Handling argc==0 in the kernel
Handling argc==0 in the kernel
Posted Feb 7, 2022 9:28 UTC (Mon) by jwilk (subscriber, #63328)In reply to: Handling argc==0 in the kernel by nybble41
Parent article: Handling argc==0 in the kernel
"ln /proc/$PID/exe foo" fails with EXDEV, because it's trying to hardlink the symlink that resides in /proc.
You probably wanted "ln -L /proc/$PID/exe foo" to dereference the symlink… which still doesn't work, but at least you get a more understandable error message. (The dereferencing happens on the kernel side, so it could work in principle.)
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