PR target/61794
[official-gcc.git] / gcc / c / gccspec.c
blob34a057ff9cae47ea72188100cd6362e6daaad725
1 /* Specific flags and argument handling of the C front-end.
2 Copyright (C) 1999-2014 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 3, 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 COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
20 #include "config.h"
21 #include "system.h"
22 #include "coretypes.h"
23 #include "tm.h"
24 #include "gcc.h"
25 #include "opts.h"
27 /* Filter command line before processing by the gcc driver proper. */
28 void
29 lang_specific_driver (struct cl_decoded_option **in_decoded_options ATTRIBUTE_UNUSED,
30 unsigned int *in_decoded_options_count ATTRIBUTE_UNUSED,
31 int *in_added_libraries ATTRIBUTE_UNUSED)
33 /* Systems which use the NeXT runtime by default should arrange
34 for the shared libgcc to be used when -fgnu-runtime is passed
35 through specs. */
36 #if defined(ENABLE_SHARED_LIBGCC) && ! NEXT_OBJC_RUNTIME
37 unsigned int i;
39 /* The new argument list will be contained in this. */
40 struct cl_decoded_option *new_decoded_options;
42 /* True if we should add -shared-libgcc to the command-line. */
43 int shared_libgcc = 0;
45 /* The total number of arguments with the new stuff. */
46 unsigned int argc;
48 /* The argument list. */
49 struct cl_decoded_option *decoded_options;
51 argc = *in_decoded_options_count;
52 decoded_options = *in_decoded_options;
54 for (i = 1; i < argc; i++)
56 switch (decoded_options[i].opt_index)
58 case OPT_static_libgcc:
59 case OPT_static:
60 return;
62 case OPT_SPECIAL_input_file:
64 const char *file = decoded_options[i].arg;
65 int len;
67 /* If the filename ends in .m or .mi, we are compiling
68 ObjC and want to pass -shared-libgcc. */
69 len = strlen (file);
70 if ((len > 2 && file[len - 2] == '.' && file[len - 1] == 'm')
71 || (len > 3 && file[len - 3] == '.' && file[len - 2] == 'm'
72 && file[len - 1] == 'i'))
73 shared_libgcc = 1;
75 break;
79 if (shared_libgcc)
81 new_decoded_options = XNEWVEC (struct cl_decoded_option, argc + 1);
83 i = 0;
86 new_decoded_options[i] = decoded_options[i];
87 i++;
89 while (i < argc);
91 generate_option (OPT_shared_libgcc, NULL, 1, CL_DRIVER,
92 &new_decoded_options[i++]);
94 *in_decoded_options_count = i;
95 *in_decoded_options = new_decoded_options;
97 #endif
100 /* Called before linking. Returns 0 on success and -1 on failure. */
102 lang_specific_pre_link (void)
104 return 0; /* Not used for C. */
107 /* Number of extra output files that lang_specific_pre_link may generate. */
108 int lang_specific_extra_outfiles = 0; /* Not used for C. */