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a3b31e3364
R=srdjan@google.com Review URL: https://codereview.chromium.org//600243002 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@40699 260f80e4-7a28-3924-810f-c04153c831b5
74 lines
2.6 KiB
C++
74 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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#include "vm/assembler.h"
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#include "vm/instructions.h"
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#include "vm/stub_code.h"
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#include "vm/unit_test.h"
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namespace dart {
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#define __ assembler->
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ASSEMBLER_TEST_GENERATE(Call, assembler) {
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StubCode* stub_code = Isolate::Current()->stub_code();
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__ BranchLinkPatchable(&stub_code->InvokeDartCodeLabel());
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__ Ret();
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}
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ASSEMBLER_TEST_RUN(Call, test) {
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// The return address, which must be the address of an instruction contained
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// in the code, points to the Ret instruction above, i.e. two instructions
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// before the end of the code buffer, including the delay slot for the
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// return jump.
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CallPattern call(test->entry() + test->code().Size() - (2*Instr::kInstrSize),
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test->code());
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StubCode* stub_code = Isolate::Current()->stub_code();
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EXPECT_EQ(stub_code->InvokeDartCodeLabel().address(),
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call.TargetAddress());
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}
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ASSEMBLER_TEST_GENERATE(Jump, assembler) {
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StubCode* stub_code = Isolate::Current()->stub_code();
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__ BranchPatchable(&stub_code->InvokeDartCodeLabel());
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const Code& array_stub = Code::Handle(stub_code->GetAllocateArrayStub());
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const ExternalLabel array_label(array_stub.EntryPoint());
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__ BranchPatchable(&array_label);
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}
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ASSEMBLER_TEST_RUN(Jump, test) {
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const Code& code = test->code();
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const Instructions& instrs = Instructions::Handle(code.instructions());
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bool status =
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VirtualMemory::Protect(reinterpret_cast<void*>(instrs.EntryPoint()),
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instrs.size(),
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VirtualMemory::kReadWrite);
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StubCode* stub_code = Isolate::Current()->stub_code();
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EXPECT(status);
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JumpPattern jump1(test->entry(), test->code());
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EXPECT_EQ(stub_code->InvokeDartCodeLabel().address(),
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jump1.TargetAddress());
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JumpPattern jump2(test->entry() + jump1.pattern_length_in_bytes(),
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test->code());
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const Code& array_stub = Code::Handle(stub_code->GetAllocateArrayStub());
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EXPECT_EQ(array_stub.EntryPoint(), jump2.TargetAddress());
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uword target1 = jump1.TargetAddress();
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uword target2 = jump2.TargetAddress();
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jump1.SetTargetAddress(target2);
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jump2.SetTargetAddress(target1);
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EXPECT_EQ(array_stub.EntryPoint(), jump1.TargetAddress());
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EXPECT_EQ(stub_code->InvokeDartCodeLabel().address(),
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jump2.TargetAddress());
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}
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} // namespace dart
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#endif // defined TARGET_ARCH_MIPS
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