58 lines
1.9 KiB
C++
58 lines
1.9 KiB
C++
#include "global.h"
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#include "RunningUnderValgrind.h"
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#if defined(CPU_X86) && defined(__GNUC__)
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bool RunningUnderValgrind()
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{
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/* Valgrind crashes and burns on pthread_mutex_timedlock. */
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static int under_valgrind = -1;
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if( under_valgrind == -1 )
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{
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unsigned int magic[8] = { 0x00001001, 0, 0, 0, 0, 0, 0, 0 };
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asm(
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"mov %1, %%eax\n"
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"mov $0, %%edx\n"
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"rol $29, %%eax\n"
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"rol $3, %%eax\n"
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"ror $27, %%eax\n"
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"ror $5, %%eax\n"
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"rol $13, %%eax\n"
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"rol $19, %%eax\n"
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"mov %%edx, %0\t"
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: "=r" (under_valgrind): "r" (magic): "eax", "edx" );
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}
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return under_valgrind != 0;
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}
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#else
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bool RunningUnderValgrind()
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{
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return false;
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}
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#endif
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/*
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* (c) 2004 Glenn Maynard
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, and/or sell copies of the Software, and to permit persons to
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* whom the Software is furnished to do so, provided that the above
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* copyright notice(s) and this permission notice appear in all copies of
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* the Software and that both the above copyright notice(s) and this
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* permission notice appear in supporting documentation.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
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* THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
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* INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
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* OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
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* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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