1 files changed, 60 insertions, 0 deletions
diff --git a/libc-parts/_exit.c b/libc-parts/_exit.c
new file mode 100644
index 0000000..74250fc
--- /dev/null
+++ b/libc-parts/_exit.c
@@ -0,0 +1,60 @@
+/* _exit.c - Exit implementation.
+   Copyright (C) 2008 Free Software Foundation, Inc.
+   Written by Neal H. Walfield <neal@gnu.org>.
+
+   This file is part of the GNU Hurd.
+
+   The GNU Hurd is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2, or (at
+   your option) any later version.
+
+   The GNU Hurd is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA. */
+
+#include <hurd/stddef.h>
+#include <hurd/startup.h>
+#include <hurd/folio.h>
+
+int __global_zero;
+
+void
+_exit (int ret)
+{
+#if defined (RM_INTERN)
+# if defined (__i386__)
+  /* Try to invoke the debugger.  */
+  asm ("int $3");
+# endif
+#else
+  extern struct hurd_startup_data *__hurd_startup_data;
+
+  addr_t folio = addr_chop (__hurd_startup_data->activity,
+			    FOLIO_OBJECTS_LOG2);
+  int index = addr_extract (__hurd_startup_data->activity,
+			    FOLIO_OBJECTS_LOG2);
+
+  error_t err;
+  err = rm_folio_object_alloc (ADDR_VOID, folio, index,
+			       cap_void, OBJECT_POLICY_VOID,
+			       (uintptr_t) ret,
+			       ADDR_VOID, ADDR_VOID);
+
+  assert_perror (err);
+#endif
+
+  debug (0, "Failed to die gracefully; doing the ultra-violent.");
+
+  volatile int j = ret / __global_zero;
+  for (;;)
+    {
+      j --;
+      l4_yield ();
+    }
+}