Re: Debug information for types questions

[Daniel Berlin <dan at cgsoftware dot com>]

Neil Booth <neil@daikokuya.demon.co.uk> writes:

> In toplev.c, we have rest_of_type_compilation output type info for
> dbx, xcoff, sdb and dwarf2.  This appears to be restricted to enum,
> struct and union types.

Yup.

> 
> Where is dwarf?
No clue.

> 
> Just above, in rest_of_decl_compilation, we have debug output for
> TYPE_DECLs for dbx, xcoff and sdb.
Yup.

> 
> Why is there no overlap with rest_of_type_compilation? 
Because it was badly designed?
No idea.
>  Where are
> dwarf / dwarf2 handled?

Well, for the most part, gen_decl_die in dwarf2out.c for DWARF2.
In reality, it'll output the types as needed (since most things go
through gen_decl_die, it's the main place the type outputting happens)
Global typedefs and whatnot happen in the global decl loop.


>  In the global_decl loop?
> 
> Because of the above, I'm not clear on exactly how to rationalise this
> into using a type_decl hook.  It would be nice to have all the debug
> info treated in the same way at the same time.  Is there a fundamental
> reason that is not possible here?

> 
> Neil.

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