ref: eb0e026c241bd3afc6a10a6e2c7417de1b91f7e8 dir: /lib9/getcallerpc-NetBSD-386.S/
#include <machine/asm.h> NENTRY(getcallerpc) movl 4(%esp), %eax movl -4(%eax), %eax ret END(getcallerpc)