source: soft/giet_vm/giet_kernel/sys_handler.h @ 275

Last change on this file since 275 was 267, checked in by cfuguet, 10 years ago
  • Adding new task context information: THREAD INDEX.

This value can be accessed by USER applications to get the
thread index of the current task. This thread index
corresponds to the index in a vspace.

The value of this index can be forced in the vspace part
of the XML description file using the trdid field in the
task description. When this value is missing, for each
task, a value from 0 to N-1 will be assigned, where N is
the number of task in the vspace.

The user application access this value through the
giet_thread_id() function defined in the stdio library
which uses the SYSCALL_THREAD_ID to access the task
context information.

  • Supporting mono TTY platforms

When the GIET_MONO_TTY constant defined in the giet_config
file, contains a value different than 0, all tasks will
share the TTY[0]. If this is the case, in the stdio
library, the giet_tty_printf() function will take the TTY
hardware lock before writing
  • Property svn:executable set to *
File size: 1.6 KB
Line 
1///////////////////////////////////////////////////////////////////////////////////
2// File     : sys_handler.h
3// Date     : 01/04/2012
4// Author   : alain greiner and joel porquet
5// Copyright (c) UPMC-LIP6
6///////////////////////////////////////////////////////////////////////////////////
7
8#ifndef _SYS_HANDLER_H
9#define _SYS_HANDLER_H
10
11//////////////////////////////////////////////////////////////////////////////////
12//     Syscall Vector Table (indexed by syscall index)
13//////////////////////////////////////////////////////////////////////////////////
14
15extern const void * _syscall_vector[64];
16
17//////////////////////////////////////////////////////////////////////////////////
18// Prototypes os the syscall handlers (other than peripheral drivers)
19//////////////////////////////////////////////////////////////////////////////////
20
21void         _sys_ukn();
22void         _task_exit();
23void         _context_switch();
24unsigned int _local_task_id();
25unsigned int _global_task_id();
26unsigned int _thread_id();
27
28int          _tty_get_release_lock(unsigned int val);
29
30unsigned int _procs_number( unsigned int  cluster_id, 
31                            unsigned int* number );
32
33unsigned int _vobj_get_vbase( char*         vspace_name, 
34                              char*         vobj_name, 
35                              unsigned      vobj_type, 
36                              unsigned int* vobj_buffer);
37
38#endif
39
40// Local Variables:
41// tab-width: 4
42// c-basic-offset: 4
43// c-file-offsets:((innamespace . 0)(inline-open . 0))
44// indent-tabs-mode: nil
45// End:
46// vim: filetype=c:expandtab:shiftwidth=4:tabstop=4:softtabstop=4
47
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