diff options
Diffstat (limited to 'REORG.TODO/malloc/mcheck.h')
-rw-r--r-- | REORG.TODO/malloc/mcheck.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/REORG.TODO/malloc/mcheck.h b/REORG.TODO/malloc/mcheck.h new file mode 100644 index 0000000000..3d56bef238 --- /dev/null +++ b/REORG.TODO/malloc/mcheck.h @@ -0,0 +1,60 @@ +/* Copyright (C) 1996-2017 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 */ |