Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/prims/unsafe.cpp
src/share/vm/prims/unsafe.cpp
- changeset 4542
- db9981fd3124
- parent 4361
- 1e41b0bc58a0
- child 4866
- 16885e702c88
equal
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replaced
| 4461:46e60405583b | 4542:db9981fd3124 |
|---|---|
| 22 * | 22 * |
| 23 */ | 23 */ |
| 24 | 24 |
| 25 #include "precompiled.hpp" | 25 #include "precompiled.hpp" |
| 26 #include "classfile/vmSymbols.hpp" | 26 #include "classfile/vmSymbols.hpp" |
| 27 #ifndef SERIALGC | 27 #include "utilities/macros.hpp" |
| 28 #if INCLUDE_ALL_GCS | |
| 28 #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp" | 29 #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp" |
| 29 #endif // SERIALGC | 30 #endif // INCLUDE_ALL_GCS |
| 30 #include "memory/allocation.inline.hpp" | 31 #include "memory/allocation.inline.hpp" |
| 31 #include "prims/jni.h" | 32 #include "prims/jni.h" |
| 32 #include "prims/jvm.h" | 33 #include "prims/jvm.h" |
| 33 #include "runtime/globals.hpp" | 34 #include "runtime/globals.hpp" |
| 34 #include "runtime/interfaceSupport.hpp" | 35 #include "runtime/interfaceSupport.hpp" |
| 187 UNSAFE_ENTRY(jobject, Unsafe_GetObject140(JNIEnv *env, jobject unsafe, jobject obj, jint offset)) | 188 UNSAFE_ENTRY(jobject, Unsafe_GetObject140(JNIEnv *env, jobject unsafe, jobject obj, jint offset)) |
| 188 UnsafeWrapper("Unsafe_GetObject"); | 189 UnsafeWrapper("Unsafe_GetObject"); |
| 189 if (obj == NULL) THROW_0(vmSymbols::java_lang_NullPointerException()); | 190 if (obj == NULL) THROW_0(vmSymbols::java_lang_NullPointerException()); |
| 190 GET_OOP_FIELD(obj, offset, v) | 191 GET_OOP_FIELD(obj, offset, v) |
| 191 jobject ret = JNIHandles::make_local(env, v); | 192 jobject ret = JNIHandles::make_local(env, v); |
| 192 #ifndef SERIALGC | 193 #if INCLUDE_ALL_GCS |
| 193 // We could be accessing the referent field in a reference | 194 // We could be accessing the referent field in a reference |
| 194 // object. If G1 is enabled then we need to register a non-null | 195 // object. If G1 is enabled then we need to register a non-null |
| 195 // referent with the SATB barrier. | 196 // referent with the SATB barrier. |
| 196 if (UseG1GC) { | 197 if (UseG1GC) { |
| 197 bool needs_barrier = false; | 198 bool needs_barrier = false; |
| 210 if (needs_barrier) { | 211 if (needs_barrier) { |
| 211 oop referent = JNIHandles::resolve(ret); | 212 oop referent = JNIHandles::resolve(ret); |
| 212 G1SATBCardTableModRefBS::enqueue(referent); | 213 G1SATBCardTableModRefBS::enqueue(referent); |
| 213 } | 214 } |
| 214 } | 215 } |
| 215 #endif // SERIALGC | 216 #endif // INCLUDE_ALL_GCS |
| 216 return ret; | 217 return ret; |
| 217 UNSAFE_END | 218 UNSAFE_END |
| 218 | 219 |
| 219 UNSAFE_ENTRY(void, Unsafe_SetObject140(JNIEnv *env, jobject unsafe, jobject obj, jint offset, jobject x_h)) | 220 UNSAFE_ENTRY(void, Unsafe_SetObject140(JNIEnv *env, jobject unsafe, jobject obj, jint offset, jobject x_h)) |
| 220 UnsafeWrapper("Unsafe_SetObject"); | 221 UnsafeWrapper("Unsafe_SetObject"); |
| 245 // That is, it should be in the range [0, MAX_OBJECT_SIZE]. | 246 // That is, it should be in the range [0, MAX_OBJECT_SIZE]. |
| 246 UNSAFE_ENTRY(jobject, Unsafe_GetObject(JNIEnv *env, jobject unsafe, jobject obj, jlong offset)) | 247 UNSAFE_ENTRY(jobject, Unsafe_GetObject(JNIEnv *env, jobject unsafe, jobject obj, jlong offset)) |
| 247 UnsafeWrapper("Unsafe_GetObject"); | 248 UnsafeWrapper("Unsafe_GetObject"); |
| 248 GET_OOP_FIELD(obj, offset, v) | 249 GET_OOP_FIELD(obj, offset, v) |
| 249 jobject ret = JNIHandles::make_local(env, v); | 250 jobject ret = JNIHandles::make_local(env, v); |
| 250 #ifndef SERIALGC | 251 #if INCLUDE_ALL_GCS |
| 251 // We could be accessing the referent field in a reference | 252 // We could be accessing the referent field in a reference |
| 252 // object. If G1 is enabled then we need to register non-null | 253 // object. If G1 is enabled then we need to register non-null |
| 253 // referent with the SATB barrier. | 254 // referent with the SATB barrier. |
| 254 if (UseG1GC) { | 255 if (UseG1GC) { |
| 255 bool needs_barrier = false; | 256 bool needs_barrier = false; |
| 268 if (needs_barrier) { | 269 if (needs_barrier) { |
| 269 oop referent = JNIHandles::resolve(ret); | 270 oop referent = JNIHandles::resolve(ret); |
| 270 G1SATBCardTableModRefBS::enqueue(referent); | 271 G1SATBCardTableModRefBS::enqueue(referent); |
| 271 } | 272 } |
| 272 } | 273 } |
| 273 #endif // SERIALGC | 274 #endif // INCLUDE_ALL_GCS |
| 274 return ret; | 275 return ret; |
| 275 UNSAFE_END | 276 UNSAFE_END |
| 276 | 277 |
| 277 UNSAFE_ENTRY(void, Unsafe_SetObject(JNIEnv *env, jobject unsafe, jobject obj, jlong offset, jobject x_h)) | 278 UNSAFE_ENTRY(void, Unsafe_SetObject(JNIEnv *env, jobject unsafe, jobject obj, jlong offset, jobject x_h)) |
| 278 UnsafeWrapper("Unsafe_SetObject"); | 279 UnsafeWrapper("Unsafe_SetObject"); |
