linux.hh revision 3122 
1/*
2 * Copyright (c) 2004-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Ali Saidi
29 */
30
31#ifndef __LINUX_HH__
32#define __LINUX_HH__
33#include "config/full_system.hh"
34
35#if FULL_SYSTEM
36
37class Linux {};
38
39#else //!FULL_SYSTEM
40
41#include <inttypes.h>
42
43#include "kern/operatingsystem.hh"
44
45///
46/// This class encapsulates the types, structures, constants,
47/// functions, and syscall-number mappings specific to the Alpha Linux
48/// syscall interface.
49///
50class Linux : public OperatingSystem
51{
52
53  public:
54
55    //@{
56    /// Basic Linux types.
57    typedef uint64_t size_t;
58    typedef uint64_t off_t;
59    typedef int64_t time_t;
60    typedef uint32_t uid_t;
61    typedef uint32_t gid_t;
62    //@}
63
64    /// Stat buffer.  Note that we can't call it 'stat' since that
65    /// gets #defined to something else on some systems. This type
66    /// can be specialized by architecture specific "Linux" classes
67    typedef struct {
68        uint32_t	st_dev;		//!< device
69        uint32_t	st_ino;		//!< inode
70        uint32_t	st_mode;	//!< mode
71        uint32_t	st_nlink;	//!< link count
72        uint32_t	st_uid;		//!< owner's user ID
73        uint32_t	st_gid;		//!< owner's group ID
74        uint32_t	st_rdev;	//!< device number
75        int32_t		_pad1;		//!< for alignment
76        int64_t		st_size;	//!< file size in bytes
77        uint64_t	st_atimeX;	//!< time of last access
78        uint64_t	st_mtimeX;	//!< time of last modification
79        uint64_t	st_ctimeX;	//!< time of last status change
80        uint32_t	st_blksize;	//!< optimal I/O block size
81        int32_t		st_blocks;	//!< number of blocks allocated
82        uint32_t	st_flags;	//!< flags
83        uint32_t	st_gen;		//!< unknown
84    } tgt_stat;
85
86    // same for stat64
87    typedef struct {
88        uint64_t	st_dev;
89        uint64_t	st_ino;
90        uint64_t	st_rdev;
91        int64_t		st_size;
92        uint64_t	st_blocks;
93
94        uint32_t	st_mode;
95        uint32_t	st_uid;
96        uint32_t	st_gid;
97        uint32_t	st_blksize;
98        uint32_t	st_nlink;
99        uint32_t	__pad0;
100
101        uint64_t	st_atimeX;
102        uint64_t 	st_atime_nsec;
103        uint64_t	st_mtimeX;
104        uint64_t	st_mtime_nsec;
105        uint64_t	st_ctimeX;
106        uint64_t	st_ctime_nsec;
107        int64_t		___unused[3];
108    } tgt_stat64;
109
110    /// Length of strings in struct utsname (plus 1 for null char).
111    static const int _SYS_NMLN = 65;
112
113    /// Interface struct for uname().
114    struct utsname {
115        char sysname[_SYS_NMLN];	//!< System name.
116        char nodename[_SYS_NMLN];	//!< Node name.
117        char release[_SYS_NMLN];	//!< OS release.
118        char version[_SYS_NMLN];	//!< OS version.
119        char machine[_SYS_NMLN];	//!< Machine type.
120    };
121
122    /// Limit struct for getrlimit/setrlimit.
123    struct rlimit {
124        uint64_t  rlim_cur;	//!< soft limit
125        uint64_t  rlim_max;	//!< hard limit
126    };
127
128    /// For gettimeofday().
129    struct timeval {
130        int64_t tv_sec;		//!< seconds
131        int64_t tv_usec;	//!< microseconds
132    };
133
134    // For writev/readv
135    struct tgt_iovec {
136        uint64_t iov_base; // void *
137        uint64_t iov_len;
138    };
139
140
141    /// For getrusage().
142    struct rusage {
143        struct timeval ru_utime;	//!< user time used
144        struct timeval ru_stime;	//!< system time used
145        int64_t ru_maxrss;		//!< max rss
146        int64_t ru_ixrss;		//!< integral shared memory size
147        int64_t ru_idrss;		//!< integral unshared data "
148        int64_t ru_isrss;		//!< integral unshared stack "
149        int64_t ru_minflt;		//!< page reclaims - total vmfaults
150        int64_t ru_majflt;		//!< page faults
151        int64_t ru_nswap;		//!< swaps
152        int64_t ru_inblock;		//!< block input operations
153        int64_t ru_oublock;		//!< block output operations
154        int64_t ru_msgsnd;		//!< messages sent
155        int64_t ru_msgrcv;		//!< messages received
156        int64_t ru_nsignals;		//!< signals received
157        int64_t ru_nvcsw;		//!< voluntary context switches
158        int64_t ru_nivcsw;		//!< involuntary "
159    };
160
161};  // class Linux
162
163
164#endif // FULL_SYSTEM
165
166#endif // __LINUX_HH__
167