POSIX Compilance- #2966, GSoC Project 2019

[Vaibhav Gupta]

I did cloned RTEM source, newlib and rtems-libbsd.
Kept them in same folder so as to get easy with 'grep' and 'find'.

$ ls
newlib-cygwin  rtems  rtems-libbsd

$ grep -r grantpt ./
./newlib-cygwin/winsup/doc/posix.xml:    grantpt
./newlib-cygwin/winsup/doc/posix.xml:return -1 and set errno to ENOSYS.
<function>grantpt</function> and
./newlib-cygwin/winsup/cygwin/tty.cc:grantpt (int fd)
./newlib-cygwin/winsup/cygwin/libc/bsdlib.cc:      grantpt (master);
./newlib-cygwin/winsup/cygwin/common.din:grantpt NOSIGFE
./newlib-cygwin/winsup/cygwin/include/cygwin/stdlib.h:int grantpt (int);
./newlib-cygwin/winsup/CVSChangeLogs.old/cygwin/ChangeLog-1997:    *
cygwin.din: srandom, ptsname, grantpt, unlockpt - new exports.
./newlib-cygwin/winsup/CVSChangeLogs.old/cygwin/ChangeLog-1997:
(grantpt): new
./newlib-cygwin/winsup/CVSChangeLogs.old/cygwin/ChangeLog-2001:    * tty.cc
(grantpt): Fix definition.
./newlib-cygwin/winsup/CVSChangeLogs.old/cygwin/ChangeLog-2011:    * tty.cc
(grantpt): Check for valid fd.
./newlib-cygwin/newlib/ChangeLog-2015:    * libc/include/stdlib.h: add
ptsname, grantpt, unlockpt to cygwin
./rtems/testsuites/psxtests/Makefile.am:## lib_a_SOURCES +=
psxhdrs/stdlib/grantpt.c              See ticket #3645
./rtems/testsuites/psxtests/psxhdrs/stdlib/grantpt.c: *  @brief grantpt()
API Conformance Test
./rtems/testsuites/psxtests/psxhdrs/stdlib/grantpt.c:    return_value =
grantpt(fildes);
.
.
As I analyzed the output, I find no file that contains implementation of
'grantpt()', means ticket #3645(https://devel.rtems.org/ticket/3645) still
needs to be addressed.
But then how this method is used in rtems testsuites?. (refer last two
lines of output for grep command).
.
Am I doing something wrong? or I am missing something.

Thanks
Vaibhav Gupta











On Fri, Mar 8, 2019 at 5:31 AM Joel Sherrill <joel at rtems.org> wrote:

> I'm about to head home so not going to dig into each of those but I
> will point out for GSoC, we need to get you where you can answer
> these questions yourself.
>
> 1) clone the newlib (sourceware.org/newlib) source, RTEMS source, and
>     rtems-libbsd source. rtems-libbsd is the source for networking APIs.
> 2) use "grep -r" (recursive grep) and find (ex: find . -name "XXX") to
> help you
>     find implementations.
>
> For #3676, RTEMS supports aio but aio.h is one of only a handful of POSIX
> .h files in RTEMS and not in newlib. That's why the Google Code-In student
> couldn't find it in newlib. Just scanning the cpukit/include, I see 3
> POSIX .h
> files which could be moved to newlib. This is worth discussing on devel@
>
> For the rest, I think they are still open to be implemented. Now whether
> the
> method makes sense or not on RTEMS or requires more infrastructure than
> a simple method to be added is something to determine on a case by case
> basis.
>
> --joel
>
> On Thu, Mar 7, 2019 at 5:51 PM Vaibhav Gupta <vaibhavgupta40 at gmail.com>
> wrote:
>
>> It will be very helpful to know the current status of the following
>> tickets, and if I can choose sub-tasks from them, for GSoC project.
>>
>> .
>> #3676 - Add support for aio.h
>> .
>> #3642 - Add iswalnum(), iswalpha() ... (and 18 others) to <wchar.h> header
>> .
>> #3371 - Add dirfd() and fdopendir() methods in dirent.h
>> .
>> #3656 - Function prototypes for posix_fadvise() and posix_fallocate()
>> missing in <fcntl.h> header file
>> .
>> #3652- Add support for sys/resource.h method - getpriority
>> .
>> #3653 - Add support for sys/resource.h method - getrlimit
>> .
>> #3654 - Add support for sys/resource.h method - setpriority
>> .
>> #3655 - Add support for sys/resource.h method - setrlimit
>> .
>> #3644 - Add support for stdlib.h method - getsubopt
>> .
>> #3645 - Add support for stdlib.h method - grantpt
>> .
>> #3646 - Add support for stdlib.h method - posix_openpt
>> .
>> #3647 - Add support for stdlib.h method - ptsname
>> .
>> #3648 - Add support for stdlib.h method - unlockpt
>> .
>> #3643 - Add support for uchar.h header
>> .
>> #3633 - add getdelim() and getline() to stdio.h
>>
>>
>> Vaibhav Gupta
>>
>>
>>
>> On Thu, 7 Mar, 2019, 9:57 PM Vaibhav Gupta <vaibhavgupta40 at gmail.com
>> wrote:
>>
>>> Hello,
>>> I was exploring open projects and got very much intrested in the
>>> following ticket:
>>>
>>> #2966 - POSIX Compilance : https://devel.rtems.org/ticket/2966
>>> .
>>> As on the page, the project is divided into multiple sub-tasks. For many
>>> of them I am not able to find their current status and if enough work is
>>> left on them to be included as a GSoC project.
>>> .
>>> I would like to know the good combinations of sub-tasks which can
>>> compile into a good GSoC project under the "POSIX" ticket. I am very much
>>> interested to take this project. It would be great if someone mentors this
>>> project, I want to discuss further on this.
>>> .
>>> Also if there are new any new projects which are not mentioned on
>>> open-projects page? That can be taken up as GSoC project, I would love to
>>> explore them as well.
>>>
>>> Thankyou
>>> Vaibhav Gupta
>>>
>>
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