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Since the default now for x86 target is arch=i486 this is need for uclibc to build
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(patches derived from busybox mailing list)
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http://busybox.net/lists/uclibc-cvs/2006-January/008903.html
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- rather than build nslu2-kernel or nas100d-kernel slugos-image now
builds ixp4xx-kernel, the generic kernel. ixp4xx is now used as the
normal MACHINE override, even though MACHINE itself is still set to
nslu2 or nas100d (or ixp4xx).
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- the file is actually used in all NSLU2 uclibc builds, even though
- it contains distro settings, therefore to avoid replicating it it
- is made the default for all NSLU2
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- Change uclibc 0.9.28 ucslugc builds (only) to use the new mechanism
- to select ucslugc arm and armeb config
- There is no change to any build config (including ucslugc), just a
- change in mechanism.
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This, together with the fixes in gcc and binutils, allows a system to
be build with thumb libgcc and libuClibc (etc). ucslugc is changed to
release 2 and to use thumb compilation of these modules.
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STT_ARM_TFUNC handling was broken in uclibc because it is an ARM specific
hack and uclibc code did not have support for it. Added the support in a
way which I hope will be acceptable to uclibc and which should remain
compatible with forthcoming binutils changes. ARM Thumb code is fully
working with this commit with the possible exception of uclibc/gcc itself
(not yet tested).
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Some of the thumb patches had already been pushed into the uclibc release,
this commit adds corrected/updated versions of most of the ones which had
not been accepted. The controversial 'change the ldso symbol resolver'
patch is not in this set - it will be re-worked to match the changes being
made in binutils for the same problem.
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The config now sets the processor option to XScale, correct for ucslugc
(which is NSLU2)
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IMPORTANT: the uClibc dynamic loader has changed in this release, the
startup and finalisation is changed and this requires applications to
be rebuilt with the new uclibc. If this is not done the applications
will not work correctly.
uclibc 0.9.28 contains all the non-thumb (ARM instruction set) patches
OE applied to 0.9.27, this check in includes minimal updates to the
uClibc.config file for each machine architecture, maintainers of
individual architectures may want to make more changes to take advantage
of new features in uClibc.
It is possible to configure uClibc to offer backward compatibility with
the 0.9.27 dynamic loader, if this is done it will still be necessary to
have both uClibc DLLs (0.9.27 and 0.9.28) on the system for un-recompiled
applications to build. This commit does *not* do this.
With this commit the uclibc build is running the 'fix_includes.sh' script
to verify the cross build header files. This seems to function correctly
however it is possible that some distros may have incorrect header files
(particular if uclibc-initial is built) - in that case it will be
necessary to re-introduce the nokernelheader.patch
If it is necessary to continue to use 0.9.27 in the presence of this
upgrade set PREFERRED_VERSION_uclibc in the DISTRO .conf file.
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