[U-Boot] [PATCH] script: Make the get_default_envs.sh script working with newest u-boot

[Lukasz Majewski]

Hi Tuomas,

> On Wed, 14 Feb 2018 09:50:17 +0100
> Lukasz Majewski <lukma at denx.de> wrote:
> 
> > On Wed, 14 Feb 2018 03:25:58 +0200
> > Tuomas Tynkkynen <tuomas at tuxera.com> wrote:
> >   
> > > Hi,
> > > 
> > > On Tue, 13 Feb 2018 23:01:13 +0100
> > > Lukasz Majewski <lukma at denx.de> wrote:
> > >   
> > > > This commit fixes several issues:
> > > > 
> > > > - After moving env related code to ./env directory the
> > > > env_common.o file is no longer present in the system (has been
> > > > replaced with built-in.o).
> > > > 
> > > > - Use ${OBJCOPY} if available, fallback to system default's
> > > > objcopy if not present.
> > > > 
> > > > - Extend the script to accept different build directory than
> > > > current one. It is extremely handy with OE usage, where source
> > > > code is separated from build.
> > > > 
> > > > Signed-off-by: Lukasz Majewski <lukma at denx.de>
> > > > ---
> > > > 
> > > >  scripts/get_default_envs.sh | 19 ++++++++++++++-----
> > > >  1 file changed, 14 insertions(+), 5 deletions(-)
> > > > 
> > > > diff --git a/scripts/get_default_envs.sh
> > > > b/scripts/get_default_envs.sh index 7955db60e5..bbb6d0a6ef
> > > > 100755 --- a/scripts/get_default_envs.sh
> > > > +++ b/scripts/get_default_envs.sh
> > > > @@ -6,16 +6,24 @@
> > > >  #
> > > >  
> > > >  # This file extracts default envs from built u-boot
> > > > -# usage: get_default_envs.sh > u-boot-env-default.txt
> > > > +# usage: get_default_envs.sh [build dir] >
> > > > u-boot-env-default.txt set -ue
> > > >  
> > > > -ENV_OBJ_FILE="env_common.o"
> > > > +: "${OBJCOPY:=objcopy}"    
> > > 
> > > Maybe "${CROSS_COMPILE}objcopy" would be a better default as
> > > that's what the build system uses.  
> > 
> > Unfortunately not with OE builds. In OE, the OBJCOPY is set to arm
> > specific objcopy.
> > 
> > With fallback (objcopy) from your local machine - it depends if it
> > supports multi arch or not.  
> 
> No, I meant that instead of having a fallback of "objcopy", have a 
> fallback of "${CROSS_COMPILE}objcopy". I.e. squashing this change:
> 
> diff --git a/scripts/get_default_envs.sh b/scripts/get_default_envs.sh
> index 3e532d12c4..184cc19ab7 100755
> --- a/scripts/get_default_envs.sh
> +++ b/scripts/get_default_envs.sh
> @@ -9,7 +9,7 @@
>  # usage: get_default_envs.sh [build dir] > u-boot-env-default.txt
>  set -ue
>  
> -: "${OBJCOPY:=objcopy}"
> +: "${OBJCOPY:=${CROSS_COMPILE:-}objcopy}"

Yes, you are obviously right. I've misunderstood you, sorry.

I will prepare v3 immediately.

Thanks.

>  
>  ENV_OBJ_FILE="built-in.o"
>  ENV_OBJ_FILE_COPY="copy_${ENV_OBJ_FILE}"
> 
> That way the script works out-of-the-box for people who do the usual
> 
> export CROSS_COMPILE=aarch64-linux-gnu- (or whatever)
> 
> when building U-Boot.




Best regards,

Lukasz Majewski

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