[Vm-dev] codeGenerator vs cogitCodeGenerator

[Eliot Miranda]

Hi Guille,

    I use VMMaker class>>activeVMMakerClassFor: to create the VMMaker, and
hence the code generator, using 'Cross' as the platform name, which yields
a CrossPlatformVMMaker.  Look at the methods in VMMaker class's
configurations protocol.  IMO, this is the right way to generate sources.
 e.g.

generateSqueakCogVM
^VMMaker
generate: CoInterpreter
and: StackToRegisterMappingCogit
with: #( MULTIPLEBYTECODESETS false
NewspeakVM false)
to: (FileDirectory default pathFromURI: 'oscogvm/src')
platformDir: (FileDirectory default pathFromURI: 'oscogvm/platforms')
including:#( ADPCMCodecPlugin AsynchFilePlugin BalloonEnginePlugin
B3DAcceleratorPlugin
BMPReadWriterPlugin BitBltSimulation BochsIA32Plugin GdbARMPlugin
CroquetPlugin DSAPlugin
DeflatePlugin DropPlugin FT2Plugin FFTPlugin FileCopyPlugin FilePlugin
FloatArrayPlugin
FloatMathPlugin GeniePlugin HostWindowPlugin IA32ABIPlugin
InternetConfigPlugin
JPEGReadWriter2Plugin JPEGReaderPlugin JoystickTabletPlugin
KlattSynthesizerPlugin
LargeIntegersPlugin LocalePlugin MIDIPlugin MacMenubarPlugin Matrix2x3Plugin
MiscPrimitivePlugin Mpeg3Plugin QuicktimePlugin RePlugin SecurityPlugin
SerialPlugin
SocketPlugin SoundCodecPlugin SoundGenerationPlugin SoundPlugin
ThreadedIA32FFIPlugin
StarSqueakPlugin UUIDPlugin UnixOSProcessPlugin Win32OSProcessPlugin
VMProfileMacSupportPlugin)

and follow the send chain through to activeVMMakerClassFor:


On Tue, Nov 27, 2012 at 5:18 AM, Guillermo Polito <guillermopolito at gmail.com
> wrote:

>
> Hi all!!
>
> I was looking at the VMMaker sources and noticed that by default when
> generating my vm, the interpreter and cogit files are generated with
> different CodeGenerators:
>
> CrossPlatformVMMaker>>createCodeGenerator
> "Set up a CCodeGenerator for this VMMaker - A cross platform tree leaves
> it up to the makefiles to decide whether to use the global struct or not."
>  ^CCodeGeneratorGlobalStructure new initialize;
> globalStructDefined: true;
>  structDefDefine: 'USE_GLOBAL_STRUCT';
> logger: logger;
> yourself
>
> VMMaker>>createCogitCodeGenerator
> ^CCodeGenerator new initialize
> logger: logger;
>  yourself
>
>
> Why should they use different code generators? Shouldn't they by default
> use the same?
>
> Tx,
> Guille
>
>


-- 
best,
Eliot
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