| // Copyright 2008 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #ifndef V8_IA32_SIMULATOR_IA32_H_ |
| #define V8_IA32_SIMULATOR_IA32_H_ |
| |
| |
| // Since there is no simulator for the ia32 architecture the only thing we can |
| // do is to call the entry directly. |
| #define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4) \ |
| entry(p0, p1, p2, p3, p4); |
| |
| // Calculated the stack limit beyond which we will throw stack overflow errors. |
| // This macro must be called from a C++ method. It relies on being able to take |
| // the address of "this" to get a value on the current execution stack and then |
| // calculates the stack limit based on that value. |
| // NOTE: The check for overflow is not safe as there is no guarantee that the |
| // running thread has its stack in all memory up to address 0x00000000. |
| #define GENERATED_CODE_STACK_LIMIT(limit) \ |
| (reinterpret_cast<uintptr_t>(this) >= limit ? \ |
| reinterpret_cast<uintptr_t>(this) - limit : 0) |
| |
| #endif // V8_IA32_SIMULATOR_IA32_H_ |
