| 1 | |
| 2 | #include "marker.h" |
| 3 | |
| 4 | /** |
| 5 | * __mark_empty_function - Empty probe callback |
| 6 | * @probe_private: probe private data |
| 7 | * @call_private: call site private data |
| 8 | * @fmt: format string |
| 9 | * @...: variable argument list |
| 10 | * |
| 11 | * Empty callback provided as a probe to the markers. By providing this to a |
| 12 | * disabled marker, we make sure the execution flow is always valid even |
| 13 | * though the function pointer change and the marker enabling are two distinct |
| 14 | * operations that modifies the execution flow of preemptible code. |
| 15 | */ |
| 16 | void __mark_empty_function(void *probe_private, void *call_private, |
| 17 | const char *fmt, va_list *args) |
| 18 | { |
| 19 | } |
| 20 | |
| 21 | /* |
| 22 | * marker_probe_cb Callback that prepares the variable argument list for probes. |
| 23 | * @mdata: pointer of type struct marker |
| 24 | * @call_private: caller site private data |
| 25 | * @fmt: format string |
| 26 | * @...: Variable argument list. |
| 27 | * |
| 28 | */ |
| 29 | void marker_probe_cb(const struct marker *mdata, void *call_private, |
| 30 | const char *fmt, ...) |
| 31 | { |
| 32 | |
| 33 | |
| 34 | } |