Richard,
Download the updated debugger plugin from
ftp://palm:[EMAIL PROTECTED]. This one fixes the 'hd 0' problem so
that it displays the heap without the error.
Rgds,
Jun-Kiat Lam
Metrowerks Technical Support
At 09:52 AM 8/24/2000 +0100, Richard Sewell wrote:
>At 16:52 23/08/00 -0700, you wrote:
>>There aren't APIs to walk the heap. And the format of the heap has changed
>>several times, and can be expected to do so again, but it wouldn't be too
>>hard to figure it out for some given OS version...
>
>OK - thanks - I could really use some clues, though! How do I find the
>start of the heap ?
>
>
>>However, I'd imagine it would be much easier just to use PalmDebugger and
>>the "hd 0" command; it walks the heap and knows about all the different
>>versions, plus it tags most of the system's allocations so that you know
>>what they all are.
>
>It seems to be broken:
>
>hd 0
>Displaying Heap ID: 0000, mapped to 00001800
>
> req act resType/ #resID/
>
> start handle localID size size lck own flags type index attr
> ctg uniqueID name
>
>----------------------------------------------------------------------------
>----------------
>
>#ERROR: Invalid flags field in heap header
>
>#ERROR: Invalid size field in heap header
>
>
>but perhaps there's a way round this ?
>
>The advantage of heapwalking within the app (as opposed to just viewing
>the heap with the debugger) is that it makes it easy to write code to
>compare heap states.
>
>
>>PalmDebugger is a quite underappreciated tool, from what I see... and it
>>has been available on Windows for some time now, and in my experience is
>>extremely stable there. Use it with Pose and do some great low-level
>>debugging.
>
>It is a bit hard to find. When I first found references to it in the docs,
>I spent a long time looking for a way to start the thing, and I never did
>find it on my own - someone told me the secret. Maybe I just missed
>something obvious....
>
>Richard
>
>
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