syscall.sh / arm64 / rt_sigaction

rt_sigaction

examine and change a signal action

sys_rt_sigaction(int sig, const struct sigaction *act, struct sigaction *oact, size_t sigsetsize)
number134 (0x86)
abicommon
entry pointsys_rt_sigaction
sinceLinux 3.7
man pagert_sigaction(2)
sourceelixir.bootlin.com

Registers

registervalue
x8134, the syscall number
x0int sig
x1const struct sigaction *act
x2struct sigaction *oact
x3size_t sigsetsize
x0the return value

Then run svc #0 to enter the kernel.

Same syscall on other architectures

Get this as JSON: https://api.syscall.sh/v2/syscalls/arm64/rt_sigaction