blob: fe05f3068bb44451cba5bd019a5177d40b356b82 (
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
|
//===-- TargetThreadWindows.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 "TargetThreadWindows.h"
#include "UnwindLLDB.h"
using namespace lldb;
using namespace lldb_private;
TargetThreadWindows::TargetThreadWindows(ProcessWindows &process,
const HostThread &thread)
: Thread(process, thread.GetNativeThread().GetThreadId()),
m_host_thread(thread) {}
TargetThreadWindows::~TargetThreadWindows() { DestroyThread(); }
void TargetThreadWindows::RefreshStateAfterStop() {
::SuspendThread(m_host_thread.GetNativeThread().GetSystemHandle());
SetState(eStateStopped);
GetRegisterContext()->InvalidateIfNeeded(false);
}
void TargetThreadWindows::WillResume(lldb::StateType resume_state) {}
void TargetThreadWindows::DidStop() {}
bool TargetThreadWindows::CalculateStopInfo() {
SetStopInfo(m_stop_info_sp);
return true;
}
Unwind *TargetThreadWindows::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 TargetThreadWindows::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;
}
|
