/* * Copyright (c) 2003-2005 The Regents of The University of Michigan * Copyright (c) 2007-2008 The Florida State University * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer; * redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution; * neither the name of the copyright holders nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * Authors: Korey Sewell * Stephen Hines */ #include "arch/arm/linux/linux.hh" #include "arch/arm/linux/process.hh" #include "arch/arm/isa_traits.hh" #include "base/trace.hh" #include "cpu/thread_context.hh" #include "kern/linux/linux.hh" #include "sim/process.hh" #include "sim/syscall_emul.hh" #include "sim/system.hh" using namespace std; using namespace ArmISA; /// Target uname() handler. static SyscallReturn unameFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { TypedBufferArg name(process->getSyscallArg(tc, 0)); strcpy(name->sysname, "Linux"); strcpy(name->nodename, "m5.eecs.umich.edu"); strcpy(name->release, "2.6.16.19"); strcpy(name->version, "#1 Mon Aug 18 11:32:15 EDT 2003"); strcpy(name->machine, "arm"); name.copyOut(tc->getMemPort()); return 0; } SyscallDesc ArmLinuxProcess::syscallDescs[] = { /* 0 */ SyscallDesc("syscall", unimplementedFunc), /* 1 */ SyscallDesc("exit", exitFunc), /* 2 */ SyscallDesc("fork", unimplementedFunc), /* 3 */ SyscallDesc("read", readFunc), /* 4 */ SyscallDesc("write", writeFunc), /* 5 */ SyscallDesc("open", openFunc), /* 6 */ SyscallDesc("close", closeFunc), /* 7 */ SyscallDesc("waitpid", unimplementedFunc), //??? /* 8 */ SyscallDesc("creat", unimplementedFunc), /* 9 */ SyscallDesc("link", unimplementedFunc), /* 10 */ SyscallDesc("unlink", unlinkFunc), /* 11 */ SyscallDesc("execve", unimplementedFunc), /* 12 */ SyscallDesc("chdir", unimplementedFunc), /* 13 */ SyscallDesc("time", unimplementedFunc), /* 14 */ SyscallDesc("mknod", unimplementedFunc), /* 15 */ SyscallDesc("chmod", chmodFunc), /* 16 */ SyscallDesc("lchown", chownFunc), /* 17 */ SyscallDesc("break", brkFunc), //??? /* 18 */ SyscallDesc("unused#18", unimplementedFunc), //??? /* 19 */ SyscallDesc("lseek", lseekFunc), /* 20 */ SyscallDesc("getpid", getpidFunc), /* 21 */ SyscallDesc("mount", unimplementedFunc), /* 22 */ SyscallDesc("umount", unimplementedFunc), /* 23 */ SyscallDesc("setuid", setuidFunc), /* 24 */ SyscallDesc("getuid", getuidFunc), /* 25 */ SyscallDesc("stime", unimplementedFunc), /* 26 */ SyscallDesc("ptrace", unimplementedFunc), /* 27 */ SyscallDesc("alarm", unimplementedFunc), /* 28 */ SyscallDesc("unused#28", unimplementedFunc), /* 29 */ SyscallDesc("pause", unimplementedFunc), /* 30 */ SyscallDesc("utime", unimplementedFunc), /* 31 */ SyscallDesc("stty", unimplementedFunc), /* 32 */ SyscallDesc("gtty", unimplementedFunc), /* 33 */ SyscallDesc("access", unimplementedFunc), /* 34 */ SyscallDesc("nice", unimplementedFunc), /* 35 */ SyscallDesc("ftime", unimplementedFunc), /* 36 */ SyscallDesc("sync", unimplementedFunc), /* 37 */ SyscallDesc("kill", ignoreFunc), /* 38 */ SyscallDesc("rename", unimplementedFunc), /* 39 */ SyscallDesc("mkdir", unimplementedFunc), /* 40 */ SyscallDesc("rmdir", unimplementedFunc), /* 41 */ SyscallDesc("dup", unimplementedFunc), /* 42 */ SyscallDesc("pipe", unimplementedFunc), /* 43 */ SyscallDesc("times", unimplementedFunc), /* 44 */ SyscallDesc("prof", unimplementedFunc), /* 45 */ SyscallDesc("brk", brkFunc), /* 46 */ SyscallDesc("setgid", unimplementedFunc), /* 47 */ SyscallDesc("getgid", getgidFunc), /* 48 */ SyscallDesc("signal", ignoreFunc), /* 49 */ SyscallDesc("geteuid", geteuidFunc), /* 50 */ SyscallDesc("getegid", getegidFunc), /* 51 */ SyscallDesc("acct", unimplementedFunc), /* 52 */ SyscallDesc("umount2", unimplementedFunc), /* 53 */ SyscallDesc("lock", unimplementedFunc), /* 54 */ SyscallDesc("ioctl", ioctlFunc), /* 55 */ SyscallDesc("fcntl", fcntlFunc), /* 56 */ SyscallDesc("mpx", unimplementedFunc), /* 57 */ SyscallDesc("setpgid", unimplementedFunc), /* 58 */ SyscallDesc("ulimit", unimplementedFunc), /* 59 */ SyscallDesc("unused#59", unimplementedFunc), /* 60 */ SyscallDesc("umask", unimplementedFunc), /* 61 */ SyscallDesc("chroot", unimplementedFunc), /* 62 */ SyscallDesc("ustat", unimplementedFunc), /* 63 */ SyscallDesc("dup2", unimplementedFunc), /* 64 */ SyscallDesc("getppid", getpagesizeFunc), /* 65 */ SyscallDesc("getpgrp", unimplementedFunc), /* 66 */ SyscallDesc("setsid", unimplementedFunc), /* 67 */ SyscallDesc("sigaction",unimplementedFunc), /* 68 */ SyscallDesc("sgetmask", unimplementedFunc), /* 69 */ SyscallDesc("ssetmask", unimplementedFunc), /* 70 */ SyscallDesc("setreuid", unimplementedFunc), /* 71 */ SyscallDesc("setregid", unimplementedFunc), /* 72 */ SyscallDesc("sigsuspend", unimplementedFunc), /* 73 */ SyscallDesc("sigpending", unimplementedFunc), /* 74 */ SyscallDesc("sethostname", ignoreFunc), /* 75 */ SyscallDesc("setrlimit", unimplementedFunc), /* 76 */ SyscallDesc("getrlimit", unimplementedFunc), /* 77 */ SyscallDesc("getrusage", unimplementedFunc), /* 78 */ SyscallDesc("gettimeofday", unimplementedFunc), /* 79 */ SyscallDesc("settimeofday", unimplementedFunc), /* 80 */ SyscallDesc("getgroups", unimplementedFunc), /* 81 */ SyscallDesc("setgroups", unimplementedFunc), /* 82 */ SyscallDesc("reserved#82", unimplementedFunc), /* 83 */ SyscallDesc("symlink", unimplementedFunc), /* 84 */ SyscallDesc("unused#84", unimplementedFunc), /* 85 */ SyscallDesc("readlink", unimplementedFunc), /* 86 */ SyscallDesc("uselib", unimplementedFunc), /* 87 */ SyscallDesc("swapon", gethostnameFunc), /* 88 */ SyscallDesc("reboot", unimplementedFunc), /* 89 */ SyscallDesc("readdir", unimplementedFunc), /* 90 */ SyscallDesc("mmap", mmapFunc), /* 91 */ SyscallDesc("munmap",munmapFunc), /* 92 */ SyscallDesc("truncate", truncateFunc), /* 93 */ SyscallDesc("ftruncate", ftruncateFunc), /* 94 */ SyscallDesc("fchmod", unimplementedFunc), /* 95 */ SyscallDesc("fchown", unimplementedFunc), /* 96 */ SyscallDesc("getpriority", unimplementedFunc), /* 97 */ SyscallDesc("setpriority", unimplementedFunc), /* 98 */ SyscallDesc("profil", unimplementedFunc), /* 99 */ SyscallDesc("statfs", unimplementedFunc), /* 100 */ SyscallDesc("fstatfs", unimplementedFunc), /* 101 */ SyscallDesc("ioperm", unimplementedFunc), /* 102 */ SyscallDesc("socketcall", unimplementedFunc), /* 103 */ SyscallDesc("syslog", unimplementedFunc), /* 104 */ SyscallDesc("setitimer", unimplementedFunc), /* 105 */ SyscallDesc("getitimer", unimplementedFunc), /* 106 */ SyscallDesc("stat", statFunc), /* 107 */ SyscallDesc("lstat", unimplementedFunc), /* 108 */ SyscallDesc("fstat", fstatFunc), /* 109 */ SyscallDesc("unused#109", unimplementedFunc), /* 110 */ SyscallDesc("iopl", unimplementedFunc), /* 111 */ SyscallDesc("vhangup", unimplementedFunc), /* 112 */ SyscallDesc("idle", ignoreFunc), /* 113 */ SyscallDesc("vm86", unimplementedFunc), /* 114 */ SyscallDesc("wait4", unimplementedFunc), /* 115 */ SyscallDesc("swapoff", unimplementedFunc), /* 116 */ SyscallDesc("sysinfo", unimplementedFunc), /* 117 */ SyscallDesc("ipc", unimplementedFunc), /* 118 */ SyscallDesc("fsync", unimplementedFunc), /* 119 */ SyscallDesc("sigreturn", unimplementedFunc), /* 120 */ SyscallDesc("clone", unimplementedFunc), /* 121 */ SyscallDesc("setdomainname", unimplementedFunc), /* 122 */ SyscallDesc("uname", unameFunc), /* 123 */ SyscallDesc("modify_ldt", unimplementedFunc), /* 124 */ SyscallDesc("adjtimex", unimplementedFunc), /* 125 */ SyscallDesc("mprotect", ignoreFunc), /* 126 */ SyscallDesc("sigprocmask", unimplementedFunc), /* 127 */ SyscallDesc("create_module", unimplementedFunc), /* 128 */ SyscallDesc("init_module", unimplementedFunc), /* 129 */ SyscallDesc("delete_module", unimplementedFunc), /* 130 */ SyscallDesc("get_kernel_syms", unimplementedFunc), /* 131 */ SyscallDesc("quotactl", unimplementedFunc), /* 132 */ SyscallDesc("getpgid", unimplementedFunc), /* 133 */ SyscallDesc("fchdir", unimplementedFunc), /* 134 */ SyscallDesc("bdflush", unimplementedFunc), /* 135 */ SyscallDesc("sysfs", unimplementedFunc), /* 136 */ SyscallDesc("personality", unimplementedFunc), /* 137 */ SyscallDesc("afs_syscall", unimplementedFunc), /* 138 */ SyscallDesc("setfsuid", unimplementedFunc), /* 139 */ SyscallDesc("setfsgid", unimplementedFunc), /* 140 */ SyscallDesc("llseek", unimplementedFunc), /* 141 */ SyscallDesc("getdents", unimplementedFunc), /* 142 */ SyscallDesc("newselect", unimplementedFunc), /* 143 */ SyscallDesc("flock", unimplementedFunc), /* 144 */ SyscallDesc("msync", unimplementedFunc), /* 145 */ SyscallDesc("readv", unimplementedFunc), /* 146 */ SyscallDesc("writev", writevFunc), /* 147 */ SyscallDesc("getsid", unimplementedFunc), /* 148 */ SyscallDesc("fdatasync", unimplementedFunc), /* 149 */ SyscallDesc("sysctl", unimplementedFunc), /* 150 */ SyscallDesc("mlock", unimplementedFunc), /* 151 */ SyscallDesc("munlock", unimplementedFunc), /* 152 */ SyscallDesc("mlockall", unimplementedFunc), /* 153 */ SyscallDesc("munlockall", unimplementedFunc), /* 154 */ SyscallDesc("sched_setparam", unimplementedFunc), /* 155 */ SyscallDesc("sched_getparam", unimplementedFunc), /* 156 */ SyscallDesc("sched_setscheduler", unimplementedFunc), /* 157 */ SyscallDesc("sched_getscheduler", unimplementedFunc), /* 158 */ SyscallDesc("sched_yield", unimplementedFunc), /* 159 */ SyscallDesc("sched_get_priority_max", unimplementedFunc), /* 160 */ SyscallDesc("sched_get_priority_min", unimplementedFunc), /* 161 */ SyscallDesc("sched_rr_get_interval", unimplementedFunc), /* 162 */ SyscallDesc("nanosleep", unimplementedFunc), /* 163 */ SyscallDesc("mremap", unimplementedFunc), // ARM-specific /* 164 */ SyscallDesc("setresuid", unimplementedFunc), /* 165 */ SyscallDesc("getresuid", unimplementedFunc), /* 166 */ SyscallDesc("vm862", unimplementedFunc), /* 167 */ SyscallDesc("query_module", unimplementedFunc), /* 168 */ SyscallDesc("poll", unimplementedFunc), /* 169 */ SyscallDesc("nfsservctl", unimplementedFunc), /* 170 */ SyscallDesc("setresgid", unimplementedFunc), /* 171 */ SyscallDesc("getresgid", unimplementedFunc), /* 172 */ SyscallDesc("prctl", unimplementedFunc), /* 173 */ SyscallDesc("rt_sigreturn", unimplementedFunc), /* 174 */ SyscallDesc("rt_sigaction", unimplementedFunc), /* 175 */ SyscallDesc("rt_sigprocmask", unimplementedFunc), /* 176 */ SyscallDesc("rt_sigpending", unimplementedFunc), /* 177 */ SyscallDesc("rt_sigtimedwait", unimplementedFunc), /* 178 */ SyscallDesc("rt_sigqueueinfo", ignoreFunc), /* 179 */ SyscallDesc("rt_sigsuspend", unimplementedFunc), /* 180 */ SyscallDesc("pread64", unimplementedFunc), /* 181 */ SyscallDesc("pwrite64", unimplementedFunc), /* 182 */ SyscallDesc("chown", unimplementedFunc), /* 183 */ SyscallDesc("getcwd", unimplementedFunc), /* 184 */ SyscallDesc("capget", unimplementedFunc), /* 185 */ SyscallDesc("capset", unimplementedFunc), /* 186 */ SyscallDesc("sigaltstack", unimplementedFunc), /* 187 */ SyscallDesc("sendfile", unimplementedFunc), /* 188 */ SyscallDesc("getpmsg", unimplementedFunc), /* 189 */ SyscallDesc("putpmsg", unimplementedFunc), /* 190 */ SyscallDesc("vfork", unimplementedFunc), /* 191 */ SyscallDesc("getrlimit", unimplementedFunc), /* 192 */ SyscallDesc("mmap2", mmapFunc), /* 193 */ SyscallDesc("truncate64", unimplementedFunc), /* 194 */ SyscallDesc("ftruncate64", unimplementedFunc), /* 195 */ SyscallDesc("stat64", unimplementedFunc), /* 196 */ SyscallDesc("lstat64", lstat64Func), /* 197 */ SyscallDesc("fstat64", fstat64Func), /* 198 */ SyscallDesc("lchown", unimplementedFunc), /* 199 */ SyscallDesc("getuid", getuidFunc), /* 200 */ SyscallDesc("getgid", getgidFunc), /* 201 */ SyscallDesc("geteuid", geteuidFunc), /* 202 */ SyscallDesc("getegid", getegidFunc), /* 203 */ SyscallDesc("setreuid", unimplementedFunc), /* 204 */ SyscallDesc("setregid", unimplementedFunc), /* 205 */ SyscallDesc("getgroups", unimplementedFunc), /* 206 */ SyscallDesc("setgroups", unimplementedFunc), /* 207 */ SyscallDesc("fchown", unimplementedFunc), /* 208 */ SyscallDesc("setresuid", unimplementedFunc), /* 209 */ SyscallDesc("getresuid", unimplementedFunc), /* 210 */ SyscallDesc("setresgid", unimplementedFunc), /* 211 */ SyscallDesc("getresgid", unimplementedFunc), /* 212 */ SyscallDesc("chown", unimplementedFunc), /* 213 */ SyscallDesc("setuid", unimplementedFunc), /* 214 */ SyscallDesc("setgid", unimplementedFunc), /* 215 */ SyscallDesc("setfsuid", unimplementedFunc), /* 216 */ SyscallDesc("setfsgid", unimplementedFunc), /* 217 */ SyscallDesc("getdents64", unimplementedFunc), /* 218 */ SyscallDesc("pivot_root", unimplementedFunc), /* 219 */ SyscallDesc("mincore", unimplementedFunc), /* 220 */ SyscallDesc("madvise", unimplementedFunc), /* 221 */ SyscallDesc("fcntl64", fcntl64Func), /* 222 */ SyscallDesc("tux", unimplementedFunc), /* 223 */ SyscallDesc("unknown#223", unimplementedFunc), /* 224 */ SyscallDesc("gettid", unimplementedFunc), /* 225 */ SyscallDesc("readahead", unimplementedFunc), /* 226 */ SyscallDesc("setxattr", unimplementedFunc), /* 227 */ SyscallDesc("lsetxattr", unimplementedFunc), /* 228 */ SyscallDesc("fsetxattr", unimplementedFunc), /* 229 */ SyscallDesc("getxattr", unimplementedFunc), /* 230 */ SyscallDesc("lgetxattr", unimplementedFunc), /* 231 */ SyscallDesc("fgetxattr", unimplementedFunc), /* 232 */ SyscallDesc("listxattr", unimplementedFunc), /* 233 */ SyscallDesc("llistxattr", unimplementedFunc), /* 234 */ SyscallDesc("flistxattr", unimplementedFunc), /* 235 */ SyscallDesc("removexattr", unimplementedFunc), /* 236 */ SyscallDesc("lremovexattr", unimplementedFunc), /* 237 */ SyscallDesc("fremovexattr", unimplementedFunc), /* 238 */ SyscallDesc("tkill", unimplementedFunc), /* 239 */ SyscallDesc("sendfile64", unimplementedFunc), /* 240 */ SyscallDesc("futex", unimplementedFunc), /* 241 */ SyscallDesc("sched_setaffinity", unimplementedFunc), /* 242 */ SyscallDesc("sched_getaffinity", unimplementedFunc), /* 243 */ SyscallDesc("io_setup", unimplementedFunc), /* 244 */ SyscallDesc("io_destory", unimplementedFunc), /* 245 */ SyscallDesc("io_getevents", unimplementedFunc), /* 246 */ SyscallDesc("io_submit", unimplementedFunc), /* 247 */ SyscallDesc("io_cancel", unimplementedFunc), /* 248 */ SyscallDesc("exit_group", exitFunc), /* 249 */ SyscallDesc("lookup_dcookie", unimplementedFunc), /* 250 */ SyscallDesc("epoll_create", unimplementedFunc), /* 251 */ SyscallDesc("epoll_ctl", unimplementedFunc), /* 252 */ SyscallDesc("epoll_wait", unimplementedFunc), /* 253 */ SyscallDesc("remap_file_pages", unimplementedFunc), /* 254 */ SyscallDesc("set_thread_area", unimplementedFunc), /* 255 */ SyscallDesc("get_thread_area", unimplementedFunc), /* 256 */ SyscallDesc("set_tid_address", unimplementedFunc), /* 257 */ SyscallDesc("timer_create", unimplementedFunc), /* 258 */ SyscallDesc("timer_settime", unimplementedFunc), /* 259 */ SyscallDesc("timer_gettime", unimplementedFunc), /* 260 */ SyscallDesc("timer_getoverrun", unimplementedFunc), /* 261 */ SyscallDesc("timer_delete", unimplementedFunc), /* 262 */ SyscallDesc("clock_settime", unimplementedFunc), /* 263 */ SyscallDesc("clock_gettime", unimplementedFunc), /* 264 */ SyscallDesc("clock_getres", unimplementedFunc), /* 265 */ SyscallDesc("clock_nanosleep", unimplementedFunc), /* 266 */ SyscallDesc("statfs64", unimplementedFunc), /* 267 */ SyscallDesc("fstatfs64", unimplementedFunc), /* 268 */ SyscallDesc("tgkill", unimplementedFunc), /* 269 */ SyscallDesc("utimes", unimplementedFunc), /* 270 */ SyscallDesc("arm_fadvise64_64", unimplementedFunc), /* 271 */ SyscallDesc("pciconfig_iobase", unimplementedFunc), /* 272 */ SyscallDesc("pciconfig_read", unimplementedFunc), /* 273 */ SyscallDesc("pciconfig_write", unimplementedFunc), /* 274 */ SyscallDesc("mq_open", unimplementedFunc), /* 275 */ SyscallDesc("mq_unlink", unimplementedFunc), /* 276 */ SyscallDesc("mq_timedsend", unimplementedFunc), /* 277 */ SyscallDesc("mq_timedreceive", unimplementedFunc), /* 278 */ SyscallDesc("mq_notify", unimplementedFunc), /* 279 */ SyscallDesc("mq_getsetattr", unimplementedFunc), /* 280 */ SyscallDesc("waitid", unimplementedFunc), /* 281 */ SyscallDesc("socket", unimplementedFunc), /* 282 */ SyscallDesc("bind", unimplementedFunc), /* 283 */ SyscallDesc("connect", unimplementedFunc), /* 284 */ SyscallDesc("listen", unimplementedFunc), /* 285 */ SyscallDesc("accept", unimplementedFunc), /* 286 */ SyscallDesc("getsockname", unimplementedFunc), /* 287 */ SyscallDesc("getpeername", unimplementedFunc), /* 288 */ SyscallDesc("socketpair", unimplementedFunc), /* 289 */ SyscallDesc("send", unimplementedFunc), /* 290 */ SyscallDesc("sendto", unimplementedFunc), /* 291 */ SyscallDesc("recv", unimplementedFunc), /* 292 */ SyscallDesc("recvfrom", unimplementedFunc), /* 293 */ SyscallDesc("shutdown", unimplementedFunc), /* 294 */ SyscallDesc("setsockopt", unimplementedFunc), /* 295 */ SyscallDesc("getsockopt", unimplementedFunc), /* 296 */ SyscallDesc("sendmsg", unimplementedFunc), /* 297 */ SyscallDesc("rcvmsg", unimplementedFunc), /* 298 */ SyscallDesc("semop", unimplementedFunc), /* 299 */ SyscallDesc("semget", unimplementedFunc), /* 300 */ SyscallDesc("semctl", unimplementedFunc), /* 301 */ SyscallDesc("msgsend", unimplementedFunc), /* 302 */ SyscallDesc("msgrcv", unimplementedFunc), /* 303 */ SyscallDesc("msgget", unimplementedFunc), /* 304 */ SyscallDesc("msgctl", unimplementedFunc), /* 305 */ SyscallDesc("shmat", unimplementedFunc), /* 306 */ SyscallDesc("shmdt", unimplementedFunc), /* 307 */ SyscallDesc("shmget", unimplementedFunc), /* 308 */ SyscallDesc("shmctl", unimplementedFunc), /* 309 */ SyscallDesc("add_key", unimplementedFunc), /* 310 */ SyscallDesc("request_key", unimplementedFunc), /* 311 */ SyscallDesc("keyctl", unimplementedFunc), /* 312 */ SyscallDesc("semtimedop", unimplementedFunc), /* 313 */ SyscallDesc("vserver", unimplementedFunc), /* 314 */ SyscallDesc("ioprio_set", unimplementedFunc), /* 315 */ SyscallDesc("ioprio_get", unimplementedFunc), /* 316 */ SyscallDesc("inotify_init", unimplementedFunc), /* 317 */ SyscallDesc("inotify_add_watch", unimplementedFunc), /* 318 */ SyscallDesc("inotify_rm_watch", unimplementedFunc), /* 319 */ SyscallDesc("mbind", unimplementedFunc), /* 320 */ SyscallDesc("get_mempolicy", unimplementedFunc), /* 321 */ SyscallDesc("set_mempolicy", unimplementedFunc), /* 322 */ SyscallDesc("openat", unimplementedFunc), /* 323 */ SyscallDesc("mkdirat", unimplementedFunc), /* 324 */ SyscallDesc("mknodat", unimplementedFunc), /* 325 */ SyscallDesc("fchownat", unimplementedFunc), /* 326 */ SyscallDesc("futimesat", unimplementedFunc), /* 327 */ SyscallDesc("fstatat64", unimplementedFunc), /* 328 */ SyscallDesc("unlinkat", unimplementedFunc), /* 329 */ SyscallDesc("renameat", unimplementedFunc), /* 330 */ SyscallDesc("linkat", unimplementedFunc), /* 331 */ SyscallDesc("symlinkat", unimplementedFunc), /* 332 */ SyscallDesc("readlinkat", unimplementedFunc), /* 333 */ SyscallDesc("fchmodat", unimplementedFunc), /* 334 */ SyscallDesc("faccessat", unimplementedFunc), /* 335 */ SyscallDesc("pselect6", unimplementedFunc), /* 336 */ SyscallDesc("ppoll", unimplementedFunc), /* 337 */ SyscallDesc("unshare", unimplementedFunc), /* 338 */ SyscallDesc("set_robust_list", unimplementedFunc), /* 339 */ SyscallDesc("get_robust_list", unimplementedFunc), /* 340 */ SyscallDesc("splice", unimplementedFunc), /* 341 */ SyscallDesc("arm_sync_file_range", unimplementedFunc), /* 342 */ SyscallDesc("tee", unimplementedFunc), /* 343 */ SyscallDesc("vmsplice", unimplementedFunc), /* 344 */ SyscallDesc("move_pages", unimplementedFunc), /* 345 */ SyscallDesc("getcpu", unimplementedFunc), /* 346 */ SyscallDesc("epoll_pwait", unimplementedFunc), }; /// Target set_tls() handler. static SyscallReturn setTLSFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { uint32_t tlsPtr = process->getSyscallArg(tc, 0); TypedBufferArg name(process->getSyscallArg(tc, 0)); tc->getMemPort()->writeBlob(ArmLinuxProcess::commPage + 0x0ff0, (uint8_t *)&tlsPtr, sizeof(tlsPtr)); return 0; } SyscallDesc ArmLinuxProcess::privSyscallDescs[] = { /* 1 */ SyscallDesc("breakpoint", unimplementedFunc), /* 2 */ SyscallDesc("cacheflush", unimplementedFunc), /* 3 */ SyscallDesc("usr26", unimplementedFunc), /* 4 */ SyscallDesc("usr32", unimplementedFunc), /* 5 */ SyscallDesc("set_tls", setTLSFunc) }; ArmLinuxProcess::ArmLinuxProcess(LiveProcessParams * params, ObjectFile *objFile) : ArmLiveProcess(params, objFile), Num_Syscall_Descs(sizeof(syscallDescs) / sizeof(SyscallDesc)), Num_Priv_Syscall_Descs(sizeof(privSyscallDescs) / sizeof(SyscallDesc)) { } const Addr ArmLinuxProcess::commPage = 0xffff0000; SyscallDesc* ArmLinuxProcess::getDesc(int callnum) { // Angel SWI syscalls are unsupported in this release if (callnum == 0x123456) { panic("Attempt to execute an ANGEL_SWI system call (newlib-related)"); } else if ((callnum & 0x00f00000) == 0x00900000 || (callnum & 0xf0000) == 0xf0000) { callnum &= 0x000fffff; if ((callnum & 0x0f0000) == 0xf0000) { callnum -= 0x0f0001; if (callnum < 0 || callnum > Num_Priv_Syscall_Descs) return NULL; return &privSyscallDescs[callnum]; } } // Linux syscalls have to strip off the 0x00900000 if (callnum < 0 || callnum > Num_Syscall_Descs) return NULL; return &syscallDescs[callnum]; } void ArmLinuxProcess::startup() { ArmLiveProcess::startup(); pTable->allocate(commPage, PageBytes); ThreadContext *tc = system->getThreadContext(contextIds[0]); uint8_t swiNeg1[] = { 0xff, 0xff, 0xff, 0xef //swi -1 }; // Fill this page with swi -1 so we'll no if we land in it somewhere. for (Addr addr = 0; addr < PageBytes; addr += sizeof(swiNeg1)) { tc->getMemPort()->writeBlob(commPage + addr, swiNeg1, sizeof(swiNeg1)); } // We don't have barriers, so just return. uint8_t memory_barrier[] = { 0x0e, 0xf0, 0xa0, 0xe1 //usr_ret lr }; tc->getMemPort()->writeBlob(commPage + 0x0fa0, memory_barrier, sizeof(memory_barrier)); // This -should- be atomic, but I don't think all the support that we'd // need is implemented. There should also be memory barriers around it. uint8_t cmpxchg[] = { 0x00, 0x30, 0x92, 0xe5, //ldr r3, [r2] 0x00, 0x30, 0x53, 0xe0, //subs r3, r3, r0 0x00, 0x10, 0x92, 0x05, //streq r1, [r2] 0x03, 0x00, 0xa0, 0xe1, //mov r0, r3 0x0e, 0xf0, 0xa0, 0xe1 //usr_ret lr }; tc->getMemPort()->writeBlob(commPage + 0x0fc0, cmpxchg, sizeof(cmpxchg)); uint8_t get_tls[] = { 0x08, 0x00, 0x9f, 0xe5, //ldr r0, [pc, #(16 - 8)] 0x0e, 0xf0, 0xa0, 0xe1 //usr_ret lr }; tc->getMemPort()->writeBlob(commPage + 0x0fe0, get_tls, sizeof(get_tls)); } ArmISA::IntReg ArmLinuxProcess::getSyscallArg(ThreadContext *tc, int i) { // Linux apparently allows more parameter than the ABI says it should. // This limit may need to be increased even further. assert(i < 6); return tc->readIntReg(ArgumentReg0 + i); } void ArmLinuxProcess::setSyscallArg(ThreadContext *tc, int i, ArmISA::IntReg val) { // Linux apparently allows more parameter than the ABI says it should. // This limit may need to be increased even further. assert(i < 6); tc->setIntReg(ArgumentReg0 + i, val); }