diff options
Diffstat (limited to 'src/core/ngx_atomic.h')
| -rw-r--r-- | src/core/ngx_atomic.h | 38 |
1 files changed, 19 insertions, 19 deletions
diff --git a/src/core/ngx_atomic.h b/src/core/ngx_atomic.h index f5edd1966..5f5add9df 100644 --- a/src/core/ngx_atomic.h +++ b/src/core/ngx_atomic.h @@ -6,9 +6,9 @@ #include <ngx_core.h> -#ifdef __i386__ +#if ( __i386__ || __amd64__ ) -typedef uint32_t ngx_atomic_t; +typedef volatile uint32_t ngx_atomic_t; #if (NGX_SMP) #define NGX_SMP_LOCK "lock" @@ -21,13 +21,13 @@ static ngx_inline uint32_t ngx_atomic_inc(ngx_atomic_t *value) { uint32_t old; - __asm__ __volatile (" + __asm__ volatile ( - movl $1, %0 - " NGX_SMP_LOCK - " xaddl %0, %1 + " movl $1, %0; " + NGX_SMP_LOCK + " xaddl %0, %1; " - ": "=a" (old) : "m" (*value)); + : "=a" (old) : "m" (*value)); return old; } @@ -37,13 +37,13 @@ static ngx_inline uint32_t ngx_atomic_dec(ngx_atomic_t *value) { uint32_t old; - __asm__ __volatile (" + __asm__ volatile ( - movl $-1, %0 - " NGX_SMP_LOCK - " xaddl %0, %1 + " movl $-1, %0; " + NGX_SMP_LOCK + " xaddl %0, %1; " - ": "=a" (old) : "m" (*value)); + : "=a" (old) : "m" (*value)); return old; } @@ -55,21 +55,21 @@ static ngx_inline uint32_t ngx_atomic_cmp_set(ngx_atomic_t *lock, { uint32_t res; - __asm__ __volatile (" + __asm__ volatile ( - " NGX_SMP_LOCK - " cmpxchgl %3, %1 - setzb %%al - movzbl %%al, %0 + NGX_SMP_LOCK + " cmpxchgl %3, %1; " + " setzb %%al; " + " movzbl %%al, %0; " - ": "=a" (res) : "m" (*lock), "a" (old), "q" (set)); + : "=a" (res) : "m" (*lock), "a" (old), "q" (set)); return res; } #else -typedef uint32_t ngx_atomic_t; +typedef volatile uint32_t ngx_atomic_t; /* STUB */ #define ngx_atomic_inc(x) x++; |