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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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37 // the platform dependent classes could have been implemented using abstract | 37 // the platform dependent classes could have been implemented using abstract |
38 // superclasses with virtual methods and having specializations for each | 38 // superclasses with virtual methods and having specializations for each |
39 // platform. This design was rejected because it was more complicated and | 39 // platform. This design was rejected because it was more complicated and |
40 // slower. It would require factory methods for selecting the right | 40 // slower. It would require factory methods for selecting the right |
41 // implementation and the overhead of virtual methods for performance | 41 // implementation and the overhead of virtual methods for performance |
42 // sensitive like mutex locking/unlocking. | 42 // sensitive like mutex locking/unlocking. |
43 | 43 |
44 #ifndef V8_PLATFORM_H_ | 44 #ifndef V8_PLATFORM_H_ |
45 #define V8_PLATFORM_H_ | 45 #define V8_PLATFORM_H_ |
46 | 46 |
| 47 #include <cstdarg> |
| 48 |
| 49 #include "lazy-instance.h" |
| 50 #include "utils.h" |
| 51 #include "v8globals.h" |
| 52 |
47 #ifdef __sun | 53 #ifdef __sun |
48 # ifndef signbit | 54 # ifndef signbit |
49 namespace std { | 55 namespace std { |
50 int signbit(double x); | 56 int signbit(double x); |
51 } | 57 } |
52 # endif | 58 # endif |
53 #endif | 59 #endif |
54 | 60 |
55 // GCC specific stuff | 61 // GCC specific stuff |
56 #ifdef __GNUC__ | 62 #ifdef __GNUC__ |
57 | 63 |
58 // Needed for va_list on at least MinGW and Android. | |
59 #include <stdarg.h> | |
60 | |
61 #define __GNUC_VERSION__ (__GNUC__ * 10000 + __GNUC_MINOR__ * 100) | 64 #define __GNUC_VERSION__ (__GNUC__ * 10000 + __GNUC_MINOR__ * 100) |
62 | 65 |
63 #endif // __GNUC__ | 66 #endif // __GNUC__ |
64 | 67 |
65 | |
66 // Windows specific stuff. | |
67 #ifdef WIN32 | |
68 | |
69 // Microsoft Visual C++ specific stuff. | 68 // Microsoft Visual C++ specific stuff. |
70 #ifdef _MSC_VER | 69 #if V8_CC_MSVC |
71 | 70 |
72 #include "win32-headers.h" | 71 #include "win32-headers.h" |
73 #include "win32-math.h" | 72 #include "win32-math.h" |
74 | 73 |
75 int strncasecmp(const char* s1, const char* s2, int n); | 74 int strncasecmp(const char* s1, const char* s2, int n); |
76 | 75 |
77 inline int lrint(double flt) { | 76 inline int lrint(double flt) { |
78 int intgr; | 77 int intgr; |
79 #if defined(V8_TARGET_ARCH_IA32) | 78 #if V8_TARGET_ARCH_IA32 |
80 __asm { | 79 __asm { |
81 fld flt | 80 fld flt |
82 fistp intgr | 81 fistp intgr |
83 }; | 82 }; |
84 #else | 83 #else |
85 intgr = static_cast<int>(flt + 0.5); | 84 intgr = static_cast<int>(flt + 0.5); |
86 if ((intgr & 1) != 0 && intgr - flt == 0.5) { | 85 if ((intgr & 1) != 0 && intgr - flt == 0.5) { |
87 // If the number is halfway between two integers, round to the even one. | 86 // If the number is halfway between two integers, round to the even one. |
88 intgr--; | 87 intgr--; |
89 } | 88 } |
90 #endif | 89 #endif |
91 return intgr; | 90 return intgr; |
92 } | 91 } |
93 | 92 |
94 #endif // _MSC_VER | 93 #endif // V8_CC_MSVC |
95 | 94 |
96 #ifndef __CYGWIN__ | |
97 // Random is missing on both Visual Studio and MinGW. | 95 // Random is missing on both Visual Studio and MinGW. |
| 96 #if V8_CC_MSVC || V8_CC_MINGW |
98 int random(); | 97 int random(); |
99 #endif | 98 #endif // V8_CC_MSVC || V8_CC_MINGW |
100 | |
101 #endif // WIN32 | |
102 | |
103 #include "lazy-instance.h" | |
104 #include "utils.h" | |
105 #include "v8globals.h" | |
106 | 99 |
107 namespace v8 { | 100 namespace v8 { |
108 namespace internal { | 101 namespace internal { |
109 | 102 |
110 class Semaphore; | 103 class Semaphore; |
111 class Mutex; | 104 class Mutex; |
112 | 105 |
113 double ceiling(double x); | 106 double ceiling(double x); |
114 double modulo(double x, double y); | 107 double modulo(double x, double y); |
115 | 108 |
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805 static uint16_t HToN(uint16_t value); | 798 static uint16_t HToN(uint16_t value); |
806 static uint16_t NToH(uint16_t value); | 799 static uint16_t NToH(uint16_t value); |
807 static uint32_t HToN(uint32_t value); | 800 static uint32_t HToN(uint32_t value); |
808 static uint32_t NToH(uint32_t value); | 801 static uint32_t NToH(uint32_t value); |
809 }; | 802 }; |
810 | 803 |
811 | 804 |
812 } } // namespace v8::internal | 805 } } // namespace v8::internal |
813 | 806 |
814 #endif // V8_PLATFORM_H_ | 807 #endif // V8_PLATFORM_H_ |
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