函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\trace_mmiotrace.c Create Date:2022-07-27 13:19:01
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：mmio_print_rw

函数原型：static enum print_line_t mmio_print_rw(struct trace_iterator *iter)

返回类型：enum print_line_t

参数：

类型参数名称
struct trace_iterator *iter
169  entry等于ent
172  s等于 The below is zeroed out in pipe_read
173  t等于ns2usecs(ts)
174  usec_rem等于do_div() is NOT a C function(t, USEC_PER_SEC)
175  secs等于t
177  The trace_assign_type is a verifier that the entry type is* the same as the type being assigned. To add new types simply* add a line with the following format:* IF_ASSIGN(var, ent, type, id);* Where "type" is the trace type that includes the trace_entry(field, entry)
178  rw等于rw
181  当: one of MMIO_{READ,WRITE,UNKNOWN_OP} 恒等于 struct mmiotrace_rw
182  race_seq_printf - sequence printing of trace information*@s: trace sequence descriptor*@fmt: printf format string* The tracer may use either sequence operations or its own* copy to user routines
187  退出
188  当: one of MMIO_{READ,WRITE,UNKNOWN_OP} 恒等于 struct mmiotrace_rw
189  race_seq_printf - sequence printing of trace information*@s: trace sequence descriptor*@fmt: printf format string* The tracer may use either sequence operations or its own* copy to user routines
194  退出
195  当: one of MMIO_{READ,WRITE,UNKNOWN_OP} 恒等于 struct mmiotrace_rw
196  race_seq_printf - sequence printing of trace information*@s: trace sequence descriptor*@fmt: printf format string* The tracer may use either sequence operations or its own* copy to user routines
203  退出
204  默认
205  race_seq_puts - trace sequence printing of simple string*@s: trace sequence descriptor*@str: simple string to record* The tracer may use either the sequence operations or its own* copy to user routines
206  退出
209  返回:Several functions return TRACE_TYPE_PARTIAL_LINE if the trace_seq* overflowed, and TRACE_TYPE_HANDLED otherwise. This helper function* simplifies those functions and keeps them in sync.
调用者
名称描述
mmio_print_line