Re: Add private syscalls to support NPTL

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On Wed, 28 Oct 2009, Maxim Kuvyrkov wrote:

Finn Thain wrote:

On Mon, 26 Oct 2009, Maxim Kuvyrkov wrote:

Maxim Kuvyrkov wrote:
...
Geert, in case there'll be further changes in the NPTL patch, 
would you like me submit full patch against original tree or only 
the incremental difference?
Ping.

Geert, did you have a chance to look over the patch from Oct. 2 
2009?

I've done a lot of testing since then and TLS/NPTL support on 
m68k/ColdFire is now stable enough to have no unexpected failures on 
binutils, gcc, g++, libstdc++ and glibc testsuites.

Nice work. I'm looking forward to eglibc patches so I can build a 
current toolchain.

We [CodeSourcery] have just updated all of our toolchains, and the 
GNU/Linux toolchain is based on EGLIBC 2.10 and has well tested TLS/NPTL 
support.  If you are targeting ColdFire you can simply download the 
toolchain at <http://www.codesourcery.com/sgpp/lite/coldfire>.

At the moment I'm more interested in the m68k toolchain, particularly for 
debian. But thanks for the link, I was unaware of the free download.

I suppose you can't really backport to eglibc 2.10 until the siginfo 
question is resolved. It appears from the list traffic that the 
consensus is to adopt the generic struct layout here. Is that the 
solution that you've used in testing?

I'm not sure if any parts of the m68k kernel port depend on the custom 
layout of siginfo, so I've only fixed the pieces which I'm sure are 
wrong.  I.e, I've been testing with this 
<http://marc.info/?l=linux-m68k&m=125447365311948&w=2> patch.

If so, can you send the patches you been testing?

All the patches are in the mailing lists.

The kernel patches are at

http://marc.info/?l=linux-m68k&m=125447760017098&w=2
http://marc.info/?l=linux-m68k&m=125447365311948&w=2

The [E]GLIBC patches are at

[M68K/ColdFire patch 1/n] Update sysdep.h
http://sourceware.org/ml/libc-ports/2009-08/msg00006.html

[M68K/ColdFire patch 2/n] Add CFI information to dl-trampoline.S
http://sourceware.org/ml/libc-ports/2009-08/msg00007.html

[M68K/ColdFire patch 3/n] Update jmpbuf-unwind.h
http://sourceware.org/ml/libc-ports/2009-08/msg00008.html

[M68K/ColdFire patch 4/n] Remove kernel headers
Update by hand to match your kernel

[M68K/ColdFire patch 5/n] Main NPTL patch
http://sourceware.org/ml/libc-ports/2009-10/msg00006.html
http://sourceware.org/ml/libc-ports/2009-10/msg00030.html

[M68K/ColdFire patch 6/n] Add TLS relocations to elf/elf.h
http://sourceware.org/ml/libc-ports/2009-08/msg00012.html
Should I post this one to glibc-alpha@ for the review?

[M68K/ColdFire patch 7/n] Handle libgcc_s.so.2
http://sourceware.org/bugzilla/show_bug.cgi?id=4457

Let me know if you find any particular problems with these patches.


That's a great help, thanks.

Finn
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