linux.hh revision 8767:e575781f71b8
1/* 2 * Copyright (c) 2004-2009 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: Ali Saidi 29 */ 30 31#ifndef __LINUX_HH__ 32#define __LINUX_HH__ 33 34#include "base/types.hh" 35#include "config/full_system.hh" 36 37#include <string> 38 39#include "kern/operatingsystem.hh" 40 41class ThreadContext; 42class LiveProcess; 43 44/// 45/// This class encapsulates the types, structures, constants, 46/// functions, and syscall-number mappings specific to the Alpha Linux 47/// syscall interface. 48/// 49class Linux : public OperatingSystem 50{ 51 52 public: 53 54 //@{ 55 /// Basic Linux types. 56 typedef uint64_t size_t; 57 typedef uint64_t off_t; 58 typedef int64_t time_t; 59 typedef int64_t clock_t; 60 typedef uint32_t uid_t; 61 typedef uint32_t gid_t; 62 //@} 63 64 /// Stat buffer. Note that we can't call it 'stat' since that 65 /// gets #defined to something else on some systems. This type 66 /// can be specialized by architecture specific "Linux" classes 67 typedef struct { 68 uint32_t st_dev; //!< device 69 uint32_t st_ino; //!< inode 70 uint32_t st_mode; //!< mode 71 uint32_t st_nlink; //!< link count 72 uint32_t st_uid; //!< owner's user ID 73 uint32_t st_gid; //!< owner's group ID 74 uint32_t st_rdev; //!< device number 75 int32_t _pad1; //!< for alignment 76 int64_t st_size; //!< file size in bytes 77 uint64_t st_atimeX; //!< time of last access 78 uint64_t st_mtimeX; //!< time of last modification 79 uint64_t st_ctimeX; //!< time of last status change 80 uint32_t st_blksize; //!< optimal I/O block size 81 int32_t st_blocks; //!< number of blocks allocated 82 uint32_t st_flags; //!< flags 83 uint32_t st_gen; //!< unknown 84 } tgt_stat; 85 86 // same for stat64 87 typedef struct { 88 uint64_t st_dev; 89 uint64_t st_ino; 90 uint64_t st_rdev; 91 int64_t st_size; 92 uint64_t st_blocks; 93 94 uint32_t st_mode; 95 uint32_t st_uid; 96 uint32_t st_gid; 97 uint32_t st_blksize; 98 uint32_t st_nlink; 99 uint32_t __pad0; 100 101 uint64_t st_atimeX; 102 uint64_t st_atime_nsec; 103 uint64_t st_mtimeX; 104 uint64_t st_mtime_nsec; 105 uint64_t st_ctimeX; 106 uint64_t st_ctime_nsec; 107 int64_t ___unused[3]; 108 } tgt_stat64; 109 110 /// Length of strings in struct utsname (plus 1 for null char). 111 static const int _SYS_NMLN = 65; 112 113 /// Interface struct for uname(). 114 struct utsname { 115 char sysname[_SYS_NMLN]; //!< System name. 116 char nodename[_SYS_NMLN]; //!< Node name. 117 char release[_SYS_NMLN]; //!< OS release. 118 char version[_SYS_NMLN]; //!< OS version. 119 char machine[_SYS_NMLN]; //!< Machine type. 120 }; 121 122 /// Limit struct for getrlimit/setrlimit. 123 struct rlimit { 124 uint64_t rlim_cur; //!< soft limit 125 uint64_t rlim_max; //!< hard limit 126 }; 127 128 /// For gettimeofday(). 129 struct timeval { 130 int64_t tv_sec; //!< seconds 131 int64_t tv_usec; //!< microseconds 132 }; 133 134 /// Clock ticks per second, for times(). 135 static const int M5_SC_CLK_TCK = 100; 136 137 /// For times(). 138 struct tms { 139 int64_t tms_utime; //!< user time 140 int64_t tms_stime; //!< system time 141 int64_t tms_cutime; //!< user time of children 142 int64_t tms_cstime; //!< system time of children 143 }; 144 145 // For writev/readv 146 struct tgt_iovec { 147 uint64_t iov_base; // void * 148 uint64_t iov_len; 149 }; 150 151 152 /// For getrusage(). 153 struct rusage { 154 struct timeval ru_utime; //!< user time used 155 struct timeval ru_stime; //!< system time used 156 int64_t ru_maxrss; //!< max rss 157 int64_t ru_ixrss; //!< integral shared memory size 158 int64_t ru_idrss; //!< integral unshared data " 159 int64_t ru_isrss; //!< integral unshared stack " 160 int64_t ru_minflt; //!< page reclaims - total vmfaults 161 int64_t ru_majflt; //!< page faults 162 int64_t ru_nswap; //!< swaps 163 int64_t ru_inblock; //!< block input operations 164 int64_t ru_oublock; //!< block output operations 165 int64_t ru_msgsnd; //!< messages sent 166 int64_t ru_msgrcv; //!< messages received 167 int64_t ru_nsignals; //!< signals received 168 int64_t ru_nvcsw; //!< voluntary context switches 169 int64_t ru_nivcsw; //!< involuntary " 170 }; 171 172 static int openSpecialFile(std::string path, LiveProcess *process, ThreadContext *tc); 173 static std::string procMeminfo(LiveProcess *process, ThreadContext *tc); 174 175}; // class Linux 176 177#endif // __LINUX_HH__ 178