[PATCH glibc 5/9] glibc: Perform rseq(2) registration at C startup and thread creation (v17)

[Florian Weimer]

* Mathieu Desnoyers:

> One issue I'm currently facing when running "make check": because
> nptl/tst-rseq-nptl.c uses pthread_cancel(), I run into an Abort
> with:
>
> libgcc_s.so.1 must be installed for pthread_cancel to work
> Didn't expect signal from child: got `Aborted'

This is really unusual.  Is the affected test statically linked?