On Tue, Oct 23, 2007 at 08:50:23PM -0400, Jarod Wilson wrote:
> Chuck Ebbert wrote:
> > On 10/23/2007 06:28 PM, Dave Jones wrote:
> >> > Are the addresses in System.map accurate? On the F7 2.6.23 kernel,
> >> > I had to subtract 0x400000 and add 0x1000000 to the address in an
> >> > oops message to get an address to use with eu-addr2line.
> >>
> >> Relocatable kernel is another thing that really screws with this.
> >>
> >
> > CONFIG_RELOCATABLE=y
> > CONFIG_PHYSICAL_ALIGN=0x400000
> > CONFIG_PHYSICAL_START=0x1000000
> >
> > Address in oops was c04622db.
> >
> > I had to use "eu-addr2line -e vmlinux 0xc10622db"
> >
> > And objdump just flat refuses to show line number information
> > from vmlinux containing debug info. (But on Fedora 8 it will.)
>
> I vaguely recall seeing a bug about this one, and I thought the solution
> was to set _ALIGH and _START to the same value, but these are only vague
> recollections...
If CONFIG_PHYSICAL_START is equal to or less than CONFIG_PHYSICAL_ALIGN
then all is well.
Dave