0486bb7f0d
* configure.in: Add spu support.
* configure: Regenerated.
* spu/Makefile.in: New file.
* spu/aclocal.m4: Ditto.
* spu/configure: Ditto.
* spu/configure.in: Ditto.
* spu/crt0.c: Ditto.
* spu/exit.c: Ditto.
* spu/init.c: Ditto.
* spu/jsre.h: Ditto.
* spu/sbrk.c: Ditto.
* spu/syscalls.c: Ditto.
64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
/*
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(C) Copyright IBM Corp. 2005, 2006
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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 notice,
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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 the
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documentation and/or other materials provided with the distribution.
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* Neither the name of IBM nor the names of its contributors may be
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used to endorse or promote products derived from this software without
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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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Author: Andreas Neukoetter (ti95neuk@de.ibm.com)
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*/
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#include <sys/types.h>
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#include <errno.h>
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extern int errno;
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extern caddr_t _end;
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#define RAMSIZE 262144
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#define STACKSIZE 4096
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void *
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sbrk (ptrdiff_t increment)
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{
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static caddr_t heap_ptr = NULL;
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caddr_t base;
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if (heap_ptr == NULL)
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{
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heap_ptr = (caddr_t) & _end;
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}
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if (((RAMSIZE - STACKSIZE) - (int) heap_ptr) >= increment)
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{
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base = heap_ptr;
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heap_ptr += increment;
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return (base);
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}
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else
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{
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errno = ENOMEM;
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return ((void *) -1);
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}
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}
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