diff options
| author | qhuang8 <qhuang8@6f19259b-4bc3-4df7-8a09-765794883524> | 2010-05-19 06:06:40 +0000 |
|---|---|---|
| committer | qhuang8 <qhuang8@6f19259b-4bc3-4df7-8a09-765794883524> | 2010-05-19 06:06:40 +0000 |
| commit | 4e4a5f359d04a9551b2c74a3aeb7b10677988bc0 (patch) | |
| tree | 3145f18eb6f5c733afbe461fb76b72fbaa5eb0f0 /MdePkg/Library/BaseSynchronizationLib/Ia32 | |
| parent | afe7c8b2bb2891a08acba13902257e740caa2567 (diff) | |
| download | edk2-platforms-4e4a5f359d04a9551b2c74a3aeb7b10677988bc0.tar.xz | |
Temporarily remove build-in __sync_val_compare_and_swap() in the implementation of sync functions.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10519 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library/BaseSynchronizationLib/Ia32')
| -rw-r--r-- | MdePkg/Library/BaseSynchronizationLib/Ia32/GccInline.c | 24 |
1 files changed, 2 insertions, 22 deletions
diff --git a/MdePkg/Library/BaseSynchronizationLib/Ia32/GccInline.c b/MdePkg/Library/BaseSynchronizationLib/Ia32/GccInline.c index dcaaa6a8a2..d357e91817 100644 --- a/MdePkg/Library/BaseSynchronizationLib/Ia32/GccInline.c +++ b/MdePkg/Library/BaseSynchronizationLib/Ia32/GccInline.c @@ -1,7 +1,7 @@ /** @file
GCC inline implementation of BaseSynchronizationLib processor specific functions.
- Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@@ -114,13 +114,6 @@ InternalSyncCompareExchange32 ( )
{
-// GCC 4.1 and forward supports atomic builtins
-#if ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 1)))
-
- return __sync_val_compare_and_swap (Value, CompareValue, ExchangeValue);
-
-#else
-
__asm__ __volatile__ (
" \n\t"
"lock \n\t"
@@ -133,9 +126,7 @@ InternalSyncCompareExchange32 ( "cc"
);
- return CompareValue;
-
-#endif
+ return CompareValue;
}
/**
@@ -163,13 +154,6 @@ InternalSyncCompareExchange64 ( IN UINT64 ExchangeValue
)
{
-// GCC 4.1 and forward supports atomic builtins
-#if ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 1)))
-
- return __sync_val_compare_and_swap (Value, CompareValue, ExchangeValue);
-
-#else
-
__asm__ __volatile__ (
" \n\t"
"push %%ebx \n\t"
@@ -186,8 +170,4 @@ InternalSyncCompareExchange64 ( );
return CompareValue;
-
-#endif
}
-
-
|