RFR: 8370708: RISC-V: Add VerifyStackAtCalls [v2]

[Robbin Ehn]

On Tue, 28 Oct 2025 07:31:42 GMT, Fei Yang <fyang at openjdk.org> wrote:

>> Robbin Ehn has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   li->mv, format, space
>
> src/hotspot/cpu/riscv/riscv.ad line 2443:
> 
>> 2441:       // Check that stack depth is unchanged: find majik cookie on stack
>> 2442:       int framesize = ra_->reg2offset_unchecked(OptoReg::add(ra_->_matcher._old_SP, -3 * VMRegImpl::slots_per_word));
>> 2443:       Label CHECK_PASSED;
> 
> Nit: We rarely use big names for labels. Maybe `Label stack_ok`?

Yea, sure.

Personally I prefer labels to stand out as control transfer is a bit tricky to keep track of in assembly.

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PR Review Comment: https://git.openjdk.org/jdk/pull/28005#discussion_r2468247372