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| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-03-17 13:29:39 +0100 |
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| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-03-17 13:29:39 +0100 |
| commit | b43ea6ca9b24067ee5d4775383a09c46233119df (patch) | |
| tree | ca8834a185270e2896cf213daf8184e3eeb3450b /faq/system_port.mdwn | |
| parent | f4e44fd710c97c83c0626ce0334a2d4aedb729a2 (diff) | |
| download | web-b43ea6ca9b24067ee5d4775383a09c46233119df.tar.gz web-b43ea6ca9b24067ee5d4775383a09c46233119df.tar.bz2 web-b43ea6ca9b24067ee5d4775383a09c46233119df.zip | |
Categorize FAQs more
Diffstat (limited to 'faq/system_port.mdwn')
| -rw-r--r-- | faq/system_port.mdwn | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/faq/system_port.mdwn b/faq/system_port.mdwn deleted file mode 100644 index c831c36f..00000000 --- a/faq/system_port.mdwn +++ /dev/null @@ -1,47 +0,0 @@ -[[!meta copyright="Copyright © 2011 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]]."]]"""]] - -[[!meta title="Doing a GNU/Hurd System Port"]] - -How difficult is it to port the GNU/Hurd system to run on another architecture? - -The GNU/Hurd system consists of [[/Hurd]] servers running as user-space -processes on top of the [[GNU Mach|microkernel/mach/gnumach]] microkernel. The -system functionality is usually accessed through the -[[POSIX|posix_compatibility]] interface that is provided by [[/glibc]] and -[[/libpthread]]. - -A whole-system port involves touching all these components, with varying -degree, of course. - -For a CPU architecture port, the microkernel is the most involved part, -followed by glibc and the threading library. - -The original [[microkernel/Mach]] microkernel was portable to a number of -architectures which were a lot more popular at the beginning of the 1990s than -they are now. - -The GNU/Hurd system is currently available for the x86 architecture. This -includes emulators such as [[hurd/running/QEMU]] (or KVM), or -[[hurd/running/VirtualBox]]. Besides this, there is a port for the [[Xen -domU|microkernel/mach/gnumach/ports/xen]] *sub-architecture*. - -Further on, there are some [[unfinished porting -attempts|microkernel/mach/gnumach/ports]] for the Alpha, MIPS and PowerPC -architectures. These have not been completed due to little developer interest. - -Another option is to do the port at a different layer: port the Hurd servers to -not run on the GNU Mach microkernel, but instead on top of [[another -microkernel|which_microkernel]]. Or, even by providing a Mach emulation layer -on top of a monolithic kernel. For example, there could be a port for [[having -Mach run as a POSIX user-space process|open_issues/mach_on_top_of_posix]], or -by implementing the [[Mach IPC|microkernel/mach/ipc]] facility (as well as -several others) as Linux kernel modules. While there have been some -experiments, no such port has been completed yet. |