函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\trace.c Create Date:2022-07-27 13:06:12
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：s_show

函数原型：static int s_show(struct seq_file *m, void *v)

返回类型：int

参数：

类型参数名称
struct seq_file *m
void *v
4099  iter等于v
4102  如果(ent == NULL)则
4103  如果tr则
4104  seq_printf(m, "# tracer: %s\n", name)
4105  seq_puts(m, "#\n")
4106  test_ftrace_alive(m)
4108  如果 it's true when current open file is snapshot 且trace_empty(iter)则Should never be called
4110  否则如果trace且print_header则print_header(m)
4112  否则trace_default_header(m)
4115  否则如果leftover则
4120  ret等于trace_print_seq(m, & The below is zeroed out in pipe_read )
4123  leftover等于ret
4125  否则
4126  Called with trace_event_read_lock() held.
4127  ret等于trace_print_seq(m, & The below is zeroed out in pipe_read )
4135  leftover等于ret
4138  返回:0