llvm dev - Apr 2012 - [LLVMdev] How to compile a linux module into .bc file using clang or llvm command?

Hi, my friends


I know there is a difference between compiling a linux module and a simple
helloworld programme.
If I compile a helloworld.c file, the command is
"clang -O3 -emit-llvm hello.c -c -o hello.bc"
But what the command should be if I want to compile a linux module into a .bc
file? (I know it may be an easy question to you guys, but I really don't
know where to find the answer on llvm.org.)

Thank you!





--

            祝好！
 
  甄凯
------------------------------------------------------------------------------------------------------
2012-04-11
------------------------------------------------------------------------------------------------------
Name: 甄凯(ZhenKai)
Homepage:http://www.renren.com/262729393
Email: zhenkaixd at 126.com or 846227103 at qq.com
TEL: 15810729006(Beijing)
Address: Room I-406, Central Building, Tsinghua University, Beijing, China.
100084.
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2012/4/10 15102925731 <zhenkaixd at 126.com>
>  Hi, my friends
>
>
> I know there is a difference between compiling a linux module and a simple
> helloworld programme.
> If I compile a helloworld.c file, the command is
> *"clang -O3 -emit-llvm hello.c -c -o hello.bc"*
> But what the command should be if I want to compile a linux module into a
> .bc file? (I know it may be an easy question to you guys, but I really
> don't know where to find the answer on llvm.org.)
>
What do you mean by linux module?  A shared library (.so)? A kernel module
(.ko)?

>
> Thank you!
>
>
>
>
> --
>              祝好！
>
>   甄凯
>
>
------------------------------------------------------------------------------------------------------
> 2012-04-11
>
>
------------------------------------------------------------------------------------------------------
> Name: 甄凯(ZhenKai)
> Homepage:http://www.renren.com/262729393
> Email: zhenkaixd at 126.com or 846227103 at qq.com
> TEL: 15810729006(Beijing)
> Address: Room I-406, Central Building, Tsinghua University, Beijing,
> China. 100084.
>
>
>
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>
>

-- 

Thanks,

Justin Holewinski
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It's actually is .c file.
I just want firstly to compile helloworldmodule.c into helloworldmodule.bc.
Then I run a LLVM pass on it to do some optimization, and then I compile the
modified .bc file into .ko file.

 So, could you tell me how to compile helloworldmodule.c into
helloworldmodule.bc? I think it's not the same command "clang -O3
-emit-llvm hello.c -c -o hello.bc". Because it is a device driver that will
be at last compiled to be .ko file.

Thank you!


--

            祝好！
 
  甄凯
------------------------------------------------------------------------------------------------------
2012-04-11
------------------------------------------------------------------------------------------------------
Name: 甄凯(ZhenKai)
Homepage:http://www.renren.com/262729393
Email: zhenkaixd at 126.com or 846227103 at qq.com
TEL: 15810729006(Beijing)
Address: Room I-406, Central Building, Tsinghua University, Beijing, China.
100084.

在 2012-04-11 09:56:21，"Justin Holewinski" <justin.holewinski at
gmail.com> 写道：


2012/4/10 15102925731 <zhenkaixd at 126.com>

 Hi, my friends


I know there is a difference between compiling a linux module and a simple
helloworld programme.
If I compile a helloworld.c file, the command is
"clang -O3 -emit-llvm hello.c -c -o hello.bc"
But what the command should be if I want to compile a linux module into a .bc
file? (I know it may be an easy question to you guys, but I really don't
know where to find the answer on llvm.org.)



What do you mean by linux module?  A shared library (.so)? A kernel module
(.ko)?
 

Thank you!





--

            祝好！
 
  甄凯
------------------------------------------------------------------------------------------------------
2012-04-11
------------------------------------------------------------------------------------------------------
Name: 甄凯(ZhenKai)
Homepage:http://www.renren.com/262729393
Email: zhenkaixd at 126.com or 846227103 at qq.com
TEL: 15810729006(Beijing)
Address: Room I-406, Central Building, Tsinghua University, Beijing, China.
100084.



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--


Thanks,


Justin Holewinski

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