| /* |
| * 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 "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_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 |
| |
| typedef struct { |
| jlocation start; |
| jlocation end; |
| } info; |
| |
| static jvmtiEnv *jvmti; |
| static jint result = PASSED; |
| static info meth_tab[] = { |
| {0, 4}, /* 0 <init> */ |
| {0, 0}, /* 1 meth1 */ |
| {0, 5} /* 2 meth2 */ |
| }; |
| |
| void checkMeth(JNIEnv *env, jclass cl, char *name, char *sig, |
| int stat, int meth_ind) { |
| jvmtiError ans; |
| int err = 0; |
| jmethodID mid; |
| jlocation start; |
| jlocation end; |
| jlocation exp_start = meth_tab[meth_ind].start; |
| jlocation exp_end = meth_tab[meth_ind].end; |
| |
| if (stat) { |
| mid = JNI_ENV_PTR(env)-> |
| GetStaticMethodID(JNI_ENV_ARG(env, cl), name, sig); |
| } else { |
| mid = JNI_ENV_PTR(env)->GetMethodID(JNI_ENV_ARG(env, cl), name, sig); |
| } |
| if (mid == NULL) { |
| printf("Name = %s, sig = %s: mid = NULL\n", name, sig); |
| result = STATUS_FAILED; |
| return; |
| } |
| ans = (*jvmti)->GetMethodLocation(jvmti, mid, &start, &end); |
| if (ans != JVMTI_ERROR_NONE) { |
| printf("Name = %s, sig = %s:\n", name, sig); |
| printf(" Failed get method location: err = %d\n", ans); |
| result = STATUS_FAILED; |
| return; |
| } |
| if (start != exp_start) { |
| result = STATUS_FAILED; |
| err = 1; |
| printf("Name = %s, sig = %s:\n", name, sig); |
| printf(" first location expected: 0x%x, got: 0x%08x%08x\n", |
| (jint)exp_start, (jint)(start >> 32), (jint)start); |
| } |
| if (end != exp_end) { |
| result = STATUS_FAILED; |
| if (!err) { |
| printf("Name = %s, sig = %s:\n", name, sig); |
| } |
| printf(" last location expected: 0x%x, got: 0x%08x%08x\n", |
| (jint)exp_end, (jint)(end >> 32), (jint)end); |
| } |
| } |
| |
| #ifdef STATIC_BUILD |
| JNIEXPORT jint JNICALL Agent_OnLoad_methloc001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNICALL Agent_OnAttach_methloc001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNI_OnLoad_methloc001(JavaVM *jvm, char *options, void *reserved) { |
| return JNI_VERSION_1_8; |
| } |
| #endif |
| jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) { |
| jint res; |
| |
| 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; |
| } |
| |
| return JNI_OK; |
| } |
| |
| JNIEXPORT jint JNICALL Java_nsk_jvmti_GetMethodLocation_methloc001_check(JNIEnv *env, jclass cls) { |
| checkMeth(env, cls, "<init>", "()V", 0, 0); |
| checkMeth(env, cls, "meth1", "()V", 0, 1); |
| checkMeth(env, cls, "meth2", "(I)[F", 1, 2); |
| return result; |
| } |
| |
| #ifdef __cplusplus |
| } |
| #endif |