Re: [RFC PATCH 8/8] ARM: vmlinux.lds: Setup correct entry point tophysical address

[Michal Simek]

On 06/18/2012 01:37 PM, Russell King - ARM Linux wrote:
> On Mon, Jun 18, 2012 at 01:30:11PM +0200, Michal Simek wrote:
> > linker script setups entry point to virtual address.
> >
> > Signed-off-by: Michal Simek<monstr@xxxxxxxxx>
> >
> > ---
> > Not sure what is the reason to setup entry point to virtual address.
> > ---
> >   arch/arm/kernel/vmlinux.lds.S |    4 +++-
> >   1 files changed, 3 insertions(+), 1 deletions(-)
> >
> > diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
> > index b996bc0..de43b01 100644
> > --- a/arch/arm/kernel/vmlinux.lds.S
> > +++ b/arch/arm/kernel/vmlinux.lds.S
> > @@ -39,7 +39,7 @@
> >   #endif
> >
> >   OUTPUT_ARCH(arm)
> > -ENTRY(stext)
> > +ENTRY(arm_start)
>
> stext etc better stay as the virtual address through this change.  The
> kernel makes use of all stext/etext etc symbols as virtual addresses.

I am not changing stext to physical address. Just elf entry point.
What's it reason to have entry point in virtual address space?

Thanks,
Michal


--
Michal Simek, Ing. (M.Eng)
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel 2.6 Microblaze Linux - http://www.monstr.eu/fdt/
Microblaze U-BOOT custodian
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