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d045b4236a
* For tools replacing the malloc library (e.g. Memcheck, Helgrind, ...), the option --redzone-size=<number> allows to control the padding blocks (redzones) added before and after each client allocated block. Smaller redzones decrease the memory needed by Valgrind. Bigger redzones increase the chance to detect blocks overrun or underrun. git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12807
69 lines
2.8 KiB
C
69 lines
2.8 KiB
C
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/*--------------------------------------------------------------------*/
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/*--- MallocFree: high-level memory management. ---*/
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/*--- pub_tool_mallocfree.h ---*/
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/*--------------------------------------------------------------------*/
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/*
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This file is part of Valgrind, a dynamic binary instrumentation
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framework.
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Copyright (C) 2000-2011 Julian Seward
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jseward@acm.org
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU 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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This program is distributed in the hope that it will be useful, but
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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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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307, USA.
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The GNU General Public License is contained in the file COPYING.
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*/
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#ifndef __PUB_TOOL_MALLOCFREE_H
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#define __PUB_TOOL_MALLOCFREE_H
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// These can be for allocating memory used by tools.
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// Nb: the allocators *always succeed* -- they never return NULL (Valgrind
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// will abort if they can't allocate the memory).
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// The 'cc' is a string that identifies the allocation point. It's used when
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// --profile-heap=yes is specified.
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extern void* VG_(malloc) ( HChar* cc, SizeT nbytes );
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extern void VG_(free) ( void* p );
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extern void* VG_(calloc) ( HChar* cc, SizeT n, SizeT bytes_per_elem );
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extern void* VG_(realloc) ( HChar* cc, void* p, SizeT size );
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extern Char* VG_(strdup) ( HChar* cc, const Char* s );
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// Returns the usable size of a heap-block. It's the asked-for size plus
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// possibly some more due to rounding up.
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extern SizeT VG_(malloc_usable_size)( void* p );
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// If tool is replacing malloc for the client, the below returns
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// the effective client redzone as derived from the default
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// provided by the tool, VG_(clo_redzone_size) and the minimum
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// redzone required by m_mallocfree.c.
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// It is an error to call this before VG_(needs_malloc_replacement) has
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// been called.
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extern SizeT VG_(malloc_effective_client_redzone_size)(void);
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// TODO: move somewhere else
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// Call here to bomb the system when out of memory (mmap anon fails)
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__attribute__((noreturn))
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extern void VG_(out_of_memory_NORETURN) ( HChar* who, SizeT szB );
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#endif // __PUB_TOOL_MALLOCFREE_H
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/*--------------------------------------------------------------------*/
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/*--- end ---*/
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/*--------------------------------------------------------------------*/
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