how to display static libraries linked in executables ?

anctop · 04-12-2012, 07:41 PM

Hi,

I'd like to know how to display the information about what static (.a) libraries have been linked in an executable.

The command "ldd" shows only dynamic libs.

I've searched the web for answers. Some suggest using the "nm" command, but I get "nm: <filename>: no symbols". I guess this is because my executables are "strip"-ed.

Any other suggestion ?

pan64 · 04-13-2012, 01:38 AM

yes, you are right, those infos can be stripped, so static libraries cannot be identified. If you knew how that execucable was built you can have the list of libraries...

Valery Reznic · 04-13-2012, 02:36 PM

Quote:

Originally Posted by anctop

Hi,

I'd like to know how to display the information about what static (.a) libraries have been linked in an executable.

The command "ldd" shows only dynamic libs.

I've searched the web for answers. Some suggest using the "nm" command, but I get "nm: <filename>: no symbols". I guess this is because my executables are "strip"-ed.

Any other suggestion ?

If executable striped then is contains only code and next to nothing additional information.

Could you explain, why you want display static libraries linked into executable,
may be there is another way to achieve what you really need.

anctop · 04-13-2012, 09:41 PM

Quote:

Originally Posted by Valery Reznic

If executable striped then is contains only code and next to nothing additional information.

Could you explain, why you want display static libraries linked into executable,
may be there is another way to achieve what you really need.

Thank you for your attention.

The existing "ncurses" on my system contains only static libs.
Recently I built "--with-shared" and installed the lastest version.
When I remove the old tree, some full-screen executables (e.g. emacs) do not start because they depend on the terminfo of the old tree. Now I've to keep the old terminfo branch in order to fix the problem.
I'd like to find out which executables have been linked with the old static ncurses libs, such that I can re-build them with the shared libs of the new version.

Valery Reznic · 04-14-2012, 12:25 PM

Quote:

Originally Posted by anctop

Thank you for your attention.

The existing "ncurses" on my system contains only static libs.
Recently I built "--with-shared" and installed the lastest version.
When I remove the old tree, some full-screen executables (e.g. emacs) do not start because they depend on the terminfo of the old tree. Now I've to keep the old terminfo branch in order to fix the problem.
I'd like to find out which executables have been linked with the old static ncurses libs, such that I can re-build them with the shared libs of the new version.

You can try something like this

Code:

strings -a your_executable | grep /path/to/terminfo_dir

Your static ncurses library should contain path to the directory where termiinfo files located.
You can use strings + grep to search for such string in your executables

anctop · 04-14-2012, 10:42 PM

Quote:

Originally Posted by Valery Reznic

You can try something like this

Code:

strings -a your_executable | grep /path/to/terminfo_dir

Your static ncurses library should contain path to the directory where termiinfo files located.
You can use strings + grep to search for such string in your executables

Thank you very much. It works !

Valery Reznic · 04-14-2012, 11:46 PM

Quote:

Originally Posted by anctop

Thank you very much. It works !

Great! You are welcome