Adding support for the Xtensa architecture in crosstool-NG

[Chris Zankel <chris at zankel dot net>]

Hi,

It would be great if you'd consider adding the patches to support the 
Xtensa architecture.

Because it's a configurable architecture, there's a little bit of 
tweaking required if someone wants to build a toolchain for a different 
processor configuration than the default one that comes with the 
toolchain. I have combined that logic into a single function, which each 
component (gcc, bintuils, gdb) must call if building for a non-default 
Xtensa configuration (i.e. when CT_ARCH_XTENSA_CUSTOM_OVERLAY_FILE is 
empty).

Please let me know if you have any questions or feedback.

Thanks,
-Chris

Attachment: xtensa_add_support.patch
Description: Text document

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