Implemented "exit" command.

cmddb.c

@@ -234,6 +234,13 @@ const struct cmddb_record commands[] = {
 "locka [set|clear]\n"
 "    Show or change the status of the LOCKA flash write-protect bit.\n"
 	},
+	{
+		.name = "exit",
+		.func = cmd_exit,
+		.help =
+"exit\n"
+"    Exit from MSPDebug.\n"
+	}
 };
 
 int cmddb_get(const char *name, struct cmddb_record *ret)

mspdebug.man

@@ -174,6 +174,8 @@ bit in the flash memory controller).
 
 Specify "segment" and a memory address to erase an individual flash
 segment.
+.IP "\fBexit\fR"
+Exit from MSPDebug.
 .IP "\fBgdb\fR [\fIport\fR]"
 Start a GDB remote stub, optionally specifying a TCP port to listen on.
 If no port is given, the default port is 2000.

reader.c

@@ -38,6 +38,7 @@
 
 static int modify_flags;
 static int in_reader_loop;
+static int want_exit;
 
 void mark_modified(int flags)
 {
@@ -57,7 +58,7 @@ int prompt_abort(int flags)
                 return 0;
 
         for (;;) {
-                printc("Symbols have not been saved since modification. "
+                printf("Symbols have not been saved since modification. "
                        "Continue (y/n)? ");
                 fflush(stdout);
 
@@ -141,6 +142,11 @@ static int do_command(char *arg, int interactive)
 	return 0;
 }
 
+void reader_exit(void)
+{
+	want_exit = 1;
+}
+
 void reader_loop(void)
 {
 	int old = in_reader_loop;
@@ -154,19 +160,25 @@ void reader_loop(void)
 	}
 
 	do {
+		want_exit = 0;
+
 		for (;;) {
 			char *buf = readline("(mspdebug) ");
 
-			if (!buf)
+			if (!buf) {
+				printc("\n");
 				break;
+			}
 
 			add_history(buf);
 			do_command(buf, 1);
 			free(buf);
+
+			if (want_exit)
+				break;
 		}
 	} while (prompt_abort(MODIFY_SYMS));
 
-	printc("\n");
 	in_reader_loop = old;
 }
 

reader.h

@@ -46,6 +46,9 @@ int prompt_abort(int flags);
 /* Run the reader loop */
 void reader_loop(void);
 
+/* Cause the reader loop to exit */
+void reader_exit(void);
+
 /* Commands can be fed directly to the processor either one at a time,
  * or by specifying a file to read from.
  */

stdcmd.c

@@ -242,3 +242,9 @@ int cmd_read(char **arg)
 
 	return process_file(filename);
 }
+
+int cmd_exit(char **arg)
+{
+	reader_exit();
+	return 0;
+}

stdcmd.h

@@ -23,5 +23,6 @@
 int cmd_help(char **arg);
 int cmd_read(char **arg);
 int cmd_opt(char **arg);
+int cmd_exit(char **arg);
 
 #endif