[Bug libc/29621] librtld.os: in function `__register_frame': libgcc/unwind-dw2-fde.c:136: undefined reference to `malloc'

["adhemerval.zanella at linaro dot org" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=29621

--- Comment #5 from Adhemerval Zanella <adhemerval.zanella at linaro dot org> ---
(In reply to James Hilliard from comment #4)
> (In reply to Adhemerval Zanella from comment #3)
> > Is there an easy way to reproduce it without resorting to build/use
> > buildroot? I am trying to use the command you posted but it fails after
> > downloading the kernel and I do not want to dig into builroot to debug this.
> > 
> > Also, could you verify what buildroot is doing differently than glibc own
> > toolchain build script [1] so we can narrow down issue?
> > 
> > [1]
> > https://sourceware.org/git/?p=glibc.git;a=blob;f=scripts/build-many-glibcs.
> > py;h=5af6f369ae04027911b3407c64716dd1571eae6a;hb=HEAD
> 
> Hmm, what's the error message buildroot gives?
> 
> I'm not really sure how to reproduce outside of buildroot. Kind of hard to
> narrow down what difference is triggering the issue with the toolchain build
> script.

I just copy/paste your instructions:

---
git clone https://github.com/buildroot/buildroot.git
cd buildroot
wget
http://autobuild.buildroot.net/results/883/883b171a856a63540908976592683527fdb21cd2/config
mv config .config
make glibc
---

And after it build first stage of GCC, it tries to download the kernel and
dumps an error:

---
wget --passive-ftp -nd -t 3 -O
'/tmp/buildroot/buildroot/output/build/.linux-5.17.15.tar.xz.MfDZZc/output'
'https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.17.15.tar.xz'
--2022-10-26 16:09:00-- 
https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.17.15.tar.xz
Resolving cdn.kernel.org (cdn.kernel.org)... 2a04:4e42:5c::432, 199.232.113.176
Connecting to cdn.kernel.org (cdn.kernel.org)|2a04:4e42:5c::432|:443...
connected.
HTTP request sent, awaiting response... 200 OK
Length: 128442092 (122M) [application/x-xz]
Saving to:
‘/tmp/buildroot/buildroot/output/build/.linux-5.17.15.tar.xz.MfDZZc/output’

/tmp/buildroot/buildroot/output/build/.linux-5.17.15.tar.xz.MfDZZc/output     
100%[====================================================================================================================================================================================================>]
122,49M  36,0MB/s    in 3,3s

2022-10-26 16:09:08 (37,4 MB/s) -
‘/tmp/buildroot/buildroot/output/build/.linux-5.17.15.tar.xz.MfDZZc/output’
saved [128442092/128442092]

ERROR: No hash found for linux-5.17.15.tar.xz
---

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