pkey_free on tilepro

allocate or free a protection key

sys_pkey_free(int pkey)
number290 (0x122)
abicommon
familypkeys see the whole family on tilepro
entry pointsys_pkey_free
sinceLinux 4.9
man pagepkey_free(2)
sourceelixir.bootlin.com

Registers

registervalue
r10290, the syscall number
r0int pkey
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/pkey_free?kernel=all