linux.hh revision 10290:b7715fb7cf9f 
1/*
2 * Copyright (c) 2006 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: Korey Sewell
29 */
30
31#ifndef __ARCH_MIPS_LINUX_LINUX_HH__
32#define __ARCH_MIPS_LINUX_LINUX_HH__
33
34#include "kern/linux/linux.hh"
35
36class MipsLinux : public Linux
37{
38  public:
39
40    /// This table maps the target open() flags to the corresponding
41    /// host open() flags.
42    static OpenFlagTransTable openFlagTable[];
43
44    /// Number of entries in openFlagTable[].
45    static const int NUM_OPEN_FLAGS;
46
47    //@{
48    /// open(2) flag values.
49    static const int TGT_O_RDONLY       = 0x00000000;   //!< O_RDONLY
50    static const int TGT_O_WRONLY       = 0x00000001;   //!< O_WRONLY
51    static const int TGT_O_RDWR         = 0x00000002;   //!< O_RDWR
52    static const int TGT_O_NONBLOCK     = 0x00000080;   //!< O_NONBLOCK
53    static const int TGT_O_APPEND       = 0x00000008;   //!< O_APPEND
54    static const int TGT_O_CREAT        = 0x00000100;   //!< O_CREAT
55    static const int TGT_O_TRUNC        = 0x00000200;   //!< O_TRUNC
56    static const int TGT_O_EXCL         = 0x00000400;   //!< O_EXCL
57    static const int TGT_O_NOCTTY       = 0x00000800;   //!< O_NOCTTY
58    static const int TGT_O_SYNC         = 0x00000010;   //!< O_SYNC
59    static const int TGT_O_DRD          = 0x00010000;   //!< O_DRD
60    static const int TGT_O_DIRECTIO     = 0x00020000;   //!< O_DIRECTIO
61    static const int TGT_O_CACHE        = 0x00002000;   //!< O_CACHE
62    static const int TGT_O_DSYNC        = 0x00008000;   //!< O_DSYNC
63    static const int TGT_O_RSYNC        = 0x00040000;   //!< O_RSYNC
64    //@}
65
66    /// For mmap().
67    static const unsigned TGT_MAP_ANONYMOUS = 0x800;
68    static const unsigned TGT_MAP_FIXED     = 0x10;
69
70    //@{
71    /// For getsysinfo().
72    static const unsigned GSI_PLATFORM_NAME = 103; //!< platform name as string
73    static const unsigned GSI_CPU_INFO = 59;       //!< CPU information
74    static const unsigned GSI_PROC_TYPE = 60;      //!< get proc_type
75    static const unsigned GSI_MAX_CPU = 30;        //!< max # cpu's on this machine
76    static const unsigned GSI_CPUS_IN_BOX = 55;    //!< number of CPUs in system
77    static const unsigned GSI_PHYSMEM = 19;        //!< Physical memory in KB
78    static const unsigned GSI_CLK_TCK = 42;        //!< clock freq in Hz
79    //@}
80
81    //@{
82    /// For setsysinfo().
83    static const unsigned SSI_IEEE_FP_CONTROL = 14; //!< ieee_set_fp_control()
84    //@}
85
86    //@{
87    /// ioctl() command codes.
88    static const unsigned TGT_TCGETA     = 0x5401;
89    static const unsigned TGT_TCSETAW    = 0x5403;
90    static const unsigned TGT_TCGETS     = 0x540d;
91    static const unsigned TGT_FIONREAD   = 0x467f;
92    static const unsigned TGT_TIOCGETP   = 0x7408;
93    static const unsigned TGT_TIOCSETP   = 0x7409;
94    static const unsigned TGT_TIOCSETN   = 0x740a;
95    //@}
96
97    static bool
98    isTtyReq(unsigned req)
99    {
100        switch (req) {
101          case TGT_TIOCGETP:
102          case TGT_TIOCSETP:
103          case TGT_TIOCSETN:
104          case TGT_FIONREAD:
105          case TGT_TCGETS:
106          case TGT_TCGETA:
107          case TGT_TCSETAW:
108            return true;
109          default:
110            return false;
111        }
112    }
113
114    /// For table().
115    static const int TBL_SYSINFO = 12;
116
117    /// Resource constants for getrlimit() (overide some generics).
118    static const unsigned TGT_RLIMIT_NPROC = 8;
119    static const unsigned TGT_RLIMIT_AS = 6;
120    static const unsigned TGT_RLIMIT_RSS = 7;
121    static const unsigned TGT_RLIMIT_NOFILE = 5;
122    static const unsigned TGT_RLIMIT_MEMLOCK = 9;
123
124    /// Offset used to make sure that processes don't
125    /// assign themselves to process IDs reserved for
126    /// the root users.
127    static const int NUM_ROOT_PROCS = 2;
128
129    typedef struct {
130       int32_t  uptime;    /* Seconds since boot */
131       uint32_t loads[3];  /* 1, 5, and 15 minute load averages */
132       uint32_t totalram;  /* Total usable main memory size */
133       uint32_t freeram;   /* Available memory size */
134       uint32_t sharedram; /* Amount of shared memory */
135       uint32_t bufferram; /* Memory used by buffers */
136       uint32_t totalswap; /* Total swap space size */
137       uint32_t freeswap;  /* swap space still available */
138       uint16_t procs;     /* Number of current processes */
139       uint32_t totalhigh; /* Total high memory size */
140       uint32_t freehigh;  /* Available high memory size */
141       uint32_t mem_unit;  /* Memory unit size in bytes */
142    } tgt_sysinfo;
143
144};
145
146#endif
147