syscall.sh / s390x / tgkill

tgkill

send a signal to a thread

sys_tgkill(pid_t tgid, pid_t pid, int sig)
number241 (0xf1)
abicommon
entry pointsys_tgkill
sinceLinux 4.16
man pagetgkill(2)
sourceelixir.bootlin.com

Registers

registervalue
r1241, the syscall number
r2pid_t tgid
r3pid_t pid
r4int sig
r2the 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/s390x/tgkill