RFR: 8343789: Move mutable nmethod data out of CodeCache [v4]

[Boris Ulasevich]

On Fri, 22 Nov 2024 02:51:03 GMT, Dean Long <dlong at openjdk.org> wrote:

>> src/hotspot/share/code/codeBlob.cpp line 103:
>> 
>>> 101:   // The mutable_data_size is either calculated by the nmethod constructor to account
>>> 102:   // for reloc_info and additional data, or it is set here to accommodate only the relocation data.
>>> 103:   _mutable_data_size = (mutable_data_size == 0) ? cb->total_relocation_size() : mutable_data_size;
>> 
>> This seems strange to treat relocations as special.  Wouldn't it be better to have the caller always pass in the correct value?
>
> Or compute using something like required_mutable_data_space()?

Alright. Thank you. I moved mutable_data_size calculation out of CodeBlob.

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PR Review Comment: https://git.openjdk.org/jdk/pull/21276#discussion_r1879013357