| //===--- Multilib.h ---------------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_CLANG_DRIVER_MULTILIB_H |
| #define LLVM_CLANG_DRIVER_MULTILIB_H |
| |
| #include "clang/Basic/LLVM.h" |
| #include "llvm/ADT/STLExtras.h" |
| #include "llvm/Option/Option.h" |
| #include <functional> |
| #include <string> |
| #include <vector> |
| |
| namespace clang { |
| namespace driver { |
| |
| /// This corresponds to a single GCC Multilib, or a segment of one controlled |
| /// by a command line flag |
| class Multilib { |
| public: |
| typedef std::vector<std::string> flags_list; |
| |
| private: |
| std::string GCCSuffix; |
| std::string OSSuffix; |
| std::string IncludeSuffix; |
| flags_list Flags; |
| |
| public: |
| Multilib(StringRef GCCSuffix = "", StringRef OSSuffix = "", |
| StringRef IncludeSuffix = ""); |
| |
| /// \brief Get the detected GCC installation path suffix for the multi-arch |
| /// target variant. Always starts with a '/', unless empty |
| const std::string &gccSuffix() const { |
| assert(GCCSuffix.empty() || |
| (StringRef(GCCSuffix).front() == '/' && GCCSuffix.size() > 1)); |
| return GCCSuffix; |
| } |
| /// Set the GCC installation path suffix. |
| Multilib &gccSuffix(StringRef S); |
| |
| /// \brief Get the detected os path suffix for the multi-arch |
| /// target variant. Always starts with a '/', unless empty |
| const std::string &osSuffix() const { |
| assert(OSSuffix.empty() || |
| (StringRef(OSSuffix).front() == '/' && OSSuffix.size() > 1)); |
| return OSSuffix; |
| } |
| /// Set the os path suffix. |
| Multilib &osSuffix(StringRef S); |
| |
| /// \brief Get the include directory suffix. Always starts with a '/', unless |
| /// empty |
| const std::string &includeSuffix() const { |
| assert(IncludeSuffix.empty() || |
| (StringRef(IncludeSuffix).front() == '/' && IncludeSuffix.size() > 1)); |
| return IncludeSuffix; |
| } |
| /// Set the include directory suffix |
| Multilib &includeSuffix(StringRef S); |
| |
| /// \brief Get the flags that indicate or contraindicate this multilib's use |
| /// All elements begin with either '+' or '-' |
| const flags_list &flags() const { return Flags; } |
| flags_list &flags() { return Flags; } |
| /// Add a flag to the flags list |
| Multilib &flag(StringRef F) { |
| assert(F.front() == '+' || F.front() == '-'); |
| Flags.push_back(F); |
| return *this; |
| } |
| |
| /// \brief print summary of the Multilib |
| void print(raw_ostream &OS) const; |
| |
| /// Check whether any of the 'against' flags contradict the 'for' flags. |
| bool isValid() const; |
| |
| /// Check whether the default is selected |
| bool isDefault() const |
| { return GCCSuffix.empty() && OSSuffix.empty() && IncludeSuffix.empty(); } |
| |
| bool operator==(const Multilib &Other) const; |
| }; |
| |
| raw_ostream &operator<<(raw_ostream &OS, const Multilib &M); |
| |
| class MultilibSet { |
| public: |
| typedef std::vector<Multilib> multilib_list; |
| typedef multilib_list::iterator iterator; |
| typedef multilib_list::const_iterator const_iterator; |
| |
| typedef std::function<std::vector<std::string>(const Multilib &M)> |
| IncludeDirsFunc; |
| |
| typedef llvm::function_ref<bool(const Multilib &)> FilterCallback; |
| |
| private: |
| multilib_list Multilibs; |
| IncludeDirsFunc IncludeCallback; |
| IncludeDirsFunc FilePathsCallback; |
| |
| public: |
| MultilibSet() {} |
| |
| /// Add an optional Multilib segment |
| MultilibSet &Maybe(const Multilib &M); |
| |
| /// Add a set of mutually incompatible Multilib segments |
| MultilibSet &Either(const Multilib &M1, const Multilib &M2); |
| MultilibSet &Either(const Multilib &M1, const Multilib &M2, |
| const Multilib &M3); |
| MultilibSet &Either(const Multilib &M1, const Multilib &M2, |
| const Multilib &M3, const Multilib &M4); |
| MultilibSet &Either(const Multilib &M1, const Multilib &M2, |
| const Multilib &M3, const Multilib &M4, |
| const Multilib &M5); |
| MultilibSet &Either(ArrayRef<Multilib> Ms); |
| |
| /// Filter out some subset of the Multilibs using a user defined callback |
| MultilibSet &FilterOut(FilterCallback F); |
| /// Filter out those Multilibs whose gccSuffix matches the given expression |
| MultilibSet &FilterOut(const char *Regex); |
| |
| /// Add a completed Multilib to the set |
| void push_back(const Multilib &M); |
| |
| /// Union this set of multilibs with another |
| void combineWith(const MultilibSet &MS); |
| |
| /// Remove all of thie multilibs from the set |
| void clear() { Multilibs.clear(); } |
| |
| iterator begin() { return Multilibs.begin(); } |
| const_iterator begin() const { return Multilibs.begin(); } |
| |
| iterator end() { return Multilibs.end(); } |
| const_iterator end() const { return Multilibs.end(); } |
| |
| /// Pick the best multilib in the set, \returns false if none are compatible |
| bool select(const Multilib::flags_list &Flags, Multilib &M) const; |
| |
| unsigned size() const { return Multilibs.size(); } |
| |
| void print(raw_ostream &OS) const; |
| |
| MultilibSet &setIncludeDirsCallback(IncludeDirsFunc F) { |
| IncludeCallback = std::move(F); |
| return *this; |
| } |
| const IncludeDirsFunc &includeDirsCallback() const { return IncludeCallback; } |
| |
| MultilibSet &setFilePathsCallback(IncludeDirsFunc F) { |
| FilePathsCallback = std::move(F); |
| return *this; |
| } |
| const IncludeDirsFunc &filePathsCallback() const { return FilePathsCallback; } |
| |
| private: |
| /// Apply the filter to Multilibs and return the subset that remains |
| static multilib_list filterCopy(FilterCallback F, const multilib_list &Ms); |
| |
| /// Apply the filter to the multilib_list, removing those that don't match |
| static void filterInPlace(FilterCallback F, multilib_list &Ms); |
| }; |
| |
| raw_ostream &operator<<(raw_ostream &OS, const MultilibSet &MS); |
| } |
| } |
| |
| #endif |
| |