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Re: Support PIE on Solaris 12
- From: "H.J. Lu" <hjl dot tools at gmail dot com>
- To: Rainer Orth <ro at cebitec dot uni-bielefeld dot de>
- Cc: Alan Modra <amodra at gmail dot com>, Binutils <binutils at sourceware dot org>
- Date: Mon, 21 Sep 2015 07:41:45 -0700
- Subject: Re: Support PIE on Solaris 12
- Authentication-results: sourceware.org; auth=none
- References: <yddd1yb7fgm dot fsf at lokon dot CeBiTec dot Uni-Bielefeld dot DE> <CAMe9rOr8Y059NZ2D2uP2TLwyipzBrWDrNRtTDP7eqnYZKQdi7A at mail dot gmail dot com> <ydd1teijqjb dot fsf at lokon dot CeBiTec dot Uni-Bielefeld dot DE> <CAMe9rOrHK7vmy43j4+eoFjB4e_N89f_3oZXGTTAdGoLTOomTgA at mail dot gmail dot com> <ydd4mjdgpho dot fsf at lokon dot CeBiTec dot Uni-Bielefeld dot DE> <20150902125127 dot GV24814 at bubble dot grove dot modra dot org> <yddtwr2cxk0 dot fsf at lokon dot CeBiTec dot Uni-Bielefeld dot DE> <CAMe9rOrbYEoJS693SciwZsgk3SGbSnPSb-CowD+MeO2Dq-uh3A at mail dot gmail dot com> <yddvbb36g26 dot fsf at lokon dot CeBiTec dot Uni-Bielefeld dot DE>
On Mon, Sep 21, 2015 at 6:46 AM, Rainer Orth
<ro@cebitec.uni-bielefeld.de> wrote:
> "H.J. Lu" <hjl.tools@gmail.com> writes:
>
>> On Thu, Sep 10, 2015 at 4:40 AM, Rainer Orth
>> <ro@cebitec.uni-bielefeld.de> wrote:
>>> Alan Modra <amodra@gmail.com> writes:
>>>
>>>> On Wed, Sep 02, 2015 at 11:05:55AM +0200, Rainer Orth wrote:
>>>>> 2015-08-25 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
>>>>>
>>>>> ld:
>>>>> * emulparams/solaris2.sh (GENERATE_PIE_SCRIPT): Set to yes.
>>>>>
>>>>> * emultempl/elf32.em (ld_${EMULATION_NAME}_emulation): Allow
>>>>> overriding gld${EMULATION_NAME}_handle_option.
>>>>> * emultempl/solaris2.em: Include ldlex.h.
>>>>> (gld${EMULATION_NAME}_handle_option): Declare.
>>>>> (elf_solaris2_handle_option): New function.
>>>>> (LDEMUL_HANDLE_OPTION): Uset it.
>>>>>
>>>>> include/elf:
>>>>> * common.h (DF_1_STUB, DF_1_PIE): Define.
>>>>>
>>>>> binutils:
>>>>> * readelf.c (process_dynamic_section): Handle DF_1_STUB, DF_1_PIE.
>>>>
>>>> OK.
>>>
>>> How should we proceed with this patch? Keep setting DF_1_PIE
>>> Solaris-specific as in the version above you've already approved or set
>>> it everywhere as HJ suggested, using the ld part from
>>>
>>> https://sourceware.org/ml/binutils/2015-09/msg00035.html
>>>
>>> instead.
>>
>> We have set bits in DT_FLAGS_1 which ld supports. I don't see
>> DF_1_PIE is special.
>
> It's been more than a week since this mail: can I have either approval
> or rejection for generically setting DF_1_PIE so I can install either
> version of the patch?
>
Please just set DF_1_PIE unconditionally for PIE.
Thanks.
--
H.J.