[cfe-dev] 64-bit Tool set linker error on windows

[Apoorva Paneliya via cfe-dev]

Hi Reid,

First of all, Thank you very much for reply.

I tried your suggestions.

*1. cmake -G "Visual Studio 14 Win64" ..\llvm*
*2. cmake -DCMAKE_GENERATOR_PLATFORM=x64 -G "Visual Studio 14" ..\llvm*

In both the cases, it generates project successfully with default
configuration to "Debug X64".
But cmake Generates below warning.

CMake Warning at CMakeLists.txt:39 (message):
  Visual Studio generators use the x86 host compiler by default, even for
  64-bit targets.  This can result in linker instability and out of memory
  errors.  To use the 64-bit host compiler, pass -Thost=x64 on the CMake
  command line.

And it took cl.exe from below paths.

Check for working C compiler: C:/Program Files (x86)/Microsoft Visual
Studio 14.0/VC/bin*/x86_amd64*/cl.exe -- works
Check for working CXX compiler: C:/Program Files (x86)/Microsoft Visual
Studio 14.0/VC/bin/*x86_amd64*/cl.exe -- works

Due to warning, I passed "-Thost=x64" arguments to cmake.

*3. cmake -DCMAKE_GENERATOR_PLATFORM=x64 -Thost=x64 -G "Visual Studio 14"
..\llvm*

Now, No warning message.

And it took cl.exe from below paths.

Check for working C compiler: C:/Program Files (x86)/Microsoft Visual
Studio 14.0/VC/bin/*amd64*/cl.exe -- works
Check for working CXX compiler: C:/Program Files (x86)/Microsoft Visual
Studio 14.0/VC/bin/*amd64*/cl.exe -- works

*clang.exe also got built successfully.*

Thanks & Regards,
Apoorva


On Wed, Jan 17, 2018 at 11:06 PM, Reid Kleckner <rnk at google.com> wrote:

> If you had to change the default platform target to debug-x64, it sounds
> like CMake did not generate x64 project files. I believe our CMake scripts
> do not support generating projects that allow changing from x86 to x64.
>
> I am only familiar with the old way to generate x64 project files, which
> is to use the "Visual Studio 14 Win64" generator or something like that.
> The documentation (https://cmake.org/cmake/help/v3.9/generator/Visual%
> 20Studio%2015%202017.html) suggests that the new way is to pass
> "-DCMAKE_GENERATOR_PLATFORM=x64".
>
> On Tue, Jan 16, 2018 at 10:26 PM, Apoorva Paneliya via cfe-dev <
> cfe-dev at lists.llvm.org> wrote:
>
>> hi all,
>>
>> http://clang.llvm.org/get_started.html
>> I am followed the instruction given in above article for compiling 64-bit
>> toolset on windows using Visual studio 15.
>>
>>
>> Command used for visual studio project generation:- *cmake -Thost=x64 -G
>> "Visual Studio 14" ..\llvm*
>>
>> it successfully generates LLVM.sln.
>> *Now, open LLVM.sln and change the platform target to "debug-x64".*
>> start building clang.exe project.
>>
>> I am seeing below errors.
>>
>> 1. x64\Debug\ItaniumDemangle.obj : *fatal error LNK1112: module machine
>> type 'x64' conflicts with target machine type 'X86'*
>> 2. x64\Debug\ClangASTNodesEmitter.obj : fatal error LNK1112: module
>> machine type 'x64' conflicts with target machine type 'X86'
>> 3. x64\Debug\AsmLexer.obj : fatal error LNK1112: module machine type
>> 'x64' conflicts with target machine type 'X86'
>>
>> And many more such error.
>>
>> *so, what to know solution for such errors or am i missing any steps?*
>>
>> Thanks in advance.!!
>>
>> _______________________________________________
>> cfe-dev mailing list
>> cfe-dev at lists.llvm.org
>> http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-dev
>>
>>
>
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