142 lines
4.0 KiB
C
142 lines
4.0 KiB
C
/*
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* This file is part of Luma3DS
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* Copyright (C) 2016-2019 Aurora Wright, TuxSH
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* Additional Terms 7.b and 7.c of GPLv3 apply to this file:
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* * Requiring preservation of specified reasonable legal notices or
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* author attributions in that material or in the Appropriate Legal
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* Notices displayed by works containing it.
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* * Prohibiting misrepresentation of the origin of that material,
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* or requiring that modified versions of such material be marked in
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* reasonable ways as different from the original version.
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*/
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#pragma once
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#include <3ds/types.h>
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#include <3ds/svc.h>
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#include <3ds/synchronization.h>
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#include <3ds/result.h>
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#include "sock_util.h"
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#include "memory.h"
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#define MAX_DEBUG 3
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#define MAX_DEBUG_THREAD 127
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#define MAX_BREAKPOINT 256
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// 512+24 is the ideal size as IDA will try to read exactly 0x100 bytes at a time. Add 4 to this, for $#<checksum>, see below.
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// IDA seems to want additional bytes as well.
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// 1024 is fine enough to put all regs in the 'T' stop reply packets
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#define GDB_BUF_LEN 1024
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#define GDB_HANDLER(name) GDB_Handle##name
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#define GDB_QUERY_HANDLER(name) GDB_HANDLER(Query##name)
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#define GDB_VERBOSE_HANDLER(name) GDB_HANDLER(Verbose##name)
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#define GDB_DECLARE_HANDLER(name) int GDB_HANDLER(name)(GDBContext *ctx)
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#define GDB_DECLARE_QUERY_HANDLER(name) GDB_DECLARE_HANDLER(Query##name)
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#define GDB_DECLARE_VERBOSE_HANDLER(name) GDB_DECLARE_HANDLER(Verbose##name)
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typedef struct Breakpoint
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{
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u32 address;
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u32 savedInstruction;
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u8 instructionSize;
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bool persistent;
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} Breakpoint;
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enum
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{
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GDB_FLAG_SELECTED = 1,
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GDB_FLAG_USED = 2,
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GDB_FLAG_ALLOCATED_MASK = GDB_FLAG_SELECTED | GDB_FLAG_USED,
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GDB_FLAG_NOACK = 4,
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GDB_FLAG_PROCESS_CONTINUING = 8,
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GDB_FLAG_TERMINATE_PROCESS = 16,
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GDB_FLAG_ATTACHED_AT_START = 32,
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};
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typedef enum GDBState
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{
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GDB_STATE_DISCONNECTED,
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GDB_STATE_CONNECTED,
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GDB_STATE_NOACK_SENT,
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GDB_STATE_DETACHING
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} GDBState;
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typedef struct ThreadInfo
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{
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u32 id;
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u32 tls;
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} ThreadInfo;
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struct GDBServer;
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typedef struct GDBContext
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{
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sock_ctx super;
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struct GDBServer *parent;
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RecursiveLock lock;
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u16 localPort;
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u32 flags;
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GDBState state;
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u32 pid;
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Handle debug;
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ThreadInfo threadInfos[MAX_DEBUG_THREAD];
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u32 nbThreads;
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u32 currentThreadId, selectedThreadId, selectedThreadIdForContinuing;
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u32 totalNbCreatedThreads;
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Handle processAttachedEvent, continuedEvent;
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Handle eventToWaitFor;
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bool catchThreadEvents;
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bool processEnded, processExited;
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DebugEventInfo latestDebugEvent;
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DebugFlags continueFlags;
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u32 svcMask[8];
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u32 nbBreakpoints;
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Breakpoint breakpoints[MAX_BREAKPOINT];
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u32 nbWatchpoints;
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u32 watchpoints[2];
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bool enableExternalMemoryAccess;
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char *commandData, *commandEnd;
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int latestSentPacketSize;
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char buffer[GDB_BUF_LEN + 4];
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char threadListData[0x800];
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u32 threadListDataPos;
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char memoryOsInfoXmlData[0x800];
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char processesOsInfoXmlData[0x2000];
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} GDBContext;
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typedef int (*GDBCommandHandler)(GDBContext *ctx);
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void GDB_InitializeContext(GDBContext *ctx);
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void GDB_FinalizeContext(GDBContext *ctx);
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Result GDB_AttachToProcess(GDBContext *ctx);
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void GDB_DetachFromProcess(GDBContext *ctx);
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GDB_DECLARE_HANDLER(Unsupported);
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