kprobes: Introduce NOKPROBE_SYMBOL() macro to maintain kprobes blacklist

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:

  NOKPROBE_SYMBOL(function);

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: Masami Hiramatsu <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Cc: Alok Kataria <[email protected]>
Cc: Ananth N Mavinakayanahalli <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Anil S Keshavamurthy <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Christopher Li <[email protected]>
Cc: Chris Wright <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Jan-Simon Möller <[email protected]>
Cc: Jeremy Fitzhardinge <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Randy Dunlap <[email protected]>
Cc: Rusty Russell <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Ingo Molnar <[email protected]>

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