linux.hh revision 11320:42ecb523c64a 
1/*
2 * Copyright (c) 2003-2005 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: Korey Sewell
29 */
30
31#ifndef __ALPHA_ALPHA_LINUX_LINUX_HH__
32#define __ALPHA_ALPHA_LINUX_LINUX_HH__
33
34#include "kern/linux/linux.hh"
35
36/* AlphaLinux class contains static constants/definitions/misc.
37 * structures which are specific to the Linux OS AND the Alpha
38 * architecture
39 */
40class AlphaLinux : public Linux
41{
42  public:
43
44    /// This table maps the target open() flags to the corresponding
45    /// host open() flags.
46    static OpenFlagTransTable openFlagTable[];
47
48    /// Number of entries in openFlagTable[].
49    static const int NUM_OPEN_FLAGS;
50
51    //@{
52    /// open(2) flag values.
53    static const int TGT_O_RDONLY       = 00000000;     //!< O_RDONLY
54    static const int TGT_O_WRONLY       = 00000001;     //!< O_WRONLY
55    static const int TGT_O_RDWR         = 00000002;     //!< O_RDWR
56    static const int TGT_O_NONBLOCK     = 00000004;     //!< O_NONBLOCK
57    static const int TGT_O_APPEND       = 00000010;     //!< O_APPEND
58    static const int TGT_O_CREAT        = 00001000;     //!< O_CREAT
59    static const int TGT_O_TRUNC        = 00002000;     //!< O_TRUNC
60    static const int TGT_O_EXCL         = 00004000;     //!< O_EXCL
61    static const int TGT_O_NOCTTY       = 00010000;     //!< O_NOCTTY
62    static const int TGT_O_SYNC         = 00040000;     //!< O_SYNC
63    static const int TGT_O_DRD          = 00100000;     //!< O_DRD
64    static const int TGT_O_DIRECTIO     = 00200000;     //!< O_DIRECTIO
65    static const int TGT_O_CACHE        = 00400000;     //!< O_CACHE
66    static const int TGT_O_DSYNC        = 02000000;     //!< O_DSYNC
67    static const int TGT_O_RSYNC        = 04000000;     //!< O_RSYNC
68    //@}
69
70    /// For mmap().
71    static const unsigned TGT_MAP_ANONYMOUS = 0x10;
72    static const unsigned TGT_MAP_FIXED     = 0x100;
73
74    //@{
75    /// For getsysinfo().
76    static const unsigned GSI_PLATFORM_NAME = 103; //!< platform name as string
77    static const unsigned GSI_CPU_INFO      = 59; //!< CPU information
78    static const unsigned GSI_PROC_TYPE     = 60; //!< get proc_type
79    static const unsigned GSI_MAX_CPU       = 30; //!< max # CPUs on machine
80    static const unsigned GSI_CPUS_IN_BOX   = 55; //!< number of CPUs in system
81    static const unsigned GSI_PHYSMEM       = 19; //!< Physical memory in KB
82    static const unsigned GSI_CLK_TCK       = 42; //!< clock freq in Hz
83    static const unsigned GSI_IEEE_FP_CONTROL = 45;
84    //@}
85
86    //@{
87    /// For setsysinfo().
88    static const unsigned SSI_IEEE_FP_CONTROL = 14; //!< ieee_set_fp_control()
89    //@}
90
91    //@{
92    /// ioctl() command codes.
93    static const unsigned TGT_TIOCGETP   = 0x40067408;
94    static const unsigned TGT_TIOCSETP   = 0x80067409;
95    static const unsigned TGT_TIOCSETN   = 0x8006740a;
96    static const unsigned TGT_TIOCSETC   = 0x80067411;
97    static const unsigned TGT_TIOCGETC   = 0x40067412;
98    static const unsigned TGT_FIONREAD   = 0x4004667f;
99    static const unsigned TGT_TCGETS     = 0x402c7413;
100    static const unsigned TGT_TCGETA     = 0x40127417;
101    static const unsigned TGT_TCSETAW    = 0x80147419; // 2.6.15 kernel
102    //@}
103
104    static bool
105    isTtyReq(unsigned req)
106    {
107        switch (req) {
108          case TGT_TIOCGETP:
109          case TGT_TIOCSETP:
110          case TGT_TIOCSETN:
111          case TGT_TIOCSETC:
112          case TGT_TIOCGETC:
113          case TGT_TCGETS:
114          case TGT_TCGETA:
115          case TGT_TCSETAW:
116            return true;
117          default:
118            return false;
119        }
120    }
121
122    /// For table().
123    static const int TBL_SYSINFO = 12;
124
125    /// Resource constants for getrlimit() (overide some generics).
126    static const unsigned TGT_RLIMIT_NPROC = 8;
127    static const unsigned TGT_RLIMIT_AS = 7;
128    static const unsigned TGT_RLIMIT_NOFILE = 6;
129    static const unsigned TGT_RLIMIT_MEMLOCK = 9;
130
131    typedef struct {
132       int64_t  uptime;    /* Seconds since boot */
133       uint64_t loads[3];  /* 1, 5, and 15 minute load averages */
134       uint64_t totalram;  /* Total usable main memory size */
135       uint64_t freeram;   /* Available memory size */
136       uint64_t sharedram; /* Amount of shared memory */
137       uint64_t bufferram; /* Memory used by buffers */
138       uint64_t totalswap; /* Total swap space size */
139       uint64_t freeswap;  /* swap space still available */
140       uint16_t procs;     /* Number of current processes */
141       uint64_t totalhigh; /* Total high memory size */
142       uint64_t freehigh;  /* Available high memory size */
143       uint64_t mem_unit;  /* Memory unit size in bytes */
144    } tgt_sysinfo;
145
146    // For futex system call
147    static const unsigned TGT_EAGAIN      = 35;
148    static const unsigned TGT_EWOULDBLOCK = TGT_EAGAIN;
149};
150
151#endif // __ALPHA_ALPHA_LINUX_LINUX_HH__
152