ref: 5b8d76f97715a3306cf1ef3d8aaa58b3ca40e48b dir: /sys/src/cmd/unix/drawterm/posix-amd64/getcallerpc.c/
#include "u.h" #include "libc.h" uintptr getcallerpc(void *a) { return ((uintptr*)a)[-1]; }