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8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition

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Lazily create and maintain the MemberNameTable to be able to update MemberName's

Reviewed-by: coleenp, jrose, dholmes
This commit is contained in:
Serguei Spitsyn 2013-04-20 04:07:08 -07:00 • committed by Serguei Spitsyn
parent 46b3969016
commit 87f3086e13
9 changed files with 231 additions and 58 deletions
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9
hotspot/src/share/vm/classfile/javaClasses.cpp
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@ -2625,6 +2625,15 @@ Metadata* java_lang_invoke_MemberName::vmtarget(oop mname) {
return (Metadata*)mname->address_field(_vmtarget_offset);
}
#if INCLUDE_JVMTI
// Can be executed on VM thread only
void java_lang_invoke_MemberName::adjust_vmtarget(oop mname, Metadata* ref) {
assert((is_instance(mname) && (flags(mname) & (MN_IS_METHOD | MN_IS_CONSTRUCTOR)) > 0), "wrong type");
assert(Thread::current()->is_VM_thread(), "not VM thread");
mname->address_field_put(_vmtarget_offset, (address)ref);
}
#endif // INCLUDE_JVMTI
void java_lang_invoke_MemberName::set_vmtarget(oop mname, Metadata* ref) {
assert(is_instance(mname), "wrong type");
// check the type of the vmtarget