* top.c (SIGJMP_BUF, SIGSETJMP, SIGLONGJMP): Update comments.

[deliverable/binutils-gdb.git] / gdb / defs.h

diff --git a/gdb/defs.h b/gdb/defs.h
index ba958c7dbfc18504cb8317a151802fedb1854f86..c4756f162ceaee781c5da32536e6b120ff0f4bcd 100644 (file)
--- a/gdb/defs.h
+++ b/gdb/defs.h
@@ -801,21 +801,24 @@ extern NORETURN void internal_error (char *, ...) ATTR_NORETURN;
 
 extern NORETURN void nomem (long) ATTR_NORETURN;
 
-/* Reasons for calling return_to_top_level.  */
+/* Reasons for calling return_to_top_level.  Note: enum value 0 is
+   reserved for internal use as the return value from an initial
+   setjmp().  */
 
 enum return_reason
   {
     /* User interrupt.  */
-    RETURN_QUIT,
+    RETURN_QUIT = 1,
     /* Any other error.  */
     RETURN_ERROR
   };
 
 #define        ALL_CLEANUPS    ((struct cleanup *)0)
 
-#define RETURN_MASK_QUIT (1 << (int)RETURN_QUIT)
-#define RETURN_MASK_ERROR (1 << (int)RETURN_ERROR)
-#define RETURN_MASK_ALL (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
+#define RETURN_MASK(reason)    (1 << (int)(reason))
+#define RETURN_MASK_QUIT       RETURN_MASK (RETURN_QUIT)
+#define RETURN_MASK_ERROR      RETURN_MASK (RETURN_ERROR)
+#define RETURN_MASK_ALL                (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
 typedef int return_mask;
 
 extern NORETURN void return_to_top_level (enum return_reason) ATTR_NORETURN;
@@ -1122,6 +1125,16 @@ extern int watchdog;
 
 /* Hooks for alternate command interfaces.  */
 
+#ifdef UI_OUT
+/* The name of the interpreter if specified on the command line. */
+extern char *interpreter_p;
+#endif
+
+/* If a given interpreter matches INTERPRETER_P then it should update
+   command_loop_hook and init_ui_hook with the per-interpreter
+   implementation. */
+/* FIXME: command_loop_hook and init_ui_hook should be moved here. */
+
 struct target_waitstatus;
 struct cmd_list_element;