Commit Graph

31380 Commits

Author SHA1 Message Date
Adhemerval Zanella
eab380d8ec Move shared pthread definitions to common headers
This patch removes all the replicated pthread definition accross the
architectures and consolidates it on shared headers.  The new
organization is as follow:

  * Architecture specific definition (such as pthread types sizes) are
    place in the new pthreadtypes-arch.h header in arch specific path.

  * All shared structure definition are moved to a common NPTL header
    at sysdeps/nptl/bits/pthreadtypes.h (with now includes the arch
    specific one for internal definitions).

  * Also, for C11 future thread support, both mutex and condition
    definition are placed in a common header at
    sysdeps/nptl/bits/thread-shared-types.h.

It is also a refactor patch without expected functional changes.
Checked with a build for all major ABI (aarch64-linux-gnu, alpha-linux-gnu,
arm-linux-gnueabi, i386-linux-gnu, ia64-linux-gnu,
m68k-linux-gnu, microblaze-linux-gnu, mips{64}-linux-gnu, nios2-linux-gnu,
powerpc{64le}-linux-gnu, s390{x}-linux-gnu, sparc{64}-linux-gnu,
tile{pro,gx}-linux-gnu, and x86_64-linux-gnu).

	* posix/Makefile (headers): Add pthreadtypes-arch.h and
	thread-shared-types.h.
	* sysdeps/aarch64/nptl/bits/pthreadtypes-arch.h: New file: arch
	specific thread definition.
	* sysdeps/alpha/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/arm/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/hppa/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/ia64/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/m68k/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/microblaze/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/mips/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/nios2/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/powerpc/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/s390/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/sh/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/sparc/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/tile/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/x86/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/nptl/bits/thread-shared-types.h: New file: shared
	thread definition between POSIX and C11.
	* sysdeps/aarch64/nptl/bits/pthreadtypes.h.: Remove file.
	* sysdeps/alpha/nptl/bits/pthreadtypes.h: Likewise.
	* sysdeps/arm/nptl/bits/pthreadtypes.h: Likewise.
	* sysdeps/hppa/nptl/bits/pthreadtypes.h: Likewise.
	* sysdeps/m68k/nptl/bits/pthreadtypes.h: Likewise.
	* sysdeps/microblaze/nptl/bits/pthreadtypes.h: Likewise.
	* sysdeps/mips/nptl/bits/pthreadtypes.h: Likewise.
	* sysdeps/nios2/nptl/bits/pthreadtypes.h: Likewise.
	* sysdeps/ia64/nptl/bits/pthreadtypes.h: Likewise.
	* sysdeps/powerpc/nptl/bits/pthreadtypes.h: Likewise.
	* sysdeps/s390/nptl/bits/pthreadtypes.h: Likewise.
	* sysdeps/sh/nptl/bits/pthreadtypes.h: Likewise.
	* sysdeps/sparc/nptl/bits/pthreadtypes.h: Likewise.
	* sysdeps/tile/nptl/bits/pthreadtypes.h: Likewise.
	* sysdeps/x86/nptl/bits/pthreadtypes.h: Likewise.
	* sysdeps/nptl/bits/pthreadtypes.h: New file: common thread
	definitions shared across all architectures.
2017-05-09 17:49:17 -03:00
Joseph Myers
0cb5da5c09 Simplify sendmmsg code.
Now we can assume a kernel with sendmmsg support, this patch
simplifies the implementation to be similar to that for accept4:
either using socketcall or the syscall according to whether the
syscall is known to be available, without further fallback
implementations.  The __ASSUME_SENDMMSG macro is kept (now defined
unconditionally), since it's used in resolv/res_send.c.

Tested for x86_64 and x86.

	* sysdeps/unix/sysv/linux/kernel-features.h
	(__ASSUME_SENDMMSG_SYSCALL): Define unconditionally.
	(__ASSUME_SENDMMSG): Likewise.
	(__ASSUME_SENDMMSG_SOCKETCALL): Remove macro.
	* sysdeps/unix/sysv/linux/sendmmsg.c (__sendmmsg): Define using
	sendmmsg syscall if that can be assumed to be present, socketcall
	otherwise, with no fallback for runtime failure.
2017-05-09 20:01:52 +00:00
Joseph Myers
9a45f54310 Simplify recvmmsg code.
Now we can assume a kernel with recvmmsg support, this patch
simplifies the implementation to be similar to that for accept4:
either using socketcall or the syscall according to whether the
syscall is known to be available, without further fallback
implementations.

(In fact further simplification is possible, getting rid of the
__ASSUME_*_SYSCALL_WITH_SOCKETCALL macros now that the minimum kernel
is guaranteed support for all of accept4, recvmmsg, sendmmsg, whether
through syscalls or through socketcall.  I intend to do that for all
of accept4 / recvmmsg / sendmmsg together - so making their
implementations just like those for older socket functions - once the
basic cleanup for 3.2 minimum kernel is done for sendmmsg as well as
recvmmsg.)

Tested for x86_64 and x86.

	* sysdeps/unix/sysv/linux/kernel-features.h
	(__ASSUME_RECVMMSG_SYSCALL): Define unconditionally.
	(__ASSUME_RECVMMSG_SOCKETCALL): Remove macro.
	(__ASSUME_RECVMMSG): Likewise.
	* sysdeps/unix/sysv/linux/recvmmsg.c (recvmmsg): Define using
	recvmmsg syscall if it can be assumed to be present, socketcall
	otherwise, with no fallback for runtime failure.
2017-05-09 20:01:01 +00:00
Paul E. Murphy
4fc12f0eda Add support for testing __STDC_WANT_IEC_60559_TYPES_EXT__
This macro is defined by TS 18661-3 for supporting the _FloatN and
_FloatNx types, as well as the functions suffixed with fN.

	* bits/libc-header-start.h:
	(__GLIBC_USE_IEC_60559_TYPES_EXT): New macro.
	* include/features.h: Describe __STDC_WANT_IEC_60559_TYPES_EXT__.
	* manual/creature.texi: Likewise.
2017-05-09 11:40:28 -03:00
Paul E. Murphy
26265c3bce float128: Add _Float128 make bits to libm.
This adds the appropriate common bits for a platform to
enable float128 and expose ABI.

	* math/Makefile:
	(type-float128-suffix): New variable
	(type-float128-routines): Likewise
	(type-float128-yes): Likewise
	(types): Append float128 if supported
	(types-basic): New variable to control the use of templates for
	float, double, and long double, but not for float128 or newer types.
	(type-basic-foreach): Likewise.

	* sysdeps/ieee754/float128/Makeconfig: New file.
	* sysdeps/ieee754/float128/Versions: New file.
2017-05-09 11:40:28 -03:00
Joseph Myers
695d7d138e Assume prlimit64 is available.
This patch makes sysdeps/unix/sysv/linux code assume the prlimit64
syscall is always available, given the minimum of a 3.2 kernel.

__ASSUME_PRLIMIT64, which in fact was no longer used, is removed.
Code conditional on __NR_prlimit64 being defined is made
unconditional.  Fallback code for the case where prlimit64 produces an
ENOSYS error is removed, substantially simplifying some functions.

Tested for x86_64 and x86.

	* sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_PRLIMIT64):
	Remove macro.
	* sysdeps/unix/sysv/linux/getrlimit64.c (__getrlimit64): Assume
	prlimit64 is always available and does not give an ENOSYS error.
	* sysdeps/unix/sysv/linux/prlimit.c [__NR_prlimit64]: Make code
	unconditional.
	[!__NR_prlimit64]: Remove conditional code.
	* sysdeps/unix/sysv/linux/setrlimit.c (__setrlimit): Assume
	prlimit64 is always available and does not give an ENOSYS error.
	* sysdeps/unix/sysv/linux/setrlimit64.c (__setrlimit64): Likewise.
2017-05-09 14:05:09 +00:00
Zack Weinberg
a972dc672c sunrpc/tst-xdrmem2.c: Include stdint.h. 2017-05-09 07:50:56 -04:00
Florian Weimer
0ad970bb13 resolv: Use RES_DFLRETRY consistently [BZ #21474] 2017-05-09 13:19:55 +02:00
Zack Weinberg
2bfdaeddaa Rename cppflags-iterator.mk to libof-iterator.mk, remove extra-modules.mk.
cppflags-iterator.mk no longer has anything to do with CPPFLAGS; all
it does is set libof-$(foo) for a list of files.  extra-modules.mk
does the same thing, but with a different input variable, and doesn't
let the caller control the module.  Therefore, this patch gives
cppflags-iterator.mk a better name, removes extra-modules.mk, and
updates all uses of both.

	* extra-modules.mk: Delete file.
	* cppflags-iterator.mk: Rename to ...
	* libof-iterator.mk: ...this.  Adjust comments.

	* Makerules, extra-lib.mk, benchtests/Makefile, elf/Makefile
	* elf/rtld-Rules, iconv/Makefile, locale/Makefile, malloc/Makefile
	* nscd/Makefile, sunrpc/Makefile, sysdeps/s390/Makefile:
	Use libof-iterator.mk instead of cppflags-iterator.mk or
	extra-modules.mk.

	* benchtests/strcoll-inputs/filelist#en_US.UTF-8: Remove
	extra-modules.mk and cppflags-iterator.mk, add libof-iterator.mk.
2017-05-09 07:06:29 -04:00
Stefan Liebler
61f4fa7fd7 S390: Regenerate ULPs
Updated ulps file - Needed if build with GCC 7.

ChangeLog:

	* sysdeps/s390/fpu/libm-test-ulps: Regenerated.
2017-05-09 09:18:09 +02:00
Carlos O'Donell
7224e32d7b vfprintf.c: Refactor magic number 32 into EXTSIZ.
The magic number 32 is used everywhere as extra size to
use when doing certain operations. This commit refactors
that into a macro so you can change this value if you're
debugging something in a local build.
2017-05-08 16:13:16 -04:00
Joseph Myers
1721145f03 Remove __ASSUME_PROC_PID_TASK_COMM.
This patch removes the __ASSUME_PROC_PID_TASK_COMM macro, and
associated conditional code (in a testcase), now that 3.2 is the
global minimum Linux kernel version supported.

Tested for x86_64.

	* sysdeps/unix/sysv/linux/kernel-features.h
	(__ASSUME_PROC_PID_TASK_COMM): Remove macro.
	* sysdeps/unix/sysv/linux/tst-setgetname.c: Do not include
	<kernel-features.h>.
	(do_test) [!__ASSUME_PROC_PID_TASK_COMM]: Remove conditional code.
2017-05-08 16:44:54 +00:00
Joseph Myers
1278ed2c64 Remove __ASSUME_GETCPU_SYSCALL.
This patch removes the definition of __ASSUME_GETCPU_SYSCALL.  In fact
this macro is unused, probably since:

commit dd26c44403
Author: Adhemerval Zanella <adhemerval.zanella@linaro.com>
Date:   Wed Apr 22 14:21:39 2015 -0300

    Consolidate sched_getcpu

so it could have been removed even without the move to 3.2 as minimum
kernel version on x86_64.

Tested for x86_64.

	* sysdeps/unix/sysv/linux/x86_64/kernel-features.h
	(__ASSUME_GETCPU_SYSCALL): Remove macro.
2017-05-08 14:36:42 +00:00
Florian Weimer
c22553effb support: Prevent multiple deletion of temporary files
Otherwise, another user might recreate these files after the first
deletion.  Particularly with temporary directories, this could result
in the removal of unintended files through symbol link attacks.
2017-05-08 16:20:40 +02:00
Florian Weimer
706256afb6 support: Delete temporary files in LIFO order
This is required to remove temporary directories which contain
temporary files.  Previously, FIFO order meant that directory
removal was attempted when the directory still contained files,
which meant that temporary directory cleanup was essentially
unsupported.
2017-05-08 15:54:10 +02:00
Florian Weimer
cd354a3849 Remove <sys/ultrasound.h>
This header was once used for constants related to the Gravis
Ultrasound sound card.
2017-05-08 14:59:21 +02:00
Joseph Myers
139ace9575 Require Linux kernel 3.2 or later on x86 / x86_64.
As per the recent discussion, this patch implements a requirement for
Linux 3.2 or later for x86 and x86_64.  This is only the initial
change to increase the configured minimum; it's expected that followup
patches would deal with associated removal of conditionals that are no
longer needed.  If we remove the start-up test on the kernel version,
of course the NEWS and README text should then be revised (to reflect
that this version is just one such that glibc does not intend to
include compatibility code for any older kernel version, rather than
older kernels necessarily failing to work or glibc necessarily having
compatibility code for newer interfaces).

The followups would be able to assume presence of getcpu (x86_64),
recvmmsg (not always through its own syscall, sometimes only through
socketcall), sendmmsg (likewise), /proc/$pid/task/$tid/comm, f_flags
from statfs, prlimit64.

Tested for x86_64 and x86.

	* sysdeps/unix/sysv/linux/i386/configure.ac (arch_minimum_kernel):
	Remove.
	* sysdeps/unix/sysv/linux/i386/configure: Regenerated.
	* sysdeps/unix/sysv/linux/x86_64/64/configure.ac
	(arch_minimum_kernel): Remove.
	* sysdeps/unix/sysv/linux/x86_64/64/configure: Regenerated.
	* README: Update statement about Linux kernel requirements.
2017-05-08 10:45:20 +00:00
Adhemerval Zanella
717da4b3be manual: Add preadv and pwritev documentation
* manual/llio.texi: Add preadv and pwritev documentation.
2017-05-04 17:44:12 -03:00
Joseph Myers
176804300b Fix network headers stdint.h namespace (bug 21455).
conform/ namespace tests of arpa/inet.h, netdb.h and netinet/in.h fail
for UNIX98 and XPG42 because of inclusion of stdint.h, which defines
macros not permitted in those headers for those standards.  UNIX98
allows them to include inttypes.h, but (predating C99) has restricted
inttypes.h contents (not yet tested in the conform/ tests) not
including those macros; XPG4.2 has no such permission and no
inttypes.h / stdint.h at all.

This patch rearranges the headers to avoid this issue.  intN_t
definitions move to bits/stdint-intn.h, and uintN_t definitions to
bits/stdint-uintn.h.  (These are not bits/types/ headers because they
each define four types.  They are separate rather than just a single
header because sys/types.h defines intN_t but u_intN_t rather than
uintN_t - and while sys/types.h could define uintN_t because of the
POSIX reservation of *_t, existing practice there is largely to
condition types on appropriate feature test macros, and indeed there
is at least one open bug report (14553) about a type that's not
so-conditioned, so maybe types there should actually have conditions
added where appropriate.)  The affected network headers are then made
to include bits/stdint-uintn.h instead of stdint.h.  This allows six
XFAILs to be removed.

This doesn't do anything about inttypes.h defining more than it should
for UNIX98, but we don't have conformtest expectations for that case
at present (and my inclination is that a fix for that should be as
local as possible - affecting only inttypes.h, not stdint.h, only for
the case of __USE_UNIX98 && !__USE_ISOC99).

Tested for x86_64.

	[BZ #21455]
	* bits/stdint-intn.h: New file.
	* bits/stdint-uintn.h: Likewise.
	* stdlib/Makefile (headers): Add bits/stdint-intn.h and
	bits/stdint-uintn.h.
	* inet/netinet/in.h: Include <bits/stdint-uintn.h> instead of
	<stdint.h>.
	* posix/sys/types.h: Include <bits/stdint-intn.h>.
	(__int8_t_defined): Do not define here.
	(int8_t): Likewise.
	(int16_t): Likewise.
	(int32_t): Likewise.
	(int64_t): Likewise.
	[__GNUC_PREREQ (2, 7)] (__intN_t): Likewise.
	* resolv/netdb.h: Include <bits/stdint-uintn.h> instead of
	<stdint.h>.
	* include/netdb.h [_ISOMAC]: Do not include <stdint.h>.
	* sysdeps/generic/stdint.h: Include <bits/stdint-intn.h> and
	<bits/stdint-uintn.h>.
	(int8_t): Do not define here.
	(int16_t): Likewise.
	(int32_t): Likewise.
	(int64_t): Likewise.
	(uint8_t): Likewise.
	(uint16_t): Likewise.
	(uint32_t): Likewise.
	(uint64_t): Likewise.
	* conform/Makefile (test-xfail-XPG42/arpa/inet.h/conform): Remove
	variable.
	(test-xfail-XPG42/netdb.h/conform): Likewise.
	(test-xfail-XPG42/netinet/in.h/conform): Likewise.
	(test-xfail-UNIX98/arpa/inet.h/conform): Likewise.
	(test-xfail-UNIX98/netdb.h/conform): Likewise.
	(test-xfail-UNIX98/netinet/in.h/conform): Likewise.
2017-05-04 20:36:42 +00:00
Paul E. Murphy
593bf7189a ldbl-128: Use mathx_hidden_def inplace of hidden_def
This provides a extra macro expansion before invoking
the hidden_def macro.  This is necessary to build the
ldbl-128 files as float128 correctly.

	* sysdeps/generic/math_private.h:
	(mathx_hidden_def): New macro.
	* sysdeps/ieee754/ldbl-128/s_finitel.c: Replace hidden_def with
	the above.
	* sysdeps/ieee754/ldbl-128/s_isinfl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_isnanl.c: Likewise.
2017-05-04 14:47:27 -03:00
Joseph Myers
4c3992fc45 Fix signal.h bsd_signal namespace (bug 21445).
signal.h declares bsd_signal for __USE_XOPEN.  But this function was
obsoleted in the 2001 edition of POSIX and removed in the 2008
edition, so it should not be declared when the 2008 edition is in use.
This patch fixes the conditionals accordingly.  (This does not fix any
conform/ test failures because of other namespace issues in signal.h.)

Tested for x86_64.

	[BZ #21445]
	* signal/signal.h [__USE_XOPEN2K8] (bsd_signal): Do not declare.
2017-05-04 17:38:05 +00:00
Joseph Myers
fd9f30f6f9 Use __glibc_reserved convention in mcontext, sigcontext (bug 21457).
This patch implements the most straightforward part of fixing
namespace issues for sys/ucontext.h and related headers: where fields
in sys/ucontext.h or bits/sigcontext.h are named "reserved", "padding"
or similar, they are renamed to use the __glibc_reserved* naming
convention.  It does not change fields with a leading underscore, or
even those with a prefix such as uc_ or sc_.  It only fixes a small
part of bug 21457, so no XFAILs are removed.

Tested for x86_64 and x86, and with build-many-glibcs.py.

	[BZ #21457]
	* sysdeps/unix/sysv/linux/mips/sys/ucontext.h
	[_MIPS_SIM != _ABIO32] (mcontext_t): Rename field reserved to
	__glibc_reserved1.
	* sysdeps/unix/sysv/linux/x86/bits/sigcontext.h
	(struct _fpx_sw_bytes): Rename field padding to __glibc_reserved1.
	(struct _fpxreg): Likewise.
	[!__x86_64__] (struct _fpstate): Rename field reserved to
	__glibc_reserved1.  Rename field padding to __glibc_reserved2.
	[__x86_64__] (struct _fpstate): Rename field padding to
	__glibc_reserved1.
	(struct _xsave_hdr): Rename field reserved1 to __glibc_reserved1.
	Rename field reserved2 to __glibc_reserved2.
	* sysdeps/unix/sysv/linux/x86/sys/ucontext.h
	[__x86_64__] (struct _libc_fpxreg): Rename field padding to
	__glibc_reserved1.
	[__x86_64__] (struct _libc_fpstate): Rename field padding to
	__glibc_reserved1.
2017-05-04 11:26:33 +00:00
Rajalakshmi Srinivasaraghavan
808befbf9e powerpc: Fix strncat ifunc selection
Correct hwcap usage in strncat introduced by commit
249dcdb71b.
Tested on power7 and power8 systems
2017-05-04 12:35:56 +05:30
H.J. Lu
1432d38ea0 x86: Set dl_platform and dl_hwcap from CPU features [BZ #21391]
dl_platform and dl_hwcap are set from AT_PLATFORM and AT_HWCAP very
early during startup.  They are used by dynamic linker to determine
platform and build an array of hardware capability names, which are
added to search path when loading shared object.  dl_platform and
dl_hwcap are unused on x86-64.  On i386, i386, i486, i586 and i686
platforms were supported and only SSE2 capability was used.

On x86, usage of AT_PLATFORM and AT_HWCAP to determine platform and
processor capabilities is obsolete since all information is available
in dl_x86_cpu_features.  This patch sets dl_platform and dl_hwcap from
dl_x86_cpu_features in dynamic linker.  On i386, the available plaforms
are changed to i586 and i686 since i386 has been deprecated.  On x86-64,
the available plaforms are haswell, which is for Haswell class processors
with BMI1, BMI2, LZCNT, MOVBE, POPCNT, AVX2 and FMA, and xeon_phi, which
is for Xeon Phi class processors with AVX512F, AVX512CD, AVX512ER and
AVX512PF.  A capability, avx512_1, is also added to x86-64 for AVX512
ISAs: AVX512F, AVX512CD, AVX512BW, AVX512DQ and AVX512VL.

	[BZ #21391]
	* sysdeps/i386/dl-machine.h (dl_platform_init) [IS_IN (rtld)]:
	Only call init_cpu_features.
	[!IS_IN (rtld)]: Only set GLRO(dl_platform) to NULL if needed.
	* sysdeps/x86_64/dl-machine.h (dl_platform_init): Likewise.
	* sysdeps/i386/dl-procinfo.h: Removed.
	* sysdeps/unix/sysv/linux/i386/dl-procinfo.h: Don't include
	<sysdeps/i386/dl-procinfo.h> nor <ldsodefs.h>.  Include
	<sysdeps/x86/dl-procinfo.h>.
	(_dl_procinfo): Replace _DL_HWCAP_COUNT with 32.
	* sysdeps/unix/sysv/linux/x86_64/dl-procinfo.h [!IS_IN (ldconfig)]:
	Include <sysdeps/x86/dl-procinfo.h> instead of
	 <sysdeps/generic/dl-procinfo.h>.
	* sysdeps/x86/cpu-features.c: Include <dl-hwcap.h>.
	(init_cpu_features): Set dl_platform, dl_hwcap and dl_hwcap_mask.
	* sysdeps/x86/cpu-features.h (bit_cpu_LZCNT): New.
	(bit_cpu_MOVBE): Likewise.
	(bit_cpu_BMI1): Likewise.
	(bit_cpu_BMI2): Likewise.
	(index_cpu_BMI1): Likewise.
	(index_cpu_BMI2): Likewise.
	(index_cpu_LZCNT): Likewise.
	(index_cpu_MOVBE): Likewise.
	(index_cpu_POPCNT): Likewise.
	(reg_BMI1): Likewise.
	(reg_BMI2): Likewise.
	(reg_LZCNT): Likewise.
	(reg_MOVBE): Likewise.
	(reg_POPCNT): Likewise.
	* sysdeps/x86/dl-hwcap.h: New file.
	* sysdeps/x86/dl-procinfo.h: Likewise.
	* sysdeps/x86/dl-procinfo.c (_dl_x86_hwcap_flags): New.
	(_dl_x86_platforms): Likewise.
2017-05-03 13:44:35 -07:00
DJ Delorie
3b5f801ddb Tweak realloc/MREMAP comment to be more accurate.
MMap'd memory isn't shrunk without MREMAP, but IIRC this is intentional for
performance reasons.  Regardless, this patch tweaks the existing comment to
be more accurate wrt the existing code.

	[BZ #21411]
	* malloc/malloc.c: Tweak realloc/MREMAP comment to be more accurate.
2017-05-03 16:28:01 -04:00
Phil Blundell
e35ac97cc8 Correct misplaced comments in struct ip_mreq_source 2017-05-03 20:59:51 +01:00
Carlos O'Donell
8ba5c9b8d6 Bug 20686: Add el_GR@euro support.
Despite the fact that el_GR is ISO-8859-7:2003 which contains the euro
symobl, it is not possible to know this apriori to selecting the el_GR
locale. Therefore you don't know if el_GR can possibly have the 2003
ammendments which include the euro symbol. This is resolved by creating
an el_GR@euro locale similar to all the other @euro locales for non-UTF8
charsets.
2017-05-03 15:37:04 -04:00
Carlos O'Donell
fa17b9c720 Bug 20116: Clarify behaviour of PD->lock.
Add comments to the concurrency notes to clarify the semaphore-like and
mutex-like behaviours of PD->lock.
2017-05-03 15:24:43 -04:00
Adhemerval Zanella
b62c381591 Consolidate Linux epoll_wait syscall
This patch consolidates the epoll_wait Linux syscall generation on
sysdeps/unix/sysv/linux/epoll_wait.c.  The implementation tries to
use __NR_epoll_wait if defined, otherwise calls epoll_pwait.

Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
arch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu.

	* sysdeps/unix/sysv/linux/epoll_wait.c: New file.
	* sysdeps/unix/sysv/linux/generic/epoll_wait.c: Remove file.
	* sysdeps/unix/sysv/linux/syscalls.list: Remove epoll_wait from
	auto-generation list.
2017-05-03 10:36:43 -03:00
Adhemerval Zanella
26f28fd73d Consolidate Linux select implementation
This patch consolidates the select Linux syscall implementation on
sysdeps/unix/sysv/linux/select.c.  The changes are:

  1. Remove select from auto-generation syscalls.list on the architecture
     that uses __NR_select.
  2. Remove generic implementation add a default one that handle all
     current cases (with the expection of alpha)
     The new default implementation will either use __NR_select if
     available of fallback to __NR_pselect6 otherwise.
  3. Add a alpha outlier implementation which requires old compatibility
     symbols.

Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
arch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu.

	* sysdeps/unix/sysv/linux/alpha/Makefile (sysdep_routines): Add
	osf_select.
	* sysdeps/unix/sysv/linux/alpha/select.c: New file.
	* sysdeps/unix/sysv/linux/alpha/syscalls.list: Remove select and
	osf_select from auto-generation list.
	* sysdeps/unix/sysv/linux/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/generic/select.c: Remove file.
	* sysdeps/unix/sysv/linux/select.c: New file.
2017-05-03 10:36:36 -03:00
Adhemerval Zanella
b5eede9730 Consolidate Linux poll implementation
This patch consolidates the poll Linux syscall implementation on
sysdeps/unix/sysv/linux/poll.c.  It basically removes poll from
auto-generation list and add a default implementation that either
call __NR_poll directly (if the kernel headers defines it) or
ppoll adjusting the timeout argument (as the generic implementation).

Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
aarch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu.

	* sysdeps/unix/sysv/linux/generic/poll.c: Remove file.
	* sysdeps/unix/sysv/linux/poll.c: New file.
	* sysdeps/unix/sysv/linux/syscalls.list: Remove poll from
	auto-generation list.
2017-05-03 10:36:01 -03:00
Joseph Myers
14ea415d04 Add HWCAP_ASIMDRDM from Linux 4.11 to AArch64 bits/hwcap.h.
This patch adds the HWCAP_ASIMDRDM macro from Linux 4.11 to the
AArch64 bits/hwcap.h.

Tested (compilation only) with build-many-glibcs.py.

	* sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h (HWCAP_ASIMDRDM):
	New macro.
2017-05-03 11:04:07 +00:00
Vladimir Mezentsev
b3d9c9a20c sparc: handle R_SPARC_DISP64 and R_SPARC_REGISTER relocs
The Studio compiler generates relocation types which are not supported
in glibc. Handle these relocs.

Tested in sparc64-linux-gnu. No regressions.

	BZ #21179]
	* sysdeps/sparc/sparc64/dl-machine.h: Handle R_SPARC_DISP64 and
	R_SPARC_REGISTER relocations.
2017-05-02 16:57:31 -03:00
Adhemerval Zanella
827b823783 posix: Fix internal p{read,write} plt usage
This patch adds internal alias for __pread, __pread64, and __pwrite
following the already in place one for __pwrite64.  This is not used
in any implementation but on microblaze on preadv/pwritev fallback
(since it does not define __ASSUME_PREADV).

In fact it was signaled by commit c35db50ff5 which update the expected
localptl.data for the architecture based on resulted value.  This patch
updates the plt for microblaze now that p{read,write}{64} are correctly
routed to use internal alias.

Checked on x86_64-linux-gnu and a build for all supported architectures
(no all variants although).

	* include/unistd.h (__pread): Add libc_hidden_proto.
	(__pread64): Likewise.
	(__pwrite): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/localplt.data [libc.so]
	(__pread64): Remove.
	* sysdeps/unix/sysv/linux/pread.c (__pread64): Add libc_hidden_weak.
	* sysdeps/unix/sysv/linux/pread64.c (__pread64): Likewise.
	* sysdeps/unix/sysv/linux/pwrite.c (__pwrite): Likewise.
2017-05-02 14:57:40 -03:00
Tulio Magno Quites Machado Filho
24a10cfb3e powerpc: Update powerpc-fpu libm-test-ulps
* sysdeps/powerpc/fpu/libm-test-ulps: Update.
2017-05-02 13:40:11 -03:00
Adhemerval Zanella
fa66f341a0 nptl: Using libsupport for tst-cancel4*
Checked on x86_64-linux-gnu.

	* nptl/tst-cancel4-common.c: Use libsupport.
	* nptl/tst-cancel4-common.h: Likewise.
	* nptl/tst-cancel4.c (tf_read): Likewise.
	(tf_readv): Likewise.
	(tf_write): Likewise.
	(tf_writev): Likewise.
	(tf_sleep): Likewise.
	(tf_usleep): Likewise.
	(tf_nanosleep): Likewise.
	(tf_select): Likewise.
	(tf_pselect): Likewise.
	(tf_poll): Likewise.
	(tf_ppoll): Likewise.
	(tf_wait): Likewise.
	(tf_waitpid): Likewise.
	(tf_waitid): Likewise.
	(tf_sigpause): Likewise.
	(tf_sigsuspend): Likewise.
	(tf_sigwait): Likewise.
	(tf_sigwaitinfo): Likewise.
	(tf_sigtimedwait): Likewise.
	(tf_pause): Likewise.
	(tf_accept): Likewise.
	(tf_send): Likewise.
	(tf_recv): Likewise.
	(tf_recvfrom): Likewise.
	(tf_recvmsg): Likewise.
	(tf_open): Likewise.
	(tf_close): Likewise.
	(tf_pread): Likewise.
	(tf_pwrite): Likewise.
	(tf_preadv): Likewise.
	(tf_pwritev): Likewise.
	(tf_fsync): Likewise.
	(tf_fdatasync): Likewise.
	(tf_msync): Likewise.
	(tf_sendto): Likewise.
	(tf_sendmsg): Likewise.
	(tf_creat): Likewise.
	(tf_connect): Likewise.
	(tf_tcdrain): Likewise.
	(tf_msgrcv): Likewise.
	(tf_msgsnd): Likewise.
	* nptl/tst-cancel4_1.c (tf_sendmmsg): Likewise.
	* nptl/tst-cancel4_2.c (tf_recvmmsg): Likewise.
2017-05-01 15:41:46 -03:00
Adhemerval Zanella
ffd6023885 posix: Using libsupport for p{write,read}v tests
Checked on x86_64-linux-gnu.

	* misc/tst-preadvwritev-common.c (do_prepare): Use libsupport
	expected arguments.
	(do_test): Adapt to use libsupport.
2017-05-01 15:41:45 -03:00
Joseph Myers
25e39b4229 Add TCP_FASTOPEN_CONNECT from Linux 4.11 to netinet/tcp.h.
This patch adds the TCP_FASTOPEN_CONNECT macro from Linux 4.11 to
sysdeps/gnu/netinet/tcp.h.

Tested for x86-64.

	* sysdeps/gnu/netinet/tcp.h (TCP_FASTOPEN_CONNECT): New macro.
2017-05-01 16:18:31 +00:00
Joseph Myers
ef0e5f2f5c Add PF_SMC, AF_SMC from Linux 4.11 to bits/socket.h.
This patch adds the PF_SMC / AF_SMC macros from Linux 4.11 to
sysdeps/unix/sysv/linux/bits/socket.h.

Tested for x86_64.

	* sysdeps/unix/sysv/linux/bits/socket.h (PF_SMC): New macro.
	(PF_MAX): Set to 44.
	(AF_SMC): New macro.
2017-05-01 15:11:33 +00:00
Joseph Myers
3e4df7ef13 Default Linux kernel version in build-many-glibcs.py to 4.11.
* scripts/build-many-glibcs.py (Context.checkout): Default Linux
	kernel version to 4.11.
2017-05-01 11:15:43 +00:00
Tulio Magno Quites Machado Filho
c064f6a613 powerpc: Fix logbl on power7 [BZ# 21280]
1. Fix the results for negative subnormals by ignoring the signal when
    normalizing the value.
 2. Fix the output when the high part is a power of 2 and the low part
    is a nonzero number with opposite sign.  This fix is based on commit
    380bd0fd24.

After applying this patch, logbl() tests pass cleanly on POWER >= 7.

Tested on powerpc, powerpc64 and powerpc64le

	[BZ #21280]
	* sysdeps/powerpc/power7/fpu/s_logbl.c (__logbl): Ignore the
	signal of subnormals and adjust the exponent of power of 2 down
	when low part has opposite sign.
2017-04-28 19:45:52 -03:00
Paul E. Murphy
2f7f3cd8cd powerpc64le: Create divergent sysdep directory for powerpc64le.
float128 on powerpc64le requires the addition of the ieee754/float128
sysdep, whereas powerpc64 doesn't.  This requires creating a bunch of
submachine and cpu directories and Implies files which just point
towards their powerpc64 equivalent.

Tested on P7, P8, and generic powerpc64le targets with and without
multiarch.

	* sysdeps/powerpc/powerpc64le/Implies: New file.
	* sysdeps/powerpc/powerpc64le/fpu/Implies: New file.
	* sysdeps/powerpc/powerpc64le/fpu/multiarch/Implies: New file.
	* sysdeps/powerpc/powerpc64le/multiarch/Implies: New file.
	* sysdeps/powerpc/powerpc64le/power7/Implies: New file.
	* sysdeps/powerpc/powerpc64le/power7/fpu/Implies: New file.
	* sysdeps/powerpc/powerpc64le/power7/fpu/multiarch/Implies: New file.
	* sysdeps/powerpc/powerpc64le/power7/multiarch/Implies: New file.
	* sysdeps/powerpc/powerpc64le/power8/Implies: New file.
	* sysdeps/powerpc/powerpc64le/power8/fpu/Implies: New file.
	* sysdeps/powerpc/powerpc64le/power8/fpu/multiarch/Implies: New file.
	* sysdeps/powerpc/powerpc64le/power8/multiarch/Implies: New file.
	* sysdeps/powerpc/powerpc64le/power9/Implies: New file.
	* sysdeps/powerpc/powerpc64le/power9/fpu/Implies: New file.
	* sysdeps/powerpc/powerpc64le/power9/fpu/multiarch/Implies: New file.
	* sysdeps/powerpc/powerpc64le/power9/multiarch/Implies: New file.
	* sysdeps/powerpc/preconfigure: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64le/Implies: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64le/fpu/Implies: New file.
2017-04-28 14:17:57 -03:00
Joseph Myers
085e07db22 conformtest: Allow time.h inclusion from semaphore.h for XOPEN2K.
POSIX.1:2001 added sem_timedwait, but said nothing about defining
struct timespec in semaphore.h.  The 2008 edition added a
corresponding permission to include <time.h> from <semaphore.h>.
Since this is the normal POSIX approach in such cases, it seems
appropriate to consider this a bug fix, and so this patch makes the
conform/ tests allow that inclusion for POSIX.1:2001 as well.

Tested for x86_64.

	* conform/data/semaphore.h-data [XOPEN2K] (time.h): Allow header
	inclusion.
	* conform/Makefile (test-xfail-XOPEN2K/semaphore.h/conform):
	Remove.
2017-04-28 16:52:16 +00:00
Joseph Myers
0516e24d18 conformtest: Fix XPG standard naming.
The conform/ tests test -D_XOPEN_SOURCE under the name "XPG3", and
-D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED under the name "XPG4".

That naming is misleading.  _XOPEN_SOURCE_EXTENDED actually means
XPG4.2, including UX-shaded interfaces.  _XOPEN_SOURCE actually means
XPG4, or XPG4.2 without UX-shaded interfaces.  (Prior XPG versions
also used _XOPEN_SOURCE, but without any versioning of the values of
the macro, so XPG4.2 without UX-shaded interfaces is the only sensible
set of interfaces for glibc to expose given _XOPEN_SOURCE=1 without
_XOPEN_SOURCE_EXTENDED defined.)

This patch fixes the naming in the conform/ tests, so that what is now
called XPG4 is changed to XPG42, and what is now called XPG3 is
changed to XPG4.

Tested for x86_64 (and verified the complete set of expectations is
unchanged by the patch beyond the intended renaming).

	* conform/GlibcConform.pm (XPG4): Rename standard to XPG42.
	(XPG3): Rename standard to XPG4.
	* conform/Makefile: Likewise.
	* conform/list-header-symbols.pl: Likewise.
	* conform/data/aio.h-data: Likewise.
	* conform/data/arpa/inet.h-data: Likewise.
	* conform/data/complex.h-data: Likewise.
	* conform/data/ctype.h-data: Likewise.
	* conform/data/dlfcn.h-data: Likewise.
	* conform/data/fcntl.h-data: Likewise.
	* conform/data/fenv.h-data: Likewise.
	* conform/data/float.h-data: Likewise.
	* conform/data/fmtmsg.h-data: Likewise.
	* conform/data/ftw.h-data: Likewise.
	* conform/data/grp.h-data: Likewise.
	* conform/data/inttypes.h-data: Likewise.
	* conform/data/iso646.h-data: Likewise.
	* conform/data/langinfo.h-data: Likewise.
	* conform/data/libgen.h-data: Likewise.
	* conform/data/limits.h-data: Likewise.
	* conform/data/locale.h-data: Likewise.
	* conform/data/math.h-data: Likewise.
	* conform/data/mqueue.h-data: Likewise.
	* conform/data/ndbm.h-data: Likewise.
	* conform/data/net/if.h-data: Likewise.
	* conform/data/netdb.h-data: Likewise.
	* conform/data/netinet/in.h-data: Likewise.
	* conform/data/poll.h-data: Likewise.
	* conform/data/pthread.h-data: Likewise.
	* conform/data/pwd.h-data: Likewise.
	* conform/data/sched.h-data: Likewise.
	* conform/data/search.h-data: Likewise.
	* conform/data/semaphore.h-data: Likewise.
	* conform/data/signal.h-data: Likewise.
	* conform/data/spawn.h-data: Likewise.
	* conform/data/stdbool.h-data: Likewise.
	* conform/data/stdint.h-data: Likewise.
	* conform/data/stdio.h-data: Likewise.
	* conform/data/stdlib.h-data: Likewise.
	* conform/data/string.h-data: Likewise.
	* conform/data/strings.h-data: Likewise.
	* conform/data/stropts.h-data: Likewise.
	* conform/data/sys/mman.h-data: Likewise.
	* conform/data/sys/resource.h-data: Likewise.
	* conform/data/sys/select.h-data: Likewise.
	* conform/data/sys/socket.h-data: Likewise.
	* conform/data/sys/stat.h-data: Likewise.
	* conform/data/sys/statvfs.h-data: Likewise.
	* conform/data/sys/time.h-data: Likewise.
	* conform/data/sys/timeb.h-data: Likewise.
	* conform/data/sys/types.h-data: Likewise.
	* conform/data/sys/uio.h-data: Likewise.
	* conform/data/sys/un.h-data: Likewise.
	* conform/data/sys/wait.h-data: Likewise.
	* conform/data/syslog.h-data: Likewise.
	* conform/data/termios.h-data: Likewise.
	* conform/data/tgmath.h-data: Likewise.
	* conform/data/time.h-data: Likewise.
	* conform/data/ucontext.h-data: Likewise.
	* conform/data/unistd.h-data: Likewise.
	* conform/data/utmpx.h-data: Likewise.
	* conform/data/varargs.h-data: Likewise.
	* conform/data/wchar.h-data: Likewise.
	* conform/data/wctype.h-data: Likewise.
2017-04-27 20:29:35 +00:00
Joseph Myers
6ef8a2c76a Default build-many-glibcs.py to GCC 7 branch.
Now there is a GCC 7 release branch, this patch makes
build-many-glibcs.py default to using it instead of GCC 6.

Relative to GCC 6, this fixes the MicroBlaze build but introduces ICEs
building glibc testcases for SH (GCC PRs 78459, 78460; the latter is
an out-of-memory issue so you may want to set memory limits when
running build-many-glibcs.py).

	* scripts/build-many-glibcs.py (Context.checkout): Default gcc
	version to 7 branch.
2017-04-26 15:26:47 +00:00
Uros Bizjak
1e1f44de64 Add earlyclobber to sqrtt/sqrtf insns.
When using software completions, we have to prevent assembler to match
input and output operands of sqrtt/sqrtf insn. Add earlyclobber to
output operand to avoid unwanted operand matching.

2017-04-14  Uros Bizjak  <ubizjak@gmail.com>

    * sysdeps/alpha/fpu/math_private.h (__ieee754_sqrt): Add
    earlyclobber to output operand of sqrt insn.
    (__ieee754_sqrtf): Ditto.
2017-04-26 04:21:59 -07:00
Joseph Myers
9fe3c80c7c Fix sys/socket.h namespace issues from sys/uio.h inclusion (bug 21426).
sys/socket.h includes sys/uio.h to get the definition of the iovec
structure.

POSIX allows sys/socket.h to make all sys/uio.h symbols visible.
However, all of sys/uio.h is XSI-shaded, so for non-XSI POSIX this
results in conformtest failures (for sys/socket.h and other headers
that include it):

    Namespace violation: "UIO_MAXIOV"
    Namespace violation: "readv"
    Namespace violation: "writev"

Now, there is some ambiguity in POSIX about what namespace
reservations apply in this case - see
http://austingroupbugs.net/view.php?id=1127 - but glibc convention
would still avoid declaring readv and writev, for example, for feature
test macros that don't include them (if only headers from the relevant
standard are included), even if such declarations are permitted, so
there is a bug here according to glibc conventions.

This patch moves the struct iovec definition to a new
bits/types/struct_iovec.h header and includes that from sys/socket.h
instead of including the whole of sys/uio.h.  This fixes the namespace
issue; however, three files in glibc that were relying on the implicit
inclusion needed to be updated to include sys/uio.h explicitly.  So
there is a question of whether sys/socket.h should continue to include
sys/uio.h under some conditions, such as __USE_XOPEN or __USE_MISC or
__USE_XOPEN || __USE_MISC, for greater compatibility with code that
(wrongly) expects this optional inclusion to be present there.  (I
think the three affected files in glibc should still have explicit
sys/uio.h inclusions added in any case, however.)

Tested for x86_64.

	[BZ #21426]
	* misc/bits/types/struct_iovec.h: New file.
	* misc/Makefile (headers): Add bits/types/struct_iovec.h.
	* include/bits/types/struct_iovec.h: New file.
	* bits/uio.h (struct iovec): Replace by inclusion of
	<bits/types/struct_iovec.h>.
	* sysdeps/unix/sysv/linux/bits/uio.h (struct iovec): Likewise.
	* socket/sys/socket.h: Include <bits/types/struct_iovec.h> instead
	of <sys/uio.h>.
	* nptl/tst-cancel4.c: Include <sys/uio.h>
	* posix/test-errno.c: Likewise.
	* support/resolv_test.c: Likewise.
	* conform/Makefile (test-xfail-POSIX2008/arpa/inet.h/conform):
	Remove.
	(test-xfail-POSIX2008/netdb.h/conform): Likewise.
	(test-xfail-POSIX2008/netinet/in.h/conform): Likewise.
	(test-xfail-POSIX2008/sys/socket.h/conform): Likewise.
2017-04-25 17:52:47 +00:00
Joseph Myers
3fa6e4872d conformtest: Allow *_t in sys/socket.h.
The conformtest expectations in sys/socket.h are missing the standard
POSIX allowance for all headers to define *_t names.  For XSI standard
versions that allowance comes in via the permission to include
<sys/uio.h> (for which the expectations properly allow *_t), but for
non-XSI POSIX nothing brings in that allowance and spurious namespace
failures occur.  This patch adds the required permission to the
expectations to remove the spurious failures (by itself this does not
allow any XFAILs to be removed).

Tested for x86_64.

	* conform/data/sys/socket.h-data (*_t): Allow.
2017-04-25 16:00:28 +00:00
Adhemerval Zanella
249548e476 posix: Remove ununsed posix_spawn internal assignment
The internal 'ret' variable in '__spawni_child' function is not
used after assignment in most cases.

Checked on x86_64-linux-gnu.

	* sysdeps/unix/sysv/linux/spawni.c (__spawni_child): Remove ununsed
	assignment.
2017-04-25 08:51:21 -03:00
Adhemerval Zanella
daeb1fa2e1 [BZ 21340] add support for POSIX_SPAWN_SETSID
This patch adds support for the POSIX_SPAWN_SETSID flag.

It was recently accepted by the Austin Group:
http://austingroupbugs.net/view.php?id=1044

Checked on x86_64

	Daurnimator  <quae@daurnimator.com>
	Adhemerval Zanella  <adhemerval.zanella@linaro.org>

	[BZ #21340]
	* posix/Makefile (tests): Add tst-posix_spawn-setsid to list of tests.
	* posix/spawn.h: define POSIX_SPAWN_SETSID flag.
	* posix/spawnattr_setflags.c (ALL_FLAGS): Add POSIX_SPAWN_SETSID to
	valid flags.
	* posix/tst-posix_spawn-setsid.c: Add test for POSIX_SPAWN_SETSID.
	* sysdeps/mach/hurd/spawni.c (__spawni): Implementation of
	POSIX_SPAWN_SETSID.
	* sysdeps/posix/spawni.c (__spawni): Likewise.
	* sysdeps/unix/sysv/linux/spawni.c (__spawni_child): Likewise.
	* NEWS: Add note about POSIX_SPAWN_SETSID support.
2017-04-25 08:51:12 -03:00