本文介绍了ldd还会显示依赖关系的依赖关系吗?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有一个二进制文件，其中ldd显示了意外的依赖性和libicuuc(来自"icu").
I have a binary for which ldd shows an unexpected dependency und libicuuc (from "icu").
#ldd A
[...]
libxml2.so.2 => /usr/lib64/libxml2.so.2 (0x00007faaf9722000)
libicuuc.so.49 => /usr/lib64/libicuuc.so.49 (0x00007faaf5689000)
由于在此系统上libxml动态依赖于libicuuc，因此可以肯定地发现ldd最终找到了它，但是是否期望libicuuc也出现在A的ldd输出中?是否有一些命令仅检索链接为依赖项依赖关系的库?
Since on this system libxml depends dynamically on libicuuc, it makes sense that ldd enventually ends up finding it, but is it expected that libicuuc also appears in the ldd output for A? Is there some command to retrieve only the libraries that are linked in as dependencies of dependencies?
推荐答案
ldd显示启动应用程序或加载共享库时需要加载的所有库.
ldd shows all libraries that it would need to load when starting the application or loading a shared library.
readelf -d仅显示二进制文件的直接依赖项.
readelf -d shows only direct dependencies of the binary.
$ readelf -d /opt/google/chrome/chrome | grep NEEDED
0x0000000000000001 (NEEDED) Shared library: [libX11.so.6]
0x0000000000000001 (NEEDED) Shared library: [libXrandr.so.2]
0x0000000000000001 (NEEDED) Shared library: [libXrender.so.1]
0x0000000000000001 (NEEDED) Shared library: [libXss.so.1]
0x0000000000000001 (NEEDED) Shared library: [libXext.so.6]
0x0000000000000001 (NEEDED) Shared library: [librt.so.1]
0x0000000000000001 (NEEDED) Shared library: [libdl.so.2]
0x0000000000000001 (NEEDED) Shared library: [libgobject-2.0.so.0]
0x0000000000000001 (NEEDED) Shared library: [libgthread-2.0.so.0]
0x0000000000000001 (NEEDED) Shared library: [libglib-2.0.so.0]
0x0000000000000001 (NEEDED) Shared library: [libgtk-x11-2.0.so.0]
0x0000000000000001 (NEEDED) Shared library: [libgdk-x11-2.0.so.0]
0x0000000000000001 (NEEDED) Shared library: [libatk-1.0.so.0]
0x0000000000000001 (NEEDED) Shared library: [libgdk_pixbuf-2.0.so.0]
0x0000000000000001 (NEEDED) Shared library: [libpangocairo-1.0.so.0]
0x0000000000000001 (NEEDED) Shared library: [libcairo.so.2]
0x0000000000000001 (NEEDED) Shared library: [libpango-1.0.so.0]
0x0000000000000001 (NEEDED) Shared library: [libfreetype.so.6]
0x0000000000000001 (NEEDED) Shared library: [libfontconfig.so.1]
0x0000000000000001 (NEEDED) Shared library: [libnss3.so]
0x0000000000000001 (NEEDED) Shared library: [libnssutil3.so]
0x0000000000000001 (NEEDED) Shared library: [libsmime3.so]
0x0000000000000001 (NEEDED) Shared library: [libplc4.so]
0x0000000000000001 (NEEDED) Shared library: [libnspr4.so]
0x0000000000000001 (NEEDED) Shared library: [libpthread.so.0]
0x0000000000000001 (NEEDED) Shared library: [libgconf-2.so.4]
0x0000000000000001 (NEEDED) Shared library: [libdbus-1.so.3]
0x0000000000000001 (NEEDED) Shared library: [libXcomposite.so.1]
0x0000000000000001 (NEEDED) Shared library: [libasound.so.2]
0x0000000000000001 (NEEDED) Shared library: [libXfixes.so.3]
0x0000000000000001 (NEEDED) Shared library: [libcups.so.2]
0x0000000000000001 (NEEDED) Shared library: [libgcrypt.so.11]
0x0000000000000001 (NEEDED) Shared library: [libbz2.so.1.0]
0x0000000000000001 (NEEDED) Shared library: [libexpat.so.1]
0x0000000000000001 (NEEDED) Shared library: [libudev.so.0]
0x0000000000000001 (NEEDED) Shared library: [libstdc++.so.6]
0x0000000000000001 (NEEDED) Shared library: [libm.so.6]
0x0000000000000001 (NEEDED) Shared library: [libgcc_s.so.1]
0x0000000000000001 (NEEDED) Shared library: [libc.so.6]
0x0000000000000001 (NEEDED) Shared library: [ld-linux-x86-64.so.2]
$ ldd /opt/google/chrome/chrome
linux-vdso.so.1 => (0x00007fff9d3ff000)
libX11.so.6 => /lib64/libX11.so.6 (0x00007f93186dc000)
libXrandr.so.2 => /lib64/libXrandr.so.2 (0x00007f93184d3000)
libXrender.so.1 => /lib64/libXrender.so.1 (0x00007f93182c9000)
libXss.so.1 => /lib64/libXss.so.1 (0x00007f93180c5000)
libXext.so.6 => /lib64/libXext.so.6 (0x00007f9317eb2000)
librt.so.1 => /lib64/librt.so.1 (0x00007f9317caa000)
libdl.so.2 => /lib64/libdl.so.2 (0x00007f9317aa6000)
libgobject-2.0.so.0 => /lib64/libgobject-2.0.so.0 (0x00007f9317858000)
libgthread-2.0.so.0 => /lib64/libgthread-2.0.so.0 (0x00007f9317656000)
libglib-2.0.so.0 => /lib64/libglib-2.0.so.0 (0x00007f9317336000)
libgtk-x11-2.0.so.0 => /lib64/libgtk-x11-2.0.so.0 (0x00007f9316cbf000)
libgdk-x11-2.0.so.0 => /lib64/libgdk-x11-2.0.so.0 (0x00007f9316a00000)
libatk-1.0.so.0 => /lib64/libatk-1.0.so.0 (0x00007f93167de000)
libgdk_pixbuf-2.0.so.0 => /lib64/libgdk_pixbuf-2.0.so.0 (0x00007f93165bb000)
libpangocairo-1.0.so.0 => /lib64/libpangocairo-1.0.so.0 (0x00007f93163ae000)
libcairo.so.2 => /lib64/libcairo.so.2 (0x00007f9316103000)
libpango-1.0.so.0 => /lib64/libpango-1.0.so.0 (0x00007f9315eb7000)
libfreetype.so.6 => /usr/lib64/freetype-freeworld/libfreetype.so.6 (0x00007f9315c15000)
libfontconfig.so.1 => /lib64/libfontconfig.so.1 (0x00007f93159e0000)
libnss3.so => /lib64/libnss3.so (0x00007f93156a4000)
libnssutil3.so => /lib64/libnssutil3.so (0x00007f9315479000)
libsmime3.so => /lib64/libsmime3.so (0x00007f931524c000)
libplc4.so => /lib64/libplc4.so (0x00007f9315046000)
libnspr4.so => /lib64/libnspr4.so (0x00007f9314e09000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f9314bed000)
libgconf-2.so.4 => /lib64/libgconf-2.so.4 (0x00007f93149bc000)
libdbus-1.so.3 => /lib64/libdbus-1.so.3 (0x00007f9314778000)
libXcomposite.so.1 => /lib64/libXcomposite.so.1 (0x00007f9314575000)
libasound.so.2 => /lib64/libasound.so.2 (0x00007f9314294000)
libXfixes.so.3 => /lib64/libXfixes.so.3 (0x00007f931408e000)
libcups.so.2 => /lib64/libcups.so.2 (0x00007f9313e33000)
libgcrypt.so.11 => /lib64/libgcrypt.so.11 (0x00007f9313bba000)
libbz2.so.1.0 => not found
libexpat.so.1 => /lib64/libexpat.so.1 (0x00007f9313991000)
libudev.so.0 => /lib64/libudev.so.0 (0x00007f9313782000)
libstdc++.so.6 => /lib64/libstdc++.so.6 (0x00007f931347f000)
libm.so.6 => /lib64/libm.so.6 (0x00007f9313184000)
libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007f9312f6e000)
libc.so.6 => /lib64/libc.so.6 (0x00007f9312bb7000)
/lib64/ld-linux-x86-64.so.2 (0x0000003c7a000000)
libxcb.so.1 => /lib64/libxcb.so.1 (0x00007f9312999000)
libffi.so.5 => /lib64/libffi.so.5 (0x00007f9312790000)
libgmodule-2.0.so.0 => /lib64/libgmodule-2.0.so.0 (0x00007f931258c000)
libgio-2.0.so.0 => /lib64/libgio-2.0.so.0 (0x00007f931223f000)
libpangoft2-1.0.so.0 => /lib64/libpangoft2-1.0.so.0 (0x00007f9312012000)
libXinerama.so.1 => /lib64/libXinerama.so.1 (0x00007f9311e0f000)
libXi.so.6 => /lib64/libXi.so.6 (0x00007f9311c00000)
libXcursor.so.1 => /lib64/libXcursor.so.1 (0x00007f93119f4000)
libXdamage.so.1 => /lib64/libXdamage.so.1 (0x00007f93117f1000)
libpng15.so.15 => /lib64/libpng15.so.15 (0x00007f93115c7000)
libpixman-1.so.0 => /lib64/libpixman-1.so.0 (0x00007f9311340000)
libz.so.1 => /lib64/libz.so.1 (0x00007f9311129000)
libplds4.so => /lib64/libplds4.so (0x00007f9310f24000)
libdbus-glib-1.so.2 => /lib64/libdbus-glib-1.so.2 (0x00007f9310cfd000)
libgssapi_krb5.so.2 => /lib64/libgssapi_krb5.so.2 (0x00007f9310ab8000)
libkrb5.so.3 => /lib64/libkrb5.so.3 (0x00007f93107d3000)
libk5crypto.so.3 => /lib64/libk5crypto.so.3 (0x00007f93105a8000)
libcom_err.so.2 => /lib64/libcom_err.so.2 (0x00007f93103a3000)
libgnutls.so.26 => /lib64/libgnutls.so.26 (0x00007f93100eb000)
libgpg-error.so.0 => /lib64/libgpg-error.so.0 (0x00007f930fee7000)
libavahi-common.so.3 => /lib64/libavahi-common.so.3 (0x00007f930fcd9000)
libavahi-client.so.3 => /lib64/libavahi-client.so.3 (0x00007f930fac8000)
libcrypt.so.1 => /lib64/libcrypt.so.1 (0x00007f930f891000)
libXau.so.6 => /lib64/libXau.so.6 (0x00007f930f68c000)
libselinux.so.1 => /lib64/libselinux.so.1 (0x00007f930f46b000)
libresolv.so.2 => /lib64/libresolv.so.2 (0x00007f930f251000)
libkrb5support.so.0 => /lib64/libkrb5support.so.0 (0x00007f930f046000)
libkeyutils.so.1 => /lib64/libkeyutils.so.1 (0x00007f930ee42000)
libtasn1.so.3 => /lib64/libtasn1.so.3 (0x00007f930ec31000)
libp11-kit.so.0 => /lib64/libp11-kit.so.0 (0x00007f930ea1e000)
libfreebl3.so => /lib64/libfreebl3.so (0x00007f930e7b3000)
您可以设置ldd和readelf -d输出的差异.
You can do set difference of ldd and readelf -d outputs.
这篇关于ldd还会显示依赖关系的依赖关系吗?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！