Commit 9072d11d authored May 17, 2011 by Fenghua Yu Committed by H. Peter Anvin May 17, 2011

x86, alternative: Add altinstruction_entry macro



Add altinstruction_entry macro to generate .altinstructions section
entries from assembly code.  This should be less failure-prone than
open-coding.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/1305671358-14478-5-git-send-email-fenghua.yu@intel.com


Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

parent 50973133

arch/x86/include/asm/alternative-asm.h

+9 −0

Original line number	Diff line number	Diff line
		@@ -15,4 +15,13 @@
		.endm
		#endif

		.macro altinstruction_entry orig alt feature orig_len alt_len
		.align 8
		.quad \orig
		.quad \alt
		.word \feature
		.byte \orig_len
		.byte \alt_len
		.endm

		#endif /* __ASSEMBLY__ */