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Re: Did I find an error in the current binutils or what???
On Wed, Nov 07, 2001 at 10:56:00AM -0500, Charles Wilson wrote:
> Corinna Vinschen wrote:
>
>
> >>Except that the cygwin1.dll/libcygwin.a that you are linking against does
> >>not have the requisite auto-import support thunks (_nm__*). Perhaps this
> >>cygwin was compiled using a (very) old binutils? pre-20010802 ?
> >>
> >
> > Yes. It has been cross-compiled on a Linux box. The binutils are...
> > uhm... compiled on 2001-07-12 so they are definitely pre-20010802.
> > Somehow I don't understand how that stuff is supposed to work. I'm
> > not a binutils expert...
>
>
> Okay, then I'm gonna assume that you are linking against a kernel that you
> built yourself, and not the "official" cygwin kernel that cgf built
> (otherwise, the following applies to him):
>
> You ought rebuild your cross-binutils from the binutils-20011002-1-src as
> distributed from the cygwin mirrors.
>
> Recent binutils (post-20010802) add special autoimport-support thunks to
> the dll's that they create. These are used to create a lookup table for
> the variable exports, by fooling the windows runtime loader. (I don't
> understand the whole thing, but it's a neat concept.)
>
> Anyway, the *DLL* as well as your client app need to be built using a
> recent binutils, in order for the auto-import thing to work properly.
Thanks, that helped. I have build and installed binutils-20011002-1
for cross-building cygwin binaries on my Linux box. Now the message
Warning: resolving ___progname by linking to __imp____progname (auto-import)
is written to stderr and the link stage is successfully completed.
> Of course, with the cygwin1.dll, auto-import shouldn't be necessary.
> __progname *ought* to be declared (with appropriate __declspec() markings)
> in some header file somewhere, so that's a cygwin bug.
Which is kinda mess since there's even no header on Linux which
defines __progname. Is there _any_ standard on where to define
__progname?
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
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Red Hat, Inc.