1 //===--- InitHeaderSearch.cpp - Initialize header search paths ------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements the InitHeaderSearch class.
12 //===----------------------------------------------------------------------===//
14 #include "clang/Frontend/Utils.h"
15 #include "clang/Basic/FileManager.h"
16 #include "clang/Basic/LangOptions.h"
17 #include "clang/Basic/Version.h"
18 #include "clang/Config/config.h" // C_INCLUDE_DIRS
19 #include "clang/Lex/HeaderSearch.h"
20 #include "clang/Lex/HeaderSearchOptions.h"
21 #include "llvm/ADT/SmallPtrSet.h"
22 #include "llvm/ADT/SmallString.h"
23 #include "llvm/ADT/SmallVector.h"
24 #include "llvm/ADT/StringExtras.h"
25 #include "llvm/ADT/Triple.h"
26 #include "llvm/ADT/Twine.h"
27 #include "llvm/Support/ErrorHandling.h"
28 #include "llvm/Support/FileSystem.h"
29 #include "llvm/Support/Path.h"
30 #include "llvm/Support/raw_ostream.h"
32 using namespace clang;
33 using namespace clang::frontend;
37 /// InitHeaderSearch - This class makes it easier to set the search paths of
38 /// a HeaderSearch object. InitHeaderSearch stores several search path lists
39 /// internally, which can be sent to a HeaderSearch object in one swoop.
40 class InitHeaderSearch {
41 std::vector<std::pair<IncludeDirGroup, DirectoryLookup> > IncludePath;
42 typedef std::vector<std::pair<IncludeDirGroup,
43 DirectoryLookup> >::const_iterator path_iterator;
44 std::vector<std::pair<std::string, bool> > SystemHeaderPrefixes;
45 HeaderSearch &Headers;
47 std::string IncludeSysroot;
52 InitHeaderSearch(HeaderSearch &HS, bool verbose, StringRef sysroot)
53 : Headers(HS), Verbose(verbose), IncludeSysroot(sysroot),
54 HasSysroot(!(sysroot.empty() || sysroot == "/")) {
57 /// AddPath - Add the specified path to the specified group list, prefixing
58 /// the sysroot if used.
59 void AddPath(const Twine &Path, IncludeDirGroup Group, bool isFramework);
61 /// AddUnmappedPath - Add the specified path to the specified group list,
62 /// without performing any sysroot remapping.
63 void AddUnmappedPath(const Twine &Path, IncludeDirGroup Group,
66 /// AddSystemHeaderPrefix - Add the specified prefix to the system header
68 void AddSystemHeaderPrefix(StringRef Prefix, bool IsSystemHeader) {
69 SystemHeaderPrefixes.push_back(std::make_pair(Prefix, IsSystemHeader));
72 /// AddGnuCPlusPlusIncludePaths - Add the necessary paths to support a gnu
74 void AddGnuCPlusPlusIncludePaths(StringRef Base,
78 const llvm::Triple &triple);
80 /// AddMinGWCPlusPlusIncludePaths - Add the necessary paths to support a MinGW
82 void AddMinGWCPlusPlusIncludePaths(StringRef Base,
86 /// AddMinGW64CXXPaths - Add the necessary paths to support
87 /// libstdc++ of x86_64-w64-mingw32 aka mingw-w64.
88 void AddMinGW64CXXPaths(StringRef Base,
91 // AddDefaultCIncludePaths - Add paths that should always be searched.
92 void AddDefaultCIncludePaths(const llvm::Triple &triple,
93 const HeaderSearchOptions &HSOpts);
95 // AddDefaultCPlusPlusIncludePaths - Add paths that should be searched when
97 void AddDefaultCPlusPlusIncludePaths(const llvm::Triple &triple,
98 const HeaderSearchOptions &HSOpts);
100 /// AddDefaultSystemIncludePaths - Adds the default system include paths so
101 /// that e.g. stdio.h is found.
102 void AddDefaultIncludePaths(const LangOptions &Lang,
103 const llvm::Triple &triple,
104 const HeaderSearchOptions &HSOpts);
106 /// Realize - Merges all search path lists into one list and send it to
108 void Realize(const LangOptions &Lang);
111 } // end anonymous namespace.
113 static bool CanPrefixSysroot(StringRef Path) {
115 return !Path.empty() && llvm::sys::path::is_separator(Path[0]);
117 return llvm::sys::path::is_absolute(Path);
121 void InitHeaderSearch::AddPath(const Twine &Path, IncludeDirGroup Group,
123 // Add the path with sysroot prepended, if desired and this is a system header
126 SmallString<256> MappedPathStorage;
127 StringRef MappedPathStr = Path.toStringRef(MappedPathStorage);
128 if (CanPrefixSysroot(MappedPathStr)) {
129 AddUnmappedPath(IncludeSysroot + Path, Group, isFramework);
134 AddUnmappedPath(Path, Group, isFramework);
137 void InitHeaderSearch::AddUnmappedPath(const Twine &Path, IncludeDirGroup Group,
139 assert(!Path.isTriviallyEmpty() && "can't handle empty path here");
141 FileManager &FM = Headers.getFileMgr();
142 SmallString<256> MappedPathStorage;
143 StringRef MappedPathStr = Path.toStringRef(MappedPathStorage);
145 // Compute the DirectoryLookup type.
146 SrcMgr::CharacteristicKind Type;
147 if (Group == Quoted || Group == Angled || Group == IndexHeaderMap) {
148 Type = SrcMgr::C_User;
149 } else if (Group == ExternCSystem) {
150 Type = SrcMgr::C_ExternCSystem;
152 Type = SrcMgr::C_System;
155 // If the directory exists, add it.
156 if (const DirectoryEntry *DE = FM.getDirectory(MappedPathStr)) {
157 IncludePath.push_back(
158 std::make_pair(Group, DirectoryLookup(DE, Type, isFramework)));
162 // Check to see if this is an apple-style headermap (which are not allowed to
165 if (const FileEntry *FE = FM.getFile(MappedPathStr)) {
166 if (const HeaderMap *HM = Headers.CreateHeaderMap(FE)) {
167 // It is a headermap, add it to the search path.
168 IncludePath.push_back(
169 std::make_pair(Group,
170 DirectoryLookup(HM, Type, Group == IndexHeaderMap)));
177 llvm::errs() << "ignoring nonexistent directory \""
178 << MappedPathStr << "\"\n";
181 void InitHeaderSearch::AddGnuCPlusPlusIncludePaths(StringRef Base,
185 const llvm::Triple &triple) {
187 AddPath(Base, CXXSystem, false);
189 // Add the multilib dirs
190 llvm::Triple::ArchType arch = triple.getArch();
191 bool is64bit = arch == llvm::Triple::ppc64 || arch == llvm::Triple::x86_64;
193 AddPath(Base + "/" + ArchDir + "/" + Dir64, CXXSystem, false);
195 AddPath(Base + "/" + ArchDir + "/" + Dir32, CXXSystem, false);
197 // Add the backward dir
198 AddPath(Base + "/backward", CXXSystem, false);
201 void InitHeaderSearch::AddMinGWCPlusPlusIncludePaths(StringRef Base,
204 AddPath(Base + "/" + Arch + "/" + Version + "/include/c++",
206 AddPath(Base + "/" + Arch + "/" + Version + "/include/c++/" + Arch,
208 AddPath(Base + "/" + Arch + "/" + Version + "/include/c++/backward",
212 void InitHeaderSearch::AddMinGW64CXXPaths(StringRef Base,
214 // Assumes Base is HeaderSearchOpts' ResourceDir
215 AddPath(Base + "/../../../include/c++/" + Version,
217 AddPath(Base + "/../../../include/c++/" + Version + "/x86_64-w64-mingw32",
219 AddPath(Base + "/../../../include/c++/" + Version + "/i686-w64-mingw32",
221 AddPath(Base + "/../../../include/c++/" + Version + "/backward",
225 void InitHeaderSearch::AddDefaultCIncludePaths(const llvm::Triple &triple,
226 const HeaderSearchOptions &HSOpts) {
227 llvm::Triple::OSType os = triple.getOS();
229 if (HSOpts.UseStandardSystemIncludes) {
231 case llvm::Triple::FreeBSD:
232 case llvm::Triple::NetBSD:
233 case llvm::Triple::OpenBSD:
234 case llvm::Triple::Bitrig:
237 // FIXME: temporary hack: hard-coded paths.
238 AddPath("/usr/local/include", System, false);
243 // Builtin includes use #include_next directives and should be positioned
244 // just prior C include dirs.
245 if (HSOpts.UseBuiltinIncludes) {
246 // Ignore the sys root, we *always* look for clang headers relative to
248 llvm::sys::Path P(HSOpts.ResourceDir);
249 P.appendComponent("include");
250 AddUnmappedPath(P.str(), ExternCSystem, false);
253 // All remaining additions are for system include directories, early exit if
254 // we aren't using them.
255 if (!HSOpts.UseStandardSystemIncludes)
258 // Add dirs specified via 'configure --with-c-include-dirs'.
259 StringRef CIncludeDirs(C_INCLUDE_DIRS);
260 if (CIncludeDirs != "") {
261 SmallVector<StringRef, 5> dirs;
262 CIncludeDirs.split(dirs, ":");
263 for (SmallVectorImpl<StringRef>::iterator i = dirs.begin();
266 AddPath(*i, ExternCSystem, false);
271 case llvm::Triple::Linux:
272 case llvm::Triple::Win32:
273 llvm_unreachable("Include management is handled in the driver.");
275 case llvm::Triple::Haiku:
276 AddPath("/boot/common/include", System, false);
277 AddPath("/boot/develop/headers/os", System, false);
278 AddPath("/boot/develop/headers/os/app", System, false);
279 AddPath("/boot/develop/headers/os/arch", System, false);
280 AddPath("/boot/develop/headers/os/device", System, false);
281 AddPath("/boot/develop/headers/os/drivers", System, false);
282 AddPath("/boot/develop/headers/os/game", System, false);
283 AddPath("/boot/develop/headers/os/interface", System, false);
284 AddPath("/boot/develop/headers/os/kernel", System, false);
285 AddPath("/boot/develop/headers/os/locale", System, false);
286 AddPath("/boot/develop/headers/os/mail", System, false);
287 AddPath("/boot/develop/headers/os/media", System, false);
288 AddPath("/boot/develop/headers/os/midi", System, false);
289 AddPath("/boot/develop/headers/os/midi2", System, false);
290 AddPath("/boot/develop/headers/os/net", System, false);
291 AddPath("/boot/develop/headers/os/storage", System, false);
292 AddPath("/boot/develop/headers/os/support", System, false);
293 AddPath("/boot/develop/headers/os/translation", System, false);
294 AddPath("/boot/develop/headers/os/add-ons/graphics", System, false);
295 AddPath("/boot/develop/headers/os/add-ons/input_server", System, false);
296 AddPath("/boot/develop/headers/os/add-ons/screen_saver", System, false);
297 AddPath("/boot/develop/headers/os/add-ons/tracker", System, false);
298 AddPath("/boot/develop/headers/os/be_apps/Deskbar", System, false);
299 AddPath("/boot/develop/headers/os/be_apps/NetPositive", System, false);
300 AddPath("/boot/develop/headers/os/be_apps/Tracker", System, false);
301 AddPath("/boot/develop/headers/cpp", System, false);
302 AddPath("/boot/develop/headers/cpp/i586-pc-haiku", System, false);
303 AddPath("/boot/develop/headers/3rdparty", System, false);
304 AddPath("/boot/develop/headers/bsd", System, false);
305 AddPath("/boot/develop/headers/glibc", System, false);
306 AddPath("/boot/develop/headers/posix", System, false);
307 AddPath("/boot/develop/headers", System, false);
309 case llvm::Triple::RTEMS:
311 case llvm::Triple::Cygwin:
312 AddPath("/usr/include/w32api", System, false);
314 case llvm::Triple::MinGW32: {
315 // mingw-w64 crt include paths
316 llvm::sys::Path P(HSOpts.ResourceDir);
317 P.appendComponent("../../../i686-w64-mingw32/include"); // <sysroot>/i686-w64-mingw32/include
318 AddPath(P.str(), System, false);
319 P = llvm::sys::Path(HSOpts.ResourceDir);
320 P.appendComponent("../../../x86_64-w64-mingw32/include"); // <sysroot>/x86_64-w64-mingw32/include
321 AddPath(P.str(), System, false);
322 // mingw.org crt include paths
323 P = llvm::sys::Path(HSOpts.ResourceDir);
324 P.appendComponent("../../../include"); // <sysroot>/include
325 AddPath(P.str(), System, false);
326 AddPath("/mingw/include", System, false);
328 AddPath("c:/mingw/include", System, false);
332 case llvm::Triple::FreeBSD:
333 AddPath("/usr/include/clang/" CLANG_VERSION_STRING, System, false);
340 if ( os != llvm::Triple::RTEMS )
341 AddPath("/usr/include", ExternCSystem, false);
344 void InitHeaderSearch::
345 AddDefaultCPlusPlusIncludePaths(const llvm::Triple &triple, const HeaderSearchOptions &HSOpts) {
346 llvm::Triple::OSType os = triple.getOS();
347 // FIXME: temporary hack: hard-coded paths.
349 if (triple.isOSDarwin()) {
350 switch (triple.getArch()) {
353 case llvm::Triple::ppc:
354 case llvm::Triple::ppc64:
355 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.2.1",
356 "powerpc-apple-darwin10", "", "ppc64",
358 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.0.0",
359 "powerpc-apple-darwin10", "", "ppc64",
363 case llvm::Triple::x86:
364 case llvm::Triple::x86_64:
365 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.2.1",
366 "i686-apple-darwin10", "", "x86_64", triple);
367 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.0.0",
368 "i686-apple-darwin8", "", "", triple);
371 case llvm::Triple::arm:
372 case llvm::Triple::thumb:
373 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.2.1",
374 "arm-apple-darwin10", "v7", "", triple);
375 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.2.1",
376 "arm-apple-darwin10", "v6", "", triple);
383 case llvm::Triple::Linux:
384 case llvm::Triple::Win32:
385 llvm_unreachable("Include management is handled in the driver.");
387 case llvm::Triple::Cygwin:
389 AddMinGWCPlusPlusIncludePaths("/usr/lib/gcc", "i686-pc-cygwin", "4.5.3");
390 AddMinGWCPlusPlusIncludePaths("/usr/lib/gcc", "i686-pc-cygwin", "4.3.4");
391 // g++-4 / Cygwin-1.5
392 AddMinGWCPlusPlusIncludePaths("/usr/lib/gcc", "i686-pc-cygwin", "4.3.2");
394 case llvm::Triple::MinGW32:
395 // mingw-w64 C++ include paths (i686-w64-mingw32 and x86_64-w64-mingw32)
396 AddMinGW64CXXPaths(HSOpts.ResourceDir, "4.5.0");
397 AddMinGW64CXXPaths(HSOpts.ResourceDir, "4.5.1");
398 AddMinGW64CXXPaths(HSOpts.ResourceDir, "4.5.2");
399 AddMinGW64CXXPaths(HSOpts.ResourceDir, "4.5.3");
400 AddMinGW64CXXPaths(HSOpts.ResourceDir, "4.5.4");
401 AddMinGW64CXXPaths(HSOpts.ResourceDir, "4.6.0");
402 AddMinGW64CXXPaths(HSOpts.ResourceDir, "4.6.1");
403 AddMinGW64CXXPaths(HSOpts.ResourceDir, "4.6.2");
404 AddMinGW64CXXPaths(HSOpts.ResourceDir, "4.6.3");
405 AddMinGW64CXXPaths(HSOpts.ResourceDir, "4.7.0");
406 // mingw.org C++ include paths
407 AddMinGWCPlusPlusIncludePaths("/mingw/lib/gcc", "mingw32", "4.5.2"); //MSYS
409 AddMinGWCPlusPlusIncludePaths("c:/MinGW/lib/gcc", "mingw32", "4.6.2");
410 AddMinGWCPlusPlusIncludePaths("c:/MinGW/lib/gcc", "mingw32", "4.6.1");
411 AddMinGWCPlusPlusIncludePaths("c:/MinGW/lib/gcc", "mingw32", "4.5.2");
412 AddMinGWCPlusPlusIncludePaths("c:/MinGW/lib/gcc", "mingw32", "4.5.0");
413 AddMinGWCPlusPlusIncludePaths("c:/MinGW/lib/gcc", "mingw32", "4.4.0");
414 AddMinGWCPlusPlusIncludePaths("c:/MinGW/lib/gcc", "mingw32", "4.3.0");
417 case llvm::Triple::DragonFly:
418 if (llvm::sys::fs::exists("/usr/lib/gcc47"))
419 AddPath("/usr/include/c++/4.7", CXXSystem, false);
421 AddPath("/usr/include/c++/4.4", CXXSystem, false);
423 case llvm::Triple::FreeBSD:
426 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.2",
428 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.2/backward",
431 case llvm::Triple::OpenBSD: {
432 std::string t = triple.getTriple();
433 if (t.substr(0, 6) == "x86_64")
434 t.replace(0, 6, "amd64");
435 AddGnuCPlusPlusIncludePaths("/usr/include/g++",
439 case llvm::Triple::Minix:
440 AddGnuCPlusPlusIncludePaths("/usr/gnu/include/c++/4.4.3",
443 case llvm::Triple::Solaris:
444 AddGnuCPlusPlusIncludePaths("/usr/gcc/4.5/include/c++/4.5.2/",
445 "i386-pc-solaris2.11", "", "", triple);
446 // Solaris - Fall though..
447 case llvm::Triple::AuroraUX:
449 AddGnuCPlusPlusIncludePaths("/opt/gcc4/include/c++/4.2.4",
450 "i386-pc-solaris2.11", "", "", triple);
457 void InitHeaderSearch::AddDefaultIncludePaths(const LangOptions &Lang,
458 const llvm::Triple &triple,
459 const HeaderSearchOptions &HSOpts) {
460 // NB: This code path is going away. All of the logic is moving into the
461 // driver which has the information necessary to do target-specific
462 // selections of default include paths. Each target which moves there will be
463 // exempted from this logic here until we can delete the entire pile of code.
464 switch (triple.getOS()) {
466 break; // Everything else continues to use this routine's logic.
468 case llvm::Triple::Linux:
469 case llvm::Triple::Win32:
473 if (Lang.CPlusPlus && HSOpts.UseStandardCXXIncludes &&
474 HSOpts.UseStandardSystemIncludes) {
475 if (HSOpts.UseLibcxx) {
476 if (triple.isOSDarwin()) {
477 // On Darwin, libc++ may be installed alongside the compiler in
479 llvm::sys::Path P(HSOpts.ResourceDir);
481 P.eraseComponent(); // Remove version from foo/lib/clang/version
482 P.eraseComponent(); // Remove clang from foo/lib/clang
484 // Get foo/lib/c++/v1
485 P.appendComponent("c++");
486 P.appendComponent("v1");
487 AddUnmappedPath(P.str(), CXXSystem, false);
490 // On Solaris, include the support directory for things like xlocale and
491 // fudged system headers.
492 if (triple.getOS() == llvm::Triple::Solaris)
493 AddPath("/usr/include/c++/v1/support/solaris", CXXSystem, false);
495 AddPath("/usr/include/c++/v1", CXXSystem, false);
497 AddDefaultCPlusPlusIncludePaths(triple, HSOpts);
501 AddDefaultCIncludePaths(triple, HSOpts);
503 // Add the default framework include paths on Darwin.
504 if (HSOpts.UseStandardSystemIncludes) {
505 if (triple.isOSDarwin()) {
506 AddPath("/System/Library/Frameworks", System, true);
507 AddPath("/Library/Frameworks", System, true);
512 /// RemoveDuplicates - If there are duplicate directory entries in the specified
513 /// search list, remove the later (dead) ones. Returns the number of non-system
514 /// headers removed, which is used to update NumAngled.
515 static unsigned RemoveDuplicates(std::vector<DirectoryLookup> &SearchList,
516 unsigned First, bool Verbose) {
517 llvm::SmallPtrSet<const DirectoryEntry *, 8> SeenDirs;
518 llvm::SmallPtrSet<const DirectoryEntry *, 8> SeenFrameworkDirs;
519 llvm::SmallPtrSet<const HeaderMap *, 8> SeenHeaderMaps;
520 unsigned NonSystemRemoved = 0;
521 for (unsigned i = First; i != SearchList.size(); ++i) {
522 unsigned DirToRemove = i;
524 const DirectoryLookup &CurEntry = SearchList[i];
526 if (CurEntry.isNormalDir()) {
527 // If this isn't the first time we've seen this dir, remove it.
528 if (SeenDirs.insert(CurEntry.getDir()))
530 } else if (CurEntry.isFramework()) {
531 // If this isn't the first time we've seen this framework dir, remove it.
532 if (SeenFrameworkDirs.insert(CurEntry.getFrameworkDir()))
535 assert(CurEntry.isHeaderMap() && "Not a headermap or normal dir?");
536 // If this isn't the first time we've seen this headermap, remove it.
537 if (SeenHeaderMaps.insert(CurEntry.getHeaderMap()))
541 // If we have a normal #include dir/framework/headermap that is shadowed
542 // later in the chain by a system include location, we actually want to
543 // ignore the user's request and drop the user dir... keeping the system
544 // dir. This is weird, but required to emulate GCC's search path correctly.
546 // Since dupes of system dirs are rare, just rescan to find the original
547 // that we're nuking instead of using a DenseMap.
548 if (CurEntry.getDirCharacteristic() != SrcMgr::C_User) {
549 // Find the dir that this is the same of.
551 for (FirstDir = 0; ; ++FirstDir) {
552 assert(FirstDir != i && "Didn't find dupe?");
554 const DirectoryLookup &SearchEntry = SearchList[FirstDir];
556 // If these are different lookup types, then they can't be the dupe.
557 if (SearchEntry.getLookupType() != CurEntry.getLookupType())
561 if (CurEntry.isNormalDir())
562 isSame = SearchEntry.getDir() == CurEntry.getDir();
563 else if (CurEntry.isFramework())
564 isSame = SearchEntry.getFrameworkDir() == CurEntry.getFrameworkDir();
566 assert(CurEntry.isHeaderMap() && "Not a headermap or normal dir?");
567 isSame = SearchEntry.getHeaderMap() == CurEntry.getHeaderMap();
574 // If the first dir in the search path is a non-system dir, zap it
575 // instead of the system one.
576 if (SearchList[FirstDir].getDirCharacteristic() == SrcMgr::C_User)
577 DirToRemove = FirstDir;
581 llvm::errs() << "ignoring duplicate directory \""
582 << CurEntry.getName() << "\"\n";
583 if (DirToRemove != i)
584 llvm::errs() << " as it is a non-system directory that duplicates "
585 << "a system directory\n";
587 if (DirToRemove != i)
590 // This is reached if the current entry is a duplicate. Remove the
591 // DirToRemove (usually the current dir).
592 SearchList.erase(SearchList.begin()+DirToRemove);
595 return NonSystemRemoved;
599 void InitHeaderSearch::Realize(const LangOptions &Lang) {
600 // Concatenate ANGLE+SYSTEM+AFTER chains together into SearchList.
601 std::vector<DirectoryLookup> SearchList;
602 SearchList.reserve(IncludePath.size());
604 // Quoted arguments go first.
605 for (path_iterator it = IncludePath.begin(), ie = IncludePath.end();
607 if (it->first == Quoted)
608 SearchList.push_back(it->second);
610 // Deduplicate and remember index.
611 RemoveDuplicates(SearchList, 0, Verbose);
612 unsigned NumQuoted = SearchList.size();
614 for (path_iterator it = IncludePath.begin(), ie = IncludePath.end();
616 if (it->first == Angled || it->first == IndexHeaderMap)
617 SearchList.push_back(it->second);
620 RemoveDuplicates(SearchList, NumQuoted, Verbose);
621 unsigned NumAngled = SearchList.size();
623 for (path_iterator it = IncludePath.begin(), ie = IncludePath.end();
625 if (it->first == System || it->first == ExternCSystem ||
626 (!Lang.ObjC1 && !Lang.CPlusPlus && it->first == CSystem) ||
627 (/*FIXME !Lang.ObjC1 && */Lang.CPlusPlus && it->first == CXXSystem) ||
628 (Lang.ObjC1 && !Lang.CPlusPlus && it->first == ObjCSystem) ||
629 (Lang.ObjC1 && Lang.CPlusPlus && it->first == ObjCXXSystem))
630 SearchList.push_back(it->second);
633 for (path_iterator it = IncludePath.begin(), ie = IncludePath.end();
635 if (it->first == After)
636 SearchList.push_back(it->second);
639 // Remove duplicates across both the Angled and System directories. GCC does
640 // this and failing to remove duplicates across these two groups breaks
642 unsigned NonSystemRemoved = RemoveDuplicates(SearchList, NumQuoted, Verbose);
643 NumAngled -= NonSystemRemoved;
645 bool DontSearchCurDir = false; // TODO: set to true if -I- is set?
646 Headers.SetSearchPaths(SearchList, NumQuoted, NumAngled, DontSearchCurDir);
648 Headers.SetSystemHeaderPrefixes(SystemHeaderPrefixes);
650 // If verbose, print the list of directories that will be searched.
652 llvm::errs() << "#include \"...\" search starts here:\n";
653 for (unsigned i = 0, e = SearchList.size(); i != e; ++i) {
655 llvm::errs() << "#include <...> search starts here:\n";
656 const char *Name = SearchList[i].getName();
658 if (SearchList[i].isNormalDir())
660 else if (SearchList[i].isFramework())
661 Suffix = " (framework directory)";
663 assert(SearchList[i].isHeaderMap() && "Unknown DirectoryLookup");
664 Suffix = " (headermap)";
666 llvm::errs() << " " << Name << Suffix << "\n";
668 llvm::errs() << "End of search list.\n";
672 void clang::ApplyHeaderSearchOptions(HeaderSearch &HS,
673 const HeaderSearchOptions &HSOpts,
674 const LangOptions &Lang,
675 const llvm::Triple &Triple) {
676 InitHeaderSearch Init(HS, HSOpts.Verbose, HSOpts.Sysroot);
678 // Add the user defined entries.
679 for (unsigned i = 0, e = HSOpts.UserEntries.size(); i != e; ++i) {
680 const HeaderSearchOptions::Entry &E = HSOpts.UserEntries[i];
681 if (E.IgnoreSysRoot) {
682 Init.AddUnmappedPath(E.Path, E.Group, E.IsFramework);
684 Init.AddPath(E.Path, E.Group, E.IsFramework);
688 Init.AddDefaultIncludePaths(Lang, Triple, HSOpts);
690 for (unsigned i = 0, e = HSOpts.SystemHeaderPrefixes.size(); i != e; ++i)
691 Init.AddSystemHeaderPrefix(HSOpts.SystemHeaderPrefixes[i].Prefix,
692 HSOpts.SystemHeaderPrefixes[i].IsSystemHeader);
694 if (HSOpts.UseBuiltinIncludes) {
695 // Set up the builtin include directory in the module map.
696 llvm::sys::Path P(HSOpts.ResourceDir);
697 P.appendComponent("include");
698 if (const DirectoryEntry *Dir = HS.getFileMgr().getDirectory(P.str()))
699 HS.getModuleMap().setBuiltinIncludeDir(Dir);