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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]
An example is zlibc, [7] also known as uncompress.so, [a] which facilitates transparent decompression when used through the LD_PRELOAD hack; consequently, it is possible to read pre-compressed (gzipped) file data on BSD and Linux systems as if the files were not compressed, essentially allowing a user to add transparent compression to the ...
The GNU linker (or GNU ld) is the GNU Project's free software implementation of the Unix command ld. GNU ld runs the linker, which creates an executable file (or a library) from object files created during compilation of a software project. A linker script may be passed to GNU ld to exercise greater control over the linking process. [6]
On Linux systems using ELF-format executable files, the dynamic linker that manages the use of dynamic libraries is known as ld-linux.so. If the system is set up for the user to compile software themselves, header files will also be included to describe the programming interface of installed libraries.
Linux's transition to ELF was more or less forced due to the complex nature of building a.out shared libraries on that platform, which included the need to register the virtual address space at which the library was located with a central authority, as the a.out ld.so in Linux was unable to relocate shared libraries. [9]
The HLA v2.x language system is a command-line driven tool that consists of several components, including a shell program (e.g., hla.exe under Windows), the HLA language compiler (e.g., hlaparse.exe), a low-level translator (e.g., the HLABE, or HLA Back Engine), a linker (link.exe under Windows, ld under Linux), and other tools such as a ...
The Linux kernel is a free and open source, [11]: ... Finally, the GNU Linker (GNU ld) produces a statically linked executable kernel file called vmlinux.
The built-in commands of sash have all libraries linked statically, so unlike most shells on Linux, the standard UNIX commands do not rely on external libraries. For example, the copy command (cp) requires libc.so and ld-linux.so when built from GNU Core Utilities on Linux. If any of these libraries get corrupted, the coreutils cp command would ...