| /* 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 "intl.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 |
| |
| /* Define IS_DIR_SEPARATOR. */ |
| #ifndef DIR_SEPARATOR_2 |
| # define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR) |
| #else /* DIR_SEPARATOR_2 */ |
| # define IS_DIR_SEPARATOR(ch) \ |
| (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2)) |
| #endif /* DIR_SEPARATOR_2 */ |
| |
| 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 const char *print_file_name = NULL; |
| |
| /* As print_file_name, but search for executable file. */ |
| |
| static const 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 const 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((const char *, int)); |
| static void set_spec PROTO((const char *, const char *)); |
| static struct compiler *lookup_compiler PROTO((const char *, size_t, const char *)); |
| static char *build_search_list PROTO((struct path_prefix *, const char *, int)); |
| static void putenv_from_prefixes PROTO((struct path_prefix *, const char *)); |
| static char *find_a_file PROTO((struct path_prefix *, const 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((const char *, int, int)); |
| static void delete_if_ordinary PROTO((const 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 const char *handle_braces PROTO((const char *)); |
| static char *save_string PROTO((const char *, int)); |
| extern int do_spec PROTO((const char *)); |
| static int do_spec_1 PROTO((const char *, int, const char *)); |
| static const char *find_file PROTO((const char *)); |
| static int is_directory PROTO((const char *, const char *, int)); |
| static void validate_switches PROTO((const char *)); |
| static void validate_all_switches PROTO((void)); |
| static void give_switch PROTO((int, int, int)); |
| static int used_arg PROTO((const char *, int)); |
| static int default_arg PROTO((const char *, int)); |
| static void set_multilib_dir PROTO((void)); |
| static void print_multilib_info PROTO((void)); |
| static void pfatal_with_name PROTO((const char *)) ATTRIBUTE_NORETURN; |
| static void perror_with_name PROTO((const char *)); |
| static void pfatal_pexecute PROTO((const char *, const char *)) |
| ATTRIBUTE_NORETURN; |
| static void error PVPROTO((const char *, ...)) |
| ATTRIBUTE_PRINTF_1; |
| static void notice PVPROTO((const char *, ...)) |
| ATTRIBUTE_PRINTF_1; |
| static void display_help PROTO((void)); |
| static void add_preprocessor_option PROTO ((const char *, int)); |
| static void add_assembler_option PROTO ((const char *, int)); |
| static void add_linker_option PROTO ((const char *, int)); |
| static void process_command PROTO ((int, char **)); |
| static int execute PROTO ((void)); |
| static void unused_prefix_warnings PROTO ((struct path_prefix *)); |
| static void clear_args PROTO ((void)); |
| static void fatal_error PROTO ((int)); |
| |
| void fancy_abort PROTO((void)) ATTRIBUTE_NORETURN; |
| |
| /* Called before processing to change/add/remove arguments. */ |
| extern void lang_specific_driver PROTO ((void (*) PVPROTO((const 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; |
| |
| /* 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 "collect2" |
| #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; |
| const char *filename; |
| }; |
| |
| static struct user_specs *user_specs_head, *user_specs_tail; |
| |
| /* This defines which switch letters take arguments. */ |
| |
| #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \ |
| ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \ |
| || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \ |
| || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \ |
| || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \ |
| || (CHAR) == 'B' || (CHAR) == 'b') |
| |
| #ifndef SWITCH_TAKES_ARG |
| #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR) |
| #endif |
| |
| /* This defines which multi-letter switches take arguments. */ |
| |
| #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \ |
| (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \ |
| || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \ |
| || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \ |
| || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \ |
| || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \ |
| || !strcmp (STR, "isystem") || !strcmp (STR, "specs")) |
| |
| #ifndef WORD_SWITCH_TAKES_ARG |
| #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR) |
| #endif |
| |
| |
| #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 |
| { |
| const char *suffix; /* Use this compiler for input files |
| whose names end in this suffix. */ |
| |
| const 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} %{$} %I\ |
| %{C:%{!E:%eGNU C does not support -C without using -E}}\ |
| %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\ |
| %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\ |
| %{ansi|std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\ |
| %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\ |
| %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\ |
| %{ffast-math:-D__FAST_MATH__}\ |
| %{traditional} %{ftraditional:-traditional}\ |
| %{traditional-cpp:-traditional}\ |
| %{fleading-underscore} %{fno-leading-underscore}\ |
| %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\ |
| %i %{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}}\n}\ |
| %{!E:%{!M:%{!MM:cc1 %i %1 \ |
| %{std*} %{nostdinc*} %{A*} %{I*} %I\ |
| %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\ |
| %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\ |
| %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\ |
| %{ansi|std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\ |
| %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\ |
| %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\ |
| %{ffast-math:-D__FAST_MATH__}\ |
| %{H} %C %{D*} %{U*} %{i*} %Z\ |
| %{ftraditional:-traditional}\ |
| %{traditional-cpp:-traditional}\ |
| %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\ |
| %{aux-info*} %{Qn:-fno-ident}\ |
| %{--help:--help}\ |
| %{g*} %{O*} %{W*} %{w} %{pedantic*}\ |
| %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\ |
| %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\ |
| %{!S:as %a %Y\ |
| %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\ |
| %{!pipe:%g.s} %A\n }}}}" |
| #else /* ! USE_CPPLIB */ |
| "cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\ |
| %{C} %{v} %{A*} %{I*} %{P} %{$} %I\ |
| %{C:%{!E:%eGNU C does not support -C without using -E}}\ |
| %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\ |
| %{!no-gcc:-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__}}\ |
| %{ffast-math:-D__FAST_MATH__}\ |
| %{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", |
| "%{!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*} %{Qn:-fno-ident}\ |
| %{--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 }}}}" |
| #endif /* ! USE_CPPLIB */ |
| }}, |
| {"-", |
| {"%{E:cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\ |
| %{C} %{v} %{A*} %{I*} %{P} %{$} %I\ |
| %{C:%{!E:%eGNU C does not support -C without using -E}}\ |
| %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\ |
| %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\ |
| %{ansi|std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\ |
| %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\ |
| %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\ |
| %{ffast-math:-D__FAST_MATH__}\ |
| %{traditional} %{ftraditional:-traditional}\ |
| %{traditional-cpp:-traditional}\ |
| %{fleading-underscore} %{fno-leading-underscore}\ |
| %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\ |
| %i %W{o*}}\ |
| %{!E:%e-E required when input is from standard input}"}}, |
| {".h", {"@c-header"}}, |
| {"@c-header", |
| {"%{!E:%eCompilation of header file requested} \ |
| cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %{$} %I\ |
| %{C:%{!E:%eGNU C does not support -C without using -E}}\ |
| %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\ |
| %{!no-gcc:-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__}}\ |
| %{ffast-math:-D__FAST_MATH__}\ |
| %{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", |
| {"%{!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*} %{Qn:-fno-ident}\ |
| %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\ |
| %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\ |
| %{!S:as %a %Y\ |
| %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\ |
| %{!pipe:%g.s} %A\n }}}}"}}, |
| {".s", {"@assembler"}}, |
| {"@assembler", |
| {"%{!M:%{!MM:%{!E:%{!S:as %a %Y\ |
| %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\ |
| %i %A\n }}}}"}}, |
| {".S", {"@assembler-with-cpp"}}, |
| {"@assembler-with-cpp", |
| {"cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %{$} %I\ |
| %{C:%{!E:%eGNU C does not support -C without using -E}}\ |
| %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\ |
| -$ %{!undef:%p %P} -D__ASSEMBLER__ \ |
| %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\ |
| %{ffast-math:-D__FAST_MATH__}\ |
| %{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 const char *link_command_spec = |
| LINK_COMMAND_SPEC; |
| #else |
| #ifdef LINK_LIBGCC_SPECIAL |
| /* Don't generate -L options. */ |
| static const 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 const 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. */ |
| const char *name; |
| /* The equivalent short option. */ |
| const 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. */ |
| const 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; |
| const char ***argvp; |
| { |
| int i; |
| int argc = *argcp; |
| const char **argv = *argvp; |
| const char **newv = |
| (const char **) xmalloc ((argc + 2) * 2 * sizeof (const char *)); |
| int newindex = 0; |
| |
| i = 0; |
| newv[newindex++] = argv[i++]; |
| |
| while (i < argc) |
| { |
| /* Translate -- options. */ |
| if (argv[i][0] == '-' && argv[i][1] == '-') |
| { |
| size_t j; |
| /* Find a mapping that applies to this option. */ |
| for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++) |
| { |
| size_t optlen = strlen (option_map[j].name); |
| size_t arglen = strlen (argv[i]); |
| size_t complen = arglen > optlen ? optlen : arglen; |
| const char *arginfo = option_map[j].arg_info; |
| |
| if (arginfo == 0) |
| arginfo = ""; |
| |
| if (!strncmp (argv[i], option_map[j].name, complen)) |
| { |
| const 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] == '-') |
| { |
| const 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 |
| |
| if (!e) |
| return "errno = 0"; |
| |
| if (e > 0 && e < sys_nerr) |
| return sys_errlist[e]; |
| |
| return "errno = ?"; |
| #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) |
| notice ("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) |
| const char *name; |
| const 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) |
| notice ("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((const char *)); |
| |
| /* This is the list of suffixes and codes (%g/%u/%U) and the associated |
| temp file. */ |
| |
| static struct temp_name { |
| const char *suffix; /* suffix associated with the code. */ |
| int length; /* strlen (suffix). */ |
| int unique; /* Indicates whether %g or %u/%U was used. */ |
| const 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 const 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 */ |
| const 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 const char *machine_suffix = 0; |
| |
| /* Suffix to attach to directories searched for commands. |
| This is just `MACHINE/'. */ |
| |
| static const char *just_machine_suffix = 0; |
| |
| /* Adjusted value of GCC_EXEC_PREFIX envvar. */ |
| |
| static const 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 const char *standard_exec_prefix = STANDARD_EXEC_PREFIX; |
| static const char *standard_exec_prefix_1 = "/usr/lib/gcc/"; |
| #ifdef MD_EXEC_PREFIX |
| static const 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 const char *md_startfile_prefix = MD_STARTFILE_PREFIX; |
| #endif |
| #ifdef MD_STARTFILE_PREFIX_1 |
| static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1; |
| #endif |
| static const char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX; |
| static const char *standard_startfile_prefix_1 = "/lib/"; |
| static const char *standard_startfile_prefix_2 = "/usr/lib/"; |
| |
| #ifndef TOOLDIR_BASE_PREFIX |
| #define TOOLDIR_BASE_PREFIX "/usr/local/" |
| #endif |
| static const char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX; |
| static const char *tooldir_prefix; |
| |
| /* Subdirectory to use for locating libraries. Set by |
| set_multilib_dir based on the compilation options. */ |
| |
| static const 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) |
| const char *filename; |
| int main_p; |
| { |
| int desc; |
| int readlen; |
| struct stat statbuf; |
| char *buffer; |
| register char *p; |
| |
| if (verbose_flag) |
| notice ("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) |
| notice ("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) |
| { |
| notice ("rename spec %s to %s\n", p1, p2); |
| #ifdef DEBUG_SPECS |
| notice ("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 const char *temp_filename; |
| |
| /* Length of the prefix. */ |
| |
| static int temp_filename_length; |
| |
| /* Define the list of temporary files to delete. */ |
| |
| struct temp_file |
| { |
| const 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) |
| const 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) |
| const 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; |
| const 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; |
| const char *env_var; |
| { |
| putenv (build_search_list (paths, env_var, 1)); |
| } |
| |
| /* Search for NAME using the prefix list PREFIXES. MODE is passed to |
| access to check permissions. |
| Return 0 if not found, otherwise return its name, allocated with malloc. */ |
| |
| static char * |
| find_a_file (pprefix, name, mode) |
| struct path_prefix *pprefix; |
| const char *name; |
| int mode; |
| { |
| char *temp; |
| const 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 (IS_DIR_SEPARATOR (*name) |
| #ifdef HAVE_DOS_BASED_FILESYSTEM |
| /* Check for disk name on MS-DOS-based systems. */ |
| || (name[0] && name[1] == ':' && IS_DIR_SEPARATOR (name[2])) |
| #endif |
| ) |
| { |
| 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 |
| { |
| const 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 |
| notice ("\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 `validated' 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 |
| { |
| const char *part1; |
| char **args; |
| int live_cond; |
| int validated; |
| }; |
| |
| static struct switchstr *switches; |
| |
| static int n_switches; |
| |
| struct infile |
| { |
| const char *name; |
| const 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 const 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; |
| |
| if (name == NULL) |
| return NULL; |
| |
| 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 (IS_DIR_SEPARATOR (name[i])) |
| 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) |
| const 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) |
| const 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) |
| const 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; |
| const char *temp; |
| char *temp1; |
| 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 = temp1 = |
| save_string (version_string, strlen (version_string)); |
| for (; *temp1; ++temp1) |
| { |
| if (*temp1 == ' ') |
| { |
| *temp1 = '\0'; |
| break; |
| } |
| } |
| |
| /* Set up the default search paths. */ |
| |
| if (gcc_exec_prefix) |
| { |
| int len = strlen (gcc_exec_prefix); |
| if (len > (int) sizeof ("/lib/gcc-lib/")-1 |
| && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1]))) |
| { |
| temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1; |
| if (IS_DIR_SEPARATOR (*temp) |
| && strncmp (temp+1, "lib", 3) == 0 |
| && IS_DIR_SEPARATOR (temp[4]) |
| && 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) |
| { |
| const 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 (!IS_DIR_SEPARATOR (endp[-1])) |
| { |
| 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') |
| { |
| const 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 (!IS_DIR_SEPARATOR (endp[-1])) |
| { |
| 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') |
| { |
| const 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 (!IS_DIR_SEPARATOR (endp[-1])) |
| { |
| 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); |
| |
| /* Do language-specific adjustment/addition of flags. */ |
| lang_specific_driver (fatal, &argc, &argv, &added_libraries); |
| |
| /* 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)); |
| if (link_command_spec) |
| printf ("*link_command:\n%s\n\n", link_command_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 |
| && (IS_DIR_SEPARATOR (value[len - 8])))) |
| && strncmp (value + len - 7, "stage", 5) == 0 |
| && ISDIGIT (value[len - 2]) |
| && (IS_DIR_SEPARATOR (value[len - 1]))) |
| { |
| 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]+)?([- ].*)? */ |
| { |
| const 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 (!IS_DIR_SEPARATOR (*tooldir_prefix)) |
| { |
| 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].validated = 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].validated = 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].validated = 0; |
| /* This is always valid, since gcc.c itself understands it. */ |
| if (!strcmp (p, "save-temps")) |
| switches[n_switches].validated = 1; |
| else |
| { |
| char ch = switches[n_switches].part1[0]; |
| if (ch == 'V' || ch == 'b' || ch == 'B') |
| switches[n_switches].validated = 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. */ |
| |
| const char *input_filename; |
| static int input_file_number; |
| size_t input_filename_length; |
| static int basename_length; |
| static const char *input_basename; |
| static const 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) |
| const 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) |
| const char *spec; |
| int inswitch; |
| const char *soft_matched_part; |
| { |
| register const char *p = spec; |
| register int c; |
| int i; |
| const 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].validated = 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 (!IS_DIR_SEPARATOR (pl->prefix[0])) |
| 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 (IS_DIR_SEPARATOR (buffer[idx - 1])) |
| 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 (IS_DIR_SEPARATOR (buffer[idx - 1])) |
| 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. */ |
| { |
| const 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 (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; |
| const char *suffix = p; |
| |
| if (p[0] == '%' && p[1] == 'O') |
| { |
| p += 2; |
| /* We don't support extra suffix characters after %O. */ |
| if (*p == '.' || ISALPHA ((unsigned char)*p)) |
| abort (); |
| suffix = OBJECT_SUFFIX; |
| suffix_length = strlen (OBJECT_SUFFIX); |
| } |
| 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; |
| max += lang_specific_extra_outfiles; |
| |
| 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': |
| { |
| const 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 '(': |
| { |
| const 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 |
| notice ("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; |
| const 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 const char * |
| handle_braces (p) |
| register const char *p; |
| { |
| const char *filter, *body = NULL, *endbody = NULL; |
| 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 const 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; |
| const 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; |
| { |
| const 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].validated = 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].validated = 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].validated = 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].validated = 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 const char * |
| find_file (name) |
| const 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) |
| const char *path1; |
| const 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 (!IS_DIR_SEPARATOR (cp[-1])) |
| *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; |
| const char *p; |
| struct user_specs *uptr; |
| |
| p = argv[0] + strlen (argv[0]); |
| while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1])) |
| --p; |
| programname = p; |
| |
| #ifdef HAVE_LC_MESSAGES |
| setlocale (LC_MESSAGES, ""); |
| #endif |
| (void) bindtextdomain (PACKAGE, localedir); |
| (void) textdomain (PACKAGE); |
| |
| 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; |
| const 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); |
| |
| /* If not cross-compiling, look for startfiles in the standard places. */ |
| 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 (IS_DIR_SEPARATOR (*standard_startfile_prefix) |
| || *standard_startfile_prefix == '$' |
| #ifdef HAVE_DOS_BASED_FILESYSTEM |
| /* Check for disk name on MS-DOS-based systems. */ |
| || (standard_startfile_prefix[1] == ':' |
| && (IS_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 (!IS_DIR_SEPARATOR (*standard_startfile_prefix) && gcc_exec_prefix) |
| add_prefix (&startfile_prefixes, |
| concat (gcc_exec_prefix, machine_suffix, |
| standard_startfile_prefix, NULL_PTR), |
| "BINUTILS", 0, 0, NULL_PTR); |
| } |
| |
| /* 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 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].validated) |
| 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 ("\nFor bug reporting instructions, please see:\n"); |
| printf ("<URL:http://gcc.gnu.org/faq.html#bugreport>.\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) |
| notice ("gcc version %s\n", version_string); |
| else |
| notice ("gcc driver version %s executing gcc version %s\n", |
| version_string, compiler_version); |
| |
| 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; |
| i += lang_specific_extra_outfiles; |
| outfiles = (const 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 const 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 (IS_DIR_SEPARATOR (*p)) |
| 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]); |
| |
| { |
| char *p1 = (char *) xmalloc (len + 1); |
| |
| len = 0; |
| for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++) |
| if (cp->spec[j]) |
| { |
| strcpy (p1 + len, cp->spec[j]); |
| len += strlen (cp->spec[j]); |
| } |
| |
| value = do_spec (p1); |
| free (p1); |
| } |
| 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 (); |
| } |
| |
| 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++; |
| } |
| |
| /* Run ld to link all the compiler output files. */ |
| |
| if (error_count == 0) |
| { |
| int tmp = execution_count; |
| |
| /* We'll use ld if we can't find collect2. */ |
| if (! strcmp (linker_name_spec, "collect2")) |
| { |
| char *s = find_a_file (&exec_prefixes, "collect2", X_OK); |
| if (s == NULL) |
| linker_name_spec = "ld"; |
| } |
| /* 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 ("\nFor bug reporting instructions, please see:\n"); |
| printf ("<URL:http://gcc.gnu.org/faq.html#bugreport>\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) |
| const char *name; |
| size_t length; |
| const 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) |
| const char *name; |
| { |
| perror_with_name (name); |
| delete_temp_files (); |
| exit (1); |
| } |
| |
| static void |
| perror_with_name (name) |
| const char *name; |
| { |
| error ("%s: %s", name, xstrerror (errno)); |
| } |
| |
| static void |
| pfatal_pexecute (errmsg_fmt, errmsg_arg) |
| const char *errmsg_fmt; |
| const char *errmsg_arg; |
| { |
| if (errmsg_arg) |
| { |
| int save_errno = errno; |
| |
| /* 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; |
| |
| errno = save_errno; |
| } |
| |
| pfatal_with_name (errmsg_fmt); |
| } |
| |
| /* 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 */ |
| |
| void |
| fatal VPROTO((const char *msgid, ...)) |
| { |
| #ifndef ANSI_PROTOTYPES |
| const char *msgid; |
| #endif |
| va_list ap; |
| |
| VA_START (ap, msgid); |
| |
| #ifndef ANSI_PROTOTYPES |
| msgid = va_arg (ap, const char *); |
| #endif |
| |
| fprintf (stderr, "%s: ", programname); |
| vfprintf (stderr, _(msgid), ap); |
| va_end (ap); |
| fprintf (stderr, "\n"); |
| delete_temp_files (); |
| exit (1); |
| } |
| |
| static void |
| error VPROTO((const char *msgid, ...)) |
| { |
| #ifndef ANSI_PROTOTYPES |
| const char *msgid; |
| #endif |
| va_list ap; |
| |
| VA_START (ap, msgid); |
| |
| #ifndef ANSI_PROTOTYPES |
| msgid = va_arg (ap, const char *); |
| #endif |
| |
| fprintf (stderr, "%s: ", programname); |
| vfprintf (stderr, _(msgid), ap); |
| va_end (ap); |
| |
| fprintf (stderr, "\n"); |
| } |
| |
| static void |
| notice VPROTO((const char *msgid, ...)) |
| { |
| #ifndef ANSI_PROTOTYPES |
| const char *msgid; |
| #endif |
| va_list ap; |
| |
| VA_START (ap, msgid); |
| |
| #ifndef ANSI_PROTOTYPES |
| msgid = va_arg (ap, const char *); |
| #endif |
| |
| vfprintf (stderr, _(msgid), ap); |
| va_end (ap); |
| } |
| |
| |
| static void |
| validate_all_switches () |
| { |
| struct compiler *comp; |
| register const 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) |
| const char *start; |
| { |
| register const char *p = start; |
| const 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].validated = 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].validated = 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) |
| const 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) |
| const 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] != '.') |
| { |
| char * new_multilib_dir = xmalloc (this_path_len + 1); |
| strncpy (new_multilib_dir, this_path, this_path_len); |
| new_multilib_dir[this_path_len] = '\0'; |
| multilib_dir = new_multilib_dir; |
| } |
| 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; |
| } |
| } |