striking out at the eabi

[Khem Raj]

Michael K. Edwards said the following on 05/07/2006 07:43 PM:
> The "linux headers are too old" message is an artifact of the way that
> crosstool bootstraps linux headers into the first stage of the glibc
> preparation using the host's gcc.  There are changes in syscall
> numbering between the old ARM ABI and the EABI which only happen if
> __ARM_EABI__ is defined.  Your x86 host gcc of course doesn't define
> this symbol, so the glibc configure step errors out when it detects
> the old syscall numbering.
>
you need 2.6.16+ kernel headers to compile glibc 2.4 for ARM EABI
> The patch attached to "More crosstool-0.42-glibc-2.4-gcc-4.1.0-nptl"
> works around this by adding a "GLIBC_FAKE_CROSS_ARGS" parameter to
> crosstool.  The value of this parameter gets tacked onto commands that
> pretend that the host gcc is the target gcc; setting it to
> -D__ARM_EABI__ (as in my earm.dat) resolves the "old headers" problem.
>
> I would be interested in hearing what results you get with that patch,
> especially if you will be using binutils 2.16.92.  I am still working
> on kernel 2.6.16.11, having ported the RT/preempt patch to it; once I
> work through the rest of the arch/mach issues for my board, I may move
> on to 2.6.17.  Note, however, that apparently Linus has announced that
> 2.6.16 will be supported (i.e., security and critical-bug-fix patched)
> long-term, so it may be a good branch point for embedded developers.
>
> Cheers,
> - Michael
>
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