On Wed, Feb 12, 2020 at 10:18:26AM -0500, Steven Rostedt wrote:

On Wed, 12 Feb 2020 16:04:40 +0100
Peter Zijlstra [off-list ref] wrote:

quoted

quoted

This entire file is notrace:

 arch/x86/kernel/cpu/Makefile:

   CFLAGS_REMOVE_common.o = -pg  

Urgh, I hate it that that annotation is so hard to find :/ Also, there
seem to be various flavours of that Makefile magic around.

  CFLAGS_REMOVE_lockdep.o = $(CC_FLAGS_FTRACE)

is another variant I encountered.

Actually, that should be the only variant. That was added for various
archs, and should be used consistently throughout.

There's a clean up series for you ;-) (or whoever)

If I'm going to clean this up I'd remove the Makefile rules entirely.
I hate these Makefile rules, they make it entirely non-obvious what is
and is not being traced.