On 12/05/20 3:19 pm, Adrian Hunter wrote: > Hi > > Here are patches to add a text poke event to record changes to kernel text > (i.e. self-modifying code) in order to support tracers like Intel PT > decoding through jump labels, kprobes and ftrace trampolines. > > The first 8 patches make the kernel changes and the subsequent patches are > tools changes. > > The next 4 patches add support for updating perf tools' data cache > with the changed bytes. > > The next patch is an Intel PT specific tools change. > > The final 2 patches add perf script --show-text-poke-events option > > Patches also here: > > git://git.infradead.org/users/ahunter/linux-perf.git text_poke > > Changes in V7 > > perf: Add perf text poke event > perf/x86: Add support for perf text poke event for text_poke_bp_batch() > callers > kprobes: Add symbols for kprobe insn pages > kprobes: Add perf ksymbol events for kprobe insn pages > perf/x86: Add perf text poke events for kprobes > ftrace: Add symbols for ftrace trampolines > ftrace: Add perf ksymbol events for ftrace trampolines > ftrace: Add perf text poke events for ftrace trampolines > > Added Peter's Ack > Improved commit message for text_poke events for ftrace trampolines > > perf kcore_copy: Fix module map when there are no modules loaded > perf evlist: Disable 'immediate' events last > perf tools: Add support for PERF_RECORD_TEXT_POKE > perf tools: Add support for PERF_RECORD_KSYMBOL_TYPE_OOL > perf intel-pt: Add support for text poke events > perf script: Add option --show-text-poke-events > perf script: Show text poke address symbol > > Re-based on Arnaldo's perf/core branch >
Arnaldo, any comments on the tools patches?
