1 #ifndef _LINUX_TRACE_SEQ_H
2 #define _LINUX_TRACE_SEQ_H
9 * Trace sequences are used to allow a function to call several other functions
10 * to create a string of data to use (up to a max of PAGE_SIZE).
14 unsigned char buffer[PAGE_SIZE];
21 trace_seq_init(struct trace_seq *s)
29 * Currently only defined when tracing is enabled.
33 int trace_seq_printf(struct trace_seq *s, const char *fmt, ...);
35 int trace_seq_vprintf(struct trace_seq *s, const char *fmt, va_list args);
37 trace_seq_bprintf(struct trace_seq *s, const char *fmt, const u32 *binary);
38 extern int trace_print_seq(struct seq_file *m, struct trace_seq *s);
39 extern ssize_t trace_seq_to_user(struct trace_seq *s, char __user *ubuf,
41 extern int trace_seq_puts(struct trace_seq *s, const char *str);
42 extern int trace_seq_putc(struct trace_seq *s, unsigned char c);
43 extern int trace_seq_putmem(struct trace_seq *s, const void *mem, size_t len);
44 extern int trace_seq_putmem_hex(struct trace_seq *s, const void *mem,
46 extern void *trace_seq_reserve(struct trace_seq *s, size_t len);
47 extern int trace_seq_path(struct trace_seq *s, const struct path *path);
49 #else /* CONFIG_TRACING */
50 static inline int trace_seq_printf(struct trace_seq *s, const char *fmt, ...)
55 trace_seq_bprintf(struct trace_seq *s, const char *fmt, const u32 *binary)
60 static inline int trace_print_seq(struct seq_file *m, struct trace_seq *s)
64 static inline ssize_t trace_seq_to_user(struct trace_seq *s, char __user *ubuf,
69 static inline int trace_seq_puts(struct trace_seq *s, const char *str)
73 static inline int trace_seq_putc(struct trace_seq *s, unsigned char c)
78 trace_seq_putmem(struct trace_seq *s, const void *mem, size_t len)
82 static inline int trace_seq_putmem_hex(struct trace_seq *s, const void *mem,
87 static inline void *trace_seq_reserve(struct trace_seq *s, size_t len)
91 static inline int trace_seq_path(struct trace_seq *s, const struct path *path)
95 #endif /* CONFIG_TRACING */
97 #endif /* _LINUX_TRACE_SEQ_H */