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https://github.com/Zenithsiz/ftmemsim-valgrind.git
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80 lines
3.3 KiB
C
80 lines
3.3 KiB
C
/*--------------------------------------------------------------------*/
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/*--- Replacements for strlen() and strnlen(), which run on the ---*/
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/*--- simulated CPU. ---*/
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/*--------------------------------------------------------------------*/
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/*
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This file is part of DRD, a heavyweight Valgrind tool for
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detecting threading errors. The code below has been extracted
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from memchec/mc_replace_strmem.c, which has the following copyright
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notice:
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Copyright (C) 2000-2012 Julian Seward
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jseward@acm.org
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307, USA.
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The GNU General Public License is contained in the file COPYING.
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*/
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#include "pub_tool_basics.h"
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#include "pub_tool_hashtable.h"
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#include "pub_tool_redir.h"
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#include "pub_tool_tooliface.h"
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#include "valgrind.h"
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#define STRNLEN(soname, fnname) \
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SizeT VG_REPLACE_FUNCTION_ZU(soname,fnname) ( const char* str, SizeT n ); \
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SizeT VG_REPLACE_FUNCTION_ZU(soname,fnname) ( const char* str, SizeT n ) \
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{ \
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SizeT i = 0; \
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while (i < n && str[i] != 0) i++; \
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return i; \
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}
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#if defined(VGO_linux)
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STRNLEN(VG_Z_LIBC_SONAME, strnlen)
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#elif defined(VGO_darwin)
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STRNLEN(VG_Z_LIBC_SONAME, strnlen)
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#endif
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// Note that this replacement often doesn't get used because gcc inlines
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// calls to strlen() with its own built-in version. This can be very
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// confusing if you aren't expecting it. Other small functions in this file
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// may also be inline by gcc.
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#define STRLEN(soname, fnname) \
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SizeT VG_REPLACE_FUNCTION_ZU(soname,fnname)( const char* str ); \
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SizeT VG_REPLACE_FUNCTION_ZU(soname,fnname)( const char* str ) \
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{ \
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SizeT i = 0; \
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while (str[i] != 0) i++; \
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return i; \
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}
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#if defined(VGO_linux)
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STRLEN(VG_Z_LIBC_SONAME, strlen)
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STRLEN(VG_Z_LD_LINUX_SO_2, strlen)
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STRLEN(VG_Z_LD_LINUX_X86_64_SO_2, strlen)
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#elif defined(VGO_darwin)
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STRLEN(VG_Z_LIBC_SONAME, strlen)
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#endif
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/*--------------------------------------------------------------------*/
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/*--- end ---*/
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/*--------------------------------------------------------------------*/
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