| 1 | --- |
| 2 | id: liblttng-ust-tracepoint-loglevel |
| 3 | --- |
| 4 | |
| 5 | The following table shows the available log level values for the |
| 6 | `TRACEPOINT_LOGLEVEL()` macro: |
| 7 | |
| 8 | <table class="func-desc"> |
| 9 | <thead> |
| 10 | <tr> |
| 11 | <th>Enum label</th> |
| 12 | <th>Enum value</th> |
| 13 | <th>Description</th> |
| 14 | </tr> |
| 15 | </thead> |
| 16 | <tbody> |
| 17 | <tr> |
| 18 | <td><code class="no-bg">TRACE_EMERG</code></td> |
| 19 | <td>0</td> |
| 20 | <td>System is unusable</td> |
| 21 | </tr> |
| 22 | <tr> |
| 23 | <td><code class="no-bg">TRACE_ALERT</code></td> |
| 24 | <td>1</td> |
| 25 | <td>Action must be taken immediately</td> |
| 26 | </tr> |
| 27 | <tr> |
| 28 | <td><code class="no-bg">TRACE_CRIT</code></td> |
| 29 | <td>2</td> |
| 30 | <td>Critical conditions</td> |
| 31 | </tr> |
| 32 | <tr> |
| 33 | <td><code class="no-bg">TRACE_ERR</code></td> |
| 34 | <td>3</td> |
| 35 | <td>Error conditions</td> |
| 36 | </tr> |
| 37 | <tr> |
| 38 | <td><code class="no-bg">TRACE_WARNING</code></td> |
| 39 | <td>4</td> |
| 40 | <td>Warning conditions</td> |
| 41 | </tr> |
| 42 | <tr> |
| 43 | <td><code class="no-bg">TRACE_NOTICE</code></td> |
| 44 | <td>5</td> |
| 45 | <td>Normal, but significant, condition</td> |
| 46 | </tr> |
| 47 | <tr> |
| 48 | <td><code class="no-bg">TRACE_INFO</code></td> |
| 49 | <td>6</td> |
| 50 | <td>Informational message</td> |
| 51 | </tr> |
| 52 | <tr> |
| 53 | <td><code class="no-bg">TRACE_DEBUG_SYSTEM</code></td> |
| 54 | <td>7</td> |
| 55 | <td>Debug information with system-level scope (set of programs)</td> |
| 56 | </tr> |
| 57 | <tr> |
| 58 | <td><code class="no-bg">TRACE_DEBUG_PROGRAM</code></td> |
| 59 | <td>8</td> |
| 60 | <td>Debug information with program-level scope (set of processes)</td> |
| 61 | </tr> |
| 62 | <tr> |
| 63 | <td><code class="no-bg">TRACE_DEBUG_PROCESS</code></td> |
| 64 | <td>9</td> |
| 65 | <td>Debug information with process-level scope (set of modules)</td> |
| 66 | </tr> |
| 67 | <tr> |
| 68 | <td><code class="no-bg">TRACE_DEBUG_MODULE</code></td> |
| 69 | <td>10</td> |
| 70 | <td>Debug information with module (executable/library) scope (set of units)</td> |
| 71 | </tr> |
| 72 | <tr> |
| 73 | <td><code class="no-bg">TRACE_DEBUG_UNIT</code></td> |
| 74 | <td>11</td> |
| 75 | <td>Debug information with compilation unit scope (set of functions)</td> |
| 76 | </tr> |
| 77 | <tr> |
| 78 | <td><code class="no-bg">TRACE_DEBUG_FUNCTION</code></td> |
| 79 | <td>12</td> |
| 80 | <td>Debug information with function-level scope</td> |
| 81 | </tr> |
| 82 | <tr> |
| 83 | <td><code class="no-bg">TRACE_DEBUG_LINE</code></td> |
| 84 | <td>13</td> |
| 85 | <td>Debug information with line-level scope (<code>TRACEPOINT_EVENT</code> default)</td> |
| 86 | </tr> |
| 87 | <tr> |
| 88 | <td><code class="no-bg">TRACE_DEBUG</code></td> |
| 89 | <td>14</td> |
| 90 | <td>Debug-level message</td> |
| 91 | </tr> |
| 92 | </tbody> |
| 93 | </table> |
| 94 | |
| 95 | Higher log level numbers imply the most verbosity (expect higher tracing |
| 96 | throughput). Log levels 0 through 6 and log level 14 match |
| 97 | <a href="http://man7.org/linux/man-pages/man3/syslog.3.html" class="ext">syslog</a> |
| 98 | level semantics. Log levels 7 through 13 offer more fine-grained |
| 99 | selection of debug information. |