Function report |
Source Code:kernel\trace\trace_functions_graph.c |
Create Date:2022-07-28 12:13:49 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Name:graph_trace_open
Proto:void graph_trace_open(struct trace_iterator *iter)
Type:void
Parameter:
Type | Parameter | Name |
---|---|---|
struct trace_iterator * | iter |
1207 | private = NULL |
1212 | data = 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). |
1216 | cpu_data = alloc_percpu_gfp(structfgraph_cpu_data, gfpflags) |
1217 | If Not cpu_data Then Go to out_err_free |
1220 | for_each_possible_cpu(cpu) |
1221 | pid_t * pid = & (({ |
1221 | })->last_pid) |
1222 | int * depth = & (({ |
1222 | })->depth) |
1223 | int * ignore = & (({ |
1223 | })->ignore) |
1224 | int * depth_irq = & (({ |
1224 | })->depth_irq) |
1226 | pid = -1 |
1227 | depth = 0 |
1228 | ignore = 0 |
1229 | depth_irq = -1 |
1234 | Return |
1236 | out_err_free : |
1238 | out_err : |
1239 | pr_warn("function graph tracer: not enough memory\n") |
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