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Re: Linkage of GPLed GCC to Closed Source via XML or Perl
- From: Diego Novillo <dnovillo at acm dot org>
- To: Bryce McKinlay <bryce at waitaki dot otago dot ac dot nz>
- Cc: James Michael DuPont <mdupont777 at yahoo dot com>, Joe Buck <Joe dot Buck at synopsys dot com>, gcc at gnu dot org
- Date: Sun, 3 Mar 2002 21:58:38 -0500
- Subject: Re: Linkage of GPLed GCC to Closed Source via XML or Perl
- References: <firstname.lastname@example.org> <3C82DD1F.email@example.com>
On Mon, 04 Mar 2002, Bryce McKinlay wrote:
> James Michael DuPont wrote:
> >Besides, Noone else is really using it as far as I
> >know, and the only project that I have compiled are
> >the c,c++ and java compilers.
> >I have a postgres database of 2gb with all the asts
> >from the stage2 bootstrap on my computer and am
> >writing cool queries to figure out how the tree nodes
> >are used.
> Technical question: does your patched compiler dump out any AST info
> that isn't already dumped by -fdump-trees/tree-dump.c? ie is there more
> info there, or is the intent just to generate XML output so that it is
> more parseable by other tools?
> I always thought it would be a cool debugging tool to have some sort of
> gui for introspection of the AST. "p debug_tree(t)" in GDB does get
> boring after a while...
If you're looking for more interesting ways of examining the
ASTs, the ast-optimizer-branch is starting to show a few:
- Unparsing capabilities (could potentially be used as a
- Call graphs.
- Metrics (control flow complexity and logical complexity).