Re: [LTP] Help Need for Ar01 Test Case

[Subrata M. <tos...@gm...>]

On Mon, Mar 16, 2009 at 9:31 PM, CAI Qian <ca...@cc...> wrote:

> From: CAI Qian <ca...@cc...>
> Subject: Help Need for Ar01 Test Case
> Date: Mon, 16 Mar 2009 17:32:17 +0800 (CST)
>
> > Hi Robbie,
> >
>
> I got delevery failure for Robbie's email address,
>
>  Your message
>
>    Subject: Help Need for Ar01 Test Case
>
>  was not delivered to:
>
>    ro...@us...
>
>  because:
>
>    User robbiew (ro...@us...) not listed in Domino Directory
>
> Does anybody happen to know his up-to-date email?


He is here now :-)

Regards--
Subrata


>
>
> CAI Qian
>
> > I may need your help to understand ar01 test case under
> > testcases/commands/ade/ar/.
> >
> > The following test code may fail, and I don't understand what it does,
> >
> >  # The -s causes regeneration of symbol table even if a symbol table
> >    exists.
> >
> >  # CODE
> >
> >  rm -rf $TCtmp/lib.a;cd $TCdat
> >  ar -cr $TCtmp/lib.a file1.o
> >  crtest
> >  size1=`ls -s $TCtmp/lib.a|(read a b; echo $a)`
> >  strip $TCtmp/lib.a 2>&1 1>/dev/null
> >  ar -ts $TCtmp/lib.a 2>&1 1>/dev/null
> >  size2=`ls -s $TCtmp/lib.a|(read a b; echo $a)`
> >
> >  if [ $size1 -eq $size2 ]
> >
> >  then
> >      echo "-)17"
> >  else
> >      TCRESULT=17
> >      echo "FAIL - ar with -does not regenerate symbol table"
> >
> > I have two questions. The first one is, why use "t" and "s" options
> > together?
> >
> >  ar -ts $TCtmp/lib.a 2>&1 1>/dev/null
> >
> > From the manpage,
> >
> >  t   Display a table listing the contents of archive, or those of the
> >      files listed in member... that are present in the archive.
> >      Normally only the member name is shown; if you also want to see the
> >      modes (permissions), timestamp, owner, group, and size, you can
> >      request that by also specifying the v modifier.
> >
> >  s   Write an object-file index into the archive, or update an existing
> >      one, even if no other change is made to the archive.  You may use
> >      this modifier flag either with any operation, or alone.  Running ar
> >      s on an archive is equivalent to running ranlib on it.
> >
> > I can't see how they are related. Do you mean "ar -s"?
> >
> > The second one is, this piece of test code fails for me, and it works
> > sometimes probably just by dumb luck. It can be explained by the
> > following,
> >
> > First, we create an archieve file lib.a by including file1.o.
> > # ar -cr lib.a file1.o
> >
> > Second, we get lib.a's block size.
> > # # ls -s lib.a
> > 8 lib.a
> >
> > # nm -s lib.a
> >
> > Archive index:
> > main in file1.o
> >
> > file1.o:
> > 0000000000000000 r .LC0
> > 0000000000000000 T main
> >                  U puts
> >
> >
> > Then, we strip its symbols.
> > # strip lib.a
> >
> > # ls -s lib.a
> > 8 lib.a
> >
> > # nm -s lib.a
> >
> > file1.o:
> > nm: file1.o: no symbols
> >
> >
> > Next, use "ar -s" to generate symbol index?
> > # ar -s lib.a
> >
> > # ls -s lib.a
> > 8 lib.a
> >
> > # nm -s lib.a
> >
> > file1.o:
> > nm: file1.o: no symbols
> >
> >
> > Finally, we get lib.a's new block size, and compare with the old one. If
> > they are same, the test passes. Otherwise, fails.
> >
> > As you can from the above, there are two things does not make sense to
> > me,
> >
> > * the lib.a's block size is the same before and after stripping the
> >   symbols.
> >
> > * "ar -s" seems have not effect indicating by "nm -s" and "ls -s".
> >
> > Any pointer?
> >
> > CAI Qian
>
>
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-- 
Regards & Thanks--
Subrata