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[Qemu-devel] [PATCH 02/10] compiler.h: add QEMU_CACHELINE + QEMU_ALIGN()
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From: |
Emilio G. Cota |
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Subject: |
[Qemu-devel] [PATCH 02/10] compiler.h: add QEMU_CACHELINE + QEMU_ALIGN() + QEMU_CACHELINE_ALIGNED |
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Date: |
Tue, 5 Apr 2016 01:30:45 -0400 |
I'm assuming windows compilers don't support this attribute.
Signed-off-by: Emilio G. Cota <address@hidden>
---
include/qemu/compiler.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/include/qemu/compiler.h b/include/qemu/compiler.h
index 8f1cc7b..fb946f1 100644
--- a/include/qemu/compiler.h
+++ b/include/qemu/compiler.h
@@ -41,6 +41,16 @@
# define QEMU_PACKED __attribute__((packed))
#endif
+#define QEMU_CACHELINE (64)
+
+#if defined(_WIN32)
+#define QEMU_ALIGN(B)
+#else
+#define QEMU_ALIGN(B) __attribute__((aligned(B)))
+#endif
+
+#define QEMU_CACHELINE_ALIGNED QEMU_ALIGN(QEMU_CACHELINE)
+
#ifndef glue
#define xglue(x, y) x ## y
#define glue(x, y) xglue(x, y)
--
2.5.0