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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_PLATFORM_UTILS_MACOS_H_ | 5 #ifndef RUNTIME_PLATFORM_UTILS_MACOS_H_ |
6 #define RUNTIME_PLATFORM_UTILS_MACOS_H_ | 6 #define RUNTIME_PLATFORM_UTILS_MACOS_H_ |
7 | 7 |
8 #include <libkern/OSByteOrder.h> // NOLINT | 8 #include <libkern/OSByteOrder.h> // NOLINT |
9 | 9 |
10 namespace dart { | 10 namespace dart { |
11 | 11 |
12 inline int Utils::CountLeadingZeros(uword x) { | 12 inline int Utils::CountLeadingZeros(uword x) { |
13 #if defined(ARCH_IS_32_BIT) | 13 #if defined(ARCH_IS_32_BIT) |
14 return __builtin_clzl(x); | 14 return __builtin_clzl(x); |
15 #elif defined(ARCH_IS_64_BIT) | 15 #elif defined(ARCH_IS_64_BIT) |
16 return __builtin_clzll(x); | 16 return __builtin_clzll(x); |
17 #else | 17 #else |
18 #error Architecture is not 32-bit or 64-bit. | 18 #error Architecture is not 32-bit or 64-bit. |
19 #endif | 19 #endif |
20 } | 20 } |
21 | 21 |
22 | |
23 inline int Utils::CountTrailingZeros(uword x) { | 22 inline int Utils::CountTrailingZeros(uword x) { |
24 #if defined(ARCH_IS_32_BIT) | 23 #if defined(ARCH_IS_32_BIT) |
25 return __builtin_ctzl(x); | 24 return __builtin_ctzl(x); |
26 #elif defined(ARCH_IS_64_BIT) | 25 #elif defined(ARCH_IS_64_BIT) |
27 return __builtin_ctzll(x); | 26 return __builtin_ctzll(x); |
28 #else | 27 #else |
29 #error Architecture is not 32-bit or 64-bit. | 28 #error Architecture is not 32-bit or 64-bit. |
30 #endif | 29 #endif |
31 } | 30 } |
32 | 31 |
33 | |
34 inline uint16_t Utils::HostToBigEndian16(uint16_t value) { | 32 inline uint16_t Utils::HostToBigEndian16(uint16_t value) { |
35 return OSSwapHostToBigInt16(value); | 33 return OSSwapHostToBigInt16(value); |
36 } | 34 } |
37 | 35 |
38 | |
39 inline uint32_t Utils::HostToBigEndian32(uint32_t value) { | 36 inline uint32_t Utils::HostToBigEndian32(uint32_t value) { |
40 return OSSwapHostToBigInt32(value); | 37 return OSSwapHostToBigInt32(value); |
41 } | 38 } |
42 | 39 |
43 | |
44 inline uint64_t Utils::HostToBigEndian64(uint64_t value) { | 40 inline uint64_t Utils::HostToBigEndian64(uint64_t value) { |
45 return OSSwapHostToBigInt64(value); | 41 return OSSwapHostToBigInt64(value); |
46 } | 42 } |
47 | 43 |
48 | |
49 inline uint16_t Utils::HostToLittleEndian16(uint16_t value) { | 44 inline uint16_t Utils::HostToLittleEndian16(uint16_t value) { |
50 return OSSwapHostToLittleInt16(value); | 45 return OSSwapHostToLittleInt16(value); |
51 } | 46 } |
52 | 47 |
53 | |
54 inline uint32_t Utils::HostToLittleEndian32(uint32_t value) { | 48 inline uint32_t Utils::HostToLittleEndian32(uint32_t value) { |
55 return OSSwapHostToLittleInt32(value); | 49 return OSSwapHostToLittleInt32(value); |
56 } | 50 } |
57 | 51 |
58 | |
59 inline uint64_t Utils::HostToLittleEndian64(uint64_t value) { | 52 inline uint64_t Utils::HostToLittleEndian64(uint64_t value) { |
60 return OSSwapHostToLittleInt64(value); | 53 return OSSwapHostToLittleInt64(value); |
61 } | 54 } |
62 | 55 |
63 inline char* Utils::StrError(int err, char* buffer, size_t bufsize) { | 56 inline char* Utils::StrError(int err, char* buffer, size_t bufsize) { |
64 if (strerror_r(err, buffer, bufsize) != 0) { | 57 if (strerror_r(err, buffer, bufsize) != 0) { |
65 snprintf(buffer, bufsize, "%s", "strerror_r failed"); | 58 snprintf(buffer, bufsize, "%s", "strerror_r failed"); |
66 } | 59 } |
67 return buffer; | 60 return buffer; |
68 } | 61 } |
69 | 62 |
70 } // namespace dart | 63 } // namespace dart |
71 | 64 |
72 #endif // RUNTIME_PLATFORM_UTILS_MACOS_H_ | 65 #endif // RUNTIME_PLATFORM_UTILS_MACOS_H_ |
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