Re: static builds on aarch64 ubuntu 22.04

[Janne Karhunen]

On Thu, Jan 12, 2023 at 1:53 PM Peter Maydell <peter.maydell@linaro.org> wrote:

> > Anyone seen this on aarch64 ubuntu 22.04 when doing a static build?
> > Broken libc build maybe? Standard -fPIC (and disabled PIE as AFAIK
> > those are mutually exclusive) doesn't seem to affect, neither does
> > gcc9 -> gcc10 change or even entirely disabled stack protector.
>
> > /usr/lib/gcc/aarch64-linux-gnu/10/../../../aarch64-linux-gnu/libc.a(abort.o):
> > in function `abort':
> > (.text.unlikely+0x20): relocation truncated to fit:
> > R_AARCH64_LD64_GOTPAGE_LO15 against symbol `__stack_chk_guard' defined
> > in .data.rel.ro section in
> > /usr/lib/gcc/aarch64-linux-gnu/10/../../../aarch64-linux-gnu/libc.a(libc-start.o)
> > /usr/bin/ld: (.text.unlikely+0x20): warning: too many GOT entries for
> > -fpic, please recompile with -fPIC
>
> Yes, this is a bug with the way your distro has compiled its
> static libc.a, which in turn is because the upstream glibc
> default was to the wrong thing.
>
> Upstream glibc bug report:
> https://sourceware.org/bugzilla/show_bug.cgi?id=29514
> Upstream glibc change that fixes this:
> https://sourceware.org/git/?p=glibc.git;a=commit;h=51231c469b49fb3837590f40a93f88db9a20bb86
>
> (It's a very small change, if you want to propose it to your
> distro as a backport.)

Thanks Peter, that's what I figured. Bummer.


--
Janne