| 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 : Peter A. Buhr |
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| 12 | // Last Modified On : Thu Aug 22 13:06:18 2019 |
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| 13 | // Update Count : 605 |
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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 <signal.h> // for signal, SIGABRT, SIGSEGV |
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| 20 | #include <cassert> // for assertf |
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| 21 | #include <cstdio> // for fopen, FILE, fclose, stdin |
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| 22 | #include <cstdlib> // for exit, free, abort, EXIT_F... |
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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 | #include "CompilationState.h" |
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| 32 | #include "../config.h" // for CFA_LIBDIR |
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| 33 | #include "CodeGen/FixMain.h" // for FixMain |
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| 34 | #include "CodeGen/FixNames.h" // for fixNames |
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| 35 | #include "CodeGen/Generate.h" // for generate |
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| 36 | #include "CodeTools/DeclStats.h" // for printDeclStats |
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| 37 | #include "CodeTools/ResolvProtoDump.h" // for dumpAsResolvProto |
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| 38 | #include "CodeTools/TrackLoc.h" // for fillLocations |
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| 39 | #include "Common/CompilerError.h" // for CompilerError |
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| 40 | #include "Common/Stats.h" |
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| 41 | #include "Common/PassVisitor.h" |
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| 42 | #include "Common/SemanticError.h" // for SemanticError |
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| 43 | #include "Common/UnimplementedError.h" // for UnimplementedError |
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| 44 | #include "Common/utility.h" // for deleteAll, filter, printAll |
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| 45 | #include "Concurrency/Waitfor.h" // for generateWaitfor |
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| 46 | #include "ControlStruct/ExceptTranslate.h" // for translateEHM |
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| 47 | #include "ControlStruct/Mutate.h" // for mutate |
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| 48 | #include "GenPoly/Box.h" // for box |
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| 49 | #include "GenPoly/InstantiateGeneric.h" // for instantiateGeneric |
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| 50 | #include "GenPoly/Lvalue.h" // for convertLvalue |
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| 51 | #include "GenPoly/Specialize.h" // for convertSpecializations |
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| 52 | #include "InitTweak/FixInit.h" // for fix |
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| 53 | #include "InitTweak/GenInit.h" // for genInit |
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| 54 | #include "MakeLibCfa.h" // for makeLibCfa |
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| 55 | #include "Parser/LinkageSpec.h" // for Spec, Cforall, Intrinsic |
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| 56 | #include "Parser/ParseNode.h" // for DeclarationNode, buildList |
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| 57 | #include "Parser/TypedefTable.h" // for TypedefTable |
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| 58 | #include "ResolvExpr/AlternativePrinter.h" // for AlternativePrinter |
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| 59 | #include "ResolvExpr/Resolver.h" // for resolve |
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| 60 | #include "SymTab/Validate.h" // for validate |
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| 61 | #include "SynTree/TopLvalue.h" // for assertTopLvalue, clearInn... |
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| 62 | #include "SynTree/Declaration.h" // for Declaration |
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| 63 | #include "SynTree/Visitor.h" // for acceptAll |
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| 64 | #include "Tuples/Tuples.h" // for expandMemberTuples, expan... |
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| 65 | #include "Virtual/ExpandCasts.h" // for expandCasts |
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| 66 | |
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| 67 | |
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| 68 | using namespace std; |
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| 69 | |
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| 70 | static void NewPass( const char * const name ) { |
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| 71 | Stats::Heap::newPass( name ); |
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| 72 | using namespace Stats::Counters; |
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| 73 | { |
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| 74 | static auto group = build<CounterGroup>( "Pass Visitor" ); |
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| 75 | auto pass = build<CounterGroup>( name, group ); |
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| 76 | pass_visitor_stats.depth = 0; |
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| 77 | pass_visitor_stats.avg = build<AverageCounter<double>>( "Average Depth", pass ); |
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| 78 | pass_visitor_stats.max = build<MaxCounter<double>>( "Max Depth", pass ); |
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| 79 | } |
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| 80 | { |
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| 81 | static auto group = build<CounterGroup>( "Syntax Node" ); |
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| 82 | auto pass = build<CounterGroup>( name, group ); |
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| 83 | BaseSyntaxNode::new_nodes = build<SimpleCounter>( "Allocs", pass ); |
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| 84 | } |
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| 85 | } |
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| 86 | |
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| 87 | #define PASS( name, pass ) \ |
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| 88 | if ( errorp ) { cerr << name << endl; } \ |
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| 89 | NewPass(name); \ |
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| 90 | Stats::Time::StartBlock(name); \ |
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| 91 | pass; \ |
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| 92 | Stats::Time::StopBlock(); |
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| 93 | |
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| 94 | LinkageSpec::Spec linkage = LinkageSpec::Cforall; |
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| 95 | TypedefTable typedefTable; |
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| 96 | DeclarationNode * parseTree = nullptr; // program parse tree |
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| 97 | |
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| 98 | static std::string PreludeDirector = ""; |
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| 99 | |
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| 100 | static void parse_cmdline( int argc, char *argv[] ); |
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| 101 | static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false ); |
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| 102 | static void dump( list< Declaration * > & translationUnit, ostream & out = cout ); |
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| 103 | |
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| 104 | static void backtrace( int start ) { // skip first N stack frames |
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| 105 | enum { Frames = 50 }; |
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| 106 | void * array[Frames]; |
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| 107 | int size = ::backtrace( array, Frames ); |
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| 108 | char ** messages = ::backtrace_symbols( array, size ); // does not demangle names |
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| 109 | |
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| 110 | *index( messages[0], '(' ) = '\0'; // find executable name |
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| 111 | cerr << "Stack back trace for: " << messages[0] << endl; |
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| 112 | |
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| 113 | // skip last 2 stack frames after main |
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| 114 | for ( int i = start; i < size - 2 && messages != nullptr; i += 1 ) { |
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| 115 | char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr; |
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| 116 | for ( char *p = messages[i]; *p; ++p ) { // find parantheses and +offset |
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| 117 | if ( *p == '(' ) { |
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| 118 | mangled_name = p; |
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| 119 | } else if ( *p == '+' ) { |
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| 120 | offset_begin = p; |
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| 121 | } else if ( *p == ')' ) { |
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| 122 | offset_end = p; |
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| 123 | break; |
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| 124 | } // if |
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| 125 | } // for |
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| 126 | |
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| 127 | // if line contains symbol, attempt to demangle |
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| 128 | int frameNo = i - start; |
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| 129 | if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) { |
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| 130 | *mangled_name++ = '\0'; // delimit strings |
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| 131 | *offset_begin++ = '\0'; |
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| 132 | *offset_end++ = '\0'; |
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| 133 | |
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| 134 | int status; |
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| 135 | char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status ); |
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| 136 | // bug in __cxa_demangle for single-character lower-case non-mangled names |
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| 137 | if ( status == 0 ) { // demangling successful ? |
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| 138 | cerr << "(" << frameNo << ") " << messages[i] << " : " |
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| 139 | << real_name << "+" << offset_begin << offset_end << endl; |
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| 140 | } else { // otherwise, output mangled name |
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| 141 | cerr << "(" << frameNo << ") " << messages[i] << " : " |
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| 142 | << mangled_name << "(/*unknown*/)+" << offset_begin << offset_end << endl; |
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| 143 | } // if |
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| 144 | |
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| 145 | free( real_name ); |
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| 146 | } else { // otherwise, print the whole line |
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| 147 | cerr << "(" << frameNo << ") " << messages[i] << endl; |
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| 148 | } // if |
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| 149 | } // for |
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| 150 | |
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| 151 | free( messages ); |
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| 152 | } // backtrace |
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| 153 | |
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| 154 | static void sigSegvBusHandler( int sig_num ) { |
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| 155 | cerr << "*CFA runtime error* program cfa-cpp terminated with " |
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| 156 | << (sig_num == SIGSEGV ? "segment fault" : "bus error") |
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| 157 | << "." << endl; |
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| 158 | backtrace( 2 ); // skip first 2 stack frames |
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| 159 | //_exit( EXIT_FAILURE ); |
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| 160 | abort(); // cause core dump for debugging |
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| 161 | } // sigSegvBusHandler |
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| 162 | |
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| 163 | static void sigAbortHandler( __attribute__((unused)) int sig_num ) { |
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| 164 | backtrace( 6 ); // skip first 6 stack frames |
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| 165 | signal( SIGABRT, SIG_DFL); // reset default signal handler |
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| 166 | raise( SIGABRT ); // reraise SIGABRT |
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| 167 | } // sigAbortHandler |
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| 168 | |
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| 169 | |
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| 170 | int main( int argc, char * argv[] ) { |
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| 171 | FILE * input; // use FILE rather than istream because yyin is FILE |
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| 172 | ostream * output = & cout; |
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| 173 | list< Declaration * > translationUnit; |
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| 174 | |
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| 175 | signal( SIGSEGV, sigSegvBusHandler ); |
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| 176 | signal( SIGBUS, sigSegvBusHandler ); |
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| 177 | signal( SIGABRT, sigAbortHandler ); |
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| 178 | |
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| 179 | // std::cout << "main" << std::endl; |
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| 180 | // for ( int i = 0; i < argc; i += 1 ) { |
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| 181 | // std::cout << '\t' << argv[i] << std::endl; |
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| 182 | // } // for |
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| 183 | |
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| 184 | parse_cmdline( argc, argv ); // process command-line arguments |
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| 185 | CodeGen::FixMain::setReplaceMain( !nomainp ); |
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| 186 | |
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| 187 | try { |
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| 188 | // choose to read the program from a file or stdin |
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| 189 | if ( optind < argc ) { // any commands after the flags ? => input file name |
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| 190 | input = fopen( argv[ optind ], "r" ); |
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| 191 | assertf( input, "cannot open %s because %s\n", argv[ optind ], strerror( errno ) ); |
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| 192 | optind += 1; |
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| 193 | } else { // no input file name |
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| 194 | input = stdin; |
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| 195 | } // if |
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| 196 | |
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| 197 | Stats::Time::StartGlobal(); |
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| 198 | NewPass("Parse"); |
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| 199 | Stats::Time::StartBlock("Parse"); |
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| 200 | |
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| 201 | // read in the builtins, extras, and the prelude |
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| 202 | if ( ! nopreludep ) { // include gcc builtins |
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| 203 | // -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here. |
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| 204 | |
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| 205 | assertf( !PreludeDirector.empty(), "Can't find prelude without option --prelude-dir must be used." ); |
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| 206 | |
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| 207 | // Read to gcc builtins, if not generating the cfa library |
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| 208 | FILE * gcc_builtins = fopen( (PreludeDirector + "/gcc-builtins.cf").c_str(), "r" ); |
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| 209 | assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" ); |
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| 210 | parse( gcc_builtins, LinkageSpec::Compiler ); |
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| 211 | |
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| 212 | // read the extra prelude in, if not generating the cfa library |
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| 213 | FILE * extras = fopen( (PreludeDirector + "/extras.cf").c_str(), "r" ); |
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| 214 | assertf( extras, "cannot open extras.cf\n" ); |
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| 215 | parse( extras, LinkageSpec::BuiltinC ); |
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| 216 | |
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| 217 | if ( ! libcfap ) { |
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| 218 | // read the prelude in, if not generating the cfa library |
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| 219 | FILE * prelude = fopen( (PreludeDirector + "/prelude.cfa").c_str(), "r" ); |
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| 220 | assertf( prelude, "cannot open prelude.cfa\n" ); |
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| 221 | parse( prelude, LinkageSpec::Intrinsic ); |
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| 222 | |
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| 223 | // Read to cfa builtins, if not generating the cfa library |
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| 224 | FILE * builtins = fopen( (PreludeDirector + "/builtins.cf").c_str(), "r" ); |
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| 225 | assertf( builtins, "cannot open builtins.cf\n" ); |
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| 226 | parse( builtins, LinkageSpec::BuiltinCFA ); |
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| 227 | } // if |
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| 228 | } // if |
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| 229 | |
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| 230 | parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug ); |
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| 231 | |
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| 232 | if ( parsep ) { |
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| 233 | parseTree->printList( cout ); |
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| 234 | delete parseTree; |
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| 235 | return EXIT_SUCCESS; |
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| 236 | } // if |
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| 237 | |
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| 238 | buildList( parseTree, translationUnit ); |
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| 239 | delete parseTree; |
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| 240 | parseTree = nullptr; |
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| 241 | |
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| 242 | if ( astp ) { |
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| 243 | dump( translationUnit ); |
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| 244 | return EXIT_SUCCESS; |
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| 245 | } // if |
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| 246 | |
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| 247 | // Temporary: fill locations after parsing so that every node has a location, for early error messages. |
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| 248 | // Eventually we should pass the locations from the parser to every node, but this quick and dirty solution |
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| 249 | // works okay for now. |
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| 250 | CodeTools::fillLocations( translationUnit ); |
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| 251 | Stats::Time::StopBlock(); |
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| 252 | |
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| 253 | //std::cerr << "Post-Parse Check" << std::endl; |
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| 254 | clearInnerLvalue( translationUnit ); |
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| 255 | assertTopLvalue( translationUnit ); |
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| 256 | |
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| 257 | // add the assignment statement after the initialization of a type parameter |
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| 258 | PASS( "Validate", SymTab::validate( translationUnit, symtabp ) ); |
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| 259 | if ( symtabp ) { |
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| 260 | deleteAll( translationUnit ); |
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| 261 | return EXIT_SUCCESS; |
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| 262 | } // if |
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| 263 | |
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| 264 | if ( expraltp ) { |
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| 265 | PassVisitor<ResolvExpr::AlternativePrinter> printer( cout ); |
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| 266 | acceptAll( translationUnit, printer ); |
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| 267 | return EXIT_SUCCESS; |
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| 268 | } // if |
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| 269 | |
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| 270 | if ( validp ) { |
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| 271 | dump( translationUnit ); |
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| 272 | return EXIT_SUCCESS; |
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| 273 | } // if |
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| 274 | |
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| 275 | assertTopLvalue( translationUnit ); |
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| 276 | PASS( "Fix Labels", ControlStruct::fixLabels( translationUnit ) ); |
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| 277 | assertTopLvalue( translationUnit ); |
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| 278 | PASS( "Fix Names", CodeGen::fixNames( translationUnit ) ); |
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| 279 | assertTopLvalue( translationUnit ); |
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| 280 | PASS( "Gen Init", InitTweak::genInit( translationUnit ) ); |
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| 281 | assertTopLvalue( translationUnit ); |
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| 282 | PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( translationUnit ) ); |
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| 283 | assertTopLvalue( translationUnit ); |
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| 284 | if ( libcfap ) { |
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| 285 | // generate the bodies of cfa library functions |
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| 286 | LibCfa::makeLibCfa( translationUnit ); |
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| 287 | } // if |
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| 288 | |
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| 289 | if ( declstatsp ) { |
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| 290 | CodeTools::printDeclStats( translationUnit ); |
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| 291 | deleteAll( translationUnit ); |
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| 292 | return EXIT_SUCCESS; |
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| 293 | } // if |
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| 294 | |
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| 295 | if ( bresolvep ) { |
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| 296 | dump( translationUnit ); |
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| 297 | return EXIT_SUCCESS; |
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| 298 | } // if |
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| 299 | |
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| 300 | CodeTools::fillLocations( translationUnit ); |
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| 301 | |
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| 302 | if ( resolvprotop ) { |
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| 303 | CodeTools::dumpAsResolvProto( translationUnit ); |
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| 304 | return EXIT_SUCCESS; |
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| 305 | } // if |
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| 306 | |
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| 307 | assertTopLvalue( translationUnit ); |
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| 308 | |
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| 309 | PASS( "Resolve", ResolvExpr::resolve( translationUnit ) ); |
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| 310 | if ( exprp ) { |
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| 311 | dump( translationUnit ); |
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| 312 | return EXIT_SUCCESS; |
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| 313 | } // if |
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| 314 | |
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| 315 | clearInnerLvalue( translationUnit ); |
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| 316 | assertTopLvalue( translationUnit ); |
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| 317 | |
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| 318 | // fix ObjectDecl - replaces ConstructorInit nodes |
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| 319 | PASS( "Fix Init", InitTweak::fix( translationUnit, buildingLibrary() ) ); |
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| 320 | clearInnerLvalue( translationUnit ); |
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| 321 | assertTopLvalue( translationUnit ); |
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| 322 | if ( ctorinitp ) { |
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| 323 | dump ( translationUnit ); |
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| 324 | return EXIT_SUCCESS; |
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| 325 | } // if |
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| 326 | |
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| 327 | PASS( "Expand Unique Expr", Tuples::expandUniqueExpr( translationUnit ) ); // 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 |
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| 328 | assertTopLvalue( translationUnit ); |
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| 329 | |
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| 330 | PASS( "Translate EHM" , ControlStruct::translateEHM( translationUnit ) ); |
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| 331 | assertTopLvalue( translationUnit ); |
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| 332 | |
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| 333 | PASS( "Gen Waitfor" , Concurrency::generateWaitFor( translationUnit ) ); |
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| 334 | clearInnerLvalue( translationUnit ); |
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| 335 | assertTopLvalue( translationUnit ); |
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| 336 | |
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| 337 | PASS( "Convert Specializations", GenPoly::convertSpecializations( translationUnit ) ); // needs to happen before tuple types are expanded |
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| 338 | clearInnerLvalue( translationUnit ); |
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| 339 | assertTopLvalue( translationUnit ); |
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| 340 | |
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| 341 | PASS( "Expand Tuples", Tuples::expandTuples( translationUnit ) ); // xxx - is this the right place for this? |
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| 342 | assertTopLvalue( translationUnit ); |
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| 343 | |
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| 344 | if ( tuplep ) { |
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| 345 | dump( translationUnit ); |
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| 346 | return EXIT_SUCCESS; |
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| 347 | } // if |
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| 348 | |
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| 349 | PASS( "Virtual Expand Casts", Virtual::expandCasts( translationUnit ) ); // Must come after translateEHM |
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| 350 | assertTopLvalue( translationUnit ); |
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| 351 | |
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| 352 | PASS( "Instantiate Generics", GenPoly::instantiateGeneric( translationUnit ) ); |
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| 353 | if ( genericsp ) { |
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| 354 | dump( translationUnit ); |
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| 355 | return EXIT_SUCCESS; |
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| 356 | } // if |
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| 357 | clearInnerLvalue( translationUnit ); |
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| 358 | assertTopLvalue( translationUnit ); |
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| 359 | PASS( "Convert L-Value", GenPoly::convertLvalue( translationUnit ) ); |
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| 360 | clearInnerLvalue( translationUnit ); |
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| 361 | assertTopLvalue( translationUnit ); |
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| 362 | |
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| 363 | if ( bboxp ) { |
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| 364 | dump( translationUnit ); |
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| 365 | return EXIT_SUCCESS; |
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| 366 | } // if |
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| 367 | PASS( "Box", GenPoly::box( translationUnit ) ); |
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| 368 | clearInnerLvalue( translationUnit ); |
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| 369 | assertTopLvalue( translationUnit ); |
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| 370 | |
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| 371 | if ( bcodegenp ) { |
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| 372 | dump( translationUnit ); |
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| 373 | return EXIT_SUCCESS; |
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| 374 | } // if |
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| 375 | |
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| 376 | if ( optind < argc ) { // any commands after the flags and input file ? => output file name |
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| 377 | output = new ofstream( argv[ optind ] ); |
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| 378 | } // if |
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| 379 | |
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| 380 | CodeTools::fillLocations( translationUnit ); |
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| 381 | assertTopLvalue( translationUnit ); |
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| 382 | PASS( "Code Gen", CodeGen::generate( translationUnit, *output, ! genproto, prettycodegenp, true, linemarks ) ); |
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| 383 | |
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| 384 | CodeGen::FixMain::fix( *output, (PreludeDirector + "/bootloader.c").c_str() ); |
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| 385 | if ( output != &cout ) { |
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| 386 | delete output; |
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| 387 | } // if |
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| 388 | } catch ( SemanticErrorException &e ) { |
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| 389 | if ( errorp ) { |
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| 390 | cerr << "---AST at error:---" << endl; |
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| 391 | dump( translationUnit, cerr ); |
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| 392 | cerr << endl << "---End of AST, begin error message:---\n" << endl; |
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| 393 | } // if |
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| 394 | e.print(); |
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| 395 | if ( output != &cout ) { |
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| 396 | delete output; |
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| 397 | } // if |
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| 398 | return EXIT_FAILURE; |
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| 399 | } catch ( UnimplementedError &e ) { |
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| 400 | cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl; |
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| 401 | if ( output != &cout ) { |
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| 402 | delete output; |
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| 403 | } // if |
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| 404 | return EXIT_FAILURE; |
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| 405 | } catch ( CompilerError &e ) { |
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| 406 | cerr << "Compiler Error: " << e.get_what() << endl; |
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| 407 | cerr << "(please report bugs to [REDACTED])" << endl; |
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| 408 | if ( output != &cout ) { |
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| 409 | delete output; |
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| 410 | } // if |
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| 411 | return EXIT_FAILURE; |
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| 412 | } catch ( ... ) { |
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| 413 | std::exception_ptr eptr = std::current_exception(); |
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| 414 | try { |
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| 415 | if (eptr) { |
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| 416 | std::rethrow_exception(eptr); |
|---|
| 417 | } else { |
|---|
| 418 | std::cerr << "Exception Uncaught and Unknown" << std::endl; |
|---|
| 419 | } // if |
|---|
| 420 | } catch(const std::exception& e) { |
|---|
| 421 | std::cerr << "Uncaught Exception \"" << e.what() << "\"\n"; |
|---|
| 422 | } // try |
|---|
| 423 | return EXIT_FAILURE; |
|---|
| 424 | } // try |
|---|
| 425 | |
|---|
| 426 | deleteAll( translationUnit ); |
|---|
| 427 | Stats::print(); |
|---|
| 428 | return EXIT_SUCCESS; |
|---|
| 429 | } // main |
|---|
| 430 | |
|---|
| 431 | |
|---|
| 432 | static const char optstring[] = ":hlLmNnpP:S:twW:D:"; |
|---|
| 433 | |
|---|
| 434 | enum { PreludeDir = 128 }; |
|---|
| 435 | static struct option long_opts[] = { |
|---|
| 436 | { "help", no_argument, nullptr, 'h' }, |
|---|
| 437 | { "libcfa", no_argument, nullptr, 'l' }, |
|---|
| 438 | { "linemarks", no_argument, nullptr, 'L' }, |
|---|
| 439 | { "no-main", no_argument, 0, 'm' }, |
|---|
| 440 | { "no-linemarks", no_argument, nullptr, 'N' }, |
|---|
| 441 | { "no-prelude", no_argument, nullptr, 'n' }, |
|---|
| 442 | { "prototypes", no_argument, nullptr, 'p' }, |
|---|
| 443 | { "print", required_argument, nullptr, 'P' }, |
|---|
| 444 | { "prelude-dir", required_argument, nullptr, PreludeDir }, |
|---|
| 445 | { "statistics", required_argument, nullptr, 'S' }, |
|---|
| 446 | { "tree", no_argument, nullptr, 't' }, |
|---|
| 447 | { "", no_argument, nullptr, 0 }, // -w |
|---|
| 448 | { "", no_argument, nullptr, 0 }, // -W |
|---|
| 449 | { "", no_argument, nullptr, 0 }, // -D |
|---|
| 450 | { nullptr, 0, nullptr, 0 } |
|---|
| 451 | }; // long_opts |
|---|
| 452 | |
|---|
| 453 | static const char * description[] = { |
|---|
| 454 | "print help message", // -h |
|---|
| 455 | "generate libcfa.c", // -l |
|---|
| 456 | "generate line marks", // -L |
|---|
| 457 | "do not replace main", // -m |
|---|
| 458 | "do not generate line marks", // -N |
|---|
| 459 | "do not read prelude", // -n |
|---|
| 460 | "generate prototypes for prelude functions", // -p |
|---|
| 461 | "print", // -P |
|---|
| 462 | "<directory> prelude directory for debug/nodebug", // no flag |
|---|
| 463 | "<option-list> enable profiling information:\n counters,heap,time,all,none", // -S |
|---|
| 464 | "build in tree", // -t |
|---|
| 465 | "", // -w |
|---|
| 466 | "", // -W |
|---|
| 467 | "", // -D |
|---|
| 468 | }; // description |
|---|
| 469 | |
|---|
| 470 | static_assert( sizeof( long_opts ) / sizeof( long_opts[0] ) - 1 == sizeof( description ) / sizeof( description[0] ), "Long opts and description must match" ); |
|---|
| 471 | |
|---|
| 472 | static struct Printopts { |
|---|
| 473 | const char * name; |
|---|
| 474 | int & flag; |
|---|
| 475 | int val; |
|---|
| 476 | const char * descript; |
|---|
| 477 | } printopts[] = { |
|---|
| 478 | { "ascodegen", codegenp, true, "print AST as codegen rather than AST" }, |
|---|
| 479 | { "asterr", errorp, true, "print AST on error" }, |
|---|
| 480 | { "declstats", declstatsp, true, "code property statistics" }, |
|---|
| 481 | { "parse", yydebug, true, "yacc (parsing) debug information" }, |
|---|
| 482 | { "pretty", prettycodegenp, true, "prettyprint for ascodegen flag" }, |
|---|
| 483 | { "rproto", resolvprotop, true, "resolver-proto instance" }, |
|---|
| 484 | { "rsteps", resolvep, true, "print resolver steps" }, |
|---|
| 485 | { "tree", parsep, true, "print parse tree" }, |
|---|
| 486 | // code dumps |
|---|
| 487 | { "ast", astp, true, "print AST after parsing" }, |
|---|
| 488 | { "symevt", symtabp, true, "print AST after symbol table events" }, |
|---|
| 489 | { "altexpr", expraltp, true, "print alternatives for expressions" }, |
|---|
| 490 | { "astdecl", validp, true, "print AST after declaration validation pass" }, |
|---|
| 491 | { "resolver", bresolvep, true, "print AST before resolver step" }, |
|---|
| 492 | { "astexpr", exprp, true, "print AST after expression analysis" }, |
|---|
| 493 | { "ctordtor", ctorinitp, true, "print AST after ctor/dtor are replaced" }, |
|---|
| 494 | { "tuple", tuplep, true, "print AST after tuple expansion" }, |
|---|
| 495 | { "astgen", genericsp, true, "print AST after instantiate generics" }, |
|---|
| 496 | { "box", bboxp, true, "print AST before box step" }, |
|---|
| 497 | { "codegen", bcodegenp, true, "print AST before code generation" }, |
|---|
| 498 | }; |
|---|
| 499 | enum { printoptsSize = sizeof( printopts ) / sizeof( printopts[0] ) }; |
|---|
| 500 | |
|---|
| 501 | static void usage( char *argv[] ) { |
|---|
| 502 | cout << "Usage: " << argv[0] << " [options] [input-file (default stdin)] [output-file (default stdout)], where options are:" << endl; |
|---|
| 503 | int i = 0, j = 1; // j skips starting colon |
|---|
| 504 | for ( ; long_opts[i].name != 0 && optstring[j] != '\0'; i += 1, j += 1 ) { |
|---|
| 505 | if ( long_opts[i].name[0] != '\0' ) { // hidden option, internal usage only |
|---|
| 506 | if ( strcmp( long_opts[i].name, "prelude-dir" ) != 0 ) { // flag |
|---|
| 507 | cout << " -" << optstring[j] << ","; |
|---|
| 508 | } else { // no flag |
|---|
| 509 | j -= 1; // compensate |
|---|
| 510 | cout << " "; |
|---|
| 511 | } // if |
|---|
| 512 | cout << " --" << left << setw(12) << long_opts[i].name << " "; |
|---|
| 513 | if ( strcmp( long_opts[i].name, "print" ) == 0 ) { |
|---|
| 514 | cout << "one of: " << endl; |
|---|
| 515 | for ( int i = 0; i < printoptsSize; i += 1 ) { |
|---|
| 516 | cout << setw(10) << " " << left << setw(10) << printopts[i].name << " " << printopts[i].descript << endl; |
|---|
| 517 | } // for |
|---|
| 518 | } else { |
|---|
| 519 | cout << description[i] << endl; |
|---|
| 520 | } // if |
|---|
| 521 | } // if |
|---|
| 522 | if ( optstring[j + 1] == ':' ) j += 1; |
|---|
| 523 | } // for |
|---|
| 524 | if ( long_opts[i].name != 0 || optstring[j] != '\0' ) assertf( false, "internal error, mismatch of option flags and names\n" ); |
|---|
| 525 | exit( EXIT_FAILURE ); |
|---|
| 526 | } // usage |
|---|
| 527 | |
|---|
| 528 | static void parse_cmdline( int argc, char * argv[] ) { |
|---|
| 529 | opterr = 0; // (global) prevent getopt from printing error messages |
|---|
| 530 | |
|---|
| 531 | bool Wsuppress = false, Werror = false; |
|---|
| 532 | int c; |
|---|
| 533 | while ( (c = getopt_long( argc, argv, optstring, long_opts, nullptr )) != -1 ) { |
|---|
| 534 | switch ( c ) { |
|---|
| 535 | case 'h': // help message |
|---|
| 536 | usage( argv ); // no return |
|---|
| 537 | break; |
|---|
| 538 | case 'l': // generate libcfa.c |
|---|
| 539 | libcfap = true; |
|---|
| 540 | break; |
|---|
| 541 | case 'L': // generate line marks |
|---|
| 542 | linemarks = true; |
|---|
| 543 | break; |
|---|
| 544 | case 'm': // do not replace main |
|---|
| 545 | nomainp = true; |
|---|
| 546 | break; |
|---|
| 547 | case 'N': // do not generate line marks |
|---|
| 548 | linemarks = false; |
|---|
| 549 | break; |
|---|
| 550 | case 'n': // do not read prelude |
|---|
| 551 | nopreludep = true; |
|---|
| 552 | break; |
|---|
| 553 | case 'p': // generate prototypes for prelude functions |
|---|
| 554 | genproto = true; |
|---|
| 555 | break; |
|---|
| 556 | case 'P': // print options |
|---|
| 557 | for ( int i = 0;; i += 1 ) { |
|---|
| 558 | if ( i == printoptsSize ) { |
|---|
| 559 | cout << "Unknown --print option " << optarg << endl; |
|---|
| 560 | goto Default; |
|---|
| 561 | } // if |
|---|
| 562 | if ( strcmp( optarg, printopts[i].name ) == 0 ) { |
|---|
| 563 | printopts[i].flag = printopts[i].val; |
|---|
| 564 | break; |
|---|
| 565 | } // if |
|---|
| 566 | } // for |
|---|
| 567 | break; |
|---|
| 568 | case PreludeDir: // prelude directory for debug/nodebug, hidden |
|---|
| 569 | PreludeDirector = optarg; |
|---|
| 570 | break; |
|---|
| 571 | case 'S': // enable profiling information, argument comma separated list of names |
|---|
| 572 | Stats::parse_params( optarg ); |
|---|
| 573 | break; |
|---|
| 574 | case 't': // build in tree |
|---|
| 575 | treep = true; |
|---|
| 576 | break; |
|---|
| 577 | case 'w': // suppress all warnings, hidden |
|---|
| 578 | Wsuppress = true; |
|---|
| 579 | break; |
|---|
| 580 | case 'W': // coordinate gcc -W with CFA, hidden |
|---|
| 581 | if ( strcmp( optarg, "all" ) == 0 ) { |
|---|
| 582 | SemanticWarning_EnableAll(); |
|---|
| 583 | } else if ( strcmp( optarg, "error" ) == 0 ) { |
|---|
| 584 | Werror = true; |
|---|
| 585 | } else { |
|---|
| 586 | char * warning = optarg; |
|---|
| 587 | Severity s; |
|---|
| 588 | if ( strncmp( optarg, "no-", 3 ) == 0 ) { |
|---|
| 589 | warning += 3; |
|---|
| 590 | s = Severity::Suppress; |
|---|
| 591 | } else { |
|---|
| 592 | s = Severity::Warn; |
|---|
| 593 | } // if |
|---|
| 594 | SemanticWarning_Set( warning, s ); |
|---|
| 595 | } // if |
|---|
| 596 | break; |
|---|
| 597 | case 'D': // ignore -Dxxx, forwarded by cpp, hidden |
|---|
| 598 | break; |
|---|
| 599 | case '?': // unknown option |
|---|
| 600 | if ( optopt ) { // short option ? |
|---|
| 601 | cout << "Unknown option -" << (char)optopt << endl; |
|---|
| 602 | } else { |
|---|
| 603 | cout << "Unknown option " << argv[optind - 1] << endl; |
|---|
| 604 | } // if |
|---|
| 605 | goto Default; |
|---|
| 606 | case ':': // missing option |
|---|
| 607 | if ( optopt ) { // short option ? |
|---|
| 608 | cout << "Missing option for -" << (char)optopt << endl; |
|---|
| 609 | } else { |
|---|
| 610 | cout << "Missing option for " << argv[optind - 1] << endl; |
|---|
| 611 | } // if |
|---|
| 612 | goto Default; |
|---|
| 613 | Default: |
|---|
| 614 | default: |
|---|
| 615 | usage( argv ); // no return |
|---|
| 616 | } // switch |
|---|
| 617 | } // while |
|---|
| 618 | |
|---|
| 619 | if ( Werror ) { |
|---|
| 620 | SemanticWarning_WarningAsError(); |
|---|
| 621 | } // if |
|---|
| 622 | if ( Wsuppress ) { |
|---|
| 623 | SemanticWarning_SuppressAll(); |
|---|
| 624 | } // if |
|---|
| 625 | // for ( const auto w : WarningFormats ) { |
|---|
| 626 | // cout << w.name << ' ' << (int)w.severity << endl; |
|---|
| 627 | // } // for |
|---|
| 628 | } // parse_cmdline |
|---|
| 629 | |
|---|
| 630 | static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) { |
|---|
| 631 | extern int yyparse( void ); |
|---|
| 632 | extern FILE * yyin; |
|---|
| 633 | extern int yylineno; |
|---|
| 634 | |
|---|
| 635 | ::linkage = linkage; // set globals |
|---|
| 636 | yyin = input; |
|---|
| 637 | yylineno = 1; |
|---|
| 638 | int parseStatus = yyparse(); |
|---|
| 639 | |
|---|
| 640 | fclose( input ); |
|---|
| 641 | if ( shouldExit || parseStatus != 0 ) { |
|---|
| 642 | exit( parseStatus ); |
|---|
| 643 | } // if |
|---|
| 644 | } // parse |
|---|
| 645 | |
|---|
| 646 | static bool notPrelude( Declaration * decl ) { |
|---|
| 647 | return ! LinkageSpec::isBuiltin( decl->get_linkage() ); |
|---|
| 648 | } // notPrelude |
|---|
| 649 | |
|---|
| 650 | static void dump( list< Declaration * > & translationUnit, ostream & out ) { |
|---|
| 651 | list< Declaration * > decls; |
|---|
| 652 | |
|---|
| 653 | if ( genproto ) { |
|---|
| 654 | filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude ); |
|---|
| 655 | } else { |
|---|
| 656 | decls = translationUnit; |
|---|
| 657 | } // if |
|---|
| 658 | |
|---|
| 659 | // depending on commandline options, either generate code or dump the AST |
|---|
| 660 | if ( codegenp ) { |
|---|
| 661 | CodeGen::generate( decls, out, ! genproto, prettycodegenp ); |
|---|
| 662 | } else { |
|---|
| 663 | printAll( decls, out ); |
|---|
| 664 | } // if |
|---|
| 665 | deleteAll( translationUnit ); |
|---|
| 666 | } // dump |
|---|
| 667 | |
|---|
| 668 | // Local Variables: // |
|---|
| 669 | // tab-width: 4 // |
|---|
| 670 | // mode: c++ // |
|---|
| 671 | // compile-command: "make install" // |
|---|
| 672 | // End: // |
|---|
