1 /* SPDX-License-Identifier: GPL-2.0 */
7 #define TRACE_EXPORT_FUNCTION BIT(0)
8 #define TRACE_EXPORT_EVENT BIT(1)
9 #define TRACE_EXPORT_MARKER BIT(2)
12 * The trace export - an export of Ftrace output. The trace_export
13 * can process traces and export them to a registered destination as
14 * an addition to the current only output of Ftrace - i.e. ring buffer.
16 * If you want traces to be sent to some other place rather than ring
17 * buffer only, just need to register a new trace_export and implement
18 * its own .write() function for writing traces to the storage.
20 * next - pointer to the next trace_export
21 * write - copy traces which have been delt with ->commit() to
23 * flags - which ftrace to be exported
26 struct trace_export __rcu *next;
27 void (*write)(struct trace_export *, const void *, unsigned int);
31 int register_ftrace_export(struct trace_export *export);
32 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 #endif /* CONFIG_TRACING */
53 #endif /* _LINUX_TRACE_H */