ager@chromium.org | 9258b6b | 2008-09-11 09:11:10 +0000 | [diff] [blame] | 1 | // Copyright 2006-2008 the V8 project authors. All rights reserved. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | // This module contains the architecture-specific code. This make the rest of |
| 29 | // the code less dependent on differences between different processor |
| 30 | // architecture. |
| 31 | // The classes have the same definition for all architectures. The |
| 32 | // implementation for a particular architecture is put in cpu_<arch>.cc. |
| 33 | // The build system then uses the implementation for the target architecture. |
| 34 | // |
| 35 | |
| 36 | #ifndef V8_CPU_H_ |
| 37 | #define V8_CPU_H_ |
| 38 | |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 39 | #include "allocation.h" |
| 40 | |
kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 41 | namespace v8 { |
| 42 | namespace internal { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 43 | |
| 44 | // ---------------------------------------------------------------------------- |
| 45 | // CPU |
| 46 | // |
| 47 | // This class has static methods for the architecture specific functions. Add |
| 48 | // methods here to cope with differences between the supported architectures. |
| 49 | // |
| 50 | // For each architecture the file cpu_<arch>.cc contains the implementation of |
| 51 | // these functions. |
| 52 | |
| 53 | class CPU : public AllStatic { |
| 54 | public: |
| 55 | // Initializes the cpu architecture support. Called once at VM startup. |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 56 | static void SetUp(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 57 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 58 | static bool SupportsCrankshaft(); |
| 59 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 60 | // Flush instruction cache. |
| 61 | static void FlushICache(void* start, size_t size); |
| 62 | |
| 63 | // Try to activate a system level debugger. |
| 64 | static void DebugBreak(); |
| 65 | }; |
| 66 | |
| 67 | } } // namespace v8::internal |
| 68 | |
| 69 | #endif // V8_CPU_H_ |