Aligning tcmalloc with glibc 2.35 rseq ABI

[Mathieu Desnoyers]

Hi Chris,

You will probably want to have a look at the userspace rseq ABI exposed by glibc 2.35 to ensure
tcmalloc becomes compatible with it.

If it helps, you can have a look at how I modified librseq to play nicely with glibc 2.35:

https://git.kernel.org/pub/scm/libs/librseq/librseq.git/

Most relevant bits:

https://git.kernel.org/pub/scm/libs/librseq/librseq.git/tree/src/rseq.c#n108

Thanks,

Mathieu

-- 
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com