| /* |
| * 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 <string.h> |
| #include "jvmti.h" |
| #include "agent_common.h" |
| #include "JVMTITools.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #ifndef JNI_ENV_ARG |
| |
| #ifdef __cplusplus |
| #define JNI_ENV_ARG(x, y) y |
| #define JNI_ENV_PTR(x) x |
| #else |
| #define JNI_ENV_ARG(x,y) x, y |
| #define JNI_ENV_PTR(x) (*x) |
| #endif |
| |
| #endif |
| |
| #define PASSED 0 |
| #define STATUS_FAILED 2 |
| #define JVM_ACC_SYNTHETIC 0x1000 |
| |
| static jvmtiEnv *jvmti = NULL; |
| static jvmtiCapabilities caps; |
| static jint result = PASSED; |
| static jboolean printdump = JNI_FALSE; |
| |
| #ifdef STATIC_BUILD |
| JNIEXPORT jint JNICALL Agent_OnLoad_issynth001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNICALL Agent_OnAttach_issynth001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNI_OnLoad_issynth001(JavaVM *jvm, char *options, void *reserved) { |
| return JNI_VERSION_1_8; |
| } |
| #endif |
| jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) { |
| jint res; |
| jvmtiError err; |
| |
| if (options != NULL && strcmp(options, "printdump") == 0) { |
| printdump = JNI_TRUE; |
| } |
| |
| res = JNI_ENV_PTR(jvm)->GetEnv(JNI_ENV_ARG(jvm, (void **) &jvmti), |
| JVMTI_VERSION_1_1); |
| if (res != JNI_OK || jvmti == NULL) { |
| printf("Wrong result of a valid call to GetEnv!\n"); |
| return JNI_ERR; |
| } |
| |
| err = (*jvmti)->GetPotentialCapabilities(jvmti, &caps); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("(GetPotentialCapabilities) unexpected error: %s (%d)\n", |
| TranslateError(err), err); |
| return JNI_ERR; |
| } |
| |
| err = (*jvmti)->AddCapabilities(jvmti, &caps); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("(AddCapabilities) unexpected error: %s (%d)\n", |
| TranslateError(err), err); |
| return JNI_ERR; |
| } |
| |
| err = (*jvmti)->GetCapabilities(jvmti, &caps); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("(GetCapabilities) unexpected error: %s (%d)\n", |
| TranslateError(err), err); |
| return JNI_ERR; |
| } |
| |
| if (!caps.can_get_synthetic_attribute) { |
| printf("Warning: IsMethodSynthetic is not implemented\n"); |
| } |
| |
| return JNI_OK; |
| } |
| |
| char const *jbooleanToString(jboolean flag) { |
| return ((flag == JNI_TRUE) ? "true" : "false"); |
| } |
| |
| JNIEXPORT jint JNICALL |
| checkClassMethods(jclass klass) { |
| jvmtiError err; |
| jmethodID mid; |
| jboolean isSynthetic; |
| jint meth_cnt = 0; |
| jmethodID* methods_ptr = NULL; |
| char* name_ptr = NULL; |
| char* sign_ptr = NULL; |
| int i; |
| |
| err = (*jvmti)->GetClassMethods(jvmti, klass, &meth_cnt, &methods_ptr); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("GetClassMethods unexpected error: %s (%d)\n", |
| TranslateError(err), err); |
| return STATUS_FAILED; |
| } |
| |
| for (i = 0; i < meth_cnt; i++) { |
| jint mods; |
| mid = methods_ptr[i]; |
| err = (*jvmti)->GetMethodName(jvmti, mid, &name_ptr, |
| &sign_ptr, (char **) NULL); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("(GetMethodName#%d) unexpected error: %s (%d)\n", |
| i, TranslateError(err), err); |
| return STATUS_FAILED; |
| } |
| |
| printf("Method # %d; name: %s, signature: %s\n", i, name_ptr, sign_ptr); |
| err = (*jvmti)->IsMethodSynthetic(jvmti, mid, &isSynthetic); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("(IsMethodSynthetic#%d) unexpected error: %s (%d)\n", |
| i, TranslateError(err), err); |
| result = STATUS_FAILED; |
| continue; |
| } |
| |
| err = (*jvmti)->GetMethodModifiers(jvmti, mid, &mods); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("(GetMethodModifiers#%d) unexpected error: %s (%d)\n", |
| i, TranslateError(err), err); |
| result = STATUS_FAILED; |
| continue; |
| } |
| printf("\tACC_SYNTHETIC bit: %d\n", ((mods & JVM_ACC_SYNTHETIC) != 0)); |
| if ((mods & JVM_ACC_SYNTHETIC) && isSynthetic) { |
| printf("\tIsMethodSynthetic result and ACC_SYNTHETIC bit are matched\n"); |
| } else if ((mods & JVM_ACC_SYNTHETIC) || isSynthetic) { |
| printf("Failure: IsMethodSynthetic result and ACC_SYNTHETIC bit don't match\n"); |
| result = STATUS_FAILED; |
| continue; |
| } |
| } |
| printf("\n"); |
| return result; |
| } |
| |
| JNIEXPORT jint JNICALL |
| checkClassFields(jclass klass) { |
| jvmtiError err; |
| jfieldID fid; |
| jboolean isSynthetic; |
| jint fld_cnt = 0; |
| jfieldID* fields_ptr = NULL; |
| char* name_ptr = NULL; |
| char* sign_ptr = NULL; |
| int i; |
| |
| if (jvmti == NULL) { |
| printf("JVMTI client was not properly loaded!\n"); |
| return STATUS_FAILED; |
| } |
| |
| err = (*jvmti)->GetClassFields(jvmti, klass, &fld_cnt, &fields_ptr); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("GetClassFields unexpected error: %s (%d)\n", |
| TranslateError(err), err); |
| return STATUS_FAILED; |
| } |
| |
| for (i = 0; i < fld_cnt; i++) { |
| jint mods; |
| fid = fields_ptr[i]; |
| err = (*jvmti)->GetFieldName(jvmti, klass, fid, &name_ptr, |
| &sign_ptr, (char **) NULL); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("(GetFieldName#%d) unexpected error: %s (%d)\n", |
| i, TranslateError(err), err); |
| return STATUS_FAILED; |
| } |
| |
| printf("Field # %d; name: %s, signature: %s\n", i, name_ptr, sign_ptr); |
| err = (*jvmti)->IsFieldSynthetic(jvmti, klass, fid, &isSynthetic); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("(IsFieldSynthetic#%d) unexpected error: %s (%d)\n", |
| i, TranslateError(err), err); |
| result = STATUS_FAILED; |
| continue; |
| } |
| |
| err = (*jvmti)->GetFieldModifiers(jvmti, klass, fid, &mods); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("(GetFieldModifiers#%d) unexpected error: %s (%d)\n", |
| i, TranslateError(err), err); |
| result = STATUS_FAILED; |
| continue; |
| } |
| printf("\tACC_SYNTHETIC bit: %d\n", ((mods & JVM_ACC_SYNTHETIC) != 0)); |
| if ((mods & JVM_ACC_SYNTHETIC) && isSynthetic) { |
| printf("\tIsFieldSynthetic result and ACC_SYNTHETIC bit are matched\n"); |
| } else if ((mods & JVM_ACC_SYNTHETIC) || isSynthetic) { |
| printf("Failure: IsFieldSynthetic result and ACC_SYNTHETIC bit don't match\n"); |
| result = STATUS_FAILED; |
| continue; |
| } |
| } |
| |
| return result; |
| } |
| |
| JNIEXPORT jint JNICALL |
| Java_nsk_jvmti_unit_IsSynthetic_issynth001_check(JNIEnv *env, |
| jclass cls, jclass klass) { |
| |
| jvmtiError err; |
| char* class_sign = NULL; |
| |
| if (!caps.can_get_synthetic_attribute) { |
| return result; |
| } |
| |
| err = (*jvmti)->GetClassSignature(jvmti, cls, &class_sign, (char **) NULL); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("GetSourceFileName unexpected error: %s (%d)\n", |
| TranslateError(err), err); |
| result = STATUS_FAILED; |
| return result; |
| } else { |
| printf("Class signature: %s\n", class_sign); |
| } |
| |
| /* |
| * The following synthetic methods are expected: |
| * Name: class$, Signature: (Ljava/lang/String;)Ljava/lang/Class; |
| * Name: access$000, Signature: (Lnsk/jvmti/unit/IsMethodSynthetic/issynth001;)I |
| */ |
| |
| result = checkClassMethods(cls); |
| if (result != PASSED) { |
| return result; |
| } |
| |
| err = (*jvmti)->GetClassSignature(jvmti, klass, &class_sign, (char **) NULL); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("GetSourceFileName unexpected error: %s (%d)\n", |
| TranslateError(err), err); |
| result = STATUS_FAILED; |
| return result; |
| } else { |
| printf("Class signature: %s\n", class_sign); |
| } |
| |
| /* Just a sanity check of methods of Inner class. |
| * No synthetic methods are expected here. |
| */ |
| result = checkClassMethods(klass); |
| if (result != PASSED) { |
| return result; |
| } |
| |
| /* Check of fields of Inner class. |
| * Just one synthetic field is expected here: |
| * Name: this$0, Signature: Lnsk/jvmti/unit/IsSynthetic/issynth001; |
| */ |
| result = checkClassFields(klass); |
| |
| return result; |
| } |
| |
| JNIEXPORT jint JNICALL Java_issynth001_getRes(JNIEnv *env, jclass cls) { |
| return result; |
| } |
| |
| #ifdef __cplusplus |
| } |
| #endif |
