Re: [PATCH V2 2/2] scripts: dtc: Build fdtoverlay and fdtdump tools

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On Thu, Jan 7, 2021 at 2:16 PM Viresh Kumar <viresh.kumar@xxxxxxxxxx> wrote:
>
> We will start building overlays for platforms soon in the kernel and
> would need these tools going forward. Lets start building them.


The commit log should explain how fdtdump and fdtoverlay are used
while building the kernel tree.







> Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
> ---
>  scripts/dtc/Makefile | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/scripts/dtc/Makefile b/scripts/dtc/Makefile
> index 4852bf44e913..c607980a5c17 100644
> --- a/scripts/dtc/Makefile
> +++ b/scripts/dtc/Makefile
> @@ -1,12 +1,18 @@
>  # SPDX-License-Identifier: GPL-2.0
>  # scripts/dtc makefile
>
> -hostprogs-always-$(CONFIG_DTC)         += dtc
> +hostprogs-always-$(CONFIG_DTC)         += dtc fdtdump fdtoverlay
>  hostprogs-always-$(CHECK_DT_BINDING)   += dtc
>
>  dtc-objs       := dtc.o flattree.o fstree.o data.o livetree.o treesource.o \
>                    srcpos.o checks.o util.o
>  dtc-objs       += dtc-lexer.lex.o dtc-parser.tab.o
> +fdtdump-objs   := fdtdump.o util.o
> +
> +libfdt_dir     = libfdt


Adding 'libfdt_dir' is not helpful except
increasing the amount of code.

Please hard-code 'libfdt'


> +libfdt-objs    := fdt.o fdt_ro.o fdt_wip.o fdt_sw.o fdt_rw.o fdt_strerror.o fdt_empty_tree.o fdt_addresses.o fdt_overlay.o
> +libfdt         = $(addprefix $(libfdt_dir)/,$(libfdt-objs))
> +fdtoverlay-objs        := $(libfdt) fdtoverlay.o util.o
>  # Source files need to get at the userspace version of libfdt_env.h to compile
>  HOST_EXTRACFLAGS += -I $(srctree)/$(src)/libfdt
> --
> 2.25.0.rc1.19.g042ed3e048af
>


--
Best Regards

Masahiro Yamada



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