Error while building the rtems-libbsd

[Utkarsh Rai]

My host system has an x-86_64  architecture with ubuntu-18.04 running on
top of it, I have a python2 installed.
Interestingly enough, when I clean up the libbsd directory and try to build
as a super-user, I have two observations:-
1. The build fails with the following error message:-
[1/4] Creating
///h/o/m/e///u/r/1/0///s/a/n/d/b/o/x///r/t/e/m/s/-/l/i/b/b/s/d///b/u/i/l/d///a/r/m/-/r/t/e/m/s/5/-/b/e/a/g/l/e/b/o/n/e/b/l/a/c/k/-/d/e/f/a/u/l/t/build-include/rtems/bsd/modules.h
[2/4] Compiling rtemsbsd/rtems/generate_kvm_symbols
[3/4] Compiling testsuite/include/rtems/bsd/test/network-config.h.in
/bin/sh: 1:
.//home/ur10/sandbox/rtems-libbsd/rtemsbsd/rtems/generate_kvm_symbols: not
found

Now I have checked, and the file in question is present at its location.

2. The traceback of the last calls is something like this:-
  File
"/home/ur10/sandbox/rtems-libbsd/.waf-2.0.13-4c5a17779813574907c253ab5418388d/waflib/Build.py",
line 100, in execute_build
    self.compile()
  File
"/home/ur10/sandbox/rtems-libbsd/.waf-2.0.13-4c5a17779813574907c253ab5418388d/waflib/Build.py",
line 174, in compile
    self.store()
  File
"/home/ur10/sandbox/rtems-libbsd/.waf-2.0.13-4c5a17779813574907c253ab5418388d/waflib/Build.py",
line 153, in store
    Utils.writef(db+'.tmp',x,m='wb')
  File
"/home/ur10/sandbox/rtems-libbsd/.waf-2.0.13-4c5a17779813574907c253ab5418388d/waflib/Utils.py",
line 155, in writef
    with open(fname,m)as f:
IOError: [Errno 2] No such file or directory:
u'/home/ur10/sandbox/rtems-libbsd/build/arm-rtems5-beagleboneblack-default/.wafpickle-linux2-34017264-20.tmp'

If I am correct,  this is a python exception for invalid file handling.
Since I have already removed the  'build'  directory, I suppose the call
should be 'w+' or 'wb+' but this does not seem to be the case. (I am going
out on a limb with this assumption, I may be wrong !)

It would be very helpful if you could provide your views on the problem and
as to how I should proceed to resolve this.


On Mon, Dec 30, 2019 at 7:19 PM Christian Mauderer <list at c-mauderer.de>
wrote:

> On 28/12/2019 18:43, Utkarsh Rai wrote:
> > Hi,
> > While building the rtems-libbsd as described here
> > <
> https://devel.rtems.org/browser/rtems-libbsd/README.waf?rev=b83012a9f9f1551d9d223c3126d0f43aba79db62
> > I
> > was able to successfully configure the waf file as:-
> > waf configure
> > --prefix="/home/ur10/sandbox/rtems/5"
> > --rtems-bsps=arm/beagleboneblack
> > --buildset=buildset/default.ini
> > But the build fails on the "waf" instruction with the error -  "Could
> > not create the directory ///h".
> > My path for the build is  PATH="~/sandbox/rtems/bin:$PATH", with the
> > tools and the rtems-libbsd in the sandbox directory.
> > It would be very kind of you if someone could point out as to what is it
> > that I am doing wrong.
> > Thank You, Regards.
>
> Hello Utkarsh Rai,
>
> I now have seen that bug about two or three times on the list. But I've
> never been able to reproduce it. What host system are you using? Do you
> have a python2 or a python3 as default python?
>
> Sometimes it works to clean up the libbsd directory. Remove the "build"
> directory and the ".waf2..." or ".waf3..." directory. Also remove any
> "__pycache__" directories.
>
> From your call it seems that you use waf from your host system. Can you
> try to use the waf version delivered with libbsd instead (using "./waf
> configure ...")?
>
> Best regards
>
> Christian
>
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