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29 lines
941 B
29 lines
941 B
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _LINUX_TRACE_H |
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#define _LINUX_TRACE_H |
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#ifdef CONFIG_TRACING |
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/* |
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* The trace export - an export of Ftrace output. The trace_export |
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* can process traces and export them to a registered destination as |
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* an addition to the current only output of Ftrace - i.e. ring buffer. |
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* |
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* If you want traces to be sent to some other place rather than ring |
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* buffer only, just need to register a new trace_export and implement |
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* its own .write() function for writing traces to the storage. |
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* |
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* next - pointer to the next trace_export |
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* write - copy traces which have been delt with ->commit() to |
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* the destination |
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*/ |
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struct trace_export { |
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struct trace_export __rcu *next; |
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void (*write)(const void *, unsigned int); |
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}; |
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int register_ftrace_export(struct trace_export *export); |
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int unregister_ftrace_export(struct trace_export *export); |
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#endif /* CONFIG_TRACING */ |
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#endif /* _LINUX_TRACE_H */
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