There is an executable that is dynamically linked to number of shared objects. How can I determine, to which of them some symbol (imported into executable) belongs ?
有一个可执行文件动态链接到多个共享对象。如何确定某些符号(导入可执行文件)属于哪一个?
If there are more than one possibility, could I silmulate ld and see from where it is being taken ?
如果有多种可能性,我可以将ld模仿并查看它的拍摄地点吗?
4 个解决方案
#2
5
As well as the ones Charlie mentioned, "ldd" might do some of what you're looking for.
除了查理提到的那些,“ldd”可能会做你正在寻找的一些东西。
#3
3
If you can relink the executable, the simplest way to find out where references and definitions come from is using ld -y flag. For example:
如果可以重新链接可执行文件,找到引用和定义来源的最简单方法是使用ld -y标志。例如:
$ cat t.c
int main() { printf("Hello\n"); return 0; }
$ gcc t.c -Wl,-yprintf
/lib/libc.so.6: definition of printf
If you can not relink the executable, then run ldd on it, and then run 'nm -D' on all the libraries listed in order, and grep for the symbol you are interested in.
如果您无法重新链接可执行文件,则在其上运行ldd,然后对按顺序列出的所有库运行'nm -D',并为您感兴趣的符号grep。
#4
1
$LD_DEBUG=bindings my_program
That would print all the symbol bindings on the console.
这将打印控制台上的所有符号绑定。
#1
#2
5
As well as the ones Charlie mentioned, "ldd" might do some of what you're looking for.
除了查理提到的那些,“ldd”可能会做你正在寻找的一些东西。
#3
3
If you can relink the executable, the simplest way to find out where references and definitions come from is using ld -y flag. For example:
如果可以重新链接可执行文件,找到引用和定义来源的最简单方法是使用ld -y标志。例如:
$ cat t.c
int main() { printf("Hello\n"); return 0; }
$ gcc t.c -Wl,-yprintf
/lib/libc.so.6: definition of printf
If you can not relink the executable, then run ldd on it, and then run 'nm -D' on all the libraries listed in order, and grep for the symbol you are interested in.
如果您无法重新链接可执行文件,则在其上运行ldd,然后对按顺序列出的所有库运行'nm -D',并为您感兴趣的符号grep。
#4
1
$LD_DEBUG=bindings my_program
That would print all the symbol bindings on the console.
这将打印控制台上的所有符号绑定。