summaryrefslogtreecommitdiffstats
path: root/src/core/gdbstub/gdbstub.h
blob: 8f12c6a1d740646821ef331d48add10666ab3d50 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
// Copyright 2013 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.

// Originally written by Sven Peter <sven@fail0verflow.com> for anergistic.

#pragma once

#include "common/common_types.h"

namespace GDBStub {

/// Breakpoint Method
enum class BreakpointType {
    None,    ///< None
    Execute, ///< Execution Breakpoint
    Read,    ///< Read Breakpoint
    Write,   ///< Write Breakpoint
    Access   ///< Access (R/W) Breakpoint
};

struct BreakpointAddress {
    PAddr address;
    BreakpointType type;
};

/**
 * Set the port the gdbstub should use to listen for connections.
 *
 * @param port Port to listen for connection
 */
void SetServerPort(u16 port);

/**
 * Starts or stops the server if possible.
 *
 * @param status Set the server to enabled or disabled.
 */
void ToggleServer(bool status);

/// Start the gdbstub server.
void Init();

/// Stop gdbstub server.
void Shutdown();

/// Checks if the gdbstub server is enabled.
bool IsServerEnabled();

/// Returns true if there is an active socket connection.
bool IsConnected();

/**
 * Signal to the gdbstub server that it should halt CPU execution.
 *
 * @param is_memory_break If true, the break resulted from a memory breakpoint.
 */
void Break(bool is_memory_break = false);

/// Determine if there was a memory breakpoint.
bool IsMemoryBreak();

/// Read and handle packet from gdb client.
void HandlePacket();

/**
 * Get the nearest breakpoint of the specified type at the given address.
 *
 * @param addr Address to search from.
 * @param type Type of breakpoint.
 */
BreakpointAddress GetNextBreakpointFromAddress(PAddr addr, GDBStub::BreakpointType type);

/**
 * Check if a breakpoint of the specified type exists at the given address.
 *
 * @param addr Address of breakpoint.
 * @param type Type of breakpoint.
 */
bool CheckBreakpoint(PAddr addr, GDBStub::BreakpointType type);

// If set to true, the CPU will halt at the beginning of the next CPU loop.
bool GetCpuHaltFlag();

// If set to true and the CPU is halted, the CPU will step one instruction.
bool GetCpuStepFlag();

/**
 * When set to true, the CPU will step one instruction when the CPU is halted next.
 *
 * @param is_step
 */
void SetCpuStepFlag(bool is_step);
}