Commit Graph

27701 Commits

Author SHA1 Message Date
Joseph Myers
4060283dec Fix x86/x86_64 expm1l spurious underflow exceptions (bug 16539).
This patch fixes bug 16539, spurious underflow exceptions from x86 /
x86-64 expm1l.  The problem is that the computation of a base-2
exponent with extra precision involves spurious underflows for
arguments that are small but not subnormal, so a check is added to
just return the argument in those cases.  (If the argument *is*
subnormal, underflowing is correct and the existing code will always
underflow, so it suffices to keep using the existing code in that
case; some expm1 implementations have a bug (bug 16353) with missing
underflow exceptions, but I don't think there's such a bug in this
particular version.)

Tested x86_64 and x86; no ulps updates needed.

(auto-libm-test-out diffs omitted below.)

	[BZ #16539]
	* sysdeps/i386/fpu/e_expl.S (IEEE754_EXPL) [USE_AS_EXPM1L]: Just
	return the argument for normal arguments with exponent below -64.
	* sysdeps/x86_64/fpu/e_expl.S (IEEE754_EXPL) [USE_AS_EXPM1L]:
	Likewise.
	* math/auto-libm-test-in: Add another test of expm1.
	* math/auto-libm-test-out: Regenerated.
2014-06-24 21:00:08 +00:00
Joseph Myers
e7dd3c8c1d Fix ldbl-128 erfl spurious underflows (bug 16287).
This patch fixes bug 16287, spurious underflows from ldbl-128 erfl
arising from it calling erfcl for arguments with absolute value at
least 1.0, although for large positive arguments erfcl correctly
underflows but erfl shouldn't.  The fix is simply to avoid calling
erfcl, and just return 1, for arguments above a cut-off large enough
that erfl correctly rounds to-nearest as 1 but not so large that erfcl
underflows.

Tested mips64.  Also tested x86_64 and x86 to confirm the new tests
(taken from the tests of erfc) don't cause any problems there; no ulps
updates needed.

	[BZ #16287]
	* sysdeps/ieee754/ldbl-128/s_erfl.c (__erfl): Return 1 without
	calling __erfcl for arguments at least 16.
	* math/auto-libm-test-in: Add more tests of erf.
	* math/auto-libm-test-out: Regenerated.
2014-06-24 20:56:56 +00:00
Joseph Myers
0ea5d373c7 Move architecture cases out of sysdeps/unix/sysv/linux/configure.ac.
Continuing the process of making non-ex-ports architectures follow the
preferred sysdeps practices followed by ex-ports architectures - that
is, putting things in architecture-specific sysdeps files rather than
having architecture-specific cases in architecture-independent files -
this patch moves architecture cases out of
sysdeps/unix/sysv/linux/configure.ac into (new or existing) configure
fragments for each architecture.  (In the case of the
arch_minimum_kernel setting for x32,
sysdeps/unix/sysv/linux/x86_64/x32/configure already has such a
setting so the setting in sysdeps/unix/sysv/linux/configure.ac was a
duplicate that could just be removed - though I haven't tested for
x32.)

Tested for x86_64 and x86 that the patch causes no changes to the
installed shared libraries or ldd (or any part of the installation
except for the parts that always change because the files contain
timestamps - nscd and static libraries).

	* sysdeps/unix/sysv/linux/configure.ac: Remove cases for
	individual architectures.
	* sysdeps/unix/sysv/linux/configure: Regenerated.
	* sysdeps/unix/sysv/linux/i386/configure.ac: New file.
	* sysdeps/unix/sysv/linux/i386/configure: New generated file.
	* sysdeps/unix/sysv/linux/powerpc/configure.ac
	(ldd_rewrite_script): Define variable.
	* sysdeps/unix/sysv/linux/powerpc/configure: Regenerated.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/configure.ac: New
	file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/configure: New
	generated file.
	* sysdeps/unix/sysv/linux/s390/configure.ac: New file.
	* sysdeps/unix/sysv/linux/s390/configure: New generated file.
	* sysdeps/unix/sysv/linux/sh/configure.ac: New file.
	* sysdeps/unix/sysv/linux/sh/configure: New generated file.
	* sysdeps/unix/sysv/linux/sparc/configure.ac: New file.
	* sysdeps/unix/sysv/linux/sparc/configure: New generated file.
	* sysdeps/unix/sysv/linux/x86_64/configure.ac: New file.
	* sysdeps/unix/sysv/linux/x86_64/configure: New generated file.
2014-06-24 20:53:03 +00:00
Siddhesh Poyarekar
2307e1261e Fix namespace violation in pthreadtypes.h (BZ #17084)
This was causing conformtest failures on i386.
2014-06-24 22:43:34 +05:30
Wilco
c0a4ed7799 Add bug 16918 to NEWS. 2014-06-24 15:40:29 +00:00
Marcus Shawcroft
56046ce637 Revert "Add bug 16918 to NEWS."
This reverts commit 222b787a6f.
2014-06-24 16:28:06 +01:00
Wilco
b8c005732e Optimize fesetenv
Improve fesetenv to use an optimized implementation similar to
feupdateenv.

2014-06-24  Wilco  <wdijkstr@arm.com>

	* sysdeps/arm/fesetenv.c (fesetenv): Optimize implementation.
2014-06-24 15:05:23 +00:00
Wilco
b5570d92d6 Add _FPU_MASK_RM and use it instead of FE_TOWARDZERO.
2014-06-24  Wilco  <wdijkstr@arm.com>

	* sysdeps/arm/fpu_control.h (_FPU_MASK_RM): Define.
	* sysdeps/arm/fenv_private.h (libc_fesetround_vfp)
	(libc_feholdexcept_setround_vfp) (libc_feholdsetround_vfp)
	(libc_feresetround_vfp) (libc_feholdsetround_vfp_ctx)
	(libc_feresetround_vfp_ctx): Use _FPU_MASK_RM.
	* sysdeps/arm/fesetround.c (fesetround): Use _FPU_MASK_RM.
	* sysdeps/arm/get-rounding-mode.h (get_rounding_mode):
	Use _FPU_MASK_RM.
2014-06-24 15:02:51 +00:00
Wilco
947bdca24d Remove an unused include.
2014-06-24  Wilco  <wdijkstr@arm.com>

	* sysdeps/arm/fsetexcptflg.c (fesetexceptflag): Remove unused include.
2014-06-24 15:00:01 +00:00
Wilco
00f669edb8 Cleanup fenv implementation
Remove some spaces before libm_hidden_def.

2014-06-24  Wilco  <wdijkstr@arm.com>

	* sysdeps/arm/feholdexcpt.c (feholdexcept): Remove space.
	* sysdeps/arm/fesetenv.c (fesetenv): Remove space.
	* sysdeps/arm/fesetround.c (fesetround): Remove space.
	* sysdeps/arm/fraiseexcpt.c (feraiseexcept): Remove space.
2014-06-24 14:57:32 +00:00
Wilco
222b787a6f Add bug 16918 to NEWS. 2014-06-24 14:48:05 +00:00
Wilco
db59bad394 Rewrite feupdateenv
This patch rewrites feupdateenv to improve performance by avoiding
unnecessary FPSCR reads/writes. It fixes bug 16918 by passing the
correct return value.

2014-06-24  Wilco  <wdijkstr@arm.com>

	[BZ #16918]
	* sysdeps/arm/feupdateenv.c (feupdateenv):
	Rewrite to reduce FPSCR accesses and fix return value.
2014-06-24 13:53:04 +00:00
Wilco
001f7b773c Speed up the ARM fenv implementation by avoiding unnecessary FPSCR
writes if the FPSCR remains unchanged.

2014-06-24  Wilco  <wdijkstr@arm.com>

	* sysdeps/arm/fclrexcpt.c (feclearexcept):
	Optimize to avoid unnecessary FPSCR writes.
	* sysdeps/arm/fedisblxcpt.c (fedisableexcept): Likewise.
	* sysdeps/arm/feenablxcpt.c (feenableexcept): Likewise.
	* sysdeps/arm/fsetexcptflg.c (fesetexceptflag): Likewise.
	* sysdeps/arm/setfpucw.c (__setfpucw): Likewise.
2014-06-24 12:04:27 +00:00
Wilco
4841e6a6c2 Use libc calls defined by fenv_private.h to implement several fenv functions
rather than duplicating functionality. To make this work for softfp builds,
ensure functions in fenv_private are not conditionally compiled.

2014-06-24  Wilco  <wdijkstr@arm.com>

	* sysdeps/arm/fegetround.c (fegetround): Call get_rounding_mode.
	* sysdeps/arm/feholdexcpt.c (feholdexcept): Call libc_feholdexcept_vfp.
	* sysdeps/arm/fesetround.c (fesetround): Call libc_fesetround_vfp.
	* sysdeps/arm/fgetexcptflg.c (fegetexceptflag):
	Call libc_fetestexcept_vfp.
	* sysdeps/arm/ftestexcept.c (fetestexcept): Call libc_fetestexcept_vfp.
	* sysdeps/arm/fenv_private.h: Move libc_*_vfp functions outside of
	__SOFTFP__ ifdef so that they can be built for softfp.
2014-06-24 11:13:08 +00:00
Siddhesh Poyarekar
08e5862f5f Fix build warning in pthread_rwlock_*
The first argument of elision_adapt and that of ELISION_*LOCK have
different signs since __elision_rwcount is signed char * and the
argument of elision_adapt is uint8_t *.  Modified elision_adapt to
accept signed char * instead of uint8_t *.
2014-06-24 16:12:43 +05:30
Siddhesh Poyarekar
0813022c79 Print offending diff when check-abi fails
The earlier version of check-abi would print a diff of the expected
ABI vs the built ABI when there was a difference.  Bring back this
behaviour.
2014-06-24 13:27:13 +05:30
Roland McGrath
aba8ef95b5 Add missing #include in get-rounding-mode.h 2014-06-23 14:07:59 -07:00
Roland McGrath
3fc7236a28 Remove an unused variable in fstatvfs. 2014-06-23 14:05:14 -07:00
Joseph Myers
4648909d56 Fix cosh spurious underflows from expm1 (bug 16354), inaccurate results near 0 (bug 17061).
This patch fixes bug 16354, spurious underflows from cosh when a tiny
argument is passed to expm1 and expm1 correctly underflows although
the final result of cosh should be 1.  As noted in that bug, some
cases are latent because of expm1 implementations not raising
underflow (bug 16353), but all the implementations are fixed
similarly.  They already contained checks for tiny arguments, but the
checks were too late to avoid underflow from expm1 (although they
would avoid underflow from subsequent squaring of the result of
expm1); they are moved before the expm1 calls.

The thresholds used for considering arguments tiny are not
particularly consistent in how they relate to the precision of the
floating-point format in question.  They are, however, all sufficient
to ensure that the round-to-nearest result of cosh is indeed 1 below
the threshold (although sometimes they are smaller than necessary).
But the previous logic did not return 1, but the previously computed 1
+ expm1(abs(x)) value.  And the thresholds in the ldbl-128 and
ldbl-128ibm code (0x1p-71L - I suspect 0x3f8b was intended in the code
instead of 0x3fb8 - and (roughly) 0x1p-55L) are not sufficient for
that value to be 1.  So by moving the test for tiny arguments, and
consequently returning 1 directly now the expm1 value hasn't been
computed by that point, this patch also fixes bug 17061, the (large
number of ulps) inaccuracy for small arguments in those
implementations.  Tests for that bug are duly added.

Tested x86_64 and x86 and ulps updated accordingly.  Also tested for
mips64 and powerpc32 to validate the ldbl-128 and ldbl-128ibm changes.

	[BZ #16354]
	[BZ #17061]
	* sysdeps/ieee754/dbl-64/e_cosh.c (__ieee754_cosh): Check for
	small arguments before calling __expm1.
	* sysdeps/ieee754/flt-32/e_coshf.c (__ieee754_coshf): Check for
	small arguments before calling __expm1f.
	* sysdeps/ieee754/ldbl-128/e_coshl.c (__ieee754_coshl): Check for
	small arguments before calling __expm1l.
	* sysdeps/ieee754/ldbl-128ibm/e_coshl.c (__ieee754_coshl):
	Likewise.
	* sysdeps/ieee754/ldbl-96/e_coshl.c (__ieee754_coshl): Likewise.
	* math/auto-libm-test-in: Add more cosh tests.  Do not allow
	spurious underflow for some cosh tests.
	* math/auto-libm-test-out: Regenerated.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
2014-06-23 20:20:10 +00:00
Joseph Myers
46a3d3c7d6 Set errno for y1 overflow (bug 17050).
This patch fixes bug 17050, missing errno setting for y1 overflow (for
small positive arguments).  An appropriate check is added for overflow
directly in the __ieee754_y1 implementation, similar to the check
present for yn (doing it there rather than in the wrapper also avoids
yn needing to repeat the check when called for order 1 or -1 and it
uses __ieee754_y1).

Tested x86_64 and x86; no ulps update needed.  Also tested for mips64
to verify the ldbl-128 fix (the ldbl-128ibm code just #includes the
ldbl-128 file).

	[BZ #17050]
	* sysdeps/ieee754/dbl-64/e_j1.c: Include <errno.h>.
	(__ieee754_y1): Set errno if return value overflows.
	* sysdeps/ieee754/flt-32/e_j1f.c: Include <errno.h>.
	(__ieee754_y1f): Set errno if return value overflows.
	* sysdeps/ieee754/ldbl-128/e_j1l.c: Include <errno.h>.
	(__ieee754_y1l): Set errno if return value overflows.
	* sysdeps/ieee754/ldbl-96/e_j1l.c: Include <errno.h>.
	(__ieee754_y1l): Set errno if return value overflows.
	* math/auto-libm-test-in: Add more tests of y0, y1 and yn.
	* math/auto-libm-test-out: Regenerated.
2014-06-23 20:17:13 +00:00
Joseph Myers
863893ec95 Test cpow in all rounding modes.
This patch enables testing of cpow in all rounding modes using
ALL_RM_TEST.  There were two reasons this was previously deferred:

* MPC has complicated rounding-mode-dependent rules for the signs of
  exact zero real or imaginary parts in the result of mpc_pow.  Annex
  G does not impose any such requirements and I don't think glibc
  should try to implement any particular logic here.  This patch adds
  support for gen-auto-libm-tests passing the IGNORE_ZERO_INF_SIGN
  flag to libm-test.inc.

* Error accumulations in some tests in non-default rounding modes
  exceed the maximum error permitted in libm-test.inc.  This patch
  marks the problem tests with xfail-rounding.  (It might be possible
  to reduce the accumulations a bit by using round-to-nearest when
  cpow calls clog, but I don't think there's much point; the
  implementation approach for cpow is fundamentally deficient, as
  discussed in the existing bug for cpow inaccuracy which can
  reasonably be considered to cover these less-inaccurate cases as
  well.  It's possible that the test "cpow 2 0 10 0" will also need
  xfail-rounding on some platforms.)

Tested x86_64 and x86 and ulps updated accordingly.

	* math/gen-auto-libm-tests.c: Document use of
	ignore-zero-inf-sign.
	(input_flag_type): Add value flag_ignore_zero_inf_sign.
	(input_flags): Add ignore-zero-inf-sign.
	(output_for_one_input_case): Handle flag_ignore_zero_inf_sign.
	* math/gen-libm-test.pl (generate_testfile): Handle
	ignore-zero-inf-sign.
	* math/auto-libm-test-in: Mark some cpow tests with
	ignore-zero-inf-sign and some with xfail-rounding.
	* math/auto-libm-test-out: Regenerated.
	* math/libm-test.inc (cpow_test): Use ALL_RM_TEST.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
	* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2014-06-23 20:15:14 +00:00
Joseph Myers
4da6db5188 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.
2014-06-23 20:12:33 +00:00
Roland McGrath
5686b236cc powerpc: Consolidate nptl/ subdirectories under linux/.... 2014-06-23 09:40:01 -07:00
Wilco Dijkstra
e6d90d675d 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.
2014-06-23 17:29:00 +01:00
Roland McGrath
88a4647493 MIPS: Move NPTL public headers to sysdeps/mips/nptl/. 2014-06-23 09:25:41 -07:00
Roland McGrath
15bed4728f m68k: Consolidate nptl/ subdirectories under linux/... 2014-06-23 09:24:18 -07:00
Roland McGrath
d42df55520 SH: Consolidate nptl/ subdirectories under linux/..... 2014-06-23 09:23:12 -07:00
Joseph Myers
76e5216e31 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.
2014-06-23 15:48:42 +00:00
Andreas Schwab
7a81cbcc39 Remove unused label 2014-06-23 17:15:37 +02:00
Adhemerval Zanella
db22400947 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.
2014-06-23 09:40:05 -05:00
Will Newton
cc7d044752 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.
2014-06-23 14:13:31 +01:00
Will Newton
d6d0622554 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.
2014-06-23 14:13:30 +01:00
Will Newton
f393b4aaed 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.
2014-06-23 14:13:30 +01:00
Andreas Schwab
ac60763eac Don't ignore too long lines in nss_files (BZ #17079) 2014-06-23 12:29:51 +02:00
Will Newton
c5c1335513 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.
2014-06-23 11:21:31 +01:00
Ludovic Courtès
bd3675f9a3 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.
2014-06-22 13:46:14 +02:00
Allan McRae
d03efb2f97 Mention CVE-2014-4043 in NEWS 2014-06-21 17:23:55 +10:00
Roland McGrath
dc9a54f800 Move generic smp.h to nptl/ 2014-06-20 20:22:44 -07:00
Roland McGrath
bd7022c44e Remove unused file rtld-lowlevel.h. 2014-06-20 20:17:28 -07:00
Roland McGrath
26ffd5e6c7 Clean up HAVE_CONFIG_H and STDC_HEADERS. 2014-06-20 20:04:47 -07:00
Roland McGrath
93a6d08204 Clean up stack-coloring macros. 2014-06-20 19:50:16 -07:00
Roland McGrath
bc4a86fa21 Move linux bits/ files out of nptl/. 2014-06-20 18:36:49 -07:00
Joseph Myers
2272ffc116 Remove ARM __ASSUME_SIGFRAME_V2.
This patch removes ARM __ASSUME_SIGFRAME_V2 now that the
2.6.18-and-later signal frame layout can be assumed, renaming the
affected functions accordingly now only one version of them is needed
in glibc.  (sigrestorer.S did not in fact include <kernel-features.h>
and it appears that, unlike other such cases, it didn't get the header
indirectly, so the v1 functions would have been compiled in even when
sigaction.c didn't reference them.)

(alpha and hppa also have architecture-specific __ASSUME_* macros that
should now be removed: __ASSUME_FDATASYNC and __ASSUME_LWS_CAS
respectively.  I don't have any plans to do anything on that myself.)

Tested on ARM.

	* sysdeps/unix/sysv/linux/arm/kernel-features.h
	(__ASSUME_SIGFRAME_V2): Remove macro.
	* sysdeps/unix/sysv/linux/arm/sigrestorer.S: Update comment.
	[!__ASSUME_SIGFRAME_V2]: Remove conditional code.
	(__default_sa_restorer_v2): Rename to __default_sa_restorer.
	(__default_rt_sa_restorer_v2): Rename to __default_rt_sa_restorer.
	* sysdeps/unix/sysv/linux/arm/sigaction.c (__default_sa_restorer):
	Declare as function.  Remove conditional macro definitions.
	(__default_rt_sa_restorer): Likewise.
	(__default_sa_restorer_v1): Remove declaration.
	(__default_sa_restorer_v2): Likewise.
	(__default_rt_sa_restorer_v1): Likewise.
	(__default_rt_sa_restorer_v2): Likewise.
	* sysdeps/unix/sysv/linux/arm/Versions (GLIBC_PRIVATE): Remove
	__default_sa_restorer_v1, __default_rt_sa_restorer_v1,
	__default_sa_restorer_v2 and __default_rt_sa_restorer_v2.
2014-06-21 00:58:56 +00:00
Roland McGrath
c4eff5625d Missing new file from last commit. 2014-06-20 17:27:16 -07:00
Roland McGrath
4b88139b6f Move remaining SPARC code out of nptl/. 2014-06-20 17:13:47 -07:00
Joseph Myers
9bc6103d04 Include <kernel-features.h> explicitly where required.
This patch makes files using __ASSUME_* macros include
<kernel-features.h> explicitly, rather than relying on some other
header (such as tls.h, lowlevellock.h or pthreadP.h) to include it
implicitly.  (I omitted cases where I've already posted or am testing
the patch that stops the file from needing __ASSUME_* at all.)  This
accords with the general principle of making source files include the
headers for anything they use, and also helps make it safe to remove
<kernel-features.h> includes from any file that doesn't use
__ASSUME_* (some of those may be stray includes left behind after
increasing the minimum kernel version, others may never have been
needed or may have become obsolete after some other change).

Tested x86_64 that the disassembly of installed shared libraries is
unchanged by this patch.

	* nptl/pthread_cond_wait.c: Include <kernel-features.h>.
	* nptl/pthread_rwlock_timedrdlock.c: Likewise.
	* nptl/pthread_rwlock_timedwrlock.c: Likewise.
	* nptl/sysdeps/unix/sysv/linux/lowlevelrobustlock.c: Likewise.
	* nscd/nscd.c: Likewise.
	* sysdeps/i386/nptl/tcb-offsets.sym: Likewise.
	* sysdeps/powerpc/nptl/tcb-offsets.sym: Likewise.
	* sysdeps/sh/nptl/tcb-offsets.sym: Likewise.
	* sysdeps/x86_64/nptl/tcb-offsets.sym: Likewise.
2014-06-20 23:24:00 +00:00
Joseph Myers
d710902750 Remove __ASSUME_SOCK_CLOEXEC / SOCK_CLOEXEC conditionals in Linux-specific code.
This patch removes conditionals on __ASSUME_SOCK_CLOEXEC, and on
SOCK_CLOEXEC being defined, in Linux-specific code, now that all
supported Linux kernel versions can be assumed to have this
functionality.  (The macro is also used in OS-independent code and is
not defined for Hurd.)

Tested x86_64 that the disassembly of installed shared libraries is
unchanged by this patch.

	* nptl/sysdeps/unix/sysv/linux/mq_notify.c: Do not include
	<kernel-features.h>.
	(init_mq_netlink): Remove conditional have_sock_cloexec
	definitions.  Remove code conditional on have_sock_cloexec < 0.
	(init_mq_netlink) [!SOCK_CLOEXEC]: Remove conditional code.
	(init_mq_netlink) [!__ASSUME_SOCK_CLOEXEC]: Likewise.
	* sysdeps/unix/sysv/linux/opensock.c: Do not include
	<kernel-features.h>.
	(__opensock) [SOCK_CLOEXEC]: Make code unconditional.
	(__opensock) [!__ASSUME_SOCK_CLOEXEC]: Remove conditional code.
2014-06-20 23:22:08 +00:00
H.J. Lu
d92d8f8a42 Add ifunc tests for x86_64 memset_chk and memset
This patch adds ifunc tests for x86_64 memset_chk and memset.  It also
defines HAS_AVX2 with AVX2_Usable since AVX2 may not be usable even if
processor has AVX2.

	* sysdeps/x86_64/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list):
	Add tests for memset_chk and memset.

	* sysdeps/x86_64/multiarch/init-arch.h (HAS_AVX2): Defined
	with AVX2_Usable.
2014-06-20 14:52:29 -07:00
Maciej W. Rozycki
257ce7127e [BZ #16046] dl_iterate_phdr static executable test 2014-06-20 21:52:53 +01:00
Maciej W. Rozycki
4e6d234712 stdlib/tst-qsort2.c: Fix off-by-one argc interpretation error
This fixes an off-by-one argc interpretation error (argv[0] is included
in the count) in stdlib/tst-qsort2.c causing a segfault if the program
is called with one command-line argument only (argv[2] is NULL in that
case).
2014-06-20 21:29:33 +01:00