[Vm-dev] SystemTracing: SystemTracing-dtl.23.mcz

stephane ducasse stephane.ducasse at gmail.com
Fri Dec 9 21:52:44 UTC 2011

hi david

the systemTracing package for pharo is available in PharoTaskForces
I do not know what changed compared with the one of squeak.


On Dec 8, 2011, at 6:49 PM, David T. Lewis wrote:

> This is an update to the system tracer that makes it possible to
> trace current Squeak images to 64-bit image format. Prior to this
> update, only pre-closure images could be converted to 64-bit object
> format.
> Thanks to Eliot for the tip that pointed me to the solution, which
> is that instances of BlockClosure need to have the value of their
> startpc instance variable adjusted to match byte offsets in the
> enclosing compiled method when converting from 32-bit to 64-bit
> object format.
> This works on Squeak, not yet tested on Pharo.
> Dave
> On Thu, Dec 08, 2011 at 05:17:49AM +0000, squeak-dev-noreply at lists.squeakfoundation.org wrote:
>> Dave Lewis uploaded a new version of SystemTracing to project SystemTracing:
>> http://www.squeaksource.com/SystemTracing/SystemTracing-dtl.23.mcz
>> ==================== Summary ====================
>> Name: SystemTracing-dtl.23
>> Author: dtl
>> Time: 7 December 2011, 11:17:47 am
>> UUID: 9f6136af-8117-416c-bf54-baf2a32bb571
>> Ancestors: SystemTracing-dtl.22
>> Support tracing closure-enabled images to 64-bit object format.
>> When tracing to a different word size, e.g. trace to 64-bit image from a 32-bit image, adjust the startpc of all BlockClosure instances to account for different word size in the enclosing compiled method.

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