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

Hayden Livingston via llvm-dev llvm-dev at lists.llvm.org
Thu Oct 1 11:00:09 PDT 2015

Maybe looking at their code might help:


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!
>> _______________________________________________
>> cfe-dev mailing list
>> cfe-dev at lists.llvm.org
>> http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-dev
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev

More information about the llvm-dev mailing list