| /* |
| * Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| #include "jni.h" |
| #include "native_thread.h" |
| #ifdef _WIN32 |
| #include <windows.h> |
| #include <process.h> |
| #include <vdmdbg.h> |
| #include <dbghelp.h> |
| #else /* _WIN32 */ |
| #include <unistd.h> |
| #include <signal.h> |
| #endif /* _WIN32 */ |
| #include "jni_tools.h" |
| |
| /* |
| * Class: vm_share_ProcessUtils |
| * Method: sendSignal |
| * Signature: ()Z |
| */ |
| JNIEXPORT jboolean JNICALL Java_vm_share_ProcessUtils_sendSignal |
| (JNIEnv *env, jclass class, jint signalNum) { |
| #ifdef _WIN32 |
| /* TODO TODO TODO |
| int dw; |
| LPVOID lpMsgBuf; |
| if (!GenerateConsoleCtrlEvent(CTRL_BREAK_EVENT, 0)) { |
| dw = GetLastError(); |
| FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, |
| NULL, |
| dw, |
| MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), |
| (LPTSTR) &lpMsgBuf, |
| 0, |
| NULL |
| ); |
| printf("%s\n", (LPTSTR)lpMsgBuf); |
| LocalFree(lpMsgBuf); |
| return JNI_FALSE; |
| } |
| */ |
| return JNI_TRUE; |
| #else /* _WIN32 */ |
| if (kill(getpid(), signalNum) < 0) |
| return JNI_FALSE; |
| return JNI_TRUE; |
| #endif /* _WIN32 */ |
| } |
| |
| /* |
| * Class: vm_share_ProcessUtils |
| * Method: sendCtrlBreak |
| * Signature: ()Z |
| */ |
| JNIEXPORT jboolean JNICALL Java_vm_share_ProcessUtils_sendCtrlBreak |
| (JNIEnv *env, jclass class) { |
| #ifdef _WIN32 |
| int dw; |
| LPVOID lpMsgBuf; |
| if (!GenerateConsoleCtrlEvent(CTRL_BREAK_EVENT, 0)) { |
| dw = GetLastError(); |
| FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, |
| NULL, |
| dw, |
| MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), |
| (LPTSTR) &lpMsgBuf, |
| 0, |
| NULL |
| ); |
| printf("%s\n", (LPTSTR)lpMsgBuf); |
| LocalFree(lpMsgBuf); |
| return JNI_FALSE; |
| } |
| return JNI_TRUE; |
| #else /* _WIN32 */ |
| if (kill(getpid(), SIGQUIT) < 0) |
| return JNI_FALSE; |
| return JNI_TRUE; |
| #endif /* _WIN32 */ |
| } |
| |
| #ifdef _WIN32 |
| static BOOL (WINAPI *_MiniDumpWriteDump) ( HANDLE, DWORD, HANDLE, MINIDUMP_TYPE, PMINIDUMP_EXCEPTION_INFORMATION, |
| PMINIDUMP_USER_STREAM_INFORMATION, PMINIDUMP_CALLBACK_INFORMATION); |
| void reportLastError(const char *msg) { |
| long errcode = GetLastError(); |
| if (errcode != 0) { |
| DWORD len = 0; |
| char *buf; |
| size_t n = (size_t)FormatMessage( |
| FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS|FORMAT_MESSAGE_ALLOCATE_BUFFER, |
| NULL, |
| errcode, |
| 0, |
| (LPSTR) &buf, |
| (DWORD)len, |
| NULL); |
| if (n > 3) { |
| /* Drop final '.', CR, LF */ |
| if (buf[n - 1] == '\n') n--; |
| if (buf[n - 1] == '\r') n--; |
| if (buf[n - 1] == '.') n--; |
| buf[n] = '\0'; |
| } |
| printf("%s: %s\n", msg, buf); |
| LocalFree(buf); |
| } |
| } |
| |
| #endif /* _WIN32 */ |
| |
| jboolean doDumpCore() { |
| #ifdef _WIN32 |
| char path[MAX_PATH]; |
| DWORD size; |
| DWORD pathLen = (DWORD) sizeof(path); |
| HINSTANCE dbghelp; |
| MINIDUMP_EXCEPTION_INFORMATION* pmei; |
| |
| HANDLE hProcess = GetCurrentProcess(); |
| DWORD processId = GetCurrentProcessId(); |
| HANDLE dumpFile; |
| MINIDUMP_TYPE dumpType; |
| static const char* cwd; |
| static const char* name = "DBGHELP.DLL"; |
| |
| printf("# TEST: creating Windows minidump...\n"); |
| if ((size = GetSystemDirectory(path, pathLen)) > 0) { |
| strcat(path, "\\"); |
| strcat(path, name); |
| dbghelp = LoadLibrary(path); |
| if (dbghelp == NULL) |
| reportLastError("Load DBGHELP.DLL from system directory"); |
| } else { |
| printf("GetSystemDirectory returned 0\n"); |
| } |
| |
| // try Windows directory |
| if (dbghelp == NULL && ((size = GetWindowsDirectory(path, pathLen)) > 6)) { |
| strcat(path, "\\"); |
| strcat(path, name); |
| dbghelp = LoadLibrary(path); |
| if (dbghelp == NULL) { |
| reportLastError("Load DBGHELP.DLL from Windows directory"); |
| } |
| } |
| if (dbghelp == NULL) { |
| printf("Failed to load DBGHELP.DLL\n"); |
| return JNI_FALSE; |
| } |
| |
| _MiniDumpWriteDump = ( |
| BOOL(WINAPI *)( HANDLE, DWORD, HANDLE, MINIDUMP_TYPE, PMINIDUMP_EXCEPTION_INFORMATION, |
| PMINIDUMP_USER_STREAM_INFORMATION, PMINIDUMP_CALLBACK_INFORMATION)) GetProcAddress(dbghelp, "MiniDumpWriteDump"); |
| |
| if (_MiniDumpWriteDump == NULL) { |
| printf("Failed to find MiniDumpWriteDump() in module dbghelp.dll"); |
| return JNI_FALSE; |
| } |
| dumpType = (MINIDUMP_TYPE)(MiniDumpWithFullMemory | MiniDumpWithHandleData); |
| |
| // Older versions of dbghelp.h doesn't contain all the dumptypes we want, dbghelp.h with |
| // API_VERSION_NUMBER 11 or higher contains the ones we want though |
| #if API_VERSION_NUMBER >= 11 |
| dumpType = (MINIDUMP_TYPE)(dumpType | MiniDumpWithFullMemoryInfo | MiniDumpWithThreadInfo | |
| MiniDumpWithUnloadedModules); |
| #endif |
| |
| dumpFile = CreateFile("core.mdmp", GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); |
| |
| if (dumpFile == INVALID_HANDLE_VALUE) { |
| reportLastError("Failed to create file for dumping"); |
| return JNI_FALSE; |
| } |
| pmei = NULL; |
| |
| |
| // Older versions of dbghelp.dll (the one shipped with Win2003 for example) may not support all |
| // the dump types we really want. If first call fails, lets fall back to just use MiniDumpWithFullMemory then. |
| if (_MiniDumpWriteDump(hProcess, processId, dumpFile, dumpType, pmei, NULL, NULL) == FALSE && |
| _MiniDumpWriteDump(hProcess, processId, dumpFile, (MINIDUMP_TYPE)MiniDumpWithFullMemory, pmei, NULL, NULL) == FALSE) { |
| reportLastError("Call to MiniDumpWriteDump() failed"); |
| return JNI_FALSE; |
| } |
| |
| CloseHandle(dumpFile); |
| printf("# TEST: minidump created\n"); |
| // Emulate Unix behaviour - exit process. |
| ExitProcess(137); |
| |
| return JNI_TRUE; |
| #else /* _WIN32 */ |
| if (kill(getpid(), SIGSEGV) < 0) |
| return JNI_FALSE; |
| return JNI_TRUE; |
| #endif /* _WIN32 */ |
| |
| } |
| |
| /* |
| * Class: vm_share_ProcessUtils |
| * Method: dumpCore |
| * Signature: ()Z |
| */ |
| JNIEXPORT jboolean JNICALL Java_vm_share_ProcessUtils_dumpCore |
| (JNIEnv *env, jclass class) |
| { |
| return doDumpCore(); |
| } |
| |
| /* |
| * Class: vm_share_ProcessUtils |
| * Method: getPid |
| * Signature: ()I |
| */ |
| JNIEXPORT jint JNICALL Java_vm_share_ProcessUtils_getPid |
| (JNIEnv *env, jclass class) { |
| #ifdef _WIN32 |
| return _getpid(); |
| #else /* _WIN32 */ |
| return getpid(); |
| #endif /* _WIN32 */ |
| } |
| |
| |
| /* |
| * Class: vm_share_ProcessUtils |
| * Method: getPid |
| * Signature: ()I |
| */ |
| JNIEXPORT jint JNICALL Java_vm_share_ProcessUtils_getWindowsPid |
| (JNIEnv *env, jclass class, jlong handle) { |
| #ifdef _WIN32 |
| return GetProcessId((HANDLE) handle); |
| #else /* _WIN32 */ |
| return -1; |
| #endif /* _WIN32 */ |
| } |
