Commit ba7e4d13 authored Jun 06, 2009 by Ingo Molnar

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@chello.nl>
Cc: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent 63fb3f9b

arch/x86/Kconfig

+3 −0

Original line number	Diff line number	Diff line
		@@ -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

arch/x86/lib/Makefile

+1 −1

Original line number	Diff line number	Diff line
		@@ -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