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inline
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0b44a03
)
ensure that the compiler doesn't try to reorder around atomic ops
author
Rich Felker
<dalias@aerifal.cx>
Sat, 12 Feb 2011 05:26:24 +0000
(
00:26
-0500)
committer
Rich Felker
<dalias@aerifal.cx>
Sat, 12 Feb 2011 05:26:24 +0000
(
00:26
-0500)
src/internal/atomic.h
patch
|
blob
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history
diff --git
a/src/internal/atomic.h
b/src/internal/atomic.h
index
a15f8c2
..
e74e453
100644
(file)
--- a/
src/internal/atomic.h
+++ b/
src/internal/atomic.h
@@
-15,13
+15,13
@@
static inline int a_ctz_64(uint64_t x)
static inline void a_and_64(volatile uint64_t *p, uint64_t v)
{
__asm__( "lock ; andl %1, (%0) ; lock ; andl %2, 4(%0)"
static inline void a_and_64(volatile uint64_t *p, uint64_t v)
{
__asm__( "lock ; andl %1, (%0) ; lock ; andl %2, 4(%0)"
- : : "r"((long *)p), "r"((unsigned)v), "r"((unsigned)(v>>32)) );
+ : : "r"((long *)p), "r"((unsigned)v), "r"((unsigned)(v>>32))
: "memory"
);
}
static inline void a_or_64(volatile uint64_t *p, uint64_t v)
{
__asm__( "lock ; orl %1, (%0) ; lock ; orl %2, 4(%0)"
}
static inline void a_or_64(volatile uint64_t *p, uint64_t v)
{
__asm__( "lock ; orl %1, (%0) ; lock ; orl %2, 4(%0)"
- : : "r"((long *)p), "r"((unsigned)v), "r"((unsigned)(v>>32)) );
+ : : "r"((long *)p), "r"((unsigned)v), "r"((unsigned)(v>>32))
: "memory"
);
}
static inline void a_store_l(volatile void *p, long x)
}
static inline void a_store_l(volatile void *p, long x)
@@
-32,49
+32,49
@@
static inline void a_store_l(volatile void *p, long x)
static inline void a_or_l(volatile void *p, long v)
{
__asm__( "lock ; orl %1, %0"
static inline void a_or_l(volatile void *p, long v)
{
__asm__( "lock ; orl %1, %0"
- : "=m"(*(long *)p) : "r"(v) );
+ : "=m"(*(long *)p) : "r"(v)
: "memory"
);
}
static inline void *a_cas_p(volatile void *p, void *t, void *s)
{
__asm__( "lock ; cmpxchg %3, %1"
}
static inline void *a_cas_p(volatile void *p, void *t, void *s)
{
__asm__( "lock ; cmpxchg %3, %1"
- : "=a"(t), "=m"(*(long *)p) : "a"(t), "r"(s) );
+ : "=a"(t), "=m"(*(long *)p) : "a"(t), "r"(s)
: "memory"
);
return t;
}
static inline long a_cas_l(volatile void *p, long t, long s)
{
__asm__( "lock ; cmpxchg %3, %1"
return t;
}
static inline long a_cas_l(volatile void *p, long t, long s)
{
__asm__( "lock ; cmpxchg %3, %1"
- : "=a"(t), "=m"(*(long *)p) : "a"(t), "r"(s) );
+ : "=a"(t), "=m"(*(long *)p) : "a"(t), "r"(s)
: "memory"
);
return t;
}
static inline void *a_swap_p(void *volatile *x, void *v)
{
return t;
}
static inline void *a_swap_p(void *volatile *x, void *v)
{
- __asm__( "xchg %0, %1" : "=r"(v), "=m"(*(void **)x) : "0"(v) );
+ __asm__( "xchg %0, %1" : "=r"(v), "=m"(*(void **)x) : "0"(v)
: "memory"
);
return v;
}
static inline long a_swap_l(volatile void *x, long v)
{
return v;
}
static inline long a_swap_l(volatile void *x, long v)
{
- __asm__( "xchg %0, %1" : "=r"(v), "=m"(*(long *)x) : "0"(v) );
+ __asm__( "xchg %0, %1" : "=r"(v), "=m"(*(long *)x) : "0"(v)
: "memory"
);
return v;
}
static inline void a_or(volatile void *p, int v)
{
__asm__( "lock ; orl %1, %0"
return v;
}
static inline void a_or(volatile void *p, int v)
{
__asm__( "lock ; orl %1, %0"
- : "=m"(*(int *)p) : "r"(v) );
+ : "=m"(*(int *)p) : "r"(v)
: "memory"
);
}
static inline void a_and(volatile void *p, int v)
{
__asm__( "lock ; andl %1, %0"
}
static inline void a_and(volatile void *p, int v)
{
__asm__( "lock ; andl %1, %0"
- : "=m"(*(int *)p) : "r"(v) );
+ : "=m"(*(int *)p) : "r"(v)
: "memory"
);
}
static inline int a_swap(volatile int *x, int v)
{
}
static inline int a_swap(volatile int *x, int v)
{
- __asm__( "xchg %0, %1" : "=r"(v), "=m"(*x) : "0"(v) );
+ __asm__( "xchg %0, %1" : "=r"(v), "=m"(*x) : "0"(v)
: "memory"
);
return v;
}
return v;
}
@@
-82,18
+82,18
@@
static inline int a_swap(volatile int *x, int v)
static inline int a_fetch_add(volatile int *x, int v)
{
static inline int a_fetch_add(volatile int *x, int v)
{
- __asm__( "lock ; xadd %0, %1" : "=r"(v), "=m"(*x) : "0"(v) );
+ __asm__( "lock ; xadd %0, %1" : "=r"(v), "=m"(*x) : "0"(v)
: "memory"
);
return v;
}
static inline void a_inc(volatile int *x)
{
return v;
}
static inline void a_inc(volatile int *x)
{
- __asm__( "lock ; incl %0" : "=m"(*x) : "m"(*x) );
+ __asm__( "lock ; incl %0" : "=m"(*x) : "m"(*x)
: "memory"
);
}
static inline void a_dec(volatile int *x)
{
}
static inline void a_dec(volatile int *x)
{
- __asm__( "lock ; decl %0" : "=m"(*x) : "m"(*x) );
+ __asm__( "lock ; decl %0" : "=m"(*x) : "m"(*x)
: "memory"
);
}
static inline void a_store(volatile int *p, int x)
}
static inline void a_store(volatile int *p, int x)