On Mon, 23 Nov 2020 22:35:05 GMT, Aleksey Shipilev <sh...@openjdk.org> wrote:
>> If you try to build `linux-mipsel-zero-fastdebug`, this happens: >> >> >> >> >> >> >> >> I think it relates to >> [JDK-8253970](https://bugs.openjdk.java.net/browse/JDK-8253970) that >> introduced `atomic_compare_exchange` on those paths, but maybe the issue >> exists for longer. >> >> Various other reports for build failures like this suggest the binary should >> link with `libatomic`. GCC's `libatomic` is the library that provides >> runtime support for atomics not supported in hardware, which seems to >> include 8-byte CAS for MIPS, but not any other OpenJDK platform. >> >> The alternative would be to massage the otherwise generic Zero code to >> unimplement the 8-byte CAS. >> >> Attention @DamonFool, who must be running into this problem for their MIPS >> builds? >> >> Testing: >> - [x] Linux mipsel Zero fastdebug build (together with JDK-8256829 fix) > > Aleksey Shipilev has updated the pull request with a new target base due to a > merge or a rebase. The pull request now contains four commits: > > - Merge branch 'master' into JDK-8256831-mips-8-byte-cas > - Move the library addition to LIB_SETUP_LIBRARIES > - Merge branch 'master' into JDK-8256831-mips-8-byte-cas > - 8256831: MIPS Zero builds fail with undefined __atomic_compare_exchange_8 Marked as reviewed by ihse (Reviewer). ------------- PR: https://git.openjdk.java.net/jdk/pull/1375
