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Re: arm gnueabi problem with tls. (request for help)


--- Steven Newbury <s_j_newbury@yahoo.co.uk> wrote:
> > 
> > --- Khem Raj <khem@mvista.com> wrote:
> > 
> > > Steven Newbury said the following on 04/12/2006 12:19 PM:
> > > >> Looking back at the work I'd done to get it all working I realised
> that
> > I
> > > had
> > > >> it working at one point! I actually broke it when I was cleaning my
> > > patches
> > > >> up.
> > > >>  I'll give more details in a later post.
> > > >>
> > > >>     
> > > > Can anybody help me here?  I am missing the unwind symbols from libgcc
> > when
> > > > glibc attempts to link for the final time. I cannot understand why. 
> > > UNWIND_H
> > > > is being set to arm/unwind-arm.h and config.gcc is including t-bpapi.
> > > >
> > > > I can post my patches if it helps, but somebody must know how this all
> > fits
> > > together..
> > > >
> > > >   
> > > While configuring the gcc which you will use to build glibc you should 
> > > use this configure option--disable-libunwind-exceptions (assuming you 
> > > are using GCC 4.1)
> > > and set libc_cv_forced_unwind=yes in config.cache while building glibc.
> > > 
> > > Hope that helps
> > > 
> > Thanks, --disable-libunwind-exceptions got removed when I was trying 4.2. 
> > Hopefully that's it! Building now, fingers crossed!
> > 
> Nope that's not it.
> 
This is a better build output, previously it was built with -j3:

arm-iwmmxt-linux-gnueabi-gcc -nostdlib -nostartfiles -static -o
/var/tmp/portage/glibc-20060410/work/build-default-arm-iwmmxt-linux-gnueabi-nptl/elf/sln
  
/var/tmp/portage/glibc-20060410/work/build-default-arm-iwmmxt-linux-gnueabi-nptl/csu/crt1.o
/var/tmp/portage/glibc-20060410/work/build-default-arm-iwmmxt-linux-gnueabi-nptl/csu/crti.o
`arm-iwmmxt-linux-gnueabi-gcc --print-file-name=crtbegin.o`
/var/tmp/portage/glibc-20060410/work/build-default-arm-iwmmxt-linux-gnueabi-nptl/elf/sln.o

/var/tmp/portage/glibc-20060410/work/build-default-arm-iwmmxt-linux-gnueabi-nptl/libc.a
-lgcc  
/var/tmp/portage/glibc-20060410/work/build-default-arm-iwmmxt-linux-gnueabi-nptl/libc.a
`arm-iwmmxt-linux-gnueabi-gcc --print-file-name=crtend.o`
/var/tmp/portage/glibc-20060410/work/build-default-arm-iwmmxt-linux-gnueabi-nptl/csu/crtn.o
/var/tmp/portage/glibc-20060410/work/build-default-arm-iwmmxt-linux-gnueabi-nptl/libc.a(libc-start.o):(.ARM.exidx+0x0):
undefined reference to `__aeabi_unwind_cpp_pr0'
/var/tmp/portage/glibc-20060410/work/build-default-arm-iwmmxt-linux-gnueabi-nptl/libc.a(iofclose.o):(.ARM.exidx+0x0):
undefined reference to `__aeabi_unwind_cpp_pr0'
> ...
> This continues for every object in libc.a that references the unwind
> functions
> including _Unwind_Resume.

I have attached my current gcc patch.

Steve


		
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Attachment: iwmmxt.patch
Description: 2791827183-iwmmxt.patch

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