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Bug 1099547

Summary:	Add OpenMP 4.0 support to libgomp
Product:	Red Hat Enterprise Linux 7	Reporter:	Jakub Jelinek <jakub>
Component:	gcc	Assignee:	Jakub Jelinek <jakub>
Status:	CLOSED ERRATA	QA Contact:	Miroslav Franc <mfranc>
Severity:	medium	Docs Contact:
Priority:	high
Version:	7.0	CC:	bgollahe, jreznik, jsvarova, law, mcermak, mfranc, mnewsome, mpolacek, nobody+bgollahe, ohudlick
Target Milestone:	rc	Keywords:	ZStream
Target Release:	7.1
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	gcc-4.8.3-1.el7	Doc Type:	Bug Fix
Doc Text:	Prior to this update, applications built with DTS 3.0 and using OpenMP could not link on Red Hat Enterprise Linux 7. With this update, OpenMP 4.0 support has been included in DTS 3.0 and the applications now link correctly.	Story Points:	---
Clone Of:
Clones:	1099549 1121077 (view as bug list)		Environment:
Last Closed:	2015-03-05 07:05:16 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:
Bug Blocks:	1099549, 1121077

Description Jakub Jelinek 2014-05-20 15:04:23 UTC

GCC 4.9 to be included in DTS 3.0 has OpenMP 4.0 support.
For DTS we are using libstdc++_nonshared.a (similarly for libgfortran) + system shared libraries, but for libgomp that is not possible, on the other side the backport isn't large and has minimal risks on OpenMP 3.1 and earlier programs compiled by GCC 4.8 and earlier.

A test build of the backport has been performed (built for F20, scratch build for RHEL7).

Comment 1 Jakub Jelinek 2014-05-20 15:09:06 UTC

Backport at http://gcc.gnu.org/r210462 .  For testing, make check in libgomp (performed during gcc build) and make check in DTS 3.0 gcc libgomp (with the GCC 4.9.* built libgomp.so.* replaced with the updated system one) is needed.

Comment 2 Jakub Jelinek 2014-06-26 13:18:47 UTC

Should be in gcc-4.8.3-1.el7.
We'll need 7.0.z update too (though, in that case 4.8.2-16.1.el7 with just libgomp changes backported).

Comment 10 errata-xmlrpc 2015-03-05 07:05:16 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2015-0320.html

Comment 11 Red Hat Bugzilla 2023-09-14 02:08:08 UTC

The needinfo request[s] on this closed bug have been removed as they have been unresolved for 1000 days