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kprobes: Hide CONFIG_OPTPROBES and set if arch supports optimized kprobes

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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 <[email protected]>
Cc: systemtap <[email protected]>
Cc: DLE <[email protected]>
Cc: Dieter Ries <[email protected]>
Cc: Ananth N Mavinakayanahalli <[email protected]>
Cc: OGAWA Hirofumi <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Mike Galbraith <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Masami Hiramatsu 2010-03-15 13:00:54 -04:00 • committed by Ingo Molnar
commit 5cc718b9da
2 changed files with 4 additions and 15 deletions
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9
arch/Kconfig
View file

@ -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