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authorH. Peter Anvin (Intel) <hpa@zytor.com>2021-05-10 12:09:39 +0300
committerIngo Molnar <mingo@kernel.org>2021-05-10 13:33:28 +0300
commitd88be187a6e6f3a97dfa7ddc500bb9ca191b3772 (patch)
tree9ed3c850fd256ab6133f2ef676c784deb6dce7c2
parentbe5bb8021c9731f5593de6419ae35d3f16a3e497 (diff)
downloadlinux-d88be187a6e6f3a97dfa7ddc500bb9ca191b3772.tar.xz
x86/asm: Add _ASM_BYTES() macro for a .byte ... opcode sequence
Make it easy to create a sequence of bytes that can be used in either assembly proper on in a C asm() statement. Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20210510090940.924953-3-hpa@zytor.com
-rw-r--r--arch/x86/include/asm/asm.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/asm.h b/arch/x86/include/asm/asm.h
index 93aad0b63806..507a37a46027 100644
--- a/arch/x86/include/asm/asm.h
+++ b/arch/x86/include/asm/asm.h
@@ -13,6 +13,8 @@
# define __ASM_FORM_COMMA(x, ...) " " __stringify(x,##__VA_ARGS__) ","
#endif
+#define _ASM_BYTES(x, ...) __ASM_FORM(.byte x,##__VA_ARGS__ ;)
+
#ifndef __x86_64__
/* 32 bit */
# define __ASM_SEL(a,b) __ASM_FORM(a)