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