RFR: 8310656: RISC-V: __builtin___clear_cache can fail silently.

[Robbin Ehn]

On Wed, 28 Jun 2023 08:14:02 GMT, Robbin Ehn <rehn at openjdk.org> wrote:

>> src/hotspot/os_cpu/linux_riscv/riscv_flush_icache.cpp line 44:
>> 
>>> 42: 
>>> 43: #define assert_with_errno(cond, msg)    check_with_errno(assert, cond, msg)
>>> 44: #define guarantee_with_errno(cond, msg) check_with_errno(guarantee, cond, msg)
>> 
>> useful; potentially in debug.hpp?
>
> I'll create an jira ticker, I have spread this around to other places which also needs to be cleanup.

https://bugs.openjdk.org/browse/JDK-8311145

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PR Review Comment: https://git.openjdk.org/jdk/pull/14670#discussion_r1247509403