[U-Boot] [PATCH] arm: Enable -ffunction-sections / -fdata-sections / --gc-sections

[Albert ARIBAUD <albert.u.boot@aribaud.net>]

Hi Tom,

On Thu, 25 Apr 2013 13:40:22 -0400, Tom Rini <trini@ti.com> wrote:

> While other architectures have enabled these gcc / ld options for some
> time on U-Boot itself, ARM has only been doing this on SPL.  Enable this
> on full U-Boot as well now.
> 
> Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
> Signed-off-by: Tom Rini <trini@ti.com>
> ---
>  arch/arm/config.mk         |    3 +++
>  arch/arm/cpu/ixp/config.mk |    4 ----
>  2 files changed, 3 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm/config.mk b/arch/arm/config.mk
> index 461899e..dc64160 100644
> --- a/arch/arm/config.mk
> +++ b/arch/arm/config.mk
> @@ -31,6 +31,9 @@ CONFIG_STANDALONE_LOAD_ADDR = 0xc100000
>  endif
>  endif
>  
> +LDFLAGS_FINAL += --gc-sections
> +PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
> +
>  # Support generic board on ARM
>  __HAVE_ARCH_GENERIC_BOARD := y
>  
> diff --git a/arch/arm/cpu/ixp/config.mk b/arch/arm/cpu/ixp/config.mk
> index b02e8af..fd3c29f 100644
> --- a/arch/arm/cpu/ixp/config.mk
> +++ b/arch/arm/cpu/ixp/config.mk
> @@ -31,10 +31,6 @@ PLATFORM_CPPFLAGS += -mbig-endian -march=armv5te -mtune=strongarm1100
>  PLATFORM_LDFLAGS += -EB
>  USE_PRIVATE_LIBGCC = yes
>  
> -# -fdata-sections triggers "section .bss overlaps section .rel.dyn" linker error
> -PLATFORM_RELFLAGS += -ffunction-sections
> -LDFLAGS_u-boot += --gc-sections
> -
>  # =========================================================================
>  #
>  # Supply options according to compiler version

Applied to u-boot-arm/master, thanks!

Amicalement,
-- 
Albert.