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https://github.com/carbon-language/carbon-lang.git
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Richard SmithandJon Ross-Perkins
bf8697113a
Per their documentation, the `llvm::Initialize*` functions are only supposed to be called by the main program, not by a library like toolchain/codegen. Fixes a hang due to a data race in multithreaded autoupdate. Add a utility class `Carbon::InitLLVM` to do the common LLVM initialization shared by all Carbon tools, optionally including initializing the LLVM targets. Because the LLVM targets add a lot of binary size, only initialize them for binaries that opt in by depending on a new target `//common:all_llvm_targets`. Also fix `//explorer:file_test` and `//explorer:file_test.trace` to share a binary rather than linking an identical binary twice. --------- Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
32 lines
956 B
C++
32 lines
956 B
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#include <cstdlib>
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#include "common/bazel_working_dir.h"
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#include "common/init_llvm.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/StringRef.h"
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#include "toolchain/driver/driver.h"
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auto main(int argc, char** argv) -> int {
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Carbon::InitLLVM init_llvm(argc, argv);
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if (argc < 1) {
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return EXIT_FAILURE;
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}
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Carbon::SetWorkingDirForBazel();
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// Printing to stderr should flush stdout. This is most noticeable when stderr
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// is piped to stdout.
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llvm::errs().tie(&llvm::outs());
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llvm::SmallVector<llvm::StringRef> args(argv + 1, argv + argc);
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auto fs = llvm::vfs::getRealFileSystem();
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Carbon::Driver driver(*fs, llvm::outs(), llvm::errs());
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bool success = driver.RunCommand(args);
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return success ? EXIT_SUCCESS : EXIT_FAILURE;
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}
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