ref: 19f9f65cede04b19db1c5bc861119a613f8b91b8 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)); }