Re: progress towards mipsel glibc-2.3.5

["Steven J. Hill" <sjhill at realitydiluted dot com>]

Dan Kegel wrote:
> > * sysdeps/mips/mips32/Makefile has "CC += -mabi=32" which causes my i386
> > host gcc used for the header config to choke when generating dependency
> > info.  I just added an "ifneq ($(findstring mipsel,$(CC)),) ... endif"
> > block around this to workaround (will only use -mabi=32 if the compiler
> > has 'mipsel' in it's name).
>
> If that ends up being the thing to do,
> we probably want to check whether $(CC) supports that flag.
> It might not have mipsel in the name... maybe checking
> the output of $(CC) -v would be best.
>
> > * glibc-headers won't compile due to the fact that several places are
> > checking for gcc-defined macros _MIPS_SIM and _MIPS_SZPTR.
> > I defined CFLAGS="-D_MIPS_SIM=_ABIO32 -D_MIPS_SZPTR=32" in the configure
> > to get around this.
> > I also had to add $(CFLAGS) after the $(CC) at Makerules:1285 so they
> > could be picked up.  I TOLD you these hacks were ugly :)
>
>
> Bleah!  :-)    There's clearly a better way, but I don't
> have it handy.
I have a better way and will post a patch later today.

> > * gcc was compiled with --disable-shared, and glibc-2.3.5's Makeconfig
> > tries to link with -lgcc_eh, which does not exist on a non-shared gcc
> > build (doesn't work to try --enable-shared, don't bother...).  I had to
> > comment Makeconfig lines 506 and 511 to remove the reference to
> > libgcc_eh (there was some attempt in this file to workaround the fact
> > that it could be missing, but it fails since the check in configure
> > tries to link with libgcc_s.so during the process (DOH!)
>
>
> I think the way to address this is to apply
> patches/glibc-2.3.4/make-install-lib-all.patch
> Then the lgcc_eh problems go away (assuming you
> have a recent crosstools).
I may have a proper patch to glibc that does not require any interaction
from the crosstools script and I am testing that right now. I will let
you know how it goes.

-Steve

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