[fpc-pascal] reading PPU files

[Michael Van Canneyt]

On Wed, 25 Jun 2008, Peter Vreman wrote:

> Florian Klaempfl wrote:
> > Mattias Gaertner schrieb:
> > > On Tue, 24 Jun 2008 23:14:34 +0200
> > > Florian Klaempfl <florian at freepascal.org> wrote:
> > >
> > > > Mattias Gaertner schrieb:
> > > > > I want to read ppu files like the ppudump tool.
> > > > > ppudump uses the unit compiler/ppu.pp, but ppu.ppu is not
> > > > > installed by default. At least not on debian.
> > > > >
> > > > > Should I make a copy of this unit?
> > > > No ;)
> > > >
> > > > > Will this work for the various compilers (e.g. compiling the tool
> > > > > with 2.2.3 and reading 2.2.x and 2.3.x ppu files)?
> > > > Sometimes it works, sometimes not. ppudump is also often out of date.
> > > > What exactly do you want to achive?
> > >
> > > Reading ppu files with the codetools. First getting information about
> > > unit dependencies and initialization/finalization sections. Later some
> > > type information.
> > 
> > Well, if you really dare to do so, the best is probably copying from time to
> > time the necessary fpc sources.
> 
> The ppu unit from the compiler and ppudump has become too much dependent on
> other units of the compiler that i don't think it is recommended to be used by
> other projects. The current dependencies are below:
> 
> Compiling ppudump.pp
> Compiling /home/peter/fpc/compiler/constexp.pas
> Compiling /home/peter/fpc/compiler/ppu.pas
> Compiling /home/peter/fpc/compiler/globtype.pas
> Compiling /home/peter/fpc/compiler/systems.pas
> Compiling /home/peter/fpc/compiler/cutils.pas
> Compiling /home/peter/fpc/compiler/fpccrc.pas
> Compiling /home/peter/fpc/compiler/cclasses.pas
> Compiling /home/peter/fpc/compiler/cstreams.pas
> Compiling /home/peter/fpc/compiler/i386/cpuinfo.pas
> Compiling /home/peter/fpc/compiler/version.pas
> 
> It might be better to write a clean PPU reader using streams. The PPU format
> is stable and TLV based so multiple ppu-versions can be supported. For the
> compiler and ppudump this is not a requirement, but for lazarus it is needed
> especially if it wants to use type information.

I would also recommend this way, and think that if it is implemented, we
make a FPC package from this.

Michael.