1 /* SPDX-License-Identifier: GPL-2.0 */
5 #define TRACE_EXPORT_FUNCTION BIT(0)
6 #define TRACE_EXPORT_EVENT BIT(1)
7 #define TRACE_EXPORT_MARKER BIT(2)
10 * The trace export - an export of Ftrace output. The trace_export
11 * can process traces and export them to a registered destination as
12 * an addition to the current only output of Ftrace - i.e. ring buffer.
14 * If you want traces to be sent to some other place rather than ring
15 * buffer only, just need to register a new trace_export and implement
16 * its own .write() function for writing traces to the storage.
18 * next - pointer to the next trace_export
19 * write - copy traces which have been delt with ->commit() to
21 * flags - which ftrace to be exported
24 struct trace_export __rcu *next;
25 void (*write)(struct trace_export *, const void *, unsigned int);
33 int register_ftrace_export(struct trace_export *export);
34 int unregister_ftrace_export(struct trace_export *export);
36 void trace_printk_init_buffers(void);
38 int trace_array_printk(struct trace_array *tr, unsigned long ip,
39 const char *fmt, ...);
40 int trace_array_init_printk(struct trace_array *tr);
41 void trace_array_put(struct trace_array *tr);
42 struct trace_array *trace_array_get_by_name(const char *name);
43 int trace_array_destroy(struct trace_array *tr);
45 /* For osnoise tracer */
46 int osnoise_arch_register(void);
47 void osnoise_arch_unregister(void);
48 void osnoise_trace_irq_entry(int id);
49 void osnoise_trace_irq_exit(int id, const char *desc);
51 #else /* CONFIG_TRACING */
52 static inline int register_ftrace_export(struct trace_export *export)
56 static inline int unregister_ftrace_export(struct trace_export *export)
60 static inline void trace_printk_init_buffers(void)
63 static inline int trace_array_printk(struct trace_array *tr, unsigned long ip,
68 static inline int trace_array_init_printk(struct trace_array *tr)
72 static inline void trace_array_put(struct trace_array *tr)
75 static inline struct trace_array *trace_array_get_by_name(const char *name)
79 static inline int trace_array_destroy(struct trace_array *tr)
83 #endif /* CONFIG_TRACING */
85 #endif /* _LINUX_TRACE_H */