epoll_ctl on m32r

control interface for an epoll file descriptor

sys_epoll_ctl(int epfd, int op, int fd, struct epoll_event *event)
number255 (0xff)
abicommon
kconfigCONFIG_EPOLL
familyepoll see the whole family on m32r
entry pointsys_epoll_ctl
sinceLinux 3.3 or earlier (3.3 is the first release scanned for m32r)
man pageepoll_ctl(2)
sourceelixir.bootlin.com

Registers

registervalue
r7255, the syscall number
r0int epfd
r1int op
r2int fd
r3struct epoll_event *event
r0the return value

Then run trap #2 to enter the kernel.

This architecture was removed from the Linux kernel in Linux 4.17. The newest release with a syscall table here is Linux 4.16. The other removed architectures live on the historical architectures page.

Same syscall on other architectures

Get this as JSON: https://api.syscall.sh/v2/syscalls/m32r/epoll_ctl?kernel=all