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[PATCH] gold: -Trodata-segment and fix -Ttext-segment for isolate_execinstr targets

Cary Coutant ccoutant@google.com
Fri Jul 19 22:59:00 GMT 2013 
> gold/
> 2013-07-19  Roland McGrath  <mcgrathr@google.com>
>
>         * options.h (General_options): Add -Trodata-segment option.
>         * parameters.cc (Parameters::check_rodata_segment): New function.
>         (Parameters::set_target_once): Call it.
>         * parameters.h (Parameters): Declare it (private member function).
>         * layout.cc (load_seg_unusable_for_headers): New function, broken
>         out of Layout::relaxation_loop_body.  If TARGET->isolate_execinstr()
>         then validate rodata segment rather than text segment.
>         (relaxation_loop_body): Call that.
>         (is_text_segment): New function.  Don't admit a non-executable
>         segment if TARGET->isolate_execinstr().
>         (set_segment_offsets): Call it.  Honor -Trodata-segment option.

This is OK. Thanks!

-cary
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