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-rw-r--r--include/qemu/bswap.h12
1 files changed, 11 insertions, 1 deletions
diff --git a/include/qemu/bswap.h b/include/qemu/bswap.h
index b1650da..15a78c0 100644
--- a/include/qemu/bswap.h
+++ b/include/qemu/bswap.h
@@ -125,11 +125,20 @@ CPU_CONVERT(le, 32, uint32_t)
CPU_CONVERT(le, 64, uint64_t)
/*
- * Same as cpu_to_le{16,32}, except that gcc will figure the result is
+ * Same as cpu_to_le{16,32,64}, except that gcc will figure the result is
* a compile-time constant if you pass in a constant. So this can be
* used to initialize static variables.
*/
#if HOST_BIG_ENDIAN
+# define const_le64(_x) \
+ ((((_x) & 0x00000000000000ffU) << 56) | \
+ (((_x) & 0x000000000000ff00U) << 40) | \
+ (((_x) & 0x0000000000ff0000U) << 24) | \
+ (((_x) & 0x00000000ff000000U) << 8) | \
+ (((_x) & 0x000000ff00000000U) >> 8) | \
+ (((_x) & 0x0000ff0000000000U) >> 24) | \
+ (((_x) & 0x00ff000000000000U) >> 40) | \
+ (((_x) & 0xff00000000000000U) >> 56))
# define const_le32(_x) \
((((_x) & 0x000000ffU) << 24) | \
(((_x) & 0x0000ff00U) << 8) | \
@@ -139,6 +148,7 @@ CPU_CONVERT(le, 64, uint64_t)
((((_x) & 0x00ff) << 8) | \
(((_x) & 0xff00) >> 8))
#else
+# define const_le64(_x) (_x)
# define const_le32(_x) (_x)
# define const_le16(_x) (_x)
#endif