如何强制使用本地共享库而不是系统库? [英] How to force using local shared libraries over system libraries?
问题描述
如何在 linux 中强制使用本地库而不是系统库?
How can I force using a local library over the system library in linux?
我将我的可执行文件显式链接到我的项目/lib 目录中的一些 .so 文件,例如(../lib/libluajit.so).
I linked my executable explicitly to some .so files in my project/lib directory e.g. (../lib/libluajit.so).
在 gdb 下运行我的可执行文件或使用 ldd 显示它仍然使用系统 libluajit-5.1.so.2
Running my executable under gdb or using ldd shows that it still uses the system libluajit-5.1.so.2
然后我将 LD_LIBRARY_PATH 设置为我的项目/lib 目录并将其导出,然后运行我的可执行文件.不知何故,它仍在获取系统库(由 gdb 和 ldd 确认)
I then set LD_LIBRARY_PATH to my project/lib directory and exported it, then ran my executable. Somehow it's still picking up the system library (confirmed by both gdb and ldd)
我想知道这怎么可能,以及我可以做些什么来强制它使用我的 project/lib 目录中的本地 libluajit.so.
I'd like to know how that's even possible, and what I can do to force it to use the local libluajit.so in my project/lib directory.
推荐答案
链接时,指定库的目录,同时使用rpath:
When you link, specify the directory of the library and also use an rpath:
-Wl,-rpath,/absolute/path/to/your/library -L/absolute/path/to/your/library -llibrary
-L
告诉链接器在链接时在哪里找到你的库,-rpath
告诉它在运行时在哪里搜索库.
-L
tells the linker where to find your library at link time, and -rpath
tells it where to search for the library at runtime.
请注意,-L
和 -rpath
需要包含您的 .so 文件的目录,而不是库文件本身的实际路径.
Note that -L
and -rpath
need the directory that contains your .so file, not the actual path of the library file itself.
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