From mboxrd@z Thu Jan  1 00:00:00 1970
X-Msuck: nntp://news.gmane.org/gmane.linux.lib.musl.general/467
Path: news.gmane.org!not-for-mail
From: Rich Felker <dalias@aerifal.cx>
Newsgroups: gmane.linux.lib.musl.general
Subject: Testing new gcc wrapper script
Date: Wed, 21 Sep 2011 01:14:28 -0400
Message-ID: <20110921051428.GC132@brightrain.aerifal.cx>
Reply-To: musl@lists.openwall.com
NNTP-Posting-Host: lo.gmane.org
Mime-Version: 1.0
Content-Type: multipart/mixed; boundary="XsQoSWH+UP9D9v3l"
X-Trace: dough.gmane.org 1316582402 19614 80.91.229.12 (21 Sep 2011 05:20:02 GMT)
X-Complaints-To: usenet@dough.gmane.org
NNTP-Posting-Date: Wed, 21 Sep 2011 05:20:02 +0000 (UTC)
To: musl@lists.openwall.com
Original-X-From: musl-return-468-gllmg-musl=m.gmane.org@lists.openwall.com Wed Sep 21 07:19:58 2011
Return-path: <musl-return-468-gllmg-musl=m.gmane.org@lists.openwall.com>
Envelope-to: gllmg-musl@lo.gmane.org
Original-Received: from mother.openwall.net ([195.42.179.200])
	by lo.gmane.org with smtp (Exim 4.69)
	(envelope-from <musl-return-468-gllmg-musl=m.gmane.org@lists.openwall.com>)
	id 1R6FDy-000483-BB
	for gllmg-musl@lo.gmane.org; Wed, 21 Sep 2011 07:19:58 +0200
Original-Received: (qmail 30167 invoked by uid 550); 21 Sep 2011 05:19:57 -0000
Mailing-List: contact musl-help@lists.openwall.com; run by ezmlm
Precedence: bulk
List-Post: <mailto:musl@lists.openwall.com>
List-Help: <mailto:musl-help@lists.openwall.com>
List-Unsubscribe: <mailto:musl-unsubscribe@lists.openwall.com>
List-Subscribe: <mailto:musl-subscribe@lists.openwall.com>
Original-Received: (qmail 30154 invoked from network); 21 Sep 2011 05:19:56 -0000
Content-Disposition: inline
User-Agent: Mutt/1.5.21 (2010-09-15)
Xref: news.gmane.org gmane.linux.lib.musl.general:467
Archived-At: <http://permalink.gmane.org/gmane.linux.lib.musl.general/467>


--XsQoSWH+UP9D9v3l
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

The existing gcc wrapper script shipped with musl hasn't been very
robust, and it doesn't work with pre-4.4 gcc. I'm testing a new
version (attached to this email) and I'd like some feedback on how
well it works. Edit the top of the file to choose your installation
location, compiler to run, etc. then invoke it just like before.

Rich

--XsQoSWH+UP9D9v3l
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=my-musl-gcc

#!/bin/sh

gcc=gcc
libc_name=musl
libc_prefix="/usr/local/musl"
ldso_pathname="/lib/ld-musl-i386.so.1"
libc_lib=$libc_prefix/lib
libc_inc=$libc_prefix/include
libc_crt="$libc_lib/crt1.o"
libc_start="$libc_lib/crti.o"
libc_end="$libc_lib/crtn.o"

gcc_inc=$libc_inc
libgcc="$("$gcc" "$@" -print-file-name=libgcc.a)"
libgcc=${libgcc%/libgcc.a}

gccver=${libgcc##*/}
gcctarget=${libgcc%/*}
gcctarget=${gcctarget##*/}

collect2="$("$gcc" -print-prog-name=collect2)"
wrap_dir=$HOME/.tmp/gcc_wrapper/$libc_name-$gcctarget-$gccver

if false && [ -x "$wrap_dir/collect2" ] ; then true
else
mkdir -p "$wrap_dir" || exit 1
echo '#!/bin/sh
first=1
for i ; do
[ "$first" ] && { first= ; set -- ; }
case "$i" in
-L/dev/null) nolibs=1 ;;
-L*) [ "$nolibs" ] || set -- "$@" "$i" ;;
*) set -- "$@" "$i" ;;
esac
done
exec "'"$collect2"'" "$@"' > "$wrap_dir/collect2.$$"
chmod 755 "$wrap_dir/collect2.$$"
mv "$wrap_dir/collect2.$$" "$wrap_dir/collect2"
fi

for i ; do
case "$skip$i" in
-I|-L) skip=- ; continue ;;
-[cSE]|-M*) nolink=1 ;;
-*) ;;
*) havefile=1 ;;
esac
skip=
done

if [ "$nolink" ] ; then
exec "$gcc" -std=gnu99 -nostdinc -isystem "$libc_inc" -isystem "$gcc_inc" "$@"
exit 1
fi

if [ "$havefile" ] ; then
exec "$gcc" -B"$wrap_dir" \
  -std=gnu99 -nostdinc -nostdlib \
  -isystem "$libc_inc" -isystem "$gcc_inc" \
  "$libc_start" "$libc_crt" "$@" "$libc_end" \
  -L"$libc_lib" -L"$libgcc" -L/dev/null \
  -Wl,--start-group -lc -lgcc -Wl,--end-group \
  -Wl,-dynamic-linker,"$ldso_pathname" -Wl,-nostdlib
exit 1
fi

exec "$gcc" -std=gnu99 -nostdinc -nostdlib \
  -isystem "$libc_inc" -isystem "$gcc_inc" \
  "$@" \
  -L"$libc_lib" -L"$libgcc" -L/dev/null \

--XsQoSWH+UP9D9v3l--