[ping] [patch] ARM support for long calls

[Christophe LYON]

Hi Nick,

Thanks again for your support. I am fine with the wording you have 
finally checked in.

I have found a few issues with my patch, and here is attached the 
corresponding fix.

Here is what is fixed now:
- in some tests, encoding was incorrect (ld-arm/farcall-thumb-arm, 
ld-arm/farcall-thumb-arm-blx, ld-arm/farcall-thumb-arm-blx-pic-veneer). 
This implied adding -W to gas flags in order not to be bothered by a 
"Failed to find real start of function" warning.

- in some tests, destination symbols were converted to STT_SECTION type 
by gas. However, in this case we can not tell if the destination symbol 
is arm or thumb, so we no longer generate a stub. This is checked by 
ld-arm/farcall-section. ld-arm/farcall-arm-arm.s, 
ld-arm/farcall-thumb-arm.s were fixed so that the destination is of 
function type.

- when stubs were necessary from several input sections, mapping symbols 
could be generated in the wrong place. This is checked with 
ld-arm/farcall-mix and ld-arm/farcall-mix2.

- tests exhibiting what --stub-group-size does have been added in 
ld-arm/farcall-group.

Are you OK with this?

Christophe.


On 21.05.2008 10:11, Nick Clifton wrote:
> Hi Dan, Hi Christophe,
> 
>   Right - I have applied my documentation patch, adjusted slightly to 
> incorporate the wording that Christophe proposed.  I have also applied 
> Christophe's patch to move the description of the --pic-veneer option 
> into the correct section of the linker manual.
> 
> Cheers
>   Nick
> 
> ld/ChangeLog
> 2008-05-21  Christophe Lyon  <christophe.lyon@st.com>
>         Nick Clifton  <nickc@redhat.com>
> 
>     * ld.texinfo (ARM): Document --stub-group-size=N option.
>     Move description of --pic-veneer option into the ARM section.
>     * NEWS: Mention the support for long function calls.
> 

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