Mercurial > hg > truffle
annotate agent/src/os/win32/windbg/sawindbg.cpp @ 17467:55fb97c4c58d hs25-b65
8029233: Update copyright year to match last edit in jdk8 hotspot repository for 2013
Summary: Copyright year updated for files modified during 2013
Reviewed-by: twisti, iveresov
| author | mikael |
|---|---|
| date | Tue, 24 Dec 2013 11:48:39 -0800 |
| parents | 5ed317b25e23 |
| children | 4ca6dc0799b6 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
17467
55fb97c4c58d
8029233: Update copyright year to match last edit in jdk8 hotspot repository for 2013
mikael
parents:
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changeset
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2 * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
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20 * or visit www.oracle.com if you need additional information or have any |
|
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 // this is source code windbg based SA debugger agent to debug | |
| 26 // Dr. Watson dump files and process snapshots. | |
| 27 | |
| 28 #include "sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal.h" | |
| 29 | |
| 7994 | 30 #ifdef _M_IX86 |
| 0 | 31 #include "sun_jvm_hotspot_debugger_x86_X86ThreadContext.h" |
| 32 #define NPRGREG sun_jvm_hotspot_debugger_x86_X86ThreadContext_NPRGREG | |
| 33 #elif _M_AMD64 | |
| 34 #include "sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext.h" | |
| 35 #define NPRGREG sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext_NPRGREG | |
| 36 #else | |
| 37 #error "SA windbg back-end is not supported for your cpu!" | |
| 38 #endif | |
| 39 | |
| 40 #include <limits.h> | |
| 41 #include <windows.h> | |
| 42 | |
| 43 #ifndef STDMETHODV | |
| 44 #define STDMETHODV(method) virtual HRESULT STDMETHODVCALLTYPE method | |
| 45 #endif | |
| 46 | |
| 47 #define DEBUG_NO_IMPLEMENTATION | |
| 48 #include <dbgeng.h> | |
| 49 #include <dbghelp.h> | |
| 50 | |
| 51 // simple template to manage array delete across early (error) returns | |
| 52 | |
| 53 template <class T> | |
| 54 class AutoArrayPtr { | |
| 55 T* m_ptr; | |
| 56 public: | |
| 57 AutoArrayPtr(T* ptr) : m_ptr(ptr) { | |
| 58 } | |
| 59 | |
| 60 ~AutoArrayPtr() { | |
| 61 delete [] m_ptr; | |
| 62 } | |
| 63 | |
| 64 T* asPtr() { | |
| 65 return m_ptr; | |
| 66 } | |
| 67 }; | |
| 68 | |
| 69 class AutoJavaString { | |
| 70 JNIEnv* m_env; | |
| 71 jstring m_str; | |
| 72 const char* m_buf; | |
| 73 | |
| 74 public: | |
| 75 AutoJavaString(JNIEnv* env, jstring str, const char* buf) | |
| 76 : m_env(env), m_str(str), m_buf(buf) { | |
| 77 } | |
| 78 | |
| 79 ~AutoJavaString() { | |
| 80 m_env->ReleaseStringUTFChars(m_str, m_buf); | |
| 81 } | |
| 82 | |
| 83 operator const char* () { | |
| 84 return m_buf; | |
| 85 } | |
| 86 }; | |
| 87 | |
| 88 // field and method IDs we want here | |
| 89 | |
| 90 static jfieldID imagePath_ID = 0; | |
| 91 static jfieldID symbolPath_ID = 0; | |
| 92 static jfieldID ptrIDebugClient_ID = 0; | |
| 93 static jfieldID ptrIDebugControl_ID = 0; | |
| 94 static jfieldID ptrIDebugDataSpaces_ID = 0; | |
| 95 static jfieldID ptrIDebugOutputCallbacks_ID = 0; | |
| 96 static jfieldID ptrIDebugAdvanced_ID = 0; | |
| 97 static jfieldID ptrIDebugSymbols_ID = 0; | |
| 98 static jfieldID ptrIDebugSystemObjects_ID = 0; | |
| 99 | |
| 100 static jmethodID addLoadObject_ID = 0; | |
| 101 static jmethodID addThread_ID = 0; | |
| 102 static jmethodID createClosestSymbol_ID = 0; | |
| 103 static jmethodID setThreadIntegerRegisterSet_ID = 0; | |
| 104 | |
| 105 #define CHECK_EXCEPTION_(value) if(env->ExceptionOccurred()) { return value; } | |
| 106 #define CHECK_EXCEPTION if(env->ExceptionOccurred()) { return;} | |
| 107 | |
| 108 #define THROW_NEW_DEBUGGER_EXCEPTION_(str, value) { \ | |
| 109 throwNewDebuggerException(env, str); return value; } | |
| 110 | |
| 111 #define THROW_NEW_DEBUGGER_EXCEPTION(str) { throwNewDebuggerException(env, str); \ | |
| 112 return;} | |
| 113 | |
| 114 static void throwNewDebuggerException(JNIEnv* env, const char* errMsg) { | |
| 115 env->ThrowNew(env->FindClass("sun/jvm/hotspot/debugger/DebuggerException"), errMsg); | |
| 116 } | |
| 117 | |
| 118 /* | |
| 119 * Class: sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal | |
| 120 * Method: initIDs | |
| 121 * Signature: ()V | |
| 122 */ | |
| 123 JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal_initIDs | |
| 124 (JNIEnv *env, jclass clazz) { | |
| 125 imagePath_ID = env->GetStaticFieldID(clazz, "imagePath", "Ljava/lang/String;"); | |
| 126 CHECK_EXCEPTION; | |
| 127 | |
| 128 symbolPath_ID = env->GetStaticFieldID(clazz, "symbolPath", "Ljava/lang/String;"); | |
| 129 CHECK_EXCEPTION; | |
| 130 | |
| 131 ptrIDebugClient_ID = env->GetFieldID(clazz, "ptrIDebugClient", "J"); | |
| 132 CHECK_EXCEPTION; | |
| 133 | |
| 134 ptrIDebugControl_ID = env->GetFieldID(clazz, "ptrIDebugControl", "J"); | |
| 135 CHECK_EXCEPTION; | |
| 136 | |
| 137 ptrIDebugDataSpaces_ID = env->GetFieldID(clazz, "ptrIDebugDataSpaces", "J"); | |
| 138 CHECK_EXCEPTION; | |
| 139 | |
| 140 ptrIDebugOutputCallbacks_ID = env->GetFieldID(clazz, | |
| 141 "ptrIDebugOutputCallbacks", "J"); | |
| 142 CHECK_EXCEPTION; | |
| 143 | |
| 144 ptrIDebugAdvanced_ID = env->GetFieldID(clazz, "ptrIDebugAdvanced", "J"); | |
| 145 CHECK_EXCEPTION; | |
| 146 | |
| 147 ptrIDebugSymbols_ID = env->GetFieldID(clazz, | |
| 148 "ptrIDebugSymbols", "J"); | |
| 149 CHECK_EXCEPTION; | |
| 150 | |
| 151 ptrIDebugSystemObjects_ID = env->GetFieldID(clazz, | |
| 152 "ptrIDebugSystemObjects", "J"); | |
| 153 CHECK_EXCEPTION; | |
| 154 | |
| 155 addLoadObject_ID = env->GetMethodID(clazz, "addLoadObject", | |
| 156 "(Ljava/lang/String;JJ)V"); | |
| 157 CHECK_EXCEPTION; | |
| 158 | |
| 159 addThread_ID = env->GetMethodID(clazz, "addThread", "(J)V"); | |
| 160 CHECK_EXCEPTION; | |
| 161 | |
| 162 createClosestSymbol_ID = env->GetMethodID(clazz, "createClosestSymbol", | |
| 163 "(Ljava/lang/String;J)Lsun/jvm/hotspot/debugger/cdbg/ClosestSymbol;"); | |
| 164 CHECK_EXCEPTION; | |
| 165 | |
| 166 setThreadIntegerRegisterSet_ID = env->GetMethodID(clazz, | |
| 167 "setThreadIntegerRegisterSet", "(J[J)V"); | |
| 168 CHECK_EXCEPTION; | |
| 169 | |
| 170 } | |
| 171 | |
| 172 // class for IDebugOutputCallbacks | |
| 173 | |
| 174 class SAOutputCallbacks : public IDebugOutputCallbacks { | |
| 175 LONG m_refCount; | |
| 176 char* m_msgBuffer; | |
| 177 | |
| 178 public: | |
| 179 SAOutputCallbacks() : m_refCount(0), m_msgBuffer(0) { | |
| 180 } | |
| 181 | |
| 182 ~SAOutputCallbacks() { | |
| 183 clearBuffer(); | |
| 184 } | |
| 185 | |
| 186 const char* getBuffer() const { | |
| 187 return m_msgBuffer; | |
| 188 } | |
| 189 | |
| 190 void clearBuffer() { | |
| 191 if (m_msgBuffer) { | |
| 192 free(m_msgBuffer); | |
| 193 m_msgBuffer = 0; | |
| 194 } | |
| 195 } | |
| 196 | |
| 197 STDMETHOD_(ULONG, AddRef)(THIS); | |
| 198 STDMETHOD_(ULONG, Release)(THIS); | |
| 199 STDMETHOD(QueryInterface)(THIS_ | |
| 200 IN REFIID interfaceId, | |
| 201 OUT PVOID* ppInterface); | |
| 202 STDMETHOD(Output)(THIS_ | |
| 203 IN ULONG mask, | |
| 204 IN PCSTR msg); | |
| 205 }; | |
| 206 | |
| 207 STDMETHODIMP_(ULONG) SAOutputCallbacks::AddRef(THIS) { | |
| 208 InterlockedIncrement(&m_refCount); | |
| 209 return m_refCount; | |
| 210 } | |
| 211 | |
| 212 STDMETHODIMP_(ULONG) SAOutputCallbacks::Release(THIS) { | |
| 213 LONG retVal; | |
| 214 InterlockedDecrement(&m_refCount); | |
| 215 retVal = m_refCount; | |
| 216 if (retVal == 0) { | |
| 217 delete this; | |
| 218 } | |
| 219 return retVal; | |
| 220 } | |
| 221 | |
| 222 STDMETHODIMP SAOutputCallbacks::QueryInterface(THIS_ | |
| 223 IN REFIID interfaceId, | |
| 224 OUT PVOID* ppInterface) { | |
| 225 *ppInterface = 0; | |
| 226 HRESULT res = E_NOINTERFACE; | |
| 227 if (TRUE == IsEqualIID(interfaceId, __uuidof(IUnknown)) || | |
| 228 TRUE == IsEqualIID(interfaceId, __uuidof(IDebugOutputCallbacks))) { | |
| 229 *ppInterface = (IDebugOutputCallbacks*) this; | |
| 230 AddRef(); | |
| 231 res = S_OK; | |
| 232 } | |
| 233 return res; | |
| 234 } | |
| 235 | |
| 236 STDMETHODIMP SAOutputCallbacks::Output(THIS_ | |
| 237 IN ULONG mask, | |
| 238 IN PCSTR msg) { | |
| 239 int len = (int) (strlen(msg) + 1); | |
| 240 if (m_msgBuffer == 0) { | |
| 241 m_msgBuffer = (char*) malloc(len); | |
| 242 if (m_msgBuffer == 0) { | |
| 243 fprintf(stderr, "out of memory debugger output!\n"); | |
| 244 return S_FALSE; | |
| 245 } | |
| 246 strcpy(m_msgBuffer, msg); | |
| 247 } else { | |
| 248 m_msgBuffer = (char*) realloc(m_msgBuffer, len + strlen(m_msgBuffer)); | |
| 249 if (m_msgBuffer == 0) { | |
| 250 fprintf(stderr, "out of memory debugger output!\n"); | |
| 251 return S_FALSE; | |
| 252 } | |
| 253 strcat(m_msgBuffer, msg); | |
| 254 } | |
| 255 return S_OK; | |
| 256 } | |
| 257 | |
| 258 static bool getWindbgInterfaces(JNIEnv* env, jobject obj) { | |
| 259 // get windbg interfaces .. | |
| 260 | |
| 261 IDebugClient* ptrIDebugClient = 0; | |
| 262 if (DebugCreate(__uuidof(IDebugClient), (PVOID*) &ptrIDebugClient) != S_OK) { | |
| 263 THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: not able to create IDebugClient object!", false); | |
| 264 } | |
| 265 env->SetLongField(obj, ptrIDebugClient_ID, (jlong) ptrIDebugClient); | |
| 266 | |
| 267 IDebugControl* ptrIDebugControl = 0; | |
| 268 if (ptrIDebugClient->QueryInterface(__uuidof(IDebugControl), (PVOID*) &ptrIDebugControl) | |
| 269 != S_OK) { | |
| 270 THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: not able to get IDebugControl", false); | |
| 271 } | |
| 272 env->SetLongField(obj, ptrIDebugControl_ID, (jlong) ptrIDebugControl); | |
| 273 | |
| 274 IDebugDataSpaces* ptrIDebugDataSpaces = 0; | |
| 275 if (ptrIDebugClient->QueryInterface(__uuidof(IDebugDataSpaces), (PVOID*) &ptrIDebugDataSpaces) | |
| 276 != S_OK) { | |
| 277 THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: not able to get IDebugDataSpaces object!", false); | |
| 278 } | |
| 279 env->SetLongField(obj, ptrIDebugDataSpaces_ID, (jlong) ptrIDebugDataSpaces); | |
| 280 | |
| 281 SAOutputCallbacks* ptrIDebugOutputCallbacks = new SAOutputCallbacks(); | |
| 282 ptrIDebugOutputCallbacks->AddRef(); | |
| 283 env->SetLongField(obj, ptrIDebugOutputCallbacks_ID, (jlong) ptrIDebugOutputCallbacks); | |
| 284 CHECK_EXCEPTION_(false); | |
| 285 | |
| 286 IDebugAdvanced* ptrIDebugAdvanced = 0; | |
| 287 if (ptrIDebugClient->QueryInterface(__uuidof(IDebugAdvanced), (PVOID*) &ptrIDebugAdvanced) | |
| 288 != S_OK) { | |
| 289 THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: not able to get IDebugAdvanced object!", false); | |
| 290 } | |
| 291 env->SetLongField(obj, ptrIDebugAdvanced_ID, (jlong) ptrIDebugAdvanced); | |
| 292 | |
| 293 IDebugSymbols* ptrIDebugSymbols = 0; | |
| 294 if (ptrIDebugClient->QueryInterface(__uuidof(IDebugSymbols), (PVOID*) &ptrIDebugSymbols) | |
| 295 != S_OK) { | |
| 296 THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: not able to get IDebugSymbols object!", false); | |
| 297 } | |
| 298 env->SetLongField(obj, ptrIDebugSymbols_ID, (jlong) ptrIDebugSymbols); | |
| 299 | |
| 300 IDebugSystemObjects* ptrIDebugSystemObjects = 0; | |
| 301 if (ptrIDebugClient->QueryInterface(__uuidof(IDebugSystemObjects), (PVOID*) &ptrIDebugSystemObjects) | |
| 302 != S_OK) { | |
| 303 THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: not able to get IDebugSystemObjects object!", false); | |
| 304 } | |
| 305 env->SetLongField(obj, ptrIDebugSystemObjects_ID, (jlong) ptrIDebugSystemObjects); | |
| 306 | |
| 307 return true; | |
| 308 } | |
| 309 | |
| 310 static bool setImageAndSymbolPath(JNIEnv* env, jobject obj) { | |
| 311 jboolean isCopy; | |
| 312 jclass clazz = env->GetObjectClass(obj); | |
| 313 jstring path; | |
| 314 const char* buf; | |
| 315 | |
| 316 path = (jstring) env->GetStaticObjectField(clazz, imagePath_ID); | |
| 317 buf = env->GetStringUTFChars(path, &isCopy); | |
| 318 CHECK_EXCEPTION_(false); | |
| 319 AutoJavaString imagePath(env, path, buf); | |
| 320 | |
| 321 path = (jstring) env->GetStaticObjectField(clazz, symbolPath_ID); | |
| 322 buf = env->GetStringUTFChars(path, &isCopy); | |
| 323 CHECK_EXCEPTION_(false); | |
| 324 AutoJavaString symbolPath(env, path, buf); | |
| 325 | |
| 326 IDebugSymbols* ptrIDebugSymbols = (IDebugSymbols*) env->GetLongField(obj, | |
| 327 ptrIDebugSymbols_ID); | |
| 328 CHECK_EXCEPTION_(false); | |
| 329 | |
| 330 ptrIDebugSymbols->SetImagePath(imagePath); | |
| 331 ptrIDebugSymbols->SetSymbolPath(symbolPath); | |
| 332 return true; | |
| 333 } | |
| 334 | |
| 335 static bool openDumpFile(JNIEnv* env, jobject obj, jstring coreFileName) { | |
| 336 // open the dump file | |
| 337 jboolean isCopy; | |
| 338 const char* buf = env->GetStringUTFChars(coreFileName, &isCopy); | |
| 339 CHECK_EXCEPTION_(false); | |
| 340 AutoJavaString coreFile(env, coreFileName, buf); | |
| 341 if (setImageAndSymbolPath(env, obj) == false) { | |
| 342 return false; | |
| 343 } | |
| 344 | |
| 345 IDebugClient* ptrIDebugClient = (IDebugClient*) env->GetLongField(obj, | |
| 346 ptrIDebugClient_ID); | |
| 347 CHECK_EXCEPTION_(false); | |
| 348 if (ptrIDebugClient->OpenDumpFile(coreFile) != S_OK) { | |
| 349 THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: OpenDumpFile failed!", false); | |
| 350 } | |
| 351 | |
| 352 IDebugControl* ptrIDebugControl = (IDebugControl*) env->GetLongField(obj, | |
| 353 ptrIDebugControl_ID); | |
| 354 CHECK_EXCEPTION_(false); | |
| 355 if (ptrIDebugControl->WaitForEvent(DEBUG_WAIT_DEFAULT, INFINITE) != S_OK) { | |
| 356 THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: WaitForEvent failed!", false); | |
| 357 } | |
| 358 | |
| 359 return true; | |
| 360 } | |
| 361 | |
| 362 | |
| 363 static bool attachToProcess(JNIEnv* env, jobject obj, jint pid) { | |
| 364 if (setImageAndSymbolPath(env, obj) == false) { | |
| 365 return false; | |
| 366 } | |
| 367 IDebugClient* ptrIDebugClient = (IDebugClient*) env->GetLongField(obj, | |
| 368 ptrIDebugClient_ID); | |
| 369 CHECK_EXCEPTION_(false); | |
| 370 | |
| 371 /*********************************************************************************** | |
| 372 | |
| 373 We are attaching to a process in 'read-only' mode. i.e., we do not want to | |
| 374 put breakpoints, suspend/resume threads etc. For read-only JDI and HSDB kind of | |
| 8103 | 375 usage this should suffice. |
| 0 | 376 |
| 377 Please refer to DEBUG_ATTACH_NONINVASIVE mode source comments from dbgeng.h. | |
| 378 In this mode, debug engine does not call DebugActiveProrcess. i.e., we are not | |
| 379 actually debugging at all. We can safely 'detach' from the process anytime | |
| 380 we want and debuggee process is left as is on all Windows variants. | |
| 381 | |
| 382 This also makes JDI-on-SA installation/usage simpler because with this we would | |
| 383 not need a tool like ServiceInstaller from http://www.kcmultimedia.com/smaster. | |
| 384 | |
| 385 ***********************************************************************************/ | |
| 386 | |
| 387 | |
| 388 if (ptrIDebugClient->AttachProcess(0, pid, DEBUG_ATTACH_NONINVASIVE) != S_OK) { | |
| 389 THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: AttachProcess failed!", false); | |
| 390 } | |
| 391 | |
| 392 IDebugControl* ptrIDebugControl = (IDebugControl*) env->GetLongField(obj, | |
| 393 ptrIDebugControl_ID); | |
| 394 CHECK_EXCEPTION_(false); | |
| 395 if (ptrIDebugControl->WaitForEvent(DEBUG_WAIT_DEFAULT, INFINITE) != S_OK) { | |
| 396 THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: WaitForEvent failed!", false); | |
| 397 } | |
| 398 | |
| 399 return true; | |
| 400 } | |
| 401 | |
| 402 | |
| 403 static bool addLoadObjects(JNIEnv* env, jobject obj) { | |
| 404 IDebugSymbols* ptrIDebugSymbols = (IDebugSymbols*) env->GetLongField(obj, | |
| 405 ptrIDebugSymbols_ID); | |
| 406 CHECK_EXCEPTION_(false); | |
| 407 ULONG loaded = 0, unloaded = 0; | |
| 408 if (ptrIDebugSymbols->GetNumberModules(&loaded, &unloaded) != S_OK) { | |
| 409 THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: GetNumberModules failed!", false); | |
| 410 } | |
| 411 | |
| 412 AutoArrayPtr<DEBUG_MODULE_PARAMETERS> params(new DEBUG_MODULE_PARAMETERS[loaded]); | |
| 413 | |
| 414 if (params.asPtr() == 0) { | |
| 415 THROW_NEW_DEBUGGER_EXCEPTION_("out of memory to allocate debug module params!", false); | |
| 416 } | |
| 417 | |
| 418 if (ptrIDebugSymbols->GetModuleParameters(loaded, 0, NULL, params.asPtr()) != S_OK) { | |
| 419 THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: GetModuleParameters failed!", false); | |
| 420 } | |
| 421 | |
| 422 for (int u = 0; u < (int)loaded; u++) { | |
| 423 TCHAR imageName[MAX_PATH]; | |
| 424 if (ptrIDebugSymbols->GetModuleNames(DEBUG_ANY_ID, params.asPtr()[u].Base, | |
| 425 imageName, MAX_PATH, NULL, NULL, | |
| 426 0, NULL, NULL, 0, NULL) != S_OK) { | |
| 427 THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: GetModuleNames failed!", false); | |
| 428 } | |
| 429 | |
| 430 jstring strName = env->NewStringUTF(imageName); | |
| 431 CHECK_EXCEPTION_(false); | |
| 432 env->CallVoidMethod(obj, addLoadObject_ID, strName, (jlong) params.asPtr()[u].Size, | |
| 433 (jlong) params.asPtr()[u].Base); | |
| 434 CHECK_EXCEPTION_(false); | |
| 435 } | |
| 436 | |
| 437 return true; | |
| 438 } | |
| 439 | |
| 440 static bool addThreads(JNIEnv* env, jobject obj) { | |
| 441 IDebugSystemObjects* ptrIDebugSystemObjects = (IDebugSystemObjects*) env->GetLongField(obj, | |
| 442 ptrIDebugSystemObjects_ID); | |
| 443 CHECK_EXCEPTION_(false); | |
| 444 | |
| 445 ULONG numThreads = 0; | |
| 446 if (ptrIDebugSystemObjects->GetNumberThreads(&numThreads) != S_OK) { | |
| 447 THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: GetNumberThreads failed!", false); | |
| 448 } | |
| 449 | |
| 450 AutoArrayPtr<ULONG> ptrSysThreadIds = new ULONG[numThreads]; | |
| 451 | |
| 452 if (ptrSysThreadIds.asPtr() == 0) { | |
| 453 THROW_NEW_DEBUGGER_EXCEPTION_("out of memory to allocate thread ids!", false); | |
| 454 } | |
| 455 | |
| 456 AutoArrayPtr<ULONG> ptrThreadIds = new ULONG[numThreads]; | |
| 457 | |
| 458 if (ptrThreadIds.asPtr() == 0) { | |
| 459 THROW_NEW_DEBUGGER_EXCEPTION_("out of memory to allocate thread ids!", false); | |
| 460 } | |
| 461 | |
| 462 if (ptrIDebugSystemObjects->GetThreadIdsByIndex(0, numThreads, | |
| 463 ptrThreadIds.asPtr(), ptrSysThreadIds.asPtr()) != S_OK) { | |
| 464 THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: GetThreadIdsByIndex failed!", false); | |
| 465 } | |
| 466 | |
| 467 | |
| 468 IDebugAdvanced* ptrIDebugAdvanced = (IDebugAdvanced*) env->GetLongField(obj, | |
| 469 ptrIDebugAdvanced_ID); | |
| 470 CHECK_EXCEPTION_(false); | |
| 471 | |
| 472 // for each thread, get register context and save it. | |
| 473 for (ULONG t = 0; t < numThreads; t++) { | |
| 474 if (ptrIDebugSystemObjects->SetCurrentThreadId(ptrThreadIds.asPtr()[t]) != S_OK) { | |
| 475 THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: SetCurrentThread failed!", false); | |
| 476 } | |
| 477 | |
| 478 jlongArray regs = env->NewLongArray(NPRGREG); | |
| 479 CHECK_EXCEPTION_(false); | |
| 480 | |
| 481 jboolean isCopy = JNI_FALSE; | |
| 482 jlong* ptrRegs = env->GetLongArrayElements(regs, &isCopy); | |
| 483 CHECK_EXCEPTION_(false); | |
| 484 | |
| 485 // copy register values from the CONTEXT struct | |
| 486 CONTEXT context; | |
| 487 memset(&context, 0, sizeof(CONTEXT)); | |
| 488 | |
| 489 #undef REG_INDEX | |
| 7994 | 490 #ifdef _M_IX86 |
| 0 | 491 #define REG_INDEX(x) sun_jvm_hotspot_debugger_x86_X86ThreadContext_##x |
| 492 | |
| 493 context.ContextFlags = CONTEXT_FULL | CONTEXT_DEBUG_REGISTERS; | |
| 494 ptrIDebugAdvanced->GetThreadContext(&context, sizeof(CONTEXT)); | |
| 495 | |
| 496 ptrRegs[REG_INDEX(GS)] = context.SegGs; | |
| 497 ptrRegs[REG_INDEX(FS)] = context.SegFs; | |
| 498 ptrRegs[REG_INDEX(ES)] = context.SegEs; | |
| 499 ptrRegs[REG_INDEX(DS)] = context.SegDs; | |
| 500 | |
| 501 ptrRegs[REG_INDEX(EDI)] = context.Edi; | |
| 502 ptrRegs[REG_INDEX(ESI)] = context.Esi; | |
| 503 ptrRegs[REG_INDEX(EBX)] = context.Ebx; | |
| 504 ptrRegs[REG_INDEX(EDX)] = context.Edx; | |
| 505 ptrRegs[REG_INDEX(ECX)] = context.Ecx; | |
| 506 ptrRegs[REG_INDEX(EAX)] = context.Eax; | |
| 507 | |
| 508 ptrRegs[REG_INDEX(FP)] = context.Ebp; | |
| 509 ptrRegs[REG_INDEX(PC)] = context.Eip; | |
| 510 ptrRegs[REG_INDEX(CS)] = context.SegCs; | |
| 511 ptrRegs[REG_INDEX(EFL)] = context.EFlags; | |
| 512 ptrRegs[REG_INDEX(SP)] = context.Esp; | |
| 513 ptrRegs[REG_INDEX(SS)] = context.SegSs; | |
| 514 | |
| 515 ptrRegs[REG_INDEX(DR0)] = context.Dr0; | |
| 516 ptrRegs[REG_INDEX(DR1)] = context.Dr1; | |
| 517 ptrRegs[REG_INDEX(DR2)] = context.Dr2; | |
| 518 ptrRegs[REG_INDEX(DR3)] = context.Dr3; | |
| 519 ptrRegs[REG_INDEX(DR6)] = context.Dr6; | |
| 520 ptrRegs[REG_INDEX(DR7)] = context.Dr7; | |
| 521 | |
| 522 #elif _M_AMD64 | |
| 523 #define REG_INDEX(x) sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext_##x | |
| 524 | |
| 525 context.ContextFlags = CONTEXT_FULL | CONTEXT_DEBUG_REGISTERS; | |
| 526 ptrIDebugAdvanced->GetThreadContext(&context, sizeof(CONTEXT)); | |
| 527 | |
| 528 // Segment Registers and processor flags | |
| 529 ptrRegs[REG_INDEX(CS)] = context.SegCs; | |
| 530 ptrRegs[REG_INDEX(DS)] = context.SegDs; | |
| 531 ptrRegs[REG_INDEX(ES)] = context.SegEs; | |
| 532 ptrRegs[REG_INDEX(FS)] = context.SegFs; | |
| 533 ptrRegs[REG_INDEX(GS)] = context.SegGs; | |
| 534 ptrRegs[REG_INDEX(SS)] = context.SegSs; | |
| 535 ptrRegs[REG_INDEX(RFL)] = context.EFlags; | |
| 536 | |
| 537 // Integer registers | |
| 538 ptrRegs[REG_INDEX(RDI)] = context.Rdi; | |
| 539 ptrRegs[REG_INDEX(RSI)] = context.Rsi; | |
| 540 ptrRegs[REG_INDEX(RAX)] = context.Rax; | |
| 541 ptrRegs[REG_INDEX(RCX)] = context.Rcx; | |
| 542 ptrRegs[REG_INDEX(RDX)] = context.Rdx; | |
| 543 ptrRegs[REG_INDEX(RBX)] = context.Rbx; | |
| 544 ptrRegs[REG_INDEX(RBP)] = context.Rbp; | |
| 545 ptrRegs[REG_INDEX(RSP)] = context.Rsp; | |
| 546 | |
| 547 ptrRegs[REG_INDEX(R8)] = context.R8; | |
| 548 ptrRegs[REG_INDEX(R9)] = context.R9; | |
| 549 ptrRegs[REG_INDEX(R10)] = context.R10; | |
| 550 ptrRegs[REG_INDEX(R11)] = context.R11; | |
| 551 ptrRegs[REG_INDEX(R12)] = context.R12; | |
| 552 ptrRegs[REG_INDEX(R13)] = context.R13; | |
| 553 ptrRegs[REG_INDEX(R14)] = context.R14; | |
| 554 ptrRegs[REG_INDEX(R15)] = context.R15; | |
| 555 | |
| 556 // Program counter | |
| 557 ptrRegs[REG_INDEX(RIP)] = context.Rip; | |
| 558 #endif | |
| 559 | |
| 560 env->ReleaseLongArrayElements(regs, ptrRegs, JNI_COMMIT); | |
| 561 CHECK_EXCEPTION_(false); | |
| 562 | |
| 563 env->CallVoidMethod(obj, setThreadIntegerRegisterSet_ID, | |
| 564 (jlong) ptrThreadIds.asPtr()[t], regs); | |
| 565 CHECK_EXCEPTION_(false); | |
| 566 | |
| 567 ULONG sysId; | |
| 568 if (ptrIDebugSystemObjects->GetCurrentThreadSystemId(&sysId) != S_OK) { | |
| 569 THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: GetCurrentThreadSystemId failed!", false); | |
| 570 } | |
| 571 | |
| 572 env->CallVoidMethod(obj, addThread_ID, (jlong) sysId); | |
| 573 CHECK_EXCEPTION_(false); | |
| 574 } | |
| 575 | |
| 576 return true; | |
| 577 } | |
| 578 | |
| 579 /* | |
| 580 * Class: sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal | |
| 581 * Method: attach0 | |
| 582 * Signature: (Ljava/lang/String;Ljava/lang/String;)V | |
| 583 */ | |
| 584 JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal_attach0__Ljava_lang_String_2Ljava_lang_String_2 | |
| 585 (JNIEnv *env, jobject obj, jstring execName, jstring coreFileName) { | |
| 586 | |
| 587 if (getWindbgInterfaces(env, obj) == false) { | |
| 588 return; | |
| 589 } | |
| 590 | |
| 591 if (openDumpFile(env, obj, coreFileName) == false) { | |
| 592 return; | |
| 593 } | |
| 594 | |
| 595 if (addLoadObjects(env, obj) == false) { | |
| 596 return; | |
| 597 } | |
| 598 | |
| 599 if (addThreads(env, obj) == false) { | |
| 600 return; | |
| 601 } | |
| 602 } | |
| 603 | |
| 604 /* | |
| 605 * Class: sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal | |
| 606 * Method: attach0 | |
| 607 * Signature: (I)V | |
| 608 */ | |
| 609 JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal_attach0__I | |
| 610 (JNIEnv *env, jobject obj, jint pid) { | |
| 611 | |
| 612 if (getWindbgInterfaces(env, obj) == false) { | |
| 613 return; | |
| 614 } | |
| 615 | |
| 616 if (attachToProcess(env, obj, pid) == false) { | |
| 617 return; | |
| 618 } | |
| 619 | |
| 620 if (addLoadObjects(env, obj) == false) { | |
| 621 return; | |
| 622 } | |
| 623 | |
| 624 if (addThreads(env, obj) == false) { | |
| 625 return; | |
| 626 } | |
| 627 } | |
| 628 | |
| 629 | |
| 630 static bool releaseWindbgInterfaces(JNIEnv* env, jobject obj) { | |
| 631 IDebugDataSpaces* ptrIDebugDataSpaces = (IDebugDataSpaces*) env->GetLongField(obj, | |
| 632 ptrIDebugDataSpaces_ID); | |
| 633 CHECK_EXCEPTION_(false); | |
| 634 if (ptrIDebugDataSpaces != 0) { | |
| 635 ptrIDebugDataSpaces->Release(); | |
| 636 } | |
| 637 | |
| 638 IDebugOutputCallbacks* ptrIDebugOutputCallbacks = (IDebugOutputCallbacks*) | |
| 639 env->GetLongField(obj, ptrIDebugOutputCallbacks_ID); | |
| 640 CHECK_EXCEPTION_(false); | |
| 641 if (ptrIDebugOutputCallbacks != 0) { | |
| 642 ptrIDebugOutputCallbacks->Release(); | |
| 643 } | |
| 644 | |
| 645 IDebugAdvanced* ptrIDebugAdvanced = (IDebugAdvanced*) env->GetLongField(obj, | |
| 646 ptrIDebugAdvanced_ID); | |
| 647 CHECK_EXCEPTION_(false); | |
| 648 | |
| 649 if (ptrIDebugAdvanced != 0) { | |
| 650 ptrIDebugAdvanced->Release(); | |
| 651 } | |
| 652 | |
| 653 IDebugSymbols* ptrIDebugSymbols = (IDebugSymbols*) env->GetLongField(obj, | |
| 654 ptrIDebugSymbols_ID); | |
| 655 CHECK_EXCEPTION_(false); | |
| 656 if (ptrIDebugSymbols != 0) { | |
| 657 ptrIDebugSymbols->Release(); | |
| 658 } | |
| 659 | |
| 660 IDebugSystemObjects* ptrIDebugSystemObjects = (IDebugSystemObjects*) env->GetLongField(obj, | |
| 661 ptrIDebugSystemObjects_ID); | |
| 662 CHECK_EXCEPTION_(false); | |
| 663 if (ptrIDebugSystemObjects != 0) { | |
| 664 ptrIDebugSystemObjects->Release(); | |
| 665 } | |
| 666 | |
| 667 IDebugControl* ptrIDebugControl = (IDebugControl*) env->GetLongField(obj, | |
| 668 ptrIDebugControl_ID); | |
| 669 CHECK_EXCEPTION_(false); | |
| 670 if (ptrIDebugControl != 0) { | |
| 671 ptrIDebugControl->Release(); | |
| 672 } | |
| 673 | |
| 674 IDebugClient* ptrIDebugClient = (IDebugClient*) env->GetLongField(obj, | |
| 675 ptrIDebugClient_ID); | |
| 676 CHECK_EXCEPTION_(false); | |
| 677 if (ptrIDebugClient != 0) { | |
| 678 ptrIDebugClient->Release(); | |
| 679 } | |
| 680 | |
| 681 return true; | |
| 682 } | |
| 683 | |
| 684 /* | |
| 685 * Class: sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal | |
| 686 * Method: detach0 | |
| 687 * Signature: ()V | |
| 688 */ | |
| 689 JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal_detach0 | |
| 690 (JNIEnv *env, jobject obj) { | |
| 691 IDebugClient* ptrIDebugClient = (IDebugClient*) env->GetLongField(obj, | |
| 692 ptrIDebugClient_ID); | |
| 693 CHECK_EXCEPTION; | |
| 694 ptrIDebugClient->DetachProcesses(); | |
| 695 releaseWindbgInterfaces(env, obj); | |
| 696 } | |
| 697 | |
| 698 | |
| 699 /* | |
| 700 * Class: sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal | |
| 701 * Method: readBytesFromProcess0 | |
| 702 * Signature: (JJ)[B | |
| 703 */ | |
| 704 JNIEXPORT jbyteArray JNICALL Java_sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal_readBytesFromProcess0 | |
| 705 (JNIEnv *env, jobject obj, jlong address, jlong numBytes) { | |
| 706 jbyteArray byteArray = env->NewByteArray((long) numBytes); | |
| 707 CHECK_EXCEPTION_(0); | |
| 708 | |
| 709 jboolean isCopy = JNI_FALSE; | |
| 710 jbyte* bytePtr = env->GetByteArrayElements(byteArray, &isCopy); | |
| 711 CHECK_EXCEPTION_(0); | |
| 712 | |
| 713 IDebugDataSpaces* ptrIDebugDataSpaces = (IDebugDataSpaces*) env->GetLongField(obj, | |
| 714 ptrIDebugDataSpaces_ID); | |
| 715 CHECK_EXCEPTION_(0); | |
| 716 | |
| 717 ULONG bytesRead; | |
| 718 if (ptrIDebugDataSpaces->ReadVirtual((ULONG64) address, (PVOID) bytePtr, | |
| 719 (ULONG)numBytes, &bytesRead) != S_OK) { | |
| 720 THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: ReadVirtual failed!", 0); | |
| 721 } | |
| 722 | |
| 723 if (bytesRead != numBytes) { | |
| 724 return 0; | |
| 725 } | |
| 726 | |
| 727 env->ReleaseByteArrayElements(byteArray, bytePtr, 0); | |
| 728 CHECK_EXCEPTION_(0); | |
| 729 | |
| 730 return byteArray; | |
| 731 } | |
| 732 | |
| 733 /* | |
| 734 * Class: sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal | |
| 735 * Method: getThreadIdFromSysId0 | |
| 736 * Signature: (J)J | |
| 737 */ | |
| 738 JNIEXPORT jlong JNICALL Java_sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal_getThreadIdFromSysId0 | |
| 739 (JNIEnv *env, jobject obj, jlong sysId) { | |
| 740 IDebugSystemObjects* ptrIDebugSystemObjects = (IDebugSystemObjects*) env->GetLongField(obj, | |
| 741 ptrIDebugSystemObjects_ID); | |
| 742 CHECK_EXCEPTION_(0); | |
| 743 | |
| 744 ULONG id = 0; | |
| 745 if (ptrIDebugSystemObjects->GetThreadIdBySystemId((ULONG)sysId, &id) != S_OK) { | |
| 746 THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: GetThreadIdBySystemId failed!", 0); | |
| 747 } | |
| 748 | |
| 749 return (jlong) id; | |
| 750 } | |
| 751 | |
| 752 // manage COM 'auto' pointers (to avoid multiple Release | |
| 753 // calls at every early (exception) returns). Similar to AutoArrayPtr. | |
| 754 | |
| 755 template <class T> | |
| 756 class AutoCOMPtr { | |
| 757 T* m_ptr; | |
| 758 | |
| 759 public: | |
| 760 AutoCOMPtr(T* ptr) : m_ptr(ptr) { | |
| 761 } | |
| 762 | |
| 763 ~AutoCOMPtr() { | |
| 764 if (m_ptr) { | |
| 765 m_ptr->Release(); | |
| 766 } | |
| 767 } | |
| 768 | |
| 769 T* operator->() { | |
| 770 return m_ptr; | |
| 771 } | |
| 772 }; | |
| 773 | |
| 774 /* | |
| 775 * Class: sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal | |
| 776 * Method: consoleExecuteCommand0 | |
| 777 * Signature: (Ljava/lang/String;)Ljava/lang/String; | |
| 778 */ | |
| 779 JNIEXPORT jstring JNICALL Java_sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal_consoleExecuteCommand0 | |
| 780 (JNIEnv *env, jobject obj, jstring cmd) { | |
| 781 jboolean isCopy = JNI_FALSE; | |
| 782 const char* buf = env->GetStringUTFChars(cmd, &isCopy); | |
| 783 CHECK_EXCEPTION_(0); | |
| 784 AutoJavaString command(env, cmd, buf); | |
| 785 | |
| 786 IDebugClient* ptrIDebugClient = (IDebugClient*) env->GetLongField(obj, ptrIDebugClient_ID); | |
| 787 CHECK_EXCEPTION_(0); | |
| 788 | |
| 789 IDebugClient* tmpClientPtr = 0; | |
| 790 if (ptrIDebugClient->CreateClient(&tmpClientPtr) != S_OK) { | |
| 791 THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: CreateClient failed!", 0); | |
| 792 } | |
| 793 AutoCOMPtr<IDebugClient> tmpClient(tmpClientPtr); | |
| 794 | |
| 795 IDebugControl* tmpControlPtr = 0; | |
| 796 if (tmpClient->QueryInterface(__uuidof(IDebugControl), (PVOID*) &tmpControlPtr) != S_OK) { | |
| 797 THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: QueryInterface (IDebugControl) failed", 0); | |
| 798 } | |
| 799 AutoCOMPtr<IDebugControl> tmpControl(tmpControlPtr); | |
| 800 | |
| 801 SAOutputCallbacks* saOutputCallbacks = (SAOutputCallbacks*) env->GetLongField(obj, | |
| 802 ptrIDebugOutputCallbacks_ID); | |
| 803 CHECK_EXCEPTION_(0); | |
| 804 | |
| 805 saOutputCallbacks->clearBuffer(); | |
| 806 | |
| 807 if (tmpClient->SetOutputCallbacks(saOutputCallbacks) != S_OK) { | |
| 808 THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: SetOutputCallbacks failed!", 0); | |
| 809 } | |
| 810 | |
| 811 tmpControl->Execute(DEBUG_OUTPUT_VERBOSE, command, DEBUG_EXECUTE_DEFAULT); | |
| 812 | |
| 813 const char* output = saOutputCallbacks->getBuffer(); | |
| 814 if (output == 0) { | |
| 815 output = ""; | |
| 816 } | |
| 817 | |
| 818 jstring res = env->NewStringUTF(output); | |
| 819 saOutputCallbacks->clearBuffer(); | |
| 820 return res; | |
| 821 } | |
| 822 | |
| 823 /* | |
| 824 * Class: sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal | |
| 825 * Method: lookupByName0 | |
| 826 * Signature: (Ljava/lang/String;Ljava/lang/String;)J | |
| 827 */ | |
| 828 | |
| 829 JNIEXPORT jlong JNICALL Java_sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal_lookupByName0 | |
| 830 (JNIEnv *env, jobject obj, jstring objName, jstring sym) { | |
| 831 IDebugSymbols* ptrIDebugSymbols = (IDebugSymbols*) env->GetLongField(obj, | |
| 832 ptrIDebugSymbols_ID); | |
| 833 CHECK_EXCEPTION_(0); | |
| 834 | |
| 835 jboolean isCopy; | |
| 836 const char* buf = env->GetStringUTFChars(sym, &isCopy); | |
| 837 CHECK_EXCEPTION_(0); | |
| 838 AutoJavaString name(env, sym, buf); | |
| 839 | |
| 840 ULONG64 offset = 0L; | |
| 841 if (strstr(name, "::") != 0) { | |
| 842 ptrIDebugSymbols->AddSymbolOptions(SYMOPT_UNDNAME); | |
| 843 } else { | |
| 844 ptrIDebugSymbols->RemoveSymbolOptions(SYMOPT_UNDNAME); | |
| 845 } | |
| 846 if (ptrIDebugSymbols->GetOffsetByName(name, &offset) != S_OK) { | |
| 847 return (jlong) 0; | |
| 848 } | |
| 849 return (jlong) offset; | |
| 850 } | |
| 851 | |
| 852 #define SYMBOL_BUFSIZE 512 | |
| 853 /* | |
| 854 * Class: sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal | |
| 855 * Method: lookupByAddress0 | |
| 856 * Signature: (J)Lsun/jvm/hotspot/debugger/cdbg/ClosestSymbol; | |
| 857 */ | |
| 858 JNIEXPORT jobject JNICALL Java_sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal_lookupByAddress0 | |
| 859 (JNIEnv *env, jobject obj, jlong address) { | |
| 860 IDebugSymbols* ptrIDebugSymbols = (IDebugSymbols*) env->GetLongField(obj, | |
| 861 ptrIDebugSymbols_ID); | |
| 862 CHECK_EXCEPTION_(0); | |
| 863 | |
| 864 ULONG64 disp = 0L; | |
| 865 char buf[SYMBOL_BUFSIZE]; | |
| 866 memset(buf, 0, sizeof(buf)); | |
| 867 | |
| 868 if (ptrIDebugSymbols->GetNameByOffset(address, buf, sizeof(buf),0,&disp) | |
| 869 != S_OK) { | |
| 870 return 0; | |
| 871 } | |
| 872 | |
| 873 jstring sym = env->NewStringUTF(buf); | |
| 874 CHECK_EXCEPTION_(0); | |
| 875 jobject res = env->CallObjectMethod(obj, createClosestSymbol_ID, sym, disp); | |
| 876 CHECK_EXCEPTION_(0); | |
| 877 return res; | |
| 878 } |