ref: 254b07675e1a5348f2a8723f55e6b5b1b18a4721 dir: /lib9/getcallerpc-NetBSD-386.S/
#include <machine/asm.h> NENTRY(getcallerpc) movl 4(%esp), %eax movl -4(%eax), %eax ret END(getcallerpc)