forked from OSchip/llvm-project
676 lines
25 KiB
C++
676 lines
25 KiB
C++
//===--- InitHeaderSearch.cpp - Initialize header search paths ------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the InitHeaderSearch class.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Frontend/Utils.h"
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#include "clang/Basic/FileManager.h"
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#include "clang/Basic/LangOptions.h"
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#include "clang/Config/config.h" // C_INCLUDE_DIRS
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#include "clang/Lex/HeaderMap.h"
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#include "clang/Lex/HeaderSearch.h"
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#include "clang/Lex/HeaderSearchOptions.h"
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#include "llvm/ADT/SmallPtrSet.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/ADT/Triple.h"
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#include "llvm/ADT/Twine.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/Path.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace clang;
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using namespace clang::frontend;
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namespace {
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/// InitHeaderSearch - This class makes it easier to set the search paths of
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/// a HeaderSearch object. InitHeaderSearch stores several search path lists
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/// internally, which can be sent to a HeaderSearch object in one swoop.
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class InitHeaderSearch {
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std::vector<std::pair<IncludeDirGroup, DirectoryLookup> > IncludePath;
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typedef std::vector<std::pair<IncludeDirGroup,
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DirectoryLookup> >::const_iterator path_iterator;
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std::vector<std::pair<std::string, bool> > SystemHeaderPrefixes;
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HeaderSearch &Headers;
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bool Verbose;
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std::string IncludeSysroot;
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bool HasSysroot;
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public:
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InitHeaderSearch(HeaderSearch &HS, bool verbose, StringRef sysroot)
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: Headers(HS), Verbose(verbose), IncludeSysroot(sysroot),
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HasSysroot(!(sysroot.empty() || sysroot == "/")) {
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}
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/// AddPath - Add the specified path to the specified group list, prefixing
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/// the sysroot if used.
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void AddPath(const Twine &Path, IncludeDirGroup Group, bool isFramework);
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/// AddUnmappedPath - Add the specified path to the specified group list,
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/// without performing any sysroot remapping.
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void AddUnmappedPath(const Twine &Path, IncludeDirGroup Group,
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bool isFramework);
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/// AddSystemHeaderPrefix - Add the specified prefix to the system header
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/// prefix list.
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void AddSystemHeaderPrefix(StringRef Prefix, bool IsSystemHeader) {
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SystemHeaderPrefixes.emplace_back(Prefix, IsSystemHeader);
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}
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/// AddGnuCPlusPlusIncludePaths - Add the necessary paths to support a gnu
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/// libstdc++.
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void AddGnuCPlusPlusIncludePaths(StringRef Base,
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StringRef ArchDir,
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StringRef Dir32,
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StringRef Dir64,
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const llvm::Triple &triple);
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/// AddMinGWCPlusPlusIncludePaths - Add the necessary paths to support a MinGW
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/// libstdc++.
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void AddMinGWCPlusPlusIncludePaths(StringRef Base,
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StringRef Arch,
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StringRef Version);
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// AddDefaultCIncludePaths - Add paths that should always be searched.
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void AddDefaultCIncludePaths(const llvm::Triple &triple,
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const HeaderSearchOptions &HSOpts);
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// AddDefaultCPlusPlusIncludePaths - Add paths that should be searched when
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// compiling c++.
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void AddDefaultCPlusPlusIncludePaths(const llvm::Triple &triple,
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const HeaderSearchOptions &HSOpts);
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/// AddDefaultSystemIncludePaths - Adds the default system include paths so
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/// that e.g. stdio.h is found.
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void AddDefaultIncludePaths(const LangOptions &Lang,
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const llvm::Triple &triple,
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const HeaderSearchOptions &HSOpts);
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/// Realize - Merges all search path lists into one list and send it to
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/// HeaderSearch.
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void Realize(const LangOptions &Lang);
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};
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} // end anonymous namespace.
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static bool CanPrefixSysroot(StringRef Path) {
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#if defined(LLVM_ON_WIN32)
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return !Path.empty() && llvm::sys::path::is_separator(Path[0]);
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#else
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return llvm::sys::path::is_absolute(Path);
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#endif
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}
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void InitHeaderSearch::AddPath(const Twine &Path, IncludeDirGroup Group,
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bool isFramework) {
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// Add the path with sysroot prepended, if desired and this is a system header
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// group.
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if (HasSysroot) {
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SmallString<256> MappedPathStorage;
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StringRef MappedPathStr = Path.toStringRef(MappedPathStorage);
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if (CanPrefixSysroot(MappedPathStr)) {
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AddUnmappedPath(IncludeSysroot + Path, Group, isFramework);
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return;
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}
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}
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AddUnmappedPath(Path, Group, isFramework);
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}
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void InitHeaderSearch::AddUnmappedPath(const Twine &Path, IncludeDirGroup Group,
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bool isFramework) {
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assert(!Path.isTriviallyEmpty() && "can't handle empty path here");
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FileManager &FM = Headers.getFileMgr();
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SmallString<256> MappedPathStorage;
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StringRef MappedPathStr = Path.toStringRef(MappedPathStorage);
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// Compute the DirectoryLookup type.
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SrcMgr::CharacteristicKind Type;
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if (Group == Quoted || Group == Angled || Group == IndexHeaderMap) {
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Type = SrcMgr::C_User;
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} else if (Group == ExternCSystem) {
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Type = SrcMgr::C_ExternCSystem;
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} else {
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Type = SrcMgr::C_System;
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}
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// If the directory exists, add it.
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if (const DirectoryEntry *DE = FM.getDirectory(MappedPathStr)) {
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IncludePath.push_back(
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std::make_pair(Group, DirectoryLookup(DE, Type, isFramework)));
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return;
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}
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// Check to see if this is an apple-style headermap (which are not allowed to
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// be frameworks).
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if (!isFramework) {
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if (const FileEntry *FE = FM.getFile(MappedPathStr)) {
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if (const HeaderMap *HM = Headers.CreateHeaderMap(FE)) {
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// It is a headermap, add it to the search path.
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IncludePath.push_back(
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std::make_pair(Group,
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DirectoryLookup(HM, Type, Group == IndexHeaderMap)));
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return;
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}
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}
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}
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if (Verbose)
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llvm::errs() << "ignoring nonexistent directory \""
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<< MappedPathStr << "\"\n";
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}
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void InitHeaderSearch::AddGnuCPlusPlusIncludePaths(StringRef Base,
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StringRef ArchDir,
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StringRef Dir32,
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StringRef Dir64,
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const llvm::Triple &triple) {
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// Add the base dir
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AddPath(Base, CXXSystem, false);
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// Add the multilib dirs
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llvm::Triple::ArchType arch = triple.getArch();
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bool is64bit = arch == llvm::Triple::ppc64 || arch == llvm::Triple::x86_64;
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if (is64bit)
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AddPath(Base + "/" + ArchDir + "/" + Dir64, CXXSystem, false);
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else
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AddPath(Base + "/" + ArchDir + "/" + Dir32, CXXSystem, false);
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// Add the backward dir
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AddPath(Base + "/backward", CXXSystem, false);
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}
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void InitHeaderSearch::AddMinGWCPlusPlusIncludePaths(StringRef Base,
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StringRef Arch,
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StringRef Version) {
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AddPath(Base + "/" + Arch + "/" + Version + "/include/c++",
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CXXSystem, false);
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AddPath(Base + "/" + Arch + "/" + Version + "/include/c++/" + Arch,
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CXXSystem, false);
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AddPath(Base + "/" + Arch + "/" + Version + "/include/c++/backward",
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CXXSystem, false);
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}
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void InitHeaderSearch::AddDefaultCIncludePaths(const llvm::Triple &triple,
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const HeaderSearchOptions &HSOpts) {
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llvm::Triple::OSType os = triple.getOS();
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if (HSOpts.UseStandardSystemIncludes) {
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switch (os) {
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case llvm::Triple::CloudABI:
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case llvm::Triple::FreeBSD:
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case llvm::Triple::NetBSD:
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case llvm::Triple::OpenBSD:
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case llvm::Triple::Bitrig:
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case llvm::Triple::NaCl:
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case llvm::Triple::PS4:
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case llvm::Triple::ELFIAMCU:
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break;
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case llvm::Triple::Win32:
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if (triple.getEnvironment() != llvm::Triple::Cygnus)
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break;
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default:
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// FIXME: temporary hack: hard-coded paths.
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AddPath("/usr/local/include", System, false);
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break;
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}
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}
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// Builtin includes use #include_next directives and should be positioned
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// just prior C include dirs.
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if (HSOpts.UseBuiltinIncludes) {
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// Ignore the sys root, we *always* look for clang headers relative to
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// supplied path.
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SmallString<128> P = StringRef(HSOpts.ResourceDir);
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llvm::sys::path::append(P, "include");
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AddUnmappedPath(P, ExternCSystem, false);
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}
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// All remaining additions are for system include directories, early exit if
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// we aren't using them.
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if (!HSOpts.UseStandardSystemIncludes)
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return;
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// Add dirs specified via 'configure --with-c-include-dirs'.
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StringRef CIncludeDirs(C_INCLUDE_DIRS);
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if (CIncludeDirs != "") {
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SmallVector<StringRef, 5> dirs;
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CIncludeDirs.split(dirs, ":");
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for (StringRef dir : dirs)
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AddPath(dir, ExternCSystem, false);
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return;
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}
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switch (os) {
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case llvm::Triple::Linux:
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llvm_unreachable("Include management is handled in the driver.");
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case llvm::Triple::CloudABI: {
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// <sysroot>/<triple>/include
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SmallString<128> P = StringRef(HSOpts.ResourceDir);
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llvm::sys::path::append(P, "../../..", triple.str(), "include");
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AddPath(P, System, false);
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break;
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}
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case llvm::Triple::Haiku:
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AddPath("/boot/common/include", System, false);
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AddPath("/boot/develop/headers/os", System, false);
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AddPath("/boot/develop/headers/os/app", System, false);
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AddPath("/boot/develop/headers/os/arch", System, false);
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AddPath("/boot/develop/headers/os/device", System, false);
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AddPath("/boot/develop/headers/os/drivers", System, false);
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AddPath("/boot/develop/headers/os/game", System, false);
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AddPath("/boot/develop/headers/os/interface", System, false);
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AddPath("/boot/develop/headers/os/kernel", System, false);
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AddPath("/boot/develop/headers/os/locale", System, false);
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AddPath("/boot/develop/headers/os/mail", System, false);
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AddPath("/boot/develop/headers/os/media", System, false);
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AddPath("/boot/develop/headers/os/midi", System, false);
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AddPath("/boot/develop/headers/os/midi2", System, false);
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AddPath("/boot/develop/headers/os/net", System, false);
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AddPath("/boot/develop/headers/os/storage", System, false);
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AddPath("/boot/develop/headers/os/support", System, false);
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AddPath("/boot/develop/headers/os/translation", System, false);
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AddPath("/boot/develop/headers/os/add-ons/graphics", System, false);
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AddPath("/boot/develop/headers/os/add-ons/input_server", System, false);
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AddPath("/boot/develop/headers/os/add-ons/screen_saver", System, false);
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AddPath("/boot/develop/headers/os/add-ons/tracker", System, false);
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AddPath("/boot/develop/headers/os/be_apps/Deskbar", System, false);
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AddPath("/boot/develop/headers/os/be_apps/NetPositive", System, false);
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AddPath("/boot/develop/headers/os/be_apps/Tracker", System, false);
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AddPath("/boot/develop/headers/cpp", System, false);
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AddPath("/boot/develop/headers/cpp/i586-pc-haiku", System, false);
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AddPath("/boot/develop/headers/3rdparty", System, false);
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AddPath("/boot/develop/headers/bsd", System, false);
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AddPath("/boot/develop/headers/glibc", System, false);
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AddPath("/boot/develop/headers/posix", System, false);
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AddPath("/boot/develop/headers", System, false);
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break;
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case llvm::Triple::RTEMS:
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break;
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case llvm::Triple::Win32:
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switch (triple.getEnvironment()) {
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default: llvm_unreachable("Include management is handled in the driver.");
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case llvm::Triple::Cygnus:
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AddPath("/usr/include/w32api", System, false);
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break;
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case llvm::Triple::GNU:
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break;
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}
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break;
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default:
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break;
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}
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switch (os) {
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case llvm::Triple::CloudABI:
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case llvm::Triple::RTEMS:
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case llvm::Triple::NaCl:
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case llvm::Triple::ELFIAMCU:
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break;
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case llvm::Triple::PS4: {
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// <isysroot> gets prepended later in AddPath().
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std::string BaseSDKPath = "";
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if (!HasSysroot) {
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const char *envValue = getenv("SCE_PS4_SDK_DIR");
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if (envValue)
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BaseSDKPath = envValue;
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else {
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// HSOpts.ResourceDir variable contains the location of Clang's
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// resource files.
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// Assuming that Clang is configured for PS4 without
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// --with-clang-resource-dir option, the location of Clang's resource
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// files is <SDK_DIR>/host_tools/lib/clang
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SmallString<128> P = StringRef(HSOpts.ResourceDir);
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llvm::sys::path::append(P, "../../..");
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BaseSDKPath = P.str();
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}
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}
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AddPath(BaseSDKPath + "/target/include", System, false);
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if (triple.isPS4CPU())
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AddPath(BaseSDKPath + "/target/include_common", System, false);
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}
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default:
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AddPath("/usr/include", ExternCSystem, false);
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break;
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}
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}
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void InitHeaderSearch::
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AddDefaultCPlusPlusIncludePaths(const llvm::Triple &triple, const HeaderSearchOptions &HSOpts) {
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llvm::Triple::OSType os = triple.getOS();
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// FIXME: temporary hack: hard-coded paths.
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if (triple.isOSDarwin()) {
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switch (triple.getArch()) {
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default: break;
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case llvm::Triple::ppc:
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case llvm::Triple::ppc64:
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AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.2.1",
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"powerpc-apple-darwin10", "", "ppc64",
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triple);
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AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.0.0",
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"powerpc-apple-darwin10", "", "ppc64",
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triple);
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break;
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case llvm::Triple::x86:
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case llvm::Triple::x86_64:
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AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.2.1",
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"i686-apple-darwin10", "", "x86_64", triple);
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AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.0.0",
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"i686-apple-darwin8", "", "", triple);
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break;
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case llvm::Triple::arm:
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case llvm::Triple::thumb:
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AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.2.1",
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"arm-apple-darwin10", "v7", "", triple);
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AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.2.1",
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"arm-apple-darwin10", "v6", "", triple);
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break;
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case llvm::Triple::aarch64:
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AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.2.1",
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"arm64-apple-darwin10", "", "", triple);
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break;
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}
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return;
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}
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switch (os) {
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case llvm::Triple::Linux:
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llvm_unreachable("Include management is handled in the driver.");
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break;
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case llvm::Triple::Win32:
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switch (triple.getEnvironment()) {
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default: llvm_unreachable("Include management is handled in the driver.");
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case llvm::Triple::Cygnus:
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// Cygwin-1.7
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AddMinGWCPlusPlusIncludePaths("/usr/lib/gcc", "i686-pc-cygwin", "4.7.3");
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AddMinGWCPlusPlusIncludePaths("/usr/lib/gcc", "i686-pc-cygwin", "4.5.3");
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AddMinGWCPlusPlusIncludePaths("/usr/lib/gcc", "i686-pc-cygwin", "4.3.4");
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// g++-4 / Cygwin-1.5
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AddMinGWCPlusPlusIncludePaths("/usr/lib/gcc", "i686-pc-cygwin", "4.3.2");
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break;
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}
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break;
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case llvm::Triple::DragonFly:
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AddPath("/usr/include/c++/5.0", CXXSystem, false);
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break;
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case llvm::Triple::OpenBSD: {
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std::string t = triple.getTriple();
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if (t.substr(0, 6) == "x86_64")
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t.replace(0, 6, "amd64");
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AddGnuCPlusPlusIncludePaths("/usr/include/g++",
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t, "", "", triple);
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break;
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}
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case llvm::Triple::Minix:
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AddGnuCPlusPlusIncludePaths("/usr/gnu/include/c++/4.4.3",
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"", "", "", triple);
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break;
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default:
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break;
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}
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}
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void InitHeaderSearch::AddDefaultIncludePaths(const LangOptions &Lang,
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const llvm::Triple &triple,
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const HeaderSearchOptions &HSOpts) {
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// NB: This code path is going away. All of the logic is moving into the
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// driver which has the information necessary to do target-specific
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// selections of default include paths. Each target which moves there will be
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// exempted from this logic here until we can delete the entire pile of code.
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switch (triple.getOS()) {
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default:
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break; // Everything else continues to use this routine's logic.
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case llvm::Triple::Linux:
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return;
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case llvm::Triple::Win32:
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if (triple.getEnvironment() != llvm::Triple::Cygnus ||
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triple.isOSBinFormatMachO())
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return;
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break;
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}
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if (Lang.CPlusPlus && HSOpts.UseStandardCXXIncludes &&
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HSOpts.UseStandardSystemIncludes) {
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if (HSOpts.UseLibcxx) {
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if (triple.isOSDarwin()) {
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// On Darwin, libc++ may be installed alongside the compiler in
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// include/c++/v1.
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if (!HSOpts.ResourceDir.empty()) {
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// Remove version from foo/lib/clang/version
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StringRef NoVer = llvm::sys::path::parent_path(HSOpts.ResourceDir);
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// Remove clang from foo/lib/clang
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StringRef Lib = llvm::sys::path::parent_path(NoVer);
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// Remove lib from foo/lib
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SmallString<128> P = llvm::sys::path::parent_path(Lib);
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// Get foo/include/c++/v1
|
|
llvm::sys::path::append(P, "include", "c++", "v1");
|
|
AddUnmappedPath(P, CXXSystem, false);
|
|
}
|
|
}
|
|
AddPath("/usr/include/c++/v1", CXXSystem, false);
|
|
} else {
|
|
AddDefaultCPlusPlusIncludePaths(triple, HSOpts);
|
|
}
|
|
}
|
|
|
|
AddDefaultCIncludePaths(triple, HSOpts);
|
|
|
|
// Add the default framework include paths on Darwin.
|
|
if (HSOpts.UseStandardSystemIncludes) {
|
|
if (triple.isOSDarwin()) {
|
|
AddPath("/System/Library/Frameworks", System, true);
|
|
AddPath("/Library/Frameworks", System, true);
|
|
}
|
|
}
|
|
}
|
|
|
|
/// RemoveDuplicates - If there are duplicate directory entries in the specified
|
|
/// search list, remove the later (dead) ones. Returns the number of non-system
|
|
/// headers removed, which is used to update NumAngled.
|
|
static unsigned RemoveDuplicates(std::vector<DirectoryLookup> &SearchList,
|
|
unsigned First, bool Verbose) {
|
|
llvm::SmallPtrSet<const DirectoryEntry *, 8> SeenDirs;
|
|
llvm::SmallPtrSet<const DirectoryEntry *, 8> SeenFrameworkDirs;
|
|
llvm::SmallPtrSet<const HeaderMap *, 8> SeenHeaderMaps;
|
|
unsigned NonSystemRemoved = 0;
|
|
for (unsigned i = First; i != SearchList.size(); ++i) {
|
|
unsigned DirToRemove = i;
|
|
|
|
const DirectoryLookup &CurEntry = SearchList[i];
|
|
|
|
if (CurEntry.isNormalDir()) {
|
|
// If this isn't the first time we've seen this dir, remove it.
|
|
if (SeenDirs.insert(CurEntry.getDir()).second)
|
|
continue;
|
|
} else if (CurEntry.isFramework()) {
|
|
// If this isn't the first time we've seen this framework dir, remove it.
|
|
if (SeenFrameworkDirs.insert(CurEntry.getFrameworkDir()).second)
|
|
continue;
|
|
} else {
|
|
assert(CurEntry.isHeaderMap() && "Not a headermap or normal dir?");
|
|
// If this isn't the first time we've seen this headermap, remove it.
|
|
if (SeenHeaderMaps.insert(CurEntry.getHeaderMap()).second)
|
|
continue;
|
|
}
|
|
|
|
// If we have a normal #include dir/framework/headermap that is shadowed
|
|
// later in the chain by a system include location, we actually want to
|
|
// ignore the user's request and drop the user dir... keeping the system
|
|
// dir. This is weird, but required to emulate GCC's search path correctly.
|
|
//
|
|
// Since dupes of system dirs are rare, just rescan to find the original
|
|
// that we're nuking instead of using a DenseMap.
|
|
if (CurEntry.getDirCharacteristic() != SrcMgr::C_User) {
|
|
// Find the dir that this is the same of.
|
|
unsigned FirstDir;
|
|
for (FirstDir = 0; ; ++FirstDir) {
|
|
assert(FirstDir != i && "Didn't find dupe?");
|
|
|
|
const DirectoryLookup &SearchEntry = SearchList[FirstDir];
|
|
|
|
// If these are different lookup types, then they can't be the dupe.
|
|
if (SearchEntry.getLookupType() != CurEntry.getLookupType())
|
|
continue;
|
|
|
|
bool isSame;
|
|
if (CurEntry.isNormalDir())
|
|
isSame = SearchEntry.getDir() == CurEntry.getDir();
|
|
else if (CurEntry.isFramework())
|
|
isSame = SearchEntry.getFrameworkDir() == CurEntry.getFrameworkDir();
|
|
else {
|
|
assert(CurEntry.isHeaderMap() && "Not a headermap or normal dir?");
|
|
isSame = SearchEntry.getHeaderMap() == CurEntry.getHeaderMap();
|
|
}
|
|
|
|
if (isSame)
|
|
break;
|
|
}
|
|
|
|
// If the first dir in the search path is a non-system dir, zap it
|
|
// instead of the system one.
|
|
if (SearchList[FirstDir].getDirCharacteristic() == SrcMgr::C_User)
|
|
DirToRemove = FirstDir;
|
|
}
|
|
|
|
if (Verbose) {
|
|
llvm::errs() << "ignoring duplicate directory \""
|
|
<< CurEntry.getName() << "\"\n";
|
|
if (DirToRemove != i)
|
|
llvm::errs() << " as it is a non-system directory that duplicates "
|
|
<< "a system directory\n";
|
|
}
|
|
if (DirToRemove != i)
|
|
++NonSystemRemoved;
|
|
|
|
// This is reached if the current entry is a duplicate. Remove the
|
|
// DirToRemove (usually the current dir).
|
|
SearchList.erase(SearchList.begin()+DirToRemove);
|
|
--i;
|
|
}
|
|
return NonSystemRemoved;
|
|
}
|
|
|
|
|
|
void InitHeaderSearch::Realize(const LangOptions &Lang) {
|
|
// Concatenate ANGLE+SYSTEM+AFTER chains together into SearchList.
|
|
std::vector<DirectoryLookup> SearchList;
|
|
SearchList.reserve(IncludePath.size());
|
|
|
|
// Quoted arguments go first.
|
|
for (auto &Include : IncludePath)
|
|
if (Include.first == Quoted)
|
|
SearchList.push_back(Include.second);
|
|
|
|
// Deduplicate and remember index.
|
|
RemoveDuplicates(SearchList, 0, Verbose);
|
|
unsigned NumQuoted = SearchList.size();
|
|
|
|
for (auto &Include : IncludePath)
|
|
if (Include.first == Angled || Include.first == IndexHeaderMap)
|
|
SearchList.push_back(Include.second);
|
|
|
|
RemoveDuplicates(SearchList, NumQuoted, Verbose);
|
|
unsigned NumAngled = SearchList.size();
|
|
|
|
for (auto &Include : IncludePath)
|
|
if (Include.first == System || Include.first == ExternCSystem ||
|
|
(!Lang.ObjC1 && !Lang.CPlusPlus && Include.first == CSystem) ||
|
|
(/*FIXME !Lang.ObjC1 && */ Lang.CPlusPlus &&
|
|
Include.first == CXXSystem) ||
|
|
(Lang.ObjC1 && !Lang.CPlusPlus && Include.first == ObjCSystem) ||
|
|
(Lang.ObjC1 && Lang.CPlusPlus && Include.first == ObjCXXSystem))
|
|
SearchList.push_back(Include.second);
|
|
|
|
for (auto &Include : IncludePath)
|
|
if (Include.first == After)
|
|
SearchList.push_back(Include.second);
|
|
|
|
// Remove duplicates across both the Angled and System directories. GCC does
|
|
// this and failing to remove duplicates across these two groups breaks
|
|
// #include_next.
|
|
unsigned NonSystemRemoved = RemoveDuplicates(SearchList, NumQuoted, Verbose);
|
|
NumAngled -= NonSystemRemoved;
|
|
|
|
bool DontSearchCurDir = false; // TODO: set to true if -I- is set?
|
|
Headers.SetSearchPaths(SearchList, NumQuoted, NumAngled, DontSearchCurDir);
|
|
|
|
Headers.SetSystemHeaderPrefixes(SystemHeaderPrefixes);
|
|
|
|
// If verbose, print the list of directories that will be searched.
|
|
if (Verbose) {
|
|
llvm::errs() << "#include \"...\" search starts here:\n";
|
|
for (unsigned i = 0, e = SearchList.size(); i != e; ++i) {
|
|
if (i == NumQuoted)
|
|
llvm::errs() << "#include <...> search starts here:\n";
|
|
const char *Name = SearchList[i].getName();
|
|
const char *Suffix;
|
|
if (SearchList[i].isNormalDir())
|
|
Suffix = "";
|
|
else if (SearchList[i].isFramework())
|
|
Suffix = " (framework directory)";
|
|
else {
|
|
assert(SearchList[i].isHeaderMap() && "Unknown DirectoryLookup");
|
|
Suffix = " (headermap)";
|
|
}
|
|
llvm::errs() << " " << Name << Suffix << "\n";
|
|
}
|
|
llvm::errs() << "End of search list.\n";
|
|
}
|
|
}
|
|
|
|
void clang::ApplyHeaderSearchOptions(HeaderSearch &HS,
|
|
const HeaderSearchOptions &HSOpts,
|
|
const LangOptions &Lang,
|
|
const llvm::Triple &Triple) {
|
|
InitHeaderSearch Init(HS, HSOpts.Verbose, HSOpts.Sysroot);
|
|
|
|
// Add the user defined entries.
|
|
for (unsigned i = 0, e = HSOpts.UserEntries.size(); i != e; ++i) {
|
|
const HeaderSearchOptions::Entry &E = HSOpts.UserEntries[i];
|
|
if (E.IgnoreSysRoot) {
|
|
Init.AddUnmappedPath(E.Path, E.Group, E.IsFramework);
|
|
} else {
|
|
Init.AddPath(E.Path, E.Group, E.IsFramework);
|
|
}
|
|
}
|
|
|
|
Init.AddDefaultIncludePaths(Lang, Triple, HSOpts);
|
|
|
|
for (unsigned i = 0, e = HSOpts.SystemHeaderPrefixes.size(); i != e; ++i)
|
|
Init.AddSystemHeaderPrefix(HSOpts.SystemHeaderPrefixes[i].Prefix,
|
|
HSOpts.SystemHeaderPrefixes[i].IsSystemHeader);
|
|
|
|
if (HSOpts.UseBuiltinIncludes) {
|
|
// Set up the builtin include directory in the module map.
|
|
SmallString<128> P = StringRef(HSOpts.ResourceDir);
|
|
llvm::sys::path::append(P, "include");
|
|
if (const DirectoryEntry *Dir = HS.getFileMgr().getDirectory(P))
|
|
HS.getModuleMap().setBuiltinIncludeDir(Dir);
|
|
}
|
|
|
|
Init.Realize(Lang);
|
|
}
|