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src
avr-libc
libc
stdlib
stdlib_private.h
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/* Copyright (c) 2004, Joerg Wunsch
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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* Neither the name of the copyright holders nor the names of
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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/* $Id: stdlib_private.h 1657 2008-03-24 17:11:08Z arcanum $ */
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#include <
inttypes.h
>
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#include <
stdlib.h
>
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#include <
avr/io.h
>
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#if !defined(__DOXYGEN__)
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struct
__freelist {
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size_t
sz;
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struct
__freelist *nx;
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};
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#endif
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extern
char
*__brkval;
/* first location not yet allocated */
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extern
struct
__freelist *__flp;
/* freelist pointer (head of freelist) */
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extern
size_t
__malloc_margin
;
/* user-changeable before the first malloc() */
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extern
char
*
__malloc_heap_start
;
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extern
char
*
__malloc_heap_end
;
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#ifndef __AVR__
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/*
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* When compiling malloc.c/realloc.c natively on a host machine, it will
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* include a main() that performs a regression test. This is meant as
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* a debugging aid, where a normal source-level debugger will help to
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* verify that the various allocator structures have the desired
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* appearance at each stage.
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*
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* When cross-compiling with avr-gcc, it will compile into just the
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* library functions malloc() and free().
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*/
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#define MALLOC_TEST
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#endif
/* !__AVR__ */
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#ifdef MALLOC_TEST
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extern
void
*mymalloc(
size_t
);
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extern
void
myfree(
void
*);
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extern
void
*myrealloc(
void
*,
size_t
);
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#define malloc mymalloc
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#define free myfree
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#define realloc myrealloc
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#define __heap_start mymem[0]
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#define __heap_end mymem[256]
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extern
char
mymem[];
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#define STACK_POINTER() (mymem + 256)
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#else
/* !MALLOC_TEST */
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extern
char
__heap_start;
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extern
char
__heap_end;
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/* Needed for definition of AVR_STACK_POINTER_REG. */
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#include <
avr/io.h
>
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#define STACK_POINTER() ((char *)AVR_STACK_POINTER_REG)
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#endif
/* MALLOC_TEST */
Automatically generated by Doxygen 1.8.1.1 on Fri Aug 17 2012.