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src/java.instrument/share/native/libinstrument/InvocationAdapter.c

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rev 12879 : 8136556: Add the ability to perform static builds of MacOSX x64 binaries
Reviewed-by: ihse, bdelsart, gadams, lfoltan, rriggs, hseigel, twisti
   1 /*
   2  * Copyright (c) 2003, 2008, Oracle and/or its affiliates. All rights reserved.
   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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


 124 
 125     /* for retransformClasses testing, set capability to use original method order */
 126     if (getBooleanAttribute(attributes, "Can-Maintain-Original-Method-Order")) {
 127         addOriginalMethodOrderCapability(agent);
 128     }
 129 }
 130 
 131 /*
 132  *  This will be called once for every -javaagent on the command line.
 133  *  Each call to Agent_OnLoad will create its own agent and agent data.
 134  *
 135  *  The argument tail string provided to Agent_OnLoad will be of form
 136  *  <jarfile>[=<options>]. The tail string is split into the jarfile and
 137  *  options components. The jarfile manifest is parsed and the value of the
 138  *  Premain-Class attribute will become the agent's premain class. The jar
 139  *  file is then added to the system class path, and if the Boot-Class-Path
 140  *  attribute is present then all relative URLs in the value are processed
 141  *  to create boot class path segments to append to the boot class path.
 142  */
 143 JNIEXPORT jint JNICALL
 144 Agent_OnLoad(JavaVM *vm, char *tail, void * reserved) {
 145     JPLISInitializationError initerror  = JPLIS_INIT_ERROR_NONE;
 146     jint                     result     = JNI_OK;
 147     JPLISAgent *             agent      = NULL;
 148 
 149     initerror = createNewJPLISAgent(vm, &agent);
 150     if ( initerror == JPLIS_INIT_ERROR_NONE ) {
 151         int             oldLen, newLen;
 152         char *          jarfile;
 153         char *          options;
 154         jarAttribute*   attributes;
 155         char *          premainClass;
 156         char *          bootClassPath;
 157 
 158         /*
 159          * Parse <jarfile>[=options] into jarfile and options
 160          */
 161         if (parseArgumentTail(tail, &jarfile, &options) != 0) {
 162             fprintf(stderr, "-javaagent: memory allocation failure.\n");
 163             return JNI_ERR;
 164         }


 273       break;
 274     }
 275     return result;
 276 }
 277 
 278 /*
 279  * Agent_OnAttach returns a jint. 0/JNI_OK indicates success and non-0
 280  * indicates an error. To allow the attach mechanism throw an
 281  * AgentInitializationException with a reasonable exception message we define
 282  * a few specific errors here.
 283  */
 284 #define AGENT_ERROR_BADJAR    ((jint)100)  /* Agent JAR not found or no Agent-Class attribute */
 285 #define AGENT_ERROR_NOTONCP   ((jint)101)  /* Unable to add JAR file to system class path */
 286 #define AGENT_ERROR_STARTFAIL ((jint)102)  /* No agentmain method or agentmain failed */
 287 
 288 /*
 289  *  This will be called once each time a tool attaches to the VM and loads
 290  *  the JPLIS library.
 291  */
 292 JNIEXPORT jint JNICALL
 293 Agent_OnAttach(JavaVM* vm, char *args, void * reserved) {
 294     JPLISInitializationError initerror  = JPLIS_INIT_ERROR_NONE;
 295     jint                     result     = JNI_OK;
 296     JPLISAgent *             agent      = NULL;
 297     JNIEnv *                 jni_env    = NULL;
 298 
 299     /*
 300      * Need JNIEnv - guaranteed to be called from thread that is already
 301      * attached to VM
 302      */
 303     result = (*vm)->GetEnv(vm, (void**)&jni_env, JNI_VERSION_1_2);
 304     jplis_assert(result==JNI_OK);
 305 
 306     initerror = createNewJPLISAgent(vm, &agent);
 307     if ( initerror == JPLIS_INIT_ERROR_NONE ) {
 308         int             oldLen, newLen;
 309         char *          jarfile;
 310         char *          options;
 311         jarAttribute*   attributes;
 312         char *          agentClass;
 313         char *          bootClassPath;


 418 
 419         if (!success) {
 420             fprintf(stderr, "Agent failed to start!\n");
 421             result = AGENT_ERROR_STARTFAIL;
 422         }
 423 
 424         /*
 425          * Clean-up
 426          */
 427         free(jarfile);
 428         if (options != NULL) free(options);
 429         free(agentClass);
 430         freeAttributes(attributes);
 431     }
 432 
 433     return result;
 434 }
 435 
 436 
 437 JNIEXPORT void JNICALL
 438 Agent_OnUnload(JavaVM *vm) {
 439 }
 440 
 441 
 442 /*
 443  *  JVMTI callback support
 444  *
 445  *  We have two "stages" of callback support.
 446  *  At OnLoad time, we install a VMInit handler.
 447  *  When the VMInit handler runs, we remove the VMInit handler and install a
 448  *  ClassFileLoadHook handler.
 449  */
 450 
 451 void JNICALL
 452 eventHandlerVMInit( jvmtiEnv *      jvmtienv,
 453                     JNIEnv *        jnienv,
 454                     jthread         thread) {
 455     JPLISEnvironment * environment  = NULL;
 456     jboolean           success      = JNI_FALSE;
 457 
 458     environment = getJPLISEnvironment(jvmtienv);


   1 /*
   2  * Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved.
   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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


 124 
 125     /* for retransformClasses testing, set capability to use original method order */
 126     if (getBooleanAttribute(attributes, "Can-Maintain-Original-Method-Order")) {
 127         addOriginalMethodOrderCapability(agent);
 128     }
 129 }
 130 
 131 /*
 132  *  This will be called once for every -javaagent on the command line.
 133  *  Each call to Agent_OnLoad will create its own agent and agent data.
 134  *
 135  *  The argument tail string provided to Agent_OnLoad will be of form
 136  *  <jarfile>[=<options>]. The tail string is split into the jarfile and
 137  *  options components. The jarfile manifest is parsed and the value of the
 138  *  Premain-Class attribute will become the agent's premain class. The jar
 139  *  file is then added to the system class path, and if the Boot-Class-Path
 140  *  attribute is present then all relative URLs in the value are processed
 141  *  to create boot class path segments to append to the boot class path.
 142  */
 143 JNIEXPORT jint JNICALL
 144 DEF_Agent_OnLoad(JavaVM *vm, char *tail, void * reserved) {
 145     JPLISInitializationError initerror  = JPLIS_INIT_ERROR_NONE;
 146     jint                     result     = JNI_OK;
 147     JPLISAgent *             agent      = NULL;
 148 
 149     initerror = createNewJPLISAgent(vm, &agent);
 150     if ( initerror == JPLIS_INIT_ERROR_NONE ) {
 151         int             oldLen, newLen;
 152         char *          jarfile;
 153         char *          options;
 154         jarAttribute*   attributes;
 155         char *          premainClass;
 156         char *          bootClassPath;
 157 
 158         /*
 159          * Parse <jarfile>[=options] into jarfile and options
 160          */
 161         if (parseArgumentTail(tail, &jarfile, &options) != 0) {
 162             fprintf(stderr, "-javaagent: memory allocation failure.\n");
 163             return JNI_ERR;
 164         }


 273       break;
 274     }
 275     return result;
 276 }
 277 
 278 /*
 279  * Agent_OnAttach returns a jint. 0/JNI_OK indicates success and non-0
 280  * indicates an error. To allow the attach mechanism throw an
 281  * AgentInitializationException with a reasonable exception message we define
 282  * a few specific errors here.
 283  */
 284 #define AGENT_ERROR_BADJAR    ((jint)100)  /* Agent JAR not found or no Agent-Class attribute */
 285 #define AGENT_ERROR_NOTONCP   ((jint)101)  /* Unable to add JAR file to system class path */
 286 #define AGENT_ERROR_STARTFAIL ((jint)102)  /* No agentmain method or agentmain failed */
 287 
 288 /*
 289  *  This will be called once each time a tool attaches to the VM and loads
 290  *  the JPLIS library.
 291  */
 292 JNIEXPORT jint JNICALL
 293 DEF_Agent_OnAttach(JavaVM* vm, char *args, void * reserved) {
 294     JPLISInitializationError initerror  = JPLIS_INIT_ERROR_NONE;
 295     jint                     result     = JNI_OK;
 296     JPLISAgent *             agent      = NULL;
 297     JNIEnv *                 jni_env    = NULL;
 298 
 299     /*
 300      * Need JNIEnv - guaranteed to be called from thread that is already
 301      * attached to VM
 302      */
 303     result = (*vm)->GetEnv(vm, (void**)&jni_env, JNI_VERSION_1_2);
 304     jplis_assert(result==JNI_OK);
 305 
 306     initerror = createNewJPLISAgent(vm, &agent);
 307     if ( initerror == JPLIS_INIT_ERROR_NONE ) {
 308         int             oldLen, newLen;
 309         char *          jarfile;
 310         char *          options;
 311         jarAttribute*   attributes;
 312         char *          agentClass;
 313         char *          bootClassPath;


 418 
 419         if (!success) {
 420             fprintf(stderr, "Agent failed to start!\n");
 421             result = AGENT_ERROR_STARTFAIL;
 422         }
 423 
 424         /*
 425          * Clean-up
 426          */
 427         free(jarfile);
 428         if (options != NULL) free(options);
 429         free(agentClass);
 430         freeAttributes(attributes);
 431     }
 432 
 433     return result;
 434 }
 435 
 436 
 437 JNIEXPORT void JNICALL
 438 DEF_Agent_OnUnload(JavaVM *vm) {
 439 }
 440 
 441 
 442 /*
 443  *  JVMTI callback support
 444  *
 445  *  We have two "stages" of callback support.
 446  *  At OnLoad time, we install a VMInit handler.
 447  *  When the VMInit handler runs, we remove the VMInit handler and install a
 448  *  ClassFileLoadHook handler.
 449  */
 450 
 451 void JNICALL
 452 eventHandlerVMInit( jvmtiEnv *      jvmtienv,
 453                     JNIEnv *        jnienv,
 454                     jthread         thread) {
 455     JPLISEnvironment * environment  = NULL;
 456     jboolean           success      = JNI_FALSE;
 457 
 458     environment = getJPLISEnvironment(jvmtienv);


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