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Diffstat (limited to 'gcc_arm/gcc.c')
| -rwxr-xr-x | gcc_arm/gcc.c | 6211 |
1 files changed, 6211 insertions, 0 deletions
diff --git a/gcc_arm/gcc.c b/gcc_arm/gcc.c new file mode 100755 index 0000000..382facc --- /dev/null +++ b/gcc_arm/gcc.c @@ -0,0 +1,6211 @@ +/* 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 paragraph is here to try to keep Sun CC from dying. +The number of chars here seems crucial!!!! */ + +/* 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" + +#ifdef VMS +#define exit __posix_exit +#endif + +/* By default there is no special suffix for executables. */ +#ifdef EXECUTABLE_SUFFIX +#define HAVE_EXECUTABLE_SUFFIX +#else +#define EXECUTABLE_SUFFIX "" +#endif + +/* By default, the suffix for object files is ".o". */ +#ifdef OBJECT_SUFFIX +#define HAVE_OBJECT_SUFFIX +#else +#define OBJECT_SUFFIX ".o" +#endif + +/* 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 GET_ENV_PATH_LIST +#define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0) +#endif + +#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 PROTO((void)); +static void read_specs PROTO((char *, int)); +static void set_spec PROTO((char *, char *)); +static struct compiler *lookup_compiler PROTO((char *, size_t, char *)); +static char *build_search_list PROTO((struct path_prefix *, char *, int)); +static void putenv_from_prefixes PROTO((struct path_prefix *, char *)); +/* CYGNUS LOCAL -- meissner/relative pathnames */ +static char **split_directories PROTO((char *, int *)); +static void free_split_directories PROTO((char **)); +static char *make_relative_prefix PROTO((char *, char *, char *)); +/* END CYGNUS LOCAL -- meissner/relative pathnames */ +static char *find_a_file PROTO((struct path_prefix *, char *, int)); +static void add_prefix PROTO((struct path_prefix *, const char *, + const char *, int, int, int *)); +static char *skip_whitespace PROTO((char *)); +static void record_temp_file PROTO((char *, int, int)); +static void delete_if_ordinary PROTO((char *)); +static void delete_temp_files PROTO((void)); +static void delete_failure_queue PROTO((void)); +static void clear_failure_queue PROTO((void)); +static int check_live_switch PROTO((int, int)); +static char *handle_braces PROTO((char *)); +static char *save_string PROTO((const char *, int)); +extern int do_spec PROTO((char *)); +static int do_spec_1 PROTO((char *, int, char *)); +static char *find_file PROTO((char *)); +static int is_directory PROTO((char *, char *, int)); +static void validate_switches PROTO((char *)); +static void validate_all_switches PROTO((void)); +static void give_switch PROTO((int, int, int)); +static int used_arg PROTO((char *, int)); +static int default_arg PROTO((char *, int)); +static void set_multilib_dir PROTO((void)); +static void print_multilib_info PROTO((void)); +static void pfatal_with_name PROTO((char *)) ATTRIBUTE_NORETURN; +static void perror_with_name PROTO((char *)); +static void pfatal_pexecute PROTO((char *, char *)) ATTRIBUTE_NORETURN; +static void fatal PVPROTO((char *, ...)) + ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF_1; +static void error PVPROTO((char *, ...)) ATTRIBUTE_PRINTF_1; +static void display_help PROTO((void)); + +void fancy_abort PROTO((void)) ATTRIBUTE_NORETURN; + +#ifdef LANG_SPECIFIC_DRIVER +/* Called before processing to change/add/remove arguments. */ +extern void lang_specific_driver PROTO ((void (*) PVPROTO((char *, ...)), int *, char ***, int *)); + +/* Called before linking. Returns 0 on success and -1 on failure. */ +extern int lang_specific_pre_link (); + +/* Number of extra output files that lang_specific_pre_link may generate. */ +extern int lang_specific_extra_outfiles; +#endif + +/* 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. + %2 process CC1PLUS_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 and cc1plus + or extra switch-translations. */ +#ifndef CC1_SPEC +#define CC1_SPEC "" +#endif + +/* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus + or extra switch-translations. */ +#ifndef CC1PLUS_SPEC +#define CC1PLUS_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 + +/* config.h can define LIBGCC_SPEC to override how and when libgcc.a is + included. */ +#ifndef LIBGCC_SPEC +#if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1) +/* Have gcc do the search for libgcc.a. */ +#define LIBGCC_SPEC "libgcc.a%s" +#else +#define LIBGCC_SPEC "-lgcc" +#endif +#endif + +/* 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 + +static char *cpp_spec = CPP_SPEC; +static char *cpp_predefines = CPP_PREDEFINES; +static char *cc1_spec = CC1_SPEC; +static char *cc1plus_spec = CC1PLUS_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") \ + /* CYGNUS LOCAL v850/law */ \ + || !strcmp (STR, "attr-info") \ + || !strcmp (STR, "offset-info") \ + /* END CYGNUS LOCAL */ \ + || !strcmp (STR, "isystem") || !strcmp (STR, "specs")) + +#ifndef WORD_SWITCH_TAKES_ARG +#define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR) +#endif + + +#ifdef HAVE_EXECUTABLE_SUFFIX +/* This defines which switches stop a full compilation. */ +#define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \ + ((CHAR) == 'c' || (CHAR) == 'S') + +#ifndef SWITCH_CURTAILS_COMPILATION +#define SWITCH_CURTAILS_COMPILATION(CHAR) \ + DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) +#endif +#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[] = +{ + /* Add lists of suffixes of known languages here. If those languages + were not present when we built the driver, we will hit these copies + and be given a more meaningful error than "file not used since + linking is not done". */ + {".m", {"#Objective-C"}}, + {".cc", {"#C++"}}, {".cxx", {"#C++"}}, {".cpp", {"#C++"}}, + {".c++", {"#C++"}}, {".C", {"#C++"}}, + {".ads", {"#Ada"}}, {".adb", {"#Ada"}}, {".ada", {"#Ada"}}, + {".f", {"#Fortran"}}, {".for", {"#Fortran"}}, {".F", {"#Fortran"}}, + {".fpp", {"#Fortran"}}, + {".p", {"#Pascal"}}, {".pas", {"#Pascal"}}, + /* Next come the entries for C. */ + {".c", {"@c"}}, + {"@c", + { +#if USE_CPPLIB + "%{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}\ + %{fleading-underscore} %{fno-leading-underscore}\ + %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\ + %i %{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}}\n}", + /* CYGNUS LOCAL v850/law & --help/nickc */ +#if 1 + "%{!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} \ + %{attr-info*}\ + %{offset-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 }}}}" +#else + /* END CYGNUS LOCAL */ + "%{!E:%{!M:%{!MM:cc1 %i %1 \ + %{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|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__}}\ + %{H} %C %{D*} %{U*} %{i*} %Z\ + %{ftraditional:-traditional}\ + %{traditional-cpp:-traditional}\ + %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\ + %{aux-info*}\ + %{--help:--help}\ + %{g*} %{O*} %{W*} %{w} %{pedantic*}\ + %{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 }}}}" + /* CYGNUS LOCAL v850/law */ +#endif + /* END CYGNUS LOCAL */ + }}, +#else /* ! USE_CPPLIB */ + "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}\ + %{fleading-underscore} %{fno-leading-underscore}\ + %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\ + %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n", + /* CYGNUS LOCAL v850/law & --help/nickc */ +#if 1 + "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \ + %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\ + %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \ + %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\ + %{aux-info*}\ + %{attr-info*}\ + %{--help:--help} \ + %{offset-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 }}}}" +#else + /* END CYGNUS LOCAL */ + "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \ + %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\ + %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*}\ + %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\ + %{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 }}}}" + /* CYGNUS LOCAL v850/law */ +#endif + /* END CYGNUS LOCAL */ + }}, +#endif /* ! USE_CPPLIB */ + {"-", + {"%{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}\ + %{fleading-underscore} %{fno-leading-underscore}\ + %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\ + %i %W{o*}}\ + %{!E:%e-E required when input is from standard input}"}}, + {".m", {"@objective-c"}}, + {"@objective-c", + {"cpp -lang-objc %{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__OBJC__ -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__}}\ + %{traditional} %{ftraditional:-traditional}\ + %{traditional-cpp:-traditional}\ + %{fleading-underscore} %{fno-leading-underscore}\ + %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\ + %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n", + /* CYGNUS LOCAL v850/law */ +#if 1 + "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \ + %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a*}\ + %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \ + %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \ + -lang-objc %{gen-decls} \ + %{aux-info*}\ + %{attr-info*}\ + %{offset-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 }}}}" +#else + /* END CYGNUS LOCAL */ + "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \ + %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a*}\ + %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \ + %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \ + -lang-objc %{gen-decls} \ + %{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 }}}}" + /* CYGNUS LOCAL v850/law */ +#endif + /* END CYGNUS LOCAL */ + }}, + {".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}\ + %{fleading-underscore} %{fno-leading-underscore}\ + %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\ + %i %W{o*}"}}, + {".i", {"@cpp-output"}}, + {"@cpp-output", + /* CYGNUS LOCAL v850/law */ +#if 1 + "%{!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*}\ + %{attr-info*}\ + %{offset-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 }}}}" +#else + /* END CYGNUS LOCAL */ + {"%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\ + %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*}\ + %{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 }}}}" + /* CYGNUS LOCAL v850/law */ +#endif + /* END CYGNUS LOCAL */ + }, + {".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}\ + %{fleading-underscore} %{fno-leading-underscore}\ + %{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 }}}}"}}, +#include "specs.h" + /* 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. */ +#ifdef LINK_COMMAND_SPEC +/* Provide option to override link_command_spec from machine specific + configuration files. */ +static char *link_command_spec = + LINK_COMMAND_SPEC; +#else +#ifdef LINK_LIBGCC_SPECIAL +/* Don't generate -L options. */ +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*} %o\ + %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\ + %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\ + %{T*}\ + \n }}}}}}"; +#else +/* Use -L. */ +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 }}}}}}"; +#endif +#endif + +/* 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 (argcp, argvp) + int *argcp; + char ***argvp; +{ + int i; + int argc = *argcp; + char **argv = *argvp; + char **newv; /* CYGNUS LOCAL default-options */ + int newindex = 0; + /* CYGNUS LOCAL default-options */ + char *default_options = getenv ("GCC_DEFAULT_OPTIONS"); + int default_options_count = 0; + char *p; + + /* Make a rough estimate of the number of options. */ + if (default_options) + { + default_options_count = 1; + for (p = default_options; *p; p++) + if (*p == ' ') + default_options_count++; + } + + newv = (char **) xmalloc ((argc + default_options_count + 2) + * 2 * sizeof (char *)); + /* END CYGNUS LOCAL */ + i = 0; + newv[newindex++] = argv[i++]; + + /* CYGNUS LOCAL default-options */ + /* Insert default options at the beginning of the command, so that they + can be overriden by the user if desired. */ + + if (default_options) + { + char *q; + + /* Make a copy of default_options, so that we can safely modify it. + If we modify it in place, then a subsequent getenv call may get + the modified string. */ + q = xmalloc (strlen (default_options) + 1); + strcpy (q, default_options); + default_options = q; + + q = default_options; + for (p = default_options; *p; p++) + if (*p == ' ') + { + *p = '\0'; + if (*q != '\0') + newv[newindex++] = q; + if (*++p == ' ') + while (*p == ' ') + p++; + q = p; + } + if (*q != '\0') + newv[newindex++] = q; + } + + /* Now add options from the command line. */ + /* END CYGNUS LOCAL */ + + 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 (index (arginfo, '*') != 0) + arg = argv[i] + optlen; + + /* Otherwise, extra text at end means mismatch. + Try other mappings. */ + else + continue; + } + + else if (index (arginfo, '*') != 0) + { + error ("Incomplete `%s' option", option_map[j].name); + break; + } + + /* Handle arguments. */ + if (index (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 (index (arginfo, '*') != 0) + ; + else if (index (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 && index (arginfo, 'j') != 0) + newv[newindex++] = concat (option_map[j].equivalent, arg, + NULL_PTR); + 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(e) + int e; +{ +#ifdef HAVE_STRERROR + + return strerror(e); + +#else + + static char buffer[30]; + if (!e) + return "cannot access"; + + if (e > 0 && e < sys_nerr) + return sys_errlist[e]; + + sprintf (buffer, "Unknown error %d", e); + return buffer; +#endif +} + +static char * +skip_whitespace (p) + 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, 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 ("cc1plus", &cc1plus_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), +}; + +#ifdef EXTRA_SPECS /* additional specs needed */ +/* Structure to keep track of just the first two args of a spec_list. + That is all that the EXTRA_SPECS macro gives us. */ +struct spec_list_1 +{ + char *name; + char *ptr; +}; + +static struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS }; +static struct spec_list * extra_specs = (struct spec_list *)0; +#endif + +/* 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"); + +#ifdef EXTRA_SPECS + extra_specs = (struct spec_list *) + xmalloc (sizeof(struct spec_list) * + (sizeof(extra_specs_1)/sizeof(extra_specs_1[0]))); + bzero ((PTR) extra_specs, sizeof(struct spec_list) * + (sizeof(extra_specs_1)/sizeof(extra_specs_1[0]))); + + for (i = (sizeof(extra_specs_1) / sizeof(extra_specs_1[0])) - 1; i >= 0; i--) + { + sl = &extra_specs[i]; + sl->name = extra_specs_1[i].name; + sl->ptr = extra_specs_1[i].ptr; + sl->next = next; + sl->name_len = strlen (sl->name); + sl->ptr_spec = &sl->ptr; + next = sl; + } +#endif + + 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 (name, 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_PTR) + : 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 + +#ifdef MKTEMP_EACH_FILE + +extern char *make_temp_file PROTO((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; +#endif + + +/* 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; + +/* Adjusted value of GCC_EXEC_PREFIX envvar. */ + +static char *gcc_exec_prefix; + +/* Default prefixes to attach to command names. */ + +#ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */ +#undef MD_EXEC_PREFIX +#undef MD_STARTFILE_PREFIX +#undef MD_STARTFILE_PREFIX_1 +#endif + +#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/"; +#ifdef MD_EXEC_PREFIX +static char *md_exec_prefix = MD_EXEC_PREFIX; +#endif + +#ifndef STANDARD_STARTFILE_PREFIX +#define STANDARD_STARTFILE_PREFIX "/usr/local/lib/" +#endif /* !defined STANDARD_STARTFILE_PREFIX */ + +#ifdef MD_STARTFILE_PREFIX +static char *md_startfile_prefix = MD_STARTFILE_PREFIX; +#endif +#ifdef MD_STARTFILE_PREFIX_1 +static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1; +#endif +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 (arg, delete_always, delete_failure) + char *arg; + int delete_always, 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 (filename, main_p) + 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; + bzero ((char *) compilers[n_compilers].spec, + sizeof compilers[n_compilers].spec); + compilers[n_compilers].spec[0] = spec; + n_compilers++; + bzero ((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 (filename, always_delete, fail_delete) + 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 (name) + 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; +} + +/* Routine to add variables to the environment. We do this to pass + the pathname of the gcc driver, and the directories search to the + collect2 program, which is being run as ld. This way, we can be + sure of executing the right compiler when collect2 wants to build + constructors and destructors. Since the environment variables we + use come from an obstack, we don't have to worry about allocating + space for them. */ + +#ifndef HAVE_PUTENV + +void +putenv (str) + char *str; +{ +#ifndef VMS /* nor about VMS */ + + extern char **environ; + char **old_environ = environ; + char **envp; + int num_envs = 0; + int name_len = 1; + int str_len = strlen (str); + char *p = str; + int ch; + + while ((ch = *p++) != '\0' && ch != '=') + name_len++; + + if (!ch) + abort (); + + /* Search for replacing an existing environment variable, and + count the number of total environment variables. */ + for (envp = old_environ; *envp; envp++) + { + num_envs++; + if (!strncmp (str, *envp, name_len)) + { + *envp = str; + return; + } + } + + /* Add a new environment variable */ + environ = (char **) xmalloc (sizeof (char *) * (num_envs+2)); + *environ = str; + memcpy ((char *) (environ + 1), (char *) old_environ, + sizeof (char *) * (num_envs+1)); + +#endif /* VMS */ +} + +#endif /* HAVE_PUTENV */ + + +/* 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 (paths, prefix, check_dir_p) + 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 (paths, env_var) + struct path_prefix *paths; + char *env_var; +{ + putenv (build_search_list (paths, env_var, 1)); +} + +/* CYGNUS LOCAL -- meissner/relative pathnames */ +/* Split a filename into component directories. */ + +static char ** +split_directories (name, ptr_num_dirs) + char *name; + int *ptr_num_dirs; +{ + int num_dirs = 0; + char **dirs; + char *p, *q; + int ch; + + /* Count the number of directories. Special case MSDOS disk names as part + of the initial directory. */ + p = name; + if (DIR_SEPARATOR == '\\' && name[1] == ':' + && (name[2] == DIR_SEPARATOR || name[2] == '/')) + { + p += 3; + num_dirs++; + } + + while ((ch = *p++) != '\0') + { + if (ch == '/' || ch == DIR_SEPARATOR) + { + num_dirs++; + while ((ch = *p) == '/' || ch == DIR_SEPARATOR) + p++; + } + } + + dirs = (char **) xmalloc (sizeof (char *) * (num_dirs + 2)); + + /* Now copy the directory parts. */ + num_dirs = 0; + p = name; + if (DIR_SEPARATOR == '\\' && name[1] == ':' + && (name[2] == DIR_SEPARATOR || name[2] == '/')) + { + dirs[num_dirs++] = save_string (p, 3); + p += 3; + } + + q = p; + while ((ch = *p++) != '\0') + { + if (ch == '/' || ch == DIR_SEPARATOR) + { + while ((ch = *p) == '/' || ch == DIR_SEPARATOR) + p++; + + dirs[num_dirs++] = save_string (q, p - q); + q = p; + } + } + + if (p - 1 - q > 0) + dirs[num_dirs++] = save_string (q, p - 1 - q); + + dirs[num_dirs] = NULL_PTR; + if (ptr_num_dirs) + *ptr_num_dirs = num_dirs; + + return dirs; +} + +/* Release storage held by split directories. */ + +static void +free_split_directories (dirs) + char **dirs; +{ + int i = 0; + + while (dirs[i] != NULL_PTR) + free (dirs[i++]); + + free ((char *)dirs); +} + +/* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets + to PREFIX starting with the directory portion of PROGNAME and a relative + pathname of the difference between BIN_PREFIX and PREFIX. + + For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is + /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this + function will return /reg/green/blue/../omega. + + If no relative prefix can be found, return NULL. */ + +static char * +make_relative_prefix (progname, bin_prefix, prefix) + char *progname; + char *bin_prefix; + char *prefix; +{ + char **prog_dirs, **bin_dirs, **prefix_dirs; + int prog_num, bin_num, prefix_num, std_loc_p; + int i, n, common; + + prog_dirs = split_directories (progname, &prog_num); + bin_dirs = split_directories (bin_prefix, &bin_num); + + /* If there is no full pathname, try to find the program by checking in each + of the directories specified in the PATH environment variable. */ + if (prog_num == 1) + { + char *temp; + + GET_ENV_PATH_LIST (temp, "PATH"); + if (temp) + { + char *startp, *endp; + char *nstore = (char *) alloca (strlen (temp) + strlen (progname) + 1); + + startp = endp = temp; + while (1) + { + if (*endp == PATH_SEPARATOR || *endp == 0) + { + if (endp == startp) + { + nstore[0] = '.'; + nstore[1] = DIR_SEPARATOR; + nstore[2] = '\0'; + } + else + { + strncpy (nstore, startp, endp-startp); + if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR) + { + nstore[endp-startp] = DIR_SEPARATOR; + nstore[endp-startp+1] = 0; + } + else + nstore[endp-startp] = 0; + } + strcat (nstore, progname); + if (!access (nstore, X_OK)) + { + free_split_directories (prog_dirs); + progname = nstore; + prog_dirs = split_directories (progname, &prog_num); + break; + } + + if (*endp == 0) + break; + endp = startp = endp + 1; + } + else + endp++; + } + } + } + + /* Remove the program name from comparison of directory names. */ + prog_num--; + + /* Determine if the compiler is installed in the standard location, and if + so, we don't need to specify relative directories. Also, if argv[0] + doesn't contain any directory specifiers, there is not much we can do. */ + std_loc_p = 0; + if (prog_num == bin_num) + { + for (i = 0; i < bin_num; i++) + { + if (strcmp (prog_dirs[i], bin_dirs[i]) != 0) + break; + } + + if (prog_num <= 0 || i == bin_num) + { + std_loc_p = 1; + free_split_directories (prog_dirs); + free_split_directories (bin_dirs); + prog_dirs = bin_dirs = (char **)0; + return NULL_PTR; + } + } + + prefix_dirs = split_directories (prefix, &prefix_num); + + /* Find how many directories are in common between bin_prefix & prefix */ + n = (prefix_num < bin_num) ? prefix_num : bin_num; + for (common = 0; common < n; common++) + { + if (strcmp (bin_dirs[common], prefix_dirs[common]) != 0) + break; + } + + /* If there are no common directories, there can be no relative prefix. */ + if (common == 0) + { + free_split_directories (prog_dirs); + free_split_directories (bin_dirs); + free_split_directories (prefix_dirs); + return NULL_PTR; + } + + /* Build up the pathnames in argv[0]. */ + for (i = 0; i < prog_num; i++) + obstack_grow (&obstack, prog_dirs[i], strlen (prog_dirs[i])); + + /* Now build up the ..'s. */ + for (i = common; i < n; i++) + { + obstack_grow (&obstack, DIR_UP, sizeof (DIR_UP)-1); + obstack_1grow (&obstack, DIR_SEPARATOR); + } + + /* Put in directories to move over to prefix. */ + for (i = common; i < prefix_num; i++) + obstack_grow (&obstack, prefix_dirs[i], strlen (prefix_dirs[i])); + + free_split_directories (prog_dirs); + free_split_directories (bin_dirs); + free_split_directories (prefix_dirs); + + obstack_1grow (&obstack, '\0'); + return obstack_finish (&obstack); +} +/* END CYGNUS LOCAL -- meissner/relative pathnames */ + + +/* 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 (pprefix, name, mode) + 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 (pprefix, prefix, component, first, require_machine_suffix, warn) + 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 (pprefix) + 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. */ +#if defined (__MSDOS__) || defined (OS2) || defined (VMS) + fatal ("-pipe not supported"); +#endif + 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; + + +#if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX) + +/* Convert NAME to a new name if it is the standard suffix. DO_EXE + is true if we should look for an executable suffix as well. */ + +static char * +convert_filename (name, do_exe) + char *name; + int do_exe; +{ + int i; + int len = strlen (name); + +#ifdef HAVE_OBJECT_SUFFIX + /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */ + if (len > 2 + && name[len - 2] == '.' + && name[len - 1] == 'o') + { + obstack_grow (&obstack, name, len - 2); + obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX)); + name = obstack_finish (&obstack); + } +#endif + +#ifdef HAVE_EXECUTABLE_SUFFIX + /* If there is no filetype, make it the executable suffix (which includes + the "."). But don't get confused if we have just "-o". */ + if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-')) + return name; + + for (i = len - 1; i >= 0; i--) + if (name[i] == '/' || name[i] == DIR_SEPARATOR) + break; + + for (i++; i < len; i++) + if (name[i] == '.') + return name; + + obstack_grow (&obstack, name, len); + obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX)); + name = obstack_finish (&obstack); +#endif + + return name; +} +#endif + +/* 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 (option, len) + 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 (option, len) + 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 (option, len) + 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 (argc, argv) + 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; + + GET_ENV_PATH_LIST (gcc_exec_prefix, "GCC_EXEC_PREFIX"); + + 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; + } + } + + /* CYGNUS LOCAL meissner/relative pathnames */ + /* Set up the default search paths. If there is no GCC_EXEC_PREFIX, see if we + can create it from the pathname specified in argv[0]. */ + + if (!gcc_exec_prefix) + { + gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix, + standard_exec_prefix); + if (gcc_exec_prefix) + putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL_PTR)); + } + /* END CYGNUS LOCAL -- meissner/relative pathnames */ + + if (gcc_exec_prefix) + { + int len = strlen (gcc_exec_prefix); + if (len > (int) sizeof ("/lib/gcc-lib/")-1 + && (gcc_exec_prefix[len-1] == '/' + || gcc_exec_prefix[len-1] == DIR_SEPARATOR)) + { + temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1; + if ((*temp == '/' || *temp == DIR_SEPARATOR) + && strncmp (temp+1, "lib", 3) == 0 + && (temp[4] == '/' || temp[4] == DIR_SEPARATOR) + && strncmp (temp+5, "gcc-lib", 7) == 0) + len -= sizeof ("/lib/gcc-lib/") - 1; + } + + set_std_prefix (gcc_exec_prefix, len); + add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC", 0, 0, NULL_PTR); + add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC", 0, 0, NULL_PTR); + } + + /* COMPILER_PATH and LIBRARY_PATH have values + that are lists of directory names with colons. */ + + GET_ENV_PATH_LIST (temp, "COMPILER_PATH"); + if (temp) + { + char *startp, *endp; + char *nstore = (char *) alloca (strlen (temp) + 3); + + startp = endp = temp; + while (1) + { + if (*endp == PATH_SEPARATOR || *endp == 0) + { + strncpy (nstore, startp, endp-startp); + if (endp == startp) + strcpy (nstore, concat (".", dir_separator_str, NULL_PTR)); + else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR) + { + nstore[endp-startp] = DIR_SEPARATOR; + nstore[endp-startp+1] = 0; + } + else + nstore[endp-startp] = 0; + add_prefix (&exec_prefixes, nstore, 0, 0, 0, NULL_PTR); + add_prefix (&include_prefixes, + concat (nstore, "include", NULL_PTR), + 0, 0, 0, NULL_PTR); + if (*endp == 0) + break; + endp = startp = endp + 1; + } + else + endp++; + } + } + + GET_ENV_PATH_LIST (temp, "LIBRARY_PATH"); + if (temp && *cross_compile == '0') + { + char *startp, *endp; + char *nstore = (char *) alloca (strlen (temp) + 3); + + startp = endp = temp; + while (1) + { + if (*endp == PATH_SEPARATOR || *endp == 0) + { + strncpy (nstore, startp, endp-startp); + if (endp == startp) + strcpy (nstore, concat (".", dir_separator_str, NULL_PTR)); + else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR) + { + nstore[endp-startp] = DIR_SEPARATOR; + nstore[endp-startp+1] = 0; + } + else + nstore[endp-startp] = 0; + add_prefix (&startfile_prefixes, nstore, NULL_PTR, + 0, 0, NULL_PTR); + if (*endp == 0) + break; + endp = startp = endp + 1; + } + else + endp++; + } + } + + /* Use LPATH like LIBRARY_PATH (for the CMU build program). */ + GET_ENV_PATH_LIST (temp, "LPATH"); + if (temp && *cross_compile == '0') + { + char *startp, *endp; + char *nstore = (char *) alloca (strlen (temp) + 3); + + startp = endp = temp; + while (1) + { + if (*endp == PATH_SEPARATOR || *endp == 0) + { + strncpy (nstore, startp, endp-startp); + if (endp == startp) + strcpy (nstore, concat (".", dir_separator_str, NULL_PTR)); + else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR) + { + nstore[endp-startp] = DIR_SEPARATOR; + nstore[endp-startp+1] = 0; + } + else + nstore[endp-startp] = 0; + add_prefix (&startfile_prefixes, nstore, NULL_PTR, + 0, 0, NULL_PTR); + if (*endp == 0) + break; + endp = startp = endp + 1; + } + else + endp++; + } + } + + /* Convert new-style -- options to old-style. */ + translate_options (&argc, &argv); + +#ifdef LANG_SPECIFIC_DRIVER + /* Do language-specific adjustment/addition of flags. */ + lang_specific_driver (fatal, &argc, &argv, &added_libraries); +#endif + + /* 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 (argv[i][0] == '+' && argv[i][1] == 'e') + /* The +e options to the C++ front-end. */ + n_switches++; + 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_PTR, 1, 0, &warn_B); + add_prefix (&startfile_prefixes, value, NULL_PTR, + 1, 0, &warn_B); + add_prefix (&include_prefixes, concat (value, "include", + NULL_PTR), + NULL_PTR, 1, 0, NULL_PTR); + + /* 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_PTR, + 1, 0, NULL_PTR); + else + { + char *string = xmalloc (len + 1); + strncpy (string, value, len-7); + strcpy (string+len-7, "include"); + add_prefix (&include_prefixes, string, NULL_PTR, + 1, 0, NULL_PTR); + } + } + } + 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; +#if defined(HAVE_EXECUTABLE_SUFFIX) + if (! have_c) + { + int skip; + + /* Forward scan, just in case -S or -c is specified + after -o. */ + int j = i + 1; + if (p[1] == 0) + ++j; + while (j < argc) + { + if (argv[j][0] == '-') + { + if (SWITCH_CURTAILS_COMPILATION (argv[j][1]) + && argv[j][2] == 0) + { + have_c = 1; + break; + } + else if (skip = SWITCH_TAKES_ARG (argv[j][1])) + j += skip - (argv[j][2] != 0); + else if (skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1)) + j += skip; + } + j++; + } + } +#endif +#if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX) + if (p[1] == 0) + argv[i+1] = convert_filename (argv[i+1], ! have_c); + else + argv[i] = convert_filename (argv[i], ! have_c); +#endif + 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. */ +#ifndef OS2 + 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); +#endif + + 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_PTR); + + /* If tooldir is relative, base it on exec_prefixes. A relative + tooldir lets us move the installed tree as a unit. + + If GCC_EXEC_PREFIX is defined, then we want to add two relative + directories, so that we can search both the user specified directory + and the standard place. */ + + if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR) + { + if (gcc_exec_prefix) + { + char *gcc_exec_tooldir_prefix + = concat (gcc_exec_prefix, spec_machine, dir_separator_str, + spec_version, dir_separator_str, tooldir_prefix, NULL_PTR); + + add_prefix (&exec_prefixes, + concat (gcc_exec_tooldir_prefix, "bin", + dir_separator_str, NULL_PTR), + NULL_PTR, 0, 0, NULL_PTR); + add_prefix (&startfile_prefixes, + concat (gcc_exec_tooldir_prefix, "lib", + dir_separator_str, NULL_PTR), + NULL_PTR, 0, 0, NULL_PTR); + } + + tooldir_prefix = concat (standard_exec_prefix, spec_machine, + dir_separator_str, spec_version, + dir_separator_str, tooldir_prefix, NULL_PTR); + } + + add_prefix (&exec_prefixes, + concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR), + "BINUTILS", 0, 0, NULL_PTR); + add_prefix (&startfile_prefixes, + concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR), + "BINUTILS", 0, 0, NULL_PTR); + + /* 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 (index (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 + { +#ifdef HAVE_OBJECT_SUFFIX + argv[i] = convert_filename (argv[i], 0); +#endif + + 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 (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_PTR); + + /* 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 (spec, inswitch, soft_matched_part) + 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_PTR); +#ifdef SPACE_AFTER_L_OPTION + do_spec_1 (" ", 0, NULL_PTR); +#endif + do_spec_1 (buffer, 1, NULL_PTR); + do_spec_1 (multilib_dir, 1, NULL_PTR); + /* Make this a separate argument. */ + do_spec_1 (" ", 0, NULL_PTR); + } + } + if (!pl->require_machine_suffix) + { + if (is_directory (pl->prefix, multilib_dir, 1)) + { + do_spec_1 ("-L", 0, NULL_PTR); +#ifdef SPACE_AFTER_L_OPTION + do_spec_1 (" ", 0, NULL_PTR); +#endif + do_spec_1 (pl->prefix, 1, NULL_PTR); + do_spec_1 (multilib_dir, 1, NULL_PTR); + /* Make this a separate argument. */ + do_spec_1 (" ", 0, NULL_PTR); + } + } + } + if (machine_suffix) + { + if (is_directory (pl->prefix, machine_suffix, 1)) + { + do_spec_1 ("-L", 0, NULL_PTR); +#ifdef SPACE_AFTER_L_OPTION + do_spec_1 (" ", 0, NULL_PTR); +#endif + do_spec_1 (pl->prefix, 1, NULL_PTR); + /* 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_PTR); + /* Make this a separate argument. */ + do_spec_1 (" ", 0, NULL_PTR); + } + } + if (!pl->require_machine_suffix) + { + if (is_directory (pl->prefix, "", 1)) + { + do_spec_1 ("-L", 0, NULL_PTR); +#ifdef SPACE_AFTER_L_OPTION + do_spec_1 (" ", 0, NULL_PTR); +#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_PTR); + /* Make this a separate argument. */ + do_spec_1 (" ", 0, NULL_PTR); + } + } + } + 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 + { +#ifdef MKTEMP_EACH_FILE + /* ??? 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; +#else + obstack_grow (&obstack, temp_filename, temp_filename_length); + if (c == 'u' || c == 'U') + { + static int unique; + char buff[9]; + if (c == 'u') + unique++; + sprintf (buff, "%d", unique); + obstack_grow (&obstack, buff, strlen (buff)); + } +#endif + 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; + + if (gcc_exec_prefix) + { + do_spec_1 ("-iprefix", 1, NULL_PTR); + /* Make this a separate argument. */ + do_spec_1 (" ", 0, NULL_PTR); + do_spec_1 (gcc_exec_prefix, 1, NULL_PTR); + do_spec_1 (" ", 0, NULL_PTR); + } + + for (; pl; pl = pl->next) + { + do_spec_1 ("-isystem", 1, NULL_PTR); + /* Make this a separate argument. */ + do_spec_1 (" ", 0, NULL_PTR); + do_spec_1 (pl->prefix, 1, NULL_PTR); + do_spec_1 (" ", 0, NULL_PTR); + } + } + break; + + case 'o': + { + int max = n_infiles; +#ifdef LANG_SPECIFIC_DRIVER + max += lang_specific_extra_outfiles; +#endif + 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_PTR); + /* Make each accumulated option a separate argument. */ + do_spec_1 (" ", 0, NULL_PTR); + } + 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_PTR); + /* Make each accumulated option a separate argument. */ + do_spec_1 (" ", 0, NULL_PTR); + } + 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_PTR); + /* Make each accumulated option a separate argument. */ + do_spec_1 (" ", 0, NULL_PTR); + } + 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_PTR); + if (value != 0) + return value; + break; + + case '2': + value = do_spec_1 (cc1plus_spec, 0, NULL_PTR); + if (value != 0) + return value; + break; + + case 'a': + value = do_spec_1 (asm_spec, 0, NULL_PTR); + if (value != 0) + return value; + break; + + case 'A': + value = do_spec_1 (asm_final_spec, 0, NULL_PTR); + if (value != 0) + return value; + break; + + case 'c': + value = do_spec_1 (signed_char_spec, 0, NULL_PTR); + if (value != 0) + return value; + break; + + case 'C': + value = do_spec_1 (cpp_spec, 0, NULL_PTR); + if (value != 0) + return value; + break; + + case 'E': + value = do_spec_1 (endfile_spec, 0, NULL_PTR); + if (value != 0) + return value; + break; + + case 'l': + value = do_spec_1 (link_spec, 0, NULL_PTR); + if (value != 0) + return value; + break; + + case 'L': + value = do_spec_1 (lib_spec, 0, NULL_PTR); + if (value != 0) + return value; + break; + + case 'G': + value = do_spec_1 (libgcc_spec, 0, NULL_PTR); + 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_PTR); + 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_PTR); + if (value != 0) + return value; + } + break; + + case 'S': + value = do_spec_1 (startfile_spec, 0, NULL_PTR); + 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_PTR); + do_spec_1 (" ", 0, NULL_PTR); + 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_PTR); + 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_PTR); + 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_PTR); + 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 (p) + 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_PTR) < 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_PTR) < 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_PTR); + 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 (switchnum, prefix_length) + 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 (switchnum, omit_first_word, include_blanks) + int switchnum; + int omit_first_word; + int include_blanks; +{ + if (!omit_first_word) + { + do_spec_1 ("-", 0, NULL_PTR); + do_spec_1 (switches[switchnum].part1, 1, NULL_PTR); + } + + if (switches[switchnum].args != 0) + { + char **p; + for (p = switches[switchnum].args; *p; p++) + { + if (include_blanks) + do_spec_1 (" ", 0, NULL_PTR); + do_spec_1 (*p, 1, NULL_PTR); + } + } + + do_spec_1 (" ", 0, NULL_PTR); + 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 (name) + 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 (path1, path2, linker) + 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_PTR)) == 0) + || (cp - path == 10 + && strcmp (path, concat (dir_separator_str, "usr", + dir_separator_str, "lib", + dir_separator_str, ".", NULL_PTR)) == 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 (signum) + 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 (argc, argv) + 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. */ + +#ifndef MKTEMP_EACH_FILE + temp_filename = choose_temp_base (); + temp_filename_length = strlen (temp_filename); +#endif + + /* 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 = index (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 = index (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); + bcopy ((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_PTR); + just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR); + + 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); + } + + /* If not cross-compiling, look for startfiles in the standard places. */ + /* The fact that these are done here, after reading the specs file, + means that it cannot be found in these directories. + But that's okay. It should never be there anyway. */ + if (*cross_compile == '0') + { +#ifdef MD_EXEC_PREFIX + add_prefix (&exec_prefixes, md_exec_prefix, "GCC", 0, 0, NULL_PTR); + add_prefix (&startfile_prefixes, md_exec_prefix, "GCC", 0, 0, NULL_PTR); +#endif + +#ifdef MD_STARTFILE_PREFIX + add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC", + 0, 0, NULL_PTR); +#endif + +#ifdef MD_STARTFILE_PREFIX_1 + add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC", + 0, 0, NULL_PTR); +#endif + + /* If standard_startfile_prefix is relative, base it on + standard_exec_prefix. This lets us move the installed tree + as a unit. If GCC_EXEC_PREFIX is defined, base + standard_startfile_prefix on that as well. */ + if (*standard_startfile_prefix == '/' + || *standard_startfile_prefix == DIR_SEPARATOR + || *standard_startfile_prefix == '$' +#ifdef __MSDOS__ + /* Check for disk name on MS-DOS-based systems. */ + || (standard_startfile_prefix[1] == ':' + && (standard_startfile_prefix[2] == DIR_SEPARATOR + || standard_startfile_prefix[2] == '/')) +#endif + ) + add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS", + 0, 0, NULL_PTR); + else + { + if (gcc_exec_prefix) + add_prefix (&startfile_prefixes, + concat (gcc_exec_prefix, machine_suffix, + standard_startfile_prefix, NULL_PTR), + NULL_PTR, 0, 0, NULL_PTR); + add_prefix (&startfile_prefixes, + concat (standard_exec_prefix, + machine_suffix, + standard_startfile_prefix, NULL_PTR), + NULL_PTR, 0, 0, NULL_PTR); + } + + add_prefix (&startfile_prefixes, standard_startfile_prefix_1, + "BINUTILS", 0, 0, NULL_PTR); + add_prefix (&startfile_prefixes, standard_startfile_prefix_2, + "BINUTILS", 0, 0, NULL_PTR); +#if 0 /* Can cause surprises, and one can use -B./ instead. */ + add_prefix (&startfile_prefixes, "./", NULL_PTR, 0, 1, NULL_PTR); +#endif + } + else + { + if (*standard_startfile_prefix != DIR_SEPARATOR && gcc_exec_prefix) + add_prefix (&startfile_prefixes, + concat (gcc_exec_prefix, machine_suffix, + standard_startfile_prefix, NULL_PTR), + "BINUTILS", 0, 0, NULL_PTR); + } + + /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */ + if (gcc_exec_prefix) + { + char * temp = (char *) xmalloc (strlen (gcc_exec_prefix) + + strlen (spec_version) + + strlen (spec_machine) + 3); + strcpy (temp, gcc_exec_prefix); + strcat (temp, spec_machine); + strcat (temp, dir_separator_str); + strcat (temp, spec_version); + strcat (temp, dir_separator_str); + gcc_exec_prefix = temp; + } + + /* 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; +#ifdef LANG_SPECIFIC_DRIVER + i += lang_specific_extra_outfiles; +#endif + outfiles = (char **) xmalloc (i * sizeof (char *)); + bzero ((char *) outfiles, i * sizeof (char *)); + + /* Record which files were specified explicitly as link input. */ + + explicit_link_files = xmalloc (n_infiles); + bzero (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 (); + } + +#ifdef LANG_SPECIFIC_DRIVER + if (error_count == 0) + { + /* Make sure INPUT_FILE_NUMBER points to first available open + slot. */ + input_file_number = n_infiles; + if (lang_specific_pre_link ()) + error_count++; + } +#endif + + /* 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 (name, length, language) + 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. */ +#ifdef OS2 + && ((!strcmp (cp->suffix, + name + length - strlen (cp->suffix)) + || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")) + && !strcasecmp (cp->suffix, + name + length - strlen (cp->suffix))) +#else + && !strcmp (cp->suffix, + name + length - strlen (cp->suffix)) +#endif + )) + { + 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; + bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec, + (char *) new->spec, sizeof new->spec); + return new; + } + + /* A non-alias entry: return it. */ + return cp; + } + } + + return 0; +} + +PTR +xmalloc (size) + size_t size; +{ + register PTR value = (PTR) malloc (size); + if (value == 0) + fatal ("virtual memory exhausted"); + return value; +} + +PTR +xrealloc (old, size) + PTR old; + size_t size; +{ + register PTR ptr; + if (old) + ptr = (PTR) realloc (old, size); + else + ptr = (PTR) malloc (size); + if (ptr == 0) + fatal ("virtual memory exhausted"); + return ptr; +} + +static char * +save_string (s, len) + const char *s; + int len; +{ + register char *result = xmalloc (len + 1); + + bcopy (s, result, len); + result[len] = 0; + return result; +} + +static void +pfatal_with_name (name) + char *name; +{ + fatal ("%s: %s", name, xstrerror (errno)); +} + +static void +perror_with_name (name) + char *name; +{ + error ("%s: %s", name, xstrerror (errno)); +} + +static void +pfatal_pexecute (errmsg_fmt, errmsg_arg) + 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 VPROTO((char *format, ...)) +{ +#ifndef ANSI_PROTOTYPES + char *format; +#endif + va_list ap; + + VA_START (ap, format); + +#ifndef ANSI_PROTOTYPES + format = va_arg (ap, char *); +#endif + + fprintf (stderr, "%s: ", programname); + vfprintf (stderr, format, ap); + va_end (ap); + fprintf (stderr, "\n"); + delete_temp_files (); + exit (1); +} + +static void +error VPROTO((char *format, ...)) +{ +#ifndef ANSI_PROTOTYPES + char *format; +#endif + va_list ap; + + VA_START (ap, format); + +#ifndef ANSI_PROTOTYPES + format = va_arg (ap, char *); +#endif + + 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 (start) + 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 (p, len) + 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 (p, len) + 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; + } +} |