diff options
| author | Thomas Schwinge <thomas@schwinge.name> | 2010-11-29 13:41:16 +0100 |
|---|---|---|
| committer | Thomas Schwinge <thomas@schwinge.name> | 2010-11-29 13:41:16 +0100 |
| commit | 38368072b37bf73dda26dac536e4aa6cf13c67e4 (patch) | |
| tree | 383fb519f01899f394dafb52052227773a31e964 /system_call.mdwn | |
| parent | 6de855d9a8f8c25ffe6ad118012bd9a74e6c13fe (diff) | |
system_call: New.
Diffstat (limited to 'system_call.mdwn')
| -rw-r--r-- | system_call.mdwn | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/system_call.mdwn b/system_call.mdwn new file mode 100644 index 00000000..197889cb --- /dev/null +++ b/system_call.mdwn @@ -0,0 +1,19 @@ +[[!meta copyright="Copyright © 2010 Free Software Foundation, Inc."]] + +[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable +id="license" text="Permission is granted to copy, distribute and/or modify this +document under the terms of the GNU Free Documentation License, Version 1.2 or +any later version published by the Free Software Foundation; with no Invariant +Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license +is included in the section entitled [[GNU Free Documentation +License|/fdl]]."]]"""]] + +In an [[UNIX]]-like system, a *system call* (*syscall*) is used to request all +kinds of functionality from the operating system kernel. + +A [[microkernel]]-based system typically won't offer a lot of system calls -- +apart from one central one, and that is *send message* -- but instead [[RPC]]s +will be used instead. + +In the [[GNU Hurd|hurd]], a lot of what is traditionlly considered to be a UNIX +system call is implemented (primarily by means of [[RPC]]) inside [[glibc]]. |