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Old 07-05-2008, 11:47 AM
David Woodhouse
 
Default cross-compilation for binutils.

Jakub, please could we apply this patch to the binutils specfile?

It provides an optional %{binutils_target} macro which, when defined,
will generate a cross-binutils package. But when it's _not_ defined, as
it won't be for your builds or in the build system, it just builds a
native binutils as before.

This will make it easier for people to build cross-binutils based
exactly on the the Fedora binutils packages.

We'll then want to look at how best to get a set of cross-binutils
packages into Fedora, without adversely affecting your workflow on the
native binutils.

The nave approach is just to _copy_ the binutils package to various new
$ARCH-binutils packages. But hopefully the the infrastructure folks can
come up with some trick in package CVS or in koji which will make it
simpler than that.

Index: binutils.spec
================================================== =================
RCS file: /cvs/pkgs/rpms/binutils/F-9/binutils.spec,v
retrieving revision 1.132
diff -u -r1.132 binutils.spec
--- binutils.spec 8 Apr 2008 14:06:03 -0000 1.132
+++ binutils.spec 5 Jul 2008 11:39:42 -0000
@@ -1,5 +1,13 @@
+%if "%{?binutils_target}" == ""
+%define binutils_target %{_target_platform}
+%define isnative 1
+%else
+%define cross %{binutils_target}-
+%define isnative 0
+%endif
+
Summary: A GNU collection of binary utilities.
-Name: binutils
+Name: %{?cross}binutils
Version: 2.18.50.0.6
Release: 2
License: GPLv3+
@@ -54,7 +62,7 @@
to consider using libelf instead of BFD.

%prep
-%setup -q
+%setup -q -n binutils-%{version}
%patch1 -p0 -b .ltconfig-multilib~
%patch2 -p0 -b .ppc64-pie~
%patch3 -p0 -b .place-orphan~
@@ -68,7 +76,7 @@
%patch7 -p0 -b .version~
%patch8 -p0 -b .pclmul~

-# On ppc64 we might use 64K pages
+# On ppc64 we might use 64KiB pages
sed -i -e '/#define.*ELF_COMMONPAGESIZE/s/0x1000$/0x10000/' bfd/elf*ppc.c
# LTP sucks
perl -pi -e 's/i[3-7]86/i[34567]86/g' */conf*
@@ -80,24 +88,37 @@
sed -i -e 's/^libopcodes_la_LDFLAGS = /&-Wl,-Bsymbolic-functions /' opcodes/Makefile.{am,in}
fi
touch */configure
+sed -i -e 's/^ PACKAGE=/ PACKAGE=%{?cross}/' */configure

%build
-mkdir build-%{_target_platform}
-cd build-%{_target_platform}
+echo target is %{binutils_target}
+mkdir build-%{binutils_target}
+cd build-%{binutils_target}
CARGS=
-%ifarch sparc ppc s390
-CARGS=--enable-64-bit-bfd
-%endif
-%ifarch ia64
-CARGS=--enable-targets=i386-linux
+case %{binutils_target} in
+ sparc*|ppc*|s390*)
+ CARGS=--enable-64-bit-bfd
+ ;;
+ ia64*)
+ CARGS=--enable-targets=i386-linux
+ ;;
+esac
+%if %isnative
+ SHAREDARGS=--enable-shared
+ TARGET=%{binutils_target}
+ SYSROOT=
+%else
+ SHAREDARGS=--disable-shared
+ TARGET="--target %{binutils_target}"
+ SYSROOT="--with-sysroot=/usr/%{binutils_target}"
%endif
CC="gcc -L`pwd`/bfd/.libs/" CFLAGS="${CFLAGS:-%optflags}" ../configure
- %{_target_platform} --prefix=%{_prefix} --exec-prefix=%{_exec_prefix}
+ $TARGET --prefix=%{_prefix} --exec-prefix=%{_exec_prefix}
--bindir=%{_bindir} --sbindir=%{_sbindir} --sysconfdir=%{_sysconfdir}
--datadir=%{_datadir} --includedir=%{_includedir} --libdir=%{_libdir}
--libexecdir=%{_libexecdir} --localstatedir=%{_localstatedir}
--sharedstatedir=%{_sharedstatedir} --mandir=%{_mandir}
- --infodir=%{_infodir} --enable-shared $CARGS --disable-werror
+ --infodir=%{_infodir} $SHAREDARGS $CARGS --disable-werror
--with-bugurl=http://bugzilla.redhat.com/bugzilla/
make %{_smp_mflags} tooldir=%{_prefix} all
make %{_smp_mflags} tooldir=%{_prefix} info
@@ -110,8 +131,9 @@
%install
rm -rf %{buildroot}
mkdir -p %{buildroot}%{_prefix}
-cd build-%{_target_platform}
+cd build-%{binutils_target}
%makeinstall
+%if %isnative
make prefix=%{buildroot}%{_prefix} infodir=%{buildroot}%{_infodir} install-info
gzip -q9f %{buildroot}%{_infodir}/*.info*

@@ -133,10 +155,6 @@
# Remove libtool files, which reference the .so libs
rm -f %{buildroot}%{_prefix}/%{_lib}/lib{bfd,opcodes}.la

-# This one comes from gcc
-rm -f %{buildroot}%{_infodir}/dir
-rm -rf %{buildroot}%{_prefix}/%{_target_platform}
-
%ifarch %{ix86} x86_64 ppc ppc64 s390 s390x sparc sparc64
sed -i -e '/^#include "ansidecl.h"/{p;s~^.*$~#include <bits/wordsize.h>~;}'
%ifarch %{ix86} x86_64
@@ -154,22 +172,36 @@
%endif
touch -r ../bfd/bfd-in2.h %{buildroot}%{_prefix}/include/bfd.h

+%else # native
+# For cross-binutils we drop the documentation.
+rm -rf %{buildroot}%{_infodir}
+#rm -rf %{buildroot}%{_prefix}/share/locale
+#rm -rf %{buildroot}%{_mandir}
+rm -rf %{buildroot}%{_prefix}/%{_lib}/libiberty.a
+%endif # native
+
+# This one comes from gcc
+rm -f %{buildroot}%{_infodir}/dir
+rm -rf %{buildroot}%{_prefix}/%{binutils_target}
+
+
cd ..
-%find_lang binutils
-%find_lang opcodes
-%find_lang bfd
-%find_lang gas
-%find_lang ld
-%find_lang gprof
-cat opcodes.lang >> binutils.lang
-cat bfd.lang >> binutils.lang
-cat gas.lang >> binutils.lang
-cat ld.lang >> binutils.lang
-cat gprof.lang >> binutils.lang
+%find_lang %{?cross}binutils
+%find_lang %{?cross}opcodes
+%find_lang %{?cross}bfd
+%find_lang %{?cross}gas
+%find_lang %{?cross}ld
+%find_lang %{?cross}gprof
+cat %{?cross}opcodes.lang >> %{?cross}binutils.lang
+cat %{?cross}bfd.lang >> %{?cross}binutils.lang
+cat %{?cross}gas.lang >> %{?cross}binutils.lang
+cat %{?cross}ld.lang >> %{?cross}binutils.lang
+cat %{?cross}gprof.lang >> %{?cross}binutils.lang

%clean
rm -rf %{buildroot}

+%if %isnative
%post
/sbin/ldconfig
/sbin/install-info --info-dir=%{_infodir} %{_infodir}/as.info.gz
@@ -200,12 +232,14 @@
if [ $1 = 0 ] ;then
/sbin/install-info --delete --info-dir=%{_infodir} %{_infodir}/bfd.info.gz || :
fi
+%endif # native

-%files -f binutils.lang
+%files -f %{?cross}binutils.lang
%defattr(-,root,root)
%doc README
%{_prefix}/bin/*
%{_mandir}/man1/*
+%if %isnative
%{_prefix}/%{_lib}/lib*.so
%{_infodir}/[^b]*info*
%{_infodir}/binutils*info*
@@ -215,8 +249,12 @@
%{_prefix}/include/*
%{_prefix}/%{_lib}/lib*.a
%{_infodir}/bfd*info*
+%endif # native

%changelog
+* Sat Jul 5 2008 David Woodhouse <david.woodhouse@intel.com> 2.18.50.0.6-3
+- Add %%{binutils_target} macro to support building cross-binutils
+
* Tue Apr 8 2008 Jakub Jelinek <jakub@redhat.com> 2.18.50.0.6-2
- backport .clmul -> .pclmul renaming


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Old 07-05-2008, 12:53 PM
Enrico Scholz
 
Default cross-compilation for binutils.

David Woodhouse <dwmw2@infradead.org> writes:

> -CARGS=--enable-targets=i386-linux
> +case %{binutils_target} in
> + sparc*|ppc*|s390*)
> + CARGS=--enable-64-bit-bfd
> + ;;
> + ia64*)
> + CARGS=--enable-targets=i386-linux
> + ;;
> +esac

Something like

| --enable-targets=%_host

should be added everytime to allow e.g. 'strip' to work on both native
and on target binaries. This is required when building cross-rpms which
are providing target and native binaries.


> + SYSROOT="--with-sysroot=/usr/%{binutils_target}"

Sysroot should be '/usr/%binutils_target/sys-root' (which is the value
assumed by gcc). E.g. native binaries (e.g. the cross gcc) are usually
under /usr/%binutils_target/bin and your sysroot would conflict with it.



Enrico

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Old 07-05-2008, 01:32 PM
David Woodhouse
 
Default cross-compilation for binutils.

On Sat, 2008-07-05 at 14:53 +0200, Enrico Scholz wrote:
> David Woodhouse <dwmw2@infradead.org> writes:
>
> > -CARGS=--enable-targets=i386-linux
> > +case %{binutils_target} in
> > + sparc*|ppc*|s390*)
> > + CARGS=--enable-64-bit-bfd
> > + ;;
> > + ia64*)
> > + CARGS=--enable-targets=i386-linux
> > + ;;
> > +esac
>
> Something like
>
> | --enable-targets=%_host
>
> should be added everytime to allow e.g. 'strip' to work on both native
> and on target binaries. This is required when building cross-rpms which
> are providing target and native binaries.

Is it really? You already have to use the appropriate compiler and
linker for native vs. target binaries -- why can't you use the
appropriate version of 'strip', too?

And even if you _do_ need it, it sounds like that's a job for a
'binutils-multi' configured with --enable-targets=all. I'm not sure
that, e.g., my i686-redhat-linux-gcc should also be able to strip native
PowerPC binaries.

>
> > + SYSROOT="--with-sysroot=/usr/%{binutils_target}"
>
> Sysroot should be '/usr/%binutils_target/sys-root' (which is the value
> assumed by gcc). E.g. native binaries (e.g. the cross gcc) are usually
> under /usr/%binutils_target/bin and your sysroot would conflict with it.

OK, I'll fix that.

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Old 07-05-2008, 01:35 PM
David Woodhouse
 
Default cross-compilation for binutils.

On Sat, 2008-07-05 at 14:53 +0200, Enrico Scholz wrote:
> building cross-rpms which are providing target and native binaries.

Oh, and... why in $DEITY's name would you be doing that?

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Old 07-05-2008, 02:10 PM
Enrico Scholz
 
Default cross-compilation for binutils.

David Woodhouse <dwmw2@infradead.org> writes:

>> Something like
>>
>> | --enable-targets=%_host
>>
>> should be added everytime to allow e.g. 'strip' to work on both native
>> and on target binaries. This is required when building cross-rpms which
>> are providing target and native binaries.
>
> Is it really? You already have to use the appropriate compiler and
> linker for native vs. target binaries -- why can't you use the
> appropriate version of 'strip', too?

rpm magic; final %__spec_install_post makes something like

+ /usr/lib/rpm/redhat/brp-compress
+ /usr/lib/rpm/redhat/brp-strip-static-archive arm-iwmmxt-linux-gnueabi-strip
+ /usr/lib/rpm/redhat/brp-strip-comment-note arm-iwmmxt-linux-gnueabi-strip arm-iwmmxt-linux-gnueabi-objdump
+

and does not differ between target and native binaries.


> And even if you _do_ need it, it sounds like that's a job for a
> 'binutils-multi' configured with --enable-targets=all. I'm not sure
> that, e.g., my i686-redhat-linux-gcc should also be able to strip
> native PowerPC binaries.

There seems to be some overhead when adding 64 bit target support for 32
bit hosts

https://bugzilla.redhat.com/show_bug.cgi?id=63618




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Old 07-05-2008, 02:21 PM
Enrico Scholz
 
Default cross-compilation for binutils.

David Woodhouse <dwmw2@infradead.org> writes:

>> building cross-rpms which are providing target and native binaries.
>
> Oh, and... why in $DEITY's name would you be doing that?

For the same reasons why I prefer RPM based distributions to
e.g. Gentoo. See

https://www.cvg.de/people/ensc/cross/

for a cross-rpm with full dependencies.



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Old 07-05-2008, 02:52 PM
David Woodhouse
 
Default cross-compilation for binutils.

On Sat, 2008-07-05 at 16:10 +0200, Enrico Scholz wrote:
> David Woodhouse <dwmw2@infradead.org> writes:
>
> >> Something like
> >>
> >> | --enable-targets=%_host
> >>
> >> should be added everytime to allow e.g. 'strip' to work on both native
> >> and on target binaries. This is required when building cross-rpms which
> >> are providing target and native binaries.
> >
> > Is it really? You already have to use the appropriate compiler and
> > linker for native vs. target binaries -- why can't you use the
> > appropriate version of 'strip', too?
>
> rpm magic; final %__spec_install_post makes something like
>
> + /usr/lib/rpm/redhat/brp-compress
> + /usr/lib/rpm/redhat/brp-strip-static-archive arm-iwmmxt-linux-gnueabi-strip
> + /usr/lib/rpm/redhat/brp-strip-comment-note arm-iwmmxt-linux-gnueabi-strip arm-iwmmxt-linux-gnueabi-objdump
> +
>
> and does not differ between target and native binaries.

Hm, OK. I suppose it doesn't hurt much. Updated patch then...

Index: binutils.spec
================================================== =================
RCS file: /cvs/pkgs/rpms/binutils/F-9/binutils.spec,v
retrieving revision 1.132
diff -u -r1.132 binutils.spec
--- binutils.spec 8 Apr 2008 14:06:03 -0000 1.132
+++ binutils.spec 5 Jul 2008 14:51:20 -0000
@@ -1,5 +1,13 @@
+%if "%{?binutils_target}" == ""
+%define binutils_target %{_target_platform}
+%define isnative 1
+%else
+%define cross %{binutils_target}-
+%define isnative 0
+%endif
+
Summary: A GNU collection of binary utilities.
-Name: binutils
+Name: %{?cross}binutils
Version: 2.18.50.0.6
Release: 2
License: GPLv3+
@@ -54,7 +62,7 @@
to consider using libelf instead of BFD.

%prep
-%setup -q
+%setup -q -n binutils-%{version}
%patch1 -p0 -b .ltconfig-multilib~
%patch2 -p0 -b .ppc64-pie~
%patch3 -p0 -b .place-orphan~
@@ -68,7 +76,7 @@
%patch7 -p0 -b .version~
%patch8 -p0 -b .pclmul~

-# On ppc64 we might use 64K pages
+# On ppc64 we might use 64KiB pages
sed -i -e '/#define.*ELF_COMMONPAGESIZE/s/0x1000$/0x10000/' bfd/elf*ppc.c
# LTP sucks
perl -pi -e 's/i[3-7]86/i[34567]86/g' */conf*
@@ -80,24 +88,37 @@
sed -i -e 's/^libopcodes_la_LDFLAGS = /&-Wl,-Bsymbolic-functions /' opcodes/Makefile.{am,in}
fi
touch */configure
+sed -i -e 's/^ PACKAGE=/ PACKAGE=%{?cross}/' */configure

%build
-mkdir build-%{_target_platform}
-cd build-%{_target_platform}
+echo target is %{binutils_target}
+mkdir build-%{binutils_target}
+cd build-%{binutils_target}
CARGS=
-%ifarch sparc ppc s390
-CARGS=--enable-64-bit-bfd
-%endif
-%ifarch ia64
-CARGS=--enable-targets=i386-linux
+case %{binutils_target} in
+ sparc*|ppc*|s390*)
+ CARGS=--enable-64-bit-bfd
+ ;;
+ ia64*)
+ CARGS=--enable-targets=i386-linux
+ ;;
+esac
+%if %isnative
+ SHAREDARGS=--enable-shared
+ TARGET=%{binutils_target}
+ SYSROOT=
+%else
+ SHAREDARGS=--disable-shared
+ TARGET="--target %{binutils_target} --enable-targets=%_host"
+ SYSROOT="--with-sysroot=/usr/%{binutils_target}/sys-root"
%endif
CC="gcc -L`pwd`/bfd/.libs/" CFLAGS="${CFLAGS:-%optflags}" ../configure
- %{_target_platform} --prefix=%{_prefix} --exec-prefix=%{_exec_prefix}
+ $TARGET --prefix=%{_prefix} --exec-prefix=%{_exec_prefix}
--bindir=%{_bindir} --sbindir=%{_sbindir} --sysconfdir=%{_sysconfdir}
--datadir=%{_datadir} --includedir=%{_includedir} --libdir=%{_libdir}
--libexecdir=%{_libexecdir} --localstatedir=%{_localstatedir}
--sharedstatedir=%{_sharedstatedir} --mandir=%{_mandir}
- --infodir=%{_infodir} --enable-shared $CARGS --disable-werror
+ --infodir=%{_infodir} $SHAREDARGS $CARGS --disable-werror
--with-bugurl=http://bugzilla.redhat.com/bugzilla/
make %{_smp_mflags} tooldir=%{_prefix} all
make %{_smp_mflags} tooldir=%{_prefix} info
@@ -110,8 +131,9 @@
%install
rm -rf %{buildroot}
mkdir -p %{buildroot}%{_prefix}
-cd build-%{_target_platform}
+cd build-%{binutils_target}
%makeinstall
+%if %isnative
make prefix=%{buildroot}%{_prefix} infodir=%{buildroot}%{_infodir} install-info
gzip -q9f %{buildroot}%{_infodir}/*.info*

@@ -133,10 +155,6 @@
# Remove libtool files, which reference the .so libs
rm -f %{buildroot}%{_prefix}/%{_lib}/lib{bfd,opcodes}.la

-# This one comes from gcc
-rm -f %{buildroot}%{_infodir}/dir
-rm -rf %{buildroot}%{_prefix}/%{_target_platform}
-
%ifarch %{ix86} x86_64 ppc ppc64 s390 s390x sparc sparc64
sed -i -e '/^#include "ansidecl.h"/{p;s~^.*$~#include <bits/wordsize.h>~;}'
%ifarch %{ix86} x86_64
@@ -154,22 +172,36 @@
%endif
touch -r ../bfd/bfd-in2.h %{buildroot}%{_prefix}/include/bfd.h

+%else # native
+# For cross-binutils we drop the documentation.
+rm -rf %{buildroot}%{_infodir}
+#rm -rf %{buildroot}%{_prefix}/share/locale
+#rm -rf %{buildroot}%{_mandir}
+rm -rf %{buildroot}%{_prefix}/%{_lib}/libiberty.a
+%endif # native
+
+# This one comes from gcc
+rm -f %{buildroot}%{_infodir}/dir
+rm -rf %{buildroot}%{_prefix}/%{binutils_target}
+
+
cd ..
-%find_lang binutils
-%find_lang opcodes
-%find_lang bfd
-%find_lang gas
-%find_lang ld
-%find_lang gprof
-cat opcodes.lang >> binutils.lang
-cat bfd.lang >> binutils.lang
-cat gas.lang >> binutils.lang
-cat ld.lang >> binutils.lang
-cat gprof.lang >> binutils.lang
+%find_lang %{?cross}binutils
+%find_lang %{?cross}opcodes
+%find_lang %{?cross}bfd
+%find_lang %{?cross}gas
+%find_lang %{?cross}ld
+%find_lang %{?cross}gprof
+cat %{?cross}opcodes.lang >> %{?cross}binutils.lang
+cat %{?cross}bfd.lang >> %{?cross}binutils.lang
+cat %{?cross}gas.lang >> %{?cross}binutils.lang
+cat %{?cross}ld.lang >> %{?cross}binutils.lang
+cat %{?cross}gprof.lang >> %{?cross}binutils.lang

%clean
rm -rf %{buildroot}

+%if %isnative
%post
/sbin/ldconfig
/sbin/install-info --info-dir=%{_infodir} %{_infodir}/as.info.gz
@@ -200,12 +232,14 @@
if [ $1 = 0 ] ;then
/sbin/install-info --delete --info-dir=%{_infodir} %{_infodir}/bfd.info.gz || :
fi
+%endif # native

-%files -f binutils.lang
+%files -f %{?cross}binutils.lang
%defattr(-,root,root)
%doc README
%{_prefix}/bin/*
%{_mandir}/man1/*
+%if %isnative
%{_prefix}/%{_lib}/lib*.so
%{_infodir}/[^b]*info*
%{_infodir}/binutils*info*
@@ -215,8 +249,12 @@
%{_prefix}/include/*
%{_prefix}/%{_lib}/lib*.a
%{_infodir}/bfd*info*
+%endif # native

%changelog
+* Sat Jul 5 2008 David Woodhouse <dwmw2@linux.intel.com> 2.18.50.0.6-3
+- Add %%{binutils_target} macro to support building cross-binutils
+
* Tue Apr 8 2008 Jakub Jelinek <jakub@redhat.com> 2.18.50.0.6-2
- backport .clmul -> .pclmul renaming



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Old 07-07-2008, 01:29 PM
Jarod Wilson
 
Default cross-compilation for binutils.

On Saturday 05 July 2008 07:47:24 am David Woodhouse wrote:
> +* Sat Jul *5 2008 David Woodhouse <david.woodhouse@intel.com>

I can hear PowerBook's the world over gently weeping...

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Old 07-07-2008, 01:48 PM
Josh Boyer
 
Default cross-compilation for binutils.

On Mon, 2008-07-07 at 09:29 -0400, Jarod Wilson wrote:
> On Saturday 05 July 2008 07:47:24 am David Woodhouse wrote:
> > +* Sat Jul 5 2008 David Woodhouse <david.woodhouse@intel.com>
>
> I can hear PowerBook's the world over gently weeping...

Those are the users you hear, not the machines. Oh, and me. Loudly.

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Old 07-21-2008, 03:53 PM
Gary Thomas
 
Default cross-compilation for binutils.

David Woodhouse wrote:

On Sat, 2008-07-05 at 16:10 +0200, Enrico Scholz wrote:


David Woodhouse <dwmw2@infradead.org> writes:



Something like

| --enable-targets=%_host

should be added everytime to allow e.g. 'strip' to work on both native
and on target binaries. This is required when building cross-rpms which
are providing target and native binaries.


Is it really? You already have to use the appropriate compiler and
linker for native vs. target binaries -- why can't you use the
appropriate version of 'strip', too?


rpm magic; final %__spec_install_post makes something like

+ /usr/lib/rpm/redhat/brp-compress
+ /usr/lib/rpm/redhat/brp-strip-static-archive arm-iwmmxt-linux-gnueabi-strip
+ /usr/lib/rpm/redhat/brp-strip-comment-note arm-iwmmxt-linux-gnueabi-strip arm-iwmmxt-linux-gnueabi-objdump
+

and does not differ between target and native binaries.



Hm, OK. I suppose it doesn't hurt much. Updated patch then...


<...snip...>

Has this work/discussion progressed at all? I'm interested in cross
tools (x86->ppc) and would

like to get involved in making these happen.

Any pointers on how I can get started (where/how to pick up the current
work, etc)?


Thanks

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