blob: b965a6cc3dca34443219695f629d287388271dc0 (
plain)
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
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
//===-- TargetThreadWindowsLive.cpp------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lldb/Core/Log.h"
#include "lldb/Core/Logging.h"
#include "lldb/Core/State.h"
#include "lldb/Host/HostInfo.h"
#include "lldb/Host/HostNativeThreadBase.h"
#include "lldb/Host/windows/HostThreadWindows.h"
#include "lldb/Host/windows/windows.h"
#include "lldb/Target/RegisterContext.h"
#include "ProcessWindows.h"
#include "ProcessWindowsLog.h"
#include "TargetThreadWindowsLive.h"
#include "UnwindLLDB.h"
#if defined(_WIN64)
#include "x64/RegisterContextWindowsLive_x64.h"
#else
#include "x86/RegisterContextWindowsLive_x86.h"
#endif
using namespace lldb;
using namespace lldb_private;
TargetThreadWindowsLive::TargetThreadWindowsLive(ProcessWindows &process,
const HostThread &thread)
: TargetThreadWindows(process, thread), m_host_thread(thread) {}
TargetThreadWindowsLive::~TargetThreadWindowsLive() { DestroyThread(); }
void TargetThreadWindowsLive::RefreshStateAfterStop() {
::SuspendThread(m_host_thread.GetNativeThread().GetSystemHandle());
SetState(eStateStopped);
GetRegisterContext()->InvalidateIfNeeded(false);
}
void TargetThreadWindowsLive::WillResume(lldb::StateType resume_state) {}
void TargetThreadWindowsLive::DidStop() {}
RegisterContextSP TargetThreadWindowsLive::GetRegisterContext() {
if (!m_reg_context_sp)
m_reg_context_sp = CreateRegisterContextForFrameIndex(0);
return m_reg_context_sp;
}
RegisterContextSP
TargetThreadWindowsLive::CreateRegisterContextForFrame(StackFrame *frame) {
return CreateRegisterContextForFrameIndex(frame->GetConcreteFrameIndex());
}
RegisterContextSP
TargetThreadWindowsLive::CreateRegisterContextForFrameIndex(uint32_t idx) {
if (!m_reg_context_sp) {
ArchSpec arch = HostInfo::GetArchitecture();
switch (arch.GetMachine()) {
case llvm::Triple::x86:
#if defined(_WIN64)
// FIXME: This is a Wow64 process, create a RegisterContextWindows_Wow64
#else
m_reg_context_sp.reset(new RegisterContextWindowsLive_x86(*this, idx));
#endif
break;
case llvm::Triple::x86_64:
#if defined(_WIN64)
m_reg_context_sp.reset(new RegisterContextWindowsLive_x64(*this, idx));
#else
// LLDB is 32-bit, but the target process is 64-bit. We probably can't debug
// this.
#endif
default:
break;
}
}
return m_reg_context_sp;
}
bool TargetThreadWindowsLive::CalculateStopInfo() {
SetStopInfo(m_stop_info_sp);
return true;
}
Unwind *TargetThreadWindowsLive::GetUnwinder() {
// FIXME: Implement an unwinder based on the Windows unwinder exposed through
// DIA SDK.
if (m_unwinder_ap.get() == NULL)
m_unwinder_ap.reset(new UnwindLLDB(*this));
return m_unwinder_ap.get();
}
bool TargetThreadWindowsLive::DoResume() {
StateType resume_state = GetTemporaryResumeState();
StateType current_state = GetState();
if (resume_state == current_state)
return true;
if (resume_state == eStateStepping) {
uint32_t flags_index =
GetRegisterContext()->ConvertRegisterKindToRegisterNumber(
eRegisterKindGeneric, LLDB_REGNUM_GENERIC_FLAGS);
uint64_t flags_value =
GetRegisterContext()->ReadRegisterAsUnsigned(flags_index, 0);
flags_value |= 0x100; // Set the trap flag on the CPU
GetRegisterContext()->WriteRegisterFromUnsigned(flags_index, flags_value);
}
if (resume_state == eStateStepping || resume_state == eStateRunning) {
DWORD previous_suspend_count = 0;
HANDLE thread_handle = m_host_thread.GetNativeThread().GetSystemHandle();
do {
previous_suspend_count = ::ResumeThread(thread_handle);
} while (previous_suspend_count > 0);
}
return true;
}
|
