[444] | 1 | /* |
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| 2 | (C) Copyright IBM Corp. 2008 |
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| 3 | |
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| 4 | All rights reserved. |
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| 5 | |
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| 6 | Redistribution and use in source and binary forms, with or without |
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| 7 | modification, are permitted provided that the following conditions are met: |
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| 8 | |
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| 9 | * Redistributions of source code must retain the above copyright notice, |
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| 10 | this list of conditions and the following disclaimer. |
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| 11 | * Redistributions in binary form must reproduce the above copyright |
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| 12 | notice, this list of conditions and the following disclaimer in the |
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| 13 | documentation and/or other materials provided with the distribution. |
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| 14 | * Neither the name of IBM nor the names of its contributors may be |
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| 15 | used to endorse or promote products derived from this software without |
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| 16 | specific prior written permission. |
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| 17 | |
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| 18 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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| 19 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 20 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 21 | ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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| 22 | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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| 23 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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| 24 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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| 25 | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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| 26 | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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| 27 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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| 28 | POSSIBILITY OF SUCH DAMAGE. |
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| 29 | |
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| 30 | Author: Ken Werner <ken.werner@de.ibm.com> |
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| 31 | */ |
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| 32 | |
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| 33 | #include "sys/linux_syscalls.h" |
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| 34 | #include <errno.h> |
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| 35 | |
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| 36 | int |
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| 37 | __linux_syscall (struct spu_syscall_block *s) |
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| 38 | { |
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| 39 | int ret; |
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| 40 | __vector unsigned int stopfunc = { |
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| 41 | 0x00002104, /* stop 0x2104 */ |
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| 42 | (unsigned int) s, |
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| 43 | 0x4020007f, /* nop */ |
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| 44 | 0x35000000 /* bi $0 */ |
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| 45 | }; |
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| 46 | |
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| 47 | void (*f) (void) = (void *) &stopfunc; |
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| 48 | asm ("sync"); |
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| 49 | |
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| 50 | f (); |
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| 51 | |
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| 52 | if (s->nr_ret > -4096ull) |
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| 53 | { |
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| 54 | errno = -s->nr_ret; |
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| 55 | ret = -1; |
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| 56 | } |
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| 57 | else |
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| 58 | { |
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| 59 | ret = s->nr_ret; |
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| 60 | } |
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| 61 | return ret; |
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| 62 | } |
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