syscall.sh / s390x / signal

signal

ANSI C signal handling

sys_signal(int sig, __sighandler_t handler)

number	48 (0x30)
abi	common
entry point	`sys_signal`
since	Linux 4.16
man page	signal(2)
source	elixir.bootlin.com

Registers

register	value
`r1`	48, the syscall number
`r2`	int sig
`r3`	__sighandler_t handler
`r2`	the return value

Then run svc 0 to enter the kernel.

Same syscall on other architectures

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

Get this as JSON: https://api.syscall.sh/v2/syscalls/s390x/signal