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45 lines
1.1 KiB
Plaintext
45 lines
1.1 KiB
Plaintext
/
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/ Copyright (C) Igor Sysoev
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/ Copyright (C) Nginx, Inc.
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/
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/ ngx_atomic_uint_t ngx_atomic_cmp_set(ngx_atomic_t *lock,
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/ ngx_atomic_uint_t old, ngx_atomic_uint_t set);
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/
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/ the arguments are passed on stack (%esp), 4(%esp), 8(%esp)
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.inline ngx_atomic_cmp_set,0
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movl (%esp), %ecx
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movl 4(%esp), %eax
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movl 8(%esp), %edx
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lock
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cmpxchgl %edx, (%ecx)
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setz %al
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movzbl %al, %eax
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.end
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/ ngx_atomic_int_t ngx_atomic_fetch_add(ngx_atomic_t *value,
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/ ngx_atomic_int_t add);
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/
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/ the arguments are passed on stack (%esp), 4(%esp)
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.inline ngx_atomic_fetch_add,0
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movl (%esp), %ecx
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movl 4(%esp), %eax
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lock
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xaddl %eax, (%ecx)
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.end
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/ ngx_cpu_pause()
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/
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/ the "rep; nop" is used instead of "pause" to avoid the "[ PAUSE ]" hardware
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/ capability added by linker because Solaris/i386 does not know about it:
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/
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/ ld.so.1: nginx: fatal: hardware capability unsupported: 0x2000 [ PAUSE ]
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.inline ngx_cpu_pause,0
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rep; nop
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.end
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