mirror of
https://github.com/carbon-language/carbon-lang.git
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66 lines
1.9 KiB
C++
66 lines
1.9 KiB
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 <unistd.h>
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#include <cstdlib>
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#include "common/bazel_working_dir.h"
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#include "common/error.h"
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#include "common/exe_path.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 "llvm/Support/LLVMDriver.h"
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#include "toolchain/driver/driver.h"
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#include "toolchain/install/busybox_info.h"
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#include "toolchain/install/install_paths.h"
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namespace Carbon {
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// The actual `main` implementation. Can return an exit code or an `Error`
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// (which causes EXIT_FAILRUE).
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static auto Main(int argc, char** argv) -> ErrorOr<int> {
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InitLLVM init_llvm(argc, argv);
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// Start by resolving any symlinks.
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CARBON_ASSIGN_OR_RETURN(auto busybox_info,
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GetBusyboxInfo(FindExecutablePath(argv[0])));
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auto fs = llvm::vfs::getRealFileSystem();
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// Resolve paths before calling SetWorkingDirForBazel.
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std::string exe_path = busybox_info.bin_path.string();
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const auto install_paths = InstallPaths::MakeExeRelative(exe_path);
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if (install_paths.error()) {
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return Error(*install_paths.error());
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}
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SetWorkingDirForBazel();
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llvm::SmallVector<llvm::StringRef> args;
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args.reserve(argc + 1);
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if (busybox_info.mode) {
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args.append({*busybox_info.mode, "--"});
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}
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args.append(argv + 1, argv + argc);
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Driver driver(fs, &install_paths, stdin, &llvm::outs(), &llvm::errs(),
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/*fuzzing=*/false, /*enable_leaking=*/true);
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bool success = driver.RunCommand(args).success;
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return success ? EXIT_SUCCESS : EXIT_FAILURE;
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}
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} // namespace Carbon
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auto main(int argc, char** argv) -> int {
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auto result = Carbon::Main(argc, argv);
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if (result.ok()) {
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return *result;
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} else {
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llvm::errs() << "error: " << result.error() << "\n";
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return EXIT_FAILURE;
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}
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}
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