Commit Graph

29295 Commits

Author SHA1 Message Date
James Perkins
be13f5a4ba time/tst-strptime2.c: test full input range +/- 0-9999
strptime's %z specifier parses a string consisting of a sign ('+'
or '-'), two hours digits, and optionally two minutes digits, into a
tm.tm_gmtoff field containing the signed number of seconds the time
zone is offset from UTC time.

The time/tst-strptime2.c program passes a short list of strings through
strptime, validating that either the gmtoff value returned matches an
expected value, or that strptime returns an expected NULL for invalid
strings (for example, when the minutes portion of the string is outside
of the range 00 to 59, or the sign is missing before the hours digits).

In review of strptime fixes, Carlos O'Donell expressed a wish that
the test function iterate through the entire range of all possible
numeric strings (-9999 to +9999) which could be passed to strptime %z,
and validate the correct response.

Specifically, the test will look for a NULL response from strptime
when:

  * sign ('+' or '-') is not present before the first digit (invalid
    format).
  * A sign and no digits are found (invalid format).
  * A sign and one digit are found (invalid format).
  * A sign and three digits are found (invalid format).
  * A sign and four digits (-9999 to +9999) are found but the last
    two digits (minutes) are in the range 60 to 99.

The test will look for a success response from strptime with
tm.tm_gmtoff matching the calculated tm_gmtoff value when:

  * A sign and four digits are found (-9999 to +9999), and the last
    two digits (minutes) are in the range 00 to 59.
  * A sign and two digit strings are found (-99 to +99).

The test's iteration over the possible digit values results in 22223
test strings prepared, tested, and passed by strptime.

The test supports a --verbose command line option which will show
the test results of every test input, and a final summary of all
tests. Here is some sample output:

  PASS: input "1113472456  1030", expected: invalid, return value NULL
  PASS: input "1113472456 +", expected: invalid, return value NULL
  PASS: input "1113472456 -", expected: invalid, return value NULL
  PASS: input "1113472456 +0", expected: invalid, return value NULL
  PASS: input "1113472456 -0", expected: invalid, return value NULL
  PASS: input "1113472456 +1", expected: invalid, return value NULL
  ...
  PASS: input "1113472456 +9", expected: invalid, return value NULL
  PASS: input "1113472456 -9", expected: invalid, return value NULL
  PASS: input "1113472456 +00", expected: valid, tm.tm_gmtoff 0
  PASS: input "1113472456 -00", expected: valid, tm.tm_gmtoff 0
  PASS: input "1113472456 +01", expected: valid, tm.tm_gmtoff 3600
  PASS: input "1113472456 -01", expected: valid, tm.tm_gmtoff -3600
  PASS: input "1113472456 +02", expected: valid, tm.tm_gmtoff 7200
  ...
  PASS: input "1113472456 +99", expected: valid, tm.tm_gmtoff 356400
  PASS: input "1113472456 -99", expected: valid, tm.tm_gmtoff -356400
  PASS: input "1113472456 +000", expected: invalid, return value NULL
  PASS: input "1113472456 -000", expected: invalid, return value NULL
  PASS: input "1113472456 +001", expected: invalid, return value NULL
  ...
  PASS: input "1113472456 +999", expected: invalid, return value NULL
  PASS: input "1113472456 -999", expected: invalid, return value NULL
  PASS: input "1113472456 +0000", expected: valid, tm.tm_gmtoff 0
  PASS: input "1113472456 -0000", expected: valid, tm.tm_gmtoff 0
  PASS: input "1113472456 +0001", expected: valid, tm.tm_gmtoff 60
  PASS: input "1113472456 -0001", expected: valid, tm.tm_gmtoff -60
  ...
  PASS: input "1113472456 +0059", expected: valid, tm.tm_gmtoff 3540
  PASS: input "1113472456 -0059", expected: valid, tm.tm_gmtoff -3540
  PASS: input "1113472456 +0060", expected: invalid, return value NULL
  PASS: input "1113472456 -0060", expected: invalid, return value NULL
  ...
  PASS: input "1113472456 +0099", expected: invalid, return value NULL
  PASS: input "1113472456 -0099", expected: invalid, return value NULL
  PASS: input "1113472456 +0100", expected: valid, tm.tm_gmtoff 3600
  PASS: input "1113472456 -0100", expected: valid, tm.tm_gmtoff -3600
  PASS: input "1113472456 +0101", expected: valid, tm.tm_gmtoff 3660
  ...
  PASS: input "1113472456 +9999", expected: invalid, return value NULL
  PASS: input "1113472456 -9999", expected: invalid, return value NULL
  PASS: 22223 input strings: 0 fail, 22223 pass

Any failing test will result in printing the failed line to stdout, and
will trigger the printing of the summary line at the of all tests. For
example:

  FAIL: input "1113472456  1030", expected: invalid, return value NULL,
    got: valid, tm.tm_gmtoff 37800
  FAIL: 22223 input strings: 1 fail, 22222 pass
2015-08-28 23:48:10 -04:00
James Perkins
cccc95f28a strptime %z: fix rounding, extend range to +/-9959 [BZ #16141]
Topic: strptime supports a %z input field descriptor, which parses a
time zone offset from UTC time into the broken-out time field tm_gmtoff.

Problems:

1) In the current implementation, the minutes portion calculation is
correct only for minutes evenly divisible by 3. This is because the
minutes value is converted to decimal time, but inadequate precision
leads to rounding which calculates results that are too low for
some values.

For example, due to rounding, a +1159 offset string results in an
incorrect tm_gmtoff of 43128 (== 11 * 3600 + 58.8 * 60) seconds,
instead of 43140 (== 11 * 3600 + 59 * 60) seconds. In contrast,
a +1157 offset (minutes divisible by 3) does not cause the bug,
and results in a correct tm_gmtoff of 43020.

2) strptime's %z specifier will not parse time offsets less than
-1200 or greater than +1200, or if only hour digits are present, less
than -12 or greater than +12. It will return NULL for offsets outside
that range. These limits do not meet historical and modern use cases:

  * Present day exceeds the +1200 limit:
    - Pacific/Auckland (New Zealand) summer time is +1300.
    - Pacific/Kiritimati (Christmas Island) is +1400.
    - Pacific/Apia (Samoa) summer time is +1400.
  * Historical offsets exceeded +1500/-1500.
  * POSIX supports -2459 to +2559.
  * Offsets up to +/-9959 may occasionally be useful.
  * Paul Eggert's notes provide additional detail:
    - https://sourceware.org/ml/libc-alpha/2014-12/msg00068.html
    - https://sourceware.org/ml/libc-alpha/2014-12/msg00072.html

3) tst-strptime2, part of the 'make check' test suite, does not test
for the above problems.

Corrective actions:

1) In time/strptime_l.c, calculate the offset from the hour and
minute portions directly, without the rounding errors introduced by
decimal time.

2) Remove the +/-1200 range limit, permitting strptime to parse offsets
from -9959 through +9959.

3) Add zone offset values to time/tst-strptime2.c.

  * Test minutes evenly divisible by three (+1157) and not evenly
    divisible by three (+1158 and +1159).
  * Test offsets near the old and new range limits (-1201, -1330, -2459,
    -2500, -99, -9959, +1201, +1330, +1400, +1401, +2559, +2600, +99,
    and +9959)

The revised strptime passes all old and new tst-strptime2 tests.
2015-08-28 23:45:51 -04:00
H.J. Lu
315267abcd Mention 15786 in NEWS
commit f3dcae82d5
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Tue Aug 25 04:33:54 2015 -0700

    Save and restore vector registers in x86-64 ld.so

also fixed

https://sourceware.org/bugzilla/show_bug.cgi?id=15786
2015-08-28 12:54:49 -07:00
Adhemerval Zanella
d3573f61ac Fix wordsize-32 mmap offset for negative value (BZ#18877)
This patch fixes the default wordsize-32 mmap implementation offset
calculation for negative values.  Current code uses signed shift
operation to calculate the multiple size to use with syscall and
it is implementation defined.  Change it to use a division base
on mmap page size (default being as before, 4096).

Tested on armv7hf.

	[BZ #18877]
	* posix/Makefile (tests): Add tst-mmap-offset.
	* posix/tst-mmap.c: New file.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/mmap.c (__mmap): Fix
	offset calculation for negative values.
2015-08-28 10:42:07 -03:00
Joseph Myers
8c17cb1f64 Note bug 14941 as having been fixed in 2.18. 2015-08-27 22:37:51 +00:00
H.J. Lu
75dd0a8f3d Detect and select i586/i686 implementation at run-time
We detect i586 and i686 features at run-time by checking CX8 and CMOV
CPUID features bits.  We can use these information to select the best
implementation in ix86 multiarch.  HAS_I586/HAS_I686 is true if i586/i686
instructions are available on the processor.

Due to the reordering and the other nifty extensions in i686, it is not
really good to use heavily i586 optimized code on an i686.  It's better
to use i486 code if it isn't an i586.  USE_I586/USE_I686 is true if
i586/i686 implementation should be used for the processor.  USE_I586
is true only if i686 instructions aren't available.  If i686 instructions
are available, we always choose i686 or i486 implementation, in that order,
and we never choose i586 implementation for i686-class processors.

	* sysdeps/i386/init-arch.h: New file.
	* sysdeps/i386/i586/init-arch.h: Likewise.
	* sysdeps/i386/i686/init-arch.h: Likewise.
	* sysdeps/x86/cpu-features.c (init_cpu_features): Set bit_I586
	bit if CX8 is available.  Set bit_I686 bit if CMOV is available.
	* sysdeps/x86/cpu-features.h (bit_I586): New.
	(bit_I686): Likewise.
	(bit_CX8): Likewise.
	(bit_CMOV): Likewise.
	(index_CX8): Likewise.
	(index_CMOV): Likewise.
	(index_I586): Likewise.
	(index_I686): Likewise.
	(reg_CX8): Likewise.
	(reg_CMOV): Likewise.
	(HAS_I586): Defined as HAS_ARCH_FEATURE (I586) if i586 isn't
	available at compile-time.
	(HAS_I686): Defined as HAS_ARCH_FEATURE (I686) if i686 isn't
	available at compile-time.
	* sysdeps/x86/init-arch.h (USE_I586): New macro.
	(USE_I686): Likewise.
2015-08-27 09:06:44 -07:00
H.J. Lu
d226114b9b Add i386 memset and memcpy assembly functions
Add i386 memset and memcpy assembly functions with REP MOVSB/STOSB
instructions.

	* sysdeps/i386/bcopy.S: New file.
	* sysdeps/i386/bzero.S: Likewise.
	* sysdeps/i386/memcpy.S: Likewise.
	* sysdeps/i386/memmove.S: Likewise.
	* sysdeps/i386/mempcpy.S: Likewise.
	* sysdeps/i386/memset.S: Likewise.
	* sysdeps/i386/bzero.c: Removed.
	* sysdeps/i386/memset.c: Likewise.
	* sysdeps/i386/i586/memcpy_chk.S: Likewise.
	* sysdeps/i386/i586/mempcpy_chk.S: Likewise.
	* sysdeps/i386/i586/memset_chk.S: Likewise.
	* sysdeps/i386/i686/memcpy_chk.S: Moved to ...
	* sysdeps/i386/memcpy_chk.S: Here.
	* sysdeps/i386/i686/memmove_chk.S: Moved to ...
	* sysdeps/i386/memmove_chk.S: Here.
	* sysdeps/i386/i686/mempcpy_chk.S: Moved to ...
	* sysdeps/i386/mempcpy_chk.S: Likewise.
	* sysdeps/i386/i686/memset_chk.S: Moved to ...
	* sysdeps/i386/memset_chk.S: Likewise.
2015-08-27 09:04:54 -07:00
Steve Ellcey
37430363b8 Fix undefined warning messages in GCC 6.
GCC 6 puts out warnings in a different location then GCC 5.  Move the
    DIAG macros so that the warnings are supressed for both compilers.

    ChangeLog:

	* soft-fp/fmasf4.c: Add include of sys/cdefs.h.
	Move DIAG_PUSH_NEEDS_COMMENT, DIAG_IGNORE_NEEDS_COMMENT to front of
	file, move DIAG_POP_NEEDS_COMMENT to end of file.
	* soft-fp/fmadf4.c: Ditto.
	* soft-fp/fmatf4.c: Ditto.
2015-08-27 08:09:49 -07:00
H.J. Lu
ae857215dd Remove i486 subdirectory
Since glibc doesn't support i386 any more, we can remove i486 subdirectory.

	* sysdeps/i386/i586/Implies: Removed.
	* sysdeps/i386/i686/Implies: Likewise.
2015-08-27 07:59:29 -07:00
H.J. Lu
892bb11e4e Move i486/strlen.S to strlen.S
Since glibc doesn't support i386 any more, we can move i486/strlen.S
to strlen.S.

	* sysdeps/i386/i486/strlen.S: Moved to ...
	* sysdeps/i386/strlen.S: Here.
2015-08-27 07:57:55 -07:00
H.J. Lu
8964482ab8 Move i486/strcat.S to strcat.S
Since glibc doesn't support i386 any more, we can move i486/strcat.S
to strcat.S.

	* sysdeps/i386/i486/strcat.S: Moved to ...
	* sysdeps/i386/strcat.S: Here.
	* sysdeps/i386/i686/multiarch/strcat.S: Updated.
2015-08-27 07:56:41 -07:00
H.J. Lu
413db45d1b Move i486/pthread_spin_trylock.S to pthread_spin_trylock.S
Since glibc doesn't support i386 any more, we can move
i486/pthread_spin_trylock.S to pthread_spin_trylock.S

	* sysdeps/i386/i486/pthread_spin_trylock.S: Moved to ...
	* sysdeps/i386/pthread_spin_trylock.S: Here.
	* sysdeps/i386/i586/pthread_spin_trylock.S: Removed.
	* sysdeps/i386/i686/pthread_spin_trylock.S: Updated.
2015-08-27 07:55:29 -07:00
H.J. Lu
1894b3ea3c Move i486/string-inlines.c to string-inlines.c
Since glibc doesn't support i386 any more, we can move
i486/string-inlines.c to string-inlines.c.

	* sysdeps/i386/i486/string-inlines.c: Moved to ...
	* sysdeps/i386/string-inlines.c: Here.
2015-08-27 07:51:55 -07:00
H.J. Lu
267dfab1bd Move i486/htonl.S to htonl.S
Since glibc doesn't support i386 any more, we can move i486/htonl.S to
htonl.S.

	* sysdeps/i386/i486/htonl.S: Moved ...
	* sysdeps/i386/htonl.S: here.
2015-08-27 07:50:34 -07:00
H.J. Lu
e30680c07a Move i486/bits/atomic.h to bits/atomic.h
Since glibc doesn't support i386 any more, we can move i486/bits/atomic.h
to bits/atomic.h.

	* sysdeps/i386/i486/bits/atomic.h: Moved to ...
	* sysdeps/i386/bits/atomic.h: Here.
2015-08-27 07:49:22 -07:00
H.J. Lu
4d374e4d38 Remove sysdeps/i386/i486/Versions
sysdeps/i386/i486/Versions isn't needed since it duplicates contents
in sysdeps/i386/Versions.

	* sysdeps/i386/i486/Versions: Removed.
2015-08-27 07:45:14 -07:00
Gleb Fotengauer-Malinovskiy
64d9cfd90e Mention mkdtemp as another secure alternative to mktemp
[BZ #2898]
* misc/mktemp.c: Add mkdtemp to the link_warning message.
Based on patch by Aurelien Jarno.
2015-08-27 12:43:45 +00:00
Stan Shebs
fff289f358 Disable uninitialized warning with GCC 4.8
As with other spots in the code, GCC 4.8 unnecessarily complains about
an uninitialized variable in tanl calcs, so this patch disables.  With
it, the library and sees the usual set of test passes.

	* sysdeps/ieee754/ldbl-96/k_tanl.c: Include <libc-internal.h>.
	(__kernel_tanl): Ignore uninitialized warnings around use of SIGN.
2015-08-26 16:10:43 -07:00
Roland McGrath
55504a3df0 Meaningless ChangeLog cleanup to trigger buildbot. 2015-08-26 14:06:09 -07:00
Carlos Eduardo Seo
3c13f28c8e powerpc: Sync hwcap.h with kernel
Linux commit b4b56f9ecab40f3b4ef53e130c9f6663be491894 introduced
a new HWCAP2 bit to indicate that the kernel now aborts a memory
transaction when a syscall is made.  This patch adds that bit to
sysdeps/powerpc/bits/hwcap.h.

2015-08-26  Carlos Eduardo Seo  <cseo@linux.vnet.ibm.com>

	* sysdeps/powerpc/bits/hwcap.h: Add PPC_FEATURE2_HTM_NOSC.
	* sysdeps/powerpc/dl-procinfo.c:
	(_dl_powerpc_cap_flags): Added descriptor for this hwcap
	feature so it shows when LD_SHOW_AUXV=1.
2015-08-26 14:55:40 -03:00
Paul E. Murphy
6eb901de9b powerpc: Revert to default atomic ops in elision code
Power ISA 2.07B section B.5.5 relaxed the barrier requirement around a
TLE enabled lock.  It is now identical to a traditional lock.

2015-08-26  Paul E. Murphy  <murphyp@linux.vnet.ibm.com>

	* sysdeps/unix/sysv/linux/powerpc/elision-lock.c
	(__arch_compare_and_exchange_val_32_acq): Remove and use common
	definition.  ISA 2.07B no longer requires full sync.
2015-08-26 14:55:33 -03:00
Mike Frysinger
a2ab38c9b8 mips: siginfo.h: add SIGSYS details [BZ #18863]
Linux 3.13 added SIGSYS details to siginfo_t; update glibc's copy to
keep in sync with it.
2015-08-26 13:33:54 -04:00
H.J. Lu
f6b71eada3 Replace BZERO_P/PIC with USE_AS_BZERO/SHARED
Replace BZERO_P with USE_AS_BZERO in i586/i686 memset.S to support i386
multi-arch memset.  Also we should check SHARED not PIC for libc.so
since libc.a may be compiled with PIC.

	* sysdeps/i386/i586/bzero.S (USE_AS_BZERO): New.
	* sysdeps/i386/i686/bzero.S (USE_AS_BZERO): Likewise.
	* sysdeps/i386/i586/memset.S (BZERO_P): Removed.
	Check USE_AS_BZERO/SHARED instead of BZERO_P/PIC.
	(__memset_zero_constant_len_parameter): New.
	* sysdeps/i386/i686/memset.S (BZERO_P): Removed.
	Check USE_AS_BZERO/SHARED instead of BZERO_P/PIC.
	(__memset_zero_constant_len_parameter): Don't define if
	__memset_chk or USE_AS_BZERO are defined.
2015-08-26 08:01:03 -07:00
H.J. Lu
b6e19c4bdc Replace MEMPCPY_P/PIC with USE_AS_MEMPCPY/SHARED
Replace MEMPCPY_P with USE_AS_MEMPCPY in i586 memcpy.S to support i386
multi-arch memcpy.  Also we should check SHARED not PIC for libc.so
since libc.a may be compiled with PIC.

	* sysdeps/i386/i586/memcpy.S (MEMPCPY_P): Removed.
	Check USE_AS_MEMPCPY/SHARED instead of MEMPCPY_P/PIC.
	* sysdeps/i386/i586/mempcpy.S (USE_AS_MEMPCPY): New.
2015-08-26 07:59:32 -07:00
H.J. Lu
38d22f9f48 Don't disable SSE in x86-64 ld.so
Since x86-64 ld.so preserves vector registers now, we can use SSE in
x86-64 ld.so.  We should run tst-ld-sse-use.sh only on i386.

	* sysdeps/x86/Makefile [$(subdir) == elf] (CFLAGS-.os,
	tests-special, $(objpfx)tst-ld-sse-use.out): Moved to ...
	* sysdeps/i386/Makefile [$(subdir) == elf] (CFLAGS-.os,
	tests-special, $(objpfx)tst-ld-sse-use.out): Here.  Update
	comments.
	* sysdeps/x86_64/Makefile [$(subdir) == elf] (CFLAGS-.os): Add
	-mno-mmx for $(all-rtld-routines).
	* sysdeps/x86/tst-ld-sse-use.sh: Moved to ...
	* sysdeps/i386/tst-ld-sse-use.sh: Here.  Replace x86-64 with
	i386.
2015-08-26 07:55:42 -07:00
Stefan Liebler
b022830beb Adjust _Unwind_Word in unwind.h to version in libgcc.
Building glibc on s390-32 with gcc option -mzarch produces the error due to
sysdeps/s390/jmpbuf-unwind.h:37:10: (void *) (_Unwind_GetCFA  (_context):
cast to pointer from integer of different size [-Werror=int-to-pointer-cast]

Building on s390-32 in esa-mode or s390-64 is fine.

_Unwind_GetCFA returns an _Unwind_Word which is an unsigned
with a size of 4 bytes on s390-32 (esa-mode) and 8 bytes on s390-64.
On s390-32 (zarch-mode), _Unwind_Word has a size of 8 bytes, too.

_Unwind_Word is defined in sysdeps/generic/unwind.h as
typedef unsigned _Unwind_Word __attribute__((__mode__(__word__)));

In libgcc unwind header (<gcc-src>/libgcc/unwind-generic.h) this typedef has
changed to "typedef unsigned _Unwind_Word __attribute__((__mode__(__unwind_word__)));"
in June 2008.

With this mode, _Unwind_Word has a size of 4 bytes on s390-32 (zarch-mode).
The same change applies to _Unwind_Sword.
Thus this patch updates the unwind header according to these changes.

Afterwards, the int-to-pointer-cast-warning is gone away on s390-32 (zarch-mode)
and the testsuite runs with the same test-failures as s390-32 (esa-mode)
plus FAIL: c++-types-check. Here register_t is expected to has a size of 4 bytes,
but it has a size of 8 bytes due to:
posix/sys/types.h:205:typedef int register_t __attribute__ ((__mode__ (__word__)));

The libgcc-patch for gcc 4.4 can be found here:
"[PATCH, spu, unwind] Remove attribute ((mode (word))) from unwind.h"
https://gcc.gnu.org/ml/gcc-patches/2008-06/msg00969.html

ChangeLog:

	* sysdeps/generic/unwind.h
	(_Unwind_Word): Use __mode__(__unwind_word__)
	instead of __mode__(__word__).
	(_Unwind_Sword): Likewise.
2015-08-26 10:26:26 +02:00
Stefan Liebler
808d702288 S390: Fix build error with gcc6 in utf8_utf16-z9.c.
This patch fixes the build error with gcc6:
array subscript is above array bounds [-Werror=array-bounds]

While including loop.c to construct the SINGLE(LOOPFCT) method
for converting from UTF-16 to UTF-8, the bytebuf array with length
MAX_NEEDED_INPUT is used as inptr. MAX_NEEDED_INPUT defaults to
MIN_NEEDED_INPUT if not defined before including loop.c.
Thus bytebuf has a length of 2.
This patch defines MAX_NEEDED_INPUT to MAX_NEEDED_TO, which is 4.

ChangeLog:

	* sysdeps/s390/s390-64/utf8-utf16-z9.c
	(MAX_NEEDED_INPUT): New define.
	(MAX_NEEDED_OUTPUT): New define.
2015-08-26 10:26:26 +02:00
Stefan Liebler
1efad39b22 S390: Optimize string, wcsmbs and memory functions.
This patch set introduces optimized string, wcsmbs and memory functions for
S390/S390x. The functions are accelerated by the usage of the new z13 vector
instructions.

The Principles of Operations manual for IBM z13 is publically available:
http://publibfi.boulder.ibm.com/epubs/pdf/dz9zr010.pdf

The support for these instructions in assembler was introduced by commits:
-"[Committed] S/390: Add support for IBM z13."
 (https://sourceware.org/ml/binutils/2015-01/msg00197.html)
-"[Committed] S/390: Add more IBM z13 instructions"
 (https://sourceware.org/ml/binutils/2015-03/msg00088.html)

The first patches do preparation for the latter optimization patches.
The floating point exception handling - fetestexcept(), ... - is fixed and
the platform and hwcap strings are extended.
The current ifunc routines memset, memcpy and memcmp are refactored and the
ifunc test-framework is now enabled.
A S390 specific configure-check tests if the used binutils supports the new
vector instructions. The optimized functions are provided via ifunc if the
binutils supports the vector instructions. Otherwise a message is dumped to
configure output and only the currently used common code functions are
available.

The optimized functions are implemented in common for s390-32 and s390-64
and the few differences are handled via #ifdef.

The ifunc-resolvers are defined in files sysdeps/s390/multiarch/<func>.c,
which choose either the current implementation __<func>_c() or the vector
implementation __<func>_vx() depending on the HWCAP_S390_VX flag bit in
AT_HWCAP field. If the bit is set, the hardware and the kernel are supporting
vector registers and instructions. If the used binutils lacks vector-support,
then the default implementation in string or wcsmbs directory is included
here instead.
The file sysdeps/s390/multiarch/<func>-c.c includes the current implementation
and defines the function name __<func>_c.
The assembler files sysdeps/s390/multiarch/<func>-vx.S with the vector
instructions are using the directive '.machine "z13"' to allow building glibc
without option '-march=z13'. Additionally the directive '.machinemode
"zarch_nohighgprs"' is needed for the 31bit glibc. This mode does not set the
highgprs flag in ELF header, which would lead to an unloadable libc on a 31bit
kernel.

The most optimized string functions are structured in the same way:
The first 16 bytes of the string is loaded unaligned via vlbb - vector load
to block boundary (e.g. 4k). This instruction loads 16 bytes if possible.
In case of a page cross, it only loads the last bytes of the current page
without a segmentation fault.
Afterwards these first part of string is processed. If e.g. for strlen the end
of string is reached within this first part, the function returns. Otherwise
the pointer is aligned to 16 byte, so i can load a full vector register with vl
without checking for a page cross. Afterwards the first part of string is
processed. If e.g. for strlen the end of string is reached within this first
part, the function returns. Otherwise the pointer is aligned to 16 byte, so
a full vector register can be loaded with vl - vector load - without checking
for a page cross. The remaining string is processed in a four times unrolled
loop, because benchmark results measured improvements compared to a non
unrolled loop.

The optimized wide string functions can only handle 4byte aligned string
pointers. Although a wchar_t pointer should always be 4byte aligned, the most
current common code wide string functions can handle non aligned strings.
Thus the optimized functions will fall back to the common code functions in
case of a non aligned wide string to behave the same as before this patch.

Some string tests can test the string and the wide string version of a function.
The remaining ones are extended and new wide string tests are added.
This is the same in case of the benchtests.

ChangeLog:

	* NEWS: New item for IBM z13 string optimizations.
2015-08-26 10:26:26 +02:00
Stefan Liebler
798f5b4b5d S390: Optimize memrchr.
This patch provides optimized version of memrchr with the z13 vector
instructions.

ChangeLog:

	* sysdeps/s390/multiarch/memrchr-c.c: New File.
	* sysdeps/s390/multiarch/memrchr-vx.S: Likewise.
	* sysdeps/s390/multiarch/memrchr.c: Likewise.
	* sysdeps/s390/multiarch/Makefile
	(sysdep_routines): Add memrchr functions.
	* sysdeps/s390/multiarch/ifunc-impl-list-common.c
	(__libc_ifunc_impl_list_common): Add ifunc test for memrchr.
2015-08-26 10:26:26 +02:00
Stefan Liebler
f21216015b S390: Optimize wmemcmp.
This patch provides optimized version of wmemcmp with the z13 vector
instructions.

ChangeLog:

	* sysdeps/s390/multiarch/wmemcmp-c.c: New File.
	* sysdeps/s390/multiarch/wmemcmp-vx.S: Likewise.
	* sysdeps/s390/multiarch/wmemcmp.c: Likewise.
	* sysdeps/s390/multiarch/Makefile
	(sysdep_routines): Add wmemcmp functions.
	* sysdeps/s390/multiarch/ifunc-impl-list-common.c
	(__libc_ifunc_impl_list_common): Add ifunc test for wmemcmp.
	* benchtests/bench-wmemcmp.c: New File.
	* benchtests/Makefile (wcsmbs-bench): Add wmemcmp.
2015-08-26 10:26:25 +02:00
Stefan Liebler
2e9e166761 S390: Optimize wmemset.
This patch provides optimized version of wmemset with the z13 vector
instructions.

ChangeLog:

	* sysdeps/s390/multiarch/wmemset-c.c: New File.
	* sysdeps/s390/multiarch/wmemset-vx.S: Likewise.
	* sysdeps/s390/multiarch/wmemset.c: Likewise.
	* sysdeps/s390/multiarch/Makefile
	(sysdep_routines): Add wmemset functions.
	* sysdeps/s390/multiarch/ifunc-impl-list-common.c
	(__libc_ifunc_impl_list_common): Add ifunc test for wmemset.
	* wcsmbs/wmemset.c: Use WMEMSET if defined.
	* string/test-memset.c: Add wmemset support.
	* wcsmbs/test-wmemset.c: New File.
	* wcsmbs/Makefile (strop-tests): Add wmemset.
	* benchtests/bench-memset.c: Add wmemset support.
	* benchtests/bench-wmemset.c: New File.
	* benchtests/Makefile (wcsmbs-bench): Add wmemset.
2015-08-26 10:26:25 +02:00
Stefan Liebler
9b593dc305 S390: Optimize memccpy.
This patch provides optimized versions of memccpy with the z13 vector
instructions.

ChangeLog:

	* sysdeps/s390/multiarch/memccpy-c.c: New File.
	* sysdeps/s390/multiarch/memccpy-vx.S: Likewise.
	* sysdeps/s390/multiarch/memccpy.c: Likewise.
	* sysdeps/s390/multiarch/Makefile
	(sysdep_routines): Add memccpy functions.
	* sysdeps/s390/multiarch/ifunc-impl-list-common.c
	(__libc_ifunc_impl_list_common): Add ifunc test for memccpy.
	* string/memccpy.c: Use MEMCCPY if defined.
2015-08-26 10:26:25 +02:00
Stefan Liebler
88eefd344b S390: Optimize memchr, rawmemchr and wmemchr.
This patch provides optimized versions of memchr, rawmemchr and wmemchr with the
z13 vector instructions.

ChangeLog:

	* sysdeps/s390/multiarch/memchr-vx.S: New File.
	* sysdeps/s390/multiarch/memchr.c: Likewise.
	* sysdeps/s390/multiarch/rawmemchr-c.c: Likewise.
	* sysdeps/s390/multiarch/rawmemchr-vx.S: Likewise.
	* sysdeps/s390/multiarch/rawmemchr.c: Likewise.
	* sysdeps/s390/multiarch/wmemchr-c.c: Likewise.
	* sysdeps/s390/multiarch/wmemchr-vx.S: Likewise.
	* sysdeps/s390/multiarch/wmemchr.c: Likewise.
	* sysdeps/s390/s390-32/multiarch/memchr.c: Likewise.
	* sysdeps/s390/s390-64/multiarch/memchr.c: Likewise.
	* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add memchr, wmemchr
	and rawmemchr functions.
	* sysdeps/s390/multiarch/ifunc-impl-list-common.c
	(__libc_ifunc_impl_list_common): Add ifunc test for memchr, rawmemchr
	and wmemchr.
	* wcsmbs/wmemchr.c: Use WMEMCHR if defined.
	* string/test-memchr.c: Add wmemchr support.
	* wcsmbs/test-wmemchr.c: New File.
	* wcsmbs/Makefile (strop-tests): Add wmemchr.
	* benchtests/bench-memchr.c: Add wmemchr support.
	* benchtests/bench-wmemchr.c: New File.
	* benchtests/Makefile (wcsmbs-bench): wmemchr.
2015-08-26 10:26:24 +02:00
Stefan Liebler
b4c21601b1 S390: Optimize strcspn and wcscspn.
This patch provides optimized versions of strcspn and wcscspn with the z13
vector instructions.

ChangeLog:

	* sysdeps/s390/multiarch/strcspn-c.c: New File.
	* sysdeps/s390/multiarch/strcspn-vx.S: Likewise.
	* sysdeps/s390/multiarch/strcspn.c: Likewise.
	* sysdeps/s390/multiarch/wcscspn-c.c: Likewise.
	* sysdeps/s390/multiarch/wcscspn-vx.S: Likewise.
	* sysdeps/s390/multiarch/wcscspn.c: Likewise.
	* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strcspn and
	wcscspn functions.
	* sysdeps/s390/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Add ifunc test for strcspn, wcscspn.
	* wcsmbs/wcscspn.c: Use WCSCSPN if defined.
	* string/test-strcspn.c: Add wcscspn support.
	* wcsmbs/test-wcscspn.c: New File.
	* wcsmbs/Makefile (strop-tests): Add wcscspn.
	* benchtests/bench-strcspn.c: Add wcscspn support.
	* benchtests/bench-wcscspn.c: New File.
	* benchtests/Makefile (wcsmbs-bench): Add wcscspn.
2015-08-26 10:26:24 +02:00
Stefan Liebler
f0ba659847 S390: Optimize strpbrk and wcspbrk.
This patch provides optimized versions of strpbrk and wcspbrk with the z13
vector instructions.

ChangeLog:

	* sysdeps/s390/multiarch/strpbrk-c.c: New File.
	* sysdeps/s390/multiarch/strpbrk-vx.S: Likewise.
	* sysdeps/s390/multiarch/strpbrk.c: Likewise.
	* sysdeps/s390/multiarch/wcspbrk-c.c: Likewise.
	* sysdeps/s390/multiarch/wcspbrk-vx.S: Likewise.
	* sysdeps/s390/multiarch/wcspbrk.c: Likewise.
	* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strpbrk and
	wcspbrk functions.
	* sysdeps/s390/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Add ifunc test for strpbrk, wcspbrk.
	* wcsmbs/wcspbrk.c: Use WCSPBRK if defined.
	* string/test-strpbrk.c: Add wcspbrk support.
	* wcsmbs/test-wcspbrk.c: New File.
	* wcsmbs/Makefile (strop-tests): Add wcspbrk.
	* benchtests/bench-strpbrk.c: Add wcspbrk support.
	* benchtests/bench-wcspbrk.c: New File.
	* benchtests/Makefile (wcsmbs-bench): Add wcspbrk.
2015-08-26 10:26:24 +02:00
Stefan Liebler
f1ffad98be S390: Optimize strspn and wcsspn.
This patch provides optimized versions of strspn and wcsspn with the z13
vector instructions.

ChangeLog:

	* sysdeps/s390/multiarch/strspn-c.c: New File.
	* sysdeps/s390/multiarch/strspn-vx.S: Likewise.
	* sysdeps/s390/multiarch/strspn.c: Likewise.
	* sysdeps/s390/multiarch/wcsspn-c.c: Likewise.
	* sysdeps/s390/multiarch/wcsspn-vx.S: Likewise.
	* sysdeps/s390/multiarch/wcsspn.c: Likewise.
	* wcsmbs/wcsspn.c: Use WCSSPN if defined.
	* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strspn and
	wcsspn functions.
	* sysdeps/s390/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Add ifunc test for strspn, wcsspn.
	* string/test-strspn.c: Add wcsspn support.
	* wcsmbs/test-wcsspn.c: New File.
	* wcsmbs/Makefile (strop-tests): Add wcsspn.
	* benchtests/bench-strspn.c: Add wcsspn support.
	* benchtests/bench-wcsspn.c: New File.
	* benchtests/Makefile (wcsmbs-bench): Add wcsspn.
2015-08-26 10:26:24 +02:00
Stefan Liebler
f40132d4bd S390: Optimize strrchr and wcsrchr.
This patch provides optimized versions of strrchr and wcsrchr with the z13
vector instructions.

ChangeLog:

	* sysdeps/s390/multiarch/strrchr-c.c: New File.
	* sysdeps/s390/multiarch/strrchr-vx.S: Likewise.
	* sysdeps/s390/multiarch/strrchr.c: Likewise.
	* sysdeps/s390/multiarch/wcsrchr-c.c: Likewise.
	* sysdeps/s390/multiarch/wcsrchr-vx.S: Likewise.
	* sysdeps/s390/multiarch/wcsrchr.c: Likewise.
	* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strrchr and
	wcsrchr functions.
	* sysdeps/s390/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Add ifunc test for strrchr, wcsrchr.
	* benchtests/bench-wcsrchr.c: New File.
	* benchtests/Makefile (wcsmbs-bench): Add wcsrchr.
2015-08-26 10:26:23 +02:00
Stefan Liebler
d23d4ef19f S390: Optimize strchrnul and wcschrnul.
This patch provides optimized versions of strchrnul and wcschrnul with the z13
vector instructions.

ChangeLog:

	* sysdeps/s390/multiarch/strchrnul-c.c: New File.
	* sysdeps/s390/multiarch/strchrnul-vx.S: Likewise.
	* sysdeps/s390/multiarch/strchrnul.c: Likewise.
	* sysdeps/s390/multiarch/wcschrnul-c.c: Likewise.
	* sysdeps/s390/multiarch/wcschrnul-vx.S: Likewise.
	* sysdeps/s390/multiarch/wcschrnul.c: Likewise.
	* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strchrnul and
	wcschrnul functions.
	* sysdeps/s390/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Add ifunc test for strchrnul, wcschrnul.
	* wcsmbs/wcschrnul.c: Use WCSCHRNUL if defined.
	* string/test-strchr.c: Add wcschrnul support.
	* wcsmbs/test-wcschrnul.c: New File.
	* wcsmbs/Makefile (strop-tests): Add wcschrnul.
	* benchtests/bench-strchr.c: Add wcschrnul support.
	* benchtests/bench-wcschrnul.c: New File.
	* benchtests/Makefile (wcsmbs-bench): Add wcschrnul.
2015-08-26 10:26:23 +02:00
Stefan Liebler
cf150d45a9 S390: Optimize strchr and wcschr.
This patch provides optimized versions of strchr and wcschr with the z13
vector instructions.

ChangeLog:

	* sysdeps/s390/multiarch/strchr-c.c: New File.
	* sysdeps/s390/multiarch/strchr-vx.S: Likewise.
	* sysdeps/s390/multiarch/strchr.c: Likewise.
	* sysdeps/s390/multiarch/wcschr-c.c: Likewise.
	* sysdeps/s390/multiarch/wcschr-vx.S: Likewise.
	* sysdeps/s390/multiarch/wcschr.c: Likewise.
	* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strchr and
	wcschr functions.
	* sysdeps/s390/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Add ifunc test for strchr, wcschr.
	* string/strchr.c (STRCHR): Define and use macro.
	* benchtests/bench-wcschr.c: New File.
	* benchtests/Makefile (wcsmbs-bench): Add wcschr.
2015-08-26 10:26:23 +02:00
Stefan Liebler
cee82e70cc S390: Optimize strncmp and wcsncmp.
This patch provides optimized versions of strncmp and wcsncmp with the z13
vector instructions.

ChangeLog:

	* sysdeps/s390/multiarch/strncmp-c.c: New File.
	* sysdeps/s390/multiarch/strncmp-vx.S: Likewise.
	* sysdeps/s390/multiarch/strncmp.c: Likewise.
	* sysdeps/s390/multiarch/wcsncmp-c.c: Likewise.
	* sysdeps/s390/multiarch/wcsncmp-vx.S: Likewise.
	* sysdeps/s390/multiarch/wcsncmp.c: Likewise.
	* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strncmp and
	wcsncmp functions.
	* sysdeps/s390/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Add ifunc test for strncmp, wcsncmp.
	* wcsmbs/wcsncmp.c (WCSNCMP): Define and use macro.
	* benchtests/bench-strncmp.c: Add wcsncmp support.
	* benchtests/bench-wcsncmp.c: New File.
	* benchtests/Makefile (wcsmbs-bench): Add wcsncmp.
2015-08-26 10:26:22 +02:00
Stefan Liebler
63724a6db6 S390: Optimize strcmp and wcscmp.
This patch provides optimized versions of strcmp and wcscmp with the z13
vector instructions.

The architecture specific string.h had a typo, which leads to ommiting the
inline version in this file if __USE_STRING_INLINES is defined.
Tested this inline version by tweaking test-strcmp.c.

ChangeLog:

	* sysdeps/s390/multiarch/strcmp-vx.S: New File.
	* sysdeps/s390/multiarch/strcmp.c: Likewise.
	* sysdeps/s390/multiarch/wcscmp-c.c: Likewise.
	* sysdeps/s390/multiarch/wcscmp-vx.S: Likewise.
	* sysdeps/s390/multiarch/wcscmp.c: Likewise.
	* sysdeps/s390/s390-32/multiarch/strcmp.c: Likewise.
	* sysdeps/s390/s390-64/multiarch/strcmp.c: Likewise.
	* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strcmp and
	wcscmp functions.
	* sysdeps/s390/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Add ifunc test for strcmp, wcscmp.
	* string/strcmp.c (STRCMP): Define and use macro.
	* benchtests/bench-wcscmp.c: New File.
	* benchtests/Makefile (wcsmbs-bench): Add wcscmp.
	* sysdeps/s390/bits/string.h: Fix typo: _HAVE_STRING_ARCH_strcmp
	instead of _HAVE_STRING_ARCH_memchr.
2015-08-26 10:26:22 +02:00
Stefan Liebler
e1fe91180e S390: Optimize strncat wcsncat.
This patch provides optimized versions of strncat and wcsncat with the z13
vector instructions.

ChangeLog:

	* sysdeps/s390/multiarch/strncat-c.c: New File.
	* sysdeps/s390/multiarch/strncat-vx.S: Likewise.
	* sysdeps/s390/multiarch/strncat.c: Likewise.
	* sysdeps/s390/multiarch/wcsncat-c.c: Likewise.
	* sysdeps/s390/multiarch/wcsncat-vx.S: Likewise.
	* sysdeps/s390/multiarch/wcsncat.c: Likewise.
	* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strncat and
	wcsncat functions.
	* sysdeps/s390/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Add ifunc test for strncat, wcsncat.
	* wcsmbs/wcsncat.c (WCSNCAT): Define and use macro.
	* string/test-strncat.c: Add wcsncat support.
	* wcsmbs/test-wcsncat.c: New File.
	* wcsmbs/Makefile (strop-tests): Add wcsncat.
	* benchtests/bench-strncat.c: Add wcsncat support.
	* benchtests/bench-wcsncat.c: New File.
	* benchtests/Makefile (wcsmbs-bench): Add wcsncat.
2015-08-26 10:26:22 +02:00
Stefan Liebler
d626a24f23 S390: Optimize strcat and wcscat.
This patch provides optimized versions of strcat and wcscat with the z13
vector instructions.

ChangeLog:

	* sysdeps/s390/multiarch/strcat-c.c: New File.
	* sysdeps/s390/multiarch/strcat-vx.S: Likewise.
	* sysdeps/s390/multiarch/strcat.c: Likewise.
	* sysdeps/s390/multiarch/wcscat-c.c: Likewise.
	* sysdeps/s390/multiarch/wcscat-vx.S: Likewise.
	* sysdeps/s390/multiarch/wcscat.c: Likewise.
	* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strcat and
	wcscat functions.
	* sysdeps/s390/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Add ifunc test for strcat, wcscat.
	* string/strcat.c (STRCAT): Define and use macro.
	* wcsmbs/wcscat.c: Use WCSCAT if defined.
	* string/test-strcat.c: Add wcscat support.
	* wcsmbs/test-wcscat.c: New File.
	* wcsmbs/Makefile (strop-tests): Add wcscat.
	* benchtests/bench-strcat.c: Add wcscat support.
	* benchtests/bench-wcscat.c: New File.
	* benchtests/Makefile (wcsmbs-bench): Add wcscat.
2015-08-26 10:26:21 +02:00
Stefan Liebler
b3a0c176d1 S390: Optimize stpncpy and wcpncpy.
This patch provides optimized versions of stpncpy and wcpncpy with the z13
vector instructions.

ChangeLog:

	* sysdeps/s390/multiarch/stpncpy-c.c: New File.
	* sysdeps/s390/multiarch/stpncpy-vx.S: Likewise.
	* sysdeps/s390/multiarch/stpncpy.c: Likewise.
	* sysdeps/s390/multiarch/wcpncpy-c.c: Likewise.
	* sysdeps/s390/multiarch/wcpncpy-vx.S: Likewise.
	* sysdeps/s390/multiarch/wcpncpy.c: Likewise.
	* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add stpncpy and
	wcpncpy functions.
	* sysdeps/s390/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Add ifunc test for stpncpy, wcpncpy.
	* wcsmbs/wcpncpy.c: Use WCPNCPY if defined.
	* string/test-stpncpy.c: Add wcpncpy support.
	* wcsmbs/test-wcpncpy.c: New File.
	* wcsmbs/Makefile (strop-tests): Add wcpncpy.
	* benchtests/bench-stpncpy.c: Add wcpncpy support.
	* benchtests/bench-wcpncpy.c: New File.
	* benchtests/Makefile (wcsmbs-bench): Add wcpncpy.
2015-08-26 10:26:21 +02:00
Stefan Liebler
d183b96ee6 S390: Optimize strncpy and wcsncpy.
This patch provides optimized versions of strncpy and wcsncpy with the z13
vector instructions.

ChangeLog:

	* sysdeps/s390/multiarch/strncpy-vx.S: New File.
	* sysdeps/s390/multiarch/strncpy.c: Likewise.
	* sysdeps/s390/multiarch/wcsncpy-c.c: Likewise.
	* sysdeps/s390/multiarch/wcsncpy-vx.S: Likewise.
	* sysdeps/s390/multiarch/wcsncpy.c: Likewise.
	* sysdeps/s390/s390-32/multiarch/strncpy.c: Likewise.
	* sysdeps/s390/s390-64/multiarch/strncpy.c: Likewise.
	* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strncpy and
	wcsncpy functions.
	* wcsmbs/wcsncpy.c: Use WCSNCPY if defined.
	* sysdeps/s390/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Add ifunc test for strncpy, wcsncpy.
	* string/test-strncpy.c: Add wcsncpy support.
	* wcsmbs/test-wcsncpy.c: New File.
	* wcsmbs/Makefile (strop-tests): Add wcsncpy.
	* benchtests/bench-strncpy.c: Add wcsncpy support.
	* benchtests/bench-wcsncpy.c: New File.
	* benchtests/Makefile (wcsmbs-bench): Add wcsncpy
2015-08-26 10:26:21 +02:00
Stefan Liebler
8ade3db78d S390: Optimize stpcpy and wcpcpy.
This patch provides optimized versions of stpcpy and wcpcpy with the z13
vector instructions.

ChangeLog:

	* sysdeps/s390/multiarch/stpcpy-c.c: New File.
	* sysdeps/s390/multiarch/stpcpy-vx.S: Likewise.
	* sysdeps/s390/multiarch/stpcpy.c: Likewise.
	* sysdeps/s390/multiarch/wcpcpy-c.c: Likewise.
	* sysdeps/s390/multiarch/wcpcpy-vx.S: Likewise.
	* sysdeps/s390/multiarch/wcpcpy.c: Likewise.
	* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add stpcpy and
	wcpcpy functions.
	* string/stpcpy.c: Use STPCPY if defined.
	* wcsmbs/wcpcpy.c: Use WCPCPY if defined.
	* sysdeps/s390/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Add ifunc test for stpcpy, wcpcpy.
	* string/test-stpcpy.c: Add wcpcpy support.
	* wcsmbs/test-wcpcpy.c: New File.
	* wcsmbs/Makefile (strop-tests): Add wcpcpy.
	* benchtests/bench-stpcpy.c: Add wcpcpy support.
	* benchtests/bench-wcpcpy.c: New File.
	* benchtests/Makefile (wcsmbs-bench): Add wcpcpy.
2015-08-26 10:26:21 +02:00
Stefan Liebler
680df122ab S390: Optimize strcpy and wcscpy.
This patch provides optimized versions of strcpy and wcscpy with the z13
vector instructions.

ChangeLog:

	* sysdeps/s390/multiarch/strcpy-vx.S: New File.
	* sysdeps/s390/multiarch/strcpy.c: Likewise.
	* sysdeps/s390/multiarch/wcscpy-c.c: Likewise.
	* sysdeps/s390/multiarch/wcscpy-vx.S: Likewise.
	* sysdeps/s390/multiarch/wcscpy.c: Likewise.
	* sysdeps/s390/s390-32/multiarch/strcpy.c: Likewise.
	* sysdeps/s390/s390-64/multiarch/strcpy.c: Likewise.
	* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strcpy and
	wcscpy functions.
	* sysdeps/s390/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Add ifunc test for strcpy, wcscpy.
	* benchtests/bench-wcscpy.c: New File.
	* benchtests/Makefile (wcsmbs-bench): Add wcscpy.
2015-08-26 10:26:20 +02:00
Stefan Liebler
fcf40ebe26 S390: Optimize strnlen and wcsnlen.
This patch provides optimized versions of strnlen and wcsnlen with the z13
vector instructions.

ChangeLog:

	* sysdeps/s390/multiarch/strnlen-c.c: New File.
	* sysdeps/s390/multiarch/strnlen-vx.S: Likewise.
	* sysdeps/s390/multiarch/strnlen.c: Likewise.
	* sysdeps/s390/multiarch/wcsnlen-c.c: Likewise.
	* sysdeps/s390/multiarch/wcsnlen-vx.S: Likewise.
	* sysdeps/s390/multiarch/wcsnlen.c: Likewise.
	* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strnlen and
	wcsnlen functions.
	* sysdeps/s390/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Add ifunc test for strnlen, wcsnlen.
	* wcsmbs/wcsnlen.c: Use WCSNLEN if defined.
	* string/test-strnlen.c: Add wcsnlen support.
	* wcsmbs/test-wcsnlen.c: New File.
	* wcsmbs/Makefile (strop-tests): Add wcsnlen.
	* benchtests/bench-strnlen.c: Add wcsnlen support.
	* benchtests/bench-wcsnlen.c: New File.
	* benchtests/Makefile (wcsmbs-bench): Add wcsnlen.
2015-08-26 10:26:20 +02:00
Stefan Liebler
9472f35a0a S390: Optimize strlen and wcslen.
This patch provides optimized versions of strlen and wcslen with the z13 vector
instructions.
The helper macro IFUNC_VX_IMPL is introduced and is used to register all
__<func>_c() and __<func>_vx() functions within __libc_ifunc_impl_list()
to the ifunc test framework.

ChangeLog:

	* sysdeps/s390/multiarch/Makefile: New File.
	* sysdeps/s390/multiarch/strlen-c.c: Likewise.
	* sysdeps/s390/multiarch/strlen-vx.S: Likewise.
	* sysdeps/s390/multiarch/strlen.c: Likewise.
	* sysdeps/s390/multiarch/wcslen-c.c: Likewise.
	* sysdeps/s390/multiarch/wcslen-vx.S: Likewise.
	* sysdeps/s390/multiarch/wcslen.c: Likewise.
	* string/strlen.c (STRLEN): Define and use macro.
	* sysdeps/s390/multiarch/ifunc-impl-list.c
	(IFUNC_VX_IMPL): New macro function.
	(__libc_ifunc_impl_list): Add ifunc test for strlen, wcslen.
	* benchtests/Makefile (wcsmbs-bench): New variable.
	(string-bench-all): Added wcsmbs-bench.
	* benchtests/bench-wcslen.c: New File.
2015-08-26 10:26:20 +02:00
Stefan Liebler
fd484e057d S390: Ifunc resolver macro for vector instructions.
This patch introduces a s390 specific ifunc resolver macro for 32/64bit,
which chooses <func>_vx with vector instructions if HWCAP_S390_VX flag
in hwcaps is set or <func>_c if not.

ChangeLog:

	* sysdeps/s390/multiarch/ifunc-resolve.h (s390_vx_libc_ifunc,
	s390_vx_libc_ifunc2): New macro function.
2015-08-26 10:26:19 +02:00