Check in LLVM r95781.
diff --git a/lib/Frontend/InitHeaderSearch.cpp b/lib/Frontend/InitHeaderSearch.cpp
new file mode 100644
index 0000000..85287dd
--- /dev/null
+++ b/lib/Frontend/InitHeaderSearch.cpp
@@ -0,0 +1,754 @@
+//===--- 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.
+//
+//===----------------------------------------------------------------------===//
+
+#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/System/Path.h"
+#include "llvm/Config/config.h"
+#ifdef _MSC_VER
+ #define WIN32_LEAN_AND_MEAN 1
+ #include <windows.h>
+#endif
+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<DirectoryLookup> IncludeGroup[4];
+ HeaderSearch& Headers;
+ bool Verbose;
+ std::string isysroot;
+
+public:
+
+ InitHeaderSearch(HeaderSearch &HS,
+ bool verbose = false, const std::string &iSysroot = "")
+ : Headers(HS), Verbose(verbose), isysroot(iSysroot) {}
+
+ /// AddPath - Add the specified path to the specified group list.
+ void AddPath(const llvm::Twine &Path, IncludeDirGroup Group,
+ bool isCXXAware, bool isUserSupplied,
+ bool isFramework, bool IgnoreSysRoot = false);
+
+ /// AddGnuCPlusPlusIncludePaths - Add the necessary paths to suport a gnu
+ /// libstdc++.
+ void AddGnuCPlusPlusIncludePaths(llvm::StringRef Base,
+ llvm::StringRef ArchDir,
+ llvm::StringRef Dir32,
+ llvm::StringRef Dir64,
+ const llvm::Triple &triple);
+
+ /// AddMinGWCPlusPlusIncludePaths - Add the necessary paths to suport a MinGW
+ /// libstdc++.
+ void AddMinGWCPlusPlusIncludePaths(llvm::StringRef Base,
+ llvm::StringRef Arch,
+ llvm::StringRef Version);
+
+ /// AddDelimitedPaths - Add a list of paths delimited by the system PATH
+ /// separator. The processing follows that of the CPATH variable for gcc.
+ void AddDelimitedPaths(llvm::StringRef String);
+
+ // AddDefaultCIncludePaths - Add paths that should always be searched.
+ void AddDefaultCIncludePaths(const llvm::Triple &triple);
+
+ // AddDefaultCPlusPlusIncludePaths - Add paths that should be searched when
+ // compiling c++.
+ void AddDefaultCPlusPlusIncludePaths(const llvm::Triple &triple);
+
+ /// AddDefaultSystemIncludePaths - Adds the default system include paths so
+ /// that e.g. stdio.h is found.
+ void AddDefaultSystemIncludePaths(const LangOptions &Lang,
+ const llvm::Triple &triple);
+
+ /// Realize - Merges all search path lists into one list and send it to
+ /// HeaderSearch.
+ void Realize();
+};
+
+}
+
+void InitHeaderSearch::AddPath(const llvm::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> MappedPathStr;
+ llvm::raw_svector_ostream MappedPath(MappedPathStr);
+
+ // Handle isysroot.
+ if (Group == System && !IgnoreSysRoot) {
+ // FIXME: Portability. This should be a sys::Path interface, this doesn't
+ // handle things like C:\ right, nor win32 \\network\device\blah.
+ if (isysroot.size() != 1 || isysroot[0] != '/') // Add isysroot if present.
+ MappedPath << isysroot;
+ }
+
+ Path.print(MappedPath);
+
+ // Compute the DirectoryLookup type.
+ SrcMgr::CharacteristicKind Type;
+ if (Group == Quoted || Group == Angled)
+ 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(MappedPath.str())) {
+ IncludeGroup[Group].push_back(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(MappedPath.str())) {
+ if (const HeaderMap *HM = Headers.CreateHeaderMap(FE)) {
+ // It is a headermap, add it to the search path.
+ IncludeGroup[Group].push_back(DirectoryLookup(HM, Type,isUserSupplied));
+ return;
+ }
+ }
+ }
+
+ if (Verbose)
+ llvm::errs() << "ignoring nonexistent directory \""
+ << MappedPath.str() << "\"\n";
+}
+
+
+void InitHeaderSearch::AddDelimitedPaths(llvm::StringRef at) {
+ if (at.empty()) // Empty string should not add '.' path.
+ return;
+
+ llvm::StringRef::size_type delim;
+ while ((delim = at.find(llvm::sys::PathSeparator)) != llvm::StringRef::npos) {
+ if (delim == 0)
+ AddPath(".", Angled, false, true, false);
+ else
+ AddPath(at.substr(0, delim), Angled, false, true, false);
+ at = at.substr(delim + 1);
+ }
+
+ if (at.empty())
+ AddPath(".", Angled, false, true, false);
+ else
+ AddPath(at, Angled, false, true, false);
+}
+
+void InitHeaderSearch::AddGnuCPlusPlusIncludePaths(llvm::StringRef Base,
+ llvm::StringRef ArchDir,
+ llvm::StringRef Dir32,
+ llvm::StringRef Dir64,
+ const llvm::Triple &triple) {
+ // Add the base dir
+ AddPath(Base, System, 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, System, true, false, false);
+ else
+ AddPath(Base + "/" + ArchDir + "/" + Dir32, System, true, false, false);
+
+ // Add the backward dir
+ AddPath(Base + "/backward", System, true, false, false);
+}
+
+void InitHeaderSearch::AddMinGWCPlusPlusIncludePaths(llvm::StringRef Base,
+ llvm::StringRef Arch,
+ llvm::StringRef Version) {
+ AddPath(Base + "/" + Arch + "/" + Version + "/include",
+ System, true, false, false);
+ AddPath(Base + "/" + Arch + "/" + Version + "/include/c++",
+ System, true, false, false);
+ AddPath(Base + "/" + Arch + "/" + Version + "/include/c++/backward",
+ System, true, false, false);
+}
+
+ // FIXME: This probably should goto to some platform utils place.
+#ifdef _MSC_VER
+
+ // Read registry string.
+ // This also supports a means to look for high-versioned keys by use
+ // of a $VERSION placeholder in the key path.
+ // $VERSION in the key path is a placeholder for the version number,
+ // causing the highest value path to be searched for and used.
+ // I.e. "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\$VERSION".
+ // There can be additional characters in the component. Only the numberic
+ // characters are compared.
+static bool getSystemRegistryString(const char *keyPath, const char *valueName,
+ char *value, size_t maxLength) {
+ HKEY hRootKey = NULL;
+ HKEY hKey = NULL;
+ const char* subKey = NULL;
+ DWORD valueType;
+ DWORD valueSize = maxLength - 1;
+ long lResult;
+ bool returnValue = false;
+ if (strncmp(keyPath, "HKEY_CLASSES_ROOT\\", 18) == 0) {
+ hRootKey = HKEY_CLASSES_ROOT;
+ subKey = keyPath + 18;
+ }
+ else if (strncmp(keyPath, "HKEY_USERS\\", 11) == 0) {
+ hRootKey = HKEY_USERS;
+ subKey = keyPath + 11;
+ }
+ else if (strncmp(keyPath, "HKEY_LOCAL_MACHINE\\", 19) == 0) {
+ hRootKey = HKEY_LOCAL_MACHINE;
+ subKey = keyPath + 19;
+ }
+ else if (strncmp(keyPath, "HKEY_CURRENT_USER\\", 18) == 0) {
+ hRootKey = HKEY_CURRENT_USER;
+ subKey = keyPath + 18;
+ }
+ else
+ return(false);
+ const char *placeHolder = strstr(subKey, "$VERSION");
+ char bestName[256];
+ bestName[0] = '\0';
+ // If we have a $VERSION placeholder, do the highest-version search.
+ if (placeHolder) {
+ const char *keyEnd = placeHolder - 1;
+ const char *nextKey = placeHolder;
+ // Find end of previous key.
+ while ((keyEnd > subKey) && (*keyEnd != '\\'))
+ keyEnd--;
+ // Find end of key containing $VERSION.
+ while (*nextKey && (*nextKey != '\\'))
+ nextKey++;
+ size_t partialKeyLength = keyEnd - subKey;
+ char partialKey[256];
+ if (partialKeyLength > sizeof(partialKey))
+ partialKeyLength = sizeof(partialKey);
+ strncpy(partialKey, subKey, partialKeyLength);
+ partialKey[partialKeyLength] = '\0';
+ HKEY hTopKey = NULL;
+ lResult = RegOpenKeyEx(hRootKey, partialKey, 0, KEY_READ, &hTopKey);
+ if (lResult == ERROR_SUCCESS) {
+ char keyName[256];
+ int bestIndex = -1;
+ double bestValue = 0.0;
+ DWORD index, size = sizeof(keyName) - 1;
+ for (index = 0; RegEnumKeyEx(hTopKey, index, keyName, &size, NULL,
+ NULL, NULL, NULL) == ERROR_SUCCESS; index++) {
+ const char *sp = keyName;
+ while (*sp && !isdigit(*sp))
+ sp++;
+ if (!*sp)
+ continue;
+ const char *ep = sp + 1;
+ while (*ep && (isdigit(*ep) || (*ep == '.')))
+ ep++;
+ char numBuf[32];
+ strncpy(numBuf, sp, sizeof(numBuf) - 1);
+ numBuf[sizeof(numBuf) - 1] = '\0';
+ double value = strtod(numBuf, NULL);
+ if (value > bestValue) {
+ bestIndex = (int)index;
+ bestValue = value;
+ strcpy(bestName, keyName);
+ }
+ size = sizeof(keyName) - 1;
+ }
+ // If we found the highest versioned key, open the key and get the value.
+ if (bestIndex != -1) {
+ // Append rest of key.
+ strncat(bestName, nextKey, sizeof(bestName) - 1);
+ bestName[sizeof(bestName) - 1] = '\0';
+ // Open the chosen key path remainder.
+ lResult = RegOpenKeyEx(hTopKey, bestName, 0, KEY_READ, &hKey);
+ if (lResult == ERROR_SUCCESS) {
+ lResult = RegQueryValueEx(hKey, valueName, NULL, &valueType,
+ (LPBYTE)value, &valueSize);
+ if (lResult == ERROR_SUCCESS)
+ returnValue = true;
+ RegCloseKey(hKey);
+ }
+ }
+ RegCloseKey(hTopKey);
+ }
+ }
+ else {
+ lResult = RegOpenKeyEx(hRootKey, subKey, 0, KEY_READ, &hKey);
+ if (lResult == ERROR_SUCCESS) {
+ lResult = RegQueryValueEx(hKey, valueName, NULL, &valueType,
+ (LPBYTE)value, &valueSize);
+ if (lResult == ERROR_SUCCESS)
+ returnValue = true;
+ RegCloseKey(hKey);
+ }
+ }
+ return(returnValue);
+}
+#else // _MSC_VER
+ // Read registry string.
+static bool getSystemRegistryString(const char*, const char*, char*, size_t) {
+ return(false);
+}
+#endif // _MSC_VER
+
+ // Get Visual Studio installation directory.
+static bool getVisualStudioDir(std::string &path) {
+ char vsIDEInstallDir[256];
+ // Try the Windows registry first.
+ bool hasVCDir = getSystemRegistryString(
+ "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\$VERSION",
+ "InstallDir", vsIDEInstallDir, sizeof(vsIDEInstallDir) - 1);
+ // If we have both vc80 and vc90, pick version we were compiled with.
+ if (hasVCDir && vsIDEInstallDir[0]) {
+ char *p = (char*)strstr(vsIDEInstallDir, "\\Common7\\IDE");
+ if (p)
+ *p = '\0';
+ path = vsIDEInstallDir;
+ return(true);
+ }
+ else {
+ // Try the environment.
+ const char* vs90comntools = getenv("VS90COMNTOOLS");
+ const char* vs80comntools = getenv("VS80COMNTOOLS");
+ const char* vscomntools = NULL;
+ // If we have both vc80 and vc90, pick version we were compiled with.
+ if (vs90comntools && vs80comntools) {
+ #if (_MSC_VER >= 1500) // VC90
+ vscomntools = vs90comntools;
+ #elif (_MSC_VER == 1400) // VC80
+ vscomntools = vs80comntools;
+ #else
+ vscomntools = vs90comntools;
+ #endif
+ }
+ else if (vs90comntools)
+ vscomntools = vs90comntools;
+ else if (vs80comntools)
+ vscomntools = vs80comntools;
+ if (vscomntools && *vscomntools) {
+ char *p = (char*)strstr(vscomntools, "\\Common7\\Tools");
+ if (p)
+ *p = '\0';
+ path = vscomntools;
+ return(true);
+ }
+ else
+ return(false);
+ }
+ return(false);
+}
+
+ // Get Windows SDK installation directory.
+static bool getWindowsSDKDir(std::string &path) {
+ char windowsSDKInstallDir[256];
+ // Try the Windows registry.
+ bool hasSDKDir = getSystemRegistryString(
+ "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Microsoft SDKs\\Windows\\$VERSION",
+ "InstallationFolder", windowsSDKInstallDir, sizeof(windowsSDKInstallDir) - 1);
+ // If we have both vc80 and vc90, pick version we were compiled with.
+ if (hasSDKDir && windowsSDKInstallDir[0]) {
+ path = windowsSDKInstallDir;
+ return(true);
+ }
+ return(false);
+}
+
+void InitHeaderSearch::AddDefaultCIncludePaths(const llvm::Triple &triple) {
+ // FIXME: temporary hack: hard-coded paths.
+ llvm::StringRef CIncludeDirs(C_INCLUDE_DIRS);
+ if (CIncludeDirs != "") {
+ llvm::SmallVector<llvm::StringRef, 5> dirs;
+ CIncludeDirs.split(dirs, ":");
+ for (llvm::SmallVectorImpl<llvm::StringRef>::iterator i = dirs.begin();
+ i != dirs.end();
+ ++i)
+ AddPath(*i, System, false, false, false);
+ return;
+ }
+ llvm::Triple::OSType os = triple.getOS();
+ switch (os) {
+ case llvm::Triple::Win32:
+ {
+ std::string VSDir;
+ std::string WindowsSDKDir;
+ if (getVisualStudioDir(VSDir)) {
+ AddPath(VSDir + "\\VC\\include", System, false, false, false);
+ if (getWindowsSDKDir(WindowsSDKDir))
+ AddPath(WindowsSDKDir, System, false, false, false);
+ else
+ AddPath(VSDir + "\\VC\\PlatformSDK\\Include",
+ System, false, false, false);
+ }
+ else {
+ // Default install paths.
+ AddPath("C:/Program Files/Microsoft Visual Studio 9.0/VC/include",
+ System, false, false, false);
+ AddPath(
+ "C:/Program Files/Microsoft Visual Studio 9.0/VC/PlatformSDK/Include",
+ System, false, false, false);
+ AddPath("C:/Program Files/Microsoft Visual Studio 8/VC/include",
+ System, false, false, false);
+ AddPath(
+ "C:/Program Files/Microsoft Visual Studio 8/VC/PlatformSDK/Include",
+ System, false, false, false);
+ // For some clang developers.
+ AddPath("G:/Program Files/Microsoft Visual Studio 9.0/VC/include",
+ System, false, false, false);
+ AddPath(
+ "G:/Program Files/Microsoft Visual Studio 9.0/VC/PlatformSDK/Include",
+ System, false, false, false);
+ }
+ }
+ break;
+ case llvm::Triple::MinGW64:
+ case llvm::Triple::MinGW32:
+ AddPath("c:/mingw/include", System, true, false, false);
+ break;
+ default:
+ break;
+ }
+
+ AddPath("/usr/local/include", System, false, false, false);
+ AddPath("/usr/include", System, false, false, false);
+}
+
+void InitHeaderSearch::AddDefaultCPlusPlusIncludePaths(const llvm::Triple &triple) {
+ llvm::Triple::OSType os = triple.getOS();
+ llvm::StringRef CxxIncludeRoot(CXX_INCLUDE_ROOT);
+ if (CxxIncludeRoot != "") {
+ llvm::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.
+ switch (os) {
+ case llvm::Triple::Cygwin:
+ AddPath("/lib/gcc/i686-pc-cygwin/3.4.4/include",
+ System, true, false, false);
+ AddPath("/lib/gcc/i686-pc-cygwin/3.4.4/include/c++",
+ System, true, false, false);
+ break;
+ case llvm::Triple::MinGW64:
+ // Try gcc 4.4.0
+ AddMinGWCPlusPlusIncludePaths("c:/MinGW/lib/gcc", "mingw64", "4.4.0");
+ // Try gcc 4.3.0
+ AddMinGWCPlusPlusIncludePaths("c:/MinGW/lib/gcc", "mingw64", "4.3.0");
+ // Fall through.
+ case llvm::Triple::MinGW32:
+ // Try gcc 4.4.0
+ AddMinGWCPlusPlusIncludePaths("c:/MinGW/lib/gcc", "mingw32", "4.4.0");
+ // Try gcc 4.3.0
+ AddMinGWCPlusPlusIncludePaths("c:/MinGW/lib/gcc", "mingw32", "4.3.0");
+ break;
+ case llvm::Triple::Darwin:
+ 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::DragonFly:
+ AddPath("/usr/include/c++/4.1", System, true, false, false);
+ break;
+ case llvm::Triple::Linux:
+ // Exherbo (2010-01-25)
+ AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.4.3",
+ "x86_64-pc-linux-gnu", "32", "", triple);
+ AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.4.3",
+ "i686-pc-linux-gnu", "", "", triple);
+ // Debian sid
+ AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.4.2",
+ "x86_64-linux-gnu", "32", "", triple);
+ // Ubuntu 7.10 - Gutsy Gibbon
+ AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.1.3",
+ "i486-linux-gnu", "", "", triple);
+ // Ubuntu 9.04
+ AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.3.3",
+ "x86_64-linux-gnu","32", "", triple);
+ // Ubuntu 9.10
+ AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.4.1",
+ "x86_64-linux-gnu", "32", "", triple);
+ // Fedora 8
+ AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.1.2",
+ "i386-redhat-linux", "", "", triple);
+ // Fedora 9
+ AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.3.0",
+ "i386-redhat-linux", "", "", triple);
+ // Fedora 10
+ AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.3.2",
+ "i386-redhat-linux","", "", triple);
+
+ // Fedora 10 x86_64
+ AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.3.2",
+ "x86_64-redhat-linux", "32", "", triple);
+
+ // Fedora 11
+ AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.4.1",
+ "i586-redhat-linux","", "", triple);
+
+ // Fedora 12
+ AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.4.2",
+ "i686-redhat-linux","", "", triple);
+
+ // openSUSE 11.1 32 bit
+ AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.3",
+ "i586-suse-linux", "", "", triple);
+ // openSUSE 11.1 64 bit
+ AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.3",
+ "x86_64-suse-linux", "32", "", triple);
+ // openSUSE 11.2
+ AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.4",
+ "i586-suse-linux", "", "", triple);
+ AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.4",
+ "x86_64-suse-linux", "", "", triple);
+ // Arch Linux 2008-06-24
+ AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.3.1",
+ "i686-pc-linux-gnu", "", "", triple);
+ AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.3.1",
+ "x86_64-unknown-linux-gnu", "", "", triple);
+ // Gentoo x86 2009.1 stable
+ AddGnuCPlusPlusIncludePaths(
+ "/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4",
+ "i686-pc-linux-gnu", "", "", triple);
+ // Gentoo x86 2009.0 stable
+ AddGnuCPlusPlusIncludePaths(
+ "/usr/lib/gcc/i686-pc-linux-gnu/4.3.2/include/g++-v4",
+ "i686-pc-linux-gnu", "", "", triple);
+ // Gentoo x86 2008.0 stable
+ AddGnuCPlusPlusIncludePaths(
+ "/usr/lib/gcc/i686-pc-linux-gnu/4.1.2/include/g++-v4",
+ "i686-pc-linux-gnu", "", "", triple);
+ // Ubuntu 8.10
+ AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.3",
+ "i486-pc-linux-gnu", "", "", triple);
+ // Ubuntu 9.04
+ AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.3",
+ "i486-linux-gnu","", "", triple);
+ // Gentoo amd64 stable
+ AddGnuCPlusPlusIncludePaths(
+ "/usr/lib/gcc/x86_64-pc-linux-gnu/4.1.2/include/g++-v4",
+ "i686-pc-linux-gnu", "", "", triple);
+ break;
+ case llvm::Triple::FreeBSD:
+ AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.2", "", "", "", 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::AddDefaultSystemIncludePaths(const LangOptions &Lang,
+ const llvm::Triple &triple) {
+ if (Lang.CPlusPlus)
+ AddDefaultCPlusPlusIncludePaths(triple);
+
+ AddDefaultCIncludePaths(triple);
+
+ // Add the default framework include paths on Darwin.
+ if (triple.getOS() == llvm::Triple::Darwin) {
+ 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.
+static void RemoveDuplicates(std::vector<DirectoryLookup> &SearchList,
+ bool Verbose) {
+ llvm::SmallPtrSet<const DirectoryEntry *, 8> SeenDirs;
+ llvm::SmallPtrSet<const DirectoryEntry *, 8> SeenFrameworkDirs;
+ llvm::SmallPtrSet<const HeaderMap *, 8> SeenHeaderMaps;
+ for (unsigned i = 0; 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";
+ }
+
+ // This is reached if the current entry is a duplicate. Remove the
+ // DirToRemove (usually the current dir).
+ SearchList.erase(SearchList.begin()+DirToRemove);
+ --i;
+ }
+}
+
+
+void InitHeaderSearch::Realize() {
+ // Concatenate ANGLE+SYSTEM+AFTER chains together into SearchList.
+ std::vector<DirectoryLookup> SearchList;
+ SearchList = IncludeGroup[Angled];
+ SearchList.insert(SearchList.end(), IncludeGroup[System].begin(),
+ IncludeGroup[System].end());
+ SearchList.insert(SearchList.end(), IncludeGroup[After].begin(),
+ IncludeGroup[After].end());
+ RemoveDuplicates(SearchList, Verbose);
+ RemoveDuplicates(IncludeGroup[Quoted], Verbose);
+
+ // Prepend QUOTED list on the search list.
+ SearchList.insert(SearchList.begin(), IncludeGroup[Quoted].begin(),
+ IncludeGroup[Quoted].end());
+
+
+ bool DontSearchCurDir = false; // TODO: set to true if -I- is set?
+ Headers.SetSearchPaths(SearchList, IncludeGroup[Quoted].size(),
+ DontSearchCurDir);
+
+ // If verbose, print the list of directories that will be searched.
+ if (Verbose) {
+ llvm::errs() << "#include \"...\" search starts here:\n";
+ unsigned QuotedIdx = IncludeGroup[Quoted].size();
+ for (unsigned i = 0, e = SearchList.size(); i != e; ++i) {
+ if (i == QuotedIdx)
+ 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, false, E.IsUserSupplied, E.IsFramework,
+ false);
+ }
+
+ // Add entries from CPATH and friends.
+ Init.AddDelimitedPaths(HSOpts.EnvIncPath);
+ if (Lang.CPlusPlus && Lang.ObjC1)
+ Init.AddDelimitedPaths(HSOpts.ObjCXXEnvIncPath);
+ else if (Lang.CPlusPlus)
+ Init.AddDelimitedPaths(HSOpts.CXXEnvIncPath);
+ else if (Lang.ObjC1)
+ Init.AddDelimitedPaths(HSOpts.ObjCEnvIncPath);
+ else
+ Init.AddDelimitedPaths(HSOpts.CEnvIncPath);
+
+ 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");
+ Init.AddPath(P.str(), System, false, false, false, /*IgnoreSysRoot=*/ true);
+ }
+
+ if (HSOpts.UseStandardIncludes)
+ Init.AddDefaultSystemIncludePaths(Lang, Triple);
+
+ Init.Realize();
+}