mknod on score

create a special or ordinary file

sys_mknod(const char *filename, umode_t mode, unsigned dev)
number1027 (0x403)
abicommon
entry pointsys_mknod
sinceLinux 3.7 or earlier (3.7 is the first release scanned for score)
man pagemknod(2)
sourceelixir.bootlin.com

Registers

registervalue
r271027, the syscall number
r4const char *filename
r5umode_t mode
r6unsigned dev
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/mknod?kernel=all