Date: Fri, 24 Sep 2010 20:13:19 -0500 From: Mark Tinguely <marktinguely@gmail.com> To: current@freebsd.org Subject: Re: Clang cross builds world Message-ID: <4C9D4CAF.3070508@gmail.com> In-Reply-To: <4C9B6804.3070102@FreeBSD.org> References: <4C99A53E.7060707@FreeBSD.org> <AANLkTi=_ZpYZ7XwHJOYuRMOFCGebRwD=YEYORKnMmC0s@mail.gmail.com> <4C9A32B8.60204@kkip.pl> <4C9A6A38.4080307@freebsd.org> <4C9A7203.8010701@kkip.pl> <20100923065134.GA31455@freebsd.org> <4C9B3207.2070302@kkip.pl> <4C9B383A.6080008@FreeBSD.org> <4C9B38E2.7010403@kkip.pl> <4C9B6804.3070102@FreeBSD.org>
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I was inspired by the clang build world topic to try a cross build world
of ARM from a i386 computer.
I use the build command:
make TARGET_ARCH=arm TARGET_CPUTYPE=xscale buildworld
(I tried an "TARGET_CPUTYPE=cortex-a8" once also, I got the same errors
below).
/etc/src.conf is taken from the FreeBSD clang web page,.
/etc/make.conf has perl version strings.
The cross tools build stage apparently makes an i386 compiler:
/usr/obj/arm.arm/usr/src/tmp/usr/bin/clang -###
FreeBSD clang version 2.8 (branches/release_28 114020) 20100917
Target: i386-undermydesk-freebsd9.0
Thread model: posix
When the library build stage begins, the assembler complains about the
unknown "--32" option from clang. I know the "--32" options is a i386
target add-on option. Removing "--32" from the command line with a
script shim, and sure enough clang is generating i386 assembly code.
I know the clang and ARM is not tested nor supported. I am just looking
for some clang cross architecture compiling wisdom.
--Mark Tinguely
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