thermosphere: gdb: remove server, rewrite data processing in gdb/context and gdb/net

thermosphere/src/gdb/context.h

@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) 2019 Atmosphère-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+// Lots of code from:
+/*
+*   This file is part of Luma3DS.
+*   Copyright (C) 2016-2019 Aurora Wright, TuxSH
+*
+*   SPDX-License-Identifier: (MIT OR GPL-2.0-or-later)
+*/
+
+#pragma once
+
+#include "defines.h"
+#include "transport_interface.h"
+
+typedef struct PackedGdbHioRequest
+{
+    char magic[4]; // "GDB\x00"
+    u32 version;
+
+    // Request
+    char functionName[16+1];
+    char paramFormat[8+1];
+
+    u64 parameters[8];
+    size_t stringLengths[8];
+
+    // Return
+    s64 retval;
+    int gdbErrno;
+    bool ctrlC;
+} PackedGdbHioRequest;
+
+enum {
+    GDB_FLAG_NOACK              = BIT(0),
+    GDB_FLAG_CONTINUING         = BIT(1),
+    GDB_FLAG_TERMINATE          = BIT(2),
+    GDB_FLAG_ATTACHED_AT_START  = BIT(3),
+    GDB_FLAG_NONSTOP            = BIT(4),
+};
+
+typedef enum GDBState
+{
+    GDB_STATE_DISCONNECTED,
+    GDB_STATE_CONNECTED,
+    GDB_STATE_ATTACHED,
+    GDB_STATE_DETACHING,
+} GDBState;
+
+typedef struct GDBContext {
+    // No need for a lock, it's in the transport interface layer...
+
+    TransportInterface *transportInterface;
+    u32 flags;
+    GDBState state;
+    bool noAckSent;
+
+    u32 currentThreadId;
+    u32 selectedThreadId;
+    u32 selectedThreadIdForContinuing;
+    bool catchThreadEvents;
+    bool processEnded, processExited;
+
+    //DebugEventInfo latestDebugEvent; FIXME
+
+    uintptr_t currentHioRequestTargetAddr;
+    PackedGdbHioRequest currentHioRequest;
+
+    size_t targetXmlLen;
+
+    char *commandData, *commandEnd;
+    size_t lastSentPacketSize;
+    char *buffer[GDB_BUF_LEN + 4];
+    char *workBuffer;
+} GDBContext;
+
+typedef int (*GDBCommandHandler)(GDBContext *ctx);
+
+void GDB_InitializeContext(GDBContext *ctx, TransportInterfaceType ifaceType, u32 ifaceId, u32 ifaceFlags);
+
+void GDB_AttachToContext(GDBContext *ctx);
+void GDB_DetachFromContext(GDBContext *ctx);
+
+void GDB_AcquireContext(GDBContext *ctx);
+void GDB_ReleaseContext(GDBContext *ctx);
+void GDB_MigrateRxIrq(GDBContext *ctx, u32 newAffinity);
+
+GDB_DECLARE_HANDLER(Unsupported);
+GDB_DECLARE_HANDLER(EnableExtendedMode);
+
+static inline bool GDB_IsAttached(GDBContext *ctx)
+{
+    return ctx->state == GDB_STATE_ATTACHED;
+}