nm for .exe extensions?

[Corinna Vinschen]

On Jun  7 08:43, Bill Smith wrote:
> Warren Young-2 wrote
> > On May 24, 2016, at 6:43 AM, Benjamin Cao <
> 
> > becao@
> 
> > > wrote:
> >> 
> >> The executable, when run with nm in Cygwin, results in a "no symbols"
> >> result, whereas it generates a symbol table in unix.
> > 
> > That’s not what I see here.  Given hello.c containing a “Hello, world!”
> > program:
> > 
> >   $ make hello
> >   cc     hello.c   -o hello
> >   $ nm hello.exe | wc -l
> >   389
> > 
> > If I strip the exe, I get “No symbols,” as expected.  There’s no reason a
> > finished executable should have much in the way of exported symbols
> > without debug info, since it is self-contained.  You would only expect to
> > get useful output from nm on a stripped binary if it’s an object file or a
> > DLL.
> 
> Hi, I'm picking this issue up from my colleague, Ben Cao.  We're using
> Visual Studio C++ to compile the executables/objects.  Is the issue that
> Visual Studio places the information in the .pdb file?  That's why nm
> doesn't display any info on an *.exe ?

PDB is an undocumented and potentially patent-encumbered format, that's
why the binutils tools can't read or write it.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat
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