jdk8-mips64-public/hotspot: src/share/vm/prims/jvmtiEnvFill.java@710a3c8b516e (annotated)

src/share/vm/prims/jvmtiEnvFill.java@710a3c8b516e (annotated)

src/share/vm/prims/jvmtiEnvFill.java

Tue, 08 Aug 2017 15:57:29 +0800

author: aoqi
date: Tue, 08 Aug 2017 15:57:29 +0800
changeset 6876: 710a3c8b516e
parent 1907: c18cbe5936b8
parent 0: f90c822e73f8
permissions: -rw-r--r--

merge

 /*
  * Copyright (c) 2003, 2005, 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.
  *
  */
 import java.io.*;
 import java.util.*;
 class jvmtiEnvFill {
     public static void main(String[] args) throws IOException {
         if (args.length != 3) {
             System.err.println("usage: <filledFile> <stubFile> <resultFile>");
             System.exit(1);
         }
         String filledFN = args[0];
         String stubFN = args[1];
         String resultFN = args[2];
         SourceFile filledSF = new SourceFile(filledFN);
         SourceFile stubSF = new SourceFile(stubFN);
         stubSF.fill(filledSF);
         PrintWriter out = new PrintWriter(new FileWriter(resultFN));
         stubSF.output(out);
         out.close();
     }
 }
 class SourceFile {
     static final String endFilePrefix = "// end file prefix";
     static final String functionPrefix = "JvmtiEnv::";
     final String fn;
     LineNumberReader in;
     String line;
     List<String> top = new ArrayList<String>();
     List<String> before = new ArrayList<String>();
     boolean inFilePrefix = true;
     List<Function> functions = new ArrayList<Function>();
     Map<String, Function> functionMap = new HashMap<String, Function>();
     class Function {
       String name;
       String args;
       String compareArgs;
       List comment;
       List<String> body = new ArrayList<String>();
       Function() throws IOException {
         line = in.readLine();
         String trimmed = line.trim();
         if (!trimmed.startsWith(functionPrefix)) {
             error("expected '" + functionPrefix + "'");
         }
         int index = trimmed.indexOf('(', functionPrefix.length());
         if (index == -1) {
             error("missing open paren");
         }
         name = trimmed.substring(functionPrefix.length(), index);
         int index2 = trimmed.indexOf(')', index);
         if (index2 == -1) {
             error("missing close paren - must be on same line");
         }
         args = trimmed.substring(index+1, index2);
         compareArgs = args.replaceAll("\\s", "");
         String tail = trimmed.substring(index2+1).trim();
         if (!tail.equals("{")) {
             error("function declaration first line must end with open bracket '{', instead got '" +
                    tail + "'");
         }
         while(true) {
             line = in.readLine();
             if (line == null) {
                 line = ""; // so error does not look wierd
                 error("unexpected end of file");
             }
             if (line.startsWith("}")) {
                 break;
             }
             body.add(line);
         }
         String expected = "} /* end " + name + " */";
         trimmed = line.replaceAll("\\s","");
         if (!trimmed.equals(expected.replaceAll("\\s",""))) {
             error("function end is malformed - should be: " + expected);
         }
         // copy over the comment prefix
         comment = before;
         before = new ArrayList<String>();
       }
       void remove() {
         functionMap.remove(name);
       }
       String fileName() {
         return fn;
       }
       void fill(Function filledFunc) {
         if (filledFunc == null) {
             System.err.println("Warning: function " + name + " missing from filled file");
             body.add(0, "    /*** warning: function added and not filled in ***/");
         } else {
             int fbsize = filledFunc.body.size();
             int bsize = body.size();
             if (fbsize > bsize  || !body.subList(bsize-fbsize,bsize).equals(filledFunc.body)) {
                 // it has actually been filled in
                 body = filledFunc.body;
                 if (!compareArgs.equals(filledFunc.compareArgs)) {
                     System.err.println("Warning: function " + name +
                                        ": filled and stub arguments differ");
                     System.err.println("  old (filled): " + filledFunc.args);
                     System.err.println("  new (stub): " + args);
                     body.add(0, "    /*** warning: arguments changed, were: " +
                              filledFunc.args + " ***/");
                 }
             }
             filledFunc.remove();  // mark used
         }
       }
       void output(PrintWriter out) {
             Iterator it = comment.iterator();
             while (it.hasNext()) {
                 out.println(it.next());
             }
             out.println("jvmtiError");
             out.print(functionPrefix);
             out.print(name);
             out.print('(');
             out.print(args);
             out.println(") {");
             it = body.iterator();
             while (it.hasNext()) {
                 out.println(it.next());
             }
             out.print("} /* end ");
             out.print(name);
             out.println(" */");
       }
     }
     SourceFile(String fn) throws IOException {
         this.fn = fn;
         Reader reader = new FileReader(fn);
         in = new LineNumberReader(reader);
         while (readGaps()) {
             Function func = new Function();
             functionMap.put(func.name, func);
             functions.add(func);
         }
         in.close();
     }
     void error(String msg) {
         System.err.println("Fatal error parsing file: " + fn);
         System.err.println("Line number: " + in.getLineNumber());
         System.err.println("Error message: " + msg);
         System.err.println("Source line: " + line);
         System.exit(1);
     }
     boolean readGaps() throws IOException {
         while(true) {
             line = in.readLine();
             if (line == null) {
                 return false; // end of file
             }
             if (!inFilePrefix && line.startsWith("}")) {
                 error("unexpected close bracket in first column, outside of function.\n");
             }
             String trimmed = line.trim();
             if (line.startsWith("jvmtiError")) {
                 if (trimmed.equals("jvmtiError")) {
                     if (inFilePrefix) {
                         error("unexpected 'jvmtiError' line in file prefix.\n" +
                               "is '" + endFilePrefix + "'... line missing?");
                     }
                     return true; // beginning of a function
                 } else {
                     error("extra characters at end of 'jvmtiError'");
                 }
             }
             if (inFilePrefix) {
                 top.add(line);
             } else {
                 trimmed = line.trim();
                 if (!trimmed.equals("") && !trimmed.startsWith("//") && !trimmed.startsWith("#")) {
                     error("only comments and blank lines allowed between functions");
                 }
                 before.add(line);
             }
             if (line.replaceAll("\\s","").toLowerCase().startsWith(endFilePrefix.replaceAll("\\s",""))) {
                 if (!inFilePrefix) {
                     error("excess '" + endFilePrefix + "'");
                 }
                 inFilePrefix = false;
             }
         }
     }
     void fill(SourceFile filledSF) {
         // copy beginning of file straight from filled file
         top = filledSF.top;
         // file in functions
         Iterator it = functions.iterator();
         while (it.hasNext()) {
             Function stubFunc = (Function)(it.next());
             Function filledFunc = (Function)filledSF.functionMap.get(stubFunc.name);
             stubFunc.fill(filledFunc);
         }
         if (filledSF.functionMap.size() > 0) {
             System.err.println("Warning: the following functions were present in the " +
                                 "filled file but missing in the stub file and thus not copied:");
             it  = filledSF.functionMap.values().iterator();
             while (it.hasNext()) {
                 System.err.println("        " + ((Function)(it.next())).name);
             }
         }
     }
     void output(PrintWriter out) {
         Iterator it = top.iterator();
         while (it.hasNext()) {
             out.println(it.next());
         }
         it = functions.iterator();
         while (it.hasNext()) {
             Function stubFunc = (Function)(it.next());
             stubFunc.output(out);
         }
     }
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/prims/jvmtiEnvFill.java@710a3c8b516e (annotated)

src/share/vm/prims/jvmtiEnvFill.java