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1 /* | 1 /* |
2 * Copyright (C) 2013 Google Inc. All rights reserved. | 2 * Copyright (C) 2013 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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31 #include "config.h" | 31 #include "config.h" |
32 #include "wtf/PartitionAlloc.h" | 32 #include "wtf/PartitionAlloc.h" |
33 | 33 |
34 #include "wtf/CryptographicallyRandomNumber.h" | 34 #include "wtf/CryptographicallyRandomNumber.h" |
35 #include "wtf/OwnArrayPtr.h" | 35 #include "wtf/OwnArrayPtr.h" |
36 #include "wtf/PageAllocator.h" | 36 #include "wtf/PageAllocator.h" |
37 #include <gtest/gtest.h> | 37 #include <gtest/gtest.h> |
38 #include <stdlib.h> | 38 #include <stdlib.h> |
39 #include <string.h> | 39 #include <string.h> |
40 | 40 |
41 #if OS(UNIX) | 41 #if OS(POSIX) |
42 #include <sys/mman.h> | 42 #include <sys/mman.h> |
43 | 43 |
44 #ifndef MAP_ANONYMOUS | 44 #ifndef MAP_ANONYMOUS |
45 #define MAP_ANONYMOUS MAP_ANON | 45 #define MAP_ANONYMOUS MAP_ANON |
46 #endif | 46 #endif |
47 #endif // OS(UNIX) | 47 #endif // OS(POSIX) |
48 | 48 |
49 #if !defined(MEMORY_TOOL_REPLACES_ALLOCATOR) | 49 #if !defined(MEMORY_TOOL_REPLACES_ALLOCATOR) |
50 | 50 |
51 namespace { | 51 namespace { |
52 | 52 |
53 static PartitionAllocator<4096> allocator; | 53 static PartitionAllocator<4096> allocator; |
54 | 54 |
55 static const int kTestAllocSize = sizeof(void*); | 55 static const int kTestAllocSize = sizeof(void*); |
56 | 56 |
57 static void RandomNumberSource(unsigned char* buf, size_t len) | 57 static void RandomNumberSource(unsigned char* buf, size_t len) |
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435 newPtr = partitionReallocGeneric(allocator.root(), ptr, PartitionAllocator<4
096>::kMaxAllocation * 2, 1); | 435 newPtr = partitionReallocGeneric(allocator.root(), ptr, PartitionAllocator<4
096>::kMaxAllocation * 2, 1); |
436 EXPECT_NE(newPtr, ptr); | 436 EXPECT_NE(newPtr, ptr); |
437 EXPECT_EQ(newPtr, origPtr); | 437 EXPECT_EQ(newPtr, origPtr); |
438 newCharPtr = static_cast<char*>(newPtr); | 438 newCharPtr = static_cast<char*>(newPtr); |
439 EXPECT_EQ(*newCharPtr, 'F'); | 439 EXPECT_EQ(*newCharPtr, 'F'); |
440 | 440 |
441 partitionFreeGeneric(allocator.root(), newPtr, 1); | 441 partitionFreeGeneric(allocator.root(), newPtr, 1); |
442 TestShutdown(); | 442 TestShutdown(); |
443 } | 443 } |
444 | 444 |
445 #if OS(UNIX) | 445 #if OS(POSIX) |
446 | 446 |
447 // Test correct handling if our mapping collides with another. | 447 // Test correct handling if our mapping collides with another. |
448 TEST(WTF_PartitionAlloc, MappingCollision) | 448 TEST(WTF_PartitionAlloc, MappingCollision) |
449 { | 449 { |
450 TestSetup(); | 450 TestSetup(); |
451 | 451 |
452 WTF::PartitionPageHeader* page1 = GetFullPage(kTestAllocSize); | 452 WTF::PartitionPageHeader* page1 = GetFullPage(kTestAllocSize); |
453 char* pageBase = reinterpret_cast<char*>(page1); | 453 char* pageBase = reinterpret_cast<char*>(page1); |
454 // Map a single system page either side of the mapping for our allocations, | 454 // Map a single system page either side of the mapping for our allocations, |
455 // with the goal of tripping up alignment of the next mapping. | 455 // with the goal of tripping up alignment of the next mapping. |
456 void* map1 = mmap(pageBase - WTF::kSystemPageSize, WTF::kSystemPageSize, PRO
T_NONE, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0); | 456 void* map1 = mmap(pageBase - WTF::kSystemPageSize, WTF::kSystemPageSize, PRO
T_NONE, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0); |
457 EXPECT_TRUE(map1 && map1 != MAP_FAILED); | 457 EXPECT_TRUE(map1 && map1 != MAP_FAILED); |
458 void* map2 = mmap(pageBase + WTF::kSuperPageSize, WTF::kSystemPageSize, PROT
_NONE, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0); | 458 void* map2 = mmap(pageBase + WTF::kSuperPageSize, WTF::kSystemPageSize, PROT
_NONE, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0); |
459 EXPECT_TRUE(map2 && map2 != MAP_FAILED); | 459 EXPECT_TRUE(map2 && map2 != MAP_FAILED); |
460 | 460 |
461 WTF::PartitionPageHeader* page2 = GetFullPage(kTestAllocSize); | 461 WTF::PartitionPageHeader* page2 = GetFullPage(kTestAllocSize); |
462 EXPECT_EQ(0u, reinterpret_cast<uintptr_t>(page2) & WTF::kPartitionPageOffset
Mask); | 462 EXPECT_EQ(0u, reinterpret_cast<uintptr_t>(page2) & WTF::kPartitionPageOffset
Mask); |
463 FreeFullPage(page2, kTestAllocSize); | 463 FreeFullPage(page2, kTestAllocSize); |
464 | 464 |
465 FreeFullPage(page1, kTestAllocSize); | 465 FreeFullPage(page1, kTestAllocSize); |
466 munmap(map1, WTF::kSystemPageSize); | 466 munmap(map1, WTF::kSystemPageSize); |
467 munmap(map2, WTF::kSystemPageSize); | 467 munmap(map2, WTF::kSystemPageSize); |
468 | 468 |
469 TestShutdown(); | 469 TestShutdown(); |
470 } | 470 } |
471 | 471 |
472 #endif // OS(UNIX) | 472 #endif // OS(POSIX) |
473 | 473 |
474 } // namespace | 474 } // namespace |
475 | 475 |
476 #endif // !defined(MEMORY_TOOL_REPLACES_ALLOCATOR) | 476 #endif // !defined(MEMORY_TOOL_REPLACES_ALLOCATOR) |
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