GDB Stub: add support for various query packets

These tends to get requested from either pure GDB or Ghidra. They reduce the verbosity of the communications. The QSupported packet is also important to implemnent for future proofing too.

1 files changed, 14 insertions, 6 deletions

diff --git a/Source/Core/Core/PowerPC/GDBStub.cpp b/Source/Core/Core/PowerPC/GDBStub.cpp
index 45896ec4ab..9e80cebbf0 100644
--- a/Source/Core/Core/PowerPC/GDBStub.cpp
+++ b/Source/Core/Core/PowerPC/GDBStub.cpp
@@ -307,12 +307,20 @@ static void SendReply(const char* reply)
 
 static void HandleQuery()
 {
-  DEBUG_LOG_FMT(GDB_STUB, "gdb: query '{}'", CommandBufferAsString() + 1);
-
-  if (!strcmp((const char*)(s_cmd_bfr + 1), "TStatus"))
-  {
-    return SendReply("T0");
-  }
+  DEBUG_LOG_FMT(GDB_STUB, "gdb: query '{}'", CommandBufferAsString());
+
+  if (!strncmp((const char*)(s_cmd_bfr), "qAttached", strlen("qAttached")))
+    return SendReply("1");
+  if (!strcmp((const char*)(s_cmd_bfr), "qC"))
+    return SendReply("QC1");
+  if (!strcmp((const char*)(s_cmd_bfr), "qfThreadInfo"))
+    return SendReply("m1");
+  else if (!strcmp((const char*)(s_cmd_bfr), "qsThreadInfo"))
+    return SendReply("l");
+  else if (!strncmp((const char*)(s_cmd_bfr), "qThreadExtraInfo", strlen("qThreadExtraInfo")))
+    return SendReply("00");
+  else if (!strncmp((const char*)(s_cmd_bfr), "qSupported", strlen("qSupported")))
+    return SendReply("swbreak+;hwbreak+");
 
   SendReply("");
 }