linux-kernel - [PATCH v2 0/6] tracing: export event trace and trace

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20200726025931.30510-1-tingwei@codeaurora.org>
Date:   Sun, 26 Jul 2020 10:59:25 +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 v2 0/6] 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.

Change from v1:
All changes are suggested by Steven Rostedt.
User seperate flag to control function trace, event trace and trace mark.
Allocate channels according to num_possible_cpu() dynamically.
Move ftrace_exports routines up so all ftrace can use them.

Tingwei Zhang (6):
  stm class: ftrace: change dependency to TRACING
  tracing: add flag to control different traces
  tracing: add trace_export support for event trace
  tracing: add trace_export support for trace_marker
  stm class: ftrace: enable supported trace export flag
  stm class: ftrace: use different channel accroding to CPU

 drivers/hwtracing/stm/Kconfig  |   2 +-
 drivers/hwtracing/stm/ftrace.c |   6 +-
 include/linux/trace.h          |   7 +
 kernel/trace/trace.c           | 270 ++++++++++++++++++---------------
 4 files changed, 158 insertions(+), 127 deletions(-)

-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project