git: openjdk/jdk17u-dev: 8310656: RISC-V: __builtin___clear_cache can fail silently.

[Vladimir Kempik]

Changeset: 2da7aeb2
Author:    Ludovic Henry <luhenry at openjdk.org>
Committer: Vladimir Kempik <vkempik at openjdk.org>
Date:      2023-11-22 08:17:53 +0000
URL:       https://git.openjdk.org/jdk17u-dev/commit/2da7aeb22d9597fe2db33c04b9f3f706539a3d45

8310656: RISC-V: __builtin___clear_cache can fail silently.

Reviewed-by: vkempik, rehn
Backport-of: 5f1d762750a0d4c20da5b23d54f922dbb5cbbe34

! 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