8083 lines
226 KiB
C
8083 lines
226 KiB
C
/* Compiler driver program that can handle many languages.
|
||
Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
|
||
1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
|
||
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.
|
||
|
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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". */
|
||
|
||
/* A Short Introduction to Adding a Command-Line Option.
|
||
|
||
Before adding a command-line option, consider if it is really
|
||
necessary. Each additional command-line option adds complexity and
|
||
is difficult to remove in subsequent versions.
|
||
|
||
In the following, consider adding the command-line argument
|
||
`--bar'.
|
||
|
||
1. Each command-line option is specified in the specs file. The
|
||
notation is described below in the comment entitled "The Specs
|
||
Language". Read it.
|
||
|
||
2. In this file, add an entry to "option_map" equating the long
|
||
`--' argument version and any shorter, single letter version. Read
|
||
the comments in the declaration of "struct option_map" for an
|
||
explanation. Do not omit the first `-'.
|
||
|
||
3. Look in the "specs" file to determine which program or option
|
||
list should be given the argument, e.g., "cc1_options". Add the
|
||
appropriate syntax for the shorter option version to the
|
||
corresponding "const char *" entry in this file. Omit the first
|
||
`-' from the option. For example, use `-bar', rather than `--bar'.
|
||
|
||
4. If the argument takes an argument, e.g., `--baz argument1',
|
||
modify either DEFAULT_SWITCH_TAKES_ARG or
|
||
DEFAULT_WORD_SWITCH_TAKES_ARG in gcc.h. Omit the first `-'
|
||
from `--baz'.
|
||
|
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5. Document the option in this file's display_help(). If the
|
||
option is passed to a subprogram, modify its corresponding
|
||
function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
|
||
instead.
|
||
|
||
6. Compile and test. Make sure that your new specs file is being
|
||
read. For example, use a debugger to investigate the value of
|
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"specs_file" in main(). */
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#include "config.h"
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#include "system.h"
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#include "coretypes.h"
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||
#include "multilib.h" /* before tm.h */
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#include "tm.h"
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||
#include <signal.h>
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||
#if ! defined( SIGCHLD ) && defined( SIGCLD )
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||
# define SIGCHLD SIGCLD
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#endif
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#include "xregex.h"
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||
#include "obstack.h"
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#include "intl.h"
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#include "prefix.h"
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#include "gcc.h"
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#include "flags.h"
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#include "opts.h"
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|
||
/* By default there is no special suffix for target executables. */
|
||
/* FIXME: when autoconf is fixed, remove the host check - dj */
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#if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
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#define HAVE_TARGET_EXECUTABLE_SUFFIX
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#endif
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|
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/* By default there is no special suffix for host executables. */
|
||
#ifdef HOST_EXECUTABLE_SUFFIX
|
||
#define HAVE_HOST_EXECUTABLE_SUFFIX
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#else
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#define HOST_EXECUTABLE_SUFFIX ""
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||
#endif
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||
|
||
/* By default, the suffix for target object files is ".o". */
|
||
#ifdef TARGET_OBJECT_SUFFIX
|
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#define HAVE_TARGET_OBJECT_SUFFIX
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#else
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#define TARGET_OBJECT_SUFFIX ".o"
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#endif
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||
|
||
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"
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||
#endif
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||
|
||
#ifndef HAVE_KILL
|
||
#define kill(p,s) raise(s)
|
||
#endif
|
||
|
||
/* If a stage of compilation returns an exit status >= 1,
|
||
compilation of that file ceases. */
|
||
|
||
#define MIN_FATAL_STATUS 1
|
||
|
||
/* Flag 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;
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||
|
||
/* Flag saying to pass the greatest exit code returned by a sub-process
|
||
to the calling program. */
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||
static int pass_exit_codes;
|
||
|
||
/* Definition of string containing the arguments given to configure. */
|
||
#include "configargs.h"
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||
|
||
/* Flag saying to print the directories gcc will search through looking for
|
||
programs, libraries, etc. */
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||
|
||
static int print_search_dirs;
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||
|
||
/* Flag saying to print the full filename of this file
|
||
as found through our usual search mechanism. */
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||
|
||
static const char *print_file_name = NULL;
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||
|
||
/* As print_file_name, but search for executable file. */
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||
|
||
static const char *print_prog_name = NULL;
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||
|
||
/* Flag saying to print the relative path we'd use to
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||
find libgcc.a given the current compiler flags. */
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||
|
||
static int print_multi_directory;
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||
|
||
static int print_sysroot;
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||
|
||
/* Flag saying to print the relative path we'd use to
|
||
find OS libraries given the current compiler flags. */
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||
|
||
static int print_multi_os_directory;
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||
|
||
/* Flag saying to print the list of subdirectories and
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||
compiler flags used to select them in a standard form. */
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||
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||
static int print_multi_lib;
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||
/* Flag saying to print the command line options understood by gcc and its
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sub-processes. */
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||
static int print_help_list;
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||
|
||
/* Flag saying to print the sysroot suffix used for searching for
|
||
headers. */
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||
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static int print_sysroot_headers_suffix;
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||
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||
/* Flag indicating whether we should print the command and arguments */
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||
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||
static int verbose_flag;
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|
||
/* Flag indicating whether we should ONLY print the command and
|
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arguments (like verbose_flag) without executing the command.
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||
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. */
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||
static int verbose_only_flag;
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||
/* Flag indicating how to print command line options of sub-processes. */
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||
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||
static int print_subprocess_help;
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||
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||
/* Flag indicating whether we should report subprocess execution times
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||
(if this is supported by the system - see pexecute.c). */
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||
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||
static int report_times;
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||
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||
/* Nonzero means place this string before uses of /, so that include
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||
and library files can be found in an alternate location. */
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||
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#ifdef TARGET_SYSTEM_ROOT
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static const char *target_system_root = TARGET_SYSTEM_ROOT;
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#else
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static const char *target_system_root = 0;
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#endif
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/* Nonzero means pass the updated target_system_root to the compiler. */
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||
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static int target_system_root_changed;
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||
|
||
/* Nonzero means append this string to target_system_root. */
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||
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||
static const char *target_sysroot_suffix = 0;
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||
|
||
/* Nonzero means append this string to target_system_root for headers. */
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||
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||
static const char *target_sysroot_hdrs_suffix = 0;
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||
|
||
/* Nonzero means write "temp" files in source directory
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||
and use the source file's name in them, and don't delete them. */
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static int save_temps_flag;
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||
|
||
/* Nonzero means pass multiple source files to the compiler at one time. */
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||
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||
static int combine_flag = 0;
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||
|
||
/* Nonzero means use pipes to communicate between subprocesses.
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||
Overridden by either of the above two flags. */
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||
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||
static int use_pipes;
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||
|
||
/* The compiler version. */
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||
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||
static const char *compiler_version;
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||
|
||
/* The target version specified with -V */
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||
static const char *const spec_version = DEFAULT_TARGET_VERSION;
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||
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||
/* The target machine specified with -b. */
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||
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static const char *spec_machine = DEFAULT_TARGET_MACHINE;
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/* Nonzero if cross-compiling.
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||
When -b is used, the value comes from the `specs' file. */
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||
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#ifdef CROSS_DIRECTORY_STRUCTURE
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||
static const char *cross_compile = "1";
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#else
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||
static const char *cross_compile = "0";
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||
#endif
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||
|
||
#ifdef MODIFY_TARGET_NAME
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||
|
||
/* Information on how to alter the target name based on a command-line
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||
switch. The only case we support now is simply appending or deleting a
|
||
string to or from the end of the first part of the configuration name. */
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||
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||
static const struct modify_target
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{
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||
const char *const sw;
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||
const enum add_del {ADD, DELETE} add_del;
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||
const char *const str;
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||
}
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||
modify_target[] = MODIFY_TARGET_NAME;
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||
#endif
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|
||
/* The number of errors that have occurred; the link phase will not be
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||
run if this is nonzero. */
|
||
static int error_count = 0;
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||
|
||
/* Greatest exit code of sub-processes that has been encountered up to
|
||
now. */
|
||
static int greatest_status = 1;
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||
|
||
/* This is the obstack which we use to allocate many strings. */
|
||
|
||
static struct obstack obstack;
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||
|
||
/* 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. */
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||
|
||
static struct obstack collect_obstack;
|
||
|
||
/* This is a list of a wrapper program and its arguments.
|
||
e.g. wrapper_string of "strace,-c"
|
||
will cause all programs to run as
|
||
strace -c program arguments
|
||
instead of just
|
||
program arguments */
|
||
static const char *wrapper_string;
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||
|
||
/* Forward declaration for prototypes. */
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||
struct path_prefix;
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||
struct prefix_list;
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||
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||
static void init_spec (void);
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||
static void store_arg (const char *, int, int);
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||
static void insert_wrapper (const char *);
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||
static char *load_specs (const char *);
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||
static void read_specs (const char *, int);
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||
static void set_spec (const char *, const char *);
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||
static struct compiler *lookup_compiler (const char *, size_t, const char *);
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||
static char *build_search_list (const struct path_prefix *, const char *,
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||
bool, bool);
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||
static void xputenv (const char *);
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||
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);
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||
static void add_prefix (struct path_prefix *, const char *, const char *,
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||
int, int, int);
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||
static void add_sysrooted_prefix (struct path_prefix *, const char *,
|
||
const char *, int, int, int);
|
||
static void translate_options (int *, const char *const **);
|
||
static char *skip_whitespace (char *);
|
||
static void delete_if_ordinary (const char *);
|
||
static void delete_temp_files (void);
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||
static void delete_failure_queue (void);
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||
static void clear_failure_queue (void);
|
||
static int check_live_switch (int, int);
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||
static const char *handle_braces (const char *);
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||
static inline bool input_suffix_matches (const char *, const char *);
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||
static inline bool switch_matches (const char *, const char *, int);
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||
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 *);
|
||
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 *);
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||
static void do_self_spec (const char *);
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||
static const char *find_file (const char *);
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||
static int is_directory (const char *, bool);
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||
static const char *validate_switches (const char *);
|
||
static void validate_all_switches (void);
|
||
static inline void validate_switches_from_spec (const char *);
|
||
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 fatal_ice (const char *, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
|
||
static void notice (const char *, ...) ATTRIBUTE_PRINTF_1;
|
||
static void display_help (void);
|
||
static void add_preprocessor_option (const char *, int);
|
||
static void add_assembler_option (const char *, int);
|
||
static void add_linker_option (const char *, int);
|
||
static void process_command (int, const char **);
|
||
static int execute (void);
|
||
static void alloc_args (void);
|
||
static void clear_args (void);
|
||
static void fatal_error (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 *replace_outfile_spec_function (int, const char **);
|
||
static const char *version_compare_spec_function (int, const char **);
|
||
static const char *include_spec_function (int, const char **);
|
||
static const char *print_asm_header_spec_function (int, const char **);
|
||
|
||
/* The Specs Language
|
||
|
||
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.
|
||
%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 CC exits
|
||
successfully. Unlike %g, this contributes no text to the argument.
|
||
%w marks the argument containing or following the %w as the
|
||
"output file" of this compilation. This puts the argument
|
||
into the sequence of arguments that %o will substitute later.
|
||
%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.
|
||
%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.
|
||
%<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* 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 CC.
|
||
If that switch was not specified, this substitutes nothing.
|
||
Here S is a metasyntactic variable.
|
||
%{S*} substitutes all the switches specified to CC whose names start
|
||
with -S. This is used for -o, -I, etc; switches that take
|
||
arguments. CC considers `-o foo' as being one switch whose
|
||
name starts with `o'. %{o*} would substitute this text,
|
||
including the space; thus, two arguments would be generated.
|
||
%{S*&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 CC.
|
||
%{!S:X} substitutes X, if the -S switch was NOT given to CC.
|
||
%{S*:X} substitutes X if one or more switches whose names start
|
||
with -S was given to CC. 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 '*'.
|
||
%{.S:X} substitutes X, if processing a file with suffix S.
|
||
%{!.S:X} substitutes X, if NOT processing a file with suffix S.
|
||
%{,S:X} substitutes X, if processing a file which will use spec S.
|
||
%{!,S:X} substitutes X, if NOT processing a file which will use spec S.
|
||
|
||
%{S|T:X} substitutes X if either -S or -T was given to CC. This may be
|
||
combined with '!', '.', ',', and '*' as above binding stronger
|
||
than the OR.
|
||
If %* appears in X, all of the alternatives must be starred, and
|
||
only the first matching alternative is substituted.
|
||
%{S:X; if S was given to CC, substitutes X;
|
||
T:Y; else if T was given to CC, substitutes Y;
|
||
:D} else substitutes D. There can be as many clauses as you need.
|
||
This may be combined with '.', '!', ',', '|', and '*' as above.
|
||
|
||
%(Spec) processes a specification defined in a specs file as *Spec:
|
||
%[Spec] as above, but put __ around -D arguments
|
||
|
||
The conditional text X in a %{S:X} or 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, -m, and -W switches are handled specifically in these
|
||
constructs. If another value of -O or the negated form of a -f, -m, or
|
||
-W switch is found later in the command line, the earlier switch
|
||
value is ignored, except with {S*} where S is just one letter; this
|
||
passes all matching options.
|
||
|
||
The character | at the beginning of the predicate text is used to indicate
|
||
that a command should be piped to the following command, but only if -pipe
|
||
is specified.
|
||
|
||
Note that it is built into CC which switches take arguments and which
|
||
do not. You might think it would be useful to generalize this to
|
||
allow each compiler's spec to say which switches take arguments. But
|
||
this cannot be done in a consistent fashion. CC cannot even decide
|
||
which input files have been specified without knowing which switches
|
||
take arguments, and it must know which input files to compile in order
|
||
to tell which compilers to run.
|
||
|
||
CC also knows implicitly that arguments starting in `-l' are to be
|
||
treated as compiler output files, and passed to the linker in their
|
||
proper position among the other output files. */
|
||
|
||
/* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
|
||
|
||
/* config.h can define ASM_SPEC to provide extra args to the assembler
|
||
or extra switch-translations. */
|
||
#ifndef ASM_SPEC
|
||
#define ASM_SPEC ""
|
||
#endif
|
||
|
||
/* config.h can define ASM_FINAL_SPEC to run a post processor after
|
||
the assembler has run. */
|
||
#ifndef ASM_FINAL_SPEC
|
||
#define ASM_FINAL_SPEC ""
|
||
#endif
|
||
|
||
/* config.h can define CPP_SPEC to provide extra args to the C preprocessor
|
||
or extra switch-translations. */
|
||
#ifndef CPP_SPEC
|
||
#define CPP_SPEC ""
|
||
#endif
|
||
|
||
/* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
|
||
or extra switch-translations. */
|
||
#ifndef CC1_SPEC
|
||
#define CC1_SPEC ""
|
||
#endif
|
||
|
||
/* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
|
||
or extra switch-translations. */
|
||
#ifndef CC1PLUS_SPEC
|
||
#define CC1PLUS_SPEC ""
|
||
#endif
|
||
|
||
/* config.h can define LINK_SPEC to provide extra args to the linker
|
||
or extra switch-translations. */
|
||
#ifndef LINK_SPEC
|
||
#define LINK_SPEC ""
|
||
#endif
|
||
|
||
/* config.h can define LIB_SPEC to override the default libraries. */
|
||
#ifndef LIB_SPEC
|
||
#define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
|
||
#endif
|
||
|
||
/* mudflap specs */
|
||
#ifndef MFWRAP_SPEC
|
||
/* XXX: valid only for GNU ld */
|
||
/* XXX: should exactly match hooks provided by libmudflap.a */
|
||
#define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
|
||
--wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
|
||
--wrap=mmap --wrap=munmap --wrap=alloca\
|
||
} %{fmudflapth: --wrap=pthread_create\
|
||
}} %{fmudflap|fmudflapth: --wrap=main}"
|
||
#endif
|
||
#ifndef MFLIB_SPEC
|
||
#define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
|
||
#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 SWITCHES_NEED_SPACES to control which options
|
||
require spaces between the option and the argument. */
|
||
#ifndef SWITCHES_NEED_SPACES
|
||
#define SWITCHES_NEED_SPACES ""
|
||
#endif
|
||
|
||
/* config.h can define ENDFILE_SPEC to override the default crtn files. */
|
||
#ifndef ENDFILE_SPEC
|
||
#define ENDFILE_SPEC ""
|
||
#endif
|
||
|
||
#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-2*:--gdwarf2}%{!gdwarf-2*:%{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-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
|
||
|
||
/* -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. */
|
||
#ifndef LINK_COMMAND_SPEC
|
||
#define LINK_COMMAND_SPEC "\
|
||
%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
|
||
%(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
|
||
%{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
|
||
%{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
|
||
%{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
|
||
%{fprofile-arcs|fprofile-generate|coverage:-lgcov}\
|
||
%{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
|
||
%{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
|
||
#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;
|
||
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 *mfwrap_spec = MFWRAP_SPEC;
|
||
static const char *mflib_spec = MFLIB_SPEC;
|
||
static const char *link_gomp_spec = "";
|
||
static const char *libgcc_spec = LIBGCC_SPEC;
|
||
static const char *endfile_spec = ENDFILE_SPEC;
|
||
static const char *startfile_spec = STARTFILE_SPEC;
|
||
static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
|
||
static const char *linker_name_spec = LINKER_NAME;
|
||
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;
|
||
|
||
/* 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|ftraditional|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 =
|
||
"%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
|
||
%{!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}\
|
||
%{H} %C %{D*&U*&A*} %{i*} %Z %i\
|
||
%{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
|
||
%{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
|
||
%{E|M|MM:%W{o*}}";
|
||
|
||
/* 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}}\
|
||
%1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
|
||
%{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} %{--help:--help}\
|
||
%{--target-help:--target-help}\
|
||
%{--help=*:--help=%(VALUE)}\
|
||
%{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
|
||
%{fsyntax-only:-o %j} %{-param*}\
|
||
%{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
|
||
%{coverage:-fprofile-arcs -ftest-coverage}";
|
||
|
||
static const char *asm_options =
|
||
"%{--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
|
||
"%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
|
||
#else
|
||
"%{!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;
|
||
|
||
/* 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
|
||
|
||
/* Adding -fopenmp should imply pthreads. This is particularly important
|
||
for targets that use different start files and suchlike. */
|
||
#ifndef GOMP_SELF_SPECS
|
||
#define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
|
||
#endif
|
||
|
||
static const char *const driver_self_specs[] = {
|
||
DRIVER_SELF_SPECS, GOMP_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;
|
||
|
||
#ifndef SWITCH_TAKES_ARG
|
||
#define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
|
||
#endif
|
||
|
||
#ifndef WORD_SWITCH_TAKES_ARG
|
||
#define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
|
||
#endif
|
||
|
||
#ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
|
||
/* This defines which switches stop a full compilation. */
|
||
#define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
|
||
((CHAR) == 'c' || (CHAR) == 'S')
|
||
|
||
#ifndef SWITCH_CURTAILS_COMPILATION
|
||
#define SWITCH_CURTAILS_COMPILATION(CHAR) \
|
||
DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
|
||
#endif
|
||
#endif
|
||
|
||
/* Record the mapping from file suffixes for compilation specs. */
|
||
|
||
struct compiler
|
||
{
|
||
const char *suffix; /* Use this compiler for input files
|
||
whose names end in this suffix. */
|
||
|
||
const char *spec; /* 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},
|
||
/* Next come the entries for C. */
|
||
{".c", "@c", 0, 1, 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|ftraditional:\
|
||
%eGNU C no longer supports -traditional without -E}\
|
||
%{!combine:\
|
||
%{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)}} \
|
||
%{combine:\
|
||
%{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
|
||
%(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
|
||
%{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
|
||
cc1 %(cpp_unique_options) %(cc1_options)}}\
|
||
%{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 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)\
|
||
-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)\
|
||
-o %g.s %{!o*:--output-pch=%i.gch}\
|
||
%W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
|
||
{".i", "@cpp-output", 0, 1, 0},
|
||
{"@cpp-output",
|
||
"%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
|
||
{".s", "@assembler", 0, 1, 0},
|
||
{"@assembler",
|
||
"%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
|
||
{".sx", "@assembler-with-cpp", 0, 1, 0},
|
||
{".S", "@assembler-with-cpp", 0, 1, 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, 1, 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;
|
||
|
||
/* A vector of options to give to the linker.
|
||
These options are accumulated by %x,
|
||
and substituted into the linker command with %X. */
|
||
static int n_linker_options;
|
||
static char **linker_options;
|
||
|
||
/* A vector of options to give to the assembler.
|
||
These options are accumulated by -Wa,
|
||
and substituted into the assembler command with %Y. */
|
||
static int n_assembler_options;
|
||
static char **assembler_options;
|
||
|
||
/* A vector of options to give to the preprocessor.
|
||
These options are accumulated by -Wp,
|
||
and substituted into the preprocessor command with %Z. */
|
||
static int n_preprocessor_options;
|
||
static char **preprocessor_options;
|
||
|
||
/* Define how to map long options into short ones. */
|
||
|
||
/* This structure describes one mapping. */
|
||
struct option_map
|
||
{
|
||
/* The long option's name. */
|
||
const char *const name;
|
||
/* The equivalent short option. */
|
||
const char *const equivalent;
|
||
/* Argument info. A string of flag chars; NULL equals no options.
|
||
a => argument required.
|
||
o => argument optional.
|
||
j => join argument to equivalent, making one word.
|
||
* => require other text after NAME as an argument. */
|
||
const char *const arg_info;
|
||
};
|
||
|
||
/* This is the table of mappings. Mappings are tried sequentially
|
||
for each option encountered; the first one that matches, wins. */
|
||
|
||
static const struct option_map option_map[] =
|
||
{
|
||
{"--all-warnings", "-Wall", 0},
|
||
{"--ansi", "-ansi", 0},
|
||
{"--assemble", "-S", 0},
|
||
{"--assert", "-A", "a"},
|
||
{"--classpath", "-fclasspath=", "aj"},
|
||
{"--bootclasspath", "-fbootclasspath=", "aj"},
|
||
{"--CLASSPATH", "-fclasspath=", "aj"},
|
||
{"--combine", "-combine", 0},
|
||
{"--comments", "-C", 0},
|
||
{"--comments-in-macros", "-CC", 0},
|
||
{"--compile", "-c", 0},
|
||
{"--debug", "-g", "oj"},
|
||
{"--define-macro", "-D", "aj"},
|
||
{"--dependencies", "-M", 0},
|
||
{"--dump", "-d", "a"},
|
||
{"--dumpbase", "-dumpbase", "a"},
|
||
{"--encoding", "-fencoding=", "aj"},
|
||
{"--entry", "-e", 0},
|
||
{"--extra-warnings", "-W", 0},
|
||
{"--extdirs", "-fextdirs=", "aj"},
|
||
{"--for-assembler", "-Wa", "a"},
|
||
{"--for-linker", "-Xlinker", "a"},
|
||
{"--force-link", "-u", "a"},
|
||
{"--coverage", "-coverage", 0},
|
||
{"--imacros", "-imacros", "a"},
|
||
{"--include", "-include", "a"},
|
||
{"--include-barrier", "-I-", 0},
|
||
{"--include-directory", "-I", "aj"},
|
||
{"--include-directory-after", "-idirafter", "a"},
|
||
{"--include-prefix", "-iprefix", "a"},
|
||
{"--include-with-prefix", "-iwithprefix", "a"},
|
||
{"--include-with-prefix-before", "-iwithprefixbefore", "a"},
|
||
{"--include-with-prefix-after", "-iwithprefix", "a"},
|
||
{"--language", "-x", "a"},
|
||
{"--library-directory", "-L", "a"},
|
||
{"--machine", "-m", "aj"},
|
||
{"--machine-", "-m", "*j"},
|
||
{"--no-integrated-cpp", "-no-integrated-cpp", 0},
|
||
{"--no-line-commands", "-P", 0},
|
||
{"--no-precompiled-includes", "-noprecomp", 0},
|
||
{"--no-standard-includes", "-nostdinc", 0},
|
||
{"--no-standard-libraries", "-nostdlib", 0},
|
||
{"--no-warnings", "-w", 0},
|
||
{"--optimize", "-O", "oj"},
|
||
{"--output", "-o", "a"},
|
||
{"--output-class-directory", "-foutput-class-dir=", "ja"},
|
||
{"--param", "--param", "a"},
|
||
{"--pass-exit-codes", "-pass-exit-codes", 0},
|
||
{"--pedantic", "-pedantic", 0},
|
||
{"--pedantic-errors", "-pedantic-errors", 0},
|
||
{"--pie", "-pie", 0},
|
||
{"--pipe", "-pipe", 0},
|
||
{"--prefix", "-B", "a"},
|
||
{"--preprocess", "-E", 0},
|
||
{"--print-search-dirs", "-print-search-dirs", 0},
|
||
{"--print-file-name", "-print-file-name=", "aj"},
|
||
{"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
|
||
{"--print-missing-file-dependencies", "-MG", 0},
|
||
{"--print-multi-lib", "-print-multi-lib", 0},
|
||
{"--print-multi-directory", "-print-multi-directory", 0},
|
||
{"--print-multi-os-directory", "-print-multi-os-directory", 0},
|
||
{"--print-prog-name", "-print-prog-name=", "aj"},
|
||
{"--print-sysroot", "-print-sysroot", 0},
|
||
{"--print-sysroot-headers-suffix", "-print-sysroot-headers-suffix", 0},
|
||
{"--profile", "-p", 0},
|
||
{"--profile-blocks", "-a", 0},
|
||
{"--quiet", "-q", 0},
|
||
{"--resource", "-fcompile-resource=", "aj"},
|
||
{"--save-temps", "-save-temps", 0},
|
||
{"--shared", "-shared", 0},
|
||
{"--silent", "-q", 0},
|
||
{"--specs", "-specs=", "aj"},
|
||
{"--static", "-static", 0},
|
||
{"--std", "-std=", "aj"},
|
||
{"--symbolic", "-symbolic", 0},
|
||
{"--sysroot", "--sysroot=", "aj"},
|
||
{"--time", "-time", 0},
|
||
{"--trace-includes", "-H", 0},
|
||
{"--traditional", "-traditional", 0},
|
||
{"--traditional-cpp", "-traditional-cpp", 0},
|
||
{"--trigraphs", "-trigraphs", 0},
|
||
{"--undefine-macro", "-U", "aj"},
|
||
{"--user-dependencies", "-MM", 0},
|
||
{"--verbose", "-v", 0},
|
||
{"--warn-", "-W", "*j"},
|
||
{"--write-dependencies", "-MD", 0},
|
||
{"--write-user-dependencies", "-MMD", 0},
|
||
{"--", "-f", "*j"}
|
||
};
|
||
|
||
|
||
#ifdef TARGET_OPTION_TRANSLATE_TABLE
|
||
static const struct {
|
||
const char *const option_found;
|
||
const char *const replacements;
|
||
} target_option_translations[] =
|
||
{
|
||
TARGET_OPTION_TRANSLATE_TABLE,
|
||
{ 0, 0 }
|
||
};
|
||
#endif
|
||
|
||
/* Translate the options described by *ARGCP and *ARGVP.
|
||
Make a new vector and store it back in *ARGVP,
|
||
and store its length in *ARGCP. */
|
||
|
||
static void
|
||
translate_options (int *argcp, const char *const **argvp)
|
||
{
|
||
int i;
|
||
int argc = *argcp;
|
||
const char *const *argv = *argvp;
|
||
int newvsize = (argc + 2) * 2 * sizeof (const char *);
|
||
const char **newv = XNEWVAR (const char *, newvsize);
|
||
int newindex = 0;
|
||
|
||
i = 0;
|
||
newv[newindex++] = argv[i++];
|
||
|
||
while (i < argc)
|
||
{
|
||
#ifdef TARGET_OPTION_TRANSLATE_TABLE
|
||
int tott_idx;
|
||
|
||
for (tott_idx = 0;
|
||
target_option_translations[tott_idx].option_found;
|
||
tott_idx++)
|
||
{
|
||
if (strcmp (target_option_translations[tott_idx].option_found,
|
||
argv[i]) == 0)
|
||
{
|
||
int spaces = 1;
|
||
const char *sp;
|
||
char *np;
|
||
|
||
for (sp = target_option_translations[tott_idx].replacements;
|
||
*sp; sp++)
|
||
{
|
||
if (*sp == ' ')
|
||
spaces ++;
|
||
}
|
||
|
||
newvsize += spaces * sizeof (const char *);
|
||
newv = XRESIZEVAR (const char *, newv, newvsize);
|
||
|
||
sp = target_option_translations[tott_idx].replacements;
|
||
np = xstrdup (sp);
|
||
|
||
while (1)
|
||
{
|
||
while (*np == ' ')
|
||
np++;
|
||
if (*np == 0)
|
||
break;
|
||
newv[newindex++] = np;
|
||
while (*np != ' ' && *np)
|
||
np++;
|
||
if (*np == 0)
|
||
break;
|
||
*np++ = 0;
|
||
}
|
||
|
||
i ++;
|
||
break;
|
||
}
|
||
}
|
||
if (target_option_translations[tott_idx].option_found)
|
||
continue;
|
||
#endif
|
||
|
||
/* Translate -- options. */
|
||
if (argv[i][0] == '-' && argv[i][1] == '-')
|
||
{
|
||
size_t j;
|
||
/* Find a mapping that applies to this option. */
|
||
for (j = 0; j < ARRAY_SIZE (option_map); j++)
|
||
{
|
||
size_t optlen = strlen (option_map[j].name);
|
||
size_t arglen = strlen (argv[i]);
|
||
size_t complen = arglen > optlen ? optlen : arglen;
|
||
const char *arginfo = option_map[j].arg_info;
|
||
|
||
if (arginfo == 0)
|
||
arginfo = "";
|
||
|
||
if (!strncmp (argv[i], option_map[j].name, complen))
|
||
{
|
||
const char *arg = 0;
|
||
|
||
if (arglen < optlen)
|
||
{
|
||
size_t k;
|
||
for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
|
||
if (strlen (option_map[k].name) >= arglen
|
||
&& !strncmp (argv[i], option_map[k].name, arglen))
|
||
{
|
||
error ("ambiguous abbreviation %s", argv[i]);
|
||
break;
|
||
}
|
||
|
||
if (k != ARRAY_SIZE (option_map))
|
||
break;
|
||
}
|
||
|
||
if (arglen > optlen)
|
||
{
|
||
/* If the option has an argument, accept that. */
|
||
if (argv[i][optlen] == '=')
|
||
arg = argv[i] + optlen + 1;
|
||
|
||
/* If this mapping requires extra text at end of name,
|
||
accept that as "argument". */
|
||
else if (strchr (arginfo, '*') != 0)
|
||
arg = argv[i] + optlen;
|
||
|
||
/* Otherwise, extra text at end means mismatch.
|
||
Try other mappings. */
|
||
else
|
||
continue;
|
||
}
|
||
|
||
else if (strchr (arginfo, '*') != 0)
|
||
{
|
||
error ("incomplete '%s' option", option_map[j].name);
|
||
break;
|
||
}
|
||
|
||
/* Handle arguments. */
|
||
if (strchr (arginfo, 'a') != 0)
|
||
{
|
||
if (arg == 0)
|
||
{
|
||
if (i + 1 == argc)
|
||
{
|
||
error ("missing argument to '%s' option",
|
||
option_map[j].name);
|
||
break;
|
||
}
|
||
|
||
arg = argv[++i];
|
||
}
|
||
}
|
||
else if (strchr (arginfo, '*') != 0)
|
||
;
|
||
else if (strchr (arginfo, 'o') == 0)
|
||
{
|
||
if (arg != 0)
|
||
error ("extraneous argument to '%s' option",
|
||
option_map[j].name);
|
||
arg = 0;
|
||
}
|
||
|
||
/* Store the translation as one argv elt or as two. */
|
||
if (arg != 0 && strchr (arginfo, 'j') != 0)
|
||
newv[newindex++] = concat (option_map[j].equivalent, arg,
|
||
NULL);
|
||
else if (arg != 0)
|
||
{
|
||
newv[newindex++] = option_map[j].equivalent;
|
||
newv[newindex++] = arg;
|
||
}
|
||
else
|
||
newv[newindex++] = option_map[j].equivalent;
|
||
|
||
break;
|
||
}
|
||
}
|
||
i++;
|
||
}
|
||
|
||
/* Handle old-fashioned options--just copy them through,
|
||
with their arguments. */
|
||
else if (argv[i][0] == '-')
|
||
{
|
||
const char *p = argv[i] + 1;
|
||
int c = *p;
|
||
int nskip = 1;
|
||
|
||
if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
|
||
nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
|
||
else if (WORD_SWITCH_TAKES_ARG (p))
|
||
nskip += WORD_SWITCH_TAKES_ARG (p);
|
||
else if ((c == 'B' || c == 'b' || c == 'x')
|
||
&& p[1] == 0)
|
||
nskip += 1;
|
||
else if (! strcmp (p, "Xlinker"))
|
||
nskip += 1;
|
||
else if (! strcmp (p, "Xpreprocessor"))
|
||
nskip += 1;
|
||
else if (! strcmp (p, "Xassembler"))
|
||
nskip += 1;
|
||
|
||
/* Watch out for an option at the end of the command line that
|
||
is missing arguments, and avoid skipping past the end of the
|
||
command line. */
|
||
if (nskip + i > argc)
|
||
nskip = argc - i;
|
||
|
||
while (nskip > 0)
|
||
{
|
||
newv[newindex++] = argv[i++];
|
||
nskip--;
|
||
}
|
||
}
|
||
else
|
||
/* Ordinary operands, or +e options. */
|
||
newv[newindex++] = argv[i++];
|
||
}
|
||
|
||
newv[newindex] = 0;
|
||
|
||
*argvp = newv;
|
||
*argcp = newindex;
|
||
}
|
||
|
||
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 *const standard_exec_prefix_1 = "/usr/libexec/gcc/";
|
||
static const char *const standard_exec_prefix_2 = "/usr/lib/gcc/";
|
||
static const char *md_exec_prefix = MD_EXEC_PREFIX;
|
||
static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
|
||
static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
|
||
static const char *const standard_startfile_prefix_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;
|
||
|
||
/* Structure to keep track of the specs that have been defined so far.
|
||
These are accessed using %(specname) or %[specname] in a compiler
|
||
or link spec. */
|
||
|
||
struct spec_list
|
||
{
|
||
/* The following 2 fields must be first */
|
||
/* to allow EXTRA_SPECS to be initialized */
|
||
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 */
|
||
int alloc_p; /* whether string was allocated */
|
||
};
|
||
|
||
#define INIT_STATIC_SPEC(NAME,PTR) \
|
||
{ NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
|
||
|
||
/* List of statically defined specs. */
|
||
static struct spec_list static_specs[] =
|
||
{
|
||
INIT_STATIC_SPEC ("asm", &asm_spec),
|
||
INIT_STATIC_SPEC ("asm_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 ("mfwrap", &mfwrap_spec),
|
||
INIT_STATIC_SPEC ("mflib", &mflib_spec),
|
||
INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec),
|
||
INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
|
||
INIT_STATIC_SPEC ("startfile", &startfile_spec),
|
||
INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
|
||
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 ("linker", &linker_name_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),
|
||
};
|
||
|
||
#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 },
|
||
{ "replace-outfile", replace_outfile_spec_function },
|
||
{ "version-compare", version_compare_spec_function },
|
||
{ "include", include_spec_function },
|
||
{ "print-asm-header", print_asm_header_spec_function },
|
||
#ifdef EXTRA_SPEC_FUNCTIONS
|
||
EXTRA_SPEC_FUNCTIONS
|
||
#endif
|
||
{ 0, 0 }
|
||
};
|
||
|
||
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, " --as-needed ", shared_name, " --no-as-needed"
|
||
"}"
|
||
"%{shared-libgcc:",
|
||
shared_name, "%{!shared: ", static_name, "}"
|
||
"}"
|
||
#else
|
||
"%{!shared:"
|
||
"%{!shared-libgcc:", static_name, " ", eh_name, "}"
|
||
"%{shared-libgcc:", shared_name, " ", static_name, "}"
|
||
"}"
|
||
#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)
|
||
notice ("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:-Bstatic} -lunwind %{!static:-Bdynamic}"
|
||
# 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
|
||
#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);
|
||
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)
|
||
{
|
||
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)
|
||
notice ("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->alloc_p = 1;
|
||
}
|
||
|
||
/* Accumulate a command (program name and args), and run it. */
|
||
|
||
/* Vector of pointers to arguments in the current line of specifications. */
|
||
|
||
static const char **argbuf;
|
||
|
||
/* Number of elements allocated in argbuf. */
|
||
|
||
static int argbuf_length;
|
||
|
||
/* Number of elements in argbuf currently in use (containing args). */
|
||
|
||
static int argbuf_index;
|
||
|
||
/* Position in the argbuf array 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 or -S 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;
|
||
|
||
/* Name with which this program was invoked. */
|
||
|
||
static const char *programname;
|
||
|
||
/* Allocate the argument vector. */
|
||
|
||
static void
|
||
alloc_args (void)
|
||
{
|
||
argbuf_length = 10;
|
||
argbuf = XNEWVEC (const char *, argbuf_length);
|
||
}
|
||
|
||
/* Clear out the vector of arguments (after a command is executed). */
|
||
|
||
static void
|
||
clear_args (void)
|
||
{
|
||
argbuf_index = 0;
|
||
}
|
||
|
||
/* Add one argument to the vector at the end.
|
||
This is done when a space is seen or at the end of the line.
|
||
If DELETE_ALWAYS is nonzero, the arg is a filename
|
||
and the file should be deleted eventually.
|
||
If DELETE_FAILURE is nonzero, the arg is a filename
|
||
and the file should be deleted if this compilation fails. */
|
||
|
||
static void
|
||
store_arg (const char *arg, int delete_always, int delete_failure)
|
||
{
|
||
if (argbuf_index + 1 == argbuf_length)
|
||
argbuf = XRESIZEVEC (const char *, argbuf, (argbuf_length *= 2));
|
||
|
||
argbuf[argbuf_index++] = arg;
|
||
argbuf[argbuf_index] = 0;
|
||
|
||
if (strcmp (arg, "-o") == 0)
|
||
have_o_argbuf_index = argbuf_index;
|
||
if (delete_always || delete_failure)
|
||
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)
|
||
notice ("Reading specs from %s\n", filename);
|
||
|
||
/* Open and stat the file. */
|
||
desc = open (filename, O_RDONLY, 0);
|
||
if (desc < 0)
|
||
pfatal_with_name (filename);
|
||
if (stat (filename, &statbuf) < 0)
|
||
pfatal_with_name (filename);
|
||
|
||
/* Read contents of file into BUFFER. */
|
||
buffer = 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, int main_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 ("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);
|
||
continue;
|
||
}
|
||
else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
|
||
&& (p1[sizeof "%include_noerr" - 1] == ' '
|
||
|| p1[sizeof "%include_noerr" - 1] == '\t'))
|
||
{
|
||
char *new_filename;
|
||
|
||
p1 += sizeof "%include_noerr";
|
||
while (*p1 == ' ' || *p1 == '\t')
|
||
p1++;
|
||
|
||
if (*p1++ != '<' || p[-2] != '>')
|
||
fatal ("specs %%include syntax malformed after %ld characters",
|
||
(long) (p1 - buffer + 1));
|
||
|
||
p[-2] = '\0';
|
||
new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
|
||
if (new_filename)
|
||
read_specs (new_filename, FALSE);
|
||
else if (verbose_flag)
|
||
notice ("could not find specs file %s\n", p1);
|
||
continue;
|
||
}
|
||
else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
|
||
&& (p1[sizeof "%rename" - 1] == ' '
|
||
|| p1[sizeof "%rename" - 1] == '\t'))
|
||
{
|
||
int name_len;
|
||
struct spec_list *sl;
|
||
struct spec_list *newsl;
|
||
|
||
/* Get original name. */
|
||
p1 += sizeof "%rename";
|
||
while (*p1 == ' ' || *p1 == '\t')
|
||
p1++;
|
||
|
||
if (! ISALPHA ((unsigned char) *p1))
|
||
fatal ("specs %%rename syntax malformed after %ld characters",
|
||
(long) (p1 - buffer));
|
||
|
||
p2 = p1;
|
||
while (*p2 && !ISSPACE ((unsigned char) *p2))
|
||
p2++;
|
||
|
||
if (*p2 != ' ' && *p2 != '\t')
|
||
fatal ("specs %%rename syntax malformed after %ld characters",
|
||
(long) (p2 - buffer));
|
||
|
||
name_len = p2 - p1;
|
||
*p2++ = '\0';
|
||
while (*p2 == ' ' || *p2 == '\t')
|
||
p2++;
|
||
|
||
if (! ISALPHA ((unsigned char) *p2))
|
||
fatal ("specs %%rename syntax malformed after %ld characters",
|
||
(long) (p2 - buffer));
|
||
|
||
/* Get new spec name. */
|
||
p3 = p2;
|
||
while (*p3 && !ISSPACE ((unsigned char) *p3))
|
||
p3++;
|
||
|
||
if (p3 != p - 1)
|
||
fatal ("specs %%rename syntax malformed after %ld characters",
|
||
(long) (p3 - buffer));
|
||
*p3 = '\0';
|
||
|
||
for (sl = specs; sl; sl = sl->next)
|
||
if (name_len == sl->name_len && !strcmp (sl->name, p1))
|
||
break;
|
||
|
||
if (!sl)
|
||
fatal ("specs %s spec was not found to be renamed", p1);
|
||
|
||
if (strcmp (p1, p2) == 0)
|
||
continue;
|
||
|
||
for (newsl = specs; newsl; newsl = newsl->next)
|
||
if (strcmp (newsl->name, p2) == 0)
|
||
fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
|
||
filename, p1, p2);
|
||
|
||
if (verbose_flag)
|
||
{
|
||
notice ("rename spec %s to %s\n", p1, p2);
|
||
#ifdef DEBUG_SPECS
|
||
notice ("spec is '%s'\n\n", *(sl->ptr_spec));
|
||
#endif
|
||
}
|
||
|
||
set_spec (p2, *(sl->ptr_spec));
|
||
if (sl->alloc_p)
|
||
free (CONST_CAST (char *, *(sl->ptr_spec)));
|
||
|
||
*(sl->ptr_spec) = "";
|
||
sl->alloc_p = 0;
|
||
continue;
|
||
}
|
||
else
|
||
fatal ("specs unknown %% command after %ld characters",
|
||
(long) (p1 - buffer));
|
||
}
|
||
|
||
/* Find the colon that should end the suffix. */
|
||
p1 = p;
|
||
while (*p1 && *p1 != ':' && *p1 != '\n')
|
||
p1++;
|
||
|
||
/* The colon shouldn't be missing. */
|
||
if (*p1 != ':')
|
||
fatal ("specs file malformed after %ld characters",
|
||
(long) (p1 - buffer));
|
||
|
||
/* Skip back over trailing whitespace. */
|
||
p2 = p1;
|
||
while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
|
||
p2--;
|
||
|
||
/* Copy the suffix to a string. */
|
||
suffix = save_string (p, p2 - p);
|
||
/* Find the next line. */
|
||
p = skip_whitespace (p1 + 1);
|
||
if (p[1] == 0)
|
||
fatal ("specs file malformed after %ld characters",
|
||
(long) (p - buffer));
|
||
|
||
p1 = p;
|
||
/* Find next blank line or end of string. */
|
||
while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
|
||
p1++;
|
||
|
||
/* Specs end at the blank line and do not include the newline. */
|
||
spec = save_string (p, p1 - p);
|
||
p = p1;
|
||
|
||
/* Delete backslash-newline sequences from the spec. */
|
||
in = spec;
|
||
out = spec;
|
||
while (*in != 0)
|
||
{
|
||
if (in[0] == '\\' && in[1] == '\n')
|
||
in += 2;
|
||
else if (in[0] == '#')
|
||
while (*in && *in != '\n')
|
||
in++;
|
||
|
||
else
|
||
*out++ = *in++;
|
||
}
|
||
*out = 0;
|
||
|
||
if (suffix[0] == '*')
|
||
{
|
||
if (! strcmp (suffix, "*link_command"))
|
||
link_command_spec = spec;
|
||
else
|
||
set_spec (suffix + 1, spec);
|
||
}
|
||
else
|
||
{
|
||
/* Add this pair to the vector. */
|
||
compilers
|
||
= 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 ("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 (! strcmp (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 (! strcmp (name, temp->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 *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);
|
||
|
||
while (1)
|
||
{
|
||
size_t multi_dir_len = 0;
|
||
size_t multi_os_dir_len = 0;
|
||
size_t suffix_len;
|
||
size_t just_suffix_len;
|
||
size_t len;
|
||
|
||
if (multi_dir)
|
||
multi_dir_len = strlen (multi_dir);
|
||
if (multi_os_dir)
|
||
multi_os_dir_len = strlen (multi_os_dir);
|
||
suffix_len = strlen (multi_suffix);
|
||
just_suffix_len = strlen (just_multi_suffix);
|
||
|
||
if (path == NULL)
|
||
{
|
||
len = paths->max_len + extra_space + 1;
|
||
if (suffix_len > multi_os_dir_len)
|
||
len += suffix_len;
|
||
else
|
||
len += multi_os_dir_len;
|
||
path = XNEWVEC (char, len);
|
||
}
|
||
|
||
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 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)
|
||
notice ("%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 ("system path '%s' is not absolute", prefix);
|
||
|
||
if (target_system_root)
|
||
{
|
||
if (target_sysroot_suffix)
|
||
prefix = concat (target_sysroot_suffix, prefix, NULL);
|
||
prefix = concat (target_system_root, prefix, NULL);
|
||
|
||
/* 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. */
|
||
};
|
||
|
||
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);
|
||
argbuf[0] = (string) ? string : argbuf[0];
|
||
insert_wrapper (wrapper_string);
|
||
}
|
||
|
||
/* Count # of piped commands. */
|
||
for (n_commands = 1, i = 0; i < argbuf_index; i++)
|
||
if (strcmp (argbuf[i], "|") == 0)
|
||
n_commands++;
|
||
|
||
/* Get storage for each command. */
|
||
commands = (struct command *) alloca (n_commands * sizeof (struct command));
|
||
|
||
/* Split argbuf into its separate piped processes,
|
||
and record info about each one.
|
||
Also search for the programs that are to be run. */
|
||
|
||
commands[0].prog = argbuf[0]; /* first command. */
|
||
commands[0].argv = &argbuf[0];
|
||
|
||
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; i < argbuf_index; i++)
|
||
if (strcmp (argbuf[i], "|") == 0)
|
||
{ /* each command. */
|
||
#if defined (__MSDOS__) || defined (OS2) || defined (VMS)
|
||
fatal ("-pipe not supported");
|
||
#endif
|
||
argbuf[i] = 0; /* termination of command args. */
|
||
commands[n_commands].prog = argbuf[i + 1];
|
||
commands[n_commands].argv = &argbuf[i + 1];
|
||
string = find_a_file (&exec_prefixes, commands[n_commands].prog,
|
||
X_OK, false);
|
||
if (string)
|
||
commands[n_commands].argv[0] = string;
|
||
n_commands++;
|
||
}
|
||
|
||
argbuf[argbuf_index] = 0;
|
||
|
||
/* If -v, print what we are about to do, and maybe query. */
|
||
|
||
if (verbose_flag)
|
||
{
|
||
/* For help listings, put a blank line between sub-processes. */
|
||
if (print_help_list)
|
||
fputc ('\n', stderr);
|
||
|
||
/* Print each piped command as a separate line. */
|
||
for (i = 0; i < n_commands; i++)
|
||
{
|
||
const char *const *j;
|
||
|
||
if (verbose_only_flag)
|
||
{
|
||
for (j = commands[i].argv; *j; j++)
|
||
{
|
||
const char *p;
|
||
fprintf (stderr, " \"");
|
||
for (p = *j; *p; ++p)
|
||
{
|
||
if (*p == '"' || *p == '\\' || *p == '$')
|
||
fputc ('\\', stderr);
|
||
fputc (*p, stderr);
|
||
}
|
||
fputc ('"', stderr);
|
||
}
|
||
}
|
||
else
|
||
for (j = commands[i].argv; *j; j++)
|
||
fprintf (stderr, " %s", *j);
|
||
|
||
/* Print a pipe symbol after all but the last command. */
|
||
if (i + 1 != n_commands)
|
||
fprintf (stderr, " |");
|
||
fprintf (stderr, "\n");
|
||
}
|
||
fflush (stderr);
|
||
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
|
||
notice ("\nGo ahead? (y or n) ");
|
||
fflush (stderr);
|
||
i = getchar ();
|
||
if (i != '\n')
|
||
while (getchar () != '\n')
|
||
;
|
||
|
||
if (i != 'y' && i != 'Y')
|
||
return 0;
|
||
#endif /* DEBUG */
|
||
}
|
||
|
||
#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 ? PEX_RECORD_TIMES : 0),
|
||
programname, temp_filename);
|
||
if (pex == NULL)
|
||
pfatal_with_name (_("pex_init failed"));
|
||
|
||
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 (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))
|
||
pfatal_with_name (_("failed to get exit status"));
|
||
|
||
if (report_times)
|
||
{
|
||
times = (struct pex_time *) alloca (n_commands * sizeof (struct pex_time));
|
||
if (!pex_get_times (pex, n_commands, times))
|
||
pfatal_with_name (_("failed to get process times"));
|
||
}
|
||
|
||
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
|
||
fatal_ice ("\
|
||
Internal error: %s (program %s)\n\
|
||
Please submit a full bug report.\n\
|
||
See %s for instructions.",
|
||
strsignal (WTERMSIG (status)), commands[i].prog,
|
||
bug_report_url);
|
||
}
|
||
else if (WIFEXITED (status)
|
||
&& WEXITSTATUS (status) >= MIN_FATAL_STATUS)
|
||
{
|
||
if (WEXITSTATUS (status) > greatest_status)
|
||
greatest_status = WEXITSTATUS (status);
|
||
ret_code = -1;
|
||
}
|
||
|
||
if (report_times)
|
||
{
|
||
struct pex_time *pt = ×[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)
|
||
notice ("# %s %.2f %.2f\n", commands[i].prog, ut, st);
|
||
}
|
||
}
|
||
|
||
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).
|
||
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 0x1
|
||
#define SWITCH_FALSE 0x2
|
||
#define SWITCH_IGNORE 0x4
|
||
|
||
struct switchstr
|
||
{
|
||
const char *part1;
|
||
const char **args;
|
||
unsigned int live_cond;
|
||
unsigned char validated;
|
||
unsigned char ordering;
|
||
};
|
||
|
||
static struct switchstr *switches;
|
||
|
||
static int n_switches;
|
||
|
||
/* 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;
|
||
|
||
/* 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"), programname);
|
||
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={target|optimizers|warnings|undocumented|params}[,{[^]joined|[^]separate}]\n"), stdout);
|
||
fputs (_(" Display specific types of command line options\n"), stdout);
|
||
if (! verbose_flag)
|
||
fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
|
||
fputs (_(" --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-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 (_(" -combine Pass multiple source files to compiler at once\n"), stdout);
|
||
fputs (_(" -save-temps Do not delete intermediate files\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 (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
|
||
fputs (_(" -V <version> Run gcc version number <version>, if installed\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 (_("\
|
||
-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\
|
||
"), programname);
|
||
|
||
/* The rest of the options are displayed by invocations of the various
|
||
sub-processes. */
|
||
}
|
||
|
||
static void
|
||
add_preprocessor_option (const char *option, int len)
|
||
{
|
||
n_preprocessor_options++;
|
||
|
||
if (! preprocessor_options)
|
||
preprocessor_options = XNEWVEC (char *, n_preprocessor_options);
|
||
else
|
||
preprocessor_options = XRESIZEVEC (char *, preprocessor_options,
|
||
n_preprocessor_options);
|
||
|
||
preprocessor_options [n_preprocessor_options - 1] =
|
||
save_string (option, len);
|
||
}
|
||
|
||
static void
|
||
add_assembler_option (const char *option, int len)
|
||
{
|
||
n_assembler_options++;
|
||
|
||
if (! assembler_options)
|
||
assembler_options = XNEWVEC (char *, n_assembler_options);
|
||
else
|
||
assembler_options = XRESIZEVEC (char *, assembler_options,
|
||
n_assembler_options);
|
||
|
||
assembler_options [n_assembler_options - 1] = save_string (option, len);
|
||
}
|
||
|
||
static void
|
||
add_linker_option (const char *option, int len)
|
||
{
|
||
n_linker_options++;
|
||
|
||
if (! linker_options)
|
||
linker_options = XNEWVEC (char *, n_linker_options);
|
||
else
|
||
linker_options = XRESIZEVEC (char *, linker_options, n_linker_options);
|
||
|
||
linker_options [n_linker_options - 1] = save_string (option, len);
|
||
}
|
||
|
||
/* Create the vector `switches' and its contents.
|
||
Store its length in `n_switches'. */
|
||
|
||
static void
|
||
process_command (int argc, const char **argv)
|
||
{
|
||
int i;
|
||
const char *temp;
|
||
char *temp1;
|
||
const char *spec_lang = 0;
|
||
int last_language_n_infiles;
|
||
int lang_n_infiles = 0;
|
||
#ifdef MODIFY_TARGET_NAME
|
||
int is_modify_target_name;
|
||
unsigned int j;
|
||
#endif
|
||
const char *tooldir_prefix;
|
||
|
||
GET_ENVIRONMENT (gcc_exec_prefix, "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;
|
||
}
|
||
}
|
||
|
||
/* If there is a -V or -b option (or both), process it now, before
|
||
trying to interpret the rest of the command line.
|
||
Use heuristic that all configuration names must have at least
|
||
one dash '-'. This allows us to pass options starting with -b. */
|
||
if (argc > 1 && argv[1][0] == '-'
|
||
&& (argv[1][1] == 'V'
|
||
|| (argv[1][1] == 'b'
|
||
&& (argv[1][2] == '\0'
|
||
|| NULL != strchr (argv[1] + 2, '-')))))
|
||
{
|
||
const char *new_version = DEFAULT_TARGET_VERSION;
|
||
const char *new_machine = DEFAULT_TARGET_MACHINE;
|
||
const char *progname = argv[0];
|
||
char **new_argv;
|
||
char *new_argv0;
|
||
int baselen;
|
||
int status = 0;
|
||
int err = 0;
|
||
const char *errmsg;
|
||
|
||
while (argc > 1 && argv[1][0] == '-'
|
||
&& (argv[1][1] == 'V'
|
||
|| (argv[1][1] == 'b'
|
||
&& (argv[1][2] == '\0'
|
||
|| NULL != strchr (argv[1] + 2, '-')))))
|
||
{
|
||
char opt = argv[1][1];
|
||
const char *arg;
|
||
if (argv[1][2] != '\0')
|
||
{
|
||
arg = argv[1] + 2;
|
||
argc -= 1;
|
||
argv += 1;
|
||
}
|
||
else if (argc > 2)
|
||
{
|
||
arg = argv[2];
|
||
argc -= 2;
|
||
argv += 2;
|
||
}
|
||
else
|
||
fatal ("'-%c' option must have argument", opt);
|
||
if (opt == 'V')
|
||
new_version = arg;
|
||
else
|
||
new_machine = arg;
|
||
}
|
||
|
||
for (baselen = strlen (progname); baselen > 0; baselen--)
|
||
if (IS_DIR_SEPARATOR (progname[baselen-1]))
|
||
break;
|
||
new_argv0 = XDUPVAR (char, progname, baselen,
|
||
baselen + concat_length (new_version, new_machine,
|
||
"-gcc-", NULL) + 1);
|
||
strcpy (new_argv0 + baselen, new_machine);
|
||
strcat (new_argv0, "-gcc-");
|
||
strcat (new_argv0, new_version);
|
||
|
||
new_argv = XDUPVEC (char *, argv, argc + 1);
|
||
new_argv[0] = new_argv0;
|
||
|
||
errmsg = pex_one (PEX_SEARCH, new_argv0, new_argv, progname, NULL,
|
||
NULL, &status, &err);
|
||
|
||
if (errmsg)
|
||
{
|
||
if (err == 0)
|
||
fatal ("couldn't run '%s': %s", new_argv0, errmsg);
|
||
else
|
||
fatal ("couldn't run '%s': %s: %s", new_argv0, errmsg,
|
||
xstrerror (err));
|
||
}
|
||
exit (status);
|
||
}
|
||
|
||
/* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
|
||
see if we can create it from the pathname specified in argv[0]. */
|
||
|
||
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 = make_relative_prefix (argv[0], standard_bindir_prefix,
|
||
standard_exec_prefix);
|
||
gcc_libexec_prefix = make_relative_prefix (argv[0],
|
||
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 = make_relative_prefix (tmp_prefix,
|
||
standard_exec_prefix,
|
||
standard_libexec_prefix);
|
||
|
||
/* The path is unrelocated, so fallback to the original setting. */
|
||
if (!gcc_libexec_prefix)
|
||
gcc_libexec_prefix = standard_libexec_prefix;
|
||
|
||
free (tmp_prefix);
|
||
}
|
||
#else
|
||
#endif
|
||
/* From this point onward, gcc_exec_prefix is non-null if the toolchain
|
||
is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
|
||
or an automatically created GCC_EXEC_PREFIX from argv[0]. */
|
||
|
||
if (gcc_exec_prefix)
|
||
{
|
||
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)
|
||
&& strncmp (temp + 1, "lib", 3) == 0
|
||
&& IS_DIR_SEPARATOR (temp[4])
|
||
&& strncmp (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. */
|
||
|
||
GET_ENVIRONMENT (temp, "COMPILER_PATH");
|
||
if (temp)
|
||
{
|
||
const char *startp, *endp;
|
||
char *nstore = (char *) alloca (strlen (temp) + 3);
|
||
|
||
startp = endp = temp;
|
||
while (1)
|
||
{
|
||
if (*endp == PATH_SEPARATOR || *endp == 0)
|
||
{
|
||
strncpy (nstore, startp, endp - startp);
|
||
if (endp == startp)
|
||
strcpy (nstore, concat (".", dir_separator_str, NULL));
|
||
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++;
|
||
}
|
||
}
|
||
|
||
GET_ENVIRONMENT (temp, 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). */
|
||
GET_ENVIRONMENT (temp, "LPATH");
|
||
if (temp && *cross_compile == '0')
|
||
{
|
||
const char *startp, *endp;
|
||
char *nstore = (char *) alloca (strlen (temp) + 3);
|
||
|
||
startp = endp = temp;
|
||
while (1)
|
||
{
|
||
if (*endp == PATH_SEPARATOR || *endp == 0)
|
||
{
|
||
strncpy (nstore, startp, endp - startp);
|
||
if (endp == startp)
|
||
strcpy (nstore, concat (".", dir_separator_str, NULL));
|
||
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++;
|
||
}
|
||
}
|
||
|
||
/* Convert new-style -- options to old-style. */
|
||
translate_options (&argc, (const char *const **) &argv);
|
||
|
||
/* Do language-specific adjustment/addition of flags. */
|
||
lang_specific_driver (&argc, (const char *const **) &argv, &added_libraries);
|
||
|
||
/* Scan argv twice. Here, the first time, just count how many switches
|
||
there will be in their vector, and how many input files in theirs.
|
||
Here we also parse the switches that cc itself uses (e.g. -v). */
|
||
|
||
for (i = 1; i < argc; i++)
|
||
{
|
||
if (! strcmp (argv[i], "-dumpspecs"))
|
||
{
|
||
struct spec_list *sl;
|
||
init_spec ();
|
||
for (sl = specs; sl; sl = sl->next)
|
||
printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
|
||
if (link_command_spec)
|
||
printf ("*link_command:\n%s\n\n", link_command_spec);
|
||
exit (0);
|
||
}
|
||
else if (! strcmp (argv[i], "-dumpversion"))
|
||
{
|
||
printf ("%s\n", spec_version);
|
||
exit (0);
|
||
}
|
||
else if (! strcmp (argv[i], "-dumpmachine"))
|
||
{
|
||
printf ("%s\n", spec_machine);
|
||
exit (0);
|
||
}
|
||
else if (strcmp (argv[i], "-fversion") == 0)
|
||
{
|
||
/* translate_options () has turned --version into -fversion. */
|
||
printf (_("%s %s%s\n"), programname, pkgversion_string,
|
||
version_string);
|
||
printf ("Copyright %s 2009 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);
|
||
exit (0);
|
||
}
|
||
else if (strcmp (argv[i], "-fhelp") == 0)
|
||
{
|
||
/* translate_options () has turned --help into -fhelp. */
|
||
print_help_list = 1;
|
||
|
||
/* We will be passing a dummy file on to the sub-processes. */
|
||
n_infiles++;
|
||
n_switches++;
|
||
|
||
/* 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);
|
||
}
|
||
else if (strncmp (argv[i], "-fhelp=", 7) == 0)
|
||
{
|
||
/* translate_options () has turned --help into -fhelp. */
|
||
print_subprocess_help = 2;
|
||
|
||
/* We will be passing a dummy file on to the sub-processes. */
|
||
n_infiles++;
|
||
n_switches++;
|
||
}
|
||
else if (strcmp (argv[i], "-ftarget-help") == 0)
|
||
{
|
||
/* translate_options() has turned --target-help into -ftarget-help. */
|
||
print_subprocess_help = 1;
|
||
|
||
/* We will be passing a dummy file on to the sub-processes. */
|
||
n_infiles++;
|
||
n_switches++;
|
||
|
||
/* 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);
|
||
}
|
||
else if (! strcmp (argv[i], "-pass-exit-codes"))
|
||
{
|
||
pass_exit_codes = 1;
|
||
n_switches++;
|
||
}
|
||
else if (! strcmp (argv[i], "-print-search-dirs"))
|
||
print_search_dirs = 1;
|
||
else if (! strcmp (argv[i], "-print-libgcc-file-name"))
|
||
print_file_name = "libgcc.a";
|
||
else if (! strncmp (argv[i], "-print-file-name=", 17))
|
||
print_file_name = argv[i] + 17;
|
||
else if (! strncmp (argv[i], "-print-prog-name=", 17))
|
||
print_prog_name = argv[i] + 17;
|
||
else if (! strcmp (argv[i], "-print-multi-lib"))
|
||
print_multi_lib = 1;
|
||
else if (! strcmp (argv[i], "-print-multi-directory"))
|
||
print_multi_directory = 1;
|
||
else if (! strcmp (argv[i], "-print-sysroot"))
|
||
print_sysroot = 1;
|
||
else if (! strcmp (argv[i], "-print-multi-os-directory"))
|
||
print_multi_os_directory = 1;
|
||
else if (! strcmp (argv[i], "-print-sysroot-headers-suffix"))
|
||
print_sysroot_headers_suffix = 1;
|
||
else if (! strncmp (argv[i], "-Wa,", 4))
|
||
{
|
||
int prev, j;
|
||
/* Pass the rest of this option to the assembler. */
|
||
|
||
/* Split the argument at commas. */
|
||
prev = 4;
|
||
for (j = 4; argv[i][j]; j++)
|
||
if (argv[i][j] == ',')
|
||
{
|
||
add_assembler_option (argv[i] + prev, j - prev);
|
||
prev = j + 1;
|
||
}
|
||
|
||
/* Record the part after the last comma. */
|
||
add_assembler_option (argv[i] + prev, j - prev);
|
||
}
|
||
else if (! strncmp (argv[i], "-Wp,", 4))
|
||
{
|
||
int prev, j;
|
||
/* Pass the rest of this option to the preprocessor. */
|
||
|
||
/* Split the argument at commas. */
|
||
prev = 4;
|
||
for (j = 4; argv[i][j]; j++)
|
||
if (argv[i][j] == ',')
|
||
{
|
||
add_preprocessor_option (argv[i] + prev, j - prev);
|
||
prev = j + 1;
|
||
}
|
||
|
||
/* Record the part after the last comma. */
|
||
add_preprocessor_option (argv[i] + prev, j - prev);
|
||
}
|
||
else if (argv[i][0] == '+' && argv[i][1] == 'e')
|
||
/* The +e options to the C++ front-end. */
|
||
n_switches++;
|
||
else if (strncmp (argv[i], "-Wl,", 4) == 0)
|
||
{
|
||
int j;
|
||
/* Split the argument at commas. */
|
||
for (j = 3; argv[i][j]; j++)
|
||
n_infiles += (argv[i][j] == ',');
|
||
}
|
||
else if (strcmp (argv[i], "-Xlinker") == 0)
|
||
{
|
||
if (i + 1 == argc)
|
||
fatal ("argument to '-Xlinker' is missing");
|
||
|
||
n_infiles++;
|
||
i++;
|
||
}
|
||
else if (strcmp (argv[i], "-Xpreprocessor") == 0)
|
||
{
|
||
if (i + 1 == argc)
|
||
fatal ("argument to '-Xpreprocessor' is missing");
|
||
|
||
add_preprocessor_option (argv[i+1], strlen (argv[i+1]));
|
||
}
|
||
else if (strcmp (argv[i], "-Xassembler") == 0)
|
||
{
|
||
if (i + 1 == argc)
|
||
fatal ("argument to '-Xassembler' is missing");
|
||
|
||
add_assembler_option (argv[i+1], strlen (argv[i+1]));
|
||
}
|
||
else if (strcmp (argv[i], "-l") == 0)
|
||
{
|
||
if (i + 1 == argc)
|
||
fatal ("argument to '-l' is missing");
|
||
|
||
n_infiles++;
|
||
i++;
|
||
}
|
||
else if (strncmp (argv[i], "-l", 2) == 0)
|
||
n_infiles++;
|
||
else if (strcmp (argv[i], "-save-temps") == 0)
|
||
{
|
||
save_temps_flag = 1;
|
||
n_switches++;
|
||
}
|
||
else if (strcmp (argv[i], "-combine") == 0)
|
||
{
|
||
combine_flag = 1;
|
||
n_switches++;
|
||
}
|
||
else if (strcmp (argv[i], "-specs") == 0)
|
||
{
|
||
struct user_specs *user = XNEW (struct user_specs);
|
||
if (++i >= argc)
|
||
fatal ("argument to '-specs' is missing");
|
||
|
||
user->next = (struct user_specs *) 0;
|
||
user->filename = argv[i];
|
||
if (user_specs_tail)
|
||
user_specs_tail->next = user;
|
||
else
|
||
user_specs_head = user;
|
||
user_specs_tail = user;
|
||
}
|
||
else if (strncmp (argv[i], "-specs=", 7) == 0)
|
||
{
|
||
struct user_specs *user = XNEW (struct user_specs);
|
||
if (strlen (argv[i]) == 7)
|
||
fatal ("argument to '-specs=' is missing");
|
||
|
||
user->next = (struct user_specs *) 0;
|
||
user->filename = argv[i] + 7;
|
||
if (user_specs_tail)
|
||
user_specs_tail->next = user;
|
||
else
|
||
user_specs_head = user;
|
||
user_specs_tail = user;
|
||
}
|
||
else if (strcmp (argv[i], "-time") == 0)
|
||
report_times = 1;
|
||
else if (strcmp (argv[i], "-pipe") == 0)
|
||
{
|
||
/* -pipe has to go into the switches array as well as
|
||
setting a flag. */
|
||
use_pipes = 1;
|
||
n_switches++;
|
||
}
|
||
else if (strcmp (argv[i], "-wrapper") == 0)
|
||
{
|
||
if (++i >= argc)
|
||
fatal ("argument to '-wrapper' is missing");
|
||
|
||
wrapper_string = argv[i];
|
||
n_switches++;
|
||
n_switches++;
|
||
}
|
||
else if (strcmp (argv[i], "-###") == 0)
|
||
{
|
||
/* 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++;
|
||
}
|
||
else if (argv[i][0] == '-' && argv[i][1] != 0)
|
||
{
|
||
const char *p = &argv[i][1];
|
||
int c = *p;
|
||
|
||
switch (c)
|
||
{
|
||
case 'b':
|
||
if (p[1] && NULL == strchr (argv[i] + 2, '-'))
|
||
goto normal_switch;
|
||
|
||
/* Fall through. */
|
||
case 'V':
|
||
fatal ("'-%c' must come at the start of the command line", c);
|
||
break;
|
||
|
||
case 'B':
|
||
{
|
||
const char *value;
|
||
int len;
|
||
|
||
if (p[1] == 0 && i + 1 == argc)
|
||
fatal ("argument to '-B' is missing");
|
||
if (p[1] == 0)
|
||
value = argv[++i];
|
||
else
|
||
value = p + 1;
|
||
|
||
len = strlen (value);
|
||
|
||
/* 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 (value [len - 1])
|
||
&& is_directory (value, false))
|
||
{
|
||
char *tmp = XNEWVEC (char, len + 2);
|
||
strcpy (tmp, value);
|
||
tmp[len] = DIR_SEPARATOR;
|
||
tmp[++ len] = 0;
|
||
value = tmp;
|
||
}
|
||
|
||
add_prefix (&exec_prefixes, value, NULL,
|
||
PREFIX_PRIORITY_B_OPT, 0, 0);
|
||
add_prefix (&startfile_prefixes, value, NULL,
|
||
PREFIX_PRIORITY_B_OPT, 0, 0);
|
||
add_prefix (&include_prefixes, value, NULL,
|
||
PREFIX_PRIORITY_B_OPT, 0, 0);
|
||
n_switches++;
|
||
}
|
||
break;
|
||
|
||
case 'v': /* Print our subcommands and print versions. */
|
||
n_switches++;
|
||
/* If they do anything other than exactly `-v', don't set
|
||
verbose_flag; rather, continue on to give the error. */
|
||
if (p[1] != 0)
|
||
break;
|
||
verbose_flag++;
|
||
break;
|
||
|
||
case 'S':
|
||
case 'c':
|
||
if (p[1] == 0)
|
||
{
|
||
have_c = 1;
|
||
n_switches++;
|
||
break;
|
||
}
|
||
goto normal_switch;
|
||
|
||
case 'o':
|
||
have_o = 1;
|
||
#if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
|
||
if (! have_c)
|
||
{
|
||
int skip;
|
||
|
||
/* Forward scan, just in case -S or -c is specified
|
||
after -o. */
|
||
int j = i + 1;
|
||
if (p[1] == 0)
|
||
++j;
|
||
while (j < argc)
|
||
{
|
||
if (argv[j][0] == '-')
|
||
{
|
||
if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
|
||
&& argv[j][2] == 0)
|
||
{
|
||
have_c = 1;
|
||
break;
|
||
}
|
||
else if ((skip = SWITCH_TAKES_ARG (argv[j][1])))
|
||
j += skip - (argv[j][2] != 0);
|
||
else if ((skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1)))
|
||
j += skip;
|
||
}
|
||
j++;
|
||
}
|
||
}
|
||
#endif
|
||
#if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
|
||
if (p[1] == 0)
|
||
argv[i + 1] = convert_filename (argv[i + 1], ! have_c, 0);
|
||
else
|
||
argv[i] = convert_filename (argv[i], ! have_c, 0);
|
||
#endif
|
||
goto normal_switch;
|
||
|
||
default:
|
||
normal_switch:
|
||
|
||
#ifdef MODIFY_TARGET_NAME
|
||
is_modify_target_name = 0;
|
||
|
||
for (j = 0; j < ARRAY_SIZE (modify_target); j++)
|
||
if (! strcmp (argv[i], modify_target[j].sw))
|
||
{
|
||
char *new_name = XNEWVEC (char, strlen (modify_target[j].str)
|
||
+ strlen (spec_machine));
|
||
const char *p, *r;
|
||
char *q;
|
||
int made_addition = 0;
|
||
|
||
is_modify_target_name = 1;
|
||
for (p = spec_machine, q = new_name; *p != 0; )
|
||
{
|
||
if (modify_target[j].add_del == DELETE
|
||
&& (! strncmp (q, modify_target[j].str,
|
||
strlen (modify_target[j].str))))
|
||
p += strlen (modify_target[j].str);
|
||
else if (modify_target[j].add_del == ADD
|
||
&& ! made_addition && *p == '-')
|
||
{
|
||
for (r = modify_target[j].str; *r != 0; )
|
||
*q++ = *r++;
|
||
made_addition = 1;
|
||
}
|
||
|
||
*q++ = *p++;
|
||
}
|
||
|
||
spec_machine = new_name;
|
||
}
|
||
|
||
if (is_modify_target_name)
|
||
break;
|
||
#endif
|
||
|
||
n_switches++;
|
||
|
||
if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
|
||
i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
|
||
else if (WORD_SWITCH_TAKES_ARG (p))
|
||
i += WORD_SWITCH_TAKES_ARG (p);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
n_infiles++;
|
||
lang_n_infiles++;
|
||
}
|
||
}
|
||
|
||
if (save_temps_flag && use_pipes)
|
||
{
|
||
/* -save-temps overrides -pipe, so that temp files are produced */
|
||
if (save_temps_flag)
|
||
error ("warning: -pipe ignored because -save-temps specified");
|
||
use_pipes = 0;
|
||
}
|
||
|
||
/* 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);
|
||
}
|
||
|
||
/* If not cross-compiling, search well-known system locations. */
|
||
if (*cross_compile == '0')
|
||
{
|
||
#ifndef OS2
|
||
add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
|
||
PREFIX_PRIORITY_LAST, 2, 0);
|
||
add_prefix (&exec_prefixes, standard_exec_prefix_2, "BINUTILS",
|
||
PREFIX_PRIORITY_LAST, 2, 0);
|
||
#endif
|
||
add_prefix (&startfile_prefixes, standard_exec_prefix_2, "BINUTILS",
|
||
PREFIX_PRIORITY_LAST, 1, 0);
|
||
}
|
||
|
||
gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix));
|
||
tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
|
||
dir_separator_str, NULL);
|
||
|
||
/* Look for tools relative to the location from which the driver is
|
||
running, or, if that is not available, the configured prefix. */
|
||
tooldir_prefix
|
||
= concat (gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix,
|
||
spec_machine, dir_separator_str,
|
||
spec_version, dir_separator_str, tooldir_prefix, NULL);
|
||
|
||
add_prefix (&exec_prefixes,
|
||
concat (tooldir_prefix, "bin", dir_separator_str, NULL),
|
||
"BINUTILS", PREFIX_PRIORITY_LAST, 0, 0);
|
||
add_prefix (&startfile_prefixes,
|
||
concat (tooldir_prefix, "lib", dir_separator_str, NULL),
|
||
"BINUTILS", PREFIX_PRIORITY_LAST, 0, 1);
|
||
|
||
#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 && gcc_exec_prefix)
|
||
{
|
||
char *tmp_prefix = make_relative_prefix (argv[0],
|
||
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. */
|
||
|
||
/* Then create the space for the vectors and scan again. */
|
||
|
||
switches = XNEWVEC (struct switchstr, n_switches + 1);
|
||
infiles = XNEWVEC (struct infile, n_infiles + 1);
|
||
n_switches = 0;
|
||
n_infiles = 0;
|
||
last_language_n_infiles = -1;
|
||
|
||
/* This, time, copy the text of each switch and store a pointer
|
||
to the copy in the vector of switches.
|
||
Store all the infiles in their vector. */
|
||
|
||
for (i = 1; i < argc; i++)
|
||
{
|
||
/* Just skip the switches that were handled by the preceding loop. */
|
||
#ifdef MODIFY_TARGET_NAME
|
||
is_modify_target_name = 0;
|
||
|
||
for (j = 0; j < ARRAY_SIZE (modify_target); j++)
|
||
if (! strcmp (argv[i], modify_target[j].sw))
|
||
is_modify_target_name = 1;
|
||
|
||
if (is_modify_target_name)
|
||
;
|
||
else
|
||
#endif
|
||
if (! strncmp (argv[i], "-Wa,", 4))
|
||
;
|
||
else if (! strncmp (argv[i], "-Wp,", 4))
|
||
;
|
||
else if (! strcmp (argv[i], "-pass-exit-codes"))
|
||
;
|
||
else if (! strcmp (argv[i], "-print-search-dirs"))
|
||
;
|
||
else if (! strcmp (argv[i], "-print-libgcc-file-name"))
|
||
;
|
||
else if (! strncmp (argv[i], "-print-file-name=", 17))
|
||
;
|
||
else if (! strncmp (argv[i], "-print-prog-name=", 17))
|
||
;
|
||
else if (! strcmp (argv[i], "-print-multi-lib"))
|
||
;
|
||
else if (! strcmp (argv[i], "-print-multi-directory"))
|
||
;
|
||
else if (! strcmp (argv[i], "-print-sysroot"))
|
||
;
|
||
else if (! strcmp (argv[i], "-print-multi-os-directory"))
|
||
;
|
||
else if (! strcmp (argv[i], "-print-sysroot-headers-suffix"))
|
||
;
|
||
else if (! strncmp (argv[i], "--sysroot=", strlen ("--sysroot=")))
|
||
{
|
||
target_system_root = argv[i] + strlen ("--sysroot=");
|
||
target_system_root_changed = 1;
|
||
}
|
||
else if (argv[i][0] == '+' && argv[i][1] == 'e')
|
||
{
|
||
/* Compensate for the +e options to the C++ front-end;
|
||
they're there simply for cfront call-compatibility. We do
|
||
some magic in default_compilers to pass them down properly.
|
||
Note we deliberately start at the `+' here, to avoid passing
|
||
-e0 or -e1 down into the linker. */
|
||
switches[n_switches].part1 = &argv[i][0];
|
||
switches[n_switches].args = 0;
|
||
switches[n_switches].live_cond = 0;
|
||
switches[n_switches].validated = 0;
|
||
n_switches++;
|
||
}
|
||
else if (strncmp (argv[i], "-Wl,", 4) == 0)
|
||
{
|
||
int prev, j;
|
||
/* Split the argument at commas. */
|
||
prev = 4;
|
||
for (j = 4; argv[i][j]; j++)
|
||
if (argv[i][j] == ',')
|
||
{
|
||
infiles[n_infiles].language = "*";
|
||
infiles[n_infiles++].name
|
||
= save_string (argv[i] + prev, j - prev);
|
||
prev = j + 1;
|
||
}
|
||
/* Record the part after the last comma. */
|
||
infiles[n_infiles].language = "*";
|
||
infiles[n_infiles++].name = argv[i] + prev;
|
||
}
|
||
else if (strcmp (argv[i], "-Xlinker") == 0)
|
||
{
|
||
infiles[n_infiles].language = "*";
|
||
infiles[n_infiles++].name = argv[++i];
|
||
}
|
||
/* Xassembler and Xpreprocessor were already handled in the first argv
|
||
scan, so all we need to do here is ignore them and their argument. */
|
||
else if (strcmp (argv[i], "-Xassembler") == 0)
|
||
i++;
|
||
else if (strcmp (argv[i], "-Xpreprocessor") == 0)
|
||
i++;
|
||
else if (strcmp (argv[i], "-l") == 0)
|
||
{ /* POSIX allows separation of -l and the lib arg;
|
||
canonicalize by concatenating -l with its arg */
|
||
infiles[n_infiles].language = "*";
|
||
infiles[n_infiles++].name = concat ("-l", argv[++i], NULL);
|
||
}
|
||
else if (strncmp (argv[i], "-l", 2) == 0)
|
||
{
|
||
infiles[n_infiles].language = "*";
|
||
infiles[n_infiles++].name = argv[i];
|
||
}
|
||
else if (strcmp (argv[i], "-wrapper") == 0)
|
||
i++;
|
||
else if (strcmp (argv[i], "-specs") == 0)
|
||
i++;
|
||
else if (strncmp (argv[i], "-specs=", 7) == 0)
|
||
;
|
||
else if (strcmp (argv[i], "-time") == 0)
|
||
;
|
||
else if (strcmp (argv[i], "-###") == 0)
|
||
;
|
||
else if (argv[i][0] == '-' && argv[i][1] != 0)
|
||
{
|
||
const char *p = &argv[i][1];
|
||
int c = *p;
|
||
|
||
if (c == 'x')
|
||
{
|
||
if (p[1] == 0 && i + 1 == argc)
|
||
fatal ("argument to '-x' is missing");
|
||
if (p[1] == 0)
|
||
spec_lang = argv[++i];
|
||
else
|
||
spec_lang = p + 1;
|
||
if (! strcmp (spec_lang, "none"))
|
||
/* Suppress the warning if -xnone comes after the last input
|
||
file, because alternate command interfaces like g++ might
|
||
find it useful to place -xnone after each input file. */
|
||
spec_lang = 0;
|
||
else
|
||
last_language_n_infiles = n_infiles;
|
||
continue;
|
||
}
|
||
switches[n_switches].part1 = p;
|
||
/* Deal with option arguments in separate argv elements. */
|
||
if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
|
||
|| WORD_SWITCH_TAKES_ARG (p))
|
||
{
|
||
int j = 0;
|
||
int n_args = WORD_SWITCH_TAKES_ARG (p);
|
||
|
||
if (n_args == 0)
|
||
{
|
||
/* Count only the option arguments in separate argv elements. */
|
||
n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
|
||
}
|
||
if (i + n_args >= argc)
|
||
fatal ("argument to '-%s' is missing", p);
|
||
switches[n_switches].args
|
||
= XNEWVEC (const char *, n_args + 1);
|
||
while (j < n_args)
|
||
switches[n_switches].args[j++] = argv[++i];
|
||
/* Null-terminate the vector. */
|
||
switches[n_switches].args[j] = 0;
|
||
}
|
||
else if (strchr (switches_need_spaces, c))
|
||
{
|
||
/* On some systems, ld cannot handle some options without
|
||
a space. So split the option from its argument. */
|
||
char *part1 = XNEWVEC (char, 2);
|
||
part1[0] = c;
|
||
part1[1] = '\0';
|
||
|
||
switches[n_switches].part1 = part1;
|
||
switches[n_switches].args = XNEWVEC (const char *, 2);
|
||
switches[n_switches].args[0] = xstrdup (p+1);
|
||
switches[n_switches].args[1] = 0;
|
||
}
|
||
else
|
||
switches[n_switches].args = 0;
|
||
|
||
switches[n_switches].live_cond = 0;
|
||
switches[n_switches].validated = 0;
|
||
switches[n_switches].ordering = 0;
|
||
/* These are always valid, since gcc.c itself understands the
|
||
first four and gfortranspec.c understands -static-libgfortran. */
|
||
if (!strcmp (p, "save-temps")
|
||
|| !strcmp (p, "static-libgcc")
|
||
|| !strcmp (p, "shared-libgcc")
|
||
|| !strcmp (p, "pipe")
|
||
|| !strcmp (p, "static-libgfortran"))
|
||
switches[n_switches].validated = 1;
|
||
else
|
||
{
|
||
char ch = switches[n_switches].part1[0];
|
||
if (ch == 'B')
|
||
switches[n_switches].validated = 1;
|
||
}
|
||
n_switches++;
|
||
}
|
||
else
|
||
{
|
||
#ifdef HAVE_TARGET_OBJECT_SUFFIX
|
||
argv[i] = convert_filename (argv[i], 0, access (argv[i], F_OK));
|
||
#endif
|
||
|
||
if (strcmp (argv[i], "-") != 0 && access (argv[i], F_OK) < 0)
|
||
{
|
||
perror_with_name (argv[i]);
|
||
error_count++;
|
||
}
|
||
else
|
||
{
|
||
infiles[n_infiles].language = spec_lang;
|
||
infiles[n_infiles++].name = argv[i];
|
||
}
|
||
}
|
||
}
|
||
|
||
if (n_infiles == last_language_n_infiles && spec_lang != 0)
|
||
error ("warning: '-x %s' after last input file has no effect", spec_lang);
|
||
|
||
/* Ensure we only invoke each subprocess once. */
|
||
if (print_subprocess_help || print_help_list)
|
||
{
|
||
n_infiles = 1;
|
||
|
||
/* Create a dummy input file, so that we can pass
|
||
the help option on to the various sub-processes. */
|
||
infiles[0].language = "c";
|
||
infiles[0].name = "help-dummy";
|
||
}
|
||
|
||
switches[n_switches].part1 = 0;
|
||
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) != 0)
|
||
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 *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 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);
|
||
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;
|
||
|
||
do
|
||
{
|
||
n++;
|
||
while (*p == ',')
|
||
p++;
|
||
}
|
||
while ((p = strchr (p, ',')) != NULL);
|
||
|
||
if (argbuf_index + n >= argbuf_length)
|
||
{
|
||
argbuf_length = argbuf_length * 2;
|
||
while (argbuf_length < argbuf_index + n)
|
||
argbuf_length *= 2;
|
||
argbuf = XRESIZEVEC (const char *, argbuf, argbuf_length);
|
||
}
|
||
for (i = argbuf_index - 1; i >= 0; i--)
|
||
argbuf[i + n] = argbuf[i];
|
||
|
||
i = 0;
|
||
p = buf;
|
||
do
|
||
{
|
||
while (*p == ',')
|
||
{
|
||
*p = 0;
|
||
p++;
|
||
}
|
||
argbuf[i++] = p;
|
||
}
|
||
while ((p = strchr (p, ',')) != NULL);
|
||
gcc_assert (i == n);
|
||
argbuf_index += 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_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
|
||
argbuf_index--;
|
||
|
||
set_collect_gcc_options ();
|
||
|
||
if (argbuf_index > 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;
|
||
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)
|
||
{
|
||
do_spec_2 (spec);
|
||
do_spec_1 (" ", 0, NULL);
|
||
|
||
if (argbuf_index > 0)
|
||
{
|
||
int i, first;
|
||
|
||
first = n_switches;
|
||
n_switches += argbuf_index;
|
||
switches = XRESIZEVEC (struct switchstr, switches, n_switches + 1);
|
||
|
||
switches[n_switches] = switches[first];
|
||
for (i = 0; i < argbuf_index; i++)
|
||
{
|
||
struct switchstr *sw;
|
||
|
||
/* Each switch should start with '-'. */
|
||
if (argbuf[i][0] != '-')
|
||
fatal ("switch '%s' does not start with '-'", argbuf[i]);
|
||
|
||
sw = &switches[i + first];
|
||
sw->part1 = &argbuf[i][1];
|
||
sw->args = 0;
|
||
sw->live_cond = 0;
|
||
sw->validated = 0;
|
||
sw->ordering = 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;
|
||
}
|
||
|
||
/* 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;
|
||
|
||
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_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
|
||
{
|
||
/* 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_index--;
|
||
}
|
||
|
||
set_collect_gcc_options ();
|
||
|
||
if (argbuf_index > 0)
|
||
{
|
||
value = execute ();
|
||
if (value)
|
||
return value;
|
||
}
|
||
/* Reinitialize for a new command, and for a new argument. */
|
||
clear_args ();
|
||
arg_going = 0;
|
||
delete_this_arg = 0;
|
||
this_is_output_file = 0;
|
||
this_is_library_file = 0;
|
||
input_from_pipe = 0;
|
||
break;
|
||
|
||
case '|':
|
||
end_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;
|
||
break;
|
||
|
||
case '%':
|
||
switch (c = *p++)
|
||
{
|
||
case 0:
|
||
fatal ("spec '%s' invalid", spec);
|
||
|
||
case 'b':
|
||
obstack_grow (&obstack, input_basename, basename_length);
|
||
arg_going = 1;
|
||
break;
|
||
|
||
case 'B':
|
||
obstack_grow (&obstack, input_basename, suffixed_basename_length);
|
||
arg_going = 1;
|
||
break;
|
||
|
||
case 'd':
|
||
delete_this_arg = 2;
|
||
break;
|
||
|
||
/* Dump out the directories specified with LIBRARY_PATH,
|
||
followed by the absolute directories
|
||
that we search for startfiles. */
|
||
case 'D':
|
||
{
|
||
struct 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;
|
||
notice ("%s\n", 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 ("spec '%s' 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 the 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;
|
||
tmp = (char *) alloca (temp_filename_length + 1);
|
||
strncpy (tmp, input_basename, basename_length);
|
||
strncpy (tmp + basename_length, suffix, suffix_length);
|
||
tmp[temp_filename_length] = '\0';
|
||
temp_filename = tmp;
|
||
if (strcmp (temp_filename, 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 (input_filename, &input_stat);
|
||
if (input_stat_set >= 0)
|
||
input_stat_set = 1;
|
||
}
|
||
|
||
/* If we have the stat for the 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 (input_filename);
|
||
char* temp_realname = lrealpath (temp_filename);
|
||
bool files_differ = strcmp (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;
|
||
}
|
||
|
||
if (saved_suffix)
|
||
free (saved_suffix);
|
||
|
||
obstack_grow (&obstack, t->filename, t->filename_length);
|
||
delete_this_arg = 1;
|
||
}
|
||
arg_going = 1;
|
||
break;
|
||
|
||
case 'i':
|
||
if (combine_inputs)
|
||
{
|
||
for (i = 0; (int) i < n_infiles; i++)
|
||
if ((!infiles[i].language) || (infiles[i].language[0] != '*'))
|
||
if (infiles[i].incompiler == input_file_compiler)
|
||
{
|
||
store_arg (infiles[i].name, 0, 0);
|
||
infiles[i].compiled = true;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
obstack_grow (&obstack, 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 (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 *temp_file = make_temp_file ("");
|
||
char *at_argument;
|
||
char **argv;
|
||
int n_files, j, status;
|
||
FILE *f;
|
||
|
||
at_argument = concat ("@", temp_file, NULL);
|
||
store_arg (at_argument, 0, 0);
|
||
|
||
/* Convert OUTFILES into a form suitable for writeargv. */
|
||
|
||
/* Determine how many are non-NULL. */
|
||
for (n_files = 0, i = 0; i < max; i++)
|
||
n_files += outfiles[i] != NULL;
|
||
|
||
argv = (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;
|
||
|
||
f = fopen (temp_file, "w");
|
||
|
||
if (f == NULL)
|
||
fatal ("could not open temporary response file %s",
|
||
temp_file);
|
||
|
||
status = writeargv (argv, f);
|
||
|
||
if (status)
|
||
fatal ("could not write to temporary response file %s",
|
||
temp_file);
|
||
|
||
status = fclose (f);
|
||
|
||
if (EOF == status)
|
||
fatal ("could not close temporary response file %s",
|
||
temp_file);
|
||
|
||
record_temp_file (temp_file, !save_temps_flag, !save_temps_flag);
|
||
}
|
||
else
|
||
for (i = 0; i < max; i++)
|
||
if (outfiles[i])
|
||
store_arg (outfiles[i], 0, 0);
|
||
break;
|
||
}
|
||
|
||
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 'V':
|
||
outfiles[input_file_number] = NULL;
|
||
break;
|
||
|
||
case 'w':
|
||
this_is_output_file = 1;
|
||
break;
|
||
|
||
case 'W':
|
||
{
|
||
int cur_index = argbuf_index;
|
||
/* Handle the {...} following the %W. */
|
||
if (*p != '{')
|
||
fatal ("spec '%s' 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_index != cur_index)
|
||
record_temp_file (argbuf[argbuf_index - 1], 0, 1);
|
||
break;
|
||
}
|
||
|
||
/* %x{OPTION} records OPTION for %X to output. */
|
||
case 'x':
|
||
{
|
||
const char *p1 = p;
|
||
char *string;
|
||
|
||
/* Skip past the option value and make a copy. */
|
||
if (*p != '{')
|
||
fatal ("spec '%s' has invalid '%%x%c'", spec, *p);
|
||
while (*p++ != '}')
|
||
;
|
||
string = save_string (p1 + 1, p - p1 - 2);
|
||
|
||
/* See if we already recorded this option. */
|
||
for (i = 0; i < n_linker_options; i++)
|
||
if (! strcmp (string, linker_options[i]))
|
||
{
|
||
free (string);
|
||
return 0;
|
||
}
|
||
|
||
/* This option is new; add it. */
|
||
add_linker_option (string, strlen (string));
|
||
}
|
||
break;
|
||
|
||
/* Dump out the options accumulated previously using %x. */
|
||
case 'X':
|
||
for (i = 0; i < n_linker_options; i++)
|
||
{
|
||
do_spec_1 (linker_options[i], 1, NULL);
|
||
/* Make each accumulated option a separate argument. */
|
||
do_spec_1 (" ", 0, NULL);
|
||
}
|
||
break;
|
||
|
||
/* Dump out the options accumulated previously using -Wa,. */
|
||
case 'Y':
|
||
for (i = 0; i < n_assembler_options; i++)
|
||
{
|
||
do_spec_1 (assembler_options[i], 1, NULL);
|
||
/* Make each accumulated option a separate argument. */
|
||
do_spec_1 (" ", 0, NULL);
|
||
}
|
||
break;
|
||
|
||
/* Dump out the options accumulated previously using -Wp,. */
|
||
case 'Z':
|
||
for (i = 0; i < n_preprocessor_options; i++)
|
||
{
|
||
do_spec_1 (preprocessor_options[i], 1, NULL);
|
||
/* Make each accumulated option a separate argument. */
|
||
do_spec_1 (" ", 0, NULL);
|
||
}
|
||
break;
|
||
|
||
/* Here are digits and numbers that just process
|
||
a certain constant string as a spec. */
|
||
|
||
case '1':
|
||
value = do_spec_1 (cc1_spec, 0, NULL);
|
||
if (value != 0)
|
||
return value;
|
||
break;
|
||
|
||
case '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 '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);
|
||
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 '<':
|
||
{
|
||
unsigned len = 0;
|
||
int have_wildcard = 0;
|
||
int i;
|
||
|
||
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_IGNORE;
|
||
switches[i].validated = 1;
|
||
}
|
||
|
||
p += len;
|
||
}
|
||
break;
|
||
|
||
case '*':
|
||
if (soft_matched_part)
|
||
{
|
||
do_spec_1 (soft_matched_part, 1, NULL);
|
||
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.
|
||
%[...] modifies -D options the way %P does;
|
||
%(...) uses the spec unmodified. */
|
||
case '[':
|
||
error ("warning: use of obsolete %%[ operator in specs");
|
||
case '(':
|
||
{
|
||
const char *name = p;
|
||
struct spec_list *sl;
|
||
int len;
|
||
|
||
/* The string after the S/P is the name of a spec that is to be
|
||
processed. */
|
||
while (*p && *p != ')' && *p != ']')
|
||
p++;
|
||
|
||
/* See if it's in the list. */
|
||
for (len = p - name, sl = specs; sl; sl = sl->next)
|
||
if (sl->name_len == len && !strncmp (sl->name, name, len))
|
||
{
|
||
name = *(sl->ptr_spec);
|
||
#ifdef DEBUG_SPECS
|
||
notice ("Processing spec %c%s%c, which is '%s'\n",
|
||
c, sl->name, (c == '(') ? ')' : ']', name);
|
||
#endif
|
||
break;
|
||
}
|
||
|
||
if (sl)
|
||
{
|
||
if (c == '(')
|
||
{
|
||
value = do_spec_1 (name, 0, NULL);
|
||
if (value != 0)
|
||
return value;
|
||
}
|
||
else
|
||
{
|
||
char *x = (char *) alloca (strlen (name) * 2 + 1);
|
||
char *buf = x;
|
||
const char *y = name;
|
||
int flag = 0;
|
||
|
||
/* Copy all of NAME into BUF, but put __ after
|
||
every -D and at the end of each arg. */
|
||
while (1)
|
||
{
|
||
if (! strncmp (y, "-D", 2))
|
||
{
|
||
*x++ = '-';
|
||
*x++ = 'D';
|
||
*x++ = '_';
|
||
*x++ = '_';
|
||
y += 2;
|
||
flag = 1;
|
||
continue;
|
||
}
|
||
else if (flag
|
||
&& (*y == ' ' || *y == '\t' || *y == '='
|
||
|| *y == '}' || *y == 0))
|
||
{
|
||
*x++ = '_';
|
||
*x++ = '_';
|
||
flag = 0;
|
||
}
|
||
if (*y == 0)
|
||
break;
|
||
else
|
||
*x++ = *y++;
|
||
}
|
||
*x = 0;
|
||
|
||
value = do_spec_1 (buf, 0, NULL);
|
||
if (value != 0)
|
||
return value;
|
||
}
|
||
}
|
||
|
||
/* Discard the closing paren or bracket. */
|
||
if (*p)
|
||
p++;
|
||
}
|
||
break;
|
||
|
||
default:
|
||
error ("spec failure: unrecognized spec option '%c'", 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. */
|
||
int save_argbuf_index;
|
||
int save_argbuf_length;
|
||
const char **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;
|
||
const char *save_suffix_subst;
|
||
|
||
|
||
sf = lookup_spec_function (func);
|
||
if (sf == NULL)
|
||
fatal ("unknown spec function '%s'", func);
|
||
|
||
/* Push the spec processing context. */
|
||
save_argbuf_index = argbuf_index;
|
||
save_argbuf_length = argbuf_length;
|
||
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_input_from_pipe = input_from_pipe;
|
||
save_suffix_subst = suffix_subst;
|
||
|
||
/* Create a new spec processing context, and build the function
|
||
arguments. */
|
||
|
||
alloc_args ();
|
||
if (do_spec_2 (args) < 0)
|
||
fatal ("error in args to spec function '%s'", 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_index, argbuf);
|
||
|
||
/* Pop the spec processing context. */
|
||
argbuf_index = save_argbuf_index;
|
||
argbuf_length = save_argbuf_length;
|
||
free (argbuf);
|
||
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;
|
||
input_from_pipe = save_input_from_pipe;
|
||
suffix_subst = save_suffix_subst;
|
||
|
||
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. */
|
||
|
||
static const char *
|
||
handle_spec_function (const char *p)
|
||
{
|
||
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 ("malformed spec function name");
|
||
}
|
||
if (*endp != '(') /* ) */
|
||
fatal ("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 ("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;
|
||
|
||
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;
|
||
|
||
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++, 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 == 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 (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 ("braced spec '%s' is invalid at '%c'", 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 ("braced spec body '%s' 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, -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;
|
||
|
||
/* In the common case of {<at-most-one-letter>*}, a negating
|
||
switch would always match, so ignore that case. We will just
|
||
send the conflicting switches to the compiler phase. */
|
||
if (prefix_length >= 0 && prefix_length <= 1)
|
||
return 1;
|
||
|
||
/* If we already processed this switch and determined if it was
|
||
live or not, return our past determination. */
|
||
if (switches[switchnum].live_cond != 0)
|
||
return ((switches[switchnum].live_cond & SWITCH_LIVE) != 0
|
||
&& (switches[switchnum].live_cond & SWITCH_FALSE) == 0);
|
||
|
||
/* Now search for duplicate in a manner that depends on the name. */
|
||
switch (*name)
|
||
{
|
||
case 'O':
|
||
for (i = switchnum + 1; i < n_switches; i++)
|
||
if (switches[i].part1[0] == 'O')
|
||
{
|
||
switches[switchnum].validated = 1;
|
||
switches[switchnum].live_cond = SWITCH_FALSE;
|
||
return 0;
|
||
}
|
||
break;
|
||
|
||
case 'W': case 'f': case 'm':
|
||
if (! strncmp (name + 1, "no-", 3))
|
||
{
|
||
/* We have Xno-YYY, search for XYYY. */
|
||
for (i = switchnum + 1; i < n_switches; i++)
|
||
if (switches[i].part1[0] == name[0]
|
||
&& ! strcmp (&switches[i].part1[1], &name[4]))
|
||
{
|
||
switches[switchnum].validated = 1;
|
||
switches[switchnum].live_cond = 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]))
|
||
{
|
||
switches[switchnum].validated = 1;
|
||
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 = 1;
|
||
}
|
||
|
||
/* Search for a file named NAME trying various prefixes including the
|
||
user's -B prefix and some standard ones.
|
||
Return the absolute file name found. If nothing is found, return NAME. */
|
||
|
||
static const char *
|
||
find_file (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
|
||
&& strncmp (path + 1, "lib", 3) == 0)
|
||
|| (cp - path == 10
|
||
&& strncmp (path + 1, "usr", 3) == 0
|
||
&& IS_DIR_SEPARATOR (path[4])
|
||
&& strncmp (path + 5, "lib", 3) == 0)))
|
||
return 0;
|
||
|
||
return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
|
||
}
|
||
|
||
/* 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;
|
||
|
||
input_filename = filename;
|
||
input_filename_length = strlen (input_filename);
|
||
|
||
input_basename = input_filename;
|
||
#ifdef HAVE_DOS_BASED_FILE_SYSTEM
|
||
/* Skip drive name so 'x:foo' is handled properly. */
|
||
if (input_basename[1] == ':')
|
||
input_basename += 2;
|
||
#endif
|
||
for (p = input_basename; *p; p++)
|
||
if (IS_DIR_SEPARATOR (*p))
|
||
input_basename = p + 1;
|
||
|
||
/* Find a suffix starting with the last period,
|
||
and set basename_length to exclude that suffix. */
|
||
basename_length = strlen (input_basename);
|
||
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 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_error (int signum)
|
||
{
|
||
signal (signum, SIG_DFL);
|
||
delete_failure_queue ();
|
||
delete_temp_files ();
|
||
/* Get the same signal again, this time not handled,
|
||
so its normal effect occurs. */
|
||
kill (getpid (), signum);
|
||
}
|
||
|
||
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;
|
||
const char *p;
|
||
struct user_specs *uptr;
|
||
char **old_argv = argv;
|
||
|
||
/* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
|
||
on ?: in file-scope variable initializations. */
|
||
asm_debug = ASM_DEBUG_SPEC;
|
||
|
||
p = argv[0] + strlen (argv[0]);
|
||
while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
|
||
--p;
|
||
programname = p;
|
||
|
||
xmalloc_set_program_name (programname);
|
||
|
||
expandargv (&argc, &argv);
|
||
|
||
/* Determine if any expansions were made. */
|
||
if (argv != old_argv)
|
||
at_file_supplied = true;
|
||
|
||
prune_options (&argc, &argv);
|
||
|
||
#ifdef GCC_DRIVER_HOST_INITIALIZATION
|
||
/* Perform host dependent initialization when needed. */
|
||
GCC_DRIVER_HOST_INITIALIZATION;
|
||
#endif
|
||
|
||
/* Unlock the stdio streams. */
|
||
unlock_std_streams ();
|
||
|
||
gcc_init_libintl ();
|
||
|
||
if (signal (SIGINT, SIG_IGN) != SIG_IGN)
|
||
signal (SIGINT, fatal_error);
|
||
#ifdef SIGHUP
|
||
if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
|
||
signal (SIGHUP, fatal_error);
|
||
#endif
|
||
if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
|
||
signal (SIGTERM, fatal_error);
|
||
#ifdef SIGPIPE
|
||
if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
|
||
signal (SIGPIPE, fatal_error);
|
||
#endif
|
||
#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
|
||
|
||
/* 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 *);
|
||
|
||
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 *);
|
||
}
|
||
|
||
/* Set up to remember the pathname of gcc and any options
|
||
needed for collect. We use argv[0] instead of programname because
|
||
we need the complete pathname. */
|
||
obstack_init (&collect_obstack);
|
||
obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
|
||
obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
|
||
xputenv (XOBFINISH (&collect_obstack, 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 (argc, (const char **) argv);
|
||
|
||
/* 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);
|
||
else
|
||
init_spec ();
|
||
|
||
/* We need to check standard_exec_prefix/just_machine_suffix/specs
|
||
for any override of as, ld and libraries. */
|
||
specs_file = (char *) alloca (strlen (standard_exec_prefix)
|
||
+ strlen (just_machine_suffix) + sizeof ("specs"));
|
||
|
||
strcpy (specs_file, standard_exec_prefix);
|
||
strcat (specs_file, just_machine_suffix);
|
||
strcat (specs_file, "specs");
|
||
if (access (specs_file, R_OK) == 0)
|
||
read_specs (specs_file, TRUE);
|
||
|
||
/* Process any 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
|
||
&& do_spec_2 (sysroot_suffix_spec) == 0)
|
||
{
|
||
if (argbuf_index > 1)
|
||
error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
|
||
else if (argbuf_index == 1)
|
||
target_sysroot_suffix = xstrdup (argbuf[argbuf_index -1]);
|
||
}
|
||
|
||
#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 *));
|
||
}
|
||
#endif
|
||
|
||
/* Process sysroot_hdrs_suffix_spec. */
|
||
if (*sysroot_hdrs_suffix_spec != 0
|
||
&& do_spec_2 (sysroot_hdrs_suffix_spec) == 0)
|
||
{
|
||
if (argbuf_index > 1)
|
||
error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
|
||
else if (argbuf_index == 1)
|
||
target_sysroot_hdrs_suffix = xstrdup (argbuf[argbuf_index -1]);
|
||
}
|
||
|
||
/* 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)
|
||
{
|
||
int ndx;
|
||
for (ndx = 0; ndx < argbuf_index; ndx++)
|
||
add_sysrooted_prefix (&startfile_prefixes, argbuf[ndx], "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);
|
||
}
|
||
|
||
/* 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 ();
|
||
|
||
/* Warn about any switches that no pass was interested in. */
|
||
|
||
for (i = 0; (int) i < n_switches; i++)
|
||
if (! switches[i].validated)
|
||
error ("unrecognized option '-%s'", switches[i].part1);
|
||
|
||
/* Obey some of the options. */
|
||
|
||
if (print_search_dirs)
|
||
{
|
||
printf (_("install: %s%s\n"),
|
||
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)
|
||
{
|
||
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_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 ("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 (verbose_flag)
|
||
{
|
||
int n;
|
||
const char *thrmod;
|
||
|
||
notice ("Target: %s\n", spec_machine);
|
||
notice ("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
|
||
|
||
notice ("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)
|
||
notice ("gcc version %s %s\n", version_string, pkgversion_string);
|
||
else
|
||
notice ("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 ("no input files");
|
||
|
||
/* Make a place to record the compiler output file names
|
||
that correspond to the input files. */
|
||
|
||
i = n_infiles;
|
||
i += lang_specific_extra_outfiles;
|
||
outfiles = XCNEWVEC (const char *, i);
|
||
|
||
/* Record which files were specified explicitly as link input. */
|
||
|
||
explicit_link_files = XCNEWVEC (char, n_infiles);
|
||
|
||
if (combine_flag)
|
||
combine_inputs = true;
|
||
else
|
||
combine_inputs = false;
|
||
|
||
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 ("cannot specify -o with -c or -S with multiple files");
|
||
|
||
if (combine_flag && save_temps_flag)
|
||
{
|
||
bool save_combine_inputs = combine_inputs;
|
||
/* Must do a separate pre-processing pass for C & Objective-C files, to
|
||
obtain individual .i files. */
|
||
|
||
combine_inputs = false;
|
||
for (i = 0; (int) i < n_infiles; i++)
|
||
{
|
||
int this_file_error = 0;
|
||
|
||
input_file_number = i;
|
||
set_input (infiles[i].name);
|
||
if (infiles[i].incompiler
|
||
&& (infiles[i].incompiler)->needs_preprocessing)
|
||
input_file_compiler = infiles[i].incompiler;
|
||
else
|
||
continue;
|
||
|
||
if (input_file_compiler)
|
||
{
|
||
if (input_file_compiler->spec[0] == '#')
|
||
{
|
||
error ("%s: %s compiler not installed on this system",
|
||
input_filename, &input_file_compiler->spec[1]);
|
||
this_file_error = 1;
|
||
}
|
||
else
|
||
{
|
||
value = do_spec (input_file_compiler->spec);
|
||
infiles[i].preprocessed = true;
|
||
if (!have_o_argbuf_index)
|
||
fatal ("spec '%s' is invalid", input_file_compiler->spec);
|
||
infiles[i].name = argbuf[have_o_argbuf_index];
|
||
infiles[i].incompiler
|
||
= lookup_compiler (infiles[i].name,
|
||
strlen (infiles[i].name),
|
||
infiles[i].language);
|
||
|
||
if (value < 0)
|
||
this_file_error = 1;
|
||
}
|
||
}
|
||
|
||
if (this_file_error)
|
||
{
|
||
delete_failure_queue ();
|
||
error_count++;
|
||
break;
|
||
}
|
||
clear_failure_queue ();
|
||
}
|
||
combine_inputs = save_combine_inputs;
|
||
}
|
||
|
||
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] = input_filename;
|
||
|
||
/* Figure out which compiler from the file's suffix. */
|
||
|
||
if (! combine_inputs)
|
||
input_file_compiler
|
||
= lookup_compiler (infiles[i].name, input_filename_length,
|
||
infiles[i].language);
|
||
else
|
||
input_file_compiler = infiles[i].incompiler;
|
||
|
||
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",
|
||
input_filename, &input_file_compiler->spec[1]);
|
||
this_file_error = 1;
|
||
}
|
||
else
|
||
{
|
||
value = do_spec (input_file_compiler->spec);
|
||
infiles[i].compiled = true;
|
||
if (value < 0)
|
||
this_file_error = 1;
|
||
}
|
||
}
|
||
|
||
/* If this file's name does not contain a recognized suffix,
|
||
record it as explicit linker input. */
|
||
|
||
else
|
||
explicit_link_files[i] = 1;
|
||
|
||
/* Clear the delete-on-failure queue, deleting the files in it
|
||
if this compilation failed. */
|
||
|
||
if (this_file_error)
|
||
{
|
||
delete_failure_queue ();
|
||
error_count++;
|
||
}
|
||
/* If this compilation succeeded, don't delete those files later. */
|
||
clear_failure_queue ();
|
||
}
|
||
|
||
/* 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].language && infiles[i].language[0] != '*')
|
||
{
|
||
set_input (infiles[i].name);
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (error_count == 0)
|
||
{
|
||
/* Make sure INPUT_FILE_NUMBER points to first available open
|
||
slot. */
|
||
input_file_number = n_infiles;
|
||
if (lang_specific_pre_link ())
|
||
error_count++;
|
||
}
|
||
|
||
/* 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 && error_count == 0 && print_subprocess_help < 2)
|
||
{
|
||
int tmp = execution_count;
|
||
|
||
/* We'll use ld if we can't find collect2. */
|
||
if (! strcmp (linker_name_spec, "collect2"))
|
||
{
|
||
char *s = find_a_file (&exec_prefixes, "collect2", X_OK, false);
|
||
if (s == NULL)
|
||
linker_name_spec = "ld";
|
||
}
|
||
/* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
|
||
for collect. */
|
||
putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH", false);
|
||
putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV, true);
|
||
|
||
if (print_subprocess_help == 1)
|
||
{
|
||
printf (_("\nLinker options\n==============\n\n"));
|
||
printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
|
||
" to the linker.\n\n"));
|
||
fflush (stdout);
|
||
}
|
||
value = do_spec (link_command_spec);
|
||
if (value < 0)
|
||
error_count = 1;
|
||
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 && error_count == 0)
|
||
for (i = 0; (int) i < n_infiles; i++)
|
||
if (explicit_link_files[i]
|
||
&& !(infiles[i].language && infiles[i].language[0] == '*'))
|
||
error ("%s: linker input file unused because linking not done",
|
||
outfiles[i]);
|
||
|
||
/* Delete some or all of the temporary files we made. */
|
||
|
||
if (error_count)
|
||
delete_failure_queue ();
|
||
delete_temp_files ();
|
||
|
||
if (print_help_list)
|
||
{
|
||
printf (("\nFor bug reporting instructions, please see:\n"));
|
||
printf ("%s\n", bug_report_url);
|
||
}
|
||
|
||
return (signal_count != 0 ? 2
|
||
: error_count > 0 ? (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: %s", name, xstrerror (errno));
|
||
}
|
||
|
||
/* Output an error message and exit. */
|
||
|
||
void
|
||
fancy_abort (const char *file, int line, const char *func)
|
||
{
|
||
fatal_ice ("internal gcc abort in %s, at %s:%d", func, file, line);
|
||
}
|
||
|
||
/* Output an error message and exit. */
|
||
|
||
void
|
||
fatal_ice (const char *cmsgid, ...)
|
||
{
|
||
va_list ap;
|
||
|
||
va_start (ap, cmsgid);
|
||
|
||
fprintf (stderr, "%s: ", programname);
|
||
vfprintf (stderr, _(cmsgid), ap);
|
||
va_end (ap);
|
||
fprintf (stderr, "\n");
|
||
delete_temp_files ();
|
||
exit (pass_exit_codes ? ICE_EXIT_CODE : 1);
|
||
}
|
||
|
||
void
|
||
fatal (const char *cmsgid, ...)
|
||
{
|
||
va_list ap;
|
||
|
||
va_start (ap, cmsgid);
|
||
|
||
fprintf (stderr, "%s: ", programname);
|
||
vfprintf (stderr, _(cmsgid), ap);
|
||
va_end (ap);
|
||
fprintf (stderr, "\n");
|
||
delete_temp_files ();
|
||
exit (1);
|
||
}
|
||
|
||
/* The argument is actually c-format, not gcc-internal-format,
|
||
but because functions with identical names are used through
|
||
the rest of the compiler with gcc-internal-format, we just
|
||
need to hope all users of these functions use the common
|
||
subset between c-format and gcc-internal-format. */
|
||
|
||
void
|
||
error (const char *gmsgid, ...)
|
||
{
|
||
va_list ap;
|
||
|
||
va_start (ap, gmsgid);
|
||
fprintf (stderr, "%s: ", programname);
|
||
vfprintf (stderr, _(gmsgid), ap);
|
||
va_end (ap);
|
||
|
||
fprintf (stderr, "\n");
|
||
}
|
||
|
||
static void
|
||
notice (const char *cmsgid, ...)
|
||
{
|
||
va_list ap;
|
||
|
||
va_start (ap, cmsgid);
|
||
vfprintf (stderr, _(cmsgid), ap);
|
||
va_end (ap);
|
||
}
|
||
|
||
static inline void
|
||
validate_switches_from_spec (const char *spec)
|
||
{
|
||
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);
|
||
}
|
||
|
||
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);
|
||
|
||
/* 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);
|
||
|
||
validate_switches_from_spec (link_command_spec);
|
||
}
|
||
|
||
/* 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)
|
||
{
|
||
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].validated = 1;
|
||
}
|
||
|
||
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);
|
||
else if (p[0] == 'W' && p[1] == '{')
|
||
p = validate_switches (p+2);
|
||
}
|
||
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 ("multilib spec '%s' 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. */
|
||
|
||
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 ("multilib exclusions '%s' 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;
|
||
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 ("multilib select '%s' is invalid",
|
||
multilib_select);
|
||
}
|
||
++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)
|
||
{
|
||
char *new_multilib_os_dir = XNEWVEC (char, end - q);
|
||
memcpy (new_multilib_os_dir, q + 1, end - q - 1);
|
||
new_multilib_os_dir[end - q - 1] = '\0';
|
||
multilib_os_dir = new_multilib_os_dir;
|
||
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 ("multilib select '%s' is invalid", multilib_select);
|
||
}
|
||
|
||
++p;
|
||
}
|
||
|
||
/* When --disable-multilib was used but target defines
|
||
MULTILIB_OSDIRNAMES, entries starting with .: are there just
|
||
to find multilib_os_dir, so skip them from output. */
|
||
if (this_path[0] == '.' && this_path[1] == ':')
|
||
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 ("multilib exclusion '%s' 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
|
||
&& ! strncmp (last_path, this_path, last_path_len));
|
||
|
||
last_path = this_path;
|
||
last_path_len = p - this_path;
|
||
}
|
||
|
||
/* If this directory requires any default arguments, we can skip
|
||
it. We will already have printed a directory identical to
|
||
this one which does not require that default argument. */
|
||
if (! skip)
|
||
{
|
||
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 ("environment variable \"%s\" 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];
|
||
}
|
||
|
||
/* 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] && !strcmp (outfiles[i], argv[0]))
|
||
outfiles[i] = xstrdup (argv[1]);
|
||
}
|
||
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 ("invalid version number `%s'", v1);
|
||
else if (rresult != 0)
|
||
abort ();
|
||
rresult = regexec (&r, v2, 0, NULL, 0);
|
||
if (rresult == REG_NOMATCH)
|
||
fatal ("invalid version number `%s'", 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 ("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 ("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 ("unknown operator '%s' in %%:version-compare", argv[0]);
|
||
}
|
||
if (! result)
|
||
return NULL;
|
||
|
||
return argv[nargs + 2];
|
||
}
|
||
|
||
/* %:include builtin spec function. This differs from %include in that it
|
||
can be nested inside a spec, and thus be conditionalized. It takes
|
||
one argument, the filename, and looks for it in the startfile path.
|
||
The result is always NULL, i.e. an empty expansion. */
|
||
|
||
static const char *
|
||
include_spec_function (int argc, const char **argv)
|
||
{
|
||
char *file;
|
||
|
||
if (argc != 1)
|
||
abort ();
|
||
|
||
file = find_a_file (&startfile_prefixes, argv[0], R_OK, true);
|
||
read_specs (file ? file : argv[0], FALSE);
|
||
|
||
return NULL;
|
||
}
|
||
|
||
/* %:print-asm-header spec function. Print a banner to say that the
|
||
following output is from the assembler. */
|
||
|
||
static const char *
|
||
print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED,
|
||
const char **argv ATTRIBUTE_UNUSED)
|
||
{
|
||
printf (_("Assembler options\n=================\n\n"));
|
||
printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
|
||
fflush (stdout);
|
||
return NULL;
|
||
}
|