Date: Mon, 19 Nov 2007 07:11:15 +0200 (EET) From: Heikki Suonsivu <hsu@bbnetworks.net> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/118121: RELENG_7 kernel compile fails with -Os Message-ID: <200711190511.lAJ5BFdh020851@joutseno.wlansystems.com> Resent-Message-ID: <200711191150.lAJBo2wL045977@freefall.freebsd.org>
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>Number: 118121 >Category: kern >Synopsis: RELENG_7 kernel compile fails with -Os >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Nov 19 11:50:02 UTC 2007 >Closed-Date: >Last-Modified: >Originator: Heikki Suonsivu >Release: FreeBSD 7.0-BETA3 i386 >Organization: bbnetworks.net >Environment: System: FreeBSD joutseno.wlansystems.com 7.0-BETA3 FreeBSD 7.0-BETA3 #3: Sun Nov 18 02:20:02 EET 2007 hsu@joutseno.wlansystems.com:/usr/obj/usr/src/sys/GENERIC i386 Anything with RELENG_7, if compiling GENERIC with -Os >Description: When compiling kernel with -Os, gcc apparently finds some new possible warnings (possible uninitialized variables, etc). This exits kernel compile. -O2 does not trigger these. scsi_sa and scsi_ses were among the offending files, but there may be more. >How-To-Repeat: build kernel with COPTFLAGS set to -Os -g -pipe >Fix: The offending code may need further checks. RELENG_6 did not have these warnings, so they apparently are related to new code in 7.x. Workaround is to use -O2 or -O >Release-Note: >Audit-Trail: >Unformatted:
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