[PATCH v3 06/14] arm: cpu: start: arm64 does not support relocation

Sascha Hauer s.hauer at pengutronix.de
Tue Jun 28 00:02:45 PDT 2016


On Tue, Jun 28, 2016 at 09:01:14AM +0200, Raphaël Poggi wrote:
> 2016-06-28 8:50 GMT+02:00 Sascha Hauer <s.hauer at pengutronix.de>:
> > On Fri, Jun 24, 2016 at 02:23:53PM +0200, Raphael Poggi wrote:
> >> For now, the relocation is not supported in arm64, so
> >> enclosed call to "setup_c" with #if directive
> >>
> >> Signed-off-by: Raphael Poggi <poggi.raph at gmail.com>
> >> ---
> >>  arch/arm/cpu/start.c | 2 ++
> >>  1 file changed, 2 insertions(+)
> >>
> >> diff --git a/arch/arm/cpu/start.c b/arch/arm/cpu/start.c
> >> index e037d91..5051115 100644
> >> --- a/arch/arm/cpu/start.c
> >> +++ b/arch/arm/cpu/start.c
> >> @@ -151,7 +151,9 @@ __noreturn void barebox_non_pbl_start(unsigned long membase,
> >>               relocate_to_adr(barebox_base);
> >>       }
> >>
> >> +#if __LINUX_ARM_ARCH__ <= 7
> >>       setup_c();
> >> +#endif
> >
> > setup_c not only relocates the binary, it also clears the bss segment.
> > Where is this done on arm64?
> 
> It is not done...I forgot about that.
> 
> I will create a setupc_64.S, in the first time, this will only clear
> bss. Later, we could also add relocation support.

Ok, that should do it for now.

Sascha

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