| // Copyright 2010 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. |
| |
| // CPU specific code for arm independent of OS goes here. |
| |
| #include <sys/syscall.h> |
| #include <unistd.h> |
| |
| #ifdef __mips |
| #include <asm/cachectl.h> |
| #endif // #ifdef __mips |
| |
| #include "v8.h" |
| #include "cpu.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| void CPU::Setup() { |
| // Nothing to do. |
| } |
| |
| void CPU::FlushICache(void* start, size_t size) { |
| #ifdef __mips |
| int res; |
| |
| // See http://www.linux-mips.org/wiki/Cacheflush_Syscall |
| res = syscall(__NR_cacheflush, start, size, ICACHE); |
| |
| if (res) { |
| V8_Fatal(__FILE__, __LINE__, "Failed to flush the instruction cache"); |
| } |
| |
| #endif // #ifdef __mips |
| } |
| |
| |
| void CPU::DebugBreak() { |
| #ifdef __mips |
| asm volatile("break"); |
| #endif // #ifdef __mips |
| } |
| |
| } } // namespace v8::internal |
| |