[crac] RFR: Fix up CPUFeatures on top of Merge jdk:jdk-25+26 [v7]

[Timofei Pushkin]

On Fri, 25 Jul 2025 18:14:40 GMT, Jan Kratochvil <jkratochvil at openjdk.org> wrote:

>> This pull request contains: https://github.com/openjdk/crac/pull/248
>> I think the CRaC project does not provide the pr/NUMBER branches for dependent patches.
>> 
>> This pull request enables the CPUFeatures again.
>
> Jan Kratochvil has updated the pull request incrementally with one additional commit since the last revision:
> 
>   fix MS-Windows compilation

src/hotspot/cpu/x86/vm_version_x86.cpp line 927:

> 925:     s = stpcpy(s, ",0xNUM");
> 926:   }
> 927:   vm_exit_during_initialization(err_msg("VM option 'CPUFeatures=%s' must be of the form: %s", str, buf + 1));

`str` might have been moved by now so only a part of the actual user input would be printed

src/hotspot/cpu/x86/vm_version_x86.cpp line 2553:

> 2551:   print_numbers_and_names(buf, sizeof(buf));
> 2552:   tty->print_cr("; missing features of this CPU are %s\n"
> 2553:                 "If you are sure it will not crash you can override this check by -XX:+UnlockExperimentalVMOptions -XX:+IgnoreCPUFeatures .",

Suggestion:

                "If you are sure it will not crash you can override this check by -XX:+UnlockExperimentalVMOptions -XX:+IgnoreCPUFeatures.",

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PR Review Comment: https://git.openjdk.org/crac/pull/250#discussion_r2233124692
PR Review Comment: https://git.openjdk.org/crac/pull/250#discussion_r2233128650