[PATCH v2 0/4] perf/probe: Support multiprobe and immediates

Masami Hiramatsu
2019-11-07T16:27:55Z

Hi,

This is the 2nd version of the multiprobe support on perf probe.

This can be applied on top of perf/core.

Inlined functions or the lines which have multiple statements can
be compiled in multiple addresses. Current perf probe generates
different events for each address, but this is not useful for
users.

Since ftrace multiprobe per event support is on upstream kernel,
it is a time to push this series. In this version, I have updated
the [1/4] not to add suffix _L* if user doesn't specify the line
number for the function or the line number is 0. And also,
[4/4] is updated according to [1/4] change.

The previous version is here.

https://lkml.kernel.org/r/157291299825.19771.5190465639558208592.stgit@devnote2

Thank you,

---

Masami Hiramatsu (4):
perf probe: Generate event name with line number
perf probe: Support multiprobe event
perf probe: Support DW_AT_const_value constant value
perf probe: Trace a magic number if variable is not found

tools/perf/util/probe-event.c | 19 +++++++++-
tools/perf/util/probe-event.h | 3 ++
tools/perf/util/probe-file.c | 14 ++++++++
tools/perf/util/probe-file.h | 2 +
tools/perf/util/probe-finder.c | 73 ++++++++++++++++++++++++++++++++++++++--
tools/perf/util/probe-finder.h | 1 +
6 files changed, 105 insertions(+), 7 deletions(-)

--
Masami Hiramatsu (Linaro) <mhiramat@kernel.org>