X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Fgcc.c;h=32fb21bfaff7348e9fd4a235aa3f37c603653fb1;hb=db1c99deee13fafacd47e6dda0ecdc5c7c80aa83;hp=e339c683d09064d03298bac4b10f925de65999be;hpb=16f5d9e4a2b7d3ebf704818ffd46760b4bdc4b8b;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/gcc.c b/gcc/gcc.c index e339c683d09..32fb21bfaff 100644 --- a/gcc/gcc.c +++ b/gcc/gcc.c @@ -1,7 +1,7 @@ /* Compiler driver program that can handle many languages. Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, - 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, - Inc. + 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 + Free Software Foundation, Inc. This file is part of GCC. @@ -86,6 +86,7 @@ compilation is specified by a string called a "spec". */ #include "prefix.h" #include "gcc.h" #include "flags.h" +#include "opts.h" /* By default there is no special suffix for target executables. */ /* FIXME: when autoconf is fixed, remove the host check - dj */ @@ -126,6 +127,9 @@ static const char dir_separator_str[] = { DIR_SEPARATOR, 0 }; /* Flag set by cppspec.c to 1. */ int is_cpp_driver; +/* Flag set to nonzero if an @file argument has been supplied to gcc. */ +static bool at_file_supplied; + /* Flag saying to pass the greatest exit code returned by a sub-process to the calling program. */ static int pass_exit_codes; @@ -167,6 +171,11 @@ static int print_multi_lib; static int print_help_list; +/* Flag saying to print the sysroot suffix used for searching for + headers. */ + +static int print_sysroot_headers_suffix; + /* Flag indicating whether we should print the command and arguments */ static int verbose_flag; @@ -178,9 +187,9 @@ static int verbose_flag; shell scripts to capture the driver-generated command line. */ static int verbose_only_flag; -/* Flag indicating to print target specific command line options. */ +/* Flag indicating how to print command line options of sub-processes. */ -static int target_help_flag; +static int print_subprocess_help; /* Flag indicating whether we should report subprocess execution times (if this is supported by the system - see pexecute.c). */ @@ -237,7 +246,7 @@ 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 +#ifdef CROSS_DIRECTORY_STRUCTURE static const char *cross_compile = "1"; #else static const char *cross_compile = "0"; @@ -287,10 +296,12 @@ static char *load_specs (const char *); static void read_specs (const char *, int); static void set_spec (const char *, const char *); static struct compiler *lookup_compiler (const char *, size_t, const char *); -static char *build_search_list (struct path_prefix *, const char *, int); -static void putenv_from_prefixes (struct path_prefix *, const char *); +static char *build_search_list (const struct path_prefix *, const char *, + bool, bool); +static void putenv_from_prefixes (const struct path_prefix *, const char *, + bool); static int access_check (const char *, int); -static char *find_a_file (struct path_prefix *, const char *, int, int); +static char *find_a_file (const struct path_prefix *, const char *, int, bool); static void add_prefix (struct path_prefix *, const char *, const char *, int, int, int); static void add_sysrooted_prefix (struct path_prefix *, const char *, @@ -313,13 +324,12 @@ static const char *eval_spec_function (const char *, const char *); static const char *handle_spec_function (const char *); static char *save_string (const char *, int); static void set_collect_gcc_options (void); -static void do_spec_path (struct prefix_list *, const char *, int, int, int, const char *, const char *); static int do_spec_1 (const char *, int, const char *); static int do_spec_2 (const char *); static void do_option_spec (const char *, const char *); static void do_self_spec (const char *); static const char *find_file (const char *); -static int is_directory (const char *, const char *, int); +static int is_directory (const char *, bool); static const char *validate_switches (const char *); static void validate_all_switches (void); static inline void validate_switches_from_spec (const char *); @@ -329,6 +339,7 @@ static int default_arg (const char *, int); static void set_multilib_dir (void); static void print_multilib_info (void); static void perror_with_name (const char *); +static void fatal_ice (const char *, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN; static void notice (const char *, ...) ATTRIBUTE_PRINTF_1; static void display_help (void); static void add_preprocessor_option (const char *, int); @@ -347,10 +358,13 @@ static void init_gcc_specs (struct obstack *, const char *, const char *, static const char *convert_filename (const char *, int, int); #endif +static const char *getenv_spec_function (int, const char **); static const char *if_exists_spec_function (int, const char **); static const char *if_exists_else_spec_function (int, const char **); static const char *replace_outfile_spec_function (int, const char **); static const char *version_compare_spec_function (int, const char **); +static const char *include_spec_function (int, const char **); +static const char *print_asm_header_spec_function (int, const char **); /* The Specs Language @@ -439,8 +453,8 @@ or with constant text in a single argument. SUFFIX characters following %O as they would following, for example, `.o'. %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot - (made from TARGET_SYSTEM_ROOT), and -isystem (made from COMPILER_PATH - and -B options) as necessary. + (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH + and -B options) and -imultilib as necessary. %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. @@ -506,15 +520,18 @@ or with constant text in a single argument. part of that switch that matched the '*'. %{.S:X} substitutes X, if processing a file with suffix S. %{!.S:X} substitutes X, if NOT processing a file with suffix S. - + %{,S:X} substitutes X, if processing a file which will use spec S. + %{!,S:X} substitutes X, if NOT processing a file which will use spec S. + %{S|T:X} substitutes X if either -S or -T was given to CC. This may be - combined with !, ., and * as above binding stronger than the OR. + combined with '!', '.', ',', and '*' as above binding stronger + than the OR. If %* appears in X, all of the alternatives must be starred, and only the first matching alternative is substituted. %{S:X; if S was given to CC, substitutes X; T:Y; else if T was given to CC, substitutes Y; :D} else substitutes D. There can be as many clauses as you need. - This may be combined with ., !, |, and * as above. + This may be combined with '.', '!', ',', '|', and '*' as above. %(Spec) processes a specification defined in a specs file as *Spec: %[Spec] as above, but put __ around -D arguments @@ -697,7 +714,8 @@ proper position among the other output files. */ %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\ %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\ %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\ - %{static:} %{L*} %(mfwrap) %(link_libgcc) %o %(mflib)\ + %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\ + %{fopenmp:%:include(libgomp.spec)%(link_gomp)} %(mflib)\ %{fprofile-arcs|fprofile-generate|coverage:-lgcov}\ %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\ %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}" @@ -736,6 +754,7 @@ static const char *link_spec = LINK_SPEC; static const char *lib_spec = LIB_SPEC; static const char *mfwrap_spec = MFWRAP_SPEC; static const char *mflib_spec = MFLIB_SPEC; +static const char *link_gomp_spec = ""; static const char *libgcc_spec = LIBGCC_SPEC; static const char *endfile_spec = ENDFILE_SPEC; static const char *startfile_spec = STARTFILE_SPEC; @@ -769,8 +788,9 @@ static const char *cpp_unique_options = %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\ %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\ %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\ - %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\ - %{remap} %{g3:-dD} %{H} %C %{D*&U*&A*} %{i*} %Z %i\ + %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\ + %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\ + %{H} %C %{D*&U*&A*} %{i*} %Z %i\ %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\ %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\ %{E|M|MM:%W{o*}}"; @@ -798,13 +818,15 @@ static const char *cc1_options = %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\ %{Qn:-fno-ident} %{--help:--help}\ %{--target-help:--target-help}\ + %{--help=*:--help=%(VALUE)}\ %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\ %{fsyntax-only:-o %j} %{-param*}\ %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\ %{coverage:-fprofile-arcs -ftest-coverage}"; static const char *asm_options = -"%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}"; +"%{ftarget-help:%:print-asm-header()} \ +%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}"; static const char *invoke_as = #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT @@ -834,7 +856,15 @@ static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS; #define DRIVER_SELF_SPECS "" #endif -static const char *const driver_self_specs[] = { DRIVER_SELF_SPECS }; +/* Adding -fopenmp should imply pthreads. This is particularly important + for targets that use different start files and suchlike. */ +#ifndef GOMP_SELF_SPECS +#define GOMP_SELF_SPECS "%{fopenmp: -pthread}" +#endif + +static const char *const driver_self_specs[] = { + DRIVER_SELF_SPECS, GOMP_SELF_SPECS +}; #ifndef OPTION_DEFAULT_SPECS #define OPTION_DEFAULT_SPECS { "", "" } @@ -1108,6 +1138,7 @@ static const struct option_map option_map[] = {"--print-multi-directory", "-print-multi-directory", 0}, {"--print-multi-os-directory", "-print-multi-os-directory", 0}, {"--print-prog-name", "-print-prog-name=", "aj"}, + {"--print-sysroot-headers-suffix", "-print-sysroot-headers-suffix", 0}, {"--profile", "-p", 0}, {"--profile-blocks", "-a", 0}, {"--quiet", "-q", 0}, @@ -1441,7 +1472,7 @@ static const char *gcc_libexec_prefix; #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/" #endif -#ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */ +#ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */ #undef MD_EXEC_PREFIX #undef MD_STARTFILE_PREFIX #undef MD_STARTFILE_PREFIX_1 @@ -1458,25 +1489,33 @@ static const char *gcc_libexec_prefix; #define MD_STARTFILE_PREFIX_1 "" #endif +/* These directories are locations set at configure-time based on the + --prefix option provided to configure. Their initializers are + defined in Makefile.in. These paths are not *directly* used when + gcc_exec_prefix is set because, in that case, we know where the + compiler has been installed, and use paths relative to that + location instead. */ static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX; +static const char *const standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX; +static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX; +static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX; + +/* For native compilers, these are well-known paths containing + components that may be provided by the system. For cross + compilers, these paths are not used. */ static const char *const standard_exec_prefix_1 = "/usr/libexec/gcc/"; static const char *const standard_exec_prefix_2 = "/usr/lib/gcc/"; static const char *md_exec_prefix = MD_EXEC_PREFIX; - static const char *md_startfile_prefix = MD_STARTFILE_PREFIX; static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1; -static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX; static const char *const standard_startfile_prefix_1 = STANDARD_STARTFILE_PREFIX_1; static const char *const standard_startfile_prefix_2 = STANDARD_STARTFILE_PREFIX_2; +/* A relative path to be used in finding the location of tools + relative to the driver. */ static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX; -static const char *tooldir_prefix; - -static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX; - -static const char *standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX; /* Subdirectory to use for locating libraries. Set by set_multilib_dir based on the compilation options. */ @@ -1533,6 +1572,7 @@ static struct spec_list static_specs[] = INIT_STATIC_SPEC ("lib", &lib_spec), INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec), INIT_STATIC_SPEC ("mflib", &mflib_spec), + INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec), INIT_STATIC_SPEC ("libgcc", &libgcc_spec), INIT_STATIC_SPEC ("startfile", &startfile_spec), INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces), @@ -1576,10 +1616,16 @@ static struct spec_list *specs = (struct spec_list *) 0; static const struct spec_function static_spec_functions[] = { + { "getenv", getenv_spec_function }, { "if-exists", if_exists_spec_function }, { "if-exists-else", if_exists_else_spec_function }, { "replace-outfile", replace_outfile_spec_function }, { "version-compare", version_compare_spec_function }, + { "include", include_spec_function }, + { "print-asm-header", print_asm_header_spec_function }, +#ifdef EXTRA_SPEC_FUNCTIONS + EXTRA_SPEC_FUNCTIONS +#endif { 0, 0 } }; @@ -1600,25 +1646,30 @@ init_gcc_specs (struct obstack *obstack, const char *shared_name, { char *buf; - buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name, - "}%{!static:%{!static-libgcc:", + buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name, "}" + "%{!static:%{!static-libgcc:" #if USE_LD_AS_NEEDED - "%{!shared-libgcc:", static_name, - " --as-needed ", shared_name, " --no-as-needed}" - "%{shared-libgcc:", shared_name, "%{!shared: ", static_name, - "}", + "%{!shared-libgcc:", + static_name, " --as-needed ", shared_name, " --no-as-needed" + "}" + "%{shared-libgcc:", + shared_name, "%{!shared: ", static_name, "}" + "}" #else - "%{!shared:%{!shared-libgcc:", static_name, " ", - eh_name, "}%{shared-libgcc:", shared_name, " ", - static_name, "}}%{shared:", + "%{!shared:" + "%{!shared-libgcc:", static_name, " ", eh_name, "}" + "%{shared-libgcc:", shared_name, " ", static_name, "}" + "}" #ifdef LINK_EH_SPEC - "%{shared-libgcc:", shared_name, - "}%{!shared-libgcc:", static_name, "}", + "%{shared:" + "%{shared-libgcc:", shared_name, "}" + "%{!shared-libgcc:", static_name, "}" + "}" #else - shared_name, + "%{shared:", shared_name, "}" #endif #endif - "}}}", NULL); + "}}", NULL); obstack_grow (obstack, buf, strlen (buf)); free (buf); @@ -1804,7 +1855,7 @@ set_spec (const char *name, const char *spec) if (!sl) { /* Not found - make it. */ - sl = xmalloc (sizeof (struct spec_list)); + sl = XNEW (struct spec_list); sl->name = xstrdup (name); sl->name_len = name_len; sl->ptr_spec = &sl->ptr; @@ -1887,7 +1938,7 @@ static void alloc_args (void) { argbuf_length = 10; - argbuf = xmalloc (argbuf_length * sizeof (const char *)); + argbuf = XNEWVEC (const char *, argbuf_length); } /* Clear out the vector of arguments (after a command is executed). */ @@ -1946,14 +1997,14 @@ load_specs (const char *filename) pfatal_with_name (filename); /* Read contents of file into BUFFER. */ - buffer = xmalloc ((unsigned) statbuf.st_size + 1); + buffer = XNEWVEC (char, statbuf.st_size + 1); readlen = read (desc, buffer, (unsigned) statbuf.st_size); if (readlen < 0) pfatal_with_name (filename); buffer[readlen] = 0; close (desc); - specs = xmalloc (readlen + 1); + specs = XNEWVEC (char, readlen + 1); specs_p = specs; for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++) { @@ -2036,7 +2087,7 @@ read_specs (const char *filename, int main_p) (long) (p1 - buffer + 1)); p[-2] = '\0'; - new_filename = find_a_file (&startfile_prefixes, p1, R_OK, 0); + new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true); read_specs (new_filename ? new_filename : p1, FALSE); continue; } @@ -2055,7 +2106,7 @@ read_specs (const char *filename, int main_p) (long) (p1 - buffer + 1)); p[-2] = '\0'; - new_filename = find_a_file (&startfile_prefixes, p1, R_OK, 0); + new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true); if (new_filename) read_specs (new_filename, FALSE); else if (verbose_flag) @@ -2269,7 +2320,7 @@ record_temp_file (const char *filename, int always_delete, int fail_delete) if (! strcmp (name, temp->name)) goto already1; - temp = xmalloc (sizeof (struct temp_file)); + temp = XNEW (struct temp_file); temp->next = always_delete_queue; temp->name = name; always_delete_queue = temp; @@ -2284,7 +2335,7 @@ record_temp_file (const char *filename, int always_delete, int fail_delete) if (! strcmp (name, temp->name)) goto already2; - temp = xmalloc (sizeof (struct temp_file)); + temp = XNEW (struct temp_file); temp->next = failure_delete_queue; temp->name = name; failure_delete_queue = temp; @@ -2352,64 +2403,213 @@ clear_failure_queue (void) failure_delete_queue = 0; } -/* Build a list of search directories from PATHS. - PREFIX is a string to prepend to the list. - If CHECK_DIR_P is nonzero we ensure the directory exists. - This is used mostly by putenv_from_prefixes so we use `collect_obstack'. - It is also used by the --print-search-dirs flag. */ - -static char * -build_search_list (struct path_prefix *paths, const char *prefix, - int check_dir_p) +/* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK + returns non-NULL. + If DO_MULTI is true iterate over the paths twice, first with multilib + suffix then without, otherwise iterate over the paths once without + adding a multilib suffix. When DO_MULTI is true, some attempt is made + to avoid visiting the same path twice, but we could do better. For + instance, /usr/lib/../lib is considered different from /usr/lib. + At least EXTRA_SPACE chars past the end of the path passed to + CALLBACK are available for use by the callback. + CALLBACK_INFO allows extra parameters to be passed to CALLBACK. + + Returns the value returned by CALLBACK. */ + +static void * +for_each_path (const struct path_prefix *paths, + bool do_multi, + size_t extra_space, + void *(*callback) (char *, void *), + void *callback_info) { - 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)); - obstack_1grow (&collect_obstack, '='); - - for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next) + struct prefix_list *pl; + const char *multi_dir = NULL; + const char *multi_os_dir = NULL; + const char *multi_suffix; + const char *just_multi_suffix; + char *path = NULL; + void *ret = NULL; + bool skip_multi_dir = false; + bool skip_multi_os_dir = false; + + multi_suffix = machine_suffix; + just_multi_suffix = just_machine_suffix; + if (do_multi && multilib_dir && strcmp (multilib_dir, ".") != 0) { - int len = strlen (pprefix->prefix); + multi_dir = concat (multilib_dir, dir_separator_str, NULL); + multi_suffix = concat (multi_suffix, multi_dir, NULL); + just_multi_suffix = concat (just_multi_suffix, multi_dir, NULL); + } + if (do_multi && multilib_os_dir && strcmp (multilib_os_dir, ".") != 0) + multi_os_dir = concat (multilib_os_dir, dir_separator_str, NULL); - if (machine_suffix - && (! check_dir_p - || is_directory (pprefix->prefix, machine_suffix, 0))) + while (1) + { + size_t multi_dir_len = 0; + size_t multi_os_dir_len = 0; + size_t suffix_len; + size_t just_suffix_len; + size_t len; + + if (multi_dir) + multi_dir_len = strlen (multi_dir); + if (multi_os_dir) + multi_os_dir_len = strlen (multi_os_dir); + suffix_len = strlen (multi_suffix); + just_suffix_len = strlen (just_multi_suffix); + + if (path == NULL) { - 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); + len = paths->max_len + extra_space + 1; + if (suffix_len > multi_os_dir_len) + len += suffix_len; + else + len += multi_os_dir_len; + path = XNEWVEC (char, len); } - if (just_machine_suffix - && pprefix->require_machine_suffix == 2 - && (! check_dir_p - || is_directory (pprefix->prefix, just_machine_suffix, 0))) + for (pl = paths->plist; pl != 0; pl = pl->next) { - if (! first_time) - obstack_1grow (&collect_obstack, PATH_SEPARATOR); + len = strlen (pl->prefix); + memcpy (path, pl->prefix, len); + + /* Look first in MACHINE/VERSION subdirectory. */ + if (!skip_multi_dir) + { + memcpy (path + len, multi_suffix, suffix_len + 1); + ret = callback (path, callback_info); + if (ret) + break; + } - first_time = FALSE; - obstack_grow (&collect_obstack, pprefix->prefix, len); - obstack_grow (&collect_obstack, just_machine_suffix, - just_suffix_len); + /* Some paths are tried with just the machine (ie. target) + subdir. This is used for finding as, ld, etc. */ + if (!skip_multi_dir + && pl->require_machine_suffix == 2) + { + memcpy (path + len, just_multi_suffix, just_suffix_len + 1); + ret = callback (path, callback_info); + if (ret) + break; + } + + /* Now try the base path. */ + if (!pl->require_machine_suffix + && !(pl->os_multilib ? skip_multi_os_dir : skip_multi_dir)) + { + const char *this_multi; + size_t this_multi_len; + + if (pl->os_multilib) + { + this_multi = multi_os_dir; + this_multi_len = multi_os_dir_len; + } + else + { + this_multi = multi_dir; + this_multi_len = multi_dir_len; + } + + if (this_multi_len) + memcpy (path + len, this_multi, this_multi_len + 1); + else + path[len] = '\0'; + + ret = callback (path, callback_info); + if (ret) + break; + } } + if (pl) + break; - if (! pprefix->require_machine_suffix) - { - if (! first_time) - obstack_1grow (&collect_obstack, PATH_SEPARATOR); + if (multi_dir == NULL && multi_os_dir == NULL) + break; - first_time = FALSE; - obstack_grow (&collect_obstack, pprefix->prefix, len); + /* Run through the paths again, this time without multilibs. + Don't repeat any we have already seen. */ + if (multi_dir) + { + free ((char *) multi_dir); + multi_dir = NULL; + free ((char *) multi_suffix); + multi_suffix = machine_suffix; + free ((char *) just_multi_suffix); + just_multi_suffix = just_machine_suffix; } + else + skip_multi_dir = true; + if (multi_os_dir) + { + free ((char *) multi_os_dir); + multi_os_dir = NULL; + } + else + skip_multi_os_dir = true; + } + + if (multi_dir) + { + free ((char *) multi_dir); + free ((char *) multi_suffix); + free ((char *) just_multi_suffix); } + if (multi_os_dir) + free ((char *) multi_os_dir); + if (ret != path) + free (path); + return ret; +} + +/* Callback for build_search_list. Adds path to obstack being built. */ + +struct add_to_obstack_info { + struct obstack *ob; + bool check_dir; + bool first_time; +}; + +static void * +add_to_obstack (char *path, void *data) +{ + struct add_to_obstack_info *info = data; + + if (info->check_dir && !is_directory (path, false)) + return NULL; + + if (!info->first_time) + obstack_1grow (info->ob, PATH_SEPARATOR); + + obstack_grow (info->ob, path, strlen (path)); + + info->first_time = false; + return NULL; +} + +/* Build a list of search directories from PATHS. + PREFIX is a string to prepend to the list. + If CHECK_DIR_P is true we ensure the directory exists. + If DO_MULTI is true, multilib paths are output first, then + non-multilib paths. + 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 (const struct path_prefix *paths, const char *prefix, + bool check_dir, bool do_multi) +{ + struct add_to_obstack_info info; + + info.ob = &collect_obstack; + info.check_dir = check_dir; + info.first_time = true; + + obstack_grow (&collect_obstack, prefix, strlen (prefix)); + obstack_1grow (&collect_obstack, '='); + + for_each_path (paths, do_multi, 0, add_to_obstack, &info); obstack_1grow (&collect_obstack, '\0'); return XOBFINISH (&collect_obstack, char *); @@ -2419,9 +2619,10 @@ build_search_list (struct path_prefix *paths, const char *prefix, for collect. */ static void -putenv_from_prefixes (struct path_prefix *paths, const char *env_var) +putenv_from_prefixes (const struct path_prefix *paths, const char *env_var, + bool do_multi) { - putenv (build_search_list (paths, env_var, 1)); + putenv (build_search_list (paths, env_var, true, do_multi)); } /* Check whether NAME can be accessed in MODE. This is like access, @@ -2442,20 +2643,53 @@ access_check (const char *name, int mode) return access (name, mode); } +/* Callback for find_a_file. Appends the file name to the directory + path. If the resulting file exists in the right mode, return the + full pathname to the file. */ + +struct file_at_path_info { + const char *name; + const char *suffix; + int name_len; + int suffix_len; + int mode; +}; + +static void * +file_at_path (char *path, void *data) +{ + struct file_at_path_info *info = data; + size_t len = strlen (path); + + memcpy (path + len, info->name, info->name_len); + len += info->name_len; + + /* Some systems have a suffix for executable files. + So try appending that first. */ + if (info->suffix_len) + { + memcpy (path + len, info->suffix, info->suffix_len + 1); + if (access_check (path, info->mode) == 0) + return path; + } + + path[len] = '\0'; + if (access_check (path, info->mode) == 0) + return path; + + return NULL; +} + /* Search for NAME using the prefix list PREFIXES. MODE is passed to - access to check permissions. + access to check permissions. If DO_MULTI is true, search multilib + paths then non-multilib paths, otherwise do not search multilib paths. Return 0 if not found, otherwise return its name, allocated with malloc. */ static char * -find_a_file (struct path_prefix *pprefix, const char *name, int mode, - int multilib) +find_a_file (const struct path_prefix *pprefix, const char *name, int mode, + bool do_multi) { - char *temp; - const char *const file_suffix = - ((mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : ""); - struct prefix_list *pl; - int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1; - const char *multilib_name, *multilib_os_name; + struct file_at_path_info info; #ifdef DEFAULT_ASSEMBLER if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0) @@ -2467,112 +2701,24 @@ find_a_file (struct path_prefix *pprefix, const char *name, int mode, return xstrdup (DEFAULT_LINKER); #endif - if (machine_suffix) - len += strlen (machine_suffix); - - multilib_name = name; - multilib_os_name = name; - if (multilib && multilib_os_dir) - { - int len1 = multilib_dir ? strlen (multilib_dir) + 1 : 0; - int len2 = strlen (multilib_os_dir) + 1; - - len += len1 > len2 ? len1 : len2; - if (multilib_dir) - multilib_name = ACONCAT ((multilib_dir, dir_separator_str, name, - NULL)); - if (strcmp (multilib_os_dir, ".") != 0) - multilib_os_name = ACONCAT ((multilib_os_dir, dir_separator_str, name, - NULL)); - } - - temp = xmalloc (len); - /* Determine the filename to execute (special case for absolute paths). */ if (IS_ABSOLUTE_PATH (name)) { if (access (name, mode) == 0) - { - strcpy (temp, name); - return temp; - } - } - else - for (pl = pprefix->plist; pl; pl = pl->next) - { - const char *this_name - = pl->os_multilib ? multilib_os_name : multilib_name; - - 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, multilib_name); - strcat (temp, file_suffix); - if (access_check (temp, mode) == 0) - return temp; - } - - /* Now try just the multilib_name. */ - strcpy (temp, pl->prefix); - strcat (temp, machine_suffix); - strcat (temp, multilib_name); - if (access_check (temp, mode) == 0) - 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, multilib_name); - strcat (temp, file_suffix); - if (access_check (temp, mode) == 0) - return temp; - } - - strcpy (temp, pl->prefix); - strcat (temp, just_machine_suffix); - strcat (temp, multilib_name); - if (access_check (temp, mode) == 0) - return temp; - } + return xstrdup (name); - /* 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, this_name); - strcat (temp, file_suffix); - if (access_check (temp, mode) == 0) - return temp; - } + return NULL; + } - strcpy (temp, pl->prefix); - strcat (temp, this_name); - if (access_check (temp, mode) == 0) - return temp; - } - } + info.name = name; + info.suffix = (mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : ""; + info.name_len = strlen (info.name); + info.suffix_len = strlen (info.suffix); + info.mode = mode; - free (temp); - return 0; + return for_each_path (pprefix, do_multi, info.name_len + info.suffix_len, + file_at_path, &info); } /* Ranking of prefixes in the sort list. -B prefixes are put before @@ -2618,7 +2764,7 @@ add_prefix (struct path_prefix *pprefix, const char *prefix, if (len > pprefix->max_len) pprefix->max_len = len; - pl = xmalloc (sizeof (struct prefix_list)); + pl = XNEW (struct prefix_list); pl->prefix = prefix; pl->require_machine_suffix = require_machine_suffix; pl->priority = priority; @@ -2630,6 +2776,7 @@ add_prefix (struct path_prefix *pprefix, const char *prefix, } /* Same as add_prefix, but prepending target_system_root to prefix. */ +/* The target_system_root prefix has been relocated by gcc_exec_prefix. */ static void add_sysrooted_prefix (struct path_prefix *pprefix, const char *prefix, const char *component, @@ -2691,7 +2838,7 @@ execute (void) commands[0].prog = argbuf[0]; /* first command. */ commands[0].argv = &argbuf[0]; - string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, 0); + string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, false); if (string) commands[0].argv[0] = string; @@ -2706,7 +2853,7 @@ execute (void) 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, 0); + X_OK, false); if (string) commands[n_commands].argv[0] = string; n_commands++; @@ -2871,17 +3018,18 @@ execute (void) we would otherwise have succeeded. */ if (WTERMSIG (status) == SIGPIPE && (signal_count || greatest_status >= MIN_FATAL_STATUS)) - ; + { + signal_count++; + ret_code = -1; + } else #endif - fatal ("\ + fatal_ice ("\ Internal error: %s (program %s)\n\ Please submit a full bug report.\n\ See %s for instructions.", - strsignal (WTERMSIG (status)), commands[i].prog, - bug_report_url); - signal_count++; - ret_code = -1; + strsignal (WTERMSIG (status)), commands[i].prog, + bug_report_url); } else if (WIFEXITED (status) && WEXITSTATUS (status) >= MIN_FATAL_STATUS) @@ -3044,6 +3192,8 @@ display_help (void) fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout); fputs (_(" --help Display this information\n"), stdout); fputs (_(" --target-help Display target specific command line options\n"), stdout); + fputs (_(" --help={target|optimizers|warnings|undocumented|params}[,{[^]joined|[^]separate}]\n"), stdout); + fputs (_(" Display specific types of command line options\n"), stdout); if (! verbose_flag) fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout); fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout); @@ -3058,6 +3208,7 @@ display_help (void) -print-multi-lib Display the mapping between command line options and\n\ multiple library search directories\n"), stdout); fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout); + fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout); fputs (_(" -Wa, Pass comma-separated on to the assembler\n"), stdout); fputs (_(" -Wp, Pass comma-separated on to the preprocessor\n"), stdout); fputs (_(" -Wl, Pass comma-separated on to the linker\n"), stdout); @@ -3072,7 +3223,7 @@ display_help (void) fputs (_(" -std= Assume that the input sources are for \n"), stdout); fputs (_("\ --sysroot= Use as the root directory for headers\n\ - for headers and libraries\n"), stdout); + and libraries\n"), stdout); fputs (_(" -B Add to the compiler's search paths\n"), stdout); fputs (_(" -b Run gcc for target , if installed\n"), stdout); fputs (_(" -V Run gcc version number , if installed\n"), stdout); @@ -3105,7 +3256,7 @@ add_preprocessor_option (const char *option, int len) n_preprocessor_options++; if (! preprocessor_options) - preprocessor_options = xmalloc (n_preprocessor_options * sizeof (char *)); + preprocessor_options = XNEWVEC (char *, n_preprocessor_options); else preprocessor_options = xrealloc (preprocessor_options, n_preprocessor_options * sizeof (char *)); @@ -3120,7 +3271,7 @@ add_assembler_option (const char *option, int len) n_assembler_options++; if (! assembler_options) - assembler_options = xmalloc (n_assembler_options * sizeof (char *)); + assembler_options = XNEWVEC (char *, n_assembler_options); else assembler_options = xrealloc (assembler_options, n_assembler_options * sizeof (char *)); @@ -3134,7 +3285,7 @@ add_linker_option (const char *option, int len) n_linker_options++; if (! linker_options) - linker_options = xmalloc (n_linker_options * sizeof (char *)); + linker_options = XNEWVEC (char *, n_linker_options); else linker_options = xrealloc (linker_options, n_linker_options * sizeof (char *)); @@ -3156,8 +3307,9 @@ process_command (int argc, const char **argv) int lang_n_infiles = 0; #ifdef MODIFY_TARGET_NAME int is_modify_target_name; - int j; + unsigned int j; #endif + const char *tooldir_prefix; GET_ENVIRONMENT (gcc_exec_prefix, "GCC_EXEC_PREFIX"); @@ -3179,11 +3331,11 @@ process_command (int argc, const char **argv) } /* If there is a -V or -b option (or both), process it now, before - trying to interpret the rest of the command line. + trying to interpret the rest of the command line. Use heuristic that all configuration names must have at least one dash '-'. This allows us to pass options starting with -b. */ if (argc > 1 && argv[1][0] == '-' - && (argv[1][1] == 'V' || + && (argv[1][1] == 'V' || ((argv[1][1] == 'b') && (NULL != strchr(argv[1] + 2,'-'))))) { const char *new_version = DEFAULT_TARGET_VERSION; @@ -3254,11 +3406,27 @@ process_command (int argc, const char **argv) putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL)); } else - gcc_libexec_prefix = make_relative_prefix (gcc_exec_prefix, - standard_exec_prefix, - standard_libexec_prefix); + { + /* make_relative_prefix requires a program name, but + GCC_EXEC_PREFIX is typically a directory name with a trailing + / (which is ignored by make_relative_prefix), so append a + program name. */ + char *tmp_prefix = concat (gcc_exec_prefix, "gcc", NULL); + gcc_libexec_prefix = make_relative_prefix (tmp_prefix, + standard_exec_prefix, + standard_libexec_prefix); + + /* The path is unrelocated, so fallback to the original setting. */ + if (!gcc_libexec_prefix) + gcc_libexec_prefix = standard_libexec_prefix; + + free (tmp_prefix); + } #else #endif + /* From this point onward, gcc_exec_prefix is non-null if the toolchain + is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX + or an automatically created GCC_EXEC_PREFIX from argv[0]. */ if (gcc_exec_prefix) { @@ -3420,7 +3588,7 @@ process_command (int argc, const char **argv) { /* translate_options () has turned --version into -fversion. */ printf (_("%s (GCC) %s\n"), programname, version_string); - printf ("Copyright %s 2005 Free Software Foundation, Inc.\n", + printf ("Copyright %s 2007 Free Software Foundation, Inc.\n", _("(C)")); fputs (_("This is free software; see the source for copying conditions. There is NO\n\ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"), @@ -3442,10 +3610,19 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n" add_assembler_option ("--help", 6); add_linker_option ("--help", 6); } + else if (strncmp (argv[i], "-fhelp=", 7) == 0) + { + /* translate_options () has turned --help into -fhelp. */ + print_subprocess_help = 2; + + /* We will be passing a dummy file on to the sub-processes. */ + n_infiles++; + n_switches++; + } else if (strcmp (argv[i], "-ftarget-help") == 0) { /* translate_options() has turned --target-help into -ftarget-help. */ - target_help_flag = 1; + print_subprocess_help = 1; /* We will be passing a dummy file on to the sub-processes. */ n_infiles++; @@ -3476,6 +3653,8 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n" print_multi_directory = 1; else if (! strcmp (argv[i], "-print-multi-os-directory")) print_multi_os_directory = 1; + else if (! strcmp (argv[i], "-print-sysroot-headers-suffix")) + print_sysroot_headers_suffix = 1; else if (! strncmp (argv[i], "-Wa,", 4)) { int prev, j; @@ -3564,7 +3743,7 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n" } else if (strcmp (argv[i], "-specs") == 0) { - struct user_specs *user = xmalloc (sizeof (struct user_specs)); + struct user_specs *user = XNEW (struct user_specs); if (++i >= argc) fatal ("argument to '-specs' is missing"); @@ -3578,7 +3757,7 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n" } else if (strncmp (argv[i], "-specs=", 7) == 0) { - struct user_specs *user = xmalloc (sizeof (struct user_specs)); + struct user_specs *user = XNEW (struct user_specs); if (strlen (argv[i]) == 7) fatal ("argument to '-specs=' is missing"); @@ -3616,7 +3795,10 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n" switch (c) { case 'b': - if (NULL == strchr(argv[i] + 2, '-')) break; + if (NULL == strchr(argv[i] + 2, '-')) + goto normal_switch; + + /* Fall through. */ case 'V': fatal ("'-%c' must come at the start of the command line", c); break; @@ -3643,37 +3825,15 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n" if appending a directory separator actually makes a valid directory name. */ if (! IS_DIR_SEPARATOR (value [len - 1]) - && is_directory (value, "", 0)) + && is_directory (value, false)) { - char *tmp = xmalloc (len + 2); + char *tmp = XNEWVEC (char, len + 2); strcpy (tmp, value); tmp[len] = DIR_SEPARATOR; tmp[++ len] = 0; value = tmp; } - /* As a kludge, if the arg is "[foo/]stageN/", just - add "[foo/]include" to the include prefix. */ - 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, "./", NULL, - PREFIX_PRIORITY_B_OPT, 0, 0); - else - { - char *string = xmalloc (len - 6); - memcpy (string, value, len - 7); - string[len - 7] = 0; - add_prefix (&include_prefixes, string, NULL, - PREFIX_PRIORITY_B_OPT, 0, 0); - } - } - add_prefix (&exec_prefixes, value, NULL, PREFIX_PRIORITY_B_OPT, 0, 0); add_prefix (&startfile_prefixes, value, NULL, @@ -3805,62 +3965,50 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n" use_pipes = 0; } - /* Set up the search paths before we go looking for config files. */ + /* Set up the search paths. We add directories that we expect to + contain GNU Toolchain components before directories specified by + the machine description so that we will find GNU components (like + the GNU assembler) before those of the host system. */ - /* 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. */ + /* If we don't know where the toolchain has been installed, use the + configured-in locations. */ + if (!gcc_exec_prefix) + { #ifndef OS2 - add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC", - PREFIX_PRIORITY_LAST, 1, 0); - add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS", - PREFIX_PRIORITY_LAST, 2, 0); - add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS", - PREFIX_PRIORITY_LAST, 2, 0); - add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS", - PREFIX_PRIORITY_LAST, 2, 0); - add_prefix (&exec_prefixes, standard_exec_prefix_2, "BINUTILS", - PREFIX_PRIORITY_LAST, 2, 0); + add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC", + PREFIX_PRIORITY_LAST, 1, 0); + add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS", + PREFIX_PRIORITY_LAST, 2, 0); + add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS", + PREFIX_PRIORITY_LAST, 2, 0); #endif + add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS", + PREFIX_PRIORITY_LAST, 1, 0); + } - add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS", - PREFIX_PRIORITY_LAST, 1, 0); - add_prefix (&startfile_prefixes, standard_exec_prefix_2, "BINUTILS", - PREFIX_PRIORITY_LAST, 1, 0); + /* If not cross-compiling, search well-known system locations. */ + if (*cross_compile == '0') + { +#ifndef OS2 + add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS", + PREFIX_PRIORITY_LAST, 2, 0); + add_prefix (&exec_prefixes, standard_exec_prefix_2, "BINUTILS", + PREFIX_PRIORITY_LAST, 2, 0); +#endif + add_prefix (&startfile_prefixes, standard_exec_prefix_2, "BINUTILS", + PREFIX_PRIORITY_LAST, 1, 0); + } + gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix)); tooldir_prefix = concat (tooldir_base_prefix, spec_machine, dir_separator_str, NULL); - /* If tooldir is relative, base it on exec_prefixes. A relative - tooldir lets us move the installed tree as a unit. - - If 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_ABSOLUTE_PATH (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); - - add_prefix (&exec_prefixes, - concat (gcc_exec_tooldir_prefix, "bin", - dir_separator_str, NULL), - NULL, PREFIX_PRIORITY_LAST, 0, 0); - add_prefix (&startfile_prefixes, - concat (gcc_exec_tooldir_prefix, "lib", - dir_separator_str, NULL), - NULL, PREFIX_PRIORITY_LAST, 0, 1); - } - - tooldir_prefix = concat (standard_exec_prefix, spec_machine, - dir_separator_str, spec_version, - dir_separator_str, tooldir_prefix, NULL); - } + /* Look for tools relative to the location from which the driver is + running, or, if that is not available, the configured prefix. */ + tooldir_prefix + = concat (gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix, + spec_machine, dir_separator_str, + spec_version, dir_separator_str, tooldir_prefix, NULL); add_prefix (&exec_prefixes, concat (tooldir_prefix, "bin", dir_separator_str, NULL), @@ -3892,8 +4040,8 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n" /* Then create the space for the vectors and scan again. */ - switches = xmalloc ((n_switches + 1) * sizeof (struct switchstr)); - infiles = xmalloc ((n_infiles + 1) * sizeof (struct infile)); + switches = XNEWVEC (struct switchstr, n_switches + 1); + infiles = XNEWVEC (struct infile, n_infiles + 1); n_switches = 0; n_infiles = 0; last_language_n_infiles = -1; @@ -3936,9 +4084,7 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n" ; else if (! strcmp (argv[i], "-print-multi-os-directory")) ; - else if (! strcmp (argv[i], "-ftarget-help")) - ; - else if (! strcmp (argv[i], "-fhelp")) + else if (! strcmp (argv[i], "-print-sysroot-headers-suffix")) ; else if (! strncmp (argv[i], "--sysroot=", strlen ("--sysroot="))) { @@ -4043,7 +4189,7 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n" if (i + n_args >= argc) fatal ("argument to '-%s' is missing", p); switches[n_switches].args - = xmalloc ((n_args + 1) * sizeof(const char *)); + = XNEWVEC (const char *, n_args + 1); while (j < n_args) switches[n_switches].args[j++] = argv[++i]; /* Null-terminate the vector. */ @@ -4053,12 +4199,12 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n" { /* On some systems, ld cannot handle some options without a space. So split the option from its argument. */ - char *part1 = xmalloc (2); + char *part1 = XNEWVEC (char, 2); part1[0] = c; part1[1] = '\0'; switches[n_switches].part1 = part1; - switches[n_switches].args = xmalloc (2 * sizeof (const char *)); + switches[n_switches].args = XNEWVEC (const char *, 2); switches[n_switches].args[0] = xstrdup (p+1); switches[n_switches].args[1] = 0; } @@ -4068,11 +4214,13 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n" switches[n_switches].live_cond = SWITCH_OK; switches[n_switches].validated = 0; switches[n_switches].ordering = 0; - /* These are always valid, since gcc.c itself understands them. */ + /* These are always valid, since gcc.c itself understands the + first four and gfortranspec.c understands -static-libgfortran. */ if (!strcmp (p, "save-temps") || !strcmp (p, "static-libgcc") || !strcmp (p, "shared-libgcc") - || !strcmp (p, "pipe")) + || !strcmp (p, "pipe") + || !strcmp (p, "static-libgfortran")) switches[n_switches].validated = 1; else { @@ -4105,34 +4253,14 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n" error ("warning: '-x %s' after last input file has no effect", spec_lang); /* Ensure we only invoke each subprocess once. */ - if (target_help_flag || print_help_list) + if (print_subprocess_help || print_help_list) { n_infiles = 1; - /* Create a dummy input file, so that we can pass --target-help on to - the various sub-processes. */ + /* Create a dummy input file, so that we can pass + the help option on to the various sub-processes. */ infiles[0].language = "c"; infiles[0].name = "help-dummy"; - - if (target_help_flag) - { - switches[n_switches].part1 = "--target-help"; - switches[n_switches].args = 0; - switches[n_switches].live_cond = SWITCH_OK; - switches[n_switches].validated = 0; - - n_switches++; - } - - if (print_help_list) - { - switches[n_switches].part1 = "--help"; - switches[n_switches].args = 0; - switches[n_switches].live_cond = SWITCH_OK; - switches[n_switches].validated = 0; - - n_switches++; - } } switches[n_switches].part1 = 0; @@ -4391,108 +4519,55 @@ do_self_spec (const char *spec) } } -void -do_spec_path (struct prefix_list *pl, const char *option, - int omit_if_relative, int separate_options, - int only_subdir, - const char *dir_for_machine_suffix, - const char *dir_for_no_suffix) +/* Callback for processing %D and %I specs. */ + +struct spec_path_info { + const char *option; + const char *append; + size_t append_len; + bool omit_relative; + bool separate_options; +}; + +static void * +spec_path (char *path, void *data) { - static size_t bufsize = 0; - static char *buffer; - int idx; - bool multilib_p = false; - - /* 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 (omit_if_relative - && !IS_ABSOLUTE_PATH (pl->prefix)) - return; + struct spec_path_info *info = data; + size_t len = 0; + char save = 0; - /* Try subdirectory if there is one. */ - if (machine_suffix && dir_for_machine_suffix) + if (info->omit_relative && !IS_ABSOLUTE_PATH (path)) + return NULL; + + if (info->append_len != 0) { - if (strlen (pl->prefix) + strlen (machine_suffix) - >= bufsize) - bufsize = (strlen (pl->prefix) - + strlen (machine_suffix)) * 2 + 1; - buffer = xrealloc (buffer, bufsize); - strcpy (buffer, pl->prefix); - strcat (buffer, machine_suffix); - if (is_directory (buffer, dir_for_machine_suffix, 1)) - { - multilib_p = true; - do_spec_1 (option, separate_options, NULL); - if (separate_options) - do_spec_1 (" ", 0, NULL); - do_spec_1 (buffer, 1, NULL); - do_spec_1 (dir_for_machine_suffix, 1, NULL); - /* Make this a separate argument. */ - do_spec_1 (" ", 0, NULL); - } - } - if (!pl->require_machine_suffix && dir_for_no_suffix) - { - if (is_directory (pl->prefix, dir_for_no_suffix, 1)) - { - multilib_p = true; - do_spec_1 (option, separate_options, NULL); - if (separate_options) - do_spec_1 (" ", 0, NULL); - do_spec_1 (pl->prefix, 1, NULL); - do_spec_1 (dir_for_no_suffix, 1, NULL); - /* Make this a separate argument. */ - do_spec_1 (" ", 0, NULL); - } + len = strlen (path); + memcpy (path + len, info->append, info->append_len + 1); } - if (only_subdir || multilib_p) - return; + if (!is_directory (path, true)) + return NULL; - if (machine_suffix) - { - if (is_directory (pl->prefix, machine_suffix, 1)) - { - do_spec_1 (option, separate_options, NULL); - if (separate_options) - do_spec_1 (" ", 0, NULL); - do_spec_1 (pl->prefix, 1, NULL); - /* Remove slash from machine_suffix. */ - if (strlen (machine_suffix) >= bufsize) - bufsize = strlen (machine_suffix) * 2 + 1; - buffer = 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); - /* Make this a separate argument. */ - do_spec_1 (" ", 0, NULL); - } - } - if (!pl->require_machine_suffix) + do_spec_1 (info->option, 1, NULL); + if (info->separate_options) + do_spec_1 (" ", 0, NULL); + + if (info->append_len == 0) { - if (is_directory (pl->prefix, "", 1)) - { - do_spec_1 (option, separate_options, NULL); - if (separate_options) - do_spec_1 (" ", 0, NULL); - /* Remove slash from pl->prefix. */ - if (strlen (pl->prefix) >= bufsize) - bufsize = strlen (pl->prefix) * 2 + 1; - buffer = 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); - /* Make this a separate argument. */ - do_spec_1 (" ", 0, NULL); - } + len = strlen (path); + save = path[len - 1]; + if (IS_DIR_SEPARATOR (path[len - 1])) + path[len - 1] = '\0'; } + + do_spec_1 (path, 1, NULL); + do_spec_1 (" ", 0, NULL); + + /* Must not damage the original path. */ + if (info->append_len == 0) + path[len - 1] = save; + + return NULL; } /* Process the sub-spec SPEC as a portion of a larger spec. @@ -4630,23 +4705,23 @@ do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part) that we search for startfiles. */ case 'D': { - struct prefix_list *pl = startfile_prefixes.plist; - - for (; pl; pl = pl->next) - { - const char *no_suffix_multilib_dir; + struct spec_path_info info; - no_suffix_multilib_dir = pl->os_multilib ? multilib_os_dir - : multilib_dir; - /* Do not separate options, include non-multilibbed variant. */ - do_spec_path (pl, "-L", + info.option = "-L"; + info.append_len = 0; #ifdef RELATIVE_PREFIX_NOT_LINKDIR - 1, + /* 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. */ + info.omit_relative = true; #else - 0, + info.omit_relative = false; #endif - 0, 0, multilib_dir, no_suffix_multilib_dir); - } + info.separate_options = false; + + for_each_path (&startfile_prefixes, true, 0, spec_path, &info); } break; @@ -4754,7 +4829,7 @@ do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part) else { saved_suffix - = xmalloc (suffix_length + = XNEWVEC (char, suffix_length + strlen (TARGET_OBJECT_SUFFIX)); strncpy (saved_suffix, suffix, suffix_length); strcpy (saved_suffix + suffix_length, @@ -4883,7 +4958,16 @@ do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part) case 'I': { - struct prefix_list *pl = include_prefixes.plist; + struct spec_path_info info; + + if (multilib_dir) + { + do_spec_1 ("-imultilib", 1, NULL); + /* Make this a separate argument. */ + do_spec_1 (" ", 0, NULL); + do_spec_1 (multilib_dir, 1, NULL); + do_spec_1 (" ", 0, NULL); + } if (gcc_exec_prefix) { @@ -4906,9 +4990,22 @@ do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part) do_spec_1 (" ", 0, NULL); } - for (; pl; pl = pl->next) - /* Separate options, don't include non-suffixed variant. */ - do_spec_path (pl, "-isystem", 0, 1, 1, "include", "include"); + info.option = "-isystem"; + info.append = "include"; + info.append_len = strlen (info.append); + info.omit_relative = false; + info.separate_options = true; + + for_each_path (&include_prefixes, false, info.append_len, + spec_path, &info); + + info.append = "include-fixed"; + if (*sysroot_hdrs_suffix_spec) + info.append = concat (info.append, dir_separator_str, + multilib_dir, NULL); + info.append_len = strlen (info.append); + for_each_path (&include_prefixes, false, info.append_len, + spec_path, &info); } break; @@ -4917,9 +5014,63 @@ do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part) int max = n_infiles; max += lang_specific_extra_outfiles; - for (i = 0; i < max; i++) - if (outfiles[i]) - store_arg (outfiles[i], 0, 0); + if (HAVE_GNU_LD && at_file_supplied) + { + /* We are going to expand `%o' to `@FILE', where FILE + is a newly-created temporary filename. The filenames + that would usually be expanded in place of %o will be + written to the temporary file. */ + + char *temp_file = make_temp_file (""); + char *at_argument; + char **argv; + int n_files, j, status; + FILE *f; + + at_argument = concat ("@", temp_file, NULL); + store_arg (at_argument, 0, 0); + + /* Convert OUTFILES into a form suitable for writeargv. */ + + /* Determine how many are non-NULL. */ + for (n_files = 0, i = 0; i < max; i++) + n_files += outfiles[i] != NULL; + + argv = alloca (sizeof (char *) * (n_files + 1)); + + /* Copy the strings over. */ + for (i = 0, j = 0; i < max; i++) + if (outfiles[i]) + { + argv[j] = (char *) outfiles[i]; + j++; + } + argv[j] = NULL; + + f = fopen (temp_file, "w"); + + if (f == NULL) + fatal ("could not open temporary response file %s", + temp_file); + + status = writeargv (argv, f); + + if (status) + fatal ("could not write to temporary response file %s", + temp_file); + + status = fclose (f); + + if (EOF == status) + fatal ("could not close temporary response file %s", + temp_file); + + record_temp_file (temp_file, !save_temps_flag, !save_temps_flag); + } + else + for (i = 0; i < max; i++) + if (outfiles[i]) + store_arg (outfiles[i], 0, 0); break; } @@ -5299,20 +5450,11 @@ do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part) static const struct spec_function * lookup_spec_function (const char *name) { - static const struct spec_function * const spec_function_tables[] = - { - static_spec_functions, - lang_specific_spec_functions, - }; const struct spec_function *sf; - unsigned int i; - for (i = 0; i < ARRAY_SIZE (spec_function_tables); i++) - { - for (sf = spec_function_tables[i]; sf->name != NULL; sf++) - if (strcmp (sf->name, name) == 0) - return sf; - } + for (sf = static_spec_functions; sf->name != NULL; sf++) + if (strcmp (sf->name, name) == 0) + return sf; return NULL; } @@ -5452,31 +5594,28 @@ handle_spec_function (const char *p) static inline bool input_suffix_matches (const char *atom, const char *end_atom) { - /* We special case the semantics of {.s:...} and {.S:...} and their - negative variants. Instead of testing the input filename suffix, - we test whether the input source file is an assembler file or an - assembler-with-cpp file respectively. This allows us to correctly - handle the -x command line option. */ - - if (atom + 1 == end_atom - && input_file_compiler - && input_file_compiler->suffix) - { - if (*atom == 's') - return !strcmp (input_file_compiler->suffix, "@assembler"); - if (*atom == 'S') - return !strcmp (input_file_compiler->suffix, "@assembler-with-cpp"); - } - return (input_suffix && !strncmp (input_suffix, atom, end_atom - atom) && input_suffix[end_atom - atom] == '\0'); } -/* Inline subroutine of handle_braces. Returns true if a switch +/* Subroutine of handle_braces. Returns true if the current + input file's spec name matches the atom bracketed by ATOM and END_ATOM. */ +static bool +input_spec_matches (const char *atom, const char *end_atom) +{ + return (input_file_compiler + && input_file_compiler->suffix + && input_file_compiler->suffix[0] != '\0' + && !strncmp (input_file_compiler->suffix + 1, atom, + end_atom - atom) + && input_file_compiler->suffix[end_atom - atom + 1] == '\0'); +} + +/* Subroutine of handle_braces. Returns true if a switch matching the atom bracketed by ATOM and END_ATOM appeared on the command line. */ -static inline bool +static bool switch_matches (const char *atom, const char *end_atom, int starred) { int i; @@ -5536,6 +5675,7 @@ handle_braces (const char *p) const char *orig = p; bool a_is_suffix; + bool a_is_spectype; bool a_is_starred; bool a_is_negated; bool a_matched; @@ -5556,8 +5696,12 @@ handle_braces (const char *p) goto invalid; /* Scan one "atom" (S in the description above of %{}, possibly - with !, ., or * modifiers). */ - a_matched = a_is_suffix = a_is_starred = a_is_negated = false; + with '!', '.', '@', ',', or '*' modifiers). */ + a_matched = false; + a_is_suffix = false; + a_is_starred = false; + a_is_negated = false; + a_is_spectype = false; SKIP_WHITE(); if (*p == '!') @@ -5566,6 +5710,8 @@ handle_braces (const char *p) SKIP_WHITE(); if (*p == '.') p++, a_is_suffix = true; + else if (*p == ',') + p++, a_is_spectype = true; atom = p; while (ISIDNUM(*p) || *p == '-' || *p == '+' || *p == '=' @@ -5583,7 +5729,7 @@ handle_braces (const char *p) /* Substitute the switch(es) indicated by the current atom. */ ordered_set = true; if (disjunct_set || n_way_choice || a_is_negated || a_is_suffix - || atom == end_atom) + || a_is_spectype || atom == end_atom) goto invalid; mark_matching_switches (atom, end_atom, a_is_starred); @@ -5602,7 +5748,8 @@ handle_braces (const char *p) if (atom == end_atom) { if (!n_way_choice || disj_matched || *p == '|' - || a_is_negated || a_is_suffix || a_is_starred) + || a_is_negated || a_is_suffix || a_is_spectype + || a_is_starred) goto invalid; /* An empty term may appear as the last choice of an @@ -5613,28 +5760,30 @@ handle_braces (const char *p) } else { - if (a_is_suffix && a_is_starred) - goto invalid; - - if (!a_is_starred) - disj_starred = false; - - /* Don't bother testing this atom if we already have a - match. */ - if (!disj_matched && !n_way_matched) - { - if (a_is_suffix) - a_matched = input_suffix_matches (atom, end_atom); - else - a_matched = switch_matches (atom, end_atom, a_is_starred); - - if (a_matched != a_is_negated) - { - disj_matched = true; - d_atom = atom; - d_end_atom = end_atom; - } - } + if ((a_is_suffix || a_is_spectype) && a_is_starred) + goto invalid; + + if (!a_is_starred) + disj_starred = false; + + /* Don't bother testing this atom if we already have a + match. */ + if (!disj_matched && !n_way_matched) + { + if (a_is_suffix) + a_matched = input_suffix_matches (atom, end_atom); + else if (a_is_spectype) + a_matched = input_spec_matches (atom, end_atom); + else + a_matched = switch_matches (atom, end_atom, a_is_starred); + + if (a_matched != a_is_negated) + { + disj_matched = true; + d_atom = atom; + d_end_atom = end_atom; + } + } } if (*p == ':') @@ -5894,48 +6043,27 @@ give_switch (int switchnum, int omit_first_word) static const char * find_file (const char *name) { - char *newname; - - /* Try multilib_dir if it is defined. */ - if (multilib_os_dir != NULL) - { - newname = find_a_file (&startfile_prefixes, name, R_OK, 1); - - /* 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, 0); + char *newname = find_a_file (&startfile_prefixes, name, R_OK, true); 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. */ + certain fixed names not needed by the linker. */ static int -is_directory (const char *path1, const char *path2, int linker) +is_directory (const char *path1, bool linker) { - int len1 = strlen (path1); - int len2 = strlen (path2); - char *path = alloca (3 + len1 + len2); + int len1; + char *path; 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. */ + /* Ensure the string ends with "/.". The resulting path will be a + directory even if the given path is a symbolic link. */ + len1 = strlen (path1); + path = alloca (3 + len1); memcpy (path, path1, len1); - memcpy (path + len1, path2, len2); - cp = path + len1 + len2; + cp = path + len1; if (!IS_DIR_SEPARATOR (cp[-1])) *cp++ = DIR_SEPARATOR; *cp++ = '.'; @@ -5943,13 +6071,13 @@ is_directory (const char *path1, const char *path2, int linker) /* Exclude directories that the linker is known to search. */ if (linker + && IS_DIR_SEPARATOR (path[0]) && ((cp - path == 6 - && strcmp (path, concat (dir_separator_str, "lib", - dir_separator_str, ".", NULL)) == 0) + && strncmp (path + 1, "lib", 3) == 0) || (cp - path == 10 - && strcmp (path, concat (dir_separator_str, "usr", - dir_separator_str, "lib", - dir_separator_str, ".", NULL)) == 0))) + && strncmp (path + 1, "usr", 3) == 0 + && IS_DIR_SEPARATOR (path[4]) + && strncmp (path + 5, "lib", 3) == 0))) return 0; return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode)); @@ -6010,10 +6138,10 @@ fatal_error (int signum) kill (getpid (), signum); } -extern int main (int, const char **); +extern int main (int, char **); int -main (int argc, const char **argv) +main (int argc, char **argv) { size_t i; int value; @@ -6024,6 +6152,7 @@ main (int argc, const char **argv) char *specs_file; const char *p; struct user_specs *uptr; + char **old_argv = argv; p = argv[0] + strlen (argv[0]); while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1])) @@ -6032,6 +6161,14 @@ main (int argc, const char **argv) xmalloc_set_program_name (programname); + expandargv (&argc, &argv); + + /* Determine if any expansions were made. */ + if (argv != old_argv) + at_file_supplied = true; + + prune_options (&argc, &argv); + #ifdef GCC_DRIVER_HOST_INITIALIZATION /* Perform host dependent initialization when needed. */ GCC_DRIVER_HOST_INITIALIZATION; @@ -6124,7 +6261,7 @@ main (int argc, const char **argv) Make a table of specified input files (infiles, n_infiles). Decode switches that are handled locally. */ - process_command (argc, argv); + process_command (argc, (const char **) argv); /* Initialize the vector of specs to just the default. This means one element containing 0s, as a terminator. */ @@ -6139,7 +6276,7 @@ main (int argc, const char **argv) spec_version, dir_separator_str, NULL); just_machine_suffix = concat (spec_machine, dir_separator_str, NULL); - specs_file = find_a_file (&startfile_prefixes, "specs", R_OK, 0); + specs_file = find_a_file (&startfile_prefixes, "specs", R_OK, true); /* Read the specs file unless it is a default one. */ if (specs_file != 0 && strcmp (specs_file, "specs")) read_specs (specs_file, TRUE); @@ -6248,18 +6385,16 @@ main (int argc, const char **argv) PREFIX_PRIORITY_LAST, 0, 1); else if (*cross_compile == '0') { - if (gcc_exec_prefix) - add_prefix (&startfile_prefixes, - concat (gcc_exec_prefix, machine_suffix, - standard_startfile_prefix, NULL), - NULL, PREFIX_PRIORITY_LAST, 0, 1); add_prefix (&startfile_prefixes, - concat (standard_exec_prefix, - machine_suffix, + concat (gcc_exec_prefix + ? gcc_exec_prefix : standard_exec_prefix, + machine_suffix, standard_startfile_prefix, NULL), NULL, PREFIX_PRIORITY_LAST, 0, 1); } + /* Sysrooted prefixes are relocated because target_system_root is + also relocated by gcc_exec_prefix. */ if (*standard_startfile_prefix_1) add_sysrooted_prefix (&startfile_prefixes, standard_startfile_prefix_1, "BINUTILS", @@ -6275,7 +6410,7 @@ main (int argc, const char **argv) for (uptr = user_specs_head; uptr; uptr = uptr->next) { char *filename = find_a_file (&startfile_prefixes, uptr->filename, - R_OK, 0); + R_OK, true); read_specs (filename ? filename : uptr->filename, FALSE); } @@ -6303,9 +6438,13 @@ main (int argc, const char **argv) 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)); + printf (_("install: %s%s\n"), + gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix, + gcc_exec_prefix ? "" : machine_suffix); + printf (_("programs: %s\n"), + build_search_list (&exec_prefixes, "", false, false)); + printf (_("libraries: %s\n"), + build_search_list (&startfile_prefixes, "", false, true)); return (0); } @@ -6346,14 +6485,19 @@ main (int argc, const char **argv) return (0); } - if (target_help_flag) - { - /* Print if any target specific options. */ - - /* We do not exit here. Instead we have created a fake input file - called 'target-dummy' which needs to be compiled, and we pass this - on to the various sub-processes, along with the --target-help - switch. */ + if (print_sysroot_headers_suffix) + { + if (*sysroot_hdrs_suffix_spec) + { + printf("%s\n", (target_sysroot_hdrs_suffix + ? target_sysroot_hdrs_suffix + : "")); + return (0); + } + else + /* The error status indicates that only one set of fixed + headers should be built. */ + fatal ("not configured with sysroot headers suffix"); } if (print_help_list) @@ -6421,16 +6565,16 @@ main (int argc, const char **argv) i = n_infiles; i += lang_specific_extra_outfiles; - outfiles = xcalloc (i, sizeof (char *)); + outfiles = XCNEWVEC (const char *, i); /* Record which files were specified explicitly as link input. */ - explicit_link_files = xcalloc (1, n_infiles); + explicit_link_files = XCNEWVEC (char, n_infiles); if (combine_flag) combine_inputs = true; else - combine_inputs = false; + combine_inputs = false; for (i = 0; (int) i < n_infiles; i++) { @@ -6461,7 +6605,7 @@ main (int argc, const char **argv) infiles[i].compiled = false; infiles[i].preprocessed = false; } - + if (!combine_inputs && have_c && have_o && lang_n_infiles > 1) fatal ("cannot specify -o with -c or -S with multiple files"); @@ -6615,22 +6759,29 @@ main (int argc, const char **argv) /* Run ld to link all the compiler output files. */ - if (num_linker_inputs > 0 && error_count == 0) + if (num_linker_inputs > 0 && error_count == 0 && print_subprocess_help < 2) { 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, 0); + char *s = find_a_file (&exec_prefixes, "collect2", X_OK, false); 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_ENV); + putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH", false); + putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV, true); + if (print_subprocess_help == 1) + { + printf (_("\nLinker options\n==============\n\n")); + printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\"" + " to the linker.\n\n")); + fflush (stdout); + } value = do_spec (link_command_spec); if (value < 0) error_count = 1; @@ -6642,7 +6793,8 @@ main (int argc, const char **argv) if (! linker_was_run && error_count == 0) for (i = 0; (int) i < n_infiles; i++) - if (explicit_link_files[i]) + if (explicit_link_files[i] + && !(infiles[i].language && infiles[i].language[0] == '*')) error ("%s: linker input file unused because linking not done", outfiles[i]); @@ -6736,7 +6888,7 @@ lookup_compiler (const char *name, size_t length, const char *language) static char * save_string (const char *s, int len) { - char *result = xmalloc (len + 1); + char *result = XNEWVEC (char, len + 1); memcpy (result, s, len); result[len] = 0; @@ -6762,12 +6914,27 @@ perror_with_name (const char *name) void fancy_abort (const char *file, int line, const char *func) { - fatal ("internal gcc abort in %s, at %s:%d", func, file, line); + fatal_ice ("internal gcc abort in %s, at %s:%d", func, file, line); } /* Output an error message and exit. */ void +fatal_ice (const char *cmsgid, ...) +{ + va_list ap; + + va_start (ap, cmsgid); + + fprintf (stderr, "%s: ", programname); + vfprintf (stderr, _(cmsgid), ap); + va_end (ap); + fprintf (stderr, "\n"); + delete_temp_files (); + exit (pass_exit_codes ? ICE_EXIT_CODE : 1); +} + +void fatal (const char *cmsgid, ...) { va_list ap; @@ -6860,7 +7027,7 @@ next_member: p++; SKIP_WHITE (); - if (*p == '.') + if (*p == '.' || *p == ',') suffix = true, p++; atom = p; @@ -6986,8 +7153,7 @@ used_arg (const char *p, int len) xmalloc from calling fatal, and prevents us from re-executing this block of code. */ mswitches - = xmalloc (sizeof (struct mswitchstr) - * (n_mdswitches + (n_switches ? n_switches : 1))); + = XNEWVEC (struct mswitchstr, n_mdswitches + (n_switches ? n_switches : 1)); for (i = 0; i < n_switches; i++) if (switches[i].live_cond != SWITCH_IGNORE) { @@ -7114,7 +7280,7 @@ set_multilib_dir (void) { int i = 0; - mdswitches = xmalloc (sizeof (struct mdswitchstr) * n_mdswitches); + mdswitches = XNEWVEC (struct mdswitchstr, n_mdswitches); for (start = multilib_defaults; *start != '\0'; start = end + 1) { while (*start == ' ' || *start == '\t') @@ -7276,7 +7442,7 @@ set_multilib_dir (void) if (this_path_len != 1 || this_path[0] != '.') { - char *new_multilib_dir = xmalloc (this_path_len + 1); + char *new_multilib_dir = XNEWVEC (char, this_path_len + 1); char *q; strncpy (new_multilib_dir, this_path, this_path_len); @@ -7297,7 +7463,7 @@ set_multilib_dir (void) q++; if (q < end) { - char *new_multilib_os_dir = xmalloc (end - q); + char *new_multilib_os_dir = XNEWVEC (char, end - q); memcpy (new_multilib_os_dir, q + 1, end - q - 1); new_multilib_os_dir[end - q - 1] = '\0'; multilib_os_dir = new_multilib_os_dir; @@ -7578,6 +7744,27 @@ print_multilib_info (void) } } +/* getenv built-in spec function. + + Returns the value of the environment variable given by its first + argument, concatenated with the second argument. If the + environment variable is not defined, a fatal error is issued. */ + +static const char * +getenv_spec_function (int argc, const char **argv) +{ + char *value; + + if (argc != 2) + return NULL; + + value = getenv (argv[0]); + if (!value) + fatal ("environment variable \"%s\" not defined", argv[0]); + + return concat (value, argv[1], NULL); +} + /* if-exists built-in spec function. Checks to see if the file specified by the absolute pathname in @@ -7745,10 +7932,42 @@ version_compare_spec_function (int argc, const char **argv) break; default: - fatal ("unknown operator %qs in %%:version-compare", argv[0]); + fatal ("unknown operator '%s' in %%:version-compare", argv[0]); } if (! result) return NULL; return argv[nargs + 2]; } + +/* %:include builtin spec function. This differs from %include in that it + can be nested inside a spec, and thus be conditionalized. It takes + one argument, the filename, and looks for it in the startfile path. + The result is always NULL, i.e. an empty expansion. */ + +static const char * +include_spec_function (int argc, const char **argv) +{ + char *file; + + if (argc != 1) + abort (); + + file = find_a_file (&startfile_prefixes, argv[0], R_OK, 0); + read_specs (file ? file : argv[0], FALSE); + + return NULL; +} + +/* %:print-asm-header spec function. Print a banner to say that the + following output is from the assembler. */ + +static const char * +print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED, + const char **argv ATTRIBUTE_UNUSED) +{ + printf (_("Assembler options\n=================\n\n")); + printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n")); + fflush (stdout); + return NULL; +}