1//===-- Testx86AssemblyInspectionEngine.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 "Plugins/UnwindAssembly/x86/x86AssemblyInspectionEngine.h"
13#include "lldb/Core/AddressRange.h"
14#include "lldb/Symbol/UnwindPlan.h"
15#include "lldb/Utility/ArchSpec.h"
16
17#include "llvm/Support/TargetSelect.h"
18
19#include <memory>
20#include <vector>
21
22using namespace lldb;
23using namespace lldb_private;
24
25class Testx86AssemblyInspectionEngine : public testing::Test {
26public:
27 static void SetUpTestCase();
28};
29
30void Testx86AssemblyInspectionEngine::SetUpTestCase() {
31 llvm::InitializeAllTargets();
32 llvm::InitializeAllAsmPrinters();
33 llvm::InitializeAllTargetMCs();
34 llvm::InitializeAllDisassemblers();
35}
36
37// only defining the register names / numbers that the unwinder is actually
38// using today
39
40// names should match the constants below. These will be the eRegisterKindLLDB
41// register numbers.
42
43const char *x86_64_reg_names[] = {"rax", "rbx", "rcx", "rdx", "rsp", "rbp",
44 "rsi", "rdi", "r8", "r9", "r10", "r11",
45 "r12", "r13", "r14", "r15", "rip"};
46
47enum x86_64_regs {
48 k_rax = 0,
49 k_rbx = 1,
50 k_rcx = 2,
51 k_rdx = 3,
52 k_rsp = 4,
53 k_rbp = 5,
54 k_rsi = 6,
55 k_rdi = 7,
56 k_r8 = 8,
57 k_r9 = 9,
58 k_r10 = 10,
59 k_r11 = 11,
60 k_r12 = 12,
61 k_r13 = 13,
62 k_r14 = 14,
63 k_r15 = 15,
64 k_rip = 16
65};
66
67std::unique_ptr<x86AssemblyInspectionEngine> Getx86_64Inspector() {
68
69 ArchSpec arch("x86_64-apple-macosx");
70 std::unique_ptr<x86AssemblyInspectionEngine> engine(
71 new x86AssemblyInspectionEngine(arch));
72
73 std::vector<x86AssemblyInspectionEngine::lldb_reg_info> lldb_regnums;
74 int i = 0;
75 for (const auto &name : x86_64_reg_names) {
76 x86AssemblyInspectionEngine::lldb_reg_info ri;
77 ri.name = name;
78 ri.lldb_regnum = i++;
79 lldb_regnums.push_back(x: ri);
80 }
81
82 engine->Initialize(reg_info&: lldb_regnums);
83 return engine;
84}
85
86TEST_F(Testx86AssemblyInspectionEngine, TestSimple64bitFrameFunction) {
87 std::unique_ptr<x86AssemblyInspectionEngine> engine = Getx86_64Inspector();
88
89 // 'int main() { }' compiled for x86_64-apple-macosx with clang
90 uint8_t data[] = {
91 0x55, // offset 0 -- pushq %rbp
92 0x48, 0x89, 0xe5, // offset 1 -- movq %rsp, %rbp
93 0x31, 0xc0, // offset 4 -- xorl %eax, %eax
94 0x5d, // offset 6 -- popq %rbp
95 0xc3 // offset 7 -- retq
96 };
97
98 AddressRange sample_range(0x1000, sizeof(data));
99
100 UnwindPlan unwind_plan(eRegisterKindLLDB);
101 EXPECT_FALSE(engine->GetNonCallSiteUnwindPlanFromAssembly(
102 data, sizeof(data), sample_range, unwind_plan));
103}
104

source code of lldb/unittests/UnwindAssembly/x86-but-no-x86-target/Testx86AssemblyInspectionEngine.cpp