semctl on metag

System V semaphore control operations

sys_semctl(int semid, int semnum, int cmd, unsigned long arg)
number191 (0xbf)
abicommon
kconfigCONFIG_SYSVIPC
familysysvipc see the whole family on metag
entry pointsys_semctl
sinceLinux 3.9 or earlier (3.9 is the first release scanned for metag)
man pagesemctl(2)
sourceelixir.bootlin.com

Registers

registervalue
D1Re0191, the syscall number
D1Ar1int semid
D0Ar2int semnum
D1Ar3int cmd
D0Ar4unsigned long arg
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/semctl?kernel=all