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Message-ID: <tip-9072d11da15a71e086eab3b5085184f2c1d06913@git.kernel.org> Date: Wed, 18 May 2011 20:41:24 GMT From: tip-bot for Fenghua Yu <fenghua.yu@...el.com> To: linux-tip-commits@...r.kernel.org Cc: linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com, fenghua.yu@...el.com, tglx@...utronix.de, hpa@...ux.intel.com Subject: [tip:perf/core] x86, alternative: Add altinstruction_entry macro Commit-ID: 9072d11da15a71e086eab3b5085184f2c1d06913 Gitweb: http://git.kernel.org/tip/9072d11da15a71e086eab3b5085184f2c1d06913 Author: Fenghua Yu <fenghua.yu@...el.com> AuthorDate: Tue, 17 May 2011 15:29:13 -0700 Committer: H. Peter Anvin <hpa@...ux.intel.com> CommitDate: Tue, 17 May 2011 15:40:25 -0700 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@...el.com> Link: http://lkml.kernel.org/r/1305671358-14478-5-git-send-email-fenghua.yu@intel.com Signed-off-by: H. Peter Anvin <hpa@...ux.intel.com> --- arch/x86/include/asm/alternative-asm.h | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-) diff --git a/arch/x86/include/asm/alternative-asm.h b/arch/x86/include/asm/alternative-asm.h index a63a68b..94d420b 100644 --- a/arch/x86/include/asm/alternative-asm.h +++ b/arch/x86/include/asm/alternative-asm.h @@ -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__ */ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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