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8156560: Remove AddJsum

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Reviewed-by: alanb, erikj
This commit is contained in:
Claes Redestad 2016-05-10 13:33:31 +02:00
parent 553aa43136
commit 91cb8b5fc8
2 changed files with 0 additions and 99 deletions
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4
jdk/make/Tools.gmk
View File

@ -37,10 +37,6 @@ BUILD_TOOLS_JDK := $(call SetupJavaCompilationCompileTarget, \
################################################################################
# Add a checksum ("jsum") to the end of a text file. Prevents trivial tampering with class lists.
TOOL_ADDJSUM = $(JAVA_SMALL) -cp $(BUILDTOOLS_OUTPUTDIR)/jdk_tools_classes \
build.tools.addjsum.AddJsum
ifeq ($(BOOT_JDK_MODULAR), true)
COMPILEFONTCONFIG_ADD_EXPORTS := -XaddExports:java.desktop/sun.awt=ALL-UNNAMED
endif

95
jdk/make/src/classes/build/tools/addjsum/AddJsum.java
View File

@ -1,95 +0,0 @@
/*
* Copyright (c) 2003, 2013, 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. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package build.tools.addjsum;
import java.io.*;
import java.util.regex.*;
/** Adds a checksum ("jsum") to the end of a text file. The algorithm
used is known to the JVM and prevents trivial tampering with the
class list used for class data sharing.
*/
public class AddJsum {
private static final long JSUM_SEED = 0xCAFEBABEBABECAFEL;
public static void main(String[] args) throws Exception {
if (args.length != 2) {
System.err.println("Usage: java AddJsum [input file name] [output file name]");
System.exit(1);
}
try {
File inFile = new File(args[0]);
File outFile = new File(args[1]);
BufferedReader reader = new BufferedReader(new FileReader(inFile));
BufferedWriter writer = new BufferedWriter(new FileWriter(outFile));
Pattern p = Pattern.compile("# [0-9A-Fa-f]*");
long computedJsum = JSUM_SEED;
String line = null;
while ((line = reader.readLine()) != null) {
if (line.length() > 0 && line.charAt(0) == '#') {
Matcher m = p.matcher(line);
if (!m.matches()) {
writer.write(line);
writer.newLine();
}
} else {
computedJsum = jsum(computedJsum, line);
writer.write(line);
writer.newLine();
}
}
String hex = Long.toHexString(computedJsum);
int diff = 16 - hex.length();
for (int i = 0; i < diff; i++) {
hex = "0" + hex;
}
writer.write("# " + hex);
writer.newLine();
reader.close();
writer.close();
} catch (IOException e) {
System.err.println("Error reading or writing file");
throw(e);
}
}
private static long jsum(long start, String str) {
long h = start;
int len = str.length();
for (int i = 0; i < len; i++) {
char c = str.charAt(i);
if (c <= ' ') {
/* Skip spaces and control characters */
continue;
}
h = 31 * h + c;
}
return h;
}
}