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Old 11-09-2011, 02:37 PM
Joakim Tjernlund
 
Default crossdev builds libiberty.a with host arch

Tried to build oprofile
./configure --host powerpc-softfloat-linux-gnu LDFLAGS="-L/usr/lib/binutils/powerpc-softfloat-linux-gnu -L/usr/local/src/FS/fsall/basicfs/usr/lib" CPPFLAGS=-I/usr/lib/binutils/powerpc-softfloat-linux-gnu/include

configure: error: liberty library not found

this appears to be caused by crossdevs libiberty.a beeing built with the hosts arch instead of powerpc:
nm /usr/i686-pc-linux-gnu/powerpc-softfloat-linux-gnu/lib/libiberty.a | grep __i686
00000000 T __i686.get_pc_thunk.bx
00000000 T __i686.get_pc_thunk.bx
....

Bug in crossdev, oprofile or user error?

Jocke
 
Old 11-09-2011, 02:49 PM
"YouTube Support"
 
Default crossdev builds libiberty.a with host arch

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Original Message Follows:
------------------------
From: Joakim Tjernlund <joakim.tjernlund@transmode.se>
Subject: [gentoo-embedded] crossdev builds libiberty.a with host arch
Date: Wed, 9 Nov 2011 16:37:18 +0100


Tried to build oprofile
./configure --host powerpc-softfloat-linux-gnu
LDFLAGS="-L/usr/lib/binutils/powerpc-softfloat-linux-gnu
-L/usr/local/src/FS/fsall/basicfs/usr/lib"
CPPFLAGS=-I/usr/lib/binutils/powerpc-softfloat-linux-gnu/include

configure: error: liberty library not found

this appears to be caused by crossdevs libiberty.a beeing built with the
hosts arch instead of powerpc:
nm /usr/i686-pc-linux-gnu/powerpc-softfloat-linux-gnu/lib/libiberty.a |
grep __i686
00000000 T __i686.get_pc_thunk.bx
00000000 T __i686.get_pc_thunk.bx
....

Bug in crossdev, oprofile or user error?

Jocke
 
Old 11-10-2011, 02:53 AM
Mike Frysinger
 
Default crossdev builds libiberty.a with host arch

On Wednesday 09 November 2011 10:49:23 YouTube Support wrote:
> You are receiving this automated reply because you have sent mail to
> an invalid email address. If you are trying to contact YouTube,
> please visit the YouTube Help Center at:
> http://www.google.com/support/youtube
>
> If you're unable to find the answer to your question in the Help
> Center, you may use the contact forms located there to send us your
> question.

wtf is this
-mike
 
Old 11-10-2011, 02:55 AM
Mike Frysinger
 
Default crossdev builds libiberty.a with host arch

On Wednesday 09 November 2011 10:37:18 Joakim Tjernlund wrote:
> Tried to build oprofile
> ./configure --host powerpc-softfloat-linux-gnu
> LDFLAGS="-L/usr/lib/binutils/powerpc-softfloat-linux-gnu
> -L/usr/local/src/FS/fsall/basicfs/usr/lib"
> CPPFLAGS=-I/usr/lib/binutils/powerpc-softfloat-linux-gnu/include
>
> configure: error: liberty library not found
>
> this appears to be caused by crossdevs libiberty.a beeing built with the
> hosts arch instead of powerpc: nm
> /usr/i686-pc-linux-gnu/powerpc-softfloat-linux-gnu/lib/libiberty.a | grep
> __i686 00000000 T __i686.get_pc_thunk.bx
> 00000000 T __i686.get_pc_thunk.bx
> ....
>
> Bug in crossdev, oprofile or user error?

user error. this is expected behavior: the libs under
/usr/$CHOST/$CTARGET/lib/ are libraries that will be linked for $CHOST
binaries but used to debug $CTARGET code. libiberty is a bad example as it
generally doesn't have any target info in it, so let's use libbfd.a as an
example instead.

linking against /usr/$CHOST/$CTARGET/lib/libbfd.a will let you run code on
$CHOST but load ELFs that are compiled for $CTARGET.

if you want to build oprofile for $CTARGET, you need to build binutils for
$CTARGET (CHOST==CTARGET).
-mike
 
Old 11-11-2011, 07:26 AM
Joakim Tjernlund
 
Default crossdev builds libiberty.a with host arch

Mike Frysinger <vapier@gentoo.org> wrote on 2011/11/10 04:55:58:
> From: Mike Frysinger <vapier@gentoo.org>
> On Wednesday 09 November 2011 10:37:18 Joakim Tjernlund wrote:
> > Tried to build oprofile
> > ./configure --host powerpc-softfloat-linux-gnu
> > LDFLAGS="-L/usr/lib/binutils/powerpc-softfloat-linux-gnu
> > -L/usr/local/src/FS/fsall/basicfs/usr/lib"
> > CPPFLAGS=-I/usr/lib/binutils/powerpc-softfloat-linux-gnu/include
> >
> > configure: error: liberty library not found
> >
> > this appears to be caused by crossdevs libiberty.a beeing built with the
> > hosts arch instead of powerpc: nm
> > /usr/i686-pc-linux-gnu/powerpc-softfloat-linux-gnu/lib/libiberty.a | grep
> > __i686 00000000 T __i686.get_pc_thunk.bx
> > 00000000 T __i686.get_pc_thunk.bx
> > ....
> >
> > Bug in crossdev, oprofile or user error?
>
> user error. this is expected behavior: the libs under
> /usr/$CHOST/$CTARGET/lib/ are libraries that will be linked for $CHOST
> binaries but used to debug $CTARGET code. libiberty is a bad example as it
> generally doesn't have any target info in it, so let's use libbfd.a as an
> example instead.
>
> linking against /usr/$CHOST/$CTARGET/lib/libbfd.a will let you run code on
> $CHOST but load ELFs that are compiled for $CTARGET.
>
> if you want to build oprofile for $CTARGET, you need to build binutils for
> $CTARGET (CHOST==CTARGET).
> -mike

Ahh, too long time since I mucked around with sysroot. I installed binutils and now I got
a the correct libbfd.so and libiberty.a under
/usr/powerpc-softfloat-linux-gnu/usr/lib/binutils/powerpc-softfloat-linux-gnu/2.16.1/
There is no symlink under
/usr/powerpc-softfloat-linux-gnu/lib/
though which forces me to pass -L and -I options too gcc in order to
build oprofile. Would be nice if the symlinks were created to make the
x-compile env. mimic the normal host env.

Same for libbfd and headers for those 2 libs.

Jocke
 
Old 11-11-2011, 01:46 PM
Mike Frysinger
 
Default crossdev builds libiberty.a with host arch

On Friday 11 November 2011 03:26:22 Joakim Tjernlund wrote:
> I installed binutils
> and now I got a the correct libbfd.so and libiberty.a under
> /usr/powerpc-softfloat-linux-gnu/usr/lib/binutils/powerpc-softfloat-linux-
> gnu/2.16.1/ There is no symlink under
> /usr/powerpc-softfloat-linux-gnu/lib/
> though which forces me to pass -L and -I options too gcc in order to
> build oprofile. Would be nice if the symlinks were created to make the
> x-compile env. mimic the normal host env.

try running:
ROOT=/usr/powerpc-softfloat-linux-gnu binutils-config 1
-mike
 
Old 11-11-2011, 02:47 PM
Joakim Tjernlund
 
Default crossdev builds libiberty.a with host arch

Mike Frysinger <vapier@gentoo.org> wrote on 2011/11/11 15:46:44:
>
> On Friday 11 November 2011 03:26:22 Joakim Tjernlund wrote:
> > I installed binutils
> > and now I got a the correct libbfd.so and libiberty.a under
> > /usr/powerpc-softfloat-linux-gnu/usr/lib/binutils/powerpc-softfloat-linux-
> > gnu/2.16.1/ There is no symlink under
> > /usr/powerpc-softfloat-linux-gnu/lib/
> > though which forces me to pass -L and -I options too gcc in order to
> > build oprofile. Would be nice if the symlinks were created to make the
> > x-compile env. mimic the normal host env.
>
> try running:
> ROOT=/usr/powerpc-softfloat-linux-gnu binutils-config 1
> -mike

that got me
/usr/powerpc-softfloat-linux-gnu/usr/i686-pc-linux-gnu/powerpc-softfloat-linux-gnu/lib/libiberty.a ->
/usr/lib/binutils/powerpc-softfloat-linux-gnu/2.16.1/libiberty.a

but this is a host arch libiberty.a so can't use it for x-compile

No sign of any new libiberty.h header files though.
Did I miss something?

Jocke
 
Old 11-11-2011, 03:01 PM
Mike Frysinger
 
Default crossdev builds libiberty.a with host arch

On Friday 11 November 2011 10:47:02 Joakim Tjernlund wrote:
> Mike Frysinger <vapier@gentoo.org> wrote on 2011/11/11 15:46:44:
> > On Friday 11 November 2011 03:26:22 Joakim Tjernlund wrote:
> > > I installed binutils
> > > and now I got a the correct libbfd.so and libiberty.a under
> > >
> > > /usr/powerpc-softfloat-linux-gnu/usr/lib/binutils/powerpc-softfloat-li
> > > nux-
> > >
> > > gnu/2.16.1/ There is no symlink under
> > >
> > > /usr/powerpc-softfloat-linux-gnu/lib/
> > >
> > > though which forces me to pass -L and -I options too gcc in order to
> > > build oprofile. Would be nice if the symlinks were created to make the
> > > x-compile env. mimic the normal host env.
> >
> > try running:
> > ROOT=/usr/powerpc-softfloat-linux-gnu binutils-config 1
>
> that got me
> /usr/powerpc-softfloat-linux-gnu/usr/i686-pc-linux-gnu/powerpc-softfloat-l
> inux-gnu/lib/libiberty.a ->
> /usr/lib/binutils/powerpc-softfloat-linux-gnu/2.16.1/libiberty.a
>
> but this is a host arch libiberty.a so can't use it for x-compile

hmm, yeah, that's because binutils-config doesn't use relative symlinks. i
wonder if relative would be fine since it isn't crossing the /usr boundary ...


> No sign of any new libiberty.h header files though.
> Did I miss something?

you might also have to manually set CHOST otherwise binutils-config will think
it's setting up a cross-compiler.

CHOST=powerpc-softfloat-linux-gnu
ROOT=/usr/powerpc-softfloat-linux-gnu
binutils-config 1
-mike
 
Old 11-12-2011, 08:31 PM
Joakim Tjernlund
 
Default crossdev builds libiberty.a with host arch

Mike Frysinger <vapier@gentoo.org> wrote on 2011/11/11 17:01:28:
>
> On Friday 11 November 2011 10:47:02 Joakim Tjernlund wrote:
> > Mike Frysinger <vapier@gentoo.org> wrote on 2011/11/11 15:46:44:
> > > On Friday 11 November 2011 03:26:22 Joakim Tjernlund wrote:
> > > > I installed binutils
> > > > and now I got a the correct libbfd.so and libiberty.a under
> > > >
> > > > /usr/powerpc-softfloat-linux-gnu/usr/lib/binutils/powerpc-softfloat-li
> > > > nux-
> > > >
> > > > gnu/2.16.1/ There is no symlink under
> > > >
> > > > /usr/powerpc-softfloat-linux-gnu/lib/
> > > >
> > > > though which forces me to pass -L and -I options too gcc in order to
> > > > build oprofile. Would be nice if the symlinks were created to make the
> > > > x-compile env. mimic the normal host env.
> > >
> > > try running:
> > > ROOT=/usr/powerpc-softfloat-linux-gnu binutils-config 1
> >
> > that got me
> > /usr/powerpc-softfloat-linux-gnu/usr/i686-pc-linux-gnu/powerpc-softfloat-l
> > inux-gnu/lib/libiberty.a ->
> > /usr/lib/binutils/powerpc-softfloat-linux-gnu/2.16.1/libiberty.a
> >
> > but this is a host arch libiberty.a so can't use it for x-compile
>
> hmm, yeah, that's because binutils-config doesn't use relative symlinks. i
> wonder if relative would be fine since it isn't crossing the /usr boundary ...

Possibly, can't think of a reason not to.

>
>
> > No sign of any new libiberty.h header files though.
> > Did I miss something?
>
> you might also have to manually set CHOST otherwise binutils-config will think
> it's setting up a cross-compiler.
>
> CHOST=powerpc-softfloat-linux-gnu
> ROOT=/usr/powerpc-softfloat-linux-gnu
> binutils-config 1

Nope, that didn't change anything

Jocke
 
Old 11-12-2011, 10:39 PM
Joakim Tjernlund
 
Default crossdev builds libiberty.a with host arch

>
> Mike Frysinger <vapier@gentoo.org> wrote on 2011/11/11 17:01:28:
> >
> > On Friday 11 November 2011 10:47:02 Joakim Tjernlund wrote:
> > > Mike Frysinger <vapier@gentoo.org> wrote on 2011/11/11 15:46:44:
> > > > On Friday 11 November 2011 03:26:22 Joakim Tjernlund wrote:
> > > > > I installed binutils
> > > > > and now I got a the correct libbfd.so and libiberty.a under
> > > > >
> > > > > /usr/powerpc-softfloat-linux-gnu/usr/lib/binutils/powerpc-softfloat-li
> > > > > nux-
> > > > >
> > > > > gnu/2.16.1/ There is no symlink under
> > > > >
> > > > > /usr/powerpc-softfloat-linux-gnu/lib/
> > > > >
> > > > > though which forces me to pass -L and -I options too gcc in order to
> > > > > build oprofile. Would be nice if the symlinks were created to make the
> > > > > x-compile env. mimic the normal host env.
> > > >
> > > > try running:
> > > > ROOT=/usr/powerpc-softfloat-linux-gnu binutils-config 1
> > >
> > > that got me
> > > /usr/powerpc-softfloat-linux-gnu/usr/i686-pc-linux-gnu/powerpc-softfloat-l
> > > inux-gnu/lib/libiberty.a ->
> > > /usr/lib/binutils/powerpc-softfloat-linux-gnu/2.16.1/libiberty.a
> > >
> > > but this is a host arch libiberty.a so can't use it for x-compile
> >
> > hmm, yeah, that's because binutils-config doesn't use relative symlinks. i
> > wonder if relative would be fine since it isn't crossing the /usr boundary ...
>
> Possibly, can't think of a reason not to.
>
> >
> >
> > > No sign of any new libiberty.h header files though.
> > > Did I miss something?
> >
> > you might also have to manually set CHOST otherwise binutils-config will think
> > it's setting up a cross-compiler.
> >
> > CHOST=powerpc-softfloat-linux-gnu
> > ROOT=/usr/powerpc-softfloat-linux-gnu
> > binutils-config 1
>
> Nope, that didn't change anything

oops, my mistake there is
ls -l /usr/powerpc-softfloat-linux-gnu/usr/include/libiberty.h
lrwxrwxrwx 1 root root 72 12 nov 22.26 /usr/powerpc-softfloat-linux-gnu/usr/include/libiberty.h -> /usr/lib/binutils/powerpc-softfloat-linux-gnu/2.16.1/include/libiberty.h

I guess crossdev should run binutils-config automatically?

BTW, somewhat offtopic but why isn't libtool-2.4.2 unstable yet?

Jocke
 

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