test/hotspot/jtreg/vmTestbase/nsk/jvmti/unit/functions/AddToBootstrapClassLoaderSearch/JvmtiTest/JvmtiTest.c - platform/libcore - Git at Google

 /*
  * Copyright (c) 2003, 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 <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include "jvmti.h"
 #include "agent_common.h"

 #ifdef __cplusplus
 extern "C" {
 #endif

 #ifndef JNI_ENV_ARG

 #ifdef __cplusplus
 #define JNI_ENV_ARG(x, y) y
 #define JNI_ENV_ARG1(x)
 #define JNI_ENV_PTR(x) x
 #else
 #define JNI_ENV_ARG(x,y) x, y
 #define JNI_ENV_ARG1(x) x
 #define JNI_ENV_PTR(x) (*x)
 #endif

 #endif

 #define JVMTI_ENV_ARG JNI_ENV_ARG
 #define JVMTI_ENV_ARG1 JNI_ENV_ARG1
 #define JVMTI_ENV_PTR JNI_ENV_PTR

 #define JVMTI_ERROR_CHECK(str,res) if ( res != JVMTI_ERROR_NONE) { printf(str); printf("%d\n",res); return res;}
 #define JVMTI_ERROR_CHECK_EXPECTED_ERROR(str,res,err) if ( res != err) { printf(str); printf("unexpected error %d\n",res); return res;}

 #define JVMTI_ERROR_CHECK_VOID(str,res) if ( res != JVMTI_ERROR_NONE) { printf(str); printf("%d\n",res); iGlobalStatus = 2; }

 #define JVMTI_ERROR_CHECK_EXPECTED_ERROR_VOID(str,res,err) if ( res != err) { printf(str); printf("unexpected error %d\n",res); iGlobalStatus = 2; }

 static jvmtiEnv *jvmti;
 static jint iGlobalStatus = 0;
 static jvmtiCapabilities jvmti_caps;
 static jvmtiEventCallbacks callbacks;
 static int boot_class_count = 0;

 static const char* BOOT_CLASS =
     "nsk/jvmti/unit/functions/AddToBootstrapClassLoaderSearch/Boot";

 static const char* CLASSPATH = "java.class.path";

 static char segment[3000] = ".";

 int printdump = 0;


 void debug_printf(char *fmt, ...) {
     va_list args;

     va_start(args, fmt);
     if (printdump) {
         vprintf(fmt, args);
     }
     va_end(args);
 }


 /*
  * Check that it is not possible to add to the boot class path during the Start phase
  */
 void JNICALL
 vmStart(jvmtiEnv *jvmti, JNIEnv* jni) {
    jvmtiError res;

    debug_printf("VMStart event done\n");

    res = JVMTI_ENV_PTR(jvmti)->AddToBootstrapClassLoaderSearch(JVMTI_ENV_ARG(jvmti, segment));
    JVMTI_ERROR_CHECK_EXPECTED_ERROR_VOID("VMStart: AddToBootstrapClassLoaderSearch returned error ",
       res, JVMTI_ERROR_WRONG_PHASE);
 }

 /*
  * Check that it is possible to add to the boot class path before VMDeath event return.
  */
 void JNICALL
 vmDeath(jvmtiEnv *jvmti, JNIEnv* jni) {
    jvmtiError res;

    debug_printf("VMDeath event done\n");

    res = JVMTI_ENV_PTR(jvmti)->AddToBootstrapClassLoaderSearch(JVMTI_ENV_ARG(jvmti, segment));
    /* In the live phase, anything other than an existing JAR file is an invalid path.
       So, check that JVMTI_ERROR_ILLEGAL_ARGUMENT error is thrown.
    */
    JVMTI_ERROR_CHECK_EXPECTED_ERROR_VOID("VMDeath: AddToBootstrapClassLoaderSearch returned error ",
       res, JVMTI_ERROR_ILLEGAL_ARGUMENT);
 }

 /*
  * Check that it is possible to add to the boot class path during the Live phase
  */
 void JNICALL vmInit(jvmtiEnv *jvmti_env, JNIEnv *env, jthread thread) {
     jvmtiError res;

     debug_printf("VMInit event  done\n");

     res = JVMTI_ENV_PTR(jvmti)->AddToBootstrapClassLoaderSearch(JVMTI_ENV_ARG(jvmti, segment));
     /* In the live phase, anything other than an existing JAR file is an invalid path.
        So, check that JVMTI_ERROR_ILLEGAL_ARGUMENT error is thrown.
     */
     JVMTI_ERROR_CHECK_EXPECTED_ERROR_VOID("VMInit: AddToBootstrapClassLoaderSearch returned error ",
         res, JVMTI_ERROR_ILLEGAL_ARGUMENT);
 }

 /*
  * Check that it is not possible to add to the boot class path during the Primordial phase
  */
 void JNICALL
 NativeMethodBind(jvmtiEnv* jvmti, JNIEnv *jni,
                  jthread thread, jmethodID method,
                  void* address, void** new_address_ptr) {
    jvmtiPhase phase;
    jvmtiError res;

    res = JVMTI_ENV_PTR(jvmti)->GetPhase(JVMTI_ENV_ARG(jvmti, &phase));
    JVMTI_ERROR_CHECK_VOID("GetPhase returned error", res);

    if (phase == JVMTI_PHASE_PRIMORDIAL) {
       debug_printf("Primordial phase\n");

       res = JVMTI_ENV_PTR(jvmti)->AddToBootstrapClassLoaderSearch(JVMTI_ENV_ARG(jvmti, segment));
       JVMTI_ERROR_CHECK_EXPECTED_ERROR_VOID("Primordial: AddToBootstrapClassLoaderSearch returned error ",
          res, JVMTI_ERROR_WRONG_PHASE);
    }
 }


 void JNICALL
 classFileLoadEvent(jvmtiEnv *jvmti_env, JNIEnv *env,
                         jclass redefined_class,
                         jobject loader,const char* name,
                         jobject protection_domain,
                         jint class_data_len,
                         const unsigned char* class_data,
                         jint* new_class_data_len,
                         unsigned char** new_class_data) {

     if (name != NULL && (strcmp(name, BOOT_CLASS) == 0)) {
         debug_printf("Received class file load hook event for class: \n\t%s\n",
             name);
         debug_printf("Received class loader: 0x%p \n", loader);
         /* Check to make sure Boot class got loaded from bootstrap class path.*/

       if (loader == NULL) {
          boot_class_count++;
       }
    }
 }


 void init_callbacks() {
     memset((void *)&callbacks, 0, sizeof(jvmtiEventCallbacks));

     callbacks.VMInit = vmInit;
     callbacks.VMStart = vmStart;
     callbacks.VMDeath = vmDeath;
     callbacks.NativeMethodBind = NativeMethodBind;
     callbacks.ClassFileLoadHook = classFileLoadEvent;
 }


 #ifdef STATIC_BUILD
 JNIEXPORT jint JNICALL Agent_OnLoad_JvmtiTest(JavaVM *jvm, char *options, void *reserved) {
     return Agent_Initialize(jvm, options, reserved);
 }
 JNIEXPORT jint JNICALL Agent_OnAttach_JvmtiTest(JavaVM *jvm, char *options, void *reserved) {
     return Agent_Initialize(jvm, options, reserved);
 }
 JNIEXPORT jint JNI_OnLoad_JvmtiTest(JavaVM *jvm, char *options, void *reserved) {
     return JNI_VERSION_1_8;
 }
 #endif
 jint Agent_Initialize(JavaVM * jvm, char *options, void *reserved) {
     jint res;
     char *idx;

     debug_printf("Agent_OnLoad event done\n");

     if (options && strlen(options) > 0) {
         if (strstr(options, "printdump")) {
             printdump = 1;
         }

         strncpy(segment, options, (size_t) sizeof(segment)/sizeof(char));
         segment[(size_t) sizeof(segment)/sizeof(char) - 1] = 0;
         idx = strchr(segment, ',');
         if (idx != NULL) *idx = 0;
     }

     res = JNI_ENV_PTR(jvm)->
         GetEnv(JNI_ENV_ARG(jvm, (void **) &jvmti), JVMTI_VERSION_1_1);
     if (res < 0) {
         printf("Wrong result of a valid call to GetEnv!\n");
         return JNI_ERR;
     }

     /* Add capabilities */
     res = JVMTI_ENV_PTR(jvmti)->GetPotentialCapabilities(JVMTI_ENV_ARG(jvmti, &jvmti_caps));
     JVMTI_ERROR_CHECK("GetPotentialCapabilities returned error", res);

     res = JVMTI_ENV_PTR(jvmti)->AddCapabilities(JVMTI_ENV_ARG(jvmti, &jvmti_caps));
     JVMTI_ERROR_CHECK("GetAddCapabilities returned error", res);


     /* Enable events */
     init_callbacks();
     res = JVMTI_ENV_PTR(jvmti)->SetEventCallbacks(JVMTI_ENV_ARG(jvmti, &callbacks), sizeof(callbacks));
     JVMTI_ERROR_CHECK("SetEventCallbacks returned error", res);

     res = JVMTI_ENV_PTR(jvmti)->SetEventNotificationMode(JVMTI_ENV_ARG(jvmti,JVMTI_ENABLE),JVMTI_EVENT_VM_START,NULL);
     JVMTI_ERROR_CHECK("SetEventNotificationMode for VM_START returned error", res);

     res = JVMTI_ENV_PTR(jvmti)->SetEventNotificationMode(JVMTI_ENV_ARG(jvmti,JVMTI_ENABLE),JVMTI_EVENT_VM_INIT,NULL);
     JVMTI_ERROR_CHECK("SetEventNotificationMode for VM_INIT returned error", res);

     res = JVMTI_ENV_PTR(jvmti)->SetEventNotificationMode(JVMTI_ENV_ARG(jvmti,JVMTI_ENABLE),JVMTI_EVENT_NATIVE_METHOD_BIND,NULL);
     JVMTI_ERROR_CHECK("SetEventNotificationMode for NATIVE_METHOD_BIND returned error", res);

     res = JVMTI_ENV_PTR(jvmti)->SetEventNotificationMode(JVMTI_ENV_ARG(jvmti,JVMTI_ENABLE),JVMTI_EVENT_VM_DEATH,NULL);
     JVMTI_ERROR_CHECK("SetEventNotificationMode for VM_DEATH returned error", res);

     res = JVMTI_ENV_PTR(jvmti)->SetEventNotificationMode(JVMTI_ENV_ARG(jvmti,JVMTI_ENABLE),JVMTI_EVENT_CLASS_FILE_LOAD_HOOK,NULL);
     JVMTI_ERROR_CHECK("SetEventNotificationMode CLASS_FILE_LOAD_HOOK returned error", res);

     strcat(segment, "/newclass");
     debug_printf("segment=%s\n", segment);
     res = JVMTI_ENV_PTR(jvmti)->AddToBootstrapClassLoaderSearch(JVMTI_ENV_ARG(jvmti, segment));
     JVMTI_ERROR_CHECK("AddToBootStrapClassLoaderSearch returned error", res);

     return JNI_OK;
 }

 JNIEXPORT jint JNICALL
 Java_nsk_jvmti_unit_functions_AddToBootstrapClassLoaderSearch_JvmtiTest_GetResult(JNIEnv * env, jclass cls) {

     if (boot_class_count != 1) {
         printf("Error: no ClassFileLoadHook event for Boot class loaded from bootstrap class path\n");
         iGlobalStatus = 2;
     }
     return iGlobalStatus;
 }


 #ifdef __cplusplus
 }
 #endif
	/*
	* Copyright (c) 2003, 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 <stdio.h>
	#include <stdlib.h>
	#include <string.h>
	#include "jvmti.h"
	#include "agent_common.h"

	#ifdef __cplusplus
	extern "C" {
	#endif

	#ifndef JNI_ENV_ARG

	#ifdef __cplusplus
	#define JNI_ENV_ARG(x, y) y
	#define JNI_ENV_ARG1(x)
	#define JNI_ENV_PTR(x) x
	#else
	#define JNI_ENV_ARG(x,y) x, y
	#define JNI_ENV_ARG1(x) x
	#define JNI_ENV_PTR(x) (*x)
	#endif

	#endif

	#define JVMTI_ENV_ARG JNI_ENV_ARG
	#define JVMTI_ENV_ARG1 JNI_ENV_ARG1
	#define JVMTI_ENV_PTR JNI_ENV_PTR

	#define JVMTI_ERROR_CHECK(str,res) if ( res != JVMTI_ERROR_NONE) { printf(str); printf("%d\n",res); return res;}
	#define JVMTI_ERROR_CHECK_EXPECTED_ERROR(str,res,err) if ( res != err) { printf(str); printf("unexpected error %d\n",res); return res;}

	#define JVMTI_ERROR_CHECK_VOID(str,res) if ( res != JVMTI_ERROR_NONE) { printf(str); printf("%d\n",res); iGlobalStatus = 2; }

	#define JVMTI_ERROR_CHECK_EXPECTED_ERROR_VOID(str,res,err) if ( res != err) { printf(str); printf("unexpected error %d\n",res); iGlobalStatus = 2; }

	static jvmtiEnv *jvmti;
	static jint iGlobalStatus = 0;
	static jvmtiCapabilities jvmti_caps;
	static jvmtiEventCallbacks callbacks;
	static int boot_class_count = 0;

	static const char* BOOT_CLASS =
	"nsk/jvmti/unit/functions/AddToBootstrapClassLoaderSearch/Boot";

	static const char* CLASSPATH = "java.class.path";

	static char segment[3000] = ".";

	int printdump = 0;


	void debug_printf(char *fmt, ...) {
	va_list args;

	va_start(args, fmt);
	if (printdump) {
	vprintf(fmt, args);
	}
	va_end(args);
	}


	/*
	* Check that it is not possible to add to the boot class path during the Start phase
	*/
	void JNICALL
	vmStart(jvmtiEnv jvmti, JNIEnv jni) {
	jvmtiError res;

	debug_printf("VMStart event done\n");

	res = JVMTI_ENV_PTR(jvmti)->AddToBootstrapClassLoaderSearch(JVMTI_ENV_ARG(jvmti, segment));
	JVMTI_ERROR_CHECK_EXPECTED_ERROR_VOID("VMStart: AddToBootstrapClassLoaderSearch returned error ",
	res, JVMTI_ERROR_WRONG_PHASE);
	}

	/*
	* Check that it is possible to add to the boot class path before VMDeath event return.
	*/
	void JNICALL
	vmDeath(jvmtiEnv jvmti, JNIEnv jni) {
	jvmtiError res;

	debug_printf("VMDeath event done\n");

	res = JVMTI_ENV_PTR(jvmti)->AddToBootstrapClassLoaderSearch(JVMTI_ENV_ARG(jvmti, segment));
	/* In the live phase, anything other than an existing JAR file is an invalid path.
	So, check that JVMTI_ERROR_ILLEGAL_ARGUMENT error is thrown.
	*/
	JVMTI_ERROR_CHECK_EXPECTED_ERROR_VOID("VMDeath: AddToBootstrapClassLoaderSearch returned error ",
	res, JVMTI_ERROR_ILLEGAL_ARGUMENT);
	}

	/*
	* Check that it is possible to add to the boot class path during the Live phase
	*/
	void JNICALL vmInit(jvmtiEnv jvmti_env, JNIEnv env, jthread thread) {
	jvmtiError res;

	debug_printf("VMInit event done\n");

	res = JVMTI_ENV_PTR(jvmti)->AddToBootstrapClassLoaderSearch(JVMTI_ENV_ARG(jvmti, segment));
	/* In the live phase, anything other than an existing JAR file is an invalid path.
	So, check that JVMTI_ERROR_ILLEGAL_ARGUMENT error is thrown.
	*/
	JVMTI_ERROR_CHECK_EXPECTED_ERROR_VOID("VMInit: AddToBootstrapClassLoaderSearch returned error ",
	res, JVMTI_ERROR_ILLEGAL_ARGUMENT);
	}

	/*
	* Check that it is not possible to add to the boot class path during the Primordial phase
	*/
	void JNICALL
	NativeMethodBind(jvmtiEnv* jvmti, JNIEnv *jni,
	jthread thread, jmethodID method,
	void* address, void** new_address_ptr) {
	jvmtiPhase phase;
	jvmtiError res;

	res = JVMTI_ENV_PTR(jvmti)->GetPhase(JVMTI_ENV_ARG(jvmti, &phase));
	JVMTI_ERROR_CHECK_VOID("GetPhase returned error", res);

	if (phase == JVMTI_PHASE_PRIMORDIAL) {
	debug_printf("Primordial phase\n");

	res = JVMTI_ENV_PTR(jvmti)->AddToBootstrapClassLoaderSearch(JVMTI_ENV_ARG(jvmti, segment));
	JVMTI_ERROR_CHECK_EXPECTED_ERROR_VOID("Primordial: AddToBootstrapClassLoaderSearch returned error ",
	res, JVMTI_ERROR_WRONG_PHASE);
	}
	}


	void JNICALL
	classFileLoadEvent(jvmtiEnv jvmti_env, JNIEnv env,
	jclass redefined_class,
	jobject loader,const char* name,
	jobject protection_domain,
	jint class_data_len,
	const unsigned char* class_data,
	jint* new_class_data_len,
	unsigned char** new_class_data) {

	if (name != NULL && (strcmp(name, BOOT_CLASS) == 0)) {
	debug_printf("Received class file load hook event for class: \n\t%s\n",
	name);
	debug_printf("Received class loader: 0x%p \n", loader);
	/* Check to make sure Boot class got loaded from bootstrap class path.*/

	if (loader == NULL) {
	boot_class_count++;
	}
	}
	}


	void init_callbacks() {
	memset((void *)&callbacks, 0, sizeof(jvmtiEventCallbacks));

	callbacks.VMInit = vmInit;
	callbacks.VMStart = vmStart;
	callbacks.VMDeath = vmDeath;
	callbacks.NativeMethodBind = NativeMethodBind;
	callbacks.ClassFileLoadHook = classFileLoadEvent;
	}


	#ifdef STATIC_BUILD
	JNIEXPORT jint JNICALL Agent_OnLoad_JvmtiTest(JavaVM jvm, char options, void *reserved) {
	return Agent_Initialize(jvm, options, reserved);
	}
	JNIEXPORT jint JNICALL Agent_OnAttach_JvmtiTest(JavaVM jvm, char options, void *reserved) {
	return Agent_Initialize(jvm, options, reserved);
	}
	JNIEXPORT jint JNI_OnLoad_JvmtiTest(JavaVM jvm, char options, void *reserved) {
	return JNI_VERSION_1_8;
	}
	#endif
	jint Agent_Initialize(JavaVM * jvm, char options, void reserved) {
	jint res;
	char *idx;

	debug_printf("Agent_OnLoad event done\n");

	if (options && strlen(options) > 0) {
	if (strstr(options, "printdump")) {
	printdump = 1;
	}

	strncpy(segment, options, (size_t) sizeof(segment)/sizeof(char));
	segment[(size_t) sizeof(segment)/sizeof(char) - 1] = 0;
	idx = strchr(segment, ',');
	if (idx != NULL) *idx = 0;
	}

	res = JNI_ENV_PTR(jvm)->
	GetEnv(JNI_ENV_ARG(jvm, (void **) &jvmti), JVMTI_VERSION_1_1);
	if (res < 0) {
	printf("Wrong result of a valid call to GetEnv!\n");
	return JNI_ERR;
	}

	/* Add capabilities */
	res = JVMTI_ENV_PTR(jvmti)->GetPotentialCapabilities(JVMTI_ENV_ARG(jvmti, &jvmti_caps));
	JVMTI_ERROR_CHECK("GetPotentialCapabilities returned error", res);

	res = JVMTI_ENV_PTR(jvmti)->AddCapabilities(JVMTI_ENV_ARG(jvmti, &jvmti_caps));
	JVMTI_ERROR_CHECK("GetAddCapabilities returned error", res);


	/* Enable events */
	init_callbacks();
	res = JVMTI_ENV_PTR(jvmti)->SetEventCallbacks(JVMTI_ENV_ARG(jvmti, &callbacks), sizeof(callbacks));
	JVMTI_ERROR_CHECK("SetEventCallbacks returned error", res);

	res = JVMTI_ENV_PTR(jvmti)->SetEventNotificationMode(JVMTI_ENV_ARG(jvmti,JVMTI_ENABLE),JVMTI_EVENT_VM_START,NULL);
	JVMTI_ERROR_CHECK("SetEventNotificationMode for VM_START returned error", res);

	res = JVMTI_ENV_PTR(jvmti)->SetEventNotificationMode(JVMTI_ENV_ARG(jvmti,JVMTI_ENABLE),JVMTI_EVENT_VM_INIT,NULL);
	JVMTI_ERROR_CHECK("SetEventNotificationMode for VM_INIT returned error", res);

	res = JVMTI_ENV_PTR(jvmti)->SetEventNotificationMode(JVMTI_ENV_ARG(jvmti,JVMTI_ENABLE),JVMTI_EVENT_NATIVE_METHOD_BIND,NULL);
	JVMTI_ERROR_CHECK("SetEventNotificationMode for NATIVE_METHOD_BIND returned error", res);

	res = JVMTI_ENV_PTR(jvmti)->SetEventNotificationMode(JVMTI_ENV_ARG(jvmti,JVMTI_ENABLE),JVMTI_EVENT_VM_DEATH,NULL);
	JVMTI_ERROR_CHECK("SetEventNotificationMode for VM_DEATH returned error", res);

	res = JVMTI_ENV_PTR(jvmti)->SetEventNotificationMode(JVMTI_ENV_ARG(jvmti,JVMTI_ENABLE),JVMTI_EVENT_CLASS_FILE_LOAD_HOOK,NULL);
	JVMTI_ERROR_CHECK("SetEventNotificationMode CLASS_FILE_LOAD_HOOK returned error", res);

	strcat(segment, "/newclass");
	debug_printf("segment=%s\n", segment);
	res = JVMTI_ENV_PTR(jvmti)->AddToBootstrapClassLoaderSearch(JVMTI_ENV_ARG(jvmti, segment));
	JVMTI_ERROR_CHECK("AddToBootStrapClassLoaderSearch returned error", res);

	return JNI_OK;
	}

	JNIEXPORT jint JNICALL
	Java_nsk_jvmti_unit_functions_AddToBootstrapClassLoaderSearch_JvmtiTest_GetResult(JNIEnv * env, jclass cls) {

	if (boot_class_count != 1) {
	printf("Error: no ClassFileLoadHook event for Boot class loaded from bootstrap class path\n");
	iGlobalStatus = 2;
	}
	return iGlobalStatus;
	}


	#ifdef __cplusplus
	}
	#endif