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a796f53821
teak-llvm/clang/lib/Frontend/InitHeaderSearch.cpp
Chandler Carruth a796f53821 Move the Linux header searching from the Frontend to the Driver. This is 
the first (and diff-noisiest) step to making Linux header searching
tremendously more principled and less brittle. Note that this step
should have essentially no functional impact. We still search the exact
same set of paths in the exact same order. The only change here is where
the code implementing such a search lives.

This has one obvious negative impact -- we now pass a ludicrous number
of flags to the CC1 layer. That should go away as I re-base this logic
on the logic to detect a GCC installation. I want to do this in two
phases so the bots can tell me if this step alone breaks something, and
so that the diffs of the refactoring make more sense.

llvm-svn: 143822
2011-11-05 20:17:13 +00:00

669 lines
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//===--- InitHeaderSearch.cpp - Initialize header search paths ------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the InitHeaderSearch class.
//
//===----------------------------------------------------------------------===//
#ifdef HAVE_CLANG_CONFIG_H
# include "clang/Config/config.h"
#endif
#include "clang/Frontend/Utils.h"
#include "clang/Basic/FileManager.h"
#include "clang/Basic/LangOptions.h"
#include "clang/Frontend/HeaderSearchOptions.h"
#include "clang/Lex/HeaderSearch.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/Triple.h"
#include "llvm/ADT/Twine.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Path.h"
#include "llvm/Config/config.h"
using namespace clang;
using namespace clang::frontend;
namespace {
/// InitHeaderSearch - This class makes it easier to set the search paths of
/// a HeaderSearch object. InitHeaderSearch stores several search path lists
/// internally, which can be sent to a HeaderSearch object in one swoop.
class InitHeaderSearch {
std::vector<std::pair<IncludeDirGroup, DirectoryLookup> > IncludePath;
typedef std::vector<std::pair<IncludeDirGroup,
DirectoryLookup> >::const_iterator path_iterator;
HeaderSearch &Headers;
bool Verbose;
std::string IncludeSysroot;
bool IsNotEmptyOrRoot;
public:
InitHeaderSearch(HeaderSearch &HS, bool verbose, StringRef sysroot)
: Headers(HS), Verbose(verbose), IncludeSysroot(sysroot),
IsNotEmptyOrRoot(!(sysroot.empty() || sysroot == "/")) {
}
/// AddPath - Add the specified path to the specified group list.
void AddPath(const Twine &Path, IncludeDirGroup Group,
bool isCXXAware, bool isUserSupplied,
bool isFramework, bool IgnoreSysRoot = false);
/// AddGnuCPlusPlusIncludePaths - Add the necessary paths to support a gnu
/// libstdc++.
void AddGnuCPlusPlusIncludePaths(StringRef Base,
StringRef ArchDir,
StringRef Dir32,
StringRef Dir64,
const llvm::Triple &triple);
/// AddMinGWCPlusPlusIncludePaths - Add the necessary paths to support a MinGW
/// libstdc++.
void AddMinGWCPlusPlusIncludePaths(StringRef Base,
StringRef Arch,
StringRef Version);
/// AddMinGW64CXXPaths - Add the necessary paths to support
/// libstdc++ of x86_64-w64-mingw32 aka mingw-w64.
void AddMinGW64CXXPaths(StringRef Base,
StringRef Version);
// AddDefaultCIncludePaths - Add paths that should always be searched.
void AddDefaultCIncludePaths(const llvm::Triple &triple,
const HeaderSearchOptions &HSOpts);
// AddDefaultCPlusPlusIncludePaths - Add paths that should be searched when
// compiling c++.
void AddDefaultCPlusPlusIncludePaths(const llvm::Triple &triple,
const HeaderSearchOptions &HSOpts);
/// AddDefaultSystemIncludePaths - Adds the default system include paths so
/// that e.g. stdio.h is found.
void AddDefaultIncludePaths(const LangOptions &Lang,
const llvm::Triple &triple,
const HeaderSearchOptions &HSOpts);
/// Realize - Merges all search path lists into one list and send it to
/// HeaderSearch.
void Realize(const LangOptions &Lang);
};
} // end anonymous namespace.
void InitHeaderSearch::AddPath(const Twine &Path,
IncludeDirGroup Group, bool isCXXAware,
bool isUserSupplied, bool isFramework,
bool IgnoreSysRoot) {
assert(!Path.isTriviallyEmpty() && "can't handle empty path here");
FileManager &FM = Headers.getFileMgr();
// Compute the actual path, taking into consideration -isysroot.
llvm::SmallString<256> MappedPathStorage;
StringRef MappedPathStr = Path.toStringRef(MappedPathStorage);
// Handle isysroot.
if ((Group == System || Group == CXXSystem) && !IgnoreSysRoot &&
#if defined(_WIN32)
!MappedPathStr.empty() &&
llvm::sys::path::is_separator(MappedPathStr[0]) &&
#else
llvm::sys::path::is_absolute(MappedPathStr) &&
#endif
IsNotEmptyOrRoot) {
MappedPathStorage.clear();
MappedPathStr =
(IncludeSysroot + Path).toStringRef(MappedPathStorage);
}
// Compute the DirectoryLookup type.
SrcMgr::CharacteristicKind Type;
if (Group == Quoted || Group == Angled || Group == IndexHeaderMap)
Type = SrcMgr::C_User;
else if (isCXXAware)
Type = SrcMgr::C_System;
else
Type = SrcMgr::C_ExternCSystem;
// If the directory exists, add it.
if (const DirectoryEntry *DE = FM.getDirectory(MappedPathStr)) {
IncludePath.push_back(std::make_pair(Group, DirectoryLookup(DE, Type,
isUserSupplied, isFramework)));
return;
}
// Check to see if this is an apple-style headermap (which are not allowed to
// be frameworks).
if (!isFramework) {
if (const FileEntry *FE = FM.getFile(MappedPathStr)) {
if (const HeaderMap *HM = Headers.CreateHeaderMap(FE)) {
// It is a headermap, add it to the search path.
IncludePath.push_back(std::make_pair(Group, DirectoryLookup(HM, Type,
isUserSupplied, Group == IndexHeaderMap)));
return;
}
}
}
if (Verbose)
llvm::errs() << "ignoring nonexistent directory \""
<< MappedPathStr << "\"\n";
}
void InitHeaderSearch::AddGnuCPlusPlusIncludePaths(StringRef Base,
StringRef ArchDir,
StringRef Dir32,
StringRef Dir64,
const llvm::Triple &triple) {
// Add the base dir
AddPath(Base, CXXSystem, true, false, false);
// Add the multilib dirs
llvm::Triple::ArchType arch = triple.getArch();
bool is64bit = arch == llvm::Triple::ppc64 || arch == llvm::Triple::x86_64;
if (is64bit)
AddPath(Base + "/" + ArchDir + "/" + Dir64, CXXSystem, true, false, false);
else
AddPath(Base + "/" + ArchDir + "/" + Dir32, CXXSystem, true, false, false);
// Add the backward dir
AddPath(Base + "/backward", CXXSystem, true, false, false);
}
void InitHeaderSearch::AddMinGWCPlusPlusIncludePaths(StringRef Base,
StringRef Arch,
StringRef Version) {
AddPath(Base + "/" + Arch + "/" + Version + "/include/c++",
CXXSystem, true, false, false);
AddPath(Base + "/" + Arch + "/" + Version + "/include/c++/" + Arch,
CXXSystem, true, false, false);
AddPath(Base + "/" + Arch + "/" + Version + "/include/c++/backward",
CXXSystem, true, false, false);
}
void InitHeaderSearch::AddMinGW64CXXPaths(StringRef Base,
StringRef Version) {
// Assumes Base is HeaderSearchOpts' ResourceDir
AddPath(Base + "/../../../include/c++/" + Version,
CXXSystem, true, false, false);
AddPath(Base + "/../../../include/c++/" + Version + "/x86_64-w64-mingw32",
CXXSystem, true, false, false);
AddPath(Base + "/../../../include/c++/" + Version + "/i686-w64-mingw32",
CXXSystem, true, false, false);
AddPath(Base + "/../../../include/c++/" + Version + "/backward",
CXXSystem, true, false, false);
}
void InitHeaderSearch::AddDefaultCIncludePaths(const llvm::Triple &triple,
const HeaderSearchOptions &HSOpts) {
llvm::Triple::OSType os = triple.getOS();
if (HSOpts.UseStandardSystemIncludes) {
switch (os) {
case llvm::Triple::FreeBSD:
case llvm::Triple::NetBSD:
break;
default:
// FIXME: temporary hack: hard-coded paths.
AddPath("/usr/local/include", System, true, false, false);
break;
}
}
// Builtin includes use #include_next directives and should be positioned
// just prior C include dirs.
if (HSOpts.UseBuiltinIncludes) {
// Ignore the sys root, we *always* look for clang headers relative to
// supplied path.
llvm::sys::Path P(HSOpts.ResourceDir);
P.appendComponent("include");
AddPath(P.str(), System, false, false, false, /*IgnoreSysRoot=*/ true);
}
// All remaining additions are for system include directories, early exit if
// we aren't using them.
if (!HSOpts.UseStandardSystemIncludes)
return;
// Add dirs specified via 'configure --with-c-include-dirs'.
StringRef CIncludeDirs(C_INCLUDE_DIRS);
if (CIncludeDirs != "") {
SmallVector<StringRef, 5> dirs;
CIncludeDirs.split(dirs, ":");
for (SmallVectorImpl<StringRef>::iterator i = dirs.begin();
i != dirs.end();
++i)
AddPath(*i, System, false, false, false);
return;
}
switch (os) {
case llvm::Triple::Linux:
case llvm::Triple::Win32:
llvm_unreachable("Include management is handled in the driver.");
case llvm::Triple::Haiku:
AddPath("/boot/common/include", System, true, false, false);
AddPath("/boot/develop/headers/os", System, true, false, false);
AddPath("/boot/develop/headers/os/app", System, true, false, false);
AddPath("/boot/develop/headers/os/arch", System, true, false, false);
AddPath("/boot/develop/headers/os/device", System, true, false, false);
AddPath("/boot/develop/headers/os/drivers", System, true, false, false);
AddPath("/boot/develop/headers/os/game", System, true, false, false);
AddPath("/boot/develop/headers/os/interface", System, true, false, false);
AddPath("/boot/develop/headers/os/kernel", System, true, false, false);
AddPath("/boot/develop/headers/os/locale", System, true, false, false);
AddPath("/boot/develop/headers/os/mail", System, true, false, false);
AddPath("/boot/develop/headers/os/media", System, true, false, false);
AddPath("/boot/develop/headers/os/midi", System, true, false, false);
AddPath("/boot/develop/headers/os/midi2", System, true, false, false);
AddPath("/boot/develop/headers/os/net", System, true, false, false);
AddPath("/boot/develop/headers/os/storage", System, true, false, false);
AddPath("/boot/develop/headers/os/support", System, true, false, false);
AddPath("/boot/develop/headers/os/translation",
System, true, false, false);
AddPath("/boot/develop/headers/os/add-ons/graphics",
System, true, false, false);
AddPath("/boot/develop/headers/os/add-ons/input_server",
System, true, false, false);
AddPath("/boot/develop/headers/os/add-ons/screen_saver",
System, true, false, false);
AddPath("/boot/develop/headers/os/add-ons/tracker",
System, true, false, false);
AddPath("/boot/develop/headers/os/be_apps/Deskbar",
System, true, false, false);
AddPath("/boot/develop/headers/os/be_apps/NetPositive",
System, true, false, false);
AddPath("/boot/develop/headers/os/be_apps/Tracker",
System, true, false, false);
AddPath("/boot/develop/headers/cpp", System, true, false, false);
AddPath("/boot/develop/headers/cpp/i586-pc-haiku",
System, true, false, false);
AddPath("/boot/develop/headers/3rdparty", System, true, false, false);
AddPath("/boot/develop/headers/bsd", System, true, false, false);
AddPath("/boot/develop/headers/glibc", System, true, false, false);
AddPath("/boot/develop/headers/posix", System, true, false, false);
AddPath("/boot/develop/headers", System, true, false, false);
break;
case llvm::Triple::RTEMS:
break;
case llvm::Triple::Cygwin:
AddPath("/usr/include/w32api", System, true, false, false);
break;
case llvm::Triple::MinGW32: {
// mingw-w64 crt include paths
llvm::sys::Path P(HSOpts.ResourceDir);
P.appendComponent("../../../i686-w64-mingw32/include"); // <sysroot>/i686-w64-mingw32/include
AddPath(P.str(), System, true, false, false);
P = llvm::sys::Path(HSOpts.ResourceDir);
P.appendComponent("../../../x86_64-w64-mingw32/include"); // <sysroot>/x86_64-w64-mingw32/include
AddPath(P.str(), System, true, false, false);
// mingw.org crt include paths
P = llvm::sys::Path(HSOpts.ResourceDir);
P.appendComponent("../../../include"); // <sysroot>/include
AddPath(P.str(), System, true, false, false);
AddPath("/mingw/include", System, true, false, false);
AddPath("c:/mingw/include", System, true, false, false);
}
break;
default:
break;
}
if ( os != llvm::Triple::RTEMS )
AddPath("/usr/include", System, false, false, false);
}
void InitHeaderSearch::
AddDefaultCPlusPlusIncludePaths(const llvm::Triple &triple, const HeaderSearchOptions &HSOpts) {
llvm::Triple::OSType os = triple.getOS();
StringRef CxxIncludeRoot(CXX_INCLUDE_ROOT);
if (CxxIncludeRoot != "") {
StringRef CxxIncludeArch(CXX_INCLUDE_ARCH);
if (CxxIncludeArch == "")
AddGnuCPlusPlusIncludePaths(CxxIncludeRoot, triple.str().c_str(),
CXX_INCLUDE_32BIT_DIR, CXX_INCLUDE_64BIT_DIR,
triple);
else
AddGnuCPlusPlusIncludePaths(CxxIncludeRoot, CXX_INCLUDE_ARCH,
CXX_INCLUDE_32BIT_DIR, CXX_INCLUDE_64BIT_DIR,
triple);
return;
}
// FIXME: temporary hack: hard-coded paths.
if (triple.isOSDarwin()) {
switch (triple.getArch()) {
default: break;
case llvm::Triple::ppc:
case llvm::Triple::ppc64:
AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.2.1",
"powerpc-apple-darwin10", "", "ppc64",
triple);
AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.0.0",
"powerpc-apple-darwin10", "", "ppc64",
triple);
break;
case llvm::Triple::x86:
case llvm::Triple::x86_64:
AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.2.1",
"i686-apple-darwin10", "", "x86_64", triple);
AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.0.0",
"i686-apple-darwin8", "", "", triple);
break;
case llvm::Triple::arm:
case llvm::Triple::thumb:
AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.2.1",
"arm-apple-darwin10", "v7", "", triple);
AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.2.1",
"arm-apple-darwin10", "v6", "", triple);
break;
}
return;
}
switch (os) {
case llvm::Triple::Linux:
case llvm::Triple::Win32:
llvm_unreachable("Include management is handled in the driver.");
case llvm::Triple::Cygwin:
// Cygwin-1.7
AddMinGWCPlusPlusIncludePaths("/usr/lib/gcc", "i686-pc-cygwin", "4.3.4");
// g++-4 / Cygwin-1.5
AddMinGWCPlusPlusIncludePaths("/usr/lib/gcc", "i686-pc-cygwin", "4.3.2");
// FIXME: Do we support g++-3.4.4?
AddMinGWCPlusPlusIncludePaths("/usr/lib/gcc", "i686-pc-cygwin", "3.4.4");
break;
case llvm::Triple::MinGW32:
// mingw-w64 C++ include paths (i686-w64-mingw32 and x86_64-w64-mingw32)
AddMinGW64CXXPaths(HSOpts.ResourceDir, "4.5.0");
AddMinGW64CXXPaths(HSOpts.ResourceDir, "4.5.1");
AddMinGW64CXXPaths(HSOpts.ResourceDir, "4.5.2");
AddMinGW64CXXPaths(HSOpts.ResourceDir, "4.5.3");
AddMinGW64CXXPaths(HSOpts.ResourceDir, "4.6.0");
AddMinGW64CXXPaths(HSOpts.ResourceDir, "4.6.1");
AddMinGW64CXXPaths(HSOpts.ResourceDir, "4.6.2");
AddMinGW64CXXPaths(HSOpts.ResourceDir, "4.7.0");
// mingw.org C++ include paths
AddMinGWCPlusPlusIncludePaths("/mingw/lib/gcc", "mingw32", "4.5.2"); //MSYS
AddMinGWCPlusPlusIncludePaths("c:/MinGW/lib/gcc", "mingw32", "4.5.0");
AddMinGWCPlusPlusIncludePaths("c:/MinGW/lib/gcc", "mingw32", "4.4.0");
AddMinGWCPlusPlusIncludePaths("c:/MinGW/lib/gcc", "mingw32", "4.3.0");
break;
case llvm::Triple::DragonFly:
AddPath("/usr/include/c++/4.1", CXXSystem, true, false, false);
break;
case llvm::Triple::FreeBSD:
// FreeBSD 8.0
// FreeBSD 7.3
AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.2", "", "", "", triple);
break;
case llvm::Triple::NetBSD:
AddGnuCPlusPlusIncludePaths("/usr/include/g++", "", "", "", triple);
break;
case llvm::Triple::OpenBSD: {
std::string t = triple.getTriple();
if (t.substr(0, 6) == "x86_64")
t.replace(0, 6, "amd64");
AddGnuCPlusPlusIncludePaths("/usr/include/g++",
t, "", "", triple);
break;
}
case llvm::Triple::Minix:
AddGnuCPlusPlusIncludePaths("/usr/gnu/include/c++/4.4.3",
"", "", "", triple);
break;
case llvm::Triple::Solaris:
// Solaris - Fall though..
case llvm::Triple::AuroraUX:
// AuroraUX
AddGnuCPlusPlusIncludePaths("/opt/gcc4/include/c++/4.2.4",
"i386-pc-solaris2.11", "", "", triple);
break;
default:
break;
}
}
void InitHeaderSearch::AddDefaultIncludePaths(const LangOptions &Lang,
const llvm::Triple &triple,
const HeaderSearchOptions &HSOpts) {
// NB: This code path is going away. All of the logic is moving into the
// driver which has the information necessary to do target-specific
// selections of default include paths. Each target which moves there will be
// exempted from this logic here until we can delete the entire pile of code.
switch (triple.getOS()) {
default:
break; // Everything else continues to use this routine's logic.
case llvm::Triple::Linux:
case llvm::Triple::Win32:
return;
}
if (Lang.CPlusPlus && HSOpts.UseStandardCXXIncludes &&
HSOpts.UseStandardSystemIncludes) {
if (HSOpts.UseLibcxx) {
if (triple.isOSDarwin()) {
// On Darwin, libc++ may be installed alongside the compiler in
// lib/c++/v1.
llvm::sys::Path P(HSOpts.ResourceDir);
if (!P.isEmpty()) {
P.eraseComponent(); // Remove version from foo/lib/clang/version
P.eraseComponent(); // Remove clang from foo/lib/clang
// Get foo/lib/c++/v1
P.appendComponent("c++");
P.appendComponent("v1");
AddPath(P.str(), CXXSystem, true, false, false, true);
}
}
AddPath("/usr/include/c++/v1", CXXSystem, true, false, 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, false, true);
AddPath("/Library/Frameworks", System, true, false, 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()))
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()))
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()))
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 (path_iterator it = IncludePath.begin(), ie = IncludePath.end();
it != ie; ++it) {
if (it->first == Quoted)
SearchList.push_back(it->second);
}
// Deduplicate and remember index.
RemoveDuplicates(SearchList, 0, Verbose);
unsigned NumQuoted = SearchList.size();
for (path_iterator it = IncludePath.begin(), ie = IncludePath.end();
it != ie; ++it) {
if (it->first == Angled || it->first == IndexHeaderMap)
SearchList.push_back(it->second);
}
RemoveDuplicates(SearchList, NumQuoted, Verbose);
unsigned NumAngled = SearchList.size();
for (path_iterator it = IncludePath.begin(), ie = IncludePath.end();
it != ie; ++it) {
if (it->first == System ||
(!Lang.ObjC1 && !Lang.CPlusPlus && it->first == CSystem) ||
(/*FIXME !Lang.ObjC1 && */Lang.CPlusPlus && it->first == CXXSystem) ||
(Lang.ObjC1 && !Lang.CPlusPlus && it->first == ObjCSystem) ||
(Lang.ObjC1 && Lang.CPlusPlus && it->first == ObjCXXSystem))
SearchList.push_back(it->second);
}
for (path_iterator it = IncludePath.begin(), ie = IncludePath.end();
it != ie; ++it) {
if (it->first == After)
SearchList.push_back(it->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);
// 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];
Init.AddPath(E.Path, E.Group, !E.ImplicitExternC, E.IsUserSupplied,
E.IsFramework, E.IgnoreSysRoot);
}
Init.AddDefaultIncludePaths(Lang, Triple, HSOpts);
Init.Realize(Lang);
}
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