shmget on tilepro

allocates a System V shared memory segment

sys_shmget(key_t key, size_t size, int flag)
number194 (0xc2)
abicommon
kconfigCONFIG_SYSVIPC
familysysvipc see the whole family on tilepro
entry pointsys_shmget
sinceLinux 3.7 or earlier (3.7 is the first release scanned for tilepro)
man pageshmget(2)
sourceelixir.bootlin.com

Registers

registervalue
r10194, the syscall number
r0key_t key
r1size_t size
r2int flag
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/shmget?kernel=all