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45 lines
1.9 KiB
C
45 lines
1.9 KiB
C
/* Copyright (C) 2010, 2017, MariaDB Corporation.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU 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., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA */
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#ifdef HAVE_valgrind
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#define IF_VALGRIND(A,B) A
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#else
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#define IF_VALGRIND(A,B) B
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#endif
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#if defined(HAVE_VALGRIND_MEMCHECK_H) && defined(HAVE_valgrind)
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# include <valgrind/memcheck.h>
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# define MEM_UNDEFINED(a,len) VALGRIND_MAKE_MEM_UNDEFINED(a,len)
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# define MEM_NOACCESS(a,len) VALGRIND_MAKE_MEM_NOACCESS(a,len)
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# define MEM_CHECK_ADDRESSABLE(a,len) VALGRIND_CHECK_MEM_IS_ADDRESSABLE(a,len)
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# define MEM_CHECK_DEFINED(a,len) VALGRIND_CHECK_MEM_IS_DEFINED(a,len)
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#else /* HAVE_VALGRIND_MEMCHECK_H */
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# define MEM_UNDEFINED(a,len) ((void) 0)
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# define MEM_NOACCESS(a,len) ((void) 0)
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# define MEM_CHECK_ADDRESSABLE(a,len) ((void) 0)
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# define MEM_CHECK_DEFINED(a,len) ((void) 0)
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#endif /* HAVE_VALGRIND_MEMCHECK_H */
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#ifndef DBUG_OFF
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#define TRASH_FILL(A,B,C) do { const size_t trash_tmp= (B); memset(A, C, trash_tmp); MEM_UNDEFINED(A, trash_tmp); } while (0)
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#else
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#define TRASH_FILL(A,B,C) do{ const size_t trash_tmp __attribute__((unused)) = (B) ; MEM_CHECK_ADDRESSABLE(A,trash_tmp);MEM_UNDEFINED(A,trash_tmp);} while (0)
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#endif
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#define TRASH_ALLOC(A,B) TRASH_FILL(A,B,0xA5)
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#define TRASH_FREE(A,B) TRASH_FILL(A,(size_t) (B),0x8F)
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#define TRASH(A,B) TRASH_FREE(A,B)
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# define DBUG_ASSERT_DEFINED(x) \
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DBUG_ASSERT(!VALGRIND_CHECK_MEM_IS_DEFINED(&(x), sizeof(x)))
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