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| author | Masami Hiramatsu <mhiramat@kernel.org> | 2017-09-19 12:00:19 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-09-28 09:23:04 +0200 |
| commit | e863d5396146411b615231cae0c518cb2a23371c (patch) | |
| tree | 5e687c4220dfce99482755fe51bfeb2102287044 /tools | |
| parent | kprobes/x86: Move the get_kprobe_ctlblk() into irq-disabled block (diff) | |
| download | linux-e863d5396146411b615231cae0c518cb2a23371c.tar.xz linux-e863d5396146411b615231cae0c518cb2a23371c.zip | |
kprobes: Warn if optprobe handler tries to change execution path
Warn if optprobe handler tries to change execution path.
As described in Documentation/kprobes.txt, with optprobe
user handler can not change instruction pointer. In that
case user must avoid optimizing the kprobes by setting
post_handler or break_handler.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E . McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/150581521955.32348.3615624715034787365.stgit@devbox
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools')
0 files changed, 0 insertions, 0 deletions