Alexey Samsonov | 7f9c5a2 | 2012-06-05 07:46:31 +0000 | [diff] [blame] | 1 | //===-- sanitizer_win.cc --------------------------------------------------===// |
Alexey Samsonov | c5d4651 | 2012-06-05 07:05:10 +0000 | [diff] [blame] | 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // This file is shared between AddressSanitizer and ThreadSanitizer |
| 11 | // run-time libraries and implements windows-specific functions from |
| 12 | // sanitizer_libc.h. |
| 13 | //===----------------------------------------------------------------------===// |
Evgeniy Stepanov | 24e1372 | 2013-03-19 14:33:38 +0000 | [diff] [blame] | 14 | |
| 15 | #include "sanitizer_platform.h" |
| 16 | #if SANITIZER_WINDOWS |
| 17 | |
Dmitry Vyukov | 33b2a94 | 2012-11-06 13:19:59 +0000 | [diff] [blame] | 18 | #define WIN32_LEAN_AND_MEAN |
| 19 | #define NOGDI |
Alexey Samsonov | e43542a | 2012-11-08 13:08:41 +0000 | [diff] [blame] | 20 | #include <stdlib.h> |
Alexey Samsonov | c5df5fb | 2012-12-19 08:51:39 +0000 | [diff] [blame] | 21 | #include <io.h> |
Alexey Samsonov | c5d4651 | 2012-06-05 07:05:10 +0000 | [diff] [blame] | 22 | #include <windows.h> |
| 23 | |
Alexey Samsonov | 9929ffd | 2012-06-06 09:43:32 +0000 | [diff] [blame] | 24 | #include "sanitizer_common.h" |
Alexey Samsonov | c5d4651 | 2012-06-05 07:05:10 +0000 | [diff] [blame] | 25 | #include "sanitizer_libc.h" |
Dmitry Vyukov | 53833ea | 2013-01-14 14:28:06 +0000 | [diff] [blame] | 26 | #include "sanitizer_mutex.h" |
Sergey Matveev | 736cf49 | 2013-05-08 12:45:55 +0000 | [diff] [blame] | 27 | #include "sanitizer_placement_new.h" |
| 28 | #include "sanitizer_stacktrace.h" |
Alexey Samsonov | c5d4651 | 2012-06-05 07:05:10 +0000 | [diff] [blame] | 29 | |
Alexey Samsonov | c5d4651 | 2012-06-05 07:05:10 +0000 | [diff] [blame] | 30 | namespace __sanitizer { |
| 31 | |
Peter Collingbourne | 9578a3e | 2013-05-08 14:43:49 +0000 | [diff] [blame] | 32 | #include "sanitizer_syscall_generic.inc" |
| 33 | |
Alexey Samsonov | e5931fd | 2012-06-07 07:13:46 +0000 | [diff] [blame] | 34 | // --------------------- sanitizer_common.h |
Kostya Serebryany | f67ec2b | 2012-11-23 15:38:49 +0000 | [diff] [blame] | 35 | uptr GetPageSize() { |
| 36 | return 1U << 14; // FIXME: is this configurable? |
| 37 | } |
| 38 | |
| 39 | uptr GetMmapGranularity() { |
| 40 | return 1U << 16; // FIXME: is this configurable? |
| 41 | } |
| 42 | |
Alexey Samsonov | 93b4caf | 2012-11-09 14:45:30 +0000 | [diff] [blame] | 43 | bool FileExists(const char *filename) { |
| 44 | UNIMPLEMENTED(); |
| 45 | } |
| 46 | |
Peter Collingbourne | 0b694fc | 2013-05-17 16:56:53 +0000 | [diff] [blame] | 47 | uptr internal_getpid() { |
Alexey Samsonov | 230c3be | 2012-06-06 09:26:25 +0000 | [diff] [blame] | 48 | return GetProcessId(GetCurrentProcess()); |
| 49 | } |
| 50 | |
Timur Iskhodzhanov | 2c96987 | 2013-03-25 22:04:29 +0000 | [diff] [blame] | 51 | // In contrast to POSIX, on Windows GetCurrentThreadId() |
| 52 | // returns a system-unique identifier. |
| 53 | uptr GetTid() { |
Alexey Samsonov | fa3daaf | 2012-06-15 06:37:34 +0000 | [diff] [blame] | 54 | return GetCurrentThreadId(); |
| 55 | } |
| 56 | |
Timur Iskhodzhanov | 2c96987 | 2013-03-25 22:04:29 +0000 | [diff] [blame] | 57 | uptr GetThreadSelf() { |
| 58 | return GetTid(); |
| 59 | } |
| 60 | |
Alexey Samsonov | ed996f7 | 2012-06-07 07:32:00 +0000 | [diff] [blame] | 61 | void GetThreadStackTopAndBottom(bool at_initialization, uptr *stack_top, |
Alexey Samsonov | e5931fd | 2012-06-07 07:13:46 +0000 | [diff] [blame] | 62 | uptr *stack_bottom) { |
| 63 | CHECK(stack_top); |
| 64 | CHECK(stack_bottom); |
| 65 | MEMORY_BASIC_INFORMATION mbi; |
Kostya Serebryany | 6985085 | 2012-06-20 15:19:17 +0000 | [diff] [blame] | 66 | CHECK_NE(VirtualQuery(&mbi /* on stack */, &mbi, sizeof(mbi)), 0); |
Alexey Samsonov | e5931fd | 2012-06-07 07:13:46 +0000 | [diff] [blame] | 67 | // FIXME: is it possible for the stack to not be a single allocation? |
| 68 | // Are these values what ASan expects to get (reserved, not committed; |
| 69 | // including stack guard page) ? |
| 70 | *stack_top = (uptr)mbi.BaseAddress + mbi.RegionSize; |
| 71 | *stack_bottom = (uptr)mbi.AllocationBase; |
| 72 | } |
| 73 | |
Alexey Samsonov | a25b346 | 2012-06-06 16:15:07 +0000 | [diff] [blame] | 74 | void *MmapOrDie(uptr size, const char *mem_type) { |
Alexey Samsonov | 230c3be | 2012-06-06 09:26:25 +0000 | [diff] [blame] | 75 | void *rv = VirtualAlloc(0, size, MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE); |
Alexey Samsonov | a25b346 | 2012-06-06 16:15:07 +0000 | [diff] [blame] | 76 | if (rv == 0) { |
| 77 | Report("ERROR: Failed to allocate 0x%zx (%zd) bytes of %s\n", |
| 78 | size, size, mem_type); |
| 79 | CHECK("unable to mmap" && 0); |
| 80 | } |
Alexey Samsonov | 230c3be | 2012-06-06 09:26:25 +0000 | [diff] [blame] | 81 | return rv; |
| 82 | } |
| 83 | |
| 84 | void UnmapOrDie(void *addr, uptr size) { |
Alexey Samsonov | 8c53e54 | 2012-06-06 15:47:40 +0000 | [diff] [blame] | 85 | if (VirtualFree(addr, size, MEM_DECOMMIT) == 0) { |
Alexey Samsonov | a25b346 | 2012-06-06 16:15:07 +0000 | [diff] [blame] | 86 | Report("ERROR: Failed to deallocate 0x%zx (%zd) bytes at address %p\n", |
| 87 | size, size, addr); |
| 88 | CHECK("unable to unmap" && 0); |
Alexey Samsonov | 8c53e54 | 2012-06-06 15:47:40 +0000 | [diff] [blame] | 89 | } |
Alexey Samsonov | 230c3be | 2012-06-06 09:26:25 +0000 | [diff] [blame] | 90 | } |
| 91 | |
Alexey Samsonov | f607fc1 | 2012-06-14 14:42:58 +0000 | [diff] [blame] | 92 | void *MmapFixedNoReserve(uptr fixed_addr, uptr size) { |
Kostya Serebryany | 9bfe78f | 2012-12-13 05:36:00 +0000 | [diff] [blame] | 93 | // FIXME: is this really "NoReserve"? On Win32 this does not matter much, |
| 94 | // but on Win64 it does. |
Dmitry Vyukov | 33b2a94 | 2012-11-06 13:19:59 +0000 | [diff] [blame] | 95 | void *p = VirtualAlloc((LPVOID)fixed_addr, size, |
| 96 | MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE); |
| 97 | if (p == 0) |
| 98 | Report("ERROR: Failed to allocate 0x%zx (%zd) bytes at %p (%d)\n", |
| 99 | size, size, fixed_addr, GetLastError()); |
| 100 | return p; |
Alexey Samsonov | f607fc1 | 2012-06-14 14:42:58 +0000 | [diff] [blame] | 101 | } |
| 102 | |
Kostya Serebryany | 9bfe78f | 2012-12-13 05:36:00 +0000 | [diff] [blame] | 103 | void *MmapFixedOrDie(uptr fixed_addr, uptr size) { |
Kostya Serebryany | 8c58aa7 | 2012-12-13 05:51:02 +0000 | [diff] [blame] | 104 | return MmapFixedNoReserve(fixed_addr, size); |
Kostya Serebryany | 9bfe78f | 2012-12-13 05:36:00 +0000 | [diff] [blame] | 105 | } |
| 106 | |
Alexey Samsonov | f607fc1 | 2012-06-14 14:42:58 +0000 | [diff] [blame] | 107 | void *Mprotect(uptr fixed_addr, uptr size) { |
| 108 | return VirtualAlloc((LPVOID)fixed_addr, size, |
| 109 | MEM_RESERVE | MEM_COMMIT, PAGE_NOACCESS); |
| 110 | } |
| 111 | |
Timur Iskhodzhanov | 2b10d39 | 2013-02-08 12:02:00 +0000 | [diff] [blame] | 112 | void FlushUnneededShadowMemory(uptr addr, uptr size) { |
| 113 | // This is almost useless on 32-bits. |
| 114 | // FIXME: add madvice-analog when we move to 64-bits. |
| 115 | } |
| 116 | |
Alexey Samsonov | dd3a911 | 2012-06-15 07:29:14 +0000 | [diff] [blame] | 117 | bool MemoryRangeIsAvailable(uptr range_start, uptr range_end) { |
| 118 | // FIXME: shall we do anything here on Windows? |
| 119 | return true; |
| 120 | } |
| 121 | |
Alexey Samsonov | a68633f | 2012-07-03 08:24:14 +0000 | [diff] [blame] | 122 | void *MapFileToMemory(const char *file_name, uptr *buff_size) { |
| 123 | UNIMPLEMENTED(); |
| 124 | } |
| 125 | |
Alexey Samsonov | a3ab192 | 2013-03-14 11:29:06 +0000 | [diff] [blame] | 126 | static const int kMaxEnvNameLength = 128; |
Dmitry Vyukov | c528867 | 2013-06-10 10:02:02 +0000 | [diff] [blame] | 127 | static const DWORD kMaxEnvValueLength = 32767; |
Alexey Samsonov | 1ef94b1 | 2013-03-14 11:10:23 +0000 | [diff] [blame] | 128 | |
| 129 | namespace { |
| 130 | |
| 131 | struct EnvVariable { |
| 132 | char name[kMaxEnvNameLength]; |
| 133 | char value[kMaxEnvValueLength]; |
| 134 | }; |
| 135 | |
| 136 | } // namespace |
| 137 | |
| 138 | static const int kEnvVariables = 5; |
| 139 | static EnvVariable env_vars[kEnvVariables]; |
| 140 | static int num_env_vars; |
| 141 | |
Alexey Samsonov | 3dbeabb | 2012-06-14 14:07:21 +0000 | [diff] [blame] | 142 | const char *GetEnv(const char *name) { |
Alexey Samsonov | 1ef94b1 | 2013-03-14 11:10:23 +0000 | [diff] [blame] | 143 | // Note: this implementation caches the values of the environment variables |
| 144 | // and limits their quantity. |
| 145 | for (int i = 0; i < num_env_vars; i++) { |
| 146 | if (0 == internal_strcmp(name, env_vars[i].name)) |
| 147 | return env_vars[i].value; |
| 148 | } |
| 149 | CHECK_LT(num_env_vars, kEnvVariables); |
| 150 | DWORD rv = GetEnvironmentVariableA(name, env_vars[num_env_vars].value, |
| 151 | kMaxEnvValueLength); |
| 152 | if (rv > 0 && rv < kMaxEnvValueLength) { |
| 153 | CHECK_LT(internal_strlen(name), kMaxEnvNameLength); |
| 154 | internal_strncpy(env_vars[num_env_vars].name, name, kMaxEnvNameLength); |
| 155 | num_env_vars++; |
| 156 | return env_vars[num_env_vars - 1].value; |
| 157 | } |
Alexey Samsonov | 3dbeabb | 2012-06-14 14:07:21 +0000 | [diff] [blame] | 158 | return 0; |
| 159 | } |
| 160 | |
Alexey Samsonov | 0969bcf | 2012-06-18 08:44:30 +0000 | [diff] [blame] | 161 | const char *GetPwd() { |
| 162 | UNIMPLEMENTED(); |
| 163 | } |
| 164 | |
Alexey Samsonov | 0fa691b | 2013-02-18 07:17:12 +0000 | [diff] [blame] | 165 | u32 GetUid() { |
| 166 | UNIMPLEMENTED(); |
| 167 | } |
| 168 | |
Alexey Samsonov | be7420c | 2012-06-15 06:08:19 +0000 | [diff] [blame] | 169 | void DumpProcessMap() { |
| 170 | UNIMPLEMENTED(); |
| 171 | } |
| 172 | |
| 173 | void DisableCoreDumper() { |
| 174 | UNIMPLEMENTED(); |
| 175 | } |
| 176 | |
Alexey Samsonov | d7e5bb4 | 2012-09-17 09:12:39 +0000 | [diff] [blame] | 177 | void ReExec() { |
| 178 | UNIMPLEMENTED(); |
| 179 | } |
| 180 | |
Alexander Potapenko | 2574257 | 2012-12-10 13:10:40 +0000 | [diff] [blame] | 181 | void PrepareForSandboxing() { |
| 182 | // Nothing here for now. |
| 183 | } |
| 184 | |
Alexey Samsonov | d7e5bb4 | 2012-09-17 09:12:39 +0000 | [diff] [blame] | 185 | bool StackSizeIsUnlimited() { |
| 186 | UNIMPLEMENTED(); |
Alexey Samsonov | d7e5bb4 | 2012-09-17 09:12:39 +0000 | [diff] [blame] | 187 | } |
| 188 | |
| 189 | void SetStackSizeLimitInBytes(uptr limit) { |
| 190 | UNIMPLEMENTED(); |
| 191 | } |
| 192 | |
Alexey Samsonov | fa3daaf | 2012-06-15 06:37:34 +0000 | [diff] [blame] | 193 | void SleepForSeconds(int seconds) { |
| 194 | Sleep(seconds * 1000); |
| 195 | } |
| 196 | |
Alexey Samsonov | 0969bcf | 2012-06-18 08:44:30 +0000 | [diff] [blame] | 197 | void SleepForMillis(int millis) { |
| 198 | Sleep(millis); |
| 199 | } |
| 200 | |
Dmitry Vyukov | c528867 | 2013-06-10 10:02:02 +0000 | [diff] [blame] | 201 | u64 NanoTime() { |
| 202 | return 0; |
| 203 | } |
| 204 | |
Alexey Samsonov | fa3daaf | 2012-06-15 06:37:34 +0000 | [diff] [blame] | 205 | void Abort() { |
| 206 | abort(); |
| 207 | _exit(-1); // abort is not NORETURN on Windows. |
| 208 | } |
| 209 | |
Dmitry Vyukov | 33b2a94 | 2012-11-06 13:19:59 +0000 | [diff] [blame] | 210 | #ifndef SANITIZER_GO |
Alexey Samsonov | fa3daaf | 2012-06-15 06:37:34 +0000 | [diff] [blame] | 211 | int Atexit(void (*function)(void)) { |
| 212 | return atexit(function); |
| 213 | } |
Dmitry Vyukov | 33b2a94 | 2012-11-06 13:19:59 +0000 | [diff] [blame] | 214 | #endif |
Alexey Samsonov | fa3daaf | 2012-06-15 06:37:34 +0000 | [diff] [blame] | 215 | |
Alexey Samsonov | e5931fd | 2012-06-07 07:13:46 +0000 | [diff] [blame] | 216 | // ------------------ sanitizer_libc.h |
Peter Collingbourne | 6712833 | 2013-05-08 18:15:01 +0000 | [diff] [blame] | 217 | uptr internal_mmap(void *addr, uptr length, int prot, int flags, |
| 218 | int fd, u64 offset) { |
Alexey Samsonov | 8c53e54 | 2012-06-06 15:47:40 +0000 | [diff] [blame] | 219 | UNIMPLEMENTED(); |
Alexey Samsonov | c5d4651 | 2012-06-05 07:05:10 +0000 | [diff] [blame] | 220 | } |
| 221 | |
Peter Collingbourne | 6712833 | 2013-05-08 18:15:01 +0000 | [diff] [blame] | 222 | uptr internal_munmap(void *addr, uptr length) { |
Alexey Samsonov | 8c53e54 | 2012-06-06 15:47:40 +0000 | [diff] [blame] | 223 | UNIMPLEMENTED(); |
Alexey Samsonov | 1f11d31 | 2012-06-05 09:49:25 +0000 | [diff] [blame] | 224 | } |
| 225 | |
Peter Collingbourne | 9578a3e | 2013-05-08 14:43:49 +0000 | [diff] [blame] | 226 | uptr internal_close(fd_t fd) { |
Alexey Samsonov | 8c53e54 | 2012-06-06 15:47:40 +0000 | [diff] [blame] | 227 | UNIMPLEMENTED(); |
Alexey Samsonov | a56aefd | 2012-06-05 08:32:53 +0000 | [diff] [blame] | 228 | } |
| 229 | |
Alexey Samsonov | 84d57b4 | 2012-11-02 15:18:34 +0000 | [diff] [blame] | 230 | int internal_isatty(fd_t fd) { |
Alexey Samsonov | 2bac661 | 2012-12-19 07:57:42 +0000 | [diff] [blame] | 231 | return _isatty(fd); |
Alexey Samsonov | 84d57b4 | 2012-11-02 15:18:34 +0000 | [diff] [blame] | 232 | } |
| 233 | |
Peter Collingbourne | 6712833 | 2013-05-08 18:15:01 +0000 | [diff] [blame] | 234 | uptr internal_open(const char *filename, int flags) { |
Alexey Samsonov | ee7cc44 | 2013-02-01 15:58:46 +0000 | [diff] [blame] | 235 | UNIMPLEMENTED(); |
| 236 | } |
| 237 | |
Peter Collingbourne | 6712833 | 2013-05-08 18:15:01 +0000 | [diff] [blame] | 238 | uptr internal_open(const char *filename, int flags, u32 mode) { |
Alexey Samsonov | ee7cc44 | 2013-02-01 15:58:46 +0000 | [diff] [blame] | 239 | UNIMPLEMENTED(); |
| 240 | } |
| 241 | |
Peter Collingbourne | 9578a3e | 2013-05-08 14:43:49 +0000 | [diff] [blame] | 242 | uptr OpenFile(const char *filename, bool write) { |
Alexey Samsonov | 8c53e54 | 2012-06-06 15:47:40 +0000 | [diff] [blame] | 243 | UNIMPLEMENTED(); |
Alexey Samsonov | c5d4651 | 2012-06-05 07:05:10 +0000 | [diff] [blame] | 244 | } |
| 245 | |
Alexey Samsonov | a56aefd | 2012-06-05 08:32:53 +0000 | [diff] [blame] | 246 | uptr internal_read(fd_t fd, void *buf, uptr count) { |
Alexey Samsonov | 8c53e54 | 2012-06-06 15:47:40 +0000 | [diff] [blame] | 247 | UNIMPLEMENTED(); |
Alexey Samsonov | a56aefd | 2012-06-05 08:32:53 +0000 | [diff] [blame] | 248 | } |
| 249 | |
| 250 | uptr internal_write(fd_t fd, const void *buf, uptr count) { |
Alexey Samsonov | f3457cb | 2012-11-02 09:38:47 +0000 | [diff] [blame] | 251 | if (fd != kStderrFd) |
Alexey Samsonov | 8c53e54 | 2012-06-06 15:47:40 +0000 | [diff] [blame] | 252 | UNIMPLEMENTED(); |
Alexey Samsonov | a56aefd | 2012-06-05 08:32:53 +0000 | [diff] [blame] | 253 | HANDLE err = GetStdHandle(STD_ERROR_HANDLE); |
| 254 | if (err == 0) |
| 255 | return 0; // FIXME: this might not work on some apps. |
| 256 | DWORD ret; |
| 257 | if (!WriteFile(err, buf, count, &ret, 0)) |
| 258 | return 0; |
| 259 | return ret; |
| 260 | } |
| 261 | |
Peter Collingbourne | 9578a3e | 2013-05-08 14:43:49 +0000 | [diff] [blame] | 262 | uptr internal_stat(const char *path, void *buf) { |
Alexey Samsonov | 4c9317a | 2013-02-04 10:16:50 +0000 | [diff] [blame] | 263 | UNIMPLEMENTED(); |
| 264 | } |
| 265 | |
Peter Collingbourne | 9578a3e | 2013-05-08 14:43:49 +0000 | [diff] [blame] | 266 | uptr internal_lstat(const char *path, void *buf) { |
Alexey Samsonov | 4c9317a | 2013-02-04 10:16:50 +0000 | [diff] [blame] | 267 | UNIMPLEMENTED(); |
| 268 | } |
| 269 | |
Peter Collingbourne | 9578a3e | 2013-05-08 14:43:49 +0000 | [diff] [blame] | 270 | uptr internal_fstat(fd_t fd, void *buf) { |
Alexey Samsonov | 4c9317a | 2013-02-04 10:16:50 +0000 | [diff] [blame] | 271 | UNIMPLEMENTED(); |
| 272 | } |
| 273 | |
Alexey Samsonov | 8e820fc | 2012-06-06 07:30:33 +0000 | [diff] [blame] | 274 | uptr internal_filesize(fd_t fd) { |
Alexey Samsonov | 8c53e54 | 2012-06-06 15:47:40 +0000 | [diff] [blame] | 275 | UNIMPLEMENTED(); |
Alexey Samsonov | 8e820fc | 2012-06-06 07:30:33 +0000 | [diff] [blame] | 276 | } |
| 277 | |
Peter Collingbourne | 9578a3e | 2013-05-08 14:43:49 +0000 | [diff] [blame] | 278 | uptr internal_dup2(int oldfd, int newfd) { |
Alexey Samsonov | 8c53e54 | 2012-06-06 15:47:40 +0000 | [diff] [blame] | 279 | UNIMPLEMENTED(); |
Alexey Samsonov | 8e820fc | 2012-06-06 07:30:33 +0000 | [diff] [blame] | 280 | } |
| 281 | |
Alexey Samsonov | d1b8f58 | 2012-09-05 14:48:24 +0000 | [diff] [blame] | 282 | uptr internal_readlink(const char *path, char *buf, uptr bufsize) { |
| 283 | UNIMPLEMENTED(); |
Alexey Samsonov | d1b8f58 | 2012-09-05 14:48:24 +0000 | [diff] [blame] | 284 | } |
| 285 | |
Peter Collingbourne | 9578a3e | 2013-05-08 14:43:49 +0000 | [diff] [blame] | 286 | uptr internal_sched_yield() { |
Dmitry Vyukov | 33b2a94 | 2012-11-06 13:19:59 +0000 | [diff] [blame] | 287 | Sleep(0); |
| 288 | return 0; |
Alexey Samsonov | 0969bcf | 2012-06-18 08:44:30 +0000 | [diff] [blame] | 289 | } |
| 290 | |
Alexey Samsonov | f882247 | 2013-02-20 13:54:32 +0000 | [diff] [blame] | 291 | void internal__exit(int exitcode) { |
| 292 | _exit(exitcode); |
| 293 | } |
| 294 | |
Dmitry Vyukov | f4f51f2 | 2013-01-14 07:51:39 +0000 | [diff] [blame] | 295 | // ---------------------- BlockingMutex ---------------- {{{1 |
Dmitry Vyukov | cf533b6 | 2013-02-04 10:42:38 +0000 | [diff] [blame] | 296 | const uptr LOCK_UNINITIALIZED = 0; |
| 297 | const uptr LOCK_READY = (uptr)-1; |
Dmitry Vyukov | f4f51f2 | 2013-01-14 07:51:39 +0000 | [diff] [blame] | 298 | |
| 299 | BlockingMutex::BlockingMutex(LinkerInitialized li) { |
| 300 | // FIXME: see comments in BlockingMutex::Lock() for the details. |
| 301 | CHECK(li == LINKER_INITIALIZED || owner_ == LOCK_UNINITIALIZED); |
| 302 | |
| 303 | CHECK(sizeof(CRITICAL_SECTION) <= sizeof(opaque_storage_)); |
| 304 | InitializeCriticalSection((LPCRITICAL_SECTION)opaque_storage_); |
| 305 | owner_ = LOCK_READY; |
| 306 | } |
| 307 | |
Alexey Samsonov | 93af594 | 2013-03-14 13:30:56 +0000 | [diff] [blame] | 308 | BlockingMutex::BlockingMutex() { |
| 309 | CHECK(sizeof(CRITICAL_SECTION) <= sizeof(opaque_storage_)); |
| 310 | InitializeCriticalSection((LPCRITICAL_SECTION)opaque_storage_); |
| 311 | owner_ = LOCK_READY; |
| 312 | } |
| 313 | |
Dmitry Vyukov | f4f51f2 | 2013-01-14 07:51:39 +0000 | [diff] [blame] | 314 | void BlockingMutex::Lock() { |
| 315 | if (owner_ == LOCK_UNINITIALIZED) { |
| 316 | // FIXME: hm, global BlockingMutex objects are not initialized?!? |
| 317 | // This might be a side effect of the clang+cl+link Frankenbuild... |
| 318 | new(this) BlockingMutex((LinkerInitialized)(LINKER_INITIALIZED + 1)); |
| 319 | |
| 320 | // FIXME: If it turns out the linker doesn't invoke our |
| 321 | // constructors, we should probably manually Lock/Unlock all the global |
| 322 | // locks while we're starting in one thread to avoid double-init races. |
| 323 | } |
| 324 | EnterCriticalSection((LPCRITICAL_SECTION)opaque_storage_); |
Dmitry Vyukov | 8ceeec4 | 2013-02-04 08:07:45 +0000 | [diff] [blame] | 325 | CHECK_EQ(owner_, LOCK_READY); |
Dmitry Vyukov | f4f51f2 | 2013-01-14 07:51:39 +0000 | [diff] [blame] | 326 | owner_ = GetThreadSelf(); |
| 327 | } |
| 328 | |
| 329 | void BlockingMutex::Unlock() { |
Dmitry Vyukov | 8ceeec4 | 2013-02-04 08:07:45 +0000 | [diff] [blame] | 330 | CHECK_EQ(owner_, GetThreadSelf()); |
Dmitry Vyukov | f4f51f2 | 2013-01-14 07:51:39 +0000 | [diff] [blame] | 331 | owner_ = LOCK_READY; |
| 332 | LeaveCriticalSection((LPCRITICAL_SECTION)opaque_storage_); |
| 333 | } |
| 334 | |
Alexey Samsonov | ce70097 | 2013-03-11 15:45:20 +0000 | [diff] [blame] | 335 | void BlockingMutex::CheckLocked() { |
| 336 | CHECK_EQ(owner_, GetThreadSelf()); |
| 337 | } |
| 338 | |
Evgeniy Stepanov | b114ed8 | 2013-03-13 08:19:53 +0000 | [diff] [blame] | 339 | uptr GetTlsSize() { |
| 340 | return 0; |
| 341 | } |
| 342 | |
| 343 | void InitTlsSize() { |
| 344 | } |
| 345 | |
Sergey Matveev | 24323de | 2013-05-07 14:41:43 +0000 | [diff] [blame] | 346 | void GetThreadStackAndTls(bool main, uptr *stk_addr, uptr *stk_size, |
| 347 | uptr *tls_addr, uptr *tls_size) { |
Dmitry Vyukov | 21b3b1c | 2013-06-10 10:30:54 +0000 | [diff] [blame] | 348 | #ifdef SANITIZER_GO |
| 349 | *stk_addr = 0; |
| 350 | *stk_size = 0; |
| 351 | *tls_addr = 0; |
| 352 | *tls_size = 0; |
| 353 | #else |
Sergey Matveev | 24323de | 2013-05-07 14:41:43 +0000 | [diff] [blame] | 354 | uptr stack_top, stack_bottom; |
| 355 | GetThreadStackTopAndBottom(main, &stack_top, &stack_bottom); |
| 356 | *stk_addr = stack_bottom; |
| 357 | *stk_size = stack_top - stack_bottom; |
| 358 | *tls_addr = 0; |
| 359 | *tls_size = 0; |
Dmitry Vyukov | 21b3b1c | 2013-06-10 10:30:54 +0000 | [diff] [blame] | 360 | #endif |
Sergey Matveev | 24323de | 2013-05-07 14:41:43 +0000 | [diff] [blame] | 361 | } |
| 362 | |
Sergey Matveev | 736cf49 | 2013-05-08 12:45:55 +0000 | [diff] [blame] | 363 | void GetStackTrace(StackTrace *stack, uptr max_s, uptr pc, uptr bp, |
| 364 | uptr stack_top, uptr stack_bottom, bool fast) { |
| 365 | (void)fast; |
| 366 | (void)stack_top; |
| 367 | (void)stack_bottom; |
| 368 | stack->max_size = max_s; |
| 369 | void *tmp[kStackTraceMax]; |
| 370 | |
| 371 | // FIXME: CaptureStackBackTrace might be too slow for us. |
| 372 | // FIXME: Compare with StackWalk64. |
| 373 | // FIXME: Look at LLVMUnhandledExceptionFilter in Signals.inc |
| 374 | uptr cs_ret = CaptureStackBackTrace(1, stack->max_size, tmp, 0); |
| 375 | uptr offset = 0; |
| 376 | // Skip the RTL frames by searching for the PC in the stacktrace. |
| 377 | // FIXME: this doesn't work well for the malloc/free stacks yet. |
| 378 | for (uptr i = 0; i < cs_ret; i++) { |
| 379 | if (pc != (uptr)tmp[i]) |
| 380 | continue; |
| 381 | offset = i; |
| 382 | break; |
| 383 | } |
| 384 | |
| 385 | stack->size = cs_ret - offset; |
| 386 | for (uptr i = 0; i < stack->size; i++) |
| 387 | stack->trace[i] = (uptr)tmp[i + offset]; |
| 388 | } |
| 389 | |
Alexey Samsonov | c5d4651 | 2012-06-05 07:05:10 +0000 | [diff] [blame] | 390 | } // namespace __sanitizer |
| 391 | |
| 392 | #endif // _WIN32 |