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Date: Thu, 22 Aug 2019 19:17:37 +0200
From: Tuan Hoang <tmhoang@...ux.ibm.com>
To: musl@...ts.openwall.com
Subject: Re: libexecinfo with musl

We use libexecinfo, not sure if it helps your case.

https://git.alpinelinux.org/aports/tree/main/s390-tools/APKBUILD#n49
https://git.alpinelinux.org/aports/tree/main/libexecinfo/APKBUILD

On 8/22/19 1:32 AM, Guillaume Quintard wrote:
> Hi,
> 
> Apologies if this has already been answered before, information is a bit
> hard to find on the topic.
> 
> This is what brings me here:
> https://github.com/mikroskeem/libexecinfo/issues/2
> 
> I'm trying to build and run a bigger program (varnish) that requires
> backtrace(), and while it compiles, executing backtrace() results in a
> segfault. It looks like the function __builtin_frame_address doesn't
> really do what it should.
> 
> It's apparently a builtin function from the compiler, but I sort of
> understood it also requires some support from the libc. If that's the
> case, would someone care to explain the specifics to help us decide if
> we should just cut the backtrace() feature from varnish on musl, or if
> we should work towards feature parity.
> 
> Thanks!
> 
> -- 
> Guillaume Quintard

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