lldb/unittests/Disassembler/x86/TestGetControlFlowKindx86.cpp

   1 //===-- TextX86GetControlFlowKind.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 "llvm/Support/TargetSelect.h"
  11 #include "gtest/gtest.h"
  12
  13 #include "lldb/Core/Address.h"
  14 #include "lldb/Core/Disassembler.h"
  15 #include "lldb/Target/ExecutionContext.h"
  16 #include "lldb/Utility/ArchSpec.h"
  17
  18 #include "Plugins/Disassembler/LLVMC/DisassemblerLLVMC.h"
  19
  20 using namespace lldb;
  21 using namespace lldb_private;
  22
  23 class TestGetControlFlowKindx86 : public testing::Test {
  24 public:
  25   static void SetUpTestCase();
  26   static void TearDownTestCase();
  27
  28 protected:
  29 };
  30
  31 void TestGetControlFlowKindx86::SetUpTestCase() {
  32   llvm::InitializeAllTargets();
  33   llvm::InitializeAllAsmPrinters();
  34   llvm::InitializeAllTargetMCs();
  35   llvm::InitializeAllDisassemblers();
  36   DisassemblerLLVMC::Initialize();
  37 }
  38
  39 void TestGetControlFlowKindx86::TearDownTestCase() {
  40   DisassemblerLLVMC::Terminate();
  41 }
  42
  43 TEST_F(TestGetControlFlowKindx86, TestX86_64Instruction) {
  44   ArchSpec arch("x86_64-*-linux");
  45
  46   const unsigned num_of_instructions = 29;
  47   uint8_t data[] = {
  48       0x55,                               // other -- pushq %rbp
  49       0x48, 0x89, 0xe5,                   // other -- movq %rsp, %rbp
  50
  51       0xe8, 0xfc, 0xfe, 0xff, 0xff,       // call -- callq 0x4004c0
  52       0x41, 0xff, 0x14, 0xdc,             // call -- callq *(%r12,%rbx,8)
  53       0xff, 0x50, 0x18,                   // call -- callq *0x18(%rax)
  54       0xe8, 0x48, 0x0d, 0x00, 0x00,       // call -- callq 0x94fe0
  55
  56       0xc3,                               // return -- retq
  57
  58       0xeb, 0xd3,                         // jump -- jmp 0x92dab
  59       0xe9, 0x22, 0xff, 0xff, 0xff,       // jump -- jmp 0x933ae
  60       0xff, 0xe0,                         // jump -- jmpq *%rax
  61       0xf2, 0xff, 0x25, 0x75, 0xe7, 0x39, 0x00, // jump -- repne jmpq *0x39e775
  62
  63       0x73, 0xc2,                         // cond jump -- jae 0x9515c
  64       0x74, 0x1f,                         // cond jump -- je 0x400626
  65       0x75, 0xea,                         // cond jump -- jne 0x400610
  66       0x76, 0x10,                         // cond jump -- jbe 0x94d10
  67       0x77, 0x58,                         // cond jump -- ja 0x1208c8
  68       0x7e, 0x67,                         // cond jump -- jle 0x92180
  69       0x78, 0x0b,                         // cond jump -- js 0x92dc3
  70       0x0f, 0x82, 0x17, 0x01, 0x00, 0x00, // cond jump -- jb 0x9c7b0
  71       0x0f, 0x83, 0xa7, 0x00, 0x00, 0x00, // cond jump -- jae 0x895c8
  72       0x0f, 0x84, 0x8c, 0x00, 0x00, 0x00, // cond jump -- je 0x941f0
  73       0x0f, 0x85, 0x51, 0xff, 0xff, 0xff, // cond jump -- jne 0x8952c
  74       0x0f, 0x86, 0xa3, 0x02, 0x00, 0x00, // cond jump -- jbe 0x9ae10
  75       0x0f, 0x87, 0xff, 0x00, 0x00, 0x00, // cond jump -- ja 0x9ab60
  76       0x0f, 0x8e, 0x7e, 0x00, 0x00, 0x00, // cond jump -- jle 0x92dd8
  77       0x0f, 0x86, 0xdf, 0x00, 0x00, 0x00, // cond jump -- jbe 0x921b0
  78
  79       0x0f, 0x05,                         // far call -- syscall
  80
  81       0x0f, 0x07,                         // far return -- sysret
  82       0xcf,                               // far return -- interrupt ret
  83   };
  84
  85   InstructionControlFlowKind result[] = {
  86       eInstructionControlFlowKindOther,
  87       eInstructionControlFlowKindOther,
  88
  89       eInstructionControlFlowKindCall,
  90       eInstructionControlFlowKindCall,
  91       eInstructionControlFlowKindCall,
  92       eInstructionControlFlowKindCall,
  93
  94       eInstructionControlFlowKindReturn,
  95
  96       eInstructionControlFlowKindJump,
  97       eInstructionControlFlowKindJump,
  98       eInstructionControlFlowKindJump,
  99       eInstructionControlFlowKindJump,
 100
 101       eInstructionControlFlowKindCondJump,
 102       eInstructionControlFlowKindCondJump,
 103       eInstructionControlFlowKindCondJump,
 104       eInstructionControlFlowKindCondJump,
 105       eInstructionControlFlowKindCondJump,
 106       eInstructionControlFlowKindCondJump,
 107       eInstructionControlFlowKindCondJump,
 108       eInstructionControlFlowKindCondJump,
 109       eInstructionControlFlowKindCondJump,
 110       eInstructionControlFlowKindCondJump,
 111       eInstructionControlFlowKindCondJump,
 112       eInstructionControlFlowKindCondJump,
 113       eInstructionControlFlowKindCondJump,
 114       eInstructionControlFlowKindCondJump,
 115       eInstructionControlFlowKindCondJump,
 116
 117       eInstructionControlFlowKindFarCall,
 118
 119       eInstructionControlFlowKindFarReturn,
 120       eInstructionControlFlowKindFarReturn,
 121   };
 122
 123   DisassemblerSP disass_sp;
 124   Address start_addr(0x100);
 125   disass_sp =
 126       Disassembler::DisassembleBytes(arch, nullptr, nullptr, start_addr, &data,
 127                                     sizeof (data), num_of_instructions, false);
 128
 129   // If we failed to get a disassembler, we can assume it is because
 130   // the llvm we linked against was not built with the i386 target,
 131   // and we should skip these tests without marking anything as failing.
 132
 133   if (disass_sp) {
 134     const InstructionList inst_list(disass_sp->GetInstructionList());
 135     EXPECT_EQ(num_of_instructions, inst_list.GetSize());
 136
 137     for (size_t i = 0; i < num_of_instructions; ++i) {
 138       InstructionSP inst_sp;
 139       inst_sp = inst_list.GetInstructionAtIndex(i);
 140       ExecutionContext exe_ctx (nullptr, nullptr, nullptr);
 141       InstructionControlFlowKind kind = inst_sp->GetControlFlowKind(&exe_ctx);
 142       EXPECT_EQ(kind, result[i]);
 143     }
 144   }
 145 }