PING: [PATCH] Add -static-pie to GCC driver to create static PIE

["H.J. Lu" <hjl dot tools at gmail dot com>]

On Mon, Aug 28, 2017 at 10:13 AM, H.J. Lu <hjl.tools@gmail.com> wrote:
> On Mon, Aug 28, 2017 at 9:10 AM, Joseph Myers <joseph@codesourcery.com> wrote:
>> On Tue, 8 Aug 2017, H.J. Lu wrote:
>>
>>> This patch adds -static-pie to GCC driver to create static PIE.  A static
>>> position independent executable (PIE) is similar to static executable,
>>> but can be loaded at any address without a dynamic linker.  All linker
>>> input files must be compiled with -fpie or -fPIE and linker must support
>>> --no-dynamic-linker to avoid linking with dynamic linker.  "-z text" is
>>> also needed to prevent dynamic relocations in read-only segments.
>>>
>>> OK for trunk?
>>
>> I think the documentation for various options needs updating to clarify
>> exactly what they mean.  (And potentially help text, which for driver
>> options is in gcc.c:display_help with the common.opt text being ignored in
>> that case.)
>
> Done.
>
>> -static is no longer just "prevents linking with the shared libraries" as
>> the documentation says, given it's also overriding (explicit or
>> configure-time default) -pie.  -pie is no longer just "Produce a position
>> independent executable", it's producing a *dynamically linked* PIE.
>
> Done.
>
>>> +@item -static-pie
>>> +@opindex static-pie
>>> +Produce a static position independent executable on targets that support
>>> +it.  A static position independent executable is similar to static
>>> +executable, but can be loaded at any address without a dynamic linker.
>>
>> "to a static executable".
>>
>
> Done.
>
> Here is the updated patch.   OK for trunk?
>
> Thanks.
>

PING.


-- 
H.J.