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Re: RFC: Add --enable-static-pie to build static executables as PIE
On Tue, Jul 18, 2017 at 11:58 AM, H.J. Lu <hjl.tools@gmail.com> wrote:
> On Tue, Jul 18, 2017 at 8:21 AM, Szabolcs Nagy <szabolcs.nagy@arm.com> wrote:
>> On 18/07/17 14:48, Alan Modra wrote:
>>> On Tue, Jul 18, 2017 at 05:30:48AM -0700, H.J. Lu wrote:
>>>> On Mon, Jul 17, 2017 at 9:25 PM, Alan Modra <amodra@gmail.com> wrote:
>>>> Linker needs to support --no-dynamic-linker.
>>>
>>> Is there really much to be gained from PIEs that don't use ld.so
>>> versus those that do?
>>>
>>
>> in glibc ld.so in principle only works with one particular
>> version of glibc, you cannot move a static linked pie binary
>> to another system if it has ld.so dependency.
>>
>
> Please checkout hl/pie/static branch at
>
> https://sourceware.org/git/?p=glibc.git;a=shortlog;h=refs/heads/hl/pie/static
>
> It works surprising well on x86-64. The changes are relative minor and there
> are no regressions. The gcc driver only needs some minor changes to create
> static PIE.
>
> I am working on i386, mainly PIC vs SHARED.
>
I renamed my branch to hjl/pie/static. It works on i386 now.
--
H.J.