Commit Graph

34589 Commits

Author SHA1 Message Date
Paul Eggert
583dd860d5 regex: fix read overrun [BZ #24114]
Problem found by AddressSanitizer, reported by Hongxu Chen in:
https://debbugs.gnu.org/34140
* posix/regexec.c (proceed_next_node):
Do not read past end of input buffer.
2019-01-31 13:18:56 -08:00
Florian Weimer
2bac7daa58 nss_files: Fix /etc/aliases null pointer dereference [BZ #24059]
If /etc/aliases ends with a continuation line (a line that starts
with whitespace) which does not have a trailing newline character,
the file parser would crash due to a null pointer dereference.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2019-01-31 18:49:58 +01:00
Siddhesh Poyarekar
de44ab67aa Open master for 2.30 development 2019-01-31 22:39:14 +05:30
Siddhesh Poyarekar
56c86f5dd5 Tag 2.29 release
* version.h (RELEASE): Set to "stable".
	(VERSION): Set to "2.29".
	* include/features.h (__GLIBC_MINOR__): Set to 2.29.
2019-01-31 22:15:36 +05:30
Siddhesh Poyarekar
330c9d0db1 Prepare for 2.29 release
* NEWS: Add the list of bugs fixed in 2.29.
	* manual/contrib.texi: Update contributors list with some more
	names.
 	* manual/install.texi: Update latest versions of packages
 	tested.
 	* INSTALL: Regenerated.
2019-01-31 22:01:21 +05:30
Siddhesh Poyarekar
e1e47c912a Update translations
Update translations from translationproject.org for 2.28.9000.
2019-01-25 22:05:42 +05:30
Adhemerval Zanella
83e6b59625 [elf] Revert 8e889c5da3 (BZ#24122)
It triggers an invalid build issue on GCC8+ and does not covers all
corner cases.
2019-01-25 08:10:15 -02:00
Samuel Thibault
b96e22d080 hurd: Fix initial sigaltstack state
Previous commit fixed
[BZ #24110]
2019-01-24 20:16:23 +01:00
Darius Rad
22ff602427 RISC-V: Update nofpu ULPs
This patch fixes 36 math related test failures.
2019-01-24 13:55:05 -05:00
Uroš Bizjak
8d0168264a alpha: Fix __remqu corrupting $f3 register
There was missing restore of $f3 before the return from the function
via the $y_is_neg path.  This caused the math/big testcase from Go-1.11
testsuite (that includes lots of corner cases that exercise remqu) FAIL.

	[BZ #24130]
	* sysdeps/alpha/remqu.S (__remqu): Add missing restore
	of $f3 register on $y_is_neg path.
2019-01-24 10:28:13 -08:00
Samuel Thibault
a0bb5abd09 hurd: Fix initial sigaltstack state
* hurd/hurdsig.c (_hurd_thread_sigstate): Set SS_DISABLE in
	sigaltstack.ss_flags.
2019-01-24 19:27:00 +01:00
TAMUKI Shoichi
32f600a272 strftime: Pass the additional flags from "%EY" to "%Ey" [BZ #24096]
The full representation of the alternative calendar year (%EY)
typically includes an internal use of "%Ey".  As a GNU extension,
apply any flags on "%EY" (e.g. "%_EY", "%-EY") to the internal "%Ey",
allowing users of "%EY" to control how the year is padded.

Reviewed-by: Rafal Luzynski <digitalfreak@lingonborough.com>
Reviewed-by: Zack Weinberg <zackw@panix.com>

ChangeLog:

	[BZ #24096]
	* manual/time.texi (strftime): Document "%EC" and "%EY".
	* time/Makefile (tests): Add tst-strftime2.
	(LOCALES): Add ja_JP.UTF-8, lo_LA.UTF-8, and th_TH.UTF-8.
	* time/strftime_l.c (__strftime_internal): Add argument yr_spec to
	override padding for "%Ey".
	If an optional flag ('_' or '-') is specified to "%EY", interpret the
	"%Ey" in the subformat as if decorated with that flag.
	* time/tst-strftime2.c: New file.
2019-01-24 23:04:12 +09:00
TAMUKI Shoichi
b22eed3710 strftime: Set the default width of "%Ey" to 2 [BZ #23758]
In Japanese locales, strftime's alternative year format (%Ey) produces
a year numbered within a time period called an _era_.  A new era
typically begins when a new emperor is enthroned.  The result of "%Ey"
is therefore usually a one- or two-digit number.

Many programs that display Japanese era dates assume that the era year
is two digits wide.  To improve how these programs display dates
during the first nine years of a new era, change "%Ey" to pad one-
digit numbers on the left with a zero.  This change applies to all
locales.  It is expected to be harmless for other locales that use the
alternative year format (e.g. lo_LA and th_TH, in which "%Ey" produces
the year of the Buddhist calendar) as those calendars' year numbers
are already more than two digits wide, and this is not expected to
change.

This change needs to be in place before 2019-05-01 CE, as a new era is
scheduled to begin on that date.

Reviewed-by: Zack Weinberg <zackw@panix.com>
Reviewed-by: Rafal Luzynski <digitalfreak@lingonborough.com>

ChangeLog:

	[BZ #23758]
	* manual/time.texi (strftime): Document "%Ey".
	* time/strftime_l.c (__strftime_internal): Set the default width
	padding with zero of "%Ey" to 2.
2019-01-24 23:00:53 +09:00
Adhemerval Zanella
3367acdb34 hurd: Fix libsupport xsigstack build
Hurd does not support MAP_NORESERVE and MAP_STACK.

Checked on i686-gnu build.

	* support/xsigstack.c (MAP_NORESERVE, MAP_STACK): Define if they
	are not defined.
2019-01-24 09:38:49 -02:00
Adhemerval Zanella
8e889c5da3 elf: Fix LD_AUDIT for modules with invalid version (BZ#24122)
The error handling patch for invalid audit modules version access
invalid memory:

elf/rtld.c:

1454               unsigned int (*laversion) (unsigned int);
1455               unsigned int lav;
1456               if  (err_str == NULL
1457                    && (laversion = largs.result) != NULL
1458                    && (lav = laversion (LAV_CURRENT)) > 0
1459                    && lav <= LAV_CURRENT)
1460                 {
[...]
1526               else
1527                 {
1528                   /* We cannot use the DSO, it does not have the
1529                      appropriate interfaces or it expects something
1530                      more recent.  */
1531 #ifndef NDEBUG
1532                   Lmid_t ns = dlmargs.map->l_ns;
1533 #endif
1534                   _dl_close (dlmargs.map);
1535
1536                   /* Make sure the namespace has been cleared entirely.  */
1537                   assert (GL(dl_ns)[ns]._ns_loaded == NULL);
1538                   assert (GL(dl_ns)[ns]._ns_nloaded == 0);
1539
1540                   GL(dl_tls_max_dtv_idx) = tls_idx;
1541                   goto not_loaded;
1542                 }

1431           const char *err_str = NULL;
1432           bool malloced;
1433           (void) _dl_catch_error (&objname, &err_str, &malloced, dlmopen_doit,
1434                                   &dlmargs);
1435           if (__glibc_unlikely (err_str != NULL))
1436             {
1437             not_loaded:
1438               _dl_error_printf ("\
1439 ERROR: ld.so: object '%s' cannot be loaded as audit interface: %s; ignored.\n",
1440                                 name, err_str);
1441               if (malloced)
1442                 free ((char *) err_str);
1443             }

On failure the err_str will be NULL and _dl_debug_vdprintf does not handle
it properly:

elf/dl-misc.c:
200             case 's':
201               /* Get the string argument.  */
202               iov[niov].iov_base = va_arg (arg, char *);
203               iov[niov].iov_len = strlen (iov[niov].iov_base);
204               if (prec != -1)
205                 iov[niov].iov_len = MIN ((size_t) prec, iov[niov].iov_len);
206               ++niov;
207               break;

This patch fixes the issues and improves the error message.

Checked on x86_64-linux-gnu and i686-linux-gnu

	[BZ #24122]
	* elf/Makefile (tests): Add tst-audit13.
	(modules-names): Add tst-audit13mod1.
	(tst-audit13.out, LDFLAGS-tst-audit13mod1.so, tst-audit13-ENV): New
	rule.
	* elf/rtld.c (dl_main): Handle invalid audit module version.
	* elf/tst-audit13.c: New file.
	* elf/tst-audit13mod1.c: Likewise.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2019-01-24 09:38:43 -02:00
Samuel Thibault
ee4d79026d hurd: Support AT_EMPTY_PATH
* hurd/lookup-at.c (__file_name_lookup_at): When at_flags contains
	AT_EMPTY_PATH, call __dir_lookup and __hurd_file_name_lookup_retry
	directly instead of __hurd_file_name_lookup.
2019-01-22 23:41:13 +01:00
Samuel Thibault
a95dc01c9e hurd: Check at_flags passed to faccessat
* sysdeps/mach/hurd/faccessat.c (__faccessat_common): Check for errors
	returned by __hurd_at_flags.
2019-01-22 22:47:10 +01:00
Joseph Myers
712f1167b4 Use binutils 2.32 branch in build-many-glibcs.py.
* scripts/build-many-glibcs.py (Context.checkout): Default
	binutils version to 2.32 branch.
2019-01-21 22:51:18 +00:00
Florian Weimer
108bc4049f CVE-2016-10739: getaddrinfo: Fully parse IPv4 address strings [BZ #20018]
The IPv4 address parser in the getaddrinfo function is changed so that
it does not ignore trailing whitespace and all characters after it.
For backwards compatibility, the getaddrinfo function still recognizes
legacy name syntax, such as 192.000.002.010 interpreted as 192.0.2.8
(octal).

This commit does not change the behavior of inet_addr and inet_aton.
gethostbyname already had additional sanity checks (but is switched
over to the new __inet_aton_exact function for completeness as well).

To avoid sending the problematic query names over DNS, commit
6ca53a2453 ("resolv: Do not send queries
for non-host-names in nss_dns [BZ #24112]") is needed.
2019-01-21 21:26:03 +01:00
H.J. Lu
5165de69c0 x86-64 strnlen/wcsnlen: Properly handle the length parameter [BZ# 24097]
On x32, the size_t parameter may be passed in the lower 32 bits of a
64-bit register with the non-zero upper 32 bits.  The string/memory
functions written in assembly can only use the lower 32 bits of a
64-bit register as length or must clear the upper 32 bits before using
the full 64-bit register for length.

This pach fixes strnlen/wcsnlen for x32.  Tested on x86-64 and x32.  On
x86-64, libc.so is the same with and withou the fix.

	[BZ# 24097]
	CVE-2019-6488
	* sysdeps/x86_64/multiarch/strlen-avx2.S: Use RSI_LP for length.
	Clear the upper 32 bits of RSI register.
	* sysdeps/x86_64/strlen.S: Use RSI_LP for length.
	* sysdeps/x86_64/x32/Makefile (tests): Add tst-size_t-strnlen
	and tst-size_t-wcsnlen.
	* sysdeps/x86_64/x32/tst-size_t-strnlen.c: New file.
	* sysdeps/x86_64/x32/tst-size_t-wcsnlen.c: Likewise.
2019-01-21 11:36:47 -08:00
H.J. Lu
c7c54f65b0 x86-64 strncpy: Properly handle the length parameter [BZ# 24097]
On x32, the size_t parameter may be passed in the lower 32 bits of a
64-bit register with the non-zero upper 32 bits.  The string/memory
functions written in assembly can only use the lower 32 bits of a
64-bit register as length or must clear the upper 32 bits before using
the full 64-bit register for length.

This pach fixes strncpy for x32.  Tested on x86-64 and x32.  On x86-64,
libc.so is the same with and withou the fix.

	[BZ# 24097]
	CVE-2019-6488
	* sysdeps/x86_64/multiarch/strcpy-avx2.S: Use RDX_LP for length.
	* sysdeps/x86_64/multiarch/strcpy-sse2-unaligned.S: Likewise.
	* sysdeps/x86_64/multiarch/strcpy-ssse3.S: Likewise.
	* sysdeps/x86_64/x32/Makefile (tests): Add tst-size_t-strncpy.
	* sysdeps/x86_64/x32/tst-size_t-strncpy.c: New file.
2019-01-21 11:35:34 -08:00
H.J. Lu
ee915088a0 x86-64 strncmp family: Properly handle the length parameter [BZ# 24097]
On x32, the size_t parameter may be passed in the lower 32 bits of a
64-bit register with the non-zero upper 32 bits.  The string/memory
functions written in assembly can only use the lower 32 bits of a
64-bit register as length or must clear the upper 32 bits before using
the full 64-bit register for length.

This pach fixes the strncmp family for x32.  Tested on x86-64 and x32.
On x86-64, libc.so is the same with and withou the fix.

	[BZ# 24097]
	CVE-2019-6488
	* sysdeps/x86_64/multiarch/strcmp-avx2.S: Use RDX_LP for length.
	* sysdeps/x86_64/multiarch/strcmp-sse42.S: Likewise.
	* sysdeps/x86_64/strcmp.S: Likewise.
	* sysdeps/x86_64/x32/Makefile (tests): Add tst-size_t-strncasecmp,
	tst-size_t-strncmp and tst-size_t-wcsncmp.
	* sysdeps/x86_64/x32/tst-size_t-strncasecmp.c: New file.
	* sysdeps/x86_64/x32/tst-size_t-strncmp.c: Likewise.
	* sysdeps/x86_64/x32/tst-size_t-wcsncmp.c: Likewise.
2019-01-21 11:34:04 -08:00
H.J. Lu
82d0b4a4d7 x86-64 memset/wmemset: Properly handle the length parameter [BZ# 24097]
On x32, the size_t parameter may be passed in the lower 32 bits of a
64-bit register with the non-zero upper 32 bits.  The string/memory
functions written in assembly can only use the lower 32 bits of a
64-bit register as length or must clear the upper 32 bits before using
the full 64-bit register for length.

This pach fixes memset/wmemset for x32.  Tested on x86-64 and x32.  On
x86-64, libc.so is the same with and withou the fix.

	[BZ# 24097]
	CVE-2019-6488
	* sysdeps/x86_64/multiarch/memset-avx512-no-vzeroupper.S: Use
	RDX_LP for length.  Clear the upper 32 bits of RDX register.
	* sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S: Likewise.
	* sysdeps/x86_64/x32/Makefile (tests): Add tst-size_t-wmemset.
	* sysdeps/x86_64/x32/tst-size_t-memset.c: New file.
	* sysdeps/x86_64/x32/tst-size_t-wmemset.c: Likewise.
2019-01-21 11:32:37 -08:00
H.J. Lu
ecd8b842cf x86-64 memrchr: Properly handle the length parameter [BZ# 24097]
On x32, the size_t parameter may be passed in the lower 32 bits of a
64-bit register with the non-zero upper 32 bits.  The string/memory
functions written in assembly can only use the lower 32 bits of a
64-bit register as length or must clear the upper 32 bits before using
the full 64-bit register for length.

This pach fixes memrchr for x32.  Tested on x86-64 and x32.  On x86-64,
libc.so is the same with and withou the fix.

	[BZ# 24097]
	CVE-2019-6488
	* sysdeps/x86_64/memrchr.S: Use RDX_LP for length.
	* sysdeps/x86_64/multiarch/memrchr-avx2.S: Likewise.
	* sysdeps/x86_64/x32/Makefile (tests): Add tst-size_t-memrchr.
	* sysdeps/x86_64/x32/tst-size_t-memrchr.c: New file.
2019-01-21 11:30:12 -08:00
H.J. Lu
231c56760c x86-64 memcpy: Properly handle the length parameter [BZ# 24097]
On x32, the size_t parameter may be passed in the lower 32 bits of a
64-bit register with the non-zero upper 32 bits.  The string/memory
functions written in assembly can only use the lower 32 bits of a
64-bit register as length or must clear the upper 32 bits before using
the full 64-bit register for length.

This pach fixes memcpy for x32.  Tested on x86-64 and x32.  On x86-64,
libc.so is the same with and withou the fix.

	[BZ# 24097]
	CVE-2019-6488
	* sysdeps/x86_64/multiarch/memcpy-ssse3-back.S: Use RDX_LP for
	length.  Clear the upper 32 bits of RDX register.
	* sysdeps/x86_64/multiarch/memcpy-ssse3.S: Likewise.
	* sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S:
	Likewise.
	* sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:
	Likewise.
	* sysdeps/x86_64/x32/Makefile (tests): Add tst-size_t-memcpy.
	tst-size_t-wmemchr.
	* sysdeps/x86_64/x32/tst-size_t-memcpy.c: New file.
2019-01-21 11:27:36 -08:00
H.J. Lu
b304fc201d x86-64 memcmp/wmemcmp: Properly handle the length parameter [BZ# 24097]
On x32, the size_t parameter may be passed in the lower 32 bits of a
64-bit register with the non-zero upper 32 bits.  The string/memory
functions written in assembly can only use the lower 32 bits of a
64-bit register as length or must clear the upper 32 bits before using
the full 64-bit register for length.

This pach fixes memcmp/wmemcmp for x32.  Tested on x86-64 and x32.  On
x86-64, libc.so is the same with and withou the fix.

	[BZ# 24097]
	CVE-2019-6488
	* sysdeps/x86_64/multiarch/memcmp-avx2-movbe.S: Use RDX_LP for
	length.  Clear the upper 32 bits of RDX register.
	* sysdeps/x86_64/multiarch/memcmp-sse4.S: Likewise.
	* sysdeps/x86_64/multiarch/memcmp-ssse3.S: Likewise.
	* sysdeps/x86_64/x32/Makefile (tests): Add tst-size_t-memcmp and
	tst-size_t-wmemcmp.
	* sysdeps/x86_64/x32/tst-size_t-memcmp.c: New file.
	* sysdeps/x86_64/x32/tst-size_t-wmemcmp.c: Likewise.
2019-01-21 11:26:07 -08:00
H.J. Lu
97700a34f3 x86-64 memchr/wmemchr: Properly handle the length parameter [BZ# 24097]
On x32, the size_t parameter may be passed in the lower 32 bits of a
64-bit register with the non-zero upper 32 bits.  The string/memory
functions written in assembly can only use the lower 32 bits of a
64-bit register as length or must clear the upper 32 bits before using
the full 64-bit register for length.

This pach fixes memchr/wmemchr for x32.  Tested on x86-64 and x32.  On
x86-64, libc.so is the same with and withou the fix.

	[BZ# 24097]
	CVE-2019-6488
	* sysdeps/x86_64/memchr.S: Use RDX_LP for length.  Clear the
	upper 32 bits of RDX register.
	* sysdeps/x86_64/multiarch/memchr-avx2.S: Likewise.
	* sysdeps/x86_64/x32/Makefile (tests): Add tst-size_t-memchr and
	tst-size_t-wmemchr.
	* sysdeps/x86_64/x32/test-size_t.h: New file.
	* sysdeps/x86_64/x32/tst-size_t-memchr.c: Likewise.
	* sysdeps/x86_64/x32/tst-size_t-wmemchr.c: Likewise.
2019-01-21 11:24:13 -08:00
Florian Weimer
6ca53a2453 resolv: Do not send queries for non-host-names in nss_dns [BZ #24112]
Before this commit, nss_dns would send a query which did not contain a
host name as the query name (such as invalid\032name.example.com) and
then reject the answer in getanswer_r and gaih_getanswer_slice, using
a check based on res_hnok.  With this commit, no query is sent, and a
host-not-found error is returned to NSS without network interaction.
2019-01-21 09:26:41 +01:00
Florian Weimer
5e30b8ef07 resolv: Reformat inet_addr, inet_aton to GNU style 2019-01-21 08:59:42 +01:00
Florian Weimer
71effcea34 malloc: Revert fastbins to old-style atomics
Commit 6923f6db1e ("malloc: Use current
(C11-style) atomics for fastbin access") caused a substantial
performance regression on POWER and Aarch64, and the old atomics,
while hard to prove correct, seem to work in practice.
2019-01-18 22:38:32 +01:00
H.J. Lu
562f43620d Disable lazy binding on tests for minimal signal handler
Since MINSIGSTKSZ may not have sufficent stack space to allow lazy
binding, build tests for minimal signal handler with -Wl,-z,now to
disable lazy binding.

	* signal/Makefile (LDFLAGS-tst-minsigstksz-1): New.  Set to
	-Wl,-z,now.
	(LDFLAGS-tst-minsigstksz-2): Likewise.
	(LDFLAGS-tst-minsigstksz-3): Likewise.
	(LDFLAGS-tst-minsigstksz-3a): Likewise.
	(LDFLAGS-tst-minsigstksz-4): Likewise.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2019-01-18 08:56:51 -08:00
TAMUKI Shoichi
80dfa29874 manual: Fix the wording to "alternative" rather than "alternate"
ChangeLog:

	* manual/time.texi (strftime): Fix the wording to "alternative" rather
	than "alternate".
2019-01-18 00:53:40 +09:00
Paul Clarke
008b598e2a powerpc: Fix tiny bug in strncmp.c
A single underscore was omitted in
sysdeps/powerpc/powerpc64/multiarch/strncmp.c, resulting in use of
power8 version of strncmp instead of power9 version, with significant
performance degradation.

	* sysdeps/powerpc/powerpc64/multiarch/strncmp.c: Fix #ifdef.

Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
2019-01-16 12:18:58 -02:00
Zack Weinberg
fbbc9a4e34 Tests for minimal signal handler functionality in MINSIGSTKSZ space.
There is general agreement that the very short list of things that ISO
C says you can do in an async signal handler should all work when the
handler is running on an alternate signal stack with only MINSIGSTKSZ
space.  This patch adds tests to make sure those things do work.

To facilitate this, there is a new set of test support routines for
setting up alternate signal stacks; see support/xsignal.h for the API.

         * support/xsignal.h (xalloc_sigstack, xfree_sigstack)
         (xget_sigstack_location): New test support functions.
         * support/xsigstack.c: New file, implementing them.
         * support/tst-xsigstack.c: New test for them.
         * support/Makefile: Update.

         * signal/tst-minsigstksz-1.c
         * signal/tst-minsigstksz-2.c
         * signal/tst-minsigstksz-3.c
         * signal/tst-minsigstksz-3a.c
         * signal/tst-minsigstksz-4.c: New tests.
         * signal/Makefile: Run them.
2019-01-16 09:04:10 -05:00
Siddhesh Poyarekar
5f1135e4e5 Update libc.pot 2019-01-16 15:52:23 +05:30
Tulio Magno Quites Machado Filho
ecdacd34a2 Add XFAIL_ROUNDING_IBM128_LIBGCC to more fma() tests
Ignore 112 errors in math/test-ldouble-fma and math/test-ildouble-fma
when IBM 128-bit long double used.
These errors are caused by spurious overflows from libgcc.

	* math/libm-test-fma.inc (fma_test_data): Set
	XFAIL_ROUNDING_IBM128_LIBGCC to more tests.

Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
2019-01-15 16:35:10 -02:00
Rogerio Alves
56054664cc powerpc: fix tst-ucontext-ppc64-vscr test for POWER 5/6.
An error "impossible register constraint in 'asm'" was raised on POWER
5 and due to __vector __int128_t being used as operands without passing the
option -msvx to gcc.
This patch replaces "__vector __int128_t" with "__vector unsigned int"
which requires only -maltivec, available since POWER ISA 2.03, and which
is already passed to the compiler.

	* sysdeps/powerpc/powerpc64/tst-ucontext-ppc64-vscr.c:
	(do_test): Changed __vector __int128_t to __vector unsigned int.

Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
2019-01-15 16:26:28 -02:00
Leonardo Sandoval
1a153e47fc x86-64: Optimize strcat/strncat, strcpy/strncpy and stpcpy/stpncpy with AVX2
Optimize x86-64 strcat/strncat, strcpy/strncpy and stpcpy/stpncpy with AVX2.
It uses vector comparison as much as possible. In general, the larger the
source string, the greater performance gain observed, reaching speedups of
1.6x compared to SSE2 unaligned routines. Select AVX2 strcat/strncat,
strcpy/strncpy and stpcpy/stpncpy on AVX2 machines where vzeroupper is
preferred and AVX unaligned load is fast.

	* sysdeps/x86_64/multiarch/Makefile (sysdep_routines): Add
	strcat-avx2, strncat-avx2, strcpy-avx2, strncpy-avx2,
	stpcpy-avx2 and stpncpy-avx2.
	* sysdeps/x86_64/multiarch/ifunc-impl-list.c:
	(__libc_ifunc_impl_list): Add tests for __strcat_avx2,
	__strncat_avx2, __strcpy_avx2, __strncpy_avx2, __stpcpy_avx2
	and __stpncpy_avx2.
	* sysdeps/x86_64/multiarch/{ifunc-unaligned-ssse3.h =>
	ifunc-strcpy.h}: rename header for a more generic name.
	* sysdeps/x86_64/multiarch/ifunc-strcpy.h:
	(IFUNC_SELECTOR): Return OPTIMIZE (avx2) on AVX 2 machines if
	AVX unaligned load is fast and vzeroupper is preferred.
	* sysdeps/x86_64/multiarch/stpcpy-avx2.S: New file
	* sysdeps/x86_64/multiarch/stpncpy-avx2.S: Likewise
	* sysdeps/x86_64/multiarch/strcat-avx2.S: Likewise
	* sysdeps/x86_64/multiarch/strcpy-avx2.S: Likewise
	* sysdeps/x86_64/multiarch/strncat-avx2.S: Likewise
	* sysdeps/x86_64/multiarch/strncpy-avx2.S: Likewise
2019-01-14 09:43:38 -06:00
Dmitry V. Levin
a1b02ae763 Fix a few typos in comments
Apply the following spelling fixes:
$ git grep -F -l 'relevent' |
  xargs sed -i 's/relevent/relevant/g'
$ git grep -F -l 'checked fot' |
  xargs sed -i 's/checked fot/checked for/g'
$ git grep -F -l "could't" |
  xargs sed -i "s/could't/couldn't/g"
$ git grep -F -l 'wheter' | grep -Fv ChangeLog.old |
  xargs sed -i 's/wheter/whether/g'
$ git grep -F -l 'neccessary' | grep -Fv ChangeLog.old |
  xargs sed -i 's/neccessary/necessary/g'
$ git grep -F -l 'ouput' |
  xargs sed -i 's/ouput/output/g'
$ git grep -F -w -l 'iput' |
  xargs sed -i 's/iput/input/g'

This is inspired by a gnulib bug report at
https://lists.gnu.org/archive/html/bug-gnulib/2019-01/msg00081.html

* argp/argp-help.c: Fix typo in comment.
* misc/sys/cdefs.h: Likewise.
* posix/regexec.c (sift_states_iter_mb): Likewise.
* socket/sockatmark.c: Likewise.
* socket/sys/socket.h: Likewise.
* sysdeps/ia64/fpu/libm_sincos_large.S: Likewise.
* sysdeps/ia64/fpu/libm_sincosl.S: Likewise.
* sysdeps/ia64/fpu/s_cosl.S: Likewise.
* sysdeps/ieee754/dbl-64/k_rem_pio2.c: Likewise.
* sysdeps/unix/sockatmark.c: Likewise.
* time/strptime_l.c: Likewise.
2019-01-12 13:44:51 +00:00
TAMUKI Shoichi
5cbbf01ebe strftime: Consequently use the "L_" macro with character literals
ChangeLog:

	* time/strftime_l.c (__strftime_internal): Use "L_" macros, also add a
	missing space after the cast of "_NL_CURRENT".
2019-01-11 23:54:37 +01:00
Rogerio Alves
0bc9bdf159 powerpc: Fix VSCR position in ucontext (bug 24088)
This patch fix VSCR position on ucontext. VSCR was read in the wrong
position on ucontext structure because it was ignoring the machine
endianess.

	[BZ #24088]
	* sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h (vscr_t): Added
	ifdef to fix read of VSCR.
	* sysdeps/powerpc/powerpc64/Makefile [$subdir == stdlib]: Add
	tst-ucontext-ppc64-vscr.c to test list.
	* sysdeps/powerpc/powerpc64/tst-ucontext-ppc64-vscr.c: New test file.

Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
2019-01-11 15:17:25 -02:00
Andreas K. Hüttel
5494af04ad resolv: IDNA tests: AAAA (28) is valid, no fallthrough to default 2019-01-10 12:22:56 +01:00
Jim Wilson
e17f63ffa1
RISC-V: Update LP64D libm-test-ulps.
With this patch applied, I get 13 glibc testsuite failures using
TIMEOUTFACTOR=4 on a HiFive Unleashed running Fedora Core 29, using top of
tree binutils and gcc.  5 of those failures are due to a kernel bug.  Without
the patch, there are over a hundred failures.

This patch is incidentally similar to the powerpc-nofpu ulps update that
Joseph Myers added a few days ago.

	* sysdeps/riscv/rv64/rvd/libm-test-ulps: Update.
2019-01-09 13:48:26 -08:00
Wilco Dijkstra
02f440c1ef [AArch64] Add ifunc support for Ares
Add Ares to the midr_el0 list and support ifunc dispatch.  Since Ares
supports 2 128-bit loads/stores, use Neon registers for memcpy by
selecting __memcpy_falkor by default (we should rename this to
__memcpy_simd or similar).

	* manual/tunables.texi (glibc.cpu.name): Add ares tunable.
	* sysdeps/aarch64/multiarch/memcpy.c (__libc_memcpy): Use
	__memcpy_falkor for ares.
	* sysdeps/unix/sysv/linux/aarch64/cpu-features.h (IS_ARES):
	Add new define.
	* sysdeps/unix/sysv/linux/aarch64/cpu-features.c (cpu_list):
	Add ares cpu.
2019-01-09 10:35:34 +00:00
H.J. Lu
69da3c9e87 soft-fp: Properly check _FP_W_TYPE_SIZE [BZ #24066]
quad.h have

 #if _FP_W_TYPE_SIZE < 64

union _FP_UNION_Q
{
  Use 4 _FP_W_TYPEs
}

 #else

union _FP_UNION_Q
{
  Use 2 _FP_W_TYPEs
}

 #endif

Replace

 #if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q

with

 #if _FP_W_TYPE_SIZE < 64

to check whether 4 or 2 _FP_W_TYPEs are used for IEEE quad precision.
Tested with build-many-glibcs.py.

	[BZ #24066]
	* soft-fp/extenddftf2.c: Use "_FP_W_TYPE_SIZE < 64" to check if
	4_FP_W_TYPEs are used for IEEE quad precision.
	* soft-fp/extendhftf2.c: Likewise.
	* soft-fp/extendsftf2.c: Likewise.
	* soft-fp/extendxftf2.c: Likewise.
	* soft-fp/trunctfdf2.c: Likewise.
	* soft-fp/trunctfhf2.c: Likewise.
	* soft-fp/trunctfsf2.c: Likewise.
	* soft-fp/trunctfxf2.c: Likewise.
	* sysdeps/alpha/ots_cvttx.c: Likewise.
	* sysdeps/alpha/ots_cvtxt.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_daddl.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_ddivl.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_dmull.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_dsubl.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_faddl.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_fdivl.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_fmull.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_fsubl.c: Likewise.
	* sysdeps/sparc/sparc32/q_dtoq.c: Likewise.
	* sysdeps/sparc/sparc32/q_qtod.c: Likewise.
	* sysdeps/sparc/sparc32/q_qtos.c: Likewise.
	* sysdeps/sparc/sparc32/q_stoq.c: Likewise.
	* sysdeps/sparc/sparc64/qp_dtoq.c: Likewise.
	* sysdeps/sparc/sparc64/qp_qtod.c: Likewise.
	* sysdeps/sparc/sparc64/qp_qtos.c: Likewise.
	* sysdeps/sparc/sparc64/qp_stoq.c: Likewise.
2019-01-07 09:04:39 -08:00
Aurelien Jarno
2ef4271688 Only build libm with -fno-math-errno (bug 24024)
Commit 1294b1892e ("Add support for sqrt asm redirects") added the
-fno-math-errno flag to build most of the glibc in order to enable GCC
to inline math functions. Due to GCC bug #88576, saving and restoring
errno around calls to malloc are optimized-out. In turn this causes
strerror to set errno to ENOMEM if it get passed an invalid error number
and if malloc sets errno to ENOMEM (which might happen even if it
succeeds). This is not allowed by POSIX.

This patch changes the build flags, building only libm with
-fno-math-errno and all the remaining code with -fno-math-errno. This
should be safe as libm doesn't contain any code saving and restoring
errno around malloc. This patch can probably be reverted once the GCC
bug is fixed and available in stable releases.

Tested on x86-64, no regression in the testsuite.

Changelog:
	[BZ #24024]
	* Makeconfig: Build libm with -fno-math-errno but build the remaining
	code with -fmath-errno.
	* string/Makefile [$(build-shared)] (tests): Add test-strerror-errno.
	[$(build-shared)] (LDLIBS-test-strerror-errno): New variable.
	* string/test-strerror-errno.c: New file.
2019-01-07 14:59:07 +01:00
Aurelien Jarno
7395f3a0ef en_US: define date_fmt (bug 24046)
The en_US locale use a 12h am/pm format in both d_fmt and d_t_fmt, which
is correct, but does not define date_fmt. This causes the default value
to be used, which is in 24h format.

This patch adds the date_fmt entry to the en_US locale with the same
value as d_t_fmt as the latter already includes the timezone.

Changelog
	[BZ #24046]
	* localedata/locales/en_US (date_fmt): Add, set to
	"%a %d %b %Y %r %Z".
2019-01-07 14:51:13 +01:00
Florian Weimer
010fe23177 manual: Use @code{errno} instead of @var{errno} [BZ #24063]
@var is intended for placeholders (such as function parameters).
Actual variables need to use @code because @var causes upper-case
output, resulting in a different C identifier.
2019-01-07 11:42:04 +01:00
Adhemerval Zanella
b79dc8d0fe posix: Fix tst-spawn.c issue from commit 805334b26c
Checked on powerpc64le-linux-gnu.

	* posix/tst-spawn.c (do_test): Extend spargv to new required size and
	fix typo.
2019-01-05 11:58:47 -02:00
Rafal Luzynski
890461fe12 ChangeLog: Fix an obvious typo in the previous commit. 2019-01-05 00:34:24 +01:00