InitHeaderSearch.cpp revision 199990
175115Sfenner//===--- InitHeaderSearch.cpp - Initialize header search paths ----------*-===// 275115Sfenner// 375115Sfenner// The LLVM Compiler Infrastructure 475115Sfenner// 575115Sfenner// This file is distributed under the University of Illinois Open Source 675115Sfenner// License. See LICENSE.TXT for details. 775115Sfenner// 875115Sfenner//===----------------------------------------------------------------------===// 975115Sfenner// 1075115Sfenner// This file implements the InitHeaderSearch class. 1175115Sfenner// 1275115Sfenner//===----------------------------------------------------------------------===// 1375115Sfenner 1475115Sfenner#include "clang/Frontend/Utils.h" 1575115Sfenner#include "clang/Basic/FileManager.h" 1675115Sfenner#include "clang/Basic/LangOptions.h" 1775115Sfenner#include "clang/Frontend/HeaderSearchOptions.h" 1875115Sfenner#include "clang/Lex/HeaderSearch.h" 1975115Sfenner#include "llvm/ADT/SmallString.h" 2075115Sfenner#include "llvm/ADT/SmallPtrSet.h" 2175115Sfenner#include "llvm/ADT/SmallVector.h" 2275115Sfenner#include "llvm/ADT/StringExtras.h" 2375115Sfenner#include "llvm/ADT/Triple.h" 2475115Sfenner#include "llvm/Support/raw_ostream.h" 2575115Sfenner#include "llvm/System/Path.h" 2675115Sfenner#include "llvm/Config/config.h" 27127668Sbms#include <cstdio> 28127668Sbms#ifdef _MSC_VER 2975115Sfenner #define WIN32_LEAN_AND_MEAN 1 3075115Sfenner #include <windows.h> 3175115Sfenner#endif 3275115Sfennerusing namespace clang; 3375115Sfennerusing namespace clang::frontend; 3475115Sfenner 35127668Sbmsnamespace { 36127668Sbms 3775115Sfenner/// InitHeaderSearch - This class makes it easier to set the search paths of 3875115Sfenner/// a HeaderSearch object. InitHeaderSearch stores several search path lists 3975115Sfenner/// internally, which can be sent to a HeaderSearch object in one swoop. 4075115Sfennerclass InitHeaderSearch { 4175115Sfenner std::vector<DirectoryLookup> IncludeGroup[4]; 4275115Sfenner HeaderSearch& Headers; 4375115Sfenner bool Verbose; 4475115Sfenner std::string isysroot; 4575115Sfenner 4675115Sfennerpublic: 4775115Sfenner 4875115Sfenner InitHeaderSearch(HeaderSearch &HS, 4975115Sfenner bool verbose = false, const std::string &iSysroot = "") 5075115Sfenner : Headers(HS), Verbose(verbose), isysroot(iSysroot) {} 5175115Sfenner 5275115Sfenner /// AddPath - Add the specified path to the specified group list. 5375115Sfenner void AddPath(const llvm::StringRef &Path, IncludeDirGroup Group, 5475115Sfenner bool isCXXAware, bool isUserSupplied, 5575115Sfenner bool isFramework, bool IgnoreSysRoot = false); 5675115Sfenner 5775115Sfenner /// AddGnuCPlusPlusIncludePaths - Add the necessary paths to suport a gnu 5875115Sfenner /// libstdc++. 5975115Sfenner void AddGnuCPlusPlusIncludePaths(const std::string &Base, 6075115Sfenner const char *ArchDir, 6175115Sfenner const char *Dir32, 6275115Sfenner const char *Dir64, 6375115Sfenner const llvm::Triple &triple); 6475115Sfenner 6575115Sfenner /// AddMinGWCPlusPlusIncludePaths - Add the necessary paths to suport a MinGW 6698524Sfenner /// libstdc++. 6798524Sfenner void AddMinGWCPlusPlusIncludePaths(const std::string &Base, 6898524Sfenner const char *Arch, 6998524Sfenner const char *Version); 7098524Sfenner 71127668Sbms /// AddDelimitedPaths - Add a list of paths delimited by the system PATH 7298524Sfenner /// separator. The processing follows that of the CPATH variable for gcc. 7398524Sfenner void AddDelimitedPaths(const char *String); 7498524Sfenner 7598524Sfenner // AddDefaultCIncludePaths - Add paths that should always be searched. 7698524Sfenner void AddDefaultCIncludePaths(const llvm::Triple &triple); 7798524Sfenner 7898524Sfenner // AddDefaultCPlusPlusIncludePaths - Add paths that should be searched when 7998524Sfenner // compiling c++. 8098524Sfenner void AddDefaultCPlusPlusIncludePaths(const llvm::Triple &triple); 8198524Sfenner 8298524Sfenner /// AddDefaultSystemIncludePaths - Adds the default system include paths so 8398524Sfenner /// that e.g. stdio.h is found. 8498524Sfenner void AddDefaultSystemIncludePaths(const LangOptions &Lang, 8598524Sfenner const llvm::Triple &triple); 8698524Sfenner 8775115Sfenner /// Realize - Merges all search path lists into one list and send it to 8875115Sfenner /// HeaderSearch. 8975115Sfenner void Realize(); 9075115Sfenner}; 9198524Sfenner 9275115Sfenner} 9375115Sfenner 9475115Sfennervoid InitHeaderSearch::AddPath(const llvm::StringRef &Path, 9575115Sfenner IncludeDirGroup Group, bool isCXXAware, 96127668Sbms bool isUserSupplied, bool isFramework, 97127668Sbms bool IgnoreSysRoot) { 9875115Sfenner assert(!Path.empty() && "can't handle empty path here"); 99127668Sbms FileManager &FM = Headers.getFileMgr(); 10098524Sfenner 10175115Sfenner // Compute the actual path, taking into consideration -isysroot. 10275115Sfenner llvm::SmallString<256> MappedPath; 103127668Sbms 10475115Sfenner // Handle isysroot. 10575115Sfenner if (Group == System && !IgnoreSysRoot) { 106127668Sbms // FIXME: Portability. This should be a sys::Path interface, this doesn't 107127668Sbms // handle things like C:\ right, nor win32 \\network\device\blah. 10875115Sfenner if (isysroot.size() != 1 || isysroot[0] != '/') // Add isysroot if present. 10975115Sfenner MappedPath.append(isysroot.begin(), isysroot.end()); 11075115Sfenner } 11175115Sfenner 11275115Sfenner MappedPath.append(Path.begin(), Path.end()); 11375115Sfenner 114127668Sbms // Compute the DirectoryLookup type. 11575115Sfenner SrcMgr::CharacteristicKind Type; 116127668Sbms if (Group == Quoted || Group == Angled) 11775115Sfenner Type = SrcMgr::C_User; 11875115Sfenner else if (isCXXAware) 11975115Sfenner Type = SrcMgr::C_System; 12075115Sfenner else 12175115Sfenner Type = SrcMgr::C_ExternCSystem; 12275115Sfenner 12375115Sfenner 12475115Sfenner // If the directory exists, add it. 12575115Sfenner if (const DirectoryEntry *DE = FM.getDirectory(MappedPath.str())) { 12675115Sfenner IncludeGroup[Group].push_back(DirectoryLookup(DE, Type, isUserSupplied, 12775115Sfenner isFramework)); 12898524Sfenner return; 12975115Sfenner } 13098524Sfenner 13198524Sfenner // Check to see if this is an apple-style headermap (which are not allowed to 13298524Sfenner // be frameworks). 13375115Sfenner if (!isFramework) { 13475115Sfenner if (const FileEntry *FE = FM.getFile(MappedPath.str())) { 13575115Sfenner if (const HeaderMap *HM = Headers.CreateHeaderMap(FE)) { 13675115Sfenner // It is a headermap, add it to the search path. 13775115Sfenner IncludeGroup[Group].push_back(DirectoryLookup(HM, Type,isUserSupplied)); 13875115Sfenner return; 139 } 140 } 141 } 142 143 if (Verbose) 144 llvm::errs() << "ignoring nonexistent directory \"" 145 << MappedPath.str() << "\"\n"; 146} 147 148 149void InitHeaderSearch::AddDelimitedPaths(const char *at) { 150 if (*at == 0) // Empty string should not add '.' path. 151 return; 152 153 const char* delim = strchr(at, llvm::sys::PathSeparator); 154 while (delim != 0) { 155 if (delim-at == 0) 156 AddPath(".", Angled, false, true, false); 157 else 158 AddPath(llvm::StringRef(at, delim-at), Angled, false, true, false); 159 at = delim + 1; 160 delim = strchr(at, llvm::sys::PathSeparator); 161 } 162 if (*at == 0) 163 AddPath(".", Angled, false, true, false); 164 else 165 AddPath(at, Angled, false, true, false); 166} 167 168void InitHeaderSearch::AddGnuCPlusPlusIncludePaths(const std::string &Base, 169 const char *ArchDir, 170 const char *Dir32, 171 const char *Dir64, 172 const llvm::Triple &triple) { 173 // Add the base dir 174 AddPath(Base, System, true, false, false); 175 176 // Add the multilib dirs 177 llvm::Triple::ArchType arch = triple.getArch(); 178 bool is64bit = arch == llvm::Triple::ppc64 || arch == llvm::Triple::x86_64; 179 if (is64bit) 180 AddPath(Base + "/" + ArchDir + "/" + Dir64, System, true, false, false); 181 else 182 AddPath(Base + "/" + ArchDir + "/" + Dir32, System, true, false, false); 183 184 // Add the backward dir 185 AddPath(Base + "/backward", System, true, false, false); 186} 187 188void InitHeaderSearch::AddMinGWCPlusPlusIncludePaths(const std::string &Base, 189 const char *Arch, 190 const char *Version) { 191 std::string localBase = Base + "/" + Arch + "/" + Version + "/include"; 192 AddPath(localBase, System, true, false, false); 193 AddPath(localBase + "/c++", System, true, false, false); 194 AddPath(localBase + "/c++/backward", System, true, false, false); 195} 196 197 // FIXME: This probably should goto to some platform utils place. 198#ifdef _MSC_VER 199 200 // Read registry string. 201 // This also supports a means to look for high-versioned keys by use 202 // of a $VERSION placeholder in the key path. 203 // $VERSION in the key path is a placeholder for the version number, 204 // causing the highest value path to be searched for and used. 205 // I.e. "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\$VERSION". 206 // There can be additional characters in the component. Only the numberic 207 // characters are compared. 208bool getSystemRegistryString(const char *keyPath, const char *valueName, 209 char *value, size_t maxLength) { 210 HKEY hRootKey = NULL; 211 HKEY hKey = NULL; 212 const char* subKey = NULL; 213 DWORD valueType; 214 DWORD valueSize = maxLength - 1; 215 long lResult; 216 bool returnValue = false; 217 if (strncmp(keyPath, "HKEY_CLASSES_ROOT\\", 18) == 0) { 218 hRootKey = HKEY_CLASSES_ROOT; 219 subKey = keyPath + 18; 220 } 221 else if (strncmp(keyPath, "HKEY_USERS\\", 11) == 0) { 222 hRootKey = HKEY_USERS; 223 subKey = keyPath + 11; 224 } 225 else if (strncmp(keyPath, "HKEY_LOCAL_MACHINE\\", 19) == 0) { 226 hRootKey = HKEY_LOCAL_MACHINE; 227 subKey = keyPath + 19; 228 } 229 else if (strncmp(keyPath, "HKEY_CURRENT_USER\\", 18) == 0) { 230 hRootKey = HKEY_CURRENT_USER; 231 subKey = keyPath + 18; 232 } 233 else 234 return(false); 235 const char *placeHolder = strstr(subKey, "$VERSION"); 236 char bestName[256]; 237 bestName[0] = '\0'; 238 // If we have a $VERSION placeholder, do the highest-version search. 239 if (placeHolder) { 240 const char *keyEnd = placeHolder - 1; 241 const char *nextKey = placeHolder; 242 // Find end of previous key. 243 while ((keyEnd > subKey) && (*keyEnd != '\\')) 244 keyEnd--; 245 // Find end of key containing $VERSION. 246 while (*nextKey && (*nextKey != '\\')) 247 nextKey++; 248 size_t partialKeyLength = keyEnd - subKey; 249 char partialKey[256]; 250 if (partialKeyLength > sizeof(partialKey)) 251 partialKeyLength = sizeof(partialKey); 252 strncpy(partialKey, subKey, partialKeyLength); 253 partialKey[partialKeyLength] = '\0'; 254 HKEY hTopKey = NULL; 255 lResult = RegOpenKeyEx(hRootKey, partialKey, 0, KEY_READ, &hTopKey); 256 if (lResult == ERROR_SUCCESS) { 257 char keyName[256]; 258 int bestIndex = -1; 259 double bestValue = 0.0; 260 DWORD index, size = sizeof(keyName) - 1; 261 for (index = 0; RegEnumKeyEx(hTopKey, index, keyName, &size, NULL, 262 NULL, NULL, NULL) == ERROR_SUCCESS; index++) { 263 const char *sp = keyName; 264 while (*sp && !isdigit(*sp)) 265 sp++; 266 if (!*sp) 267 continue; 268 const char *ep = sp + 1; 269 while (*ep && (isdigit(*ep) || (*ep == '.'))) 270 ep++; 271 char numBuf[32]; 272 strncpy(numBuf, sp, sizeof(numBuf) - 1); 273 numBuf[sizeof(numBuf) - 1] = '\0'; 274 double value = strtod(numBuf, NULL); 275 if (value > bestValue) { 276 bestIndex = (int)index; 277 bestValue = value; 278 strcpy(bestName, keyName); 279 } 280 size = sizeof(keyName) - 1; 281 } 282 // If we found the highest versioned key, open the key and get the value. 283 if (bestIndex != -1) { 284 // Append rest of key. 285 strncat(bestName, nextKey, sizeof(bestName) - 1); 286 bestName[sizeof(bestName) - 1] = '\0'; 287 // Open the chosen key path remainder. 288 lResult = RegOpenKeyEx(hTopKey, bestName, 0, KEY_READ, &hKey); 289 if (lResult == ERROR_SUCCESS) { 290 lResult = RegQueryValueEx(hKey, valueName, NULL, &valueType, 291 (LPBYTE)value, &valueSize); 292 if (lResult == ERROR_SUCCESS) 293 returnValue = true; 294 RegCloseKey(hKey); 295 } 296 } 297 RegCloseKey(hTopKey); 298 } 299 } 300 else { 301 lResult = RegOpenKeyEx(hRootKey, subKey, 0, KEY_READ, &hKey); 302 if (lResult == ERROR_SUCCESS) { 303 lResult = RegQueryValueEx(hKey, valueName, NULL, &valueType, 304 (LPBYTE)value, &valueSize); 305 if (lResult == ERROR_SUCCESS) 306 returnValue = true; 307 RegCloseKey(hKey); 308 } 309 } 310 return(returnValue); 311} 312#else // _MSC_VER 313 // Read registry string. 314bool getSystemRegistryString(const char *, const char *, char *, size_t) { 315 return(false); 316} 317#endif // _MSC_VER 318 319 // Get Visual Studio installation directory. 320bool getVisualStudioDir(std::string &path) { 321 char vsIDEInstallDir[256]; 322 // Try the Windows registry first. 323 bool hasVCDir = getSystemRegistryString( 324 "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\$VERSION", 325 "InstallDir", vsIDEInstallDir, sizeof(vsIDEInstallDir) - 1); 326 // If we have both vc80 and vc90, pick version we were compiled with. 327 if (hasVCDir && vsIDEInstallDir[0]) { 328 char *p = (char*)strstr(vsIDEInstallDir, "\\Common7\\IDE"); 329 if (p) 330 *p = '\0'; 331 path = vsIDEInstallDir; 332 return(true); 333 } 334 else { 335 // Try the environment. 336 const char* vs90comntools = getenv("VS90COMNTOOLS"); 337 const char* vs80comntools = getenv("VS80COMNTOOLS"); 338 const char* vscomntools = NULL; 339 // If we have both vc80 and vc90, pick version we were compiled with. 340 if (vs90comntools && vs80comntools) { 341 #if (_MSC_VER >= 1500) // VC90 342 vscomntools = vs90comntools; 343 #elif (_MSC_VER == 1400) // VC80 344 vscomntools = vs80comntools; 345 #else 346 vscomntools = vs90comntools; 347 #endif 348 } 349 else if (vs90comntools) 350 vscomntools = vs90comntools; 351 else if (vs80comntools) 352 vscomntools = vs80comntools; 353 if (vscomntools && *vscomntools) { 354 char *p = (char*)strstr(vscomntools, "\\Common7\\Tools"); 355 if (p) 356 *p = '\0'; 357 path = vscomntools; 358 return(true); 359 } 360 else 361 return(false); 362 } 363 return(false); 364} 365 366 // Get Windows SDK installation directory. 367bool getWindowsSDKDir(std::string &path) { 368 char windowsSDKInstallDir[256]; 369 // Try the Windows registry. 370 bool hasSDKDir = getSystemRegistryString( 371 "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Microsoft SDKs\\Windows\\$VERSION", 372 "InstallationFolder", windowsSDKInstallDir, sizeof(windowsSDKInstallDir) - 1); 373 // If we have both vc80 and vc90, pick version we were compiled with. 374 if (hasSDKDir && windowsSDKInstallDir[0]) { 375 path = windowsSDKInstallDir; 376 return(true); 377 } 378 return(false); 379} 380 381void InitHeaderSearch::AddDefaultCIncludePaths(const llvm::Triple &triple) { 382 // FIXME: temporary hack: hard-coded paths. 383 llvm::StringRef CIncludeDirs(C_INCLUDE_DIRS); 384 if (CIncludeDirs != "") { 385 llvm::SmallVector<llvm::StringRef, 5> dirs; 386 CIncludeDirs.split(dirs, ":"); 387 for (llvm::SmallVectorImpl<llvm::StringRef>::iterator i = dirs.begin(); 388 i != dirs.end(); 389 ++i) 390 AddPath(*i, System, false, false, false); 391 return; 392 } 393 llvm::Triple::OSType os = triple.getOS(); 394 switch (os) { 395 case llvm::Triple::Win32: 396 { 397 std::string VSDir; 398 std::string WindowsSDKDir; 399 if (getVisualStudioDir(VSDir)) { 400 AddPath(VSDir + "\\VC\\include", System, false, false, false); 401 if (getWindowsSDKDir(WindowsSDKDir)) 402 AddPath(WindowsSDKDir, System, false, false, false); 403 else 404 AddPath(VSDir + "\\VC\\PlatformSDK\\Include", 405 System, false, false, false); 406 } 407 else { 408 // Default install paths. 409 AddPath("C:/Program Files/Microsoft Visual Studio 9.0/VC/include", 410 System, false, false, false); 411 AddPath( 412 "C:/Program Files/Microsoft Visual Studio 9.0/VC/PlatformSDK/Include", 413 System, false, false, false); 414 AddPath("C:/Program Files/Microsoft Visual Studio 8/VC/include", 415 System, false, false, false); 416 AddPath( 417 "C:/Program Files/Microsoft Visual Studio 8/VC/PlatformSDK/Include", 418 System, false, false, false); 419 // For some clang developers. 420 AddPath("G:/Program Files/Microsoft Visual Studio 9.0/VC/include", 421 System, false, false, false); 422 AddPath( 423 "G:/Program Files/Microsoft Visual Studio 9.0/VC/PlatformSDK/Include", 424 System, false, false, false); 425 } 426 } 427 break; 428 case llvm::Triple::MinGW64: 429 case llvm::Triple::MinGW32: 430 AddPath("c:/mingw/include", System, true, false, false); 431 break; 432 default: 433 break; 434 } 435 436 AddPath("/usr/local/include", System, false, false, false); 437 AddPath("/usr/include", System, false, false, false); 438} 439 440void InitHeaderSearch::AddDefaultCPlusPlusIncludePaths(const llvm::Triple &triple) { 441 llvm::Triple::OSType os = triple.getOS(); 442 llvm::StringRef CxxIncludeRoot(CXX_INCLUDE_ROOT); 443 if (CxxIncludeRoot != "") { 444 llvm::StringRef CxxIncludeArch(CXX_INCLUDE_ARCH); 445 if (CxxIncludeArch == "") 446 AddGnuCPlusPlusIncludePaths(CxxIncludeRoot, triple.str().c_str(), 447 CXX_INCLUDE_32BIT_DIR, CXX_INCLUDE_64BIT_DIR, triple); 448 else 449 AddGnuCPlusPlusIncludePaths(CxxIncludeRoot, CXX_INCLUDE_ARCH, 450 CXX_INCLUDE_32BIT_DIR, CXX_INCLUDE_64BIT_DIR, triple); 451 return; 452 } 453 // FIXME: temporary hack: hard-coded paths. 454 switch (os) { 455 case llvm::Triple::Cygwin: 456 AddPath("/lib/gcc/i686-pc-cygwin/3.4.4/include", 457 System, true, false, false); 458 AddPath("/lib/gcc/i686-pc-cygwin/3.4.4/include/c++", 459 System, true, false, false); 460 break; 461 case llvm::Triple::MinGW64: 462 // Try gcc 4.4.0 463 AddMinGWCPlusPlusIncludePaths("c:/MinGW/lib/gcc", "mingw64", "4.4.0"); 464 // Try gcc 4.3.0 465 AddMinGWCPlusPlusIncludePaths("c:/MinGW/lib/gcc", "mingw64", "4.3.0"); 466 // Fall through. 467 case llvm::Triple::MinGW32: 468 // Try gcc 4.4.0 469 AddMinGWCPlusPlusIncludePaths("c:/MinGW/lib/gcc", "mingw32", "4.4.0"); 470 // Try gcc 4.3.0 471 AddMinGWCPlusPlusIncludePaths("c:/MinGW/lib/gcc", "mingw32", "4.3.0"); 472 break; 473 case llvm::Triple::Darwin: 474 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.2.1", 475 "i686-apple-darwin10", "", "x86_64", triple); 476 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.0.0", 477 "i686-apple-darwin8", "", "", triple); 478 break; 479 case llvm::Triple::Linux: 480 // Ubuntu 7.10 - Gutsy Gibbon 481 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.1.3", 482 "i486-linux-gnu", "", "", triple); 483 // Ubuntu 9.04 484 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.3.3", 485 "x86_64-linux-gnu","32", "", triple); 486 // Ubuntu 9.10 487 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.4.1", 488 "x86_64-linux-gnu", "32", "", triple); 489 // Fedora 8 490 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.1.2", 491 "i386-redhat-linux", "", "", triple); 492 // Fedora 9 493 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.3.0", 494 "i386-redhat-linux", "", "", triple); 495 // Fedora 10 496 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.3.2", 497 "i386-redhat-linux","", "", triple); 498 499 // Fedora 11 500 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.4.1", 501 "i586-redhat-linux","", "", triple); 502 503 // openSUSE 11.1 32 bit 504 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.3", 505 "i586-suse-linux", "", "", triple); 506 // openSUSE 11.1 64 bit 507 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.3", 508 "x86_64-suse-linux", "32", "", triple); 509 // openSUSE 11.2 510 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.4", 511 "i586-suse-linux", "", "", triple); 512 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.4", 513 "x86_64-suse-linux", "", "", triple); 514 // Arch Linux 2008-06-24 515 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.3.1", 516 "i686-pc-linux-gnu", "", "", triple); 517 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.3.1", 518 "x86_64-unknown-linux-gnu", "", "", triple); 519 // Gentoo x86 2009.1 stable 520 AddGnuCPlusPlusIncludePaths( 521 "/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4", 522 "i686-pc-linux-gnu", "", "", triple); 523 // Gentoo x86 2009.0 stable 524 AddGnuCPlusPlusIncludePaths( 525 "/usr/lib/gcc/i686-pc-linux-gnu/4.3.2/include/g++-v4", 526 "i686-pc-linux-gnu", "", "", triple); 527 // Gentoo x86 2008.0 stable 528 AddGnuCPlusPlusIncludePaths( 529 "/usr/lib/gcc/i686-pc-linux-gnu/4.1.2/include/g++-v4", 530 "i686-pc-linux-gnu", "", "", triple); 531 // Ubuntu 8.10 532 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.3", 533 "i486-pc-linux-gnu", "", "", triple); 534 // Ubuntu 9.04 535 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.3", 536 "i486-linux-gnu","", "", triple); 537 // Gentoo amd64 stable 538 AddGnuCPlusPlusIncludePaths( 539 "/usr/lib/gcc/x86_64-pc-linux-gnu/4.1.2/include/g++-v4", 540 "i686-pc-linux-gnu", "", "", triple); 541 // Exherbo (2009-10-26) 542 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.4.2", 543 "x86_64-pc-linux-gnu", "32", "", triple); 544 AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.4.2", 545 "i686-pc-linux-gnu", "", "", triple); 546 break; 547 case llvm::Triple::FreeBSD: 548 // DragonFly 549 AddPath("/usr/include/c++/4.1", System, true, false, false); 550 // FreeBSD 551 AddPath("/usr/include/c++/4.2", System, true, false, false); 552 break; 553 case llvm::Triple::Solaris: 554 // Solaris - Fall though.. 555 case llvm::Triple::AuroraUX: 556 // AuroraUX 557 AddGnuCPlusPlusIncludePaths("/opt/gcc4/include/c++/4.2.4", 558 "i386-pc-solaris2.11", "", "", triple); 559 break; 560 default: 561 break; 562 } 563} 564 565void InitHeaderSearch::AddDefaultSystemIncludePaths(const LangOptions &Lang, 566 const llvm::Triple &triple) { 567 if (Lang.CPlusPlus) 568 AddDefaultCPlusPlusIncludePaths(triple); 569 570 AddDefaultCIncludePaths(triple); 571 572 // Add the default framework include paths on Darwin. 573 if (triple.getOS() == llvm::Triple::Darwin) { 574 AddPath("/System/Library/Frameworks", System, true, false, true); 575 AddPath("/Library/Frameworks", System, true, false, true); 576 } 577} 578 579/// RemoveDuplicates - If there are duplicate directory entries in the specified 580/// search list, remove the later (dead) ones. 581static void RemoveDuplicates(std::vector<DirectoryLookup> &SearchList, 582 bool Verbose) { 583 llvm::SmallPtrSet<const DirectoryEntry *, 8> SeenDirs; 584 llvm::SmallPtrSet<const DirectoryEntry *, 8> SeenFrameworkDirs; 585 llvm::SmallPtrSet<const HeaderMap *, 8> SeenHeaderMaps; 586 for (unsigned i = 0; i != SearchList.size(); ++i) { 587 unsigned DirToRemove = i; 588 589 const DirectoryLookup &CurEntry = SearchList[i]; 590 591 if (CurEntry.isNormalDir()) { 592 // If this isn't the first time we've seen this dir, remove it. 593 if (SeenDirs.insert(CurEntry.getDir())) 594 continue; 595 } else if (CurEntry.isFramework()) { 596 // If this isn't the first time we've seen this framework dir, remove it. 597 if (SeenFrameworkDirs.insert(CurEntry.getFrameworkDir())) 598 continue; 599 } else { 600 assert(CurEntry.isHeaderMap() && "Not a headermap or normal dir?"); 601 // If this isn't the first time we've seen this headermap, remove it. 602 if (SeenHeaderMaps.insert(CurEntry.getHeaderMap())) 603 continue; 604 } 605 606 // If we have a normal #include dir/framework/headermap that is shadowed 607 // later in the chain by a system include location, we actually want to 608 // ignore the user's request and drop the user dir... keeping the system 609 // dir. This is weird, but required to emulate GCC's search path correctly. 610 // 611 // Since dupes of system dirs are rare, just rescan to find the original 612 // that we're nuking instead of using a DenseMap. 613 if (CurEntry.getDirCharacteristic() != SrcMgr::C_User) { 614 // Find the dir that this is the same of. 615 unsigned FirstDir; 616 for (FirstDir = 0; ; ++FirstDir) { 617 assert(FirstDir != i && "Didn't find dupe?"); 618 619 const DirectoryLookup &SearchEntry = SearchList[FirstDir]; 620 621 // If these are different lookup types, then they can't be the dupe. 622 if (SearchEntry.getLookupType() != CurEntry.getLookupType()) 623 continue; 624 625 bool isSame; 626 if (CurEntry.isNormalDir()) 627 isSame = SearchEntry.getDir() == CurEntry.getDir(); 628 else if (CurEntry.isFramework()) 629 isSame = SearchEntry.getFrameworkDir() == CurEntry.getFrameworkDir(); 630 else { 631 assert(CurEntry.isHeaderMap() && "Not a headermap or normal dir?"); 632 isSame = SearchEntry.getHeaderMap() == CurEntry.getHeaderMap(); 633 } 634 635 if (isSame) 636 break; 637 } 638 639 // If the first dir in the search path is a non-system dir, zap it 640 // instead of the system one. 641 if (SearchList[FirstDir].getDirCharacteristic() == SrcMgr::C_User) 642 DirToRemove = FirstDir; 643 } 644 645 if (Verbose) { 646 fprintf(stderr, "ignoring duplicate directory \"%s\"\n", 647 CurEntry.getName()); 648 if (DirToRemove != i) 649 fprintf(stderr, " as it is a non-system directory that duplicates" 650 " a system directory\n"); 651 } 652 653 // This is reached if the current entry is a duplicate. Remove the 654 // DirToRemove (usually the current dir). 655 SearchList.erase(SearchList.begin()+DirToRemove); 656 --i; 657 } 658} 659 660 661void InitHeaderSearch::Realize() { 662 // Concatenate ANGLE+SYSTEM+AFTER chains together into SearchList. 663 std::vector<DirectoryLookup> SearchList; 664 SearchList = IncludeGroup[Angled]; 665 SearchList.insert(SearchList.end(), IncludeGroup[System].begin(), 666 IncludeGroup[System].end()); 667 SearchList.insert(SearchList.end(), IncludeGroup[After].begin(), 668 IncludeGroup[After].end()); 669 RemoveDuplicates(SearchList, Verbose); 670 RemoveDuplicates(IncludeGroup[Quoted], Verbose); 671 672 // Prepend QUOTED list on the search list. 673 SearchList.insert(SearchList.begin(), IncludeGroup[Quoted].begin(), 674 IncludeGroup[Quoted].end()); 675 676 677 bool DontSearchCurDir = false; // TODO: set to true if -I- is set? 678 Headers.SetSearchPaths(SearchList, IncludeGroup[Quoted].size(), 679 DontSearchCurDir); 680 681 // If verbose, print the list of directories that will be searched. 682 if (Verbose) { 683 fprintf(stderr, "#include \"...\" search starts here:\n"); 684 unsigned QuotedIdx = IncludeGroup[Quoted].size(); 685 for (unsigned i = 0, e = SearchList.size(); i != e; ++i) { 686 if (i == QuotedIdx) 687 fprintf(stderr, "#include <...> search starts here:\n"); 688 const char *Name = SearchList[i].getName(); 689 const char *Suffix; 690 if (SearchList[i].isNormalDir()) 691 Suffix = ""; 692 else if (SearchList[i].isFramework()) 693 Suffix = " (framework directory)"; 694 else { 695 assert(SearchList[i].isHeaderMap() && "Unknown DirectoryLookup"); 696 Suffix = " (headermap)"; 697 } 698 fprintf(stderr, " %s%s\n", Name, Suffix); 699 } 700 fprintf(stderr, "End of search list.\n"); 701 } 702} 703 704void clang::ApplyHeaderSearchOptions(HeaderSearch &HS, 705 const HeaderSearchOptions &HSOpts, 706 const LangOptions &Lang, 707 const llvm::Triple &Triple) { 708 InitHeaderSearch Init(HS, HSOpts.Verbose, HSOpts.Sysroot); 709 710 // Add the user defined entries. 711 for (unsigned i = 0, e = HSOpts.UserEntries.size(); i != e; ++i) { 712 const HeaderSearchOptions::Entry &E = HSOpts.UserEntries[i]; 713 Init.AddPath(E.Path, E.Group, false, E.IsUserSupplied, E.IsFramework, 714 false); 715 } 716 717 // Add entries from CPATH and friends. 718 Init.AddDelimitedPaths(HSOpts.EnvIncPath.c_str()); 719 if (Lang.CPlusPlus && Lang.ObjC1) 720 Init.AddDelimitedPaths(HSOpts.ObjCXXEnvIncPath.c_str()); 721 else if (Lang.CPlusPlus) 722 Init.AddDelimitedPaths(HSOpts.CXXEnvIncPath.c_str()); 723 else if (Lang.ObjC1) 724 Init.AddDelimitedPaths(HSOpts.ObjCEnvIncPath.c_str()); 725 else 726 Init.AddDelimitedPaths(HSOpts.CEnvIncPath.c_str()); 727 728 if (!HSOpts.BuiltinIncludePath.empty()) { 729 // Ignore the sys root, we *always* look for clang headers relative to 730 // supplied path. 731 Init.AddPath(HSOpts.BuiltinIncludePath, System, 732 false, false, false, /*IgnoreSysRoot=*/ true); 733 } 734 735 if (HSOpts.UseStandardIncludes) 736 Init.AddDefaultSystemIncludePaths(Lang, Triple); 737 738 Init.Realize(); 739} 740