Wireshark · Wireshark-dev: Re: [Wireshark-dev] Wireshark won't compile on PPC64 boxes

[didier <dgautheron@xxxxxxxx>]

Le mercredi 27 janvier 2010 à 23:12 +0200, Gerasimos Dimitriadis a
écrit :
> Almost all of the string constants are used for initializing data
> structures, so an extra problem I think is that the contents of a
> strings array cannot be directly used for initializing e.g. the
> hf_register_info array, since constants are needed for that. A
> solution for that would be to initialize the hf_register_info array
> with all string pointers set to NULL like this:
>     { &hf_rrc_DL_DCCH_Message_PDU,
>       { NULL, NULL,
>         FT_NONE, BASE_NONE, NULL, 0,
>         NULL, HFILL }},
> ....
> 
> and then before calling proto_register_field_array set the correct
> pointers in runtime, from arrays where all the strings have been
> collected:
> 
> for(i = 0; i < array_length(hf); i++)
> {
>    hfC.hfinfo.name = bigNameArray[i];
>    hf[i].hfinfo.abbrev = bigAbbrevArray[i];
>    hf[i].hfinfo.blurb = bigBlurbArray[i];
> }
> 
> Do you think that such a thing could solve the problem? I will try to
> create a script for automating this process and see what comes from
> it.
No I don't think it could. I replaced the whole 
static hf_register_info hf[]
with
extern hf_register_info hf[];

and it still didn't compile with gcc -m64 (4.4.1)

The problem or one problem is all these:

const per_sequence_t foo[] = {
...
};

int dissect_ber_xxx() {
  offset = dissect_per_sequence(tvb, ..., foo);
  return offset;
}

const per_sequence_t bar[] = {
...
};

int dissect_ber_yyy() {
  offset = dissect_per_sequence(tvb, ..., bar);
  return offset;
}

-----------------

As suggested using:
const per_sequence_t foo[] = {
...
};

const per_sequence_t bar[] = {
...
};

const per_sequence_t *foobar[] = {    
 &foo[0],
 &bar[0],
};

int dissect_ber_xxx() {
  offset = dissect_per_sequence(tvb, ..., foobar[0]);
  return offset;
}

int dissect_ber_yyy() {
  offset = dissect_per_sequence(tvb, ..., foobar[1]);
  return offset;
}

Reduce the number of toc entries but it may not be enough and it needs
some work in asn2wrs.py. 

IMO not compiling this protocol or using a stub for ppc64 is an easier  
option :)

Note:
I don't have a full powerpc 64bits setup thus I can only compile not
link 64 bits code.

Didier