[PATCH roland/arm] ARM: Clean up EABI-related configury

[Ramana Radhakrishnan]

On Fri, Jul 4, 2014 at 8:20 PM, Roland McGrath <roland@hack.frob.com> wrote:
> I think what you are both missing is that glibc already doesn't support the
> old ABI.  The only difference here is whether it insists that the tuple
> contain "gnueabi" or whether it simply insists that the compiler set
> __ARM_EABI__.

It's taken me a while to get back to this but better late than never.

The check for __ARM_EABI__ is going to be more robust and looks reasonable

After a chat with David Howells who maintains the cross gcc and cross
binutils packages in Fedora I've realized that the reason for my
confusion seems to be that the program prefix on Fedora is
arm-linux-gnu but the target is actually arm-linux-gnueabi :(. I don't
have a cross toolchain to hand to verify this myself but from the
output I've seen[1], this is probably the case.

I'm not sure if this is what you meant from your original post by :

Now that pre-EABI is no longer supported, new toolchains are starting to be
built using tuples arm-linux* rather than arm-linux*eabi*.  e.g. Fedora's
cross tools use arm-linux-gnu.

regards
Ramana

1.
$>arm-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/usr/bin/arm-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/arm-linux-gnueabi/4.9.0/lto-wrapper
Target: arm-linux-gnueabi