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| author |   Dmitry Golovin <dima@golovin.in> | 2019-12-05 00:54:41 +0200 |
|---|---|---|
| committer |   Masahiro Yamada <masahiroy@kernel.org> | 2019-12-14 15:53:04 +0900 |
| commit | eefb8c124fd969e9a174ff2bedff86aa305a7438 (patch) | |
| tree | d0ad69354b51d63753d010e6a734b56a9c2c3a67 | |
| parent | kbuild: fix 'No such file or directory' warning when cleaning (diff) | |
| download | linux-dev-eefb8c124fd969e9a174ff2bedff86aa305a7438.tar.xz linux-dev-eefb8c124fd969e9a174ff2bedff86aa305a7438.zip | |
x86/boot: kbuild: allow readelf executable to be specified
Introduce a new READELF variable to top-level Makefile, so the name of
readelf binary can be specified.
Before this change the name of the binary was hardcoded to
"$(CROSS_COMPILE)readelf" which might not be present for every
toolchain.
This allows to build with LLVM Object Reader by using make parameter
READELF=llvm-readelf.
Link: https://github.com/ClangBuiltLinux/linux/issues/771
Signed-off-by: Dmitry Golovin <dima@golovin.in>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
| -rw-r--r-- | Makefile | 3 | ||||
| -rw-r--r-- | arch/x86/boot/compressed/Makefile | 2 |
2 files changed, 3 insertions, 2 deletions
@@ -414,6 +414,7 @@ STRIP = $(CROSS_COMPILE)strip OBJCOPY = $(CROSS_COMPILE)objcopy OBJDUMP = $(CROSS_COMPILE)objdump OBJSIZE = $(CROSS_COMPILE)size +READELF = $(CROSS_COMPILE)readelf PAHOLE = pahole LEX = flex YACC = bison @@ -472,7 +473,7 @@ GCC_PLUGINS_CFLAGS := CLANG_FLAGS := export ARCH SRCARCH CONFIG_SHELL BASH HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC -export CPP AR NM STRIP OBJCOPY OBJDUMP OBJSIZE PAHOLE LEX YACC AWK INSTALLKERNEL +export CPP AR NM STRIP OBJCOPY OBJDUMP OBJSIZE READELF PAHOLE LEX YACC AWK INSTALLKERNEL export PERL PYTHON PYTHON2 PYTHON3 CHECK CHECKFLAGS MAKE UTS_MACHINE HOSTCXX export KBUILD_HOSTCXXFLAGS KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS LDFLAGS_MODULE diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile index aa976adb7094..1dac210f7d44 100644 --- a/arch/x86/boot/compressed/Makefile +++ b/arch/x86/boot/compressed/Makefile @@ -103,7 +103,7 @@ vmlinux-objs-$(CONFIG_EFI_MIXED) += $(obj)/efi_thunk_$(BITS).o quiet_cmd_check_data_rel = DATAREL $@ define cmd_check_data_rel for obj in $(filter %.o,$^); do \ - ${CROSS_COMPILE}readelf -S $$obj | grep -qF .rel.local && { \ + $(READELF) -S $$obj | grep -qF .rel.local && { \ echo "error: $$obj has data relocations!" >&2; \ exit 1; \ } || true; \ |