kgdboc: Add ekgdboc for early use of the kernel debugger

[safe/jmp/linux-2.6] / drivers / serial / kgdboc.c

diff --git a/drivers/serial/kgdboc.c b/drivers/serial/kgdboc.c
index b765ab4..a9a94ae 100644 (file)
--- a/drivers/serial/kgdboc.c
+++ b/drivers/serial/kgdboc.c
@@ -223,6 +223,25 @@ static struct kgdb_io kgdboc_io_ops = {
        .post_exception         = kgdboc_post_exp_handler,
 };
 
+#ifdef CONFIG_KGDB_SERIAL_CONSOLE
+/* This is only available if kgdboc is a built in for early debugging */
+int __init kgdboc_early_init(char *opt)
+{
+       /* save the first character of the config string because the
+        * init routine can destroy it.
+        */
+       char save_ch;
+
+       kgdboc_option_setup(opt);
+       save_ch = config[0];
+       init_kgdboc();
+       config[0] = save_ch;
+       return 0;
+}
+
+early_param("ekgdboc", kgdboc_early_init);
+#endif /* CONFIG_KGDB_SERIAL_CONSOLE */
+
 module_init(init_kgdboc);
 module_exit(cleanup_kgdboc);
 module_param_call(kgdboc, param_set_kgdboc_var, param_get_string, &kps, 0644);