Re: Compiling assembler file with ppc_405-gcc

In message [ref] you wrote:

  --> I've included in this file:
         #include <linux/config.h>
         #include <asm/processor.h>
         #include <asm/cache.h>
         #include <asm-ppc/ppc_asm.h>
         #include "ppcbslit.h"

         [ppcbslit.h is a file which is supposed to contain a lot of
#define
          that I need in many files of my project. At the beggining of
this
          file, I have included:
              #include <stdio.h>
              #include <string.h>
              #include <sys/types.h>
              #include <sys/stat.h>
              #include <fcntl.h>
              #include <sys/ioctl.h>
              #include <unistd.h>
              #include <linux/ctype.h>                      ]

You should NOT include standard C header files in a assembler program!

assembler != C

Results:
========
   --> I don't know why but the #include of my assembler file are now
       considered (a compilation option maybe... -x assembler??)

This is because your file now has a ".S" suffix instead  of  ".s"  as
before. Read the GCC manual about details!

   --> But now there is the following problem ; I got hundreds of
errors.
       I report below a little part of them:
/opt/hardhat/devkit/ppc/405/target/usr/include/stdio.h: Assembler
messages:
/opt/hardhat/devkit/ppc/405/target/usr/include/stdio.h:30: Error:
Unrecognized opcode: `__begin_decls'
/home/jgarcia/Desktop/kernel/ssc/StdLib/local/stddef.h:201: Error:
Unrecognized opcode: `typedef'
/opt/hardhat/devkit/ppc/405/target/usr/include/bits/stat.h:38: Error:
Unrecognized opcode: `__dev_t'
/home/jgarcia/Desktop/kernel/ssc/basic/services/include/ppcbslit.h:164:
Error: Unrecognized opcode: `int'
/opt/hardhat/devkit/ppc/405/target/usr/include/unistd.h:688: Error:
Unrecognized opcode: `extern'

This is because you include C header files in assember code. You must
not do that.

  --> I found a way to prevent those errors... I put all my #define that
I need in my assembler file. But you'll understand that it's a very
restrictive way of programming and I'd like to find a better solution
cause I'm talkin' about a hundred of #define...so...

If you have the C includes in one of your private header  files,  you
can put a "#ifndef __ASSEMBLY__" / "#endif" around them.

Otherwise just clean up your code and don't use  C  headers  in  your
assembler file.

Best regards,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
Landing: a controlled mid-air collision with a planet.

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