linux-kernel - Re: [BUG] : kernel/built-in.o(.text+0x18db4):kernel/workqueue.c:823: undefined reference to `.L343'

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Date:	Sat, 3 Nov 2007 00:04:14 +0000
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Kristoffer Ericson <kristoffer.ericson@...il.com>
Cc:	Sam Ravnborg <sam@...nborg.org>,
	Linux-arm <linux-arm-kernel@...ts.arm.linux.org.uk>,
	linux-main <linux-kernel@...r.kernel.org>
Subject: Re: [BUG] : kernel/built-in.o(.text+0x18db4):kernel/workqueue.c:823: undefined reference to `.L343'

On Sat, Nov 03, 2007 at 12:04:06AM -0700, Kristoffer Ericson wrote:
> On Fri, 2 Nov 2007 21:10:23 +0100
> Sam Ravnborg <sam@...nborg.org> wrote:
> 
> > On Fri, Nov 02, 2007 at 07:48:18PM +0000, Russell King - ARM Linux wrote:
> > > On Fri, Nov 02, 2007 at 08:29:31PM -0700, Kristoffer Ericson wrote:
> > > > Greetings,
> > > > 
> > > > Haven't found anyone reporting this. Taken from the very latest linux-2.6.git pull.
> > > > 
> > > > dnsdomainname: Unknown host
> > > >   UPD     include/linux/compile.h
> > > >   CC      init/version.o
> > > >   LD      init/built-in.o
> > > >   LD      .tmp_vmlinux1
> > > > kernel/built-in.o(.text+0x18db0): In function `destroy_workqueue':
> > > > kernel/workqueue.c:823: undefined reference to `.L342'
> > > > kernel/built-in.o(.text+0x18db4):kernel/workqueue.c:823: undefined reference to `.L343'
> > > > make: *** [.tmp_vmlinux1] Error 1
> > > 
> > > I think you'll have to look at the assembly produced for workqueue.c and
> > > work out why GCC is referencing an undefined label.  You can get the
> > > assembly for that by doing:
> > > 
> > > make ARCH=arm ...etc... kernel/workqueue.s
> > Or make that:
> > 
> > make ARCH=arm ...etc... kernel/workqueue.lst
> > 
> > to get intermixed C and assenbly
> > 
> > 	Sam
> arm-unknown-linux-gnu- kernel/workqueue.1strrent:)$ make ARCH=arm CROSS_COMPILE=a
> make: *** No rule to make target `kernel/workqueue.1st'.  Stop.

Suggest you use a better console font that allows you to identify
the difference between '1' (one) and 'l' (lima).

> arm-unknown-linux-gnu- kernel/workqueue.lstrrent:)$ make ARCH=arm CROSS_COMPILE=a
>   CHK     include/linux/version.h
> make[1]: `include/asm-arm/mach-types.h' is up to date.
>   CHK     include/linux/utsrelease.h
>   CALL    scripts/checksyscalls.sh
> <stdin>:1097:2: warning: #warning syscall fadvise64 not implemented
> <stdin>:1265:2: warning: #warning syscall migrate_pages not implemented
> <stdin>:1321:2: warning: #warning syscall pselect6 not implemented
> <stdin>:1325:2: warning: #warning syscall ppoll not implemented
> <stdin>:1365:2: warning: #warning syscall epoll_pwait not implemented
>   MKLST   kernel/workqueue.lst
> No System.map

You're not looking for a system.map file, but the workqueue.s or
workqueue.lst file to find out where this nonexistent label is
referenced.
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