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buildscripts/dkarm-eabi/patches/gcc-4.9.2.patch
Dave Murphy 00dfc2dbbb use gcc 4.9.2
2014-11-20 16:31:07 +00:00

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diff -NBaur gcc-4.9.2/gcc/config/arm/t-arm-elf gcc-4.9.2-arm/gcc/config/arm/t-arm-elf
--- gcc-4.9.2/gcc/config/arm/t-arm-elf 2014-01-02 22:23:26.000000000 +0000
+++ gcc-4.9.2-arm/gcc/config/arm/t-arm-elf 2014-11-20 10:47:59.724883000 +0000
@@ -38,8 +38,8 @@
# Not quite true. We can support hard-vfp calling in Thumb2, but how do we
# express that here? Also, we really need architecture v5e or later
# (mcrr etc).
-MULTILIB_OPTIONS += mfloat-abi=hard
-MULTILIB_DIRNAMES += fpu
+#MULTILIB_OPTIONS += mfloat-abi=hard mcpu=mpcore
+#MULTILIB_DIRNAMES += mpcore
MULTILIB_EXCEPTIONS += *mthumb/*mfloat-abi=hard*
#MULTILIB_EXCEPTIONS += *mcpu=fa526/*mfloat-abi=hard*
#MULTILIB_EXCEPTIONS += *mcpu=fa626/*mfloat-abi=hard*
diff -NBaur gcc-4.9.2/gcc/config/arm/t-arm-elf~ gcc-4.9.2-arm/gcc/config/arm/t-arm-elf~
--- gcc-4.9.2/gcc/config/arm/t-arm-elf~ 1970-01-01 01:00:00.000000000 +0100
+++ gcc-4.9.2-arm/gcc/config/arm/t-arm-elf~ 2014-11-20 10:47:00.204883000 +0000
@@ -0,0 +1,90 @@
+# Copyright (C) 1998-2014 Free Software Foundation, Inc.
+#
+# This file is part of GCC.
+#
+# GCC 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 3, or (at your option)
+# any later version.
+#
+# GCC 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 GCC; see the file COPYING3. If not see
+# <http://www.gnu.org/licenses/>.
+
+MULTILIB_OPTIONS = marm/mthumb
+MULTILIB_DIRNAMES = arm thumb
+MULTILIB_EXCEPTIONS =
+MULTILIB_MATCHES =
+
+#MULTILIB_OPTIONS += mcpu=fa526/mcpu=fa626/mcpu=fa606te/mcpu=fa626te/mcpu=fmp626/mcpu=fa726te
+#MULTILIB_DIRNAMES += fa526 fa626 fa606te fa626te fmp626 fa726te
+#MULTILIB_EXCEPTIONS += *mthumb*/*mcpu=fa526 *mthumb*/*mcpu=fa626
+
+#MULTILIB_OPTIONS += march=armv7
+#MULTILIB_DIRNAMES += thumb2
+#MULTILIB_EXCEPTIONS += march=armv7* marm/*march=armv7*
+#MULTILIB_MATCHES += march?armv7=march?armv7-a
+#MULTILIB_MATCHES += march?armv7=march?armv7-r
+#MULTILIB_MATCHES += march?armv7=march?armv7-m
+#MULTILIB_MATCHES += march?armv7=mcpu?cortex-a8
+#MULTILIB_MATCHES += march?armv7=mcpu?cortex-r4
+#MULTILIB_MATCHES += march?armv7=mcpu?cortex-m3
+
+# Not quite true. We can support hard-vfp calling in Thumb2, but how do we
+# express that here? Also, we really need architecture v5e or later
+# (mcrr etc).
+MULTILIB_OPTIONS += mfloat-abi=hard mcpu=mpcore
+MULTILIB_DIRNAMES += mpcore
+MULTILIB_EXCEPTIONS += *mthumb/*mfloat-abi=hard*
+#MULTILIB_EXCEPTIONS += *mcpu=fa526/*mfloat-abi=hard*
+#MULTILIB_EXCEPTIONS += *mcpu=fa626/*mfloat-abi=hard*
+
+# MULTILIB_OPTIONS += mcpu=ep9312
+# MULTILIB_DIRNAMES += ep9312
+# MULTILIB_EXCEPTIONS += *mthumb/*mcpu=ep9312*
+#
+# MULTILIB_OPTIONS += mlittle-endian/mbig-endian
+# MULTILIB_DIRNAMES += le be
+# MULTILIB_MATCHES += mbig-endian=mbe mlittle-endian=mle
+#
+# MULTILIB_OPTIONS += mfloat-abi=hard/mfloat-abi=soft
+# MULTILIB_DIRNAMES += fpu soft
+# MULTILIB_EXCEPTIONS += *mthumb/*mfloat-abi=hard*
+#
+# MULTILIB_OPTIONS += mno-thumb-interwork/mthumb-interwork
+# MULTILIB_DIRNAMES += normal interwork
+#
+# MULTILIB_OPTIONS += fno-leading-underscore/fleading-underscore
+# MULTILIB_DIRNAMES += elf under
+#
+# MULTILIB_OPTIONS += mcpu=arm7
+# MULTILIB_DIRNAMES += nofmult
+# MULTILIB_EXCEPTIONS += *mthumb*/*mcpu=arm7*
+# # Note: the multilib_exceptions matches both -mthumb and
+# # -mthumb-interwork
+# #
+# # We have to match all the arm cpu variants which do not have the
+# # multiply instruction and treat them as if the user had specified
+# # -mcpu=arm7. Note that in the following the ? is interpreted as
+# # an = for the purposes of matching command line options.
+# # FIXME: There ought to be a better way to do this.
+# MULTILIB_MATCHES += mcpu?arm7=mcpu?arm7d
+# MULTILIB_MATCHES += mcpu?arm7=mcpu?arm7di
+# MULTILIB_MATCHES += mcpu?arm7=mcpu?arm70
+# MULTILIB_MATCHES += mcpu?arm7=mcpu?arm700
+# MULTILIB_MATCHES += mcpu?arm7=mcpu?arm700i
+# MULTILIB_MATCHES += mcpu?arm7=mcpu?arm710
+# MULTILIB_MATCHES += mcpu?arm7=mcpu?arm710c
+# MULTILIB_MATCHES += mcpu?arm7=mcpu?arm7100
+# MULTILIB_MATCHES += mcpu?arm7=mcpu?arm7500
+# MULTILIB_MATCHES += mcpu?arm7=mcpu?arm7500fe
+# MULTILIB_MATCHES += mcpu?arm7=mcpu?arm6
+# MULTILIB_MATCHES += mcpu?arm7=mcpu?arm60
+# MULTILIB_MATCHES += mcpu?arm7=mcpu?arm600
+# MULTILIB_MATCHES += mcpu?arm7=mcpu?arm610
+# MULTILIB_MATCHES += mcpu?arm7=mcpu?arm620
diff -NBaur gcc-4.9.2/gcc/config/arm/unknown-elf.h gcc-4.9.2-arm/gcc/config/arm/unknown-elf.h
--- gcc-4.9.2/gcc/config/arm/unknown-elf.h 2014-01-02 22:23:26.000000000 +0000
+++ gcc-4.9.2-arm/gcc/config/arm/unknown-elf.h 2014-11-20 10:47:00.204883000 +0000
@@ -93,4 +93,4 @@
udivmoddi4, which will depend on the exception unwind routines,
which will depend on abort, which is defined in libc. */
#undef LINK_GCC_C_SEQUENCE_SPEC
-#define LINK_GCC_C_SEQUENCE_SPEC "--start-group %G %L --end-group"
+#define LINK_GCC_C_SEQUENCE_SPEC "--start-group %G %L %(libgloss) --end-group"
diff -NBaur gcc-4.9.2/gcc/gcc.c gcc-4.9.2-arm/gcc/gcc.c
--- gcc-4.9.2/gcc/gcc.c 2014-10-22 22:42:48.000000000 +0100
+++ gcc-4.9.2-arm/gcc/gcc.c 2014-11-20 10:47:00.208883000 +0000
@@ -616,6 +616,11 @@
#endif
#endif
+#ifndef LIBGLOSS_SPEC
+# define LIBGLOSS_SPEC "-lsysbase"
+#endif
+
+
/* config.h can define STARTFILE_SPEC to override the default crt0 files. */
#ifndef STARTFILE_SPEC
#define STARTFILE_SPEC \
@@ -813,6 +818,7 @@
static const char *lib_spec = LIB_SPEC;
static const char *link_gomp_spec = "";
static const char *libgcc_spec = LIBGCC_SPEC;
+static const char *libgloss_spec = LIBGLOSS_SPEC;
static const char *endfile_spec = ENDFILE_SPEC;
static const char *startfile_spec = STARTFILE_SPEC;
static const char *linker_name_spec = LINKER_NAME;
@@ -1303,6 +1309,7 @@
INIT_STATIC_SPEC ("lib", &lib_spec),
INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec),
INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
+ INIT_STATIC_SPEC ("libgloss", &libgloss_spec),
INIT_STATIC_SPEC ("startfile", &startfile_spec),
INIT_STATIC_SPEC ("cross_compile", &cross_compile),
INIT_STATIC_SPEC ("version", &compiler_version),
diff -NBaur gcc-4.9.2/gcc/gcc.c.orig gcc-4.9.2-arm/gcc/gcc.c.orig
--- gcc-4.9.2/gcc/gcc.c.orig 1970-01-01 01:00:00.000000000 +0100
+++ gcc-4.9.2-arm/gcc/gcc.c.orig 2014-10-22 22:42:48.000000000 +0100
@@ -0,0 +1,8719 @@
+/* Compiler driver program that can handle many languages.
+ Copyright (C) 1987-2014 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC 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 3, or (at your option) any later
+version.
+
+GCC 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 GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+/* 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 "coretypes.h"
+#include "multilib.h" /* before tm.h */
+#include "tm.h"
+#include "xregex.h"
+#include "obstack.h"
+#include "intl.h"
+#include "prefix.h"
+#include "gcc.h"
+#include "diagnostic.h"
+#include "flags.h"
+#include "opts.h"
+#include "params.h"
+#include "vec.h"
+#include "filenames.h"
+
+/* By default there is no special suffix for target executables. */
+/* FIXME: when autoconf is fixed, remove the host check - dj */
+#if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
+#define HAVE_TARGET_EXECUTABLE_SUFFIX
+#endif
+
+/* By default there is no special suffix for host executables. */
+#ifdef HOST_EXECUTABLE_SUFFIX
+#define HAVE_HOST_EXECUTABLE_SUFFIX
+#else
+#define HOST_EXECUTABLE_SUFFIX ""
+#endif
+
+/* By default, the suffix for target object files is ".o". */
+#ifdef TARGET_OBJECT_SUFFIX
+#define HAVE_TARGET_OBJECT_SUFFIX
+#else
+#define TARGET_OBJECT_SUFFIX ".o"
+#endif
+
+static const char dir_separator_str[] = { DIR_SEPARATOR, 0 };
+
+/* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
+#ifndef LIBRARY_PATH_ENV
+#define LIBRARY_PATH_ENV "LIBRARY_PATH"
+#endif
+
+/* If a stage of compilation returns an exit status >= 1,
+ compilation of that file ceases. */
+
+#define MIN_FATAL_STATUS 1
+
+/* 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;
+
+/* Definition of string containing the arguments given to configure. */
+#include "configargs.h"
+
+/* Flag saying to print the command line options understood by gcc and its
+ sub-processes. */
+
+static int print_help_list;
+
+/* Flag saying to print the version of gcc and its sub-processes. */
+
+static int print_version;
+
+/* Flag indicating whether we should ONLY print the command and
+ arguments (like verbose_flag) without executing the command.
+ Displayed arguments are quoted so that the generated command
+ line is suitable for execution. This is intended for use in
+ shell scripts to capture the driver-generated command line. */
+static int verbose_only_flag;
+
+/* Flag indicating how to print command line options of sub-processes. */
+
+static int print_subprocess_help;
+
+/* Linker suffix passed to -fuse-ld=... */
+static const char *use_ld;
+
+/* Whether we should report subprocess execution times to a file. */
+
+FILE *report_times_to_file = NULL;
+
+/* Nonzero means place this string before uses of /, so that include
+ and library files can be found in an alternate location. */
+
+#ifdef TARGET_SYSTEM_ROOT
+static const char *target_system_root = TARGET_SYSTEM_ROOT;
+#else
+static const char *target_system_root = 0;
+#endif
+
+/* Nonzero means pass the updated target_system_root to the compiler. */
+
+static int target_system_root_changed;
+
+/* Nonzero means append this string to target_system_root. */
+
+static const char *target_sysroot_suffix = 0;
+
+/* Nonzero means append this string to target_system_root for headers. */
+
+static const char *target_sysroot_hdrs_suffix = 0;
+
+/* Nonzero means write "temp" files in source directory
+ and use the source file's name in them, and don't delete them. */
+
+static enum save_temps {
+ SAVE_TEMPS_NONE, /* no -save-temps */
+ SAVE_TEMPS_CWD, /* -save-temps in current directory */
+ SAVE_TEMPS_OBJ /* -save-temps in object directory */
+} save_temps_flag;
+
+/* Output file to use to get the object directory for -save-temps=obj */
+static char *save_temps_prefix = 0;
+static size_t save_temps_length = 0;
+
+/* The compiler version. */
+
+static const char *compiler_version;
+
+/* The target version. */
+
+static const char *const spec_version = DEFAULT_TARGET_VERSION;
+
+/* The target machine. */
+
+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_DIRECTORY_STRUCTURE
+static const char *cross_compile = "1";
+#else
+static const char *cross_compile = "0";
+#endif
+
+/* Greatest exit code of sub-processes that has been encountered up to
+ now. */
+static int greatest_status = 1;
+
+/* 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;
+
+/* Forward declaration for prototypes. */
+struct path_prefix;
+struct prefix_list;
+
+static void init_spec (void);
+static void store_arg (const char *, int, int);
+static void insert_wrapper (const char *);
+static char *load_specs (const char *);
+static void read_specs (const char *, bool, bool);
+static void set_spec (const char *, const char *, bool);
+static struct compiler *lookup_compiler (const char *, size_t, const char *);
+static char *build_search_list (const struct path_prefix *, const char *,
+ bool, bool);
+static void xputenv (const char *);
+static void putenv_from_prefixes (const struct path_prefix *, const char *,
+ bool);
+static int access_check (const char *, 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 *,
+ const char *, int, int, int);
+static char *skip_whitespace (char *);
+static void delete_if_ordinary (const char *);
+static void delete_temp_files (void);
+static void delete_failure_queue (void);
+static void clear_failure_queue (void);
+static int check_live_switch (int, int);
+static const char *handle_braces (const char *);
+static inline bool input_suffix_matches (const char *, const char *);
+static inline bool switch_matches (const char *, const char *, int);
+static inline void mark_matching_switches (const char *, const char *, int);
+static inline void process_marked_switches (void);
+static const char *process_brace_body (const char *, const char *, const char *, int, int);
+static const struct spec_function *lookup_spec_function (const char *);
+static const char *eval_spec_function (const char *, const char *);
+static const char *handle_spec_function (const char *, bool *);
+static char *save_string (const char *, int);
+static void set_collect_gcc_options (void);
+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 *, bool);
+static const char *validate_switches (const char *, bool);
+static void validate_all_switches (void);
+static inline void validate_switches_from_spec (const char *, bool);
+static void give_switch (int, int);
+static int used_arg (const char *, int);
+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 display_help (void);
+static void add_preprocessor_option (const char *, int);
+static void add_assembler_option (const char *, int);
+static void add_linker_option (const char *, int);
+static void process_command (unsigned int, struct cl_decoded_option *);
+static int execute (void);
+static void alloc_args (void);
+static void clear_args (void);
+static void fatal_signal (int);
+#if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
+static void init_gcc_specs (struct obstack *, const char *, const char *,
+ const char *);
+#endif
+#if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
+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 *sanitize_spec_function (int, const char **);
+static const char *replace_outfile_spec_function (int, const char **);
+static const char *remove_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 *find_file_spec_function (int, const char **);
+static const char *find_plugindir_spec_function (int, const char **);
+static const char *print_asm_header_spec_function (int, const char **);
+static const char *compare_debug_dump_opt_spec_function (int, const char **);
+static const char *compare_debug_self_opt_spec_function (int, const char **);
+static const char *compare_debug_auxbase_opt_spec_function (int, const char **);
+static const char *pass_through_libs_spec_func (int, const char **);
+static const char *replace_extension_spec_func (int, const char **);
+static char *convert_white_space (char *);
+
+/* The Specs Language
+
+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 unless -save-temps was specified
+ to put temporaries in a different location.
+ %B same as %b, but include the file suffix (text after the last period).
+ %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 "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
+ 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.
+ %|SUFFIX
+ like %g, but if -pipe is in effect, expands simply to "-".
+ %mSUFFIX
+ like %g, but if -pipe is in effect, expands to nothing. (We have both
+ %| and %m to accommodate differences between system assemblers; see
+ the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
+ %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.
+ %jSUFFIX
+ substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
+ writable, and if save-temps is off; otherwise, substitute the name
+ of a temporary file, just like %u. This temporary file is not
+ meant for communication between processes, but rather as a junk
+ disposal mechanism.
+ %.SUFFIX
+ substitutes .SUFFIX for the suffixes of a matched switch's args when
+ it is subsequently output with %*. SUFFIX is terminated by the next
+ space or %.
+ %d marks the argument containing or following the %d as a
+ temporary file name, so that that file will be deleted if GCC 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.
+ %V indicates that this compilation produces no "output file".
+ %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
+ (with or without a suffix argument) 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'.
+ %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
+ (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.
+ %eSTR Print STR as an error message. STR is terminated by a newline.
+ Use this when inconsistent options are detected.
+ %nSTR Print STR as a notice. STR is terminated by a newline.
+ %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.
+ %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.
+ %M Output multilib_os_dir.
+ %G process LIBGCC_SPEC as a spec.
+ %R Output the concatenation of target_system_root and
+ target_sysroot_suffix.
+ %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 CPP_SPEC as a spec.
+ %1 process CC1_SPEC as a spec.
+ %2 process CC1PLUS_SPEC as a spec.
+ %* substitute the variable part of a matched option. (See below.)
+ Note that each comma in the substituted string is replaced by
+ a single space. A space is appended after the last substition
+ unless there is more text in current sequence.
+ %<S remove all occurrences of -S from the command line.
+ Note - this command is position dependent. % commands in the
+ spec string before this one will see -S, % commands in the
+ spec string after this one will not.
+ %>S Similar to "%<S", but keep it in the GCC command line.
+ %<S* remove all occurrences of all switches beginning with -S from the
+ command line.
+ %:function(args)
+ Call the named function FUNCTION, passing it ARGS. ARGS is
+ first processed as a nested spec string, then split into an
+ argument vector in the usual fashion. The function returns
+ a string which is processed as if it had appeared literally
+ as part of the current spec.
+ %{S} substitutes the -S switch, if that switch was given to GCC.
+ If that switch was not specified, this substitutes nothing.
+ Here S is a metasyntactic variable.
+ %{S*} substitutes all the switches specified to GCC whose names start
+ with -S. This is used for -o, -I, etc; switches that take
+ arguments. GCC 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*&T*} likewise, but preserve order of S and T options (the order
+ of S and T in the spec is not significant). Can be any number
+ of ampersand-separated variables; for each the wild card is
+ optional. Useful for CPP as %{D*&U*&A*}.
+
+ %{S:X} substitutes X, if the -S switch was given to GCC.
+ %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
+ %{S*:X} substitutes X if one or more switches whose names start
+ with -S was given to GCC. Normally X is substituted only
+ once, no matter how many such switches appeared. However,
+ if %* appears somewhere in X, then X will be substituted
+ once for each matching switch, with the %* replaced by the
+ part of that switch that matched the '*'. A space will be
+ appended after the last substition unless there is more
+ text in current sequence.
+ %{.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 GCC. This may be
+ 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.
+ %{%:function(args):X}
+ Call function named FUNCTION with args ARGS. If the function
+ returns non-NULL, then X is substituted, if it returns
+ NULL, it isn't substituted.
+ %{S:X; if S was given to GCC, substitutes X;
+ T:Y; else if T was given to GCC, substitutes Y;
+ :D} else substitutes D. There can be as many clauses as you need.
+ This may be combined with '.', '!', ',', '|', and '*' as above.
+
+ %(Spec) processes a specification defined in a specs file as *Spec:
+
+The conditional text X in a %{S:X} or similar construct may contain
+other nested % constructs or spaces, or even newlines. They are
+processed as usual, as described above. Trailing white space in X is
+ignored. White space may also appear anywhere on the left side of the
+colon in these constructs, except between . or * and the corresponding
+word.
+
+The -O, -f, -g, -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 GCC 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. GCC 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.
+
+GCC 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, %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 \
+ "%{gsplit-dwarf: \n\
+ objcopy --extract-dwo \
+ %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
+ %{c:%{o*:%:replace-extension(%{o*:%*} .dwo)}%{!o*:%b.dwo}}%{!c:%b.dwo} \n\
+ objcopy --strip-dwo \
+ %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
+ }"
+#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
+
+/* When using -fsplit-stack we need to wrap pthread_create, in order
+ to initialize the stack guard. We always use wrapping, rather than
+ shared library ordering, and we keep the wrapper function in
+ libgcc. This is not yet a real spec, though it could become one;
+ it is currently just stuffed into LINK_SPEC. FIXME: This wrapping
+ only works with GNU ld and gold. */
+#define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
+
+#ifndef LIBASAN_SPEC
+#define STATIC_LIBASAN_LIBS \
+ " %{static-libasan:%:include(libsanitizer.spec)%(link_libasan)}"
+#ifdef LIBASAN_EARLY_SPEC
+#define LIBASAN_SPEC STATIC_LIBASAN_LIBS
+#elif defined(HAVE_LD_STATIC_DYNAMIC)
+#define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \
+ "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \
+ STATIC_LIBASAN_LIBS
+#else
+#define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS
+#endif
+#endif
+
+#ifndef LIBASAN_EARLY_SPEC
+#define LIBASAN_EARLY_SPEC ""
+#endif
+
+#ifndef LIBTSAN_SPEC
+#define STATIC_LIBTSAN_LIBS \
+ " %{static-libtsan:%:include(libsanitizer.spec)%(link_libtsan)}"
+#ifdef LIBTSAN_EARLY_SPEC
+#define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
+#elif defined(HAVE_LD_STATIC_DYNAMIC)
+#define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \
+ "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
+ STATIC_LIBTSAN_LIBS
+#else
+#define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
+#endif
+#endif
+
+#ifndef LIBTSAN_EARLY_SPEC
+#define LIBTSAN_EARLY_SPEC ""
+#endif
+
+#ifndef LIBLSAN_SPEC
+#define STATIC_LIBLSAN_LIBS \
+ " %{static-liblsan:%:include(libsanitizer.spec)%(link_liblsan)}"
+#ifdef LIBLSAN_EARLY_SPEC
+#define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS
+#elif defined(HAVE_LD_STATIC_DYNAMIC)
+#define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION \
+ "} -llsan %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
+ STATIC_LIBLSAN_LIBS
+#else
+#define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS
+#endif
+#endif
+
+#ifndef LIBLSAN_EARLY_SPEC
+#define LIBLSAN_EARLY_SPEC ""
+#endif
+
+#ifndef LIBUBSAN_SPEC
+#define STATIC_LIBUBSAN_LIBS \
+ " %{static-libubsan:%:include(libsanitizer.spec)%(link_libubsan)}"
+#ifdef HAVE_LD_STATIC_DYNAMIC
+#define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \
+ "} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
+ STATIC_LIBUBSAN_LIBS
+#else
+#define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS
+#endif
+#endif
+
+/* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
+ included. */
+#ifndef LIBGCC_SPEC
+#if defined(REAL_LIBGCC_SPEC)
+#define LIBGCC_SPEC REAL_LIBGCC_SPEC
+#elif 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 ENDFILE_SPEC to override the default crtn files. */
+#ifndef ENDFILE_SPEC
+#define ENDFILE_SPEC ""
+#endif
+
+#ifndef LINKER_NAME
+#define LINKER_NAME "collect2"
+#endif
+
+#ifdef HAVE_AS_DEBUG_PREFIX_MAP
+#define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
+#else
+#define ASM_MAP ""
+#endif
+
+/* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
+ to the assembler. */
+#ifndef ASM_DEBUG_SPEC
+# if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
+ && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
+# define ASM_DEBUG_SPEC \
+ (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
+ ? "%{!g0:%{gdwarf*:--gdwarf2}%{!gdwarf*:%{g*:--gstabs}}}" ASM_MAP \
+ : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
+# else
+# if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
+# define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP
+# endif
+# if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
+# define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP
+# endif
+# endif
+#endif
+#ifndef ASM_DEBUG_SPEC
+# define ASM_DEBUG_SPEC ""
+#endif
+
+/* Here is the spec for running the linker, after compiling all files. */
+
+/* This is overridable by the target in case they need to specify the
+ -lgcc and -lc order specially, yet not require them to override all
+ of LINK_COMMAND_SPEC. */
+#ifndef LINK_GCC_C_SEQUENCE_SPEC
+#define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
+#endif
+
+#ifndef LINK_SSP_SPEC
+#ifdef TARGET_LIBC_PROVIDES_SSP
+#define LINK_SSP_SPEC "%{fstack-protector:}"
+#else
+#define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-strong|fstack-protector-all:-lssp_nonshared -lssp}"
+#endif
+#endif
+
+#ifndef LINK_PIE_SPEC
+#ifdef HAVE_LD_PIE
+#define LINK_PIE_SPEC "%{pie:-pie} "
+#else
+#define LINK_PIE_SPEC "%{pie:} "
+#endif
+#endif
+
+#ifndef LINK_BUILDID_SPEC
+# if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
+# define LINK_BUILDID_SPEC "%{!r:--build-id} "
+# endif
+#endif
+
+/* Conditional to test whether the LTO plugin is used or not.
+ FIXME: For slim LTO we will need to enable plugin unconditionally. This
+ still cause problems with PLUGIN_LD != LD and when plugin is built but
+ not useable. For GCC 4.6 we don't support slim LTO and thus we can enable
+ plugin only when LTO is enabled. We still honor explicit
+ -fuse-linker-plugin if the linker used understands -plugin. */
+
+/* The linker has some plugin support. */
+#if HAVE_LTO_PLUGIN > 0
+/* The linker used has full plugin support, use LTO plugin by default. */
+#if HAVE_LTO_PLUGIN == 2
+#define PLUGIN_COND "!fno-use-linker-plugin:%{!fno-lto"
+#define PLUGIN_COND_CLOSE "}"
+#else
+/* The linker used has limited plugin support, use LTO plugin with explicit
+ -fuse-linker-plugin. */
+#define PLUGIN_COND "fuse-linker-plugin"
+#define PLUGIN_COND_CLOSE ""
+#endif
+#define LINK_PLUGIN_SPEC \
+ "%{"PLUGIN_COND": \
+ -plugin %(linker_plugin_file) \
+ -plugin-opt=%(lto_wrapper) \
+ -plugin-opt=-fresolution=%u.res \
+ %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \
+ }"PLUGIN_COND_CLOSE
+#else
+/* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */
+#define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\
+ %e-fuse-linker-plugin is not supported in this configuration}"
+#endif
+
+/* Linker command line options for -fsanitize= early on the command line. */
+#ifndef SANITIZER_EARLY_SPEC
+#define SANITIZER_EARLY_SPEC "\
+%{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_EARLY_SPEC "} \
+ %{%:sanitize(thread):" LIBTSAN_EARLY_SPEC "} \
+ %{%:sanitize(leak):" LIBLSAN_EARLY_SPEC "}}}"
+#endif
+
+/* Linker command line options for -fsanitize= late on the command line. */
+#ifndef SANITIZER_SPEC
+#define SANITIZER_SPEC "\
+%{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_SPEC "\
+ %{static:%ecannot specify -static with -fsanitize=address}}\
+ %{%:sanitize(thread):" LIBTSAN_SPEC "\
+ %{!pie:%{!shared:%e-fsanitize=thread linking must be done with -pie or -shared}}}\
+ %{%:sanitize(undefined):" LIBUBSAN_SPEC "}\
+ %{%:sanitize(leak):" LIBLSAN_SPEC "}}}"
+#endif
+
+/* This is the spec to use, once the code for creating the vtable
+ verification runtime library, libvtv.so, has been created. Currently
+ the vtable verification runtime functions are in libstdc++, so we use
+ the spec just below this one. */
+#ifndef VTABLE_VERIFICATION_SPEC
+#define VTABLE_VERIFICATION_SPEC "\
+%{!nostdlib:%{fvtable-verify=std: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}\
+ %{fvtable-verify=preinit: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}}"
+#endif
+
+/* -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. */
+/* We pass any -flto flags on to the linker, which is expected
+ to understand them. In practice, this means it had better be collect2. */
+/* %{e*} includes -export-dynamic; see comment in common.opt. */
+#ifndef LINK_COMMAND_SPEC
+#define LINK_COMMAND_SPEC "\
+%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
+ %(linker) " \
+ LINK_PLUGIN_SPEC \
+ "%{flto|flto=*:%<fcompare-debug*} \
+ %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \
+ "%{fuse-ld=*:-fuse-ld=%*}\
+ %X %{o*} %{e*} %{N} %{n} %{r}\
+ %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}} " VTABLE_VERIFICATION_SPEC " \
+ %{static:} %{L*} %(mfwrap) %(link_libgcc) " SANITIZER_EARLY_SPEC " %o\
+ %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}\
+ %{fcilkplus:%:include(libcilkrts.spec)%(link_cilkrts)}\
+ %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
+ %(mflib) " STACK_SPLIT_SPEC "\
+ %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \
+ %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
+ %{!nostdlib:%{!nostartfiles:%E}} %{T*} }}}}}}"
+#endif
+
+#ifndef LINK_LIBGCC_SPEC
+/* Generate -L options for startfile prefix list. */
+# define LINK_LIBGCC_SPEC "%D"
+#endif
+
+#ifndef STARTFILE_PREFIX_SPEC
+# define STARTFILE_PREFIX_SPEC ""
+#endif
+
+#ifndef SYSROOT_SPEC
+# define SYSROOT_SPEC "--sysroot=%R"
+#endif
+
+#ifndef SYSROOT_SUFFIX_SPEC
+# define SYSROOT_SUFFIX_SPEC ""
+#endif
+
+#ifndef SYSROOT_HEADERS_SUFFIX_SPEC
+# define SYSROOT_HEADERS_SUFFIX_SPEC ""
+#endif
+
+static const char *asm_debug = ASM_DEBUG_SPEC;
+static const char *cpp_spec = CPP_SPEC;
+static const char *cc1_spec = CC1_SPEC;
+static const char *cc1plus_spec = CC1PLUS_SPEC;
+static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC;
+static const char *link_ssp_spec = LINK_SSP_SPEC;
+static const char *asm_spec = ASM_SPEC;
+static const char *asm_final_spec = ASM_FINAL_SPEC;
+static const char *link_spec = LINK_SPEC;
+static const char *lib_spec = LIB_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;
+static const char *linker_name_spec = LINKER_NAME;
+static const char *linker_plugin_file_spec = "";
+static const char *lto_wrapper_spec = "";
+static const char *lto_gcc_spec = "";
+static const char *link_command_spec = LINK_COMMAND_SPEC;
+static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
+static const char *startfile_prefix_spec = STARTFILE_PREFIX_SPEC;
+static const char *sysroot_spec = SYSROOT_SPEC;
+static const char *sysroot_suffix_spec = SYSROOT_SUFFIX_SPEC;
+static const char *sysroot_hdrs_suffix_spec = SYSROOT_HEADERS_SUFFIX_SPEC;
+static const char *self_spec = "";
+
+/* Standard options to cpp, cc1, and as, to reduce duplication in specs.
+ There should be no need to override these in target dependent files,
+ but we need to copy them to the specs file so that newer versions
+ of the GCC driver can correctly drive older tool chains with the
+ appropriate -B options. */
+
+/* When cpplib handles traditional preprocessing, get rid of this, and
+ call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
+ that we default the front end language better. */
+static const char *trad_capable_cpp =
+"cc1 -E %{traditional|traditional-cpp:-traditional-cpp}";
+
+/* We don't wrap .d files in %W{} since a missing .d file, and
+ therefore no dependency entry, confuses make into thinking a .o
+ file that happens to exist is up-to-date. */
+static const char *cpp_unique_options =
+"%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
+ %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
+ %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
+ %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
+ %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
+ %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
+ %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
+ %{H} %C %{D*&U*&A*} %{i*} %Z %i\
+ %{E|M|MM:%W{o*}}";
+
+/* This contains cpp options which are common with cc1_options and are passed
+ only when preprocessing only to avoid duplication. We pass the cc1 spec
+ options to the preprocessor so that it the cc1 spec may manipulate
+ options used to set target flags. Those special target flags settings may
+ in turn cause preprocessor symbols to be defined specially. */
+static const char *cpp_options =
+"%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
+ %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
+ %{undef} %{save-temps*:-fpch-preprocess}";
+
+/* This contains cpp options which are not passed when the preprocessor
+ output will be used by another program. */
+static const char *cpp_debug_options = "%{d*}";
+
+/* NB: This is shared amongst all front-ends, except for Ada. */
+static const char *cc1_options =
+"%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
+ %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
+ %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\
+ %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
+ %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
+ %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
+ %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
+ %{Qn:-fno-ident} %{Qy:} %{-help:--help}\
+ %{-target-help:--target-help}\
+ %{-version:--version}\
+ %{-help=*:--help=%*}\
+ %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
+ %{fsyntax-only:-o %j} %{-param*}\
+ %{coverage:-fprofile-arcs -ftest-coverage}";
+
+static const char *asm_options =
+"%{-target-help:%:print-asm-header()} "
+#if HAVE_GNU_AS
+/* If GNU AS is used, then convert -w (no warnings), -I, and -v
+ to the assembler equivalents. */
+"%{v} %{w:-W} %{I*} "
+#endif
+"%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
+"%{!fwpa*:\
+ %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
+ %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
+ }";
+#else
+"%{!fwpa*:\
+ %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
+ %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
+ }";
+#endif
+
+/* 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 const char *multilib_select;
+static const char *multilib_matches;
+static const char *multilib_defaults;
+static const char *multilib_exclusions;
+static const char *multilib_reuse;
+
+/* Check whether a particular argument is a default argument. */
+
+#ifndef MULTILIB_DEFAULTS
+#define MULTILIB_DEFAULTS { "" }
+#endif
+
+static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
+
+#ifndef DRIVER_SELF_SPECS
+#define DRIVER_SELF_SPECS ""
+#endif
+
+/* Linking to libgomp implies pthreads. This is particularly important
+ for targets that use different start files and suchlike. */
+#ifndef GOMP_SELF_SPECS
+#define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
+#endif
+
+/* Likewise for -fgnu-tm. */
+#ifndef GTM_SELF_SPECS
+#define GTM_SELF_SPECS "%{fgnu-tm: -pthread}"
+#endif
+
+/* Likewise for -fcilkplus. */
+#ifndef CILK_SELF_SPECS
+#define CILK_SELF_SPECS "%{fcilkplus: -pthread}"
+#endif
+
+static const char *const driver_self_specs[] = {
+ "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
+ DRIVER_SELF_SPECS, CONFIGURE_SPECS, GOMP_SELF_SPECS, GTM_SELF_SPECS,
+ CILK_SELF_SPECS
+};
+
+#ifndef OPTION_DEFAULT_SPECS
+#define OPTION_DEFAULT_SPECS { "", "" }
+#endif
+
+struct default_spec
+{
+ const char *name;
+ const char *spec;
+};
+
+static const struct default_spec
+ option_default_specs[] = { OPTION_DEFAULT_SPECS };
+
+struct user_specs
+{
+ struct user_specs *next;
+ const char *filename;
+};
+
+static struct user_specs *user_specs_head, *user_specs_tail;
+
+
+/* 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; /* To use this compiler, run this spec. */
+
+ const char *cpp_spec; /* If non-NULL, substitute this spec
+ for `%C', rather than the usual
+ cpp_spec. */
+ const int combinable; /* If nonzero, compiler can deal with
+ multiple source files at once (IMA). */
+ const int needs_preprocessing; /* If nonzero, source files need to
+ be run through a preprocessor. */
+};
+
+/* 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 const 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", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
+ {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
+ {".mii", "#Objective-C++", 0, 0, 0},
+ {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
+ {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
+ {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
+ {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
+ {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
+ {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
+ {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
+ {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
+ {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
+ {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
+ {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
+ {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
+ {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
+ {".r", "#Ratfor", 0, 0, 0},
+ {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
+ {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
+ {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
+ {".go", "#Go", 0, 1, 0},
+ /* Next come the entries for C. */
+ {".c", "@c", 0, 0, 1},
+ {"@c",
+ /* cc1 has an integrated ISO C preprocessor. We should invoke the
+ external preprocessor if -save-temps is given. */
+ "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
+ %{!E:%{!M:%{!MM:\
+ %{traditional:\
+%eGNU C no longer supports -traditional without -E}\
+ %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
+ %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
+ cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
+ %(cc1_options)}\
+ %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
+ cc1 %(cpp_unique_options) %(cc1_options)}}}\
+ %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
+ {"-",
+ "%{!E:%e-E or -x required when input is from standard input}\
+ %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
+ {".h", "@c-header", 0, 0, 0},
+ {"@c-header",
+ /* cc1 has an integrated ISO C preprocessor. We should invoke the
+ external preprocessor if -save-temps is given. */
+ "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
+ %{!E:%{!M:%{!MM:\
+ %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
+ %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
+ cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
+ %(cc1_options)\
+ %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
+ %W{o*:--output-pch=%*}}%V}\
+ %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
+ cc1 %(cpp_unique_options) %(cc1_options)\
+ %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
+ %W{o*:--output-pch=%*}}%V}}}}}}", 0, 0, 0},
+ {".i", "@cpp-output", 0, 0, 0},
+ {"@cpp-output",
+ "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
+ {".s", "@assembler", 0, 0, 0},
+ {"@assembler",
+ "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
+ {".sx", "@assembler-with-cpp", 0, 0, 0},
+ {".S", "@assembler-with-cpp", 0, 0, 0},
+ {"@assembler-with-cpp",
+#ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
+ "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
+ %{E|M|MM:%(cpp_debug_options)}\
+ %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
+ as %(asm_debug) %(asm_options) %|.s %A }}}}"
+#else
+ "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
+ %{E|M|MM:%(cpp_debug_options)}\
+ %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
+ as %(asm_debug) %(asm_options) %m.s %A }}}}"
+#endif
+ , 0, 0, 0},
+
+#include "specs.h"
+ /* Mark end of table. */
+ {0, 0, 0, 0, 0}
+};
+
+/* Number of elements in default_compilers, not counting the terminator. */
+
+static const int n_default_compilers = ARRAY_SIZE (default_compilers) - 1;
+
+typedef char *char_p; /* For DEF_VEC_P. */
+
+/* A vector of options to give to the linker.
+ These options are accumulated by %x,
+ and substituted into the linker command with %X. */
+static vec<char_p> 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 vec<char_p> 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 vec<char_p> preprocessor_options;
+
+static char *
+skip_whitespace (char *p)
+{
+ while (1)
+ {
+ /* A fully-blank line is a delimiter in the SPEC file and shouldn't
+ be considered whitespace. */
+ if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
+ return p + 1;
+ else if (*p == '\n' || *p == ' ' || *p == '\t')
+ p++;
+ else if (*p == '#')
+ {
+ while (*p != '\n')
+ p++;
+ p++;
+ }
+ else
+ break;
+ }
+
+ return p;
+}
+/* Structures to keep track of prefixes to try when looking for files. */
+
+struct prefix_list
+{
+ const 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 priority; /* Sort key - priority within list. */
+ int os_multilib; /* 1 if OS multilib scheme should be used,
+ 0 for GCC multilib scheme. */
+};
+
+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;
+
+/* Adjusted value of standard_libexec_prefix. */
+
+static const char *gcc_libexec_prefix;
+
+/* Default prefixes to attach to command names. */
+
+#ifndef STANDARD_STARTFILE_PREFIX_1
+#define STANDARD_STARTFILE_PREFIX_1 "/lib/"
+#endif
+#ifndef STANDARD_STARTFILE_PREFIX_2
+#define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
+#endif
+
+#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
+#endif
+
+/* If no prefixes defined, use the null string, which will disable them. */
+#ifndef MD_EXEC_PREFIX
+#define MD_EXEC_PREFIX ""
+#endif
+#ifndef MD_STARTFILE_PREFIX
+#define MD_STARTFILE_PREFIX ""
+#endif
+#ifndef MD_STARTFILE_PREFIX_1
+#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 *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_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;
+
+/* Subdirectory to use for locating libraries. Set by
+ set_multilib_dir based on the compilation options. */
+
+static const char *multilib_dir;
+
+/* Subdirectory to use for locating libraries in OS conventions. Set by
+ set_multilib_dir based on the compilation options. */
+
+static const char *multilib_os_dir;
+
+/* Subdirectory to use for locating libraries in multiarch conventions. Set by
+ set_multilib_dir based on the compilation options. */
+
+static const char *multiarch_dir;
+
+/* Structure to keep track of the specs that have been defined so far.
+ These are accessed using %(specname) in a compiler or link
+ spec. */
+
+struct spec_list
+{
+ /* The following 2 fields must be first */
+ /* to allow EXTRA_SPECS to be initialized */
+ const char *name; /* name of the spec. */
+ const char *ptr; /* available ptr if no static pointer */
+
+ /* The following fields are not initialized */
+ /* by EXTRA_SPECS */
+ const char **ptr_spec; /* pointer to the spec itself. */
+ struct spec_list *next; /* Next spec in linked list. */
+ int name_len; /* length of the name */
+ bool user_p; /* whether string come from file spec. */
+ bool alloc_p; /* whether string was allocated */
+};
+
+#define INIT_STATIC_SPEC(NAME,PTR) \
+ { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, false, false }
+
+/* List of statically defined specs. */
+static struct spec_list static_specs[] =
+{
+ INIT_STATIC_SPEC ("asm", &asm_spec),
+ INIT_STATIC_SPEC ("asm_debug", &asm_debug),
+ INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
+ INIT_STATIC_SPEC ("asm_options", &asm_options),
+ INIT_STATIC_SPEC ("invoke_as", &invoke_as),
+ INIT_STATIC_SPEC ("cpp", &cpp_spec),
+ INIT_STATIC_SPEC ("cpp_options", &cpp_options),
+ INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options),
+ INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options),
+ INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
+ INIT_STATIC_SPEC ("cc1", &cc1_spec),
+ INIT_STATIC_SPEC ("cc1_options", &cc1_options),
+ INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
+ INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec),
+ INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec),
+ INIT_STATIC_SPEC ("endfile", &endfile_spec),
+ INIT_STATIC_SPEC ("link", &link_spec),
+ INIT_STATIC_SPEC ("lib", &lib_spec),
+ INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec),
+ INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
+ INIT_STATIC_SPEC ("startfile", &startfile_spec),
+ 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 ("multilib_exclusions", &multilib_exclusions),
+ INIT_STATIC_SPEC ("multilib_options", &multilib_options),
+ INIT_STATIC_SPEC ("multilib_reuse", &multilib_reuse),
+ INIT_STATIC_SPEC ("linker", &linker_name_spec),
+ INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec),
+ INIT_STATIC_SPEC ("lto_wrapper", &lto_wrapper_spec),
+ INIT_STATIC_SPEC ("lto_gcc", &lto_gcc_spec),
+ INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
+ INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
+ INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
+ INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
+ INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec),
+ INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec),
+ INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec),
+ INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec),
+ INIT_STATIC_SPEC ("self_spec", &self_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
+{
+ const char *const name;
+ const char *const ptr;
+};
+
+static const 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;
+
+/* List of static spec functions. */
+
+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 },
+ { "sanitize", sanitize_spec_function },
+ { "replace-outfile", replace_outfile_spec_function },
+ { "remove-outfile", remove_outfile_spec_function },
+ { "version-compare", version_compare_spec_function },
+ { "include", include_spec_function },
+ { "find-file", find_file_spec_function },
+ { "find-plugindir", find_plugindir_spec_function },
+ { "print-asm-header", print_asm_header_spec_function },
+ { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function },
+ { "compare-debug-self-opt", compare_debug_self_opt_spec_function },
+ { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function },
+ { "pass-through-libs", pass_through_libs_spec_func },
+ { "replace-extension", replace_extension_spec_func },
+#ifdef EXTRA_SPEC_FUNCTIONS
+ EXTRA_SPEC_FUNCTIONS
+#endif
+ { 0, 0 }
+};
+
+static int processing_spec_function;
+
+/* Add appropriate libgcc specs to OBSTACK, taking into account
+ various permutations of -shared-libgcc, -shared, and such. */
+
+#if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
+
+#ifndef USE_LD_AS_NEEDED
+#define USE_LD_AS_NEEDED 0
+#endif
+
+static void
+init_gcc_specs (struct obstack *obstack, const char *shared_name,
+ const char *static_name, const char *eh_name)
+{
+ char *buf;
+
+ buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name, "}"
+ "%{!static:%{!static-libgcc:"
+#if USE_LD_AS_NEEDED
+ "%{!shared-libgcc:",
+ static_name, " " LD_AS_NEEDED_OPTION " ",
+ shared_name, " " LD_NO_AS_NEEDED_OPTION
+ "}"
+ "%{shared-libgcc:",
+ shared_name, "%{!shared: ", static_name, "}"
+ "}"
+#else
+ "%{!shared:"
+ "%{!shared-libgcc:", static_name, " ", eh_name, "}"
+ "%{shared-libgcc:", shared_name, " ", static_name, "}"
+ "}"
+#ifdef LINK_EH_SPEC
+ "%{shared:"
+ "%{shared-libgcc:", shared_name, "}"
+ "%{!shared-libgcc:", static_name, "}"
+ "}"
+#else
+ "%{shared:", shared_name, "}"
+#endif
+#endif
+ "}}", NULL);
+
+ obstack_grow (obstack, buf, strlen (buf));
+ free (buf);
+}
+#endif /* ENABLE_SHARED_LIBGCC */
+
+/* Initialize the specs lookup routines. */
+
+static void
+init_spec (void)
+{
+ 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)
+ fnotice (stderr, "Using built-in specs.\n");
+
+#ifdef EXTRA_SPECS
+ extra_specs = XCNEWVEC (struct spec_list, ARRAY_SIZE (extra_specs_1));
+
+ for (i = ARRAY_SIZE (extra_specs_1) - 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 = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
+ {
+ sl = &static_specs[i];
+ sl->next = next;
+ next = sl;
+ }
+
+#if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
+ /* ??? If neither -shared-libgcc nor --static-libgcc was
+ seen, then we should be making an educated guess. Some proposed
+ heuristics for ELF include:
+
+ (1) If "-Wl,--export-dynamic", then it's a fair bet that the
+ program will be doing dynamic loading, which will likely
+ need the shared libgcc.
+
+ (2) If "-ldl", then it's also a fair bet that we're doing
+ dynamic loading.
+
+ (3) For each ET_DYN we're linking against (either through -lfoo
+ or /some/path/foo.so), check to see whether it or one of
+ its dependencies depends on a shared libgcc.
+
+ (4) If "-shared"
+
+ If the runtime is fixed to look for program headers instead
+ of calling __register_frame_info at all, for each object,
+ use the shared libgcc if any EH symbol referenced.
+
+ If crtstuff is fixed to not invoke __register_frame_info
+ automatically, for each object, use the shared libgcc if
+ any non-empty unwind section found.
+
+ Doing any of this probably requires invoking an external program to
+ do the actual object file scanning. */
+ {
+ const char *p = libgcc_spec;
+ int in_sep = 1;
+
+ /* Transform the extant libgcc_spec into one that uses the shared libgcc
+ when given the proper command line arguments. */
+ while (*p)
+ {
+ if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0)
+ {
+ init_gcc_specs (&obstack,
+ "-lgcc_s"
+#ifdef USE_LIBUNWIND_EXCEPTIONS
+ " -lunwind"
+#endif
+ ,
+ "-lgcc",
+ "-lgcc_eh"
+#ifdef USE_LIBUNWIND_EXCEPTIONS
+# ifdef HAVE_LD_STATIC_DYNAMIC
+ " %{!static:" LD_STATIC_OPTION "} -lunwind"
+ " %{!static:" LD_DYNAMIC_OPTION "}"
+# else
+ " -lunwind"
+# endif
+#endif
+ );
+
+ p += 5;
+ in_sep = 0;
+ }
+ else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0)
+ {
+ /* Ug. We don't know shared library extensions. Hope that
+ systems that use this form don't do shared libraries. */
+ init_gcc_specs (&obstack,
+ "-lgcc_s",
+ "libgcc.a%s",
+ "libgcc_eh.a%s"
+#ifdef USE_LIBUNWIND_EXCEPTIONS
+ " -lunwind"
+#endif
+ );
+ p += 10;
+ in_sep = 0;
+ }
+ else
+ {
+ obstack_1grow (&obstack, *p);
+ in_sep = (*p == ' ');
+ p += 1;
+ }
+ }
+
+ obstack_1grow (&obstack, '\0');
+ libgcc_spec = XOBFINISH (&obstack, const char *);
+ }
+#endif
+#ifdef USE_AS_TRADITIONAL_FORMAT
+ /* Prepend "--traditional-format" to whatever asm_spec we had before. */
+ {
+ static const char tf[] = "--traditional-format ";
+ obstack_grow (&obstack, tf, sizeof (tf) - 1);
+ obstack_grow0 (&obstack, asm_spec, strlen (asm_spec));
+ asm_spec = XOBFINISH (&obstack, const char *);
+ }
+#endif
+
+#if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \
+ defined LINKER_HASH_STYLE
+# ifdef LINK_BUILDID_SPEC
+ /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
+ obstack_grow (&obstack, LINK_BUILDID_SPEC, sizeof (LINK_BUILDID_SPEC) - 1);
+# endif
+# ifdef LINK_EH_SPEC
+ /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
+ obstack_grow (&obstack, LINK_EH_SPEC, sizeof (LINK_EH_SPEC) - 1);
+# endif
+# ifdef LINKER_HASH_STYLE
+ /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had
+ before. */
+ {
+ static const char hash_style[] = "--hash-style=";
+ obstack_grow (&obstack, hash_style, sizeof (hash_style) - 1);
+ obstack_grow (&obstack, LINKER_HASH_STYLE, sizeof (LINKER_HASH_STYLE) - 1);
+ obstack_1grow (&obstack, ' ');
+ }
+# endif
+ obstack_grow0 (&obstack, link_spec, strlen (link_spec));
+ link_spec = XOBFINISH (&obstack, const char *);
+#endif
+
+ 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 (const char *name, const char *spec, bool user_p)
+{
+ struct spec_list *sl;
+ const 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 = ARRAY_SIZE (static_specs) - 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 = XNEW (struct spec_list);
+ sl->name = xstrdup (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)
+ : xstrdup (spec));
+
+#ifdef DEBUG_SPECS
+ if (verbose_flag)
+ fnotice (stderr, "Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
+#endif
+
+ /* Free the old spec. */
+ if (old_spec && sl->alloc_p)
+ free (CONST_CAST (char *, old_spec));
+
+ sl->user_p = user_p;
+ sl->alloc_p = true;
+}
+
+/* Accumulate a command (program name and args), and run it. */
+
+typedef const char *const_char_p; /* For DEF_VEC_P. */
+
+/* Vector of pointers to arguments in the current line of specifications. */
+
+static vec<const_char_p> argbuf;
+
+/* Position in the argbuf vector containing the name of the output file
+ (the value associated with the "-o" flag). */
+
+static int have_o_argbuf_index = 0;
+
+/* Were the options -c, -S or -E passed. */
+static int have_c = 0;
+
+/* Was the option -o passed. */
+static int have_o = 0;
+
+/* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
+ temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
+ it here. */
+
+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;
+
+/* Number of commands executed so far. */
+
+static int execution_count;
+
+/* Number of commands that exited with a signal. */
+
+static int signal_count;
+
+/* Allocate the argument vector. */
+
+static void
+alloc_args (void)
+{
+ argbuf.create (10);
+}
+
+/* Clear out the vector of arguments (after a command is executed). */
+
+static void
+clear_args (void)
+{
+ argbuf.truncate (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 (const char *arg, int delete_always, int delete_failure)
+{
+ argbuf.safe_push (arg);
+
+ if (strcmp (arg, "-o") == 0)
+ have_o_argbuf_index = argbuf.length ();
+ if (delete_always || delete_failure)
+ {
+ const char *p;
+ /* If the temporary file we should delete is specified as
+ part of a joined argument extract the filename. */
+ if (arg[0] == '-'
+ && (p = strrchr (arg, '=')))
+ arg = p + 1;
+ record_temp_file (arg, delete_always, delete_failure);
+ }
+}
+
+/* Load specs from a file name named FILENAME, replacing occurrences of
+ various different types of line-endings, \r\n, \n\r and just \r, with
+ a single \n. */
+
+static char *
+load_specs (const char *filename)
+{
+ int desc;
+ int readlen;
+ struct stat statbuf;
+ char *buffer;
+ char *buffer_p;
+ char *specs;
+ char *specs_p;
+
+ if (verbose_flag)
+ fnotice (stderr, "Reading specs from %s\n", filename);
+
+ /* Open and stat the file. */
+ desc = open (filename, O_RDONLY, 0);
+ if (desc < 0)
+ pfatal_with_name (filename);
+ if (stat (filename, &statbuf) < 0)
+ pfatal_with_name (filename);
+
+ /* Read contents of file into BUFFER. */
+ buffer = 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 = XNEWVEC (char, readlen + 1);
+ specs_p = specs;
+ for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
+ {
+ int skip = 0;
+ char c = *buffer_p;
+ if (c == '\r')
+ {
+ if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
+ skip = 1;
+ else if (*(buffer_p + 1) == '\n') /* \r\n */
+ skip = 1;
+ else /* \r */
+ c = '\n';
+ }
+ if (! skip)
+ *specs_p++ = c;
+ }
+ *specs_p = '\0';
+
+ free (buffer);
+ return (specs);
+}
+
+/* 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, 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 (const char *filename, bool main_p, bool user_p)
+{
+ char *buffer;
+ char *p;
+
+ buffer = load_specs (filename);
+
+ /* 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++;
+
+ /* Skip '\n'. */
+ p++;
+
+ 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_error ("specs %%include syntax malformed after "
+ "%ld characters",
+ (long) (p1 - buffer + 1));
+
+ p[-2] = '\0';
+ new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
+ read_specs (new_filename ? new_filename : p1, false, user_p);
+ 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_error ("specs %%include syntax malformed after "
+ "%ld characters",
+ (long) (p1 - buffer + 1));
+
+ p[-2] = '\0';
+ new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
+ if (new_filename)
+ read_specs (new_filename, false, user_p);
+ else if (verbose_flag)
+ fnotice (stderr, "could not find specs file %s\n", p1);
+ continue;
+ }
+ else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
+ && (p1[sizeof "%rename" - 1] == ' '
+ || p1[sizeof "%rename" - 1] == '\t'))
+ {
+ int name_len;
+ struct spec_list *sl;
+ struct spec_list *newsl;
+
+ /* Get original name. */
+ p1 += sizeof "%rename";
+ while (*p1 == ' ' || *p1 == '\t')
+ p1++;
+
+ if (! ISALPHA ((unsigned char) *p1))
+ fatal_error ("specs %%rename syntax malformed after "
+ "%ld characters",
+ (long) (p1 - buffer));
+
+ p2 = p1;
+ while (*p2 && !ISSPACE ((unsigned char) *p2))
+ p2++;
+
+ if (*p2 != ' ' && *p2 != '\t')
+ fatal_error ("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_error ("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_error ("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_error ("specs %s spec was not found to be renamed", p1);
+
+ if (strcmp (p1, p2) == 0)
+ continue;
+
+ for (newsl = specs; newsl; newsl = newsl->next)
+ if (strcmp (newsl->name, p2) == 0)
+ fatal_error ("%s: attempt to rename spec %qs to "
+ "already defined spec %qs",
+ filename, p1, p2);
+
+ if (verbose_flag)
+ {
+ fnotice (stderr, "rename spec %s to %s\n", p1, p2);
+#ifdef DEBUG_SPECS
+ fnotice (stderr, "spec is '%s'\n\n", *(sl->ptr_spec));
+#endif
+ }
+
+ set_spec (p2, *(sl->ptr_spec), user_p);
+ if (sl->alloc_p)
+ free (CONST_CAST (char *, *(sl->ptr_spec)));
+
+ *(sl->ptr_spec) = "";
+ sl->alloc_p = 0;
+ continue;
+ }
+ else
+ fatal_error ("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_error ("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_error ("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, user_p);
+ }
+ else
+ {
+ /* Add this pair to the vector. */
+ compilers
+ = XRESIZEVEC (struct compiler, compilers, n_compilers + 2);
+
+ compilers[n_compilers].suffix = suffix;
+ compilers[n_compilers].spec = spec;
+ n_compilers++;
+ memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
+ }
+
+ if (*suffix == 0)
+ link_command_spec = spec;
+ }
+
+ if (link_command_spec == 0)
+ fatal_error ("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 or %j.
+ 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. */
+
+void
+record_temp_file (const char *filename, int always_delete, int fail_delete)
+{
+ char *const name = xstrdup (filename);
+
+ if (always_delete)
+ {
+ struct temp_file *temp;
+ for (temp = always_delete_queue; temp; temp = temp->next)
+ if (! filename_cmp (name, temp->name))
+ goto already1;
+
+ temp = XNEW (struct temp_file);
+ temp->next = always_delete_queue;
+ temp->name = name;
+ always_delete_queue = temp;
+
+ already1:;
+ }
+
+ if (fail_delete)
+ {
+ struct temp_file *temp;
+ for (temp = failure_delete_queue; temp; temp = temp->next)
+ if (! filename_cmp (name, temp->name))
+ {
+ free (name);
+ goto already2;
+ }
+
+ temp = XNEW (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. */
+
+#ifndef DELETE_IF_ORDINARY
+#define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
+do \
+ { \
+ if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
+ if (unlink (NAME) < 0) \
+ if (VERBOSE_FLAG) \
+ perror_with_name (NAME); \
+ } while (0)
+#endif
+
+static void
+delete_if_ordinary (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 */
+ DELETE_IF_ORDINARY (name, st, verbose_flag);
+}
+
+static void
+delete_temp_files (void)
+{
+ 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 (void)
+{
+ struct temp_file *temp;
+
+ for (temp = failure_delete_queue; temp; temp = temp->next)
+ delete_if_ordinary (temp->name);
+}
+
+static void
+clear_failure_queue (void)
+{
+ failure_delete_queue = 0;
+}
+
+/* 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)
+{
+ struct prefix_list *pl;
+ const char *multi_dir = NULL;
+ const char *multi_os_dir = NULL;
+ const char *multiarch_suffix = 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)
+ {
+ 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 (multiarch_dir)
+ multiarch_suffix = concat (multiarch_dir, dir_separator_str, NULL);
+
+ while (1)
+ {
+ size_t multi_dir_len = 0;
+ size_t multi_os_dir_len = 0;
+ size_t multiarch_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);
+ if (multiarch_suffix)
+ multiarch_len = strlen (multiarch_suffix);
+ suffix_len = strlen (multi_suffix);
+ just_suffix_len = strlen (just_multi_suffix);
+
+ if (path == NULL)
+ {
+ len = paths->max_len + extra_space + 1;
+ len += MAX (MAX (suffix_len, multi_os_dir_len), multiarch_len);
+ path = XNEWVEC (char, len);
+ }
+
+ for (pl = paths->plist; pl != 0; pl = pl->next)
+ {
+ 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;
+ }
+
+ /* 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 multiarch path. */
+ if (!skip_multi_dir
+ && !pl->require_machine_suffix && multiarch_dir)
+ {
+ memcpy (path + len, multiarch_suffix, multiarch_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 (multi_dir == NULL && multi_os_dir == NULL)
+ break;
+
+ /* Run through the paths again, this time without multilibs.
+ Don't repeat any we have already seen. */
+ if (multi_dir)
+ {
+ free (CONST_CAST (char *, multi_dir));
+ multi_dir = NULL;
+ free (CONST_CAST (char *, multi_suffix));
+ multi_suffix = machine_suffix;
+ free (CONST_CAST (char *, just_multi_suffix));
+ just_multi_suffix = just_machine_suffix;
+ }
+ else
+ skip_multi_dir = true;
+ if (multi_os_dir)
+ {
+ free (CONST_CAST (char *, multi_os_dir));
+ multi_os_dir = NULL;
+ }
+ else
+ skip_multi_os_dir = true;
+ }
+
+ if (multi_dir)
+ {
+ free (CONST_CAST (char *, multi_dir));
+ free (CONST_CAST (char *, multi_suffix));
+ free (CONST_CAST (char *, just_multi_suffix));
+ }
+ if (multi_os_dir)
+ free (CONST_CAST (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 = (struct add_to_obstack_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;
+}
+
+/* Add or change the value of an environment variable, outputting the
+ change to standard error if in verbose mode. */
+static void
+xputenv (const char *string)
+{
+ if (verbose_flag)
+ fnotice (stderr, "%s\n", string);
+ putenv (CONST_CAST (char *, string));
+}
+
+/* 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 *);
+}
+
+/* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
+ for collect. */
+
+static void
+putenv_from_prefixes (const struct path_prefix *paths, const char *env_var,
+ bool do_multi)
+{
+ xputenv (build_search_list (paths, env_var, true, do_multi));
+}
+
+/* Check whether NAME can be accessed in MODE. This is like access,
+ except that it never considers directories to be executable. */
+
+static int
+access_check (const char *name, int mode)
+{
+ if (mode == X_OK)
+ {
+ struct stat st;
+
+ if (stat (name, &st) < 0
+ || S_ISDIR (st.st_mode))
+ return -1;
+ }
+
+ 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 = (struct file_at_path_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. 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 (const struct path_prefix *pprefix, const char *name, int mode,
+ bool do_multi)
+{
+ struct file_at_path_info info;
+
+#ifdef DEFAULT_ASSEMBLER
+ if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
+ return xstrdup (DEFAULT_ASSEMBLER);
+#endif
+
+#ifdef DEFAULT_LINKER
+ if (! strcmp (name, "ld") && access (DEFAULT_LINKER, mode) == 0)
+ return xstrdup (DEFAULT_LINKER);
+#endif
+
+ /* Determine the filename to execute (special case for absolute paths). */
+
+ if (IS_ABSOLUTE_PATH (name))
+ {
+ if (access (name, mode) == 0)
+ return xstrdup (name);
+
+ return NULL;
+ }
+
+ 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;
+
+ return (char*) 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
+ all others. */
+
+enum path_prefix_priority
+{
+ PREFIX_PRIORITY_B_OPT,
+ PREFIX_PRIORITY_LAST
+};
+
+/* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
+ order according to PRIORITY. Within each PRIORITY, new entries are
+ appended.
+
+ If WARN is nonzero, we will warn if no file is found
+ through this prefix. WARN should point to an int
+ which will be set to 1 if this entry is used.
+
+ COMPONENT is the value to be passed to update_path.
+
+ REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
+ the complete value of machine_suffix.
+ 2 means try both machine_suffix and just_machine_suffix. */
+
+static void
+add_prefix (struct path_prefix *pprefix, const char *prefix,
+ const char *component, /* enum prefix_priority */ int priority,
+ int require_machine_suffix, int os_multilib)
+{
+ struct prefix_list *pl, **prev;
+ int len;
+
+ for (prev = &pprefix->plist;
+ (*prev) != NULL && (*prev)->priority <= priority;
+ prev = &(*prev)->next)
+ ;
+
+ /* Keep track of the longest prefix. */
+
+ prefix = update_path (prefix, component);
+ len = strlen (prefix);
+ if (len > pprefix->max_len)
+ pprefix->max_len = len;
+
+ pl = XNEW (struct prefix_list);
+ pl->prefix = prefix;
+ pl->require_machine_suffix = require_machine_suffix;
+ pl->priority = priority;
+ pl->os_multilib = os_multilib;
+
+ /* Insert after PREV. */
+ pl->next = (*prev);
+ (*prev) = pl;
+}
+
+/* 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,
+ /* enum prefix_priority */ int priority,
+ int require_machine_suffix, int os_multilib)
+{
+ if (!IS_ABSOLUTE_PATH (prefix))
+ fatal_error ("system path %qs is not absolute", prefix);
+
+ if (target_system_root)
+ {
+ char *sysroot_no_trailing_dir_separator = xstrdup (target_system_root);
+ size_t sysroot_len = strlen (target_system_root);
+
+ if (sysroot_len > 0
+ && target_system_root[sysroot_len - 1] == DIR_SEPARATOR)
+ sysroot_no_trailing_dir_separator[sysroot_len - 1] = '\0';
+
+ if (target_sysroot_suffix)
+ prefix = concat (sysroot_no_trailing_dir_separator,
+ target_sysroot_suffix, prefix, NULL);
+ else
+ prefix = concat (sysroot_no_trailing_dir_separator, prefix, NULL);
+
+ free (sysroot_no_trailing_dir_separator);
+
+ /* We have to override this because GCC's notion of sysroot
+ moves along with GCC. */
+ component = "GCC";
+ }
+
+ add_prefix (pprefix, prefix, component, priority,
+ require_machine_suffix, os_multilib);
+}
+
+/* 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 (void)
+{
+ int i;
+ int n_commands; /* # of command. */
+ char *string;
+ struct pex_obj *pex;
+ struct command
+ {
+ const char *prog; /* program name. */
+ const char **argv; /* vector of args. */
+ };
+ const char *arg;
+
+ struct command *commands; /* each command buffer with above info. */
+
+ gcc_assert (!processing_spec_function);
+
+ if (wrapper_string)
+ {
+ string = find_a_file (&exec_prefixes,
+ argbuf[0], X_OK, false);
+ if (string)
+ argbuf[0] = string;
+ insert_wrapper (wrapper_string);
+ }
+
+ /* Count # of piped commands. */
+ for (n_commands = 1, i = 0; argbuf.iterate (i, &arg); i++)
+ if (strcmp (arg, "|") == 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. */
+
+ argbuf.safe_push (0);
+
+ commands[0].prog = argbuf[0]; /* first command. */
+ commands[0].argv = argbuf.address ();
+
+ if (!wrapper_string)
+ {
+ string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, false);
+ commands[0].argv[0] = (string) ? string : commands[0].argv[0];
+ }
+
+ for (n_commands = 1, i = 0; argbuf.iterate (i, &arg); i++)
+ if (arg && strcmp (arg, "|") == 0)
+ { /* each command. */
+#if defined (__MSDOS__) || defined (OS2) || defined (VMS)
+ fatal_error ("-pipe not supported");
+#endif
+ argbuf[i] = 0; /* Termination of
+ command args. */
+ commands[n_commands].prog = argbuf[i + 1];
+ commands[n_commands].argv
+ = &(argbuf.address ())[i + 1];
+ string = find_a_file (&exec_prefixes, commands[n_commands].prog,
+ X_OK, false);
+ if (string)
+ commands[n_commands].argv[0] = string;
+ n_commands++;
+ }
+
+ /* 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++)
+ {
+ const char *const *j;
+
+ if (verbose_only_flag)
+ {
+ for (j = commands[i].argv; *j; j++)
+ {
+ const char *p;
+ for (p = *j; *p; ++p)
+ if (!ISALNUM ((unsigned char) *p)
+ && *p != '_' && *p != '/' && *p != '-' && *p != '.')
+ break;
+ if (*p || !*j)
+ {
+ fprintf (stderr, " \"");
+ for (p = *j; *p; ++p)
+ {
+ if (*p == '"' || *p == '\\' || *p == '$')
+ fputc ('\\', stderr);
+ fputc (*p, stderr);
+ }
+ fputc ('"', stderr);
+ }
+ /* If it's empty, print "". */
+ else if (!**j)
+ fprintf (stderr, " \"\"");
+ else
+ fprintf (stderr, " %s", *j);
+ }
+ }
+ else
+ for (j = commands[i].argv; *j; j++)
+ /* If it's empty, print "". */
+ if (!**j)
+ fprintf (stderr, " \"\"");
+ else
+ 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);
+ if (verbose_only_flag != 0)
+ {
+ /* verbose_only_flag should act as if the spec was
+ executed, so increment execution_count before
+ returning. This prevents spurious warnings about
+ unused linker input files, etc. */
+ execution_count++;
+ return 0;
+ }
+#ifdef DEBUG
+ fnotice (stderr, "\nGo ahead? (y or n) ");
+ fflush (stderr);
+ i = getchar ();
+ if (i != '\n')
+ while (getchar () != '\n')
+ ;
+
+ if (i != 'y' && i != 'Y')
+ return 0;
+#endif /* DEBUG */
+ }
+
+#ifdef ENABLE_VALGRIND_CHECKING
+ /* Run the each command through valgrind. To simplify prepending the
+ path to valgrind and the option "-q" (for quiet operation unless
+ something triggers), we allocate a separate argv array. */
+
+ for (i = 0; i < n_commands; i++)
+ {
+ const char **argv;
+ int argc;
+ int j;
+
+ for (argc = 0; commands[i].argv[argc] != NULL; argc++)
+ ;
+
+ argv = XALLOCAVEC (const char *, argc + 3);
+
+ argv[0] = VALGRIND_PATH;
+ argv[1] = "-q";
+ for (j = 2; j < argc + 2; j++)
+ argv[j] = commands[i].argv[j - 2];
+ argv[j] = NULL;
+
+ commands[i].argv = argv;
+ commands[i].prog = argv[0];
+ }
+#endif
+
+ /* Run each piped subprocess. */
+
+ pex = pex_init (PEX_USE_PIPES | ((report_times || report_times_to_file)
+ ? PEX_RECORD_TIMES : 0),
+ progname, temp_filename);
+ if (pex == NULL)
+ fatal_error ("pex_init failed: %m");
+
+ for (i = 0; i < n_commands; i++)
+ {
+ const char *errmsg;
+ int err;
+ const char *string = commands[i].argv[0];
+
+ errmsg = pex_run (pex,
+ ((i + 1 == n_commands ? PEX_LAST : 0)
+ | (string == commands[i].prog ? PEX_SEARCH : 0)),
+ string, CONST_CAST (char **, commands[i].argv),
+ NULL, NULL, &err);
+ if (errmsg != NULL)
+ {
+ if (err == 0)
+ fatal_error (errmsg);
+ else
+ {
+ errno = err;
+ pfatal_with_name (errmsg);
+ }
+ }
+
+ if (string != commands[i].prog)
+ free (CONST_CAST (char *, string));
+ }
+
+ execution_count++;
+
+ /* Wait for all the subprocesses to finish. */
+
+ {
+ int *statuses;
+ struct pex_time *times = NULL;
+ int ret_code = 0;
+
+ statuses = (int *) alloca (n_commands * sizeof (int));
+ if (!pex_get_status (pex, n_commands, statuses))
+ fatal_error ("failed to get exit status: %m");
+
+ if (report_times || report_times_to_file)
+ {
+ times = (struct pex_time *) alloca (n_commands * sizeof (struct pex_time));
+ if (!pex_get_times (pex, n_commands, times))
+ fatal_error ("failed to get process times: %m");
+ }
+
+ pex_free (pex);
+
+ for (i = 0; i < n_commands; ++i)
+ {
+ int status = statuses[i];
+
+ if (WIFSIGNALED (status))
+ {
+#ifdef SIGPIPE
+ /* SIGPIPE is a special case. It happens in -pipe mode
+ when the compiler dies before the preprocessor is done,
+ or the assembler dies before the compiler is done.
+ There's generally been an error already, and this is
+ just fallout. So don't generate another error unless
+ we would otherwise have succeeded. */
+ if (WTERMSIG (status) == SIGPIPE
+ && (signal_count || greatest_status >= MIN_FATAL_STATUS))
+ {
+ signal_count++;
+ ret_code = -1;
+ }
+ else
+#endif
+ internal_error ("%s (program %s)",
+ strsignal (WTERMSIG (status)), commands[i].prog);
+ }
+ else if (WIFEXITED (status)
+ && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
+ {
+ if (WEXITSTATUS (status) > greatest_status)
+ greatest_status = WEXITSTATUS (status);
+ ret_code = -1;
+ }
+
+ if (report_times || report_times_to_file)
+ {
+ struct pex_time *pt = &times[i];
+ double ut, st;
+
+ ut = ((double) pt->user_seconds
+ + (double) pt->user_microseconds / 1.0e6);
+ st = ((double) pt->system_seconds
+ + (double) pt->system_microseconds / 1.0e6);
+
+ if (ut + st != 0)
+ {
+ if (report_times)
+ fnotice (stderr, "# %s %.2f %.2f\n",
+ commands[i].prog, ut, st);
+
+ if (report_times_to_file)
+ {
+ int c = 0;
+ const char *const *j;
+
+ fprintf (report_times_to_file, "%g %g", ut, st);
+
+ for (j = &commands[i].prog; *j; j = &commands[i].argv[++c])
+ {
+ const char *p;
+ for (p = *j; *p; ++p)
+ if (*p == '"' || *p == '\\' || *p == '$'
+ || ISSPACE (*p))
+ break;
+
+ if (*p)
+ {
+ fprintf (report_times_to_file, " \"");
+ for (p = *j; *p; ++p)
+ {
+ if (*p == '"' || *p == '\\' || *p == '$')
+ fputc ('\\', report_times_to_file);
+ fputc (*p, report_times_to_file);
+ }
+ fputc ('"', report_times_to_file);
+ }
+ else
+ fprintf (report_times_to_file, " %s", *j);
+ }
+
+ fputc ('\n', report_times_to_file);
+ }
+ }
+ }
+ }
+
+ 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.
+ Bits in the `live_cond' field are:
+ SWITCH_LIVE to indicate this switch is true in a conditional spec.
+ SWITCH_FALSE to indicate this switch is overridden by a later switch.
+ SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
+ SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored
+ in all do_spec calls afterwards. Used for %<S from self specs.
+ 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. */
+
+#define SWITCH_LIVE (1 << 0)
+#define SWITCH_FALSE (1 << 1)
+#define SWITCH_IGNORE (1 << 2)
+#define SWITCH_IGNORE_PERMANENTLY (1 << 3)
+#define SWITCH_KEEP_FOR_GCC (1 << 4)
+
+struct switchstr
+{
+ const char *part1;
+ const char **args;
+ unsigned int live_cond;
+ bool known;
+ bool validated;
+ bool ordering;
+};
+
+static struct switchstr *switches;
+
+static int n_switches;
+
+static int n_switches_alloc;
+
+/* Set to zero if -fcompare-debug is disabled, positive if it's
+ enabled and we're running the first compilation, negative if it's
+ enabled and we're running the second compilation. For most of the
+ time, it's in the range -1..1, but it can be temporarily set to 2
+ or 3 to indicate that the -fcompare-debug flags didn't come from
+ the command-line, but rather from the GCC_COMPARE_DEBUG environment
+ variable, until a synthesized -fcompare-debug flag is added to the
+ command line. */
+int compare_debug;
+
+/* Set to nonzero if we've seen the -fcompare-debug-second flag. */
+int compare_debug_second;
+
+/* Set to the flags that should be passed to the second compilation in
+ a -fcompare-debug compilation. */
+const char *compare_debug_opt;
+
+static struct switchstr *switches_debug_check[2];
+
+static int n_switches_debug_check[2];
+
+static int n_switches_alloc_debug_check[2];
+
+static char *debug_check_temp_file[2];
+
+/* Language is one of three things:
+
+ 1) The name of a real programming language.
+ 2) NULL, indicating that no one has figured out
+ what it is yet.
+ 3) '*', indicating that the file should be passed
+ to the linker. */
+struct infile
+{
+ const char *name;
+ const char *language;
+ struct compiler *incompiler;
+ bool compiled;
+ bool preprocessed;
+};
+
+/* Also a vector of input files specified. */
+
+static struct infile *infiles;
+
+int n_infiles;
+
+static int n_infiles_alloc;
+
+/* True if multiple input files are being compiled to a single
+ assembly file. */
+
+static bool combine_inputs;
+
+/* 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. */
+
+const char **outfiles;
+
+#if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_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. DO_OBJ
+ is true if we should look for an object suffix. */
+
+static const char *
+convert_filename (const char *name, int do_exe ATTRIBUTE_UNUSED,
+ int do_obj ATTRIBUTE_UNUSED)
+{
+#if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
+ int i;
+#endif
+ int len;
+
+ if (name == NULL)
+ return NULL;
+
+ len = strlen (name);
+
+#ifdef HAVE_TARGET_OBJECT_SUFFIX
+ /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
+ if (do_obj && len > 2
+ && name[len - 2] == '.'
+ && name[len - 1] == 'o')
+ {
+ obstack_grow (&obstack, name, len - 2);
+ obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
+ name = XOBFINISH (&obstack, const char *);
+ }
+#endif
+
+#if defined(HAVE_TARGET_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 || TARGET_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, TARGET_EXECUTABLE_SUFFIX,
+ strlen (TARGET_EXECUTABLE_SUFFIX));
+ name = XOBFINISH (&obstack, const char *);
+#endif
+
+ return name;
+}
+#endif
+
+/* Display the command line switches accepted by gcc. */
+static void
+display_help (void)
+{
+ printf (_("Usage: %s [options] file...\n"), progname);
+ fputs (_("Options:\n"), stdout);
+
+ 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={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...]\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 (_(" --version Display compiler version information\n"), stdout);
+ fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
+ fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
+ fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
+ fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
+ fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
+ fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
+ fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
+ fputs (_("\
+ -print-multiarch Display the target's normalized GNU triplet, used as\n\
+ a component in the library path\n"), stdout);
+ fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
+ fputs (_("\
+ -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 Display the target libraries directory\n"), stdout);
+ fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout);
+ fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
+ fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
+ fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
+ fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout);
+ fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout);
+ fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
+ fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
+ fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout);
+ fputs (_("\
+ -no-canonical-prefixes Do not canonicalize paths when building relative\n\
+ prefixes to other gcc components\n"), stdout);
+ fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
+ fputs (_(" -time Time the execution of each subprocess\n"), stdout);
+ fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout);
+ fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
+ fputs (_("\
+ --sysroot=<directory> Use <directory> as the root directory for headers\n\
+ and libraries\n"), stdout);
+ fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
+ fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
+ fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout);
+ fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
+ fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
+ fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
+ fputs (_(" -o <file> Place the output into <file>\n"), stdout);
+ fputs (_(" -pie Create a position independent executable\n"), stdout);
+ fputs (_(" -shared Create a shared library\n"), stdout);
+ fputs (_("\
+ -x <language> Specify the language of the following input files\n\
+ Permissible languages include: c c++ assembler none\n\
+ 'none' means revert to the default behavior of\n\
+ guessing the language based on the file's extension\n\
+"), stdout);
+
+ printf (_("\
+\nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
+ passed on to the various sub-processes invoked by %s. In order to pass\n\
+ other options on to these processes the -W<letter> options must be used.\n\
+"), progname);
+
+ /* The rest of the options are displayed by invocations of the various
+ sub-processes. */
+}
+
+static void
+add_preprocessor_option (const char *option, int len)
+{
+ preprocessor_options.safe_push (save_string (option, len));
+}
+
+static void
+add_assembler_option (const char *option, int len)
+{
+ assembler_options.safe_push (save_string (option, len));
+}
+
+static void
+add_linker_option (const char *option, int len)
+{
+ linker_options.safe_push (save_string (option, len));
+}
+
+/* Allocate space for an input file in infiles. */
+
+static void
+alloc_infile (void)
+{
+ if (n_infiles_alloc == 0)
+ {
+ n_infiles_alloc = 16;
+ infiles = XNEWVEC (struct infile, n_infiles_alloc);
+ }
+ else if (n_infiles_alloc == n_infiles)
+ {
+ n_infiles_alloc *= 2;
+ infiles = XRESIZEVEC (struct infile, infiles, n_infiles_alloc);
+ }
+}
+
+/* Store an input file with the given NAME and LANGUAGE in
+ infiles. */
+
+static void
+add_infile (const char *name, const char *language)
+{
+ alloc_infile ();
+ infiles[n_infiles].name = name;
+ infiles[n_infiles++].language = language;
+}
+
+/* Allocate space for a switch in switches. */
+
+static void
+alloc_switch (void)
+{
+ if (n_switches_alloc == 0)
+ {
+ n_switches_alloc = 16;
+ switches = XNEWVEC (struct switchstr, n_switches_alloc);
+ }
+ else if (n_switches_alloc == n_switches)
+ {
+ n_switches_alloc *= 2;
+ switches = XRESIZEVEC (struct switchstr, switches, n_switches_alloc);
+ }
+}
+
+/* Save an option OPT with N_ARGS arguments in array ARGS, marking it
+ as validated if VALIDATED and KNOWN if it is an internal switch. */
+
+static void
+save_switch (const char *opt, size_t n_args, const char *const *args,
+ bool validated, bool known)
+{
+ alloc_switch ();
+ switches[n_switches].part1 = opt + 1;
+ if (n_args == 0)
+ switches[n_switches].args = 0;
+ else
+ {
+ switches[n_switches].args = XNEWVEC (const char *, n_args + 1);
+ memcpy (switches[n_switches].args, args, n_args * sizeof (const char *));
+ switches[n_switches].args[n_args] = NULL;
+ }
+
+ switches[n_switches].live_cond = 0;
+ switches[n_switches].validated = validated;
+ switches[n_switches].known = known;
+ switches[n_switches].ordering = 0;
+ n_switches++;
+}
+
+/* Handle an option DECODED that is unknown to the option-processing
+ machinery. */
+
+static bool
+driver_unknown_option_callback (const struct cl_decoded_option *decoded)
+{
+ const char *opt = decoded->arg;
+ if (opt[1] == 'W' && opt[2] == 'n' && opt[3] == 'o' && opt[4] == '-'
+ && !(decoded->errors & CL_ERR_NEGATIVE))
+ {
+ /* Leave unknown -Wno-* options for the compiler proper, to be
+ diagnosed only if there are warnings. */
+ save_switch (decoded->canonical_option[0],
+ decoded->canonical_option_num_elements - 1,
+ &decoded->canonical_option[1], false, true);
+ return false;
+ }
+ if (decoded->opt_index == OPT_SPECIAL_unknown)
+ {
+ /* Give it a chance to define it a a spec file. */
+ save_switch (decoded->canonical_option[0],
+ decoded->canonical_option_num_elements - 1,
+ &decoded->canonical_option[1], false, false);
+ return false;
+ }
+ else
+ return true;
+}
+
+/* Handle an option DECODED that is not marked as CL_DRIVER.
+ LANG_MASK will always be CL_DRIVER. */
+
+static void
+driver_wrong_lang_callback (const struct cl_decoded_option *decoded,
+ unsigned int lang_mask ATTRIBUTE_UNUSED)
+{
+ /* At this point, non-driver options are accepted (and expected to
+ be passed down by specs) unless marked to be rejected by the
+ driver. Options to be rejected by the driver but accepted by the
+ compilers proper are treated just like completely unknown
+ options. */
+ const struct cl_option *option = &cl_options[decoded->opt_index];
+
+ if (option->cl_reject_driver)
+ error ("unrecognized command line option %qs",
+ decoded->orig_option_with_args_text);
+ else
+ save_switch (decoded->canonical_option[0],
+ decoded->canonical_option_num_elements - 1,
+ &decoded->canonical_option[1], false, true);
+}
+
+static const char *spec_lang = 0;
+static int last_language_n_infiles;
+
+/* Handle a driver option; arguments and return value as for
+ handle_option. */
+
+static bool
+driver_handle_option (struct gcc_options *opts,
+ struct gcc_options *opts_set,
+ const struct cl_decoded_option *decoded,
+ unsigned int lang_mask ATTRIBUTE_UNUSED, int kind,
+ location_t loc,
+ const struct cl_option_handlers *handlers ATTRIBUTE_UNUSED,
+ diagnostic_context *dc)
+{
+ size_t opt_index = decoded->opt_index;
+ const char *arg = decoded->arg;
+ const char *compare_debug_replacement_opt;
+ int value = decoded->value;
+ bool validated = false;
+ bool do_save = true;
+
+ gcc_assert (opts == &global_options);
+ gcc_assert (opts_set == &global_options_set);
+ gcc_assert (kind == DK_UNSPECIFIED);
+ gcc_assert (loc == UNKNOWN_LOCATION);
+ gcc_assert (dc == global_dc);
+
+ switch (opt_index)
+ {
+ case OPT_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);
+ }
+
+ case OPT_dumpversion:
+ printf ("%s\n", spec_version);
+ exit (0);
+
+ case OPT_dumpmachine:
+ printf ("%s\n", spec_machine);
+ exit (0);
+
+ case OPT__version:
+ print_version = 1;
+
+ /* CPP driver cannot obtain switch from cc1_options. */
+ if (is_cpp_driver)
+ add_preprocessor_option ("--version", strlen ("--version"));
+ add_assembler_option ("--version", strlen ("--version"));
+ add_linker_option ("--version", strlen ("--version"));
+ break;
+
+ case OPT__help:
+ print_help_list = 1;
+
+ /* CPP driver cannot obtain switch from cc1_options. */
+ if (is_cpp_driver)
+ add_preprocessor_option ("--help", 6);
+ add_assembler_option ("--help", 6);
+ add_linker_option ("--help", 6);
+ break;
+
+ case OPT__help_:
+ print_subprocess_help = 2;
+ break;
+
+ case OPT__target_help:
+ print_subprocess_help = 1;
+
+ /* CPP driver cannot obtain switch from cc1_options. */
+ if (is_cpp_driver)
+ add_preprocessor_option ("--target-help", 13);
+ add_assembler_option ("--target-help", 13);
+ add_linker_option ("--target-help", 13);
+ break;
+
+ case OPT__no_sysroot_suffix:
+ case OPT_pass_exit_codes:
+ case OPT_print_search_dirs:
+ case OPT_print_file_name_:
+ case OPT_print_prog_name_:
+ case OPT_print_multi_lib:
+ case OPT_print_multi_directory:
+ case OPT_print_sysroot:
+ case OPT_print_multi_os_directory:
+ case OPT_print_multiarch:
+ case OPT_print_sysroot_headers_suffix:
+ case OPT_time:
+ case OPT_wrapper:
+ /* These options set the variables specified in common.opt
+ automatically, and do not need to be saved for spec
+ processing. */
+ do_save = false;
+ break;
+
+ case OPT_print_libgcc_file_name:
+ print_file_name = "libgcc.a";
+ do_save = false;
+ break;
+
+ case OPT_fuse_ld_bfd:
+ use_ld = ".bfd";
+ break;
+
+ case OPT_fuse_ld_gold:
+ use_ld = ".gold";
+ break;
+
+ case OPT_fcompare_debug_second:
+ compare_debug_second = 1;
+ break;
+
+ case OPT_fcompare_debug:
+ switch (value)
+ {
+ case 0:
+ compare_debug_replacement_opt = "-fcompare-debug=";
+ arg = "";
+ goto compare_debug_with_arg;
+
+ case 1:
+ compare_debug_replacement_opt = "-fcompare-debug=-gtoggle";
+ arg = "-gtoggle";
+ goto compare_debug_with_arg;
+
+ default:
+ gcc_unreachable ();
+ }
+ break;
+
+ case OPT_fcompare_debug_:
+ compare_debug_replacement_opt = decoded->canonical_option[0];
+ compare_debug_with_arg:
+ gcc_assert (decoded->canonical_option_num_elements == 1);
+ gcc_assert (arg != NULL);
+ if (*arg)
+ compare_debug = 1;
+ else
+ compare_debug = -1;
+ if (compare_debug < 0)
+ compare_debug_opt = NULL;
+ else
+ compare_debug_opt = arg;
+ save_switch (compare_debug_replacement_opt, 0, NULL, validated, true);
+ return true;
+
+ case OPT_Wa_:
+ {
+ int prev, j;
+ /* Pass the rest of this option to the assembler. */
+
+ /* Split the argument at commas. */
+ prev = 0;
+ for (j = 0; arg[j]; j++)
+ if (arg[j] == ',')
+ {
+ add_assembler_option (arg + prev, j - prev);
+ prev = j + 1;
+ }
+
+ /* Record the part after the last comma. */
+ add_assembler_option (arg + prev, j - prev);
+ }
+ do_save = false;
+ break;
+
+ case OPT_Wp_:
+ {
+ int prev, j;
+ /* Pass the rest of this option to the preprocessor. */
+
+ /* Split the argument at commas. */
+ prev = 0;
+ for (j = 0; arg[j]; j++)
+ if (arg[j] == ',')
+ {
+ add_preprocessor_option (arg + prev, j - prev);
+ prev = j + 1;
+ }
+
+ /* Record the part after the last comma. */
+ add_preprocessor_option (arg + prev, j - prev);
+ }
+ do_save = false;
+ break;
+
+ case OPT_Wl_:
+ {
+ int prev, j;
+ /* Split the argument at commas. */
+ prev = 0;
+ for (j = 0; arg[j]; j++)
+ if (arg[j] == ',')
+ {
+ add_infile (save_string (arg + prev, j - prev), "*");
+ prev = j + 1;
+ }
+ /* Record the part after the last comma. */
+ add_infile (arg + prev, "*");
+ }
+ do_save = false;
+ break;
+
+ case OPT_Xlinker:
+ add_infile (arg, "*");
+ do_save = false;
+ break;
+
+ case OPT_Xpreprocessor:
+ add_preprocessor_option (arg, strlen (arg));
+ do_save = false;
+ break;
+
+ case OPT_Xassembler:
+ add_assembler_option (arg, strlen (arg));
+ do_save = false;
+ break;
+
+ case OPT_l:
+ /* POSIX allows separation of -l and the lib arg; canonicalize
+ by concatenating -l with its arg */
+ add_infile (concat ("-l", arg, NULL), "*");
+ do_save = false;
+ break;
+
+ case OPT_L:
+ /* Similarly, canonicalize -L for linkers that may not accept
+ separate arguments. */
+ save_switch (concat ("-L", arg, NULL), 0, NULL, validated, true);
+ return true;
+
+ case OPT_F:
+ /* Likewise -F. */
+ save_switch (concat ("-F", arg, NULL), 0, NULL, validated, true);
+ return true;
+
+ case OPT_save_temps:
+ save_temps_flag = SAVE_TEMPS_CWD;
+ validated = true;
+ break;
+
+ case OPT_save_temps_:
+ if (strcmp (arg, "cwd") == 0)
+ save_temps_flag = SAVE_TEMPS_CWD;
+ else if (strcmp (arg, "obj") == 0
+ || strcmp (arg, "object") == 0)
+ save_temps_flag = SAVE_TEMPS_OBJ;
+ else
+ fatal_error ("%qs is an unknown -save-temps option",
+ decoded->orig_option_with_args_text);
+ break;
+
+ case OPT_no_canonical_prefixes:
+ /* Already handled as a special case, so ignored here. */
+ do_save = false;
+ break;
+
+ case OPT_pipe:
+ validated = true;
+ /* These options set the variables specified in common.opt
+ automatically, but do need to be saved for spec
+ processing. */
+ break;
+
+ case OPT_specs_:
+ {
+ struct user_specs *user = XNEW (struct user_specs);
+
+ user->next = (struct user_specs *) 0;
+ user->filename = arg;
+ if (user_specs_tail)
+ user_specs_tail->next = user;
+ else
+ user_specs_head = user;
+ user_specs_tail = user;
+ }
+ validated = true;
+ break;
+
+ case OPT__sysroot_:
+ target_system_root = arg;
+ target_system_root_changed = 1;
+ do_save = false;
+ break;
+
+ case OPT_time_:
+ if (report_times_to_file)
+ fclose (report_times_to_file);
+ report_times_to_file = fopen (arg, "a");
+ do_save = false;
+ break;
+
+ case OPT____:
+ /* "-###"
+ This is similar to -v except that there is no execution
+ of the commands and the echoed arguments are quoted. It
+ is intended for use in shell scripts to capture the
+ driver-generated command line. */
+ verbose_only_flag++;
+ verbose_flag = 1;
+ do_save = false;
+ break;
+
+ case OPT_B:
+ {
+ size_t len = strlen (arg);
+
+ /* Catch the case where the user has forgotten to append a
+ directory separator to the path. Note, they may be using
+ -B to add an executable name prefix, eg "i386-elf-", in
+ order to distinguish between multiple installations of
+ GCC in the same directory. Hence we must check to see
+ if appending a directory separator actually makes a
+ valid directory name. */
+ if (!IS_DIR_SEPARATOR (arg[len - 1])
+ && is_directory (arg, false))
+ {
+ char *tmp = XNEWVEC (char, len + 2);
+ strcpy (tmp, arg);
+ tmp[len] = DIR_SEPARATOR;
+ tmp[++len] = 0;
+ arg = tmp;
+ }
+
+ add_prefix (&exec_prefixes, arg, NULL,
+ PREFIX_PRIORITY_B_OPT, 0, 0);
+ add_prefix (&startfile_prefixes, arg, NULL,
+ PREFIX_PRIORITY_B_OPT, 0, 0);
+ add_prefix (&include_prefixes, arg, NULL,
+ PREFIX_PRIORITY_B_OPT, 0, 0);
+ }
+ validated = true;
+ break;
+
+ case OPT_x:
+ spec_lang = arg;
+ 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;
+ do_save = false;
+ break;
+
+ case OPT_o:
+ have_o = 1;
+#if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
+ arg = convert_filename (arg, ! have_c, 0);
+#endif
+ /* Save the output name in case -save-temps=obj was used. */
+ save_temps_prefix = xstrdup (arg);
+ /* On some systems, ld cannot handle "-o" without a space. So
+ split the option from its argument. */
+ save_switch ("-o", 1, &arg, validated, true);
+ return true;
+
+ case OPT_static_libgcc:
+ case OPT_shared_libgcc:
+ case OPT_static_libgfortran:
+ case OPT_static_libstdc__:
+ /* These are always valid, since gcc.c itself understands the
+ first two, gfortranspec.c understands -static-libgfortran and
+ g++spec.c understands -static-libstdc++ */
+ validated = true;
+ break;
+
+ case OPT_fwpa:
+ flag_wpa = "";
+ break;
+
+ default:
+ /* Various driver options need no special processing at this
+ point, having been handled in a prescan above or being
+ handled by specs. */
+ break;
+ }
+
+ if (do_save)
+ save_switch (decoded->canonical_option[0],
+ decoded->canonical_option_num_elements - 1,
+ &decoded->canonical_option[1], validated, true);
+ return true;
+}
+
+/* Put the driver's standard set of option handlers in *HANDLERS. */
+
+static void
+set_option_handlers (struct cl_option_handlers *handlers)
+{
+ handlers->unknown_option_callback = driver_unknown_option_callback;
+ handlers->wrong_lang_callback = driver_wrong_lang_callback;
+ handlers->num_handlers = 3;
+ handlers->handlers[0].handler = driver_handle_option;
+ handlers->handlers[0].mask = CL_DRIVER;
+ handlers->handlers[1].handler = common_handle_option;
+ handlers->handlers[1].mask = CL_COMMON;
+ handlers->handlers[2].handler = target_handle_option;
+ handlers->handlers[2].mask = CL_TARGET;
+}
+
+/* Create the vector `switches' and its contents.
+ Store its length in `n_switches'. */
+
+static void
+process_command (unsigned int decoded_options_count,
+ struct cl_decoded_option *decoded_options)
+{
+ const char *temp;
+ char *temp1;
+ char *tooldir_prefix, *tooldir_prefix2;
+ char *(*get_relative_prefix) (const char *, const char *,
+ const char *) = NULL;
+ struct cl_option_handlers handlers;
+ unsigned int j;
+
+ gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
+
+ n_switches = 0;
+ n_infiles = 0;
+ added_libraries = 0;
+
+ /* Figure compiler version from version string. */
+
+ compiler_version = temp1 = xstrdup (version_string);
+
+ for (; *temp1; ++temp1)
+ {
+ if (*temp1 == ' ')
+ {
+ *temp1 = '\0';
+ break;
+ }
+ }
+
+ /* Handle any -no-canonical-prefixes flag early, to assign the function
+ that builds relative prefixes. This function creates default search
+ paths that are needed later in normal option handling. */
+
+ for (j = 1; j < decoded_options_count; j++)
+ {
+ if (decoded_options[j].opt_index == OPT_no_canonical_prefixes)
+ {
+ get_relative_prefix = make_relative_prefix_ignore_links;
+ break;
+ }
+ }
+ if (! get_relative_prefix)
+ get_relative_prefix = make_relative_prefix;
+
+ /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
+ see if we can create it from the pathname specified in
+ decoded_options[0].arg. */
+
+ gcc_libexec_prefix = standard_libexec_prefix;
+#ifndef VMS
+ /* FIXME: make_relative_prefix doesn't yet work for VMS. */
+ if (!gcc_exec_prefix)
+ {
+ gcc_exec_prefix = get_relative_prefix (decoded_options[0].arg,
+ standard_bindir_prefix,
+ standard_exec_prefix);
+ gcc_libexec_prefix = get_relative_prefix (decoded_options[0].arg,
+ standard_bindir_prefix,
+ standard_libexec_prefix);
+ if (gcc_exec_prefix)
+ xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL));
+ }
+ else
+ {
+ /* 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 = get_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
+ decoded_options[0].arg. */
+
+ /* Do language-specific adjustment/addition of flags. */
+ lang_specific_driver (&decoded_options, &decoded_options_count,
+ &added_libraries);
+
+ if (gcc_exec_prefix)
+ {
+ int len = strlen (gcc_exec_prefix);
+
+ if (len > (int) sizeof ("/lib/gcc/") - 1
+ && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
+ {
+ temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1;
+ if (IS_DIR_SEPARATOR (*temp)
+ && filename_ncmp (temp + 1, "lib", 3) == 0
+ && IS_DIR_SEPARATOR (temp[4])
+ && filename_ncmp (temp + 5, "gcc", 3) == 0)
+ len -= sizeof ("/lib/gcc/") - 1;
+ }
+
+ set_std_prefix (gcc_exec_prefix, len);
+ add_prefix (&exec_prefixes, gcc_libexec_prefix, "GCC",
+ PREFIX_PRIORITY_LAST, 0, 0);
+ add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
+ PREFIX_PRIORITY_LAST, 0, 0);
+ }
+
+ /* COMPILER_PATH and LIBRARY_PATH have values
+ that are lists of directory names with colons. */
+
+ temp = getenv ("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));
+ 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,
+ PREFIX_PRIORITY_LAST, 0, 0);
+ add_prefix (&include_prefixes, nstore, 0,
+ PREFIX_PRIORITY_LAST, 0, 0);
+ if (*endp == 0)
+ break;
+ endp = startp = endp + 1;
+ }
+ else
+ endp++;
+ }
+ }
+
+ temp = getenv (LIBRARY_PATH_ENV);
+ 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));
+ 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,
+ PREFIX_PRIORITY_LAST, 0, 1);
+ if (*endp == 0)
+ break;
+ endp = startp = endp + 1;
+ }
+ else
+ endp++;
+ }
+ }
+
+ /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
+ temp = getenv ("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));
+ 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,
+ PREFIX_PRIORITY_LAST, 0, 1);
+ if (*endp == 0)
+ break;
+ endp = startp = endp + 1;
+ }
+ else
+ endp++;
+ }
+ }
+
+ /* Process the options and store input files and switches in their
+ vectors. */
+
+ last_language_n_infiles = -1;
+
+ set_option_handlers (&handlers);
+
+ for (j = 1; j < decoded_options_count; j++)
+ {
+ switch (decoded_options[j].opt_index)
+ {
+ case OPT_S:
+ case OPT_c:
+ case OPT_E:
+ have_c = 1;
+ break;
+ }
+ if (have_c)
+ break;
+ }
+
+ for (j = 1; j < decoded_options_count; j++)
+ {
+ if (decoded_options[j].opt_index == OPT_SPECIAL_input_file)
+ {
+ const char *arg = decoded_options[j].arg;
+ const char *p = strrchr (arg, '@');
+ char *fname;
+ long offset;
+ int consumed;
+#ifdef HAVE_TARGET_OBJECT_SUFFIX
+ arg = convert_filename (arg, 0, access (arg, F_OK));
+#endif
+ /* For LTO static archive support we handle input file
+ specifications that are composed of a filename and
+ an offset like FNAME@OFFSET. */
+ if (p
+ && p != arg
+ && sscanf (p, "@%li%n", &offset, &consumed) >= 1
+ && strlen (p) == (unsigned int)consumed)
+ {
+ fname = (char *)xmalloc (p - arg + 1);
+ memcpy (fname, arg, p - arg);
+ fname[p - arg] = '\0';
+ /* Only accept non-stdin and existing FNAME parts, otherwise
+ try with the full name. */
+ if (strcmp (fname, "-") == 0 || access (fname, F_OK) < 0)
+ {
+ free (fname);
+ fname = xstrdup (arg);
+ }
+ }
+ else
+ fname = xstrdup (arg);
+
+ if (strcmp (fname, "-") != 0 && access (fname, F_OK) < 0)
+ perror_with_name (fname);
+ else
+ add_infile (arg, spec_lang);
+
+ free (fname);
+ continue;
+ }
+
+ read_cmdline_option (&global_options, &global_options_set,
+ decoded_options + j, UNKNOWN_LOCATION,
+ CL_DRIVER, &handlers, global_dc);
+ }
+
+ /* If -save-temps=obj and -o name, create the prefix to use for %b.
+ Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
+ if (save_temps_flag == SAVE_TEMPS_OBJ && save_temps_prefix != NULL)
+ {
+ save_temps_length = strlen (save_temps_prefix);
+ temp = strrchr (lbasename (save_temps_prefix), '.');
+ if (temp)
+ {
+ save_temps_length -= strlen (temp);
+ save_temps_prefix[save_temps_length] = '\0';
+ }
+
+ }
+ else if (save_temps_prefix != NULL)
+ {
+ free (save_temps_prefix);
+ save_temps_prefix = NULL;
+ }
+
+ if (save_temps_flag && use_pipes)
+ {
+ /* -save-temps overrides -pipe, so that temp files are produced */
+ if (save_temps_flag)
+ warning (0, "-pipe ignored because -save-temps specified");
+ use_pipes = 0;
+ }
+
+ if (!compare_debug)
+ {
+ const char *gcd = getenv ("GCC_COMPARE_DEBUG");
+
+ if (gcd && gcd[0] == '-')
+ {
+ compare_debug = 2;
+ compare_debug_opt = gcd;
+ }
+ else if (gcd && *gcd && strcmp (gcd, "0"))
+ {
+ compare_debug = 3;
+ compare_debug_opt = "-gtoggle";
+ }
+ }
+ else if (compare_debug < 0)
+ {
+ compare_debug = 0;
+ gcc_assert (!compare_debug_opt);
+ }
+
+ /* 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. */
+
+ /* 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);
+#endif
+ add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
+ PREFIX_PRIORITY_LAST, 1, 0);
+ }
+
+ gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix));
+ tooldir_prefix2 = concat (tooldir_base_prefix, spec_machine,
+ dir_separator_str, 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_prefix2, NULL);
+ free (tooldir_prefix2);
+
+ add_prefix (&exec_prefixes,
+ concat (tooldir_prefix, "bin", dir_separator_str, NULL),
+ "BINUTILS", PREFIX_PRIORITY_LAST, 0, 0);
+ add_prefix (&startfile_prefixes,
+ concat (tooldir_prefix, "lib", dir_separator_str, NULL),
+ "BINUTILS", PREFIX_PRIORITY_LAST, 0, 1);
+ free (tooldir_prefix);
+
+#if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
+ /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
+ then consider it to relocate with the rest of the GCC installation
+ if GCC_EXEC_PREFIX is set.
+ ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
+ if (target_system_root && !target_system_root_changed && gcc_exec_prefix)
+ {
+ char *tmp_prefix = get_relative_prefix (decoded_options[0].arg,
+ standard_bindir_prefix,
+ target_system_root);
+ if (tmp_prefix && access_check (tmp_prefix, F_OK) == 0)
+ {
+ target_system_root = tmp_prefix;
+ target_system_root_changed = 1;
+ }
+ }
+#endif
+
+ /* More prefixes are enabled in main, after we read the specs file
+ and determine whether this is cross-compilation or not. */
+
+ if (n_infiles == last_language_n_infiles && spec_lang != 0)
+ warning (0, "%<-x %s%> after last input file has no effect", spec_lang);
+
+ /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG
+ environment variable. */
+ if (compare_debug == 2 || compare_debug == 3)
+ {
+ const char *opt = concat ("-fcompare-debug=", compare_debug_opt, NULL);
+ save_switch (opt, 0, NULL, false, true);
+ compare_debug = 1;
+ }
+
+ /* Ensure we only invoke each subprocess once. */
+ if (print_subprocess_help || print_help_list || print_version)
+ {
+ n_infiles = 0;
+
+ /* Create a dummy input file, so that we can pass
+ the help option on to the various sub-processes. */
+ add_infile ("help-dummy", "c");
+ }
+
+ alloc_switch ();
+ switches[n_switches].part1 = 0;
+ alloc_infile ();
+ infiles[n_infiles].name = 0;
+}
+
+/* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
+ and place that in the environment. */
+
+static void
+set_collect_gcc_options (void)
+{
+ int i;
+ 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++)
+ {
+ const char *const *args;
+ const char *p, *q;
+ if (!first_time)
+ obstack_grow (&collect_obstack, " ", 1);
+
+ first_time = FALSE;
+
+ /* Ignore elided switches. */
+ if ((switches[i].live_cond
+ & (SWITCH_IGNORE | SWITCH_KEEP_FOR_GCC))
+ == SWITCH_IGNORE)
+ continue;
+
+ obstack_grow (&collect_obstack, "'-", 2);
+ q = switches[i].part1;
+ while ((p = strchr (q, '\'')))
+ {
+ obstack_grow (&collect_obstack, q, p - q);
+ obstack_grow (&collect_obstack, "'\\''", 4);
+ q = ++p;
+ }
+ obstack_grow (&collect_obstack, q, strlen (q));
+ obstack_grow (&collect_obstack, "'", 1);
+
+ for (args = switches[i].args; args && *args; args++)
+ {
+ obstack_grow (&collect_obstack, " '", 2);
+ q = *args;
+ while ((p = strchr (q, '\'')))
+ {
+ obstack_grow (&collect_obstack, q, p - q);
+ obstack_grow (&collect_obstack, "'\\''", 4);
+ q = ++p;
+ }
+ obstack_grow (&collect_obstack, q, strlen (q));
+ obstack_grow (&collect_obstack, "'", 1);
+ }
+ }
+ obstack_grow (&collect_obstack, "\0", 1);
+ xputenv (XOBFINISH (&collect_obstack, char *));
+}
+
+/* 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. */
+
+static const char *gcc_input_filename;
+static int input_file_number;
+size_t input_filename_length;
+static int basename_length;
+static int suffixed_basename_length;
+static const char *input_basename;
+static const char *input_suffix;
+#ifndef HOST_LACKS_INODE_NUMBERS
+static struct stat input_stat;
+#endif
+static int input_stat_set;
+
+/* The compiler used to process the current input file. */
+static struct compiler *input_file_compiler;
+
+/* 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 %T has been seen; the next arg to be terminated
+ is the name of a linker script and we should try all of the
+ standard search dirs for it. If it is found insert a --script
+ command line switch and then substitute the full path in place,
+ otherwise generate an error message. */
+static int this_is_linker_script;
+
+/* Nonzero means that the input of this command is coming from a pipe. */
+static int input_from_pipe;
+
+/* Nonnull means substitute this for any suffix when outputting a switches
+ arguments. */
+static const char *suffix_subst;
+
+/* If there is an argument being accumulated, terminate it and store it. */
+
+static void
+end_going_arg (void)
+{
+ if (arg_going)
+ {
+ const char *string;
+
+ obstack_1grow (&obstack, 0);
+ string = XOBFINISH (&obstack, const char *);
+ if (this_is_library_file)
+ string = find_file (string);
+ if (this_is_linker_script)
+ {
+ char * full_script_path = find_a_file (&startfile_prefixes, string, R_OK, true);
+
+ if (full_script_path == NULL)
+ {
+ error ("unable to locate default linker script %qs in the library search paths", string);
+ /* Script was not found on search path. */
+ return;
+ }
+ store_arg ("--script", false, false);
+ string = full_script_path;
+ }
+ store_arg (string, delete_this_arg, this_is_output_file);
+ if (this_is_output_file)
+ outfiles[input_file_number] = string;
+ arg_going = 0;
+ }
+}
+
+
+/* Parse the WRAPPER string which is a comma separated list of the command line
+ and insert them into the beginning of argbuf. */
+
+static void
+insert_wrapper (const char *wrapper)
+{
+ int n = 0;
+ int i;
+ char *buf = xstrdup (wrapper);
+ char *p = buf;
+ unsigned int old_length = argbuf.length ();
+
+ do
+ {
+ n++;
+ while (*p == ',')
+ p++;
+ }
+ while ((p = strchr (p, ',')) != NULL);
+
+ argbuf.safe_grow (old_length + n);
+ memmove (argbuf.address () + n,
+ argbuf.address (),
+ old_length * sizeof (const_char_p));
+
+ i = 0;
+ p = buf;
+ do
+ {
+ while (*p == ',')
+ {
+ *p = 0;
+ p++;
+ }
+ argbuf[i] = p;
+ i++;
+ }
+ while ((p = strchr (p, ',')) != NULL);
+ gcc_assert (i == n);
+}
+
+/* Process the spec SPEC and run the commands specified therein.
+ Returns 0 if the spec is successfully processed; -1 if failed. */
+
+int
+do_spec (const char *spec)
+{
+ int value;
+
+ value = do_spec_2 (spec);
+
+ /* Force out any unfinished command.
+ If -pipe, this forces out the last command if it ended in `|'. */
+ if (value == 0)
+ {
+ if (argbuf.length () > 0
+ && !strcmp (argbuf.last (), "|"))
+ argbuf.pop ();
+
+ set_collect_gcc_options ();
+
+ if (argbuf.length () > 0)
+ value = execute ();
+ }
+
+ return value;
+}
+
+static int
+do_spec_2 (const char *spec)
+{
+ int result;
+
+ clear_args ();
+ arg_going = 0;
+ delete_this_arg = 0;
+ this_is_output_file = 0;
+ this_is_library_file = 0;
+ this_is_linker_script = 0;
+ input_from_pipe = 0;
+ suffix_subst = NULL;
+
+ result = do_spec_1 (spec, 0, NULL);
+
+ end_going_arg ();
+
+ return result;
+}
+
+
+/* Process the given spec string and add any new options to the end
+ of the switches/n_switches array. */
+
+static void
+do_option_spec (const char *name, const char *spec)
+{
+ unsigned int i, value_count, value_len;
+ const char *p, *q, *value;
+ char *tmp_spec, *tmp_spec_p;
+
+ if (configure_default_options[0].name == NULL)
+ return;
+
+ for (i = 0; i < ARRAY_SIZE (configure_default_options); i++)
+ if (strcmp (configure_default_options[i].name, name) == 0)
+ break;
+ if (i == ARRAY_SIZE (configure_default_options))
+ return;
+
+ value = configure_default_options[i].value;
+ value_len = strlen (value);
+
+ /* Compute the size of the final spec. */
+ value_count = 0;
+ p = spec;
+ while ((p = strstr (p, "%(VALUE)")) != NULL)
+ {
+ p ++;
+ value_count ++;
+ }
+
+ /* Replace each %(VALUE) by the specified value. */
+ tmp_spec = (char *) alloca (strlen (spec) + 1
+ + value_count * (value_len - strlen ("%(VALUE)")));
+ tmp_spec_p = tmp_spec;
+ q = spec;
+ while ((p = strstr (q, "%(VALUE)")) != NULL)
+ {
+ memcpy (tmp_spec_p, q, p - q);
+ tmp_spec_p = tmp_spec_p + (p - q);
+ memcpy (tmp_spec_p, value, value_len);
+ tmp_spec_p += value_len;
+ q = p + strlen ("%(VALUE)");
+ }
+ strcpy (tmp_spec_p, q);
+
+ do_self_spec (tmp_spec);
+}
+
+/* Process the given spec string and add any new options to the end
+ of the switches/n_switches array. */
+
+static void
+do_self_spec (const char *spec)
+{
+ int i;
+
+ do_spec_2 (spec);
+ do_spec_1 (" ", 0, NULL);
+
+ /* Mark %<S switches processed by do_self_spec to be ignored permanently.
+ do_self_specs adds the replacements to switches array, so it shouldn't
+ be processed afterwards. */
+ for (i = 0; i < n_switches; i++)
+ if ((switches[i].live_cond & SWITCH_IGNORE))
+ switches[i].live_cond |= SWITCH_IGNORE_PERMANENTLY;
+
+ if (argbuf.length () > 0)
+ {
+ const char **argbuf_copy;
+ struct cl_decoded_option *decoded_options;
+ struct cl_option_handlers handlers;
+ unsigned int decoded_options_count;
+ unsigned int j;
+
+ /* Create a copy of argbuf with a dummy argv[0] entry for
+ decode_cmdline_options_to_array. */
+ argbuf_copy = XNEWVEC (const char *,
+ argbuf.length () + 1);
+ argbuf_copy[0] = "";
+ memcpy (argbuf_copy + 1, argbuf.address (),
+ argbuf.length () * sizeof (const char *));
+
+ decode_cmdline_options_to_array (argbuf.length () + 1,
+ argbuf_copy,
+ CL_DRIVER, &decoded_options,
+ &decoded_options_count);
+ free (argbuf_copy);
+
+ set_option_handlers (&handlers);
+
+ for (j = 1; j < decoded_options_count; j++)
+ {
+ switch (decoded_options[j].opt_index)
+ {
+ case OPT_SPECIAL_input_file:
+ /* Specs should only generate options, not input
+ files. */
+ if (strcmp (decoded_options[j].arg, "-") != 0)
+ fatal_error ("switch %qs does not start with %<-%>",
+ decoded_options[j].arg);
+ else
+ fatal_error ("spec-generated switch is just %<-%>");
+ break;
+
+ case OPT_fcompare_debug_second:
+ case OPT_fcompare_debug:
+ case OPT_fcompare_debug_:
+ case OPT_o:
+ /* Avoid duplicate processing of some options from
+ compare-debug specs; just save them here. */
+ save_switch (decoded_options[j].canonical_option[0],
+ (decoded_options[j].canonical_option_num_elements
+ - 1),
+ &decoded_options[j].canonical_option[1], false, true);
+ break;
+
+ default:
+ read_cmdline_option (&global_options, &global_options_set,
+ decoded_options + j, UNKNOWN_LOCATION,
+ CL_DRIVER, &handlers, global_dc);
+ break;
+ }
+ }
+
+ alloc_switch ();
+ switches[n_switches].part1 = 0;
+ }
+}
+
+/* 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)
+{
+ struct spec_path_info *info = (struct spec_path_info *) data;
+ size_t len = 0;
+ char save = 0;
+
+ if (info->omit_relative && !IS_ABSOLUTE_PATH (path))
+ return NULL;
+
+ if (info->append_len != 0)
+ {
+ len = strlen (path);
+ memcpy (path + len, info->append, info->append_len + 1);
+ }
+
+ if (!is_directory (path, true))
+ return NULL;
+
+ do_spec_1 (info->option, 1, NULL);
+ if (info->separate_options)
+ do_spec_1 (" ", 0, NULL);
+
+ if (info->append_len == 0)
+ {
+ 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;
+}
+
+/* Create a temporary FILE with the contents of ARGV. Add @FILE to the
+ argument list. */
+
+static void
+create_at_file (char **argv)
+{
+ char *temp_file = make_temp_file ("");
+ char *at_argument = concat ("@", temp_file, NULL);
+ FILE *f = fopen (temp_file, "w");
+ int status;
+
+ if (f == NULL)
+ fatal_error ("could not open temporary response file %s",
+ temp_file);
+
+ status = writeargv (argv, f);
+
+ if (status)
+ fatal_error ("could not write to temporary response file %s",
+ temp_file);
+
+ status = fclose (f);
+
+ if (EOF == status)
+ fatal_error ("could not close temporary response file %s",
+ temp_file);
+
+ store_arg (at_argument, 0, 0);
+
+ record_temp_file (temp_file, !save_temps_flag, !save_temps_flag);
+}
+
+/* True if we should compile INFILE. */
+
+static bool
+compile_input_file_p (struct infile *infile)
+{
+ if ((!infile->language) || (infile->language[0] != '*'))
+ if (infile->incompiler == input_file_compiler)
+ return true;
+ return false;
+}
+
+/* Process each member of VEC as a spec. */
+
+static void
+do_specs_vec (vec<char_p> vec)
+{
+ unsigned ix;
+ char *opt;
+
+ FOR_EACH_VEC_ELT (vec, ix, opt)
+ {
+ do_spec_1 (opt, 1, NULL);
+ /* Make each accumulated option a separate argument. */
+ do_spec_1 (" ", 0, NULL);
+ }
+}
+
+/* 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 (const char *spec, int inswitch, const char *soft_matched_part)
+{
+ const char *p = spec;
+ int c;
+ int i;
+ int value;
+
+ /* If it's an empty string argument to a switch, keep it as is. */
+ if (inswitch && !*p)
+ arg_going = 1;
+
+ 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_going_arg ();
+
+ if (argbuf.length () > 0
+ && !strcmp (argbuf.last (), "|"))
+ {
+ /* 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 (use_pipes)
+ {
+ input_from_pipe = 1;
+ break;
+ }
+ else
+ argbuf.pop ();
+ }
+
+ set_collect_gcc_options ();
+
+ if (argbuf.length () > 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;
+ this_is_linker_script = 0;
+ input_from_pipe = 0;
+ break;
+
+ case '|':
+ end_going_arg ();
+
+ /* Use pipe */
+ obstack_1grow (&obstack, c);
+ arg_going = 1;
+ break;
+
+ case '\t':
+ case ' ':
+ end_going_arg ();
+
+ /* Reinitialize for a new argument. */
+ delete_this_arg = 0;
+ this_is_output_file = 0;
+ this_is_library_file = 0;
+ this_is_linker_script = 0;
+ break;
+
+ case '%':
+ switch (c = *p++)
+ {
+ case 0:
+ fatal_error ("spec %qs invalid", spec);
+
+ case 'b':
+ if (save_temps_length)
+ obstack_grow (&obstack, save_temps_prefix, save_temps_length);
+ else
+ obstack_grow (&obstack, input_basename, basename_length);
+ if (compare_debug < 0)
+ obstack_grow (&obstack, ".gk", 3);
+ arg_going = 1;
+ break;
+
+ case 'B':
+ if (save_temps_length)
+ obstack_grow (&obstack, save_temps_prefix, save_temps_length);
+ else
+ obstack_grow (&obstack, input_basename, suffixed_basename_length);
+ if (compare_debug < 0)
+ obstack_grow (&obstack, ".gk", 3);
+ 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 spec_path_info info;
+
+ info.option = "-L";
+ info.append_len = 0;
+#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. */
+ info.omit_relative = true;
+#else
+ info.omit_relative = false;
+#endif
+ info.separate_options = false;
+
+ for_each_path (&startfile_prefixes, true, 0, spec_path, &info);
+ }
+ 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 ("%s", _(buf));
+ return -1;
+ }
+ break;
+ case 'n':
+ /* %nfoo means report a notice with `foo' on stderr. */
+ {
+ 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;
+ inform (0, "%s", _(buf));
+ if (*p)
+ p++;
+ }
+ break;
+
+ case 'j':
+ {
+ struct stat st;
+
+ /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
+ defined, and it is not a directory, and it is
+ writable, use it. Otherwise, treat this like any
+ other temporary file. */
+
+ if ((!save_temps_flag)
+ && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
+ && (access (HOST_BIT_BUCKET, W_OK) == 0))
+ {
+ obstack_grow (&obstack, HOST_BIT_BUCKET,
+ strlen (HOST_BIT_BUCKET));
+ delete_this_arg = 0;
+ arg_going = 1;
+ break;
+ }
+ }
+ goto create_temp_file;
+ case '|':
+ if (use_pipes)
+ {
+ obstack_1grow (&obstack, '-');
+ delete_this_arg = 0;
+ arg_going = 1;
+
+ /* consume suffix */
+ while (*p == '.' || ISALNUM ((unsigned char) *p))
+ p++;
+ if (p[0] == '%' && p[1] == 'O')
+ p += 2;
+
+ break;
+ }
+ goto create_temp_file;
+ case 'm':
+ if (use_pipes)
+ {
+ /* consume suffix */
+ while (*p == '.' || ISALNUM ((unsigned char) *p))
+ p++;
+ if (p[0] == '%' && p[1] == 'O')
+ p += 2;
+
+ break;
+ }
+ goto create_temp_file;
+ case 'g':
+ case 'u':
+ case 'U':
+ create_temp_file:
+ {
+ struct temp_name *t;
+ int suffix_length;
+ const char *suffix = p;
+ char *saved_suffix = NULL;
+
+ while (*p == '.' || ISALNUM ((unsigned char) *p))
+ p++;
+ suffix_length = p - suffix;
+ if (p[0] == '%' && p[1] == 'O')
+ {
+ p += 2;
+ /* We don't support extra suffix characters after %O. */
+ if (*p == '.' || ISALNUM ((unsigned char) *p))
+ fatal_error ("spec %qs has invalid %<%%0%c%>", spec, *p);
+ if (suffix_length == 0)
+ suffix = TARGET_OBJECT_SUFFIX;
+ else
+ {
+ saved_suffix
+ = XNEWVEC (char, suffix_length
+ + strlen (TARGET_OBJECT_SUFFIX));
+ strncpy (saved_suffix, suffix, suffix_length);
+ strcpy (saved_suffix + suffix_length,
+ TARGET_OBJECT_SUFFIX);
+ }
+ suffix_length += strlen (TARGET_OBJECT_SUFFIX);
+ }
+
+ if (compare_debug < 0)
+ {
+ suffix = concat (".gk", suffix, NULL);
+ suffix_length += 3;
+ }
+
+ /* If -save-temps=obj and -o were specified, use that for the
+ temp file. */
+ if (save_temps_length)
+ {
+ char *tmp;
+ temp_filename_length
+ = save_temps_length + suffix_length + 1;
+ tmp = (char *) alloca (temp_filename_length);
+ memcpy (tmp, save_temps_prefix, save_temps_length);
+ memcpy (tmp + save_temps_length, suffix, suffix_length);
+ tmp[save_temps_length + suffix_length] = '\0';
+ temp_filename = save_string (tmp, save_temps_length
+ + suffix_length);
+ obstack_grow (&obstack, temp_filename,
+ temp_filename_length);
+ arg_going = 1;
+ delete_this_arg = 0;
+ break;
+ }
+
+ /* If the gcc_input_filename has the same suffix specified
+ for the %g, %u, or %U, and -save-temps is specified,
+ we could end up using that file as an intermediate
+ thus clobbering the user's source file (.e.g.,
+ gcc -save-temps foo.s would clobber foo.s with the
+ output of cpp0). So check for this condition and
+ generate a temp file as the intermediate. */
+
+ if (save_temps_flag)
+ {
+ char *tmp;
+ temp_filename_length = basename_length + suffix_length + 1;
+ tmp = (char *) alloca (temp_filename_length);
+ memcpy (tmp, input_basename, basename_length);
+ memcpy (tmp + basename_length, suffix, suffix_length);
+ tmp[basename_length + suffix_length] = '\0';
+ temp_filename = tmp;
+
+ if (filename_cmp (temp_filename, gcc_input_filename) != 0)
+ {
+#ifndef HOST_LACKS_INODE_NUMBERS
+ struct stat st_temp;
+
+ /* Note, set_input() resets input_stat_set to 0. */
+ if (input_stat_set == 0)
+ {
+ input_stat_set = stat (gcc_input_filename,
+ &input_stat);
+ if (input_stat_set >= 0)
+ input_stat_set = 1;
+ }
+
+ /* If we have the stat for the gcc_input_filename
+ and we can do the stat for the temp_filename
+ then the they could still refer to the same
+ file if st_dev/st_ino's are the same. */
+ if (input_stat_set != 1
+ || stat (temp_filename, &st_temp) < 0
+ || input_stat.st_dev != st_temp.st_dev
+ || input_stat.st_ino != st_temp.st_ino)
+#else
+ /* Just compare canonical pathnames. */
+ char* input_realname = lrealpath (gcc_input_filename);
+ char* temp_realname = lrealpath (temp_filename);
+ bool files_differ = filename_cmp (input_realname, temp_realname);
+ free (input_realname);
+ free (temp_realname);
+ if (files_differ)
+#endif
+ {
+ temp_filename = save_string (temp_filename,
+ temp_filename_length + 1);
+ obstack_grow (&obstack, temp_filename,
+ temp_filename_length);
+ arg_going = 1;
+ delete_this_arg = 0;
+ break;
+ }
+ }
+ }
+
+ /* 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 == 'u' || c == 'U' || c == 'j'))
+ break;
+
+ /* Make a new association if needed. %u and %j
+ require one. */
+ if (t == 0 || c == 'u' || c == 'j')
+ {
+ if (t == 0)
+ {
+ t = XNEW (struct temp_name);
+ t->next = temp_names;
+ temp_names = t;
+ }
+ t->length = suffix_length;
+ if (saved_suffix)
+ {
+ t->suffix = saved_suffix;
+ saved_suffix = NULL;
+ }
+ else
+ t->suffix = save_string (suffix, suffix_length);
+ t->unique = (c == 'u' || c == 'U' || c == 'j');
+ temp_filename = make_temp_file (t->suffix);
+ temp_filename_length = strlen (temp_filename);
+ t->filename = temp_filename;
+ t->filename_length = temp_filename_length;
+ }
+
+ free (saved_suffix);
+
+ obstack_grow (&obstack, t->filename, t->filename_length);
+ delete_this_arg = 1;
+ }
+ arg_going = 1;
+ break;
+
+ case 'i':
+ if (combine_inputs)
+ {
+ if (at_file_supplied)
+ {
+ /* We are going to expand `%i' 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 **argv;
+ int n_files = 0;
+ int j;
+
+ for (i = 0; i < n_infiles; i++)
+ if (compile_input_file_p (&infiles[i]))
+ n_files++;
+
+ argv = (char **) alloca (sizeof (char *) * (n_files + 1));
+
+ /* Copy the strings over. */
+ for (i = 0, j = 0; i < n_infiles; i++)
+ if (compile_input_file_p (&infiles[i]))
+ {
+ argv[j] = CONST_CAST (char *, infiles[i].name);
+ infiles[i].compiled = true;
+ j++;
+ }
+ argv[j] = NULL;
+
+ create_at_file (argv);
+ }
+ else
+ for (i = 0; (int) i < n_infiles; i++)
+ if (compile_input_file_p (&infiles[i]))
+ {
+ store_arg (infiles[i].name, 0, 0);
+ infiles[i].compiled = true;
+ }
+ }
+ else
+ {
+ obstack_grow (&obstack, gcc_input_filename,
+ input_filename_length);
+ arg_going = 1;
+ }
+ break;
+
+ case 'I':
+ {
+ 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 (multiarch_dir)
+ {
+ do_spec_1 ("-imultiarch", 1, NULL);
+ /* Make this a separate argument. */
+ do_spec_1 (" ", 0, NULL);
+ do_spec_1 (multiarch_dir, 1, NULL);
+ do_spec_1 (" ", 0, NULL);
+ }
+
+ if (gcc_exec_prefix)
+ {
+ do_spec_1 ("-iprefix", 1, NULL);
+ /* Make this a separate argument. */
+ do_spec_1 (" ", 0, NULL);
+ do_spec_1 (gcc_exec_prefix, 1, NULL);
+ do_spec_1 (" ", 0, NULL);
+ }
+
+ if (target_system_root_changed ||
+ (target_system_root && target_sysroot_hdrs_suffix))
+ {
+ do_spec_1 ("-isysroot", 1, NULL);
+ /* Make this a separate argument. */
+ do_spec_1 (" ", 0, NULL);
+ do_spec_1 (target_system_root, 1, NULL);
+ if (target_sysroot_hdrs_suffix)
+ do_spec_1 (target_sysroot_hdrs_suffix, 1, NULL);
+ do_spec_1 (" ", 0, NULL);
+ }
+
+ 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;
+
+ case 'o':
+ {
+ int max = n_infiles;
+ max += lang_specific_extra_outfiles;
+
+ 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 **argv;
+ int n_files, j;
+
+ /* 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 = (char **) alloca (sizeof (char *) * (n_files + 1));
+
+ /* Copy the strings over. */
+ for (i = 0, j = 0; i < max; i++)
+ if (outfiles[i])
+ {
+ argv[j] = CONST_CAST (char *, outfiles[i]);
+ j++;
+ }
+ argv[j] = NULL;
+
+ create_at_file (argv);
+ }
+ else
+ for (i = 0; i < max; i++)
+ if (outfiles[i])
+ store_arg (outfiles[i], 0, 0);
+ break;
+ }
+
+ case 'O':
+ obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
+ arg_going = 1;
+ break;
+
+ case 's':
+ this_is_library_file = 1;
+ break;
+
+ case 'T':
+ this_is_linker_script = 1;
+ break;
+
+ case 'V':
+ outfiles[input_file_number] = NULL;
+ break;
+
+ case 'w':
+ this_is_output_file = 1;
+ break;
+
+ case 'W':
+ {
+ unsigned int cur_index = argbuf.length ();
+ /* Handle the {...} following the %W. */
+ if (*p != '{')
+ fatal_error ("spec %qs has invalid %<%%W%c%>", spec, *p);
+ p = handle_braces (p + 1);
+ if (p == 0)
+ return -1;
+ end_going_arg ();
+ /* If any args were output, mark the last one for deletion
+ on failure. */
+ if (argbuf.length () != cur_index)
+ record_temp_file (argbuf.last (), 0, 1);
+ break;
+ }
+
+ /* %x{OPTION} records OPTION for %X to output. */
+ case 'x':
+ {
+ const char *p1 = p;
+ char *string;
+ char *opt;
+ unsigned ix;
+
+ /* Skip past the option value and make a copy. */
+ if (*p != '{')
+ fatal_error ("spec %qs has invalid %<%%x%c%>", spec, *p);
+ while (*p++ != '}')
+ ;
+ string = save_string (p1 + 1, p - p1 - 2);
+
+ /* See if we already recorded this option. */
+ FOR_EACH_VEC_ELT (linker_options, ix, opt)
+ if (! strcmp (string, opt))
+ {
+ free (string);
+ return 0;
+ }
+
+ /* This option is new; add it. */
+ add_linker_option (string, strlen (string));
+ free (string);
+ }
+ break;
+
+ /* Dump out the options accumulated previously using %x. */
+ case 'X':
+ do_specs_vec (linker_options);
+ break;
+
+ /* Dump out the options accumulated previously using -Wa,. */
+ case 'Y':
+ do_specs_vec (assembler_options);
+ break;
+
+ /* Dump out the options accumulated previously using -Wp,. */
+ case 'Z':
+ do_specs_vec (preprocessor_options);
+ break;
+
+ /* Here are digits and numbers that just process
+ a certain constant string as a spec. */
+
+ case '1':
+ value = do_spec_1 (cc1_spec, 0, NULL);
+ if (value != 0)
+ return value;
+ break;
+
+ case '2':
+ value = do_spec_1 (cc1plus_spec, 0, NULL);
+ if (value != 0)
+ return value;
+ break;
+
+ case 'a':
+ value = do_spec_1 (asm_spec, 0, NULL);
+ if (value != 0)
+ return value;
+ break;
+
+ case 'A':
+ value = do_spec_1 (asm_final_spec, 0, NULL);
+ if (value != 0)
+ return value;
+ break;
+
+ case 'C':
+ {
+ const char *const spec
+ = (input_file_compiler->cpp_spec
+ ? input_file_compiler->cpp_spec
+ : cpp_spec);
+ value = do_spec_1 (spec, 0, NULL);
+ if (value != 0)
+ return value;
+ }
+ break;
+
+ case 'E':
+ value = do_spec_1 (endfile_spec, 0, NULL);
+ if (value != 0)
+ return value;
+ break;
+
+ case 'l':
+ value = do_spec_1 (link_spec, 0, NULL);
+ if (value != 0)
+ return value;
+ break;
+
+ case 'L':
+ value = do_spec_1 (lib_spec, 0, NULL);
+ if (value != 0)
+ return value;
+ break;
+
+ case 'M':
+ if (multilib_os_dir == NULL)
+ obstack_1grow (&obstack, '.');
+ else
+ obstack_grow (&obstack, multilib_os_dir,
+ strlen (multilib_os_dir));
+ break;
+
+ case 'G':
+ value = do_spec_1 (libgcc_spec, 0, NULL);
+ if (value != 0)
+ return value;
+ break;
+
+ case 'R':
+ /* We assume there is a directory
+ separator at the end of this string. */
+ if (target_system_root)
+ {
+ obstack_grow (&obstack, target_system_root,
+ strlen (target_system_root));
+ if (target_sysroot_suffix)
+ obstack_grow (&obstack, target_sysroot_suffix,
+ strlen (target_sysroot_suffix));
+ }
+ break;
+
+ case 'S':
+ value = do_spec_1 (startfile_spec, 0, NULL);
+ if (value != 0)
+ return value;
+ break;
+
+ /* Here we define characters other than letters and digits. */
+
+ case '{':
+ p = handle_braces (p);
+ if (p == 0)
+ return -1;
+ break;
+
+ case ':':
+ p = handle_spec_function (p, NULL);
+ if (p == 0)
+ return -1;
+ break;
+
+ case '%':
+ obstack_1grow (&obstack, '%');
+ break;
+
+ case '.':
+ {
+ unsigned len = 0;
+
+ while (p[len] && p[len] != ' ' && p[len] != '%')
+ len++;
+ suffix_subst = save_string (p - 1, len + 1);
+ p += len;
+ }
+ break;
+
+ /* Henceforth ignore the option(s) matching the pattern
+ after the %<. */
+ case '<':
+ case '>':
+ {
+ unsigned len = 0;
+ int have_wildcard = 0;
+ int i;
+ int switch_option;
+
+ if (c == '>')
+ switch_option = SWITCH_IGNORE | SWITCH_KEEP_FOR_GCC;
+ else
+ switch_option = SWITCH_IGNORE;
+
+ while (p[len] && p[len] != ' ' && p[len] != '\t')
+ len++;
+
+ if (p[len-1] == '*')
+ have_wildcard = 1;
+
+ for (i = 0; i < n_switches; i++)
+ if (!strncmp (switches[i].part1, p, len - have_wildcard)
+ && (have_wildcard || switches[i].part1[len] == '\0'))
+ {
+ switches[i].live_cond |= switch_option;
+ /* User switch be validated from validate_all_switches.
+ when the definition is seen from the spec file.
+ If not defined anywhere, will be rejected. */
+ if (switches[i].known)
+ switches[i].validated = true;
+ }
+
+ p += len;
+ }
+ break;
+
+ case '*':
+ if (soft_matched_part)
+ {
+ if (soft_matched_part[0])
+ do_spec_1 (soft_matched_part, 1, NULL);
+ /* Only insert a space after the substitution if it is at the
+ end of the current sequence. So if:
+
+ "%{foo=*:bar%*}%{foo=*:one%*two}"
+
+ matches -foo=hello then it will produce:
+
+ barhello onehellotwo
+ */
+ if (*p == 0 || *p == '}')
+ do_spec_1 (" ", 0, NULL);
+ }
+ else
+ /* Catch the case where a spec string contains something like
+ '%{foo:%*}'. i.e. there is no * in the pattern on the left
+ hand side of the :. */
+ error ("spec failure: %<%%*%> has not been initialized by pattern match");
+ 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. */
+ 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++;
+
+ /* 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
+ fnotice (stderr, "Processing spec (%s), which is '%s'\n",
+ sl->name, name);
+#endif
+ break;
+ }
+
+ if (sl)
+ {
+ value = do_spec_1 (name, 0, NULL);
+ if (value != 0)
+ return value;
+ }
+
+ /* Discard the closing paren. */
+ if (*p)
+ p++;
+ }
+ break;
+
+ default:
+ error ("spec failure: unrecognized spec option %qc", c);
+ break;
+ }
+ 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;
+ }
+
+ /* End of string. If we are processing a spec function, we need to
+ end any pending argument. */
+ if (processing_spec_function)
+ end_going_arg ();
+
+ return 0;
+}
+
+/* Look up a spec function. */
+
+static const struct spec_function *
+lookup_spec_function (const char *name)
+{
+ const struct spec_function *sf;
+
+ for (sf = static_spec_functions; sf->name != NULL; sf++)
+ if (strcmp (sf->name, name) == 0)
+ return sf;
+
+ return NULL;
+}
+
+/* Evaluate a spec function. */
+
+static const char *
+eval_spec_function (const char *func, const char *args)
+{
+ const struct spec_function *sf;
+ const char *funcval;
+
+ /* Saved spec processing context. */
+ vec<const_char_p> save_argbuf;
+
+ int save_arg_going;
+ int save_delete_this_arg;
+ int save_this_is_output_file;
+ int save_this_is_library_file;
+ int save_input_from_pipe;
+ int save_this_is_linker_script;
+ const char *save_suffix_subst;
+
+ int save_growing_size;
+ void *save_growing_value = NULL;
+
+ sf = lookup_spec_function (func);
+ if (sf == NULL)
+ fatal_error ("unknown spec function %qs", func);
+
+ /* Push the spec processing context. */
+ save_argbuf = argbuf;
+
+ save_arg_going = arg_going;
+ save_delete_this_arg = delete_this_arg;
+ save_this_is_output_file = this_is_output_file;
+ save_this_is_library_file = this_is_library_file;
+ save_this_is_linker_script = this_is_linker_script;
+ save_input_from_pipe = input_from_pipe;
+ save_suffix_subst = suffix_subst;
+
+ /* If we have some object growing now, finalize it so the args and function
+ eval proceed from a cleared context. This is needed to prevent the first
+ constructed arg from mistakenly including the growing value. We'll push
+ this value back on the obstack once the function evaluation is done, to
+ restore a consistent processing context for our caller. This is fine as
+ the address of growing objects isn't guaranteed to remain stable until
+ they are finalized, and we expect this situation to be rare enough for
+ the extra copy not to be an issue. */
+ save_growing_size = obstack_object_size (&obstack);
+ if (save_growing_size > 0)
+ save_growing_value = obstack_finish (&obstack);
+
+ /* Create a new spec processing context, and build the function
+ arguments. */
+
+ alloc_args ();
+ if (do_spec_2 (args) < 0)
+ fatal_error ("error in args to spec function %qs", func);
+
+ /* argbuf_index is an index for the next argument to be inserted, and
+ so contains the count of the args already inserted. */
+
+ funcval = (*sf->func) (argbuf.length (),
+ argbuf.address ());
+
+ /* Pop the spec processing context. */
+ argbuf.release ();
+ argbuf = save_argbuf;
+
+ arg_going = save_arg_going;
+ delete_this_arg = save_delete_this_arg;
+ this_is_output_file = save_this_is_output_file;
+ this_is_library_file = save_this_is_library_file;
+ this_is_linker_script = save_this_is_linker_script;
+ input_from_pipe = save_input_from_pipe;
+ suffix_subst = save_suffix_subst;
+
+ if (save_growing_size > 0)
+ obstack_grow (&obstack, save_growing_value, save_growing_size);
+
+ return funcval;
+}
+
+/* Handle a spec function call of the form:
+
+ %:function(args)
+
+ ARGS is processed as a spec in a separate context and split into an
+ argument vector in the normal fashion. The function returns a string
+ containing a spec which we then process in the caller's context, or
+ NULL if no processing is required.
+
+ If RETVAL_NONNULL is not NULL, then store a bool whether function
+ returned non-NULL. */
+
+static const char *
+handle_spec_function (const char *p, bool *retval_nonnull)
+{
+ char *func, *args;
+ const char *endp, *funcval;
+ int count;
+
+ processing_spec_function++;
+
+ /* Get the function name. */
+ for (endp = p; *endp != '\0'; endp++)
+ {
+ if (*endp == '(') /* ) */
+ break;
+ /* Only allow [A-Za-z0-9], -, and _ in function names. */
+ if (!ISALNUM (*endp) && !(*endp == '-' || *endp == '_'))
+ fatal_error ("malformed spec function name");
+ }
+ if (*endp != '(') /* ) */
+ fatal_error ("no arguments for spec function");
+ func = save_string (p, endp - p);
+ p = ++endp;
+
+ /* Get the arguments. */
+ for (count = 0; *endp != '\0'; endp++)
+ {
+ /* ( */
+ if (*endp == ')')
+ {
+ if (count == 0)
+ break;
+ count--;
+ }
+ else if (*endp == '(') /* ) */
+ count++;
+ }
+ /* ( */
+ if (*endp != ')')
+ fatal_error ("malformed spec function arguments");
+ args = save_string (p, endp - p);
+ p = ++endp;
+
+ /* p now points to just past the end of the spec function expression. */
+
+ funcval = eval_spec_function (func, args);
+ if (funcval != NULL && do_spec_1 (funcval, 0, NULL) < 0)
+ p = NULL;
+ if (retval_nonnull)
+ *retval_nonnull = funcval != NULL;
+
+ free (func);
+ free (args);
+
+ processing_spec_function--;
+
+ return p;
+}
+
+/* Inline subroutine of handle_braces. Returns true if the current
+ input suffix matches the atom bracketed by ATOM and END_ATOM. */
+static inline bool
+input_suffix_matches (const char *atom, const char *end_atom)
+{
+ return (input_suffix
+ && !strncmp (input_suffix, atom, end_atom - atom)
+ && input_suffix[end_atom - atom] == '\0');
+}
+
+/* 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 bool
+switch_matches (const char *atom, const char *end_atom, int starred)
+{
+ int i;
+ int len = end_atom - atom;
+ int plen = starred ? len : -1;
+
+ for (i = 0; i < n_switches; i++)
+ if (!strncmp (switches[i].part1, atom, len)
+ && (starred || switches[i].part1[len] == '\0')
+ && check_live_switch (i, plen))
+ return true;
+
+ /* Check if a switch with separated form matching the atom.
+ We check -D and -U switches. */
+ else if (switches[i].args != 0)
+ {
+ if ((*switches[i].part1 == 'D' || *switches[i].part1 == 'U')
+ && *switches[i].part1 == atom[0])
+ {
+ if (!strncmp (switches[i].args[0], &atom[1], len - 1)
+ && (starred || (switches[i].part1[1] == '\0'
+ && switches[i].args[0][len - 1] == '\0'))
+ && check_live_switch (i, (starred ? 1 : -1)))
+ return true;
+ }
+ }
+
+ return false;
+}
+
+/* Inline subroutine of handle_braces. Mark all of the switches which
+ match ATOM (extends to END_ATOM; STARRED indicates whether there
+ was a star after the atom) for later processing. */
+static inline void
+mark_matching_switches (const char *atom, const char *end_atom, int starred)
+{
+ int i;
+ int len = end_atom - atom;
+ int plen = starred ? len : -1;
+
+ for (i = 0; i < n_switches; i++)
+ if (!strncmp (switches[i].part1, atom, len)
+ && (starred || switches[i].part1[len] == '\0')
+ && check_live_switch (i, plen))
+ switches[i].ordering = 1;
+}
+
+/* Inline subroutine of handle_braces. Process all the currently
+ marked switches through give_switch, and clear the marks. */
+static inline void
+process_marked_switches (void)
+{
+ int i;
+
+ for (i = 0; i < n_switches; i++)
+ if (switches[i].ordering == 1)
+ {
+ switches[i].ordering = 0;
+ give_switch (i, 0);
+ }
+}
+
+/* Handle a %{ ... } construct. P points just inside the leading {.
+ Returns a pointer one past the end of the brace block, or 0
+ if we call do_spec_1 and that returns -1. */
+
+static const char *
+handle_braces (const char *p)
+{
+ const char *atom, *end_atom;
+ const char *d_atom = NULL, *d_end_atom = NULL;
+ const char *orig = p;
+
+ bool a_is_suffix;
+ bool a_is_spectype;
+ bool a_is_starred;
+ bool a_is_negated;
+ bool a_matched;
+
+ bool a_must_be_last = false;
+ bool ordered_set = false;
+ bool disjunct_set = false;
+ bool disj_matched = false;
+ bool disj_starred = true;
+ bool n_way_choice = false;
+ bool n_way_matched = false;
+
+#define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
+
+ do
+ {
+ if (a_must_be_last)
+ goto invalid;
+
+ /* Scan one "atom" (S in the description above of %{}, possibly
+ 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 == '!')
+ p++, a_is_negated = true;
+
+ SKIP_WHITE ();
+ if (*p == '%' && p[1] == ':')
+ {
+ atom = NULL;
+ end_atom = NULL;
+ p = handle_spec_function (p + 2, &a_matched);
+ }
+ else
+ {
+ if (*p == '.')
+ p++, a_is_suffix = true;
+ else if (*p == ',')
+ p++, a_is_spectype = true;
+
+ atom = p;
+ while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '='
+ || *p == ',' || *p == '.' || *p == '@')
+ p++;
+ end_atom = p;
+
+ if (*p == '*')
+ p++, a_is_starred = 1;
+ }
+
+ SKIP_WHITE ();
+ switch (*p)
+ {
+ case '&': case '}':
+ /* Substitute the switch(es) indicated by the current atom. */
+ ordered_set = true;
+ if (disjunct_set || n_way_choice || a_is_negated || a_is_suffix
+ || a_is_spectype || atom == end_atom)
+ goto invalid;
+
+ mark_matching_switches (atom, end_atom, a_is_starred);
+
+ if (*p == '}')
+ process_marked_switches ();
+ break;
+
+ case '|': case ':':
+ /* Substitute some text if the current atom appears as a switch
+ or suffix. */
+ disjunct_set = true;
+ if (ordered_set)
+ goto invalid;
+
+ if (atom && atom == end_atom)
+ {
+ if (!n_way_choice || disj_matched || *p == '|'
+ || 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
+ N-way choice set; it means "otherwise". */
+ a_must_be_last = true;
+ disj_matched = !n_way_matched;
+ disj_starred = false;
+ }
+ else
+ {
+ 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 (atom == NULL)
+ /* a_matched is already set by handle_spec_function. */;
+ else 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 == ':')
+ {
+ /* Found the body, that is, the text to substitute if the
+ current disjunction matches. */
+ p = process_brace_body (p + 1, d_atom, d_end_atom, disj_starred,
+ disj_matched && !n_way_matched);
+ if (p == 0)
+ return 0;
+
+ /* If we have an N-way choice, reset state for the next
+ disjunction. */
+ if (*p == ';')
+ {
+ n_way_choice = true;
+ n_way_matched |= disj_matched;
+ disj_matched = false;
+ disj_starred = true;
+ d_atom = d_end_atom = NULL;
+ }
+ }
+ break;
+
+ default:
+ goto invalid;
+ }
+ }
+ while (*p++ != '}');
+
+ return p;
+
+ invalid:
+ fatal_error ("braced spec %qs is invalid at %qc", orig, *p);
+
+#undef SKIP_WHITE
+}
+
+/* Subroutine of handle_braces. Scan and process a brace substitution body
+ (X in the description of %{} syntax). P points one past the colon;
+ ATOM and END_ATOM bracket the first atom which was found to be true
+ (present) in the current disjunction; STARRED indicates whether all
+ the atoms in the current disjunction were starred (for syntax validation);
+ MATCHED indicates whether the disjunction matched or not, and therefore
+ whether or not the body is to be processed through do_spec_1 or just
+ skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
+ returns -1. */
+
+static const char *
+process_brace_body (const char *p, const char *atom, const char *end_atom,
+ int starred, int matched)
+{
+ const char *body, *end_body;
+ unsigned int nesting_level;
+ bool have_subst = false;
+
+ /* Locate the closing } or ;, honoring nested braces.
+ Trim trailing whitespace. */
+ body = p;
+ nesting_level = 1;
+ for (;;)
+ {
+ if (*p == '{')
+ nesting_level++;
+ else if (*p == '}')
+ {
+ if (!--nesting_level)
+ break;
+ }
+ else if (*p == ';' && nesting_level == 1)
+ break;
+ else if (*p == '%' && p[1] == '*' && nesting_level == 1)
+ have_subst = true;
+ else if (*p == '\0')
+ goto invalid;
+ p++;
+ }
+
+ end_body = p;
+ while (end_body[-1] == ' ' || end_body[-1] == '\t')
+ end_body--;
+
+ if (have_subst && !starred)
+ goto invalid;
+
+ if (matched)
+ {
+ /* Copy the substitution body to permanent storage and execute it.
+ If have_subst is false, this is a simple matter of running the
+ body through do_spec_1... */
+ char *string = save_string (body, end_body - body);
+ if (!have_subst)
+ {
+ if (do_spec_1 (string, 0, NULL) < 0)
+ return 0;
+ }
+ else
+ {
+ /* ... but if have_subst is true, we have to process the
+ body once for each matching switch, with %* set to the
+ variant part of the switch. */
+ unsigned int hard_match_len = end_atom - atom;
+ int i;
+
+ for (i = 0; i < n_switches; i++)
+ if (!strncmp (switches[i].part1, atom, hard_match_len)
+ && check_live_switch (i, hard_match_len))
+ {
+ if (do_spec_1 (string, 0,
+ &switches[i].part1[hard_match_len]) < 0)
+ return 0;
+ /* Pass any arguments this switch has. */
+ give_switch (i, 1);
+ suffix_subst = NULL;
+ }
+ }
+ }
+
+ return p;
+
+ invalid:
+ fatal_error ("braced spec body %qs is invalid", body);
+}
+
+/* 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, -g, -m, or -W switch
+ whose value does not begin with "no-" is obsoleted by the same value
+ with the "no-", similarly for a switch with the "no-" prefix. */
+
+static int
+check_live_switch (int switchnum, int prefix_length)
+{
+ const char *name = switches[switchnum].part1;
+ int i;
+
+ /* 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 & SWITCH_LIVE) != 0
+ && (switches[switchnum].live_cond & SWITCH_FALSE) == 0
+ && (switches[switchnum].live_cond & SWITCH_IGNORE_PERMANENTLY)
+ == 0);
+
+ /* 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;
+
+ /* 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 = true;
+ switches[switchnum].live_cond = SWITCH_FALSE;
+ return 0;
+ }
+ break;
+
+ case 'W': case 'f': case 'm': case 'g':
+ 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]))
+ {
+ /* --specs are validated with the validate_switches mechanism. */
+ if (switches[switchnum].known)
+ switches[switchnum].validated = true;
+ switches[switchnum].live_cond = SWITCH_FALSE;
+ 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]))
+ {
+ /* --specs are validated with the validate_switches mechanism. */
+ if (switches[switchnum].known)
+ switches[switchnum].validated = true;
+ switches[switchnum].live_cond = SWITCH_FALSE;
+ return 0;
+ }
+ }
+ break;
+ }
+
+ /* Otherwise the switch is live. */
+ switches[switchnum].live_cond |= SWITCH_LIVE;
+ 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. */
+
+static void
+give_switch (int switchnum, int omit_first_word)
+{
+ if ((switches[switchnum].live_cond & SWITCH_IGNORE) != 0)
+ return;
+
+ if (!omit_first_word)
+ {
+ do_spec_1 ("-", 0, NULL);
+ do_spec_1 (switches[switchnum].part1, 1, NULL);
+ }
+
+ if (switches[switchnum].args != 0)
+ {
+ const char **p;
+ for (p = switches[switchnum].args; *p; p++)
+ {
+ const char *arg = *p;
+
+ do_spec_1 (" ", 0, NULL);
+ if (suffix_subst)
+ {
+ unsigned length = strlen (arg);
+ int dot = 0;
+
+ while (length-- && !IS_DIR_SEPARATOR (arg[length]))
+ if (arg[length] == '.')
+ {
+ (CONST_CAST (char *, arg))[length] = 0;
+ dot = 1;
+ break;
+ }
+ do_spec_1 (arg, 1, NULL);
+ if (dot)
+ (CONST_CAST (char *, arg))[length] = '.';
+ do_spec_1 (suffix_subst, 1, NULL);
+ }
+ else
+ do_spec_1 (arg, 1, NULL);
+ }
+ }
+
+ do_spec_1 (" ", 0, NULL);
+ switches[switchnum].validated = true;
+}
+
+/* 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 (const char *name)
+{
+ 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. */
+
+static int
+is_directory (const char *path1, bool linker)
+{
+ int len1;
+ char *path;
+ char *cp;
+ struct stat st;
+
+ /* 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 = (char *) alloca (3 + len1);
+ memcpy (path, path1, len1);
+ cp = path + len1;
+ if (!IS_DIR_SEPARATOR (cp[-1]))
+ *cp++ = DIR_SEPARATOR;
+ *cp++ = '.';
+ *cp = '\0';
+
+ /* Exclude directories that the linker is known to search. */
+ if (linker
+ && IS_DIR_SEPARATOR (path[0])
+ && ((cp - path == 6
+ && filename_ncmp (path + 1, "lib", 3) == 0)
+ || (cp - path == 10
+ && filename_ncmp (path + 1, "usr", 3) == 0
+ && IS_DIR_SEPARATOR (path[4])
+ && filename_ncmp (path + 5, "lib", 3) == 0)))
+ return 0;
+
+ return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
+}
+
+/* Set up the various global variables to indicate that we're processing
+ the input file named FILENAME. */
+
+void
+set_input (const char *filename)
+{
+ const char *p;
+
+ gcc_input_filename = filename;
+ input_filename_length = strlen (gcc_input_filename);
+ input_basename = lbasename (gcc_input_filename);
+
+ /* Find a suffix starting with the last period,
+ and set basename_length to exclude that suffix. */
+ basename_length = strlen (input_basename);
+ suffixed_basename_length = basename_length;
+ 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 = "";
+
+ /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
+ we will need to do a stat on the gcc_input_filename. The
+ INPUT_STAT_SET signals that the stat is needed. */
+ input_stat_set = 0;
+}
+
+/* On fatal signals, delete all the temporary files. */
+
+static void
+fatal_signal (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);
+}
+
+/* Compare the contents of the two files named CMPFILE[0] and
+ CMPFILE[1]. Return zero if they're identical, nonzero
+ otherwise. */
+
+static int
+compare_files (char *cmpfile[])
+{
+ int ret = 0;
+ FILE *temp[2] = { NULL, NULL };
+ int i;
+
+#if HAVE_MMAP_FILE
+ {
+ size_t length[2];
+ void *map[2] = { NULL, NULL };
+
+ for (i = 0; i < 2; i++)
+ {
+ struct stat st;
+
+ if (stat (cmpfile[i], &st) < 0 || !S_ISREG (st.st_mode))
+ {
+ error ("%s: could not determine length of compare-debug file %s",
+ gcc_input_filename, cmpfile[i]);
+ ret = 1;
+ break;
+ }
+
+ length[i] = st.st_size;
+ }
+
+ if (!ret && length[0] != length[1])
+ {
+ error ("%s: -fcompare-debug failure (length)", gcc_input_filename);
+ ret = 1;
+ }
+
+ if (!ret)
+ for (i = 0; i < 2; i++)
+ {
+ int fd = open (cmpfile[i], O_RDONLY);
+ if (fd < 0)
+ {
+ error ("%s: could not open compare-debug file %s",
+ gcc_input_filename, cmpfile[i]);
+ ret = 1;
+ break;
+ }
+
+ map[i] = mmap (NULL, length[i], PROT_READ, MAP_PRIVATE, fd, 0);
+ close (fd);
+
+ if (map[i] == (void *) MAP_FAILED)
+ {
+ ret = -1;
+ break;
+ }
+ }
+
+ if (!ret)
+ {
+ if (memcmp (map[0], map[1], length[0]) != 0)
+ {
+ error ("%s: -fcompare-debug failure", gcc_input_filename);
+ ret = 1;
+ }
+ }
+
+ for (i = 0; i < 2; i++)
+ if (map[i])
+ munmap ((caddr_t) map[i], length[i]);
+
+ if (ret >= 0)
+ return ret;
+
+ ret = 0;
+ }
+#endif
+
+ for (i = 0; i < 2; i++)
+ {
+ temp[i] = fopen (cmpfile[i], "r");
+ if (!temp[i])
+ {
+ error ("%s: could not open compare-debug file %s",
+ gcc_input_filename, cmpfile[i]);
+ ret = 1;
+ break;
+ }
+ }
+
+ if (!ret && temp[0] && temp[1])
+ for (;;)
+ {
+ int c0, c1;
+ c0 = fgetc (temp[0]);
+ c1 = fgetc (temp[1]);
+
+ if (c0 != c1)
+ {
+ error ("%s: -fcompare-debug failure",
+ gcc_input_filename);
+ ret = 1;
+ break;
+ }
+
+ if (c0 == EOF)
+ break;
+ }
+
+ for (i = 1; i >= 0; i--)
+ {
+ if (temp[i])
+ fclose (temp[i]);
+ }
+
+ return ret;
+}
+
+extern int main (int, char **);
+
+int
+main (int argc, char **argv)
+{
+ size_t i;
+ int value;
+ int linker_was_run = 0;
+ int lang_n_infiles = 0;
+ int num_linker_inputs = 0;
+ char *explicit_link_files;
+ char *specs_file;
+ char *lto_wrapper_file;
+ const char *p;
+ struct user_specs *uptr;
+ char **old_argv = argv;
+ struct cl_decoded_option *decoded_options;
+ unsigned int decoded_options_count;
+
+ p = argv[0] + strlen (argv[0]);
+ while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
+ --p;
+ progname = p;
+
+ xmalloc_set_program_name (progname);
+
+ expandargv (&argc, &argv);
+
+ /* Determine if any expansions were made. */
+ if (argv != old_argv)
+ at_file_supplied = true;
+
+ /* Register the language-independent parameters. */
+ global_init_params ();
+ finish_params ();
+
+ init_options_struct (&global_options, &global_options_set);
+
+ decode_cmdline_options_to_array (argc, CONST_CAST2 (const char **, char **,
+ argv),
+ CL_DRIVER,
+ &decoded_options, &decoded_options_count);
+
+ /* Unlock the stdio streams. */
+ unlock_std_streams ();
+
+ gcc_init_libintl ();
+
+ diagnostic_initialize (global_dc, 0);
+
+#ifdef GCC_DRIVER_HOST_INITIALIZATION
+ /* Perform host dependent initialization when needed. */
+ GCC_DRIVER_HOST_INITIALIZATION;
+#endif
+
+ if (atexit (delete_temp_files) != 0)
+ fatal_error ("atexit failed");
+
+ if (signal (SIGINT, SIG_IGN) != SIG_IGN)
+ signal (SIGINT, fatal_signal);
+#ifdef SIGHUP
+ if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
+ signal (SIGHUP, fatal_signal);
+#endif
+ if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
+ signal (SIGTERM, fatal_signal);
+#ifdef SIGPIPE
+ if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
+ signal (SIGPIPE, fatal_signal);
+#endif
+#ifdef SIGCHLD
+ /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
+ receive the signal. A different setting is inheritable */
+ signal (SIGCHLD, SIG_DFL);
+#endif
+
+ /* Parsing and gimplification sometimes need quite large stack.
+ Increase stack size limits if possible. */
+ stack_limit_increase (64 * 1024 * 1024);
+
+ /* Allocate the argument vector. */
+ alloc_args ();
+
+ obstack_init (&obstack);
+
+ /* Build multilib_select, et. al from the separate lines that make up each
+ multilib selection. */
+ {
+ const char *const *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 = XOBFINISH (&multilib_obstack, const char *);
+
+ q = multilib_matches_raw;
+ while ((p = *q++) != (char *) 0)
+ obstack_grow (&multilib_obstack, p, strlen (p));
+
+ obstack_1grow (&multilib_obstack, 0);
+ multilib_matches = XOBFINISH (&multilib_obstack, const char *);
+
+ q = multilib_exclusions_raw;
+ while ((p = *q++) != (char *) 0)
+ obstack_grow (&multilib_obstack, p, strlen (p));
+
+ obstack_1grow (&multilib_obstack, 0);
+ multilib_exclusions = XOBFINISH (&multilib_obstack, const char *);
+
+ q = multilib_reuse_raw;
+ while ((p = *q++) != (char *) 0)
+ obstack_grow (&multilib_obstack, p, strlen (p));
+
+ obstack_1grow (&multilib_obstack, 0);
+ multilib_reuse = XOBFINISH (&multilib_obstack, const char *);
+
+ need_space = FALSE;
+ for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); 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 = XOBFINISH (&multilib_obstack, const char *);
+ }
+
+#ifdef INIT_ENVIRONMENT
+ /* Set up any other necessary machine specific environment variables. */
+ xputenv (INIT_ENVIRONMENT);
+#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 (decoded_options_count, decoded_options);
+
+ /* Initialize the vector of specs to just the default.
+ This means one element containing 0s, as a terminator. */
+
+ compilers = XNEWVAR (struct compiler, sizeof default_compilers);
+ memcpy (compilers, default_compilers, sizeof default_compilers);
+ n_compilers = n_default_compilers;
+
+ /* Read specs from a file if there is one. */
+
+ machine_suffix = concat (spec_machine, dir_separator_str,
+ spec_version, dir_separator_str, NULL);
+ just_machine_suffix = concat (spec_machine, dir_separator_str, NULL);
+
+ specs_file = find_a_file (&startfile_prefixes, "specs", R_OK, true);
+ /* Read the specs file unless it is a default one. */
+ if (specs_file != 0 && strcmp (specs_file, "specs"))
+ read_specs (specs_file, true, false);
+ 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, false);
+
+ /* Process any configure-time defaults specified for the command line
+ options, via OPTION_DEFAULT_SPECS. */
+ for (i = 0; i < ARRAY_SIZE (option_default_specs); i++)
+ do_option_spec (option_default_specs[i].name,
+ option_default_specs[i].spec);
+
+ /* Process DRIVER_SELF_SPECS, adding any new options to the end
+ of the command line. */
+
+ for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++)
+ do_self_spec (driver_self_specs[i]);
+
+ /* If not cross-compiling, look for executables in the standard
+ places. */
+ if (*cross_compile == '0')
+ {
+ if (*md_exec_prefix)
+ {
+ add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
+ PREFIX_PRIORITY_LAST, 0, 0);
+ }
+ }
+
+ /* Process sysroot_suffix_spec. */
+ if (*sysroot_suffix_spec != 0
+ && !no_sysroot_suffix
+ && do_spec_2 (sysroot_suffix_spec) == 0)
+ {
+ if (argbuf.length () > 1)
+ error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
+ else if (argbuf.length () == 1)
+ target_sysroot_suffix = xstrdup (argbuf.last ());
+ }
+
+#ifdef HAVE_LD_SYSROOT
+ /* Pass the --sysroot option to the linker, if it supports that. If
+ there is a sysroot_suffix_spec, it has already been processed by
+ this point, so target_system_root really is the system root we
+ should be using. */
+ if (target_system_root)
+ {
+ obstack_grow (&obstack, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
+ obstack_grow0 (&obstack, link_spec, strlen (link_spec));
+ set_spec ("link", XOBFINISH (&obstack, const char *), false);
+ }
+#endif
+
+ /* Process sysroot_hdrs_suffix_spec. */
+ if (*sysroot_hdrs_suffix_spec != 0
+ && !no_sysroot_suffix
+ && do_spec_2 (sysroot_hdrs_suffix_spec) == 0)
+ {
+ if (argbuf.length () > 1)
+ error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
+ else if (argbuf.length () == 1)
+ target_sysroot_hdrs_suffix = xstrdup (argbuf.last ());
+ }
+
+ /* Look for startfiles in the standard places. */
+ if (*startfile_prefix_spec != 0
+ && do_spec_2 (startfile_prefix_spec) == 0
+ && do_spec_1 (" ", 0, NULL) == 0)
+ {
+ const char *arg;
+ int ndx;
+ FOR_EACH_VEC_ELT (argbuf, ndx, arg)
+ add_sysrooted_prefix (&startfile_prefixes, arg, "BINUTILS",
+ PREFIX_PRIORITY_LAST, 0, 1);
+ }
+ /* We should eventually get rid of all these and stick to
+ startfile_prefix_spec exclusively. */
+ else if (*cross_compile == '0' || target_system_root)
+ {
+ if (*md_startfile_prefix)
+ add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix,
+ "GCC", PREFIX_PRIORITY_LAST, 0, 1);
+
+ if (*md_startfile_prefix_1)
+ add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix_1,
+ "GCC", PREFIX_PRIORITY_LAST, 0, 1);
+
+ /* 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 the prefix is relative, only search it for native compilers;
+ otherwise we will search a directory containing host libraries. */
+ if (IS_ABSOLUTE_PATH (standard_startfile_prefix))
+ add_sysrooted_prefix (&startfile_prefixes,
+ standard_startfile_prefix, "BINUTILS",
+ PREFIX_PRIORITY_LAST, 0, 1);
+ else if (*cross_compile == '0')
+ {
+ add_prefix (&startfile_prefixes,
+ 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",
+ PREFIX_PRIORITY_LAST, 0, 1);
+ if (*standard_startfile_prefix_2)
+ add_sysrooted_prefix (&startfile_prefixes,
+ standard_startfile_prefix_2, "BINUTILS",
+ PREFIX_PRIORITY_LAST, 0, 1);
+ }
+
+ /* 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, true);
+ read_specs (filename ? filename : uptr->filename, false, true);
+ }
+
+ /* Process any user self specs. */
+ {
+ struct spec_list *sl;
+ for (sl = specs; sl; sl = sl->next)
+ if (sl->name_len == sizeof "self_spec" - 1
+ && !strcmp (sl->name, "self_spec"))
+ do_self_spec (*sl->ptr_spec);
+ }
+
+ if (compare_debug)
+ {
+ enum save_temps save;
+
+ if (!compare_debug_second)
+ {
+ n_switches_debug_check[1] = n_switches;
+ n_switches_alloc_debug_check[1] = n_switches_alloc;
+ switches_debug_check[1] = XDUPVEC (struct switchstr, switches,
+ n_switches_alloc);
+
+ do_self_spec ("%:compare-debug-self-opt()");
+ n_switches_debug_check[0] = n_switches;
+ n_switches_alloc_debug_check[0] = n_switches_alloc;
+ switches_debug_check[0] = switches;
+
+ n_switches = n_switches_debug_check[1];
+ n_switches_alloc = n_switches_alloc_debug_check[1];
+ switches = switches_debug_check[1];
+ }
+
+ /* Avoid crash when computing %j in this early. */
+ save = save_temps_flag;
+ save_temps_flag = SAVE_TEMPS_NONE;
+
+ compare_debug = -compare_debug;
+ do_self_spec ("%:compare-debug-self-opt()");
+
+ save_temps_flag = save;
+
+ if (!compare_debug_second)
+ {
+ n_switches_debug_check[1] = n_switches;
+ n_switches_alloc_debug_check[1] = n_switches_alloc;
+ switches_debug_check[1] = switches;
+ compare_debug = -compare_debug;
+ n_switches = n_switches_debug_check[0];
+ n_switches_alloc = n_switches_debug_check[0];
+ switches = switches_debug_check[0];
+ }
+ }
+
+
+ /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
+ if (gcc_exec_prefix)
+ gcc_exec_prefix = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
+ spec_version, dir_separator_str, NULL);
+
+ /* 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 ();
+
+ /* Set up to remember the pathname of gcc and any options
+ needed for collect. We use argv[0] instead of progname 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);
+ xputenv (XOBFINISH (&collect_obstack, char *));
+
+ /* Set up to remember the pathname of the lto wrapper. */
+
+ if (have_c)
+ lto_wrapper_file = NULL;
+ else
+ lto_wrapper_file = find_a_file (&exec_prefixes, "lto-wrapper",
+ X_OK, false);
+ if (lto_wrapper_file)
+ {
+ lto_wrapper_file = convert_white_space (lto_wrapper_file);
+ lto_wrapper_spec = lto_wrapper_file;
+ obstack_init (&collect_obstack);
+ obstack_grow (&collect_obstack, "COLLECT_LTO_WRAPPER=",
+ sizeof ("COLLECT_LTO_WRAPPER=") - 1);
+ obstack_grow (&collect_obstack, lto_wrapper_spec,
+ strlen (lto_wrapper_spec) + 1);
+ xputenv (XOBFINISH (&collect_obstack, char *));
+ }
+
+ /* Reject switches that no pass was interested in. */
+
+ for (i = 0; (int) i < n_switches; i++)
+ if (! switches[i].validated)
+ error ("unrecognized command line option %<-%s%>", switches[i].part1);
+
+ /* Obey some of the options. */
+
+ if (print_search_dirs)
+ {
+ 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);
+ }
+
+ if (print_file_name)
+ {
+ printf ("%s\n", find_file (print_file_name));
+ return (0);
+ }
+
+ if (print_prog_name)
+ {
+ if (use_ld != NULL && ! strcmp (print_prog_name, "ld"))
+ {
+ /* Append USE_LD to to the default linker. */
+#ifdef DEFAULT_LINKER
+ char *ld;
+# ifdef HAVE_HOST_EXECUTABLE_SUFFIX
+ int len = (sizeof (DEFAULT_LINKER)
+ - sizeof (HOST_EXECUTABLE_SUFFIX));
+ ld = NULL;
+ if (len > 0)
+ {
+ char *default_linker = xstrdup (DEFAULT_LINKER);
+ /* Strip HOST_EXECUTABLE_SUFFIX if DEFAULT_LINKER contains
+ HOST_EXECUTABLE_SUFFIX. */
+ if (! strcmp (&default_linker[len], HOST_EXECUTABLE_SUFFIX))
+ {
+ default_linker[len] = '\0';
+ ld = concat (default_linker, use_ld,
+ HOST_EXECUTABLE_SUFFIX, NULL);
+ }
+ }
+ if (ld == NULL)
+# endif
+ ld = concat (DEFAULT_LINKER, use_ld, NULL);
+ if (access (ld, X_OK) == 0)
+ {
+ printf ("%s\n", ld);
+ return (0);
+ }
+#endif
+ print_prog_name = concat (print_prog_name, use_ld, NULL);
+ }
+ char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK, 0);
+ printf ("%s\n", (newname ? newname : print_prog_name));
+ return (0);
+ }
+
+ if (print_multi_lib)
+ {
+ print_multilib_info ();
+ return (0);
+ }
+
+ if (print_multi_directory)
+ {
+ if (multilib_dir == NULL)
+ printf (".\n");
+ else
+ printf ("%s\n", multilib_dir);
+ return (0);
+ }
+
+ if (print_multiarch)
+ {
+ if (multiarch_dir == NULL)
+ printf ("\n");
+ else
+ printf ("%s\n", multiarch_dir);
+ return (0);
+ }
+
+ if (print_sysroot)
+ {
+ if (target_system_root)
+ {
+ if (target_sysroot_suffix)
+ printf ("%s%s\n", target_system_root, target_sysroot_suffix);
+ else
+ printf ("%s\n", target_system_root);
+ }
+ return (0);
+ }
+
+ if (print_multi_os_directory)
+ {
+ if (multilib_os_dir == NULL)
+ printf (".\n");
+ else
+ printf ("%s\n", multilib_os_dir);
+ return (0);
+ }
+
+ 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_error ("not configured with sysroot headers suffix");
+ }
+
+ if (print_help_list)
+ {
+ display_help ();
+
+ if (! verbose_flag)
+ {
+ printf (_("\nFor bug reporting instructions, please see:\n"));
+ printf ("%s.\n", bug_report_url);
+
+ return (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 various sub-processes, along with the --help switch.
+ Ensure their output appears after ours. */
+ fputc ('\n', stdout);
+ fflush (stdout);
+ }
+
+ if (print_version)
+ {
+ printf (_("%s %s%s\n"), progname, pkgversion_string,
+ version_string);
+ printf ("Copyright %s 2014 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"),
+ stdout);
+ if (! verbose_flag)
+ return 0;
+
+ /* We do not exit here. We use the same mechanism of --help to print
+ the version of the sub-processes. */
+ fputc ('\n', stdout);
+ fflush (stdout);
+ }
+
+ if (verbose_flag)
+ {
+ int n;
+ const char *thrmod;
+
+ fnotice (stderr, "Target: %s\n", spec_machine);
+ fnotice (stderr, "Configured with: %s\n", configuration_arguments);
+
+#ifdef THREAD_MODEL_SPEC
+ /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
+ but there's no point in doing all this processing just to get
+ thread_model back. */
+ obstack_init (&obstack);
+ do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model);
+ obstack_1grow (&obstack, '\0');
+ thrmod = XOBFINISH (&obstack, const char *);
+#else
+ thrmod = thread_model;
+#endif
+
+ fnotice (stderr, "Thread model: %s\n", thrmod);
+
+ /* 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)
+ fnotice (stderr, "gcc version %s %s\n", version_string,
+ pkgversion_string);
+ else
+ fnotice (stderr, "gcc driver version %s %sexecuting gcc version %s\n",
+ version_string, pkgversion_string, compiler_version);
+
+ if (n_infiles == 0)
+ return (0);
+ }
+
+ if (n_infiles == added_libraries)
+ fatal_error ("no input files");
+
+ if (seen_error ())
+ goto out;
+
+ /* 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 = XCNEWVEC (const char *, i);
+
+ /* Record which files were specified explicitly as link input. */
+
+ explicit_link_files = XCNEWVEC (char, n_infiles);
+
+ combine_inputs = have_o || flag_wpa;
+
+ for (i = 0; (int) i < n_infiles; i++)
+ {
+ const char *name = infiles[i].name;
+ struct compiler *compiler = lookup_compiler (name,
+ strlen (name),
+ infiles[i].language);
+
+ if (compiler && !(compiler->combinable))
+ combine_inputs = false;
+
+ if (lang_n_infiles > 0 && compiler != input_file_compiler
+ && infiles[i].language && infiles[i].language[0] != '*')
+ infiles[i].incompiler = compiler;
+ else if (compiler)
+ {
+ lang_n_infiles++;
+ input_file_compiler = compiler;
+ infiles[i].incompiler = compiler;
+ }
+ else
+ {
+ /* Since there is no compiler for this input file, assume it is a
+ linker file. */
+ explicit_link_files[i] = 1;
+ infiles[i].incompiler = NULL;
+ }
+ infiles[i].compiled = false;
+ infiles[i].preprocessed = false;
+ }
+
+ if (!combine_inputs && have_c && have_o && lang_n_infiles > 1)
+ fatal_error ("cannot specify -o with -c, -S or -E with multiple files");
+
+ for (i = 0; (int) i < n_infiles; i++)
+ {
+ int this_file_error = 0;
+
+ /* Tell do_spec what to substitute for %i. */
+
+ input_file_number = i;
+ set_input (infiles[i].name);
+
+ if (infiles[i].compiled)
+ continue;
+
+ /* Use the same thing in %o, unless cp->spec says otherwise. */
+
+ outfiles[i] = gcc_input_filename;
+
+ /* Figure out which compiler from the file's suffix. */
+
+ input_file_compiler
+ = lookup_compiler (infiles[i].name, input_filename_length,
+ infiles[i].language);
+
+ if (input_file_compiler)
+ {
+ /* Ok, we found an applicable compiler. Run its spec. */
+
+ if (input_file_compiler->spec[0] == '#')
+ {
+ error ("%s: %s compiler not installed on this system",
+ gcc_input_filename, &input_file_compiler->spec[1]);
+ this_file_error = 1;
+ }
+ else
+ {
+ if (compare_debug)
+ {
+ free (debug_check_temp_file[0]);
+ debug_check_temp_file[0] = NULL;
+
+ free (debug_check_temp_file[1]);
+ debug_check_temp_file[1] = NULL;
+ }
+
+ value = do_spec (input_file_compiler->spec);
+ infiles[i].compiled = true;
+ if (value < 0)
+ this_file_error = 1;
+ else if (compare_debug && debug_check_temp_file[0])
+ {
+ if (verbose_flag)
+ inform (0, "recompiling with -fcompare-debug");
+
+ compare_debug = -compare_debug;
+ n_switches = n_switches_debug_check[1];
+ n_switches_alloc = n_switches_alloc_debug_check[1];
+ switches = switches_debug_check[1];
+
+ value = do_spec (input_file_compiler->spec);
+
+ compare_debug = -compare_debug;
+ n_switches = n_switches_debug_check[0];
+ n_switches_alloc = n_switches_alloc_debug_check[0];
+ switches = switches_debug_check[0];
+
+ if (value < 0)
+ {
+ error ("during -fcompare-debug recompilation");
+ this_file_error = 1;
+ }
+
+ gcc_assert (debug_check_temp_file[1]
+ && filename_cmp (debug_check_temp_file[0],
+ debug_check_temp_file[1]));
+
+ if (verbose_flag)
+ inform (0, "comparing final insns dumps");
+
+ if (compare_files (debug_check_temp_file))
+ this_file_error = 1;
+ }
+
+ if (compare_debug)
+ {
+ free (debug_check_temp_file[0]);
+ debug_check_temp_file[0] = NULL;
+
+ free (debug_check_temp_file[1]);
+ debug_check_temp_file[1] = NULL;
+ }
+ }
+ }
+
+ /* 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 ();
+ errorcount++;
+ }
+ /* If this compilation succeeded, don't delete those files later. */
+ clear_failure_queue ();
+ }
+
+ /* Reset the input file name to the first compile/object file name, for use
+ with %b in LINK_SPEC. We use the first input file that we can find
+ a compiler to compile it instead of using infiles.language since for
+ languages other than C we use aliases that we then lookup later. */
+ if (n_infiles > 0)
+ {
+ int i;
+
+ for (i = 0; i < n_infiles ; i++)
+ if (infiles[i].incompiler
+ || (infiles[i].language && infiles[i].language[0] != '*'))
+ {
+ set_input (infiles[i].name);
+ break;
+ }
+ }
+
+ if (!seen_error ())
+ {
+ /* Make sure INPUT_FILE_NUMBER points to first available open
+ slot. */
+ input_file_number = n_infiles;
+ if (lang_specific_pre_link ())
+ errorcount++;
+ }
+
+ /* Determine if there are any linker input files. */
+ num_linker_inputs = 0;
+ for (i = 0; (int) i < n_infiles; i++)
+ if (explicit_link_files[i] || outfiles[i] != NULL)
+ num_linker_inputs++;
+
+ /* Run ld to link all the compiler output files. */
+
+ if (num_linker_inputs > 0 && !seen_error () && print_subprocess_help < 2)
+ {
+ int tmp = execution_count;
+
+ if (! have_c)
+ {
+#if HAVE_LTO_PLUGIN > 0
+#if HAVE_LTO_PLUGIN == 2
+ const char *fno_use_linker_plugin = "fno-use-linker-plugin";
+#else
+ const char *fuse_linker_plugin = "fuse-linker-plugin";
+#endif
+#endif
+
+ /* 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, false);
+ if (s == NULL)
+ linker_name_spec = "ld";
+ }
+
+#if HAVE_LTO_PLUGIN > 0
+#if HAVE_LTO_PLUGIN == 2
+ if (!switch_matches (fno_use_linker_plugin,
+ fno_use_linker_plugin
+ + strlen (fno_use_linker_plugin), 0))
+#else
+ if (switch_matches (fuse_linker_plugin,
+ fuse_linker_plugin
+ + strlen (fuse_linker_plugin), 0))
+#endif
+ {
+ char *temp_spec = find_a_file (&exec_prefixes,
+ LTOPLUGINSONAME, R_OK,
+ false);
+ if (!temp_spec)
+ fatal_error ("-fuse-linker-plugin, but %s not found",
+ LTOPLUGINSONAME);
+ linker_plugin_file_spec = convert_white_space (temp_spec);
+ }
+#endif
+ lto_gcc_spec = argv[0];
+ }
+
+ /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
+ for collect. */
+ 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)
+ errorcount = 1;
+ linker_was_run = (tmp != execution_count);
+ }
+
+ /* If options said don't run linker,
+ complain about input files to be given to the linker. */
+
+ if (! linker_was_run && !seen_error ())
+ for (i = 0; (int) i < n_infiles; i++)
+ if (explicit_link_files[i]
+ && !(infiles[i].language && infiles[i].language[0] == '*'))
+ warning (0, "%s: linker input file unused because linking not done",
+ outfiles[i]);
+
+ /* Delete some or all of the temporary files we made. */
+
+ if (seen_error ())
+ delete_failure_queue ();
+ delete_temp_files ();
+
+ if (print_help_list)
+ {
+ printf (("\nFor bug reporting instructions, please see:\n"));
+ printf ("%s\n", bug_report_url);
+ }
+
+ out:
+ return (signal_count != 0 ? 2
+ : seen_error () ? (pass_exit_codes ? greatest_status : 1)
+ : 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 (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. */
+ && !strcmp (cp->suffix,
+ name + length - strlen (cp->suffix))
+ ))
+ break;
+ }
+
+#if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
+ /* Look again, but case-insensitively this time. */
+ if (cp < compilers)
+ for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
+ {
+ if (/* The suffix `-' matches only the file name `-'. */
+ (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
+ || (strlen (cp->suffix) < length
+ /* See if the suffix matches the end of NAME. */
+ && ((!strcmp (cp->suffix,
+ name + length - strlen (cp->suffix))
+ || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
+ && !strcasecmp (cp->suffix,
+ name + length - strlen (cp->suffix)))
+ ))
+ break;
+ }
+#endif
+
+ if (cp >= compilers)
+ {
+ if (cp->spec[0] != '@')
+ /* A non-alias entry: return it. */
+ return cp;
+
+ /* 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. */
+ return lookup_compiler (NULL, 0, cp->spec + 1);
+ }
+ return 0;
+}
+
+static char *
+save_string (const char *s, int len)
+{
+ char *result = XNEWVEC (char, len + 1);
+
+ memcpy (result, s, len);
+ result[len] = 0;
+ return result;
+}
+
+void
+pfatal_with_name (const char *name)
+{
+ perror_with_name (name);
+ delete_temp_files ();
+ exit (1);
+}
+
+static void
+perror_with_name (const char *name)
+{
+ error ("%s: %m", name);
+}
+
+static inline void
+validate_switches_from_spec (const char *spec, bool user)
+{
+ const char *p = spec;
+ char c;
+ while ((c = *p++))
+ if (c == '%' && (*p == '{' || *p == '<' || (*p == 'W' && *++p == '{')))
+ /* We have a switch spec. */
+ p = validate_switches (p + 1, user);
+}
+
+static void
+validate_all_switches (void)
+{
+ struct compiler *comp;
+ struct spec_list *spec;
+
+ for (comp = compilers; comp->spec; comp++)
+ validate_switches_from_spec (comp->spec, false);
+
+ /* Look through the linked list of specs read from the specs file. */
+ for (spec = specs; spec; spec = spec->next)
+ validate_switches_from_spec (*spec->ptr_spec, spec->user_p);
+
+ validate_switches_from_spec (link_command_spec, false);
+}
+
+/* Look at the switch-name that comes after START
+ and mark as valid all supplied switches that match it. */
+
+static const char *
+validate_switches (const char *start, bool user_spec)
+{
+ const char *p = start;
+ const char *atom;
+ size_t len;
+ int i;
+ bool suffix = false;
+ bool starred = false;
+
+#define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
+
+next_member:
+ SKIP_WHITE ();
+
+ if (*p == '!')
+ p++;
+
+ SKIP_WHITE ();
+ if (*p == '.' || *p == ',')
+ suffix = true, p++;
+
+ atom = p;
+ while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '='
+ || *p == ',' || *p == '.' || *p == '@')
+ p++;
+ len = p - atom;
+
+ if (*p == '*')
+ starred = true, p++;
+
+ SKIP_WHITE ();
+
+ if (!suffix)
+ {
+ /* Mark all matching switches as valid. */
+ for (i = 0; i < n_switches; i++)
+ if (!strncmp (switches[i].part1, atom, len)
+ && (starred || switches[i].part1[len] == '\0')
+ && (switches[i].known || user_spec))
+ switches[i].validated = true;
+ }
+
+ if (*p) p++;
+ if (*p && (p[-1] == '|' || p[-1] == '&'))
+ goto next_member;
+
+ if (*p && p[-1] == ':')
+ {
+ while (*p && *p != ';' && *p != '}')
+ {
+ if (*p == '%')
+ {
+ p++;
+ if (*p == '{' || *p == '<')
+ p = validate_switches (p+1, user_spec);
+ else if (p[0] == 'W' && p[1] == '{')
+ p = validate_switches (p+2, user_spec);
+ }
+ else
+ p++;
+ }
+
+ if (*p) p++;
+ if (*p && p[-1] == ';')
+ goto next_member;
+ }
+
+ return p;
+#undef SKIP_WHITE
+}
+
+struct mdswitchstr
+{
+ const char *str;
+ int len;
+};
+
+static struct mdswitchstr *mdswitches;
+static int n_mdswitches;
+
+/* 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 (const char *p, int len)
+{
+ struct mswitchstr
+ {
+ const char *str;
+ const char *replace;
+ int len;
+ int rep_len;
+ };
+
+ static struct mswitchstr *mswitches;
+ static int n_mswitches;
+ int i, j;
+
+ if (!mswitches)
+ {
+ struct mswitchstr *matches;
+ const 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')
+ {
+ invalid_matches:
+ fatal_error ("multilib spec %qs is invalid",
+ multilib_matches);
+ }
+ q++;
+ }
+ matches[i].len = q - matches[i].str;
+
+ matches[i].replace = ++q;
+ while (*q != ';' && *q != '\0')
+ {
+ if (*q == ' ')
+ goto invalid_matches;
+ q++;
+ }
+ matches[i].rep_len = q - matches[i].replace;
+ i++;
+ if (*q == ';')
+ q++;
+ }
+
+ /* 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
+ = XNEWVEC (struct mswitchstr, n_mdswitches + (n_switches ? n_switches : 1));
+ for (i = 0; i < n_switches; i++)
+ if ((switches[i].live_cond & SWITCH_IGNORE) == 0)
+ {
+ int xlen = strlen (switches[i].part1);
+ for (j = 0; j < cnt; j++)
+ if (xlen == matches[j].len
+ && ! strncmp (switches[i].part1, matches[j].str, xlen))
+ {
+ 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;
+ }
+ }
+
+ /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
+ on the command line nor any options mutually incompatible with
+ them. */
+ for (i = 0; i < n_mdswitches; i++)
+ {
+ const char *r;
+
+ for (q = multilib_options; *q != '\0'; q++)
+ {
+ while (*q == ' ')
+ q++;
+
+ r = q;
+ while (strncmp (q, mdswitches[i].str, mdswitches[i].len) != 0
+ || strchr (" /", q[mdswitches[i].len]) == NULL)
+ {
+ while (*q != ' ' && *q != '/' && *q != '\0')
+ q++;
+ if (*q != '/')
+ break;
+ q++;
+ }
+
+ if (*q != ' ' && *q != '\0')
+ {
+ while (*r != ' ' && *r != '\0')
+ {
+ q = r;
+ while (*q != ' ' && *q != '/' && *q != '\0')
+ q++;
+
+ if (used_arg (r, q - r))
+ break;
+
+ if (*q != '/')
+ {
+ mswitches[n_mswitches].str = mdswitches[i].str;
+ mswitches[n_mswitches].len = mdswitches[i].len;
+ mswitches[n_mswitches].replace = (char *) 0;
+ mswitches[n_mswitches].rep_len = 0;
+ n_mswitches++;
+ break;
+ }
+
+ r = q + 1;
+ }
+ 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 (const char *p, int len)
+{
+ int i;
+
+ for (i = 0; i < n_mdswitches; i++)
+ if (len == mdswitches[i].len && ! strncmp (p, mdswitches[i].str, len))
+ return 1;
+
+ 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. The format
+ of multilib_exclusions is the same, but without the preceding
+ directory. First gcc will check the exclusions, if none of the options
+ beginning with an exclamation point are present, and all of the other
+ options are present, then we will ignore this completely. Passing
+ that, gcc will consider each multilib_select in turn using the same
+ rules for matching the options. If a match is found, that subdirectory
+ will be used.
+ A subdirectory name is optionally followed by a colon and the corresponding
+ multiarch name. */
+
+static void
+set_multilib_dir (void)
+{
+ const char *p;
+ unsigned int this_path_len;
+ const char *this_path, *this_arg;
+ const char *start, *end;
+ int not_arg;
+ int ok, ndfltok, first;
+
+ n_mdswitches = 0;
+ start = multilib_defaults;
+ while (*start == ' ' || *start == '\t')
+ start++;
+ while (*start != '\0')
+ {
+ n_mdswitches++;
+ while (*start != ' ' && *start != '\t' && *start != '\0')
+ start++;
+ while (*start == ' ' || *start == '\t')
+ start++;
+ }
+
+ if (n_mdswitches)
+ {
+ int i = 0;
+
+ mdswitches = XNEWVEC (struct mdswitchstr, n_mdswitches);
+ 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++)
+ ;
+
+ obstack_grow (&multilib_obstack, start, end - start);
+ obstack_1grow (&multilib_obstack, 0);
+ mdswitches[i].str = XOBFINISH (&multilib_obstack, const char *);
+ mdswitches[i++].len = end - start;
+
+ if (*end == '\0')
+ break;
+ }
+ }
+
+ p = multilib_exclusions;
+ while (*p != '\0')
+ {
+ /* Ignore newlines. */
+ if (*p == '\n')
+ {
+ ++p;
+ continue;
+ }
+
+ /* Check the arguments. */
+ ok = 1;
+ while (*p != ';')
+ {
+ if (*p == '\0')
+ {
+ invalid_exclusions:
+ fatal_error ("multilib exclusions %qs is invalid",
+ multilib_exclusions);
+ }
+
+ if (! ok)
+ {
+ ++p;
+ continue;
+ }
+
+ this_arg = p;
+ while (*p != ' ' && *p != ';')
+ {
+ if (*p == '\0')
+ goto invalid_exclusions;
+ ++p;
+ }
+
+ if (*this_arg != '!')
+ not_arg = 0;
+ else
+ {
+ not_arg = 1;
+ ++this_arg;
+ }
+
+ ok = used_arg (this_arg, p - this_arg);
+ if (not_arg)
+ ok = ! ok;
+
+ if (*p == ' ')
+ ++p;
+ }
+
+ if (ok)
+ return;
+
+ ++p;
+ }
+
+ first = 1;
+ p = multilib_select;
+
+ /* Append multilib reuse rules if any. With those rules, we can reuse
+ one multilib for certain different options sets. */
+ if (strlen (multilib_reuse) > 0)
+ p = concat (p, multilib_reuse, NULL);
+
+ while (*p != '\0')
+ {
+ /* Ignore newlines. */
+ if (*p == '\n')
+ {
+ ++p;
+ continue;
+ }
+
+ /* Get the initial path. */
+ this_path = p;
+ while (*p != ' ')
+ {
+ if (*p == '\0')
+ {
+ invalid_select:
+ fatal_error ("multilib select %qs %qs is invalid",
+ multilib_select, multilib_reuse);
+ }
+ ++p;
+ }
+ this_path_len = p - this_path;
+
+ /* Check the arguments. */
+ ok = 1;
+ ndfltok = 1;
+ ++p;
+ while (*p != ';')
+ {
+ if (*p == '\0')
+ goto invalid_select;
+
+ if (! ok)
+ {
+ ++p;
+ continue;
+ }
+
+ this_arg = p;
+ while (*p != ' ' && *p != ';')
+ {
+ if (*p == '\0')
+ goto invalid_select;
+ ++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. */
+ ok = used_arg (this_arg, p - this_arg);
+ if (not_arg)
+ ok = ! ok;
+
+ if (! ok)
+ ndfltok = 0;
+
+ if (default_arg (this_arg, p - this_arg))
+ ok = 1;
+
+ if (*p == ' ')
+ ++p;
+ }
+
+ if (ok && first)
+ {
+ if (this_path_len != 1
+ || this_path[0] != '.')
+ {
+ char *new_multilib_dir = XNEWVEC (char, this_path_len + 1);
+ char *q;
+
+ strncpy (new_multilib_dir, this_path, this_path_len);
+ new_multilib_dir[this_path_len] = '\0';
+ q = strchr (new_multilib_dir, ':');
+ if (q != NULL)
+ *q = '\0';
+ multilib_dir = new_multilib_dir;
+ }
+ first = 0;
+ }
+
+ if (ndfltok)
+ {
+ const char *q = this_path, *end = this_path + this_path_len;
+
+ while (q < end && *q != ':')
+ q++;
+ if (q < end)
+ {
+ const char *q2 = q + 1, *ml_end = end;
+ char *new_multilib_os_dir;
+
+ while (q2 < end && *q2 != ':')
+ q2++;
+ if (*q2 == ':')
+ ml_end = q2;
+ new_multilib_os_dir = XNEWVEC (char, ml_end - q);
+ memcpy (new_multilib_os_dir, q + 1, ml_end - q - 1);
+ new_multilib_os_dir[ml_end - q - 1] = '\0';
+ multilib_os_dir = *new_multilib_os_dir ? new_multilib_os_dir : ".";
+
+ if (q2 < end && *q2 == ':')
+ {
+ char *new_multiarch_dir = XNEWVEC (char, end - q2);
+ memcpy (new_multiarch_dir, q2 + 1, end - q2 - 1);
+ new_multiarch_dir[end - q2 - 1] = '\0';
+ multiarch_dir = new_multiarch_dir;
+ }
+ break;
+ }
+ }
+
+ ++p;
+ }
+
+ if (multilib_dir == NULL && multilib_os_dir != NULL
+ && strcmp (multilib_os_dir, ".") == 0)
+ {
+ free (CONST_CAST (char *, multilib_os_dir));
+ multilib_os_dir = NULL;
+ }
+ else if (multilib_dir != NULL && multilib_os_dir == NULL)
+ multilib_os_dir = multilib_dir;
+}
+
+/* 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. Also, we leave out ones that match
+ the exclusions. */
+
+static void
+print_multilib_info (void)
+{
+ const char *p = multilib_select;
+ const char *last_path = 0, *this_path;
+ int skip;
+ unsigned int last_path_len = 0;
+
+ while (*p != '\0')
+ {
+ skip = 0;
+ /* Ignore newlines. */
+ if (*p == '\n')
+ {
+ ++p;
+ continue;
+ }
+
+ /* Get the initial path. */
+ this_path = p;
+ while (*p != ' ')
+ {
+ if (*p == '\0')
+ {
+ invalid_select:
+ fatal_error ("multilib select %qs is invalid", multilib_select);
+ }
+
+ ++p;
+ }
+
+ /* When --disable-multilib was used but target defines
+ MULTILIB_OSDIRNAMES, entries starting with .: (and not starting
+ with .:: for multiarch configurations) are there just to find
+ multilib_os_dir, so skip them from output. */
+ if (this_path[0] == '.' && this_path[1] == ':' && this_path[2] != ':')
+ skip = 1;
+
+ /* Check for matches with the multilib_exclusions. We don't bother
+ with the '!' in either list. If any of the exclusion rules match
+ all of its options with the select rule, we skip it. */
+ {
+ const char *e = multilib_exclusions;
+ const char *this_arg;
+
+ while (*e != '\0')
+ {
+ int m = 1;
+ /* Ignore newlines. */
+ if (*e == '\n')
+ {
+ ++e;
+ continue;
+ }
+
+ /* Check the arguments. */
+ while (*e != ';')
+ {
+ const char *q;
+ int mp = 0;
+
+ if (*e == '\0')
+ {
+ invalid_exclusion:
+ fatal_error ("multilib exclusion %qs is invalid",
+ multilib_exclusions);
+ }
+
+ if (! m)
+ {
+ ++e;
+ continue;
+ }
+
+ this_arg = e;
+
+ while (*e != ' ' && *e != ';')
+ {
+ if (*e == '\0')
+ goto invalid_exclusion;
+ ++e;
+ }
+
+ q = p + 1;
+ while (*q != ';')
+ {
+ const char *arg;
+ int len = e - this_arg;
+
+ if (*q == '\0')
+ goto invalid_select;
+
+ arg = q;
+
+ while (*q != ' ' && *q != ';')
+ {
+ if (*q == '\0')
+ goto invalid_select;
+ ++q;
+ }
+
+ if (! strncmp (arg, this_arg,
+ (len < q - arg) ? q - arg : len)
+ || default_arg (this_arg, e - this_arg))
+ {
+ mp = 1;
+ break;
+ }
+
+ if (*q == ' ')
+ ++q;
+ }
+
+ if (! mp)
+ m = 0;
+
+ if (*e == ' ')
+ ++e;
+ }
+
+ if (m)
+ {
+ skip = 1;
+ break;
+ }
+
+ if (*e != '\0')
+ ++e;
+ }
+ }
+
+ if (! skip)
+ {
+ /* If this is a duplicate, skip it. */
+ skip = (last_path != 0
+ && (unsigned int) (p - this_path) == last_path_len
+ && ! filename_ncmp (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)
+ {
+ const char *q;
+
+ q = p + 1;
+ while (*q != ';')
+ {
+ const char *arg;
+
+ if (*q == '\0')
+ goto invalid_select;
+
+ if (*q == '!')
+ arg = NULL;
+ else
+ arg = q;
+
+ while (*q != ' ' && *q != ';')
+ {
+ if (*q == '\0')
+ goto invalid_select;
+ ++q;
+ }
+
+ if (arg != NULL
+ && default_arg (arg, q - arg))
+ {
+ skip = 1;
+ break;
+ }
+
+ if (*q == ' ')
+ ++q;
+ }
+ }
+
+ if (! skip)
+ {
+ const char *p1;
+
+ for (p1 = last_path; p1 < p && *p1 != ':'; p1++)
+ putchar (*p1);
+ putchar (';');
+ }
+
+ ++p;
+ while (*p != ';')
+ {
+ int use_arg;
+
+ if (*p == '\0')
+ goto invalid_select;
+
+ if (skip)
+ {
+ ++p;
+ continue;
+ }
+
+ use_arg = *p != '!';
+
+ if (use_arg)
+ putchar ('@');
+
+ while (*p != ' ' && *p != ';')
+ {
+ if (*p == '\0')
+ goto invalid_select;
+ 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;
+ const 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;
+ }
+}
+
+/* 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;
+ char *result;
+ char *ptr;
+ size_t len;
+
+ if (argc != 2)
+ return NULL;
+
+ value = getenv (argv[0]);
+ if (!value)
+ fatal_error ("environment variable %qs not defined", argv[0]);
+
+ /* We have to escape every character of the environment variable so
+ they are not interpreted as active spec characters. A
+ particularly painful case is when we are reading a variable
+ holding a windows path complete with \ separators. */
+ len = strlen (value) * 2 + strlen (argv[1]) + 1;
+ result = XNEWVAR (char, len);
+ for (ptr = result; *value; ptr += 2)
+ {
+ ptr[0] = '\\';
+ ptr[1] = *value++;
+ }
+
+ strcpy (ptr, argv[1]);
+
+ return result;
+}
+
+/* if-exists built-in spec function.
+
+ Checks to see if the file specified by the absolute pathname in
+ ARGS exists. Returns that pathname if found.
+
+ The usual use for this function is to check for a library file
+ (whose name has been expanded with %s). */
+
+static const char *
+if_exists_spec_function (int argc, const char **argv)
+{
+ /* Must have only one argument. */
+ if (argc == 1 && IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
+ return argv[0];
+
+ return NULL;
+}
+
+/* if-exists-else built-in spec function.
+
+ This is like if-exists, but takes an additional argument which
+ is returned if the first argument does not exist. */
+
+static const char *
+if_exists_else_spec_function (int argc, const char **argv)
+{
+ /* Must have exactly two arguments. */
+ if (argc != 2)
+ return NULL;
+
+ if (IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
+ return argv[0];
+
+ return argv[1];
+}
+
+/* sanitize built-in spec function.
+
+ This returns non-NULL, if sanitizing address, thread or
+ any of the undefined behavior sanitizers. */
+
+static const char *
+sanitize_spec_function (int argc, const char **argv)
+{
+ if (argc != 1)
+ return NULL;
+
+ if (strcmp (argv[0], "address") == 0)
+ return (flag_sanitize & SANITIZE_USER_ADDRESS) ? "" : NULL;
+ if (strcmp (argv[0], "kernel-address") == 0)
+ return (flag_sanitize & SANITIZE_KERNEL_ADDRESS) ? "" : NULL;
+ if (strcmp (argv[0], "thread") == 0)
+ return (flag_sanitize & SANITIZE_THREAD) ? "" : NULL;
+ if (strcmp (argv[0], "undefined") == 0)
+ return (flag_sanitize & SANITIZE_UNDEFINED) ? "" : NULL;
+ if (strcmp (argv[0], "leak") == 0)
+ return ((flag_sanitize
+ & (SANITIZE_ADDRESS | SANITIZE_LEAK | SANITIZE_THREAD))
+ == SANITIZE_LEAK) ? "" : NULL;
+ return NULL;
+}
+
+/* replace-outfile built-in spec function.
+
+ This looks for the first argument in the outfiles array's name and
+ replaces it with the second argument. */
+
+static const char *
+replace_outfile_spec_function (int argc, const char **argv)
+{
+ int i;
+ /* Must have exactly two arguments. */
+ if (argc != 2)
+ abort ();
+
+ for (i = 0; i < n_infiles; i++)
+ {
+ if (outfiles[i] && !filename_cmp (outfiles[i], argv[0]))
+ outfiles[i] = xstrdup (argv[1]);
+ }
+ return NULL;
+}
+
+/* remove-outfile built-in spec function.
+ *
+ * This looks for the first argument in the outfiles array's name and
+ * removes it. */
+
+static const char *
+remove_outfile_spec_function (int argc, const char **argv)
+{
+ int i;
+ /* Must have exactly one argument. */
+ if (argc != 1)
+ abort ();
+
+ for (i = 0; i < n_infiles; i++)
+ {
+ if (outfiles[i] && !filename_cmp (outfiles[i], argv[0]))
+ outfiles[i] = NULL;
+ }
+ return NULL;
+}
+
+/* Given two version numbers, compares the two numbers.
+ A version number must match the regular expression
+ ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
+*/
+static int
+compare_version_strings (const char *v1, const char *v2)
+{
+ int rresult;
+ regex_t r;
+
+ if (regcomp (&r, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
+ REG_EXTENDED | REG_NOSUB) != 0)
+ abort ();
+ rresult = regexec (&r, v1, 0, NULL, 0);
+ if (rresult == REG_NOMATCH)
+ fatal_error ("invalid version number %qs", v1);
+ else if (rresult != 0)
+ abort ();
+ rresult = regexec (&r, v2, 0, NULL, 0);
+ if (rresult == REG_NOMATCH)
+ fatal_error ("invalid version number %qs", v2);
+ else if (rresult != 0)
+ abort ();
+
+ return strverscmp (v1, v2);
+}
+
+
+/* version_compare built-in spec function.
+
+ This takes an argument of the following form:
+
+ <comparison-op> <arg1> [<arg2>] <switch> <result>
+
+ and produces "result" if the comparison evaluates to true,
+ and nothing if it doesn't.
+
+ The supported <comparison-op> values are:
+
+ >= true if switch is a later (or same) version than arg1
+ !> opposite of >=
+ < true if switch is an earlier version than arg1
+ !< opposite of <
+ >< true if switch is arg1 or later, and earlier than arg2
+ <> true if switch is earlier than arg1 or is arg2 or later
+
+ If the switch is not present, the condition is false unless
+ the first character of the <comparison-op> is '!'.
+
+ For example,
+ %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
+ adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
+
+static const char *
+version_compare_spec_function (int argc, const char **argv)
+{
+ int comp1, comp2;
+ size_t switch_len;
+ const char *switch_value = NULL;
+ int nargs = 1, i;
+ bool result;
+
+ if (argc < 3)
+ fatal_error ("too few arguments to %%:version-compare");
+ if (argv[0][0] == '\0')
+ abort ();
+ if ((argv[0][1] == '<' || argv[0][1] == '>') && argv[0][0] != '!')
+ nargs = 2;
+ if (argc != nargs + 3)
+ fatal_error ("too many arguments to %%:version-compare");
+
+ switch_len = strlen (argv[nargs + 1]);
+ for (i = 0; i < n_switches; i++)
+ if (!strncmp (switches[i].part1, argv[nargs + 1], switch_len)
+ && check_live_switch (i, switch_len))
+ switch_value = switches[i].part1 + switch_len;
+
+ if (switch_value == NULL)
+ comp1 = comp2 = -1;
+ else
+ {
+ comp1 = compare_version_strings (switch_value, argv[1]);
+ if (nargs == 2)
+ comp2 = compare_version_strings (switch_value, argv[2]);
+ else
+ comp2 = -1; /* This value unused. */
+ }
+
+ switch (argv[0][0] << 8 | argv[0][1])
+ {
+ case '>' << 8 | '=':
+ result = comp1 >= 0;
+ break;
+ case '!' << 8 | '<':
+ result = comp1 >= 0 || switch_value == NULL;
+ break;
+ case '<' << 8:
+ result = comp1 < 0;
+ break;
+ case '!' << 8 | '>':
+ result = comp1 < 0 || switch_value == NULL;
+ break;
+ case '>' << 8 | '<':
+ result = comp1 >= 0 && comp2 < 0;
+ break;
+ case '<' << 8 | '>':
+ result = comp1 < 0 || comp2 >= 0;
+ break;
+
+ default:
+ fatal_error ("unknown operator %qs 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, true);
+ read_specs (file ? file : argv[0], false, false);
+
+ return NULL;
+}
+
+/* %:find-file spec function. This function replaces its argument by
+ the file found through find_file, that is the -print-file-name gcc
+ program option. */
+static const char *
+find_file_spec_function (int argc, const char **argv)
+{
+ const char *file;
+
+ if (argc != 1)
+ abort ();
+
+ file = find_file (argv[0]);
+ return file;
+}
+
+
+/* %:find-plugindir spec function. This function replaces its argument
+ by the -iplugindir=<dir> option. `dir' is found through find_file, that
+ is the -print-file-name gcc program option. */
+static const char *
+find_plugindir_spec_function (int argc, const char **argv ATTRIBUTE_UNUSED)
+{
+ const char *option;
+
+ if (argc != 0)
+ abort ();
+
+ option = concat ("-iplugindir=", find_file ("plugin"), NULL);
+ return option;
+}
+
+
+/* %: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;
+}
+
+/* Get a random number for -frandom-seed */
+
+static unsigned HOST_WIDE_INT
+get_random_number (void)
+{
+ unsigned HOST_WIDE_INT ret = 0;
+ int fd;
+
+ fd = open ("/dev/urandom", O_RDONLY);
+ if (fd >= 0)
+ {
+ read (fd, &ret, sizeof (HOST_WIDE_INT));
+ close (fd);
+ if (ret)
+ return ret;
+ }
+
+ /* Get some more or less random data. */
+#ifdef HAVE_GETTIMEOFDAY
+ {
+ struct timeval tv;
+
+ gettimeofday (&tv, NULL);
+ ret = tv.tv_sec * 1000 + tv.tv_usec / 1000;
+ }
+#else
+ {
+ time_t now = time (NULL);
+
+ if (now != (time_t)-1)
+ ret = (unsigned) now;
+ }
+#endif
+
+ return ret ^ getpid ();
+}
+
+/* %:compare-debug-dump-opt spec function. Save the last argument,
+ expected to be the last -fdump-final-insns option, or generate a
+ temporary. */
+
+static const char *
+compare_debug_dump_opt_spec_function (int arg,
+ const char **argv ATTRIBUTE_UNUSED)
+{
+ char *ret;
+ char *name;
+ int which;
+ static char random_seed[HOST_BITS_PER_WIDE_INT / 4 + 3];
+
+ if (arg != 0)
+ fatal_error ("too many arguments to %%:compare-debug-dump-opt");
+
+ do_spec_2 ("%{fdump-final-insns=*:%*}");
+ do_spec_1 (" ", 0, NULL);
+
+ if (argbuf.length () > 0
+ && strcmp (argv[argbuf.length () - 1], "."))
+ {
+ if (!compare_debug)
+ return NULL;
+
+ name = xstrdup (argv[argbuf.length () - 1]);
+ ret = NULL;
+ }
+ else
+ {
+ const char *ext = NULL;
+
+ if (argbuf.length () > 0)
+ {
+ do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
+ ext = ".gkd";
+ }
+ else if (!compare_debug)
+ return NULL;
+ else
+ do_spec_2 ("%g.gkd");
+
+ do_spec_1 (" ", 0, NULL);
+
+ gcc_assert (argbuf.length () > 0);
+
+ name = concat (argbuf.last (), ext, NULL);
+
+ ret = concat ("-fdump-final-insns=", name, NULL);
+ }
+
+ which = compare_debug < 0;
+ debug_check_temp_file[which] = name;
+
+ if (!which)
+ {
+ unsigned HOST_WIDE_INT value = get_random_number ();
+
+ sprintf (random_seed, HOST_WIDE_INT_PRINT_HEX, value);
+ }
+
+ if (*random_seed)
+ {
+ char *tmp = ret;
+ ret = concat ("%{!frandom-seed=*:-frandom-seed=", random_seed, "} ",
+ ret, NULL);
+ free (tmp);
+ }
+
+ if (which)
+ *random_seed = 0;
+
+ return ret;
+}
+
+static const char *debug_auxbase_opt;
+
+/* %:compare-debug-self-opt spec function. Expands to the options
+ that are to be passed in the second compilation of
+ compare-debug. */
+
+static const char *
+compare_debug_self_opt_spec_function (int arg,
+ const char **argv ATTRIBUTE_UNUSED)
+{
+ if (arg != 0)
+ fatal_error ("too many arguments to %%:compare-debug-self-opt");
+
+ if (compare_debug >= 0)
+ return NULL;
+
+ do_spec_2 ("%{c|S:%{o*:%*}}");
+ do_spec_1 (" ", 0, NULL);
+
+ if (argbuf.length () > 0)
+ debug_auxbase_opt = concat ("-auxbase-strip ",
+ argbuf.last (),
+ NULL);
+ else
+ debug_auxbase_opt = NULL;
+
+ return concat ("\
+%<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
+%<fdump-final-insns=* -w -S -o %j \
+%{!fcompare-debug-second:-fcompare-debug-second} \
+", compare_debug_opt, NULL);
+}
+
+/* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
+ options that are to be passed in the second compilation of
+ compare-debug. It expects, as an argument, the basename of the
+ current input file name, with the .gk suffix appended to it. */
+
+static const char *
+compare_debug_auxbase_opt_spec_function (int arg,
+ const char **argv)
+{
+ char *name;
+ int len;
+
+ if (arg == 0)
+ fatal_error ("too few arguments to %%:compare-debug-auxbase-opt");
+
+ if (arg != 1)
+ fatal_error ("too many arguments to %%:compare-debug-auxbase-opt");
+
+ if (compare_debug >= 0)
+ return NULL;
+
+ len = strlen (argv[0]);
+ if (len < 3 || strcmp (argv[0] + len - 3, ".gk") != 0)
+ fatal_error ("argument to %%:compare-debug-auxbase-opt "
+ "does not end in .gk");
+
+ if (debug_auxbase_opt)
+ return debug_auxbase_opt;
+
+#define OPT "-auxbase "
+
+ len -= 3;
+ name = (char*) xmalloc (sizeof (OPT) + len);
+ memcpy (name, OPT, sizeof (OPT) - 1);
+ memcpy (name + sizeof (OPT) - 1, argv[0], len);
+ name[sizeof (OPT) - 1 + len] = '\0';
+
+#undef OPT
+
+ return name;
+}
+
+/* %:pass-through-libs spec function. Finds all -l options and input
+ file names in the lib spec passed to it, and makes a list of them
+ prepended with the plugin option to cause them to be passed through
+ to the final link after all the new object files have been added. */
+
+const char *
+pass_through_libs_spec_func (int argc, const char **argv)
+{
+ char *prepended = xstrdup (" ");
+ int n;
+ /* Shlemiel the painter's algorithm. Innately horrible, but at least
+ we know that there will never be more than a handful of strings to
+ concat, and it's only once per run, so it's not worth optimising. */
+ for (n = 0; n < argc; n++)
+ {
+ char *old = prepended;
+ /* Anything that isn't an option is a full path to an output
+ file; pass it through if it ends in '.a'. Among options,
+ pass only -l. */
+ if (argv[n][0] == '-' && argv[n][1] == 'l')
+ {
+ const char *lopt = argv[n] + 2;
+ /* Handle both joined and non-joined -l options. If for any
+ reason there's a trailing -l with no joined or following
+ arg just discard it. */
+ if (!*lopt && ++n >= argc)
+ break;
+ else if (!*lopt)
+ lopt = argv[n];
+ prepended = concat (prepended, "-plugin-opt=-pass-through=-l",
+ lopt, " ", NULL);
+ }
+ else if (!strcmp (".a", argv[n] + strlen (argv[n]) - 2))
+ {
+ prepended = concat (prepended, "-plugin-opt=-pass-through=",
+ argv[n], " ", NULL);
+ }
+ if (prepended != old)
+ free (old);
+ }
+ return prepended;
+}
+
+/* %:replace-extension spec function. Replaces the extension of the
+ first argument with the second argument. */
+
+const char *
+replace_extension_spec_func (int argc, const char **argv)
+{
+ char *name;
+ char *p;
+ char *result;
+ int i;
+
+ if (argc != 2)
+ fatal_error ("too few arguments to %%:replace-extension");
+
+ name = xstrdup (argv[0]);
+
+ for (i = strlen (name) - 1; i >= 0; i--)
+ if (IS_DIR_SEPARATOR (name[i]))
+ break;
+
+ p = strrchr (name + i + 1, '.');
+ if (p != NULL)
+ *p = '\0';
+
+ result = concat (name, argv[1], NULL);
+
+ free (name);
+ return result;
+}
+
+/* Insert backslash before spaces in ORIG (usually a file path), to
+ avoid being broken by spec parser.
+
+ This function is needed as do_spec_1 treats white space (' ' and '\t')
+ as the end of an argument. But in case of -plugin /usr/gcc install/xxx.so,
+ the file name should be treated as a single argument rather than being
+ broken into multiple. Solution is to insert '\\' before the space in a
+ file name.
+
+ This function converts and only converts all occurrence of ' '
+ to '\\' + ' ' and '\t' to '\\' + '\t'. For example:
+ "a b" -> "a\\ b"
+ "a b" -> "a\\ \\ b"
+ "a\tb" -> "a\\\tb"
+ "a\\ b" -> "a\\\\ b"
+
+ orig: input null-terminating string that was allocated by xalloc. The
+ memory it points to might be freed in this function. Behavior undefined
+ if ORIG wasn't xalloced or was freed already at entry.
+
+ Return: ORIG if no conversion needed. Otherwise a newly allocated string
+ that was converted from ORIG. */
+
+static char *
+convert_white_space (char *orig)
+{
+ int len, number_of_space = 0;
+
+ for (len = 0; orig[len]; len++)
+ if (orig[len] == ' ' || orig[len] == '\t') number_of_space++;
+
+ if (number_of_space)
+ {
+ char *new_spec = (char *) xmalloc (len + number_of_space + 1);
+ int j, k;
+ for (j = 0, k = 0; j <= len; j++, k++)
+ {
+ if (orig[j] == ' ' || orig[j] == '\t')
+ new_spec[k++] = '\\';
+ new_spec[k] = orig[j];
+ }
+ free (orig);
+ return new_spec;
+ }
+ else
+ return orig;
+}
diff -NBaur gcc-4.9.2/libcpp/Makefile.in gcc-4.9.2-arm/libcpp/Makefile.in
--- gcc-4.9.2/libcpp/Makefile.in 2014-10-30 08:28:58.000000000 +0000
+++ gcc-4.9.2-arm/libcpp/Makefile.in 2014-11-20 10:47:00.212883000 +0000
@@ -208,8 +208,7 @@
# Note that we put the dependencies into a .Tpo file, then move them
# into place if the compile succeeds. We need this because gcc does
# not atomically write the dependency output file.
-COMPILE = $(COMPILE.base) -o $@ -MT $@ -MMD -MP -MF $(DEPDIR)/$*.Tpo
-POSTCOMPILE = @mv $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
+COMPILE = $(COMPILE.base) -o $@
else
COMPILE = source='$<' object='$@' libtool=no DEPDIR=$(DEPDIR) $(DEPMODE) \
$(depcomp) $(COMPILE.base)
diff -NBaur gcc-4.9.2/libgcc/config/arm/t-bpabi gcc-4.9.2-arm/libgcc/config/arm/t-bpabi
--- gcc-4.9.2/libgcc/config/arm/t-bpabi 2012-08-17 16:06:06.000000000 +0100
+++ gcc-4.9.2-arm/libgcc/config/arm/t-bpabi 2014-11-20 10:47:00.212883000 +0000
@@ -17,4 +17,4 @@
# On ARM, specifying -fnon-call-exceptions will needlessly pull in
# the unwinder in simple programs which use 64-bit division. Omitting
# the option is safe.
-LIB2_DIVMOD_EXCEPTION_FLAGS := -fexceptions
+LIB2_DIVMOD_EXCEPTION_FLAGS := -fno-exceptions
diff -NBaur gcc-4.9.2/libgcc/crtstuff.c gcc-4.9.2-arm/libgcc/crtstuff.c
--- gcc-4.9.2/libgcc/crtstuff.c 2014-03-10 18:31:20.000000000 +0000
+++ gcc-4.9.2-arm/libgcc/crtstuff.c 2014-11-20 10:47:00.212883000 +0000
@@ -47,7 +47,7 @@
/* Target machine header files require this define. */
#define IN_LIBGCC2
-
+#define USED_FOR_TARGET
/* FIXME: Including auto-host is incorrect, but until we have
identified the set of defines that need to go into auto-target.h,
this will have to do. */
diff -NBaur gcc-4.9.2/libgcc/Makefile.in gcc-4.9.2-arm/libgcc/Makefile.in
--- gcc-4.9.2/libgcc/Makefile.in 2014-01-08 16:37:08.000000000 +0000
+++ gcc-4.9.2-arm/libgcc/Makefile.in 2014-11-20 10:47:00.216883000 +0000
@@ -816,7 +816,7 @@
# libgcc_eh.a, only LIB2ADDEH matters. If we do, only LIB2ADDEHSTATIC and
# LIB2ADDEHSHARED matter. (Usually all three are identical.)
-c_flags := -fexceptions
+c_flags := -fno-exceptions
ifeq ($(enable_shared),yes)
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