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    Subject[PATCH v9 15/17] kernel: add support for .init_array.* constructors
    Date
    KASan uses constructors for initializing redzones for global
    variables. Actually KASan doesn't need priorities for constructors,
    so they were removed from GCC 5.0, but GCC 4.9.2 still generates
    constructors with priorities.

    Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com>
    ---
    include/asm-generic/vmlinux.lds.h | 1 +
    scripts/module-common.lds | 3 +++
    2 files changed, 4 insertions(+)

    diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
    index bee5d68..ac78910 100644
    --- a/include/asm-generic/vmlinux.lds.h
    +++ b/include/asm-generic/vmlinux.lds.h
    @@ -478,6 +478,7 @@
    #define KERNEL_CTORS() . = ALIGN(8); \
    VMLINUX_SYMBOL(__ctors_start) = .; \
    *(.ctors) \
    + *(SORT(.init_array.*)) \
    *(.init_array) \
    VMLINUX_SYMBOL(__ctors_end) = .;
    #else
    diff --git a/scripts/module-common.lds b/scripts/module-common.lds
    index 0865b3e..01c5849 100644
    --- a/scripts/module-common.lds
    +++ b/scripts/module-common.lds
    @@ -16,4 +16,7 @@ SECTIONS {
    __kcrctab_unused : { *(SORT(___kcrctab_unused+*)) }
    __kcrctab_unused_gpl : { *(SORT(___kcrctab_unused_gpl+*)) }
    __kcrctab_gpl_future : { *(SORT(___kcrctab_gpl_future+*)) }
    +
    + . = ALIGN(8);
    + .init_array : { *(SORT(.init_array.*)) *(.init_array) }
    }
    --
    2.2.1


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