From fccb3d3eda8d19b893e1fd18e8c70b78784b2a72 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Sun, 11 Dec 2022 11:46:47 +0900 Subject: kbuild: add test-{ge,gt,le,lt} macros GNU Make 4.4 introduced $(intcmp ...), which is useful to compare two integers without forking a new process. Add test-{ge,gt,le,lt} macros, which work more efficiently with GNU Make >= 4.4. For older Make versions, they fall back to the 'test' shell command. The first two parameters to $(intcmp ...) must not be empty. To avoid the syntax error, I appended '0' to them. Fortunately, '00' is treated as '0'. This is needed because CONFIG options may expand to an empty string when the kernel configuration is not included. Signed-off-by: Masahiro Yamada Acked-by: Palmer Dabbelt # RISC-V Reviewed-by: Nathan Chancellor Reviewed-by: Nicolas Schier --- scripts/Makefile.compiler | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'scripts/Makefile.compiler') diff --git a/scripts/Makefile.compiler b/scripts/Makefile.compiler index 20d353dcabfb..3d8adfd34af1 100644 --- a/scripts/Makefile.compiler +++ b/scripts/Makefile.compiler @@ -63,11 +63,11 @@ cc-disable-warning = $(call try-run,\ # gcc-min-version # Usage: cflags-$(call gcc-min-version, 70100) += -foo -gcc-min-version = $(shell [ $(CONFIG_GCC_VERSION)0 -ge $(1)0 ] && echo y) +gcc-min-version = $(call test-ge, $(CONFIG_GCC_VERSION), $1) # clang-min-version # Usage: cflags-$(call clang-min-version, 110000) += -foo -clang-min-version = $(shell [ $(CONFIG_CLANG_VERSION)0 -ge $(1)0 ] && echo y) +clang-min-version = $(call test-ge, $(CONFIG_CLANG_VERSION), $1) # ld-option # Usage: KBUILD_LDFLAGS += $(call ld-option, -X, -Y) -- cgit v1.2.3