semop on ia64

System V semaphore operations

sys_semop(int semid, struct sembuf *sops, unsigned nsops)
number1107 (0x453)
abicommon
kconfigCONFIG_SYSVIPC
familysysvipc see the whole family on ia64
entry pointsys_semop
sinceLinux 5.0 or earlier (5.0 is the first release scanned for ia64)
man pagesemop(2)
sourceelixir.bootlin.com

Registers

registervalue
r151107, the syscall number
out0int semid
out1struct sembuf *sops
out2unsigned nsops
r8the return value

Then run break 0x100000 to enter the kernel.

The kernel uses r10 to signal an error.

The pipe call returns file descriptors in r8 and r9.

This architecture was removed from the Linux kernel in Linux 6.7. The newest release with a syscall table here is Linux 6.6. 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/ia64/semop?kernel=all