[llvm-dev] [cfe-dev] Orc Windows C++

[Hayden Livingston via llvm-dev]

Maybe looking at their code might help:

https://github.com/dotnet/llilc/blob/dd12743f9cdb5418f1c39b2cd756da1e8396a922/lib/Jit/LLILCJit.cpp#L299

On Thu, Oct 1, 2015 at 10:45 AM, David Blaikie via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
> Moving to the LLVM Dev list & cc'ing Lang.
>
> On Thu, Oct 1, 2015 at 4:23 AM, Joshua Gerrard via cfe-dev
> <cfe-dev at lists.llvm.org> wrote:
>>
>> Hello folks,
>>
>> I’m developing an application that uses Orc JIT for C++, which works
>> swimmingly on Mac OS X. However, the Windows version has been a battle and a
>> half, and it’s now at the point where I need some assistance to progress.
>>
>> The problem I’m having is “Relocation overflow” (related:
>> https://llvm.org/bugs/show_bug.cgi?id=23228#c8, see #8) … so I spoke to some
>> clang developers who focussed on Windows at CppCon last week, and they gave
>> me the following advice:
>> - Use ELF
>>     - Using this results in another issue about comdat sections, see here:
>> https://root.cern.ch/phpBB3/viewtopic.php?t=19808
>> - Stick with COFF, but use the large code model
>>     - No observed difference, seems to be the case because JITDefault is
>> being used in the same way as Large, which would make sense
>>     - According to the clang developers I spoke to, Lang and Andy might
>> have an interest in fixing this (would seem likely, as they’re the two
>> commenters on the first issue I linked), since it’s better to use COFF on
>> Windows than keep trying to work around it
>>
>> Any ideas?
>>
>> Thanks in advance!
>>
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>>
>
>
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