| |
| /*--------------------------------------------------------------------*/ |
| /*--- Replacements for strlen() and strnlen(), which run on the ---*/ |
| /*--- simulated CPU. ---*/ |
| /*--------------------------------------------------------------------*/ |
| |
| /* |
| This file is part of DRD, a heavyweight Valgrind tool for |
| detecting threading errors. The code below has been extracted |
| from memchec/mc_replace_strmem.c, which has the following copyright |
| notice: |
| |
| Copyright (C) 2000-2008 Julian Seward |
| jseward@acm.org |
| |
| This program 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 of the |
| License, or (at your option) any later version. |
| |
| This program 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 this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307, USA. |
| |
| The GNU General Public License is contained in the file COPYING. |
| */ |
| |
| #include "pub_tool_basics.h" |
| #include "pub_tool_hashtable.h" |
| #include "pub_tool_redir.h" |
| #include "pub_tool_tooliface.h" |
| #include "valgrind.h" |
| |
| |
| #define STRNLEN(soname, fnname) \ |
| SizeT VG_REPLACE_FUNCTION_ZU(soname,fnname) ( const char* str, SizeT n ); \ |
| SizeT VG_REPLACE_FUNCTION_ZU(soname,fnname) ( const char* str, SizeT n ) \ |
| { \ |
| SizeT i = 0; \ |
| while (i < n && str[i] != 0) i++; \ |
| return i; \ |
| } |
| |
| STRNLEN(VG_Z_LIBC_SONAME, strnlen) |
| |
| |
| // Note that this replacement often doesn't get used because gcc inlines |
| // calls to strlen() with its own built-in version. This can be very |
| // confusing if you aren't expecting it. Other small functions in this file |
| // may also be inline by gcc. |
| #define STRLEN(soname, fnname) \ |
| SizeT VG_REPLACE_FUNCTION_ZU(soname,fnname)( const char* str ); \ |
| SizeT VG_REPLACE_FUNCTION_ZU(soname,fnname)( const char* str ) \ |
| { \ |
| SizeT i = 0; \ |
| while (str[i] != 0) i++; \ |
| return i; \ |
| } |
| |
| STRLEN(VG_Z_LIBC_SONAME, strlen) |
| STRLEN(VG_Z_LD_LINUX_SO_2, strlen) |
| STRLEN(VG_Z_LD_LINUX_X86_64_SO_2, strlen) |
| |
| /*--------------------------------------------------------------------*/ |
| /*--- end ---*/ |
| /*--------------------------------------------------------------------*/ |