kernel: pass more information to user on interrupt

This is meant to facilitate a syscall for returning from interrupts, which
will actually work in the general case as opposed to the current hack, which
only works if the interrupt occured during a syscall (which is correct... for
now).

2 files changed, 5 insertions, 4 deletions

diff --git a/src/cmd/init/driver/termcook.c b/src/cmd/init/driver/termcook.c
index e0edcf5..ed851e3 100644
--- a/src/cmd/init/driver/termcook.c
+++ b/src/cmd/init/driver/termcook.c
@@ -77,7 +77,7 @@ static void line_editor(void *) {
 					}
 					break;
 				case 3: /* C-c */
-					send_intr("");
+					send_intr("C-c");
 					break;
 				case 0x1c: /* C-\ */
 					send_intr("kill");
diff --git a/src/cmd/init/init.c b/src/cmd/init/init.c
index 0a64054..9caa283 100644
--- a/src/cmd/init/init.c
+++ b/src/cmd/init/init.c
@@ -68,9 +68,10 @@ void redirect(const char *exe, const char *out, const char *in) {
 	}
 }
 
-void shutdown(void) {
-	printf("[init] intr\n");
-	_sys_intr(NULL, 0);
+void shutdown(struct intr_data *data) {
+	const char *msg = "impending shutdown";
+	printf("[init] shutdown with message: %s\n", data->msg);
+	_sys_intr(msg, strlen(msg));
 	_sys_sleep(1000);
 	printf("[init] filicide\n");
 	_sys_filicide();