[CMake] Need to know the ASM flag that needs to be modified in cmake

[Ravi Raman]

Hi,

Thanks Petr for your comments. We had already tried this approach. But it did not work.
We set the option “/D _WIN64” in CMAKE_ASM_MASM_FLAGS but it has no impact on the execution of ml64.exe.
ml64.exe execution always shows only the following options i.e. does not include “/D _WIN64”.

ml64.exe /c /nologo /Zi /Fo"testx64.dir\Release\Testx64.obj" /W3 /errorReport:prompt  /Ta..\..\..\testx64\Testx64.asm

We also tried setting the cmake variable CMAKE_ASM_MASM_COMPILER_ARG1 with the option “/D _WIN64”
But with that also, there is no change, the result is the same.

So, somehow we need to find a way to stuff “/D _WIN64” in the compile options of ml64.exe

Thanks & Regards

Ravi Raman
Xoriant Solutions Pvt. Ltd
4th Floor, Winchester, Hiranandani Business Park, Powai, Mumbai 400076, INDIA.
Tel: +91 22 30511000,9930100026 Extn: 2144 Voip No. 4088344495/96/97/98 Voip Extn:1178| Fax: +91 22 30511111
ravi.raman at xoriant.com<mailto:ram.singh at xoriant.com>| http://www.xoriant.com<http://www.xoriant.com/>

From: Petr Kmoch [mailto:petr.kmoch at gmail.com]
Sent: Wednesday, August 27, 2014 12:16 PM
To: Ravi Raman
Cc: cmake at cmake.org
Subject: Re: [CMake] Need to know the ASM flag that needs to be modified in cmake

Hi Ravi,

I've never used ASM_MASM (or any other language beside C, CXX and Fortran), but if it follows normal CMake language rules, the following variables should exist:
CMAKE_ASM_MASM_FLAGS
CMAKE_ASM_MASM_FLAGS_<CONFIG>
(where <CONFIG> is a placeholder for uppercase configuration name).
See the list of per-language variables in the docs: http://www.cmake.org/cmake/help/v3.0/manual/cmake-variables.7.html#variables-for-languages
Petr

On Tue, Aug 26, 2014 at 6:28 AM, Ravi Raman <ravi.raman at xoriant.com<mailto:ravi.raman at xoriant.com>> wrote:
Hi,

In our cmake project, there is an assembler file (.asm extension) that needs to be compiled to create object file (.obj) using microsoft macro assembler (ml.exe for 32-bit and ml64.exe for 64-bit)
This is happening successfully.
But there is a preprocessor directive (_WIN64) as follows within the .asm code, which is not getting set.
IFDEF _WIN64
We would like to know which is the ASM related cmake flag variable that needs to be manipulated in order to set _WIN64

Details as follows:

1.       In CMakeLists.txt, we do the following to enable microsoft macro assembler to compile .asm files

enable_language(ASM_MASM)

2.       We include the .asm file Testx64.asm in the source list

3.       Because of the above enable_language step, the MASM step gets correctly triggered as follows with the following ml64.exe options to compile the .asm to create corresponding .obj

_MASM:

  Assembling ..\..\..\testx64\Testx64.asm...

  cmd.exe /C "C:\Users\raman_r\AppData\Local\Temp\tmp8a9b40c55523496e9edce668c1f812a2.cmd"

  ml64.exe /c /nologo /Zi /Fo"testx64.dir\Release\Testx64.obj" /W3 /errorReport:prompt  /Ta..\..\..\testx64\Testx64.asm



Note that in the above step 3, ml64.exe execution creates the output object file Testx64.obj, but in this there is no pre-processor switch /D _WIN64

Is there a way in cmake to manipulate any ASM related cmake flag, so that the above ml64.exe execution has /D _WIN64 option set ?

Thanks & Regards

Ravi Raman
Xoriant Solutions Pvt. Ltd
4th Floor, Winchester, Hiranandani Business Park, Powai, Mumbai 400076, INDIA.
Tel: +91 22 30511000<tel:%2B91%2022%2030511000>,9930100026 Extn: 2144 Voip No. 4088344495<tel:4088344495>/96/97/98 Voip Extn:1178| Fax: +91 22 30511111<tel:%2B91%2022%2030511111>
ravi.raman at xoriant.com<mailto:ram.singh at xoriant.com>| http://www.xoriant.com<http://www.xoriant.com/>


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