[PATCH][M68K] Binutils support for TLS

[Maxim Kuvyrkov]

Hello,

The attached patch adds TLS support for M68K/ColdFire.

Support for TLS relocations is closely related to handling of GOT and 
its relocations, so most of the patch is dedicated to partial rewrite of 
multi-GOT support.

This work is well tested taking into consideration lack of linux kernel 
support; it does not cause any regressions in code that doesn't use TLS 
relocations.  Also, for what it worth, this patch can handle 
cross-compilation of GCC and GLIBC [provided that GCC and GLIBC have 
corresponding TLS/NPTL patches applied].

For background reading on TLS/NPTL ABI for m68k and ColdFire see 
http://lists.debian.org/debian-68k/2007/11/msg00071.html .

GCC TLS and GLIBC NPTL ports will follow shortly.

I'd like to thank my colleagues at CodeSourcery, especially Daniel 
Jacobowitz and Joseph Myers, for helping me with the entire 
M68K/ColdFire TLS/NPTL port.

OK for HEAD?

Thanks,

--
Maxim K.
CodeSourcery

PS. The patch also has a completely irrelevant one-line fix for the 
linker testsuite test 'merge isa-a isa-a:no-div"; see hunk for m68k.exp.
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