[squeak-dev] Re: New Cog VMs available

Eliot Miranda eliot.miranda at gmail.com
Thu Feb 25 20:46:04 UTC 2016

On Thu, Feb 25, 2016 at 9:29 AM, Eliot Miranda <eliot.miranda at gmail.com>

> ... at http://www.mirandabanda.org/files/Cog/VM/VM.r3632.
> These include 64-bit VMs whose Smalltalk execution and FFI are
> functional.  However, their SocketPlugin is more than somewhat broken.
> Executing the SocketPlugin tests results in a hard lockup, at least on Mac
> OS X.  This is my next focus for 64-bits.

It turns out that the 64-bit socket issues are Mac OS only.  The linux
64-bit VMs seem to be fine.  The problems are to do with socket reuse

> ------------------------------------------------------------------------
> CogVM binaries as per VMMaker.oscog-eem.1700/r3632
> General:
> Fix serious bug in jitted perform: primitive.  Thanks to Stephane Rollandin
> for finding and to Levente Uzoni for diagnosing the bug.  If the argument
> count is one greater than the max number of register arguments (2 in Spur,
> hence perform:with:with:) then the code to remove the receiver and
> arguments
> from the stack neglects to remove the receiver and selector.
> Spur:
> Fix special selector arithmetic and comparison in the 64-bit Cogit.  My
> original
> code for genJumpNotSmallIntegersIn:andScratchReg: merely jumped if the tags
> differed, hence not jumping if both arguments were SmallFloat64s (or both
> Characters).  The new code requires an additional scratch register;
> hence add genJumpNotSmallIntegersIn:andScratch:scratch:.
> Fix bug in markAndTraceWeaklingsFrom:.  Fields of weaklings may be
> immediate
> so must use followOopField:ofObject: not followObjField:ofObject:.
> Fix
> https://pharo.fogbugz.com/f/cases/17536/VM-Crash-when-adding-an-iVar-to-a-subclass-of-SystemAnnouncement
> .
> When weaklings (and when ephemerons) are scan-marked forwarders must be
> coped
> with.
> 64-bit VMs:
> Fix a bug in printHex: for 64-bits (faulty arithmetic).
> ThreadedFFIPlugin:
> Fix the remaining 64-bit issues in the ThreadedFFIPlugin.  The
> X64SysVFFIPlugin
> now passes the test suite.  Hence include the FFI plugin in 64-bit VMs.
> Make the SqueakFFIPrims plugin internal in the Mac pharo builds.
> Mac VMs:
> Have the Mac OS X build install Localizable.strings.  Add versions for
> Newspeak, Pharo and Squeak.  Rename the key to SelectImagePanePrompt.
> Temporarily disable the Serial plugin in the Pharo Mac VM until we can
> track
> down the relevant platforms/iOS support for the Pharo extensions.
> Fix argument access on the iOS platform (Mac OS VMs).
> _,,,^..^,,,_
> best, Eliot

best, Eliot
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.squeakfoundation.org/pipermail/squeak-dev/attachments/20160225/ef71250b/attachment.htm

More information about the Squeak-dev mailing list