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1 //===-- llvm-mc.cpp - Machine Code Hacking Driver ---------------*- C++ -*-===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 //
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7 //===----------------------------------------------------------------------===//
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8 //
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9 // This utility is a simple driver that allows command line hacking on machine
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10 // code.
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11 //
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12 //===----------------------------------------------------------------------===//
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13
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14 #include "Disassembler.h"
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15 #include "llvm/MC/MCAsmBackend.h"
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16 #include "llvm/MC/MCAsmInfo.h"
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121
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17 #include "llvm/MC/MCCodeEmitter.h"
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18 #include "llvm/MC/MCContext.h"
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19 #include "llvm/MC/MCInstPrinter.h"
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20 #include "llvm/MC/MCInstrInfo.h"
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21 #include "llvm/MC/MCObjectFileInfo.h"
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147
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22 #include "llvm/MC/MCObjectWriter.h"
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23 #include "llvm/MC/MCParser/AsmLexer.h"
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120
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24 #include "llvm/MC/MCParser/MCTargetAsmParser.h"
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25 #include "llvm/MC/MCRegisterInfo.h"
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26 #include "llvm/MC/MCStreamer.h"
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27 #include "llvm/MC/MCSubtargetInfo.h"
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147
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28 #include "llvm/MC/MCTargetOptionsCommandFlags.inc"
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29 #include "llvm/Support/CommandLine.h"
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77
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30 #include "llvm/Support/Compression.h"
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31 #include "llvm/Support/FileUtilities.h"
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32 #include "llvm/Support/FormattedStream.h"
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33 #include "llvm/Support/Host.h"
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147
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34 #include "llvm/Support/InitLLVM.h"
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35 #include "llvm/Support/MemoryBuffer.h"
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36 #include "llvm/Support/SourceMgr.h"
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37 #include "llvm/Support/TargetRegistry.h"
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38 #include "llvm/Support/TargetSelect.h"
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39 #include "llvm/Support/ToolOutputFile.h"
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147
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40 #include "llvm/Support/WithColor.h"
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100
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41
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42 using namespace llvm;
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43
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44 static cl::opt<std::string>
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45 InputFilename(cl::Positional, cl::desc("<input file>"), cl::init("-"));
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46
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47 static cl::opt<std::string> OutputFilename("o", cl::desc("Output filename"),
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48 cl::value_desc("filename"),
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49 cl::init("-"));
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50
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51 static cl::opt<std::string> SplitDwarfFile("split-dwarf-file",
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52 cl::desc("DWO output filename"),
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53 cl::value_desc("filename"));
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54
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55 static cl::opt<bool>
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56 ShowEncoding("show-encoding", cl::desc("Show instruction encodings"));
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57
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120
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58 static cl::opt<bool> RelaxELFRel(
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59 "relax-relocations", cl::init(true),
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60 cl::desc("Emit R_X86_64_GOTPCRELX instead of R_X86_64_GOTPCREL"));
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61
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121
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62 static cl::opt<DebugCompressionType> CompressDebugSections(
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63 "compress-debug-sections", cl::ValueOptional,
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64 cl::init(DebugCompressionType::None),
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65 cl::desc("Choose DWARF debug sections compression:"),
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66 cl::values(clEnumValN(DebugCompressionType::None, "none", "No compression"),
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67 clEnumValN(DebugCompressionType::Z, "zlib",
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68 "Use zlib compression"),
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69 clEnumValN(DebugCompressionType::GNU, "zlib-gnu",
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70 "Use zlib-gnu compression (deprecated)")));
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77
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71
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72 static cl::opt<bool>
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73 ShowInst("show-inst", cl::desc("Show internal instruction representation"));
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74
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75 static cl::opt<bool>
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76 ShowInstOperands("show-inst-operands",
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77 cl::desc("Show instructions operands as parsed"));
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78
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79 static cl::opt<unsigned>
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80 OutputAsmVariant("output-asm-variant",
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81 cl::desc("Syntax variant to use for output printing"));
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82
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83 static cl::opt<bool>
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84 PrintImmHex("print-imm-hex", cl::init(false),
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85 cl::desc("Prefer hex format for immediate values"));
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86
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95
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87 static cl::list<std::string>
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88 DefineSymbol("defsym", cl::desc("Defines a symbol to be an integer constant"));
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89
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90 static cl::opt<bool>
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91 PreserveComments("preserve-comments",
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92 cl::desc("Preserve Comments in outputted assembly"));
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93
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94 enum OutputFileType {
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95 OFT_Null,
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96 OFT_AssemblyFile,
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97 OFT_ObjectFile
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98 };
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99 static cl::opt<OutputFileType>
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100 FileType("filetype", cl::init(OFT_AssemblyFile),
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101 cl::desc("Choose an output file type:"),
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102 cl::values(
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103 clEnumValN(OFT_AssemblyFile, "asm",
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104 "Emit an assembly ('.s') file"),
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105 clEnumValN(OFT_Null, "null",
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106 "Don't emit anything (for timing purposes)"),
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107 clEnumValN(OFT_ObjectFile, "obj",
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120
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108 "Emit a native object ('.o') file")));
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109
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110 static cl::list<std::string>
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111 IncludeDirs("I", cl::desc("Directory of include files"),
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112 cl::value_desc("directory"), cl::Prefix);
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113
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114 static cl::opt<std::string>
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115 ArchName("arch", cl::desc("Target arch to assemble for, "
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116 "see -version for available targets"));
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117
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118 static cl::opt<std::string>
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119 TripleName("triple", cl::desc("Target triple to assemble for, "
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120 "see -version for available targets"));
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121
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122 static cl::opt<std::string>
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123 MCPU("mcpu",
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124 cl::desc("Target a specific cpu type (-mcpu=help for details)"),
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125 cl::value_desc("cpu-name"),
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126 cl::init(""));
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127
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128 static cl::list<std::string>
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129 MAttrs("mattr",
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130 cl::CommaSeparated,
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131 cl::desc("Target specific attributes (-mattr=help for details)"),
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132 cl::value_desc("a1,+a2,-a3,..."));
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133
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120
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134 static cl::opt<bool> PIC("position-independent",
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135 cl::desc("Position independent"), cl::init(false));
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136
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121
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137 static cl::opt<bool>
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138 LargeCodeModel("large-code-model",
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139 cl::desc("Create cfi directives that assume the code might "
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140 "be more than 2gb away"));
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141
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142 static cl::opt<bool>
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143 NoInitialTextSection("n", cl::desc("Don't assume assembly file starts "
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144 "in the text section"));
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145
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146 static cl::opt<bool>
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147 GenDwarfForAssembly("g", cl::desc("Generate dwarf debugging info for assembly "
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148 "source files"));
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149
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150 static cl::opt<std::string>
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151 DebugCompilationDir("fdebug-compilation-dir",
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152 cl::desc("Specifies the debug info's compilation dir"));
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153
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147
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154 static cl::list<std::string>
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155 DebugPrefixMap("fdebug-prefix-map",
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156 cl::desc("Map file source paths in debug info"),
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157 cl::value_desc("= separated key-value pairs"));
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158
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159 static cl::opt<std::string>
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160 MainFileName("main-file-name",
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161 cl::desc("Specifies the name we should consider the input file"));
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162
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77
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163 static cl::opt<bool> SaveTempLabels("save-temp-labels",
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164 cl::desc("Don't discard temporary labels"));
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165
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147
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166 static cl::opt<bool> LexMasmIntegers(
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167 "masm-integers",
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168 cl::desc("Enable binary and hex masm integers (0b110 and 0ABCh)"));
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169
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77
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170 static cl::opt<bool> NoExecStack("no-exec-stack",
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171 cl::desc("File doesn't need an exec stack"));
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172
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173 enum ActionType {
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174 AC_AsLex,
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175 AC_Assemble,
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176 AC_Disassemble,
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177 AC_MDisassemble,
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178 };
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179
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180 static cl::opt<ActionType>
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181 Action(cl::desc("Action to perform:"),
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182 cl::init(AC_Assemble),
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183 cl::values(clEnumValN(AC_AsLex, "as-lex",
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184 "Lex tokens from a .s file"),
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185 clEnumValN(AC_Assemble, "assemble",
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
186 "Assemble a .s file (default)"),
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
187 clEnumValN(AC_Disassemble, "disassemble",
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
188 "Disassemble strings of hex bytes"),
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
189 clEnumValN(AC_MDisassemble, "mdis",
|
|
120
|
190 "Marked up disassembly of strings of hex bytes")));
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
191
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
192 static const Target *GetTarget(const char *ProgName) {
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
193 // Figure out the target triple.
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
194 if (TripleName.empty())
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
195 TripleName = sys::getDefaultTargetTriple();
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
196 Triple TheTriple(Triple::normalize(TripleName));
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
197
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
198 // Get the target specific parser.
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
199 std::string Error;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
200 const Target *TheTarget = TargetRegistry::lookupTarget(ArchName, TheTriple,
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
201 Error);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
202 if (!TheTarget) {
|
|
147
|
203 WithColor::error(errs(), ProgName) << Error;
|
|
77
|
204 return nullptr;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
205 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
206
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
207 // Update the triple name and return the found target.
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
208 TripleName = TheTriple.getTriple();
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
209 return TheTarget;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
210 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
211
|
|
147
|
212 static std::unique_ptr<ToolOutputFile> GetOutputStream(StringRef Path) {
|
|
77
|
213 std::error_code EC;
|
|
147
|
214 auto Out = llvm::make_unique<ToolOutputFile>(Path, EC, sys::fs::OF_None);
|
|
77
|
215 if (EC) {
|
|
147
|
216 WithColor::error() << EC.message() << '\n';
|
|
77
|
217 return nullptr;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
218 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
219
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
220 return Out;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
221 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
222
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
223 static std::string DwarfDebugFlags;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
224 static void setDwarfDebugFlags(int argc, char **argv) {
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
225 if (!getenv("RC_DEBUG_OPTIONS"))
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
226 return;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
227 for (int i = 0; i < argc; i++) {
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
228 DwarfDebugFlags += argv[i];
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
229 if (i + 1 < argc)
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
230 DwarfDebugFlags += " ";
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
231 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
232 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
233
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
234 static std::string DwarfDebugProducer;
|
|
100
|
235 static void setDwarfDebugProducer() {
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
236 if(!getenv("DEBUG_PRODUCER"))
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
237 return;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
238 DwarfDebugProducer += getenv("DEBUG_PRODUCER");
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
239 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
240
|
|
77
|
241 static int AsLexInput(SourceMgr &SrcMgr, MCAsmInfo &MAI,
|
|
83
|
242 raw_ostream &OS) {
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
243
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
244 AsmLexer Lexer(MAI);
|
|
77
|
245 Lexer.setBuffer(SrcMgr.getMemoryBuffer(SrcMgr.getMainFileID())->getBuffer());
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
246
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
247 bool Error = false;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
248 while (Lexer.Lex().isNot(AsmToken::Eof)) {
|
|
147
|
249 Lexer.getTok().dump(OS);
|
|
|
250 OS << "\n";
|
|
|
251 if (Lexer.getTok().getKind() == AsmToken::Error)
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
252 Error = true;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
253 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
254
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
255 return Error;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
256 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
257
|
|
121
|
258 static int fillCommandLineSymbols(MCAsmParser &Parser) {
|
|
|
259 for (auto &I: DefineSymbol) {
|
|
95
|
260 auto Pair = StringRef(I).split('=');
|
|
121
|
261 auto Sym = Pair.first;
|
|
|
262 auto Val = Pair.second;
|
|
|
263
|
|
|
264 if (Sym.empty() || Val.empty()) {
|
|
147
|
265 WithColor::error() << "defsym must be of the form: sym=value: " << I
|
|
|
266 << "\n";
|
|
95
|
267 return 1;
|
|
|
268 }
|
|
|
269 int64_t Value;
|
|
121
|
270 if (Val.getAsInteger(0, Value)) {
|
|
147
|
271 WithColor::error() << "value is not an integer: " << Val << "\n";
|
|
95
|
272 return 1;
|
|
|
273 }
|
|
121
|
274 Parser.getContext().setSymbolValue(Parser.getStreamer(), Sym, Value);
|
|
95
|
275 }
|
|
|
276 return 0;
|
|
|
277 }
|
|
|
278
|
|
77
|
279 static int AssembleInput(const char *ProgName, const Target *TheTarget,
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
280 SourceMgr &SrcMgr, MCContext &Ctx, MCStreamer &Str,
|
|
77
|
281 MCAsmInfo &MAI, MCSubtargetInfo &STI,
|
|
147
|
282 MCInstrInfo &MCII, MCTargetOptions const &MCOptions) {
|
|
77
|
283 std::unique_ptr<MCAsmParser> Parser(
|
|
|
284 createMCAsmParser(SrcMgr, Ctx, Str, MAI));
|
|
|
285 std::unique_ptr<MCTargetAsmParser> TAP(
|
|
|
286 TheTarget->createMCAsmParser(STI, *Parser, MCII, MCOptions));
|
|
|
287
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
288 if (!TAP) {
|
|
147
|
289 WithColor::error(errs(), ProgName)
|
|
|
290 << "this target does not support assembly parsing.\n";
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
291 return 1;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
292 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
293
|
|
95
|
294 int SymbolResult = fillCommandLineSymbols(*Parser);
|
|
|
295 if(SymbolResult)
|
|
|
296 return SymbolResult;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
297 Parser->setShowParsedOperands(ShowInstOperands);
|
|
83
|
298 Parser->setTargetParser(*TAP);
|
|
147
|
299 Parser->getLexer().setLexMasmIntegers(LexMasmIntegers);
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
300
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
301 int Res = Parser->Run(NoInitialTextSection);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
302
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
303 return Res;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
304 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
305
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
306 int main(int argc, char **argv) {
|
|
147
|
307 InitLLVM X(argc, argv);
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
308
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
309 // Initialize targets and assembly printers/parsers.
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
310 llvm::InitializeAllTargetInfos();
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
311 llvm::InitializeAllTargetMCs();
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
312 llvm::InitializeAllAsmParsers();
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
313 llvm::InitializeAllDisassemblers();
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
314
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
315 // Register the target printer for --version.
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
316 cl::AddExtraVersionPrinter(TargetRegistry::printRegisteredTargetsForVersion);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
317
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
318 cl::ParseCommandLineOptions(argc, argv, "llvm machine code playground\n");
|
|
147
|
319 const MCTargetOptions MCOptions = InitMCTargetOptionsFromFlags();
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
320 setDwarfDebugFlags(argc, argv);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
321
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
322 setDwarfDebugProducer();
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
323
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
324 const char *ProgName = argv[0];
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
325 const Target *TheTarget = GetTarget(ProgName);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
326 if (!TheTarget)
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
327 return 1;
|
|
95
|
328 // Now that GetTarget() has (potentially) replaced TripleName, it's safe to
|
|
|
329 // construct the Triple object.
|
|
|
330 Triple TheTriple(TripleName);
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
331
|
|
77
|
332 ErrorOr<std::unique_ptr<MemoryBuffer>> BufferPtr =
|
|
|
333 MemoryBuffer::getFileOrSTDIN(InputFilename);
|
|
|
334 if (std::error_code EC = BufferPtr.getError()) {
|
|
147
|
335 WithColor::error(errs(), ProgName)
|
|
|
336 << InputFilename << ": " << EC.message() << '\n';
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
337 return 1;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
338 }
|
|
77
|
339 MemoryBuffer *Buffer = BufferPtr->get();
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
340
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
341 SourceMgr SrcMgr;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
342
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
343 // Tell SrcMgr about this buffer, which is what the parser will pick up.
|
|
77
|
344 SrcMgr.AddNewSourceBuffer(std::move(*BufferPtr), SMLoc());
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
345
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
346 // Record the location of the include directories so that the lexer can find
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
347 // it later.
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
348 SrcMgr.setIncludeDirs(IncludeDirs);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
349
|
|
77
|
350 std::unique_ptr<MCRegisterInfo> MRI(TheTarget->createMCRegInfo(TripleName));
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
351 assert(MRI && "Unable to create target register info!");
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
352
|
|
77
|
353 std::unique_ptr<MCAsmInfo> MAI(TheTarget->createMCAsmInfo(*MRI, TripleName));
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
354 assert(MAI && "Unable to create target asm info!");
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
355
|
|
120
|
356 MAI->setRelaxELFRelocations(RelaxELFRel);
|
|
|
357
|
|
121
|
358 if (CompressDebugSections != DebugCompressionType::None) {
|
|
77
|
359 if (!zlib::isAvailable()) {
|
|
147
|
360 WithColor::error(errs(), ProgName)
|
|
|
361 << "build tools with zlib to enable -compress-debug-sections";
|
|
77
|
362 return 1;
|
|
|
363 }
|
|
120
|
364 MAI->setCompressDebugSections(CompressDebugSections);
|
|
77
|
365 }
|
|
120
|
366 MAI->setPreserveAsmComments(PreserveComments);
|
|
77
|
367
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
368 // FIXME: This is not pretty. MCContext has a ptr to MCObjectFileInfo and
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
369 // MCObjectFileInfo needs a MCContext reference in order to initialize itself.
|
|
77
|
370 MCObjectFileInfo MOFI;
|
|
147
|
371 MCContext Ctx(MAI.get(), MRI.get(), &MOFI, &SrcMgr, &MCOptions);
|
|
121
|
372 MOFI.InitMCObjectFileInfo(TheTriple, PIC, Ctx, LargeCodeModel);
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
373
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
374 if (SaveTempLabels)
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
375 Ctx.setAllowTemporaryLabels(false);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
376
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
377 Ctx.setGenDwarfForAssembly(GenDwarfForAssembly);
|
|
77
|
378 // Default to 4 for dwarf version.
|
|
|
379 unsigned DwarfVersion = MCOptions.DwarfVersion ? MCOptions.DwarfVersion : 4;
|
|
121
|
380 if (DwarfVersion < 2 || DwarfVersion > 5) {
|
|
77
|
381 errs() << ProgName << ": Dwarf version " << DwarfVersion
|
|
|
382 << " is not supported." << '\n';
|
|
|
383 return 1;
|
|
|
384 }
|
|
|
385 Ctx.setDwarfVersion(DwarfVersion);
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
386 if (!DwarfDebugFlags.empty())
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
387 Ctx.setDwarfDebugFlags(StringRef(DwarfDebugFlags));
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
388 if (!DwarfDebugProducer.empty())
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
389 Ctx.setDwarfDebugProducer(StringRef(DwarfDebugProducer));
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
390 if (!DebugCompilationDir.empty())
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
391 Ctx.setCompilationDir(DebugCompilationDir);
|
|
120
|
392 else {
|
|
|
393 // If no compilation dir is set, try to use the current directory.
|
|
|
394 SmallString<128> CWD;
|
|
|
395 if (!sys::fs::current_path(CWD))
|
|
|
396 Ctx.setCompilationDir(CWD);
|
|
|
397 }
|
|
147
|
398 for (const auto &Arg : DebugPrefixMap) {
|
|
|
399 const auto &KV = StringRef(Arg).split('=');
|
|
|
400 Ctx.addDebugPrefixMapEntry(KV.first, KV.second);
|
|
|
401 }
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
402 if (!MainFileName.empty())
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
403 Ctx.setMainFileName(MainFileName);
|
|
147
|
404 if (GenDwarfForAssembly)
|
|
|
405 Ctx.setGenDwarfRootFile(InputFilename, Buffer->getBuffer());
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
406
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
407 // Package up features to be passed to target/subtarget
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
408 std::string FeaturesStr;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
409 if (MAttrs.size()) {
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
410 SubtargetFeatures Features;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
411 for (unsigned i = 0; i != MAttrs.size(); ++i)
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
412 Features.AddFeature(MAttrs[i]);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
413 FeaturesStr = Features.getString();
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
414 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
415
|
|
147
|
416 std::unique_ptr<ToolOutputFile> Out = GetOutputStream(OutputFilename);
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
417 if (!Out)
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
418 return 1;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
419
|
|
147
|
420 std::unique_ptr<ToolOutputFile> DwoOut;
|
|
|
421 if (!SplitDwarfFile.empty()) {
|
|
|
422 if (FileType != OFT_ObjectFile) {
|
|
|
423 WithColor::error() << "dwo output only supported with object files\n";
|
|
|
424 return 1;
|
|
|
425 }
|
|
|
426 DwoOut = GetOutputStream(SplitDwarfFile);
|
|
|
427 if (!DwoOut)
|
|
|
428 return 1;
|
|
|
429 }
|
|
|
430
|
|
95
|
431 std::unique_ptr<buffer_ostream> BOS;
|
|
|
432 raw_pwrite_stream *OS = &Out->os();
|
|
77
|
433 std::unique_ptr<MCStreamer> Str;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
434
|
|
77
|
435 std::unique_ptr<MCInstrInfo> MCII(TheTarget->createMCInstrInfo());
|
|
|
436 std::unique_ptr<MCSubtargetInfo> STI(
|
|
|
437 TheTarget->createMCSubtargetInfo(TripleName, MCPU, FeaturesStr));
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
438
|
|
77
|
439 MCInstPrinter *IP = nullptr;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
440 if (FileType == OFT_AssemblyFile) {
|
|
95
|
441 IP = TheTarget->createMCInstPrinter(Triple(TripleName), OutputAsmVariant,
|
|
|
442 *MAI, *MCII, *MRI);
|
|
77
|
443
|
|
120
|
444 if (!IP) {
|
|
147
|
445 WithColor::error()
|
|
|
446 << "unable to create instruction printer for target triple '"
|
|
120
|
447 << TheTriple.normalize() << "' with assembly variant "
|
|
|
448 << OutputAsmVariant << ".\n";
|
|
|
449 return 1;
|
|
|
450 }
|
|
|
451
|
|
77
|
452 // Set the display preference for hex vs. decimal immediates.
|
|
|
453 IP->setPrintImmHex(PrintImmHex);
|
|
|
454
|
|
|
455 // Set up the AsmStreamer.
|
|
147
|
456 std::unique_ptr<MCCodeEmitter> CE;
|
|
|
457 if (ShowEncoding)
|
|
|
458 CE.reset(TheTarget->createMCCodeEmitter(*MCII, *MRI, Ctx));
|
|
|
459
|
|
|
460 std::unique_ptr<MCAsmBackend> MAB(
|
|
|
461 TheTarget->createMCAsmBackend(*STI, *MRI, MCOptions));
|
|
95
|
462 auto FOut = llvm::make_unique<formatted_raw_ostream>(*OS);
|
|
147
|
463 Str.reset(
|
|
|
464 TheTarget->createAsmStreamer(Ctx, std::move(FOut), /*asmverbose*/ true,
|
|
|
465 /*useDwarfDirectory*/ true, IP,
|
|
|
466 std::move(CE), std::move(MAB), ShowInst));
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
467
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
468 } else if (FileType == OFT_Null) {
|
|
95
|
469 Str.reset(TheTarget->createNullStreamer(Ctx));
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
470 } else {
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
471 assert(FileType == OFT_ObjectFile && "Invalid file type!");
|
|
95
|
472
|
|
|
473 // Don't waste memory on names of temp labels.
|
|
|
474 Ctx.setUseNamesOnTempLabels(false);
|
|
|
475
|
|
|
476 if (!Out->os().supportsSeeking()) {
|
|
|
477 BOS = make_unique<buffer_ostream>(Out->os());
|
|
|
478 OS = BOS.get();
|
|
|
479 }
|
|
|
480
|
|
|
481 MCCodeEmitter *CE = TheTarget->createMCCodeEmitter(*MCII, *MRI, Ctx);
|
|
134
|
482 MCAsmBackend *MAB = TheTarget->createMCAsmBackend(*STI, *MRI, MCOptions);
|
|
100
|
483 Str.reset(TheTarget->createMCObjectStreamer(
|
|
147
|
484 TheTriple, Ctx, std::unique_ptr<MCAsmBackend>(MAB),
|
|
|
485 DwoOut ? MAB->createDwoObjectWriter(*OS, DwoOut->os())
|
|
|
486 : MAB->createObjectWriter(*OS),
|
|
121
|
487 std::unique_ptr<MCCodeEmitter>(CE), *STI, MCOptions.MCRelaxAll,
|
|
100
|
488 MCOptions.MCIncrementalLinkerCompatible,
|
|
|
489 /*DWARFMustBeAtTheEnd*/ false));
|
|
83
|
490 if (NoExecStack)
|
|
|
491 Str->InitSections(true);
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
492 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
493
|
|
147
|
494 // Use Assembler information for parsing.
|
|
|
495 Str->setUseAssemblerInfoForParsing(true);
|
|
|
496
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
497 int Res = 1;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
498 bool disassemble = false;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
499 switch (Action) {
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
500 case AC_AsLex:
|
|
83
|
501 Res = AsLexInput(SrcMgr, *MAI, Out->os());
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
502 break;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
503 case AC_Assemble:
|
|
77
|
504 Res = AssembleInput(ProgName, TheTarget, SrcMgr, Ctx, *Str, *MAI, *STI,
|
|
|
505 *MCII, MCOptions);
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
506 break;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
507 case AC_MDisassemble:
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
508 assert(IP && "Expected assembly output");
|
|
147
|
509 IP->setUseMarkup(true);
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
510 disassemble = true;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
511 break;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
512 case AC_Disassemble:
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
513 disassemble = true;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
514 break;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
515 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
516 if (disassemble)
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
517 Res = Disassembler::disassemble(*TheTarget, TripleName, *STI, *Str,
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
518 *Buffer, SrcMgr, Out->os());
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
519
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
520 // Keep output if no errors.
|
|
147
|
521 if (Res == 0) {
|
|
|
522 Out->keep();
|
|
|
523 if (DwoOut)
|
|
|
524 DwoOut->keep();
|
|
|
525 }
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
526 return Res;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
527 }
|
