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Re: Dwarf information about a symbol
On Wed, Oct 15, 2003 at 01:26:57AM -0700, ankit thukral wrote:
> hi all,
> this is regarding the dwarf information regarding
> a variable (which is in struct symbol in the following
> field : symbol.aux_value.loc.baton.data ).can this
> information change over different stages in the
> process? for instance,if a variable ,which is in a
> register during early stages of the program,ceases to
> be in the register (due to less usage) and is stored
> in memory,then the symbol Dwarf information should
> change from DW_OP_regx to
> DW_OP_fbreg.
> i am not very sure whether my knowledge about the
> compilation process (gcc , of course) is correct to
> this end.
To add to Keith's answer:
- loc.baton.data will _not_ change. loc.baton.data may point to a
list of different locations, however.
- current gcc only occasionally generates location lists. It may be
3.5 before they're really available.
--
Daniel Jacobowitz
MontaVista Software Debian GNU/Linux Developer