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comparison src/share/vm/prims/unsafe.cpp @ 4043:12d38ffcba2a

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7094138: JSR 292: JRuby junit test fails in CallSite.setTargetNormal: obj->is_oop() failed: sanity check Reviewed-by: iveresov, never
author twisti
date Tue, 25 Oct 2011 00:55:10 -0700
parents 436b4a3231bf
children d2a62e0f25eb 56c4f88474b3
comparison
equal deleted inserted replaced
4042:b20d64f83668 4043:12d38ffcba2a
300 return JNIHandles::make_local(env, v); 300 return JNIHandles::make_local(env, v);
301 UNSAFE_END 301 UNSAFE_END
302 302
303 UNSAFE_ENTRY(void, Unsafe_SetObjectVolatile(JNIEnv *env, jobject unsafe, jobject obj, jlong offset, jobject x_h)) 303 UNSAFE_ENTRY(void, Unsafe_SetObjectVolatile(JNIEnv *env, jobject unsafe, jobject obj, jlong offset, jobject x_h))
304 UnsafeWrapper("Unsafe_SetObjectVolatile"); 304 UnsafeWrapper("Unsafe_SetObjectVolatile");
305 {
306 // Catch VolatileCallSite.target stores (via
307 // CallSite.setTargetVolatile) and check call site dependencies.
308 oop p = JNIHandles::resolve(obj);
309 if ((offset == java_lang_invoke_CallSite::target_offset_in_bytes()) && p->is_a(SystemDictionary::CallSite_klass())) {
310 Handle call_site (THREAD, p);
311 Handle method_handle(THREAD, JNIHandles::resolve(x_h));
312 assert(call_site ->is_a(SystemDictionary::CallSite_klass()), "must be");
313 assert(method_handle->is_a(SystemDictionary::MethodHandle_klass()), "must be");
314 {
315 // Walk all nmethods depending on this call site.
316 MutexLocker mu(Compile_lock, thread);
317 Universe::flush_dependents_on(call_site(), method_handle());
318 }
319 }
320 }
305 oop x = JNIHandles::resolve(x_h); 321 oop x = JNIHandles::resolve(x_h);
306 oop p = JNIHandles::resolve(obj); 322 oop p = JNIHandles::resolve(obj);
307 // Catch VolatileCallSite.target stores (via
308 // CallSite.setTargetVolatile) and check call site dependencies.
309 if ((offset == java_lang_invoke_CallSite::target_offset_in_bytes()) && p->is_a(SystemDictionary::CallSite_klass())) {
310 oop call_site = p;
311 oop method_handle = x;
312 assert(call_site ->is_a(SystemDictionary::CallSite_klass()), "must be");
313 assert(method_handle->is_a(SystemDictionary::MethodHandle_klass()), "must be");
314 {
315 // Walk all nmethods depending on this call site.
316 MutexLocker mu(Compile_lock, thread);
317 Universe::flush_dependents_on(call_site, method_handle);
318 }
319 }
320 void* addr = index_oop_from_field_offset_long(p, offset); 323 void* addr = index_oop_from_field_offset_long(p, offset);
321 OrderAccess::release(); 324 OrderAccess::release();
322 if (UseCompressedOops) { 325 if (UseCompressedOops) {
323 oop_store((narrowOop*)addr, x); 326 oop_store((narrowOop*)addr, x);
324 } else { 327 } else {