[lldb-dev] LLDB windows build and /bigobj

[Aidan Dodds via lldb-dev]

Hi Reid,
Thanks for taking a look at this.
Here was the full error:

llvm\tools\clang\lib\ASTMatchers\Dynamic\Registry.cpp : fatal error C1128: number of sections exceeded object file format limit: compile with /bigobj

That file seems to have quite a bit of macro magic going on, so I'll try 
to dig deeper into this when I'm back in the office tomorrow.

On 09/02/2016 17:11, Reid Kleckner wrote:
> Which object file has crossed the limit? When this has happened 
> before, this has usually highlighted over use of templates, which is 
> worth fixing because it speeds up builds on other platforms as well. 
> If MSVC 2015 instead just happens to generate say one extra section 
> per function, then we should probably use bigobj.
>
> On Tue, Feb 9, 2016 at 3:55 AM, Aidan Dodds via lldb-dev 
> <lldb-dev at lists.llvm.org <mailto:lldb-dev at lists.llvm.org>> wrote:
>
>     Hi all,
>
>     I pulled in recent changes to upstream llvm, clang and lldb and it
>     seems
>     to have tipped my windows build over the edge, and its complaining
>     that
>     my object files have exceeded the section limit.
>     This error is raised while building the clang libraries. Has anyone
>     else seen this problem while doing an x64 build with with Visual
>     Studio
>     2015?
>
>     This problem can be fixed however by specifying /bigobj as a compiler
>     flag.  The problem is however that this needs to be given to clang,
>     which in turn inherits most of its cmake from llvm.
>
>     I have attached my prospective patch for this issue, but wanted to
>     check
>     in with the lldb folk first to see if anyone has hit this issue,
>     and if
>     they would have any feedback before I submit it to llvm.
>
>     Thanks,
>     Aidan
>
>     -- 
>     Aidan Dodds
>     staff software engineer, Debuggers
>     Codeplay Software Ltd
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