syscall.sh / s390x / epoll_ctl

epoll_ctl

control interface for an epoll file descriptor

sys_epoll_ctl(int epfd, int op, int fd, struct epoll_event *event)
number250 (0xfa)
abicommon
entry pointsys_epoll_ctl
sinceLinux 4.16
man pageepoll_ctl(2)
sourceelixir.bootlin.com

Registers

registervalue
r1250, the syscall number
r2int epfd
r3int op
r4int fd
r5struct epoll_event *event
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/epoll_ctl