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authorMasami Hiramatsu <mhiramat@redhat.com>2010-03-15 18:00:54 +0100
committerIngo Molnar <mingo@elte.hu>2010-03-16 11:07:23 +0100
commit5cc718b9dad682329a60e73547c6e708faa5bbe4 (patch)
tree18a1ace43929109e1602a1e30bba42d22677aac9 /arch/Kconfig
parentx86, perf: Fix comments in Pentium-4 PMU definitions (diff)
downloadlinux-5cc718b9dad682329a60e73547c6e708faa5bbe4.tar.xz
linux-5cc718b9dad682329a60e73547c6e708faa5bbe4.zip
kprobes: Hide CONFIG_OPTPROBES and set if arch supports optimized kprobes
Hide CONFIG_OPTPROBES and set if the arch supports optimized kprobes (IOW, HAVE_OPTPROBES=y), since this option doesn't change the major behavior of kprobes, and workarounds for minor changes are documented. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> Cc: Dieter Ries <mail@dieterries.net> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <20100315170054.31593.3153.stgit@localhost6.localdomain6> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/Kconfig')
-rw-r--r--arch/Kconfig9
1 files changed, 2 insertions, 7 deletions
diff --git a/arch/Kconfig b/arch/Kconfig
index e5eb1337a537..f06010fb4838 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -42,15 +42,10 @@ config KPROBES
If in doubt, say "N".
config OPTPROBES
- bool "Kprobes jump optimization support (EXPERIMENTAL)"
- default y
- depends on KPROBES
+ def_bool y
+ depends on KPROBES && HAVE_OPTPROBES
depends on !PREEMPT
- depends on HAVE_OPTPROBES
select KALLSYMS_ALL
- help
- This option will allow kprobes to optimize breakpoint to
- a jump for reducing its overhead.
config HAVE_EFFICIENT_UNALIGNED_ACCESS
bool