I am trying to install a LFS system with RTAI, I have built the Linux environment but am having trouble compiling the kernel. After patching the vanilla kernel and configuring it it refuses to build the kernel and throw up an assembely error message in procces.c about invalid opperand for instruction mov. I can however compile a normal vanilla kernel. What do i need to do to compile the RTAI kernel?

What part of the book are you at?

It sounds like it has something to do with your linux-libc-headers.
Did you install them?

I am at the chapter 8 of the LFS manual and i did install the linux-libc headers

The problem may lie in Linux-libc-headers or GCC the site said it was tested with GCC 3.2.x.
(I doubt it's Binutils, Glibc, or the patch it self but I guess it's possible)

What cpu do you have?
(that might have something to do with it)

It would help If you copied the *exact error message and posted it.

Unfortunately the computer is a work computer which i won't be sble to access till after the new year. I can tell you the cpu is a coppermine p3. Also it is able to compile the vanilla linux kernel without any problems. It was only after the adeos hal patch was applied that I had trouble compiling the kernel.

Another Question:
What version of the LFS-Book are you using?

Did you deviate from it at all? *Include anything that you did for RTAI.

I am using the latest version of the Linux from Scratch Book: 6.0 and followed the instructions from the website exactly as it said so. The only alterations I made was at the end where I installed Comedi, Xorg and efltk and applied the Adeos hal patch to the vanilla kernel.

Okay the error message im getting from the compilation is

CHK include/linux/version.h
make[1]: `arch/i386/kernel/asm-offsets.s' is up to date.
CHK include/asm-i386/asm_offsets.h
CHK include/linux/compile.h
UPD include/linux/compile.h
CC init/version.o
LD init/built-in.o
CHK usr/initramfs_list
CC arch/i386/kernel/process.o
{standard input}: Assembler messages:
{standard input}:880: Error: suffix or operands invalid for `mov'
{standard input}:881: Error: suffix or operands invalid for `mov'
{standard input}:1087: Error: suffix or operands invalid for `mov'
{standard input}:1088: Error: suffix or operands invalid for `mov'
{standard input}:1155: Error: suffix or operands invalid for `mov'
{standard input}:1156: Error: suffix or operands invalid for `mov'
{standard input}:1235: Error: suffix or operands invalid for `mov'
{standard input}:1236: Error: suffix or operands invalid for `mov'
{standard input}:1312: Error: suffix or operands invalid for `mov'
{standard input}:1324: Error: suffix or operands invalid for `mov'
make[1]: *** [arch/i386/kernel/process.o] Error 1
make: *** [arch/i386/kernel] Error 2

Im not sure if that is of any help

The linux-2.6-seg-5.patch seemed to help this person: Compilation errors 2.6.9 in process.c

Let me know if it helps.

Okay that fixed that problem, but alas it still won't compile. It now spits out:

CHK include/linux/version.h
make[1]: `arch/i386/kernel/asm-offsets.s' is up to date.
CHK include/asm-i386/asm_offsets.h
CHK include/linux/compile.h
CHK usr/initramfs_list
CC adeos/x86.o
{standard input}: Assembler messages:
{standard input}:401: Error: suffix or operands invalid for `mov'
{standard input}:490: Error: suffix or operands invalid for `mov'
{standard input}:534: Error: suffix or operands invalid for `mov'
{standard input}:578: Error: suffix or operands invalid for `mov'
{standard input}:622: Error: suffix or operands invalid for `mov'
{standard input}:666: Error: suffix or operands invalid for `mov'
{standard input}:800: Error: suffix or operands invalid for `mov'
{standard input}:934: Error: suffix or operands invalid for `mov'
{standard input}:978: Error: suffix or operands invalid for `mov'
{standard input}:1022: Error: suffix or operands invalid for `mov'
{standard input}:1066: Error: suffix or operands invalid for `mov'
{standard input}:1110: Error: suffix or operands invalid for `mov'
{standard input}:1154: Error: suffix or operands invalid for `mov'
{standard input}:1198: Error: suffix or operands invalid for `mov'
{standard input}:1242: Error: suffix or operands invalid for `mov'
{standard input}:1286: Error: suffix or operands invalid for `mov'
{standard input}:1330: Error: suffix or operands invalid for `mov'
{standard input}:1374: Error: suffix or operands invalid for `mov'
{standard input}:1418: Error: suffix or operands invalid for `mov'
make[1]: *** [adeos/x86.o] Error 1
make: *** [adeos] Error 2

Okay, thanks for that. I reinstalled binutils and that seems to have fixed the problem now

Hi,

I have the same bug with adeos/x86 compilation, but I try to reinstall binutil devel and source codes and don't fix it. Can you explain step by step how do you fix? I'm novice in kernel and rtai compilation.

Thanks.
Gelson

My configs

Kubuntu 7.04
GCC 3.4
kernel-source 2.6.10 (patched: rtai, linux-2.6-seg-5)
rtai 3.2