Daily bump.
[official-gcc.git] / gcc / gccspec.c
blob867cbd52e05de306c270a0e64144f165039bc9ae
1 /* Specific flags and argument handling of the C front-end.
2 Copyright (C) 1999, 2001 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 2, or (at your option) any later
9 version.
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 for more details.
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING. If not, write to the Free
18 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
19 02111-1307, USA. */
21 #include "config.h"
22 #include "system.h"
23 #include "gcc.h"
25 /* Filter argc and argv before processing by the gcc driver proper. */
26 void
27 lang_specific_driver (in_argc, in_argv, in_added_libraries)
28 int *in_argc ATTRIBUTE_UNUSED;
29 const char *const **in_argv ATTRIBUTE_UNUSED;
30 int *in_added_libraries ATTRIBUTE_UNUSED;
32 #ifdef ENABLE_SHARED_LIBGCC
33 int i;
35 /* The new argument list will be contained in this. */
36 const char **arglist;
38 /* True if we should add -shared-libgcc to the command-line. */
39 int shared_libgcc = 0;
41 /* The total number of arguments with the new stuff. */
42 int argc;
44 /* The argument list. */
45 const char *const *argv;
47 argc = *in_argc;
48 argv = *in_argv;
50 for (i = 1; i < argc; i++)
52 if (argv[i][0] == '-')
54 if (strcmp (argv[i], "-static-libgcc") == 0
55 || strcmp (argv[i], "-static") == 0)
56 return;
58 else
60 int len;
62 /* If the filename ends in .m or .mi, we are compiling ObjC
63 and want to pass -shared-libgcc. */
64 len = strlen (argv[i]);
65 if ((len > 2 && argv[i][len - 2] == '.' && argv[i][len - 1] == 'm')
66 || (len > 3 && argv[i][len - 3] == '.' && argv[i][len - 2] == 'm'
67 && argv[i][len - 1] == 'i'))
68 shared_libgcc = 1;
72 if (shared_libgcc)
74 /* Make sure to have room for the trailing NULL argument. */
75 arglist = (const char **) xmalloc ((argc+2) * sizeof (char *));
77 i = 0;
80 arglist[i] = argv[i];
81 i++;
83 while (i < argc);
85 arglist[i++] = "-shared-libgcc";
87 arglist[i] = NULL;
89 *in_argc = i;
90 *in_argv = arglist;
92 #endif
95 /* Called before linking. Returns 0 on success and -1 on failure. */
96 int
97 lang_specific_pre_link ()
99 return 0; /* Not used for C. */
102 /* Number of extra output files that lang_specific_pre_link may generate. */
103 int lang_specific_extra_outfiles = 0; /* Not used for C. */