blob: 0b4f88cbd6700545fe54b4874560324535a228af (
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
|
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
#ifdef BIT64
#define ELF_CLASS ELFCLASS64
#else
#define ELF_CLASS ELFCLASS32
#endif
#define Ehdr ElfW(Ehdr)
#define Phdr ElfW(Phdr)
#define Shdr ElfW(Shdr)
#define Nhdr ElfW(Nhdr)
#define auxv_t ElfW(auxv_t)
#if defined(__x86_64__)
#define ELF_ARCH EM_X86_64
#elif defined(__i386__)
#define ELF_ARCH EM_386
#elif defined(__arm__)
#define ELF_ARCH EM_ARM
#endif
#define PH_HDR_CANARY 0xFFFF
#ifndef NT_FILE
#define NT_FILE 0x46494c45
#endif
class DumpWriter : IUnknown
{
private:
LONG m_ref; // reference count
int m_fd;
CrashInfo& m_crashInfo;
BYTE m_tempBuffer[0x4000];
public:
DumpWriter(CrashInfo& crashInfo);
virtual ~DumpWriter();
bool OpenDump(const char* dumpFileName);
bool WriteDump();
// IUnknown
STDMETHOD(QueryInterface)(___in REFIID InterfaceId, ___out PVOID* Interface);
STDMETHOD_(ULONG, AddRef)();
STDMETHOD_(ULONG, Release)();
private:
bool WriteProcessInfo();
bool WriteAuxv();
size_t GetNTFileInfoSize(size_t* alignmentBytes = nullptr);
bool WriteNTFileInfo();
bool WriteThread(const ThreadInfo& thread, int fatal_signal);
bool WriteData(const void* buffer, size_t length);
const size_t GetProcessInfoSize() const { return sizeof(Nhdr) + 8 + sizeof(prpsinfo_t); }
const size_t GetAuxvInfoSize() const { return sizeof(Nhdr) + 8 + m_crashInfo.GetAuxvSize(); }
const size_t GetThreadInfoSize() const
{
return m_crashInfo.Threads().size() * ((sizeof(Nhdr) + 8 + sizeof(prstatus_t))
#if defined(__i386__) || defined(__x86_64__)
+ sizeof(Nhdr) + 8 + sizeof(user_fpregs_struct)
#endif
#if defined(__i386__)
+ sizeof(Nhdr) + 8 + sizeof(user_fpxregs_struct)
#endif
);
}
};
static inline int sex()
{
int probe = 1;
return !*(char *)&probe;
}
|