1 //===-- WindowsMiniDump.cpp -----------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // This function is separated out from ObjectFilePECOFF.cpp to name avoid name
10 // collisions with WinAPI preprocessor macros.
11
12 #include "WindowsMiniDump.h"
13 #include "lldb/Utility/FileSpec.h"
14 #include "llvm/Support/ConvertUTF.h"
15
16 #ifdef _WIN32
17 #include "lldb/Host/windows/windows.h"
18 #include <dbghelp.h>
19 #endif
20
21 namespace lldb_private {
22
SaveMiniDump(const lldb::ProcessSP & process_sp,const lldb_private::FileSpec & outfile,lldb_private::Status & error)23 bool SaveMiniDump(const lldb::ProcessSP &process_sp,
24 const lldb_private::FileSpec &outfile,
25 lldb_private::Status &error) {
26 if (!process_sp)
27 return false;
28 #ifdef _WIN32
29 HANDLE process_handle = ::OpenProcess(
30 PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, process_sp->GetID());
31 const std::string file_name = outfile.GetCString();
32 std::wstring wide_name;
33 wide_name.resize(file_name.size() + 1);
34 char *result_ptr = reinterpret_cast<char *>(&wide_name[0]);
35 const llvm::UTF8 *error_ptr = nullptr;
36 if (!llvm::ConvertUTF8toWide(sizeof(wchar_t), file_name, result_ptr,
37 error_ptr)) {
38 error.SetErrorString("cannot convert file name");
39 return false;
40 }
41 HANDLE file_handle =
42 ::CreateFileW(wide_name.c_str(), GENERIC_WRITE, FILE_SHARE_READ, NULL,
43 CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
44 const auto result =
45 ::MiniDumpWriteDump(process_handle, process_sp->GetID(), file_handle,
46 MiniDumpWithFullMemoryInfo, NULL, NULL, NULL);
47 ::CloseHandle(file_handle);
48 ::CloseHandle(process_handle);
49 if (!result) {
50 error.SetError(::GetLastError(), lldb::eErrorTypeWin32);
51 return false;
52 }
53 return true;
54 #endif
55 return false;
56 }
57
58 } // namesapce lldb_private
59