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Annotation of embedaddon/nginx/src/os/unix/ngx_sunpro_amd64.il, revision 1.1.1.1

1.1       misho       1: /
                      2: / Copyright (C) Igor Sysoev
                      3: / Copyright (C) Nginx, Inc.
                      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
                     32: 
                     33: 
                     34: / ngx_cpu_pause()
                     35: /
                     36: / the "rep; nop" is used instead of "pause" to avoid the "[ PAUSE ]" hardware
                     37: / capability added by linker because Solaris/amd64 does not know about it:
                     38: /
                     39: / ld.so.1: nginx: fatal: hardware capability unsupported: 0x2000 [ PAUSE ]
                     40: 
                     41:        .inline ngx_cpu_pause,0
                     42:        rep; nop
                     43:        .end