Add debugger module hooks to implement alternative io (I need laplink debugging...)

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24052 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/debug.h

@@ -49,6 +49,11 @@ struct debugger_module_info {
 
 	void (*enter_debugger)(void);
 	void (*exit_debugger)(void);
+
+	// io hooks
+	int (*debugger_puts)(const char *str, int32 length);
+	int (*debugger_getchar)(void);
+	// TODO: add hooks for tunnelling gdb ?
 };
 
 extern int dbg_register_file[B_MAX_CPU_COUNT][14];

src/add-ons/kernel/debugger/auto_stack_trace/auto_stack_trace.cpp

@@ -31,6 +31,8 @@ static struct debugger_module_info sModuleInfo = {
 		&std_ops
 	},
 	enter_debugger,
+	NULL,
+	NULL,
 	NULL
 };
 

src/add-ons/kernel/debugger/hangman/hangman.c

@@ -473,6 +473,8 @@ static struct debugger_module_info sModuleInfo = {
 		&std_ops
 	},
 	NULL,
+	NULL,
+	NULL,
 	NULL
 };
 

src/add-ons/kernel/debugger/invalidate_on_exit/invalidate_on_exit.cpp

@@ -71,7 +71,9 @@ static struct debugger_module_info sModuleInfo = {
 	},
 
 	NULL,
-	exit_debugger
+	exit_debugger,
+	NULL,
+	NULL
 };
 
 module_info *modules[] = {