• Masami Hiramatsu's avatar
    kprobes: Introduce NOKPROBE_SYMBOL() macro to maintain kprobes blacklist · 376e2424
    Masami Hiramatsu authored
    Introduce NOKPROBE_SYMBOL() macro which builds a kprobes
    blacklist at kernel build time.
    The usage of this macro is similar to EXPORT_SYMBOL(),
    placed after the function definition:
    Since this macro will inhibit inlining of static/inline
    functions, this patch also introduces a nokprobe_inline macro
    for static/inline functions. In this case, we must use
    NOKPROBE_SYMBOL() for the inline function caller.
    When CONFIG_KPROBES=y, the macro stores the given function
    address in the "_kprobe_blacklist" section.
    Since the data structures are not fully initialized by the
    macro (because there is no "size" information),  those
    are re-initialized at boot time by using kallsyms.
    Signed-off-by: default avatarMasami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
    Link: http://lkml.kernel.org/r/20140417081705.26341.96719.stgit@ltc230.yrl.intra.hitachi.co.jp
    Cc: Alok Kataria <akataria@vmware.com>
    Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
    Cc: Andrew Morton <akpm@linux-foundation.org>
    Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
    Cc: Arnd Bergmann <arnd@arndb.de>
    Cc: Christopher Li <sparse@chrisli.org>
    Cc: Chris Wright <chrisw@sous-sol.org>
    Cc: David S. Miller <davem@davemloft.net>
    Cc: Jan-Simon Möller <dl9pf@gmx.de>
    Cc: Jeremy Fitzhardinge <jeremy@goop.org>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Randy Dunlap <rdunlap@infradead.org>
    Cc: Rusty Russell <rusty@rustcorp.com.au>
    Cc: linux-arch@vger.kernel.org
    Cc: linux-doc@vger.kernel.org
    Cc: linux-sparse@vger.kernel.org
    Cc: virtualization@lists.linux-foundation.org
    Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
kprobes.txt 30.2 KB