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[v8,02/37] atomics: add atomic_xor

Message ID 1477330788-14996-3-git-send-email-rth@twiddle.net
State New
Headers show

Commit Message

Richard Henderson Oct. 24, 2016, 5:39 p.m. UTC 
From: "Emilio G. Cota" <cota@braap.org>

This paves the way for upcoming work.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1467054136-10430-8-git-send-email-cota@braap.org>
---
 include/qemu/atomic.h | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/include/qemu/atomic.h b/include/qemu/atomic.h
index 94be1d0..3b72d93 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 */