2013-11-15  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

	Backport from mainline r204808:

	2013-11-14  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
		    Alan Modra  <amodra@gmail.com>

	* config/rs6000/linux-unwind.h (TOC_SAVE_SLOT): Define.
	(frob_update_context): Use it.

	2013-11-14  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
		    Alan Modra  <amodra@gmail.com>

	* config/rs6000/tramp.S [__powerpc64__ && _CALL_ELF == 2]:
	(trampoline_initial): Provide ELFv2 variant.
	(__trampoline_setup): Likewise.

	* config/rs6000/linux-unwind.h (frob_update_context): Do not
	check for AIX indirect function call sequence if _CALL_ELF == 2.

	2013-11-14  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
		    Alan Modra  <amodra@gmail.com>

	* config/rs6000/linux-unwind.h (get_regs): Do not support
	old kernel versions if _CALL_ELF == 2.
	(frob_update_context): Do not support PLT stub variants only
	generated by old linkers if _CALL_ELF == 2.

2013-11-15  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

	Backport from mainline r204800:

	2013-11-14  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
		    Alan Modra  <amodra@gmail.com>

	* config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Correct
	location of CR save area for 64-bit little-endian systems.