gdb: hio support (untested yet)

sysmodules/rosalina/include/gdb.h

@@ -58,6 +58,24 @@ typedef struct Breakpoint
     bool persistent;
 } Breakpoint;
 
+typedef struct PackedGdbHioRequest
+{
+    char magic[4]; // "GDB\x00"
+    u32 version;
+
+    // Request
+    char functionName[16+1];
+    char paramFormat[8+1];
+
+    u32 parameters[8];
+    u32 stringLengths[8];
+
+    // Return
+    int retval;
+    int gdbErrno;
+    bool ctrlC;
+} PackedGdbHioRequest;
+
 enum
 {
     GDB_FLAG_SELECTED = 1,
@@ -128,6 +146,9 @@ typedef struct GDBContext
     u32 nbWatchpoints;
     u32 watchpoints[2];
 
+    u32 currentHioRequestTargetAddr;
+    PackedGdbHioRequest currentHioRequest;
+
     bool enableExternalMemoryAccess;
     char *commandData, *commandEnd;
     int latestSentPacketSize;

sysmodules/rosalina/include/gdb/debug.h

@@ -38,6 +38,7 @@ GDB_DECLARE_HANDLER(Continue);
 GDB_DECLARE_VERBOSE_HANDLER(Continue);
 GDB_DECLARE_HANDLER(GetStopReason);
 
+void GDB_ContinueExecution(GDBContext *ctx);
 void GDB_PreprocessDebugEvent(GDBContext *ctx, DebugEventInfo *info);
 int GDB_SendStopReply(GDBContext *ctx, const DebugEventInfo *info);
 int GDB_HandleDebugEvents(GDBContext *ctx);

sysmodules/rosalina/include/gdb/hio.h

@@ -0,0 +1,35 @@
+/*
+*   This file is part of Luma3DS
+*   Copyright (C) 2016-2019 Aurora Wright, TuxSH
+*
+*   This program is free software: you can redistribute it and/or modify
+*   it under the terms of the GNU General Public License as published by
+*   the Free Software Foundation, either version 3 of the License, or
+*   (at your option) any later version.
+*
+*   This program is distributed in the hope that 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/>.
+*
+*   Additional Terms 7.b and 7.c of GPLv3 apply to this file:
+*       * Requiring preservation of specified reasonable legal notices or
+*         author attributions in that material or in the Appropriate Legal
+*         Notices displayed by works containing it.
+*       * Prohibiting misrepresentation of the origin of that material,
+*         or requiring that modified versions of such material be marked in
+*         reasonable ways as different from the original version.
+*/
+
+#pragma once
+
+#include "gdb.h"
+
+bool GDB_FetchPackedHioRequest(GDBContext *ctx, u32 addr);
+bool GDB_IsHioInProgress(GDBContext *ctx);
+int GDB_SendCurrentHioRequest(GDBContext *ctx);
+
+GDB_DECLARE_HANDLER(HioReply);

sysmodules/rosalina/include/gdb/mem.h

@@ -28,8 +28,11 @@
 
 #include "gdb.h"
 
-Result GDB_ReadMemoryInPage(void *out, GDBContext *ctx, u32 addr, u32 len);
-Result GDB_WriteMemoryInPage(GDBContext *ctx, const void *in, u32 addr, u32 len);
+Result GDB_ReadTargetMemoryInPage(void *out, GDBContext *ctx, u32 addr, u32 len);
+Result GDB_WriteTargetMemoryInPage(GDBContext *ctx, const void *in, u32 addr, u32 len);
+u32 GDB_ReadTargetMemory(void *out, GDBContext *ctx, u32 addr, u32 len);
+u32 GDB_WriteTargetMemory(GDBContext *ctx, const void *in, u32 addr, u32 len);
+
 int GDB_SendMemory(GDBContext *ctx, const char *prefix, u32 prefixLen, u32 addr, u32 len);
 int GDB_WriteMemory(GDBContext *ctx, const void *buf, u32 addr, u32 len);
 u32 GDB_SearchMemory(bool *found, GDBContext *ctx, u32 addr, u32 len, const void *pattern, u32 patternLen);