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". */
33 /* A Short Introduction to Adding a Command-Line Option.
35 Before adding a command-line option, consider if it is really
36 necessary. Each additional command-line option adds complexity and
37 is difficult to remove in subsequent versions.
39 In the following, consider adding the command-line argument
42 1. Each command-line option is specified in the specs file. The
43 notation is described below in the comment entitled "The Specs
46 2. In this file, add an entry to "option_map" equating the long
47 `--' argument version and any shorter, single letter version. Read
48 the comments in the declaration of "struct option_map" for an
49 explanation. Do not omit the first `-'.
51 3. Look in the "specs" file to determine which program or option
52 list should be given the argument, e.g., "cc1_options". Add the
53 appropriate syntax for the shorter option version to the
54 corresponding "const char *" entry in this file. Omit the first
55 `-' from the option. For example, use `-bar', rather than `--bar'.
57 4. If the argument takes an argument, e.g., `--baz argument1',
58 modify either DEFAULT_SWITCH_TAKES_ARG or
59 DEFAULT_WORD_SWITCH_TAKES_ARG in gcc.h. Omit the first `-'
62 5. Document the option in this file's display_help(). If the
63 option is passed to a subprogram, modify its corresponding
64 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
67 6. Compile and test. Make sure that your new specs file is being
68 read. For example, use a debugger to investigate the value of
69 "specs_file" in main(). */
73 #include "coretypes.h"
74 #include "multilib.h" /* before tm.h */
77 #if ! defined( SIGCHLD ) && defined( SIGCLD )
78 # define SIGCHLD SIGCLD
85 #include "diagnostic.h"
90 # include <sys/mman.h>
92 /* This is on Solaris. */
93 # include <sys/types.h>
98 # define MAP_FAILED ((void *)-1)
101 /* By default there is no special suffix for target executables. */
102 /* FIXME: when autoconf is fixed, remove the host check - dj */
103 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
104 #define HAVE_TARGET_EXECUTABLE_SUFFIX
107 /* By default there is no special suffix for host executables. */
108 #ifdef HOST_EXECUTABLE_SUFFIX
109 #define HAVE_HOST_EXECUTABLE_SUFFIX
111 #define HOST_EXECUTABLE_SUFFIX ""
114 /* By default, the suffix for target object files is ".o". */
115 #ifdef TARGET_OBJECT_SUFFIX
116 #define HAVE_TARGET_OBJECT_SUFFIX
118 #define TARGET_OBJECT_SUFFIX ".o"
121 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
123 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
124 #ifndef LIBRARY_PATH_ENV
125 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
129 #define kill(p,s) raise(s)
132 /* If a stage of compilation returns an exit status >= 1,
133 compilation of that file ceases. */
135 #define MIN_FATAL_STATUS 1
137 /* Flag set by cppspec.c to 1. */
140 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
141 static bool at_file_supplied
;
143 /* Flag saying to pass the greatest exit code returned by a sub-process
144 to the calling program. */
145 static int pass_exit_codes
;
147 /* Definition of string containing the arguments given to configure. */
148 #include "configargs.h"
150 /* Flag saying to print the directories gcc will search through looking for
151 programs, libraries, etc. */
153 static int print_search_dirs
;
155 /* Flag saying to print the full filename of this file
156 as found through our usual search mechanism. */
158 static const char *print_file_name
= NULL
;
160 /* As print_file_name, but search for executable file. */
162 static const char *print_prog_name
= NULL
;
164 /* Flag saying to print the relative path we'd use to
165 find libgcc.a given the current compiler flags. */
167 static int print_multi_directory
;
169 static int print_sysroot
;
171 /* Flag saying to print the relative path we'd use to
172 find OS libraries given the current compiler flags. */
174 static int print_multi_os_directory
;
176 /* Flag saying to print the list of subdirectories and
177 compiler flags used to select them in a standard form. */
179 static int print_multi_lib
;
181 /* Flag saying to print the command line options understood by gcc and its
184 static int print_help_list
;
186 /* Flag saying to print the version of gcc and its sub-processes. */
188 static int print_version
;
190 /* Flag saying to print the sysroot suffix used for searching for
193 static int print_sysroot_headers_suffix
;
195 /* Flag indicating whether we should print the command and arguments */
197 static int verbose_flag
;
199 /* Flag indicating whether we should ONLY print the command and
200 arguments (like verbose_flag) without executing the command.
201 Displayed arguments are quoted so that the generated command
202 line is suitable for execution. This is intended for use in
203 shell scripts to capture the driver-generated command line. */
204 static int verbose_only_flag
;
206 /* Flag indicating how to print command line options of sub-processes. */
208 static int print_subprocess_help
;
210 /* Flag indicating whether we should report subprocess execution times
211 (if this is supported by the system - see pexecute.c). */
213 static int report_times
;
215 /* Whether we should report subprocess execution times to a file. */
217 FILE *report_times_to_file
= NULL
;
219 /* Nonzero means place this string before uses of /, so that include
220 and library files can be found in an alternate location. */
222 #ifdef TARGET_SYSTEM_ROOT
223 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
225 static const char *target_system_root
= 0;
228 /* Nonzero means pass the updated target_system_root to the compiler. */
230 static int target_system_root_changed
;
232 /* Nonzero means append this string to target_system_root. */
234 static const char *target_sysroot_suffix
= 0;
236 /* Nonzero means append this string to target_system_root for headers. */
238 static const char *target_sysroot_hdrs_suffix
= 0;
240 /* Nonzero means write "temp" files in source directory
241 and use the source file's name in them, and don't delete them. */
243 static enum save_temps
{
244 SAVE_TEMPS_NONE
, /* no -save-temps */
245 SAVE_TEMPS_CWD
, /* -save-temps in current directory */
246 SAVE_TEMPS_OBJ
/* -save-temps in object directory */
249 /* Output file to use to get the object directory for -save-temps=obj */
250 static char *save_temps_prefix
= 0;
251 static size_t save_temps_length
= 0;
253 /* Nonzero means pass multiple source files to the compiler at one time. */
255 static int combine_flag
= 0;
257 /* Nonzero means use pipes to communicate between subprocesses.
258 Overridden by either of the above two flags. */
260 static int use_pipes
;
262 /* The compiler version. */
264 static const char *compiler_version
;
266 /* The target version. */
268 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
270 /* The target machine. */
272 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
274 /* Nonzero if cross-compiling.
275 When -b is used, the value comes from the `specs' file. */
277 #ifdef CROSS_DIRECTORY_STRUCTURE
278 static const char *cross_compile
= "1";
280 static const char *cross_compile
= "0";
283 #ifdef MODIFY_TARGET_NAME
285 /* Information on how to alter the target name based on a command-line
286 switch. The only case we support now is simply appending or deleting a
287 string to or from the end of the first part of the configuration name. */
289 enum add_del
{ADD
, DELETE
};
291 static const struct modify_target
293 const char *const sw
;
294 const enum add_del add_del
;
295 const char *const str
;
297 modify_target
[] = MODIFY_TARGET_NAME
;
300 /* Greatest exit code of sub-processes that has been encountered up to
302 static int greatest_status
= 1;
304 /* This is the obstack which we use to allocate many strings. */
306 static struct obstack obstack
;
308 /* This is the obstack to build an environment variable to pass to
309 collect2 that describes all of the relevant switches of what to
310 pass the compiler in building the list of pointers to constructors
313 static struct obstack collect_obstack
;
315 /* This is a list of a wrapper program and its arguments.
316 e.g. wrapper_string of "strace,-c"
317 will cause all programs to run as
318 strace -c program arguments
321 static const char *wrapper_string
;
323 /* Forward declaration for prototypes. */
327 static void init_spec (void);
328 static void store_arg (const char *, int, int);
329 static void insert_wrapper (const char *);
330 static char *load_specs (const char *);
331 static void read_specs (const char *, int);
332 static void set_spec (const char *, const char *);
333 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
334 static char *build_search_list (const struct path_prefix
*, const char *,
336 static void xputenv (const char *);
337 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
339 static int access_check (const char *, int);
340 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
341 static void add_prefix (struct path_prefix
*, const char *, const char *,
343 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
344 const char *, int, int, int);
345 static void translate_options (int *, const char *const **);
346 static char *skip_whitespace (char *);
347 static void delete_if_ordinary (const char *);
348 static void delete_temp_files (void);
349 static void delete_failure_queue (void);
350 static void clear_failure_queue (void);
351 static int check_live_switch (int, int);
352 static const char *handle_braces (const char *);
353 static inline bool input_suffix_matches (const char *, const char *);
354 static inline bool switch_matches (const char *, const char *, int);
355 static inline void mark_matching_switches (const char *, const char *, int);
356 static inline void process_marked_switches (void);
357 static const char *process_brace_body (const char *, const char *, const char *, int, int);
358 static const struct spec_function
*lookup_spec_function (const char *);
359 static const char *eval_spec_function (const char *, const char *);
360 static const char *handle_spec_function (const char *);
361 static char *save_string (const char *, int);
362 static void set_collect_gcc_options (void);
363 static int do_spec_1 (const char *, int, const char *);
364 static int do_spec_2 (const char *);
365 static void do_option_spec (const char *, const char *);
366 static void do_self_spec (const char *);
367 static const char *find_file (const char *);
368 static int is_directory (const char *, bool);
369 static const char *validate_switches (const char *);
370 static void validate_all_switches (void);
371 static inline void validate_switches_from_spec (const char *);
372 static void give_switch (int, int);
373 static int used_arg (const char *, int);
374 static int default_arg (const char *, int);
375 static void set_multilib_dir (void);
376 static void print_multilib_info (void);
377 static void perror_with_name (const char *);
378 static void display_help (void);
379 static void add_preprocessor_option (const char *, int);
380 static void add_assembler_option (const char *, int);
381 static void add_linker_option (const char *, int);
382 static void process_command (int, const char **);
383 static int execute (void);
384 static void alloc_args (void);
385 static void clear_args (void);
386 static void fatal_signal (int);
387 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
388 static void init_gcc_specs (struct obstack
*, const char *, const char *,
391 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
392 static const char *convert_filename (const char *, int, int);
395 static const char *getenv_spec_function (int, const char **);
396 static const char *if_exists_spec_function (int, const char **);
397 static const char *if_exists_else_spec_function (int, const char **);
398 static const char *replace_outfile_spec_function (int, const char **);
399 static const char *version_compare_spec_function (int, const char **);
400 static const char *include_spec_function (int, const char **);
401 static const char *find_file_spec_function (int, const char **);
402 static const char *print_asm_header_spec_function (int, const char **);
403 static const char *compare_debug_dump_opt_spec_function (int, const char **);
404 static const char *compare_debug_self_opt_spec_function (int, const char **);
405 static const char *compare_debug_auxbase_opt_spec_function (int, const char **);
407 /* The Specs Language
409 Specs are strings containing lines, each of which (if not blank)
410 is made up of a program name, and arguments separated by spaces.
411 The program name must be exact and start from root, since no path
412 is searched and it is unreliable to depend on the current working directory.
413 Redirection of input or output is not supported; the subprograms must
414 accept filenames saying what files to read and write.
416 In addition, the specs can contain %-sequences to substitute variable text
417 or for conditional text. Here is a table of all defined %-sequences.
418 Note that spaces are not generated automatically around the results of
419 expanding these sequences; therefore, you can concatenate them together
420 or with constant text in a single argument.
422 %% substitute one % into the program name or argument.
423 %i substitute the name of the input file being processed.
424 %b substitute the basename of the input file being processed.
425 This is the substring up to (and not including) the last period
426 and not including the directory unless -save-temps was specified
427 to put temporaries in a different location.
428 %B same as %b, but include the file suffix (text after the last period).
430 substitute a file name that has suffix SUFFIX and is chosen
431 once per compilation, and mark the argument a la %d. To reduce
432 exposure to denial-of-service attacks, the file name is now
433 chosen in a way that is hard to predict even when previously
434 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
435 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
436 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
437 had been pre-processed. Previously, %g was simply substituted
438 with a file name chosen once per compilation, without regard
439 to any appended suffix (which was therefore treated just like
440 ordinary text), making such attacks more likely to succeed.
442 like %g, but if -pipe is in effect, expands simply to "-".
444 like %g, but if -pipe is in effect, expands to nothing. (We have both
445 %| and %m to accommodate differences between system assemblers; see
446 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
448 like %g, but generates a new temporary file name even if %uSUFFIX
451 substitutes the last file name generated with %uSUFFIX, generating a
452 new one if there is no such last file name. In the absence of any
453 %uSUFFIX, this is just like %gSUFFIX, except they don't share
454 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
455 would involve the generation of two distinct file names, one
456 for each `%g.s' and another for each `%U.s'. Previously, %U was
457 simply substituted with a file name chosen for the previous %u,
458 without regard to any appended suffix.
460 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
461 writable, and if save-temps is off; otherwise, substitute the name
462 of a temporary file, just like %u. This temporary file is not
463 meant for communication between processes, but rather as a junk
466 substitutes .SUFFIX for the suffixes of a matched switch's args when
467 it is subsequently output with %*. SUFFIX is terminated by the next
469 %d marks the argument containing or following the %d as a
470 temporary file name, so that that file will be deleted if GCC exits
471 successfully. Unlike %g, this contributes no text to the argument.
472 %w marks the argument containing or following the %w as the
473 "output file" of this compilation. This puts the argument
474 into the sequence of arguments that %o will substitute later.
475 %V indicates that this compilation produces no "output file".
477 like %{...} but mark last argument supplied within
478 as a file to be deleted on failure.
479 %o substitutes the names of all the output files, with spaces
480 automatically placed around them. You should write spaces
481 around the %o as well or the results are undefined.
482 %o is for use in the specs for running the linker.
483 Input files whose names have no recognized suffix are not compiled
484 at all, but they are included among the output files, so they will
486 %O substitutes the suffix for object files. Note that this is
487 handled specially when it immediately follows %g, %u, or %U
488 (with or without a suffix argument) because of the need for
489 those to form complete file names. The handling is such that
490 %O is treated exactly as if it had already been substituted,
491 except that %g, %u, and %U do not currently support additional
492 SUFFIX characters following %O as they would following, for
494 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
495 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
496 and -B options) and -imultilib as necessary.
497 %s current argument is the name of a library or startup file of some sort.
498 Search for that file in a standard list of directories
499 and substitute the full name found.
500 %eSTR Print STR as an error message. STR is terminated by a newline.
501 Use this when inconsistent options are detected.
502 %nSTR Print STR as a notice. STR is terminated by a newline.
503 %x{OPTION} Accumulate an option for %X.
504 %X Output the accumulated linker options specified by compilations.
505 %Y Output the accumulated assembler options specified by compilations.
506 %Z Output the accumulated preprocessor options specified by compilations.
507 %a process ASM_SPEC as a spec.
508 This allows config.h to specify part of the spec for running as.
509 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
510 used here. This can be used to run a post-processor after the
511 assembler has done its job.
512 %D Dump out a -L option for each directory in startfile_prefixes.
513 If multilib_dir is set, extra entries are generated with it affixed.
514 %l process LINK_SPEC as a spec.
515 %L process LIB_SPEC as a spec.
516 %G process LIBGCC_SPEC as a spec.
517 %R Output the concatenation of target_system_root and
518 target_sysroot_suffix.
519 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
520 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
521 %C process CPP_SPEC as a spec.
522 %1 process CC1_SPEC as a spec.
523 %2 process CC1PLUS_SPEC as a spec.
524 %* substitute the variable part of a matched option. (See below.)
525 Note that each comma in the substituted string is replaced by
527 %<S remove all occurrences of -S from the command line.
528 Note - this command is position dependent. % commands in the
529 spec string before this one will see -S, % commands in the
530 spec string after this one will not.
531 %<S* remove all occurrences of all switches beginning with -S from the
534 Call the named function FUNCTION, passing it ARGS. ARGS is
535 first processed as a nested spec string, then split into an
536 argument vector in the usual fashion. The function returns
537 a string which is processed as if it had appeared literally
538 as part of the current spec.
539 %{S} substitutes the -S switch, if that switch was given to GCC.
540 If that switch was not specified, this substitutes nothing.
541 Here S is a metasyntactic variable.
542 %{S*} substitutes all the switches specified to GCC whose names start
543 with -S. This is used for -o, -I, etc; switches that take
544 arguments. GCC considers `-o foo' as being one switch whose
545 name starts with `o'. %{o*} would substitute this text,
546 including the space; thus, two arguments would be generated.
547 %{S*&T*} likewise, but preserve order of S and T options (the order
548 of S and T in the spec is not significant). Can be any number
549 of ampersand-separated variables; for each the wild card is
550 optional. Useful for CPP as %{D*&U*&A*}.
552 %{S:X} substitutes X, if the -S switch was given to GCC.
553 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
554 %{S*:X} substitutes X if one or more switches whose names start
555 with -S was given to GCC. Normally X is substituted only
556 once, no matter how many such switches appeared. However,
557 if %* appears somewhere in X, then X will be substituted
558 once for each matching switch, with the %* replaced by the
559 part of that switch that matched the '*'.
560 %{.S:X} substitutes X, if processing a file with suffix S.
561 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
562 %{,S:X} substitutes X, if processing a file which will use spec S.
563 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
565 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
566 combined with '!', '.', ',', and '*' as above binding stronger
568 If %* appears in X, all of the alternatives must be starred, and
569 only the first matching alternative is substituted.
570 %{S:X; if S was given to GCC, substitutes X;
571 T:Y; else if T was given to GCC, substitutes Y;
572 :D} else substitutes D. There can be as many clauses as you need.
573 This may be combined with '.', '!', ',', '|', and '*' as above.
575 %(Spec) processes a specification defined in a specs file as *Spec:
576 %[Spec] as above, but put __ around -D arguments
578 The conditional text X in a %{S:X} or similar construct may contain
579 other nested % constructs or spaces, or even newlines. They are
580 processed as usual, as described above. Trailing white space in X is
581 ignored. White space may also appear anywhere on the left side of the
582 colon in these constructs, except between . or * and the corresponding
585 The -O, -f, -m, and -W switches are handled specifically in these
586 constructs. If another value of -O or the negated form of a -f, -m, or
587 -W switch is found later in the command line, the earlier switch
588 value is ignored, except with {S*} where S is just one letter; this
589 passes all matching options.
591 The character | at the beginning of the predicate text is used to indicate
592 that a command should be piped to the following command, but only if -pipe
595 Note that it is built into GCC which switches take arguments and which
596 do not. You might think it would be useful to generalize this to
597 allow each compiler's spec to say which switches take arguments. But
598 this cannot be done in a consistent fashion. GCC cannot even decide
599 which input files have been specified without knowing which switches
600 take arguments, and it must know which input files to compile in order
601 to tell which compilers to run.
603 GCC also knows implicitly that arguments starting in `-l' are to be
604 treated as compiler output files, and passed to the linker in their
605 proper position among the other output files. */
607 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
609 /* config.h can define ASM_SPEC to provide extra args to the assembler
610 or extra switch-translations. */
615 /* config.h can define ASM_FINAL_SPEC to run a post processor after
616 the assembler has run. */
617 #ifndef ASM_FINAL_SPEC
618 #define ASM_FINAL_SPEC ""
621 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
622 or extra switch-translations. */
627 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
628 or extra switch-translations. */
633 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
634 or extra switch-translations. */
636 #define CC1PLUS_SPEC ""
639 /* config.h can define LINK_SPEC to provide extra args to the linker
640 or extra switch-translations. */
645 /* config.h can define LIB_SPEC to override the default libraries. */
647 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
652 /* XXX: valid only for GNU ld */
653 /* XXX: should exactly match hooks provided by libmudflap.a */
654 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
655 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
656 --wrap=mmap --wrap=munmap --wrap=alloca\
657 } %{fmudflapth: --wrap=pthread_create\
658 }} %{fmudflap|fmudflapth: --wrap=main}"
661 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
664 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
667 #if defined(REAL_LIBGCC_SPEC)
668 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
669 #elif defined(LINK_LIBGCC_SPECIAL_1)
670 /* Have gcc do the search for libgcc.a. */
671 #define LIBGCC_SPEC "libgcc.a%s"
673 #define LIBGCC_SPEC "-lgcc"
677 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
678 #ifndef STARTFILE_SPEC
679 #define STARTFILE_SPEC \
680 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
683 /* config.h can define SWITCHES_NEED_SPACES to control which options
684 require spaces between the option and the argument.
686 We define SWITCHES_NEED_SPACES to include "o" by default. This
687 causes "-ofoo.o" to be split into "-o foo.o" during the initial
688 processing of the command-line, before being seen by the specs
689 machinery. This makes sure we record "foo.o" as the temporary file
690 to be deleted in the case of error, rather than "-ofoo.o". */
691 #ifndef SWITCHES_NEED_SPACES
692 #define SWITCHES_NEED_SPACES "o"
695 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
697 #define ENDFILE_SPEC ""
701 #define LINKER_NAME "collect2"
704 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
705 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
710 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
712 #ifndef ASM_DEBUG_SPEC
713 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
714 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
715 # define ASM_DEBUG_SPEC \
716 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
717 ? "%{!g0:%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}}" ASM_MAP \
718 : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
720 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
721 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP
723 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
724 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP
728 #ifndef ASM_DEBUG_SPEC
729 # define ASM_DEBUG_SPEC ""
732 /* Here is the spec for running the linker, after compiling all files. */
734 /* This is overridable by the target in case they need to specify the
735 -lgcc and -lc order specially, yet not require them to override all
736 of LINK_COMMAND_SPEC. */
737 #ifndef LINK_GCC_C_SEQUENCE_SPEC
738 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
741 #ifndef LINK_SSP_SPEC
742 #ifdef TARGET_LIBC_PROVIDES_SSP
743 #define LINK_SSP_SPEC "%{fstack-protector:}"
745 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
749 #ifndef LINK_PIE_SPEC
751 #define LINK_PIE_SPEC "%{pie:-pie} "
753 #define LINK_PIE_SPEC "%{pie:} "
757 #ifndef LINK_BUILDID_SPEC
758 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
759 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
764 /* -u* was put back because both BSD and SysV seem to support it. */
765 /* %{static:} simply prevents an error message if the target machine
766 doesn't handle -static. */
767 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
768 scripts which exist in user specified directories, or in standard
770 /* We pass any -flto and -fwhopr flags on to the linker, which is expected
771 to understand them. In practice, this means it had better be collect2. */
772 #ifndef LINK_COMMAND_SPEC
773 #define LINK_COMMAND_SPEC "\
774 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
776 %{fuse-linker-plugin: \
777 -plugin %(linker_plugin_file) \
778 -plugin-opt=%(lto_wrapper) \
779 -plugin-opt=-fresolution=%u.res \
780 %{static|static-libgcc:-plugin-opt=-pass-through=%(lto_libgcc)} \
781 %{static:-plugin-opt=-pass-through=-lc} \
783 %{flto} %{fwhopr*} %l " LINK_PIE_SPEC \
784 "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
785 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
786 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
787 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
788 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\
789 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
790 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
793 #ifndef LINK_LIBGCC_SPEC
794 /* Generate -L options for startfile prefix list. */
795 # define LINK_LIBGCC_SPEC "%D"
798 #ifndef STARTFILE_PREFIX_SPEC
799 # define STARTFILE_PREFIX_SPEC ""
803 # define SYSROOT_SPEC "--sysroot=%R"
806 #ifndef SYSROOT_SUFFIX_SPEC
807 # define SYSROOT_SUFFIX_SPEC ""
810 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
811 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
814 static const char *asm_debug
;
815 static const char *cpp_spec
= CPP_SPEC
;
816 static const char *cc1_spec
= CC1_SPEC
;
817 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
818 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
819 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
820 static const char *asm_spec
= ASM_SPEC
;
821 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
822 static const char *link_spec
= LINK_SPEC
;
823 static const char *lib_spec
= LIB_SPEC
;
824 static const char *mfwrap_spec
= MFWRAP_SPEC
;
825 static const char *mflib_spec
= MFLIB_SPEC
;
826 static const char *link_gomp_spec
= "";
827 static const char *libgcc_spec
= LIBGCC_SPEC
;
828 static const char *endfile_spec
= ENDFILE_SPEC
;
829 static const char *startfile_spec
= STARTFILE_SPEC
;
830 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
831 static const char *linker_name_spec
= LINKER_NAME
;
832 static const char *linker_plugin_file_spec
= "";
833 static const char *lto_wrapper_spec
= "";
834 static const char *lto_gcc_spec
= "";
835 static const char *lto_libgcc_spec
= "";
836 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
837 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
838 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
839 static const char *sysroot_spec
= SYSROOT_SPEC
;
840 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
841 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
843 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
844 There should be no need to override these in target dependent files,
845 but we need to copy them to the specs file so that newer versions
846 of the GCC driver can correctly drive older tool chains with the
847 appropriate -B options. */
849 /* When cpplib handles traditional preprocessing, get rid of this, and
850 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
851 that we default the front end language better. */
852 static const char *trad_capable_cpp
=
853 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
855 /* We don't wrap .d files in %W{} since a missing .d file, and
856 therefore no dependency entry, confuses make into thinking a .o
857 file that happens to exist is up-to-date. */
858 static const char *cpp_unique_options
=
859 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
860 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
861 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
862 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
863 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
864 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
865 %{!iplugindir*:%{fplugin*:-iplugindir=%:find-file(plugin)}}\
866 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
867 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
868 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
871 /* This contains cpp options which are common with cc1_options and are passed
872 only when preprocessing only to avoid duplication. We pass the cc1 spec
873 options to the preprocessor so that it the cc1 spec may manipulate
874 options used to set target flags. Those special target flags settings may
875 in turn cause preprocessor symbols to be defined specially. */
876 static const char *cpp_options
=
877 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
878 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
879 %{undef} %{save-temps*:-fpch-preprocess}";
881 /* This contains cpp options which are not passed when the preprocessor
882 output will be used by another program. */
883 static const char *cpp_debug_options
= "%{d*}";
885 /* NB: This is shared amongst all front-ends, except for Ada. */
886 static const char *cc1_options
=
887 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
888 %{!iplugindir*:%{fplugin*:-iplugindir=%:find-file(plugin)}}\
889 %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{a*}\
890 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
891 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
892 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
893 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
894 %{Qn:-fno-ident} %{--help:--help}\
895 %{--target-help:--target-help}\
896 %{--help=*:--help=%(VALUE)}\
897 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
898 %{fsyntax-only:-o %j} %{-param*}\
899 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
900 %{coverage:-fprofile-arcs -ftest-coverage}";
902 static const char *asm_options
=
903 "%{--target-help:%:print-asm-header()} "
905 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
906 to the assembler equivalents. */
907 "%{v} %{w:-W} %{I*} "
909 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
911 static const char *invoke_as
=
912 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
914 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
915 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
919 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
920 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
924 /* Some compilers have limits on line lengths, and the multilib_select
925 and/or multilib_matches strings can be very long, so we build them at
927 static struct obstack multilib_obstack
;
928 static const char *multilib_select
;
929 static const char *multilib_matches
;
930 static const char *multilib_defaults
;
931 static const char *multilib_exclusions
;
933 /* Check whether a particular argument is a default argument. */
935 #ifndef MULTILIB_DEFAULTS
936 #define MULTILIB_DEFAULTS { "" }
939 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
941 #ifndef DRIVER_SELF_SPECS
942 #define DRIVER_SELF_SPECS ""
945 /* Adding -fopenmp should imply pthreads. This is particularly important
946 for targets that use different start files and suchlike. */
947 #ifndef GOMP_SELF_SPECS
948 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
951 static const char *const driver_self_specs
[] = {
952 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
953 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
956 #ifndef OPTION_DEFAULT_SPECS
957 #define OPTION_DEFAULT_SPECS { "", "" }
966 static const struct default_spec
967 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
971 struct user_specs
*next
;
972 const char *filename
;
975 static struct user_specs
*user_specs_head
, *user_specs_tail
;
977 #ifndef SWITCH_TAKES_ARG
978 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
981 #ifndef WORD_SWITCH_TAKES_ARG
982 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
985 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
986 /* This defines which switches stop a full compilation. */
987 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
988 ((CHAR) == 'c' || (CHAR) == 'S' || (CHAR) == 'E')
990 #ifndef SWITCH_CURTAILS_COMPILATION
991 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
992 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
996 /* Record the mapping from file suffixes for compilation specs. */
1000 const char *suffix
; /* Use this compiler for input files
1001 whose names end in this suffix. */
1003 const char *spec
; /* To use this compiler, run this spec. */
1005 const char *cpp_spec
; /* If non-NULL, substitute this spec
1006 for `%C', rather than the usual
1008 const int combinable
; /* If nonzero, compiler can deal with
1009 multiple source files at once (IMA). */
1010 const int needs_preprocessing
; /* If nonzero, source files need to
1011 be run through a preprocessor. */
1014 /* Pointer to a vector of `struct compiler' that gives the spec for
1015 compiling a file, based on its suffix.
1016 A file that does not end in any of these suffixes will be passed
1017 unchanged to the loader and nothing else will be done to it.
1019 An entry containing two 0s is used to terminate the vector.
1021 If multiple entries match a file, the last matching one is used. */
1023 static struct compiler
*compilers
;
1025 /* Number of entries in `compilers', not counting the null terminator. */
1027 static int n_compilers
;
1029 /* The default list of file name suffixes and their compilation specs. */
1031 static const struct compiler default_compilers
[] =
1033 /* Add lists of suffixes of known languages here. If those languages
1034 were not present when we built the driver, we will hit these copies
1035 and be given a more meaningful error than "file not used since
1036 linking is not done". */
1037 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1038 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1039 {".mii", "#Objective-C++", 0, 0, 0},
1040 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1041 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1042 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1043 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1044 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1045 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1046 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1047 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1048 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1049 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1050 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1051 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1052 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1053 {".r", "#Ratfor", 0, 0, 0},
1054 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
1055 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
1056 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
1057 /* Next come the entries for C. */
1058 {".c", "@c", 0, 1, 1},
1060 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1061 external preprocessor if -save-temps is given. */
1062 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1064 %{traditional|ftraditional:\
1065 %eGNU C no longer supports -traditional without -E}\
1067 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1068 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1069 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1071 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1072 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1073 %{!fsyntax-only:%(invoke_as)}} \
1075 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1076 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i}}\
1077 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1078 cc1 %(cpp_unique_options) %(cc1_options)}}\
1079 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
1081 "%{!E:%e-E or -x required when input is from standard input}\
1082 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1083 {".h", "@c-header", 0, 0, 0},
1085 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1086 external preprocessor if -save-temps is given. */
1087 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1089 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1090 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1091 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1093 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
1094 %W{o*:--output-pch=%*}}%V}\
1095 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1096 cc1 %(cpp_unique_options) %(cc1_options)\
1097 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
1098 %W{o*:--output-pch=%*}}%V}}}}}}", 0, 0, 0},
1099 {".i", "@cpp-output", 0, 1, 0},
1101 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
1102 {".s", "@assembler", 0, 1, 0},
1104 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
1105 {".sx", "@assembler-with-cpp", 0, 1, 0},
1106 {".S", "@assembler-with-cpp", 0, 1, 0},
1107 {"@assembler-with-cpp",
1108 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1109 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1110 %{E|M|MM:%(cpp_debug_options)}\
1111 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1112 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1114 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1115 %{E|M|MM:%(cpp_debug_options)}\
1116 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1117 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1122 /* Mark end of table. */
1126 /* Number of elements in default_compilers, not counting the terminator. */
1128 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1130 /* A vector of options to give to the linker.
1131 These options are accumulated by %x,
1132 and substituted into the linker command with %X. */
1133 static int n_linker_options
;
1134 static char **linker_options
;
1136 /* A vector of options to give to the assembler.
1137 These options are accumulated by -Wa,
1138 and substituted into the assembler command with %Y. */
1139 static int n_assembler_options
;
1140 static char **assembler_options
;
1142 /* A vector of options to give to the preprocessor.
1143 These options are accumulated by -Wp,
1144 and substituted into the preprocessor command with %Z. */
1145 static int n_preprocessor_options
;
1146 static char **preprocessor_options
;
1148 /* Define how to map long options into short ones. */
1150 /* This structure describes one mapping. */
1153 /* The long option's name. */
1154 const char *const name
;
1155 /* The equivalent short option. */
1156 const char *const equivalent
;
1157 /* Argument info. A string of flag chars; NULL equals no options.
1158 a => argument required.
1159 o => argument optional.
1160 j => join argument to equivalent, making one word.
1161 * => require other text after NAME as an argument. */
1162 const char *const arg_info
;
1165 /* This is the table of mappings. Mappings are tried sequentially
1166 for each option encountered; the first one that matches, wins. */
1168 static const struct option_map option_map
[] =
1170 {"--all-warnings", "-Wall", 0},
1171 {"--ansi", "-ansi", 0},
1172 {"--assemble", "-S", 0},
1173 {"--assert", "-A", "a"},
1174 {"--classpath", "-fclasspath=", "aj"},
1175 {"--bootclasspath", "-fbootclasspath=", "aj"},
1176 {"--CLASSPATH", "-fclasspath=", "aj"},
1177 {"--combine", "-combine", 0},
1178 {"--comments", "-C", 0},
1179 {"--comments-in-macros", "-CC", 0},
1180 {"--compile", "-c", 0},
1181 {"--debug", "-g", "oj"},
1182 {"--define-macro", "-D", "aj"},
1183 {"--dependencies", "-M", 0},
1184 {"--dump", "-d", "a"},
1185 {"--dumpbase", "-dumpbase", "a"},
1186 {"--dumpdir", "-dumpdir", "a"},
1187 {"--encoding", "-fencoding=", "aj"},
1188 {"--entry", "-e", 0},
1189 {"--extra-warnings", "-W", 0},
1190 {"--extdirs", "-fextdirs=", "aj"},
1191 {"--for-assembler", "-Wa", "a"},
1192 {"--for-linker", "-Xlinker", "a"},
1193 {"--force-link", "-u", "a"},
1194 {"--coverage", "-coverage", 0},
1195 {"--imacros", "-imacros", "a"},
1196 {"--include", "-include", "a"},
1197 {"--include-barrier", "-I-", 0},
1198 {"--include-directory", "-I", "aj"},
1199 {"--include-directory-after", "-idirafter", "a"},
1200 {"--include-prefix", "-iprefix", "a"},
1201 {"--include-with-prefix", "-iwithprefix", "a"},
1202 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1203 {"--include-with-prefix-after", "-iwithprefix", "a"},
1204 {"--language", "-x", "a"},
1205 {"--library-directory", "-L", "a"},
1206 {"--machine", "-m", "aj"},
1207 {"--machine-", "-m", "*j"},
1208 {"--no-canonical-prefixes", "-no-canonical-prefixes", 0},
1209 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1210 {"--no-line-commands", "-P", 0},
1211 {"--no-precompiled-includes", "-noprecomp", 0},
1212 {"--no-standard-includes", "-nostdinc", 0},
1213 {"--no-standard-libraries", "-nostdlib", 0},
1214 {"--no-warnings", "-w", 0},
1215 {"--optimize", "-O", "oj"},
1216 {"--output", "-o", "a"},
1217 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1218 {"--param", "--param", "a"},
1219 {"--pass-exit-codes", "-pass-exit-codes", 0},
1220 {"--pedantic", "-pedantic", 0},
1221 {"--pedantic-errors", "-pedantic-errors", 0},
1222 {"--pie", "-pie", 0},
1223 {"--pipe", "-pipe", 0},
1224 {"--prefix", "-B", "a"},
1225 {"--preprocess", "-E", 0},
1226 {"--print-search-dirs", "-print-search-dirs", 0},
1227 {"--print-file-name", "-print-file-name=", "aj"},
1228 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1229 {"--print-missing-file-dependencies", "-MG", 0},
1230 {"--print-multi-lib", "-print-multi-lib", 0},
1231 {"--print-multi-directory", "-print-multi-directory", 0},
1232 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1233 {"--print-prog-name", "-print-prog-name=", "aj"},
1234 {"--print-sysroot", "-print-sysroot", 0},
1235 {"--print-sysroot-headers-suffix", "-print-sysroot-headers-suffix", 0},
1236 {"--profile", "-p", 0},
1237 {"--profile-blocks", "-a", 0},
1238 {"--quiet", "-q", 0},
1239 {"--resource", "-fcompile-resource=", "aj"},
1240 {"--save-temps", "-save-temps", 0},
1241 {"--shared", "-shared", 0},
1242 {"--silent", "-q", 0},
1243 {"--specs", "-specs=", "aj"},
1244 {"--static", "-static", 0},
1245 {"--std", "-std=", "aj"},
1246 {"--symbolic", "-symbolic", 0},
1247 {"--sysroot", "--sysroot=", "aj"},
1248 {"--time", "-time", 0},
1249 {"--trace-includes", "-H", 0},
1250 {"--traditional", "-traditional", 0},
1251 {"--traditional-cpp", "-traditional-cpp", 0},
1252 {"--trigraphs", "-trigraphs", 0},
1253 {"--undefine-macro", "-U", "aj"},
1254 {"--user-dependencies", "-MM", 0},
1255 {"--verbose", "-v", 0},
1256 {"--warn-", "-W", "*j"},
1257 {"--write-dependencies", "-MD", 0},
1258 {"--write-user-dependencies", "-MMD", 0},
1263 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1264 static const struct {
1265 const char *const option_found
;
1266 const char *const replacements
;
1267 } target_option_translations
[] =
1269 TARGET_OPTION_TRANSLATE_TABLE
,
1274 /* Translate the options described by *ARGCP and *ARGVP.
1275 Make a new vector and store it back in *ARGVP,
1276 and store its length in *ARGCP. */
1279 translate_options (int *argcp
, const char *const **argvp
)
1283 const char *const *argv
= *argvp
;
1284 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1285 const char **newv
= XNEWVAR (const char *, newvsize
);
1289 newv
[newindex
++] = argv
[i
++];
1293 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1297 target_option_translations
[tott_idx
].option_found
;
1300 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1307 for (sp
= target_option_translations
[tott_idx
].replacements
;
1314 newvsize
+= spaces
* sizeof (const char *);
1315 newv
= XRESIZEVAR (const char *, newv
, newvsize
);
1317 sp
= target_option_translations
[tott_idx
].replacements
;
1326 newv
[newindex
++] = np
;
1327 while (*np
!= ' ' && *np
)
1338 if (target_option_translations
[tott_idx
].option_found
)
1342 /* Translate -- options. */
1343 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1346 /* Find a mapping that applies to this option. */
1347 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1349 size_t optlen
= strlen (option_map
[j
].name
);
1350 size_t arglen
= strlen (argv
[i
]);
1351 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1352 const char *arginfo
= option_map
[j
].arg_info
;
1357 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1359 const char *arg
= 0;
1361 if (arglen
< optlen
)
1364 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1365 if (strlen (option_map
[k
].name
) >= arglen
1366 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1368 error ("ambiguous abbreviation %s", argv
[i
]);
1372 if (k
!= ARRAY_SIZE (option_map
))
1376 if (arglen
> optlen
)
1378 /* If the option has an argument, accept that. */
1379 if (argv
[i
][optlen
] == '=')
1380 arg
= argv
[i
] + optlen
+ 1;
1382 /* If this mapping requires extra text at end of name,
1383 accept that as "argument". */
1384 else if (strchr (arginfo
, '*') != 0)
1385 arg
= argv
[i
] + optlen
;
1387 /* Otherwise, extra text at end means mismatch.
1388 Try other mappings. */
1393 else if (strchr (arginfo
, '*') != 0)
1395 error ("incomplete '%s' option", option_map
[j
].name
);
1399 /* Handle arguments. */
1400 if (strchr (arginfo
, 'a') != 0)
1406 error ("missing argument to '%s' option",
1407 option_map
[j
].name
);
1414 else if (strchr (arginfo
, '*') != 0)
1416 else if (strchr (arginfo
, 'o') == 0)
1419 error ("extraneous argument to '%s' option",
1420 option_map
[j
].name
);
1424 /* Store the translation as one argv elt or as two. */
1425 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1426 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1430 newv
[newindex
++] = option_map
[j
].equivalent
;
1431 newv
[newindex
++] = arg
;
1434 newv
[newindex
++] = option_map
[j
].equivalent
;
1442 /* Handle old-fashioned options--just copy them through,
1443 with their arguments. */
1444 else if (argv
[i
][0] == '-')
1446 const char *p
= argv
[i
] + 1;
1450 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1451 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1452 else if (WORD_SWITCH_TAKES_ARG (p
))
1453 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1454 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1457 else if (! strcmp (p
, "Xlinker"))
1459 else if (! strcmp (p
, "Xpreprocessor"))
1461 else if (! strcmp (p
, "Xassembler"))
1464 /* Watch out for an option at the end of the command line that
1465 is missing arguments, and avoid skipping past the end of the
1467 if (nskip
+ i
> argc
)
1472 newv
[newindex
++] = argv
[i
++];
1477 /* Ordinary operands, or +e options. */
1478 newv
[newindex
++] = argv
[i
++];
1488 skip_whitespace (char *p
)
1492 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1493 be considered whitespace. */
1494 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1496 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1510 /* Structures to keep track of prefixes to try when looking for files. */
1514 const char *prefix
; /* String to prepend to the path. */
1515 struct prefix_list
*next
; /* Next in linked list. */
1516 int require_machine_suffix
; /* Don't use without machine_suffix. */
1517 /* 2 means try both machine_suffix and just_machine_suffix. */
1518 int priority
; /* Sort key - priority within list. */
1519 int os_multilib
; /* 1 if OS multilib scheme should be used,
1520 0 for GCC multilib scheme. */
1525 struct prefix_list
*plist
; /* List of prefixes to try */
1526 int max_len
; /* Max length of a prefix in PLIST */
1527 const char *name
; /* Name of this list (used in config stuff) */
1530 /* List of prefixes to try when looking for executables. */
1532 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1534 /* List of prefixes to try when looking for startup (crt0) files. */
1536 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1538 /* List of prefixes to try when looking for include files. */
1540 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1542 /* Suffix to attach to directories searched for commands.
1543 This looks like `MACHINE/VERSION/'. */
1545 static const char *machine_suffix
= 0;
1547 /* Suffix to attach to directories searched for commands.
1548 This is just `MACHINE/'. */
1550 static const char *just_machine_suffix
= 0;
1552 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1554 static const char *gcc_exec_prefix
;
1556 /* Adjusted value of standard_libexec_prefix. */
1558 static const char *gcc_libexec_prefix
;
1560 /* Default prefixes to attach to command names. */
1562 #ifndef STANDARD_STARTFILE_PREFIX_1
1563 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1565 #ifndef STANDARD_STARTFILE_PREFIX_2
1566 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1569 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1570 #undef MD_EXEC_PREFIX
1571 #undef MD_STARTFILE_PREFIX
1572 #undef MD_STARTFILE_PREFIX_1
1575 /* If no prefixes defined, use the null string, which will disable them. */
1576 #ifndef MD_EXEC_PREFIX
1577 #define MD_EXEC_PREFIX ""
1579 #ifndef MD_STARTFILE_PREFIX
1580 #define MD_STARTFILE_PREFIX ""
1582 #ifndef MD_STARTFILE_PREFIX_1
1583 #define MD_STARTFILE_PREFIX_1 ""
1586 /* These directories are locations set at configure-time based on the
1587 --prefix option provided to configure. Their initializers are
1588 defined in Makefile.in. These paths are not *directly* used when
1589 gcc_exec_prefix is set because, in that case, we know where the
1590 compiler has been installed, and use paths relative to that
1591 location instead. */
1592 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1593 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1594 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1595 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1597 /* For native compilers, these are well-known paths containing
1598 components that may be provided by the system. For cross
1599 compilers, these paths are not used. */
1600 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1601 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1602 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1603 static const char *const standard_startfile_prefix_1
1604 = STANDARD_STARTFILE_PREFIX_1
;
1605 static const char *const standard_startfile_prefix_2
1606 = STANDARD_STARTFILE_PREFIX_2
;
1608 /* A relative path to be used in finding the location of tools
1609 relative to the driver. */
1610 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1612 /* Subdirectory to use for locating libraries. Set by
1613 set_multilib_dir based on the compilation options. */
1615 static const char *multilib_dir
;
1617 /* Subdirectory to use for locating libraries in OS conventions. Set by
1618 set_multilib_dir based on the compilation options. */
1620 static const char *multilib_os_dir
;
1622 /* Structure to keep track of the specs that have been defined so far.
1623 These are accessed using %(specname) or %[specname] in a compiler
1628 /* The following 2 fields must be first */
1629 /* to allow EXTRA_SPECS to be initialized */
1630 const char *name
; /* name of the spec. */
1631 const char *ptr
; /* available ptr if no static pointer */
1633 /* The following fields are not initialized */
1634 /* by EXTRA_SPECS */
1635 const char **ptr_spec
; /* pointer to the spec itself. */
1636 struct spec_list
*next
; /* Next spec in linked list. */
1637 int name_len
; /* length of the name */
1638 int alloc_p
; /* whether string was allocated */
1641 #define INIT_STATIC_SPEC(NAME,PTR) \
1642 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1644 /* List of statically defined specs. */
1645 static struct spec_list static_specs
[] =
1647 INIT_STATIC_SPEC ("asm", &asm_spec
),
1648 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1649 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1650 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1651 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1652 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1653 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1654 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1655 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1656 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1657 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1658 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1659 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1660 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1661 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1662 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1663 INIT_STATIC_SPEC ("link", &link_spec
),
1664 INIT_STATIC_SPEC ("lib", &lib_spec
),
1665 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1666 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1667 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1668 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1669 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1670 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1671 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1672 INIT_STATIC_SPEC ("version", &compiler_version
),
1673 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1674 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1675 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1676 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1677 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1678 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1679 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1680 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1681 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1682 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1683 INIT_STATIC_SPEC ("lto_libgcc", <o_libgcc_spec
),
1684 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1685 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1686 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1687 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1688 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1689 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1690 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1691 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1694 #ifdef EXTRA_SPECS /* additional specs needed */
1695 /* Structure to keep track of just the first two args of a spec_list.
1696 That is all that the EXTRA_SPECS macro gives us. */
1699 const char *const name
;
1700 const char *const ptr
;
1703 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1704 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1707 /* List of dynamically allocates specs that have been defined so far. */
1709 static struct spec_list
*specs
= (struct spec_list
*) 0;
1711 /* List of static spec functions. */
1713 static const struct spec_function static_spec_functions
[] =
1715 { "getenv", getenv_spec_function
},
1716 { "if-exists", if_exists_spec_function
},
1717 { "if-exists-else", if_exists_else_spec_function
},
1718 { "replace-outfile", replace_outfile_spec_function
},
1719 { "version-compare", version_compare_spec_function
},
1720 { "include", include_spec_function
},
1721 { "find-file", find_file_spec_function
},
1722 { "print-asm-header", print_asm_header_spec_function
},
1723 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1724 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1725 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1726 #ifdef EXTRA_SPEC_FUNCTIONS
1727 EXTRA_SPEC_FUNCTIONS
1732 static int processing_spec_function
;
1734 /* Add appropriate libgcc specs to OBSTACK, taking into account
1735 various permutations of -shared-libgcc, -shared, and such. */
1737 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1739 #ifndef USE_LD_AS_NEEDED
1740 #define USE_LD_AS_NEEDED 0
1744 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1745 const char *static_name
, const char *eh_name
)
1749 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1750 "%{!static:%{!static-libgcc:"
1751 #if USE_LD_AS_NEEDED
1752 "%{!shared-libgcc:",
1753 static_name
, " --as-needed ", shared_name
, " --no-as-needed"
1756 shared_name
, "%{!shared: ", static_name
, "}"
1760 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1761 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1765 "%{shared-libgcc:", shared_name
, "}"
1766 "%{!shared-libgcc:", static_name
, "}"
1769 "%{shared:", shared_name
, "}"
1774 obstack_grow (obstack
, buf
, strlen (buf
));
1777 #endif /* ENABLE_SHARED_LIBGCC */
1779 /* Initialize the specs lookup routines. */
1784 struct spec_list
*next
= (struct spec_list
*) 0;
1785 struct spec_list
*sl
= (struct spec_list
*) 0;
1789 return; /* Already initialized. */
1792 fnotice (stderr
, "Using built-in specs.\n");
1795 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1797 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1799 sl
= &extra_specs
[i
];
1800 sl
->name
= extra_specs_1
[i
].name
;
1801 sl
->ptr
= extra_specs_1
[i
].ptr
;
1803 sl
->name_len
= strlen (sl
->name
);
1804 sl
->ptr_spec
= &sl
->ptr
;
1809 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1811 sl
= &static_specs
[i
];
1816 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1817 /* ??? If neither -shared-libgcc nor --static-libgcc was
1818 seen, then we should be making an educated guess. Some proposed
1819 heuristics for ELF include:
1821 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1822 program will be doing dynamic loading, which will likely
1823 need the shared libgcc.
1825 (2) If "-ldl", then it's also a fair bet that we're doing
1828 (3) For each ET_DYN we're linking against (either through -lfoo
1829 or /some/path/foo.so), check to see whether it or one of
1830 its dependencies depends on a shared libgcc.
1834 If the runtime is fixed to look for program headers instead
1835 of calling __register_frame_info at all, for each object,
1836 use the shared libgcc if any EH symbol referenced.
1838 If crtstuff is fixed to not invoke __register_frame_info
1839 automatically, for each object, use the shared libgcc if
1840 any non-empty unwind section found.
1842 Doing any of this probably requires invoking an external program to
1843 do the actual object file scanning. */
1845 const char *p
= libgcc_spec
;
1848 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1849 when given the proper command line arguments. */
1852 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1854 init_gcc_specs (&obstack
,
1856 #ifdef USE_LIBUNWIND_EXCEPTIONS
1862 #ifdef USE_LIBUNWIND_EXCEPTIONS
1863 # ifdef HAVE_LD_STATIC_DYNAMIC
1864 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1874 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1876 /* Ug. We don't know shared library extensions. Hope that
1877 systems that use this form don't do shared libraries. */
1878 init_gcc_specs (&obstack
,
1882 #ifdef USE_LIBUNWIND_EXCEPTIONS
1891 obstack_1grow (&obstack
, *p
);
1892 in_sep
= (*p
== ' ');
1897 obstack_1grow (&obstack
, '\0');
1898 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1901 #ifdef USE_AS_TRADITIONAL_FORMAT
1902 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1904 static const char tf
[] = "--traditional-format ";
1905 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1906 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1907 asm_spec
= XOBFINISH (&obstack
, const char *);
1911 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC
1912 # ifdef LINK_BUILDID_SPEC
1913 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1914 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof(LINK_BUILDID_SPEC
) - 1);
1916 # ifdef LINK_EH_SPEC
1917 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1918 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1920 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1921 link_spec
= XOBFINISH (&obstack
, const char *);
1927 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1928 removed; If the spec starts with a + then SPEC is added to the end of the
1932 set_spec (const char *name
, const char *spec
)
1934 struct spec_list
*sl
;
1935 const char *old_spec
;
1936 int name_len
= strlen (name
);
1939 /* If this is the first call, initialize the statically allocated specs. */
1942 struct spec_list
*next
= (struct spec_list
*) 0;
1943 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1945 sl
= &static_specs
[i
];
1952 /* See if the spec already exists. */
1953 for (sl
= specs
; sl
; sl
= sl
->next
)
1954 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1959 /* Not found - make it. */
1960 sl
= XNEW (struct spec_list
);
1961 sl
->name
= xstrdup (name
);
1962 sl
->name_len
= name_len
;
1963 sl
->ptr_spec
= &sl
->ptr
;
1965 *(sl
->ptr_spec
) = "";
1970 old_spec
= *(sl
->ptr_spec
);
1971 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1972 ? concat (old_spec
, spec
+ 1, NULL
)
1977 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1980 /* Free the old spec. */
1981 if (old_spec
&& sl
->alloc_p
)
1982 free (CONST_CAST(char *, old_spec
));
1987 /* Accumulate a command (program name and args), and run it. */
1989 /* Vector of pointers to arguments in the current line of specifications. */
1991 static const char **argbuf
;
1993 /* Number of elements allocated in argbuf. */
1995 static int argbuf_length
;
1997 /* Number of elements in argbuf currently in use (containing args). */
1999 static int argbuf_index
;
2001 /* Position in the argbuf array containing the name of the output file
2002 (the value associated with the "-o" flag). */
2004 static int have_o_argbuf_index
= 0;
2006 /* Were the options -c, -S or -E passed. */
2007 static int have_c
= 0;
2009 /* Was the option -o passed. */
2010 static int have_o
= 0;
2012 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
2013 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
2016 static struct temp_name
{
2017 const char *suffix
; /* suffix associated with the code. */
2018 int length
; /* strlen (suffix). */
2019 int unique
; /* Indicates whether %g or %u/%U was used. */
2020 const char *filename
; /* associated filename. */
2021 int filename_length
; /* strlen (filename). */
2022 struct temp_name
*next
;
2025 /* Number of commands executed so far. */
2027 static int execution_count
;
2029 /* Number of commands that exited with a signal. */
2031 static int signal_count
;
2033 /* Allocate the argument vector. */
2039 argbuf
= XNEWVEC (const char *, argbuf_length
);
2042 /* Clear out the vector of arguments (after a command is executed). */
2050 /* Add one argument to the vector at the end.
2051 This is done when a space is seen or at the end of the line.
2052 If DELETE_ALWAYS is nonzero, the arg is a filename
2053 and the file should be deleted eventually.
2054 If DELETE_FAILURE is nonzero, the arg is a filename
2055 and the file should be deleted if this compilation fails. */
2058 store_arg (const char *arg
, int delete_always
, int delete_failure
)
2060 if (argbuf_index
+ 1 == argbuf_length
)
2061 argbuf
= XRESIZEVEC (const char *, argbuf
, (argbuf_length
*= 2));
2063 argbuf
[argbuf_index
++] = arg
;
2064 argbuf
[argbuf_index
] = 0;
2066 if (strcmp (arg
, "-o") == 0)
2067 have_o_argbuf_index
= argbuf_index
;
2068 if (delete_always
|| delete_failure
)
2071 /* If the temporary file we should delete is specified as
2072 part of a joined argument extract the filename. */
2074 && (p
= strrchr (arg
, '=')))
2076 record_temp_file (arg
, delete_always
, delete_failure
);
2080 /* Load specs from a file name named FILENAME, replacing occurrences of
2081 various different types of line-endings, \r\n, \n\r and just \r, with
2085 load_specs (const char *filename
)
2089 struct stat statbuf
;
2096 fnotice (stderr
, "Reading specs from %s\n", filename
);
2098 /* Open and stat the file. */
2099 desc
= open (filename
, O_RDONLY
, 0);
2101 pfatal_with_name (filename
);
2102 if (stat (filename
, &statbuf
) < 0)
2103 pfatal_with_name (filename
);
2105 /* Read contents of file into BUFFER. */
2106 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
2107 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
2109 pfatal_with_name (filename
);
2110 buffer
[readlen
] = 0;
2113 specs
= XNEWVEC (char, readlen
+ 1);
2115 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2121 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2123 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2137 /* Read compilation specs from a file named FILENAME,
2138 replacing the default ones.
2140 A suffix which starts with `*' is a definition for
2141 one of the machine-specific sub-specs. The "suffix" should be
2142 *asm, *cc1, *cpp, *link, *startfile, etc.
2143 The corresponding spec is stored in asm_spec, etc.,
2144 rather than in the `compilers' vector.
2146 Anything invalid in the file is a fatal error. */
2149 read_specs (const char *filename
, int main_p
)
2154 buffer
= load_specs (filename
);
2156 /* Scan BUFFER for specs, putting them in the vector. */
2162 char *in
, *out
, *p1
, *p2
, *p3
;
2164 /* Advance P in BUFFER to the next nonblank nocomment line. */
2165 p
= skip_whitespace (p
);
2169 /* Is this a special command that starts with '%'? */
2170 /* Don't allow this for the main specs file, since it would
2171 encourage people to overwrite it. */
2172 if (*p
== '%' && !main_p
)
2175 while (*p
&& *p
!= '\n')
2181 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2182 && (p1
[sizeof "%include" - 1] == ' '
2183 || p1
[sizeof "%include" - 1] == '\t'))
2187 p1
+= sizeof ("%include");
2188 while (*p1
== ' ' || *p1
== '\t')
2191 if (*p1
++ != '<' || p
[-2] != '>')
2192 fatal_error ("specs %%include syntax malformed after "
2194 (long) (p1
- buffer
+ 1));
2197 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2198 read_specs (new_filename
? new_filename
: p1
, FALSE
);
2201 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2202 && (p1
[sizeof "%include_noerr" - 1] == ' '
2203 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2207 p1
+= sizeof "%include_noerr";
2208 while (*p1
== ' ' || *p1
== '\t')
2211 if (*p1
++ != '<' || p
[-2] != '>')
2212 fatal_error ("specs %%include syntax malformed after "
2214 (long) (p1
- buffer
+ 1));
2217 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2219 read_specs (new_filename
, FALSE
);
2220 else if (verbose_flag
)
2221 fnotice (stderr
, "could not find specs file %s\n", p1
);
2224 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2225 && (p1
[sizeof "%rename" - 1] == ' '
2226 || p1
[sizeof "%rename" - 1] == '\t'))
2229 struct spec_list
*sl
;
2230 struct spec_list
*newsl
;
2232 /* Get original name. */
2233 p1
+= sizeof "%rename";
2234 while (*p1
== ' ' || *p1
== '\t')
2237 if (! ISALPHA ((unsigned char) *p1
))
2238 fatal_error ("specs %%rename syntax malformed after "
2240 (long) (p1
- buffer
));
2243 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2246 if (*p2
!= ' ' && *p2
!= '\t')
2247 fatal_error ("specs %%rename syntax malformed after "
2249 (long) (p2
- buffer
));
2253 while (*p2
== ' ' || *p2
== '\t')
2256 if (! ISALPHA ((unsigned char) *p2
))
2257 fatal_error ("specs %%rename syntax malformed after "
2259 (long) (p2
- buffer
));
2261 /* Get new spec name. */
2263 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2267 fatal_error ("specs %%rename syntax malformed after "
2269 (long) (p3
- buffer
));
2272 for (sl
= specs
; sl
; sl
= sl
->next
)
2273 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2277 fatal_error ("specs %s spec was not found to be renamed", p1
);
2279 if (strcmp (p1
, p2
) == 0)
2282 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2283 if (strcmp (newsl
->name
, p2
) == 0)
2284 fatal_error ("%s: attempt to rename spec '%s' to "
2285 "already defined spec '%s'",
2290 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
2292 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
2296 set_spec (p2
, *(sl
->ptr_spec
));
2298 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2300 *(sl
->ptr_spec
) = "";
2305 fatal_error ("specs unknown %% command after %ld characters",
2306 (long) (p1
- buffer
));
2309 /* Find the colon that should end the suffix. */
2311 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2314 /* The colon shouldn't be missing. */
2316 fatal_error ("specs file malformed after %ld characters",
2317 (long) (p1
- buffer
));
2319 /* Skip back over trailing whitespace. */
2321 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2324 /* Copy the suffix to a string. */
2325 suffix
= save_string (p
, p2
- p
);
2326 /* Find the next line. */
2327 p
= skip_whitespace (p1
+ 1);
2329 fatal_error ("specs file malformed after %ld characters",
2330 (long) (p
- buffer
));
2333 /* Find next blank line or end of string. */
2334 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2337 /* Specs end at the blank line and do not include the newline. */
2338 spec
= save_string (p
, p1
- p
);
2341 /* Delete backslash-newline sequences from the spec. */
2346 if (in
[0] == '\\' && in
[1] == '\n')
2348 else if (in
[0] == '#')
2349 while (*in
&& *in
!= '\n')
2357 if (suffix
[0] == '*')
2359 if (! strcmp (suffix
, "*link_command"))
2360 link_command_spec
= spec
;
2362 set_spec (suffix
+ 1, spec
);
2366 /* Add this pair to the vector. */
2368 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2370 compilers
[n_compilers
].suffix
= suffix
;
2371 compilers
[n_compilers
].spec
= spec
;
2373 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2377 link_command_spec
= spec
;
2380 if (link_command_spec
== 0)
2381 fatal_error ("spec file has no spec for linking");
2384 /* Record the names of temporary files we tell compilers to write,
2385 and delete them at the end of the run. */
2387 /* This is the common prefix we use to make temp file names.
2388 It is chosen once for each run of this program.
2389 It is substituted into a spec by %g or %j.
2390 Thus, all temp file names contain this prefix.
2391 In practice, all temp file names start with this prefix.
2393 This prefix comes from the envvar TMPDIR if it is defined;
2394 otherwise, from the P_tmpdir macro if that is defined;
2395 otherwise, in /usr/tmp or /tmp;
2396 or finally the current directory if all else fails. */
2398 static const char *temp_filename
;
2400 /* Length of the prefix. */
2402 static int temp_filename_length
;
2404 /* Define the list of temporary files to delete. */
2409 struct temp_file
*next
;
2412 /* Queue of files to delete on success or failure of compilation. */
2413 static struct temp_file
*always_delete_queue
;
2414 /* Queue of files to delete on failure of compilation. */
2415 static struct temp_file
*failure_delete_queue
;
2417 /* Record FILENAME as a file to be deleted automatically.
2418 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2419 otherwise delete it in any case.
2420 FAIL_DELETE nonzero means delete it if a compilation step fails;
2421 otherwise delete it in any case. */
2424 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2426 char *const name
= xstrdup (filename
);
2430 struct temp_file
*temp
;
2431 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2432 if (! strcmp (name
, temp
->name
))
2435 temp
= XNEW (struct temp_file
);
2436 temp
->next
= always_delete_queue
;
2438 always_delete_queue
= temp
;
2445 struct temp_file
*temp
;
2446 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2447 if (! strcmp (name
, temp
->name
))
2450 temp
= XNEW (struct temp_file
);
2451 temp
->next
= failure_delete_queue
;
2453 failure_delete_queue
= temp
;
2459 /* Delete all the temporary files whose names we previously recorded. */
2461 #ifndef DELETE_IF_ORDINARY
2462 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2465 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2466 if (unlink (NAME) < 0) \
2468 perror_with_name (NAME); \
2473 delete_if_ordinary (const char *name
)
2479 printf ("Delete %s? (y or n) ", name
);
2483 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2486 if (i
== 'y' || i
== 'Y')
2488 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2492 delete_temp_files (void)
2494 struct temp_file
*temp
;
2496 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2497 delete_if_ordinary (temp
->name
);
2498 always_delete_queue
= 0;
2501 /* Delete all the files to be deleted on error. */
2504 delete_failure_queue (void)
2506 struct temp_file
*temp
;
2508 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2509 delete_if_ordinary (temp
->name
);
2513 clear_failure_queue (void)
2515 failure_delete_queue
= 0;
2518 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2520 If DO_MULTI is true iterate over the paths twice, first with multilib
2521 suffix then without, otherwise iterate over the paths once without
2522 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2523 to avoid visiting the same path twice, but we could do better. For
2524 instance, /usr/lib/../lib is considered different from /usr/lib.
2525 At least EXTRA_SPACE chars past the end of the path passed to
2526 CALLBACK are available for use by the callback.
2527 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2529 Returns the value returned by CALLBACK. */
2532 for_each_path (const struct path_prefix
*paths
,
2535 void *(*callback
) (char *, void *),
2536 void *callback_info
)
2538 struct prefix_list
*pl
;
2539 const char *multi_dir
= NULL
;
2540 const char *multi_os_dir
= NULL
;
2541 const char *multi_suffix
;
2542 const char *just_multi_suffix
;
2545 bool skip_multi_dir
= false;
2546 bool skip_multi_os_dir
= false;
2548 multi_suffix
= machine_suffix
;
2549 just_multi_suffix
= just_machine_suffix
;
2550 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2552 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2553 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2554 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2556 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2557 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2561 size_t multi_dir_len
= 0;
2562 size_t multi_os_dir_len
= 0;
2564 size_t just_suffix_len
;
2568 multi_dir_len
= strlen (multi_dir
);
2570 multi_os_dir_len
= strlen (multi_os_dir
);
2571 suffix_len
= strlen (multi_suffix
);
2572 just_suffix_len
= strlen (just_multi_suffix
);
2576 len
= paths
->max_len
+ extra_space
+ 1;
2577 if (suffix_len
> multi_os_dir_len
)
2580 len
+= multi_os_dir_len
;
2581 path
= XNEWVEC (char, len
);
2584 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2586 len
= strlen (pl
->prefix
);
2587 memcpy (path
, pl
->prefix
, len
);
2589 /* Look first in MACHINE/VERSION subdirectory. */
2590 if (!skip_multi_dir
)
2592 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2593 ret
= callback (path
, callback_info
);
2598 /* Some paths are tried with just the machine (ie. target)
2599 subdir. This is used for finding as, ld, etc. */
2601 && pl
->require_machine_suffix
== 2)
2603 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2604 ret
= callback (path
, callback_info
);
2609 /* Now try the base path. */
2610 if (!pl
->require_machine_suffix
2611 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2613 const char *this_multi
;
2614 size_t this_multi_len
;
2616 if (pl
->os_multilib
)
2618 this_multi
= multi_os_dir
;
2619 this_multi_len
= multi_os_dir_len
;
2623 this_multi
= multi_dir
;
2624 this_multi_len
= multi_dir_len
;
2628 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2632 ret
= callback (path
, callback_info
);
2640 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2643 /* Run through the paths again, this time without multilibs.
2644 Don't repeat any we have already seen. */
2647 free (CONST_CAST (char *, multi_dir
));
2649 free (CONST_CAST (char *, multi_suffix
));
2650 multi_suffix
= machine_suffix
;
2651 free (CONST_CAST (char *, just_multi_suffix
));
2652 just_multi_suffix
= just_machine_suffix
;
2655 skip_multi_dir
= true;
2658 free (CONST_CAST (char *, multi_os_dir
));
2659 multi_os_dir
= NULL
;
2662 skip_multi_os_dir
= true;
2667 free (CONST_CAST (char *, multi_dir
));
2668 free (CONST_CAST (char *, multi_suffix
));
2669 free (CONST_CAST (char *, just_multi_suffix
));
2672 free (CONST_CAST (char *, multi_os_dir
));
2678 /* Callback for build_search_list. Adds path to obstack being built. */
2680 struct add_to_obstack_info
{
2687 add_to_obstack (char *path
, void *data
)
2689 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2691 if (info
->check_dir
&& !is_directory (path
, false))
2694 if (!info
->first_time
)
2695 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2697 obstack_grow (info
->ob
, path
, strlen (path
));
2699 info
->first_time
= false;
2703 /* Add or change the value of an environment variable, outputting the
2704 change to standard error if in verbose mode. */
2706 xputenv (const char *string
)
2709 fnotice (stderr
, "%s\n", string
);
2710 putenv (CONST_CAST (char *, string
));
2713 /* Build a list of search directories from PATHS.
2714 PREFIX is a string to prepend to the list.
2715 If CHECK_DIR_P is true we ensure the directory exists.
2716 If DO_MULTI is true, multilib paths are output first, then
2718 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2719 It is also used by the --print-search-dirs flag. */
2722 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2723 bool check_dir
, bool do_multi
)
2725 struct add_to_obstack_info info
;
2727 info
.ob
= &collect_obstack
;
2728 info
.check_dir
= check_dir
;
2729 info
.first_time
= true;
2731 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2732 obstack_1grow (&collect_obstack
, '=');
2734 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2736 obstack_1grow (&collect_obstack
, '\0');
2737 return XOBFINISH (&collect_obstack
, char *);
2740 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2744 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2747 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2750 /* Check whether NAME can be accessed in MODE. This is like access,
2751 except that it never considers directories to be executable. */
2754 access_check (const char *name
, int mode
)
2760 if (stat (name
, &st
) < 0
2761 || S_ISDIR (st
.st_mode
))
2765 return access (name
, mode
);
2768 /* Callback for find_a_file. Appends the file name to the directory
2769 path. If the resulting file exists in the right mode, return the
2770 full pathname to the file. */
2772 struct file_at_path_info
{
2781 file_at_path (char *path
, void *data
)
2783 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2784 size_t len
= strlen (path
);
2786 memcpy (path
+ len
, info
->name
, info
->name_len
);
2787 len
+= info
->name_len
;
2789 /* Some systems have a suffix for executable files.
2790 So try appending that first. */
2791 if (info
->suffix_len
)
2793 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2794 if (access_check (path
, info
->mode
) == 0)
2799 if (access_check (path
, info
->mode
) == 0)
2805 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2806 access to check permissions. If DO_MULTI is true, search multilib
2807 paths then non-multilib paths, otherwise do not search multilib paths.
2808 Return 0 if not found, otherwise return its name, allocated with malloc. */
2811 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2814 struct file_at_path_info info
;
2816 #ifdef DEFAULT_ASSEMBLER
2817 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2818 return xstrdup (DEFAULT_ASSEMBLER
);
2821 #ifdef DEFAULT_LINKER
2822 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2823 return xstrdup (DEFAULT_LINKER
);
2826 /* Determine the filename to execute (special case for absolute paths). */
2828 if (IS_ABSOLUTE_PATH (name
))
2830 if (access (name
, mode
) == 0)
2831 return xstrdup (name
);
2837 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2838 info
.name_len
= strlen (info
.name
);
2839 info
.suffix_len
= strlen (info
.suffix
);
2842 return (char*) for_each_path (pprefix
, do_multi
,
2843 info
.name_len
+ info
.suffix_len
,
2844 file_at_path
, &info
);
2847 /* Ranking of prefixes in the sort list. -B prefixes are put before
2850 enum path_prefix_priority
2852 PREFIX_PRIORITY_B_OPT
,
2853 PREFIX_PRIORITY_LAST
2856 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2857 order according to PRIORITY. Within each PRIORITY, new entries are
2860 If WARN is nonzero, we will warn if no file is found
2861 through this prefix. WARN should point to an int
2862 which will be set to 1 if this entry is used.
2864 COMPONENT is the value to be passed to update_path.
2866 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2867 the complete value of machine_suffix.
2868 2 means try both machine_suffix and just_machine_suffix. */
2871 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2872 const char *component
, /* enum prefix_priority */ int priority
,
2873 int require_machine_suffix
, int os_multilib
)
2875 struct prefix_list
*pl
, **prev
;
2878 for (prev
= &pprefix
->plist
;
2879 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2880 prev
= &(*prev
)->next
)
2883 /* Keep track of the longest prefix. */
2885 prefix
= update_path (prefix
, component
);
2886 len
= strlen (prefix
);
2887 if (len
> pprefix
->max_len
)
2888 pprefix
->max_len
= len
;
2890 pl
= XNEW (struct prefix_list
);
2891 pl
->prefix
= prefix
;
2892 pl
->require_machine_suffix
= require_machine_suffix
;
2893 pl
->priority
= priority
;
2894 pl
->os_multilib
= os_multilib
;
2896 /* Insert after PREV. */
2901 /* Same as add_prefix, but prepending target_system_root to prefix. */
2902 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2904 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2905 const char *component
,
2906 /* enum prefix_priority */ int priority
,
2907 int require_machine_suffix
, int os_multilib
)
2909 if (!IS_ABSOLUTE_PATH (prefix
))
2910 fatal_error ("system path '%s' is not absolute", prefix
);
2912 if (target_system_root
)
2914 if (target_sysroot_suffix
)
2915 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2916 prefix
= concat (target_system_root
, prefix
, NULL
);
2918 /* We have to override this because GCC's notion of sysroot
2919 moves along with GCC. */
2923 add_prefix (pprefix
, prefix
, component
, priority
,
2924 require_machine_suffix
, os_multilib
);
2927 /* Execute the command specified by the arguments on the current line of spec.
2928 When using pipes, this includes several piped-together commands
2929 with `|' between them.
2931 Return 0 if successful, -1 if failed. */
2937 int n_commands
; /* # of command. */
2939 struct pex_obj
*pex
;
2942 const char *prog
; /* program name. */
2943 const char **argv
; /* vector of args. */
2946 struct command
*commands
; /* each command buffer with above info. */
2948 gcc_assert (!processing_spec_function
);
2952 string
= find_a_file (&exec_prefixes
, argbuf
[0], X_OK
, false);
2953 argbuf
[0] = (string
) ? string
: argbuf
[0];
2954 insert_wrapper (wrapper_string
);
2957 /* Count # of piped commands. */
2958 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2959 if (strcmp (argbuf
[i
], "|") == 0)
2962 /* Get storage for each command. */
2963 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2965 /* Split argbuf into its separate piped processes,
2966 and record info about each one.
2967 Also search for the programs that are to be run. */
2969 commands
[0].prog
= argbuf
[0]; /* first command. */
2970 commands
[0].argv
= &argbuf
[0];
2972 if (!wrapper_string
)
2974 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2975 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2978 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2979 if (strcmp (argbuf
[i
], "|") == 0)
2980 { /* each command. */
2981 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2982 fatal_error ("-pipe not supported");
2984 argbuf
[i
] = 0; /* termination of command args. */
2985 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2986 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2987 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2990 commands
[n_commands
].argv
[0] = string
;
2994 argbuf
[argbuf_index
] = 0;
2996 /* If -v, print what we are about to do, and maybe query. */
3000 /* For help listings, put a blank line between sub-processes. */
3001 if (print_help_list
)
3002 fputc ('\n', stderr
);
3004 /* Print each piped command as a separate line. */
3005 for (i
= 0; i
< n_commands
; i
++)
3007 const char *const *j
;
3009 if (verbose_only_flag
)
3011 for (j
= commands
[i
].argv
; *j
; j
++)
3014 for (p
= *j
; *p
; ++p
)
3015 if (!ISALNUM ((unsigned char) *p
)
3016 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
3020 fprintf (stderr
, " \"");
3021 for (p
= *j
; *p
; ++p
)
3023 if (*p
== '"' || *p
== '\\' || *p
== '$')
3024 fputc ('\\', stderr
);
3027 fputc ('"', stderr
);
3030 fprintf (stderr
, " %s", *j
);
3034 for (j
= commands
[i
].argv
; *j
; j
++)
3035 fprintf (stderr
, " %s", *j
);
3037 /* Print a pipe symbol after all but the last command. */
3038 if (i
+ 1 != n_commands
)
3039 fprintf (stderr
, " |");
3040 fprintf (stderr
, "\n");
3043 if (verbose_only_flag
!= 0)
3045 /* verbose_only_flag should act as if the spec was
3046 executed, so increment execution_count before
3047 returning. This prevents spurious warnings about
3048 unused linker input files, etc. */
3053 fnotice (stderr
, "\nGo ahead? (y or n) ");
3057 while (getchar () != '\n')
3060 if (i
!= 'y' && i
!= 'Y')
3065 #ifdef ENABLE_VALGRIND_CHECKING
3066 /* Run the each command through valgrind. To simplify prepending the
3067 path to valgrind and the option "-q" (for quiet operation unless
3068 something triggers), we allocate a separate argv array. */
3070 for (i
= 0; i
< n_commands
; i
++)
3076 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
3079 argv
= XALLOCAVEC (const char *, argc
+ 3);
3081 argv
[0] = VALGRIND_PATH
;
3083 for (j
= 2; j
< argc
+ 2; j
++)
3084 argv
[j
] = commands
[i
].argv
[j
- 2];
3087 commands
[i
].argv
= argv
;
3088 commands
[i
].prog
= argv
[0];
3092 /* Run each piped subprocess. */
3094 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
3095 ? PEX_RECORD_TIMES
: 0),
3096 progname
, temp_filename
);
3098 pfatal_with_name (_("pex_init failed"));
3100 for (i
= 0; i
< n_commands
; i
++)
3104 const char *string
= commands
[i
].argv
[0];
3106 errmsg
= pex_run (pex
,
3107 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
3108 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
3109 string
, CONST_CAST (char **, commands
[i
].argv
),
3114 fatal_error (errmsg
);
3118 pfatal_with_name (errmsg
);
3122 if (string
!= commands
[i
].prog
)
3123 free (CONST_CAST (char *, string
));
3128 /* Wait for all the subprocesses to finish. */
3132 struct pex_time
*times
= NULL
;
3135 statuses
= (int *) alloca (n_commands
* sizeof (int));
3136 if (!pex_get_status (pex
, n_commands
, statuses
))
3137 pfatal_with_name (_("failed to get exit status"));
3139 if (report_times
|| report_times_to_file
)
3141 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
3142 if (!pex_get_times (pex
, n_commands
, times
))
3143 pfatal_with_name (_("failed to get process times"));
3148 for (i
= 0; i
< n_commands
; ++i
)
3150 int status
= statuses
[i
];
3152 if (WIFSIGNALED (status
))
3155 /* SIGPIPE is a special case. It happens in -pipe mode
3156 when the compiler dies before the preprocessor is done,
3157 or the assembler dies before the compiler is done.
3158 There's generally been an error already, and this is
3159 just fallout. So don't generate another error unless
3160 we would otherwise have succeeded. */
3161 if (WTERMSIG (status
) == SIGPIPE
3162 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
3169 internal_error ("%s (program %s)",
3170 strsignal (WTERMSIG (status
)), commands
[i
].prog
);
3172 else if (WIFEXITED (status
)
3173 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3175 if (WEXITSTATUS (status
) > greatest_status
)
3176 greatest_status
= WEXITSTATUS (status
);
3180 if (report_times
|| report_times_to_file
)
3182 struct pex_time
*pt
= ×
[i
];
3185 ut
= ((double) pt
->user_seconds
3186 + (double) pt
->user_microseconds
/ 1.0e6
);
3187 st
= ((double) pt
->system_seconds
3188 + (double) pt
->system_microseconds
/ 1.0e6
);
3193 fnotice (stderr
, "# %s %.2f %.2f\n",
3194 commands
[i
].prog
, ut
, st
);
3196 if (report_times_to_file
)
3199 const char *const *j
;
3201 fprintf (report_times_to_file
, "%g %g", ut
, st
);
3203 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
3206 for (p
= *j
; *p
; ++p
)
3207 if (*p
== '"' || *p
== '\\' || *p
== '$'
3213 fprintf (report_times_to_file
, " \"");
3214 for (p
= *j
; *p
; ++p
)
3216 if (*p
== '"' || *p
== '\\' || *p
== '$')
3217 fputc ('\\', report_times_to_file
);
3218 fputc (*p
, report_times_to_file
);
3220 fputc ('"', report_times_to_file
);
3223 fprintf (report_times_to_file
, " %s", *j
);
3226 fputc ('\n', report_times_to_file
);
3236 /* Find all the switches given to us
3237 and make a vector describing them.
3238 The elements of the vector are strings, one per switch given.
3239 If a switch uses following arguments, then the `part1' field
3240 is the switch itself and the `args' field
3241 is a null-terminated vector containing the following arguments.
3242 Bits in the `live_cond' field are:
3243 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3244 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3245 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3246 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored
3247 in all do_spec calls afterwards. Used for %<S from self specs.
3248 The `validated' field is nonzero if any spec has looked at this switch;
3249 if it remains zero at the end of the run, it must be meaningless. */
3251 #define SWITCH_LIVE 0x1
3252 #define SWITCH_FALSE 0x2
3253 #define SWITCH_IGNORE 0x4
3254 #define SWITCH_IGNORE_PERMANENTLY 0x8
3260 unsigned int live_cond
;
3261 unsigned char validated
;
3262 unsigned char ordering
;
3265 static struct switchstr
*switches
;
3267 static int n_switches
;
3269 /* Set to zero if -fcompare-debug is disabled, positive if it's
3270 enabled and we're running the first compilation, negative if it's
3271 enabled and we're running the second compilation. For most of the
3272 time, it's in the range -1..1, but it can be temporarily set to 2
3273 or 3 to indicate that the -fcompare-debug flags didn't come from
3274 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3275 variable, until a synthesized -fcompare-debug flag is added to the
3279 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3280 int compare_debug_second
;
3282 /* Set to the flags that should be passed to the second compilation in
3283 a -fcompare-debug compilation. */
3284 const char *compare_debug_opt
;
3286 static struct switchstr
*switches_debug_check
[2];
3288 static int n_switches_debug_check
[2];
3290 static char *debug_check_temp_file
[2];
3292 /* Language is one of three things:
3294 1) The name of a real programming language.
3295 2) NULL, indicating that no one has figured out
3297 3) '*', indicating that the file should be passed
3302 const char *language
;
3303 struct compiler
*incompiler
;
3308 /* Also a vector of input files specified. */
3310 static struct infile
*infiles
;
3314 /* True if multiple input files are being compiled to a single
3317 static bool combine_inputs
;
3319 /* This counts the number of libraries added by lang_specific_driver, so that
3320 we can tell if there were any user supplied any files or libraries. */
3322 static int added_libraries
;
3324 /* And a vector of corresponding output files is made up later. */
3326 const char **outfiles
;
3328 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3330 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3331 is true if we should look for an executable suffix. DO_OBJ
3332 is true if we should look for an object suffix. */
3335 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3336 int do_obj ATTRIBUTE_UNUSED
)
3338 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3346 len
= strlen (name
);
3348 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3349 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3350 if (do_obj
&& len
> 2
3351 && name
[len
- 2] == '.'
3352 && name
[len
- 1] == 'o')
3354 obstack_grow (&obstack
, name
, len
- 2);
3355 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3356 name
= XOBFINISH (&obstack
, const char *);
3360 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3361 /* If there is no filetype, make it the executable suffix (which includes
3362 the "."). But don't get confused if we have just "-o". */
3363 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3366 for (i
= len
- 1; i
>= 0; i
--)
3367 if (IS_DIR_SEPARATOR (name
[i
]))
3370 for (i
++; i
< len
; i
++)
3374 obstack_grow (&obstack
, name
, len
);
3375 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3376 strlen (TARGET_EXECUTABLE_SUFFIX
));
3377 name
= XOBFINISH (&obstack
, const char *);
3384 /* Display the command line switches accepted by gcc. */
3388 printf (_("Usage: %s [options] file...\n"), progname
);
3389 fputs (_("Options:\n"), stdout
);
3391 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3392 fputs (_(" --help Display this information\n"), stdout
);
3393 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3394 fputs (_(" --help={target|optimizers|warnings|params|[^]{joined|separate|undocumented}}[,...]\n"), stdout
);
3395 fputs (_(" Display specific types of command line options\n"), stdout
);
3397 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3398 fputs (_(" --version Display compiler version information\n"), stdout
);
3399 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3400 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3401 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3402 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3403 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3404 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3405 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3406 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3408 -print-multi-lib Display the mapping between command line options and\n\
3409 multiple library search directories\n"), stdout
);
3410 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3411 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout
);
3412 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
3413 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3414 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3415 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3416 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3417 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3418 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3419 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3420 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3421 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout
);
3423 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3424 prefixes to other gcc components\n"), stdout
);
3425 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3426 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3427 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3428 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3430 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3431 and libraries\n"), stdout
);
3432 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3433 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3434 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3435 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3436 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3437 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3438 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3440 -x <language> Specify the language of the following input files\n\
3441 Permissible languages include: c c++ assembler none\n\
3442 'none' means revert to the default behavior of\n\
3443 guessing the language based on the file's extension\n\
3447 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3448 passed on to the various sub-processes invoked by %s. In order to pass\n\
3449 other options on to these processes the -W<letter> options must be used.\n\
3452 /* The rest of the options are displayed by invocations of the various
3457 add_preprocessor_option (const char *option
, int len
)
3459 n_preprocessor_options
++;
3461 if (! preprocessor_options
)
3462 preprocessor_options
= XNEWVEC (char *, n_preprocessor_options
);
3464 preprocessor_options
= XRESIZEVEC (char *, preprocessor_options
,
3465 n_preprocessor_options
);
3467 preprocessor_options
[n_preprocessor_options
- 1] =
3468 save_string (option
, len
);
3472 add_assembler_option (const char *option
, int len
)
3474 n_assembler_options
++;
3476 if (! assembler_options
)
3477 assembler_options
= XNEWVEC (char *, n_assembler_options
);
3479 assembler_options
= XRESIZEVEC (char *, assembler_options
,
3480 n_assembler_options
);
3482 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3486 add_linker_option (const char *option
, int len
)
3490 if (! linker_options
)
3491 linker_options
= XNEWVEC (char *, n_linker_options
);
3493 linker_options
= XRESIZEVEC (char *, linker_options
, n_linker_options
);
3495 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3498 /* Create the vector `switches' and its contents.
3499 Store its length in `n_switches'. */
3502 process_command (int argc
, const char **argv
)
3507 const char *spec_lang
= 0;
3508 int last_language_n_infiles
;
3509 int lang_n_infiles
= 0;
3510 #ifdef MODIFY_TARGET_NAME
3511 int is_modify_target_name
;
3514 const char *tooldir_prefix
;
3515 char *(*get_relative_prefix
) (const char *, const char *,
3516 const char *) = NULL
;
3518 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3522 added_libraries
= 0;
3524 /* Figure compiler version from version string. */
3526 compiler_version
= temp1
= xstrdup (version_string
);
3528 for (; *temp1
; ++temp1
)
3537 /* Convert new-style -- options to old-style. */
3538 translate_options (&argc
,
3539 CONST_CAST2 (const char *const **, const char ***,
3542 /* Handle any -no-canonical-prefixes flag early, to assign the function
3543 that builds relative prefixes. This function creates default search
3544 paths that are needed later in normal option handling. */
3546 for (i
= 1; i
< argc
; i
++)
3548 if (! strcmp (argv
[i
], "-no-canonical-prefixes"))
3550 get_relative_prefix
= make_relative_prefix_ignore_links
;
3554 if (! get_relative_prefix
)
3555 get_relative_prefix
= make_relative_prefix
;
3557 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3558 see if we can create it from the pathname specified in argv[0]. */
3560 gcc_libexec_prefix
= standard_libexec_prefix
;
3562 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3563 if (!gcc_exec_prefix
)
3565 gcc_exec_prefix
= get_relative_prefix (argv
[0],
3566 standard_bindir_prefix
,
3567 standard_exec_prefix
);
3568 gcc_libexec_prefix
= get_relative_prefix (argv
[0],
3569 standard_bindir_prefix
,
3570 standard_libexec_prefix
);
3571 if (gcc_exec_prefix
)
3572 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3576 /* make_relative_prefix requires a program name, but
3577 GCC_EXEC_PREFIX is typically a directory name with a trailing
3578 / (which is ignored by make_relative_prefix), so append a
3580 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3581 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
3582 standard_exec_prefix
,
3583 standard_libexec_prefix
);
3585 /* The path is unrelocated, so fallback to the original setting. */
3586 if (!gcc_libexec_prefix
)
3587 gcc_libexec_prefix
= standard_libexec_prefix
;
3593 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3594 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3595 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3597 /* Do language-specific adjustment/addition of flags. */
3598 lang_specific_driver (&argc
,
3599 CONST_CAST2 (const char *const **, const char ***,
3603 if (gcc_exec_prefix
)
3605 int len
= strlen (gcc_exec_prefix
);
3607 if (len
> (int) sizeof ("/lib/gcc/") - 1
3608 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3610 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3611 if (IS_DIR_SEPARATOR (*temp
)
3612 && strncmp (temp
+ 1, "lib", 3) == 0
3613 && IS_DIR_SEPARATOR (temp
[4])
3614 && strncmp (temp
+ 5, "gcc", 3) == 0)
3615 len
-= sizeof ("/lib/gcc/") - 1;
3618 set_std_prefix (gcc_exec_prefix
, len
);
3619 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3620 PREFIX_PRIORITY_LAST
, 0, 0);
3621 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3622 PREFIX_PRIORITY_LAST
, 0, 0);
3625 /* COMPILER_PATH and LIBRARY_PATH have values
3626 that are lists of directory names with colons. */
3628 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3631 const char *startp
, *endp
;
3632 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3634 startp
= endp
= temp
;
3637 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3639 strncpy (nstore
, startp
, endp
- startp
);
3641 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3642 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3644 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3645 nstore
[endp
- startp
+ 1] = 0;
3648 nstore
[endp
- startp
] = 0;
3649 add_prefix (&exec_prefixes
, nstore
, 0,
3650 PREFIX_PRIORITY_LAST
, 0, 0);
3651 add_prefix (&include_prefixes
, nstore
, 0,
3652 PREFIX_PRIORITY_LAST
, 0, 0);
3655 endp
= startp
= endp
+ 1;
3662 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
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 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3695 GET_ENVIRONMENT (temp
, "LPATH");
3696 if (temp
&& *cross_compile
== '0')
3698 const char *startp
, *endp
;
3699 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3701 startp
= endp
= temp
;
3704 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3706 strncpy (nstore
, startp
, endp
- startp
);
3708 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3709 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3711 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3712 nstore
[endp
- startp
+ 1] = 0;
3715 nstore
[endp
- startp
] = 0;
3716 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3717 PREFIX_PRIORITY_LAST
, 0, 1);
3720 endp
= startp
= endp
+ 1;
3727 /* Scan argv twice. Here, the first time, just count how many switches
3728 there will be in their vector, and how many input files in theirs.
3729 Here we also parse the switches that cc itself uses (e.g. -v). */
3731 for (i
= 1; i
< argc
; i
++)
3733 if (! strcmp (argv
[i
], "-dumpspecs"))
3735 struct spec_list
*sl
;
3737 for (sl
= specs
; sl
; sl
= sl
->next
)
3738 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3739 if (link_command_spec
)
3740 printf ("*link_command:\n%s\n\n", link_command_spec
);
3743 else if (! strcmp (argv
[i
], "-dumpversion"))
3745 printf ("%s\n", spec_version
);
3748 else if (! strcmp (argv
[i
], "-dumpmachine"))
3750 printf ("%s\n", spec_machine
);
3753 else if (strcmp (argv
[i
], "-fversion") == 0)
3755 /* translate_options () has turned --version into -fversion. */
3758 /* We will be passing a dummy file on to the sub-processes. */
3762 /* CPP driver cannot obtain switch from cc1_options. */
3764 add_preprocessor_option ("--version", strlen ("--version"));
3765 add_assembler_option ("--version", strlen ("--version"));
3766 add_linker_option ("--version", strlen ("--version"));
3768 else if (strcmp (argv
[i
], "-fhelp") == 0)
3770 /* translate_options () has turned --help into -fhelp. */
3771 print_help_list
= 1;
3773 /* We will be passing a dummy file on to the sub-processes. */
3777 /* CPP driver cannot obtain switch from cc1_options. */
3779 add_preprocessor_option ("--help", 6);
3780 add_assembler_option ("--help", 6);
3781 add_linker_option ("--help", 6);
3783 else if (strncmp (argv
[i
], "-fhelp=", 7) == 0)
3785 /* translate_options () has turned --help into -fhelp. */
3786 print_subprocess_help
= 2;
3788 /* We will be passing a dummy file on to the sub-processes. */
3792 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3794 /* translate_options() has turned --target-help into -ftarget-help. */
3795 print_subprocess_help
= 1;
3797 /* We will be passing a dummy file on to the sub-processes. */
3801 /* CPP driver cannot obtain switch from cc1_options. */
3803 add_preprocessor_option ("--target-help", 13);
3804 add_assembler_option ("--target-help", 13);
3805 add_linker_option ("--target-help", 13);
3807 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3809 pass_exit_codes
= 1;
3812 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3813 print_search_dirs
= 1;
3814 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3815 print_file_name
= "libgcc.a";
3816 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3817 print_file_name
= argv
[i
] + 17;
3818 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3819 print_prog_name
= argv
[i
] + 17;
3820 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3821 print_multi_lib
= 1;
3822 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3823 print_multi_directory
= 1;
3824 else if (! strcmp (argv
[i
], "-print-sysroot"))
3826 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3827 print_multi_os_directory
= 1;
3828 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
3829 print_sysroot_headers_suffix
= 1;
3830 else if (! strcmp (argv
[i
], "-fcompare-debug-second"))
3832 compare_debug_second
= 1;
3835 else if (! strcmp (argv
[i
], "-fno-compare-debug"))
3837 argv
[i
] = "-fcompare-debug=";
3838 goto compare_debug_with_arg
;
3840 else if (! strcmp (argv
[i
], "-fcompare-debug"))
3842 argv
[i
] = "-fcompare-debug=-gtoggle";
3843 goto compare_debug_with_arg
;
3845 #define OPT "-fcompare-debug="
3846 else if (! strncmp (argv
[i
], OPT
, sizeof (OPT
) - 1))
3849 compare_debug_with_arg
:
3850 opt
= argv
[i
] + sizeof (OPT
) - 1;
3856 if (compare_debug
< 0)
3857 compare_debug_opt
= NULL
;
3859 compare_debug_opt
= opt
;
3862 else if (! strncmp (argv
[i
], "-Wa,", 4))
3865 /* Pass the rest of this option to the assembler. */
3867 /* Split the argument at commas. */
3869 for (j
= 4; argv
[i
][j
]; j
++)
3870 if (argv
[i
][j
] == ',')
3872 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3876 /* Record the part after the last comma. */
3877 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3879 else if (! strncmp (argv
[i
], "-Wp,", 4))
3882 /* Pass the rest of this option to the preprocessor. */
3884 /* Split the argument at commas. */
3886 for (j
= 4; argv
[i
][j
]; j
++)
3887 if (argv
[i
][j
] == ',')
3889 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3893 /* Record the part after the last comma. */
3894 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3896 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3897 /* The +e options to the C++ front-end. */
3899 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3902 /* Split the argument at commas. */
3903 for (j
= 3; argv
[i
][j
]; j
++)
3904 n_infiles
+= (argv
[i
][j
] == ',');
3906 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3909 fatal_error ("argument to '-Xlinker' is missing");
3914 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3917 fatal_error ("argument to '-Xpreprocessor' is missing");
3919 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3921 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3924 fatal_error ("argument to '-Xassembler' is missing");
3926 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3928 else if (strcmp (argv
[i
], "-l") == 0)
3931 fatal_error ("argument to '-l' is missing");
3936 else if (strncmp (argv
[i
], "-l", 2) == 0)
3938 else if (strcmp (argv
[i
], "-save-temps") == 0)
3940 save_temps_flag
= SAVE_TEMPS_CWD
;
3943 else if (strncmp (argv
[i
], "-save-temps=", 12) == 0)
3946 if (strcmp (argv
[i
]+12, "cwd") == 0)
3947 save_temps_flag
= SAVE_TEMPS_CWD
;
3948 else if (strcmp (argv
[i
]+12, "obj") == 0
3949 || strcmp (argv
[i
]+12, "object") == 0)
3950 save_temps_flag
= SAVE_TEMPS_OBJ
;
3952 fatal_error ("'%s' is an unknown -save-temps option", argv
[i
]);
3954 else if (strcmp (argv
[i
], "-no-canonical-prefixes") == 0)
3955 /* Already handled as a special case, so ignored here. */
3957 else if (strcmp (argv
[i
], "-combine") == 0)
3962 else if (strcmp (argv
[i
], "-specs") == 0)
3964 struct user_specs
*user
= XNEW (struct user_specs
);
3966 fatal_error ("argument to '-specs' is missing");
3968 user
->next
= (struct user_specs
*) 0;
3969 user
->filename
= argv
[i
];
3970 if (user_specs_tail
)
3971 user_specs_tail
->next
= user
;
3973 user_specs_head
= user
;
3974 user_specs_tail
= user
;
3976 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3978 struct user_specs
*user
= XNEW (struct user_specs
);
3979 if (strlen (argv
[i
]) == 7)
3980 fatal_error ("argument to '-specs=' is missing");
3982 user
->next
= (struct user_specs
*) 0;
3983 user
->filename
= argv
[i
] + 7;
3984 if (user_specs_tail
)
3985 user_specs_tail
->next
= user
;
3987 user_specs_head
= user
;
3988 user_specs_tail
= user
;
3990 else if (strcmp (argv
[i
], "-time") == 0)
3992 else if (strncmp (argv
[i
], "-time=", sizeof ("-time=") - 1) == 0)
3994 if (report_times_to_file
)
3995 fclose (report_times_to_file
);
3996 report_times_to_file
= fopen (argv
[i
] + sizeof ("-time=") - 1, "a");
3998 else if (strcmp (argv
[i
], "-pipe") == 0)
4000 /* -pipe has to go into the switches array as well as
4005 else if (strcmp (argv
[i
], "-wrapper") == 0)
4008 fatal_error ("argument to '-wrapper' is missing");
4010 wrapper_string
= argv
[i
];
4014 else if (strcmp (argv
[i
], "-###") == 0)
4016 /* This is similar to -v except that there is no execution
4017 of the commands and the echoed arguments are quoted. It
4018 is intended for use in shell scripts to capture the
4019 driver-generated command line. */
4020 verbose_only_flag
++;
4023 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4025 const char *p
= &argv
[i
][1];
4035 if (p
[1] == 0 && i
+ 1 == argc
)
4036 fatal_error ("argument to '-B' is missing");
4042 len
= strlen (value
);
4044 /* Catch the case where the user has forgotten to append a
4045 directory separator to the path. Note, they may be using
4046 -B to add an executable name prefix, eg "i386-elf-", in
4047 order to distinguish between multiple installations of
4048 GCC in the same directory. Hence we must check to see
4049 if appending a directory separator actually makes a
4050 valid directory name. */
4051 if (! IS_DIR_SEPARATOR (value
[len
- 1])
4052 && is_directory (value
, false))
4054 char *tmp
= XNEWVEC (char, len
+ 2);
4055 strcpy (tmp
, value
);
4056 tmp
[len
] = DIR_SEPARATOR
;
4061 add_prefix (&exec_prefixes
, value
, NULL
,
4062 PREFIX_PRIORITY_B_OPT
, 0, 0);
4063 add_prefix (&startfile_prefixes
, value
, NULL
,
4064 PREFIX_PRIORITY_B_OPT
, 0, 0);
4065 add_prefix (&include_prefixes
, value
, NULL
,
4066 PREFIX_PRIORITY_B_OPT
, 0, 0);
4071 case 'v': /* Print our subcommands and print versions. */
4073 /* If they do anything other than exactly `-v', don't set
4074 verbose_flag; rather, continue on to give the error. */
4093 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
4098 /* Forward scan, just in case -S, -E or -c is specified
4105 if (argv
[j
][0] == '-')
4107 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
4113 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
4114 j
+= skip
- (argv
[j
][2] != 0);
4115 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
4122 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4124 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
4126 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
4128 /* Save the output name in case -save-temps=obj was used. */
4129 if ((p
[1] == 0) && argv
[i
+ 1])
4130 save_temps_prefix
= xstrdup(argv
[i
+ 1]);
4132 save_temps_prefix
= xstrdup(argv
[i
] + 1);
4138 #ifdef MODIFY_TARGET_NAME
4139 is_modify_target_name
= 0;
4141 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
4142 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
4144 char *new_name
= XNEWVEC (char, strlen (modify_target
[j
].str
)
4145 + strlen (spec_machine
));
4148 int made_addition
= 0;
4150 is_modify_target_name
= 1;
4151 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
4153 if (modify_target
[j
].add_del
== DELETE
4154 && (! strncmp (q
, modify_target
[j
].str
,
4155 strlen (modify_target
[j
].str
))))
4156 p
+= strlen (modify_target
[j
].str
);
4157 else if (modify_target
[j
].add_del
== ADD
4158 && ! made_addition
&& *p
== '-')
4160 for (r
= modify_target
[j
].str
; *r
!= 0; )
4168 spec_machine
= new_name
;
4171 if (is_modify_target_name
)
4177 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4178 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4179 else if (WORD_SWITCH_TAKES_ARG (p
))
4180 i
+= WORD_SWITCH_TAKES_ARG (p
);
4190 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4191 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4192 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
4194 save_temps_length
= strlen (save_temps_prefix
);
4195 temp
= strrchr (lbasename (save_temps_prefix
), '.');
4198 save_temps_length
-= strlen (temp
);
4199 save_temps_prefix
[save_temps_length
] = '\0';
4203 else if (save_temps_prefix
!= NULL
)
4205 free (save_temps_prefix
);
4206 save_temps_prefix
= NULL
;
4209 if (save_temps_flag
&& use_pipes
)
4211 /* -save-temps overrides -pipe, so that temp files are produced */
4212 if (save_temps_flag
)
4213 warning (0, "-pipe ignored because -save-temps specified");
4219 const char *gcd
= getenv ("GCC_COMPARE_DEBUG");
4221 if (gcd
&& gcd
[0] == '-')
4224 compare_debug_opt
= gcd
;
4227 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
4230 compare_debug_opt
= "-gtoggle";
4234 else if (compare_debug
< 0)
4237 gcc_assert (!compare_debug_opt
);
4240 /* Set up the search paths. We add directories that we expect to
4241 contain GNU Toolchain components before directories specified by
4242 the machine description so that we will find GNU components (like
4243 the GNU assembler) before those of the host system. */
4245 /* If we don't know where the toolchain has been installed, use the
4246 configured-in locations. */
4247 if (!gcc_exec_prefix
)
4250 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4251 PREFIX_PRIORITY_LAST
, 1, 0);
4252 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4253 PREFIX_PRIORITY_LAST
, 2, 0);
4254 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4255 PREFIX_PRIORITY_LAST
, 2, 0);
4257 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4258 PREFIX_PRIORITY_LAST
, 1, 0);
4261 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4262 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
4263 dir_separator_str
, NULL
);
4265 /* Look for tools relative to the location from which the driver is
4266 running, or, if that is not available, the configured prefix. */
4268 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4269 spec_machine
, dir_separator_str
,
4270 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
4272 add_prefix (&exec_prefixes
,
4273 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4274 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4275 add_prefix (&startfile_prefixes
,
4276 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4277 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4279 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4280 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4281 then consider it to relocate with the rest of the GCC installation
4282 if GCC_EXEC_PREFIX is set.
4283 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4284 if (target_system_root
&& gcc_exec_prefix
)
4286 char *tmp_prefix
= get_relative_prefix (argv
[0],
4287 standard_bindir_prefix
,
4288 target_system_root
);
4289 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4291 target_system_root
= tmp_prefix
;
4292 target_system_root_changed
= 1;
4297 /* More prefixes are enabled in main, after we read the specs file
4298 and determine whether this is cross-compilation or not. */
4300 /* Then create the space for the vectors and scan again. */
4302 switches
= XNEWVEC (struct switchstr
, n_switches
+ 1);
4303 infiles
= XNEWVEC (struct infile
, n_infiles
+ 1);
4306 last_language_n_infiles
= -1;
4308 /* This, time, copy the text of each switch and store a pointer
4309 to the copy in the vector of switches.
4310 Store all the infiles in their vector. */
4312 for (i
= 1; i
< argc
; i
++)
4314 /* Just skip the switches that were handled by the preceding loop. */
4315 #ifdef MODIFY_TARGET_NAME
4316 is_modify_target_name
= 0;
4318 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
4319 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
4320 is_modify_target_name
= 1;
4322 if (is_modify_target_name
)
4326 if (! strncmp (argv
[i
], "-Wa,", 4))
4328 else if (! strncmp (argv
[i
], "-Wp,", 4))
4330 else if (! strcmp (argv
[i
], "-no-canonical-prefixes"))
4332 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
4334 else if (! strcmp (argv
[i
], "-print-search-dirs"))
4336 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
4338 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
4340 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
4342 else if (! strcmp (argv
[i
], "-print-multi-lib"))
4344 else if (! strcmp (argv
[i
], "-print-multi-directory"))
4346 else if (! strcmp (argv
[i
], "-print-sysroot"))
4348 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
4350 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
4352 else if (! strncmp (argv
[i
], "--sysroot=", strlen ("--sysroot=")))
4354 target_system_root
= argv
[i
] + strlen ("--sysroot=");
4355 target_system_root_changed
= 1;
4357 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
4359 /* Compensate for the +e options to the C++ front-end;
4360 they're there simply for cfront call-compatibility. We do
4361 some magic in default_compilers to pass them down properly.
4362 Note we deliberately start at the `+' here, to avoid passing
4363 -e0 or -e1 down into the linker. */
4364 switches
[n_switches
].part1
= &argv
[i
][0];
4365 switches
[n_switches
].args
= 0;
4366 switches
[n_switches
].live_cond
= 0;
4367 switches
[n_switches
].validated
= 0;
4370 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
4373 /* Split the argument at commas. */
4375 for (j
= 4; argv
[i
][j
]; j
++)
4376 if (argv
[i
][j
] == ',')
4378 infiles
[n_infiles
].language
= "*";
4379 infiles
[n_infiles
++].name
4380 = save_string (argv
[i
] + prev
, j
- prev
);
4383 /* Record the part after the last comma. */
4384 infiles
[n_infiles
].language
= "*";
4385 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
4387 else if (strcmp (argv
[i
], "-Xlinker") == 0)
4389 infiles
[n_infiles
].language
= "*";
4390 infiles
[n_infiles
++].name
= argv
[++i
];
4392 /* Xassembler and Xpreprocessor were already handled in the first argv
4393 scan, so all we need to do here is ignore them and their argument. */
4394 else if (strcmp (argv
[i
], "-Xassembler") == 0)
4396 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
4398 else if (strcmp (argv
[i
], "-l") == 0)
4399 { /* POSIX allows separation of -l and the lib arg;
4400 canonicalize by concatenating -l with its arg */
4401 infiles
[n_infiles
].language
= "*";
4402 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
4404 else if (strncmp (argv
[i
], "-l", 2) == 0)
4406 infiles
[n_infiles
].language
= "*";
4407 infiles
[n_infiles
++].name
= argv
[i
];
4409 else if (strcmp (argv
[i
], "-wrapper") == 0)
4411 else if (strcmp (argv
[i
], "-specs") == 0)
4413 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
4415 else if (strcmp (argv
[i
], "-time") == 0)
4417 else if (strncmp (argv
[i
], "-time=", sizeof ("-time=") - 1) == 0)
4419 else if (strcmp (argv
[i
], "-###") == 0)
4421 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4423 const char *p
= &argv
[i
][1];
4428 if (p
[1] == 0 && i
+ 1 == argc
)
4429 fatal_error ("argument to '-x' is missing");
4431 spec_lang
= argv
[++i
];
4434 if (! strcmp (spec_lang
, "none"))
4435 /* Suppress the warning if -xnone comes after the last input
4436 file, because alternate command interfaces like g++ might
4437 find it useful to place -xnone after each input file. */
4440 last_language_n_infiles
= n_infiles
;
4443 switches
[n_switches
].part1
= p
;
4444 /* Deal with option arguments in separate argv elements. */
4445 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4446 || WORD_SWITCH_TAKES_ARG (p
))
4449 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4453 /* Count only the option arguments in separate argv elements. */
4454 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4456 if (i
+ n_args
>= argc
)
4457 fatal_error ("argument to '-%s' is missing", p
);
4458 switches
[n_switches
].args
4459 = XNEWVEC (const char *, n_args
+ 1);
4461 switches
[n_switches
].args
[j
++] = argv
[++i
];
4462 /* Null-terminate the vector. */
4463 switches
[n_switches
].args
[j
] = 0;
4465 else if (strchr (switches_need_spaces
, c
))
4467 /* On some systems, ld cannot handle some options without
4468 a space. So split the option from its argument. */
4469 char *part1
= XNEWVEC (char, 2);
4473 switches
[n_switches
].part1
= part1
;
4474 switches
[n_switches
].args
= XNEWVEC (const char *, 2);
4475 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4476 switches
[n_switches
].args
[1] = 0;
4479 switches
[n_switches
].args
= 0;
4481 switches
[n_switches
].live_cond
= 0;
4482 switches
[n_switches
].validated
= 0;
4483 switches
[n_switches
].ordering
= 0;
4484 /* These are always valid, since gcc.c itself understands the
4485 first four, gfortranspec.c understands -static-libgfortran
4486 and g++spec.c understands -static-libstdc++ */
4487 if (!strcmp (p
, "save-temps")
4488 || !strcmp (p
, "static-libgcc")
4489 || !strcmp (p
, "shared-libgcc")
4490 || !strcmp (p
, "pipe")
4491 || !strcmp (p
, "static-libgfortran")
4492 || !strcmp (p
, "static-libstdc++"))
4493 switches
[n_switches
].validated
= 1;
4496 char ch
= switches
[n_switches
].part1
[0];
4498 switches
[n_switches
].validated
= 1;
4504 const char *p
= strrchr (argv
[i
], '@');
4508 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4509 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4511 /* For LTO static archive support we handle input file
4512 specifications that are composed of a filename and
4513 an offset like FNAME@OFFSET. */
4516 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
4517 && strlen (p
) == (unsigned int)consumed
)
4519 fname
= (char *)xmalloc (p
- argv
[i
] + 1);
4520 memcpy (fname
, argv
[i
], p
- argv
[i
]);
4521 fname
[p
- argv
[i
]] = '\0';
4522 /* Only accept non-stdin and existing FNAME parts, otherwise
4523 try with the full name. */
4524 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
4527 fname
= xstrdup (argv
[i
]);
4531 fname
= xstrdup (argv
[i
]);
4533 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
4534 perror_with_name (fname
);
4537 infiles
[n_infiles
].language
= spec_lang
;
4538 infiles
[n_infiles
++].name
= argv
[i
];
4545 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4546 warning (0, "'-x %s' after last input file has no effect", spec_lang
);
4548 if (compare_debug
== 2 || compare_debug
== 3)
4550 switches
[n_switches
].part1
= concat ("fcompare-debug=",
4553 switches
[n_switches
].args
= 0;
4554 switches
[n_switches
].live_cond
= 0;
4555 switches
[n_switches
].validated
= 0;
4556 switches
[n_switches
].ordering
= 0;
4561 /* Ensure we only invoke each subprocess once. */
4562 if (print_subprocess_help
|| print_help_list
|| print_version
)
4566 /* Create a dummy input file, so that we can pass
4567 the help option on to the various sub-processes. */
4568 infiles
[0].language
= "c";
4569 infiles
[0].name
= "help-dummy";
4572 switches
[n_switches
].part1
= 0;
4573 infiles
[n_infiles
].name
= 0;
4576 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4577 and place that in the environment. */
4580 set_collect_gcc_options (void)
4585 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4587 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4588 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4591 for (i
= 0; (int) i
< n_switches
; i
++)
4593 const char *const *args
;
4596 obstack_grow (&collect_obstack
, " ", 1);
4600 /* Ignore elided switches. */
4601 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) != 0)
4604 obstack_grow (&collect_obstack
, "'-", 2);
4605 q
= switches
[i
].part1
;
4606 while ((p
= strchr (q
, '\'')))
4608 obstack_grow (&collect_obstack
, q
, p
- q
);
4609 obstack_grow (&collect_obstack
, "'\\''", 4);
4612 obstack_grow (&collect_obstack
, q
, strlen (q
));
4613 obstack_grow (&collect_obstack
, "'", 1);
4615 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4617 obstack_grow (&collect_obstack
, " '", 2);
4619 while ((p
= strchr (q
, '\'')))
4621 obstack_grow (&collect_obstack
, q
, p
- q
);
4622 obstack_grow (&collect_obstack
, "'\\''", 4);
4625 obstack_grow (&collect_obstack
, q
, strlen (q
));
4626 obstack_grow (&collect_obstack
, "'", 1);
4629 obstack_grow (&collect_obstack
, "\0", 1);
4630 xputenv (XOBFINISH (&collect_obstack
, char *));
4633 /* Process a spec string, accumulating and running commands. */
4635 /* These variables describe the input file name.
4636 input_file_number is the index on outfiles of this file,
4637 so that the output file name can be stored for later use by %o.
4638 input_basename is the start of the part of the input file
4639 sans all directory names, and basename_length is the number
4640 of characters starting there excluding the suffix .c or whatever. */
4642 static const char *gcc_input_filename
;
4643 static int input_file_number
;
4644 size_t input_filename_length
;
4645 static int basename_length
;
4646 static int suffixed_basename_length
;
4647 static const char *input_basename
;
4648 static const char *input_suffix
;
4649 #ifndef HOST_LACKS_INODE_NUMBERS
4650 static struct stat input_stat
;
4652 static int input_stat_set
;
4654 /* The compiler used to process the current input file. */
4655 static struct compiler
*input_file_compiler
;
4657 /* These are variables used within do_spec and do_spec_1. */
4659 /* Nonzero if an arg has been started and not yet terminated
4660 (with space, tab or newline). */
4661 static int arg_going
;
4663 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4664 is a temporary file name. */
4665 static int delete_this_arg
;
4667 /* Nonzero means %w has been seen; the next arg to be terminated
4668 is the output file name of this compilation. */
4669 static int this_is_output_file
;
4671 /* Nonzero means %s has been seen; the next arg to be terminated
4672 is the name of a library file and we should try the standard
4673 search dirs for it. */
4674 static int this_is_library_file
;
4676 /* Nonzero means %T has been seen; the next arg to be terminated
4677 is the name of a linker script and we should try all of the
4678 standard search dirs for it. If it is found insert a --script
4679 command line switch and then substitute the full path in place,
4680 otherwise generate an error message. */
4681 static int this_is_linker_script
;
4683 /* Nonzero means that the input of this command is coming from a pipe. */
4684 static int input_from_pipe
;
4686 /* Nonnull means substitute this for any suffix when outputting a switches
4688 static const char *suffix_subst
;
4690 /* If there is an argument being accumulated, terminate it and store it. */
4693 end_going_arg (void)
4699 obstack_1grow (&obstack
, 0);
4700 string
= XOBFINISH (&obstack
, const char *);
4701 if (this_is_library_file
)
4702 string
= find_file (string
);
4703 if (this_is_linker_script
)
4705 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4707 if (full_script_path
== NULL
)
4709 error ("unable to locate default linker script '%s' in the library search paths", string
);
4710 /* Script was not found on search path. */
4713 store_arg ("--script", false, false);
4714 string
= full_script_path
;
4716 store_arg (string
, delete_this_arg
, this_is_output_file
);
4717 if (this_is_output_file
)
4718 outfiles
[input_file_number
] = string
;
4724 /* Parse the WRAPPER string which is a comma separated list of the command line
4725 and insert them into the beginning of argbuf. */
4728 insert_wrapper (const char *wrapper
)
4732 char *buf
= xstrdup (wrapper
);
4741 while ((p
= strchr (p
, ',')) != NULL
);
4743 if (argbuf_index
+ n
>= argbuf_length
)
4745 argbuf_length
= argbuf_length
* 2;
4746 while (argbuf_length
< argbuf_index
+ n
)
4748 argbuf
= XRESIZEVEC (const char *, argbuf
, argbuf_length
);
4750 for (i
= argbuf_index
- 1; i
>= 0; i
--)
4751 argbuf
[i
+ n
] = argbuf
[i
];
4764 while ((p
= strchr (p
, ',')) != NULL
);
4765 gcc_assert (i
== n
);
4769 /* Process the spec SPEC and run the commands specified therein.
4770 Returns 0 if the spec is successfully processed; -1 if failed. */
4773 do_spec (const char *spec
)
4777 value
= do_spec_2 (spec
);
4779 /* Force out any unfinished command.
4780 If -pipe, this forces out the last command if it ended in `|'. */
4783 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4786 set_collect_gcc_options ();
4788 if (argbuf_index
> 0)
4796 do_spec_2 (const char *spec
)
4802 delete_this_arg
= 0;
4803 this_is_output_file
= 0;
4804 this_is_library_file
= 0;
4805 this_is_linker_script
= 0;
4806 input_from_pipe
= 0;
4807 suffix_subst
= NULL
;
4809 result
= do_spec_1 (spec
, 0, NULL
);
4817 /* Process the given spec string and add any new options to the end
4818 of the switches/n_switches array. */
4821 do_option_spec (const char *name
, const char *spec
)
4823 unsigned int i
, value_count
, value_len
;
4824 const char *p
, *q
, *value
;
4825 char *tmp_spec
, *tmp_spec_p
;
4827 if (configure_default_options
[0].name
== NULL
)
4830 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4831 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4833 if (i
== ARRAY_SIZE (configure_default_options
))
4836 value
= configure_default_options
[i
].value
;
4837 value_len
= strlen (value
);
4839 /* Compute the size of the final spec. */
4842 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4848 /* Replace each %(VALUE) by the specified value. */
4849 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4850 + value_count
* (value_len
- strlen ("%(VALUE)")));
4851 tmp_spec_p
= tmp_spec
;
4853 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4855 memcpy (tmp_spec_p
, q
, p
- q
);
4856 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4857 memcpy (tmp_spec_p
, value
, value_len
);
4858 tmp_spec_p
+= value_len
;
4859 q
= p
+ strlen ("%(VALUE)");
4861 strcpy (tmp_spec_p
, q
);
4863 do_self_spec (tmp_spec
);
4866 /* Process the given spec string and add any new options to the end
4867 of the switches/n_switches array. */
4870 do_self_spec (const char *spec
)
4875 do_spec_1 (" ", 0, NULL
);
4877 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
4878 do_self_specs adds the replacements to switches array, so it shouldn't
4879 be processed afterwards. */
4880 for (i
= 0; i
< n_switches
; i
++)
4881 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
4882 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
4884 if (argbuf_index
> 0)
4886 switches
= XRESIZEVEC (struct switchstr
, switches
,
4887 n_switches
+ argbuf_index
+ 1);
4889 for (i
= 0; i
< argbuf_index
; i
++)
4891 struct switchstr
*sw
;
4892 const char *p
= argbuf
[i
];
4895 /* Each switch should start with '-'. */
4897 fatal_error ("switch '%s' does not start with '-'", argbuf
[i
]);
4902 sw
= &switches
[n_switches
++];
4908 /* Deal with option arguments in separate argv elements. */
4909 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4910 || WORD_SWITCH_TAKES_ARG (p
))
4913 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4917 /* Count only the option arguments in separate argv elements. */
4918 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4920 if (i
+ n_args
>= argbuf_index
)
4921 fatal_error ("argument to '-%s' is missing", p
);
4923 = XNEWVEC (const char *, n_args
+ 1);
4925 sw
->args
[j
++] = argbuf
[++i
];
4926 /* Null-terminate the vector. */
4929 else if (strchr (switches_need_spaces
, c
))
4931 /* On some systems, ld cannot handle some options without
4932 a space. So split the option from its argument. */
4933 char *part1
= XNEWVEC (char, 2);
4938 sw
->args
= XNEWVEC (const char *, 2);
4939 sw
->args
[0] = xstrdup (p
+1);
4946 switches
[n_switches
].part1
= 0;
4950 /* Callback for processing %D and %I specs. */
4952 struct spec_path_info
{
4957 bool separate_options
;
4961 spec_path (char *path
, void *data
)
4963 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
4967 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4970 if (info
->append_len
!= 0)
4972 len
= strlen (path
);
4973 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4976 if (!is_directory (path
, true))
4979 do_spec_1 (info
->option
, 1, NULL
);
4980 if (info
->separate_options
)
4981 do_spec_1 (" ", 0, NULL
);
4983 if (info
->append_len
== 0)
4985 len
= strlen (path
);
4986 save
= path
[len
- 1];
4987 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4988 path
[len
- 1] = '\0';
4991 do_spec_1 (path
, 1, NULL
);
4992 do_spec_1 (" ", 0, NULL
);
4994 /* Must not damage the original path. */
4995 if (info
->append_len
== 0)
4996 path
[len
- 1] = save
;
5001 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
5005 create_at_file (char **argv
)
5007 char *temp_file
= make_temp_file ("");
5008 char *at_argument
= concat ("@", temp_file
, NULL
);
5009 FILE *f
= fopen (temp_file
, "w");
5013 fatal_error ("could not open temporary response file %s",
5016 status
= writeargv (argv
, f
);
5019 fatal_error ("could not write to temporary response file %s",
5022 status
= fclose (f
);
5025 fatal_error ("could not close temporary response file %s",
5028 store_arg (at_argument
, 0, 0);
5030 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
5033 /* True if we should compile INFILE. */
5036 compile_input_file_p (struct infile
*infile
)
5038 if ((!infile
->language
) || (infile
->language
[0] != '*'))
5039 if (infile
->incompiler
== input_file_compiler
)
5044 /* Process the sub-spec SPEC as a portion of a larger spec.
5045 This is like processing a whole spec except that we do
5046 not initialize at the beginning and we do not supply a
5047 newline by default at the end.
5048 INSWITCH nonzero means don't process %-sequences in SPEC;
5049 in this case, % is treated as an ordinary character.
5050 This is used while substituting switches.
5051 INSWITCH nonzero also causes SPC not to terminate an argument.
5053 Value is zero unless a line was finished
5054 and the command on that line reported an error. */
5057 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
5059 const char *p
= spec
;
5065 /* If substituting a switch, treat all chars like letters.
5066 Otherwise, NL, SPC, TAB and % are special. */
5067 switch (inswitch
? 'a' : c
)
5072 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
5074 /* A `|' before the newline means use a pipe here,
5075 but only if -pipe was specified.
5076 Otherwise, execute now and don't pass the `|' as an arg. */
5079 input_from_pipe
= 1;
5086 set_collect_gcc_options ();
5088 if (argbuf_index
> 0)
5094 /* Reinitialize for a new command, and for a new argument. */
5097 delete_this_arg
= 0;
5098 this_is_output_file
= 0;
5099 this_is_library_file
= 0;
5100 this_is_linker_script
= 0;
5101 input_from_pipe
= 0;
5108 obstack_1grow (&obstack
, c
);
5116 /* Reinitialize for a new argument. */
5117 delete_this_arg
= 0;
5118 this_is_output_file
= 0;
5119 this_is_library_file
= 0;
5120 this_is_linker_script
= 0;
5127 fatal_error ("spec '%s' invalid", spec
);
5130 if (save_temps_length
)
5131 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5133 obstack_grow (&obstack
, input_basename
, basename_length
);
5134 if (compare_debug
< 0)
5135 obstack_grow (&obstack
, ".gk", 3);
5140 if (save_temps_length
)
5141 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5143 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
5144 if (compare_debug
< 0)
5145 obstack_grow (&obstack
, ".gk", 3);
5150 delete_this_arg
= 2;
5153 /* Dump out the directories specified with LIBRARY_PATH,
5154 followed by the absolute directories
5155 that we search for startfiles. */
5158 struct spec_path_info info
;
5161 info
.append_len
= 0;
5162 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
5163 /* Used on systems which record the specified -L dirs
5164 and use them to search for dynamic linking.
5165 Relative directories always come from -B,
5166 and it is better not to use them for searching
5167 at run time. In particular, stage1 loses. */
5168 info
.omit_relative
= true;
5170 info
.omit_relative
= false;
5172 info
.separate_options
= false;
5174 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
5179 /* %efoo means report an error with `foo' as error message
5180 and don't execute any more commands for this file. */
5184 while (*p
!= 0 && *p
!= '\n')
5186 buf
= (char *) alloca (p
- q
+ 1);
5187 strncpy (buf
, q
, p
- q
);
5189 error ("%s", _(buf
));
5194 /* %nfoo means report a notice with `foo' on stderr. */
5198 while (*p
!= 0 && *p
!= '\n')
5200 buf
= (char *) alloca (p
- q
+ 1);
5201 strncpy (buf
, q
, p
- q
);
5203 inform (0, "%s", _(buf
));
5213 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
5214 defined, and it is not a directory, and it is
5215 writable, use it. Otherwise, treat this like any
5216 other temporary file. */
5218 if ((!save_temps_flag
)
5219 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
5220 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
5222 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
5223 strlen (HOST_BIT_BUCKET
));
5224 delete_this_arg
= 0;
5229 goto create_temp_file
;
5233 obstack_1grow (&obstack
, '-');
5234 delete_this_arg
= 0;
5237 /* consume suffix */
5238 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5240 if (p
[0] == '%' && p
[1] == 'O')
5245 goto create_temp_file
;
5249 /* consume suffix */
5250 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5252 if (p
[0] == '%' && p
[1] == 'O')
5257 goto create_temp_file
;
5263 struct temp_name
*t
;
5265 const char *suffix
= p
;
5266 char *saved_suffix
= NULL
;
5268 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5270 suffix_length
= p
- suffix
;
5271 if (p
[0] == '%' && p
[1] == 'O')
5274 /* We don't support extra suffix characters after %O. */
5275 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
5276 fatal_error ("spec '%s' has invalid '%%0%c'", spec
, *p
);
5277 if (suffix_length
== 0)
5278 suffix
= TARGET_OBJECT_SUFFIX
;
5282 = XNEWVEC (char, suffix_length
5283 + strlen (TARGET_OBJECT_SUFFIX
));
5284 strncpy (saved_suffix
, suffix
, suffix_length
);
5285 strcpy (saved_suffix
+ suffix_length
,
5286 TARGET_OBJECT_SUFFIX
);
5288 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
5291 if (compare_debug
< 0)
5293 suffix
= concat (".gk", suffix
, NULL
);
5297 /* If -save-temps=obj and -o were specified, use that for the
5299 if (save_temps_length
)
5302 temp_filename_length
5303 = save_temps_length
+ suffix_length
+ 1;
5304 tmp
= (char *) alloca (temp_filename_length
);
5305 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
5306 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
5307 tmp
[save_temps_length
+ suffix_length
] = '\0';
5308 temp_filename
= save_string (tmp
,
5309 temp_filename_length
+ 1);
5310 obstack_grow (&obstack
, temp_filename
,
5311 temp_filename_length
);
5313 delete_this_arg
= 0;
5317 /* If the gcc_input_filename has the same suffix specified
5318 for the %g, %u, or %U, and -save-temps is specified,
5319 we could end up using that file as an intermediate
5320 thus clobbering the user's source file (.e.g.,
5321 gcc -save-temps foo.s would clobber foo.s with the
5322 output of cpp0). So check for this condition and
5323 generate a temp file as the intermediate. */
5325 if (save_temps_flag
)
5328 temp_filename_length
= basename_length
+ suffix_length
+ 1;
5329 tmp
= (char *) alloca (temp_filename_length
);
5330 memcpy (tmp
, input_basename
, basename_length
);
5331 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
5332 tmp
[basename_length
+ suffix_length
] = '\0';
5333 temp_filename
= tmp
;
5335 if (strcmp (temp_filename
, gcc_input_filename
) != 0)
5337 #ifndef HOST_LACKS_INODE_NUMBERS
5338 struct stat st_temp
;
5340 /* Note, set_input() resets input_stat_set to 0. */
5341 if (input_stat_set
== 0)
5343 input_stat_set
= stat (gcc_input_filename
,
5345 if (input_stat_set
>= 0)
5349 /* If we have the stat for the gcc_input_filename
5350 and we can do the stat for the temp_filename
5351 then the they could still refer to the same
5352 file if st_dev/st_ino's are the same. */
5353 if (input_stat_set
!= 1
5354 || stat (temp_filename
, &st_temp
) < 0
5355 || input_stat
.st_dev
!= st_temp
.st_dev
5356 || input_stat
.st_ino
!= st_temp
.st_ino
)
5358 /* Just compare canonical pathnames. */
5359 char* input_realname
= lrealpath (gcc_input_filename
);
5360 char* temp_realname
= lrealpath (temp_filename
);
5361 bool files_differ
= strcmp (input_realname
, temp_realname
);
5362 free (input_realname
);
5363 free (temp_realname
);
5367 temp_filename
= save_string (temp_filename
,
5368 temp_filename_length
+ 1);
5369 obstack_grow (&obstack
, temp_filename
,
5370 temp_filename_length
);
5372 delete_this_arg
= 0;
5378 /* See if we already have an association of %g/%u/%U and
5380 for (t
= temp_names
; t
; t
= t
->next
)
5381 if (t
->length
== suffix_length
5382 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
5383 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
5386 /* Make a new association if needed. %u and %j
5388 if (t
== 0 || c
== 'u' || c
== 'j')
5392 t
= XNEW (struct temp_name
);
5393 t
->next
= temp_names
;
5396 t
->length
= suffix_length
;
5399 t
->suffix
= saved_suffix
;
5400 saved_suffix
= NULL
;
5403 t
->suffix
= save_string (suffix
, suffix_length
);
5404 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
5405 temp_filename
= make_temp_file (t
->suffix
);
5406 temp_filename_length
= strlen (temp_filename
);
5407 t
->filename
= temp_filename
;
5408 t
->filename_length
= temp_filename_length
;
5412 free (saved_suffix
);
5414 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
5415 delete_this_arg
= 1;
5423 if (at_file_supplied
)
5425 /* We are going to expand `%i' to `@FILE', where FILE
5426 is a newly-created temporary filename. The filenames
5427 that would usually be expanded in place of %o will be
5428 written to the temporary file. */
5433 for (i
= 0; i
< n_infiles
; i
++)
5434 if (compile_input_file_p (&infiles
[i
]))
5437 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5439 /* Copy the strings over. */
5440 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
5441 if (compile_input_file_p (&infiles
[i
]))
5443 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
5444 infiles
[i
].compiled
= true;
5449 create_at_file (argv
);
5452 for (i
= 0; (int) i
< n_infiles
; i
++)
5453 if (compile_input_file_p (&infiles
[i
]))
5455 store_arg (infiles
[i
].name
, 0, 0);
5456 infiles
[i
].compiled
= true;
5461 obstack_grow (&obstack
, gcc_input_filename
,
5462 input_filename_length
);
5469 struct spec_path_info info
;
5473 do_spec_1 ("-imultilib", 1, NULL
);
5474 /* Make this a separate argument. */
5475 do_spec_1 (" ", 0, NULL
);
5476 do_spec_1 (multilib_dir
, 1, NULL
);
5477 do_spec_1 (" ", 0, NULL
);
5480 if (gcc_exec_prefix
)
5482 do_spec_1 ("-iprefix", 1, NULL
);
5483 /* Make this a separate argument. */
5484 do_spec_1 (" ", 0, NULL
);
5485 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5486 do_spec_1 (" ", 0, NULL
);
5489 if (target_system_root_changed
||
5490 (target_system_root
&& target_sysroot_hdrs_suffix
))
5492 do_spec_1 ("-isysroot", 1, NULL
);
5493 /* Make this a separate argument. */
5494 do_spec_1 (" ", 0, NULL
);
5495 do_spec_1 (target_system_root
, 1, NULL
);
5496 if (target_sysroot_hdrs_suffix
)
5497 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5498 do_spec_1 (" ", 0, NULL
);
5501 info
.option
= "-isystem";
5502 info
.append
= "include";
5503 info
.append_len
= strlen (info
.append
);
5504 info
.omit_relative
= false;
5505 info
.separate_options
= true;
5507 for_each_path (&include_prefixes
, false, info
.append_len
,
5510 info
.append
= "include-fixed";
5511 if (*sysroot_hdrs_suffix_spec
)
5512 info
.append
= concat (info
.append
, dir_separator_str
,
5513 multilib_dir
, NULL
);
5514 info
.append_len
= strlen (info
.append
);
5515 for_each_path (&include_prefixes
, false, info
.append_len
,
5522 int max
= n_infiles
;
5523 max
+= lang_specific_extra_outfiles
;
5525 if (HAVE_GNU_LD
&& at_file_supplied
)
5527 /* We are going to expand `%o' to `@FILE', where FILE
5528 is a newly-created temporary filename. The filenames
5529 that would usually be expanded in place of %o will be
5530 written to the temporary file. */
5535 /* Convert OUTFILES into a form suitable for writeargv. */
5537 /* Determine how many are non-NULL. */
5538 for (n_files
= 0, i
= 0; i
< max
; i
++)
5539 n_files
+= outfiles
[i
] != NULL
;
5541 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5543 /* Copy the strings over. */
5544 for (i
= 0, j
= 0; i
< max
; i
++)
5547 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5552 create_at_file (argv
);
5555 for (i
= 0; i
< max
; i
++)
5557 store_arg (outfiles
[i
], 0, 0);
5562 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5567 this_is_library_file
= 1;
5571 this_is_linker_script
= 1;
5575 outfiles
[input_file_number
] = NULL
;
5579 this_is_output_file
= 1;
5584 int cur_index
= argbuf_index
;
5585 /* Handle the {...} following the %W. */
5587 fatal_error ("spec '%s' has invalid '%%W%c", spec
, *p
);
5588 p
= handle_braces (p
+ 1);
5592 /* If any args were output, mark the last one for deletion
5594 if (argbuf_index
!= cur_index
)
5595 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
5599 /* %x{OPTION} records OPTION for %X to output. */
5605 /* Skip past the option value and make a copy. */
5607 fatal_error ("spec '%s' has invalid '%%x%c'", spec
, *p
);
5610 string
= save_string (p1
+ 1, p
- p1
- 2);
5612 /* See if we already recorded this option. */
5613 for (i
= 0; i
< n_linker_options
; i
++)
5614 if (! strcmp (string
, linker_options
[i
]))
5620 /* This option is new; add it. */
5621 add_linker_option (string
, strlen (string
));
5625 /* Dump out the options accumulated previously using %x. */
5627 for (i
= 0; i
< n_linker_options
; i
++)
5629 do_spec_1 (linker_options
[i
], 1, NULL
);
5630 /* Make each accumulated option a separate argument. */
5631 do_spec_1 (" ", 0, NULL
);
5635 /* Dump out the options accumulated previously using -Wa,. */
5637 for (i
= 0; i
< n_assembler_options
; i
++)
5639 do_spec_1 (assembler_options
[i
], 1, NULL
);
5640 /* Make each accumulated option a separate argument. */
5641 do_spec_1 (" ", 0, NULL
);
5645 /* Dump out the options accumulated previously using -Wp,. */
5647 for (i
= 0; i
< n_preprocessor_options
; i
++)
5649 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
5650 /* Make each accumulated option a separate argument. */
5651 do_spec_1 (" ", 0, NULL
);
5655 /* Here are digits and numbers that just process
5656 a certain constant string as a spec. */
5659 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5665 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5671 value
= do_spec_1 (asm_spec
, 0, NULL
);
5677 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5684 const char *const spec
5685 = (input_file_compiler
->cpp_spec
5686 ? input_file_compiler
->cpp_spec
5688 value
= do_spec_1 (spec
, 0, NULL
);
5695 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5701 value
= do_spec_1 (link_spec
, 0, NULL
);
5707 value
= do_spec_1 (lib_spec
, 0, NULL
);
5713 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5719 /* We assume there is a directory
5720 separator at the end of this string. */
5721 if (target_system_root
)
5723 obstack_grow (&obstack
, target_system_root
,
5724 strlen (target_system_root
));
5725 if (target_sysroot_suffix
)
5726 obstack_grow (&obstack
, target_sysroot_suffix
,
5727 strlen (target_sysroot_suffix
));
5732 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5737 /* Here we define characters other than letters and digits. */
5740 p
= handle_braces (p
);
5746 p
= handle_spec_function (p
);
5752 obstack_1grow (&obstack
, '%');
5759 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5761 suffix_subst
= save_string (p
- 1, len
+ 1);
5766 /* Henceforth ignore the option(s) matching the pattern
5771 int have_wildcard
= 0;
5774 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5777 if (p
[len
-1] == '*')
5780 for (i
= 0; i
< n_switches
; i
++)
5781 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5782 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5784 switches
[i
].live_cond
|= SWITCH_IGNORE
;
5785 switches
[i
].validated
= 1;
5793 if (soft_matched_part
)
5795 do_spec_1 (soft_matched_part
, 1, NULL
);
5796 do_spec_1 (" ", 0, NULL
);
5799 /* Catch the case where a spec string contains something like
5800 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5801 hand side of the :. */
5802 error ("spec failure: '%%*' has not been initialized by pattern match");
5805 /* Process a string found as the value of a spec given by name.
5806 This feature allows individual machine descriptions
5807 to add and use their own specs.
5808 %[...] modifies -D options the way %P does;
5809 %(...) uses the spec unmodified. */
5811 warning (0, "use of obsolete %%[ operator in specs");
5814 const char *name
= p
;
5815 struct spec_list
*sl
;
5818 /* The string after the S/P is the name of a spec that is to be
5820 while (*p
&& *p
!= ')' && *p
!= ']')
5823 /* See if it's in the list. */
5824 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5825 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5827 name
= *(sl
->ptr_spec
);
5829 fnotice (stderr
, "Processing spec %c%s%c, which is '%s'\n",
5830 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5839 value
= do_spec_1 (name
, 0, NULL
);
5845 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
5847 const char *y
= name
;
5850 /* Copy all of NAME into BUF, but put __ after
5851 every -D and at the end of each arg. */
5854 if (! strncmp (y
, "-D", 2))
5865 && (*y
== ' ' || *y
== '\t' || *y
== '='
5866 || *y
== '}' || *y
== 0))
5879 value
= do_spec_1 (buf
, 0, NULL
);
5885 /* Discard the closing paren or bracket. */
5892 error ("spec failure: unrecognized spec option '%c'", c
);
5898 /* Backslash: treat next character as ordinary. */
5903 /* Ordinary character: put it into the current argument. */
5904 obstack_1grow (&obstack
, c
);
5908 /* End of string. If we are processing a spec function, we need to
5909 end any pending argument. */
5910 if (processing_spec_function
)
5916 /* Look up a spec function. */
5918 static const struct spec_function
*
5919 lookup_spec_function (const char *name
)
5921 const struct spec_function
*sf
;
5923 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5924 if (strcmp (sf
->name
, name
) == 0)
5930 /* Evaluate a spec function. */
5933 eval_spec_function (const char *func
, const char *args
)
5935 const struct spec_function
*sf
;
5936 const char *funcval
;
5938 /* Saved spec processing context. */
5939 int save_argbuf_index
;
5940 int save_argbuf_length
;
5941 const char **save_argbuf
;
5944 int save_delete_this_arg
;
5945 int save_this_is_output_file
;
5946 int save_this_is_library_file
;
5947 int save_input_from_pipe
;
5948 int save_this_is_linker_script
;
5949 const char *save_suffix_subst
;
5952 sf
= lookup_spec_function (func
);
5954 fatal_error ("unknown spec function '%s'", func
);
5956 /* Push the spec processing context. */
5957 save_argbuf_index
= argbuf_index
;
5958 save_argbuf_length
= argbuf_length
;
5959 save_argbuf
= argbuf
;
5961 save_arg_going
= arg_going
;
5962 save_delete_this_arg
= delete_this_arg
;
5963 save_this_is_output_file
= this_is_output_file
;
5964 save_this_is_library_file
= this_is_library_file
;
5965 save_this_is_linker_script
= this_is_linker_script
;
5966 save_input_from_pipe
= input_from_pipe
;
5967 save_suffix_subst
= suffix_subst
;
5969 /* Create a new spec processing context, and build the function
5973 if (do_spec_2 (args
) < 0)
5974 fatal_error ("error in args to spec function '%s'", func
);
5976 /* argbuf_index is an index for the next argument to be inserted, and
5977 so contains the count of the args already inserted. */
5979 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5981 /* Pop the spec processing context. */
5982 argbuf_index
= save_argbuf_index
;
5983 argbuf_length
= save_argbuf_length
;
5985 argbuf
= save_argbuf
;
5987 arg_going
= save_arg_going
;
5988 delete_this_arg
= save_delete_this_arg
;
5989 this_is_output_file
= save_this_is_output_file
;
5990 this_is_library_file
= save_this_is_library_file
;
5991 this_is_linker_script
= save_this_is_linker_script
;
5992 input_from_pipe
= save_input_from_pipe
;
5993 suffix_subst
= save_suffix_subst
;
5998 /* Handle a spec function call of the form:
6002 ARGS is processed as a spec in a separate context and split into an
6003 argument vector in the normal fashion. The function returns a string
6004 containing a spec which we then process in the caller's context, or
6005 NULL if no processing is required. */
6008 handle_spec_function (const char *p
)
6011 const char *endp
, *funcval
;
6014 processing_spec_function
++;
6016 /* Get the function name. */
6017 for (endp
= p
; *endp
!= '\0'; endp
++)
6019 if (*endp
== '(') /* ) */
6021 /* Only allow [A-Za-z0-9], -, and _ in function names. */
6022 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
6023 fatal_error ("malformed spec function name");
6025 if (*endp
!= '(') /* ) */
6026 fatal_error ("no arguments for spec function");
6027 func
= save_string (p
, endp
- p
);
6030 /* Get the arguments. */
6031 for (count
= 0; *endp
!= '\0'; endp
++)
6040 else if (*endp
== '(') /* ) */
6045 fatal_error ("malformed spec function arguments");
6046 args
= save_string (p
, endp
- p
);
6049 /* p now points to just past the end of the spec function expression. */
6051 funcval
= eval_spec_function (func
, args
);
6052 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
6058 processing_spec_function
--;
6063 /* Inline subroutine of handle_braces. Returns true if the current
6064 input suffix matches the atom bracketed by ATOM and END_ATOM. */
6066 input_suffix_matches (const char *atom
, const char *end_atom
)
6068 return (input_suffix
6069 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
6070 && input_suffix
[end_atom
- atom
] == '\0');
6073 /* Subroutine of handle_braces. Returns true if the current
6074 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
6076 input_spec_matches (const char *atom
, const char *end_atom
)
6078 return (input_file_compiler
6079 && input_file_compiler
->suffix
6080 && input_file_compiler
->suffix
[0] != '\0'
6081 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
6083 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
6086 /* Subroutine of handle_braces. Returns true if a switch
6087 matching the atom bracketed by ATOM and END_ATOM appeared on the
6090 switch_matches (const char *atom
, const char *end_atom
, int starred
)
6093 int len
= end_atom
- atom
;
6094 int plen
= starred
? len
: -1;
6096 for (i
= 0; i
< n_switches
; i
++)
6097 if (!strncmp (switches
[i
].part1
, atom
, len
)
6098 && (starred
|| switches
[i
].part1
[len
] == '\0')
6099 && check_live_switch (i
, plen
))
6105 /* Inline subroutine of handle_braces. Mark all of the switches which
6106 match ATOM (extends to END_ATOM; STARRED indicates whether there
6107 was a star after the atom) for later processing. */
6109 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
6112 int len
= end_atom
- atom
;
6113 int plen
= starred
? len
: -1;
6115 for (i
= 0; i
< n_switches
; i
++)
6116 if (!strncmp (switches
[i
].part1
, atom
, len
)
6117 && (starred
|| switches
[i
].part1
[len
] == '\0')
6118 && check_live_switch (i
, plen
))
6119 switches
[i
].ordering
= 1;
6122 /* Inline subroutine of handle_braces. Process all the currently
6123 marked switches through give_switch, and clear the marks. */
6125 process_marked_switches (void)
6129 for (i
= 0; i
< n_switches
; i
++)
6130 if (switches
[i
].ordering
== 1)
6132 switches
[i
].ordering
= 0;
6137 /* Handle a %{ ... } construct. P points just inside the leading {.
6138 Returns a pointer one past the end of the brace block, or 0
6139 if we call do_spec_1 and that returns -1. */
6142 handle_braces (const char *p
)
6144 const char *atom
, *end_atom
;
6145 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
6146 const char *orig
= p
;
6154 bool a_must_be_last
= false;
6155 bool ordered_set
= false;
6156 bool disjunct_set
= false;
6157 bool disj_matched
= false;
6158 bool disj_starred
= true;
6159 bool n_way_choice
= false;
6160 bool n_way_matched
= false;
6162 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6169 /* Scan one "atom" (S in the description above of %{}, possibly
6170 with '!', '.', '@', ',', or '*' modifiers). */
6172 a_is_suffix
= false;
6173 a_is_starred
= false;
6174 a_is_negated
= false;
6175 a_is_spectype
= false;
6179 p
++, a_is_negated
= true;
6183 p
++, a_is_suffix
= true;
6185 p
++, a_is_spectype
= true;
6188 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
6189 || *p
== ',' || *p
== '.' || *p
== '@')
6194 p
++, a_is_starred
= 1;
6200 /* Substitute the switch(es) indicated by the current atom. */
6202 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
6203 || a_is_spectype
|| atom
== end_atom
)
6206 mark_matching_switches (atom
, end_atom
, a_is_starred
);
6209 process_marked_switches ();
6213 /* Substitute some text if the current atom appears as a switch
6215 disjunct_set
= true;
6219 if (atom
== end_atom
)
6221 if (!n_way_choice
|| disj_matched
|| *p
== '|'
6222 || a_is_negated
|| a_is_suffix
|| a_is_spectype
6226 /* An empty term may appear as the last choice of an
6227 N-way choice set; it means "otherwise". */
6228 a_must_be_last
= true;
6229 disj_matched
= !n_way_matched
;
6230 disj_starred
= false;
6234 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
6238 disj_starred
= false;
6240 /* Don't bother testing this atom if we already have a
6242 if (!disj_matched
&& !n_way_matched
)
6245 a_matched
= input_suffix_matches (atom
, end_atom
);
6246 else if (a_is_spectype
)
6247 a_matched
= input_spec_matches (atom
, end_atom
);
6249 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
6251 if (a_matched
!= a_is_negated
)
6253 disj_matched
= true;
6255 d_end_atom
= end_atom
;
6262 /* Found the body, that is, the text to substitute if the
6263 current disjunction matches. */
6264 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
6265 disj_matched
&& !n_way_matched
);
6269 /* If we have an N-way choice, reset state for the next
6273 n_way_choice
= true;
6274 n_way_matched
|= disj_matched
;
6275 disj_matched
= false;
6276 disj_starred
= true;
6277 d_atom
= d_end_atom
= NULL
;
6286 while (*p
++ != '}');
6291 fatal_error ("braced spec '%s' is invalid at '%c'", orig
, *p
);
6296 /* Subroutine of handle_braces. Scan and process a brace substitution body
6297 (X in the description of %{} syntax). P points one past the colon;
6298 ATOM and END_ATOM bracket the first atom which was found to be true
6299 (present) in the current disjunction; STARRED indicates whether all
6300 the atoms in the current disjunction were starred (for syntax validation);
6301 MATCHED indicates whether the disjunction matched or not, and therefore
6302 whether or not the body is to be processed through do_spec_1 or just
6303 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6307 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
6308 int starred
, int matched
)
6310 const char *body
, *end_body
;
6311 unsigned int nesting_level
;
6312 bool have_subst
= false;
6314 /* Locate the closing } or ;, honoring nested braces.
6315 Trim trailing whitespace. */
6324 if (!--nesting_level
)
6327 else if (*p
== ';' && nesting_level
== 1)
6329 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
6331 else if (*p
== '\0')
6337 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
6340 if (have_subst
&& !starred
)
6345 /* Copy the substitution body to permanent storage and execute it.
6346 If have_subst is false, this is a simple matter of running the
6347 body through do_spec_1... */
6348 char *string
= save_string (body
, end_body
- body
);
6351 if (do_spec_1 (string
, 0, NULL
) < 0)
6356 /* ... but if have_subst is true, we have to process the
6357 body once for each matching switch, with %* set to the
6358 variant part of the switch. */
6359 unsigned int hard_match_len
= end_atom
- atom
;
6362 for (i
= 0; i
< n_switches
; i
++)
6363 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
6364 && check_live_switch (i
, hard_match_len
))
6366 if (do_spec_1 (string
, 0,
6367 &switches
[i
].part1
[hard_match_len
]) < 0)
6369 /* Pass any arguments this switch has. */
6371 suffix_subst
= NULL
;
6379 fatal_error ("braced spec body '%s' is invalid", body
);
6382 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6383 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6384 spec, or -1 if either exact match or %* is used.
6386 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
6387 whose value does not begin with "no-" is obsoleted by the same value
6388 with the "no-", similarly for a switch with the "no-" prefix. */
6391 check_live_switch (int switchnum
, int prefix_length
)
6393 const char *name
= switches
[switchnum
].part1
;
6396 /* If we already processed this switch and determined if it was
6397 live or not, return our past determination. */
6398 if (switches
[switchnum
].live_cond
!= 0)
6399 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
6400 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
6401 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
6404 /* In the common case of {<at-most-one-letter>*}, a negating
6405 switch would always match, so ignore that case. We will just
6406 send the conflicting switches to the compiler phase. */
6407 if (prefix_length
>= 0 && prefix_length
<= 1)
6410 /* Now search for duplicate in a manner that depends on the name. */
6414 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6415 if (switches
[i
].part1
[0] == 'O')
6417 switches
[switchnum
].validated
= 1;
6418 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6423 case 'W': case 'f': case 'm':
6424 if (! strncmp (name
+ 1, "no-", 3))
6426 /* We have Xno-YYY, search for XYYY. */
6427 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6428 if (switches
[i
].part1
[0] == name
[0]
6429 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6431 switches
[switchnum
].validated
= 1;
6432 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6438 /* We have XYYY, search for Xno-YYY. */
6439 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6440 if (switches
[i
].part1
[0] == name
[0]
6441 && switches
[i
].part1
[1] == 'n'
6442 && switches
[i
].part1
[2] == 'o'
6443 && switches
[i
].part1
[3] == '-'
6444 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6446 switches
[switchnum
].validated
= 1;
6447 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6454 /* Otherwise the switch is live. */
6455 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6459 /* Pass a switch to the current accumulating command
6460 in the same form that we received it.
6461 SWITCHNUM identifies the switch; it is an index into
6462 the vector of switches gcc received, which is `switches'.
6463 This cannot fail since it never finishes a command line.
6465 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6468 give_switch (int switchnum
, int omit_first_word
)
6470 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6473 if (!omit_first_word
)
6475 do_spec_1 ("-", 0, NULL
);
6476 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6479 if (switches
[switchnum
].args
!= 0)
6482 for (p
= switches
[switchnum
].args
; *p
; p
++)
6484 const char *arg
= *p
;
6486 do_spec_1 (" ", 0, NULL
);
6489 unsigned length
= strlen (arg
);
6492 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6493 if (arg
[length
] == '.')
6495 (CONST_CAST(char *, arg
))[length
] = 0;
6499 do_spec_1 (arg
, 1, NULL
);
6501 (CONST_CAST(char *, arg
))[length
] = '.';
6502 do_spec_1 (suffix_subst
, 1, NULL
);
6505 do_spec_1 (arg
, 1, NULL
);
6509 do_spec_1 (" ", 0, NULL
);
6510 switches
[switchnum
].validated
= 1;
6513 /* Search for a file named NAME trying various prefixes including the
6514 user's -B prefix and some standard ones.
6515 Return the absolute file name found. If nothing is found, return NAME. */
6518 find_file (const char *name
)
6520 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
6521 return newname
? newname
: name
;
6524 /* Determine whether a directory exists. If LINKER, return 0 for
6525 certain fixed names not needed by the linker. */
6528 is_directory (const char *path1
, bool linker
)
6535 /* Ensure the string ends with "/.". The resulting path will be a
6536 directory even if the given path is a symbolic link. */
6537 len1
= strlen (path1
);
6538 path
= (char *) alloca (3 + len1
);
6539 memcpy (path
, path1
, len1
);
6541 if (!IS_DIR_SEPARATOR (cp
[-1]))
6542 *cp
++ = DIR_SEPARATOR
;
6546 /* Exclude directories that the linker is known to search. */
6548 && IS_DIR_SEPARATOR (path
[0])
6550 && strncmp (path
+ 1, "lib", 3) == 0)
6552 && strncmp (path
+ 1, "usr", 3) == 0
6553 && IS_DIR_SEPARATOR (path
[4])
6554 && strncmp (path
+ 5, "lib", 3) == 0)))
6557 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6560 /* Set up the various global variables to indicate that we're processing
6561 the input file named FILENAME. */
6564 set_input (const char *filename
)
6568 gcc_input_filename
= filename
;
6569 input_filename_length
= strlen (gcc_input_filename
);
6570 input_basename
= lbasename (gcc_input_filename
);
6572 /* Find a suffix starting with the last period,
6573 and set basename_length to exclude that suffix. */
6574 basename_length
= strlen (input_basename
);
6575 suffixed_basename_length
= basename_length
;
6576 p
= input_basename
+ basename_length
;
6577 while (p
!= input_basename
&& *p
!= '.')
6579 if (*p
== '.' && p
!= input_basename
)
6581 basename_length
= p
- input_basename
;
6582 input_suffix
= p
+ 1;
6587 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6588 we will need to do a stat on the gcc_input_filename. The
6589 INPUT_STAT_SET signals that the stat is needed. */
6593 /* On fatal signals, delete all the temporary files. */
6596 fatal_signal (int signum
)
6598 signal (signum
, SIG_DFL
);
6599 delete_failure_queue ();
6600 delete_temp_files ();
6601 /* Get the same signal again, this time not handled,
6602 so its normal effect occurs. */
6603 kill (getpid (), signum
);
6606 /* Compare the contents of the two files named CMPFILE[0] and
6607 CMPFILE[1]. Return zero if they're identical, nonzero
6611 compare_files (char *cmpfile
[])
6614 FILE *temp
[2] = { NULL
, NULL
};
6620 void *map
[2] = { NULL
, NULL
};
6622 for (i
= 0; i
< 2; i
++)
6626 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
6628 error ("%s: could not determine length of compare-debug file %s",
6629 gcc_input_filename
, cmpfile
[i
]);
6634 length
[i
] = st
.st_size
;
6637 if (!ret
&& length
[0] != length
[1])
6639 error ("%s: -fcompare-debug failure (length)", gcc_input_filename
);
6644 for (i
= 0; i
< 2; i
++)
6646 int fd
= open (cmpfile
[i
], O_RDONLY
);
6649 error ("%s: could not open compare-debug file %s",
6650 gcc_input_filename
, cmpfile
[i
]);
6655 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
6658 if (map
[i
] == (void *) MAP_FAILED
)
6667 if (memcmp (map
[0], map
[1], length
[0]) != 0)
6669 error ("%s: -fcompare-debug failure", gcc_input_filename
);
6674 for (i
= 0; i
< 2; i
++)
6676 munmap ((caddr_t
) map
[i
], length
[i
]);
6685 for (i
= 0; i
< 2; i
++)
6687 temp
[i
] = fopen (cmpfile
[i
], "r");
6690 error ("%s: could not open compare-debug file %s",
6691 gcc_input_filename
, cmpfile
[i
]);
6697 if (!ret
&& temp
[0] && temp
[1])
6701 c0
= fgetc (temp
[0]);
6702 c1
= fgetc (temp
[1]);
6706 error ("%s: -fcompare-debug failure",
6707 gcc_input_filename
);
6716 for (i
= 1; i
>= 0; i
--)
6725 extern int main (int, char **);
6728 main (int argc
, char **argv
)
6732 int linker_was_run
= 0;
6733 int lang_n_infiles
= 0;
6734 int num_linker_inputs
= 0;
6735 char *explicit_link_files
;
6738 struct user_specs
*uptr
;
6739 char **old_argv
= argv
;
6741 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6742 on ?: in file-scope variable initializations. */
6743 asm_debug
= ASM_DEBUG_SPEC
;
6745 p
= argv
[0] + strlen (argv
[0]);
6746 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6750 xmalloc_set_program_name (progname
);
6752 expandargv (&argc
, &argv
);
6754 /* Determine if any expansions were made. */
6755 if (argv
!= old_argv
)
6756 at_file_supplied
= true;
6758 prune_options (&argc
, &argv
);
6760 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6761 /* Perform host dependent initialization when needed. */
6762 GCC_DRIVER_HOST_INITIALIZATION
;
6765 /* Unlock the stdio streams. */
6766 unlock_std_streams ();
6768 gcc_init_libintl ();
6770 diagnostic_initialize (global_dc
, 0);
6771 if (atexit (delete_temp_files
) != 0)
6772 fatal_error ("atexit failed");
6774 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6775 signal (SIGINT
, fatal_signal
);
6777 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6778 signal (SIGHUP
, fatal_signal
);
6780 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6781 signal (SIGTERM
, fatal_signal
);
6783 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6784 signal (SIGPIPE
, fatal_signal
);
6787 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6788 receive the signal. A different setting is inheritable */
6789 signal (SIGCHLD
, SIG_DFL
);
6792 /* Allocate the argument vector. */
6795 obstack_init (&obstack
);
6797 /* Build multilib_select, et. al from the separate lines that make up each
6798 multilib selection. */
6800 const char *const *q
= multilib_raw
;
6803 obstack_init (&multilib_obstack
);
6804 while ((p
= *q
++) != (char *) 0)
6805 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6807 obstack_1grow (&multilib_obstack
, 0);
6808 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6810 q
= multilib_matches_raw
;
6811 while ((p
= *q
++) != (char *) 0)
6812 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6814 obstack_1grow (&multilib_obstack
, 0);
6815 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6817 q
= multilib_exclusions_raw
;
6818 while ((p
= *q
++) != (char *) 0)
6819 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6821 obstack_1grow (&multilib_obstack
, 0);
6822 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6825 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6828 obstack_1grow (&multilib_obstack
, ' ');
6829 obstack_grow (&multilib_obstack
,
6830 multilib_defaults_raw
[i
],
6831 strlen (multilib_defaults_raw
[i
]));
6835 obstack_1grow (&multilib_obstack
, 0);
6836 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6839 #ifdef INIT_ENVIRONMENT
6840 /* Set up any other necessary machine specific environment variables. */
6841 xputenv (INIT_ENVIRONMENT
);
6844 /* Make a table of what switches there are (switches, n_switches).
6845 Make a table of specified input files (infiles, n_infiles).
6846 Decode switches that are handled locally. */
6848 process_command (argc
, CONST_CAST2 (const char **, char **, argv
));
6850 /* Initialize the vector of specs to just the default.
6851 This means one element containing 0s, as a terminator. */
6853 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
6854 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6855 n_compilers
= n_default_compilers
;
6857 /* Read specs from a file if there is one. */
6859 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6860 spec_version
, dir_separator_str
, NULL
);
6861 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6863 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6864 /* Read the specs file unless it is a default one. */
6865 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6866 read_specs (specs_file
, TRUE
);
6870 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6871 for any override of as, ld and libraries. */
6872 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
6873 + strlen (just_machine_suffix
) + sizeof ("specs"));
6875 strcpy (specs_file
, standard_exec_prefix
);
6876 strcat (specs_file
, just_machine_suffix
);
6877 strcat (specs_file
, "specs");
6878 if (access (specs_file
, R_OK
) == 0)
6879 read_specs (specs_file
, TRUE
);
6881 /* Process any configure-time defaults specified for the command line
6882 options, via OPTION_DEFAULT_SPECS. */
6883 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6884 do_option_spec (option_default_specs
[i
].name
,
6885 option_default_specs
[i
].spec
);
6887 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6888 of the command line. */
6890 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6891 do_self_spec (driver_self_specs
[i
]);
6895 enum save_temps save
;
6897 if (!compare_debug_second
)
6899 n_switches_debug_check
[1] = n_switches
;
6900 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
6903 do_self_spec ("%:compare-debug-self-opt()");
6904 n_switches_debug_check
[0] = n_switches
;
6905 switches_debug_check
[0] = switches
;
6907 n_switches
= n_switches_debug_check
[1];
6908 switches
= switches_debug_check
[1];
6911 /* Avoid crash when computing %j in this early. */
6912 save
= save_temps_flag
;
6913 save_temps_flag
= SAVE_TEMPS_NONE
;
6915 compare_debug
= -compare_debug
;
6916 do_self_spec ("%:compare-debug-self-opt()");
6918 save_temps_flag
= save
;
6920 if (!compare_debug_second
)
6922 n_switches_debug_check
[1] = n_switches
;
6923 switches_debug_check
[1] = switches
;
6924 compare_debug
= -compare_debug
;
6925 n_switches
= n_switches_debug_check
[0];
6926 switches
= switches_debug_check
[0];
6930 /* If not cross-compiling, look for executables in the standard
6932 if (*cross_compile
== '0')
6934 if (*md_exec_prefix
)
6936 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6937 PREFIX_PRIORITY_LAST
, 0, 0);
6941 /* Process sysroot_suffix_spec. */
6942 if (*sysroot_suffix_spec
!= 0
6943 && do_spec_2 (sysroot_suffix_spec
) == 0)
6945 if (argbuf_index
> 1)
6946 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6947 else if (argbuf_index
== 1)
6948 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6951 #ifdef HAVE_LD_SYSROOT
6952 /* Pass the --sysroot option to the linker, if it supports that. If
6953 there is a sysroot_suffix_spec, it has already been processed by
6954 this point, so target_system_root really is the system root we
6956 if (target_system_root
)
6958 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6959 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6960 set_spec ("link", XOBFINISH (&obstack
, const char *));
6964 /* Process sysroot_hdrs_suffix_spec. */
6965 if (*sysroot_hdrs_suffix_spec
!= 0
6966 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6968 if (argbuf_index
> 1)
6969 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6970 else if (argbuf_index
== 1)
6971 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6974 /* Look for startfiles in the standard places. */
6975 if (*startfile_prefix_spec
!= 0
6976 && do_spec_2 (startfile_prefix_spec
) == 0
6977 && do_spec_1 (" ", 0, NULL
) == 0)
6980 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6981 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6982 PREFIX_PRIORITY_LAST
, 0, 1);
6984 /* We should eventually get rid of all these and stick to
6985 startfile_prefix_spec exclusively. */
6986 else if (*cross_compile
== '0' || target_system_root
)
6988 if (*md_startfile_prefix
)
6989 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6990 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6992 if (*md_startfile_prefix_1
)
6993 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6994 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6996 /* If standard_startfile_prefix is relative, base it on
6997 standard_exec_prefix. This lets us move the installed tree
6998 as a unit. If GCC_EXEC_PREFIX is defined, base
6999 standard_startfile_prefix on that as well.
7001 If the prefix is relative, only search it for native compilers;
7002 otherwise we will search a directory containing host libraries. */
7003 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
7004 add_sysrooted_prefix (&startfile_prefixes
,
7005 standard_startfile_prefix
, "BINUTILS",
7006 PREFIX_PRIORITY_LAST
, 0, 1);
7007 else if (*cross_compile
== '0')
7009 add_prefix (&startfile_prefixes
,
7010 concat (gcc_exec_prefix
7011 ? gcc_exec_prefix
: standard_exec_prefix
,
7013 standard_startfile_prefix
, NULL
),
7014 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
7017 /* Sysrooted prefixes are relocated because target_system_root is
7018 also relocated by gcc_exec_prefix. */
7019 if (*standard_startfile_prefix_1
)
7020 add_sysrooted_prefix (&startfile_prefixes
,
7021 standard_startfile_prefix_1
, "BINUTILS",
7022 PREFIX_PRIORITY_LAST
, 0, 1);
7023 if (*standard_startfile_prefix_2
)
7024 add_sysrooted_prefix (&startfile_prefixes
,
7025 standard_startfile_prefix_2
, "BINUTILS",
7026 PREFIX_PRIORITY_LAST
, 0, 1);
7029 /* Process any user specified specs in the order given on the command
7031 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
7033 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
7035 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
7038 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
7039 if (gcc_exec_prefix
)
7040 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
7041 spec_version
, dir_separator_str
, NULL
);
7043 /* Now we have the specs.
7044 Set the `valid' bits for switches that match anything in any spec. */
7046 validate_all_switches ();
7048 /* Now that we have the switches and the specs, set
7049 the subdirectory based on the options. */
7050 set_multilib_dir ();
7052 /* Set up to remember the pathname of gcc and any options
7053 needed for collect. We use argv[0] instead of progname because
7054 we need the complete pathname. */
7055 obstack_init (&collect_obstack
);
7056 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
7057 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
7058 xputenv (XOBFINISH (&collect_obstack
, char *));
7060 /* Set up to remember the pathname of the lto wrapper. */
7062 lto_wrapper_spec
= find_a_file (&exec_prefixes
, "lto-wrapper", X_OK
, false);
7063 if (lto_wrapper_spec
)
7065 obstack_init (&collect_obstack
);
7066 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
7067 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
7068 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
7069 strlen (lto_wrapper_spec
) + 1);
7070 xputenv (XOBFINISH (&collect_obstack
, char *));
7073 /* Warn about any switches that no pass was interested in. */
7075 for (i
= 0; (int) i
< n_switches
; i
++)
7076 if (! switches
[i
].validated
)
7077 error ("unrecognized option '-%s'", switches
[i
].part1
);
7079 /* Obey some of the options. */
7081 if (print_search_dirs
)
7083 printf (_("install: %s%s\n"),
7084 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
7085 gcc_exec_prefix
? "" : machine_suffix
);
7086 printf (_("programs: %s\n"),
7087 build_search_list (&exec_prefixes
, "", false, false));
7088 printf (_("libraries: %s\n"),
7089 build_search_list (&startfile_prefixes
, "", false, true));
7093 if (print_file_name
)
7095 printf ("%s\n", find_file (print_file_name
));
7099 if (print_prog_name
)
7101 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
7102 printf ("%s\n", (newname
? newname
: print_prog_name
));
7106 if (print_multi_lib
)
7108 print_multilib_info ();
7112 if (print_multi_directory
)
7114 if (multilib_dir
== NULL
)
7117 printf ("%s\n", multilib_dir
);
7123 if (target_system_root
)
7125 if (target_sysroot_suffix
)
7126 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
7128 printf ("%s\n", target_system_root
);
7133 if (print_multi_os_directory
)
7135 if (multilib_os_dir
== NULL
)
7138 printf ("%s\n", multilib_os_dir
);
7142 if (print_sysroot_headers_suffix
)
7144 if (*sysroot_hdrs_suffix_spec
)
7146 printf("%s\n", (target_sysroot_hdrs_suffix
7147 ? target_sysroot_hdrs_suffix
7152 /* The error status indicates that only one set of fixed
7153 headers should be built. */
7154 fatal_error ("not configured with sysroot headers suffix");
7157 if (print_help_list
)
7163 printf (_("\nFor bug reporting instructions, please see:\n"));
7164 printf ("%s.\n", bug_report_url
);
7169 /* We do not exit here. Instead we have created a fake input file
7170 called 'help-dummy' which needs to be compiled, and we pass this
7171 on the various sub-processes, along with the --help switch.
7172 Ensure their output appears after ours. */
7173 fputc ('\n', stdout
);
7179 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
7181 printf ("Copyright %s 2010 Free Software Foundation, Inc.\n",
7183 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
7184 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
7189 /* We do not exit here. We use the same mechanism of --help to print
7190 the version of the sub-processes. */
7191 fputc ('\n', stdout
);
7200 fnotice (stderr
, "Target: %s\n", spec_machine
);
7201 fnotice (stderr
, "Configured with: %s\n", configuration_arguments
);
7203 #ifdef THREAD_MODEL_SPEC
7204 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
7205 but there's no point in doing all this processing just to get
7206 thread_model back. */
7207 obstack_init (&obstack
);
7208 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
7209 obstack_1grow (&obstack
, '\0');
7210 thrmod
= XOBFINISH (&obstack
, const char *);
7212 thrmod
= thread_model
;
7215 fnotice (stderr
, "Thread model: %s\n", thrmod
);
7217 /* compiler_version is truncated at the first space when initialized
7218 from version string, so truncate version_string at the first space
7219 before comparing. */
7220 for (n
= 0; version_string
[n
]; n
++)
7221 if (version_string
[n
] == ' ')
7224 if (! strncmp (version_string
, compiler_version
, n
)
7225 && compiler_version
[n
] == 0)
7226 fnotice (stderr
, "gcc version %s %s\n", version_string
,
7229 fnotice (stderr
, "gcc driver version %s %sexecuting gcc version %s\n",
7230 version_string
, pkgversion_string
, compiler_version
);
7236 if (n_infiles
== added_libraries
)
7237 fatal_error ("no input files");
7239 /* Make a place to record the compiler output file names
7240 that correspond to the input files. */
7243 i
+= lang_specific_extra_outfiles
;
7244 outfiles
= XCNEWVEC (const char *, i
);
7246 /* Record which files were specified explicitly as link input. */
7248 explicit_link_files
= XCNEWVEC (char, n_infiles
);
7251 combine_inputs
= true;
7253 combine_inputs
= false;
7255 for (i
= 0; (int) i
< n_infiles
; i
++)
7257 const char *name
= infiles
[i
].name
;
7258 struct compiler
*compiler
= lookup_compiler (name
,
7260 infiles
[i
].language
);
7262 if (compiler
&& !(compiler
->combinable
))
7263 combine_inputs
= false;
7265 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
7266 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
7267 infiles
[i
].incompiler
= compiler
;
7271 input_file_compiler
= compiler
;
7272 infiles
[i
].incompiler
= compiler
;
7276 /* Since there is no compiler for this input file, assume it is a
7278 explicit_link_files
[i
] = 1;
7279 infiles
[i
].incompiler
= NULL
;
7281 infiles
[i
].compiled
= false;
7282 infiles
[i
].preprocessed
= false;
7285 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
7286 fatal_error ("cannot specify -o with -c, -S or -E with multiple files");
7288 if (combine_flag
&& save_temps_flag
)
7290 bool save_combine_inputs
= combine_inputs
;
7291 /* Must do a separate pre-processing pass for C & Objective-C files, to
7292 obtain individual .i files. */
7294 combine_inputs
= false;
7295 for (i
= 0; (int) i
< n_infiles
; i
++)
7297 int this_file_error
= 0;
7299 input_file_number
= i
;
7300 set_input (infiles
[i
].name
);
7301 if (infiles
[i
].incompiler
7302 && (infiles
[i
].incompiler
)->needs_preprocessing
)
7303 input_file_compiler
= infiles
[i
].incompiler
;
7307 if (input_file_compiler
)
7309 if (input_file_compiler
->spec
[0] == '#')
7311 error ("%s: %s compiler not installed on this system",
7312 gcc_input_filename
, &input_file_compiler
->spec
[1]);
7313 this_file_error
= 1;
7317 value
= do_spec (input_file_compiler
->spec
);
7318 infiles
[i
].preprocessed
= true;
7319 if (!have_o_argbuf_index
)
7320 fatal_error ("spec '%s' is invalid",
7321 input_file_compiler
->spec
);
7322 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
7323 infiles
[i
].incompiler
7324 = lookup_compiler (infiles
[i
].name
,
7325 strlen (infiles
[i
].name
),
7326 infiles
[i
].language
);
7329 this_file_error
= 1;
7333 if (this_file_error
)
7335 delete_failure_queue ();
7339 clear_failure_queue ();
7341 combine_inputs
= save_combine_inputs
;
7344 for (i
= 0; (int) i
< n_infiles
; i
++)
7346 int this_file_error
= 0;
7348 /* Tell do_spec what to substitute for %i. */
7350 input_file_number
= i
;
7351 set_input (infiles
[i
].name
);
7353 if (infiles
[i
].compiled
)
7356 /* Use the same thing in %o, unless cp->spec says otherwise. */
7358 outfiles
[i
] = gcc_input_filename
;
7360 /* Figure out which compiler from the file's suffix. */
7362 if (! combine_inputs
)
7364 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
7365 infiles
[i
].language
);
7367 input_file_compiler
= infiles
[i
].incompiler
;
7369 if (input_file_compiler
)
7371 /* Ok, we found an applicable compiler. Run its spec. */
7373 if (input_file_compiler
->spec
[0] == '#')
7375 error ("%s: %s compiler not installed on this system",
7376 gcc_input_filename
, &input_file_compiler
->spec
[1]);
7377 this_file_error
= 1;
7383 if (debug_check_temp_file
[0])
7384 free (debug_check_temp_file
[0]);
7385 debug_check_temp_file
[0] = NULL
;
7387 if (debug_check_temp_file
[1])
7388 free (debug_check_temp_file
[1]);
7389 debug_check_temp_file
[1] = NULL
;
7392 value
= do_spec (input_file_compiler
->spec
);
7393 infiles
[i
].compiled
= true;
7395 this_file_error
= 1;
7396 else if (compare_debug
&& debug_check_temp_file
[0])
7399 inform (0, "recompiling with -fcompare-debug");
7401 compare_debug
= -compare_debug
;
7402 n_switches
= n_switches_debug_check
[1];
7403 switches
= switches_debug_check
[1];
7405 value
= do_spec (input_file_compiler
->spec
);
7407 compare_debug
= -compare_debug
;
7408 n_switches
= n_switches_debug_check
[0];
7409 switches
= switches_debug_check
[0];
7413 error ("during -fcompare-debug recompilation");
7414 this_file_error
= 1;
7417 gcc_assert (debug_check_temp_file
[1]
7418 && strcmp (debug_check_temp_file
[0],
7419 debug_check_temp_file
[1]));
7422 inform (0, "comparing final insns dumps");
7424 if (compare_files (debug_check_temp_file
))
7425 this_file_error
= 1;
7430 if (debug_check_temp_file
[0])
7431 free (debug_check_temp_file
[0]);
7432 debug_check_temp_file
[0] = NULL
;
7434 if (debug_check_temp_file
[1])
7435 free (debug_check_temp_file
[1]);
7436 debug_check_temp_file
[1] = NULL
;
7441 /* If this file's name does not contain a recognized suffix,
7442 record it as explicit linker input. */
7445 explicit_link_files
[i
] = 1;
7447 /* Clear the delete-on-failure queue, deleting the files in it
7448 if this compilation failed. */
7450 if (this_file_error
)
7452 delete_failure_queue ();
7455 /* If this compilation succeeded, don't delete those files later. */
7456 clear_failure_queue ();
7459 /* Reset the input file name to the first compile/object file name, for use
7460 with %b in LINK_SPEC. We use the first input file that we can find
7461 a compiler to compile it instead of using infiles.language since for
7462 languages other than C we use aliases that we then lookup later. */
7467 for (i
= 0; i
< n_infiles
; i
++)
7468 if (infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
7470 set_input (infiles
[i
].name
);
7477 /* Make sure INPUT_FILE_NUMBER points to first available open
7479 input_file_number
= n_infiles
;
7480 if (lang_specific_pre_link ())
7484 /* Determine if there are any linker input files. */
7485 num_linker_inputs
= 0;
7486 for (i
= 0; (int) i
< n_infiles
; i
++)
7487 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
7488 num_linker_inputs
++;
7490 /* Run ld to link all the compiler output files. */
7492 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
7494 int tmp
= execution_count
;
7495 const char *fuse_linker_plugin
= "fuse-linker-plugin";
7497 /* We'll use ld if we can't find collect2. */
7498 if (! strcmp (linker_name_spec
, "collect2"))
7500 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
7502 linker_name_spec
= "ld";
7505 if (switch_matches (fuse_linker_plugin
,
7506 fuse_linker_plugin
+ strlen (fuse_linker_plugin
), 0))
7508 linker_plugin_file_spec
= find_a_file (&exec_prefixes
,
7509 "liblto_plugin.so", R_OK
,
7511 if (!linker_plugin_file_spec
)
7512 fatal_error ("-fuse-linker-plugin, but liblto_plugin.so not found");
7514 lto_libgcc_spec
= find_a_file (&startfile_prefixes
, "libgcc.a",
7516 if (!lto_libgcc_spec
)
7517 fatal_error ("could not find libgcc.a");
7519 lto_gcc_spec
= argv
[0];
7521 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
7523 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
7524 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
7526 if (print_subprocess_help
== 1)
7528 printf (_("\nLinker options\n==============\n\n"));
7529 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
7530 " to the linker.\n\n"));
7533 value
= do_spec (link_command_spec
);
7536 linker_was_run
= (tmp
!= execution_count
);
7539 /* If options said don't run linker,
7540 complain about input files to be given to the linker. */
7542 if (! linker_was_run
&& !seen_error ())
7543 for (i
= 0; (int) i
< n_infiles
; i
++)
7544 if (explicit_link_files
[i
]
7545 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
7546 warning (0, "%s: linker input file unused because linking not done",
7549 /* Delete some or all of the temporary files we made. */
7552 delete_failure_queue ();
7553 delete_temp_files ();
7555 if (print_help_list
)
7557 printf (("\nFor bug reporting instructions, please see:\n"));
7558 printf ("%s\n", bug_report_url
);
7561 return (signal_count
!= 0 ? 2
7562 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
7566 /* Find the proper compilation spec for the file name NAME,
7567 whose length is LENGTH. LANGUAGE is the specified language,
7568 or 0 if this file is to be passed to the linker. */
7570 static struct compiler
*
7571 lookup_compiler (const char *name
, size_t length
, const char *language
)
7573 struct compiler
*cp
;
7575 /* If this was specified by the user to be a linker input, indicate that. */
7576 if (language
!= 0 && language
[0] == '*')
7579 /* Otherwise, look for the language, if one is spec'd. */
7582 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7583 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
7586 error ("language %s not recognized", language
);
7590 /* Look for a suffix. */
7591 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7593 if (/* The suffix `-' matches only the file name `-'. */
7594 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7595 || (strlen (cp
->suffix
) < length
7596 /* See if the suffix matches the end of NAME. */
7597 && !strcmp (cp
->suffix
,
7598 name
+ length
- strlen (cp
->suffix
))
7603 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
7604 /* Look again, but case-insensitively this time. */
7606 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7608 if (/* The suffix `-' matches only the file name `-'. */
7609 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7610 || (strlen (cp
->suffix
) < length
7611 /* See if the suffix matches the end of NAME. */
7612 && ((!strcmp (cp
->suffix
,
7613 name
+ length
- strlen (cp
->suffix
))
7614 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
7615 && !strcasecmp (cp
->suffix
,
7616 name
+ length
- strlen (cp
->suffix
)))
7622 if (cp
>= compilers
)
7624 if (cp
->spec
[0] != '@')
7625 /* A non-alias entry: return it. */
7628 /* An alias entry maps a suffix to a language.
7629 Search for the language; pass 0 for NAME and LENGTH
7630 to avoid infinite recursion if language not found. */
7631 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
7637 save_string (const char *s
, int len
)
7639 char *result
= XNEWVEC (char, len
+ 1);
7641 memcpy (result
, s
, len
);
7647 pfatal_with_name (const char *name
)
7649 perror_with_name (name
);
7650 delete_temp_files ();
7655 perror_with_name (const char *name
)
7657 error ("%s: %s", name
, xstrerror (errno
));
7661 validate_switches_from_spec (const char *spec
)
7663 const char *p
= spec
;
7666 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
7667 /* We have a switch spec. */
7668 p
= validate_switches (p
+ 1);
7672 validate_all_switches (void)
7674 struct compiler
*comp
;
7675 struct spec_list
*spec
;
7677 for (comp
= compilers
; comp
->spec
; comp
++)
7678 validate_switches_from_spec (comp
->spec
);
7680 /* Look through the linked list of specs read from the specs file. */
7681 for (spec
= specs
; spec
; spec
= spec
->next
)
7682 validate_switches_from_spec (*spec
->ptr_spec
);
7684 validate_switches_from_spec (link_command_spec
);
7687 /* Look at the switch-name that comes after START
7688 and mark as valid all supplied switches that match it. */
7691 validate_switches (const char *start
)
7693 const char *p
= start
;
7697 bool suffix
= false;
7698 bool starred
= false;
7700 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7709 if (*p
== '.' || *p
== ',')
7713 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7714 || *p
== ',' || *p
== '.' || *p
== '@')
7719 starred
= true, p
++;
7725 /* Mark all matching switches as valid. */
7726 for (i
= 0; i
< n_switches
; i
++)
7727 if (!strncmp (switches
[i
].part1
, atom
, len
)
7728 && (starred
|| switches
[i
].part1
[len
] == 0))
7729 switches
[i
].validated
= 1;
7733 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
7736 if (*p
&& p
[-1] == ':')
7738 while (*p
&& *p
!= ';' && *p
!= '}')
7743 if (*p
== '{' || *p
== '<')
7744 p
= validate_switches (p
+1);
7745 else if (p
[0] == 'W' && p
[1] == '{')
7746 p
= validate_switches (p
+2);
7753 if (*p
&& p
[-1] == ';')
7767 static struct mdswitchstr
*mdswitches
;
7768 static int n_mdswitches
;
7770 /* Check whether a particular argument was used. The first time we
7771 canonicalize the switches to keep only the ones we care about. */
7774 used_arg (const char *p
, int len
)
7779 const char *replace
;
7784 static struct mswitchstr
*mswitches
;
7785 static int n_mswitches
;
7790 struct mswitchstr
*matches
;
7794 /* Break multilib_matches into the component strings of string
7795 and replacement string. */
7796 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7801 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
7803 q
= multilib_matches
;
7812 fatal_error ("multilib spec '%s' is invalid",
7817 matches
[i
].len
= q
- matches
[i
].str
;
7819 matches
[i
].replace
= ++q
;
7820 while (*q
!= ';' && *q
!= '\0')
7823 goto invalid_matches
;
7826 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7832 /* Now build a list of the replacement string for switches that we care
7833 about. Make sure we allocate at least one entry. This prevents
7834 xmalloc from calling fatal, and prevents us from re-executing this
7837 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7838 for (i
= 0; i
< n_switches
; i
++)
7839 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
7841 int xlen
= strlen (switches
[i
].part1
);
7842 for (j
= 0; j
< cnt
; j
++)
7843 if (xlen
== matches
[j
].len
7844 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7846 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7847 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7848 mswitches
[n_mswitches
].replace
= (char *) 0;
7849 mswitches
[n_mswitches
].rep_len
= 0;
7855 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7856 on the command line nor any options mutually incompatible with
7858 for (i
= 0; i
< n_mdswitches
; i
++)
7862 for (q
= multilib_options
; *q
!= '\0'; q
++)
7868 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7869 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7871 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7878 if (*q
!= ' ' && *q
!= '\0')
7880 while (*r
!= ' ' && *r
!= '\0')
7883 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7886 if (used_arg (r
, q
- r
))
7891 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7892 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7893 mswitches
[n_mswitches
].replace
= (char *) 0;
7894 mswitches
[n_mswitches
].rep_len
= 0;
7907 for (i
= 0; i
< n_mswitches
; i
++)
7908 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7915 default_arg (const char *p
, int len
)
7919 for (i
= 0; i
< n_mdswitches
; i
++)
7920 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7926 /* Work out the subdirectory to use based on the options. The format of
7927 multilib_select is a list of elements. Each element is a subdirectory
7928 name followed by a list of options followed by a semicolon. The format
7929 of multilib_exclusions is the same, but without the preceding
7930 directory. First gcc will check the exclusions, if none of the options
7931 beginning with an exclamation point are present, and all of the other
7932 options are present, then we will ignore this completely. Passing
7933 that, gcc will consider each multilib_select in turn using the same
7934 rules for matching the options. If a match is found, that subdirectory
7938 set_multilib_dir (void)
7941 unsigned int this_path_len
;
7942 const char *this_path
, *this_arg
;
7943 const char *start
, *end
;
7945 int ok
, ndfltok
, first
;
7948 start
= multilib_defaults
;
7949 while (*start
== ' ' || *start
== '\t')
7951 while (*start
!= '\0')
7954 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7956 while (*start
== ' ' || *start
== '\t')
7964 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
7965 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7967 while (*start
== ' ' || *start
== '\t')
7973 for (end
= start
+ 1;
7974 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7977 obstack_grow (&multilib_obstack
, start
, end
- start
);
7978 obstack_1grow (&multilib_obstack
, 0);
7979 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
7980 mdswitches
[i
++].len
= end
- start
;
7987 p
= multilib_exclusions
;
7990 /* Ignore newlines. */
7997 /* Check the arguments. */
8004 fatal_error ("multilib exclusions '%s' is invalid",
8005 multilib_exclusions
);
8015 while (*p
!= ' ' && *p
!= ';')
8018 goto invalid_exclusions
;
8022 if (*this_arg
!= '!')
8030 ok
= used_arg (this_arg
, p
- this_arg
);
8045 p
= multilib_select
;
8048 /* Ignore newlines. */
8055 /* Get the initial path. */
8062 fatal_error ("multilib select '%s' is invalid",
8067 this_path_len
= p
- this_path
;
8069 /* Check the arguments. */
8076 goto invalid_select
;
8085 while (*p
!= ' ' && *p
!= ';')
8088 goto invalid_select
;
8092 if (*this_arg
!= '!')
8100 /* If this is a default argument, we can just ignore it.
8101 This is true even if this_arg begins with '!'. Beginning
8102 with '!' does not mean that this argument is necessarily
8103 inappropriate for this library: it merely means that
8104 there is a more specific library which uses this
8105 argument. If this argument is a default, we need not
8106 consider that more specific library. */
8107 ok
= used_arg (this_arg
, p
- this_arg
);
8114 if (default_arg (this_arg
, p
- this_arg
))
8123 if (this_path_len
!= 1
8124 || this_path
[0] != '.')
8126 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
8129 strncpy (new_multilib_dir
, this_path
, this_path_len
);
8130 new_multilib_dir
[this_path_len
] = '\0';
8131 q
= strchr (new_multilib_dir
, ':');
8134 multilib_dir
= new_multilib_dir
;
8141 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
8143 while (q
< end
&& *q
!= ':')
8147 char *new_multilib_os_dir
= XNEWVEC (char, end
- q
);
8148 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
8149 new_multilib_os_dir
[end
- q
- 1] = '\0';
8150 multilib_os_dir
= new_multilib_os_dir
;
8158 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
8159 && strcmp (multilib_os_dir
, ".") == 0)
8161 free (CONST_CAST (char *, multilib_os_dir
));
8162 multilib_os_dir
= NULL
;
8164 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
8165 multilib_os_dir
= multilib_dir
;
8168 /* Print out the multiple library subdirectory selection
8169 information. This prints out a series of lines. Each line looks
8170 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
8171 required. Only the desired options are printed out, the negative
8172 matches. The options are print without a leading dash. There are
8173 no spaces to make it easy to use the information in the shell.
8174 Each subdirectory is printed only once. This assumes the ordering
8175 generated by the genmultilib script. Also, we leave out ones that match
8179 print_multilib_info (void)
8181 const char *p
= multilib_select
;
8182 const char *last_path
= 0, *this_path
;
8184 unsigned int last_path_len
= 0;
8189 /* Ignore newlines. */
8196 /* Get the initial path. */
8203 fatal_error ("multilib select '%s' is invalid", multilib_select
);
8209 /* When --disable-multilib was used but target defines
8210 MULTILIB_OSDIRNAMES, entries starting with .: are there just
8211 to find multilib_os_dir, so skip them from output. */
8212 if (this_path
[0] == '.' && this_path
[1] == ':')
8215 /* Check for matches with the multilib_exclusions. We don't bother
8216 with the '!' in either list. If any of the exclusion rules match
8217 all of its options with the select rule, we skip it. */
8219 const char *e
= multilib_exclusions
;
8220 const char *this_arg
;
8225 /* Ignore newlines. */
8232 /* Check the arguments. */
8241 fatal_error ("multilib exclusion '%s' is invalid",
8242 multilib_exclusions
);
8253 while (*e
!= ' ' && *e
!= ';')
8256 goto invalid_exclusion
;
8264 int len
= e
- this_arg
;
8267 goto invalid_select
;
8271 while (*q
!= ' ' && *q
!= ';')
8274 goto invalid_select
;
8278 if (! strncmp (arg
, this_arg
,
8279 (len
< q
- arg
) ? q
- arg
: len
)
8280 || default_arg (this_arg
, e
- this_arg
))
8310 /* If this is a duplicate, skip it. */
8311 skip
= (last_path
!= 0
8312 && (unsigned int) (p
- this_path
) == last_path_len
8313 && ! strncmp (last_path
, this_path
, last_path_len
));
8315 last_path
= this_path
;
8316 last_path_len
= p
- this_path
;
8319 /* If this directory requires any default arguments, we can skip
8320 it. We will already have printed a directory identical to
8321 this one which does not require that default argument. */
8332 goto invalid_select
;
8339 while (*q
!= ' ' && *q
!= ';')
8342 goto invalid_select
;
8347 && default_arg (arg
, q
- arg
))
8362 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
8373 goto invalid_select
;
8381 use_arg
= *p
!= '!';
8386 while (*p
!= ' ' && *p
!= ';')
8389 goto invalid_select
;
8401 /* If there are extra options, print them now. */
8402 if (multilib_extra
&& *multilib_extra
)
8404 int print_at
= TRUE
;
8407 for (q
= multilib_extra
; *q
!= '\0'; q
++)
8428 /* getenv built-in spec function.
8430 Returns the value of the environment variable given by its first
8431 argument, concatenated with the second argument. If the
8432 environment variable is not defined, a fatal error is issued. */
8435 getenv_spec_function (int argc
, const char **argv
)
8445 value
= getenv (argv
[0]);
8447 fatal_error ("environment variable \"%s\" not defined", argv
[0]);
8449 /* We have to escape every character of the environment variable so
8450 they are not interpreted as active spec characters. A
8451 particularly painful case is when we are reading a variable
8452 holding a windows path complete with \ separators. */
8453 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
8454 result
= XNEWVAR (char, len
);
8455 for (ptr
= result
; *value
; ptr
+= 2)
8461 strcpy (ptr
, argv
[1]);
8466 /* if-exists built-in spec function.
8468 Checks to see if the file specified by the absolute pathname in
8469 ARGS exists. Returns that pathname if found.
8471 The usual use for this function is to check for a library file
8472 (whose name has been expanded with %s). */
8475 if_exists_spec_function (int argc
, const char **argv
)
8477 /* Must have only one argument. */
8478 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8484 /* if-exists-else built-in spec function.
8486 This is like if-exists, but takes an additional argument which
8487 is returned if the first argument does not exist. */
8490 if_exists_else_spec_function (int argc
, const char **argv
)
8492 /* Must have exactly two arguments. */
8496 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8502 /* replace-outfile built-in spec function.
8504 This looks for the first argument in the outfiles array's name and
8505 replaces it with the second argument. */
8508 replace_outfile_spec_function (int argc
, const char **argv
)
8511 /* Must have exactly two arguments. */
8515 for (i
= 0; i
< n_infiles
; i
++)
8517 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
8518 outfiles
[i
] = xstrdup (argv
[1]);
8523 /* Given two version numbers, compares the two numbers.
8524 A version number must match the regular expression
8525 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
8528 compare_version_strings (const char *v1
, const char *v2
)
8533 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
8534 REG_EXTENDED
| REG_NOSUB
) != 0)
8536 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
8537 if (rresult
== REG_NOMATCH
)
8538 fatal_error ("invalid version number `%s'", v1
);
8539 else if (rresult
!= 0)
8541 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
8542 if (rresult
== REG_NOMATCH
)
8543 fatal_error ("invalid version number `%s'", v2
);
8544 else if (rresult
!= 0)
8547 return strverscmp (v1
, v2
);
8551 /* version_compare built-in spec function.
8553 This takes an argument of the following form:
8555 <comparison-op> <arg1> [<arg2>] <switch> <result>
8557 and produces "result" if the comparison evaluates to true,
8558 and nothing if it doesn't.
8560 The supported <comparison-op> values are:
8562 >= true if switch is a later (or same) version than arg1
8564 < true if switch is an earlier version than arg1
8566 >< true if switch is arg1 or later, and earlier than arg2
8567 <> true if switch is earlier than arg1 or is arg2 or later
8569 If the switch is not present, the condition is false unless
8570 the first character of the <comparison-op> is '!'.
8573 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
8574 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
8577 version_compare_spec_function (int argc
, const char **argv
)
8581 const char *switch_value
= NULL
;
8586 fatal_error ("too few arguments to %%:version-compare");
8587 if (argv
[0][0] == '\0')
8589 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
8591 if (argc
!= nargs
+ 3)
8592 fatal_error ("too many arguments to %%:version-compare");
8594 switch_len
= strlen (argv
[nargs
+ 1]);
8595 for (i
= 0; i
< n_switches
; i
++)
8596 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
8597 && check_live_switch (i
, switch_len
))
8598 switch_value
= switches
[i
].part1
+ switch_len
;
8600 if (switch_value
== NULL
)
8604 comp1
= compare_version_strings (switch_value
, argv
[1]);
8606 comp2
= compare_version_strings (switch_value
, argv
[2]);
8608 comp2
= -1; /* This value unused. */
8611 switch (argv
[0][0] << 8 | argv
[0][1])
8613 case '>' << 8 | '=':
8614 result
= comp1
>= 0;
8616 case '!' << 8 | '<':
8617 result
= comp1
>= 0 || switch_value
== NULL
;
8622 case '!' << 8 | '>':
8623 result
= comp1
< 0 || switch_value
== NULL
;
8625 case '>' << 8 | '<':
8626 result
= comp1
>= 0 && comp2
< 0;
8628 case '<' << 8 | '>':
8629 result
= comp1
< 0 || comp2
>= 0;
8633 fatal_error ("unknown operator '%s' in %%:version-compare", argv
[0]);
8638 return argv
[nargs
+ 2];
8641 /* %:include builtin spec function. This differs from %include in that it
8642 can be nested inside a spec, and thus be conditionalized. It takes
8643 one argument, the filename, and looks for it in the startfile path.
8644 The result is always NULL, i.e. an empty expansion. */
8647 include_spec_function (int argc
, const char **argv
)
8654 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
8655 read_specs (file
? file
: argv
[0], FALSE
);
8660 /* %:find-file spec function. This function replace its argument by
8661 the file found thru find_file, that is the -print-file-name gcc
8664 find_file_spec_function (int argc
, const char**argv
)
8671 file
= find_file (argv
[0]);
8676 /* %:print-asm-header spec function. Print a banner to say that the
8677 following output is from the assembler. */
8680 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
8681 const char **argv ATTRIBUTE_UNUSED
)
8683 printf (_("Assembler options\n=================\n\n"));
8684 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
8689 /* Compute a timestamp to initialize flag_random_seed. */
8692 get_local_tick (void)
8696 /* Get some more or less random data. */
8697 #ifdef HAVE_GETTIMEOFDAY
8701 gettimeofday (&tv
, NULL
);
8702 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
8706 time_t now
= time (NULL
);
8708 if (now
!= (time_t)-1)
8709 ret
= (unsigned) now
;
8716 /* %:compare-debug-dump-opt spec function. Save the last argument,
8717 expected to be the last -fdump-final-insns option, or generate a
8721 compare_debug_dump_opt_spec_function (int arg
,
8722 const char **argv ATTRIBUTE_UNUSED
)
8727 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
8730 fatal_error ("too many arguments to %%:compare-debug-dump-opt");
8732 do_spec_2 ("%{fdump-final-insns=*:%*}");
8733 do_spec_1 (" ", 0, NULL
);
8735 if (argbuf_index
> 0 && strcmp (argv
[argbuf_index
- 1], "."))
8740 name
= xstrdup (argv
[argbuf_index
- 1]);
8745 const char *ext
= NULL
;
8747 if (argbuf_index
> 0)
8749 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
8752 else if (!compare_debug
)
8755 do_spec_2 ("%g.gkd");
8757 do_spec_1 (" ", 0, NULL
);
8759 gcc_assert (argbuf_index
> 0);
8761 name
= concat (argbuf
[argbuf_index
- 1], ext
, NULL
);
8763 ret
= concat ("-fdump-final-insns=", name
, NULL
);
8766 which
= compare_debug
< 0;
8767 debug_check_temp_file
[which
] = name
;
8771 unsigned HOST_WIDE_INT value
= get_local_tick () ^ getpid ();
8773 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
8777 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
8786 static const char *debug_auxbase_opt
;
8788 /* %:compare-debug-self-opt spec function. Expands to the options
8789 that are to be passed in the second compilation of
8793 compare_debug_self_opt_spec_function (int arg
,
8794 const char **argv ATTRIBUTE_UNUSED
)
8797 fatal_error ("too many arguments to %%:compare-debug-self-opt");
8799 if (compare_debug
>= 0)
8802 do_spec_2 ("%{c|S:%{o*:%*}}");
8803 do_spec_1 (" ", 0, NULL
);
8805 if (argbuf_index
> 0)
8806 debug_auxbase_opt
= concat ("-auxbase-strip ",
8807 argbuf
[argbuf_index
- 1],
8810 debug_auxbase_opt
= NULL
;
8813 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
8814 %<fdump-final-insns=* -w -S -o %j \
8815 %{!fcompare-debug-second:-fcompare-debug-second} \
8816 ", compare_debug_opt
, NULL
);
8819 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
8820 options that are to be passed in the second compilation of
8821 compare-debug. It expects, as an argument, the basename of the
8822 current input file name, with the .gk suffix appended to it. */
8825 compare_debug_auxbase_opt_spec_function (int arg
,
8832 fatal_error ("too few arguments to %%:compare-debug-auxbase-opt");
8835 fatal_error ("too many arguments to %%:compare-debug-auxbase-opt");
8837 if (compare_debug
>= 0)
8840 len
= strlen (argv
[0]);
8841 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
8842 fatal_error ("argument to %%:compare-debug-auxbase-opt "
8843 "does not end in .gk");
8845 if (debug_auxbase_opt
)
8846 return debug_auxbase_opt
;
8848 #define OPT "-auxbase "
8851 name
= (char*) xmalloc (sizeof (OPT
) + len
);
8852 memcpy (name
, OPT
, sizeof (OPT
) - 1);
8853 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
8854 name
[sizeof (OPT
) - 1 + len
] = '\0';