# cmake .
# make

# go get "github.com/milochristiansen/lua"
# go build clua.go

-- 加载libclua.so
local cl = require "libclua"
-- 开始记录执行过程，生成结果文件
-- 第一个参数为结果文件的文件名
-- 第二个参数为定时生成结果文件的间隔（秒），0表示关闭
cl.start("test.cov", 5)-- 执行某些事情
do_something()-- 结束记录
cl.stop()

a) 首先获取进程中的Lua_State指针，比如进程调用了lua_settop(L)函数，那么就取第一个参数
# ./hookso arg $PID liblua.so lua_settop 1
123456b) 加载libclua.so
# ./hookso dlopen $PID ./libclua.soc) 执行libclua.so的start_cov手动开启，等价于start_cov(L, "./test.cov", 5)
# ./hookso call $PID libclua.so start_cov i=123456 s="./test.cov" i=5c) 执行libclua.so的stop_cov手动关闭，等价于stop_cov(L)
# ./hookso call $PID libclua.so stop_cov i=123456

# ./clua -i test.cov

# lua5.3 ./test.lua

# ll test.cov

# ./clua -i test.cov
total points = 27, files = 1
coverage of /home/project/clua/test.lua:local cl = require "libclua"cl.start("test.cov", 5)1   function test1(i)
10      if i % 2 then
10          print("a "..i)elseprint("b "..i)end
11  end1   function test2(i)
40      if i > 30 then
19          print("c "..i)else
21          print("d "..i)end
41  end1   function test3(i)51      if i > 0 then
51          print("e "..i)elseprint("f "..i)end52  endtest4 = function(i)local function test5(i)
12          print("g "..i)
15      end15      for i = 0, 3 do
12          test5(i)end4   end102 for i = 0, 100 do
101     if i < 10 then
10          test1(i)
91      elseif i < 50 then
40          test2(i)else
51          test3(i)endend4   for i = 0, 2 do
3       test4(i)end1   cl.stop()/home/project/clua/test.lua total coverage 78% 22/28
/home/project/clua/test.lua function coverage [function test1(i)] 66% 2/3
/home/project/clua/test.lua function coverage [function test2(i)] 100% 3/3
/home/project/clua/test.lua function coverage [function test3(i)] 66% 2/3
/home/project/clua/test.lua function coverage [test4 = function(i)] 75% 3/4
/home/project/clua/test.lua function coverage [local function test5(i)] 100% 1/1

# ./clua -i test.cov -lcov test.info

# genhtml test.info