linux/arch/arm/probes
Masami Hiramatsu f3fbd7ec62 arm: kprobes: Allow to handle reentered kprobe on single-stepping
This is arm port of commit 6a5022a56a ("kprobes/x86: Allow to
handle reentered kprobe on single-stepping")

Since the FIQ handlers can interrupt in the single stepping
(or preparing the single stepping, do_debug etc.), we should
consider a kprobe is hit in the NMI handler. Even in that
case, the kprobe is allowed to be reentered as same as the
kprobes hit in kprobe handlers
(KPROBE_HIT_ACTIVE or KPROBE_HIT_SSDONE).

The real issue will happen when a kprobe hit while another
reentered kprobe is processing (KPROBE_REENTER), because
we already consumed a saved-area for the previous kprobe.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Jon Medhurst <tixy@linaro.org>
2017-03-21 16:24:18 +00:00
..
kprobes arm: kprobes: Allow to handle reentered kprobe on single-stepping 2017-03-21 16:24:18 +00:00
uprobes ARM: kprobes: introduces checker 2015-01-09 09:36:51 +00:00
decode-arm.c ARM: kprobes: introduces checker 2015-01-09 09:36:51 +00:00
decode-arm.h ARM: kprobes: introduces checker 2015-01-09 09:36:51 +00:00
decode-thumb.c ARM: kprobes: introduces checker 2015-01-09 09:36:51 +00:00
decode-thumb.h ARM: kprobes: introduces checker 2015-01-09 09:36:51 +00:00
decode.c ARM: kprobes: check register usage for probed instruction. 2015-01-13 16:10:48 +00:00
decode.h kprobes: move kprobe declarations to asm-generic/kprobes.h 2017-02-27 18:43:45 -08:00
Makefile