From a7d63cde543e1e1f74a376e3ff7194abe33a6894 Mon Sep 17 00:00:00 2001
From: Vicki Pfau <vi@endrift.com>
Date: Wed, 10 May 2023 23:08:29 -0700
Subject: [PATCH] Core: Reattaching the same debugger is a no-op

---
 src/gb/core.c  | 3 +++
 src/gba/core.c | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/src/gb/core.c b/src/gb/core.c
index b35616f2b..f1358ee69 100644
--- a/src/gb/core.c
+++ b/src/gb/core.c
@@ -1061,6 +1061,9 @@ static struct CLIDebuggerSystem* _GBCoreCliDebuggerSystem(struct mCore* core) {
 
 static void _GBCoreAttachDebugger(struct mCore* core, struct mDebugger* debugger) {
 	struct SM83Core* cpu = core->cpu;
+	if (core->debugger == debugger) {
+		return;
+	}
 	if (core->debugger) {
 		SM83HotplugDetach(cpu, CPU_COMPONENT_DEBUGGER);
 	}
diff --git a/src/gba/core.c b/src/gba/core.c
index 851a9dee6..7a4650a33 100644
--- a/src/gba/core.c
+++ b/src/gba/core.c
@@ -1129,6 +1129,9 @@ static struct CLIDebuggerSystem* _GBACoreCliDebuggerSystem(struct mCore* core) {
 }
 
 static void _GBACoreAttachDebugger(struct mCore* core, struct mDebugger* debugger) {
+	if (core->debugger == debugger) {
+		return;
+	}
 	if (core->debugger) {
 		GBADetachDebugger(core->board);
 	}