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Diffstat (limited to 'gcc/gccspec.c')
-rw-r--r-- | gcc/gccspec.c | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/gcc/gccspec.c b/gcc/gccspec.c new file mode 100644 index 0000000..242e198 --- /dev/null +++ b/gcc/gccspec.c @@ -0,0 +1,107 @@ +/* Specific flags and argument handling of the C front-end. + Copyright (C) 1999, 2001, 2003 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 2, 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 COPYING. If not, write to the Free +Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301, USA. */ + +#include "config.h" +#include "system.h" +#include "coretypes.h" +#include "tm.h" +#include "gcc.h" + +/* Filter argc and argv before processing by the gcc driver proper. */ +void +lang_specific_driver (int *in_argc ATTRIBUTE_UNUSED, + const char *const **in_argv 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) && ! defined(NEXT_OBJC_RUNTIME) + int i; + + /* The new argument list will be contained in this. */ + const char **arglist; + + /* True if we should add -shared-libgcc to the command-line. */ + int shared_libgcc = 0; + + /* The total number of arguments with the new stuff. */ + int argc; + + /* The argument list. */ + const char *const *argv; + + argc = *in_argc; + argv = *in_argv; + + for (i = 1; i < argc; i++) + { + if (argv[i][0] == '-') + { + if (strcmp (argv[i], "-static-libgcc") == 0 + || strcmp (argv[i], "-static") == 0) + return; + } + else + { + int len; + + /* If the filename ends in .m or .mi, we are compiling ObjC + and want to pass -shared-libgcc. */ + len = strlen (argv[i]); + if ((len > 2 && argv[i][len - 2] == '.' && argv[i][len - 1] == 'm') + || (len > 3 && argv[i][len - 3] == '.' && argv[i][len - 2] == 'm' + && argv[i][len - 1] == 'i')) + shared_libgcc = 1; + } + } + + if (shared_libgcc) + { + /* Make sure to have room for the trailing NULL argument. */ + arglist = XNEWVEC (const char *, argc + 2); + + i = 0; + do + { + arglist[i] = argv[i]; + i++; + } + while (i < argc); + + arglist[i++] = "-shared-libgcc"; + + arglist[i] = NULL; + + *in_argc = i; + *in_argv = arglist; + } +#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. */ |