Update to go1.23.4

src/runtime/cgo/gcc_stack_unix.c

@@ -31,10 +31,11 @@ x_cgo_getstackbound(uintptr bounds[2])
 	pthread_attr_get_np(pthread_self(), &attr);
 	pthread_attr_getstack(&attr, &addr, &size); // low address
 #else
-	// We don't know how to get the current stacks, so assume they are the
-	// same as the default stack bounds.
-	pthread_attr_getstacksize(&attr, &size);
-	addr = __builtin_frame_address(0) + 4096 - size;
+	// We don't know how to get the current stacks, leave it as
+	// 0 and the caller will use an estimate based on the current
+	// SP.
+	addr = 0;
+	size = 0;
 #endif
 	pthread_attr_destroy(&attr);