ref: 6b84c3a6548f1c577948763b0a09a7b6e2460e04 dir: purgatorio/lib9/getcallerpc-NetBSD-386.S
#include <machine/asm.h> NENTRY(getcallerpc) movl 4(%esp), %eax movl -4(%eax), %eax ret END(getcallerpc)