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61 lines
2.4 KiB
C
61 lines
2.4 KiB
C
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/* Copyright (C) 1996-2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _MCHECK_H
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#define _MCHECK_H 1
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#include <features.h>
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__BEGIN_DECLS
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/* Return values for `mprobe': these are the kinds of inconsistencies that
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`mcheck' enables detection of. */
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enum mcheck_status
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{
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MCHECK_DISABLED = -1, /* Consistency checking is not turned on. */
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MCHECK_OK, /* Block is fine. */
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MCHECK_FREE, /* Block freed twice. */
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MCHECK_HEAD, /* Memory before the block was clobbered. */
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MCHECK_TAIL /* Memory after the block was clobbered. */
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};
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/* Activate a standard collection of debugging hooks. This must be called
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before `malloc' is ever called. ABORTFUNC is called with an error code
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(see enum above) when an inconsistency is detected. If ABORTFUNC is
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null, the standard function prints on stderr and then calls `abort'. */
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extern int mcheck (void (*__abortfunc)(enum mcheck_status)) __THROW;
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/* Similar to `mcheck' but performs checks for all block whenever one of
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the memory handling functions is called. This can be very slow. */
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extern int mcheck_pedantic (void (*__abortfunc)(enum mcheck_status)) __THROW;
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/* Force check of all blocks now. */
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extern void mcheck_check_all (void);
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/* Check for aberrations in a particular malloc'd block. You must have
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called `mcheck' already. These are the same checks that `mcheck' does
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when you free or reallocate a block. */
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extern enum mcheck_status mprobe (void *__ptr) __THROW;
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/* Activate a standard collection of tracing hooks. */
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extern void mtrace (void) __THROW;
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extern void muntrace (void) __THROW;
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__END_DECLS
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#endif /* mcheck.h */
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