1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
--
-- get the .so object names in a table
-- objload("elf_get_obj_names", "../bfd/test/test.so", "symbol_list")
--
-- get the .so object sizes in a table
-- objload("elf_get_obj_sizes", "../bfd/test/test.so", "symbol_list")
--
-- get the .so function names in a table
-- objload("elf_get_func_names", "../bfd/test/test.so", "symbol_list")
--
-- get the .so function code in a table of tables
-- objload("elf_get_func_code", "../bfd/test/test.so", "code_list")
--
--------------------------------------------------------------------------------------------------------------
elf_file = "../bfd/test/test.so"
--elf_file = "../bfd/test/test"
function printObjNames()
local c = objload("elf_get_obj_names", elf_file, "symbol_list")
for k,v in ipairs(c) do
print(k,v)
end
end
function printObjSizes()
local c = objload("elf_get_obj_sizes", elf_file, "symbol_list")
for k,v in ipairs(c) do
print(k,v)
end
end
function printFuncNames()
local c = objload("elf_get_func_names", elf_file, "symbol_list")
for k,v in ipairs(c) do
print(k,v)
end
end
function printFuncCode()
local c = objload("elf_get_func_code", elf_file, "code_list")
for k,v in ipairs(c) do
print(k,v)
if #v ~= 0 then
for k1,v1 in ipairs(v) do
io.write(string.format('%02x', v1), " ")
end
io.write("\n")
end
end
end
function findMain()
local c = objload("elf_get_func_names", elf_file, "symbol_list")
for k,v in ipairs(c) do
if v == "'main'" then
io.write("main index is".." "..k.."\n")
return k
end
end
end
function codeTables()
local return_table = {}
local func_name_table = objload("elf_get_func_names", elf_file, "symbol_list")
local code_table = objload("elf_get_func_code", elf_file, "code_list")
for i=1,#func_name_table,1 do
return_table[func_name_table[i]] = code_table[i]
end
return return_table
end
function codeTableByName(name)
local return_table = {}
local func_name_table = objload("elf_get_func_names", elf_file, "symbol_list")
local code_table = objload("elf_get_func_code", elf_file, "code_list")
for k,v in ipairs(func_name_table) do
if v == name then
for k1, v1 in ipairs(code_table[k]) do
table.insert(return_table, string.format('%02x', v1))
end
return return_table
end
end
return nil
end
function codeTableByName_number(name)
local return_table = {}
local func_name_table = objload("elf_get_func_names", elf_file, "symbol_list")
local code_table = objload("elf_get_func_code", elf_file, "code_list")
for k,v in ipairs(func_name_table) do
if v == name then
for k1, v1 in ipairs(code_table[k]) do
table.insert(return_table, v1)
end
return return_table
end
end
return nil
end
function printFuncSizes()
local func_name_table = objload("elf_get_func_names", elf_file, "symbol_list")
local code_table = objload("elf_get_func_code", elf_file, "code_list")
local counter = 1
print("function sizes:")
for k, v in ipairs(code_table) do
print("code size for "..func_name_table[counter].." is".." "..#v)
counter = counter + 1
end
end
-- start of @placeholder
function xobjRegister(code_table, registration_name)
-- lightuserdata
local Xobjpointer
return Xobjpointer
end
-- should be varargs
-- registration_name()
-- end of @placeholder
function main()
printObjNames()
printObjSizes()
printFuncNames()
printFuncCode()
findMain()
local code_table = codeTables()
print(code_table["'main'"])
for k,v in ipairs(code_table["'main'"]) do
io.write(string.format('%02x', v), " ")
end
io.write("\n")
local C_main_code = codeTableByName("'main'")
for k, v in ipairs(C_main_code) do
io.write(v, " ")
end
io.write("\n")
local add2_code = codeTableByName_number("'add2'")
local sub2_code = codeTableByName_number("'sub2'")
printFuncSizes()
pwd()
xobjregister(add2_code, "add2")
xobjregister(sub2_code, "sub2")
end
main()
--------------------------------------------------------------------------------------------------------------
|