Jan Voung | 44c3a80 | 2015-03-27 16:29:08 -0700 | [diff] [blame] | 1 | //===- subzero/src/IceCompileServer.cpp - Compile server ------------------===// |
| 2 | // |
| 3 | // The Subzero Code Generator |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
Andrew Scull | 9612d32 | 2015-07-06 14:53:25 -0700 | [diff] [blame] | 9 | /// |
| 10 | /// \file |
| 11 | /// This file defines the basic commandline-based compile server. |
| 12 | /// |
Jan Voung | 44c3a80 | 2015-03-27 16:29:08 -0700 | [diff] [blame] | 13 | //===----------------------------------------------------------------------===// |
| 14 | |
John Porto | 67f8de9 | 2015-06-25 10:14:17 -0700 | [diff] [blame] | 15 | #include "IceCompileServer.h" |
Jan Voung | 44c3a80 | 2015-03-27 16:29:08 -0700 | [diff] [blame] | 16 | |
John Porto | 67f8de9 | 2015-06-25 10:14:17 -0700 | [diff] [blame] | 17 | #include "IceClFlags.h" |
| 18 | #include "IceClFlagsExtra.h" |
| 19 | #include "IceELFStreamer.h" |
| 20 | #include "IceGlobalContext.h" |
Jim Stichnoth | 98da966 | 2015-06-27 06:38:08 -0700 | [diff] [blame] | 21 | |
| 22 | #pragma clang diagnostic push |
| 23 | #pragma clang diagnostic ignored "-Wunused-parameter" |
Karl Schimpf | 6f9ba11 | 2015-06-22 13:20:23 -0700 | [diff] [blame] | 24 | #include "llvm/Bitcode/NaCl/NaClBitcodeMungeUtils.h" |
Jan Voung | 44c3a80 | 2015-03-27 16:29:08 -0700 | [diff] [blame] | 25 | #include "llvm/Support/FileSystem.h" |
| 26 | #include "llvm/Support/raw_os_ostream.h" |
Jan Voung | b2d5084 | 2015-05-12 09:53:50 -0700 | [diff] [blame] | 27 | #include "llvm/Support/Signals.h" |
Jan Voung | 44c3a80 | 2015-03-27 16:29:08 -0700 | [diff] [blame] | 28 | #include "llvm/Support/SourceMgr.h" |
| 29 | #include "llvm/Support/StreamingMemoryObject.h" |
Jim Stichnoth | 98da966 | 2015-06-27 06:38:08 -0700 | [diff] [blame] | 30 | #pragma clang diagnostic pop |
Jan Voung | 44c3a80 | 2015-03-27 16:29:08 -0700 | [diff] [blame] | 31 | |
John Porto | 67f8de9 | 2015-06-25 10:14:17 -0700 | [diff] [blame] | 32 | #include <fstream> |
| 33 | #include <iostream> |
| 34 | #include <thread> |
Jan Voung | 44c3a80 | 2015-03-27 16:29:08 -0700 | [diff] [blame] | 35 | |
| 36 | namespace Ice { |
| 37 | |
| 38 | namespace { |
| 39 | |
Andrew Scull | 57e1268 | 2015-09-16 11:30:19 -0700 | [diff] [blame^] | 40 | // Define a SmallVector backed buffer as a data stream, so that it can hold the |
| 41 | // generated binary version of the textual bitcode in the input file. |
Karl Schimpf | 6f9ba11 | 2015-06-22 13:20:23 -0700 | [diff] [blame] | 42 | class TextDataStreamer : public llvm::DataStreamer { |
| 43 | public: |
| 44 | TextDataStreamer() = default; |
| 45 | ~TextDataStreamer() final = default; |
| 46 | static TextDataStreamer *create(const IceString &Filename, std::string *Err); |
| 47 | size_t GetBytes(unsigned char *Buf, size_t Len) final; |
Jim Stichnoth | 20b71f5 | 2015-06-24 15:52:24 -0700 | [diff] [blame] | 48 | |
Karl Schimpf | 6f9ba11 | 2015-06-22 13:20:23 -0700 | [diff] [blame] | 49 | private: |
| 50 | llvm::SmallVector<char, 1024> BitcodeBuffer; |
| 51 | size_t Cursor = 0; |
| 52 | }; |
| 53 | |
| 54 | TextDataStreamer *TextDataStreamer::create(const IceString &Filename, |
| 55 | std::string *Err) { |
| 56 | TextDataStreamer *Streamer = new TextDataStreamer(); |
| 57 | llvm::raw_string_ostream ErrStrm(*Err); |
| 58 | if (std::error_code EC = llvm::readNaClRecordTextAndBuildBitcode( |
| 59 | Filename, Streamer->BitcodeBuffer, &ErrStrm)) { |
Karl Schimpf | cb6e95a | 2015-07-23 09:10:03 -0700 | [diff] [blame] | 60 | ErrStrm << EC.message(); |
Karl Schimpf | 6f9ba11 | 2015-06-22 13:20:23 -0700 | [diff] [blame] | 61 | ErrStrm.flush(); |
| 62 | delete Streamer; |
| 63 | return nullptr; |
| 64 | } |
Karl Schimpf | cb6e95a | 2015-07-23 09:10:03 -0700 | [diff] [blame] | 65 | ErrStrm.flush(); |
Karl Schimpf | 6f9ba11 | 2015-06-22 13:20:23 -0700 | [diff] [blame] | 66 | return Streamer; |
| 67 | } |
| 68 | |
| 69 | size_t TextDataStreamer::GetBytes(unsigned char *Buf, size_t Len) { |
| 70 | if (Cursor >= BitcodeBuffer.size()) |
| 71 | return 0; |
| 72 | size_t Remaining = BitcodeBuffer.size(); |
| 73 | Len = std::min(Len, Remaining); |
| 74 | for (size_t i = 0; i < Len; ++i) |
| 75 | Buf[i] = BitcodeBuffer[Cursor + i]; |
| 76 | Cursor += Len; |
| 77 | return Len; |
| 78 | } |
| 79 | |
Jim Stichnoth | 620ad73 | 2015-04-28 14:12:20 -0700 | [diff] [blame] | 80 | std::unique_ptr<Ostream> makeStream(const IceString &Filename, |
| 81 | std::error_code &EC) { |
| 82 | if (Filename == "-") { |
Jan Voung | 44c3a80 | 2015-03-27 16:29:08 -0700 | [diff] [blame] | 83 | return std::unique_ptr<Ostream>(new llvm::raw_os_ostream(std::cout)); |
Jim Stichnoth | 620ad73 | 2015-04-28 14:12:20 -0700 | [diff] [blame] | 84 | } else { |
| 85 | return std::unique_ptr<Ostream>( |
| 86 | new llvm::raw_fd_ostream(Filename, EC, llvm::sys::fs::F_None)); |
Jan Voung | 44c3a80 | 2015-03-27 16:29:08 -0700 | [diff] [blame] | 87 | } |
| 88 | } |
| 89 | |
| 90 | ErrorCodes getReturnValue(const Ice::ClFlagsExtra &Flags, ErrorCodes Val) { |
| 91 | if (Flags.getAlwaysExitSuccess()) |
| 92 | return EC_None; |
| 93 | return Val; |
| 94 | } |
| 95 | |
| 96 | } // end of anonymous namespace |
| 97 | |
| 98 | void CLCompileServer::run() { |
Jim Stichnoth | 20b71f5 | 2015-06-24 15:52:24 -0700 | [diff] [blame] | 99 | if (BuildDefs::dump()) { |
Jan Voung | b2d5084 | 2015-05-12 09:53:50 -0700 | [diff] [blame] | 100 | llvm::sys::PrintStackTraceOnErrorSignal(); |
| 101 | } |
Jan Voung | 44c3a80 | 2015-03-27 16:29:08 -0700 | [diff] [blame] | 102 | ClFlags::parseFlags(argc, argv); |
| 103 | ClFlags Flags; |
| 104 | ClFlagsExtra ExtraFlags; |
| 105 | ClFlags::getParsedClFlags(Flags); |
| 106 | ClFlags::getParsedClFlagsExtra(ExtraFlags); |
| 107 | |
Jim Stichnoth | 620ad73 | 2015-04-28 14:12:20 -0700 | [diff] [blame] | 108 | std::error_code EC; |
| 109 | std::unique_ptr<Ostream> Ls = makeStream(ExtraFlags.getLogFilename(), EC); |
| 110 | if (EC) { |
| 111 | llvm::report_fatal_error("Unable to open log file"); |
| 112 | } |
Jan Voung | 44c3a80 | 2015-03-27 16:29:08 -0700 | [diff] [blame] | 113 | Ls->SetUnbuffered(); |
| 114 | std::unique_ptr<Ostream> Os; |
| 115 | std::unique_ptr<ELFStreamer> ELFStr; |
| 116 | switch (Flags.getOutFileType()) { |
| 117 | case FT_Elf: { |
| 118 | if (ExtraFlags.getOutputFilename() == "-") { |
| 119 | *Ls << "Error: writing binary ELF to stdout is unsupported\n"; |
| 120 | return transferErrorCode(getReturnValue(ExtraFlags, Ice::EC_Args)); |
| 121 | } |
Jan Voung | 44c3a80 | 2015-03-27 16:29:08 -0700 | [diff] [blame] | 122 | std::unique_ptr<llvm::raw_fd_ostream> FdOs(new llvm::raw_fd_ostream( |
| 123 | ExtraFlags.getOutputFilename(), EC, llvm::sys::fs::F_None)); |
| 124 | if (EC) { |
| 125 | *Ls << "Failed to open output file: " << ExtraFlags.getOutputFilename() |
| 126 | << ":\n" << EC.message() << "\n"; |
| 127 | return transferErrorCode(getReturnValue(ExtraFlags, Ice::EC_Args)); |
| 128 | } |
| 129 | ELFStr.reset(new ELFStreamer(*FdOs.get())); |
| 130 | Os.reset(FdOs.release()); |
Andrew Scull | 57e1268 | 2015-09-16 11:30:19 -0700 | [diff] [blame^] | 131 | // NaCl sets st_blksize to 0, and LLVM uses that to pick the default |
| 132 | // preferred buffer size. Set to something non-zero. |
Jan Voung | 44c3a80 | 2015-03-27 16:29:08 -0700 | [diff] [blame] | 133 | Os->SetBufferSize(1 << 14); |
| 134 | } break; |
| 135 | case FT_Asm: |
| 136 | case FT_Iasm: { |
Jim Stichnoth | 620ad73 | 2015-04-28 14:12:20 -0700 | [diff] [blame] | 137 | Os = makeStream(ExtraFlags.getOutputFilename(), EC); |
| 138 | if (EC) { |
| 139 | *Ls << "Failed to open output file: " << ExtraFlags.getOutputFilename() |
| 140 | << ":\n" << EC.message() << "\n"; |
| 141 | return transferErrorCode(getReturnValue(ExtraFlags, Ice::EC_Args)); |
| 142 | } |
Jan Voung | 44c3a80 | 2015-03-27 16:29:08 -0700 | [diff] [blame] | 143 | Os->SetUnbuffered(); |
| 144 | } break; |
| 145 | } |
| 146 | |
Karl Schimpf | cb6e95a | 2015-07-23 09:10:03 -0700 | [diff] [blame] | 147 | if (BuildDefs::minimal() && ExtraFlags.getBitcodeAsText()) |
| 148 | llvm::report_fatal_error("Can't specify 'bitcode-as-text' flag in " |
| 149 | "minimal build"); |
| 150 | |
Jan Voung | 44c3a80 | 2015-03-27 16:29:08 -0700 | [diff] [blame] | 151 | IceString StrError; |
| 152 | std::unique_ptr<llvm::DataStreamer> InputStream( |
Karl Schimpf | cb6e95a | 2015-07-23 09:10:03 -0700 | [diff] [blame] | 153 | (!BuildDefs::minimal() && ExtraFlags.getBitcodeAsText()) |
Jim Stichnoth | 20b71f5 | 2015-06-24 15:52:24 -0700 | [diff] [blame] | 154 | ? TextDataStreamer::create(ExtraFlags.getIRFilename(), &StrError) |
| 155 | : llvm::getDataFileStreamer(ExtraFlags.getIRFilename(), &StrError)); |
Jan Voung | 44c3a80 | 2015-03-27 16:29:08 -0700 | [diff] [blame] | 156 | if (!StrError.empty() || !InputStream) { |
| 157 | llvm::SMDiagnostic Err(ExtraFlags.getIRFilename(), |
| 158 | llvm::SourceMgr::DK_Error, StrError); |
| 159 | Err.print(ExtraFlags.getAppName().c_str(), *Ls); |
| 160 | return transferErrorCode(getReturnValue(ExtraFlags, Ice::EC_Bitcode)); |
| 161 | } |
| 162 | |
Jim Stichnoth | 620ad73 | 2015-04-28 14:12:20 -0700 | [diff] [blame] | 163 | Ctx.reset( |
| 164 | new GlobalContext(Ls.get(), Os.get(), Ls.get(), ELFStr.get(), Flags)); |
Jan Voung | 44c3a80 | 2015-03-27 16:29:08 -0700 | [diff] [blame] | 165 | if (Ctx->getFlags().getNumTranslationThreads() != 0) { |
| 166 | std::thread CompileThread([this, &ExtraFlags, &InputStream]() { |
| 167 | Ctx->initParserThread(); |
| 168 | getCompiler().run(ExtraFlags, *Ctx.get(), std::move(InputStream)); |
| 169 | }); |
| 170 | CompileThread.join(); |
| 171 | } else { |
| 172 | getCompiler().run(ExtraFlags, *Ctx.get(), std::move(InputStream)); |
| 173 | } |
| 174 | transferErrorCode(getReturnValue( |
| 175 | ExtraFlags, static_cast<ErrorCodes>(Ctx->getErrorStatus()->value()))); |
| 176 | } |
| 177 | |
| 178 | } // end of namespace Ice |