1997-12-14 22:24:57 +00:00
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/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
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1996-12-20 01:39:50 +00:00
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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 Library 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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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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef _MCHECK_H
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#define _MCHECK_H 1
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1997-12-14 22:24:57 +00:00
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#include <features.h>
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1996-12-20 01:39:50 +00:00
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1997-12-14 22:24:57 +00:00
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__BEGIN_DECLS
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1996-12-20 01:39:50 +00:00
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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 __P ((void (*__abortfunc) __P ((enum mcheck_status))));
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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 __P ((__ptr_t __ptr));
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/* Activate a standard collection of tracing hooks. */
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extern void mtrace __P ((void));
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extern void muntrace __P ((void));
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1997-12-14 22:24:57 +00:00
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__END_DECLS
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1996-12-20 01:39:50 +00:00
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#endif /* mcheck.h */
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