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| author | Masami Hiramatsu <mhiramat@redhat.com> | 2010-03-15 13:00:54 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-03-16 11:07:23 +0100 |
| commit | 5cc718b9dad682329a60e73547c6e708faa5bbe4 (patch) | |
| tree | 18a1ace43929109e1602a1e30bba42d22677aac9 /arch/Kconfig | |
| parent | 8ea7f544100844307072cae2f5fc108afdef999a (diff) | |
| download | linux-3.10-5cc718b9dad682329a60e73547c6e708faa5bbe4.tar.gz linux-3.10-5cc718b9dad682329a60e73547c6e708faa5bbe4.tar.bz2 linux-3.10-5cc718b9dad682329a60e73547c6e708faa5bbe4.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/Kconfig | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index e5eb1337a53..f06010fb483 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 |