Bug 1947895

Summary:	glibc: Inherit additional compiler flags
Product:	Red Hat Enterprise Linux 9	Reporter:	Florian Weimer <fweimer>
Component:	glibc	Assignee:	Florian Weimer <fweimer>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Sergey Kolosov <skolosov>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	CentOS Stream	CC:	aoliva, arjun.is, ashankar, codonell, dj, extras-qa, fweimer, law, mcermak, mfabian, mnewsome, pfrankli, rth, sipoyare
Target Milestone:	beta	Keywords:	Triaged
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	glibc-2.33-8.el9	Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:	1947894	Environment:
Last Closed:	2021-12-07 21:42:00 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1947894
Bug Blocks:

Description Florian Weimer 2021-04-09 13:39:08 UTC

+++ This bug was initially created as a clone of Bug #1947894 +++

We need to inherit -mcpu=power9, -mtune=power9 at least. This does not change baseline, it just enables control via redhat-rpm-config.

Comment 1 Florian Weimer 2021-04-09 13:45:26 UTC

Minimal patch:

diff --git a/glibc.spec b/glibc.spec
index 40b605f..5ee1887 100644
--- a/glibc.spec
+++ b/glibc.spec
@@ -1095,10 +1095,14 @@ rpm_inherit_flags \
        "-march=z15" \
        "-march=zEC12" \
        "-mbranch-protection=standard" \
+       "-mcpu=power8" \
+       "-mcpu=power9" \
        "-mfpmath=sse" \
        "-msse2" \
        "-mstackrealign" \
        "-mtune=generic" \
+       "-mtune=power8" \
+       "-mtune=power9" \
        "-mtune=z13" \
        "-mtune=z14" \
        "-mtune=z15" \

Comment 2 Florian Weimer 2021-04-09 15:21:45 UTC

Merge request: https://gitlab.com/redhat/centos-stream/rpms/glibc/-/merge_requests/5

Comment 5 Sergey Kolosov 2021-05-03 07:59:21 UTC

No regressions have been found.