Re: [PATCH/RFC] faster language identification

[Jim Blandy <jimb@redhat.com>]

Daniel Jacobowitz <drow@mvista.com> writes:
> > > > I was thinking of what Daniel proposed; a psymtab_language() function. But,
> > > > even in the DWARF case, consider this:
> > > > 
> > > > % gcc -Wa,-gdwarf2 bar.s foo.c -o foo
> > > > 
> > > > Now, the language should be set to 'asm'? This is what you'll get if you try
> > > > to parse the .debug_info section. Currently, gdb in the above case sets it
> > > > to 'c'.
> > > > 
> > > > Also, there is the case that you enable DWARF in both as and gcc, but I think
> > > > this shouldn't be allowed by gcc.
> > > 
> > > Well, it _should_ be asm.  We don't have line number information for
> > > the .c source.  IMHO.
> > > 
> > > (Also IMHO, the user just shouldn't do that...)
> > 
> > Shouldn't do what?  Compile assembly with debug info?  Link object
> > modules with a mix of debuggingness?  I don't see what's wrong...
> 
> No, compile C with assembly debug info, which that command line also
> does.  That's the one that'll confuse us.

Ooooh.  I see.  Yep.