msgctl on tilepro

System V message control operations

sys_msgctl(int msqid, int cmd, struct msqid_ds *buf)
number187 (0xbb)
abicommon
kconfigCONFIG_SYSVIPC
familysysvipc see the whole family on tilepro
entry pointsys_msgctl
sinceLinux 3.7 or earlier (3.7 is the first release scanned for tilepro)
man pagemsgctl(2)
sourceelixir.bootlin.com

Registers

registervalue
r10187, the syscall number
r0int msqid
r1int cmd
r2struct msqid_ds *buf
r0the return value

Then run swint1 to enter the kernel.

The kernel uses r1 to signal an error for ordinary calls.

Fast atomic calls use negative numbers and have different register behavior.

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/tilepro/msgctl?kernel=all