1. 12 8月, 2009 7 次提交
    • J
      tracing: Raw_init() bailout in trace event register fail case · f744bd57
      Jason Baron 提交于
      Allow the return value of raw_init() trace event callback to bail us out
      of creating a trace event file, in case we fail to register our
      event.
      
      Also, we plan to return -ENOSYS for syscall events that don't match any
      syscalls listed in our arch tracing syscall table, we don't want to warn
      in that case, we just want this event to be invisible in debugfs and
      ignored.
      Signed-off-by: NJason Baron <jbaron@redhat.com>
      Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
      Cc: Jiaying Zhang <jiayingz@google.com>
      Cc: Martin Bligh <mbligh@google.com>
      Cc: Li Zefan <lizf@cn.fujitsu.com>
      Cc: Masami Hiramatsu <mhiramat@redhat.com>
      Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
      f744bd57
    • J
      tracing: Update FTRACE_SYSCALL_MAX · 9daa77e2
      Jason Baron 提交于
      update FTRACE_SYSCALL_MAX to the current number of syscalls
      
      FTRACE_SYSCALL_MAX is a temporary solution to get the number of
      syscalls supported by the arch until we find a more dynamic way
      to get this number.
      Signed-off-by: NJason Baron <jbaron@redhat.com>
      Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
      Cc: Jiaying Zhang <jiayingz@google.com>
      Cc: Martin Bligh <mbligh@google.com>
      Cc: Li Zefan <lizf@cn.fujitsu.com>
      Cc: Masami Hiramatsu <mhiramat@redhat.com>
      Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
      9daa77e2
    • J
      tracing: Add syscall tracepoints · a871bd33
      Jason Baron 提交于
      add two tracepoints in syscall exit and entry path, conditioned on
      TIF_SYSCALL_FTRACE. Supports the syscall trace event code.
      Signed-off-by: NJason Baron <jbaron@redhat.com>
      Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
      Cc: Jiaying Zhang <jiayingz@google.com>
      Cc: Martin Bligh <mbligh@google.com>
      Cc: Li Zefan <lizf@cn.fujitsu.com>
      Cc: Masami Hiramatsu <mhiramat@redhat.com>
      Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
      a871bd33
    • J
      tracing: Add DECLARE_TRACE_WITH_CALLBACK() macro · 63fbdab3
      Jason Baron 提交于
      Introduce a new 'DECLARE_TRACE_WITH_CALLBACK()' macro, so that
      tracepoints can associate an external register/unregister function.
      
      This prepares for the syscalls tracer conversion to trace events. We
      will need to perform arch level operations once a syscall event is
      turned on/off, such as TIF flags setting, hence the need of such
      specific callbacks.
      Signed-off-by: NJason Baron <jbaron@redhat.com>
      Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
      Cc: Jiaying Zhang <jiayingz@google.com>
      Cc: Martin Bligh <mbligh@google.com>
      Cc: Li Zefan <lizf@cn.fujitsu.com>
      Cc: Masami Hiramatsu <mhiramat@redhat.com>
      Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
      63fbdab3
    • J
      tracing: Call arch_init_ftrace_syscalls at boot · 066e0378
      Jason Baron 提交于
      Call arch_init_ftrace_syscalls at boot, so we can determine early the
      set of syscalls for the syscall trace events.
      Signed-off-by: NJason Baron <jbaron@redhat.com>
      Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
      Cc: Jiaying Zhang <jiayingz@google.com>
      Cc: Martin Bligh <mbligh@google.com>
      Cc: Li Zefan <lizf@cn.fujitsu.com>
      Cc: Masami Hiramatsu <mhiramat@redhat.com>
      Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
      066e0378
    • J
      tracing: Map syscall name to number · eeac19a7
      Jason Baron 提交于
      Add a new function to support translating a syscall name to number at
      runtime.
      This allows the syscall event tracer to map syscall names to number.
      Signed-off-by: NJason Baron <jbaron@redhat.com>
      Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
      Cc: Jiaying Zhang <jiayingz@google.com>
      Cc: Martin Bligh <mbligh@google.com>
      Cc: Li Zefan <lizf@cn.fujitsu.com>
      Cc: Masami Hiramatsu <mhiramat@redhat.com>
      Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
      eeac19a7
    • Z
      tracing: Rename set_tracer_flags()'s local variable trace_flags · 7770841e
      Zhaolei 提交于
      set_tracer_flags() have a local variable named trace_flags which has
      the same name than a global one in the same scope.
      This leads to confusion, using tracer_flags should be better by its
      meaning.
      
      Changelog:
      v1->v2: Simplified another patch in this patchset, no change in this
              patch.
      Signed-off-by: NZhao Lei <zhaolei@cn.fujitsu.com>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Li Zefan <lizf@cn.fujitsu.com>
      Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
      7770841e
  2. 11 8月, 2009 8 次提交
  3. 10 8月, 2009 19 次提交
  4. 09 8月, 2009 6 次提交