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Diffstat (limited to 'gcc/gcc.c')
| -rwxr-xr-x | gcc/gcc.c | 5093 |
1 files changed, 0 insertions, 5093 deletions
diff --git a/gcc/gcc.c b/gcc/gcc.c deleted file mode 100755 index f5c98a4..0000000 --- a/gcc/gcc.c +++ /dev/null @@ -1,5093 +0,0 @@ -/* Compiler driver program that can handle many languages. - Copyright (C) 1987, 89, 92-98, 1999 Free Software Foundation, Inc. - - This file is part of GNU CC. - - GNU CC is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - GNU CC is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with GNU CC; see the file COPYING. If not, write to - the Free Software Foundation, 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* This program is the user interface to the C compiler and possibly to - other compilers. It is used because compilation is a complicated procedure - which involves running several programs and passing temporary files between - them, forwarding the users switches to those programs selectively, - and deleting the temporary files at the end. - - CC recognizes how to compile each input file by suffixes in the file names. - Once it knows which kind of compilation to perform, the procedure for - compilation is specified by a string called a "spec". */ - -#include "config.h" -#include "system.h" -#include <signal.h> - -#include "obstack.h" -#include "prefix.h" - - -/* By default there is no special suffix for executables. */ -#define EXECUTABLE_SUFFIX "" - -/* By default, the suffix for object files is ".o". */ -#define OBJECT_SUFFIX ".o" - -/* By default, colon separates directories in a path. */ -#ifndef PATH_SEPARATOR -#define PATH_SEPARATOR ':' -#endif - -#ifndef DIR_SEPARATOR -#define DIR_SEPARATOR '/' -#endif - -/* CYGNUS LOCAL -- meissner/relative pathnames */ -#ifndef DIR_UP -#define DIR_UP ".." -#endif -/* END CYGNUS LOCAL -- meissner/relative pathnames */ - -static char dir_separator_str[] = {DIR_SEPARATOR, 0}; - -#define obstack_chunk_alloc xmalloc -#define obstack_chunk_free free - -#ifndef HAVE_KILL -#define kill(p,s) raise(s) -#endif - -/* If a stage of compilation returns an exit status >= 1, - compilation of that file ceases. */ - -#define MIN_FATAL_STATUS 1 - -/* Flag saying to print the directories gcc will search through looking for - programs, libraries, etc. */ - -static int print_search_dirs; - -/* Flag saying to print the full filename of this file - as found through our usual search mechanism. */ - -static char *print_file_name = NULL; - -/* As print_file_name, but search for executable file. */ - -static char *print_prog_name = NULL; - -/* Flag saying to print the relative path we'd use to - find libgcc.a given the current compiler flags. */ - -static int print_multi_directory; - -/* Flag saying to print the list of subdirectories and - compiler flags used to select them in a standard form. */ - -static int print_multi_lib; - -/* Flag saying to print the command line options understood by gcc and its - sub-processes. */ - -static int print_help_list; - -/* Flag indicating whether we should print the command and arguments */ - -static int verbose_flag; - -/* Nonzero means write "temp" files in source directory - and use the source file's name in them, and don't delete them. */ - -static int save_temps_flag; - -/* The compiler version. */ - -static char *compiler_version; - -/* The target version specified with -V */ - -static char *spec_version = DEFAULT_TARGET_VERSION; - -/* The target machine specified with -b. */ - -static char *spec_machine = DEFAULT_TARGET_MACHINE; - -/* Nonzero if cross-compiling. - When -b is used, the value comes from the `specs' file. */ - -#ifdef CROSS_COMPILE -static char *cross_compile = "1"; -#else -static char *cross_compile = "0"; -#endif - -/* The number of errors that have occurred; the link phase will not be - run if this is non-zero. */ -static int error_count = 0; - -/* This is the obstack which we use to allocate many strings. */ - -static struct obstack obstack; - -/* This is the obstack to build an environment variable to pass to - collect2 that describes all of the relevant switches of what to - pass the compiler in building the list of pointers to constructors - and destructors. */ - -static struct obstack collect_obstack; - -extern char *version_string; - -/* Forward declaration for prototypes. */ -struct path_prefix; - -static void init_spec (void); -static void read_specs (char *, int); -static void set_spec (char *, char *); -static struct compiler *lookup_compiler (char *, size_t, char *); -static char *build_search_list (struct path_prefix *, char *, int); -static void putenv_from_prefixes (struct path_prefix *, char *); -static char *find_a_file (struct path_prefix *, char *, int); -static void add_prefix (struct path_prefix *, const char *, - const char *, int, int, int *); -static char *skip_whitespace (char *); -static void record_temp_file (char *, int, int); -static void delete_if_ordinary (char *); -static void delete_temp_files (void); -static void delete_failure_queue (void); -static void clear_failure_queue (void); -static int check_live_switch (int, int); -static char *handle_braces (char *); -static char *save_string (const char *, int); -extern int do_spec (char *); -static int do_spec_1 (char *, int, char *); -static char *find_file (char *); -static int is_directory (char *, char *, int); -static void validate_switches (char *); -static void validate_all_switches (void); -static void give_switch (int, int, int); -static int used_arg (char *, int); -static int default_arg (char *, int); -static void set_multilib_dir (void); -static void print_multilib_info (void); -static void pfatal_with_name (char *) ATTRIBUTE_NORETURN; -static void perror_with_name (char *); -static void pfatal_pexecute (char *, char *) ATTRIBUTE_NORETURN; -static void fatal (char *, ...) -ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF_1; -static void error (char *, ...) ATTRIBUTE_PRINTF_1; -static void display_help (void); - -void fancy_abort (void) ATTRIBUTE_NORETURN; - - -/* Specs are strings containing lines, each of which (if not blank) - is made up of a program name, and arguments separated by spaces. - The program name must be exact and start from root, since no path - is searched and it is unreliable to depend on the current working directory. - Redirection of input or output is not supported; the subprograms must - accept filenames saying what files to read and write. - - In addition, the specs can contain %-sequences to substitute variable text - or for conditional text. Here is a table of all defined %-sequences. - Note that spaces are not generated automatically around the results of - expanding these sequences; therefore, you can concatenate them together - or with constant text in a single argument. - - %% substitute one % into the program name or argument. - %i substitute the name of the input file being processed. - %b substitute the basename of the input file being processed. - This is the substring up to (and not including) the last period - and not including the directory. - %gSUFFIX - substitute a file name that has suffix SUFFIX and is chosen - once per compilation, and mark the argument a la %d. To reduce - exposure to denial-of-service attacks, the file name is now - chosen in a way that is hard to predict even when previously - chosen file names are known. For example, `%g.s ... %g.o ... %g.s' - might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches - the regexp "[.A-Za-z]*" or the special string "%O", which is - treated exactly as if %O had been pre-processed. Previously, %g - was simply substituted with a file name chosen once per compilation, - without regard to any appended suffix (which was therefore treated - just like ordinary text), making such attacks more likely to succeed. - %uSUFFIX - like %g, but generates a new temporary file name even if %uSUFFIX - was already seen. - %USUFFIX - substitutes the last file name generated with %uSUFFIX, generating a - new one if there is no such last file name. In the absence of any - %uSUFFIX, this is just like %gSUFFIX, except they don't share - the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s' - would involve the generation of two distinct file names, one - for each `%g.s' and another for each `%U.s'. Previously, %U was - simply substituted with a file name chosen for the previous %u, - without regard to any appended suffix. - %d marks the argument containing or following the %d as a - temporary file name, so that that file will be deleted if CC exits - successfully. Unlike %g, this contributes no text to the argument. - %w marks the argument containing or following the %w as the - "output file" of this compilation. This puts the argument - into the sequence of arguments that %o will substitute later. - %W{...} - like %{...} but mark last argument supplied within - as a file to be deleted on failure. - %o substitutes the names of all the output files, with spaces - automatically placed around them. You should write spaces - around the %o as well or the results are undefined. - %o is for use in the specs for running the linker. - Input files whose names have no recognized suffix are not compiled - at all, but they are included among the output files, so they will - be linked. - %O substitutes the suffix for object files. Note that this is - handled specially when it immediately follows %g, %u, or %U, - because of the need for those to form complete file names. The - handling is such that %O is treated exactly as if it had already - been substituted, except that %g, %u, and %U do not currently - support additional SUFFIX characters following %O as they would - following, for example, `.o'. - %p substitutes the standard macro predefinitions for the - current target machine. Use this when running cpp. - %P like %p, but puts `__' before and after the name of each macro. - (Except macros that already have __.) - This is for ANSI C. - %I Substitute a -iprefix option made from GCC_EXEC_PREFIX. - %s current argument is the name of a library or startup file of some sort. - Search for that file in a standard list of directories - and substitute the full name found. - %eSTR Print STR as an error message. STR is terminated by a newline. - Use this when inconsistent options are detected. - %x{OPTION} Accumulate an option for %X. - %X Output the accumulated linker options specified by compilations. - %Y Output the accumulated assembler options specified by compilations. - %Z Output the accumulated preprocessor options specified by compilations. - %v1 Substitute the major version number of GCC. - (For version 2.5.n, this is 2.) - %v2 Substitute the minor version number of GCC. - (For version 2.5.n, this is 5.) - %a process ASM_SPEC as a spec. - This allows config.h to specify part of the spec for running as. - %A process ASM_FINAL_SPEC as a spec. A capital A is actually - used here. This can be used to run a post-processor after the - assembler has done its job. - %D Dump out a -L option for each directory in startfile_prefixes. - If multilib_dir is set, extra entries are generated with it affixed. - %l process LINK_SPEC as a spec. - %L process LIB_SPEC as a spec. - %G process LIBGCC_SPEC as a spec. - %S process STARTFILE_SPEC as a spec. A capital S is actually used here. - %E process ENDFILE_SPEC as a spec. A capital E is actually used here. - %c process SIGNED_CHAR_SPEC as a spec. - %C process CPP_SPEC as a spec. A capital C is actually used here. - %1 process CC1_SPEC as a spec. - %| output "-" if the input for the current command is coming from a pipe. - %* substitute the variable part of a matched option. (See below.) - Note that each comma in the substituted string is replaced by - a single space. - %{S} substitutes the -S switch, if that switch was given to CC. - If that switch was not specified, this substitutes nothing. - Here S is a metasyntactic variable. - %{S*} substitutes all the switches specified to CC whose names start - with -S. This is used for -o, -D, -I, etc; switches that take - arguments. CC considers `-o foo' as being one switch whose - name starts with `o'. %{o*} would substitute this text, - including the space; thus, two arguments would be generated. - %{^S*} likewise, but don't put a blank between a switch and any args. - %{S*:X} substitutes X if one or more switches whose names start with -S are - specified to CC. Note that the tail part of the -S option - (i.e. the part matched by the `*') will be substituted for each - occurrence of %* within X. - %{S:X} substitutes X, but only if the -S switch was given to CC. - %{!S:X} substitutes X, but only if the -S switch was NOT given to CC. - %{|S:X} like %{S:X}, but if no S switch, substitute `-'. - %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'. - %{.S:X} substitutes X, but only if processing a file with suffix S. - %{!.S:X} substitutes X, but only if NOT processing a file with suffix S. - %{S|P:X} substitutes X if either -S or -P was given to CC. This may be - combined with ! and . as above binding stronger than the OR. - %(Spec) processes a specification defined in a specs file as *Spec: - %[Spec] as above, but put __ around -D arguments - - The conditional text X in a %{S:X} or %{!S:X} construct may contain - other nested % constructs or spaces, or even newlines. They are - processed as usual, as described above. - - The -O, -f, -m, and -W switches are handled specifically in these - constructs. If another value of -O or the negated form of a -f, -m, or - -W switch is found later in the command line, the earlier switch - value is ignored, except with {S*} where S is just one letter; this - passes all matching options. - - The character | at the beginning of the predicate text is used to indicate - that a command should be piped to the following command, but only if -pipe - is specified. - - Note that it is built into CC which switches take arguments and which - do not. You might think it would be useful to generalize this to - allow each compiler's spec to say which switches take arguments. But - this cannot be done in a consistent fashion. CC cannot even decide - which input files have been specified without knowing which switches - take arguments, and it must know which input files to compile in order - to tell which compilers to run. - - CC also knows implicitly that arguments starting in `-l' are to be - treated as compiler output files, and passed to the linker in their - proper position among the other output files. */ - -/* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */ - -/* config.h can define ASM_SPEC to provide extra args to the assembler - or extra switch-translations. */ -#ifndef ASM_SPEC -#define ASM_SPEC "" -#endif - -/* config.h can define ASM_FINAL_SPEC to run a post processor after - the assembler has run. */ -#ifndef ASM_FINAL_SPEC -#define ASM_FINAL_SPEC "" -#endif - -/* config.h can define CPP_SPEC to provide extra args to the C preprocessor - or extra switch-translations. */ -#ifndef CPP_SPEC -#define CPP_SPEC "" -#endif - -/* config.h can define CC1_SPEC to provide extra args to cc1 - or extra switch-translations. */ -#ifndef CC1_SPEC -#define CC1_SPEC "" -#endif - -/* config.h can define LINK_SPEC to provide extra args to the linker - or extra switch-translations. */ -#ifndef LINK_SPEC -#define LINK_SPEC "" -#endif - -/* config.h can define LIB_SPEC to override the default libraries. */ -#ifndef LIB_SPEC -#define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}" -#endif - -#define LIBGCC_SPEC "-lgcc" - -/* config.h can define STARTFILE_SPEC to override the default crt0 files. */ -#ifndef STARTFILE_SPEC -#define STARTFILE_SPEC \ - "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}" -#endif - -/* config.h can define SWITCHES_NEED_SPACES to control which options - require spaces between the option and the argument. */ -#ifndef SWITCHES_NEED_SPACES -#define SWITCHES_NEED_SPACES "" -#endif - -/* config.h can define ENDFILE_SPEC to override the default crtn files. */ -#ifndef ENDFILE_SPEC -#define ENDFILE_SPEC "" -#endif - -/* This spec is used for telling cpp whether char is signed or not. */ -#ifndef SIGNED_CHAR_SPEC -/* Use #if rather than ?: - because MIPS C compiler rejects like ?: in initializers. */ -#if DEFAULT_SIGNED_CHAR -#define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}" -#else -#define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}" -#endif -#endif - -#ifndef LINKER_NAME -#define LINKER_NAME "ld" -#endif - -#ifndef CPP_PREDEFINES -#define CPP_PREDEFINES "" -#endif - -static char *cpp_spec = CPP_SPEC; -static char *cpp_predefines = CPP_PREDEFINES; -static char *cc1_spec = CC1_SPEC; -static char *signed_char_spec = SIGNED_CHAR_SPEC; -static char *asm_spec = ASM_SPEC; -static char *asm_final_spec = ASM_FINAL_SPEC; -static char *link_spec = LINK_SPEC; -static char *lib_spec = LIB_SPEC; -static char *libgcc_spec = LIBGCC_SPEC; -static char *endfile_spec = ENDFILE_SPEC; -static char *startfile_spec = STARTFILE_SPEC; -static char *switches_need_spaces = SWITCHES_NEED_SPACES; -static char *linker_name_spec = LINKER_NAME; - -/* Some compilers have limits on line lengths, and the multilib_select - and/or multilib_matches strings can be very long, so we build them at - run time. */ -static struct obstack multilib_obstack; -static char *multilib_select; -static char *multilib_matches; -static char *multilib_defaults; -#include "multilib.h" - -/* Check whether a particular argument is a default argument. */ - -#ifndef MULTILIB_DEFAULTS -#define MULTILIB_DEFAULTS { "" } -#endif - -static char *multilib_defaults_raw[] = MULTILIB_DEFAULTS; - -struct user_specs { - struct user_specs *next; - char *filename; -}; - -static struct user_specs *user_specs_head, *user_specs_tail; - -/* This defines which switch letters take arguments. */ - -#define DEFAULT_SWITCH_TAKES_ARG(CHAR) \ - ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \ - || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \ - || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \ - || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \ - || (CHAR) == 'B' || (CHAR) == 'b') - -#ifndef SWITCH_TAKES_ARG -#define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR) -#endif - -/* This defines which multi-letter switches take arguments. */ - -#define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \ - (!strcmp(STR, "Tdata") || !strcmp(STR, "Ttext") \ - || !strcmp(STR, "Tbss") || !strcmp(STR, "include") \ - || !strcmp(STR, "imacros") || !strcmp(STR, "aux-info") \ - || !strcmp(STR, "idirafter") || !strcmp(STR, "iprefix") \ - || !strcmp(STR, "iwithprefix") || !strcmp(STR, "iwithprefixbefore") \ - || !strcmp(STR, "isystem") || !strcmp(STR, "specs")) - -#ifndef WORD_SWITCH_TAKES_ARG -#define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG(STR) -#endif - -/* Record the mapping from file suffixes for compilation specs. */ - -struct compiler -{ - char *suffix; /* Use this compiler for input files - whose names end in this suffix. */ - - char *spec[4]; /* To use this compiler, concatenate these - specs and pass to do_spec. */ -}; - -/* Pointer to a vector of `struct compiler' that gives the spec for - compiling a file, based on its suffix. - A file that does not end in any of these suffixes will be passed - unchanged to the loader and nothing else will be done to it. - - An entry containing two 0s is used to terminate the vector. - - If multiple entries match a file, the last matching one is used. */ - -static struct compiler *compilers; - -/* Number of entries in `compilers', not counting the null terminator. */ - -static int n_compilers; - -/* The default list of file name suffixes and their compilation specs. */ - -static struct compiler default_compilers[] = -{ - {".c", {"@c"}}, - {"@c", - { - "%{E|M|MM:cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\ - %{C} %{v} %{A*} %{I*} %{P} %I\ - %{C:%{!E:%eGNU C does not support -C without using -E}}\ - %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\ - -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\ - %{ansi|std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\ - %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\ - %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\ - %{traditional} %{ftraditional:-traditional}\ - %{traditional-cpp:-traditional}\ - %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\ - %i %{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}}\n}" , - "%{!E:%{!M:%{!MM:cc1 %i %1 \ - -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*} %{A*} %{I*} %I\ - %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\ - %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\ - -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\ - %{ansi:-trigraphs -D__STRICT_ANSI__}\ - %{!undef:%{!ansi:%p} %P} %{trigraphs} \ - %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\ - %{H} %C %{D*} %{U*} %{i*} %Z\ - %{ftraditional:-traditional}\ - %{traditional-cpp:-traditional}\ - %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\ - %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \ - %{aux-info*}\ - %{--help:--help} \ - %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\ - %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\ - %{!S:as %a %Y\ - %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\ - %{!pipe:%g.s} %A\n }}}}" - }}, - {"-", - {"%{E:cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\ - %{C} %{v} %{A*} %{I*} %{P} %I\ - %{C:%{!E:%eGNU C does not support -C without using -E}}\ - %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\ - -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\ - %{ansi|std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\ - %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\ - %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\ - %{traditional} %{ftraditional:-traditional}\ - %{traditional-cpp:-traditional}\ - %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\ - %i %W{o*}}\ - %{!E:%e-E required when input is from standard input}"}}, - {".h", {"@c-header"}}, - {"@c-header", - {"%{!E:%eCompilation of header file requested} \ - cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\ - %{C:%{!E:%eGNU C does not support -C without using -E}}\ - %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\ - -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\ - %{std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\ - %{!undef:%{!std=*:%p}%{std=gnu*:%p} %P} %{trigraphs}\ - %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\ - %{traditional} %{ftraditional:-traditional}\ - %{traditional-cpp:-traditional}\ - %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\ - %i %W{o*}"}}, - {".i", {"@cpp-output"}}, - {"@cpp-output", - "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\ - %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\ - %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\ - %{aux-info*}\ - %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\ - %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\ - %{!S:as %a %Y\ - %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\ - %{!pipe:%g.s} %A\n }}}}" }, - {".s", {"@assembler"}}, - {"@assembler", - {"%{!M:%{!MM:%{!E:%{!S:as %a %Y\ - %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\ - %i %A\n }}}}"}}, - {".S", {"@assembler-with-cpp"}}, - {"@assembler-with-cpp", - {"cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\ - %{C:%{!E:%eGNU C does not support -C without using -E}}\ - %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\ - -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \ - %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\ - %{traditional} %{ftraditional:-traditional}\ - %{traditional-cpp:-traditional}\ - %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\ - %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n", - "%{!M:%{!MM:%{!E:%{!S:as %a %Y\ - %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\ - %{!pipe:%g.s} %A\n }}}}"}}, - /* Mark end of table */ - {0, {0}} -}; - -/* Number of elements in default_compilers, not counting the terminator. */ - -static int n_default_compilers - = (sizeof default_compilers / sizeof (struct compiler)) - 1; - -/* Here is the spec for running the linker, after compiling all files. */ - -/* -u* was put back because both BSD and SysV seem to support it. */ -/* %{static:} simply prevents an error message if the target machine - doesn't handle -static. */ -/* We want %{T*} after %{L*} and %D so that it can be used to specify linker - scripts which exist in user specified directories, or in standard - directories. */ -static char *link_command_spec = "\ -%{!fsyntax-only: \ - %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \ - %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\ - %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\ - %{static:} %{L*} %D %o\ - %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\ - %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\ - %{T*}\ - \n }}}}}}"; - -/* A vector of options to give to the linker. - These options are accumulated by %x, - and substituted into the linker command with %X. */ -static int n_linker_options; -static char **linker_options; - -/* A vector of options to give to the assembler. - These options are accumulated by -Wa, - and substituted into the assembler command with %Y. */ -static int n_assembler_options; -static char **assembler_options; - -/* A vector of options to give to the preprocessor. - These options are accumulated by -Wp, - and substituted into the preprocessor command with %Z. */ -static int n_preprocessor_options; -static char **preprocessor_options; - -/* Define how to map long options into short ones. */ - -/* This structure describes one mapping. */ -struct option_map -{ - /* The long option's name. */ - char *name; - /* The equivalent short option. */ - char *equivalent; - /* Argument info. A string of flag chars; NULL equals no options. - a => argument required. - o => argument optional. - j => join argument to equivalent, making one word. - * => require other text after NAME as an argument. */ - char *arg_info; -}; - -/* This is the table of mappings. Mappings are tried sequentially - for each option encountered; the first one that matches, wins. */ - -struct option_map option_map[] = -{ - {"--all-warnings", "-Wall", 0}, - {"--ansi", "-ansi", 0}, - {"--assemble", "-S", 0}, - {"--assert", "-A", "a"}, - {"--classpath", "-fclasspath=", "aj"}, - {"--CLASSPATH", "-fCLASSPATH=", "aj"}, - {"--comments", "-C", 0}, - {"--compile", "-c", 0}, - {"--debug", "-g", "oj"}, - {"--define-macro", "-D", "aj"}, - {"--dependencies", "-M", 0}, - {"--dump", "-d", "a"}, - {"--dumpbase", "-dumpbase", "a"}, - {"--entry", "-e", 0}, - {"--extra-warnings", "-W", 0}, - {"--for-assembler", "-Wa", "a"}, - {"--for-linker", "-Xlinker", "a"}, - {"--force-link", "-u", "a"}, - {"--imacros", "-imacros", "a"}, - {"--include", "-include", "a"}, - {"--include-barrier", "-I-", 0}, - {"--include-directory", "-I", "aj"}, - {"--include-directory-after", "-idirafter", "a"}, - {"--include-prefix", "-iprefix", "a"}, - {"--include-with-prefix", "-iwithprefix", "a"}, - {"--include-with-prefix-before", "-iwithprefixbefore", "a"}, - {"--include-with-prefix-after", "-iwithprefix", "a"}, - {"--language", "-x", "a"}, - {"--library-directory", "-L", "a"}, - {"--machine", "-m", "aj"}, - {"--machine-", "-m", "*j"}, - {"--no-line-commands", "-P", 0}, - {"--no-precompiled-includes", "-noprecomp", 0}, - {"--no-standard-includes", "-nostdinc", 0}, - {"--no-standard-libraries", "-nostdlib", 0}, - {"--no-warnings", "-w", 0}, - {"--optimize", "-O", "oj"}, - {"--output", "-o", "a"}, - {"--output-class-directory", "-foutput-class-dir=", "ja"}, - {"--pedantic", "-pedantic", 0}, - {"--pedantic-errors", "-pedantic-errors", 0}, - {"--pipe", "-pipe", 0}, - {"--prefix", "-B", "a"}, - {"--preprocess", "-E", 0}, - {"--print-search-dirs", "-print-search-dirs", 0}, - {"--print-file-name", "-print-file-name=", "aj"}, - {"--print-libgcc-file-name", "-print-libgcc-file-name", 0}, - {"--print-missing-file-dependencies", "-MG", 0}, - {"--print-multi-lib", "-print-multi-lib", 0}, - {"--print-multi-directory", "-print-multi-directory", 0}, - {"--print-prog-name", "-print-prog-name=", "aj"}, - {"--profile", "-p", 0}, - {"--profile-blocks", "-a", 0}, - {"--quiet", "-q", 0}, - {"--save-temps", "-save-temps", 0}, - {"--shared", "-shared", 0}, - {"--silent", "-q", 0}, - {"--specs", "-specs=", "aj"}, - {"--static", "-static", 0}, - {"--std", "-std=", "aj"}, - {"--symbolic", "-symbolic", 0}, - {"--target", "-b", "a"}, - {"--trace-includes", "-H", 0}, - {"--traditional", "-traditional", 0}, - {"--traditional-cpp", "-traditional-cpp", 0}, - {"--trigraphs", "-trigraphs", 0}, - {"--undefine-macro", "-U", "aj"}, - {"--use-version", "-V", "a"}, - {"--user-dependencies", "-MM", 0}, - {"--verbose", "-v", 0}, - {"--version", "-dumpversion", 0}, - {"--warn-", "-W", "*j"}, - {"--write-dependencies", "-MD", 0}, - {"--write-user-dependencies", "-MMD", 0}, - {"--", "-f", "*j"} -}; - -/* Translate the options described by *ARGCP and *ARGVP. - Make a new vector and store it back in *ARGVP, - and store its length in *ARGVC. */ - -static void -translate_options(int *argcp, char ***argvp) -{ - int i; - int argc = *argcp; - char **argv = *argvp; - char **newv = (char **) xmalloc((argc + 2) * 2 * sizeof (char *)); - int newindex = 0; - - i = 0; - newv[newindex++] = argv[i++]; - - while (i < argc) - { - /* Translate -- options. */ - if (argv[i][0] == '-' && argv[i][1] == '-') - { - size_t j; - /* Find a mapping that applies to this option. */ - for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++) - { - size_t optlen = strlen(option_map[j].name); - size_t arglen = strlen(argv[i]); - size_t complen = arglen > optlen ? optlen : arglen; - char *arginfo = option_map[j].arg_info; - - if (arginfo == 0) - arginfo = ""; - - if (!strncmp(argv[i], option_map[j].name, complen)) - { - char *arg = 0; - - if (arglen < optlen) - { - size_t k; - for (k = j + 1; - k < sizeof (option_map) / sizeof (option_map[0]); - k++) - if (strlen(option_map[k].name) >= arglen - && !strncmp(argv[i], option_map[k].name, arglen)) - { - error("Ambiguous abbreviation %s", argv[i]); - break; - } - - if (k != sizeof (option_map) / sizeof (option_map[0])) - break; - } - - if (arglen > optlen) - { - /* If the option has an argument, accept that. */ - if (argv[i][optlen] == '=') - arg = argv[i] + optlen + 1; - - /* If this mapping requires extra text at end of name, - accept that as "argument". */ - else if (strchr(arginfo, '*') != 0) - arg = argv[i] + optlen; - - /* Otherwise, extra text at end means mismatch. - Try other mappings. */ - else - continue; - } - - else if (strchr(arginfo, '*') != 0) - { - error("Incomplete `%s' option", option_map[j].name); - break; - } - - /* Handle arguments. */ - if (strchr(arginfo, 'a') != 0) - { - if (arg == 0) - { - if (i + 1 == argc) - { - error("Missing argument to `%s' option", - option_map[j].name); - break; - } - - arg = argv[++i]; - } - } - else if (strchr(arginfo, '*') != 0) - ; - else if (strchr(arginfo, 'o') == 0) - { - if (arg != 0) - error("Extraneous argument to `%s' option", - option_map[j].name); - arg = 0; - } - - /* Store the translation as one argv elt or as two. */ - if (arg != 0 && strchr(arginfo, 'j') != 0) - newv[newindex++] = concat(option_map[j].equivalent, arg, - NULL); - else if (arg != 0) - { - newv[newindex++] = option_map[j].equivalent; - newv[newindex++] = arg; - } - else - newv[newindex++] = option_map[j].equivalent; - - break; - } - } - i++; - } - - /* Handle old-fashioned options--just copy them through, - with their arguments. */ - else if (argv[i][0] == '-') - { - char *p = argv[i] + 1; - int c = *p; - int nskip = 1; - - if (SWITCH_TAKES_ARG(c) > (p[1] != 0)) - nskip += SWITCH_TAKES_ARG(c) - (p[1] != 0); - else if (WORD_SWITCH_TAKES_ARG(p)) - nskip += WORD_SWITCH_TAKES_ARG(p); - else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x') - && p[1] == 0) - nskip += 1; - else if (!strcmp(p, "Xlinker")) - nskip += 1; - - /* Watch out for an option at the end of the command line that - is missing arguments, and avoid skipping past the end of the - command line. */ - if (nskip + i > argc) - nskip = argc - i; - - while (nskip > 0) - { - newv[newindex++] = argv[i++]; - nskip--; - } - } - else - /* Ordinary operands, or +e options. */ - newv[newindex++] = argv[i++]; - } - - newv[newindex] = 0; - - *argvp = newv; - *argcp = newindex; -} - -char * -xstrerror(int e) -{ - return strerror(e); -} - -static char * -skip_whitespace(char *p) -{ - while (1) - { - /* A fully-blank line is a delimiter in the SPEC file and shouldn't - be considered whitespace. */ - if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n') - return p + 1; - else if (*p == '\n' || *p == ' ' || *p == '\t') - p++; - else if (*p == '#') - { - while (*p != '\n') p++; - p++; - } - else - break; - } - - return p; -} - -/* Structure to keep track of the specs that have been defined so far. - These are accessed using %(specname) or %[specname] in a compiler - or link spec. */ - -struct spec_list -{ - /* The following 2 fields must be first */ - /* to allow EXTRA_SPECS to be initialized */ - char *name; /* name of the spec. */ - char *ptr; /* available ptr if no static pointer */ - - /* The following fields are not initialized */ - /* by EXTRA_SPECS */ - char **ptr_spec; /* pointer to the spec itself. */ - struct spec_list *next; /* Next spec in linked list. */ - int name_len; /* length of the name */ - int alloc_p; /* whether string was allocated */ -}; - -#define INIT_STATIC_SPEC(NAME,PTR) \ - { NAME, NULL, PTR, (struct spec_list *)0, sizeof (NAME)-1, 0 } - -/* List of statically defined specs */ -static struct spec_list static_specs[] = { - INIT_STATIC_SPEC("asm", &asm_spec), - INIT_STATIC_SPEC("asm_final", &asm_final_spec), - INIT_STATIC_SPEC("cpp", &cpp_spec), - INIT_STATIC_SPEC("cc1", &cc1_spec), - INIT_STATIC_SPEC("endfile", &endfile_spec), - INIT_STATIC_SPEC("link", &link_spec), - INIT_STATIC_SPEC("lib", &lib_spec), - INIT_STATIC_SPEC("libgcc", &libgcc_spec), - INIT_STATIC_SPEC("startfile", &startfile_spec), - INIT_STATIC_SPEC("switches_need_spaces", &switches_need_spaces), - INIT_STATIC_SPEC("signed_char", &signed_char_spec), - INIT_STATIC_SPEC("predefines", &cpp_predefines), - INIT_STATIC_SPEC("cross_compile", &cross_compile), - INIT_STATIC_SPEC("version", &compiler_version), - INIT_STATIC_SPEC("multilib", &multilib_select), - INIT_STATIC_SPEC("multilib_defaults", &multilib_defaults), - INIT_STATIC_SPEC("multilib_extra", &multilib_extra), - INIT_STATIC_SPEC("multilib_matches", &multilib_matches), - INIT_STATIC_SPEC("linker", &linker_name_spec), -}; - - -/* List of dynamically allocates specs that have been defined so far. */ - -static struct spec_list *specs = (struct spec_list *)0; - - -/* Initialize the specs lookup routines. */ - -static void -init_spec() -{ - struct spec_list *next = (struct spec_list *)0; - struct spec_list *sl = (struct spec_list *)0; - int i; - - if (specs) - return; /* already initialized */ - - if (verbose_flag) - fprintf(stderr, "Using builtin specs.\n"); - - for (i = (sizeof (static_specs) / sizeof (static_specs[0])) - 1; i >= 0; i--) - { - sl = &static_specs[i]; - sl->next = next; - next = sl; - } - - specs = sl; -} - - -/* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is - removed; If the spec starts with a + then SPEC is added to the end of the - current spec. */ - -static void -set_spec(char *name, char *spec) -{ - struct spec_list *sl; - char *old_spec; - int name_len = strlen(name); - int i; - - /* If this is the first call, initialize the statically allocated specs */ - if (!specs) - { - struct spec_list *next = (struct spec_list *)0; - for (i = (sizeof (static_specs) / sizeof (static_specs[0])) - 1; - i >= 0; i--) - { - sl = &static_specs[i]; - sl->next = next; - next = sl; - } - specs = sl; - } - - /* See if the spec already exists */ - for (sl = specs; sl; sl = sl->next) - if (name_len == sl->name_len && !strcmp(sl->name, name)) - break; - - if (!sl) - { - /* Not found - make it */ - sl = (struct spec_list *) xmalloc(sizeof (struct spec_list)); - sl->name = save_string(name, strlen(name)); - sl->name_len = name_len; - sl->ptr_spec = &sl->ptr; - sl->alloc_p = 0; - *(sl->ptr_spec) = ""; - sl->next = specs; - specs = sl; - } - - old_spec = *(sl->ptr_spec); - *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE((unsigned char)spec[1])) - ? concat(old_spec, spec + 1, NULL) - : save_string(spec, strlen(spec))); - -#ifdef DEBUG_SPECS - if (verbose_flag) - fprintf(stderr, "Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec)); -#endif - - /* Free the old spec */ - if (old_spec && sl->alloc_p) - free(old_spec); - - sl->alloc_p = 1; -} - -/* Accumulate a command (program name and args), and run it. */ - -/* Vector of pointers to arguments in the current line of specifications. */ - -static char **argbuf; - -/* Number of elements allocated in argbuf. */ - -static int argbuf_length; - -/* Number of elements in argbuf currently in use (containing args). */ - -static int argbuf_index; - -/* We want this on by default all the time now. */ -#define MKTEMP_EACH_FILE - - -extern char *make_temp_file (char *); - -/* This is the list of suffixes and codes (%g/%u/%U) and the associated - temp file. */ - -static struct temp_name { - char *suffix; /* suffix associated with the code. */ - int length; /* strlen (suffix). */ - int unique; /* Indicates whether %g or %u/%U was used. */ - char *filename; /* associated filename. */ - int filename_length; /* strlen (filename). */ - struct temp_name *next; -} *temp_names; - - -/* Number of commands executed so far. */ - -static int execution_count; - -/* Number of commands that exited with a signal. */ - -static int signal_count; - -/* Name with which this program was invoked. */ - -static char *programname; - -/* Structures to keep track of prefixes to try when looking for files. */ - -struct prefix_list -{ - char *prefix; /* String to prepend to the path. */ - struct prefix_list *next; /* Next in linked list. */ - int require_machine_suffix; /* Don't use without machine_suffix. */ - /* 2 means try both machine_suffix and just_machine_suffix. */ - int *used_flag_ptr; /* 1 if a file was found with this prefix. */ -}; - -struct path_prefix -{ - struct prefix_list *plist; /* List of prefixes to try */ - int max_len; /* Max length of a prefix in PLIST */ - char *name; /* Name of this list (used in config stuff) */ -}; - -/* List of prefixes to try when looking for executables. */ - -static struct path_prefix exec_prefixes = { 0, 0, "exec" }; - -/* List of prefixes to try when looking for startup (crt0) files. */ - -static struct path_prefix startfile_prefixes = { 0, 0, "startfile" }; - -/* List of prefixes to try when looking for include files. */ - -static struct path_prefix include_prefixes = { 0, 0, "include" }; - -/* Suffix to attach to directories searched for commands. - This looks like `MACHINE/VERSION/'. */ - -static char *machine_suffix = 0; - -/* Suffix to attach to directories searched for commands. - This is just `MACHINE/'. */ - -static char *just_machine_suffix = 0; - -/* Default prefixes to attach to command names. */ - -#ifndef STANDARD_EXEC_PREFIX -#define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/" -#endif /* !defined STANDARD_EXEC_PREFIX */ - -static char *standard_exec_prefix = STANDARD_EXEC_PREFIX; -static char *standard_exec_prefix_1 = "/usr/lib/gcc/"; - -#ifndef STANDARD_STARTFILE_PREFIX -#define STANDARD_STARTFILE_PREFIX "/usr/local/lib/" -#endif /* !defined STANDARD_STARTFILE_PREFIX */ - -static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX; -static char *standard_startfile_prefix_1 = "/lib/"; -static char *standard_startfile_prefix_2 = "/usr/lib/"; - -#ifndef TOOLDIR_BASE_PREFIX -#define TOOLDIR_BASE_PREFIX "/usr/local/" -#endif -static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX; -static char *tooldir_prefix; - -/* CYGNUS LOCAL -- meissner/relative pathnames */ -#ifdef STANDARD_BINDIR_PREFIX -static char *standard_bindir_prefix = STANDARD_BINDIR_PREFIX; -#endif -/* END CYGNUS LOCAL -- meissner/relative pathnames */ - -/* Subdirectory to use for locating libraries. Set by - set_multilib_dir based on the compilation options. */ - -static char *multilib_dir; - -/* Clear out the vector of arguments (after a command is executed). */ - -static void -clear_args() -{ - argbuf_index = 0; -} - -/* Add one argument to the vector at the end. - This is done when a space is seen or at the end of the line. - If DELETE_ALWAYS is nonzero, the arg is a filename - and the file should be deleted eventually. - If DELETE_FAILURE is nonzero, the arg is a filename - and the file should be deleted if this compilation fails. */ - -static void -store_arg(char *arg, int delete_always, int delete_failure) -{ - if (argbuf_index + 1 == argbuf_length) - argbuf - = (char **) xrealloc(argbuf, (argbuf_length *= 2) * sizeof (char *)); - - argbuf[argbuf_index++] = arg; - argbuf[argbuf_index] = 0; - - if (delete_always || delete_failure) - record_temp_file(arg, delete_always, delete_failure); -} - -/* Read compilation specs from a file named FILENAME, - replacing the default ones. - - A suffix which starts with `*' is a definition for - one of the machine-specific sub-specs. The "suffix" should be - * asm, *cc1, *cpp, *link, *startfile, *signed_char, etc. - The corresponding spec is stored in asm_spec, etc., - rather than in the `compilers' vector. - - Anything invalid in the file is a fatal error. */ - -static void -read_specs(char *filename, int main_p) -{ - int desc; - int readlen; - struct stat statbuf; - char *buffer; - register char *p; - - if (verbose_flag) - fprintf(stderr, "Reading specs from %s\n", filename); - - /* Open and stat the file. */ - desc = open(filename, O_RDONLY, 0); - if (desc < 0) - pfatal_with_name(filename); - if (stat(filename, &statbuf) < 0) - pfatal_with_name(filename); - - /* Read contents of file into BUFFER. */ - buffer = xmalloc((unsigned) statbuf.st_size + 1); - readlen = read(desc, buffer, (unsigned) statbuf.st_size); - if (readlen < 0) - pfatal_with_name(filename); - buffer[readlen] = 0; - close(desc); - - /* Scan BUFFER for specs, putting them in the vector. */ - p = buffer; - while (1) - { - char *suffix; - char *spec; - char *in, *out, *p1, *p2, *p3; - - /* Advance P in BUFFER to the next nonblank nocomment line. */ - p = skip_whitespace(p); - if (*p == 0) - break; - - /* Is this a special command that starts with '%'? */ - /* Don't allow this for the main specs file, since it would - encourage people to overwrite it. */ - if (*p == '%' && !main_p) - { - p1 = p; - while (*p && *p != '\n') - p++; - - p++; /* Skip '\n' */ - - if (!strncmp(p1, "%include", sizeof ("%include")-1) - && (p1[sizeof "%include" - 1] == ' ' - || p1[sizeof "%include" - 1] == '\t')) - { - char *new_filename; - - p1 += sizeof ("%include"); - while (*p1 == ' ' || *p1 == '\t') - p1++; - - if (*p1++ != '<' || p[-2] != '>') - fatal("specs %%include syntax malformed after %ld characters", - (long) (p1 - buffer + 1)); - - p[-2] = '\0'; - new_filename = find_a_file(&startfile_prefixes, p1, R_OK); - read_specs(new_filename ? new_filename : p1, FALSE); - continue; - } - else if (!strncmp(p1, "%include_noerr", sizeof "%include_noerr" - 1) - && (p1[sizeof "%include_noerr" - 1] == ' ' - || p1[sizeof "%include_noerr" - 1] == '\t')) - { - char *new_filename; - - p1 += sizeof "%include_noerr"; - while (*p1 == ' ' || *p1 == '\t') p1++; - - if (*p1++ != '<' || p[-2] != '>') - fatal("specs %%include syntax malformed after %ld characters", - (long) (p1 - buffer + 1)); - - p[-2] = '\0'; - new_filename = find_a_file(&startfile_prefixes, p1, R_OK); - if (new_filename) - read_specs(new_filename, FALSE); - else if (verbose_flag) - fprintf(stderr, "Could not find specs file %s\n", p1); - continue; - } - else if (!strncmp(p1, "%rename", sizeof "%rename" - 1) - && (p1[sizeof "%rename" - 1] == ' ' - || p1[sizeof "%rename" - 1] == '\t')) - { - int name_len; - struct spec_list *sl; - - /* Get original name */ - p1 += sizeof "%rename"; - while (*p1 == ' ' || *p1 == '\t') - p1++; - - if (!ISALPHA((unsigned char)*p1)) - fatal("specs %%rename syntax malformed after %ld characters", - (long) (p1 - buffer)); - - p2 = p1; - while (*p2 && !ISSPACE((unsigned char)*p2)) - p2++; - - if (*p2 != ' ' && *p2 != '\t') - fatal("specs %%rename syntax malformed after %ld characters", - (long) (p2 - buffer)); - - name_len = p2 - p1; - *p2++ = '\0'; - while (*p2 == ' ' || *p2 == '\t') - p2++; - - if (!ISALPHA((unsigned char)*p2)) - fatal("specs %%rename syntax malformed after %ld characters", - (long) (p2 - buffer)); - - /* Get new spec name */ - p3 = p2; - while (*p3 && !ISSPACE((unsigned char)*p3)) - p3++; - - if (p3 != p-1) - fatal("specs %%rename syntax malformed after %ld characters", - (long) (p3 - buffer)); - *p3 = '\0'; - - for (sl = specs; sl; sl = sl->next) - if (name_len == sl->name_len && !strcmp(sl->name, p1)) - break; - - if (!sl) - fatal("specs %s spec was not found to be renamed", p1); - - if (strcmp(p1, p2) == 0) - continue; - - if (verbose_flag) - { - fprintf(stderr, "rename spec %s to %s\n", p1, p2); -#ifdef DEBUG_SPECS - fprintf(stderr, "spec is '%s'\n\n", *(sl->ptr_spec)); -#endif - } - - set_spec(p2, *(sl->ptr_spec)); - if (sl->alloc_p) - free(*(sl->ptr_spec)); - - *(sl->ptr_spec) = ""; - sl->alloc_p = 0; - continue; - } - else - fatal("specs unknown %% command after %ld characters", - (long) (p1 - buffer)); - } - - /* Find the colon that should end the suffix. */ - p1 = p; - while (*p1 && *p1 != ':' && *p1 != '\n') - p1++; - - /* The colon shouldn't be missing. */ - if (*p1 != ':') - fatal("specs file malformed after %ld characters", - (long) (p1 - buffer)); - - /* Skip back over trailing whitespace. */ - p2 = p1; - while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) - p2--; - - /* Copy the suffix to a string. */ - suffix = save_string(p, p2 - p); - /* Find the next line. */ - p = skip_whitespace(p1 + 1); - if (p[1] == 0) - fatal("specs file malformed after %ld characters", - (long) (p - buffer)); - - p1 = p; - /* Find next blank line or end of string. */ - while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0'))) - p1++; - - /* Specs end at the blank line and do not include the newline. */ - spec = save_string(p, p1 - p); - p = p1; - - /* Delete backslash-newline sequences from the spec. */ - in = spec; - out = spec; - while (*in != 0) - { - if (in[0] == '\\' && in[1] == '\n') - in += 2; - else if (in[0] == '#') - while (*in && *in != '\n') - in++; - - else - *out++ = *in++; - } - *out = 0; - - if (suffix[0] == '*') - { - if (!strcmp(suffix, "*link_command")) - link_command_spec = spec; - else - set_spec(suffix + 1, spec); - } - else - { - /* Add this pair to the vector. */ - compilers - = ((struct compiler *) - xrealloc(compilers, - (n_compilers + 2) * sizeof (struct compiler))); - - compilers[n_compilers].suffix = suffix; - zero_memory((char *) compilers[n_compilers].spec, - sizeof compilers[n_compilers].spec); - compilers[n_compilers].spec[0] = spec; - n_compilers++; - zero_memory((char *) &compilers[n_compilers], - sizeof compilers[n_compilers]); - } - - if (*suffix == 0) - link_command_spec = spec; - } - - if (link_command_spec == 0) - fatal("spec file has no spec for linking"); -} - -/* Record the names of temporary files we tell compilers to write, - and delete them at the end of the run. */ - -/* This is the common prefix we use to make temp file names. - It is chosen once for each run of this program. - It is substituted into a spec by %g. - Thus, all temp file names contain this prefix. - In practice, all temp file names start with this prefix. - - This prefix comes from the envvar TMPDIR if it is defined; - otherwise, from the P_tmpdir macro if that is defined; - otherwise, in /usr/tmp or /tmp; - or finally the current directory if all else fails. */ - -static char *temp_filename; - -/* Length of the prefix. */ - -static int temp_filename_length; - -/* Define the list of temporary files to delete. */ - -struct temp_file -{ - char *name; - struct temp_file *next; -}; - -/* Queue of files to delete on success or failure of compilation. */ -static struct temp_file *always_delete_queue; -/* Queue of files to delete on failure of compilation. */ -static struct temp_file *failure_delete_queue; - -/* Record FILENAME as a file to be deleted automatically. - ALWAYS_DELETE nonzero means delete it if all compilation succeeds; - otherwise delete it in any case. - FAIL_DELETE nonzero means delete it if a compilation step fails; - otherwise delete it in any case. */ - -static void -record_temp_file(char *filename, int always_delete, int fail_delete) -{ - register char *name; - name = xmalloc(strlen(filename) + 1); - strcpy(name, filename); - - if (always_delete) - { - register struct temp_file *temp; - for (temp = always_delete_queue; temp; temp = temp->next) - if (!strcmp(name, temp->name)) - goto already1; - - temp = (struct temp_file *) xmalloc(sizeof (struct temp_file)); - temp->next = always_delete_queue; - temp->name = name; - always_delete_queue = temp; - -already1:; - } - - if (fail_delete) - { - register struct temp_file *temp; - for (temp = failure_delete_queue; temp; temp = temp->next) - if (!strcmp(name, temp->name)) - goto already2; - - temp = (struct temp_file *) xmalloc(sizeof (struct temp_file)); - temp->next = failure_delete_queue; - temp->name = name; - failure_delete_queue = temp; - -already2:; - } -} - -/* Delete all the temporary files whose names we previously recorded. */ - -static void -delete_if_ordinary(char *name) -{ - struct stat st; -#ifdef DEBUG - int i, c; - - printf("Delete %s? (y or n) ", name); - fflush(stdout); - i = getchar(); - if (i != '\n') - while ((c = getchar()) != '\n' && c != EOF) - ; - - if (i == 'y' || i == 'Y') -#endif /* DEBUG */ - if (stat(name, &st) >= 0 && S_ISREG(st.st_mode)) - if (unlink(name) < 0) - if (verbose_flag) - perror_with_name(name); -} - -static void -delete_temp_files() -{ - register struct temp_file *temp; - - for (temp = always_delete_queue; temp; temp = temp->next) - delete_if_ordinary(temp->name); - always_delete_queue = 0; -} - -/* Delete all the files to be deleted on error. */ - -static void -delete_failure_queue() -{ - register struct temp_file *temp; - - for (temp = failure_delete_queue; temp; temp = temp->next) - delete_if_ordinary(temp->name); -} - -static void -clear_failure_queue() -{ - failure_delete_queue = 0; -} - -/* Build a list of search directories from PATHS. - PREFIX is a string to prepend to the list. - If CHECK_DIR_P is non-zero we ensure the directory exists. - This is used mostly by putenv_from_prefixes so we use `collect_obstack'. - It is also used by the --print-search-dirs flag. */ - -static char * -build_search_list(struct path_prefix *paths, char *prefix, int check_dir_p) -{ - int suffix_len = (machine_suffix) ? strlen(machine_suffix) : 0; - int just_suffix_len - = (just_machine_suffix) ? strlen(just_machine_suffix) : 0; - int first_time = TRUE; - struct prefix_list *pprefix; - - obstack_grow(&collect_obstack, prefix, strlen(prefix)); - - for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next) - { - int len = strlen(pprefix->prefix); - - if (machine_suffix - && (!check_dir_p - || is_directory(pprefix->prefix, machine_suffix, 0))) - { - if (!first_time) - obstack_1grow(&collect_obstack, PATH_SEPARATOR); - - first_time = FALSE; - obstack_grow(&collect_obstack, pprefix->prefix, len); - obstack_grow(&collect_obstack, machine_suffix, suffix_len); - } - - if (just_machine_suffix - && pprefix->require_machine_suffix == 2 - && (!check_dir_p - || is_directory(pprefix->prefix, just_machine_suffix, 0))) - { - if (!first_time) - obstack_1grow(&collect_obstack, PATH_SEPARATOR); - - first_time = FALSE; - obstack_grow(&collect_obstack, pprefix->prefix, len); - obstack_grow(&collect_obstack, just_machine_suffix, - just_suffix_len); - } - - if (!pprefix->require_machine_suffix) - { - if (!first_time) - obstack_1grow(&collect_obstack, PATH_SEPARATOR); - - first_time = FALSE; - obstack_grow(&collect_obstack, pprefix->prefix, len); - } - } - - obstack_1grow(&collect_obstack, '\0'); - return obstack_finish(&collect_obstack); -} - -/* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables - for collect. */ - -static void -putenv_from_prefixes(struct path_prefix *paths, char *env_var) -{ - putenv(build_search_list(paths, env_var, 1)); -} - -/* Search for NAME using the prefix list PREFIXES. MODE is passed to - access to check permissions. - Return 0 if not found, otherwise return its name, allocated with malloc. */ - -static char * -find_a_file(struct path_prefix *pprefix, char *name, int mode) -{ - char *temp; - char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : ""); - struct prefix_list *pl; - int len = pprefix->max_len + strlen(name) + strlen(file_suffix) + 1; - -#ifdef DEFAULT_ASSEMBLER - if (!strcmp(name, "as") && access(DEFAULT_ASSEMBLER, mode) == 0) { - name = DEFAULT_ASSEMBLER; - len = strlen(name)+1; - temp = xmalloc(len); - strcpy(temp, name); - return temp; - } -#endif - -#ifdef DEFAULT_LINKER - if (!strcmp(name, "ld") && access(DEFAULT_LINKER, mode) == 0) { - name = DEFAULT_LINKER; - len = strlen(name)+1; - temp = xmalloc(len); - strcpy(temp, name); - return temp; - } -#endif - - if (machine_suffix) - len += strlen(machine_suffix); - - temp = xmalloc(len); - - /* Determine the filename to execute (special case for absolute paths). */ - - if (*name == '/' || *name == DIR_SEPARATOR - /* Check for disk name on MS-DOS-based systems. */ - || (DIR_SEPARATOR == '\\' && name[1] == ':' - && (name[2] == DIR_SEPARATOR || name[2] == '/'))) - { - if (access(name, mode) == 0) - { - strcpy(temp, name); - return temp; - } - } - else - for (pl = pprefix->plist; pl; pl = pl->next) - { - if (machine_suffix) - { - /* Some systems have a suffix for executable files. - So try appending that first. */ - if (file_suffix[0] != 0) - { - strcpy(temp, pl->prefix); - strcat(temp, machine_suffix); - strcat(temp, name); - strcat(temp, file_suffix); - if (access(temp, mode) == 0) - { - if (pl->used_flag_ptr != 0) - *pl->used_flag_ptr = 1; - return temp; - } - } - - /* Now try just the name. */ - strcpy(temp, pl->prefix); - strcat(temp, machine_suffix); - strcat(temp, name); - if (access(temp, mode) == 0) - { - if (pl->used_flag_ptr != 0) - *pl->used_flag_ptr = 1; - return temp; - } - } - - /* Certain prefixes are tried with just the machine type, - not the version. This is used for finding as, ld, etc. */ - if (just_machine_suffix && pl->require_machine_suffix == 2) - { - /* Some systems have a suffix for executable files. - So try appending that first. */ - if (file_suffix[0] != 0) - { - strcpy(temp, pl->prefix); - strcat(temp, just_machine_suffix); - strcat(temp, name); - strcat(temp, file_suffix); - if (access(temp, mode) == 0) - { - if (pl->used_flag_ptr != 0) - *pl->used_flag_ptr = 1; - return temp; - } - } - - strcpy(temp, pl->prefix); - strcat(temp, just_machine_suffix); - strcat(temp, name); - if (access(temp, mode) == 0) - { - if (pl->used_flag_ptr != 0) - *pl->used_flag_ptr = 1; - return temp; - } - } - - /* Certain prefixes can't be used without the machine suffix - when the machine or version is explicitly specified. */ - if (!pl->require_machine_suffix) - { - /* Some systems have a suffix for executable files. - So try appending that first. */ - if (file_suffix[0] != 0) - { - strcpy(temp, pl->prefix); - strcat(temp, name); - strcat(temp, file_suffix); - if (access(temp, mode) == 0) - { - if (pl->used_flag_ptr != 0) - *pl->used_flag_ptr = 1; - return temp; - } - } - - strcpy(temp, pl->prefix); - strcat(temp, name); - if (access(temp, mode) == 0) - { - if (pl->used_flag_ptr != 0) - *pl->used_flag_ptr = 1; - return temp; - } - } - } - - free(temp); - return 0; -} - -/* Add an entry for PREFIX in PLIST. If FIRST is set, it goes - at the start of the list, otherwise it goes at the end. - - If WARN is nonzero, we will warn if no file is found - through this prefix. WARN should point to an int - which will be set to 1 if this entry is used. - - COMPONENT is the value to be passed to update_path. - - REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without - the complete value of machine_suffix. - 2 means try both machine_suffix and just_machine_suffix. */ - -static void -add_prefix(struct path_prefix *pprefix, const char *prefix, const char *component, int first, int require_machine_suffix, int *warn) -{ - struct prefix_list *pl, **prev; - int len; - - if (!first && pprefix->plist) - { - for (pl = pprefix->plist; pl->next; pl = pl->next) - ; - prev = &pl->next; - } - else - prev = &pprefix->plist; - - /* Keep track of the longest prefix */ - - prefix = update_path(prefix, component); - len = strlen(prefix); - if (len > pprefix->max_len) - pprefix->max_len = len; - - pl = (struct prefix_list *) xmalloc(sizeof (struct prefix_list)); - pl->prefix = save_string(prefix, len); - pl->require_machine_suffix = require_machine_suffix; - pl->used_flag_ptr = warn; - if (warn) - *warn = 0; - - if (*prev) - pl->next = *prev; - else - pl->next = (struct prefix_list *) 0; - *prev = pl; -} - -/* Print warnings for any prefixes in the list PPREFIX that were not used. */ - -static void -unused_prefix_warnings(struct path_prefix *pprefix) -{ - struct prefix_list *pl = pprefix->plist; - - while (pl) - { - if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr) - { - if (pl->require_machine_suffix && machine_suffix) - error("file path prefix `%s%s' never used", pl->prefix, - machine_suffix); - else - error("file path prefix `%s' never used", pl->prefix); - - /* Prevent duplicate warnings. */ - *pl->used_flag_ptr = 1; - } - - pl = pl->next; - } -} - - -/* Execute the command specified by the arguments on the current line of spec. - When using pipes, this includes several piped-together commands - with `|' between them. - - Return 0 if successful, -1 if failed. */ - -static int -execute() -{ - int i; - int n_commands; /* # of command. */ - char *string; - struct command - { - char *prog; /* program name. */ - char **argv; /* vector of args. */ - int pid; /* pid of process for this command. */ - }; - - struct command *commands; /* each command buffer with above info. */ - - /* Count # of piped commands. */ - for (n_commands = 1, i = 0; i < argbuf_index; i++) - if (strcmp(argbuf[i], "|") == 0) - n_commands++; - - /* Get storage for each command. */ - commands - = (struct command *) alloca(n_commands * sizeof (struct command)); - - /* Split argbuf into its separate piped processes, - and record info about each one. - Also search for the programs that are to be run. */ - - commands[0].prog = argbuf[0]; /* first command. */ - commands[0].argv = &argbuf[0]; - string = find_a_file(&exec_prefixes, commands[0].prog, X_OK); - - if (string) - commands[0].argv[0] = string; - - for (n_commands = 1, i = 0; i < argbuf_index; i++) - if (strcmp(argbuf[i], "|") == 0) - { /* each command. */ - argbuf[i] = 0; /* termination of command args. */ - commands[n_commands].prog = argbuf[i + 1]; - commands[n_commands].argv = &argbuf[i + 1]; - string = find_a_file(&exec_prefixes, commands[n_commands].prog, X_OK); - if (string) - commands[n_commands].argv[0] = string; - n_commands++; - } - - argbuf[argbuf_index] = 0; - - /* If -v, print what we are about to do, and maybe query. */ - - if (verbose_flag) - { - /* For help listings, put a blank line between sub-processes. */ - if (print_help_list) - fputc('\n', stderr); - - /* Print each piped command as a separate line. */ - for (i = 0; i < n_commands; i++) - { - char **j; - - for (j = commands[i].argv; *j; j++) - fprintf(stderr, " %s", *j); - - /* Print a pipe symbol after all but the last command. */ - if (i + 1 != n_commands) - fprintf(stderr, " |"); - fprintf(stderr, "\n"); - } - fflush(stderr); -#ifdef DEBUG - fprintf(stderr, "\nGo ahead? (y or n) "); - fflush(stderr); - i = getchar(); - if (i != '\n') - while (getchar() != '\n') - ; - - if (i != 'y' && i != 'Y') - return 0; -#endif /* DEBUG */ - } - - /* Run each piped subprocess. */ - - for (i = 0; i < n_commands; i++) - { - char *errmsg_fmt, *errmsg_arg; - char *string = commands[i].argv[0]; - - commands[i].pid = pexecute(string, commands[i].argv, - programname, temp_filename, - &errmsg_fmt, &errmsg_arg, - ((i == 0 ? PEXECUTE_FIRST : 0) - | (i + 1 == n_commands ? PEXECUTE_LAST : 0) - | (string == commands[i].prog - ? PEXECUTE_SEARCH : 0) - | (verbose_flag ? PEXECUTE_VERBOSE : 0))); - - if (commands[i].pid == -1) - pfatal_pexecute(errmsg_fmt, errmsg_arg); - - if (string != commands[i].prog) - free(string); - } - - execution_count++; - - /* Wait for all the subprocesses to finish. - We don't care what order they finish in; - we know that N_COMMANDS waits will get them all. - Ignore subprocesses that we don't know about, - since they can be spawned by the process that exec'ed us. */ - - { - int ret_code = 0; - - for (i = 0; i < n_commands; ) - { - int j; - int status; - int pid; - - pid = pwait(commands[i].pid, &status, 0); - if (pid < 0) - abort(); - - for (j = 0; j < n_commands; j++) - if (commands[j].pid == pid) - { - i++; - if (status != 0) - { - if (WIFSIGNALED(status)) - { - fatal("Internal compiler error: program %s got fatal signal %d", - commands[j].prog, WTERMSIG(status)); - signal_count++; - ret_code = -1; - } - else if (WIFEXITED(status) - && WEXITSTATUS(status) >= MIN_FATAL_STATUS) - ret_code = -1; - } - break; - } - } - return ret_code; - } -} - -/* Find all the switches given to us - and make a vector describing them. - The elements of the vector are strings, one per switch given. - If a switch uses following arguments, then the `part1' field - is the switch itself and the `args' field - is a null-terminated vector containing the following arguments. - The `live_cond' field is 1 if the switch is true in a conditional spec, - -1 if false (overridden by a later switch), and is initialized to zero. - The `valid' field is nonzero if any spec has looked at this switch; - if it remains zero at the end of the run, it must be meaningless. */ - -struct switchstr -{ - char *part1; - char **args; - int live_cond; - int valid; -}; - -static struct switchstr *switches; - -static int n_switches; - -struct infile -{ - char *name; - char *language; -}; - -/* Also a vector of input files specified. */ - -static struct infile *infiles; - -static int n_infiles; - -/* This counts the number of libraries added by LANG_SPECIFIC_DRIVER, so that - we can tell if there were any user supplied any files or libraries. */ - -static int added_libraries; - -/* And a vector of corresponding output files is made up later. */ - -static char **outfiles; - -/* Used to track if none of the -B paths are used. */ -static int warn_B; - -/* Used to track if standard path isn't used and -b or -V is specified. */ -static int warn_std; - -/* Gives value to pass as "warn" to add_prefix for standard prefixes. */ -static int *warn_std_ptr = 0; - -/* Display the command line switches accepted by gcc. */ -static void -display_help() -{ - printf("Usage: %s [options] file...\n", programname); - printf("Options:\n"); - - printf(" --help Display this information\n"); - if (!verbose_flag) - printf(" (Use '-v --help' to display command line options of sub-processes)\n"); - printf(" -dumpspecs Display all of the built in spec strings\n"); - printf(" -dumpversion Display the version of the compiler\n"); - printf(" -dumpmachine Display the compiler's target processor\n"); - printf(" -print-search-dirs Display the directories in the compiler's search path\n"); - printf(" -print-libgcc-file-name Display the name of the compiler's companion library\n"); - printf(" -print-file-name=<lib> Display the full path to library <lib>\n"); - printf(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"); - printf(" -print-multi-directory Display the root directory for versions of libgcc\n"); - printf(" -print-multi-lib Display the mapping between command line options and\n"); - printf(" multiple library search directories\n"); - printf(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"); - printf(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"); - printf(" -Wl,<options> Pass comma-separated <options> on to the linker\n"); - printf(" -Xlinker <arg> Pass <arg> on to the linker\n"); - printf(" -save-temps Do not delete intermediate files\n"); - printf(" -pipe Use pipes rather than intermediate files\n"); - printf(" -specs=<file> Override builtin specs with the contents of <file>\n"); - printf(" -std=<standard> Assume that the input sources are for <standard>\n"); - printf(" -B <directory> Add <directory> to the compiler's search paths\n"); - printf(" -b <machine> Run gcc for target <machine>, if installed\n"); - printf(" -V <version> Run gcc version number <version>, if installed\n"); - printf(" -v Display the programs invoked by the compiler\n"); - printf(" -E Preprocess only; do not compile, assemble or link\n"); - printf(" -S Compile only; do not assemble or link\n"); - printf(" -c Compile and assemble, but do not link\n"); - printf(" -o <file> Place the output into <file>\n"); - printf(" -x <language> Specify the language of the following input files\n"); - printf(" Permissable languages include: c c++ assembler none\n"); - printf(" 'none' means revert to the default behaviour of\n"); - printf(" guessing the language based on the file's extension\n"); - - printf("\nOptions starting with -g, -f, -m, -O or -W are automatically passed on to\n"); - printf("the various sub-processes invoked by %s. In order to pass other options\n", - programname); - printf("on to these processes the -W<letter> options must be used.\n"); - - /* The rest of the options are displayed by invocations of the various - sub-processes. */ -} - -static void -add_preprocessor_option(char *option, int len) -{ - n_preprocessor_options++; - - if (!preprocessor_options) - preprocessor_options - = (char **) xmalloc(n_preprocessor_options * sizeof (char *)); - else - preprocessor_options - = (char **) xrealloc(preprocessor_options, - n_preprocessor_options * sizeof (char *)); - - preprocessor_options [n_preprocessor_options - 1] = save_string(option, len); -} - -static void -add_assembler_option(char *option, int len) -{ - n_assembler_options++; - - if (!assembler_options) - assembler_options - = (char **) xmalloc(n_assembler_options * sizeof (char *)); - else - assembler_options - = (char **) xrealloc(assembler_options, - n_assembler_options * sizeof (char *)); - - assembler_options [n_assembler_options - 1] = save_string(option, len); -} - -static void -add_linker_option(char *option, int len) -{ - n_linker_options++; - - if (!linker_options) - linker_options - = (char **) xmalloc(n_linker_options * sizeof (char *)); - else - linker_options - = (char **) xrealloc(linker_options, - n_linker_options * sizeof (char *)); - - linker_options [n_linker_options - 1] = save_string(option, len); -} - -/* Create the vector `switches' and its contents. - Store its length in `n_switches'. */ - -static void -process_command(int argc, char **argv) -{ - register int i; - char *temp; - char *spec_lang = 0; - int last_language_n_infiles; - int have_c = 0; - int have_o = 0; - int lang_n_infiles = 0; - - n_switches = 0; - n_infiles = 0; - added_libraries = 0; - - /* Figure compiler version from version string. */ - - compiler_version = save_string(version_string, strlen(version_string)); - for (temp = compiler_version; *temp; ++temp) - { - if (*temp == ' ') - { - *temp = '\0'; - break; - } - } - - /* Convert new-style -- options to old-style. */ - translate_options(&argc, &argv); - - - /* Scan argv twice. Here, the first time, just count how many switches - there will be in their vector, and how many input files in theirs. - Here we also parse the switches that cc itself uses (e.g. -v). */ - - for (i = 1; i < argc; i++) - { - if (!strcmp(argv[i], "-dumpspecs")) - { - struct spec_list *sl; - init_spec(); - for (sl = specs; sl; sl = sl->next) - printf("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec)); - exit(0); - } - else if (!strcmp(argv[i], "-dumpversion")) - { - printf("%s\n", spec_version); - exit(0); - } - else if (!strcmp(argv[i], "-dumpmachine")) - { - printf("%s\n", spec_machine); - exit(0); - } - else if (strcmp(argv[i], "-fhelp") == 0) - { - /* translate_options () has turned --help into -fhelp. */ - print_help_list = 1; - - /* We will be passing a dummy file on to the sub-processes. */ - n_infiles++; - n_switches++; - - add_preprocessor_option("--help", 6); - add_assembler_option("--help", 6); - add_linker_option("--help", 6); - } - else if (!strcmp(argv[i], "-print-search-dirs")) - print_search_dirs = 1; - else if (!strcmp(argv[i], "-print-libgcc-file-name")) - print_file_name = "libgcc.a"; - else if (!strncmp(argv[i], "-print-file-name=", 17)) - print_file_name = argv[i] + 17; - else if (!strncmp(argv[i], "-print-prog-name=", 17)) - print_prog_name = argv[i] + 17; - else if (!strcmp(argv[i], "-print-multi-lib")) - print_multi_lib = 1; - else if (!strcmp(argv[i], "-print-multi-directory")) - print_multi_directory = 1; - else if (!strncmp(argv[i], "-Wa,", 4)) - { - int prev, j; - /* Pass the rest of this option to the assembler. */ - - /* Split the argument at commas. */ - prev = 4; - for (j = 4; argv[i][j]; j++) - { - if (argv[i][j] == ',') - { - add_assembler_option(argv[i] + prev, j - prev); - prev = j + 1; - } - } - - /* Record the part after the last comma. */ - add_assembler_option(argv[i] + prev, j - prev); - } - else if (!strncmp(argv[i], "-Wp,", 4)) - { - int prev, j; - /* Pass the rest of this option to the preprocessor. */ - - /* Split the argument at commas. */ - prev = 4; - for (j = 4; argv[i][j]; j++) - { - if (argv[i][j] == ',') - { - add_preprocessor_option(argv[i] + prev, j - prev); - prev = j + 1; - } - } - - /* Record the part after the last comma. */ - add_preprocessor_option(argv[i] + prev, j - prev); - } - else if (strncmp(argv[i], "-Wl,", 4) == 0) - { - int j; - /* Split the argument at commas. */ - for (j = 3; argv[i][j]; j++) - n_infiles += (argv[i][j] == ','); - } - else if (strcmp(argv[i], "-Xlinker") == 0) - { - if (i + 1 == argc) - fatal("argument to `-Xlinker' is missing"); - - n_infiles++; - i++; - } - else if (strncmp(argv[i], "-l", 2) == 0) - n_infiles++; - else if (strcmp(argv[i], "-save-temps") == 0) - { - save_temps_flag = 1; - n_switches++; - } - else if (strcmp(argv[i], "-specs") == 0) - { - struct user_specs *user = (struct user_specs *) - xmalloc(sizeof (struct user_specs)); - if (++i >= argc) - fatal("argument to `-specs' is missing"); - - user->next = (struct user_specs *)0; - user->filename = argv[i]; - if (user_specs_tail) - user_specs_tail->next = user; - else - user_specs_head = user; - user_specs_tail = user; - } - else if (strncmp(argv[i], "-specs=", 7) == 0) - { - struct user_specs *user = (struct user_specs *) - xmalloc(sizeof (struct user_specs)); - if (strlen(argv[i]) == 7) - fatal("argument to `-specs=' is missing"); - - user->next = (struct user_specs *)0; - user->filename = argv[i]+7; - if (user_specs_tail) - user_specs_tail->next = user; - else - user_specs_head = user; - user_specs_tail = user; - } - else if (argv[i][0] == '-' && argv[i][1] != 0) - { - register char *p = &argv[i][1]; - register int c = *p; - - switch (c) - { - case 'b': - n_switches++; - if (p[1] == 0 && i + 1 == argc) - fatal("argument to `-b' is missing"); - if (p[1] == 0) - spec_machine = argv[++i]; - else - spec_machine = p + 1; - - warn_std_ptr = &warn_std; - break; - - case 'B': - { - char *value; - if (p[1] == 0 && i + 1 == argc) - fatal("argument to `-B' is missing"); - if (p[1] == 0) - value = argv[++i]; - else - value = p + 1; - add_prefix(&exec_prefixes, value, NULL, 1, 0, &warn_B); - add_prefix(&startfile_prefixes, value, NULL, - 1, 0, &warn_B); - add_prefix(&include_prefixes, concat(value, "include", - NULL), - NULL, 1, 0, NULL); - - /* As a kludge, if the arg is "[foo/]stageN/", just add - "[foo/]include" to the include prefix. */ - { - int len = strlen(value); - if ((len == 7 - || (len > 7 - && (value[len - 8] == '/' - || value[len - 8] == DIR_SEPARATOR))) - && strncmp(value + len - 7, "stage", 5) == 0 - && ISDIGIT(value[len - 2]) - && (value[len - 1] == '/' - || value[len - 1] == DIR_SEPARATOR)) - { - if (len == 7) - add_prefix(&include_prefixes, "include", NULL, - 1, 0, NULL); - else - { - char *string = xmalloc(len + 1); - strncpy(string, value, len-7); - strcpy(string+len-7, "include"); - add_prefix(&include_prefixes, string, NULL, - 1, 0, NULL); - } - } - } - n_switches++; - } - break; - - case 'v': /* Print our subcommands and print versions. */ - n_switches++; - /* If they do anything other than exactly `-v', don't set - verbose_flag; rather, continue on to give the error. */ - if (p[1] != 0) - break; - verbose_flag++; - break; - - case 'V': - n_switches++; - if (p[1] == 0 && i + 1 == argc) - fatal("argument to `-V' is missing"); - if (p[1] == 0) - spec_version = argv[++i]; - else - spec_version = p + 1; - compiler_version = spec_version; - warn_std_ptr = &warn_std; - - /* Validate the version number. Use the same checks - done when inserting it into a spec. - - The format of the version string is - ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */ - { - char *v = compiler_version; - - /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */ - while (!ISDIGIT(*v)) - v++; - - if (v > compiler_version && v[-1] != '-') - fatal("invalid version number format"); - - /* Set V after the first period. */ - while (ISDIGIT(*v)) - v++; - - if (*v != '.') - fatal("invalid version number format"); - - v++; - while (ISDIGIT(*v)) - v++; - - if (*v != 0 && *v != ' ' && *v != '.' && *v != '-') - fatal("invalid version number format"); - } - break; - - case 'S': - case 'c': - if (p[1] == 0) - { - have_c = 1; - n_switches++; - break; - } - goto normal_switch; - - case 'o': - have_o = 1; - goto normal_switch; - - default: -normal_switch: - n_switches++; - - if (SWITCH_TAKES_ARG(c) > (p[1] != 0)) - i += SWITCH_TAKES_ARG(c) - (p[1] != 0); - else if (WORD_SWITCH_TAKES_ARG(p)) - i += WORD_SWITCH_TAKES_ARG(p); - } - } - else - { - n_infiles++; - lang_n_infiles++; - } - } - - if (have_c && have_o && lang_n_infiles > 1) - fatal("cannot specify -o with -c or -S and multiple compilations"); - - /* Set up the search paths before we go looking for config files. */ - - /* These come before the md prefixes so that we will find gcc's subcommands - (such as cpp) rather than those of the host system. */ - /* Use 2 as fourth arg meaning try just the machine as a suffix, - as well as trying the machine and the version. */ - add_prefix(&exec_prefixes, standard_exec_prefix, "BINUTILS", - 0, 2, warn_std_ptr); - add_prefix(&exec_prefixes, standard_exec_prefix_1, "BINUTILS", - 0, 2, warn_std_ptr); - - add_prefix(&startfile_prefixes, standard_exec_prefix, "BINUTILS", - 0, 1, warn_std_ptr); - add_prefix(&startfile_prefixes, standard_exec_prefix_1, "BINUTILS", - 0, 1, warn_std_ptr); - - tooldir_prefix = concat(tooldir_base_prefix, spec_machine, - dir_separator_str, NULL); - - /* If tooldir is relative, base it on exec_prefixes. A relative - tooldir lets us move the installed tree as a unit. */ - - if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR) - { - tooldir_prefix = concat(standard_exec_prefix, spec_machine, - dir_separator_str, spec_version, - dir_separator_str, tooldir_prefix, NULL); - } - - add_prefix(&exec_prefixes, - concat(tooldir_prefix, "bin", dir_separator_str, NULL), - "BINUTILS", 0, 0, NULL); - add_prefix(&startfile_prefixes, - concat(tooldir_prefix, "lib", dir_separator_str, NULL), - "BINUTILS", 0, 0, NULL); - - /* More prefixes are enabled in main, after we read the specs file - and determine whether this is cross-compilation or not. */ - - - /* Then create the space for the vectors and scan again. */ - - switches = ((struct switchstr *) - xmalloc((n_switches + 1) * sizeof (struct switchstr))); - infiles = (struct infile *) xmalloc((n_infiles + 1) * sizeof (struct infile)); - n_switches = 0; - n_infiles = 0; - last_language_n_infiles = -1; - - /* This, time, copy the text of each switch and store a pointer - to the copy in the vector of switches. - Store all the infiles in their vector. */ - - for (i = 1; i < argc; i++) - { - /* Just skip the switches that were handled by the preceding loop. */ - if (!strncmp(argv[i], "-Wa,", 4)) - ; - else if (!strncmp(argv[i], "-Wp,", 4)) - ; - else if (!strcmp(argv[i], "-print-search-dirs")) - ; - else if (!strcmp(argv[i], "-print-libgcc-file-name")) - ; - else if (!strncmp(argv[i], "-print-file-name=", 17)) - ; - else if (!strncmp(argv[i], "-print-prog-name=", 17)) - ; - else if (!strcmp(argv[i], "-print-multi-lib")) - ; - else if (!strcmp(argv[i], "-print-multi-directory")) - ; - else if (strcmp(argv[i], "-fhelp") == 0) - { - if (verbose_flag) - { - /* Create a dummy input file, so that we can pass --help on to - the various sub-processes. */ - infiles[n_infiles].language = "c"; - infiles[n_infiles++].name = "help-dummy"; - - /* Preserve the --help switch so that it can be caught by the - cc1 spec string. */ - switches[n_switches].part1 = "--help"; - switches[n_switches].args = 0; - switches[n_switches].live_cond = 0; - switches[n_switches].valid = 0; - - n_switches++; - } - } - else if (argv[i][0] == '+' && argv[i][1] == 'e') - { - /* Compensate for the +e options to the C++ front-end; - they're there simply for cfront call-compatibility. We do - some magic in default_compilers to pass them down properly. - Note we deliberately start at the `+' here, to avoid passing - -e0 or -e1 down into the linker. */ - switches[n_switches].part1 = &argv[i][0]; - switches[n_switches].args = 0; - switches[n_switches].live_cond = 0; - switches[n_switches].valid = 0; - n_switches++; - } - else if (strncmp(argv[i], "-Wl,", 4) == 0) - { - int prev, j; - /* Split the argument at commas. */ - prev = 4; - for (j = 4; argv[i][j]; j++) - if (argv[i][j] == ',') - { - infiles[n_infiles].language = "*"; - infiles[n_infiles++].name - = save_string(argv[i] + prev, j - prev); - prev = j + 1; - } - /* Record the part after the last comma. */ - infiles[n_infiles].language = "*"; - infiles[n_infiles++].name = argv[i] + prev; - } - else if (strcmp(argv[i], "-Xlinker") == 0) - { - infiles[n_infiles].language = "*"; - infiles[n_infiles++].name = argv[++i]; - } - else if (strncmp(argv[i], "-l", 2) == 0) - { - infiles[n_infiles].language = "*"; - infiles[n_infiles++].name = argv[i]; - } - else if (strcmp(argv[i], "-specs") == 0) - i++; - else if (strncmp(argv[i], "-specs=", 7) == 0) - ; - /* -save-temps overrides -pipe, so that temp files are produced */ - else if (save_temps_flag && strcmp(argv[i], "-pipe") == 0) - error("Warning: -pipe ignored since -save-temps specified"); - else if (argv[i][0] == '-' && argv[i][1] != 0) - { - register char *p = &argv[i][1]; - register int c = *p; - - if (c == 'x') - { - if (p[1] == 0 && i + 1 == argc) - fatal("argument to `-x' is missing"); - if (p[1] == 0) - spec_lang = argv[++i]; - else - spec_lang = p + 1; - if (!strcmp(spec_lang, "none")) - /* Suppress the warning if -xnone comes after the last input - file, because alternate command interfaces like g++ might - find it useful to place -xnone after each input file. */ - spec_lang = 0; - else - last_language_n_infiles = n_infiles; - continue; - } - switches[n_switches].part1 = p; - /* Deal with option arguments in separate argv elements. */ - if ((SWITCH_TAKES_ARG(c) > (p[1] != 0)) - || WORD_SWITCH_TAKES_ARG(p)) - { - int j = 0; - int n_args = WORD_SWITCH_TAKES_ARG(p); - - if (n_args == 0) - { - /* Count only the option arguments in separate argv elements. */ - n_args = SWITCH_TAKES_ARG(c) - (p[1] != 0); - } - if (i + n_args >= argc) - fatal("argument to `-%s' is missing", p); - switches[n_switches].args - = (char **) xmalloc((n_args + 1) * sizeof (char *)); - while (j < n_args) - switches[n_switches].args[j++] = argv[++i]; - /* Null-terminate the vector. */ - switches[n_switches].args[j] = 0; - } - else if (strchr(switches_need_spaces, c)) - { - /* On some systems, ld cannot handle some options without - a space. So split the option from its argument. */ - char *part1 = (char *) xmalloc(2); - part1[0] = c; - part1[1] = '\0'; - - switches[n_switches].part1 = part1; - switches[n_switches].args = (char **) xmalloc(2 * sizeof (char *)); - switches[n_switches].args[0] = xmalloc(strlen(p)); - strcpy(switches[n_switches].args[0], &p[1]); - switches[n_switches].args[1] = 0; - } - else - switches[n_switches].args = 0; - - switches[n_switches].live_cond = 0; - switches[n_switches].valid = 0; - /* This is always valid, since gcc.c itself understands it. */ - if (!strcmp(p, "save-temps")) - switches[n_switches].valid = 1; - else - { - char ch = switches[n_switches].part1[0]; - if (ch == 'V' || ch == 'b' || ch == 'B') - switches[n_switches].valid = 1; - } - n_switches++; - } - else - { - if (strcmp(argv[i], "-") != 0 && access(argv[i], R_OK) < 0) - { - perror_with_name(argv[i]); - error_count++; - } - else - { - infiles[n_infiles].language = spec_lang; - infiles[n_infiles++].name = argv[i]; - } - } - } - - if (n_infiles == last_language_n_infiles && spec_lang != 0) - error("Warning: `-x %s' after last input file has no effect", spec_lang); - - switches[n_switches].part1 = 0; - infiles[n_infiles].name = 0; -} - -/* Process a spec string, accumulating and running commands. */ - -/* These variables describe the input file name. - input_file_number is the index on outfiles of this file, - so that the output file name can be stored for later use by %o. - input_basename is the start of the part of the input file - sans all directory names, and basename_length is the number - of characters starting there excluding the suffix .c or whatever. */ - -char *input_filename; -static int input_file_number; -size_t input_filename_length; -static int basename_length; -static char *input_basename; -static char *input_suffix; - -/* These are variables used within do_spec and do_spec_1. */ - -/* Nonzero if an arg has been started and not yet terminated - (with space, tab or newline). */ -static int arg_going; - -/* Nonzero means %d or %g has been seen; the next arg to be terminated - is a temporary file name. */ -static int delete_this_arg; - -/* Nonzero means %w has been seen; the next arg to be terminated - is the output file name of this compilation. */ -static int this_is_output_file; - -/* Nonzero means %s has been seen; the next arg to be terminated - is the name of a library file and we should try the standard - search dirs for it. */ -static int this_is_library_file; - -/* Nonzero means that the input of this command is coming from a pipe. */ -static int input_from_pipe; - -/* Process the spec SPEC and run the commands specified therein. - Returns 0 if the spec is successfully processed; -1 if failed. */ - -int -do_spec(char *spec) -{ - int value; - - clear_args(); - arg_going = 0; - delete_this_arg = 0; - this_is_output_file = 0; - this_is_library_file = 0; - input_from_pipe = 0; - - value = do_spec_1(spec, 0, NULL); - - /* Force out any unfinished command. - If -pipe, this forces out the last command if it ended in `|'. */ - if (value == 0) - { - if (argbuf_index > 0 && !strcmp(argbuf[argbuf_index - 1], "|")) - argbuf_index--; - - if (argbuf_index > 0) - value = execute(); - } - - return value; -} - -/* Process the sub-spec SPEC as a portion of a larger spec. - This is like processing a whole spec except that we do - not initialize at the beginning and we do not supply a - newline by default at the end. - INSWITCH nonzero means don't process %-sequences in SPEC; - in this case, % is treated as an ordinary character. - This is used while substituting switches. - INSWITCH nonzero also causes SPC not to terminate an argument. - - Value is zero unless a line was finished - and the command on that line reported an error. */ - -static int -do_spec_1(char *spec, int inswitch, char *soft_matched_part) -{ - register char *p = spec; - register int c; - int i; - char *string; - int value; - - while ((c = *p++)) - /* If substituting a switch, treat all chars like letters. - Otherwise, NL, SPC, TAB and % are special. */ - switch (inswitch ? 'a' : c) - { - case '\n': - /* End of line: finish any pending argument, - then run the pending command if one has been started. */ - if (arg_going) - { - obstack_1grow(&obstack, 0); - string = obstack_finish(&obstack); - if (this_is_library_file) - string = find_file(string); - store_arg(string, delete_this_arg, this_is_output_file); - if (this_is_output_file) - outfiles[input_file_number] = string; - } - arg_going = 0; - - if (argbuf_index > 0 && !strcmp(argbuf[argbuf_index - 1], "|")) - { - for (i = 0; i < n_switches; i++) - if (!strcmp(switches[i].part1, "pipe")) - break; - - /* A `|' before the newline means use a pipe here, - but only if -pipe was specified. - Otherwise, execute now and don't pass the `|' as an arg. */ - if (i < n_switches) - { - input_from_pipe = 1; - switches[i].valid = 1; - break; - } - else - argbuf_index--; - } - - if (argbuf_index > 0) - { - value = execute(); - if (value) - return value; - } - /* Reinitialize for a new command, and for a new argument. */ - clear_args(); - arg_going = 0; - delete_this_arg = 0; - this_is_output_file = 0; - this_is_library_file = 0; - input_from_pipe = 0; - break; - - case '|': - /* End any pending argument. */ - if (arg_going) - { - obstack_1grow(&obstack, 0); - string = obstack_finish(&obstack); - if (this_is_library_file) - string = find_file(string); - store_arg(string, delete_this_arg, this_is_output_file); - if (this_is_output_file) - outfiles[input_file_number] = string; - } - - /* Use pipe */ - obstack_1grow(&obstack, c); - arg_going = 1; - break; - - case '\t': - case ' ': - /* Space or tab ends an argument if one is pending. */ - if (arg_going) - { - obstack_1grow(&obstack, 0); - string = obstack_finish(&obstack); - if (this_is_library_file) - string = find_file(string); - store_arg(string, delete_this_arg, this_is_output_file); - if (this_is_output_file) - outfiles[input_file_number] = string; - } - /* Reinitialize for a new argument. */ - arg_going = 0; - delete_this_arg = 0; - this_is_output_file = 0; - this_is_library_file = 0; - break; - - case '%': - switch (c = *p++) - { - case 0: - fatal("Invalid specification! Bug in cc."); - - case 'b': - obstack_grow(&obstack, input_basename, basename_length); - arg_going = 1; - break; - - case 'd': - delete_this_arg = 2; - break; - - /* Dump out the directories specified with LIBRARY_PATH, - followed by the absolute directories - that we search for startfiles. */ - case 'D': - { - struct prefix_list *pl = startfile_prefixes.plist; - size_t bufsize = 100; - char *buffer = (char *) xmalloc(bufsize); - int idx; - - for (; pl; pl = pl->next) - { -#ifdef RELATIVE_PREFIX_NOT_LINKDIR - /* Used on systems which record the specified -L dirs - and use them to search for dynamic linking. */ - /* Relative directories always come from -B, - and it is better not to use them for searching - at run time. In particular, stage1 loses */ - if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR) - continue; -#endif - /* Try subdirectory if there is one. */ - if (multilib_dir != NULL) - { - if (machine_suffix) - { - if (strlen(pl->prefix) + strlen(machine_suffix) - >= bufsize) - bufsize = (strlen(pl->prefix) - + strlen(machine_suffix)) * 2 + 1; - buffer = (char *) xrealloc(buffer, bufsize); - strcpy(buffer, pl->prefix); - strcat(buffer, machine_suffix); - if (is_directory(buffer, multilib_dir, 1)) - { - do_spec_1("-L", 0, NULL); -#ifdef SPACE_AFTER_L_OPTION - do_spec_1(" ", 0, NULL); -#endif - do_spec_1(buffer, 1, NULL); - do_spec_1(multilib_dir, 1, NULL); - /* Make this a separate argument. */ - do_spec_1(" ", 0, NULL); - } - } - if (!pl->require_machine_suffix) - { - if (is_directory(pl->prefix, multilib_dir, 1)) - { - do_spec_1("-L", 0, NULL); -#ifdef SPACE_AFTER_L_OPTION - do_spec_1(" ", 0, NULL); -#endif - do_spec_1(pl->prefix, 1, NULL); - do_spec_1(multilib_dir, 1, NULL); - /* Make this a separate argument. */ - do_spec_1(" ", 0, NULL); - } - } - } - if (machine_suffix) - { - if (is_directory(pl->prefix, machine_suffix, 1)) - { - do_spec_1("-L", 0, NULL); -#ifdef SPACE_AFTER_L_OPTION - do_spec_1(" ", 0, NULL); -#endif - do_spec_1(pl->prefix, 1, NULL); - /* Remove slash from machine_suffix. */ - if (strlen(machine_suffix) >= bufsize) - bufsize = strlen(machine_suffix) * 2 + 1; - buffer = (char *) xrealloc(buffer, bufsize); - strcpy(buffer, machine_suffix); - idx = strlen(buffer); - if (buffer[idx - 1] == '/' - || buffer[idx - 1] == DIR_SEPARATOR) - buffer[idx - 1] = 0; - do_spec_1(buffer, 1, NULL); - /* Make this a separate argument. */ - do_spec_1(" ", 0, NULL); - } - } - if (!pl->require_machine_suffix) - { - if (is_directory(pl->prefix, "", 1)) - { - do_spec_1("-L", 0, NULL); -#ifdef SPACE_AFTER_L_OPTION - do_spec_1(" ", 0, NULL); -#endif - /* Remove slash from pl->prefix. */ - if (strlen(pl->prefix) >= bufsize) - bufsize = strlen(pl->prefix) * 2 + 1; - buffer = (char *) xrealloc(buffer, bufsize); - strcpy(buffer, pl->prefix); - idx = strlen(buffer); - if (buffer[idx - 1] == '/' - || buffer[idx - 1] == DIR_SEPARATOR) - buffer[idx - 1] = 0; - do_spec_1(buffer, 1, NULL); - /* Make this a separate argument. */ - do_spec_1(" ", 0, NULL); - } - } - } - free(buffer); - } - break; - - case 'e': - /* {...:%efoo} means report an error with `foo' as error message - and don't execute any more commands for this file. */ - { - char *q = p; - char *buf; - while (*p != 0 && *p != '\n') p++; - buf = (char *) alloca(p - q + 1); - strncpy(buf, q, p - q); - buf[p - q] = 0; - error("%s", buf); - return -1; - } - break; - - case 'g': - case 'u': - case 'U': - if (save_temps_flag) - { - obstack_grow(&obstack, input_basename, basename_length); - delete_this_arg = 0; - } - else - { - /* ??? This has a problem: the total number of - values mktemp can return is limited. - That matters for the names of object files. - In 2.4, do something about that. */ - struct temp_name *t; - int suffix_length; - char *suffix = p; - - if (p[0] == '%' && p[1] == 'O') - { - /* We don't support extra suffix characters after %O. */ - if (*p == '.' || ISALPHA((unsigned char)*p)) - abort(); - suffix = OBJECT_SUFFIX; - suffix_length = strlen(OBJECT_SUFFIX); - p += 2; - } - else - { - while (*p == '.' || ISALPHA((unsigned char)*p)) - p++; - suffix_length = p - suffix; - } - - /* See if we already have an association of %g/%u/%U and - suffix. */ - for (t = temp_names; t; t = t->next) - if (t->length == suffix_length - && strncmp(t->suffix, suffix, suffix_length) == 0 - && t->unique == (c != 'g')) - break; - - /* Make a new association if needed. %u requires one. */ - if (t == 0 || c == 'u') - { - if (t == 0) - { - t = (struct temp_name *) xmalloc(sizeof (struct temp_name)); - t->next = temp_names; - temp_names = t; - } - t->length = suffix_length; - t->suffix = save_string(suffix, suffix_length); - t->unique = (c != 'g'); - temp_filename = make_temp_file(t->suffix); - temp_filename_length = strlen(temp_filename); - t->filename = temp_filename; - t->filename_length = temp_filename_length; - } - - obstack_grow(&obstack, t->filename, t->filename_length); - delete_this_arg = 1; - delete_this_arg = 1; - } - arg_going = 1; - break; - - case 'i': - obstack_grow(&obstack, input_filename, input_filename_length); - arg_going = 1; - break; - - case 'I': - { - struct prefix_list *pl = include_prefixes.plist; - - for (; pl; pl = pl->next) - { - do_spec_1("-isystem", 1, NULL); - /* Make this a separate argument. */ - do_spec_1(" ", 0, NULL); - do_spec_1(pl->prefix, 1, NULL); - do_spec_1(" ", 0, NULL); - } - } - break; - - case 'o': - { - int max = n_infiles; - for (i = 0; i < max; i++) - if (outfiles[i]) - store_arg(outfiles[i], 0, 0); - break; - } - - case 'O': - obstack_grow(&obstack, OBJECT_SUFFIX, strlen(OBJECT_SUFFIX)); - arg_going = 1; - break; - - case 's': - this_is_library_file = 1; - break; - - case 'w': - this_is_output_file = 1; - break; - - case 'W': - { - int cur_index = argbuf_index; - /* Handle the {...} following the %W. */ - if (*p != '{') - abort(); - p = handle_braces(p + 1); - if (p == 0) - return -1; - /* If any args were output, mark the last one for deletion - on failure. */ - if (argbuf_index != cur_index) - record_temp_file(argbuf[argbuf_index - 1], 0, 1); - break; - } - - /* %x{OPTION} records OPTION for %X to output. */ - case 'x': - { - char *p1 = p; - char *string; - - /* Skip past the option value and make a copy. */ - if (*p != '{') - abort(); - while (*p++ != '}') - ; - string = save_string(p1 + 1, p - p1 - 2); - - /* See if we already recorded this option. */ - for (i = 0; i < n_linker_options; i++) - if (!strcmp(string, linker_options[i])) - { - free(string); - return 0; - } - - /* This option is new; add it. */ - add_linker_option(string, strlen(string)); - } - break; - - /* Dump out the options accumulated previously using %x. */ - case 'X': - for (i = 0; i < n_linker_options; i++) - { - do_spec_1(linker_options[i], 1, NULL); - /* Make each accumulated option a separate argument. */ - do_spec_1(" ", 0, NULL); - } - break; - - /* Dump out the options accumulated previously using -Wa,. */ - case 'Y': - for (i = 0; i < n_assembler_options; i++) - { - do_spec_1(assembler_options[i], 1, NULL); - /* Make each accumulated option a separate argument. */ - do_spec_1(" ", 0, NULL); - } - break; - - /* Dump out the options accumulated previously using -Wp,. */ - case 'Z': - for (i = 0; i < n_preprocessor_options; i++) - { - do_spec_1(preprocessor_options[i], 1, NULL); - /* Make each accumulated option a separate argument. */ - do_spec_1(" ", 0, NULL); - } - break; - - /* Here are digits and numbers that just process - a certain constant string as a spec. */ - - case '1': - value = do_spec_1(cc1_spec, 0, NULL); - if (value != 0) - return value; - break; - - case 'a': - value = do_spec_1(asm_spec, 0, NULL); - if (value != 0) - return value; - break; - - case 'A': - value = do_spec_1(asm_final_spec, 0, NULL); - if (value != 0) - return value; - break; - - case 'c': - value = do_spec_1(signed_char_spec, 0, NULL); - if (value != 0) - return value; - break; - - case 'C': - value = do_spec_1(cpp_spec, 0, NULL); - if (value != 0) - return value; - break; - - case 'E': - value = do_spec_1(endfile_spec, 0, NULL); - if (value != 0) - return value; - break; - - case 'l': - value = do_spec_1(link_spec, 0, NULL); - if (value != 0) - return value; - break; - - case 'L': - value = do_spec_1(lib_spec, 0, NULL); - if (value != 0) - return value; - break; - - case 'G': - value = do_spec_1(libgcc_spec, 0, NULL); - if (value != 0) - return value; - break; - - case 'p': - { - char *x = (char *) alloca(strlen(cpp_predefines) + 1); - char *buf = x; - char *y; - - /* Copy all of the -D options in CPP_PREDEFINES into BUF. */ - y = cpp_predefines; - while (*y != 0) - { - if (!strncmp(y, "-D", 2)) - /* Copy the whole option. */ - while (*y && *y != ' ' && *y != '\t') - *x++ = *y++; - else if (*y == ' ' || *y == '\t') - /* Copy whitespace to the result. */ - *x++ = *y++; - /* Don't copy other options. */ - else - y++; - } - - *x = 0; - - value = do_spec_1(buf, 0, NULL); - if (value != 0) - return value; - } - break; - - case 'P': - { - char *x = (char *) alloca(strlen(cpp_predefines) * 4 + 1); - char *buf = x; - char *y; - - /* Copy all of CPP_PREDEFINES into BUF, - but put __ after every -D and at the end of each arg. */ - y = cpp_predefines; - while (*y != 0) - { - if (!strncmp(y, "-D", 2)) - { - int flag = 0; - - *x++ = *y++; - *x++ = *y++; - - if (*y != '_' - || (*(y+1) != '_' - && !ISUPPER((unsigned char)*(y+1)))) - { - /* Stick __ at front of macro name. */ - *x++ = '_'; - *x++ = '_'; - /* Arrange to stick __ at the end as well. */ - flag = 1; - } - - /* Copy the macro name. */ - while (*y && *y != '=' && *y != ' ' && *y != '\t') - *x++ = *y++; - - if (flag) - { - *x++ = '_'; - *x++ = '_'; - } - - /* Copy the value given, if any. */ - while (*y && *y != ' ' && *y != '\t') - *x++ = *y++; - } - else if (*y == ' ' || *y == '\t') - /* Copy whitespace to the result. */ - *x++ = *y++; - /* Don't copy -A options */ - else - y++; - } - *x++ = ' '; - - /* Copy all of CPP_PREDEFINES into BUF, - but put __ after every -D. */ - y = cpp_predefines; - while (*y != 0) - { - if (!strncmp(y, "-D", 2)) - { - y += 2; - - if (*y != '_' - || (*(y+1) != '_' - && !ISUPPER((unsigned char)*(y+1)))) - { - /* Stick -D__ at front of macro name. */ - *x++ = '-'; - *x++ = 'D'; - *x++ = '_'; - *x++ = '_'; - - /* Copy the macro name. */ - while (*y && *y != '=' && *y != ' ' && *y != '\t') - *x++ = *y++; - - /* Copy the value given, if any. */ - while (*y && *y != ' ' && *y != '\t') - *x++ = *y++; - } - else - { - /* Do not copy this macro - we have just done it before */ - while (*y && *y != ' ' && *y != '\t') - y++; - } - } - else if (*y == ' ' || *y == '\t') - /* Copy whitespace to the result. */ - *x++ = *y++; - /* Don't copy -A options */ - else - y++; - } - *x++ = ' '; - - /* Copy all of the -A options in CPP_PREDEFINES into BUF. */ - y = cpp_predefines; - while (*y != 0) - { - if (!strncmp(y, "-A", 2)) - /* Copy the whole option. */ - while (*y && *y != ' ' && *y != '\t') - *x++ = *y++; - else if (*y == ' ' || *y == '\t') - /* Copy whitespace to the result. */ - *x++ = *y++; - /* Don't copy other options. */ - else - y++; - } - - *x = 0; - - value = do_spec_1(buf, 0, NULL); - if (value != 0) - return value; - } - break; - - case 'S': - value = do_spec_1(startfile_spec, 0, NULL); - if (value != 0) - return value; - break; - - /* Here we define characters other than letters and digits. */ - - case '{': - p = handle_braces(p); - if (p == 0) - return -1; - break; - - case '%': - obstack_1grow(&obstack, '%'); - break; - - case '*': - do_spec_1(soft_matched_part, 1, NULL); - do_spec_1(" ", 0, NULL); - break; - - /* Process a string found as the value of a spec given by name. - This feature allows individual machine descriptions - to add and use their own specs. - %[...] modifies -D options the way %P does; - %(...) uses the spec unmodified. */ - case '[': - error("Warning: use of obsolete %%[ operator in specs"); - case '(': - { - char *name = p; - struct spec_list *sl; - int len; - - /* The string after the S/P is the name of a spec that is to be - processed. */ - while (*p && *p != ')' && *p != ']') - p++; - - /* See if it's in the list */ - for (len = p - name, sl = specs; sl; sl = sl->next) - if (sl->name_len == len && !strncmp(sl->name, name, len)) - { - name = *(sl->ptr_spec); -#ifdef DEBUG_SPECS - fprintf(stderr, "Processing spec %c%s%c, which is '%s'\n", - c, sl->name, (c == '(') ? ')' : ']', name); -#endif - break; - } - - if (sl) - { - if (c == '(') - { - value = do_spec_1(name, 0, NULL); - if (value != 0) - return value; - } - else - { - char *x = (char *) alloca(strlen(name) * 2 + 1); - char *buf = x; - char *y = name; - int flag = 0; - - /* Copy all of NAME into BUF, but put __ after - every -D and at the end of each arg, */ - while (1) - { - if (!strncmp(y, "-D", 2)) - { - *x++ = '-'; - *x++ = 'D'; - *x++ = '_'; - *x++ = '_'; - y += 2; - flag = 1; - continue; - } - else if (flag && (*y == ' ' || *y == '\t' || *y == '=' - || *y == '}' || *y == 0)) - { - *x++ = '_'; - *x++ = '_'; - flag = 0; - } - if (*y == 0) - break; - else - *x++ = *y++; - } - *x = 0; - - value = do_spec_1(buf, 0, NULL); - if (value != 0) - return value; - } - } - - /* Discard the closing paren or bracket. */ - if (*p) - p++; - } - break; - - case 'v': - { - int c1 = *p++; /* Select first or second version number. */ - char *v = compiler_version; - char *q; - - /* The format of the version string is - ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */ - - /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */ - while (!ISDIGIT(*v)) - v++; - if (v > compiler_version && v[-1] != '-') - abort(); - - /* If desired, advance to second version number. */ - if (c1 == '2') - { - /* Set V after the first period. */ - while (ISDIGIT(*v)) - v++; - if (*v != '.') - abort(); - v++; - } - - /* Set Q at the next period or at the end. */ - q = v; - while (ISDIGIT(*q)) - q++; - if (*q != 0 && *q != ' ' && *q != '.' && *q != '-') - abort(); - - /* Put that part into the command. */ - obstack_grow(&obstack, v, q - v); - arg_going = 1; - } - break; - - case '|': - if (input_from_pipe) - do_spec_1("-", 0, NULL); - break; - - default: - abort(); - } - break; - - case '\\': - /* Backslash: treat next character as ordinary. */ - c = *p++; - - /* fall through */ - default: - /* Ordinary character: put it into the current argument. */ - obstack_1grow(&obstack, c); - arg_going = 1; - } - - return 0; /* End of string */ -} - -/* Return 0 if we call do_spec_1 and that returns -1. */ - -static char * -handle_braces(register char *p) -{ - char *filter, *body = NULL, *endbody; - int pipe_p = 0; - int negate; - int suffix; - int include_blanks = 1; - - if (*p == '^') - /* A '^' after the open-brace means to not give blanks before args. */ - include_blanks = 0, ++p; - - if (*p == '|') - /* A `|' after the open-brace means, - if the test fails, output a single minus sign rather than nothing. - This is used in %{|!pipe:...}. */ - pipe_p = 1, ++p; - -next_member: - negate = suffix = 0; - - if (*p == '!') - /* A `!' after the open-brace negates the condition: - succeed if the specified switch is not present. */ - negate = 1, ++p; - - if (*p == '.') - /* A `.' after the open-brace means test against the current suffix. */ - { - if (pipe_p) - abort(); - - suffix = 1; - ++p; - } - - filter = p; - while (*p != ':' && *p != '}' && *p != '|') p++; - - if (*p == '|' && pipe_p) - abort(); - - if (!body) - { - if (*p != '}') - { - register int count = 1; - register char *q = p; - - while (*q++ != ':') continue; - body = q; - - while (count > 0) - { - if (*q == '{') - count++; - else if (*q == '}') - count--; - else if (*q == 0) - abort(); - q++; - } - endbody = q; - } - else - body = p, endbody = p+1; - } - - if (suffix) - { - int found = (input_suffix != 0 - && (long) strlen(input_suffix) == (long)(p - filter) - && strncmp(input_suffix, filter, p - filter) == 0); - - if (body[0] == '}') - abort(); - - if (negate != found - && do_spec_1(save_string(body, endbody-body-1), 0, NULL) < 0) - return 0; - } - else if (p[-1] == '*' && p[0] == '}') - { - /* Substitute all matching switches as separate args. */ - register int i; - --p; - for (i = 0; i < n_switches; i++) - if (!strncmp(switches[i].part1, filter, p - filter) - && check_live_switch(i, p - filter)) - give_switch(i, 0, include_blanks); - } - else - { - /* Test for presence of the specified switch. */ - register int i; - int present = 0; - - /* If name specified ends in *, as in {x*:...}, - check for %* and handle that case. */ - if (p[-1] == '*' && !negate) - { - int substitution; - char *r = body; - - /* First see whether we have %*. */ - substitution = 0; - while (r < endbody) - { - if (*r == '%' && r[1] == '*') - substitution = 1; - r++; - } - /* If we do, handle that case. */ - if (substitution) - { - /* Substitute all matching switches as separate args. - But do this by substituting for %* - in the text that follows the colon. */ - - unsigned hard_match_len = p - filter - 1; - char *string = save_string(body, endbody - body - 1); - - for (i = 0; i < n_switches; i++) - if (!strncmp(switches[i].part1, filter, hard_match_len) - && check_live_switch(i, -1)) - { - do_spec_1(string, 0, &switches[i].part1[hard_match_len]); - /* Pass any arguments this switch has. */ - give_switch(i, 1, 1); - } - - /* We didn't match. Try again. */ - if (*p++ == '|') - goto next_member; - return endbody; - } - } - - /* If name specified ends in *, as in {x*:...}, - check for presence of any switch name starting with x. */ - if (p[-1] == '*') - { - for (i = 0; i < n_switches; i++) - { - unsigned hard_match_len = p - filter - 1; - - if (!strncmp(switches[i].part1, filter, hard_match_len) - && check_live_switch(i, hard_match_len)) - { - present = 1; - } - } - } - /* Otherwise, check for presence of exact name specified. */ - else - { - for (i = 0; i < n_switches; i++) - { - if (!strncmp(switches[i].part1, filter, p - filter) - && switches[i].part1[p - filter] == 0 - && check_live_switch(i, -1)) - { - present = 1; - break; - } - } - } - - /* If it is as desired (present for %{s...}, absent for %{!s...}) - then substitute either the switch or the specified - conditional text. */ - if (present != negate) - { - if (*p == '}') - { - give_switch(i, 0, include_blanks); - } - else - { - if (do_spec_1(save_string(body, endbody - body - 1), - 0, NULL) < 0) - return 0; - } - } - else if (pipe_p) - { - /* Here if a %{|...} conditional fails: output a minus sign, - which means "standard output" or "standard input". */ - do_spec_1("-", 0, NULL); - return endbody; - } - } - - /* We didn't match; try again. */ - if (*p++ == '|') - goto next_member; - - return endbody; -} - -/* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch - on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*} - spec, or -1 if either exact match or %* is used. - - A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch - whose value does not begin with "no-" is obsoleted by the same value - with the "no-", similarly for a switch with the "no-" prefix. */ - -static int -check_live_switch(int switchnum, int prefix_length) -{ - char *name = switches[switchnum].part1; - int i; - - /* In the common case of {<at-most-one-letter>*}, a negating - switch would always match, so ignore that case. We will just - send the conflicting switches to the compiler phase. */ - if (prefix_length >= 0 && prefix_length <= 1) - return 1; - - /* If we already processed this switch and determined if it was - live or not, return our past determination. */ - if (switches[switchnum].live_cond != 0) - return switches[switchnum].live_cond > 0; - - /* Now search for duplicate in a manner that depends on the name. */ - switch (*name) - { - case 'O': - for (i = switchnum + 1; i < n_switches; i++) - if (switches[i].part1[0] == 'O') - { - switches[switchnum].valid = 1; - switches[switchnum].live_cond = -1; - return 0; - } - break; - - case 'W': case 'f': case 'm': - if (!strncmp(name + 1, "no-", 3)) - { - /* We have Xno-YYY, search for XYYY. */ - for (i = switchnum + 1; i < n_switches; i++) - if (switches[i].part1[0] == name[0] - && !strcmp(&switches[i].part1[1], &name[4])) - { - switches[switchnum].valid = 1; - switches[switchnum].live_cond = -1; - return 0; - } - } - else - { - /* We have XYYY, search for Xno-YYY. */ - for (i = switchnum + 1; i < n_switches; i++) - if (switches[i].part1[0] == name[0] - && switches[i].part1[1] == 'n' - && switches[i].part1[2] == 'o' - && switches[i].part1[3] == '-' - && !strcmp(&switches[i].part1[4], &name[1])) - { - switches[switchnum].valid = 1; - switches[switchnum].live_cond = -1; - return 0; - } - } - break; - } - - /* Otherwise the switch is live. */ - switches[switchnum].live_cond = 1; - return 1; -} - -/* Pass a switch to the current accumulating command - in the same form that we received it. - SWITCHNUM identifies the switch; it is an index into - the vector of switches gcc received, which is `switches'. - This cannot fail since it never finishes a command line. - - If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. - - If INCLUDE_BLANKS is nonzero, then we include blanks before each argument - of the switch. */ - -static void -give_switch(int switchnum, int omit_first_word, int include_blanks) -{ - if (!omit_first_word) - { - do_spec_1("-", 0, NULL); - do_spec_1(switches[switchnum].part1, 1, NULL); - } - - if (switches[switchnum].args != 0) - { - char **p; - for (p = switches[switchnum].args; *p; p++) - { - if (include_blanks) - do_spec_1(" ", 0, NULL); - do_spec_1(*p, 1, NULL); - } - } - - do_spec_1(" ", 0, NULL); - switches[switchnum].valid = 1; -} - -/* Search for a file named NAME trying various prefixes including the - user's -B prefix and some standard ones. - Return the absolute file name found. If nothing is found, return NAME. */ - -static char * -find_file(char *name) -{ - char *newname; - - /* Try multilib_dir if it is defined. */ - if (multilib_dir != NULL) - { - char *try; - - try = (char *) alloca(strlen(multilib_dir) + strlen(name) + 2); - strcpy(try, multilib_dir); - strcat(try, dir_separator_str); - strcat(try, name); - - newname = find_a_file(&startfile_prefixes, try, R_OK); - - /* If we don't find it in the multi library dir, then fall - through and look for it in the normal places. */ - if (newname != NULL) - return newname; - } - - newname = find_a_file(&startfile_prefixes, name, R_OK); - return newname ? newname : name; -} - -/* Determine whether a directory exists. If LINKER, return 0 for - certain fixed names not needed by the linker. If not LINKER, it is - only important to return 0 if the host machine has a small ARG_MAX - limit. */ - -static int -is_directory(char *path1, char *path2, int linker) -{ - int len1 = strlen(path1); - int len2 = strlen(path2); - char *path = (char *) alloca(3 + len1 + len2); - char *cp; - struct stat st; - -#ifndef SMALL_ARG_MAX - if (!linker) - return 1; -#endif - - /* Construct the path from the two parts. Ensure the string ends with "/.". - The resulting path will be a directory even if the given path is a - symbolic link. */ - memcpy(path, path1, len1); - memcpy(path + len1, path2, len2); - cp = path + len1 + len2; - if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR) - *cp++ = DIR_SEPARATOR; - *cp++ = '.'; - *cp = '\0'; - - /* Exclude directories that the linker is known to search. */ - if (linker - && ((cp - path == 6 - && strcmp(path, concat(dir_separator_str, "lib", - dir_separator_str, ".", NULL)) == 0) - || (cp - path == 10 - && strcmp(path, concat(dir_separator_str, "usr", - dir_separator_str, "lib", - dir_separator_str, ".", NULL)) == 0))) - return 0; - - return (stat(path, &st) >= 0 && S_ISDIR(st.st_mode)); -} - -/* On fatal signals, delete all the temporary files. */ - -static void -fatal_error(int signum) -{ - signal(signum, SIG_DFL); - delete_failure_queue(); - delete_temp_files(); - /* Get the same signal again, this time not handled, - so its normal effect occurs. */ - kill(getpid(), signum); -} - -int -main(int argc, char **argv) -{ - register size_t i; - size_t j; - int value; - int linker_was_run = 0; - char *explicit_link_files; - char *specs_file; - char *p; - struct user_specs *uptr; - - p = argv[0] + strlen(argv[0]); - while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p; - programname = p; - - if (signal(SIGINT, SIG_IGN) != SIG_IGN) - signal(SIGINT, fatal_error); -#ifdef SIGHUP - if (signal(SIGHUP, SIG_IGN) != SIG_IGN) - signal(SIGHUP, fatal_error); -#endif - if (signal(SIGTERM, SIG_IGN) != SIG_IGN) - signal(SIGTERM, fatal_error); -#ifdef SIGPIPE - if (signal(SIGPIPE, SIG_IGN) != SIG_IGN) - signal(SIGPIPE, fatal_error); -#endif - - argbuf_length = 10; - argbuf = (char **) xmalloc(argbuf_length * sizeof (char *)); - - obstack_init(&obstack); - - /* Build multilib_select, et. al from the separate lines that make up each - multilib selection. */ - { - char **q = multilib_raw; - int need_space; - - obstack_init(&multilib_obstack); - while ((p = *q++) != (char *) 0) - obstack_grow(&multilib_obstack, p, strlen(p)); - - obstack_1grow(&multilib_obstack, 0); - multilib_select = obstack_finish(&multilib_obstack); - - q = multilib_matches_raw; - while ((p = *q++) != (char *) 0) - obstack_grow(&multilib_obstack, p, strlen(p)); - - obstack_1grow(&multilib_obstack, 0); - multilib_matches = obstack_finish(&multilib_obstack); - - need_space = FALSE; - for (i = 0; - i < sizeof (multilib_defaults_raw) / sizeof (multilib_defaults_raw[0]); - i++) - { - if (need_space) - obstack_1grow(&multilib_obstack, ' '); - obstack_grow(&multilib_obstack, - multilib_defaults_raw[i], - strlen(multilib_defaults_raw[i])); - need_space = TRUE; - } - - obstack_1grow(&multilib_obstack, 0); - multilib_defaults = obstack_finish(&multilib_obstack); - } - - /* Set up to remember the pathname of gcc and any options - needed for collect. We use argv[0] instead of programname because - we need the complete pathname. */ - obstack_init(&collect_obstack); - obstack_grow(&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1); - obstack_grow(&collect_obstack, argv[0], strlen(argv[0])+1); - putenv(obstack_finish(&collect_obstack)); - -#ifdef INIT_ENVIRONMENT - /* Set up any other necessary machine specific environment variables. */ - putenv(INIT_ENVIRONMENT); -#endif - - /* Choose directory for temp files. */ - - - /* Make a table of what switches there are (switches, n_switches). - Make a table of specified input files (infiles, n_infiles). - Decode switches that are handled locally. */ - - process_command(argc, argv); - - { - int first_time; - - /* Build COLLECT_GCC_OPTIONS to have all of the options specified to - the compiler. */ - obstack_grow(&collect_obstack, "COLLECT_GCC_OPTIONS=", - sizeof ("COLLECT_GCC_OPTIONS=")-1); - - first_time = TRUE; - for (i = 0; (int)i < n_switches; i++) - { - char **args; - char *p, *q; - if (!first_time) - obstack_grow(&collect_obstack, " ", 1); - - first_time = FALSE; - obstack_grow(&collect_obstack, "'-", 2); - q = switches[i].part1; - while ((p = strchr(q,'\''))) - { - obstack_grow(&collect_obstack, q, p-q); - obstack_grow(&collect_obstack, "'\\''", 4); - q = ++p; - } - obstack_grow(&collect_obstack, q, strlen(q)); - obstack_grow(&collect_obstack, "'", 1); - - for (args = switches[i].args; args && *args; args++) - { - obstack_grow(&collect_obstack, " '", 2); - q = *args; - while ((p = strchr(q,'\''))) - { - obstack_grow(&collect_obstack, q, p-q); - obstack_grow(&collect_obstack, "'\\''", 4); - q = ++p; - } - obstack_grow(&collect_obstack, q, strlen(q)); - obstack_grow(&collect_obstack, "'", 1); - } - } - obstack_grow(&collect_obstack, "\0", 1); - putenv(obstack_finish(&collect_obstack)); - } - - /* Initialize the vector of specs to just the default. - This means one element containing 0s, as a terminator. */ - - compilers = (struct compiler *) xmalloc(sizeof default_compilers); - copy_memory((char *) default_compilers, (char *) compilers, - sizeof default_compilers); - n_compilers = n_default_compilers; - - /* Read specs from a file if there is one. */ - - machine_suffix = concat(spec_machine, dir_separator_str, - spec_version, dir_separator_str, NULL); - just_machine_suffix = concat(spec_machine, dir_separator_str, NULL); - - specs_file = find_a_file(&startfile_prefixes, "specs", R_OK); - /* Read the specs file unless it is a default one. */ - if (specs_file != 0 && strcmp(specs_file, "specs")) - read_specs(specs_file, TRUE); - else - init_spec(); - - /* We need to check standard_exec_prefix/just_machine_suffix/specs - for any override of as, ld and libraries. */ - specs_file = (char *) alloca(strlen(standard_exec_prefix) - + strlen(just_machine_suffix) - + sizeof ("specs")); - - strcpy(specs_file, standard_exec_prefix); - strcat(specs_file, just_machine_suffix); - strcat(specs_file, "specs"); - if (access(specs_file, R_OK) == 0) - read_specs(specs_file, TRUE); - - /* Process any user specified specs in the order given on the command - line. */ - for (uptr = user_specs_head; uptr; uptr = uptr->next) - { - char *filename = find_a_file(&startfile_prefixes, uptr->filename, R_OK); - read_specs(filename ? filename : uptr->filename, FALSE); - } - - /* Now we have the specs. - Set the `valid' bits for switches that match anything in any spec. */ - - validate_all_switches(); - - /* Now that we have the switches and the specs, set - the subdirectory based on the options. */ - set_multilib_dir(); - - /* Warn about any switches that no pass was interested in. */ - - for (i = 0; (int)i < n_switches; i++) - if (!switches[i].valid) - error("unrecognized option `-%s'", switches[i].part1); - - /* Obey some of the options. */ - - if (print_search_dirs) - { - printf("install: %s%s\n", standard_exec_prefix, machine_suffix); - printf("programs: %s\n", build_search_list(&exec_prefixes, "", 0)); - printf("libraries: %s\n", build_search_list(&startfile_prefixes, "", 0)); - exit(0); - } - - if (print_file_name) - { - printf("%s\n", find_file(print_file_name)); - exit(0); - } - - if (print_prog_name) - { - char *newname = find_a_file(&exec_prefixes, print_prog_name, X_OK); - printf("%s\n", (newname ? newname : print_prog_name)); - exit(0); - } - - if (print_multi_lib) - { - print_multilib_info(); - exit(0); - } - - if (print_multi_directory) - { - if (multilib_dir == NULL) - printf(".\n"); - else - printf("%s\n", multilib_dir); - exit(0); - } - - if (print_help_list) - { - display_help(); - - if (!verbose_flag) - { - printf("\nReport bugs to egcs-bugs@cygnus.com.\n"); - printf("Please see the file BUGS (included with the sources) first.\n"); - - exit(0); - } - - /* We do not exit here. Instead we have created a fake input file - called 'help-dummy' which needs to be compiled, and we pass this - on the the various sub-processes, along with the --help switch. */ - } - - if (verbose_flag) - { - int n; - - /* compiler_version is truncated at the first space when initialized - from version string, so truncate version_string at the first space - before comparing. */ - for (n = 0; version_string[n]; n++) - if (version_string[n] == ' ') - break; - - if (!strncmp(version_string, compiler_version, n) - && compiler_version[n] == 0) - fprintf(stderr, "gcc version %s\n", version_string); - else - fprintf(stderr, "gcc driver version %s executing gcc version %s\n", - version_string, compiler_version); - /* CYGNUS LOCAL default-options */ - { - /* We can't do this in translate_options, where we handle the environment - variable, because the -v flag won't have been seen yet, so we handle - it here instead. */ - char *opts = getenv("GCC_DEFAULT_OPTIONS"); - if (opts) - fprintf(stderr, "GCC_DEFAULT_OPTIONS=%s\n", opts); - } - /* END CYGNUS LOCAL */ - - if (n_infiles == 0) - exit(0); - } - - if (n_infiles == added_libraries) - fatal("No input files"); - - /* Make a place to record the compiler output file names - that correspond to the input files. */ - - i = n_infiles; - outfiles = (char **) xmalloc(i * sizeof (char *)); - zero_memory((char *) outfiles, i * sizeof (char *)); - - /* Record which files were specified explicitly as link input. */ - - explicit_link_files = xmalloc(n_infiles); - zero_memory(explicit_link_files, n_infiles); - - for (i = 0; (int)i < n_infiles; i++) - { - register struct compiler *cp = 0; - int this_file_error = 0; - - /* Tell do_spec what to substitute for %i. */ - - input_filename = infiles[i].name; - input_filename_length = strlen(input_filename); - input_file_number = i; - - /* Use the same thing in %o, unless cp->spec says otherwise. */ - - outfiles[i] = input_filename; - - /* Figure out which compiler from the file's suffix. */ - - cp = lookup_compiler(infiles[i].name, input_filename_length, - infiles[i].language); - - if (cp) - { - /* Ok, we found an applicable compiler. Run its spec. */ - /* First say how much of input_filename to substitute for %b */ - register char *p; - int len; - - if (cp->spec[0][0] == '#') - error("%s: %s compiler not installed on this system", - input_filename, &cp->spec[0][1]); - - input_basename = input_filename; - for (p = input_filename; *p; p++) - if (*p == '/' || *p == DIR_SEPARATOR) - input_basename = p + 1; - - /* Find a suffix starting with the last period, - and set basename_length to exclude that suffix. */ - basename_length = strlen(input_basename); - p = input_basename + basename_length; - while (p != input_basename && *p != '.') --p; - if (*p == '.' && p != input_basename) - { - basename_length = p - input_basename; - input_suffix = p + 1; - } - else - input_suffix = ""; - - len = 0; - for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++) - if (cp->spec[j]) - len += strlen(cp->spec[j]); - - p = (char *) xmalloc(len + 1); - - len = 0; - for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++) - if (cp->spec[j]) - { - strcpy(p + len, cp->spec[j]); - len += strlen(cp->spec[j]); - } - - value = do_spec(p); - free(p); - if (value < 0) - this_file_error = 1; - } - - /* If this file's name does not contain a recognized suffix, - record it as explicit linker input. */ - - else - explicit_link_files[i] = 1; - - /* Clear the delete-on-failure queue, deleting the files in it - if this compilation failed. */ - - if (this_file_error) - { - delete_failure_queue(); - error_count++; - } - /* If this compilation succeeded, don't delete those files later. */ - clear_failure_queue(); - } - - - /* Run ld to link all the compiler output files. */ - - if (error_count == 0) - { - int tmp = execution_count; - - /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables - for collect. */ - putenv_from_prefixes(&exec_prefixes, "COMPILER_PATH="); - putenv_from_prefixes(&startfile_prefixes, "LIBRARY_PATH="); - - value = do_spec(link_command_spec); - if (value < 0) - error_count = 1; - linker_was_run = (tmp != execution_count); - } - - /* Warn if a -B option was specified but the prefix was never used. */ - unused_prefix_warnings(&exec_prefixes); - unused_prefix_warnings(&startfile_prefixes); - - /* If options said don't run linker, - complain about input files to be given to the linker. */ - - if (!linker_was_run && error_count == 0) - for (i = 0; (int)i < n_infiles; i++) - if (explicit_link_files[i]) - error("%s: linker input file unused since linking not done", - outfiles[i]); - - /* Delete some or all of the temporary files we made. */ - - if (error_count) - delete_failure_queue(); - delete_temp_files(); - - if (print_help_list) - { - printf("\nReport bugs to egcs-bugs@cygnus.com.\n"); - printf("Please see the file BUGS (included with the sources) first.\n"); - } - - exit(error_count > 0 ? (signal_count ? 2 : 1) : 0); - /* NOTREACHED */ - return 0; -} - -/* Find the proper compilation spec for the file name NAME, - whose length is LENGTH. LANGUAGE is the specified language, - or 0 if this file is to be passed to the linker. */ - -static struct compiler * -lookup_compiler(char *name, size_t length, char *language) -{ - struct compiler *cp; - - /* If this was specified by the user to be a linker input, indicate that. */ - if (language != 0 && language[0] == '*') - return 0; - - /* Otherwise, look for the language, if one is spec'd. */ - if (language != 0) - { - for (cp = compilers + n_compilers - 1; cp >= compilers; cp--) - if (cp->suffix[0] == '@' && !strcmp(cp->suffix + 1, language)) - return cp; - - error("language %s not recognized", language); - return 0; - } - - /* Look for a suffix. */ - for (cp = compilers + n_compilers - 1; cp >= compilers; cp--) - { - if ( /* The suffix `-' matches only the file name `-'. */ - (!strcmp(cp->suffix, "-") && !strcmp(name, "-")) - || (strlen(cp->suffix) < length - /* See if the suffix matches the end of NAME. */ - && !strcmp(cp->suffix, name + length - strlen(cp->suffix)) - )) - { - if (cp->spec[0][0] == '@') - { - struct compiler *new; - - /* An alias entry maps a suffix to a language. - Search for the language; pass 0 for NAME and LENGTH - to avoid infinite recursion if language not found. - Construct the new compiler spec. */ - language = cp->spec[0] + 1; - new = (struct compiler *) xmalloc(sizeof (struct compiler)); - new->suffix = cp->suffix; - copy_memory((char *) lookup_compiler(NULL, 0, language)->spec, - (char *) new->spec, sizeof new->spec); - return new; - } - - /* A non-alias entry: return it. */ - return cp; - } - } - - return 0; -} - -void * -xmalloc(size_t size) -{ - register void *value = malloc(size); - if (value == 0) - fatal("virtual memory exhausted"); - return value; -} - -void * -xrealloc(void *old, size_t size) -{ - register void *ptr; - if (old) - ptr = realloc(old, size); - else - ptr = malloc(size); - if (ptr == 0) - fatal("virtual memory exhausted"); - return ptr; -} - -static char * -save_string(const char *s, int len) -{ - register char *result = xmalloc(len + 1); - - copy_memory(s, result, len); - result[len] = 0; - return result; -} - -static void -pfatal_with_name(char *name) -{ - fatal("%s: %s", name, xstrerror(errno)); -} - -static void -perror_with_name(char *name) -{ - error("%s: %s", name, xstrerror(errno)); -} - -static void -pfatal_pexecute(char *errmsg_fmt, char *errmsg_arg) -{ - int save_errno = errno; - - if (errmsg_arg) - { - /* Space for trailing '\0' is in %s. */ - char *msg = xmalloc(strlen(errmsg_fmt) + strlen(errmsg_arg)); - sprintf(msg, errmsg_fmt, errmsg_arg); - errmsg_fmt = msg; - } - - fatal("%s: %s", errmsg_fmt, xstrerror(save_errno)); -} - -/* More 'friendly' abort that prints the line and file. - config.h can #define abort fancy_abort if you like that sort of thing. */ - -void -fancy_abort() -{ - fatal("Internal gcc abort."); -} - -/* Output an error message and exit */ - -static void -fatal(char *format, ...) -{ - va_list ap; - - va_start(ap, format); - - - fprintf(stderr, "%s: ", programname); - vfprintf(stderr, format, ap); - va_end(ap); - fprintf(stderr, "\n"); - delete_temp_files(); - exit(1); -} - -static void -error(char *format, ...) -{ - va_list ap; - - va_start(ap, format); - - - fprintf(stderr, "%s: ", programname); - vfprintf(stderr, format, ap); - va_end(ap); - - fprintf(stderr, "\n"); -} - -static void -validate_all_switches() -{ - struct compiler *comp; - register char *p; - register char c; - struct spec_list *spec; - - for (comp = compilers; comp->spec[0]; comp++) - { - size_t i; - for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++) - { - p = comp->spec[i]; - while ((c = *p++)) - if (c == '%' && *p == '{') - /* We have a switch spec. */ - validate_switches(p + 1); - } - } - - /* look through the linked list of specs read from the specs file */ - for (spec = specs; spec; spec = spec->next) - { - p = *(spec->ptr_spec); - while ((c = *p++)) - if (c == '%' && *p == '{') - /* We have a switch spec. */ - validate_switches(p + 1); - } - - p = link_command_spec; - while ((c = *p++)) - if (c == '%' && *p == '{') - /* We have a switch spec. */ - validate_switches(p + 1); -} - -/* Look at the switch-name that comes after START - and mark as valid all supplied switches that match it. */ - -static void -validate_switches(char *start) -{ - register char *p = start; - char *filter; - register int i; - int suffix = 0; - - if (*p == '|') - ++p; - - if (*p == '!') - ++p; - - if (*p == '.') - suffix = 1, ++p; - - filter = p; - while (*p != ':' && *p != '}') p++; - - if (suffix) - ; - else if (p[-1] == '*') - { - /* Mark all matching switches as valid. */ - --p; - for (i = 0; i < n_switches; i++) - if (!strncmp(switches[i].part1, filter, p - filter)) - switches[i].valid = 1; - } - else - { - /* Mark an exact matching switch as valid. */ - for (i = 0; i < n_switches; i++) - { - if (!strncmp(switches[i].part1, filter, p - filter) - && switches[i].part1[p - filter] == 0) - switches[i].valid = 1; - } - } -} - -/* Check whether a particular argument was used. The first time we - canonicalize the switches to keep only the ones we care about. */ - -static int -used_arg(char *p, int len) -{ - struct mswitchstr { - char *str; - char *replace; - int len; - int rep_len; - }; - - static struct mswitchstr *mswitches; - static int n_mswitches; - int i, j; - - if (!mswitches) - { - struct mswitchstr *matches; - char *q; - int cnt = 0; - - /* Break multilib_matches into the component strings of string and replacement - string */ - for (q = multilib_matches; *q != '\0'; q++) - if (*q == ';') - cnt++; - - matches = (struct mswitchstr *) alloca((sizeof (struct mswitchstr)) * cnt); - i = 0; - q = multilib_matches; - while (*q != '\0') - { - matches[i].str = q; - while (*q != ' ') - { - if (*q == '\0') - abort(); - q++; - } - *q = '\0'; - matches[i].len = q - matches[i].str; - - matches[i].replace = ++q; - while (*q != ';' && *q != '\0') - { - if (*q == ' ') - abort(); - q++; - } - matches[i].rep_len = q - matches[i].replace; - i++; - if (*q == ';') - *q++ = '\0'; - else - break; - } - - /* Now build a list of the replacement string for switches that we care - about. Make sure we allocate at least one entry. This prevents - xmalloc from calling fatal, and prevents us from re-executing this - block of code. */ - mswitches - = (struct mswitchstr *) xmalloc((sizeof (struct mswitchstr)) - * (n_switches ? n_switches : 1)); - for (i = 0; i < n_switches; i++) - { - int xlen = strlen(switches[i].part1); - for (j = 0; j < cnt; j++) - if (xlen == matches[j].len && !strcmp(switches[i].part1, matches[j].str)) - { - mswitches[n_mswitches].str = matches[j].replace; - mswitches[n_mswitches].len = matches[j].rep_len; - mswitches[n_mswitches].replace = (char *)0; - mswitches[n_mswitches].rep_len = 0; - n_mswitches++; - break; - } - } - } - - for (i = 0; i < n_mswitches; i++) - if (len == mswitches[i].len && !strncmp(p, mswitches[i].str, len)) - return 1; - - return 0; -} - -static int -default_arg(char *p, int len) -{ - char *start, *end; - - for (start = multilib_defaults; *start != '\0'; start = end+1) - { - while (*start == ' ' || *start == '\t') - start++; - - if (*start == '\0') - break; - - for (end = start+1; *end != ' ' && *end != '\t' && *end != '\0'; end++) - ; - - if ((end - start) == len && strncmp(p, start, len) == 0) - return 1; - - if (*end == '\0') - break; - } - - return 0; -} - -/* Work out the subdirectory to use based on the - options. The format of multilib_select is a list of elements. - Each element is a subdirectory name followed by a list of options - followed by a semicolon. gcc will consider each line in turn. If - none of the options beginning with an exclamation point are - present, and all of the other options are present, that - subdirectory will be used. */ - -static void -set_multilib_dir() -{ - char *p = multilib_select; - int this_path_len; - char *this_path, *this_arg; - int not_arg; - int ok; - - while (*p != '\0') - { - /* Ignore newlines. */ - if (*p == '\n') - { - ++p; - continue; - } - - /* Get the initial path. */ - this_path = p; - while (*p != ' ') - { - if (*p == '\0') - abort(); - ++p; - } - this_path_len = p - this_path; - - /* Check the arguments. */ - ok = 1; - ++p; - while (*p != ';') - { - if (*p == '\0') - abort(); - - if (!ok) - { - ++p; - continue; - } - - this_arg = p; - while (*p != ' ' && *p != ';') - { - if (*p == '\0') - abort(); - ++p; - } - - if (*this_arg != '!') - not_arg = 0; - else - { - not_arg = 1; - ++this_arg; - } - - /* If this is a default argument, we can just ignore it. - This is true even if this_arg begins with '!'. Beginning - with '!' does not mean that this argument is necessarily - inappropriate for this library: it merely means that - there is a more specific library which uses this - argument. If this argument is a default, we need not - consider that more specific library. */ - if (!default_arg(this_arg, p - this_arg)) - { - ok = used_arg(this_arg, p - this_arg); - if (not_arg) - ok = !ok; - } - - if (*p == ' ') - ++p; - } - - if (ok) - { - if (this_path_len != 1 - || this_path[0] != '.') - { - multilib_dir = xmalloc(this_path_len + 1); - strncpy(multilib_dir, this_path, this_path_len); - multilib_dir[this_path_len] = '\0'; - } - break; - } - - ++p; - } -} - -/* Print out the multiple library subdirectory selection - information. This prints out a series of lines. Each line looks - like SUBDIRECTORY;@OPTION@OPTION, with as many options as is - required. Only the desired options are printed out, the negative - matches. The options are print without a leading dash. There are - no spaces to make it easy to use the information in the shell. - Each subdirectory is printed only once. This assumes the ordering - generated by the genmultilib script. */ - -static void -print_multilib_info() -{ - char *p = multilib_select; - char *last_path = 0, *this_path; - int skip; - int last_path_len = 0; - - while (*p != '\0') - { - /* Ignore newlines. */ - if (*p == '\n') - { - ++p; - continue; - } - - /* Get the initial path. */ - this_path = p; - while (*p != ' ') - { - if (*p == '\0') - abort(); - ++p; - } - - /* If this is a duplicate, skip it. */ - skip = (last_path != 0 && p - this_path == last_path_len - && !strncmp(last_path, this_path, last_path_len)); - - last_path = this_path; - last_path_len = p - this_path; - - /* If this directory requires any default arguments, we can skip - it. We will already have printed a directory identical to - this one which does not require that default argument. */ - if (!skip) - { - char *q; - - q = p + 1; - while (*q != ';') - { - char *arg; - - if (*q == '\0') - abort(); - - if (*q == '!') - arg = NULL; - else - arg = q; - - while (*q != ' ' && *q != ';') - { - if (*q == '\0') - abort(); - ++q; - } - - if (arg != NULL - && default_arg(arg, q - arg)) - { - skip = 1; - break; - } - - if (*q == ' ') - ++q; - } - } - - if (!skip) - { - char *p1; - - for (p1 = last_path; p1 < p; p1++) - putchar(*p1); - putchar(';'); - } - - ++p; - while (*p != ';') - { - int use_arg; - - if (*p == '\0') - abort(); - - if (skip) - { - ++p; - continue; - } - - use_arg = *p != '!'; - - if (use_arg) - putchar('@'); - - while (*p != ' ' && *p != ';') - { - if (*p == '\0') - abort(); - if (use_arg) - putchar(*p); - ++p; - } - - if (*p == ' ') - ++p; - } - - if (!skip) - { - /* If there are extra options, print them now */ - if (multilib_extra && *multilib_extra) - { - int print_at = TRUE; - char *q; - - for (q = multilib_extra; *q != '\0'; q++) - { - if (*q == ' ') - print_at = TRUE; - else - { - if (print_at) - putchar('@'); - putchar(*q); - print_at = FALSE; - } - } - } - putchar('\n'); - } - - ++p; - } -} |