source: trunk/libs/newlib/src/libgloss/spu/exit.c @ 444

Last change on this file since 444 was 444, checked in by satin@…, 6 years ago

add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc

File size: 1.8 KB
Line 
1/*
2(C) Copyright IBM Corp. 2005, 2006
3
4All rights reserved.
5
6Redistribution and use in source and binary forms, with or without
7modification, are permitted provided that the following conditions are met:
8
9    * Redistributions of source code must retain the above copyright notice,
10this list of conditions and the following disclaimer.
11    * Redistributions in binary form must reproduce the above copyright
12notice, this list of conditions and the following disclaimer in the
13documentation and/or other materials provided with the distribution.
14    * Neither the name of IBM nor the names of its contributors may be
15used to endorse or promote products derived from this software without
16specific prior written permission.
17
18THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
22LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28POSSIBILITY OF SUCH DAMAGE.
29
30*/
31
32void _exit(int rc)
33{
34  /* Some self modifying code to return 'rc' in the 'stop' insn. */
35  asm volatile (
36    "   ori     $3, %0,0\n"
37    "   lqr     $4, 1f\n"
38    "   cbd     $5, 1f+3($sp)\n"
39    "   shufb   $0, %0, $4, $5\n"
40    "   stqr    $0, 1f\n"
41    "   sync\n"
42    "1:\n"
43    "   stop    0x2000\n"
44    : : "r" (rc) );
45
46  for (;;)
47    ;
48}
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