On Sun, 22 Nov 2020 14:40:12 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) This pull request has now been integrated. Changeset: 1b3aa3af Author: Aleksey Shipilev <sh...@openjdk.org> URL: https://git.openjdk.java.net/jdk/commit/1b3aa3af Stats: 8 lines in 1 file changed: 8 ins; 0 del; 0 mod 8256831: MIPS Zero builds fail with undefined __atomic_compare_exchange_8 Reviewed-by: ihse ------------- PR: https://git.openjdk.java.net/jdk/pull/1375
