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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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72 // Should be a recognizable hex value tagged as a failure. | 72 // Should be a recognizable hex value tagged as a failure. |
73 #ifdef V8_HOST_ARCH_64_BIT | 73 #ifdef V8_HOST_ARCH_64_BIT |
74 const Address kZapValue = | 74 const Address kZapValue = |
75 reinterpret_cast<Address>(V8_UINT64_C(0xdeadbeedbeadbeef)); | 75 reinterpret_cast<Address>(V8_UINT64_C(0xdeadbeedbeadbeef)); |
76 const Address kHandleZapValue = | 76 const Address kHandleZapValue = |
77 reinterpret_cast<Address>(V8_UINT64_C(0x1baddead0baddeaf)); | 77 reinterpret_cast<Address>(V8_UINT64_C(0x1baddead0baddeaf)); |
78 const Address kFromSpaceZapValue = | 78 const Address kFromSpaceZapValue = |
79 reinterpret_cast<Address>(V8_UINT64_C(0x1beefdad0beefdaf)); | 79 reinterpret_cast<Address>(V8_UINT64_C(0x1beefdad0beefdaf)); |
80 const uint64_t kDebugZapValue = V8_UINT64_C(0xbadbaddbbadbaddb); | 80 const uint64_t kDebugZapValue = V8_UINT64_C(0xbadbaddbbadbaddb); |
81 const uint64_t kSlotsZapValue = V8_UINT64_C(0xbeefdeadbeefdeef); | 81 const uint64_t kSlotsZapValue = V8_UINT64_C(0xbeefdeadbeefdeef); |
| 82 const uint64_t kFreeListZapValue = 0xfeed1eaffeed1eaf; |
82 #else | 83 #else |
83 const Address kZapValue = reinterpret_cast<Address>(0xdeadbeef); | 84 const Address kZapValue = reinterpret_cast<Address>(0xdeadbeef); |
84 const Address kHandleZapValue = reinterpret_cast<Address>(0xbaddeaf); | 85 const Address kHandleZapValue = reinterpret_cast<Address>(0xbaddeaf); |
85 const Address kFromSpaceZapValue = reinterpret_cast<Address>(0xbeefdaf); | 86 const Address kFromSpaceZapValue = reinterpret_cast<Address>(0xbeefdaf); |
86 const uint32_t kSlotsZapValue = 0xbeefdeef; | 87 const uint32_t kSlotsZapValue = 0xbeefdeef; |
87 const uint32_t kDebugZapValue = 0xbadbaddb; | 88 const uint32_t kDebugZapValue = 0xbadbaddb; |
| 89 const uint32_t kFreeListZapValue = 0xfeed1eaf; |
88 #endif | 90 #endif |
89 | 91 |
90 | 92 |
91 // Number of bits to represent the page size for paged spaces. The value of 20 | 93 // Number of bits to represent the page size for paged spaces. The value of 20 |
92 // gives 1Mb bytes per page. | 94 // gives 1Mb bytes per page. |
93 const int kPageSizeBits = 20; | 95 const int kPageSizeBits = 20; |
94 | 96 |
95 // On Intel architecture, cache line size is 64 bytes. | 97 // On Intel architecture, cache line size is 64 bytes. |
96 // On ARM it may be less (32 bytes), but as far this constant is | 98 // On ARM it may be less (32 bytes), but as far this constant is |
97 // used for aligning data, it doesn't hurt to align on a greater value. | 99 // used for aligning data, it doesn't hurt to align on a greater value. |
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475 kStrictMode, | 477 kStrictMode, |
476 // This value is never used, but is needed to prevent GCC 4.5 from failing | 478 // This value is never used, but is needed to prevent GCC 4.5 from failing |
477 // to compile when we assert that a flag is either kNonStrictMode or | 479 // to compile when we assert that a flag is either kNonStrictMode or |
478 // kStrictMode. | 480 // kStrictMode. |
479 kInvalidStrictFlag | 481 kInvalidStrictFlag |
480 }; | 482 }; |
481 | 483 |
482 } } // namespace v8::internal | 484 } } // namespace v8::internal |
483 | 485 |
484 #endif // V8_V8GLOBALS_H_ | 486 #endif // V8_V8GLOBALS_H_ |
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