git: openjdk/jdk: 8310656: RISC-V: __builtin___clear_cache can fail silently.

[Robbin Ehn]

Changeset: faf1b822
Author:    Robbin Ehn <rehn at openjdk.org>
Date:      2023-07-02 16:15:28 +0000
URL:       https://git.openjdk.org/jdk/commit/faf1b822d03b726413d77a2b247dfbbf4db7d57e

8310656: RISC-V: __builtin___clear_cache can fail silently.

Reviewed-by: luhenry, stuefe, fyang

! src/hotspot/cpu/riscv/icache_riscv.cpp
+ src/hotspot/os_cpu/linux_riscv/riscv_flush_icache.cpp
+ src/hotspot/os_cpu/linux_riscv/riscv_flush_icache.hpp