From d8eeb8a4cc504085d5e5dab14caf7d891f92d51a Mon Sep 17 00:00:00 2001
From: Zardshard <0azrune6@zard.anonaddy.com>
Date: Wed, 5 Apr 2023 10:22:37 -0400
Subject: [PATCH] Debugger: explain target must be specified for CLI debugger

Previous behaviour was to exit without any explanation.

Change-Id: I3350a139fadffb197c7833f3c46861a401f86271
Reviewed-on: https://review.haiku-os.org/c/haiku/+/6306
Reviewed-by: Rene Gollent <rene@gollent.com>
Reviewed-by: Adrien Destugues <pulkomandy@pulkomandy.tk>
Tested-by: Automation <automation@haiku-os.org>
---
 src/apps/debugger/Debugger.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/apps/debugger/Debugger.cpp b/src/apps/debugger/Debugger.cpp
index 8d3b02d0d9..2579c85b90 100644
--- a/src/apps/debugger/Debugger.cpp
+++ b/src/apps/debugger/Debugger.cpp
@@ -674,6 +674,14 @@ CliDebugger::~CliDebugger()
 bool
 CliDebugger::Run(const Options& options)
 {
+	if (options.commandLineArgc == 0
+		&& options.team < 0
+		&& options.thread < 0
+		&& options.coreFilePath == NULL) {
+		fprintf(stderr, "No target specified to debug\n");
+		return false;
+	}
+
 	// Block SIGINT, in this thread so all threads created by it inherit the
 	// a block mask with the signal blocked. In the input loop the signal will
 	// be unblocked again.