ld: test sending a simple string message to bootstrap

sys/ld/main.c

@@ -1,5 +1,7 @@
 #include <mango/log.h>
+#include <mango/msg.h>
 #include <mango/types.h>
+#include <stdio.h>
 
 int main(
 	int argc,
@@ -9,5 +11,31 @@ int main(
 	uintptr_t bsp_base)
 {
 	kern_log("ld!");
+	kern_handle_t port;
+	kern_status_t status = port_create(&port);
+	if (status != KERN_OK) {
+		kern_logf("port creation failed %d", status);
+		return -1;
+	}
+
+#if 1
+	port_connect(port, 0, 0);
+
+	const char msg_buf[] = "Hello!";
+	struct iovec vec = IOVEC(msg_buf, 7);
+	struct msg msg = MSG(&vec, 1, NULL, 0);
+
+	char recv_buf[64];
+	struct iovec recv_vec = IOVEC(recv_buf, sizeof recv_buf);
+	struct msg recv_msg = MSG(&recv_vec, 1, NULL, 0);
+
+	kern_logf("sending message...");
+	status = msg_send(port, 0, &msg, &recv_msg);
+	kern_logf("msg_send: %d", status);
+
+	if (status == KERN_OK) {
+		kern_logf("reply: %s", recv_buf);
+	}
+#endif
 	return 0;
 }