syscall.sh / sh / sigreturn

sigreturn

return from signal handler and cleanup stack frame

sys_sigreturn(void)

number	119 (0x77)
abi	common
entry point	`sys_sigreturn`
since	Linux 5.0
man page	sigreturn(2)
source	elixir.bootlin.com

Registers

register	value
`r3`	119, the syscall number
`r0`	the return value

Then run trapa #31 to enter the kernel.

Same syscall on other architectures

x86 119
arm 119
ppc 119
s390x 119
mipso32 4119
alpha 103
m68k 119
sparc 216
sparc64 216

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