Commit Graph

945 Commits

Author SHA1 Message Date
Corinna Vinschen a6a477fa81 POSIX-1.2008 per-thread locales, groundwork part 1
Introduce first cut of struct _thr_locale_t used for the locale_t definition.
Introduce global instance called __global_locale used by default.
Introduce internal inline functions __get_global_locale, __get_locale_r,
__get_current_locale.

Remove usage of global variables in favor of accessor functions pointing to
__global_locale for now.  Include all local headers in locale subdir from
setlocale.h to get single include for internal locale access.

Introduce __CTYPE_PTR macro to replace direct access to __ctype_ptr__
and use throughout in isxxx functions.

Signed-off by: Corinna Vinschen <corinna@vinschen.de>
2016-08-15 10:56:56 +02:00
Yaakov Selkowitz 51b669f679 Do not include wctype.h in wchar.h with _GNU_SOURCE
_GNU_SOURCE generally enables all features, but in this case the POSIX
requirement to #include <wctype.h> for these is preferred.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-08-12 13:44:26 -05:00
Yaakov Selkowitz b14a1dbc86 Define va_list in stdio.h and wchar.h
This typedef, along with that of FILE in wchar.h, were XSI prior to
inclusion in POSIX.1-2008.

Fixes: https://sourceware.org/ml/newlib/2016/msg00640.html

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-08-12 11:43:14 -05:00
Yaakov Selkowitz 1e22b408b2 Include wctype.h in wchar.h as an XSI extension
However, note that this inclusion is obsolescent in SUSv4 and therefore
may be removed in the next revision.

http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/wchar.h.html

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-08-11 16:33:43 -05:00
Yaakov Selkowitz 05aca4d94d Feature test macros overhaul: wctype.h
iswblank was first introduced in C99.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-08-11 14:16:24 -05:00
Yaakov Selkowitz d2e0e14ef7 Feature test macros overhaul: wchar.h, part 2
Many wchar.h functions were never properly guarded; these changes should
make the header fully compliant.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-08-11 11:18:18 +02:00
Gedare Bloom 9a80679aae rtems: define _POSIX_CLOCK_SELECTION feature
Enable definition of clock_nanosleep() since it was added to RTEMS.

Signed-off-by: Joel Sherrill <joelemail@rtems.org>
2016-08-08 11:12:23 -05:00
Yaakov Selkowitz 52d940e263 math.h: fix guards on basic M_ constants
MAXFLOAT, M_PI, and friends date back to at least XPG4v2, so this guard
was incorrect even prior to the feature test macros overhaul.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-07-15 09:06:53 -05:00
Corinna Vinschen 28d393c001 Fix typo in comment added by previous commit
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-07-06 18:23:21 +02:00
Corinna Vinschen a68ca43b90 Redefine locale info in struct _reent for per-thread locales
The _reent members _current_category and _current_locale are not
used at all.  _current_locale is set to "C" in various points of
the code but its value is just as unused as _current_category.

This patch redefines these members without changing the size of the
structure to allow for an implementation of per-thread locales per
POSIX-1.2008 (i.e. uselocale and usage of the per-thread locale in
subsequent function calls).

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-07-06 15:41:35 +02:00
Corinna Vinschen 16d3849884 sys/time.h: Change visibility of gettimeofday.
gettimeofday is currently guarded with __MISC_VISIBLE || __XSI_VISIBLE.
However, gettimeofday should be always visible, as in GLibc.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-06-20 10:11:24 +02:00
Ken Brown a6a7398232 Declare crypt, encrypt, and setkey per Posix 2016-06-09 16:37:15 +02:00
Corinna Vinschen 357da5bc32 math.h: Replace usage of INT_MAX with __INT_MAX__
Using INT_MAX requires to include limits.h on most targets.
Math.h must not rely on that.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-05-31 16:30:46 +02:00
Yaakov Selkowitz 95644157c1 Feature test macros: ctermid, cuserid
The proper location for these functions has always been <stdio.h>, however
XPG4 and SUSv2 did mandate a duplicate declaration in <unistd.h>.  cuserid
was dropped in SUSv3 (it was marked legacy since XPG4) and the ctermid
declaration in <unistd.h> was made optional and obsolete in SUSv4.

Fixes: https://cygwin.com/ml/cygwin/2016-05/msg00002.html
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-05-23 11:20:29 -05:00
Corinna Vinschen 72ded59447 Make sure to have full configuration info in sys/_types.h.
The following testcase:

  $ cat > test.c <<EOF
  #include <sys/select.h>
  #include <sys/time.h>
  EOF
  $ gcc -c test.c

emits the following error:

  /usr/include/sys/reent.h:276:3: error: expected specifier-qualifier-list befor
e ‘_fpos64_t’
     _fpos64_t _EXFNPTR(_seek64, (struct _reent *, _PTR, _fpos64_t, int));
     ^

The reason is that the load order from sys/select.h includes sys/_types.h
before sys/config.h has been included from anywhere else.  sys/_types.h
defines _fpos64_t only if __LARGE64_FILES is defined, but it never is in
this scenario.  So sys/_types.h has to make sure to get the configuration
info by itself.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-05-18 21:05:31 +02:00
Sebastian Huber 51062c856b Always provide register_t via <sys/types.h>
Always provide register_t via <sys/types.h> for glibc and BSD
compatibility.  Define __BIT_TYPES_DEFINED__ to 1 like glibc for legacy
header files.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-21 10:28:13 +02:00
Corinna Vinschen 878e65d354 Simplify guard against defining pthread types on Cygwin
* libc/include/sys/types.h: Fix a comment about Cygwin.  Simplify
	guarding pthread types against inclusion on Cygwin.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-04-21 10:27:29 +02:00
Sebastian Huber 9bb91b6c6b Resurrect <machine/types.h> for <sys/types.h>
Resurrect <machine/_user_types.h> for use in <sys/types.h>.  Newlib
targets may provide an own version of <machine/types.h> in their machine
directory to add custom user types for <sys/types.h>.  Check the
_SYS_TYPES_H header guard to prevent a direct include of
<machine/types.h>, since the <machine/types.h> file is a Newlib
speciality.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-21 10:08:19 +02:00
Sebastian Huber 60f867812c Remove duplicate int*_t definitions
Types are already available via <sys/_stdint.h> included some lines
above.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-20 15:58:00 +02:00
Sebastian Huber 2b569add11 Remove duplicate u_int*_t definitions
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-20 15:56:54 +02:00
Sebastian Huber c54ee3653b Add __ssize_t to <sys/_types.h>
Add __ssize_t to <sys/_types.h> for BSD compatibility.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-19 23:45:36 +02:00
Sebastian Huber 7d22dc338d Provide in_port_t via <sys/types.h>
Provide in_port_t via <sys/types.h> if __BSD_VISIBLE for BSD
compatibility.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-19 23:40:53 +02:00
Sebastian Huber 3ce1e7901e Provide in_addr_t via <sys/types.h>
Provide in_addr_t via <sys/types.h> if __BSD_VISIBLE for BSD
compatibility.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-19 17:21:38 +02:00
Sebastian Huber e03a7056a6 Introduce __sa_family_t for BSD compatibiliy
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-19 17:06:49 +02:00
Sebastian Huber cb376b255d Introduce __socklen_t for BSD compatibility
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-19 16:51:00 +02:00
Sebastian Huber 76a2110b47 BSD compatibility for <machine/endian.h>
Introduce <machine/_endian.h> to let target based customization of
<machine/endian.h> via

 * _LITTLE_ENDIAN,
 * _BIG_ENDIAN,
 * _PDP_ENDIAN, and
 * _BYTE_ORDER.

defines.  Add definitions expected by FreeBSD to
<machine/endian.h> like

 * _QUAD_HIGHWORD,
 * _QUAD_LOWWORD,
 * __bswap16(),
 * __bswap32(),
 * __bswap64(),
 * __htonl(),
 * __htons(),
 * __ntohl(), and
 * __ntohs().

Also, if __BSD_VISIBLE

 * LITTLE_ENDIAN,
 * BIG_ENDIAN,
 * PDP_ENDIAN, and
 * BYTE_ORDER.

Targets that define __machine_host_to_from_network_defined in
<machine/_endian.h> must provide their own implementation of

 * __htonl(),
 * __htons(),
 * __ntohl(), and
 * __ntohs(),

otherwise a default implementation is provided by <machine/endian.h>.
In case of GCC defines to builtins are used.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-19 16:36:51 +02:00
Sebastian Huber af5bbbec81 Fix definition of __size_t
Fix definition of __size_t in case __SIZE_TYPE__ is not defined.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-18 12:09:50 +02:00
Sebastian Huber 78c9002201 Provide FNONBLOCK for BSD compatiblity
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-15 14:51:40 +02:00
Sebastian Huber 3ad9b2fcba Provide __size_t via <sys/_types.h>
Various FreeBSD source and header files need a typedef __size_t via
<sys/_types.h>.  Unfortunately the GCC provided <stddef.h> uses

	#if (defined (__FreeBSD__) && (__FreeBSD__ >= 5)) \
	  || defined(__DragonFly__) \
	  || defined(__FreeBSD_kernel__)
	/* __size_t is a typedef on FreeBSD 5, must not trash it. */
	#elif defined (__VMS__)
	/* __size_t is also a typedef on VMS.  */
	#else
	#define __size_t
	#endif

and therefore defines __size_t on Newlib targets which would trash a
__size_t typedef.  Include <stddef.h> before <sys/_types.h> in
<sys/types.h> and undefine __size_t in <sys/_types.h> as a workaround.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-15 14:51:40 +02:00
Sebastian Huber 40928e19e4 Include <machine/endian.h> in <sys/types.h>
Include <machine/endian.h> in <sys/types.h> if __BSD_VISIBLE for BSD
compatibility.  This is in line with glibc <sys/types.h>.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-15 14:51:40 +02:00
Sebastian Huber 7656cefc07 Add __va_list to <sys/_types.h>
Add __va_list to <sys/_types.h> for BSD compatibility.  In FreeBSD this
typedef is provided by the various architecture-specific
<machine/_types.h> in a copy and paste manner.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-15 14:51:40 +02:00
Christian Mauderer 770e94f3fd Add BSD guards for fixed-size integer types
Signed-off-by: Christian Mauderer <christian.mauderer@embedded-brains.de>
2016-04-15 14:51:40 +02:00
Sebastian Huber 75ab33bd5e Add BSD guard for useconds_t
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-15 14:51:40 +02:00
Sebastian Huber 4fda5a75fd Add BSD guard for nlink_t
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-15 14:51:40 +02:00
Sebastian Huber f3e587d30a Provide POSIX defined fsblkcnt_t and fsfilcnt_t
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-15 14:51:40 +02:00
Sebastian Huber c5d5030aea Provide POSIX defined blksize_t in <sys/types.h>
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-15 14:51:40 +02:00
Sebastian Huber 57d2718c0e Provide POSIX defined blkcnt_t in <sys/types.h>
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-15 14:51:40 +02:00
Sebastian Huber 365bc664e9 Add BSD guard for timer_t
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-15 14:51:39 +02:00
Sebastian Huber 326f8962a1 Add BSD guard for clockid_t
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-15 14:51:39 +02:00
Sebastian Huber 5d0c2b87c8 Add BSD guard for time_t
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-15 14:51:39 +02:00
Sebastian Huber f18eebf797 Add BSD guard for clock_t
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-15 14:51:39 +02:00
Sebastian Huber eba91a5d0a Define mode_t via __mode_t
Use __uint32_t to avoid the use of GCC-specific _ST_INT32.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-15 14:51:39 +02:00
Sebastian Huber e77040b2bf Add BSD guard for ino_t in <sys/types.h>
Introduce internal type __ino_t.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-15 14:51:39 +02:00
Sebastian Huber eeded3c170 Provide POSIX defined id_t in <sys/types.h>
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-15 14:51:39 +02:00
Sebastian Huber 8a5af1a184 Use __machine_*_t_defined for internal types
Newlib defines defaults for internal types via <sys/_types.h> and uses
<machine/_types.h> to let targets define their own type if necessary.

Previously for example

	#ifndef __dev_t_defined
	typedef short __dev_t;
	#endif

However, the __*_t_defined pattern conflicts with the glibc type guard
pattern for user types, e.g. dev_t in this example.  Introduce a
__machine_*_t_defined pattern for internal types (defined by
<machine/_types.h>, used by <sys/_types.h>).  For example

	#ifndef __machine_dev_t_defined
	typedef short __dev_t;
	#endif

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-15 14:51:39 +02:00
Yaakov Selkowitz 9f90ae0435 Feature test macros overhaul: string.h and strings.h overlaps
strings.h is the header mandated for these functions in POSIX.1 prior to
2008 (when most of these were removed).  The declarations in string.h are
only for BSD compatibility.  But when both headers are included, avoid
duplicate declarations.

Also, mark stpcpy and stpncpy as POSIX.1-2008.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-04-13 23:50:11 -05:00
Corinna Vinschen 7b39124400 Get rid of some special cases for Cygwin in sys/types.h
Remove off_t typedef from cygwin/types.h thus relying on sys/types.h.
Introduce winsup/cygwin/machine/_types.h and move some types shared
with newlib into it.  Get rid of their definition in cygwin/types.h.
Add same handling for __key_t/key_t as for the other types.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-04-13 21:00:17 +02:00
Sebastian Huber de51829c17 Add BSD guards for off_t, dev_t, uid_t, and gid_t
Copy definitions of off_t, dev_t, uid_t, and gid_t verbatim from latest
FreeBSD <sys/types.h>.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-13 13:54:39 +02:00
Sebastian Huber 477463a201 Eliminate use of Newlib-specific <machine/types.h>
This change solves a glibc/BSD compatibility problem.

glibc and BSD use double underscore types for internal types.  The Linux
port of Newlib uses some glibc provided internal type definitions which
are not protected by guard defines, e.g. __off_t.  To avoid a conflict
Newlib uses single underscore types for some internal types, e.g.
_off_t.  However, for BSD compatibility we have to define the internal
types with double underscore names in <sys/_types.h>.

The header file <machine/types.h> is Newlib-specific.  It was used
instead of <sys/_types.h> to provide the internal type definitions
_CLOCK_T, _TIME_T_, _CLOCKID_T_, _TIMER_T_, and __suseconds_t.  Move
these definitions to <sys/_types.h> (there exist two instances of this
file, one for Linux and one for all other targets).  This makes the
_HAVE_SYSTYPES configuration define obsolete (could possibly break the
__RDOS__ target).  Use the standard <sys/_types.h> include throughout.

Move __loff_t defintion to default (non-Linux) <sys/_types.h>.  Define
it via _off64_t to avoid a dependency on the compiler.

Provide the __off_t definition via default (non-Linux) <sys/_types.h>
based on _off_t for all systems except Cygwin.  For Cygwin use _off64_t.
Define off_t via __off_t.

Provide the __pid_t definition via default (non-Linux) <sys/_types.h>.
This prevents a potential __pid_t and pid_t incompatibility.  Add BSD
guard defines for pid_t.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-13 13:30:27 +02:00
Sebastian Huber 3156cdcc80 Move kernel dependent parts of <sys/time.h>
Move the kernel dependent parts of <sys/time.h> to new system-specific
header file <machine/_time.h>.  Provide an empty default implementation.
Add a specialized implementation for RTEMS.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-04-08 11:34:42 +02:00
Yaakov Selkowitz cd84d1c2d0 math: update isinf/isnan function comments after move to math.h
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-04-05 08:49:44 -05:00
Yaakov Selkowitz 722e363c4d math: guard BSD finite/isinf/isnan functions properly in math.h
Now that we have properly functioning feature test macros, the BSD
floating-point classification functions can go into math.h instead of
the non-standard ieeefp.h, and not under the C99 guard:

http://man7.org/linux/man-pages/man3/finite.3.html

The isnan function was in earlier versions of SUS but removed starting with
POSIX.1-2001, compare:

http://pubs.opengroup.org/onlinepubs/007908799/xsh/math.h.html
http://pubs.opengroup.org/onlinepubs/009695399/basedefs/math.h.html

Note that the isinf and isnan functions (but not the variants) conflict
with functions by the same name in C++11, hence they (and only they)
need to be hidden:

https://sourceware.org/git/?p=glibc.git;a=commit;h=d9b965fa56350d6eea9f7f438a0714c7ffbb183f
https://sourceware.org/git/?p=glibc.git;a=commit;h=3c47c83a9730c20e602694505b9278c25637b0d0

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-04-04 14:13:21 -05:00
Yaakov Selkowitz 9e277154ab Feature test macros overhaul: tar.h
TSVTX was marked XSI beginning with SUSv3, compare:

http://pubs.opengroup.org/onlinepubs/007908799/xsh/tar.h.html
http://pubs.opengroup.org/onlinepubs/009695399/basedefs/tar.h.html
http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/tar.h.html

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-04-04 10:25:29 -05:00
Yaakov Selkowitz 3f00f4f9fc Add cpio.h
This header dates back to XPG3:

http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/cpio.h.html

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-04-04 10:25:27 -05:00
Yaakov Selkowitz d55d03a87d cygwin: make POSIX/XSI version macros dependent on feature test macros
Each version of SUS specifies a different value for _POSIX_VERSION,
_POSIX2_VERSION, and _XOPEN_VERSION.  glibc also changes the value
of the other _POSIX2_ variables but not the _POSIX_* variables.

_POSIX_TIMERS should be set to a version number, not just 1.

The _POSIX_V7_* macros were missing, which was not noticed because
the V6 values were aliased in sysconf (<unistd.h>).

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-04-04 10:25:25 -05:00
Igor Venevtsev 5d3ad3b123 Add Intel MCU target
Intel MCU System V ABI are incompartible with i386 System V ABI:
    o Minimum instruction set is Intel Pentium ISA minus x87 instructions
    o No x87 or vector registers
    o First three args are passed in %eax, %edx and %ecx
    o Full specification available here:
      https://github.com/hjl-tools/x86-psABI/wiki/iamcu-psABI-0.7.pdf

newlib/
    * configure.host: Add new ix86-*-elfiamcu target

newlib/libc/include/
    * setjmp.h: Change _JBLEN for Intel MCU target

newlib/libc/machine/i386/
    * memchr.S:  (memchr)  Target-specific size-optimized version
    * memcmp.S:  (memcmp)  Likewise
    * memcpy.S:  (memcpy)  Likewise
    * memmove.S: (memmove) Likewise
    * memset.S:  (memset)  Likewise
    * setjmp.S:  (setjmp)  Likewise
    * strchr.S:  (strchr)  Likewise
    * strlen.S:  (strlen)  Likewise

newlib/libc/stdlib/
    * srtold.c:  (__flt_rounds) Disable for Intel MCU
2016-04-04 16:32:07 +02:00
Corinna Vinschen 792e51b721 Add missing long double functions to Cygwin
This patch adds the long double functions missing in newlib to Cygwin.
Apart from some self-written additions (exp10l, finite{f,l}, isinf{f,l},
isnan{f,l}, pow10l) the files are taken from the Mingw-w64 math lib.
Minor changes were required, e.g. substitue _WIN64 with __x86_64__ and
fixing __FLT_RPT_DOMAIN/__FLT_RPT_ERANGE for Cygwin.

Cygwin:
	* math: New subdir with math functions.
	* Makefile.in (VPATH): Add math subdir.
	(MATH_OFILES): List of object files collected from building files in
	math subdir.
	(DLL_OFILES): Add $(MATH_OFILES).
	${CURDIR}/libm.a: Add $(MATH_OFILES) to build.
	* common.din: Add new functions from math subdir.
	* i686.din: Align to new math subdir.  Remove functions now commonly
	available.
	* x86_64.din: Ditto.
	* math.h: math.h wrapper to define mingw structs used in some files in
	math subdir.
	* include/cygwin/version.h: Bump API minor version.

newlib:
	* libc/include/complex.h: Add prototypes for complex long double
	functions.  Only define for Cygwin.
	* libc/include/math.h: Additionally enable prototypes of long double
	functions for Cygwin.  Add Cygwin-only prototypes for dreml, sincosl,
	exp10l and pow10l.  Explain why we don't add them to newlib.
	* libc/include/tgmath.h: Enable long double handling on Cygwin.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-03-29 14:43:55 +02:00
Joel Sherrill ecf453f963 Add simple versions of random() and srandom()
Prototypes also added for initstate() and setstate() but they
were not implemented in the shared newlib code.

	* newlib/libc/include/cygwin/stdlib.h: Prototypes added.
	* winsup/cygwin/include/cygwin/stdlib.h: Prototypes removed.
	* newlib/libc/stdlib/random.c: New file.
	* newlib/libc/machine/epiphany/machine/stdlib.h: Removed
	* newlib/libc/stdlib/Makefile.am: Added random.c.
	* newlib/libc/stdlib/stdlib.tex: Added random.def.
	* newlib/libc/stdlib/Makefile.in: Regenerated.
2016-03-28 22:39:50 -05:00
Corinna Vinschen 799fdda4d2 math.h: Use GCC builtins for C99 macros where available
GCCs builtin functions are mostly type agnostic and architecture
indepedent.  Prefer to use them if available.

	* libc/include/math.h (fpclassify, isfinite, isinf, isnan,
	isnormal): Use matching GCC builtin functions if built with
	GCC 4.4 or later.
	(signbit): Use matching GCC builtin functions if built with
	GCC 4.0 or later.
	(isgreater, isgreaterequal, isless, islessequal, islessgreater,
	isunordered): Use matching GCC builtin functions if built with
	GCC 2.97 or later.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-03-26 20:33:46 +01:00
Corinna Vinschen b1b46d4580 Drop usage of old-age BSD types in generically used Cygwin headers
u_char, u_short, u_int, u_long are BSD-only types.  Remove them from
Cygwin headers which are supposed to be used in a non-BSD scenario.
Drop special Cygwin handling of those types in sys/types.h.

newlib:
	* libc/include/sys/types.h (u_char,u_short,u_int,u_long): Drop
	Cygwin exception.

cygwin:
	* fhandler_socket.cc (fhandler_socket::ioctl): Accommodate change
	in include/asm/socket.h.  Continue using u_long since that's the
	MS type here.
	* include/asm/socket.h: Since the type given in _IOR/_IOW macros
	is only used for its sizeof, replace u_long with equivalent long.
	* netdb.h (getnetbyaddr): Fix prototype.
	* netinet/ip.h: Replace old BSD-only types with generically defined
	old BSD types (u_char -> u_int8_t, etc).
	* netinet/tcp.h: Ditto.
	* netinet/udp.h: Ditto.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-03-24 15:55:25 +01:00
Corinna Vinschen db5bfdbd8a Define BSD u_intN_t types indiscriminately
The u_intN_t types are BSD types but sanctioned by POSIX.  They are
always defined when using Glibc headers so we follow suit.

newlib:
	* libc/include/sys/types.h: Drop outdated __INTTYPES_DEFINED__
	macro.  Always define u_intN_t types.

cygwin:
	* include/cygwin/types.h: Remove definition of u_intN_t types.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-03-24 15:51:14 +01:00
Yaakov Selkowitz b9bbe1bccb Feature test macros overhaul: C++ TR1
While C++11 was the first version of the standard to use C99 functionality,
TR1 (for C++03) also does, and G++ does not distinguish between C++98 and
C++03, or when TR1 is in use.  Therefore, while not strictly correct for
"pure" C++98, enabling C99 for all C++ usage is the simplest solution (and
much better than always using -D_GNU_SOURCE as on Linux).

See thread starting: https://sourceware.org/ml/newlib/2016/msg00297.html

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-23 16:14:00 -05:00
Corinna Vinschen 3737bc4e98 Drop Cygwin-only posix_memalign prototype
newlib:
	* libc/include/stdlib.h (posix_memalign): Drop __rtmes__ guards.

cygwin:
	* include/cygwin/stdlib.h (posix_memalign): Drop prototype.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-03-23 11:50:27 +01:00
Corinna Vinschen 3f258ada43 Guard u_char,u_short,u_int,u_long with __MISC_VISIBLE
These types are available in SVID as well.

	* libc/include/sys/types.h (u_char,u_short,u_int,u_long): Replace
	__BSD_VISIBLE with __MISC_VISIBLE.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-03-23 11:17:59 +01:00
Sebastian Huber 98b615106d Fix "/*" within comment warning
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2016-03-22 22:39:22 +01:00
Yaakov Selkowitz 1e6205b1ae stdio: fseeko/ftello are also POSIX.1-2001
_LARGEFILE_SOURCE, which controls only these two functions, is implicitly
defined by _XOPEN_SOURCE >= 500.  However, they are also later added to
POSIX.1-2001 (and therefore available by default).

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-22 10:50:31 -05:00
Joel Sherrill 1f9599f3a7 pthread.h: Mark pthread_exit() as not returning 2016-03-22 09:48:26 -05:00
Peter Foley 3ba2c39fb2 Add nonnull annotation to posix_memalign.
GCC 6.0+ asserts that the memptr argument to the builtin function
posix_memalign is nonnull.
Add the necessary annotation to the prototype and
remove the now unnecessary check to fix a warning.

newlib/Changelog
newlib/libc/include/stdlib.h: Annotate arg to posix_memalign as
non-null.

winsup/cygwin/ChangeLog
malloc_wrapper.cc (posix_memalign): Remove always true nonnull check.

Signed-off-by: Peter Foley <pefoley2@pefoley.com>
2016-03-21 20:27:16 +01:00
Yaakov Selkowitz d3f203d091 Feature test macros overhaul: signal.h (part 2)
Move the sig*set macros following the functions inside their feature
test macro conditional.

This fixes the build on bare-metal targets following
commit 5c78499ae2.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
Acked-by: Corinna Vinschen <vinschen@redhat.com>
2016-03-18 11:22:32 -05:00
Sebastian Huber f74cf1350e Add arc4random() etc. from OpenBSD 5.8
According to the OpenBSD man page, "A Replacement Call for Random".  It
offers high quality random numbers derived from input data obtained by
the OpenBSD specific getentropy() system call which is declared in
<unistd.h> and must be implemented for each Newlib port externally.  The
arc4random() functions are used for example in LibreSSL and OpenSSH.

Cygwin provides currently its own implementation of the arc4random
family.  Maybe it makes sense to use this getentropy() implementation:

http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/lib/libcrypto/crypto/getentropy_win.c?rev=1.4&content-type=text/x-cvsweb-markup

	* libc/include/stdlib.h (arc4random): Declare if __BSD_VISIBLE.
	(arc4random_buf): Likewise.
	(arc4random_uniform): Likewise.
	* libc/include/sys/unistd.h (getentropy): Likewise.
	* libc/include/machine/_arc4random.h: New file.
	* libc/stdlib/arc4random.c: Likewise.
	* libc/stdlib/arc4random.h: Likewise.
	* libc/stdlib/arc4random_uniform.c: Likewise.
	* libc/stdlib/chacha_private.h: Likewise.
	* libc/sys/rtems/include/machine/_arc4random.h: Likewise.
	* libc/stdlib/Makefile.am (EXTENDED_SOURCES): Add arc4random.c
	and arc4random_uniform.c.
	* libc/stdlib/Makefile.in: Regenerate.
2016-03-18 12:33:41 +01:00
Sebastian Huber 55c239d834 Add timingsafe_memcmp()
This function is used by LibreSSL and OpenSSH and is provided by the
OpenBSD libc.

	* libc/include/string.h (timingsafe_memcmp): Declare.
	* libc/string/timingsafe_memcmp.c: New file.
	* libc/string/Makefile.am: Add new file.
	* libc/string/Makefile.in: Regenerate.
2016-03-18 12:33:40 +01:00
Sebastian Huber 559fd77dda Add timingsafe_bcmp()
This function is used by LibreSSL and OpenSSH and is provided by the
OpenBSD libc.

	* libc/include/string.h (timingsafe_bcmp): Declare.
	* libc/string/timingsafe_bcmp.c: New file.
	* libc/string/Makefile.am: Add new file.
	* libc/string/Makefile.in: Regenerate.
2016-03-18 12:33:40 +01:00
Sebastian Huber 8740fa7fd0 Add explicit_bzero()
This function is used by LibreSSL and OpenSSH and is provided by the
OpenBSD libc.

	* libc/include/string.h (explicit_bzero): Declare.
	* libc/string/explicit_bzero.c: New file.
	* libc/string/Makefile.am: Add new file.
	* libc/string/Makefile.in: Regenerate.
2016-03-18 12:33:40 +01:00
Sebastian Huber a10dacbdac Guard ssize_t definition by _SSIZE_T_DECLARED
This guard is used by FreeBSD <sys/socket.h> for example.  The FreeBSD
network stack is used in RTEMS.

	* newlib/libc/include/sys/types.h (ssize_t): Guard by
	_SSIZE_T_DECLARED.
2016-03-18 12:28:55 +01:00
Yaakov Selkowitz 396942b0b5 Feature test macros overhaul: sys/types.h
The u_int/u_char/etc. BSD types are needed by Cygwin's netinet/*.h
headers, so they always need to be available.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:21 -05:00
Yaakov Selkowitz ee97c4b224 Revert "Remove inclusion of sys/select.h in sys/types.h for backward compat"
This BSDism is still in use (e.g. putty).

This reverts commit 088f7a7239.
2016-03-17 21:09:19 -05:00
Yaakov Selkowitz 04f288851a Feature test macros overhaul: sys/time.h
The inclusion of <sys/select.h> is required also by POSIX.1-2001.
setitimer is XSI, and futimesat is GNU.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:18 -05:00
Yaakov Selkowitz 069e400c91 Feature test macros overhaul: sys/stat.h
Replace all !_POSIX_SOURCE with BSD.  All *at functions depend on
ATFILE; futimens is POSIX.1-2008.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:16 -05:00
Yaakov Selkowitz 03c4ef1c51 Feature test macros overhaul: sys/select.h
Remove !_POSIX_SOURCE conditional; pselect is POSIX.1-2001.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:15 -05:00
Yaakov Selkowitz 73e2f46419 Feature test macros overhaul: wchar.h
open_wmemstream is POSIX.1-2008.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:13 -05:00
Yaakov Selkowitz be657151f1 Feature test macros overhaul: unistd.h
Throughout, use proper internal macros for functions, including those
marked as target-specific.  Use ATFILE for all *at functions.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:12 -05:00
Yaakov Selkowitz 43e5ee83fe Feature test macros overhaul: time.h
Throughout, replace __STRICT_ANSI__ with the proper internal macros.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:10 -05:00
Yaakov Selkowitz 6fe6a822ee Feature test macros overhaul: strings.h
Replace __STRICT_ANSI__ with the proper internal macros for bcmp etc.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:09 -05:00
Yaakov Selkowitz 615d63599b Feature test macros overhaul: string.h
Throughout, remove __STRICT_ANSI__ and use the proper internal macros.

bcmp, bcopy, bzero, index, and rindex were in POSIX prior to 2008.

memrchr is GNU.

strdup and strndup are POSIX.1-2008.

The int-returning form of strerror_r is POSIX.1-2001.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:07 -05:00
Yaakov Selkowitz 84ba25226c Feature test macros overhaul: stdlib.h
Throughout, simplify the C99/C11 conditionals, and replace
__STRICT_ANSI__ with the proper internal POSIX macros.  The _*_r
reentrant functions need not be guarded (and most haven't been) because
such names in the global scope are reserved to the implementation.

atoff is unique to newlib.

dtoa is not actually exported (_dtoa_r is used internally), is
nonstandard, and the declaration conflicts with the code included in
MySQL, NSPR, and SpiderMonkey.

mktemp was removed in POSIX.1-2001.

The qsort_r declarations are reordered so that the GNU version retains
precedence.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:06 -05:00
Yaakov Selkowitz feec81e571 Feature test macros overhaul: stdio.h
Throughout, remove references to __STRICT_ANSI__ and use the proper
internal macros and versions for C99, POSIX, ATFILE for the various *at
functions, or LARGEFILE for fseeko and ftello.

[v]asprintf are GNU extensions, but the *iprintf, *iscanf, and
*asnprintf functions are unique to newlib.

getw and putw were removed from POSIX.1-2001. funopen is BSD, and
fopencookie is GNU.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:04 -05:00
Yaakov Selkowitz 5c78499ae2 Feature test macros overhaul: signal.h
Use proper internal macros for BSD sig_t and GNU sighandler_t.

sigaltstack and friends are XSI even in SUSv4 but in glibc are
nonetheless handled as POSIX.1-2008 (not 2001).

The requirement for the ucontext_t typedef in signal.h was XSI prior to
POSIX.1-2008.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:03 -05:00
Yaakov Selkowitz 25507f80a2 Feature test macros overhaul: pwd.h
getpw*_r dates back to POSIX.1c, and *pwent to XPG4v2.  Both are also BSD.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:01 -05:00
Yaakov Selkowitz 96972e7198 Feature test macros overhaul: pthread.h
Use internal macros for GNU extensions.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:00 -05:00
Yaakov Selkowitz 4e8291b8b0 Feature test macros overhaul: math.h
Simplify the C99 conditionals.  Mark the drem and gamma functions as
BSD|SVID, the Bessel double functions also XSI and the floats also SUSv3.
signgam is BSD|SVID|XSI, and matherr is SVID.  Finally, use the internal
macros to control the symbolic constants.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:08:59 -05:00
Yaakov Selkowitz 86a724b8c0 Feature test macros overhaul: limits.h
Simplify the C99 conditional, and use the internal macro for GNU extensions.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:08:57 -05:00
Yaakov Selkowitz ec4fe40b23 Feature test macros overhaul: grp.h
_PATH_GROUP is a BSDism. getgr*_r are BSD|SVID|POSIX, and the *grent
functions are BSD|SVID|XPG4v2.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:08:56 -05:00
Yaakov Selkowitz d94d983d1b Feature test macros overhaul: fnmatch.h
Use the proper internal macro for GNU extensions.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:08:54 -05:00
Yaakov Selkowitz d2df6d381b Feature test macros overhaul: fcntl.h
Most of the !_POSIX_SOURCE code is BSD, although ironically some were
added to POSIX.1-2001.

Use the ATFILE conditional for most of the *at functions, except
futimesat which is GNU.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:08:53 -05:00
Yaakov Selkowitz d2937299fa Feature test macros overhaul: dirent.h
MAXNAMLEN is a BSDism.

Use the proper internal macros instead of !_POSIX_SOURCE.  telldir and
seekdir are XSI, scandir and alphasort are POSIX.1-2008, and scandirat
is GNU.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:08:51 -05:00
Yaakov Selkowitz 575608b202 Feature test macros overhaul: ctype.h
Simplify C99 test for isblank.  isascii and toascii are BSD|SVID|XSI.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:08:50 -05:00
Yaakov Selkowitz 6ba26630e0 Feature test macros overhaul: sys/features.h
This is the complete rework of the feature tests macros for better
compatibility with GNU libc, primarily based on the Linux man pages
documentation:

http://man7.org/linux/man-pages/man7/feature_test_macros.7.html

The previous implementation was flawed in its approach that macros were
often used to hide symbols if defined (e.g. !defined __STRICT_ANSI__ or
!defined _POSIX_SOURCE), whereas the approach of glibc is that these macros
make symbols available when defined (e.g. defined _BSD_SOURCE, or as used
internally, #if __BSD_VISIBLE).  As much open-source software is written
with glibc in mind, this necessitated patching numerous packages just to
compile.

In particular, __STRICT_ANSI__ (which is defined by gcc -ansi or -std=c*)
was given too much importance.  This implementation limits the influence
of __STRICT_ANSI__ to controlling the default when no other feature test
macros are defined, and to the inclusion of <alloca.h> in <stdlib.h> as
documented.  These are the only places where __STRICT_ANSI__ should be
tested.

The following macros are now accepted: _ATFILE_SOURCE, _BSD_SOURCE,
_DEFAULT_SOURCE, _ISOC99_SOURCE, _ISOC11_SOURCE, _LARGEFILE_SOURCE,
_SVID_SOURCE, _XOPEN_SOURCE_EXTENDED.

The existing __*_VISIBLE internal macros have been kept mostly
compatible with the original BSD implementation, with some changes to
the criteria which controls them.  Several more macros in this style
have been added where needed for concision or accuracy.

Enabling C++11 or newer in the compiler also enables C99 and C11
functions.  Doing so should help move away from the need to define
_GNU_SOURCE in g++ for _GLIBCXX_USE_C99 support as on Linux:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51749

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:06:40 -05:00
Corinna Vinschen 6b97fabf1b Use __sputc_r inline code when building with gcc
Per the preceeding comment this inline code is disabled since 1993(!)
because of a bug in GCC at the time.  This is long gone and the equivalent
inline code is used in the BSDs for quite some time.  Enable this code for
newlib as well.

	* libc/include/stdio.h (__sputc_r): Enable GCC inline code.  Add
	handling for targets defining __SCLE.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-03-12 23:25:11 +01:00
Jeff Johnston b8a88d0b04 Fix _newlib_version.h logic to support building gcc with newlib. 2016-02-25 15:04:19 -05:00
Yaakov Selkowitz a9ab09dfa9 libm/complex: add clog10, clog10f
newlib/
	* libc/include/complex.h (clog10, clog10f): Declare.
	* libm/complex/Makefile.am (src): Add clog10.c.
	(fsrc): Add clog10f.c.
	(CHEWOUT_FILES): Add clog10.def.
	* libm/complex/Makefile.in: Regenerate.
	* libm/complex/clog10.c: New file.
	* libm/complex/clog10f.c: New file.
	* libm/complex/complex.tex: Add references to clog10 docs.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-02-22 14:43:41 -06:00