Re: [PATCH 1/1] kbuild: recursive build of external kernel modules

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On Fri, Aug 9, 2019 at 9:21 AM Shaun Tancheff <shaun@xxxxxxxxxxxx> wrote:
>
> When building a tree of external modules stage 2 fails
> silently as the root modules.order is empty.
>
> Modify the modules.order location to be fixed to the
> root when KBUILD_EXTMOD is specified and write all
> module paths to the single modules.order file.

Could you try v5.3-rc4 please?




> Signed-off-by: Shaun Tancheff <stancheff@xxxxxxxx>
> ---
>  Makefile               | 1 +
>  scripts/Makefile.build | 8 +++++++-
>  2 files changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/Makefile b/Makefile
> index 23cdf1f41364..a9964492f47e 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -1622,6 +1622,7 @@ $(module-dirs): prepare $(objtree)/Module.symvers
>
>  modules: $(module-dirs)
>         @$(kecho) '  Building modules, stage 2.';
> +       $(Q)$rm -f $(KBUILD_EXTMOD)/modules.order
>         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
>
>  PHONY += modules_install
> diff --git a/scripts/Makefile.build b/scripts/Makefile.build
> index 0d434d0afc0b..f9908b3d59e0 100644
> --- a/scripts/Makefile.build
> +++ b/scripts/Makefile.build
> @@ -64,7 +64,13 @@ builtin-target := $(obj)/built-in.a
>  endif
>
>  ifeq ($(CONFIG_MODULES)$(need-modorder),y1)
> +ifneq ($(KBUILD_EXTMOD),)
> +modorder-target := $(KBUILD_EXTMOD)/modules.order
> +modorder-add := >>
> +else
>  modorder-target := $(obj)/modules.order
> +modorder-add := >
> +endif
>  endif
>
>  mod-targets := $(patsubst %.o, %.mod, $(obj-m))
> @@ -423,7 +429,7 @@ endif # builtin-target
>  $(modorder-target): $(subdir-ym) FORCE
>         $(Q){ $(foreach m, $(modorder), \
>         $(if $(filter %/modules.order, $m), cat $m, echo $m);) :; } \
> -       | $(AWK) '!x[$$0]++' - > $@
> +       | $(AWK) '!x[$$0]++' - $(modorder-add) $@
>
>  #
>  # Rule to compile a set of .o files into one .a file (with symbol table)
> --
> 2.20.1
>


-- 
Best Regards
Masahiro Yamada



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