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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-05-28 18:21:59 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-05-29 03:31:19 +0900 |
| commit | e1cfdc0e72fc9ad7c04ad6329acb92876e062849 (patch) | |
| tree | f32ea4e4715c0559bba4d8cb9014b582d76f355e | |
| parent | 21c54b774744719c386fbdc829b0e7759edb8ece (diff) | |
| download | lwn-e1cfdc0e72fc9ad7c04ad6329acb92876e062849.tar.gz lwn-e1cfdc0e72fc9ad7c04ad6329acb92876e062849.zip | |
kconfig: add basic helper macros to scripts/Kconfig.include
Kconfig got text processing tools like we see in Make. Add Kconfig
helper macros to scripts/Kconfig.include like we collect Makefile
macros in scripts/Kbuild.include.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Ulf Magnusson <ulfalizer@gmail.com>
| -rw-r--r-- | Kconfig | 2 | ||||
| -rw-r--r-- | MAINTAINERS | 1 | ||||
| -rw-r--r-- | arch/x86/um/Kconfig | 2 | ||||
| -rw-r--r-- | scripts/Kconfig.include | 27 |
4 files changed, 32 insertions, 0 deletions
@@ -7,4 +7,6 @@ mainmenu "Linux/$(ARCH) $(KERNELVERSION) Kernel Configuration" comment "Compiler: $(CC_VERSION_TEXT)" +source "scripts/Kconfig.include" + source "arch/$(SRCARCH)/Kconfig" diff --git a/MAINTAINERS b/MAINTAINERS index b87723a6ef32..79decb12cfbf 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7639,6 +7639,7 @@ L: linux-kbuild@vger.kernel.org S: Maintained F: Documentation/kbuild/kconfig* F: scripts/kconfig/ +F: scripts/Kconfig.include KDUMP M: Dave Young <dyoung@redhat.com> diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig index a992f8e94887..9d529f22fd9d 100644 --- a/arch/x86/um/Kconfig +++ b/arch/x86/um/Kconfig @@ -3,6 +3,8 @@ mainmenu "User Mode Linux/$(SUBARCH) $(KERNELVERSION) Kernel Configuration" comment "Compiler: $(CC_VERSION_TEXT)" +source "scripts/Kconfig.include" + source "arch/um/Kconfig.common" menu "UML-specific options" diff --git a/scripts/Kconfig.include b/scripts/Kconfig.include new file mode 100644 index 000000000000..bf7c0c9fa3a4 --- /dev/null +++ b/scripts/Kconfig.include @@ -0,0 +1,27 @@ +# Kconfig helper macros + +# Convenient variables +comma := , +quote := " +squote := ' +empty := +space := $(empty) $(empty) +dollar := $ +right_paren := ) +left_paren := ( + +# $(if-success,<command>,<then>,<else>) +# Return <then> if <command> exits with 0, <else> otherwise. +if-success = $(shell,{ $(1); } >/dev/null 2>&1 && echo "$(2)" || echo "$(3)") + +# $(success,<command>) +# Return y if <command> exits with 0, n otherwise +success = $(if-success,$(1),y,n) + +# $(cc-option,<flag>) +# Return y if the compiler supports <flag>, n otherwise +cc-option = $(success,$(CC) -Werror $(1) -E -x c /dev/null -o /dev/null) + +# $(ld-option,<flag>) +# Return y if the linker supports <flag>, n otherwise +ld-option = $(success,$(LD) -v $(1)) |