52ff05126a
* spu/Makefile.in: Add new file.
* spu/linux_syscalls.c: New file to add Linux syscall support.
63 lines
2.0 KiB
C
63 lines
2.0 KiB
C
/*
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(C) Copyright IBM Corp. 2008
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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: Ken Werner <ken.werner@de.ibm.com>
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*/
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#include "sys/linux_syscalls.h"
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#include <errno.h>
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int
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__linux_syscall (struct spu_syscall_block *s)
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{
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int ret;
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__vector unsigned int stopfunc =3D {
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0x00002104, /* stop 0x2104 */
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(unsigned int) s,
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0x4020007f, /* nop */
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0x35000000 /* bi $0 */
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};
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void (*f) (void) =3D (void *) &stopfunc;
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asm ("sync");
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f ();
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if (s->nr_ret > -4096ull)
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{
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errno =3D -s->nr_ret;
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ret =3D -1;
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}
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else
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{
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ret =3D s->nr_ret;
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}
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return ret;
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}
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