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    Subject[PATCH v2 8/8] x86: remove unneeded section from the vDSO
    Date
    Some standard sections are not useful in the resulting binary.

    .gnu.warning.* is only interesting for the linker.

    .note.* may be discarded, except:
    .note.Linux which contains the Linux version
    .note.gnu.build-id which may be useful for identifying
    the vDSO

    Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
    ---
    arch/x86/vdso/vdso-layout.lds.S | 9 ++++++++-
    1 files changed, 8 insertions(+), 1 deletions(-)

    diff --git a/arch/x86/vdso/vdso-layout.lds.S b/arch/x86/vdso/vdso-layout.lds.S
    index 3b56e2f..b70c27d 100644
    --- a/arch/x86/vdso/vdso-layout.lds.S
    +++ b/arch/x86/vdso/vdso-layout.lds.S
    @@ -31,7 +31,8 @@ SECTIONS
    }

    .note : {
    - *(.note.*)
    + *(.note.Linux)
    + *(.note.gnu.build-id)
    } :text :note

    .eh_frame_hdr : {
    @@ -100,6 +101,12 @@ SECTIONS
    *(.altinstructions)
    *(.altinstr_replacement)
    }
    +
    + /* These sections are not useful to user-space */
    + /DISCARD/ : {
    + *(.gnu.warning.*)
    + *(.note.*)
    + }
    }

    /* This assert is triggered if the linker finds a section in one of its
    --
    1.6.0.2


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