linux-kernel - Re: [PATCH 16/17] perf tests: Fix dwarf unwind for stripped binaries

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Date:   Tue, 6 Feb 2018 16:15:23 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Jiri Olsa <jolsa@...nel.org>
Cc:     lkml <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        David Ahern <dsahern@...il.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [PATCH 16/17] perf tests: Fix dwarf unwind for stripped binaries

Em Tue, Feb 06, 2018 at 07:18:12PM +0100, Jiri Olsa escreveu:
> When we strip the perf binary, dwarf unwind test stop
> to work. The reason is that strip will remove static
> function symbols, which we need to check for unwind.
> 
> This change will keep this test working in cases where
> the global symbols are put into dynamic symbol table,
> which is the case on x86. It still won't work on powerpc.
> 
> Making those 5 local functions global, and adding
> 'test_dwarf_unwind__' to their names.

Tested, applied.

- Arnaldo