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| author | Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> | 2012-09-28 17:15:20 +0900 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2013-01-21 13:22:36 -0500 |
| commit | e7dbfe349d12eabb7783b117e0c115f6f3d9ef9e (patch) | |
| tree | 8b567abaef12e5bb82171eea70e7f02816958ae9 /arch/Kconfig | |
| parent | 06aeaaeabf69da4a3e86df532425640f51b01cef (diff) | |
| download | lwn-e7dbfe349d12eabb7783b117e0c115f6f3d9ef9e.tar.gz lwn-e7dbfe349d12eabb7783b117e0c115f6f3d9ef9e.zip | |
kprobes/x86: Move ftrace-based kprobe code into kprobes-ftrace.c
Split ftrace-based kprobes code from kprobes, and introduce
CONFIG_(HAVE_)KPROBES_ON_FTRACE Kconfig flags.
For the cleanup reason, this also moves kprobe_ftrace check
into skip_singlestep.
Link: http://lkml.kernel.org/r/20120928081520.3560.25624.stgit@ltc138.sdl.hitachi.co.jp
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'arch/Kconfig')
| -rw-r--r-- | arch/Kconfig | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index 7f8f281f2585..97fb7d0365d1 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -76,6 +76,15 @@ config OPTPROBES depends on KPROBES && HAVE_OPTPROBES depends on !PREEMPT +config KPROBES_ON_FTRACE + def_bool y + depends on KPROBES && HAVE_KPROBES_ON_FTRACE + depends on DYNAMIC_FTRACE_WITH_REGS + help + If function tracer is enabled and the arch supports full + passing of pt_regs to function tracing, then kprobes can + optimize on top of function tracing. + config UPROBES bool "Transparent user-space probes (EXPERIMENTAL)" depends on UPROBE_EVENT && PERF_EVENTS @@ -158,6 +167,9 @@ config HAVE_KRETPROBES config HAVE_OPTPROBES bool +config HAVE_KPROBES_ON_FTRACE + bool + config HAVE_NMI_WATCHDOG bool # |