Commit Graph

3026 Commits

Author SHA1 Message Date
Matthias Kannwischer fcfea0ae2d fix llrint and lrint for 52 <= exponent <= 62 2018-05-29 15:59:48 +02:00
Freddie Chopin 3305f35570 Fix 32-bit overflow in mktime() when time_t is 64-bits long
When converting number of days since epoch (32-bits) to seconds,
calculations using 32-bit `long` overflow for years above 2038. Solve
this by casting number of days to `time_t` just before final
multiplication.

Signed-off-by: Freddie Chopin <freddie.chopin@gmail.com>
2018-05-29 15:27:03 +02:00
Jeff Johnston e928275566 Use _LDBL_EQ_DBL in nexttowardf.c
2018-05-07  Tom de Vries  <tom@codesourcery.com>

	* libm/common/nexttowardf.c: Use _LDBL_EQ_DBL instead of
	_LDBL_EQ_DOUBLE.
2018-05-07 12:22:12 -04:00
Jeff Johnston cd31fbb2ae Add nvptx port.
- From: Cesar Philippidis <cesar@codesourcery.com>
  Date: Tue, 10 Apr 2018 14:43:42 -0700
  Subject: [PATCH] nvptx port

  This port adds support for Nvidia GPU's, which are primarily used as
  offload accelerators in OpenACC and OpenMP.
2018-04-13 15:42:37 -04:00
Corinna Vinschen 27652b608d strtod: Convert 64 bit double to 64 bit int during computation
The gdtoa implementation uses the type long, defined as Long, in lots
of code.  For historical reason newlib defines Long as int32_t instead.

This works fine, as long as floating point exceptions are not enabled.
The conversion to 32 bit int can lead to a FE_INVALID situation.

Example:

  const char *str = "121645100408832000.0";
  char *ptr;

  feenableexcept (FE_INVALID);
  strtod (str, &ptr);

This leads to the following situation in strtod

  double aadj;
  Long L;

  [...]
  L = (Long)aadj;

For instance, on x86_64 the code here is

  cvttsd2si %xmm0,%eax

At this point, aadj is 2529648000.0 in our example.  The conversion to
32 bit %eax results in a negative int value, thus the conversion is
invalid.  With feenableexcept (FE_INVALID), a SIGFPE is raised.

Fix this by always using 64 bit ints here if double is not a 32 bit type
to avoid this type of FP exceptions.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-04-09 11:31:04 +02:00
Corinna Vinschen 1ee6654e50 newlib: fix iswupper_l in !_MB_CAPABLE case
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-03-27 12:35:27 +02:00
Thomas Wolff fc59da00c8 comments to document struct caseconv_entry
explain design of compact (packed) struct caseconv_entry,
in case it needs to be modified for future Unicode versions
2018-03-26 12:01:50 +02:00
Thomas Wolff b49ce5af1b newlib: fix indentation in toulower
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-03-26 10:00:16 +02:00
Hakan Lindqvist 3ce38df8d1 Reduce qsort stack consumption
Classical function call recursion wastes a lot of stack space.
Each recursion level requires a full stack frame comprising all
local variables and additional space as dictated by the
processor calling convention.

This implementation instead stores the variables that are unique
for each recursion level in a parameter stack array, and uses
iteration to emulate recursion. Function call recursion is not
used until the array is full.

To ensure the stack consumption isn't worsened by this design, the
size of the parameter stack array is chosen to be similar to the
stack frame excluding the array. Each function call recursion level
can handle 8 iterative recursion levels.

Stack consumption will worsen when sorting tiny arrays that do not
need recursion (of 6 elements or less). It will be about equal for
up to 15 elements, and be an improvement for larger arrays. The best
case improvement is a stack size reduction down to about one quarter
of the stack consumption before the change.

A design where the parameter stack array is large enough for the
worst case recursion level was rejected because it would worsen
the stack consumption when sorting arrays smaller than about 1500
elements. The worst case is 31 levels on a 32-bit system.

A design with a dynamic parameter array size was rejected because
of limitations in some compilers.
2018-03-16 10:21:23 +01:00
Hakan Lindqvist 0045445ad6 Ensure qsort recursion depth is bounded
The qsort algorithm splits the input array in three parts. The
left and right parts may need further sorting. One of them is
sorted by recursion, the other by iteration. This update ensures
that it is the smaller part that is chosen for recursion.

By choosing the smaller part, each recursion level will handle
less than half the array of the previous recursion level. Hence
the recursion depth is bounded to be less than log2(n) i.e. 1
level per significant bit in the array size n.

The update also includes code comments explaining the algorithm.
2018-03-16 10:21:23 +01:00
Joel Sherrill 948db3e4b7 Correct prototypes of pthread_mutex_getprioceiling() and pthread_setschedparam() 2018-03-15 09:25:45 -05:00
Richard Earnshaw 0bb8697333 [arm] Fix syscalls.c for newlib embedded syscalls builds
Newlib has a build configuration where syscalls can be directly
embedded in the newlib library rather than relying on libgloss.

This configuration was broken recently by an update to the libgloss
support for Arm that was not propagated to the syscalls interface in
newlib itself.  This patch restores the build.  It's essentially a
copy of https://sourceware.org/ml/newlib/2018/msg00128.html but there
are some other minor cleanups and changes that I've made at the same
time.  None of those cleanups affect functionality.

The prototypes of the following functions have been updated: _link,
_sbrk, _getpid, _write, _swiwrite, _lseek, _swilseek, _read and
_swiread.

Signed-off-by: Richard Earnshaw <Richard.Earnshaw@arm.com>
2018-03-15 09:55:11 +00:00
Yaakov Selkowitz 829820af6e ssp: fix wchar.h with -std=c99
https://sourceware.org/ml/newlib/2018/msg00261.html

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-03-14 10:46:32 -05:00
Yaakov Selkowitz e494b56035 Fix alloc_align and alloc_size macros for multiple arguments
https://sourceware.org/ml/newlib/2018/msg00263.html

This is a follow-up to commit 4564b30f33.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-03-14 10:17:51 -05:00
Corinna Vinschen 134f93f313 ctype: align size of category bit fields to small targets needs
E.g. arm ABI requires -fshort-enums for bare-metal toolchains.
Given there are only 29 category enums, the compiler chooses an
8 bit enum type, so a size of 11 bits for the bitfield leads to
a compile time error:

  error: width of 'cat' exceeds its type
    enum category cat: 11;
                  ^~~

Fix this by aligning the size of the category members to byte
borders.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-03-14 11:38:24 +01:00
Corinna Vinschen edcf783dc2 Revert "ctype: align size of category bit fields to small targets needs"
This reverts commit e98d3eb3eb.

It has accidentally included some work in progress.
2018-03-14 11:36:06 +01:00
Thomas Wolff 44d90834fb fix/enhance Unicode table generation scripts
Scripts do not try to acquire Unicode data by best-effort magic anymore.
Options supported:
-h for help
-i to copy Unicode data from /usr/share/unicode/ucd first
-u to download Unicode data from unicode.org first
If (despite of -i or -u if given) the necessary Unicode files are not
available locally, table generation is skipped, but no error code is
returned, so not to obstruct the build process if called from a Makefile.
2018-03-14 10:44:32 +01:00
Corinna Vinschen e98d3eb3eb ctype: align size of category bit fields to small targets needs
E.g. arm ABI requires -fshort-enums for bare-metal toolchains.
Given there are only 29 category enums, the compiler chooses an
8 bit enum type, so a size of 11 bits for the bitfield leads to
a compile time error:

  error: width of 'cat' exceeds its type
    enum category cat: 11;
                  ^~~

Fix this by aligning the size of the category members to byte
borders.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-03-14 10:36:38 +01:00
Corinna Vinschen e186dc8661 towctrans_l: Always return a value from helper functions
touupper and toulower didn't return a value in all cases.  Worse,
this only broke Cygwin when building without optimization for debug
purposes.

Why GCC neglects to notice this is a mystery.

While at it, fix formatting.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-03-13 22:09:30 +01:00
Joel Sherrill 5b97e36239 rtems/.../dirent.h: Add alphasort() prototype 2018-03-13 09:11:47 -05:00
Jon Turney 4564b30f33 Correct alloc_size annotation on reallocarray()
Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
2018-03-13 09:04:56 -05:00
Thomas Wolff c8d96a96ea make target for explicit Unicode data tables generation
Run 'make unidata' in newlib target directory to generate Unicode
data tables for libc functions wcwidth, tow* and isw*.
2018-03-12 12:09:44 +01:00
Thomas Wolff a352730004 character data generation 2018-03-12 11:39:50 +01:00
Thomas Wolff 41f72ab4d7 use generated character data
The tow* functions use an included case conversion table which can be
generated from Unicode data.
The isw* functions use a character categories table (provided by
categories.c) which can be generated from Unicode data.
Delegation between current-locale and specific-locale-dependent functions
was reverted towards the generic locale-dependent functions (*_l.c);
this is however only relevant on systems with non-Unicode wide character
locales, thus not on Cygwin.
2018-03-12 11:39:42 +01:00
Thomas Wolff 3ccfb407af generated character category data, Unicode 10.0
Table categories.t and tag enumeration categories.cat provide
character class data for most of the isw* functions.
These data are generated from Unicode data.
2018-03-12 11:09:31 +01:00
Thomas Wolff 402daa2f80 generated case conversion data, Unicode 10.0
Table caseconv.t provides case conversion data for the tow* functions,
especially towupper and towlower.
These data are generated from Unicode data.
2018-03-12 11:09:31 +01:00
Thomas Wolff 37132125bc width data generation 2018-03-12 10:17:20 +01:00
Thomas Wolff 8e8fd6c849 use generated width data 2018-03-12 10:17:20 +01:00
Thomas Wolff 71291047e2 generated width data, Unicode 10.0
These tables provide character width properties for use by the
wcwidth/wcswidth functions. They are generated from Unicode.
2018-03-12 10:17:20 +01:00
Sebastian Huber f641474cb2 RTEMS: Use int for _CLOCKID_T_
Linux and FreeBSD use int as well.  In addition, this fixes an Ada
incompatiblity problem on 64-bit targets.  See also GCC:

  gcc/ada/libgnarl/s-osinte__rtems.ads

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2018-03-06 11:40:16 +01:00
Sebastian Huber a9c8434527 Make _CLOCKID_T_ system configurable
Let systems optionally provide the _CLOCKID_T_ type via
<machine/_types.h>.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2018-03-06 11:40:16 +01:00
Thomas Wolff f92f048528 Locale modifier @cjkwide to adjust ambiguous-width in non-CJK locales
Locale modifier @cjkwide makes Unicode "ambiguous width" characters
wide.  So ambiguous width characters can be enforced to have width 2
even in non-CJK locales. This gives e.g. users of "Powerline symbols"
the opportunity to adjust their width to the desired behaviour (and the
behaviour apparently expected by some tools) without having to set a CJK
locale and without losing consistence of terminal character width with
wcwidth/wcswidth locale width.
2018-03-05 17:15:12 +01:00
Our Air Quality b7520b14d5 Add global stdio streams support for reent small. 2018-03-01 18:05:31 -05:00
Jaap de Wolff 8329f4867b add forward declaration to __cxa_atexit to aeabi_atexit, to prevent warnings 2018-02-16 12:16:07 +01:00
Jaap de Wolff 337cee51ca Add prototype to _malloc_lock() and *unlock() to malloc.h, and inlude this from nano-mallocr.c 2018-02-16 12:16:07 +01:00
Jaap de Wolff fdc5f52808 Add define _COMPILING_NEWLIB for arm to configure.host, as it is obviously needed
Signed-off-by: Jaap de Wolff <jaap@stretch.de-wolff.org>
2018-02-16 12:16:07 +01:00
Corinna Vinschen 4c73ad6b20 newlib: drop Cygwin license from sys/select.h
This license was accidentally retained when moving the file from Cygwin to newlib.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-02-02 11:27:58 +01:00
Jon Beniston b8272e3b8d Fix vprintf and vfscanf for GCC PR 14577 2018-02-01 13:28:28 +01:00
Sebastian Huber 1658a57715 epiphany: Additional setjmp() and longjmp() syms
At least with Binutils 2.30 and GCC 7.3 we need symbol definitions
without the leading underscore.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2018-01-31 08:17:19 +01:00
Yaakov Selkowitz b920561fe3 ssp: do not use __ssp_protected_ symbol prefixes
This is a NetBSD-specific detail which does not apply to Newlib, causing
linking issues in certain scenarios:

https://cygwin.com/ml/cygwin/2018-01/msg00189.html

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-26 11:51:15 -06:00
Thomas Preudhomme 7d09d0e261 Disable powf/log2?f/exp2?f optimization for single-precision Arm FPU
New optimized powf, logf, log2f, expf and exp2f yield worse performance
on Arm targets with only single precision instructions because the
double precision arithmetic is then implemented via softfloat routines.
This patch uses the old implementation when double precision
instructions are not available on Arm targets.

Testing: Built newlib with GCC's rmprofile Arm multilibs and compared
before/after -> only the above functions are changed and calls to them
(name change from logf to __ieee754_logf and similar). Testing the
changed function on a panel of values yields the same result before the
original patches to improve them and after this one. Double checking the
performance by looping the same panel of values being tested on Arm
Cortex-M4 does show the performance regression is fixed.
2018-01-25 16:08:35 +01:00
Yaakov Selkowitz bd62f539de Guard langinfo.h nl_item from multiple typedefs
This is a prerequisite of adding nl_types.h support to Cygwin.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-19 13:19:21 -06:00
Orlando Arias b7e0f286a2 Fix syntax error in exit.c
This patch fixes a syntax error in exit.c that was introduced during the
ANSI-fication of newlib. The patch fixes a compile-time issue that arises when
newlib is configured with the --enable-lite-exit feature.
2018-01-19 19:58:10 +01:00
Jeff Johnston fffd2770db Bump release to 3.0.0 for yearly snapshot
- major release required due to removal of K&R support
2018-01-18 13:07:45 -05:00
Kito Cheng cba678ba02 RISC-V: Fix alignment issue in sigjmp_buf 2018-01-18 09:21:10 +01:00
Yaakov Selkowitz 4cd1905add ansification: remove ansidecl.h from makedoc
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-17 11:47:33 -06:00
Yaakov Selkowitz 7bfa24c495 ansification: fix makedoc for ANSI C
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-17 11:47:32 -06:00
Yaakov Selkowitz 7192f84096 ansification: remove _HAVE_STDC
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-17 11:47:30 -06:00
Yaakov Selkowitz 70ee6b17df ansification: remove _EXFUN, _EXFUN_NOTHROW
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-17 11:47:29 -06:00
Yaakov Selkowitz 77f16db546 ansification: remove _EXFNPTR, _EXPARM
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-17 11:47:27 -06:00
Yaakov Selkowitz 9087163804 ansification: remove _DEFUN
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-17 11:47:26 -06:00
Yaakov Selkowitz 44276afe2a ansification: remove _VOLATILE, _SIGNED
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-17 11:47:21 -06:00
Yaakov Selkowitz 67ee0cac4c ansification: remove _VOID
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-17 11:47:20 -06:00
Yaakov Selkowitz fff27f8429 ansification: remove _DEFUN_VOID
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-17 11:47:19 -06:00
Yaakov Selkowitz 670b01da7f ansification: remove _CAST_VOID
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-17 11:47:17 -06:00
Yaakov Selkowitz e6321aa6a6 ansification: remove _PTR
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-17 11:47:16 -06:00
Yaakov Selkowitz 0403b9c8c4 ansification: remove _VOID_PTR
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-17 11:47:14 -06:00
Yaakov Selkowitz eea249da3b ansification: remove _PARAMS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-17 11:47:13 -06:00
Yaakov Selkowitz e13e191b60 ansification: remove _NOARGS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-17 11:47:11 -06:00
Yaakov Selkowitz 2310096fbc ansification: remove _DOTS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-17 11:47:10 -06:00
Yaakov Selkowitz 0bda30e1ff ansification: remove _CONST
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-17 11:47:08 -06:00
Yaakov Selkowitz 6783860a2e ansification: remove _AND
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-17 11:47:05 -06:00
Yaakov Selkowitz 82339fcd71 Make __always_inline macro compatible with glibc
For example, this is used when cross-compiling the Linux kernel on Cygwin.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-16 13:24:42 -06:00
Yaakov Selkowitz 2cb24159fb cygwin: add LFS_CFLAGS etc. to confstr/getconf
These are used, for instance, when cross-compiling the Linux kernel.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2018-01-16 12:12:45 -06:00
Ivan Grokhotkov 1d01586b62 newlib: fvprintf: fix get_arg for !_MB_CAPABLE
Code path for _MB_CAPABLE scans for the '%' character and advances
'fmt' pointer past '%'. Code path for !_MB_CAPABLE leaved fmt pointing
to '%', which caused the state machine to go from START to DONE state
immediately.
2018-01-09 09:52:18 +01:00
Alexander Fedotov fcd33916ac fix incompatible pointer type for va_list in nano versions of printf and scanf for target like PowerPC 2018-01-08 11:05:05 +01:00
Jim Wilson a6633677b9 RISC-V: Add nanosleep functionality 2017-12-26 12:24:45 -08:00
Corinna Vinschen 6e5b39940a newlib: ftello{64}: Handle appending stream without fflushing
Neither upstream FreeBSD nor glibc ever call fflush from ftell
and friends.  In border cases it has the tendency to return
wrong or unexpected values, for instance on block devices.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-12-18 20:17:51 +01:00
Corinna Vinschen dc2d175721 newlib: ftello{64}: Fix type of returned value
Especially don't just use -1L since _off_t/_off64_t are not
guaranteed to be of type long.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-12-18 20:15:27 +01:00
Martin Aberg 1251555311 newlib: Availability of _kill() in sys/signal.h
Make prototype of _kill() always visible when _COMPILING_NEWLIB is
defined. This makes <sys/signal.h> consistent with the use of
_COMPILING_NEWLIB in <sys/unistd.h>, <sys/times.h>, etc.
2017-12-18 19:58:05 +01:00
Jim Wilson c874f1145f newlib: Don't do double divide in powf.
* Use 0.0f instead of 0.0 in divide.
2017-12-13 11:33:19 +01:00
Jim Wilson c338bc2255 Don't call double rint from float powf.
Updated patch to use 0.0f in addition to calling rintf.

Tested same way as before, with a testcase that triggers the code and
make check.

OK?

	newlib/
	* libm/math/wf_pow.c (powf): Call rintf instead of rint.  Use 0.0f
	for compare.
2017-12-13 11:03:10 +01:00
Jim Wilson efce18d754 Update MAINTAINERS file email address.
To update my email address to my current employer.  Specifix died quite a while
ago, and I've had two jobs in the interim.

	newlib/
	* MAINTAINERS: Update my email address.
2017-12-12 13:50:30 +01:00
Jon Turney 2ce4e1e5ad makedoc: warn about some obsolete and deprecated commands
To follow up the thread starting at [1], since all uses of TRAD_SYNOPSIS
have been removed, and all uses of ANSI_SYNOPSIS have been renamed to
SYNOPSIS, we can now warn about the use of these.

[1] https://sourceware.org/ml/newlib/2017/msg01182.html

Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
2017-12-08 12:09:03 +00:00
Jon Turney 06bd0ecc8d makedoc: exit with non-zero status on error
Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
2017-12-07 11:54:57 +00:00
Jon Turney c006fd459f makedoc: make errors visible
Discard QUICKREF sections, rather than writing them to stderr
Discard MATHREF sections, rather than discarding as an error
Pass NOTES sections through to texinfo, rather than discarding as an error
Don't redirect makedoc stderr to .ref file
Remove makedoc output on error
Remove .ref files from CLEANFILES
Regenerate Makefile.ins

Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
2017-12-07 11:54:11 +00:00
Corinna Vinschen 67e628fa33 newlib: vfwscanf: fix negation bug in %[ conversion
Old BSD bug:  While ^ is recognized and the set of matching characters
is negated, the code neglects to increment the pointer pointing to the
matching characters.  Thus, on a negation expression like %[^xyz], the
matching doesn't only stop at x, y, or z, but incorrectly also on ^.

Fix this by setting the start pointer after recognizing the ^.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-12-04 17:05:11 +01:00
Yaakov Selkowitz 8f7c712bb8 ssp: add Object Size Checking for wchar.h, part 1
The following functions are also guarded in glibc:
fwprintf, swprintf, wprintf, vfwprintf, vswprintf, vwprintf.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-04 04:09:46 -06:00
Corinna Vinschen b7b6b42cd4 newlib: vfscanf: Implement %l[
Just as %lc and %ls, this is only enabled on ELIX_LEVEL >= 2.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-12-01 17:53:59 +01:00
Corinna Vinschen a49209d2bc newlib: vf[w]scanf: Fix conversion multibyte <-> wchar_t
* vfscanf: per POSIX, if the target type is wchar_t, the width is
  counted in (multibyte) characters, not in bytes.

* vfscanf: Handle UTF-8 multibyte sequences converted to surrogate
  pairs on UTF-16 systems.

* vfwscanf: Don't count high surrogates in input against field width
  counting.  Per POSIX, input is

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-12-01 17:18:26 +01:00
Corinna Vinschen 9638c07527 newlib: vf[w]scanf: Drop width computation mixup
The width value keeps the maximum field width.  This is the maximum
field width of the *input*.  It's *never* to be used in conjunction
with the number of bytes or characters written to the output argument.

However, especially in vfwscanf, the code is partially taken from
NetBSD which erroneously subtracts the number of multibyte chars
written to the argument from the width variable, thus potentially
subtracting up to MB_CUR_MAX from width for a single character in
the input stream.

To make matters worse, the previous patch adding %m added basically
the same mistake for 'c' type input.

Fix it.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-12-01 13:47:26 +01:00
Yaakov Selkowitz 70afa0c7b3 HOWTO: remove reference to TRAD_SYNOPSIS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-01 03:41:54 -06:00
Yaakov Selkowitz 9f369d3c8d mathfp: remove TRAD_SYNOPSIS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-01 03:41:54 -06:00
Yaakov Selkowitz ec4c079f4b math: remove TRAD_SYNOPSIS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-01 03:41:53 -06:00
Yaakov Selkowitz 59822e777f libm/machine: remove TRAD_SYNOPSIS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-01 03:41:53 -06:00
Yaakov Selkowitz ac8b60bdd1 complex: remove TRAD_SYNOPSIS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-01 03:41:53 -06:00
Yaakov Selkowitz 3312f960a7 libm/common: remove TRAD_SYNOPSIS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-01 03:41:53 -06:00
Yaakov Selkowitz 571ff42ae4 unix: remove TRAD_SYNOPSIS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-01 03:41:53 -06:00
Yaakov Selkowitz 5aa2434de0 time: remove TRAD_SYNOPSIS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-01 03:41:53 -06:00
Yaakov Selkowitz adfde9d773 sys: remove TRAD_SYNOPSIS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-01 03:41:52 -06:00
Yaakov Selkowitz 352c8f2f0d string: remove TRAD_SYNOPSIS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-01 03:41:52 -06:00
Yaakov Selkowitz a38fc79ee9 stdlib: remove TRAD_SYNOPSIS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-01 03:41:52 -06:00
Yaakov Selkowitz a60026253d stdio64: remove TRAD_SYNOPSIS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-01 03:41:51 -06:00
Yaakov Selkowitz c7ef9668cf stdio: remove TRAD_SYNOPSIS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-01 03:41:51 -06:00
Yaakov Selkowitz b88cfbc1e5 signal: remove TRAD_SYNOPSIS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-01 03:41:51 -06:00
Yaakov Selkowitz bf3a554bc6 search: remove TRAD_SYNOPSIS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-01 03:41:51 -06:00
Yaakov Selkowitz 35d2d2fe2e reent: remove TRAD_SYNOPSIS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-01 03:41:51 -06:00
Yaakov Selkowitz aa06fa01dc posix: remove TRAD_SYNOPSIS 2017-12-01 03:41:50 -06:00
Yaakov Selkowitz 191b4f35bc misc: remove TRAD_SYNOPSIS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-01 03:41:50 -06:00
Yaakov Selkowitz 1f1e477554 powerpc: remove TRAD_SYNOPSIS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-01 03:41:50 -06:00
Yaakov Selkowitz ddd22ee069 nds32: remove TRAD_SYNOPSIS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-01 03:41:50 -06:00
Yaakov Selkowitz 4e8c64b928 microblaze: remove TRAD_SYNOPSIS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-01 03:41:50 -06:00
Yaakov Selkowitz 59235deeec locale: remove TRAD_SYNOPSIS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-01 03:41:50 -06:00
Yaakov Selkowitz 03973c19e9 iconv: remove TRAD_SYNOPSIS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-01 03:41:50 -06:00
Yaakov Selkowitz 9db7609592 ctype: remove TRAD_SYNOPSIS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-01 03:41:50 -06:00
Yaakov Selkowitz 8ba0bbb913 ssp: add Object Size Checking for unistd.h, part 2
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-01 03:41:49 -06:00
Corinna Vinschen d43863f569 newlib: vf[w]scanf: Implement POSIX %m modifier
* The new code is guarded with _WANT_IO_POSIX_EXTENSIONS, but
  this is automatically enabled with _WANT_IO_C99_FORMATS for now.

* vfscanf neglects to implement %l[, so %ml[ is not implemented yet
  either.

* Sidenote: vfwscanf doesn't allow ranges in %[ yet.  Strictly this
  is allowed per POSIX, but it differes from vfscanf as well as from
  glibc.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-11-30 21:50:23 +01:00
Corinna Vinschen 7161622514 newlib: vfwscanf: fix miscomputation of max field width in %[] case
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-11-30 21:02:38 +01:00
Yaakov Selkowitz b9a662bb4c Feature test macros overhaul: unistd.h, part 3
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-11-30 12:09:05 -06:00
Yaakov Selkowitz 1e43e181c2 ssp: add Object Size Checking for stdlib.h
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-11-30 12:09:03 -06:00
Corinna Vinschen 0fd2c9bd12 newlib: vf[w]scanf: add validity checks
POSIX requires that directive characters appear in a certain sequence:

1. '%' or '%<n>$'
2. optional '*'
3. optional field width digits
4. optional 'm' (not yet implemented)
5. optional length modifier ('l', 'L', 'll', 'h', 'hh', 'j', 't', 'z')
6. conversion specifier ('d', 's', etc)

Add a few basic validity checks to that effect, otherwise reject
directive as match failure.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-11-30 11:55:27 +01:00
Corinna Vinschen 31f11d0572 newlib: vf[w]scanf: Use SIZE_MAX rather than ~0
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-11-30 11:41:36 +01:00
Corinna Vinschen 5e4a1c9c97 newlib: vfscanf: fix formatting
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-11-30 11:41:36 +01:00
Corinna Vinschen 2e328edee4 newlib: vf[w]scanf: Only return from a single point to simplify cleanup
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-11-30 11:41:36 +01:00
Yaakov Selkowitz 8a94bca694 string: add wmempcpy
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-11-30 04:06:49 -06:00
Sebastian Huber dadc9e7e4a RTEMS: Add semaphore <sys/lock.h> functions
Declare semaphore try wait and post binary functions.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-11-30 07:00:45 +01:00
Sebastian Huber 5a2ab9d55e RTEMS: Timed wait by ticks <sys/lock.h> functions
Declare timed wait by ticks functions.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-11-30 07:00:45 +01:00
Sebastian Huber 186166f67a RTEMS: Add set/get name <sys/lock.h> functions
Add inline functions to set/get the name.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-11-30 07:00:45 +01:00
Yaakov Selkowitz 6f84ee8105 ssp: add build infrastructure
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-11-29 11:25:46 -06:00
Yaakov Selkowitz 192de5a349 ssp: add documentation
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-11-29 11:25:45 -06:00
Yaakov Selkowitz 6b02865d80 ssp: add Object Size Checking for unistd.h, part 1
The implementation is from NetBSD, with the addition of feature test macros
for readlink.  glibc also wraps the following functions:
confstr, getdomainname, getgroups, gethostname, getlogin_r, getwd, pread,
readlinkat, ttyname_r.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-11-29 11:25:44 -06:00
Yaakov Selkowitz 576093d46b ssp: add Object Size Checking for stdio.h, part 1
The implementation is mostly from NetBSD, except for switching fgets to
pure inline, and the addition of fgets_unlocked, fread, and fread_unlocked
for parity with glibc.  The following functions are also guarded in glibc:
asprintf, dprintf, fprintf, printf, vasprintf, vdprintf, vfprintf, vprintf.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-11-29 11:25:42 -06:00
Yaakov Selkowitz a997f98b2a ssp: add Object Size Checking for strings.h
The implementation is from NetBSD, with the addition of explicit_bzero
for parity with glibc.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-11-29 11:25:41 -06:00
Yaakov Selkowitz e4fc4d7bc4 ssp: add Object Size Checking for string.h
The implementation is from NetBSD, with the addition of mempcpy (a GNU
extension) for parity with glibc and libssp.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-11-29 11:25:40 -06:00
Yaakov Selkowitz 3e8fc7d9f2 ssp: add Object Size Checking common code
The Object Size Checking (-D_FORTIFY_SOURCE=*) functionality provides
wrappers around functions suspectible to buffer overflows.  While
independent from Stack Smashing Protection (-fstack-protector*), they
are often used and implemented together.

While GCC also provides an implementation in libssp, it is completely
broken (CVE-2016-4973, RHBZ#1324759) and seemingly unfixable, as there
is no reliable way for a preprocessor macro to trigger a link flag.
Therefore, adding this here is necessary to make it work.

Note that this does require building gcc with --disable-libssp and
gcc_cv_libc_provides_ssp=yes.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-11-29 11:25:39 -06:00
Yaakov Selkowitz 0a5dfdbd1b ssp: add APIs for Stack Smashing Protection
Compiling with any of the -fstack-protector* flags requires the
__stack_chk_guard data import (which needs to be initialized) and the
__stack_chk_fail{,_local} functions.  While GCC's own libssp can provide
these, it is better that we provide these ourselves.  The implementation
is custom due to being OS-specific.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-11-29 11:25:37 -06:00
Corinna Vinschen 1bbdb3c953 newlib: [w]scanf: Fix behaviour on matching failure
The special handling of %\0 in [w]scanf is flawed.  It's just a
matching failure and should be handled as such.  scanf also
fakes an int input value on %X with X being an invalid conversion
char.  This is also just a matching failure and should be handled
the same way as %\0.

There's no indication of the reason for this "disgusting
backwards compatibility hacks" in the logs, given this
code made it into newlib before setting up the CVS repo.

Just handle these cases identically as matching failures.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-11-29 15:01:30 +01:00
Yaakov Selkowitz 36a0a675b4 Make __nonnull macro compatible with glibc
This form allows for multiple arguments, e.g. __nonnull((1,2)).

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-11-28 10:26:29 -06:00
Yaakov Selkowitz f2b27ce620 cygwin: define _POSIX_TIMEOUTS
Since commit 8128f5482f, we have all the
non-tracing functions listed in posixoptions(7).  The tracing functions
are gated by their own option, and are obsolecent anyway.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-11-28 10:26:00 -06:00
Jeff Johnston 569d048c89 Add the Aarch64 SVE specific HWCAP_SVE define
Checking in change from Alan Hayward <Alan.Hayward@arm.com>

Signed-off-by: Jeff Johnston <jjohnstn@redhat.com>
2017-11-22 14:10:37 -05:00
Sebastian Huber 6480987f3a RTEMS: Add missing __getreent() to crt0
Default implementation was removed for RTEMS by
b1a388799d.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-11-20 10:12:18 +01:00
Sebastian Huber 0e3e375377 RTEMS: Add missing functions to crt0
This helps to get some more features from libstdc++.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-11-20 08:53:30 +01:00
Corinna Vinschen baaceb8f37 Cygwin: fcntl.h: Use test macros to guard non-standard open flags
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-11-14 21:45:31 +01:00
Corinna Vinschen f9d071aaf8 Cygwin: fcntl.h: Define O_NOATIME
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-11-14 21:45:31 +01:00
Corinna Vinschen 0aa99373c1 Cygwin: fcntl.h: Define O_TMPFILE and implement it
Difference to Linux: We can't create files which don't show up
in the filesystem due to OS restrictions.  As a kludge, make a
(half-hearted) attempt to hide the file in the filesystem.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-11-14 21:45:25 +01:00
Florian Schmidt 9cf0c4a012 newlib/libc/stdlib/realloc.c: fix variable name
The variable doesn't follow the convention of having the same name as
the function it's bundled with. Furthermore, it clashes with the
variable of the same name in newlib/libc/stdlib/calloc.c.

Signed-off-by: Florian Schmidt <florian.schmidt@neclab.eu>
2017-11-14 10:18:30 +01:00
Joel Sherrill b1a388799d newlib/.../getreent.c: Allow to be provided by host and do so for RTEMS
RTEMS provides the option to have a global or per-thread reentrancy
as part of application configuration. As part of this, RTEMS provides
the implementation of __getreent() as appropriate. Allow the target
to determine if this method is present in libc.a.
2017-11-13 10:19:23 +01:00
Sebastian Huber 1f42dc2bcf Make ffsl() and ffsll() BSD-visible
Since glibc 2.27, they are visible via _DEFAULT_SOURCE (__USE_MISC):

https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/commit/man3/ffs.3?id=247bbcf00c9a425ab0ad6e303ec8718e4ba844a6

In FreeBSD, they are guarded by __BSD_VISIBLE.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-11-03 10:46:07 +01:00
Joel Sherrill 076ce7098f newlib/configure.host: Remove obsolete definition of _I386MACH_ALLOW_HW_INTERRUPTS
The *-*-rtems* targets defined this even though the conditional
was no longer present in i386/setjmp.S.
2017-11-02 09:27:15 +01:00
Sebastian Huber ce189d8afe RTEMS: Remove internal timecounter API
Change copyright.  Original BSD content moved to
<machine/_kernel_time.h>.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-10-26 08:47:21 +02:00
Szabolcs Nagy 56e494c074 fix internal __ieee754_expf and __ieee754_logf calls
The recently added new math code inlines error handling instead of using
error handling wrappers around __ieee754* internal symbols, and thus the
__ieee754* symbols are no longer provided.

However __ieee754_expf and __ieee754_logf are used in the implementation
of a number of other math functions.  These symbols are safe to redirect
to the external expf and logf symbols, because those names are always
reserved when single precision math functions are reserved and the
additional error handling code is either not reached or there will be
an error in the final result that will override an internal spurious
errno setting.

For consistency all of __ieee754_expf, __ieee754_logf and __ieee754_powf
are redirected using a macro.
2017-10-20 11:19:02 +02:00
Szabolcs Nagy c156098271 New expf, exp2f, logf, log2f and powf implementations
Based on code from https://github.com/ARM-software/optimized-routines/

This patch adds a highly optimized generic implementation of expf,
exp2f, logf, log2f and powf.  The new functions are not only
faster (6x for powf!), but are also smaller and more accurate.
In order to achieve this, the algorithm uses double precision
arithmetic for accuracy, avoids divisions and uses small table
lookups to minimize the polynomials.  Special cases are handled
inline to avoid the unnecessary overhead of wrapper functions and
set errno to POSIX requirements.

The new functions are added under newlib/libm/common, but the old
implementations are kept (in newlib/libm/math) for non-IEEE or
pre-C99 systems.  Targets can enable the new math code by defining
__OBSOLETE_MATH_DEFAULT to 0 in newlib/libc/include/machine/ieeefp.h,
users can override the default by defining __OBSOLETE_MATH.
Currently the new code is enabled for AArch64 and AArch32 with VFP.
Targets with a single precision FPU may still prefer the old
implementation.

libm.a size changes:
arm: -1692
arm/thumb/v7-a/nofp: -878
arm/thumb/v7-a+fp/hard: -864
arm/thumb/v7-a+fp/softfp: -908
aarch64: -1476
2017-10-13 10:58:00 +02:00
Sebastian Huber c165a27c01 RTEMS: Fix _PTHREAD_MUTEX_INITIALIZER
Add missing braces around initializer.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-10-13 08:07:13 +02:00
Michael Haubenwallner 15de9da0b9 Fix typo with newlib-long-time_t default value.
Fix typo for newlib-long-time_t to leave newlib-nano-malloc alone.
2017-10-09 17:55:19 +02:00
Sebastian Huber 3a79700c2d RTEMS: Make pthread_mutex_t self-contained
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-10-05 14:56:13 +02:00
Sebastian Huber 55c5dda9b5 RTEMS: Make pthread_cond_t self-contained
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-10-05 14:56:13 +02:00
Sebastian Huber d902eef093 RTEMS: Make pthread_rwlock_t self-contained
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-10-05 14:56:13 +02:00
Sebastian Huber 9187bb23a0 RTEMS: Make pthread_barrier_t self-contained
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-10-05 14:56:13 +02:00
Sebastian Huber 8253c240cb RTEMS: Make sem_t self-contained
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-10-05 14:56:12 +02:00
Sebastian Huber 4fef7312b3 RTEMS: Optimize pthread_once_t
Reduce size of pthread_once_t and make it zero-initialized.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-10-05 14:56:12 +02:00
Brian Inglis f9b24fad7c newlib/libm/complex/cargl.c change imag() real() to cimagl() creall() 2017-09-19 15:36:12 -05:00
Sebastian Huber 1592a0be0c Fix warnings and documentation in strnstr.c
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-09-19 15:35:09 -05:00
Sebastian Huber 4de8754bac Change time_t to 64-bit by default
In order to avoid the year 2038 problem, define time_t to a signed
integer with at least 64-bits.  The type for time_t can be forced to
long with the --enable-newlib-long-time_t configure option or with the
_USE_LONG_TIME_T system configuration define.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-09-07 15:39:34 +02:00
Sebastian Huber ad45b86533 Remove harmful casts in gmtime_r()
In case time_t is long, then the cast to long is a nop.  In case time_t
is __int_least64_t, then the cast to long may truncate the value before
the division.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-09-07 15:39:34 +02:00
Sebastian Huber f9205f1d47 Let RTEMS provide clock()
Newlib uses _times_r() in clock().  The problem is that the _times_r()
clock frequency is defined by sysconf(_SC_CLK_TCK).  The clock frequency
of clock() is the constant CLOCKS_PER_SEC.

FreeBSD uses getrusage() for clock().  Since RTEMS has only one process,
the implementation can be simplified.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-09-07 07:41:07 +02:00
Corinna Vinschen e18b7ffa48 stdio.h: Don't define unlocked macros using static inline on C++
In C++, the usage of static inline functions for getchar_unlocked and
putchar_unlocked may result in error messages like

  error: ‘_putchar_unlocked’ was not declared in this scope

Fix this by not using the _getchar_unlocked and _putchar_unlocked
macros in C++.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-09-04 10:52:33 +02:00
Yaakov Selkowitz 51d1fb715d include: fix ffs, fls guards
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-08-30 12:29:47 -05:00
Corinna Vinschen 192986ab03 newlib: string/Makefile.am (CHEWOUT_FILES): Add strnstr.def
Regenerate strings/Makefile.in

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-08-30 16:48:55 +02:00
Corinna Vinschen 5fc315b597 newlib: strnstr: drop traditional synopisis
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-08-30 16:45:36 +02:00
Sichen Zhao 42885ea4b8 Add man page entry for strnstr.c. 2017-08-30 15:10:07 +02:00
Sichen Zhao f22054c94d Modify strnstr.c. 2017-08-30 15:08:58 +02:00
Sebastian Huber f1863582ed Fix compile error due to new strnstr()
Remove local strnstr() implementation to fix compile error:

newlib/libc/iconv/lib/aliasesi.c:53:8: error: conflicting types for 'strnstr'
 _DEFUN(strnstr, (haystack, needle, length),
        ^
In file included from newlib/libc/iconv/lib/aliasesi.c:29:0:
newlib/libc/include/string.h:125:10:
note: previous declaration of 'strnstr' was here
 char    *strnstr(const char *, const char *, size_t) __pure;
          ^~~~~~~

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-08-28 17:31:52 +02:00
Corinna Vinschen c070326d31 newlib: rebuild string/Makefile.in
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-08-25 18:00:46 +02:00
Sichen Zhao c206d04422 Port strnstr.c to newlib. 2017-08-25 18:00:46 +02:00
Sichen Zhao 3437665ac8 Import strnstr.c from FreeBSD. 2017-08-25 18:00:46 +02:00
Eric Blake a4961ccd3f Revert "headers: avoid bareword attributes" for clang
This reverts most of commit 979d467ff6.

We cannot avoid some bareword attributes until clang is fixed to
properly support __-decorated attributes; see this bug:
https://bugs.llvm.org/show_bug.cgi?id=34319

The macros in question expand to the empty string under gcc, so
only compilation under clang is affected, and since clang has the
bug, the obvious solution is to roll back the changes, and document
the issue.

Signed-off-by: Eric Blake <eblake@redhat.com>
2017-08-25 09:23:10 -05:00
Sebastian Huber 524eb4dc29 RTEMS: Use __uint64_t for _CLOCK_T_
This addresses:

https://devel.rtems.org/ticket/2135

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-08-25 14:25:42 +02:00
Sebastian Huber 7b2c362190 Make _CLOCK_T_ system configurable
Let systems optionally provide the _CLOCK_T_ type via
<machine/_types.h>.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-08-25 14:25:42 +02:00
Brian Inglis 406bd10fb4 newlib/libc/time/strptime.c(strptime_l) add %F %s support for strptime 2017-08-25 14:04:22 +02:00
Kito Cheng bd86e9de75 Add myself to RISC-V Port Maintainer 2017-08-21 11:09:15 +02:00
Kito Cheng 6864c08b94 Change license to FreeBSD License for RISC-V
- For prevent confuse about what BSD license variant we used, 2- or
   3-clause license, we change the license to FreeBSD license to make
   it unambiguously refers to the 2-clause license.
2017-08-21 11:08:54 +02:00
Ken Brown f665b1cef3 cygwin: Implement renameat2
Define the RENAME_NOREPLACE flag in <cygwin/fs.h> as defined on Linux
in <linux/fs.h>.  The other RENAME_* flags defined on Linux are not
supported.
2017-08-19 18:06:49 +02:00
Kito Cheng 7040b2de08 Add RISC-V port for libm
Contributor list:
    - Michael Neilly  <mneilly@yahoo.com>
    - Kito Cheng  <kito.cheng@gmail.com>
2017-08-17 12:54:56 -04:00
Eric Blake 979d467ff6 headers: avoid bareword attributes
Always use the __-decorated form of an attribute name in public
headers, as the bareword form is in the user's namespace, and we
don't want compilation to break just because the user defines the
bareword to mean something else.

Signed-off-by: Eric Blake <eblake@redhat.com>
2017-08-17 07:10:03 -05:00
Kito Cheng 363dbb9e44 Add RISC-V port for newlib
Contributor list:
    - Andrew Waterman  <andrew@sifive.com>
    - Palmer Dabbelt  <palmer@dabbelt.com>
    - Kito Cheng  <kito.cheng@gmail.com>
    - Scott Beamer  <sbeamer@eecs.berkeley.edu>
2017-08-16 18:00:58 -04:00
Corinna Vinschen 9d602b98f8 newlib: regenerate libc/stdlib/Makefile.am
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-08-11 10:17:16 +02:00
Ken Brown d7821c045e Define sigsetjmp/siglongjmp only if __POSIX_VISIBLE 2017-08-07 16:07:46 +02:00
Sebastian Huber b0f271d1db Proper locking for getchar() and putchar()
Add internal inline functions _getchar_unlocked() and
_putchar_unlocked() if __CUSTOM_FILE_IO__ is not defined.  These
functions get _REENT only once.  Use them for getchar_unlocked() and
putchar_unlocked().  Define getchar() and putchar() to these unlocked
internal functions if __SINGLE_THREAD__ is defined, otherwise use the
external functions to use proper locking of the FILE object.

Assumes that __SINGLE_THREAD__ is not defined if __CYGWIN__ is defined.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-08-07 07:54:58 +02:00
Aditya Upadhyay a1c2491f70 Importing wcstoumax inttypes method from FreeBSD. 2017-08-02 13:02:26 +02:00
Aditya Upadhyay 88abc0958b Importing wcstoimax inttypes method from FreeBSD. 2017-08-02 13:02:26 +02:00
Aditya Upadhyay fd1981a7df Importing strtoumax inttypes method from FreeBSD. 2017-08-02 13:02:26 +02:00
Aditya Upadhyay 910cc30c10 Importing strtoimax inttypes method from FreeBSD. 2017-08-02 13:02:26 +02:00
Yaakov Selkowitz 4aaec3cb88 Add elf.h to newlib
This is copied from musl (MIT license).  This is newer and more thorough
than that of FreeBSD currently shipped only on Cygwin.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-08-02 01:18:55 -05:00
Aditya Upadhyay 0e0900cb40 Importing catanl long double complex method from NetBSD. 2017-07-28 20:36:09 +02:00
Aditya Upadhyay 124ccc500e Fixing HUGE_VALF to HUGE_VALL. 2017-07-28 20:30:30 +02:00
Sebastian Huber 7dad0e441a stdio: Fix make rule override
The Makefile.am contained two rules for the vfwscanf object.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-07-28 15:05:54 +02:00
Corinna Vinschen a7a7980f7b newlib: regenerate stdlib/Makefile.in
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-07-28 12:44:45 +02:00
Aditya Upadhyay 4b2fc8c55e Importing imaxdiv inttypes method from FreeBSD. 2017-07-28 12:23:10 +02:00
Aditya Upadhyay a785f0f69a Importing imaxabs inttypes method from FreeBSD. 2017-07-28 12:23:08 +02:00
Corinna Vinschen 8322a87c16 cygwin: Set __STDC_ISO_10646__ to Unicode 5.2 value
Now that XP is not supported anymore we can freely do that.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-07-26 11:49:58 +02:00
Richard Earnshaw d6cac3e1da [arm] Fix strcpy for unified syntax on ARMv4t thumb.
ARMv4t does not support mov between two low registers.  Now we use
unified syntax mov instructions need converting to movs.
2017-07-21 11:23:27 +01:00
Jozef Lawrynowicz 25138cc2a6 MSP430: Define __BUFSIZ__ as 256 to prevent default of 1024 being used 2017-07-20 16:18:54 +02:00
Ian Tessier via newlib 4bce7ecbe1 arm: Update strcpy.c to use UAL syntax.
With this change the arm platform can now be fully compiled with Clang.

Tested by comparing the output with GCC 4.8.2, and Clang 4.0, using a
variety of arches, big/little endianness, and arm/thumb mode to verify
the generated assembly output matches between GCC vs Clang with UAL, and
also GCC with UAL vs GCC with non-UAL, for all preprocessor code blocks.

The only difference found is an extra nop at the end of the function
when compiled with GCC using armv7-a/thumb/little-endian/-O2 compared to
Clang. The nop is not emitted when compiled in big-endian mode.
2017-07-20 16:18:29 +02:00
Sebastian Huber a3617d7bde Synchronize RTEMS <sys/bitset.h> with FreeBSD
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-07-12 08:04:45 +02:00
Sebastian Huber 870dc91de6 Add myself to OS Port Maintainers (RTEMS) 2017-07-10 09:48:50 +02:00
Sebastian Huber 1d49ce4d6b Synchronize RTEMS <sys/bitset.h> with FreeBSD
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-07-10 07:18:10 +02:00
David Macek bf61b38d98 Rename __in and __out in headers to avoid collision with Windows APIs
* string.h: Local variables in expansion of strdupa and strndupa
* sys/wait.h: Fields in anonymous union in expansion of __wait_status_to_int
2017-07-07 16:37:44 +02:00
Aditya Upadhyay be3ca39474 Fixed warnings for some long double complex methods 2017-07-05 14:40:02 +02:00
Sebastian Huber 461152e4eb Add ffsl(), ffsll(), fls(), flsl(), flsll()
Use compiler builtin for ffs().  Remove duplicate implementation from
Cygwin.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-07-05 13:49:48 +02:00
Sebastian Huber 2390e71a42 Synchronize <strings.h> with latest FreeBSD
Include <strings.h> in <string.h> if __BSD_VISIBLE like on FreeBSD.
Remove redundant declarations from <string.h>.  Make ffsl(), ffsll(),
strncasecmp(), strcasecmp_l(), and strncasecmp_l() visible via
__BSD_VISIBLE instead of __GNU_VISIBLE.  Add fls(), flsl(), and flsll()
to <strings.h> if __BSD_VISIBLE.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-07-05 13:49:48 +02:00
Sebastian Huber d736941a51 Implement bzero() via memset()
Use memset() to implement bzero() to profit from machine-specific
memset() optimizations.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-07-05 13:49:48 +02:00
Yaakov Selkowitz e4ee6c9aaf Feature test macros overhaul: unistd.h, part 2
This fixes commit f70aad3de4 as well as some
other functions which were never properly guarded.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-06-30 10:48:23 -05:00
Sebastian Huber a254c82486 Add --enable-newlib-global-stdio-streams
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-06-30 07:45:16 +02:00
Sebastian Huber d2e256a36a Enable _REENT_GLOBAL_STDIO_STREAMS for RTEMS
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-06-30 07:45:16 +02:00
Sebastian Huber 668a4c8722 Introduce _REENT_GLOBAL_STDIO_STREAMS
In Newlib, the stdio streams are defined to thread-specific pointers
_reent::_stdin, _reent::_stdout and _reent::_stderr.  In case
_REENT_SMALL is not defined, then these pointers are initialized via
_REENT_INIT_PTR() or _REENT_INIT_PTR_ZEROED() to thread-specific FILE
objects provided via _reent::__sf[3].  There are two problems with this
(at least in case of RTEMS).

(1) The thread-specific FILE objects are closed by _reclaim_reent().
This leads to problems with language run-time libraries that provide
wrappers to the C/POSIX stdio streams (e.g.  C++ and Ada), since they
use the thread-specific FILE objects of the initialization thread.  In
case the initialization thread is deleted, then they use freed memory.

(2) Since thread-specific FILE objects are used with a common output
device via file descriptors 0, 1 and 2, the locking at FILE object level
cannot ensure atomicity of the output, e.g. a call to printf().

Introduce a new Newlib configuration option _REENT_GLOBAL_STDIO_STREAMS
to enable the use of global stdio FILE objects.

As a side-effect this reduces the size of struct _reent by more than
50%.

The _REENT_GLOBAL_STDIO_STREAMS should not be used without
_STDIO_CLOSE_PER_REENT_STD_STREAMS.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-06-30 07:45:16 +02:00
Sebastian Huber 79cc9cb8f3 Add stdin_init(), stdout_init() and stderr_init()
This simplifies further changes in this area.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-06-30 07:45:15 +02:00
Sebastian Huber b70c0bc706 Remove superfluous parameter from std()
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-06-30 07:45:15 +02:00
Wilco Dijkstra c86063bdc0 Optimized memcmp
This is an optimized memcmp for AArch64.  This is a complete rewrite
using a different algorithm.  The previous version split into cases
where both inputs were aligned, the inputs were mutually aligned and
unaligned using a byte loop.  The new version combines all these cases,
while small inputs of less than 8 bytes are handled separately.

This allows the main code to be sped up using unaligned loads since
there are now at least 8 bytes to be compared.  After the first 8 bytes,
align the first input.  This ensures each iteration does at most one
unaligned access and mutually aligned inputs behave as aligned.
After the main loop, process the last 8 bytes using unaligned accesses.

This improves performance of (mutually) aligned cases by 25% and
unaligned by >500% (yes >6 times faster) on large inputs.

ChangeLog:
2017-06-28  Wilco Dijkstra  <wdijkstr@arm.com>

        * newlib/libc/machine/aarch64/memcmp.S (memcmp):
        Rewrite of optimized memcmp.

GLIBC benchtests/bench-memcmp.c performance comparison for Cortex-A53:

Length    1, alignment  1/ 1:		153%
Length    1, alignment  1/ 1:		119%
Length    1, alignment  1/ 1:		154%
Length    2, alignment  2/ 2:		121%
Length    2, alignment  2/ 2:		140%
Length    2, alignment  2/ 2:		121%
Length    3, alignment  3/ 3:		105%
Length    3, alignment  3/ 3:		105%
Length    3, alignment  3/ 3:		105%
Length    4, alignment  4/ 4:		155%
Length    4, alignment  4/ 4:		154%
Length    4, alignment  4/ 4:		161%
Length    5, alignment  5/ 5:		173%
Length    5, alignment  5/ 5:		173%
Length    5, alignment  5/ 5:		173%
Length    6, alignment  6/ 6:		145%
Length    6, alignment  6/ 6:		145%
Length    6, alignment  6/ 6:		145%
Length    7, alignment  7/ 7:		125%
Length    7, alignment  7/ 7:		125%
Length    7, alignment  7/ 7:		125%
Length    8, alignment  8/ 8:		111%
Length    8, alignment  8/ 8:		130%
Length    8, alignment  8/ 8:		124%
Length    9, alignment  9/ 9:		160%
Length    9, alignment  9/ 9:		160%
Length    9, alignment  9/ 9:		150%
Length   10, alignment 10/10:		170%
Length   10, alignment 10/10:		137%
Length   10, alignment 10/10:		150%
Length   11, alignment 11/11:		160%
Length   11, alignment 11/11:		160%
Length   11, alignment 11/11:		160%
Length   12, alignment 12/12:		146%
Length   12, alignment 12/12:		168%
Length   12, alignment 12/12:		156%
Length   13, alignment 13/13:		167%
Length   13, alignment 13/13:		167%
Length   13, alignment 13/13:		173%
Length   14, alignment 14/14:		167%
Length   14, alignment 14/14:		168%
Length   14, alignment 14/14:		168%
Length   15, alignment 15/15:		168%
Length   15, alignment 15/15:		173%
Length   15, alignment 15/15:		173%
Length    1, alignment  0/ 0:		134%
Length    1, alignment  0/ 0:		127%
Length    1, alignment  0/ 0:		119%
Length    2, alignment  0/ 0:		94%
Length    2, alignment  0/ 0:		94%
Length    2, alignment  0/ 0:		106%
Length    3, alignment  0/ 0:		82%
Length    3, alignment  0/ 0:		87%
Length    3, alignment  0/ 0:		82%
Length    4, alignment  0/ 0:		115%
Length    4, alignment  0/ 0:		115%
Length    4, alignment  0/ 0:		122%
Length    5, alignment  0/ 0:		127%
Length    5, alignment  0/ 0:		119%
Length    5, alignment  0/ 0:		127%
Length    6, alignment  0/ 0:		103%
Length    6, alignment  0/ 0:		100%
Length    6, alignment  0/ 0:		100%
Length    7, alignment  0/ 0:		82%
Length    7, alignment  0/ 0:		91%
Length    7, alignment  0/ 0:		87%
Length    8, alignment  0/ 0:		111%
Length    8, alignment  0/ 0:		124%
Length    8, alignment  0/ 0:		124%
Length    9, alignment  0/ 0:		136%
Length    9, alignment  0/ 0:		136%
Length    9, alignment  0/ 0:		136%
Length   10, alignment  0/ 0:		136%
Length   10, alignment  0/ 0:		135%
Length   10, alignment  0/ 0:		136%
Length   11, alignment  0/ 0:		136%
Length   11, alignment  0/ 0:		136%
Length   11, alignment  0/ 0:		135%
Length   12, alignment  0/ 0:		136%
Length   12, alignment  0/ 0:		136%
Length   12, alignment  0/ 0:		136%
Length   13, alignment  0/ 0:		135%
Length   13, alignment  0/ 0:		136%
Length   13, alignment  0/ 0:		136%
Length   14, alignment  0/ 0:		136%
Length   14, alignment  0/ 0:		136%
Length   14, alignment  0/ 0:		136%
Length   15, alignment  0/ 0:		136%
Length   15, alignment  0/ 0:		136%
Length   15, alignment  0/ 0:		136%
Length    4, alignment  0/ 0:		115%
Length    4, alignment  0/ 0:		115%
Length    4, alignment  0/ 0:		115%
Length   32, alignment  0/ 0:		127%
Length   32, alignment  7/ 2:		395%
Length   32, alignment  0/ 0:		127%
Length   32, alignment  0/ 0:		127%
Length    8, alignment  0/ 0:		111%
Length    8, alignment  0/ 0:		124%
Length    8, alignment  0/ 0:		124%
Length   64, alignment  0/ 0:		128%
Length   64, alignment  6/ 4:		475%
Length   64, alignment  0/ 0:		131%
Length   64, alignment  0/ 0:		134%
Length   16, alignment  0/ 0:		128%
Length   16, alignment  0/ 0:		119%
Length   16, alignment  0/ 0:		128%
Length  128, alignment  0/ 0:		129%
Length  128, alignment  5/ 6:		475%
Length  128, alignment  0/ 0:		130%
Length  128, alignment  0/ 0:		129%
Length   32, alignment  0/ 0:		126%
Length   32, alignment  0/ 0:		126%
Length   32, alignment  0/ 0:		126%
Length  256, alignment  0/ 0:		127%
Length  256, alignment  4/ 8:		545%
Length  256, alignment  0/ 0:		126%
Length  256, alignment  0/ 0:		128%
Length   64, alignment  0/ 0:		171%
Length   64, alignment  0/ 0:		171%
Length   64, alignment  0/ 0:		174%
Length  512, alignment  0/ 0:		126%
Length  512, alignment  3/10:		585%
Length  512, alignment  0/ 0:		126%
Length  512, alignment  0/ 0:		127%
Length  128, alignment  0/ 0:		129%
Length  128, alignment  0/ 0:		128%
Length  128, alignment  0/ 0:		129%
Length 1024, alignment  0/ 0:		125%
Length 1024, alignment  2/12:		611%
Length 1024, alignment  0/ 0:		126%
Length 1024, alignment  0/ 0:		126%
Length  256, alignment  0/ 0:		128%
Length  256, alignment  0/ 0:		127%
Length  256, alignment  0/ 0:		128%
Length 2048, alignment  0/ 0:		125%
Length 2048, alignment  1/14:		625%
Length 2048, alignment  0/ 0:		125%
Length 2048, alignment  0/ 0:		125%
Length  512, alignment  0/ 0:		126%
Length  512, alignment  0/ 0:		127%
Length  512, alignment  0/ 0:		127%
Length 4096, alignment  0/ 0:		125%
Length 4096, alignment  0/16:		125%
Length 4096, alignment  0/ 0:		125%
Length 4096, alignment  0/ 0:		125%
Length 1024, alignment  0/ 0:		126%
Length 1024, alignment  0/ 0:		126%
Length 1024, alignment  0/ 0:		126%
Length 8192, alignment  0/ 0:		125%
Length 8192, alignment 63/18:		636%
Length 8192, alignment  0/ 0:		125%
Length 8192, alignment  0/ 0:		125%
Length   16, alignment  1/ 2:		317%
Length   16, alignment  1/ 2:		317%
Length   16, alignment  1/ 2:		317%
Length   32, alignment  2/ 4:		395%
Length   32, alignment  2/ 4:		395%
Length   32, alignment  2/ 4:		398%
Length   64, alignment  3/ 6:		475%
Length   64, alignment  3/ 6:		475%
Length   64, alignment  3/ 6:		477%
Length  128, alignment  4/ 8:		479%
Length  128, alignment  4/ 8:		479%
Length  128, alignment  4/ 8:		479%
Length  256, alignment  5/10:		543%
Length  256, alignment  5/10:		539%
Length  256, alignment  5/10:		543%
Length  512, alignment  6/12:		585%
Length  512, alignment  6/12:		585%
Length  512, alignment  6/12:		585%
Length 1024, alignment  7/14:		611%
Length 1024, alignment  7/14:		611%
Length 1024, alignment  7/14:		611%
2017-06-29 20:36:35 +02:00
Corinna Vinschen 181d8393ae newlib: fix file mode of newly added complex sources
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-06-29 15:30:35 +02:00
Corinna Vinschen 074ca98595 newlib: libm/complex/Makefile.in: regenerate 2017-06-29 13:55:10 +02:00
Aditya Upadhyay 45ae81fc91 Adding csinl.c in Makefile.am
Signed-off-by: Aditya Upadhyay <aadit0402@gmail.com>
2017-06-29 13:54:34 +02:00
Aditya Upadhyay 5bc320d3b5 Importing csinl.c from NetBSD. 2017-06-29 13:54:31 +02:00
Aditya Upadhyay 72b051888e Importing csinhl.c from NetBSD. 2017-06-29 13:44:32 +02:00
Aditya Upadhyay 0d924f0e02 Importing casinhl.c from NetBSD. 2017-06-29 13:44:32 +02:00
Aditya Upadhyay f834c77e7d Importing ctanl.c from NetBSD. 2017-06-29 13:44:32 +02:00
Aditya Upadhyay 67b376ad3f Importing ctanhl.c from NetBSD. 2017-06-29 13:44:31 +02:00
Aditya Upadhyay c907007fb0 Importing cpowl.c from NetBSD. 2017-06-29 13:44:31 +02:00
Aditya Upadhyay 716d7107e4 Importing conjl.c from NetBSD. 2017-06-29 13:44:31 +02:00
Aditya Upadhyay fdf82d6f1b Importing catanhl.c from NetBSD. 2017-06-29 13:44:31 +02:00
Aditya Upadhyay a168d244c6 Importing casinl.c from NetBSD. 2017-06-29 13:44:31 +02:00
Aditya Upadhyay ed09969078 Importing ccosl.c from NetBSD. 2017-06-29 13:44:31 +02:00
Aditya Upadhyay 28daf6d48b Importing cacosl.c from NetBSD. 2017-06-29 13:44:31 +02:00
Aditya Upadhyay eee8294c42 Adding cephes_subrl.h and cephes_subrl.c from NetBSD. 2017-06-29 13:44:31 +02:00
Aditya Upadhyay b1b12e1e00 Importing cexpl.c from NetBSD. 2017-06-29 13:44:31 +02:00
Aditya Upadhyay 4c2556e935 Importing cprojl.c from NetBSD. 2017-06-29 13:44:31 +02:00
Aditya Upadhyay 3f1f3a2299 Importing cargl.c from NetBSD. 2017-06-29 13:44:31 +02:00
Aditya Upadhyay 436bf2929c Importing csqrtl.c from NetBSD. 2017-06-29 13:44:31 +02:00
Aditya Upadhyay 79c8462d86 Importing clogl.c from NetBSD. 2017-06-29 13:44:31 +02:00
Aditya Upadhyay 934145f311 Importing cacoshl.c from NetBSD. 2017-06-29 13:44:31 +02:00
Dionna Glaze d12fe7b6da unistd.h: Remove trailing whitespace 2017-06-29 08:34:19 +02:00
Corinna Vinschen 01a5a306da unistd.h: remove mktemp
mktemp is already correctly declared in stdlib.h

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-06-29 08:32:33 +02:00
Dionna Glaze f70aad3de4 Make gethostname, getdtablesize, mktemp, ualarm available in BSD, XOPEN_SOURCE >= 500. 2017-06-29 08:30:33 +02:00
Sebastian Pop 9938a64ca9 aarch64: optimize the unaligned case of memcmp
This brings to newlib a performance improvement that we developed in Bionic
libc.  That change has been submitted for review to Bionic libc:
https://android-review.googlesource.com/418279

A similar patch has been submitted for review in glibc:
https://sourceware.org/ml/libc-alpha/2017-06/msg01143.html

Patch written by Vikas Sinha and Sebastian Pop.

The performance was measured on the bionic-benchmarks on a hikey (aarch64 8xA53)
board. There was no performance change to the existing benchmark
and a performance improvement on the new benchmark for memcmp
on the unaligned side. The new benchmark has been submitted for
review at https://android-review.googlesource.com/414860

The overall performance improves by 18% for the small data set 8
and the performance improves by 450% for the large data set 64k.

The base is with the libc from /system/lib64. The bionic libc
with this patch is in /data.

hikey:/data # export LD_LIBRARY_PATH=/system/lib64
hikey:/data # ./bionic-benchmarks --benchmark_filter='BM_string_memcmp*'
Run on (8 X 2.4 MHz CPU s)
Benchmark                                Time           CPU Iterations
----------------------------------------------------------------------
BM_string_memcmp/8                      30 ns         30 ns   22955680    251.07MB/s
BM_string_memcmp/64                     57 ns         57 ns   12349184   1076.99MB/s
BM_string_memcmp/512                   305 ns        305 ns    2297163   1.56496GB/s
BM_string_memcmp/1024                  571 ns        571 ns    1225211   1.66912GB/s
BM_string_memcmp/8k                   4307 ns       4306 ns     162562   1.77177GB/s
BM_string_memcmp/16k                  8676 ns       8675 ns      80676   1.75887GB/s
BM_string_memcmp/32k                 19233 ns      19230 ns      36394   1.58695GB/s
BM_string_memcmp/64k                 36986 ns      36984 ns      18952   1.65029GB/s
BM_string_memcmp_aligned/8             199 ns        199 ns    3519166   38.3336MB/s
BM_string_memcmp_aligned/64            386 ns        386 ns    1810734   158.073MB/s
BM_string_memcmp_aligned/512          1735 ns       1734 ns     403981   281.525MB/s
BM_string_memcmp_aligned/1024         3200 ns       3200 ns     218838   305.151MB/s
BM_string_memcmp_aligned/8k          25084 ns      25080 ns      28180   311.507MB/s
BM_string_memcmp_aligned/16k         51730 ns      51729 ns      13521   302.057MB/s
BM_string_memcmp_aligned/32k        103228 ns     103228 ns       6782   302.727MB/s
BM_string_memcmp_aligned/64k        207117 ns     207087 ns       3450   301.806MB/s
BM_string_memcmp_unaligned/8           339 ns        339 ns    2070998   22.5302MB/s
BM_string_memcmp_unaligned/64         1392 ns       1392 ns     502796   43.8454MB/s
BM_string_memcmp_unaligned/512        9194 ns       9194 ns      76133   53.1104MB/s
BM_string_memcmp_unaligned/1024      18325 ns      18323 ns      38206   53.2963MB/s
BM_string_memcmp_unaligned/8k       148579 ns     148574 ns       4713   52.5831MB/s
BM_string_memcmp_unaligned/16k      298169 ns     298120 ns       2344   52.4118MB/s
BM_string_memcmp_unaligned/32k      598813 ns     598797 ns       1085    52.188MB/s
BM_string_memcmp_unaligned/64k     1196079 ns    1196083 ns        540   52.2539MB/s

hikey:/data # export LD_LIBRARY_PATH=/data
hikey:/data # ./bionic-benchmarks --benchmark_filter='BM_string_memcmp*'
Run on (8 X 2.4 MHz CPU s)
Benchmark                                Time           CPU Iterations
----------------------------------------------------------------------
BM_string_memcmp/8                      30 ns         30 ns   23209918   252.802MB/s
BM_string_memcmp/64                     57 ns         57 ns   12348447   1076.95MB/s
BM_string_memcmp/512                   305 ns        305 ns    2296878   1.56471GB/s
BM_string_memcmp/1024                  572 ns        571 ns    1224426    1.6689GB/s
BM_string_memcmp/8k                   4309 ns       4308 ns     162491   1.77109GB/s
BM_string_memcmp/16k                  9348 ns       9345 ns      74894   1.63285GB/s
BM_string_memcmp/32k                 18329 ns      18322 ns      38249    1.6656GB/s
BM_string_memcmp/64k                 36992 ns      36981 ns      18952   1.65045GB/s
BM_string_memcmp_aligned/8             199 ns        199 ns    3513925   38.3162MB/s
BM_string_memcmp_aligned/64            386 ns        386 ns    1814038   158.192MB/s
BM_string_memcmp_aligned/512          1735 ns       1735 ns     402279   281.502MB/s
BM_string_memcmp_aligned/1024         3204 ns       3202 ns     218761   304.941MB/s
BM_string_memcmp_aligned/8k          25577 ns      25569 ns      27406   305.548MB/s
BM_string_memcmp_aligned/16k         52143 ns      52123 ns      13522   299.769MB/s
BM_string_memcmp_aligned/32k        105169 ns     105127 ns       6637    297.26MB/s
BM_string_memcmp_aligned/64k        206508 ns     206383 ns       3417   302.835MB/s
BM_string_memcmp_unaligned/8           282 ns        282 ns    2482953    27.062MB/s
BM_string_memcmp_unaligned/64          542 ns        541 ns    1298317    112.77MB/s
BM_string_memcmp_unaligned/512        2152 ns       2152 ns     325267   226.915MB/s
BM_string_memcmp_unaligned/1024       4025 ns       4025 ns     173904   242.622MB/s
BM_string_memcmp_unaligned/8k        32276 ns      32271 ns      21818    242.09MB/s
BM_string_memcmp_unaligned/16k       65970 ns      65970 ns      10554   236.851MB/s
BM_string_memcmp_unaligned/32k      131241 ns     131242 ns       5129    238.11MB/s
BM_string_memcmp_unaligned/64k      266159 ns     266160 ns       2661   234.821MB/s
2017-06-26 10:22:40 +02:00
Yaakov Selkowitz ec86124748 string: fix strverscmp doc inclusion
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-06-19 11:52:02 -05:00
Yaakov Selkowitz 59e09b6419 string: add strverscmp
The actual implementation is from musl (MIT license).

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-06-19 08:16:42 -05:00
Thomas Preud'homme 0c081aa62c Fix guard for siginfo_t and pthread_t definition
Commit 8a3b3bb4d7 changed the guard on
some functions from _POSIX_THREADS to __POSIX_VISIBLE. As a consequence,
some use of siginfo_t and pthread_t became visible under configurations
where _POSIX_THREADS is unset but __POSIX_VISIBLE is. Build then fails
because the definition of those types are still unavailable.

This commit make those type definition visible for __POSIX_VISIBLE
configurations. This requires moving the siginfo_t definition out of the
RTEMS specific definitions in sys/signal.h while still guarding it
against cygwin case.
2017-06-19 13:00:05 +02:00
Corinna Vinschen 14ea06212b Revert "Don't overread or write memory returned by _DTOA_R"
This reverts commit efaef1bba2.
2017-06-19 12:57:16 +02:00
Yaakov Selkowitz dde6af6f82 Export XSI sigpause
There are two common sigpause variants, both of which take an int argument.
If you request _XOPEN_SOURCE or _GNU_SOURCE, you get the System V version,
which removes the given signal from the process's signal mask; otherwise
you get the BSD version, which sets the process's signal mask to the given
value.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-06-14 14:23:52 -05:00
Joel Sherrill 40ca6f02ed newlib/MAINTAINERS: Add OS maintainers section and myself for RTEMS and Write After Approval. 2017-06-14 13:44:02 -05:00
Yaakov Selkowitz 8a3b3bb4d7 Feature test macros overhaul: signal.h (part 3)
Notably, sigaction and friends are POSIX, but the form of sigpause
currently provided is BSD.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-06-14 10:18:15 -05:00
Yaakov Selkowitz c347bb6469 stdio.h: guard function macros with !__cplusplus
While POSIX allows these functions to also be defined as macros in C, in
C++ this is not allowed, and prevents these names (particularly feof) from
being used in a custom namespace.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-06-14 10:18:14 -05:00
Aditya Upadhyay 35cd6863fb ccoshl: Align formatting to upstream
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-06-14 10:36:38 +02:00
Aditya Upadhyay ed82849b8f Importing ccoshl.c from netbsd.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-06-13 10:41:06 +02:00
Sebastian Huber 0fbd27dd1e Remove FreeBSD specifics from RTEMS <arpa/inet.h>
For whatever reason FreeBSD renames several functions provided by
<arpa/inet.h> and uses weak references to provide the standard function
names.  This causes problems on targets lacking proper support for weak
references.  We do not need this function renaming on RTEMS.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-06-12 08:41:24 +02:00
Silviu Baranga efaef1bba2 Don't overread or write memory returned by _DTOA_R
Don't over-read memory returned by _DTOA_R, and never write to it
since the result might be a string literal.

For example, when doing:
  swprintf(tt, 20, L"%.*f", 6, 0.0);

we will get back "0".

Instead, write the result returned by _DTOA_R to the output buffer.
After this, write the 0 chars directly to the the output buffer
(if there are any). This also has the (marginal) advantage that
we read/write less memory overall.
2017-06-09 15:30:47 +02:00
Sebastian Huber e9085e0ccd Fix RTEMS ioctl() declaration
Using uint32_t for ioctl_command_t does not work well on 64-bit targets.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-06-07 15:46:20 +02:00
Sebastian Huber dc93d7adff Update FreeBSD revision of RTEMS <sys/bitset.h>
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-06-07 15:46:20 +02:00
Sebastian Huber fd5d052d40 Fix some RTEMS CPUSET(9) macros
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-06-07 15:46:19 +02:00
Sebastian Huber c29f5b219d Fix RTEMS CPU_EQUAL_S()
According to the FreeBSD man page BIT_CMP() returns true in case the two
sets are NOT equal.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2017-06-07 15:46:19 +02:00
Sebastian Huber ffcaf32108 Add myself to Write After Approval 2017-06-07 14:36:51 +02:00