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Template:Linux layers - Revision history
2026-04-30T05:43:46Z
Revision history for this page on the wiki
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Setvadmin: 1 revision imported
2016-08-21T17:55:40Z
<p>1 revision imported</p>
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Setvadmin
http://wiki.ssdcougars.tv/index.php?title=Template:Linux_layers&diff=783&oldid=prev
Dsimic: Rather confusing addition
2016-04-24T08:47:35Z
<p>Rather confusing addition</p>
<p><b>New page</b></p><div>{| class="wikitable"<br />
|+ Various layers within Linux, also showing separation between the [[User space|userland]] and [[kernel space]]<br />
|-<br />
! rowspan=3 style="width: 10%" | User mode<br />
| colspan=1 style="width: 10%" | '''User applications'''<br />
| colspan=5 style="width: 80%" | For example, [[Bourne-again shell|bash]], [[LibreOffice]], [[Apache OpenOffice]], [[Blender (software)|Blender]], [[0 A.D. (video game)|0 A.D.]], [[Mozilla Firefox]], etc.<br />
|-<br />
| style="width: 20%; background-color: #ffffff" | Low-level system components:<br />
| colspan=1 style="width: 18%; background-color: #9db5f9"| '''System [[Daemon (computing)|daemons]]''':<br>''[[systemd]], [[runit]], logind, networkd, [[PulseAudio|soundd]], ...''<br />
| colspan=1 style="width: 18%; background-color: #9db5f9"| '''[[Windowing system]]''':<br>''[[X11]], [[Wayland (display server protocol)|Wayland]], [[Mir (software)|Mir]], [[SurfaceFlinger]] (Android)''<br />
| colspan=2 style="width: 36%; background-color: #ffac75" | '''Other libraries:'''<br>''[[GTK+]], [[Qt (software)|Qt]], [[Enlightenment Foundation Libraries|EFL]], [[Simple DirectMedia Layer|SDL]], [[Simple and Fast Multimedia Library|SFML]], [[FLTK]], [[GNUstep]]'', etc.<br />
| colspan=1 style="width: 18%; background-color: #9db5f9"| '''Graphics''':<br>''[[Mesa (computer graphics)|Mesa]]'', ''[[AMD Catalyst]]'', ...<br />
|- style="background-color: #96d5aa"<br />
| colspan=1 style="width: 10%" | '''[[C standard library]]'''<br />
| colspan=5 style="width: 80%" | <tt>open()</tt>, <tt>exec()</tt>, <tt>sbrk()</tt>, <tt>socket()</tt>, <tt>fopen()</tt>, <tt>calloc()</tt>, ... (up to 2000 [[subroutine]]s)<br>''[[GNU C Library|glibc]]'' aims to be [[POSIX]]/[[Single UNIX Specification|SUS]]-compatible, ''[[uClibc]]'' targets embedded systems, ''[[Bionic (software)|bionic]]'' written for [[Android (operating system)|Android]], etc.<br />
|-<br />
! rowspan=3 style="width: 10%" | Kernel mode<br />
| rowspan=3 style="width: 10%" | '''[[Linux kernel]]'''<br />
| colspan=5 style="width: 80%; background-color: #ffb7b7;" |<tt>[[stat (system call)|stat]]</tt>, <tt>[[splice (system call)|splice]]</tt>, <tt>[[dup (system call)|dup]]</tt>, <tt>[[read (system call)|read]]</tt>, <tt>[[open (system call)|open]]</tt>, <tt>[[ioctl]]</tt>, <tt>[[write (system call)|write]]</tt>, <tt>[[mmap]]</tt>, <tt>[[close (system call)|close]]</tt>, <tt>[[exit (system call)|exit]]</tt>, etc. (about 380 system calls)<br>The Linux kernel [[System call|System Call Interface]] (SCI, aims to be [[POSIX]]/[[Single UNIX Specification|SUS]]-compatible)<br />
|- style="background-color: #ffb7b7;"<br />
| style="width: 18%;" | [[Scheduling (computing)|Process scheduling]]<br>subsystem<br />
| style="width: 18%;" | IPC<br>subsystem<br />
| style="width: 18%;" | [[Memory management]]<br>subsystem<br />
| style="width: 18%;" | Virtual files<br>subsystem<br />
| style="width: 18%;" | Network<br>subsystem<br />
|- style="background-color: #ffb7b7;"<br />
| colspan=5 style="width: 80%;" | Other components: [[Advanced Linux Sound Architecture|ALSA]], [[Direct Rendering Infrastructure|DRI]], [[evdev]], [[Logical Volume Manager (Linux)|LVM]], [[device mapper]], [[Linux Network Scheduler]], [[Netfilter]]<br>[[Linux Security Modules]]: ''[[Security-Enhanced Linux|SELinux]]'', ''[[TOMOYO Linux|TOMOYO]]'', ''[[AppArmor]]'', ''[[Smack (Linux security module)|Smack]]''<br />
|- style="background-color: #ffd99c;"<br />
! colspan=7 style="width: 100%" | Hardware ([[Central processing unit|CPU]], [[Random-access memory|main memory]], [[Computer data storage|data storage devices]], etc.)<br />
|}<noinclude>{{documentation}}<!-- place category links on the /doc sub-page, not here --></noinclude></div>
Dsimic