Support PIE on Solaris 12

[H.J. Lu]

On Tue, Aug 25, 2015 at 4:52 AM, Rainer Orth
<ro@cebitec.uni-bielefeld.de> wrote:
> As mentioned in
>
>         https://gcc.gnu.org/ml/gcc-patches/2015-08/msg01389.html
>
> Solaris 12 will gain support for Position Independent Executables
> (PIE).  The following patch implements the changes to ld (and a minor
> readelf addition) to handle this.  Effectively it's only setting the new
> DF_1_PIE flag.
>
> The patch was tested with an early version of the new PIC CRTs, the PIE
> patch from the message above, and mainline gcc configured both without
> and with --enable-default-pie.
>
> Ok for mainline?
>
>         Rainer
>
> --
> -----------------------------------------------------------------------------
> Rainer Orth, Center for Biotechnology, Bielefeld University
>
>
> 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_PIE): Define.
>
>         binutils:
>         * readelf.c (process_dynamic_section): Handle DF_1_PIE.
>

@@ -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?


-- 
H.J.