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glibc/malloc/mcheck.h
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/* Copyright (C) 1996-2016 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
The GNU C Library is free software; you can redistribute it and/or | |
modify it under the terms of the GNU Lesser General Public | |
License as published by the Free Software Foundation; either | |
version 2.1 of the License, or (at your option) any later version. | |
The GNU C Library is distributed in the hope that it will be useful, | |
but WITHOUT ANY WARRANTY; without even the implied warranty of | |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
Lesser General Public License for more details. | |
You should have received a copy of the GNU Lesser General Public | |
License along with the GNU C Library; if not, see | |
<http://www.gnu.org/licenses/>. */ | |
#ifndef _MCHECK_H | |
#define _MCHECK_H 1 | |
#include <features.h> | |
__BEGIN_DECLS | |
/* Return values for `mprobe': these are the kinds of inconsistencies that | |
`mcheck' enables detection of. */ | |
enum mcheck_status | |
{ | |
MCHECK_DISABLED = -1, /* Consistency checking is not turned on. */ | |
MCHECK_OK, /* Block is fine. */ | |
MCHECK_FREE, /* Block freed twice. */ | |
MCHECK_HEAD, /* Memory before the block was clobbered. */ | |
MCHECK_TAIL /* Memory after the block was clobbered. */ | |
}; | |
/* Activate a standard collection of debugging hooks. This must be called | |
before `malloc' is ever called. ABORTFUNC is called with an error code | |
(see enum above) when an inconsistency is detected. If ABORTFUNC is | |
null, the standard function prints on stderr and then calls `abort'. */ | |
extern int mcheck (void (*__abortfunc)(enum mcheck_status)) __THROW; | |
/* Similar to `mcheck' but performs checks for all block whenever one of | |
the memory handling functions is called. This can be very slow. */ | |
extern int mcheck_pedantic (void (*__abortfunc)(enum mcheck_status)) __THROW; | |
/* Force check of all blocks now. */ | |
extern void mcheck_check_all (void); | |
/* Check for aberrations in a particular malloc'd block. You must have | |
called `mcheck' already. These are the same checks that `mcheck' does | |
when you free or reallocate a block. */ | |
extern enum mcheck_status mprobe (void *__ptr) __THROW; | |
/* Activate a standard collection of tracing hooks. */ | |
extern void mtrace (void) __THROW; | |
extern void muntrace (void) __THROW; | |
__END_DECLS | |
#endif /* mcheck.h */ |