* Szabolcs Nagy <nsz@port70.net> [2018-04-28 21:56:56 +0200]:
> the ptrace.h change is probably not ok
> (glibc added struct __ptrace_seccomp_metadata
> instead of the kernel struct seccomp_metadata,
> but the same is true for ptrace_peeksiginfo_args
> where musl currently follows linux instead of
> glibc, maybe that should be fixed?).
> 

i created a patch that follows the glibc api.

> the last patch is an unfinished proposal to add
> some new syscalls glibc already has, but i ran
> into some issues so comments are welcome.
> 

i fixed up a few issues there, i'm still not sure
about pkey*.

attached v2 of these two patches.