f3226a9001
* gcc.c (The Specs Language): Document spec functions. (static_spec_functions, lookup_spec_function) (eval_spec_function, handle_spec_function) (if_exists_spec_function, alloc_args): New. (execute): Abort if processing_spec_function is true. (do_spec_1): Hand off spec to handle_spec_function if %: is encountered. If processing_spec_function is true, end any pending argument when the end of the string is reached. (main): Use alloc_args to allocate the initial argument vector. * gcc.h (struct spec_function): New. (lang_specific_spec_functions): New extern. * config/netbsd-elf.h (STARTFILE_SPEC): Add if-exists(crti%O%s). (ENDFILE_SPEC): Add if-exists(crtn%O%s). * config/alpha/netbsd.h (ENDFILE_SPEC): Likewise. * doc/invoke.texi: Document spec functions. * cppspec.c (lang_specific_spec_functions): New. * gccspec.c: Likewise. * g++spec.c (lang_specific_spec_functions): New. * g77spec.c (lang_specific_spec_functions): New. * jvspec.c (lang_specific_spec_functions): New. From-SVN: r59241
110 lines
2.8 KiB
C
110 lines
2.8 KiB
C
/* Specific flags and argument handling of the C front-end.
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Copyright (C) 1999, 2001 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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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 GCC; see the file COPYING. If not, write to the Free
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Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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#include "config.h"
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#include "system.h"
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#include "gcc.h"
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/* Filter argc and argv before processing by the gcc driver proper. */
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void
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lang_specific_driver (in_argc, in_argv, in_added_libraries)
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int *in_argc ATTRIBUTE_UNUSED;
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const char *const **in_argv ATTRIBUTE_UNUSED;
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int *in_added_libraries ATTRIBUTE_UNUSED;
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{
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#ifdef ENABLE_SHARED_LIBGCC
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int i;
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/* The new argument list will be contained in this. */
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const char **arglist;
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/* True if we should add -shared-libgcc to the command-line. */
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int shared_libgcc = 0;
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/* The total number of arguments with the new stuff. */
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int argc;
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/* The argument list. */
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const char *const *argv;
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argc = *in_argc;
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argv = *in_argv;
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for (i = 1; i < argc; i++)
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{
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if (argv[i][0] == '-')
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{
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if (strcmp (argv[i], "-static-libgcc") == 0
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|| strcmp (argv[i], "-static") == 0)
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return;
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}
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else
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{
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int len;
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/* If the filename ends in .m or .mi, we are compiling ObjC
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and want to pass -shared-libgcc. */
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len = strlen (argv[i]);
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if ((len > 2 && argv[i][len - 2] == '.' && argv[i][len - 1] == 'm')
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|| (len > 3 && argv[i][len - 3] == '.' && argv[i][len - 2] == 'm'
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&& argv[i][len - 1] == 'i'))
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shared_libgcc = 1;
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}
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}
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if (shared_libgcc)
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{
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/* Make sure to have room for the trailing NULL argument. */
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arglist = (const char **) xmalloc ((argc+2) * sizeof (char *));
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i = 0;
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do
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{
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arglist[i] = argv[i];
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i++;
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}
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while (i < argc);
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arglist[i++] = "-shared-libgcc";
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arglist[i] = NULL;
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*in_argc = i;
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*in_argv = arglist;
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}
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#endif
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}
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/* Called before linking. Returns 0 on success and -1 on failure. */
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int
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lang_specific_pre_link ()
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{
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return 0; /* Not used for C. */
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}
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/* Number of extra output files that lang_specific_pre_link may generate. */
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int lang_specific_extra_outfiles = 0; /* Not used for C. */
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/* Table of language-specific spec functions. */
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const struct spec_function lang_specific_spec_functions[] =
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{
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{ 0, 0 }
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};
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