[gentoo-embedded] where is libgcc_so.1?

[gentoo-embedded] where is libgcc_so.1?

[Joakim Tjernlund]

Maybe I am just stupid (too long since I used crossdev) but
I cannot find libgcc_so.1 after building:
    crossdev\
	-s3 \
	--ex-gdb \
	--libc 2.11.2 \
	--binutils 2.20.1-r1 \
	--gcc 4.4.4-r2 \
	--kernel 2.6.30-r1 \
	--target powerpc-e300c2_softfloat-linux-gnu

As I recall NPTL want libgcc_so.1 no matter what I do. Isn't that
true in newer toolchains?

 Jocke

Re: [gentoo-embedded] where is libgcc_so.1?

[Mike Frysinger]

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On Monday, September 20, 2010 15:01:24 Joakim Tjernlund wrote:
> Maybe I am just stupid (too long since I used crossdev) but
> I cannot find libgcc_so.1 after building:
>     crossdev\
> 	-s3 \
> 	--ex-gdb \
> 	--libc 2.11.2 \
> 	--binutils 2.20.1-r1 \
> 	--gcc 4.4.4-r2 \
> 	--kernel 2.6.30-r1 \
> 	--target powerpc-e300c2_softfloat-linux-gnu
> 
> As I recall NPTL want libgcc_so.1 no matter what I do. Isn't that
> true in newer toolchains?

did you typo the name ?  gcc for most linux targets install a libgcc_s.so.1.
-mike

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Re: [gentoo-embedded] where is libgcc_so.1?

[Joakim Tjernlund]

Mike Frysinger <vapier@gentoo.org> wrote on 2010/09/20 22:01:24:
>
> On Monday, September 20, 2010 15:01:24 Joakim Tjernlund wrote:
> > Maybe I am just stupid (too long since I used crossdev) but
> > I cannot find libgcc_so.1 after building:
> >     crossdev\
> >    -s3 \
> >    --ex-gdb \
> >    --libc 2.11.2 \
> >    --binutils 2.20.1-r1 \
> >    --gcc 4.4.4-r2 \
> >    --kernel 2.6.30-r1 \
> >    --target powerpc-e300c2_softfloat-linux-gnu
> >
> > As I recall NPTL want libgcc_so.1 no matter what I do. Isn't that
> > true in newer toolchains?
>
> did you typo the name ?  gcc for most linux targets install a libgcc_s.so.1.

Yes, I meant libgcc_s.so.1. I cannot find it under /usr/lib/gcc/powerpc-e300c2_softfloat-linux-gnu
nor /usr/powerpc-e300c2_softfloat-linux-gnu/

There is a /usr/lib/gcc/powerpc-e300c2_softfloat-linux-gnu/4.4.4/libgcc.a though.

There is one for my old powerpc cross compiler, gcc-3.4.6

 Jocke

Re: [gentoo-embedded] where is libgcc_so.1?

[Joakim Tjernlund]

Joakim Tjernlund <joakim.tjernlund@transmode.se> wrote on 2010/09/20 22:46:43:
>
> Mike Frysinger <vapier@gentoo.org> wrote on 2010/09/20 22:01:24:
> >
> > On Monday, September 20, 2010 15:01:24 Joakim Tjernlund wrote:
> > > Maybe I am just stupid (too long since I used crossdev) but
> > > I cannot find libgcc_so.1 after building:
> > >     crossdev\
> > >    -s3 \
> > >    --ex-gdb \
> > >    --libc 2.11.2 \
> > >    --binutils 2.20.1-r1 \
> > >    --gcc 4.4.4-r2 \
> > >    --kernel 2.6.30-r1 \
> > >    --target powerpc-e300c2_softfloat-linux-gnu
> > >
> > > As I recall NPTL want libgcc_so.1 no matter what I do. Isn't that
> > > true in newer toolchains?
> >
> > did you typo the name ?  gcc for most linux targets install a libgcc_s.so.1.
>
> Yes, I meant libgcc_s.so.1. I cannot find it under /usr/lib/gcc/powerpc-
> e300c2_softfloat-linux-gnu
> nor /usr/powerpc-e300c2_softfloat-linux-gnu/

hmm, might this be due to me not build c++(using -s3 to crossdev)?
I guess I will find out next time I rebuild my tool chain.

Re: [gentoo-embedded] where is libgcc_so.1?

[Mike Frysinger]

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On Monday, September 20, 2010 16:46:43 Joakim Tjernlund wrote:
> Yes, I meant libgcc_s.so.1. I cannot find it under
> /usr/lib/gcc/powerpc-e300c2_softfloat-linux-gnu nor
> /usr/powerpc-e300c2_softfloat-linux-gnu/
> 
> There is a /usr/lib/gcc/powerpc-e300c2_softfloat-linux-gnu/4.4.4/libgcc.a
> though.

i'm guessing it's because you selected --stage3.  you really want --stage4.
-mike

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Re: [gentoo-embedded] where is libgcc_so.1?

[Joakim Tjernlund]

Mike Frysinger <vapier@gentoo.org> wrote on 2010/09/21 22:05:11:
>
> On Monday, September 20, 2010 16:46:43 Joakim Tjernlund wrote:
> > Yes, I meant libgcc_s.so.1. I cannot find it under
> > /usr/lib/gcc/powerpc-e300c2_softfloat-linux-gnu nor
> > /usr/powerpc-e300c2_softfloat-linux-gnu/
> >
> > There is a /usr/lib/gcc/powerpc-e300c2_softfloat-linux-gnu/4.4.4/libgcc.a
> > though.
>
> i'm guessing it's because you selected --stage3.  you really want --stage4.

Yes, I will try with -s4 later. I do think -s3 should include libgcc_s.so.1 too
if one selects NPTL as it requires libgcc_s.so.1

       Jocke

Re: [gentoo-embedded] where is libgcc_so.1?

[Mike Frysinger]

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On Wednesday, September 22, 2010 03:37:04 Joakim Tjernlund wrote:
> Mike Frysinger wrote on 2010/09/21 22:05:11:
> > On Monday, September 20, 2010 16:46:43 Joakim Tjernlund wrote:
> > > Yes, I meant libgcc_s.so.1. I cannot find it under
> > > /usr/lib/gcc/powerpc-e300c2_softfloat-linux-gnu nor
> > > /usr/powerpc-e300c2_softfloat-linux-gnu/
> > > 
> > > There is a
> > > /usr/lib/gcc/powerpc-e300c2_softfloat-linux-gnu/4.4.4/libgcc.a though.
> > 
> > i'm guessing it's because you selected --stage3.  you really want
> > --stage4.
> 
> Yes, I will try with -s4 later. I do think -s3 should include libgcc_s.so.1
> too if one selects NPTL as it requires libgcc_s.so.1

look at the stage list.  you have to build a bare compiler (stage1) before you 
can build the C library (stage3), and you need the C library before you can 
build shared libraries like libgcc_s.so.1 (stage4).
-mike

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Re: [gentoo-embedded] where is libgcc_so.1?

[Mike Frysinger]

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On Thursday, September 23, 2010 03:05:21 Joakim Tjernlund wrote:
> Mike Frysinger wrote on 2010/09/23 00:05:31:
> > look at the stage list.  you have to build a bare compiler (stage1)
> > before you can build the C library (stage3), and you need the C library
> > before you can build shared libraries like libgcc_s.so.1 (stage4).
> 
> A bit strange that s3 can build the pthread shared lib then?

no.  glibc dlopen's libgcc on the fly.  the pthreads source code has some 
comments in it explaining why.  although this chicken & egg problem is a 
pretty damn good reason -- you cant build shared gcc libs without a C library, 
so requiring your gcc to have shared libs would be problematic ...

> The help text for S4 only indicates that S4 builds a C++ compiler(which I
> don't need ATM, that is why I skipped s4)

i guess it is a bit misleading
-mike

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