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| author | Masahiro Yamada <masahiroy@kernel.org> | 2024-02-17 08:55:03 +0300 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2024-02-23 15:06:21 +0300 |
| commit | bf48d9b756b91e3c656511fa8b63eaba1f50dbd0 (patch) | |
| tree | 3928ab4602a5d8aa755a15e94d458a48b94d61e6 /arch/x86/kvm/Makefile | |
| parent | ba3b759fb688c09cd9b09852d2728b012cf040ba (diff) | |
| download | linux-bf48d9b756b91e3c656511fa8b63eaba1f50dbd0.tar.xz | |
kbuild: change tool coverage variables to take the path relative to $(obj)
Commit 54b8ae66ae1a ("kbuild: change *FLAGS_<basetarget>.o to take the
path relative to $(obj)") changed the syntax of per-file compiler flags.
The situation is the same for the following variables:
OBJECT_FILES_NON_STANDARD_<basetarget>.o
GCOV_PROFILE_<basetarget>.o
KASAN_SANITIZE_<basetarget>.o
KMSAN_SANITIZE_<basetarget>.o
KMSAN_ENABLE_CHECKS_<basetarget>.o
UBSAN_SANITIZE_<basetarget>.o
KCOV_INSTRUMENT_<basetarget>.o
KCSAN_SANITIZE_<basetarget>.o
KCSAN_INSTRUMENT_BARRIERS_<basetarget>.o
The <basetarget> is the filename of the target with its directory and
suffix stripped.
This syntax comes into a trouble when two files with the same basename
appear in one Makefile, for example:
obj-y += dir1/foo.o
obj-y += dir2/foo.o
OBJECT_FILES_NON_STANDARD_foo.o := y
OBJECT_FILES_NON_STANDARD_foo.o is applied to both dir1/foo.o and
dir2/foo.o. This syntax is not flexbile enough to handle cases where
one of them is a standard object, but the other is not.
It is more sensible to use the relative path to the Makefile, like this:
obj-y += dir1/foo.o
OBJECT_FILES_NON_STANDARD_dir1/foo.o := y
obj-y += dir2/foo.o
OBJECT_FILES_NON_STANDARD_dir2/foo.o := y
To maintain the current behavior, I made adjustments to the following two
Makefiles:
- arch/x86/entry/vdso/Makefile, which compiles vclock_gettime.o, vgetcpu.o,
and their vdso32 variants.
- arch/x86/kvm/Makefile, which compiles vmx/vmenter.o and svm/vmenter.o
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Acked-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'arch/x86/kvm/Makefile')
| -rw-r--r-- | arch/x86/kvm/Makefile | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kvm/Makefile b/arch/x86/kvm/Makefile index 475b5fa917a6..a88bb14266b6 100644 --- a/arch/x86/kvm/Makefile +++ b/arch/x86/kvm/Makefile @@ -4,7 +4,8 @@ ccflags-y += -I $(srctree)/arch/x86/kvm ccflags-$(CONFIG_KVM_WERROR) += -Werror ifeq ($(CONFIG_FRAME_POINTER),y) -OBJECT_FILES_NON_STANDARD_vmenter.o := y +OBJECT_FILES_NON_STANDARD_vmx/vmenter.o := y +OBJECT_FILES_NON_STANDARD_svm/vmenter.o := y endif include $(srctree)/virt/kvm/Makefile.kvm |