Add dap-gdb.

Fixes <#790>.

dap-gdb.el

@@ -0,0 +1,89 @@
+;;; dap-gdb.el --- Debug Adapter Protocol mode for LLDB/GDB      -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2019  Ivan Yonchovski
+;; Copyright (C) 2024  Danny Milosavljevic
+
+;; Author: Ivan Yonchovski [email protected]
+;; Keywords: languages
+
+;; This program 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 3 of the License, or
+;; (at your option) any later version.
+
+;; This program 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, see <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+;; Adapter for GDB version >= 14
+
+;;; Code:
+
+(require 'dap-mode)
+(require 'dap-utils)
+
+(defcustom dap-gdb-debug-program `("gdb" "-i" "dap"))
+  "The path to the GDB debugger."
+  :group 'dap-gdb
+  :type '(repeat string))
+
+(defcustom dap-gdbserver-debug-program `("gdbserver" "-i" "dap"))
+  "The path to the GDB debugger server."
+  :group 'dap-gdb
+  :type '(repeat string))
+
+(defun dap-gdb--populate-gdb (conf)
+  "Populate CONF with the required arguments."
+  (-> conf
+      (dap--put-if-absent :dap-server-path dap-gdb-debug-program)
+      (dap--put-if-absent :type "gdb")
+      (dap--put-if-absent :cwd default-directory)
+      ;(dap--put-if-absent :target (expand-file-name (read-file-name "Select file to debug.")))
+      (dap--put-if-absent :name "GDB Debug")
+
+      (dap--put-if-absent :valuesFormatting "prettyPrinters")))
+
+(dap-register-debug-provider "gdb" 'dap-gdb--populate-gdb)
+(dap-register-debug-template "GDB Run Configuration"
+                             (list :type "gdb"
+                                   :request "launch"
+                                   :name "GDB::Run"
+                                   :target nil
+                                   :cwd nil))
+
+(defun dap-gdb--populate-gdbserver (conf)
+  "Populate CONF with the required arguments."
+  (-> conf
+      (dap--put-if-absent :dap-server-path dap-gdbserver-debug-program)
+      (dap--put-if-absent :type "gdbserver")
+      (dap--put-if-absent :name "GDB Server")
+      (dap--put-if-absent :request "attach")
+      (dap--put-if-absent :gdbpath "gdb")
+      (dap--put-if-absent :cwd default-directory)
+      (dap--put-if-absent :target (read-string "target?(host:port) "))
+      (dap--put-if-absent :remote :json-true)
+
+      (dap--put-if-absent :valuesFormatting "prettyPrinters")))
+
+
+(dap-register-debug-provider "gdbserver" 'dap-gdb--populate-gdbserver)
+(dap-register-debug-template "GDBServer Connect Configuration"
+                             (list :type "gdbserver"
+                                   :name "GDBServer::Connect"
+                                   :target nil ;;host:port
+                                   :cwd nil
+                                   :executable nil ;;usually not needed as symbols can be downloaded from gdbserver
+                                   :autorun nil
+                                   :debugger_args nil
+                                   :env nil
+                                   :showDevDebugOutput :json-false
+                                   :printCalls :json-false))
+
+
+(provide 'dap-gdb)
+;;; dap-gdb.el ends here