代码如下：
#include <stdio.h>
/* run this program using the console pauser or add your own getch, system("pause") or input loop */
void test2();
void test(){
printf("hello1111\n");
}
void test1(){
printf("hello1111\n");
test2();
}void test2(){
printf("hello call 2222\n");
}void test3(){
printf("hello333\n");
}void test4(){
printf("hello44\n");
}void test5(){
printf("hello55\n");
}void te5st(){
printf("hello11511\n");
}void test6(){
printf("hello6666\n");
}
int main() {
printf("hello world!\n");
test();
test1();
test2();
test3();
test4();
test5();
te5st();
test6();
return 0;
}
主要尝试相关参数：
1.
readelf -s hwphello
出现：（其中最为有用的就是test相关的几个函数）
Symbol table '.dynsym' contains 7 entries:
Num: Value Size Type Bind Vis Ndx Name
0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
1: 0000000000000000 0 NOTYPE WEAK DEFAULT UND _ITM_deregisterTMCloneTab
2: 0000000000000000 0 FUNC GLOBAL DEFAULT UND puts@GLIBC_2.2.5 (2)
3: 0000000000000000 0 FUNC GLOBAL DEFAULT UND __libc_start_main@GLIBC_2.2.5 (2)
4: 0000000000000000 0 NOTYPE WEAK DEFAULT UND __gmon_start__
5: 0000000000000000 0 NOTYPE WEAK DEFAULT UND _ITM_registerTMCloneTable
6: 0000000000000000 0 FUNC WEAK DEFAULT UND __cxa_finalize@GLIBC_2.2.5 (2)
Symbol table '.symtab' contains 73 entries:
Num: Value Size Type Bind Vis Ndx Name
0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
1: 0000000000000318 0 SECTION LOCAL DEFAULT 1
2: 0000000000000338 0 SECTION LOCAL DEFAULT 2
3: 0000000000000358 0 SECTION LOCAL DEFAULT 3
4: 000000000000037c 0 SECTION LOCAL DEFAULT 4
5: 00000000000003a0 0 SECTION LOCAL DEFAULT 5
6: 00000000000003c8 0 SECTION LOCAL DEFAULT 6
7: 0000000000000470 0 SECTION LOCAL DEFAULT 7
8: 00000000000004f2 0 SECTION LOCAL DEFAULT 8
9: 0000000000000500 0 SECTION LOCAL DEFAULT 9
10: 0000000000000520 0 SECTION LOCAL DEFAULT 10
11: 00000000000005e0 0 SECTION LOCAL DEFAULT 11
12: 0000000000001000 0 SECTION LOCAL DEFAULT 12
13: 0000000000001020 0 SECTION LOCAL DEFAULT 13
14: 0000000000001040 0 SECTION LOCAL DEFAULT 14
15: 0000000000001050 0 SECTION LOCAL DEFAULT 15
16: 0000000000001060 0 SECTION LOCAL DEFAULT 16
17: 00000000000012f8 0 SECTION LOCAL DEFAULT 17
18: 0000000000002000 0 SECTION LOCAL DEFAULT 18
19: 000000000000205c 0 SECTION LOCAL DEFAULT 19
20: 00000000000020e0 0 SECTION LOCAL DEFAULT 20
21: 0000000000003db8 0 SECTION LOCAL DEFAULT 21
22: 0000000000003dc0 0 SECTION LOCAL DEFAULT 22
23: 0000000000003dc8 0 SECTION LOCAL DEFAULT 23
24: 0000000000003fb8 0 SECTION LOCAL DEFAULT 24
25: 0000000000004000 0 SECTION LOCAL DEFAULT 25
26: 0000000000004010 0 SECTION LOCAL DEFAULT 26
27: 0000000000000000 0 SECTION LOCAL DEFAULT 27
28: 0000000000000000 0 FILE LOCAL DEFAULT ABS crtstuff.c
29: 0000000000001090 0 FUNC LOCAL DEFAULT 16 deregister_tm_clones
30: 00000000000010c0 0 FUNC LOCAL DEFAULT 16 register_tm_clones
31: 0000000000001100 0 FUNC LOCAL DEFAULT 16 __do_global_dtors_aux
32: 0000000000004010 1 OBJECT LOCAL DEFAULT 26 completed.8061
33: 0000000000003dc0 0 OBJECT LOCAL DEFAULT 22 __do_global_dtors_aux_fin
34: 0000000000001140 0 FUNC LOCAL DEFAULT 16 frame_dummy
35: 0000000000003db8 0 OBJECT LOCAL DEFAULT 21 __frame_dummy_init_array_
36: 0000000000000000 0 FILE LOCAL DEFAULT ABS swqhello.c
37: 0000000000000000 0 FILE LOCAL DEFAULT ABS crtstuff.c
38: 00000000000022e4 0 OBJECT LOCAL DEFAULT 20 __FRAME_END__
39: 0000000000000000 0 FILE LOCAL DEFAULT ABS
40: 0000000000003dc0 0 NOTYPE LOCAL DEFAULT 21 __init_array_end
41: 0000000000003dc8 0 OBJECT LOCAL DEFAULT 23 _DYNAMIC
42: 0000000000003db8 0 NOTYPE LOCAL DEFAULT 21 __init_array_start
43: 000000000000205c 0 NOTYPE LOCAL DEFAULT 19 __GNU_EH_FRAME_HDR
44: 0000000000003fb8 0 OBJECT LOCAL DEFAULT 24 _GLOBAL_OFFSET_TABLE_
45: 0000000000001000 0 FUNC LOCAL DEFAULT 12 _init
46: 00000000000012f0 5 FUNC GLOBAL DEFAULT 16 __libc_csu_fini
47: 0000000000000000 0 NOTYPE WEAK DEFAULT UND _ITM_deregisterTMCloneTab
48: 0000000000004000 0 NOTYPE WEAK DEFAULT 25 data_start
49: 0000000000000000 0 FUNC GLOBAL DEFAULT UND puts@@GLIBC_2.2.5
50: 0000000000004010 0 NOTYPE GLOBAL DEFAULT 25 _edata
51: 00000000000011c6 23 FUNC GLOBAL DEFAULT 16 test5
52: 00000000000012f8 0 FUNC GLOBAL HIDDEN 17 _fini
53: 0000000000001198 23 FUNC GLOBAL DEFAULT 16 test3
54: 0000000000001160 33 FUNC GLOBAL DEFAULT 16 test1
55: 0000000000000000 0 FUNC GLOBAL DEFAULT UND __libc_start_main@@GLIBC_
56: 0000000000004000 0 NOTYPE GLOBAL DEFAULT 25 __data_start
57: 0000000000000000 0 NOTYPE WEAK DEFAULT UND __gmon_start__
58: 0000000000004008 0 OBJECT GLOBAL HIDDEN 25 __dso_handle
59: 0000000000002000 4 OBJECT GLOBAL DEFAULT 18 _IO_stdin_used
60: 0000000000001280 101 FUNC GLOBAL DEFAULT 16 __libc_csu_init
61: 0000000000004018 0 NOTYPE GLOBAL DEFAULT 26 _end
62: 0000000000001060 47 FUNC GLOBAL DEFAULT 16 _start
63: 0000000000004010 0 NOTYPE GLOBAL DEFAULT 26 __bss_start
64: 000000000000120b 107 FUNC GLOBAL DEFAULT 16 main
65: 00000000000011f4 23 FUNC GLOBAL DEFAULT 16 test6
66: 00000000000011af 23 FUNC GLOBAL DEFAULT 16 test4
67: 0000000000001181 23 FUNC GLOBAL DEFAULT 16 test2
68: 00000000000011dd 23 FUNC GLOBAL DEFAULT 16 te5st
69: 0000000000004010 0 OBJECT GLOBAL HIDDEN 25 __TMC_END__
70: 0000000000000000 0 NOTYPE WEAK DEFAULT UND _ITM_registerTMCloneTable
71: 0000000000000000 0 FUNC WEAK DEFAULT UND __cxa_finalize@@GLIBC_2.2
72: 0000000000001149 23 FUNC GLOBAL DEFAULT 16 test
