92 lines
2.8 KiB
C++
92 lines
2.8 KiB
C++
//===-- TestMCDisasmInstanceRISCV.cpp -------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/TargetSelect.h"
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#include "gtest/gtest.h"
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#include "lldb/Core/Address.h"
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#include "lldb/Core/Disassembler.h"
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#include "lldb/Target/ExecutionContext.h"
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#include "lldb/Utility/ArchSpec.h"
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#include "Plugins/Disassembler/LLVMC/DisassemblerLLVMC.h"
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using namespace lldb;
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using namespace lldb_private;
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namespace {
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class TestMCDisasmInstanceRISCV : public testing::Test {
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public:
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static void SetUpTestCase();
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static void TearDownTestCase();
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protected:
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};
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void TestMCDisasmInstanceRISCV::SetUpTestCase() {
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llvm::InitializeAllTargets();
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llvm::InitializeAllAsmPrinters();
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llvm::InitializeAllTargetMCs();
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llvm::InitializeAllDisassemblers();
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DisassemblerLLVMC::Initialize();
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}
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void TestMCDisasmInstanceRISCV::TearDownTestCase() {
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DisassemblerLLVMC::Terminate();
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}
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} // namespace
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TEST_F(TestMCDisasmInstanceRISCV, TestRISCV32Instruction) {
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ArchSpec arch("riscv32-*-linux");
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const unsigned num_of_instructions = 5;
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uint8_t data[] = {
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0xef, 0x00, 0x00, 0x00, // call -- jal x1, 0
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0xe7, 0x00, 0x00, 0x00, // call -- jalr x1, x0, 0
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0x6f, 0x00, 0x00, 0x00, // jump -- jal x0, 0
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0x67, 0x00, 0x00, 0x00, // jump -- jalr x0, x0, 0
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0x67, 0x80, 0x00, 0x00 // ret -- jalr x0, x1, 0
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};
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DisassemblerSP disass_sp;
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Address start_addr(0x100);
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disass_sp =
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Disassembler::DisassembleBytes(arch, nullptr, nullptr, start_addr, &data,
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sizeof (data), num_of_instructions, false);
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// If we failed to get a disassembler, we can assume it is because
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// the llvm we linked against was not built with the riscv target,
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// and we should skip these tests without marking anything as failing.
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if (!disass_sp)
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return;
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const InstructionList inst_list(disass_sp->GetInstructionList());
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EXPECT_EQ(num_of_instructions, inst_list.GetSize());
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InstructionSP inst_sp;
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inst_sp = inst_list.GetInstructionAtIndex(0);
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EXPECT_TRUE(inst_sp->IsCall());
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EXPECT_TRUE(inst_sp->DoesBranch());
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inst_sp = inst_list.GetInstructionAtIndex(1);
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EXPECT_TRUE(inst_sp->IsCall());
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EXPECT_TRUE(inst_sp->DoesBranch());
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inst_sp = inst_list.GetInstructionAtIndex(2);
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EXPECT_FALSE(inst_sp->IsCall());
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EXPECT_TRUE(inst_sp->DoesBranch());
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inst_sp = inst_list.GetInstructionAtIndex(3);
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EXPECT_FALSE(inst_sp->IsCall());
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EXPECT_TRUE(inst_sp->DoesBranch());
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inst_sp = inst_list.GetInstructionAtIndex(4);
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EXPECT_FALSE(inst_sp->IsCall());
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EXPECT_TRUE(inst_sp->DoesBranch());
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}
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