> From: Wang Nan [mailto:[email protected]] > > The goal of these 4 patches is to allow perf probing at absolute address > for uprobes and kprobes. During the development several small problem in > 'perf probe -l' is found and fixed. > > Patch 1 has already acked by Masami Hiramatsu. > > Patch 2 fixes a problem about zero address in perf side. > > Patch 3 is the main patch of these 4. It allows following command: > > # perf probe /lib/x86_64-linux-gnu/libc-2.19.so 0xeb860 > > Different from v1, no extra '+' is required.
Yeah, this seems better for me. Since '+' has double meanings "positive value" and "add something", I think it's not good for this context. > > Patch 4 is a kernel side patch which fixes a small problem in uprobe_event > that, if address is 0, uprobe_events reports '0x (null)'. It is independent > from the other patches. Oops, right. Thanks! > > Wang Nan (4): > perf probe: Prevent segfault when reading probe point with absolute > address > perf probe: Fix list result when address is zero > perf probe: Support probing at absolute address > tracing/uprobes: Do not print '0x (null)' when offset is 0 > > kernel/trace/trace_uprobe.c | 17 +++- > tools/perf/util/probe-event.c | 210 > +++++++++++++++++++++++++++++++++++++---- > tools/perf/util/probe-event.h | 4 + > tools/perf/util/probe-finder.c | 21 +---- > 4 files changed, 216 insertions(+), 36 deletions(-) > > -- > 1.8.3.4
