Mirror of the BLOAT repository
https://www.cs.purdue.edu/homes/hosking/bloat/
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105 lines
2.8 KiB
105 lines
2.8 KiB
/**
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* All files in the distribution of BLOAT (Bytecode Level Optimization and
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* Analysis tool for Java(tm)) are Copyright 1997-2001 by the Purdue
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* Research Foundation of Purdue University. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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package EDU.purdue.cs.bloat.benchmark;
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/**
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* <tt>Stats</tt> is used to run a benchmark using an instrumented Java
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* Virtual machine that counts the number of each kind of bytecodes executed.
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* The counts are maintained in two C variables, <tt>instruction_count</tt>
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* and <tt>redundant_count</tt>.
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*/
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public class Stats {
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static {
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System.loadLibrary("stats");
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}
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public static native void run(Class main, String[] args);
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public static void main(final String[] args) throws Exception {
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int runs = 1;
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int eat = 0;
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if (args.length <= 1) {
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Stats.usage();
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}
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for (eat = 0; eat < args.length; eat++) {
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if (args[eat].equals("-run")) {
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if (++eat >= args.length) {
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Stats.usage();
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}
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runs = Integer.parseInt(args[eat]);
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if (runs <= 0) {
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Stats.usage();
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}
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} else {
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// The main class
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eat++;
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break;
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}
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}
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/* Got all the args. */
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if (eat > args.length) {
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Stats.usage();
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}
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final BenchmarkSecurityManager sec = new BenchmarkSecurityManager();
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System.setSecurityManager(sec);
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final String mainClassName = args[eat - 1];
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final String[] a = new String[args.length - eat];
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System.err.println("Running " + mainClassName);
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for (int i = 0; i < runs; i++) {
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try {
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final Class mainClass = Class.forName(mainClassName);
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System.arraycopy(args, eat, a, 0, a.length);
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Stats.run(mainClass, a);
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} catch (final SecurityException e) {
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continue;
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} catch (final Exception e) {
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e.printStackTrace(System.err);
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sec.allowExit = true;
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System.exit(1);
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}
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}
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sec.allowExit = true;
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}
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private static void usage() {
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System.err.print("usage: java EDU.purdue.cs.bloat.Stats ");
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System.err.println("options class args...");
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System.err.println("where options are one of:");
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System.err.println(" -run n time n runs of the program");
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System.exit(1);
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}
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}
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