ref: e8f5e0909f4a7c7ae2c4e85f563e6b4da88aa98f dir: /sys/src/cmd/unix/drawterm/posix-amd64/getcallerpc.c/
#include "u.h" #include "libc.h" uintptr getcallerpc(void *a) { return ((uintptr*)a)[-1]; }