Date: Thu, 18 Apr 2002 04:06:33 +0200 (CEST) From: Matthias Andree <matthias.andree@web.de> To: FreeBSD-gnats-submit@FreeBSD.org Subject: misc/37212: make.conf/bsd.cpu.mk: i486 does not set -march. Message-ID: <20020418020633.E31EA2B@gandalf.emma.line.org>
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>Number: 37212
>Category: misc
>Synopsis: make.conf/bsd.cpu.mk: i486 does not set -march.
>Confidential: no
>Severity: non-critical
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: change-request
>Submitter-Id: current-users
>Arrival-Date: Wed Apr 17 19:10:02 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: Matthias Andree
>Release: FreeBSD 4.5-RELEASE-p3 i386
>Organization:
>Environment:
System: FreeBSD gandalf 4.5-RELEASE-p3 FreeBSD 4.5-RELEASE-p3 #0: Wed Apr 17 19:25:25 CEST 2002 root@emma1.emma.line.org:/usr/src_release/src/sys/compile/GANDALF i386
>Description:
When /etc/make.conf sets CPUTYPE=i486, -m486 (which is a synonym for
-mcpu=i486) will be added to the gcc options. However, CPUTYPE=i586 sets
-march=i586, which can make quite a difference because it drops i386 and
i486 compatibility.
I'd find it more consistent if CPUTYPE=i486 used -march=i486 (dropping
i386 compatibility) instead of -mcpu=i486 (-m486).
>How-To-Repeat:
>Fix:
Here's a patch against /usr/share/mk/bsd.cpu.mk:
--- /usr/share/mk/bsd.cpu.mk.orig Thu Apr 18 03:49:38 2002
+++ /usr/share/mk/bsd.cpu.mk Thu Apr 18 03:50:03 2002
@@ -49,7 +49,7 @@
. elif ${CPUTYPE} == "i586"
_CPUCFLAGS = -march=pentium
. elif ${CPUTYPE} == "i486"
-_CPUCFLAGS = -m486
+_CPUCFLAGS = -march=i486
. endif
. elif ${MACHINE_ARCH} == "alpha"
. if ${CPUTYPE} == "ev6"
>Release-Note:
>Audit-Trail:
>Unformatted:
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