Ivan Posva
8f1506e817
- Make sure to switch on HOST_ARCH_ and on USING_SIMULATOR where appropriate. - Avoid allocating in new generation when running in the VM isolate. BUG= R=srdjan@google.com Review URL: https://codereview.chromium.org//1156053006
109 lines
2.4 KiB
C++
109 lines
2.4 KiB
C++
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "vm/globals.h"
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#if defined(TARGET_ARCH_MIPS)
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#include "vm/cpu.h"
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#include "vm/cpuinfo.h"
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#include "vm/simulator.h"
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#if !defined(USING_SIMULATOR)
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#include <asm/cachectl.h> /* NOLINT */
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#include <sys/syscall.h> /* NOLINT */
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#include <unistd.h> /* NOLINT */
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#endif
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namespace dart {
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void CPU::FlushICache(uword start, uword size) {
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#if !defined(USING_SIMULATOR)
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int res;
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// See http://www.linux-mips.org/wiki/Cacheflush_Syscall.
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res = syscall(__NR_cacheflush, start, size, ICACHE);
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ASSERT(res == 0);
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#else // defined(HOST_ARCH_MIPS)
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// When running in simulated mode we do not need to flush the ICache because
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// we are not running on the actual hardware.
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#endif // defined(HOST_ARCH_MIPS)
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}
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const char* CPU::Id() {
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return
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#if defined(USING_SIMULATOR)
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"sim"
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#endif // !defined(HOST_ARCH_MIPS)
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"mips";
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}
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const char* HostCPUFeatures::hardware_ = NULL;
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MIPSVersion HostCPUFeatures::mips_version_ = MIPSvUnknown;
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#if defined(DEBUG)
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bool HostCPUFeatures::initialized_ = false;
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#endif
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#if !defined(USING_SIMULATOR)
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void HostCPUFeatures::InitOnce() {
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CpuInfo::InitOnce();
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hardware_ = CpuInfo::GetCpuModel();
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// Has a floating point unit.
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ASSERT(CpuInfo::FieldContains(kCpuInfoModel, "FPU"));
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// We want to know the ISA version, but on MIPS, CpuInfo can't tell us, so
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// we use the same ISA version that Dart's C++ compiler targeted.
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#if defined(_MIPS_ARCH_MIPS32R2)
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mips_version_ = MIPS32r2;
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#elif defined(_MIPS_ARCH_MIPS32)
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mips_version_ = MIPS32;
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#endif
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#if defined(DEBUG)
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initialized_ = true;
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#endif
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}
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void HostCPUFeatures::Cleanup() {
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DEBUG_ASSERT(initialized_);
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#if defined(DEBUG)
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initialized_ = false;
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#endif
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ASSERT(hardware_ != NULL);
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free(const_cast<char*>(hardware_));
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hardware_ = NULL;
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CpuInfo::Cleanup();
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}
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#else
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void HostCPUFeatures::InitOnce() {
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CpuInfo::InitOnce();
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hardware_ = CpuInfo::GetCpuModel();
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mips_version_ = MIPS32r2;
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#if defined(DEBUG)
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initialized_ = true;
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#endif
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}
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void HostCPUFeatures::Cleanup() {
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DEBUG_ASSERT(initialized_);
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#if defined(DEBUG)
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initialized_ = false;
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#endif
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ASSERT(hardware_ != NULL);
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free(const_cast<char*>(hardware_));
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hardware_ = NULL;
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CpuInfo::Cleanup();
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}
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#endif // defined(HOST_ARCH_MIPS)
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} // namespace dart
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#endif // defined TARGET_ARCH_MIPS
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