Thus, no function2 ./init/main.c: * won't be any messing with the stack from main(), but we define3 ./init/main.c:void main(void)/* This really IS void, no error here. */Select: 1 ~ 3 ? 3File: ./init/main.cTarget: ./init/main.c: main -> callgraph/main.__init_...
no function2 ./init/main.c: * won't be any messing with the stack from main(), but we define3 ./init/main.c:void main(void)/* This really IS void, no error here. */Select:1 ~3 ?3
function_name,output_file)->None:self._dot_folder=dot_folderself._funciont_name=function_nameself._output_file=output_fileself._callee=dict()self._graph=pydot.Dot("callgraph-info-combiner",graph_type="graph",bgcolor="white")passdefanalyze(self,include_private=False):forfileinos.listdir(self...
需要注意的是,上面提供了三个选项用于选择需要展示的图片,原因是这个 callgraph 目前的函数识别能力还不够智能,可以看出 3 就是我们需要的函数,所以,上面选择序号 3。 生成的函数调用关系图默认保存为 callgraph/main.__init_main_c.svg。 图片导出后,默认会调用 chromium-browser 展示图片,如果不存在该浏览器,可...
/* Couldn't find frame unwind info for this function. Try a target-specific fallback mechanism. This will necessarily not profide a personality routine or LSDA. */ #ifdef MD_FALLBACK_FRAME_STATE_FOR MD_FALLBACK_FRAME_STATE_FOR (context, fs, success); // 出错的地方 return _URC_END_OF...
importpydotclassCallgraphInfoCombiner(object):def__init__(self,dot_folder,function_name,output_file)->None:self._dot_folder=dot_folder self._funciont_name=function_name self._output_file=output_file self._callee=dict()self._graph=pydot.Dot("callgraph-info-combiner",graph_type="graph",bgcol...
其基本原理是给 GCC 打个补丁(如果你的gcc版本不符合它的要求还得先下载正确的gcc版本),让它在编译每个源文件时 dump 出其中函数的 call graph,然后用 Perl 脚本收集并整理调用关系,转交给Graphviz绘制图形(Graphviz属于后端,CodeViz属于前端)。 CodeViz 原本是作者用来分析 Linux virtual memory 的源码时写的一个...
uftrace is a function call graph tracer for C, C++, Rust and Python programs. It hooks into the entry and exit of each function, recording timestamps as well as the function's arguments and return values. uftrace is capable of tracing both user and kernel functions, as well as library ...
voidfunction(){// 代码段1// 代码段2// 代码段3} 在这个例子中,Gprof可以告诉我们function函数总体消耗的时间,但是它无法分别告诉我们代码段1、代码段2和代码段3各自消耗的时间,这就是Gprof的性能检测颗粒度。 5.3 深度和颗粒度对性能分析的影响 性能检测的深度和颗粒度对于我们理解和优化程序的性能有着重要的...
graph : shows function call graph in the trace data script : runs a script for recorded trace data tui : show text user interface for graph and report You can use -h or --help option to see available commands and options. $ uftrace uftrace -- function (graph) tracer for userspace usag...