readlinkat on score

read value of a symbolic link

sys_readlinkat(int dfd, const char *path, char *buf, int bufsiz)
number78 (0x4e)
abicommon
entry pointsys_readlinkat
sinceLinux 3.7 or earlier (3.7 is the first release scanned for score)
man pagereadlinkat(2)
sourceelixir.bootlin.com

Registers

registervalue
r2778, the syscall number
r4int dfd
r5const char *path
r6char *buf
r7int bufsiz
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/readlinkat?kernel=all