1 //===-- tsan_platform.h -----------------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file is a part of ThreadSanitizer (TSan), a race detector.
12 // Platform-specific code.
13 //===----------------------------------------------------------------------===//
15 #ifndef TSAN_PLATFORM_H
16 #define TSAN_PLATFORM_H
18 #if !defined(__LP64__) && !defined(_WIN64)
19 # error "Only 64-bit is supported"
22 #include "tsan_defs.h"
23 #include "tsan_trace.h"
29 #if defined(__x86_64__)
31 C/C++ on linux/x86_64 and freebsd/x86_64
32 0000 0000 1000 - 0080 0000 0000: main binary and/or MAP_32BIT mappings (512GB)
33 0040 0000 0000 - 0100 0000 0000: -
34 0100 0000 0000 - 2000 0000 0000: shadow
35 2000 0000 0000 - 3000 0000 0000: -
36 3000 0000 0000 - 4000 0000 0000: metainfo (memory blocks and sync objects)
37 4000 0000 0000 - 5500 0000 0000: -
38 5500 0000 0000 - 5680 0000 0000: pie binaries without ASLR or on 4.1+ kernels
39 5680 0000 0000 - 6000 0000 0000: -
40 6000 0000 0000 - 6200 0000 0000: traces
41 6200 0000 0000 - 7d00 0000 0000: -
42 7b00 0000 0000 - 7c00 0000 0000: heap
43 7c00 0000 0000 - 7e80 0000 0000: -
44 7e80 0000 0000 - 8000 0000 0000: modules and main thread stack
46 C/C++ on netbsd/amd64 can reuse the same mapping:
47 * The address space starts from 0x1000 (option with 0x0) and ends with
49 * LoAppMem-kHeapMemEnd can be reused as it is.
51 * No MidAppMem region.
52 * No additional HeapMem region.
53 * HiAppMem contains the stack, loader, shared libraries and heap.
54 * Stack on NetBSD/amd64 has prereserved 128MB.
55 * Heap grows downwards (top-down).
56 * ASLR must be disabled per-process or globally.
60 static const uptr kMetaShadowBeg = 0x300000000000ull;
61 static const uptr kMetaShadowEnd = 0x340000000000ull;
62 static const uptr kTraceMemBeg = 0x600000000000ull;
63 static const uptr kTraceMemEnd = 0x620000000000ull;
64 static const uptr kShadowBeg = 0x010000000000ull;
65 static const uptr kShadowEnd = 0x200000000000ull;
66 static const uptr kHeapMemBeg = 0x7b0000000000ull;
67 static const uptr kHeapMemEnd = 0x7c0000000000ull;
68 static const uptr kLoAppMemBeg = 0x000000001000ull;
69 static const uptr kLoAppMemEnd = 0x008000000000ull;
70 static const uptr kMidAppMemBeg = 0x550000000000ull;
71 static const uptr kMidAppMemEnd = 0x568000000000ull;
72 static const uptr kHiAppMemBeg = 0x7e8000000000ull;
73 static const uptr kHiAppMemEnd = 0x800000000000ull;
74 static const uptr kAppMemMsk = 0x780000000000ull;
75 static const uptr kAppMemXor = 0x040000000000ull;
76 static const uptr kVdsoBeg = 0xf000000000000000ull;
79 #define TSAN_MID_APP_RANGE 1
80 #elif defined(__mips64)
82 C/C++ on linux/mips64 (40-bit VMA)
83 0000 0000 00 - 0100 0000 00: - (4 GB)
84 0100 0000 00 - 0200 0000 00: main binary (4 GB)
85 0200 0000 00 - 2000 0000 00: - (120 GB)
86 2000 0000 00 - 4000 0000 00: shadow (128 GB)
87 4000 0000 00 - 5000 0000 00: metainfo (memory blocks and sync objects) (64 GB)
88 5000 0000 00 - aa00 0000 00: - (360 GB)
89 aa00 0000 00 - ab00 0000 00: main binary (PIE) (4 GB)
90 ab00 0000 00 - b000 0000 00: - (20 GB)
91 b000 0000 00 - b200 0000 00: traces (8 GB)
92 b200 0000 00 - fe00 0000 00: - (304 GB)
93 fe00 0000 00 - ff00 0000 00: heap (4 GB)
94 ff00 0000 00 - ff80 0000 00: - (2 GB)
95 ff80 0000 00 - ffff ffff ff: modules and main thread stack (<2 GB)
98 static const uptr kMetaShadowBeg = 0x4000000000ull;
99 static const uptr kMetaShadowEnd = 0x5000000000ull;
100 static const uptr kTraceMemBeg = 0xb000000000ull;
101 static const uptr kTraceMemEnd = 0xb200000000ull;
102 static const uptr kShadowBeg = 0x2000000000ull;
103 static const uptr kShadowEnd = 0x4000000000ull;
104 static const uptr kHeapMemBeg = 0xfe00000000ull;
105 static const uptr kHeapMemEnd = 0xff00000000ull;
106 static const uptr kLoAppMemBeg = 0x0100000000ull;
107 static const uptr kLoAppMemEnd = 0x0200000000ull;
108 static const uptr kMidAppMemBeg = 0xaa00000000ull;
109 static const uptr kMidAppMemEnd = 0xab00000000ull;
110 static const uptr kHiAppMemBeg = 0xff80000000ull;
111 static const uptr kHiAppMemEnd = 0xffffffffffull;
112 static const uptr kAppMemMsk = 0xf800000000ull;
113 static const uptr kAppMemXor = 0x0800000000ull;
114 static const uptr kVdsoBeg = 0xfffff00000ull;
117 #define TSAN_MID_APP_RANGE 1
118 #elif defined(__aarch64__) && defined(__APPLE__)
120 C/C++ on Darwin/iOS/ARM64 (36-bit VMA, 64 GB VM)
121 0000 0000 00 - 0100 0000 00: - (4 GB)
122 0100 0000 00 - 0200 0000 00: main binary, modules, thread stacks (4 GB)
123 0200 0000 00 - 0300 0000 00: heap (4 GB)
124 0300 0000 00 - 0400 0000 00: - (4 GB)
125 0400 0000 00 - 0c00 0000 00: shadow memory (32 GB)
126 0c00 0000 00 - 0d00 0000 00: - (4 GB)
127 0d00 0000 00 - 0e00 0000 00: metainfo (4 GB)
128 0e00 0000 00 - 0f00 0000 00: - (4 GB)
129 0f00 0000 00 - 0fc0 0000 00: traces (3 GB)
130 0fc0 0000 00 - 1000 0000 00: -
133 static const uptr kLoAppMemBeg = 0x0100000000ull;
134 static const uptr kLoAppMemEnd = 0x0200000000ull;
135 static const uptr kHeapMemBeg = 0x0200000000ull;
136 static const uptr kHeapMemEnd = 0x0300000000ull;
137 static const uptr kShadowBeg = 0x0400000000ull;
138 static const uptr kShadowEnd = 0x0c00000000ull;
139 static const uptr kMetaShadowBeg = 0x0d00000000ull;
140 static const uptr kMetaShadowEnd = 0x0e00000000ull;
141 static const uptr kTraceMemBeg = 0x0f00000000ull;
142 static const uptr kTraceMemEnd = 0x0fc0000000ull;
143 static const uptr kHiAppMemBeg = 0x0fc0000000ull;
144 static const uptr kHiAppMemEnd = 0x0fc0000000ull;
145 static const uptr kAppMemMsk = 0x0ull;
146 static const uptr kAppMemXor = 0x0ull;
147 static const uptr kVdsoBeg = 0x7000000000000000ull;
150 #elif defined(__aarch64__)
151 // AArch64 supports multiple VMA which leads to multiple address transformation
152 // functions. To support these multiple VMAS transformations and mappings TSAN
153 // runtime for AArch64 uses an external memory read (vmaSize) to select which
154 // mapping to use. Although slower, it make a same instrumented binary run on
158 C/C++ on linux/aarch64 (39-bit VMA)
159 0000 0010 00 - 0100 0000 00: main binary
160 0100 0000 00 - 0800 0000 00: -
161 0800 0000 00 - 2000 0000 00: shadow memory
162 2000 0000 00 - 3100 0000 00: -
163 3100 0000 00 - 3400 0000 00: metainfo
164 3400 0000 00 - 5500 0000 00: -
165 5500 0000 00 - 5600 0000 00: main binary (PIE)
166 5600 0000 00 - 6000 0000 00: -
167 6000 0000 00 - 6200 0000 00: traces
168 6200 0000 00 - 7d00 0000 00: -
169 7c00 0000 00 - 7d00 0000 00: heap
170 7d00 0000 00 - 7fff ffff ff: modules and main thread stack
173 static const uptr kLoAppMemBeg = 0x0000001000ull;
174 static const uptr kLoAppMemEnd = 0x0100000000ull;
175 static const uptr kShadowBeg = 0x0800000000ull;
176 static const uptr kShadowEnd = 0x2000000000ull;
177 static const uptr kMetaShadowBeg = 0x3100000000ull;
178 static const uptr kMetaShadowEnd = 0x3400000000ull;
179 static const uptr kMidAppMemBeg = 0x5500000000ull;
180 static const uptr kMidAppMemEnd = 0x5600000000ull;
181 static const uptr kTraceMemBeg = 0x6000000000ull;
182 static const uptr kTraceMemEnd = 0x6200000000ull;
183 static const uptr kHeapMemBeg = 0x7c00000000ull;
184 static const uptr kHeapMemEnd = 0x7d00000000ull;
185 static const uptr kHiAppMemBeg = 0x7e00000000ull;
186 static const uptr kHiAppMemEnd = 0x7fffffffffull;
187 static const uptr kAppMemMsk = 0x7800000000ull;
188 static const uptr kAppMemXor = 0x0200000000ull;
189 static const uptr kVdsoBeg = 0x7f00000000ull;
193 C/C++ on linux/aarch64 (42-bit VMA)
194 00000 0010 00 - 01000 0000 00: main binary
195 01000 0000 00 - 10000 0000 00: -
196 10000 0000 00 - 20000 0000 00: shadow memory
197 20000 0000 00 - 26000 0000 00: -
198 26000 0000 00 - 28000 0000 00: metainfo
199 28000 0000 00 - 2aa00 0000 00: -
200 2aa00 0000 00 - 2ab00 0000 00: main binary (PIE)
201 2ab00 0000 00 - 36200 0000 00: -
202 36200 0000 00 - 36240 0000 00: traces
203 36240 0000 00 - 3e000 0000 00: -
204 3e000 0000 00 - 3f000 0000 00: heap
205 3f000 0000 00 - 3ffff ffff ff: modules and main thread stack
208 static const uptr kLoAppMemBeg = 0x00000001000ull;
209 static const uptr kLoAppMemEnd = 0x01000000000ull;
210 static const uptr kShadowBeg = 0x10000000000ull;
211 static const uptr kShadowEnd = 0x20000000000ull;
212 static const uptr kMetaShadowBeg = 0x26000000000ull;
213 static const uptr kMetaShadowEnd = 0x28000000000ull;
214 static const uptr kMidAppMemBeg = 0x2aa00000000ull;
215 static const uptr kMidAppMemEnd = 0x2ab00000000ull;
216 static const uptr kTraceMemBeg = 0x36200000000ull;
217 static const uptr kTraceMemEnd = 0x36400000000ull;
218 static const uptr kHeapMemBeg = 0x3e000000000ull;
219 static const uptr kHeapMemEnd = 0x3f000000000ull;
220 static const uptr kHiAppMemBeg = 0x3f000000000ull;
221 static const uptr kHiAppMemEnd = 0x3ffffffffffull;
222 static const uptr kAppMemMsk = 0x3c000000000ull;
223 static const uptr kAppMemXor = 0x04000000000ull;
224 static const uptr kVdsoBeg = 0x37f00000000ull;
228 static const uptr kLoAppMemBeg = 0x0000000001000ull;
229 static const uptr kLoAppMemEnd = 0x0000200000000ull;
230 static const uptr kShadowBeg = 0x0002000000000ull;
231 static const uptr kShadowEnd = 0x0004000000000ull;
232 static const uptr kMetaShadowBeg = 0x0005000000000ull;
233 static const uptr kMetaShadowEnd = 0x0006000000000ull;
234 static const uptr kMidAppMemBeg = 0x0aaaa00000000ull;
235 static const uptr kMidAppMemEnd = 0x0aaaf00000000ull;
236 static const uptr kTraceMemBeg = 0x0f06000000000ull;
237 static const uptr kTraceMemEnd = 0x0f06200000000ull;
238 static const uptr kHeapMemBeg = 0x0ffff00000000ull;
239 static const uptr kHeapMemEnd = 0x0ffff00000000ull;
240 static const uptr kHiAppMemBeg = 0x0ffff00000000ull;
241 static const uptr kHiAppMemEnd = 0x1000000000000ull;
242 static const uptr kAppMemMsk = 0x0fff800000000ull;
243 static const uptr kAppMemXor = 0x0000800000000ull;
244 static const uptr kVdsoBeg = 0xffff000000000ull;
247 // Indicates the runtime will define the memory regions at runtime.
248 #define TSAN_RUNTIME_VMA 1
249 // Indicates that mapping defines a mid range memory segment.
250 #define TSAN_MID_APP_RANGE 1
251 #elif defined(__powerpc64__)
252 // PPC64 supports multiple VMA which leads to multiple address transformation
253 // functions. To support these multiple VMAS transformations and mappings TSAN
254 // runtime for PPC64 uses an external memory read (vmaSize) to select which
255 // mapping to use. Although slower, it make a same instrumented binary run on
259 C/C++ on linux/powerpc64 (44-bit VMA)
260 0000 0000 0100 - 0001 0000 0000: main binary
261 0001 0000 0000 - 0001 0000 0000: -
262 0001 0000 0000 - 0b00 0000 0000: shadow
263 0b00 0000 0000 - 0b00 0000 0000: -
264 0b00 0000 0000 - 0d00 0000 0000: metainfo (memory blocks and sync objects)
265 0d00 0000 0000 - 0d00 0000 0000: -
266 0d00 0000 0000 - 0f00 0000 0000: traces
267 0f00 0000 0000 - 0f00 0000 0000: -
268 0f00 0000 0000 - 0f50 0000 0000: heap
269 0f50 0000 0000 - 0f60 0000 0000: -
270 0f60 0000 0000 - 1000 0000 0000: modules and main thread stack
273 static const uptr kMetaShadowBeg = 0x0b0000000000ull;
274 static const uptr kMetaShadowEnd = 0x0d0000000000ull;
275 static const uptr kTraceMemBeg = 0x0d0000000000ull;
276 static const uptr kTraceMemEnd = 0x0f0000000000ull;
277 static const uptr kShadowBeg = 0x000100000000ull;
278 static const uptr kShadowEnd = 0x0b0000000000ull;
279 static const uptr kLoAppMemBeg = 0x000000000100ull;
280 static const uptr kLoAppMemEnd = 0x000100000000ull;
281 static const uptr kHeapMemBeg = 0x0f0000000000ull;
282 static const uptr kHeapMemEnd = 0x0f5000000000ull;
283 static const uptr kHiAppMemBeg = 0x0f6000000000ull;
284 static const uptr kHiAppMemEnd = 0x100000000000ull; // 44 bits
285 static const uptr kAppMemMsk = 0x0f0000000000ull;
286 static const uptr kAppMemXor = 0x002100000000ull;
287 static const uptr kVdsoBeg = 0x3c0000000000000ull;
291 C/C++ on linux/powerpc64 (46-bit VMA)
292 0000 0000 1000 - 0100 0000 0000: main binary
293 0100 0000 0000 - 0200 0000 0000: -
294 0100 0000 0000 - 1000 0000 0000: shadow
295 1000 0000 0000 - 1000 0000 0000: -
296 1000 0000 0000 - 2000 0000 0000: metainfo (memory blocks and sync objects)
297 2000 0000 0000 - 2000 0000 0000: -
298 2000 0000 0000 - 2200 0000 0000: traces
299 2200 0000 0000 - 3d00 0000 0000: -
300 3d00 0000 0000 - 3e00 0000 0000: heap
301 3e00 0000 0000 - 3e80 0000 0000: -
302 3e80 0000 0000 - 4000 0000 0000: modules and main thread stack
305 static const uptr kMetaShadowBeg = 0x100000000000ull;
306 static const uptr kMetaShadowEnd = 0x200000000000ull;
307 static const uptr kTraceMemBeg = 0x200000000000ull;
308 static const uptr kTraceMemEnd = 0x220000000000ull;
309 static const uptr kShadowBeg = 0x010000000000ull;
310 static const uptr kShadowEnd = 0x100000000000ull;
311 static const uptr kHeapMemBeg = 0x3d0000000000ull;
312 static const uptr kHeapMemEnd = 0x3e0000000000ull;
313 static const uptr kLoAppMemBeg = 0x000000001000ull;
314 static const uptr kLoAppMemEnd = 0x010000000000ull;
315 static const uptr kHiAppMemBeg = 0x3e8000000000ull;
316 static const uptr kHiAppMemEnd = 0x400000000000ull; // 46 bits
317 static const uptr kAppMemMsk = 0x3c0000000000ull;
318 static const uptr kAppMemXor = 0x020000000000ull;
319 static const uptr kVdsoBeg = 0x7800000000000000ull;
323 C/C++ on linux/powerpc64 (47-bit VMA)
324 0000 0000 1000 - 0100 0000 0000: main binary
325 0100 0000 0000 - 0200 0000 0000: -
326 0100 0000 0000 - 1000 0000 0000: shadow
327 1000 0000 0000 - 1000 0000 0000: -
328 1000 0000 0000 - 2000 0000 0000: metainfo (memory blocks and sync objects)
329 2000 0000 0000 - 2000 0000 0000: -
330 2000 0000 0000 - 2200 0000 0000: traces
331 2200 0000 0000 - 7d00 0000 0000: -
332 7d00 0000 0000 - 7e00 0000 0000: heap
333 7e00 0000 0000 - 7e80 0000 0000: -
334 7e80 0000 0000 - 8000 0000 0000: modules and main thread stack
337 static const uptr kMetaShadowBeg = 0x100000000000ull;
338 static const uptr kMetaShadowEnd = 0x200000000000ull;
339 static const uptr kTraceMemBeg = 0x200000000000ull;
340 static const uptr kTraceMemEnd = 0x220000000000ull;
341 static const uptr kShadowBeg = 0x010000000000ull;
342 static const uptr kShadowEnd = 0x100000000000ull;
343 static const uptr kHeapMemBeg = 0x7d0000000000ull;
344 static const uptr kHeapMemEnd = 0x7e0000000000ull;
345 static const uptr kLoAppMemBeg = 0x000000001000ull;
346 static const uptr kLoAppMemEnd = 0x010000000000ull;
347 static const uptr kHiAppMemBeg = 0x7e8000000000ull;
348 static const uptr kHiAppMemEnd = 0x800000000000ull; // 47 bits
349 static const uptr kAppMemMsk = 0x7c0000000000ull;
350 static const uptr kAppMemXor = 0x020000000000ull;
351 static const uptr kVdsoBeg = 0x7800000000000000ull;
354 // Indicates the runtime will define the memory regions at runtime.
355 #define TSAN_RUNTIME_VMA 1
358 #elif SANITIZER_GO && !SANITIZER_WINDOWS
360 /* Go on linux, darwin and freebsd
361 0000 0000 1000 - 0000 1000 0000: executable
362 0000 1000 0000 - 00c0 0000 0000: -
363 00c0 0000 0000 - 00e0 0000 0000: heap
364 00e0 0000 0000 - 2000 0000 0000: -
365 2000 0000 0000 - 2380 0000 0000: shadow
366 2380 0000 0000 - 3000 0000 0000: -
367 3000 0000 0000 - 4000 0000 0000: metainfo (memory blocks and sync objects)
368 4000 0000 0000 - 6000 0000 0000: -
369 6000 0000 0000 - 6200 0000 0000: traces
370 6200 0000 0000 - 8000 0000 0000: -
374 static const uptr kMetaShadowBeg = 0x300000000000ull;
375 static const uptr kMetaShadowEnd = 0x400000000000ull;
376 static const uptr kTraceMemBeg = 0x600000000000ull;
377 static const uptr kTraceMemEnd = 0x620000000000ull;
378 static const uptr kShadowBeg = 0x200000000000ull;
379 static const uptr kShadowEnd = 0x238000000000ull;
380 static const uptr kAppMemBeg = 0x000000001000ull;
381 static const uptr kAppMemEnd = 0x00e000000000ull;
384 #elif SANITIZER_GO && SANITIZER_WINDOWS
387 0000 0000 1000 - 0000 1000 0000: executable
388 0000 1000 0000 - 00f8 0000 0000: -
389 00c0 0000 0000 - 00e0 0000 0000: heap
390 00e0 0000 0000 - 0100 0000 0000: -
391 0100 0000 0000 - 0500 0000 0000: shadow
392 0500 0000 0000 - 0560 0000 0000: -
393 0560 0000 0000 - 0760 0000 0000: traces
394 0760 0000 0000 - 07d0 0000 0000: metainfo (memory blocks and sync objects)
395 07d0 0000 0000 - 8000 0000 0000: -
399 static const uptr kMetaShadowBeg = 0x076000000000ull;
400 static const uptr kMetaShadowEnd = 0x07d000000000ull;
401 static const uptr kTraceMemBeg = 0x056000000000ull;
402 static const uptr kTraceMemEnd = 0x076000000000ull;
403 static const uptr kShadowBeg = 0x010000000000ull;
404 static const uptr kShadowEnd = 0x050000000000ull;
405 static const uptr kAppMemBeg = 0x000000001000ull;
406 static const uptr kAppMemEnd = 0x00e000000000ull;
410 # error "Unknown platform"
414 #ifdef TSAN_RUNTIME_VMA
424 #ifdef TSAN_MID_APP_RANGE
434 MAPPING_META_SHADOW_BEG,
435 MAPPING_META_SHADOW_END,
441 template<typename Mapping, int Type>
442 uptr MappingImpl(void) {
445 case MAPPING_LO_APP_BEG: return Mapping::kLoAppMemBeg;
446 case MAPPING_LO_APP_END: return Mapping::kLoAppMemEnd;
447 # ifdef TSAN_MID_APP_RANGE
448 case MAPPING_MID_APP_BEG: return Mapping::kMidAppMemBeg;
449 case MAPPING_MID_APP_END: return Mapping::kMidAppMemEnd;
451 case MAPPING_HI_APP_BEG: return Mapping::kHiAppMemBeg;
452 case MAPPING_HI_APP_END: return Mapping::kHiAppMemEnd;
453 case MAPPING_HEAP_BEG: return Mapping::kHeapMemBeg;
454 case MAPPING_HEAP_END: return Mapping::kHeapMemEnd;
455 case MAPPING_VDSO_BEG: return Mapping::kVdsoBeg;
457 case MAPPING_APP_BEG: return Mapping::kAppMemBeg;
458 case MAPPING_APP_END: return Mapping::kAppMemEnd;
460 case MAPPING_SHADOW_BEG: return Mapping::kShadowBeg;
461 case MAPPING_SHADOW_END: return Mapping::kShadowEnd;
462 case MAPPING_META_SHADOW_BEG: return Mapping::kMetaShadowBeg;
463 case MAPPING_META_SHADOW_END: return Mapping::kMetaShadowEnd;
464 case MAPPING_TRACE_BEG: return Mapping::kTraceMemBeg;
465 case MAPPING_TRACE_END: return Mapping::kTraceMemEnd;
470 uptr MappingArchImpl(void) {
471 #if defined(__aarch64__) && !defined(__APPLE__)
473 case 39: return MappingImpl<Mapping39, Type>();
474 case 42: return MappingImpl<Mapping42, Type>();
475 case 48: return MappingImpl<Mapping48, Type>();
479 #elif defined(__powerpc64__)
481 case 44: return MappingImpl<Mapping44, Type>();
482 case 46: return MappingImpl<Mapping46, Type>();
483 case 47: return MappingImpl<Mapping47, Type>();
488 return MappingImpl<Mapping, Type>();
494 uptr LoAppMemBeg(void) {
495 return MappingArchImpl<MAPPING_LO_APP_BEG>();
498 uptr LoAppMemEnd(void) {
499 return MappingArchImpl<MAPPING_LO_APP_END>();
502 #ifdef TSAN_MID_APP_RANGE
504 uptr MidAppMemBeg(void) {
505 return MappingArchImpl<MAPPING_MID_APP_BEG>();
508 uptr MidAppMemEnd(void) {
509 return MappingArchImpl<MAPPING_MID_APP_END>();
514 uptr HeapMemBeg(void) {
515 return MappingArchImpl<MAPPING_HEAP_BEG>();
518 uptr HeapMemEnd(void) {
519 return MappingArchImpl<MAPPING_HEAP_END>();
523 uptr HiAppMemBeg(void) {
524 return MappingArchImpl<MAPPING_HI_APP_BEG>();
527 uptr HiAppMemEnd(void) {
528 return MappingArchImpl<MAPPING_HI_APP_END>();
533 return MappingArchImpl<MAPPING_VDSO_BEG>();
539 uptr AppMemBeg(void) {
540 return MappingArchImpl<MAPPING_APP_BEG>();
543 uptr AppMemEnd(void) {
544 return MappingArchImpl<MAPPING_APP_END>();
550 bool GetUserRegion(int i, uptr *start, uptr *end) {
556 *start = LoAppMemBeg();
557 *end = LoAppMemEnd();
560 *start = HiAppMemBeg();
561 *end = HiAppMemEnd();
564 *start = HeapMemBeg();
567 # ifdef TSAN_MID_APP_RANGE
569 *start = MidAppMemBeg();
570 *end = MidAppMemEnd();
575 *start = AppMemBeg();
583 uptr ShadowBeg(void) {
584 return MappingArchImpl<MAPPING_SHADOW_BEG>();
587 uptr ShadowEnd(void) {
588 return MappingArchImpl<MAPPING_SHADOW_END>();
592 uptr MetaShadowBeg(void) {
593 return MappingArchImpl<MAPPING_META_SHADOW_BEG>();
596 uptr MetaShadowEnd(void) {
597 return MappingArchImpl<MAPPING_META_SHADOW_END>();
601 uptr TraceMemBeg(void) {
602 return MappingArchImpl<MAPPING_TRACE_BEG>();
605 uptr TraceMemEnd(void) {
606 return MappingArchImpl<MAPPING_TRACE_END>();
610 template<typename Mapping>
611 bool IsAppMemImpl(uptr mem) {
613 return (mem >= Mapping::kHeapMemBeg && mem < Mapping::kHeapMemEnd) ||
614 # ifdef TSAN_MID_APP_RANGE
615 (mem >= Mapping::kMidAppMemBeg && mem < Mapping::kMidAppMemEnd) ||
617 (mem >= Mapping::kLoAppMemBeg && mem < Mapping::kLoAppMemEnd) ||
618 (mem >= Mapping::kHiAppMemBeg && mem < Mapping::kHiAppMemEnd);
620 return mem >= Mapping::kAppMemBeg && mem < Mapping::kAppMemEnd;
625 bool IsAppMem(uptr mem) {
626 #if defined(__aarch64__) && !defined(__APPLE__)
628 case 39: return IsAppMemImpl<Mapping39>(mem);
629 case 42: return IsAppMemImpl<Mapping42>(mem);
630 case 48: return IsAppMemImpl<Mapping48>(mem);
634 #elif defined(__powerpc64__)
636 case 44: return IsAppMemImpl<Mapping44>(mem);
637 case 46: return IsAppMemImpl<Mapping46>(mem);
638 case 47: return IsAppMemImpl<Mapping47>(mem);
643 return IsAppMemImpl<Mapping>(mem);
648 template<typename Mapping>
649 bool IsShadowMemImpl(uptr mem) {
650 return mem >= Mapping::kShadowBeg && mem <= Mapping::kShadowEnd;
654 bool IsShadowMem(uptr mem) {
655 #if defined(__aarch64__) && !defined(__APPLE__)
657 case 39: return IsShadowMemImpl<Mapping39>(mem);
658 case 42: return IsShadowMemImpl<Mapping42>(mem);
659 case 48: return IsShadowMemImpl<Mapping48>(mem);
663 #elif defined(__powerpc64__)
665 case 44: return IsShadowMemImpl<Mapping44>(mem);
666 case 46: return IsShadowMemImpl<Mapping46>(mem);
667 case 47: return IsShadowMemImpl<Mapping47>(mem);
672 return IsShadowMemImpl<Mapping>(mem);
677 template<typename Mapping>
678 bool IsMetaMemImpl(uptr mem) {
679 return mem >= Mapping::kMetaShadowBeg && mem <= Mapping::kMetaShadowEnd;
683 bool IsMetaMem(uptr mem) {
684 #if defined(__aarch64__) && !defined(__APPLE__)
686 case 39: return IsMetaMemImpl<Mapping39>(mem);
687 case 42: return IsMetaMemImpl<Mapping42>(mem);
688 case 48: return IsMetaMemImpl<Mapping48>(mem);
692 #elif defined(__powerpc64__)
694 case 44: return IsMetaMemImpl<Mapping44>(mem);
695 case 46: return IsMetaMemImpl<Mapping46>(mem);
696 case 47: return IsMetaMemImpl<Mapping47>(mem);
701 return IsMetaMemImpl<Mapping>(mem);
706 template<typename Mapping>
707 uptr MemToShadowImpl(uptr x) {
710 return (((x) & ~(Mapping::kAppMemMsk | (kShadowCell - 1)))
711 ^ Mapping::kAppMemXor) * kShadowCnt;
713 # ifndef SANITIZER_WINDOWS
714 return ((x & ~(kShadowCell - 1)) * kShadowCnt) | Mapping::kShadowBeg;
716 return ((x & ~(kShadowCell - 1)) * kShadowCnt) + Mapping::kShadowBeg;
722 uptr MemToShadow(uptr x) {
723 #if defined(__aarch64__) && !defined(__APPLE__)
725 case 39: return MemToShadowImpl<Mapping39>(x);
726 case 42: return MemToShadowImpl<Mapping42>(x);
727 case 48: return MemToShadowImpl<Mapping48>(x);
731 #elif defined(__powerpc64__)
733 case 44: return MemToShadowImpl<Mapping44>(x);
734 case 46: return MemToShadowImpl<Mapping46>(x);
735 case 47: return MemToShadowImpl<Mapping47>(x);
740 return MemToShadowImpl<Mapping>(x);
745 template<typename Mapping>
746 u32 *MemToMetaImpl(uptr x) {
749 return (u32*)(((((x) & ~(Mapping::kAppMemMsk | (kMetaShadowCell - 1)))) /
750 kMetaShadowCell * kMetaShadowSize) | Mapping::kMetaShadowBeg);
752 # ifndef SANITIZER_WINDOWS
753 return (u32*)(((x & ~(kMetaShadowCell - 1)) / \
754 kMetaShadowCell * kMetaShadowSize) | Mapping::kMetaShadowBeg);
756 return (u32*)(((x & ~(kMetaShadowCell - 1)) / \
757 kMetaShadowCell * kMetaShadowSize) + Mapping::kMetaShadowBeg);
763 u32 *MemToMeta(uptr x) {
764 #if defined(__aarch64__) && !defined(__APPLE__)
766 case 39: return MemToMetaImpl<Mapping39>(x);
767 case 42: return MemToMetaImpl<Mapping42>(x);
768 case 48: return MemToMetaImpl<Mapping48>(x);
772 #elif defined(__powerpc64__)
774 case 44: return MemToMetaImpl<Mapping44>(x);
775 case 46: return MemToMetaImpl<Mapping46>(x);
776 case 47: return MemToMetaImpl<Mapping47>(x);
781 return MemToMetaImpl<Mapping>(x);
786 template<typename Mapping>
787 uptr ShadowToMemImpl(uptr s) {
788 DCHECK(IsShadowMem(s));
790 // The shadow mapping is non-linear and we've lost some bits, so we don't have
791 // an easy way to restore the original app address. But the mapping is a
792 // bijection, so we try to restore the address as belonging to low/mid/high
793 // range consecutively and see if shadow->app->shadow mapping gives us the
795 uptr p = (s / kShadowCnt) ^ Mapping::kAppMemXor;
796 if (p >= Mapping::kLoAppMemBeg && p < Mapping::kLoAppMemEnd &&
799 # ifdef TSAN_MID_APP_RANGE
800 p = ((s / kShadowCnt) ^ Mapping::kAppMemXor) +
801 (Mapping::kMidAppMemBeg & Mapping::kAppMemMsk);
802 if (p >= Mapping::kMidAppMemBeg && p < Mapping::kMidAppMemEnd &&
806 return ((s / kShadowCnt) ^ Mapping::kAppMemXor) | Mapping::kAppMemMsk;
807 #else // #if !SANITIZER_GO
808 # ifndef SANITIZER_WINDOWS
809 return (s & ~Mapping::kShadowBeg) / kShadowCnt;
811 return (s - Mapping::kShadowBeg) / kShadowCnt;
812 # endif // SANITIZER_WINDOWS
817 uptr ShadowToMem(uptr s) {
818 #if defined(__aarch64__) && !defined(__APPLE__)
820 case 39: return ShadowToMemImpl<Mapping39>(s);
821 case 42: return ShadowToMemImpl<Mapping42>(s);
822 case 48: return ShadowToMemImpl<Mapping48>(s);
826 #elif defined(__powerpc64__)
828 case 44: return ShadowToMemImpl<Mapping44>(s);
829 case 46: return ShadowToMemImpl<Mapping46>(s);
830 case 47: return ShadowToMemImpl<Mapping47>(s);
835 return ShadowToMemImpl<Mapping>(s);
841 // The additional page is to catch shadow stack overflow as paging fault.
842 // Windows wants 64K alignment for mmaps.
843 const uptr kTotalTraceSize = (kTraceSize * sizeof(Event) + sizeof(Trace)
844 + (64 << 10) + (64 << 10) - 1) & ~((64 << 10) - 1);
846 template<typename Mapping>
847 uptr GetThreadTraceImpl(int tid) {
848 uptr p = Mapping::kTraceMemBeg + (uptr)tid * kTotalTraceSize;
849 DCHECK_LT(p, Mapping::kTraceMemEnd);
854 uptr GetThreadTrace(int tid) {
855 #if defined(__aarch64__) && !defined(__APPLE__)
857 case 39: return GetThreadTraceImpl<Mapping39>(tid);
858 case 42: return GetThreadTraceImpl<Mapping42>(tid);
859 case 48: return GetThreadTraceImpl<Mapping48>(tid);
863 #elif defined(__powerpc64__)
865 case 44: return GetThreadTraceImpl<Mapping44>(tid);
866 case 46: return GetThreadTraceImpl<Mapping46>(tid);
867 case 47: return GetThreadTraceImpl<Mapping47>(tid);
872 return GetThreadTraceImpl<Mapping>(tid);
877 template<typename Mapping>
878 uptr GetThreadTraceHeaderImpl(int tid) {
879 uptr p = Mapping::kTraceMemBeg + (uptr)tid * kTotalTraceSize
880 + kTraceSize * sizeof(Event);
881 DCHECK_LT(p, Mapping::kTraceMemEnd);
886 uptr GetThreadTraceHeader(int tid) {
887 #if defined(__aarch64__) && !defined(__APPLE__)
889 case 39: return GetThreadTraceHeaderImpl<Mapping39>(tid);
890 case 42: return GetThreadTraceHeaderImpl<Mapping42>(tid);
891 case 48: return GetThreadTraceHeaderImpl<Mapping48>(tid);
895 #elif defined(__powerpc64__)
897 case 44: return GetThreadTraceHeaderImpl<Mapping44>(tid);
898 case 46: return GetThreadTraceHeaderImpl<Mapping46>(tid);
899 case 47: return GetThreadTraceHeaderImpl<Mapping47>(tid);
904 return GetThreadTraceHeaderImpl<Mapping>(tid);
908 void InitializePlatform();
909 void InitializePlatformEarly();
910 void CheckAndProtect();
911 void InitializeShadowMemoryPlatform();
912 void FlushShadowMemory();
913 void WriteMemoryProfile(char *buf, uptr buf_size, uptr nthread, uptr nlive);
914 int ExtractResolvFDs(void *state, int *fds, int nfd);
915 int ExtractRecvmsgFDs(void *msg, int *fds, int nfd);
916 void ImitateTlsWrite(ThreadState *thr, uptr tls_addr, uptr tls_size);
918 int call_pthread_cancel_with_cleanup(int(*fn)(void *c, void *m,
919 void *abstime), void *c, void *m, void *abstime,
920 void(*cleanup)(void *arg), void *arg);
922 void DestroyThreadState();
924 } // namespace __tsan
926 #endif // TSAN_PLATFORM_H