author | ihse |
Wed, 03 Oct 2018 16:02:24 +0200 | |
branch | JEP-230-microbenchmarks-branch |
changeset 56921 | 69544f53b8bf |
parent 49274 | 9f3ce373370a |
child 53042 | 56fbb14251ca |
permissions | -rw-r--r-- |
1 | 1 |
/* |
49274 | 2 |
* Copyright (c) 2002, 2018, Oracle and/or its affiliates. All rights reserved. |
1 | 3 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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||
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// Disable CRT security warning against strcpy/strcat |
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#pragma warning(disable: 4996) |
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// this is source code windbg based SA debugger agent to debug |
29 |
// Dr. Watson dump files and process snapshots. |
|
30 |
||
31 |
#include "sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal.h" |
|
32 |
||
15475 | 33 |
#ifdef _M_IX86 |
1 | 34 |
#include "sun_jvm_hotspot_debugger_x86_X86ThreadContext.h" |
35 |
#define NPRGREG sun_jvm_hotspot_debugger_x86_X86ThreadContext_NPRGREG |
|
36 |
#elif _M_AMD64 |
|
37 |
#include "sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext.h" |
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38 |
#define NPRGREG sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext_NPRGREG |
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#else |
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#error "SA windbg back-end is not supported for your cpu!" |
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#endif |
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||
43 |
#include <limits.h> |
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#include <windows.h> |
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45 |
||
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#define DEBUG_NO_IMPLEMENTATION |
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#include <dbgeng.h> |
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#include <dbghelp.h> |
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49 |
||
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// simple template to manage array delete across early (error) returns |
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51 |
||
52 |
template <class T> |
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53 |
class AutoArrayPtr { |
|
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T* m_ptr; |
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public: |
|
56 |
AutoArrayPtr(T* ptr) : m_ptr(ptr) { |
|
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} |
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58 |
||
59 |
~AutoArrayPtr() { |
|
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delete [] m_ptr; |
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} |
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||
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T* asPtr() { |
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return m_ptr; |
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} |
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}; |
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||
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class AutoJavaString { |
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JNIEnv* m_env; |
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jstring m_str; |
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const char* m_buf; |
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||
73 |
public: |
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AutoJavaString(JNIEnv* env, jstring str, const char* buf) |
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: m_env(env), m_str(str), m_buf(buf) { |
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} |
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77 |
||
78 |
~AutoJavaString() { |
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m_env->ReleaseStringUTFChars(m_str, m_buf); |
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} |
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||
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operator const char* () { |
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return m_buf; |
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} |
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}; |
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||
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// field and method IDs we want here |
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||
89 |
static jfieldID imagePath_ID = 0; |
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90 |
static jfieldID symbolPath_ID = 0; |
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91 |
static jfieldID ptrIDebugClient_ID = 0; |
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92 |
static jfieldID ptrIDebugControl_ID = 0; |
|
93 |
static jfieldID ptrIDebugDataSpaces_ID = 0; |
|
94 |
static jfieldID ptrIDebugOutputCallbacks_ID = 0; |
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95 |
static jfieldID ptrIDebugAdvanced_ID = 0; |
|
96 |
static jfieldID ptrIDebugSymbols_ID = 0; |
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97 |
static jfieldID ptrIDebugSystemObjects_ID = 0; |
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99 |
static jmethodID addLoadObject_ID = 0; |
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100 |
static jmethodID addThread_ID = 0; |
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101 |
static jmethodID createClosestSymbol_ID = 0; |
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102 |
static jmethodID setThreadIntegerRegisterSet_ID = 0; |
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||
104 |
#define CHECK_EXCEPTION_(value) if(env->ExceptionOccurred()) { return value; } |
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105 |
#define CHECK_EXCEPTION if(env->ExceptionOccurred()) { return;} |
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107 |
#define THROW_NEW_DEBUGGER_EXCEPTION_(str, value) { \ |
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throwNewDebuggerException(env, str); return value; } |
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#define THROW_NEW_DEBUGGER_EXCEPTION(str) { throwNewDebuggerException(env, str); \ |
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return;} |
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static void throwNewDebuggerException(JNIEnv* env, const char* errMsg) { |
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jclass clazz = env->FindClass("sun/jvm/hotspot/debugger/DebuggerException"); |
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CHECK_EXCEPTION; |
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env->ThrowNew(clazz, errMsg); |
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} |
118 |
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119 |
/* |
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* Class: sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal |
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* Method: initIDs |
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122 |
* Signature: ()V |
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123 |
*/ |
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124 |
JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal_initIDs |
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(JNIEnv *env, jclass clazz) { |
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126 |
imagePath_ID = env->GetStaticFieldID(clazz, "imagePath", "Ljava/lang/String;"); |
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127 |
CHECK_EXCEPTION; |
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128 |
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129 |
symbolPath_ID = env->GetStaticFieldID(clazz, "symbolPath", "Ljava/lang/String;"); |
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130 |
CHECK_EXCEPTION; |
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131 |
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132 |
ptrIDebugClient_ID = env->GetFieldID(clazz, "ptrIDebugClient", "J"); |
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133 |
CHECK_EXCEPTION; |
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134 |
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135 |
ptrIDebugControl_ID = env->GetFieldID(clazz, "ptrIDebugControl", "J"); |
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136 |
CHECK_EXCEPTION; |
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137 |
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138 |
ptrIDebugDataSpaces_ID = env->GetFieldID(clazz, "ptrIDebugDataSpaces", "J"); |
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139 |
CHECK_EXCEPTION; |
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140 |
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141 |
ptrIDebugOutputCallbacks_ID = env->GetFieldID(clazz, |
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142 |
"ptrIDebugOutputCallbacks", "J"); |
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CHECK_EXCEPTION; |
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145 |
ptrIDebugAdvanced_ID = env->GetFieldID(clazz, "ptrIDebugAdvanced", "J"); |
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146 |
CHECK_EXCEPTION; |
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147 |
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148 |
ptrIDebugSymbols_ID = env->GetFieldID(clazz, |
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149 |
"ptrIDebugSymbols", "J"); |
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150 |
CHECK_EXCEPTION; |
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151 |
||
152 |
ptrIDebugSystemObjects_ID = env->GetFieldID(clazz, |
|
153 |
"ptrIDebugSystemObjects", "J"); |
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154 |
CHECK_EXCEPTION; |
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155 |
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156 |
addLoadObject_ID = env->GetMethodID(clazz, "addLoadObject", |
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157 |
"(Ljava/lang/String;JJ)V"); |
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158 |
CHECK_EXCEPTION; |
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159 |
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160 |
addThread_ID = env->GetMethodID(clazz, "addThread", "(J)V"); |
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161 |
CHECK_EXCEPTION; |
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162 |
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163 |
createClosestSymbol_ID = env->GetMethodID(clazz, "createClosestSymbol", |
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164 |
"(Ljava/lang/String;J)Lsun/jvm/hotspot/debugger/cdbg/ClosestSymbol;"); |
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165 |
CHECK_EXCEPTION; |
|
166 |
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167 |
setThreadIntegerRegisterSet_ID = env->GetMethodID(clazz, |
|
168 |
"setThreadIntegerRegisterSet", "(J[J)V"); |
|
169 |
CHECK_EXCEPTION; |
|
170 |
||
171 |
} |
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172 |
||
173 |
// class for IDebugOutputCallbacks |
|
174 |
||
175 |
class SAOutputCallbacks : public IDebugOutputCallbacks { |
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176 |
LONG m_refCount; |
|
177 |
char* m_msgBuffer; |
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178 |
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179 |
public: |
|
180 |
SAOutputCallbacks() : m_refCount(0), m_msgBuffer(0) { |
|
181 |
} |
|
182 |
||
183 |
~SAOutputCallbacks() { |
|
184 |
clearBuffer(); |
|
185 |
} |
|
186 |
||
187 |
const char* getBuffer() const { |
|
188 |
return m_msgBuffer; |
|
189 |
} |
|
190 |
||
191 |
void clearBuffer() { |
|
192 |
if (m_msgBuffer) { |
|
193 |
free(m_msgBuffer); |
|
194 |
m_msgBuffer = 0; |
|
195 |
} |
|
196 |
} |
|
197 |
||
198 |
STDMETHOD_(ULONG, AddRef)(THIS); |
|
199 |
STDMETHOD_(ULONG, Release)(THIS); |
|
200 |
STDMETHOD(QueryInterface)(THIS_ |
|
201 |
IN REFIID interfaceId, |
|
202 |
OUT PVOID* ppInterface); |
|
203 |
STDMETHOD(Output)(THIS_ |
|
204 |
IN ULONG mask, |
|
205 |
IN PCSTR msg); |
|
206 |
}; |
|
207 |
||
208 |
STDMETHODIMP_(ULONG) SAOutputCallbacks::AddRef(THIS) { |
|
209 |
InterlockedIncrement(&m_refCount); |
|
210 |
return m_refCount; |
|
211 |
} |
|
212 |
||
213 |
STDMETHODIMP_(ULONG) SAOutputCallbacks::Release(THIS) { |
|
214 |
LONG retVal; |
|
215 |
InterlockedDecrement(&m_refCount); |
|
216 |
retVal = m_refCount; |
|
217 |
if (retVal == 0) { |
|
218 |
delete this; |
|
219 |
} |
|
220 |
return retVal; |
|
221 |
} |
|
222 |
||
223 |
STDMETHODIMP SAOutputCallbacks::QueryInterface(THIS_ |
|
224 |
IN REFIID interfaceId, |
|
225 |
OUT PVOID* ppInterface) { |
|
226 |
*ppInterface = 0; |
|
227 |
HRESULT res = E_NOINTERFACE; |
|
228 |
if (TRUE == IsEqualIID(interfaceId, __uuidof(IUnknown)) || |
|
229 |
TRUE == IsEqualIID(interfaceId, __uuidof(IDebugOutputCallbacks))) { |
|
230 |
*ppInterface = (IDebugOutputCallbacks*) this; |
|
231 |
AddRef(); |
|
232 |
res = S_OK; |
|
233 |
} |
|
234 |
return res; |
|
235 |
} |
|
236 |
||
237 |
STDMETHODIMP SAOutputCallbacks::Output(THIS_ |
|
238 |
IN ULONG mask, |
|
239 |
IN PCSTR msg) { |
|
240 |
int len = (int) (strlen(msg) + 1); |
|
241 |
if (m_msgBuffer == 0) { |
|
242 |
m_msgBuffer = (char*) malloc(len); |
|
243 |
if (m_msgBuffer == 0) { |
|
244 |
fprintf(stderr, "out of memory debugger output!\n"); |
|
245 |
return S_FALSE; |
|
246 |
} |
|
247 |
strcpy(m_msgBuffer, msg); |
|
248 |
} else { |
|
249 |
m_msgBuffer = (char*) realloc(m_msgBuffer, len + strlen(m_msgBuffer)); |
|
250 |
if (m_msgBuffer == 0) { |
|
251 |
fprintf(stderr, "out of memory debugger output!\n"); |
|
252 |
return S_FALSE; |
|
253 |
} |
|
254 |
strcat(m_msgBuffer, msg); |
|
255 |
} |
|
256 |
return S_OK; |
|
257 |
} |
|
258 |
||
259 |
static bool getWindbgInterfaces(JNIEnv* env, jobject obj) { |
|
260 |
// get windbg interfaces .. |
|
261 |
||
262 |
IDebugClient* ptrIDebugClient = 0; |
|
263 |
if (DebugCreate(__uuidof(IDebugClient), (PVOID*) &ptrIDebugClient) != S_OK) { |
|
264 |
THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: not able to create IDebugClient object!", false); |
|
265 |
} |
|
266 |
env->SetLongField(obj, ptrIDebugClient_ID, (jlong) ptrIDebugClient); |
|
267 |
||
268 |
IDebugControl* ptrIDebugControl = 0; |
|
269 |
if (ptrIDebugClient->QueryInterface(__uuidof(IDebugControl), (PVOID*) &ptrIDebugControl) |
|
270 |
!= S_OK) { |
|
271 |
THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: not able to get IDebugControl", false); |
|
272 |
} |
|
273 |
env->SetLongField(obj, ptrIDebugControl_ID, (jlong) ptrIDebugControl); |
|
274 |
||
275 |
IDebugDataSpaces* ptrIDebugDataSpaces = 0; |
|
276 |
if (ptrIDebugClient->QueryInterface(__uuidof(IDebugDataSpaces), (PVOID*) &ptrIDebugDataSpaces) |
|
277 |
!= S_OK) { |
|
278 |
THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: not able to get IDebugDataSpaces object!", false); |
|
279 |
} |
|
280 |
env->SetLongField(obj, ptrIDebugDataSpaces_ID, (jlong) ptrIDebugDataSpaces); |
|
281 |
||
282 |
SAOutputCallbacks* ptrIDebugOutputCallbacks = new SAOutputCallbacks(); |
|
283 |
ptrIDebugOutputCallbacks->AddRef(); |
|
284 |
env->SetLongField(obj, ptrIDebugOutputCallbacks_ID, (jlong) ptrIDebugOutputCallbacks); |
|
285 |
CHECK_EXCEPTION_(false); |
|
286 |
||
287 |
IDebugAdvanced* ptrIDebugAdvanced = 0; |
|
288 |
if (ptrIDebugClient->QueryInterface(__uuidof(IDebugAdvanced), (PVOID*) &ptrIDebugAdvanced) |
|
289 |
!= S_OK) { |
|
290 |
THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: not able to get IDebugAdvanced object!", false); |
|
291 |
} |
|
292 |
env->SetLongField(obj, ptrIDebugAdvanced_ID, (jlong) ptrIDebugAdvanced); |
|
293 |
||
294 |
IDebugSymbols* ptrIDebugSymbols = 0; |
|
295 |
if (ptrIDebugClient->QueryInterface(__uuidof(IDebugSymbols), (PVOID*) &ptrIDebugSymbols) |
|
296 |
!= S_OK) { |
|
297 |
THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: not able to get IDebugSymbols object!", false); |
|
298 |
} |
|
299 |
env->SetLongField(obj, ptrIDebugSymbols_ID, (jlong) ptrIDebugSymbols); |
|
300 |
||
301 |
IDebugSystemObjects* ptrIDebugSystemObjects = 0; |
|
302 |
if (ptrIDebugClient->QueryInterface(__uuidof(IDebugSystemObjects), (PVOID*) &ptrIDebugSystemObjects) |
|
303 |
!= S_OK) { |
|
304 |
THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: not able to get IDebugSystemObjects object!", false); |
|
305 |
} |
|
306 |
env->SetLongField(obj, ptrIDebugSystemObjects_ID, (jlong) ptrIDebugSystemObjects); |
|
307 |
||
308 |
return true; |
|
309 |
} |
|
310 |
||
311 |
static bool setImageAndSymbolPath(JNIEnv* env, jobject obj) { |
|
312 |
jboolean isCopy; |
|
313 |
jclass clazz = env->GetObjectClass(obj); |
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CHECK_EXCEPTION_(false); |
1 | 315 |
jstring path; |
316 |
const char* buf; |
|
317 |
||
318 |
path = (jstring) env->GetStaticObjectField(clazz, imagePath_ID); |
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CHECK_EXCEPTION_(false); |
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if (path == NULL) { |
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THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: not able to get imagePath field ID!", false); |
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322 |
} |
1 | 323 |
buf = env->GetStringUTFChars(path, &isCopy); |
324 |
CHECK_EXCEPTION_(false); |
|
325 |
AutoJavaString imagePath(env, path, buf); |
|
326 |
||
327 |
path = (jstring) env->GetStaticObjectField(clazz, symbolPath_ID); |
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CHECK_EXCEPTION_(false); |
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if (path == NULL) { |
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330 |
THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: not able to get symbolPath field ID!", false); |
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331 |
} |
1 | 332 |
buf = env->GetStringUTFChars(path, &isCopy); |
333 |
CHECK_EXCEPTION_(false); |
|
334 |
AutoJavaString symbolPath(env, path, buf); |
|
335 |
||
336 |
IDebugSymbols* ptrIDebugSymbols = (IDebugSymbols*) env->GetLongField(obj, |
|
337 |
ptrIDebugSymbols_ID); |
|
338 |
CHECK_EXCEPTION_(false); |
|
339 |
||
340 |
ptrIDebugSymbols->SetImagePath(imagePath); |
|
341 |
ptrIDebugSymbols->SetSymbolPath(symbolPath); |
|
342 |
return true; |
|
343 |
} |
|
344 |
||
345 |
static bool openDumpFile(JNIEnv* env, jobject obj, jstring coreFileName) { |
|
346 |
// open the dump file |
|
347 |
jboolean isCopy; |
|
348 |
const char* buf = env->GetStringUTFChars(coreFileName, &isCopy); |
|
349 |
CHECK_EXCEPTION_(false); |
|
350 |
AutoJavaString coreFile(env, coreFileName, buf); |
|
351 |
if (setImageAndSymbolPath(env, obj) == false) { |
|
352 |
return false; |
|
353 |
} |
|
354 |
||
355 |
IDebugClient* ptrIDebugClient = (IDebugClient*) env->GetLongField(obj, |
|
356 |
ptrIDebugClient_ID); |
|
357 |
CHECK_EXCEPTION_(false); |
|
358 |
if (ptrIDebugClient->OpenDumpFile(coreFile) != S_OK) { |
|
359 |
THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: OpenDumpFile failed!", false); |
|
360 |
} |
|
361 |
||
362 |
IDebugControl* ptrIDebugControl = (IDebugControl*) env->GetLongField(obj, |
|
363 |
ptrIDebugControl_ID); |
|
364 |
CHECK_EXCEPTION_(false); |
|
365 |
if (ptrIDebugControl->WaitForEvent(DEBUG_WAIT_DEFAULT, INFINITE) != S_OK) { |
|
366 |
THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: WaitForEvent failed!", false); |
|
367 |
} |
|
368 |
||
369 |
return true; |
|
370 |
} |
|
371 |
||
372 |
||
373 |
static bool attachToProcess(JNIEnv* env, jobject obj, jint pid) { |
|
374 |
if (setImageAndSymbolPath(env, obj) == false) { |
|
375 |
return false; |
|
376 |
} |
|
377 |
IDebugClient* ptrIDebugClient = (IDebugClient*) env->GetLongField(obj, |
|
378 |
ptrIDebugClient_ID); |
|
379 |
CHECK_EXCEPTION_(false); |
|
380 |
||
381 |
/*********************************************************************************** |
|
382 |
||
383 |
We are attaching to a process in 'read-only' mode. i.e., we do not want to |
|
384 |
put breakpoints, suspend/resume threads etc. For read-only JDI and HSDB kind of |
|
15798 | 385 |
usage this should suffice. |
1 | 386 |
|
387 |
Please refer to DEBUG_ATTACH_NONINVASIVE mode source comments from dbgeng.h. |
|
388 |
In this mode, debug engine does not call DebugActiveProrcess. i.e., we are not |
|
389 |
actually debugging at all. We can safely 'detach' from the process anytime |
|
390 |
we want and debuggee process is left as is on all Windows variants. |
|
391 |
||
392 |
This also makes JDI-on-SA installation/usage simpler because with this we would |
|
393 |
not need a tool like ServiceInstaller from http://www.kcmultimedia.com/smaster. |
|
394 |
||
395 |
***********************************************************************************/ |
|
396 |
||
397 |
||
398 |
if (ptrIDebugClient->AttachProcess(0, pid, DEBUG_ATTACH_NONINVASIVE) != S_OK) { |
|
399 |
THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: AttachProcess failed!", false); |
|
400 |
} |
|
401 |
||
402 |
IDebugControl* ptrIDebugControl = (IDebugControl*) env->GetLongField(obj, |
|
403 |
ptrIDebugControl_ID); |
|
404 |
CHECK_EXCEPTION_(false); |
|
405 |
if (ptrIDebugControl->WaitForEvent(DEBUG_WAIT_DEFAULT, INFINITE) != S_OK) { |
|
406 |
THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: WaitForEvent failed!", false); |
|
407 |
} |
|
408 |
||
409 |
return true; |
|
410 |
} |
|
411 |
||
412 |
||
413 |
static bool addLoadObjects(JNIEnv* env, jobject obj) { |
|
414 |
IDebugSymbols* ptrIDebugSymbols = (IDebugSymbols*) env->GetLongField(obj, |
|
415 |
ptrIDebugSymbols_ID); |
|
416 |
CHECK_EXCEPTION_(false); |
|
417 |
ULONG loaded = 0, unloaded = 0; |
|
418 |
if (ptrIDebugSymbols->GetNumberModules(&loaded, &unloaded) != S_OK) { |
|
419 |
THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: GetNumberModules failed!", false); |
|
420 |
} |
|
421 |
||
422 |
AutoArrayPtr<DEBUG_MODULE_PARAMETERS> params(new DEBUG_MODULE_PARAMETERS[loaded]); |
|
423 |
||
424 |
if (params.asPtr() == 0) { |
|
425 |
THROW_NEW_DEBUGGER_EXCEPTION_("out of memory to allocate debug module params!", false); |
|
426 |
} |
|
427 |
||
428 |
if (ptrIDebugSymbols->GetModuleParameters(loaded, 0, NULL, params.asPtr()) != S_OK) { |
|
429 |
THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: GetModuleParameters failed!", false); |
|
430 |
} |
|
431 |
||
432 |
for (int u = 0; u < (int)loaded; u++) { |
|
433 |
TCHAR imageName[MAX_PATH]; |
|
434 |
if (ptrIDebugSymbols->GetModuleNames(DEBUG_ANY_ID, params.asPtr()[u].Base, |
|
435 |
imageName, MAX_PATH, NULL, NULL, |
|
436 |
0, NULL, NULL, 0, NULL) != S_OK) { |
|
437 |
THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: GetModuleNames failed!", false); |
|
438 |
} |
|
439 |
||
440 |
jstring strName = env->NewStringUTF(imageName); |
|
441 |
CHECK_EXCEPTION_(false); |
|
442 |
env->CallVoidMethod(obj, addLoadObject_ID, strName, (jlong) params.asPtr()[u].Size, |
|
443 |
(jlong) params.asPtr()[u].Base); |
|
444 |
CHECK_EXCEPTION_(false); |
|
445 |
} |
|
446 |
||
447 |
return true; |
|
448 |
} |
|
449 |
||
450 |
static bool addThreads(JNIEnv* env, jobject obj) { |
|
451 |
IDebugSystemObjects* ptrIDebugSystemObjects = (IDebugSystemObjects*) env->GetLongField(obj, |
|
452 |
ptrIDebugSystemObjects_ID); |
|
453 |
CHECK_EXCEPTION_(false); |
|
454 |
||
455 |
ULONG numThreads = 0; |
|
456 |
if (ptrIDebugSystemObjects->GetNumberThreads(&numThreads) != S_OK) { |
|
457 |
THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: GetNumberThreads failed!", false); |
|
458 |
} |
|
459 |
||
460 |
AutoArrayPtr<ULONG> ptrSysThreadIds = new ULONG[numThreads]; |
|
461 |
||
462 |
if (ptrSysThreadIds.asPtr() == 0) { |
|
463 |
THROW_NEW_DEBUGGER_EXCEPTION_("out of memory to allocate thread ids!", false); |
|
464 |
} |
|
465 |
||
466 |
AutoArrayPtr<ULONG> ptrThreadIds = new ULONG[numThreads]; |
|
467 |
||
468 |
if (ptrThreadIds.asPtr() == 0) { |
|
469 |
THROW_NEW_DEBUGGER_EXCEPTION_("out of memory to allocate thread ids!", false); |
|
470 |
} |
|
471 |
||
472 |
if (ptrIDebugSystemObjects->GetThreadIdsByIndex(0, numThreads, |
|
473 |
ptrThreadIds.asPtr(), ptrSysThreadIds.asPtr()) != S_OK) { |
|
474 |
THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: GetThreadIdsByIndex failed!", false); |
|
475 |
} |
|
476 |
||
477 |
||
478 |
IDebugAdvanced* ptrIDebugAdvanced = (IDebugAdvanced*) env->GetLongField(obj, |
|
479 |
ptrIDebugAdvanced_ID); |
|
480 |
CHECK_EXCEPTION_(false); |
|
481 |
||
482 |
// for each thread, get register context and save it. |
|
483 |
for (ULONG t = 0; t < numThreads; t++) { |
|
484 |
if (ptrIDebugSystemObjects->SetCurrentThreadId(ptrThreadIds.asPtr()[t]) != S_OK) { |
|
485 |
THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: SetCurrentThread failed!", false); |
|
486 |
} |
|
487 |
||
488 |
jlongArray regs = env->NewLongArray(NPRGREG); |
|
489 |
CHECK_EXCEPTION_(false); |
|
490 |
||
491 |
jboolean isCopy = JNI_FALSE; |
|
492 |
jlong* ptrRegs = env->GetLongArrayElements(regs, &isCopy); |
|
493 |
CHECK_EXCEPTION_(false); |
|
494 |
||
495 |
// copy register values from the CONTEXT struct |
|
496 |
CONTEXT context; |
|
497 |
memset(&context, 0, sizeof(CONTEXT)); |
|
498 |
||
499 |
#undef REG_INDEX |
|
15475 | 500 |
#ifdef _M_IX86 |
1 | 501 |
#define REG_INDEX(x) sun_jvm_hotspot_debugger_x86_X86ThreadContext_##x |
502 |
||
503 |
context.ContextFlags = CONTEXT_FULL | CONTEXT_DEBUG_REGISTERS; |
|
504 |
ptrIDebugAdvanced->GetThreadContext(&context, sizeof(CONTEXT)); |
|
505 |
||
506 |
ptrRegs[REG_INDEX(GS)] = context.SegGs; |
|
507 |
ptrRegs[REG_INDEX(FS)] = context.SegFs; |
|
508 |
ptrRegs[REG_INDEX(ES)] = context.SegEs; |
|
509 |
ptrRegs[REG_INDEX(DS)] = context.SegDs; |
|
510 |
||
511 |
ptrRegs[REG_INDEX(EDI)] = context.Edi; |
|
512 |
ptrRegs[REG_INDEX(ESI)] = context.Esi; |
|
513 |
ptrRegs[REG_INDEX(EBX)] = context.Ebx; |
|
514 |
ptrRegs[REG_INDEX(EDX)] = context.Edx; |
|
515 |
ptrRegs[REG_INDEX(ECX)] = context.Ecx; |
|
516 |
ptrRegs[REG_INDEX(EAX)] = context.Eax; |
|
517 |
||
518 |
ptrRegs[REG_INDEX(FP)] = context.Ebp; |
|
519 |
ptrRegs[REG_INDEX(PC)] = context.Eip; |
|
520 |
ptrRegs[REG_INDEX(CS)] = context.SegCs; |
|
521 |
ptrRegs[REG_INDEX(EFL)] = context.EFlags; |
|
522 |
ptrRegs[REG_INDEX(SP)] = context.Esp; |
|
523 |
ptrRegs[REG_INDEX(SS)] = context.SegSs; |
|
524 |
||
525 |
ptrRegs[REG_INDEX(DR0)] = context.Dr0; |
|
526 |
ptrRegs[REG_INDEX(DR1)] = context.Dr1; |
|
527 |
ptrRegs[REG_INDEX(DR2)] = context.Dr2; |
|
528 |
ptrRegs[REG_INDEX(DR3)] = context.Dr3; |
|
529 |
ptrRegs[REG_INDEX(DR6)] = context.Dr6; |
|
530 |
ptrRegs[REG_INDEX(DR7)] = context.Dr7; |
|
531 |
||
532 |
#elif _M_AMD64 |
|
533 |
#define REG_INDEX(x) sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext_##x |
|
534 |
||
535 |
context.ContextFlags = CONTEXT_FULL | CONTEXT_DEBUG_REGISTERS; |
|
536 |
ptrIDebugAdvanced->GetThreadContext(&context, sizeof(CONTEXT)); |
|
537 |
||
538 |
// Segment Registers and processor flags |
|
539 |
ptrRegs[REG_INDEX(CS)] = context.SegCs; |
|
540 |
ptrRegs[REG_INDEX(DS)] = context.SegDs; |
|
541 |
ptrRegs[REG_INDEX(ES)] = context.SegEs; |
|
542 |
ptrRegs[REG_INDEX(FS)] = context.SegFs; |
|
543 |
ptrRegs[REG_INDEX(GS)] = context.SegGs; |
|
544 |
ptrRegs[REG_INDEX(SS)] = context.SegSs; |
|
545 |
ptrRegs[REG_INDEX(RFL)] = context.EFlags; |
|
546 |
||
547 |
// Integer registers |
|
548 |
ptrRegs[REG_INDEX(RDI)] = context.Rdi; |
|
549 |
ptrRegs[REG_INDEX(RSI)] = context.Rsi; |
|
550 |
ptrRegs[REG_INDEX(RAX)] = context.Rax; |
|
551 |
ptrRegs[REG_INDEX(RCX)] = context.Rcx; |
|
552 |
ptrRegs[REG_INDEX(RDX)] = context.Rdx; |
|
553 |
ptrRegs[REG_INDEX(RBX)] = context.Rbx; |
|
554 |
ptrRegs[REG_INDEX(RBP)] = context.Rbp; |
|
555 |
ptrRegs[REG_INDEX(RSP)] = context.Rsp; |
|
556 |
||
557 |
ptrRegs[REG_INDEX(R8)] = context.R8; |
|
558 |
ptrRegs[REG_INDEX(R9)] = context.R9; |
|
559 |
ptrRegs[REG_INDEX(R10)] = context.R10; |
|
560 |
ptrRegs[REG_INDEX(R11)] = context.R11; |
|
561 |
ptrRegs[REG_INDEX(R12)] = context.R12; |
|
562 |
ptrRegs[REG_INDEX(R13)] = context.R13; |
|
563 |
ptrRegs[REG_INDEX(R14)] = context.R14; |
|
564 |
ptrRegs[REG_INDEX(R15)] = context.R15; |
|
565 |
||
566 |
// Program counter |
|
567 |
ptrRegs[REG_INDEX(RIP)] = context.Rip; |
|
568 |
#endif |
|
569 |
||
570 |
env->ReleaseLongArrayElements(regs, ptrRegs, JNI_COMMIT); |
|
571 |
CHECK_EXCEPTION_(false); |
|
572 |
||
573 |
env->CallVoidMethod(obj, setThreadIntegerRegisterSet_ID, |
|
574 |
(jlong) ptrThreadIds.asPtr()[t], regs); |
|
575 |
CHECK_EXCEPTION_(false); |
|
576 |
||
577 |
ULONG sysId; |
|
578 |
if (ptrIDebugSystemObjects->GetCurrentThreadSystemId(&sysId) != S_OK) { |
|
579 |
THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: GetCurrentThreadSystemId failed!", false); |
|
580 |
} |
|
581 |
||
582 |
env->CallVoidMethod(obj, addThread_ID, (jlong) sysId); |
|
583 |
CHECK_EXCEPTION_(false); |
|
584 |
} |
|
585 |
||
586 |
return true; |
|
587 |
} |
|
588 |
||
589 |
/* |
|
590 |
* Class: sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal |
|
591 |
* Method: attach0 |
|
592 |
* Signature: (Ljava/lang/String;Ljava/lang/String;)V |
|
593 |
*/ |
|
594 |
JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal_attach0__Ljava_lang_String_2Ljava_lang_String_2 |
|
595 |
(JNIEnv *env, jobject obj, jstring execName, jstring coreFileName) { |
|
596 |
||
597 |
if (getWindbgInterfaces(env, obj) == false) { |
|
598 |
return; |
|
599 |
} |
|
600 |
||
601 |
if (openDumpFile(env, obj, coreFileName) == false) { |
|
602 |
return; |
|
603 |
} |
|
604 |
||
605 |
if (addLoadObjects(env, obj) == false) { |
|
606 |
return; |
|
607 |
} |
|
608 |
||
609 |
if (addThreads(env, obj) == false) { |
|
610 |
return; |
|
611 |
} |
|
612 |
} |
|
613 |
||
614 |
/* |
|
615 |
* Class: sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal |
|
616 |
* Method: attach0 |
|
617 |
* Signature: (I)V |
|
618 |
*/ |
|
619 |
JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal_attach0__I |
|
620 |
(JNIEnv *env, jobject obj, jint pid) { |
|
621 |
||
622 |
if (getWindbgInterfaces(env, obj) == false) { |
|
623 |
return; |
|
624 |
} |
|
625 |
||
626 |
if (attachToProcess(env, obj, pid) == false) { |
|
627 |
return; |
|
628 |
} |
|
629 |
||
630 |
if (addLoadObjects(env, obj) == false) { |
|
631 |
return; |
|
632 |
} |
|
633 |
||
634 |
if (addThreads(env, obj) == false) { |
|
635 |
return; |
|
636 |
} |
|
637 |
} |
|
638 |
||
639 |
||
640 |
static bool releaseWindbgInterfaces(JNIEnv* env, jobject obj) { |
|
641 |
IDebugDataSpaces* ptrIDebugDataSpaces = (IDebugDataSpaces*) env->GetLongField(obj, |
|
642 |
ptrIDebugDataSpaces_ID); |
|
643 |
CHECK_EXCEPTION_(false); |
|
644 |
if (ptrIDebugDataSpaces != 0) { |
|
645 |
ptrIDebugDataSpaces->Release(); |
|
646 |
} |
|
647 |
||
648 |
IDebugOutputCallbacks* ptrIDebugOutputCallbacks = (IDebugOutputCallbacks*) |
|
649 |
env->GetLongField(obj, ptrIDebugOutputCallbacks_ID); |
|
650 |
CHECK_EXCEPTION_(false); |
|
651 |
if (ptrIDebugOutputCallbacks != 0) { |
|
652 |
ptrIDebugOutputCallbacks->Release(); |
|
653 |
} |
|
654 |
||
655 |
IDebugAdvanced* ptrIDebugAdvanced = (IDebugAdvanced*) env->GetLongField(obj, |
|
656 |
ptrIDebugAdvanced_ID); |
|
657 |
CHECK_EXCEPTION_(false); |
|
658 |
||
659 |
if (ptrIDebugAdvanced != 0) { |
|
660 |
ptrIDebugAdvanced->Release(); |
|
661 |
} |
|
662 |
||
663 |
IDebugSymbols* ptrIDebugSymbols = (IDebugSymbols*) env->GetLongField(obj, |
|
664 |
ptrIDebugSymbols_ID); |
|
665 |
CHECK_EXCEPTION_(false); |
|
666 |
if (ptrIDebugSymbols != 0) { |
|
667 |
ptrIDebugSymbols->Release(); |
|
668 |
} |
|
669 |
||
670 |
IDebugSystemObjects* ptrIDebugSystemObjects = (IDebugSystemObjects*) env->GetLongField(obj, |
|
671 |
ptrIDebugSystemObjects_ID); |
|
672 |
CHECK_EXCEPTION_(false); |
|
673 |
if (ptrIDebugSystemObjects != 0) { |
|
674 |
ptrIDebugSystemObjects->Release(); |
|
675 |
} |
|
676 |
||
677 |
IDebugControl* ptrIDebugControl = (IDebugControl*) env->GetLongField(obj, |
|
678 |
ptrIDebugControl_ID); |
|
679 |
CHECK_EXCEPTION_(false); |
|
680 |
if (ptrIDebugControl != 0) { |
|
681 |
ptrIDebugControl->Release(); |
|
682 |
} |
|
683 |
||
684 |
IDebugClient* ptrIDebugClient = (IDebugClient*) env->GetLongField(obj, |
|
685 |
ptrIDebugClient_ID); |
|
686 |
CHECK_EXCEPTION_(false); |
|
687 |
if (ptrIDebugClient != 0) { |
|
688 |
ptrIDebugClient->Release(); |
|
689 |
} |
|
690 |
||
691 |
return true; |
|
692 |
} |
|
693 |
||
694 |
/* |
|
695 |
* Class: sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal |
|
696 |
* Method: detach0 |
|
697 |
* Signature: ()V |
|
698 |
*/ |
|
699 |
JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal_detach0 |
|
700 |
(JNIEnv *env, jobject obj) { |
|
701 |
IDebugClient* ptrIDebugClient = (IDebugClient*) env->GetLongField(obj, |
|
702 |
ptrIDebugClient_ID); |
|
703 |
CHECK_EXCEPTION; |
|
704 |
ptrIDebugClient->DetachProcesses(); |
|
705 |
releaseWindbgInterfaces(env, obj); |
|
706 |
} |
|
707 |
||
708 |
||
709 |
/* |
|
710 |
* Class: sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal |
|
711 |
* Method: readBytesFromProcess0 |
|
712 |
* Signature: (JJ)[B |
|
713 |
*/ |
|
714 |
JNIEXPORT jbyteArray JNICALL Java_sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal_readBytesFromProcess0 |
|
715 |
(JNIEnv *env, jobject obj, jlong address, jlong numBytes) { |
|
716 |
jbyteArray byteArray = env->NewByteArray((long) numBytes); |
|
717 |
CHECK_EXCEPTION_(0); |
|
718 |
||
719 |
jboolean isCopy = JNI_FALSE; |
|
720 |
jbyte* bytePtr = env->GetByteArrayElements(byteArray, &isCopy); |
|
721 |
CHECK_EXCEPTION_(0); |
|
722 |
||
723 |
IDebugDataSpaces* ptrIDebugDataSpaces = (IDebugDataSpaces*) env->GetLongField(obj, |
|
724 |
ptrIDebugDataSpaces_ID); |
|
725 |
CHECK_EXCEPTION_(0); |
|
726 |
||
727 |
ULONG bytesRead; |
|
728 |
if (ptrIDebugDataSpaces->ReadVirtual((ULONG64) address, (PVOID) bytePtr, |
|
729 |
(ULONG)numBytes, &bytesRead) != S_OK) { |
|
730 |
THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: ReadVirtual failed!", 0); |
|
731 |
} |
|
732 |
||
733 |
if (bytesRead != numBytes) { |
|
734 |
return 0; |
|
735 |
} |
|
736 |
||
737 |
env->ReleaseByteArrayElements(byteArray, bytePtr, 0); |
|
738 |
CHECK_EXCEPTION_(0); |
|
739 |
||
740 |
return byteArray; |
|
741 |
} |
|
742 |
||
743 |
/* |
|
744 |
* Class: sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal |
|
745 |
* Method: getThreadIdFromSysId0 |
|
746 |
* Signature: (J)J |
|
747 |
*/ |
|
748 |
JNIEXPORT jlong JNICALL Java_sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal_getThreadIdFromSysId0 |
|
749 |
(JNIEnv *env, jobject obj, jlong sysId) { |
|
750 |
IDebugSystemObjects* ptrIDebugSystemObjects = (IDebugSystemObjects*) env->GetLongField(obj, |
|
751 |
ptrIDebugSystemObjects_ID); |
|
752 |
CHECK_EXCEPTION_(0); |
|
753 |
||
754 |
ULONG id = 0; |
|
755 |
if (ptrIDebugSystemObjects->GetThreadIdBySystemId((ULONG)sysId, &id) != S_OK) { |
|
756 |
THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: GetThreadIdBySystemId failed!", 0); |
|
757 |
} |
|
758 |
||
759 |
return (jlong) id; |
|
760 |
} |
|
761 |
||
762 |
// manage COM 'auto' pointers (to avoid multiple Release |
|
763 |
// calls at every early (exception) returns). Similar to AutoArrayPtr. |
|
764 |
||
765 |
template <class T> |
|
766 |
class AutoCOMPtr { |
|
767 |
T* m_ptr; |
|
768 |
||
769 |
public: |
|
770 |
AutoCOMPtr(T* ptr) : m_ptr(ptr) { |
|
771 |
} |
|
772 |
||
773 |
~AutoCOMPtr() { |
|
774 |
if (m_ptr) { |
|
775 |
m_ptr->Release(); |
|
776 |
} |
|
777 |
} |
|
778 |
||
779 |
T* operator->() { |
|
780 |
return m_ptr; |
|
781 |
} |
|
782 |
}; |
|
783 |
||
784 |
/* |
|
785 |
* Class: sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal |
|
786 |
* Method: consoleExecuteCommand0 |
|
787 |
* Signature: (Ljava/lang/String;)Ljava/lang/String; |
|
788 |
*/ |
|
789 |
JNIEXPORT jstring JNICALL Java_sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal_consoleExecuteCommand0 |
|
790 |
(JNIEnv *env, jobject obj, jstring cmd) { |
|
791 |
jboolean isCopy = JNI_FALSE; |
|
792 |
const char* buf = env->GetStringUTFChars(cmd, &isCopy); |
|
793 |
CHECK_EXCEPTION_(0); |
|
794 |
AutoJavaString command(env, cmd, buf); |
|
795 |
||
796 |
IDebugClient* ptrIDebugClient = (IDebugClient*) env->GetLongField(obj, ptrIDebugClient_ID); |
|
797 |
CHECK_EXCEPTION_(0); |
|
798 |
||
799 |
IDebugClient* tmpClientPtr = 0; |
|
800 |
if (ptrIDebugClient->CreateClient(&tmpClientPtr) != S_OK) { |
|
801 |
THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: CreateClient failed!", 0); |
|
802 |
} |
|
803 |
AutoCOMPtr<IDebugClient> tmpClient(tmpClientPtr); |
|
804 |
||
805 |
IDebugControl* tmpControlPtr = 0; |
|
806 |
if (tmpClient->QueryInterface(__uuidof(IDebugControl), (PVOID*) &tmpControlPtr) != S_OK) { |
|
807 |
THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: QueryInterface (IDebugControl) failed", 0); |
|
808 |
} |
|
809 |
AutoCOMPtr<IDebugControl> tmpControl(tmpControlPtr); |
|
810 |
||
811 |
SAOutputCallbacks* saOutputCallbacks = (SAOutputCallbacks*) env->GetLongField(obj, |
|
812 |
ptrIDebugOutputCallbacks_ID); |
|
813 |
CHECK_EXCEPTION_(0); |
|
814 |
||
815 |
saOutputCallbacks->clearBuffer(); |
|
816 |
||
817 |
if (tmpClient->SetOutputCallbacks(saOutputCallbacks) != S_OK) { |
|
818 |
THROW_NEW_DEBUGGER_EXCEPTION_("Windbg Error: SetOutputCallbacks failed!", 0); |
|
819 |
} |
|
820 |
||
821 |
tmpControl->Execute(DEBUG_OUTPUT_VERBOSE, command, DEBUG_EXECUTE_DEFAULT); |
|
822 |
||
823 |
const char* output = saOutputCallbacks->getBuffer(); |
|
824 |
if (output == 0) { |
|
825 |
output = ""; |
|
826 |
} |
|
827 |
||
828 |
jstring res = env->NewStringUTF(output); |
|
829 |
saOutputCallbacks->clearBuffer(); |
|
830 |
return res; |
|
831 |
} |
|
832 |
||
833 |
/* |
|
834 |
* Class: sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal |
|
835 |
* Method: lookupByName0 |
|
836 |
* Signature: (Ljava/lang/String;Ljava/lang/String;)J |
|
837 |
*/ |
|
838 |
||
839 |
JNIEXPORT jlong JNICALL Java_sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal_lookupByName0 |
|
840 |
(JNIEnv *env, jobject obj, jstring objName, jstring sym) { |
|
841 |
IDebugSymbols* ptrIDebugSymbols = (IDebugSymbols*) env->GetLongField(obj, |
|
842 |
ptrIDebugSymbols_ID); |
|
843 |
CHECK_EXCEPTION_(0); |
|
844 |
||
845 |
jboolean isCopy; |
|
846 |
const char* buf = env->GetStringUTFChars(sym, &isCopy); |
|
847 |
CHECK_EXCEPTION_(0); |
|
848 |
AutoJavaString name(env, sym, buf); |
|
849 |
||
850 |
ULONG64 offset = 0L; |
|
851 |
if (strstr(name, "::") != 0) { |
|
852 |
ptrIDebugSymbols->AddSymbolOptions(SYMOPT_UNDNAME); |
|
853 |
} else { |
|
854 |
ptrIDebugSymbols->RemoveSymbolOptions(SYMOPT_UNDNAME); |
|
855 |
} |
|
856 |
if (ptrIDebugSymbols->GetOffsetByName(name, &offset) != S_OK) { |
|
857 |
return (jlong) 0; |
|
858 |
} |
|
859 |
return (jlong) offset; |
|
860 |
} |
|
861 |
||
862 |
#define SYMBOL_BUFSIZE 512 |
|
863 |
/* |
|
864 |
* Class: sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal |
|
865 |
* Method: lookupByAddress0 |
|
866 |
* Signature: (J)Lsun/jvm/hotspot/debugger/cdbg/ClosestSymbol; |
|
867 |
*/ |
|
868 |
JNIEXPORT jobject JNICALL Java_sun_jvm_hotspot_debugger_windbg_WindbgDebuggerLocal_lookupByAddress0 |
|
869 |
(JNIEnv *env, jobject obj, jlong address) { |
|
870 |
IDebugSymbols* ptrIDebugSymbols = (IDebugSymbols*) env->GetLongField(obj, |
|
871 |
ptrIDebugSymbols_ID); |
|
872 |
CHECK_EXCEPTION_(0); |
|
873 |
||
874 |
ULONG64 disp = 0L; |
|
875 |
char buf[SYMBOL_BUFSIZE]; |
|
876 |
memset(buf, 0, sizeof(buf)); |
|
877 |
||
878 |
if (ptrIDebugSymbols->GetNameByOffset(address, buf, sizeof(buf),0,&disp) |
|
879 |
!= S_OK) { |
|
880 |
return 0; |
|
881 |
} |
|
882 |
||
883 |
jstring sym = env->NewStringUTF(buf); |
|
884 |
CHECK_EXCEPTION_(0); |
|
885 |
jobject res = env->CallObjectMethod(obj, createClosestSymbol_ID, sym, disp); |
|
886 |
CHECK_EXCEPTION_(0); |
|
887 |
return res; |
|
888 |
} |