blob: f592257e045a0e26cd41ac1e4ec72d15d0438703 [file] [log] [blame]
// 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