Bug#873778: mozjs52 on s390x and other big-endian machines

[Emilio Pozuelo Monfort]

On 12/10/17 01:16, Simon McVittie wrote:
> On Mon, 09 Oct 2017 at 10:36:52 +0100, Simon McVittie wrote:
>> On Sun, 01 Oct 2017 at 23:36:52 +0200, Michael Biebl wrote:
>>>>> The remaining problem seems to be a big-endian issue (mips, s390x, 
>>>>> hppa, powerpc, sparc64). ppc64 fails in a slightly different
>>>>> manner, might just be it's failing earlier for a different reason
>>>>> but would also suffer from this bug.
>>
>> Here is some work-in-progress on this:
>>
>> https://anonscm.debian.org/git/users/smcv/mozjs52.git
>>
>> I've made it regenerate the data file on both endiannesses in the hope
>> that this will make us more likely to catch errors. The generated file
>> on little-endian is not the same as the pregenerated one :-(
>>
>> This is only build-tested on x86_64 at this point, not runtime-tested.
> 
> The unit tests all pass or are skipped on x86_64 (on barriere).
> 
> On s390x (zelenka), I now see meaningful test results, with the unexpected
> failures listed below. So something is wrong on s390x in at least a
> few cases, but it's basically a functional JavaScript interpreter,
> and a lot of the tests pass. That seems a lot better than the current
> situation. Good enough for experimental, at least?

Agreed. I'd say let's get this uploaded, and then if we can't fix the test suite
even further, disable it (it was already disabled on older mozjs and on firefox
as you pointed out so no regression here...) and call for help to interested
parties.

Thanks!
Emilio