986 static BOOL (WINAPI *_MiniDumpWriteDump)(HANDLE, DWORD, HANDLE, MINIDUMP_TYPE,
987 PMINIDUMP_EXCEPTION_INFORMATION,
988 PMINIDUMP_USER_STREAM_INFORMATION,
989 PMINIDUMP_CALLBACK_INFORMATION);
990
991 void os::check_or_create_dump(void* exceptionRecord, void* contextRecord, char* buffer, size_t bufferSize) {
992 HINSTANCE dbghelp;
993 EXCEPTION_POINTERS ep;
994 MINIDUMP_EXCEPTION_INFORMATION mei;
995 MINIDUMP_EXCEPTION_INFORMATION* pmei;
996
997 HANDLE hProcess = GetCurrentProcess();
998 DWORD processId = GetCurrentProcessId();
999 HANDLE dumpFile;
1000 MINIDUMP_TYPE dumpType;
1001 static const char* cwd;
1002
1003 // Default is to always create dump for debug builds, on product builds only dump on server versions of Windows.
1004 #ifndef ASSERT
1005 // If running on a client version of Windows and user has not explicitly enabled dumping
1006 if (!os::win32::is_windows_server() && !CreateMinidumpOnCrash) {
1007 VMError::report_coredump_status("Minidumps are not enabled by default on client versions of Windows", false);
1008 return;
1009 // If running on a server version of Windows and user has explictly disabled dumping
1010 } else if (os::win32::is_windows_server() && !FLAG_IS_DEFAULT(CreateMinidumpOnCrash) && !CreateMinidumpOnCrash) {
1011 VMError::report_coredump_status("Minidump has been disabled from the command line", false);
1012 return;
1013 }
1014 #else
1015 if (!FLAG_IS_DEFAULT(CreateMinidumpOnCrash) && !CreateMinidumpOnCrash) {
1016 VMError::report_coredump_status("Minidump has been disabled from the command line", false);
1017 return;
1018 }
1019 #endif
1020
1021 dbghelp = os::win32::load_Windows_dll("DBGHELP.DLL", NULL, 0);
1022
1023 if (dbghelp == NULL) {
1024 VMError::report_coredump_status("Failed to load dbghelp.dll", false);
1025 return;
1026 }
1027
1028 _MiniDumpWriteDump =
1029 CAST_TO_FN_PTR(BOOL(WINAPI *)(HANDLE, DWORD, HANDLE, MINIDUMP_TYPE,
1030 PMINIDUMP_EXCEPTION_INFORMATION,
1031 PMINIDUMP_USER_STREAM_INFORMATION,
1032 PMINIDUMP_CALLBACK_INFORMATION),
1033 GetProcAddress(dbghelp,
1034 "MiniDumpWriteDump"));
1035
1036 if (_MiniDumpWriteDump == NULL) {
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986 static BOOL (WINAPI *_MiniDumpWriteDump)(HANDLE, DWORD, HANDLE, MINIDUMP_TYPE,
987 PMINIDUMP_EXCEPTION_INFORMATION,
988 PMINIDUMP_USER_STREAM_INFORMATION,
989 PMINIDUMP_CALLBACK_INFORMATION);
990
991 void os::check_or_create_dump(void* exceptionRecord, void* contextRecord, char* buffer, size_t bufferSize) {
992 HINSTANCE dbghelp;
993 EXCEPTION_POINTERS ep;
994 MINIDUMP_EXCEPTION_INFORMATION mei;
995 MINIDUMP_EXCEPTION_INFORMATION* pmei;
996
997 HANDLE hProcess = GetCurrentProcess();
998 DWORD processId = GetCurrentProcessId();
999 HANDLE dumpFile;
1000 MINIDUMP_TYPE dumpType;
1001 static const char* cwd;
1002
1003 // Default is to always create dump for debug builds, on product builds only dump on server versions of Windows.
1004 #ifndef ASSERT
1005 // If running on a client version of Windows and user has not explicitly enabled dumping
1006 if (!os::win32::is_windows_server() && !CreateCoredumpOnCrash) {
1007 VMError::report_coredump_status("Coredumps are not enabled by default on client versions of Windows", false);
1008 return;
1009 // If running on a server version of Windows and user has explictly disabled dumping
1010 } else if (os::win32::is_windows_server() && !FLAG_IS_DEFAULT(CreateCoredumpOnCrash) && !CreateCoredumpOnCrash) {
1011 VMError::report_coredump_status("Coredump has been disabled from the command line", false);
1012 return;
1013 }
1014 #else
1015 if (!FLAG_IS_DEFAULT(CreateCoredumpOnCrash) && !CreateCoredumpOnCrash) {
1016 VMError::report_coredump_status("Coredump has been disabled from the command line", false);
1017 return;
1018 }
1019 #endif
1020
1021 dbghelp = os::win32::load_Windows_dll("DBGHELP.DLL", NULL, 0);
1022
1023 if (dbghelp == NULL) {
1024 VMError::report_coredump_status("Failed to load dbghelp.dll", false);
1025 return;
1026 }
1027
1028 _MiniDumpWriteDump =
1029 CAST_TO_FN_PTR(BOOL(WINAPI *)(HANDLE, DWORD, HANDLE, MINIDUMP_TYPE,
1030 PMINIDUMP_EXCEPTION_INFORMATION,
1031 PMINIDUMP_USER_STREAM_INFORMATION,
1032 PMINIDUMP_CALLBACK_INFORMATION),
1033 GetProcAddress(dbghelp,
1034 "MiniDumpWriteDump"));
1035
1036 if (_MiniDumpWriteDump == NULL) {
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