[squeak-dev] [Vm-dev] VM Maker: VMMaker.oscog-eem.2606.mcz
Levente Uzonyi
leves at caesar.elte.hu
Fri Dec 13 00:30:32 UTC 2019
Hi Eliot,
On Thu, 12 Dec 2019, Eliot Miranda wrote:
> Hi Levente,
>
>>> On Thu, 12 Dec 2019, Levente Uzonyi wrote:
>>>
>>> Hi Eliot,
>>>
>>>> On Thu, 12 Dec 2019, Eliot Miranda wrote:
>>>>
>>>> Hi Chris,
>>>>> On Dec 11, 2019, at 8:03 PM, Chris Muller <asqueaker at gmail.com> wrote:
>>>>
>>>> Is this a fix we should want in the 5.3 release?
>>>> I do t think it affects the release. This only affects builds that use a particular version of gcc on ARM64. As far as we’re aware, it doesn’t affect x86-64 builds. But if anyone sees the issue in a current build they
>>>> should say so asap.
>>>
>>> This seems to be the same bug described in this thread: http://forum.world.st/Primitive-40-asFloat-fails-for-me-tp5095689p5095908.html
>
>> On Dec 12, 2019, at 2:45 AM, Levente Uzonyi <leves at caesar.elte.hu> wrote:
>>
>> And the point is that the bug causes issues on x86.
>
> Thanks! Will fix asap and communicate with the board if this implies we need a different release candidate VM.
I just built a new 64-bit VM with gcc 8.3, and the floating point issue
with #basicAt: seems fixed. I ran some tests in the image, and they all
passed.
Levente
P.S.: there is a configuration issue with the new sndio sound plugin. The
build script tries to build it on linux and fails.
>
>>> Levente
>>>
>>>>
>>>>> On Wed, Dec 11, 2019 at 2:09 PM <commits at source.squeak.org> wrote:
>>>>
>>>> Eliot Miranda uploaded a new version of VMMaker to project VM Maker:
>>>> http://source.squeak.org/VMMaker/VMMaker.oscog-eem.2606.mcz
>>>>
>>>> ==================== Summary ====================
>>>>
>>>> Name: VMMaker.oscog-eem.2606
>>>> Author: eem
>>>> Time: 11 December 2019, 12:08:45.007873 pm
>>>> UUID: be1eac72-340a-4ed5-bfe7-6051597847a4
>>>> Ancestors: VMMaker.oscog-eem.2605
>>>>
>>>> Fix the "funny floats" issue with gcc et al. Casting the address of an automatic long to an int * is no longer allowed. Thanks to Pablo Tessone for the analysis and fix.
>>>>
>>>> =============== Diff against VMMaker.oscog-eem.2605 ===============
>>>>
>>>> Item was changed:
>>>> ----- Method: Spur64BitMemoryManager>>fetchLong32:ofFloatObject: (in category 'object access') -----
>>>> fetchLong32: fieldIndex ofFloatObject: oop
>>>> "index by word size, and return a pointer as long as the word size"
>>>>
>>>> | bits |
>>>> (self isImmediateFloat: oop) ifFalse:
>>>> [^self fetchLong32: fieldIndex ofObject: oop].
>>>> bits := self smallFloatBitsOf: oop.
>>>> + ^fieldIndex = 0
>>>> + ifTrue: [bits bitAnd: 16rFFFFFFFF]
>>>> + ifFalse: [bits >> 32]!
>>>> - ^self
>>>> - cCode: [(self cCoerceSimple: (self addressOf: bits) to: #'int *') at: fieldIndex]
>>>> - inSmalltalk:
>>>> - [self flag: #endian.
>>>> - fieldIndex = 0
>>>> - ifTrue: [bits bitAnd: 16rFFFFFFFF]
>>>> - ifFalse: [bits >> 32]]!
>>
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