| Function report | 
| Source Code: kernel\trace\trace_events_hist.c | Create Date:2022-07-28 12:30:37 | 
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick | 
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| Annotation kernel can get tool activity | Download SCCT | Chinese | 
Name:create_alias
Proto:static struct hist_field *create_alias(struct hist_trigger_data *hist_data, struct hist_field *var_ref, char *var_name)
Type:struct hist_field
Parameter:
| Type | Parameter | Name | 
|---|---|---|
| struct hist_trigger_data * | hist_data | |
| struct hist_field * | var_ref | |
| char * | var_name | 
| 2858 | struct hist_field * alias = NULL | 
| 2859 | flags = HIST_FIELD_FL_ALIAS | HIST_FIELD_FL_VAR | 
| 2862 | If Not alias Then Return NULL | 
| 2868 | If init_var_ref(alias, var_ref, system, event_name) Then | 
| 2869 | destroy_hist_field(alias, 0) | 
| 2870 | Return NULL | 
| 2875 | Return alias | 
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