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103 lines
3.3 KiB
C
103 lines
3.3 KiB
C
/***********************************************************************
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*
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* Copyright (c) 2006-2007 Broadcom Corporation
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* All Rights Reserved
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*
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* <:label-BRCM:2011:DUAL/GPL:standard
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*
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* Unless you and Broadcom execute a separate written software license
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* agreement governing use of this software, this software is licensed
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* to you under the terms of the GNU General Public License version 2
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* (the "GPL"), available at http://www.broadcom.com/licenses/GPLv2.php,
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* with the following added to such license:
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*
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* As a special exception, the copyright holders of this software give
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* you permission to link this software with independent modules, and
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* to copy and distribute the resulting executable under terms of your
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* choice, provided that you also meet, for each linked independent
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* module, the terms and conditions of the license of that module.
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* An independent module is a module which is not derived from this
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* software. The special exception does not apply to any modifications
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* of the software.
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*
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* Not withstanding the above, under no circumstances may you combine
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* this software in any way with any other Broadcom software provided
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* under a license other than the GPL, without Broadcom's express prior
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* written consent.
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*
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:>
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*
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************************************************************************/
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/*!\file cms_ftrace.h
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* \brief Header file containing constant definitions and helper functions
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* related to Ftrace.
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*
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*/
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#ifndef CMS_FTRACE_H_
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#define CMS_FTRACE_H_
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/** The debugfs filesystem is mounted at /sys/kernel/debug by
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* /etc/rc3.d/S29trace
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* The directory that contains trace controls is in /sys/kernel/debug/tracing
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* Following the conventions described in kernel/Documentation/trace/ftrace.txt,
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* a symlink from /debug -> /sys/kernel/debug/trace is created by
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* userspace/public/apps/tracectl/Makefile
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*/
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#define FTRACE_MOUNTPOINT "/sys/kernel/debug"
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/** This is the file that controls tracing on or off.
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*/
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#define FTRACE_ON "/sys/kernel/debug/tracing/tracing_on"
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/** This is the file that allows userspace apps to insert a trace line
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*/
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#define FTRACE_INSERT_MARKER "/sys/kernel/debug/tracing/trace_marker"
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/** This is the file that selects which type of tracing we are doing
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*/
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#define FTRACE_CURRENT_TRACER "/sys/kernel/debug/tracing/current_tracer"
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/** This is the file that allows you to get and set current options.
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*/
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#define FTRACE_TRACE_OPTIONS "/sys/kernel/debug/tracing/trace_options"
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/** Enable tracing
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*/
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void cmsFtr_enable(void);
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/** Disable tracing
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*/
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void cmsFtr_disable(void);
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/** Insert a string in the current trace.
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* @param (IN) string to insert
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*/
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void cmsFtr_insertMarker(const char *s);
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/** Set the specified option in trace_option.
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* This function does not do error checking on the option
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* string, so make sure the option name is correct.
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*/
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void cmsFtr_setTraceOption(const char *s);
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/** Set the current trace type to function tracing.
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* Tracing must still be enabled/disabled separately.
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*/
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void cmsFtr_doFunctionTracing(void);
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/** Set the current trace type to function graph tracing.
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* Tracing must still be enabled/disabled separately.
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*/
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void cmsFtr_doFunctionGraphTracing(void);
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/** Set the current trace type to nothing.
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* This will also clear the trace buffer.
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*/
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void cmsFtr_doNopTracing(void);
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#endif /* CMS_FTRACE_H_ */
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