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72 lines
3.1 KiB
72 lines
3.1 KiB
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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) 2000-2017 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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#include "pub_tool_basics.h" // SizeT |
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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) ( const HChar* cc, SizeT nbytes ); |
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extern void VG_(free) ( void* p ); |
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extern void* VG_(calloc) ( const HChar* cc, SizeT n, SizeT bytes_per_elem ); |
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extern void* VG_(realloc) ( const HChar* cc, void* p, SizeT size ); |
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extern void VG_(realloc_shrink)( void* ptr, SizeT size ); |
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extern HChar* VG_(strdup) ( const HChar* cc, const HChar* s ); |
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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) ( const HChar* who, SizeT szB ); |
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// VG_(perm_malloc) is for allocating small blocks which are |
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// never released. The overhead for such blocks is minimal. |
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// VG_(perm_malloc) returns memory which is (at least) aligned |
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// on a multiple of align. |
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// Use the macro vg_alignof (type) to get a safe alignment for a type. |
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// No other function can be used on these permanently allocated blocks. |
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// In particular, do *not* call VG_(free) or VG_(realloc). |
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// Technically, these blocks will be returned from big superblocks |
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// only containing such permanently allocated blocks. |
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// Note that there is no cc cost centre : all such blocks will be |
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// regrouped under the "perm_alloc" cost centre. |
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extern void* VG_(perm_malloc) ( SizeT nbytes, Int align ); |
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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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