatal_error ("malformed spec function name");
5345 if (*endp
!= '(') /* ) */
5346 fatal_error ("no arguments for spec function");
5347 func
= save_string (p
, endp
- p
);
5350 /* Get the arguments. */
5351 for (count
= 0; *endp
!= '\0'; endp
++)
5360 else if (*endp
== '(') /* ) */
5365 fatal_error ("malformed spec function arguments");
5366 args
= save_string (p
, endp
- p
);
5369 /* p now points to just past the end of the spec function expression. */
5371 funcval
= eval_spec_function (func
, args
);
5372 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5378 processing_spec_function
--;
5383 /* Inline subroutine of handle_braces. Returns true if the current
5384 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5386 input_suffix_matches (const char *atom
, const char *end_atom
)
5388 return (input_suffix
5389 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5390 && input_suffix
[end_atom
- atom
] == '\0');
5393 /* Subroutine of handle_braces. Returns true if the current
5394 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
5396 input_spec_matches (const char *atom
, const char *end_atom
)
5398 return (input_file_compiler
5399 && input_file_compiler
->suffix
5400 && input_file_compiler
->suffix
[0] != '\0'
5401 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
5403 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
5406 /* Subroutine of handle_braces. Returns true if a switch
5407 matching the atom bracketed by ATOM and END_ATOM appeared on the
5410 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5413 int len
= end_atom
- atom
;
5414 int plen
= starred
? len
: -1;
5416 for (i
= 0; i
< n_switches
; i
++)
5417 if (!strncmp (switches
[i
].part1
, atom
, len
)
5418 && (starred
|| switches
[i
].part1
[len
] == '\0')
5419 && check_live_switch (i
, plen
))
5425 /* Inline subroutine of handle_braces. Mark all of the switches which
5426 match ATOM (extends to END_ATOM; STARRED indicates whether there
5427 was a star after the atom) for later processing. */
5429 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5432 int len
= end_atom
- atom
;
5433 int plen
= starred
? len
: -1;
5435 for (i
= 0; i
< n_switches
; i
++)
5436 if (!strncmp (switches
[i
].part1
, atom
, len
)
5437 && (starred
|| switches
[i
].part1
[len
] == '\0')
5438 && check_live_switch (i
, plen
))
5439 switches
[i
].ordering
= 1;
5442 /* Inline subroutine of handle_braces. Process all the currently
5443 marked switches through give_switch, and clear the marks. */
5445 process_marked_switches (void)
5449 for (i
= 0; i
< n_switches
; i
++)
5450 if (switches
[i
].ordering
== 1)
5452 switches
[i
].ordering
= 0;
5457 /* Handle a %{ ... } construct. P points just inside the leading {.
5458 Returns a pointer one past the end of the brace block, or 0
5459 if we call do_spec_1 and that returns -1. */
5462 handle_braces (const char *p
)
5464 const char *atom
, *end_atom
;
5465 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5466 const char *orig
= p
;
5474 bool a_must_be_last
= false;
5475 bool ordered_set
= false;
5476 bool disjunct_set
= false;
5477 bool disj_matched
= false;
5478 bool disj_starred
= true;
5479 bool n_way_choice
= false;
5480 bool n_way_matched
= false;
5482 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5489 /* Scan one "atom" (S in the description above of %{}, possibly
5490 with '!', '.', '@', ',', or '*' modifiers). */
5492 a_is_suffix
= false;
5493 a_is_starred
= false;
5494 a_is_negated
= false;
5495 a_is_spectype
= false;
5499 p
++, a_is_negated
= true;
5503 p
++, a_is_suffix
= true;
5505 p
++, a_is_spectype
= true;
5508 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5509 || *p
== ',' || *p
== '.' || *p
== '@')
5514 p
++, a_is_starred
= 1;
5520 /* Substitute the switch(es) indicated by the current atom. */
5522 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5523 || a_is_spectype
|| atom
== end_atom
)
5526 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5529 process_marked_switches ();
5533 /* Substitute some text if the current atom appears as a switch
5535 disjunct_set
= true;
5539 if (atom
== end_atom
)
5541 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5542 || a_is_negated
|| a_is_suffix
|| a_is_spectype
5546 /* An empty term may appear as the last choice of an
5547 N-way choice set; it means "otherwise". */
5548 a_must_be_last
= true;
5549 disj_matched
= !n_way_matched
;
5550 disj_starred
= false;
5554 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
5558 disj_starred
= false;
5560 /* Don't bother testing this atom if we already have a
5562 if (!disj_matched
&& !n_way_matched
)
5565 a_matched
= input_suffix_matches (atom
, end_atom
);
5566 else if (a_is_spectype
)
5567 a_matched
= input_spec_matches (atom
, end_atom
);
5569 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5571 if (a_matched
!= a_is_negated
)
5573 disj_matched
= true;
5575 d_end_atom
= end_atom
;
5582 /* Found the body, that is, the text to substitute if the
5583 current disjunction matches. */
5584 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5585 disj_matched
&& !n_way_matched
);
5589 /* If we have an N-way choice, reset state for the next
5593 n_way_choice
= true;
5594 n_way_matched
|= disj_matched
;
5595 disj_matched
= false;
5596 disj_starred
= true;
5597 d_atom
= d_end_atom
= NULL
;
5606 while (*p
++ != '}');
5611 fatal_error ("braced spec %qs is invalid at %qc", orig
, *p
);
5616 /* Subroutine of handle_braces. Scan and process a brace substitution body
5617 (X in the description of %{} syntax). P points one past the colon;
5618 ATOM and END_ATOM bracket the first atom which was found to be true
5619 (present) in the current disjunction; STARRED indicates whether all
5620 the atoms in the current disjunction were starred (for syntax validation);
5621 MATCHED indicates whether the disjunction matched or not, and therefore
5622 whether or not the body is to be processed through do_spec_1 or just
5623 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5627 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5628 int starred
, int matched
)
5630 const char *body
, *end_body
;
5631 unsigned int nesting_level
;
5632 bool have_subst
= false;
5634 /* Locate the closing } or ;, honoring nested braces.
5635 Trim trailing whitespace. */
5644 if (!--nesting_level
)
5647 else if (*p
== ';' && nesting_level
== 1)
5649 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5651 else if (*p
== '\0')
5657 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5660 if (have_subst
&& !starred
)
5665 /* Copy the substitution body to permanent storage and execute it.
5666 If have_subst is false, this is a simple matter of running the
5667 body through do_spec_1... */
5668 char *string
= save_string (body
, end_body
- body
);
5671 if (do_spec_1 (string
, 0, NULL
) < 0)
5676 /* ... but if have_subst is true, we have to process the
5677 body once for each matching switch, with %* set to the
5678 variant part of the switch. */
5679 unsigned int hard_match_len
= end_atom
- atom
;
5682 for (i
= 0; i
< n_switches
; i
++)
5683 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5684 && check_live_switch (i
, hard_match_len
))
5686 if (do_spec_1 (string
, 0,
5687 &switches
[i
].part1
[hard_match_len
]) < 0)
5689 /* Pass any arguments this switch has. */
5691 suffix_subst
= NULL
;
5699 fatal_error ("braced spec body %qs is invalid", body
);
5702 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5703 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5704 spec, or -1 if either exact match or %* is used.
5706 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5707 whose value does not begin with "no-" is obsoleted by the same value
5708 with the "no-", similarly for a switch with the "no-" prefix. */
5711 check_live_switch (int switchnum
, int prefix_length
)
5713 const char *name
= switches
[switchnum
].part1
;
5716 /* If we already processed this switch and determined if it was
5717 live or not, return our past determination. */
5718 if (switches
[switchnum
].live_cond
!= 0)
5719 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
5720 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
5721 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
5724 /* In the common case of {<at-most-one-letter>*}, a negating
5725 switch would always match, so ignore that case. We will just
5726 send the conflicting switches to the compiler phase. */
5727 if (prefix_length
>= 0 && prefix_length
<= 1)
5730 /* Now search for duplicate in a manner that depends on the name. */
5734 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5735 if (switches
[i
].part1
[0] == 'O')
5737 switches
[switchnum
].validated
= 1;
5738 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5743 case 'W': case 'f': case 'm':
5744 if (! strncmp (name
+ 1, "no-", 3))
5746 /* We have Xno-YYY, search for XYYY. */
5747 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5748 if (switches
[i
].part1
[0] == name
[0]
5749 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5751 switches
[switchnum
].validated
= 1;
5752 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5758 /* We have XYYY, search for Xno-YYY. */
5759 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5760 if (switches
[i
].part1
[0] == name
[0]
5761 && switches
[i
].part1
[1] == 'n'
5762 && switches
[i
].part1
[2] == 'o'
5763 && switches
[i
].part1
[3] == '-'
5764 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5766 switches
[switchnum
].validated
= 1;
5767 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5774 /* Otherwise the switch is live. */
5775 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
5779 /* Pass a switch to the current accumulating command
5780 in the same form that we received it.
5781 SWITCHNUM identifies the switch; it is an index into
5782 the vector of switches gcc received, which is `switches'.
5783 This cannot fail since it never finishes a command line.
5785 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5788 give_switch (int switchnum
, int omit_first_word
)
5790 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
5793 if (!omit_first_word
)
5795 do_spec_1 ("-", 0, NULL
);
5796 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5799 if (switches
[switchnum
].args
!= 0)
5802 for (p
= switches
[switchnum
].args
; *p
; p
++)
5804 const char *arg
= *p
;
5806 do_spec_1 (" ", 0, NULL
);
5809 unsigned length
= strlen (arg
);
5812 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5813 if (arg
[length
] == '.')
5815 (CONST_CAST(char *, arg
))[length
] = 0;
5819 do_spec_1 (arg
, 1, NULL
);
5821 (CONST_CAST(char *, arg
))[length
] = '.';
5822 do_spec_1 (suffix_subst
, 1, NULL
);
5825 do_spec_1 (arg
, 1, NULL
);
5829 do_spec_1 (" ", 0, NULL
);
5830 switches
[switchnum
].validated
= 1;
5833 /* Search for a file named NAME trying various prefixes including the
5834 user's -B prefix and some standard ones.
5835 Return the absolute file name found. If nothing is found, return NAME. */
5838 find_file (const char *name
)
5840 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
5841 return newname
? newname
: name
;
5844 /* Determine whether a directory exists. If LINKER, return 0 for
5845 certain fixed names not needed by the linker. */
5848 is_directory (const char *path1
, bool linker
)
5855 /* Ensure the string ends with "/.". The resulting path will be a
5856 directory even if the given path is a symbolic link. */
5857 len1
= strlen (path1
);
5858 path
= (char *) alloca (3 + len1
);
5859 memcpy (path
, path1
, len1
);
5861 if (!IS_DIR_SEPARATOR (cp
[-1]))
5862 *cp
++ = DIR_SEPARATOR
;
5866 /* Exclude directories that the linker is known to search. */
5868 && IS_DIR_SEPARATOR (path
[0])
5870 && strncmp (path
+ 1, "lib", 3) == 0)
5872 && strncmp (path
+ 1, "usr", 3) == 0
5873 && IS_DIR_SEPARATOR (path
[4])
5874 && strncmp (path
+ 5, "lib", 3) == 0)))
5877 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5880 /* Set up the various global variables to indicate that we're processing
5881 the input file named FILENAME. */
5884 set_input (const char *filename
)
5888 gcc_input_filename
= filename
;
5889 input_filename_length
= strlen (gcc_input_filename
);
5890 input_basename
= lbasename (gcc_input_filename
);
5892 /* Find a suffix starting with the last period,
5893 and set basename_length to exclude that suffix. */
5894 basename_length
= strlen (input_basename
);
5895 suffixed_basename_length
= basename_length
;
5896 p
= input_basename
+ basename_length
;
5897 while (p
!= input_basename
&& *p
!= '.')
5899 if (*p
== '.' && p
!= input_basename
)
5901 basename_length
= p
- input_basename
;
5902 input_suffix
= p
+ 1;
5907 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
5908 we will need to do a stat on the gcc_input_filename. The
5909 INPUT_STAT_SET signals that the stat is needed. */
5913 /* On fatal signals, delete all the temporary files. */
5916 fatal_signal (int signum
)
5918 signal (signum
, SIG_DFL
);
5919 delete_failure_queue ();
5920 delete_temp_files ();
5921 /* Get the same signal again, this time not handled,
5922 so its normal effect occurs. */
5923 kill (getpid (), signum
);
5926 /* Compare the contents of the two files named CMPFILE[0] and
5927 CMPFILE[1]. Return zero if they're identical, nonzero
5931 compare_files (char *cmpfile
[])
5934 FILE *temp
[2] = { NULL
, NULL
};
5940 void *map
[2] = { NULL
, NULL
};
5942 for (i
= 0; i
< 2; i
++)
5946 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
5948 error ("%s: could not determine length of compare-debug file %s",
5949 gcc_input_filename
, cmpfile
[i
]);
5954 length
[i
] = st
.st_size
;
5957 if (!ret
&& length
[0] != length
[1])
5959 error ("%s: -fcompare-debug failure (length)", gcc_input_filename
);
5964 for (i
= 0; i
< 2; i
++)
5966 int fd
= open (cmpfile
[i
], O_RDONLY
);
5969 error ("%s: could not open compare-debug file %s",
5970 gcc_input_filename
, cmpfile
[i
]);
5975 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
5978 if (map
[i
] == (void *) MAP_FAILED
)
5987 if (memcmp (map
[0], map
[1], length
[0]) != 0)
5989 error ("%s: -fcompare-debug failure", gcc_input_filename
);
5994 for (i
= 0; i
< 2; i
++)
5996 munmap ((caddr_t
) map
[i
], length
[i
]);
6005 for (i
= 0; i
< 2; i
++)
6007 temp
[i
] = fopen (cmpfile
[i
], "r");
6010 error ("%s: could not open compare-debug file %s",
6011 gcc_input_filename
, cmpfile
[i
]);
6017 if (!ret
&& temp
[0] && temp
[1])
6021 c0
= fgetc (temp
[0]);
6022 c1
= fgetc (temp
[1]);
6026 error ("%s: -fcompare-debug failure",
6027 gcc_input_filename
);
6036 for (i
= 1; i
>= 0; i
--)
6045 extern int main (int, char **);
6048 main (int argc
, char **argv
)
6052 int linker_was_run
= 0;
6053 int lang_n_infiles
= 0;
6054 int num_linker_inputs
= 0;
6055 char *explicit_link_files
;
6057 char *lto_wrapper_file
;
6059 struct user_specs
*uptr
;
6060 char **old_argv
= argv
;
6061 struct cl_decoded_option
*decoded_options
;
6062 unsigned int decoded_options_count
;
6064 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6065 on ?: in file-scope variable initializations. */
6066 asm_debug
= ASM_DEBUG_SPEC
;
6068 p
= argv
[0] + strlen (argv
[0]);
6069 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6073 xmalloc_set_program_name (progname
);
6075 expandargv (&argc
, &argv
);
6077 /* Determine if any expansions were made. */
6078 if (argv
!= old_argv
)
6079 at_file_supplied
= true;
6081 global_options
= global_options_init
;
6083 decode_cmdline_options_to_array (argc
, CONST_CAST2 (const char **, char **,
6086 &decoded_options
, &decoded_options_count
);
6088 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6089 /* Perform host dependent initialization when needed. */
6090 GCC_DRIVER_HOST_INITIALIZATION
;
6093 /* Unlock the stdio streams. */
6094 unlock_std_streams ();
6096 gcc_init_libintl ();
6098 diagnostic_initialize (global_dc
, 0);
6099 if (atexit (delete_temp_files
) != 0)
6100 fatal_error ("atexit failed");
6102 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6103 signal (SIGINT
, fatal_signal
);
6105 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6106 signal (SIGHUP
, fatal_signal
);
6108 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6109 signal (SIGTERM
, fatal_signal
);
6111 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6112 signal (SIGPIPE
, fatal_signal
);
6115 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6116 receive the signal. A different setting is inheritable */
6117 signal (SIGCHLD
, SIG_DFL
);
6120 /* Allocate the argument vector. */
6123 obstack_init (&obstack
);
6125 /* Build multilib_select, et. al from the separate lines that make up each
6126 multilib selection. */
6128 const char *const *q
= multilib_raw
;
6131 obstack_init (&multilib_obstack
);
6132 while ((p
= *q
++) != (char *) 0)
6133 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6135 obstack_1grow (&multilib_obstack
, 0);
6136 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6138 q
= multilib_matches_raw
;
6139 while ((p
= *q
++) != (char *) 0)
6140 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6142 obstack_1grow (&multilib_obstack
, 0);
6143 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6145 q
= multilib_exclusions_raw
;
6146 while ((p
= *q
++) != (char *) 0)
6147 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6149 obstack_1grow (&multilib_obstack
, 0);
6150 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6153 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6156 obstack_1grow (&multilib_obstack
, ' ');
6157 obstack_grow (&multilib_obstack
,
6158 multilib_defaults_raw
[i
],
6159 strlen (multilib_defaults_raw
[i
]));
6163 obstack_1grow (&multilib_obstack
, 0);
6164 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6167 #ifdef INIT_ENVIRONMENT
6168 /* Set up any other necessary machine specific environment variables. */
6169 xputenv (INIT_ENVIRONMENT
);
6172 /* Make a table of what switches there are (switches, n_switches).
6173 Make a table of specified input files (infiles, n_infiles).
6174 Decode switches that are handled locally. */
6176 process_command (decoded_options_count
, decoded_options
);
6178 /* Initialize the vector of specs to just the default.
6179 This means one element containing 0s, as a terminator. */
6181 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
6182 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6183 n_compilers
= n_default_compilers
;
6185 /* Read specs from a file if there is one. */
6187 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6188 spec_version
, dir_separator_str
, NULL
);
6189 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6191 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6192 /* Read the specs file unless it is a default one. */
6193 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6194 read_specs (specs_file
, TRUE
);
6198 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6199 for any override of as, ld and libraries. */
6200 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
6201 + strlen (just_machine_suffix
) + sizeof ("specs"));
6203 strcpy (specs_file
, standard_exec_prefix
);
6204 strcat (specs_file
, just_machine_suffix
);
6205 strcat (specs_file
, "specs");
6206 if (access (specs_file
, R_OK
) == 0)
6207 read_specs (specs_file
, TRUE
);
6209 /* Process any configure-time defaults specified for the command line
6210 options, via OPTION_DEFAULT_SPECS. */
6211 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6212 do_option_spec (option_default_specs
[i
].name
,
6213 option_default_specs
[i
].spec
);
6215 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6216 of the command line. */
6218 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6219 do_self_spec (driver_self_specs
[i
]);
6223 enum save_temps save
;
6225 if (!compare_debug_second
)
6227 n_switches_debug_check
[1] = n_switches
;
6228 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
6229 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
6232 do_self_spec ("%:compare-debug-self-opt()");
6233 n_switches_debug_check
[0] = n_switches
;
6234 n_switches_alloc_debug_check
[0] = n_switches_alloc
;
6235 switches_debug_check
[0] = switches
;
6237 n_switches
= n_switches_debug_check
[1];
6238 n_switches_alloc
= n_switches_alloc_debug_check
[1];
6239 switches
= switches_debug_check
[1];
6242 /* Avoid crash when computing %j in this early. */
6243 save
= save_temps_flag
;
6244 save_temps_flag
= SAVE_TEMPS_NONE
;
6246 compare_debug
= -compare_debug
;
6247 do_self_spec ("%:compare-debug-self-opt()");
6249 save_temps_flag
= save
;
6251 if (!compare_debug_second
)
6253 n_switches_debug_check
[1] = n_switches
;
6254 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
6255 switches_debug_check
[1] = switches
;
6256 compare_debug
= -compare_debug
;
6257 n_switches
= n_switches_debug_check
[0];
6258 n_switches_alloc
= n_switches_debug_check
[0];
6259 switches
= switches_debug_check
[0];
6263 /* If not cross-compiling, look for executables in the standard
6265 if (*cross_compile
== '0')
6267 if (*md_exec_prefix
)
6269 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6270 PREFIX_PRIORITY_LAST
, 0, 0);
6274 /* Process sysroot_suffix_spec. */
6275 if (*sysroot_suffix_spec
!= 0
6276 && do_spec_2 (sysroot_suffix_spec
) == 0)
6278 if (VEC_length (const_char_p
, argbuf
) > 1)
6279 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6280 else if (VEC_length (const_char_p
, argbuf
) == 1)
6281 target_sysroot_suffix
= xstrdup (VEC_last (const_char_p
, argbuf
));
6284 #ifdef HAVE_LD_SYSROOT
6285 /* Pass the --sysroot option to the linker, if it supports that. If
6286 there is a sysroot_suffix_spec, it has already been processed by
6287 this point, so target_system_root really is the system root we
6289 if (target_system_root
)
6291 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6292 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6293 set_spec ("link", XOBFINISH (&obstack
, const char *));
6297 /* Process sysroot_hdrs_suffix_spec. */
6298 if (*sysroot_hdrs_suffix_spec
!= 0
6299 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6301 if (VEC_length (const_char_p
, argbuf
) > 1)
6302 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6303 else if (VEC_length (const_char_p
, argbuf
) == 1)
6304 target_sysroot_hdrs_suffix
= xstrdup (VEC_last (const_char_p
, argbuf
));
6307 /* Look for startfiles in the standard places. */
6308 if (*startfile_prefix_spec
!= 0
6309 && do_spec_2 (startfile_prefix_spec
) == 0
6310 && do_spec_1 (" ", 0, NULL
) == 0)
6314 FOR_EACH_VEC_ELT (const_char_p
, argbuf
, ndx
, arg
)
6315 add_sysrooted_prefix (&startfile_prefixes
, arg
, "BINUTILS",
6316 PREFIX_PRIORITY_LAST
, 0, 1);
6318 /* We should eventually get rid of all these and stick to
6319 startfile_prefix_spec exclusively. */
6320 else if (*cross_compile
== '0' || target_system_root
)
6322 if (*md_startfile_prefix
)
6323 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6324 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6326 if (*md_startfile_prefix_1
)
6327 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6328 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6330 /* If standard_startfile_prefix is relative, base it on
6331 standard_exec_prefix. This lets us move the installed tree
6332 as a unit. If GCC_EXEC_PREFIX is defined, base
6333 standard_startfile_prefix on that as well.
6335 If the prefix is relative, only search it for native compilers;
6336 otherwise we will search a directory containing host libraries. */
6337 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6338 add_sysrooted_prefix (&startfile_prefixes
,
6339 standard_startfile_prefix
, "BINUTILS",
6340 PREFIX_PRIORITY_LAST
, 0, 1);
6341 else if (*cross_compile
== '0')
6343 add_prefix (&startfile_prefixes
,
6344 concat (gcc_exec_prefix
6345 ? gcc_exec_prefix
: standard_exec_prefix
,
6347 standard_startfile_prefix
, NULL
),
6348 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6351 /* Sysrooted prefixes are relocated because target_system_root is
6352 also relocated by gcc_exec_prefix. */
6353 if (*standard_startfile_prefix_1
)
6354 add_sysrooted_prefix (&startfile_prefixes
,
6355 standard_startfile_prefix_1
, "BINUTILS",
6356 PREFIX_PRIORITY_LAST
, 0, 1);
6357 if (*standard_startfile_prefix_2
)
6358 add_sysrooted_prefix (&startfile_prefixes
,
6359 standard_startfile_prefix_2
, "BINUTILS",
6360 PREFIX_PRIORITY_LAST
, 0, 1);
6363 /* Process any user specified specs in the order given on the command
6365 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6367 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6369 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6372 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6373 if (gcc_exec_prefix
)
6374 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6375 spec_version
, dir_separator_str
, NULL
);
6377 /* Now we have the specs.
6378 Set the `valid' bits for switches that match anything in any spec. */
6380 validate_all_switches ();
6382 /* Now that we have the switches and the specs, set
6383 the subdirectory based on the options. */
6384 set_multilib_dir ();
6386 /* Set up to remember the pathname of gcc and any options
6387 needed for collect. We use argv[0] instead of progname because
6388 we need the complete pathname. */
6389 obstack_init (&collect_obstack
);
6390 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6391 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6392 xputenv (XOBFINISH (&collect_obstack
, char *));
6394 /* Set up to remember the pathname of the lto wrapper. */
6396 lto_wrapper_file
= find_a_file (&exec_prefixes
, "lto-wrapper", X_OK
, false);
6397 if (lto_wrapper_file
)
6399 lto_wrapper_spec
= lto_wrapper_file
;
6400 obstack_init (&collect_obstack
);
6401 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
6402 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
6403 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
6404 strlen (lto_wrapper_spec
) + 1);
6405 xputenv (XOBFINISH (&collect_obstack
, char *));
6408 /* Warn about any switches that no pass was interested in. */
6410 for (i
= 0; (int) i
< n_switches
; i
++)
6411 if (! switches
[i
].validated
)
6412 error ("unrecognized option %<-%s%>", switches
[i
].part1
);
6414 /* Obey some of the options. */
6416 if (print_search_dirs
)
6418 printf (_("install: %s%s\n"),
6419 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
6420 gcc_exec_prefix
? "" : machine_suffix
);
6421 printf (_("programs: %s\n"),
6422 build_search_list (&exec_prefixes
, "", false, false));
6423 printf (_("libraries: %s\n"),
6424 build_search_list (&startfile_prefixes
, "", false, true));
6428 if (print_file_name
)
6430 printf ("%s\n", find_file (print_file_name
));
6434 if (print_prog_name
)
6436 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6437 printf ("%s\n", (newname
? newname
: print_prog_name
));
6441 if (print_multi_lib
)
6443 print_multilib_info ();
6447 if (print_multi_directory
)
6449 if (multilib_dir
== NULL
)
6452 printf ("%s\n", multilib_dir
);
6458 if (target_system_root
)
6460 if (target_sysroot_suffix
)
6461 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
6463 printf ("%s\n", target_system_root
);
6468 if (print_multi_os_directory
)
6470 if (multilib_os_dir
== NULL
)
6473 printf ("%s\n", multilib_os_dir
);
6477 if (print_sysroot_headers_suffix
)
6479 if (*sysroot_hdrs_suffix_spec
)
6481 printf("%s\n", (target_sysroot_hdrs_suffix
6482 ? target_sysroot_hdrs_suffix
6487 /* The error status indicates that only one set of fixed
6488 headers should be built. */
6489 fatal_error ("not configured with sysroot headers suffix");
6492 if (print_help_list
)
6498 printf (_("\nFor bug reporting instructions, please see:\n"));
6499 printf ("%s.\n", bug_report_url
);
6504 /* We do not exit here. Instead we have created a fake input file
6505 called 'help-dummy' which needs to be compiled, and we pass this
6506 on the various sub-processes, along with the --help switch.
6507 Ensure their output appears after ours. */
6508 fputc ('\n', stdout
);
6514 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
6516 printf ("Copyright %s 2011 Free Software Foundation, Inc.\n",
6518 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
6519 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
6524 /* We do not exit here. We use the same mechanism of --help to print
6525 the version of the sub-processes. */
6526 fputc ('\n', stdout
);
6535 fnotice (stderr
, "Target: %s\n", spec_machine
);
6536 fnotice (stderr
, "Configured with: %s\n", configuration_arguments
);
6538 #ifdef THREAD_MODEL_SPEC
6539 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6540 but there's no point in doing all this processing just to get
6541 thread_model back. */
6542 obstack_init (&obstack
);
6543 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6544 obstack_1grow (&obstack
, '\0');
6545 thrmod
= XOBFINISH (&obstack
, const char *);
6547 thrmod
= thread_model
;
6550 fnotice (stderr
, "Thread model: %s\n", thrmod
);
6552 /* compiler_version is truncated at the first space when initialized
6553 from version string, so truncate version_string at the first space
6554 before comparing. */
6555 for (n
= 0; version_string
[n
]; n
++)
6556 if (version_string
[n
] == ' ')
6559 if (! strncmp (version_string
, compiler_version
, n
)
6560 && compiler_version
[n
] == 0)
6561 fnotice (stderr
, "gcc version %s %s\n", version_string
,
6564 fnotice (stderr
, "gcc driver version %s %sexecuting gcc version %s\n",
6565 version_string
, pkgversion_string
, compiler_version
);
6571 if (n_infiles
== added_libraries
)
6572 fatal_error ("no input files");
6574 /* Make a place to record the compiler output file names
6575 that correspond to the input files. */
6578 i
+= lang_specific_extra_outfiles
;
6579 outfiles
= XCNEWVEC (const char *, i
);
6581 /* Record which files were specified explicitly as link input. */
6583 explicit_link_files
= XCNEWVEC (char, n_infiles
);
6585 combine_inputs
= have_o
|| flag_wpa
;
6587 for (i
= 0; (int) i
< n_infiles
; i
++)
6589 const char *name
= infiles
[i
].name
;
6590 struct compiler
*compiler
= lookup_compiler (name
,
6592 infiles
[i
].language
);
6594 if (compiler
&& !(compiler
->combinable
))
6595 combine_inputs
= false;
6597 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6598 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6599 infiles
[i
].incompiler
= compiler
;
6603 input_file_compiler
= compiler
;
6604 infiles
[i
].incompiler
= compiler
;
6608 /* Since there is no compiler for this input file, assume it is a
6610 explicit_link_files
[i
] = 1;
6611 infiles
[i
].incompiler
= NULL
;
6613 infiles
[i
].compiled
= false;
6614 infiles
[i
].preprocessed
= false;
6617 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
6618 fatal_error ("cannot specify -o with -c, -S or -E with multiple files");
6620 for (i
= 0; (int) i
< n_infiles
; i
++)
6622 int this_file_error
= 0;
6624 /* Tell do_spec what to substitute for %i. */
6626 input_file_number
= i
;
6627 set_input (infiles
[i
].name
);
6629 if (infiles
[i
].compiled
)
6632 /* Use the same thing in %o, unless cp->spec says otherwise. */
6634 outfiles
[i
] = gcc_input_filename
;
6636 /* Figure out which compiler from the file's suffix. */
6639 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6640 infiles
[i
].language
);
6642 if (input_file_compiler
)
6644 /* Ok, we found an applicable compiler. Run its spec. */
6646 if (input_file_compiler
->spec
[0] == '#')
6648 error ("%s: %s compiler not installed on this system",
6649 gcc_input_filename
, &input_file_compiler
->spec
[1]);
6650 this_file_error
= 1;
6656 if (debug_check_temp_file
[0])
6657 free (debug_check_temp_file
[0]);
6658 debug_check_temp_file
[0] = NULL
;
6660 if (debug_check_temp_file
[1])
6661 free (debug_check_temp_file
[1]);
6662 debug_check_temp_file
[1] = NULL
;
6665 value
= do_spec (input_file_compiler
->spec
);
6666 infiles
[i
].compiled
= true;
6668 this_file_error
= 1;
6669 else if (compare_debug
&& debug_check_temp_file
[0])
6672 inform (0, "recompiling with -fcompare-debug");
6674 compare_debug
= -compare_debug
;
6675 n_switches
= n_switches_debug_check
[1];
6676 n_switches_alloc
= n_switches_alloc_debug_check
[1];
6677 switches
= switches_debug_check
[1];
6679 value
= do_spec (input_file_compiler
->spec
);
6681 compare_debug
= -compare_debug
;
6682 n_switches
= n_switches_debug_check
[0];
6683 n_switches_alloc
= n_switches_alloc_debug_check
[0];
6684 switches
= switches_debug_check
[0];
6688 error ("during -fcompare-debug recompilation");
6689 this_file_error
= 1;
6692 gcc_assert (debug_check_temp_file
[1]
6693 && strcmp (debug_check_temp_file
[0],
6694 debug_check_temp_file
[1]));
6697 inform (0, "comparing final insns dumps");
6699 if (compare_files (debug_check_temp_file
))
6700 this_file_error
= 1;
6705 if (debug_check_temp_file
[0])
6706 free (debug_check_temp_file
[0]);
6707 debug_check_temp_file
[0] = NULL
;
6709 if (debug_check_temp_file
[1])
6710 free (debug_check_temp_file
[1]);
6711 debug_check_temp_file
[1] = NULL
;
6716 /* If this file's name does not contain a recognized suffix,
6717 record it as explicit linker input. */
6720 explicit_link_files
[i
] = 1;
6722 /* Clear the delete-on-failure queue, deleting the files in it
6723 if this compilation failed. */
6725 if (this_file_error
)
6727 delete_failure_queue ();
6730 /* If this compilation succeeded, don't delete those files later. */
6731 clear_failure_queue ();
6734 /* Reset the input file name to the first compile/object file name, for use
6735 with %b in LINK_SPEC. We use the first input file that we can find
6736 a compiler to compile it instead of using infiles.language since for
6737 languages other than C we use aliases that we then lookup later. */
6742 for (i
= 0; i
< n_infiles
; i
++)
6743 if (infiles
[i
].incompiler
6744 || (infiles
[i
].language
&& infiles
[i
].language
[0] != '*'))
6746 set_input (infiles
[i
].name
);
6753 /* Make sure INPUT_FILE_NUMBER points to first available open
6755 input_file_number
= n_infiles
;
6756 if (lang_specific_pre_link ())
6760 /* Determine if there are any linker input files. */
6761 num_linker_inputs
= 0;
6762 for (i
= 0; (int) i
< n_infiles
; i
++)
6763 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6764 num_linker_inputs
++;
6766 /* Run ld to link all the compiler output files. */
6768 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
6770 int tmp
= execution_count
;
6771 const char *fuse_linker_plugin
= "fuse-linker-plugin";
6773 /* We'll use ld if we can't find collect2. */
6774 if (! strcmp (linker_name_spec
, "collect2"))
6776 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
6778 linker_name_spec
= "ld";
6781 if (switch_matches (fuse_linker_plugin
,
6782 fuse_linker_plugin
+ strlen (fuse_linker_plugin
), 0))
6784 linker_plugin_file_spec
= find_a_file (&exec_prefixes
,
6785 LTOPLUGINSONAME
, R_OK
,
6787 if (!linker_plugin_file_spec
)
6788 fatal_error ("-fuse-linker-plugin, but " LTOPLUGINSONAME
" not found");
6790 lto_gcc_spec
= argv
[0];
6792 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6794 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
6795 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
6797 if (print_subprocess_help
== 1)
6799 printf (_("\nLinker options\n==============\n\n"));
6800 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
6801 " to the linker.\n\n"));
6804 value
= do_spec (link_command_spec
);
6807 linker_was_run
= (tmp
!= execution_count
);
6810 /* If options said don't run linker,
6811 complain about input files to be given to the linker. */
6813 if (! linker_was_run
&& !seen_error ())
6814 for (i
= 0; (int) i
< n_infiles
; i
++)
6815 if (explicit_link_files
[i
]
6816 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
6817 warning (0, "%s: linker input file unused because linking not done",
6820 /* Delete some or all of the temporary files we made. */
6823 delete_failure_queue ();
6824 delete_temp_files ();
6826 if (print_help_list
)
6828 printf (("\nFor bug reporting instructions, please see:\n"));
6829 printf ("%s\n", bug_report_url
);
6832 return (signal_count
!= 0 ? 2
6833 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
6837 /* Find the proper compilation spec for the file name NAME,
6838 whose length is LENGTH. LANGUAGE is the specified language,
6839 or 0 if this file is to be passed to the linker. */
6841 static struct compiler
*
6842 lookup_compiler (const char *name
, size_t length
, const char *language
)
6844 struct compiler
*cp
;
6846 /* If this was specified by the user to be a linker input, indicate that. */
6847 if (language
!= 0 && language
[0] == '*')
6850 /* Otherwise, look for the language, if one is spec'd. */
6853 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6854 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6857 error ("language %s not recognized", language
);
6861 /* Look for a suffix. */
6862 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6864 if (/* The suffix `-' matches only the file name `-'. */
6865 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6866 || (strlen (cp
->suffix
) < length
6867 /* See if the suffix matches the end of NAME. */
6868 && !strcmp (cp
->suffix
,
6869 name
+ length
- strlen (cp
->suffix
))
6874 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6875 /* Look again, but case-insensitively this time. */
6877 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6879 if (/* The suffix `-' matches only the file name `-'. */
6880 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6881 || (strlen (cp
->suffix
) < length
6882 /* See if the suffix matches the end of NAME. */
6883 && ((!strcmp (cp
->suffix
,
6884 name
+ length
- strlen (cp
->suffix
))
6885 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6886 && !strcasecmp (cp
->suffix
,
6887 name
+ length
- strlen (cp
->suffix
)))
6893 if (cp
>= compilers
)
6895 if (cp
->spec
[0] != '@')
6896 /* A non-alias entry: return it. */
6899 /* An alias entry maps a suffix to a language.
6900 Search for the language; pass 0 for NAME and LENGTH
6901 to avoid infinite recursion if language not found. */
6902 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6908 save_string (const char *s
, int len
)
6910 char *result
= XNEWVEC (char, len
+ 1);
6912 memcpy (result
, s
, len
);
6918 pfatal_with_name (const char *name
)
6920 perror_with_name (name
);
6921 delete_temp_files ();
6926 perror_with_name (const char *name
)
6928 error ("%s: %m", name
);
6932 validate_switches_from_spec (const char *spec
)
6934 const char *p
= spec
;
6937 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6938 /* We have a switch spec. */
6939 p
= validate_switches (p
+ 1);
6943 validate_all_switches (void)
6945 struct compiler
*comp
;
6946 struct spec_list
*spec
;
6948 for (comp
= compilers
; comp
->spec
; comp
++)
6949 validate_switches_from_spec (comp
->spec
);
6951 /* Look through the linked list of specs read from the specs file. */
6952 for (spec
= specs
; spec
; spec
= spec
->next
)
6953 validate_switches_from_spec (*spec
->ptr_spec
);
6955 validate_switches_from_spec (link_command_spec
);
6958 /* Look at the switch-name that comes after START
6959 and mark as valid all supplied switches that match it. */
6962 validate_switches (const char *start
)
6964 const char *p
= start
;
6968 bool suffix
= false;
6969 bool starred
= false;
6971 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6980 if (*p
== '.' || *p
== ',')
6984 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6985 || *p
== ',' || *p
== '.' || *p
== '@')
6990 starred
= true, p
++;
6996 /* Mark all matching switches as valid. */
6997 for (i
= 0; i
< n_switches
; i
++)
6998 if (!strncmp (switches
[i
].part1
, atom
, len
)
6999 && (starred
|| switches
[i
].part1
[len
] == 0))
7000 switches
[i
].validated
= 1;
7004 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
7007 if (*p
&& p
[-1] == ':')
7009 while (*p
&& *p
!= ';' && *p
!= '}')
7014 if (*p
== '{' || *p
== '<')
7015 p
= validate_switches (p
+1);
7016 else if (p
[0] == 'W' && p
[1] == '{')
7017 p
= validate_switches (p
+2);
7024 if (*p
&& p
[-1] == ';')
7038 static struct mdswitchstr
*mdswitches
;
7039 static int n_mdswitches
;
7041 /* Check whether a particular argument was used. The first time we
7042 canonicalize the switches to keep only the ones we care about. */
7045 used_arg (const char *p
, int len
)
7050 const char *replace
;
7055 static struct mswitchstr
*mswitches
;
7056 static int n_mswitches
;
7061 struct mswitchstr
*matches
;
7065 /* Break multilib_matches into the component strings of string
7066 and replacement string. */
7067 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7072 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
7074 q
= multilib_matches
;
7083 fatal_error ("multilib spec %qs is invalid",
7088 matches
[i
].len
= q
- matches
[i
].str
;
7090 matches
[i
].replace
= ++q
;
7091 while (*q
!= ';' && *q
!= '\0')
7094 goto invalid_matches
;
7097 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7103 /* Now build a list of the replacement string for switches that we care
7104 about. Make sure we allocate at least one entry. This prevents
7105 xmalloc from calling fatal, and prevents us from re-executing this
7108 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7109 for (i
= 0; i
< n_switches
; i
++)
7110 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
7112 int xlen
= strlen (switches
[i
].part1
);
7113 for (j
= 0; j
< cnt
; j
++)
7114 if (xlen
== matches
[j
].len
7115 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7117 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7118 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7119 mswitches
[n_mswitches
].replace
= (char *) 0;
7120 mswitches
[n_mswitches
].rep_len
= 0;
7126 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7127 on the command line nor any options mutually incompatible with
7129 for (i
= 0; i
< n_mdswitches
; i
++)
7133 for (q
= multilib_options
; *q
!= '\0'; q
++)
7139 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7140 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7142 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7149 if (*q
!= ' ' && *q
!= '\0')
7151 while (*r
!= ' ' && *r
!= '\0')
7154 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7157 if (used_arg (r
, q
- r
))
7162 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7163 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7164 mswitches
[n_mswitches
].replace
= (char *) 0;
7165 mswitches
[n_mswitches
].rep_len
= 0;
7178 for (i
= 0; i
< n_mswitches
; i
++)
7179 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7186 default_arg (const char *p
, int len
)
7190 for (i
= 0; i
< n_mdswitches
; i
++)
7191 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7197 /* Work out the subdirectory to use based on the options. The format of
7198 multilib_select is a list of elements. Each element is a subdirectory
7199 name followed by a list of options followed by a semicolon. The format
7200 of multilib_exclusions is the same, but without the preceding
7201 directory. First gcc will check the exclusions, if none of the options
7202 beginning with an exclamation point are present, and all of the other
7203 options are present, then we will ignore this completely. Passing
7204 that, gcc will consider each multilib_select in turn using the same
7205 rules for matching the options. If a match is found, that subdirectory
7209 set_multilib_dir (void)
7212 unsigned int this_path_len
;
7213 const char *this_path
, *this_arg
;
7214 const char *start
, *end
;
7216 int ok
, ndfltok
, first
;
7219 start
= multilib_defaults
;
7220 while (*start
== ' ' || *start
== '\t')
7222 while (*start
!= '\0')
7225 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7227 while (*start
== ' ' || *start
== '\t')
7235 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
7236 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7238 while (*start
== ' ' || *start
== '\t')
7244 for (end
= start
+ 1;
7245 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7248 obstack_grow (&multilib_obstack
, start
, end
- start
);
7249 obstack_1grow (&multilib_obstack
, 0);
7250 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
7251 mdswitches
[i
++].len
= end
- start
;
7258 p
= multilib_exclusions
;
7261 /* Ignore newlines. */
7268 /* Check the arguments. */
7275 fatal_error ("multilib exclusions %qs is invalid",
7276 multilib_exclusions
);
7286 while (*p
!= ' ' && *p
!= ';')
7289 goto invalid_exclusions
;
7293 if (*this_arg
!= '!')
7301 ok
= used_arg (this_arg
, p
- this_arg
);
7316 p
= multilib_select
;
7319 /* Ignore newlines. */
7326 /* Get the initial path. */
7333 fatal_error ("multilib select %qs is invalid",
7338 this_path_len
= p
- this_path
;
7340 /* Check the arguments. */
7347 goto invalid_select
;
7356 while (*p
!= ' ' && *p
!= ';')
7359 goto invalid_select
;
7363 if (*this_arg
!= '!')
7371 /* If this is a default argument, we can just ignore it.
7372 This is true even if this_arg begins with '!'. Beginning
7373 with '!' does not mean that this argument is necessarily
7374 inappropriate for this library: it merely means that
7375 there is a more specific library which uses this
7376 argument. If this argument is a default, we need not
7377 consider that more specific library. */
7378 ok
= used_arg (this_arg
, p
- this_arg
);
7385 if (default_arg (this_arg
, p
- this_arg
))
7394 if (this_path_len
!= 1
7395 || this_path
[0] != '.')
7397 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
7400 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7401 new_multilib_dir
[this_path_len
] = '\0';
7402 q
= strchr (new_multilib_dir
, ':');
7405 multilib_dir
= new_multilib_dir
;
7412 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7414 while (q
< end
&& *q
!= ':')
7418 char *new_multilib_os_dir
= XNEWVEC (char, end
- q
);
7419 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7420 new_multilib_os_dir
[end
- q
- 1] = '\0';
7421 multilib_os_dir
= new_multilib_os_dir
;
7429 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7430 && strcmp (multilib_os_dir
, ".") == 0)
7432 free (CONST_CAST (char *, multilib_os_dir
));
7433 multilib_os_dir
= NULL
;
7435 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7436 multilib_os_dir
= multilib_dir
;
7439 /* Print out the multiple library subdirectory selection
7440 information. This prints out a series of lines. Each line looks
7441 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7442 required. Only the desired options are printed out, the negative
7443 matches. The options are print without a leading dash. There are
7444 no spaces to make it easy to use the information in the shell.
7445 Each subdirectory is printed only once. This assumes the ordering
7446 generated by the genmultilib script. Also, we leave out ones that match
7450 print_multilib_info (void)
7452 const char *p
= multilib_select
;
7453 const char *last_path
= 0, *this_path
;
7455 unsigned int last_path_len
= 0;
7460 /* Ignore newlines. */
7467 /* Get the initial path. */
7474 fatal_error ("multilib select %qs is invalid", multilib_select
);
7480 /* When --disable-multilib was used but target defines
7481 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7482 to find multilib_os_dir, so skip them from output. */
7483 if (this_path
[0] == '.' && this_path
[1] == ':')
7486 /* Check for matches with the multilib_exclusions. We don't bother
7487 with the '!' in either list. If any of the exclusion rules match
7488 all of its options with the select rule, we skip it. */
7490 const char *e
= multilib_exclusions
;
7491 const char *this_arg
;
7496 /* Ignore newlines. */
7503 /* Check the arguments. */
7512 fatal_error ("multilib exclusion %qs is invalid",
7513 multilib_exclusions
);
7524 while (*e
!= ' ' && *e
!= ';')
7527 goto invalid_exclusion
;
7535 int len
= e
- this_arg
;
7538 goto invalid_select
;
7542 while (*q
!= ' ' && *q
!= ';')
7545 goto invalid_select
;
7549 if (! strncmp (arg
, this_arg
,
7550 (len
< q
- arg
) ? q
- arg
: len
)
7551 || default_arg (this_arg
, e
- this_arg
))
7581 /* If this is a duplicate, skip it. */
7582 skip
= (last_path
!= 0
7583 && (unsigned int) (p
- this_path
) == last_path_len
7584 && ! strncmp (last_path
, this_path
, last_path_len
));
7586 last_path
= this_path
;
7587 last_path_len
= p
- this_path
;
7590 /* If this directory requires any default arguments, we can skip
7591 it. We will already have printed a directory identical to
7592 this one which does not require that default argument. */
7603 goto invalid_select
;
7610 while (*q
!= ' ' && *q
!= ';')
7613 goto invalid_select
;
7618 && default_arg (arg
, q
- arg
))
7633 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7644 goto invalid_select
;
7652 use_arg
= *p
!= '!';
7657 while (*p
!= ' ' && *p
!= ';')
7660 goto invalid_select
;
7672 /* If there are extra options, print them now. */
7673 if (multilib_extra
&& *multilib_extra
)
7675 int print_at
= TRUE
;
7678 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7699 /* getenv built-in spec function.
7701 Returns the value of the environment variable given by its first
7702 argument, concatenated with the second argument. If the
7703 environment variable is not defined, a fatal error is issued. */
7706 getenv_spec_function (int argc
, const char **argv
)
7716 value
= getenv (argv
[0]);
7718 fatal_error ("environment variable %qs not defined", argv
[0]);
7720 /* We have to escape every character of the environment variable so
7721 they are not interpreted as active spec characters. A
7722 particularly painful case is when we are reading a variable
7723 holding a windows path complete with \ separators. */
7724 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
7725 result
= XNEWVAR (char, len
);
7726 for (ptr
= result
; *value
; ptr
+= 2)
7732 strcpy (ptr
, argv
[1]);
7737 /* if-exists built-in spec function.
7739 Checks to see if the file specified by the absolute pathname in
7740 ARGS exists. Returns that pathname if found.
7742 The usual use for this function is to check for a library file
7743 (whose name has been expanded with %s). */
7746 if_exists_spec_function (int argc
, const char **argv
)
7748 /* Must have only one argument. */
7749 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7755 /* if-exists-else built-in spec function.
7757 This is like if-exists, but takes an additional argument which
7758 is returned if the first argument does not exist. */
7761 if_exists_else_spec_function (int argc
, const char **argv
)
7763 /* Must have exactly two arguments. */
7767 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7773 /* replace-outfile built-in spec function.
7775 This looks for the first argument in the outfiles array's name and
7776 replaces it with the second argument. */
7779 replace_outfile_spec_function (int argc
, const char **argv
)
7782 /* Must have exactly two arguments. */
7786 for (i
= 0; i
< n_infiles
; i
++)
7788 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7789 outfiles
[i
] = xstrdup (argv
[1]);
7794 /* remove-outfile built-in spec function.
7796 * This looks for the first argument in the outfiles array's name and
7800 remove_outfile_spec_function (int argc
, const char **argv
)
7803 /* Must have exactly one argument. */
7807 for (i
= 0; i
< n_infiles
; i
++)
7809 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7815 /* Given two version numbers, compares the two numbers.
7816 A version number must match the regular expression
7817 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
7820 compare_version_strings (const char *v1
, const char *v2
)
7825 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
7826 REG_EXTENDED
| REG_NOSUB
) != 0)
7828 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
7829 if (rresult
== REG_NOMATCH
)
7830 fatal_error ("invalid version number %qs", v1
);
7831 else if (rresult
!= 0)
7833 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
7834 if (rresult
== REG_NOMATCH
)
7835 fatal_error ("invalid version number %qs", v2
);
7836 else if (rresult
!= 0)
7839 return strverscmp (v1
, v2
);
7843 /* version_compare built-in spec function.
7845 This takes an argument of the following form:
7847 <comparison-op> <arg1> [<arg2>] <switch> <result>
7849 and produces "result" if the comparison evaluates to true,
7850 and nothing if it doesn't.
7852 The supported <comparison-op> values are:
7854 >= true if switch is a later (or same) version than arg1
7856 < true if switch is an earlier version than arg1
7858 >< true if switch is arg1 or later, and earlier than arg2
7859 <> true if switch is earlier than arg1 or is arg2 or later
7861 If the switch is not present, the condition is false unless
7862 the first character of the <comparison-op> is '!'.
7865 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
7866 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
7869 version_compare_spec_function (int argc
, const char **argv
)
7873 const char *switch_value
= NULL
;
7878 fatal_error ("too few arguments to %%:version-compare");
7879 if (argv
[0][0] == '\0')
7881 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
7883 if (argc
!= nargs
+ 3)
7884 fatal_error ("too many arguments to %%:version-compare");
7886 switch_len
= strlen (argv
[nargs
+ 1]);
7887 for (i
= 0; i
< n_switches
; i
++)
7888 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
7889 && check_live_switch (i
, switch_len
))
7890 switch_value
= switches
[i
].part1
+ switch_len
;
7892 if (switch_value
== NULL
)
7896 comp1
= compare_version_strings (switch_value
, argv
[1]);
7898 comp2
= compare_version_strings (switch_value
, argv
[2]);
7900 comp2
= -1; /* This value unused. */
7903 switch (argv
[0][0] << 8 | argv
[0][1])
7905 case '>' << 8 | '=':
7906 result
= comp1
>= 0;
7908 case '!' << 8 | '<':
7909 result
= comp1
>= 0 || switch_value
== NULL
;
7914 case '!' << 8 | '>':
7915 result
= comp1
< 0 || switch_value
== NULL
;
7917 case '>' << 8 | '<':
7918 result
= comp1
>= 0 && comp2
< 0;
7920 case '<' << 8 | '>':
7921 result
= comp1
< 0 || comp2
>= 0;
7925 fatal_error ("unknown operator %qs in %%:version-compare", argv
[0]);
7930 return argv
[nargs
+ 2];
7933 /* %:include builtin spec function. This differs from %include in that it
7934 can be nested inside a spec, and thus be conditionalized. It takes
7935 one argument, the filename, and looks for it in the startfile path.
7936 The result is always NULL, i.e. an empty expansion. */
7939 include_spec_function (int argc
, const char **argv
)
7946 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
7947 read_specs (file
? file
: argv
[0], FALSE
);
7952 /* %:find-file spec function. This function replaces its argument by
7953 the file found thru find_file, that is the -print-file-name gcc
7956 find_file_spec_function (int argc
, const char **argv
)
7963 file
= find_file (argv
[0]);
7968 /* %:find-plugindir spec function. This function replaces its argument
7969 by the -iplugindir=<dir> option. `dir' is found thru find_file, that
7970 is the -print-file-name gcc program option. */
7972 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
7979 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
7984 /* %:print-asm-header spec function. Print a banner to say that the
7985 following output is from the assembler. */
7988 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
7989 const char **argv ATTRIBUTE_UNUSED
)
7991 printf (_("Assembler options\n=================\n\n"));
7992 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
7997 /* Compute a timestamp to initialize flag_random_seed. */
8000 get_local_tick (void)
8004 /* Get some more or less random data. */
8005 #ifdef HAVE_GETTIMEOFDAY
8009 gettimeofday (&tv
, NULL
);
8010 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
8014 time_t now
= time (NULL
);
8016 if (now
!= (time_t)-1)
8017 ret
= (unsigned) now
;
8024 /* %:compare-debug-dump-opt spec function. Save the last argument,
8025 expected to be the last -fdump-final-insns option, or generate a
8029 compare_debug_dump_opt_spec_function (int arg
,
8030 const char **argv ATTRIBUTE_UNUSED
)
8035 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
8038 fatal_error ("too many arguments to %%:compare-debug-dump-opt");
8040 do_spec_2 ("%{fdump-final-insns=*:%*}");
8041 do_spec_1 (" ", 0, NULL
);
8043 if (VEC_length (const_char_p
, argbuf
) > 0
8044 && strcmp (argv
[VEC_length (const_char_p
, argbuf
) - 1], "."))
8049 name
= xstrdup (argv
[VEC_length (const_char_p
, argbuf
) - 1]);
8054 const char *ext
= NULL
;
8056 if (VEC_length (const_char_p
, argbuf
) > 0)
8058 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
8061 else if (!compare_debug
)
8064 do_spec_2 ("%g.gkd");
8066 do_spec_1 (" ", 0, NULL
);
8068 gcc_assert (VEC_length (const_char_p
, argbuf
) > 0);
8070 name
= concat (VEC_last (const_char_p
, argbuf
), ext
, NULL
);
8072 ret
= concat ("-fdump-final-insns=", name
, NULL
);
8075 which
= compare_debug
< 0;
8076 debug_check_temp_file
[which
] = name
;
8080 unsigned HOST_WIDE_INT value
= get_local_tick () ^ getpid ();
8082 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
8086 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
8095 static const char *debug_auxbase_opt
;
8097 /* %:compare-debug-self-opt spec function. Expands to the options
8098 that are to be passed in the second compilation of
8102 compare_debug_self_opt_spec_function (int arg
,
8103 const char **argv ATTRIBUTE_UNUSED
)
8106 fatal_error ("too many arguments to %%:compare-debug-self-opt");
8108 if (compare_debug
>= 0)
8111 do_spec_2 ("%{c|S:%{o*:%*}}");
8112 do_spec_1 (" ", 0, NULL
);
8114 if (VEC_length (const_char_p
, argbuf
) > 0)
8115 debug_auxbase_opt
= concat ("-auxbase-strip ",
8116 VEC_last (const_char_p
, argbuf
),
8119 debug_auxbase_opt
= NULL
;
8122 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
8123 %<fdump-final-insns=* -w -S -o %j \
8124 %{!fcompare-debug-second:-fcompare-debug-second} \
8125 ", compare_debug_opt
, NULL
);
8128 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
8129 options that are to be passed in the second compilation of
8130 compare-debug. It expects, as an argument, the basename of the
8131 current input file name, with the .gk suffix appended to it. */
8134 compare_debug_auxbase_opt_spec_function (int arg
,
8141 fatal_error ("too few arguments to %%:compare-debug-auxbase-opt");
8144 fatal_error ("too many arguments to %%:compare-debug-auxbase-opt");
8146 if (compare_debug
>= 0)
8149 len
= strlen (argv
[0]);
8150 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
8151 fatal_error ("argument to %%:compare-debug-auxbase-opt "
8152 "does not end in .gk");
8154 if (debug_auxbase_opt
)
8155 return debug_auxbase_opt
;
8157 #define OPT "-auxbase "
8160 name
= (char*) xmalloc (sizeof (OPT
) + len
);
8161 memcpy (name
, OPT
, sizeof (OPT
) - 1);
8162 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
8163 name
[sizeof (OPT
) - 1 + len
] = '\0';
8170 /* %:pass-through-libs spec function. Finds all -l options and input
8171 file names in the lib spec passed to it, and makes a list of them
8172 prepended with the plugin option to cause them to be passed through
8173 to the final link after all the new object files have been added. */
8176 pass_through_libs_spec_func (int argc
, const char **argv
)
8178 char *prepended
= xstrdup (" ");
8180 /* Shlemiel the painter's algorithm. Innately horrible, but at least
8181 we know that there will never be more than a handful of strings to
8182 concat, and it's only once per run, so it's not worth optimising. */
8183 for (n
= 0; n
< argc
; n
++)
8185 char *old
= prepended
;
8186 /* Anything that isn't an option is a full path to an output
8187 file; pass it through if it ends in '.a'. Among options,
8189 if (argv
[n
][0] == '-' && argv
[n
][1] == 'l')
8191 const char *lopt
= argv
[n
] + 2;
8192 /* Handle both joined and non-joined -l options. If for any
8193 reason there's a trailing -l with no joined or following
8194 arg just discard it. */
8195 if (!*lopt
&& ++n
>= argc
)
8199 prepended
= concat (prepended
, "-plugin-opt=-pass-through=-l",
8202 else if (!strcmp (".a", argv
[n
] + strlen (argv
[n
]) - 2))
8204 prepended
= concat (prepended
, "-plugin-opt=-pass-through=",
8205 argv
[n
], " ", NULL
);
8207 if (prepended
!= old
)