Groups > linux.kernel > #1420215

Re: [PATCH 0/3] Fixes on remote unwind

From	Hekuang <hekuang@huawei.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH 0/3] Fixes on remote unwind
Date	2016-06-12 12:10 +0200
Message-ID	<rJav7-7mt-5@gated-at.bofh.it> (permalink)
References	<rHIKC-7iL-7@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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在 2016/6/8 18:15, He Kuang 写道:
> The remote unwind can supported scenario where we collect on a x86_64
> machine and want to do analysis on a ARM64 or x86-32 machine. Though
> this is not tested, after Arnaldo questioned the above issue, I tested
> and found a bug.
>
> In util/unwind-libunwind-local.c, PERF_REG_SP/IP is used, but those
> macros are assigned to the host platform, we should redefine them in
> the wrapper file, for example in "util/libunwind/x86_32.c".
>
> After fixing this problem, i686 perf.data can be parsed on aarch64
> machine.
>
> To Arnaldo, I noticed that this patch
> "perf tools: Find vdso supporting cross-platform analysis"
> is not on "origin/perf/unwind" branch, this patch was applied, please
> check if it was missed, the above test needs this patch.
  I also checked tip.git, this patch is not there either, is this patch 
missed?
This is the previous git pull request mail:

https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1148601.html

Thank you.
>
> Thank you.
>
> He Kuang (3):
>    perf unwind: Change macro names of perf register
>    perf unwind: Fix wrongly used regs for x86_32 unwind
>    perf unwind: Fix wrongly used regs for aarch64 unwind
>
>   tools/perf/util/libunwind/arm64.c        | 5 +++++
>   tools/perf/util/libunwind/x86_32.c       | 6 ++++++
>   tools/perf/util/unwind-libunwind-local.c | 6 ++++--
>   tools/perf/util/unwind.h                 | 9 +++++++++
>   4 files changed, 24 insertions(+), 2 deletions(-)
>

Thread

[PATCH 0/3] Fixes on remote unwind He Kuang <hekuang@huawei.com> - 2016-06-08 12:20 +0200
  [PATCH 1/3] perf unwind: Change macro names of perf register He Kuang <hekuang@huawei.com> - 2016-06-08 12:20 +0200
  [PATCH 2/3] perf unwind: Fix wrongly used regs for x86_32 unwind He Kuang <hekuang@huawei.com> - 2016-06-08 12:20 +0200
  Re: [PATCH 0/3] Fixes on remote unwind Hekuang <hekuang@huawei.com> - 2016-06-12 12:10 +0200
  Re: [PATCH 0/3] Fixes on remote unwind Hekuang <hekuang@huawei.com> - 2016-06-21 04:10 +0200
  Re: [PATCH 0/3] Fixes on remote unwind Jiri Olsa <jolsa@redhat.com> - 2016-06-21 09:40 +0200

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