[Core] [RFA/DWARF2] Handle nested subprograms in CU pc bound calculation
jonas.maebe at elis.ugent.be
Wed Oct 1 10:30:07 CEST 2008
On 01 Oct 2008, at 09:42, Pierre Muller wrote:
> De : Joel Brobecker [mailto:brobecker at adacore.com]
>> This is only just for comments, as there is still one question open:
>> For Ada, we store the symbols for nested subprograms in the global
>> context. This allows us to break on these functions even when these
>> functions are not defined in the current context. Do we want to do
>> same with Pascal?
> I believe that, at least with the Free Pascal compiler and
> stabs debugging format (which is the format I worked on), all
> nested subprograms where also in the global context and thus
> I would not mind to do the same for pascal language.
> I must confess that I stopped working for the Free Pascal compiler
> more or less when the dwarf debugging format was added, and I almost
> anything about that format...
> The only thing that I can tell, is that last time I checked
> Free Pascal (version 2.2.0 windows 32bit target) with -gw (dwarf
> I still got lots of errors while trying to load the compiler inside
> gdb :(
At least under Mac OS X, FPC with dwarf works fairly well. I believe
it works ok under Linux too. I don't know about win32.
> I must confess that I don't even know if the full specification
> would work for pascal in case the same name is used globally and as
> a nested procedure (I do know that you are allowed
> to reuse a name defined globally as a local procedure, function or
> inside a function, but I don't know if the
> (gdb) break GlobalFuntion.LocalFunction
> would work)
It doesn't work with FPC and stabs under 6.6-45.fc8rh at least
(neither when using only upper case nor when using the casing as it
appears in the source code). Was support for this only added in a
later gdb version?
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