On Wed, 3 Sep 2025 14:35:44 GMT, SendaoYan <[email protected]> wrote: > Hi all, > > Build jdk on linux-aarch64 with older assembler version(as 2.30) will report > compilation failre, shows as > [JDK-8366777](https://bugs.openjdk.org/browse/JDK-8366777). > > This PR add the expression `svfloat64_t a() {}` to makefile which will > trigger the compilation during configure stage. After this PR, at configure > stage will check the gcc and assember support `-march=armv8-a+sve` or not > more comprehensive. > > Testing: > - [x] On linux-aarch64 gcc12.3.1 as2.37, configure set SVE_CFLAGS as > '-march=armv8-a+sve' > - [x] On linux-aarch64 gcc10.3.0 as2.30, configure set SVE_CFLAGS as empty > > > The compilation fails demo as below: > > > # cat sve.c > #include <arm_sve.h> > svfloat64_t a() {} > # gcc -march=armv8-a+sve sve.c > /tmp/ccVOzMzb.s: Assembler messages: > /tmp/ccVOzMzb.s:6: Error: unknown pseudo-op: `.variant_pcs'
This pull request has now been integrated. Changeset: 4719ed67 Author: SendaoYan <[email protected]> URL: https://git.openjdk.org/jdk/commit/4719ed671a8a8e10b77c4748a0e1ee63c19dfefb Stats: 99 lines in 3 files changed: 57 ins; 42 del; 0 mod 8366777: Build fails unknown pseudo-op with old AS on linux-aarch64 Reviewed-by: erikj, ihse ------------- PR: https://git.openjdk.org/jdk/pull/27073
