linux.hh revision 9141 
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 getrusage().
88    static const int TGT_RUSAGE_SELF     = 0;
89    static const int TGT_RUSAGE_CHILDREN = -1;
90    static const int TGT_RUSAGE_BOTH     = -2;
91    //@}
92
93    //@{
94    /// For setsysinfo().
95    static const unsigned SSI_IEEE_FP_CONTROL = 14; //!< ieee_set_fp_control()
96    //@}
97
98    //@{
99    /// ioctl() command codes.
100    static const unsigned TGT_TIOCGETP   = 0x40067408;
101    static const unsigned TGT_TIOCSETP   = 0x80067409;
102    static const unsigned TGT_TIOCSETN   = 0x8006740a;
103    static const unsigned TGT_TIOCSETC   = 0x80067411;
104    static const unsigned TGT_TIOCGETC   = 0x40067412;
105    static const unsigned TGT_FIONREAD   = 0x4004667f;
106    static const unsigned TGT_TCGETS     = 0x402c7413;
107    static const unsigned TGT_TCGETA     = 0x40127417;
108    static const unsigned TGT_TCSETAW    = 0x80147419; // 2.6.15 kernel
109    //@}
110
111    static bool
112    isTtyReq(unsigned req)
113    {
114        switch (req) {
115          case TGT_TIOCGETP:
116          case TGT_TIOCSETP:
117          case TGT_TIOCSETN:
118          case TGT_TIOCSETC:
119          case TGT_TIOCGETC:
120          case TGT_TCGETS:
121          case TGT_TCGETA:
122          case TGT_TCSETAW:
123            return true;
124          default:
125            return false;
126        }
127    }
128
129    /// For table().
130    static const int TBL_SYSINFO = 12;
131
132    /// Resource enumeration for getrlimit().
133    enum rlimit_resources {
134        TGT_RLIMIT_CPU = 0,
135        TGT_RLIMIT_FSIZE = 1,
136        TGT_RLIMIT_DATA = 2,
137        TGT_RLIMIT_STACK = 3,
138        TGT_RLIMIT_CORE = 4,
139        TGT_RLIMIT_RSS = 5,
140        TGT_RLIMIT_NOFILE = 6,
141        TGT_RLIMIT_AS = 7,
142        TGT_RLIMIT_VMEM = 7,
143        TGT_RLIMIT_NPROC = 8,
144        TGT_RLIMIT_MEMLOCK = 9,
145        TGT_RLIMIT_LOCKS = 10
146    };
147
148    typedef struct {
149       int64_t  uptime;    /* Seconds since boot */
150       uint64_t loads[3];  /* 1, 5, and 15 minute load averages */
151       uint64_t totalram;  /* Total usable main memory size */
152       uint64_t freeram;   /* Available memory size */
153       uint64_t sharedram; /* Amount of shared memory */
154       uint64_t bufferram; /* Memory used by buffers */
155       uint64_t totalswap; /* Total swap space size */
156       uint64_t freeswap;  /* swap space still available */
157       uint16_t procs;     /* Number of current processes */
158       uint64_t totalhigh; /* Total high memory size */
159       uint64_t freehigh;  /* Available high memory size */
160       uint64_t mem_unit;  /* Memory unit size in bytes */
161    } tgt_sysinfo;
162
163    // For futex system call
164    static const unsigned TGT_EAGAIN      = 35;
165    static const unsigned TGT_EWOULDBLOCK = TGT_EAGAIN;
166};
167
168#endif // __ALPHA_ALPHA_LINUX_LINUX_HH__
169