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a8a3b181ed
1.\{2,15\} FREEBSD_NATIVE
1.\{5,13\} ELF, and objformat support
1.\{16,23,25\} Better cross building control
1.21 'GCC_OPTIONS'
1.27 cross-arch MD_EXEC_PREFIX fixes
cc -print-search-dir fixes
1.28 Read specs from /usr/libdata/gcc/specs,
if available
Approved by: obrien
7106 lines
194 KiB
C
7106 lines
194 KiB
C
/* Compiler driver program that can handle many languages.
|
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Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
|
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1999, 2000, 2001, 2002 Free Software Foundation, Inc.
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|
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This file is part of GCC.
|
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|
||
GCC is free software; you can redistribute it and/or modify it under
|
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the terms of the GNU General Public License as published by the Free
|
||
Software Foundation; either version 2, or (at your option) any later
|
||
version.
|
||
|
||
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 COPYING. If not, write to the Free
|
||
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
|
||
02111-1307, USA.
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||
|
||
This paragraph is here to try to keep Sun CC from dying.
|
||
The number of chars here seems crucial!!!! */
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/* $FreeBSD$ */
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|
||
/* 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". */
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||
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||
/* 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.
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||
|
||
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'.
|
||
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||
4. If the argument takes an argument, e.g., `--baz argument1',
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||
modify either DEFAULT_SWITCH_TAKES_ARG or
|
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DEFAULT_WORD_SWITCH_TAKES_ARG in this file. Omit the first `-'
|
||
from `--baz'.
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5. Document the option in this file's display_help(). If the
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||
option is passed to a subprogram, modify its corresponding
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function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
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instead.
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6. Compile and test. Make sure that your new specs file is being
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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 <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 "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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||
|
||
#ifdef HAVE_SYS_RESOURCE_H
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||
#include <sys/resource.h>
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||
#endif
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||
#if defined (HAVE_DECL_GETRUSAGE) && !HAVE_DECL_GETRUSAGE
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||
extern int getrusage PARAMS ((int, struct rusage *));
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||
#endif
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||
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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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#else
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#undef TARGET_EXECUTABLE_SUFFIX
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#define 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. */
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||
#ifdef HOST_EXECUTABLE_SUFFIX
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||
#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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||
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||
/* By default, the suffix for target object files is ".o". */
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||
#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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||
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||
#ifndef VMS
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||
/* FIXME: the location independence code for VMS is hairier than this,
|
||
and hasn't been written. */
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||
#ifndef DIR_UP
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#define DIR_UP ".."
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||
#endif /* DIR_UP */
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||
#endif /* VMS */
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||
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||
static const char dir_separator_str[] = { DIR_SEPARATOR, 0 };
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||
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||
#define obstack_chunk_alloc xmalloc
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||
#define obstack_chunk_free free
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||
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||
#ifndef GET_ENV_PATH_LIST
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||
#define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
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||
#endif
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||
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||
/* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
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||
#ifndef LIBRARY_PATH_ENV
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||
#define LIBRARY_PATH_ENV "LIBRARY_PATH"
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||
#endif
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||
|
||
#ifndef HAVE_KILL
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||
#define kill(p,s) raise(s)
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||
#endif
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||
|
||
/* If a stage of compilation returns an exit status >= 1,
|
||
compilation of that file ceases. */
|
||
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||
#define MIN_FATAL_STATUS 1
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||
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||
/* Flag set by cppspec.c to 1. */
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||
int is_cpp_driver;
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||
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||
/* Flag saying to pass the greatest exit code returned by a sub-process
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||
to the calling program. */
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||
static int pass_exit_codes;
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||
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||
/* Definition of string containing the arguments given to configure. */
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||
#include "configargs.h"
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||
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||
/* Flag saying to print the directories gcc will search through looking for
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||
programs, libraries, etc. */
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||
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static int print_search_dirs;
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/* Flag saying to print the full filename of this file
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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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||
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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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||
/* 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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||
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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||
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static int print_help_list;
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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
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||
line is suitable for execution. This is intended for use in
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||
shell scripts to capture the driver-generated command line. */
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||
static int verbose_only_flag;
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||
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/* Flag indicating to print target specific command line options. */
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||
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||
static int target_help_flag;
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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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/* 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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/* 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 *spec_version = DEFAULT_TARGET_VERSION;
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/* The target machine specified with -b. */
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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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#ifdef CROSS_COMPILE
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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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||
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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
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||
string to or from the end of the first part of the configuration name. */
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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 non-zero. */
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static int error_count = 0;
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||
/* Greatest exit code of sub-processes that has been encountered up to
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now. */
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static int greatest_status = 1;
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/* This is the obstack which we use to allocate many strings. */
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||
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||
static struct obstack obstack;
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||
/* This is the obstack to build an environment variable to pass to
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||
collect2 that describes all of the relevant switches of what to
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||
pass the compiler in building the list of pointers to constructors
|
||
and destructors. */
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||
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||
static struct obstack collect_obstack;
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||
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||
/* These structs are used to collect resource usage information for
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||
subprocesses. */
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||
#ifdef HAVE_GETRUSAGE
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||
static struct rusage rus, prus;
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||
#endif
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||
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||
/* Forward declaration for prototypes. */
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||
struct path_prefix;
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||
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||
static void init_spec PARAMS ((void));
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||
#ifndef VMS
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||
static char **split_directories PARAMS ((const char *, int *));
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||
static void free_split_directories PARAMS ((char **));
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||
static char *make_relative_prefix PARAMS ((const char *, const char *, const char *));
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||
#endif /* VMS */
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||
static void store_arg PARAMS ((const char *, int, int));
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||
static char *load_specs PARAMS ((const char *));
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static void read_specs PARAMS ((const char *, int));
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||
static void set_spec PARAMS ((const char *, const char *));
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||
static struct compiler *lookup_compiler PARAMS ((const char *, size_t, const char *));
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static char *build_search_list PARAMS ((struct path_prefix *, const char *, int));
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||
static void putenv_from_prefixes PARAMS ((struct path_prefix *, const char *));
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static int access_check PARAMS ((const char *, int));
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static char *find_a_file PARAMS ((struct path_prefix *, const char *, int));
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||
static void add_prefix PARAMS ((struct path_prefix *, const char *,
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||
const char *, int, int, int *));
|
||
static void translate_options PARAMS ((int *, const char *const **));
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||
static char *skip_whitespace PARAMS ((char *));
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||
static void delete_if_ordinary PARAMS ((const char *));
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||
static void delete_temp_files PARAMS ((void));
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||
static void delete_failure_queue PARAMS ((void));
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||
static void clear_failure_queue PARAMS ((void));
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||
static int check_live_switch PARAMS ((int, int));
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||
static const char *handle_braces PARAMS ((const char *));
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||
static char *save_string PARAMS ((const char *, int));
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||
static void set_collect_gcc_options PARAMS ((void));
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||
static int do_spec_1 PARAMS ((const char *, int, const char *));
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||
static const char *find_file PARAMS ((const char *));
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||
static int is_directory PARAMS ((const char *, const char *, int));
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||
static void validate_switches PARAMS ((const char *));
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static void validate_all_switches PARAMS ((void));
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||
static void give_switch PARAMS ((int, int, int));
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||
static int used_arg PARAMS ((const char *, int));
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||
static int default_arg PARAMS ((const char *, int));
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||
static void set_multilib_dir PARAMS ((void));
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||
static void print_multilib_info PARAMS ((void));
|
||
static void perror_with_name PARAMS ((const char *));
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||
static void pfatal_pexecute PARAMS ((const char *, const char *))
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||
ATTRIBUTE_NORETURN;
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||
static void notice PARAMS ((const char *, ...))
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||
ATTRIBUTE_PRINTF_1;
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||
static void display_help PARAMS ((void));
|
||
static void add_preprocessor_option PARAMS ((const char *, int));
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||
static void add_assembler_option PARAMS ((const char *, int));
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||
static void add_linker_option PARAMS ((const char *, int));
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||
static void process_command PARAMS ((int, const char *const *));
|
||
static int execute PARAMS ((void));
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||
static void clear_args PARAMS ((void));
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||
static void fatal_error PARAMS ((int));
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||
#ifdef ENABLE_SHARED_LIBGCC
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static void init_gcc_specs PARAMS ((struct obstack *,
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const char *, const char *,
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const char *));
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||
#endif
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#if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
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static const char *convert_filename PARAMS ((const char *, int, int));
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||
#endif
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||
/* The Specs Language
|
||
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Specs are strings containing lines, each of which (if not blank)
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is made up of a program name, and arguments separated by spaces.
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The program name must be exact and start from root, since no path
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||
is searched and it is unreliable to depend on the current working directory.
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||
Redirection of input or output is not supported; the subprograms must
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accept filenames saying what files to read and write.
|
||
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||
In addition, the specs can contain %-sequences to substitute variable text
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||
or for conditional text. Here is a table of all defined %-sequences.
|
||
Note that spaces are not generated automatically around the results of
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expanding these sequences; therefore, you can concatenate them together
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||
or with constant text in a single argument.
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||
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||
%% substitute one % into the program name or argument.
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%i substitute the name of the input file being processed.
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||
%b substitute the basename of the input file being processed.
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||
This is the substring up to (and not including) the last period
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||
and not including the directory.
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%B same as %b, but include the file suffix (text after the last period).
|
||
%gSUFFIX
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substitute a file name that has suffix SUFFIX and is chosen
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||
once per compilation, and mark the argument a la %d. To reduce
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||
exposure to denial-of-service attacks, the file name is now
|
||
chosen in a way that is hard to predict even when previously
|
||
chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
|
||
might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
|
||
the regexp "[.A-Za-z]*%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.
|
||
%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.
|
||
%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'.
|
||
%p substitutes the standard macro predefinitions for the
|
||
current target machine. Use this when running cpp.
|
||
%P like %p, but puts `__' before and after the name of each macro.
|
||
(Except macros that already have __.)
|
||
This is for ANSI C.
|
||
%I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
|
||
%s current argument is the name of a library or startup file of some sort.
|
||
Search for that file in a standard list of directories
|
||
and substitute the full name found.
|
||
%eSTR Print STR as an error message. STR is terminated by a newline.
|
||
Use this when inconsistent options are detected.
|
||
%nSTR Print STR as an 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.
|
||
%v1 Substitute the major version number of GCC.
|
||
(For version 2.5.3, this is 2.)
|
||
%v2 Substitute the minor version number of GCC.
|
||
(For version 2.5.3, this is 5.)
|
||
%v3 Substitute the patch level number of GCC.
|
||
(For version 2.5.3, this is 3.)
|
||
%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.
|
||
%M output multilib_dir with directory separators replaced with "_";
|
||
if multilib_dir is not set or is ".", output "".
|
||
%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.
|
||
%| output "-" if the input for the current command is coming from a pipe.
|
||
%* substitute the variable part of a matched option. (See below.)
|
||
Note that each comma in the substituted string is replaced by
|
||
a single space.
|
||
%{S} substitutes the -S switch, if that switch was given to CC.
|
||
If that switch was not specified, this substitutes nothing.
|
||
Here S is a metasyntactic variable.
|
||
%{S*} substitutes all the switches specified to CC whose names start
|
||
with -S. This is used for -o, -I, etc; switches that take
|
||
arguments. CC considers `-o foo' as being one switch whose
|
||
name starts with `o'. %{o*} would substitute this text,
|
||
including the space; thus, two arguments would be generated.
|
||
%{^S*} likewise, but don't put a blank between a switch and any args.
|
||
%{S*&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 one or more switches whose names start with -S are
|
||
specified to CC. Note that the tail part of the -S option
|
||
(i.e. the part matched by the `*') will be substituted for each
|
||
occurrence of %* within X.
|
||
%{<S} remove all occurrences of -S from the command line.
|
||
Note - this option is position dependent. % commands in the
|
||
spec string before this option will see -S, % commands in the
|
||
spec string after this option will not.
|
||
%{S:X} substitutes X, but only if the -S switch was given to CC.
|
||
%{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
|
||
%{|S:X} like %{S:X}, but if no S switch, substitute `-'.
|
||
%{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
|
||
%{.S:X} substitutes X, but only if processing a file with suffix S.
|
||
%{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
|
||
%{S|P:X} substitutes X if either -S or -P was given to CC. This may be
|
||
combined with ! and . as above binding stronger than the OR.
|
||
%(Spec) processes a specification defined in a specs file as *Spec:
|
||
%[Spec] as above, but put __ around -D arguments
|
||
|
||
The conditional text X in a %{S:X} or %{!S:X} construct may contain
|
||
other nested % constructs or spaces, or even newlines. They are
|
||
processed as usual, as described above.
|
||
|
||
The -O, -f, -m, and -W switches are handled specifically in these
|
||
constructs. If another value of -O or the negated form of a -f, -m, or
|
||
-W switch is found later in the command line, the earlier switch
|
||
value is ignored, except with {S*} where S is just one letter; this
|
||
passes all matching options.
|
||
|
||
The character | at the beginning of the predicate text is used to indicate
|
||
that a command should be piped to the following command, but only if -pipe
|
||
is specified.
|
||
|
||
Note that it is built into CC which switches take arguments and which
|
||
do not. You might think it would be useful to generalize this to
|
||
allow each compiler's spec to say which switches take arguments. But
|
||
this cannot be done in a consistent fashion. CC cannot even decide
|
||
which input files have been specified without knowing which switches
|
||
take arguments, and it must know which input files to compile in order
|
||
to tell which compilers to run.
|
||
|
||
CC also knows implicitly that arguments starting in `-l' are to be
|
||
treated as compiler output files, and passed to the linker in their
|
||
proper position among the other output files. */
|
||
|
||
/* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
|
||
|
||
/* config.h can define ASM_SPEC to provide extra args to the assembler
|
||
or extra switch-translations. */
|
||
#ifndef ASM_SPEC
|
||
#define ASM_SPEC ""
|
||
#endif
|
||
|
||
/* config.h can define ASM_FINAL_SPEC to run a post processor after
|
||
the assembler has run. */
|
||
#ifndef ASM_FINAL_SPEC
|
||
#define ASM_FINAL_SPEC ""
|
||
#endif
|
||
|
||
/* config.h can define CPP_SPEC to provide extra args to the C preprocessor
|
||
or extra switch-translations. */
|
||
#ifndef CPP_SPEC
|
||
#define CPP_SPEC ""
|
||
#endif
|
||
|
||
/* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
|
||
or extra switch-translations. */
|
||
#ifndef CC1_SPEC
|
||
#define CC1_SPEC ""
|
||
#endif
|
||
|
||
/* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
|
||
or extra switch-translations. */
|
||
#ifndef CC1PLUS_SPEC
|
||
#define CC1PLUS_SPEC ""
|
||
#endif
|
||
|
||
/* config.h can define LINK_SPEC to provide extra args to the linker
|
||
or extra switch-translations. */
|
||
#ifndef LINK_SPEC
|
||
#define LINK_SPEC ""
|
||
#endif
|
||
|
||
/* config.h can define LIB_SPEC to override the default libraries. */
|
||
#ifndef LIB_SPEC
|
||
#define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
|
||
#endif
|
||
|
||
/* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
|
||
included. */
|
||
#ifndef LIBGCC_SPEC
|
||
#if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
|
||
/* Have gcc do the search for libgcc.a. */
|
||
#define LIBGCC_SPEC "libgcc.a%s"
|
||
#else
|
||
#define LIBGCC_SPEC "-lgcc"
|
||
#endif
|
||
#endif
|
||
|
||
/* config.h can define STARTFILE_SPEC to override the default crt0 files. */
|
||
#ifndef STARTFILE_SPEC
|
||
#define STARTFILE_SPEC \
|
||
"%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
|
||
#endif
|
||
|
||
/* config.h can define SWITCHES_NEED_SPACES to control which options
|
||
require spaces between the option and the argument. */
|
||
#ifndef SWITCHES_NEED_SPACES
|
||
#define SWITCHES_NEED_SPACES ""
|
||
#endif
|
||
|
||
/* config.h can define ENDFILE_SPEC to override the default crtn files. */
|
||
#ifndef ENDFILE_SPEC
|
||
#define ENDFILE_SPEC ""
|
||
#endif
|
||
|
||
#ifndef LINKER_NAME
|
||
#define LINKER_NAME "collect2"
|
||
#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 \
|
||
? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
|
||
: "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
|
||
# else
|
||
# if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
|
||
# define ASM_DEBUG_SPEC "%{g*:--gstabs}"
|
||
# endif
|
||
# if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
|
||
# define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
|
||
# 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
|
||
|
||
/* -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 %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
|
||
%{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
|
||
%{static:} %{L*} %(link_libgcc) %o %{!nostdlib:%{!nodefaultlibs:%(link_gcc_c_sequence)}}\
|
||
%{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
|
||
#endif
|
||
|
||
#ifndef LINK_LIBGCC_SPEC
|
||
# ifdef LINK_LIBGCC_SPECIAL
|
||
/* Don't generate -L options for startfile prefix list. */
|
||
# define LINK_LIBGCC_SPEC ""
|
||
# else
|
||
/* Do generate them. */
|
||
# define LINK_LIBGCC_SPEC "%D"
|
||
# endif
|
||
#endif
|
||
|
||
static const char *asm_debug = ASM_DEBUG_SPEC;
|
||
static const char *cpp_spec = CPP_SPEC;
|
||
static const char *cpp_predefines = CPP_PREDEFINES;
|
||
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 *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 *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;
|
||
|
||
/* 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. */
|
||
|
||
static const char *trad_capable_cpp =
|
||
"%{traditional|ftraditional|traditional-cpp:trad}cpp0";
|
||
|
||
static const char *cpp_unique_options =
|
||
"%{C:%{!E:%eGNU C does not support -C without using -E}}\
|
||
%{nostdinc*} %{C} %{v} %{I*} %{P} %{$} %I\
|
||
%{MD:-MD %W{!o: %b.d}%W{o*:%.d%*}}\
|
||
%{MMD:-MMD %W{!o: %b.d}%W{o*:%.d%*}}\
|
||
%{M} %{MM} %W{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
|
||
%{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\
|
||
%{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3 -D__GXX_ABI_VERSION=102}\
|
||
%{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
|
||
%{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
|
||
%{fno-inline|O0|!O*:-D__NO_INLINE__} %{ffast-math:-D__FAST_MATH__}\
|
||
%{fshort-wchar:-U__WCHAR_TYPE__ -D__WCHAR_TYPE__=short\\ unsigned\\ int}\
|
||
%{ffreestanding:-D__STDC_HOSTED__=0} %{fno-hosted:-D__STDC_HOSTED__=0}\
|
||
%{!ffreestanding:%{!fno-hosted:-D__STDC_HOSTED__=1}} %{remap}\
|
||
%{g3:-dD} %{H} %C %{D*&U*&A*} %{i*} %Z %i\
|
||
%{E|M|MM:%W{o*}}";
|
||
|
||
/* This contains cpp options which are common with cc1_options and are passed
|
||
only when preprocessing only to avoid duplication. */
|
||
static const char *cpp_options =
|
||
"%(cpp_unique_options) %{std*} %{d*} %{W*} %{w} %{pedantic*}\
|
||
%{fshow-column} %{fno-show-column}\
|
||
%{fsigned-char&funsigned-char}\
|
||
%{fleading-underscore} %{fno-leading-underscore}\
|
||
%{fno-operator-names} %{ftabstop=*}";
|
||
|
||
/* NB: This is shared amongst all front-ends. */
|
||
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*}\
|
||
%{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*} %{ansi}\
|
||
%{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
|
||
%{Qn:-fno-ident} %{--help:--help}\
|
||
%{--target-help:--target-help}\
|
||
%{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
|
||
%{fsyntax-only:-o %j} %{-param*}";
|
||
|
||
static const char *asm_options =
|
||
"%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
|
||
|
||
static const char *invoke_as =
|
||
"%{!S:-o %{|!pipe:%g.s} |\n as %(asm_options) %{!pipe:%g.s} %A }";
|
||
|
||
/* 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;
|
||
#include "multilib.h"
|
||
|
||
/* 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;
|
||
|
||
struct user_specs
|
||
{
|
||
struct user_specs *next;
|
||
const char *filename;
|
||
};
|
||
|
||
static struct user_specs *user_specs_head, *user_specs_tail;
|
||
|
||
/* This defines which switch letters take arguments. */
|
||
|
||
#define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
|
||
((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
|
||
|| (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
|
||
|| (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
|
||
|| (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
|
||
|| (CHAR) == 'B' || (CHAR) == 'b')
|
||
|
||
#ifndef SWITCH_TAKES_ARG
|
||
#define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
|
||
#endif
|
||
|
||
/* This defines which multi-letter switches take arguments. */
|
||
|
||
#define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
|
||
(!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
|
||
|| !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
|
||
|| !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
|
||
|| !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
|
||
|| !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
|
||
|| !strcmp (STR, "isystem") || !strcmp (STR, "-param") \
|
||
|| !strcmp (STR, "specs") \
|
||
|| !strcmp (STR, "MF") || !strcmp (STR, "MT") || !strcmp (STR, "MQ"))
|
||
|
||
#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. */
|
||
};
|
||
|
||
/* 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}, {".mi", "#Objective-C", 0},
|
||
{".cc", "#C++", 0}, {".cxx", "#C++", 0}, {".cpp", "#C++", 0},
|
||
{".cp", "#C++", 0}, {".c++", "#C++", 0}, {".C", "#C++", 0},
|
||
{".ii", "#C++", 0},
|
||
{".ads", "#Ada", 0}, {".adb", "#Ada", 0},
|
||
{".f", "#Fortran", 0}, {".for", "#Fortran", 0}, {".fpp", "#Fortran", 0},
|
||
{".F", "#Fortran", 0}, {".FOR", "#Fortran", 0}, {".FPP", "#Fortran", 0},
|
||
{".r", "#Ratfor", 0},
|
||
{".p", "#Pascal", 0}, {".pas", "#Pascal", 0},
|
||
{".java", "#Java", 0}, {".class", "#Java", 0},
|
||
{".zip", "#Java", 0}, {".jar", "#Java", 0},
|
||
/* Next come the entries for C. */
|
||
{".c", "@c", 0},
|
||
{"@c",
|
||
/* cc1 has an integrated ISO C preprocessor. We should invoke the
|
||
external preprocessor if -save-temps or -traditional is given. */
|
||
"%{E|M|MM:%(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)}\
|
||
%{!E:%{!M:%{!MM:\
|
||
%{save-temps|no-integrated-cpp:%(trad_capable_cpp) -lang-c %{ansi:-std=c89}\
|
||
%(cpp_options) %{save-temps:%b.i} %{!save-temps:%g.i} \n\
|
||
cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} %(cc1_options)}\
|
||
%{!save-temps:%{!no-integrated-cpp:\
|
||
%{traditional|ftraditional|traditional-cpp:\
|
||
tradcpp0 -lang-c %{ansi:-std=c89} %(cpp_options) %{!pipe:%g.i} |\n\
|
||
cc1 -fpreprocessed %{!pipe:%g.i} %(cc1_options)}\
|
||
%{!traditional:%{!ftraditional:%{!traditional-cpp:\
|
||
cc1 -lang-c %{ansi:-std=c89} %(cpp_unique_options) %(cc1_options)}}}}}\
|
||
%{!fsyntax-only:%(invoke_as)}}}}", 0},
|
||
{"-",
|
||
"%{!E:%e-E required when input is from standard input}\
|
||
%(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)", 0},
|
||
{".h", "@c-header", 0},
|
||
{"@c-header",
|
||
"%{!E:%ecompilation of header file requested} \
|
||
%(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)", 0},
|
||
{".i", "@cpp-output", 0},
|
||
{"@cpp-output",
|
||
"%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0},
|
||
{".s", "@assembler", 0},
|
||
{"@assembler",
|
||
"%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0},
|
||
{".S", "@assembler-with-cpp", 0},
|
||
{"@assembler-with-cpp",
|
||
"%(trad_capable_cpp) -lang-asm %(cpp_options)\
|
||
%{!M:%{!MM:%{!E:%{!S:-o %{|!pipe:%g.s} |\n\
|
||
as %(asm_debug) %(asm_options) %{!pipe:%g.s} %A }}}}", 0},
|
||
#include "specs.h"
|
||
/* Mark end of table */
|
||
{0, 0, 0}
|
||
};
|
||
|
||
/* Number of elements in default_compilers, not counting the terminator. */
|
||
|
||
static int n_default_compilers
|
||
= (sizeof default_compilers / sizeof (struct compiler)) - 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"},
|
||
{"--comments", "-C", 0},
|
||
{"--compile", "-c", 0},
|
||
{"--debug", "-g", "oj"},
|
||
{"--define-macro", "-D", "aj"},
|
||
{"--dependencies", "-M", 0},
|
||
{"--dump", "-d", "a"},
|
||
{"--dumpbase", "-dumpbase", "a"},
|
||
{"--entry", "-e", 0},
|
||
{"--extra-warnings", "-W", 0},
|
||
{"--for-assembler", "-Wa", "a"},
|
||
{"--for-linker", "-Xlinker", "a"},
|
||
{"--force-link", "-u", "a"},
|
||
{"--imacros", "-imacros", "a"},
|
||
{"--include", "-include", "a"},
|
||
{"--include-barrier", "-I-", 0},
|
||
{"--include-directory", "-I", "aj"},
|
||
{"--include-directory-after", "-idirafter", "a"},
|
||
{"--include-prefix", "-iprefix", "a"},
|
||
{"--include-with-prefix", "-iwithprefix", "a"},
|
||
{"--include-with-prefix-before", "-iwithprefixbefore", "a"},
|
||
{"--include-with-prefix-after", "-iwithprefix", "a"},
|
||
{"--language", "-x", "a"},
|
||
{"--library-directory", "-L", "a"},
|
||
{"--machine", "-m", "aj"},
|
||
{"--machine-", "-m", "*j"},
|
||
{"--no-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"},
|
||
{"--pedantic", "-pedantic", 0},
|
||
{"--pedantic-errors", "-pedantic-errors", 0},
|
||
{"--pipe", "-pipe", 0},
|
||
{"--prefix", "-B", "a"},
|
||
{"--preprocess", "-E", 0},
|
||
{"--print-search-dirs", "-print-search-dirs", 0},
|
||
{"--print-file-name", "-print-file-name=", "aj"},
|
||
{"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
|
||
{"--print-missing-file-dependencies", "-MG", 0},
|
||
{"--print-multi-lib", "-print-multi-lib", 0},
|
||
{"--print-multi-directory", "-print-multi-directory", 0},
|
||
{"--print-prog-name", "-print-prog-name=", "aj"},
|
||
{"--profile", "-p", 0},
|
||
{"--profile-blocks", "-a", 0},
|
||
{"--quiet", "-q", 0},
|
||
{"--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},
|
||
{"--target", "-b", "a"},
|
||
{"--time", "-time", 0},
|
||
{"--trace-includes", "-H", 0},
|
||
{"--traditional", "-traditional", 0},
|
||
{"--traditional-cpp", "-traditional-cpp", 0},
|
||
{"--trigraphs", "-trigraphs", 0},
|
||
{"--undefine-macro", "-U", "aj"},
|
||
{"--use-version", "-V", "a"},
|
||
{"--user-dependencies", "-MM", 0},
|
||
{"--verbose", "-v", 0},
|
||
{"--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 *ARGVC. */
|
||
|
||
static void
|
||
translate_options (argcp, argvp)
|
||
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 =
|
||
(const char **) xmalloc (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 = (const char **) xrealloc (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 == 'V' || c == 'x')
|
||
&& p[1] == 0)
|
||
nskip += 1;
|
||
else if (! strcmp (p, "Xlinker"))
|
||
nskip += 1;
|
||
|
||
/* Watch out for an option at the end of the command line that
|
||
is missing arguments, and avoid skipping past the end of the
|
||
command line. */
|
||
if (nskip + i > argc)
|
||
nskip = argc - i;
|
||
|
||
while (nskip > 0)
|
||
{
|
||
newv[newindex++] = argv[i++];
|
||
nskip--;
|
||
}
|
||
}
|
||
else
|
||
/* Ordinary operands, or +e options. */
|
||
newv[newindex++] = argv[i++];
|
||
}
|
||
|
||
newv[newindex] = 0;
|
||
|
||
*argvp = newv;
|
||
*argcp = newindex;
|
||
}
|
||
|
||
static char *
|
||
skip_whitespace (p)
|
||
char *p;
|
||
{
|
||
while (1)
|
||
{
|
||
/* A fully-blank line is a delimiter in the SPEC file and shouldn't
|
||
be considered whitespace. */
|
||
if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
|
||
return p + 1;
|
||
else if (*p == '\n' || *p == ' ' || *p == '\t')
|
||
p++;
|
||
else if (*p == '#')
|
||
{
|
||
while (*p != '\n')
|
||
p++;
|
||
p++;
|
||
}
|
||
else
|
||
break;
|
||
}
|
||
|
||
return p;
|
||
}
|
||
/* 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 *used_flag_ptr; /* 1 if a file was found with this prefix. */
|
||
int priority; /* Sort key - priority within list */
|
||
};
|
||
|
||
struct path_prefix
|
||
{
|
||
struct prefix_list *plist; /* List of prefixes to try */
|
||
int max_len; /* Max length of a prefix in PLIST */
|
||
const char *name; /* Name of this list (used in config stuff) */
|
||
};
|
||
|
||
/* List of prefixes to try when looking for executables. */
|
||
|
||
static struct path_prefix exec_prefixes = { 0, 0, "exec" };
|
||
|
||
/* List of prefixes to try when looking for startup (crt0) files. */
|
||
|
||
static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
|
||
|
||
/* List of prefixes to try when looking for include files. */
|
||
|
||
static struct path_prefix include_prefixes = { 0, 0, "include" };
|
||
|
||
/* Suffix to attach to directories searched for commands.
|
||
This looks like `MACHINE/VERSION/'. */
|
||
|
||
static const char *machine_suffix = 0;
|
||
|
||
/* Suffix to attach to directories searched for commands.
|
||
This is just `MACHINE/'. */
|
||
|
||
static const char *just_machine_suffix = 0;
|
||
|
||
/* Adjusted value of GCC_EXEC_PREFIX envvar. */
|
||
|
||
static const char *gcc_exec_prefix;
|
||
|
||
/* Default prefixes to attach to command names. */
|
||
|
||
#ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
|
||
#undef MD_EXEC_PREFIX
|
||
#undef MD_STARTFILE_PREFIX
|
||
#undef MD_STARTFILE_PREFIX_1
|
||
#endif
|
||
|
||
/* 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
|
||
|
||
/* Supply defaults for the standard prefixes. */
|
||
|
||
#ifndef STANDARD_EXEC_PREFIX
|
||
#define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
|
||
#endif
|
||
#ifndef STANDARD_STARTFILE_PREFIX
|
||
#define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
|
||
#endif
|
||
#ifndef TOOLDIR_BASE_PREFIX
|
||
#define TOOLDIR_BASE_PREFIX "/usr/local/"
|
||
#endif
|
||
#ifndef FREEBSD_NATIVE
|
||
#ifndef STANDARD_BINDIR_PREFIX
|
||
#define STANDARD_BINDIR_PREFIX "/usr/local/bin"
|
||
#endif
|
||
#endif /* not FREEBSD_NATIVE */
|
||
|
||
static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX;
|
||
static const char *const standard_exec_prefix_1 = "/usr/lib/gcc/";
|
||
static const char *md_exec_prefix = MD_EXEC_PREFIX;
|
||
|
||
static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
|
||
static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
|
||
static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
|
||
static const char *const standard_startfile_prefix_1 = "/lib/";
|
||
static const char *const standard_startfile_prefix_2 = "/usr/lib/";
|
||
|
||
static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
|
||
static const char *tooldir_prefix;
|
||
|
||
#ifndef FREEBSD_NATIVE
|
||
static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
|
||
#endif /* not FREEBSD_NATIVE */
|
||
|
||
/* Subdirectory to use for locating libraries. Set by
|
||
set_multilib_dir based on the compilation options. */
|
||
|
||
static const char *multilib_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_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 ("endfile", &endfile_spec),
|
||
INIT_STATIC_SPEC ("link", &link_spec),
|
||
INIT_STATIC_SPEC ("lib", &lib_spec),
|
||
INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
|
||
INIT_STATIC_SPEC ("startfile", &startfile_spec),
|
||
INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
|
||
INIT_STATIC_SPEC ("predefines", &cpp_predefines),
|
||
INIT_STATIC_SPEC ("cross_compile", &cross_compile),
|
||
INIT_STATIC_SPEC ("version", &compiler_version),
|
||
INIT_STATIC_SPEC ("multilib", &multilib_select),
|
||
INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
|
||
INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
|
||
INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
|
||
INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
|
||
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),
|
||
};
|
||
|
||
#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;
|
||
|
||
/* Add appropriate libgcc specs to OBSTACK, taking into account
|
||
various permutations of -shared-libgcc, -shared, and such. */
|
||
|
||
#ifdef ENABLE_SHARED_LIBGCC
|
||
static void
|
||
init_gcc_specs (obstack, shared_name, static_name, eh_name)
|
||
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:",
|
||
"%{!shared:%{!shared-libgcc:", static_name, " ",
|
||
eh_name, "}%{shared-libgcc:", shared_name, " ",
|
||
static_name, "}}%{shared:",
|
||
#ifdef LINK_EH_SPEC
|
||
"%{shared-libgcc:", shared_name,
|
||
"}%{!shared-libgcc:", static_name, "}",
|
||
#else
|
||
shared_name,
|
||
#endif
|
||
"}}}", NULL);
|
||
|
||
obstack_grow (obstack, buf, strlen (buf));
|
||
free (buf);
|
||
}
|
||
#endif /* ENABLE_SHARED_LIBGCC */
|
||
|
||
/* Initialize the specs lookup routines. */
|
||
|
||
static void
|
||
init_spec ()
|
||
{
|
||
struct spec_list *next = (struct spec_list *) 0;
|
||
struct spec_list *sl = (struct spec_list *) 0;
|
||
int i;
|
||
|
||
if (specs)
|
||
return; /* Already initialized. */
|
||
|
||
if (verbose_flag)
|
||
notice ("Using built-in specs.\n");
|
||
|
||
#ifdef EXTRA_SPECS
|
||
extra_specs = (struct spec_list *)
|
||
xcalloc (sizeof (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;
|
||
}
|
||
|
||
#ifdef ENABLE_SHARED_LIBGCC
|
||
/* ??? 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,
|
||
#ifdef NO_SHARED_LIBGCC_MULTILIB
|
||
"-lgcc_s"
|
||
#else
|
||
"-lgcc_s%M"
|
||
#endif
|
||
,
|
||
"-lgcc",
|
||
"-lgcc_eh");
|
||
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,
|
||
#ifdef NO_SHARED_LIBGCC_MULTILIB
|
||
"-lgcc_s"
|
||
#else
|
||
"-lgcc_s%M"
|
||
#endif
|
||
,
|
||
"libgcc.a%s",
|
||
"libgcc_eh.a%s");
|
||
p += 10;
|
||
in_sep = 0;
|
||
}
|
||
else
|
||
{
|
||
obstack_1grow (&obstack, *p);
|
||
in_sep = (*p == ' ');
|
||
p += 1;
|
||
}
|
||
}
|
||
|
||
obstack_1grow (&obstack, '\0');
|
||
libgcc_spec = obstack_finish (&obstack);
|
||
}
|
||
#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 = obstack_finish (&obstack);
|
||
}
|
||
#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 = obstack_finish (&obstack);
|
||
#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 (name, 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 = (struct spec_list *) xmalloc (sizeof (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 ((PTR) 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;
|
||
|
||
/* 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;
|
||
|
||
/* Clear out the vector of arguments (after a command is executed). */
|
||
|
||
static void
|
||
clear_args ()
|
||
{
|
||
argbuf_index = 0;
|
||
}
|
||
|
||
/* Add one argument to the vector at the end.
|
||
This is done when a space is seen or at the end of the line.
|
||
If DELETE_ALWAYS is nonzero, the arg is a filename
|
||
and the file should be deleted eventually.
|
||
If DELETE_FAILURE is nonzero, the arg is a filename
|
||
and the file should be deleted if this compilation fails. */
|
||
|
||
static void
|
||
store_arg (arg, delete_always, delete_failure)
|
||
const char *arg;
|
||
int delete_always, delete_failure;
|
||
{
|
||
if (argbuf_index + 1 == argbuf_length)
|
||
argbuf
|
||
= (const char **) xrealloc (argbuf,
|
||
(argbuf_length *= 2) * sizeof (const char *));
|
||
|
||
argbuf[argbuf_index++] = arg;
|
||
argbuf[argbuf_index] = 0;
|
||
|
||
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 (filename)
|
||
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 = xmalloc ((unsigned) statbuf.st_size + 1);
|
||
readlen = read (desc, buffer, (unsigned) statbuf.st_size);
|
||
if (readlen < 0)
|
||
pfatal_with_name (filename);
|
||
buffer[readlen] = 0;
|
||
close (desc);
|
||
|
||
specs = xmalloc (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 (filename, main_p)
|
||
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);
|
||
read_specs (new_filename ? new_filename : p1, FALSE);
|
||
continue;
|
||
}
|
||
else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
|
||
&& (p1[sizeof "%include_noerr" - 1] == ' '
|
||
|| p1[sizeof "%include_noerr" - 1] == '\t'))
|
||
{
|
||
char *new_filename;
|
||
|
||
p1 += sizeof "%include_noerr";
|
||
while (*p1 == ' ' || *p1 == '\t')
|
||
p1++;
|
||
|
||
if (*p1++ != '<' || p[-2] != '>')
|
||
fatal ("specs %%include syntax malformed after %ld characters",
|
||
(long) (p1 - buffer + 1));
|
||
|
||
p[-2] = '\0';
|
||
new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
|
||
if (new_filename)
|
||
read_specs (new_filename, FALSE);
|
||
else if (verbose_flag)
|
||
notice ("could not find specs file %s\n", p1);
|
||
continue;
|
||
}
|
||
else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
|
||
&& (p1[sizeof "%rename" - 1] == ' '
|
||
|| p1[sizeof "%rename" - 1] == '\t'))
|
||
{
|
||
int name_len;
|
||
struct spec_list *sl;
|
||
|
||
/* Get original name */
|
||
p1 += sizeof "%rename";
|
||
while (*p1 == ' ' || *p1 == '\t')
|
||
p1++;
|
||
|
||
if (! ISALPHA ((unsigned char) *p1))
|
||
fatal ("specs %%rename syntax malformed after %ld characters",
|
||
(long) (p1 - buffer));
|
||
|
||
p2 = p1;
|
||
while (*p2 && !ISSPACE ((unsigned char) *p2))
|
||
p2++;
|
||
|
||
if (*p2 != ' ' && *p2 != '\t')
|
||
fatal ("specs %%rename syntax malformed after %ld characters",
|
||
(long) (p2 - buffer));
|
||
|
||
name_len = p2 - p1;
|
||
*p2++ = '\0';
|
||
while (*p2 == ' ' || *p2 == '\t')
|
||
p2++;
|
||
|
||
if (! ISALPHA ((unsigned char) *p2))
|
||
fatal ("specs %%rename syntax malformed after %ld characters",
|
||
(long) (p2 - buffer));
|
||
|
||
/* Get new spec name. */
|
||
p3 = p2;
|
||
while (*p3 && !ISSPACE ((unsigned char) *p3))
|
||
p3++;
|
||
|
||
if (p3 != p - 1)
|
||
fatal ("specs %%rename syntax malformed after %ld characters",
|
||
(long) (p3 - buffer));
|
||
*p3 = '\0';
|
||
|
||
for (sl = specs; sl; sl = sl->next)
|
||
if (name_len == sl->name_len && !strcmp (sl->name, p1))
|
||
break;
|
||
|
||
if (!sl)
|
||
fatal ("specs %s spec was not found to be renamed", p1);
|
||
|
||
if (strcmp (p1, p2) == 0)
|
||
continue;
|
||
|
||
if (verbose_flag)
|
||
{
|
||
notice ("rename spec %s to %s\n", p1, p2);
|
||
#ifdef DEBUG_SPECS
|
||
notice ("spec is '%s'\n\n", *(sl->ptr_spec));
|
||
#endif
|
||
}
|
||
|
||
set_spec (p2, *(sl->ptr_spec));
|
||
if (sl->alloc_p)
|
||
free ((PTR) *(sl->ptr_spec));
|
||
|
||
*(sl->ptr_spec) = "";
|
||
sl->alloc_p = 0;
|
||
continue;
|
||
}
|
||
else
|
||
fatal ("specs unknown %% command after %ld characters",
|
||
(long) (p1 - buffer));
|
||
}
|
||
|
||
/* Find the colon that should end the suffix. */
|
||
p1 = p;
|
||
while (*p1 && *p1 != ':' && *p1 != '\n')
|
||
p1++;
|
||
|
||
/* The colon shouldn't be missing. */
|
||
if (*p1 != ':')
|
||
fatal ("specs file malformed after %ld characters",
|
||
(long) (p1 - buffer));
|
||
|
||
/* Skip back over trailing whitespace. */
|
||
p2 = p1;
|
||
while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
|
||
p2--;
|
||
|
||
/* Copy the suffix to a string. */
|
||
suffix = save_string (p, p2 - p);
|
||
/* Find the next line. */
|
||
p = skip_whitespace (p1 + 1);
|
||
if (p[1] == 0)
|
||
fatal ("specs file malformed after %ld characters",
|
||
(long) (p - buffer));
|
||
|
||
p1 = p;
|
||
/* Find next blank line or end of string. */
|
||
while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
|
||
p1++;
|
||
|
||
/* Specs end at the blank line and do not include the newline. */
|
||
spec = save_string (p, p1 - p);
|
||
p = p1;
|
||
|
||
/* Delete backslash-newline sequences from the spec. */
|
||
in = spec;
|
||
out = spec;
|
||
while (*in != 0)
|
||
{
|
||
if (in[0] == '\\' && in[1] == '\n')
|
||
in += 2;
|
||
else if (in[0] == '#')
|
||
while (*in && *in != '\n')
|
||
in++;
|
||
|
||
else
|
||
*out++ = *in++;
|
||
}
|
||
*out = 0;
|
||
|
||
if (suffix[0] == '*')
|
||
{
|
||
if (! strcmp (suffix, "*link_command"))
|
||
link_command_spec = spec;
|
||
else
|
||
set_spec (suffix + 1, spec);
|
||
}
|
||
else
|
||
{
|
||
/* Add this pair to the vector. */
|
||
compilers
|
||
= ((struct compiler *)
|
||
xrealloc (compilers,
|
||
(n_compilers + 2) * sizeof (struct compiler)));
|
||
|
||
compilers[n_compilers].suffix = suffix;
|
||
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 (filename, always_delete, fail_delete)
|
||
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 = (struct temp_file *) xmalloc (sizeof (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 = (struct temp_file *) xmalloc (sizeof (struct temp_file));
|
||
temp->next = failure_delete_queue;
|
||
temp->name = name;
|
||
failure_delete_queue = temp;
|
||
|
||
already2:;
|
||
}
|
||
}
|
||
|
||
/* Delete all the temporary files whose names we previously recorded. */
|
||
|
||
static void
|
||
delete_if_ordinary (name)
|
||
const char *name;
|
||
{
|
||
struct stat st;
|
||
#ifdef DEBUG
|
||
int i, c;
|
||
|
||
printf ("Delete %s? (y or n) ", name);
|
||
fflush (stdout);
|
||
i = getchar ();
|
||
if (i != '\n')
|
||
while ((c = getchar ()) != '\n' && c != EOF)
|
||
;
|
||
|
||
if (i == 'y' || i == 'Y')
|
||
#endif /* DEBUG */
|
||
if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
|
||
if (unlink (name) < 0)
|
||
if (verbose_flag)
|
||
perror_with_name (name);
|
||
}
|
||
|
||
static void
|
||
delete_temp_files ()
|
||
{
|
||
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 ()
|
||
{
|
||
struct temp_file *temp;
|
||
|
||
for (temp = failure_delete_queue; temp; temp = temp->next)
|
||
delete_if_ordinary (temp->name);
|
||
}
|
||
|
||
static void
|
||
clear_failure_queue ()
|
||
{
|
||
failure_delete_queue = 0;
|
||
}
|
||
|
||
/* Build a list of search directories from PATHS.
|
||
PREFIX is a string to prepend to the list.
|
||
If CHECK_DIR_P is non-zero we ensure the directory exists.
|
||
This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
|
||
It is also used by the --print-search-dirs flag. */
|
||
|
||
static char *
|
||
build_search_list (paths, prefix, check_dir_p)
|
||
struct path_prefix *paths;
|
||
const char *prefix;
|
||
int check_dir_p;
|
||
{
|
||
int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
|
||
int just_suffix_len
|
||
= (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
|
||
int first_time = TRUE;
|
||
struct prefix_list *pprefix;
|
||
|
||
obstack_grow (&collect_obstack, prefix, strlen (prefix));
|
||
obstack_1grow (&collect_obstack, '=');
|
||
|
||
for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
|
||
{
|
||
int len = strlen (pprefix->prefix);
|
||
|
||
if (machine_suffix
|
||
&& (! check_dir_p
|
||
|| is_directory (pprefix->prefix, machine_suffix, 0)))
|
||
{
|
||
if (!first_time)
|
||
obstack_1grow (&collect_obstack, PATH_SEPARATOR);
|
||
|
||
first_time = FALSE;
|
||
obstack_grow (&collect_obstack, pprefix->prefix, len);
|
||
obstack_grow (&collect_obstack, machine_suffix, suffix_len);
|
||
}
|
||
|
||
if (just_machine_suffix
|
||
&& pprefix->require_machine_suffix == 2
|
||
&& (! check_dir_p
|
||
|| is_directory (pprefix->prefix, just_machine_suffix, 0)))
|
||
{
|
||
if (! first_time)
|
||
obstack_1grow (&collect_obstack, PATH_SEPARATOR);
|
||
|
||
first_time = FALSE;
|
||
obstack_grow (&collect_obstack, pprefix->prefix, len);
|
||
obstack_grow (&collect_obstack, just_machine_suffix,
|
||
just_suffix_len);
|
||
}
|
||
|
||
if (! pprefix->require_machine_suffix)
|
||
{
|
||
if (! first_time)
|
||
obstack_1grow (&collect_obstack, PATH_SEPARATOR);
|
||
|
||
first_time = FALSE;
|
||
obstack_grow (&collect_obstack, pprefix->prefix, len);
|
||
}
|
||
}
|
||
|
||
obstack_1grow (&collect_obstack, '\0');
|
||
return obstack_finish (&collect_obstack);
|
||
}
|
||
|
||
/* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
|
||
for collect. */
|
||
|
||
static void
|
||
putenv_from_prefixes (paths, env_var)
|
||
struct path_prefix *paths;
|
||
const char *env_var;
|
||
{
|
||
putenv (build_search_list (paths, env_var, 1));
|
||
}
|
||
|
||
#ifndef VMS
|
||
|
||
/* FIXME: the location independence code for VMS is hairier than this,
|
||
and hasn't been written. */
|
||
|
||
/* Split a filename into component directories. */
|
||
|
||
static char **
|
||
split_directories (name, ptr_num_dirs)
|
||
const char *name;
|
||
int *ptr_num_dirs;
|
||
{
|
||
int num_dirs = 0;
|
||
char **dirs;
|
||
const char *p, *q;
|
||
int ch;
|
||
|
||
/* Count the number of directories. Special case MSDOS disk names as part
|
||
of the initial directory. */
|
||
p = name;
|
||
#ifdef HAVE_DOS_BASED_FILE_SYSTEM
|
||
if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
|
||
{
|
||
p += 3;
|
||
num_dirs++;
|
||
}
|
||
#endif /* HAVE_DOS_BASED_FILE_SYSTEM */
|
||
|
||
while ((ch = *p++) != '\0')
|
||
{
|
||
if (IS_DIR_SEPARATOR (ch))
|
||
{
|
||
num_dirs++;
|
||
while (IS_DIR_SEPARATOR (*p))
|
||
p++;
|
||
}
|
||
}
|
||
|
||
dirs = (char **) xmalloc (sizeof (char *) * (num_dirs + 2));
|
||
|
||
/* Now copy the directory parts. */
|
||
num_dirs = 0;
|
||
p = name;
|
||
#ifdef HAVE_DOS_BASED_FILE_SYSTEM
|
||
if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
|
||
{
|
||
dirs[num_dirs++] = save_string (p, 3);
|
||
p += 3;
|
||
}
|
||
#endif /* HAVE_DOS_BASED_FILE_SYSTEM */
|
||
|
||
q = p;
|
||
while ((ch = *p++) != '\0')
|
||
{
|
||
if (IS_DIR_SEPARATOR (ch))
|
||
{
|
||
while (IS_DIR_SEPARATOR (*p))
|
||
p++;
|
||
|
||
dirs[num_dirs++] = save_string (q, p - q);
|
||
q = p;
|
||
}
|
||
}
|
||
|
||
if (p - 1 - q > 0)
|
||
dirs[num_dirs++] = save_string (q, p - 1 - q);
|
||
|
||
dirs[num_dirs] = NULL;
|
||
if (ptr_num_dirs)
|
||
*ptr_num_dirs = num_dirs;
|
||
|
||
return dirs;
|
||
}
|
||
|
||
/* Release storage held by split directories. */
|
||
|
||
static void
|
||
free_split_directories (dirs)
|
||
char **dirs;
|
||
{
|
||
int i = 0;
|
||
|
||
while (dirs[i] != NULL)
|
||
free (dirs[i++]);
|
||
|
||
free ((char *) dirs);
|
||
}
|
||
|
||
/* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
|
||
to PREFIX starting with the directory portion of PROGNAME and a relative
|
||
pathname of the difference between BIN_PREFIX and PREFIX.
|
||
|
||
For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
|
||
/alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
|
||
function will return /red/green/blue/../omega.
|
||
|
||
If no relative prefix can be found, return NULL. */
|
||
|
||
static char *
|
||
make_relative_prefix (progname, bin_prefix, prefix)
|
||
const char *progname;
|
||
const char *bin_prefix;
|
||
const char *prefix;
|
||
{
|
||
char **prog_dirs, **bin_dirs, **prefix_dirs;
|
||
int prog_num, bin_num, prefix_num, std_loc_p;
|
||
int i, n, common;
|
||
|
||
prog_dirs = split_directories (progname, &prog_num);
|
||
bin_dirs = split_directories (bin_prefix, &bin_num);
|
||
|
||
/* If there is no full pathname, try to find the program by checking in each
|
||
of the directories specified in the PATH environment variable. */
|
||
if (prog_num == 1)
|
||
{
|
||
char *temp;
|
||
|
||
GET_ENV_PATH_LIST (temp, "PATH");
|
||
if (temp)
|
||
{
|
||
char *startp, *endp, *nstore;
|
||
size_t prefixlen = strlen (temp) + 1;
|
||
if (prefixlen < 2)
|
||
prefixlen = 2;
|
||
|
||
nstore = (char *) alloca (prefixlen + strlen (progname) + 1);
|
||
|
||
startp = endp = temp;
|
||
while (1)
|
||
{
|
||
if (*endp == PATH_SEPARATOR || *endp == 0)
|
||
{
|
||
if (endp == startp)
|
||
{
|
||
nstore[0] = '.';
|
||
nstore[1] = DIR_SEPARATOR;
|
||
nstore[2] = '\0';
|
||
}
|
||
else
|
||
{
|
||
strncpy (nstore, startp, endp - startp);
|
||
if (! IS_DIR_SEPARATOR (endp[-1]))
|
||
{
|
||
nstore[endp - startp] = DIR_SEPARATOR;
|
||
nstore[endp - startp + 1] = 0;
|
||
}
|
||
else
|
||
nstore[endp - startp] = 0;
|
||
}
|
||
strcat (nstore, progname);
|
||
if (! access (nstore, X_OK)
|
||
#ifdef HAVE_HOST_EXECUTABLE_SUFFIX
|
||
|| ! access (strcat (nstore, HOST_EXECUTABLE_SUFFIX), X_OK)
|
||
#endif
|
||
)
|
||
{
|
||
free_split_directories (prog_dirs);
|
||
progname = nstore;
|
||
prog_dirs = split_directories (progname, &prog_num);
|
||
break;
|
||
}
|
||
|
||
if (*endp == 0)
|
||
break;
|
||
endp = startp = endp + 1;
|
||
}
|
||
else
|
||
endp++;
|
||
}
|
||
}
|
||
}
|
||
|
||
/* Remove the program name from comparison of directory names. */
|
||
prog_num--;
|
||
|
||
/* Determine if the compiler is installed in the standard location, and if
|
||
so, we don't need to specify relative directories. Also, if argv[0]
|
||
doesn't contain any directory specifiers, there is not much we can do. */
|
||
std_loc_p = 0;
|
||
if (prog_num == bin_num)
|
||
{
|
||
for (i = 0; i < bin_num; i++)
|
||
{
|
||
if (strcmp (prog_dirs[i], bin_dirs[i]) != 0)
|
||
break;
|
||
}
|
||
|
||
if (prog_num <= 0 || i == bin_num)
|
||
{
|
||
std_loc_p = 1;
|
||
free_split_directories (prog_dirs);
|
||
free_split_directories (bin_dirs);
|
||
prog_dirs = bin_dirs = (char **) 0;
|
||
return NULL;
|
||
}
|
||
}
|
||
|
||
prefix_dirs = split_directories (prefix, &prefix_num);
|
||
|
||
/* Find how many directories are in common between bin_prefix & prefix. */
|
||
n = (prefix_num < bin_num) ? prefix_num : bin_num;
|
||
for (common = 0; common < n; common++)
|
||
{
|
||
if (strcmp (bin_dirs[common], prefix_dirs[common]) != 0)
|
||
break;
|
||
}
|
||
|
||
/* If there are no common directories, there can be no relative prefix. */
|
||
if (common == 0)
|
||
{
|
||
free_split_directories (prog_dirs);
|
||
free_split_directories (bin_dirs);
|
||
free_split_directories (prefix_dirs);
|
||
return NULL;
|
||
}
|
||
|
||
/* Build up the pathnames in argv[0]. */
|
||
for (i = 0; i < prog_num; i++)
|
||
obstack_grow (&obstack, prog_dirs[i], strlen (prog_dirs[i]));
|
||
|
||
/* Now build up the ..'s. */
|
||
for (i = common; i < n; i++)
|
||
{
|
||
obstack_grow (&obstack, DIR_UP, sizeof (DIR_UP) - 1);
|
||
obstack_1grow (&obstack, DIR_SEPARATOR);
|
||
}
|
||
|
||
/* Put in directories to move over to prefix. */
|
||
for (i = common; i < prefix_num; i++)
|
||
obstack_grow (&obstack, prefix_dirs[i], strlen (prefix_dirs[i]));
|
||
|
||
free_split_directories (prog_dirs);
|
||
free_split_directories (bin_dirs);
|
||
free_split_directories (prefix_dirs);
|
||
|
||
obstack_1grow (&obstack, '\0');
|
||
return obstack_finish (&obstack);
|
||
}
|
||
#endif /* VMS */
|
||
|
||
/* 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 (name, mode)
|
||
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);
|
||
}
|
||
|
||
/* Search for NAME using the prefix list PREFIXES. MODE is passed to
|
||
access to check permissions.
|
||
Return 0 if not found, otherwise return its name, allocated with malloc. */
|
||
|
||
static char *
|
||
find_a_file (pprefix, name, mode)
|
||
struct path_prefix *pprefix;
|
||
const char *name;
|
||
int mode;
|
||
{
|
||
char *temp;
|
||
const char *const file_suffix =
|
||
((mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : "");
|
||
struct prefix_list *pl;
|
||
int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
|
||
|
||
#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
|
||
|
||
if (machine_suffix)
|
||
len += strlen (machine_suffix);
|
||
|
||
temp = xmalloc (len);
|
||
|
||
/* Determine the filename to execute (special case for absolute paths). */
|
||
|
||
if (IS_ABSOLUTE_PATHNAME (name))
|
||
{
|
||
if (access (name, mode) == 0)
|
||
{
|
||
strcpy (temp, name);
|
||
return temp;
|
||
}
|
||
}
|
||
else
|
||
for (pl = pprefix->plist; pl; pl = pl->next)
|
||
{
|
||
if (machine_suffix)
|
||
{
|
||
/* Some systems have a suffix for executable files.
|
||
So try appending that first. */
|
||
if (file_suffix[0] != 0)
|
||
{
|
||
strcpy (temp, pl->prefix);
|
||
strcat (temp, machine_suffix);
|
||
strcat (temp, name);
|
||
strcat (temp, file_suffix);
|
||
if (access_check (temp, mode) == 0)
|
||
{
|
||
if (pl->used_flag_ptr != 0)
|
||
*pl->used_flag_ptr = 1;
|
||
return temp;
|
||
}
|
||
}
|
||
|
||
/* Now try just the name. */
|
||
strcpy (temp, pl->prefix);
|
||
strcat (temp, machine_suffix);
|
||
strcat (temp, name);
|
||
if (access_check (temp, mode) == 0)
|
||
{
|
||
if (pl->used_flag_ptr != 0)
|
||
*pl->used_flag_ptr = 1;
|
||
return temp;
|
||
}
|
||
}
|
||
|
||
/* Certain prefixes are tried with just the machine type,
|
||
not the version. This is used for finding as, ld, etc. */
|
||
if (just_machine_suffix && pl->require_machine_suffix == 2)
|
||
{
|
||
/* Some systems have a suffix for executable files.
|
||
So try appending that first. */
|
||
if (file_suffix[0] != 0)
|
||
{
|
||
strcpy (temp, pl->prefix);
|
||
strcat (temp, just_machine_suffix);
|
||
strcat (temp, name);
|
||
strcat (temp, file_suffix);
|
||
if (access_check (temp, mode) == 0)
|
||
{
|
||
if (pl->used_flag_ptr != 0)
|
||
*pl->used_flag_ptr = 1;
|
||
return temp;
|
||
}
|
||
}
|
||
|
||
strcpy (temp, pl->prefix);
|
||
strcat (temp, just_machine_suffix);
|
||
strcat (temp, name);
|
||
if (access_check (temp, mode) == 0)
|
||
{
|
||
if (pl->used_flag_ptr != 0)
|
||
*pl->used_flag_ptr = 1;
|
||
return temp;
|
||
}
|
||
}
|
||
|
||
/* Certain prefixes can't be used without the machine suffix
|
||
when the machine or version is explicitly specified. */
|
||
if (! pl->require_machine_suffix)
|
||
{
|
||
/* Some systems have a suffix for executable files.
|
||
So try appending that first. */
|
||
if (file_suffix[0] != 0)
|
||
{
|
||
strcpy (temp, pl->prefix);
|
||
strcat (temp, name);
|
||
strcat (temp, file_suffix);
|
||
if (access_check (temp, mode) == 0)
|
||
{
|
||
if (pl->used_flag_ptr != 0)
|
||
*pl->used_flag_ptr = 1;
|
||
return temp;
|
||
}
|
||
}
|
||
|
||
strcpy (temp, pl->prefix);
|
||
strcat (temp, name);
|
||
if (access_check (temp, mode) == 0)
|
||
{
|
||
if (pl->used_flag_ptr != 0)
|
||
*pl->used_flag_ptr = 1;
|
||
return temp;
|
||
}
|
||
}
|
||
}
|
||
|
||
free (temp);
|
||
return 0;
|
||
}
|
||
|
||
/* 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 assending
|
||
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 (pprefix, prefix, component, priority, require_machine_suffix, warn)
|
||
struct path_prefix *pprefix;
|
||
const char *prefix;
|
||
const char *component;
|
||
/* enum prefix_priority */ int priority;
|
||
int require_machine_suffix;
|
||
int *warn;
|
||
{
|
||
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 = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
|
||
pl->prefix = prefix;
|
||
pl->require_machine_suffix = require_machine_suffix;
|
||
pl->used_flag_ptr = warn;
|
||
pl->priority = priority;
|
||
if (warn)
|
||
*warn = 0;
|
||
|
||
/* Insert after PREV */
|
||
pl->next = (*prev);
|
||
(*prev) = pl;
|
||
}
|
||
|
||
/* Execute the command specified by the arguments on the current line of spec.
|
||
When using pipes, this includes several piped-together commands
|
||
with `|' between them.
|
||
|
||
Return 0 if successful, -1 if failed. */
|
||
|
||
static int
|
||
execute ()
|
||
{
|
||
int i;
|
||
int n_commands; /* # of command. */
|
||
char *string;
|
||
struct command
|
||
{
|
||
const char *prog; /* program name. */
|
||
const char **argv; /* vector of args. */
|
||
int pid; /* pid of process for this command. */
|
||
};
|
||
|
||
struct command *commands; /* each command buffer with above info. */
|
||
|
||
/* Count # of piped commands. */
|
||
for (n_commands = 1, i = 0; i < argbuf_index; i++)
|
||
if (strcmp (argbuf[i], "|") == 0)
|
||
n_commands++;
|
||
|
||
/* Get storage for each command. */
|
||
commands = (struct command *) alloca (n_commands * sizeof (struct command));
|
||
|
||
/* Split argbuf into its separate piped processes,
|
||
and record info about each one.
|
||
Also search for the programs that are to be run. */
|
||
|
||
commands[0].prog = argbuf[0]; /* first command. */
|
||
commands[0].argv = &argbuf[0];
|
||
string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
|
||
|
||
if (string)
|
||
commands[0].argv[0] = string;
|
||
|
||
for (n_commands = 1, i = 0; i < argbuf_index; i++)
|
||
if (strcmp (argbuf[i], "|") == 0)
|
||
{ /* each command. */
|
||
#if defined (__MSDOS__) || defined (OS2) || defined (VMS)
|
||
fatal ("-pipe not supported");
|
||
#endif
|
||
argbuf[i] = 0; /* termination of command args. */
|
||
commands[n_commands].prog = argbuf[i + 1];
|
||
commands[n_commands].argv = &argbuf[i + 1];
|
||
string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
|
||
if (string)
|
||
commands[n_commands].argv[0] = string;
|
||
n_commands++;
|
||
}
|
||
|
||
argbuf[argbuf_index] = 0;
|
||
|
||
/* If -v, print what we are about to do, and maybe query. */
|
||
|
||
if (verbose_flag)
|
||
{
|
||
/* For help listings, put a blank line between sub-processes. */
|
||
if (print_help_list)
|
||
fputc ('\n', stderr);
|
||
|
||
/* Print each piped command as a separate line. */
|
||
for (i = 0; i < n_commands; i++)
|
||
{
|
||
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)
|
||
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 */
|
||
}
|
||
|
||
/* Run each piped subprocess. */
|
||
|
||
for (i = 0; i < n_commands; i++)
|
||
{
|
||
char *errmsg_fmt, *errmsg_arg;
|
||
const char *string = commands[i].argv[0];
|
||
|
||
/* For some bizarre reason, the second argument of execvp() is
|
||
char *const *, not const char *const *. */
|
||
commands[i].pid = pexecute (string, (char *const *) commands[i].argv,
|
||
programname, temp_filename,
|
||
&errmsg_fmt, &errmsg_arg,
|
||
((i == 0 ? PEXECUTE_FIRST : 0)
|
||
| (i + 1 == n_commands ? PEXECUTE_LAST : 0)
|
||
| (string == commands[i].prog
|
||
? PEXECUTE_SEARCH : 0)
|
||
| (verbose_flag ? PEXECUTE_VERBOSE : 0)));
|
||
|
||
if (commands[i].pid == -1)
|
||
pfatal_pexecute (errmsg_fmt, errmsg_arg);
|
||
|
||
if (string != commands[i].prog)
|
||
free ((PTR) string);
|
||
}
|
||
|
||
execution_count++;
|
||
|
||
/* Wait for all the subprocesses to finish.
|
||
We don't care what order they finish in;
|
||
we know that N_COMMANDS waits will get them all.
|
||
Ignore subprocesses that we don't know about,
|
||
since they can be spawned by the process that exec'ed us. */
|
||
|
||
{
|
||
int ret_code = 0;
|
||
#ifdef HAVE_GETRUSAGE
|
||
struct timeval d;
|
||
double ut = 0.0, st = 0.0;
|
||
#endif
|
||
|
||
for (i = 0; i < n_commands;)
|
||
{
|
||
int j;
|
||
int status;
|
||
int pid;
|
||
|
||
pid = pwait (commands[i].pid, &status, 0);
|
||
if (pid < 0)
|
||
abort ();
|
||
|
||
#ifdef HAVE_GETRUSAGE
|
||
if (report_times)
|
||
{
|
||
/* getrusage returns the total resource usage of all children
|
||
up to now. Copy the previous values into prus, get the
|
||
current statistics, then take the difference. */
|
||
|
||
prus = rus;
|
||
getrusage (RUSAGE_CHILDREN, &rus);
|
||
d.tv_sec = rus.ru_utime.tv_sec - prus.ru_utime.tv_sec;
|
||
d.tv_usec = rus.ru_utime.tv_usec - prus.ru_utime.tv_usec;
|
||
ut = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
|
||
|
||
d.tv_sec = rus.ru_stime.tv_sec - prus.ru_stime.tv_sec;
|
||
d.tv_usec = rus.ru_stime.tv_usec - prus.ru_stime.tv_usec;
|
||
st = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
|
||
}
|
||
#endif
|
||
|
||
for (j = 0; j < n_commands; j++)
|
||
if (commands[j].pid == pid)
|
||
{
|
||
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))
|
||
;
|
||
else
|
||
#endif
|
||
fatal ("\
|
||
Internal error: %s (program %s)\n\
|
||
Please submit a full bug report.\n\
|
||
See %s for instructions.",
|
||
strsignal (WTERMSIG (status)), commands[j].prog,
|
||
GCCBUGURL);
|
||
signal_count++;
|
||
ret_code = -1;
|
||
}
|
||
else if (WIFEXITED (status)
|
||
&& WEXITSTATUS (status) >= MIN_FATAL_STATUS)
|
||
{
|
||
if (WEXITSTATUS (status) > greatest_status)
|
||
greatest_status = WEXITSTATUS (status);
|
||
ret_code = -1;
|
||
}
|
||
#ifdef HAVE_GETRUSAGE
|
||
if (report_times && ut + st != 0)
|
||
notice ("# %s %.2f %.2f\n", commands[j].prog, ut, st);
|
||
#endif
|
||
break;
|
||
}
|
||
}
|
||
return ret_code;
|
||
}
|
||
}
|
||
|
||
/* Find all the switches given to us
|
||
and make a vector describing them.
|
||
The elements of the vector are strings, one per switch given.
|
||
If a switch uses following arguments, then the `part1' field
|
||
is the switch itself and the `args' field
|
||
is a null-terminated vector containing the following arguments.
|
||
The `live_cond' field is:
|
||
0 when initialized
|
||
1 if the switch is true in a conditional spec,
|
||
-1 if false (overridden by a later switch)
|
||
-2 if 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_OK 0
|
||
#define SWITCH_FALSE -1
|
||
#define SWITCH_IGNORE -2
|
||
#define SWITCH_LIVE 1
|
||
|
||
struct switchstr
|
||
{
|
||
const char *part1;
|
||
const char **args;
|
||
int live_cond;
|
||
unsigned char validated;
|
||
unsigned char ordering;
|
||
};
|
||
|
||
static struct switchstr *switches;
|
||
|
||
static int n_switches;
|
||
|
||
struct infile
|
||
{
|
||
const char *name;
|
||
const char *language;
|
||
};
|
||
|
||
/* Also a vector of input files specified. */
|
||
|
||
static struct infile *infiles;
|
||
|
||
int n_infiles;
|
||
|
||
/* This counts the number of libraries added by lang_specific_driver, so that
|
||
we can tell if there were any user supplied any files or libraries. */
|
||
|
||
static int added_libraries;
|
||
|
||
/* And a vector of corresponding output files is made up later. */
|
||
|
||
const char **outfiles;
|
||
|
||
/* Used to track if none of the -B paths are used. */
|
||
static int warn_B;
|
||
|
||
/* Used to track if standard path isn't used and -b or -V is specified. */
|
||
static int warn_std;
|
||
|
||
/* Gives value to pass as "warn" to add_prefix for standard prefixes. */
|
||
static int *warn_std_ptr = 0;
|
||
|
||
|
||
#if defined(FREEBSD_NATIVE)
|
||
#include <objformat.h>
|
||
|
||
typedef enum { OBJFMT_UNKNOWN, OBJFMT_AOUT, OBJFMT_ELF } objf_t;
|
||
|
||
static objf_t objformat = OBJFMT_UNKNOWN;
|
||
#endif
|
||
|
||
|
||
|
||
#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 (name, do_exe, do_obj)
|
||
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 = obstack_finish (&obstack);
|
||
}
|
||
#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 = obstack_finish (&obstack);
|
||
#endif
|
||
|
||
return name;
|
||
}
|
||
#endif
|
||
|
||
/* Display the command line switches accepted by gcc. */
|
||
static void
|
||
display_help ()
|
||
{
|
||
printf (_("Usage: %s [options] file...\n"), programname);
|
||
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);
|
||
if (! verbose_flag)
|
||
fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
|
||
fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
|
||
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 (_(" -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 (_(" -Xlinker <arg> Pass <arg> on to the linker\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 (_(" -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\
|
||
Permissable 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 (option, len)
|
||
const char *option;
|
||
int len;
|
||
{
|
||
n_preprocessor_options++;
|
||
|
||
if (! preprocessor_options)
|
||
preprocessor_options
|
||
= (char **) xmalloc (n_preprocessor_options * sizeof (char *));
|
||
else
|
||
preprocessor_options
|
||
= (char **) xrealloc (preprocessor_options,
|
||
n_preprocessor_options * sizeof (char *));
|
||
|
||
preprocessor_options [n_preprocessor_options - 1] =
|
||
save_string (option, len);
|
||
}
|
||
|
||
static void
|
||
add_assembler_option (option, len)
|
||
const char *option;
|
||
int len;
|
||
{
|
||
n_assembler_options++;
|
||
|
||
if (! assembler_options)
|
||
assembler_options
|
||
= (char **) xmalloc (n_assembler_options * sizeof (char *));
|
||
else
|
||
assembler_options
|
||
= (char **) xrealloc (assembler_options,
|
||
n_assembler_options * sizeof (char *));
|
||
|
||
assembler_options [n_assembler_options - 1] = save_string (option, len);
|
||
}
|
||
|
||
static void
|
||
add_linker_option (option, len)
|
||
const char *option;
|
||
int len;
|
||
{
|
||
n_linker_options++;
|
||
|
||
if (! linker_options)
|
||
linker_options
|
||
= (char **) xmalloc (n_linker_options * sizeof (char *));
|
||
else
|
||
linker_options
|
||
= (char **) xrealloc (linker_options,
|
||
n_linker_options * sizeof (char *));
|
||
|
||
linker_options [n_linker_options - 1] = save_string (option, len);
|
||
}
|
||
|
||
/* Create the vector `switches' and its contents.
|
||
Store its length in `n_switches'. */
|
||
|
||
static void
|
||
process_command (argc, argv)
|
||
int argc;
|
||
const char *const *argv;
|
||
{
|
||
int i;
|
||
const char *temp;
|
||
char *temp1;
|
||
const char *spec_lang = 0;
|
||
int last_language_n_infiles;
|
||
int have_c = 0;
|
||
int have_o = 0;
|
||
int lang_n_infiles = 0;
|
||
#ifdef MODIFY_TARGET_NAME
|
||
int is_modify_target_name;
|
||
int j;
|
||
#endif
|
||
|
||
GET_ENV_PATH_LIST (gcc_exec_prefix, "GCC_EXEC_PREFIX");
|
||
|
||
n_switches = 0;
|
||
n_infiles = 0;
|
||
added_libraries = 0;
|
||
|
||
/* Figure compiler version from version string. */
|
||
|
||
compiler_version = temp1 = xstrdup (version_string);
|
||
|
||
for (; *temp1; ++temp1)
|
||
{
|
||
if (*temp1 == ' ')
|
||
{
|
||
*temp1 = '\0';
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* 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]. */
|
||
|
||
#ifndef FREEBSD_NATIVE
|
||
#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);
|
||
if (gcc_exec_prefix)
|
||
putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL));
|
||
}
|
||
#endif
|
||
#endif /* not FREEBSD_NATIVE */
|
||
|
||
if (gcc_exec_prefix)
|
||
{
|
||
int len = strlen (gcc_exec_prefix);
|
||
|
||
if (len > (int) sizeof ("/lib/gcc-lib/") - 1
|
||
&& (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
|
||
{
|
||
temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1;
|
||
if (IS_DIR_SEPARATOR (*temp)
|
||
&& strncmp (temp + 1, "lib", 3) == 0
|
||
&& IS_DIR_SEPARATOR (temp[4])
|
||
&& strncmp (temp + 5, "gcc-lib", 7) == 0)
|
||
len -= sizeof ("/lib/gcc-lib/") - 1;
|
||
}
|
||
|
||
set_std_prefix (gcc_exec_prefix, len);
|
||
add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC",
|
||
PREFIX_PRIORITY_LAST, 0, NULL);
|
||
add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
|
||
PREFIX_PRIORITY_LAST, 0, NULL);
|
||
}
|
||
|
||
/* COMPILER_PATH and LIBRARY_PATH have values
|
||
that are lists of directory names with colons. */
|
||
|
||
GET_ENV_PATH_LIST (temp, "COMPILER_PATH");
|
||
if (temp)
|
||
{
|
||
const char *startp, *endp;
|
||
char *nstore = (char *) alloca (strlen (temp) + 3);
|
||
|
||
startp = endp = temp;
|
||
while (1)
|
||
{
|
||
if (*endp == PATH_SEPARATOR || *endp == 0)
|
||
{
|
||
strncpy (nstore, startp, endp - startp);
|
||
if (endp == startp)
|
||
strcpy (nstore, concat (".", dir_separator_str, NULL));
|
||
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, NULL);
|
||
add_prefix (&include_prefixes,
|
||
concat (nstore, "include", NULL),
|
||
0, PREFIX_PRIORITY_LAST, 0, NULL);
|
||
if (*endp == 0)
|
||
break;
|
||
endp = startp = endp + 1;
|
||
}
|
||
else
|
||
endp++;
|
||
}
|
||
}
|
||
|
||
GET_ENV_PATH_LIST (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, NULL);
|
||
if (*endp == 0)
|
||
break;
|
||
endp = startp = endp + 1;
|
||
}
|
||
else
|
||
endp++;
|
||
}
|
||
}
|
||
|
||
/* Use LPATH like LIBRARY_PATH (for the CMU build program). */
|
||
GET_ENV_PATH_LIST (temp, "LPATH");
|
||
if (temp && *cross_compile == '0')
|
||
{
|
||
const char *startp, *endp;
|
||
char *nstore = (char *) alloca (strlen (temp) + 3);
|
||
|
||
startp = endp = temp;
|
||
while (1)
|
||
{
|
||
if (*endp == PATH_SEPARATOR || *endp == 0)
|
||
{
|
||
strncpy (nstore, startp, endp - startp);
|
||
if (endp == startp)
|
||
strcpy (nstore, concat (".", dir_separator_str, NULL));
|
||
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, NULL);
|
||
if (*endp == 0)
|
||
break;
|
||
endp = startp = endp + 1;
|
||
}
|
||
else
|
||
endp++;
|
||
}
|
||
}
|
||
|
||
#if defined(FREEBSD_NATIVE)
|
||
{
|
||
char buf[64];
|
||
if (getobjformat (buf, sizeof buf, &argc, argv))
|
||
if (strcmp (buf, "aout") == 0)
|
||
objformat = OBJFMT_AOUT;
|
||
else if (strcmp (buf, "elf") == 0)
|
||
objformat = OBJFMT_ELF;
|
||
else
|
||
fprintf(stderr, "Unrecognized object format: %s\n", buf);
|
||
}
|
||
#endif
|
||
|
||
/* Options specified as if they appeared on the command line. */
|
||
temp = getenv ("GCC_OPTIONS");
|
||
if ((temp) && (strlen (temp) > 0))
|
||
{
|
||
int len;
|
||
int optc = 1;
|
||
int new_argc;
|
||
char **new_argv;
|
||
char *envopts;
|
||
|
||
while (isspace (*temp))
|
||
temp++;
|
||
len = strlen (temp);
|
||
envopts = (char *) xmalloc (len + 1);
|
||
strcpy (envopts, temp);
|
||
|
||
for (i = 0; i < (len - 1); i++)
|
||
if ((isspace (envopts[i])) && ! (isspace (envopts[i+1])))
|
||
optc++;
|
||
|
||
new_argv = (char **) alloca ((optc + argc) * sizeof(char *));
|
||
|
||
for (i = 0, new_argc = 1; new_argc <= optc; new_argc++)
|
||
{
|
||
while (isspace (envopts[i]))
|
||
i++;
|
||
new_argv[new_argc] = envopts + i;
|
||
while (!isspace (envopts[i]) && (envopts[i] != '\0'))
|
||
i++;
|
||
envopts[i++] = '\0';
|
||
}
|
||
for (i = 1; i < argc; i++)
|
||
new_argv[new_argc++] = argv[i];
|
||
|
||
argv = new_argv;
|
||
argc = new_argc;
|
||
}
|
||
|
||
/* Convert new-style -- options to old-style. */
|
||
translate_options (&argc, &argv);
|
||
|
||
/* Do language-specific adjustment/addition of flags. */
|
||
lang_specific_driver (&argc, &argv, &added_libraries);
|
||
|
||
/* Scan argv twice. Here, the first time, just count how many switches
|
||
there will be in their vector, and how many input files in theirs.
|
||
Also parse any switches that determine the configuration name, such as -b.
|
||
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 (GCC) %s\n"), programname, version_string);
|
||
fputs (_("Copyright (C) 2002 Free Software Foundation, Inc.\n"),
|
||
stdout);
|
||
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 (strcmp (argv[i], "-ftarget-help") == 0)
|
||
{
|
||
/* translate_options() has turned --target-help into -ftarget-help. */
|
||
target_help_flag = 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 (! 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], "-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], "-specs") == 0)
|
||
{
|
||
struct user_specs *user = (struct user_specs *)
|
||
xmalloc (sizeof (struct user_specs));
|
||
if (++i >= argc)
|
||
fatal ("argument to `-specs' is missing");
|
||
|
||
user->next = (struct user_specs *) 0;
|
||
user->filename = argv[i];
|
||
if (user_specs_tail)
|
||
user_specs_tail->next = user;
|
||
else
|
||
user_specs_head = user;
|
||
user_specs_tail = user;
|
||
}
|
||
else if (strncmp (argv[i], "-specs=", 7) == 0)
|
||
{
|
||
struct user_specs *user = (struct user_specs *)
|
||
xmalloc (sizeof (struct user_specs));
|
||
if (strlen (argv[i]) == 7)
|
||
fatal ("argument to `-specs=' is missing");
|
||
|
||
user->next = (struct user_specs *) 0;
|
||
user->filename = argv[i] + 7;
|
||
if (user_specs_tail)
|
||
user_specs_tail->next = user;
|
||
else
|
||
user_specs_head = user;
|
||
user_specs_tail = user;
|
||
}
|
||
else if (strcmp (argv[i], "-time") == 0)
|
||
report_times = 1;
|
||
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':
|
||
n_switches++;
|
||
if (p[1] == 0 && i + 1 == argc)
|
||
fatal ("argument to `-b' is missing");
|
||
if (p[1] == 0)
|
||
spec_machine = argv[++i];
|
||
else
|
||
spec_machine = p + 1;
|
||
|
||
warn_std_ptr = &warn_std;
|
||
break;
|
||
|
||
case 'B':
|
||
{
|
||
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, "", 0))
|
||
{
|
||
char *tmp = xmalloc (len + 2);
|
||
strcpy (tmp, value);
|
||
tmp[len] = DIR_SEPARATOR;
|
||
tmp[++ len] = 0;
|
||
value = tmp;
|
||
}
|
||
|
||
/* As a kludge, if the arg is "[foo/]stageN/", just
|
||
add "[foo/]include" to the include prefix. */
|
||
if ((len == 7
|
||
|| (len > 7
|
||
&& (IS_DIR_SEPARATOR (value[len - 8]))))
|
||
&& strncmp (value + len - 7, "stage", 5) == 0
|
||
&& ISDIGIT (value[len - 2])
|
||
&& (IS_DIR_SEPARATOR (value[len - 1])))
|
||
{
|
||
if (len == 7)
|
||
add_prefix (&include_prefixes, "include", NULL,
|
||
PREFIX_PRIORITY_B_OPT, 0, NULL);
|
||
else
|
||
{
|
||
char * string = xmalloc (len + 1);
|
||
|
||
strncpy (string, value, len - 7);
|
||
strcpy (string + len - 7, "include");
|
||
add_prefix (&include_prefixes, string, NULL,
|
||
PREFIX_PRIORITY_B_OPT, 0, NULL);
|
||
}
|
||
}
|
||
|
||
add_prefix (&exec_prefixes, value, NULL,
|
||
PREFIX_PRIORITY_B_OPT, 0, &warn_B);
|
||
add_prefix (&startfile_prefixes, value, NULL,
|
||
PREFIX_PRIORITY_B_OPT, 0, &warn_B);
|
||
add_prefix (&include_prefixes, concat (value, "include", NULL),
|
||
NULL, PREFIX_PRIORITY_B_OPT, 0, NULL);
|
||
n_switches++;
|
||
}
|
||
break;
|
||
|
||
case 'v': /* Print our subcommands and print versions. */
|
||
n_switches++;
|
||
/* If they do anything other than exactly `-v', don't set
|
||
verbose_flag; rather, continue on to give the error. */
|
||
if (p[1] != 0)
|
||
break;
|
||
verbose_flag++;
|
||
break;
|
||
|
||
case 'V':
|
||
n_switches++;
|
||
if (p[1] == 0 && i + 1 == argc)
|
||
fatal ("argument to `-V' is missing");
|
||
if (p[1] == 0)
|
||
spec_version = argv[++i];
|
||
else
|
||
spec_version = p + 1;
|
||
compiler_version = spec_version;
|
||
warn_std_ptr = &warn_std;
|
||
|
||
/* Validate the version number. Use the same checks
|
||
done when inserting it into a spec.
|
||
|
||
The format of the version string is
|
||
([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
|
||
{
|
||
const char *v = compiler_version;
|
||
|
||
/* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
|
||
while (! ISDIGIT (*v))
|
||
v++;
|
||
|
||
if (v > compiler_version && v[-1] != '-')
|
||
fatal ("invalid version number format");
|
||
|
||
/* Set V after the first period. */
|
||
while (ISDIGIT (*v))
|
||
v++;
|
||
|
||
if (*v != '.')
|
||
fatal ("invalid version number format");
|
||
|
||
v++;
|
||
while (ISDIGIT (*v))
|
||
v++;
|
||
|
||
if (*v != 0 && *v != ' ' && *v != '.' && *v != '-')
|
||
fatal ("invalid version number format");
|
||
}
|
||
break;
|
||
|
||
case 'S':
|
||
case 'c':
|
||
if (p[1] == 0)
|
||
{
|
||
have_c = 1;
|
||
n_switches++;
|
||
break;
|
||
}
|
||
goto normal_switch;
|
||
|
||
case 'o':
|
||
have_o = 1;
|
||
#if defined(HAVE_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 < sizeof modify_target / sizeof modify_target[0]; j++)
|
||
if (! strcmp (argv[i], modify_target[j].sw))
|
||
{
|
||
char *new_name
|
||
= (char *) xmalloc (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 (have_c && have_o && lang_n_infiles > 1)
|
||
fatal ("cannot specify -o with -c or -S and multiple compilations");
|
||
|
||
/* Set up the search paths before we go looking for config files. */
|
||
|
||
/* These come before the md prefixes so that we will find gcc's subcommands
|
||
(such as cpp) rather than those of the host system. */
|
||
/* Use 2 as fourth arg meaning try just the machine as a suffix,
|
||
as well as trying the machine and the version. */
|
||
#ifdef FREEBSD_NATIVE
|
||
switch (objformat)
|
||
{
|
||
case OBJFMT_AOUT:
|
||
n_switches++; /* add implied -maout */
|
||
add_prefix (&exec_prefixes, PREFIX"/libexec/aout/", "BINUTILS",
|
||
0, 0, warn_std_ptr);
|
||
break;
|
||
case OBJFMT_ELF:
|
||
add_prefix (&exec_prefixes, PREFIX"/libexec/elf/", "BINUTILS",
|
||
0, 0, warn_std_ptr);
|
||
break;
|
||
case OBJFMT_UNKNOWN:
|
||
fatal ("object format unknown");
|
||
}
|
||
#endif /* FREEBSD_NATIVE */
|
||
#ifndef OS2
|
||
add_prefix (&exec_prefixes, standard_exec_prefix, "GCC",
|
||
PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
|
||
add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
|
||
PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
|
||
#ifndef FREEBSD_NATIVE
|
||
add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
|
||
PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
|
||
#endif /* not FREEBSD_NATIVE */
|
||
#endif
|
||
|
||
#ifndef FREEBSD_NATIVE
|
||
add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
|
||
PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
|
||
add_prefix (&startfile_prefixes, standard_exec_prefix_1, "BINUTILS",
|
||
PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
|
||
#endif /* not FREEBSD_NATIVE */
|
||
|
||
tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
|
||
dir_separator_str, NULL);
|
||
|
||
/* If tooldir is relative, base it on exec_prefixes. A relative
|
||
tooldir lets us move the installed tree as a unit.
|
||
|
||
If GCC_EXEC_PREFIX is defined, then we want to add two relative
|
||
directories, so that we can search both the user specified directory
|
||
and the standard place. */
|
||
|
||
if (!IS_ABSOLUTE_PATHNAME (tooldir_prefix))
|
||
{
|
||
if (gcc_exec_prefix)
|
||
{
|
||
char *gcc_exec_tooldir_prefix
|
||
= concat (gcc_exec_prefix, spec_machine, dir_separator_str,
|
||
spec_version, dir_separator_str, tooldir_prefix, NULL);
|
||
|
||
add_prefix (&exec_prefixes,
|
||
concat (gcc_exec_tooldir_prefix, "bin",
|
||
dir_separator_str, NULL),
|
||
NULL, PREFIX_PRIORITY_LAST, 0, NULL);
|
||
add_prefix (&startfile_prefixes,
|
||
concat (gcc_exec_tooldir_prefix, "lib",
|
||
dir_separator_str, NULL),
|
||
NULL, PREFIX_PRIORITY_LAST, 0, NULL);
|
||
}
|
||
|
||
tooldir_prefix = concat (standard_exec_prefix, spec_machine,
|
||
dir_separator_str, spec_version,
|
||
dir_separator_str, tooldir_prefix, NULL);
|
||
}
|
||
|
||
#ifndef FREEBSD_NATIVE
|
||
add_prefix (&exec_prefixes,
|
||
concat (tooldir_prefix, "bin", dir_separator_str, NULL),
|
||
"BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
|
||
add_prefix (&startfile_prefixes,
|
||
concat (tooldir_prefix, "lib", dir_separator_str, NULL),
|
||
"BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
|
||
#endif /* FREEBSD_NATIVE */
|
||
|
||
/* More prefixes are enabled in main, after we read the specs file
|
||
and determine whether this is cross-compilation or not. */
|
||
|
||
/* Then create the space for the vectors and scan again. */
|
||
|
||
switches = ((struct switchstr *)
|
||
xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
|
||
infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
|
||
n_switches = 0;
|
||
n_infiles = 0;
|
||
last_language_n_infiles = -1;
|
||
|
||
/* This, time, copy the text of each switch and store a pointer
|
||
to the copy in the vector of switches.
|
||
Store all the infiles in their vector. */
|
||
|
||
#if defined(FREEBSD_NATIVE)
|
||
switch (objformat)
|
||
{
|
||
case OBJFMT_AOUT:
|
||
switches[n_switches].part1 = "maout";
|
||
switches[n_switches].args = 0;
|
||
switches[n_switches].live_cond = 0;
|
||
switches[n_switches].validated = 0;
|
||
n_switches++;
|
||
putenv("OBJFORMAT=aout");
|
||
break;
|
||
case OBJFMT_ELF:
|
||
putenv("OBJFORMAT=elf");
|
||
break;
|
||
case OBJFMT_UNKNOWN:
|
||
fatal ("object format unknown");
|
||
}
|
||
#endif
|
||
|
||
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 < sizeof modify_target / sizeof modify_target[0]; 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], "-ftarget-help"))
|
||
;
|
||
else if (! strcmp (argv[i], "-fhelp"))
|
||
;
|
||
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 = SWITCH_OK;
|
||
switches[n_switches].validated = 0;
|
||
n_switches++;
|
||
}
|
||
else if (strncmp (argv[i], "-Wl,", 4) == 0)
|
||
{
|
||
int prev, j;
|
||
/* Split the argument at commas. */
|
||
prev = 4;
|
||
for (j = 4; argv[i][j]; j++)
|
||
if (argv[i][j] == ',')
|
||
{
|
||
infiles[n_infiles].language = "*";
|
||
infiles[n_infiles++].name
|
||
= save_string (argv[i] + prev, j - prev);
|
||
prev = j + 1;
|
||
}
|
||
/* Record the part after the last comma. */
|
||
infiles[n_infiles].language = "*";
|
||
infiles[n_infiles++].name = argv[i] + prev;
|
||
}
|
||
else if (strcmp (argv[i], "-Xlinker") == 0)
|
||
{
|
||
infiles[n_infiles].language = "*";
|
||
infiles[n_infiles++].name = argv[++i];
|
||
}
|
||
else if (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], "-specs") == 0)
|
||
i++;
|
||
else if (strncmp (argv[i], "-specs=", 7) == 0)
|
||
;
|
||
else if (strcmp (argv[i], "-time") == 0)
|
||
;
|
||
else if ((save_temps_flag || report_times)
|
||
&& strcmp (argv[i], "-pipe") == 0)
|
||
{
|
||
/* -save-temps overrides -pipe, so that temp files are produced */
|
||
if (save_temps_flag)
|
||
error ("warning: -pipe ignored because -save-temps specified");
|
||
/* -time overrides -pipe because we can't get correct stats when
|
||
multiple children are running at once. */
|
||
else if (report_times)
|
||
error ("warning: -pipe ignored because -time specified");
|
||
}
|
||
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
|
||
= (const char **) xmalloc ((n_args + 1) * sizeof(const char *));
|
||
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 = (char *) xmalloc (2);
|
||
part1[0] = c;
|
||
part1[1] = '\0';
|
||
|
||
switches[n_switches].part1 = part1;
|
||
switches[n_switches].args
|
||
= (const char **) xmalloc (2 * sizeof (const char *));
|
||
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 = SWITCH_OK;
|
||
switches[n_switches].validated = 0;
|
||
switches[n_switches].ordering = 0;
|
||
/* These are always valid, since gcc.c itself understands it. */
|
||
if (!strcmp (p, "save-temps")
|
||
|| !strcmp (p, "static-libgcc")
|
||
|| !strcmp (p, "shared-libgcc"))
|
||
switches[n_switches].validated = 1;
|
||
else
|
||
{
|
||
char ch = switches[n_switches].part1[0];
|
||
if (ch == 'V' || ch == 'b' || ch == 'B')
|
||
switches[n_switches].validated = 1;
|
||
}
|
||
n_switches++;
|
||
}
|
||
else
|
||
{
|
||
#ifdef HAVE_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 (target_help_flag || print_help_list)
|
||
{
|
||
n_infiles = 1;
|
||
|
||
/* Create a dummy input file, so that we can pass --target-help on to
|
||
the various sub-processes. */
|
||
infiles[0].language = "c";
|
||
infiles[0].name = "help-dummy";
|
||
|
||
if (target_help_flag)
|
||
{
|
||
switches[n_switches].part1 = "--target-help";
|
||
switches[n_switches].args = 0;
|
||
switches[n_switches].live_cond = SWITCH_OK;
|
||
switches[n_switches].validated = 0;
|
||
|
||
n_switches++;
|
||
}
|
||
|
||
if (print_help_list)
|
||
{
|
||
switches[n_switches].part1 = "--help";
|
||
switches[n_switches].args = 0;
|
||
switches[n_switches].live_cond = SWITCH_OK;
|
||
switches[n_switches].validated = 0;
|
||
|
||
n_switches++;
|
||
}
|
||
}
|
||
|
||
switches[n_switches].part1 = 0;
|
||
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 ()
|
||
{
|
||
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)
|
||
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);
|
||
putenv (obstack_finish (&collect_obstack));
|
||
}
|
||
|
||
/* Process a spec string, accumulating and running commands. */
|
||
|
||
/* These variables describe the input file name.
|
||
input_file_number is the index on outfiles of this file,
|
||
so that the output file name can be stored for later use by %o.
|
||
input_basename is the start of the part of the input file
|
||
sans all directory names, and basename_length is the number
|
||
of characters starting there excluding the suffix .c or whatever. */
|
||
|
||
const char *input_filename;
|
||
static int input_file_number;
|
||
size_t input_filename_length;
|
||
static int basename_length;
|
||
static int suffixed_basename_length;
|
||
static const char *input_basename;
|
||
static const char *input_suffix;
|
||
static struct stat input_stat;
|
||
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;
|
||
|
||
/* Process the spec SPEC and run the commands specified therein.
|
||
Returns 0 if the spec is successfully processed; -1 if failed. */
|
||
|
||
int
|
||
do_spec (spec)
|
||
const char *spec;
|
||
{
|
||
int value;
|
||
|
||
clear_args ();
|
||
arg_going = 0;
|
||
delete_this_arg = 0;
|
||
this_is_output_file = 0;
|
||
this_is_library_file = 0;
|
||
input_from_pipe = 0;
|
||
suffix_subst = NULL;
|
||
|
||
value = do_spec_1 (spec, 0, NULL);
|
||
|
||
/* 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;
|
||
}
|
||
|
||
/* Process the sub-spec SPEC as a portion of a larger spec.
|
||
This is like processing a whole spec except that we do
|
||
not initialize at the beginning and we do not supply a
|
||
newline by default at the end.
|
||
INSWITCH nonzero means don't process %-sequences in SPEC;
|
||
in this case, % is treated as an ordinary character.
|
||
This is used while substituting switches.
|
||
INSWITCH nonzero also causes SPC not to terminate an argument.
|
||
|
||
Value is zero unless a line was finished
|
||
and the command on that line reported an error. */
|
||
|
||
static int
|
||
do_spec_1 (spec, inswitch, soft_matched_part)
|
||
const char *spec;
|
||
int inswitch;
|
||
const char *soft_matched_part;
|
||
{
|
||
const char *p = spec;
|
||
int c;
|
||
int i;
|
||
const char *string;
|
||
int value;
|
||
|
||
while ((c = *p++))
|
||
/* If substituting a switch, treat all chars like letters.
|
||
Otherwise, NL, SPC, TAB and % are special. */
|
||
switch (inswitch ? 'a' : c)
|
||
{
|
||
case '\n':
|
||
/* End of line: finish any pending argument,
|
||
then run the pending command if one has been started. */
|
||
if (arg_going)
|
||
{
|
||
obstack_1grow (&obstack, 0);
|
||
string = obstack_finish (&obstack);
|
||
if (this_is_library_file)
|
||
string = find_file (string);
|
||
store_arg (string, delete_this_arg, this_is_output_file);
|
||
if (this_is_output_file)
|
||
outfiles[input_file_number] = string;
|
||
}
|
||
arg_going = 0;
|
||
|
||
if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
|
||
{
|
||
for (i = 0; i < n_switches; i++)
|
||
if (!strcmp (switches[i].part1, "pipe"))
|
||
break;
|
||
|
||
/* A `|' before the newline means use a pipe here,
|
||
but only if -pipe was specified.
|
||
Otherwise, execute now and don't pass the `|' as an arg. */
|
||
if (i < n_switches)
|
||
{
|
||
input_from_pipe = 1;
|
||
switches[i].validated = 1;
|
||
break;
|
||
}
|
||
else
|
||
argbuf_index--;
|
||
}
|
||
|
||
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 any pending argument. */
|
||
if (arg_going)
|
||
{
|
||
obstack_1grow (&obstack, 0);
|
||
string = obstack_finish (&obstack);
|
||
if (this_is_library_file)
|
||
string = find_file (string);
|
||
store_arg (string, delete_this_arg, this_is_output_file);
|
||
if (this_is_output_file)
|
||
outfiles[input_file_number] = string;
|
||
}
|
||
|
||
/* Use pipe */
|
||
obstack_1grow (&obstack, c);
|
||
arg_going = 1;
|
||
break;
|
||
|
||
case '\t':
|
||
case ' ':
|
||
/* Space or tab ends an argument if one is pending. */
|
||
if (arg_going)
|
||
{
|
||
obstack_1grow (&obstack, 0);
|
||
string = obstack_finish (&obstack);
|
||
if (this_is_library_file)
|
||
string = find_file (string);
|
||
store_arg (string, delete_this_arg, this_is_output_file);
|
||
if (this_is_output_file)
|
||
outfiles[input_file_number] = string;
|
||
}
|
||
/* Reinitialize for a new argument. */
|
||
arg_going = 0;
|
||
delete_this_arg = 0;
|
||
this_is_output_file = 0;
|
||
this_is_library_file = 0;
|
||
break;
|
||
|
||
case '%':
|
||
switch (c = *p++)
|
||
{
|
||
case 0:
|
||
fatal ("invalid specification! Bug in cc");
|
||
|
||
case 'b':
|
||
obstack_grow (&obstack, input_basename, basename_length);
|
||
arg_going = 1;
|
||
break;
|
||
|
||
case '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 prefix_list *pl = startfile_prefixes.plist;
|
||
size_t bufsize = 100;
|
||
char *buffer = (char *) xmalloc (bufsize);
|
||
int idx;
|
||
|
||
for (; pl; pl = pl->next)
|
||
{
|
||
#ifdef RELATIVE_PREFIX_NOT_LINKDIR
|
||
/* Used on systems which record the specified -L dirs
|
||
and use them to search for dynamic linking. */
|
||
/* Relative directories always come from -B,
|
||
and it is better not to use them for searching
|
||
at run time. In particular, stage1 loses. */
|
||
if (!IS_ABSOLUTE_PATHNAME (pl->prefix))
|
||
continue;
|
||
#endif
|
||
/* Try subdirectory if there is one. */
|
||
if (multilib_dir != NULL)
|
||
{
|
||
if (machine_suffix)
|
||
{
|
||
if (strlen (pl->prefix) + strlen (machine_suffix)
|
||
>= bufsize)
|
||
bufsize = (strlen (pl->prefix)
|
||
+ strlen (machine_suffix)) * 2 + 1;
|
||
buffer = (char *) xrealloc (buffer, bufsize);
|
||
strcpy (buffer, pl->prefix);
|
||
strcat (buffer, machine_suffix);
|
||
if (is_directory (buffer, multilib_dir, 1))
|
||
{
|
||
do_spec_1 ("-L", 0, NULL);
|
||
#ifdef SPACE_AFTER_L_OPTION
|
||
do_spec_1 (" ", 0, NULL);
|
||
#endif
|
||
do_spec_1 (buffer, 1, NULL);
|
||
do_spec_1 (multilib_dir, 1, NULL);
|
||
/* Make this a separate argument. */
|
||
do_spec_1 (" ", 0, NULL);
|
||
}
|
||
}
|
||
if (!pl->require_machine_suffix)
|
||
{
|
||
if (is_directory (pl->prefix, multilib_dir, 1))
|
||
{
|
||
do_spec_1 ("-L", 0, NULL);
|
||
#ifdef SPACE_AFTER_L_OPTION
|
||
do_spec_1 (" ", 0, NULL);
|
||
#endif
|
||
do_spec_1 (pl->prefix, 1, NULL);
|
||
do_spec_1 (multilib_dir, 1, NULL);
|
||
/* Make this a separate argument. */
|
||
do_spec_1 (" ", 0, NULL);
|
||
}
|
||
}
|
||
}
|
||
if (machine_suffix)
|
||
{
|
||
if (is_directory (pl->prefix, machine_suffix, 1))
|
||
{
|
||
do_spec_1 ("-L", 0, NULL);
|
||
#ifdef SPACE_AFTER_L_OPTION
|
||
do_spec_1 (" ", 0, NULL);
|
||
#endif
|
||
do_spec_1 (pl->prefix, 1, NULL);
|
||
/* Remove slash from machine_suffix. */
|
||
if (strlen (machine_suffix) >= bufsize)
|
||
bufsize = strlen (machine_suffix) * 2 + 1;
|
||
buffer = (char *) xrealloc (buffer, bufsize);
|
||
strcpy (buffer, machine_suffix);
|
||
idx = strlen (buffer);
|
||
if (IS_DIR_SEPARATOR (buffer[idx - 1]))
|
||
buffer[idx - 1] = 0;
|
||
do_spec_1 (buffer, 1, NULL);
|
||
/* Make this a separate argument. */
|
||
do_spec_1 (" ", 0, NULL);
|
||
}
|
||
}
|
||
if (!pl->require_machine_suffix)
|
||
{
|
||
if (is_directory (pl->prefix, "", 1))
|
||
{
|
||
do_spec_1 ("-L", 0, NULL);
|
||
#ifdef SPACE_AFTER_L_OPTION
|
||
do_spec_1 (" ", 0, NULL);
|
||
#endif
|
||
/* Remove slash from pl->prefix. */
|
||
if (strlen (pl->prefix) >= bufsize)
|
||
bufsize = strlen (pl->prefix) * 2 + 1;
|
||
buffer = (char *) xrealloc (buffer, bufsize);
|
||
strcpy (buffer, pl->prefix);
|
||
idx = strlen (buffer);
|
||
if (IS_DIR_SEPARATOR (buffer[idx - 1]))
|
||
buffer[idx - 1] = 0;
|
||
do_spec_1 (buffer, 1, NULL);
|
||
/* Make this a separate argument. */
|
||
do_spec_1 (" ", 0, NULL);
|
||
}
|
||
}
|
||
}
|
||
free (buffer);
|
||
}
|
||
break;
|
||
|
||
case 'e':
|
||
/* %efoo means report an error with `foo' as error message
|
||
and don't execute any more commands for this file. */
|
||
{
|
||
const char *q = p;
|
||
char *buf;
|
||
while (*p != 0 && *p != '\n')
|
||
p++;
|
||
buf = (char *) alloca (p - q + 1);
|
||
strncpy (buf, q, p - q);
|
||
buf[p - q] = 0;
|
||
error ("%s", buf);
|
||
return -1;
|
||
}
|
||
break;
|
||
case 'n':
|
||
/* %nfoo means report an 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, fall through and 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;
|
||
}
|
||
}
|
||
case 'g':
|
||
case 'u':
|
||
case 'U':
|
||
{
|
||
struct temp_name *t;
|
||
int suffix_length;
|
||
const char *suffix = p;
|
||
char *saved_suffix = NULL;
|
||
|
||
while (*p == '.' || ISALPHA ((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 == '.' || ISALPHA ((unsigned char) *p))
|
||
abort ();
|
||
if (suffix_length == 0)
|
||
suffix = TARGET_OBJECT_SUFFIX;
|
||
else
|
||
{
|
||
saved_suffix
|
||
= (char *) xmalloc (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)
|
||
{
|
||
temp_filename_length = basename_length + suffix_length;
|
||
temp_filename = alloca (temp_filename_length + 1);
|
||
strncpy ((char *) temp_filename, input_basename, basename_length);
|
||
strncpy ((char *) temp_filename + basename_length, suffix,
|
||
suffix_length);
|
||
*((char *) temp_filename + temp_filename_length) = '\0';
|
||
if (strcmp (temp_filename, input_filename) != 0)
|
||
{
|
||
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)
|
||
{
|
||
temp_filename = save_string (temp_filename,
|
||
temp_filename_length + 1);
|
||
obstack_grow (&obstack, temp_filename,
|
||
temp_filename_length);
|
||
arg_going = 1;
|
||
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 != 'g'))
|
||
break;
|
||
|
||
/* Make a new association if needed. %u and %j
|
||
require one. */
|
||
if (t == 0 || c == 'u' || c == 'j')
|
||
{
|
||
if (t == 0)
|
||
{
|
||
t = (struct temp_name *) xmalloc (sizeof (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 != 'g');
|
||
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':
|
||
obstack_grow (&obstack, input_filename, input_filename_length);
|
||
arg_going = 1;
|
||
break;
|
||
|
||
case 'I':
|
||
{
|
||
struct prefix_list *pl = include_prefixes.plist;
|
||
|
||
if (gcc_exec_prefix)
|
||
{
|
||
do_spec_1 ("-iprefix", 1, NULL);
|
||
/* Make this a separate argument. */
|
||
do_spec_1 (" ", 0, NULL);
|
||
do_spec_1 (gcc_exec_prefix, 1, NULL);
|
||
do_spec_1 (" ", 0, NULL);
|
||
}
|
||
|
||
for (; pl; pl = pl->next)
|
||
{
|
||
do_spec_1 ("-isystem", 1, NULL);
|
||
/* Make this a separate argument. */
|
||
do_spec_1 (" ", 0, NULL);
|
||
do_spec_1 (pl->prefix, 1, NULL);
|
||
do_spec_1 (" ", 0, NULL);
|
||
}
|
||
}
|
||
break;
|
||
|
||
case 'o':
|
||
{
|
||
int max = n_infiles;
|
||
max += lang_specific_extra_outfiles;
|
||
|
||
for (i = 0; i < max; i++)
|
||
if (outfiles[i])
|
||
store_arg (outfiles[i], 0, 0);
|
||
break;
|
||
}
|
||
|
||
case 'O':
|
||
obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
|
||
arg_going = 1;
|
||
break;
|
||
|
||
case 's':
|
||
this_is_library_file = 1;
|
||
break;
|
||
|
||
case 'w':
|
||
this_is_output_file = 1;
|
||
break;
|
||
|
||
case 'W':
|
||
{
|
||
int cur_index = argbuf_index;
|
||
/* Handle the {...} following the %W. */
|
||
if (*p != '{')
|
||
abort ();
|
||
p = handle_braces (p + 1);
|
||
if (p == 0)
|
||
return -1;
|
||
/* If any args were output, mark the last one for deletion
|
||
on failure. */
|
||
if (argbuf_index != cur_index)
|
||
record_temp_file (argbuf[argbuf_index - 1], 0, 1);
|
||
break;
|
||
}
|
||
|
||
/* %x{OPTION} records OPTION for %X to output. */
|
||
case 'x':
|
||
{
|
||
const char *p1 = p;
|
||
char *string;
|
||
|
||
/* Skip past the option value and make a copy. */
|
||
if (*p != '{')
|
||
abort ();
|
||
while (*p++ != '}')
|
||
;
|
||
string = save_string (p1 + 1, p - p1 - 2);
|
||
|
||
/* See if we already recorded this option. */
|
||
for (i = 0; i < n_linker_options; i++)
|
||
if (! strcmp (string, linker_options[i]))
|
||
{
|
||
free (string);
|
||
return 0;
|
||
}
|
||
|
||
/* This option is new; add it. */
|
||
add_linker_option (string, strlen (string));
|
||
}
|
||
break;
|
||
|
||
/* Dump out the options accumulated previously using %x. */
|
||
case 'X':
|
||
for (i = 0; i < n_linker_options; i++)
|
||
{
|
||
do_spec_1 (linker_options[i], 1, NULL);
|
||
/* 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 'M':
|
||
if (multilib_dir && strcmp (multilib_dir, ".") != 0)
|
||
{
|
||
char *p;
|
||
const char *q;
|
||
size_t len;
|
||
|
||
len = strlen (multilib_dir);
|
||
obstack_blank (&obstack, len + 1);
|
||
p = obstack_next_free (&obstack) - (len + 1);
|
||
|
||
*p++ = '_';
|
||
for (q = multilib_dir; *q ; ++q, ++p)
|
||
*p = (IS_DIR_SEPARATOR (*q) ? '_' : *q);
|
||
}
|
||
break;
|
||
|
||
case 'p':
|
||
{
|
||
char *x = (char *) alloca (strlen (cpp_predefines) + 1);
|
||
char *buf = x;
|
||
const char *y;
|
||
|
||
/* Copy all of the -D options in CPP_PREDEFINES into BUF. */
|
||
y = cpp_predefines;
|
||
while (*y != 0)
|
||
{
|
||
if (! strncmp (y, "-D", 2))
|
||
/* Copy the whole option. */
|
||
while (*y && *y != ' ' && *y != '\t')
|
||
*x++ = *y++;
|
||
else if (*y == ' ' || *y == '\t')
|
||
/* Copy whitespace to the result. */
|
||
*x++ = *y++;
|
||
/* Don't copy other options. */
|
||
else
|
||
y++;
|
||
}
|
||
|
||
*x = 0;
|
||
|
||
value = do_spec_1 (buf, 0, NULL);
|
||
if (value != 0)
|
||
return value;
|
||
}
|
||
break;
|
||
|
||
case 'P':
|
||
{
|
||
char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
|
||
char *buf = x;
|
||
const char *y;
|
||
|
||
/* Copy all of CPP_PREDEFINES into BUF,
|
||
but force them all into the reserved name space if they
|
||
aren't already there. The reserved name space is all
|
||
identifiers beginning with two underscores or with one
|
||
underscore and a capital letter. We do the forcing by
|
||
adding up to two underscores to the beginning and end
|
||
of each symbol. e.g. mips, _mips, mips_, and _mips_ all
|
||
become __mips__. */
|
||
y = cpp_predefines;
|
||
while (*y != 0)
|
||
{
|
||
if (! strncmp (y, "-D", 2))
|
||
{
|
||
int flag = 0;
|
||
|
||
*x++ = *y++;
|
||
*x++ = *y++;
|
||
|
||
if (*y != '_'
|
||
|| (*(y + 1) != '_'
|
||
&& ! ISUPPER ((unsigned char) *(y + 1))))
|
||
{
|
||
/* Stick __ at front of macro name. */
|
||
if (*y != '_')
|
||
*x++ = '_';
|
||
*x++ = '_';
|
||
/* Arrange to stick __ at the end as well. */
|
||
flag = 1;
|
||
}
|
||
|
||
/* Copy the macro name. */
|
||
while (*y && *y != '=' && *y != ' ' && *y != '\t')
|
||
*x++ = *y++;
|
||
|
||
if (flag)
|
||
{
|
||
if (x[-1] != '_')
|
||
{
|
||
if (x[-2] != '_')
|
||
*x++ = '_';
|
||
*x++ = '_';
|
||
}
|
||
}
|
||
|
||
/* Copy the value given, if any. */
|
||
while (*y && *y != ' ' && *y != '\t')
|
||
*x++ = *y++;
|
||
}
|
||
else if (*y == ' ' || *y == '\t')
|
||
/* Copy whitespace to the result. */
|
||
*x++ = *y++;
|
||
/* Don't copy -A options */
|
||
else
|
||
y++;
|
||
}
|
||
*x++ = ' ';
|
||
|
||
/* Copy all of CPP_PREDEFINES into BUF,
|
||
but put __ after every -D. */
|
||
y = cpp_predefines;
|
||
while (*y != 0)
|
||
{
|
||
if (! strncmp (y, "-D", 2))
|
||
{
|
||
y += 2;
|
||
|
||
if (*y != '_'
|
||
|| (*(y + 1) != '_'
|
||
&& ! ISUPPER ((unsigned char) *(y + 1))))
|
||
{
|
||
/* Stick -D__ at front of macro name. */
|
||
*x++ = '-';
|
||
*x++ = 'D';
|
||
if (*y != '_')
|
||
*x++ = '_';
|
||
*x++ = '_';
|
||
|
||
/* Copy the macro name. */
|
||
while (*y && *y != '=' && *y != ' ' && *y != '\t')
|
||
*x++ = *y++;
|
||
|
||
/* Copy the value given, if any. */
|
||
while (*y && *y != ' ' && *y != '\t')
|
||
*x++ = *y++;
|
||
}
|
||
else
|
||
{
|
||
/* Do not copy this macro - we have just done it before */
|
||
while (*y && *y != ' ' && *y != '\t')
|
||
y++;
|
||
}
|
||
}
|
||
else if (*y == ' ' || *y == '\t')
|
||
/* Copy whitespace to the result. */
|
||
*x++ = *y++;
|
||
/* Don't copy -A options. */
|
||
else
|
||
y++;
|
||
}
|
||
*x++ = ' ';
|
||
|
||
/* Copy all of the -A options in CPP_PREDEFINES into BUF. */
|
||
y = cpp_predefines;
|
||
while (*y != 0)
|
||
{
|
||
if (! strncmp (y, "-A", 2))
|
||
/* Copy the whole option. */
|
||
while (*y && *y != ' ' && *y != '\t')
|
||
*x++ = *y++;
|
||
else if (*y == ' ' || *y == '\t')
|
||
/* Copy whitespace to the result. */
|
||
*x++ = *y++;
|
||
/* Don't copy other options. */
|
||
else
|
||
y++;
|
||
}
|
||
|
||
*x = 0;
|
||
|
||
value = do_spec_1 (buf, 0, NULL);
|
||
if (value != 0)
|
||
return value;
|
||
}
|
||
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 '%':
|
||
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;
|
||
|
||
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:%*}'. ie 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;
|
||
|
||
case 'v':
|
||
{
|
||
int c1 = *p++; /* Select first or second version number. */
|
||
const char *v = compiler_version;
|
||
const char *q;
|
||
static const char zeroc = '0';
|
||
|
||
/* The format of the version string is
|
||
([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
|
||
|
||
/* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
|
||
while (! ISDIGIT (*v))
|
||
v++;
|
||
if (v > compiler_version && v[-1] != '-')
|
||
abort ();
|
||
|
||
/* If desired, advance to second version number. */
|
||
if (c1 >= '2')
|
||
{
|
||
/* Set V after the first period. */
|
||
while (ISDIGIT (*v))
|
||
v++;
|
||
if (*v != '.')
|
||
abort ();
|
||
v++;
|
||
}
|
||
|
||
/* If desired, advance to third version number.
|
||
But don't complain if it's not present */
|
||
if (c1 == '3')
|
||
{
|
||
/* Set V after the second period. */
|
||
while (ISDIGIT (*v))
|
||
v++;
|
||
if ((*v != 0) && (*v != ' ') && (*v != '.') && (*v != '-'))
|
||
abort ();
|
||
if (*v != 0)
|
||
v++;
|
||
}
|
||
|
||
/* Set Q at the next period or at the end. */
|
||
q = v;
|
||
while (ISDIGIT (*q))
|
||
q++;
|
||
if (*q != 0 && q > v && *q != ' ' && *q != '.' && *q != '-')
|
||
abort ();
|
||
|
||
if (q > v)
|
||
/* Put that part into the command. */
|
||
obstack_grow (&obstack, v, q - v);
|
||
else
|
||
/* Default to "0" */
|
||
obstack_grow (&obstack, &zeroc, 1);
|
||
arg_going = 1;
|
||
}
|
||
break;
|
||
|
||
case '|':
|
||
if (input_from_pipe)
|
||
do_spec_1 ("-", 0, NULL);
|
||
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. */
|
||
return 0;
|
||
}
|
||
|
||
/* Return 0 if we call do_spec_1 and that returns -1. */
|
||
|
||
static const char *
|
||
handle_braces (p)
|
||
const char *p;
|
||
{
|
||
const char *filter, *body = NULL, *endbody = NULL;
|
||
int pipe_p = 0;
|
||
int true_once = 0; /* If, in %{a|b:d}, at least one of a,b was seen. */
|
||
int negate;
|
||
int suffix;
|
||
int include_blanks = 1;
|
||
int elide_switch = 0;
|
||
int ordered = 0;
|
||
|
||
if (*p == '^')
|
||
{
|
||
/* A '^' after the open-brace means to not give blanks before args. */
|
||
include_blanks = 0;
|
||
++p;
|
||
}
|
||
|
||
if (*p == '|')
|
||
{
|
||
/* A `|' after the open-brace means,
|
||
if the test fails, output a single minus sign rather than nothing.
|
||
This is used in %{|!pipe:...}. */
|
||
pipe_p = 1;
|
||
++p;
|
||
}
|
||
|
||
if (*p == '<')
|
||
{
|
||
/* A `<' after the open-brace means that the switch should be
|
||
removed from the command-line. */
|
||
elide_switch = 1;
|
||
++p;
|
||
}
|
||
|
||
next_member:
|
||
negate = suffix = 0;
|
||
|
||
if (*p == '!')
|
||
/* A `!' after the open-brace negates the condition:
|
||
succeed if the specified switch is not present. */
|
||
negate = 1, ++p;
|
||
|
||
if (*p == '.')
|
||
/* A `.' after the open-brace means test against the current suffix. */
|
||
{
|
||
if (pipe_p)
|
||
abort ();
|
||
|
||
suffix = 1;
|
||
++p;
|
||
}
|
||
|
||
if (elide_switch && (negate || pipe_p || suffix))
|
||
{
|
||
/* It doesn't make sense to mix elision with other flags. We
|
||
could fatal() here, but the standard seems to be to abort. */
|
||
abort ();
|
||
}
|
||
|
||
next_ampersand:
|
||
filter = p;
|
||
while (*p != ':' && *p != '}' && *p != '|' && *p != '&')
|
||
p++;
|
||
|
||
if (*p == '|' && (pipe_p || ordered))
|
||
abort ();
|
||
|
||
if (!body)
|
||
{
|
||
if (*p != '}' && *p != '&')
|
||
{
|
||
int count = 1;
|
||
const char *q = p;
|
||
|
||
while (*q++ != ':')
|
||
continue;
|
||
body = q;
|
||
|
||
while (count > 0)
|
||
{
|
||
if (*q == '{')
|
||
count++;
|
||
else if (*q == '}')
|
||
count--;
|
||
else if (*q == 0)
|
||
fatal ("mismatched braces in specs");
|
||
q++;
|
||
}
|
||
endbody = q;
|
||
}
|
||
else
|
||
body = p, endbody = p + 1;
|
||
}
|
||
|
||
if (suffix)
|
||
{
|
||
int found = (input_suffix != 0
|
||
&& (long) strlen (input_suffix) == (long) (p - filter)
|
||
&& strncmp (input_suffix, filter, p - filter) == 0);
|
||
|
||
if (body[0] == '}')
|
||
abort ();
|
||
|
||
if (negate != found
|
||
&& do_spec_1 (save_string (body, endbody-body-1), 0, NULL) < 0)
|
||
return 0;
|
||
}
|
||
else if (p[-1] == '*' && (p[0] == '}' || p[0] == '&'))
|
||
{
|
||
/* Substitute all matching switches as separate args. */
|
||
int i;
|
||
|
||
for (i = 0; i < n_switches; i++)
|
||
if (!strncmp (switches[i].part1, filter, p - 1 - filter)
|
||
&& check_live_switch (i, p - 1 - filter))
|
||
{
|
||
if (elide_switch)
|
||
{
|
||
switches[i].live_cond = SWITCH_IGNORE;
|
||
switches[i].validated = 1;
|
||
}
|
||
else
|
||
ordered = 1, switches[i].ordering = 1;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
/* Test for presence of the specified switch. */
|
||
int i;
|
||
int present = 0;
|
||
|
||
/* If name specified ends in *, as in {x*:...},
|
||
check for %* and handle that case. */
|
||
if (p[-1] == '*' && !negate)
|
||
{
|
||
int substitution;
|
||
const char *r = body;
|
||
|
||
/* First see whether we have %*. */
|
||
substitution = 0;
|
||
while (r < endbody)
|
||
{
|
||
if (*r == '%' && r[1] == '*')
|
||
substitution = 1;
|
||
r++;
|
||
}
|
||
/* If we do, handle that case. */
|
||
if (substitution)
|
||
{
|
||
/* Substitute all matching switches as separate args.
|
||
But do this by substituting for %*
|
||
in the text that follows the colon. */
|
||
|
||
unsigned hard_match_len = p - filter - 1;
|
||
char *string = save_string (body, endbody - body - 1);
|
||
|
||
for (i = 0; i < n_switches; i++)
|
||
if (!strncmp (switches[i].part1, filter, hard_match_len)
|
||
&& check_live_switch (i, -1))
|
||
{
|
||
do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
|
||
/* Pass any arguments this switch has. */
|
||
give_switch (i, 1, 1);
|
||
suffix_subst = NULL;
|
||
}
|
||
|
||
/* We didn't match. Try again. */
|
||
if (*p++ == '|')
|
||
goto next_member;
|
||
return endbody;
|
||
}
|
||
}
|
||
|
||
/* If name specified ends in *, as in {x*:...},
|
||
check for presence of any switch name starting with x. */
|
||
if (p[-1] == '*')
|
||
{
|
||
for (i = 0; i < n_switches; i++)
|
||
{
|
||
unsigned hard_match_len = p - filter - 1;
|
||
|
||
if (!strncmp (switches[i].part1, filter, hard_match_len)
|
||
&& check_live_switch (i, hard_match_len))
|
||
{
|
||
present = 1;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
/* Otherwise, check for presence of exact name specified. */
|
||
else
|
||
{
|
||
for (i = 0; i < n_switches; i++)
|
||
{
|
||
if (!strncmp (switches[i].part1, filter, p - filter)
|
||
&& switches[i].part1[p - filter] == 0
|
||
&& check_live_switch (i, -1))
|
||
{
|
||
present = 1;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
/* If it is as desired (present for %{s...}, absent for %{!s...})
|
||
then substitute either the switch or the specified
|
||
conditional text. */
|
||
if (present != negate)
|
||
{
|
||
if (elide_switch)
|
||
{
|
||
switches[i].live_cond = SWITCH_IGNORE;
|
||
switches[i].validated = 1;
|
||
}
|
||
else if (ordered || *p == '&')
|
||
ordered = 1, switches[i].ordering = 1;
|
||
else if (*p == '}')
|
||
give_switch (i, 0, include_blanks);
|
||
else
|
||
/* Even if many alternatives are matched, only output once. */
|
||
true_once = 1;
|
||
}
|
||
else if (pipe_p)
|
||
{
|
||
/* Here if a %{|...} conditional fails: output a minus sign,
|
||
which means "standard output" or "standard input". */
|
||
do_spec_1 ("-", 0, NULL);
|
||
return endbody;
|
||
}
|
||
}
|
||
|
||
/* We didn't match; try again. */
|
||
if (*p++ == '|')
|
||
goto next_member;
|
||
|
||
if (p[-1] == '&')
|
||
{
|
||
body = 0;
|
||
goto next_ampersand;
|
||
}
|
||
|
||
if (ordered)
|
||
{
|
||
int i;
|
||
/* Doing this set of switches later preserves their command-line
|
||
ordering. This is needed for e.g. -U, -D and -A. */
|
||
for (i = 0; i < n_switches; i++)
|
||
if (switches[i].ordering == 1)
|
||
{
|
||
switches[i].ordering = 0;
|
||
give_switch (i, 0, include_blanks);
|
||
}
|
||
}
|
||
/* Process the spec just once, regardless of match count. */
|
||
else if (true_once)
|
||
{
|
||
if (do_spec_1 (save_string (body, endbody - body - 1),
|
||
0, NULL) < 0)
|
||
return 0;
|
||
}
|
||
|
||
return endbody;
|
||
}
|
||
|
||
/* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
|
||
on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
|
||
spec, or -1 if either exact match or %* is used.
|
||
|
||
A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
|
||
whose value does not begin with "no-" is obsoleted by the same value
|
||
with the "no-", similarly for a switch with the "no-" prefix. */
|
||
|
||
static int
|
||
check_live_switch (switchnum, prefix_length)
|
||
int switchnum;
|
||
int prefix_length;
|
||
{
|
||
const char *name = switches[switchnum].part1;
|
||
int i;
|
||
|
||
/* In the common case of {<at-most-one-letter>*}, a negating
|
||
switch would always match, so ignore that case. We will just
|
||
send the conflicting switches to the compiler phase. */
|
||
if (prefix_length >= 0 && prefix_length <= 1)
|
||
return 1;
|
||
|
||
/* If we already processed this switch and determined if it was
|
||
live or not, return our past determination. */
|
||
if (switches[switchnum].live_cond != 0)
|
||
return switches[switchnum].live_cond > 0;
|
||
|
||
/* Now search for duplicate in a manner that depends on the name. */
|
||
switch (*name)
|
||
{
|
||
case 'O':
|
||
for (i = switchnum + 1; i < n_switches; i++)
|
||
if (switches[i].part1[0] == 'O')
|
||
{
|
||
switches[switchnum].validated = 1;
|
||
switches[switchnum].live_cond = 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.
|
||
|
||
If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
|
||
of the switch. */
|
||
|
||
static void
|
||
give_switch (switchnum, omit_first_word, include_blanks)
|
||
int switchnum;
|
||
int omit_first_word;
|
||
int include_blanks;
|
||
{
|
||
if (switches[switchnum].live_cond == SWITCH_IGNORE)
|
||
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;
|
||
|
||
if (include_blanks)
|
||
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] == '.')
|
||
{
|
||
((char *)arg)[length] = 0;
|
||
dot = 1;
|
||
break;
|
||
}
|
||
do_spec_1 (arg, 1, NULL);
|
||
if (dot)
|
||
((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 (name)
|
||
const char *name;
|
||
{
|
||
char *newname;
|
||
|
||
/* Try multilib_dir if it is defined. */
|
||
if (multilib_dir != NULL)
|
||
{
|
||
const char *const try = ACONCAT ((multilib_dir, dir_separator_str, name, NULL));
|
||
|
||
newname = find_a_file (&startfile_prefixes, try, R_OK);
|
||
|
||
/* If we don't find it in the multi library dir, then fall
|
||
through and look for it in the normal places. */
|
||
if (newname != NULL)
|
||
return newname;
|
||
}
|
||
|
||
newname = find_a_file (&startfile_prefixes, name, R_OK);
|
||
return newname ? newname : name;
|
||
}
|
||
|
||
/* Determine whether a directory exists. If LINKER, return 0 for
|
||
certain fixed names not needed by the linker. If not LINKER, it is
|
||
only important to return 0 if the host machine has a small ARG_MAX
|
||
limit. */
|
||
|
||
static int
|
||
is_directory (path1, path2, linker)
|
||
const char *path1;
|
||
const char *path2;
|
||
int linker;
|
||
{
|
||
int len1 = strlen (path1);
|
||
int len2 = strlen (path2);
|
||
char *path = (char *) alloca (3 + len1 + len2);
|
||
char *cp;
|
||
struct stat st;
|
||
|
||
#ifndef SMALL_ARG_MAX
|
||
if (! linker)
|
||
return 1;
|
||
#endif
|
||
|
||
/* Construct the path from the two parts. Ensure the string ends with "/.".
|
||
The resulting path will be a directory even if the given path is a
|
||
symbolic link. */
|
||
memcpy (path, path1, len1);
|
||
memcpy (path + len1, path2, len2);
|
||
cp = path + len1 + len2;
|
||
if (!IS_DIR_SEPARATOR (cp[-1]))
|
||
*cp++ = DIR_SEPARATOR;
|
||
*cp++ = '.';
|
||
*cp = '\0';
|
||
|
||
#ifndef FREEBSD_NATIVE
|
||
/* Exclude directories that the linker is known to search. */
|
||
if (linker
|
||
&& ((cp - path == 6
|
||
&& strcmp (path, concat (dir_separator_str, "lib",
|
||
dir_separator_str, ".", NULL)) == 0)
|
||
|| (cp - path == 10
|
||
&& strcmp (path, concat (dir_separator_str, "usr",
|
||
dir_separator_str, "lib",
|
||
dir_separator_str, ".", NULL)) == 0)))
|
||
return 0;
|
||
#endif /* FREEBSD_NATIVE */
|
||
|
||
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 (filename)
|
||
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 (signum)
|
||
int signum;
|
||
{
|
||
signal (signum, SIG_DFL);
|
||
delete_failure_queue ();
|
||
delete_temp_files ();
|
||
/* Get the same signal again, this time not handled,
|
||
so its normal effect occurs. */
|
||
kill (getpid (), signum);
|
||
}
|
||
|
||
extern int main PARAMS ((int, const char *const *));
|
||
|
||
int
|
||
main (argc, argv)
|
||
int argc;
|
||
const char *const *argv;
|
||
{
|
||
size_t i;
|
||
int value;
|
||
int linker_was_run = 0;
|
||
char *explicit_link_files;
|
||
char *specs_file;
|
||
const char *p;
|
||
struct user_specs *uptr;
|
||
|
||
p = argv[0] + strlen (argv[0]);
|
||
while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
|
||
--p;
|
||
programname = p;
|
||
|
||
xmalloc_set_program_name (programname);
|
||
|
||
#ifdef GCC_DRIVER_HOST_INITIALIZATION
|
||
/* Perform host dependent initialization when needed. */
|
||
GCC_DRIVER_HOST_INITIALIZATION;
|
||
#endif
|
||
|
||
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
|
||
|
||
argbuf_length = 10;
|
||
argbuf = (const char **) xmalloc (argbuf_length * sizeof (const char *));
|
||
|
||
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 = obstack_finish (&multilib_obstack);
|
||
|
||
q = multilib_matches_raw;
|
||
while ((p = *q++) != (char *) 0)
|
||
obstack_grow (&multilib_obstack, p, strlen (p));
|
||
|
||
obstack_1grow (&multilib_obstack, 0);
|
||
multilib_matches = obstack_finish (&multilib_obstack);
|
||
|
||
q = multilib_exclusions_raw;
|
||
while ((p = *q++) != (char *) 0)
|
||
obstack_grow (&multilib_obstack, p, strlen (p));
|
||
|
||
obstack_1grow (&multilib_obstack, 0);
|
||
multilib_exclusions = obstack_finish (&multilib_obstack);
|
||
|
||
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 = obstack_finish (&multilib_obstack);
|
||
}
|
||
|
||
/* Set up to remember the pathname of gcc and any options
|
||
needed for collect. We use argv[0] instead of programname because
|
||
we need the complete pathname. */
|
||
obstack_init (&collect_obstack);
|
||
obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
|
||
obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
|
||
putenv (obstack_finish (&collect_obstack));
|
||
|
||
#ifdef INIT_ENVIRONMENT
|
||
/* Set up any other necessary machine specific environment variables. */
|
||
putenv (INIT_ENVIRONMENT);
|
||
#endif
|
||
|
||
/* Make a table of what switches there are (switches, n_switches).
|
||
Make a table of specified input files (infiles, n_infiles).
|
||
Decode switches that are handled locally. */
|
||
|
||
process_command (argc, argv);
|
||
|
||
/* Initialize the vector of specs to just the default.
|
||
This means one element containing 0s, as a terminator. */
|
||
|
||
compilers = (struct compiler *) xmalloc (sizeof default_compilers);
|
||
memcpy ((char *) compilers, (char *) default_compilers,
|
||
sizeof default_compilers);
|
||
n_compilers = n_default_compilers;
|
||
|
||
/* Read specs from a file if there is one. */
|
||
|
||
#ifdef FREEBSD_NATIVE
|
||
just_machine_suffix = "";
|
||
#else /* FREEBSD_NATIVE */
|
||
machine_suffix = concat (spec_machine, dir_separator_str,
|
||
spec_version, dir_separator_str, NULL);
|
||
just_machine_suffix = concat (spec_machine, dir_separator_str, NULL);
|
||
#endif /* FREEBSD_NATIVE */
|
||
|
||
specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
|
||
/* Read the specs file unless it is a default one. */
|
||
if (specs_file != 0 && strcmp (specs_file, "specs"))
|
||
read_specs (specs_file, TRUE);
|
||
else
|
||
init_spec ();
|
||
|
||
/* We need to check standard_exec_prefix/just_machine_suffix/specs
|
||
for any override of as, ld and libraries. */
|
||
specs_file = (char *) alloca (strlen (FBSD_DATA_PREFIX)
|
||
+ strlen (just_machine_suffix)
|
||
+ sizeof ("specs"));
|
||
|
||
strcpy (specs_file, FBSD_DATA_PREFIX);
|
||
strcat (specs_file, just_machine_suffix);
|
||
strcat (specs_file, "specs");
|
||
if (access (specs_file, R_OK) == 0)
|
||
read_specs (specs_file, TRUE);
|
||
|
||
/* If not cross-compiling, look for startfiles in the standard places. */
|
||
if (*cross_compile == '0')
|
||
{
|
||
if (*md_exec_prefix)
|
||
{
|
||
add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
|
||
PREFIX_PRIORITY_LAST, 0, NULL);
|
||
add_prefix (&startfile_prefixes, md_exec_prefix, "GCC",
|
||
PREFIX_PRIORITY_LAST, 0, NULL);
|
||
}
|
||
|
||
if (*md_startfile_prefix)
|
||
add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC",
|
||
PREFIX_PRIORITY_LAST, 0, NULL);
|
||
|
||
if (*md_startfile_prefix_1)
|
||
add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC",
|
||
PREFIX_PRIORITY_LAST, 0, NULL);
|
||
|
||
/* If standard_startfile_prefix is relative, base it on
|
||
standard_exec_prefix. This lets us move the installed tree
|
||
as a unit. If GCC_EXEC_PREFIX is defined, base
|
||
standard_startfile_prefix on that as well. */
|
||
if (IS_ABSOLUTE_PATHNAME (standard_startfile_prefix))
|
||
add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS",
|
||
PREFIX_PRIORITY_LAST, 0, NULL);
|
||
else
|
||
{
|
||
if (gcc_exec_prefix)
|
||
add_prefix (&startfile_prefixes,
|
||
concat (gcc_exec_prefix, machine_suffix,
|
||
standard_startfile_prefix, NULL),
|
||
NULL, PREFIX_PRIORITY_LAST, 0, NULL);
|
||
add_prefix (&startfile_prefixes,
|
||
concat (standard_exec_prefix,
|
||
machine_suffix,
|
||
standard_startfile_prefix, NULL),
|
||
NULL, PREFIX_PRIORITY_LAST, 0, NULL);
|
||
}
|
||
|
||
#ifndef FREEBSD_NATIVE
|
||
add_prefix (&startfile_prefixes, standard_startfile_prefix_1,
|
||
"BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
|
||
add_prefix (&startfile_prefixes, standard_startfile_prefix_2,
|
||
"BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
|
||
#endif /* not FREEBSD_NATIVE */
|
||
#if 0 /* Can cause surprises, and one can use -B./ instead. */
|
||
add_prefix (&startfile_prefixes, "./", NULL,
|
||
PREFIX_PRIORITY_LAST, 1, NULL);
|
||
#endif
|
||
}
|
||
else
|
||
{
|
||
if (!IS_ABSOLUTE_PATHNAME (standard_startfile_prefix)
|
||
&& gcc_exec_prefix)
|
||
add_prefix (&startfile_prefixes,
|
||
concat (gcc_exec_prefix, machine_suffix,
|
||
standard_startfile_prefix, NULL),
|
||
"BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
|
||
#ifdef CROSS_STARTFILE_PREFIX
|
||
add_prefix (&startfile_prefixes, CROSS_STARTFILE_PREFIX, "BINUTILS",
|
||
PREFIX_PRIORITY_LAST, 0, NULL);
|
||
#endif
|
||
}
|
||
|
||
/* Process any user specified specs in the order given on the command
|
||
line. */
|
||
for (uptr = user_specs_head; uptr; uptr = uptr->next)
|
||
{
|
||
char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
|
||
read_specs (filename ? filename : uptr->filename, FALSE);
|
||
}
|
||
|
||
/* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
|
||
if (gcc_exec_prefix)
|
||
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"), standard_exec_prefix, machine_suffix);
|
||
printf (_("programs: %s\n"), build_search_list (&exec_prefixes, "", 0));
|
||
printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes, "", 0));
|
||
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);
|
||
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 (target_help_flag)
|
||
{
|
||
/* Print if any target specific options. */
|
||
|
||
/* We do not exit here. Instead we have created a fake input file
|
||
called 'target-dummy' which needs to be compiled, and we pass this
|
||
on to the various sub-processes, along with the --target-help
|
||
switch. */
|
||
}
|
||
|
||
if (print_help_list)
|
||
{
|
||
display_help ();
|
||
|
||
if (! verbose_flag)
|
||
{
|
||
printf (_("\nFor bug reporting instructions, please see:\n"));
|
||
printf ("%s.\n", GCCBUGURL);
|
||
|
||
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. */
|
||
}
|
||
|
||
if (verbose_flag)
|
||
{
|
||
int n;
|
||
const char *thrmod;
|
||
|
||
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 = obstack_finish (&obstack);
|
||
#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\n", version_string);
|
||
else
|
||
notice ("gcc driver version %s executing gcc version %s\n",
|
||
version_string, compiler_version);
|
||
|
||
if (n_infiles == 0)
|
||
return (0);
|
||
}
|
||
|
||
if (n_infiles == added_libraries)
|
||
fatal ("No input files specified");
|
||
|
||
/* Make a place to record the compiler output file names
|
||
that correspond to the input files. */
|
||
|
||
i = n_infiles;
|
||
i += lang_specific_extra_outfiles;
|
||
outfiles = (const char **) xcalloc (i, sizeof (char *));
|
||
|
||
/* Record which files were specified explicitly as link input. */
|
||
|
||
explicit_link_files = xcalloc (1, n_infiles);
|
||
|
||
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);
|
||
|
||
/* Use the same thing in %o, unless cp->spec says otherwise. */
|
||
|
||
outfiles[i] = input_filename;
|
||
|
||
/* Figure out which compiler from the file's suffix. */
|
||
|
||
input_file_compiler
|
||
= lookup_compiler (infiles[i].name, input_filename_length,
|
||
infiles[i].language);
|
||
|
||
if (input_file_compiler)
|
||
{
|
||
/* Ok, we found an applicable compiler. Run its spec. */
|
||
|
||
if (input_file_compiler->spec[0] == '#')
|
||
{
|
||
error ("%s: %s compiler not installed on this system",
|
||
input_filename, &input_file_compiler->spec[1]);
|
||
this_file_error = 1;
|
||
}
|
||
else
|
||
{
|
||
value = do_spec (input_file_compiler->spec);
|
||
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 output file name to the first input file name, for use
|
||
with %b in LINK_SPEC on a target that prefers not to emit a.out
|
||
by default. */
|
||
if (n_infiles > 0)
|
||
set_input (infiles[0].name);
|
||
|
||
if (error_count == 0)
|
||
{
|
||
/* Make sure INPUT_FILE_NUMBER points to first available open
|
||
slot. */
|
||
input_file_number = n_infiles;
|
||
if (lang_specific_pre_link ())
|
||
error_count++;
|
||
}
|
||
|
||
/* Run ld to link all the compiler output files. */
|
||
|
||
if (error_count == 0)
|
||
{
|
||
int tmp = execution_count;
|
||
|
||
/* We'll use ld if we can't find collect2. */
|
||
if (! strcmp (linker_name_spec, "collect2"))
|
||
{
|
||
char *s = find_a_file (&exec_prefixes, "collect2", X_OK);
|
||
if (s == NULL)
|
||
linker_name_spec = "ld";
|
||
}
|
||
/* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
|
||
for collect. */
|
||
putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH");
|
||
putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV);
|
||
|
||
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])
|
||
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", GCCBUGURL);
|
||
}
|
||
|
||
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 (name, length, language)
|
||
const char *name;
|
||
size_t length;
|
||
const char *language;
|
||
{
|
||
struct compiler *cp;
|
||
|
||
/* If this was specified by the user to be a linker input, indicate that. */
|
||
if (language != 0 && language[0] == '*')
|
||
return 0;
|
||
|
||
/* Otherwise, look for the language, if one is spec'd. */
|
||
if (language != 0)
|
||
{
|
||
for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
|
||
if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
|
||
return cp;
|
||
|
||
error ("language %s not recognized", language);
|
||
return 0;
|
||
}
|
||
|
||
/* Look for a suffix. */
|
||
for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
|
||
{
|
||
if (/* The suffix `-' matches only the file name `-'. */
|
||
(!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
|
||
|| (strlen (cp->suffix) < length
|
||
/* See if the suffix matches the end of NAME. */
|
||
&& !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 (s, len)
|
||
const char *s;
|
||
int len;
|
||
{
|
||
char *result = xmalloc (len + 1);
|
||
|
||
memcpy (result, s, len);
|
||
result[len] = 0;
|
||
return result;
|
||
}
|
||
|
||
void
|
||
pfatal_with_name (name)
|
||
const char *name;
|
||
{
|
||
perror_with_name (name);
|
||
delete_temp_files ();
|
||
exit (1);
|
||
}
|
||
|
||
static void
|
||
perror_with_name (name)
|
||
const char *name;
|
||
{
|
||
error ("%s: %s", name, xstrerror (errno));
|
||
}
|
||
|
||
static void
|
||
pfatal_pexecute (errmsg_fmt, errmsg_arg)
|
||
const char *errmsg_fmt;
|
||
const char *errmsg_arg;
|
||
{
|
||
if (errmsg_arg)
|
||
{
|
||
int save_errno = errno;
|
||
|
||
/* Space for trailing '\0' is in %s. */
|
||
char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
|
||
sprintf (msg, errmsg_fmt, errmsg_arg);
|
||
errmsg_fmt = msg;
|
||
|
||
errno = save_errno;
|
||
}
|
||
|
||
pfatal_with_name (errmsg_fmt);
|
||
}
|
||
|
||
/* Output an error message and exit */
|
||
|
||
void
|
||
fancy_abort ()
|
||
{
|
||
fatal ("internal gcc abort");
|
||
}
|
||
|
||
/* Output an error message and exit */
|
||
|
||
void
|
||
fatal VPARAMS ((const char *msgid, ...))
|
||
{
|
||
VA_OPEN (ap, msgid);
|
||
VA_FIXEDARG (ap, const char *, msgid);
|
||
|
||
fprintf (stderr, "%s: ", programname);
|
||
vfprintf (stderr, _(msgid), ap);
|
||
VA_CLOSE (ap);
|
||
fprintf (stderr, "\n");
|
||
delete_temp_files ();
|
||
exit (1);
|
||
}
|
||
|
||
void
|
||
error VPARAMS ((const char *msgid, ...))
|
||
{
|
||
VA_OPEN (ap, msgid);
|
||
VA_FIXEDARG (ap, const char *, msgid);
|
||
|
||
fprintf (stderr, "%s: ", programname);
|
||
vfprintf (stderr, _(msgid), ap);
|
||
VA_CLOSE (ap);
|
||
|
||
fprintf (stderr, "\n");
|
||
}
|
||
|
||
static void
|
||
notice VPARAMS ((const char *msgid, ...))
|
||
{
|
||
VA_OPEN (ap, msgid);
|
||
VA_FIXEDARG (ap, const char *, msgid);
|
||
|
||
vfprintf (stderr, _(msgid), ap);
|
||
VA_CLOSE (ap);
|
||
}
|
||
|
||
static void
|
||
validate_all_switches ()
|
||
{
|
||
struct compiler *comp;
|
||
const char *p;
|
||
char c;
|
||
struct spec_list *spec;
|
||
|
||
for (comp = compilers; comp->spec; comp++)
|
||
{
|
||
p = comp->spec;
|
||
while ((c = *p++))
|
||
if (c == '%' && (*p == '{' || (*p == 'W' && *++p == '{')))
|
||
/* We have a switch spec. */
|
||
validate_switches (p + 1);
|
||
}
|
||
|
||
/* Look through the linked list of specs read from the specs file. */
|
||
for (spec = specs; spec; spec = spec->next)
|
||
{
|
||
p = *(spec->ptr_spec);
|
||
while ((c = *p++))
|
||
if (c == '%' && (*p == '{' || (*p == 'W' && *++p == '{')))
|
||
/* We have a switch spec. */
|
||
validate_switches (p + 1);
|
||
}
|
||
|
||
p = link_command_spec;
|
||
while ((c = *p++))
|
||
if (c == '%' && (*p == '{' || (*p == 'W' && *++p == '{')))
|
||
/* We have a switch spec. */
|
||
validate_switches (p + 1);
|
||
}
|
||
|
||
/* Look at the switch-name that comes after START
|
||
and mark as valid all supplied switches that match it. */
|
||
|
||
static void
|
||
validate_switches (start)
|
||
const char *start;
|
||
{
|
||
const char *p = start;
|
||
const char *filter;
|
||
int i;
|
||
int suffix;
|
||
|
||
if (*p == '|')
|
||
++p;
|
||
|
||
next_member:
|
||
if (*p == '!')
|
||
++p;
|
||
|
||
suffix = 0;
|
||
if (*p == '.')
|
||
suffix = 1, ++p;
|
||
|
||
filter = p;
|
||
while (*p != ':' && *p != '}' && *p != '|' && *p != '&')
|
||
p++;
|
||
|
||
if (suffix)
|
||
;
|
||
else if (p[-1] == '*')
|
||
{
|
||
/* Mark all matching switches as valid. */
|
||
for (i = 0; i < n_switches; i++)
|
||
if (!strncmp (switches[i].part1, filter, p - filter - 1))
|
||
switches[i].validated = 1;
|
||
}
|
||
else
|
||
{
|
||
/* Mark an exact matching switch as valid. */
|
||
for (i = 0; i < n_switches; i++)
|
||
{
|
||
if (!strncmp (switches[i].part1, filter, p - filter)
|
||
&& switches[i].part1[p - filter] == 0)
|
||
switches[i].validated = 1;
|
||
}
|
||
}
|
||
|
||
if (*p++ == '|' || p[-1] == '&')
|
||
goto next_member;
|
||
}
|
||
|
||
/* Check whether a particular argument was used. The first time we
|
||
canonicalize the switches to keep only the ones we care about. */
|
||
|
||
static int
|
||
used_arg (p, len)
|
||
const char *p;
|
||
int len;
|
||
{
|
||
struct mswitchstr
|
||
{
|
||
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')
|
||
abort ();
|
||
q++;
|
||
}
|
||
matches[i].len = q - matches[i].str;
|
||
|
||
matches[i].replace = ++q;
|
||
while (*q != ';' && *q != '\0')
|
||
{
|
||
if (*q == ' ')
|
||
abort ();
|
||
q++;
|
||
}
|
||
matches[i].rep_len = q - matches[i].replace;
|
||
i++;
|
||
if (*q == ';')
|
||
q++;
|
||
}
|
||
|
||
/* Now build a list of the replacement string for switches that we care
|
||
about. Make sure we allocate at least one entry. This prevents
|
||
xmalloc from calling fatal, and prevents us from re-executing this
|
||
block of code. */
|
||
mswitches
|
||
= (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
|
||
* (n_switches ? n_switches : 1));
|
||
for (i = 0; i < n_switches; i++)
|
||
{
|
||
int xlen = strlen (switches[i].part1);
|
||
for (j = 0; j < cnt; j++)
|
||
if (xlen == matches[j].len
|
||
&& ! 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;
|
||
}
|
||
}
|
||
}
|
||
|
||
for (i = 0; i < n_mswitches; i++)
|
||
if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
|
||
return 1;
|
||
|
||
return 0;
|
||
}
|
||
|
||
static int
|
||
default_arg (p, len)
|
||
const char *p;
|
||
int len;
|
||
{
|
||
const char *start, *end;
|
||
|
||
for (start = multilib_defaults; *start != '\0'; start = end + 1)
|
||
{
|
||
while (*start == ' ' || *start == '\t')
|
||
start++;
|
||
|
||
if (*start == '\0')
|
||
break;
|
||
|
||
for (end = start + 1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
|
||
;
|
||
|
||
if ((end - start) == len && strncmp (p, start, len) == 0)
|
||
return 1;
|
||
|
||
if (*end == '\0')
|
||
break;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
/* Work out the subdirectory to use based on the options. The format of
|
||
multilib_select is a list of elements. Each element is a subdirectory
|
||
name followed by a list of options followed by a semicolon. 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 ()
|
||
{
|
||
const char *p;
|
||
unsigned int this_path_len;
|
||
const char *this_path, *this_arg;
|
||
int not_arg;
|
||
int ok;
|
||
|
||
p = multilib_exclusions;
|
||
while (*p != '\0')
|
||
{
|
||
/* Ignore newlines. */
|
||
if (*p == '\n')
|
||
{
|
||
++p;
|
||
continue;
|
||
}
|
||
|
||
/* Check the arguments. */
|
||
ok = 1;
|
||
while (*p != ';')
|
||
{
|
||
if (*p == '\0')
|
||
abort ();
|
||
|
||
if (! ok)
|
||
{
|
||
++p;
|
||
continue;
|
||
}
|
||
|
||
this_arg = p;
|
||
while (*p != ' ' && *p != ';')
|
||
{
|
||
if (*p == '\0')
|
||
abort ();
|
||
++p;
|
||
}
|
||
|
||
if (*this_arg != '!')
|
||
not_arg = 0;
|
||
else
|
||
{
|
||
not_arg = 1;
|
||
++this_arg;
|
||
}
|
||
|
||
ok = used_arg (this_arg, p - this_arg);
|
||
if (not_arg)
|
||
ok = ! ok;
|
||
|
||
if (*p == ' ')
|
||
++p;
|
||
}
|
||
|
||
if (ok)
|
||
return;
|
||
|
||
++p;
|
||
}
|
||
|
||
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')
|
||
abort ();
|
||
++p;
|
||
}
|
||
this_path_len = p - this_path;
|
||
|
||
/* Check the arguments. */
|
||
ok = 1;
|
||
++p;
|
||
while (*p != ';')
|
||
{
|
||
if (*p == '\0')
|
||
abort ();
|
||
|
||
if (! ok)
|
||
{
|
||
++p;
|
||
continue;
|
||
}
|
||
|
||
this_arg = p;
|
||
while (*p != ' ' && *p != ';')
|
||
{
|
||
if (*p == '\0')
|
||
abort ();
|
||
++p;
|
||
}
|
||
|
||
if (*this_arg != '!')
|
||
not_arg = 0;
|
||
else
|
||
{
|
||
not_arg = 1;
|
||
++this_arg;
|
||
}
|
||
|
||
/* If this is a default argument, we can just ignore it.
|
||
This is true even if this_arg begins with '!'. Beginning
|
||
with '!' does not mean that this argument is necessarily
|
||
inappropriate for this library: it merely means that
|
||
there is a more specific library which uses this
|
||
argument. If this argument is a default, we need not
|
||
consider that more specific library. */
|
||
if (! default_arg (this_arg, p - this_arg))
|
||
{
|
||
ok = used_arg (this_arg, p - this_arg);
|
||
if (not_arg)
|
||
ok = ! ok;
|
||
}
|
||
|
||
if (*p == ' ')
|
||
++p;
|
||
}
|
||
|
||
if (ok)
|
||
{
|
||
if (this_path_len != 1
|
||
|| this_path[0] != '.')
|
||
{
|
||
char *new_multilib_dir = xmalloc (this_path_len + 1);
|
||
strncpy (new_multilib_dir, this_path, this_path_len);
|
||
new_multilib_dir[this_path_len] = '\0';
|
||
multilib_dir = new_multilib_dir;
|
||
}
|
||
break;
|
||
}
|
||
|
||
++p;
|
||
}
|
||
}
|
||
|
||
/* Print out the multiple library subdirectory selection
|
||
information. This prints out a series of lines. Each line looks
|
||
like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
|
||
required. Only the desired options are printed out, the negative
|
||
matches. The options are print without a leading dash. There are
|
||
no spaces to make it easy to use the information in the shell.
|
||
Each subdirectory is printed only once. This assumes the ordering
|
||
generated by the genmultilib script. Also, we leave out ones that match
|
||
the exclusions. */
|
||
|
||
static void
|
||
print_multilib_info ()
|
||
{
|
||
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')
|
||
abort ();
|
||
++p;
|
||
}
|
||
|
||
/* 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')
|
||
abort ();
|
||
|
||
if (! m)
|
||
{
|
||
++e;
|
||
continue;
|
||
}
|
||
|
||
this_arg = e;
|
||
|
||
while (*e != ' ' && *e != ';')
|
||
{
|
||
if (*e == '\0')
|
||
abort ();
|
||
++e;
|
||
}
|
||
|
||
q = p + 1;
|
||
while (*q != ';')
|
||
{
|
||
const char *arg;
|
||
int len = e - this_arg;
|
||
|
||
if (*q == '\0')
|
||
abort ();
|
||
|
||
arg = q;
|
||
|
||
while (*q != ' ' && *q != ';')
|
||
{
|
||
if (*q == '\0')
|
||
abort ();
|
||
++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')
|
||
abort ();
|
||
|
||
if (*q == '!')
|
||
arg = NULL;
|
||
else
|
||
arg = q;
|
||
|
||
while (*q != ' ' && *q != ';')
|
||
{
|
||
if (*q == '\0')
|
||
abort ();
|
||
++q;
|
||
}
|
||
|
||
if (arg != NULL
|
||
&& default_arg (arg, q - arg))
|
||
{
|
||
skip = 1;
|
||
break;
|
||
}
|
||
|
||
if (*q == ' ')
|
||
++q;
|
||
}
|
||
}
|
||
|
||
if (! skip)
|
||
{
|
||
const char *p1;
|
||
|
||
for (p1 = last_path; p1 < p; p1++)
|
||
putchar (*p1);
|
||
putchar (';');
|
||
}
|
||
|
||
++p;
|
||
while (*p != ';')
|
||
{
|
||
int use_arg;
|
||
|
||
if (*p == '\0')
|
||
abort ();
|
||
|
||
if (skip)
|
||
{
|
||
++p;
|
||
continue;
|
||
}
|
||
|
||
use_arg = *p != '!';
|
||
|
||
if (use_arg)
|
||
putchar ('@');
|
||
|
||
while (*p != ' ' && *p != ';')
|
||
{
|
||
if (*p == '\0')
|
||
abort ();
|
||
if (use_arg)
|
||
putchar (*p);
|
||
++p;
|
||
}
|
||
|
||
if (*p == ' ')
|
||
++p;
|
||
}
|
||
|
||
if (! skip)
|
||
{
|
||
/* If there are extra options, print them now. */
|
||
if (multilib_extra && *multilib_extra)
|
||
{
|
||
int print_at = TRUE;
|
||
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;
|
||
}
|
||
}
|