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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
151 lines
3.8 KiB
C++
151 lines
3.8 KiB
C++
//===- Version.cpp - Clang Version Number -----------------------*- C++ -*-===//
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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 file defines several version-related utility functions for Clang.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Basic/Version.h"
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#include "clang/Basic/LLVM.h"
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#include "clang/Config/config.h"
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#include "llvm/Support/raw_ostream.h"
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#include <cstdlib>
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#include <cstring>
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#ifdef HAVE_SVN_VERSION_INC
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# include "SVNVersion.inc"
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#endif
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namespace clang {
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std::string getClangRepositoryPath() {
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#if defined(CLANG_REPOSITORY_STRING)
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return CLANG_REPOSITORY_STRING;
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#else
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#ifdef SVN_REPOSITORY
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StringRef URL(SVN_REPOSITORY);
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#else
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StringRef URL("");
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#endif
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// If the SVN_REPOSITORY is empty, try to use the SVN keyword. This helps us
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// pick up a tag in an SVN export, for example.
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StringRef SVNRepository("$URL$");
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if (URL.empty()) {
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URL = SVNRepository.slice(SVNRepository.find(':'),
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SVNRepository.find("/lib/Basic"));
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}
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// Strip off version from a build from an integration branch.
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URL = URL.slice(0, URL.find("/src/tools/clang"));
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// Trim path prefix off, assuming path came from standard cfe path.
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size_t Start = URL.find("cfe/");
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if (Start != StringRef::npos)
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URL = URL.substr(Start + 4);
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return URL;
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#endif
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}
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std::string getLLVMRepositoryPath() {
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#ifdef LLVM_REPOSITORY
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StringRef URL(LLVM_REPOSITORY);
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#else
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StringRef URL("");
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#endif
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// Trim path prefix off, assuming path came from standard llvm path.
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// Leave "llvm/" prefix to distinguish the following llvm revision from the
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// clang revision.
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size_t Start = URL.find("llvm/");
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if (Start != StringRef::npos)
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URL = URL.substr(Start);
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return URL;
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}
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std::string getClangRevision() {
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#ifdef SVN_REVISION
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return SVN_REVISION;
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#else
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return "";
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#endif
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}
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std::string getLLVMRevision() {
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#ifdef LLVM_REVISION
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return LLVM_REVISION;
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#else
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return "";
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#endif
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}
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std::string getClangFullRepositoryVersion() {
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std::string buf;
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llvm::raw_string_ostream OS(buf);
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std::string Path = getClangRepositoryPath();
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std::string Revision = getClangRevision();
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if (!Path.empty() || !Revision.empty()) {
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OS << '(';
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if (!Path.empty())
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OS << Path;
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if (!Revision.empty()) {
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if (!Path.empty())
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OS << ' ';
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OS << Revision;
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}
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OS << ')';
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}
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// Support LLVM in a separate repository.
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std::string LLVMRev = getLLVMRevision();
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if (!LLVMRev.empty() && LLVMRev != Revision) {
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OS << " (";
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std::string LLVMRepo = getLLVMRepositoryPath();
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if (!LLVMRepo.empty())
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OS << LLVMRepo << ' ';
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OS << LLVMRev << ')';
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}
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return OS.str();
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}
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std::string getClangFullVersion() {
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return getClangToolFullVersion("clang");
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}
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std::string getClangToolFullVersion(StringRef ToolName) {
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std::string buf;
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llvm::raw_string_ostream OS(buf);
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#ifdef CLANG_VENDOR
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OS << CLANG_VENDOR;
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#endif
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OS << ToolName << " version " CLANG_VERSION_STRING " "
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<< getClangFullRepositoryVersion();
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// If vendor supplied, include the base LLVM version as well.
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#ifdef CLANG_VENDOR
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OS << " (based on " << BACKEND_PACKAGE_STRING << ")";
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#endif
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return OS.str();
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}
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std::string getClangFullCPPVersion() {
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// The version string we report in __VERSION__ is just a compacted version of
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// the one we report on the command line.
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std::string buf;
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llvm::raw_string_ostream OS(buf);
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#ifdef CLANG_VENDOR
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OS << CLANG_VENDOR;
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#endif
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OS << "Clang " CLANG_VERSION_STRING " " << getClangFullRepositoryVersion();
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return OS.str();
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}
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} // end namespace clang
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