syscall.sh / arm / 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)
number174 (0xae)
abicommon
entry pointsys_rt_sigaction
sinceLinux 4.10
man pagert_sigaction(2)
sourceelixir.bootlin.com

Registers

registervalue
r7174, the syscall number
r0int sig
r1const struct sigaction *act
r2struct sigaction *oact
r3size_t sigsetsize
r0the 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/arm/rt_sigaction