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/* Specific flags and argument handling of the C front-end.
Copyright (C) 1999, 2001, 2003, 2007 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "gcc.h"
/* Filter argc and argv before processing by the gcc driver proper. */
void
lang_specific_driver (int *in_argc ATTRIBUTE_UNUSED,
const char *const **in_argv ATTRIBUTE_UNUSED,
int *in_added_libraries ATTRIBUTE_UNUSED)
{
/* Systems which use the NeXT runtime by default should arrange
for the shared libgcc to be used when -fgnu-runtime is passed
through specs. */
#if defined(ENABLE_SHARED_LIBGCC) && ! defined(NEXT_OBJC_RUNTIME)
int i;
/* The new argument list will be contained in this. */
const char **arglist;
/* True if we should add -shared-libgcc to the command-line. */
int shared_libgcc = 0;
/* The total number of arguments with the new stuff. */
int argc;
/* The argument list. */
const char *const *argv;
argc = *in_argc;
argv = *in_argv;
for (i = 1; i < argc; i++)
{
if (argv[i][0] == '-')
{
if (strcmp (argv[i], "-static-libgcc") == 0
|| strcmp (argv[i], "-static") == 0)
return;
}
else
{
int len;
/* If the filename ends in .m or .mi, we are compiling ObjC
and want to pass -shared-libgcc. */
len = strlen (argv[i]);
if ((len > 2 && argv[i][len - 2] == '.' && argv[i][len - 1] == 'm')
|| (len > 3 && argv[i][len - 3] == '.' && argv[i][len - 2] == 'm'
&& argv[i][len - 1] == 'i'))
shared_libgcc = 1;
}
}
if (shared_libgcc)
{
/* Make sure to have room for the trailing NULL argument. */
arglist = XNEWVEC (const char *, argc + 2);
i = 0;
do
{
arglist[i] = argv[i];
i++;
}
while (i < argc);
arglist[i++] = "-shared-libgcc";
arglist[i] = NULL;
*in_argc = i;
*in_argv = arglist;
}
#endif
}
/* Called before linking. Returns 0 on success and -1 on failure. */
int
lang_specific_pre_link (void)
{
return 0; /* Not used for C. */
}
/* Number of extra output files that lang_specific_pre_link may generate. */
int lang_specific_extra_outfiles = 0; /* Not used for C. */
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