Initial load
diff --git a/src/share/instrument/Utilities.c b/src/share/instrument/Utilities.c
new file mode 100644
index 0000000..120b30a
--- /dev/null
+++ b/src/share/instrument/Utilities.c
@@ -0,0 +1,108 @@
+/*
+ * Copyright 2003 Sun Microsystems, Inc. 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. Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * Copyright 2003 Wily Technology, Inc.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "JPLISAssert.h"
+#include "Utilities.h"
+#include "JavaExceptions.h"
+
+/*
+ * This module provides various simple JNI and JVMTI utility functionality.
+ */
+
+void *
+allocate(jvmtiEnv * jvmtienv, size_t bytecount) {
+ void * resultBuffer = NULL;
+ jvmtiError error = JVMTI_ERROR_NONE;
+
+ error = (*jvmtienv)->Allocate(jvmtienv,
+ bytecount,
+ (unsigned char**) &resultBuffer);
+ jplis_assert(error == JVMTI_ERROR_NONE);
+ if ( error != JVMTI_ERROR_NONE ) {
+ resultBuffer = NULL;
+ }
+ return resultBuffer;
+}
+
+/**
+ * Convenience method that deallocates memory.
+ * Throws assert on error.
+ * JVMTI Deallocate can only fail due to internal error, that is, this
+ * agent has done something wrong or JVMTI has done something wrong. These
+ * errors aren't interesting to a JPLIS agent and so are not returned.
+ */
+void
+deallocate(jvmtiEnv * jvmtienv, void * buffer) {
+ jvmtiError error = JVMTI_ERROR_NONE;
+
+ error = (*jvmtienv)->Deallocate(jvmtienv,
+ (unsigned char*)buffer);
+ jplis_assert_msg(error == JVMTI_ERROR_NONE, "Can't deallocate memory");
+ return;
+}
+
+/**
+ * Returns whether the passed exception is an instance of the given classname
+ * Clears any JNI exceptions before returning
+ */
+jboolean
+isInstanceofClassName( JNIEnv * jnienv,
+ jobject instance,
+ const char * className) {
+ jboolean isInstanceof = JNI_FALSE;
+ jboolean errorOutstanding = JNI_FALSE;
+ jclass classHandle = NULL;
+
+ jplis_assert(isSafeForJNICalls(jnienv));
+
+ /* get an instance of unchecked exception for instanceof comparison */
+ classHandle = (*jnienv)->FindClass(jnienv, className);
+ errorOutstanding = checkForAndClearThrowable(jnienv);
+ jplis_assert(!errorOutstanding);
+
+ if (!errorOutstanding) {
+ isInstanceof = (*jnienv)->IsInstanceOf(jnienv, instance, classHandle);
+ errorOutstanding = checkForAndClearThrowable(jnienv);
+ jplis_assert(!errorOutstanding);
+ }
+
+ jplis_assert(isSafeForJNICalls(jnienv));
+ return isInstanceof;
+}
+
+/* We don't come back from this
+*/
+void
+abortJVM( JNIEnv * jnienv,
+ const char * message) {
+ (*jnienv)->FatalError(jnienv, message);
+}