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 23 bool SaveMiniDump(const lldb::ProcessSP &process_sp, 24 SaveCoreOptions &core_options, lldb_private::Status &error) { 25 if (!process_sp) 26 return false; 27 #ifdef _WIN32 28 std::optional<FileSpec> outfileSpec = core_options.GetOutputFile(); 29 const auto &outfile = outfileSpec.value(); 30 HANDLE process_handle = ::OpenProcess( 31 PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, process_sp->GetID()); 32 const std::string file_name = outfile.GetPath(); 33 std::wstring wide_name; 34 wide_name.resize(file_name.size() + 1); 35 char *result_ptr = reinterpret_cast<char *>(&wide_name[0]); 36 const llvm::UTF8 *error_ptr = nullptr; 37 if (!llvm::ConvertUTF8toWide(sizeof(wchar_t), file_name, result_ptr, 38 error_ptr)) { 39 error = Status::FromErrorString("cannot convert file name"); 40 return false; 41 } 42 HANDLE file_handle = 43 ::CreateFileW(wide_name.c_str(), GENERIC_WRITE, FILE_SHARE_READ, NULL, 44 CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); 45 const auto result = 46 ::MiniDumpWriteDump(process_handle, process_sp->GetID(), file_handle, 47 MiniDumpWithFullMemoryInfo, NULL, NULL, NULL); 48 ::CloseHandle(file_handle); 49 ::CloseHandle(process_handle); 50 if (!result) { 51 error = Status(::GetLastError(), lldb::eErrorTypeWin32); 52 return false; 53 } 54 return true; 55 #endif 56 return false; 57 } 58 59 } // namesapce lldb_private 60