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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.
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.
GNU libiberty is a software library with a collection of subroutines used by various GNU programs. [1] The library is now a decommissioned GNU package. [2]It was originally intended to be a sort of standard cross-platform library, thus enabling it to be linked (using the usual Unix library form) by just passing "-liberty" to the compiler.
More recent Linux distributions are likely to use one of the more modern alternatives such as systemd. Below is a summary of the main init processes: Below is a summary of the main init processes: SysV init ( a.k.a. simply "init") is similar to the Unix and BSD init processes, from which it derived.
The Unix/Linux version is text user interface based—its message editor inspired the text editor Pico. The Windows (and formerly DOS) version is called PC-Pine . WebPine was available to individuals associated with the University of Washington (students, faculty , etc.)—a version of Pine implemented as a web application.
The GNU linker uses the -hname or -soname=name command-line options to specify the library name field. Internally, the linker will create a DT_SONAME field and populate it with name . Given any shared object file, one can use the following command to get the information from within the library file using objdump :
The Data Plane Development Kit (DPDK) is an open source software project managed by the Linux Foundation. It provides a set of data plane libraries and network interface controller polling-mode drivers for offloading TCP packet processing from the operating system kernel to processes running in user space. This offloading achieves higher ...
It chronicles the history of Unix and how it led to the creation of Linux. The book provides samples of code written in C, and learning exercises at the end of chapters. The author is a former writer for the Linux Weekly News [1] and the current maintainer for the Linux man pages project. [2]