5271 lines
138 KiB
C
5271 lines
138 KiB
C
/* Compiler driver program that can handle many languages.
|
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Copyright (C) 1987, 89, 92, 93, 94, 1995 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
|
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.
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This paragraph is here to try to keep Sun CC from dying.
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The number of chars here seems crucial!!!! */
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/* This program is the user interface to the C compiler and possibly to
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other compilers. It is used because compilation is a complicated procedure
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which involves running several programs and passing temporary files between
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them, forwarding the users switches to those programs selectively,
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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.
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Once it knows which kind of compilation to perform, the procedure for
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compilation is specified by a string called a "spec". */
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <ctype.h>
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#include <signal.h>
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#include <sys/stat.h>
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#include <errno.h>
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#ifndef _WIN32
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#include <sys/file.h> /* May get R_OK, etc. on some systems. */
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#else
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#include <process.h>
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int __spawnv ();
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int __spawnvp ();
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#endif
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#include "config.h"
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#include "obstack.h"
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#ifdef __STDC__
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#include <stdarg.h>
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#else
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#include <varargs.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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/* Include multi-lib information. */
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#include "multilib.h"
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#ifndef R_OK
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#define R_OK 4
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#define W_OK 2
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#define X_OK 1
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#endif
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#ifndef WIFSIGNALED
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#define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
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#endif
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#ifndef WTERMSIG
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#define WTERMSIG(S) ((S) & 0x7f)
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#endif
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#ifndef WIFEXITED
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#define WIFEXITED(S) (((S) & 0xff) == 0)
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#endif
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#ifndef WEXITSTATUS
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#define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
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#endif
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/* Add prototype support. */
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#ifndef PROTO
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#if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
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#define PROTO(ARGS) ARGS
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#else
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#define PROTO(ARGS) ()
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#endif
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#endif
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#ifndef VPROTO
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#ifdef __STDC__
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#define PVPROTO(ARGS) ARGS
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#define VPROTO(ARGS) ARGS
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#define VA_START(va_list,var) va_start(va_list,var)
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#else
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#define PVPROTO(ARGS) ()
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#define VPROTO(ARGS) (va_alist) va_dcl
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#define VA_START(va_list,var) va_start(va_list)
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#endif
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#endif
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/* Define a generic NULL if one hasn't already been defined. */
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#ifndef NULL
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#define NULL 0
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#endif
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/* Define O_RDONLY if the system hasn't defined it for us. */
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#ifndef O_RDONLY
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#define O_RDONLY 0
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#endif
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#ifndef GENERIC_PTR
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#if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
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#define GENERIC_PTR void *
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#else
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#define GENERIC_PTR char *
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#endif
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#endif
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#ifndef NULL_PTR
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#define NULL_PTR ((GENERIC_PTR)0)
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#endif
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#ifdef USG
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#define vfork fork
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#endif /* USG */
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/* On MSDOS, write temp files in current dir
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because there's no place else we can expect to use. */
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#ifdef __MSDOS__
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#ifndef P_tmpdir
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#define P_tmpdir "."
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#endif
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#endif
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/* Test if something is a normal file. */
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#ifndef S_ISREG
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#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
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#endif
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/* Test if something is a directory. */
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#ifndef S_ISDIR
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#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
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#endif
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/* By default there is no special suffix for executables. */
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#ifndef EXECUTABLE_SUFFIX
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#define EXECUTABLE_SUFFIX ""
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#endif
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/* By default, the suffix for object files is ".o". */
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#ifdef OBJECT_SUFFIX
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#define HAVE_OBJECT_SUFFIX
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#else
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#define OBJECT_SUFFIX ".o"
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#endif
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/* By default, colon separates directories in a path. */
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#ifndef PATH_SEPARATOR
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#define PATH_SEPARATOR ':'
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#endif
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#ifndef DIR_SEPARATOR
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#define DIR_SEPARATOR '/'
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#endif
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static char dir_separator_str[] = {DIR_SEPARATOR, 0};
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#define obstack_chunk_alloc xmalloc
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#define obstack_chunk_free free
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extern void free ();
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extern char *getenv ();
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#ifndef errno
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extern int errno;
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#endif
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extern int sys_nerr;
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#ifndef HAVE_STRERROR
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#if defined(bsd4_4)
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extern const char *const sys_errlist[];
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#else
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extern char *sys_errlist[];
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#endif
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#else
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extern char *strerror();
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#endif
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extern int execv (), execvp ();
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/* If a stage of compilation returns an exit status >= 1,
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compilation of that file ceases. */
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#define MIN_FATAL_STATUS 1
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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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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 char *print_file_name = NULL;
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/* As print_file_name, but search for executable file. */
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static char *print_prog_name = NULL;
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/* Flag saying to print the relative path we'd use to
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find libgcc.a given the current compiler flags. */
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static int print_multi_directory;
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/* 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 indicating whether we should print the command and arguments */
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static int verbose_flag;
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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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static char *compiler_version;
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/* The target version specified with -V */
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static char *spec_version = DEFAULT_TARGET_VERSION;
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/* The target machine specified with -b. */
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static 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 int cross_compile = 1;
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#else
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static int cross_compile = 0;
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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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/* This is the obstack which we use to allocate many strings. */
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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
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and destructors. */
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static struct obstack collect_obstack;
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extern char *version_string;
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/* Forward declaration for prototypes. */
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struct path_prefix;
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static void set_spec PROTO((char *, char *));
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static struct compiler *lookup_compiler PROTO((char *, int, char *));
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static char *build_search_list PROTO((struct path_prefix *, char *, int));
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static void putenv_from_prefixes PROTO((struct path_prefix *, char *));
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static char *find_a_file PROTO((struct path_prefix *, char *, int));
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static void add_prefix PROTO((struct path_prefix *, char *, int, int, int *));
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static char *skip_whitespace PROTO((char *));
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static void record_temp_file PROTO((char *, int, int));
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static void delete_if_ordinary PROTO((char *));
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static void delete_temp_files PROTO((void));
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static void delete_failure_queue PROTO((void));
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static void clear_failure_queue PROTO((void));
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static char *choose_temp_base_try PROTO((char *, char *));
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static void choose_temp_base PROTO((void));
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static int check_live_switch PROTO((int, int));
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static char *handle_braces PROTO((char *));
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static char *save_string PROTO((char *, int));
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static char *concat PROTO((char *, char *));
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static char *concat3 PROTO((char *, char *, char *));
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static char *concat4 PROTO((char *, char *, char *, char *));
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static char *concat6 PROTO((char *, char *, char *, char *, char *, \
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char *));
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static int do_spec PROTO((char *));
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static int do_spec_1 PROTO((char *, int, char *));
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static char *find_file PROTO((char *));
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static int is_directory PROTO((char *, char *, int));
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static void validate_switches PROTO((char *));
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static void validate_all_switches PROTO((void));
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static void give_switch PROTO((int, int));
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static int used_arg PROTO((char *, int));
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static int default_arg PROTO((char *, int));
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static void set_multilib_dir PROTO((void));
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static void print_multilib_info PROTO((void));
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static void pfatal_with_name PROTO((char *));
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static void perror_with_name PROTO((char *));
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static void perror_exec PROTO((char *));
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#ifdef HAVE_VPRINTF
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static void fatal PVPROTO((char *, ...));
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static void error PVPROTO((char *, ...));
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#else
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/* We must not provide any prototype here, even if ANSI C. */
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static void fatal PROTO(());
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static void error PROTO(());
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#endif
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void fancy_abort ();
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char *xmalloc ();
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char *xrealloc ();
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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.
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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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%% 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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%g substitute the temporary-file-name-base. This is a string chosen
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once per compilation. Different temporary file names are made by
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concatenation of constant strings on the end, as in `%g.s'.
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%g also has the same effect of %d.
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%u like %g, but make the temporary file name unique.
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%U returns the last file name generated with %u.
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%d marks the argument containing or following the %d as a
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temporary file name, so that that file will be deleted if CC exits
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successfully. Unlike %g, this contributes no text to the argument.
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%w marks the argument containing or following the %w as the
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"output file" of this compilation. This puts the argument
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into the sequence of arguments that %o will substitute later.
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%W{...}
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like %{...} but mark last argument supplied within
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as a file to be deleted on failure.
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%o substitutes the names of all the output files, with spaces
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automatically placed around them. You should write spaces
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around the %o as well or the results are undefined.
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%o is for use in the specs for running the linker.
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Input files whose names have no recognized suffix are not compiled
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at all, but they are included among the output files, so they will
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be linked.
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%O substitutes the suffix for object files.
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||
%p substitutes the standard macro predefinitions for the
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current target machine. Use this when running cpp.
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%P like %p, but puts `__' before and after the name of each macro.
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(Except macros that already have __.)
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This is for ANSI C.
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%I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
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%s current argument is the name of a library or startup file of some sort.
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Search for that file in a standard list of directories
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and substitute the full name found.
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%eSTR Print STR as an error message. STR is terminated by a newline.
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Use this when inconsistent options are detected.
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%x{OPTION} Accumulate an option for %X.
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%X Output the accumulated linker options specified by compilations.
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%Y Output the accumulated assembler options specified by compilations.
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||
%Z Output the accumulated preprocessor options specified by compilations.
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||
%v1 Substitute the major version number of GCC.
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||
(For version 2.5.n, this is 2.)
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%v2 Substitute the minor version number of GCC.
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(For version 2.5.n, this is 5.)
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%a process ASM_SPEC as a spec.
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This allows config.h to specify part of the spec for running as.
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%A process ASM_FINAL_SPEC as a spec. A capital A is actually
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used here. This can be used to run a post-processor after the
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assembler has done it's job.
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%D Dump out a -L option for each directory in startfile_prefixes.
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If multilib_dir is set, extra entries are generated with it affixed.
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%l process LINK_SPEC as a spec.
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%L process LIB_SPEC as a spec.
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||
%G process LIBGCC_SPEC as a spec.
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||
%S process STARTFILE_SPEC as a spec. A capital S is actually used here.
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%E process ENDFILE_SPEC as a spec. A capital E is actually used here.
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||
%c process SIGNED_CHAR_SPEC as a spec.
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||
%C process CPP_SPEC as a spec. A capital C is actually used here.
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||
%1 process CC1_SPEC as a spec.
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||
%2 process CC1PLUS_SPEC as a spec.
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||
%| output "-" if the input for the current command is coming from a pipe.
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||
%* substitute the variable part of a matched option. (See below.)
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||
Note that each comma in the substituted string is replaced by
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a single space.
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||
%{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
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with -S. This is used for -o, -D, -I, etc; switches that take
|
||
arguments. CC considers `-o foo' as being one switch whose
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||
name starts with `o'. %{o*} would substitute this text,
|
||
including the space; thus, two arguments would be generated.
|
||
%{S*:X} substitutes X if one or more switches whose names start with -S are
|
||
specified to CC. Note that the tail part of the -S option
|
||
(i.e. the part matched by the `*') will be substituted for each
|
||
occurrence of %* within X.
|
||
%{S:X} substitutes X, but only if the -S switch was given to CC.
|
||
%{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
|
||
%{|S:X} like %{S:X}, but if no S switch, substitute `-'.
|
||
%{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
|
||
%{.S:X} substitutes X, but only if processing a file with suffix S.
|
||
%{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
|
||
%(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 | is used to indicate that a command should be piped to
|
||
the following command, but only if -pipe is specified.
|
||
|
||
Note that it is built into CC which switches take arguments and which
|
||
do not. You might think it would be useful to generalize this to
|
||
allow each compiler's spec to say which switches take arguments. But
|
||
this cannot be done in a consistent fashion. CC cannot even decide
|
||
which input files have been specified without knowing which switches
|
||
take arguments, and it must know which input files to compile in order
|
||
to tell which compilers to run.
|
||
|
||
CC also knows implicitly that arguments starting in `-l' are to be
|
||
treated as compiler output files, and passed to the linker in their
|
||
proper position among the other output files. */
|
||
|
||
/* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
|
||
|
||
/* config.h can define ASM_SPEC to provide extra args to the assembler
|
||
or extra switch-translations. */
|
||
#ifndef ASM_SPEC
|
||
#define ASM_SPEC ""
|
||
#endif
|
||
|
||
/* config.h can define ASM_FINAL_SPEC to run a post processor after
|
||
the assembler has run. */
|
||
#ifndef ASM_FINAL_SPEC
|
||
#define ASM_FINAL_SPEC ""
|
||
#endif
|
||
|
||
/* config.h can define CPP_SPEC to provide extra args to the C preprocessor
|
||
or extra switch-translations. */
|
||
#ifndef CPP_SPEC
|
||
#define CPP_SPEC ""
|
||
#endif
|
||
|
||
/* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
|
||
or extra switch-translations. */
|
||
#ifndef CC1_SPEC
|
||
#define CC1_SPEC ""
|
||
#endif
|
||
|
||
/* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
|
||
or extra switch-translations. */
|
||
#ifndef CC1PLUS_SPEC
|
||
#define CC1PLUS_SPEC ""
|
||
#endif
|
||
|
||
/* config.h can define LINK_SPEC to provide extra args to the linker
|
||
or extra switch-translations. */
|
||
#ifndef LINK_SPEC
|
||
#define LINK_SPEC ""
|
||
#endif
|
||
|
||
/* config.h can define LIB_SPEC to override the default libraries. */
|
||
#ifndef LIB_SPEC
|
||
#define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
|
||
#endif
|
||
|
||
/* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
|
||
included. */
|
||
#ifndef LIBGCC_SPEC
|
||
#if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
|
||
/* Have gcc do the search for libgcc.a. */
|
||
#define LIBGCC_SPEC "%{!shared:libgcc.a%s}"
|
||
#else
|
||
#define LIBGCC_SPEC "%{!shared:-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 passing -o and -L.
|
||
Make the string nonempty to require spaces there. */
|
||
#ifndef SWITCHES_NEED_SPACES
|
||
#define SWITCHES_NEED_SPACES ""
|
||
#endif
|
||
|
||
/* config.h can define ENDFILE_SPEC to override the default crtn files. */
|
||
#ifndef ENDFILE_SPEC
|
||
#define ENDFILE_SPEC ""
|
||
#endif
|
||
|
||
/* This spec is used for telling cpp whether char is signed or not. */
|
||
#ifndef SIGNED_CHAR_SPEC
|
||
/* Use #if rather than ?:
|
||
because MIPS C compiler rejects like ?: in initializers. */
|
||
#if DEFAULT_SIGNED_CHAR
|
||
#define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
|
||
#else
|
||
#define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
|
||
#endif
|
||
#endif
|
||
|
||
/* MULTILIB_SELECT comes from multilib.h. It gives a
|
||
string interpreted by set_multilib_dir to select a library
|
||
subdirectory based on the compiler options. */
|
||
#ifndef MULTILIB_SELECT
|
||
#define MULTILIB_SELECT ". ;"
|
||
#endif
|
||
|
||
static char *cpp_spec = CPP_SPEC;
|
||
static char *cpp_predefines = CPP_PREDEFINES;
|
||
static char *cc1_spec = CC1_SPEC;
|
||
static char *cc1plus_spec = CC1PLUS_SPEC;
|
||
static char *signed_char_spec = SIGNED_CHAR_SPEC;
|
||
static char *asm_spec = ASM_SPEC;
|
||
static char *asm_final_spec = ASM_FINAL_SPEC;
|
||
static char *link_spec = LINK_SPEC;
|
||
static char *lib_spec = LIB_SPEC;
|
||
static char *libgcc_spec = LIBGCC_SPEC;
|
||
static char *endfile_spec = ENDFILE_SPEC;
|
||
static char *startfile_spec = STARTFILE_SPEC;
|
||
static char *switches_need_spaces = SWITCHES_NEED_SPACES;
|
||
static char *multilib_select = MULTILIB_SELECT;
|
||
|
||
/* This defines which switch letters take arguments. */
|
||
|
||
#ifndef SWITCH_TAKES_ARG
|
||
#define 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')
|
||
#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"))
|
||
|
||
#ifndef WORD_SWITCH_TAKES_ARG
|
||
#define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
|
||
#endif
|
||
|
||
/* Record the mapping from file suffixes for compilation specs. */
|
||
|
||
struct compiler
|
||
{
|
||
char *suffix; /* Use this compiler for input files
|
||
whose names end in this suffix. */
|
||
|
||
char *spec[4]; /* To use this compiler, concatenate these
|
||
specs and pass to do_spec. */
|
||
};
|
||
|
||
/* Pointer to a vector of `struct compiler' that gives the spec for
|
||
compiling a file, based on its suffix.
|
||
A file that does not end in any of these suffixes will be passed
|
||
unchanged to the loader and nothing else will be done to it.
|
||
|
||
An entry containing two 0s is used to terminate the vector.
|
||
|
||
If multiple entries match a file, the last matching one is used. */
|
||
|
||
static struct compiler *compilers;
|
||
|
||
/* Number of entries in `compilers', not counting the null terminator. */
|
||
|
||
static int n_compilers;
|
||
|
||
/* The default list of file name suffixes and their compilation specs. */
|
||
|
||
static struct compiler default_compilers[] =
|
||
{
|
||
{".c", "@c"},
|
||
{"@c",
|
||
"cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
|
||
%{C:%{!E:%eGNU C does not support -C without using -E}}\
|
||
%{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
|
||
-undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
|
||
%{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
|
||
%{!undef:%{!ansi:%p} %P} %{trigraphs} \
|
||
%c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
|
||
%{traditional-cpp:-traditional}\
|
||
%{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
|
||
%i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
|
||
"%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
|
||
%{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a}\
|
||
%{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
|
||
%{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
|
||
%{aux-info*}\
|
||
%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
|
||
%{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
|
||
%{!S:as %a %Y\
|
||
%{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
|
||
%{!pipe:%g.s} %A\n }}}}"},
|
||
{"-",
|
||
"%{E:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
|
||
%{C:%{!E:%eGNU C does not support -C without using -E}}\
|
||
%{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
|
||
-undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
|
||
%{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
|
||
%{!undef:%{!ansi:%p} %P} %{trigraphs}\
|
||
%c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
|
||
%{traditional-cpp:-traditional}\
|
||
%{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
|
||
%i %W{o*}}\
|
||
%{!E:%e-E required when input is from standard input}"},
|
||
{".m", "@objective-c"},
|
||
{"@objective-c",
|
||
"cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
|
||
%{C:%{!E:%eGNU C does not support -C without using -E}}\
|
||
%{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
|
||
-undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
|
||
%{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
|
||
%{!undef:%{!ansi:%p} %P} %{trigraphs}\
|
||
%c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
|
||
%{traditional-cpp:-traditional}\
|
||
%{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
|
||
%i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
|
||
"%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
|
||
%{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a}\
|
||
%{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
|
||
%{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
|
||
-lang-objc %{gen-decls} \
|
||
%{aux-info*}\
|
||
%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
|
||
%{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
|
||
%{!S:as %a %Y\
|
||
%{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
|
||
%{!pipe:%g.s} %A\n }}}}"},
|
||
{".h", "@c-header"},
|
||
{"@c-header",
|
||
"%{!E:%eCompilation of header file requested} \
|
||
cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
|
||
%{C:%{!E:%eGNU C does not support -C without using -E}}\
|
||
%{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
|
||
-undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
|
||
%{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
|
||
%{!undef:%{!ansi:%p} %P} %{trigraphs}\
|
||
%c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
|
||
%{traditional-cpp:-traditional}\
|
||
%{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
|
||
%i %W{o*}"},
|
||
{".i", "@cpp-output"},
|
||
{"@cpp-output",
|
||
"%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
|
||
%{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
|
||
%{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
|
||
%{aux-info*}\
|
||
%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
|
||
%{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
|
||
%{!S:as %a %Y\
|
||
%{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
|
||
%{!pipe:%g.s} %A\n }}}}"},
|
||
{".s", "@assembler"},
|
||
{"@assembler",
|
||
"%{!M:%{!MM:%{!E:%{!S:as %a %Y\
|
||
%{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
|
||
%i %A\n }}}}"},
|
||
{".S", "@assembler-with-cpp"},
|
||
{"@assembler-with-cpp",
|
||
"cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
|
||
%{C:%{!E:%eGNU C does not support -C without using -E}}\
|
||
%{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
|
||
-undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
|
||
%c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
|
||
%{traditional-cpp:-traditional}\
|
||
%{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
|
||
%i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
|
||
"%{!M:%{!MM:%{!E:%{!S:as %a %Y\
|
||
%{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
|
||
%{!pipe:%g.s} %A\n }}}}"},
|
||
#include "specs.h"
|
||
/* Mark end of table */
|
||
{0, 0}
|
||
};
|
||
|
||
/* Number of elements in default_compilers, not counting the terminator. */
|
||
|
||
static int n_default_compilers
|
||
= (sizeof default_compilers / sizeof (struct compiler)) - 1;
|
||
|
||
/* Here is the spec for running the linker, after compiling all files. */
|
||
|
||
/* -u* was put back because both BSD and SysV seem to support it. */
|
||
/* %{static:} simply prevents an error message if the target machine
|
||
doesn't handle -static. */
|
||
/* We want %{T*} after %{L*} and %D so that it can be used to specify linker
|
||
scripts which exist in user specified directories, or in standard
|
||
directories. */
|
||
#ifdef LINK_LIBGCC_SPECIAL
|
||
/* Don't generate -L options. */
|
||
static char *link_command_spec = "\
|
||
%{!fsyntax-only: \
|
||
%{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
|
||
%{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
|
||
%{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
|
||
%{static:} %{L*} %{T*} %o\
|
||
%{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
|
||
%{!A:%{!nostdlib:%{!nostartfiles:%E}}}\n }}}}}}";
|
||
#else
|
||
/* Use -L. */
|
||
static char *link_command_spec = "\
|
||
%{!fsyntax-only: \
|
||
%{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
|
||
%{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
|
||
%{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
|
||
%{static:} %{L*} %D %{T*} %o\
|
||
%{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
|
||
%{!A:%{!nostdlib:%{!nostartfiles:%E}}}\n }}}}}}";
|
||
#endif
|
||
|
||
/* A vector of options to give to the linker.
|
||
These options are accumulated by %x,
|
||
and substituted into the linker command with %X. */
|
||
static int n_linker_options;
|
||
static char **linker_options;
|
||
|
||
/* A vector of options to give to the assembler.
|
||
These options are accumulated by -Wa,
|
||
and substituted into the assembler command with %Y. */
|
||
static int n_assembler_options;
|
||
static char **assembler_options;
|
||
|
||
/* A vector of options to give to the preprocessor.
|
||
These options are accumulated by -Wp,
|
||
and substituted into the preprocessor command with %Z. */
|
||
static int n_preprocessor_options;
|
||
static char **preprocessor_options;
|
||
|
||
/* Define how to map long options into short ones. */
|
||
|
||
/* This structure describes one mapping. */
|
||
struct option_map
|
||
{
|
||
/* The long option's name. */
|
||
char *name;
|
||
/* The equivalent short option. */
|
||
char *equivalent;
|
||
/* Argument info. A string of flag chars; NULL equals no options.
|
||
a => argument required.
|
||
o => argument optional.
|
||
j => join argument to equivalent, making one word.
|
||
* => require other text after NAME as an argument. */
|
||
char *arg_info;
|
||
};
|
||
|
||
/* This is the table of mappings. Mappings are tried sequentially
|
||
for each option encountered; the first one that matches, wins. */
|
||
|
||
struct option_map option_map[] =
|
||
{
|
||
{"--all-warnings", "-Wall", 0},
|
||
{"--ansi", "-ansi", 0},
|
||
{"--assemble", "-S", 0},
|
||
{"--assert", "-A", "a"},
|
||
{"--comments", "-C", 0},
|
||
{"--compile", "-c", 0},
|
||
{"--debug", "-g", "oj"},
|
||
{"--define-macro", "-D", "a"},
|
||
{"--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", "a"},
|
||
{"--include-directory-after", "-idirafter", "a"},
|
||
{"--include-prefix", "-iprefix", "a"},
|
||
{"--include-with-prefix", "-iwithprefix", "a"},
|
||
{"--include-with-prefix-before", "-iwithprefixbefore", "a"},
|
||
{"--include-with-prefix-after", "-iwithprefix", "a"},
|
||
{"--language", "-x", "a"},
|
||
{"--library-directory", "-L", "a"},
|
||
{"--machine", "-m", "aj"},
|
||
{"--machine-", "-m", "*j"},
|
||
{"--no-line-commands", "-P", 0},
|
||
{"--no-precompiled-includes", "-noprecomp", 0},
|
||
{"--no-standard-includes", "-nostdinc", 0},
|
||
{"--no-standard-libraries", "-nostdlib", 0},
|
||
{"--no-warnings", "-w", 0},
|
||
{"--optimize", "-O", "oj"},
|
||
{"--output", "-o", "a"},
|
||
{"--pedantic", "-pedantic", 0},
|
||
{"--pedantic-errors", "-pedantic-errors", 0},
|
||
{"--pipe", "-pipe", 0},
|
||
{"--prefix", "-B", "a"},
|
||
{"--preprocess", "-E", 0},
|
||
{"--print-search-dirs", "-print-search-dirs", 0},
|
||
{"--print-file-name", "-print-file-name=", "aj"},
|
||
{"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
|
||
{"--print-missing-file-dependencies", "-MG", 0},
|
||
{"--print-multi-lib", "-print-multi-lib", 0},
|
||
{"--print-multi-directory", "-print-multi-directory", 0},
|
||
{"--print-prog-name", "-print-prog-name=", "aj"},
|
||
{"--profile", "-p", 0},
|
||
{"--profile-blocks", "-a", 0},
|
||
{"--quiet", "-q", 0},
|
||
{"--save-temps", "-save-temps", 0},
|
||
{"--shared", "-shared", 0},
|
||
{"--silent", "-q", 0},
|
||
{"--static", "-static", 0},
|
||
{"--symbolic", "-symbolic", 0},
|
||
{"--target", "-b", "a"},
|
||
{"--trace-includes", "-H", 0},
|
||
{"--traditional", "-traditional", 0},
|
||
{"--traditional-cpp", "-traditional-cpp", 0},
|
||
{"--trigraphs", "-trigraphs", 0},
|
||
{"--undefine-macro", "-U", "a"},
|
||
{"--use-version", "-V", "a"},
|
||
{"--user-dependencies", "-MM", 0},
|
||
{"--verbose", "-v", 0},
|
||
{"--version", "-dumpversion", 0},
|
||
{"--warn-", "-W", "*j"},
|
||
{"--write-dependencies", "-MD", 0},
|
||
{"--write-user-dependencies", "-MMD", 0},
|
||
{"--", "-f", "*j"}
|
||
};
|
||
|
||
/* Translate the options described by *ARGCP and *ARGVP.
|
||
Make a new vector and store it back in *ARGVP,
|
||
and store its length in *ARGVC. */
|
||
|
||
static void
|
||
translate_options (argcp, argvp)
|
||
int *argcp;
|
||
char ***argvp;
|
||
{
|
||
int i, j, k;
|
||
int argc = *argcp;
|
||
char **argv = *argvp;
|
||
char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
|
||
int newindex = 0;
|
||
|
||
i = 0;
|
||
newv[newindex++] = argv[i++];
|
||
|
||
while (i < argc)
|
||
{
|
||
/* Translate -- options. */
|
||
if (argv[i][0] == '-' && argv[i][1] == '-')
|
||
{
|
||
/* Find a mapping that applies to this option. */
|
||
for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
|
||
{
|
||
int optlen = strlen (option_map[j].name);
|
||
int arglen = strlen (argv[i]);
|
||
int complen = arglen > optlen ? optlen : arglen;
|
||
char *arginfo = option_map[j].arg_info;
|
||
|
||
if (arginfo == 0)
|
||
arginfo = "";
|
||
|
||
if (!strncmp (argv[i], option_map[j].name, complen))
|
||
{
|
||
char *arg = 0;
|
||
|
||
if (arglen < optlen)
|
||
{
|
||
for (k = j + 1;
|
||
k < sizeof (option_map) / sizeof (option_map[0]);
|
||
k++)
|
||
if (strlen (option_map[k].name) >= arglen
|
||
&& !strncmp (argv[i], option_map[k].name, arglen))
|
||
{
|
||
error ("Ambiguous abbreviation %s", argv[i]);
|
||
break;
|
||
}
|
||
|
||
if (k != sizeof (option_map) / sizeof (option_map[0]))
|
||
break;
|
||
}
|
||
|
||
if (arglen > optlen)
|
||
{
|
||
/* If the option has an argument, accept that. */
|
||
if (argv[i][optlen] == '=')
|
||
arg = argv[i] + optlen + 1;
|
||
|
||
/* If this mapping requires extra text at end of name,
|
||
accept that as "argument". */
|
||
else if (index (arginfo, '*') != 0)
|
||
arg = argv[i] + optlen;
|
||
|
||
/* Otherwise, extra text at end means mismatch.
|
||
Try other mappings. */
|
||
else
|
||
continue;
|
||
}
|
||
|
||
else if (index (arginfo, '*') != 0)
|
||
{
|
||
error ("Incomplete `%s' option", option_map[j].name);
|
||
break;
|
||
}
|
||
|
||
/* Handle arguments. */
|
||
if (index (arginfo, 'a') != 0)
|
||
{
|
||
if (arg == 0)
|
||
{
|
||
if (i + 1 == argc)
|
||
{
|
||
error ("Missing argument to `%s' option",
|
||
option_map[j].name);
|
||
break;
|
||
}
|
||
|
||
arg = argv[++i];
|
||
}
|
||
}
|
||
else if (index (arginfo, '*') != 0)
|
||
;
|
||
else if (index (arginfo, 'o') == 0)
|
||
{
|
||
if (arg != 0)
|
||
error ("Extraneous argument to `%s' option",
|
||
option_map[j].name);
|
||
arg = 0;
|
||
}
|
||
|
||
/* Store the translation as one argv elt or as two. */
|
||
if (arg != 0 && index (arginfo, 'j') != 0)
|
||
newv[newindex++] = concat (option_map[j].equivalent, arg);
|
||
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] == '-')
|
||
{
|
||
char *p = argv[i] + 1;
|
||
int c = *p;
|
||
int nskip = 1;
|
||
|
||
if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
|
||
nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
|
||
else if (WORD_SWITCH_TAKES_ARG (p))
|
||
nskip += WORD_SWITCH_TAKES_ARG (p);
|
||
else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
|
||
&& p[1] == 0)
|
||
nskip += 1;
|
||
else if (! strcmp (p, "Xlinker"))
|
||
nskip += 1;
|
||
|
||
/* Watch out for an option at the end of the command line that
|
||
is missing arguments, and avoid skipping past the end of the
|
||
command line. */
|
||
if (nskip + i > argc)
|
||
nskip = argc - i;
|
||
|
||
while (nskip > 0)
|
||
{
|
||
newv[newindex++] = argv[i++];
|
||
nskip--;
|
||
}
|
||
}
|
||
else
|
||
/* Ordinary operands, or +e options. */
|
||
newv[newindex++] = argv[i++];
|
||
}
|
||
|
||
newv[newindex] = 0;
|
||
|
||
*argvp = newv;
|
||
*argcp = newindex;
|
||
}
|
||
|
||
char *
|
||
my_strerror(e)
|
||
int e;
|
||
{
|
||
|
||
#ifdef HAVE_STRERROR
|
||
return strerror(e);
|
||
|
||
#else
|
||
|
||
static char buffer[30];
|
||
if (!e)
|
||
return "";
|
||
|
||
if (e > 0 && e < sys_nerr)
|
||
return sys_errlist[e];
|
||
|
||
sprintf (buffer, "Unknown error %d", e);
|
||
return buffer;
|
||
#endif
|
||
}
|
||
|
||
/* Read compilation specs from a file named FILENAME,
|
||
replacing the default ones.
|
||
|
||
A suffix which starts with `*' is a definition for
|
||
one of the machine-specific sub-specs. The "suffix" should be
|
||
*asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
|
||
The corresponding spec is stored in asm_spec, etc.,
|
||
rather than in the `compilers' vector.
|
||
|
||
Anything invalid in the file is a fatal error. */
|
||
|
||
static void
|
||
read_specs (filename)
|
||
char *filename;
|
||
{
|
||
int desc;
|
||
int readlen;
|
||
struct stat statbuf;
|
||
char *buffer;
|
||
register char *p;
|
||
|
||
if (verbose_flag)
|
||
fprintf (stderr, "Reading specs from %s\n", filename);
|
||
|
||
/* Open and stat the file. */
|
||
desc = open (filename, O_RDONLY, 0);
|
||
if (desc < 0)
|
||
pfatal_with_name (filename);
|
||
if (stat (filename, &statbuf) < 0)
|
||
pfatal_with_name (filename);
|
||
|
||
/* Read contents of file into BUFFER. */
|
||
buffer = xmalloc ((unsigned) statbuf.st_size + 1);
|
||
readlen = read (desc, buffer, (unsigned) statbuf.st_size);
|
||
if (readlen < 0)
|
||
pfatal_with_name (filename);
|
||
buffer[readlen] = 0;
|
||
close (desc);
|
||
|
||
/* Scan BUFFER for specs, putting them in the vector. */
|
||
p = buffer;
|
||
while (1)
|
||
{
|
||
char *suffix;
|
||
char *spec;
|
||
char *in, *out, *p1, *p2;
|
||
|
||
/* Advance P in BUFFER to the next nonblank nocomment line. */
|
||
p = skip_whitespace (p);
|
||
if (*p == 0)
|
||
break;
|
||
|
||
/* 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 %d characters", 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 %d characters", p - buffer);
|
||
p1 = p;
|
||
/* Find next blank line. */
|
||
while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
|
||
/* Specs end at the blank line and do not include the newline. */
|
||
spec = save_string (p, p1 - p);
|
||
p = p1;
|
||
|
||
/* Delete backslash-newline sequences from the spec. */
|
||
in = spec;
|
||
out = spec;
|
||
while (*in != 0)
|
||
{
|
||
if (in[0] == '\\' && in[1] == '\n')
|
||
in += 2;
|
||
else if (in[0] == '#')
|
||
{
|
||
while (*in && *in != '\n') in++;
|
||
}
|
||
else
|
||
*out++ = *in++;
|
||
}
|
||
*out = 0;
|
||
|
||
if (suffix[0] == '*')
|
||
{
|
||
if (! strcmp (suffix, "*link_command"))
|
||
link_command_spec = spec;
|
||
else
|
||
set_spec (suffix + 1, spec);
|
||
}
|
||
else
|
||
{
|
||
/* Add this pair to the vector. */
|
||
compilers
|
||
= ((struct compiler *)
|
||
xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
|
||
compilers[n_compilers].suffix = suffix;
|
||
bzero ((char *) compilers[n_compilers].spec,
|
||
sizeof compilers[n_compilers].spec);
|
||
compilers[n_compilers].spec[0] = spec;
|
||
n_compilers++;
|
||
bzero ((char *) &compilers[n_compilers],
|
||
sizeof compilers[n_compilers]);
|
||
}
|
||
|
||
if (*suffix == 0)
|
||
link_command_spec = spec;
|
||
}
|
||
|
||
if (link_command_spec == 0)
|
||
fatal ("spec file has no spec for linking");
|
||
}
|
||
|
||
static char *
|
||
skip_whitespace (p)
|
||
char *p;
|
||
{
|
||
while (1)
|
||
{
|
||
/* A fully-blank line is a delimiter in the SPEC file and shouldn't
|
||
be considered whitespace. */
|
||
if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
|
||
return p + 1;
|
||
else if (*p == '\n' || *p == ' ' || *p == '\t')
|
||
p++;
|
||
else if (*p == '#')
|
||
{
|
||
while (*p != '\n') p++;
|
||
p++;
|
||
}
|
||
else
|
||
break;
|
||
}
|
||
|
||
return p;
|
||
}
|
||
|
||
/* Structure to keep track of the specs that have been defined so far. These
|
||
are accessed using %(specname) or %[specname] in a compiler or link spec. */
|
||
|
||
struct spec_list
|
||
{
|
||
char *name; /* Name of the spec. */
|
||
char *spec; /* The spec itself. */
|
||
struct spec_list *next; /* Next spec in linked list. */
|
||
};
|
||
|
||
/* List of specs that have been defined so far. */
|
||
|
||
static struct spec_list *specs = (struct spec_list *) 0;
|
||
|
||
/* 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)
|
||
char *name;
|
||
char *spec;
|
||
{
|
||
struct spec_list *sl;
|
||
char *old_spec;
|
||
|
||
/* See if the spec already exists */
|
||
for (sl = specs; sl; sl = sl->next)
|
||
if (strcmp (sl->name, name) == 0)
|
||
break;
|
||
|
||
if (!sl)
|
||
{
|
||
/* Not found - make it */
|
||
sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
|
||
sl->name = save_string (name, strlen (name));
|
||
sl->spec = save_string ("", 0);
|
||
sl->next = specs;
|
||
specs = sl;
|
||
}
|
||
|
||
old_spec = sl->spec;
|
||
if (name && spec[0] == '+' && isspace (spec[1]))
|
||
sl->spec = concat (old_spec, spec + 1);
|
||
else
|
||
sl->spec = save_string (spec, strlen (spec));
|
||
|
||
if (! strcmp (name, "asm"))
|
||
asm_spec = sl->spec;
|
||
else if (! strcmp (name, "asm_final"))
|
||
asm_final_spec = sl->spec;
|
||
else if (! strcmp (name, "cc1"))
|
||
cc1_spec = sl->spec;
|
||
else if (! strcmp (name, "cc1plus"))
|
||
cc1plus_spec = sl->spec;
|
||
else if (! strcmp (name, "cpp"))
|
||
cpp_spec = sl->spec;
|
||
else if (! strcmp (name, "endfile"))
|
||
endfile_spec = sl->spec;
|
||
else if (! strcmp (name, "lib"))
|
||
lib_spec = sl->spec;
|
||
else if (! strcmp (name, "libgcc"))
|
||
libgcc_spec = sl->spec;
|
||
else if (! strcmp (name, "link"))
|
||
link_spec = sl->spec;
|
||
else if (! strcmp (name, "predefines"))
|
||
cpp_predefines = sl->spec;
|
||
else if (! strcmp (name, "signed_char"))
|
||
signed_char_spec = sl->spec;
|
||
else if (! strcmp (name, "startfile"))
|
||
startfile_spec = sl->spec;
|
||
else if (! strcmp (name, "switches_need_spaces"))
|
||
switches_need_spaces = sl->spec;
|
||
else if (! strcmp (name, "cross_compile"))
|
||
cross_compile = atoi (sl->spec);
|
||
else if (! strcmp (name, "multilib"))
|
||
multilib_select = sl->spec;
|
||
/* Free the old spec */
|
||
if (old_spec)
|
||
free (old_spec);
|
||
}
|
||
|
||
/* Accumulate a command (program name and args), and run it. */
|
||
|
||
/* Vector of pointers to arguments in the current line of specifications. */
|
||
|
||
static char **argbuf;
|
||
|
||
/* Number of elements allocated in argbuf. */
|
||
|
||
static int argbuf_length;
|
||
|
||
/* Number of elements in argbuf currently in use (containing args). */
|
||
|
||
static int argbuf_index;
|
||
|
||
/* This is the list of suffixes and codes (%g/%u/%U) and the associated
|
||
temp file. Used only if MKTEMP_EACH_FILE. */
|
||
|
||
static struct temp_name {
|
||
char *suffix; /* suffix associated with the code. */
|
||
int length; /* strlen (suffix). */
|
||
int unique; /* Indicates whether %g or %u/%U was used. */
|
||
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 char *programname;
|
||
|
||
/* Structures to keep track of prefixes to try when looking for files. */
|
||
|
||
struct prefix_list
|
||
{
|
||
char *prefix; /* String to prepend to the path. */
|
||
struct prefix_list *next; /* Next in linked list. */
|
||
int require_machine_suffix; /* Don't use without machine_suffix. */
|
||
/* 2 means try both machine_suffix and just_machine_suffix. */
|
||
int *used_flag_ptr; /* 1 if a file was found with this prefix. */
|
||
};
|
||
|
||
struct path_prefix
|
||
{
|
||
struct prefix_list *plist; /* List of prefixes to try */
|
||
int max_len; /* Max length of a prefix in PLIST */
|
||
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 char *machine_suffix = 0;
|
||
|
||
/* Suffix to attach to directories searched for commands.
|
||
This is just `MACHINE/'. */
|
||
|
||
static char *just_machine_suffix = 0;
|
||
|
||
/* Adjusted value of GCC_EXEC_PREFIX envvar. */
|
||
|
||
static char *gcc_exec_prefix;
|
||
|
||
/* Default prefixes to attach to command names. */
|
||
|
||
#ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
|
||
#undef MD_EXEC_PREFIX
|
||
#undef MD_STARTFILE_PREFIX
|
||
#undef MD_STARTFILE_PREFIX_1
|
||
#endif
|
||
|
||
#ifndef STANDARD_EXEC_PREFIX
|
||
#define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
|
||
#endif /* !defined STANDARD_EXEC_PREFIX */
|
||
|
||
static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
|
||
static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
|
||
#ifdef MD_EXEC_PREFIX
|
||
static char *md_exec_prefix = MD_EXEC_PREFIX;
|
||
#endif
|
||
|
||
#ifndef STANDARD_STARTFILE_PREFIX
|
||
#define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
|
||
#endif /* !defined STANDARD_STARTFILE_PREFIX */
|
||
|
||
#ifdef MD_STARTFILE_PREFIX
|
||
static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
|
||
#endif
|
||
#ifdef MD_STARTFILE_PREFIX_1
|
||
static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
|
||
#endif
|
||
static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
|
||
static char *standard_startfile_prefix_1 = "/lib/";
|
||
static char *standard_startfile_prefix_2 = "/usr/lib/";
|
||
|
||
#ifndef TOOLDIR_BASE_PREFIX
|
||
#define TOOLDIR_BASE_PREFIX "/usr/local/"
|
||
#endif
|
||
static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
|
||
static char *tooldir_prefix;
|
||
|
||
/* Subdirectory to use for locating libraries. Set by
|
||
set_multilib_dir based on the compilation options. */
|
||
|
||
static char *multilib_dir;
|
||
|
||
/* Clear out the vector of arguments (after a command is executed). */
|
||
|
||
static void
|
||
clear_args ()
|
||
{
|
||
argbuf_index = 0;
|
||
}
|
||
|
||
/* Add one argument to the vector at the end.
|
||
This is done when a space is seen or at the end of the line.
|
||
If DELETE_ALWAYS is nonzero, the arg is a filename
|
||
and the file should be deleted eventually.
|
||
If DELETE_FAILURE is nonzero, the arg is a filename
|
||
and the file should be deleted if this compilation fails. */
|
||
|
||
static void
|
||
store_arg (arg, delete_always, delete_failure)
|
||
char *arg;
|
||
int delete_always, delete_failure;
|
||
{
|
||
if (argbuf_index + 1 == argbuf_length)
|
||
{
|
||
argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
|
||
}
|
||
|
||
argbuf[argbuf_index++] = arg;
|
||
argbuf[argbuf_index] = 0;
|
||
|
||
if (delete_always || delete_failure)
|
||
record_temp_file (arg, delete_always, delete_failure);
|
||
}
|
||
|
||
/* Record the names of temporary files we tell compilers to write,
|
||
and delete them at the end of the run. */
|
||
|
||
/* This is the common prefix we use to make temp file names.
|
||
It is chosen once for each run of this program.
|
||
It is substituted into a spec by %g.
|
||
Thus, all temp file names contain this prefix.
|
||
In practice, all temp file names start with this prefix.
|
||
|
||
This prefix comes from the envvar TMPDIR if it is defined;
|
||
otherwise, from the P_tmpdir macro if that is defined;
|
||
otherwise, in /usr/tmp or /tmp. */
|
||
|
||
static char *temp_filename;
|
||
|
||
/* Length of the prefix. */
|
||
|
||
static int temp_filename_length;
|
||
|
||
/* Define the list of temporary files to delete. */
|
||
|
||
struct temp_file
|
||
{
|
||
char *name;
|
||
struct temp_file *next;
|
||
};
|
||
|
||
/* Queue of files to delete on success or failure of compilation. */
|
||
static struct temp_file *always_delete_queue;
|
||
/* Queue of files to delete on failure of compilation. */
|
||
static struct temp_file *failure_delete_queue;
|
||
|
||
/* Record FILENAME as a file to be deleted automatically.
|
||
ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
|
||
otherwise delete it in any case.
|
||
FAIL_DELETE nonzero means delete it if a compilation step fails;
|
||
otherwise delete it in any case. */
|
||
|
||
static void
|
||
record_temp_file (filename, always_delete, fail_delete)
|
||
char *filename;
|
||
int always_delete;
|
||
int fail_delete;
|
||
{
|
||
register char *name;
|
||
name = xmalloc (strlen (filename) + 1);
|
||
strcpy (name, filename);
|
||
|
||
if (always_delete)
|
||
{
|
||
register struct temp_file *temp;
|
||
for (temp = always_delete_queue; temp; temp = temp->next)
|
||
if (! strcmp (name, temp->name))
|
||
goto already1;
|
||
temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
|
||
temp->next = always_delete_queue;
|
||
temp->name = name;
|
||
always_delete_queue = temp;
|
||
already1:;
|
||
}
|
||
|
||
if (fail_delete)
|
||
{
|
||
register struct temp_file *temp;
|
||
for (temp = failure_delete_queue; temp; temp = temp->next)
|
||
if (! strcmp (name, temp->name))
|
||
goto already2;
|
||
temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
|
||
temp->next = failure_delete_queue;
|
||
temp->name = name;
|
||
failure_delete_queue = temp;
|
||
already2:;
|
||
}
|
||
}
|
||
|
||
/* Delete all the temporary files whose names we previously recorded. */
|
||
|
||
static void
|
||
delete_if_ordinary (name)
|
||
char *name;
|
||
{
|
||
struct stat st;
|
||
#ifdef DEBUG
|
||
int i, c;
|
||
|
||
printf ("Delete %s? (y or n) ", name);
|
||
fflush (stdout);
|
||
i = getchar ();
|
||
if (i != '\n')
|
||
while ((c = getchar ()) != '\n' && c != EOF) ;
|
||
if (i == 'y' || i == 'Y')
|
||
#endif /* DEBUG */
|
||
if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
|
||
if (unlink (name) < 0)
|
||
if (verbose_flag)
|
||
perror_with_name (name);
|
||
}
|
||
|
||
static void
|
||
delete_temp_files ()
|
||
{
|
||
register struct temp_file *temp;
|
||
|
||
for (temp = always_delete_queue; temp; temp = temp->next)
|
||
delete_if_ordinary (temp->name);
|
||
always_delete_queue = 0;
|
||
}
|
||
|
||
/* Delete all the files to be deleted on error. */
|
||
|
||
static void
|
||
delete_failure_queue ()
|
||
{
|
||
register struct temp_file *temp;
|
||
|
||
for (temp = failure_delete_queue; temp; temp = temp->next)
|
||
delete_if_ordinary (temp->name);
|
||
}
|
||
|
||
static void
|
||
clear_failure_queue ()
|
||
{
|
||
failure_delete_queue = 0;
|
||
}
|
||
|
||
/* Compute a string to use as the base of all temporary file names.
|
||
It is substituted for %g. */
|
||
|
||
static char *
|
||
choose_temp_base_try (try, base)
|
||
char *try;
|
||
char *base;
|
||
{
|
||
char *rv;
|
||
if (base)
|
||
rv = base;
|
||
else if (try == (char *)0)
|
||
rv = 0;
|
||
else if (access (try, R_OK | W_OK) != 0)
|
||
rv = 0;
|
||
else
|
||
rv = try;
|
||
return rv;
|
||
}
|
||
|
||
static void
|
||
choose_temp_base ()
|
||
{
|
||
char *base = 0;
|
||
int len;
|
||
|
||
base = choose_temp_base_try (getenv ("TMPDIR"), base);
|
||
base = choose_temp_base_try (getenv ("TMP"), base);
|
||
base = choose_temp_base_try (getenv ("TEMP"), base);
|
||
|
||
#ifdef P_tmpdir
|
||
base = choose_temp_base_try (P_tmpdir, base);
|
||
#endif
|
||
|
||
base = choose_temp_base_try (concat4 (dir_separator_str, "usr",
|
||
dir_separator_str, "tmp"),
|
||
base);
|
||
base = choose_temp_base_try (concat (dir_separator_str, "tmp"), base);
|
||
|
||
/* If all else fails, use the current directory! */
|
||
if (base == (char *)0) base = concat(".", dir_separator_str);
|
||
|
||
len = strlen (base);
|
||
temp_filename = xmalloc (len + strlen (concat (dir_separator_str,
|
||
"ccXXXXXX")) + 1);
|
||
strcpy (temp_filename, base);
|
||
if (len > 0 && temp_filename[len-1] != '/'
|
||
&& temp_filename[len-1] != DIR_SEPARATOR)
|
||
temp_filename[len++] = DIR_SEPARATOR;
|
||
strcpy (temp_filename + len, "ccXXXXXX");
|
||
|
||
mktemp (temp_filename);
|
||
temp_filename_length = strlen (temp_filename);
|
||
if (temp_filename_length == 0)
|
||
abort ();
|
||
}
|
||
|
||
|
||
/* Routine to add variables to the environment. We do this to pass
|
||
the pathname of the gcc driver, and the directories search to the
|
||
collect2 program, which is being run as ld. This way, we can be
|
||
sure of executing the right compiler when collect2 wants to build
|
||
constructors and destructors. Since the environment variables we
|
||
use come from an obstack, we don't have to worry about allocating
|
||
space for them. */
|
||
|
||
#ifndef HAVE_PUTENV
|
||
|
||
void
|
||
putenv (str)
|
||
char *str;
|
||
{
|
||
#ifndef VMS /* nor about VMS */
|
||
|
||
extern char **environ;
|
||
char **old_environ = environ;
|
||
char **envp;
|
||
int num_envs = 0;
|
||
int name_len = 1;
|
||
char *p = str;
|
||
int ch;
|
||
|
||
while ((ch = *p++) != '\0' && ch != '=')
|
||
name_len++;
|
||
|
||
if (!ch)
|
||
abort ();
|
||
|
||
/* Search for replacing an existing environment variable, and
|
||
count the number of total environment variables. */
|
||
for (envp = old_environ; *envp; envp++)
|
||
{
|
||
num_envs++;
|
||
if (!strncmp (str, *envp, name_len))
|
||
{
|
||
*envp = str;
|
||
return;
|
||
}
|
||
}
|
||
|
||
/* Add a new environment variable */
|
||
environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
|
||
*environ = str;
|
||
bcopy ((char *) old_environ, (char *) (environ + 1),
|
||
sizeof (char *) * (num_envs+1));
|
||
|
||
#endif /* VMS */
|
||
}
|
||
|
||
#endif /* HAVE_PUTENV */
|
||
|
||
|
||
/* Build a list of search directories from PATHS.
|
||
PREFIX is a string to prepend to the list.
|
||
If CHECK_DIR_P is non-zero we ensure the directory exists.
|
||
This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
|
||
It is also used by the --print-search-dirs flag. */
|
||
|
||
static char *
|
||
build_search_list (paths, prefix, check_dir_p)
|
||
struct path_prefix *paths;
|
||
char *prefix;
|
||
int check_dir_p;
|
||
{
|
||
int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
|
||
int just_suffix_len
|
||
= (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
|
||
int first_time = TRUE;
|
||
struct prefix_list *pprefix;
|
||
|
||
obstack_grow (&collect_obstack, prefix, strlen (prefix));
|
||
|
||
for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
|
||
{
|
||
int len = strlen (pprefix->prefix);
|
||
|
||
if (machine_suffix
|
||
&& (!check_dir_p
|
||
|| is_directory (pprefix->prefix, machine_suffix, 0)))
|
||
{
|
||
if (!first_time)
|
||
obstack_1grow (&collect_obstack, PATH_SEPARATOR);
|
||
|
||
first_time = FALSE;
|
||
obstack_grow (&collect_obstack, pprefix->prefix, len);
|
||
obstack_grow (&collect_obstack, machine_suffix, suffix_len);
|
||
}
|
||
|
||
if (just_machine_suffix
|
||
&& pprefix->require_machine_suffix == 2
|
||
&& (!check_dir_p
|
||
|| is_directory (pprefix->prefix, just_machine_suffix, 0)))
|
||
{
|
||
if (!first_time)
|
||
obstack_1grow (&collect_obstack, PATH_SEPARATOR);
|
||
|
||
first_time = FALSE;
|
||
obstack_grow (&collect_obstack, pprefix->prefix, len);
|
||
obstack_grow (&collect_obstack, just_machine_suffix,
|
||
just_suffix_len);
|
||
}
|
||
|
||
if (!pprefix->require_machine_suffix)
|
||
{
|
||
if (!first_time)
|
||
obstack_1grow (&collect_obstack, PATH_SEPARATOR);
|
||
|
||
first_time = FALSE;
|
||
obstack_grow (&collect_obstack, pprefix->prefix, len);
|
||
}
|
||
}
|
||
obstack_1grow (&collect_obstack, '\0');
|
||
return obstack_finish (&collect_obstack);
|
||
}
|
||
|
||
/* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
|
||
|
||
static void
|
||
putenv_from_prefixes (paths, env_var)
|
||
struct path_prefix *paths;
|
||
char *env_var;
|
||
{
|
||
putenv (build_search_list (paths, env_var, 1));
|
||
}
|
||
|
||
/* Search for NAME using the prefix list PREFIXES. MODE is passed to
|
||
access to check permissions.
|
||
Return 0 if not found, otherwise return its name, allocated with malloc. */
|
||
|
||
static char *
|
||
find_a_file (pprefix, name, mode)
|
||
struct path_prefix *pprefix;
|
||
char *name;
|
||
int mode;
|
||
{
|
||
char *temp;
|
||
char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
|
||
struct prefix_list *pl;
|
||
int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
|
||
|
||
if (machine_suffix)
|
||
len += strlen (machine_suffix);
|
||
|
||
temp = xmalloc (len);
|
||
|
||
/* Determine the filename to execute (special case for absolute paths). */
|
||
|
||
if (*name == '/' || *name == DIR_SEPARATOR)
|
||
{
|
||
if (access (name, mode))
|
||
{
|
||
strcpy (temp, name);
|
||
return temp;
|
||
}
|
||
}
|
||
else
|
||
for (pl = pprefix->plist; pl; pl = pl->next)
|
||
{
|
||
if (machine_suffix)
|
||
{
|
||
/* Some systems have a suffix for executable files.
|
||
So try appending that first. */
|
||
if (file_suffix[0] != 0)
|
||
{
|
||
strcpy (temp, pl->prefix);
|
||
strcat (temp, machine_suffix);
|
||
strcat (temp, name);
|
||
strcat (temp, file_suffix);
|
||
if (access (temp, mode) == 0)
|
||
{
|
||
if (pl->used_flag_ptr != 0)
|
||
*pl->used_flag_ptr = 1;
|
||
return temp;
|
||
}
|
||
}
|
||
|
||
/* Now try just the name. */
|
||
strcpy (temp, pl->prefix);
|
||
strcat (temp, machine_suffix);
|
||
strcat (temp, name);
|
||
if (access (temp, mode) == 0)
|
||
{
|
||
if (pl->used_flag_ptr != 0)
|
||
*pl->used_flag_ptr = 1;
|
||
return temp;
|
||
}
|
||
}
|
||
|
||
/* Certain prefixes are tried with just the machine type,
|
||
not the version. This is used for finding as, ld, etc. */
|
||
if (just_machine_suffix && pl->require_machine_suffix == 2)
|
||
{
|
||
/* Some systems have a suffix for executable files.
|
||
So try appending that first. */
|
||
if (file_suffix[0] != 0)
|
||
{
|
||
strcpy (temp, pl->prefix);
|
||
strcat (temp, just_machine_suffix);
|
||
strcat (temp, name);
|
||
strcat (temp, file_suffix);
|
||
if (access (temp, mode) == 0)
|
||
{
|
||
if (pl->used_flag_ptr != 0)
|
||
*pl->used_flag_ptr = 1;
|
||
return temp;
|
||
}
|
||
}
|
||
|
||
strcpy (temp, pl->prefix);
|
||
strcat (temp, just_machine_suffix);
|
||
strcat (temp, name);
|
||
if (access (temp, mode) == 0)
|
||
{
|
||
if (pl->used_flag_ptr != 0)
|
||
*pl->used_flag_ptr = 1;
|
||
return temp;
|
||
}
|
||
}
|
||
|
||
/* Certain prefixes can't be used without the machine suffix
|
||
when the machine or version is explicitly specified. */
|
||
if (!pl->require_machine_suffix)
|
||
{
|
||
/* Some systems have a suffix for executable files.
|
||
So try appending that first. */
|
||
if (file_suffix[0] != 0)
|
||
{
|
||
strcpy (temp, pl->prefix);
|
||
strcat (temp, name);
|
||
strcat (temp, file_suffix);
|
||
if (access (temp, mode) == 0)
|
||
{
|
||
if (pl->used_flag_ptr != 0)
|
||
*pl->used_flag_ptr = 1;
|
||
return temp;
|
||
}
|
||
}
|
||
|
||
strcpy (temp, pl->prefix);
|
||
strcat (temp, name);
|
||
if (access (temp, mode) == 0)
|
||
{
|
||
if (pl->used_flag_ptr != 0)
|
||
*pl->used_flag_ptr = 1;
|
||
return temp;
|
||
}
|
||
}
|
||
}
|
||
|
||
free (temp);
|
||
return 0;
|
||
}
|
||
|
||
/* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
|
||
at the start of the list, otherwise it goes at the end.
|
||
|
||
If WARN is nonzero, we will warn if no file is found
|
||
through this prefix. WARN should point to an int
|
||
which will be set to 1 if this entry is used.
|
||
|
||
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, first, require_machine_suffix, warn)
|
||
struct path_prefix *pprefix;
|
||
char *prefix;
|
||
int first;
|
||
int require_machine_suffix;
|
||
int *warn;
|
||
{
|
||
struct prefix_list *pl, **prev;
|
||
int len;
|
||
|
||
if (!first && pprefix->plist)
|
||
{
|
||
for (pl = pprefix->plist; pl->next; pl = pl->next)
|
||
;
|
||
prev = &pl->next;
|
||
}
|
||
else
|
||
prev = &pprefix->plist;
|
||
|
||
/* Keep track of the longest prefix */
|
||
|
||
len = strlen (prefix);
|
||
if (len > pprefix->max_len)
|
||
pprefix->max_len = len;
|
||
|
||
pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
|
||
pl->prefix = save_string (prefix, len);
|
||
pl->require_machine_suffix = require_machine_suffix;
|
||
pl->used_flag_ptr = warn;
|
||
if (warn)
|
||
*warn = 0;
|
||
|
||
if (*prev)
|
||
pl->next = *prev;
|
||
else
|
||
pl->next = (struct prefix_list *) 0;
|
||
*prev = pl;
|
||
}
|
||
|
||
/* Print warnings for any prefixes in the list PPREFIX that were not used. */
|
||
|
||
static void
|
||
unused_prefix_warnings (pprefix)
|
||
struct path_prefix *pprefix;
|
||
{
|
||
struct prefix_list *pl = pprefix->plist;
|
||
|
||
while (pl)
|
||
{
|
||
if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
|
||
{
|
||
error ("file path prefix `%s' never used",
|
||
pl->prefix);
|
||
/* Prevent duplicate warnings. */
|
||
*pl->used_flag_ptr = 1;
|
||
}
|
||
pl = pl->next;
|
||
}
|
||
}
|
||
|
||
/* Get rid of all prefixes built up so far in *PLISTP. */
|
||
|
||
static void
|
||
free_path_prefix (pprefix)
|
||
struct path_prefix *pprefix;
|
||
{
|
||
struct prefix_list *pl = pprefix->plist;
|
||
struct prefix_list *temp;
|
||
|
||
while (pl)
|
||
{
|
||
temp = pl;
|
||
pl = pl->next;
|
||
free (temp->prefix);
|
||
free ((char *) temp);
|
||
}
|
||
pprefix->plist = (struct prefix_list *) 0;
|
||
}
|
||
|
||
/* stdin file number. */
|
||
#define STDIN_FILE_NO 0
|
||
|
||
/* stdout file number. */
|
||
#define STDOUT_FILE_NO 1
|
||
|
||
/* value of `pipe': port index for reading. */
|
||
#define READ_PORT 0
|
||
|
||
/* value of `pipe': port index for writing. */
|
||
#define WRITE_PORT 1
|
||
|
||
/* Pipe waiting from last process, to be used as input for the next one.
|
||
Value is STDIN_FILE_NO if no pipe is waiting
|
||
(i.e. the next command is the first of a group). */
|
||
|
||
static int last_pipe_input;
|
||
|
||
/* Fork one piped subcommand. FUNC is the system call to use
|
||
(either execv or execvp). ARGV is the arg vector to use.
|
||
NOT_LAST is nonzero if this is not the last subcommand
|
||
(i.e. its output should be piped to the next one.) */
|
||
|
||
#ifdef __MSDOS__
|
||
|
||
#include <process.h>
|
||
static int
|
||
pexecute (search_flag, program, argv, not_last)
|
||
int search_flag;
|
||
char *program;
|
||
char *argv[];
|
||
int not_last;
|
||
{
|
||
#ifdef __GO32__
|
||
int i = (search_flag ? spawnv : spawnvp) (1, program, argv);
|
||
#else
|
||
char *scmd, *rf;
|
||
FILE *argfile;
|
||
int i, el = search_flag ? 0 : 4;
|
||
|
||
scmd = (char *)malloc (strlen (program) + strlen (temp_filename) + 6 + el);
|
||
rf = scmd + strlen(program) + 2 + el;
|
||
sprintf (scmd, "%s%s @%s.gp", program,
|
||
(search_flag ? "" : ".exe"), temp_filename);
|
||
argfile = fopen (rf, "w");
|
||
if (argfile == 0)
|
||
pfatal_with_name (rf);
|
||
|
||
for (i=1; argv[i]; i++)
|
||
{
|
||
char *cp;
|
||
for (cp = argv[i]; *cp; cp++)
|
||
{
|
||
if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp))
|
||
fputc ('\\', argfile);
|
||
fputc (*cp, argfile);
|
||
}
|
||
fputc ('\n', argfile);
|
||
}
|
||
fclose (argfile);
|
||
|
||
i = system (scmd);
|
||
|
||
remove (rf);
|
||
#endif
|
||
|
||
if (i == -1)
|
||
{
|
||
perror_exec (program);
|
||
return MIN_FATAL_STATUS << 8;
|
||
}
|
||
return i << 8;
|
||
}
|
||
|
||
#endif
|
||
|
||
#if !defined(__MSDOS__) && !defined(OS2) && !defined(_WIN32)
|
||
|
||
static int
|
||
pexecute (search_flag, program, argv, not_last)
|
||
int search_flag;
|
||
char *program;
|
||
char *argv[];
|
||
int not_last;
|
||
{
|
||
int (*func)() = (search_flag ? execv : execvp);
|
||
int pid;
|
||
int pdes[2];
|
||
int input_desc = last_pipe_input;
|
||
int output_desc = STDOUT_FILE_NO;
|
||
int retries, sleep_interval;
|
||
|
||
/* If this isn't the last process, make a pipe for its output,
|
||
and record it as waiting to be the input to the next process. */
|
||
|
||
if (not_last)
|
||
{
|
||
if (pipe (pdes) < 0)
|
||
pfatal_with_name ("pipe");
|
||
output_desc = pdes[WRITE_PORT];
|
||
last_pipe_input = pdes[READ_PORT];
|
||
}
|
||
else
|
||
last_pipe_input = STDIN_FILE_NO;
|
||
|
||
/* Fork a subprocess; wait and retry if it fails. */
|
||
sleep_interval = 1;
|
||
for (retries = 0; retries < 4; retries++)
|
||
{
|
||
pid = vfork ();
|
||
if (pid >= 0)
|
||
break;
|
||
sleep (sleep_interval);
|
||
sleep_interval *= 2;
|
||
}
|
||
|
||
switch (pid)
|
||
{
|
||
case -1:
|
||
#ifdef vfork
|
||
pfatal_with_name ("fork");
|
||
#else
|
||
pfatal_with_name ("vfork");
|
||
#endif
|
||
/* NOTREACHED */
|
||
return 0;
|
||
|
||
case 0: /* child */
|
||
/* Move the input and output pipes into place, if nec. */
|
||
if (input_desc != STDIN_FILE_NO)
|
||
{
|
||
close (STDIN_FILE_NO);
|
||
dup (input_desc);
|
||
close (input_desc);
|
||
}
|
||
if (output_desc != STDOUT_FILE_NO)
|
||
{
|
||
close (STDOUT_FILE_NO);
|
||
dup (output_desc);
|
||
close (output_desc);
|
||
}
|
||
|
||
/* Close the parent's descs that aren't wanted here. */
|
||
if (last_pipe_input != STDIN_FILE_NO)
|
||
close (last_pipe_input);
|
||
|
||
/* Exec the program. */
|
||
(*func) (program, argv);
|
||
perror_exec (program);
|
||
_exit (1);
|
||
/* NOTREACHED */
|
||
return 0;
|
||
|
||
default:
|
||
/* In the parent, after forking.
|
||
Close the descriptors that we made for this child. */
|
||
if (input_desc != STDIN_FILE_NO)
|
||
close (input_desc);
|
||
if (output_desc != STDOUT_FILE_NO)
|
||
close (output_desc);
|
||
|
||
/* Return child's process number. */
|
||
return pid;
|
||
}
|
||
}
|
||
|
||
#endif /* not __MSDOS__ and not OS2 and not _WIN32 */
|
||
|
||
#if defined(OS2)
|
||
|
||
static int
|
||
pexecute (search_flag, program, argv, not_last)
|
||
int search_flag;
|
||
char *program;
|
||
char *argv[];
|
||
int not_last;
|
||
{
|
||
return (search_flag ? spawnv : spawnvp) (1, program, argv);
|
||
}
|
||
#endif /* OS2 */
|
||
|
||
#if defined(_WIN32)
|
||
|
||
static int
|
||
pexecute (search_flag, program, argv, not_last)
|
||
int search_flag;
|
||
char *program;
|
||
char *argv[];
|
||
int not_last;
|
||
{
|
||
return (search_flag ? __spawnv : __spawnvp) (1, program, argv);
|
||
}
|
||
#endif /* _WIN32 */
|
||
|
||
|
||
/* 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
|
||
{
|
||
char *prog; /* program name. */
|
||
char **argv; /* vector of args. */
|
||
int pid; /* pid of process for this command. */
|
||
};
|
||
|
||
struct command *commands; /* each command buffer with above info. */
|
||
|
||
/* Count # of piped commands. */
|
||
for (n_commands = 1, i = 0; i < argbuf_index; i++)
|
||
if (strcmp (argbuf[i], "|") == 0)
|
||
n_commands++;
|
||
|
||
/* Get storage for each command. */
|
||
commands
|
||
= (struct command *) alloca (n_commands * sizeof (struct command));
|
||
|
||
/* Split argbuf into its separate piped processes,
|
||
and record info about each one.
|
||
Also search for the programs that are to be run. */
|
||
|
||
commands[0].prog = argbuf[0]; /* first command. */
|
||
commands[0].argv = &argbuf[0];
|
||
string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
|
||
if (string)
|
||
commands[0].argv[0] = string;
|
||
|
||
for (n_commands = 1, i = 0; i < argbuf_index; i++)
|
||
if (strcmp (argbuf[i], "|") == 0)
|
||
{ /* each command. */
|
||
#ifdef __MSDOS__
|
||
fatal ("-pipe not supported under MS-DOS");
|
||
#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)
|
||
{
|
||
/* Print each piped command as a separate line. */
|
||
for (i = 0; i < n_commands ; i++)
|
||
{
|
||
char **j;
|
||
|
||
for (j = commands[i].argv; *j; j++)
|
||
fprintf (stderr, " %s", *j);
|
||
|
||
/* Print a pipe symbol after all but the last command. */
|
||
if (i + 1 != n_commands)
|
||
fprintf (stderr, " |");
|
||
fprintf (stderr, "\n");
|
||
}
|
||
fflush (stderr);
|
||
#ifdef DEBUG
|
||
fprintf (stderr, "\nGo ahead? (y or n) ");
|
||
fflush (stderr);
|
||
i = getchar ();
|
||
if (i != '\n')
|
||
while (getchar () != '\n') ;
|
||
if (i != 'y' && i != 'Y')
|
||
return 0;
|
||
#endif /* DEBUG */
|
||
}
|
||
|
||
/* Run each piped subprocess. */
|
||
|
||
last_pipe_input = STDIN_FILE_NO;
|
||
for (i = 0; i < n_commands; i++)
|
||
{
|
||
char *string = commands[i].argv[0];
|
||
|
||
commands[i].pid = pexecute (string != commands[i].prog,
|
||
string, commands[i].argv,
|
||
i + 1 < n_commands);
|
||
|
||
if (string != commands[i].prog)
|
||
free (string);
|
||
}
|
||
|
||
execution_count++;
|
||
|
||
/* Wait for all the subprocesses to finish.
|
||
We don't care what order they finish in;
|
||
we know that N_COMMANDS waits will get them all.
|
||
Ignore subprocesses that we don't know about,
|
||
since they can be spawned by the process that exec'ed us. */
|
||
|
||
{
|
||
int ret_code = 0;
|
||
|
||
for (i = 0; i < n_commands; )
|
||
{
|
||
int j;
|
||
int status;
|
||
int pid;
|
||
|
||
#ifdef __MSDOS__
|
||
status = pid = commands[i].pid;
|
||
#else
|
||
#ifdef _WIN32
|
||
pid = cwait (&status, commands[i].pid, WAIT_CHILD);
|
||
#else
|
||
pid = wait (&status);
|
||
#endif
|
||
#endif
|
||
if (pid < 0)
|
||
abort ();
|
||
|
||
for (j = 0; j < n_commands; j++)
|
||
if (commands[j].pid == pid)
|
||
{
|
||
i++;
|
||
if (status != 0)
|
||
{
|
||
if (WIFSIGNALED (status))
|
||
{
|
||
fatal ("Internal compiler error: program %s got fatal signal %d",
|
||
commands[j].prog, WTERMSIG (status));
|
||
signal_count++;
|
||
ret_code = -1;
|
||
}
|
||
else if (WIFEXITED (status)
|
||
&& WEXITSTATUS (status) >= MIN_FATAL_STATUS)
|
||
ret_code = -1;
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
return ret_code;
|
||
}
|
||
}
|
||
|
||
/* Find all the switches given to us
|
||
and make a vector describing them.
|
||
The elements of the vector are strings, one per switch given.
|
||
If a switch uses following arguments, then the `part1' field
|
||
is the switch itself and the `args' field
|
||
is a null-terminated vector containing the following arguments.
|
||
The `live_cond' field is 1 if the switch is true in a conditional spec,
|
||
-1 if false (overridden by a later switch), and is initialized to zero.
|
||
The `valid' field is nonzero if any spec has looked at this switch;
|
||
if it remains zero at the end of the run, it must be meaningless. */
|
||
|
||
struct switchstr
|
||
{
|
||
char *part1;
|
||
char **args;
|
||
int live_cond;
|
||
int valid;
|
||
};
|
||
|
||
static struct switchstr *switches;
|
||
|
||
static int n_switches;
|
||
|
||
struct infile
|
||
{
|
||
char *name;
|
||
char *language;
|
||
};
|
||
|
||
/* Also a vector of input files specified. */
|
||
|
||
static struct infile *infiles;
|
||
|
||
static int n_infiles;
|
||
|
||
/* And a vector of corresponding output files is made up later. */
|
||
|
||
static char **outfiles;
|
||
|
||
/* Create the vector `switches' and its contents.
|
||
Store its length in `n_switches'. */
|
||
|
||
static void
|
||
process_command (argc, argv)
|
||
int argc;
|
||
char **argv;
|
||
{
|
||
register int i;
|
||
char *temp;
|
||
char *spec_lang = 0;
|
||
int last_language_n_infiles;
|
||
|
||
gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
|
||
|
||
n_switches = 0;
|
||
n_infiles = 0;
|
||
|
||
/* Figure compiler version from version string. */
|
||
|
||
compiler_version = save_string (version_string, strlen (version_string));
|
||
for (temp = compiler_version; *temp; ++temp)
|
||
{
|
||
if (*temp == ' ')
|
||
{
|
||
*temp = '\0';
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* Set up the default search paths. */
|
||
|
||
if (gcc_exec_prefix)
|
||
{
|
||
add_prefix (&exec_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
|
||
add_prefix (&startfile_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
|
||
}
|
||
|
||
/* COMPILER_PATH and LIBRARY_PATH have values
|
||
that are lists of directory names with colons. */
|
||
|
||
temp = getenv ("COMPILER_PATH");
|
||
if (temp)
|
||
{
|
||
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));
|
||
else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
|
||
{
|
||
nstore[endp-startp] = DIR_SEPARATOR;
|
||
nstore[endp-startp+1] = 0;
|
||
}
|
||
else
|
||
nstore[endp-startp] = 0;
|
||
add_prefix (&exec_prefixes, nstore, 0, 0, NULL_PTR);
|
||
if (*endp == 0)
|
||
break;
|
||
endp = startp = endp + 1;
|
||
}
|
||
else
|
||
endp++;
|
||
}
|
||
}
|
||
|
||
temp = getenv ("LIBRARY_PATH");
|
||
if (temp && ! cross_compile)
|
||
{
|
||
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));
|
||
else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
|
||
{
|
||
nstore[endp-startp] = DIR_SEPARATOR;
|
||
nstore[endp-startp+1] = 0;
|
||
}
|
||
else
|
||
nstore[endp-startp] = 0;
|
||
add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
|
||
if (*endp == 0)
|
||
break;
|
||
endp = startp = endp + 1;
|
||
}
|
||
else
|
||
endp++;
|
||
}
|
||
}
|
||
|
||
/* Use LPATH like LIBRARY_PATH (for the CMU build program). */
|
||
temp = getenv ("LPATH");
|
||
if (temp && ! cross_compile)
|
||
{
|
||
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));
|
||
else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
|
||
{
|
||
nstore[endp-startp] = DIR_SEPARATOR;
|
||
nstore[endp-startp+1] = 0;
|
||
}
|
||
else
|
||
nstore[endp-startp] = 0;
|
||
add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
|
||
if (*endp == 0)
|
||
break;
|
||
endp = startp = endp + 1;
|
||
}
|
||
else
|
||
endp++;
|
||
}
|
||
}
|
||
|
||
/* Convert new-style -- options to old-style. */
|
||
translate_options (&argc, &argv);
|
||
|
||
/* Scan argv twice. Here, the first time, just count how many switches
|
||
there will be in their vector, and how many input files in theirs.
|
||
Here we also parse the switches that cc itself uses (e.g. -v). */
|
||
|
||
for (i = 1; i < argc; i++)
|
||
{
|
||
if (! strcmp (argv[i], "-dumpspecs"))
|
||
{
|
||
printf ("*asm:\n%s\n\n", asm_spec);
|
||
printf ("*asm_final:\n%s\n\n", asm_final_spec);
|
||
printf ("*cpp:\n%s\n\n", cpp_spec);
|
||
printf ("*cc1:\n%s\n\n", cc1_spec);
|
||
printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
|
||
printf ("*endfile:\n%s\n\n", endfile_spec);
|
||
printf ("*link:\n%s\n\n", link_spec);
|
||
printf ("*lib:\n%s\n\n", lib_spec);
|
||
printf ("*libgcc:\n%s\n\n", libgcc_spec);
|
||
printf ("*startfile:\n%s\n\n", startfile_spec);
|
||
printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
|
||
printf ("*signed_char:\n%s\n\n", signed_char_spec);
|
||
printf ("*predefines:\n%s\n\n", cpp_predefines);
|
||
printf ("*cross_compile:\n%d\n\n", cross_compile);
|
||
printf ("*multilib:\n%s\n\n", multilib_select);
|
||
|
||
exit (0);
|
||
}
|
||
else if (! strcmp (argv[i], "-dumpversion"))
|
||
{
|
||
printf ("%s\n", version_string);
|
||
exit (0);
|
||
}
|
||
else if (! strcmp (argv[i], "-dumpmachine"))
|
||
{
|
||
printf ("%s\n", spec_machine);
|
||
exit (0);
|
||
}
|
||
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. */
|
||
|
||
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 **));
|
||
|
||
/* Split the argument at commas. */
|
||
prev = 4;
|
||
for (j = 4; argv[i][j]; j++)
|
||
if (argv[i][j] == ',')
|
||
{
|
||
assembler_options[n_assembler_options - 1]
|
||
= save_string (argv[i] + prev, j - prev);
|
||
n_assembler_options++;
|
||
assembler_options
|
||
= (char **) xrealloc (assembler_options,
|
||
n_assembler_options * sizeof (char **));
|
||
prev = j + 1;
|
||
}
|
||
/* Record the part after the last comma. */
|
||
assembler_options[n_assembler_options - 1] = argv[i] + prev;
|
||
}
|
||
else if (! strncmp (argv[i], "-Wp,", 4))
|
||
{
|
||
int prev, j;
|
||
/* Pass the rest of this option to the preprocessor. */
|
||
|
||
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 **));
|
||
|
||
/* Split the argument at commas. */
|
||
prev = 4;
|
||
for (j = 4; argv[i][j]; j++)
|
||
if (argv[i][j] == ',')
|
||
{
|
||
preprocessor_options[n_preprocessor_options - 1]
|
||
= save_string (argv[i] + prev, j - prev);
|
||
n_preprocessor_options++;
|
||
preprocessor_options
|
||
= (char **) xrealloc (preprocessor_options,
|
||
n_preprocessor_options * sizeof (char **));
|
||
prev = j + 1;
|
||
}
|
||
/* Record the part after the last comma. */
|
||
preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
|
||
}
|
||
else if (argv[i][0] == '+' && argv[i][1] == 'e')
|
||
/* The +e options to the C++ front-end. */
|
||
n_switches++;
|
||
else if (strncmp (argv[i], "-Wl,", 4) == 0)
|
||
{
|
||
int j;
|
||
/* Split the argument at commas. */
|
||
for (j = 3; argv[i][j]; j++)
|
||
n_infiles += (argv[i][j] == ',');
|
||
}
|
||
else if (strcmp (argv[i], "-Xlinker") == 0)
|
||
{
|
||
if (i + 1 == argc)
|
||
fatal ("argument to `-Xlinker' is missing");
|
||
|
||
n_infiles++;
|
||
i++;
|
||
}
|
||
else if (strncmp (argv[i], "-l", 2) == 0)
|
||
n_infiles++;
|
||
else if (argv[i][0] == '-' && argv[i][1] != 0)
|
||
{
|
||
register char *p = &argv[i][1];
|
||
register int c = *p;
|
||
|
||
switch (c)
|
||
{
|
||
case 'b':
|
||
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;
|
||
break;
|
||
|
||
case 'B':
|
||
{
|
||
int *temp = (int *) xmalloc (sizeof (int));
|
||
char *value;
|
||
if (p[1] == 0 && i + 1 == argc)
|
||
fatal ("argument to `-B' is missing");
|
||
if (p[1] == 0)
|
||
value = argv[++i];
|
||
else
|
||
value = p + 1;
|
||
add_prefix (&exec_prefixes, value, 1, 0, temp);
|
||
add_prefix (&startfile_prefixes, value, 1, 0, temp);
|
||
add_prefix (&include_prefixes, concat (value, "include"),
|
||
1, 0, 0);
|
||
|
||
/* As a kludge, if the arg is "[foo/]stageN/", just add
|
||
"[foo/]include" to the include prefix. */
|
||
{
|
||
int len = strlen (value);
|
||
if ((len == 7
|
||
|| (len > 7
|
||
&& (value[len - 8] == '/'
|
||
|| value[len - 8] == DIR_SEPARATOR)))
|
||
&& strncmp (value + len - 7, "stage", 5) == 0
|
||
&& isdigit (value[len - 2])
|
||
&& (value[len - 1] == '/'
|
||
|| value[len - 1] == DIR_SEPARATOR))
|
||
{
|
||
if (len == 7)
|
||
add_prefix (&include_prefixes, "include", 1, 0, 0);
|
||
else
|
||
{
|
||
char *string = xmalloc (len + 1);
|
||
strncpy (string, value, len-7);
|
||
strcat (string, "include");
|
||
add_prefix (&include_prefixes, string, 1, 0, 0);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
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':
|
||
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;
|
||
break;
|
||
|
||
case 's':
|
||
if (!strcmp (p, "save-temps"))
|
||
{
|
||
save_temps_flag = 1;
|
||
n_switches++;
|
||
break;
|
||
}
|
||
default:
|
||
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++;
|
||
}
|
||
|
||
/* 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
|
||
add_prefix (&exec_prefixes, "/usr/libexec/", 0, 0, NULL_PTR);
|
||
add_prefix (&exec_prefixes, "/usr/bin/", 0, 0, NULL_PTR);
|
||
add_prefix (&startfile_prefixes, "/usr/libdata/gcc/", 0, 0, NULL_PTR);
|
||
#else /* not FREEBSD_NATIVE */
|
||
#ifndef OS2
|
||
add_prefix (&exec_prefixes, standard_exec_prefix, 0, 2, NULL_PTR);
|
||
add_prefix (&exec_prefixes, standard_exec_prefix_1, 0, 2, NULL_PTR);
|
||
#endif
|
||
|
||
add_prefix (&startfile_prefixes, standard_exec_prefix, 0, 1, NULL_PTR);
|
||
add_prefix (&startfile_prefixes, standard_exec_prefix_1, 0, 1, NULL_PTR);
|
||
#endif /* FREEBSD_NATIVE */
|
||
|
||
tooldir_prefix = concat3 (tooldir_base_prefix, spec_machine,
|
||
dir_separator_str);
|
||
|
||
/* 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 (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
|
||
{
|
||
if (gcc_exec_prefix)
|
||
{
|
||
char *gcc_exec_tooldir_prefix
|
||
= concat6 (gcc_exec_prefix, spec_machine, dir_separator_str,
|
||
spec_version, dir_separator_str, tooldir_prefix);
|
||
|
||
add_prefix (&exec_prefixes,
|
||
concat3 (gcc_exec_tooldir_prefix, "bin",
|
||
dir_separator_str),
|
||
0, 0, NULL_PTR);
|
||
add_prefix (&startfile_prefixes,
|
||
concat3 (gcc_exec_tooldir_prefix, "lib",
|
||
dir_separator_str),
|
||
0, 0, NULL_PTR);
|
||
}
|
||
|
||
tooldir_prefix = concat6 (standard_exec_prefix, spec_machine,
|
||
dir_separator_str, spec_version,
|
||
dir_separator_str, tooldir_prefix);
|
||
}
|
||
|
||
#ifndef FREEBSD_NATIVE
|
||
add_prefix (&exec_prefixes,
|
||
concat3 (tooldir_prefix, "bin", dir_separator_str),
|
||
0, 0, NULL_PTR);
|
||
add_prefix (&startfile_prefixes,
|
||
concat3 (tooldir_prefix, "lib", dir_separator_str),
|
||
0, 0, NULL_PTR);
|
||
#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. */
|
||
|
||
for (i = 1; i < argc; i++)
|
||
{
|
||
/* Just skip the switches that were handled by the preceding loop. */
|
||
if (! strncmp (argv[i], "-Wa,", 4))
|
||
;
|
||
else if (! strncmp (argv[i], "-Wp,", 4))
|
||
;
|
||
else if (! strcmp (argv[i], "-print-search-dirs"))
|
||
;
|
||
else if (! strcmp (argv[i], "-print-libgcc-file-name"))
|
||
;
|
||
else if (! strncmp (argv[i], "-print-file-name=", 17))
|
||
;
|
||
else if (! strncmp (argv[i], "-print-prog-name=", 17))
|
||
;
|
||
else if (! strcmp (argv[i], "-print-multi-lib"))
|
||
;
|
||
else if (! strcmp (argv[i], "-print-multi-directory"))
|
||
;
|
||
else if (argv[i][0] == '+' && argv[i][1] == 'e')
|
||
{
|
||
/* Compensate for the +e options to the C++ front-end;
|
||
they're there simply for cfront call-compatibility. We do
|
||
some magic in default_compilers to pass them down properly.
|
||
Note we deliberately start at the `+' here, to avoid passing
|
||
-e0 or -e1 down into the linker. */
|
||
switches[n_switches].part1 = &argv[i][0];
|
||
switches[n_switches].args = 0;
|
||
switches[n_switches].live_cond = 0;
|
||
switches[n_switches].valid = 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 = 0;
|
||
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 = 0;
|
||
infiles[n_infiles++].name = argv[i] + prev;
|
||
}
|
||
else if (strcmp (argv[i], "-Xlinker") == 0)
|
||
{
|
||
infiles[n_infiles].language = 0;
|
||
infiles[n_infiles++].name = argv[++i];
|
||
}
|
||
else if (strncmp (argv[i], "-l", 2) == 0)
|
||
{
|
||
infiles[n_infiles].language = 0;
|
||
infiles[n_infiles++].name = argv[i];
|
||
}
|
||
else if (argv[i][0] == '-' && argv[i][1] != 0)
|
||
{
|
||
register char *p = &argv[i][1];
|
||
register int c = *p;
|
||
|
||
if (c == 'B' || c == 'b' || c == 'V')
|
||
{
|
||
/* Skip a separate arg, if any. */
|
||
if (p[1] == 0)
|
||
i++;
|
||
continue;
|
||
}
|
||
if (c == 'x')
|
||
{
|
||
if (p[1] == 0 && i + 1 == argc)
|
||
fatal ("argument to `-x' is missing");
|
||
if (p[1] == 0)
|
||
spec_lang = argv[++i];
|
||
else
|
||
spec_lang = p + 1;
|
||
if (! strcmp (spec_lang, "none"))
|
||
/* Suppress the warning if -xnone comes after the last input
|
||
file, because alternate command interfaces like g++ might
|
||
find it useful to place -xnone after each input file. */
|
||
spec_lang = 0;
|
||
else
|
||
last_language_n_infiles = n_infiles;
|
||
continue;
|
||
}
|
||
switches[n_switches].part1 = p;
|
||
/* Deal with option arguments in separate argv elements. */
|
||
if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
|
||
|| WORD_SWITCH_TAKES_ARG (p))
|
||
{
|
||
int j = 0;
|
||
int n_args = WORD_SWITCH_TAKES_ARG (p);
|
||
|
||
if (n_args == 0)
|
||
{
|
||
/* Count only the option arguments in separate argv elements. */
|
||
n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
|
||
}
|
||
if (i + n_args >= argc)
|
||
fatal ("argument to `-%s' is missing", p);
|
||
switches[n_switches].args
|
||
= (char **) xmalloc ((n_args + 1) * sizeof (char *));
|
||
while (j < n_args)
|
||
switches[n_switches].args[j++] = argv[++i];
|
||
/* Null-terminate the vector. */
|
||
switches[n_switches].args[j] = 0;
|
||
}
|
||
else if (*switches_need_spaces != 0 && (c == 'o' || c == 'L'))
|
||
{
|
||
/* On some systems, ld cannot handle -o or -L without space.
|
||
So split the -o or -L from its argument. */
|
||
switches[n_switches].part1 = (c == 'o' ? "o" : "L");
|
||
switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
|
||
switches[n_switches].args[0] = xmalloc (strlen (p));
|
||
strcpy (switches[n_switches].args[0], &p[1]);
|
||
switches[n_switches].args[1] = 0;
|
||
}
|
||
else
|
||
switches[n_switches].args = 0;
|
||
|
||
switches[n_switches].live_cond = 0;
|
||
switches[n_switches].valid = 0;
|
||
/* This is always valid, since gcc.c itself understands it. */
|
||
if (!strcmp (p, "save-temps"))
|
||
switches[n_switches].valid = 1;
|
||
n_switches++;
|
||
}
|
||
else
|
||
{
|
||
#ifdef HAVE_OBJECT_SUFFIX
|
||
/* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
|
||
if (strlen (argv[i]) > 2
|
||
&& argv[i][strlen (argv[i]) - 2] == '.'
|
||
&& argv[i][strlen (argv[i]) - 1] == 'o')
|
||
{
|
||
int j;
|
||
|
||
for (j = 0; j < strlen (argv[i]) - 2; j++)
|
||
obstack_1grow (&obstack, argv[i][j]);
|
||
|
||
obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
|
||
obstack_1grow (&obstack, 0);
|
||
argv[i] = obstack_finish (&obstack);
|
||
}
|
||
#endif
|
||
|
||
if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
|
||
{
|
||
perror_with_name (argv[i]);
|
||
error_count++;
|
||
}
|
||
else
|
||
{
|
||
infiles[n_infiles].language = spec_lang;
|
||
infiles[n_infiles++].name = argv[i];
|
||
}
|
||
}
|
||
}
|
||
|
||
if (n_infiles == last_language_n_infiles && spec_lang != 0)
|
||
error ("Warning: `-x %s' after last input file has no effect", spec_lang);
|
||
|
||
switches[n_switches].part1 = 0;
|
||
infiles[n_infiles].name = 0;
|
||
}
|
||
|
||
/* Process a spec string, accumulating and running commands. */
|
||
|
||
/* These variables describe the input file name.
|
||
input_file_number is the index on outfiles of this file,
|
||
so that the output file name can be stored for later use by %o.
|
||
input_basename is the start of the part of the input file
|
||
sans all directory names, and basename_length is the number
|
||
of characters starting there excluding the suffix .c or whatever. */
|
||
|
||
static char *input_filename;
|
||
static int input_file_number;
|
||
static int input_filename_length;
|
||
static int basename_length;
|
||
static char *input_basename;
|
||
static char *input_suffix;
|
||
|
||
/* These are variables used within do_spec and do_spec_1. */
|
||
|
||
/* Nonzero if an arg has been started and not yet terminated
|
||
(with space, tab or newline). */
|
||
static int arg_going;
|
||
|
||
/* Nonzero means %d or %g has been seen; the next arg to be terminated
|
||
is a temporary file name. */
|
||
static int delete_this_arg;
|
||
|
||
/* Nonzero means %w has been seen; the next arg to be terminated
|
||
is the output file name of this compilation. */
|
||
static int this_is_output_file;
|
||
|
||
/* Nonzero means %s has been seen; the next arg to be terminated
|
||
is the name of a library file and we should try the standard
|
||
search dirs for it. */
|
||
static int this_is_library_file;
|
||
|
||
/* Nonzero means that the input of this command is coming from a pipe. */
|
||
static int input_from_pipe;
|
||
|
||
/* Process the spec SPEC and run the commands specified therein.
|
||
Returns 0 if the spec is successfully processed; -1 if failed. */
|
||
|
||
static int
|
||
do_spec (spec)
|
||
char *spec;
|
||
{
|
||
int value;
|
||
|
||
clear_args ();
|
||
arg_going = 0;
|
||
delete_this_arg = 0;
|
||
this_is_output_file = 0;
|
||
this_is_library_file = 0;
|
||
input_from_pipe = 0;
|
||
|
||
value = do_spec_1 (spec, 0, NULL_PTR);
|
||
|
||
/* Force out any unfinished command.
|
||
If -pipe, this forces out the last command if it ended in `|'. */
|
||
if (value == 0)
|
||
{
|
||
if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
|
||
argbuf_index--;
|
||
|
||
if (argbuf_index > 0)
|
||
value = execute ();
|
||
}
|
||
|
||
return value;
|
||
}
|
||
|
||
/* Process the sub-spec SPEC as a portion of a larger spec.
|
||
This is like processing a whole spec except that we do
|
||
not initialize at the beginning and we do not supply a
|
||
newline by default at the end.
|
||
INSWITCH nonzero means don't process %-sequences in SPEC;
|
||
in this case, % is treated as an ordinary character.
|
||
This is used while substituting switches.
|
||
INSWITCH nonzero also causes SPC not to terminate an argument.
|
||
|
||
Value is zero unless a line was finished
|
||
and the command on that line reported an error. */
|
||
|
||
static int
|
||
do_spec_1 (spec, inswitch, soft_matched_part)
|
||
char *spec;
|
||
int inswitch;
|
||
char *soft_matched_part;
|
||
{
|
||
register char *p = spec;
|
||
register int c;
|
||
int i;
|
||
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].valid = 1;
|
||
break;
|
||
}
|
||
else
|
||
argbuf_index--;
|
||
}
|
||
|
||
if (argbuf_index > 0)
|
||
{
|
||
value = execute ();
|
||
if (value)
|
||
return value;
|
||
}
|
||
/* Reinitialize for a new command, and for a new argument. */
|
||
clear_args ();
|
||
arg_going = 0;
|
||
delete_this_arg = 0;
|
||
this_is_output_file = 0;
|
||
this_is_library_file = 0;
|
||
input_from_pipe = 0;
|
||
break;
|
||
|
||
case '|':
|
||
/* End any pending argument. */
|
||
if (arg_going)
|
||
{
|
||
obstack_1grow (&obstack, 0);
|
||
string = obstack_finish (&obstack);
|
||
if (this_is_library_file)
|
||
string = find_file (string);
|
||
store_arg (string, delete_this_arg, this_is_output_file);
|
||
if (this_is_output_file)
|
||
outfiles[input_file_number] = string;
|
||
}
|
||
|
||
/* Use pipe */
|
||
obstack_1grow (&obstack, c);
|
||
arg_going = 1;
|
||
break;
|
||
|
||
case '\t':
|
||
case ' ':
|
||
/* Space or tab ends an argument if one is pending. */
|
||
if (arg_going)
|
||
{
|
||
obstack_1grow (&obstack, 0);
|
||
string = obstack_finish (&obstack);
|
||
if (this_is_library_file)
|
||
string = find_file (string);
|
||
store_arg (string, delete_this_arg, this_is_output_file);
|
||
if (this_is_output_file)
|
||
outfiles[input_file_number] = string;
|
||
}
|
||
/* Reinitialize for a new argument. */
|
||
arg_going = 0;
|
||
delete_this_arg = 0;
|
||
this_is_output_file = 0;
|
||
this_is_library_file = 0;
|
||
break;
|
||
|
||
case '%':
|
||
switch (c = *p++)
|
||
{
|
||
case 0:
|
||
fatal ("Invalid specification! Bug in cc.");
|
||
|
||
case 'b':
|
||
obstack_grow (&obstack, input_basename, basename_length);
|
||
arg_going = 1;
|
||
break;
|
||
|
||
case 'd':
|
||
delete_this_arg = 2;
|
||
break;
|
||
|
||
/* Dump out the directories specified with LIBRARY_PATH,
|
||
followed by the absolute directories
|
||
that we search for startfiles. */
|
||
case 'D':
|
||
{
|
||
struct prefix_list *pl = startfile_prefixes.plist;
|
||
int 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 (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
|
||
continue;
|
||
#endif
|
||
/* Try subdirectory if there is one. */
|
||
if (multilib_dir != NULL)
|
||
{
|
||
if (machine_suffix)
|
||
{
|
||
if (strlen (pl->prefix) + strlen (machine_suffix)
|
||
>= bufsize)
|
||
bufsize = (strlen (pl->prefix)
|
||
+ strlen (machine_suffix)) * 2 + 1;
|
||
buffer = (char *) xrealloc (buffer, bufsize);
|
||
strcpy (buffer, pl->prefix);
|
||
strcat (buffer, machine_suffix);
|
||
if (is_directory (buffer, multilib_dir, 1))
|
||
{
|
||
do_spec_1 ("-L", 0, NULL_PTR);
|
||
#ifdef SPACE_AFTER_L_OPTION
|
||
do_spec_1 (" ", 0, NULL_PTR);
|
||
#endif
|
||
do_spec_1 (buffer, 1, NULL_PTR);
|
||
do_spec_1 (multilib_dir, 1, NULL_PTR);
|
||
/* Make this a separate argument. */
|
||
do_spec_1 (" ", 0, NULL_PTR);
|
||
}
|
||
}
|
||
if (!pl->require_machine_suffix)
|
||
{
|
||
if (is_directory (pl->prefix, multilib_dir, 1))
|
||
{
|
||
do_spec_1 ("-L", 0, NULL_PTR);
|
||
#ifdef SPACE_AFTER_L_OPTION
|
||
do_spec_1 (" ", 0, NULL_PTR);
|
||
#endif
|
||
do_spec_1 (pl->prefix, 1, NULL_PTR);
|
||
do_spec_1 (multilib_dir, 1, NULL_PTR);
|
||
/* Make this a separate argument. */
|
||
do_spec_1 (" ", 0, NULL_PTR);
|
||
}
|
||
}
|
||
}
|
||
if (machine_suffix)
|
||
{
|
||
if (is_directory (pl->prefix, machine_suffix, 1))
|
||
{
|
||
do_spec_1 ("-L", 0, NULL_PTR);
|
||
#ifdef SPACE_AFTER_L_OPTION
|
||
do_spec_1 (" ", 0, NULL_PTR);
|
||
#endif
|
||
do_spec_1 (pl->prefix, 1, NULL_PTR);
|
||
/* Remove slash from machine_suffix. */
|
||
if (strlen (machine_suffix) >= bufsize)
|
||
bufsize = strlen (machine_suffix) * 2 + 1;
|
||
buffer = (char *) xrealloc (buffer, bufsize);
|
||
strcpy (buffer, machine_suffix);
|
||
idx = strlen (buffer);
|
||
if (buffer[idx - 1] == '/'
|
||
|| buffer[idx - 1] == DIR_SEPARATOR)
|
||
buffer[idx - 1] = 0;
|
||
do_spec_1 (buffer, 1, NULL_PTR);
|
||
/* Make this a separate argument. */
|
||
do_spec_1 (" ", 0, NULL_PTR);
|
||
}
|
||
}
|
||
if (!pl->require_machine_suffix)
|
||
{
|
||
if (is_directory (pl->prefix, "", 1))
|
||
{
|
||
do_spec_1 ("-L", 0, NULL_PTR);
|
||
#ifdef SPACE_AFTER_L_OPTION
|
||
do_spec_1 (" ", 0, NULL_PTR);
|
||
#endif
|
||
/* Remove slash from pl->prefix. */
|
||
if (strlen (pl->prefix) >= bufsize)
|
||
bufsize = strlen (pl->prefix) * 2 + 1;
|
||
buffer = (char *) xrealloc (buffer, bufsize);
|
||
strcpy (buffer, pl->prefix);
|
||
idx = strlen (buffer);
|
||
if (buffer[idx - 1] == '/'
|
||
|| buffer[idx - 1] == DIR_SEPARATOR)
|
||
buffer[idx - 1] = 0;
|
||
do_spec_1 (buffer, 1, NULL_PTR);
|
||
/* Make this a separate argument. */
|
||
do_spec_1 (" ", 0, NULL_PTR);
|
||
}
|
||
}
|
||
}
|
||
free (buffer);
|
||
}
|
||
break;
|
||
|
||
case 'e':
|
||
/* {...:%efoo} means report an error with `foo' as error message
|
||
and don't execute any more commands for this file. */
|
||
{
|
||
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 'g':
|
||
case 'u':
|
||
case 'U':
|
||
if (save_temps_flag)
|
||
{
|
||
obstack_grow (&obstack, input_basename, basename_length);
|
||
delete_this_arg = 0;
|
||
}
|
||
else
|
||
{
|
||
#ifdef MKTEMP_EACH_FILE
|
||
/* ??? This has a problem: the total number of
|
||
values mktemp can return is limited.
|
||
That matters for the names of object files.
|
||
In 2.4, do something about that. */
|
||
struct temp_name *t;
|
||
char *suffix = p;
|
||
while (*p == '.' || isalpha (*p)
|
||
|| (p[0] == '%' && p[1] == 'O'))
|
||
p++;
|
||
|
||
/* See if we already have an association of %g/%u/%U and
|
||
suffix. */
|
||
for (t = temp_names; t; t = t->next)
|
||
if (t->length == p - suffix
|
||
&& strncmp (t->suffix, suffix, p - suffix) == 0
|
||
&& t->unique == (c != 'g'))
|
||
break;
|
||
|
||
/* Make a new association if needed. %u requires one. */
|
||
if (t == 0 || c == 'u')
|
||
{
|
||
if (t == 0)
|
||
{
|
||
t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
|
||
t->next = temp_names;
|
||
temp_names = t;
|
||
}
|
||
t->length = p - suffix;
|
||
t->suffix = save_string (suffix, p - suffix);
|
||
t->unique = (c != 'g');
|
||
choose_temp_base ();
|
||
t->filename = temp_filename;
|
||
t->filename_length = temp_filename_length;
|
||
}
|
||
|
||
obstack_grow (&obstack, t->filename, t->filename_length);
|
||
delete_this_arg = 1;
|
||
#else
|
||
obstack_grow (&obstack, temp_filename, temp_filename_length);
|
||
if (c == 'u' || c == 'U')
|
||
{
|
||
static int unique;
|
||
char buff[9];
|
||
if (c == 'u')
|
||
unique++;
|
||
sprintf (buff, "%d", unique);
|
||
obstack_grow (&obstack, buff, strlen (buff));
|
||
}
|
||
#endif
|
||
delete_this_arg = 1;
|
||
}
|
||
arg_going = 1;
|
||
break;
|
||
|
||
case 'i':
|
||
obstack_grow (&obstack, input_filename, input_filename_length);
|
||
arg_going = 1;
|
||
break;
|
||
|
||
case 'I':
|
||
{
|
||
struct prefix_list *pl = include_prefixes.plist;
|
||
|
||
if (gcc_exec_prefix)
|
||
{
|
||
do_spec_1 ("-iprefix", 1, NULL_PTR);
|
||
/* Make this a separate argument. */
|
||
do_spec_1 (" ", 0, NULL_PTR);
|
||
do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
|
||
do_spec_1 (" ", 0, NULL_PTR);
|
||
}
|
||
|
||
for (; pl; pl = pl->next)
|
||
{
|
||
do_spec_1 ("-isystem", 1, NULL_PTR);
|
||
/* Make this a separate argument. */
|
||
do_spec_1 (" ", 0, NULL_PTR);
|
||
do_spec_1 (pl->prefix, 1, NULL_PTR);
|
||
do_spec_1 (" ", 0, NULL_PTR);
|
||
}
|
||
}
|
||
break;
|
||
|
||
case 'o':
|
||
for (i = 0; i < n_infiles; i++)
|
||
store_arg (outfiles[i], 0, 0);
|
||
break;
|
||
|
||
case 'O':
|
||
obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
|
||
arg_going = 1;
|
||
break;
|
||
|
||
case 's':
|
||
this_is_library_file = 1;
|
||
break;
|
||
|
||
case 'w':
|
||
this_is_output_file = 1;
|
||
break;
|
||
|
||
case 'W':
|
||
{
|
||
int 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 != index)
|
||
record_temp_file (argbuf[argbuf_index - 1], 0, 1);
|
||
break;
|
||
}
|
||
|
||
/* %x{OPTION} records OPTION for %X to output. */
|
||
case 'x':
|
||
{
|
||
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. */
|
||
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] = string;
|
||
}
|
||
break;
|
||
|
||
/* Dump out the options accumulated previously using %x. */
|
||
case 'X':
|
||
for (i = 0; i < n_linker_options; i++)
|
||
{
|
||
do_spec_1 (linker_options[i], 1, NULL_PTR);
|
||
/* Make each accumulated option a separate argument. */
|
||
do_spec_1 (" ", 0, NULL_PTR);
|
||
}
|
||
break;
|
||
|
||
/* Dump out the options accumulated previously using -Wa,. */
|
||
case 'Y':
|
||
for (i = 0; i < n_assembler_options; i++)
|
||
{
|
||
do_spec_1 (assembler_options[i], 1, NULL_PTR);
|
||
/* Make each accumulated option a separate argument. */
|
||
do_spec_1 (" ", 0, NULL_PTR);
|
||
}
|
||
break;
|
||
|
||
/* Dump out the options accumulated previously using -Wp,. */
|
||
case 'Z':
|
||
for (i = 0; i < n_preprocessor_options; i++)
|
||
{
|
||
do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
|
||
/* Make each accumulated option a separate argument. */
|
||
do_spec_1 (" ", 0, NULL_PTR);
|
||
}
|
||
break;
|
||
|
||
/* Here are digits and numbers that just process
|
||
a certain constant string as a spec. */
|
||
|
||
case '1':
|
||
value = do_spec_1 (cc1_spec, 0, NULL_PTR);
|
||
if (value != 0)
|
||
return value;
|
||
break;
|
||
|
||
case '2':
|
||
value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
|
||
if (value != 0)
|
||
return value;
|
||
break;
|
||
|
||
case 'a':
|
||
value = do_spec_1 (asm_spec, 0, NULL_PTR);
|
||
if (value != 0)
|
||
return value;
|
||
break;
|
||
|
||
case 'A':
|
||
value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
|
||
if (value != 0)
|
||
return value;
|
||
break;
|
||
|
||
case 'c':
|
||
value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
|
||
if (value != 0)
|
||
return value;
|
||
break;
|
||
|
||
case 'C':
|
||
value = do_spec_1 (cpp_spec, 0, NULL_PTR);
|
||
if (value != 0)
|
||
return value;
|
||
break;
|
||
|
||
case 'E':
|
||
value = do_spec_1 (endfile_spec, 0, NULL_PTR);
|
||
if (value != 0)
|
||
return value;
|
||
break;
|
||
|
||
case 'l':
|
||
value = do_spec_1 (link_spec, 0, NULL_PTR);
|
||
if (value != 0)
|
||
return value;
|
||
break;
|
||
|
||
case 'L':
|
||
value = do_spec_1 (lib_spec, 0, NULL_PTR);
|
||
if (value != 0)
|
||
return value;
|
||
break;
|
||
|
||
case 'G':
|
||
value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
|
||
if (value != 0)
|
||
return value;
|
||
break;
|
||
|
||
case 'p':
|
||
{
|
||
char *x = (char *) alloca (strlen (cpp_predefines) + 1);
|
||
char *buf = x;
|
||
char *y;
|
||
|
||
/* Copy all of the -D options in CPP_PREDEFINES into BUF. */
|
||
y = cpp_predefines;
|
||
while (*y != 0)
|
||
{
|
||
if (! strncmp (y, "-D", 2))
|
||
/* Copy the whole option. */
|
||
while (*y && *y != ' ' && *y != '\t')
|
||
*x++ = *y++;
|
||
else if (*y == ' ' || *y == '\t')
|
||
/* Copy whitespace to the result. */
|
||
*x++ = *y++;
|
||
/* Don't copy other options. */
|
||
else
|
||
y++;
|
||
}
|
||
|
||
*x = 0;
|
||
|
||
value = do_spec_1 (buf, 0, NULL_PTR);
|
||
if (value != 0)
|
||
return value;
|
||
}
|
||
break;
|
||
|
||
case 'P':
|
||
{
|
||
char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
|
||
char *buf = x;
|
||
char *y;
|
||
|
||
/* Copy all of CPP_PREDEFINES into BUF,
|
||
but put __ after every -D and at the end of each arg. */
|
||
y = cpp_predefines;
|
||
while (*y != 0)
|
||
{
|
||
if (! strncmp (y, "-D", 2))
|
||
{
|
||
int flag = 0;
|
||
|
||
*x++ = *y++;
|
||
*x++ = *y++;
|
||
|
||
if (*y != '_'
|
||
|| (*(y+1) != '_' && ! isupper (*(y+1))))
|
||
{
|
||
/* Stick __ at front of macro name. */
|
||
*x++ = '_';
|
||
*x++ = '_';
|
||
/* Arrange to stick __ at the end as well. */
|
||
flag = 1;
|
||
}
|
||
|
||
/* Copy the macro name. */
|
||
while (*y && *y != '=' && *y != ' ' && *y != '\t')
|
||
*x++ = *y++;
|
||
|
||
if (flag)
|
||
{
|
||
*x++ = '_';
|
||
*x++ = '_';
|
||
}
|
||
|
||
/* Copy the value given, if any. */
|
||
while (*y && *y != ' ' && *y != '\t')
|
||
*x++ = *y++;
|
||
}
|
||
else if (*y == ' ' || *y == '\t')
|
||
/* Copy whitespace to the result. */
|
||
*x++ = *y++;
|
||
/* Don't copy -A options */
|
||
else
|
||
y++;
|
||
}
|
||
*x++ = ' ';
|
||
|
||
/* Copy all of CPP_PREDEFINES into BUF,
|
||
but put __ after every -D. */
|
||
y = cpp_predefines;
|
||
while (*y != 0)
|
||
{
|
||
if (! strncmp (y, "-D", 2))
|
||
{
|
||
y += 2;
|
||
|
||
if (*y != '_'
|
||
|| (*(y+1) != '_' && ! isupper (*(y+1))))
|
||
{
|
||
/* Stick -D__ at front of macro name. */
|
||
*x++ = '-';
|
||
*x++ = 'D';
|
||
*x++ = '_';
|
||
*x++ = '_';
|
||
|
||
/* Copy the macro name. */
|
||
while (*y && *y != '=' && *y != ' ' && *y != '\t')
|
||
*x++ = *y++;
|
||
|
||
/* Copy the value given, if any. */
|
||
while (*y && *y != ' ' && *y != '\t')
|
||
*x++ = *y++;
|
||
}
|
||
else
|
||
{
|
||
/* Do not copy this macro - we have just done it before */
|
||
while (*y && *y != ' ' && *y != '\t')
|
||
y++;
|
||
}
|
||
}
|
||
else if (*y == ' ' || *y == '\t')
|
||
/* Copy whitespace to the result. */
|
||
*x++ = *y++;
|
||
/* Don't copy -A options */
|
||
else
|
||
y++;
|
||
}
|
||
*x++ = ' ';
|
||
|
||
/* Copy all of the -A options in CPP_PREDEFINES into BUF. */
|
||
y = cpp_predefines;
|
||
while (*y != 0)
|
||
{
|
||
if (! strncmp (y, "-A", 2))
|
||
/* Copy the whole option. */
|
||
while (*y && *y != ' ' && *y != '\t')
|
||
*x++ = *y++;
|
||
else if (*y == ' ' || *y == '\t')
|
||
/* Copy whitespace to the result. */
|
||
*x++ = *y++;
|
||
/* Don't copy other options. */
|
||
else
|
||
y++;
|
||
}
|
||
|
||
*x = 0;
|
||
|
||
value = do_spec_1 (buf, 0, NULL_PTR);
|
||
if (value != 0)
|
||
return value;
|
||
}
|
||
break;
|
||
|
||
case 'S':
|
||
value = do_spec_1 (startfile_spec, 0, NULL_PTR);
|
||
if (value != 0)
|
||
return value;
|
||
break;
|
||
|
||
/* Here we define characters other than letters and digits. */
|
||
|
||
case '{':
|
||
p = handle_braces (p);
|
||
if (p == 0)
|
||
return -1;
|
||
break;
|
||
|
||
case '%':
|
||
obstack_1grow (&obstack, '%');
|
||
break;
|
||
|
||
case '*':
|
||
do_spec_1 (soft_matched_part, 1, NULL_PTR);
|
||
do_spec_1 (" ", 0, NULL_PTR);
|
||
break;
|
||
|
||
/* Process a string found as the value of a spec given by name.
|
||
This feature allows individual machine descriptions
|
||
to add and use their own specs.
|
||
%[...] modifies -D options the way %P does;
|
||
%(...) uses the spec unmodified. */
|
||
case '(':
|
||
case '[':
|
||
{
|
||
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 (strncmp (sl->name, name, len) == 0 && !sl->name[len])
|
||
{
|
||
name = sl->spec;
|
||
break;
|
||
}
|
||
|
||
if (sl)
|
||
{
|
||
if (c == '(')
|
||
{
|
||
value = do_spec_1 (name, 0, NULL_PTR);
|
||
if (value != 0)
|
||
return value;
|
||
}
|
||
else
|
||
{
|
||
char *x = (char *) alloca (strlen (name) * 2 + 1);
|
||
char *buf = x;
|
||
char *y = name;
|
||
|
||
/* 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;
|
||
}
|
||
else if (*y == ' ' || *y == 0)
|
||
{
|
||
*x++ = '_';
|
||
*x++ = '_';
|
||
if (*y == 0)
|
||
break;
|
||
else
|
||
*x++ = *y++;
|
||
}
|
||
else
|
||
*x++ = *y++;
|
||
}
|
||
*x = 0;
|
||
|
||
value = do_spec_1 (buf, 0, NULL_PTR);
|
||
if (value != 0)
|
||
return value;
|
||
}
|
||
}
|
||
|
||
/* Discard the closing paren or bracket. */
|
||
if (*p)
|
||
p++;
|
||
}
|
||
break;
|
||
|
||
case 'v':
|
||
{
|
||
int c1 = *p++; /* Select first or second version number. */
|
||
char *v = compiler_version;
|
||
char *q;
|
||
/* If desired, advance to second version number. */
|
||
if (c1 == '2')
|
||
{
|
||
/* Set P after the first period. */
|
||
while (*v != 0 && *v != ' ' && *v != '.')
|
||
v++;
|
||
if (*v == '.')
|
||
v++;
|
||
}
|
||
/* Set Q at the next period or at the end. */
|
||
q = v;
|
||
while (*q != 0 && *q != ' ' && *q != '.')
|
||
q++;
|
||
/* Empty string means zero. */
|
||
if (p == q)
|
||
{
|
||
v = "0";
|
||
q = v + 1;
|
||
}
|
||
/* Put that part into the command. */
|
||
obstack_grow (&obstack, v, q - v);
|
||
arg_going = 1;
|
||
}
|
||
break;
|
||
|
||
case '|':
|
||
if (input_from_pipe)
|
||
do_spec_1 ("-", 0, NULL_PTR);
|
||
break;
|
||
|
||
default:
|
||
abort ();
|
||
}
|
||
break;
|
||
|
||
case '\\':
|
||
/* Backslash: treat next character as ordinary. */
|
||
c = *p++;
|
||
|
||
/* fall through */
|
||
default:
|
||
/* Ordinary character: put it into the current argument. */
|
||
obstack_1grow (&obstack, c);
|
||
arg_going = 1;
|
||
}
|
||
|
||
return 0; /* End of string */
|
||
}
|
||
|
||
/* Return 0 if we call do_spec_1 and that returns -1. */
|
||
|
||
static char *
|
||
handle_braces (p)
|
||
register char *p;
|
||
{
|
||
register char *q;
|
||
char *filter;
|
||
int pipe = 0;
|
||
int negate = 0;
|
||
int suffix = 0;
|
||
|
||
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 = 1, ++p;
|
||
|
||
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)
|
||
abort ();
|
||
|
||
suffix = 1;
|
||
++p;
|
||
}
|
||
|
||
filter = p;
|
||
while (*p != ':' && *p != '}') p++;
|
||
if (*p != '}')
|
||
{
|
||
register int count = 1;
|
||
q = p + 1;
|
||
while (count > 0)
|
||
{
|
||
if (*q == '{')
|
||
count++;
|
||
else if (*q == '}')
|
||
count--;
|
||
else if (*q == 0)
|
||
abort ();
|
||
q++;
|
||
}
|
||
}
|
||
else
|
||
q = p + 1;
|
||
|
||
if (suffix)
|
||
{
|
||
int found = (input_suffix != 0
|
||
&& strlen (input_suffix) == p - filter
|
||
&& strncmp (input_suffix, filter, p - filter) == 0);
|
||
|
||
if (p[0] == '}')
|
||
abort ();
|
||
|
||
if (negate != found
|
||
&& do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
|
||
return 0;
|
||
|
||
return q;
|
||
}
|
||
else if (p[-1] == '*' && p[0] == '}')
|
||
{
|
||
/* Substitute all matching switches as separate args. */
|
||
register int i;
|
||
--p;
|
||
for (i = 0; i < n_switches; i++)
|
||
if (!strncmp (switches[i].part1, filter, p - filter)
|
||
&& check_live_switch (i, p - filter))
|
||
give_switch (i, 0);
|
||
}
|
||
else
|
||
{
|
||
/* Test for presence of the specified switch. */
|
||
register int i;
|
||
int present = 0;
|
||
|
||
/* If name specified ends in *, as in {x*:...},
|
||
check for %* and handle that case. */
|
||
if (p[-1] == '*' && !negate)
|
||
{
|
||
int substitution;
|
||
char *r = p;
|
||
|
||
/* First see whether we have %*. */
|
||
substitution = 0;
|
||
while (r < q)
|
||
{
|
||
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 (p + 1, q - p - 2);
|
||
|
||
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);
|
||
}
|
||
|
||
return q;
|
||
}
|
||
}
|
||
|
||
/* If name specified ends in *, as in {x*:...},
|
||
check for presence of any switch name starting with x. */
|
||
if (p[-1] == '*')
|
||
{
|
||
for (i = 0; i < n_switches; i++)
|
||
{
|
||
unsigned hard_match_len = p - filter - 1;
|
||
|
||
if (!strncmp (switches[i].part1, filter, hard_match_len)
|
||
&& check_live_switch (i, hard_match_len))
|
||
{
|
||
present = 1;
|
||
}
|
||
}
|
||
}
|
||
/* Otherwise, check for presence of exact name specified. */
|
||
else
|
||
{
|
||
for (i = 0; i < n_switches; i++)
|
||
{
|
||
if (!strncmp (switches[i].part1, filter, p - filter)
|
||
&& switches[i].part1[p - filter] == 0
|
||
&& check_live_switch (i, -1))
|
||
{
|
||
present = 1;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
/* If it is as desired (present for %{s...}, absent for %{-s...})
|
||
then substitute either the switch or the specified
|
||
conditional text. */
|
||
if (present != negate)
|
||
{
|
||
if (*p == '}')
|
||
{
|
||
give_switch (i, 0);
|
||
}
|
||
else
|
||
{
|
||
if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
|
||
return 0;
|
||
}
|
||
}
|
||
else if (pipe)
|
||
{
|
||
/* Here if a %{|...} conditional fails: output a minus sign,
|
||
which means "standard output" or "standard input". */
|
||
do_spec_1 ("-", 0, NULL_PTR);
|
||
}
|
||
}
|
||
|
||
return q;
|
||
}
|
||
|
||
/* 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;
|
||
{
|
||
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].valid = 1;
|
||
switches[switchnum].live_cond = -1;
|
||
return 0;
|
||
}
|
||
break;
|
||
|
||
case 'W': case 'f': case 'm':
|
||
if (! strncmp (name + 1, "no-", 3))
|
||
{
|
||
/* We have Xno-YYY, search for XYYY. */
|
||
for (i = switchnum + 1; i < n_switches; i++)
|
||
if (switches[i].part1[0] == name[0]
|
||
&& ! strcmp (&switches[i].part1[1], &name[4]))
|
||
{
|
||
switches[switchnum].valid = 1;
|
||
switches[switchnum].live_cond = -1;
|
||
return 0;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
/* We have XYYY, search for Xno-YYY. */
|
||
for (i = switchnum + 1; i < n_switches; i++)
|
||
if (switches[i].part1[0] == name[0]
|
||
&& switches[i].part1[1] == 'n'
|
||
&& switches[i].part1[2] == 'o'
|
||
&& switches[i].part1[3] == '-'
|
||
&& !strcmp (&switches[i].part1[4], &name[1]))
|
||
{
|
||
switches[switchnum].valid = 1;
|
||
switches[switchnum].live_cond = -1;
|
||
return 0;
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
|
||
/* Otherwise the switch is live. */
|
||
switches[switchnum].live_cond = 1;
|
||
return 1;
|
||
}
|
||
|
||
/* Pass a switch to the current accumulating command
|
||
in the same form that we received it.
|
||
SWITCHNUM identifies the switch; it is an index into
|
||
the vector of switches gcc received, which is `switches'.
|
||
This cannot fail since it never finishes a command line.
|
||
|
||
If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
|
||
|
||
static void
|
||
give_switch (switchnum, omit_first_word)
|
||
int switchnum;
|
||
int omit_first_word;
|
||
{
|
||
if (!omit_first_word)
|
||
{
|
||
do_spec_1 ("-", 0, NULL_PTR);
|
||
do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
|
||
}
|
||
do_spec_1 (" ", 0, NULL_PTR);
|
||
if (switches[switchnum].args != 0)
|
||
{
|
||
char **p;
|
||
for (p = switches[switchnum].args; *p; p++)
|
||
{
|
||
do_spec_1 (*p, 1, NULL_PTR);
|
||
do_spec_1 (" ", 0, NULL_PTR);
|
||
}
|
||
}
|
||
switches[switchnum].valid = 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 char *
|
||
find_file (name)
|
||
char *name;
|
||
{
|
||
char *newname;
|
||
|
||
/* Try multilib_dir if it is defined. */
|
||
if (multilib_dir != NULL)
|
||
{
|
||
char *try;
|
||
|
||
try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
|
||
strcpy (try, multilib_dir);
|
||
strcat (try, dir_separator_str);
|
||
strcat (try, name);
|
||
|
||
newname = find_a_file (&startfile_prefixes, try, R_OK);
|
||
|
||
/* If we don't find it in the multi library dir, then fall
|
||
through and look for it in the normal places. */
|
||
if (newname != NULL)
|
||
return newname;
|
||
}
|
||
|
||
newname = find_a_file (&startfile_prefixes, name, R_OK);
|
||
return newname ? newname : name;
|
||
}
|
||
|
||
/* Determine whether a directory exists. If LINKER, return 0 for
|
||
certain fixed names not needed by the linker. If not LINKER, it is
|
||
only important to return 0 if the host machine has a small ARG_MAX
|
||
limit. */
|
||
|
||
static int
|
||
is_directory (path1, path2, linker)
|
||
char *path1;
|
||
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. */
|
||
bcopy (path1, path, len1);
|
||
bcopy (path2, path + len1, len2);
|
||
cp = path + len1 + len2;
|
||
if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
|
||
*cp++ = DIR_SEPARATOR;
|
||
*cp++ = '.';
|
||
*cp = '\0';
|
||
|
||
/* Exclude directories that the linker is known to search. */
|
||
if (linker
|
||
&& ((cp - path == 6
|
||
&& strcmp (path, concat4 (dir_separator_str, "lib",
|
||
dir_separator_str, ".")) == 0)
|
||
|| (cp - path == 10
|
||
&& strcmp (path, concat6 (dir_separator_str, "usr",
|
||
dir_separator_str, "lib",
|
||
dir_separator_str, ".")) == 0)))
|
||
return 0;
|
||
|
||
return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
|
||
}
|
||
|
||
/* On fatal signals, delete all the temporary files. */
|
||
|
||
static void
|
||
fatal_error (signum)
|
||
int signum;
|
||
{
|
||
signal (signum, SIG_DFL);
|
||
delete_failure_queue ();
|
||
delete_temp_files ();
|
||
/* Get the same signal again, this time not handled,
|
||
so its normal effect occurs. */
|
||
kill (getpid (), signum);
|
||
}
|
||
|
||
int
|
||
main (argc, argv)
|
||
int argc;
|
||
char **argv;
|
||
{
|
||
register int i;
|
||
int j;
|
||
int value;
|
||
int linker_was_run = 0;
|
||
char *explicit_link_files;
|
||
char *specs_file;
|
||
char *p;
|
||
|
||
p = argv[0] + strlen (argv[0]);
|
||
while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
|
||
programname = p;
|
||
|
||
if (signal (SIGINT, SIG_IGN) != SIG_IGN)
|
||
signal (SIGINT, fatal_error);
|
||
#ifdef SIGHUP
|
||
if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
|
||
signal (SIGHUP, fatal_error);
|
||
#endif
|
||
if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
|
||
signal (SIGTERM, fatal_error);
|
||
#ifdef SIGPIPE
|
||
if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
|
||
signal (SIGPIPE, fatal_error);
|
||
#endif
|
||
|
||
argbuf_length = 10;
|
||
argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
|
||
|
||
obstack_init (&obstack);
|
||
|
||
/* Set up to remember the pathname of gcc and any options
|
||
needed for collect. We use argv[0] instead of programname because
|
||
we need the complete pathname. */
|
||
obstack_init (&collect_obstack);
|
||
obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
|
||
obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
|
||
putenv (obstack_finish (&collect_obstack));
|
||
|
||
#ifdef INIT_ENVIRONMENT
|
||
/* Set up any other necessary machine specific environment variables. */
|
||
putenv (INIT_ENVIRONMENT);
|
||
#endif
|
||
|
||
/* Choose directory for temp files. */
|
||
|
||
choose_temp_base ();
|
||
|
||
/* 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);
|
||
bcopy ((char *) default_compilers, (char *) compilers,
|
||
sizeof default_compilers);
|
||
n_compilers = n_default_compilers;
|
||
|
||
/* Read specs from a file if there is one. */
|
||
|
||
#ifndef FREEBSD_NATIVE
|
||
machine_suffix = concat4 (spec_machine, dir_separator_str,
|
||
spec_version, dir_separator_str);
|
||
just_machine_suffix = concat (spec_machine, dir_separator_str);
|
||
#endif
|
||
|
||
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);
|
||
|
||
/* If not cross-compiling, look for startfiles in the standard places. */
|
||
/* The fact that these are done here, after reading the specs file,
|
||
means that it cannot be found in these directories.
|
||
But that's okay. It should never be there anyway. */
|
||
if (!cross_compile)
|
||
{
|
||
#ifdef MD_EXEC_PREFIX
|
||
add_prefix (&exec_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
|
||
add_prefix (&startfile_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
|
||
#endif
|
||
|
||
#ifdef MD_STARTFILE_PREFIX
|
||
add_prefix (&startfile_prefixes, md_startfile_prefix, 0, 0, NULL_PTR);
|
||
#endif
|
||
|
||
#ifdef MD_STARTFILE_PREFIX_1
|
||
add_prefix (&startfile_prefixes, md_startfile_prefix_1, 0, 0, NULL_PTR);
|
||
#endif
|
||
|
||
/* If standard_startfile_prefix is relative, base it on
|
||
standard_exec_prefix. This lets us move the installed tree
|
||
as a unit. If GCC_EXEC_PREFIX is defined, base
|
||
standard_startfile_prefix on that as well. */
|
||
if (*standard_startfile_prefix == '/'
|
||
|| *standard_startfile_prefix == DIR_SEPARATOR)
|
||
add_prefix (&startfile_prefixes, standard_startfile_prefix, 0, 0,
|
||
NULL_PTR);
|
||
else
|
||
{
|
||
if (gcc_exec_prefix)
|
||
add_prefix (&startfile_prefixes,
|
||
concat3 (gcc_exec_prefix, machine_suffix,
|
||
standard_startfile_prefix),
|
||
0, 0, NULL_PTR);
|
||
add_prefix (&startfile_prefixes,
|
||
concat3 (standard_exec_prefix,
|
||
machine_suffix,
|
||
standard_startfile_prefix),
|
||
0, 0, NULL_PTR);
|
||
}
|
||
|
||
#ifndef FREEBSD_NATIVE
|
||
add_prefix (&startfile_prefixes, standard_startfile_prefix_1, 0, 0,
|
||
NULL_PTR);
|
||
add_prefix (&startfile_prefixes, standard_startfile_prefix_2, 0, 0,
|
||
NULL_PTR);
|
||
#if 0 /* Can cause surprises, and one can use -B./ instead. */
|
||
add_prefix (&startfile_prefixes, "./", 0, 1, NULL_PTR);
|
||
#endif
|
||
#endif /* FREEBSD_NATIVE */
|
||
|
||
}
|
||
else
|
||
{
|
||
if (*standard_startfile_prefix != DIR_SEPARATOR && gcc_exec_prefix)
|
||
add_prefix (&startfile_prefixes,
|
||
concat3 (gcc_exec_prefix, machine_suffix,
|
||
standard_startfile_prefix),
|
||
0, 0, NULL_PTR);
|
||
}
|
||
|
||
/* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
|
||
if (gcc_exec_prefix)
|
||
{
|
||
char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
|
||
+ strlen (spec_version)
|
||
+ strlen (spec_machine) + 3);
|
||
strcpy (temp, gcc_exec_prefix);
|
||
strcat (temp, spec_machine);
|
||
strcat (temp, dir_separator_str);
|
||
strcat (temp, spec_version);
|
||
strcat (temp, dir_separator_str);
|
||
gcc_exec_prefix = temp;
|
||
}
|
||
|
||
/* Now we have the specs.
|
||
Set the `valid' bits for switches that match anything in any spec. */
|
||
|
||
validate_all_switches ();
|
||
|
||
/* Now that we have the switches and the specs, set
|
||
the subdirectory based on the options. */
|
||
set_multilib_dir ();
|
||
|
||
/* Warn about any switches that no pass was interested in. */
|
||
|
||
for (i = 0; i < n_switches; i++)
|
||
if (! switches[i].valid)
|
||
error ("unrecognized option `-%s'", switches[i].part1);
|
||
|
||
/* Obey some of the options. */
|
||
|
||
if (print_search_dirs)
|
||
{
|
||
printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
|
||
printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
|
||
printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
|
||
exit (0);
|
||
}
|
||
|
||
if (print_file_name)
|
||
{
|
||
printf ("%s\n", find_file (print_file_name));
|
||
exit (0);
|
||
}
|
||
|
||
if (print_prog_name)
|
||
{
|
||
char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
|
||
printf ("%s\n", (newname ? newname : print_prog_name));
|
||
exit (0);
|
||
}
|
||
|
||
if (print_multi_lib)
|
||
{
|
||
print_multilib_info ();
|
||
exit (0);
|
||
}
|
||
|
||
if (print_multi_directory)
|
||
{
|
||
if (multilib_dir == NULL)
|
||
printf (".\n");
|
||
else
|
||
printf ("%s\n", multilib_dir);
|
||
exit (0);
|
||
}
|
||
|
||
if (verbose_flag)
|
||
{
|
||
if (! strcmp (version_string, compiler_version))
|
||
fprintf (stderr, "gcc version %s\n", version_string);
|
||
else
|
||
fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
|
||
version_string, compiler_version);
|
||
|
||
if (n_infiles == 0)
|
||
exit (0);
|
||
}
|
||
|
||
if (n_infiles == 0)
|
||
fatal ("No input files specified");
|
||
|
||
/* Make a place to record the compiler output file names
|
||
that correspond to the input files. */
|
||
|
||
outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
|
||
bzero ((char *) outfiles, n_infiles * sizeof (char *));
|
||
|
||
/* Record which files were specified explicitly as link input. */
|
||
|
||
explicit_link_files = xmalloc (n_infiles);
|
||
bzero (explicit_link_files, n_infiles);
|
||
|
||
for (i = 0; i < n_infiles; i++)
|
||
{
|
||
register struct compiler *cp = 0;
|
||
int this_file_error = 0;
|
||
|
||
/* Tell do_spec what to substitute for %i. */
|
||
|
||
input_filename = infiles[i].name;
|
||
input_filename_length = strlen (input_filename);
|
||
input_file_number = i;
|
||
|
||
/* Use the same thing in %o, unless cp->spec says otherwise. */
|
||
|
||
outfiles[i] = input_filename;
|
||
|
||
/* Figure out which compiler from the file's suffix. */
|
||
|
||
cp = lookup_compiler (infiles[i].name, input_filename_length,
|
||
infiles[i].language);
|
||
|
||
if (cp)
|
||
{
|
||
/* Ok, we found an applicable compiler. Run its spec. */
|
||
/* First say how much of input_filename to substitute for %b */
|
||
register char *p;
|
||
int len;
|
||
|
||
input_basename = input_filename;
|
||
for (p = input_filename; *p; p++)
|
||
if (*p == '/' || *p == DIR_SEPARATOR)
|
||
input_basename = p + 1;
|
||
|
||
/* Find a suffix starting with the last period,
|
||
and set basename_length to exclude that suffix. */
|
||
basename_length = strlen (input_basename);
|
||
p = input_basename + basename_length;
|
||
while (p != input_basename && *p != '.') --p;
|
||
if (*p == '.' && p != input_basename)
|
||
{
|
||
basename_length = p - input_basename;
|
||
input_suffix = p + 1;
|
||
}
|
||
else
|
||
input_suffix = "";
|
||
|
||
len = 0;
|
||
for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
|
||
if (cp->spec[j])
|
||
len += strlen (cp->spec[j]);
|
||
|
||
p = (char *) xmalloc (len + 1);
|
||
|
||
len = 0;
|
||
for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
|
||
if (cp->spec[j])
|
||
{
|
||
strcpy (p + len, cp->spec[j]);
|
||
len += strlen (cp->spec[j]);
|
||
}
|
||
|
||
value = do_spec (p);
|
||
free (p);
|
||
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 ();
|
||
}
|
||
|
||
/* Run ld to link all the compiler output files. */
|
||
|
||
if (error_count == 0)
|
||
{
|
||
int tmp = execution_count;
|
||
int i;
|
||
int first_time;
|
||
|
||
/* 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=");
|
||
|
||
/* 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; i < n_switches; i++)
|
||
{
|
||
char **args;
|
||
if (!first_time)
|
||
obstack_grow (&collect_obstack, " ", 1);
|
||
|
||
first_time = FALSE;
|
||
obstack_grow (&collect_obstack, "-", 1);
|
||
obstack_grow (&collect_obstack, switches[i].part1,
|
||
strlen (switches[i].part1));
|
||
|
||
for (args = switches[i].args; args && *args; args++)
|
||
{
|
||
obstack_grow (&collect_obstack, " ", 1);
|
||
obstack_grow (&collect_obstack, *args, strlen (*args));
|
||
}
|
||
}
|
||
obstack_grow (&collect_obstack, "\0", 1);
|
||
putenv (obstack_finish (&collect_obstack));
|
||
|
||
value = do_spec (link_command_spec);
|
||
if (value < 0)
|
||
error_count = 1;
|
||
linker_was_run = (tmp != execution_count);
|
||
}
|
||
|
||
/* Warn if a -B option was specified but the prefix was never used. */
|
||
unused_prefix_warnings (&exec_prefixes);
|
||
unused_prefix_warnings (&startfile_prefixes);
|
||
|
||
/* If options said don't run linker,
|
||
complain about input files to be given to the linker. */
|
||
|
||
if (! linker_was_run && error_count == 0)
|
||
for (i = 0; i < n_infiles; i++)
|
||
if (explicit_link_files[i])
|
||
error ("%s: linker input file unused since linking not done",
|
||
outfiles[i]);
|
||
|
||
/* Delete some or all of the temporary files we made. */
|
||
|
||
if (error_count)
|
||
delete_failure_queue ();
|
||
delete_temp_files ();
|
||
|
||
exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
|
||
/* NOTREACHED */
|
||
return 0;
|
||
}
|
||
|
||
/* Find the proper compilation spec for the file name NAME,
|
||
whose length is LENGTH. LANGUAGE is the specified language,
|
||
or 0 if none specified. */
|
||
|
||
static struct compiler *
|
||
lookup_compiler (name, length, language)
|
||
char *name;
|
||
int length;
|
||
char *language;
|
||
{
|
||
struct compiler *cp;
|
||
|
||
/* Look for the language, if one is spec'd. */
|
||
if (language != 0)
|
||
{
|
||
for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
|
||
{
|
||
if (language != 0)
|
||
{
|
||
if (cp->suffix[0] == '@'
|
||
&& !strcmp (cp->suffix + 1, language))
|
||
return cp;
|
||
}
|
||
}
|
||
error ("language %s not recognized", language);
|
||
}
|
||
|
||
/* Look for a suffix. */
|
||
for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
|
||
{
|
||
if (/* The suffix `-' matches only the file name `-'. */
|
||
(!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
|
||
||
|
||
(strlen (cp->suffix) < length
|
||
/* See if the suffix matches the end of NAME. */
|
||
#ifdef OS2
|
||
&& (!strcmp (cp->suffix,
|
||
name + length - strlen (cp->suffix))
|
||
|| !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
|
||
&& !strcasecmp (cp->suffix,
|
||
name + length - strlen (cp->suffix)))))
|
||
#else
|
||
&& !strcmp (cp->suffix,
|
||
name + length - strlen (cp->suffix))))
|
||
#endif
|
||
{
|
||
if (cp->spec[0][0] == '@')
|
||
{
|
||
struct compiler *new;
|
||
/* An alias entry maps a suffix to a language.
|
||
Search for the language; pass 0 for NAME and LENGTH
|
||
to avoid infinite recursion if language not found.
|
||
Construct the new compiler spec. */
|
||
language = cp->spec[0] + 1;
|
||
new = (struct compiler *) xmalloc (sizeof (struct compiler));
|
||
new->suffix = cp->suffix;
|
||
bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
|
||
(char *) new->spec, sizeof new->spec);
|
||
return new;
|
||
}
|
||
/* A non-alias entry: return it. */
|
||
return cp;
|
||
}
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
char *
|
||
xmalloc (size)
|
||
unsigned size;
|
||
{
|
||
register char *value = (char *) malloc (size);
|
||
if (value == 0)
|
||
fatal ("virtual memory exhausted");
|
||
return value;
|
||
}
|
||
|
||
char *
|
||
xrealloc (ptr, size)
|
||
char *ptr;
|
||
unsigned size;
|
||
{
|
||
register char *value = (char *) realloc (ptr, size);
|
||
if (value == 0)
|
||
fatal ("virtual memory exhausted");
|
||
return value;
|
||
}
|
||
|
||
/* Return a newly-allocated string whose contents concatenate those of s1, s2 */
|
||
|
||
static char *
|
||
concat (s1, s2)
|
||
char *s1, *s2;
|
||
{
|
||
int len1 = strlen (s1);
|
||
int len2 = strlen (s2);
|
||
char *result = xmalloc (len1 + len2 + 1);
|
||
|
||
strcpy (result, s1);
|
||
strcpy (result + len1, s2);
|
||
*(result + len1 + len2) = 0;
|
||
|
||
return result;
|
||
}
|
||
|
||
static char *
|
||
concat3 (s1, s2, s3)
|
||
char *s1, *s2, *s3;
|
||
{
|
||
return concat (concat (s1, s2), s3);
|
||
}
|
||
|
||
static char *
|
||
concat4 (s1, s2, s3, s4)
|
||
char *s1, *s2, *s3, *s4;
|
||
{
|
||
return concat (concat (s1, s2), concat (s3, s4));
|
||
}
|
||
|
||
static char *
|
||
concat6 (s1, s2, s3, s4, s5, s6)
|
||
char *s1, *s2, *s3, *s4, *s5, *s6;
|
||
{
|
||
return concat3 (concat (s1, s2), concat (s3, s4), concat (s5, s6));
|
||
}
|
||
|
||
static char *
|
||
save_string (s, len)
|
||
char *s;
|
||
int len;
|
||
{
|
||
register char *result = xmalloc (len + 1);
|
||
|
||
bcopy (s, result, len);
|
||
result[len] = 0;
|
||
return result;
|
||
}
|
||
|
||
static void
|
||
pfatal_with_name (name)
|
||
char *name;
|
||
{
|
||
char *s;
|
||
|
||
if (errno < sys_nerr)
|
||
s = concat ("%s: ", my_strerror( errno ));
|
||
else
|
||
s = "cannot open `%s'";
|
||
fatal (s, name);
|
||
}
|
||
|
||
static void
|
||
perror_with_name (name)
|
||
char *name;
|
||
{
|
||
char *s;
|
||
|
||
if (errno < sys_nerr)
|
||
s = concat ("%s: ", my_strerror( errno ));
|
||
else
|
||
s = "cannot open `%s'";
|
||
error (s, name);
|
||
}
|
||
|
||
static void
|
||
perror_exec (name)
|
||
char *name;
|
||
{
|
||
char *s;
|
||
|
||
if (errno < sys_nerr)
|
||
s = concat ("installation problem, cannot exec `%s': ",
|
||
my_strerror (errno));
|
||
else
|
||
s = "installation problem, cannot exec `%s'";
|
||
error (s, name);
|
||
}
|
||
|
||
/* More 'friendly' abort that prints the line and file.
|
||
config.h can #define abort fancy_abort if you like that sort of thing. */
|
||
|
||
void
|
||
fancy_abort ()
|
||
{
|
||
fatal ("Internal gcc abort.");
|
||
}
|
||
|
||
#ifdef HAVE_VPRINTF
|
||
|
||
/* Output an error message and exit */
|
||
|
||
static void
|
||
fatal VPROTO((char *format, ...))
|
||
{
|
||
#ifndef __STDC__
|
||
char *format;
|
||
#endif
|
||
va_list ap;
|
||
|
||
VA_START (ap, format);
|
||
|
||
#ifndef __STDC__
|
||
format = va_arg (ap, char*);
|
||
#endif
|
||
|
||
fprintf (stderr, "%s: ", programname);
|
||
vfprintf (stderr, format, ap);
|
||
va_end (ap);
|
||
fprintf (stderr, "\n");
|
||
delete_temp_files ();
|
||
exit (1);
|
||
}
|
||
|
||
static void
|
||
error VPROTO((char *format, ...))
|
||
{
|
||
#ifndef __STDC__
|
||
char *format;
|
||
#endif
|
||
va_list ap;
|
||
|
||
VA_START (ap, format);
|
||
|
||
#ifndef __STDC__
|
||
format = va_arg (ap, char*);
|
||
#endif
|
||
|
||
fprintf (stderr, "%s: ", programname);
|
||
vfprintf (stderr, format, ap);
|
||
va_end (ap);
|
||
|
||
fprintf (stderr, "\n");
|
||
}
|
||
|
||
#else /* not HAVE_VPRINTF */
|
||
|
||
static void
|
||
fatal (msg, arg1, arg2)
|
||
char *msg, *arg1, *arg2;
|
||
{
|
||
error (msg, arg1, arg2);
|
||
delete_temp_files ();
|
||
exit (1);
|
||
}
|
||
|
||
static void
|
||
error (msg, arg1, arg2)
|
||
char *msg, *arg1, *arg2;
|
||
{
|
||
fprintf (stderr, "%s: ", programname);
|
||
fprintf (stderr, msg, arg1, arg2);
|
||
fprintf (stderr, "\n");
|
||
}
|
||
|
||
#endif /* not HAVE_VPRINTF */
|
||
|
||
|
||
static void
|
||
validate_all_switches ()
|
||
{
|
||
struct compiler *comp;
|
||
register char *p;
|
||
register char c;
|
||
struct spec_list *spec;
|
||
|
||
for (comp = compilers; comp->spec[0]; comp++)
|
||
{
|
||
int i;
|
||
for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
|
||
{
|
||
p = comp->spec[i];
|
||
while (c = *p++)
|
||
if (c == '%' && *p == '{')
|
||
/* We have a switch spec. */
|
||
validate_switches (p + 1);
|
||
}
|
||
}
|
||
|
||
/* look through the linked list of extra specs read from the specs file */
|
||
for (spec = specs; spec ; spec = spec->next)
|
||
{
|
||
p = spec->spec;
|
||
while (c = *p++)
|
||
if (c == '%' && *p == '{')
|
||
/* We have a switch spec. */
|
||
validate_switches (p + 1);
|
||
}
|
||
|
||
p = link_command_spec;
|
||
while (c = *p++)
|
||
if (c == '%' && *p == '{')
|
||
/* We have a switch spec. */
|
||
validate_switches (p + 1);
|
||
|
||
/* Now notice switches mentioned in the machine-specific specs. */
|
||
|
||
p = asm_spec;
|
||
while (c = *p++)
|
||
if (c == '%' && *p == '{')
|
||
/* We have a switch spec. */
|
||
validate_switches (p + 1);
|
||
|
||
p = asm_final_spec;
|
||
while (c = *p++)
|
||
if (c == '%' && *p == '{')
|
||
/* We have a switch spec. */
|
||
validate_switches (p + 1);
|
||
|
||
p = cpp_spec;
|
||
while (c = *p++)
|
||
if (c == '%' && *p == '{')
|
||
/* We have a switch spec. */
|
||
validate_switches (p + 1);
|
||
|
||
p = signed_char_spec;
|
||
while (c = *p++)
|
||
if (c == '%' && *p == '{')
|
||
/* We have a switch spec. */
|
||
validate_switches (p + 1);
|
||
|
||
p = cc1_spec;
|
||
while (c = *p++)
|
||
if (c == '%' && *p == '{')
|
||
/* We have a switch spec. */
|
||
validate_switches (p + 1);
|
||
|
||
p = cc1plus_spec;
|
||
while (c = *p++)
|
||
if (c == '%' && *p == '{')
|
||
/* We have a switch spec. */
|
||
validate_switches (p + 1);
|
||
|
||
p = link_spec;
|
||
while (c = *p++)
|
||
if (c == '%' && *p == '{')
|
||
/* We have a switch spec. */
|
||
validate_switches (p + 1);
|
||
|
||
p = lib_spec;
|
||
while (c = *p++)
|
||
if (c == '%' && *p == '{')
|
||
/* We have a switch spec. */
|
||
validate_switches (p + 1);
|
||
|
||
p = libgcc_spec;
|
||
while (c = *p++)
|
||
if (c == '%' && *p == '{')
|
||
/* We have a switch spec. */
|
||
validate_switches (p + 1);
|
||
|
||
p = startfile_spec;
|
||
while (c = *p++)
|
||
if (c == '%' && *p == '{')
|
||
/* We have a switch spec. */
|
||
validate_switches (p + 1);
|
||
}
|
||
|
||
/* Look at the switch-name that comes after START
|
||
and mark as valid all supplied switches that match it. */
|
||
|
||
static void
|
||
validate_switches (start)
|
||
char *start;
|
||
{
|
||
register char *p = start;
|
||
char *filter;
|
||
register int i;
|
||
int suffix = 0;
|
||
|
||
if (*p == '|')
|
||
++p;
|
||
|
||
if (*p == '!')
|
||
++p;
|
||
|
||
if (*p == '.')
|
||
suffix = 1, ++p;
|
||
|
||
filter = p;
|
||
while (*p != ':' && *p != '}') p++;
|
||
|
||
if (suffix)
|
||
;
|
||
else if (p[-1] == '*')
|
||
{
|
||
/* Mark all matching switches as valid. */
|
||
--p;
|
||
for (i = 0; i < n_switches; i++)
|
||
if (!strncmp (switches[i].part1, filter, p - filter))
|
||
switches[i].valid = 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].valid = 1;
|
||
}
|
||
}
|
||
}
|
||
|
||
/* Check whether a particular argument was used. */
|
||
|
||
static int
|
||
used_arg (p, len)
|
||
char *p;
|
||
int len;
|
||
{
|
||
int i;
|
||
|
||
for (i = 0; i < n_switches; i++)
|
||
if (! strncmp (switches[i].part1, p, len)
|
||
&& strlen (switches[i].part1) == len)
|
||
return 1;
|
||
return 0;
|
||
}
|
||
|
||
/* Check whether a particular argument is a default argument. */
|
||
|
||
#ifndef MULTILIB_DEFAULTS
|
||
#define MULTILIB_DEFAULTS { NULL }
|
||
#endif
|
||
|
||
static char *multilib_defaults[] = MULTILIB_DEFAULTS;
|
||
|
||
static int
|
||
default_arg (p, len)
|
||
char *p;
|
||
int len;
|
||
{
|
||
int count = sizeof multilib_defaults / sizeof multilib_defaults[0];
|
||
int i;
|
||
|
||
for (i = 0; i < count; i++)
|
||
if (multilib_defaults[i] != NULL
|
||
&& strncmp (multilib_defaults[i], p, len) == 0
|
||
&& multilib_defaults[i][len] == '\0')
|
||
return 1;
|
||
|
||
return 0;
|
||
}
|
||
|
||
/* Work out the subdirectory to use based on the
|
||
options. The format of multilib_select is a list of elements.
|
||
Each element is a subdirectory name followed by a list of options
|
||
followed by a semicolon. gcc will consider each line in turn. If
|
||
none of the options beginning with an exclamation point are
|
||
present, and all of the other options are present, that
|
||
subdirectory will be used. */
|
||
|
||
static void
|
||
set_multilib_dir ()
|
||
{
|
||
char *p = multilib_select;
|
||
int this_path_len;
|
||
char *this_path, *this_arg;
|
||
int not_arg;
|
||
int ok;
|
||
|
||
while (*p != '\0')
|
||
{
|
||
/* Ignore newlines. */
|
||
if (*p == '\n')
|
||
{
|
||
++p;
|
||
continue;
|
||
}
|
||
|
||
/* Get the initial path. */
|
||
this_path = p;
|
||
while (*p != ' ')
|
||
{
|
||
if (*p == '\0')
|
||
abort ();
|
||
++p;
|
||
}
|
||
this_path_len = p - this_path;
|
||
|
||
/* Check the arguments. */
|
||
ok = 1;
|
||
++p;
|
||
while (*p != ';')
|
||
{
|
||
if (*p == '\0')
|
||
abort ();
|
||
|
||
if (! ok)
|
||
{
|
||
++p;
|
||
continue;
|
||
}
|
||
|
||
this_arg = p;
|
||
while (*p != ' ' && *p != ';')
|
||
{
|
||
if (*p == '\0')
|
||
abort ();
|
||
++p;
|
||
}
|
||
|
||
if (*this_arg != '!')
|
||
not_arg = 0;
|
||
else
|
||
{
|
||
not_arg = 1;
|
||
++this_arg;
|
||
}
|
||
|
||
/* If this is a default argument, we can just ignore it.
|
||
This is true even if this_arg begins with '!'. Beginning
|
||
with '!' does not mean that this argument is necessarily
|
||
inappropriate for this library: it merely means that
|
||
there is a more specific library which uses this
|
||
argument. If this argument is a default, we need not
|
||
consider that more specific library. */
|
||
if (! default_arg (this_arg, p - this_arg))
|
||
{
|
||
ok = used_arg (this_arg, p - this_arg);
|
||
if (not_arg)
|
||
ok = ! ok;
|
||
}
|
||
|
||
if (*p == ' ')
|
||
++p;
|
||
}
|
||
|
||
if (ok)
|
||
{
|
||
if (this_path_len != 1
|
||
|| this_path[0] != '.')
|
||
{
|
||
multilib_dir = xmalloc (this_path_len + 1);
|
||
strncpy (multilib_dir, this_path, this_path_len);
|
||
multilib_dir[this_path_len] = '\0';
|
||
}
|
||
break;
|
||
}
|
||
|
||
++p;
|
||
}
|
||
}
|
||
|
||
/* Print out the multiple library subdirectory selection
|
||
information. This prints out a series of lines. Each line looks
|
||
like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
|
||
required. Only the desired options are printed out, the negative
|
||
matches. The options are print without a leading dash. There are
|
||
no spaces to make it easy to use the information in the shell.
|
||
Each subdirectory is printed only once. This assumes the ordering
|
||
generated by the genmultilib script. */
|
||
|
||
static void
|
||
print_multilib_info ()
|
||
{
|
||
char *p = multilib_select;
|
||
char *last_path = 0, *this_path;
|
||
int skip;
|
||
int last_path_len = 0;
|
||
|
||
while (*p != '\0')
|
||
{
|
||
/* Ignore newlines. */
|
||
if (*p == '\n')
|
||
{
|
||
++p;
|
||
continue;
|
||
}
|
||
|
||
/* Get the initial path. */
|
||
this_path = p;
|
||
while (*p != ' ')
|
||
{
|
||
if (*p == '\0')
|
||
abort ();
|
||
++p;
|
||
}
|
||
|
||
/* If this is a duplicate, skip it. */
|
||
skip = (last_path != 0 && p - this_path == last_path_len
|
||
&& ! strncmp (last_path, this_path, last_path_len));
|
||
|
||
last_path = this_path;
|
||
last_path_len = p - this_path;
|
||
|
||
/* If this directory requires any default arguments, we can skip
|
||
it. We will already have printed a directory identical to
|
||
this one which does not require that default argument. */
|
||
if (! skip)
|
||
{
|
||
char *q;
|
||
|
||
q = p + 1;
|
||
while (*q != ';')
|
||
{
|
||
char *arg;
|
||
|
||
if (*q == '\0')
|
||
abort ();
|
||
|
||
if (*q == '!')
|
||
arg = NULL;
|
||
else
|
||
arg = q;
|
||
|
||
while (*q != ' ' && *q != ';')
|
||
{
|
||
if (*q == '\0')
|
||
abort ();
|
||
++q;
|
||
}
|
||
|
||
if (arg != NULL
|
||
&& default_arg (arg, q - arg))
|
||
{
|
||
skip = 1;
|
||
break;
|
||
}
|
||
|
||
if (*q == ' ')
|
||
++q;
|
||
}
|
||
}
|
||
|
||
if (! skip)
|
||
{
|
||
char *p1;
|
||
|
||
for (p1 = last_path; p1 < p; p1++)
|
||
putchar (*p1);
|
||
putchar (';');
|
||
}
|
||
|
||
++p;
|
||
while (*p != ';')
|
||
{
|
||
int use_arg;
|
||
|
||
if (*p == '\0')
|
||
abort ();
|
||
|
||
if (skip)
|
||
{
|
||
++p;
|
||
continue;
|
||
}
|
||
|
||
use_arg = *p != '!';
|
||
|
||
if (use_arg)
|
||
putchar ('@');
|
||
|
||
while (*p != ' ' && *p != ';')
|
||
{
|
||
if (*p == '\0')
|
||
abort ();
|
||
if (use_arg)
|
||
putchar (*p);
|
||
++p;
|
||
}
|
||
|
||
if (*p == ' ')
|
||
++p;
|
||
}
|
||
|
||
if (! skip)
|
||
putchar ('\n');
|
||
|
||
++p;
|
||
}
|
||
}
|