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comparison agent/src/share/classes/sun/jvm/hotspot/debugger/windbg/WindbgAddress.java @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
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children | ba764ed4b6f2 |
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1 /* | |
2 * Copyright 2002 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 package sun.jvm.hotspot.debugger.windbg; | |
26 | |
27 import sun.jvm.hotspot.debugger.*; | |
28 | |
29 class WindbgAddress implements Address { | |
30 protected WindbgDebugger debugger; | |
31 protected long addr; | |
32 | |
33 WindbgAddress(WindbgDebugger debugger, long addr) { | |
34 this.debugger = debugger; | |
35 this.addr = addr; | |
36 } | |
37 | |
38 // | |
39 // Basic Java routines | |
40 // | |
41 | |
42 public boolean equals(Object arg) { | |
43 if (arg == null) { | |
44 return false; | |
45 } | |
46 | |
47 if (!(arg instanceof WindbgAddress)) { | |
48 return false; | |
49 } | |
50 | |
51 return (addr == ((WindbgAddress) arg).addr); | |
52 } | |
53 | |
54 public int hashCode() { | |
55 // FIXME: suggestions on a better hash code? | |
56 return (int) addr; | |
57 } | |
58 | |
59 public String toString() { | |
60 return debugger.addressValueToString(addr); | |
61 } | |
62 | |
63 // | |
64 // C/C++-related routines | |
65 // | |
66 | |
67 public long getCIntegerAt(long offset, long numBytes, boolean isUnsigned) throws UnalignedAddressException, UnmappedAddressException { | |
68 return debugger.readCInteger(addr + offset, numBytes, isUnsigned); | |
69 } | |
70 | |
71 public Address getAddressAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
72 return debugger.readAddress(addr + offset); | |
73 } | |
74 | |
75 // | |
76 // Java-related routines | |
77 // | |
78 | |
79 public boolean getJBooleanAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
80 return debugger.readJBoolean(addr + offset); | |
81 } | |
82 | |
83 public byte getJByteAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
84 return debugger.readJByte(addr + offset); | |
85 } | |
86 | |
87 public char getJCharAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
88 return debugger.readJChar(addr + offset); | |
89 } | |
90 | |
91 public double getJDoubleAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
92 return debugger.readJDouble(addr + offset); | |
93 } | |
94 | |
95 public float getJFloatAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
96 return debugger.readJFloat(addr + offset); | |
97 } | |
98 | |
99 public int getJIntAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
100 return debugger.readJInt(addr + offset); | |
101 } | |
102 | |
103 public long getJLongAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
104 return debugger.readJLong(addr + offset); | |
105 } | |
106 | |
107 public short getJShortAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
108 return debugger.readJShort(addr + offset); | |
109 } | |
110 | |
111 public OopHandle getOopHandleAt(long offset) | |
112 throws UnalignedAddressException, UnmappedAddressException, NotInHeapException { | |
113 return debugger.readOopHandle(addr + offset); | |
114 } | |
115 | |
116 // | |
117 // C/C++-related mutators | |
118 // | |
119 | |
120 public void setCIntegerAt(long offset, long numBytes, long value) { | |
121 throw new DebuggerException("Unimplemented"); | |
122 } | |
123 public void setAddressAt(long offset, Address value) { | |
124 throw new DebuggerException("Unimplemented"); | |
125 } | |
126 | |
127 // | |
128 // Java-related mutators | |
129 // | |
130 | |
131 // Mutators -- not implemented for now (FIXME) | |
132 public void setJBooleanAt (long offset, boolean value) | |
133 throws UnmappedAddressException, UnalignedAddressException { | |
134 throw new DebuggerException("Unimplemented"); | |
135 } | |
136 public void setJByteAt (long offset, byte value) | |
137 throws UnmappedAddressException, UnalignedAddressException { | |
138 throw new DebuggerException("Unimplemented"); | |
139 } | |
140 public void setJCharAt (long offset, char value) | |
141 throws UnmappedAddressException, UnalignedAddressException { | |
142 throw new DebuggerException("Unimplemented"); | |
143 } | |
144 public void setJDoubleAt (long offset, double value) | |
145 throws UnmappedAddressException, UnalignedAddressException { | |
146 throw new DebuggerException("Unimplemented"); | |
147 } | |
148 public void setJFloatAt (long offset, float value) | |
149 throws UnmappedAddressException, UnalignedAddressException { | |
150 throw new DebuggerException("Unimplemented"); | |
151 } | |
152 public void setJIntAt (long offset, int value) | |
153 throws UnmappedAddressException, UnalignedAddressException { | |
154 throw new DebuggerException("Unimplemented"); | |
155 } | |
156 public void setJLongAt (long offset, long value) | |
157 throws UnmappedAddressException, UnalignedAddressException { | |
158 throw new DebuggerException("Unimplemented"); | |
159 } | |
160 public void setJShortAt (long offset, short value) | |
161 throws UnmappedAddressException, UnalignedAddressException { | |
162 throw new DebuggerException("Unimplemented"); | |
163 } | |
164 public void setOopHandleAt (long offset, OopHandle value) | |
165 throws UnmappedAddressException, UnalignedAddressException { | |
166 throw new DebuggerException("Unimplemented"); | |
167 } | |
168 | |
169 // | |
170 // Arithmetic operations -- necessary evil. | |
171 // | |
172 | |
173 public Address addOffsetTo (long offset) throws UnsupportedOperationException { | |
174 long value = addr + offset; | |
175 if (value == 0) { | |
176 return null; | |
177 } | |
178 return new WindbgAddress(debugger, value); | |
179 } | |
180 | |
181 public OopHandle addOffsetToAsOopHandle(long offset) throws UnsupportedOperationException { | |
182 long value = addr + offset; | |
183 if (value == 0) { | |
184 return null; | |
185 } | |
186 return new WindbgOopHandle(debugger, value); | |
187 } | |
188 | |
189 /** (FIXME: any signed/unsigned issues? Should this work for | |
190 OopHandles?) */ | |
191 public long minus(Address arg) { | |
192 if (arg == null) { | |
193 return addr; | |
194 } | |
195 return addr - ((WindbgAddress) arg).addr; | |
196 } | |
197 | |
198 // Two's complement representation. | |
199 // All negative numbers are larger than positive numbers. | |
200 // Numbers with the same sign can be compared normally. | |
201 // Test harness is below in main(). | |
202 | |
203 public boolean lessThan (Address a) { | |
204 if (a == null) { | |
205 return false; | |
206 } | |
207 WindbgAddress arg = (WindbgAddress) a; | |
208 if ((addr >= 0) && (arg.addr < 0)) { | |
209 return true; | |
210 } | |
211 if ((addr < 0) && (arg.addr >= 0)) { | |
212 return false; | |
213 } | |
214 return (addr < arg.addr); | |
215 } | |
216 | |
217 public boolean lessThanOrEqual (Address a) { | |
218 if (a == null) { | |
219 return false; | |
220 } | |
221 WindbgAddress arg = (WindbgAddress) a; | |
222 if ((addr >= 0) && (arg.addr < 0)) { | |
223 return true; | |
224 } | |
225 if ((addr < 0) && (arg.addr >= 0)) { | |
226 return false; | |
227 } | |
228 return (addr <= arg.addr); | |
229 } | |
230 | |
231 public boolean greaterThan (Address a) { | |
232 if (a == null) { | |
233 return true; | |
234 } | |
235 WindbgAddress arg = (WindbgAddress) a; | |
236 if ((addr >= 0) && (arg.addr < 0)) { | |
237 return false; | |
238 } | |
239 if ((addr < 0) && (arg.addr >= 0)) { | |
240 return true; | |
241 } | |
242 return (addr > arg.addr); | |
243 } | |
244 | |
245 public boolean greaterThanOrEqual(Address a) { | |
246 if (a == null) { | |
247 return true; | |
248 } | |
249 WindbgAddress arg = (WindbgAddress) a; | |
250 if ((addr >= 0) && (arg.addr < 0)) { | |
251 return false; | |
252 } | |
253 if ((addr < 0) && (arg.addr >= 0)) { | |
254 return true; | |
255 } | |
256 return (addr >= arg.addr); | |
257 } | |
258 | |
259 public Address andWithMask(long mask) throws UnsupportedOperationException { | |
260 long value = addr & mask; | |
261 if (value == 0) { | |
262 return null; | |
263 } | |
264 return new WindbgAddress(debugger, value); | |
265 } | |
266 | |
267 public Address orWithMask(long mask) throws UnsupportedOperationException { | |
268 long value = addr | mask; | |
269 if (value == 0) { | |
270 return null; | |
271 } | |
272 return new WindbgAddress(debugger, value); | |
273 } | |
274 | |
275 public Address xorWithMask(long mask) throws UnsupportedOperationException { | |
276 long value = addr ^ mask; | |
277 if (value == 0) { | |
278 return null; | |
279 } | |
280 return new WindbgAddress(debugger, value); | |
281 } | |
282 | |
283 | |
284 //-------------------------------------------------------------------------------- | |
285 // Internals only below this point | |
286 // | |
287 | |
288 long getValue() { | |
289 return addr; | |
290 } | |
291 | |
292 | |
293 private static void check(boolean arg, String failMessage) { | |
294 if (!arg) { | |
295 System.err.println(failMessage + ": FAILED"); | |
296 System.exit(1); | |
297 } | |
298 } | |
299 | |
300 // Test harness | |
301 public static void main(String[] args) { | |
302 // p/n indicates whether the interior address is really positive | |
303 // or negative. In unsigned terms, p1 < p2 < n1 < n2. | |
304 | |
305 WindbgAddress p1 = new WindbgAddress(null, 0x7FFFFFFFFFFFFFF0L); | |
306 WindbgAddress p2 = (WindbgAddress) p1.addOffsetTo(10); | |
307 WindbgAddress n1 = (WindbgAddress) p2.addOffsetTo(10); | |
308 WindbgAddress n2 = (WindbgAddress) n1.addOffsetTo(10); | |
309 | |
310 // lessThan positive tests | |
311 check(p1.lessThan(p2), "lessThan 1"); | |
312 check(p1.lessThan(n1), "lessThan 2"); | |
313 check(p1.lessThan(n2), "lessThan 3"); | |
314 check(p2.lessThan(n1), "lessThan 4"); | |
315 check(p2.lessThan(n2), "lessThan 5"); | |
316 check(n1.lessThan(n2), "lessThan 6"); | |
317 | |
318 // lessThan negative tests | |
319 check(!p1.lessThan(p1), "lessThan 7"); | |
320 check(!p2.lessThan(p2), "lessThan 8"); | |
321 check(!n1.lessThan(n1), "lessThan 9"); | |
322 check(!n2.lessThan(n2), "lessThan 10"); | |
323 | |
324 check(!p2.lessThan(p1), "lessThan 11"); | |
325 check(!n1.lessThan(p1), "lessThan 12"); | |
326 check(!n2.lessThan(p1), "lessThan 13"); | |
327 check(!n1.lessThan(p2), "lessThan 14"); | |
328 check(!n2.lessThan(p2), "lessThan 15"); | |
329 check(!n2.lessThan(n1), "lessThan 16"); | |
330 | |
331 // lessThanOrEqual positive tests | |
332 check(p1.lessThanOrEqual(p1), "lessThanOrEqual 1"); | |
333 check(p2.lessThanOrEqual(p2), "lessThanOrEqual 2"); | |
334 check(n1.lessThanOrEqual(n1), "lessThanOrEqual 3"); | |
335 check(n2.lessThanOrEqual(n2), "lessThanOrEqual 4"); | |
336 | |
337 check(p1.lessThanOrEqual(p2), "lessThanOrEqual 5"); | |
338 check(p1.lessThanOrEqual(n1), "lessThanOrEqual 6"); | |
339 check(p1.lessThanOrEqual(n2), "lessThanOrEqual 7"); | |
340 check(p2.lessThanOrEqual(n1), "lessThanOrEqual 8"); | |
341 check(p2.lessThanOrEqual(n2), "lessThanOrEqual 9"); | |
342 check(n1.lessThanOrEqual(n2), "lessThanOrEqual 10"); | |
343 | |
344 // lessThanOrEqual negative tests | |
345 check(!p2.lessThanOrEqual(p1), "lessThanOrEqual 11"); | |
346 check(!n1.lessThanOrEqual(p1), "lessThanOrEqual 12"); | |
347 check(!n2.lessThanOrEqual(p1), "lessThanOrEqual 13"); | |
348 check(!n1.lessThanOrEqual(p2), "lessThanOrEqual 14"); | |
349 check(!n2.lessThanOrEqual(p2), "lessThanOrEqual 15"); | |
350 check(!n2.lessThanOrEqual(n1), "lessThanOrEqual 16"); | |
351 | |
352 // greaterThan positive tests | |
353 check(n2.greaterThan(p1), "greaterThan 1"); | |
354 check(n2.greaterThan(p2), "greaterThan 2"); | |
355 check(n2.greaterThan(n1), "greaterThan 3"); | |
356 check(n1.greaterThan(p1), "greaterThan 4"); | |
357 check(n1.greaterThan(p2), "greaterThan 5"); | |
358 check(p2.greaterThan(p1), "greaterThan 6"); | |
359 | |
360 // greaterThan negative tests | |
361 check(!p1.greaterThan(p1), "greaterThan 7"); | |
362 check(!p2.greaterThan(p2), "greaterThan 8"); | |
363 check(!n1.greaterThan(n1), "greaterThan 9"); | |
364 check(!n2.greaterThan(n2), "greaterThan 10"); | |
365 | |
366 check(!p1.greaterThan(n2), "greaterThan 11"); | |
367 check(!p2.greaterThan(n2), "greaterThan 12"); | |
368 check(!n1.greaterThan(n2), "greaterThan 13"); | |
369 check(!p1.greaterThan(n1), "greaterThan 14"); | |
370 check(!p2.greaterThan(n1), "greaterThan 15"); | |
371 check(!p1.greaterThan(p2), "greaterThan 16"); | |
372 | |
373 // greaterThanOrEqual positive tests | |
374 check(p1.greaterThanOrEqual(p1), "greaterThanOrEqual 1"); | |
375 check(p2.greaterThanOrEqual(p2), "greaterThanOrEqual 2"); | |
376 check(n1.greaterThanOrEqual(n1), "greaterThanOrEqual 3"); | |
377 check(n2.greaterThanOrEqual(n2), "greaterThanOrEqual 4"); | |
378 | |
379 check(n2.greaterThanOrEqual(p1), "greaterThanOrEqual 5"); | |
380 check(n2.greaterThanOrEqual(p2), "greaterThanOrEqual 6"); | |
381 check(n2.greaterThanOrEqual(n1), "greaterThanOrEqual 7"); | |
382 check(n1.greaterThanOrEqual(p1), "greaterThanOrEqual 8"); | |
383 check(n1.greaterThanOrEqual(p2), "greaterThanOrEqual 9"); | |
384 check(p2.greaterThanOrEqual(p1), "greaterThanOrEqual 10"); | |
385 | |
386 // greaterThanOrEqual negative tests | |
387 check(!p1.greaterThanOrEqual(n2), "greaterThanOrEqual 11"); | |
388 check(!p2.greaterThanOrEqual(n2), "greaterThanOrEqual 12"); | |
389 check(!n1.greaterThanOrEqual(n2), "greaterThanOrEqual 13"); | |
390 check(!p1.greaterThanOrEqual(n1), "greaterThanOrEqual 14"); | |
391 check(!p2.greaterThanOrEqual(n1), "greaterThanOrEqual 15"); | |
392 check(!p1.greaterThanOrEqual(p2), "greaterThanOrEqual 16"); | |
393 | |
394 System.err.println("WindbgAddress: all tests passed successfully."); | |
395 } | |
396 } |