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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 
035 /**
036  * Basic low-level user thread API
037  */
038 #define SOS_SYSCALL_ID_NEW_THREAD  128 /**< Args: start_func start_arg1 start_arg2 stack_size, retval=errno */
039 #define SOS_SYSCALL_ID_NANOSLEEP   129 /**< Args: sec nanosec, retval=errno */
040 
041 
042 /**
043  * User memory mappings management
044  */
045 #define SOS_SYSCALL_ID_FORK        257 /**< Args: NONE, retval={father:child_pd, child:0} */
046 #define SOS_SYSCALL_ID_EXEC        258 /**< Args: ptr_exec_path strlen_exec_path, retval=errno */
047 #define SOS_SYSCALL_ID_FAKEMMAP    259 /**< Args: &hint len prot flags fd uoffs64_hi uoffs64_lo, retval=errno */
048 #define SOS_SYSCALL_ID_MUNMAP      260 /**< Args: start_uaddr size, retval=errno */
049 #define SOS_SYSCALL_ID_MPROTECT    261 /**< Args: start_uaddr size access_rights, retval=errno */
050 #define SOS_SYSCALL_ID_MRESIZE     262 /**< Args: old_uaddr old_size ptr_new_uaddr new_size flags, retval=errno */
051 
052 
053 /**
054  * Heap management
055  */
056 #define SOS_SYSCALL_ID_BRK         263 /**< Args: 0/new_top_heap, retval=top_heap */
057 
058 /**
059  * File system interface
060  */
061 #define SOS_SYSCALL_ID_MOUNT       555 /**< Args: uaddr_src srclen uaddr_dst dstlen uaddr_fstype flags uaddr_args, retval=errno */
062 #define SOS_SYSCALL_ID_UMOUNT      556 /**< Args: uaddr_path pathlen, retval=errno */
063 #define SOS_SYSCALL_ID_SYNC        557 /**< Args: none, retval=errno */
064 #define SOS_SYSCALL_ID_VFSTAT64    558 /**< Args: uaddr_path pathlen uaddr_vfstat_struct, retval=errno */
065 
066 #define SOS_SYSCALL_ID_OPEN        559 /**< Args: path pathlen flags access_rights, retval=fd */
067 #define SOS_SYSCALL_ID_CLOSE       560 /**< Args: fd, retval=errno */
068 #define SOS_SYSCALL_ID_READ        561 /**< Args: fd uaddr_buf uaddr_buflen, retval=errno */
069 #define SOS_SYSCALL_ID_READDIR     562 /**< Args: fd uaddr_dirent, retval=errno */
070 #define SOS_SYSCALL_ID_WRITE       563 /**< Args: fd uaddr_buf uaddr_buflen, retval=errno */
071 #define SOS_SYSCALL_ID_SEEK64      564 /**< Args: fd uaddr_offset whence, retval=errno */
072 #define SOS_SYSCALL_ID_FTRUNCATE64 565 /**< Args: fd length, retval=errno */
073 #define SOS_SYSCALL_ID_FSMMAP      566 /**< Args: &hint len prot flags fd uoffs64_hi uoffs64_lo, retval=errno */
074 #define SOS_SYSCALL_ID_FSYNC       567 /**< Args: fd, retval=errno */
075 #define SOS_SYSCALL_ID_FCNTL       568 /**< Args: fd cmd arg, retval=errno */
076 
077 #define SOS_SYSCALL_ID_CREAT       570 /**< Args: uaddr_path pathlen access_rights, retval=errno */
078 #define SOS_SYSCALL_ID_LINK        571 /**< Args: uaddr_oldpath oldpathlen uaddr_newpath newpathlen, retval=errno */
079 #define SOS_SYSCALL_ID_RENAME      572 /**< Args: uaddr_oldpath oldpathlen uaddr_newpath newpathlen, retval=errno */
080 #define SOS_SYSCALL_ID_UNLINK      573 /**< Args: uaddr_path pathlen, retval=errno */
081 #define SOS_SYSCALL_ID_SYMLINK     574 /**< Args: uaddr_path pathlen uaddr_target targetlen, retval=errno */
082 
083 #define SOS_SYSCALL_ID_MKDIR       576 /**< Args: uaddr_path pathlen access_rights, retval=errno */
084 #define SOS_SYSCALL_ID_RMDIR       577 /**< Args: uaddr_path pathlen, retval=errno */
085 
086 #define SOS_SYSCALL_ID_CHMOD       578 /**< Args: uaddr_path pathlen access_rights, retval=errno */
087 #define SOS_SYSCALL_ID_STAT64      579 /**< Args: uaddr_path pathlen nofollow uaddr_stat_struct, retval=errno */
088 
089 #define SOS_SYSCALL_ID_CHROOT      580 /**< Args: uaddr_path pathlen, retval=errno */
090 #define SOS_SYSCALL_ID_CHDIR       581 /**< Args: uaddr_path pathlen, retval=errno */
091 #define SOS_SYSCALL_ID_FCHDIR      582 /**< Args: fd, retval=errno */
092 
093 
094 #define SOS_SYSCALL_ID_BOCHS_WRITE 43  /**< Args: string, retval=num_printed */
095 
096 
097 #if defined(KERNEL_SOS) && !defined(ASM_SOURCE)
098 
099 #include <sos/errno.h>
100 #include <hwcore/cpu_context.h>
101 
102 /**
103  * "The" SOS syscall handler
104  *
105  * @param syscall_id The identifier of the syscall service
106  * @param user_ctxt The user context making the syscall
107  */
108 sos_ret_t sos_do_syscall(int syscall_id,
109                          const struct sos_cpu_state *user_ctxt);
110 
111 #endif /* defined(KERNEL_SOS) && !defined(ASM_SOURCE) */
112 
113 #endif /* _SOS_SYSCALL_H_ */

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