operatingsystem.hh revision 5795:72ce7502dc71
1/* 2 * Copyright (c) 2004-2005 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: Gabe Black 29 */ 30 31#ifndef __KERN_OPERATINGSYSTEM_HH__ 32#define __KERN_OPERATINGSYSTEM_HH__ 33 34#include "config/full_system.hh" 35 36#include <inttypes.h> 37 38#if FULL_SYSTEM 39 40class OperatingSystem {}; 41 42#else //!FULL_SYSTEM 43#include <string> 44 45class LiveProcess; 46class ThreadContext; 47 48/// This struct is used to build an target-OS-dependent table that 49/// maps the target's open() flags to the host open() flags. 50struct OpenFlagTransTable { 51 int tgtFlag; //!< Target system flag value. 52 int hostFlag; //!< Corresponding host system flag value. 53}; 54 55 56/// 57/// This class encapsulates the types, structures, constants, 58/// functions, and syscall-number mappings specific to an operating system 59/// syscall interface. 60/// 61class OperatingSystem { 62 63 public: 64 65 /// Stat buffer. Note that we can't call it 'stat' since that 66 /// gets #defined to something else on some systems. This type 67 /// can be specialized by architecture specific "Linux" classes 68 typedef void tgt_stat; 69 70 // same for stat64 71 typedef void tgt_stat64; 72 73 /// Length of strings in struct utsname (plus 1 for null char). 74 static const int _SYS_NMLN = 65; 75 76 /// Interface struct for uname(). 77 typedef struct { 78 char sysname[_SYS_NMLN]; //!< System name. 79 char nodename[_SYS_NMLN]; //!< Node name. 80 char release[_SYS_NMLN]; //!< OS release. 81 char version[_SYS_NMLN]; //!< OS version. 82 char machine[_SYS_NMLN]; //!< Machine type. 83 } utsname; 84 85 /// Limit struct for getrlimit/setrlimit. 86 typedef struct { 87 uint64_t rlim_cur; //!< soft limit 88 uint64_t rlim_max; //!< hard limit 89 } rlimit; 90 91 /// For gettimeofday(). 92 typedef struct { 93 int64_t tv_sec; //!< seconds 94 int64_t tv_usec; //!< microseconds 95 } timeval; 96 97 // For writev/readv 98 typedef struct { 99 uint64_t iov_base; // void * 100 uint64_t iov_len; 101 } tgt_iovec; 102 103 104 /// For getrusage(). 105 typedef struct { 106 timeval ru_utime; //!< user time used 107 timeval ru_stime; //!< system time used 108 int64_t ru_maxrss; //!< max rss 109 int64_t ru_ixrss; //!< integral shared memory size 110 int64_t ru_idrss; //!< integral unshared data " 111 int64_t ru_isrss; //!< integral unshared stack " 112 int64_t ru_minflt; //!< page reclaims - total vmfaults 113 int64_t ru_majflt; //!< page faults 114 int64_t ru_nswap; //!< swaps 115 int64_t ru_inblock; //!< block input operations 116 int64_t ru_oublock; //!< block output operations 117 int64_t ru_msgsnd; //!< messages sent 118 int64_t ru_msgrcv; //!< messages received 119 int64_t ru_nsignals; //!< signals received 120 int64_t ru_nvcsw; //!< voluntary context switches 121 int64_t ru_nivcsw; //!< involuntary " 122 } rusage; 123 124 static int openSpecialFile(std::string path, LiveProcess *process, ThreadContext *tc); 125 126}; // class OperatingSystem 127 128 129#endif // FULL_SYSTEM 130 131#endif // __OPERATINGSYSTEM_HH__ 132