projects / deliverable / lttng-modules.git / blame
| Commit | Line | Data |
|---|---|---|
| b7cdc182 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| b87700e3 AG |
2 | #undef TRACE_SYSTEM |
| 3 | #define TRACE_SYSTEM printk | |
| 4 | ||
| 3bc29f0a MD |
5 | #if !defined(LTTNG_TRACE_PRINTK_H) || defined(TRACE_HEADER_MULTI_READ) |
| 6 | #define LTTNG_TRACE_PRINTK_H | |
| b87700e3 | 7 | |
| 6ec43db8 | 8 | #include <probes/lttng-tracepoint-event.h> |
| b87700e3 AG |
9 | #include <linux/version.h> |
| 10 | ||
| 68ed2ee0 MD |
11 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)) |
| 12 | ||
| 9bbf98da MD |
13 | LTTNG_TRACEPOINT_EVENT_MAP(console, |
| 14 | ||
| 15 | printk_console, | |
| 16 | ||
| 68ed2ee0 MD |
17 | TP_PROTO(const char *text, size_t len), |
| 18 | ||
| 19 | TP_ARGS(text, len), | |
| 20 | ||
| f127e61e MD |
21 | TP_FIELDS( |
| 22 | ctf_sequence_text(char, msg, text, size_t, len) | |
| 23 | ) | |
| 68ed2ee0 MD |
24 | ) |
| 25 | ||
| 26 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0)) | |
| b87700e3 | 27 | |
| 47046cfc | 28 | LTTNG_TRACEPOINT_EVENT_MAP(console, |
| 9bbf98da MD |
29 | |
| 30 | printk_console, | |
| 31 | ||
| b87700e3 AG |
32 | TP_PROTO(const char *log_buf, unsigned start, unsigned end, |
| 33 | unsigned log_buf_len), | |
| 34 | ||
| 35 | TP_ARGS(log_buf, start, end, log_buf_len), | |
| 36 | ||
| f127e61e MD |
37 | TP_FIELDS( |
| 38 | ctf_sequence_text(char, msg, log_buf + start, | |
| 39 | size_t, end - start) | |
| 40 | ) | |
| 68ed2ee0 MD |
41 | ) |
| 42 | ||
| 43 | #else /* (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0)) */ | |
| 44 | ||
| 47046cfc | 45 | LTTNG_TRACEPOINT_EVENT_MAP(console, |
| 9bbf98da MD |
46 | |
| 47 | printk_console, | |
| 48 | ||
| 68ed2ee0 MD |
49 | TP_PROTO(const char *log_buf, unsigned start, unsigned end, |
| 50 | unsigned log_buf_len), | |
| 51 | ||
| 52 | TP_ARGS(log_buf, start, end, log_buf_len), | |
| 53 | ||
| f127e61e MD |
54 | TP_FIELDS( |
| 55 | /* | |
| 56 | * printk buffer is gathered from two segments on older kernels. | |
| 57 | */ | |
| 58 | ctf_sequence_text(char, msg1, | |
| 59 | log_buf + (start & (log_buf_len - 1)), | |
| 60 | size_t, (start & (log_buf_len - 1)) > (end & (log_buf_len - 1)) | |
| 68ed2ee0 | 61 | ? log_buf_len - (start & (log_buf_len - 1)) |
| f127e61e MD |
62 | : end - start) |
| 63 | ctf_sequence_text(char, msg2, | |
| 64 | log_buf, | |
| 65 | size_t, (start & (log_buf_len - 1)) > (end & (log_buf_len - 1)) | |
| 68ed2ee0 MD |
66 | ? end & (log_buf_len - 1) |
| 67 | : 0) | |
| f127e61e | 68 | ) |
| b87700e3 | 69 | ) |
| 68ed2ee0 MD |
70 | |
| 71 | #endif | |
| 72 | ||
| 3bc29f0a | 73 | #endif /* LTTNG_TRACE_PRINTK_H */ |
| b87700e3 AG |
74 | |
| 75 | /* This part must be outside protection */ | |
| 6ec43db8 | 76 | #include <probes/define_trace.h> |