52 lines
1.8 KiB
C
52 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.1+ */
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/*
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* Copyright (C) 1996-2024 Free Software Foundation, Inc.
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* This file is part of the GNU C Library.
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*
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* This 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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*
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* This 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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* <https://www.gnu.org/licenses/>.
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*/
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#ifndef _MCHECK_H
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#define _MCHECK_H 1
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/*
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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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*/
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enum mcheck_status {
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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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typedef void (*mcheck_abortfunc_t)(enum mcheck_status, const void *p);
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int mcheck(mcheck_abortfunc_t func);
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/*
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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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*/
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int mcheck_pedantic(mcheck_abortfunc_t f);
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/* Force check of all blocks now. */
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void mcheck_check_all(void);
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/*
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* Check for aberrations in a particular malloc'd block. These are the
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* same checks that `mcheck' does, when you free or reallocate a block.
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*/
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enum mcheck_status mprobe(void *__ptr);
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#endif
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