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Diffstat (limited to 'gcc/c/gccspec.cc')
| -rw-r--r-- | gcc/c/gccspec.cc | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/gcc/c/gccspec.cc b/gcc/c/gccspec.cc new file mode 100644 index 0000000..d1165dd --- /dev/null +++ b/gcc/c/gccspec.cc @@ -0,0 +1,107 @@ +/* Specific flags and argument handling of the C front-end. + Copyright (C) 1999-2022 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. */ |