Function report |
Source Code:kernel\trace\trace_events_hist.c |
Create Date:2022-07-28 12:31:21 |
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_field_var
Proto:static struct field_var *create_field_var(struct hist_trigger_data *hist_data, struct trace_event_file *file, char *field_name)
Type:struct field_var
Parameter:
Type | Parameter | Name |
---|---|---|
struct hist_trigger_data * | hist_data | |
struct trace_event_file * | file | |
char * | field_name |
3525 | struct hist_field * val = NULL, * var = NULL |
3526 | flags = HIST_FIELD_FL_VAR |
3529 | ret = 0 |
3531 | If n_field_vars >= SYNTH_FIELDS_MAX Then |
3534 | Go to err |
3537 | val = parse_atom(hist_data, file, field_name, & flags, NULL) |
3541 | Go to err |
3544 | var = create_var(hist_data, file, field_name, size, type) |
3549 | Go to err |
3552 | field_var = kzalloc - allocate memory. The memory is set to zero.*@size: how many bytes of memory are required.*@flags: the type of memory to allocate (see kmalloc). |
3553 | If Not field_var Then |
3562 | out : |
3563 | Return field_var |
3564 | err : |
3566 | Go to out |
Name | Describe |
---|---|
create_target_field_var | reate_target_field_var - Automatically create a variable for a field*@target_hist_data: The target hist trigger*@subsys_name: Optional subsystem name*@event_name: Optional event name*@var_name: The name of the field (and the resulting variable)* Hist |
Source code conversion tool public plug-in interface | X |
---|---|
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