Clean up stack-coloring macros.
Clean up HAVE_CONFIG_H and STDC_HEADERS.
Remove unused file rtld-lowlevel.h.
Move generic smp.h to nptl/
Mention CVE-2014-4043 in NEWS
nscd: Remove unused typedef and variable.

The attached patch removed the unused ‘thread_info_t’ typedef and the
‘thread_info’ variable from nscd.c.  The former conflicts with a GNU Mach
typedef, and the latter conflicts with a GNU Mach function declaration:
<https://lists.gnu.org/archive/html/bug-hurd/2014-06/msg00101.html>.

Tested on x86_64-linux-gnu.
test-skeleton.c: Use stdout for error messages

At the moment the test skeleton uses a mixture of stdout and
stderr for error message output. Using stdout for all test output
keeps all output correctly ordered and properly redirected to the
output file. The suggestion to use stdout is also made on the wiki:

https://sourceware.org/glibc/wiki/Testing/Testsuite#Writing_a_test_case

ChangeLog:

2014-06-23  Will Newton  <will.newton@linaro.org>

	* test-skeleton.c (signal_handler): Use printf and %m
	rather than perror.  Use printf rather than fprintf to
	stderr.  Use puts rather than fputs to stderr.
	(main): Likewise.
Don't ignore too long lines in nss_files (BZ #17079)
elf/dl-lookup.c: Move STB_GNU_UNIQUE handling to a function

Move handling of STB_GNU_UNIQUE symbols to a separate function
from do_lookup_x in order to make the code more readable.

The new function gets inlined with gcc 4.8 on ARM and the
do_lookup_x code becomes a few bytes smaller.

ChangeLog:

2014-06-23  Will Newton  <will.newton@linaro.org>

	* elf/dl-lookup.c (do_lookup_unique): New function.
	(do_lookup_x): Move STB_GNU_UNIQUE handling code
	to a separate function.
elf/dl-lookup.c: Remove unnecessary static variable

undefined_msg is only used once contrary to the comment.

ChangeLog:

2014-06-23  Will Newton  <will.newton@linaro.org>

	* elf/dl-lookup.c (undefined_msg): Remove variable.
	(_dl_lookup_symbol_x): Replace undefined_msg with string
	literal.
elf/dl-lookup.c: Use __glibc_likely and __glibc_unlikely

Convert all uses of __builtin_expect to __glibc_likely and
__glibc_unlikely. Most of these are trivial boolean expressions
but a few were not. In particular the use of __builtin_expect in
the switch expression in do_lookup_x has been removed. Verified
that there are no code changes on x86_64 and ARM aside from line
numbers.

ChangeLog:

2014-06-23  Will Newton  <will.newton@linaro.org>

	* elf/dl-lookup.c: Use __glibc_unlikely and __glibc_likely
	rather than __builtin_expect.
PowerPC: sync hwcap.h capabilities

Linux commit dd58a092c4202f2bd490adab7285b3ff77f8e467 added the
PPC_FEATURE2_VEC_CRYPTO auvx capability to indicate whether to
hardware supports vector crypto hardware instructions.  This patch
adds its definition to powerpc hwcap bits.
Remove unused label
Update headers for Linux 3.15.

This patch updates glibc headers for changes / new definitions in
Linux 3.15.  In the course of my review I noticed that
IPV6_PMTUDISC_INTERFACE was absent from glibc despite the inclusion of
IP_PMTUDISC_INTERFACE; I added it along with IP_PMTUDISC_OMIT and
IPV6_PMTUDISC_OMIT.  I did not add FALLOC_FL_NO_HIDE_STALE given the
kernel header comment that it is reserved.

Tested x86_64.

	* sysdeps/unix/sysv/linux/bits/fcntl-linux.h [__USE_GNU]
	(FALLOC_FL_COLLAPSE_RANGE): New macro.
	[__USE_GNU] (FALLOC_FL_ZERO_RANGE): Likewise.
	* sysdeps/unix/sysv/linux/bits/in.h (IP_PMTUDISC_OMIT): Likewise.
	(IPV6_PMTUDISC_INTERFACE): Likewise.
	(IPV6_PMTUDISC_OMIT): Likewise.
SH: Consolidate nptl/ subdirectories under linux/.....
m68k: Consolidate nptl/ subdirectories under linux/...
MIPS: Move NPTL public headers to sysdeps/mips/nptl/.
Add generic HAVE_RM_CTX implementation

This patch adds a generic implementation of HAVE_RM_CTX using standard
fenv calls. As a result math functions using SET_RESTORE_ROUND* macros
do not suffer from a large slowdown on targets which do not implement
optimized libc_fe*_ctx inline functions. Most of the libc_fe* inline
functions are now unused and could be removed in the future (there are
a few math functions left which use a mixture of standard fenv calls
and libc_fe* inline functions - they could be updated to use
SET_RESTORE_ROUND or improved to avoid expensive fenv manipulations
across just a few FP instructions).

libc_feholdsetround*_noex_ctx is added to enable better optimization of
SET_RESTORE_ROUND_NOEX* implementations.

Performance measurements on ARM and x86 of sin() show significant gains
over the current default, fairly close to a highly optimized fenv_private:

                        ARM   x86
no fenv_private      : 100%  100%
generic HAVE_RM_CTX  : 250%  350%
fenv_private (CTX)   : 250%  450%

2014-06-23  Will Newton  <will.newton@linaro.org>
	    Wilco  <wdijkstr@arm.com>

	* sysdeps/generic/math_private.h: Add generic HAVE_RM_CTX
	implementation.  Include get-rounding-mode.h.
	[!HAVE_RM_CTX]: Define HAVE_RM_CTX to zero.
	[!libc_feholdsetround_noex_ctx]: Define
	libc_feholdsetround_noex_ctx.
	[!libc_feholdsetround_noexf_ctx]: Define
	libc_feholdsetround_noexf_ctx.
	[!libc_feholdsetround_noexl_ctx]: Define
	libc_feholdsetround_noexl_ctx.
	(libc_feholdsetround_ctx): New function.
	(libc_feresetround_ctx): New function.
	(libc_feholdsetround_noex_ctx): New function.
	(libc_feresetround_noex_ctx): New function.
powerpc: Consolidate nptl/ subdirectories under linux/....
Fix pow overflow in non-default rounding modes (bug 16315).

This patch fixes bug 16315, bad pow handling of overflow/underflow in
non-default rounding modes.  Tests of pow are duly converted to
ALL_RM_TEST to run all tests in all rounding modes.

There are two main issues here.  First, various implementations
compute a negative result by negating a positive result, but this
yields inappropriate overflow / underflow values for directed
rounding, so either overflow / underflow results need recomputing in
the correct sign, or the relevant overflowing / underflowing operation
needs to be made to have a result of the correct sign.  Second, the
dbl-64 implementation sets FE_TONEAREST internally; in the overflow /
underflow case, the result needs recomputing in the original rounding
mode.

Tested x86_64 and x86 and ulps updated accordingly.

	[BZ #16315]
	* sysdeps/i386/fpu/e_pow.S (__ieee754_pow): Ensure possibly
	overflowing or underflowing operations take place with sign of
	result.
	* sysdeps/i386/fpu/e_powf.S (__ieee754_powf): Likewise.
	* sysdeps/i386/fpu/e_powl.S (__ieee754_powl): Likewise.
	* sysdeps/ieee754/dbl-64/e_pow.c: Include <math.h>.
	(__ieee754_pow): Recompute overflowing and underflowing results in
	original rounding mode.
	* sysdeps/x86/fpu/powl_helper.c: Include <stdbool.h>.
	(__powl_helper): Allow negative argument X and scale negated value
	as needed.  Avoid passing value outside [-1, 1] to f2xm1.
	* sysdeps/x86_64/fpu/e_powl.S (__ieee754_powl): Ensure possibly
	overflowing or underflowing operations take place with sign of
	result.
	* sysdeps/x86_64/fpu/multiarch/e_pow.c [HAVE_FMA4_SUPPORT]:
	Include <math.h>.
	* math/auto-libm-test-in: Add more tests of pow.
	* math/auto-libm-test-out: Regenerated.
	* math/libm-test.inc (pow_test): Use ALL_RM_TEST.
	(pow_tonearest_test_data): Remove.
	(pow_test_tonearest): Likewise.
	(pow_towardzero_test_data): Likewise.
	(pow_test_towardzero): Likewise.
	(pow_downward_test_data): Likewise.
	(pow_test_downward): Likewise.
	(pow_upward_test_data): Likewise.
	(pow_test_upward): Likewise.
	(main): Don't call removed functions.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
	* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.