Mercurial > hg > nginx
annotate src/os/unix/ngx_sunpro_amd64.il @ 7690:8253424d1aff
Added size check to ngx_http_alloc_large_header_buffer().
This ensures that copying won't write more than the buffer size
even if the buffer comes from hc->free and it is smaller than the large
client header buffer size in the virtual host configuration. This might
happen if size of large client header buffers is different in name-based
virtual hosts, similarly to the problem with number of buffers fixed
in 6926:e662cbf1b932.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Thu, 06 Aug 2020 05:02:22 +0300 |
| parents | 2cd019520210 |
| children |
| rev | line source |
|---|---|
| 561 | 1 / |
| 2 / Copyright (C) Igor Sysoev | |
| 4412 | 3 / Copyright (C) Nginx, Inc. |
| 561 | 4 / |
| 5 | |
| 6 / ngx_atomic_uint_t ngx_atomic_cmp_set(ngx_atomic_t *lock, | |
| 7 / ngx_atomic_uint_t old, ngx_atomic_uint_t set); | |
| 8 / | |
| 9 / the arguments are passed in %rdi, %rsi, %rdx | |
| 10 / the result is returned in the %rax | |
| 11 | |
| 12 .inline ngx_atomic_cmp_set,0 | |
| 13 movq %rsi, %rax | |
| 14 lock | |
| 15 cmpxchgq %rdx, (%rdi) | |
| 16 setz %al | |
| 17 movzbq %al, %rax | |
| 18 .end | |
| 19 | |
| 20 | |
| 21 / ngx_atomic_int_t ngx_atomic_fetch_add(ngx_atomic_t *value, | |
| 22 / ngx_atomic_int_t add); | |
| 23 / | |
| 24 / the arguments are passed in %rdi, %rsi | |
| 25 / the result is returned in the %rax | |
| 26 | |
| 27 .inline ngx_atomic_fetch_add,0 | |
| 28 movq %rsi, %rax | |
| 29 lock | |
| 30 xaddq %rax, (%rdi) | |
| 31 .end | |
| 1309 | 32 |
| 33 | |
| 34 / ngx_cpu_pause() | |
|
3479
bfd1912e55a9
use "rep; nop" instead of "pause" on Solaris/amd64
Igor Sysoev <igor@sysoev.ru>
parents:
1309
diff
changeset
|
35 / |
|
bfd1912e55a9
use "rep; nop" instead of "pause" on Solaris/amd64
Igor Sysoev <igor@sysoev.ru>
parents:
1309
diff
changeset
|
36 / 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
|
37 / 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
|
38 / |
|
bfd1912e55a9
use "rep; nop" instead of "pause" on Solaris/amd64
Igor Sysoev <igor@sysoev.ru>
parents:
1309
diff
changeset
|
39 / ld.so.1: nginx: fatal: hardware capability unsupported: 0x2000 [ PAUSE ] |
| 1309 | 40 |
| 6474 | 41 .inline ngx_cpu_pause,0 |
| 42 rep; nop | |
| 43 .end |