lookup_dcookie on tilepro

return a directory entry's path

sys_lookup_dcookie(u64 cookie64, char *buf, size_t len)
number18 (0x12)
abicommon
entry pointsys_lookup_dcookie
sinceLinux 3.7 or earlier (3.7 is the first release scanned for tilepro)
man pagelookup_dcookie(2)
sourceelixir.bootlin.com

Registers

registervalue
r1018, the syscall number
r0u64 cookie64
r1char *buf
r2size_t len
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/lookup_dcookie?kernel=all