Implemented atomic_barrier system call using GCC/clang
builtin __sync_synchronize().
Signed-off-by: Timothy Edward Baldwin <t.e.baldwi...@members.leeds.ac.uk>
---
linux-user/syscall.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index bca3424..72d107a 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -9679,7 +9679,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
#ifdef TARGET_NR_atomic_barrier
case TARGET_NR_atomic_barrier:
{
- /* Like the kernel implementation and the qemu arm barrier, no-op
this? */
+ __sync_synchronize();
ret = 0;
break;
}
--
2.1.4
