builder: use builtin Clang when building statically
This will be a huge help for people installing TinyGo that don't have LLVM/Clang 9 already installed and in the $PATH variable.
Этот коммит содержится в:
Ayke van Laethem
Ron Evans
родитель
49eb414530
коммит
8d32a7c3a3
10 изменённых файлов: 811 добавлений и 13 удалений
3
LICENSE
3
LICENSE
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@ -3,6 +3,9 @@ Copyright (c) 2018-2019 TinyGo Authors. All rights reserved.
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TinyGo includes portions of the Go standard library.
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Copyright (c) 2009-2019 The Go Authors. All rights reserved.
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TinyGo includes portions of LLVM, which is under the Apache License v2.0 with
|
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LLVM Exceptions. See https://llvm.org/LICENSE.txt for license information.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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4
Makefile
4
Makefile
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@ -34,7 +34,7 @@ endif
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.PHONY: all tinygo test $(LLVM_BUILDDIR) llvm-source clean fmt gen-device gen-device-nrf gen-device-avr
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LLVM_COMPONENTS = all-targets analysis asmparser asmprinter bitreader bitwriter codegen core coroutines debuginfodwarf executionengine instrumentation interpreter ipo irreader linker lto mc mcjit objcarcopts option profiledata scalaropts support target
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LLVM_COMPONENTS = all-targets analysis asmparser asmprinter bitreader bitwriter codegen core coroutines coverage debuginfodwarf executionengine instrumentation interpreter ipo irreader linker lto mc mcjit objcarcopts option profiledata scalaropts support target
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ifeq ($(OS),Windows_NT)
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EXE = .exe
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@ -78,7 +78,7 @@ LLD_LIBS = $(START_GROUP) -llldCOFF -llldCommon -llldCore -llldDriver -llldELF -
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# For static linking.
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ifneq ("$(wildcard $(LLVM_BUILDDIR)/bin/llvm-config*)","")
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CGO_CPPFLAGS=$(shell $(LLVM_BUILDDIR)/bin/llvm-config --cppflags) -I$(abspath $(CLANG_SRC))/include -I$(abspath $(LLD_SRC))/include
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CGO_CPPFLAGS=$(shell $(LLVM_BUILDDIR)/bin/llvm-config --cppflags) -I$(abspath $(LLVM_BUILDDIR))/tools/clang/include -I$(abspath $(CLANG_SRC))/include -I$(abspath $(LLD_SRC))/include
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CGO_CXXFLAGS=-std=c++11
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CGO_LDFLAGS+=$(LIBCLANG_PATH) -std=c++11 -L$(abspath $(LLVM_BUILDDIR)/lib) $(CLANG_LIBS) $(LLD_LIBS) $(shell $(LLVM_BUILDDIR)/bin/llvm-config --ldflags --libs --system-libs $(LLVM_COMPONENTS)) -lstdc++ $(CGO_LDFLAGS_EXTRA)
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endif
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@ -125,3 +125,5 @@ The original reasoning was: if [Python](https://micropython.org/) can run on mic
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## License
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This project is licensed under the BSD 3-clause license, just like the [Go project](https://golang.org/LICENSE) itself.
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Some code has been copied from the LLVM project and is therefore licensed under [a variant of the Apache 2.0 license](http://releases.llvm.org/9.0.0/LICENSE.TXT). This has been clearly indicated in the header of these files.
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@ -154,11 +154,7 @@ func Build(pkgName, outpath string, config *compileopts.Config, action func(stri
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for i, path := range config.ExtraFiles() {
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abspath := filepath.Join(root, path)
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outpath := filepath.Join(dir, "extra-"+strconv.Itoa(i)+"-"+filepath.Base(path)+".o")
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cmdNames := []string{config.Target.Compiler}
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if names, ok := commands[config.Target.Compiler]; ok {
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cmdNames = names
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}
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err := execCommand(cmdNames, append(config.CFlags(), "-c", "-o", outpath, abspath)...)
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err := runCCompiler(config.Target.Compiler, append(config.CFlags(), "-c", "-o", outpath, abspath)...)
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if err != nil {
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return &commandError{"failed to build", path, err}
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}
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@ -170,11 +166,7 @@ func Build(pkgName, outpath string, config *compileopts.Config, action func(stri
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for _, file := range pkg.CFiles {
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path := filepath.Join(pkg.Package.Dir, file)
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outpath := filepath.Join(dir, "pkg"+strconv.Itoa(i)+"-"+file+".o")
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cmdNames := []string{config.Target.Compiler}
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if names, ok := commands[config.Target.Compiler]; ok {
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cmdNames = names
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}
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err := execCommand(cmdNames, append(config.CFlags(), "-c", "-o", outpath, path)...)
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err := runCCompiler(config.Target.Compiler, append(config.CFlags(), "-c", "-o", outpath, path)...)
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if err != nil {
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return &commandError{"failed to build", path, err}
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}
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@ -236,7 +236,7 @@ func CompileBuiltins(target string, callback func(path string) error) error {
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// Note: -fdebug-prefix-map is necessary to make the output archive
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// reproducible. Otherwise the temporary directory is stored in the
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// archive itself, which varies each run.
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err := execCommand(commands["clang"], "-c", "-Oz", "-g", "-Werror", "-Wall", "-std=c11", "-fshort-enums", "-nostdlibinc", "-ffunction-sections", "-fdata-sections", "--target="+target, "-fdebug-prefix-map="+dir+"="+remapDir, "-o", objpath, srcpath)
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err := runCCompiler("clang", "-c", "-Oz", "-g", "-Werror", "-Wall", "-std=c11", "-fshort-enums", "-nostdlibinc", "-ffunction-sections", "-fdata-sections", "-Wno-macro-redefined", "--target="+target, "-fdebug-prefix-map="+dir+"="+remapDir, "-o", objpath, srcpath)
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if err != nil {
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return &commandError{"failed to build", srcpath, err}
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}
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504
builder/cc1as.cpp
Обычный файл
504
builder/cc1as.cpp
Обычный файл
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@ -0,0 +1,504 @@
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// +build byollvm
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//===-- cc1as.cpp - Clang Assembler --------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This is the entry point to the clang -cc1as functionality, which implements
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// the direct interface to the LLVM MC based assembler.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Basic/Diagnostic.h"
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#include "clang/Basic/DiagnosticOptions.h"
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#include "clang/Driver/DriverDiagnostic.h"
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#include "clang/Driver/Options.h"
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#include "clang/Frontend/FrontendDiagnostic.h"
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#include "clang/Frontend/TextDiagnosticPrinter.h"
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#include "clang/Frontend/Utils.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/ADT/StringSwitch.h"
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#include "llvm/ADT/Triple.h"
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#include "llvm/IR/DataLayout.h"
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#include "llvm/MC/MCAsmBackend.h"
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#include "llvm/MC/MCAsmInfo.h"
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#include "llvm/MC/MCCodeEmitter.h"
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#include "llvm/MC/MCContext.h"
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#include "llvm/MC/MCInstrInfo.h"
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#include "llvm/MC/MCObjectFileInfo.h"
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#include "llvm/MC/MCObjectWriter.h"
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#include "llvm/MC/MCParser/MCAsmParser.h"
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#include "llvm/MC/MCParser/MCTargetAsmParser.h"
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#include "llvm/MC/MCRegisterInfo.h"
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#include "llvm/MC/MCSectionMachO.h"
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#include "llvm/MC/MCStreamer.h"
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#include "llvm/MC/MCSubtargetInfo.h"
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#include "llvm/MC/MCTargetOptions.h"
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#include "llvm/Option/Arg.h"
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#include "llvm/Option/ArgList.h"
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#include "llvm/Option/OptTable.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/FormattedStream.h"
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#include "llvm/Support/Host.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/Signals.h"
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#include "llvm/Support/SourceMgr.h"
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#include "llvm/Support/TargetRegistry.h"
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#include "llvm/Support/TargetSelect.h"
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#include "llvm/Support/Timer.h"
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#include "llvm/Support/raw_ostream.h"
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#include <memory>
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#include <system_error>
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using namespace clang;
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using namespace clang::driver;
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using namespace clang::driver::options;
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using namespace llvm;
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using namespace llvm::opt;
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#include "cc1as.h"
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bool AssemblerInvocation::CreateFromArgs(AssemblerInvocation &Opts,
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ArrayRef<const char *> Argv,
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DiagnosticsEngine &Diags) {
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bool Success = true;
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// Parse the arguments.
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std::unique_ptr<OptTable> OptTbl(createDriverOptTable());
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const unsigned IncludedFlagsBitmask = options::CC1AsOption;
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unsigned MissingArgIndex, MissingArgCount;
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InputArgList Args = OptTbl->ParseArgs(Argv, MissingArgIndex, MissingArgCount,
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IncludedFlagsBitmask);
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// Check for missing argument error.
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if (MissingArgCount) {
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Diags.Report(diag::err_drv_missing_argument)
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<< Args.getArgString(MissingArgIndex) << MissingArgCount;
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Success = false;
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}
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// Issue errors on unknown arguments.
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for (const Arg *A : Args.filtered(OPT_UNKNOWN)) {
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auto ArgString = A->getAsString(Args);
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std::string Nearest;
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if (OptTbl->findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1)
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Diags.Report(diag::err_drv_unknown_argument) << ArgString;
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else
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Diags.Report(diag::err_drv_unknown_argument_with_suggestion)
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<< ArgString << Nearest;
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Success = false;
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}
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// Construct the invocation.
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// Target Options
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Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple));
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Opts.CPU = Args.getLastArgValue(OPT_target_cpu);
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Opts.Features = Args.getAllArgValues(OPT_target_feature);
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// Use the default target triple if unspecified.
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if (Opts.Triple.empty())
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Opts.Triple = llvm::sys::getDefaultTargetTriple();
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// Language Options
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Opts.IncludePaths = Args.getAllArgValues(OPT_I);
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Opts.NoInitialTextSection = Args.hasArg(OPT_n);
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Opts.SaveTemporaryLabels = Args.hasArg(OPT_msave_temp_labels);
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// Any DebugInfoKind implies GenDwarfForAssembly.
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Opts.GenDwarfForAssembly = Args.hasArg(OPT_debug_info_kind_EQ);
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if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections,
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OPT_compress_debug_sections_EQ)) {
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if (A->getOption().getID() == OPT_compress_debug_sections) {
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// TODO: be more clever about the compression type auto-detection
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Opts.CompressDebugSections = llvm::DebugCompressionType::GNU;
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} else {
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Opts.CompressDebugSections =
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llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue())
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.Case("none", llvm::DebugCompressionType::None)
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.Case("zlib", llvm::DebugCompressionType::Z)
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.Case("zlib-gnu", llvm::DebugCompressionType::GNU)
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.Default(llvm::DebugCompressionType::None);
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}
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}
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Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations);
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Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 2, Diags);
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Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags);
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Opts.DwarfDebugProducer = Args.getLastArgValue(OPT_dwarf_debug_producer);
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Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir);
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Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name);
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for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ))
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Opts.DebugPrefixMap.insert(StringRef(Arg).split('='));
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// Frontend Options
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if (Args.hasArg(OPT_INPUT)) {
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bool First = true;
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for (const Arg *A : Args.filtered(OPT_INPUT)) {
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if (First) {
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Opts.InputFile = A->getValue();
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First = false;
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} else {
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Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args);
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Success = false;
|
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}
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}
|
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}
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Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
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Opts.OutputPath = Args.getLastArgValue(OPT_o);
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Opts.SplitDwarfOutput = Args.getLastArgValue(OPT_split_dwarf_output);
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if (Arg *A = Args.getLastArg(OPT_filetype)) {
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StringRef Name = A->getValue();
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unsigned OutputType = StringSwitch<unsigned>(Name)
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.Case("asm", FT_Asm)
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.Case("null", FT_Null)
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.Case("obj", FT_Obj)
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.Default(~0U);
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if (OutputType == ~0U) {
|
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Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
|
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Success = false;
|
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} else
|
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Opts.OutputType = FileType(OutputType);
|
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}
|
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Opts.ShowHelp = Args.hasArg(OPT_help);
|
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Opts.ShowVersion = Args.hasArg(OPT_version);
|
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|
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// Transliterate Options
|
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Opts.OutputAsmVariant =
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getLastArgIntValue(Args, OPT_output_asm_variant, 0, Diags);
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Opts.ShowEncoding = Args.hasArg(OPT_show_encoding);
|
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Opts.ShowInst = Args.hasArg(OPT_show_inst);
|
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|
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// Assemble Options
|
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Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
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Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack);
|
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Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings);
|
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Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic");
|
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Opts.TargetABI = Args.getLastArgValue(OPT_target_abi);
|
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Opts.IncrementalLinkerCompatible =
|
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Args.hasArg(OPT_mincremental_linker_compatible);
|
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Opts.SymbolDefs = Args.getAllArgValues(OPT_defsym);
|
||||
|
||||
// EmbedBitcode Option. If -fembed-bitcode is enabled, set the flag.
|
||||
// EmbedBitcode behaves the same for all embed options for assembly files.
|
||||
if (auto *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) {
|
||||
Opts.EmbedBitcode = llvm::StringSwitch<unsigned>(A->getValue())
|
||||
.Case("all", 1)
|
||||
.Case("bitcode", 1)
|
||||
.Case("marker", 1)
|
||||
.Default(0);
|
||||
}
|
||||
|
||||
return Success;
|
||||
}
|
||||
|
||||
static std::unique_ptr<raw_fd_ostream>
|
||||
getOutputStream(StringRef Path, DiagnosticsEngine &Diags, bool Binary) {
|
||||
// Make sure that the Out file gets unlinked from the disk if we get a
|
||||
// SIGINT.
|
||||
if (Path != "-")
|
||||
sys::RemoveFileOnSignal(Path);
|
||||
|
||||
std::error_code EC;
|
||||
auto Out = llvm::make_unique<raw_fd_ostream>(
|
||||
Path, EC, (Binary ? sys::fs::F_None : sys::fs::F_Text));
|
||||
if (EC) {
|
||||
Diags.Report(diag::err_fe_unable_to_open_output) << Path << EC.message();
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
return Out;
|
||||
}
|
||||
|
||||
bool ExecuteAssembler(AssemblerInvocation &Opts, DiagnosticsEngine &Diags) {
|
||||
// Get the target specific parser.
|
||||
std::string Error;
|
||||
const Target *TheTarget = TargetRegistry::lookupTarget(Opts.Triple, Error);
|
||||
if (!TheTarget)
|
||||
return Diags.Report(diag::err_target_unknown_triple) << Opts.Triple;
|
||||
|
||||
ErrorOr<std::unique_ptr<MemoryBuffer>> Buffer =
|
||||
MemoryBuffer::getFileOrSTDIN(Opts.InputFile);
|
||||
|
||||
if (std::error_code EC = Buffer.getError()) {
|
||||
Error = EC.message();
|
||||
return Diags.Report(diag::err_fe_error_reading) << Opts.InputFile;
|
||||
}
|
||||
|
||||
SourceMgr SrcMgr;
|
||||
|
||||
// Tell SrcMgr about this buffer, which is what the parser will pick up.
|
||||
unsigned BufferIndex = SrcMgr.AddNewSourceBuffer(std::move(*Buffer), SMLoc());
|
||||
|
||||
// Record the location of the include directories so that the lexer can find
|
||||
// it later.
|
||||
SrcMgr.setIncludeDirs(Opts.IncludePaths);
|
||||
|
||||
std::unique_ptr<MCRegisterInfo> MRI(TheTarget->createMCRegInfo(Opts.Triple));
|
||||
assert(MRI && "Unable to create target register info!");
|
||||
|
||||
std::unique_ptr<MCAsmInfo> MAI(TheTarget->createMCAsmInfo(*MRI, Opts.Triple));
|
||||
assert(MAI && "Unable to create target asm info!");
|
||||
|
||||
// Ensure MCAsmInfo initialization occurs before any use, otherwise sections
|
||||
// may be created with a combination of default and explicit settings.
|
||||
MAI->setCompressDebugSections(Opts.CompressDebugSections);
|
||||
|
||||
MAI->setRelaxELFRelocations(Opts.RelaxELFRelocations);
|
||||
|
||||
bool IsBinary = Opts.OutputType == AssemblerInvocation::FT_Obj;
|
||||
if (Opts.OutputPath.empty())
|
||||
Opts.OutputPath = "-";
|
||||
std::unique_ptr<raw_fd_ostream> FDOS =
|
||||
getOutputStream(Opts.OutputPath, Diags, IsBinary);
|
||||
if (!FDOS)
|
||||
return true;
|
||||
std::unique_ptr<raw_fd_ostream> DwoOS;
|
||||
if (!Opts.SplitDwarfOutput.empty())
|
||||
DwoOS = getOutputStream(Opts.SplitDwarfOutput, Diags, IsBinary);
|
||||
|
||||
// FIXME: This is not pretty. MCContext has a ptr to MCObjectFileInfo and
|
||||
// MCObjectFileInfo needs a MCContext reference in order to initialize itself.
|
||||
std::unique_ptr<MCObjectFileInfo> MOFI(new MCObjectFileInfo());
|
||||
|
||||
MCContext Ctx(MAI.get(), MRI.get(), MOFI.get(), &SrcMgr);
|
||||
|
||||
bool PIC = false;
|
||||
if (Opts.RelocationModel == "static") {
|
||||
PIC = false;
|
||||
} else if (Opts.RelocationModel == "pic") {
|
||||
PIC = true;
|
||||
} else {
|
||||
assert(Opts.RelocationModel == "dynamic-no-pic" &&
|
||||
"Invalid PIC model!");
|
||||
PIC = false;
|
||||
}
|
||||
|
||||
MOFI->InitMCObjectFileInfo(Triple(Opts.Triple), PIC, Ctx);
|
||||
if (Opts.SaveTemporaryLabels)
|
||||
Ctx.setAllowTemporaryLabels(false);
|
||||
if (Opts.GenDwarfForAssembly)
|
||||
Ctx.setGenDwarfForAssembly(true);
|
||||
if (!Opts.DwarfDebugFlags.empty())
|
||||
Ctx.setDwarfDebugFlags(StringRef(Opts.DwarfDebugFlags));
|
||||
if (!Opts.DwarfDebugProducer.empty())
|
||||
Ctx.setDwarfDebugProducer(StringRef(Opts.DwarfDebugProducer));
|
||||
if (!Opts.DebugCompilationDir.empty())
|
||||
Ctx.setCompilationDir(Opts.DebugCompilationDir);
|
||||
else {
|
||||
// If no compilation dir is set, try to use the current directory.
|
||||
SmallString<128> CWD;
|
||||
if (!sys::fs::current_path(CWD))
|
||||
Ctx.setCompilationDir(CWD);
|
||||
}
|
||||
if (!Opts.DebugPrefixMap.empty())
|
||||
for (const auto &KV : Opts.DebugPrefixMap)
|
||||
Ctx.addDebugPrefixMapEntry(KV.first, KV.second);
|
||||
if (!Opts.MainFileName.empty())
|
||||
Ctx.setMainFileName(StringRef(Opts.MainFileName));
|
||||
Ctx.setDwarfVersion(Opts.DwarfVersion);
|
||||
if (Opts.GenDwarfForAssembly)
|
||||
Ctx.setGenDwarfRootFile(Opts.InputFile,
|
||||
SrcMgr.getMemoryBuffer(BufferIndex)->getBuffer());
|
||||
|
||||
// Build up the feature string from the target feature list.
|
||||
std::string FS;
|
||||
if (!Opts.Features.empty()) {
|
||||
FS = Opts.Features[0];
|
||||
for (unsigned i = 1, e = Opts.Features.size(); i != e; ++i)
|
||||
FS += "," + Opts.Features[i];
|
||||
}
|
||||
|
||||
std::unique_ptr<MCStreamer> Str;
|
||||
|
||||
std::unique_ptr<MCInstrInfo> MCII(TheTarget->createMCInstrInfo());
|
||||
std::unique_ptr<MCSubtargetInfo> STI(
|
||||
TheTarget->createMCSubtargetInfo(Opts.Triple, Opts.CPU, FS));
|
||||
|
||||
raw_pwrite_stream *Out = FDOS.get();
|
||||
std::unique_ptr<buffer_ostream> BOS;
|
||||
|
||||
MCTargetOptions MCOptions;
|
||||
MCOptions.ABIName = Opts.TargetABI;
|
||||
|
||||
// FIXME: There is a bit of code duplication with addPassesToEmitFile.
|
||||
if (Opts.OutputType == AssemblerInvocation::FT_Asm) {
|
||||
MCInstPrinter *IP = TheTarget->createMCInstPrinter(
|
||||
llvm::Triple(Opts.Triple), Opts.OutputAsmVariant, *MAI, *MCII, *MRI);
|
||||
|
||||
std::unique_ptr<MCCodeEmitter> CE;
|
||||
if (Opts.ShowEncoding)
|
||||
CE.reset(TheTarget->createMCCodeEmitter(*MCII, *MRI, Ctx));
|
||||
std::unique_ptr<MCAsmBackend> MAB(
|
||||
TheTarget->createMCAsmBackend(*STI, *MRI, MCOptions));
|
||||
|
||||
auto FOut = llvm::make_unique<formatted_raw_ostream>(*Out);
|
||||
Str.reset(TheTarget->createAsmStreamer(
|
||||
Ctx, std::move(FOut), /*asmverbose*/ true,
|
||||
/*useDwarfDirectory*/ true, IP, std::move(CE), std::move(MAB),
|
||||
Opts.ShowInst));
|
||||
} else if (Opts.OutputType == AssemblerInvocation::FT_Null) {
|
||||
Str.reset(createNullStreamer(Ctx));
|
||||
} else {
|
||||
assert(Opts.OutputType == AssemblerInvocation::FT_Obj &&
|
||||
"Invalid file type!");
|
||||
if (!FDOS->supportsSeeking()) {
|
||||
BOS = make_unique<buffer_ostream>(*FDOS);
|
||||
Out = BOS.get();
|
||||
}
|
||||
|
||||
std::unique_ptr<MCCodeEmitter> CE(
|
||||
TheTarget->createMCCodeEmitter(*MCII, *MRI, Ctx));
|
||||
std::unique_ptr<MCAsmBackend> MAB(
|
||||
TheTarget->createMCAsmBackend(*STI, *MRI, MCOptions));
|
||||
std::unique_ptr<MCObjectWriter> OW =
|
||||
DwoOS ? MAB->createDwoObjectWriter(*Out, *DwoOS)
|
||||
: MAB->createObjectWriter(*Out);
|
||||
|
||||
Triple T(Opts.Triple);
|
||||
Str.reset(TheTarget->createMCObjectStreamer(
|
||||
T, Ctx, std::move(MAB), std::move(OW), std::move(CE), *STI,
|
||||
Opts.RelaxAll, Opts.IncrementalLinkerCompatible,
|
||||
/*DWARFMustBeAtTheEnd*/ true));
|
||||
Str.get()->InitSections(Opts.NoExecStack);
|
||||
}
|
||||
|
||||
// When -fembed-bitcode is passed to clang_as, a 1-byte marker
|
||||
// is emitted in __LLVM,__asm section if the object file is MachO format.
|
||||
if (Opts.EmbedBitcode && Ctx.getObjectFileInfo()->getObjectFileType() ==
|
||||
MCObjectFileInfo::IsMachO) {
|
||||
MCSection *AsmLabel = Ctx.getMachOSection(
|
||||
"__LLVM", "__asm", MachO::S_REGULAR, 4, SectionKind::getReadOnly());
|
||||
Str.get()->SwitchSection(AsmLabel);
|
||||
Str.get()->EmitZeros(1);
|
||||
}
|
||||
|
||||
// Assembly to object compilation should leverage assembly info.
|
||||
Str->setUseAssemblerInfoForParsing(true);
|
||||
|
||||
bool Failed = false;
|
||||
|
||||
std::unique_ptr<MCAsmParser> Parser(
|
||||
createMCAsmParser(SrcMgr, Ctx, *Str.get(), *MAI));
|
||||
|
||||
// FIXME: init MCTargetOptions from sanitizer flags here.
|
||||
std::unique_ptr<MCTargetAsmParser> TAP(
|
||||
TheTarget->createMCAsmParser(*STI, *Parser, *MCII, MCOptions));
|
||||
if (!TAP)
|
||||
Failed = Diags.Report(diag::err_target_unknown_triple) << Opts.Triple;
|
||||
|
||||
// Set values for symbols, if any.
|
||||
for (auto &S : Opts.SymbolDefs) {
|
||||
auto Pair = StringRef(S).split('=');
|
||||
auto Sym = Pair.first;
|
||||
auto Val = Pair.second;
|
||||
int64_t Value;
|
||||
// We have already error checked this in the driver.
|
||||
Val.getAsInteger(0, Value);
|
||||
Ctx.setSymbolValue(Parser->getStreamer(), Sym, Value);
|
||||
}
|
||||
|
||||
if (!Failed) {
|
||||
Parser->setTargetParser(*TAP.get());
|
||||
Failed = Parser->Run(Opts.NoInitialTextSection);
|
||||
}
|
||||
|
||||
// Close Streamer first.
|
||||
// It might have a reference to the output stream.
|
||||
Str.reset();
|
||||
// Close the output stream early.
|
||||
BOS.reset();
|
||||
FDOS.reset();
|
||||
|
||||
// Delete output file if there were errors.
|
||||
if (Failed) {
|
||||
if (Opts.OutputPath != "-")
|
||||
sys::fs::remove(Opts.OutputPath);
|
||||
if (!Opts.SplitDwarfOutput.empty() && Opts.SplitDwarfOutput != "-")
|
||||
sys::fs::remove(Opts.SplitDwarfOutput);
|
||||
}
|
||||
|
||||
return Failed;
|
||||
}
|
||||
|
||||
static void LLVMErrorHandler(void *UserData, const std::string &Message,
|
||||
bool GenCrashDiag) {
|
||||
DiagnosticsEngine &Diags = *static_cast<DiagnosticsEngine*>(UserData);
|
||||
|
||||
Diags.Report(diag::err_fe_error_backend) << Message;
|
||||
|
||||
// We cannot recover from llvm errors.
|
||||
exit(1);
|
||||
}
|
||||
|
||||
int cc1as_main(ArrayRef<const char *> Argv, const char *Argv0, void *MainAddr) {
|
||||
// Initialize targets and assembly printers/parsers.
|
||||
InitializeAllTargetInfos();
|
||||
InitializeAllTargetMCs();
|
||||
InitializeAllAsmParsers();
|
||||
|
||||
// Construct our diagnostic client.
|
||||
IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
|
||||
TextDiagnosticPrinter *DiagClient
|
||||
= new TextDiagnosticPrinter(errs(), &*DiagOpts);
|
||||
DiagClient->setPrefix("clang -cc1as");
|
||||
IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs());
|
||||
DiagnosticsEngine Diags(DiagID, &*DiagOpts, DiagClient);
|
||||
|
||||
// Set an error handler, so that any LLVM backend diagnostics go through our
|
||||
// error handler.
|
||||
ScopedFatalErrorHandler FatalErrorHandler
|
||||
(LLVMErrorHandler, static_cast<void*>(&Diags));
|
||||
|
||||
// Parse the arguments.
|
||||
AssemblerInvocation Asm;
|
||||
if (!AssemblerInvocation::CreateFromArgs(Asm, Argv, Diags))
|
||||
return 1;
|
||||
|
||||
if (Asm.ShowHelp) {
|
||||
std::unique_ptr<OptTable> Opts(driver::createDriverOptTable());
|
||||
Opts->PrintHelp(llvm::outs(), "clang -cc1as [options] file...",
|
||||
"Clang Integrated Assembler",
|
||||
/*Include=*/driver::options::CC1AsOption, /*Exclude=*/0,
|
||||
/*ShowAllAliases=*/false);
|
||||
return 0;
|
||||
}
|
||||
|
||||
// Honor -version.
|
||||
//
|
||||
// FIXME: Use a better -version message?
|
||||
if (Asm.ShowVersion) {
|
||||
llvm::cl::PrintVersionMessage();
|
||||
return 0;
|
||||
}
|
||||
|
||||
// Honor -mllvm.
|
||||
//
|
||||
// FIXME: Remove this, one day.
|
||||
if (!Asm.LLVMArgs.empty()) {
|
||||
unsigned NumArgs = Asm.LLVMArgs.size();
|
||||
auto Args = llvm::make_unique<const char*[]>(NumArgs + 2);
|
||||
Args[0] = "clang (LLVM option parsing)";
|
||||
for (unsigned i = 0; i != NumArgs; ++i)
|
||||
Args[i + 1] = Asm.LLVMArgs[i].c_str();
|
||||
Args[NumArgs + 1] = nullptr;
|
||||
llvm::cl::ParseCommandLineOptions(NumArgs + 1, Args.get());
|
||||
}
|
||||
|
||||
// Execute the invocation, unless there were parsing errors.
|
||||
bool Failed = Diags.hasErrorOccurred() || ExecuteAssembler(Asm, Diags);
|
||||
|
||||
// If any timers were active but haven't been destroyed yet, print their
|
||||
// results now.
|
||||
TimerGroup::printAll(errs());
|
||||
|
||||
return !!Failed;
|
||||
}
|
||||
120
builder/cc1as.h
Обычный файл
120
builder/cc1as.h
Обычный файл
|
|
@ -0,0 +1,120 @@
|
|||
//===-- cc1as.h - Clang Assembler ----------------------------------------===//
|
||||
//
|
||||
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||||
// See https://llvm.org/LICENSE.txt for license information.
|
||||
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// This is the entry point to the clang -cc1as functionality, which implements
|
||||
// the direct interface to the LLVM MC based assembler.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#include "llvm/ADT/ArrayRef.h"
|
||||
|
||||
/// Helper class for representing a single invocation of the assembler.
|
||||
struct AssemblerInvocation {
|
||||
/// @name Target Options
|
||||
/// @{
|
||||
|
||||
/// The name of the target triple to assemble for.
|
||||
std::string Triple;
|
||||
|
||||
/// If given, the name of the target CPU to determine which instructions
|
||||
/// are legal.
|
||||
std::string CPU;
|
||||
|
||||
/// The list of target specific features to enable or disable -- this should
|
||||
/// be a list of strings starting with '+' or '-'.
|
||||
std::vector<std::string> Features;
|
||||
|
||||
/// The list of symbol definitions.
|
||||
std::vector<std::string> SymbolDefs;
|
||||
|
||||
/// @}
|
||||
/// @name Language Options
|
||||
/// @{
|
||||
|
||||
std::vector<std::string> IncludePaths;
|
||||
unsigned NoInitialTextSection : 1;
|
||||
unsigned SaveTemporaryLabels : 1;
|
||||
unsigned GenDwarfForAssembly : 1;
|
||||
unsigned RelaxELFRelocations : 1;
|
||||
unsigned DwarfVersion;
|
||||
std::string DwarfDebugFlags;
|
||||
std::string DwarfDebugProducer;
|
||||
std::string DebugCompilationDir;
|
||||
std::map<const std::string, const std::string> DebugPrefixMap;
|
||||
llvm::DebugCompressionType CompressDebugSections =
|
||||
llvm::DebugCompressionType::None;
|
||||
std::string MainFileName;
|
||||
std::string SplitDwarfOutput;
|
||||
|
||||
/// @}
|
||||
/// @name Frontend Options
|
||||
/// @{
|
||||
|
||||
std::string InputFile;
|
||||
std::vector<std::string> LLVMArgs;
|
||||
std::string OutputPath;
|
||||
enum FileType {
|
||||
FT_Asm, ///< Assembly (.s) output, transliterate mode.
|
||||
FT_Null, ///< No output, for timing purposes.
|
||||
FT_Obj ///< Object file output.
|
||||
};
|
||||
FileType OutputType;
|
||||
unsigned ShowHelp : 1;
|
||||
unsigned ShowVersion : 1;
|
||||
|
||||
/// @}
|
||||
/// @name Transliterate Options
|
||||
/// @{
|
||||
|
||||
unsigned OutputAsmVariant;
|
||||
unsigned ShowEncoding : 1;
|
||||
unsigned ShowInst : 1;
|
||||
|
||||
/// @}
|
||||
/// @name Assembler Options
|
||||
/// @{
|
||||
|
||||
unsigned RelaxAll : 1;
|
||||
unsigned NoExecStack : 1;
|
||||
unsigned FatalWarnings : 1;
|
||||
unsigned IncrementalLinkerCompatible : 1;
|
||||
unsigned EmbedBitcode : 1;
|
||||
|
||||
/// The name of the relocation model to use.
|
||||
std::string RelocationModel;
|
||||
|
||||
/// The ABI targeted by the backend. Specified using -target-abi. Empty
|
||||
/// otherwise.
|
||||
std::string TargetABI;
|
||||
|
||||
/// @}
|
||||
|
||||
public:
|
||||
AssemblerInvocation() {
|
||||
Triple = "";
|
||||
NoInitialTextSection = 0;
|
||||
InputFile = "-";
|
||||
OutputPath = "-";
|
||||
OutputType = FT_Asm;
|
||||
OutputAsmVariant = 0;
|
||||
ShowInst = 0;
|
||||
ShowEncoding = 0;
|
||||
RelaxAll = 0;
|
||||
NoExecStack = 0;
|
||||
FatalWarnings = 0;
|
||||
IncrementalLinkerCompatible = 0;
|
||||
DwarfVersion = 0;
|
||||
EmbedBitcode = 0;
|
||||
}
|
||||
|
||||
static bool CreateFromArgs(AssemblerInvocation &Res,
|
||||
ArrayRef<const char *> Argv,
|
||||
DiagnosticsEngine &Diags);
|
||||
};
|
||||
|
||||
bool ExecuteAssembler(AssemblerInvocation &Opts, DiagnosticsEngine &Diags);
|
||||
97
builder/clang.cpp
Обычный файл
97
builder/clang.cpp
Обычный файл
|
|
@ -0,0 +1,97 @@
|
|||
// +build byollvm
|
||||
|
||||
#include <clang/Basic/DiagnosticOptions.h>
|
||||
#include <clang/CodeGen/CodeGenAction.h>
|
||||
#include <clang/Driver/Compilation.h>
|
||||
#include <clang/Driver/Driver.h>
|
||||
#include <clang/Frontend/CompilerInstance.h>
|
||||
#include <clang/Frontend/CompilerInvocation.h>
|
||||
#include <clang/Frontend/FrontendDiagnostic.h>
|
||||
#include <clang/Frontend/TextDiagnosticPrinter.h>
|
||||
#include <clang/FrontendTool/Utils.h>
|
||||
#include <llvm/ADT/IntrusiveRefCntPtr.h>
|
||||
#include <llvm/Option/Option.h>
|
||||
|
||||
using namespace llvm;
|
||||
using namespace clang;
|
||||
|
||||
#include "cc1as.h"
|
||||
|
||||
// This file provides C wrappers for the builtin tools cc1 and cc1as
|
||||
// provided by Clang, and calls them as the driver would call them.
|
||||
|
||||
extern "C" {
|
||||
|
||||
bool tinygo_clang_driver(int argc, char **argv) {
|
||||
std::vector<const char*> args(argv, argv + argc);
|
||||
|
||||
// The compiler invocation needs a DiagnosticsEngine so it can report problems
|
||||
llvm::IntrusiveRefCntPtr<clang::DiagnosticOptions> DiagOpts = new clang::DiagnosticOptions();
|
||||
clang::TextDiagnosticPrinter DiagnosticPrinter(llvm::errs(), &*DiagOpts);
|
||||
clang::DiagnosticsEngine Diags(llvm::IntrusiveRefCntPtr<clang::DiagnosticIDs>(new clang::DiagnosticIDs()), &*DiagOpts, &DiagnosticPrinter, false);
|
||||
|
||||
// Create the clang driver
|
||||
clang::driver::Driver TheDriver(args[0], llvm::sys::getDefaultTargetTriple(), Diags);
|
||||
|
||||
// Create the set of actions to perform
|
||||
std::unique_ptr<clang::driver::Compilation> C(TheDriver.BuildCompilation(args));
|
||||
if (!C) {
|
||||
return false;
|
||||
}
|
||||
const clang::driver::JobList &Jobs = C->getJobs();
|
||||
|
||||
// There may be more than one job, for example for .S files
|
||||
// (preprocessor + assembler).
|
||||
for (auto Cmd : Jobs) {
|
||||
// Select the tool: cc1 or cc1as.
|
||||
const llvm::opt::ArgStringList &CCArgs = Cmd.getArguments();
|
||||
|
||||
if (strcmp(*CCArgs.data(), "-cc1") == 0) {
|
||||
// This is the C frontend.
|
||||
// Initialize a compiler invocation object from the clang (-cc1) arguments.
|
||||
std::unique_ptr<clang::CompilerInstance> Clang(new clang::CompilerInstance());
|
||||
bool success = clang::CompilerInvocation::CreateFromArgs(
|
||||
Clang->getInvocation(),
|
||||
const_cast<const char **>(CCArgs.data()),
|
||||
const_cast<const char **>(CCArgs.data()) + CCArgs.size(),
|
||||
Diags);
|
||||
if (!success) {
|
||||
return false;
|
||||
}
|
||||
|
||||
// Create the actual diagnostics engine.
|
||||
Clang->createDiagnostics();
|
||||
if (!Clang->hasDiagnostics()) {
|
||||
return false;
|
||||
}
|
||||
|
||||
// Execute the frontend actions.
|
||||
success = ExecuteCompilerInvocation(Clang.get());
|
||||
if (!success) {
|
||||
return false;
|
||||
}
|
||||
|
||||
} else if (strcmp(*CCArgs.data(), "-cc1as") == 0) {
|
||||
// This is the assembler frontend. Parse the arguments.
|
||||
AssemblerInvocation Asm;
|
||||
if (!AssemblerInvocation::CreateFromArgs(Asm, llvm::ArrayRef<const char*>(CCArgs).slice(1), Diags))
|
||||
return false;
|
||||
|
||||
// Execute the invocation, unless there were parsing errors.
|
||||
bool failed = Diags.hasErrorOccurred() || ExecuteAssembler(Asm, Diags);
|
||||
if (failed) {
|
||||
return false;
|
||||
}
|
||||
|
||||
} else {
|
||||
// Unknown tool, print the tool and exit.
|
||||
fprintf(stderr, "unknown tool: %s\n", *CCArgs.data());
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
// Commands executed successfully.
|
||||
return true;
|
||||
}
|
||||
|
||||
} // extern "C"
|
||||
56
builder/compiler-builtin.go
Обычный файл
56
builder/compiler-builtin.go
Обычный файл
|
|
@ -0,0 +1,56 @@
|
|||
// +build byollvm
|
||||
|
||||
package builder
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"os"
|
||||
"os/exec"
|
||||
"unsafe"
|
||||
|
||||
"github.com/tinygo-org/tinygo/goenv"
|
||||
)
|
||||
|
||||
/*
|
||||
#cgo CXXFLAGS: -fno-rtti
|
||||
#include <stdbool.h>
|
||||
#include <stdlib.h>
|
||||
bool tinygo_clang_driver(int argc, char **argv);
|
||||
*/
|
||||
import "C"
|
||||
|
||||
// runCCompiler invokes a C compiler with the given arguments.
|
||||
//
|
||||
// This version invokes the built-in Clang when trying to run the Clang compiler.
|
||||
func runCCompiler(command string, flags ...string) error {
|
||||
switch command {
|
||||
case "clang":
|
||||
// Compile this with the internal Clang compiler.
|
||||
flags = append(flags, "-I"+getClangHeaderPath(goenv.Get("TINYGOROOT")))
|
||||
flags = append([]string{"tinygo:" + command}, flags...)
|
||||
var cflag *C.char
|
||||
buf := C.calloc(C.size_t(len(flags)), C.size_t(unsafe.Sizeof(cflag)))
|
||||
cflags := (*[1 << 10]*C.char)(unsafe.Pointer(buf))[:len(flags):len(flags)]
|
||||
for i, flag := range flags {
|
||||
cflag := C.CString(flag)
|
||||
cflags[i] = cflag
|
||||
defer C.free(unsafe.Pointer(cflag))
|
||||
}
|
||||
ok := C.tinygo_clang_driver(C.int(len(flags)), (**C.char)(buf))
|
||||
if !ok {
|
||||
return errors.New("failed to compile using built-in clang")
|
||||
}
|
||||
return nil
|
||||
default:
|
||||
// Running some other compiler. Maybe it has been defined in the
|
||||
// commands map (unlikely).
|
||||
if cmdNames, ok := commands[command]; ok {
|
||||
return execCommand(cmdNames, flags...)
|
||||
}
|
||||
// Alternatively, run the compiler directly.
|
||||
cmd := exec.Command(command, flags...)
|
||||
cmd.Stdout = os.Stdout
|
||||
cmd.Stderr = os.Stderr
|
||||
return cmd.Run()
|
||||
}
|
||||
}
|
||||
24
builder/compiler-external.go
Обычный файл
24
builder/compiler-external.go
Обычный файл
|
|
@ -0,0 +1,24 @@
|
|||
// +build !byollvm
|
||||
|
||||
package builder
|
||||
|
||||
// This file provides a way to a C compiler as an external command. See also:
|
||||
// clang-external.go
|
||||
|
||||
import (
|
||||
"os"
|
||||
"os/exec"
|
||||
)
|
||||
|
||||
// runCCompiler invokes a C compiler with the given arguments.
|
||||
//
|
||||
// This version always runs the compiler as an external command.
|
||||
func runCCompiler(command string, flags ...string) error {
|
||||
if cmdNames, ok := commands[command]; ok {
|
||||
return execCommand(cmdNames, flags...)
|
||||
}
|
||||
cmd := exec.Command(command, flags...)
|
||||
cmd.Stdout = os.Stdout
|
||||
cmd.Stderr = os.Stderr
|
||||
return cmd.Run()
|
||||
}
|
||||
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