RFR: JDK-8288719: [arm32] SafeFetch32 thumb interleaving causes random crashes

[Thomas Stuefe]

On Mon, 20 Jun 2022 18:50:26 GMT, Sergey Nazarkin <snazarki at openjdk.org> wrote:

> Now I remember jdk8 aarch32 port marks assembly functions specially to handle thumb interworking. AFAIK the bug can be reproduced with overridden C(XX)FLAGS=-mthumb even with crossbuilds. LGTM

Thank you, Sergey!

I tried to reproduce this with -mthumb with a crossbuild, but was not able to pass --with-extra-cflags to a devkit crossbuild. I opened https://bugs.openjdk.org/browse/JDK-8288797 to track that.

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PR: https://git.openjdk.org/jdk/pull/9213