syscall.sh / nios2 / rt_sigtimedwait_time64

rt_sigtimedwait_time64

synchronously wait for queued signals

sys_rt_sigtimedwait(const sigset_t *uthese, siginfo_t *uinfo, const struct __kernel_timespec *uts, size_t sigsetsize)

register	value
`r2`	421, the syscall number
`r4`	const sigset_t *uthese
`r5`	siginfo_t *uinfo
`r6`	const struct __kernel_timespec *uts
`r7`	size_t sigsetsize
`r2`	the return value

Then run trap to enter the kernel.

Same syscall on other architectures