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[Savannah-register-public] [task #6552] Submission of Real Time Executiv
From: |
Toufik SARNI |
Subject: |
[Savannah-register-public] [task #6552] Submission of Real Time Executive & Time-Sharing Kernel |
Date: |
Sat, 24 Feb 2007 08:45:49 +0000 |
User-agent: |
Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 2.0.50727) |
URL:
<http://savannah.gnu.org/task/?6552>
Summary: Submission of Real Time Executive & Time-Sharing
Kernel
Project: Savannah Administration
Submitted by: bastkernel
Submitted on: Saturday 02/24/2007 at 08:45
Should Start On: Saturday 02/24/2007 at 00:00
Should be Finished on: Tuesday 03/06/2007 at 00:00
Category: Project Approval
Priority: 5 - Normal
Status: None
Privacy: Public
Percent Complete: 0%
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
Effort: 0.00
_______________________________________________________
Details:
A new project has been registered at Savannah
This project account will remain inactive until a site admin approves or
discards the registration.
= Registration Administration =
While this item will be useful to track the registration process, *approving
or discarding the registration must be done using the specific Group
Administration
<https://savannah.gnu.org/siteadmin/groupedit.php?group_id=9133> page*,
accessible only to site administrators, effectively *logged as site
administrators* (superuser):
* Group Administration
<https://savannah.gnu.org/siteadmin/groupedit.php?group_id=9133>
= Registration Details =
* Name: *Real Time Executive & Time-Sharing Kernel*
* System Name: *bastkernel*
* Type: Official GNU software
* License: GNU General Public License V2 or later
----
==== Description: ====
http://www.bastkernel.fr.st/
source: http://www.bastkernel.fr.st/BastKernel_0.0.1.exe
We want in an educational goal, to improve
BastKernel version 0.0.1 that can be compiled as a hard real-time executive /
time-sharing kernel, based on intel(c) i586.
BastKernel is brievely the concatenation of three parts:
- Boot (Floppy is used)
- 16-bit part (detect the CPU, Memory, disks, Load GDT, switch to protected
mode)
- 32-bit part (load IDT, enable paging, memory manager, and process
initialisation for the time sharing mode).
***Actually for hard real time(one memory area both kernel & application)
- The scheduler implements the Rate Monotonic for the periodic tasks.
- The scrutation server is used to schedule in FIFO the sporadic tasks)
- The Priority Ceiling Protocol (PCP) is implemented to prevent the priority
inversion, and deadlock situations.
- API provided : (create tasks, semaphores, control the time)
-> TO DO: File system, hard disk & floppy drivers, mailbox, RPC, TPC/IP,
RS232 and improve the kernel loader.
***Time-Sharing (kernel and precess are separated)
- The scheduler works in Round Robin used TSS to switch
- Table to menage the 4Go of memory paging.
- Create process with stacks.
-> TO DO: Idem to real time part.
==== Other Software Required: ====
Borland Compilers, Microsoft MASM => Win32 environement.
_______________________________________________________
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<http://savannah.gnu.org/task/?6552>
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