1 //===-- TestArm64Disassembly.cpp ------------------------------------------===// 2 3 // 4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5 // See https://llvm.org/LICENSE.txt for license information. 6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "gtest/gtest.h" 11 12 #include "lldb/Core/Address.h" 13 #include "lldb/Core/Disassembler.h" 14 #include "lldb/Utility/ArchSpec.h" 15 #include "lldb/Target/ExecutionContext.h" 16 17 #include "Plugins/Disassembler/LLVMC/DisassemblerLLVMC.h" 18 #include "llvm/Support/TargetSelect.h" 19 20 using namespace lldb; 21 using namespace lldb_private; 22 23 namespace { 24 class TestArm64Disassembly : public testing::Test { 25 public: 26 static void SetUpTestCase(); 27 static void TearDownTestCase(); 28 29 // virtual void SetUp() override { } 30 // virtual void TearDown() override { } 31 32 protected: 33 }; 34 35 void TestArm64Disassembly::SetUpTestCase() { 36 llvm::InitializeAllTargets(); 37 llvm::InitializeAllAsmPrinters(); 38 llvm::InitializeAllTargetMCs(); 39 llvm::InitializeAllDisassemblers(); 40 DisassemblerLLVMC::Initialize(); 41 } 42 43 void TestArm64Disassembly::TearDownTestCase() { 44 DisassemblerLLVMC::Terminate(); 45 } 46 } // namespace 47 48 TEST_F(TestArm64Disassembly, TestArmv81Instruction) { 49 ArchSpec arch("arm64-apple-ios"); 50 51 const unsigned num_of_instructions = 2; 52 uint8_t data[] = { 53 0xff, 0x43, 0x00, 0xd1, // 0xd10043ff : sub sp, sp, #0x10 54 0x62, 0x7c, 0xa1, 0xc8, // 0xc8a17c62 : cas x1, x2, [x3] (cas defined in ARM v8.1 & newer) 55 }; 56 57 DisassemblerSP disass_sp; 58 Address start_addr(0x100); 59 disass_sp = Disassembler::DisassembleBytes( 60 arch, nullptr, nullptr, nullptr, nullptr, start_addr, &data, sizeof(data), 61 num_of_instructions, false); 62 63 // If we failed to get a disassembler, we can assume it is because 64 // the llvm we linked against was not built with the ARM target, 65 // and we should skip these tests without marking anything as failing. 66 67 if (disass_sp) { 68 const InstructionList inst_list (disass_sp->GetInstructionList()); 69 EXPECT_EQ (num_of_instructions, inst_list.GetSize()); 70 71 InstructionSP inst_sp; 72 const char *mnemonic; 73 ExecutionContext exe_ctx (nullptr, nullptr, nullptr); 74 inst_sp = inst_list.GetInstructionAtIndex (0); 75 mnemonic = inst_sp->GetMnemonic(&exe_ctx); 76 ASSERT_STREQ ("sub", mnemonic); 77 78 inst_sp = inst_list.GetInstructionAtIndex (1); 79 mnemonic = inst_sp->GetMnemonic(&exe_ctx); 80 ASSERT_STREQ ("cas", mnemonic); 81 } 82 } 83