Contents
How do you check if a library is statically linked?
To see which symbols come from static libraries requires running nm against those libraries to get a list of the symbols (functions, etc.) in them, then comparing them to what your list of symbols from nm . You compare lists with the comm command. See man comm for details.
You can’t statically link a shared library (or dynamically link a static one). The flag -static will force the linker to use static libraries (. a) instead of shared (. so) ones.
How do you link a library in Makefile?
What you can do is, have -L/usr/local/lib/ in your makefile as one of the variables. And then you can have -lYARP_OS appended to the LDLIBS. -L is for path to the lib and -l is the lib name here libYARP_OS. a will be passed as -lYARP_OS .
What is the difference between shared and static library?
They are usually faster than the shared libraries because a set of commonly used object files is put into a single library executable file. One can build multiple executables without the need to recompile the file….Shared Libraries :
| properties | Static library | Shared library |
|---|---|---|
| Means | Performed by linkers | Performed by operating System |
How to display static libraries linked in executables?
The command “ldd” shows only dynamic libs. I’ve searched the web for answers. Some suggest using the “nm” command, but I get “nm: : no symbols”. I guess this is because my executables are “strip”-ed. Any other suggestion ? Click here to see the post LQ members have rated as the most helpful post in this thread.
Is there a way to get static library list?
Unless a given compiler stores some sort of meta data inside the binary then, no. A static library is code that is directly compiled into the binary. There is no way to get the list of static libraries inside some ELF executable. Because for the linker, a static library is just used as a “lazy” set of members.
How can I find out what libraries an executable depends on?
To find out what libraries a particular executable depends on, you can use ldd command. This command invokes dynamic linker to find out library dependencies of an executable. > $ ldd /path/to/program
How are static libraries used in an ELF executable?
Because for the linker, a static library is just used as a “lazy” set of members. So the resulting ELF executable would only contain the members needed to link it. So members like foo2.o of libfoo.a are linked as if object file foo2.o was linked into the executable (provided some symbol defined in foo2 is needed, i.e. is referenced somewhere).