Mercurial > hg > graal-jvmci-8
comparison agent/src/share/classes/sun/jvm/hotspot/debugger/dummy/DummyAddress.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 2000-2002 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.dummy; | |
26 | |
27 import sun.jvm.hotspot.debugger.*; | |
28 | |
29 /** For testing purposes */ | |
30 | |
31 class DummyAddress implements Address { | |
32 protected DummyDebugger debugger; | |
33 protected long addr; | |
34 private static final long badLong = 0xBAADBABEL; | |
35 private static final double badDouble = 1.23456; | |
36 | |
37 DummyAddress(DummyDebugger debugger, long addr) { | |
38 this.debugger = debugger; | |
39 this.addr = addr; | |
40 } | |
41 | |
42 // | |
43 // Basic Java routines | |
44 // | |
45 | |
46 public boolean equals(Object arg) { | |
47 if (arg == null) { | |
48 return false; | |
49 } | |
50 | |
51 if (!(arg instanceof DummyAddress)) { | |
52 return false; | |
53 } | |
54 | |
55 return (addr == ((DummyAddress) arg).addr); | |
56 } | |
57 | |
58 public int hashCode() { | |
59 // FIXME: suggestions on a better hash code? | |
60 return (int) addr; | |
61 } | |
62 | |
63 public String toString() { | |
64 return debugger.addressToString(this); | |
65 } | |
66 | |
67 // | |
68 // C/C++-related routines | |
69 // | |
70 | |
71 public long getCIntegerAt(long offset, long numBytes, boolean isUnsigned) throws UnalignedAddressException, UnmappedAddressException { | |
72 return badLong; | |
73 } | |
74 | |
75 public Address getAddressAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
76 return new DummyAddress(debugger, badLong); | |
77 } | |
78 | |
79 // | |
80 // Java-related routines | |
81 // | |
82 | |
83 public boolean getJBooleanAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
84 return false; | |
85 } | |
86 | |
87 public byte getJByteAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
88 return (byte) badLong; | |
89 } | |
90 | |
91 public char getJCharAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
92 return (char) badLong; | |
93 } | |
94 | |
95 public double getJDoubleAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
96 return badDouble; | |
97 } | |
98 | |
99 public float getJFloatAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
100 return (float) badDouble; | |
101 } | |
102 | |
103 public int getJIntAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
104 return (int) badLong; | |
105 } | |
106 | |
107 public long getJLongAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
108 return badLong; | |
109 } | |
110 | |
111 public short getJShortAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
112 return (short) badLong; | |
113 } | |
114 | |
115 public OopHandle getOopHandleAt(long offset) | |
116 throws UnalignedAddressException, UnmappedAddressException, NotInHeapException { | |
117 return new DummyOopHandle(debugger, badLong); | |
118 } | |
119 | |
120 // Mutators -- not implemented | |
121 public void setCIntegerAt(long offset, long numBytes, long value) { | |
122 throw new DebuggerException("Unimplemented"); | |
123 } | |
124 public void setAddressAt(long offset, Address value) { | |
125 throw new DebuggerException("Unimplemented"); | |
126 } | |
127 public void setJBooleanAt (long offset, boolean value) | |
128 throws UnmappedAddressException, UnalignedAddressException { | |
129 throw new DebuggerException("Unimplemented"); | |
130 } | |
131 public void setJByteAt (long offset, byte value) | |
132 throws UnmappedAddressException, UnalignedAddressException { | |
133 throw new DebuggerException("Unimplemented"); | |
134 } | |
135 public void setJCharAt (long offset, char value) | |
136 throws UnmappedAddressException, UnalignedAddressException { | |
137 throw new DebuggerException("Unimplemented"); | |
138 } | |
139 public void setJDoubleAt (long offset, double value) | |
140 throws UnmappedAddressException, UnalignedAddressException { | |
141 throw new DebuggerException("Unimplemented"); | |
142 } | |
143 public void setJFloatAt (long offset, float value) | |
144 throws UnmappedAddressException, UnalignedAddressException { | |
145 throw new DebuggerException("Unimplemented"); | |
146 } | |
147 public void setJIntAt (long offset, int value) | |
148 throws UnmappedAddressException, UnalignedAddressException { | |
149 throw new DebuggerException("Unimplemented"); | |
150 } | |
151 public void setJLongAt (long offset, long value) | |
152 throws UnmappedAddressException, UnalignedAddressException { | |
153 throw new DebuggerException("Unimplemented"); | |
154 } | |
155 public void setJShortAt (long offset, short value) | |
156 throws UnmappedAddressException, UnalignedAddressException { | |
157 throw new DebuggerException("Unimplemented"); | |
158 } | |
159 public void setOopHandleAt (long offset, OopHandle value) | |
160 throws UnmappedAddressException, UnalignedAddressException { | |
161 throw new DebuggerException("Unimplemented"); | |
162 } | |
163 | |
164 // | |
165 // Arithmetic operations -- necessary evil. | |
166 // | |
167 | |
168 public Address addOffsetTo (long offset) throws UnsupportedOperationException { | |
169 long value = addr + offset; | |
170 if (value == 0) { | |
171 return null; | |
172 } | |
173 return new DummyAddress(debugger, value); | |
174 } | |
175 | |
176 public OopHandle addOffsetToAsOopHandle(long offset) throws UnsupportedOperationException { | |
177 long value = addr + offset; | |
178 if (value == 0) { | |
179 return null; | |
180 } | |
181 return new DummyOopHandle(debugger, value); | |
182 } | |
183 | |
184 /** (FIXME: any signed/unsigned issues? Should this work for | |
185 OopHandles?) */ | |
186 public long minus(Address arg) { | |
187 if (arg == null) { | |
188 return addr; | |
189 } | |
190 return addr - ((DummyAddress) arg).addr; | |
191 } | |
192 | |
193 // Two's complement representation. | |
194 // All negative numbers are larger than positive numbers. | |
195 // Numbers with the same sign can be compared normally. | |
196 // Test harness is below in main(). | |
197 | |
198 public boolean lessThan (Address arg) { | |
199 DummyAddress DummyArg = (DummyAddress) arg; | |
200 if ((addr >= 0) && (DummyArg.addr < 0)) { | |
201 return true; | |
202 } | |
203 if ((addr < 0) && (DummyArg.addr >= 0)) { | |
204 return false; | |
205 } | |
206 return (addr < DummyArg.addr); | |
207 } | |
208 | |
209 public boolean lessThanOrEqual (Address arg) { | |
210 DummyAddress DummyArg = (DummyAddress) arg; | |
211 if ((addr >= 0) && (DummyArg.addr < 0)) { | |
212 return true; | |
213 } | |
214 if ((addr < 0) && (DummyArg.addr >= 0)) { | |
215 return false; | |
216 } | |
217 return (addr <= DummyArg.addr); | |
218 } | |
219 | |
220 public boolean greaterThan (Address arg) { | |
221 DummyAddress DummyArg = (DummyAddress) arg; | |
222 if ((addr >= 0) && (DummyArg.addr < 0)) { | |
223 return false; | |
224 } | |
225 if ((addr < 0) && (DummyArg.addr >= 0)) { | |
226 return true; | |
227 } | |
228 return (addr > DummyArg.addr); | |
229 } | |
230 | |
231 public boolean greaterThanOrEqual(Address arg) { | |
232 DummyAddress DummyArg = (DummyAddress) arg; | |
233 if ((addr >= 0) && (DummyArg.addr < 0)) { | |
234 return false; | |
235 } | |
236 if ((addr < 0) && (DummyArg.addr >= 0)) { | |
237 return true; | |
238 } | |
239 return (addr >= DummyArg.addr); | |
240 } | |
241 | |
242 public Address andWithMask(long mask) throws UnsupportedOperationException { | |
243 long value = addr & mask; | |
244 if (value == 0) { | |
245 return null; | |
246 } | |
247 return new DummyAddress(debugger, value); | |
248 } | |
249 | |
250 public Address orWithMask(long mask) throws UnsupportedOperationException { | |
251 long value = addr | mask; | |
252 if (value == 0) { | |
253 return null; | |
254 } | |
255 return new DummyAddress(debugger, value); | |
256 } | |
257 | |
258 public Address xorWithMask(long mask) throws UnsupportedOperationException { | |
259 long value = addr ^ mask; | |
260 if (value == 0) { | |
261 return null; | |
262 } | |
263 return new DummyAddress(debugger, value); | |
264 } | |
265 | |
266 //-------------------------------------------------------------------------------- | |
267 // Internals only below this point | |
268 // | |
269 | |
270 long getValue() { | |
271 return addr; | |
272 } | |
273 | |
274 private static void check(boolean arg, String failMessage) { | |
275 if (!arg) { | |
276 System.err.println(failMessage + ": FAILED"); | |
277 System.exit(1); | |
278 } | |
279 } | |
280 | |
281 // Test harness | |
282 public static void main(String[] args) { | |
283 // p/n indicates whether the interior address is really positive | |
284 // or negative. In unsigned terms, p1 < p2 < n1 < n2. | |
285 | |
286 DummyAddress p1 = new DummyAddress(null, 0x7FFFFFFFFFFFFFF0L); | |
287 DummyAddress p2 = (DummyAddress) p1.addOffsetTo(10); | |
288 DummyAddress n1 = (DummyAddress) p2.addOffsetTo(10); | |
289 DummyAddress n2 = (DummyAddress) n1.addOffsetTo(10); | |
290 | |
291 // lessThan positive tests | |
292 check(p1.lessThan(p2), "lessThan 1"); | |
293 check(p1.lessThan(n1), "lessThan 2"); | |
294 check(p1.lessThan(n2), "lessThan 3"); | |
295 check(p2.lessThan(n1), "lessThan 4"); | |
296 check(p2.lessThan(n2), "lessThan 5"); | |
297 check(n1.lessThan(n2), "lessThan 6"); | |
298 | |
299 // lessThan negative tests | |
300 check(!p1.lessThan(p1), "lessThan 7"); | |
301 check(!p2.lessThan(p2), "lessThan 8"); | |
302 check(!n1.lessThan(n1), "lessThan 9"); | |
303 check(!n2.lessThan(n2), "lessThan 10"); | |
304 | |
305 check(!p2.lessThan(p1), "lessThan 11"); | |
306 check(!n1.lessThan(p1), "lessThan 12"); | |
307 check(!n2.lessThan(p1), "lessThan 13"); | |
308 check(!n1.lessThan(p2), "lessThan 14"); | |
309 check(!n2.lessThan(p2), "lessThan 15"); | |
310 check(!n2.lessThan(n1), "lessThan 16"); | |
311 | |
312 // lessThanOrEqual positive tests | |
313 check(p1.lessThanOrEqual(p1), "lessThanOrEqual 1"); | |
314 check(p2.lessThanOrEqual(p2), "lessThanOrEqual 2"); | |
315 check(n1.lessThanOrEqual(n1), "lessThanOrEqual 3"); | |
316 check(n2.lessThanOrEqual(n2), "lessThanOrEqual 4"); | |
317 | |
318 check(p1.lessThanOrEqual(p2), "lessThanOrEqual 5"); | |
319 check(p1.lessThanOrEqual(n1), "lessThanOrEqual 6"); | |
320 check(p1.lessThanOrEqual(n2), "lessThanOrEqual 7"); | |
321 check(p2.lessThanOrEqual(n1), "lessThanOrEqual 8"); | |
322 check(p2.lessThanOrEqual(n2), "lessThanOrEqual 9"); | |
323 check(n1.lessThanOrEqual(n2), "lessThanOrEqual 10"); | |
324 | |
325 // lessThanOrEqual negative tests | |
326 check(!p2.lessThanOrEqual(p1), "lessThanOrEqual 11"); | |
327 check(!n1.lessThanOrEqual(p1), "lessThanOrEqual 12"); | |
328 check(!n2.lessThanOrEqual(p1), "lessThanOrEqual 13"); | |
329 check(!n1.lessThanOrEqual(p2), "lessThanOrEqual 14"); | |
330 check(!n2.lessThanOrEqual(p2), "lessThanOrEqual 15"); | |
331 check(!n2.lessThanOrEqual(n1), "lessThanOrEqual 16"); | |
332 | |
333 // greaterThan positive tests | |
334 check(n2.greaterThan(p1), "greaterThan 1"); | |
335 check(n2.greaterThan(p2), "greaterThan 2"); | |
336 check(n2.greaterThan(n1), "greaterThan 3"); | |
337 check(n1.greaterThan(p1), "greaterThan 4"); | |
338 check(n1.greaterThan(p2), "greaterThan 5"); | |
339 check(p2.greaterThan(p1), "greaterThan 6"); | |
340 | |
341 // greaterThan negative tests | |
342 check(!p1.greaterThan(p1), "greaterThan 7"); | |
343 check(!p2.greaterThan(p2), "greaterThan 8"); | |
344 check(!n1.greaterThan(n1), "greaterThan 9"); | |
345 check(!n2.greaterThan(n2), "greaterThan 10"); | |
346 | |
347 check(!p1.greaterThan(n2), "greaterThan 11"); | |
348 check(!p2.greaterThan(n2), "greaterThan 12"); | |
349 check(!n1.greaterThan(n2), "greaterThan 13"); | |
350 check(!p1.greaterThan(n1), "greaterThan 14"); | |
351 check(!p2.greaterThan(n1), "greaterThan 15"); | |
352 check(!p1.greaterThan(p2), "greaterThan 16"); | |
353 | |
354 // greaterThanOrEqual positive tests | |
355 check(p1.greaterThanOrEqual(p1), "greaterThanOrEqual 1"); | |
356 check(p2.greaterThanOrEqual(p2), "greaterThanOrEqual 2"); | |
357 check(n1.greaterThanOrEqual(n1), "greaterThanOrEqual 3"); | |
358 check(n2.greaterThanOrEqual(n2), "greaterThanOrEqual 4"); | |
359 | |
360 check(n2.greaterThanOrEqual(p1), "greaterThanOrEqual 5"); | |
361 check(n2.greaterThanOrEqual(p2), "greaterThanOrEqual 6"); | |
362 check(n2.greaterThanOrEqual(n1), "greaterThanOrEqual 7"); | |
363 check(n1.greaterThanOrEqual(p1), "greaterThanOrEqual 8"); | |
364 check(n1.greaterThanOrEqual(p2), "greaterThanOrEqual 9"); | |
365 check(p2.greaterThanOrEqual(p1), "greaterThanOrEqual 10"); | |
366 | |
367 // greaterThanOrEqual negative tests | |
368 check(!p1.greaterThanOrEqual(n2), "greaterThanOrEqual 11"); | |
369 check(!p2.greaterThanOrEqual(n2), "greaterThanOrEqual 12"); | |
370 check(!n1.greaterThanOrEqual(n2), "greaterThanOrEqual 13"); | |
371 check(!p1.greaterThanOrEqual(n1), "greaterThanOrEqual 14"); | |
372 check(!p2.greaterThanOrEqual(n1), "greaterThanOrEqual 15"); | |
373 check(!p1.greaterThanOrEqual(p2), "greaterThanOrEqual 16"); | |
374 | |
375 System.err.println("DummyAddress: all tests passed successfully."); | |
376 } | |
377 } |