src/native/vm/sun_misc_Unsafe.cpp

   1 /* src/native/vm/sun_misc_Unsafe.cpp - sun/misc/Unsafe
   2
   3    Copyright (C) 2006, 2007, 2008, 2009, 2010
   4    CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
   5
   6    This file is part of CACAO.
   7
   8    This program is free software; you can redistribute it and/or
   9    modify it under the terms of the GNU General Public License as
  10    published by the Free Software Foundation; either version 2, or (at
  11    your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful, but
  14    WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16    General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  21    02110-1301, USA.
  22
  23 */
  24
  25
  26 #include "config.h"
  27
  28 #include <stdint.h>
  29 #include <unistd.h>
  30
  31 #include "threads/atomic.hpp"
  32
  33 #include "mm/memory.hpp"
  34
  35 #include "native/jni.hpp"
  36 #include "native/llni.h"
  37 #include "native/native.hpp"
  38
  39 #if defined(ENABLE_JNI_HEADERS)
  40 # include "native/include/sun_misc_Unsafe.h"
  41 #endif
  42
  43 #include "vm/array.hpp"
  44 #include "vm/jit/builtin.hpp"
  45 #include "vm/exceptions.hpp"
  46 #include "vm/initialize.hpp"
  47 #include "vm/javaobjects.hpp"
  48 #include "vm/os.hpp"
  49 #include "vm/string.hpp"
  50 #include "vm/utf8.h"
  51
  52
  53 // Native functions are exported as C functions.
  54 extern "C" {
  55
  56 /*
  57  * Class:     sun/misc/Unsafe
  58  * Method:    registerNatives
  59  * Signature: ()V
  60  */
  61 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_registerNatives(JNIEnv *env, jclass clazz)
  62 {
  63         /* The native methods of this function are already registered in
  64            _Jv_sun_misc_Unsafe_init() which is called during VM
  65            startup. */
  66 }
  67
  68
  69 /*
  70  * Class:     sun/misc/Unsafe
  71  * Method:    getInt
  72  * Signature: (Ljava/lang/Object;J)I
  73  */
  74 JNIEXPORT jint JNICALL Java_sun_misc_Unsafe_getInt__Ljava_lang_Object_2J(JNIEnv *env, jobject _this, jobject o, jlong offset)
  75 {
  76         return FieldAccess::get<int32_t>(o, offset);
  77 }
  78
  79
  80 /*
  81  * Class:     sun/misc/Unsafe
  82  * Method:    putInt
  83  * Signature: (Ljava/lang/Object;JI)V
  84  */
  85 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putInt__Ljava_lang_Object_2JI(JNIEnv *env, jobject _this, jobject o, jlong offset, jint x)
  86 {
  87         FieldAccess::set(o, offset, x);
  88 }
  89
  90
  91 /*
  92  * Class:     sun/misc/Unsafe
  93  * Method:    getObject
  94  * Signature: (Ljava/lang/Object;J)Ljava/lang/Object;
  95  */
  96 JNIEXPORT jobject JNICALL Java_sun_misc_Unsafe_getObject(JNIEnv *env, jobject _this, jobject o, jlong offset)
  97 {
  98         return FieldAccess::get<jobject>(o, offset);
  99 }
 100
 101
 102 /*
 103  * Class:     sun/misc/Unsafe
 104  * Method:    putObject
 105  * Signature: (Ljava/lang/Object;JLjava/lang/Object;)V
 106  */
 107 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putObject(JNIEnv *env, jobject _this, jobject o, jlong offset, jobject x)
 108 {
 109         FieldAccess::set(o, offset, x);
 110 }
 111
 112
 113 /*
 114  * Class:     sun/misc/Unsafe
 115  * Method:    getBoolean
 116  * Signature: (Ljava/lang/Object;J)Z
 117  */
 118 JNIEXPORT jboolean JNICALL Java_sun_misc_Unsafe_getBoolean(JNIEnv *env, jobject _this, jobject o, jlong offset)
 119 {
 120         return FieldAccess::get<int32_t>(o, offset);
 121 }
 122
 123
 124 /*
 125  * Class:     sun/misc/Unsafe
 126  * Method:    putBoolean
 127  * Signature: (Ljava/lang/Object;JZ)V
 128  */
 129 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putBoolean(JNIEnv *env, jobject _this, jobject o, jlong offset, jboolean x)
 130 {
 131         FieldAccess::set(o, offset, (int32_t) x);
 132 }
 133
 134
 135 /*
 136  * Class:     sun/misc/Unsafe
 137  * Method:    getByte
 138  * Signature: (Ljava/lang/Object;J)B
 139  */
 140 JNIEXPORT jbyte JNICALL Java_sun_misc_Unsafe_getByte__Ljava_lang_Object_2J(JNIEnv *env, jobject _this, jobject o, jlong offset)
 141 {
 142         return FieldAccess::get<int32_t>(o, offset);
 143 }
 144
 145
 146 /*
 147  * Class:     sun/misc/Unsafe
 148  * Method:    putByte
 149  * Signature: (Ljava/lang/Object;JB)V
 150  */
 151 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putByte__Ljava_lang_Object_2JB(JNIEnv *env, jobject _this, jobject o, jlong offset, jbyte x)
 152 {
 153         FieldAccess::set(o, offset, (int32_t) x);
 154 }
 155
 156
 157 /*
 158  * Class:     sun/misc/Unsafe
 159  * Method:    getShort
 160  * Signature: (Ljava/lang/Object;J)S
 161  */
 162 JNIEXPORT jshort JNICALL Java_sun_misc_Unsafe_getShort__Ljava_lang_Object_2J(JNIEnv *env, jobject _this, jobject o, jlong offset)
 163 {
 164         return FieldAccess::get<int32_t>(o, offset);
 165 }
 166
 167
 168 /*
 169  * Class:     sun/misc/Unsafe
 170  * Method:    putShort
 171  * Signature: (Ljava/lang/Object;JS)V
 172  */
 173 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putShort__Ljava_lang_Object_2JS(JNIEnv *env, jobject _this, jobject o, jlong offset, jshort x)
 174 {
 175         FieldAccess::set(o, offset, (int32_t) x);
 176 }
 177
 178
 179 /*
 180  * Class:     sun/misc/Unsafe
 181  * Method:    getChar
 182  * Signature: (Ljava/lang/Object;J)C
 183  */
 184 JNIEXPORT jchar JNICALL Java_sun_misc_Unsafe_getChar__Ljava_lang_Object_2J(JNIEnv *env, jobject _this, jobject o, jlong offset)
 185 {
 186         return FieldAccess::get<int32_t>(o, offset);
 187 }
 188
 189
 190 /*
 191  * Class:     sun/misc/Unsafe
 192  * Method:    putChar
 193  * Signature: (Ljava/lang/Object;JC)V
 194  */
 195 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putChar__Ljava_lang_Object_2JC(JNIEnv *env, jobject _this, jobject o, jlong offset, jchar x)
 196 {
 197         FieldAccess::set(o, offset, (int32_t) x);
 198 }
 199
 200
 201 /*
 202  * Class:     sun/misc/Unsafe
 203  * Method:    getLong
 204  * Signature: (Ljava/lang/Object;J)J
 205  */
 206 JNIEXPORT jlong JNICALL Java_sun_misc_Unsafe_getLong__Ljava_lang_Object_2J(JNIEnv *env, jobject _this, jobject o, jlong offset)
 207 {
 208         return FieldAccess::get<int64_t>(o, offset);
 209 }
 210
 211
 212 /*
 213  * Class:     sun/misc/Unsafe
 214  * Method:    putLong
 215  * Signature: (Ljava/lang/Object;JJ)V
 216  */
 217 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putLong__Ljava_lang_Object_2JJ(JNIEnv *env, jobject _this, jobject o, jlong offset, jlong x)
 218 {
 219         FieldAccess::set(o, offset, x);
 220 }
 221
 222
 223 /*
 224  * Class:     sun/misc/Unsafe
 225  * Method:    getFloat
 226  * Signature: (Ljava/lang/Object;J)F
 227  */
 228 JNIEXPORT jfloat JNICALL Java_sun_misc_Unsafe_getFloat__Ljava_lang_Object_2J(JNIEnv *env, jobject _this, jobject o, jlong offset)
 229 {
 230         return FieldAccess::get<float>(o, offset);
 231 }
 232
 233
 234 /*
 235  * Class:     sun/misc/Unsafe
 236  * Method:    putFloat
 237  * Signature: (Ljava/lang/Object;JF)V
 238  */
 239 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putFloat__Ljava_lang_Object_2JF(JNIEnv *env, jobject _this, jobject o, jlong offset, jfloat x)
 240 {
 241         FieldAccess::set(o, offset, x);
 242 }
 243
 244
 245 /*
 246  * Class:     sun/misc/Unsafe
 247  * Method:    getDouble
 248  * Signature: (Ljava/lang/Object;J)D
 249  */
 250 JNIEXPORT jdouble JNICALL Java_sun_misc_Unsafe_getDouble__Ljava_lang_Object_2J(JNIEnv *env, jobject _this, jobject o, jlong offset)
 251 {
 252         return FieldAccess::get<double>(o, offset);
 253 }
 254
 255
 256 /*
 257  * Class:     sun/misc/Unsafe
 258  * Method:    putDouble
 259  * Signature: (Ljava/lang/Object;JD)V
 260  */
 261 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putDouble__Ljava_lang_Object_2JD(JNIEnv *env, jobject _this, jobject o, jlong offset, jdouble x)
 262 {
 263         FieldAccess::set(o, offset, x);
 264 }
 265
 266
 267 /*
 268  * Class:     sun/misc/Unsafe
 269  * Method:    getByte
 270  * Signature: (J)B
 271  */
 272 JNIEXPORT jbyte JNICALL Java_sun_misc_Unsafe_getByte__J(JNIEnv *env, jobject _this, jlong address)
 273 {
 274         int8_t *p;
 275         int8_t  value;
 276
 277         p = (int8_t *) (intptr_t) address;
 278
 279         value = *p;
 280
 281         return (int32_t) value;
 282 }
 283
 284
 285 /*
 286  * Class:     sun/misc/Unsafe
 287  * Method:    putByte
 288  * Signature: (JB)V
 289  */
 290 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putByte__JB(JNIEnv *env, jobject _this, jlong address, jbyte value)
 291 {
 292         int8_t *p;
 293
 294         p = (int8_t *) (intptr_t) address;
 295
 296         *p = (int8_t) value;
 297 }
 298
 299
 300 /*
 301  * Class:     sun/misc/Unsafe
 302  * Method:    getShort
 303  * Signature: (J)S
 304  */
 305 JNIEXPORT jshort JNICALL Java_sun_misc_Unsafe_getShort__J(JNIEnv *env, jobject _this, jlong address)
 306 {
 307         int16_t *p;
 308         int16_t  value;
 309
 310         p = (int16_t *) (intptr_t) address;
 311
 312         value = *p;
 313
 314         return (int32_t) value;
 315 }
 316
 317
 318 /*
 319  * Class:     sun/misc/Unsafe
 320  * Method:    putShort
 321  * Signature: (JS)V
 322  */
 323 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putShort__JS(JNIEnv *env, jobject _this, jlong address, jshort value)
 324 {
 325         int16_t *p;
 326
 327         p = (int16_t *) (intptr_t) address;
 328
 329         *p = (int16_t) value;
 330 }
 331
 332
 333 /*
 334  * Class:     sun/misc/Unsafe
 335  * Method:    getChar
 336  * Signature: (J)C
 337  */
 338 JNIEXPORT jchar JNICALL Java_sun_misc_Unsafe_getChar__J(JNIEnv *env, jobject _this, jlong address)
 339 {
 340         uint16_t *p;
 341         uint16_t  value;
 342
 343         p = (uint16_t *) (intptr_t) address;
 344
 345         value = *p;
 346
 347         return (int32_t) value;
 348 }
 349
 350
 351 /*
 352  * Class:     sun/misc/Unsafe
 353  * Method:    putChar
 354  * Signature: (JC)V
 355  */
 356 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putChar__JC(JNIEnv *env, jobject _this, jlong address, jchar value)
 357 {
 358         uint16_t *p;
 359
 360         p = (uint16_t *) (intptr_t) address;
 361
 362         *p = (uint16_t) value;
 363 }
 364
 365
 366 /*
 367  * Class:     sun/misc/Unsafe
 368  * Method:    getInt
 369  * Signature: (J)I
 370  */
 371 JNIEXPORT jint JNICALL Java_sun_misc_Unsafe_getInt__J(JNIEnv *env, jobject _this, jlong address)
 372 {
 373         int32_t *p;
 374         int32_t  value;
 375
 376         p = (int32_t *) (intptr_t) address;
 377
 378         value = *p;
 379
 380         return value;
 381 }
 382
 383
 384 /*
 385  * Class:     sun/misc/Unsafe
 386  * Method:    putInt
 387  * Signature: (JI)V
 388  */
 389 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putInt__JI(JNIEnv *env, jobject _this, jlong address, jint value)
 390 {
 391         int32_t *p;
 392
 393         p = (int32_t *) (intptr_t) address;
 394
 395         *p = value;
 396 }
 397
 398
 399 /*
 400  * Class:     sun/misc/Unsafe
 401  * Method:    getLong
 402  * Signature: (J)J
 403  */
 404 JNIEXPORT jlong JNICALL Java_sun_misc_Unsafe_getLong__J(JNIEnv *env, jobject _this, jlong address)
 405 {
 406         int64_t *p;
 407         int64_t  value;
 408
 409         p = (int64_t *) (intptr_t) address;
 410
 411         value = *p;
 412
 413         return value;
 414 }
 415
 416
 417 /*
 418  * Class:     sun/misc/Unsafe
 419  * Method:    putLong
 420  * Signature: (JJ)V
 421  */
 422 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putLong__JJ(JNIEnv *env, jobject _this, jlong address, jlong value)
 423 {
 424         int64_t *p;
 425
 426         p = (int64_t *) (intptr_t) address;
 427
 428         *p = value;
 429 }
 430
 431
 432 /*
 433  * Class:     sun/misc/Unsafe
 434  * Method:    getFloat
 435  * Signature: (J)F
 436  */
 437 JNIEXPORT jfloat JNICALL Java_sun_misc_Unsafe_getFloat__J(JNIEnv *env, jobject _this, jlong address)
 438 {
 439         float *p;
 440         float  value;
 441
 442         p = (float *) (intptr_t) address;
 443
 444         value = *p;
 445
 446         return value;
 447 }
 448
 449
 450 /*
 451  * Class:     sun/misc/Unsafe
 452  * Method:    putFloat
 453  * Signature: (JF)V
 454  */
 455 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putFloat__JF(JNIEnv *env, jobject _this, jlong address, jfloat value)
 456 {
 457         float* p;
 458
 459         p = (float*) (intptr_t) address;
 460
 461         *p = value;
 462 }
 463
 464
 465 /*
 466  * Class:     sun/misc/Unsafe
 467  * Method:    getDouble
 468  * Signature: (J)D
 469  */
 470 JNIEXPORT jdouble JNICALL Java_sun_misc_Unsafe_getDouble__J(JNIEnv *env, jobject _this, jlong address)
 471 {
 472         double *p;
 473         double  value;
 474
 475         p = (double*) (intptr_t) address;
 476
 477         value = *p;
 478
 479         return value;
 480 }
 481
 482
 483 /*
 484  * Class:     sun/misc/Unsafe
 485  * Method:    putDouble
 486  * Signature: (JD)V
 487  */
 488 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putDouble__JD(JNIEnv *env, jobject _this, jlong address, jdouble value)
 489 {
 490         double* p;
 491
 492         p = (double*) (intptr_t) address;
 493
 494         *p = value;
 495 }
 496
 497
 498 /*
 499  * Class:     sun/misc/Unsafe
 500  * Method:    objectFieldOffset
 501  * Signature: (Ljava/lang/reflect/Field;)J
 502  */
 503 JNIEXPORT jlong JNICALL Java_sun_misc_Unsafe_objectFieldOffset(JNIEnv *env, jobject _this, jobject field)
 504 {
 505 #if defined(WITH_JAVA_RUNTIME_LIBRARY_GNU_CLASSPATH)
 506
 507         java_lang_reflect_Field rf(field);
 508         java_lang_reflect_VMField rvmf(rf.get_f());
 509         fieldinfo* f = rvmf.get_field();
 510
 511 #elif defined(WITH_JAVA_RUNTIME_LIBRARY_OPENJDK)
 512
 513         java_lang_reflect_Field rf(field);
 514         fieldinfo* f = rf.get_field();
 515
 516 #else
 517 # error unknown configuration
 518 #endif
 519
 520         return (jlong) f->offset;
 521 }
 522
 523
 524 /*
 525  * Class:     sun/misc/Unsafe
 526  * Method:    allocateMemory
 527  * Signature: (J)J
 528  */
 529 JNIEXPORT jlong JNICALL Java_sun_misc_Unsafe_allocateMemory(JNIEnv *env, jobject _this, jlong bytes)
 530 {
 531         size_t  length;
 532         void   *p;
 533
 534         length = (size_t) bytes;
 535
 536         if ((length != (uint64_t) bytes) || (bytes < 0)) {
 537                 exceptions_throw_illegalargumentexception();
 538                 return 0;
 539         }
 540
 541         p = MNEW(uint8_t, length);
 542
 543         return (int64_t) (intptr_t) p;
 544 }
 545
 546
 547 /* OpenJDK 7 */
 548
 549 /*
 550  * Class:     sun/misc/Unsafe
 551  * Method:    setMemory
 552  * Signature: (Ljava/lang/Object;JJB)V
 553  */
 554 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_setMemory_jdk7(JNIEnv *env, jobject _this, jobject o, jlong offset, jlong bytes, jbyte value)
 555 {
 556         size_t  length;
 557         void   *p;
 558
 559         length = (size_t) bytes;
 560
 561         if ((length != (uint64_t) bytes) || (bytes < 0)) {
 562                 exceptions_throw_illegalargumentexception();
 563                 return;
 564         }
 565
 566         /* XXX Missing LLNI: we need to unwrap _this object. */
 567
 568         p = (void *) (((uint8_t *) o) + offset);
 569
 570         /* XXX Not sure this is correct. */
 571
 572         os::memset(p, value, length);
 573 }
 574
 575
 576 /*
 577  * Class:     sun/misc/Unsafe
 578  * Method:    copyMemory
 579  * Signature: (Ljava/lang/Object;JLjava/lang/Object;JJ)V
 580  */
 581 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_copyMemory_jdk7(JNIEnv *env, jobject _this, jobject srcBase, jlong srcOffset, jobject destBase, jlong destOffset, jlong bytes)
 582 {
 583         size_t  length;
 584         void   *src;
 585         void   *dest;
 586
 587         if (bytes == 0)
 588                 return;
 589
 590         length = (size_t) bytes;
 591
 592         if ((length != (uint64_t) bytes) || (bytes < 0)) {
 593                 exceptions_throw_illegalargumentexception();
 594                 return;
 595         }
 596
 597         /* XXX Missing LLNI: We need to unwrap these objects. */
 598
 599         src  = (void *) (((uint8_t *) srcBase) + srcOffset);
 600         dest = (void *) (((uint8_t *) destBase) + destOffset);
 601
 602         os::memcpy(dest, src, length);
 603 }
 604
 605 /*
 606  * Class:     sun/misc/Unsafe
 607  * Method:    setMemory
 608  * Signature: (JJB)V
 609  */
 610 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_setMemory_jdk6(JNIEnv *env, jobject _this, jlong address, jlong bytes, jbyte value)
 611 {
 612         size_t  length;
 613         void   *p;
 614
 615         length = (size_t) bytes;
 616
 617         if ((length != (uint64_t) bytes) || (bytes < 0)) {
 618                 exceptions_throw_illegalargumentexception();
 619                 return;
 620         }
 621
 622         p = (void *) (intptr_t) address;
 623
 624         /* XXX Not sure this is correct. */
 625
 626         os::memset(p, value, length);
 627 }
 628
 629
 630 /*
 631  * Class:     sun/misc/Unsafe
 632  * Method:    copyMemory
 633  * Signature: (JJJ)V
 634  */
 635 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_copyMemory_jdk6(JNIEnv *env, jobject _this, jlong srcAddress, jlong destAddress, jlong bytes)
 636 {
 637         size_t  length;
 638         void   *src;
 639         void   *dest;
 640
 641         if (bytes == 0)
 642                 return;
 643
 644         length = (size_t) bytes;
 645
 646         if ((length != (uint64_t) bytes) || (bytes < 0)) {
 647                 exceptions_throw_illegalargumentexception();
 648                 return;
 649         }
 650
 651         src  = (void *) (intptr_t) srcAddress;
 652         dest = (void *) (intptr_t) destAddress;
 653
 654         os::memcpy(dest, src, length);
 655 }
 656
 657
 658 /*
 659  * Class:     sun/misc/Unsafe
 660  * Method:    freeMemory
 661  * Signature: (J)V
 662  */
 663 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_freeMemory(JNIEnv *env, jobject _this, jlong address)
 664 {
 665         void *p;
 666
 667         p = (void *) (intptr_t) address;
 668
 669         if (p == NULL)
 670                 return;
 671
 672         /* we pass length 1 to trick the free function */
 673
 674         MFREE(p, uint8_t, 1);
 675 }
 676
 677
 678 /*
 679  * Class:     sun/misc/Unsafe
 680  * Method:    staticFieldOffset
 681  * Signature: (Ljava/lang/reflect/Field;)J
 682  */
 683 JNIEXPORT jlong JNICALL Java_sun_misc_Unsafe_staticFieldOffset(JNIEnv *env, jobject _this, jobject f)
 684 {
 685         /* The offset of static fields is 0. */
 686
 687         return 0;
 688 }
 689
 690
 691 /*
 692  * Class:     sun/misc/Unsafe
 693  * Method:    staticFieldBase
 694  * Signature: (Ljava/lang/reflect/Field;)Ljava/lang/Object;
 695  */
 696 JNIEXPORT jobject JNICALL Java_sun_misc_Unsafe_staticFieldBase(JNIEnv *env, jobject _this, jobject field)
 697 {
 698 #if defined(WITH_JAVA_RUNTIME_LIBRARY_GNU_CLASSPATH)
 699
 700         java_lang_reflect_Field rf(field);
 701         java_lang_reflect_VMField rvmf(rf.get_f());
 702         fieldinfo* f = rvmf.get_field();
 703
 704 #elif defined(WITH_JAVA_RUNTIME_LIBRARY_OPENJDK)
 705
 706         java_lang_reflect_Field rf(field);
 707         fieldinfo* f = rf.get_field();
 708
 709 #else
 710 # error unknown configuration
 711 #endif
 712
 713         return (jobject) (f->value);
 714 }
 715
 716
 717 /*
 718  * Class:     sun/misc/Unsafe
 719  * Method:    ensureClassInitialized
 720  * Signature: (Ljava/lang/Class;)V
 721  */
 722 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_ensureClassInitialized(JNIEnv *env, jobject _this, jclass clazz)
 723 {
 724         classinfo *c;
 725
 726         c = LLNI_classinfo_unwrap(clazz);
 727
 728         if (!(c->state & CLASS_INITIALIZED))
 729                 initialize_class(c);
 730 }
 731
 732
 733 /*
 734  * Class:     sun/misc/Unsafe
 735  * Method:    arrayBaseOffset
 736  * Signature: (Ljava/lang/Class;)I
 737  */
 738 JNIEXPORT jint JNICALL Java_sun_misc_Unsafe_arrayBaseOffset(JNIEnv *env, jobject _this, jclass arrayClass)
 739 {
 740         classinfo       *c;
 741         arraydescriptor *ad;
 742
 743         c  = LLNI_classinfo_unwrap(arrayClass);
 744         ad = c->vftbl->arraydesc;
 745
 746         if (ad == NULL) {
 747                 /* XXX does that exception exist? */
 748                 exceptions_throw_internalerror("java/lang/InvalidClassException");
 749                 return 0;
 750         }
 751
 752         return ad->dataoffset;
 753 }
 754
 755
 756 /*
 757  * Class:     sun/misc/Unsafe
 758  * Method:    arrayIndexScale
 759  * Signature: (Ljava/lang/Class;)I
 760  */
 761 JNIEXPORT jint JNICALL Java_sun_misc_Unsafe_arrayIndexScale(JNIEnv *env, jobject _this, jclass arrayClass)
 762 {
 763         classinfo       *c;
 764         arraydescriptor *ad;
 765
 766         c  = LLNI_classinfo_unwrap(arrayClass);
 767         ad = c->vftbl->arraydesc;
 768
 769         if (ad == NULL) {
 770                 /* XXX does that exception exist? */
 771                 exceptions_throw_internalerror("java/lang/InvalidClassException");
 772                 return 0;
 773         }
 774
 775         return ad->componentsize;
 776 }
 777
 778
 779 /*
 780  * Class:     sun/misc/Unsafe
 781  * Method:    addressSize
 782  * Signature: ()I
 783  */
 784 JNIEXPORT jint JNICALL Java_sun_misc_Unsafe_addressSize(JNIEnv *env, jobject _this)
 785 {
 786         return SIZEOF_VOID_P;
 787 }
 788
 789
 790 /*
 791  * Class:     sun/misc/Unsafe
 792  * Method:    pageSize
 793  * Signature: ()I
 794  */
 795 JNIEXPORT jint JNICALL Java_sun_misc_Unsafe_pageSize(JNIEnv *env, jobject _this)
 796 {
 797         int sz;
 798
 799         sz = getpagesize();
 800
 801         return sz;
 802 }
 803
 804
 805 /*
 806  * Class:     sun/misc/Unsafe
 807  * Method:    defineClass
 808  * Signature: (Ljava/lang/String;[BIILjava/lang/ClassLoader;Ljava/security/ProtectionDomain;)Ljava/lang/Class;
 809  */
 810 JNIEXPORT jclass JNICALL Java_sun_misc_Unsafe_defineClass__Ljava_lang_String_2_3BIILjava_lang_ClassLoader_2Ljava_security_ProtectionDomain_2(JNIEnv *env, jobject _this, jstring name, jbyteArray b, jint off, jint len, jobject loader, jobject protectionDomain)
 811 {
 812         classloader_t   *cl;
 813         utf             *utfname;
 814         classinfo       *c;
 815
 816         cl = loader_hashtable_classloader_add((java_handle_t *) loader);
 817
 818         /* check if data was passed */
 819
 820         if (b == NULL) {
 821                 exceptions_throw_nullpointerexception();
 822                 return NULL;
 823         }
 824
 825         /* check the indexes passed */
 826
 827         ByteArray ba(b);
 828
 829         if ((off < 0) || (len < 0) || ((off + len) > ba.get_length())) {
 830                 exceptions_throw_arrayindexoutofboundsexception();
 831                 return NULL;
 832         }
 833
 834         if (name != NULL) {
 835                 /* convert '.' to '/' in java string */
 836
 837                 utfname = javastring_toutf((java_handle_t *) name, true);
 838         }
 839         else {
 840                 utfname = NULL;
 841         }
 842
 843         /* define the class */
 844
 845         uint8_t* ptr = ((uint8_t*) ba.get_raw_data_ptr()) + off;
 846         c = class_define(utfname, cl, len, ptr,
 847                                          (java_handle_t *) protectionDomain);
 848
 849         if (c == NULL)
 850                 return NULL;
 851
 852         java_handle_t* h = LLNI_classinfo_wrap(c);
 853
 854 #if defined(WITH_JAVA_RUNTIME_LIBRARY_GNU_CLASSPATH)
 855         // Set ProtectionDomain.
 856         java_lang_Class jlc(h);
 857         jlc.set_pd(protectionDomain);
 858 #endif
 859
 860         return (jclass) h;
 861 }
 862
 863
 864 /*
 865  * Class:     sun/misc/Unsafe
 866  * Method:    allocateInstance
 867  * Signature: (Ljava/lang/Class;)Ljava/lang/Object;
 868  */
 869 JNIEXPORT jobject JNICALL Java_sun_misc_Unsafe_allocateInstance(JNIEnv *env, jobject _this, jclass cls)
 870 {
 871         classinfo     *c;
 872         java_handle_t *o;
 873
 874         c = LLNI_classinfo_unwrap(cls);
 875
 876         o = builtin_new(c);
 877
 878         return (jobject ) o;
 879 }
 880
 881
 882 /*
 883  * Class:     sun/misc/Unsafe
 884  * Method:    throwException
 885  * Signature: (Ljava/lang/Throwable;)V
 886  */
 887 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_throwException(JNIEnv *env, jobject _this, jobject ee)
 888 {
 889         java_handle_t *o;
 890
 891         o = (java_handle_t *) ee;
 892
 893         exceptions_set_exception(o);
 894 }
 895
 896
 897 /*
 898  * Class:     sun/misc/Unsafe
 899  * Method:    compareAndSwapObject
 900  * Signature: (Ljava/lang/Object;JLjava/lang/Object;Ljava/lang/Object;)Z
 901  */
 902 JNIEXPORT jboolean JNICALL Java_sun_misc_Unsafe_compareAndSwapObject(JNIEnv *env, jobject _this, jobject o, jlong offset, jobject expected, jobject x)
 903 {
 904         void **p;
 905         void           *result;
 906
 907         /* XXX Use LLNI */
 908
 909         p = (void **) (((uint8_t *) o) + offset);
 910
 911         result = Atomic::compare_and_swap(p, (void *) expected, (void *) x);
 912 #if defined(CAS_PROVIDES_FULL_BARRIER) && CAS_PROVIDES_FULL_BARRIER
 913         Atomic::instruction_barrier();
 914 #else
 915         Atomic::memory_barrier();
 916 #endif
 917
 918         if (result == expected)
 919                 return true;
 920
 921         return false;
 922 }
 923
 924
 925 /*
 926  * Class:     sun/misc/Unsafe
 927  * Method:    compareAndSwapInt
 928  * Signature: (Ljava/lang/Object;JII)Z
 929  */
 930 JNIEXPORT jboolean JNICALL Java_sun_misc_Unsafe_compareAndSwapInt(JNIEnv *env, jobject _this, jobject o, jlong offset, jint expected, jint x)
 931 {
 932         uint32_t *p;
 933         uint32_t  result;
 934
 935         /* XXX Use LLNI */
 936
 937         p = (uint32_t *) (((uint8_t *) o) + offset);
 938
 939         result = Atomic::compare_and_swap(p, (uint32_t) expected, (uint32_t) x);
 940 #if defined(CAS_PROVIDES_FULL_BARRIER) && CAS_PROVIDES_FULL_BARRIER
 941         Atomic::instruction_barrier();
 942 #else
 943         Atomic::memory_barrier();
 944 #endif
 945
 946         if (result == (uint32_t) expected)
 947                 return true;
 948
 949         return false;
 950 }
 951
 952
 953 /*
 954  * Class:     sun/misc/Unsafe
 955  * Method:    compareAndSwapLong
 956  * Signature: (Ljava/lang/Object;JJJ)Z
 957  */
 958 JNIEXPORT jboolean JNICALL Java_sun_misc_Unsafe_compareAndSwapLong(JNIEnv *env, jobject _this, jobject o, jlong offset, jlong expected, jlong x)
 959 {
 960         uint64_t *p;
 961         uint64_t  result;
 962
 963         /* XXX Use LLNI */
 964
 965         p = (uint64_t *) (((uint8_t *) o) + offset);
 966
 967         result = Atomic::compare_and_swap(p, (uint64_t) expected, (uint64_t) x);
 968 #if defined(CAS_PROVIDES_FULL_BARRIER) && CAS_PROVIDES_FULL_BARRIER
 969         Atomic::instruction_barrier();
 970 #else
 971         Atomic::memory_barrier();
 972 #endif
 973
 974         if (result == (uint64_t) expected)
 975                 return true;
 976
 977         return false;
 978 }
 979
 980
 981 /*
 982  * Class:     sun/misc/Unsafe
 983  * Method:    getObjectVolatile
 984  * Signature: (Ljava/lang/Object;J)Ljava/lang/Object;
 985  */
 986 JNIEXPORT jobject JNICALL Java_sun_misc_Unsafe_getObjectVolatile(JNIEnv *env, jobject _this, jobject o, jlong offset)
 987 {
 988         return FieldAccess::get_volatile<jobject>(o, offset);
 989 }
 990
 991
 992 /*
 993  * Class:     sun/misc/Unsafe
 994  * Method:    putObjectVolatile
 995  * Signature: (Ljava/lang/Object;JLjava/lang/Object;)V
 996  */
 997 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putObjectVolatile(JNIEnv *env, jobject _this, jobject o, jlong offset, jobject x)
 998 {
 999         FieldAccess::set_volatile(o, offset, x);
1000 }
1001
1002
1003 /*
1004  * Class:     sun/misc/Unsafe
1005  * Method:    getBooleanVolatile
1006  * Signature: (Ljava/lang/Object;J)Z
1007  */
1008 JNIEXPORT jboolean JNICALL Java_sun_misc_Unsafe_getBooleanVolatile(JNIEnv* env, jobject _this, jobject o, jlong offset)
1009 {
1010         return FieldAccess::get_volatile<int32_t>(o, offset);
1011 }
1012
1013
1014 /*
1015  * Class:     sun/misc/Unsafe
1016  * Method:    putBooleanVolatile
1017  * Signature: (Ljava/lang/Object;JZ)V
1018  */
1019 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putBooleanVolatile (JNIEnv *env, jobject _this, jobject o, jlong offset, jboolean x)
1020 {
1021         FieldAccess::set_volatile(o, offset, x);
1022 }
1023
1024
1025 /*
1026  * Class:     sun/misc/Unsafe
1027  * Method:    getByteVolatile
1028  * Signature: (Ljava/lang/Object;J)B
1029  */
1030 JNIEXPORT jbyte JNICALL Java_sun_misc_Unsafe_getByteVolatile(JNIEnv* env, jobject _this, jobject o, jlong offset)
1031 {
1032         return FieldAccess::get_volatile<int32_t>(o, offset);
1033 }
1034
1035
1036 /*
1037  * Class:     sun/misc/Unsafe
1038  * Method:    putByteVolatile
1039  * Signature: (Ljava/lang/Object;JB)V
1040  */
1041 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putByteVolatile (JNIEnv *env, jobject _this, jobject o, jlong offset, jbyte x)
1042 {
1043         FieldAccess::set_volatile(o, offset, x);
1044 }
1045
1046
1047 /*
1048  * Class:     sun/misc/Unsafe
1049  * Method:    getShortVolatile
1050  * Signature: (Ljava/lang/Object;J)S
1051  */
1052 JNIEXPORT jshort JNICALL Java_sun_misc_Unsafe_getShortVolatile(JNIEnv* env, jobject _this, jobject o, jlong offset)
1053 {
1054         return FieldAccess::get_volatile<int32_t>(o, offset);
1055 }
1056
1057
1058 /*
1059  * Class:     sun/misc/Unsafe
1060  * Method:    putShortVolatile
1061  * Signature: (Ljava/lang/Object;JS)V
1062  */
1063 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putShortVolatile (JNIEnv *env, jobject _this, jobject o, jlong offset, jshort x)
1064 {
1065         FieldAccess::set_volatile(o, offset, x);
1066 }
1067
1068
1069 /*
1070  * Class:     sun/misc/Unsafe
1071  * Method:    getCharVolatile
1072  * Signature: (Ljava/lang/Object;J)C
1073  */
1074 JNIEXPORT jchar JNICALL Java_sun_misc_Unsafe_getCharVolatile(JNIEnv* env, jobject _this, jobject o, jlong offset)
1075 {
1076         return FieldAccess::get_volatile<int32_t>(o, offset);
1077 }
1078
1079
1080 /*
1081  * Class:     sun/misc/Unsafe
1082  * Method:    putCharVolatile
1083  * Signature: (Ljava/lang/Object;JC)V
1084  */
1085 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putCharVolatile (JNIEnv *env, jobject _this, jobject o, jlong offset, jchar x)
1086 {
1087         FieldAccess::set_volatile(o, offset, x);
1088 }
1089
1090
1091 /*
1092  * Class:     sun/misc/Unsafe
1093  * Method:    getIntVolatile
1094  * Signature: (Ljava/lang/Object;J)I
1095  */
1096 JNIEXPORT jint JNICALL Java_sun_misc_Unsafe_getIntVolatile(JNIEnv *env, jobject _this, jobject o, jlong offset)
1097 {
1098         return FieldAccess::get_volatile<int32_t>(o, offset);
1099 }
1100
1101
1102 /*
1103  * Class:     sun/misc/Unsafe
1104  * Method:    putIntVolatile
1105  * Signature: (Ljava/lang/Object;JI)V
1106  */
1107 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putIntVolatile(JNIEnv *env, jobject _this, jobject o, jlong offset, jint x)
1108 {
1109         FieldAccess::set_volatile(o, offset, x);
1110 }
1111
1112
1113 /*
1114  * Class:     sun/misc/Unsafe
1115  * Method:    getLongVolatile
1116  * Signature: (Ljava/lang/Object;J)J
1117  */
1118 JNIEXPORT jlong JNICALL Java_sun_misc_Unsafe_getLongVolatile(JNIEnv *env, jobject _this, jobject o, jlong offset)
1119 {
1120         return FieldAccess::get_volatile<int64_t>(o, offset);
1121 }
1122
1123
1124 /*
1125  * Class:     sun/misc/Unsafe
1126  * Method:    putLongVolatile
1127  * Signature: (Ljava/lang/Object;JJ)V
1128  */
1129 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putLongVolatile(JNIEnv *env, jobject _this, jobject o, jlong offset, jlong x)
1130 {
1131         FieldAccess::set_volatile(o, offset, x);
1132 }
1133
1134
1135 /*
1136  * Class:     sun/misc/Unsafe
1137  * Method:    getFloatVolatile
1138  * Signature: (Ljava/lang/Object;J)F
1139  */
1140 JNIEXPORT jfloat JNICALL Java_sun_misc_Unsafe_getFloatVolatile(JNIEnv* env, jobject _this, jobject o, jlong offset)
1141 {
1142         return FieldAccess::get_volatile<float>(o, offset);
1143 }
1144
1145
1146 /*
1147  * Class:     sun/misc/Unsafe
1148  * Method:    putFloatVolatile
1149  * Signature: (Ljava/lang/Object;JF)V
1150  */
1151 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putFloatVolatile (JNIEnv *env, jobject _this, jobject o, jlong offset, jfloat x)
1152 {
1153         FieldAccess::set_volatile(o, offset, x);
1154 }
1155
1156
1157 /*
1158  * Class:     sun/misc/Unsafe
1159  * Method:    getDoubleVolatile
1160  * Signature: (Ljava/lang/Object;J)D
1161  */
1162 JNIEXPORT jdouble JNICALL Java_sun_misc_Unsafe_getDoubleVolatile(JNIEnv *env, jobject _this, jobject o, jlong offset)
1163 {
1164         return FieldAccess::get_volatile<double>(o, offset);
1165 }
1166
1167
1168 /*
1169  * Class:     sun/misc/Unsafe
1170  * Method:    putDoubleVolatile
1171  * Signature: (Ljava/lang/Object;JD)V
1172  */
1173 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putDoubleVolatile (JNIEnv *env, jobject _this, jobject o, jlong offset, jdouble x)
1174 {
1175         FieldAccess::set_volatile(o, offset, x);
1176 }
1177
1178
1179 /*
1180  * Class:     sun/misc/Unsafe
1181  * Method:    putOrderedObject
1182  * Signature: (Ljava/lang/Object;JLjava/lang/Object;)V
1183  */
1184 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putOrderedObject(JNIEnv *env, jobject _this, jobject o, jlong offset, jobject x)
1185 {
1186         FieldAccess::set_volatile(o, offset, x);
1187 }
1188
1189
1190 /*
1191  * Class:     sun/misc/Unsafe
1192  * Method:    putOrderedInt
1193  * Signature: (Ljava/lang/Object;JI)V
1194  */
1195 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putOrderedInt(JNIEnv *env, jobject _this, jobject o, jlong offset, jint x)
1196 {
1197         FieldAccess::set_volatile(o, offset, x);
1198 }
1199
1200
1201 /*
1202  * Class:     sun/misc/Unsafe
1203  * Method:    putOrderedLong
1204  * Signature: (Ljava/lang/Object;JJ)V
1205  */
1206 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putOrderedLong(JNIEnv *env, jobject _this, jobject o, jlong offset, jlong x)
1207 {
1208         FieldAccess::set_volatile(o, offset, x);
1209 }
1210
1211
1212 /*
1213  * Class:     sun/misc/Unsafe
1214  * Method:    unpark
1215  * Signature: (Ljava/lang/Object;)V
1216  */
1217 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_unpark(JNIEnv *env, jobject _this, jobject thread)
1218 {
1219         java_handle_t *h = (java_handle_t *) thread;
1220         threadobject *t;
1221
1222 #if defined(WITH_JAVA_RUNTIME_LIBRARY_GNU_CLASSPATH)
1223         h = java_lang_Thread(h).get_vmThread();
1224 #endif
1225         t = thread_get_thread(h);
1226
1227         threads_unpark(t);
1228 }
1229
1230
1231 /*
1232  * Class:     sun/misc/Unsafe
1233  * Method:    park
1234  * Signature: (ZJ)V
1235  */
1236 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_park(JNIEnv *env, jobject _this, jboolean isAbsolute, jlong time)
1237 {
1238         threads_park(isAbsolute, time);
1239 }
1240
1241
1242 /*
1243  * Class:     sun/misc/Unsafe
1244  * Method:    getLoadAverage
1245  * Signature: ([DI)I
1246  */
1247 JNIEXPORT jint JNICALL Java_sun_misc_Unsafe_getLoadAverage(JNIEnv *env, jobject _this, jdoubleArray loadavg, jint nelem)
1248 {
1249         DoubleArray da(loadavg);
1250
1251 #define MAX_SAMPLES 3
1252
1253         // Check the passed number of samples.
1254         if ((nelem < 0) || (nelem > da.get_length()) || nelem > MAX_SAMPLES) {
1255                 exceptions_throw_arrayindexoutofboundsexception();
1256                 return -1;
1257         }
1258
1259         // Actually retrieve samples.
1260         double values[MAX_SAMPLES];
1261         int result = os::getloadavg(values, nelem);
1262
1263         // Save samples into the given array.
1264         for (int i = 0; i < result; i++) {
1265                 da.set_element(i, values[i]);
1266         }
1267
1268         return result;
1269 }
1270
1271 } // extern "C"
1272
1273
1274 /* native methods implemented by this file ************************************/
1275
1276 static JNINativeMethod methods[] = {
1277         { (char*) "registerNatives",        (char*) "()V",                                                        (void*) (uintptr_t) &Java_sun_misc_Unsafe_registerNatives                  },
1278         { (char*) "getInt",                 (char*) "(Ljava/lang/Object;J)I",                                     (void*) (uintptr_t) &Java_sun_misc_Unsafe_getInt__Ljava_lang_Object_2J     },
1279         { (char*) "putInt",                 (char*) "(Ljava/lang/Object;JI)V",                                    (void*) (uintptr_t) &Java_sun_misc_Unsafe_putInt__Ljava_lang_Object_2JI    },
1280         { (char*) "getObject",              (char*) "(Ljava/lang/Object;J)Ljava/lang/Object;",                    (void*) (uintptr_t) &Java_sun_misc_Unsafe_getObject                        },
1281         { (char*) "putObject",              (char*) "(Ljava/lang/Object;JLjava/lang/Object;)V",                   (void*) (uintptr_t) &Java_sun_misc_Unsafe_putObject                        },
1282         { (char*) "getBoolean",             (char*) "(Ljava/lang/Object;J)Z",                                     (void*) (uintptr_t) &Java_sun_misc_Unsafe_getBoolean                       },
1283         { (char*) "putBoolean",             (char*) "(Ljava/lang/Object;JZ)V",                                    (void*) (uintptr_t) &Java_sun_misc_Unsafe_putBoolean                       },
1284         { (char*) "getByte",                (char*) "(Ljava/lang/Object;J)B",                                     (void*) (uintptr_t) &Java_sun_misc_Unsafe_getByte__Ljava_lang_Object_2J    },
1285         { (char*) "putByte",                (char*) "(Ljava/lang/Object;JB)V",                                    (void*) (uintptr_t) &Java_sun_misc_Unsafe_putByte__Ljava_lang_Object_2JB   },
1286         { (char*) "getShort",               (char*) "(Ljava/lang/Object;J)S",                                     (void*) (uintptr_t) &Java_sun_misc_Unsafe_getShort__Ljava_lang_Object_2J   },
1287         { (char*) "putShort",               (char*) "(Ljava/lang/Object;JS)V",                                    (void*) (uintptr_t) &Java_sun_misc_Unsafe_putShort__Ljava_lang_Object_2JS  },
1288         { (char*) "getChar",                (char*) "(Ljava/lang/Object;J)C",                                     (void*) (uintptr_t) &Java_sun_misc_Unsafe_getChar__Ljava_lang_Object_2J    },
1289         { (char*) "putChar",                (char*) "(Ljava/lang/Object;JC)V",                                    (void*) (uintptr_t) &Java_sun_misc_Unsafe_putChar__Ljava_lang_Object_2JC   },
1290         { (char*) "getLong",                (char*) "(Ljava/lang/Object;J)J",                                     (void*) (uintptr_t) &Java_sun_misc_Unsafe_getLong__Ljava_lang_Object_2J    },
1291         { (char*) "putLong",                (char*) "(Ljava/lang/Object;JJ)V",                                    (void*) (uintptr_t) &Java_sun_misc_Unsafe_putLong__Ljava_lang_Object_2JJ   },
1292         { (char*) "getFloat",               (char*) "(Ljava/lang/Object;J)F",                                     (void*) (uintptr_t) &Java_sun_misc_Unsafe_getFloat__Ljava_lang_Object_2J   },
1293         { (char*) "putFloat",               (char*) "(Ljava/lang/Object;JF)V",                                    (void*) (uintptr_t) &Java_sun_misc_Unsafe_putFloat__Ljava_lang_Object_2JF  },
1294         { (char*) "getDouble",              (char*) "(Ljava/lang/Object;J)D",                                     (void*) (uintptr_t) &Java_sun_misc_Unsafe_getDouble__Ljava_lang_Object_2J  },
1295         { (char*) "putDouble",              (char*) "(Ljava/lang/Object;JD)V",                                    (void*) (uintptr_t) &Java_sun_misc_Unsafe_putDouble__Ljava_lang_Object_2JD },
1296         { (char*) "getByte",                (char*) "(J)B",                                                       (void*) (uintptr_t) &Java_sun_misc_Unsafe_getByte__J                       },
1297         { (char*) "putByte",                (char*) "(JB)V",                                                      (void*) (uintptr_t) &Java_sun_misc_Unsafe_putByte__JB                      },
1298         { (char*) "getShort",               (char*) "(J)S",                                                       (void*) (uintptr_t) &Java_sun_misc_Unsafe_getShort__J                      },
1299         { (char*) "putShort",               (char*) "(JS)V",                                                      (void*) (uintptr_t) &Java_sun_misc_Unsafe_putShort__JS                     },
1300         { (char*) "getChar",                (char*) "(J)C",                                                       (void*) (uintptr_t) &Java_sun_misc_Unsafe_getChar__J                       },
1301         { (char*) "putChar",                (char*) "(JC)V",                                                      (void*) (uintptr_t) &Java_sun_misc_Unsafe_putChar__JC                      },
1302         { (char*) "getInt",                 (char*) "(J)I",                                                       (void*) (uintptr_t) &Java_sun_misc_Unsafe_getInt__J                        },
1303         { (char*) "putInt",                 (char*) "(JI)V",                                                      (void*) (uintptr_t) &Java_sun_misc_Unsafe_putInt__JI                       },
1304         { (char*) "getLong",                (char*) "(J)J",                                                       (void*) (uintptr_t) &Java_sun_misc_Unsafe_getLong__J                       },
1305         { (char*) "putLong",                (char*) "(JJ)V",                                                      (void*) (uintptr_t) &Java_sun_misc_Unsafe_putLong__JJ                      },
1306         { (char*) "getFloat",               (char*) "(J)F",                                                       (void*) (uintptr_t) &Java_sun_misc_Unsafe_getFloat__J                      },
1307         { (char*) "putFloat",               (char*) "(JF)V",                                                      (void*) (uintptr_t) &Java_sun_misc_Unsafe_putFloat__JF                     },
1308         { (char*) "getDouble",              (char*) "(J)D",                                                       (void*) (uintptr_t) &Java_sun_misc_Unsafe_getDouble__J                     },
1309         { (char*) "putDouble",              (char*) "(JD)V",                                                      (void*) (uintptr_t) &Java_sun_misc_Unsafe_putDouble__JD                    },
1310         { (char*) "objectFieldOffset",      (char*) "(Ljava/lang/reflect/Field;)J",                               (void*) (uintptr_t) &Java_sun_misc_Unsafe_objectFieldOffset                },
1311         { (char*) "allocateMemory",         (char*) "(J)J",                                                       (void*) (uintptr_t) &Java_sun_misc_Unsafe_allocateMemory                   },
1312         // next two methods: OpenJDK 7
1313         { (char*) "setMemory",              (char*) "(Ljava/lang/Object;JJB)V",                                   (void*) (uintptr_t) &Java_sun_misc_Unsafe_setMemory_jdk7                   },
1314         { (char*) "copyMemory",             (char*) "(Ljava/lang/Object;JLjava/lang/Object;JJ)V",                 (void*) (uintptr_t) &Java_sun_misc_Unsafe_copyMemory_jdk7                  },
1315         // next two methods: OpenJDK 6
1316         { (char*) "setMemory",              (char*) "(JJB)V",                                                     (void*) (uintptr_t) &Java_sun_misc_Unsafe_setMemory_jdk6                   },
1317         { (char*) "copyMemory",             (char*) "(JJJ)V",                                                     (void*) (uintptr_t) &Java_sun_misc_Unsafe_copyMemory_jdk6                  },
1318         { (char*) "freeMemory",             (char*) "(J)V",                                                       (void*) (uintptr_t) &Java_sun_misc_Unsafe_freeMemory                       },
1319         { (char*) "staticFieldOffset",      (char*) "(Ljava/lang/reflect/Field;)J",                               (void*) (uintptr_t) &Java_sun_misc_Unsafe_staticFieldOffset                },
1320         { (char*) "staticFieldBase",        (char*) "(Ljava/lang/reflect/Field;)Ljava/lang/Object;",              (void*) (uintptr_t) &Java_sun_misc_Unsafe_staticFieldBase                  },
1321         { (char*) "ensureClassInitialized", (char*) "(Ljava/lang/Class;)V",                                       (void*) (uintptr_t) &Java_sun_misc_Unsafe_ensureClassInitialized           },
1322         { (char*) "arrayBaseOffset",        (char*) "(Ljava/lang/Class;)I",                                       (void*) (uintptr_t) &Java_sun_misc_Unsafe_arrayBaseOffset                  },
1323         { (char*) "arrayIndexScale",        (char*) "(Ljava/lang/Class;)I",                                       (void*) (uintptr_t) &Java_sun_misc_Unsafe_arrayIndexScale                  },
1324         { (char*) "addressSize",            (char*) "()I",                                                        (void*) (uintptr_t) &Java_sun_misc_Unsafe_addressSize                      },
1325         { (char*) "pageSize",               (char*) "()I",                                                        (void*) (uintptr_t) &Java_sun_misc_Unsafe_pageSize                         },
1326         { (char*) "defineClass",            (char*) "(Ljava/lang/String;[BIILjava/lang/ClassLoader;Ljava/security/ProtectionDomain;)Ljava/lang/Class;", (void*) (uintptr_t) &Java_sun_misc_Unsafe_defineClass__Ljava_lang_String_2_3BIILjava_lang_ClassLoader_2Ljava_security_ProtectionDomain_2 },
1327         { (char*) "allocateInstance",       (char*) "(Ljava/lang/Class;)Ljava/lang/Object;",                      (void*) (uintptr_t) &Java_sun_misc_Unsafe_allocateInstance                 },
1328         { (char*) "throwException",         (char*) "(Ljava/lang/Throwable;)V",                                   (void*) (uintptr_t) &Java_sun_misc_Unsafe_throwException                   },
1329         { (char*) "compareAndSwapObject",   (char*) "(Ljava/lang/Object;JLjava/lang/Object;Ljava/lang/Object;)Z", (void*) (uintptr_t) &Java_sun_misc_Unsafe_compareAndSwapObject             },
1330         { (char*) "compareAndSwapInt",      (char*) "(Ljava/lang/Object;JII)Z",                                   (void*) (uintptr_t) &Java_sun_misc_Unsafe_compareAndSwapInt                },
1331         { (char*) "compareAndSwapLong",     (char*) "(Ljava/lang/Object;JJJ)Z",                                   (void*) (uintptr_t) &Java_sun_misc_Unsafe_compareAndSwapLong               },
1332         { (char*) "getObjectVolatile",      (char*) "(Ljava/lang/Object;J)Ljava/lang/Object;",                    (void*) (uintptr_t) &Java_sun_misc_Unsafe_getObjectVolatile                },
1333         { (char*) "putObjectVolatile",      (char*) "(Ljava/lang/Object;JLjava/lang/Object;)V",                   (void*) (uintptr_t) &Java_sun_misc_Unsafe_putObjectVolatile                },
1334         { (char*) "getBooleanVolatile",     (char*) "(Ljava/lang/Object;J)Z",                                     (void*) (uintptr_t) &Java_sun_misc_Unsafe_getBooleanVolatile               },
1335         { (char*) "putBooleanVolatile",     (char*) "(Ljava/lang/Object;JZ)V",                                    (void*) (uintptr_t) &Java_sun_misc_Unsafe_putBooleanVolatile               },
1336         { (char*) "getByteVolatile",        (char*) "(Ljava/lang/Object;J)B",                                     (void*) (uintptr_t) &Java_sun_misc_Unsafe_getByteVolatile                  },
1337         { (char*) "putByteVolatile",        (char*) "(Ljava/lang/Object;JB)V",                                    (void*) (uintptr_t) &Java_sun_misc_Unsafe_putByteVolatile                  },
1338         { (char*) "getShortVolatile",       (char*) "(Ljava/lang/Object;J)S",                                     (void*) (uintptr_t) &Java_sun_misc_Unsafe_getShortVolatile                 },
1339         { (char*) "putShortVolatile",       (char*) "(Ljava/lang/Object;JS)V",                                    (void*) (uintptr_t) &Java_sun_misc_Unsafe_putShortVolatile                 },
1340         { (char*) "getCharVolatile",        (char*) "(Ljava/lang/Object;J)C",                                     (void*) (uintptr_t) &Java_sun_misc_Unsafe_getCharVolatile                  },
1341         { (char*) "putCharVolatile",        (char*) "(Ljava/lang/Object;JC)V",                                    (void*) (uintptr_t) &Java_sun_misc_Unsafe_putCharVolatile                  },
1342         { (char*) "getIntVolatile",         (char*) "(Ljava/lang/Object;J)I",                                     (void*) (uintptr_t) &Java_sun_misc_Unsafe_getIntVolatile                   },
1343         { (char*) "putIntVolatile",         (char*) "(Ljava/lang/Object;JI)V",                                    (void*) (uintptr_t) &Java_sun_misc_Unsafe_putIntVolatile                   },
1344         { (char*) "getLongVolatile",        (char*) "(Ljava/lang/Object;J)J",                                     (void*) (uintptr_t) &Java_sun_misc_Unsafe_getLongVolatile                  },
1345         { (char*) "putLongVolatile",        (char*) "(Ljava/lang/Object;JJ)V",                                    (void*) (uintptr_t) &Java_sun_misc_Unsafe_putLongVolatile                  },
1346         { (char*) "getFloatVolatile",       (char*) "(Ljava/lang/Object;J)F",                                     (void*) (uintptr_t) &Java_sun_misc_Unsafe_getFloatVolatile                 },
1347         { (char*) "putFloatVolatile",       (char*) "(Ljava/lang/Object;JF)V",                                    (void*) (uintptr_t) &Java_sun_misc_Unsafe_putFloatVolatile                 },
1348         { (char*) "getDoubleVolatile",      (char*) "(Ljava/lang/Object;J)D",                                     (void*) (uintptr_t) &Java_sun_misc_Unsafe_getDoubleVolatile                },
1349         { (char*) "putDoubleVolatile",      (char*) "(Ljava/lang/Object;JD)V",                                    (void*) (uintptr_t) &Java_sun_misc_Unsafe_putDoubleVolatile                },
1350         { (char*) "putOrderedObject",       (char*) "(Ljava/lang/Object;JLjava/lang/Object;)V",                   (void*) (uintptr_t) &Java_sun_misc_Unsafe_putOrderedObject                 },
1351         { (char*) "putOrderedInt",          (char*) "(Ljava/lang/Object;JI)V",                                    (void*) (uintptr_t) &Java_sun_misc_Unsafe_putOrderedInt                    },
1352         { (char*) "putOrderedLong",         (char*) "(Ljava/lang/Object;JJ)V",                                    (void*) (uintptr_t) &Java_sun_misc_Unsafe_putOrderedLong                   },
1353         { (char*) "unpark",                 (char*) "(Ljava/lang/Object;)V",                                      (void*) (uintptr_t) &Java_sun_misc_Unsafe_unpark                           },
1354         { (char*) "park",                   (char*) "(ZJ)V",                                                      (void*) (uintptr_t) &Java_sun_misc_Unsafe_park                             },
1355         { (char*) "getLoadAverage",         (char*) "([DI)I",                                                     (void*) (uintptr_t) &Java_sun_misc_Unsafe_getLoadAverage                   },
1356 };
1357
1358
1359 /* _Jv_sun_misc_Unsafe_init ****************************************************
1360
1361    Register native functions.
1362
1363 *******************************************************************************/
1364
1365 void _Jv_sun_misc_Unsafe_init(void)
1366 {
1367         utf* u = utf_new_char("sun/misc/Unsafe");
1368
1369         NativeMethods& nm = VM::get_current()->get_nativemethods();
1370         nm.register_methods(u, methods, NATIVE_METHODS_COUNT);
1371 }
1372
1373
1374 /*
1375  * These are local overrides for various environment variables in Emacs.
1376  * Please do not remove this and leave it at the end of the file, where
1377  * Emacs will automagically detect them.
1378  * ---------------------------------------------------------------------
1379  * Local variables:
1380  * mode: c++
1381  * indent-tabs-mode: t
1382  * c-basic-offset: 4
1383  * tab-width: 4
1384  * End:
1385  * vim:noexpandtab:sw=4:ts=4:
1386  */