[BUGFIX PATCH 0/6] perf/probe: Additional fixes for range only functions

From: Masami Hiramatsu
Date: Fri Oct 25 2019 - 04:46:21 EST

Hi Arnaldo,

Here are some bugfixes for the bugs you found in previous series
and similar one.

I found that there are some dwarf_entrypc() related bugs in perf
probe and fixed all except one special add-hoc code in

This time I embedded before-and-after examples in each commit.
Please check it how to reproduce it.

(*) This had been introduced for fixup fentry related gcc bug,
see commit 3d918a12a1b3 ("perf probe: Find fentry mcount fuzzed
parameter location") for detail. Nowadays gcc already fixed
this issue and this seems like a dead code. Moreover, it is not
sure such old gcc can generate DIE without entry_pc attribute.
So I decided not to touch it.

Thank you,


Masami Hiramatsu (6):
perf/probe: Fix wrong address verification
perf/probe: Fix to probe a function which has no entry pc
perf/probe: Fix to probe an inline function which has no entry pc
perf/probe: Fix to list probe event with correct line number
perf/probe: Fix to show inlined function callsite without entry_pc
perf/probe: Fix to show ranges of variables in functions without entry_pc

tools/perf/util/dwarf-aux.c | 6 +++---
tools/perf/util/probe-finder.c | 40 ++++++++++++++--------------------------
2 files changed, 17 insertions(+), 29 deletions(-)

Masami Hiramatsu (Linaro) <mhiramat@xxxxxxxxxx>