blob: f592257e045a0e26cd41ac1e4ec72d15d0438703 [file] [log] [blame]
Andrei Popescu31002712010-02-23 13:46:05 +00001// Copyright 2010 the V8 project authors. All rights reserved.
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// CPU specific code for arm independent of OS goes here.
29
30#include <sys/syscall.h>
31#include <unistd.h>
32
33#ifdef __mips
34#include <asm/cachectl.h>
35#endif // #ifdef __mips
36
37#include "v8.h"
38#include "cpu.h"
39
40namespace v8 {
41namespace internal {
42
43void CPU::Setup() {
44 // Nothing to do.
45}
46
47void CPU::FlushICache(void* start, size_t size) {
48#ifdef __mips
49 int res;
50
51 // See http://www.linux-mips.org/wiki/Cacheflush_Syscall
52 res = syscall(__NR_cacheflush, start, size, ICACHE);
53
54 if (res) {
55 V8_Fatal(__FILE__, __LINE__, "Failed to flush the instruction cache");
56 }
57
58#endif // #ifdef __mips
59}
60
61
62void CPU::DebugBreak() {
63#ifdef __mips
64 asm volatile("break");
65#endif // #ifdef __mips
66}
67
68} } // namespace v8::internal
69