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)
83 0100 0000 00 - 0200 0000 00: main binary
84 0200 0000 00 - 1400 0000 00: -
85 1400 0000 00 - 2400 0000 00: shadow
86 2400 0000 00 - 3000 0000 00: -
87 3000 0000 00 - 4000 0000 00: metainfo (memory blocks and sync objects)
88 4000 0000 00 - 6000 0000 00: -
89 6000 0000 00 - 6200 0000 00: traces
90 6200 0000 00 - fe00 0000 00: -
91 fe00 0000 00 - ff00 0000 00: heap
92 ff00 0000 00 - ff80 0000 00: -
93 ff80 0000 00 - ffff ffff ff: modules and main thread stack
96 static const uptr kMetaShadowBeg = 0x4000000000ull;
97 static const uptr kMetaShadowEnd = 0x5000000000ull;
98 static const uptr kTraceMemBeg = 0xb000000000ull;
99 static const uptr kTraceMemEnd = 0xb200000000ull;
100 static const uptr kShadowBeg = 0x2400000000ull;
101 static const uptr kShadowEnd = 0x4000000000ull;
102 static const uptr kHeapMemBeg = 0xfe00000000ull;
103 static const uptr kHeapMemEnd = 0xff00000000ull;
104 static const uptr kLoAppMemBeg = 0x0100000000ull;
105 static const uptr kLoAppMemEnd = 0x0200000000ull;
106 static const uptr kMidAppMemBeg = 0xaa00000000ull;
107 static const uptr kMidAppMemEnd = 0xab00000000ull;
108 static const uptr kHiAppMemBeg = 0xff80000000ull;
109 static const uptr kHiAppMemEnd = 0xffffffffffull;
110 static const uptr kAppMemMsk = 0xf800000000ull;
111 static const uptr kAppMemXor = 0x0800000000ull;
112 static const uptr kVdsoBeg = 0xfffff00000ull;
115 #define TSAN_MID_APP_RANGE 1
116 #elif defined(__aarch64__) && defined(__APPLE__)
118 C/C++ on Darwin/iOS/ARM64 (36-bit VMA, 64 GB VM)
119 0000 0000 00 - 0100 0000 00: - (4 GB)
120 0100 0000 00 - 0200 0000 00: main binary, modules, thread stacks (4 GB)
121 0200 0000 00 - 0300 0000 00: heap (4 GB)
122 0300 0000 00 - 0400 0000 00: - (4 GB)
123 0400 0000 00 - 0c00 0000 00: shadow memory (32 GB)
124 0c00 0000 00 - 0d00 0000 00: - (4 GB)
125 0d00 0000 00 - 0e00 0000 00: metainfo (4 GB)
126 0e00 0000 00 - 0f00 0000 00: - (4 GB)
127 0f00 0000 00 - 0fc0 0000 00: traces (3 GB)
128 0fc0 0000 00 - 1000 0000 00: -
131 static const uptr kLoAppMemBeg = 0x0100000000ull;
132 static const uptr kLoAppMemEnd = 0x0200000000ull;
133 static const uptr kHeapMemBeg = 0x0200000000ull;
134 static const uptr kHeapMemEnd = 0x0300000000ull;
135 static const uptr kShadowBeg = 0x0400000000ull;
136 static const uptr kShadowEnd = 0x0c00000000ull;
137 static const uptr kMetaShadowBeg = 0x0d00000000ull;
138 static const uptr kMetaShadowEnd = 0x0e00000000ull;
139 static const uptr kTraceMemBeg = 0x0f00000000ull;
140 static const uptr kTraceMemEnd = 0x0fc0000000ull;
141 static const uptr kHiAppMemBeg = 0x0fc0000000ull;
142 static const uptr kHiAppMemEnd = 0x0fc0000000ull;
143 static const uptr kAppMemMsk = 0x0ull;
144 static const uptr kAppMemXor = 0x0ull;
145 static const uptr kVdsoBeg = 0x7000000000000000ull;
148 #elif defined(__aarch64__)
149 // AArch64 supports multiple VMA which leads to multiple address transformation
150 // functions. To support these multiple VMAS transformations and mappings TSAN
151 // runtime for AArch64 uses an external memory read (vmaSize) to select which
152 // mapping to use. Although slower, it make a same instrumented binary run on
156 C/C++ on linux/aarch64 (39-bit VMA)
157 0000 0010 00 - 0100 0000 00: main binary
158 0100 0000 00 - 0800 0000 00: -
159 0800 0000 00 - 2000 0000 00: shadow memory
160 2000 0000 00 - 3100 0000 00: -
161 3100 0000 00 - 3400 0000 00: metainfo
162 3400 0000 00 - 5500 0000 00: -
163 5500 0000 00 - 5600 0000 00: main binary (PIE)
164 5600 0000 00 - 6000 0000 00: -
165 6000 0000 00 - 6200 0000 00: traces
166 6200 0000 00 - 7d00 0000 00: -
167 7c00 0000 00 - 7d00 0000 00: heap
168 7d00 0000 00 - 7fff ffff ff: modules and main thread stack
171 static const uptr kLoAppMemBeg = 0x0000001000ull;
172 static const uptr kLoAppMemEnd = 0x0100000000ull;
173 static const uptr kShadowBeg = 0x0800000000ull;
174 static const uptr kShadowEnd = 0x2000000000ull;
175 static const uptr kMetaShadowBeg = 0x3100000000ull;
176 static const uptr kMetaShadowEnd = 0x3400000000ull;
177 static const uptr kMidAppMemBeg = 0x5500000000ull;
178 static const uptr kMidAppMemEnd = 0x5600000000ull;
179 static const uptr kTraceMemBeg = 0x6000000000ull;
180 static const uptr kTraceMemEnd = 0x6200000000ull;
181 static const uptr kHeapMemBeg = 0x7c00000000ull;
182 static const uptr kHeapMemEnd = 0x7d00000000ull;
183 static const uptr kHiAppMemBeg = 0x7e00000000ull;
184 static const uptr kHiAppMemEnd = 0x7fffffffffull;
185 static const uptr kAppMemMsk = 0x7800000000ull;
186 static const uptr kAppMemXor = 0x0200000000ull;
187 static const uptr kVdsoBeg = 0x7f00000000ull;
191 C/C++ on linux/aarch64 (42-bit VMA)
192 00000 0010 00 - 01000 0000 00: main binary
193 01000 0000 00 - 10000 0000 00: -
194 10000 0000 00 - 20000 0000 00: shadow memory
195 20000 0000 00 - 26000 0000 00: -
196 26000 0000 00 - 28000 0000 00: metainfo
197 28000 0000 00 - 2aa00 0000 00: -
198 2aa00 0000 00 - 2ab00 0000 00: main binary (PIE)
199 2ab00 0000 00 - 36200 0000 00: -
200 36200 0000 00 - 36240 0000 00: traces
201 36240 0000 00 - 3e000 0000 00: -
202 3e000 0000 00 - 3f000 0000 00: heap
203 3f000 0000 00 - 3ffff ffff ff: modules and main thread stack
206 static const uptr kLoAppMemBeg = 0x00000001000ull;
207 static const uptr kLoAppMemEnd = 0x01000000000ull;
208 static const uptr kShadowBeg = 0x10000000000ull;
209 static const uptr kShadowEnd = 0x20000000000ull;
210 static const uptr kMetaShadowBeg = 0x26000000000ull;
211 static const uptr kMetaShadowEnd = 0x28000000000ull;
212 static const uptr kMidAppMemBeg = 0x2aa00000000ull;
213 static const uptr kMidAppMemEnd = 0x2ab00000000ull;
214 static const uptr kTraceMemBeg = 0x36200000000ull;
215 static const uptr kTraceMemEnd = 0x36400000000ull;
216 static const uptr kHeapMemBeg = 0x3e000000000ull;
217 static const uptr kHeapMemEnd = 0x3f000000000ull;
218 static const uptr kHiAppMemBeg = 0x3f000000000ull;
219 static const uptr kHiAppMemEnd = 0x3ffffffffffull;
220 static const uptr kAppMemMsk = 0x3c000000000ull;
221 static const uptr kAppMemXor = 0x04000000000ull;
222 static const uptr kVdsoBeg = 0x37f00000000ull;
226 static const uptr kLoAppMemBeg = 0x0000000001000ull;
227 static const uptr kLoAppMemEnd = 0x0000200000000ull;
228 static const uptr kShadowBeg = 0x0002000000000ull;
229 static const uptr kShadowEnd = 0x0004000000000ull;
230 static const uptr kMetaShadowBeg = 0x0005000000000ull;
231 static const uptr kMetaShadowEnd = 0x0006000000000ull;
232 static const uptr kMidAppMemBeg = 0x0aaaa00000000ull;
233 static const uptr kMidAppMemEnd = 0x0aaaf00000000ull;
234 static const uptr kTraceMemBeg = 0x0f06000000000ull;
235 static const uptr kTraceMemEnd = 0x0f06200000000ull;
236 static const uptr kHeapMemBeg = 0x0ffff00000000ull;
237 static const uptr kHeapMemEnd = 0x0ffff00000000ull;
238 static const uptr kHiAppMemBeg = 0x0ffff00000000ull;
239 static const uptr kHiAppMemEnd = 0x1000000000000ull;
240 static const uptr kAppMemMsk = 0x0fff800000000ull;
241 static const uptr kAppMemXor = 0x0000800000000ull;
242 static const uptr kVdsoBeg = 0xffff000000000ull;
245 // Indicates the runtime will define the memory regions at runtime.
246 #define TSAN_RUNTIME_VMA 1
247 // Indicates that mapping defines a mid range memory segment.
248 #define TSAN_MID_APP_RANGE 1
249 #elif defined(__powerpc64__)
250 // PPC64 supports multiple VMA which leads to multiple address transformation
251 // functions. To support these multiple VMAS transformations and mappings TSAN
252 // runtime for PPC64 uses an external memory read (vmaSize) to select which
253 // mapping to use. Although slower, it make a same instrumented binary run on
257 C/C++ on linux/powerpc64 (44-bit VMA)
258 0000 0000 0100 - 0001 0000 0000: main binary
259 0001 0000 0000 - 0001 0000 0000: -
260 0001 0000 0000 - 0b00 0000 0000: shadow
261 0b00 0000 0000 - 0b00 0000 0000: -
262 0b00 0000 0000 - 0d00 0000 0000: metainfo (memory blocks and sync objects)
263 0d00 0000 0000 - 0d00 0000 0000: -
264 0d00 0000 0000 - 0f00 0000 0000: traces
265 0f00 0000 0000 - 0f00 0000 0000: -
266 0f00 0000 0000 - 0f50 0000 0000: heap
267 0f50 0000 0000 - 0f60 0000 0000: -
268 0f60 0000 0000 - 1000 0000 0000: modules and main thread stack
271 static const uptr kMetaShadowBeg = 0x0b0000000000ull;
272 static const uptr kMetaShadowEnd = 0x0d0000000000ull;
273 static const uptr kTraceMemBeg = 0x0d0000000000ull;
274 static const uptr kTraceMemEnd = 0x0f0000000000ull;
275 static const uptr kShadowBeg = 0x000100000000ull;
276 static const uptr kShadowEnd = 0x0b0000000000ull;
277 static const uptr kLoAppMemBeg = 0x000000000100ull;
278 static const uptr kLoAppMemEnd = 0x000100000000ull;
279 static const uptr kHeapMemBeg = 0x0f0000000000ull;
280 static const uptr kHeapMemEnd = 0x0f5000000000ull;
281 static const uptr kHiAppMemBeg = 0x0f6000000000ull;
282 static const uptr kHiAppMemEnd = 0x100000000000ull; // 44 bits
283 static const uptr kAppMemMsk = 0x0f0000000000ull;
284 static const uptr kAppMemXor = 0x002100000000ull;
285 static const uptr kVdsoBeg = 0x3c0000000000000ull;
289 C/C++ on linux/powerpc64 (46-bit VMA)
290 0000 0000 1000 - 0100 0000 0000: main binary
291 0100 0000 0000 - 0200 0000 0000: -
292 0100 0000 0000 - 1000 0000 0000: shadow
293 1000 0000 0000 - 1000 0000 0000: -
294 1000 0000 0000 - 2000 0000 0000: metainfo (memory blocks and sync objects)
295 2000 0000 0000 - 2000 0000 0000: -
296 2000 0000 0000 - 2200 0000 0000: traces
297 2200 0000 0000 - 3d00 0000 0000: -
298 3d00 0000 0000 - 3e00 0000 0000: heap
299 3e00 0000 0000 - 3e80 0000 0000: -
300 3e80 0000 0000 - 4000 0000 0000: modules and main thread stack
303 static const uptr kMetaShadowBeg = 0x100000000000ull;
304 static const uptr kMetaShadowEnd = 0x200000000000ull;
305 static const uptr kTraceMemBeg = 0x200000000000ull;
306 static const uptr kTraceMemEnd = 0x220000000000ull;
307 static const uptr kShadowBeg = 0x010000000000ull;
308 static const uptr kShadowEnd = 0x100000000000ull;
309 static const uptr kHeapMemBeg = 0x3d0000000000ull;
310 static const uptr kHeapMemEnd = 0x3e0000000000ull;
311 static const uptr kLoAppMemBeg = 0x000000001000ull;
312 static const uptr kLoAppMemEnd = 0x010000000000ull;
313 static const uptr kHiAppMemBeg = 0x3e8000000000ull;
314 static const uptr kHiAppMemEnd = 0x400000000000ull; // 46 bits
315 static const uptr kAppMemMsk = 0x3c0000000000ull;
316 static const uptr kAppMemXor = 0x020000000000ull;
317 static const uptr kVdsoBeg = 0x7800000000000000ull;
321 C/C++ on linux/powerpc64 (47-bit VMA)
322 0000 0000 1000 - 0100 0000 0000: main binary
323 0100 0000 0000 - 0200 0000 0000: -
324 0100 0000 0000 - 1000 0000 0000: shadow
325 1000 0000 0000 - 1000 0000 0000: -
326 1000 0000 0000 - 2000 0000 0000: metainfo (memory blocks and sync objects)
327 2000 0000 0000 - 2000 0000 0000: -
328 2000 0000 0000 - 2200 0000 0000: traces
329 2200 0000 0000 - 7d00 0000 0000: -
330 7d00 0000 0000 - 7e00 0000 0000: heap
331 7e00 0000 0000 - 7e80 0000 0000: -
332 7e80 0000 0000 - 8000 0000 0000: modules and main thread stack
335 static const uptr kMetaShadowBeg = 0x100000000000ull;
336 static const uptr kMetaShadowEnd = 0x200000000000ull;
337 static const uptr kTraceMemBeg = 0x200000000000ull;
338 static const uptr kTraceMemEnd = 0x220000000000ull;
339 static const uptr kShadowBeg = 0x010000000000ull;
340 static const uptr kShadowEnd = 0x100000000000ull;
341 static const uptr kHeapMemBeg = 0x7d0000000000ull;
342 static const uptr kHeapMemEnd = 0x7e0000000000ull;
343 static const uptr kLoAppMemBeg = 0x000000001000ull;
344 static const uptr kLoAppMemEnd = 0x010000000000ull;
345 static const uptr kHiAppMemBeg = 0x7e8000000000ull;
346 static const uptr kHiAppMemEnd = 0x800000000000ull; // 47 bits
347 static const uptr kAppMemMsk = 0x7c0000000000ull;
348 static const uptr kAppMemXor = 0x020000000000ull;
349 static const uptr kVdsoBeg = 0x7800000000000000ull;
352 // Indicates the runtime will define the memory regions at runtime.
353 #define TSAN_RUNTIME_VMA 1
356 #elif SANITIZER_GO && !SANITIZER_WINDOWS
358 /* Go on linux, darwin and freebsd
359 0000 0000 1000 - 0000 1000 0000: executable
360 0000 1000 0000 - 00c0 0000 0000: -
361 00c0 0000 0000 - 00e0 0000 0000: heap
362 00e0 0000 0000 - 2000 0000 0000: -
363 2000 0000 0000 - 2380 0000 0000: shadow
364 2380 0000 0000 - 3000 0000 0000: -
365 3000 0000 0000 - 4000 0000 0000: metainfo (memory blocks and sync objects)
366 4000 0000 0000 - 6000 0000 0000: -
367 6000 0000 0000 - 6200 0000 0000: traces
368 6200 0000 0000 - 8000 0000 0000: -
372 static const uptr kMetaShadowBeg = 0x300000000000ull;
373 static const uptr kMetaShadowEnd = 0x400000000000ull;
374 static const uptr kTraceMemBeg = 0x600000000000ull;
375 static const uptr kTraceMemEnd = 0x620000000000ull;
376 static const uptr kShadowBeg = 0x200000000000ull;
377 static const uptr kShadowEnd = 0x238000000000ull;
378 static const uptr kAppMemBeg = 0x000000001000ull;
379 static const uptr kAppMemEnd = 0x00e000000000ull;
382 #elif SANITIZER_GO && SANITIZER_WINDOWS
385 0000 0000 1000 - 0000 1000 0000: executable
386 0000 1000 0000 - 00f8 0000 0000: -
387 00c0 0000 0000 - 00e0 0000 0000: heap
388 00e0 0000 0000 - 0100 0000 0000: -
389 0100 0000 0000 - 0500 0000 0000: shadow
390 0500 0000 0000 - 0560 0000 0000: -
391 0560 0000 0000 - 0760 0000 0000: traces
392 0760 0000 0000 - 07d0 0000 0000: metainfo (memory blocks and sync objects)
393 07d0 0000 0000 - 8000 0000 0000: -
397 static const uptr kMetaShadowBeg = 0x076000000000ull;
398 static const uptr kMetaShadowEnd = 0x07d000000000ull;
399 static const uptr kTraceMemBeg = 0x056000000000ull;
400 static const uptr kTraceMemEnd = 0x076000000000ull;
401 static const uptr kShadowBeg = 0x010000000000ull;
402 static const uptr kShadowEnd = 0x050000000000ull;
403 static const uptr kAppMemBeg = 0x000000001000ull;
404 static const uptr kAppMemEnd = 0x00e000000000ull;
408 # error "Unknown platform"
412 #ifdef TSAN_RUNTIME_VMA
422 #ifdef TSAN_MID_APP_RANGE
432 MAPPING_META_SHADOW_BEG,
433 MAPPING_META_SHADOW_END,
439 template<typename Mapping, int Type>
440 uptr MappingImpl(void) {
443 case MAPPING_LO_APP_BEG: return Mapping::kLoAppMemBeg;
444 case MAPPING_LO_APP_END: return Mapping::kLoAppMemEnd;
445 # ifdef TSAN_MID_APP_RANGE
446 case MAPPING_MID_APP_BEG: return Mapping::kMidAppMemBeg;
447 case MAPPING_MID_APP_END: return Mapping::kMidAppMemEnd;
449 case MAPPING_HI_APP_BEG: return Mapping::kHiAppMemBeg;
450 case MAPPING_HI_APP_END: return Mapping::kHiAppMemEnd;
451 case MAPPING_HEAP_BEG: return Mapping::kHeapMemBeg;
452 case MAPPING_HEAP_END: return Mapping::kHeapMemEnd;
453 case MAPPING_VDSO_BEG: return Mapping::kVdsoBeg;
455 case MAPPING_APP_BEG: return Mapping::kAppMemBeg;
456 case MAPPING_APP_END: return Mapping::kAppMemEnd;
458 case MAPPING_SHADOW_BEG: return Mapping::kShadowBeg;
459 case MAPPING_SHADOW_END: return Mapping::kShadowEnd;
460 case MAPPING_META_SHADOW_BEG: return Mapping::kMetaShadowBeg;
461 case MAPPING_META_SHADOW_END: return Mapping::kMetaShadowEnd;
462 case MAPPING_TRACE_BEG: return Mapping::kTraceMemBeg;
463 case MAPPING_TRACE_END: return Mapping::kTraceMemEnd;
468 uptr MappingArchImpl(void) {
469 #if defined(__aarch64__) && !defined(__APPLE__)
471 case 39: return MappingImpl<Mapping39, Type>();
472 case 42: return MappingImpl<Mapping42, Type>();
473 case 48: return MappingImpl<Mapping48, Type>();
477 #elif defined(__powerpc64__)
479 case 44: return MappingImpl<Mapping44, Type>();
480 case 46: return MappingImpl<Mapping46, Type>();
481 case 47: return MappingImpl<Mapping47, Type>();
486 return MappingImpl<Mapping, Type>();
492 uptr LoAppMemBeg(void) {
493 return MappingArchImpl<MAPPING_LO_APP_BEG>();
496 uptr LoAppMemEnd(void) {
497 return MappingArchImpl<MAPPING_LO_APP_END>();
500 #ifdef TSAN_MID_APP_RANGE
502 uptr MidAppMemBeg(void) {
503 return MappingArchImpl<MAPPING_MID_APP_BEG>();
506 uptr MidAppMemEnd(void) {
507 return MappingArchImpl<MAPPING_MID_APP_END>();
512 uptr HeapMemBeg(void) {
513 return MappingArchImpl<MAPPING_HEAP_BEG>();
516 uptr HeapMemEnd(void) {
517 return MappingArchImpl<MAPPING_HEAP_END>();
521 uptr HiAppMemBeg(void) {
522 return MappingArchImpl<MAPPING_HI_APP_BEG>();
525 uptr HiAppMemEnd(void) {
526 return MappingArchImpl<MAPPING_HI_APP_END>();
531 return MappingArchImpl<MAPPING_VDSO_BEG>();
537 uptr AppMemBeg(void) {
538 return MappingArchImpl<MAPPING_APP_BEG>();
541 uptr AppMemEnd(void) {
542 return MappingArchImpl<MAPPING_APP_END>();
548 bool GetUserRegion(int i, uptr *start, uptr *end) {
554 *start = LoAppMemBeg();
555 *end = LoAppMemEnd();
558 *start = HiAppMemBeg();
559 *end = HiAppMemEnd();
562 *start = HeapMemBeg();
565 # ifdef TSAN_MID_APP_RANGE
567 *start = MidAppMemBeg();
568 *end = MidAppMemEnd();
573 *start = AppMemBeg();
581 uptr ShadowBeg(void) {
582 return MappingArchImpl<MAPPING_SHADOW_BEG>();
585 uptr ShadowEnd(void) {
586 return MappingArchImpl<MAPPING_SHADOW_END>();
590 uptr MetaShadowBeg(void) {
591 return MappingArchImpl<MAPPING_META_SHADOW_BEG>();
594 uptr MetaShadowEnd(void) {
595 return MappingArchImpl<MAPPING_META_SHADOW_END>();
599 uptr TraceMemBeg(void) {
600 return MappingArchImpl<MAPPING_TRACE_BEG>();
603 uptr TraceMemEnd(void) {
604 return MappingArchImpl<MAPPING_TRACE_END>();
608 template<typename Mapping>
609 bool IsAppMemImpl(uptr mem) {
611 return (mem >= Mapping::kHeapMemBeg && mem < Mapping::kHeapMemEnd) ||
612 # ifdef TSAN_MID_APP_RANGE
613 (mem >= Mapping::kMidAppMemBeg && mem < Mapping::kMidAppMemEnd) ||
615 (mem >= Mapping::kLoAppMemBeg && mem < Mapping::kLoAppMemEnd) ||
616 (mem >= Mapping::kHiAppMemBeg && mem < Mapping::kHiAppMemEnd);
618 return mem >= Mapping::kAppMemBeg && mem < Mapping::kAppMemEnd;
623 bool IsAppMem(uptr mem) {
624 #if defined(__aarch64__) && !defined(__APPLE__)
626 case 39: return IsAppMemImpl<Mapping39>(mem);
627 case 42: return IsAppMemImpl<Mapping42>(mem);
628 case 48: return IsAppMemImpl<Mapping48>(mem);
632 #elif defined(__powerpc64__)
634 case 44: return IsAppMemImpl<Mapping44>(mem);
635 case 46: return IsAppMemImpl<Mapping46>(mem);
636 case 47: return IsAppMemImpl<Mapping47>(mem);
641 return IsAppMemImpl<Mapping>(mem);
646 template<typename Mapping>
647 bool IsShadowMemImpl(uptr mem) {
648 return mem >= Mapping::kShadowBeg && mem <= Mapping::kShadowEnd;
652 bool IsShadowMem(uptr mem) {
653 #if defined(__aarch64__) && !defined(__APPLE__)
655 case 39: return IsShadowMemImpl<Mapping39>(mem);
656 case 42: return IsShadowMemImpl<Mapping42>(mem);
657 case 48: return IsShadowMemImpl<Mapping48>(mem);
661 #elif defined(__powerpc64__)
663 case 44: return IsShadowMemImpl<Mapping44>(mem);
664 case 46: return IsShadowMemImpl<Mapping46>(mem);
665 case 47: return IsShadowMemImpl<Mapping47>(mem);
670 return IsShadowMemImpl<Mapping>(mem);
675 template<typename Mapping>
676 bool IsMetaMemImpl(uptr mem) {
677 return mem >= Mapping::kMetaShadowBeg && mem <= Mapping::kMetaShadowEnd;
681 bool IsMetaMem(uptr mem) {
682 #if defined(__aarch64__) && !defined(__APPLE__)
684 case 39: return IsMetaMemImpl<Mapping39>(mem);
685 case 42: return IsMetaMemImpl<Mapping42>(mem);
686 case 48: return IsMetaMemImpl<Mapping48>(mem);
690 #elif defined(__powerpc64__)
692 case 44: return IsMetaMemImpl<Mapping44>(mem);
693 case 46: return IsMetaMemImpl<Mapping46>(mem);
694 case 47: return IsMetaMemImpl<Mapping47>(mem);
699 return IsMetaMemImpl<Mapping>(mem);
704 template<typename Mapping>
705 uptr MemToShadowImpl(uptr x) {
708 return (((x) & ~(Mapping::kAppMemMsk | (kShadowCell - 1)))
709 ^ Mapping::kAppMemXor) * kShadowCnt;
711 # ifndef SANITIZER_WINDOWS
712 return ((x & ~(kShadowCell - 1)) * kShadowCnt) | Mapping::kShadowBeg;
714 return ((x & ~(kShadowCell - 1)) * kShadowCnt) + Mapping::kShadowBeg;
720 uptr MemToShadow(uptr x) {
721 #if defined(__aarch64__) && !defined(__APPLE__)
723 case 39: return MemToShadowImpl<Mapping39>(x);
724 case 42: return MemToShadowImpl<Mapping42>(x);
725 case 48: return MemToShadowImpl<Mapping48>(x);
729 #elif defined(__powerpc64__)
731 case 44: return MemToShadowImpl<Mapping44>(x);
732 case 46: return MemToShadowImpl<Mapping46>(x);
733 case 47: return MemToShadowImpl<Mapping47>(x);
738 return MemToShadowImpl<Mapping>(x);
743 template<typename Mapping>
744 u32 *MemToMetaImpl(uptr x) {
747 return (u32*)(((((x) & ~(Mapping::kAppMemMsk | (kMetaShadowCell - 1)))) /
748 kMetaShadowCell * kMetaShadowSize) | Mapping::kMetaShadowBeg);
750 # ifndef SANITIZER_WINDOWS
751 return (u32*)(((x & ~(kMetaShadowCell - 1)) / \
752 kMetaShadowCell * kMetaShadowSize) | Mapping::kMetaShadowBeg);
754 return (u32*)(((x & ~(kMetaShadowCell - 1)) / \
755 kMetaShadowCell * kMetaShadowSize) + Mapping::kMetaShadowBeg);
761 u32 *MemToMeta(uptr x) {
762 #if defined(__aarch64__) && !defined(__APPLE__)
764 case 39: return MemToMetaImpl<Mapping39>(x);
765 case 42: return MemToMetaImpl<Mapping42>(x);
766 case 48: return MemToMetaImpl<Mapping48>(x);
770 #elif defined(__powerpc64__)
772 case 44: return MemToMetaImpl<Mapping44>(x);
773 case 46: return MemToMetaImpl<Mapping46>(x);
774 case 47: return MemToMetaImpl<Mapping47>(x);
779 return MemToMetaImpl<Mapping>(x);
784 template<typename Mapping>
785 uptr ShadowToMemImpl(uptr s) {
786 DCHECK(IsShadowMem(s));
788 // The shadow mapping is non-linear and we've lost some bits, so we don't have
789 // an easy way to restore the original app address. But the mapping is a
790 // bijection, so we try to restore the address as belonging to low/mid/high
791 // range consecutively and see if shadow->app->shadow mapping gives us the
793 uptr p = (s / kShadowCnt) ^ Mapping::kAppMemXor;
794 if (p >= Mapping::kLoAppMemBeg && p < Mapping::kLoAppMemEnd &&
797 # ifdef TSAN_MID_APP_RANGE
798 p = ((s / kShadowCnt) ^ Mapping::kAppMemXor) +
799 (Mapping::kMidAppMemBeg & Mapping::kAppMemMsk);
800 if (p >= Mapping::kMidAppMemBeg && p < Mapping::kMidAppMemEnd &&
804 return ((s / kShadowCnt) ^ Mapping::kAppMemXor) | Mapping::kAppMemMsk;
805 #else // #if !SANITIZER_GO
806 # ifndef SANITIZER_WINDOWS
807 return (s & ~Mapping::kShadowBeg) / kShadowCnt;
809 return (s - Mapping::kShadowBeg) / kShadowCnt;
810 # endif // SANITIZER_WINDOWS
815 uptr ShadowToMem(uptr s) {
816 #if defined(__aarch64__) && !defined(__APPLE__)
818 case 39: return ShadowToMemImpl<Mapping39>(s);
819 case 42: return ShadowToMemImpl<Mapping42>(s);
820 case 48: return ShadowToMemImpl<Mapping48>(s);
824 #elif defined(__powerpc64__)
826 case 44: return ShadowToMemImpl<Mapping44>(s);
827 case 46: return ShadowToMemImpl<Mapping46>(s);
828 case 47: return ShadowToMemImpl<Mapping47>(s);
833 return ShadowToMemImpl<Mapping>(s);
839 // The additional page is to catch shadow stack overflow as paging fault.
840 // Windows wants 64K alignment for mmaps.
841 const uptr kTotalTraceSize = (kTraceSize * sizeof(Event) + sizeof(Trace)
842 + (64 << 10) + (64 << 10) - 1) & ~((64 << 10) - 1);
844 template<typename Mapping>
845 uptr GetThreadTraceImpl(int tid) {
846 uptr p = Mapping::kTraceMemBeg + (uptr)tid * kTotalTraceSize;
847 DCHECK_LT(p, Mapping::kTraceMemEnd);
852 uptr GetThreadTrace(int tid) {
853 #if defined(__aarch64__) && !defined(__APPLE__)
855 case 39: return GetThreadTraceImpl<Mapping39>(tid);
856 case 42: return GetThreadTraceImpl<Mapping42>(tid);
857 case 48: return GetThreadTraceImpl<Mapping48>(tid);
861 #elif defined(__powerpc64__)
863 case 44: return GetThreadTraceImpl<Mapping44>(tid);
864 case 46: return GetThreadTraceImpl<Mapping46>(tid);
865 case 47: return GetThreadTraceImpl<Mapping47>(tid);
870 return GetThreadTraceImpl<Mapping>(tid);
875 template<typename Mapping>
876 uptr GetThreadTraceHeaderImpl(int tid) {
877 uptr p = Mapping::kTraceMemBeg + (uptr)tid * kTotalTraceSize
878 + kTraceSize * sizeof(Event);
879 DCHECK_LT(p, Mapping::kTraceMemEnd);
884 uptr GetThreadTraceHeader(int tid) {
885 #if defined(__aarch64__) && !defined(__APPLE__)
887 case 39: return GetThreadTraceHeaderImpl<Mapping39>(tid);
888 case 42: return GetThreadTraceHeaderImpl<Mapping42>(tid);
889 case 48: return GetThreadTraceHeaderImpl<Mapping48>(tid);
893 #elif defined(__powerpc64__)
895 case 44: return GetThreadTraceHeaderImpl<Mapping44>(tid);
896 case 46: return GetThreadTraceHeaderImpl<Mapping46>(tid);
897 case 47: return GetThreadTraceHeaderImpl<Mapping47>(tid);
902 return GetThreadTraceHeaderImpl<Mapping>(tid);
906 void InitializePlatform();
907 void InitializePlatformEarly();
908 void CheckAndProtect();
909 void InitializeShadowMemoryPlatform();
910 void FlushShadowMemory();
911 void WriteMemoryProfile(char *buf, uptr buf_size, uptr nthread, uptr nlive);
912 int ExtractResolvFDs(void *state, int *fds, int nfd);
913 int ExtractRecvmsgFDs(void *msg, int *fds, int nfd);
914 void ImitateTlsWrite(ThreadState *thr, uptr tls_addr, uptr tls_size);
916 int call_pthread_cancel_with_cleanup(int(*fn)(void *c, void *m,
917 void *abstime), void *c, void *m, void *abstime,
918 void(*cleanup)(void *arg), void *arg);
920 void DestroyThreadState();
922 } // namespace __tsan
924 #endif // TSAN_PLATFORM_H