| 1 | /* Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | |
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| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with the GNU C Library; if not, write to the Free |
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| 16 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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| 17 | 02111-1307 USA. */ |
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| 18 | |
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| 19 | /* Modified for newlib, July 9, 2002 by Jeff Johnston */ |
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| 20 | |
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| 21 | #ifndef _MCHECK_H |
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| 22 | #define _MCHECK_H 1 |
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| 23 | |
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| 24 | #ifdef __cplusplus |
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| 25 | extern "C" { |
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| 26 | #endif |
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| 27 | |
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| 28 | /* Return values for `mprobe': these are the kinds of inconsistencies that |
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| 29 | `mcheck' enables detection of. */ |
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| 30 | enum mcheck_status |
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| 31 | { |
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| 32 | MCHECK_DISABLED = -1, /* Consistency checking is not turned on. */ |
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| 33 | MCHECK_OK, /* Block is fine. */ |
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| 34 | MCHECK_FREE, /* Block freed twice. */ |
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| 35 | MCHECK_HEAD, /* Memory before the block was clobbered. */ |
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| 36 | MCHECK_TAIL /* Memory after the block was clobbered. */ |
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| 37 | }; |
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| 38 | |
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| 39 | |
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| 40 | /* Activate a standard collection of debugging hooks. This must be called |
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| 41 | before `malloc' is ever called. ABORTFUNC is called with an error code |
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| 42 | (see enum above) when an inconsistency is detected. If ABORTFUNC is |
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| 43 | null, the standard function prints on stderr and then calls `abort'. */ |
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| 44 | extern int mcheck (void (*__abortfunc) (enum mcheck_status)); |
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| 45 | |
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| 46 | /* Similar to `mcheck´ but performs checks for all block whenever one of |
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| 47 | the memory handling functions is called. This can be very slow. */ |
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| 48 | extern int mcheck_pedantic (void (*__abortfunc) (enum mcheck_status)); |
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| 49 | |
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| 50 | /* Force check of all blocks now. */ |
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| 51 | extern void mcheck_check_all (void); |
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| 52 | |
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| 53 | /* Check for aberrations in a particular malloc'd block. You must have |
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| 54 | called `mcheck' already. These are the same checks that `mcheck' does |
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| 55 | when you free or reallocate a block. */ |
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| 56 | extern enum mcheck_status mprobe (void *__ptr); |
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| 57 | |
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| 58 | #ifdef __cplusplus |
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| 59 | } |
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| 60 | #endif |
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| 61 | |
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| 62 | #endif /* mcheck.h */ |
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