diff options
| author | Masami Hiramatsu <mhiramat@kernel.org> | 2017-03-29 14:00:25 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-11 16:03:47 +0200 |
| commit | 5ac07564b47fdffbc293f9b129eb5af394b3d31f (patch) | |
| tree | 4c5c1a644ba93dd9f331443f045101dd93bfc54e /kernel/trace/trace_functions_graph.c | |
| parent | 21e9341ed96024aaead1a12c77e9869ad81f8b96 (diff) | |
kprobes/x86: Do not modify singlestep buffer while resuming
commit 804dec5bda9b4fcdab5f67fe61db4a0498af5221 upstream.
Do not modify singlestep execution buffer (kprobe.ainsn.insn)
while resuming from single-stepping, instead, modifies
the buffer to add a jump back instruction at preparing
buffer.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: David S . Miller <davem@davemloft.net>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ye Xiaolong <xiaolong.ye@intel.com>
Link: http://lkml.kernel.org/r/149076361560.22469.1610155860343077495.stgit@devbox
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Signed-off-by: Alexey Makhalov <amakhalov@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/trace/trace_functions_graph.c')
0 files changed, 0 insertions, 0 deletions