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68 lines
2.2 KiB
68 lines
2.2 KiB
5 years ago
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/* rt_heap.h: definitions to enable retargetting of heap implementation
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*
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* Copyright 1999 ARM Limited. All rights reserved.
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*
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* RCS $Revision: 185914 $
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* Checkin $Date: 2014-06-24 07:41:38 +0100 (Tue, 24 Jun 2014) $
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* Revising $Author: petpav01 $
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*/
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#ifndef __RT_HEAP_H
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#define __RT_HEAP_H
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#define __ARMCLIB_VERSION 5050106
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* This is the structure that defines the heap descriptor. The
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* first section of it is used by the C library and so the format
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* is fixed. Space after that can be used as the user wishes.
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*/
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struct __Heap_Descriptor;
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/*
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* Define all these functions to override the heap. __Heap_DescSize
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* must return the size of the __Heap_Descriptor structure.
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*/
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extern int __Heap_DescSize(int zero);
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extern void __Heap_Initialize(struct __Heap_Descriptor *h);
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extern void __Heap_Finalize(struct __Heap_Descriptor *h);
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extern void __Heap_ProvideMemory(struct __Heap_Descriptor *, void *, size_t);
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extern void *__Heap_Alloc(struct __Heap_Descriptor *, size_t);
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extern void __Heap_Free(struct __Heap_Descriptor *, void *);
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extern void *__Heap_Realloc(struct __Heap_Descriptor *, void *, size_t);
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extern void *__Heap_Stats(struct __Heap_Descriptor *,
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int (* /*print*/)(void *, char const *format, ...),
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void * /*printparam*/);
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extern int __Heap_Valid(struct __Heap_Descriptor *,
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int (* /*print*/)(void *, char const *format, ...),
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void * /*printparam*/, int /*verbose*/);
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/*
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* The heap can call these functions when it is full or
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* inconsistent. __Heap_Full is passed the extra size that the heap
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* needs, and will call back to __Heap_ProvideMemory if it can find
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* some more storage. These are not functions you should override.
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*/
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extern int __Heap_Full(struct __Heap_Descriptor *, size_t);
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extern void __Heap_Broken(struct __Heap_Descriptor *);
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/*
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* Call _init_alloc, and define __rt_heap_extend, if you are trying
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* to run a heap on the bare metal.
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*/
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extern void _init_alloc(uintptr_t /*base*/, uintptr_t /*top*/);
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extern size_t __rt_heap_extend(size_t /*size*/, void ** /*block*/);
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#ifdef __cplusplus
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}
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#endif
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#endif
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