Commit Graph

8717 Commits

Author SHA1 Message Date
Marcus Shawcroft
a9ea2e0cbe [AArch64] Regenerate libm-test-ulps. 2014-04-16 23:08:51 +01:00
Igor Zamyatin
ea8ba7cd14 Save/restore bound registers for _dl_runtime_profile
This patch saves and restores bound registers in x86-64 PLT for
ld.so profile and LD_AUDIT:

	* sysdeps/x86_64/bits/link.h (La_x86_64_regs): Add lr_bnd.
	(La_x86_64_retval): Add lrv_bnd0 and lrv_bnd1.
	* sysdeps/x86_64/dl-trampoline.S (_dl_runtime_profile): Save
	Intel MPX bound registers before _dl_profile_fixup.
	* sysdeps/x86_64/dl-trampoline.h: Restore Intel MPX bound
	registers after _dl_profile_fixup.  Save and restore bound
	registers bnd0/bnd1 when calling _dl_call_pltexit.
	* sysdeps/x86_64/link-defines.sym (BND_SIZE): New.
	(LR_BND_OFFSET): Likewise.
	(LRV_BND0_OFFSET): Likewise.
	(LRV_BND1_OFFSET): Likewise.
2014-04-16 14:46:49 -07:00
Samuel Thibault
3c799e9131 hurd: Add i386 fields to TLS structure
* sysdeps/mach/hurd/i386/tls.h (tcbhead_t): Add multiple_threads,
	sysinfo, stack_guard, pointer_guard, gscope_flag, private_futex,
	__private_tm, __private_ss fields.
2014-04-16 23:45:36 +02:00
Samuel Thibault
9f2a4fbc3c hurd: Move dtv, dtv_t, tcbhead_t declaration to per-arch file. 2014-04-16 23:43:28 +02:00
Samuel Thibault
fd15a59b20 hurd: Do not allow unmapping address 0
* sysdeps/mach/munmap.c (__munmap): Return EINVAL if `addr' is 0.
2014-04-16 23:16:15 +02:00
Stefan Liebler
f19dfa0afd S/390: Regenerate ULPs 2014-04-16 13:04:34 +02:00
Stefan Liebler
4fa8bc3b35 [BZ #14770] S/390: Require Binutils >= 2.24 for target S/390. 2014-04-16 13:04:33 +02:00
Stefan Liebler
8ea587db2b [BZ #16824] Fix failing y1 due to too large ulps in downward/upward rounding mode. 2014-04-16 13:03:46 +02:00
Alan Modra
aa5f0ff11a Correct IBM long double frexpl.
Besides fixing the bugzilla, this also fixes corner-cases where the high
and low double differ greatly in magnitude, and handles a denormal
input without resorting to a fp rescale.

	[BZ #16740]
	[BZ #16619]
	* sysdeps/ieee754/ldbl-128ibm/s_frexpl.c (__frexpl): Rewrite.
	* math/libm-test.inc (frexp_test_data): Add tests.
2014-04-16 19:33:32 +09:30
David S. Miller
809bd45fa9 Regenerate sparc ULPs.
* sysdeps/sparc/fpu/libm-test-ulps: Update.
2014-04-13 18:27:19 -07:00
Torvald Riegel
36875b06e0 Fixed and unified pthread_once.
[BZ #15215] This unifies various pthread_once architecture-specific
implementations which were using the same algorithm with slightly different
implementations.  It also adds missing memory barriers that are required for
correctness.
2014-04-11 15:54:19 +02:00
Stefan Liebler
579db35a06 S/390: Unify 31 and 64 bit configure.ac 2014-04-11 13:14:35 +02:00
Igor Zamyatin
a4c75cfd56 Save/restore bound registers in _dl_runtime_resolve
This patch saves and restores bound registers in symbol lookup for x86-64:

1. Branches without BND prefix clear bound registers.
2. x86-64 pass bounds in bound registers as specified in MPX psABI
extension on hjl/mpx/master branch at

https://github.com/hjl-tools/x86-64-psABI
https://groups.google.com/forum/#!topic/x86-64-abi/KFsB0XTgWYc

Binutils has been updated to create an alternate PLT to add BND prefix
when branching to ld.so.

	* config.h.in (HAVE_MPX_SUPPORT): New #undef.
	* sysdeps/x86_64/configure.ac: Set HAVE_MPX_SUPPORT.
	* sysdeps/x86_64/configure: Regenerated.
	* sysdeps/x86_64/dl-trampoline.S (REGISTER_SAVE_AREA): New
	macro.
	(REGISTER_SAVE_RAX): Likewise.
	(REGISTER_SAVE_RCX): Likewise.
	(REGISTER_SAVE_RDX): Likewise.
	(REGISTER_SAVE_RSI): Likewise.
	(REGISTER_SAVE_RDI): Likewise.
	(REGISTER_SAVE_R8): Likewise.
	(REGISTER_SAVE_R9): Likewise.
	(REGISTER_SAVE_BND0): Likewise.
	(REGISTER_SAVE_BND1): Likewise.
	(REGISTER_SAVE_BND2): Likewise.
	(_dl_runtime_resolve): Use them.  Save and restore Intel MPX
	bound registers when calling _dl_fixup.
2014-04-09 15:38:09 -07:00
Peter TB Brett
a88ddc902b Use statvfs64() for pathconf(_PC_NAME_MAX).
pathconf(_PC_NAME_MAX) was implemented on top of statfs().  The 32bit
version therefore fails EOVERFLOW if the filesystem blockcount is
sufficiently large.

Most pathconf() queries use statvfs64(), which avoids this issue.  This
patch modifies pathconf(_PC_NAME_MAX) to do likewise.
2014-04-09 20:09:56 +02:00
Adhemerval Zanella
01f8eac224 Move __PTHREAD_SPINS definition to architecture specific header
This patch moves the __PTHREAD_SPINS definition to arch specific header
since pthread_mutex_t layout is also arch specific.  This leads to no
need to defining __PTHREAD_MUTEX_HAVE_ELISION and thus removing of the
undefined compiler warning.
2014-04-09 06:41:44 -05:00
Adhemerval Zanella
de21c33c06 PowerPC: Fix --disable-multi-arch builds
This patch fixes some powerpc32 and powerpc64 builds with
--disable-multi-arch option along with different --with-cpu=powerN.
It cleanups the Implies directories by removing the multiarch
folder for non multiarch config and also fixing two assembly
implementations: powerpc64/power7/strncat.S that is calling the
wrong strlen; and power8/fpu/s_isnan.S that misses the hidden_def and
weak_alias directives.
2014-04-09 06:22:53 -05:00
Adhemerval Zanella
7ffa942302 PowerPC: define _CALL_ELF if compiler does not
This patch makes the configure adds -D_CALL_ELF=1 when compiler does
not define _CALL_ELF (versions before powerpc64le support).  It cleans
up compiler warnings on old compiler where _CALL_ELF is not defined
on powerpc64(be) builds.

It does by add a new config.make variable for configure-deduced
CPPFLAGS and accumulate into that (confix-extra-cppflags).  It also
generalizes libc_extra_cflags so it accumulates in sysdeps configure
fragmenets.
2014-04-06 16:48:08 -05:00
Adhemerval Zanella
8bd70862e1 PowerPC: Fix nearbyint/nearbyintf result for FE_DOWNWARD
This patch fixes the powerpc32 optimized nearbyint/nearbyintf bogus
results for FE_DOWNWARD rounding mode.  This is due wrong instructions
sequence used in the rounding calculation (two subtractions instead of
adition and a subtraction).

Fixes BZ#16815.
2014-04-06 14:58:05 -05:00
Chris Metcalf
d42f3448a7 tile: Fix cut-and-paste bug in commit fcccd5128. 2014-04-04 15:03:47 -04:00
Roland McGrath
fcccd51286 Factor mmap/munmap of PT_LOAD segments out of _dl_map_object_from_fd et al. 2014-04-03 10:47:14 -07:00
Joseph Myers
a84e78c8b3 Fix catan, catanh, __ieee754_logf in round-downward mode (bug 16799, bug 16800).
This patch fixes incorrect results from catan and catanh of certain
special inputs in round-downward mode (bug 16799), and incorrect
results of __ieee754_logf (+/-0) in round-downward mode (bug 16800)
that show up through catan/catanh when tested in all rounding modes,
but not directly in the testing for logf because the bug gets hidden
by the wrappers.

Both bugs involve a zero that should be +0 being -0 instead: one
computed as (1-x)*(1+x) in the catan/catanh case, and one as (x-x) in
the logf case.  The fixes ensure positive zero is used.  Testing of
catan and catanh in all rounding modes is duly enabled.

I expect there are various other bugs in special cases in __ieee754_*
functions that are normally hidden by the wrappers but would show up
for testing with -lieee (or in future with -fno-math-errno if we
replace -lieee and _LIB_VERSION with compile-time redirection to new
*_noerrno symbol names).

Tested x86_64 and x86 and ulps updated accordingly.

	[BZ #16799]
	[BZ #16800]
	* math/s_catan.c (__catan): Avoid passing -0 denominator to atan2
	with 0 numerator.
	* math/s_catanf.c (__catanf): Likewise.
	* math/s_catanh.c (__catanh): Likewise.
	* math/s_catanhf.c (__catanhf): Likewise.
	* math/s_catanhl.c (__catanhl): Likewise.
	* math/s_catanl.c (__catanl): Likewise.
	* sysdeps/ieee754/flt-32/e_logf.c (__ieee754_logf): Always divide
	by positive zero when computing -Inf result.
	* math/libm-test.inc (catan_test): Use ALL_RM_TEST.
	(catanh_test): Likewise.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
	* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2014-04-02 17:41:02 +00:00
Joseph Myers
6f05bafeba Fix clog / clog10 sign of zero result in round-downward mode (bug 16789).
This patch fixes bug 16789, incorrect sign of (real part) zero result
from clog and clog10 in round-downward mode, arising from that real
part being computed as 0 - 0.  To ensure that an underflow exception
occurred, the code used an underflowing value (the next term in the
series for log1p) in arithmetic computing the real part of the result,
yielding the problematic 0 - 0 computation in some cases even when the
mathematical result would be small but positive.  The patch changes
this code to use the math_force_eval approach to ensuring that an
underflowing computation actually occurs.  Tests of clog and clog10
are enabled in all rounding modes.

Tested x86_64 and x86 and ulps updated accordingly.

	[BZ #16789]
	* math/s_clog.c (__clog): Use math_force_eval to ensure underflow
	instead of using underflowing value in computing result.
	* math/s_clog10.c (__clog10): Likewise.
	* math/s_clog10f.c (__clog10f): Likewise.
	* math/s_clog10l.c (__clog10l): Likewise.
	* math/s_clogf.c (__clogf): Likewise.
	* math/s_clogl.c (__clogl): Likewise.
	* math/libm-test.inc (clog_test): Use ALL_RM_TEST.
	(clog10_test): Likewise.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
	* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2014-04-02 13:10:19 +00:00
Alan Modra
b0abbc2103 Correct IBM long double nextafterl.
Fix for values near a power of two, and some tidies.

	[BZ #16739]
	* sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c (__nextafterl): Correct
	output when value is near a power of two.  Use int64_t for lx and
	remove casts.  Use decimal rather than hex exponent constants.
	Don't use long double multiplication when double will suffice.
	* math/libm-test.inc (nextafter_test_data): Add tests.
	* NEWS: Add 16739 and 16786 to bug list.
2014-04-02 13:46:19 +10:30
Alan Modra
af6b17973c Correct prefetch hint in power7 memrchr.
Typo fix.

	* sysdeps/powerpc/powerpc64/power7/memrchr.S: Correct stream hint.
2014-04-02 13:42:27 +10:30
Alan Modra
483818d768 Fix reference to toc symbol.
https://sourceware.org/ml/binutils/2014-03/msg00033.html removes the
"magic" treatment of symbols defined in a .toc section.

	* sysdeps/powerpc/powerpc64/start.S: Add @toc to toc symbol reference.
2014-04-02 13:40:21 +10:30
Alan Modra
c859b32e9d Fix s_copysign stack temp for PowerPC64 ELFv2
[BZ #16786]
	* sysdeps/powerpc/powerpc64/fpu/s_copysign.S: Don't trash stack.
2014-04-01 14:10:22 +10:30
Adhemerval Zanella
757d9dd5c3 PowerPC: Fix little endian enconding for mfvsrd
This patch fixes the MFVSRD_R3_V1 macro that encodes 'mfvsrd  r3,vs1'
(to support old binutils) for little endian.
2014-03-31 08:00:38 -05:00
Joseph Myers
47c5adebd2 Correct robust mutex / PI futex kernel assumptions (bug 9894).
This patch continues fixing __ASSUME_* issues in preparation for
moving to a 2.6.32 minimum kernel version by addressing assumptions on
robust mutex and PI futex support availability.  Those assumptions are
bug 9894, but to be clear this patch does not address all the issues
from that bug about wrong version assumptions, only those still
applicable for --enable-kernel=2.6.32 or later (with the expectation
that the move to that minimum kernel will obsolete the other parts of
the bug).  The patch is independent of
<https://sourceware.org/ml/libc-alpha/2014-03/msg00585.html>, my other
pending-review patch preparing for the kernel version change; the two
together complete all the changes I believe are needed in preparation
regarding any macro in sysdeps/unix/sysv/linux/kernel-features.h that
would be affected by such a change.  (I have not checked the
correctness of macros whose conditions are unaffected by such a
change, or macros only defined in other kernel-features.h files.)

As discussed in that bug, robust mutexes and PI futexes need
futex_atomic_cmpxchg_inatomic to be implemented, in addition to
certain syscalls needed for robust mutexes (and
architecture-independent kernel pieces for all the features in
question).  That is, as I understand it, they need
futex_atomic_cmpxchg_inatomic to *work* (not return an ENOSYS error).

The issues identified in my analysis relate to ARM, M68K, MicroBlaze,
MIPS and SPARC.

On ARM, whether futex_atomic_cmpxchg_inatomic works depends on the
kernel configuration.  As of 3.13, the condition for *not* working is
CONFIG_CPU_USE_DOMAINS && CONFIG_SMP.  As of 2.6.32 it was simply
CONFIG_SMP that meant the feature was not implemented.  I don't know
if there are any circumstances in which we can say "we can assume a
userspace glibc binary built with these options will never run on a
kernel with the problematic configuration", but at least for now I'm
just undefining the relevant __ASSUME_* macros for ARM.

On M68K, two of the three macros are undefined for kernels before
3.10, but as far as I can see __ASSUME_FUTEX_LOCK_PI is in the same
group needing futex_atomic_cmpxchg_inatomic support and so should be
undefined as well.

On MicroBlaze the required support was added in 2.6.33.

On MIPS, the support depends on cpu_has_llsc in the kernel - that is,
actual hardware LL/SC support (GCC and glibc for MIPS GNU/Linux rely
on the instructions being supported in some way, but it may be kernel
emulation; futex_atomic_cmpxchg_inatomic doesn't work with that
emulation).  The same condition as in GCC for indicating LL/SC support
may not be available is used for undefining the macros in glibc,
__mips == 1 || defined _MIPS_ARCH_R5900.  (Maybe we could in fact
desupport MIPS processors without the hardware support in glibc.)

On SPARC, 32-bit kernels don't support futex_atomic_cmpxchg_inatomic;
__arch64__ || __sparc_v9__ is used as the condition for binaries that
won't run on 32-bit kernels.

This patch is not tested beyond the sanity check of an x86_64 build.

	[BZ #9894]
	* sysdeps/unix/sysv/linux/kernel-features.h
	[__sparc__ && !__arch64__ && !__sparc_v9__]
	(__ASSUME_SET_ROBUST_LIST): Do not define.
	[__sparc__ && !__arch64__ && !__sparc_v9__]
	(__ASSUME_FUTEX_LOCK_PI): Likewise.
	[__sparc__ && !__arch64__ && !__sparc_v9__] (__ASSUME_REQUEUE_PI):
	Likewise.
	* sysdeps/unix/sysv/linux/arm/kernel-features.h
	(__ASSUME_FUTEX_LOCK_PI): Undefine.
	(__ASSUME_REQUEUE_PI): Likewise.
	(__ASSUME_SET_ROBUST_LIST): Likewise.
	* sysdeps/unix/sysv/linux/m68k/kernel-features.h
	[__LINUX_KERNEL_VERSION < 0x030a00] (__ASSUME_FUTEX_LOCK_PI):
	Undefine.
	* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
	[__LINUX_KERNEL_VERSION < 0x020621] (__ASSUME_FUTEX_LOCK_PI):
	Likewise.
	[__LINUX_KERNEL_VERSION < 0x020621] (__ASSUME_REQUEUE_PI):
	Likewise.
	[__LINUX_KERNEL_VERSION < 0x020621] (__ASSUME_SET_ROBUST_LIST):
	Likewise.
	* sysdeps/unix/sysv/linux/mips/kernel-features.h
	[__mips == 1 || _MIPS_ARCH_R5900] (__ASSUME_FUTEX_LOCK_PI):
	Undefine.
	[__mips == 1 || _MIPS_ARCH_R5900] (__ASSUME_REQUEUE_PI): Likewise.
	[__mips == 1 || _MIPS_ARCH_R5900] (__ASSUME_SET_ROBUST_LIST):
	Likewise.
2014-03-31 12:55:18 +00:00
Joseph Myers
d7a68734f7 Fix futimesat for older MicroBlaze kernels (bug 16648).
Continuing the fixes for __ASSUME_* issues in preparation for moving
to a 2.6.32 minimum kernel version, this *untested* patch fixes bug
16648, the definition of __ASSUME_ATFCTS meaning that the futimesat
syscall is assumed for all MicroBlaze kernels despite not being
present until 2.6.33.

__ASSUME_ATFCTS controls conditionals relating to a lot of different
syscalls in Linux-specific code (fstatat64 faccessat fchmodat fchownat
futimesat newfstatat linkat mkdirat openat readlinkat renameat
symlinkat unlinkat mknodat), where whether newfstatat fstatat64
futimesat are used depends on the architecture, as well as controlling
whether openat64_not_cancel_3 is expected to work in
sysdeps/posix/getcwd.c.  The assumptions are all OK as of 2.6.32
except for this MicroBlaze case, and it's generally desirable to get
rid of as many of the __ASSUME_ATFCTS conditionals as possible, to
simplify the code (the fallbacks include potential unbounded dynamic
stack allocations).  Thus, rather than the simplest approach of
undefining __ASSUME_ATFCTS for older kernels on MicroBlaze, this patch
takes the approach of using the linux-generic implementation of
futimesat for MicroBlaze kernels before 2.6.33 (all such kernels have
the utimensat syscall).

	[BZ #16648]
	* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
	[__LINUX_KERNEL_VERSION >= 0x020621] (__ASSUME_FUTIMESAT): Define.
	* sysdeps/unix/sysv/linux/microblaze/futimesat.c: New file.
2014-03-31 12:51:45 +00:00
Joseph Myers
03a7091fa2 Fix x86/x86_64 expl/exp10l spurious underflows (bug 16348).
This patch fixes bug 16348, spurious underflows from x86/x86_64 expl
on arguments close to 0.  These implementations effectively use expm1
(on the fractional part of the argument) internally, so resulting in
spurious underflows when the result is very close to 1.  For arguments
small enough that the round-to-nearest correct result is 1, this patch
uses 1+x instead.

These implementations are also used for exp10l and so the patch fixes
similar issues there (the 0x1p-67 threshold being small enough to be
correct for exp10l as well as expl).  But because of spurious
underflows in other exp10 implementations (bug 16560), the tests
aren't added for exp10 at this point - they can be added when the
other exp10 parts of that bug are fixed.

Tested x86_64 and x86; no ulps updates needed.

	[BZ #16348]
	* sysdeps/i386/fpu/e_expl.S (IEEE754_EXPL) [!USE_AS_EXPM1L]: Use
	1+x for argument with exponent below -67.
	* sysdeps/x86_64/fpu/e_expl.S (IEEE754_EXPL) [!USE_AS_EXPM1L]:
	Likewise.
	* math/auto-libm-test-in: Add more tests of exp.
	* math/auto-libm-test-out: Regenerated.
2014-03-27 18:41:14 +00:00
Joseph Myers
9be36fb8cb Make x86_64 fegetenv preserve exception mask (bug 16198).
Bug 16198 is x86_64 fegetenv wrongly masking exceptions for which
traps are enabled, because that's a side-effect of the fnstenv
instruction.  This patch fixes it to use fldenv immediately after
fnstenv, like the i386 version.  Tested x86_64 and x86.

	[BZ #16198]
	* sysdeps/x86_64/fpu/fegetenv.c (fegetenv): Use fldenv after
	fnstenv.
	* math/test-fenv-preserve.c: New file.
	* math/Makefile (tests): Add test-fenv-preserve.
2014-03-26 18:59:08 +00:00
Adhemerval Zanella
f3f1dab3ef Update powerpc-fpu ULPs. 2014-03-25 10:13:53 -05:00
Andreas Schwab
6da36183ee Fix use of uninitialized variable 2014-03-25 15:17:08 +01:00
Joseph Myers
046651c168 Relax gen-auto-libm-tests may-underflow rules, test log1p in all rounding modes.
gen-auto-libm-tests presently allows but does not require underflow
exceptions for results with magnitude in the range (greatest
subnormal, least normal].

In some cases, the magnitude of the exact result is very slightly
above the least normal, but rounding in the implementation results in
it effectively computing an infinite-precision result that is slightly
below the least normal, so raising an underflow exception.  This is in
accordance with the documented accuracy goals, but results in
testsuite failures.

This patch changes the logic to allow underflows when the mathematical
result is up to 0.5ulp above the least normal (so in any case where
the round-to-nearest result is the least normal).  Ideally underflows
in all these cases would be accepted only when an underflow with the
actual result is consistent with the rounding mode (in FE_TOWARDZERO
mode, a return value of the least normal implies that the
infinite-precision result did not underflow so there should be no
underflow exception, for example), so as to match the documented goals
more precisely - whereas at present the tests for exceptions are
completely independent of the tests of the returned values.  (The same
applies to overflow exceptions as well - they too should be checked
for consistency with the result, as in FE_TOWARDZERO mode a result
1ulp below the largest finite value should be inconsistent with an
overflow exception and cause a failure with overflow rather than
simply being considered a 1ulp error when overflow is expected.)  But
the present patch at least deals with the cases causing spurious
failures so that (a) certain existing tests no longer need to be
marked as having spurious exceptions (such markings in
auto-libm-test-in end up applying to more cases than just those they
are needed for) and (b) log1p can be tested in all rounding modes
without introducing more such failures.  This patch duly moves tests
of log1p to ALL_RM_TEST.

Tested x86_64 and x86 and ulps updated accordingly.

	[BZ #16357]
	[BZ #16599]
	* math/gen-auto-libm-tests.c (fp_format_desc): Add field
	min_plus_half.
	(fp_formats): Update initializers.
	(init_fp_formats): Initialize new field.
	(output_for_one_input_case): Allow underflow for results up to
	min_plus_half.
	* math/libm-test.inc (log1p_test): Use ALL_RM_TEST.
	* math/auto-libm-test-in: Don't mark some underflows from asin and
	atanh as spurious.
	* math/auto-libm-test-out: Regenerated.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
	* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2014-03-25 12:26:06 +00:00
Joseph Myers
f3426898bf Fix implicit __isinf declarations in exp.
My recent exp patch introduced warnings about implicit __isinf
declarations in exp because e_exp.c didn't include <math.h>.  This
patch fixes this.  Because <math.h> can't be included after
<math_private.h> (because of macro definitions of __nan*), it was
necessary to put an include in sysdeps/x86_64/fpu/multiarch/e_exp.c as
well.

Tested x86_64.

	* sysdeps/ieee754/dbl-64/e_exp.c: Include <math.h>.
	* sysdeps/x86_64/fpu/multiarch/e_exp.c
	[HAVE_FMA4_SUPPORT || HAVE_AVX_SUPPORT]: Likewise.
2014-03-24 22:00:32 +00:00
Stefan Liebler
509361270b S390: Fix namespace violation in struct stat (BZ #16714). 2014-03-24 16:59:01 +01:00
Stefan Liebler
26011b5cfa S390: Define SIZE_MAX as unsigned long (BZ #16712). 2014-03-24 16:59:01 +01:00
Stefan Liebler
a2d86bf1ec S390: Correct type of sa_flags in struct sigaction for POSIX conformance
(BZ #16713).
2014-03-24 16:59:01 +01:00
Andreas Schwab
a071766ebf Fix use of half-initialized result in getaddrinfo when using nscd (bug 16743)
This fixes a bug in the way the results from __nscd_getai are collected:
for every returned result a new entry is first added to the
gaih_addrtuple list, but if that result doesn't match the request this
entry remains uninitialized.  So for this non-matching result an extra
result with uninitialized content is returned.

To reproduce (with nscd running):

	$ getent ahostsv4 localhost
	127.0.0.1       STREAM localhost
	127.0.0.1       DGRAM
	127.0.0.1       RAW
	(null)          STREAM
	(null)          DGRAM
	(null)          RAW
2014-03-24 16:51:53 +01:00
Andreas Schwab
44152e4b05 Account for alloca use when collecting interface addresses (bug 16002)
To reproduce:

	# ip li add name dummy0 type dummy
	# site_id=$(head -c6 /dev/urandom | od -tx2 -An | tr ' ' ':')
	# for ((i = 0; i < 65536; i++)) do
	> ip ad ad $(printf fd80$site_id::%04x $i)/128 dev dummy0
	> done
	# (ulimit -s 900; getent ahosts localhost)
	# ip li de dummy0
2014-03-24 16:05:13 +01:00
Joseph Myers
b376a11a19 Fix dbl-64 exp overflow/underflow in non-default rounding modes (bug 16284).
The dbl-64 version of exp needs round-to-nearest mode for its internal
computations, but that has the consequence of inappropriate
overflowing and underflowing results in other rounding modes.  This
patch fixes this by recomputing the relevant results in cases where
the round-to-nearest result overflows to infinity or underflows to
zero (most of the diffs are actually just consequent reindentation).
Tests are enabled in all rounding modes for complex functions using
exp - but not for cexp because it turns out there are bugs causing
spurious underflows for cexp for some tests, which will need to be
fixed separately (I suspect ccos ccosh csin csinh ctan ctanh have
similar bugs, just not shown by the present set of test inputs).

Tested x86_64 and x86 and ulps updated accordingly.

	[BZ #16284]
	* sysdeps/ieee754/dbl-64/e_exp.c (__ieee754_exp): Use original
	rounding mode to recompute results that overflow to infinity or
	underflow to zero.
	* math/auto-libm-test-in: Don't mark tests as expected to fail for
	bug 16284.
	* math/auto-libm-test-out: Regenerated.
	* math/libm-test.inc (ccos_test): Use ALL_RM_TEST.
	(ccosh_test): Likewise.
	(csin_test_data): Use plus_oflow.
	(csin_test): Use ALL_RM_TEST.
	(csinh_test_data): Use plus_oflow.
	(csinh_test): Use ALL_RM_TEST.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
	* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2014-03-24 12:18:45 +00:00
Joseph Myers
1ca2d03e3e Fix -Wundef warnings for _ABI* on MIPS.
This patch fixes -Wundef warnings related to the _ABI* macros on MIPS.
GCC predefines only the _ABI* macro related to the ABI actually in
use, meaning that a conditional such as "#if _MIPS_SIM == _ABI64" is
true only for the ABI in question (all the macros are nonzero), but
produces a -Wundef warning for the other ABIs.  The normal approach to
using these macros is to include <sgidefs.h>, which ensures that all
three _ABI* macros are defined rather than just one; this patch does
so in the places that caused warnings (the bulk of the warnings
arising from <bits/wordsize.h>).  Tested that the warnings are fixed.

	* sysdeps/mips/bits/wordsize.h: Include <sgidefs.h>.
	* sysdeps/unix/sysv/linux/mips/getrlimit64.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/setrlimit64.c: Likewise.
2014-03-21 18:21:13 +00:00
Joseph Myers
f7be737659 Fix log (1) in round-downward mode (bug 16731).
According to ISO C Annex F, log (1) should be +0 in all rounding
modes, but some implementations in glibc wrongly return -0 in
round-downward mode (mapping to log1p (x - 1) is problematic because 1
- 1 is -0 in round-downward mode, and log1p (-0) is -0).  This patch
fixes this.  (It helps with some implementations of other functions
such as acosh, log2 and log10 that call out to log, but not enough to
enable all-rounding-modes testing for those functions without further
fixes to other implementations of them.)

Tested x86_64 and x86 and ulps updated accordingly, and did spot tests
for mips64 for the ldbl-128 fix, and i586 for the sysdeps/i386/fpu
implementations shadowed by those in sysdeps/i386/i686/fpu.

	[BZ #16731]
	* sysdeps/i386/fpu/e_log.S (__ieee754_log): Take absolute value
	when x - 1 is zero.
	* sysdeps/i386/fpu/e_logf.S (__ieee754_logf): Likewise.
	* sysdeps/i386/fpu/e_logl.S (__ieee754_logl): Likewise.
	* sysdeps/i386/i686/fpu/e_logl.S (__ieee754_logl): Likewise.
	* sysdeps/ieee754/dbl-64/e_log.c (__ieee754_log): Return +0 when
	argument is 1.
	* sysdeps/ieee754/ldbl-128/e_logl.c (__ieee754_logl): Likewise.
	* sysdeps/x86_64/fpu/e_logl.S: Take absolute value when x - 1 is
	zero.
	* math/libm-test.inc (log_test): Use ALL_RM_TEST.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
	* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2014-03-21 18:13:58 +00:00
Siddhesh Poyarekar
fdf4534d02 Fix -Wundef warnins for __FP_FAST_FMA*
The macros are defined by the compiler, so we can only verify whether
they are defined or not.
2014-03-21 17:28:43 +05:30
Adhemerval Zanella
6f23d0939e PowerPC: optimized strpbrk for POWER7
This patch add an optimized strpbrk for POWER7 by using a different
algorithm than default implementation: it constructs a table based on
the 'accept' argument and use this table to check for any occurance on
the input string. The idea is similar as x86_64 uses.
For PowerPC some tunings were added, such as unroll loops and memory
clear using VSX instructions.
2014-03-20 19:46:13 -05:00
Joseph Myers
8c92dfff41 Test most libm functions in all rounding modes.
This patch makes libm-test.inc tests of most functions use ALL_RM_TEST
unless there was some reason to defer that change for a particular
function.

I started out planning to defer the change for pow (bug 16315), cexp /
ccos / ccosh / csin / csinh (likely fallout from exp, bug 16284) and
cpow (exact expectations for signs of exact zero results not wanted).
Testing on x86_64 and x86 showed additional failures for acosh, cacos,
catan, catanh, clog, clog10, jn, log, log10, log1p, log2, tgamma, yn,
so making the change for those functions was deferred as well, pending
investigation to show which of these represent distinct bugs (some
such bugs may already be filed) and appropriate fixing / XFAILing.
Failures include wrong signs of zero results, errors slightly above
the 9ulp bound (in such cases it may make sense for functions to set
round-to-nearest internally to reduce error accumulation), large
errors and incorrect overflow/underflow for the rounding mode (with
consequent missing errno settings in some cases).  It's possible some
could be issues with test expectations, though I didn't notice any
that were obviously like that (I added NO_TEST_INLINE for cases that
were failing for ildoubl on x86 and where it seemed reasonable for
them to fail for the fast-math inlines).

There may of course be failures on other architectures for functions
that didn't fail on x86_64 or x86, in which case the usual rule
applies: file a bug (preferably identifying the underlying problem
function, in cases where function A calls function B and a problem
with function B may present in the test results for function A) if not
already in Bugzilla then fix or XFAIL.

Tested x86_64 and x86 and ulps updated accordingly.

	* math/libm-test.inc (asinh_test): Use ALL_RM_TEST.
	(atan_test): Likewise.
	(atanh_test_data): Use NO_TEST_INLINE for two tests.
	(atanh_test): Use ALL_RM_TEST.
	(atan2_test_data): Likewise.
	(cabs_test): Likewise.
	(cacosh_test): Likewise.
	(carg_test): Likewise.
	(casin_test): Likewise.
	(casinh_test): Likewise.
	(cbrt_test): Likewise.
	(csqrt_test): Likewise.
	(erf_test): Likewise.
	(erfc_test): Likewise.
	(pow10_test): Likewise.
	(exp2_test): Likewise.
	(hypot_test): Likewise.
	(j0_test): Likewise.
	(j1_test): Likewise.
	(lgamma_test): Likewise.
	(gamma_test): Likewise.
	(sincos_test): Likewise.
	(tanh_test): Likewise.
	(y0_test): Likewise.
	(y1_test): Likewise.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
	* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2014-03-21 00:03:38 +00:00
Adhemerval Zanella
6eaf95cbfa PowerPC: optimized strcspn for PPC64/POWER7
This patch add a optimized strcspn for POWER7 by using a different
algorithm than default implementation: it constructs a table based on
the 'accept' argument and use this table to check for any occurance
on the input string. The idea is similar as x86_64 uses.
For PowerPC some tunings were added, such as unroll loops and align
stack memory to table to 16 bytes (so VSX clean can ran without
alignment issues).
2014-03-20 11:24:52 -05:00
Joseph Myers
b1115e916a Fix __ASSUME_PREADV and __ASSUME_PWRITEV for Alpha and MicroBlaze (bug 16649).
Reviewing (for all architectures, with a baseline kernel version of
2.6.32) the kernel support for features for which __ASSUME_* macros
would be affected by a move to 2.6.32 as minimum kernel version showed
up that __ASSUME_PREADV and __ASSUME_PWRITEV were wrongly defined for
MicroBlaze (despite the corresponding syscall table entries not being
wired up in the kernel) and Alpha for 2.6.30 and above (although the
support on Alpha was added in 2.6.33).  This patch makes the
kernel-features.h files undefine those macros for appropriate
versions.

	[BZ #16649]
	* sysdeps/unix/sysv/linux/alpha/kernel-features.h
	[__LINUX_KERNEL_VERSION < 0x020621] (__ASSUME_PREADV): Undefine.
	[__LINUX_KERNEL_VERSION < 0x020621] (__ASSUME_PWRITEV): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
	(__ASSUME_PREADV): Undefine.
	(__ASSUME_PWRITEV): Likewise.
2014-03-19 13:10:52 +00:00
Roland McGrath
7d375303f2 Add comments about non-Linux use of bits/mman-linux.h. 2014-03-18 14:58:15 -07:00
Roland McGrath
0283ecca51 Move bits/mman-linux.h out of sysdeps/unix/sysv/linux/.
This way, non-Linux ports using the Linux values for bits/mman.h
constants need not duplicate the header.
2014-03-18 14:48:09 -07:00
Will Newton
fede7a5ffa aarch64: Remove inaccurate comment from sysdep.h
This comment appears to have been copied from the ARM port where it
makes more sense.

2014-03-18  Will Newton  <will.newton@linaro.org>

	* sysdeps/unix/sysv/linux/aarch64/sysdep.h: Remove
	inaccurate comment.
2014-03-18 11:50:39 +00:00
Will Newton
7579d8d5cb Revert "Fix HP_SMALL_TIMING_AVAIL -Wundef warnings"
This reverts commit 53f1bed392.
2014-03-17 20:39:24 +00:00
Will Newton
d0ac132472 Revert "Fix HAVE_RM_CTX -Wundef warnings"
This reverts commit 9290130a8d.
2014-03-17 20:36:06 +00:00
Will Newton
9290130a8d Fix HAVE_RM_CTX -Wundef warnings
ChangeLog:

2014-03-17  Will Newton  <will.newton@linaro.org>

	* sysdeps/generic/math_private.h: Check whether
	HAVE_RM_CTX is defined with #ifdef rather
	than #if.
2014-03-17 16:05:24 +00:00
Will Newton
53f1bed392 Fix HP_SMALL_TIMING_AVAIL -Wundef warnings
ChangeLog:

2014-03-17  Will Newton  <will.newton@linaro.org>

	* sysdeps/generic/ldsodefs.h: Check whether
	HP_SMALL_TIMING_AVAIL is defined with #ifdef rather
	than #if.
2014-03-17 16:05:22 +00:00
Roland McGrath
498a22333b Compile with -Wundef. 2014-03-14 11:32:51 -07:00
Adhemerval Zanella
c7de502503 PowerPC: remove wrong roundl implementation for PowerPC64
The roundl assembly implementation
(sysdeps/powerpc/powerpc64/fpu/s_roundl.S)
returns wrong results for some inputs where first double is a exact
integer and the precision is determined by second long double.

Checking on implementation comments and history, I am very confident the
assembly implementation was based on a version before commit
5c68d40169 that fixes BZ#2423 (Errors in
long double (ldbl-128ibm) rounding functions in glibc-2.4).

By just removing the implementation and make the build select
sysdeps/ieee754/ldbl-128ibm/s_roundl.c instead fixes the failing math.

This fixes 16707.
2014-03-14 12:54:47 -05:00
Adhemerval Zanella
98fb27a373 PowerPC: remove wrong nearbyintl implementation for PPC64
The nearbyintl assembly implementation
(sysdeps/powerpc/powerpc64/fpu/s_nearbyintl.S)
returns wrong results for some inputs where first double is a exact
integer and the precision is determined by second long double.

Checking on implementation comments and history, I am very confident the
assembly implementation was based on a version before commit
5c68d40169 that fixes BZ#2423 (Errors in
long double (ldbl-128ibm) rounding functions in glibc-2.4).

By just removing the implementation and make the build select
sysdeps/ieee754/ldbl-128ibm/s_nearbyintl.c instead fixes the failing
math.

Fixes BZ#16706.
2014-03-14 12:54:47 -05:00
Adhemerval Zanella
374f7f6121 PowerPC: remove wrong ceill implementation for PowerPC64
The ceill assembly implementation (sysdeps/powerpc/powerpc64/fpu/s_ceill.S)
returns wrong results for some inputs where first double is a exact
integer and the precision is determined by second long double.

Checking on implementation comments and history, I am very confident the
assembly implementation was based on a version before commit
5c68d40169 that fixes BZ#2423 (Errors in
long double (ldbl-128ibm) rounding functions in glibc-2.4).

By just removing the implementation and make the build select
sysdeps/ieee754/ldbl-128ibm/s_ceill.c instead fixes the failing math.

Fixes BZ#16701.
2014-03-14 12:54:47 -05:00
H.J. Lu
aa4de9cea5 Check AVX-512 assembler support first
It checks AVX-512 assembler support first and sets libc_cv_cc_avx512 to
$libc_cv_asm_avx512, instead of yes.  GCC won't support AVX-512 if
assembler doesn't support it.

	* sysdeps/x86_64/configure.ac: Check AVX-512 assembler support
	first.  Disable AVX-512 GCC support if assembler doesn't support
	it.
	* sysdeps/x86_64/configure: Regenerated.
2014-03-14 08:51:25 -07:00
Igor Zamyatin
2d63a517e4 Save and restore AVX-512 zmm registers to x86-64 ld.so
AVX-512 ISA adds 512-bit zmm registers.  This patch updates
_dl_runtime_profile to pass zmm registers to run-time audit. It also
changes _dl_x86_64_save_sse and _dl_x86_64_restore_sse to upport zmm
registers, which are called when only when RTLD_PREPARE_FOREIGN_CALL
is used.  Its performance impact is minimum.

	* config.h.in (HAVE_AVX512_SUPPORT): New #undef.
	(HAVE_AVX512_ASM_SUPPORT): Likewise.
	* sysdeps/x86_64/bits/link.h (La_x86_64_zmm): New.
	(La_x86_64_vector): Add zmm.
	* sysdeps/x86_64/Makefile (tests): Add tst-audit10.
	(modules-names): Add tst-auditmod10a and tst-auditmod10b.
	($(objpfx)tst-audit10): New target.
	($(objpfx)tst-audit10.out): Likewise.
	(tst-audit10-ENV): New.
	(AVX512-CFLAGS): Likewise.
	(CFLAGS-tst-audit10.c): Likewise.
	(CFLAGS-tst-auditmod10a.c): Likewise.
	(CFLAGS-tst-auditmod10b.c): Likewise.
	* sysdeps/x86_64/configure.ac: Set config-cflags-avx512,
	HAVE_AVX512_SUPPORT and HAVE_AVX512_ASM_SUPPORT.
	* sysdeps/x86_64/configure: Regenerated.
	* sysdeps/x86_64/dl-trampoline.S (_dl_runtime_profile): Add
	AVX-512 zmm register support.
	(_dl_x86_64_save_sse): Likewise.
	(_dl_x86_64_restore_sse): Likewise.
	* sysdeps/x86_64/dl-trampoline.h: Updated to support different
	size vector registers.
	* sysdeps/x86_64/link-defines.sym (YMM_SIZE): New.
	(ZMM_SIZE): Likewise.
	* sysdeps/x86_64/tst-audit10.c: New file.
	* sysdeps/x86_64/tst-auditmod10a.c: Likewise.
	* sysdeps/x86_64/tst-auditmod10b.c: Likewise.
2014-03-13 11:19:08 -07:00
Joseph Myers
abe6d90cc8 Fix __ASSUME_PSELECT for MicroBlaze (bug 16642).
Reviewing (for all architectures, with a baseline kernel version of
2.6.32) the kernel support for features for which __ASSUME_* macros
would be affected by a move to 2.6.32 as minimum kernel version showed
up that __ASSUME_PSELECT was wrongly defined for MicroBlaze, despite
the corresponding syscall table entry not being wired up in the
MicroBlaze kernel.

This patch makes the MicroBlaze kernel-features.h undefine
__ASSUME_PSELECT.  I'd also encourage wiring it up in the kernel (so
you can then make this #undef conditional, and eventually obsolete
once a recent-enough kernel is required).  I suspect it wasn't wired
up because of the mistaken comment in asm/unistd.h "obsolete ->
sys_pselect7" (there is no such syscall as pselect7).

	[BZ #16642]
	* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
	(__ASSUME_PSELECT): Undefine.
2014-03-12 17:29:24 +00:00
Adhemerval Zanella
dd3946c615 PowerPC: Fix bzero definition for static libc for PPC32
This patch fixes an issue for powerpc32-fpu static build which fails
with an 'bzero' undefined reference. This patch adds bzero ifunc selector
for static builds and fixes the '__bzero_ppc' reference to default
memset symbol (since static memset build does not provide ifunc
selector).

Fixes BZ#16689.
2014-03-12 09:03:22 -05:00
Adhemerval Zanella
27c7220a48 PowerPC: Fix strspn for static build
This patch makes the strspn ifunc selector build for static builds.
2014-03-12 06:54:44 -05:00
Joseph Myers
76c96cf7ec Fix MIPS libc_feresetround*_ctx to preserve exceptions.
Testing on mips64 showed missing underflow exceptions (from exp, for
example) in non-default rounding modes, caused by
libc_feresetround*_ctx wrongly restoring a saved environment without
preserving exceptions, when that's only valid for the _noex variants.
(I don't know why Steve didn't see this in his testing.)  This patch
fixes this by using libc_feupdateenv_mips_ctx for the relevant macros
and removing the problem definitions.

The problem definitions aren't suitable for the _noex macros either
because they only discard exceptions in non-default rounding modes,
and while for some uses of *_noex/*_NOEX it doesn't matter whether
exceptions are discarded, dbl-64/e_remainder.c requires
SET_RESTORE_ROUND_NOEX to cause exceptions to be discarded.  I think
the accumulated set of macros / functions for optimized exception /
rounding mode handling could do with a careful review by now, and
possible refactoring, and at least one new feature (extracting the
saved rounding mode from an environment / context variable - see
dbl-64/e_sqrt.c for a case where this could be used).

Tested mips64.

	* sysdeps/mips/math_private.h [__mips_hard_float]
	(libc_feresetround_ctx): Define to libc_feupdateenv_mips_ctx not
	libc_feresetround_mips_ctx.
	[__mips_hard_float] (libc_feresetroundf_ctx): Likewise.
	[__mips_hard_float] (libc_feresetroundl_ctx): Likewise.
	[__mips_hard_float] (libc_feresetround_mips_ctx): Remove.
2014-03-11 22:30:40 +00:00
Joseph Myers
600fa36158 Fix nextafter overflow in non-default rounding modes (bug 16677).
ISO C requires the result of nextafter to be independent of the
rounding mode, even when underflow or overflow occurs.  This patch
fixes the bug in various nextafter implementations that, having done
an overflowing computation to force an overflow exception (correct),
they then return the result of that computation rather than an
infinity computed some other way (incorrect, when the overflowing
result of arithmetic with that sign and rounding mode is finite but
the correct result is infinite) - generally by falling through to
existing code to return a value that in fact is correct for this case
(but was computed by an integer increment and so without generating
the exceptions required).  Having fixed the bug, the previously
deferred conversion of nextafter testing in libm-test.inc to
ALL_RM_TEST is also included.

Tested x86_64 and x86; also spot-checked results of nextafter tests
for powerpc32 and mips64 to test the ldbl-128ibm and ldbl-128
changes.  (The m68k change is untested.)

	[BZ #16677]
	* math/s_nextafter.c (__nextafter): Do not return value from
	overflowing computation.
	* sysdeps/i386/fpu/s_nextafterl.c (__nextafterl): Likewise.
	* sysdeps/ieee754/flt-32/s_nextafterf.c (__nextafterf): Likewise.
	* sysdeps/ieee754/ldbl-128/s_nextafterl.c (__nextafterl):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c (__nextafterl):
	Likewise.
	* sysdeps/m68k/m680x0/fpu/s_nextafterl.c (__nextafterl): Likewise.
	* math/libm-test.inc (nextafter_test): Use ALL_RM_TEST.
2014-03-11 22:24:00 +00:00
Roland McGrath
d7706c3258 ARM: Fix up setjmp/longjmp changes sfi_* macro use. 2014-03-11 10:59:01 -07:00
Adhemerval Zanella
4facea4730 PowerPC: Fix bzero definition for static libc for PPC64
This patch fixes an issue for powerpc64[le] static build where __bzero
is definied in multiple places (memset-ppc64.o and bzero.o). It is now
defined only in bzero.o and memset-ppc64.o only defined __bzero_ppc for
both dynamic and static library.

Fixes BZ#16683.
2014-03-11 09:31:59 -05:00
Vidya Ranganathan
e65caf1f1d PowerPC: strspn optimization for PPC64/POWER7
The optimization is achieved by following techniques:
  > hashing of needle.
  > hashing avoids scanning of duplicate entries in needle across the string.
  > initializing the hash table with Vector instructions (VSX) by quadword access.
  > unrolling when scanning for character in string across hash table.
2014-03-11 08:54:33 -05:00
Adhemerval Zanella
ba9cc0714e PowerPC: strncat optimization for PPC64
The optimization is achieved by following techniques:
1. Doubleword aligned memory access and compares using
   cmpb instruction.
2. Loop unrolling for byte load/store.
3. CPU pre-fetch to avoid cache miss.
2014-03-10 07:25:09 -05:00
Adhemerval Zanella
54b46a4b3e PowerPC: Fix modf/modff optimization return sign
This patch fix the optimized powerpc-fpu modf/modff implementation
when using in non-default rounding mode where the zero sign is not
as expected. It fixes the libm testsuite tests

  modf_downward (0)  == 0.00000000000000000000e+00
  modf_downward (20) == 0.00000000000000000000e+00
  modf_downward (21) == 0.00000000000000000000e+00

Where the sign returned was negative.
2014-03-08 11:24:32 -06:00
Joseph Myers
5c7808498e Fix POSIX namespace for <bits/siginfo.h> (bug 16674).
<bits/siginfo.h> causes symbols ILL_*, FPE_*, SEGV_* BUS_*, CLD_*,
POLL_* and TRAP_* to be exposed in <signal.h> (and <sys/wait.h>), even
though those symbols are not in non-XSI POSIX before POSIX.1-2008 and
even in POSIX.1-2008 the TRAP_* symbols are XSI-only.  This patch
conditions the symbols appropriately in the various <bits/siginfo.h>
implementations (various <signal.h> and <sys/wait.h> conformtest
issues remain for standards other than POSIX (1995/6)).  Tested
x86_64.

	[BZ #16674]
	* bits/siginfo.h (ILL_ILLOPC): Condition on [__USE_XOPEN_EXTENDED
	|| __USE_XOPEN2K8].
	(ILL_ILLOPN): Likewise.
	(ILL_ILLADR): Likewise.
	(ILL_ILLTRP): Likewise.
	(ILL_PRVOPC): Likewise.
	(ILL_PRVREG): Likewise.
	(ILL_COPROC): Likewise.
	(ILL_BADSTK): Likewise.
	(FPE_INTDIV): Likewise.
	(FPE_INTOVF): Likewise.
	(FPE_FLTDIV): Likewise.
	(FPE_FLTOVF): Likewise.
	(FPE_FLTUND): Likewise.
	(FPE_FLTRES): Likewise.
	(FPE_FLTINV): Likewise.
	(FPE_FLTSUB): Likewise.
	(SEGV_MAPERR): Likewise.
	(SEGV_ACCERR): Likewise.
	(BUS_ADRALN): Likewise.
	(BUS_ADRERR): Likewise.
	(BUS_OBJERR): Likewise.
	(TRAP_BRKPT): Condition on [__USE_XOPEN_EXTENDED].
	(TRAP_TRACE): Likewise.
	(CLD_EXITED): Condition on [__USE_XOPEN_EXTENDED ||
	__USE_XOPEN2K8].
	(CLD_KILLED): Likewise.
	(CLD_DUMPED): Likewise.
	(CLD_TRAPPED): Likewise.
	(CLD_STOPPED): Likewise.
	(CLD_CONTINUED): Likewise.
	(POLL_IN): Likewise.
	(POLL_OUT): Likewise.
	(POLL_MSG): Likewise.
	(POLL_ERR): Likewise.
	(POLL_PRI): Likewise.
	(POLL_HUP): Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/siginfo.h (ILL_ILLOPC):
	Likewise.
	(ILL_ILLOPN): Likewise.
	(ILL_ILLADR): Likewise.
	(ILL_ILLTRP): Likewise.
	(ILL_PRVOPC): Likewise.
	(ILL_PRVREG): Likewise.
	(ILL_COPROC): Likewise.
	(ILL_BADSTK): Likewise.
	(FPE_INTDIV): Likewise.
	(FPE_INTOVF): Likewise.
	(FPE_FLTDIV): Likewise.
	(FPE_FLTOVF): Likewise.
	(FPE_FLTUND): Likewise.
	(FPE_FLTRES): Likewise.
	(FPE_FLTINV): Likewise.
	(FPE_FLTSUB): Likewise.
	(SEGV_MAPERR): Likewise.
	(SEGV_ACCERR): Likewise.
	(BUS_ADRALN): Likewise.
	(BUS_ADRERR): Likewise.
	(BUS_OBJERR): Likewise.
	(BUS_MCEERR_AR): Likewise.
	(BUS_MCEERR_AO): Likewise.
	(TRAP_BRKPT): Condition on [__USE_XOPEN_EXTENDED].
	(TRAP_TRACE): Likewise.
	(CLD_EXITED): Condition on [__USE_XOPEN_EXTENDED ||
	__USE_XOPEN2K8].
	(CLD_KILLED): Likewise.
	(CLD_DUMPED): Likewise.
	(CLD_TRAPPED): Likewise.
	(CLD_STOPPED): Likewise.
	(CLD_CONTINUED): Likewise.
	(POLL_IN): Likewise.
	(POLL_OUT): Likewise.
	(POLL_MSG): Likewise.
	(POLL_ERR): Likewise.
	(POLL_PRI): Likewise.
	(POLL_HUP): Likewise.
	* sysdeps/unix/sysv/linux/bits/siginfo.h (ILL_ILLOPC): Likewise.
	(ILL_ILLOPN): Likewise.
	(ILL_ILLADR): Likewise.
	(ILL_ILLTRP): Likewise.
	(ILL_PRVOPC): Likewise.
	(ILL_PRVREG): Likewise.
	(ILL_COPROC): Likewise.
	(ILL_BADSTK): Likewise.
	(FPE_INTDIV): Likewise.
	(FPE_INTOVF): Likewise.
	(FPE_FLTDIV): Likewise.
	(FPE_FLTOVF): Likewise.
	(FPE_FLTUND): Likewise.
	(FPE_FLTRES): Likewise.
	(FPE_FLTINV): Likewise.
	(FPE_FLTSUB): Likewise.
	(SEGV_MAPERR): Likewise.
	(SEGV_ACCERR): Likewise.
	(BUS_ADRALN): Likewise.
	(BUS_ADRERR): Likewise.
	(BUS_OBJERR): Likewise.
	(BUS_MCEERR_AR): Likewise.
	(BUS_MCEERR_AO): Likewise.
	(TRAP_BRKPT): Condition on [__USE_XOPEN_EXTENDED].
	(TRAP_TRACE): Likewise.
	(CLD_EXITED): Condition on [__USE_XOPEN_EXTENDED ||
	__USE_XOPEN2K8].
	(CLD_KILLED): Likewise.
	(CLD_DUMPED): Likewise.
	(CLD_TRAPPED): Likewise.
	(CLD_STOPPED): Likewise.
	(CLD_CONTINUED): Likewise.
	(POLL_IN): Likewise.
	(POLL_OUT): Likewise.
	(POLL_MSG): Likewise.
	(POLL_ERR): Likewise.
	(POLL_PRI): Likewise.
	(POLL_HUP): Likewise.
	* sysdeps/unix/sysv/linux/ia64/bits/siginfo.h (ILL_ILLOPC):
	Likewise.
	(ILL_ILLOPN): Likewise.
	(ILL_ILLADR): Likewise.
	(ILL_ILLTRP): Likewise.
	(ILL_PRVOPC): Likewise.
	(ILL_PRVREG): Likewise.
	(ILL_COPROC): Likewise.
	(ILL_BADSTK): Likewise.
	(ILL_BADIADDR): Likewise.
	(ILL_BREAK): Likewise.
	(FPE_INTDIV): Likewise.
	(FPE_INTOVF): Likewise.
	(FPE_FLTDIV): Likewise.
	(FPE_FLTOVF): Likewise.
	(FPE_FLTUND): Likewise.
	(FPE_FLTRES): Likewise.
	(FPE_FLTINV): Likewise.
	(FPE_FLTSUB): Likewise.
	(FPE_DECOVF): Likewise.
	(FPE_DECDIV): Likewise.
	(FPE_DECERR): Likewise.
	(FPE_INVASC): Likewise.
	(FPE_INVDEC): Likewise.
	(SEGV_MAPERR): Likewise.
	(SEGV_ACCERR): Likewise.
	(SEGV_PSTKOVF): Likewise.
	(BUS_ADRALN): Likewise.
	(BUS_ADRERR): Likewise.
	(BUS_OBJERR): Likewise.
	(BUS_MCEERR_AR): Likewise.
	(BUS_MCEERR_AO): Likewise.
	(TRAP_BRKPT): Condition on [__USE_XOPEN_EXTENDED].
	(TRAP_TRACE): Likewise.
	(TRAP_BRANCH): Likewise.
	(TRAP_HWBKPT): Likewise.
	(CLD_EXITED): Condition on [__USE_XOPEN_EXTENDED ||
	__USE_XOPEN2K8].
	(CLD_KILLED): Likewise.
	(CLD_DUMPED): Likewise.
	(CLD_TRAPPED): Likewise.
	(CLD_STOPPED): Likewise.
	(CLD_CONTINUED): Likewise.
	(POLL_IN): Likewise.
	(POLL_OUT): Likewise.
	(POLL_MSG): Likewise.
	(POLL_ERR): Likewise.
	(POLL_PRI): Likewise.
	(POLL_HUP): Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/siginfo.h (ILL_ILLOPC): Likewise.
	(ILL_ILLOPN): Likewise.
	(ILL_ILLADR): Likewise.
	(ILL_ILLTRP): Likewise.
	(ILL_PRVOPC): Likewise.
	(ILL_PRVREG): Likewise.
	(ILL_COPROC): Likewise.
	(ILL_BADSTK): Likewise.
	(FPE_INTDIV): Likewise.
	(FPE_INTOVF): Likewise.
	(FPE_FLTDIV): Likewise.
	(FPE_FLTOVF): Likewise.
	(FPE_FLTUND): Likewise.
	(FPE_FLTRES): Likewise.
	(FPE_FLTINV): Likewise.
	(FPE_FLTSUB): Likewise.
	(SEGV_MAPERR): Likewise.
	(SEGV_ACCERR): Likewise.
	(BUS_ADRALN): Likewise.
	(BUS_ADRERR): Likewise.
	(BUS_OBJERR): Likewise.
	(BUS_MCEERR_AR): Likewise.
	(BUS_MCEERR_AO): Likewise.
	(TRAP_BRKPT): Condition on [__USE_XOPEN_EXTENDED].
	(TRAP_TRACE): Likewise.
	(CLD_EXITED): Condition on [__USE_XOPEN_EXTENDED ||
	__USE_XOPEN2K8].
	(CLD_KILLED): Likewise.
	(CLD_DUMPED): Likewise.
	(CLD_TRAPPED): Likewise.
	(CLD_STOPPED): Likewise.
	(CLD_CONTINUED): Likewise.
	(POLL_IN): Likewise.
	(POLL_OUT): Likewise.
	(POLL_MSG): Likewise.
	(POLL_ERR): Likewise.
	(POLL_PRI): Likewise.
	(POLL_HUP): Likewise.
	* sysdeps/unix/sysv/linux/s390/bits/siginfo.h (ILL_ILLOPC): Likewise.
	(ILL_ILLOPN): Likewise.
	(ILL_ILLADR): Likewise.
	(ILL_ILLTRP): Likewise.
	(ILL_PRVOPC): Likewise.
	(ILL_PRVREG): Likewise.
	(ILL_COPROC): Likewise.
	(ILL_BADSTK): Likewise.
	(FPE_INTDIV): Likewise.
	(FPE_INTOVF): Likewise.
	(FPE_FLTDIV): Likewise.
	(FPE_FLTOVF): Likewise.
	(FPE_FLTUND): Likewise.
	(FPE_FLTRES): Likewise.
	(FPE_FLTINV): Likewise.
	(FPE_FLTSUB): Likewise.
	(SEGV_MAPERR): Likewise.
	(SEGV_ACCERR): Likewise.
	(BUS_ADRALN): Likewise.
	(BUS_ADRERR): Likewise.
	(BUS_OBJERR): Likewise.
	(BUS_MCEERR_AR): Likewise.
	(BUS_MCEERR_AO): Likewise.
	(TRAP_BRKPT): Condition on [__USE_XOPEN_EXTENDED].
	(TRAP_TRACE): Likewise.
	(CLD_EXITED): Condition on [__USE_XOPEN_EXTENDED ||
	__USE_XOPEN2K8].
	(CLD_KILLED): Likewise.
	(CLD_DUMPED): Likewise.
	(CLD_TRAPPED): Likewise.
	(CLD_STOPPED): Likewise.
	(CLD_CONTINUED): Likewise.
	(POLL_IN): Likewise.
	(POLL_OUT): Likewise.
	(POLL_MSG): Likewise.
	(POLL_ERR): Likewise.
	(POLL_PRI): Likewise.
	(POLL_HUP): Likewise.
	* sysdeps/unix/sysv/linux/sparc/bits/siginfo.h (ILL_ILLOPC): Likewise.
	(ILL_ILLOPN): Likewise.
	(ILL_ILLADR): Likewise.
	(ILL_ILLTRP): Likewise.
	(ILL_PRVOPC): Likewise.
	(ILL_PRVREG): Likewise.
	(ILL_COPROC): Likewise.
	(ILL_BADSTK): Likewise.
	(FPE_INTDIV): Likewise.
	(FPE_INTOVF): Likewise.
	(FPE_FLTDIV): Likewise.
	(FPE_FLTOVF): Likewise.
	(FPE_FLTUND): Likewise.
	(FPE_FLTRES): Likewise.
	(FPE_FLTINV): Likewise.
	(FPE_FLTSUB): Likewise.
	(SEGV_MAPERR): Likewise.
	(SEGV_ACCERR): Likewise.
	(BUS_ADRALN): Likewise.
	(BUS_ADRERR): Likewise.
	(BUS_OBJERR): Likewise.
	(BUS_MCEERR_AR): Likewise.
	(BUS_MCEERR_AO): Likewise.
	(TRAP_BRKPT): Condition on [__USE_XOPEN_EXTENDED].
	(TRAP_TRACE): Likewise.
	(CLD_EXITED): Condition on [__USE_XOPEN_EXTENDED ||
	__USE_XOPEN2K8].
	(CLD_KILLED): Likewise.
	(CLD_DUMPED): Likewise.
	(CLD_TRAPPED): Likewise.
	(CLD_STOPPED): Likewise.
	(CLD_CONTINUED): Likewise.
	(POLL_IN): Likewise.
	(POLL_OUT): Likewise.
	(POLL_MSG): Likewise.
	(POLL_ERR): Likewise.
	(POLL_PRI): Likewise.
	(POLL_HUP): Likewise.
	* sysdeps/unix/sysv/linux/tile/bits/siginfo.h (ILL_ILLOPC): Likewise.
	(ILL_ILLOPN): Likewise.
	(ILL_ILLADR): Likewise.
	(ILL_ILLTRP): Likewise.
	(ILL_PRVOPC): Likewise.
	(ILL_PRVREG): Likewise.
	(ILL_COPROC): Likewise.
	(ILL_BADSTK): Likewise.
	(ILL_DBLFLT): Likewise.
	(ILL_HARDWALL): Likewise.
	(FPE_INTDIV): Likewise.
	(FPE_INTOVF): Likewise.
	(FPE_FLTDIV): Likewise.
	(FPE_FLTOVF): Likewise.
	(FPE_FLTUND): Likewise.
	(FPE_FLTRES): Likewise.
	(FPE_FLTINV): Likewise.
	(FPE_FLTSUB): Likewise.
	(SEGV_MAPERR): Likewise.
	(SEGV_ACCERR): Likewise.
	(BUS_ADRALN): Likewise.
	(BUS_ADRERR): Likewise.
	(BUS_OBJERR): Likewise.
	(BUS_MCEERR_AR): Likewise.
	(BUS_MCEERR_AO): Likewise.
	(TRAP_BRKPT): Condition on [__USE_XOPEN_EXTENDED].
	(TRAP_TRACE): Likewise.
	(CLD_EXITED): Condition on [__USE_XOPEN_EXTENDED ||
	__USE_XOPEN2K8].
	(CLD_KILLED): Likewise.
	(CLD_DUMPED): Likewise.
	(CLD_TRAPPED): Likewise.
	(CLD_STOPPED): Likewise.
	(CLD_CONTINUED): Likewise.
	(POLL_IN): Likewise.
	(POLL_OUT): Likewise.
	(POLL_MSG): Likewise.
	(POLL_ERR): Likewise.
	(POLL_PRI): Likewise.
	(POLL_HUP): Likewise.
	* sysdeps/unix/sysv/linux/x86/bits/siginfo.h (ILL_ILLOPC): Likewise.
	(ILL_ILLOPN): Likewise.
	(ILL_ILLADR): Likewise.
	(ILL_ILLTRP): Likewise.
	(ILL_PRVOPC): Likewise.
	(ILL_PRVREG): Likewise.
	(ILL_COPROC): Likewise.
	(ILL_BADSTK): Likewise.
	(FPE_INTDIV): Likewise.
	(FPE_INTOVF): Likewise.
	(FPE_FLTDIV): Likewise.
	(FPE_FLTOVF): Likewise.
	(FPE_FLTUND): Likewise.
	(FPE_FLTRES): Likewise.
	(FPE_FLTINV): Likewise.
	(FPE_FLTSUB): Likewise.
	(SEGV_MAPERR): Likewise.
	(SEGV_ACCERR): Likewise.
	(BUS_ADRALN): Likewise.
	(BUS_ADRERR): Likewise.
	(BUS_OBJERR): Likewise.
	(BUS_MCEERR_AR): Likewise.
	(BUS_MCEERR_AO): Likewise.
	(TRAP_BRKPT): Condition on [__USE_XOPEN_EXTENDED].
	(TRAP_TRACE): Likewise.
	(CLD_EXITED): Condition on [__USE_XOPEN_EXTENDED ||
	__USE_XOPEN2K8].
	(CLD_KILLED): Likewise.
	(CLD_DUMPED): Likewise.
	(CLD_TRAPPED): Likewise.
	(CLD_STOPPED): Likewise.
	(CLD_CONTINUED): Likewise.
	(POLL_IN): Likewise.
	(POLL_OUT): Likewise.
	(POLL_MSG): Likewise.
	(POLL_ERR): Likewise.
	(POLL_PRI): Likewise.
	(POLL_HUP): Likewise.
	* conform/Makefile (test-xfail-POSIX/signal.h/conform): Remove.
	(test-xfail-POSIX/sys/wait.h/conform): Likewise.
2014-03-07 23:57:56 +00:00
Marcus Shawcroft
302949e294 [PATCH] [AArch64] Optional trapping exceptions support.
Trapping exceptions in AArch64 are optional.  The relevant exception
control bits in FPCR are are defined as RES0 hence the absence of
support can be detected by reading back the FPCR and comparing with
the desired value.
2014-03-07 14:05:20 +00:00
Joseph Myers
f214606a0e Enumerate tests with special rules in tests-special variable.
This patch is a revised and updated version of
<https://sourceware.org/ml/libc-alpha/2014-01/msg00196.html>.

In order to generate overall summaries of the results of all tests in
the glibc testsuite, we need to identify and concatenate the files
with the results of individual tests.

Tomas Dohnalek's patch used $(common-objpfx)*/*.test-result for this.
However, the normal glibc approach is explicit enumeration of the
expected set of files with a given property, rather than all files
matching some pattern like that.  Furthermore, we would like to be
able to mark tests as UNRESOLVED if the file with their results is for
some reason missing, and in future we would like to be able to mark
tests as UNSUPPORTED if they are disabled for a particular
configuration (rather than simply having them missing from the list of
tests as at present).  Such handling of tests that were not run or did
not record results requires an explicit enumeration of tests.

For the tests following the default makefile rules, $(tests) (and
$(xtests)) provides such an enumeration.  Others, however, are added
directly as dependencies of the "tests" and "xtests" makefile
targets.  This patch changes the makefiles to put them in variables
tests-special and xtests-special, with appropriate dependencies on the
tests listed there then being added centrally.

Those variables are used in Rules and so need to be set before Rules
is included in a subdirectory makefile, which is often earlier in the
makefile than the dependencies were present before.  We previously
discussed the question of where to include Rules; see the question at
<https://sourceware.org/ml/libc-alpha/2012-11/msg00798.html>, and a
discussion in
<https://sourceware.org/ml/libc-alpha/2013-01/msg00337.html> of why
Rules is included early rather than late in subdirectory makefiles.

It was necessary to avoid an indirection through the check-abi target
and get the check-abi-* targets for individual libraries into the
tests-special variable.  The intl/ test $(objpfx)tst-gettext.out,
previously built only because of dependencies from other tests, was
also added to tests-special for the same reason.

The entries in tests-special are the full makefile targets, complete
with $(objpfx) and .out.  If a future change causes tests to be named
consistently with a .out suffix, this can be changed to include just
the path relative to $(objpfx), without .out.

Tested x86_64, including that the same set of files is generated in
the build directory by a build and testsuite run both before and after
the patch (except for changes to the
elf/tst-null-argv.debug.out.<number> file name), and a build with
run-built-tests=no to verify there aren't any more obvious instances
of the issue Marcus Shawcroft reported with a previous version in
<https://sourceware.org/ml/libc-alpha/2014-01/msg00462.html>.

	* Makefile (tests): Change dependencies to ....
	(tests-special): ... additions to this variable.
	(tests): Depend on $(tests-special).
	* Makerules (check-abi-list): New variable.
	(check-abi): Depend on $(check-abi-list).
	[$(subdir) = elf] (tests-special): Add
	$(objpfx)check-abi-libc.out.
	[$(build-shared) = yes && subdir] (tests-special): Add
	$(check-abi-list).
	[$(build-shared) = yes && subdir] (tests): Do not depend on
	check-abi.
	* Rules (tests): Depend on $(tests-special).
	(xtests): Depend on $(xtests-special).
	* catgets/Makefile (tests): Change dependencies to ....
	(tests-special): ... additions to this variable.
	* conform/Makefile (tests): Change dependencies to ....
	(tests-special): ... additions to this variable.
	* elf/Makefile (tests): Change dependencies to ....
	(tests-special): ... additions to this variable.
	* grp/Makefile (tests): Change dependencies to ....
	(tests-special): ... additions to this variable.
	* iconv/Makefile (xtests): Change dependencies to ....
	(xtests-special): ... additions to this variable.
	* iconvdata/Makefile (tests): Change dependencies to ....
	(tests-special): ... additions to this variable.
	* intl/Makefile (tests): Change dependencies to ....
	(tests-special): ... additions to this variable.  Also add
	$(objpfx)tst-gettext.out.
	* io/Makefile (tests): Change dependencies to ....
	(tests-special): ... additions to this variable.
	* libio/Makefile (tests): Change dependencies to ....
	(tests-special): ... additions to this variable.
	* malloc/Makefile (tests): Change dependencies to ....
	(tests-special): ... additions to this variable.
	* misc/Makefile (tests): Change dependencies to ....
	(tests-special): ... additions to this variable.
	* nptl/Makefile (tests): Change dependencies to ....
	(tests-special): ... additions to this variable.
	* nptl_db/Makefile (tests): Change dependencies to ....
	(tests-special): ... additions to this variable.
	* posix/Makefile (tests): Change dependencies to ....
	(tests-special): ... additions to this variable.
	(xtests): Change dependencies to ....
	(xtests-special): ... additions to this variable.
	* resolv/Makefile (tests): Change dependencies to ....
	(tests-special): ... additions to this variable.
	(xtests): Change dependencies to ....
	(xtests-special): ... additions to this variable.
	* stdio-common/Makefile (tests): Change dependencies to ....
	(tests-special): ... additions to this variable.
	(do-tst-unbputc): Remove target.
	(do-tst-printf): Likewise.
	* stdlib/Makefile (tests): Change dependencies to ....
	(tests-special): ... additions to this variable.
	* string/Makefile (tests): Change dependencies to ....
	(tests-special): ... additions to this variable.
	* sysdeps/x86/Makefile (tests): Change dependencies to ....
	(tests-special): ... additions to this variable.

localedata:
	* Makefile (tests): Change dependencies to ....
	(tests-special): ... additions to this variable.
2014-03-06 22:35:33 +00:00
Joseph Myers
67737b8f07 Don't define __ASSUME_UTIMES for linux-generic architectures.
The __ASSUME_UTIMES macro describes whether the utimes syscall is
present.  For linux-generic architectures, it isn't (utimensat is
instead), so the macro should not be defined for them; this patch
removes the spurious definitions for such architectures.  (Those
definitions don't actually cause any user-visible bug, because
futimes.c doesn't use __ASSUME_UTIMES if __ASSUME_UTIMENSAT is
defined, and futimesat.c and utimes.c are overridden for
linux-generic, but the definitions are still logically incorrect.)

	* sysdeps/unix/sysv/linux/aarch64/kernel-features.h
	(__ASSUME_UTIMES): Remove.
	* sysdeps/unix/sysv/linux/tile/kernel-features.h
	(__ASSUME_UTIMES): Likewise.
2014-03-06 14:13:18 +00:00
Joseph Myers
e6b6a85705 Don't include individual test ulps in libm-test-ulps.
As recently discussed
<https://sourceware.org/ml/libc-alpha/2014-02/msg00670.html>, it
doesn't seem particularly useful for libm-test-ulps files to contain
huge amounts of data on ulps for individual tests; just the global
maximum observed ulps for each function, together with the
verification of exceptions, errno and special results such as
infinities and NaNs for each test, suffices to verify that a
function's behavior on the given test inputs is within the expected
accuracy.  Removing this data reduces source tree churn caused by
updates to these files when libm tests are added, and reduces the
frequency with which testsuite additions actually need libm-test-ulps
changes at all.

Accordingly, this patch removes that data, so that individual tests
get checked against the global bounds for the given function and only
generate an error if those are exceeded.  Tested x86_64 (including
verifying that if an ulps value is artificially reduced, the tests do
indeed fail as they should and "make regen-ulps" generates the
expected changes).

	* math/libm-test.inc (struct ulp_data): Don't refer to ulps for
	individual tests in comment.
	(libm-test-ulps.h): Don't refer to test_ulps in #include comment.
	(prev_max_error): New variable.
	(prev_real_max_error): Likewise.
	(prev_imag_max_error): Likewise.
	(compare_ulp_data): Don't refer to test names in comment.
	(find_test_ulps): Remove function.
	(find_function_ulps): Likewise.
	(find_complex_function_ulps): Likewise.
	(init_max_error): Take function name as argument.  Look up ulps
	for that function.
	(print_ulps): Remove function.
	(print_max_error): Use prev_max_error instead of calling
	find_function_ulps.
	(print_complex_max_error): Use prev_real_max_error and
	prev_imag_max_error instead of calling find_complex_function_ulps.
	(check_float_internal): Take max_ulp parameter instead of calling
	find_test_ulps.  Don't call print_ulps.
	(check_float): Update call to check_float_internal.
	(check_complex): Update calls to check_float_internal.
	(START): Pass argument to init_max_error.
	* math/gen-libm-test.pl (%results): Don't include "kind"
	information.
	(parse_ulps): Don't handle ulps of individual tests.
	(print_ulps_file): Likewise.
	(output_ulps): Likewise.
	* math/README.libm-test: Update.
	* manual/libm-err-tab.pl (parse_ulps): Don't handle ulps of
	individual tests.
	* sysdeps/aarch64/libm-test-ulps: Remove individual test ulps.
	* sysdeps/alpha/fpu/libm-test-ulps: Likewise.
	* sysdeps/arm/libm-test-ulps: Likewise.
	* sysdeps/i386/fpu/libm-test-ulps: Likewise.
	* sysdeps/ia64/fpu/libm-test-ulps: Likewise.
	* sysdeps/m68k/coldfire/fpu/libm-test-ulps: Likewise.
	* sysdeps/m68k/m680x0/fpu/libm-test-ulps: Likewise.
	* sysdeps/microblaze/libm-test-ulps: Likewise.
	* sysdeps/mips/mips32/libm-test-ulps: Likewise.
	* sysdeps/mips/mips64/libm-test-ulps: Likewise.
	* sysdeps/powerpc/fpu/libm-test-ulps: Likewise.
	* sysdeps/powerpc/nofpu/libm-test-ulps: Likewise.
	* sysdeps/s390/fpu/libm-test-ulps: Likewise.
	* sysdeps/sh/libm-test-ulps: Likewise.
	* sysdeps/sparc/fpu/libm-test-ulps: Likewise.
	* sysdeps/tile/libm-test-ulps: Likewise.
	* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.

	* sysdeps/hppa/fpu/libm-test-ulps: Remove individual test ulps.
2014-03-05 15:02:38 +00:00
Adhemerval Zanella
2b85d2a0b9 PowerPC: Update powerpc-fpu ULPs. 2014-03-03 08:58:08 -06:00
Rajalakshmi Srinivasaraghavan
c7debbdfac PowerPC: strrchr optimization for POWER7/PPC64
This patch optimizes strrchr() for ppc64. It uses aligned memory
access along with cmpb instruction and CPU prefetch to avoid
cache misses for speed improvement.
2014-03-03 08:06:41 -06:00
Adhemerval Zanella
fe13a20c37 PowerPC: llround/llroundf POWER8 optimization
This patch add a optimized llround/llroundf implementation for POWER8
using the new Move From VSR Doubleword instruction to gains some
cycles from FP to GRP register move.
2014-02-27 12:58:33 -06:00
Adhemerval Zanella
1ad8950a3e PowerPC: llrint/llrintf POWER8 optimization
This patch add a optimized llrint/llrintf implementation for POWER8
using the new Move From VSR Doubleword instruction to gains some
cycles from FP to GRP register move.
2014-02-27 12:58:33 -06:00
Adhemerval Zanella
cac626d60a PowerPC: Optimized finite/finitef for POWER8
This patch add a optimized finite/finitef implementation for POWER8
using the new Move From VSR Doubleword instruction to gains some
cycles from FP to GRP register move.
2014-02-27 12:58:33 -06:00
Adhemerval Zanella
4393fc119c PowerPC: Optimized isinf/isinff for POWER8
This patch add a optimized isinf/isinff implementation for POWER8
using the new Move From VSR Doubleword instruction to gains some
cycles from FP to GRP register move.
2014-02-27 12:58:33 -06:00
Adhemerval Zanella
487972aea5 PowerPC: Optimized isnan/isnanf for POWER8
This patch add a optimized isnan/isnanf implementation for POWER8
using the new Move From VSR Doubleword instruction to gains some
cycles from FP to GRP register move.
2014-02-27 12:58:32 -06:00
Joey Ye
7d92b78723 Fix ARM NAN fraction bits.
Current ARM soft-float implementation is violating the RTABI
(http://infocenter.arm.com/help/topic/com.arm.doc.ihi0043d/IHI0043D_rtabi.pdf)
Section 4.1.1.1:

When not otherwise specified by IEEE 754, the result on an invalid
operation should be the quiet NaN bit pattern with only the most
significant bit of the significand set, and all other significand bits
zero.

This patch fixes it by setting _FP_NANFRAC_* to zero.

Ran make check test with -mfloat-abi=soft. No regression.

	* sysdeps/arm/soft-fp/sfp-machine.h (_FP_NANFRAC_S, _FP_NANFRAC_D)
	(_FP_NANFRAC_Q): Set to zero.
2014-02-27 17:44:43 +00:00
Siddhesh Poyarekar
1cadc85813 Fix sign of input to bsloww1 (BZ #16623)
In 84ba214c, I removed some redundant sign computations and in the
process, I incorrectly got rid of a temporary variable, thus passing
the absolute value of the input to bsloww1.  This caused #16623.

This fix undoes the incorrect change.
2014-02-27 21:12:09 +05:30
Steve Ellcey
5b456e9d61 Add macros and inline functions to mips math_private.h file.
This is a patch to the MIPS math_private.h file to define HAVE_RM_CTX and
implement the ctx macros.  I also defined a few other macros and inline
functions that I skipped the first time.
2014-02-26 14:19:20 -08:00
Adhemerval Zanella
86e58c0815 PowerPC: Update powerpc-fpu ULPs. 2014-02-26 06:54:34 -06:00
Carlos O'Donell
d050367659 BZ #16613: Support TLS in audit libraries.
This commit fixes a bug where the dynamic loader would crash
when loading audit libraries, via LD_AUDIT, where those libraries
used TLS. The dynamic loader was not considering that the audit
libraries would use TLS and failed to bump the TLS generation
counter leaving TLS usage inconsistent after loading the audit
libraries.

https://sourceware.org/ml/libc-alpha/2014-02/msg00569.html
2014-02-25 13:18:15 -05:00
Will Newton
80a56cc3ee ARM: Add SystemTap probes to longjmp and setjmp.
Now the ARM port implements pointer encryption for jmpbufs, gdb needs
a SystemTap probe point in longjmp to determine the target PC of
a call to longjmp. This patch implements the probe point in longjmp
and a similar probe point in setjmp.

In order to have all the appropriate registers available to pass to the
probe this reorders the layout of jmpbuf, putting the sp and lr registers
at the start rather than the end, allowing them to be read and
written sequentially.

Tested on armv7, no new failures in the glibc testsuite and confirmed
that this fixes the gdb.base/longjmp.exp failures in the gdb testsuite.

ChangeLog:

2014-02-25  Will Newton  <will.newton@linaro.org>

	* sysdeps/arm/__longjmp.S: Include stap-probe.h.
	(__longjmp): Restore sp and lr before restoring callee
	saved registers.  Add longjmp and longjmp_target
	SystemTap probe point.
	* sysdeps/arm/bits/setjmp.h (__jmp_buf): Update comment.
	* sysdeps/arm/include/bits/setjmp.h (__JMP_BUF_SP):
	Define to zero to match jmpbuf layout.
	* sysdeps/arm/setjmp.S: Include stap-probe.h.
	(__sigsetjmp): Save sp and lr before saving callee
	saved registers.  Add setjmp SystemTap probe point.
2014-02-25 10:07:04 +00:00
Stefan Liebler
3ea0f74e1d S/390: Regenerate ULPs. 2014-02-25 09:38:00 +01:00
Joseph Myers
f0881698bf Generate .test-result files for tests with special rules.
This patch, an updated version of
<https://sourceware.org/ml/libc-alpha/2014-01/msg00194.html> now
proposed for inclusion in glibc, extends the generation of PASS and
FAIL status in .test-result files for individual tests to cover tests
with their own custom makefile rules.  This is just adding
$(evaluate-test) calls to all such rules, since tests with multiple
commands were previously split into separate tests.

Note that the tests the makefiles expect to fail (posix/annexc and
conformtest) currently get FAIL listed in the .test-result file,
rather than XFAIL; a subsequent patch will introduce a better XFAIL
mechanism.

Tested x86_64.

	* Makefile ($(objpfx)c++-types-check.out): Use $(evaluate-test).
	($(objpfx)check-local-headers.out): Likewise.
	($(objpfx)begin-end-check.out): Likewise.
	* Makerules (check-abi-%.out): Likewise.
	* catgets/Makefile ($(objpfx)test1.cat): Likewise.
	($(objpfx)test2.cat): Likewise.
	($(objpfx)de/libc.cat): Likewise.
	($(objpfx)test-gencat.out): Likewise.
	* conform/Makefile ($(objpfx)run-conformtest.out): Likewise.
	* elf/Makefile ($(objpfx)order-cmp.out): Likewise.
	($(objpfx)noload-mem): Likewise.
	($(objpfx)tst-pathopt.out): Likewise.
	($(objpfx)tst-rtld-load-self.out): Likewise.
	($(objpfx)tst-array1-cmp.out): Likewise.
	($(objpfx)tst-array1-static-cmp.out): Likewise.
	($(objpfx)tst-array2-cmp.out): Likewise.
	($(objpfx)tst-array3-cmp.out): Likewise.
	($(objpfx)tst-array4-cmp.out): Likewise.
	($(objpfx)tst-array5-cmp.out): Likewise.
	($(objpfx)tst-array5-static-cmp.out): Likewise.
	($(objpfx)check-textrel.out): Likewise.
	($(objpfx)check-execstack.out): Likewise.
	($(objpfx)check-localplt.out): Likewise.
	($(objpfx)order2-cmp.out): Likewise.
	($(objpfx)tst-leaks1-mem): Likewise.
	($(objpfx)tst-leaks1-static-mem): Likewise.
	($(objpfx)tst-initorder-cmp.out): Likewise.
	($(objpfx)tst-initorder2-cmp.out): Likewise.
	($(objpfx)tst-unused-dep.out): Likewise.
	($(objpfx)tst-unused-dep-cmp.out): Likewise.
	* grp/Makefile ($(objpfx)tst_fgetgrent.out): Likewise.
	* iconv/Makefile (test-iconvconfig): Likewise.
	* iconvdata/Makefile ($(objpfx)mtrace-tst-loading): Likewise.
	($(objpfx)iconv-test.out): Likewise.
	($(objpfx)tst-tables.out): Likewise.
	* intl/Makefile ($(objpfx)mtrace-tst-gettext): Likewise.
	($(objpfx)tst-gettext.out): Likewise.
	($(objpfx)tst-translit.out): Likewise.
	($(objpfx)tst-gettext2.out): Likewise.
	($(objpfx)tst-gettext4.out): Likewise.
	($(objpfx)tst-gettext6.out): Likewise.
	* io/Makefile ($(objpfx)ftwtest.out): Likewise.
	* libio/Makefile ($(objpfx)test-freopen.out): Likewise.
	($(objpfx)tst-fopenloc-cmp.out): Likewise.
	($(objpfx)tst-fopenloc-mem.out): Likewise.
	* malloc/Makefile ($(objpfx)tst-mtrace.out): Likewise.
	* misc/Makefile ($(objpfx)tst-error1-mem): Likewise.
	* posix/Makefile ($(objpfx)globtest.out): Likewise.
	($(objpfx)wordexp-tst.out): Likewise.
	($(objpfx)annexc.out): Likewise.
	($(objpfx)tst-fnmatch-mem): Likewise.
	($(objpfx)bug-regex2-mem): Likewise.
	($(objpfx)bug-regex14-mem): Likewise.
	($(objpfx)bug-regex21-mem): Likewise.
	($(objpfx)bug-regex31-mem): Likewise.
	($(objpfx)tst-vfork3-mem): Likewise.
	($(objpfx)tst-rxspencer-no-utf8-mem): Likewise.
	($(objpfx)tst-pcre-mem): Likewise.
	($(objpfx)tst-boost-mem): Likewise.
	($(objpfx)tst-getconf.out): Likewise.
	($(objpfx)bug-ga2-mem): Likewise.
	($(objpfx)bug-glob2-mem): Likewise.
	* resolv/Makefile ($(objpfx)mtrace-tst-leaks): Likewise.
	($(objpfx)mtrace-tst-leaks2): Likewise.
	* stdio-common/Makefile ($(objpfx)tst-unbputc.out): Likewise.
	($(objpfx)tst-printf.out): Likewise.
	($(objpfx)tst-setvbuf1.out): Likewise.
	($(objpfx)tst-setvbuf1-cmp.out): Likewise.
	* stdlib/Makefile ($(objpfx)isomac.out): Likewise.
	($(objpfx)tst-fmtmsg.out): Likewise.
	* string/Makefile ($(objpfx)tst-svc-cmp.out): Likewise.
	* sysdeps/x86/Makefile ($(objpfx)tst-xmmymm.out): Likewise.

localedata:
	* Makefile ($(objpfx)sort-test.out): Use $(evaluate-test).
	($(objpfx)tst-fmon.out): Likewise.
	($(objpfx)tst-numeric.out): Likewise.
	($(objpfx)tst-locale.out): Likewise.
	($(objpfx)tst-rpmatch.out): Likewise.
	($(objpfx)tst-trans.out): Likewise.
	($(objpfx)tst-mbswcs.out): Likewise.
	($(objpfx)tst-ctype.out): Likewise.
	($(objpfx)tst-wctype.out): Likewise.
	($(objpfx)tst-langinfo.out): Likewise.
	($(objpfx)mtrace-tst-leaks): Likewise.

nptl:
	* Makefile ($(objpfx)tst-stack3-mem): Use $(evaluate-test).
	($(objpfx)tst-tls6.out): Likewise.
	($(objpfx)tst-cleanup0.out): Likewise.
	($(objpfx)tst-cleanup0-cmp.out): Likewise.
	($(objpfx)tst-cancel-wrappers.out): Likewise.
	($(objpfx)tst-oddstacklimit.out): Likewise.

nptl_db:
	* Makefile ($(objpfx)db-symbols.out): Use
	$(evaluate-test).
2014-02-21 21:48:08 +00:00
Joseph Myers
acd7f096d7 Complete _BSD_SOURCE / _SVID_source followup cleanup.
This patch completes the headers cleanup consequent on removal of
_BSD_SOURCE and _SVID_SOURCE (apart from any subsequent deprecations):

* #endif conditionals that referred to BSD or SVID are updated.

* Redundant __USE_* tests in cases involving __USE_MISC are removed.
  This includes cases such as __USE_MISC || __USE_ISOC99, where
  __USE_MISC is redundant (because __USE_MISC is only ever defined in
  the default / _DEFAULT_SOURCE / _GNU_SOURCE case, when __USE_ISOC99
  is also defined; the same applies to the non-XSI-extended POSIX
  versions), and cases involving __USE_GNU, where __USE_GNU is
  redundant (because if __USE_GNU is defined, so are the other __USE_*
  macros).  There may well be other cases of __USE_FOO || __USE_BAR
  tests that could be simplified because one macro implies the other;
  this patch only addresses cases involving __USE_MISC.

Tested x86_64.

	* bits/fcntl.h [__USE_MISC]: Remove redundant conditionals.
	* bits/sigaction.h [__USE_MISC]: Likewise.
	* bits/waitstatus.h: Update #endif comments.
	* ctype/ctype.h: Likewise.
	* dirent/dirent.h: Likewise.
	[__USE_MISC]: Remove redundant conditionals.
	* grp/grp.h: Update #endif comments.
	[__USE_GNU]: Remove redundant conditionals.
	[__USE_MISC]: Likewise.
	* inet/netinet/in.h [__USE_GNU]: Likewise.
	* io/sys/stat.h [__USE_MISC]: Likewise.
	* libio/bits/stdio-ldbl.h [__USE_MISC]: Likewise.
	* libio/bits/stdio.h: Update #endif comments.
	[__USE_MISC]: Remove redundant conditionals.
	* libio/bits/stdio2.h [__USE_MISC]: Likewise.
	* libio/stdio.h: Update #endif comments.
	[__USE_MISC]: Remove redundant conditionals.
	* math/bits/math-finite.h [__USE_MISC]: Likewise.
	* math/bits/mathcalls.h [__USE_MISC]: Likewise.
	* math/math.h: Update #else and #endif comments.
	[__USE_MISC]: Remove redundant conditionals.
	* misc/sys/uio.h: Update #endif comments.
	* posix/bits/unistd.h [__USE_MISC]: Remove redundant conditionals.
	* posix/glob.h [__USE_MISC]: Likewise.
	* posix/sys/types.h: Update #endif comments.
	[__USE_MISC]: Remove redundant conditionals.
	* posix/sys/wait.h: Update #endif comments.
	[__USE_MISC]: Remove redundant conditionals.
	* posix/unistd.h: Update #endif comments.
	[__USE_MISC]: Remove redundant conditionals.
	* pwd/pwd.h [__USE_GNU]: Likewise.
	[__USE_MISC]: Likewise.
	* resolv/netdb.h [__USE_GNU]: Likewise.
	* signal/signal.h: Update #endif comments.
	[__USE_MISC]: Remove redundant conditionals.
	* stdlib/stdlib.h: Update #else and #endif comments.
	[__USE_MISC]: Remove redundant conditionals.
	[__USE_GNU]: Likewise.
	* string/bits/string2.h [__USE_MISC]: Likewise.
	* string/string.h: Update #endif comments.
	[__USE_MISC]: Remove redundant conditionals.
	* sysdeps/m68k/m680x0/fpu/bits/mathinline.h [__USE_MISC]:
	Likewise.
	* sysdeps/mach/hurd/bits/fcntl.h [__USE_MISC]: Likewise.
	* sysdeps/mach/hurd/bits/stat.h [__USE_MISC]: Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/sigaction.h [__USE_MISC]:
	Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/stat.h [__USE_MISC]:
	Likewise.
	* sysdeps/unix/sysv/linux/bits/fcntl-linux.h: Update #endif
	comments.
	[__USE_MISC]: Remove redundant conditionals.
	* sysdeps/unix/sysv/linux/bits/in.h [__USE_GNU]: Likewise.
	* sysdeps/unix/sysv/linux/bits/sigaction.h [__USE_MISC]: Likewise.
	* sysdeps/unix/sysv/linux/bits/socket.h [__USE_GNU]: Likewise.
	* sysdeps/unix/sysv/linux/bits/stat.h [__USE_MISC]: Likewise.
	* sysdeps/unix/sysv/linux/ia64/bits/sigaction.h [__USE_MISC]:
	Likewise.
	* sysdeps/unix/sysv/linux/m68k/bits/stat.h [__USE_MISC]: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/sigaction.h [__USE_MISC]:
	Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/stat.h [__USE_MISC]: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/bits/stat.h [__USE_MISC]:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/bits/sigaction.h [__USE_MISC]:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/bits/stat.h [__USE_MISC]: Likewise.
	* sysdeps/unix/sysv/linux/sparc/bits/sigaction.h [__USE_MISC]:
	Likewise.
	* sysdeps/unix/sysv/linux/sparc/bits/stat.h [__USE_MISC]:
	Likewise.
	* sysdeps/unix/sysv/linux/x86/bits/stat.h [__USE_MISC]: Likewise.
	* sysdeps/x86/bits/string.h: Update #endif comments.
	* sysdeps/x86/fpu/bits/mathinline.h [__USE_MISC]: Remove redundant
	conditionals.
	* time/sys/time.h: Update #endif comments.
	* time/time.h: Likewise.
	[__USE_MISC]: Remove redundant conditionals.
2014-02-21 21:45:26 +00:00
Yury Gribov
a5d82e4e34 Update ARM ulps for VFPv4 (bug 16600).
[BZ #16600]
	* sysdeps/arm/libm-test-ulps: Update for VFPv4.
2014-02-21 17:21:13 +00:00
Adam Conrad
105fa38156 Allow sys/auxv.h to be used from the testsuite on powerpc and sparc.
elf/tst-auxv.c includes misc/sys/auxv.h, which ends up not actually
being included due to the guard overlap, and getauxval becomes an
implicit declaration and implicit pointer conversion which means, at
best, the test isn't actually testing what it thinks it is and, at
worst, it'll crash and burn on platforms where implict pointer
conversion is a Very Bad Thing.

	* sysdeps/powerpc/bits/hwcap.h: Allow _SYSDEPS_SYSDEP_H guard as a
	synonym for _SYS_AUXV_H to allow direct inclusion.
	* sysdeps/sparc/bits/hwcap.h: Likewise.
	* sysdeps/powerpc/sysdep.h: Define _SYSDEPS_SYSDEP_H instead of
	_SYS_AUXV_H so we can include sysdep.h and sys/auxv.h together.
	* sysdeps/sparc/sysdep.h: Likewise.
2014-02-21 00:24:03 -07:00
Joseph Myers
bc688c1029 Fix __ASSUME_SENDMMSG issues (bug 16611).
Similar to the issues for accept4 and recvmmsg, __ASSUME_SENDMMSG is
also confused about whether it relates to function availability or
socketcall operation availability, and the conditions for the
definition are always wrong (sendmmsg appeared in Linux kernel 3.0,
not 2.6.39); this is now bug 16611.

This patch splits the macro into separate macros like those for
accept4 and recvmmsg, defining them for appropriate kernel versions.

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

	[BZ #16611]
	* sysdeps/unix/sysv/linux/kernel-features.h
	[__LINUX_KERNEL_VERSION >= 0x030000 && __ASSUME_SOCKETCALL]
	(__ASSUME_SENDMMSG_SOCKETCALL): Define.
	[__LINUX_KERNEL_VERSION >= 0x030000 && (__i386__ || __x86_64__ ||
	__powerpc__ || __sh__ || __sparc__)] (__ASSUME_SENDMMSG_SYSCALL):
	Likewise.
	[__i386__ || __powerpc__ || __sh__ || __sparc__]
	(__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL): Likewise.
	[__ASSUME_SENDMMSG_SOCKETCALL || __ASSUME_SENDMMSG_SYSCALL]
	(__ASSUME_SENDMMSG): Define instead of using previous
	[__LINUX_KERNEL_VERSION >= 0x020627] condition.
	* sysdeps/unix/sysv/linux/aarch64/kernel-features.h
	(__ASSUME_SENDMMSG_SYSCALL): Define.
	* sysdeps/unix/sysv/linux/alpha/kernel-features.h
	[__LINUX_KERNEL_VERSION >= 0x030200] (__ASSUME_SENDMMSG_SYSCALL):
	Likewise.
	* sysdeps/unix/sysv/linux/arm/kernel-features.h
	[__LINUX_KERNEL_VERSION >= 0x030000] (__ASSUME_SENDMMSG_SYSCALL):
	Likewise.
	* sysdeps/unix/sysv/linux/ia64/kernel-features.h
	[__LINUX_KERNEL_VERSION >= 0x030000] (__ASSUME_SENDMMSG_SYSCALL):
	Likewise.
	* sysdeps/unix/sysv/linux/internal_sendmmsg.S [__ASSUME_SOCKETCALL
	&& !__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL &&
	!__ASSUME_SENDMMSG_SYSCALL] (__NR_sendmmsg): Undefine.
	[__ASSUME_SENDMMSG]: Change conditionals to
	[__ASSUME_SENDMMSG_SOCKETCALL].
	* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
	[__LINUX_KERNEL_VERSION >= 0x030300] (__ASSUME_SENDMMSG_SYSCALL):
	Define.
	* sysdeps/unix/sysv/linux/mips/kernel-features.h
	[__LINUX_KERNEL_VERSION >= 0x030100] (__ASSUME_SENDMMSG_SYSCALL):
	Likewise.
	* sysdeps/unix/sysv/linux/sendmmsg.c [__ASSUME_SOCKETCALL &&
	!__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL &&
	!__ASSUME_SENDMMSG_SYSCALL] (__NR_sendmmsg): Undefine.
	[!__ASSUME_SENDMMSG]: Change conditional to
	[!__ASSUME_SENDMMSG_SOCKETCALL].
	* sysdeps/unix/sysv/linux/tile/kernel-features.h
	[__LINUX_KERNEL_VERSION >= 0x030000] (__ASSUME_SENDMMSG_SYSCALL):
	Define.

	* sysdeps/unix/sysv/linux/hppa/kernel-features.h
	[__LINUX_KERNEL_VERSION >= 0x030100] (__ASSUME_SENDMMSG_SYSCALL):
	Define.
2014-02-20 17:55:35 +00:00
Joseph Myers
0e31b18ca2 Fix __ASSUME_RECVMMSG issues (bug 16610).
Similar to the issues for accept4, __ASSUME_RECVMMSG is also confused
about whether it relates to function availability or socketcall
operation availability; this is now bug 16610.

Nothing actually tests __ASSUME_RECVMMSG for function availability,
but implicit in the definition in kernel-features.h is the idea that
it makes sense when the syscall is available and socketcall is not
being used.  As with accept4, there are architectures where the
syscall was added later than the socketcall operation, meaning that
assuming glibc is built with recent enough kernel headers, it does not
attempt to use socketcall for these operations and __ASSUME_RECVMMSG
gets defined for kernels >= 2.6.33 even when the syscall was only
added later.

This patch splits the macro into separate macros like those used for
accept4; having similar macro structure in both cases (and for
sendmmsg once I've dealt with that) seems likely to be less confusing
than having a different structure on the basis of nothing actually
needing to assume the recvmmsg function works.  Appropriate
definitions are added for all architectures.

Architecture-specific note: Tile's kernel-features.h says "TILE glibc
support starts with 2.6.36", which is accurate in that 2.6.36 was the
first kernel version with Tile support, and on that basis I've made
that header define __ASSUME_RECVMMSG_SYSCALL unconditionally.
However, Tile's configure.ac has arch_minimum_kernel=2.6.32.  Since
arch_minimum_kernel is meant to reflect only kernel.org kernel
versions, I think that should change to 2.6.36.  (If using glibc with
kernel versions from before a port went in kernel.org, it's your
responsibility to change arch_minimum_kernel in a local patch, and at
the same time to adjust any __ASSUME_* definitions that may not be
correct for your older kernel; for developing the official glibc it
should only ever be necessary to consider what official kernel.org
releases support.)

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

	[BZ #16610]
	* sysdeps/unix/sysv/linux/kernel-features.h
	[__LINUX_KERNEL_VERSION >= 0x020621 && __ASSUME_SOCKETCALL]
	(__ASSUME_RECVMMSG_SOCKETCALL): Define.
	[(__LINUX_KERNEL_VERSION >= 0x020621 && (__i386__ || __x86_64__ ||
	__sparc__)) || (__LINUX_KERNEL_VERSION >= 0x020625 && (__powerpc__
	|| __sh__))] (__ASSUME_RECVMMSG_SYSCALL): Likewise.
	[__i386__ || __sparc__]
	(__ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL): Likewise.
	[__ASSUME_RECVMMSG_SOCKETCALL || __ASSUME_RECVMMSG_SYSCALL]
	(__ASSUME_RECVMMSG): Define instead of using previous
	[__LINUX_KERNEL_VERSION >= 0x020621] condition.
	* sysdeps/unix/sysv/linux/aarch64/kernel-features.h
	(__ASSUME_RECVMMSG_SYSCALL): Define.
	* sysdeps/unix/sysv/linux/alpha/kernel-features.h
	[__LINUX_KERNEL_VERSION >= 0x020621] (__ASSUME_RECVMMSG_SYSCALL):
	Likewise.
	* sysdeps/unix/sysv/linux/arm/kernel-features.h
	[__LINUX_KERNEL_VERSION >= 0x020621] (__ASSUME_RECVMMSG_SYSCALL):
	Likewise.
	* sysdeps/unix/sysv/linux/ia64/kernel-features.h
	[__LINUX_KERNEL_VERSION >= 0x020621] (__ASSUME_RECVMMSG_SYSCALL):
	Likewise.
	* sysdeps/unix/sysv/linux/internal_recvmmsg.S [__ASSUME_SOCKETCALL
	&& !__ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL &&
	!__ASSUME_RECVMMSG_SYSCALL] (__NR_recvmmsg): Undefine.
	[__ASSUME_RECVMMSG]: Change condition to
	[__ASSUME_RECVMMSG_SOCKETCALL].
	* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
	[__LINUX_KERNEL_VERSION >= 0x020621] (__ASSUME_RECVMMSG_SYSCALL):
	Define.
	(__ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL): Likewise.
	* sysdeps/unix/sysv/linux/mips/kernel-features.h
	[__LINUX_KERNEL_VERSION >= 0x020621] (__ASSUME_RECVMMSG_SYSCALL):
	Likewise.
	* sysdeps/unix/sysv/linux/recvmmsg.c [__ASSUME_SOCKETCALL &&
	!__ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL &&
	!__ASSUME_RECVMMSG_SYSCALL] (__NR_recvmmsg): Undefine.
	[!__ASSUME_RECVMMSG]: Change condition to
	[!__ASSUME_RECVMMSG_SOCKETCALL].
	* sysdeps/unix/sysv/linux/tile/kernel-features.h
	(__ASSUME_RECVMMSG_SYSCALL): Define.

	* sysdeps/unix/sysv/linux/hppa/kernel-features.h
	[__LINUX_KERNEL_VERSION >= 0x020622] (__ASSUME_RECVMMSG_SYSCALL):
	Define.
2014-02-20 17:53:08 +00:00
Joseph Myers
dd481ccffd Fix __ASSUME_ACCEPT4 issues (bug 16609).
In <https://sourceware.org/ml/libc-alpha/2013-12/msg00008.html>,
Aurelien noted issues with the definition of __ASSUME_ACCEPT4, which I
discussed in more detail in
<https://sourceware.org/ml/libc-alpha/2013-12/msg00014.html>; these
are now bug 16609.

As previously noted, __ASSUME_ACCEPT4 is used in two ways:

* In OS-independent code, to mean "accept4 can be assumed to work
  rather than fail with ENOSYS".  It doesn't matter whether it's
  implemented with socketcall or a separate syscall.

* In Linux-specific code, to mean "the socketcall multiplex syscall
  can be assumed to handle the accept4 operation.  When used in
  Linux-specific code, it *never* refers to anything relating to the
  accept4 syscall, only to the socketcall multiplexer.

This patch splits the macro into separate __ASSUME_ACCEPT4_SOCKETCALL,
__ASSUME_ACCEPT4_SYSCALL and __ASSUME_ACCEPT4 to clarify the different
cases involved.  A macro __ASSUME_SOCKETCALL is added for convenience
in writing logic relating to all socketcall architectures.  In
addition, to address the issue of architectures where socketcall
support for accept4 was added before a separate syscall was added (and
so the separate syscall should not be used unless known to be present
or fallback to socketcall is available), a fourth macro
__ASSUME_ACCEPT4_SYSCALL_WITH_SOCKETCALL is added to indicate that the
syscall became available at the same time as socketcall support.  This
is then used in the relevant places in a conditional determining
whether to undefine __NR_accept4 (the simple approach to avoiding the
syscall's presence causing problems; I didn't try to implement runtime
fallback from the syscall to socketcall).

Architecture-specific note: alpha defined __ASSUME_ACCEPT4 for 2.6.33
and later, but actually the syscall was added for alpha in 3.2, so
this patch uses the correct condition for __ASSUME_ACCEPT4_SYSCALL
there.

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

	[BZ #16609]
	* sysdeps/unix/sysv/linux/kernel-features.h [__i386__ ||
	__powerpc__ || __s390__ || __sh__ || __sparc__]
	(__ASSUME_SOCKETCALL): Define.
	[__LINUX_KERNEL_VERSION && __ASSUME_SOCKETCALL]
	(__ASSUME_ACCEPT4_SOCKETCALL): Likewise.
	[(__LINUX_KERNEL_VERSION >= 0x02061c && (__x86_64__ || __sparc__))
	|| (__LINUX_KERNEL_VERSION >= 0x020625 && (__powerpc__ ||
	__sh__))] (__ASSUME_ACCEPT4_SYSCALL): Likewise.
	[__sparc__] (__ASSUME_ACCEPT4_SYSCALL_WITH_SOCKETCALL): Likewise.
	[__ASSUME_ACCEPT4_SOCKETCALL || __ASSUME_ACCEPT4_SYSCALL]
	(__ASSUME_ACCEPT4): Define instead of using previous
	[__LINUX_KERNEL_VERSION >= 0x02061c && (__i386__ || __x86_64__ ||
	__powerpc__ || __sparc__ || __s390__)] condition.
	* sysdeps/unix/sysv/linux/aarch64/kernel-features.h
	(__ASSUME_ACCEPT4): Change to __ASSUME_ACCEPT4_SYSCALL.
	* sysdeps/unix/sysv/linux/accept4.c [__ASSUME_SOCKETCALL &&
	!__ASSUME_ACCEPT4_SYSCALL_WITH_SOCKETCALL &&
	!__ASSUME_ACCEPT4_SYSCALL] (__NR_accept4): Undefine.
	[!__ASSUME_ACCEPT4]: Change condition to
	[!__ASSUME_ACCEPT4_SOCKETCALL].
	* sysdeps/unix/sysv/linux/alpha/kernel-features.h
	(__ASSUME_ACCEPT4): Change to __ASSUME_ACCEPT4_SYSCALL.  Correct
	condition to [__LINUX_KERNEL_VERSION >= 0x030200].
	* sysdeps/unix/sysv/linux/arm/kernel-features.h
	[__LINUX_KERNEL_VERSION >= 0x020624] (__ASSUME_ACCEPT4): Change to
	__ASSUME_ACCEPT4_SYSCALL.
	* sysdeps/unix/sysv/linux/i386/accept4.S [__ASSUME_ACCEPT4]:
	Change conditions to [__ASSUME_ACCEPT4_SOCKETCALL].
	* sysdeps/unix/sysv/linux/ia64/kernel-features.h
	[__LINUX_KERNEL_VERSION >= 0x030300] (__ASSUME_ACCEPT4): Change to
	__ASSUME_ACCEPT4_SYSCALL.
	* sysdeps/unix/sysv/linux/internal_accept4.S [__ASSUME_SOCKETCALL
	&& !__ASSUME_ACCEPT4_SYSCALL_WITH_SOCKETCALL &&
	!__ASSUME_ACCEPT4_SYSCALL] (__NR_accept4): Undefine.
	[__ASSUME_ACCEPT4]: Change condition to
	[__ASSUME_ACCEPT4_SOCKETCALL].
	* sysdeps/unix/sysv/linux/m68k/kernel-features.h
	(__ASSUME_SOCKETCALL): Define.
	[__LINUX_KERNEL_VERSION >= 0x02061c] (__ASSUME_ACCEPT4): Remove.
	* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
	(__ASSUME_SOCKETCALL): Define.
	(__ASSUME_ACCEPT4): Remove.
	[__LINUX_KERNEL_VERSION >= 0x020621] (__ASSUME_ACCEPT4_SYSCALL):
	Define.
	* sysdeps/unix/sysv/linux/mips/kernel-features.h
	[__LINUX_KERNEL_VERSION >= 0x02061f] (__ASSUME_ACCEPT4_SYSCALL):
	Likewise.
	* sysdeps/unix/sysv/linux/tile/kernel-features.h
	(__ASSUME_ACCEPT4): Change to __ASSUME_ACCEPT4_SYSCALL.

	* sysdeps/unix/sysv/linux/hppa/kernel-features.h
	[__LINUX_KERNEL_VERSION >= 0x020622] (__ASSUME_ACCEPT4_SYSCALL):
	Define.
2014-02-20 17:50:31 +00:00
Joseph Myers
5d7b57cad5 Update ARM HWCAP data.
This patch updates the ARM HWCAP data (both bits/hwcap.h and
dl-procinfo.[ch]) to match Linux 3.13.

	* sysdeps/unix/sysv/linux/arm/bits/hwcap.h (HWCAP_ARM_VFPD32): New
	macro.
	(HWCAP_ARM_LPAE): Likewise.
	(HWCAP_ARM_EVTSTRM): Likewise.
	* sysdeps/unix/sysv/linux/arm/dl-procinfo.c (_dl_arm_cap_flags):
	Add vpfd32, lpae and evtstrm.
	* sysdeps/unix/sysv/linux/arm/dl-procinfo.h (_DL_HWCAP_COUNT):
	Increase to 22.
2014-02-20 03:29:34 +00:00
Joseph Myers
63689d6165 Move tests of clog10 from libm-test.inc to auto-libm-test-in.
This patch moves tests of clog10 to auto-libm-test-in.  Note that this
means gen-auto-libm-tests will now depend on the recent MPC 1.0.2
release which added a fix for a bug that made gen-auto-libm-tests hang
for clog10.  (It still can't conveniently be used for cacos cacosh
casin casinh catan catanh csin csinh because of extreme slowness of
those functions for special cases in MPC; at least some slow cases of
csin / csinh are fixed in MPC trunk, but not in a release.)

Tested x86_64 and x86 and ulps updated accordingly.

	* math/auto-libm-test-in: Add tests of clog10.
	* math/auto-libm-test-out: Regenerated.
	* math/libm-test.inc (clog10_test_data): Use AUTO_TESTS_c_c.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
	* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2014-02-19 14:26:29 +00:00
Joseph Myers
a4fb786185 Fix gen-auto-libm-tests sticky bit setting for negative results.
gen-auto-libm-tests has a bug in the logic for setting a sticky bit
based on the ternary value from MPFR: it is correct for positive
results, but for negative results mpz_setbit acts as if a two's
complement representation is used, whereas the low bit needs setting
based on the sign-magnitude representation GMP actually uses.  (This
showed up in converting fma tests to use auto-libm-test-in /
gen-auto-libm-tests.)

This patch fixes the problem by negating the mpz_t value to set its
low bit.  There are lots of changes to auto-libm-test-out (mainly 1ulp
fixes to ldbl-128 expected results), but only a few ulps updates are
needed on x86 / x86_64.  In one case, a corrected expectation showed
up a spurious underflow exception where the correct result is slightly
outside the underflowing range.

Tested x86_64 and x86 and ulps updated accordingly.

	* math/gen-auto-libm-tests.c (adjust_real): Ensure integers are
	non-negative before setting low bit.
	* math/auto-libm-test-in: Mark one asin test possibly having
	spurious underflow.
	* math/auto-libm-test-out: Regenerated.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
	* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2014-02-18 14:45:41 +00:00
David Holsgrove
ef114eafbf [MicroBlaze]: Move MicroBlaze from ports to sysdeps.
2014-02-17  David Holsgrove <david.holsgrove@xilinx.com>

        * sysdeps/microblaze: Move directory from ports/sysdeps/microblaze.
        * sysdeps/unix/sysv/linux/microblaze: Move directory from
          ports/sysdeps/unix/sysv/linux/microblaze.
        * README: Add missing listing for microblaze*-*-linux-gnu.

Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
2014-02-17 11:08:21 +10:00
Mike Frysinger
c70a4b1db0 ia64: relocate out of ports/ subdir 2014-02-16 01:12:38 -05:00
Joseph Myers
743151aeae Update MIPS math-tests.h for GCC 4.9 using soft-fp.
GCC trunk now uses soft-fp for MIPS64 long double, so supporting
integration with hardware exceptions and rounding modes.  This patch
updates MIPS math-tests.h accordingly not to disable exception and
rounding mode tests in this case.

Tested mips64 and ulps updated to reflect the newly run tests.

	* sysdeps/mips/math-tests.h: Include <features.h>.
	[!__mips_soft_float && _MIPS_SIM != _ABIO32 && __GNUC_PREREQ (4, 9)]
	(ROUNDING_TESTS_long_double): Do not define.
	[!__mips_soft_float && _MIPS_SIM != _ABIO32 && __GNUC_PREREQ (4, 9)]
	(EXCEPTION_TESTS_long_double): Likewise.
	* sysdeps/mips/mips64/libm-test-ulps: Update.
2014-02-13 00:46:45 +00:00
Joseph Myers
498afc54df Combine __USE_BSD and __USE_SVID into __USE_MISC.
This patch cleans up following the obsoletion of _BSD_SOURCE and
_SVID_SOURCE by combining __USE_BSD and __USE_SVID into __USE_MISC.

The only non-mechanical part of this patch is the changes to
features.h; everything else is simple substitution of __USE_MISC for
the old macros.  Thus, this patch leaves obviously redundant
conditionals such as "defined __USE_MISC || defined __USE_MISC", and
does not update #endif comments where they referred to BSD or SVID in
words instead of the literal macro name.  This is intended to
facilitate patch review by separating the less mechanical changes from
these purely mechanical changes into a separate patch.  (I do intend
to integrate all the changes from
<https://sourceware.org/ml/libc-alpha/2013-12/msg00226.html>, which I
believe includes all the trailing comment updates, in subsequent
patches.)

Tested x86_64.

	* include/features.h (__USE_BSD): Remove macro definitions.
	(__USE_SVID): Likewise.
	(_BSD_SOURCE): Likewise.
	(_SVID_SOURCE): Likewise.
	[!defined _BSD_SOURCE && !defined _SVID_SOURCE]: Remove condition
	from definition of _DEFAULT_SOURCE.
	[_BSD_SOURCE || _SVID_SOURCE]: Change condition to
	[_DEFAULT_SOURCE].
	* bits/fcntl.h [__USE_BSD]: Change condition to [__USE_MISC].
	* bits/mman.h [__USE_BSD]: Likewise.
	* bits/termios.h [__USE_BSD]: Likewise.
	* bits/waitstatus.h [__USE_BSD]: Likewise.
	* ctype/ctype.h [__USE_SVID]: Likewise.
	* dirent/dirent.h [__USE_BSD]: Likewise.
	* grp/grp.h [__USE_SVID]: Likewise.
	[__USE_BSD]: Likewise.
	* inet/netinet/igmp.h [__USE_BSD]: Likewise.
	* io/fcntl.h [__USE_BSD]: Likewise.
	* io/ftw.h [__USE_BSD]: Likewise.
	* io/sys/stat.h [__USE_BSD]: Likewise.
	* libio/bits/stdio-ldbl.h [__USE_BSD]: Likewise.
	* libio/bits/stdio2.h [__USE_BSD]: Likewise.
	* libio/stdio.h [__USE_SVID]: Likewise.
	[__USE_BSD]: Likewise.
	* math/math.h [__USE_SVID]: Likewise.
	[__USE_BSD]: Likewise.
	* misc/bits/syslog-ldbl.h [__USE_BSD]: Likewise.
	* misc/bits/syslog.h [__USE_BSD]: Likewise.
	* misc/search.h [__USE_SVID]: Likewise.
	* misc/sys/mman.h [__USE_BSD]: Likewise.
	* misc/sys/syslog.h [__USE_BSD]: Likewise.
	* misc/sys/uio.h [__USE_BSD]: Likewise.
	* posix/bits/unistd.h [__USE_BSD]: Likewise.
	* posix/glob.h [__USE_BSD]: Likewise.
	* posix/regex.h [__USE_BSD]: Likewise.
	* posix/sys/types.h [__USE_BSD]: Likewise.
	[__USE_SVID]: Likewise.
	* posix/sys/utsname.h [__USE_SVID]: Likewise.
	* posix/sys/wait.h [__USE_BSD]: Likewise.
	[__USE_SVID]: Likewise.
	* posix/unistd.h [__USE_BSD]: Likewise.
	[__USE_SVID]: Likewise.
	* pwd/pwd.h [__USE_SVID]: Likewise.
	* resolv/netdb.h [__USE_BSD]: Likewise.
	* setjmp/setjmp.h [__USE_BSD]: Likewise.
	* signal/signal.h [__USE_BSD]: Likewise.
	[__USE_SVID]: Likewise.
	* socket/sys/socket.h [__USE_BSD]: Likewise.
	* stdlib/fmtmsg.h [__USE_SVID]: Likewise.
	* stdlib/stdlib.h [__USE_BSD]: Likewise.
	[__USE_SVID]: Likewise.
	* string/bits/string2.h [__USE_BSD]: Likewise.
	[__USE_SVID]: Likewise.
	* string/bits/string3.h [__USE_BSD]: Likewise.
	* string/endian.h [__USE_BSD]: Likewise.
	* string/string.h [__USE_SVID]: Likewise.
	[__USE_BSD]: Likewise.
	* string/strings.h [__USE_BSD]: Likewise.
	* sysdeps/generic/netinet/ip.h [__USE_BSD]: Likewise.
	* sysdeps/gnu/netinet/ip_icmp.h [__USE_BSD]: Likewise.
	* sysdeps/mach/hurd/bits/fcntl.h [__USE_BSD]: Likewise.
	* sysdeps/mach/hurd/bits/stat.h [__USE_BSD]: Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/mman.h [__USE_BSD]: Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/termios.h [__USE_BSD]:
	Likewise.
	* sysdeps/unix/sysv/linux/bits/fcntl-linux.h [__USE_BSD]:
	Likewise.
	* sysdeps/unix/sysv/linux/bits/mman-linux.h [__USE_BSD]: Likewise.
	* sysdeps/unix/sysv/linux/bits/sys_errlist.h [__USE_BSD]:
	Likewise.
	* sysdeps/unix/sysv/linux/bits/termios.h [__USE_BSD]: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/termios.h [__USE_BSD]:
	Likewise.
	* sysdeps/unix/sysv/linux/netinet/if_ether.h [__USE_BSD]:
	Likewise.
	* sysdeps/unix/sysv/linux/netinet/if_fddi.h [__USE_BSD]: Likewise.
	* sysdeps/unix/sysv/linux/netinet/if_tr.h [__USE_BSD]: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/bits/termios.h [__USE_BSD]:
	Likewise.
	* sysdeps/unix/sysv/linux/sparc/bits/termios.h [__USE_BSD]:
	Likewise.
	* sysdeps/x86/bits/string.h [__USE_BSD]: Likewise.
	* sysvipc/sys/ipc.h [__USE_SVID]: Likewise.
	* termios/termios.h [__USE_BSD]: Likewise.
	* time/sys/time.h [__USE_BSD]: Likewise.
	* time/time.h [__USE_BSD]: Likewise.
	[__USE_SVID]: Likewise.

	* sysdeps/unix/sysv/linux/hppa/bits/mman.h [__USE_BSD]: Change
	condition to [__USE_MISC].
2014-02-12 23:41:01 +00:00
Joseph Myers
ace614b8a5 soft-fp: support after-rounding tininess detection.
IEEE 754-2008 defines two ways in which tiny results can be detected,
"before rounding" (based on the infinite-precision result) and "after
rounding" (based on the result when rounded to normal precision as if
the exponent range were unbounded).  All binary operations on an
architecture must use the same choice of how tininess is detected.

soft-fp has so far implemented only before-rounding tininess
detection.  This patch adds support for after-rounding tininess
detection.  A new macro _FP_TININESS_AFTER_ROUNDING is added that
sfp-machine.h must define (soft-fp is meant to be self-contained so
the existing tininess.h files aren't used here, though the information
going in sfp-machine.h has been taken from them).  The soft-fp macros
dealing with raising underflow exceptions then handle the cases where
the choice matters specially, rounding a copy of the input to the
appropriate precision to see if a value that's tiny before rounding
isn't tiny after rounding.

Tested for mips64 using GCC trunk (which now uses soft-fp on MIPS, so
supporting exceptions and rounding modes for long double where not
previously supported - this is the immediate motivation for doing this
patch now) together with (a) a patch to sysdeps/mips/math-tests.h to
enable exceptions / rounding modes tests for long double for GCC 4.9
and later, and (b) corresponding changes applied to libgcc's soft-fp
and sfp-machine.h files.  In the libgcc context this is also tested on
x86_64 (also an after-rounding architecture) with testcases for
__float128 that I intend to add to the GCC testsuite when updating
soft-fp there.

(To be clear: this patch does not fix any glibc bugs that were
user-visible in past releases, since after-rounding architectures
didn't use soft-fp in any affected case with support for
floating-point exceptions - so there is no corresponding Bugzilla bug.
Rather, it works together with the GCC changes to use soft-fp on MIPS
to allow previously absent long double functionality to work properly,
and allows soft-fp to be used in glibc on after-rounding architectures
in cases where it couldn't previously be used.)

	* soft-fp/op-common.h (_FP_DECL): Mark exponent as possibly
	unused.
	(_FP_PACK_SEMIRAW): Determine tininess based on rounding shifted
	value if _FP_TININESS_AFTER_ROUNDING and unrounded value is in
	subnormal range.
	(_FP_PACK_CANONICAL): Determine tininess based on rounding to
	normal precision if _FP_TININESS_AFTER_ROUNDING and unrounded
	value has largest subnormal exponent.
	* soft-fp/soft-fp.h [FP_NO_EXCEPTIONS]
	(_FP_TININESS_AFTER_ROUNDING): Undefine and redefine to 0.
	* sysdeps/aarch64/soft-fp/sfp-machine.h
	(_FP_TININESS_AFTER_ROUNDING): New macro.
	* sysdeps/alpha/soft-fp/sfp-machine.h
	(_FP_TININESS_AFTER_ROUNDING): Likewise.
	* sysdeps/arm/soft-fp/sfp-machine.h (_FP_TININESS_AFTER_ROUNDING):
	Likewise.
	* sysdeps/mips/mips64/soft-fp/sfp-machine.h
	(_FP_TININESS_AFTER_ROUNDING): Likewise.
	* sysdeps/mips/soft-fp/sfp-machine.h
	(_FP_TININESS_AFTER_ROUNDING): Likewise.
	* sysdeps/powerpc/soft-fp/sfp-machine.h
	(_FP_TININESS_AFTER_ROUNDING): Likewise.
	* sysdeps/sh/soft-fp/sfp-machine.h (_FP_TININESS_AFTER_ROUNDING):
	Likewise.
	* sysdeps/sparc/sparc32/soft-fp/sfp-machine.h
	(_FP_TININESS_AFTER_ROUNDING): Likewise.
	* sysdeps/sparc/sparc64/soft-fp/sfp-machine.h
	(_FP_TININESS_AFTER_ROUNDING): Likewise.
	* sysdeps/tile/sfp-machine.h (_FP_TININESS_AFTER_ROUNDING):
	Likewise.
2014-02-12 18:27:12 +00:00
Dylan Alex Simon
fbfdf9cb03 Update x86_64 libm-test-ulps on AMD family 21h model 1 (bug 16545). 2014-02-12 15:55:10 +00:00
Richard Henderson
68b7efaadb Relocate alpha from ports to libc
Also fixed the following whitespace nits to satisfy the push:

sysdeps/alpha/alphaev6/memset.S:142: space before tab in indent.
sysdeps/alpha/configure:1: new blank line at EOF.
sysdeps/alpha/fpu/e_sqrt.c:126: space before tab in indent.
sysdeps/alpha/preconfigure:1: new blank line at EOF.
sysdeps/unix/sysv/linux/alpha/syscalls.list:1: new blank line at EOF.
2014-02-12 07:00:06 -08:00
Joseph Myers
e8d8d7ec98 Regenerate x86_64 ulps. 2014-02-11 23:15:36 +00:00
Joseph Myers
cb4a292812 Merge MIPS dl-lookup.c into generic file.
MIPS has its own version of dl-lookup.c to deal with differences
between undefined symbol semantics in the PIC and non-PIC ABIs.  This
is often liable to get out of date with respect to the generic file
(for example, the recent __builtin_expect changes didn't cover ports,
and it's not obvious to anyone changing dl-lookup.c that there would
be architecture-specific versions).

This patch adds a macro that dl-machine.h can define that is used in
the appropriate place in dl-lookup.c, so that MIPS no longer needs its
own version of that file.

Tested for mips64 that the only changes to disassembly of installed
shared libraries appear to be ld.so changes attributable to different
line numbers and paths in assertions.

	* elf/dl-lookup.c (ELF_MACHINE_SYM_NO_MATCH): Define if not
	already defined.
	(do_lookup_x): Use ELF_MACHINE_SYM_NO_MATCH.
	* sysdeps/mips/dl-lookup.c: Remove.
	* sysdeps/mips/dl-machine.h (ELF_MACHINE_SYM_NO_MATCH): New macro.
2014-02-11 22:33:07 +00:00
Andreas Krebbel
7e6424e343 BZ #16447: Fix ldbl-128 expl implementation.
Extend the range of numbers handled via unsafe mode.
Add expl testcase and regenerate ULPs for s390.
2014-02-11 13:47:47 +01:00
Marcus Shawcroft
75eff3fe90 Relocate AArch64 from ports to libc.
This patch moves the AArch64 port to the main sysdeps hierarchy.  The
move is essentially:

  git mv ports/sysdeps/aarch64 sysdeps/aarch64
  git mv ports/sysdeps/unix/sysv/linux/aarch64 sysdeps/unix/sysv/linux/aarch64

The README is updated and I've updated ChangeLog.aarch64 along the
lines of the ARM move.  The AArch64 build has been tested to confirm
that there were no changes in objdump -dr output or the shared
objects.
2014-02-11 11:36:00 +00:00
Joseph Myers
43bb7f07a0 Fix whitespace in MIPS files to allow move. 2014-02-10 23:31:30 +00:00
Joseph Myers
2ad7600be7 Move mips from ports to libc.
I've moved the MIPS port from ports to the main sysdeps hierarchy.
Beyond the README update, the move of the files was simply

git mv ports/sysdeps/mips sysdeps/mips
git mv ports/sysdeps/unix/mips sysdeps/unix/mips
git mv ports/sysdeps/unix/sysv/linux/mips sysdeps/unix/sysv/linux/mips

and in addition to the ChangeLog entries here, I put a note at the top
of ports/ChangeLog.mips similar to those in other files.

Tested that disassembly of installed shared libraries for mips is the
same before and after this patch (except for ld.so where paths in
assertions are involved, as for arm).

	* sysdeps/mips: Move directory from ports/sysdeps/mips.
	* sysdeps/unix/mips: Move directory from ports/sysdeps/unix/mips.
	* sysdeps/unix/sysv/linux/mips: Move directory from
	ports/sysdeps/unix/sysv/linux/mips.
	* README: Update listing for mips-*-linux-gnu and
	mips64-*-linux-gnu.

	* sysdeps/mips: Move directory to ../sysdeps/mips.
	* sysdeps/unix/mips: Move directory to ../sysdeps/unix/mips.
	* sysdeps/unix/sysv/linux/mips: Move directory to
	../sysdeps/unix/sysv/linux/mips.
2014-02-10 23:30:21 +00:00
Andreas Schwab
3d15ff74fa Whitespace fixes 2014-02-10 20:24:03 +01:00
Andreas Schwab
73588a7223 Move m68k from ports to libc 2014-02-10 20:22:40 +01:00
Chris Metcalf
4372980f58 Move tilegx, tilepro, and linux-generic from ports to libc.
I've moved the TILE-Gx and TILEPro ports to the main sysdeps hierarchy,
along with the linux-generic ports infrastructure.  Beyond the README
update, the move was just

    git mv ports/sysdeps/tile sysdeps/tile
    git mv ports/sysdeps/unix/sysv/linux/tile \
      sysdeps/unix/sysv/linux/tile
    git mv ports/sysdeps/unix/sysv/linux/generic \
      sysdeps/unix/sysv/linux/generic

I updated the relevant ChangeLogs along the lines of the ARM move
in commit c6bfe5c4d7 and tested the 64-bit tilegx build to confirm that
there were no changes in "objdump -dr" output in the shared objects.
2014-02-10 11:04:39 -05:00
Ondřej Bílka
a1ffb40e32 Use glibc_likely instead __builtin_expect. 2014-02-10 15:07:12 +01:00
Mike Frysinger
d674667cba shm_open: sync with logic in sem_open
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2014-02-08 08:17:16 -05:00
Mike Frysinger
7c70f2272e linux: bits/in.h: sync with latest kernel headers
This pulls in the latest defines for {g,s}etsockopt.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2014-02-08 06:49:56 -05:00
Mike Frysinger
8da79b60ae linux_fsinfo.h: sync with current linux/magic.h
Import the current list of defines available in the kernel headers.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2014-02-08 06:39:10 -05:00
Joseph Myers
4ac049e1c9 Fix whitespace in ARM files to allow move. 2014-02-08 01:52:38 +00:00
Joseph Myers
c6bfe5c4d7 Move arm from ports to libc.
I've moved the ARM port from ports to the main sysdeps hierarchy.
Beyond the README update, the move of the files was simply

git mv ports/sysdeps/arm sysdeps/arm
git mv ports/sysdeps/unix/arm sysdeps/unix/arm
git mv ports/sysdeps/unix/sysv/linux/arm sysdeps/unix/sysv/linux/arm

and in addition to the ChangeLog entries here, I put a note at the top
of ports/ChangeLog.arm similar to that at the top of
ChangeLog.powerpc.  There is deliberately no NEWS change, as I think
it makes the most sense to put in a general note above all ports
having moved if we can achieve that for 2.20.

Tested that disassembly of installed shared libraries for arm is the
same before and after this patch, except for data (not instructions)
in ld.so (there are assertions in sysdeps/arm/dl-machine.h, and the
path by which that file is found, and so by which it appears in the
assertion message, changes as a result of the move).

	* sysdeps/arm: Move directory from ports/sysdeps/arm.
	* sysdeps/unix/arm: Move directory from ports/sysdeps/unix/arm.
	* sysdeps/unix/sysv/linux/arm: Move directory from
	ports/sysdeps/unix/sysv/linux/arm.
	* README: Update listing for arm-*-linux-gnueabi.

ports/ChangeLog.arm:
	* sysdeps/arm: Move directory to ../sysdeps/arm.
	* sysdeps/unix/arm: Move directory to ../sysdeps.arm.
	* sysdeps/unix/sysv/linux/arm: Move directory to
	../sysdeps/unix/sysv/linux/arm.
2014-02-08 01:49:39 +00:00
Roland McGrath
32749f6cd2 Avoid comma operator warnings. 2014-02-07 15:26:28 -08:00
Allan McRae
bf06bcee84 Revert "Patch [1/4] async-signal safe TLS."
This reverts commit 69a17d9d24.
2014-02-06 08:46:20 +10:00
Allan McRae
8b6785f083 Revert "Patch 3/4 of the effort to make TLS access async-signal-safe."
This reverts commit 35e8f7ab94.
2014-02-06 08:46:20 +10:00
Allan McRae
dd654bf9ba Revert "Patch 2/4 of the effort to make TLS access async-signal-safe."
This reverts commit 1f33d36a8a.

Conflicts:
	elf/dl-misc.c

Also reverts the follow commits that were bug fixes to new code introduced
in the above commit:
063b2acbce
b627fdd585
e81c64bba1
2014-02-06 08:46:20 +10:00
Carlos O'Donell
27e839f6f0 Fix comment in kernel-features.h.
Use "was" not "were."
2014-02-05 10:33:42 -05:00
Carlos O'Donell
f877c4f2bf Fix tst-setgetname for Linux kernels < 2.6.33.
Support for /proc/self/task/$tid/comm as added in Linux 2.6.33,
therefore since the test tst-setgetname relies on this functionality
to operate we must skip the test in kernels < 2.6.33. We wrap the
checks with __ASSUME_PROC_PID_TASK_COMM such that in the future when
we move arch_minimum_kernel to 2.6.33 we can remove this code.
2014-02-05 10:13:11 -05:00
David S. Miller
ae2f53e1eb Adjust sparc ULPs.
* sysdeps/sparc/fpu/libm-test-ulps: Update for some 64-bit differences from
	32-bit.
2014-02-04 20:54:58 -08:00
Adhemerval Zanella
c01603f763 PowerPC: powerpc64le abilist for 2.17
This patch is the abifiles for powerpc64le based on GLIBC 2.17.
2014-02-04 09:49:34 -02:00
Adhemerval Zanella
1695c77376 abilist-pattern configurability
This patch creates implicit rules to match the abifiles if
abilist-pattern is defined in the architecture Makefile. This allows
machine specific Makefiles to define different abifiles names
(for instance *-le.abilist for powerpc64le).
2014-02-04 09:48:47 -02:00
Eric Wong
dc98b8f5a9 Update x86_64 ULPs (AMD family 21, model 2)
Tested on an AMD FX-8320 CPU
2014-02-04 10:40:56 +10:00
Eric Wong
6c0ce4b45d Update x86_64 ULPs (AMD Family 10h) 2014-02-04 10:40:44 +10:00
H.J. Lu
409e00bd69 Disable x87 inline functions for SSE2 math
When i386 and x86-64 mathinline.h was merged into a single mathinline.h,
"gcc -m32" enables x87 inline functions on x86-64 even when -mfpmath=sse
and SSE2 is enabled.  It is a regression on x86-64.  We should check
__SSE2_MATH__ instead of __x86_64__ when disabling x87 inline functions.
2014-01-29 11:19:05 -08:00
Kaz Kojima
feab239727 Add -mieee to SH sysdep-CFLAGS for older SH compilers. 2014-01-28 09:03:14 +09:00
Kaz Kojima
7d69a1b092 Regenerate SH libm-test-ulps with proper compiler options. 2014-01-27 08:50:47 +09:00
David S. Miller
6e697ff746 Rebuild sparc ULPs.
* sysdeps/sparc/fpu/libm-test-ulps: Regenerate.
2014-01-24 18:32:53 -08:00
Kaz Kojima
9cadb35cbb Move SH libm-test-ulps to sysdeps/sh and regenerate it. 2014-01-25 10:22:14 +09:00
Kaz Kojima
0bad441c77 Restore ucontext ABI for soft-float sh4. 2014-01-24 12:56:12 +09:00
Kaz Kojima
7007c661ad Adjust SH specific fpu_control.h and ucontext.h files. 2014-01-23 14:22:58 +09:00
Andreas Krebbel
0f0c35e46e S/390: Merge 32 and 64 bit ucontext.h. 2014-01-22 18:44:35 +01:00
H.J. Lu
4959e284ca Include generic symbol-hacks.h for x32
In BZ #15605 fix with addding memset/memmove alias in symbol-hacks.h,
x32 symbol-hacks.h change was missing.  Fixed by including
<sysdeps/generic/symbol-hacks.h> in x32 symbol-hacks.h.
2014-01-20 11:11:01 -08:00
Adhemerval Zanella
d98720e07f PowerPC: Fix gettimeofday ifunc selection
The IFUNC selector for gettimeofday runs before _libc_vdso_platform_setup where
__vdso_gettimeofday is set. The selector then sets __gettimeofday (the internal
version used within GLIBC) to use the system call version instead of the vDSO one.
This patch changes the check if vDSO is available to get its value directly
instead of rely on __vdso_gettimeofday.

This patch changes it by getting the vDSO value directly.

It fixes BZ#16431.
2014-01-20 12:29:51 -06:00
Mike Frysinger
7a02cfade8 s390: implement sotruss support
See commit 41b1792698 for testcase.

Note: while this works on s390x, the s390 code hangs when using -e.
But it hangs regardless of this code (the hang seems to occur before
the exit func is even called).  I didn't look too closely at it as
it seems to be an issue external to this file, so this code shouldn't
make the situation any worse.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2014-01-16 15:10:14 -05:00
Adhemerval Zanella
736c304a1a PowerPC: Fix ftime gettimeofday internal call returning bogus data
This patches fixes BZ#16430 by setting a different symbol for internal
GLIBC calls that points to ifunc resolvers. For PPC32, if the symbol
is defined as hidden (which is the case for gettimeofday and time) the
compiler will create local branches (symbol@local) and linker will not
create PLT calls (required for IFUNC). This will leads to internal symbol
calling the IFUNC resolver instead of the resolved symbol.
For PPC64 this behavior does not occur because a call to a function in
another translation unit might use a different toc pointer thus requiring
a PLT call.
2014-01-16 06:53:18 -06:00
Adhemerval Zanella
2393fc0119 PowerPC: sotruss-lib implementation
This patch add the missing sotruss-lib interfaces for PowerPC.
2014-01-15 12:14:06 -06:00
Ondřej Bílka
c4dd57c300 Do not enable asynchronous cancellation in system. Fixes bug 14782.
We needlessly enabled thread cancellation before it was necessary. As
only call that needs to be guarded is waitpid which is cancellation
point we could remove cancellation altogether.
2014-01-15 18:39:21 +01:00
Andreas Krebbel
7beb48cbb7 [BZ #16427] Fix ldbl-128 exp overflows.
Invoke the non-IEEE handling only for numbers special also in the IEEE
case.  This aligns the exp handling with the other ldbl variants.
2014-01-15 09:50:31 +01:00
Andreas Krebbel
c20d5bf509 S/390: Regenerate ULPs. 2014-01-15 09:49:54 +01:00
Roland McGrath
bc2ba20ae8 ARM: Disable compat mcount code when unneeded. 2014-01-10 13:32:35 -08:00
Yuriy Kaminskiy
66671c84d5 Fix a thinko/typo in i686's memmove (aka __memmove_ia32).
* sysdeps/i386/i686/memmove.S (memmove): Compare distance between
	SRC and DEST against LEN.
2014-01-09 09:49:54 +13:00
Adhemerval Zanella
38f3458175 PowerPC: remove wrong truncl implementation for PowerPC64
The truncl assembly implementation (sysdeps/powerpc/powerpc64/fpu/s_truncl.S)
returns wrong results for some inputs where first double is a exact integer
and the precision is determined by second long double.

Checking on implementation comments and history, I am very confident the
assembly implementation was based on a version before commit
5c68d40169 that fixes BZ#2423 (Errors in
long double (ldbl-128ibm) rounding functions in glibc-2.4).

By just removing the implementation and make the build select
sysdeps/ieee754/ldbl-128ibm/s_truncl.c instead it fixes tgammal
issues regarding wrong result sign.
2014-01-08 08:14:48 -06:00
Adhemerval Zanella
3ff6304ee7 Update powerpc-fpu ULPs. 2014-01-08 07:55:08 -06:00
Joseph Myers
4c327f2ad8 Fix ldbl-128ibm expm1l on large arguments (bug 16408).
This patch fixes bug 16408, ldbl-128ibm expm1l returning NaN for some
large arguments.

The basic problem is that the approach of converting the exponent to
the form n * log(2) + y, where -0.5 <= y <= 0.5, then computing 2^n *
expm1(y) + (2^n - 1) falls over when 2^n overflows (starting slightly
before the point where expm1 overflows, when y is negative and n is
the least integer for which 2^n overflows).  The ldbl-128 code, and
the x86/x86_64 code, make expm1l fall back to expl for large positive
arguments to avoid this issue.  This patch makes the ldbl-128ibm code
do the same.  (The problem appears for the particular argument in the
testsuite because the ldbl-128ibm code also uses an overflow threshold
that's for ldbl-128 and is too big for ldbl-128ibm, but the problem
described applies for large non-overflowing cases as well, although
during the freeze is not a suitable time for making the expm1 tests
cover cases close to overflow more thoroughly.)

This leaves some code for large positive arguments in expm1l that is
now dead.  To keep the code for ldbl-128 and ldbl-128ibm similar, and
to avoid unnecessary changes during the freeze, the patch doesn't
remove it; instead I propose to file a bug in Bugzilla as a reminder
that this code (for overflow, including errno setting, and for
arguments of +Inf) is no longer needed and should be removed from both
those expm1l implementations.

Tested powerpc32.

	* sysdeps/ieee754/ldbl-128ibm/s_expm1l.c (__expm1l): Use __expl
	for large positive arguments.
2014-01-08 13:32:39 +00:00
Joseph Myers
1f0f206719 Regenerate powerpc-nofpu ulps (again). 2014-01-07 23:32:04 +00:00
Joseph Myers
b821f414e4 Fix ldbl-128ibm coshl spurious overflows (bug 16407).
This patch fixes bug 16407, spurious overflows from ldbl-128ibm coshl.
The implementation assumed that a high part (reinterpreted as an
integer) of the absolute value of the argument of 0x408633ce8fb9f87dLL
or more meant overflow, but the actual threshold has high part
0x408633ce8fb9f87eLL (and a negative low part).  The patch adjusts the
threshold accordingly.

sinhl probably has the same issue, but I didn't get that far in adding
tests of special cases (such as just below and above overflow) before
the freeze and during the freeze is not a suitable time to add them
(as they'd require ulps to be regenerated again), so I'm not changing
that function for now; when I add more tests of special cases, we'll
discover whether sinhl indeed has this problem.

Tested powerpc32.

	* sysdeps/ieee754/ldbl-128ibm/e_coshl.c (__ieee754_coshl):
	Increase overflow threshold.
2014-01-07 22:00:04 +00:00
Andreas Krebbel
87ded0c382 S/390: Remove __tls_get_addr argument cast. 2014-01-07 09:42:23 +01:00
Andreas Krebbel
c5eebdd084 S/390: Get rid of unused variable warning in dl-machine.h 2014-01-07 09:42:23 +01:00
Andreas Krebbel
05d138ef07 S/390: Make ucontext_t extendible. 2014-01-07 09:42:23 +01:00
Andreas Krebbel
93a45ff1ca S/390: Make jmp_buf extendible. 2014-01-07 09:36:31 +01:00
Joseph Myers
eb3fc44b56 Fix ldbl-128 / ldbl-128ibm lgammal spurious underflow (bug 16400).
This patch fixes bug 16400, spurious underflow exceptions for ldbl-128
/ ldbl-128ibm lgammal with small positive arguments, by just using
-__logl (x) as the result in the problem cases (similar to the
previous fix for problems with small negative arguments).

Tested powerpc32, and also tested on mips64 that this does not require
ulps regeneration for the ldbl-128 case.

	* sysdeps/ieee754/ldbl-128/e_lgammal_r.c (__ieee754_lgammal_r):
	Return -__logl (x) for small positive arguments without evaluating
	a polynomial.
2014-01-06 18:20:20 +00:00
Mike Frysinger
9341dde4d5 ptrace.h: add __ prefix to ptrace_peeksiginfo_args
All the other ptrace structures in this file have a __ prefix except this
new one.  This in turn causes build problems for most packages that try to
use ptrace such as strace:

gcc -DHAVE_CONFIG_H -I. -I../..  -I../../linux/x86_64 -I../../linux \
	-I./linux  -Wall -Wwrite-strings -g -O2 -MT process.o -MD -MP \
	-MF .deps/process.Tpo -c -o process.o ../../process.c
In file included from ../../process.c:63:0:
/usr/include/linux/ptrace.h:58:8: error: redefinition of 'struct ptrace_peeksiginfo_args'
 struct ptrace_peeksiginfo_args {
        ^
In file included from ../../defs.h:159:0,
                 from ../../process.c:37:
/usr/include/sys/ptrace.h:191:8: note: originally defined here
 struct ptrace_peeksiginfo_args
        ^

Since this struct was introduced in glibc-2.18, there shouldn't be any
real regressions with adding the __ prefix.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2014-01-06 08:07:33 -05:00
Andreas Jaeger
75595dcf8a Update ULPs for i386
Update based on testing with GCC 4.8.1 on Intel i7
2014-01-05 21:48:54 +01:00
Mike Frysinger
20f4a8d993 tst-fanotify: switch to AC_DEFINE
Reported-by: Joseph S. Myers <joseph@codesourcery.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2014-01-04 08:34:01 -05:00
Joseph Myers
22562bb222 Fix soft-float ldbl-128ibm atan2l signs of zero results (bug 16390).
This patch fixes bug 16390, incorrect signs of zero results from
ldbl-128ibm atan2l, soft-float only.  The problem is a longstanding
GCC bug with fabsl not being correct for signed zero for soft float,
and the fix is using -fno-builtin-fabsl as a workaround, as already
done for various other source files.  Tested powerpc-nofpu.

	* sysdeps/powerpc/nofpu/Makefile [$(subdir) = math]
	(CFLAGS-e_atan2l.c): Use -fno-builtin-fabsl.
2014-01-03 20:56:40 +00:00
Adhemerval Zanella
d7ad2d9bad PowerPC: Fix compiler warnings
This patch fixes some compile warnings related to extra tokens at
end of #undef directive from multilib patchset.
2014-01-03 13:29:10 -06:00
Joseph Myers
24db925aa7 Regenerate powerpc-nofpu ulps. 2014-01-03 18:09:05 +00:00
Joseph Myers
819e5d50dd Fix ldbl-128ibm logl inaccuracy (bug 16386).
This patch fixes bug 16386, ldbl-128ibm logl inaccuracy (with
consequent inaccuracy for lgammal) for arguments where the high double
is subnormal, which showed up while attempting to regenerate ulps for
powerpc-nofpu for 2.19.  The problem here is logic failing to allow
for subnormals when calculating the exponent of the argument.  Tested
for powerpc-nofpu.

	* sysdeps/ieee754/ldbl-128ibm/e_logl.c (__ieee754_logl): Adjust
	numbers with subnormal high part when calculating exponent.
2014-01-02 16:35:46 +00:00
Joseph Myers
90b6a1e55f Fix ldbl-128ibm asinhl inaccuracy (bug 16385).
This patch fixes bug 16385, ldbl-128ibm asinhl inaccuracy, which
showed up while attempting to regenerate ulps for powerpc-nofpu for
2.19.  The problem here was use of fabs instead of fabsl meaning large
arguments were reduced to the precision of double.  Tested for
powerpc-nofpu.

	* sysdeps/ieee754/ldbl-128ibm/s_asinhl.c (__asinhl): Use fabsl not
	fabs.
2014-01-02 16:34:24 +00:00
Joseph Myers
396e3ecf3e Fix ldbl-128ibm acoshl inaccuracy (bug 16384).
This patch fixes bug 16384, ldbl-128ibm acoshl inaccuracy, which
showed up while attempting to regenerate ulps for powerpc-nofpu for
2.19.  There were two separate problems, use of __log1p instead of
__log1pl and an insufficiently accurate constant value for log 2
(which this patch replaces by use of M_LN2l), each of which could
cause substantial inaccuracy in affected cases.

Tested for powerpc-nofpu.

	* sysdeps/ieee754/ldbl-128ibm/e_acoshl.c (ln2): Initialize with
	M_LN2l.
	(__ieee754_acoshl): Use __log1pl not __log1p.
2014-01-02 16:33:06 +00:00
Joseph Myers
97b9a0090e Regenerate x86 / x86_64 ulps. 2014-01-01 14:34:38 +00:00
Allan McRae
d4697bc93d Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
Mike Frysinger
c8590f9d9e tst-fanotify: check for linux/fanotify.h existence
We support older kernels that lack this header, so check for it
before we try to use it.

Reported-by: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2013-12-31 03:16:42 -05:00
Allan McRae
6c9642eda6 Fix typo in csloww()
An incorrect variable name was used during the refactoring done in
commit 4aafb73c.
2013-12-27 12:29:38 +10:00
Adhemerval Zanella
fb55fcd21a Update powerpc-fpu ULPs. 2013-12-23 09:04:18 -05:00
Joseph Myers
4f40e4b307 Fix ldbl-128 lgammal for small negative arguments (bug 16337).
This patch fixes bug 16337, ldbl-128 lgammal spurious overflows for
small negative arguments (the arguments in question are already in the
testsuite).  The implementation uses the reflection formula to compute
lgamma of negative x from lgamma of -x, effectively resulting in a
calculation -log(x^2) + log(-x); cancellation isn't problematic in
this case (bugs for problematic cancellation in lgamma are 2542, 2543,
2558), but the x^2 calculation can underflow (in which case there is
spurious logic to return an overflowing value - lgamma can only ever
correctly overflow for large positive arguments, though tgamma can
overflow for small arguments of either sign as well as large positive
arguments).  The fix is simply to calculate the result directly with
logl when the argument is a small enough negative number.

Tested mips64.

	* sysdeps/ieee754/ldbl-128/e_lgammal_r.c (__ieee754_lgammal_r):
	Calculate results for small negative arguments directly rather
	than using reflection formula with special underflow handling.
2013-12-22 20:50:16 +00:00
Joseph Myers
ef7344f09c Flatten sysdeps/unix/bsd/bsd4.4 into sysdeps/unix/bsd.
As discussed in
<https://sourceware.org/ml/libc-alpha/2012-04/msg00840.html> and
<https://sourceware.org/ml/libc-alpha/2012-04/msg00989.html>, it seems
appropriate to flatten sysdeps/unix/bsd/bsd4.4 into sysdeps/unix/bsd.

The bulk of the patch is just moving files.  The only other changes
are: update paths in sysdeps/mach/hurd/Implies and
sysdeps/unix/sysv/linux/wait3.c; merge the two syscalls.list files,
with the removal of syscalls that were in
sysdeps/unix/bsd/syscalls.list but overridden in the bsd4.4 directory
by .c files there.

Tested x86_64.  The installed shared libraries are identical before
and after the patch except for libc.so where the move of wait3.c
(included by sysdeps/unix/sysv/linux/wait3.c) affects debug info, but
the disassembly is unchanged.

	* sysdeps/mach/hurd/Implies: Change unix/bsd/bsd4.4 to unix/bsd.
	* sysdeps/unix/bsd/syscalls.list (chflags): Add entry from
	sysdeps/unix/bsd/bsd4.4/syscalls.list.
	(fchflags): Likewise.
	(revoke): Likewise.
	(setlogin): Likewise.
	(sigaltstack): Likewise.
	(wait4): Likewise.
	(sigblock): Remove.
	(sigsetmask): Likewise.
	(wait3): Likewise.
	(waitpid): Likewise.
	* sysdeps/unix/bsd/bsd4.4/syscalls.list: Remove file.
	* sysdeps/unix/sysv/linux/wait3.c: Update directory of included
	file.
	* sysdeps/unix/bsd/bsd4.4/Makefile: Move to ...
	* sysdeps/unix/bsd/Makefile: ... here.
	* sysdeps/unix/bsd/bsd4.4/Versions: Move to ...
	* sysdeps/unix/bsd/Versions: ... here.
	* sysdeps/unix/bsd/bsd4.4/bits/sockaddr.h: Move to ...
	* sysdeps/unix/bsd/bits/sockaddr.h: ... here.
	* sysdeps/unix/bsd/bsd4.4/cmsg_nxthdr.c: Move to ...
	* sysdeps/unix/bsd/cmsg_nxthdr.c: ... here.
	* sysdeps/unix/bsd/bsd4.4/sigblock.c: Move to ...
	* sysdeps/unix/bsd/sigblock.c: ... here.
	* sysdeps/unix/bsd/bsd4.4/sigsetmask.c: Move to ...
	* sysdeps/unix/bsd/sigsetmask.c: ... here.
	* sysdeps/unix/bsd/bsd4.4/sigvec.c: Move to ...
	* sysdeps/unix/bsd/sigvec.c: ... here.
	* sysdeps/unix/bsd/bsd4.4/tcdrain.c: Move to ...
	* sysdeps/unix/bsd/tcdrain.c: ... here.
	* sysdeps/unix/bsd/bsd4.4/tcgetattr.c: Move to ...
	* sysdeps/unix/bsd/tcgetattr.c: ... here.
	* sysdeps/unix/bsd/bsd4.4/tcsetattr.c: Move to ...
	* sysdeps/unix/bsd/tcsetattr.c: ... here.
	* sysdeps/unix/bsd/bsd4.4/wait.c: Move to ...
	* sysdeps/unix/bsd/wait.c: ... here.
	* sysdeps/unix/bsd/bsd4.4/wait3.c: Move to ...
	* sysdeps/unix/bsd/wait3.c: ... here.
	* sysdeps/unix/bsd/bsd4.4/waitpid.c: Move to ...
	* sysdeps/unix/bsd/waitpid.c: ... here.
2013-12-22 14:49:48 +00:00
Joseph Myers
5b0626b9c5 Fix x86 / x86_64 expl / expl10l wild results in directed rounding modes (bug 16356).
This patch fixes bug 16356, bad results from x86 / x86_64 expl /
exp10l in directed rounding modes, the most serious of the bugs shown
up by my patch expanding libm test coverage.  When I fixed bug 16293,
I thought it was only necessary to set round-to-nearest when using
frndint in expm1 functions, because in other cases the cancellation
error from having the resulting fractional part close to 1 or -1 would
not be significant.  However, in expl and exp10l, the way the final
fractional part gets computed (something more complicated than a
simple subtraction, because more precision is needed than you'd get
that way) can result in a value outside the range [-1, 1] when the
argument to frndint was very close to an integer and was rounded the
"wrong" way because of the rounding mode - and the f2xm1 instruction
has undefined results if its argument is outside [-1, 1], so resulting
in the large errors seen.  So this patch removes the USE_AS_EXPM1L
conditionals on the round-to-nearest settings, so all of expl, expm1l
and exp10l now get round-to-nearest used for frndint (meaning the
final fractional part can at most be slightly above 0.5 in
magnitude).  Associated tests of exp and exp10 are added and testing
of exp10 in directed rounding modes enabled.

Tested x86_64 and x86 and ulps updated accordingly.

	* sysdeps/i386/fpu/e_expl.S (IEEE754_EXPL): Also set
	round-to-nearest for [!USE_AS_EXPM1L].
	* sysdeps/x86_64/fpu/e_expl.S (IEEE754_EXPL): Likewise.
	* math/auto-libm-test-in: Do not expect cosh tests to fail.  Add
	more tests of exp and exp10.  Expect some exp10 tests to miss
	exceptions or fail in directed rounding modes.
	* math/auto-libm-test-out: Regenerated.
	* math/libm-test.inc (exp10_tonearest_test_data): New array.
	(exp10_test_tonearest): New function.
	(exp10_towardzero_test_data): New array.
	(exp10_test_towardzero): New function.
	(exp10_downward_test_data): New array.
	(exp10_test_downward): New function.
	(exp10_upward_test_data): New array.
	(exp10_test_upward): New function.
	(main): Call the new functions.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
	* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2013-12-21 13:07:16 +00:00
Joseph Myers
31e3a40588 Add more libm-test coverage of [a-c]* real functions.
Various libm functions have inadequate test coverage in libm-test.inc
/ auto-libm-test-in - failing to cover all the usual special cases
(infinities, NaNs, zero, large and small finite values, subnormals) as
well as a reasonable range of ordinary inputs and, where appropriate,
inputs close to the thresholds for underflow and overflow.

This patch improves test coverage for real functions [a-c]* (with the
expectation of adding more coverage for other functions later).

Tested x86_64 and x86 and ulps updated accordingly (and eight glibc
bugs and one C11 DR filed for issues found in the process).

	* math/auto-libm-test-in: Add more tests of acos, acosh, asin,
	asinh, atan, atan2, atanh, cbrt, cos and cosh.
	* math/auto-libm-test-out: Regenerated.
	* math/libm-test.inc (acosh_test_data): Add more tests.
	(atanh_test_data): Likewise.
	(ceil_test_data): Likewise.
	(copysign_test_data): Likewise.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
	* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2013-12-20 21:03:39 +00:00
Joseph Myers
b7867a3bfb Move tests of cpow from libm-test.inc to auto-libm-test-in.
This patch moves tests of cpow to auto-libm-test-in, adding the
required support to gen-auto-libm-tests.

Tested x86_64 and x86 and ulps updated accordingly.

	* math/auto-libm-test-in: Add tests of cpow.
	* math/auto-libm-test-out: Regenerated.
	* math/libm-test.inc (cpow_test_data): Use AUTO_TESTS_cc_c.
	* * math/gen-auto-libm-tests.c (func_calc_method): Add value
	mpc_cc_c.
	(func_calc_desc): Add mpc_cc_c union field.
	(test_functions): Add cpow.
	(special_fill_2pi): New function.
	(special_real_inputs): Add 2pi.
	(calc_generic_results): Handle mpc_cc_c.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
	* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2013-12-20 12:35:10 +00:00
Joseph Myers
7fda568229 Move various TEST_c_c tests from libm-test.inc to auto-libm-test-inc.
This patch moves tests of ccos, ccosh, cexp, clog, csqrt, ctan and
ctanh to auto-libm-test-in, adding the required support to
gen-auto-libm-tests.  Other TEST_c_c functions aren't moved for now
(although the relevant table entries are put in gen-auto-libm-tests
for it to know how to handle them): clog10 because of a known MPC bug
causing it to hang for at least some pure imaginary inputs (fixed in
SVN, but I'd rather not rely on unreleased versions of MPFR or MPC
even if relying on very recent releases); the inverse trig and
hyperbolic functions because of known slowness in special cases; and
csin / csinh because of observed slowness that I need to investigate
and report to the MPC maintainers.  Slowness can be bypassed by moving
to incremental generation (only for new / changed tests) rather than
regenerating the whole of auto-libm-test-out every time, but that
needs implementing.  (This patch takes the time for running
gen-auto-libm-tests from about one second to seven, on my system,
which I think is reasonable.  The slow functions would make it take
several minutes at least, which seems unreasonable.)

Tested x86_64 and x86 and ulps updated accordingly.

	* math/auto-libm-test-in: Add tests of ccos, ccosh, cexp, clog,
	csqrt, ctan and ctanh.
	* math/auto-libm-test-out: Regenerated.
	* math/libm-test.inc (TEST_COND_x86_64): New macro.
	(TEST_COND_x86): Likewise.
	(ccos_test_data): Use AUTO_TESTS_c_c.
	(ccosh_test_data): Likewise.
	(cexp_test_data): Likewise.
	(clog_test_data): Likewise.
	(csqrt_test_data): Likewise.
	(ctan_test_data): Likewise.
	(ctan_tonearest_test_data): Likewise.
	(ctan_towardzero_test_data): Likewise.
	(ctan_downward_test_data): Likewise.
	(ctan_upward_test_data): Likewise.
	(ctanh_test_data): Likewise.
	(ctanh_tonearest_test_data): Likewise.
	(ctanh_towardzero_test_data): Likewise.
	(ctanh_downward_test_data): Likewise.
	(ctanh_upward_test_data): Likewise.
	* math/gen-auto-libm-tests.c (func_calc_method): Add value
	mpc_c_c.
	(func_calc_desc): Add mpc_c_c union field.
	(FUNC_mpc_c_c): New macro.
	(test_functions): Add cacos, cacosh, casin, casinh, catan, catanh,
	ccos, ccosh, cexp, clog, clog10, csin, csinh, csqrt, ctan and
	ctanh.
	(special_fill_min_subnorm_p120): New function.
	(special_real_inputs): Add min_subnorm_p120.
	(calc_generic_results): Handle mpc_c_c.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
	* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2013-12-20 12:32:44 +00:00
Siddhesh Poyarekar
392dd2de03 Consolidate code to compute sin and cos from lookup tables
This patch consolidates the multiple copies of code that looks up sin
and cos of a number from the lookup table and computes the final
value, into static functions.  This does not have a noticeable
performance impact since the functions are inlined by gcc.

There is further scope for consolidation in the functions but they
cause a more noticable impact on performance (>5%) due to which I have
held back on them.
2013-12-20 16:01:03 +05:30
Siddhesh Poyarekar
84ba214c21 Remove more redundant computations in s_sin.c
Removed more redundant computations in the slow paths of the sin and
cos functions.  The notable change is the passing of the most
significant bits of X to the slow functions to check if X is positive
so that just the absolute value of x can be passed and the repeated
ABS() operation is avoided.
2013-12-20 15:58:19 +05:30
Siddhesh Poyarekar
975195e466 Remove redundant arguments in reduce_and_compute
The A and DA arguments in reduce_and_compute are useless and hence
have been removed.
2013-12-20 15:56:21 +05:30
Siddhesh Poyarekar
5ff8d60ef3 Remove some redundant computations in s_sin.c
There are multiple points in the code where the absolute value of a
number is computed multiple times or is computed even though the value
can only be positive.  This change removes those redundant
computations.  Tested on x86_64 to verify that there were no
regressions in the testsuite.
2013-12-20 15:55:34 +05:30
Joseph Myers
eb98356875 Don't make soft-fp symbols compat symbols for powerpc-nofpu.
sysdeps/powerpc/powerpc32/libgcc-compat.S makes certain symbols that
glibc once accidentally reexported from libgcc into compat symbols.

Where the exports were purely accidental, this is the right thing to
do.  However, for powerpc-nofpu the soft-fp symbols are deliberately
exported from libc, given public versions in
sysdeps/powerpc/nofpu/Versions and used by libm in preference to the
libgcc versions that do not support the software exceptions and
rounding modes.  The libc versions should also be usable by user
programs, though normally libgcc gets linked in first (meaning,
effectively, that the <fenv.h> functions are broken as regards their
expected effects on user arithmetic).

A longstanding todo item is to remove the functions in question from
libgcc (when built with recent enough glibc) - that is, remove them
from static libgcc and make them compat symbols in shared libgcc - so
that this works properly (this is one of the items mentioned at
<http://gcc.gnu.org/wiki/Software_floating_point> - parts of that page
are obviously out of date, but this item still applies).  Doing this
requires first that the functions are actually available from libc for
new links, not just as compat symbols.

This patch stops the symbols in question being compat symbols for
powerpc-nofpu.  The nofpu Versions entries for them are removed (the
symbols never were exported at GLIBC_2.3.2, only GLIBC_2.0, because
the compat symbols took precedence).

Tested powerpc-nofpu.  The symbols are no longer compat symbols and
libm.so now properly gets undefined references to them (resolved to
libc.so) instead of the libgcc copies getting linked into libm as
before.

	* sysdeps/powerpc/powerpc32/libgcc-compat.S
	[_SOFT_FLOAT || __NO_FPRS__] (__fixdfdi_v_glibc20): Do not define
	as a macro and a compat symbol.
	[_SOFT_FLOAT || __NO_FPRS__] (__fixsfdi_v_glibc20): Likewise.
	[_SOFT_FLOAT || __NO_FPRS__] (__fixunsdfdi_v_glibc20): Likewise.
	[_SOFT_FLOAT || __NO_FPRS__] (__fixunssfdi_v_glibc20): Likewise.
	[_SOFT_FLOAT || __NO_FPRS__] (__floatdidf_v_glibc20): Likewise.
	[_SOFT_FLOAT || __NO_FPRS__] (__floaddisf_v_glibc20): Likewise.
	[HAVE_DOT_HIDDEN && (_SOFT_FLOAT || __NO_FPRS__)] (__fixdfdi): Do
	not use .hidden.
	[HAVE_DOT_HIDDEN && (_SOFT_FLOAT || __NO_FPRS__)] (__fixsfdi):
	Likewise.
	[HAVE_DOT_HIDDEN && (_SOFT_FLOAT || __NO_FPRS__)] (__fixunsdfdi):
	Likewise.
	[HAVE_DOT_HIDDEN && (_SOFT_FLOAT || __NO_FPRS__)] (__fixunssfdi):
	Likewise.
	[HAVE_DOT_HIDDEN && (_SOFT_FLOAT || __NO_FPRS__)] (__floaddidf):
	Likewise.
	[HAVE_DOT_HIDDEN && (_SOFT_FLOAT || __NO_FPRS__)] (__floaddisf):
	Likewise.
	* sysdeps/powerpc/nofpu/Versions (libc): Remove __fixdfdi,
	__fixsfdi, __fixunsdfdi, __fixunssfdi, __floatdidf and __floatdisf
	from GLIBC_2.3.2.
2013-12-19 21:26:36 +00:00
Adhemerval Zanella
6eeb678ac0 Update powerpc-fpu ULPs. 2013-12-19 13:44:16 -06:00
Joseph Myers
6f6fc48226 Move tests of sincos from libm-test.inc to auto-libm-test-in.
This patch moves tests of sincos to auto-libm-test-in, adding the
required support to gen-auto-libm-tests.

Tested x86_64 and x86 and ulps updated accordingly.

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

	* math/auto-libm-test-in: Add tests of sincos.
	* math/auto-libm-test-out: Regenerated.
	* math/libm-test.inc (sincos_test_data): Use AUTO_TESTS_fFF_11.
	* math/gen-auto-libm-tests.c (func_calc_method): Add value
	mpfr_f_11.
	(func_calc_desc): Add mpfr_f_11 union field.
	(test_functions): Add sincos.
	(calc_generic_results): Handle mpfr_f_11.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
	* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2013-12-19 17:21:01 +00:00
Andreas Schwab
83f5c32d21 Fix uses of CALL_MCOUNT in ppc64 assembler sources 2013-12-19 17:06:48 +01:00
Joseph Myers
335ee09231 Disable libm-test test name beautification for M_* constants.
math/gen-libm-test.pl has code to beautify names of various constants,
transforming the source form in libm-test.inc into the version
appearing in test names in libm-test-ulps files.

This has become decreasingly relevant over time for the M_* constants,
first as I changed the test names so only the arguments and not the
expected results appeared in them, then as tests have moved to
auto-libm-test-* so that automatically generated hex float constants
get used instead of M_* in test inputs.

This patch removes the beautification for all M_* constants.  Tested
x86_64 and x86 and ulps updated accordingly.  Even the one case where
this affected the name in the ulps files will disappear once complex
function tests are moved to auto-libm-test-*.

	* math/gen-libm-test.pl (%beautify): Remove M_* constants.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
	* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2013-12-19 14:59:22 +00:00
Joseph Myers
f88acd39da Fix x86/x86_64 expm1 inaccuracy near 0 in directed rounding modes (bug 16293).
Bug 16293 is inaccuracy of x86/x86_64 versions of expm1, near 0 in
directed rounding modes, that arises from frndint rounding the
exponent to 1 or -1 instead of 0, resulting in large cancellation
error.  This inaccuracy in turn affects other functions such as sinh
that use expm1.  This patch fixes the problem by setting
round-to-nearest mode temporarily around the affected calls to
frndint.  I don't think this is needed for other uses of frndint, such
as in exp itself, as only for expm1 is the cancellation error
significant.

Tested x86_64 and x86 and ulps updated accordingly.

	* sysdeps/i386/fpu/e_expl.S (IEEE754_EXPL) [USE_AS_EXPM1L]: Set
	round-to-nearest mode when using frndint.
	* sysdeps/i386/fpu/s_expm1.S (__expm1): Likewise.
	* sysdeps/i386/fpu/s_expm1f.S (__expm1f): Likewise.
	* sysdeps/x86_64/fpu/e_expl.S (IEEE754_EXPL) [USE_AS_EXPM1L]:
	Likewise.
	* math/auto-libm-test-in: Add more tests of expm1.  Do not expect
	sinh test to fail.
	* math/auto-libm-test-out: Regenerated.
	* math/libm-test.inc (TEST_COND_x86_64): Remove macro.
	(TEST_COND_x86): Likewise.
	(expm1_tonearest_test_data): New array.
	(expm1_test_tonearest): New function.
	(expm1_towardzero_test_data): New array.
	(expm1_test_towardzero): New function.
	(expm1_downward_test_data): New array.
	(expm1_test_downward): New function.
	(expm1_upward_test_data): New array.
	(expm1_test_upward): New function.
	(main): Run the new test functions.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
	* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2013-12-19 13:36:10 +00:00
Paul Pluzhnikov
1f33d36a8a Patch 2/4 of the effort to make TLS access async-signal-safe.
Add a signal-safe malloc replacement.

2013-12-18  Andrew Hunter  <ahh@google.com>

	* sysdeps/generic/ldsodefs.h (__signal_safe_memalign): New prototype.
	(__signal_safe_malloc, __signal_safe_free): Likewise.
	(__signal_safe_realloc, __signal_safe_calloc): Likewise.
	* elf/dl-misc.c (__signal_safe_allocator_header): New struct.
	(__signal_safe_memalign, __signal_safe_malloc): New function.
	(__signal_safe_free, __signal_safe_realloc): Likewise.
	(__signal_safe_calloc): Likewise.
	* elf/dl-tls.c (allocate_dtv, _dl_clear_dtv): Call signal-safe
	functions.
	(_dl_deallocate_tls, _dl_update_slotinfo): Likewise.
2013-12-18 16:46:18 -08:00
Paul Pluzhnikov
35e8f7ab94 Patch 3/4 of the effort to make TLS access async-signal-safe.
Factor out _dl_clear_dtv.

2013-12-18  Andrew Hunter  <ahh@google.com>

	* elf/Versions (ld): Add _dl_clear_dtv.
	* sysdeps/generic/ldsodefs.h (_dl_clear_dtv): New prototype.
	* elf/dl-tls.c (_dl_clear_dtv): New function.
	* nptl/allocatestack.c (get_cached_stack): Call _dl_clear_dtv.
2013-12-18 16:24:19 -08:00
Paul Pluzhnikov
69a17d9d24 Patch [1/4] async-signal safe TLS.
2013-12-18  Andrew Hunter  <ahh@google.com>

	* sysdeps/generic/ldsodefs.h (_dl_mask_all_signals): New prototype.
	(_dl_unmask_signals): Likewise.
	* sysdeps/mach/hurd/dl-sysdep.h (_dl_mask_all_signals): New stub.
	(_dl_unmask_all_signals): Likewise.
	* sysdeps/unix/sysv/linux/dl-sysdep.h (_dl_mask_all_signals): New prototype.
	(_dl_unmask_all_signals): Likewise.
	* sysdeps/unix/sysv/linux/dl-sysdep.c (_dl_mask_all_signals): New function.
	(_dl_unmask_signals): Likewise.
2013-12-18 15:07:11 -08:00
Joseph Myers
f889953b44 Move tests of jn and yn from libm-test.inc to auto-libm-test-in.
This patch moves tests of jn and yn to auto-libm-test-in, adding the
required support for gen-auto-libm-tests (and adding a missing
assertion there and fixing logic that was broken for functions with
integer arguments).

Tested x86_64 and x86 and ulps updated accordingly.

	* math/auto-libm-test-in: Add tests of jn and yn.
	* math/auto-libm-test-out: Regenerated.
	* math/libm-test.inc (jn_test_data): Use AUTO_TESTS_if_f.
	(yn_test_data): Likewise.
	* math/gen-auto-libm-tests.c (func_calc_method): Add value
	mpfr_if_f.
	(func_calc_desc): Add mpfr_if_f union field.
	(FUNC_mpfr_if_f): New macro.
	(test_functions): Add jn and yn.
	(calc_generic_results): Assert type of second input for
	mpfr_ff_f.  Handle mpfr_if_f.
	(output_for_one_input_case): Disable all checking for arguments
	fitting floating-point types in case of an integer argument.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
	* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2013-12-18 17:59:29 +00:00
Joseph Myers
2377648767 Update powerpc-nofpu localplt.data for fegetround hidden_proto / hidden_def.
My recent changes that added libm_hidden_proto / libm_hidden_def for
fegetround had the side effect of removing the need for a
localplt.data entry for fegetround for powerpc-nofpu.  This patch
removes that entry.  Tested powerpc-nofpu.

	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/nptl/localplt.data:
	Don't expect fegetround reference in libm.so.
2013-12-18 15:17:39 +00:00
Marcus Shawcroft
cb756c6d68 Compile e_sqrt.c with -ffp-contract=off. 2013-12-18 12:07:06 +00:00
Joseph Myers
2dec468fd8 Fix ldbl-128 logl for subnormals (bug 16338).
This patch fixes bug 16338, ldbl-128 logl not handling subnormals
(with consequent inaccuracy for lgammal as well).  The fix is simply
to use __frexpl when determining the exponent, as done already in
log2l and log10l.  Given the lack of testing of small arguments to any
of the log* functions, appropriate tests are added for all of them.

Tested x86_64 and x86 and ulps updated accordingly, and spot tests
also run for mips64 to confirm the ldbl-128 fix.

Note that while this fixes lgammal inaccuracy for small positive
arguments, I suspect that there will still be problems with spurious
underflows in that case.

	* sysdeps/ieee754/ldbl-128/e_logl.c (__ieee754_logl): Use __frexpl
	to determine exponent and adjust argument to have exponent of -1.
	* math/auto-libm-test-in: Add more tests of log, log10, log1p and
	log2.
	* math/auto-libm-test-out: Regenerated.
	* sysdeps/x86_64/fpu/libm-test-ulps: Update.
2013-12-18 11:38:27 +00:00
Andreas Schwab
1818483b15 Remove use of SSE4.2 functions for strstr on i686
The SSE4.2 have been removed from x86_64 by commit 584b18eb.  This patch
fixes the build on i686, which attempts to use the removed files.
2013-12-18 14:28:30 +10:00
Joseph Myers
25de95bfd1 Remove unused files from sysdeps/unix/bsd/bsd4.4/bits/. 2013-12-17 18:53:32 +00:00