Re: [PATCH v2] Add frame pointer unwinding for aarch64

2017-04-25 Thread Ulf Hermann
On 04/24/2017 04:53 PM, Mark Wielaard wrote: > I got these separately. I assume they are as in the email you sent on > Mon, 10 Apr 2017 14:48:06 +0200 (which didn't hit the list because it > had the binaries attached...) Yes. Those are the right binaries. > This description doesn't seem to match

Re: [PATCH v2] Add frame pointer unwinding for aarch64

2017-04-24 Thread Mark Wielaard
On Thu, 2017-04-20 at 14:41 +0200, Ulf Hermann wrote: > diff --git a/tests/backtrace.aarch64.fp.core.bz2 > b/tests/backtrace.aarch64.fp.core.bz2 > new file mode 100644 > index 000..ef628af > Binary files /dev/null and b/tests/backtrace.aarch64.fp.core.bz2 differ > diff --git a/tests/backtrace.

[PATCH v2] Add frame pointer unwinding for aarch64

2017-04-20 Thread Ulf Hermann
If we don't find any debug information for a given frame, we usually cannot unwind any further. However, the binary in question might have been compiled with frame pointers, in which case we can look up the well known frame pointer locations in the stack snapshot and use them to bridge the frames w