| /* Specific flags and argument handling of the C front-end. |
| Copyright (C) 1999-2019 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 "opts.h" |
| |
| /* Filter command line before processing by the gcc driver proper. */ |
| void |
| lang_specific_driver (struct cl_decoded_option **in_decoded_options ATTRIBUTE_UNUSED, |
| unsigned int *in_decoded_options_count 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) && ! NEXT_OBJC_RUNTIME |
| unsigned int i; |
| |
| /* The new argument list will be contained in this. */ |
| struct cl_decoded_option *new_decoded_options; |
| |
| /* True if we should add -shared-libgcc to the command-line. */ |
| int shared_libgcc = 0; |
| |
| /* The total number of arguments with the new stuff. */ |
| unsigned int argc; |
| |
| /* The argument list. */ |
| struct cl_decoded_option *decoded_options; |
| |
| argc = *in_decoded_options_count; |
| decoded_options = *in_decoded_options; |
| |
| for (i = 1; i < argc; i++) |
| { |
| switch (decoded_options[i].opt_index) |
| { |
| case OPT_static_libgcc: |
| case OPT_static: |
| return; |
| |
| case OPT_SPECIAL_input_file: |
| { |
| const char *file = decoded_options[i].arg; |
| int len; |
| |
| /* If the filename ends in .m or .mi, we are compiling |
| ObjC and want to pass -shared-libgcc. */ |
| len = strlen (file); |
| if ((len > 2 && file[len - 2] == '.' && file[len - 1] == 'm') |
| || (len > 3 && file[len - 3] == '.' && file[len - 2] == 'm' |
| && file[len - 1] == 'i')) |
| shared_libgcc = 1; |
| } |
| break; |
| } |
| } |
| |
| if (shared_libgcc) |
| { |
| new_decoded_options = XNEWVEC (struct cl_decoded_option, argc + 1); |
| |
| i = 0; |
| do |
| { |
| new_decoded_options[i] = decoded_options[i]; |
| i++; |
| } |
| while (i < argc); |
| |
| generate_option (OPT_shared_libgcc, NULL, 1, CL_DRIVER, |
| &new_decoded_options[i++]); |
| |
| *in_decoded_options_count = i; |
| *in_decoded_options = new_decoded_options; |
| } |
| #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. */ |