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 && defined(__x86_64__)
360 /* Go on linux, darwin and freebsd on x86_64
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;
409 #elif SANITIZER_GO && defined(__powerpc64__)
411 /* Only Mapping46 and Mapping47 are currently supported for powercp64 on Go. */
413 /* Go on linux/powerpc64 (46-bit VMA)
414 0000 0000 1000 - 0000 1000 0000: executable
415 0000 1000 0000 - 00c0 0000 0000: -
416 00c0 0000 0000 - 00e0 0000 0000: heap
417 00e0 0000 0000 - 2000 0000 0000: -
418 2000 0000 0000 - 2380 0000 0000: shadow
419 2380 0000 0000 - 2400 0000 0000: -
420 2400 0000 0000 - 3400 0000 0000: metainfo (memory blocks and sync objects)
421 3400 0000 0000 - 3600 0000 0000: -
422 3600 0000 0000 - 3800 0000 0000: traces
423 3800 0000 0000 - 4000 0000 0000: -
427 static const uptr kMetaShadowBeg = 0x240000000000ull;
428 static const uptr kMetaShadowEnd = 0x340000000000ull;
429 static const uptr kTraceMemBeg = 0x360000000000ull;
430 static const uptr kTraceMemEnd = 0x380000000000ull;
431 static const uptr kShadowBeg = 0x200000000000ull;
432 static const uptr kShadowEnd = 0x238000000000ull;
433 static const uptr kAppMemBeg = 0x000000001000ull;
434 static const uptr kAppMemEnd = 0x00e000000000ull;
437 /* Go on linux/powerpc64 (47-bit VMA)
438 0000 0000 1000 - 0000 1000 0000: executable
439 0000 1000 0000 - 00c0 0000 0000: -
440 00c0 0000 0000 - 00e0 0000 0000: heap
441 00e0 0000 0000 - 2000 0000 0000: -
442 2000 0000 0000 - 3000 0000 0000: shadow
443 3000 0000 0000 - 3000 0000 0000: -
444 3000 0000 0000 - 4000 0000 0000: metainfo (memory blocks and sync objects)
445 4000 0000 0000 - 6000 0000 0000: -
446 6000 0000 0000 - 6200 0000 0000: traces
447 6200 0000 0000 - 8000 0000 0000: -
451 static const uptr kMetaShadowBeg = 0x300000000000ull;
452 static const uptr kMetaShadowEnd = 0x400000000000ull;
453 static const uptr kTraceMemBeg = 0x600000000000ull;
454 static const uptr kTraceMemEnd = 0x620000000000ull;
455 static const uptr kShadowBeg = 0x200000000000ull;
456 static const uptr kShadowEnd = 0x300000000000ull;
457 static const uptr kAppMemBeg = 0x000000001000ull;
458 static const uptr kAppMemEnd = 0x00e000000000ull;
461 // Indicates the runtime will define the memory regions at runtime.
462 #define TSAN_RUNTIME_VMA 1
465 # error "Unknown platform"
469 #ifdef TSAN_RUNTIME_VMA
479 #ifdef TSAN_MID_APP_RANGE
489 MAPPING_META_SHADOW_BEG,
490 MAPPING_META_SHADOW_END,
496 template<typename Mapping, int Type>
497 uptr MappingImpl(void) {
500 case MAPPING_LO_APP_BEG: return Mapping::kLoAppMemBeg;
501 case MAPPING_LO_APP_END: return Mapping::kLoAppMemEnd;
502 # ifdef TSAN_MID_APP_RANGE
503 case MAPPING_MID_APP_BEG: return Mapping::kMidAppMemBeg;
504 case MAPPING_MID_APP_END: return Mapping::kMidAppMemEnd;
506 case MAPPING_HI_APP_BEG: return Mapping::kHiAppMemBeg;
507 case MAPPING_HI_APP_END: return Mapping::kHiAppMemEnd;
508 case MAPPING_HEAP_BEG: return Mapping::kHeapMemBeg;
509 case MAPPING_HEAP_END: return Mapping::kHeapMemEnd;
510 case MAPPING_VDSO_BEG: return Mapping::kVdsoBeg;
512 case MAPPING_APP_BEG: return Mapping::kAppMemBeg;
513 case MAPPING_APP_END: return Mapping::kAppMemEnd;
515 case MAPPING_SHADOW_BEG: return Mapping::kShadowBeg;
516 case MAPPING_SHADOW_END: return Mapping::kShadowEnd;
517 case MAPPING_META_SHADOW_BEG: return Mapping::kMetaShadowBeg;
518 case MAPPING_META_SHADOW_END: return Mapping::kMetaShadowEnd;
519 case MAPPING_TRACE_BEG: return Mapping::kTraceMemBeg;
520 case MAPPING_TRACE_END: return Mapping::kTraceMemEnd;
525 uptr MappingArchImpl(void) {
526 #if defined(__aarch64__) && !defined(__APPLE__)
528 case 39: return MappingImpl<Mapping39, Type>();
529 case 42: return MappingImpl<Mapping42, Type>();
530 case 48: return MappingImpl<Mapping48, Type>();
534 #elif defined(__powerpc64__)
537 case 44: return MappingImpl<Mapping44, Type>();
539 case 46: return MappingImpl<Mapping46, Type>();
540 case 47: return MappingImpl<Mapping47, Type>();
545 return MappingImpl<Mapping, Type>();
551 uptr LoAppMemBeg(void) {
552 return MappingArchImpl<MAPPING_LO_APP_BEG>();
555 uptr LoAppMemEnd(void) {
556 return MappingArchImpl<MAPPING_LO_APP_END>();
559 #ifdef TSAN_MID_APP_RANGE
561 uptr MidAppMemBeg(void) {
562 return MappingArchImpl<MAPPING_MID_APP_BEG>();
565 uptr MidAppMemEnd(void) {
566 return MappingArchImpl<MAPPING_MID_APP_END>();
571 uptr HeapMemBeg(void) {
572 return MappingArchImpl<MAPPING_HEAP_BEG>();
575 uptr HeapMemEnd(void) {
576 return MappingArchImpl<MAPPING_HEAP_END>();
580 uptr HiAppMemBeg(void) {
581 return MappingArchImpl<MAPPING_HI_APP_BEG>();
584 uptr HiAppMemEnd(void) {
585 return MappingArchImpl<MAPPING_HI_APP_END>();
590 return MappingArchImpl<MAPPING_VDSO_BEG>();
596 uptr AppMemBeg(void) {
597 return MappingArchImpl<MAPPING_APP_BEG>();
600 uptr AppMemEnd(void) {
601 return MappingArchImpl<MAPPING_APP_END>();
607 bool GetUserRegion(int i, uptr *start, uptr *end) {
613 *start = LoAppMemBeg();
614 *end = LoAppMemEnd();
617 *start = HiAppMemBeg();
618 *end = HiAppMemEnd();
621 *start = HeapMemBeg();
624 # ifdef TSAN_MID_APP_RANGE
626 *start = MidAppMemBeg();
627 *end = MidAppMemEnd();
632 *start = AppMemBeg();
640 uptr ShadowBeg(void) {
641 return MappingArchImpl<MAPPING_SHADOW_BEG>();
644 uptr ShadowEnd(void) {
645 return MappingArchImpl<MAPPING_SHADOW_END>();
649 uptr MetaShadowBeg(void) {
650 return MappingArchImpl<MAPPING_META_SHADOW_BEG>();
653 uptr MetaShadowEnd(void) {
654 return MappingArchImpl<MAPPING_META_SHADOW_END>();
658 uptr TraceMemBeg(void) {
659 return MappingArchImpl<MAPPING_TRACE_BEG>();
662 uptr TraceMemEnd(void) {
663 return MappingArchImpl<MAPPING_TRACE_END>();
667 template<typename Mapping>
668 bool IsAppMemImpl(uptr mem) {
670 return (mem >= Mapping::kHeapMemBeg && mem < Mapping::kHeapMemEnd) ||
671 # ifdef TSAN_MID_APP_RANGE
672 (mem >= Mapping::kMidAppMemBeg && mem < Mapping::kMidAppMemEnd) ||
674 (mem >= Mapping::kLoAppMemBeg && mem < Mapping::kLoAppMemEnd) ||
675 (mem >= Mapping::kHiAppMemBeg && mem < Mapping::kHiAppMemEnd);
677 return mem >= Mapping::kAppMemBeg && mem < Mapping::kAppMemEnd;
682 bool IsAppMem(uptr mem) {
683 #if defined(__aarch64__) && !defined(__APPLE__)
685 case 39: return IsAppMemImpl<Mapping39>(mem);
686 case 42: return IsAppMemImpl<Mapping42>(mem);
687 case 48: return IsAppMemImpl<Mapping48>(mem);
691 #elif defined(__powerpc64__)
694 case 44: return IsAppMemImpl<Mapping44>(mem);
696 case 46: return IsAppMemImpl<Mapping46>(mem);
697 case 47: return IsAppMemImpl<Mapping47>(mem);
702 return IsAppMemImpl<Mapping>(mem);
707 template<typename Mapping>
708 bool IsShadowMemImpl(uptr mem) {
709 return mem >= Mapping::kShadowBeg && mem <= Mapping::kShadowEnd;
713 bool IsShadowMem(uptr mem) {
714 #if defined(__aarch64__) && !defined(__APPLE__)
716 case 39: return IsShadowMemImpl<Mapping39>(mem);
717 case 42: return IsShadowMemImpl<Mapping42>(mem);
718 case 48: return IsShadowMemImpl<Mapping48>(mem);
722 #elif defined(__powerpc64__)
725 case 44: return IsShadowMemImpl<Mapping44>(mem);
727 case 46: return IsShadowMemImpl<Mapping46>(mem);
728 case 47: return IsShadowMemImpl<Mapping47>(mem);
733 return IsShadowMemImpl<Mapping>(mem);
738 template<typename Mapping>
739 bool IsMetaMemImpl(uptr mem) {
740 return mem >= Mapping::kMetaShadowBeg && mem <= Mapping::kMetaShadowEnd;
744 bool IsMetaMem(uptr mem) {
745 #if defined(__aarch64__) && !defined(__APPLE__)
747 case 39: return IsMetaMemImpl<Mapping39>(mem);
748 case 42: return IsMetaMemImpl<Mapping42>(mem);
749 case 48: return IsMetaMemImpl<Mapping48>(mem);
753 #elif defined(__powerpc64__)
756 case 44: return IsMetaMemImpl<Mapping44>(mem);
758 case 46: return IsMetaMemImpl<Mapping46>(mem);
759 case 47: return IsMetaMemImpl<Mapping47>(mem);
764 return IsMetaMemImpl<Mapping>(mem);
769 template<typename Mapping>
770 uptr MemToShadowImpl(uptr x) {
773 return (((x) & ~(Mapping::kAppMemMsk | (kShadowCell - 1)))
774 ^ Mapping::kAppMemXor) * kShadowCnt;
776 # ifndef SANITIZER_WINDOWS
777 return ((x & ~(kShadowCell - 1)) * kShadowCnt) | Mapping::kShadowBeg;
779 return ((x & ~(kShadowCell - 1)) * kShadowCnt) + Mapping::kShadowBeg;
785 uptr MemToShadow(uptr x) {
786 #if defined(__aarch64__) && !defined(__APPLE__)
788 case 39: return MemToShadowImpl<Mapping39>(x);
789 case 42: return MemToShadowImpl<Mapping42>(x);
790 case 48: return MemToShadowImpl<Mapping48>(x);
794 #elif defined(__powerpc64__)
797 case 44: return MemToShadowImpl<Mapping44>(x);
799 case 46: return MemToShadowImpl<Mapping46>(x);
800 case 47: return MemToShadowImpl<Mapping47>(x);
805 return MemToShadowImpl<Mapping>(x);
810 template<typename Mapping>
811 u32 *MemToMetaImpl(uptr x) {
814 return (u32*)(((((x) & ~(Mapping::kAppMemMsk | (kMetaShadowCell - 1)))) /
815 kMetaShadowCell * kMetaShadowSize) | Mapping::kMetaShadowBeg);
817 # ifndef SANITIZER_WINDOWS
818 return (u32*)(((x & ~(kMetaShadowCell - 1)) / \
819 kMetaShadowCell * kMetaShadowSize) | Mapping::kMetaShadowBeg);
821 return (u32*)(((x & ~(kMetaShadowCell - 1)) / \
822 kMetaShadowCell * kMetaShadowSize) + Mapping::kMetaShadowBeg);
828 u32 *MemToMeta(uptr x) {
829 #if defined(__aarch64__) && !defined(__APPLE__)
831 case 39: return MemToMetaImpl<Mapping39>(x);
832 case 42: return MemToMetaImpl<Mapping42>(x);
833 case 48: return MemToMetaImpl<Mapping48>(x);
837 #elif defined(__powerpc64__)
840 case 44: return MemToMetaImpl<Mapping44>(x);
842 case 46: return MemToMetaImpl<Mapping46>(x);
843 case 47: return MemToMetaImpl<Mapping47>(x);
848 return MemToMetaImpl<Mapping>(x);
853 template<typename Mapping>
854 uptr ShadowToMemImpl(uptr s) {
855 DCHECK(IsShadowMem(s));
857 // The shadow mapping is non-linear and we've lost some bits, so we don't have
858 // an easy way to restore the original app address. But the mapping is a
859 // bijection, so we try to restore the address as belonging to low/mid/high
860 // range consecutively and see if shadow->app->shadow mapping gives us the
862 uptr p = (s / kShadowCnt) ^ Mapping::kAppMemXor;
863 if (p >= Mapping::kLoAppMemBeg && p < Mapping::kLoAppMemEnd &&
866 # ifdef TSAN_MID_APP_RANGE
867 p = ((s / kShadowCnt) ^ Mapping::kAppMemXor) +
868 (Mapping::kMidAppMemBeg & Mapping::kAppMemMsk);
869 if (p >= Mapping::kMidAppMemBeg && p < Mapping::kMidAppMemEnd &&
873 return ((s / kShadowCnt) ^ Mapping::kAppMemXor) | Mapping::kAppMemMsk;
874 #else // #if !SANITIZER_GO
875 # ifndef SANITIZER_WINDOWS
876 return (s & ~Mapping::kShadowBeg) / kShadowCnt;
878 return (s - Mapping::kShadowBeg) / kShadowCnt;
879 # endif // SANITIZER_WINDOWS
884 uptr ShadowToMem(uptr s) {
885 #if defined(__aarch64__) && !defined(__APPLE__)
887 case 39: return ShadowToMemImpl<Mapping39>(s);
888 case 42: return ShadowToMemImpl<Mapping42>(s);
889 case 48: return ShadowToMemImpl<Mapping48>(s);
893 #elif defined(__powerpc64__)
896 case 44: return ShadowToMemImpl<Mapping44>(s);
898 case 46: return ShadowToMemImpl<Mapping46>(s);
899 case 47: return ShadowToMemImpl<Mapping47>(s);
904 return ShadowToMemImpl<Mapping>(s);
910 // The additional page is to catch shadow stack overflow as paging fault.
911 // Windows wants 64K alignment for mmaps.
912 const uptr kTotalTraceSize = (kTraceSize * sizeof(Event) + sizeof(Trace)
913 + (64 << 10) + (64 << 10) - 1) & ~((64 << 10) - 1);
915 template<typename Mapping>
916 uptr GetThreadTraceImpl(int tid) {
917 uptr p = Mapping::kTraceMemBeg + (uptr)tid * kTotalTraceSize;
918 DCHECK_LT(p, Mapping::kTraceMemEnd);
923 uptr GetThreadTrace(int tid) {
924 #if defined(__aarch64__) && !defined(__APPLE__)
926 case 39: return GetThreadTraceImpl<Mapping39>(tid);
927 case 42: return GetThreadTraceImpl<Mapping42>(tid);
928 case 48: return GetThreadTraceImpl<Mapping48>(tid);
932 #elif defined(__powerpc64__)
935 case 44: return GetThreadTraceImpl<Mapping44>(tid);
937 case 46: return GetThreadTraceImpl<Mapping46>(tid);
938 case 47: return GetThreadTraceImpl<Mapping47>(tid);
943 return GetThreadTraceImpl<Mapping>(tid);
948 template<typename Mapping>
949 uptr GetThreadTraceHeaderImpl(int tid) {
950 uptr p = Mapping::kTraceMemBeg + (uptr)tid * kTotalTraceSize
951 + kTraceSize * sizeof(Event);
952 DCHECK_LT(p, Mapping::kTraceMemEnd);
957 uptr GetThreadTraceHeader(int tid) {
958 #if defined(__aarch64__) && !defined(__APPLE__)
960 case 39: return GetThreadTraceHeaderImpl<Mapping39>(tid);
961 case 42: return GetThreadTraceHeaderImpl<Mapping42>(tid);
962 case 48: return GetThreadTraceHeaderImpl<Mapping48>(tid);
966 #elif defined(__powerpc64__)
969 case 44: return GetThreadTraceHeaderImpl<Mapping44>(tid);
971 case 46: return GetThreadTraceHeaderImpl<Mapping46>(tid);
972 case 47: return GetThreadTraceHeaderImpl<Mapping47>(tid);
977 return GetThreadTraceHeaderImpl<Mapping>(tid);
981 void InitializePlatform();
982 void InitializePlatformEarly();
983 void CheckAndProtect();
984 void InitializeShadowMemoryPlatform();
985 void FlushShadowMemory();
986 void WriteMemoryProfile(char *buf, uptr buf_size, uptr nthread, uptr nlive);
987 int ExtractResolvFDs(void *state, int *fds, int nfd);
988 int ExtractRecvmsgFDs(void *msg, int *fds, int nfd);
989 void ImitateTlsWrite(ThreadState *thr, uptr tls_addr, uptr tls_size);
991 int call_pthread_cancel_with_cleanup(int(*fn)(void *c, void *m,
992 void *abstime), void *c, void *m, void *abstime,
993 void(*cleanup)(void *arg), void *arg);
995 void DestroyThreadState();
997 } // namespace __tsan
999 #endif // TSAN_PLATFORM_H