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comparison src/share/vm/runtime/javaCalls.cpp @ 702:b9fba36710f2

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6699669: Hotspot server leaves synchronized block with monitor in bad state Summary: Remove usage of _highest_lock field in Thread so that is_lock_owned won't depend on the correct update of that field. Reviewed-by: never, dice, acorn
author xlu
date Mon, 06 Apr 2009 15:47:39 -0700
parents 0fbdb4381b99
children 09e7826ecf01 2338d41fbd81
comparison
equal deleted inserted replaced
697:922aedc96ef5 702:b9fba36710f2
35 guarantee(thread->is_Java_thread(), "crucial check - the VM thread cannot and must not escape to Java code"); 35 guarantee(thread->is_Java_thread(), "crucial check - the VM thread cannot and must not escape to Java code");
36 assert(!thread->owns_locks(), "must release all locks when leaving VM"); 36 assert(!thread->owns_locks(), "must release all locks when leaving VM");
37 guarantee(!thread->is_Compiler_thread(), "cannot make java calls from the compiler"); 37 guarantee(!thread->is_Compiler_thread(), "cannot make java calls from the compiler");
38 _result = result; 38 _result = result;
39 39
40 // Make sure that that the value of the higest_lock is at least the same as the current stackpointer,
41 // since, the Java code is highly likely to use locks.
42 // Use '(address)this' to guarantee that highest_lock address is conservative and inside our thread
43 thread->update_highest_lock((address)this);
44
45 // Allocate handle block for Java code. This must be done before we change thread_state to _thread_in_Java_or_stub, 40 // Allocate handle block for Java code. This must be done before we change thread_state to _thread_in_Java_or_stub,
46 // since it can potentially block. 41 // since it can potentially block.
47 JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread); 42 JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread);
48 43
49 // After this, we are official in JavaCode. This needs to be done before we change any of the thread local 44 // After this, we are official in JavaCode. This needs to be done before we change any of the thread local