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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #ifndef RUNTIME_VM_GLOBALS_H_ | 5 #ifndef RUNTIME_VM_GLOBALS_H_ |
6 #define RUNTIME_VM_GLOBALS_H_ | 6 #define RUNTIME_VM_GLOBALS_H_ |
7 | 7 |
8 // This file contains global definitions for the VM library only. Anything that | 8 // This file contains global definitions for the VM library only. Anything that |
9 // is more globally useful should be added to 'vm/globals.h'. | 9 // is more globally useful should be added to 'vm/globals.h'. |
10 | 10 |
11 #include "platform/globals.h" | 11 #include "platform/globals.h" |
12 | 12 |
13 #if defined(_WIN32) | 13 #if defined(_WIN32) |
14 // Undef conflicting defines. | 14 // Undef conflicting defines. |
15 #undef PARITY_EVEN | 15 #undef PARITY_EVEN |
16 #undef PARITY_ODD | 16 #undef PARITY_ODD |
17 #undef near | 17 #undef near |
18 #endif // defined(_WIN32) | 18 #endif // defined(_WIN32) |
19 | 19 |
20 // The following #defines are invalidated. | 20 // The following #defines are invalidated. |
21 #undef OVERFLOW // From math.h conflicts in constants_ia32.h | 21 #undef OVERFLOW // From math.h conflicts in constants_ia32.h |
22 | 22 |
23 namespace dart { | 23 namespace dart { |
24 // Smi value range is from -(2^N) to (2^N)-1. | 24 // Smi value range is from -(2^N) to (2^N)-1. |
25 // N=30 (32-bit build) or N=62 (64-bit build). | 25 // N=30 (32-bit build) or N=62 (64-bit build). |
26 const intptr_t kSmiBits = kBitsPerWord - 2; | 26 const intptr_t kSmiBits = kBitsPerWord - 2; |
27 const intptr_t kSmiMax = (static_cast<intptr_t>(1) << kSmiBits) - 1; | 27 const intptr_t kSmiMax = (static_cast<intptr_t>(1) << kSmiBits) - 1; |
28 const intptr_t kSmiMin = -(static_cast<intptr_t>(1) << kSmiBits); | 28 const intptr_t kSmiMin = -(static_cast<intptr_t>(1) << kSmiBits); |
29 | 29 |
30 // Hard coded from above but for 32-bit architectures. | 30 // Hard coded from above but for 32-bit architectures. |
31 const intptr_t kSmiBits32 = kBitsPerInt32 - 2; | 31 const intptr_t kSmiBits32 = kBitsPerInt32 - 2; |
32 const intptr_t kSmiMax32 = (static_cast<intptr_t>(1) << kSmiBits32) - 1; | 32 const intptr_t kSmiMax32 = (static_cast<intptr_t>(1) << kSmiBits32) - 1; |
33 const intptr_t kSmiMin32 = -(static_cast<intptr_t>(1) << kSmiBits32); | 33 const intptr_t kSmiMin32 = -(static_cast<intptr_t>(1) << kSmiBits32); |
34 | 34 |
35 #define kPosInfinity bit_cast<double>(DART_UINT64_C(0x7ff0000000000000)) | 35 #define kPosInfinity bit_cast<double>(DART_UINT64_C(0x7ff0000000000000)) |
36 #define kNegInfinity bit_cast<double>(DART_UINT64_C(0xfff0000000000000)) | 36 #define kNegInfinity bit_cast<double>(DART_UINT64_C(0xfff0000000000000)) |
37 | 37 |
38 // The expression ARRAY_SIZE(array) is a compile-time constant of type | 38 // The expression ARRAY_SIZE(array) is a compile-time constant of type |
39 // size_t which represents the number of elements of the given | 39 // size_t which represents the number of elements of the given |
40 // array. You should only use ARRAY_SIZE on statically allocated | 40 // array. You should only use ARRAY_SIZE on statically allocated |
41 // arrays. | 41 // arrays. |
42 #define ARRAY_SIZE(array) \ | 42 #define ARRAY_SIZE(array) \ |
43 ((sizeof(array) / sizeof(*(array))) / \ | 43 ((sizeof(array) / sizeof(*(array))) / \ |
44 static_cast<intptr_t>(!(sizeof(array) % sizeof(*(array))))) | 44 static_cast<intptr_t>(!(sizeof(array) % sizeof(*(array))))) // NOLINT |
45 | 45 |
46 | 46 |
47 // The expression OFFSET_OF(type, field) computes the byte-offset of | 47 // The expression OFFSET_OF(type, field) computes the byte-offset of |
48 // the specified field relative to the containing type. | 48 // the specified field relative to the containing type. |
49 // | 49 // |
50 // The expression OFFSET_OF_RETURNED_VALUE(type, accessor) computes the | 50 // The expression OFFSET_OF_RETURNED_VALUE(type, accessor) computes the |
51 // byte-offset of the return value of the accessor to the containing type. | 51 // byte-offset of the return value of the accessor to the containing type. |
52 // | 52 // |
53 // None of these use 0 or NULL, which causes a problem with the compiler | 53 // None of these use 0 or NULL, which causes a problem with the compiler |
54 // warnings we have enabled (which is also why 'offsetof' doesn't seem to work). | 54 // warnings we have enabled (which is also why 'offsetof' doesn't seem to work). |
55 // The workaround is to use the non-zero value kOffsetOfPtr. | 55 // The workaround is to use the non-zero value kOffsetOfPtr. |
56 const intptr_t kOffsetOfPtr = 32; | 56 const intptr_t kOffsetOfPtr = 32; |
57 | 57 |
58 #define OFFSET_OF(type, field) \ | 58 #define OFFSET_OF(type, field) \ |
59 (reinterpret_cast<intptr_t>(&(reinterpret_cast<type*>(kOffsetOfPtr)->field)) \ | 59 (reinterpret_cast<intptr_t>( \ |
60 - kOffsetOfPtr) | 60 &(reinterpret_cast<type*>(kOffsetOfPtr)->field)) - \ |
| 61 kOffsetOfPtr) // NOLINT |
61 | 62 |
62 #define OFFSET_OF_RETURNED_VALUE(type, accessor) \ | 63 #define OFFSET_OF_RETURNED_VALUE(type, accessor) \ |
63 (reinterpret_cast<intptr_t>( \ | 64 (reinterpret_cast<intptr_t>( \ |
64 (reinterpret_cast<type*>(kOffsetOfPtr)->accessor())) - kOffsetOfPtr) | 65 (reinterpret_cast<type*>(kOffsetOfPtr)->accessor())) - \ |
| 66 kOffsetOfPtr) // NOLINT |
65 | 67 |
66 #define OPEN_ARRAY_START(type, align) \ | 68 #define OPEN_ARRAY_START(type, align) \ |
67 do { \ | 69 do { \ |
68 const uword result = reinterpret_cast<uword>(this) + sizeof(*this); \ | 70 const uword result = reinterpret_cast<uword>(this) + sizeof(*this); \ |
69 ASSERT(Utils::IsAligned(result, sizeof(align))); \ | 71 ASSERT(Utils::IsAligned(result, sizeof(align))); \ |
70 return reinterpret_cast<type*>(result); \ | 72 return reinterpret_cast<type*>(result); \ |
71 } while (0) | 73 } while (0) |
72 | 74 |
73 | 75 |
74 // A type large enough to contain the value of the C++ vtable. This is needed | 76 // A type large enough to contain the value of the C++ vtable. This is needed |
(...skipping 16 matching lines...) Expand all Loading... |
91 #if defined(ARCH_IS_32_BIT) | 93 #if defined(ARCH_IS_32_BIT) |
92 static const uword kZapUninitializedWord = 0xabababab; | 94 static const uword kZapUninitializedWord = 0xabababab; |
93 #else | 95 #else |
94 static const uword kZapUninitializedWord = 0xabababababababab; | 96 static const uword kZapUninitializedWord = 0xabababababababab; |
95 #endif | 97 #endif |
96 | 98 |
97 | 99 |
98 // Macros to get the contents of the fp register. | 100 // Macros to get the contents of the fp register. |
99 #if defined(TARGET_OS_WINDOWS) | 101 #if defined(TARGET_OS_WINDOWS) |
100 | 102 |
| 103 // clang-format off |
101 #if defined(HOST_ARCH_IA32) | 104 #if defined(HOST_ARCH_IA32) |
102 #define COPY_FP_REGISTER(fp) __asm { mov fp, ebp }; // NOLINT | 105 #define COPY_FP_REGISTER(fp) \ |
| 106 __asm { mov fp, ebp} \ |
| 107 ; // NOLINT |
| 108 // clang-format on |
103 #elif defined(HOST_ARCH_X64) | 109 #elif defined(HOST_ARCH_X64) |
104 #define COPY_FP_REGISTER(fp) UNIMPLEMENTED(); | 110 #define COPY_FP_REGISTER(fp) UNIMPLEMENTED(); |
105 #else | 111 #else |
106 #error Unknown host architecture. | 112 #error Unknown host architecture. |
107 #endif | 113 #endif |
108 | 114 |
109 #else // !defined(TARGET_OS_WINDOWS)) | 115 #else // !defined(TARGET_OS_WINDOWS)) |
110 | 116 |
111 // Assume GCC-like inline syntax is valid. | 117 // Assume GCC-like inline syntax is valid. |
112 #if defined(HOST_ARCH_IA32) | 118 #if defined(HOST_ARCH_IA32) |
113 #define COPY_FP_REGISTER(fp) asm volatile ("movl %%ebp, %0" : "=r" (fp) ); | 119 #define COPY_FP_REGISTER(fp) asm volatile("movl %%ebp, %0" : "=r"(fp)); |
114 #elif defined(HOST_ARCH_X64) | 120 #elif defined(HOST_ARCH_X64) |
115 #define COPY_FP_REGISTER(fp) asm volatile ("movq %%rbp, %0" : "=r" (fp) ); | 121 #define COPY_FP_REGISTER(fp) asm volatile("movq %%rbp, %0" : "=r"(fp)); |
116 #elif defined(HOST_ARCH_ARM) | 122 #elif defined(HOST_ARCH_ARM) |
117 # if defined(TARGET_OS_MAC) | 123 #if defined(TARGET_OS_MAC) |
118 #define COPY_FP_REGISTER(fp) asm volatile ("mov %0, r7" : "=r" (fp) ); | 124 #define COPY_FP_REGISTER(fp) asm volatile("mov %0, r7" : "=r"(fp)); |
119 # else | 125 #else |
120 #define COPY_FP_REGISTER(fp) asm volatile ("mov %0, r11" : "=r" (fp) ); | 126 #define COPY_FP_REGISTER(fp) asm volatile("mov %0, r11" : "=r"(fp)); |
121 # endif | 127 #endif |
122 #elif defined(HOST_ARCH_ARM64) | 128 #elif defined(HOST_ARCH_ARM64) |
123 #define COPY_FP_REGISTER(fp) asm volatile ("mov %0, x29" : "=r" (fp) ); | 129 #define COPY_FP_REGISTER(fp) asm volatile("mov %0, x29" : "=r"(fp)); |
124 #elif defined(HOST_ARCH_MIPS) | 130 #elif defined(HOST_ARCH_MIPS) |
125 #define COPY_FP_REGISTER(fp) asm volatile ("move %0, $fp" : "=r" (fp) ); | 131 #define COPY_FP_REGISTER(fp) asm volatile("move %0, $fp" : "=r"(fp)); |
126 #else | 132 #else |
127 #error Unknown host architecture. | 133 #error Unknown host architecture. |
128 #endif | 134 #endif |
129 | 135 |
130 | 136 |
131 #endif // !defined(TARGET_OS_WINDOWS)) | 137 #endif // !defined(TARGET_OS_WINDOWS)) |
132 | 138 |
133 } // namespace dart | 139 } // namespace dart |
134 | 140 |
135 #endif // RUNTIME_VM_GLOBALS_H_ | 141 #endif // RUNTIME_VM_GLOBALS_H_ |
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