Re: [PATCH v5] arm64: implement KPROBES_ON_FTRACE

2019-08-23 Thread Masami Hiramatsu
Hi Jisheng, On Thu, 22 Aug 2019 11:25:00 + Jisheng Zhang wrote: > KPROBES_ON_FTRACE avoids much of the overhead with regular kprobes as it > eliminates the need for a trap, as well as the need to emulate or > single-step instructions. > > Tested on berlin arm64 platform. > > ~ # mount -t d

Re: [PATCH v5] arm64: implement KPROBES_ON_FTRACE

2019-08-22 Thread Naveen N. Rao
Jisheng Zhang wrote: KPROBES_ON_FTRACE avoids much of the overhead with regular kprobes as it eliminates the need for a trap, as well as the need to emulate or single-step instructions. Tested on berlin arm64 platform. ~ # mount -t debugfs debugfs /sys/kernel/debug/ ~ # cd /sys/kernel/debug/ /s