|
|
@ -499,7 +499,7 @@ struct signalfd_siginfo |
|
|
|
#if __x86 |
|
|
|
#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
|
#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
|
#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
|
#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE /* better be safe than sorry */ |
|
|
|
#elif __amd64 |
|
|
|
#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
|
#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
|
|
@ -513,7 +513,12 @@ struct signalfd_siginfo |
|
|
|
#define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
|
#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) |
|
|
|
#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) |
|
|
|
#elif defined(_WIN32) && defined(MemoryBarrier) |
|
|
|
#elif _MSC_VER >= 1400 && 0 /* TODO: only true when using volatiles */ |
|
|
|
#define ECB_MEMORY_FENCE do { } while (0) |
|
|
|
#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
|
#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
|
#elif defined(_WIN32) |
|
|
|
#include <WinNT.h> |
|
|
|
#define ECB_MEMORY_FENCE MemoryBarrier () |
|
|
|
#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
|
#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
|