Re: [PATCH 3/5] scripts/gdb: do not descend into scripts/gdb from scripts

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Hi Yamada-san,

On 19/02/2019 09:33, Masahiro Yamada wrote:
> Currently, Kbuild descends from scripts/Makefile to scripts/gdb/Makefile
> just for creating symbolic links, but it does not need to do it so early.
> 
> Merge the two descending paths to simplify the code.
> 
> Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
> ---
> 
>  Makefile                   | 2 +-
>  scripts/Makefile           | 3 +--
>  scripts/gdb/linux/Makefile | 9 +++------
>  3 files changed, 5 insertions(+), 9 deletions(-)
> 
> diff --git a/Makefile b/Makefile
> index 26dbcb7..a5762c6 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -1518,7 +1518,7 @@ $(DOC_TARGETS): scripts_basic FORCE
>  
>  PHONY += scripts_gdb
>  scripts_gdb: prepare
> -	$(Q)$(MAKE) $(build)=scripts/gdb/linux build_constants_py
> +	$(Q)$(MAKE) $(build)=scripts/gdb
>  
>  ifdef CONFIG_GDB_SCRIPTS
>  all: scripts_gdb
> diff --git a/scripts/Makefile b/scripts/Makefile
> index feb1f71..9d442ee 100644
> --- a/scripts/Makefile
> +++ b/scripts/Makefile
> @@ -39,7 +39,6 @@ build_unifdef: $(obj)/unifdef
>  subdir-$(CONFIG_GCC_PLUGINS) += gcc-plugins
>  subdir-$(CONFIG_MODVERSIONS) += genksyms
>  subdir-$(CONFIG_SECURITY_SELINUX) += selinux
> -subdir-$(CONFIG_GDB_SCRIPTS) += gdb
>  
>  # Let clean descend into subdirs
> -subdir-	+= basic dtc kconfig mod package
> +subdir-	+= basic dtc gdb kconfig mod package
> diff --git a/scripts/gdb/linux/Makefile b/scripts/gdb/linux/Makefile
> index aba23be..7545806 100644
> --- a/scripts/gdb/linux/Makefile
> +++ b/scripts/gdb/linux/Makefile
> @@ -14,11 +14,8 @@ quiet_cmd_gen_constants_py = GEN     $@
>  	$(CPP) -E -x c -P $(c_flags) $< > $@ ;\
>  	sed -i '1,/<!-- end-c-headers -->/d;' $@
>  
> -targets += constants.py
> -$(obj)/constants.py: $(SRCTREE)/$(obj)/constants.py.in FORCE
> +extra-y += constants.py
> +$(obj)/constants.py: $(src)/constants.py.in FORCE
>  	$(call if_changed_dep,gen_constants_py)
>  
> -build_constants_py: $(obj)/constants.py
> -	@:
> -
> -clean-files := *.pyc *.pyo $(if $(KBUILD_SRC),*.py) $(obj)/constants.py
> +clean-files := *.pyc *.pyo $(if $(KBUILD_SRC),*.py)


This looks like the generated file will no longer be cleaned on
distclean, if the build is 'in-tree'... Is that right? Or OK if so?

Perhaps I'm mis-understanding the "$(if $(KBUILD_SRC),*.py)" statement
intent?

As long as you're content with the result, and it's understood:

Reviewed-by: Kieran Bingham <kieran.bingham@xxxxxxxxxxxxxxxx>


-- 
Regards
--
Kieran



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