зеркало из https://github.com/microsoft/clang-1.git
370 строки
14 KiB
C++
370 строки
14 KiB
C++
//===--- 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/InitHeaderSearch.h"
|
|
#include "clang/Lex/HeaderSearch.h"
|
|
#include "clang/Basic/FileManager.h"
|
|
#include "clang/Basic/LangOptions.h"
|
|
#include "llvm/ADT/SmallString.h"
|
|
#include "llvm/ADT/SmallPtrSet.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
#include "llvm/System/Path.h"
|
|
#include "llvm/Config/config.h"
|
|
#include <cstdio>
|
|
using namespace clang;
|
|
|
|
void InitHeaderSearch::AddPath(const llvm::StringRef &Path,
|
|
IncludeDirGroup Group, bool isCXXAware,
|
|
bool isUserSupplied, bool isFramework,
|
|
bool IgnoreSysRoot) {
|
|
assert(!Path.empty() && "can't handle empty path here");
|
|
FileManager &FM = Headers.getFileMgr();
|
|
|
|
// Compute the actual path, taking into consideration -isysroot.
|
|
llvm::SmallString<256> MappedPath;
|
|
|
|
// 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.append(isysroot.begin(), isysroot.end());
|
|
}
|
|
|
|
MappedPath.append(Path.begin(), Path.end());
|
|
|
|
// 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::AddEnvVarPaths(const char *Name) {
|
|
const char* at = getenv(Name);
|
|
if (!at || *at == 0) // Empty string should not add '.' path.
|
|
return;
|
|
|
|
const char* delim = strchr(at, llvm::sys::PathSeparator);
|
|
while (delim != 0) {
|
|
if (delim-at == 0)
|
|
AddPath(".", Angled, false, true, false);
|
|
else
|
|
AddPath(llvm::StringRef(at, delim-at), Angled, false, true, false);
|
|
at = delim + 1;
|
|
delim = strchr(at, llvm::sys::PathSeparator);
|
|
}
|
|
if (*at == 0)
|
|
AddPath(".", Angled, false, true, false);
|
|
else
|
|
AddPath(at, Angled, false, true, false);
|
|
}
|
|
|
|
|
|
void InitHeaderSearch::AddDefaultSystemIncludePaths(const LangOptions &Lang) {
|
|
// FIXME: temporary hack: hard-coded paths.
|
|
// FIXME: get these from the target?
|
|
|
|
#ifdef LLVM_ON_WIN32
|
|
if (Lang.CPlusPlus) {
|
|
// Mingw32 GCC version 4
|
|
AddPath("c:/mingw/lib/gcc/mingw32/4.3.0/include/c++",
|
|
System, true, false, false);
|
|
AddPath("c:/mingw/lib/gcc/mingw32/4.3.0/include/c++/mingw32",
|
|
System, true, false, false);
|
|
AddPath("c:/mingw/lib/gcc/mingw32/4.3.0/include/c++/backward",
|
|
System, true, false, false);
|
|
}
|
|
|
|
// Mingw32 GCC version 4
|
|
AddPath("C:/mingw/include", System, false, false, false);
|
|
#else
|
|
|
|
if (Lang.CPlusPlus) {
|
|
AddPath("/usr/include/c++/4.2.1", System, true, false, false);
|
|
AddPath("/usr/include/c++/4.2.1/i686-apple-darwin10", System, true, false,
|
|
false);
|
|
AddPath("/usr/include/c++/4.2.1/backward", System, true, false, false);
|
|
|
|
AddPath("/usr/include/c++/4.0.0", System, true, false, false);
|
|
AddPath("/usr/include/c++/4.0.0/i686-apple-darwin8", System, true, false,
|
|
false);
|
|
AddPath("/usr/include/c++/4.0.0/backward", System, true, false, false);
|
|
|
|
// Ubuntu 7.10 - Gutsy Gibbon
|
|
AddPath("/usr/include/c++/4.1.3", System, true, false, false);
|
|
AddPath("/usr/include/c++/4.1.3/i486-linux-gnu", System, true, false,
|
|
false);
|
|
AddPath("/usr/include/c++/4.1.3/backward", System, true, false, false);
|
|
|
|
// Ubuntu 9.04
|
|
AddPath("/usr/include/c++/4.3.3", System, true, false, false);
|
|
AddPath("/usr/include/c++/4.3.3/x86_64-linux-gnu/", System, true, false,
|
|
false);
|
|
AddPath("/usr/include/c++/4.3.3/backward", System, true, false, false);
|
|
|
|
// Fedora 8
|
|
AddPath("/usr/include/c++/4.1.2", System, true, false, false);
|
|
AddPath("/usr/include/c++/4.1.2/i386-redhat-linux", System, true, false,
|
|
false);
|
|
AddPath("/usr/include/c++/4.1.2/backward", System, true, false, false);
|
|
|
|
// Fedora 9
|
|
AddPath("/usr/include/c++/4.3.0", System, true, false, false);
|
|
AddPath("/usr/include/c++/4.3.0/i386-redhat-linux", System, true, false,
|
|
false);
|
|
AddPath("/usr/include/c++/4.3.0/backward", System, true, false, false);
|
|
|
|
// Fedora 10
|
|
AddPath("/usr/include/c++/4.3.2", System, true, false, false);
|
|
AddPath("/usr/include/c++/4.3.2/i386-redhat-linux", System, true, false,
|
|
false);
|
|
AddPath("/usr/include/c++/4.3.2/backward", System, true, false, false);
|
|
|
|
// openSUSE 11.1
|
|
AddPath("/usr/include/c++/4.3", System, true, false, false);
|
|
AddPath("/usr/include/c++/4.3/i586-suse-linux", System, true, false,
|
|
false);
|
|
AddPath("/usr/include/c++/4.3/x86_64-suse-linux", System, true, false,
|
|
false);
|
|
AddPath("/usr/include/c++/4.3/backward", System, true, false, false);
|
|
|
|
// openSUSE 11.2
|
|
AddPath("/usr/include/c++/4.4", System, true, false, false);
|
|
AddPath("/usr/include/c++/4.4/i586-suse-linux", System, true, false,
|
|
false);
|
|
AddPath("/usr/include/c++/4.4/x86_64-suse-linux", System, true, false,
|
|
false);
|
|
AddPath("/usr/include/c++/4.4/backward", System, true, false, false);
|
|
|
|
// Arch Linux 2008-06-24
|
|
AddPath("/usr/include/c++/4.3.1", System, true, false, false);
|
|
AddPath("/usr/include/c++/4.3.1/i686-pc-linux-gnu", System, true, false,
|
|
false);
|
|
AddPath("/usr/include/c++/4.3.1/backward", System, true, false, false);
|
|
AddPath("/usr/include/c++/4.3.1/x86_64-unknown-linux-gnu", System, true,
|
|
false, false);
|
|
|
|
// Gentoo x86 2009.0 stable
|
|
AddPath("/usr/lib/gcc/i686-pc-linux-gnu/4.3.2/include/g++-v4", System,
|
|
true, false, false);
|
|
AddPath("/usr/lib/gcc/i686-pc-linux-gnu/4.3.2/include/g++-v4/"
|
|
"i686-pc-linux-gnu", System, true, false, false);
|
|
AddPath(" /usr/lib/gcc/i686-pc-linux-gnu/4.3.2/include/g++-v4/backward",
|
|
System, true, false, false);
|
|
|
|
// Gentoo x86 2008.0 stable
|
|
AddPath("/usr/lib/gcc/i686-pc-linux-gnu/4.1.2/include/g++-v4", System,
|
|
true, false, false);
|
|
AddPath("/usr/lib/gcc/i686-pc-linux-gnu/4.1.2/include/g++-v4/"
|
|
"i686-pc-linux-gnu", System, true, false, false);
|
|
AddPath("/usr/lib/gcc/i686-pc-linux-gnu/4.1.2/include/g++-v4/backward",
|
|
System, true, false, false);
|
|
|
|
// Ubuntu 8.10
|
|
AddPath("/usr/include/c++/4.3/i486-linux-gnu", System, true, false, false);
|
|
|
|
// Gentoo amd64 stable
|
|
AddPath("/usr/lib/gcc/x86_64-pc-linux-gnu/4.1.2/include/g++-v4", System,
|
|
true, false, false);
|
|
AddPath("/usr/lib/gcc/x86_64-pc-linux-gnu/4.1.2/include/g++-v4/"
|
|
"i686-pc-linux-gnu", System, true, false, false);
|
|
AddPath("/usr/lib/gcc/x86_64-pc-linux-gnu/4.1.2/include/g++-v4/backward",
|
|
System, true, false, false);
|
|
|
|
// DragonFly
|
|
AddPath("/usr/include/c++/4.1", System, true, false, false);
|
|
|
|
// FreeBSD
|
|
AddPath("/usr/include/c++/4.2", System, true, false, false);
|
|
|
|
// AuroraUX
|
|
AddPath("/opt/gcc4/include/c++/4.2.4", System, true, false, false);
|
|
AddPath("/opt/gcc4/include/c++/4.2.4/i386-pc-solaris2.11", System, true, false, false);
|
|
}
|
|
|
|
AddPath("/usr/local/include", System, false, false, false);
|
|
|
|
AddPath("/usr/include", System, false, false, false);
|
|
AddPath("/System/Library/Frameworks", System, true, false, true);
|
|
AddPath("/Library/Frameworks", System, true, false, true);
|
|
#endif
|
|
}
|
|
|
|
void InitHeaderSearch::AddDefaultEnvVarPaths(const LangOptions &Lang) {
|
|
AddEnvVarPaths("CPATH");
|
|
if (Lang.CPlusPlus && Lang.ObjC1)
|
|
AddEnvVarPaths("OBJCPLUS_INCLUDE_PATH");
|
|
else if (Lang.CPlusPlus)
|
|
AddEnvVarPaths("CPLUS_INCLUDE_PATH");
|
|
else if (Lang.ObjC1)
|
|
AddEnvVarPaths("OBJC_INCLUDE_PATH");
|
|
else
|
|
AddEnvVarPaths("C_INCLUDE_PATH");
|
|
}
|
|
|
|
|
|
/// 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) {
|
|
fprintf(stderr, "ignoring duplicate directory \"%s\"\n",
|
|
CurEntry.getName());
|
|
if (DirToRemove != i)
|
|
fprintf(stderr, " 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) {
|
|
fprintf(stderr, "#include \"...\" search starts here:\n");
|
|
unsigned QuotedIdx = IncludeGroup[Quoted].size();
|
|
for (unsigned i = 0, e = SearchList.size(); i != e; ++i) {
|
|
if (i == QuotedIdx)
|
|
fprintf(stderr, "#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)";
|
|
}
|
|
fprintf(stderr, " %s%s\n", Name, Suffix);
|
|
}
|
|
fprintf(stderr, "End of search list.\n");
|
|
}
|
|
}
|
|
|