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https://github.com/Atmosphere-NX/Atmosphere.git
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119 lines
2.9 KiB
C
119 lines
2.9 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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* SPDX-License-Identifier: (MIT OR GPL-2.0-or-later)
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*/
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#pragma once
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#include "utils.h"
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#include "spinlock.h"
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#define MAX_CTX 3
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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 0x800
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#define GDB_WORK_BUF_LEN 0x2000
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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 PackedGdbHioRequest
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{
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char magic[4]; // "GDB\x00"
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u32 version;
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// Request
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char functionName[16+1];
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char paramFormat[8+1];
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u64 parameters[8];
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size_t stringLengths[8];
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// Return
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s64 retval;
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int gdbErrno;
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bool ctrlC;
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} PackedGdbHioRequest;
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enum {
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GDB_FLAG_SELECTED = BIT(0),
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GDB_FLAG_USED = BIT(1),
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GDB_FLAG_ALLOCATED_MASK = GDB_FLAG_SELECTED | GDB_FLAG_USED,
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GDB_FLAG_EXTENDED_REMOTE = BIT(2), // unused here
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GDB_FLAG_NOACK = BIT(3),
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GDB_FLAG_RESTART_MASK = GDB_FLAG_NOACK | GDB_FLAG_EXTENDED_REMOTE | GDB_FLAG_USED,
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GDB_FLAG_CONTINUING = BIT(4),
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GDB_FLAG_TERMINATE = BIT(5),
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GDB_FLAG_ATTACHED_AT_START = BIT(6),
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GDB_FLAG_NONSTOP = BIT(7),
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//GDB_FLAG_CREATED = BIT(7),
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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_ATTACHED,
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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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TransportInterface *transportIface;
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struct GDBServer *parent;
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RecursiveSpinlock lock;
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u32 flags;
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GDBState state;
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bool noAckSent;
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u32 currentThreadId;
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bool catchThreadEvents;
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bool processEnded, processExited;
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//DebugEventInfo latestDebugEvent; FIXME
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uintptr_t currentHioRequestTargetAddr;
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PackedGdbHioRequest currentHioRequest;
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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 *workBuffer;
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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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void GDB_Attach(GDBContext *ctx);
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void GDB_Detach(GDBContext *ctx);
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static inline bool GDB_IsAttached(GDBContext *ctx)
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{
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return ctx->state == GDB_STATE_ATTACHED;
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}
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GDB_DECLARE_HANDLER(Unsupported);
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GDB_DECLARE_HANDLER(EnableExtendedMode);
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