> 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'
SendaoYan has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains five additional commits since the last revision: - Merge branch 'master' of github.com:openjdk/jdk into jbs8366777 - Add the original comments for -ftrivial-auto-var-init=zero - Remove prefix whitespace - Add configure option --enable-aarch64-sve to enable or disable sve explicitly - 8366777: Build fails unknown pseudo-op with old AS on linux-aarch64 ------------- Changes: - all: https://git.openjdk.org/jdk/pull/27073/files - new: https://git.openjdk.org/jdk/pull/27073/files/5b049ec9..1e477b84 Webrevs: - full: https://webrevs.openjdk.org/?repo=jdk&pr=27073&range=04 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=27073&range=03-04 Stats: 3553 lines in 230 files changed: 2299 ins; 273 del; 981 mod Patch: https://git.openjdk.org/jdk/pull/27073.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/27073/head:pull/27073 PR: https://git.openjdk.org/jdk/pull/27073
