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Plan 9 from User Space (also plan9port or p9p) is a port of many Plan 9 from Bell Labs libraries and applications to Unix-like operating systems.Currently it has been tested on a variety of operating systems, including Linux, macOS, FreeBSD, NetBSD, OpenBSD, Solaris and SunOS.
The term user space (or userland) refers to all code that runs outside the operating system's kernel. [2] User space usually refers to the various programs and libraries that the operating system uses to interact with the kernel: software that performs input/output, manipulates file system objects, application software, etc.
Plan 9 allows the user to collect the files (called names) from different directory trees in a single location. The resulting union directory behaves as the concatenation of the underlying directories (the order of concatenation can be controlled); if the constituent directories contain files having the same name, a listing of the union ...
9P (or the Plan 9 Filesystem Protocol or Styx) is a network protocol developed for the Plan 9 from Bell Labs distributed operating system as the means of connecting the components of a Plan 9 system.
The Linux API includes the kernel–user space API, which allows code in user space to access system resources and services of the Linux kernel. [3] It is composed of the system call interface of the Linux kernel and the subroutines in the C standard library.
One set of page tables includes both kernel-space and user-space addresses same as before, but it is only used when the system is running in kernel mode. The second set of page tables for use in user mode contains a copy of user-space and a minimal set of kernel-space mappings that provides the information needed to enter or exit system calls ...
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Plan 9 from User Space (aka plan9port) is a port of many Plan 9 programs from their native Plan 9 environment to Unix-like operating systems, including Mac OS X. acme stand alone complex - A distribution of the Inferno version of acme packaged for Windows, OS X and Linux and including many extras and tools (an IRC client, a wiki client, a web ...