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
20using namespace lldb;
21using namespace lldb_private;
22
23namespace {
24class TestArm64Disassembly : public testing::Test {
25public:
26 static void SetUpTestCase();
27 static void TearDownTestCase();
28
29 // virtual void SetUp() override { }
30 // virtual void TearDown() override { }
31
32protected:
33};
34
35void TestArm64Disassembly::SetUpTestCase() {
36 llvm::InitializeAllTargets();
37 llvm::InitializeAllAsmPrinters();
38 llvm::InitializeAllTargetMCs();
39 llvm::InitializeAllDisassemblers();
40 DisassemblerLLVMC::Initialize();
41}
42
43void TestArm64Disassembly::TearDownTestCase() {
44 DisassemblerLLVMC::Terminate();
45}
46} // namespace
47
48TEST_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, plugin_name: nullptr, flavor: nullptr, cpu: nullptr, features: nullptr, start: start_addr, bytes: &data, length: sizeof(data),
61 max_num_instructions: num_of_instructions, data_from_file: 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 (idx: 0);
75 mnemonic = inst_sp->GetMnemonic(exe_ctx: &exe_ctx);
76 ASSERT_STREQ ("sub", mnemonic);
77
78 inst_sp = inst_list.GetInstructionAtIndex (idx: 1);
79 mnemonic = inst_sp->GetMnemonic(exe_ctx: &exe_ctx);
80 ASSERT_STREQ ("cas", mnemonic);
81 }
82}
83

source code of lldb/unittests/Disassembler/ARM/TestArm64Disassembly.cpp