[U-Boot] [PATCH 1/2] arm: implement ELF relocations
Heiko Schocher
hs at denx.de
Wed Oct 6 07:37:37 CEST 2010
Hello albert,
Albert Aribaud wrote:
> ELF relocation tables generated with linker option -pie can
> be used to fixup code and data in a single loop at relocation,
> removing the need for manual fixups anywhere else in the code.
>
> Signed-off-by: Albert Aribaud <albert.aribaud at free.fr>
> ---
> arch/arm/config.mk | 10 +-
> arch/arm/cpu/arm926ejs/start.S | 172 ++++++++++++++++-------------
> arch/arm/cpu/arm926ejs/u-boot.lds | 14 +++
> arch/arm/include/asm/u-boot-arm.h | 14 +-
> arch/arm/lib/board.c | 8 +-
> doc/README.arm-relocation | 222 +++++++------------------------------
> 6 files changed, 167 insertions(+), 273 deletions(-)
>
[...]
> diff --git a/arch/arm/cpu/arm926ejs/start.S b/arch/arm/cpu/arm926ejs/start.S
> index a960689..f97f8ac 100644
> --- a/arch/arm/cpu/arm926ejs/start.S
> +++ b/arch/arm/cpu/arm926ejs/start.S
[...]
> @@ -153,29 +151,21 @@ FIQ_STACK_START:
> IRQ_STACK_START_IN:
> .word 0x0badc0de
>
> -.globl _datarel_start
> -_datarel_start:
> - .word __datarel_start
> -
> -.globl _datarelrolocal_start
> -_datarelrolocal_start:
> - .word __datarelrolocal_start
> -
> -.globl _datarellocal_start
> -_datarellocal_start:
> - .word __datarellocal_start
> +.globl _datarel_start_ofs
> +_datarel_start_ofs:
> + .word __datarel_start - _start
>
> -.globl _datarelro_start
> -_datarelro_start:
> - .word __datarelro_start
> +.globl _datarelrolocal_start_ofs
> +_datarelrolocal_start_ofs:
> + .word __datarelrolocal_start - _start
We no longer need this __datarel* vars with your version
of relocation, please delete!
Thanks!
bye,
Heiko
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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