[Vm-dev] InterpreterProxy->getStackPointer is null
Igor Stasenko
siguctua at gmail.com
Wed Aug 3 16:17:59 UTC 2011
I just found that a pointer to this function is null.
Means that if you will use
interpreterProxy->getStackPointer()
in plugin, you will crash VM.
Could it be that it declared twice in sqVirtualMachine.c ?
...
sqInt getStackPointer(void); /* Newsqueak FFI */
void *startOfAlienData(sqInt);
usqInt sizeOfAlienData(sqInt);
sqInt signalNoResume(sqInt);
#if VM_PROXY_MINOR > 8
sqInt getStackPointer(void); /* Alien FFI */
...
(at least this code looks suspicious)
and why at assignment point it does conversions?
VM->getStackPointer = (sqInt *(*)(void))getStackPointer;
while rest of functions don't require them?
In header it declared as:
sqInt *(*getStackPointer)(void);
NBInterpreterProxy majorVersion 1
NBInterpreterProxy minorVersion 12
(means that it should be there :)
--
Best regards,
Igor Stasenko AKA sig.
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