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Use esi instead of ebp. The latter usually is the stack frame pointer --

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using it for something else screws stack traces while being in such a
function.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27772 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Ingo Weinhold 2008-09-29 00:37:35 +00:00
parent 28de90159d
commit f711e9dc45
1 changed files with 34 additions and 34 deletions
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68
src/system/libroot/os/arch/x86/atomic.S
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@ -79,112 +79,112 @@ FUNCTION_END(atomic_get)
/* int64 atomic_set64(vint64 *value, int64 newValue) */
FUNCTION(atomic_set64):
push %ebp
push %esi
push %ebx
movl 12(%esp), %ebp /* value */
movl 12(%esp), %esi /* value */
movl 16(%esp), %ebx /* newValue low */
movl 20(%esp), %ecx /* newValue high */
_atomic_set64_1:
movl (%ebp), %eax /* testAgainst low */
movl 4(%ebp), %edx /* testAgainst high */
movl (%esi), %eax /* testAgainst low */
movl 4(%esi), %edx /* testAgainst high */
lock
cmpxchg8b (%ebp)
cmpxchg8b (%esi)
jnz _atomic_set64_1
pop %ebx
pop %ebp
pop %esi
ret
FUNCTION_END(atomic_set64)
/* int64 atomic_test_and_set64(vint64 *value, int64 newValue, int64 testAgainst) */
FUNCTION(atomic_test_and_set64):
push %ebp
push %esi
push %ebx
movl 12(%esp), %ebp /* value */
movl 12(%esp), %esi /* value */
movl 16(%esp), %ebx /* newValue low */
movl 20(%esp), %ecx /* newValue high */
movl 24(%esp), %eax /* testAgainst low */
movl 28(%esp), %edx /* testAgainst high */
lock
cmpxchg8b (%ebp)
cmpxchg8b (%esi)
pop %ebx
pop %ebp
pop %esi
ret
FUNCTION_END(atomic_test_and_set64)
/* int64 atomic_add64(vint64 *value, int64 addValue) */
FUNCTION(atomic_add64):
push %ebp
push %esi
push %ebx
movl 12(%esp), %ebp
movl 12(%esp), %esi
_atomic_add64_1:
movl (%ebp), %eax
movl 4(%ebp), %edx
movl (%esi), %eax
movl 4(%esi), %edx
movl %eax, %ebx
movl %edx, %ecx
addl 16(%esp), %ebx
adcl 20(%esp), %ecx
lock
cmpxchg8b (%ebp)
cmpxchg8b (%esi)
jnz _atomic_add64_1
pop %ebx
pop %ebp
pop %esi
ret
FUNCTION_END(atomic_add64)
/* int64 atomic_and64(vint64 *value, int64 andValue) */
FUNCTION(atomic_and64):
push %ebp
push %esi
push %ebx
movl 12(%esp), %ebp
movl 12(%esp), %esi
_atomic_and64_1:
movl (%ebp), %eax
movl 4(%ebp), %edx
movl (%esi), %eax
movl 4(%esi), %edx
movl %eax, %ebx
movl %edx, %ecx
andl 16(%esp), %ebx
andl 20(%esp), %ecx
lock
cmpxchg8b (%ebp)
cmpxchg8b (%esi)
jnz _atomic_and64_1
pop %ebx
pop %ebp
pop %esi
ret
FUNCTION_END(atomic_and64)
/* int64 atomic_or64(vint64 *value, int64 orValue) */
FUNCTION(atomic_or64):
push %ebp
push %esi
push %ebx
movl 12(%esp), %ebp
movl 12(%esp), %esi
_atomic_or64_1:
movl (%ebp), %eax
movl 4(%ebp), %edx
movl (%esi), %eax
movl 4(%esi), %edx
movl %eax, %ebx
movl %edx, %ecx
orl 16(%esp), %ebx
orl 20(%esp), %ecx
lock
cmpxchg8b (%ebp)
cmpxchg8b (%esi)
jnz _atomic_or64_1
pop %ebx
pop %ebp
pop %esi
ret
FUNCTION_END(atomic_or64)
/* int64 atomic_get64(vint64 *value) */
FUNCTION(atomic_get64):
push %ebp
push %esi
push %ebx
movl 12(%esp), %ebp
movl 12(%esp), %esi
_atomic_get64_1:
movl (%ebp), %eax
movl 4(%ebp), %edx
movl (%esi), %eax
movl 4(%esi), %edx
movl %eax, %ebx
movl %edx, %ecx
lock
cmpxchg8b (%ebp)
cmpxchg8b (%esi)
jnz _atomic_get64_1
pop %ebx
pop %ebp
pop %esi
ret
FUNCTION_END(atomic_get64)