SYS_SECCOMP

[Florian Weimer]

> yeah, i mean what you get in si_code to tell you that the SIGSYS was
> from seccomp.
>
> bionic gets them for free from the uapi <asm-generic/siginfo.h>:
>
> /*
>  * SIGSYS si_codes
>  */
> #define SYS_SECCOMP 1 /* seccomp triggered */
> #define SYS_USER_DISPATCH 2 /* syscall user dispatch triggered */
> #define NSIGSYS 2
>
> musl seems to have copy & pasted them into <signal.h>.

Ahh, I was confused.  So these look like system call constants from
<sys/syscall.h>, but actually arent.  At least there does not seem to be
a conflict because the system call constant is called SYS_seccomp.

We should add the missign SYS_* constants to our <signal.h>.

Thanks,
Florian