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x86_64: Fix atomic functions

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This commit is contained in:
Pawel Dziepak 2013-11-20 15:11:00 +01:00
parent c4ac37a35e
commit 57d5d678f2
1 changed files with 8 additions and 3 deletions
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11
src/system/libroot/os/arch/x86_64/atomic.S
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@ -21,7 +21,8 @@ FUNCTION_END(atomic_set)
/* int32 atomic_get_and_set(int32* value, int32 newValue) */
FUNCTION(atomic_get_and_set):
xchgl %esi, (%rdi)
movl %esi, %eax
xchgl %eax, (%rdi)
ret
FUNCTION_END(atomic_get_and_set)
@ -37,8 +38,9 @@ FUNCTION_END(atomic_test_and_set)
/* int32 atomic_add(int32* value, int32 addValue) */
FUNCTION(atomic_add):
movl %esi, %eax
lock
xaddl %esi, (%rdi)
xaddl %eax, (%rdi)
ret
FUNCTION_END(atomic_add)
@ -75,6 +77,7 @@ FUNCTION_END(atomic_or)
FUNCTION(atomic_get):
movl (%rdi), %eax
lfence
ret
FUNCTION_END(atomic_get)
@ -88,7 +91,8 @@ FUNCTION_END(atomic_set64)
/* int64 atomic_get_and_set64(int64* value, int64 newValue) */
FUNCTION(atomic_get_and_set64):
xchgq %rsi, (%rdi)
movq %rsi, %rax
xchgq %rax, (%rdi)
ret
FUNCTION_END(atomic_get_and_set64)
@ -144,5 +148,6 @@ FUNCTION_END(atomic_or64)
FUNCTION(atomic_get64):
movq (%rdi), %rax
lfence
ret
FUNCTION_END(atomic_get64)