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| author | Joshua Branson <jbranso@fastmail.com> | 2018-11-26 11:51:44 -0500 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2018-11-27 22:14:38 +0100 |
| commit | bc652bac4ffedfb0444100a027727a5ea9dcee75 (patch) | |
| tree | 35bd136c68dfc6b170d5f359306ff5465c4309dd /system_call.mdwn | |
| parent | 28b24f2286a8fdea2670cfacbdd252a697dbb10f (diff) | |
| download | web-bc652bac4ffedfb0444100a027727a5ea9dcee75.tar.gz web-bc652bac4ffedfb0444100a027727a5ea9dcee75.tar.bz2 web-bc652bac4ffedfb0444100a027727a5ea9dcee75.zip | |
I added mach_msg to the gnumach syscall page. I tried to add some more information to the rpc and syscall pages.
Diffstat (limited to 'system_call.mdwn')
| -rw-r--r-- | system_call.mdwn | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/system_call.mdwn b/system_call.mdwn index 45ed9dbe..d8a465b4 100644 --- a/system_call.mdwn +++ b/system_call.mdwn @@ -10,11 +10,13 @@ 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. +kinds of functionality from the operating system kernel. On GNU/Linux, glibc +translates function calls to system calls by packing arguments appropriately +and using that trap or syscall instruction. 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. +apart from one central one, and that is *send message* (mach_msg) -- but +instead [[RPC]]s will be used instead. See [[GNU Mach's system calls|microkernel/mach/gnumach/interface/syscall]]. In the [[GNU Hurd|hurd]], a lot of what is traditionlly considered to be a UNIX |