[PATCH] Makefile: Do not call useless command 'true'

[Pali Rohár]

Hello! Could you please review this patch?

On Wednesday 04 November 2020 15:33:44 Pali Rohár wrote:
> Macro 'cmd_objcopy_uboot' currently does not work with passed empty command
> expanded from 'cmd_static_rela' and therefore dummy command 'true' is set
> in 'cmd_static_rela' to workaround this issue.
> 
> Eliminate it now by fixing 'cmd_objcopy_uboot' macro to work also with
> empty 'cmd_static_rela' macro and remove useless invocation of command
> 'true'.
> 
> Signed-off-by: Pali Rohár <pali at kernel.org>
> ---
>  Makefile | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
> 
> diff --git a/Makefile b/Makefile
> index b90fe8b865..aeb2c17a9b 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -885,7 +885,7 @@ cmd_static_rela = \
>  	tools/relocate-rela $(3) $(4) $$start $$end
>  else
>  quiet_cmd_static_rela =
> -cmd_static_rela = true
> +cmd_static_rela =
>  endif
>  
>  # Always append INPUTS so that arch config.mk's can add custom ones
> @@ -1312,7 +1312,11 @@ endif
>  shell_cmd = { $(call echo-cmd,$(1)) $(cmd_$(1)); }
>  
>  quiet_cmd_objcopy_uboot = OBJCOPY $@
> +ifdef cmd_static_rela
>  cmd_objcopy_uboot = $(cmd_objcopy) && $(call shell_cmd,static_rela,$<,$@,$(CONFIG_SYS_TEXT_BASE)) || { rm -f $@; false; }
> +else
> +cmd_objcopy_uboot = $(cmd_objcopy)
> +endif
>  
>  u-boot-nodtb.bin: u-boot FORCE
>  	$(call if_changed,objcopy_uboot)
> -- 
> 2.20.1
>