1 /* src/native/vm/sun_misc_Unsafe.c - sun/misc/Unsafe
3 Copyright (C) 2006, 2007 R. Grafl, A. Krall, C. Kruegel, C. Oates,
4 R. Obermaisser, M. Platter, M. Probst, S. Ring, E. Steiner,
5 C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich, J. Wenninger,
6 Institut f. Computersprachen - TU Wien
8 This file is part of CACAO.
10 This program is free software; you can redistribute it and/or
11 modify it under the terms of the GNU General Public License as
12 published by the Free Software Foundation; either version 2, or (at
13 your option) any later version.
15 This program is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
33 #include "mm/memory.h"
35 #include "native/jni.h"
36 #include "native/llni.h"
37 #include "native/native.h"
39 #include "native/include/java_lang_Object.h" /* before c.l.C */
40 #include "native/include/java_lang_String.h" /* required by j.l.CL */
42 #if defined(WITH_CLASSPATH_SUN)
43 # include "native/include/java_nio_ByteBuffer.h" /* required by j.l.CL */
46 #include "native/include/java_lang_ClassLoader.h" /* required by j.l.C */
47 #include "native/include/java_lang_Class.h"
48 #include "native/include/java_lang_reflect_Field.h"
49 #include "native/include/java_lang_Thread.h" /* required by s.m.U */
50 #include "native/include/java_lang_Throwable.h"
52 #include "native/include/java_security_ProtectionDomain.h" /* required by smU */
54 #include "native/include/sun_misc_Unsafe.h"
56 #include "vm/builtin.h"
57 #include "vm/exceptions.h"
58 #include "vm/initialize.h"
59 #include "vm/stringlocal.h"
61 #include "vmcore/utf8.h"
64 /* native methods implemented by this file ************************************/
66 static JNINativeMethod methods[] = {
67 { "registerNatives", "()V", (void *) (intptr_t) &Java_sun_misc_Unsafe_registerNatives },
68 { "getInt", "(Ljava/lang/Object;J)I", (void *) (intptr_t) &Java_sun_misc_Unsafe_getInt__Ljava_lang_Object_2J },
69 { "putInt", "(Ljava/lang/Object;JI)V", (void *) (intptr_t) &Java_sun_misc_Unsafe_putInt__Ljava_lang_Object_2JI },
70 { "getObject", "(Ljava/lang/Object;J)Ljava/lang/Object;", (void *) (intptr_t) &Java_sun_misc_Unsafe_getObject },
71 { "putObject", "(Ljava/lang/Object;JLjava/lang/Object;)V", (void *) (intptr_t) &Java_sun_misc_Unsafe_putObject },
72 { "getBoolean", "(Ljava/lang/Object;J)Z", (void *) (intptr_t) &Java_sun_misc_Unsafe_getBoolean },
73 { "putBoolean", "(Ljava/lang/Object;JZ)V", (void *) (intptr_t) &Java_sun_misc_Unsafe_putBoolean },
74 { "getByte", "(Ljava/lang/Object;J)B", (void *) (intptr_t) &Java_sun_misc_Unsafe_getByte__Ljava_lang_Object_2J },
75 { "putByte", "(Ljava/lang/Object;JB)V", (void *) (intptr_t) &Java_sun_misc_Unsafe_putByte__Ljava_lang_Object_2JB },
76 { "putShort", "(Ljava/lang/Object;JS)V", (void *) (intptr_t) &Java_sun_misc_Unsafe_putShort__Ljava_lang_Object_2JS },
77 { "getChar", "(Ljava/lang/Object;J)C", (void *) (intptr_t) &Java_sun_misc_Unsafe_getChar__Ljava_lang_Object_2J },
78 { "putChar", "(Ljava/lang/Object;JC)V", (void *) (intptr_t) &Java_sun_misc_Unsafe_putChar__Ljava_lang_Object_2JC },
79 { "getLong", "(Ljava/lang/Object;J)J", (void *) (intptr_t) &Java_sun_misc_Unsafe_getLong__Ljava_lang_Object_2J },
80 { "getFloat", "(Ljava/lang/Object;J)F", (void *) (intptr_t) &Java_sun_misc_Unsafe_getFloat__Ljava_lang_Object_2J },
81 { "putFloat", "(Ljava/lang/Object;JF)V", (void *) (intptr_t) &Java_sun_misc_Unsafe_putFloat__Ljava_lang_Object_2JF },
82 { "getByte", "(J)B", (void *) (intptr_t) &Java_sun_misc_Unsafe_getByte__J },
83 { "putByte", "(JB)V", (void *) (intptr_t) &Java_sun_misc_Unsafe_putByte__JB },
84 { "getShort", "(J)S", (void *) (intptr_t) &Java_sun_misc_Unsafe_getShort__J },
85 { "putShort", "(JS)V", (void *) (intptr_t) &Java_sun_misc_Unsafe_putShort__JS },
86 { "getInt", "(J)I", (void *) (intptr_t) &Java_sun_misc_Unsafe_getInt__J },
87 { "putInt", "(JI)V", (void *) (intptr_t) &Java_sun_misc_Unsafe_putInt__JI },
88 { "getLong", "(J)J", (void *) (intptr_t) &Java_sun_misc_Unsafe_getLong__J },
89 { "putLong", "(JJ)V", (void *) (intptr_t) &Java_sun_misc_Unsafe_putLong__JJ },
90 { "getFloat", "(J)F", (void *) (intptr_t) &Java_sun_misc_Unsafe_getFloat__J },
91 { "objectFieldOffset", "(Ljava/lang/reflect/Field;)J", (void *) (intptr_t) &Java_sun_misc_Unsafe_objectFieldOffset },
92 { "allocateMemory", "(J)J", (void *) (intptr_t) &Java_sun_misc_Unsafe_allocateMemory },
93 { "setMemory", "(Ljava/lang/Object;JJB)V", (void *) (intptr_t) &Java_sun_misc_Unsafe_setMemory },
94 { "freeMemory", "(J)V", (void *) (intptr_t) &Java_sun_misc_Unsafe_freeMemory },
95 { "staticFieldOffset", "(Ljava/lang/reflect/Field;)J", (void *) (intptr_t) &Java_sun_misc_Unsafe_staticFieldOffset },
96 { "staticFieldBase", "(Ljava/lang/reflect/Field;)Ljava/lang/Object;", (void *) (intptr_t) &Java_sun_misc_Unsafe_staticFieldBase },
97 { "ensureClassInitialized", "(Ljava/lang/Class;)V", (void *) (intptr_t) &Java_sun_misc_Unsafe_ensureClassInitialized },
98 { "arrayBaseOffset", "(Ljava/lang/Class;)I", (void *) (intptr_t) &Java_sun_misc_Unsafe_arrayBaseOffset },
99 { "arrayIndexScale", "(Ljava/lang/Class;)I", (void *) (intptr_t) &Java_sun_misc_Unsafe_arrayIndexScale },
100 { "addressSize", "()I", (void *) (intptr_t) &Java_sun_misc_Unsafe_addressSize },
101 { "pageSize", "()I", (void *) (intptr_t) &Java_sun_misc_Unsafe_pageSize },
102 { "defineClass", "(Ljava/lang/String;[BIILjava/lang/ClassLoader;Ljava/security/ProtectionDomain;)Ljava/lang/Class;", (void *) (intptr_t) &Java_sun_misc_Unsafe_defineClass__Ljava_lang_String_2_3BIILjava_lang_ClassLoader_2Ljava_security_ProtectionDomain_2 },
103 { "allocateInstance", "(Ljava/lang/Class;)Ljava/lang/Object;", (void *) (intptr_t) &Java_sun_misc_Unsafe_allocateInstance },
104 { "throwException", "(Ljava/lang/Throwable;)V", (void *) (intptr_t) &Java_sun_misc_Unsafe_throwException },
105 { "compareAndSwapObject", "(Ljava/lang/Object;JLjava/lang/Object;Ljava/lang/Object;)Z", (void *) (intptr_t) &Java_sun_misc_Unsafe_compareAndSwapObject },
106 { "compareAndSwapInt", "(Ljava/lang/Object;JII)Z", (void *) (intptr_t) &Java_sun_misc_Unsafe_compareAndSwapInt },
107 { "compareAndSwapLong", "(Ljava/lang/Object;JJJ)Z", (void *) (intptr_t) &Java_sun_misc_Unsafe_compareAndSwapLong },
108 { "getObjectVolatile", "(Ljava/lang/Object;J)Ljava/lang/Object;", (void *) (intptr_t) &Java_sun_misc_Unsafe_getObjectVolatile },
109 { "getIntVolatile", "(Ljava/lang/Object;J)I", (void *) (intptr_t) &Java_sun_misc_Unsafe_getIntVolatile },
110 { "getLongVolatile", "(Ljava/lang/Object;J)J", (void *) (intptr_t) &Java_sun_misc_Unsafe_getLongVolatile },
111 { "unpark", "(Ljava/lang/Object;)V", (void *) (intptr_t) &Java_sun_misc_Unsafe_unpark },
112 { "park", "(ZJ)V", (void *) (intptr_t) &Java_sun_misc_Unsafe_park },
116 /* _Jv_sun_misc_Unsafe_init ****************************************************
118 Register native functions.
120 *******************************************************************************/
122 void _Jv_sun_misc_Unsafe_init(void)
126 u = utf_new_char("sun/misc/Unsafe");
128 native_method_register(u, methods, NATIVE_METHODS_COUNT);
133 * Class: sun/misc/Unsafe
134 * Method: registerNatives
137 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_registerNatives(JNIEnv *env, jclass clazz)
139 /* The native methods of this function are already registered in
140 _Jv_sun_misc_Unsafe_init() which is called during VM
146 * Class: sun/misc/Unsafe
148 * Signature: (Ljava/lang/Object;J)I
150 JNIEXPORT int32_t JNICALL Java_sun_misc_Unsafe_getInt__Ljava_lang_Object_2J(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Object *o, int64_t offset)
155 p = (int32_t *) (((uint8_t *) o) + offset);
164 * Class: sun/misc/Unsafe
166 * Signature: (Ljava/lang/Object;JI)V
168 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putInt__Ljava_lang_Object_2JI(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Object *o, int64_t offset, int32_t x)
172 p = (int32_t *) (((uint8_t *) o) + offset);
179 * Class: sun/misc/Unsafe
181 * Signature: (Ljava/lang/Object;J)Ljava/lang/Object;
183 JNIEXPORT java_lang_Object* JNICALL Java_sun_misc_Unsafe_getObject(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Object *o, int64_t offset)
188 p = (void **) (((uint8_t *) o) + offset);
197 * Class: sun/misc/Unsafe
199 * Signature: (Ljava/lang/Object;JLjava/lang/Object;)V
201 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putObject(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Object *o, int64_t offset, java_lang_Object *x)
205 p = (void **) (((uint8_t *) o) + offset);
212 * Class: sun/misc/Unsafe
214 * Signature: (Ljava/lang/Object;J)Z
216 JNIEXPORT int32_t JNICALL Java_sun_misc_Unsafe_getBoolean(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Object *o, int64_t offset)
221 p = (int32_t *) (((uint8_t *) o) + offset);
230 * Class: sun/misc/Unsafe
232 * Signature: (Ljava/lang/Object;JZ)V
234 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putBoolean(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Object *o, int64_t offset, int32_t x)
238 p = (int32_t *) (((uint8_t *) o) + offset);
245 * Class: sun/misc/Unsafe
247 * Signature: (Ljava/lang/Object;J)B
249 JNIEXPORT int32_t JNICALL Java_sun_misc_Unsafe_getByte__Ljava_lang_Object_2J(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Object *o, int64_t offset)
254 p = (int32_t *) (((uint8_t *) o) + offset);
263 * Class: sun/misc/Unsafe
265 * Signature: (Ljava/lang/Object;JB)V
267 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putByte__Ljava_lang_Object_2JB(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Object *o, int64_t offset, int32_t x)
271 p = (int32_t *) (((uint8_t *) o) + offset);
278 * Class: sun/misc/Unsafe
280 * Signature: (Ljava/lang/Object;JS)V
282 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putShort__Ljava_lang_Object_2JS(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Object *o, int64_t offset, int32_t x)
286 p = (int32_t *) (((uint8_t *) o) + offset);
293 * Class: sun/misc/Unsafe
295 * Signature: (Ljava/lang/Object;J)C
297 JNIEXPORT int32_t JNICALL Java_sun_misc_Unsafe_getChar__Ljava_lang_Object_2J(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Object *o, int64_t offset)
302 p = (int32_t *) (((uint8_t *) o) + offset);
311 * Class: sun/misc/Unsafe
313 * Signature: (Ljava/lang/Object;JC)V
315 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putChar__Ljava_lang_Object_2JC(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Object *o, int64_t offset, int32_t x)
319 p = (int32_t *) (((uint8_t *) o) + offset);
326 * Class: sun/misc/Unsafe
328 * Signature: (Ljava/lang/Object;J)J
330 JNIEXPORT int64_t JNICALL Java_sun_misc_Unsafe_getLong__Ljava_lang_Object_2J(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Object *o, int64_t offset)
335 p = (int64_t *) (((uint8_t *) o) + offset);
344 * Class: sun/misc/Unsafe
346 * Signature: (Ljava/lang/Object;J)F
348 JNIEXPORT float JNICALL Java_sun_misc_Unsafe_getFloat__Ljava_lang_Object_2J(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Object *o, int64_t offset)
353 p = (float *) (((uint8_t *) o) + offset);
362 * Class: sun/misc/Unsafe
364 * Signature: (Ljava/lang/Object;JF)V
366 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putFloat__Ljava_lang_Object_2JF(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Object *o, int64_t offset, float x)
370 p = (float *) (((uint8_t *) o) + offset);
377 * Class: sun/misc/Unsafe
381 JNIEXPORT int32_t JNICALL Java_sun_misc_Unsafe_getByte__J(JNIEnv *env, sun_misc_Unsafe *this, int64_t address)
386 p = (int8_t *) (intptr_t) address;
390 return (int32_t) value;
395 * Class: sun/misc/Unsafe
399 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putByte__JB(JNIEnv *env, sun_misc_Unsafe *this, int64_t address, int32_t value)
403 p = (int8_t *) (intptr_t) address;
410 * Class: sun/misc/Unsafe
414 JNIEXPORT int32_t JNICALL Java_sun_misc_Unsafe_getShort__J(JNIEnv *env, sun_misc_Unsafe *this, int64_t address)
419 p = (int16_t *) (intptr_t) address;
423 return (int32_t) value;
428 * Class: sun/misc/Unsafe
432 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putShort__JS(JNIEnv *env, sun_misc_Unsafe *this, int64_t address, int32_t value)
436 p = (int16_t *) (intptr_t) address;
438 *p = (int16_t) value;
443 * Class: sun/misc/Unsafe
447 JNIEXPORT int32_t JNICALL Java_sun_misc_Unsafe_getInt__J(JNIEnv *env, sun_misc_Unsafe *this, int64_t address)
452 p = (int32_t *) (intptr_t) address;
461 * Class: sun/misc/Unsafe
465 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putInt__JI(JNIEnv *env, struct sun_misc_Unsafe* this, int64_t address, int32_t value)
469 p = (int32_t *) (intptr_t) address;
476 * Class: sun/misc/Unsafe
480 JNIEXPORT int64_t JNICALL Java_sun_misc_Unsafe_getLong__J(JNIEnv *env, sun_misc_Unsafe *this, int64_t address)
485 p = (int64_t *) (intptr_t) address;
494 * Class: sun/misc/Unsafe
498 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putLong__JJ(JNIEnv *env, sun_misc_Unsafe *this, int64_t address, int64_t value)
502 p = (int64_t *) (intptr_t) address;
509 * Class: sun/misc/Unsafe
513 JNIEXPORT float JNICALL Java_sun_misc_Unsafe_getFloat__J(JNIEnv *env, sun_misc_Unsafe *this, int64_t address)
518 p = (float *) (intptr_t) address;
527 * Class: sun/misc/Unsafe
528 * Method: objectFieldOffset
529 * Signature: (Ljava/lang/reflect/Field;)J
531 JNIEXPORT int64_t JNICALL Java_sun_misc_Unsafe_objectFieldOffset(JNIEnv *env, sun_misc_Unsafe *this, java_lang_reflect_Field *field)
537 LLNI_field_get_cls(field, clazz, c);
538 LLNI_field_get_val(field, slot , slot);
540 f = &c->fields[slot];
542 return (int64_t) f->offset;
547 * Class: sun/misc/Unsafe
548 * Method: allocateMemory
551 JNIEXPORT int64_t JNICALL Java_sun_misc_Unsafe_allocateMemory(JNIEnv *env, sun_misc_Unsafe *this, int64_t bytes)
556 length = (size_t) bytes;
558 if ((length != (uint64_t) bytes) || (bytes < 0)) {
559 exceptions_throw_illegalargumentexception();
563 p = MNEW(uint8_t, length);
565 return (int64_t) (intptr_t) p;
570 * Class: sun/misc/Unsafe
572 * Signature: (Ljava/lang/Object;JJB)V
574 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_setMemory(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Object *o, int64_t offset, int64_t bytes, int32_t value)
579 length = (size_t) bytes;
581 if ((length != (uint64_t) bytes) || (bytes < 0)) {
582 exceptions_throw_illegalargumentexception();
586 /* XXX Missing LLNI: we need to unwrap this object. */
588 p = (void *) (((uint8_t *) o) + offset);
590 /* XXX Not sure this is correct. */
592 MSET(p, value, uint8_t, length);
597 * Class: sun/misc/Unsafe
601 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_freeMemory(JNIEnv *env, sun_misc_Unsafe *this, int64_t address)
605 p = (void *) (intptr_t) address;
610 /* we pass length 1 to trick the free function */
612 MFREE(p, uint8_t, 1);
617 * Class: sun/misc/Unsafe
618 * Method: staticFieldOffset
619 * Signature: (Ljava/lang/reflect/Field;)J
621 JNIEXPORT int64_t JNICALL Java_sun_misc_Unsafe_staticFieldOffset(JNIEnv *env, sun_misc_Unsafe *this, java_lang_reflect_Field *field)
627 LLNI_field_get_cls(field, clazz, c);
628 LLNI_field_get_val(field, slot , slot);
629 f = &(c->fields[slot]);
631 return (int64_t) (intptr_t) f->value;
636 * Class: sun/misc/Unsafe
637 * Method: staticFieldBase
638 * Signature: (Ljava/lang/reflect/Field;)Ljava/lang/Object;
640 JNIEXPORT java_lang_Object* JNICALL Java_sun_misc_Unsafe_staticFieldBase(JNIEnv *env, sun_misc_Unsafe *this, java_lang_reflect_Field *f)
642 /* In CACAO we return the absolute address in staticFieldOffset. */
649 * Class: sun/misc/Unsafe
650 * Method: ensureClassInitialized
651 * Signature: (Ljava/lang/Class;)V
653 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_ensureClassInitialized(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Class *class)
657 c = LLNI_classinfo_unwrap(class);
659 if (!(c->state & CLASS_INITIALIZED))
665 * Class: sun/misc/Unsafe
666 * Method: arrayBaseOffset
667 * Signature: (Ljava/lang/Class;)I
669 JNIEXPORT int32_t JNICALL Java_sun_misc_Unsafe_arrayBaseOffset(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Class *arrayClass)
674 c = LLNI_classinfo_unwrap(arrayClass);
675 ad = c->vftbl->arraydesc;
678 /* XXX does that exception exist? */
679 exceptions_throw_internalerror("java/lang/InvalidClassException");
683 return ad->dataoffset;
688 * Class: sun/misc/Unsafe
689 * Method: arrayIndexScale
690 * Signature: (Ljava/lang/Class;)I
692 JNIEXPORT int32_t JNICALL Java_sun_misc_Unsafe_arrayIndexScale(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Class *arrayClass)
697 c = LLNI_classinfo_unwrap(arrayClass);
698 ad = c->vftbl->arraydesc;
701 /* XXX does that exception exist? */
702 exceptions_throw_internalerror("java/lang/InvalidClassException");
706 return ad->componentsize;
711 * Class: sun/misc/Unsafe
712 * Method: addressSize
715 JNIEXPORT int32_t JNICALL Java_sun_misc_Unsafe_addressSize(JNIEnv *env, sun_misc_Unsafe *this)
717 return SIZEOF_VOID_P;
722 * Class: sun/misc/Unsafe
726 JNIEXPORT int32_t JNICALL Java_sun_misc_Unsafe_pageSize(JNIEnv *env, sun_misc_Unsafe *this)
737 * Class: sun/misc/Unsafe
738 * Method: defineClass
739 * Signature: (Ljava/lang/String;[BIILjava/lang/ClassLoader;Ljava/security/ProtectionDomain;)Ljava/lang/Class;
741 JNIEXPORT java_lang_Class* JNICALL Java_sun_misc_Unsafe_defineClass__Ljava_lang_String_2_3BIILjava_lang_ClassLoader_2Ljava_security_ProtectionDomain_2(JNIEnv *env, sun_misc_Unsafe *this, java_lang_String *name, java_handle_bytearray_t *b, int32_t off, int32_t len, java_lang_ClassLoader *loader, java_security_ProtectionDomain *protectionDomain)
748 cl = loader_hashtable_classloader_add((java_handle_t *) loader);
750 /* check if data was passed */
753 exceptions_throw_nullpointerexception();
757 /* check the indexes passed */
759 if ((off < 0) || (len < 0) || ((off + len) > LLNI_array_size(b))) {
760 exceptions_throw_arrayindexoutofboundsexception();
765 /* convert '.' to '/' in java string */
767 utfname = javastring_toutf((java_handle_t *) name, true);
773 /* define the class */
775 c = class_define(utfname, cl, len, (const uint8_t *) &b->data[off],
781 /* for convenience */
783 o = LLNI_classinfo_wrap(c);
785 #if defined(WITH_CLASSPATH_GNU)
786 /* set ProtectionDomain */
788 LLNI_field_set_ref(o, pd, protectionDomain);
796 * Class: sun/misc/Unsafe
797 * Method: allocateInstance
798 * Signature: (Ljava/lang/Class;)Ljava/lang/Object;
800 JNIEXPORT java_lang_Object* JNICALL Java_sun_misc_Unsafe_allocateInstance(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Class *cls)
805 c = LLNI_classinfo_unwrap(cls);
809 return (java_lang_Object *) o;
814 * Class: sun/misc/Unsafe
815 * Method: throwException
816 * Signature: (Ljava/lang/Throwable;)V
818 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_throwException(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Throwable *ee)
822 o = (java_handle_t *) ee;
824 exceptions_set_exception(o);
829 * Class: sun/misc/Unsafe
830 * Method: compareAndSwapObject
831 * Signature: (Ljava/lang/Object;JLjava/lang/Object;Ljava/lang/Object;)Z
833 JNIEXPORT int32_t JNICALL Java_sun_misc_Unsafe_compareAndSwapObject(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Object *o, int64_t offset, java_lang_Object *expected, java_lang_Object *x)
838 p = (void **) (((uint8_t *) o) + offset);
840 /* XXX this should be atomic */
844 if (value == expected) {
855 * Class: sun/misc/Unsafe
856 * Method: compareAndSwapInt
857 * Signature: (Ljava/lang/Object;JII)Z
859 JNIEXPORT int32_t JNICALL Java_sun_misc_Unsafe_compareAndSwapInt(JNIEnv *env, sun_misc_Unsafe* this, java_lang_Object* obj, int64_t offset, int32_t expect, int32_t update)
864 p = (int32_t *) (((uint8_t *) obj) + offset);
866 /* XXX this should be atomic */
870 if (value == expect) {
881 * Class: sun/misc/Unsafe
882 * Method: compareAndSwapLong
883 * Signature: (Ljava/lang/Object;JJJ)Z
885 JNIEXPORT int32_t JNICALL Java_sun_misc_Unsafe_compareAndSwapLong(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Object *o, int64_t offset, int64_t expected, int64_t x)
890 p = (int64_t *) (((uint8_t *) o) + offset);
892 /* XXX this should be atomic */
896 if (value == expected) {
907 * Class: sun/misc/Unsafe
908 * Method: getObjectVolatile
909 * Signature: (Ljava/lang/Object;J)Ljava/lang/Object;
911 JNIEXPORT java_lang_Object* JNICALL Java_sun_misc_Unsafe_getObjectVolatile(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Object *o, int64_t offset)
914 volatile void *value;
916 p = (volatile void **) (((uint8_t *) o) + offset);
920 return (java_lang_Object *) value;
925 * Class: sun/misc/Unsafe
926 * Method: getIntVolatile
927 * Signature: (Ljava/lang/Object;J)I
929 JNIEXPORT int32_t JNICALL Java_sun_misc_Unsafe_getIntVolatile(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Object *o, int64_t offset)
932 volatile int32_t value;
934 p = (volatile int32_t *) (((uint8_t *) o) + offset);
943 * Class: sun/misc/Unsafe
944 * Method: getLongVolatile
945 * Signature: (Ljava/lang/Object;J)J
947 JNIEXPORT int64_t JNICALL Java_sun_misc_Unsafe_getLongVolatile(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Object *o, int64_t offset)
950 volatile int64_t value;
952 p = (volatile int64_t *) (((uint8_t *) o) + offset);
961 * Class: sun/misc/Unsafe
963 * Signature: (Ljava/lang/Object;)V
965 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_unpark(JNIEnv *env, sun_misc_Unsafe *this, java_lang_Object *thread)
967 /* XXX IMPLEMENT ME */
972 * Class: sun/misc/Unsafe
976 JNIEXPORT void JNICALL Java_sun_misc_Unsafe_park(JNIEnv *env, sun_misc_Unsafe *this, int32_t isAbsolute, int64_t time)
978 /* XXX IMPLEMENT ME */
983 * These are local overrides for various environment variables in Emacs.
984 * Please do not remove this and leave it at the end of the file, where
985 * Emacs will automagically detect them.
986 * ---------------------------------------------------------------------
989 * indent-tabs-mode: t