diff options
| author | Masahiro Yamada | 2021-10-13 15:36:22 +0900 |
|---|---|---|
| committer | Masahiro Yamada | 2021-10-24 13:49:46 +0900 |
| commit | 8212f8986d311ccf6a72305e6bdbd814691701d6 (patch) | |
| tree | b1ac12d837ea8243e7986c79b05998aa4c16a1d7 /Documentation/kbuild | |
| parent | 10c6ae274fe29f732ca9bbcd7016e9827673c954 (diff) | |
kbuild: use more subdir- for visiting subdirectories while cleaning
Documentation/kbuild/makefiles.rst suggests to use "archclean" for
cleaning arch/$(SRCARCH)/boot/, but it is not a hard requirement.
Since commit d92cc4d51643 ("kbuild: require all architectures to have
arch/$(SRCARCH)/Kbuild"), we can use the "subdir- += boot" trick for
all architectures. This can take advantage of the parallel option (-j)
for "make clean".
I also cleaned up the comments in arch/$(SRCARCH)/Makefile. The "archdep"
target no longer exists.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Diffstat (limited to 'Documentation/kbuild')
| -rw-r--r-- | Documentation/kbuild/makefiles.rst | 17 |
1 files changed, 2 insertions, 15 deletions
diff --git a/Documentation/kbuild/makefiles.rst b/Documentation/kbuild/makefiles.rst index db3af0b45baf..b008b90b92c9 100644 --- a/Documentation/kbuild/makefiles.rst +++ b/Documentation/kbuild/makefiles.rst @@ -1050,22 +1050,9 @@ is not sufficient this sometimes needs to be explicit. The above assignment instructs kbuild to descend down in the directory compressed/ when "make clean" is executed. -To support the clean infrastructure in the Makefiles that build the -final bootimage there is an optional target named archclean: - - Example:: - - #arch/x86/Makefile - archclean: - $(Q)$(MAKE) $(clean)=arch/x86/boot - -When "make clean" is executed, make will descend down in arch/x86/boot, -and clean as usual. The Makefile located in arch/x86/boot/ may use -the subdir- trick to descend further down. - Note 1: arch/$(SRCARCH)/Makefile cannot use "subdir-", because that file is -included in the top level makefile, and the kbuild infrastructure -is not operational at that point. +included in the top level makefile. Instead, arch/$(SRCARCH)/Kbuild can use +"subdir-". Note 2: All directories listed in core-y, libs-y, drivers-y and net-y will be visited during "make clean". |