1 #ifndef _LINUX_TRACE_SEQ_H
2 #define _LINUX_TRACE_SEQ_H
5 * Trace sequences are used to allow a function to call several other functions
6 * to create a string of data to use (up to a max of PAGE_SIZE.
10 unsigned char buffer[PAGE_SIZE];
16 trace_seq_init(struct trace_seq *s)
23 * Currently only defined when tracing is enabled.
26 extern int trace_seq_printf(struct trace_seq *s, const char *fmt, ...)
27 __attribute__ ((format (printf, 2, 3)));
29 trace_seq_bprintf(struct trace_seq *s, const char *fmt, const u32 *binary);
30 extern void trace_print_seq(struct seq_file *m, struct trace_seq *s);
31 extern ssize_t trace_seq_to_user(struct trace_seq *s, char __user *ubuf,
33 extern int trace_seq_puts(struct trace_seq *s, const char *str);
34 extern int trace_seq_putc(struct trace_seq *s, unsigned char c);
35 extern int trace_seq_putmem(struct trace_seq *s, const void *mem, size_t len);
36 extern int trace_seq_putmem_hex(struct trace_seq *s, const void *mem,
38 extern void *trace_seq_reserve(struct trace_seq *s, size_t len);
39 extern int trace_seq_path(struct trace_seq *s, struct path *path);
41 #else /* CONFIG_TRACING */
42 static inline int trace_seq_printf(struct trace_seq *s, const char *fmt, ...)
43 __attribute__ ((format (printf, 2, 3)))
48 trace_seq_bprintf(struct trace_seq *s, const char *fmt, const u32 *binary)
53 static inline void trace_print_seq(struct seq_file *m, struct trace_seq *s)
56 static inline ssize_t trace_seq_to_user(struct trace_seq *s, char __user *ubuf,
61 static inline int trace_seq_puts(struct trace_seq *s, const char *str)
65 static inline int trace_seq_putc(struct trace_seq *s, unsigned char c);
70 trace_seq_putmem(struct trace_seq *s, const void *mem, size_t len)
74 static inline int trace_seq_putmem_hex(struct trace_seq *s, const void *mem,
79 static inline void *trace_seq_reserve(struct trace_seq *s, size_t len)
83 static inline int trace_seq_path(struct trace_seq *s, struct path *path)
87 #endif /* CONFIG_TRACING */
89 #endif /* _LINUX_TRACE_SEQ_H */