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: Ali Saidi 29 */ 30 31#ifndef __LINUX_HH__ 32#define __LINUX_HH__ 33#include "config/full_system.hh" 34 35#if FULL_SYSTEM 36 37class Linux {}; 38 39#else //!FULL_SYSTEM 40 41#include <dirent.h> 42#include <errno.h> 43#include <fcntl.h> // for host open() flags 44#include <string.h> // for memset() 45#include <sys/stat.h> 46#include <sys/types.h> 47#include <unistd.h> 48 49#include "arch/isa_traits.hh" 50#include "sim/syscall_emul.hh" 51 52class TranslatingPort; 53 54/// 55/// This class encapsulates the types, structures, constants, 56/// functions, and syscall-number mappings specific to the Alpha Linux 57/// syscall interface. 58/// 59class Linux { 60 61 public: 62 63 //@{ 64 /// Basic Linux types. 65 typedef uint64_t size_t; 66 typedef uint64_t off_t; 67 typedef int64_t time_t; 68 typedef uint32_t uid_t; 69 typedef uint32_t gid_t; 70 //@} 71
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180 static void 181 copyOutStatBuf(TranslatingPort *mem, Addr addr, hst_stat *host) 182 { 183 using namespace TheISA; 184 185 TypedBufferArg<Linux::tgt_stat> tgt(addr); 186 187 tgt->st_dev = htog(host->st_dev); 188 tgt->st_ino = htog(host->st_ino); 189 tgt->st_mode = htog(host->st_mode); 190 tgt->st_nlink = htog(host->st_nlink); 191 tgt->st_uid = htog(host->st_uid); 192 tgt->st_gid = htog(host->st_gid); 193 tgt->st_rdev = htog(host->st_rdev); 194 tgt->st_size = htog(host->st_size); 195 tgt->st_atimeX = htog(host->st_atime); 196 tgt->st_mtimeX = htog(host->st_mtime); 197 tgt->st_ctimeX = htog(host->st_ctime); 198 tgt->st_blksize = htog(host->st_blksize); 199 tgt->st_blocks = htog(host->st_blocks); 200 201 tgt.copyOut(mem); 202 } 203#else 204 // Third version for bsd systems which no longer have any support for 205 // the old stat() call and stat() is actually a stat64() 206 static void 207 copyOutStatBuf(TranslatingPort *mem, Addr addr, hst_stat64 *host) 208 { 209 using namespace TheISA; 210 211 TypedBufferArg<Linux::tgt_stat> tgt(addr); 212 213 tgt->st_dev = htog(host->st_dev); 214 tgt->st_ino = htog(host->st_ino); 215 tgt->st_mode = htog(host->st_mode); 216 tgt->st_nlink = htog(host->st_nlink); 217 tgt->st_uid = htog(host->st_uid); 218 tgt->st_gid = htog(host->st_gid); 219 tgt->st_rdev = htog(host->st_rdev); 220 tgt->st_size = htog(host->st_size); 221 tgt->st_atimeX = htog(host->st_atime); 222 tgt->st_mtimeX = htog(host->st_mtime); 223 tgt->st_ctimeX = htog(host->st_ctime); 224 tgt->st_blksize = htog(host->st_blksize); 225 tgt->st_blocks = htog(host->st_blocks); 226 227 tgt.copyOut(mem); 228 } 229#endif 230 231 232 // Same for stat64 233 static void 234 copyOutStat64Buf(TranslatingPort *mem, int fd, Addr addr, hst_stat64 *host) 235 { 236 using namespace TheISA; 237 238 TypedBufferArg<Linux::tgt_stat64> tgt(addr); 239 240 // fd == 1 checks are because libc does some checks 241 // that the stdout is interactive vs. a file 242 // this makes it work on non-linux systems 243 if (fd == 1) 244 tgt->st_dev = htog((uint64_t)0xA); 245 else 246 tgt->st_dev = htog((uint64_t)host->st_dev); 247 // XXX What about STAT64_HAS_BROKEN_ST_INO ??? 248 tgt->st_ino = htog((uint64_t)host->st_ino); 249 if (fd == 1) 250 tgt->st_rdev = htog((uint64_t)0x880d); 251 else 252 tgt->st_rdev = htog((uint64_t)host->st_rdev); 253 tgt->st_size = htog((int64_t)host->st_size); 254 tgt->st_blocks = htog((uint64_t)host->st_blocks); 255 256 if (fd == 1) 257 tgt->st_mode = htog((uint32_t)0x2190); 258 else 259 tgt->st_mode = htog((uint32_t)host->st_mode); 260 tgt->st_uid = htog((uint32_t)host->st_uid); 261 tgt->st_gid = htog((uint32_t)host->st_gid); 262 tgt->st_blksize = htog((uint32_t)host->st_blksize); 263 tgt->st_nlink = htog((uint32_t)host->st_nlink); 264 tgt->tgt_st_atime = htog((uint64_t)host->st_atime); 265 tgt->tgt_st_mtime = htog((uint64_t)host->st_mtime); 266 tgt->tgt_st_ctime = htog((uint64_t)host->st_ctime); 267#if defined(STAT_HAVE_NSEC) 268 tgt->st_atime_nsec = htog(host->st_atime_nsec); 269 tgt->st_mtime_nsec = htog(host->st_mtime_nsec); 270 tgt->st_ctime_nsec = htog(host->st_ctime_nsec); 271#else 272 tgt->st_atime_nsec = 0; 273 tgt->st_mtime_nsec = 0; 274 tgt->st_ctime_nsec = 0; 275#endif 276 277 tgt.copyOut(mem); 278 } 279 280}; // class Linux 281 282 283#endif // FULL_SYSTEM 284 285#endif // __LINUX_HH__
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