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| author | Ingo Molnar | 2009-06-06 13:58:12 +0200 |
|---|---|---|
| committer | Ingo Molnar | 2010-03-10 13:34:12 +0100 |
| commit | ba7e4d13fc7e25af1d167d40e6f028298dfc55ad (patch) | |
| tree | 2256022da50cf87b601a43f718d39b4dbcc482c8 /arch/x86/Kconfig | |
| parent | perf, x86: Fix LBR read-out (diff) | |
| download | kernel-qcow2-linux-ba7e4d13fc7e25af1d167d40e6f028298dfc55ad.tar.gz kernel-qcow2-linux-ba7e4d13fc7e25af1d167d40e6f028298dfc55ad.tar.xz kernel-qcow2-linux-ba7e4d13fc7e25af1d167d40e6f028298dfc55ad.zip | |
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>
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index e98440371525..e1240f652a9b 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 |