Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/debugger/proc/ProcAddress.java @ 3972:4f93f0d00802
7059019: G1: add G1 support to the SA
Summary: Extend the SA to recognize the G1CollectedHeap and implement any code that's needed by our serviceability tools (jmap, jinfo, jstack, etc.) that depend on the SA.
Reviewed-by: never, poonam, johnc
author | tonyp |
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date | Tue, 20 Sep 2011 09:59:59 -0400 |
parents | c18cbe5936b8 |
children | 8e47bac5643a |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2002, 2008, 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.proc; | |
26 | |
27 import sun.jvm.hotspot.debugger.*; | |
28 | |
29 class ProcAddress implements Address { | |
30 protected ProcDebugger debugger; | |
31 protected long addr; | |
32 | |
33 ProcAddress(ProcDebugger 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 ProcAddress)) { | |
48 return false; | |
49 } | |
50 | |
51 return (addr == ((ProcAddress) 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 | |
113
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75 public Address getCompOopAddressAt(long offset) throws UnalignedAddressException, UnmappedAddressException { |
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76 return debugger.readCompOopAddress(addr + offset); |
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77 } |
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78 |
0 | 79 // |
80 // Java-related routines | |
81 // | |
82 | |
83 public boolean getJBooleanAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
84 return debugger.readJBoolean(addr + offset); | |
85 } | |
86 | |
87 public byte getJByteAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
88 return debugger.readJByte(addr + offset); | |
89 } | |
90 | |
91 public char getJCharAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
92 return debugger.readJChar(addr + offset); | |
93 } | |
94 | |
95 public double getJDoubleAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
96 return debugger.readJDouble(addr + offset); | |
97 } | |
98 | |
99 public float getJFloatAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
100 return debugger.readJFloat(addr + offset); | |
101 } | |
102 | |
103 public int getJIntAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
104 return debugger.readJInt(addr + offset); | |
105 } | |
106 | |
107 public long getJLongAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
108 return debugger.readJLong(addr + offset); | |
109 } | |
110 | |
111 public short getJShortAt(long offset) throws UnalignedAddressException, UnmappedAddressException { | |
112 return debugger.readJShort(addr + offset); | |
113 } | |
114 | |
115 public OopHandle getOopHandleAt(long offset) | |
116 throws UnalignedAddressException, UnmappedAddressException, NotInHeapException { | |
117 return debugger.readOopHandle(addr + offset); | |
118 } | |
113
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119 public OopHandle getCompOopHandleAt(long offset) |
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120 throws UnalignedAddressException, UnmappedAddressException, NotInHeapException { |
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121 return debugger.readCompOopHandle(addr + offset); |
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122 } |
0 | 123 |
124 // Mutators -- not implemented for now (FIXME) | |
125 public void setCIntegerAt(long offset, long numBytes, long value) { | |
126 throw new DebuggerException("Unimplemented"); | |
127 } | |
128 public void setAddressAt(long offset, Address value) { | |
129 throw new DebuggerException("Unimplemented"); | |
130 } | |
131 public void setJBooleanAt (long offset, boolean value) | |
132 throws UnmappedAddressException, UnalignedAddressException { | |
133 throw new DebuggerException("Unimplemented"); | |
134 } | |
135 public void setJByteAt (long offset, byte value) | |
136 throws UnmappedAddressException, UnalignedAddressException { | |
137 throw new DebuggerException("Unimplemented"); | |
138 } | |
139 public void setJCharAt (long offset, char value) | |
140 throws UnmappedAddressException, UnalignedAddressException { | |
141 throw new DebuggerException("Unimplemented"); | |
142 } | |
143 public void setJDoubleAt (long offset, double value) | |
144 throws UnmappedAddressException, UnalignedAddressException { | |
145 throw new DebuggerException("Unimplemented"); | |
146 } | |
147 public void setJFloatAt (long offset, float value) | |
148 throws UnmappedAddressException, UnalignedAddressException { | |
149 throw new DebuggerException("Unimplemented"); | |
150 } | |
151 public void setJIntAt (long offset, int value) | |
152 throws UnmappedAddressException, UnalignedAddressException { | |
153 throw new DebuggerException("Unimplemented"); | |
154 } | |
155 public void setJLongAt (long offset, long value) | |
156 throws UnmappedAddressException, UnalignedAddressException { | |
157 throw new DebuggerException("Unimplemented"); | |
158 } | |
159 public void setJShortAt (long offset, short value) | |
160 throws UnmappedAddressException, UnalignedAddressException { | |
161 throw new DebuggerException("Unimplemented"); | |
162 } | |
163 public void setOopHandleAt (long offset, OopHandle value) | |
164 throws UnmappedAddressException, UnalignedAddressException { | |
165 throw new DebuggerException("Unimplemented"); | |
166 } | |
167 | |
168 // | |
169 // Arithmetic operations -- necessary evil. | |
170 // | |
171 | |
172 public Address addOffsetTo (long offset) throws UnsupportedOperationException { | |
173 long value = addr + offset; | |
174 if (value == 0) { | |
175 return null; | |
176 } | |
177 return new ProcAddress(debugger, value); | |
178 } | |
179 | |
180 public OopHandle addOffsetToAsOopHandle(long offset) throws UnsupportedOperationException { | |
181 long value = addr + offset; | |
182 if (value == 0) { | |
183 return null; | |
184 } | |
185 return new ProcOopHandle(debugger, value); | |
186 } | |
187 | |
188 /** (FIXME: any signed/unsigned issues? Should this work for | |
189 OopHandles?) */ | |
190 public long minus(Address arg) { | |
191 if (arg == null) { | |
192 return addr; | |
193 } | |
194 return addr - ((ProcAddress) arg).addr; | |
195 } | |
196 | |
197 // Two's complement representation. | |
198 // All negative numbers are larger than positive numbers. | |
199 // Numbers with the same sign can be compared normally. | |
200 // Test harness is below in main(). | |
201 | |
202 public boolean lessThan (Address arg) { | |
203 if (arg == null) { | |
204 return false; | |
205 } | |
206 ProcAddress dbxArg = (ProcAddress) arg; | |
207 if ((addr >= 0) && (dbxArg.addr < 0)) { | |
208 return true; | |
209 } | |
210 if ((addr < 0) && (dbxArg.addr >= 0)) { | |
211 return false; | |
212 } | |
213 return (addr < dbxArg.addr); | |
214 } | |
215 | |
216 public boolean lessThanOrEqual (Address arg) { | |
217 if (arg == null) { | |
218 return false; | |
219 } | |
220 ProcAddress dbxArg = (ProcAddress) arg; | |
221 if ((addr >= 0) && (dbxArg.addr < 0)) { | |
222 return true; | |
223 } | |
224 if ((addr < 0) && (dbxArg.addr >= 0)) { | |
225 return false; | |
226 } | |
227 return (addr <= dbxArg.addr); | |
228 } | |
229 | |
230 public boolean greaterThan (Address arg) { | |
231 if (arg == null) { | |
232 return true; | |
233 } | |
234 ProcAddress dbxArg = (ProcAddress) arg; | |
235 if ((addr >= 0) && (dbxArg.addr < 0)) { | |
236 return false; | |
237 } | |
238 if ((addr < 0) && (dbxArg.addr >= 0)) { | |
239 return true; | |
240 } | |
241 return (addr > dbxArg.addr); | |
242 } | |
243 | |
244 public boolean greaterThanOrEqual(Address arg) { | |
245 if (arg == null) { | |
246 return true; | |
247 } | |
248 ProcAddress dbxArg = (ProcAddress) arg; | |
249 if ((addr >= 0) && (dbxArg.addr < 0)) { | |
250 return false; | |
251 } | |
252 if ((addr < 0) && (dbxArg.addr >= 0)) { | |
253 return true; | |
254 } | |
255 return (addr >= dbxArg.addr); | |
256 } | |
257 | |
258 public Address andWithMask(long mask) throws UnsupportedOperationException { | |
259 long value = addr & mask; | |
260 if (value == 0) { | |
261 return null; | |
262 } | |
263 return new ProcAddress(debugger, value); | |
264 } | |
265 | |
266 public Address orWithMask(long mask) throws UnsupportedOperationException { | |
267 long value = addr | mask; | |
268 if (value == 0) { | |
269 return null; | |
270 } | |
271 return new ProcAddress(debugger, value); | |
272 } | |
273 | |
274 public Address xorWithMask(long mask) throws UnsupportedOperationException { | |
275 long value = addr ^ mask; | |
276 if (value == 0) { | |
277 return null; | |
278 } | |
279 return new ProcAddress(debugger, value); | |
280 } | |
281 | |
282 | |
283 //-------------------------------------------------------------------------------- | |
284 // Internals only below this point | |
285 // | |
286 | |
287 long getValue() { | |
288 return addr; | |
289 } | |
290 | |
291 | |
292 private static void check(boolean arg, String failMessage) { | |
293 if (!arg) { | |
294 System.err.println(failMessage + ": FAILED"); | |
295 System.exit(1); | |
296 } | |
297 } | |
298 | |
299 // Test harness | |
300 public static void main(String[] args) { | |
301 // p/n indicates whether the interior address is really positive | |
302 // or negative. In unsigned terms, p1 < p2 < n1 < n2. | |
303 | |
304 ProcAddress p1 = new ProcAddress(null, 0x7FFFFFFFFFFFFFF0L); | |
305 ProcAddress p2 = (ProcAddress) p1.addOffsetTo(10); | |
306 ProcAddress n1 = (ProcAddress) p2.addOffsetTo(10); | |
307 ProcAddress n2 = (ProcAddress) n1.addOffsetTo(10); | |
308 | |
309 // lessThan positive tests | |
310 check(p1.lessThan(p2), "lessThan 1"); | |
311 check(p1.lessThan(n1), "lessThan 2"); | |
312 check(p1.lessThan(n2), "lessThan 3"); | |
313 check(p2.lessThan(n1), "lessThan 4"); | |
314 check(p2.lessThan(n2), "lessThan 5"); | |
315 check(n1.lessThan(n2), "lessThan 6"); | |
316 | |
317 // lessThan negative tests | |
318 check(!p1.lessThan(p1), "lessThan 7"); | |
319 check(!p2.lessThan(p2), "lessThan 8"); | |
320 check(!n1.lessThan(n1), "lessThan 9"); | |
321 check(!n2.lessThan(n2), "lessThan 10"); | |
322 | |
323 check(!p2.lessThan(p1), "lessThan 11"); | |
324 check(!n1.lessThan(p1), "lessThan 12"); | |
325 check(!n2.lessThan(p1), "lessThan 13"); | |
326 check(!n1.lessThan(p2), "lessThan 14"); | |
327 check(!n2.lessThan(p2), "lessThan 15"); | |
328 check(!n2.lessThan(n1), "lessThan 16"); | |
329 | |
330 // lessThanOrEqual positive tests | |
331 check(p1.lessThanOrEqual(p1), "lessThanOrEqual 1"); | |
332 check(p2.lessThanOrEqual(p2), "lessThanOrEqual 2"); | |
333 check(n1.lessThanOrEqual(n1), "lessThanOrEqual 3"); | |
334 check(n2.lessThanOrEqual(n2), "lessThanOrEqual 4"); | |
335 | |
336 check(p1.lessThanOrEqual(p2), "lessThanOrEqual 5"); | |
337 check(p1.lessThanOrEqual(n1), "lessThanOrEqual 6"); | |
338 check(p1.lessThanOrEqual(n2), "lessThanOrEqual 7"); | |
339 check(p2.lessThanOrEqual(n1), "lessThanOrEqual 8"); | |
340 check(p2.lessThanOrEqual(n2), "lessThanOrEqual 9"); | |
341 check(n1.lessThanOrEqual(n2), "lessThanOrEqual 10"); | |
342 | |
343 // lessThanOrEqual negative tests | |
344 check(!p2.lessThanOrEqual(p1), "lessThanOrEqual 11"); | |
345 check(!n1.lessThanOrEqual(p1), "lessThanOrEqual 12"); | |
346 check(!n2.lessThanOrEqual(p1), "lessThanOrEqual 13"); | |
347 check(!n1.lessThanOrEqual(p2), "lessThanOrEqual 14"); | |
348 check(!n2.lessThanOrEqual(p2), "lessThanOrEqual 15"); | |
349 check(!n2.lessThanOrEqual(n1), "lessThanOrEqual 16"); | |
350 | |
351 // greaterThan positive tests | |
352 check(n2.greaterThan(p1), "greaterThan 1"); | |
353 check(n2.greaterThan(p2), "greaterThan 2"); | |
354 check(n2.greaterThan(n1), "greaterThan 3"); | |
355 check(n1.greaterThan(p1), "greaterThan 4"); | |
356 check(n1.greaterThan(p2), "greaterThan 5"); | |
357 check(p2.greaterThan(p1), "greaterThan 6"); | |
358 | |
359 // greaterThan negative tests | |
360 check(!p1.greaterThan(p1), "greaterThan 7"); | |
361 check(!p2.greaterThan(p2), "greaterThan 8"); | |
362 check(!n1.greaterThan(n1), "greaterThan 9"); | |
363 check(!n2.greaterThan(n2), "greaterThan 10"); | |
364 | |
365 check(!p1.greaterThan(n2), "greaterThan 11"); | |
366 check(!p2.greaterThan(n2), "greaterThan 12"); | |
367 check(!n1.greaterThan(n2), "greaterThan 13"); | |
368 check(!p1.greaterThan(n1), "greaterThan 14"); | |
369 check(!p2.greaterThan(n1), "greaterThan 15"); | |
370 check(!p1.greaterThan(p2), "greaterThan 16"); | |
371 | |
372 // greaterThanOrEqual positive tests | |
373 check(p1.greaterThanOrEqual(p1), "greaterThanOrEqual 1"); | |
374 check(p2.greaterThanOrEqual(p2), "greaterThanOrEqual 2"); | |
375 check(n1.greaterThanOrEqual(n1), "greaterThanOrEqual 3"); | |
376 check(n2.greaterThanOrEqual(n2), "greaterThanOrEqual 4"); | |
377 | |
378 check(n2.greaterThanOrEqual(p1), "greaterThanOrEqual 5"); | |
379 check(n2.greaterThanOrEqual(p2), "greaterThanOrEqual 6"); | |
380 check(n2.greaterThanOrEqual(n1), "greaterThanOrEqual 7"); | |
381 check(n1.greaterThanOrEqual(p1), "greaterThanOrEqual 8"); | |
382 check(n1.greaterThanOrEqual(p2), "greaterThanOrEqual 9"); | |
383 check(p2.greaterThanOrEqual(p1), "greaterThanOrEqual 10"); | |
384 | |
385 // greaterThanOrEqual negative tests | |
386 check(!p1.greaterThanOrEqual(n2), "greaterThanOrEqual 11"); | |
387 check(!p2.greaterThanOrEqual(n2), "greaterThanOrEqual 12"); | |
388 check(!n1.greaterThanOrEqual(n2), "greaterThanOrEqual 13"); | |
389 check(!p1.greaterThanOrEqual(n1), "greaterThanOrEqual 14"); | |
390 check(!p2.greaterThanOrEqual(n1), "greaterThanOrEqual 15"); | |
391 check(!p1.greaterThanOrEqual(p2), "greaterThanOrEqual 16"); | |
392 | |
393 System.err.println("ProcAddress: all tests passed successfully."); | |
394 } | |
395 } |