]> git.proxmox.com Git - rustc.git/blame - src/compiler-rt/lib/tsan/rtl/tsan_platform.h
projects / rustc.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
New upstream version 1.12.0+dfsg1
[rustc.git] / src / compiler-rt / lib / tsan / rtl / tsan_platform.h
CommitLineData
1a4d82fc
JJ		 1//===-- tsan_platform.h -----------------------------------------*- C++ -*-===//
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 a part of ThreadSanitizer (TSan), a race detector.
11//
12// Platform-specific code.
13//===----------------------------------------------------------------------===//
14
92a42be0
SL		 15#ifndef TSAN_PLATFORM_H
16#define TSAN_PLATFORM_H
17
18#if !defined(__LP64__) && !defined(_WIN64)
19# error "Only 64-bit is supported"
20#endif
21
22#include "tsan_defs.h"
23#include "tsan_trace.h"
24
25namespace __tsan {
26
27#if !defined(SANITIZER_GO)
28
29#if defined(__x86_64__)
1a4d82fc 30/*
92a42be0
SL		 31C/C++ on linux/x86_64 and freebsd/x86_64
320000 0000 1000 - 0100 0000 0000: main binary and/or MAP_32BIT mappings
330100 0000 0000 - 0200 0000 0000: -
340200 0000 0000 - 1000 0000 0000: shadow
351000 0000 0000 - 3000 0000 0000: -
363000 0000 0000 - 4000 0000 0000: metainfo (memory blocks and sync objects)
374000 0000 0000 - 6000 0000 0000: -
1a4d82fc
JJ		 386000 0000 0000 - 6200 0000 0000: traces
396200 0000 0000 - 7d00 0000 0000: -
407d00 0000 0000 - 7e00 0000 0000: heap
92a42be0
SL		 417e00 0000 0000 - 7e80 0000 0000: -
427e80 0000 0000 - 8000 0000 0000: modules and main thread stack
43*/
3157f602
XL		 44struct Mapping {
45 static const uptr kMetaShadowBeg = 0x300000000000ull;
46 static const uptr kMetaShadowEnd = 0x400000000000ull;
47 static const uptr kTraceMemBeg = 0x600000000000ull;
48 static const uptr kTraceMemEnd = 0x620000000000ull;
49 static const uptr kShadowBeg = 0x020000000000ull;
50 static const uptr kShadowEnd = 0x100000000000ull;
51 static const uptr kHeapMemBeg = 0x7d0000000000ull;
52 static const uptr kHeapMemEnd = 0x7e0000000000ull;
53 static const uptr kLoAppMemBeg = 0x000000001000ull;
54 static const uptr kLoAppMemEnd = 0x010000000000ull;
55 static const uptr kHiAppMemBeg = 0x7e8000000000ull;
56 static const uptr kHiAppMemEnd = 0x800000000000ull;
57 static const uptr kAppMemMsk = 0x7c0000000000ull;
58 static const uptr kAppMemXor = 0x020000000000ull;
59 static const uptr kVdsoBeg = 0xf000000000000000ull;
60};
92a42be0
SL		 61#elif defined(__mips64)
62/*
63C/C++ on linux/mips64
640100 0000 00 - 0200 0000 00: main binary
650200 0000 00 - 1400 0000 00: -
661400 0000 00 - 2400 0000 00: shadow
672400 0000 00 - 3000 0000 00: -
683000 0000 00 - 4000 0000 00: metainfo (memory blocks and sync objects)
694000 0000 00 - 6000 0000 00: -
706000 0000 00 - 6200 0000 00: traces
716200 0000 00 - fe00 0000 00: -
72fe00 0000 00 - ff00 0000 00: heap
73ff00 0000 00 - ff80 0000 00: -
74ff80 0000 00 - ffff ffff ff: modules and main thread stack
75*/
3157f602
XL		 76struct Mapping {
77 static const uptr kMetaShadowBeg = 0x3000000000ull;
78 static const uptr kMetaShadowEnd = 0x4000000000ull;
79 static const uptr kTraceMemBeg = 0x6000000000ull;
80 static const uptr kTraceMemEnd = 0x6200000000ull;
81 static const uptr kShadowBeg = 0x1400000000ull;
82 static const uptr kShadowEnd = 0x2400000000ull;
83 static const uptr kHeapMemBeg = 0xfe00000000ull;
84 static const uptr kHeapMemEnd = 0xff00000000ull;
85 static const uptr kLoAppMemBeg = 0x0100000000ull;
86 static const uptr kLoAppMemEnd = 0x0200000000ull;
87 static const uptr kHiAppMemBeg = 0xff80000000ull;
88 static const uptr kHiAppMemEnd = 0xffffffffffull;
89 static const uptr kAppMemMsk = 0xfc00000000ull;
90 static const uptr kAppMemXor = 0x0400000000ull;
91 static const uptr kVdsoBeg = 0xfffff00000ull;
92};
92a42be0 93#elif defined(__aarch64__)
3157f602
XL		 94// AArch64 supports multiple VMA which leads to multiple address transformation
95// functions. To support these multiple VMAS transformations and mappings TSAN
96// runtime for AArch64 uses an external memory read (vmaSize) to select which
97// mapping to use. Although slower, it make a same instrumented binary run on
98// multiple kernels.
99
92a42be0
SL		 100/*
101C/C++ on linux/aarch64 (39-bit VMA)
3157f602
XL		 1020000 0010 00 - 0100 0000 00: main binary
1030100 0000 00 - 0800 0000 00: -
1040800 0000 00 - 2000 0000 00: shadow memory
1052000 0000 00 - 3100 0000 00: -
1063100 0000 00 - 3400 0000 00: metainfo
1073400 0000 00 - 5500 0000 00: -
1085500 0000 00 - 5600 0000 00: main binary (PIE)
1095600 0000 00 - 6000 0000 00: -
92a42be0
SL		 1106000 0000 00 - 6200 0000 00: traces
1116200 0000 00 - 7d00 0000 00: -
3157f602
XL		 1127c00 0000 00 - 7d00 0000 00: heap
1137d00 0000 00 - 7fff ffff ff: modules and main thread stack
92a42be0 114*/
3157f602
XL		 115struct Mapping39 {
116 static const uptr kLoAppMemBeg = 0x0000001000ull;
117 static const uptr kLoAppMemEnd = 0x0100000000ull;
118 static const uptr kShadowBeg = 0x0800000000ull;
119 static const uptr kShadowEnd = 0x2000000000ull;
120 static const uptr kMetaShadowBeg = 0x3100000000ull;
121 static const uptr kMetaShadowEnd = 0x3400000000ull;
122 static const uptr kMidAppMemBeg = 0x5500000000ull;
123 static const uptr kMidAppMemEnd = 0x5600000000ull;
124 static const uptr kMidShadowOff = 0x5000000000ull;
125 static const uptr kTraceMemBeg = 0x6000000000ull;
126 static const uptr kTraceMemEnd = 0x6200000000ull;
127 static const uptr kHeapMemBeg = 0x7c00000000ull;
128 static const uptr kHeapMemEnd = 0x7d00000000ull;
129 static const uptr kHiAppMemBeg = 0x7e00000000ull;
130 static const uptr kHiAppMemEnd = 0x7fffffffffull;
131 static const uptr kAppMemMsk = 0x7800000000ull;
132 static const uptr kAppMemXor = 0x0200000000ull;
133 static const uptr kVdsoBeg = 0x7f00000000ull;
134};
135
92a42be0
SL		 136/*
137C/C++ on linux/aarch64 (42-bit VMA)
3157f602 13800000 0010 00 - 01000 0000 00: main binary
92a42be0
SL		 13901000 0000 00 - 10000 0000 00: -
14010000 0000 00 - 20000 0000 00: shadow memory
14120000 0000 00 - 26000 0000 00: -
14226000 0000 00 - 28000 0000 00: metainfo
3157f602
XL		 14328000 0000 00 - 2aa00 0000 00: -
1442aa00 0000 00 - 2ab00 0000 00: main binary (PIE)
1452ab00 0000 00 - 36200 0000 00: -
92a42be0
SL		 14636200 0000 00 - 36240 0000 00: traces
14736240 0000 00 - 3e000 0000 00: -
1483e000 0000 00 - 3f000 0000 00: heap
3157f602 1493f000 0000 00 - 3ffff ffff ff: modules and main thread stack
92a42be0 150*/
3157f602
XL		 151struct Mapping42 {
152 static const uptr kLoAppMemBeg = 0x00000001000ull;
153 static const uptr kLoAppMemEnd = 0x01000000000ull;
154 static const uptr kShadowBeg = 0x10000000000ull;
155 static const uptr kShadowEnd = 0x20000000000ull;
156 static const uptr kMetaShadowBeg = 0x26000000000ull;
157 static const uptr kMetaShadowEnd = 0x28000000000ull;
158 static const uptr kMidAppMemBeg = 0x2aa00000000ull;
159 static const uptr kMidAppMemEnd = 0x2ab00000000ull;
160 static const uptr kMidShadowOff = 0x28000000000ull;
161 static const uptr kTraceMemBeg = 0x36200000000ull;
162 static const uptr kTraceMemEnd = 0x36400000000ull;
163 static const uptr kHeapMemBeg = 0x3e000000000ull;
164 static const uptr kHeapMemEnd = 0x3f000000000ull;
165 static const uptr kHiAppMemBeg = 0x3f000000000ull;
166 static const uptr kHiAppMemEnd = 0x3ffffffffffull;
167 static const uptr kAppMemMsk = 0x3c000000000ull;
168 static const uptr kAppMemXor = 0x04000000000ull;
169 static const uptr kVdsoBeg = 0x37f00000000ull;
170};
92a42be0 171
3157f602
XL		 172// Indicates the runtime will define the memory regions at runtime.
173#define TSAN_RUNTIME_VMA 1
174// Indicates that mapping defines a mid range memory segment.
175#define TSAN_MID_APP_RANGE 1
176#elif defined(__powerpc64__)
177// PPC64 supports multiple VMA which leads to multiple address transformation
178// functions. To support these multiple VMAS transformations and mappings TSAN
179// runtime for PPC64 uses an external memory read (vmaSize) to select which
180// mapping to use. Although slower, it make a same instrumented binary run on
181// multiple kernels.
92a42be0 182
3157f602
XL		 183/*
184C/C++ on linux/powerpc64 (44-bit VMA)
1850000 0000 0100 - 0001 0000 0000: main binary
1860001 0000 0000 - 0001 0000 0000: -
1870001 0000 0000 - 0b00 0000 0000: shadow
1880b00 0000 0000 - 0b00 0000 0000: -
1890b00 0000 0000 - 0d00 0000 0000: metainfo (memory blocks and sync objects)
1900d00 0000 0000 - 0d00 0000 0000: -
1910d00 0000 0000 - 0f00 0000 0000: traces
1920f00 0000 0000 - 0f00 0000 0000: -
1930f00 0000 0000 - 0f50 0000 0000: heap
1940f50 0000 0000 - 0f60 0000 0000: -
1950f60 0000 0000 - 1000 0000 0000: modules and main thread stack
196*/
197struct Mapping44 {
198 static const uptr kMetaShadowBeg = 0x0b0000000000ull;
199 static const uptr kMetaShadowEnd = 0x0d0000000000ull;
200 static const uptr kTraceMemBeg = 0x0d0000000000ull;
201 static const uptr kTraceMemEnd = 0x0f0000000000ull;
202 static const uptr kShadowBeg = 0x000100000000ull;
203 static const uptr kShadowEnd = 0x0b0000000000ull;
204 static const uptr kLoAppMemBeg = 0x000000000100ull;
205 static const uptr kLoAppMemEnd = 0x000100000000ull;
206 static const uptr kHeapMemBeg = 0x0f0000000000ull;
207 static const uptr kHeapMemEnd = 0x0f5000000000ull;
208 static const uptr kHiAppMemBeg = 0x0f6000000000ull;
209 static const uptr kHiAppMemEnd = 0x100000000000ull; // 44 bits
210 static const uptr kAppMemMsk = 0x0f0000000000ull;
211 static const uptr kAppMemXor = 0x002100000000ull;
212 static const uptr kVdsoBeg = 0x3c0000000000000ull;
213};
92a42be0 214
3157f602
XL		 215/*
216C/C++ on linux/powerpc64 (46-bit VMA)
2170000 0000 1000 - 0100 0000 0000: main binary
2180100 0000 0000 - 0200 0000 0000: -
2190100 0000 0000 - 1000 0000 0000: shadow
2201000 0000 0000 - 1000 0000 0000: -
2211000 0000 0000 - 2000 0000 0000: metainfo (memory blocks and sync objects)
2222000 0000 0000 - 2000 0000 0000: -
2232000 0000 0000 - 2200 0000 0000: traces
2242200 0000 0000 - 3d00 0000 0000: -
2253d00 0000 0000 - 3e00 0000 0000: heap
2263e00 0000 0000 - 3e80 0000 0000: -
2273e80 0000 0000 - 4000 0000 0000: modules and main thread stack
228*/
229struct Mapping46 {
230 static const uptr kMetaShadowBeg = 0x100000000000ull;
231 static const uptr kMetaShadowEnd = 0x200000000000ull;
232 static const uptr kTraceMemBeg = 0x200000000000ull;
233 static const uptr kTraceMemEnd = 0x220000000000ull;
234 static const uptr kShadowBeg = 0x010000000000ull;
235 static const uptr kShadowEnd = 0x100000000000ull;
236 static const uptr kHeapMemBeg = 0x3d0000000000ull;
237 static const uptr kHeapMemEnd = 0x3e0000000000ull;
238 static const uptr kLoAppMemBeg = 0x000000001000ull;
239 static const uptr kLoAppMemEnd = 0x010000000000ull;
240 static const uptr kHiAppMemBeg = 0x3e8000000000ull;
241 static const uptr kHiAppMemEnd = 0x400000000000ull; // 46 bits
242 static const uptr kAppMemMsk = 0x3c0000000000ull;
243 static const uptr kAppMemXor = 0x020000000000ull;
244 static const uptr kVdsoBeg = 0x7800000000000000ull;
92a42be0
SL		 245};
246
3157f602
XL		 247// Indicates the runtime will define the memory regions at runtime.
248#define TSAN_RUNTIME_VMA 1
249#endif
250
92a42be0
SL		 251#elif defined(SANITIZER_GO) && !SANITIZER_WINDOWS
252
253/* Go on linux, darwin and freebsd
2540000 0000 1000 - 0000 1000 0000: executable
2550000 1000 0000 - 00c0 0000 0000: -
1a4d82fc 25600c0 0000 0000 - 00e0 0000 0000: heap
92a42be0
SL		 25700e0 0000 0000 - 2000 0000 0000: -
2582000 0000 0000 - 2380 0000 0000: shadow
2592380 0000 0000 - 3000 0000 0000: -
2603000 0000 0000 - 4000 0000 0000: metainfo (memory blocks and sync objects)
2614000 0000 0000 - 6000 0000 0000: -
2626000 0000 0000 - 6200 0000 0000: traces
2636200 0000 0000 - 8000 0000 0000: -
1a4d82fc
JJ		 264*/
265
3157f602
XL		 266struct Mapping {
267 static const uptr kMetaShadowBeg = 0x300000000000ull;
268 static const uptr kMetaShadowEnd = 0x400000000000ull;
269 static const uptr kTraceMemBeg = 0x600000000000ull;
270 static const uptr kTraceMemEnd = 0x620000000000ull;
271 static const uptr kShadowBeg = 0x200000000000ull;
272 static const uptr kShadowEnd = 0x238000000000ull;
273 static const uptr kAppMemBeg = 0x000000001000ull;
274 static const uptr kAppMemEnd = 0x00e000000000ull;
275};
276
277#elif defined(SANITIZER_GO) && SANITIZER_WINDOWS
278
279/* Go on windows
2800000 0000 1000 - 0000 1000 0000: executable
2810000 1000 0000 - 00f8 0000 0000: -
28200c0 0000 0000 - 00e0 0000 0000: heap
28300e0 0000 0000 - 0100 0000 0000: -
2840100 0000 0000 - 0500 0000 0000: shadow
2850500 0000 0000 - 0560 0000 0000: -
2860560 0000 0000 - 0760 0000 0000: traces
2870760 0000 0000 - 07d0 0000 0000: metainfo (memory blocks and sync objects)
28807d0 0000 0000 - 8000 0000 0000: -
289*/
290
291struct Mapping {
292 static const uptr kMetaShadowBeg = 0x076000000000ull;
293 static const uptr kMetaShadowEnd = 0x07d000000000ull;
294 static const uptr kTraceMemBeg = 0x056000000000ull;
295 static const uptr kTraceMemEnd = 0x076000000000ull;
296 static const uptr kShadowBeg = 0x010000000000ull;
297 static const uptr kShadowEnd = 0x050000000000ull;
298 static const uptr kAppMemBeg = 0x000000001000ull;
299 static const uptr kAppMemEnd = 0x00e000000000ull;
5bcae85e 300};
3157f602
XL		 301
302#else
303# error "Unknown platform"
304#endif
305
306
307#ifdef TSAN_RUNTIME_VMA
308extern uptr vmaSize;
309#endif
310
311
312enum MappingType {
313 MAPPING_LO_APP_BEG,
314 MAPPING_LO_APP_END,
315 MAPPING_HI_APP_BEG,
316 MAPPING_HI_APP_END,
317#ifdef TSAN_MID_APP_RANGE
318 MAPPING_MID_APP_BEG,
319 MAPPING_MID_APP_END,
320#endif
321 MAPPING_HEAP_BEG,
322 MAPPING_HEAP_END,
323 MAPPING_APP_BEG,
324 MAPPING_APP_END,
325 MAPPING_SHADOW_BEG,
326 MAPPING_SHADOW_END,
327 MAPPING_META_SHADOW_BEG,
328 MAPPING_META_SHADOW_END,
329 MAPPING_TRACE_BEG,
330 MAPPING_TRACE_END,
331 MAPPING_VDSO_BEG,
332};
333
334template<typename Mapping, int Type>
335uptr MappingImpl(void) {
336 switch (Type) {
337#ifndef SANITIZER_GO
338 case MAPPING_LO_APP_BEG: return Mapping::kLoAppMemBeg;
339 case MAPPING_LO_APP_END: return Mapping::kLoAppMemEnd;
340# ifdef TSAN_MID_APP_RANGE
341 case MAPPING_MID_APP_BEG: return Mapping::kMidAppMemBeg;
342 case MAPPING_MID_APP_END: return Mapping::kMidAppMemEnd;
343# endif
344 case MAPPING_HI_APP_BEG: return Mapping::kHiAppMemBeg;
345 case MAPPING_HI_APP_END: return Mapping::kHiAppMemEnd;
346 case MAPPING_HEAP_BEG: return Mapping::kHeapMemBeg;
347 case MAPPING_HEAP_END: return Mapping::kHeapMemEnd;
348 case MAPPING_VDSO_BEG: return Mapping::kVdsoBeg;
349#else
350 case MAPPING_APP_BEG: return Mapping::kAppMemBeg;
351 case MAPPING_APP_END: return Mapping::kAppMemEnd;
352#endif
353 case MAPPING_SHADOW_BEG: return Mapping::kShadowBeg;
354 case MAPPING_SHADOW_END: return Mapping::kShadowEnd;
355 case MAPPING_META_SHADOW_BEG: return Mapping::kMetaShadowBeg;
356 case MAPPING_META_SHADOW_END: return Mapping::kMetaShadowEnd;
357 case MAPPING_TRACE_BEG: return Mapping::kTraceMemBeg;
358 case MAPPING_TRACE_END: return Mapping::kTraceMemEnd;
359 }
360}
361
362template<int Type>
363uptr MappingArchImpl(void) {
364#ifdef __aarch64__
365 if (vmaSize == 39)
366 return MappingImpl<Mapping39, Type>();
367 else
368 return MappingImpl<Mapping42, Type>();
369 DCHECK(0);
370#elif defined(__powerpc64__)
371 if (vmaSize == 44)
372 return MappingImpl<Mapping44, Type>();
373 else
374 return MappingImpl<Mapping46, Type>();
375 DCHECK(0);
376#else
377 return MappingImpl<Mapping, Type>();
378#endif
379}
1a4d82fc 380
3157f602 381#ifndef SANITIZER_GO
92a42be0 382ALWAYS_INLINE
3157f602
XL		 383uptr LoAppMemBeg(void) {
384 return MappingArchImpl<MAPPING_LO_APP_BEG>();
385}
386ALWAYS_INLINE
387uptr LoAppMemEnd(void) {
388 return MappingArchImpl<MAPPING_LO_APP_END>();
92a42be0 389}
1a4d82fc 390
3157f602 391#ifdef TSAN_MID_APP_RANGE
92a42be0 392ALWAYS_INLINE
3157f602
XL		 393uptr MidAppMemBeg(void) {
394 return MappingArchImpl<MAPPING_MID_APP_BEG>();
92a42be0 395}
3157f602
XL		 396ALWAYS_INLINE
397uptr MidAppMemEnd(void) {
398 return MappingArchImpl<MAPPING_MID_APP_END>();
399}
400#endif
1a4d82fc 401
92a42be0 402ALWAYS_INLINE
3157f602
XL		 403uptr HeapMemBeg(void) {
404 return MappingArchImpl<MAPPING_HEAP_BEG>();
405}
406ALWAYS_INLINE
407uptr HeapMemEnd(void) {
408 return MappingArchImpl<MAPPING_HEAP_END>();
92a42be0 409}
1a4d82fc 410
92a42be0 411ALWAYS_INLINE
3157f602
XL		 412uptr HiAppMemBeg(void) {
413 return MappingArchImpl<MAPPING_HI_APP_BEG>();
414}
415ALWAYS_INLINE
416uptr HiAppMemEnd(void) {
417 return MappingArchImpl<MAPPING_HI_APP_END>();
92a42be0 418}
1a4d82fc 419
92a42be0 420ALWAYS_INLINE
3157f602
XL		 421uptr VdsoBeg(void) {
422 return MappingArchImpl<MAPPING_VDSO_BEG>();
92a42be0 423}
1a4d82fc 424
3157f602
XL		 425#else
426
92a42be0 427ALWAYS_INLINE
3157f602
XL		 428uptr AppMemBeg(void) {
429 return MappingArchImpl<MAPPING_APP_BEG>();
430}
431ALWAYS_INLINE
432uptr AppMemEnd(void) {
433 return MappingArchImpl<MAPPING_APP_END>();
92a42be0 434}
1a4d82fc 435
3157f602 436#endif
1a4d82fc 437
3157f602
XL		 438static inline
439bool GetUserRegion(int i, uptr *start, uptr *end) {
440 switch (i) {
441 default:
442 return false;
443#ifndef SANITIZER_GO
444 case 0:
445 *start = LoAppMemBeg();
446 *end = LoAppMemEnd();
447 return true;
448 case 1:
449 *start = HiAppMemBeg();
450 *end = HiAppMemEnd();
451 return true;
452 case 2:
453 *start = HeapMemBeg();
454 *end = HeapMemEnd();
455 return true;
456# ifdef TSAN_MID_APP_RANGE
457 case 3:
458 *start = MidAppMemBeg();
459 *end = MidAppMemEnd();
460 return true;
461# endif
462#else
463 case 0:
464 *start = AppMemBeg();
465 *end = AppMemEnd();
466 return true;
467#endif
468 }
469}
92a42be0 470
3157f602
XL		 471ALWAYS_INLINE
472uptr ShadowBeg(void) {
473 return MappingArchImpl<MAPPING_SHADOW_BEG>();
474}
475ALWAYS_INLINE
476uptr ShadowEnd(void) {
477 return MappingArchImpl<MAPPING_SHADOW_END>();
478}
92a42be0 479
3157f602
XL		 480ALWAYS_INLINE
481uptr MetaShadowBeg(void) {
482 return MappingArchImpl<MAPPING_META_SHADOW_BEG>();
483}
484ALWAYS_INLINE
485uptr MetaShadowEnd(void) {
486 return MappingArchImpl<MAPPING_META_SHADOW_END>();
487}
488
489ALWAYS_INLINE
490uptr TraceMemBeg(void) {
491 return MappingArchImpl<MAPPING_TRACE_BEG>();
492}
493ALWAYS_INLINE
494uptr TraceMemEnd(void) {
495 return MappingArchImpl<MAPPING_TRACE_END>();
496}
497
498
499template<typename Mapping>
500bool IsAppMemImpl(uptr mem) {
501#ifndef SANITIZER_GO
502 return (mem >= Mapping::kHeapMemBeg && mem < Mapping::kHeapMemEnd) ||
503# ifdef TSAN_MID_APP_RANGE
504 (mem >= Mapping::kMidAppMemBeg && mem < Mapping::kMidAppMemEnd) ||
505# endif
506 (mem >= Mapping::kLoAppMemBeg && mem < Mapping::kLoAppMemEnd) ||
507 (mem >= Mapping::kHiAppMemBeg && mem < Mapping::kHiAppMemEnd);
508#else
509 return mem >= Mapping::kAppMemBeg && mem < Mapping::kAppMemEnd;
510#endif
511}
92a42be0
SL		 512
513ALWAYS_INLINE
514bool IsAppMem(uptr mem) {
3157f602
XL		 515#ifdef __aarch64__
516 if (vmaSize == 39)
517 return IsAppMemImpl<Mapping39>(mem);
518 else
519 return IsAppMemImpl<Mapping42>(mem);
520 DCHECK(0);
521#elif defined(__powerpc64__)
522 if (vmaSize == 44)
523 return IsAppMemImpl<Mapping44>(mem);
524 else
525 return IsAppMemImpl<Mapping46>(mem);
526 DCHECK(0);
527#else
528 return IsAppMemImpl<Mapping>(mem);
529#endif
530}
531
532
533template<typename Mapping>
534bool IsShadowMemImpl(uptr mem) {
535 return mem >= Mapping::kShadowBeg && mem <= Mapping::kShadowEnd;
1a4d82fc
JJ		 536}
537
92a42be0
SL		 538ALWAYS_INLINE
539bool IsShadowMem(uptr mem) {
3157f602
XL		 540#ifdef __aarch64__
541 if (vmaSize == 39)
542 return IsShadowMemImpl<Mapping39>(mem);
543 else
544 return IsShadowMemImpl<Mapping42>(mem);
545 DCHECK(0);
546#elif defined(__powerpc64__)
547 if (vmaSize == 44)
548 return IsShadowMemImpl<Mapping44>(mem);
549 else
550 return IsShadowMemImpl<Mapping46>(mem);
551 DCHECK(0);
552#else
553 return IsShadowMemImpl<Mapping>(mem);
554#endif
555}
556
557
558template<typename Mapping>
559bool IsMetaMemImpl(uptr mem) {
560 return mem >= Mapping::kMetaShadowBeg && mem <= Mapping::kMetaShadowEnd;
1a4d82fc
JJ		 561}
562
92a42be0
SL		 563ALWAYS_INLINE
564bool IsMetaMem(uptr mem) {
3157f602
XL		 565#ifdef __aarch64__
566 if (vmaSize == 39)
567 return IsMetaMemImpl<Mapping39>(mem);
568 else
569 return IsMetaMemImpl<Mapping42>(mem);
570 DCHECK(0);
571#elif defined(__powerpc64__)
572 if (vmaSize == 44)
573 return IsMetaMemImpl<Mapping44>(mem);
574 else
575 return IsMetaMemImpl<Mapping46>(mem);
576 DCHECK(0);
577#else
578 return IsMetaMemImpl<Mapping>(mem);
579#endif
1a4d82fc
JJ		 580}
581
3157f602
XL		 582
583template<typename Mapping>
584uptr MemToShadowImpl(uptr x) {
92a42be0 585 DCHECK(IsAppMem(x));
3157f602
XL		 586#ifndef SANITIZER_GO
587 return (((x) & ~(Mapping::kAppMemMsk | (kShadowCell - 1)))
588 ^ Mapping::kAppMemXor) * kShadowCnt;
589#else
5bcae85e 590# ifndef SANITIZER_WINDOWS
3157f602 591 return ((x & ~(kShadowCell - 1)) * kShadowCnt) | Mapping::kShadowBeg;
5bcae85e
SL		 592# else
593 return ((x & ~(kShadowCell - 1)) * kShadowCnt) + Mapping::kShadowBeg;
594# endif
3157f602 595#endif
1a4d82fc
JJ		 596}
597
92a42be0 598ALWAYS_INLINE
3157f602
XL		 599uptr MemToShadow(uptr x) {
600#ifdef __aarch64__
601 if (vmaSize == 39)
602 return MemToShadowImpl<Mapping39>(x);
603 else
604 return MemToShadowImpl<Mapping42>(x);
605 DCHECK(0);
606#elif defined(__powerpc64__)
607 if (vmaSize == 44)
608 return MemToShadowImpl<Mapping44>(x);
609 else
610 return MemToShadowImpl<Mapping46>(x);
611 DCHECK(0);
612#else
613 return MemToShadowImpl<Mapping>(x);
614#endif
615}
616
617
618template<typename Mapping>
619u32 *MemToMetaImpl(uptr x) {
92a42be0 620 DCHECK(IsAppMem(x));
3157f602
XL		 621#ifndef SANITIZER_GO
622 return (u32*)(((((x) & ~(Mapping::kAppMemMsk | (kMetaShadowCell - 1)))
623 ^ Mapping::kAppMemXor) / kMetaShadowCell * kMetaShadowSize)
624 | Mapping::kMetaShadowBeg);
625#else
92a42be0 626 return (u32*)(((x & ~(kMetaShadowCell - 1)) / \
3157f602
XL		 627 kMetaShadowCell * kMetaShadowSize) | Mapping::kMetaShadowBeg);
628#endif
92a42be0
SL		 629}
630
631ALWAYS_INLINE
3157f602
XL		 632u32 *MemToMeta(uptr x) {
633#ifdef __aarch64__
634 if (vmaSize == 39)
635 return MemToMetaImpl<Mapping39>(x);
636 else
637 return MemToMetaImpl<Mapping42>(x);
638 DCHECK(0);
639#elif defined(__powerpc64__)
640 if (vmaSize == 44)
641 return MemToMetaImpl<Mapping44>(x);
642 else
643 return MemToMetaImpl<Mapping46>(x);
644 DCHECK(0);
645#else
646 return MemToMetaImpl<Mapping>(x);
647#endif
92a42be0 648}
1a4d82fc 649
92a42be0 650
3157f602
XL		 651template<typename Mapping>
652uptr ShadowToMemImpl(uptr s) {
653 DCHECK(IsShadowMem(s));
654#ifndef SANITIZER_GO
655 if (s >= MemToShadow(Mapping::kLoAppMemBeg)
656 && s <= MemToShadow(Mapping::kLoAppMemEnd - 1))
657 return (s / kShadowCnt) ^ Mapping::kAppMemXor;
658# ifdef TSAN_MID_APP_RANGE
659 if (s >= MemToShadow(Mapping::kMidAppMemBeg)
660 && s <= MemToShadow(Mapping::kMidAppMemEnd - 1))
661 return ((s / kShadowCnt) ^ Mapping::kAppMemXor) + Mapping::kMidShadowOff;
662# endif
663 else
664 return ((s / kShadowCnt) ^ Mapping::kAppMemXor) | Mapping::kAppMemMsk;
92a42be0 665#else
3157f602
XL		 666# ifndef SANITIZER_WINDOWS
667 return (s & ~Mapping::kShadowBeg) / kShadowCnt;
668# else
3157f602
XL		 669 return (s - Mapping::kShadowBeg) / kShadowCnt;
670# endif // SANITIZER_WINDOWS
92a42be0 671#endif
3157f602
XL		 672}
673
674ALWAYS_INLINE
675uptr ShadowToMem(uptr s) {
676#ifdef __aarch64__
677 if (vmaSize == 39)
678 return ShadowToMemImpl<Mapping39>(s);
679 else
680 return ShadowToMemImpl<Mapping42>(s);
681 DCHECK(0);
682#elif defined(__powerpc64__)
683 if (vmaSize == 44)
684 return ShadowToMemImpl<Mapping44>(s);
685 else
686 return ShadowToMemImpl<Mapping46>(s);
687 DCHECK(0);
688#else
689 return ShadowToMemImpl<Mapping>(s);
690#endif
691}
692
693
1a4d82fc
JJ		 694
695// The additional page is to catch shadow stack overflow as paging fault.
696// Windows wants 64K alignment for mmaps.
697const uptr kTotalTraceSize = (kTraceSize * sizeof(Event) + sizeof(Trace)
698 + (64 << 10) + (64 << 10) - 1) & ~((64 << 10) - 1);
699
3157f602
XL		 700template<typename Mapping>
701uptr GetThreadTraceImpl(int tid) {
702 uptr p = Mapping::kTraceMemBeg + (uptr)tid * kTotalTraceSize;
703 DCHECK_LT(p, Mapping::kTraceMemEnd);
1a4d82fc
JJ		 704 return p;
705}
706
3157f602
XL		 707ALWAYS_INLINE
708uptr GetThreadTrace(int tid) {
709#ifdef __aarch64__
710 if (vmaSize == 39)
711 return GetThreadTraceImpl<Mapping39>(tid);
712 else
713 return GetThreadTraceImpl<Mapping42>(tid);
714 DCHECK(0);
715#elif defined(__powerpc64__)
716 if (vmaSize == 44)
717 return GetThreadTraceImpl<Mapping44>(tid);
718 else
719 return GetThreadTraceImpl<Mapping46>(tid);
720 DCHECK(0);
721#else
722 return GetThreadTraceImpl<Mapping>(tid);
723#endif
724}
725
726
727template<typename Mapping>
728uptr GetThreadTraceHeaderImpl(int tid) {
729 uptr p = Mapping::kTraceMemBeg + (uptr)tid * kTotalTraceSize
1a4d82fc 730 + kTraceSize * sizeof(Event);
3157f602 731 DCHECK_LT(p, Mapping::kTraceMemEnd);
1a4d82fc
JJ		 732 return p;
733}
734
3157f602
XL		 735ALWAYS_INLINE
736uptr GetThreadTraceHeader(int tid) {
737#ifdef __aarch64__
738 if (vmaSize == 39)
739 return GetThreadTraceHeaderImpl<Mapping39>(tid);
740 else
741 return GetThreadTraceHeaderImpl<Mapping42>(tid);
742 DCHECK(0);
743#elif defined(__powerpc64__)
744 if (vmaSize == 44)
745 return GetThreadTraceHeaderImpl<Mapping44>(tid);
746 else
747 return GetThreadTraceHeaderImpl<Mapping46>(tid);
748 DCHECK(0);
749#else
750 return GetThreadTraceHeaderImpl<Mapping>(tid);
751#endif
752}
753
92a42be0 754void InitializePlatform();
3157f602 755void InitializePlatformEarly();
92a42be0
SL		 756void CheckAndProtect();
757void InitializeShadowMemoryPlatform();
758void FlushShadowMemory();
759void WriteMemoryProfile(char *buf, uptr buf_size, uptr nthread, uptr nlive);
1a4d82fc
JJ		 760int ExtractResolvFDs(void *state, int *fds, int nfd);
761int ExtractRecvmsgFDs(void *msg, int *fds, int nfd);
762
763int call_pthread_cancel_with_cleanup(int(*fn)(void *c, void *m,
764 void *abstime), void *c, void *m, void *abstime,
765 void(*cleanup)(void *arg), void *arg);
766
92a42be0 767void DestroyThreadState();
1a4d82fc 768
92a42be0 769} // namespace __tsan
1a4d82fc
JJ		 770
771#endif // TSAN_PLATFORM_H
backport for Debian buster