| OLD | NEW |
| 1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 // This module gets enough CPU information to optimize the | 5 // This module gets enough CPU information to optimize the |
| 6 // atomicops module on x86. | 6 // atomicops module on x86. |
| 7 | 7 |
| 8 #include <string.h> | 8 #include <string.h> |
| 9 | 9 |
| 10 #include "atomicops.h" | 10 #include "src/atomicops.h" |
| 11 | 11 |
| 12 // This file only makes sense with atomicops_internals_x86_gcc.h -- it | 12 // This file only makes sense with atomicops_internals_x86_gcc.h -- it |
| 13 // depends on structs that are defined in that file. If atomicops.h | 13 // depends on structs that are defined in that file. If atomicops.h |
| 14 // doesn't sub-include that file, then we aren't needed, and shouldn't | 14 // doesn't sub-include that file, then we aren't needed, and shouldn't |
| 15 // try to do anything. | 15 // try to do anything. |
| 16 #ifdef V8_ATOMICOPS_INTERNALS_X86_GCC_H_ | 16 #ifdef V8_ATOMICOPS_INTERNALS_X86_GCC_H_ |
| 17 | 17 |
| 18 // Inline cpuid instruction. In PIC compilations, %ebx contains the address | 18 // Inline cpuid instruction. In PIC compilations, %ebx contains the address |
| 19 // of the global offset table. To avoid breaking such executables, this code | 19 // of the global offset table. To avoid breaking such executables, this code |
| 20 // must preserve that register's value across cpuid instructions. | 20 // must preserve that register's value across cpuid instructions. |
| (...skipping 81 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 102 | 102 |
| 103 | 103 |
| 104 // A global to get use initialized on startup via static initialization :/ | 104 // A global to get use initialized on startup via static initialization :/ |
| 105 AtomicOpsx86Initializer g_initer; | 105 AtomicOpsx86Initializer g_initer; |
| 106 | 106 |
| 107 } // namespace | 107 } // namespace |
| 108 | 108 |
| 109 #endif // if x86 | 109 #endif // if x86 |
| 110 | 110 |
| 111 #endif // ifdef V8_ATOMICOPS_INTERNALS_X86_GCC_H_ | 111 #endif // ifdef V8_ATOMICOPS_INTERNALS_X86_GCC_H_ |
| OLD | NEW |