WebRTC 常用工具

Abstract	WebRTC 常用工具
Authors	Walter Fan
Status	WIP
Updated	2024-08-21

binutils 

The GNU Binutils are a collection of binary tools. The main ones are:

ld - the GNU linker.
as - the GNU assembler.

But they also include:

addr2line - Converts addresses into filenames and line numbers.
ar - A utility for creating, modifying and extracting from archives.
c++filt - Filter to demangle encoded C++ symbols.
dlltool - Creates files for building and using DLLs.
gold - A new, faster, ELF only linker, still in beta test.
gprof - Displays profiling information.
nlmconv - Converts object code into an NLM.
nm - Lists symbols from object files.
objcopy - Copies and translates object files.
objdump - Displays information from object files.
ranlib - Generates an index to the contents of an archive.
readelf - Displays information from any ELF format object file.
size - Lists the section sizes of an object or archive file.
strings - Lists printable strings from files.
strip - Discards symbols.
windmc - A Windows compatible message compiler.
windres - A compiler for Windows resource files.

example 

Linux Tools 

seq 生成数字序列 wc -l 计算行数 sed awk cut head tail sort jq split tee tr uniq * vim: 输入 :%! xxd 用来编辑二进制文件

例如:

def localip(eth="en0"):
   cmd = "ifconfig %s | grep inet | awk '$1==\"inet\" {print $2}'" % eth
   local(cmd)

gprof 

cc -g -c myprog.c utils.c -pg cc -o myprog myprog.o utils.o -pg

refer to https://sourceware.org/binutils/docs/gprof/index.html

Python Tools 

psutil 

import psutil

#refer to https://psutil.readthedocs.io/en/latest/#processes

def localres(times=10, type="cpu", app="safari"):
   for i in range(int(times)):
      if type == 'cpu':
            print(psutil.cpu_percent(interval=1, percpu=True))
            continue

      print(psutil.net_if_stats())

      for proc in psutil.process_iter(['pid', 'name', 'username']):
            if app in proc.info["name"].lower():
               print(proc.info)

WebRTC 常用工具

binutils

example

Linux Tools

gprof

Python Tools

psutil