[cfe-dev] building LLVM/Clang on Windows 7 x64 using MinGW/MSYS

[Dennis Cote]

Hi Yaron,

 

I am using the 32 bit MinGW tools, so that may be the problem. I would have hoped for an "out of memory" error from the linker rather than an access violation, but I know many programmers assume there will never be a memory problem on today's machines.

 

I will have to try the 64 bit version Mikael linked to, to see if the 32 bit linker is actually running out of memory address space.

 

Thanks to you and Mikael for the tips. 

 

Dennis Cote

 

From: Yaron Keren [mailto:yaron.keren at gmail.com] 
Sent: October 10, 2013 6:10 AM
To: Mikael Lepistö
Cc: Dennis Cote; cfe-dev at cs.uiuc.edu Developers
Subject: Re: [cfe-dev] building LLVM/Clang on Windows 7 x64 using MinGW/MSYS

 

3GB is too close for comfort for the 32 bit linker.

G M reports success with the 64 bit toolchain so maybe it's actually required with current versions.

 

Are you using the 32-bit toolchain or 64-bit toolchain of mingw-builds?

 

Yaron

 

 

2013/10/10 Mikael Lepistö <mikael.lepisto at vincit.fi>

Hi,

 

I also had some problems with building llvm+clang on MinGW 4.8.1 + MSYS. Another thing was that linker did require ~3GB memory to complete on x64.

 

Here in the readme I have listed steps and linked versions of MinGW and MSYS to use for being able to compile llvm + clang on Windows 7.

 

https://github.com/KhronosGroup/webcl-validator#building-with-windows-mingw--msys

 

Good luck!

 

Best regards, Mikael Lepistö

 

On Thu, Oct 10, 2013 at 11:50 AM, Yaron Keren <yaron.keren at gmail.com> wrote:

	I'd try switching MingW distribution as it's very easy to do.

	If you're now using http://www.mingw.org/ try http://sourceforge.net/projects/mingwbuilds/ and vice verse. These are different distributions with different patches and different binaries. 

	For instance ld.exe in the former is 9MB and in the later 944K.

	 

	Yaron

	 

	 

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