[PATCH 3/3] perf: parse the .debug_frame section in case .eh_frame is not present

[PATCH 0/3] perf: parse the dwarf backtrace info from .debug_frame section · Jean Pihet <hidden> · 2013-09-09
[PATCH 1/3] ARM: perf: add support for perf registers API · Jean Pihet <hidden> · 2013-09-09
[PATCH 3/3] perf: parse the .debug_frame section in case .eh_frame is not present · Jean Pihet <hidden> · 2013-09-09
Re: [PATCH 3/3] perf: parse the .debug_frame section in case .eh_frame is not present · David Ahern <hidden> · 2013-09-10
Re: [PATCH 3/3] perf: parse the .debug_frame section in case .eh_frame is not present · Jean Pihet <hidden> · 2013-09-10
Re: [PATCH 3/3] perf: parse the .debug_frame section in case .eh_frame is not present · Jiri Olsa <hidden> · 2013-09-12
[PATCH 2/3] ARM: perf: wire up perf_regs and unwind support for ARM · Jean Pihet <hidden> · 2013-09-09
Re: [PATCH 0/3] perf: parse the dwarf backtrace info from .debug_frame section · Jean Pihet <hidden> · 2013-09-10
Re: [PATCH 0/3] perf: parse the dwarf backtrace info from .debug_frame section · Jean Pihet <hidden> · 2013-09-12
Re: [PATCH 0/3] perf: parse the dwarf backtrace info from .debug_frame section · Peter Zijlstra <peterz@infradead.org> · 2013-09-12
Re: [PATCH 0/3] perf: parse the dwarf backtrace info from .debug_frame section · Will Deacon <hidden> · 2013-09-12

From: Jiri Olsa <hidden>
Date: 2013-09-12 12:39:23
Also in: lkml

On Mon, Sep 09, 2013 at 12:00:15PM +0200, Jean Pihet wrote:

On ARM the debug info is not present in the .eh_frame sections but
in .debug_frame instead, in the dwarf format.
Use libunwind to load and parse the debug info.

Dependencies:
 . if present, libunwind >= 1.1 is needed to prevent a segfault when
   parsing the dwarf info,
 . libunwind needs to be configured with --enable-debug-frame
   to prevent a linkage error. Note: --enable-debug-frame is automatically
   selected on ARM).

Signed-off-by: Jean Pihet <redacted>

I tested the .eh_frame code is still functional, but
haven't tested the .debug_frame functionality itself

otherwise it looks ok:
Rewieved-by: Jiri Olsa [off-list ref]

thanks,
jirka

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