umount2 on metag

unmount filesystem

sys_umount(char *name, int flags)
number39 (0x27)
abicommon
entry pointsys_umount
sinceLinux 3.9 or earlier (3.9 is the first release scanned for metag)
man pageumount2(2)
sourceelixir.bootlin.com

Registers

registervalue
D1Re039, the syscall number
D1Ar1char *name
D0Ar2int flags
D0Re0the return value

Then run SWITCH #0x440001 to enter the kernel.

Values wider than one register are packed into consecutive arguments.

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/metag/umount2?kernel=all