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Subject[PATCH 0/7] V2 add syscall tracepoints

hi,

The following is an implementation of Frederic's syscall tracer on top of
tracepoints. It adds the ability to toggle the entry/exit of each syscall
via the standard events/syscalls/syscall_blah/enable interface. The
implementation is done by adding 2 tracepoints. One on entry and one for exit.

I've tried to address all of the comments from the last posting...updates include:
-2/7: make arch_init_ftrace_syscalls static, removed locking, make patch bi-sectable
-3/7: rename DECLARE_TRACE_REG as DECLARE_TRACE_WITH_CALLBACK
-4/7: make mutex and counter static
-7/7: add event tracing for syscalls that take no args

thanks,

-Jason

arch/x86/include/asm/ftrace.h | 4 +-
arch/x86/kernel/ftrace.c | 31 +++++---
arch/x86/kernel/ptrace.c | 6 +-
include/linux/syscalls.h | 75 +++++++++++++++++-
include/linux/tracepoint.h | 29 ++++++-
include/trace/syscall.h | 37 +++++++---
kernel/trace/trace_events.c | 29 +++++---
kernel/trace/trace_syscalls.c | 172 +++++++++++++++++++----------------------
kernel/tracepoint.c | 38 +++++++++
9 files changed, 289 insertions(+), 132 deletions(-)



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