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Date: Sun, 2 Sep 2001 18:54:31 -0500 (CDT)
From: Larry Rosenman <ler@lerctr.org>
Reply-To: Larry Rosenman <ler@lerctr.org>
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Subject: i386/30276: CPUTYPE=486 built on a CPUTYPE=p3 WORLD breaks on INSTALLWORLD
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>Number:         30276
>Category:       i386
>Synopsis:       CPUTYPE=486 built on a CPUTYPE=p3 WORLD breaks on INSTALLWORLD
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Sep 02 17:00:02 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     Larry Rosenman
>Release:        FreeBSD 4.4-RC i386
>Organization:
LERCTR Consulting, Garland, TX
>Environment:
System: FreeBSD lerbsd.lerctr.org 4.4-RC FreeBSD 4.4-RC #17: Sat Aug 18 17:22:20 CDT 2001 ler@lerbsd.lerctr.org:/usr/obj/usr/src/sys/LERBSD i386


>Description:
The cross-tools that are built use the *HOST* libc.a. Therefore certain tools
that are executed on the *TARGET* machine will possibly be linked with 
inappropriate libraries. 

The strip binary used during installworld is one of these, there may be others. 

I've had a discussion with Marcel Moolenaar and John Baldwin on the
freebsd-stable list both recently and around the 4.3-RELEASE cycle. 

This PR is to avoid the issue being lost. 

>How-To-Repeat:
	Build/Install world with /etc/make.conf having CPUTYPE=p3. 
        Update /etc/make.conf to change CPUTYPE=i486
        make buildworld
        NFS mount /usr/obj and /usr/src onto a 486
        make installworld on the 486
        watch strip die with SIGILL (signal #4) due to a P3 (cmova) instruction
        in the strip binary. 
>Fix:

Update build system to NOT include host libc.a in any tools that will be 
executed on the target system.  
>Release-Note:
>Audit-Trail:
>Unformatted:

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