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    Subject[PATCH 19/23] x86, gcc-4.6: Use gcc -m options when building vdso
    2.6.27.58-stable review patch.  If anyone has any objections, please let us know.

    ------------------

    From: H. Peter Anvin <hpa@linux.intel.com>

    commit de2a8cf98ecdde25231d6c5e7901e2cffaf32af9 upstream.

    The vdso Makefile passes linker-style -m options not to the linker but
    to gcc. This happens to work with earlier gcc, but fails with gcc
    4.6. Pass gcc-style -m options, instead.

    Note: all currently supported versions of gcc supports -m32, so there
    is no reason to conditionalize it any more.

    Reported-by: H. J. Lu <hjl.tools@gmail.com>
    Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
    LKML-Reference: <tip-*@git.kernel.org>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

    Index: longterm-2.6.27/arch/x86/vdso/Makefile
    ===================================================================
    --- longterm-2.6.27.orig/arch/x86/vdso/Makefile 2011-01-29 11:19:14.676064283 +0100
    +++ longterm-2.6.27/arch/x86/vdso/Makefile 2011-01-29 11:27:24.890063749 +0100
    @@ -25,7 +25,7 @@

    export CPPFLAGS_vdso.lds += -P -C

    -VDSO_LDFLAGS_vdso.lds = -m elf_x86_64 -Wl,-soname=linux-vdso.so.1 \
    +VDSO_LDFLAGS_vdso.lds = -m64 -Wl,-soname=linux-vdso.so.1 \
    -Wl,-z,max-page-size=4096 -Wl,-z,common-page-size=4096

    $(obj)/vdso.o: $(src)/vdso.S $(obj)/vdso.so
    @@ -69,7 +69,7 @@
    vdso32-images = $(vdso32.so-y:%=vdso32-%.so)

    CPPFLAGS_vdso32.lds = $(CPPFLAGS_vdso.lds)
    -VDSO_LDFLAGS_vdso32.lds = -m elf_i386 -Wl,-soname=linux-gate.so.1
    +VDSO_LDFLAGS_vdso32.lds = -m32 -Wl,-soname=linux-gate.so.1

    # This makes sure the $(obj) subdirectory exists even though vdso32/
    # is not a kbuild sub-make subdirectory.



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