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[/] [openrisc/] [trunk/] [gnu-src/] [binutils-2.18.50/] [gas/] [remap.c] - Rev 179
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/* Remap file names for debug info for GNU assembler. Copyright 2007 Free Software Foundation, Inc. This file is part of GAS, the GNU Assembler. GAS 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. GAS 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 GAS; see the file COPYING. If not, write to the Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ #include "as.h" /* Structure recording the mapping from source file and directory names at compile time to those to be embedded in debug information. */ typedef struct debug_prefix_map { const char *old_prefix; const char *new_prefix; size_t old_len; size_t new_len; struct debug_prefix_map *next; } debug_prefix_map; /* Linked list of such structures. */ debug_prefix_map *debug_prefix_maps; /* Record a debug file prefix mapping. ARG is the argument to -fdebug-prefix-map and must be of the form OLD=NEW. */ void add_debug_prefix_map (const char *arg) { debug_prefix_map *map; const char *p; char *o; p = strchr (arg, '='); if (!p) { as_fatal (_("invalid argument '%s' to -fdebug-prefix-map"), arg); return; } map = xmalloc (sizeof (debug_prefix_map)); o = xstrdup (arg); map->old_prefix = o; map->old_len = p - arg; o[map->old_len] = 0; p++; map->new_prefix = xstrdup (p); map->new_len = strlen (p); map->next = debug_prefix_maps; debug_prefix_maps = map; } /* Perform user-specified mapping of debug filename prefixes. Return the new name corresponding to FILENAME. */ const char * remap_debug_filename (const char *filename) { debug_prefix_map *map; char *s; const char *name; size_t name_len; for (map = debug_prefix_maps; map; map = map->next) if (strncmp (filename, map->old_prefix, map->old_len) == 0) break; if (!map) return filename; name = filename + map->old_len; name_len = strlen (name) + 1; s = (char *) alloca (name_len + map->new_len); memcpy (s, map->new_prefix, map->new_len); memcpy (s + map->new_len, name, name_len); return xstrdup (s); }
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