syscall.sh / s390x / sendmmsg

sendmmsg

send multiple messages on a socket

sys_sendmmsg(int fd, struct mmsghdr *mmsg, unsigned int vlen, unsigned int flags)
number358 (0x166)
abicommon
entry pointsys_sendmmsg
sinceLinux 4.16
man pagesendmmsg(2)
sourceelixir.bootlin.com

Registers

registervalue
r1358, the syscall number
r2int fd
r3struct mmsghdr *mmsg
r4unsigned int vlen
r5unsigned int flags
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/sendmmsg