syscall.sh / s390x / writev

writev

read or write data into multiple buffers

sys_writev(unsigned long fd, const struct iovec *vec, unsigned long vlen)
number146 (0x92)
abicommon
entry pointsys_writev
sinceLinux 4.16
man pagewritev(2)
sourceelixir.bootlin.com

Registers

registervalue
r1146, the syscall number
r2unsigned long fd
r3const struct iovec *vec
r4unsigned long vlen
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/writev