Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/debugger/linux/LinuxAddress.java @ 17524:89152779163c
Merge with jdk8-b132
| author | Gilles Duboscq <duboscq@ssw.jku.at> |
|---|---|
| date | Wed, 15 Oct 2014 11:59:32 +0200 |
| parents | 4ca6dc0799b6 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 17524 | 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 | |
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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 | |
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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 } |