blob: 639b567474a2fff38f384af997cca5f1566a04e8 [file] [log] [blame]
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim: set ts=8 sts=4 et sw=4 tw=99:
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "jit/mips/Architecture-mips.h"
#include <elf.h>
#include <fcntl.h>
#include <unistd.h>
#define HWCAP_MIPS (1 << 31)
#define HWCAP_FPU (1 << 0)
namespace js {
namespace jit {
uint32_t GetMIPSFlags()
{
static bool isSet = false;
static uint32_t flags = 0;
if (isSet)
return flags;
#if WTF_OS_LINUX
FILE *fp = fopen("/proc/cpuinfo", "r");
if (!fp)
return false;
char buf[1024];
memset(buf, 0, sizeof(buf));
fread(buf, sizeof(char), sizeof(buf)-1, fp);
fclose(fp);
if (strstr(buf, "FPU"))
flags |= HWCAP_FPU;
isSet = true;
return flags;
#endif
return false;
}
bool hasFPU()
{
return js::jit::GetMIPSFlags() & HWCAP_FPU;
}
} // namespace ion
} // namespace js