regis@google.com
a879bba2ff
This required support on ARM for: - compilation of static calls - patching of static calls - stub to call into runtime - redirection support for calls from simulator to host runtime - stack frame iteration Review URL: https://codereview.chromium.org//12381034 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@19405 260f80e4-7a28-3924-810f-c04153c831b5
95 lines
2.6 KiB
C++
95 lines
2.6 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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// Only build the simulator if not compiling for real MIPS hardware.
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#if !defined(HOST_ARCH_MIPS)
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#include "vm/simulator.h"
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#include "vm/assembler.h"
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#include "vm/constants_mips.h"
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#include "vm/disassembler.h"
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namespace dart {
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Simulator::Simulator() {
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// Setup simulator support first. Some of this information is needed to
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// setup the architecture state.
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// We allocate the stack here, the size is computed as the sum of
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// the size specified by the user and the buffer space needed for
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// handling stack overflow exceptions. To be safe in potential
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// stack underflows we also add some underflow buffer space.
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stack_ = new char[(Isolate::GetSpecifiedStackSize() +
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Isolate::kStackSizeBuffer +
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kSimulatorStackUnderflowSize)];
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}
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Simulator::~Simulator() {
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Isolate* isolate = Isolate::Current();
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if (isolate != NULL) {
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isolate->set_simulator(NULL);
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}
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}
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// Get the active Simulator for the current isolate.
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Simulator* Simulator::Current() {
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Simulator* simulator = Isolate::Current()->simulator();
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if (simulator == NULL) {
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simulator = new Simulator();
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Isolate::Current()->set_simulator(simulator);
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}
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return simulator;
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}
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// Sets the register in the architecture state. It will also deal with updating
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// Simulator internal state for special registers such as PC.
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void Simulator::set_register(Register reg, int32_t value) {
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UNIMPLEMENTED();
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}
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// Get the register from the architecture state. This function does handle
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// the special case of accessing the PC register.
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int32_t Simulator::get_register(Register reg) const {
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UNIMPLEMENTED();
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return 0;
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}
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// Returns the top of the stack area to enable checking for stack pointer
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// validity.
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uword Simulator::StackTop() const {
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// To be safe in potential stack underflows we leave some buffer above and
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// set the stack top.
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return reinterpret_cast<uword>(stack_) +
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(Isolate::GetSpecifiedStackSize() + Isolate::kStackSizeBuffer);
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}
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void Simulator::InitOnce() {
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}
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int64_t Simulator::Call(int32_t entry,
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int32_t parameter0,
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int32_t parameter1,
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int32_t parameter2,
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int32_t parameter3,
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int32_t parameter4) {
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UNIMPLEMENTED();
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return 0LL;
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}
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} // namespace dart
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#endif // !defined(HOST_ARCH_MIPS)
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#endif // defined TARGET_ARCH_MIPS
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