syscall.sh / s390x / fchownat

fchownat

change ownership of a file

sys_fchownat(int dfd, const char *filename, uid_t user, gid_t group, int flag)
number291 (0x123)
abicommon
entry pointsys_fchownat
sinceLinux 4.16
man pagefchownat(2)
sourceelixir.bootlin.com

Registers

registervalue
r1291, the syscall number
r2int dfd
r3const char *filename
r4uid_t user
r5gid_t group
r6int flag
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/fchownat