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Message-ID: <417D0131.2060704@timesys.com>
Date: Mon, 25 Oct 2004 09:35:45 -0400
From: john cooper <john.cooper@timesys.com>
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To: remi.colinet@free.fr
CC: Ingo Molnar <mingo@elte.hu>, Lee Revell <rlrevell@joe-job.com>,
        gene.heskett@verizon.net, linux-kernel@vger.kernel.org,
        Rui Nuno Capela <rncbc@rncbc.org>, Mark_H_Johnson@raytheon.com,
        "K.R. Foley" <kr@cybsft.com>, Bill Huey <bhuey@lnxw.com>,
        Adam Heath <doogie@debian.org>, Florian Schmidt <mista.tapas@gmx.net>,
        Thomas Gleixner <tglx@linutronix.de>,
        Michal Schmidt <xschmi00@stud.feec.vutbr.cz>,
        Fernando Pablo Lopez-Lezcano <nando@ccrma.stanford.edu>,
        Alexander Batyrshin <abatyrshin@ru.mvista.com>,
        john.cooper@timesys.com
Subject: Re: [patch] Real-Time Preemption, -RT-2.6.9-mm1-U10.2
References: <20041014234202.GA26207@elte.hu> <20041022155048.GA16240@elte.hu> <20041022175633.GA1864@elte.hu> <200410221749.35306.gene.heskett@verizon.net> <1098482764.20495.2.camel@krustophenia.net> <20041023103620.GG30270@elte.hu> <417C49C6.1090300@timesys.com> <1098698969.417cd0d96dbde@imp2-q.free.fr>
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remi.colinet@free.fr wrote:

>Hi,
>
>
>>I'm seeing an odd build error in the -U10.3 patch to 2.6.9-mm1:
>>
>>    <snip>
>>
>>  AS      arch/i386/boot/compressed/head.o
>>  CC      arch/i386/boot/compressed/misc.o
>>  OBJCOPY arch/i386/boot/compressed/vmlinux.bin
>>BFD: Warning: Writing section `.bss' to huge (ie negative) file offset
>>0xc03ac000.
>>objcopy: arch/i386/boot/compressed/vmlinux.bin: File truncated
>>make[2]: *** [arch/i386/boot/compressed/vmlinux.bin] Error 1
>>make[1]: *** [arch/i386/boot/compressed/vmlinux] Error 2
>>make: *** [bzImage] Error 2
>>
>>[root@otaku linux-2.6.9]# objdump -f vmlinux
>>
>>vmlinux:     file format elf32-i386
>>architecture: i386, flags 0x00000112:
>>EXEC_P, HAS_SYMS, D_PAGED
>>start address 0x00100000
>>
>>This appears a result of changes in:
>>
>>   arch/i386/kernel/vmlinux.lds.S
>>
>>apparently for support of CONFIG_KERN_PHYS_OFFSET.
>>This causes the kernel LMA start address to
>>change from 0xc0100000 to 0x100000 and objcopy to
>>gag.  I rolled back to a 2.6.9-mm1 version of the
>>above linker map file and did get the kernel to
>>build and boot.
>>
>>Anyone else seeing this?  .config attached.
>>
>
>Yes.
>
>You probably need to upgrade your binutil package. The .bss LMA start address
>section is not dealt the way it should by ld.
>
>An other (bad) way to work around this compile problem is to force the .bss LMA
>start address with the following OBJCOPYFLAGS at objcopy time.
>
>OBJCOPYFLAGS := -O binary --change-section-lma .bss-0xc0000000 -R .note -R
>.comment -S
>
>Hope this help,
>Remi
>
Already tried a recent (2.15) version of objcopy
with the same results.  But LD was the issue.
BTW the offending version of binutils was 2.13.

Thanks!

-- 
john.cooper@timesys.com

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