* Usage Two elements are required for tracepoints : - A tracepoint definition, placed in a header file. - The tracepoint statement, in C code. 数据结构和宏定义在文件 include/linux/tacepoint.
《Documentation/ftrace.txt:ftrace - Function Tracer》 目录 what’s ftrace? first steps with ftrace getting started with trace-cmd: let’s trace just one function next ftrace trick: let’s trace a proces