[tip:perf/pebs] perf, x86: Add INSTRUCTION_DECODER config flag
in [Kernel]
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From: tip-bot for Ingo Molnar on 10 Mar 2010 08:30 Commit-ID: ba7e4d13fc7e25af1d167d40e6f028298dfc55ad Gitweb: http://git.kernel.org/tip/ba7e4d13fc7e25af1d167d40e6f028298dfc55ad Author: Ingo Molnar <mingo(a)elte.hu> AuthorDate: Sat, 6 Jun 2009 13:58:12 +0200 Committer: Ingo Molnar <mingo(a)elte.hu> CommitDate: Wed, 10 Mar 2010 13:34:12 +0100 perf, x86: Add INSTRUCTION_DECODER config flag The PEBS+LBR decoding magic needs the insn_get_length() infrastructure to be able to decode x86 instruction length. So split it out of KPROBES dependency and make it enabled when either KPROBES or PERF_EVENTS is enabled. Cc: Peter Zijlstra <a.p.zijlstra(a)chello.nl> Cc: Masami Hiramatsu <mhiramat(a)redhat.com> Cc: Frederic Weisbecker <fweisbec(a)gmail.com> Cc: Paul Mackerras <paulus(a)samba.org> Cc: Arnaldo Carvalho de Melo <acme(a)redhat.com> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo(a)elte.hu> --- arch/x86/Kconfig | 3 +++ arch/x86/lib/Makefile | 2 +- 2 files changed, 4 insertions(+), 1 deletions(-) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index e984403..e1240f6 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -58,6 +58,9 @@ config X86 select HAVE_ARCH_KMEMCHECK select HAVE_USER_RETURN_NOTIFIER +config INSTRUCTION_DECODER + def_bool (KPROBES || PERF_EVENTS) + config OUTPUT_FORMAT string default "elf32-i386" if X86_32 diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile index 419386c..cbaf8f2 100644 --- a/arch/x86/lib/Makefile +++ b/arch/x86/lib/Makefile @@ -20,7 +20,7 @@ lib-y := delay.o lib-y += thunk_$(BITS).o lib-y += usercopy_$(BITS).o getuser.o putuser.o lib-y += memcpy_$(BITS).o -lib-$(CONFIG_KPROBES) += insn.o inat.o +lib-$(CONFIG_INSTRUCTION_DECODER) += insn.o inat.o obj-y += msr.o msr-reg.o msr-reg-export.o -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.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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