musl - Re: cluts test suite with musl

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Date: Wed, 24 Apr 2013 15:26:57 +0300
From: Timerlan Moldobaev <moldobaev@...il.com>
To: musl@...ts.openwall.com
Subject: Re: cluts test suite with musl

Thanks !

I applied the patch. Still have some tests failing.

For instance tests/buf fails with the following error message:

iconv(&<"abcd">, &<4>, &s, &<3>) caused a SIGSEGV!

I am not sure but  it seems that iconv()  that is called from wrap_iconv()
should return  an error return value and set an errno value.
At least to my understanding  that the way the test is written.
For musl implementation of iconv()  returns 0 and sets no errno.

While in the case of standard Linux implementation, errno = E2BIG and -1
returned ( error return value) .

For the case buf linked dynamically against the standard libc.so library:

 ldd tests/buf
        libpthread.so.0 => /lib64/libpthread.so.0 (0x00000030d1000000)
        librt.so.1 => /lib64/librt.so.1 (0x00000030d4400000)
        libm.so.6 => /lib64/libm.so.6 (0x00000030d0800000)
        libc.so.6 => /lib64/libc.so.6 (0x00000030d0400000)
        /lib64/ld-linux-x86-64.so.2 (0x00000030cf400000)

> uname -a
Linux lnxbdc96 2.6.18-164.11.1.el5 #1 SMP Wed Jan 6 13:26:04 EST 2010
x86_64 x86_64 x86_64 GNU/Linux

Can you please look into this ?

Thanks.



On Tue, Apr 23, 2013 at 6:47 PM, Rich Felker <dalias@...ifal.cx> wrote:

> On Tue, Apr 23, 2013 at 11:31:27AM -0400, Rich Felker wrote:
> > On Tue, Apr 23, 2013 at 06:17:15PM +0300, Timerlan Moldobaev wrote:
> > > Can you please specify what  tests within cluts  should  work
> correctly ?
> > > There are chances that in my specific environment some musl issues
> might
> > > pop up even when running cluts partly.
> > > I can assist in debugging such issues (as it was for testsuite case).
> >
> > Yes, I'm actually working on a patch right now that disables the
> > incorrect tests and fixes up some other issues.
>
> Here's the patch. I've just disabled the EINTR test module entirely
> since it's full of wrong code including broken attempts at
> synchronization based on a volatile variable, and attempts to unlock a
> lock that's already unlocked.
>
> The other main issue was invalid numeric tests.
>
> Note that the setuid race test will not work without root, and I don't
> think it's reliable anyway. There's an alternate test for this issue
> on the glibc bug tracker:
>
> http://sourceware.org/bugzilla/show_bug.cgi?id=13347
>
> Rich
>

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