Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1427414 > unrolled thread

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

Back to article view | Back to linux.kernel

This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by below is the oldest one visible, not the original post.

Contents

  Re: [PATCH 0/3] Fixes on remote unwind Jiri Olsa <jolsa@redhat.com> - 2016-06-21 09:40 +0200

#1427414 — Re: [PATCH 0/3] Fixes on remote unwind

On Wed, Jun 08, 2016 at 10:15:35AM +0000, He Kuang wrote:
> 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.
> 
> 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

for the patchset:

Acked-by: Jiri Olsa <jolsa@kernel.org>

thanks,
jirka

[toc] | [standalone]

Back to top | Article view | linux.kernel

csiph-web