[PATCH v2] sparc/sparc64: use crtendS.o for default-pie executables [PR96190]

[Eric Botcazou]

> In --enable-default-pie mode compiler should switch from
> using crtend.o to crtendS.o. On sparc it is especially important
> because crtend.o contains PIC-unfriendly code.
> 
> We use GNU_USER_TARGET_ENDFILE_SPEC as a baseline spec to get
> crtendS.o instead of crtend.o in !no-pie mode.
> 
> gcc:
> 
> 2020-07-14  Sergei Trofimovich  <siarheit@google.com>
> 
> 	PR target/96190
> 	* config/sparc/linux.h: Extend GNU_USER_TARGET_ENDFILE_SPEC
> 	to get crtendS.o for !no-pie mode.
> 	* config/sparc/linux64.h: Ditto.

This should be:

	PR target/96190
	* config/sparc/linux.h (ENDFILE_SPEC): Use GNU_USER_TARGET_ENDFILE_SPEC
	to get crtendS.o for !no-pie mode.
	* config/sparc/linux64.h(ENDFILE_SPEC): Ditto.

OK for mainline with this change.  You can also put it on the 10 branch after 
the 10.1 release is out if this is deemed necessary.

-- 
Eric Botcazou