Commit Graph

18014 Commits

Author SHA1 Message Date
Corinna Vinschen 5224eb7517 cygwin: unlink: drop redundant check for netapp FS
The try_to_bin function isn't called for netapp FSes anyway, so testing
for this FS type in the function is moot.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-10-18 16:13:48 +02:00
Corinna Vinschen 7127e8ef3b cygwin: unlink: Fix typos in comments
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-10-18 16:12:42 +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
Yaakov Selkowitz 747f31854a cygwin: fix gethostbyaddr argument types
The first argument of gethostbyaddr needs to accept a generic pointer
to be compatible with e.g. struct in_addr *.  This caused an issue
compiling krb5-1.15.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-10-10 13:51:23 -05:00
Yaakov Selkowitz 0b45b053e8 Feature test macros overhaul: Cygwin netdb.h
herror etc. are MISC, rcmd etc. are BSD, addrinfo functions are
POSIX.1-2001, except for IDN functionality which is GNU.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-10-10 13:50:46 -05:00
Michael Haubenwallner 1adbd77cab cygwin: fix potential buffer overflow in fork
When fork fails, we can use "%s" now with system_sprintf for the errmsg
rather than a (potentially too small) buffer for the format string.

* fork.cc (fork): Use "%s" with system_printf now.
2017-10-10 15:51:06 +02:00
Michael Haubenwallner 4449971295 cygwin: fix potential buffer overflow in small_sprintf
With "%C" format string, argument may convert in up to MB_LEN_MAX bytes.
Relying on sys_wcstombs to add a trailing zero here requires us to
provide a large enough buffer.

* smallprint.c (__small_vsprintf): Use MB_LEN_MAX+1 bufsize for "%C".
2017-10-10 13:35:16 +02:00
Tamar Christina 111b6813fb Fix multido compilation on ARM
The previous multi-build implementation was copying the config.status from the parent
multilib directory when building the different semihosting variants. It did so because
the configuration doesn't change. However when you use a relative path to configure it
turns out that the paths inside the config.status are also relative.

To fix this, the srcdir is adjusted from the initial configuration instead of copying it.

Tested on aarch64-none-elf and arm-none-eabi.

Signed-off-by: Tamar Christina <tamar.christina@arm.com>
2017-10-09 19:03:52 +02:00
Michael Haubenwallner 4bee8c48df cygwin: initialize variable for stack unwinding
The third argument of RtlLookupFunctionEntry actually is documented as
_Inout_opt_ for both x64 and ARM, although generic doc says _Out_ only.

* exceptions.cc (__unwind_single_frame): Initialize hist variable.
2017-10-09 18:58:52 +02:00
Corinna Vinschen 7346a162f2 cygwin: disable -Wframe-address warning only on GCC 6 or later
This is required as long as we don't have a GCC 6.x cross compiler
on Linux.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-10-09 18:08:10 +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
Alexander Fedotov e7eb978881 adjust libnosys config for aarch64 to avoid linker error when switching from rdimon.specs to nosys.specs 2017-10-09 17:53:41 +02:00
Ken Brown 51c6ef6b82 cygwin: Remove workaround for GCC 6 null pointer check warnings 2017-10-09 11:44:11 +02:00
Ken Brown 7212b571a5 cygwin: Remove comparison of 'this' to NULL in _pinfo::exists
Fix all callers.
2017-10-09 11:44:11 +02:00
Ken Brown 5952d5f08f cygwin: Remove comparison of 'this' to 'NULL' in _pinfo::kill
Fix all callers.
2017-10-09 11:44:11 +02:00
Ken Brown d17c45f200 cygwin: Remove comparison of 'this' to 'NULL' in _pinfo::environ
Fix all callers.
2017-10-09 11:44:11 +02:00
Ken Brown 6cd1978fc8 cygwin: Remove comparison of 'this' to 'NULL' in _pinfo::fd
Fix all callers.
2017-10-09 11:44:11 +02:00
Ken Brown 56f23a5107 cygwin: Remove comparison of 'this' to 'NULL' in _pinfo::pipe_fhandler
Fix all callers.
2017-10-09 11:44:11 +02:00
Ken Brown d1ea8f4a46 cygwin: Remove comparison of 'this' to 'NULL' in _pinfo::commune_request
Fix all callers.
2017-10-09 11:44:11 +02:00
Ken Brown 911f7d628d cygwin: Remove comparison of 'this' to 'NULL' in _pinfo::cmdline
Fix all callers.
2017-10-09 11:44:11 +02:00
Ken Brown 571b7689bb cygwin: Remove comparison of 'this' to 'NULL' in _pinfo::cwd
Fix all callers.
2017-10-09 11:44:11 +02:00
Ken Brown be436ad2a3 cygwin: Remove comparison of 'this' to 'NULL' in _pinfo::root
Fix all callers.
2017-10-09 11:44:11 +02:00
Ken Brown 504959d8fc cygwin: Remove comparison of 'this' to 'NULL' in _pinfo::fds
Fix all callers.
2017-10-09 11:44:11 +02:00
Ken Brown 47bbe23105 cygwin: Remove comparisons of 'this' to 'NULL' in fhandler_dsp.cc
Fix all callers.
2017-10-09 11:44:10 +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
Yaakov Selkowitz 05cfd1aed8 cygwin: workaround GCC 6 changes
GCC 6 includes a number of new warnings which cause Cygwin to either not
compile, or not work properly even if said warnings are ignored:

https://cygwin.com/ml/cygwin-developers/2017-09/msg00000.html
https://gcc.gnu.org/gcc-6/porting_to.html

For now, we use the flags necessary to revert to GCC 5 behaviour until we
can fix the code properly.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-09-12 14:30:34 -05:00
Yaakov Selkowitz 21a39b20a5 Revert "cygwin: only expose /dev/con{in,out,sole} when started from a Windows console"
This caused serious regressions when running from a cmd window:

https://cygwin.com/ml/cygwin/2017-09/msg00114.html

This reverts commit b706c6b479.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-09-11 23:07:55 -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 ff53f489fa cygwin: Document crypt_r
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-09-02 22:48:55 -05:00
Achim Gratz 5325111d03 Remove some dangerous advice from the FAQ 2017-09-02 20:41:43 +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
Corinna Vinschen cdbec10e79 cygwin: add strptime %F fix to release notes
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-08-29 21:12:21 +02:00
Brian Inglis d8e2463c75 winsup/cygwin/libc/strptime.cc(__strptime) fix %F width 2017-08-29 21:10:06 +02:00
Corinna Vinschen 4dfaef8141 cygwin: document %s support in strptime
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-08-29 11:16:13 +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