open_by_handle_at on score

obtain handle for a pathname and open file via a handle

sys_open_by_handle_at(int mountdirfd, struct file_handle *handle, int flags)
number265 (0x109)
abicommon
kconfigCONFIG_FHANDLE
entry pointsys_open_by_handle_at
sinceLinux 3.7 or earlier (3.7 is the first release scanned for score)
man pageopen_by_handle_at(2)
sourceelixir.bootlin.com

Registers

registervalue
r27265, the syscall number
r4int mountdirfd
r5struct file_handle *handle
r6int flags
r4the return value

Then run syscall to enter the kernel.

r7 is the error flag and r4 then holds the positive error number.

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/score/open_by_handle_at?kernel=all