Support PIE on Solaris 12

[H.J. Lu]

On Wed, Sep 2, 2015 at 2:05 AM, Rainer Orth <ro@cebitec.uni-bielefeld.de> wrote:
> "H.J. Lu" <hjl.tools@gmail.com> writes:
>
>> On Tue, Sep 1, 2015 at 5:02 AM, Rainer Orth <ro@cebitec.uni-bielefeld.de> wrote:
>>> "H.J. Lu" <hjl.tools@gmail.com> writes:
>>>
>>>> @@ -868,6 +868,8 @@
>>>>  #define        DF_1_GLOBAUDIT  0x01000000
>>>>  #define        DF_1_SINGLETON  0x02000000
>>>>
>>>> +#define        DF_1_PIE        0x08000000
>>>>
>>>> You don't need a blank line before DF_1_PIE.  Should we always set
>>>> DF_1_PIE for PIE?
>>>
>>> I had it to mark the gap in the flags.  Solaris 11 (and 12) has
>>>
>>> #define DF_1_STUB       0x04000000      /* stub object */
>>
>> We should add DF_1_STUB.
>>
>>> between the two.  It's documented in the Linkers and Libraries Guide:
>>>
>>> http://docs.oracle.com/cd/E36784_01/html/E36857/chapter6-42444.html
>
> Fine with me.  Patch updated to define DF_1_STUB and print it in
> readelf.  Supporting creation of stub objects for real is beyond the
> scope of the current patch, I believe.
>
>         Rainer
>
>
> 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.

Should we set DF_1_PIE for Linux?


-- 
H.J.