嵌入式平台下的ldd

x86平台有ldd可以很方便的查看对库的依赖关系，但在嵌入式linux环境中没有这个命令，替而代之是

CC=$(CROSS_COMPILE)gcc

LDD=$(CROSS_COMPILE)readelf

范例

1. $(CROSS_COMPILE)readelf -d SDKDemo_video
2. Dynamic section at offset 0x1a88 contains 22 entries:
3. Tag        Type                         Name/Value
4. 0x00000001 (NEEDED)                     Shared library: [libtxdevicesdk.so]
5. 0x00000001 (NEEDED)                     Shared library: [libpthread.so.0]
6. 0x00000001 (NEEDED)                     Shared library: [libdl.so.0]
7. 0x00000001 (NEEDED)                     Shared library: [libstdc++.so.6]
8. 0x00000001 (NEEDED)                     Shared library: [libc.so.0]
9. 0x0000000c (INIT)                       0x87cc
10. 0x0000000d (FINI)                       0x96d0
11. 0x00000019 (INIT_ARRAY)                 0x11a7c
12. 0x0000001b (INIT_ARRAYSZ)               4 (bytes)
13. 0x0000001a (FINI_ARRAY)                 0x11a80
14. 0x0000001c (FINI_ARRAYSZ)               4 (bytes)
15. 0x00000004 (HASH)                       0x8108
16. 0x00000005 (STRTAB)                     0x84ec
17. 0x00000006 (SYMTAB)                     0x824c
18. 0x0000000a (STRSZ)                      512 (bytes)
19. 0x0000000b (SYMENT)                     16 (bytes)
20. 0x00000015 (DEBUG)                      0x0
21. 0x00000003 (PLTGOT)                     0x11b60
22. 0x00000002 (PLTRELSZ)                   224 (bytes)
23. 0x00000014 (PLTREL)                     REL
24. 0x00000017 (JMPREL)                     0x86ec
25. 0x00000000 (NULL)                       0x0