From 656ef0d2c0c7d111215f20ac50336d8ea9349e80 Mon Sep 17 00:00:00 2001
From: WebFreak001 <janju007@web.de>
Date: Fri, 14 Apr 2017 18:11:36 +0200
Subject: [PATCH] Fix #102

---
 src/backend/mi2/mi2.ts     | 3 +++
 src/backend/mi2/mi2lldb.ts | 1 +
 src/mibase.ts              | 7 +++++++
 3 files changed, 11 insertions(+)

diff --git a/src/backend/mi2/mi2.ts b/src/backend/mi2/mi2.ts
index 5f340bb..a7f004a 100644
--- a/src/backend/mi2/mi2.ts
+++ b/src/backend/mi2/mi2.ts
@@ -41,6 +41,7 @@ export class MI2 extends EventEmitter implements IBackend {
 			this.process.stdout.on("data", this.stdout.bind(this));
 			this.process.stderr.on("data", this.stderr.bind(this));
 			this.process.on("exit", (() => { this.emit("quit"); }).bind(this));
+			this.process.on("error", ((err) => { this.emit("launcherror", err); }).bind(this));
 			let promises = this.initCommands(target, cwd);
 			if (procArgs && procArgs.length)
 				promises.push(this.sendCommand("exec-arguments " + procArgs));
@@ -196,6 +197,7 @@ export class MI2 extends EventEmitter implements IBackend {
 			this.process.stdout.on("data", this.stdout.bind(this));
 			this.process.stderr.on("data", this.stderr.bind(this));
 			this.process.on("exit", (() => { this.emit("quit"); }).bind(this));
+			this.process.on("error", ((err) => { this.emit("launcherror", err); }).bind(this));
 			var commands = [
 				this.sendCommand("gdb-set target-async on"),
 				this.sendCommand("environment-directory \"" + escape(cwd) + "\"")
@@ -224,6 +226,7 @@ export class MI2 extends EventEmitter implements IBackend {
 			this.process.stdout.on("data", this.stdout.bind(this));
 			this.process.stderr.on("data", this.stderr.bind(this));
 			this.process.on("exit", (() => { this.emit("quit"); }).bind(this));
+			this.process.on("error", ((err) => { this.emit("launcherror", err); }).bind(this));
 			Promise.all([
 				this.sendCommand("gdb-set target-async on"),
 				this.sendCommand("environment-directory \"" + escape(cwd) + "\""),
diff --git a/src/backend/mi2/mi2lldb.ts b/src/backend/mi2/mi2lldb.ts
index 6cb5263..cb75269 100644
--- a/src/backend/mi2/mi2lldb.ts
+++ b/src/backend/mi2/mi2lldb.ts
@@ -29,6 +29,7 @@ export class MI2_LLDB extends MI2 {
 			this.process.stdout.on("data", this.stdout.bind(this));
 			this.process.stderr.on("data", this.stderr.bind(this));
 			this.process.on("exit", (() => { this.emit("quit"); }).bind(this));
+			this.process.on("error", ((err) => { this.emit("launcherror", err); }).bind(this));
 			Promise.all([
 				this.sendCommand("gdb-set target-async on"),
 				this.sendCommand("file-exec-and-symbols \"" + escape(executable) + "\""),
diff --git a/src/mibase.ts b/src/mibase.ts
index 5f53c9a..03819ea 100644
--- a/src/mibase.ts
+++ b/src/mibase.ts
@@ -39,6 +39,7 @@ export class MI2DebugSession extends DebugSession {
 	}
 
 	protected initDebugger() {
+		this.miDebugger.on("launcherror", this.launchError.bind(this));
 		this.miDebugger.on("quit", this.quitEvent.bind(this));
 		this.miDebugger.on("exited-normally", this.quitEvent.bind(this));
 		this.miDebugger.on("stopped", this.stopEvent.bind(this));
@@ -109,6 +110,12 @@ export class MI2DebugSession extends DebugSession {
 		this.sendEvent(new TerminatedEvent());
 	}
 
+	protected launchError(err: any) {
+		this.handleMsg("stderr", "Could not start debugger process, does the program exist in filesystem?\n");
+		this.handleMsg("stderr", err.toString() + "\n");
+		this.quitEvent();
+	}
+
 	protected disconnectRequest(response: DebugProtocol.DisconnectResponse, args: DebugProtocol.DisconnectArguments): void {
 		if (this.attached)
 			this.miDebugger.detach();