linux下查看动态链接库依赖关系的命令

linux下查看动态链接库依赖关系的命令

x86:

ldd *.so

arm:

arm-linux-readelf -d *.so

实际例子:

以项目中用到的库librtsp.so分析：

lijun@ubuntu:~/workspace$ arm-hisiv100nptl-linux-ld
-d librtsp.so

arm-hisiv100nptl-linux-ld: warning: liblog.so, needed by librtsp.so, not found (try using -rpath or -rpath-link)

arm-hisiv100nptl-linux-ld: warning: libcutils.so, needed by librtsp.so, not found (try using -rpath or -rpath-link)

arm-hisiv100nptl-linux-ld: warning: libutils.so, needed by librtsp.so, not found (try using -rpath or -rpath-link)

arm-hisiv100nptl-linux-ld: warning: libbinder.so, needed by librtsp.so, not found (try using -rpath or -rpath-link)

arm-hisiv100nptl-linux-ld: warning: libssl.so, needed by librtsp.so, not found (try using -rpath or -rpath-link)

arm-hisiv100nptl-linux-ld: warning: libcrypto.so, needed by librtsp.so, not found (try using -rpath or -rpath-link)

arm-hisiv100nptl-linux-ld: warning: libgui.so, needed by librtsp.so, not found (try using -rpath or -rpath-link)

arm-hisiv100nptl-linux-ld: warning: libmedia.so, needed by librtsp.so, not found (try using -rpath or -rpath-link)

arm-hisiv100nptl-linux-ld: warning: libstagefright_foundation.so, needed by librtsp.so, not found (try using -rpath or -rpath-link)

arm-hisiv100nptl-linux-ld: warning: libc.so, needed by librtsp.so, not found (try using -rpath or -rpath-link)

arm-hisiv100nptl-linux-ld: warning: libstdc++.so, needed by librtsp.so, not found (try using -rpath or -rpath-link)

arm-hisiv100nptl-linux-ld: warning: cannot find entry symbol _start; defaulting to 00008204

librtsp.so: undefined reference to `__aeabi_unwind_cpp_pr0'

librtsp.so: undefined reference to `operator new[](unsigned int)'

librtsp.so: undefined reference to `__sF'

librtsp.so: undefined reference to `operator delete[](void*)'

librtsp.so: undefined reference to `_Unwind_Resume_or_Rethrow'

librtsp.so: undefined reference to `_Unwind_VRS_Get'

librtsp.so: undefined reference to `_toupper_tab_'

librtsp.so: undefined reference to `__gnu_unwind_frame'

librtsp.so: undefined reference to `__memset_chk'

librtsp.so: undefined reference to `pthread_key_create'

librtsp.so: undefined reference to `_Unwind_RaiseException'

librtsp.so: undefined reference to `__strcat_chk'

librtsp.so: undefined reference to `operator delete(void*)'

librtsp.so: undefined reference to `__aeabi_unwind_cpp_pr1'

librtsp.so: undefined reference to `_tolower_tab_'

librtsp.so: undefined reference to `__cxa_pure_virtual'

librtsp.so: undefined reference to `_Unwind_VRS_Set'

librtsp.so: undefined reference to `_Unwind_GetLanguageSpecificData'

librtsp.so: undefined reference to `__android_log_print'

librtsp.so: undefined reference to `pthread_getspecific'

librtsp.so: undefined reference to `_Unwind_Resume'

librtsp.so: undefined reference to `__strlen_chk'

librtsp.so: undefined reference to `_ctype_'

librtsp.so: undefined reference to `__isthreaded'

librtsp.so: undefined reference to `_Unwind_Complete'

librtsp.so: undefined reference to `_Unwind_DeleteException'

librtsp.so: undefined reference to `_Unwind_GetTextRelBase'

librtsp.so: undefined reference to `__aeabi_uldivmod'

librtsp.so: undefined reference to `__swbuf'

librtsp.so: undefined reference to `_Unwind_GetDataRelBase'

librtsp.so: undefined reference to `pthread_key_delete'

librtsp.so: undefined reference to `__sprintf_chk'

librtsp.so: undefined reference to `_Unwind_GetRegionStart'

librtsp.so: undefined reference to `__errno'

librtsp.so: undefined reference to `operator new(unsigned int)'

librtsp.so: undefined reference to `pthread_setspecific

lijun@ubuntu:~/workspace$ arm-hisiv100nptl-linux-readelf
-d librtsp.so

Dynamic section at offset 0x93c14 contains 34 entries:

Tag Type Name/Value

0x00000003 (PLTGOT) 0x94e34

0x00000002 (PLTRELSZ) 896 (bytes)

0x00000017 (JMPREL) 0x40a08

0x00000014 (PLTREL) REL

0x00000011 (REL) 0x37eb8

0x00000012 (RELSZ) 35664 (bytes)

0x00000013 (RELENT) 8 (bytes)

0x6ffffffa (RELCOUNT) 4380

0x00000006 (SYMTAB) 0x114

0x0000000b (SYMENT) 16 (bytes)

0x00000005 (STRTAB) 0xe264

0x0000000a (STRSZ) 148452 (bytes)

0x00000004 (HASH) 0x32648

0x00000001 (NEEDED) Shared library: [liblog.so]

0x00000001 (NEEDED) Shared library: [libcutils.so]

0x00000001 (NEEDED) Shared library: [libutils.so]

0x00000001 (NEEDED) Shared library: [libbinder.so]

0x00000001 (NEEDED) Shared library: [libssl.so]

0x00000001 (NEEDED) Shared library: [libcrypto.so]

0x00000001 (NEEDED) Shared library: [libgui.so]

0x00000001 (NEEDED) Shared library: [libmedia.so]

0x00000001 (NEEDED) Shared library: [libstagefright_foundation.so]

0x00000001 (NEEDED) Shared library: [libc.so]

0x00000001 (NEEDED) Shared library: [libstdc++.so]

0x00000001 (NEEDED) Shared library: [libm.so]

0x0000000e (SONAME) Library soname: [librtsp.so]

0x0000001a (FINI_ARRAY) 0x90084

0x0000001c (FINI_ARRAYSZ) 4 (bytes)

0x00000019 (INIT_ARRAY) 0x90088

0x0000001b (INIT_ARRAYSZ) 36 (bytes)

0x00000010 (SYMBOLIC) 0x0

0x0000001e (FLAGS) SYMBOLIC BIND_NOW

0x6ffffffb (FLAGS_1) Flags: NOW

0x00000000 (NULL) 0x0

参考:

apk相关和loadLibrary详解

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Linux的nm查看动态和静态库中的符号

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Linux命令学习手册-readelf命令

http://blog.chinaunix.net/uid-9525959-id-2001833.html

eCos编译Synthethic Target程序时无法解析__sprintf_chk的解决办法

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