baremetal: ah, actually nope, it didn't work :-(

Workaround for now. Works on asserts, but not on exit 1.

Some other day, maybe.

https://github.com/cirosantilli/linux-kernel-module-cheat/issues/59

lkmc/assert_fail.c

@@ -1,5 +1,21 @@
 #include <lkmc.h>
 
+#include <stdio.h>
+
+void atexit_cb(void) {
+    puts("atexit");
+}
+
+void onexit_cb(int status, void *arg) {
+    printf("status %d\n", status);
+}
+
+void __attribute__ ((constructor)) premain() {
+    printf("premain2()\n");
+}
+
 int main(void) {
+    atexit(atexit_cb);
+    on_exit(onexit_cb, NULL);
     lkmc_assert_fail();
 }