linux-kernel - [PATCH 0/4] tracing: export event trace and trace

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Message-Id: <20200720022117.9375-1-tingwei@codeaurora.org>
Date:   Mon, 20 Jul 2020 10:21:13 +0800
From:   Tingwei Zhang <tingwei@...eaurora.org>
To:     Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>
Cc:     Tingwei Zhang <tingwei@...eaurora.org>, tsoni@...eaurora.org,
        Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>,
        Mao Jinlong <jinlmao@...eaurora.org>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 0/4] tracing: export event trace and trace_marker

Ftrace has ability to export trace packets to other destionation. Currently,
only function trace can be exported. This series extends the support to
event trace and trace_maker. STM is one possible destination to export ftrace.
Use seperate channel for each CPU to avoid mixing up packets from different
CPUs together.

Tingwei Zhang (4):
  stm class: ftrace: change dependency to TRACING
  tracing: add trace_export support for event trace
  tracing: add trace_export support for trace_marker
  stm class: ftrace: use different channel accroding to CPU

 drivers/hwtracing/stm/Kconfig  |  2 +-
 drivers/hwtracing/stm/ftrace.c |  5 +++--
 kernel/trace/trace.c           | 26 +++++++++++++++-----------
 3 files changed, 19 insertions(+), 14 deletions(-)

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