Re: [XenPPC] PHDR link failure testcase

[Segher Boessenkool <segher@xxxxxxxxxxxxxxxxxxx>]

> I believe the root cause for this is the fact that the .data.percpu
> section is becoming large.
Yeah, something like that.  If you don't have an explicit PHDRS
statement in your linker script, ld guesses, and it guesses wrong
in many (most) non-trivial examples.

> 1) Explicitly add 3 segmnets in the linker script and manually map
>    sections to segments.
Yep, that's the way to go.

> +PHDRS
> +{
> +  text  PT_LOAD FILEHDR PHDRS;
> +  data  PT_LOAD;
> +  extra PT_LOAD;
> +}
>  SECTIONS
>  {
>    /* Read-only sections, merged into text segment: */
>    PROVIDE (__executable_start = 0x10000000); . = 0x10000000 +  
> SIZEOF_HEADERS;
> -  .interp         : { *(.interp) }
> +  .interp         : { *(.interp) } :text
That's how it's done, looks good.  I haven't checked the details
though, look at the resulting image with readelf to check if
everything is exactly as you want it to be ;-)


Segher


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