| // Copyright 2012 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // 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 |
| |
| #if V8_TARGET_ARCH_MIPS |
| |
| #include "src/assembler.h" |
| #include "src/macro-assembler.h" |
| |
| #include "src/simulator.h" // For cache flushing. |
| |
| namespace v8 { |
| namespace internal { |
| |
| |
| void CpuFeatures::FlushICache(void* start, size_t size) { |
| #if !defined(USE_SIMULATOR) |
| // Nothing to do, flushing no instructions. |
| if (size == 0) { |
| return; |
| } |
| |
| #if defined(ANDROID) |
| // Bionic cacheflush can typically run in userland, avoiding kernel call. |
| char *end = reinterpret_cast<char *>(start) + size; |
| cacheflush( |
| reinterpret_cast<intptr_t>(start), reinterpret_cast<intptr_t>(end), 0); |
| #else // ANDROID |
| 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 // ANDROID |
| #endif // !USE_SIMULATOR. |
| } |
| |
| } // namespace internal |
| } // namespace v8 |
| |
| #endif // V8_TARGET_ARCH_MIPS |