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| author | Masahiro Yamada <masahiroy@kernel.org> | 2022-12-11 03:46:47 +0100 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2022-12-13 14:21:14 +0100 |
| commit | fccb3d3eda8d19b893e1fd18e8c70b78784b2a72 (patch) | |
| tree | c7685ee943ebd45f5ce0b34c720393ab3311fca8 /arch | |
| parent | Documentation: raise minimum supported version of binutils to 2.25 (diff) | |
| download | linux-fccb3d3eda8d19b893e1fd18e8c70b78784b2a72.tar.xz linux-fccb3d3eda8d19b893e1fd18e8c70b78784b2a72.zip | |
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 $(intcmp ...) must not be empty. To avoid
the syntax error, I appended '0' to them. Fortunately, '00' is treated
as '0'. This is needed because CONFIG options may expand to an empty
string when the kernel configuration is not included.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com> # RISC-V
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/riscv/Makefile | 2 | ||||
| -rw-r--r-- | arch/x86/Makefile | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile index 0d13b597cb55..faf2c2177094 100644 --- a/arch/riscv/Makefile +++ b/arch/riscv/Makefile @@ -37,7 +37,7 @@ else endif ifeq ($(CONFIG_LD_IS_LLD),y) -ifeq ($(shell test $(CONFIG_LLD_VERSION) -lt 150000; echo $$?),0) +ifeq ($(call test-lt, $(CONFIG_LLD_VERSION), 150000),y) KBUILD_CFLAGS += -mno-relax KBUILD_AFLAGS += -mno-relax ifndef CONFIG_AS_IS_LLVM diff --git a/arch/x86/Makefile b/arch/x86/Makefile index 415a5d138de4..e72c7a49cd59 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -211,7 +211,7 @@ endif KBUILD_LDFLAGS += -m elf_$(UTS_MACHINE) ifdef CONFIG_LTO_CLANG -ifeq ($(shell test $(CONFIG_LLD_VERSION) -lt 130000; echo $$?),0) +ifeq ($(call test-lt, $(CONFIG_LLD_VERSION), 130000),y) KBUILD_LDFLAGS += -plugin-opt=-stack-alignment=$(if $(CONFIG_X86_32),4,8) endif endif |