儘管設置了rpath，但找不到一個dll

Question

ldd無法找到一個dll，它出現在rpath定義中。找到一些其他庫（檢查/./../lib/*）

這裏是ldd的輸出（我們可以看到2個DLL在../lib中找到，但沒有找到libexpat.so.0：

根@ hyperstream：/ DT /本地/ ADE-trunk4 /集結ADE-桌面 - 缺省/倉＃ LDD ./ade_admin Linux的vdso.so.1 =>（0x00007ffeb9796000） libadeversion.so = > /DT/local/ADE-trunk4/build-ADE-Desktop-Default/bin/./../lib/libadeversion.so （0x00007f31abaef000）libuuid.so.1 => /lib/x86_64-linux- gnu/libuuid.so.1（0x00007f31ab8ca000） libpthread.so.0 =>/lib/x86_64-linux-gnu/libpthr ead.so.0 （0x00007f31ab6ac000）libaprutil-1.so.0 => /DT/local/ADE-trunk4/build-ADE-Desktop-Default/bin/./../lib/libaprutil-1。 so.0 （0x00007f31ab58c000）libapr-1.so.0 => /DT/local/ADE-trunk4/build-ADE-Desktop-Default/bin/./../lib/libapr-1.so 0.0 （0x00007f31ab460000）libavahi-client.so.3 => /usr/lib/x86_64-linux-gnu/libavahi-client.so.3（0x00007f31ab24d000） libavahi-common.so.3 => /usr/lib/x86_64-linux-gnu/libavahi-common.so.3（0x00007f31ab041000） libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2（0x00007f31aae3d000） libstdC++。so。 6 =>/usr/lib/x86_64-linux-g nu/libstdC++。so.6 （0x00007f31aaab5000）libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 （0x00007f31aa7ac000）libgcc_s.so.1 => /lib/x86_64-linux -gnu/libgcc_s.so.1（0x00007f31aa595000）libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6（0x00007f31aa1cc000） /lib64/ld-linux-x86-64.so。 2（0x0000560d30a76000）libexpat.so.0 => 未找到 librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 （0x00007f31a9fc4000）[...]

root @ hyperstream：/ DT/local/ADE-trunk4/build-ADE-Desktop-Default/bin＃ file ../lib/libexpat.so.0 ../lib/libexpat.so.0：ELF 64位LSB分享 對象，X86-64，版本1（SYSV），動態鏈接， BuildID [SHA1] = 762de704943d03033d01a9725216d6b05d0740f5，不剝離

這裏將rpath：

根@ hyperstream：/ DT /本地/ ADE-trunk4/build-ADE-Desktop-Default/bin＃ readelf -d ade_admin | grep的 'R. * PATH' 16：0x000000000000001d（RUNPATH） 庫運行路徑：[$ {ORIGIN} /../ lib中]

現在兇手的事實：這是鏗鏘3.8的作品，但失敗GCC 6.3（Ubuntu的16.10）

顯然添加LD_LIBRARY_PATH = ../lib目錄使其再次工作，但rpath中的目標是避免將其設置

根@ hyperstream：/ DT /本地/ ADE-trunk4/build-ADE-Desktop-Default/bin＃ export LD_LIB RARY_PATH = ../ lib中 根@ hyperstream：/ DT /本地/ ADE-trunk4 /集結ADE-桌面 - 缺省/倉＃ LDD ./ade_admin Linux的vdso.so.1 =>（0x00007ffea23b6000） libadeversion.so => ../lib/libadeversion.so（0x00007f78c6474000） libuuid.so.1 => /lib/x86_64-linux-gnu/libuuid.so.1 （0x00007f78c624f000）libpthread.so.0 => /lib/x86_64- linux-gnu/libpthread.so.0（0x00007f78c6031000） libaprutil-1.so.0 => ../lib/libaprutil-1.so.0（0x00007f78c5f11000） libapr-1.so.0 => ../ lib/libapr-1.so.0（0x00007f78c5de5000） libavahi-client.so.3 => /usr/lib/x86_64-linux-gnu/libavahi-client.so.3（0x00007f78c5bd2000） libavahi-common.so .3 => /usr/lib/x86_64-linux-gnu/libavahi-common.so.3（0x00007f78c59c6000） libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2（0x00007f78c57c2000） libstdC++。 so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 （0x00007f78c543a000）libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 （0x00007f78c5131000） libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1（0x00007f78c4f1a000）libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6（0x00007f78c4b51000） /lib64/ld-linux-x86-64.so.2（0x0000559fdceab000）libexpat.so.0 => 。 ./lib/libexpat.so.0（0x00007f78c492a000）

任何想法？

問候

洛朗

Answer 1

我只是找到了解釋：鐺放在小精靈二進制文件的[需要的]部分中的所有庫（甚至圖書館沒有明確地由包括我自己，而是通過引用[需要的]

readelf -d my_prog 

Dynamic section at offset 0x9cb548 contains 46 entries: 
    Tag  Type       Name/Value 
0x0000000000000001 (NEEDED)    Shared library: [libadeversion.so] 
0x0000000000000001 (NEEDED)    Shared library: [libuuid.so.1] 
0x0000000000000001 (NEEDED)    Shared library: [libsqlite3.so] 
0x0000000000000001 (NEEDED)    Shared library: [libpthread.so.0] 
0x0000000000000001 (NEEDED)    Shared library: [libaprutil-1.so.0] 
0x0000000000000001 (NEEDED)    Shared library: [libapr-1.so.0] 
0x0000000000000001 (NEEDED)    Shared library: [libavahi-client.so.3] 
0x0000000000000001 (NEEDED)    Shared library: [libavahi-common.so.3] 
0x0000000000000001 (NEEDED)    Shared library: [libdl.so.2] 
0x0000000000000001 (NEEDED)    Shared library: [libaio.so.1] 
0x0000000000000001 (NEEDED)    Shared library: [librt.so.1] 
0x0000000000000001 (NEEDED)    Shared library: [lib_adm64.so] 
0x0000000000000001 (NEEDED)    Shared library: [lib_dict64.so] 
0x0000000000000001 (NEEDED)    Shared library: [lib_rdm64.so] 
0x0000000000000001 (NEEDED)    Shared library: [lib_dbr64.so] 
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] 
0x000000000000001d (RUNPATH)   Library runpath: [${ORIGIN}/../lib/:$ORIGIN/../lib/:../lib/] 

從鐺：我包括從GCC

例的庫的部分

readelf -d my_prog 

Dynamic section at offset 0xa7bae8 contains 54 entries: 
    Tag  Type       Name/Value 
0x0000000000000001 (NEEDED)    Shared library: [libadeversion.so] 
0x0000000000000001 (NEEDED)    Shared library: [libuuid.so.1] 
0x0000000000000001 (NEEDED)    Shared library: [libsqlite3.so] 
0x0000000000000001 (NEEDED)    Shared library: [libpthread.so.0] 
0x0000000000000001 (NEEDED)    Shared library: [libaprutil-1.so.0] 
0x0000000000000001 (NEEDED)    Shared library: [libexpat.so.0] 
0x0000000000000001 (NEEDED)    Shared library: [libapr-1.so.0] 
0x0000000000000001 (NEEDED)    Shared library: [libavahi-client.so.3] 
0x0000000000000001 (NEEDED)    Shared library: [libavahi-common.so.3] 
0x0000000000000001 (NEEDED)    Shared library: [libdl.so.2] 
0x0000000000000001 (NEEDED)    Shared library: [libaio.so.1] 
0x0000000000000001 (NEEDED)    Shared library: [libcrypt.so.1] 
0x0000000000000001 (NEEDED)    Shared library: [librt.so.1] 
0x0000000000000001 (NEEDED)    Shared library: [lib_adm64.so] 
0x0000000000000001 (NEEDED)    Shared library: [lib_dict64.so] 
0x0000000000000001 (NEEDED)    Shared library: [lib_rdm64.so] 
0x0000000000000001 (NEEDED)    Shared library: [lib_rpc64.so] 
0x0000000000000001 (NEEDED)    Shared library: [lib_sql64.so] 
0x0000000000000001 (NEEDED)    Shared library: [lib_rdbc64.so] 
0x0000000000000001 (NEEDED)    Shared library: [lib_rm64.so] 
0x0000000000000001 (NEEDED)    Shared library: [lib_ncp64.so] 
0x0000000000000001 (NEEDED)    Shared library: [lib_cmp64.so] 
0x0000000000000001 (NEEDED)    Shared library: [lib_repfltr64.so] 
0x0000000000000001 (NEEDED)    Shared library: [lib_expat64.so] 
0x0000000000000001 (NEEDED)    Shared library: [lib_cncp64.so] 
0x0000000000000001 (NEEDED)    Shared library: [lib_dbr64.so] 
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] 
0x000000000000001d (RUNPATH)   Library runpath: [${ORIGIN}/../lib/:$ORIGIN/../lib/:../lib/] 

而且一個DLL包括缺少一個的libexpat：

readelf -d ../lib/libaprutil-1.so.0 

Dynamic section at offset 0x1e698 contains 29 entries: 
    Tag  Type       Name/Value 
0x0000000000000001 (NEEDED)    Shared library: **[libexpat.so.0]** 
0x0000000000000001 (NEEDED)    Shared library: [libapr-1.so.0] 
0x0000000000000001 (NEEDED)    Shared library: [libuuid.so.1] 
0x0000000000000001 (NEEDED)    Shared library: [librt.so.1] 
0x0000000000000001 (NEEDED)    Shared library: [libcrypt.so.1] 
0x0000000000000001 (NEEDED)    Shared library: [libpthread.so.0] 
0x0000000000000001 (NEEDED)    Shared library: [libdl.so.2] 
0x0000000000000001 (NEEDED)    Shared library: [libc.so.6] 
0x000000000000000e (SONAME)    Library soname: [libaprutil-1.so.0] 

但RUNPATH僅由二進制不是由DLL（即可以擁有自己的是太RUNPATH）。

2解決方案： - 在libaprutil-1.so.0中添加一個RUNPATH以強制從「。」包含庫。 - 明確添加我構建中的所有缺少的dll

希望它有幫助