commit: f92ae7ff710b5e5d97d5de74300417062188b051 Author: Andreas K. Hüttel <dilfridge <AT> gentoo <DOT> org> AuthorDate: Mon Apr 14 16:54:53 2025 +0000 Commit: Andreas K. Hüttel <dilfridge <AT> gentoo <DOT> org> CommitDate: Mon Apr 14 16:54:53 2025 +0000 URL: https://gitweb.gentoo.org/data/gentoo-news.git/commit/?id=f92ae7ff
Add newsitem about s390x baseline z10 See-also: https://github.com/openssl/openssl/issues/27323 Signed-off-by: Andreas K. Hüttel <dilfridge <AT> gentoo.org> .../2025-04-14-s390x-baseline-z10.en.txt | 33 ++++++++++++++++++++++ 1 file changed, 33 insertions(+) diff --git a/2025-04-14-s390x-baseline-z10/2025-04-14-s390x-baseline-z10.en.txt b/2025-04-14-s390x-baseline-z10/2025-04-14-s390x-baseline-z10.en.txt new file mode 100644 index 0000000..d810116 --- /dev/null +++ b/2025-04-14-s390x-baseline-z10/2025-04-14-s390x-baseline-z10.en.txt @@ -0,0 +1,33 @@ +Title: Gentoo raises s390x baseline to z10 +Author: Andreas K. Hüttel <[email protected]> +Posted: 2025-04-14 +Revision: 1 +News-Item-Format: 2.0 +Display-If-Profile: default/linux/s390/17.0/s390x +Display-If-Profile: default/linux/s390/17.0/s390x/systemd/merged-usr +Display-If-Profile: default/linux/s390/23.0/split-usr/s390x +Display-If-Profile: default/linux/s390/23.0/s390x +Display-If-Profile: default/linux/s390/23.0/s390x/systemd + +Since more and more software for s390x assumes the presence of a more recent +processor, we will raise the ISA baseline in 64bit s390x profiles for the +catalyst stage builds and the published binary packages from z900 to z10 (i.e., +-march=z10). + +* If you are running an installation and emerge locally from source, this does + not affect you. + +* If you are running an installation and use our binary packages, please make + sure you have compatibility for z10 or switch to building from source. + +* The 64bit s390x stages will only work with machines compatible with z10. + +* This does not affect the 31bit s390 stages or packages. + +The z10 Enterprise Class (2097 series) was introduced in February 2008 [1], +which essentially means everyone except hardware archaeologists should be fine. + +Note that z10 is still a very conservative setting; on modern machines a newer +ISA is strongly recommended. + +[1] https://en.wikipedia.org/wiki/IBM_Z
