llvm dev - Apr 2012 - [LLVMdev] How to compile this linux-driver like programme into .bc file?

Thanks for your help and patience!

Best regards,
Zhen Kai
At 2012-04-16 15:35:25,"陳韋任" <chenwj at iis.sinica.edu.tw>
wrote:
>> The thing is that I know the Makefile to complete that task. But what 
I want to know the clang command that can do that. Since the makefile will
generate a .ko file while I can use the clang command "-O3-emit-llvm"
to generate a corresponding .bc file so the pass can be run on that.
>
>  I guess you can use something like (I am not SURE if Clang support those
GCC
>flags entirely, try it yourself),
>
>$ clang -O2 -DMODULE -D__KERNEL__ YOUR_MODULE.c \
>  -W -Wall -Wstrict-prototypes -Wmissing-prototypes \
>  -isystem /lib/modules/`uname -r`/build/include \
>  -emit-llvm -o YOUR_MODULE.bc
>
>Regards,
>chenwj
>
>-- 
>Wei-Ren Chen (陳韋任)
>Computer Systems Lab, Institute of Information Science,
>Academia Sinica, Taiwan (R.O.C.)
>Tel:886-2-2788-3799 #1667
>Homepage: http://people.cs.nctu.edu.tw/~chenwj

> >$ clang -O2 -DMODULE -D__KERNEL__ YOUR_MODULE.c \
> >  -W -Wall -Wstrict-prototypes -Wmissing-prototypes \
> >  -isystem /lib/modules/`uname -r`/build/include \
> >  -emit-llvm -o YOUR_MODULE.bc
  You might need "-c" option so that Clang will not link the .bc file
to
other libraries (.o file), just emit the final .bc file.

Regards,
chenwj

-- 
Wei-Ren Chen (陳韋任)
Computer Systems Lab, Institute of Information Science,
Academia Sinica, Taiwan (R.O.C.)
Tel:886-2-2788-3799 #1667
Homepage: http://people.cs.nctu.edu.tw/~chenwj

Dear Chen,
I tried the command you told me. It turns out that clang use -I option rather
then -isystem.
But after I included the init.h file, it fired at me that
"asm/processor.h" is not fount. Then I included that file
using -I option and some other files were said not found! It's like I opened
a can of worms...

I can still continue to include the file that is said not found. But is it the
right way ?

Thank you!


clang -O2 -DMODULE -D__KERNEL__ YOUR_MODULE.c \
>>  -W -Wall -Wstrict-prototypes -Wmissing-prototypes \
>>  -I /lib/modules/`uname -r`/build/include \
>>  -emit-llvm -o YOUR_MODULE.bc

--

            祝好！
 
  甄凯
------------------------------------------------------------------------------------------------------
2012-04-18
------------------------------------------------------------------------------------------------------
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 2012-04-16 19:42:46，15102925731 <zhenkaixd at 126.com>
写道：
>Thanks for your help and patience!
>
>Best regards,
>Zhen Kai
>At 2012-04-16 15:35:25,"陳韋任" <chenwj at iis.sinica.edu.tw>
wrote:
>>> The thing is that I know the Makefile to complete that task. But
what  I want to know the clang command that can do that. Since the makefile will
generate a .ko file while I can use the clang command "-O3-emit-llvm"
to generate a corresponding .bc file so the pass can be run on that.
>>
>>  I guess you can use something like (I am not SURE if Clang support
those GCC
>>flags entirely, try it yourself),
>>
>>$ clang -O2 -DMODULE -D__KERNEL__ YOUR_MODULE.c \
>>  -W -Wall -Wstrict-prototypes -Wmissing-prototypes \
>>  -isystem /lib/modules/`uname -r`/build/include \
>>  -emit-llvm -o YOUR_MODULE.bc
>>
>>Regards,
>>chenwj
>>
>>-- 
>>Wei-Ren Chen (陳韋任)
>>Computer Systems Lab, Institute of Information Science,
>>Academia Sinica, Taiwan (R.O.C.)
>>Tel:886-2-2788-3799 #1667
>>Homepage: http://people.cs.nctu.edu.tw/~chenwj
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.llvm.org/pipermail/llvm-dev/attachments/20120418/b84dadb7/attachment.html>

I may try to use the Makefile then.

When using gcc
the Makefile is
CC := colorgcc
obj-m := hello.o
KERNELDIR := /lib/modules/2.6.36.1/build
PWD := $(shell pwd)
modules:
    $(MAKE) -C $(KERNELDIR) M=$(PWD) modules
#modules install:
#    $(MAKE) -C $(KERNELDIR) M=$(PWD) modules_install

How to change it so the generating result is .bc file not the .o file? PLEASE BE
KIND AND HELP ME~~


--

            祝好！
 
  甄凯
------------------------------------------------------------------------------------------------------
2012-04-18
------------------------------------------------------------------------------------------------------
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 2012-04-18 21:56:43,15102925731 <zhenkaixd at 126.com> wrote:

Dear Chen,
I tried the command you told me. It turns out that clang use -I option rather
then -isystem.
But after I included the init.h file, it fired at me that
"asm/processor.h" is not fount. Then I included that file
using -I option and some other files were said not found! It's like I opened
a can of worms...

I can still continue to include the file that is said not found. But is it the
right way ?

Thank you!


clang -O2 -DMODULE -D__KERNEL__ YOUR_MODULE.c \
>>  -W -Wall -Wstrict-prototypes -Wmissing-prototypes \
>>  -I /lib/modules/`uname -r`/build/include \
>>  -emit-llvm -o YOUR_MODULE.bc

--

            祝好！
 
  甄凯
------------------------------------------------------------------------------------------------------
2012-04-18
------------------------------------------------------------------------------------------------------
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 2012-04-16 19:42:46，15102925731 <zhenkaixd at 126.com>
写道：
>Thanks for your help and patience!
>
>Best regards,
>Zhen Kai
>At 2012-04-16 15:35:25,"陳韋任" <chenwj at iis.sinica.edu.tw>
wrote:
>>> The thing is that I know the Makefile to complete that task. But
what  I want to know the clang command that can do that. Since the makefile will
generate a .ko file while I can use the clang command "-O3-emit-llvm"
to generate a corresponding .bc file so the pass can be run on that.
>>
>>  I guess you can use something like (I am not SURE if Clang support
those GCC
>>flags entirely, try it yourself),
>>
>>$ clang -O2 -DMODULE -D__KERNEL__ YOUR_MODULE.c \
>>  -W -Wall -Wstrict-prototypes -Wmissing-prototypes \
>>  -isystem /lib/modules/`uname -r`/build/include \
>>  -emit-llvm -o YOUR_MODULE.bc
>>
>>Regards,
>>chenwj
>>
>>-- 
>>Wei-Ren Chen (陳韋任)
>>Computer Systems Lab, Institute of Information Science,
>>Academia Sinica, Taiwan (R.O.C.)
>>Tel:886-2-2788-3799 #1667
>>Homepage: http://people.cs.nctu.edu.tw/~chenwj


-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.llvm.org/pipermail/llvm-dev/attachments/20120418/83e1cfe5/attachment.html>