From: Emilio G. Cota Date: Mon, 27 Jun 2016 19:01:53 +0000 (-0400) Subject: atomics: add atomic_xor X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=61696ddbdc74263ddb6869856772cfe355a5d3bd;p=qemu.git atomics: add atomic_xor This paves the way for upcoming work. Reviewed-by: Alex Bennée Signed-off-by: Emilio G. Cota Signed-off-by: Richard Henderson Message-Id: <1467054136-10430-8-git-send-email-cota@braap.org> --- diff --git a/include/qemu/atomic.h b/include/qemu/atomic.h index 94be1d0196..3b72d935bb 100644 --- a/include/qemu/atomic.h +++ b/include/qemu/atomic.h @@ -173,6 +173,7 @@ #define atomic_fetch_sub(ptr, n) __atomic_fetch_sub(ptr, n, __ATOMIC_SEQ_CST) #define atomic_fetch_and(ptr, n) __atomic_fetch_and(ptr, n, __ATOMIC_SEQ_CST) #define atomic_fetch_or(ptr, n) __atomic_fetch_or(ptr, n, __ATOMIC_SEQ_CST) +#define atomic_fetch_xor(ptr, n) __atomic_fetch_xor(ptr, n, __ATOMIC_SEQ_CST) /* And even shorter names that return void. */ #define atomic_inc(ptr) ((void) __atomic_fetch_add(ptr, 1, __ATOMIC_SEQ_CST)) @@ -181,6 +182,7 @@ #define atomic_sub(ptr, n) ((void) __atomic_fetch_sub(ptr, n, __ATOMIC_SEQ_CST)) #define atomic_and(ptr, n) ((void) __atomic_fetch_and(ptr, n, __ATOMIC_SEQ_CST)) #define atomic_or(ptr, n) ((void) __atomic_fetch_or(ptr, n, __ATOMIC_SEQ_CST)) +#define atomic_xor(ptr, n) ((void) __atomic_fetch_xor(ptr, n, __ATOMIC_SEQ_CST)) #else /* __ATOMIC_RELAXED */ @@ -339,6 +341,7 @@ #define atomic_fetch_sub(ptr, n) __sync_fetch_and_sub(ptr, n) #define atomic_fetch_and(ptr, n) __sync_fetch_and_and(ptr, n) #define atomic_fetch_or(ptr, n) __sync_fetch_and_or(ptr, n) +#define atomic_fetch_xor(ptr, n) __sync_fetch_and_xor(ptr, n) #define atomic_cmpxchg(ptr, old, new) __sync_val_compare_and_swap(ptr, old, new) /* And even shorter names that return void. */ @@ -348,6 +351,7 @@ #define atomic_sub(ptr, n) ((void) __sync_fetch_and_sub(ptr, n)) #define atomic_and(ptr, n) ((void) __sync_fetch_and_and(ptr, n)) #define atomic_or(ptr, n) ((void) __sync_fetch_and_or(ptr, n)) +#define atomic_xor(ptr, n) ((void) __sync_fetch_and_xor(ptr, n)) #endif /* __ATOMIC_RELAXED */