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The LXR Cross Referencer for SOS

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001 /* Copyright (C) 2005  David Decotigny
002 
003    This program is free software; you can redistribute it and/or
004    modify it under the terms of the GNU General Public License
005    as published by the Free Software Foundation; either version 2
006    of the License, or (at your option) any later version.
007    
008    This program is distributed in the hope that it will be useful,
009    but WITHOUT ANY WARRANTY; without even the implied warranty of
010    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
011    GNU General Public License for more details.
012    
013    You should have received a copy of the GNU General Public License
014    along with this program; if not, write to the Free Software
015    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
016    USA. 
017 */
018 #ifndef _SOS_SYSCALL_H_
019 #define _SOS_SYSCALL_H_
020 
021 /**
022  * @file syscall.h
023  *
024  * SOS Syscalls identifiers and handler. The handler is called by the
025  * underlying assembler routine (see hwcore/syscall.h)
026  */
027 
028 
029 /**
030  * The user services offered by the SOS kernel
031  */
032 #define SOS_SYSCALL_ID_EXIT        256 /**< Args: retval, retval=NONE */
033 
034 #define SOS_SYSCALL_ID_BOCHS_WRITE 43  /**< Args: string, retval=num_printed */
035 
036 
037 #if defined(KERNEL_SOS) && !defined(ASM_SOURCE)
038 
039 #include <sos/errno.h>
040 #include <hwcore/cpu_context.h>
041 
042 /**
043  * "The" SOS syscall handler
044  *
045  * @param syscall_id The identifier of the syscall service
046  * @param user_ctxt The user context making the syscall
047  */
048 sos_ret_t sos_do_syscall(int syscall_id,
049                          const struct sos_cpu_state *user_ctxt);
050 
051 #endif /* defined(KERNEL_SOS) && !defined(ASM_SOURCE) */
052 
053 #endif /* _SOS_SYSCALL_H_ */

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