src/arch/alpha/linux/linux.hh

   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 "arch/alpha/utility.hh"
  35 #include "kern/linux/linux.hh"
  36
  37 /* AlphaLinux class contains static constants/definitions/misc.
  38  * structures which are specific to the Linux OS AND the Alpha
  39  * architecture
  40  */
  41 class AlphaLinux : public Linux
  42 {
  43   public:
  44
  45     static const ByteOrder byteOrder = LittleEndianByteOrder;
  46
  47     static const int TGT_SIGHUP         = 0x000001;
  48     static const int TGT_SIGINT         = 0x000002;
  49     static const int TGT_SIGQUIT        = 0x000003;
  50     static const int TGT_SIGILL         = 0x000004;
  51     static const int TGT_SIGTRAP        = 0x000005;
  52     static const int TGT_SIGABRT        = 0x000006;
  53     static const int TGT_SIGEMT         = 0x000007;
  54     static const int TGT_SIGFPE         = 0x000008;
  55     static const int TGT_SIGKILL        = 0x000009;
  56     static const int TGT_SIGBUS         = 0x00000a;
  57     static const int TGT_SIGSEGV        = 0x00000b;
  58     static const int TGT_SIGSYS         = 0x00000c;
  59     static const int TGT_SIGPIPE        = 0x00000d;
  60     static const int TGT_SIGALRM        = 0x00000e;
  61     static const int TGT_SIGTERM        = 0x00000f;
  62     static const int TGT_SIGURG         = 0x000010;
  63     static const int TGT_SIGSTOP        = 0x000011;
  64     static const int TGT_SIGTSTP        = 0x000012;
  65     static const int TGT_SIGCONT        = 0x000013;
  66     static const int TGT_SIGCHLD        = 0x000014;
  67     static const int TGT_SIGTTIN        = 0x000015;
  68     static const int TGT_SIGTTOU        = 0x000016;
  69     static const int TGT_SIGIO          = 0x000017;
  70     static const int TGT_SIGXCPU        = 0x000018;
  71     static const int TGT_SIGXFSZ        = 0x000019;
  72     static const int TGT_SIGVTALRM      = 0x00001a;
  73     static const int TGT_SIGPROF        = 0x00001b;
  74     static const int TGT_SIGWINCH       = 0x00001c;
  75     static const int TGT_SIGINFO        = 0x00001d;
  76     static const int TGT_SIGUSR1        = 0x00001e;
  77     static const int TGT_SIGUSR2        = 0x00001f;
  78
  79     /// This table maps the target open() flags to the corresponding
  80     /// host open() flags.
  81     static SyscallFlagTransTable openFlagTable[];
  82
  83     /// Number of entries in openFlagTable[].
  84     static const int NUM_OPEN_FLAGS;
  85
  86     //@{
  87     /// open(2) flag values.
  88     static const int TGT_O_RDONLY       = 000000000;    //!< O_RDONLY
  89     static const int TGT_O_WRONLY       = 000000001;    //!< O_WRONLY
  90     static const int TGT_O_RDWR         = 000000002;    //!< O_RDWR
  91     static const int TGT_O_CREAT        = 000001000;    //!< O_CREAT
  92     static const int TGT_O_EXCL         = 000004000;    //!< O_EXCL
  93     static const int TGT_O_NOCTTY       = 000010000;    //!< O_NOCTTY
  94     static const int TGT_O_TRUNC        = 000002000;    //!< O_TRUNC
  95     static const int TGT_O_APPEND       = 000000010;    //!< O_APPEND
  96     static const int TGT_O_NONBLOCK     = 000000004;    //!< O_NONBLOCK
  97     static const int TGT_O_DSYNC        = 000040000;    //!< O_DSYNC
  98     static const int TGT_FASYNC         = 000020000;    //!< FASYNC
  99     static const int TGT_O_DIRECT       = 002000000;    //!< O_DIRECT
 100     static const int TGT_O_LARGEFILE    = 000400000;    //!< O_LARGEFILE
 101     static const int TGT_O_DIRECTORY    = 000100000;    //!< O_DIRECTORY
 102     static const int TGT_O_NOFOLLOW     = 000200000;    //!< O_NOFOLLOW
 103     static const int TGT_O_NOATIME      = 004000000;    //!< O_NOATIME
 104     static const int TGT_O_CLOEXEC      = 010000000;    //!< O_CLOEXEC
 105     static const int TGT_O_SYNC         = 020040000;    //!< O_SYNC
 106     static const int TGT_O_PATH         = 040000000;    //!< O_PATH
 107     //@}
 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     static void
 204     archClone(uint64_t flags,
 205               Process *pp, Process *cp,
 206               ThreadContext *ptc, ThreadContext *ctc,
 207               uint64_t stack, uint64_t tls)
 208     {
 209         AlphaISA::copyMiscRegs(ptc, ctc);
 210         if (stack)
 211             ctc->setIntReg(AlphaISA::StackPointerReg, stack);
 212     }
 213 };
 214
 215 #endif // __ALPHA_ALPHA_LINUX_LINUX_HH__