On Thu, 13 Feb 2025 17:14:59 GMT, Vladimir Kozlov <[email protected]> wrote:
>> Remove virtual methods from CodeBlob and nmethod to simplify
>> saving/restoring in Leyden AOT cache. It avoids the need to patch hidden
>> VPTR pointer to class's virtual table.
>>
>> Added C++ static asserts to make sure no virtual methods are added in a
>> future.
>>
>> Fixed/cleaned SA code which process CodeBlob and its subclasses. Use
>> `CodeBlob::_kind` field value to determine the type of blob.
>>
>> Tested tier1-5, hs-tier6-rt (for JFR testing), stress, xcomp
>
> Vladimir Kozlov has updated the pull request incrementally with one
> additional commit since the last revision:
>
> rename SA argument
src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/c1/Runtime1.java line 65:
> 63: public CodeBlob blobFor(int id) {
> 64: Address blobAddr = blobsField.getStaticFieldAddress().getAddressAt(id
> * VM.getVM().getAddressSize());
> 65: return VM.getVM().getCodeCache().createCodeBlobWrapper(blobAddr);
We don't need to change all the callers if we keep a 1-arg version of
createCodeBlobWrapper():
public CodeBlob createCodeBlobWrapper(Address codeBlobAddr) {
return createCodeBlobWrapper(codeBlobAddr, codeBlobAddr);
}
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PR Review Comment: https://git.openjdk.org/jdk/pull/23533#discussion_r1955316582
