On Sat, Jul 17, 2010 at 5:41 AM, Mulyadi Santosa
<mulyadi.santosa@xxxxxxxxx> wrote:
> Hi Bob..
>
> On Sat, Jul 17, 2010 at 02:08, Bob Beers <bob.beers@xxxxxxxxx> wrote:
>> Hmmm, It looks lilke a pretty standard Makefile:
>>
>> -----------------------8<-------------------
>> CC=gcc
>> VER=`uname -r`
>> SRCREF?=/lib/modules/$(VER)/build
>> INSTALLDIR=/lib/modules/$(VER)/kernel/net
>
>
> It's something like what you see in arch/avr32/kernel/vmlinux.lds.S.
> To quote some:
> SECTIONS
> {
> . = CONFIG_ENTRY_ADDRESS;
> .init : AT(ADDR(.init) - LOAD_OFFSET) {
> _stext = .;
> __init_begin = .;
> _sinittext = .;
> *(.text.reset)
> INIT_TEXT
> /*
> * .exit.text is discarded at runtime, not
> * link time, to deal with references from
> * __bug_table
> */
> EXIT_TEXT
Hi Mulyadi, and list,
First, sorry for posting last exchange off-list.
I didn't intend to (gmail default is 'reply', not 'reply-all',
but I usually remember to pick the right one). I don't
believe it added a whole lot to the progression of the
thread, so I won't bother to include it here.
Anyway, back to the topic. I don't think there are any special
linker tricks in this code. I have compiled other out of tree
drivers on occasion, but I have _never_ seen these warnings
before.
But I guess that the driver code _is_ violating the principle 'don't
call __init code from non-__init code' somewhere. I further
suppose that the information in the warnings should give me
some clue about where that violation occurs.
For example:
WARNING: vmlinux - Section mismatch: reference to
.init.text:start_kernel from .text between 'is386' (at offset
0xc0401166) and 'check_x87'
The driver code (directly) calls neither 'is386' nor 'check_x87'.
The only part that looks promising is the parenthetical offset
expression. So, does this "(at offset 0xc0401166)" point to a
location in the driver code that is calling some piece of kernel
__init code? or possibly the location of the __init code in the
kernel that is being referenced by some part of the driver code?
Thanks,
-Bob
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