[Vm-dev] OSProcessPlugin: VMConstruction-Plugins-OSProcessPlugin-dtl.32.mcz

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Dave Lewis uploaded a new version of VMConstruction-Plugins-OSProcessPlugin to project OSProcessPlugin:
http://www.squeaksource.com/OSProcessPlugin/VMConstruction-Plugins-OSProcessPlugin-dtl.32.mcz

==================== Summary ====================

Name: VMConstruction-Plugins-OSProcessPlugin-dtl.32
Author: dtl
Time: 21 January 2012, 10:43:22 am
UUID: 6c9726ae-cdfb-4a54-8ada-48fb8f6c4da8
Ancestors: VMConstruction-Plugins-OSProcessPlugin-dtl.31

OSProcessPlugin 4.4.8

Fix primitivePrintAllStacksOnSignal. Works on both Cog and Interpreter VM, but may have linker issues on Mac OS X (see below).

To set signal hander to print stacks on receipt of SIGUSR1 without exiting the VM:
  "OSProcess accessor setPrintAllStacksOnSigUsr1"

To restore to default handler (which may exit the VM):
  "OSProcess accessor clearPrintAllStacksOnSigUsr1"

May be used with any signal, i.e. if SIGUSR1 is used by a multimedia plugin, then SIGQUIT might be used to print stacks. To set handler:
  "OSProcess accessor primPrintAllStacksOnSignal: OSProcess accessor primSigQuitNumber"

To restore to original SIGQUIT handler (i.e. exit the VM):
  "OSProcess accessor primPrintAllStacksOnSignal: nil"

Note for building on OS X: The printAllStacks() function address is dynamically loaded from the interpreter module. It may be necessary to declare this in os_exports[]  in osExports.c for this to work on OS X.