From 14d770b2f1df8ec9cdb7b1ef60e7870b3e3f849d Mon Sep 17 00:00:00 2001
From: Brian Leung <leungbk@mailfence.com>
Date: Mon, 19 Jul 2021 23:41:01 -0700
Subject: [PATCH 1/2] Ensure that gud commands for M-x gdb are handled by
 repeat-mode

* lisp/progmodes/gud.el (gud-gdb-repeat-map): Rename from
gud-repeat-map, and populate at the top-level.
(gud-set-repeat-map-property): Introduce this helper function for
setting the repeat-map property.
(gud-gdb): Use the gud-set-repeat-map-property function to assign the
repeat-map property.

* lisp/progmodes/gdb-mi.el (gdb): Use the gud-set-repeat-map-property
function to assign the repeat-map property.

Because different debugging tools may not support all of the gud-foo
functions, we reassign the repeat-map property within the respective
commands, as opposed to the top level of the files, to ensure that the
repeat-map property is reassigned each time to a symbol corresponding
to the active debugging tool.
---
 lisp/progmodes/gdb-mi.el |  2 ++
 lisp/progmodes/gud.el    | 32 ++++++++++++++++++++------------
 2 files changed, 22 insertions(+), 12 deletions(-)

diff --git a/lisp/progmodes/gdb-mi.el b/lisp/progmodes/gdb-mi.el
index aa3365278c..28892f9c96 100644
--- a/lisp/progmodes/gdb-mi.el
+++ b/lisp/progmodes/gdb-mi.el
@@ -979,6 +979,8 @@ gdb
   (define-key gud-minor-mode-map [left-margin C-mouse-3]
     'gdb-mouse-jump)
 
+  (gud-set-repeat-map-property gud-gdb-repeat-map)
+
   (setq-local gud-gdb-completion-function 'gud-gdbmi-completions)
 
   (add-hook 'completion-at-point-functions #'gud-gdb-completion-at-point
diff --git a/lisp/progmodes/gud.el b/lisp/progmodes/gud.el
index 740a6e2581..402833025f 100644
--- a/lisp/progmodes/gud.el
+++ b/lisp/progmodes/gud.el
@@ -320,10 +320,27 @@ gud-tool-bar-map
       (tool-bar-local-item-from-menu
        (car x) (cdr x) map gud-minor-mode-map))))
 
-(defvar gud-repeat-map (make-sparse-keymap)
-  "Keymap to repeat gud stepping instructions `C-x C-a C-n n n'.
+(defvar gud-gdb-repeat-map
+  (let ((map (make-sparse-keymap)))
+    (pcase-dolist (`(,key . ,cmd) '(("n" . gud-next)
+                                    ("s" . gud-step)
+                                    ("i" . gud-stepi)
+                                    ("c" . gud-cont)
+                                    ("l" . gud-refresh)
+                                    ("f" . gud-finish)
+                                    ("<" . gud-up)
+                                    (">" . gud-down)))
+      (define-key map key cmd))
+    map)
+  "Keymap to repeat `gud-gdb' stepping instructions `C-x C-a C-n n n'.
 Used in `repeat-mode'.")
 
+(defmacro gud-set-repeat-map-property (keymap)
+  "Set the `repeat-map' property of each command in KEYMAP to KEYMAP."
+  `(map-keymap-internal (lambda (_ cmd)
+                          (put cmd 'repeat-map ',keymap))
+                        ,keymap))
+
 (defun gud-file-name (f)
   "Transform a relative file name to an absolute file name.
 Uses `gud-<MINOR-MODE>-directories' to find the source files."
@@ -814,16 +831,7 @@ gud-gdb
   (gud-def gud-until  "until %l" "\C-u" "Continue to current line.")
   (gud-def gud-run    "run"	 nil    "Run the program.")
 
-  (dolist (cmd '(("n" . gud-next)
-                 ("s" . gud-step)
-                 ("i" . gud-stepi)
-                 ("c" . gud-cont)
-                 ("l" . gud-refresh)
-                 ("f" . gud-finish)
-                 ("<" . gud-up)
-                 (">" . gud-down)))
-    (define-key gud-repeat-map (car cmd) (cdr cmd))
-    (put (cdr cmd) 'repeat-map 'gud-repeat-map))
+  (gud-set-repeat-map-property gud-gdb-repeat-map)
 
   (add-hook 'completion-at-point-functions #'gud-gdb-completion-at-point
             nil 'local)
-- 
2.32.0