Mac Forum / Programming / CodeWarrior / February 2004

Hi,

I'm porting a MacOS 9 app to OS X (10.3 Panther)
using Carbon within CW 8.3.
For now I'm building a Macintosh PowerPC target.
It compiles fine with a few warnings but when I
try to debug it it crashes with an access fault
exception when calling Power Plant constructors
before entering the main function (the arrow
represents the position of the current function
call in the debugger (i.e. stack):

=> CTextDocApp theApp;
...

int main(int argc, char** argv)
{
    ...
    theApp.Run();
    ...
    return 0;
}

The constructor of theApp (after usual calls:
__start
__sinit
__sinit__:CTextDocApp_cp)

  CTextDocApp::CTextDocApp()
=> {
     ...

calls

  LDocApplication::LDocApplication()
=> {
  }

which calls

  LApplication::LApplication()
=> {
     ...

which in turn calls

  LEventDispatcher::LEventDispatcher()
=> {
     ...

that leads to access fault exception with:

Variables: All            Value        Location
__________________________________________________________
this                0x000D74AE    @R31
    $LAttachable        0x0000000D    0x000D74AE
        mAttachments    0x0977B3A8    0x00000011
    mSaveDispatcher        0x00000000    0x000D74B6
    mMouseRgn        0x000D74BA    0x000D74BA
        mRegionH    0x00000000    0x000D74BA
        mIsOwner    false        0x000D74BE
__________________________________________________________
LEventDispatcher::sCurrentDispatcher
                0x00000000    0x000D7BF0

The value of $LAttachable seems weird, don't you think?

Does anyone have encountered such behavior, is there
something I am missing?
I carbonized (rebuilt for Macintosh PowerPC) FeaturesLib
(which declares LEventDispatcher) and included it in my
target. Perhaps it comes from this rebuild?

Thanks in advance for your help :-)