15102925731
2012-Apr-11 03:11 UTC
[LLVMdev] How to compile a linux module into .bc file using clang or llvm command?
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.
_______________________________________________
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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John Criswell
2012-Apr-11 15:48 UTC
[LLVMdev] How to compile a linux module into .bc file using clang or llvm command?
On 4/10/12 10:11 PM, 15102925731 wrote:> 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.No, that's exactly how you would do it, although you might need to use GCC + Dragonegg instead of clang because the Linux 3.0 kernel doesn't compile with Clang out-of-the-box (at least for me, anyway). -- John T.> > Thank you! > > -- > ??! > ?? > ------------------------------------------------------------------------------------------------------ > 2012-04-11 > ------------------------------------------------------------------------------------------------------ > Name: ??(ZhenKai) > Homepage:http://www.renren.com/262729393 > Email: zhenkaixd at 126.com <mailto:zhenkaixd at 126.com>or 846227103 at qq.com > <mailto:846227103 at qq.com> > TEL: 15810729006(Beijing) > Address: Room I-406, Central Building, Tsinghua University, Beijing, > China. 100084. > > ? 2012-04-11 09:56:21,"Justin Holewinski" > <justin.holewinski at gmail.com> ??: > > > 2012/4/10 15102925731 <zhenkaixd at 126.com <mailto: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 <http://llvm.org>.) > > > What do you mean by linux module? A shared library (.so)? A > kernel module (.ko)? > > > Thank you! > > > > > -- > ??! > ?? > ------------------------------------------------------------------------------------------------------ > 2012-04-11 > ------------------------------------------------------------------------------------------------------ > Name: ??(ZhenKai) > Homepage:http://www.renren.com/262729393 > Email: zhenkaixd at 126.com <mailto:zhenkaixd at 126.com>or > 846227103 at qq.com <mailto: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 <mailto:LLVMdev at cs.uiuc.edu> > http://llvm.cs.uiuc.edu > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev > > > > > -- > > Thanks, > > Justin Holewinski > > > > > > _______________________________________________ > LLVM Developers mailing list > LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20120411/5a81cfa3/attachment.html>
15102925731
2012-Apr-12 01:25 UTC
[LLVMdev] How to compile a linux module into .bc file using clang or llvm command?
Yeah, but I tried that command and error message was generated:
hellomodule.c:1:10: fatal error: 'linux/init.h' file not found
#include <linux/init.h>
^
1 error generated.
how to solve this problem??
Thanks!
--
祝好！
甄凯
------------------------------------------------------------------------------------------------------
2012-04-12
------------------------------------------------------------------------------------------------------
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.
At 2012-04-11 23:48:07,"John Criswell" <criswell at
illinois.edu> wrote:
On 4/10/12 10:11 PM, 15102925731 wrote:
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.
No, that's exactly how you would do it, although you might need to use GCC +
Dragonegg instead of clang because the Linux 3.0 kernel doesn't compile with
Clang out-of-the-box (at least for me, anyway).
-- John T.
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.
_______________________________________________
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
_______________________________________________
LLVM Developers mailing list
LLVMdev at
cs.uiuc.eduhttp://llvm.cs.uiuc.eduhttp://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
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