Commit Graph

32136 Commits

Author SHA1 Message Date
Florian Weimer
5f0704b66c libio: Assume _LIBC, weak_alias, errno, (__set_)errno &c are defined
Do not define _POSIX_SOURCE.
2017-08-31 14:48:25 +02:00
Florian Weimer
5129873a8e malloc: Change top_check return type to void
After commit ec2c1fcefb,
(malloc: Abort on heap corruption, without a backtrace), the function
always returns 0.
2017-08-31 14:16:52 +02:00
Mike FABIAN
8715f25630 Fix decimal point and thousands separator in es_CU locale to agree with CLDR.
[BZ #15332]
	* locales/es_CU (LC_MONETARY): use “,” for mon_decimal_point
	and “.” for mon_thousands_sep (to agree with CLDR)
	* locales/es_CU (LC_NUMERIC): Likewise.
2017-08-31 12:57:26 +02:00
Akhilesh Kumar
d6e290a6ca Remove redundant data in li_BE which is identical to the data in li_NL
[BZ #22044]
	* locales/li_BE (LC_TIME): copy "li_NL".
2017-08-31 08:22:55 +02:00
Joseph Myers
4fa9b3bfe6 Fix mcontext_t sigcontext namespace (bug 21457).
This patch completes the ucontext.h namespace fixes by fixing issues
related to the use of struct sigcontext as mcontext_t, and inclusion
of <bits/sigcontext.h> even when struct sigcontext is not so used.

Inclusion of <bits/sigcontext.h> by <sys/ucontext.h> is removed; the
way to get the sigcontext structure is by including <signal.h> (in a
context where __USE_MISC is defined); the sysdeps/generic version of
sys/ucontext.h keeps the inclusion by necessity, with a comment about
how this is not namespace-clean, but the only configuration that used
it, MicroBlaze, gets its own version of the header in this patch.
Where mcontext_t was typedefed to struct sigcontext, the contents of
struct sigcontext are inserted (with appropriate namespace handling to
prefix fields with __ when __USE_MISC is not defined); review should
check that this has been done correctly in each case, whether the
definition of struct sigcontext comes from glibc headers or from the
Linux kernel.  This changes C++ name mangling on affected
architectures (which do not include x86_64/x86).

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

2017-08-14  Joseph Myers  <joseph@codesourcery.com>

	[BZ #21457]
	* sysdeps/arm/sys/ucontext.h: Do not include <bits/sigcontext.h>.
	* sysdeps/generic/sys/ucontext.h: Add comment about use of struct
	sigcontext and namespace requirements.
	* sysdeps/i386/sys/ucontext.h: Do not include <bits/sigcontext.h>.
	* sysdeps/m68k/sys/ucontext.h: Likewise.
	* sysdeps/mips/sys/ucontext.h: Likewise.  Include <bits/types.h>.
	* sysdeps/unix/sysv/linux/aarch64/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	(__ctx): Define earlier.
	(mcontext_t): Define structure contents rather than using struct
	sigcontext.
	* sysdeps/unix/sysv/linux/aarch64/ucontext_i.sym (oEXTENSION): Use
	__glibc_reserved1 instead of __reserved.
	* sysdeps/unix/sysv/linux/alpha/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	(__ctx): Define earlier.
	(mcontext_t): Define structure contents rather than using struct
	sigcontext.
	* sysdeps/unix/sysv/linux/alpha/ucontext-offsets.sym: Use
	mcontext_t instead of struct sigcontext.
	* sysdeps/unix/sysv/linux/arm/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	(__ctx): Define earlier.
	(mcontext_t): Define structure contents rather than using struct
	sigcontext.
	* sysdeps/unix/sysv/linux/hppa/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	(__ctx): Define earlier.
	(mcontext_t): Define structure contents rather than using struct
	sigcontext.
	* sysdeps/unix/sysv/linux/ia64/makecontext.c (__makecontext): Use
	mcontext_t instead of struct sigcontext.
	* sysdeps/unix/sysv/linux/ia64/sigcontext-offsets.sym: Use
	mcontext_t instead of struct sigcontext.
	* sysdeps/unix/sysv/linux/ia64/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	(__ctx): New macro.
	(struct __ia64_fpreg_mcontext): New type.
	(mcontext_t): Define structure contents rather than using struct
	sigcontext.
	(_SC_GR0_OFFSET): Use mcontext_t instead of struct sigcontext.
	(uc_sigmask): Define using __ctx.
	(uc_stack): Likewise.
	* sysdeps/unix/sysv/linux/ia64/sys/procfs.h: Include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/ia64/sys/ptrace.h: Likewise.
	* sysdeps/unix/sysv/linux/m68k/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/microblaze/sys/ucontext.h: New file.
	* sysdeps/unix/sysv/linux/mips/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/nios2/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/s390/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/sh/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/sparc/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/tile/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	(__ctx): Define earlier.
	(mcontext_t): Define structure contents rather than using struct
	sigcontext.
	* sysdeps/unix/sysv/linux/x86/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.  Include <bits/types.h>.
	* conform/Makefile (test-xfail-XPG42/signal.h/conform): Remove.
	(test-xfail-XPG42/sys/wait.h/conform): Likewise.
	(test-xfail-XPG42/ucontext.h/conform): Likewise.
	(test-xfail-UNIX98/signal.h/conform): Likewise.
	(test-xfail-UNIX98/sys/wait.h/conform): Likewise.
	(test-xfail-UNIX98/ucontext.h/conform): Likewise.
	(test-xfail-XOPEN2K/signal.h/conform): Likewise.
	(test-xfail-XOPEN2K/sys/wait.h/conform): Likewise.
	(test-xfail-XOPEN2K/ucontext.h/conform): Likewise.
	(test-xfail-POSIX2008/signal.h/conform): Likewise.
	(test-xfail-POSIX2008/sys/wait.h/conform): Likewise.
	(test-xfail-XOPEN2K8/signal.h/conform): Likewise.
	(test-xfail-XOPEN2K8/sys/wait.h/conform): Likewise.
2017-08-30 22:02:04 +00:00
Florian Weimer
5898f4548e dynarray: Set errno on overflow-induced allocation failure
This allows the caller to return directly on such an error, with an
appropriate errno value.
2017-08-30 20:10:56 +02:00
Florian Weimer
a9da0bb266 malloc: Remove corrupt arena flag
This is no longer needed because we now abort immediately
once heap corruption is detected.
2017-08-30 20:08:34 +02:00
Florian Weimer
ac3ed168d0 malloc: Remove check_action variable [BZ #21754]
Clean up calls to malloc_printerr and trim its argument list.

This also removes a few bits of work done before calling
malloc_printerr (such as unlocking operations).

The tunable/environment variable still enables the lightweight
additional malloc checking, but mallopt (M_CHECK_ACTION)
no longer has any effect.
2017-08-30 20:08:34 +02:00
Steve Ellcey
44bcba80f3 aarch64: Fix tst-makecontext3 in ILP32 mode.
* sysdeps/unix/sysv/linux/aarch64/makecontext.c (__makecontext):
	Use pointer to uint64_t instead of long int for sp.
2017-08-30 09:25:51 -07:00
Florian Weimer
ec2c1fcefb malloc: Abort on heap corruption, without a backtrace [BZ #21754]
The stack trace printing caused deadlocks and has been itself been
targeted by code execution exploits.
2017-08-30 16:39:41 +02:00
Florian Weimer
9ce673b69e Do not scale NPTL tests with available number of CPUs
On very large multi-processor systems, creating hundreds of threads
runs into a test time out.  The tests do not seem to benefit from
massive over-scheduling.
2017-08-30 16:20:31 +02:00
Mike FABIAN
8a0e619652 Use “.” in thousands_sep in the ca_ES locale
[BZ #16148]
	* locales/ca_ES (LC_NUMERIC): Use “.” in thousands_sep.
	And make it more readable by using ASCII.
2017-08-30 15:19:39 +02:00
Mike FABIAN
5f9409b787 Add country_name for mni_IN
[BZ #22022]
	* locales/mni_IN (LC_ADDRESS): Add country_name.
2017-08-30 12:27:46 +02:00
Akhilesh Kumar
232d919061 Fix abbreviated weeks and months for Somali to agree with CLDR
[BZ #22038]
	* locales/so_DJ (LC_TIME): Fix abday, abmon and
	make t_fmt in the comment agree with the value of t_fmt.
	* locales/so_ET (LC_TIME): Fix abday (From Axa to Axd)
	* locales/so_KE (LC_TIME): Fix abday (From Axa to Axd)
	* locales/so_SO (LC_TIME): Fix abday (From Axa to Axd)
2017-08-30 11:54:15 +02:00
Wei-Lun Chao
bdbf14d12e Update hanzi collation by stroke
[BZ #21951]
        * locales/cns11643_stroke: Update hanzi collation by stroke
        (Add license declaration, use strokes by component).
2017-08-29 23:34:48 +02:00
Joseph Myers
2f1aef1959 Fix m68k bits/math-inline.h macro namespace (bug 22035).
As shown by build bot failures
<https://sourceware.org/ml/libc-testresults/2017-q3/msg00349.html> the
m68k bits/mathinline.h is not namespace-clean: it fails to compile if
the user has defined macros f or l before it is included, because of
expansions of those arguments to __inline_functions.  This patch
changes the __inline_functions definitions to take not the suffix but
a macro that concatenates it with the function name, to avoid the
spurious macro expansions.

Tested for m68k with build-many-glibcs.py.

	[BZ #22035]
	* sysdeps/m68k/m680x0/fpu/bits/mathinline.h (__inline_functions):
	Define to take a second argument that is a macro that
	concatentates a suffix, not the suffix itself.
	(__CONCAT_d): New macro.
	(__CONCAT_f): Likewise.
	(__CONCAT_l): Likewise.
2017-08-29 21:07:51 +00:00
Paul Pluzhnikov
8325b477b1 2017-08-29 Paul Pluzhnikov <ppluzhnikov@google.com>
* stdlib/tst-atexit-common.c (do_test): Test handler inheritance
	by child.
2017-08-29 10:46:44 -07:00
Adhemerval Zanella
319cbbf633 MIPS/o32: Fix internal_syscall5/6/7
Fix a commit cc25c8b4c1 ("New pthread rwlock that is more scalable.")
regression and prevent uncontrolled stack space usage from happening
when a 5-, 6- or 7-argument syscall wrapper is placed in a loop.

The cause of the problem is the use of `alloca' in regular MIPS/Linux
wrappers to force the use of the frame pointer register in any function
using one or more of these wrappers.  Using the frame pointer register
is required so as not to break frame unwinding as the the stack pointer
is lowered within the inline asm used by these wrappers to make room for
the stack arguments, which 5-, 6- and 7-argument syscalls use with the
o32 ABI.

The regular MIPS/Linux wrappers are macros however, expanded inline, and
stack allocations made with `alloca' are not discarded until the return
of the function they are made in.  Consequently if called in a loop,
then virtual memory is wasted, and if the loop goes through enough
iterations, then ultimately available memory can get exhausted causing
the program to crash.

Address the issue by replacing the inline code with standalone assembly
functions, which rely on the compiler arranging syscall arguments
according to the o32 function calling convention, which MIPS/Linux
syscalls also use, except for the syscall number passed and the error
flag returned.  This way there is no need to fiddle with the stack
pointer anymore and all that has to be handled in the new standalone
functions is the special handling of the syscall number and the error
flag.

Redirect 5-, 6- or 7-argument MIPS16/Linux syscall wrappers to these new
functions as well, so as to avoid an unnecessary double call the
existing wrappers would cause with the new arrangement.

	[BZ #21956]
	* sysdeps/unix/sysv/linux/mips/mips32/mips16/Makefile
	[subdir = misc] (sysdep_routines): Remove `mips16-syscall5',
	`mips16-syscall6' and `mips16-syscall7'.
	(CFLAGS-mips16-syscall5.c, CFLAGS-mips16-syscall6.c)
	(CFLAGS-mips16-syscall7.c): Remove.
	* sysdeps/unix/sysv/linux/mips/mips32/mips16/Versions (libc):
	Remove `__mips16_syscall5', `__mips16_syscall6' and
	`__mips16_syscall7'.
	* sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall0.c
	(__mips16_syscall0): Rename `__mips16_syscall_return' to
	`__mips_syscall_return'.
	* sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall1.c
	(__mips16_syscall1): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall2.c
	(__mips16_syscall2): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall3.c
	(__mips16_syscall3): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall4.c
	(__mips16_syscall4): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall5.c:
	Remove.
	* sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall6.c:
	Remove.
	* sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall7.c:
	Remove.
	* sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall.h
	(__mips16_syscall5): Expand to `__mips_syscall5' rather than
	`__mips16_syscall5'.  Remove prototype.
	(__mips16_syscall6): Expand to `__mips_syscall6' rather than
	`__mips16_syscall6'.  Remove prototype.
	(__mips16_syscall7): Expand to `__mips_syscall7' rather than
	`__mips16_syscall7'.  Remove prototype.
	(__nomips16, __mips16_syscall_return): Move to...
	* sysdeps/unix/sysv/linux/mips/mips32/sysdep.h
	(__nomips16, __mips_syscall_return): ... here.
	[__mips16] (INTERNAL_SYSCALL_NCS): Rename
	`__mips16_syscall_return' to `__mips_syscall_return'.
	[__mips16] (INTERNAL_SYSCALL_MIPS16): Pass `number' to
	`internal_syscall##nr'.
	[!__mips16] (INTERNAL_SYSCALL): Pass `SYS_ify (name)' to
	`internal_syscall##nr'.
	(FORCE_FRAME_POINTER): Remove.
	(__mips_syscall5): New prototype.
	(internal_syscall5): Rewrite to call `__mips_syscall5'.
	(__mips_syscall6): New prototype.
	(internal_syscall6): Rewrite to call `__mips_syscall6'.
	(__mips_syscall7): New prototype.
	(internal_syscall7): Rewrite to call `__mips_syscall7'.
	* sysdeps/unix/sysv/linux/mips/mips32/mips-syscall5.S: New file.
	* sysdeps/unix/sysv/linux/mips/mips32/mips-syscall6.S: New file.
	* sysdeps/unix/sysv/linux/mips/mips32/mips-syscall7.S: New file.
	* sysdeps/unix/sysv/linux/mips/mips32/Makefile [subdir = misc]
	(sysdep_routines): Add libc-do-syscall.
	* sysdeps/unix/sysv/linux/mips/mips32/Versions (libc): Add
	`__mips_syscall5', `__mips_syscall6' and `__mips_syscall7'.
2017-08-29 18:31:08 +01:00
Adhemerval Zanella
01b87c656f ia64: Fix thread stack allocation permission set (BZ #21672)
This patch fixes ia64 failures on thread exit by madvise the required
area taking in consideration its disjoing stacks
(NEED_SEPARATE_REGISTER_STACK).  Also the snippet that setup the
madvise call to advertise kernel the area won't be used anymore in
near future is reallocated in allocatestack.c (for consistency to
put all stack management function in one place).

Checked on x86_64-linux-gnu and i686-linux-gnu for sanity (since
it is not expected code changes for architecture that do not
define NEED_SEPARATE_REGISTER_STACK) and also got a report that
it fixes ia64-linux-gnu failures from Sergei Trofimovich
<slyfox@gentoo.org>.

	[BZ #21672]
	* nptl/allocatestack.c [_STACK_GROWS_DOWN] (setup_stack_prot):
	Set to use !NEED_SEPARATE_REGISTER_STACK as well.
	(advise_stack_range): New function.
	* nptl/pthread_create.c (START_THREAD_DEFN): Move logic to mark
	stack non required to advise_stack_range at allocatestack.c
2017-08-29 13:29:19 -03:00
Szabolcs Nagy
16f138a49a [AArch64] Fix procfs.h not to expose stdint.h types
Commit 39e7a5a668 added stdint.h
to sys/procfs.h, but it is included into signal.h by default and
there is code that does not expect stdint.h to be visible there,
so use __uint64_t instead of uint64_t.
2017-08-29 16:54:33 +01:00
Florian Weimer
251bccfa1f iconv_open: Fix heap corruption on gconv_init failure [BZ #22026]
Also mangle the __end_fct function pointer on the error handling
path.
2017-08-29 17:33:58 +02:00
Florian Weimer
e7c18b9d0a iconv: Mangle __btowc_fct even without __init_fct [BZ #22025] 2017-08-29 17:16:09 +02:00
Joseph Myers
7daada0319 Fix bits/math-finite.h _MSUF_ expansion namespace (bug 22028).
The current bits/math-finite.h approach to defining functions for
different types, involving math.h defining _MSUF_ and _MSUFTO_ for the
function suffixes involved, is not namespace-clean if one of those
suffixes (f, l, f128) is defined as a macro by the user before math.h
is included; too many levels of macro expansion occur.  Instead, those
suffixes should appear directly in the expansion of the macro using ##
so they don't get expanded even if defined as macros by the user (that
is, math.h should be defining __REDIRFROM_X and __REDIRTO_X directly
to use those suffixes rather than suffixes being passed as an argument
by macro callers).  This patch makes that change.

Tested for x86_64.

	[BZ #22028]
	* math/math.h [__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0]
	(_MSUF_): Remove macro.
	[__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0] (_MSUFTO_):
	Likewise.
	[__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0]
	(__REDIRFROM_X): New macro.
	[__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0] (__REDIRTO_X):
	Likewise.
	* math/bits/math-finite.h (__REDIRFROM_X): Remove macro.
	(__REDIRTO_X): Likewise.
	(__MATH_REDIRCALL): Do not pass _MSUF_ or _MSUFTO_ macro
	arguments.
	(__MATH_REDIRCALL_2): Likewise.
	(__MATH_REDIRCALL_INTERNAL): Likewise.
	(__REDIRFROM (lgamma, , _MSUF_)): Likewise.
	(__REDIRFROM (gamma, , _MSUF_)): Likweise.
	(__REDIRFROM (__gamma, _r_finite, _MSUF_)): Likewise.
	(__REDIRFROM (tgamma, , _MSUF_)): Likewise.
	* math/test-finite-macros.c: New file.
	* math/Makefile (tests): Add test-finite-macros.
	(CFLAGS-test-finite-macros.c): New variable.
2017-08-29 14:15:37 +00:00
Patsy Franklin
1cf1232cd4 gconv: Consistently mangle NULL function pointers [BZ #22025]
Not mangling NULL pointers is not safe because with very low
probability, a non-NULL function pointer can turn into a NULL pointer
after mangling.
2017-08-29 15:53:28 +02:00
Mike FABIAN
f11f2f6e14 Use “,” as mon_decimal_point for ru_RU and os_RU locales (follow CLDR)
[BZ #13805]
	* locales/ru_RU (LC_MONETARY): Use “,” for mon_decimal_point
	(to agree with CLDR).
	* locales/ru_RU (LC_NUMERIC): Write mon_decimal_point in ASCII
	for readability.
	* locales/os_RU (LC_MONETARY): Copy from ru_RU,
	makes it agree with CLDR.
2017-08-29 13:56:41 +02:00
Akhilesh Kumar
f8de9568d8 Add locale for mfe_MU
Add locale for “Morisyen” which is also called “Mauritian Creole”
and is spoken in Mauritius.

	[BZ #21971]
	* localedata/SUPPORTED: Add mfe_MU/UTF-8.
	* localedata/locales/mfe_MU: New File.

	[BZ #21971]
	* locale/iso-639.def: add Morisyen.
2017-08-29 13:56:41 +02:00
Mike FABIAN
15cf43a999 Use NFC for the strings in “day”, “yesstr”, and “nostr” in the sgs_LT locale
* locales/sgs_LT (LC_TIME): Use NFC for the strings in “day”.
	* locales/sgs_LT (LC_MESSAGES): Use NFC for “yesstr” and “nostr”.
2017-08-29 13:55:42 +02:00
Gabriel F. T. Gomes
42496114ec Provide a C++ version of iszero that does not use __MATH_TG (bug 21930)
When signaling nans are enabled (with -fsignaling-nans), the C++ version
of iszero uses the fpclassify macro, which is defined with __MATH_TG.
However, when support for float128 is available, __MATH_TG uses the
builtin __builtin_types_compatible_p, which is only available in C mode.

This patch refactors the C++ version of iszero so that it uses function
overloading to select between the floating-point types, instead of
relying on fpclassify and __MATH_TG.

Tested for powerpc64le, s390x, x86_64, and with build-many-glibcs.py.

	[BZ #21930]
	* math/math.h [defined __cplusplus && defined __SUPPORT_SNAN__]
	(iszero): New C++ implementation that does not use
	fpclassify/__MATH_TG/__builtin_types_compatible_p, when
	signaling nans are enabled, since __builtin_types_compatible_p
	is a C-only feature.
	* math/test-math-iszero.cc: When __HAVE_DISTINCT_FLOAT128 is
	defined, include ieee754_float128.h for access to the union and
	member ieee854_float128.ieee.
	[__HAVE_DISTINCT_FLOAT128] (do_test): Call check_float128.
	[__HAVE_DISTINCT_FLOAT128] (check_float128): New function.
	* sysdeps/powerpc/powerpc64le/Makefile [subdir == math]
	(CXXFLAGS-test-math-iszero.cc): Add -mfloat128 to the build
	options of test-math-zero on powerpc64le.
2017-08-28 15:22:37 -03:00
Akhilesh Kumar
56bc7f4360 Fix country_name in zu_ZA to agree with CLDR
[BZ #21959]
	* locales/zu_ZA (LC_ADDRESS): Fix country name to agree with CLDR.
2017-08-28 17:51:08 +02:00
H.J. Lu
5e2bc4ff33 x86_64 __redirect_ieee754_expf: Change double to float
__redirect_ieee754_expf has type float, not double.

	* sysdeps/x86_64/fpu/multiarch/e_expf.c (__redirect_ieee754_expf):
	Change double to float.
2017-08-28 08:45:53 -07:00
Joseph Myers
a48c0fb4b4 Simplify math-svid-compat code.
Now there are no more assembly wrappers using _LIB_VERSION or
__kernel_standard, the math-svid-compat code can be slighly
simplified.  math-svid-compat.h no longer needs __ASSEMBLER__
conditionals, and the _LIB_VERSION variable no longer needs to be
built for static libm, since all references are now in C code that
includes math-svid-compat.h and so gets the macro definition of
_LIB_VERSION to _POSIX_ outside the compat case.  This patch makes
those cleanups.

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

	* math/math-svid-compat.h [!__ASSEMBLER__]: Make code
	unconditional.
	* sysdeps/ieee754/s_lib_version.c [!defined SHARED]: Remove
	conditional code; define contents only for [LIBM_SVID_COMPAT].
2017-08-28 15:19:52 +00:00
Florian Weimer
ee17d4e99a Remove abi-*-options compiler flags
These options are no longer needed since commit
2dba5ce7b8 (<bits/syscall.h>: Use an
arch-independent system call list on Linux).
2017-08-28 17:16:53 +02:00
Samuel Thibault
45a4f49ee5 hurd: Remove duplicate symbol version
* hurd/Versions (GLIBC_2.4): Remove __stack_chk_fail.
* mach/Versions (GLIBC_2.4): Remove __stack_chk_fail.
2017-08-28 14:19:55 +02:00
Samuel Thibault
6f4fc73ec9 hurd: Fix typo
* hurd/Versions: Fix typo.
* mach/Versions: Fix typo.
2017-08-28 14:16:50 +02:00
Florian Weimer
2dba5ce7b8 <bits/syscall.h>: Use an arch-independent system call list on Linux
This commit changes the way the list of SYS_* system call macros is
created on Linux.  glibc now contains a list of all known system
calls, and the generated <bits/syscall.h> file defines the SYS_ macro
only if the correspnding __NR_ macro is defined by the kernel headers.

As a result, glibc does not have to be rebuilt to pick up system calls
if the glibc sources already know about them.  This means that glibc
can be built with older kernel headers, and if the installed kernel
headers are upgraded afterwards, additional SYS_ macros become
available as long as glibc has a record for those system calls.
2017-08-28 11:58:52 +02:00
Paul Pluzhnikov
5f3b183d19 2017-08-27 Paul Pluzhnikov <ppluzhnikov@google.com>
* stdlib/Makefile (tst-atexit, tst-at_quick_exit): New tests.
	(tst-cxa_atexit, tst-on_exit): Likewise.
	* stdlib/Makefile (tests): Add tst-atexit, tst-at_quick_exit,
	tst-cxa_atexit, and tst-on_exit.
	* stdlib/tst-atexit-common.c: New file.
	* stdlib/tst-atexit.c: New file.
	* stdlib/tst-at_quick_exit.c: New file.
	* stdlib/tst-cxa_atexit.c: New file.
	* stdlib/tst-on_exit.c: New file.
2017-08-27 19:10:40 -07:00
Samuel Thibault
99ee4d26dc hurd: Fix static initialization with -fstack-protector-strong
When linked statically, TLS initialization is not achieved before
mach_init and alike, so ssp accesses to tcbhead's stack_guard would
crash.  We can just avoid using ssp in the few functions needed before
TLS is set up.

	* mach/Makefile (CFLAGS-mach_init.o, CFLAGS-RPC_vm_statistics.o,
	CFLAGS-RPC_vm_map.o, CFLAGS-RPC_vm_protect.o,
	CFLAGS-RPC_i386_set_gdt.o, CFLAGS-RPC_i386_set_ldt.o,
	CFLAGS-RPC_task_get_special_port.o): Add $(no-stack-protector).
	* hurd/Makefile (CFLAGS-hurdstartup.o,
	CFLAGS-RPC_exec_startup_get_info.o): Add $(no-stack-protector).
2017-08-27 22:29:43 +02:00
Samuel Thibault
97e02ad233 hurd: fix build with -fstack-protector-strong
libmachuser and libhurduser also need stack_chk_fail_local and they do not
link against libc_nonshared.

       * mach/stack_chk_fail_local.c: New file.
       * hurd/stack_chk_fail_local.c: New file.
       * mach/Machrules ($(interface-library)-routines): Add
       stack_chk_fail_local.
       * mach/Versions (GLIBC_2.4): Add __stack_chk_fail.
       * hurd/Versions (GLIBC_2.4): Add __stack_chk_fail.
2017-08-27 22:10:17 +02:00
Samuel Thibault
2ef8d46913 hurd: Add system-specific sysmacros.h
* sysdeps/mach/hurd/bits/sysmacros.h: New file.
2017-08-27 22:00:23 +02:00
H.J. Lu
7ab70c98e8 x86: Remove assembly versions of index_cpu_*/index_arch_*
Since assembly versions of HAS_CPU_FEATURE and HAS_ARCH_FEATURE have
been removed,  assembly versions of index_cpu_* and index_arch_* can
also be removed.

Tested on i686 and x86-64 with and without --disable-multi-arch.

	* sysdeps/x86/cpu-features.h [__ASSEMBLER__]
	(index_cpu_*, index_arch_*): Removed.
2017-08-25 10:51:04 -07:00
Szabolcs Nagy
39e7a5a668 [AArch64] Fix elf_greg_t on ILP32
Use uint64_t instead of unsigned long.
2017-08-25 18:21:35 +01:00
Joseph Myers
a6ccdb0839 Use __HAVE_DISTINCT_FLOAT128 in tgmath.h.
When _Float128 is ABI-equivalent to long double, there is no need for
tgmath.h to have any special _Float128 handling: it's always OK to
call the long double versions of functions for _Float128 arguments in
that case, and the logic to determine return types is generic.  Thus,
this patch changes the use of __HAVE_FLOAT128 to
__HAVE_DISTINCT_FLOAT128, as a minor optimization to reduce the size
of the macro expansions in the ABI-equivalent case.

Tested for x86_64.

	* math/tgmath.h [__HAVE_FLOAT128]: Change conditional to
	[__HAVE_DISTINCT_FLOAT128].
2017-08-25 17:02:33 +00:00
Joseph Myers
23761119fe Clean up bits/math-finite.h for aliasing types.
This patch cleans up how bits/math-finite.h handles types that are
ABI-aliases of other types.

For such types, no __*_finite functions exist; instead,
bits/math-finite.h must redirect calls to a the functions for a
canonical choice of type for each floating-point format.  (For the
actual public interfaces, symbols need exporting for each type, even
those that are ABI-aliases, because of standard requirements that
programs can declare the functions themselves without including
<math.h>, but that does not apply to __*_finite.)

At present, there is a special-case conditional in bits/math-finite.h
on __MATH_DECLARING_LDOUBLE && defined __NO_LONG_DOUBLE_MATH to handle
redirecting long double function calls to double __*_finite.  This
patch replaces this by a more general mechanism.  math.h, before each
inclusion of bits/math-finite.h, defines _MSUFTO_ as the suffix to use
on the target of redirection, in addition to the existing _MSUF_.
This way, __MATH_DECLARING_LDOUBLE can go away, as can the special
conditional in bits/math-finite.h.  With this patch, math.h is now
prepared for the case of supporting float128 functions as aliases of
long double ones on platforms where long double is binary128, with
_MSUFTO_ appropriately defined for that case, and appropriate _MSUFTO_
definitions can easily be included when supporting _Float32 / _Float64
/ _Float32x / _Float64x (which will always be ABI-aliases of another
type when supported).

Tested for x86_64, and did a compilation test for ARM with
build-many-glibcs.py to cover the long double = double case.

	* math/math.h (_MSUFTO_): Define and undefine for each inclusion
	of <bits/math-finite.h>.
	(__MATH_DECLARING_LDOUBLE): Do not define and undefine for each
	inclusion of <bits/math-finite.h>.
	* math/bits/math-finite.h (__REDIRTO_X): Do not define
	conditionally on [__MATH_DECLARING_LDOUBLE && defined
	__NO_LONG_DOUBLE_MATH].
	(__MATH_REDIRCALL): Use _MSUFTO_ in __REDIRTO call.
	(__MATH_REDIRCALL_2): Likewise.
	(__MATH_REDIRCALL_INTERNAL): Likewise.
	(__REDIRFROM (lgamma, , _MSUF_)): Likewise.
	(__REDIRFROM (gamma, , _MSUF_)): Likewise.
	(__REDIRFROM (tgamma, , _MSUF_)): Likewise.
2017-08-25 16:11:13 +00:00
Joseph Myers
bba5c93094 Remove powerpc32 sqrt wrappers.
This patch removes the powerpc32-specific wrappers for sqrt and sqrtf.

These wrappers, by adding architecture-specific uses of _LIB_VERSION
and __kernel_standard, unnecessarily complicate cleanups of libm error
handling.  They also do not serve a useful optimization purpose.  GCC
knows about sqrt as a built-in function, and can generate direct calls
to a hardware square root instruction, either on its own, in the
-fno-math-errno case, or together with an inline check for the
argument being negative and a call to the out-of-line sqrt function
for error handling only in that case (and has been able to do so for a
long time).  Thus in practice the wrapper will only be called only in
the case of negative arguments, which is not a case it is useful to
optimize for.

Tested with build-many-glibcs.py for powerpc-linux-gnu-power4.

	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt_compat-power5.S:
	Remove file.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt_compat-ppc32.S:
	Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt_compat.c:
	Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf_compat-power5.S:
	Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf_compat-ppc32.S:
	Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf_compat.c:
	Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/w_sqrt_compat.S: Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/w_sqrtf_compat.S: Likewise.
	* sysdeps/powerpc/powerpc32/power5/fpu/w_sqrt_compat.S: Likewise.
	* sysdeps/powerpc/powerpc32/power5/fpu/w_sqrtf_compat.S: Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile
	(libm-sysdep-routines): Remove w_sqrt_compat-power5,
	w_sqrt_compat-ppc32, w_sqrtf_compat-power5 and
	w_sqrtf_compat-ppc32.
2017-08-25 11:33:04 +00:00
Gabriel F. T. Gomes
3d7b66f66c Fix the C++ version of issignaling when __NO_LONG_DOUBLE_MATH is defined
When __NO_LONG_DOUBLE_MATH is defined, __issignalingl is not available,
thus issignaling with long double argument should call __issignaling,
instead.

Tested for powerpc64le.

	* math/math.h [defined __cplusplus] (issignaling): In the long
	double case, call __issignalingl only if __NO_LONG_DOUBLE_MATH
	is not defined.  Call __issignaling, otherwise.
2017-08-24 16:06:42 -03:00
Adhemerval Zanella
ebd6f0076a Remove cancellation support for syscall generation
This patch removes the cancellation mark from the auto-generation syscall
script.  Now all the cancellable syscalls are done throught C code using
the SYSCALL_CANCEL macro.  It simplifies the assembly required to each
architecture port, since the SYSCALL_CANCEL uses the already defined
INLINE_SYSCALL macros, and allows a more straigh fix on cancellation
machanism (since no more specific assembly fixes will be required).

Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
aarch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu.A
Also with build-many-glibc.py with remaning touched architectures.

	* sysdeps/unix/make-syscalls.sh: Remove cancellable tagging for
	syscall definitions.
	* sysdeps/unix/syscall-template.S (SYSCALL_CANCELLABLE): Remove
	definition.
	* sysdeps/unix/sysv/linux/aarch64/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (__local_enable_asynccancel): Likewise.
	[IS_IN (libpthread)] (__local_disable_asynccancel): Likewise.
	[IS_IN (libc)] (__local_enable_asynccancel): Likewise.
	[IS_IN (libc)] (__local_enable_asynccancel): Likewise.
	[IS_IN (librt)] (__local_disable_asynccancel): Likewise.
	[IS_IN (librt)] (__local_disable_asynccancel): Likewise.
	(CENABLE): Likewise.
	(CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/arm/sysdep-cancel.h (PSEUDO): Remove
	defintion.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/i386/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h (PSEUDO):
	Remove definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	(SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/mips/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/sysv/linux/powerpc/powerpc32/sysdep-cancel.h: Remove file.
	* sysdeps/sysv/linux/powerpc/powerpc64/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/sysdep-cancel.h: New file.
	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/sh/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h: Remove file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sysdep-cancel.h: New file.
	* sysdeps/unix/sysv/linux/tile/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
2017-08-24 14:58:35 -03:00
Szabolcs Nagy
8aa48656bb Fix CFLAGS override in sysdeps/ieee754/dbl-64
Use += instead of = to avoid overriding target specific CFLAGS settings.
Ideally the settings in target Makefiles would have precedence, but the
Makefile inclusion order does not allow that, with this fix at least the
target settings are not dropped.
2017-08-24 15:56:11 +01:00
H.J. Lu
fcaaca412f x86-64: Regenerate libm-test-ulps for AVX512 mathvec tests
Update libm-test-ulps for AVX512 mathvec tests by running
“make regen-ulps” on Intel Xeon processor with AVX512.

	* sysdeps/x86_64/fpu/libm-test-ulps: Regenerated.
2017-08-23 09:11:55 -07:00
H.J. Lu
376b40a27a string/stratcliff.c: Replace int with size_t [BZ #21982]
Fix GCC 7 errors when string/stratcliff.c is compiled with -O3:

stratcliff.c: In function ‘do_test’:
cc1: error: assuming signed overflow does not occur when assuming that (X - c) <= X is always true [-Werror=strict-overflow]

	[BZ #21982]
	* string/stratcliff.c (do_test): Declare size, nchars, inner,
	middle and outer with size_t instead of int.  Repleace %d and
	%Zd with %zu in printf.  Update "MAX (0, nchars - 128)" and
	"MAX (outer, nchars - 64)" to support unsigned outer and
	nchars.  Also exit loop when outer == 0.
2017-08-23 08:23:02 -07:00
Adhemerval Zanella
2b0b9a1c85 Consolidate remaning non cancellable definitions
This patch consolidate the remaning non cancellable syscall definitions
on not-cancel.h header.  They are:

  * __fcntl_nocancel: Moved from fcntl.h to not-cancel.h.
  * __sigsuspend_nocancel: Removed since 988f991b50 it is not used or
    defined anymore.
  * __nanosleep_nocancel: Removed since 6f33fd046b it is defined on
    not-cancel.h.

Now all non-cancellable syscall definition are defined on not-cancel
(the only exceptions is the stdio symbol __fxprintf_nocancel which
uses non cancellable open and it is used on getopt implementation).

Checked on x86_64-linux-gnu and with build-many-glibc.py.

	* include/fcntl.h (__fcntl_nocancel): Remove definition.
	* include/signal.h (__sigsuspend_nocancel): Likewise.
	* include/time.h (__nanosleep_nocancel): Likewise.
	* sysdeps/generic/not-cancel.h (__fcntl_nocancel): New macro.
	* login/utmp_file.c: Include non cancellable syscall header.
	* sysdeps/unix/sysv/linux/not-cancel.h (__fcntl_nocancel): New
	prototype.
2017-08-23 10:47:03 -03:00