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 | c5d4651 | 2012-06-05 07:05:10 +0000 | [diff] [blame] | 20 | #include <windows.h> |
Stephen Hines | 6d18623 | 2014-11-26 17:56:19 -0800 | [diff] [blame] | 21 | #include <dbghelp.h> |
| 22 | #include <io.h> |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 23 | #include <psapi.h> |
Stephen Hines | 6d18623 | 2014-11-26 17:56:19 -0800 | [diff] [blame] | 24 | #include <stdlib.h> |
Alexey Samsonov | c5d4651 | 2012-06-05 07:05:10 +0000 | [diff] [blame] | 25 | |
Alexey Samsonov | 9929ffd | 2012-06-06 09:43:32 +0000 | [diff] [blame] | 26 | #include "sanitizer_common.h" |
Alexey Samsonov | c5d4651 | 2012-06-05 07:05:10 +0000 | [diff] [blame] | 27 | #include "sanitizer_libc.h" |
Dmitry Vyukov | 53833ea | 2013-01-14 14:28:06 +0000 | [diff] [blame] | 28 | #include "sanitizer_mutex.h" |
Sergey Matveev | 736cf49 | 2013-05-08 12:45:55 +0000 | [diff] [blame] | 29 | #include "sanitizer_placement_new.h" |
| 30 | #include "sanitizer_stacktrace.h" |
Alexey Samsonov | c5d4651 | 2012-06-05 07:05:10 +0000 | [diff] [blame] | 31 | |
Alexey Samsonov | c5d4651 | 2012-06-05 07:05:10 +0000 | [diff] [blame] | 32 | namespace __sanitizer { |
| 33 | |
Peter Collingbourne | 9578a3e | 2013-05-08 14:43:49 +0000 | [diff] [blame] | 34 | #include "sanitizer_syscall_generic.inc" |
| 35 | |
Alexey Samsonov | e5931fd | 2012-06-07 07:13:46 +0000 | [diff] [blame] | 36 | // --------------------- sanitizer_common.h |
Kostya Serebryany | f67ec2b | 2012-11-23 15:38:49 +0000 | [diff] [blame] | 37 | uptr GetPageSize() { |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 38 | // FIXME: there is an API for getting the system page size (GetSystemInfo or |
| 39 | // GetNativeSystemInfo), but if we use it here we get test failures elsewhere. |
| 40 | return 1U << 14; |
Kostya Serebryany | f67ec2b | 2012-11-23 15:38:49 +0000 | [diff] [blame] | 41 | } |
| 42 | |
| 43 | uptr GetMmapGranularity() { |
| 44 | return 1U << 16; // FIXME: is this configurable? |
| 45 | } |
| 46 | |
Timur Iskhodzhanov | bb7f2d8 | 2013-07-16 09:47:39 +0000 | [diff] [blame] | 47 | uptr GetMaxVirtualAddress() { |
| 48 | SYSTEM_INFO si; |
| 49 | GetSystemInfo(&si); |
| 50 | return (uptr)si.lpMaximumApplicationAddress; |
| 51 | } |
| 52 | |
Alexey Samsonov | 93b4caf | 2012-11-09 14:45:30 +0000 | [diff] [blame] | 53 | bool FileExists(const char *filename) { |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 54 | return ::GetFileAttributesA(filename) != INVALID_FILE_ATTRIBUTES; |
Alexey Samsonov | 93b4caf | 2012-11-09 14:45:30 +0000 | [diff] [blame] | 55 | } |
| 56 | |
Peter Collingbourne | 0b694fc | 2013-05-17 16:56:53 +0000 | [diff] [blame] | 57 | uptr internal_getpid() { |
Alexey Samsonov | 230c3be | 2012-06-06 09:26:25 +0000 | [diff] [blame] | 58 | return GetProcessId(GetCurrentProcess()); |
| 59 | } |
| 60 | |
Timur Iskhodzhanov | 2c96987 | 2013-03-25 22:04:29 +0000 | [diff] [blame] | 61 | // In contrast to POSIX, on Windows GetCurrentThreadId() |
| 62 | // returns a system-unique identifier. |
| 63 | uptr GetTid() { |
Alexey Samsonov | fa3daaf | 2012-06-15 06:37:34 +0000 | [diff] [blame] | 64 | return GetCurrentThreadId(); |
| 65 | } |
| 66 | |
Timur Iskhodzhanov | 2c96987 | 2013-03-25 22:04:29 +0000 | [diff] [blame] | 67 | uptr GetThreadSelf() { |
| 68 | return GetTid(); |
| 69 | } |
| 70 | |
Stephen Hines | 6d18623 | 2014-11-26 17:56:19 -0800 | [diff] [blame] | 71 | #if !SANITIZER_GO |
Alexey Samsonov | ed996f7 | 2012-06-07 07:32:00 +0000 | [diff] [blame] | 72 | void GetThreadStackTopAndBottom(bool at_initialization, uptr *stack_top, |
Alexey Samsonov | e5931fd | 2012-06-07 07:13:46 +0000 | [diff] [blame] | 73 | uptr *stack_bottom) { |
| 74 | CHECK(stack_top); |
| 75 | CHECK(stack_bottom); |
| 76 | MEMORY_BASIC_INFORMATION mbi; |
Kostya Serebryany | 6985085 | 2012-06-20 15:19:17 +0000 | [diff] [blame] | 77 | CHECK_NE(VirtualQuery(&mbi /* on stack */, &mbi, sizeof(mbi)), 0); |
Alexey Samsonov | e5931fd | 2012-06-07 07:13:46 +0000 | [diff] [blame] | 78 | // FIXME: is it possible for the stack to not be a single allocation? |
| 79 | // Are these values what ASan expects to get (reserved, not committed; |
| 80 | // including stack guard page) ? |
| 81 | *stack_top = (uptr)mbi.BaseAddress + mbi.RegionSize; |
| 82 | *stack_bottom = (uptr)mbi.AllocationBase; |
| 83 | } |
Stephen Hines | 6d18623 | 2014-11-26 17:56:19 -0800 | [diff] [blame] | 84 | #endif // #if !SANITIZER_GO |
Alexey Samsonov | e5931fd | 2012-06-07 07:13:46 +0000 | [diff] [blame] | 85 | |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 86 | void *MmapOrDie(uptr size, const char *mem_type, bool raw_report) { |
Alexey Samsonov | 230c3be | 2012-06-06 09:26:25 +0000 | [diff] [blame] | 87 | void *rv = VirtualAlloc(0, size, MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE); |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 88 | if (rv == 0) |
| 89 | ReportMmapFailureAndDie(size, mem_type, "allocate", |
| 90 | GetLastError(), raw_report); |
Alexey Samsonov | 230c3be | 2012-06-06 09:26:25 +0000 | [diff] [blame] | 91 | return rv; |
| 92 | } |
| 93 | |
| 94 | void UnmapOrDie(void *addr, uptr size) { |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 95 | if (!size || !addr) |
| 96 | return; |
| 97 | |
Alexey Samsonov | 8c53e54 | 2012-06-06 15:47:40 +0000 | [diff] [blame] | 98 | if (VirtualFree(addr, size, MEM_DECOMMIT) == 0) { |
Stephen Hines | 2d1fdb2 | 2014-05-28 23:58:16 -0700 | [diff] [blame] | 99 | Report("ERROR: %s failed to " |
| 100 | "deallocate 0x%zx (%zd) bytes at address %p (error code: %d)\n", |
| 101 | SanitizerToolName, size, size, addr, GetLastError()); |
Alexey Samsonov | a25b346 | 2012-06-06 16:15:07 +0000 | [diff] [blame] | 102 | CHECK("unable to unmap" && 0); |
Alexey Samsonov | 8c53e54 | 2012-06-06 15:47:40 +0000 | [diff] [blame] | 103 | } |
Alexey Samsonov | 230c3be | 2012-06-06 09:26:25 +0000 | [diff] [blame] | 104 | } |
| 105 | |
Pirama Arumuga Nainar | cdce50b | 2015-07-01 12:26:56 -0700 | [diff] [blame] | 106 | void *MmapFixedNoReserve(uptr fixed_addr, uptr size, const char *name) { |
Kostya Serebryany | 9bfe78f | 2012-12-13 05:36:00 +0000 | [diff] [blame] | 107 | // FIXME: is this really "NoReserve"? On Win32 this does not matter much, |
| 108 | // but on Win64 it does. |
Pirama Arumuga Nainar | cdce50b | 2015-07-01 12:26:56 -0700 | [diff] [blame] | 109 | (void)name; // unsupported |
Dmitry Vyukov | 33b2a94 | 2012-11-06 13:19:59 +0000 | [diff] [blame] | 110 | void *p = VirtualAlloc((LPVOID)fixed_addr, size, |
| 111 | MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE); |
| 112 | if (p == 0) |
Stephen Hines | 2d1fdb2 | 2014-05-28 23:58:16 -0700 | [diff] [blame] | 113 | Report("ERROR: %s failed to " |
| 114 | "allocate %p (%zd) bytes at %p (error code: %d)\n", |
| 115 | SanitizerToolName, size, size, fixed_addr, GetLastError()); |
Dmitry Vyukov | 33b2a94 | 2012-11-06 13:19:59 +0000 | [diff] [blame] | 116 | return p; |
Alexey Samsonov | f607fc1 | 2012-06-14 14:42:58 +0000 | [diff] [blame] | 117 | } |
| 118 | |
Kostya Serebryany | 9bfe78f | 2012-12-13 05:36:00 +0000 | [diff] [blame] | 119 | void *MmapFixedOrDie(uptr fixed_addr, uptr size) { |
Kostya Serebryany | 8c58aa7 | 2012-12-13 05:51:02 +0000 | [diff] [blame] | 120 | return MmapFixedNoReserve(fixed_addr, size); |
Kostya Serebryany | 9bfe78f | 2012-12-13 05:36:00 +0000 | [diff] [blame] | 121 | } |
| 122 | |
Stephen Hines | 2d1fdb2 | 2014-05-28 23:58:16 -0700 | [diff] [blame] | 123 | void *MmapNoReserveOrDie(uptr size, const char *mem_type) { |
| 124 | // FIXME: make this really NoReserve? |
| 125 | return MmapOrDie(size, mem_type); |
| 126 | } |
| 127 | |
Pirama Arumuga Nainar | cdce50b | 2015-07-01 12:26:56 -0700 | [diff] [blame] | 128 | void *MmapNoAccess(uptr fixed_addr, uptr size, const char *name) { |
| 129 | (void)name; // unsupported |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 130 | void *res = VirtualAlloc((LPVOID)fixed_addr, size, |
| 131 | MEM_RESERVE | MEM_COMMIT, PAGE_NOACCESS); |
| 132 | if (res == 0) |
| 133 | Report("WARNING: %s failed to " |
| 134 | "mprotect %p (%zd) bytes at %p (error code: %d)\n", |
| 135 | SanitizerToolName, size, size, fixed_addr, GetLastError()); |
| 136 | return res; |
Alexey Samsonov | f607fc1 | 2012-06-14 14:42:58 +0000 | [diff] [blame] | 137 | } |
| 138 | |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 139 | bool MprotectNoAccess(uptr addr, uptr size) { |
| 140 | DWORD old_protection; |
| 141 | return VirtualProtect((LPVOID)addr, size, PAGE_NOACCESS, &old_protection); |
| 142 | } |
| 143 | |
| 144 | |
Timur Iskhodzhanov | 2b10d39 | 2013-02-08 12:02:00 +0000 | [diff] [blame] | 145 | void FlushUnneededShadowMemory(uptr addr, uptr size) { |
| 146 | // This is almost useless on 32-bits. |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 147 | // FIXME: add madvise-analog when we move to 64-bits. |
| 148 | } |
| 149 | |
| 150 | void NoHugePagesInRegion(uptr addr, uptr size) { |
| 151 | // FIXME: probably similar to FlushUnneededShadowMemory. |
| 152 | } |
| 153 | |
| 154 | void DontDumpShadowMemory(uptr addr, uptr length) { |
| 155 | // This is almost useless on 32-bits. |
| 156 | // FIXME: add madvise-analog when we move to 64-bits. |
Timur Iskhodzhanov | 2b10d39 | 2013-02-08 12:02:00 +0000 | [diff] [blame] | 157 | } |
| 158 | |
Alexey Samsonov | dd3a911 | 2012-06-15 07:29:14 +0000 | [diff] [blame] | 159 | bool MemoryRangeIsAvailable(uptr range_start, uptr range_end) { |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 160 | MEMORY_BASIC_INFORMATION mbi; |
| 161 | CHECK(VirtualQuery((void *)range_start, &mbi, sizeof(mbi))); |
| 162 | return mbi.Protect == PAGE_NOACCESS && |
| 163 | (uptr)mbi.BaseAddress + mbi.RegionSize >= range_end; |
Alexey Samsonov | dd3a911 | 2012-06-15 07:29:14 +0000 | [diff] [blame] | 164 | } |
| 165 | |
Alexey Samsonov | a68633f | 2012-07-03 08:24:14 +0000 | [diff] [blame] | 166 | void *MapFileToMemory(const char *file_name, uptr *buff_size) { |
| 167 | UNIMPLEMENTED(); |
| 168 | } |
| 169 | |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 170 | void *MapWritableFileToMemory(void *addr, uptr size, fd_t fd, OFF_T offset) { |
Stephen Hines | 6a211c5 | 2014-07-21 00:49:56 -0700 | [diff] [blame] | 171 | UNIMPLEMENTED(); |
| 172 | } |
| 173 | |
Alexey Samsonov | a3ab192 | 2013-03-14 11:29:06 +0000 | [diff] [blame] | 174 | static const int kMaxEnvNameLength = 128; |
Dmitry Vyukov | c528867 | 2013-06-10 10:02:02 +0000 | [diff] [blame] | 175 | static const DWORD kMaxEnvValueLength = 32767; |
Alexey Samsonov | 1ef94b1 | 2013-03-14 11:10:23 +0000 | [diff] [blame] | 176 | |
| 177 | namespace { |
| 178 | |
| 179 | struct EnvVariable { |
| 180 | char name[kMaxEnvNameLength]; |
| 181 | char value[kMaxEnvValueLength]; |
| 182 | }; |
| 183 | |
| 184 | } // namespace |
| 185 | |
| 186 | static const int kEnvVariables = 5; |
| 187 | static EnvVariable env_vars[kEnvVariables]; |
| 188 | static int num_env_vars; |
| 189 | |
Alexey Samsonov | 3dbeabb | 2012-06-14 14:07:21 +0000 | [diff] [blame] | 190 | const char *GetEnv(const char *name) { |
Alexey Samsonov | 1ef94b1 | 2013-03-14 11:10:23 +0000 | [diff] [blame] | 191 | // Note: this implementation caches the values of the environment variables |
| 192 | // and limits their quantity. |
| 193 | for (int i = 0; i < num_env_vars; i++) { |
| 194 | if (0 == internal_strcmp(name, env_vars[i].name)) |
| 195 | return env_vars[i].value; |
| 196 | } |
| 197 | CHECK_LT(num_env_vars, kEnvVariables); |
| 198 | DWORD rv = GetEnvironmentVariableA(name, env_vars[num_env_vars].value, |
| 199 | kMaxEnvValueLength); |
| 200 | if (rv > 0 && rv < kMaxEnvValueLength) { |
| 201 | CHECK_LT(internal_strlen(name), kMaxEnvNameLength); |
| 202 | internal_strncpy(env_vars[num_env_vars].name, name, kMaxEnvNameLength); |
| 203 | num_env_vars++; |
| 204 | return env_vars[num_env_vars - 1].value; |
| 205 | } |
Alexey Samsonov | 3dbeabb | 2012-06-14 14:07:21 +0000 | [diff] [blame] | 206 | return 0; |
| 207 | } |
| 208 | |
Alexey Samsonov | 0969bcf | 2012-06-18 08:44:30 +0000 | [diff] [blame] | 209 | const char *GetPwd() { |
| 210 | UNIMPLEMENTED(); |
| 211 | } |
| 212 | |
Alexey Samsonov | 0fa691b | 2013-02-18 07:17:12 +0000 | [diff] [blame] | 213 | u32 GetUid() { |
| 214 | UNIMPLEMENTED(); |
| 215 | } |
| 216 | |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 217 | namespace { |
| 218 | struct ModuleInfo { |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 219 | const char *filepath; |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 220 | uptr base_address; |
| 221 | uptr end_address; |
| 222 | }; |
| 223 | |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 224 | #ifndef SANITIZER_GO |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 225 | int CompareModulesBase(const void *pl, const void *pr) { |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 226 | const ModuleInfo *l = (ModuleInfo *)pl, *r = (ModuleInfo *)pr; |
| 227 | if (l->base_address < r->base_address) |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 228 | return -1; |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 229 | return l->base_address > r->base_address; |
Alexey Samsonov | be7420c | 2012-06-15 06:08:19 +0000 | [diff] [blame] | 230 | } |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 231 | #endif |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 232 | } // namespace |
| 233 | |
| 234 | #ifndef SANITIZER_GO |
| 235 | void DumpProcessMap() { |
| 236 | Report("Dumping process modules:\n"); |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 237 | InternalScopedBuffer<LoadedModule> modules(kMaxNumberOfModules); |
| 238 | uptr num_modules = |
| 239 | GetListOfModules(modules.data(), kMaxNumberOfModules, nullptr); |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 240 | |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 241 | InternalScopedBuffer<ModuleInfo> module_infos(num_modules); |
| 242 | for (size_t i = 0; i < num_modules; ++i) { |
| 243 | module_infos[i].filepath = modules[i].full_name(); |
| 244 | module_infos[i].base_address = modules[i].base_address(); |
| 245 | module_infos[i].end_address = modules[i].ranges().next()->end; |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 246 | } |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 247 | qsort(module_infos.data(), num_modules, sizeof(ModuleInfo), |
| 248 | CompareModulesBase); |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 249 | |
| 250 | for (size_t i = 0; i < num_modules; ++i) { |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 251 | const ModuleInfo &mi = module_infos[i]; |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 252 | if (mi.end_address != 0) { |
| 253 | Printf("\t%p-%p %s\n", mi.base_address, mi.end_address, |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 254 | mi.filepath[0] ? mi.filepath : "[no name]"); |
| 255 | } else if (mi.filepath[0]) { |
| 256 | Printf("\t??\?-??? %s\n", mi.filepath); |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 257 | } else { |
| 258 | Printf("\t???\n"); |
| 259 | } |
| 260 | } |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 261 | } |
| 262 | #endif |
Alexey Samsonov | be7420c | 2012-06-15 06:08:19 +0000 | [diff] [blame] | 263 | |
Stephen Hines | 6d18623 | 2014-11-26 17:56:19 -0800 | [diff] [blame] | 264 | void DisableCoreDumperIfNecessary() { |
Stephen Hines | 2d1fdb2 | 2014-05-28 23:58:16 -0700 | [diff] [blame] | 265 | // Do nothing. |
Alexey Samsonov | be7420c | 2012-06-15 06:08:19 +0000 | [diff] [blame] | 266 | } |
| 267 | |
Alexey Samsonov | d7e5bb4 | 2012-09-17 09:12:39 +0000 | [diff] [blame] | 268 | void ReExec() { |
| 269 | UNIMPLEMENTED(); |
| 270 | } |
| 271 | |
Stephen Hines | 2d1fdb2 | 2014-05-28 23:58:16 -0700 | [diff] [blame] | 272 | void PrepareForSandboxing(__sanitizer_sandbox_arguments *args) { |
Pirama Arumuga Nainar | cdce50b | 2015-07-01 12:26:56 -0700 | [diff] [blame] | 273 | #if !SANITIZER_GO |
| 274 | CovPrepareForSandboxing(args); |
| 275 | #endif |
Alexander Potapenko | 2574257 | 2012-12-10 13:10:40 +0000 | [diff] [blame] | 276 | } |
| 277 | |
Alexey Samsonov | d7e5bb4 | 2012-09-17 09:12:39 +0000 | [diff] [blame] | 278 | bool StackSizeIsUnlimited() { |
| 279 | UNIMPLEMENTED(); |
Alexey Samsonov | d7e5bb4 | 2012-09-17 09:12:39 +0000 | [diff] [blame] | 280 | } |
| 281 | |
| 282 | void SetStackSizeLimitInBytes(uptr limit) { |
| 283 | UNIMPLEMENTED(); |
| 284 | } |
| 285 | |
Stephen Hines | 6d18623 | 2014-11-26 17:56:19 -0800 | [diff] [blame] | 286 | bool AddressSpaceIsUnlimited() { |
| 287 | UNIMPLEMENTED(); |
| 288 | } |
| 289 | |
| 290 | void SetAddressSpaceUnlimited() { |
| 291 | UNIMPLEMENTED(); |
| 292 | } |
| 293 | |
Pirama Arumuga Nainar | 7c91505 | 2015-04-08 08:58:29 -0700 | [diff] [blame] | 294 | bool IsPathSeparator(const char c) { |
| 295 | return c == '\\' || c == '/'; |
| 296 | } |
| 297 | |
| 298 | bool IsAbsolutePath(const char *path) { |
| 299 | UNIMPLEMENTED(); |
| 300 | } |
| 301 | |
Alexey Samsonov | fa3daaf | 2012-06-15 06:37:34 +0000 | [diff] [blame] | 302 | void SleepForSeconds(int seconds) { |
| 303 | Sleep(seconds * 1000); |
| 304 | } |
| 305 | |
Alexey Samsonov | 0969bcf | 2012-06-18 08:44:30 +0000 | [diff] [blame] | 306 | void SleepForMillis(int millis) { |
| 307 | Sleep(millis); |
| 308 | } |
| 309 | |
Dmitry Vyukov | c528867 | 2013-06-10 10:02:02 +0000 | [diff] [blame] | 310 | u64 NanoTime() { |
| 311 | return 0; |
| 312 | } |
| 313 | |
Alexey Samsonov | fa3daaf | 2012-06-15 06:37:34 +0000 | [diff] [blame] | 314 | void Abort() { |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 315 | if (::IsDebuggerPresent()) |
| 316 | __debugbreak(); |
| 317 | internal__exit(3); |
Alexey Samsonov | fa3daaf | 2012-06-15 06:37:34 +0000 | [diff] [blame] | 318 | } |
| 319 | |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 320 | // Read the file to extract the ImageBase field from the PE header. If ASLR is |
| 321 | // disabled and this virtual address is available, the loader will typically |
| 322 | // load the image at this address. Therefore, we call it the preferred base. Any |
| 323 | // addresses in the DWARF typically assume that the object has been loaded at |
| 324 | // this address. |
| 325 | static uptr GetPreferredBase(const char *modname) { |
| 326 | fd_t fd = OpenFile(modname, RdOnly, nullptr); |
| 327 | if (fd == kInvalidFd) |
| 328 | return 0; |
| 329 | FileCloser closer(fd); |
| 330 | |
| 331 | // Read just the DOS header. |
| 332 | IMAGE_DOS_HEADER dos_header; |
| 333 | uptr bytes_read; |
| 334 | if (!ReadFromFile(fd, &dos_header, sizeof(dos_header), &bytes_read) || |
| 335 | bytes_read != sizeof(dos_header)) |
| 336 | return 0; |
| 337 | |
| 338 | // The file should start with the right signature. |
| 339 | if (dos_header.e_magic != IMAGE_DOS_SIGNATURE) |
| 340 | return 0; |
| 341 | |
| 342 | // The layout at e_lfanew is: |
| 343 | // "PE\0\0" |
| 344 | // IMAGE_FILE_HEADER |
| 345 | // IMAGE_OPTIONAL_HEADER |
| 346 | // Seek to e_lfanew and read all that data. |
| 347 | char buf[4 + sizeof(IMAGE_FILE_HEADER) + sizeof(IMAGE_OPTIONAL_HEADER)]; |
| 348 | if (::SetFilePointer(fd, dos_header.e_lfanew, nullptr, FILE_BEGIN) == |
| 349 | INVALID_SET_FILE_POINTER) |
| 350 | return 0; |
| 351 | if (!ReadFromFile(fd, &buf[0], sizeof(buf), &bytes_read) || |
| 352 | bytes_read != sizeof(buf)) |
| 353 | return 0; |
| 354 | |
| 355 | // Check for "PE\0\0" before the PE header. |
| 356 | char *pe_sig = &buf[0]; |
| 357 | if (internal_memcmp(pe_sig, "PE\0\0", 4) != 0) |
| 358 | return 0; |
| 359 | |
| 360 | // Skip over IMAGE_FILE_HEADER. We could do more validation here if we wanted. |
| 361 | IMAGE_OPTIONAL_HEADER *pe_header = |
| 362 | (IMAGE_OPTIONAL_HEADER *)(pe_sig + 4 + sizeof(IMAGE_FILE_HEADER)); |
| 363 | |
| 364 | // Check for more magic in the PE header. |
| 365 | if (pe_header->Magic != IMAGE_NT_OPTIONAL_HDR_MAGIC) |
| 366 | return 0; |
| 367 | |
| 368 | // Finally, return the ImageBase. |
| 369 | return (uptr)pe_header->ImageBase; |
| 370 | } |
| 371 | |
| 372 | #ifndef SANITIZER_GO |
Alexey Samsonov | 7847d77 | 2013-09-10 14:36:16 +0000 | [diff] [blame] | 373 | uptr GetListOfModules(LoadedModule *modules, uptr max_modules, |
| 374 | string_predicate_t filter) { |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 375 | HANDLE cur_process = GetCurrentProcess(); |
Alexey Samsonov | 7847d77 | 2013-09-10 14:36:16 +0000 | [diff] [blame] | 376 | |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 377 | // Query the list of modules. Start by assuming there are no more than 256 |
| 378 | // modules and retry if that's not sufficient. |
| 379 | HMODULE *hmodules = 0; |
| 380 | uptr modules_buffer_size = sizeof(HMODULE) * 256; |
| 381 | DWORD bytes_required; |
| 382 | while (!hmodules) { |
| 383 | hmodules = (HMODULE *)MmapOrDie(modules_buffer_size, __FUNCTION__); |
| 384 | CHECK(EnumProcessModules(cur_process, hmodules, modules_buffer_size, |
| 385 | &bytes_required)); |
| 386 | if (bytes_required > modules_buffer_size) { |
| 387 | // Either there turned out to be more than 256 hmodules, or new hmodules |
| 388 | // could have loaded since the last try. Retry. |
| 389 | UnmapOrDie(hmodules, modules_buffer_size); |
| 390 | hmodules = 0; |
| 391 | modules_buffer_size = bytes_required; |
Stephen Hines | 2d1fdb2 | 2014-05-28 23:58:16 -0700 | [diff] [blame] | 392 | } |
| 393 | } |
| 394 | |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 395 | // |num_modules| is the number of modules actually present, |
| 396 | // |count| is the number of modules we return. |
| 397 | size_t nun_modules = bytes_required / sizeof(HMODULE), |
| 398 | count = 0; |
| 399 | for (size_t i = 0; i < nun_modules && count < max_modules; ++i) { |
| 400 | HMODULE handle = hmodules[i]; |
| 401 | MODULEINFO mi; |
| 402 | if (!GetModuleInformation(cur_process, handle, &mi, sizeof(mi))) |
| 403 | continue; |
Stephen Hines | 2d1fdb2 | 2014-05-28 23:58:16 -0700 | [diff] [blame] | 404 | |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 405 | // Get the UTF-16 path and convert to UTF-8. |
| 406 | wchar_t modname_utf16[kMaxPathLength]; |
| 407 | int modname_utf16_len = |
| 408 | GetModuleFileNameW(handle, modname_utf16, kMaxPathLength); |
| 409 | if (modname_utf16_len == 0) |
| 410 | modname_utf16[0] = '\0'; |
| 411 | char module_name[kMaxPathLength]; |
| 412 | int module_name_len = |
| 413 | ::WideCharToMultiByte(CP_UTF8, 0, modname_utf16, modname_utf16_len + 1, |
| 414 | &module_name[0], kMaxPathLength, NULL, NULL); |
| 415 | module_name[module_name_len] = '\0'; |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 416 | |
| 417 | if (filter && !filter(module_name)) |
| 418 | continue; |
| 419 | |
| 420 | uptr base_address = (uptr)mi.lpBaseOfDll; |
| 421 | uptr end_address = (uptr)mi.lpBaseOfDll + mi.SizeOfImage; |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 422 | |
| 423 | // Adjust the base address of the module so that we get a VA instead of an |
| 424 | // RVA when computing the module offset. This helps llvm-symbolizer find the |
| 425 | // right DWARF CU. In the common case that the image is loaded at it's |
| 426 | // preferred address, we will now print normal virtual addresses. |
| 427 | uptr preferred_base = GetPreferredBase(&module_name[0]); |
| 428 | uptr adjusted_base = base_address - preferred_base; |
| 429 | |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 430 | LoadedModule *cur_module = &modules[count]; |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 431 | cur_module->set(module_name, adjusted_base); |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 432 | // We add the whole module as one single address range. |
| 433 | cur_module->addAddressRange(base_address, end_address, /*executable*/ true); |
| 434 | count++; |
Stephen Hines | 2d1fdb2 | 2014-05-28 23:58:16 -0700 | [diff] [blame] | 435 | } |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 436 | UnmapOrDie(hmodules, modules_buffer_size); |
| 437 | |
| 438 | return count; |
| 439 | }; |
| 440 | |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 441 | // We can't use atexit() directly at __asan_init time as the CRT is not fully |
| 442 | // initialized at this point. Place the functions into a vector and use |
| 443 | // atexit() as soon as it is ready for use (i.e. after .CRT$XIC initializers). |
| 444 | InternalMmapVectorNoCtor<void (*)(void)> atexit_functions; |
| 445 | |
| 446 | int Atexit(void (*function)(void)) { |
| 447 | atexit_functions.push_back(function); |
Stephen Hines | 2d1fdb2 | 2014-05-28 23:58:16 -0700 | [diff] [blame] | 448 | return 0; |
Alexey Samsonov | a56aefd | 2012-06-05 08:32:53 +0000 | [diff] [blame] | 449 | } |
| 450 | |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 451 | static int RunAtexit() { |
| 452 | int ret = 0; |
| 453 | for (uptr i = 0; i < atexit_functions.size(); ++i) { |
| 454 | ret |= atexit(atexit_functions[i]); |
| 455 | } |
| 456 | return ret; |
| 457 | } |
| 458 | |
| 459 | #pragma section(".CRT$XID", long, read) // NOLINT |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 460 | __declspec(allocate(".CRT$XID")) int (*__run_atexit)() = RunAtexit; |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 461 | #endif |
| 462 | |
| 463 | // ------------------ sanitizer_libc.h |
| 464 | fd_t OpenFile(const char *filename, FileAccessMode mode, error_t *last_error) { |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 465 | fd_t res; |
| 466 | if (mode == RdOnly) { |
| 467 | res = CreateFile(filename, GENERIC_READ, |
| 468 | FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, |
| 469 | nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, nullptr); |
| 470 | } else if (mode == WrOnly) { |
| 471 | res = CreateFile(filename, GENERIC_WRITE, 0, nullptr, CREATE_ALWAYS, |
| 472 | FILE_ATTRIBUTE_NORMAL, nullptr); |
| 473 | } else { |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 474 | UNIMPLEMENTED(); |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 475 | } |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 476 | CHECK(res != kStdoutFd || kStdoutFd == kInvalidFd); |
| 477 | CHECK(res != kStderrFd || kStderrFd == kInvalidFd); |
Pirama Arumuga Nainar | cdce50b | 2015-07-01 12:26:56 -0700 | [diff] [blame] | 478 | if (res == kInvalidFd && last_error) |
| 479 | *last_error = GetLastError(); |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 480 | return res; |
| 481 | } |
| 482 | |
| 483 | void CloseFile(fd_t fd) { |
| 484 | CloseHandle(fd); |
| 485 | } |
| 486 | |
| 487 | bool ReadFromFile(fd_t fd, void *buff, uptr buff_size, uptr *bytes_read, |
| 488 | error_t *error_p) { |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 489 | CHECK(fd != kInvalidFd); |
| 490 | |
| 491 | // bytes_read can't be passed directly to ReadFile: |
| 492 | // uptr is unsigned long long on 64-bit Windows. |
| 493 | unsigned long num_read_long; |
| 494 | |
| 495 | bool success = ::ReadFile(fd, buff, buff_size, &num_read_long, nullptr); |
| 496 | if (!success && error_p) |
| 497 | *error_p = GetLastError(); |
| 498 | if (bytes_read) |
| 499 | *bytes_read = num_read_long; |
| 500 | return success; |
Alexey Samsonov | 4c9317a | 2013-02-04 10:16:50 +0000 | [diff] [blame] | 501 | } |
| 502 | |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 503 | bool SupportsColoredOutput(fd_t fd) { |
| 504 | // FIXME: support colored output. |
| 505 | return false; |
Alexey Samsonov | 4c9317a | 2013-02-04 10:16:50 +0000 | [diff] [blame] | 506 | } |
| 507 | |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 508 | bool WriteToFile(fd_t fd, const void *buff, uptr buff_size, uptr *bytes_written, |
| 509 | error_t *error_p) { |
| 510 | CHECK(fd != kInvalidFd); |
| 511 | |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 512 | // Handle null optional parameters. |
| 513 | error_t dummy_error; |
| 514 | error_p = error_p ? error_p : &dummy_error; |
| 515 | uptr dummy_bytes_written; |
| 516 | bytes_written = bytes_written ? bytes_written : &dummy_bytes_written; |
| 517 | |
| 518 | // Initialize output parameters in case we fail. |
| 519 | *error_p = 0; |
| 520 | *bytes_written = 0; |
| 521 | |
| 522 | // Map the conventional Unix fds 1 and 2 to Windows handles. They might be |
| 523 | // closed, in which case this will fail. |
| 524 | if (fd == kStdoutFd || fd == kStderrFd) { |
| 525 | fd = GetStdHandle(fd == kStdoutFd ? STD_OUTPUT_HANDLE : STD_ERROR_HANDLE); |
| 526 | if (fd == 0) { |
| 527 | *error_p = ERROR_INVALID_HANDLE; |
| 528 | return false; |
| 529 | } |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 530 | } |
| 531 | |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 532 | DWORD bytes_written_32; |
| 533 | if (!WriteFile(fd, buff, buff_size, &bytes_written_32, 0)) { |
| 534 | *error_p = GetLastError(); |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 535 | return false; |
| 536 | } else { |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 537 | *bytes_written = bytes_written_32; |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 538 | return true; |
| 539 | } |
Alexey Samsonov | 4c9317a | 2013-02-04 10:16:50 +0000 | [diff] [blame] | 540 | } |
| 541 | |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 542 | bool RenameFile(const char *oldpath, const char *newpath, error_t *error_p) { |
Alexey Samsonov | d1b8f58 | 2012-09-05 14:48:24 +0000 | [diff] [blame] | 543 | UNIMPLEMENTED(); |
Alexey Samsonov | d1b8f58 | 2012-09-05 14:48:24 +0000 | [diff] [blame] | 544 | } |
| 545 | |
Peter Collingbourne | 9578a3e | 2013-05-08 14:43:49 +0000 | [diff] [blame] | 546 | uptr internal_sched_yield() { |
Dmitry Vyukov | 33b2a94 | 2012-11-06 13:19:59 +0000 | [diff] [blame] | 547 | Sleep(0); |
| 548 | return 0; |
Alexey Samsonov | 0969bcf | 2012-06-18 08:44:30 +0000 | [diff] [blame] | 549 | } |
| 550 | |
Alexey Samsonov | f882247 | 2013-02-20 13:54:32 +0000 | [diff] [blame] | 551 | void internal__exit(int exitcode) { |
Stephen Hines | 2d1fdb2 | 2014-05-28 23:58:16 -0700 | [diff] [blame] | 552 | ExitProcess(exitcode); |
Alexey Samsonov | f882247 | 2013-02-20 13:54:32 +0000 | [diff] [blame] | 553 | } |
| 554 | |
Stephen Hines | 6a211c5 | 2014-07-21 00:49:56 -0700 | [diff] [blame] | 555 | uptr internal_ftruncate(fd_t fd, uptr size) { |
| 556 | UNIMPLEMENTED(); |
| 557 | } |
| 558 | |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 559 | uptr GetRSS() { |
| 560 | return 0; |
| 561 | } |
| 562 | |
| 563 | void *internal_start_thread(void (*func)(void *arg), void *arg) { return 0; } |
| 564 | void internal_join_thread(void *th) { } |
| 565 | |
Dmitry Vyukov | f4f51f2 | 2013-01-14 07:51:39 +0000 | [diff] [blame] | 566 | // ---------------------- BlockingMutex ---------------- {{{1 |
Dmitry Vyukov | cf533b6 | 2013-02-04 10:42:38 +0000 | [diff] [blame] | 567 | const uptr LOCK_UNINITIALIZED = 0; |
| 568 | const uptr LOCK_READY = (uptr)-1; |
Dmitry Vyukov | f4f51f2 | 2013-01-14 07:51:39 +0000 | [diff] [blame] | 569 | |
| 570 | BlockingMutex::BlockingMutex(LinkerInitialized li) { |
| 571 | // FIXME: see comments in BlockingMutex::Lock() for the details. |
| 572 | CHECK(li == LINKER_INITIALIZED || owner_ == LOCK_UNINITIALIZED); |
| 573 | |
| 574 | CHECK(sizeof(CRITICAL_SECTION) <= sizeof(opaque_storage_)); |
| 575 | InitializeCriticalSection((LPCRITICAL_SECTION)opaque_storage_); |
| 576 | owner_ = LOCK_READY; |
| 577 | } |
| 578 | |
Alexey Samsonov | 93af594 | 2013-03-14 13:30:56 +0000 | [diff] [blame] | 579 | BlockingMutex::BlockingMutex() { |
| 580 | CHECK(sizeof(CRITICAL_SECTION) <= sizeof(opaque_storage_)); |
| 581 | InitializeCriticalSection((LPCRITICAL_SECTION)opaque_storage_); |
| 582 | owner_ = LOCK_READY; |
| 583 | } |
| 584 | |
Dmitry Vyukov | f4f51f2 | 2013-01-14 07:51:39 +0000 | [diff] [blame] | 585 | void BlockingMutex::Lock() { |
| 586 | if (owner_ == LOCK_UNINITIALIZED) { |
| 587 | // FIXME: hm, global BlockingMutex objects are not initialized?!? |
| 588 | // This might be a side effect of the clang+cl+link Frankenbuild... |
| 589 | new(this) BlockingMutex((LinkerInitialized)(LINKER_INITIALIZED + 1)); |
| 590 | |
| 591 | // FIXME: If it turns out the linker doesn't invoke our |
| 592 | // constructors, we should probably manually Lock/Unlock all the global |
| 593 | // locks while we're starting in one thread to avoid double-init races. |
| 594 | } |
| 595 | EnterCriticalSection((LPCRITICAL_SECTION)opaque_storage_); |
Dmitry Vyukov | 8ceeec4 | 2013-02-04 08:07:45 +0000 | [diff] [blame] | 596 | CHECK_EQ(owner_, LOCK_READY); |
Dmitry Vyukov | f4f51f2 | 2013-01-14 07:51:39 +0000 | [diff] [blame] | 597 | owner_ = GetThreadSelf(); |
| 598 | } |
| 599 | |
| 600 | void BlockingMutex::Unlock() { |
Dmitry Vyukov | 8ceeec4 | 2013-02-04 08:07:45 +0000 | [diff] [blame] | 601 | CHECK_EQ(owner_, GetThreadSelf()); |
Dmitry Vyukov | f4f51f2 | 2013-01-14 07:51:39 +0000 | [diff] [blame] | 602 | owner_ = LOCK_READY; |
| 603 | LeaveCriticalSection((LPCRITICAL_SECTION)opaque_storage_); |
| 604 | } |
| 605 | |
Alexey Samsonov | ce70097 | 2013-03-11 15:45:20 +0000 | [diff] [blame] | 606 | void BlockingMutex::CheckLocked() { |
| 607 | CHECK_EQ(owner_, GetThreadSelf()); |
| 608 | } |
| 609 | |
Evgeniy Stepanov | b114ed8 | 2013-03-13 08:19:53 +0000 | [diff] [blame] | 610 | uptr GetTlsSize() { |
| 611 | return 0; |
| 612 | } |
| 613 | |
| 614 | void InitTlsSize() { |
| 615 | } |
| 616 | |
Sergey Matveev | 24323de | 2013-05-07 14:41:43 +0000 | [diff] [blame] | 617 | void GetThreadStackAndTls(bool main, uptr *stk_addr, uptr *stk_size, |
| 618 | uptr *tls_addr, uptr *tls_size) { |
Dmitry Vyukov | 21b3b1c | 2013-06-10 10:30:54 +0000 | [diff] [blame] | 619 | #ifdef SANITIZER_GO |
| 620 | *stk_addr = 0; |
| 621 | *stk_size = 0; |
| 622 | *tls_addr = 0; |
| 623 | *tls_size = 0; |
| 624 | #else |
Sergey Matveev | 24323de | 2013-05-07 14:41:43 +0000 | [diff] [blame] | 625 | uptr stack_top, stack_bottom; |
| 626 | GetThreadStackTopAndBottom(main, &stack_top, &stack_bottom); |
| 627 | *stk_addr = stack_bottom; |
| 628 | *stk_size = stack_top - stack_bottom; |
| 629 | *tls_addr = 0; |
| 630 | *tls_size = 0; |
Dmitry Vyukov | 21b3b1c | 2013-06-10 10:30:54 +0000 | [diff] [blame] | 631 | #endif |
Sergey Matveev | 24323de | 2013-05-07 14:41:43 +0000 | [diff] [blame] | 632 | } |
| 633 | |
Stephen Hines | 6d18623 | 2014-11-26 17:56:19 -0800 | [diff] [blame] | 634 | #if !SANITIZER_GO |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 635 | void BufferedStackTrace::SlowUnwindStack(uptr pc, u32 max_depth) { |
Stephen Hines | 2d1fdb2 | 2014-05-28 23:58:16 -0700 | [diff] [blame] | 636 | CHECK_GE(max_depth, 2); |
Sergey Matveev | 736cf49 | 2013-05-08 12:45:55 +0000 | [diff] [blame] | 637 | // FIXME: CaptureStackBackTrace might be too slow for us. |
| 638 | // FIXME: Compare with StackWalk64. |
| 639 | // FIXME: Look at LLVMUnhandledExceptionFilter in Signals.inc |
Timur Iskhodzhanov | 7177d2b | 2013-11-09 13:59:12 +0000 | [diff] [blame] | 640 | size = CaptureStackBackTrace(2, Min(max_depth, kStackTraceMax), |
| 641 | (void**)trace, 0); |
Stephen Hines | 2d1fdb2 | 2014-05-28 23:58:16 -0700 | [diff] [blame] | 642 | if (size == 0) |
| 643 | return; |
| 644 | |
Sergey Matveev | 736cf49 | 2013-05-08 12:45:55 +0000 | [diff] [blame] | 645 | // Skip the RTL frames by searching for the PC in the stacktrace. |
Timur Iskhodzhanov | 7177d2b | 2013-11-09 13:59:12 +0000 | [diff] [blame] | 646 | uptr pc_location = LocatePcInTrace(pc); |
| 647 | PopStackFrames(pc_location); |
Sergey Matveev | 736cf49 | 2013-05-08 12:45:55 +0000 | [diff] [blame] | 648 | } |
| 649 | |
Stephen Hines | 6d18623 | 2014-11-26 17:56:19 -0800 | [diff] [blame] | 650 | void BufferedStackTrace::SlowUnwindStackWithContext(uptr pc, void *context, |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 651 | u32 max_depth) { |
Stephen Hines | 6d18623 | 2014-11-26 17:56:19 -0800 | [diff] [blame] | 652 | CONTEXT ctx = *(CONTEXT *)context; |
| 653 | STACKFRAME64 stack_frame; |
| 654 | memset(&stack_frame, 0, sizeof(stack_frame)); |
| 655 | size = 0; |
| 656 | #if defined(_WIN64) |
| 657 | int machine_type = IMAGE_FILE_MACHINE_AMD64; |
| 658 | stack_frame.AddrPC.Offset = ctx.Rip; |
| 659 | stack_frame.AddrFrame.Offset = ctx.Rbp; |
| 660 | stack_frame.AddrStack.Offset = ctx.Rsp; |
| 661 | #else |
| 662 | int machine_type = IMAGE_FILE_MACHINE_I386; |
| 663 | stack_frame.AddrPC.Offset = ctx.Eip; |
| 664 | stack_frame.AddrFrame.Offset = ctx.Ebp; |
| 665 | stack_frame.AddrStack.Offset = ctx.Esp; |
| 666 | #endif |
| 667 | stack_frame.AddrPC.Mode = AddrModeFlat; |
| 668 | stack_frame.AddrFrame.Mode = AddrModeFlat; |
| 669 | stack_frame.AddrStack.Mode = AddrModeFlat; |
| 670 | while (StackWalk64(machine_type, GetCurrentProcess(), GetCurrentThread(), |
| 671 | &stack_frame, &ctx, NULL, &SymFunctionTableAccess64, |
| 672 | &SymGetModuleBase64, NULL) && |
| 673 | size < Min(max_depth, kStackTraceMax)) { |
| 674 | trace_buffer[size++] = (uptr)stack_frame.AddrPC.Offset; |
| 675 | } |
Stephen Hines | 2d1fdb2 | 2014-05-28 23:58:16 -0700 | [diff] [blame] | 676 | } |
Stephen Hines | 6d18623 | 2014-11-26 17:56:19 -0800 | [diff] [blame] | 677 | #endif // #if !SANITIZER_GO |
Stephen Hines | 2d1fdb2 | 2014-05-28 23:58:16 -0700 | [diff] [blame] | 678 | |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 679 | void ReportFile::Write(const char *buffer, uptr length) { |
| 680 | SpinMutexLock l(mu); |
| 681 | ReopenIfNecessary(); |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 682 | if (!WriteToFile(fd, buffer, length)) { |
Reid Kleckner | 923bac7 | 2013-09-05 03:19:57 +0000 | [diff] [blame] | 683 | // stderr may be closed, but we may be able to print to the debugger |
| 684 | // instead. This is the case when launching a program from Visual Studio, |
| 685 | // and the following routine should write to its console. |
| 686 | OutputDebugStringA(buffer); |
| 687 | } |
| 688 | } |
| 689 | |
Stephen Hines | 2d1fdb2 | 2014-05-28 23:58:16 -0700 | [diff] [blame] | 690 | void SetAlternateSignalStack() { |
| 691 | // FIXME: Decide what to do on Windows. |
| 692 | } |
| 693 | |
| 694 | void UnsetAlternateSignalStack() { |
| 695 | // FIXME: Decide what to do on Windows. |
| 696 | } |
| 697 | |
| 698 | void InstallDeadlySignalHandlers(SignalHandlerType handler) { |
| 699 | (void)handler; |
| 700 | // FIXME: Decide what to do on Windows. |
| 701 | } |
| 702 | |
| 703 | bool IsDeadlySignal(int signum) { |
| 704 | // FIXME: Decide what to do on Windows. |
| 705 | return false; |
| 706 | } |
| 707 | |
Stephen Hines | 6d18623 | 2014-11-26 17:56:19 -0800 | [diff] [blame] | 708 | bool IsAccessibleMemoryRange(uptr beg, uptr size) { |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 709 | SYSTEM_INFO si; |
| 710 | GetNativeSystemInfo(&si); |
| 711 | uptr page_size = si.dwPageSize; |
| 712 | uptr page_mask = ~(page_size - 1); |
| 713 | |
| 714 | for (uptr page = beg & page_mask, end = (beg + size - 1) & page_mask; |
| 715 | page <= end;) { |
| 716 | MEMORY_BASIC_INFORMATION info; |
| 717 | if (VirtualQuery((LPCVOID)page, &info, sizeof(info)) != sizeof(info)) |
| 718 | return false; |
| 719 | |
| 720 | if (info.Protect == 0 || info.Protect == PAGE_NOACCESS || |
| 721 | info.Protect == PAGE_EXECUTE) |
| 722 | return false; |
| 723 | |
| 724 | if (info.RegionSize == 0) |
| 725 | return false; |
| 726 | |
| 727 | page += info.RegionSize; |
| 728 | } |
| 729 | |
Stephen Hines | 6d18623 | 2014-11-26 17:56:19 -0800 | [diff] [blame] | 730 | return true; |
| 731 | } |
| 732 | |
Pirama Arumuga Nainar | 7c91505 | 2015-04-08 08:58:29 -0700 | [diff] [blame] | 733 | SignalContext SignalContext::Create(void *siginfo, void *context) { |
| 734 | EXCEPTION_RECORD *exception_record = (EXCEPTION_RECORD*)siginfo; |
| 735 | CONTEXT *context_record = (CONTEXT*)context; |
| 736 | |
| 737 | uptr pc = (uptr)exception_record->ExceptionAddress; |
| 738 | #ifdef _WIN64 |
| 739 | uptr bp = (uptr)context_record->Rbp; |
| 740 | uptr sp = (uptr)context_record->Rsp; |
| 741 | #else |
| 742 | uptr bp = (uptr)context_record->Ebp; |
| 743 | uptr sp = (uptr)context_record->Esp; |
| 744 | #endif |
| 745 | uptr access_addr = exception_record->ExceptionInformation[1]; |
| 746 | |
| 747 | return SignalContext(context, access_addr, pc, sp, bp); |
| 748 | } |
| 749 | |
Pirama Arumuga Nainar | cdce50b | 2015-07-01 12:26:56 -0700 | [diff] [blame] | 750 | uptr ReadBinaryName(/*out*/char *buf, uptr buf_len) { |
| 751 | // FIXME: Actually implement this function. |
| 752 | CHECK_GT(buf_len, 0); |
| 753 | buf[0] = 0; |
| 754 | return 0; |
| 755 | } |
| 756 | |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 757 | uptr ReadLongProcessName(/*out*/char *buf, uptr buf_len) { |
| 758 | return ReadBinaryName(buf, buf_len); |
| 759 | } |
| 760 | |
| 761 | void CheckVMASize() { |
| 762 | // Do nothing. |
| 763 | } |
| 764 | |
| 765 | void DisableReexec() { |
| 766 | // No need to re-exec on Windows. |
| 767 | } |
| 768 | |
| 769 | void MaybeReexec() { |
| 770 | // No need to re-exec on Windows. |
| 771 | } |
| 772 | |
Alexey Samsonov | c5d4651 | 2012-06-05 07:05:10 +0000 | [diff] [blame] | 773 | } // namespace __sanitizer |
| 774 | |
| 775 | #endif // _WIN32 |