From b60f42b281e4b465ff3cd6f964ab10d238ad31bd Mon Sep 17 00:00:00 2001
From: GalaxyShard <76917584+GalaxyShard@users.noreply.github.com>
Date: Sun, 27 Oct 2024 21:06:59 +0000
Subject: [PATCH] Fix gdb break on start & gdb ports not closing after
 restarting/crashing (#2167)

---
 src/ARM.cpp           | 1 +
 src/debug/GdbStub.cpp | 9 +++++++++
 2 files changed, 10 insertions(+)

diff --git a/src/ARM.cpp b/src/ARM.cpp
index 4cf70749..b7b703da 100644
--- a/src/ARM.cpp
+++ b/src/ARM.cpp
@@ -110,6 +110,7 @@ const u32 ARM::ConditionTable[16] =
 ARM::ARM(u32 num, bool jit, std::optional<GDBArgs> gdb, melonDS::NDS& nds) :
 #ifdef GDBSTUB_ENABLED
     GdbStub(this, gdb ? (num ? gdb->PortARM7 : gdb->PortARM9) : 0),
+    BreakOnStartup(gdb ? (num ? gdb->ARM7BreakOnStartup : gdb->ARM9BreakOnStartup) : false),
 #endif
     Num(num), // well uh
     NDS(nds)
diff --git a/src/debug/GdbStub.cpp b/src/debug/GdbStub.cpp
index 14a8670a..b055794a 100644
--- a/src/debug/GdbStub.cpp
+++ b/src/debug/GdbStub.cpp
@@ -101,6 +101,15 @@ bool GdbStub::Init()
 		Log(LogLevel::Error, "[GDB] err: can't create a socket fd\n");
 		goto err;
 	}
+	{
+		// Make sure the port can be reused immediately after melonDS stops and/or restarts
+		int enable = 1;
+#ifdef _WIN32
+		setsockopt(SockFd, SOL_SOCKET, SO_REUSEADDR, (const char*)&enable, sizeof(enable));
+#else
+		setsockopt(SockFd, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(enable));
+#endif
+	}
 #ifndef __linux__
 	SocketSetBlocking(SockFd, false);
 #endif