linux.hh revision 11383 
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    static const int TGT_SIGHUP         = 0x000001;
45    static const int TGT_SIGINT         = 0x000002;
46    static const int TGT_SIGQUIT        = 0x000003;
47    static const int TGT_SIGILL         = 0x000004;
48    static const int TGT_SIGTRAP        = 0x000005;
49    static const int TGT_SIGABRT        = 0x000006;
50    static const int TGT_SIGEMT         = 0x000007;
51    static const int TGT_SIGFPE         = 0x000008;
52    static const int TGT_SIGKILL        = 0x000009;
53    static const int TGT_SIGBUS         = 0x00000a;
54    static const int TGT_SIGSEGV        = 0x00000b;
55    static const int TGT_SIGSYS         = 0x00000c;
56    static const int TGT_SIGPIPE        = 0x00000d;
57    static const int TGT_SIGALRM        = 0x00000e;
58    static const int TGT_SIGTERM        = 0x00000f;
59    static const int TGT_SIGURG         = 0x000010;
60    static const int TGT_SIGSTOP        = 0x000011;
61    static const int TGT_SIGTSTP        = 0x000012;
62    static const int TGT_SIGCONT        = 0x000013;
63    static const int TGT_SIGCHLD        = 0x000014;
64    static const int TGT_SIGTTIN        = 0x000015;
65    static const int TGT_SIGTTOU        = 0x000016;
66    static const int TGT_SIGIO          = 0x000017;
67    static const int TGT_SIGXCPU        = 0x000018;
68    static const int TGT_SIGXFSZ        = 0x000019;
69    static const int TGT_SIGVTALRM      = 0x00001a;
70    static const int TGT_SIGPROF        = 0x00001b;
71    static const int TGT_SIGWINCH       = 0x00001c;
72    static const int TGT_SIGINFO        = 0x00001d;
73    static const int TGT_SIGUSR1        = 0x00001e;
74    static const int TGT_SIGUSR2        = 0x00001f;
75
76    /// This table maps the target open() flags to the corresponding
77    /// host open() flags.
78    static SyscallFlagTransTable openFlagTable[];
79
80    /// Number of entries in openFlagTable[].
81    static const int NUM_OPEN_FLAGS;
82
83    //@{
84    /// open(2) flag values.
85    static const int TGT_O_RDONLY       = 000000000;    //!< O_RDONLY
86    static const int TGT_O_WRONLY       = 000000001;    //!< O_WRONLY
87    static const int TGT_O_RDWR         = 000000002;    //!< O_RDWR
88    static const int TGT_O_CREAT        = 000001000;    //!< O_CREAT
89    static const int TGT_O_EXCL         = 000004000;    //!< O_EXCL
90    static const int TGT_O_NOCTTY       = 000010000;    //!< O_NOCTTY
91    static const int TGT_O_TRUNC        = 000002000;    //!< O_TRUNC
92    static const int TGT_O_APPEND       = 000000010;    //!< O_APPEND
93    static const int TGT_O_NONBLOCK     = 000000004;    //!< O_NONBLOCK
94    static const int TGT_O_DSYNC        = 000040000;    //!< O_DSYNC
95    static const int TGT_FASYNC         = 000020000;    //!< FASYNC
96    static const int TGT_O_DIRECT       = 002000000;    //!< O_DIRECT
97    static const int TGT_O_LARGEFILE    = 000400000;    //!< O_LARGEFILE
98    static const int TGT_O_DIRECTORY    = 000100000;    //!< O_DIRECTORY
99    static const int TGT_O_NOFOLLOW     = 000200000;    //!< O_NOFOLLOW
100    static const int TGT_O_NOATIME      = 004000000;    //!< O_NOATIME
101    static const int TGT_O_CLOEXEC      = 010000000;    //!< O_CLOEXEC
102    static const int TGT_O_SYNC         = 020040000;    //!< O_SYNC
103    static const int TGT_O_PATH         = 040000000;    //!< O_PATH
104    //@}
105
106    /// For mmap().
107    static SyscallFlagTransTable mmapFlagTable[];
108
109    static const unsigned TGT_MAP_SHARED        = 0x000001;
110    static const unsigned TGT_MAP_PRIVATE       = 0x000002;
111    static const unsigned TGT_MAP_ANON          = 0x000010;
112    static const unsigned TGT_MAP_DENYWRITE     = 0x002000;
113    static const unsigned TGT_MAP_EXECUTABLE    = 0x004000;
114    static const unsigned TGT_MAP_FILE          = 0x000000;
115    static const unsigned TGT_MAP_GROWSDOWN     = 0x001000;
116    static const unsigned TGT_MAP_HUGETLB       = 0x100000;
117    static const unsigned TGT_MAP_LOCKED        = 0x008000;
118    static const unsigned TGT_MAP_NONBLOCK      = 0x040000;
119    static const unsigned TGT_MAP_NORESERVE     = 0x010000;
120    static const unsigned TGT_MAP_POPULATE      = 0x020000;
121    static const unsigned TGT_MAP_STACK         = 0x080000;
122    static const unsigned TGT_MAP_ANONYMOUS     = 0x000010;
123    static const unsigned TGT_MAP_FIXED         = 0x000100;
124
125    static const unsigned NUM_MMAP_FLAGS;
126
127    //@{
128    /// For getsysinfo().
129    static const unsigned GSI_PLATFORM_NAME = 103; //!< platform name as string
130    static const unsigned GSI_CPU_INFO      = 59; //!< CPU information
131    static const unsigned GSI_PROC_TYPE     = 60; //!< get proc_type
132    static const unsigned GSI_MAX_CPU       = 30; //!< max # CPUs on machine
133    static const unsigned GSI_CPUS_IN_BOX   = 55; //!< number of CPUs in system
134    static const unsigned GSI_PHYSMEM       = 19; //!< Physical memory in KB
135    static const unsigned GSI_CLK_TCK       = 42; //!< clock freq in Hz
136    static const unsigned GSI_IEEE_FP_CONTROL = 45;
137    //@}
138
139    //@{
140    /// For setsysinfo().
141    static const unsigned SSI_IEEE_FP_CONTROL = 14; //!< ieee_set_fp_control()
142    //@}
143
144    //@{
145    /// ioctl() command codes.
146    static const unsigned TGT_TIOCGETP   = 0x40067408;
147    static const unsigned TGT_TIOCSETP   = 0x80067409;
148    static const unsigned TGT_TIOCSETN   = 0x8006740a;
149    static const unsigned TGT_TIOCSETC   = 0x80067411;
150    static const unsigned TGT_TIOCGETC   = 0x40067412;
151    static const unsigned TGT_FIONREAD   = 0x4004667f;
152    static const unsigned TGT_TCGETS     = 0x402c7413;
153    static const unsigned TGT_TCGETA     = 0x40127417;
154    static const unsigned TGT_TCSETAW    = 0x80147419; // 2.6.15 kernel
155    //@}
156
157    static bool
158    isTtyReq(unsigned req)
159    {
160        switch (req) {
161          case TGT_TIOCGETP:
162          case TGT_TIOCSETP:
163          case TGT_TIOCSETN:
164          case TGT_TIOCSETC:
165          case TGT_TIOCGETC:
166          case TGT_TCGETS:
167          case TGT_TCGETA:
168          case TGT_TCSETAW:
169            return true;
170          default:
171            return false;
172        }
173    }
174
175    /// For table().
176    static const int TBL_SYSINFO = 12;
177
178    /// Resource constants for getrlimit() (overide some generics).
179    static const unsigned TGT_RLIMIT_NPROC = 8;
180    static const unsigned TGT_RLIMIT_AS = 7;
181    static const unsigned TGT_RLIMIT_NOFILE = 6;
182    static const unsigned TGT_RLIMIT_MEMLOCK = 9;
183
184    typedef struct {
185       int64_t  uptime;    /* Seconds since boot */
186       uint64_t loads[3];  /* 1, 5, and 15 minute load averages */
187       uint64_t totalram;  /* Total usable main memory size */
188       uint64_t freeram;   /* Available memory size */
189       uint64_t sharedram; /* Amount of shared memory */
190       uint64_t bufferram; /* Memory used by buffers */
191       uint64_t totalswap; /* Total swap space size */
192       uint64_t freeswap;  /* swap space still available */
193       uint16_t procs;     /* Number of current processes */
194       uint64_t totalhigh; /* Total high memory size */
195       uint64_t freehigh;  /* Available high memory size */
196       uint64_t mem_unit;  /* Memory unit size in bytes */
197    } tgt_sysinfo;
198
199    // For futex system call
200    static const unsigned TGT_EAGAIN      = 35;
201    static const unsigned TGT_EWOULDBLOCK = TGT_EAGAIN;
202};
203
204#endif // __ALPHA_ALPHA_LINUX_LINUX_HH__
205