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    Subject[RFC/PATCH -next 04/21] x86: boot: vdso: disable instrumentation for code not linked with kernel
    Date
    To avoid build errors, compiler's instrumentation must be disabled
    for code not linked with kernel image.

    Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com>
    ---
    arch/x86/boot/Makefile | 2 ++
    arch/x86/boot/compressed/Makefile | 2 ++
    arch/x86/realmode/Makefile | 2 +-
    arch/x86/realmode/rm/Makefile | 1 +
    arch/x86/vdso/Makefile | 1 +
    5 files changed, 7 insertions(+), 1 deletion(-)

    diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
    index dbe8dd2..9204cc0 100644
    --- a/arch/x86/boot/Makefile
    +++ b/arch/x86/boot/Makefile
    @@ -14,6 +14,8 @@
    # Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode.
    # The number is the same as you would ordinarily press at bootup.

    +KASAN_SANITIZE := n
    +
    SVGA_MODE := -DSVGA_MODE=NORMAL_VGA

    targets := vmlinux.bin setup.bin setup.elf bzImage
    diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
    index 0fcd913..64a92b3 100644
    --- a/arch/x86/boot/compressed/Makefile
    +++ b/arch/x86/boot/compressed/Makefile
    @@ -4,6 +4,8 @@
    # create a compressed vmlinux image from the original vmlinux
    #

    +KASAN_SANITIZE := n
    +
    targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma \
    vmlinux.bin.xz vmlinux.bin.lzo vmlinux.bin.lz4

    diff --git a/arch/x86/realmode/Makefile b/arch/x86/realmode/Makefile
    index 94f7fbe..e02c2c6 100644
    --- a/arch/x86/realmode/Makefile
    +++ b/arch/x86/realmode/Makefile
    @@ -6,7 +6,7 @@
    # for more details.
    #
    #
    -
    +KASAN_SANITIZE := n
    subdir- := rm

    obj-y += init.o
    diff --git a/arch/x86/realmode/rm/Makefile b/arch/x86/realmode/rm/Makefile
    index 7c0d7be..2730d77 100644
    --- a/arch/x86/realmode/rm/Makefile
    +++ b/arch/x86/realmode/rm/Makefile
    @@ -6,6 +6,7 @@
    # for more details.
    #
    #
    +KASAN_SANITIZE := n

    always := realmode.bin realmode.relocs

    diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
    index 61b04fe..90daad6 100644
    --- a/arch/x86/vdso/Makefile
    +++ b/arch/x86/vdso/Makefile
    @@ -3,6 +3,7 @@
    #

    KBUILD_CFLAGS += $(DISABLE_LTO)
    +KASAN_SANITIZE := n

    VDSO64-$(CONFIG_X86_64) := y
    VDSOX32-$(CONFIG_X86_X32_ABI) := y
    --
    1.8.5.5


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