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
125
126
127
| //===-- ProcessMachCore.h ---------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef liblldb_ProcessMachCore_h_
#define liblldb_ProcessMachCore_h_
#include <list>
#include <vector>
#include "lldb/Target/Process.h"
#include "lldb/Utility/ConstString.h"
#include "lldb/Utility/Status.h"
class ThreadKDP;
class ProcessMachCore : public lldb_private::Process {
public:
// Constructors and Destructors
ProcessMachCore(lldb::TargetSP target_sp, lldb::ListenerSP listener,
const lldb_private::FileSpec &core_file);
~ProcessMachCore() override;
static lldb::ProcessSP
CreateInstance(lldb::TargetSP target_sp, lldb::ListenerSP listener,
const lldb_private::FileSpec *crash_file_path);
static void Initialize();
static void Terminate();
static lldb_private::ConstString GetPluginNameStatic();
static const char *GetPluginDescriptionStatic();
// Check if a given Process
bool CanDebug(lldb::TargetSP target_sp,
bool plugin_specified_by_name) override;
// Creating a new process, or attaching to an existing one
lldb_private::Status DoLoadCore() override;
lldb_private::DynamicLoader *GetDynamicLoader() override;
// PluginInterface protocol
lldb_private::ConstString GetPluginName() override;
uint32_t GetPluginVersion() override;
// Process Control
lldb_private::Status DoDestroy() override;
void RefreshStateAfterStop() override;
// Process Queries
bool IsAlive() override;
bool WarnBeforeDetach() const override;
// Process Memory
size_t ReadMemory(lldb::addr_t addr, void *buf, size_t size,
lldb_private::Status &error) override;
size_t DoReadMemory(lldb::addr_t addr, void *buf, size_t size,
lldb_private::Status &error) override;
lldb_private::Status
GetMemoryRegionInfo(lldb::addr_t load_addr,
lldb_private::MemoryRegionInfo ®ion_info) override;
lldb::addr_t GetImageInfoAddress() override;
protected:
friend class ThreadMachCore;
void Clear();
bool UpdateThreadList(lldb_private::ThreadList &old_thread_list,
lldb_private::ThreadList &new_thread_list) override;
lldb_private::ObjectFile *GetCoreObjectFile();
private:
bool GetDynamicLoaderAddress(lldb::addr_t addr);
enum CorefilePreference { eUserProcessCorefile, eKernelCorefile };
/// If a core file can be interpreted multiple ways, this establishes
/// which style wins.
///
/// If a core file contains both a kernel binary and a user-process
/// dynamic loader, lldb needs to pick one over the other. This could
/// be a kernel corefile that happens to have a copy of dyld in its
/// memory. Or it could be a user process coredump of lldb while doing
/// kernel debugging - so a copy of the kernel is in its heap. This
/// should become a setting so it can be over-ridden when necessary.
CorefilePreference GetCorefilePreference() {
// For now, if both user process and kernel binaries a present,
// assume this is a kernel coredump which has a copy of a user
// process dyld in one of its pages.
return eKernelCorefile;
}
// For ProcessMachCore only
typedef lldb_private::Range<lldb::addr_t, lldb::addr_t> FileRange;
typedef lldb_private::RangeDataVector<lldb::addr_t, lldb::addr_t, FileRange>
VMRangeToFileOffset;
typedef lldb_private::RangeDataVector<lldb::addr_t, lldb::addr_t, uint32_t>
VMRangeToPermissions;
VMRangeToFileOffset m_core_aranges;
VMRangeToPermissions m_core_range_infos;
lldb::ModuleSP m_core_module_sp;
lldb_private::FileSpec m_core_file;
lldb::addr_t m_dyld_addr;
lldb::addr_t m_mach_kernel_addr;
lldb_private::ConstString m_dyld_plugin_name;
DISALLOW_COPY_AND_ASSIGN(ProcessMachCore);
};
#endif // liblldb_ProcessMachCore_h_
|