1 /*
2 * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 /**
26 * A SAX based parser of LogCompilation output from HotSpot. It takes a complete
27 * @author never
28 */
29
30 package com.sun.hotspot.tools.compiler;
31
32 import java.io.FileReader;
33 import java.io.Reader;
34 import java.util.ArrayList;
35 import java.util.Collections;
36 import java.util.Comparator;
37 import java.util.HashMap;
38 import java.util.LinkedHashMap;
39 import java.util.Stack;
40 import javax.xml.parsers.SAXParser;
41 import javax.xml.parsers.SAXParserFactory;
42 import org.xml.sax.Attributes;
43 import org.xml.sax.ErrorHandler;
44 import org.xml.sax.InputSource;
45 import org.xml.sax.helpers.DefaultHandler;
46
47 public class LogParser extends DefaultHandler implements ErrorHandler, Constants {
48
49 static final HashMap<String, String> typeMap;
50 static {
51 typeMap = new HashMap<String, String>();
52 typeMap.put("[I", "int[]");
53 typeMap.put("[C", "char[]");
54 typeMap.put("[Z", "boolean[]");
55 typeMap.put("[L", "Object[]");
56 typeMap.put("[B", "byte[]");
57 }
58
59 static Comparator<LogEvent> sortByStart = new Comparator<LogEvent>() {
60
61 public int compare(LogEvent a, LogEvent b) {
62 double difference = (a.getStart() - b.getStart());
63 if (difference < 0) {
64 return -1;
65 }
66 if (difference > 0) {
67 return 1;
68 }
69 return 0;
70 }
71
72 @Override
73 public boolean equals(Object other) {
74 return false;
75 }
76
77 @Override
78 public int hashCode() {
79 return 7;
80 }
81 };
82 static Comparator<LogEvent> sortByNameAndStart = new Comparator<LogEvent>() {
83
84 public int compare(LogEvent a, LogEvent b) {
85 Compilation c1 = a.getCompilation();
86 Compilation c2 = b.getCompilation();
87 if (c1 != null && c2 != null) {
88 int result = c1.getMethod().toString().compareTo(c2.getMethod().toString());
89 if (result != 0) {
90 return result;
91 }
92 }
93 double difference = (a.getStart() - b.getStart());
94 if (difference < 0) {
95 return -1;
96 }
97 if (difference > 0) {
98 return 1;
99 }
100 return 0;
101 }
102
103 public boolean equals(Object other) {
104 return false;
105 }
106
107 @Override
108 public int hashCode() {
109 return 7;
110 }
111 };
112 static Comparator<LogEvent> sortByElapsed = new Comparator<LogEvent>() {
113
114 public int compare(LogEvent a, LogEvent b) {
115 double difference = (a.getElapsedTime() - b.getElapsedTime());
116 if (difference < 0) {
117 return -1;
118 }
119 if (difference > 0) {
120 return 1;
121 }
122 return 0;
123 }
124
125 @Override
126 public boolean equals(Object other) {
127 return false;
128 }
129
130 @Override
131 public int hashCode() {
132 return 7;
133 }
134 };
135
136 private ArrayList<LogEvent> events = new ArrayList<LogEvent>();
137
138 private HashMap<String, String> types = new HashMap<String, String>();
139 private HashMap<String, Method> methods = new HashMap<String, Method>();
140 private LinkedHashMap<String, NMethod> nmethods = new LinkedHashMap<String, NMethod>();
141 private HashMap<String, Compilation> compiles = new HashMap<String, Compilation>();
142 private String failureReason;
143 private int bci;
144 private Stack<CallSite> scopes = new Stack<CallSite>();
145 private Compilation compile;
146 private CallSite site;
147 private Stack<Phase> phaseStack = new Stack<Phase>();
148 private UncommonTrapEvent currentTrap;
149
150 long parseLong(String l) {
151 try {
152 return Long.decode(l).longValue();
153 } catch (NumberFormatException nfe) {
154 int split = l.length() - 8;
155 String s1 = "0x" + l.substring(split);
156 String s2 = l.substring(0, split);
157 long v1 = Long.decode(s1).longValue() & 0xffffffffL;
158 long v2 = (Long.decode(s2).longValue() & 0xffffffffL) << 32;
159 if (!l.equals("0x" + Long.toHexString(v1 + v2))) {
160 System.out.println(l);
161 System.out.println(s1);
162 System.out.println(s2);
163 System.out.println(v1);
164 System.out.println(v2);
165 System.out.println(Long.toHexString(v1 + v2));
166 throw new InternalError("bad conversion");
167 }
168 return v1 + v2;
169 }
170 }
171
172 public static ArrayList<LogEvent> parse(String file, boolean cleanup) throws Exception {
173 return parse(new FileReader(file), cleanup);
174 }
175
176 public static ArrayList<LogEvent> parse(Reader reader, boolean cleanup) throws Exception {
177 // Create the XML input factory
178 SAXParserFactory factory = SAXParserFactory.newInstance();
179
180 // Create the XML LogEvent reader
181 SAXParser p = factory.newSAXParser();
182
183 if (cleanup) {
184 // some versions of the log have slightly malformed XML, so clean it
185 // up before passing it to SAX
186 reader = new LogCleanupReader(reader);
187 }
188
189 LogParser log = new LogParser();
190 p.parse(new InputSource(reader), log);
191
192 // Associate compilations with their NMethods
193 for (NMethod nm : log.nmethods.values()) {
194 Compilation c = log.compiles.get(nm.getId());
195 nm.setCompilation(c);
196 // Native wrappers for methods don't have a compilation
197 if (c != null) {
198 c.setNMethod(nm);
199 }
200 }
201
202 // Initially we want the LogEvent log sorted by timestamp
203 Collections.sort(log.events, sortByStart);
204
205 return log.events;
206 }
207
208 String search(Attributes attr, String name) {
209 return search(attr, name, null);
210 }
211
212 String search(Attributes attr, String name, String defaultValue) {
213 String result = attr.getValue(name);
214 if (result != null) {
215 return result;
216 }
217 if (defaultValue != null) {
218 return defaultValue;
219 }
220 for (int i = 0; i < attr.getLength(); i++) {
221 System.out.println(attr.getQName(i) + " " + attr.getValue(attr.getQName(i)));
222 }
223 throw new InternalError("can't find " + name);
224 }
225 int indent = 0;
226 String compile_id;
227
228 String type(String id) {
229 String result = types.get(id);
230 if (result == null) {
231 throw new InternalError(id);
232 }
233 String remapped = typeMap.get(result);
234 if (remapped != null) {
235 return remapped;
236 }
237 return result;
238 }
239
240 void type(String id, String name) {
241 assert type(id) == null;
242 types.put(id, name);
243 }
244
245 Method method(String id) {
246 Method result = methods.get(id);
247 if (result == null) {
248 throw new InternalError(id);
249 }
250 return result;
251 }
252
253 public String makeId(Attributes atts) {
254 String id = atts.getValue("compile_id");
255 String kind = atts.getValue("kind");
256 if (kind != null && kind.equals("osr")) {
257 id += "%";
258 }
259 return id;
260 }
261
262 @Override
263 public void startElement(String uri,
264 String localName,
265 String qname,
266 Attributes atts) {
267 if (qname.equals("phase")) {
268 Phase p = new Phase(search(atts, "name"),
269 Double.parseDouble(search(atts, "stamp")),
270 Integer.parseInt(search(atts, "nodes")));
271 phaseStack.push(p);
272 } else if (qname.equals("phase_done")) {
273 Phase p = phaseStack.pop();
274 p.setEndNodes(Integer.parseInt(search(atts, "nodes")));
275 p.setEnd(Double.parseDouble(search(atts, "stamp")));
276 compile.getPhases().add(p);
277 } else if (qname.equals("task")) {
278 compile = new Compilation(Integer.parseInt(search(atts, "compile_id", "-1")));
279 compile.setStart(Double.parseDouble(search(atts, "stamp")));
280 compile.setICount(search(atts, "count", "0"));
281 compile.setBCount(search(atts, "backedge_count", "0"));
282
283 String method = atts.getValue("method");
284 int space = method.indexOf(' ');
285 method = method.substring(0, space) + "::" +
286 method.substring(space + 1, method.indexOf(' ', space + 1) + 1);
287 String compiler = atts.getValue("compiler");
288 if (compiler == null) {
289 compiler = "";
290 }
291 String kind = atts.getValue("compile_kind");
292 if (kind == null) {
293 kind = "normal";
294 }
295 if (kind.equals("osr")) {
296 compile.setOsr(true);
297 compile.setOsr_bci(Integer.parseInt(search(atts, "osr_bci")));
298 } else if (kind.equals("c2i")) {
299 compile.setSpecial("--- adapter " + method);
300 } else {
301 compile.setSpecial(compile.getId() + " " + method + " (0 bytes)");
302 }
303 events.add(compile);
304 compiles.put(makeId(atts), compile);
305 } else if (qname.equals("type")) {
306 type(search(atts, "id"), search(atts, "name"));
307 } else if (qname.equals("bc")) {
308 bci = Integer.parseInt(search(atts, "bci"));
309 } else if (qname.equals("klass")) {
310 type(search(atts, "id"), search(atts, "name"));
311 } else if (qname.equals("method")) {
312 String id = search(atts, "id");
313 Method m = new Method();
314 m.setHolder(type(search(atts, "holder")));
315 m.setName(search(atts, "name"));
316 m.setReturnType(type(search(atts, "return")));
317 m.setArguments(search(atts, "arguments", "void"));
318 m.setBytes(search(atts, "bytes"));
319 m.setIICount(search(atts, "iicount"));
320 m.setFlags(search(atts, "flags"));
321 methods.put(id, m);
322 } else if (qname.equals("call")) {
323 site = new CallSite(bci, method(search(atts, "method")));
324 site.setCount(Integer.parseInt(search(atts, "count")));
325 String receiver = atts.getValue("receiver");
326 if (receiver != null) {
327 site.setReceiver(type(receiver));
328 site.setReceiver_count(Integer.parseInt(search(atts, "receiver_count")));
329 }
330 scopes.peek().add(site);
331 } else if (qname.equals("regalloc")) {
332 compile.setAttempts(Integer.parseInt(search(atts, "attempts")));
333 } else if (qname.equals("inline_fail")) {
334 scopes.peek().last().setReason(search(atts, "reason"));
335 } else if (qname.equals("failure")) {
336 failureReason = search(atts, "reason");
337 } else if (qname.equals("task_done")) {
338 compile.setEnd(Double.parseDouble(search(atts, "stamp")));
339 if (Integer.parseInt(search(atts, "success")) == 0) {
340 compile.setFailureReason(failureReason);
341 }
342 } else if (qname.equals("make_not_entrant")) {
343 String id = makeId(atts);
344 NMethod nm = nmethods.get(id);
345 if (nm == null) throw new InternalError();
346 LogEvent e = new MakeNotEntrantEvent(Double.parseDouble(search(atts, "stamp")), id,
347 atts.getValue("zombie") != null, nm);
348 events.add(e);
349 } else if (qname.equals("uncommon_trap")) {
350 String id = atts.getValue("compile_id");
351 if (id != null) {
352 id = makeId(atts);
353 currentTrap = new UncommonTrapEvent(Double.parseDouble(search(atts, "stamp")),
354 id,
355 atts.getValue("reason"),
356 atts.getValue("action"),
357 Integer.parseInt(search(atts, "count", "0")));
358 events.add(currentTrap);
359 } else {
360 // uncommon trap inserted during parsing.
361 // ignore for now
362 }
363 } else if (qname.equals("jvms")) {
364 // <jvms bci='4' method='java/io/DataInputStream readChar ()C' bytes='40' count='5815' iicount='20815'/>
365 if (currentTrap != null) {
366 currentTrap.addJVMS(atts.getValue("method"), Integer.parseInt(atts.getValue("bci")));
367 } else {
368 // Ignore <eliminate_allocation type='667'> and <eliminate_lock lock='1'>
369 }
370 } else if (qname.equals("nmethod")) {
371 String id = makeId(atts);
372 NMethod nm = new NMethod(Double.parseDouble(search(atts, "stamp")),
373 id,
374 parseLong(atts.getValue("address")),
375 parseLong(atts.getValue("size")));
376 nmethods.put(id, nm);
377 events.add(nm);
378 } else if (qname.equals("parse")) {
379 Method m = method(search(atts, "method"));
380 if (scopes.size() == 0) {
381 compile.setMethod(m);
382 scopes.push(compile.getCall());
383 } else {
384 if (site.getMethod() == m) {
385 scopes.push(site);
386 } else if (scopes.peek().getCalls().size() > 2 && m == scopes.peek().last(-2).getMethod()) {
387 scopes.push(scopes.peek().last(-2));
388 } else {
389 System.out.println(site.getMethod());
390 System.out.println(m);
391 throw new InternalError("call site and parse don't match");
392 }
393 }
394 } else if (qname.equals("parse_done")) {
395 CallSite call = scopes.pop();
396 call.setEndNodes(Integer.parseInt(search(atts, "nodes")));
397 call.setTimeStamp(Double.parseDouble(search(atts, "stamp")));
398 scopes.push(call);
399 }
400 }
401
402 @Override
403 public void endElement(String uri,
404 String localName,
405 String qname) {
406 if (qname.equals("parse")) {
407 indent -= 2;
408 scopes.pop();
409 } else if (qname.equals("uncommon_trap")) {
410 currentTrap = null;
411 } else if (qname.equals("task")) {
412 types.clear();
413 methods.clear();
414 site = null;
415 }
416 }
417
418 @Override
419 public void warning(org.xml.sax.SAXParseException e) {
420 System.err.println(e.getMessage() + " at line " + e.getLineNumber() + ", column " + e.getColumnNumber());
421 e.printStackTrace();
422 }
423
424 @Override
425 public void error(org.xml.sax.SAXParseException e) {
426 System.err.println(e.getMessage() + " at line " + e.getLineNumber() + ", column " + e.getColumnNumber());
427 e.printStackTrace();
428 }
429
430 @Override
431 public void fatalError(org.xml.sax.SAXParseException e) {
432 System.err.println(e.getMessage() + " at line " + e.getLineNumber() + ", column " + e.getColumnNumber());
433 e.printStackTrace();
434 }
435 }