Search results
Results from the WOW.Com Content Network
ldd (List Dynamic Dependencies) is a *nix utility that prints the shared libraries required by each program or shared library specified on the command line. [1] It was developed by Roland McGrath and Ulrich Drepper. [2] If some shared library is missing for any program, that program won't come up.
In most Unix-like systems, most of the machine code that makes up the dynamic linker is actually an external executable that the operating system kernel loads and executes first in a process address space newly constructed as a result of calling exec or posix_spawn functions. At link time, the path of the dynamic linker that should be used is ...
This is a list of commands from the GNU Core Utilities for Unix environments. These commands can be found on Unix operating systems and most Unix-like operating systems. GNU Core Utilities include basic file, shell and text manipulation utilities. Coreutils includes all of the basic command-line tools that are expected in a POSIX system.
An ELF file has two views: the program header shows the segments used at run time, whereas the section header lists the set of sections.. In computing, the Executable and Linkable Format [2] (ELF, formerly named Extensible Linking Format) is a common standard file format for executable files, object code, shared libraries, and core dumps.
GNU ld, part of the GNU Binary Utilities (binutils), is the GNU Project version of the Unix static linker. A linker script may be passed to GNU ld to exercise fine grain control of the linking process. [6] Two versions of ld are provided in binutils: the traditional GNU ld based on bfd, and a streamlined ELF-only version called gold.
On UNIX System V descendent systems, during program runtime the dynamic linker resolves weak symbols definitions like strong ones. For example, a binary is dynamically linked against libraries libfoo.so and libbar.so. libfoo defines symbol f and declares it as weak. libbar also defines f and declares it as strong.
A dynamic library is called by different names in different contexts. In Windows and OS/2 the technology is called dynamic-link library. In Unix-like user space, it's called dynamic shared object (DSO), or usually just shared object (SO). In Linux kernel it's called loadable kernel module (LKM). In OpenVMS, it's called shareable image. [2]
Dynamic loading is a mechanism by which a computer program can, at run time, load a library (or other binary) into memory, retrieve the addresses of functions and variables contained in the library, execute those functions or access those variables, and unload the library from memory.