Messages in this thread | | | From | Namhyung Kim <> | Date | Mon, 5 Jul 2021 13:48:04 -0700 | Subject | Re: [PATCH 0/3] perf: Fix perf probe for Fedora34 glibc update |
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On Sat, Jul 3, 2021 at 8:36 AM Masami Hiramatsu <mhiramat@kernel.org> wrote: > > Hi Arnaldo, > > Here is a series of patches to fix the perf-probe error against the > Fedora34 glibc update, which moves most of symbols from .symtab to > .dynsym. The key is that the "most of" symbols moved, but it still > have some PLT symbols in .symtab. Thus the perf symbol-elf failes to > decode symbols.
Do you know what's the rationale of the move? Is it a change from glibc or Fedora?
Thanks, Namhyung
> > Here is the original report from Thomas about this issue. > > https://lore.kernel.org/linux-perf-users/f6752514-eaf9-371e-f81b-0d9e41ebae0c@linux.ibm.com/ > > Thank you, > > --- > > Masami Hiramatsu (3): > perf-probe: Fix debuginfo__new() to enable build-id based debuginfo > perf symbol-elf: Decode dynsym even if symtab exists > perf probe: Do not show @plt function by default > > > tools/perf/builtin-probe.c | 2 - > tools/perf/util/probe-finder.c | 5 ++ > tools/perf/util/symbol-elf.c | 82 ++++++++++++++++++++++++++-------------- > 3 files changed, 60 insertions(+), 29 deletions(-) > > -- > Masami Hiramatsu (Linaro) <mhiramat@kernel.org>
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