Mercurial > hg > nginx
annotate src/os/unix/ngx_sunpro_amd64.il @ 3479:bfd1912e55a9
use "rep; nop" instead of "pause" on Solaris/amd64
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 26 Mar 2010 13:38:41 +0000 |
parents | 08c6ee7a1b11 |
children | d620f497c50f |
rev | line source |
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561 | 1 / |
2 / Copyright (C) Igor Sysoev | |
3 / | |
4 | |
5 / ngx_atomic_uint_t ngx_atomic_cmp_set(ngx_atomic_t *lock, | |
6 / ngx_atomic_uint_t old, ngx_atomic_uint_t set); | |
7 / | |
8 / the arguments are passed in %rdi, %rsi, %rdx | |
9 / the result is returned in the %rax | |
10 | |
11 .inline ngx_atomic_cmp_set,0 | |
12 movq %rsi, %rax | |
13 lock | |
14 cmpxchgq %rdx, (%rdi) | |
15 setz %al | |
16 movzbq %al, %rax | |
17 .end | |
18 | |
19 | |
20 / ngx_atomic_int_t ngx_atomic_fetch_add(ngx_atomic_t *value, | |
21 / ngx_atomic_int_t add); | |
22 / | |
23 / the arguments are passed in %rdi, %rsi | |
24 / the result is returned in the %rax | |
25 | |
26 .inline ngx_atomic_fetch_add,0 | |
27 movq %rsi, %rax | |
28 lock | |
29 xaddq %rax, (%rdi) | |
30 .end | |
1309 | 31 |
32 | |
33 / ngx_cpu_pause() | |
3479
bfd1912e55a9
use "rep; nop" instead of "pause" on Solaris/amd64
Igor Sysoev <igor@sysoev.ru>
parents:
1309
diff
changeset
|
34 / |
bfd1912e55a9
use "rep; nop" instead of "pause" on Solaris/amd64
Igor Sysoev <igor@sysoev.ru>
parents:
1309
diff
changeset
|
35 / the "rep; nop" is used instead of "pause" to avoid the "[ PAUSE ]" hardware |
bfd1912e55a9
use "rep; nop" instead of "pause" on Solaris/amd64
Igor Sysoev <igor@sysoev.ru>
parents:
1309
diff
changeset
|
36 / capability added by linker because Solaris/amd64 does not know about it: |
bfd1912e55a9
use "rep; nop" instead of "pause" on Solaris/amd64
Igor Sysoev <igor@sysoev.ru>
parents:
1309
diff
changeset
|
37 / |
bfd1912e55a9
use "rep; nop" instead of "pause" on Solaris/amd64
Igor Sysoev <igor@sysoev.ru>
parents:
1309
diff
changeset
|
38 / ld.so.1: nginx: fatal: hardware capability unsupported: 0x2000 [ PAUSE ] |
1309 | 39 |
40 .inline ngx_cpu_pause,0 | |
3479
bfd1912e55a9
use "rep; nop" instead of "pause" on Solaris/amd64
Igor Sysoev <igor@sysoev.ru>
parents:
1309
diff
changeset
|
41 rep; nop |
1309 | 42 .end |