1 | //
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2 | // Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
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3 | //
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4 | // The contents of this file are covered under the licence agreement in the
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5 | // file "LICENCE" distributed with Cforall.
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6 | //
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7 | // main.cc --
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8 | //
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9 | // Author : Peter Buhr and Rob Schluntz
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10 | // Created On : Fri May 15 23:12:02 2015
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11 | // Last Modified By : Andrew Beach
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12 | // Last Modified On : Thr Feb 16 10:08:00 2023
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13 | // Update Count : 680
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14 | //
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15 |
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16 | #include <cxxabi.h> // for __cxa_demangle
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17 | #include <execinfo.h> // for backtrace, backtrace_symbols
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18 | #include <getopt.h> // for no_argument, optind, geto...
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19 | #include <cassert> // for assertf
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20 | #include <cstdio> // for fopen, FILE, fclose, stdin
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21 | #include <cstdlib> // for exit, free, abort, EXIT_F...
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22 | #include <csignal> // for signal, SIGABRT, SIGSEGV
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23 | #include <cstring> // for index
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24 | #include <fstream> // for ofstream
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25 | #include <iostream> // for operator<<, basic_ostream
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26 | #include <iomanip>
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27 | #include <iterator> // for back_inserter
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28 | #include <list> // for list
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29 | #include <string> // for char_traits, operator<<
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30 |
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31 | using namespace std;
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32 |
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33 | #include "AST/Convert.hpp"
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34 | #include "CompilationState.h"
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35 | #include "../config.h" // for CFA_LIBDIR
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36 | #include "CodeGen/FixMain.h" // for FixMain
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37 | #include "CodeGen/FixNames.h" // for fixNames
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38 | #include "CodeGen/Generate.h" // for generate
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39 | #include "CodeGen/LinkOnce.h" // for translateLinkOnce
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40 | #include "CodeTools/TrackLoc.h" // for fillLocations
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41 | #include "Common/CodeLocationTools.hpp" // for forceFillCodeLocations
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42 | #include "Common/DeclStats.hpp" // for printDeclStats
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43 | #include "Common/ResolvProtoDump.hpp" // for dumpAsResolverProto
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44 | #include "Common/Stats.h" // for Stats
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45 | #include "Common/utility.h" // for deleteAll, filter, printAll
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46 | #include "Concurrency/Actors.hpp" // for implementActors
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47 | #include "Concurrency/Keywords.h" // for implementMutex, implement...
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48 | #include "Concurrency/Waitfor.h" // for generateWaitfor
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49 | #include "ControlStruct/ExceptDecl.h" // for translateExcept
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50 | #include "ControlStruct/ExceptTranslate.h" // for translateThrows, translat...
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51 | #include "ControlStruct/FixLabels.hpp" // for fixLabels
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52 | #include "ControlStruct/HoistControlDecls.hpp" // hoistControlDecls
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53 | #include "GenPoly/Box.h" // for box
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54 | #include "GenPoly/InstantiateGeneric.h" // for instantiateGeneric
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55 | #include "GenPoly/Lvalue.h" // for convertLvalue
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56 | #include "GenPoly/Specialize.h" // for convertSpecializations
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57 | #include "InitTweak/FixInit.h" // for fix
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58 | #include "InitTweak/GenInit.h" // for genInit
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59 | #include "MakeLibCfa.h" // for makeLibCfa
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60 | #include "Parser/RunParser.hpp" // for buildList, dumpParseTree,...
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61 | #include "ResolvExpr/CandidatePrinter.hpp" // for printCandidates
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62 | #include "ResolvExpr/Resolver.h" // for resolve
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63 | #include "SynTree/LinkageSpec.h" // for Spec, Cforall, Intrinsic
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64 | #include "SynTree/Declaration.h" // for Declaration
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65 | #include "Tuples/Tuples.h" // for expandMemberTuples, expan...
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66 | #include "Validate/Autogen.hpp" // for autogenerateRoutines
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67 | #include "Validate/CompoundLiteral.hpp" // for handleCompoundLiterals
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68 | #include "Validate/EliminateTypedef.hpp" // for eliminateTypedef
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69 | #include "Validate/EnumAndPointerDecay.hpp" // for decayEnumsAndPointers
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70 | #include "Validate/FindSpecialDecls.h" // for findGlobalDecls
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71 | #include "Validate/FixQualifiedTypes.hpp" // for fixQualifiedTypes
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72 | #include "Validate/FixReturnTypes.hpp" // for fixReturnTypes
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73 | #include "Validate/ForallPointerDecay.hpp" // for decayForallPointers
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74 | #include "Validate/GenericParameter.hpp" // for fillGenericParameters, tr...
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75 | #include "Validate/HoistStruct.hpp" // for hoistStruct
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76 | #include "Validate/HoistTypeDecls.hpp" // for hoistTypeDecls
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77 | #include "Validate/InitializerLength.hpp" // for setLengthFromInitializer
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78 | #include "Validate/LabelAddressFixer.hpp" // for fixLabelAddresses
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79 | #include "Validate/LinkReferenceToTypes.hpp" // for linkReferenceToTypes
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80 | #include "Validate/ReplaceTypedef.hpp" // for replaceTypedef
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81 | #include "Validate/ReturnCheck.hpp" // for checkReturnStatements
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82 | #include "Validate/VerifyCtorDtorAssign.hpp" // for verifyCtorDtorAssign
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83 | #include "Virtual/ExpandCasts.h" // for expandCasts
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84 | #include "Virtual/VirtualDtor.hpp" // for implementVirtDtors
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85 |
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86 | static void NewPass( const char * const name ) {
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87 | Stats::Heap::newPass( name );
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88 | using namespace Stats::Counters;
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89 | {
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90 | static auto group = build<CounterGroup>( "Pass Visitor" );
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91 | auto pass = build<CounterGroup>( name, group );
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92 | pass_visitor_stats.depth = 0;
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93 | pass_visitor_stats.avg = build<AverageCounter<double>>( "Average Depth", pass );
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94 | pass_visitor_stats.max = build<MaxCounter<double>>( "Max Depth", pass );
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95 | }
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96 | {
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97 | static auto group = build<CounterGroup>( "Syntax Node" );
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98 | auto pass = build<CounterGroup>( name, group );
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99 | BaseSyntaxNode::new_nodes = build<SimpleCounter>( "Allocs", pass );
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100 | }
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101 | }
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102 |
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103 | #define PASS( name, pass ) \
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104 | if ( errorp ) { cerr << name << endl; } \
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105 | NewPass(name); \
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106 | Stats::Time::StartBlock(name); \
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107 | pass; \
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108 | Stats::Time::StopBlock();
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109 |
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110 | static bool waiting_for_gdb = false; // flag to set cfa-cpp to wait for gdb on start
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111 |
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112 | static string PreludeDirector = "";
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113 |
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114 | static void parse_cmdline( int argc, char * argv[] );
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115 | static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
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116 | static void dump( ast::TranslationUnit && transUnit, ostream & out = cout );
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117 |
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118 | static void backtrace( int start ) { // skip first N stack frames
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119 | enum { Frames = 50, }; // maximum number of stack frames
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120 | void * array[Frames];
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121 | size_t size = ::backtrace( array, Frames );
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122 | char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
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123 |
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124 | *index( messages[0], '(' ) = '\0'; // find executable name
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125 | cerr << "Stack back trace for: " << messages[0] << endl;
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126 |
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127 | // skip last 2 stack frames after main
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128 | for ( unsigned int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
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129 | char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
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130 |
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131 | for ( char * p = messages[i]; *p; p += 1 ) { // find parantheses and +offset
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132 | if ( *p == '(' ) {
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133 | mangled_name = p;
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134 | } else if ( *p == '+' ) {
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135 | offset_begin = p;
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136 | } else if ( *p == ')' ) {
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137 | offset_end = p;
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138 | break;
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139 | } // if
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140 | } // for
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141 |
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142 | // if line contains symbol, attempt to demangle
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143 | int frameNo = i - start;
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144 | if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
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145 | *mangled_name++ = '\0'; // delimit strings
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146 | *offset_begin++ = '\0';
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147 | *offset_end++ = '\0';
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148 |
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149 | int status;
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150 | char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
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151 | // bug in __cxa_demangle for single-character lower-case non-mangled names
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152 | if ( status == 0 ) { // demangling successful ?
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153 | cerr << "(" << frameNo << ") " << messages[i] << " : "
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154 | << real_name << "+" << offset_begin << offset_end << endl;
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155 | } else { // otherwise, output mangled name
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156 | cerr << "(" << frameNo << ") " << messages[i] << " : "
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157 | << mangled_name << "(/*unknown*/)+" << offset_begin << offset_end << endl;
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158 | } // if
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159 |
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160 | free( real_name );
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161 | } else { // otherwise, print the whole line
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162 | cerr << "(" << frameNo << ") " << messages[i] << endl;
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163 | } // if
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164 | } // for
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165 |
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166 | free( messages );
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167 | } // backtrace
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168 |
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169 | #define SIGPARMS int sig __attribute__(( unused )), siginfo_t * sfp __attribute__(( unused )), ucontext_t * cxt __attribute__(( unused ))
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170 |
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171 | static void _Signal(struct sigaction & act, int sig, int flags ) {
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172 | act.sa_flags = flags;
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173 |
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174 | if ( sigaction( sig, &act, nullptr ) == -1 ) {
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175 | cerr << "*cfa-cpp compilation error* problem installing signal handler, error(" << errno << ") " << strerror( errno ) << endl;
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176 | _exit( EXIT_FAILURE );
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177 | } // if
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178 | }
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179 |
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180 | static void Signal( int sig, void (* handler)(SIGPARMS), int flags ) {
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181 | struct sigaction act;
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182 | act.sa_sigaction = (void (*)(int, siginfo_t *, void *))handler;
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183 | _Signal(act, sig, flags);
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184 | } // Signal
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185 |
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186 | static void Signal( int sig, void (* handler)(int), int flags ) {
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187 | struct sigaction act;
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188 | act.sa_handler = handler;
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189 | _Signal(act, sig, flags);
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190 | } // Signal
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191 |
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192 | static void sigSegvBusHandler( SIGPARMS ) {
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193 | if ( sfp->si_addr == nullptr ) {
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194 | cerr << "Null pointer (nullptr) dereference." << endl;
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195 | } else {
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196 | cerr << (sig == SIGSEGV ? "Segment fault" : "Bus error") << " at memory location " << sfp->si_addr << "." << endl
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197 | << "Possible cause is reading outside the address space or writing to a protected area within the address space with an invalid pointer or subscript." << endl;
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198 | } // if
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199 | backtrace( 2 ); // skip first 2 stack frames
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200 | abort(); // cause core dump for debugging
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201 | } // sigSegvBusHandler
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202 |
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203 | static void sigFpeHandler( SIGPARMS ) {
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204 | const char * msg;
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205 |
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206 | switch ( sfp->si_code ) {
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207 | case FPE_INTDIV: case FPE_FLTDIV: msg = "divide by zero"; break;
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208 | case FPE_FLTOVF: msg = "overflow"; break;
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209 | case FPE_FLTUND: msg = "underflow"; break;
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210 | case FPE_FLTRES: msg = "inexact result"; break;
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211 | case FPE_FLTINV: msg = "invalid operation"; break;
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212 | default: msg = "unknown";
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213 | } // choose
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214 | cerr << "Computation error " << msg << " at location " << sfp->si_addr << endl
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215 | << "Possible cause is constant-expression evaluation invalid." << endl;
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216 | backtrace( 2 ); // skip first 2 stack frames
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217 | abort(); // cause core dump for debugging
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218 | } // sigFpeHandler
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219 |
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220 | static void sigAbortHandler( SIGPARMS ) {
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221 | backtrace( 6 ); // skip first 6 stack frames
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222 | Signal( SIGABRT, SIG_DFL, SA_SIGINFO ); // reset default signal handler
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223 | raise( SIGABRT ); // reraise SIGABRT
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224 | } // sigAbortHandler
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225 |
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226 | int main( int argc, char * argv[] ) {
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227 | FILE * input; // use FILE rather than istream because yyin is FILE
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228 | ostream * output = & cout;
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229 | list< Declaration * > translationUnit;
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230 | ast::TranslationUnit transUnit;
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231 |
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232 | Signal( SIGSEGV, sigSegvBusHandler, SA_SIGINFO );
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233 | Signal( SIGBUS, sigSegvBusHandler, SA_SIGINFO );
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234 | Signal( SIGFPE, sigFpeHandler, SA_SIGINFO );
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235 | Signal( SIGABRT, sigAbortHandler, SA_SIGINFO );
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236 |
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237 | // cout << "main" << endl;
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238 | // for ( int i = 0; i < argc; i += 1 ) {
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239 | // cout << '\t' << argv[i] << endl;
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240 | // } // for
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241 |
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242 | parse_cmdline( argc, argv ); // process command-line arguments
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243 | CodeGen::FixMain::setReplaceMain( !nomainp );
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244 |
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245 | if ( waiting_for_gdb ) {
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246 | cerr << "Waiting for gdb" << endl;
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247 | cerr << "run :" << endl;
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248 | cerr << " gdb attach " << getpid() << endl;
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249 | raise(SIGSTOP);
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250 | } // if
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251 |
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252 | try {
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253 | // choose to read the program from a file or stdin
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254 | if ( optind < argc ) { // any commands after the flags ? => input file name
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255 | input = fopen( argv[ optind ], "r" );
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256 | assertf( input, "cannot open %s because %s\n", argv[ optind ], strerror( errno ) );
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257 | optind += 1;
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258 | } else { // no input file name
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259 | input = stdin;
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260 | } // if
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261 |
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262 | Stats::Time::StartGlobal();
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263 | NewPass("Parse");
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264 | Stats::Time::StartBlock("Parse");
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265 |
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266 | // read in the builtins, extras, and the prelude
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267 | if ( ! nopreludep ) { // include gcc builtins
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268 | // -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
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269 |
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270 | assertf( !PreludeDirector.empty(), "Can't find prelude without option --prelude-dir must be used." );
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271 |
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272 | // Read to gcc builtins, if not generating the cfa library
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273 | FILE * gcc_builtins = fopen( (PreludeDirector + "/gcc-builtins.cf").c_str(), "r" );
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274 | assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" );
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275 | parse( gcc_builtins, ast::Linkage::Compiler );
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276 |
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277 | // read the extra prelude in, if not generating the cfa library
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278 | FILE * extras = fopen( (PreludeDirector + "/extras.cf").c_str(), "r" );
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279 | assertf( extras, "cannot open extras.cf\n" );
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280 | parse( extras, ast::Linkage::BuiltinC );
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281 |
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282 | if ( ! libcfap ) {
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283 | // read the prelude in, if not generating the cfa library
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284 | FILE * prelude = fopen( (PreludeDirector + "/prelude.cfa").c_str(), "r" );
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285 | assertf( prelude, "cannot open prelude.cfa\n" );
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286 | parse( prelude, ast::Linkage::Intrinsic );
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287 |
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288 | // Read to cfa builtins, if not generating the cfa library
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289 | FILE * builtins = fopen( (PreludeDirector + "/builtins.cf").c_str(), "r" );
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290 | assertf( builtins, "cannot open builtins.cf\n" );
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291 | parse( builtins, ast::Linkage::BuiltinCFA );
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292 | } // if
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293 | } // if
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294 |
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295 | parse( input, libcfap ? ast::Linkage::Intrinsic : ast::Linkage::Cforall, yydebug );
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296 |
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297 | transUnit = buildUnit();
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298 |
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299 | if ( astp ) {
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300 | dump( std::move( transUnit ) );
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301 | return EXIT_SUCCESS;
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302 | } // if
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303 |
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304 | Stats::Time::StopBlock();
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305 |
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306 | if (Stats::Counters::enabled) {
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307 | ast::pass_visitor_stats.avg = Stats::Counters::build<Stats::Counters::AverageCounter<double>>("Average Depth - New");
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308 | ast::pass_visitor_stats.max = Stats::Counters::build<Stats::Counters::MaxCounter<double>>("Max depth - New");
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309 | }
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310 |
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311 | PASS( "Hoist Type Decls", Validate::hoistTypeDecls( transUnit ) );
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312 | // Hoist Type Decls pulls some declarations out of contexts where
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313 | // locations are not tracked. Perhaps they should be, but for now
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314 | // the full fill solves it.
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315 | forceFillCodeLocations( transUnit );
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316 |
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317 | PASS( "Translate Exception Declarations", ControlStruct::translateExcept( transUnit ) );
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318 | if ( exdeclp ) {
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319 | dump( std::move( transUnit ) );
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320 | return EXIT_SUCCESS;
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321 | }
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322 |
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323 | PASS( "Verify Ctor, Dtor & Assign", Validate::verifyCtorDtorAssign( transUnit ) );
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324 | PASS( "Replace Typedefs", Validate::replaceTypedef( transUnit ) );
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325 | PASS( "Fix Return Types", Validate::fixReturnTypes( transUnit ) );
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326 | PASS( "Enum and Pointer Decay", Validate::decayEnumsAndPointers( transUnit ) );
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327 |
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328 | PASS( "Link Reference To Types", Validate::linkReferenceToTypes( transUnit ) );
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329 |
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330 | PASS( "Fix Qualified Types", Validate::fixQualifiedTypes( transUnit ) );
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331 | PASS( "Hoist Struct", Validate::hoistStruct( transUnit ) );
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332 | PASS( "Eliminate Typedef", Validate::eliminateTypedef( transUnit ) );
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333 | PASS( "Validate Generic Parameters", Validate::fillGenericParameters( transUnit ) );
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334 | PASS( "Translate Dimensions", Validate::translateDimensionParameters( transUnit ) );
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335 | PASS( "Check Function Returns", Validate::checkReturnStatements( transUnit ) );
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336 | PASS( "Fix Return Statements", InitTweak::fixReturnStatements( transUnit ) );
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337 | PASS( "Implement Concurrent Keywords", Concurrency::implementKeywords( transUnit ) );
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338 | PASS( "Forall Pointer Decay", Validate::decayForallPointers( transUnit ) );
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339 | PASS( "Hoist Control Declarations", ControlStruct::hoistControlDecls( transUnit ) );
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340 |
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341 | PASS( "Generate Autogen Routines", Validate::autogenerateRoutines( transUnit ) );
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342 |
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343 | PASS( "Implement Actors", Concurrency::implementActors( transUnit ) );
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344 | PASS( "Implement Virtual Destructors", Virtual::implementVirtDtors(transUnit) );
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345 |
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346 | PASS( "Implement Mutex", Concurrency::implementMutex( transUnit ) );
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347 | PASS( "Implement Thread Start", Concurrency::implementThreadStarter( transUnit ) );
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348 | PASS( "Compound Literal", Validate::handleCompoundLiterals( transUnit ) );
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349 | PASS( "Set Length From Initializer", Validate::setLengthFromInitializer( transUnit ) );
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350 | PASS( "Find Global Decls", Validate::findGlobalDecls( transUnit ) );
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351 | PASS( "Fix Label Address", Validate::fixLabelAddresses( transUnit ) );
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352 |
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353 | if ( symtabp ) {
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354 | return EXIT_SUCCESS;
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355 | } // if
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356 |
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357 | if ( expraltp ) {
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358 | ResolvExpr::printCandidates( transUnit );
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359 | return EXIT_SUCCESS;
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360 | } // if
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361 |
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362 | if ( validp ) {
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363 | dump( std::move( transUnit ) );
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364 | return EXIT_SUCCESS;
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365 | } // if
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366 |
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367 | PASS( "Translate Throws", ControlStruct::translateThrows( transUnit ) );
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368 | PASS( "Fix Labels", ControlStruct::fixLabels( transUnit ) );
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369 | PASS( "Fix Names", CodeGen::fixNames( transUnit ) );
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370 | PASS( "Gen Init", InitTweak::genInit( transUnit ) );
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371 | PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( transUnit ) );
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372 |
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373 | if ( libcfap ) {
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374 | // Generate the bodies of cfa library functions.
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375 | LibCfa::makeLibCfa( transUnit );
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376 | } // if
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377 |
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378 | if ( declstatsp ) {
|
---|
379 | printDeclStats( transUnit );
|
---|
380 | return EXIT_SUCCESS;
|
---|
381 | } // if
|
---|
382 |
|
---|
383 | if ( bresolvep ) {
|
---|
384 | dump( std::move( transUnit ) );
|
---|
385 | return EXIT_SUCCESS;
|
---|
386 | } // if
|
---|
387 |
|
---|
388 | if ( resolvprotop ) {
|
---|
389 | dumpAsResolverProto( transUnit );
|
---|
390 | return EXIT_SUCCESS;
|
---|
391 | } // if
|
---|
392 |
|
---|
393 | PASS( "Resolve", ResolvExpr::resolve( transUnit ) );
|
---|
394 | if ( exprp ) {
|
---|
395 | dump( std::move( transUnit ) );
|
---|
396 | return EXIT_SUCCESS;
|
---|
397 | } // if
|
---|
398 |
|
---|
399 | forceFillCodeLocations( transUnit );
|
---|
400 |
|
---|
401 | PASS( "Fix Init", InitTweak::fix(transUnit, buildingLibrary()));
|
---|
402 |
|
---|
403 | // fix ObjectDecl - replaces ConstructorInit nodes
|
---|
404 | if ( ctorinitp ) {
|
---|
405 | dump( std::move( transUnit ) );
|
---|
406 | return EXIT_SUCCESS;
|
---|
407 | } // if
|
---|
408 |
|
---|
409 | // Currently not working due to unresolved issues with UniqueExpr
|
---|
410 | PASS( "Expand Unique Expr", Tuples::expandUniqueExpr( transUnit ) ); // xxx - is this the right place for this? want to expand ASAP so tha, sequent passes don't need to worry about double-visiting a unique expr - needs to go after InitTweak::fix so that copy constructed return declarations are reused
|
---|
411 |
|
---|
412 | PASS( "Translate Tries", ControlStruct::translateTries( transUnit ) );
|
---|
413 | PASS( "Gen Waitfor", Concurrency::generateWaitFor( transUnit ) );
|
---|
414 |
|
---|
415 | // Needs to happen before tuple types are expanded.
|
---|
416 | PASS( "Convert Specializations", GenPoly::convertSpecializations( transUnit ) );
|
---|
417 |
|
---|
418 | PASS( "Expand Tuples", Tuples::expandTuples( transUnit ) );
|
---|
419 |
|
---|
420 | if ( tuplep ) {
|
---|
421 | dump( std::move( transUnit ) );
|
---|
422 | return EXIT_SUCCESS;
|
---|
423 | } // if
|
---|
424 |
|
---|
425 | // Must come after Translate Tries.
|
---|
426 | PASS( "Virtual Expand Casts", Virtual::expandCasts( transUnit ) );
|
---|
427 |
|
---|
428 | PASS( "Instantiate Generics", GenPoly::instantiateGeneric( transUnit ) );
|
---|
429 | if ( genericsp ) {
|
---|
430 | dump( std::move( transUnit ) );
|
---|
431 | return EXIT_SUCCESS;
|
---|
432 | } // if
|
---|
433 |
|
---|
434 | PASS( "Convert L-Value", GenPoly::convertLvalue( transUnit ) );
|
---|
435 |
|
---|
436 | translationUnit = convert( std::move( transUnit ) );
|
---|
437 |
|
---|
438 | if ( bboxp ) {
|
---|
439 | dump( translationUnit );
|
---|
440 | return EXIT_SUCCESS;
|
---|
441 | } // if
|
---|
442 | PASS( "Box", GenPoly::box( translationUnit ) );
|
---|
443 |
|
---|
444 | PASS( "Link-Once", CodeGen::translateLinkOnce( translationUnit ) );
|
---|
445 |
|
---|
446 | // Code has been lowered to C, now we can start generation.
|
---|
447 |
|
---|
448 | if ( bcodegenp ) {
|
---|
449 | dump( translationUnit );
|
---|
450 | return EXIT_SUCCESS;
|
---|
451 | } // if
|
---|
452 |
|
---|
453 | if ( optind < argc ) { // any commands after the flags and input file ? => output file name
|
---|
454 | output = new ofstream( argv[ optind ] );
|
---|
455 | } // if
|
---|
456 |
|
---|
457 | CodeTools::fillLocations( translationUnit );
|
---|
458 | PASS( "Code Gen", CodeGen::generate( translationUnit, *output, ! genproto, prettycodegenp, true, linemarks ) );
|
---|
459 |
|
---|
460 | CodeGen::FixMain::fix( translationUnit, *output,
|
---|
461 | (PreludeDirector + "/bootloader.c").c_str() );
|
---|
462 | if ( output != &cout ) {
|
---|
463 | delete output;
|
---|
464 | } // if
|
---|
465 | } catch ( SemanticErrorException & e ) {
|
---|
466 | if ( errorp ) {
|
---|
467 | cerr << "---AST at error:---" << endl;
|
---|
468 | // We check which section the errors came from without looking at
|
---|
469 | // transUnit because std::move means it could look like anything.
|
---|
470 | if ( !translationUnit.empty() ) {
|
---|
471 | dump( translationUnit, cerr );
|
---|
472 | } else {
|
---|
473 | dump( std::move( transUnit ), cerr );
|
---|
474 | }
|
---|
475 | cerr << endl << "---End of AST, begin error message:---\n" << endl;
|
---|
476 | } // if
|
---|
477 | e.print();
|
---|
478 | if ( output != &cout ) {
|
---|
479 | delete output;
|
---|
480 | } // if
|
---|
481 | return EXIT_FAILURE;
|
---|
482 | } catch ( std::bad_alloc & ) {
|
---|
483 | cerr << "*cfa-cpp compilation error* std::bad_alloc" << endl;
|
---|
484 | backtrace( 1 );
|
---|
485 | abort();
|
---|
486 | } catch ( ... ) {
|
---|
487 | exception_ptr eptr = current_exception();
|
---|
488 | try {
|
---|
489 | if (eptr) {
|
---|
490 | rethrow_exception(eptr);
|
---|
491 | } else {
|
---|
492 | cerr << "*cfa-cpp compilation error* exception uncaught and unknown" << endl;
|
---|
493 | } // if
|
---|
494 | } catch( const exception & e ) {
|
---|
495 | cerr << "*cfa-cpp compilation error* uncaught exception \"" << e.what() << "\"\n";
|
---|
496 | } // try
|
---|
497 | return EXIT_FAILURE;
|
---|
498 | } // try
|
---|
499 |
|
---|
500 | deleteAll( translationUnit );
|
---|
501 | Stats::print();
|
---|
502 | return EXIT_SUCCESS;
|
---|
503 | } // main
|
---|
504 |
|
---|
505 |
|
---|
506 | static const char optstring[] = ":c:ghlLmNnpdP:S:twW:D:";
|
---|
507 |
|
---|
508 | enum { PreludeDir = 128 };
|
---|
509 | static struct option long_opts[] = {
|
---|
510 | { "colors", required_argument, nullptr, 'c' },
|
---|
511 | { "gdb", no_argument, nullptr, 'g' },
|
---|
512 | { "help", no_argument, nullptr, 'h' },
|
---|
513 | { "libcfa", no_argument, nullptr, 'l' },
|
---|
514 | { "linemarks", no_argument, nullptr, 'L' },
|
---|
515 | { "no-main", no_argument, 0, 'm' },
|
---|
516 | { "no-linemarks", no_argument, nullptr, 'N' },
|
---|
517 | { "no-prelude", no_argument, nullptr, 'n' },
|
---|
518 | { "prototypes", no_argument, nullptr, 'p' },
|
---|
519 | { "deterministic-out", no_argument, nullptr, 'd' },
|
---|
520 | { "print", required_argument, nullptr, 'P' },
|
---|
521 | { "prelude-dir", required_argument, nullptr, PreludeDir },
|
---|
522 | { "statistics", required_argument, nullptr, 'S' },
|
---|
523 | { "tree", no_argument, nullptr, 't' },
|
---|
524 | { "", no_argument, nullptr, 0 }, // -w
|
---|
525 | { "", no_argument, nullptr, 0 }, // -W
|
---|
526 | { "", no_argument, nullptr, 0 }, // -D
|
---|
527 | { nullptr, 0, nullptr, 0 }
|
---|
528 | }; // long_opts
|
---|
529 |
|
---|
530 | static const char * description[] = {
|
---|
531 | "diagnostic color: never, always, auto", // -c
|
---|
532 | "wait for gdb to attach", // -g
|
---|
533 | "print translator help message", // -h
|
---|
534 | "generate libcfa.c", // -l
|
---|
535 | "generate line marks", // -L
|
---|
536 | "do not replace main", // -m
|
---|
537 | "do not generate line marks", // -N
|
---|
538 | "do not read prelude", // -n
|
---|
539 | "do not generate prelude prototypes => prelude not printed", // -p
|
---|
540 | "only print deterministic output", // -d
|
---|
541 | "print", // -P
|
---|
542 | "<directory> prelude directory for debug/nodebug", // no flag
|
---|
543 | "<option-list> enable profiling information: counters, heap, time, all, none", // -S
|
---|
544 | "building cfa standard lib", // -t
|
---|
545 | "", // -w
|
---|
546 | "", // -W
|
---|
547 | "", // -D
|
---|
548 | }; // description
|
---|
549 |
|
---|
550 | static_assert( sizeof( long_opts ) / sizeof( long_opts[0] ) - 1 == sizeof( description ) / sizeof( description[0] ), "Long opts and description must match" );
|
---|
551 |
|
---|
552 | static struct Printopts {
|
---|
553 | const char * name;
|
---|
554 | int & flag;
|
---|
555 | int val;
|
---|
556 | const char * descript;
|
---|
557 | } printopts[] = {
|
---|
558 | { "ascodegen", codegenp, true, "print AST as codegen rather than AST" },
|
---|
559 | { "asterr", errorp, true, "print AST on error" },
|
---|
560 | { "declstats", declstatsp, true, "code property statistics" },
|
---|
561 | { "parse", yydebug, true, "yacc (parsing) debug information" },
|
---|
562 | { "pretty", prettycodegenp, true, "prettyprint for ascodegen flag" },
|
---|
563 | { "rproto", resolvprotop, true, "resolver-proto instance" },
|
---|
564 | { "rsteps", resolvep, true, "print resolver steps" },
|
---|
565 | // code dumps
|
---|
566 | { "ast", astp, true, "print AST after parsing" },
|
---|
567 | { "exdecl", exdeclp, true, "print AST after translating exception decls" },
|
---|
568 | { "symevt", symtabp, true, "print AST after symbol table events" },
|
---|
569 | { "altexpr", expraltp, true, "print alternatives for expressions" },
|
---|
570 | { "astdecl", validp, true, "print AST after declaration validation pass" },
|
---|
571 | { "resolver", bresolvep, true, "print AST before resolver step" },
|
---|
572 | { "astexpr", exprp, true, "print AST after expression analysis" },
|
---|
573 | { "ctordtor", ctorinitp, true, "print AST after ctor/dtor are replaced" },
|
---|
574 | { "tuple", tuplep, true, "print AST after tuple expansion" },
|
---|
575 | { "astgen", genericsp, true, "print AST after instantiate generics" },
|
---|
576 | { "box", bboxp, true, "print AST before box step" },
|
---|
577 | { "codegen", bcodegenp, true, "print AST before code generation" },
|
---|
578 | };
|
---|
579 | enum { printoptsSize = sizeof( printopts ) / sizeof( printopts[0] ) };
|
---|
580 |
|
---|
581 | static void usage( char * argv[] ) {
|
---|
582 | cout << "Usage: " << argv[0] << " [options] [input-file (default stdin)] [output-file (default stdout)], where options are:" << endl;
|
---|
583 | int i = 0, j = 1; // j skips starting colon
|
---|
584 | for ( ; long_opts[i].name != 0 && optstring[j] != '\0'; i += 1, j += 1 ) {
|
---|
585 | if ( long_opts[i].name[0] != '\0' ) { // hidden option, internal usage only
|
---|
586 | if ( strcmp( long_opts[i].name, "prelude-dir" ) != 0 ) { // flag
|
---|
587 | cout << " -" << optstring[j] << ",";
|
---|
588 | } else { // no flag
|
---|
589 | j -= 1; // compensate
|
---|
590 | cout << " ";
|
---|
591 | } // if
|
---|
592 | cout << " --" << left << setw(12) << long_opts[i].name << " ";
|
---|
593 | if ( strcmp( long_opts[i].name, "print" ) == 0 ) {
|
---|
594 | cout << "one of: " << endl;
|
---|
595 | for ( int i = 0; i < printoptsSize; i += 1 ) {
|
---|
596 | cout << setw(10) << " " << left << setw(10) << printopts[i].name << " " << printopts[i].descript << endl;
|
---|
597 | } // for
|
---|
598 | } else {
|
---|
599 | cout << description[i] << endl;
|
---|
600 | } // if
|
---|
601 | } // if
|
---|
602 | if ( optstring[j + 1] == ':' ) j += 1;
|
---|
603 | } // for
|
---|
604 | if ( long_opts[i].name != 0 || optstring[j] != '\0' ) assertf( false, "internal error, mismatch of option flags and names\n" );
|
---|
605 | exit( EXIT_FAILURE );
|
---|
606 | } // usage
|
---|
607 |
|
---|
608 | static void parse_cmdline( int argc, char * argv[] ) {
|
---|
609 | opterr = 0; // (global) prevent getopt from printing error messages
|
---|
610 |
|
---|
611 | bool Wsuppress = false, Werror = false;
|
---|
612 | int c;
|
---|
613 | while ( (c = getopt_long( argc, argv, optstring, long_opts, nullptr )) != -1 ) {
|
---|
614 | switch ( c ) {
|
---|
615 | case 'c': // diagnostic colors
|
---|
616 | if ( strcmp( optarg, "always" ) == 0 ) {
|
---|
617 | ErrorHelpers::colors = ErrorHelpers::Colors::Always;
|
---|
618 | } else if ( strcmp( optarg, "never" ) == 0 ) {
|
---|
619 | ErrorHelpers::colors = ErrorHelpers::Colors::Never;
|
---|
620 | } else if ( strcmp( optarg, "auto" ) == 0 ) {
|
---|
621 | ErrorHelpers::colors = ErrorHelpers::Colors::Auto;
|
---|
622 | } // if
|
---|
623 | break;
|
---|
624 | case 'h': // help message
|
---|
625 | usage( argv ); // no return
|
---|
626 | break;
|
---|
627 | case 'l': // generate libcfa.c
|
---|
628 | libcfap = true;
|
---|
629 | break;
|
---|
630 | case 'L': // generate line marks
|
---|
631 | linemarks = true;
|
---|
632 | break;
|
---|
633 | case 'm': // do not replace main
|
---|
634 | nomainp = true;
|
---|
635 | break;
|
---|
636 | case 'N': // do not generate line marks
|
---|
637 | linemarks = false;
|
---|
638 | break;
|
---|
639 | case 'n': // do not read prelude
|
---|
640 | nopreludep = true;
|
---|
641 | break;
|
---|
642 | case 'p': // generate prototypes for prelude functions
|
---|
643 | genproto = true;
|
---|
644 | break;
|
---|
645 | case 'd': // don't print non-deterministic output
|
---|
646 | deterministic_output = true;
|
---|
647 | break;
|
---|
648 | case 'P': // print options
|
---|
649 | for ( int i = 0;; i += 1 ) {
|
---|
650 | if ( i == printoptsSize ) {
|
---|
651 | cout << "Unknown --print option " << optarg << endl;
|
---|
652 | goto Default;
|
---|
653 | } // if
|
---|
654 | if ( strcmp( optarg, printopts[i].name ) == 0 ) {
|
---|
655 | printopts[i].flag = printopts[i].val;
|
---|
656 | break;
|
---|
657 | } // if
|
---|
658 | } // for
|
---|
659 | break;
|
---|
660 | case PreludeDir: // prelude directory for debug/nodebug, hidden
|
---|
661 | PreludeDirector = optarg;
|
---|
662 | break;
|
---|
663 | case 'S': // enable profiling information, argument comma separated list of names
|
---|
664 | Stats::parse_params( optarg );
|
---|
665 | break;
|
---|
666 | case 't': // building cfa stdlib
|
---|
667 | treep = true;
|
---|
668 | break;
|
---|
669 | case 'g': // wait for gdb
|
---|
670 | waiting_for_gdb = true;
|
---|
671 | break;
|
---|
672 | case 'w': // suppress all warnings, hidden
|
---|
673 | Wsuppress = true;
|
---|
674 | break;
|
---|
675 | case 'W': // coordinate gcc -W with CFA, hidden
|
---|
676 | if ( strcmp( optarg, "all" ) == 0 ) {
|
---|
677 | SemanticWarning_EnableAll();
|
---|
678 | } else if ( strcmp( optarg, "error" ) == 0 ) {
|
---|
679 | Werror = true;
|
---|
680 | } else {
|
---|
681 | char * warning = optarg;
|
---|
682 | Severity s;
|
---|
683 | if ( strncmp( optarg, "no-", 3 ) == 0 ) {
|
---|
684 | warning += 3;
|
---|
685 | s = Severity::Suppress;
|
---|
686 | } else {
|
---|
687 | s = Severity::Warn;
|
---|
688 | } // if
|
---|
689 | SemanticWarning_Set( warning, s );
|
---|
690 | } // if
|
---|
691 | break;
|
---|
692 | case 'D': // ignore -Dxxx, forwarded by cpp, hidden
|
---|
693 | break;
|
---|
694 | case '?': // unknown option
|
---|
695 | if ( optopt ) { // short option ?
|
---|
696 | cout << "Unknown option -" << (char)optopt << endl;
|
---|
697 | } else {
|
---|
698 | cout << "Unknown option " << argv[optind - 1] << endl;
|
---|
699 | } // if
|
---|
700 | goto Default;
|
---|
701 | case ':': // missing option
|
---|
702 | if ( optopt ) { // short option ?
|
---|
703 | cout << "Missing option for -" << (char)optopt << endl;
|
---|
704 | } else {
|
---|
705 | cout << "Missing option for " << argv[optind - 1] << endl;
|
---|
706 | } // if
|
---|
707 | goto Default;
|
---|
708 | Default:
|
---|
709 | default:
|
---|
710 | usage( argv ); // no return
|
---|
711 | } // switch
|
---|
712 | } // while
|
---|
713 |
|
---|
714 | if ( Werror ) {
|
---|
715 | SemanticWarning_WarningAsError();
|
---|
716 | } // if
|
---|
717 | if ( Wsuppress ) {
|
---|
718 | SemanticWarning_SuppressAll();
|
---|
719 | } // if
|
---|
720 | // for ( const auto w : WarningFormats ) {
|
---|
721 | // cout << w.name << ' ' << (int)w.severity << endl;
|
---|
722 | // } // for
|
---|
723 | } // parse_cmdline
|
---|
724 |
|
---|
725 | static bool notPrelude( Declaration * decl ) {
|
---|
726 | return ! LinkageSpec::isBuiltin( decl->get_linkage() );
|
---|
727 | } // notPrelude
|
---|
728 |
|
---|
729 | static void dump( list< Declaration * > & translationUnit, ostream & out ) {
|
---|
730 | list< Declaration * > decls;
|
---|
731 |
|
---|
732 | if ( genproto ) {
|
---|
733 | filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
|
---|
734 | } else {
|
---|
735 | decls = translationUnit;
|
---|
736 | } // if
|
---|
737 |
|
---|
738 | // depending on commandline options, either generate code or dump the AST
|
---|
739 | if ( codegenp ) {
|
---|
740 | CodeGen::generate( decls, out, ! genproto, prettycodegenp );
|
---|
741 | } else {
|
---|
742 | printAll( decls, out );
|
---|
743 | } // if
|
---|
744 | deleteAll( translationUnit );
|
---|
745 | } // dump
|
---|
746 |
|
---|
747 | static void dump( ast::TranslationUnit && transUnit, ostream & out ) {
|
---|
748 | std::list< Declaration * > translationUnit = convert( std::move( transUnit ) );
|
---|
749 | dump( translationUnit, out );
|
---|
750 | }
|
---|
751 |
|
---|
752 | // Local Variables: //
|
---|
753 | // tab-width: 4 //
|
---|
754 | // mode: c++ //
|
---|
755 | // compile-command: "make install" //
|
---|
756 | // End: //
|
---|