syscall.sh / sh / signal

signal

ANSI C signal handling

sys_signal(int sig, __sighandler_t handler)

number	48 (0x30)
abi	common
entry point	`sys_signal`
since	Linux 5.0
man page	signal(2)
source	elixir.bootlin.com

Registers

register	value
`r3`	48, the syscall number
`r4`	int sig
`r5`	__sighandler_t handler
`r0`	the return value

Then run trapa #31 to enter the kernel.

Same syscall on other architectures

x86 48
ppc64 48
ppc 48
s390x 48
m68k 48
microblaze 48
parisc 48
sparc 48
sparc64 48

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