1/* 2 * Copyright (c) 2010 ARM Limited 3 * All rights reserved 4 * 5 * The license below extends only to copyright in the software and shall 6 * not be construed as granting a license to any other intellectual 7 * property including but not limited to intellectual property relating 8 * to a hardware implementation of the functionality of the software --- 26 unchanged lines hidden (view full) --- 35 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 36 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 37 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 38 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 39 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 40 * 41 * Authors: Korey Sewell 42 * Stephen Hines |
43 * Ali Saidi |
44 */ 45 46#include "arch/arm/linux/linux.hh" 47#include "arch/arm/linux/process.hh" 48#include "arch/arm/isa_traits.hh" 49 50#include "base/trace.hh" 51#include "cpu/thread_context.hh" --- 27 unchanged lines hidden (view full) --- 79SyscallDesc ArmLinuxProcess::syscallDescs[] = { 80 /* 0 */ SyscallDesc("syscall", unimplementedFunc), 81 /* 1 */ SyscallDesc("exit", exitFunc), 82 /* 2 */ SyscallDesc("fork", unimplementedFunc), 83 /* 3 */ SyscallDesc("read", readFunc), 84 /* 4 */ SyscallDesc("write", writeFunc), 85 /* 5 */ SyscallDesc("open", openFunc<ArmLinux>), 86 /* 6 */ SyscallDesc("close", closeFunc), |
87 /* 7 */ SyscallDesc("unused#7", unimplementedFunc), |
88 /* 8 */ SyscallDesc("creat", unimplementedFunc), 89 /* 9 */ SyscallDesc("link", unimplementedFunc), 90 /* 10 */ SyscallDesc("unlink", unlinkFunc), 91 /* 11 */ SyscallDesc("execve", unimplementedFunc), 92 /* 12 */ SyscallDesc("chdir", unimplementedFunc), |
93 /* 13 */ SyscallDesc("time", timeFunc<ArmLinux>), |
94 /* 14 */ SyscallDesc("mknod", unimplementedFunc), 95 /* 15 */ SyscallDesc("chmod", chmodFunc<ArmLinux>), 96 /* 16 */ SyscallDesc("lchown", chownFunc), |
97 /* 17 */ SyscallDesc("unused#17", unimplementedFunc), 98 /* 18 */ SyscallDesc("unused#18", unimplementedFunc), |
99 /* 19 */ SyscallDesc("lseek", lseekFunc), 100 /* 20 */ SyscallDesc("getpid", getpidFunc), 101 /* 21 */ SyscallDesc("mount", unimplementedFunc), 102 /* 22 */ SyscallDesc("umount", unimplementedFunc), 103 /* 23 */ SyscallDesc("setuid", setuidFunc), 104 /* 24 */ SyscallDesc("getuid", getuidFunc), 105 /* 25 */ SyscallDesc("stime", unimplementedFunc), 106 /* 26 */ SyscallDesc("ptrace", unimplementedFunc), 107 /* 27 */ SyscallDesc("alarm", unimplementedFunc), 108 /* 28 */ SyscallDesc("unused#28", unimplementedFunc), 109 /* 29 */ SyscallDesc("pause", unimplementedFunc), 110 /* 30 */ SyscallDesc("utime", unimplementedFunc), |
111 /* 31 */ SyscallDesc("unused#31", unimplementedFunc), 112 /* 32 */ SyscallDesc("unused#32", unimplementedFunc), |
113 /* 33 */ SyscallDesc("access", unimplementedFunc), 114 /* 34 */ SyscallDesc("nice", unimplementedFunc), |
115 /* 35 */ SyscallDesc("unused#35", unimplementedFunc), |
116 /* 36 */ SyscallDesc("sync", unimplementedFunc), 117 /* 37 */ SyscallDesc("kill", ignoreFunc), |
118 /* 38 */ SyscallDesc("rename", renameFunc), 119 /* 39 */ SyscallDesc("mkdir", mkdirFunc), |
120 /* 40 */ SyscallDesc("rmdir", unimplementedFunc), |
121 /* 41 */ SyscallDesc("dup", dupFunc), 122 /* 42 */ SyscallDesc("pipe", pipePseudoFunc), 123 /* 43 */ SyscallDesc("times", timesFunc<ArmLinux>), 124 /* 44 */ SyscallDesc("unused#44", unimplementedFunc), |
125 /* 45 */ SyscallDesc("brk", brkFunc), 126 /* 46 */ SyscallDesc("setgid", unimplementedFunc), 127 /* 47 */ SyscallDesc("getgid", getgidFunc), |
128 /* 48 */ SyscallDesc("unused#48", unimplementedFunc), |
129 /* 49 */ SyscallDesc("geteuid", geteuidFunc), 130 /* 50 */ SyscallDesc("getegid", getegidFunc), 131 /* 51 */ SyscallDesc("acct", unimplementedFunc), 132 /* 52 */ SyscallDesc("umount2", unimplementedFunc), |
133 /* 53 */ SyscallDesc("unused#53", unimplementedFunc), |
134 /* 54 */ SyscallDesc("ioctl", ioctlFunc<ArmLinux>), 135 /* 55 */ SyscallDesc("fcntl", fcntlFunc), |
136 /* 56 */ SyscallDesc("unused#56", unimplementedFunc), |
137 /* 57 */ SyscallDesc("setpgid", unimplementedFunc), |
138 /* 58 */ SyscallDesc("unused#58", unimplementedFunc), |
139 /* 59 */ SyscallDesc("unused#59", unimplementedFunc), 140 /* 60 */ SyscallDesc("umask", unimplementedFunc), 141 /* 61 */ SyscallDesc("chroot", unimplementedFunc), 142 /* 62 */ SyscallDesc("ustat", unimplementedFunc), 143 /* 63 */ SyscallDesc("dup2", unimplementedFunc), |
144 /* 64 */ SyscallDesc("getppid", getppidFunc), |
145 /* 65 */ SyscallDesc("getpgrp", unimplementedFunc), 146 /* 66 */ SyscallDesc("setsid", unimplementedFunc), 147 /* 67 */ SyscallDesc("sigaction",unimplementedFunc), |
148 /* 68 */ SyscallDesc("unused#68", unimplementedFunc), 149 /* 69 */ SyscallDesc("unused#69", unimplementedFunc), |
150 /* 70 */ SyscallDesc("setreuid", unimplementedFunc), 151 /* 71 */ SyscallDesc("setregid", unimplementedFunc), 152 /* 72 */ SyscallDesc("sigsuspend", unimplementedFunc), 153 /* 73 */ SyscallDesc("sigpending", unimplementedFunc), 154 /* 74 */ SyscallDesc("sethostname", ignoreFunc), 155 /* 75 */ SyscallDesc("setrlimit", unimplementedFunc), 156 /* 76 */ SyscallDesc("getrlimit", unimplementedFunc), 157 /* 77 */ SyscallDesc("getrusage", getrusageFunc<ArmLinux>), |
158 /* 78 */ SyscallDesc("gettimeofday", gettimeofdayFunc<ArmLinux>), |
159 /* 79 */ SyscallDesc("settimeofday", unimplementedFunc), 160 /* 80 */ SyscallDesc("getgroups", unimplementedFunc), 161 /* 81 */ SyscallDesc("setgroups", unimplementedFunc), 162 /* 82 */ SyscallDesc("reserved#82", unimplementedFunc), 163 /* 83 */ SyscallDesc("symlink", unimplementedFunc), 164 /* 84 */ SyscallDesc("unused#84", unimplementedFunc), |
165 /* 85 */ SyscallDesc("readlink", readlinkFunc), |
166 /* 86 */ SyscallDesc("uselib", unimplementedFunc), |
167 /* 87 */ SyscallDesc("swapon", unimplementedFunc), |
168 /* 88 */ SyscallDesc("reboot", unimplementedFunc), 169 /* 89 */ SyscallDesc("readdir", unimplementedFunc), 170 /* 90 */ SyscallDesc("mmap", mmapFunc<ArmLinux>), |
171 /* 91 */ SyscallDesc("munmap", munmapFunc), |
172 /* 92 */ SyscallDesc("truncate", truncateFunc), 173 /* 93 */ SyscallDesc("ftruncate", ftruncateFunc), 174 /* 94 */ SyscallDesc("fchmod", unimplementedFunc), 175 /* 95 */ SyscallDesc("fchown", unimplementedFunc), 176 /* 96 */ SyscallDesc("getpriority", unimplementedFunc), 177 /* 97 */ SyscallDesc("setpriority", unimplementedFunc), |
178 /* 98 */ SyscallDesc("unused#98", unimplementedFunc), |
179 /* 99 */ SyscallDesc("statfs", unimplementedFunc), 180 /* 100 */ SyscallDesc("fstatfs", unimplementedFunc), |
181 /* 101 */ SyscallDesc("unused#101", unimplementedFunc), |
182 /* 102 */ SyscallDesc("socketcall", unimplementedFunc), 183 /* 103 */ SyscallDesc("syslog", unimplementedFunc), 184 /* 104 */ SyscallDesc("setitimer", unimplementedFunc), 185 /* 105 */ SyscallDesc("getitimer", unimplementedFunc), 186 /* 106 */ SyscallDesc("stat", statFunc<ArmLinux>), 187 /* 107 */ SyscallDesc("lstat", unimplementedFunc), 188 /* 108 */ SyscallDesc("fstat", fstatFunc<ArmLinux>), 189 /* 109 */ SyscallDesc("unused#109", unimplementedFunc), |
190 /* 110 */ SyscallDesc("unused#101", unimplementedFunc), |
191 /* 111 */ SyscallDesc("vhangup", unimplementedFunc), |
192 /* 112 */ SyscallDesc("unused#112", unimplementedFunc), 193 /* 113 */ SyscallDesc("syscall", unimplementedFunc), |
194 /* 114 */ SyscallDesc("wait4", unimplementedFunc), 195 /* 115 */ SyscallDesc("swapoff", unimplementedFunc), 196 /* 116 */ SyscallDesc("sysinfo", sysinfoFunc<ArmLinux>), 197 /* 117 */ SyscallDesc("ipc", unimplementedFunc), 198 /* 118 */ SyscallDesc("fsync", unimplementedFunc), 199 /* 119 */ SyscallDesc("sigreturn", unimplementedFunc), 200 /* 120 */ SyscallDesc("clone", unimplementedFunc), 201 /* 121 */ SyscallDesc("setdomainname", unimplementedFunc), 202 /* 122 */ SyscallDesc("uname", unameFunc), |
203 /* 123 */ SyscallDesc("unused#123", unimplementedFunc), |
204 /* 124 */ SyscallDesc("adjtimex", unimplementedFunc), 205 /* 125 */ SyscallDesc("mprotect", ignoreFunc), 206 /* 126 */ SyscallDesc("sigprocmask", unimplementedFunc), |
207 /* 127 */ SyscallDesc("unused#127", unimplementedFunc), |
208 /* 128 */ SyscallDesc("init_module", unimplementedFunc), 209 /* 129 */ SyscallDesc("delete_module", unimplementedFunc), |
210 /* 130 */ SyscallDesc("unused#130", unimplementedFunc), |
211 /* 131 */ SyscallDesc("quotactl", unimplementedFunc), 212 /* 132 */ SyscallDesc("getpgid", unimplementedFunc), 213 /* 133 */ SyscallDesc("fchdir", unimplementedFunc), 214 /* 134 */ SyscallDesc("bdflush", unimplementedFunc), 215 /* 135 */ SyscallDesc("sysfs", unimplementedFunc), 216 /* 136 */ SyscallDesc("personality", unimplementedFunc), |
217 /* 137 */ SyscallDesc("reserved#138", unimplementedFunc), |
218 /* 138 */ SyscallDesc("setfsuid", unimplementedFunc), 219 /* 139 */ SyscallDesc("setfsgid", unimplementedFunc), |
220 /* 140 */ SyscallDesc("llseek", _llseekFunc), |
221 /* 141 */ SyscallDesc("getdents", unimplementedFunc), 222 /* 142 */ SyscallDesc("newselect", unimplementedFunc), 223 /* 143 */ SyscallDesc("flock", unimplementedFunc), 224 /* 144 */ SyscallDesc("msync", unimplementedFunc), 225 /* 145 */ SyscallDesc("readv", unimplementedFunc), 226 /* 146 */ SyscallDesc("writev", writevFunc<ArmLinux>), 227 /* 147 */ SyscallDesc("getsid", unimplementedFunc), 228 /* 148 */ SyscallDesc("fdatasync", unimplementedFunc), --- 6 unchanged lines hidden (view full) --- 235 /* 155 */ SyscallDesc("sched_getparam", unimplementedFunc), 236 /* 156 */ SyscallDesc("sched_setscheduler", unimplementedFunc), 237 /* 157 */ SyscallDesc("sched_getscheduler", unimplementedFunc), 238 /* 158 */ SyscallDesc("sched_yield", unimplementedFunc), 239 /* 159 */ SyscallDesc("sched_get_priority_max", unimplementedFunc), 240 /* 160 */ SyscallDesc("sched_get_priority_min", unimplementedFunc), 241 /* 161 */ SyscallDesc("sched_rr_get_interval", unimplementedFunc), 242 /* 162 */ SyscallDesc("nanosleep", unimplementedFunc), |
243 /* 163 */ SyscallDesc("mremap", mremapFunc<ArmLinux>), // ARM-specific |
244 /* 164 */ SyscallDesc("setresuid", unimplementedFunc), 245 /* 165 */ SyscallDesc("getresuid", unimplementedFunc), |
246 /* 166 */ SyscallDesc("unused#166", unimplementedFunc), 247 /* 167 */ SyscallDesc("unused#167", unimplementedFunc), |
248 /* 168 */ SyscallDesc("poll", unimplementedFunc), 249 /* 169 */ SyscallDesc("nfsservctl", unimplementedFunc), 250 /* 170 */ SyscallDesc("setresgid", unimplementedFunc), 251 /* 171 */ SyscallDesc("getresgid", unimplementedFunc), 252 /* 172 */ SyscallDesc("prctl", unimplementedFunc), 253 /* 173 */ SyscallDesc("rt_sigreturn", unimplementedFunc), 254 /* 174 */ SyscallDesc("rt_sigaction", unimplementedFunc), 255 /* 175 */ SyscallDesc("rt_sigprocmask", unimplementedFunc), 256 /* 176 */ SyscallDesc("rt_sigpending", unimplementedFunc), 257 /* 177 */ SyscallDesc("rt_sigtimedwait", unimplementedFunc), 258 /* 178 */ SyscallDesc("rt_sigqueueinfo", ignoreFunc), 259 /* 179 */ SyscallDesc("rt_sigsuspend", unimplementedFunc), 260 /* 180 */ SyscallDesc("pread64", unimplementedFunc), 261 /* 181 */ SyscallDesc("pwrite64", unimplementedFunc), 262 /* 182 */ SyscallDesc("chown", unimplementedFunc), |
263 /* 183 */ SyscallDesc("getcwd", getcwdFunc), |
264 /* 184 */ SyscallDesc("capget", unimplementedFunc), 265 /* 185 */ SyscallDesc("capset", unimplementedFunc), 266 /* 186 */ SyscallDesc("sigaltstack", unimplementedFunc), 267 /* 187 */ SyscallDesc("sendfile", unimplementedFunc), |
268 /* 188 */ SyscallDesc("unused#188", unimplementedFunc), 269 /* 189 */ SyscallDesc("unused#189", unimplementedFunc), |
270 /* 190 */ SyscallDesc("vfork", unimplementedFunc), 271 /* 191 */ SyscallDesc("getrlimit", unimplementedFunc), 272 /* 192 */ SyscallDesc("mmap2", mmapFunc<ArmLinux>), 273 /* 193 */ SyscallDesc("truncate64", unimplementedFunc), 274 /* 194 */ SyscallDesc("ftruncate64", unimplementedFunc), |
275 /* 195 */ SyscallDesc("stat64", stat64Func<ArmLinux>), |
276 /* 196 */ SyscallDesc("lstat64", lstat64Func<ArmLinux>), 277 /* 197 */ SyscallDesc("fstat64", fstat64Func<ArmLinux>), 278 /* 198 */ SyscallDesc("lchown", unimplementedFunc), 279 /* 199 */ SyscallDesc("getuid", getuidFunc), 280 /* 200 */ SyscallDesc("getgid", getgidFunc), 281 /* 201 */ SyscallDesc("geteuid", geteuidFunc), 282 /* 202 */ SyscallDesc("getegid", getegidFunc), 283 /* 203 */ SyscallDesc("setreuid", unimplementedFunc), --- 10 unchanged lines hidden (view full) --- 294 /* 214 */ SyscallDesc("setgid", unimplementedFunc), 295 /* 215 */ SyscallDesc("setfsuid", unimplementedFunc), 296 /* 216 */ SyscallDesc("setfsgid", unimplementedFunc), 297 /* 217 */ SyscallDesc("getdents64", unimplementedFunc), 298 /* 218 */ SyscallDesc("pivot_root", unimplementedFunc), 299 /* 219 */ SyscallDesc("mincore", unimplementedFunc), 300 /* 220 */ SyscallDesc("madvise", unimplementedFunc), 301 /* 221 */ SyscallDesc("fcntl64", fcntl64Func), |
302 /* 222 */ SyscallDesc("unused#222", unimplementedFunc), |
303 /* 223 */ SyscallDesc("unknown#223", unimplementedFunc), 304 /* 224 */ SyscallDesc("gettid", unimplementedFunc), 305 /* 225 */ SyscallDesc("readahead", unimplementedFunc), 306 /* 226 */ SyscallDesc("setxattr", unimplementedFunc), 307 /* 227 */ SyscallDesc("lsetxattr", unimplementedFunc), 308 /* 228 */ SyscallDesc("fsetxattr", unimplementedFunc), 309 /* 229 */ SyscallDesc("getxattr", unimplementedFunc), 310 /* 230 */ SyscallDesc("lgetxattr", unimplementedFunc), --- 9 unchanged lines hidden (view full) --- 320 /* 240 */ SyscallDesc("futex", unimplementedFunc), 321 /* 241 */ SyscallDesc("sched_setaffinity", unimplementedFunc), 322 /* 242 */ SyscallDesc("sched_getaffinity", unimplementedFunc), 323 /* 243 */ SyscallDesc("io_setup", unimplementedFunc), 324 /* 244 */ SyscallDesc("io_destory", unimplementedFunc), 325 /* 245 */ SyscallDesc("io_getevents", unimplementedFunc), 326 /* 246 */ SyscallDesc("io_submit", unimplementedFunc), 327 /* 247 */ SyscallDesc("io_cancel", unimplementedFunc), |
328 /* 248 */ SyscallDesc("exit_group", exitGroupFunc), |
329 /* 249 */ SyscallDesc("lookup_dcookie", unimplementedFunc), 330 /* 250 */ SyscallDesc("epoll_create", unimplementedFunc), 331 /* 251 */ SyscallDesc("epoll_ctl", unimplementedFunc), 332 /* 252 */ SyscallDesc("epoll_wait", unimplementedFunc), 333 /* 253 */ SyscallDesc("remap_file_pages", unimplementedFunc), |
334 /* 254 */ SyscallDesc("unused#254", unimplementedFunc), 335 /* 255 */ SyscallDesc("unused#255", unimplementedFunc), |
336 /* 256 */ SyscallDesc("set_tid_address", unimplementedFunc), 337 /* 257 */ SyscallDesc("timer_create", unimplementedFunc), 338 /* 258 */ SyscallDesc("timer_settime", unimplementedFunc), 339 /* 259 */ SyscallDesc("timer_gettime", unimplementedFunc), 340 /* 260 */ SyscallDesc("timer_getoverrun", unimplementedFunc), 341 /* 261 */ SyscallDesc("timer_delete", unimplementedFunc), 342 /* 262 */ SyscallDesc("clock_settime", unimplementedFunc), 343 /* 263 */ SyscallDesc("clock_gettime", unimplementedFunc), --- 41 unchanged lines hidden (view full) --- 385 /* 305 */ SyscallDesc("shmat", unimplementedFunc), 386 /* 306 */ SyscallDesc("shmdt", unimplementedFunc), 387 /* 307 */ SyscallDesc("shmget", unimplementedFunc), 388 /* 308 */ SyscallDesc("shmctl", unimplementedFunc), 389 /* 309 */ SyscallDesc("add_key", unimplementedFunc), 390 /* 310 */ SyscallDesc("request_key", unimplementedFunc), 391 /* 311 */ SyscallDesc("keyctl", unimplementedFunc), 392 /* 312 */ SyscallDesc("semtimedop", unimplementedFunc), |
393 /* 313 */ SyscallDesc("unused#313", unimplementedFunc), |
394 /* 314 */ SyscallDesc("ioprio_set", unimplementedFunc), 395 /* 315 */ SyscallDesc("ioprio_get", unimplementedFunc), 396 /* 316 */ SyscallDesc("inotify_init", unimplementedFunc), 397 /* 317 */ SyscallDesc("inotify_add_watch", unimplementedFunc), 398 /* 318 */ SyscallDesc("inotify_rm_watch", unimplementedFunc), 399 /* 319 */ SyscallDesc("mbind", unimplementedFunc), 400 /* 320 */ SyscallDesc("get_mempolicy", unimplementedFunc), 401 /* 321 */ SyscallDesc("set_mempolicy", unimplementedFunc), --- 17 unchanged lines hidden (view full) --- 419 /* 339 */ SyscallDesc("get_robust_list", unimplementedFunc), 420 /* 340 */ SyscallDesc("splice", unimplementedFunc), 421 /* 341 */ SyscallDesc("arm_sync_file_range", unimplementedFunc), 422 /* 342 */ SyscallDesc("tee", unimplementedFunc), 423 /* 343 */ SyscallDesc("vmsplice", unimplementedFunc), 424 /* 344 */ SyscallDesc("move_pages", unimplementedFunc), 425 /* 345 */ SyscallDesc("getcpu", unimplementedFunc), 426 /* 346 */ SyscallDesc("epoll_pwait", unimplementedFunc), |
427 /* 347 */ SyscallDesc("sys_kexec_load", unimplementedFunc), 428 /* 348 */ SyscallDesc("sys_utimensat", unimplementedFunc), 429 /* 349 */ SyscallDesc("sys_signalfd", unimplementedFunc), 430 /* 350 */ SyscallDesc("sys_timerfd_create", unimplementedFunc), 431 /* 351 */ SyscallDesc("sys_eventfd", unimplementedFunc), 432 /* 352 */ SyscallDesc("sys_fallocate", unimplementedFunc), 433 /* 353 */ SyscallDesc("sys_timerfd_settime", unimplementedFunc), 434 /* 354 */ SyscallDesc("sys_timerfd_gettime", unimplementedFunc), 435 /* 355 */ SyscallDesc("sys_signalfd4", unimplementedFunc), 436 /* 356 */ SyscallDesc("sys_eventfd2", unimplementedFunc), 437 /* 357 */ SyscallDesc("sys_epoll_create1", unimplementedFunc), 438 /* 358 */ SyscallDesc("sys_dup3", unimplementedFunc), 439 /* 359 */ SyscallDesc("sys_pipe2", unimplementedFunc), 440 /* 360 */ SyscallDesc("sys_inotify_init1", unimplementedFunc), 441 /* 361 */ SyscallDesc("sys_preadv", unimplementedFunc), 442 /* 362 */ SyscallDesc("sys_pwritev", unimplementedFunc), 443 /* 363 */ SyscallDesc("sys_rt_tgsigqueueinfo", unimplementedFunc), 444 /* 364 */ SyscallDesc("sys_perf_event_open", unimplementedFunc), 445 /* 365 */ SyscallDesc("sys_recvmmsg", unimplementedFunc), 446 |
447}; 448 449/// Target set_tls() handler. 450static SyscallReturn 451setTLSFunc(SyscallDesc *desc, int callnum, LiveProcess *process, 452 ThreadContext *tc) 453{ 454 int index = 0; --- 58 unchanged lines hidden (view full) --- 513 514 // Fill this page with swi -1 so we'll no if we land in it somewhere. 515 for (Addr addr = 0; addr < PageBytes; addr += sizeof(swiNeg1)) { 516 tc->getMemPort()->writeBlob(commPage + addr, 517 swiNeg1, sizeof(swiNeg1)); 518 } 519 520 // We don't have barriers, so just return. |
521 // @todo Add a barrrier in this code |
522 uint8_t memory_barrier[] = 523 { 524 0x0e, 0xf0, 0xa0, 0xe1 //usr_ret lr 525 }; 526 tc->getMemPort()->writeBlob(commPage + 0x0fa0, memory_barrier, 527 sizeof(memory_barrier)); 528 529 // This -should- be atomic, but I don't think all the support that we'd 530 // need is implemented. There should also be memory barriers around it. |
531 // @todo replace this with ldrex/strex and dmb |
532 uint8_t cmpxchg[] = 533 { 534 0x00, 0x30, 0x92, 0xe5, //ldr r3, [r2] 535 0x00, 0x30, 0x53, 0xe0, //subs r3, r3, r0 536 0x00, 0x10, 0x82, 0x05, //streq r1, [r2] 537 0x03, 0x00, 0xa0, 0xe1, //mov r0, r3 538 0x0e, 0xf0, 0xa0, 0xe1 //usr_ret lr 539 }; --- 27 unchanged lines hidden --- |