test/hotspot/jtreg/vmTestbase/nsk/jvmti/scenarios/bcinstr/BI03/bi03t001/bi03t001.c
changeset 50260 46c67f5e27c2
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/vmTestbase/nsk/jvmti/scenarios/bcinstr/BI03/bi03t001/bi03t001.c	Thu May 24 17:12:15 2018 -0700
@@ -0,0 +1,207 @@
+/*
+ * Copyright (c) 2004, 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 <stdlib.h>
+#include <string.h>
+#include "jni_tools.h"
+#include "agent_common.h"
+#include "jvmti_tools.h"
+
+#define PASSED 0
+#define STATUS_FAILED 2
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* ========================================================================== */
+
+/* scaffold objects */
+static jlong timeout = 0;
+
+/* test objects */
+static jclass debugeeClass = NULL;
+static jbyteArray classBytes = NULL;
+static int ClassFileLoadHookEventFlag = NSK_FALSE;
+
+const char* CLASS_NAME = "nsk/jvmti/scenarios/bcinstr/BI03/bi03t001a";
+
+/* ========================================================================== */
+
+/** callback functions **/
+
+static void JNICALL
+ClassFileLoadHook(jvmtiEnv *jvmti_env, JNIEnv *jni_env,
+        jclass class_being_redefined, 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, CLASS_NAME) == 0)) {
+        ClassFileLoadHookEventFlag = NSK_TRUE;
+        NSK_DISPLAY0("ClassFileLoadHook event\n");
+
+        if (class_being_redefined == NULL) {
+            /* sent by class load */
+
+            if (!NSK_JNI_VERIFY(jni_env, (*new_class_data_len =
+                    NSK_CPP_STUB2(GetArrayLength, jni_env, classBytes)) > 0)) {
+                nsk_jvmti_setFailStatus();
+                return;
+            }
+
+            if (!NSK_JNI_VERIFY(jni_env, (*new_class_data = (unsigned char*)
+                    NSK_CPP_STUB3(GetByteArrayElements, jni_env, classBytes, NULL))
+                        != NULL)) {
+                nsk_jvmti_setFailStatus();
+                return;
+            }
+        }
+    }
+}
+
+/* ========================================================================== */
+
+static int prepare(jvmtiEnv* jvmti, JNIEnv* jni) {
+    const char* DEBUGEE_CLASS_NAME =
+        "nsk/jvmti/scenarios/bcinstr/BI03/bi03t001";
+    jfieldID field = NULL;
+
+    NSK_DISPLAY1("Find class: %s\n", DEBUGEE_CLASS_NAME);
+    if (!NSK_JNI_VERIFY(jni, (debugeeClass =
+            NSK_CPP_STUB2(FindClass, jni, DEBUGEE_CLASS_NAME)) != NULL))
+        return NSK_FALSE;
+
+    if (!NSK_JNI_VERIFY(jni, (debugeeClass =
+            NSK_CPP_STUB2(NewGlobalRef, jni, debugeeClass)) != NULL))
+        return NSK_FALSE;
+
+    if (!NSK_JNI_VERIFY(jni, (field =
+            NSK_CPP_STUB4(GetStaticFieldID, jni, debugeeClass,
+                "newClassBytes", "[B")) != NULL))
+        return NSK_FALSE;
+
+    if (!NSK_JNI_VERIFY(jni, (classBytes = (jbyteArray)
+            NSK_CPP_STUB3(GetStaticObjectField, jni, debugeeClass, field))
+                != NULL))
+        return NSK_FALSE;
+
+    if (!NSK_JNI_VERIFY(jni, (classBytes =
+            NSK_CPP_STUB2(NewGlobalRef, jni, classBytes)) != NULL))
+        return NSK_FALSE;
+
+    if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB4(SetEventNotificationMode,
+            jvmti, JVMTI_ENABLE, JVMTI_EVENT_CLASS_FILE_LOAD_HOOK, NULL)))
+        return JNI_ERR;
+
+    return NSK_TRUE;
+}
+
+/* ========================================================================== */
+
+/** Agent algorithm. */
+static void JNICALL
+agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) {
+
+    if (!nsk_jvmti_waitForSync(timeout))
+        return;
+
+    if (!prepare(jvmti, jni)) {
+        nsk_jvmti_setFailStatus();
+        return;
+    }
+
+    /* resume debugee and wait for sync */
+    if (!nsk_jvmti_resumeSync())
+        return;
+    if (!nsk_jvmti_waitForSync(timeout))
+        return;
+
+    if (!NSK_VERIFY(ClassFileLoadHookEventFlag)) {
+        NSK_COMPLAIN0("Missing ClassFileLoadHook event\n");
+        nsk_jvmti_setFailStatus();
+    }
+
+    if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB4(SetEventNotificationMode,
+            jvmti, JVMTI_DISABLE, JVMTI_EVENT_CLASS_FILE_LOAD_HOOK, NULL)))
+        nsk_jvmti_setFailStatus();
+
+    NSK_TRACE(NSK_CPP_STUB2(DeleteGlobalRef, jni, debugeeClass));
+    NSK_TRACE(NSK_CPP_STUB2(DeleteGlobalRef, jni, classBytes));
+
+    if (!nsk_jvmti_resumeSync())
+        return;
+}
+
+/* ========================================================================== */
+
+/** Agent library initialization. */
+#ifdef STATIC_BUILD
+JNIEXPORT jint JNICALL Agent_OnLoad_bi03t001(JavaVM *jvm, char *options, void *reserved) {
+    return Agent_Initialize(jvm, options, reserved);
+}
+JNIEXPORT jint JNICALL Agent_OnAttach_bi03t001(JavaVM *jvm, char *options, void *reserved) {
+    return Agent_Initialize(jvm, options, reserved);
+}
+JNIEXPORT jint JNI_OnLoad_bi03t001(JavaVM *jvm, char *options, void *reserved) {
+    return JNI_VERSION_1_8;
+}
+#endif
+jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
+    jvmtiEnv* jvmti = NULL;
+    jvmtiEventCallbacks callbacks;
+    jvmtiCapabilities caps;
+
+    NSK_DISPLAY0("Agent_OnLoad\n");
+
+    if (!NSK_VERIFY(nsk_jvmti_parseOptions(options)))
+        return JNI_ERR;
+
+    timeout = nsk_jvmti_getWaitTime() * 60 * 1000;
+
+    if (!NSK_VERIFY((jvmti =
+            nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL))
+        return JNI_ERR;
+
+    memset(&caps, 0, sizeof(caps));
+    caps.can_generate_all_class_hook_events = 1;
+    if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(AddCapabilities, jvmti, &caps)))
+        return JNI_ERR;
+
+    if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL)))
+        return JNI_ERR;
+
+    memset(&callbacks, 0, sizeof(callbacks));
+    callbacks.ClassFileLoadHook = &ClassFileLoadHook;
+    if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB3(SetEventCallbacks,
+            jvmti, &callbacks, sizeof(callbacks))))
+        return JNI_ERR;
+
+    return JNI_OK;
+}
+
+/* ========================================================================== */
+
+#ifdef __cplusplus
+}
+#endif