Oops, that should read "If SA_ONSTACK is not defined" not "SQ_ONSTACK".

Dave

On Sat, Dec 22, 2012 at 09:09:06PM +0000, squeak-dev-noreply@lists.squeakfoundation.org wrote:

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

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

Name: VMConstruction-Plugins-OSProcessPlugin-dtl.37 Author: dtl Time: 22 December 2012, 3:08:51 am UUID: e3c06c1b-76d8-4025-9d13-5fe582618c62 Ancestors: VMConstruction-Plugins-OSProcessPlugin-dtl.36

OSProcessPlugin 4.5.1

Use an alternate signal stack to avoid consuming native stack space. This prevents stack usage problems when running on Cog (stack depth exceeded when a signal is being handled). Adapted from VMConstruction-Plugins-OSProcessPlugin.oscog-eem.38 with the following changes:

• Always use sigaltstack if the platform supports it (i.e. do not test for Cog).
• If SQ_ONSTACK is not defined, then assume the platform cannot support signalstack and use the default stack. Use macros to define away unsupportable code.
• Fix some type declarations to address int/pointer comparison
• Use #isDefined:inSmalltalk:comment:ifTrue:ifFalse: