New Cog VMs available

[Eliot Miranda]

...at http://www.mirandabanda.org/files/Cog/VM/VM.r3630 a.k.a. http://www.mirandabanda.org/files/Cog/VM/latest.

Noe tat there is a JIT bug in the 64-bit VMs which I shall look at this week.

CogVM binaries as per VMMaker.oscog-eem.1697/r3630

General:

Fix serious bug in jitted perform: primitive.  Thanks to Stephane Ducasse 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 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.

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

[Eliot Miranda]

... 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.

------------------------------------------------------------------------

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.

[Eliot Miranda]

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

... 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 and/or broadcast (SO_REUSEADDR, SO_REUSEPORT & SO_BROADCAST).

--

_,,,^..^,,,_

best, Eliot