PowerPC: Fix vDSO missing ODP entries

This patch fixes the vDSO symbol used directed in IFUNC resolver where
they do not have an associated ODP entry leading to undefined behavior
in some cases. It adds an artificial OPD static entry to such cases
and set its TOC to non 0 to avoid triggering lazy resolutions.
Fix build on hurd

* string/strcoll_l.c: Include <sys/param.h> for MIN/MAX macros.
Fix off-by-one in nscd getservbyport call
benchtests: Add strtod benchmark
Fix vDSO l_name for GDB's: Can't read pathname for load map: Input/output error.
Put Bug # to the NEWS file for the previous vDSO l_name fix.
Fix sparc 64-bit GMP ifunc resolution in static builds.

	[BZ #16150]
	* sysdeps/sparc/sparc64/multiarch/add_n.S: Resolve to the correct generic
	symbol in the non-vis3 case in static builds.
	* sysdeps/sparc/sparc64/multiarch/addmul_1.S: Likewise.
	* sysdeps/sparc/sparc64/multiarch/mul_1.S: Likewise.
	* sysdeps/sparc/sparc64/multiarch/sub_n.S: Likewise.
	* sysdeps/sparc/sparc64/multiarch/submul_1.S: Likewise.
Handle NULL return from htab_find_slot()
Avoid passing NULL to DSO_FILENAME.
PowerPC: Fix __fe_mask_env export

This patch does not export __fe_mask_env anymore, only providing a
compatibility symbol. It fixes BZ#14143.
Fix strtod rounding of half the least subnormal (bug 16151).
Set arch_minimum_kernel to 3.4.0 for x32

x32 ABI support was added in Linux kernel 3.4.0.
2013-11-13  Steve Ellcey  <sellcey@mips.com>

	* benchtests/bench-timing.h: Include time.h.
PowerPC: Fix __fe_mask_env export

Change SHLIB_COMPAT calls to GLIBC_2_19 for __fe_nomask_env symbol.