[PATCH] sandbox: solve undefined reference to pthread_kill symbol

[Raymond Mao]

Hi Tom,

On Tue, 3 Jun 2025 at 15:23, Tom Rini <trini at konsulko.com> wrote:
>
> On Tue, Jun 03, 2025 at 02:00:23PM -0400, Raymond Mao wrote:
> > Hi Tom,
> >
> > On Tue, 3 Jun 2025 at 11:47, Tom Rini <trini at konsulko.com> wrote:
> > >
> > > On Tue, Jun 03, 2025 at 08:13:58AM -0700, Raymond Mao wrote:
> > >
> > > > This patch is to solve the sandbox building error:
> > > > $ make O=build-sandbox -s sandbox_defconfig
> > > > $ make O=build-sandbox -s -j2
> > > > /usr/bin/ld: /tmp/u-boot.27rzOu.ltrans58.ltrans.o: undefined reference to symbol 'pthread_kill@@GLIBC_2.2.5'
> > > > /usr/bin/ld: /lib/x86_64-linux-gnu/libpthread.so.0: error adding symbols: DSO missing from command line
> > > > collect2: error: ld returned 1 exit status
> > > > [...]
> > > >
> > > > Signed-off-by: Raymond Mao <raymond.mao at linaro.org>
> > > > ---
> > > >  arch/sandbox/config.mk | 2 +-
> > > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > OK, but how do you get this failure to start with? What host?
> > It failed when I started any sandbox unit test like:
> > ./test/py/test.py --bd sandbox --build -k <any_test>
> > My local host: Ubuntu v20.04, x86_64
>
> We don't see that normally, is there something odd about your compilers?
> This is the kind of thing which should be failing everywhere, but isn't.
> Thanks.
>
This failure occured in my host since v2025.07-rc1, but with the same
host, same setup and same instructions it worked fine in v2025.04-rc5.
Seems that some impacts were introduced during v2025.04-rc5 ~
v2025.07-rc1, which might be worth investigating.

Regards,
Raymond

> --
> Tom