[Fwd: kernel compilation fails]

[Fwd: kernel compilation fails]

[Tomáš Vrána]

Hi,

did I just ask a real stupid question, or is my question unclear ? or... 
just give some feedback, please.

                   TIA, Tom


-------- Original Message --------
Subject: 	kernel compilation fails
Date: 	Wed, 15 Jun 2005 23:54:18 +0200
From: 	Tom Vrána <tom@voda.cz>
Organization: 	VODA IT consulting
To: 	linux-mips@linux-mips.org



Hi,

I am desperately trying to compile 2.4.30 mips kernel using uclibc 
buildroot gcc 3.3.4 It fails in the following manner:

mipsel-linux-gcc -D__KERNEL__ 
-I/store/devel/adm/linux-2.4.30-mipscvs-20050614/include -Wall 
-Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common 
-fomit-frame-pointer -I 
/store/devel/adm/linux-2.4.30-mipscvs-20050614/include/asm/gcc -G 0 
-mno-abicalls -fno-pic -pipe  -finline-limit=100000 -mabi=32 
-march=r4600 -Wa,-32 -Wa,-march=r4600 -Wa,-mips3 -Wa,--trap  -c 
mipsIRQ.S -o mipsIRQ.o
/store/devel/adm/linux-2.4.30-mipscvs-20050614/include/asm/hazards.h: 
Assembler messages:
/store/devel/adm/linux-2.4.30-mipscvs-20050614/include/asm/hazards.h:172: 
Error: unrecognized opcode `__asm__('
/store/devel/adm/linux-2.4.30-mipscvs-20050614/include/asm/hazards.h:173: 
Warning: rest of line ignored; first ignored character is `"'
/store/devel/adm/linux-2.4.30-mipscvs-20050614/include/asm/hazards.h:174: 
Warning: rest of line ignored; first ignored character is `"'
/store/devel/adm/linux-2.4.30-mipscvs-20050614/include/asm/hazards.h:175: 
Warning: rest of line ignored; first ignored character is `"'
/store/devel/adm/linux-2.4.30-mipscvs-20050614/include/asm/hazards.h:176: 
Warning: rest of line ignored; first ignored character is `"'
/store/devel/adm/linux-2.4.30-mipscvs-20050614/include/asm/hazards.h:177: 
Warning: rest of line ignored; first ignored character is `"'
/store/devel/adm/linux-2.4.30-mipscvs-20050614/include/asm/hazards.h:178: 
Warning: rest of line ignored; first ignored character is `"'

Looks like a stupid typo somewhere, but I lack experience to find. BTW, 
the some code is taken from 2.4.18 kernel...
Can anyone please tell me where to look ?

Thanks, Tom









-- 
 Tomas Vrana  <tom@voda.cz>
 --------------------------
 VODA IT consulting, Borkovany 48, 691 75
 http://www.voda.cz/
 phone: +420 519 419 416 mobile: +420 603 469 305 UIN: 105142752

Re:[Fwd: kernel compilation fails]

[Philippe De Swert]

Hello Tom,

> I am desperately trying to compile 2.4.30 mips kernel using uclibc 
> buildroot gcc 3.3.4 It fails in the following manner:

<snip> relevant error output </snip>
 
> 
> Looks like a stupid typo somewhere, but I lack experience to find. BTW, 
> the some code is taken from 2.4.18 kernel...
> Can anyone please tell me where to look ?

Basically 2.4.18 code is too old to compile as is with gcc 3.3.4. The
assembler code needs to be inlined with a different syntax. Just look at
similar files to see how it is done.

As a quick hint here is some code to show how it should look like.


        __asm__(".set\tmips3\n\t"
                "wait\n\t"
                ".set\tmips0");

Notice the \n and \t parts. You are probabely missing those.

Otherwise use an older compiler (2.95).

Cheers,

Philippe

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Re: [Fwd: kernel compilation fails]

[Ralf Baechle]

On Thu, Jun 16, 2005 at 10:54:43AM +0100, Philippe De Swert wrote:

> Basically 2.4.18 code is too old to compile as is with gcc 3.3.4. The
> assembler code needs to be inlined with a different syntax. Just look at
> similar files to see how it is done.

Not true.  Gcc 3.3 is probably even is the most commonly used compiler
with 2.4-based systems.  Builds with gcc 3.4 will fail for some 2.4
kernel configurations but at the very least throw loads of warnings.

> As a quick hint here is some code to show how it should look like.
> 
> 
>         __asm__(".set\tmips3\n\t"
>                 "wait\n\t"
>                 ".set\tmips0");
> 
> Notice the \n and \t parts. You are probabely missing those.

Actually more and more code it being formatted using tabs instead of the
\t escape sequence for readability.

  Ralf