Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/debugger/linux/LinuxAddress.java @ 17736:58fc1b1523dc
8034079: G1: Refactor the HeapRegionSet hierarchy
Reviewed-by: tschatzl, pliden
author | brutisso |
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date | Fri, 14 Mar 2014 10:15:46 +0100 |
parents | 55fb97c4c58d |
children | 4ca6dc0799b6 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 package sun.jvm.hotspot.debugger.linux; | |
26 | |
27 import sun.jvm.hotspot.debugger.*; | |
28 | |
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29 public class LinuxAddress implements Address { |
0 | 30 protected LinuxDebugger debugger; |
31 protected long addr; | |
32 | |
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33 public LinuxAddress(LinuxDebugger debugger, long addr) { |
0 | 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 LinuxAddress)) { | |
48 return false; | |
49 } | |
50 | |
51 return (addr == ((LinuxAddress) 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) | |
68 throws UnalignedAddressException, UnmappedAddressException { | |
69 return debugger.readCInteger(addr + offset, numBytes, isUnsigned); | |
70 } | |
71 | |
72 public Address getAddressAt(long offset) | |
73 throws UnalignedAddressException, UnmappedAddressException { | |
74 return debugger.readAddress(addr + offset); | |
75 } | |
76 | |
113
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77 public Address getCompOopAddressAt(long offset) |
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78 throws UnalignedAddressException, UnmappedAddressException { |
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79 return debugger.readCompOopAddress(addr + offset); |
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80 } |
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81 |
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82 public Address getCompKlassAddressAt(long offset) |
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83 throws UnalignedAddressException, UnmappedAddressException { |
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84 return debugger.readCompKlassAddress(addr + offset); |
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85 } |
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86 |
0 | 87 // |
88 // Java-related routines | |
89 // | |
90 | |
91 public boolean getJBooleanAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
92 return debugger.readJBoolean(addr + offset); | |
93 } | |
94 | |
95 public byte getJByteAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
96 return debugger.readJByte(addr + offset); | |
97 } | |
98 | |
99 public char getJCharAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
100 return debugger.readJChar(addr + offset); | |
101 } | |
102 | |
103 public double getJDoubleAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
104 return debugger.readJDouble(addr + offset); | |
105 } | |
106 | |
107 public float getJFloatAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
108 return debugger.readJFloat(addr + offset); | |
109 } | |
110 | |
111 public int getJIntAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
112 return debugger.readJInt(addr + offset); | |
113 } | |
114 | |
115 public long getJLongAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
116 return debugger.readJLong(addr + offset); | |
117 } | |
118 | |
119 public short getJShortAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
120 return debugger.readJShort(addr + offset); | |
121 } | |
122 | |
123 public OopHandle getOopHandleAt(long offset) | |
124 throws UnalignedAddressException, UnmappedAddressException, NotInHeapException { | |
125 return debugger.readOopHandle(addr + offset); | |
126 } | |
127 | |
113
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128 public OopHandle getCompOopHandleAt(long offset) |
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129 throws UnalignedAddressException, UnmappedAddressException, NotInHeapException { |
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130 return debugger.readCompOopHandle(addr + offset); |
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131 } |
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132 |
0 | 133 // Mutators -- not implemented for now (FIXME) |
134 public void setCIntegerAt(long offset, long numBytes, long value) { | |
135 throw new DebuggerException("Unimplemented"); | |
136 } | |
137 public void setAddressAt(long offset, Address value) { | |
138 throw new DebuggerException("Unimplemented"); | |
139 } | |
140 public void setJBooleanAt (long offset, boolean value) | |
141 throws UnmappedAddressException, UnalignedAddressException { | |
142 throw new DebuggerException("Unimplemented"); | |
143 } | |
144 public void setJByteAt (long offset, byte value) | |
145 throws UnmappedAddressException, UnalignedAddressException { | |
146 throw new DebuggerException("Unimplemented"); | |
147 } | |
148 public void setJCharAt (long offset, char value) | |
149 throws UnmappedAddressException, UnalignedAddressException { | |
150 throw new DebuggerException("Unimplemented"); | |
151 } | |
152 public void setJDoubleAt (long offset, double value) | |
153 throws UnmappedAddressException, UnalignedAddressException { | |
154 throw new DebuggerException("Unimplemented"); | |
155 } | |
156 public void setJFloatAt (long offset, float value) | |
157 throws UnmappedAddressException, UnalignedAddressException { | |
158 throw new DebuggerException("Unimplemented"); | |
159 } | |
160 public void setJIntAt (long offset, int value) | |
161 throws UnmappedAddressException, UnalignedAddressException { | |
162 throw new DebuggerException("Unimplemented"); | |
163 } | |
164 public void setJLongAt (long offset, long value) | |
165 throws UnmappedAddressException, UnalignedAddressException { | |
166 throw new DebuggerException("Unimplemented"); | |
167 } | |
168 public void setJShortAt (long offset, short value) | |
169 throws UnmappedAddressException, UnalignedAddressException { | |
170 throw new DebuggerException("Unimplemented"); | |
171 } | |
172 public void setOopHandleAt (long offset, OopHandle value) | |
173 throws UnmappedAddressException, UnalignedAddressException { | |
174 throw new DebuggerException("Unimplemented"); | |
175 } | |
176 | |
177 // | |
178 // Arithmetic operations -- necessary evil. | |
179 // | |
180 | |
181 public Address addOffsetTo (long offset) throws UnsupportedOperationException { | |
182 long value = addr + offset; | |
183 if (value == 0) { | |
184 return null; | |
185 } | |
186 return new LinuxAddress(debugger, value); | |
187 } | |
188 | |
189 public OopHandle addOffsetToAsOopHandle(long offset) throws UnsupportedOperationException { | |
190 long value = addr + offset; | |
191 if (value == 0) { | |
192 return null; | |
193 } | |
194 return new LinuxOopHandle(debugger, value); | |
195 } | |
196 | |
197 /** (FIXME: any signed/unsigned issues? Should this work for | |
198 OopHandles?) */ | |
199 public long minus(Address arg) { | |
200 if (arg == null) { | |
201 return addr; | |
202 } | |
203 return addr - ((LinuxAddress) arg).addr; | |
204 } | |
205 | |
206 // Two's complement representation. | |
207 // All negative numbers are larger than positive numbers. | |
208 // Numbers with the same sign can be compared normally. | |
209 // Test harness is below in main(). | |
210 | |
211 public boolean lessThan (Address a) { | |
212 if (a == null) { | |
213 return false; | |
214 } | |
215 LinuxAddress arg = (LinuxAddress) a; | |
216 if ((addr >= 0) && (arg.addr < 0)) { | |
217 return true; | |
218 } | |
219 if ((addr < 0) && (arg.addr >= 0)) { | |
220 return false; | |
221 } | |
222 return (addr < arg.addr); | |
223 } | |
224 | |
225 public boolean lessThanOrEqual (Address a) { | |
226 if (a == null) { | |
227 return false; | |
228 } | |
229 LinuxAddress arg = (LinuxAddress) a; | |
230 if ((addr >= 0) && (arg.addr < 0)) { | |
231 return true; | |
232 } | |
233 if ((addr < 0) && (arg.addr >= 0)) { | |
234 return false; | |
235 } | |
236 return (addr <= arg.addr); | |
237 } | |
238 | |
239 public boolean greaterThan (Address a) { | |
240 if (a == null) { | |
241 return true; | |
242 } | |
243 LinuxAddress arg = (LinuxAddress) a; | |
244 if ((addr >= 0) && (arg.addr < 0)) { | |
245 return false; | |
246 } | |
247 if ((addr < 0) && (arg.addr >= 0)) { | |
248 return true; | |
249 } | |
250 return (addr > arg.addr); | |
251 } | |
252 | |
253 public boolean greaterThanOrEqual(Address a) { | |
254 if (a == null) { | |
255 return true; | |
256 } | |
257 LinuxAddress arg = (LinuxAddress) a; | |
258 if ((addr >= 0) && (arg.addr < 0)) { | |
259 return false; | |
260 } | |
261 if ((addr < 0) && (arg.addr >= 0)) { | |
262 return true; | |
263 } | |
264 return (addr >= arg.addr); | |
265 } | |
266 | |
267 public Address andWithMask(long mask) throws UnsupportedOperationException { | |
268 long value = addr & mask; | |
269 if (value == 0) { | |
270 return null; | |
271 } | |
272 return new LinuxAddress(debugger, value); | |
273 } | |
274 | |
275 public Address orWithMask(long mask) throws UnsupportedOperationException { | |
276 long value = addr | mask; | |
277 if (value == 0) { | |
278 return null; | |
279 } | |
280 return new LinuxAddress(debugger, value); | |
281 } | |
282 | |
283 public Address xorWithMask(long mask) throws UnsupportedOperationException { | |
284 long value = addr ^ mask; | |
285 if (value == 0) { | |
286 return null; | |
287 } | |
288 return new LinuxAddress(debugger, value); | |
289 } | |
290 | |
291 | |
292 //-------------------------------------------------------------------------------- | |
293 // Internals only below this point | |
294 // | |
295 | |
296 long getValue() { | |
297 return addr; | |
298 } | |
299 | |
300 | |
301 private static void check(boolean arg, String failMessage) { | |
302 if (!arg) { | |
303 System.err.println(failMessage + ": FAILED"); | |
304 System.exit(1); | |
305 } | |
306 } | |
307 | |
308 // Test harness | |
309 public static void main(String[] args) { | |
310 // p/n indicates whether the interior address is really positive | |
311 // or negative. In unsigned terms, p1 < p2 < n1 < n2. | |
312 | |
313 LinuxAddress p1 = new LinuxAddress(null, 0x7FFFFFFFFFFFFFF0L); | |
314 LinuxAddress p2 = (LinuxAddress) p1.addOffsetTo(10); | |
315 LinuxAddress n1 = (LinuxAddress) p2.addOffsetTo(10); | |
316 LinuxAddress n2 = (LinuxAddress) n1.addOffsetTo(10); | |
317 | |
318 // lessThan positive tests | |
319 check(p1.lessThan(p2), "lessThan 1"); | |
320 check(p1.lessThan(n1), "lessThan 2"); | |
321 check(p1.lessThan(n2), "lessThan 3"); | |
322 check(p2.lessThan(n1), "lessThan 4"); | |
323 check(p2.lessThan(n2), "lessThan 5"); | |
324 check(n1.lessThan(n2), "lessThan 6"); | |
325 | |
326 // lessThan negative tests | |
327 check(!p1.lessThan(p1), "lessThan 7"); | |
328 check(!p2.lessThan(p2), "lessThan 8"); | |
329 check(!n1.lessThan(n1), "lessThan 9"); | |
330 check(!n2.lessThan(n2), "lessThan 10"); | |
331 | |
332 check(!p2.lessThan(p1), "lessThan 11"); | |
333 check(!n1.lessThan(p1), "lessThan 12"); | |
334 check(!n2.lessThan(p1), "lessThan 13"); | |
335 check(!n1.lessThan(p2), "lessThan 14"); | |
336 check(!n2.lessThan(p2), "lessThan 15"); | |
337 check(!n2.lessThan(n1), "lessThan 16"); | |
338 | |
339 // lessThanOrEqual positive tests | |
340 check(p1.lessThanOrEqual(p1), "lessThanOrEqual 1"); | |
341 check(p2.lessThanOrEqual(p2), "lessThanOrEqual 2"); | |
342 check(n1.lessThanOrEqual(n1), "lessThanOrEqual 3"); | |
343 check(n2.lessThanOrEqual(n2), "lessThanOrEqual 4"); | |
344 | |
345 check(p1.lessThanOrEqual(p2), "lessThanOrEqual 5"); | |
346 check(p1.lessThanOrEqual(n1), "lessThanOrEqual 6"); | |
347 check(p1.lessThanOrEqual(n2), "lessThanOrEqual 7"); | |
348 check(p2.lessThanOrEqual(n1), "lessThanOrEqual 8"); | |
349 check(p2.lessThanOrEqual(n2), "lessThanOrEqual 9"); | |
350 check(n1.lessThanOrEqual(n2), "lessThanOrEqual 10"); | |
351 | |
352 // lessThanOrEqual negative tests | |
353 check(!p2.lessThanOrEqual(p1), "lessThanOrEqual 11"); | |
354 check(!n1.lessThanOrEqual(p1), "lessThanOrEqual 12"); | |
355 check(!n2.lessThanOrEqual(p1), "lessThanOrEqual 13"); | |
356 check(!n1.lessThanOrEqual(p2), "lessThanOrEqual 14"); | |
357 check(!n2.lessThanOrEqual(p2), "lessThanOrEqual 15"); | |
358 check(!n2.lessThanOrEqual(n1), "lessThanOrEqual 16"); | |
359 | |
360 // greaterThan positive tests | |
361 check(n2.greaterThan(p1), "greaterThan 1"); | |
362 check(n2.greaterThan(p2), "greaterThan 2"); | |
363 check(n2.greaterThan(n1), "greaterThan 3"); | |
364 check(n1.greaterThan(p1), "greaterThan 4"); | |
365 check(n1.greaterThan(p2), "greaterThan 5"); | |
366 check(p2.greaterThan(p1), "greaterThan 6"); | |
367 | |
368 // greaterThan negative tests | |
369 check(!p1.greaterThan(p1), "greaterThan 7"); | |
370 check(!p2.greaterThan(p2), "greaterThan 8"); | |
371 check(!n1.greaterThan(n1), "greaterThan 9"); | |
372 check(!n2.greaterThan(n2), "greaterThan 10"); | |
373 | |
374 check(!p1.greaterThan(n2), "greaterThan 11"); | |
375 check(!p2.greaterThan(n2), "greaterThan 12"); | |
376 check(!n1.greaterThan(n2), "greaterThan 13"); | |
377 check(!p1.greaterThan(n1), "greaterThan 14"); | |
378 check(!p2.greaterThan(n1), "greaterThan 15"); | |
379 check(!p1.greaterThan(p2), "greaterThan 16"); | |
380 | |
381 // greaterThanOrEqual positive tests | |
382 check(p1.greaterThanOrEqual(p1), "greaterThanOrEqual 1"); | |
383 check(p2.greaterThanOrEqual(p2), "greaterThanOrEqual 2"); | |
384 check(n1.greaterThanOrEqual(n1), "greaterThanOrEqual 3"); | |
385 check(n2.greaterThanOrEqual(n2), "greaterThanOrEqual 4"); | |
386 | |
387 check(n2.greaterThanOrEqual(p1), "greaterThanOrEqual 5"); | |
388 check(n2.greaterThanOrEqual(p2), "greaterThanOrEqual 6"); | |
389 check(n2.greaterThanOrEqual(n1), "greaterThanOrEqual 7"); | |
390 check(n1.greaterThanOrEqual(p1), "greaterThanOrEqual 8"); | |
391 check(n1.greaterThanOrEqual(p2), "greaterThanOrEqual 9"); | |
392 check(p2.greaterThanOrEqual(p1), "greaterThanOrEqual 10"); | |
393 | |
394 // greaterThanOrEqual negative tests | |
395 check(!p1.greaterThanOrEqual(n2), "greaterThanOrEqual 11"); | |
396 check(!p2.greaterThanOrEqual(n2), "greaterThanOrEqual 12"); | |
397 check(!n1.greaterThanOrEqual(n2), "greaterThanOrEqual 13"); | |
398 check(!p1.greaterThanOrEqual(n1), "greaterThanOrEqual 14"); | |
399 check(!p2.greaterThanOrEqual(n1), "greaterThanOrEqual 15"); | |
400 check(!p1.greaterThanOrEqual(p2), "greaterThanOrEqual 16"); | |
401 | |
402 System.err.println("LinuxAddress: all tests passed successfully."); | |
403 } | |
404 } |