Thread (12 messages) 12 messages, 4 authors, 2021-03-25

Re: [PATCH] tee: optee: add invoke_fn tracepoints

From: Steven Rostedt <rostedt@goodmis.org>
Date: 2021-03-24 14:54:23
Also in: lkml, op-tee

On Wed, 24 Mar 2021 07:48:53 -0700
Guenter Roeck [off-list ref] wrote:
On Wed, Mar 24, 2021 at 07:34:07AM -0700, Guenter Roeck wrote:
quoted
On Wed, Feb 10, 2021 at 02:44:09PM +0800, Jisheng Zhang wrote:  
quoted
Add tracepoints to retrieve information about the invoke_fn. This would
help to measure how many invoke_fn are triggered and how long it takes
to complete one invoke_fn call.

Signed-off-by: Jisheng Zhang <redacted>  
arm64:defconfig:

make-arm64 -j drivers/tee/optee/call.o
  CALL    scripts/atomic/check-atomics.sh
  CALL    scripts/checksyscalls.sh
  CC      drivers/tee/optee/call.o
In file included from drivers/tee/optee/optee_trace.h:67,
                 from drivers/tee/optee/call.c:18:
./include/trace/define_trace.h:95:42: fatal error: ./optee_trace.h: No such file or directory
   95 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
      |                                          ^
compilation terminated.
  
The problem also affects arm:imx_v6_v7_defconfig.
I think it affects everything. The problem is that the
drivers/tee/optee/Makefile needs to be updated with:

CFLAGS_call.o := -I$(src)

otherwise the compiler wont know how to find the path to optee_tree.h.

This is described in:

   samples/trace_events/Makefile

-- Steve

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