syscall.sh / x86 / signal

signal

ANSI C signal handling

sys_signal(int sig, __sighandler_t handler)

number	48 (0x30)
abi	i386
entry point	`sys_signal`
since	Linux 3.3
man page	signal(2)
source	elixir.bootlin.com

Registers

register	value
`eax`	48, the syscall number
`ebx`	int sig
`ecx`	__sighandler_t handler
`eax`	the return value

Then run int 0x80 to enter the kernel.

Same syscall on other architectures

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

Get this as JSON: https://api.syscall.sh/v2/syscalls/x86/signal