On Fri, 24 Jan 2025 09:09:15 GMT, Matthias Baesken <mbaes...@openjdk.org> wrote:
> When building on Linux ppc64le with the clang toolchain, the new JVM fails > already in the build process with an error/crash : > > > # SIGILL (0x4) at pc=0x000079198fae03ac, pid=2922849, tid=2923410 > # > # Problematic frame: > # v ~BufferBlob::detect_cpu_features 0x000079198fae03ac > > > It was noticed the clang build on Linux ppc64le missed some important compile > flags, especially -DABI_ELFv2 (compared to gcc build). Hi Erik and Martin , thanks for the reviews ! I also noticed we set `-fstack-protector` only for Linux/gcc but not for clang. Probably we should change this (but in a separate PR). See https://github.com/openjdk/jdk/blob/909cef5198e91f56e4c76c2cf86048583791f3ab/make/autoconf/flags-cflags.m4#L526 (seems we set it already for AIX/clang) The compile flag ` -D_REENTRANT` is also only set for gcc not clang in the JVM compilation units. Not sure if we need it. See https://github.com/openjdk/jdk/blob/909cef5198e91f56e4c76c2cf86048583791f3ab/make/autoconf/flags-cflags.m4#L497 . ------------- PR Comment: https://git.openjdk.org/jdk/pull/23292#issuecomment-2612785631
