ref: 0b43ac046ca81d78e9eca535ab1e92971d30405a dir: /posix-port/getcallerpc.c/
#include "u.h" #include "libc.h" uintptr getcallerpc(void *a) { USED(a); return (uintptr)__builtin_extract_return_addr(__builtin_return_address(0)); }