• Kai Germaschewski's avatar
    Module Sanity Check · 1d411b80
    Kai Germaschewski authored
    This patch, based on Rusty's implementation, adds a special section
    to vmlinux and all modules, which contain the kernel version
    string, values of some particularly important config options
    (SMP,preempt,proc family) and the gcc version.
    
    When inserting a module, the version string is checked against the
    kernel version string and loading is rejected if they don't match.
    
    The version string is actually added to the modules during the
    final .ko generation, so that a changed version string does only
    cause relinking, not recompilation, which is a major performance
    improvement over the old 2.4 way of doing things.
    1d411b80
vermagic.c 607 Bytes