• Nathan Lynch's avatar
    ARM: 8329/1: miscellaneous vdso infrastructure, preparation · 1713ce7c
    Nathan Lynch authored
    Define the layout of the data structure shared between kernel and
    userspace.
    
    Track the vdso address in the mm_context; needed for communicating
    AT_SYSINFO_EHDR to the ELF loader.
    
    Add declarations for arm_install_vdso; implementation is in a
    following patch.
    
    Define AT_SYSINFO_EHDR, and, if CONFIG_VDSO=y, report the vdso shared
    object address via the ELF auxiliary vector.
    
    Note - this adds the AT_SYSINFO_EHDR in a new user-visible header
    asm/auxvec.h; this is consistent with other architectures.
    Signed-off-by: default avatarNathan Lynch <nathan_lynch@mentor.com>
    Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
    1713ce7c
auxvec.h 29 Bytes