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

[Simon Glass]

Hi Pali,

On Fri, 15 Jan 2021 at 17:21, Pali Rohár <pali at kernel.org> wrote:
>
> 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
> >

I don't know much about that and your patch looks reasonable, but what
is the motivation? Is it a code clean-up or a bug?

Regards,
Simon