Contributors: 10
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Steven Rostedt |
97 |
27.32% |
9 |
40.91% |
| Chunyan Zhang |
77 |
21.69% |
1 |
4.55% |
| Divya Indi |
60 |
16.90% |
2 |
9.09% |
| Arun Easi |
56 |
15.77% |
1 |
4.55% |
| Daniel Bristot de Oliveira |
26 |
7.32% |
1 |
4.55% |
| Tingwei Zhang |
16 |
4.51% |
3 |
13.64% |
| Tom Zanussi |
12 |
3.38% |
2 |
9.09% |
| Tom Rix |
6 |
1.69% |
1 |
4.55% |
| Felipe Balbi |
4 |
1.13% |
1 |
4.55% |
| Greg Kroah-Hartman |
1 |
0.28% |
1 |
4.55% |
| Total |
355 |
|
22 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_TRACE_H
#define _LINUX_TRACE_H
#define TRACE_EXPORT_FUNCTION BIT(0)
#define TRACE_EXPORT_EVENT BIT(1)
#define TRACE_EXPORT_MARKER BIT(2)
/*
* The trace export - an export of Ftrace output. The trace_export
* can process traces and export them to a registered destination as
* an addition to the current only output of Ftrace - i.e. ring buffer.
*
* If you want traces to be sent to some other place rather than ring
* buffer only, just need to register a new trace_export and implement
* its own .write() function for writing traces to the storage.
*
* next - pointer to the next trace_export
* write - copy traces which have been delt with ->commit() to
* the destination
* flags - which ftrace to be exported
*/
struct trace_export {
struct trace_export __rcu *next;
void (*write)(struct trace_export *, const void *, unsigned int);
int flags;
};
struct trace_array;
#ifdef CONFIG_TRACING
int register_ftrace_export(struct trace_export *export);
int unregister_ftrace_export(struct trace_export *export);
/**
* trace_array_puts - write a constant string into the trace buffer.
* @tr: The trace array to write to
* @str: The constant string to write
*/
#define trace_array_puts(tr, str) \
({ \
str ? __trace_array_puts(tr, _THIS_IP_, str, strlen(str)) : -1; \
})
int __trace_array_puts(struct trace_array *tr, unsigned long ip,
const char *str, int size);
void trace_printk_init_buffers(void);
__printf(3, 4)
int trace_array_printk(struct trace_array *tr, unsigned long ip,
const char *fmt, ...);
int trace_array_init_printk(struct trace_array *tr);
void trace_array_put(struct trace_array *tr);
struct trace_array *trace_array_get_by_name(const char *name, const char *systems);
int trace_array_destroy(struct trace_array *tr);
/* For osnoise tracer */
int osnoise_arch_register(void);
void osnoise_arch_unregister(void);
void osnoise_trace_irq_entry(int id);
void osnoise_trace_irq_exit(int id, const char *desc);
#else /* CONFIG_TRACING */
static inline int register_ftrace_export(struct trace_export *export)
{
return -EINVAL;
}
static inline int unregister_ftrace_export(struct trace_export *export)
{
return 0;
}
static inline void trace_printk_init_buffers(void)
{
}
static inline int trace_array_printk(struct trace_array *tr, unsigned long ip,
const char *fmt, ...)
{
return 0;
}
static inline int trace_array_init_printk(struct trace_array *tr)
{
return -EINVAL;
}
static inline void trace_array_put(struct trace_array *tr)
{
}
static inline struct trace_array *trace_array_get_by_name(const char *name, const char *systems)
{
return NULL;
}
static inline int trace_array_destroy(struct trace_array *tr)
{
return 0;
}
#endif /* CONFIG_TRACING */
#endif /* _LINUX_TRACE_H */