semop on metag

System V semaphore operations

sys_semop(int semid, struct sembuf *sops, unsigned nsops)
number193 (0xc1)
abicommon
kconfigCONFIG_SYSVIPC
familysysvipc see the whole family on metag
entry pointsys_semop
sinceLinux 3.9 or earlier (3.9 is the first release scanned for metag)
man pagesemop(2)
sourceelixir.bootlin.com

Registers

registervalue
D1Re0193, the syscall number
D1Ar1int semid
D0Ar2struct sembuf *sops
D1Ar3unsigned nsops
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/semop?kernel=all