Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/prims/jvm.cpp
src/share/vm/prims/jvm.cpp
- changeset 5289
- ac91879aa56f
- parent 5237
- f2110083203d
- parent 5287
- c52abc8a0b08
- child 5295
- 9f3e3245b50f
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replaced
| 5254:f9709e27a876 | 5289:ac91879aa56f |
|---|---|
| 3239 } | 3239 } |
| 3240 return NULL; | 3240 return NULL; |
| 3241 JVM_END | 3241 JVM_END |
| 3242 | 3242 |
| 3243 | 3243 |
| 3244 // Utility object for collecting method holders walking down the stack | |
| 3245 class KlassLink: public ResourceObj { | |
| 3246 public: | |
| 3247 KlassHandle klass; | |
| 3248 KlassLink* next; | |
| 3249 | |
| 3250 KlassLink(KlassHandle k) { klass = k; next = NULL; } | |
| 3251 }; | |
| 3252 | |
| 3253 | |
| 3254 JVM_ENTRY(jobjectArray, JVM_GetClassContext(JNIEnv *env)) | 3244 JVM_ENTRY(jobjectArray, JVM_GetClassContext(JNIEnv *env)) |
| 3255 JVMWrapper("JVM_GetClassContext"); | 3245 JVMWrapper("JVM_GetClassContext"); |
| 3256 ResourceMark rm(THREAD); | 3246 ResourceMark rm(THREAD); |
| 3257 JvmtiVMObjectAllocEventCollector oam; | 3247 JvmtiVMObjectAllocEventCollector oam; |
| 3258 // Collect linked list of (handles to) method holders | |
| 3259 KlassLink* first = NULL; | |
| 3260 KlassLink* last = NULL; | |
| 3261 int depth = 0; | |
| 3262 vframeStream vfst(thread); | 3248 vframeStream vfst(thread); |
| 3263 | 3249 |
| 3264 if (SystemDictionary::reflect_CallerSensitive_klass() != NULL) { | 3250 if (SystemDictionary::reflect_CallerSensitive_klass() != NULL) { |
| 3265 // This must only be called from SecurityManager.getClassContext | 3251 // This must only be called from SecurityManager.getClassContext |
| 3266 Method* m = vfst.method(); | 3252 Method* m = vfst.method(); |
| 3270 THROW_MSG_NULL(vmSymbols::java_lang_InternalError(), "JVM_GetClassContext must only be called from SecurityManager.getClassContext"); | 3256 THROW_MSG_NULL(vmSymbols::java_lang_InternalError(), "JVM_GetClassContext must only be called from SecurityManager.getClassContext"); |
| 3271 } | 3257 } |
| 3272 } | 3258 } |
| 3273 | 3259 |
| 3274 // Collect method holders | 3260 // Collect method holders |
| 3261 GrowableArray<KlassHandle>* klass_array = new GrowableArray<KlassHandle>(); | |
| 3275 for (; !vfst.at_end(); vfst.security_next()) { | 3262 for (; !vfst.at_end(); vfst.security_next()) { |
| 3276 Method* m = vfst.method(); | 3263 Method* m = vfst.method(); |
| 3277 // Native frames are not returned | 3264 // Native frames are not returned |
| 3278 if (!m->is_ignored_by_security_stack_walk() && !m->is_native()) { | 3265 if (!m->is_ignored_by_security_stack_walk() && !m->is_native()) { |
| 3279 Klass* holder = m->method_holder(); | 3266 Klass* holder = m->method_holder(); |
| 3280 assert(holder->is_klass(), "just checking"); | 3267 assert(holder->is_klass(), "just checking"); |
| 3281 depth++; | 3268 klass_array->append(holder); |
| 3282 KlassLink* l = new KlassLink(KlassHandle(thread, holder)); | |
| 3283 if (first == NULL) { | |
| 3284 first = last = l; | |
| 3285 } else { | |
| 3286 last->next = l; | |
| 3287 last = l; | |
| 3288 } | |
| 3289 } | 3269 } |
| 3290 } | 3270 } |
| 3291 | 3271 |
| 3292 // Create result array of type [Ljava/lang/Class; | 3272 // Create result array of type [Ljava/lang/Class; |
| 3293 objArrayOop result = oopFactory::new_objArray(SystemDictionary::Class_klass(), depth, CHECK_NULL); | 3273 objArrayOop result = oopFactory::new_objArray(SystemDictionary::Class_klass(), klass_array->length(), CHECK_NULL); |
| 3294 // Fill in mirrors corresponding to method holders | 3274 // Fill in mirrors corresponding to method holders |
| 3295 int index = 0; | 3275 for (int i = 0; i < klass_array->length(); i++) { |
| 3296 while (first != NULL) { | 3276 result->obj_at_put(i, klass_array->at(i)->java_mirror()); |
| 3297 result->obj_at_put(index++, first->klass()->java_mirror()); | 3277 } |
| 3298 first = first->next; | |
| 3299 } | |
| 3300 assert(index == depth, "just checking"); | |
| 3301 | 3278 |
| 3302 return (jobjectArray) JNIHandles::make_local(env, result); | 3279 return (jobjectArray) JNIHandles::make_local(env, result); |
| 3303 JVM_END | 3280 JVM_END |
| 3304 | 3281 |
| 3305 | 3282 |
