llvm dev - Aug 2010 - [LLVMdev] Fail to get IR for a linux driver program

Hi all,

I used llvm-gcc (llvm version 2.7) to transform a linux network driver
program (for example: linux/drivers/net/zoro8390.c) to the IR form with the
command: "llvm-gcc -D__GNUCC -E -emit-llvm -I../../include zorro8390.c
-S"
under the drivers/net directory.  It didn't give the resulting IR (i.e.
zoro8390.s) and it printed out a modified program, which it looked like the
definitions for functions, macros and other stuff from other files are all
added or expanded for my target program.  How could I get the desired IR for
the driver?  Thank you very much!

Regards,
Daniel
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迪 wrote:
> Hi all,
>
> I used llvm-gcc (llvm version 2.7) to transform a linux network driver
> program (for example: linux/drivers/net/zoro8390.c) to the IR form with
> the command: "llvm-gcc -D__GNUCC -E -emit-llvm -I../../include
> zorro8390.c -S" under the drivers/net directory.  It didn't give
the
> resulting IR (i.e. zoro8390.s) and it printed out a modified program,
> which it looked like the definitions for functions, macros and other
> stuff from other files are all added or expanded for my target program.
That's what the -E flag does. It preprocesses the file.
> How could I get the desired IR for the driver?  Thank you very much!
You have the two other flags that matter, -S and -emit-llvm. Try 
removing -E and see whether that works.

Nick

> added or expanded for my target program.  How could I get the desired IR
for
> the driver?  Thank you very much!
Remove the -E cmdline option

-- 
With best regards, Anton Korobeynikov
Faculty of Mathematics and Mechanics, Saint Petersburg State University

Thank you very much for both of you!  I tried to compile the program without
the -E and then I got lots of compile errors of missing headers and
definitions.  I'm trying to eliminate them now.

Regards,
Daniel

2010/8/7 Anton Korobeynikov <anton at korobeynikov.info>
> > added or expanded for my target program.  How could I get the desired
IR
> for
> > the driver?  Thank you very much!
> Remove the -E cmdline option
>
> --
> With best regards, Anton Korobeynikov
> Faculty of Mathematics and Mechanics, Saint Petersburg State University
>
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