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Yaakov (Cygwin/X | 21 Feb 2012 23:44
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[PATCH] Add scandirat(3)

scandirat(3) was added in glibc-2.15[1] and has supposedly been proposed
for addition to POSIX.1[2].  Patch attached.

Yaakov

[1] http://sourceware.org/git/?p=glibc.git;a=blob_plain;f=NEWS
[2] http://article.gmane.org/gmane.linux.man/2419
Attachment (cygwin-scandirat.patch): text/x-patch, 4250 bytes
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Yaakov (Cygwin/X | 12 Feb 2012 23:04
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[PATCH] pthread.h: include <time.h>

POSIX states:
> Inclusion of the <pthread.h> header shall make symbols defined in the
> headers <sched.h> and <time.h> visible.

The reason being that some pthread functions take a clockid_t argument,
and the CLOCK_* symbolic names are therein defined.

Patch attached.

Yaakov
Attachment (pthread-include-time.patch): text/x-patch, 558 bytes
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Christian Franke | 8 Feb 2012 19:39
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[PATCH] Fix C++ compilation of wait(NULL)

This fixes the regression I introduced in sys/wait.h.

Sorry, and thanks for the bug report.

Christian
Attachment (cygwin-union_wait-4.patch): text/x-diff, 1976 bytes
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Yaakov (Cygwin/X | 24 Jan 2012 06:53
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[PATCH] ldd: support .oct and .so modules

Octave modules use the .oct extension, and several programs use .so for
modules even on Cygwin (e.g. Apache2, Mesa, OpenSSL, Ruby).  Currently,
running ldd(1) on any of these returns ENOEXEC.

The attached patch fixes ldd to treat these as DLLs and show their
runtime dependencies.

Yaakov
Attachment (utils-ldd-so-oct.patch): text/x-patch, 950 bytes
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Yaakov (Cygwin/X | 13 Jan 2012 10:26
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[PATCH] doc: document printf %m

New feature just added to newlib.  Patch for winsup/doc attached.

Yaakov
Attachment (doc-printf-m.patch): text/x-patch, 881 bytes
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Yaakov (Cygwin/X | 12 Jan 2012 12:28
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[PATCH] doc: tgmath.h

New header just committed to newlib.  Patch attached.

Yaakov
Attachment (doc-tgmath.patch): text/x-patch, 721 bytes
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Yaakov (Cygwin/X | 1 Jan 2012 19:59
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[PATCH] Add pthread_sigqueue(3)

This patchset adds pthread_sigqueue(3), a GNU extension:

http://www.kernel.org/doc/man-pages/online/pages/man3/pthread_sigqueue.3.html

The implementation is based on the existing sigqueue(2) and
pthread_kill(3) code.

Patches for winsup/cygwin and winsup/doc attached.

Yaakov
Attachment (cygwin-pthread_sigqueue.patch): text/x-patch, 3540 bytes
Attachment (doc-pthread_sigqueue.patch): text/x-patch, 735 bytes
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Yaakov (Cygwin/X | 1 Jan 2012 03:45
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[PATCH] Add get_current_dir_name(3)

This patchset adds get_current_dir_name(3), a GNU extension:

http://www.gnu.org/software/libc/manual/html_node/Working-Directory.html
http://www.kernel.org/doc/man-pages/online/pages/man3/getcwd.3.html

The test code will show the difference between get_current_dir_name()
and getcwd(NULL, 0) when you cd into a directory via a symlink:

$ gcc -Wall -o test-get_current_dir_name.exe test-get_current_dir_name.c
$ mkdir /tmp/real
$ ln -s real /tmp/symlink
$ cd /tmp/symlink
$ /path/to/test-get_current_dir_name.exe
                  PWD: /tmp/symlink
               getcwd: /tmp/real
 get_current_dir_name: /tmp/symlink

: now try spoofing PWD
$ PWD=$HOME /path/to/test-get_current_dir_name.exe
                  PWD: /home/Yaakov
               getcwd: /tmp/real
 get_current_dir_name: /tmp/real

Patches for newlib, winsup/cygwin, and winsup/doc, plus the STC,
attached.

Yaakov
Attachment (cygwin-get_current_dir_name.patch): text/x-patch, 2936 bytes
(Continue reading)

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Yaakov (Cygwin/X | 30 Dec 2011 07:44
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[PATCH] Add getpt(3)

getpt(3) is a GNU extension which predates posix_openpt(3):

http://www.kernel.org/doc/man-pages/online/pages/man3/getpt.3.html

The code itself is quite simple, but let me preempt some questions:

1) Yes, portable code should use posix_openpt(3).  Unfortunately not all
code is written with portability in mind.

2) A macro is insufficient as it will not be discovered by an Autoconf
AC_CHECK_FUNC or CMake CHECK_FUNCTION_EXISTS test (which is exactly how
I came across this issue in the first place).

Patches for winsup/cygwin and winsup/doc attached.

Yaakov
Attachment (cygwin-getpt.patch): text/x-patch, 3197 bytes
Attachment (doc-getpt.patch): text/x-patch, 752 bytes
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Yaakov (Cygwin/X | 30 Dec 2011 07:25
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[PATCH] Fix cancellation points list

pthread_rwlock_timedrdlock and pthread_rwlock_timedwrlock aren't
implemented yet.  Patch attached.

Yaakov
Attachment (cygwin-cancellation-points.patch): text/x-patch, 791 bytes
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Dave Korn | 12 Dec 2011 23:57
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[patch,1.7.10] clock_setres returns zero


    Hi folks,

  I actually noticed this in 1.7.9, but looking at the source in CVS I can see
it's still present in 1.7.10.  Here's the STC:

> $ cat clockres.c

#include <stdio.h>
#include <time.h>
#include <errno.h>

int main (int argc, const char **argv)
{
  struct timespec ts;
  if (clock_getres (CLOCK_MONOTONIC, &ts) < 0)
  {
    fprintf (stderr, "Bad: %d\n", errno);
    return -1;
  }
  printf ("%ld sec, %ld nanos\n", ts.tv_sec, ts.tv_nsec);
  return 0;
}

> $ gcc-4 clockres.c -o clockres -W -Wall -Wextra
> clockres.c: In function 'main':
> clockres.c:6:15: warning: unused parameter 'argc'
> clockres.c:6:34: warning: unused parameter 'argv'
> 
> $ ./clockres.exe
(Continue reading)

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