head 1.1; branch 1.1.1; access; symbols netbsd-11-0-RC4:1.1.1.4 netbsd-11-0-RC3:1.1.1.4 netbsd-11-0-RC2:1.1.1.4 netbsd-11-0-RC1:1.1.1.4 perseant-exfatfs-base-20250801:1.1.1.4 netbsd-11:1.1.1.4.0.10 netbsd-11-base:1.1.1.4 netbsd-10-1-RELEASE:1.1.1.4 perseant-exfatfs-base-20240630:1.1.1.4 perseant-exfatfs:1.1.1.4.0.8 perseant-exfatfs-base:1.1.1.4 netbsd-8-3-RELEASE:1.1.1.2 netbsd-9-4-RELEASE:1.1.1.3 netbsd-10-0-RELEASE:1.1.1.4 netbsd-10-0-RC6:1.1.1.4 netbsd-10-0-RC5:1.1.1.4 netbsd-10-0-RC4:1.1.1.4 netbsd-10-0-RC3:1.1.1.4 netbsd-10-0-RC2:1.1.1.4 netbsd-10-0-RC1:1.1.1.4 netbsd-10:1.1.1.4.0.6 netbsd-10-base:1.1.1.4 netbsd-9-3-RELEASE:1.1.1.3 cjep_sun2x:1.1.1.4.0.4 cjep_sun2x-base:1.1.1.4 cjep_staticlib_x-base1:1.1.1.4 netbsd-9-2-RELEASE:1.1.1.3 cjep_staticlib_x:1.1.1.4.0.2 cjep_staticlib_x-base:1.1.1.4 netbsd-9-1-RELEASE:1.1.1.3 phil-wifi-20200421:1.1.1.4 phil-wifi-20200411:1.1.1.4 phil-wifi-20200406:1.1.1.4 netbsd-8-2-RELEASE:1.1.1.2 netbsd-9-0-RELEASE:1.1.1.3 netbsd-9-0-RC2:1.1.1.3 netbsd-9-0-RC1:1.1.1.3 netbsd-9:1.1.1.3.0.2 netbsd-9-base:1.1.1.3 phil-wifi-20190609:1.1.1.3 netbsd-8-1-RELEASE:1.1.1.2 netbsd-8-1-RC1:1.1.1.2 pgoyette-compat-merge-20190127:1.1.1.2.12.1 pgoyette-compat-20190127:1.1.1.3 pgoyette-compat-20190118:1.1.1.3 pgoyette-compat-1226:1.1.1.3 pgoyette-compat-1126:1.1.1.3 pgoyette-compat-1020:1.1.1.3 pgoyette-compat-0930:1.1.1.3 pgoyette-compat-0906:1.1.1.3 netbsd-7-2-RELEASE:1.1.1.1 pgoyette-compat-0728:1.1.1.3 clang-337282:1.1.1.3 netbsd-8-0-RELEASE:1.1.1.2 phil-wifi:1.1.1.2.0.14 phil-wifi-base:1.1.1.2 pgoyette-compat-0625:1.1.1.2 netbsd-8-0-RC2:1.1.1.2 pgoyette-compat-0521:1.1.1.2 pgoyette-compat-0502:1.1.1.2 pgoyette-compat-0422:1.1.1.2 netbsd-8-0-RC1:1.1.1.2 pgoyette-compat-0415:1.1.1.2 pgoyette-compat-0407:1.1.1.2 pgoyette-compat-0330:1.1.1.2 pgoyette-compat-0322:1.1.1.2 pgoyette-compat-0315:1.1.1.2 netbsd-7-1-2-RELEASE:1.1.1.1 pgoyette-compat:1.1.1.2.0.12 pgoyette-compat-base:1.1.1.2 netbsd-7-1-1-RELEASE:1.1.1.1 clang-319952:1.1.1.2 matt-nb8-mediatek:1.1.1.2.0.10 matt-nb8-mediatek-base:1.1.1.2 clang-309604:1.1.1.2 perseant-stdc-iso10646:1.1.1.2.0.8 perseant-stdc-iso10646-base:1.1.1.2 netbsd-8:1.1.1.2.0.6 netbsd-8-base:1.1.1.2 prg-localcount2-base3:1.1.1.2 prg-localcount2-base2:1.1.1.2 prg-localcount2-base1:1.1.1.2 prg-localcount2:1.1.1.2.0.4 prg-localcount2-base:1.1.1.2 pgoyette-localcount-20170426:1.1.1.2 bouyer-socketcan-base1:1.1.1.2 pgoyette-localcount-20170320:1.1.1.2 netbsd-7-1:1.1.1.1.0.16 netbsd-7-1-RELEASE:1.1.1.1 netbsd-7-1-RC2:1.1.1.1 clang-294123:1.1.1.2 netbsd-7-nhusb-base-20170116:1.1.1.1 bouyer-socketcan:1.1.1.2.0.2 bouyer-socketcan-base:1.1.1.2 clang-291444:1.1.1.2 pgoyette-localcount-20170107:1.1.1.1 netbsd-7-1-RC1:1.1.1.1 pgoyette-localcount-20161104:1.1.1.1 netbsd-7-0-2-RELEASE:1.1.1.1 localcount-20160914:1.1.1.1 netbsd-7-nhusb:1.1.1.1.0.14 netbsd-7-nhusb-base:1.1.1.1 clang-280599:1.1.1.1 pgoyette-localcount-20160806:1.1.1.1 pgoyette-localcount-20160726:1.1.1.1 pgoyette-localcount:1.1.1.1.0.12 pgoyette-localcount-base:1.1.1.1 netbsd-7-0-1-RELEASE:1.1.1.1 clang-261930:1.1.1.1 netbsd-7-0:1.1.1.1.0.10 netbsd-7-0-RELEASE:1.1.1.1 netbsd-7-0-RC3:1.1.1.1 netbsd-7-0-RC2:1.1.1.1 netbsd-7-0-RC1:1.1.1.1 clang-237755:1.1.1.1 clang-232565:1.1.1.1 clang-227398:1.1.1.1 tls-maxphys-base:1.1.1.1 tls-maxphys:1.1.1.1.0.8 netbsd-7:1.1.1.1.0.6 netbsd-7-base:1.1.1.1 clang-215315:1.1.1.1 clang-209886:1.1.1.1 yamt-pagecache:1.1.1.1.0.4 yamt-pagecache-base9:1.1.1.1 tls-earlyentropy:1.1.1.1.0.2 tls-earlyentropy-base:1.1.1.1 riastradh-xf86-video-intel-2-7-1-pre-2-21-15:1.1.1.1 riastradh-drm2-base3:1.1.1.1 clang-202566:1.1.1.1 clang-201163:1.1.1.1 clang-199312:1.1.1.1 clang-198450:1.1.1.1 clang-196603:1.1.1.1 clang-195771:1.1.1.1 LLVM:1.1.1; locks; strict; comment @// @; 1.1 date 2013.11.28.14.14.49; author joerg; state Exp; branches 1.1.1.1; next ; commitid ow8OybrawrB1f3fx; 1.1.1.1 date 2013.11.28.14.14.49; author joerg; state Exp; branches 1.1.1.1.4.1 1.1.1.1.8.1 1.1.1.1.12.1; next 1.1.1.2; commitid ow8OybrawrB1f3fx; 1.1.1.2 date 2017.01.11.10.34.47; author joerg; state Exp; branches 1.1.1.2.12.1 1.1.1.2.14.1; next 1.1.1.3; commitid CNnUNfII1jgNmxBz; 1.1.1.3 date 2018.07.17.18.31.09; author joerg; state Exp; branches; next 1.1.1.4; commitid wDzL46ALjrCZgwKA; 1.1.1.4 date 2019.11.13.22.19.23; author joerg; state dead; branches; next ; commitid QD8YATxuNG34YJKB; 1.1.1.1.4.1 date 2013.11.28.14.14.49; author yamt; state dead; branches; next 1.1.1.1.4.2; commitid WSrDtL5nYAUyiyBx; 1.1.1.1.4.2 date 2014.05.22.16.18.27; author yamt; state Exp; branches; next ; commitid WSrDtL5nYAUyiyBx; 1.1.1.1.8.1 date 2013.11.28.14.14.49; author tls; state dead; branches; next 1.1.1.1.8.2; commitid jTnpym9Qu0o4R1Nx; 1.1.1.1.8.2 date 2014.08.19.23.47.28; author tls; state Exp; branches; next ; commitid jTnpym9Qu0o4R1Nx; 1.1.1.1.12.1 date 2017.03.20.06.52.38; author pgoyette; state Exp; branches; next ; commitid jjw7cAwgyKq7RfKz; 1.1.1.2.12.1 date 2018.07.28.04.33.19; author pgoyette; state Exp; branches; next ; commitid 1UP1xAIUxv1ZgRLA; 1.1.1.2.14.1 date 2019.06.10.21.45.23; author christos; state Exp; branches; next 1.1.1.2.14.2; commitid jtc8rnCzWiEEHGqB; 1.1.1.2.14.2 date 2020.04.13.07.46.34; author martin; state dead; branches; next ; commitid X01YhRUPVUDaec4C; desc @@ 1.1 log @Initial revision @ text @//===--- LayoutOverrideSource.cpp --Override Record Layouts ---------------===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// #include "clang/Frontend/LayoutOverrideSource.h" #include "clang/AST/Decl.h" #include "clang/Basic/CharInfo.h" #include "llvm/Support/raw_ostream.h" #include #include using namespace clang; /// \brief Parse a simple identifier. static std::string parseName(StringRef S) { if (S.empty() || !isIdentifierHead(S[0])) return ""; unsigned Offset = 1; while (Offset < S.size() && isIdentifierBody(S[Offset])) ++Offset; return S.substr(0, Offset).str(); } LayoutOverrideSource::LayoutOverrideSource(StringRef Filename) { std::ifstream Input(Filename.str().c_str()); if (!Input.is_open()) return; // Parse the output of -fdump-record-layouts. std::string CurrentType; Layout CurrentLayout; bool ExpectingType = false; while (Input.good()) { std::string Line; getline(Input, Line); StringRef LineStr(Line); // Determine whether the following line will start a if (LineStr.find("*** Dumping AST Record Layout") != StringRef::npos) { // Flush the last type/layout, if there is one. if (!CurrentType.empty()) Layouts[CurrentType] = CurrentLayout; CurrentLayout = Layout(); ExpectingType = true; continue; } // If we're expecting a type, grab it. if (ExpectingType) { ExpectingType = false; StringRef::size_type Pos; if ((Pos = LineStr.find("struct ")) != StringRef::npos) LineStr = LineStr.substr(Pos + strlen("struct ")); else if ((Pos = LineStr.find("class ")) != StringRef::npos) LineStr = LineStr.substr(Pos + strlen("class ")); else if ((Pos = LineStr.find("union ")) != StringRef::npos) LineStr = LineStr.substr(Pos + strlen("union ")); else continue; // Find the name of the type. CurrentType = parseName(LineStr); CurrentLayout = Layout(); continue; } // Check for the size of the type. StringRef::size_type Pos = LineStr.find(" Size:"); if (Pos != StringRef::npos) { // Skip past the " Size:" prefix. LineStr = LineStr.substr(Pos + strlen(" Size:")); unsigned long long Size = 0; (void)LineStr.getAsInteger(10, Size); CurrentLayout.Size = Size; continue; } // Check for the alignment of the type. Pos = LineStr.find("Alignment:"); if (Pos != StringRef::npos) { // Skip past the "Alignment:" prefix. LineStr = LineStr.substr(Pos + strlen("Alignment:")); unsigned long long Alignment = 0; (void)LineStr.getAsInteger(10, Alignment); CurrentLayout.Align = Alignment; continue; } // Check for the size/alignment of the type. Pos = LineStr.find("sizeof="); if (Pos != StringRef::npos) { /* Skip past the sizeof= prefix. */ LineStr = LineStr.substr(Pos + strlen("sizeof=")); // Parse size. unsigned long long Size = 0; (void)LineStr.getAsInteger(10, Size); CurrentLayout.Size = Size; Pos = LineStr.find("align="); if (Pos != StringRef::npos) { /* Skip past the align= prefix. */ LineStr = LineStr.substr(Pos + strlen("align=")); // Parse alignment. unsigned long long Alignment = 0; (void)LineStr.getAsInteger(10, Alignment); CurrentLayout.Align = Alignment; } continue; } // Check for the field offsets of the type. Pos = LineStr.find("FieldOffsets: ["); if (Pos == StringRef::npos) continue; LineStr = LineStr.substr(Pos + strlen("FieldOffsets: [")); while (!LineStr.empty() && isDigit(LineStr[0])) { // Parse this offset. unsigned Idx = 1; while (Idx < LineStr.size() && isDigit(LineStr[Idx])) ++Idx; unsigned long long Offset = 0; (void)LineStr.substr(0, Idx).getAsInteger(10, Offset); CurrentLayout.FieldOffsets.push_back(Offset); // Skip over this offset, the following comma, and any spaces. LineStr = LineStr.substr(Idx + 1); while (!LineStr.empty() && isWhitespace(LineStr[0])) LineStr = LineStr.substr(1); } } // Flush the last type/layout, if there is one. if (!CurrentType.empty()) Layouts[CurrentType] = CurrentLayout; } bool LayoutOverrideSource::layoutRecordType(const RecordDecl *Record, uint64_t &Size, uint64_t &Alignment, llvm::DenseMap &FieldOffsets, llvm::DenseMap &BaseOffsets, llvm::DenseMap &VirtualBaseOffsets) { // We can't override unnamed declarations. if (!Record->getIdentifier()) return false; // Check whether we have a layout for this record. llvm::StringMap::iterator Known = Layouts.find(Record->getName()); if (Known == Layouts.end()) return false; // Provide field layouts. unsigned NumFields = 0; for (RecordDecl::field_iterator F = Record->field_begin(), FEnd = Record->field_end(); F != FEnd; ++F, ++NumFields) { if (NumFields >= Known->second.FieldOffsets.size()) continue; FieldOffsets[*F] = Known->second.FieldOffsets[NumFields]; } // Wrong number of fields. if (NumFields != Known->second.FieldOffsets.size()) return false; Size = Known->second.Size; Alignment = Known->second.Align; return true; } void LayoutOverrideSource::dump() { raw_ostream &OS = llvm::errs(); for (llvm::StringMap::iterator L = Layouts.begin(), LEnd = Layouts.end(); L != LEnd; ++L) { OS << "Type: blah " << L->first() << '\n'; OS << " Size:" << L->second.Size << '\n'; OS << " Alignment:" << L->second.Align << '\n'; OS << " FieldOffsets: ["; for (unsigned I = 0, N = L->second.FieldOffsets.size(); I != N; ++I) { if (I) OS << ", "; OS << L->second.FieldOffsets[I]; } OS << "]\n"; } } @ 1.1.1.1 log @Import Clang 3.4rc1 r195771. @ text @@ 1.1.1.1.12.1 log @Sync with HEAD @ text @d191 1 a191 1 LLVM_DUMP_METHOD void LayoutOverrideSource::dump() { @ 1.1.1.2 log @Import Clang pre-4.0.0 r291444. @ text @d191 1 a191 1 LLVM_DUMP_METHOD void LayoutOverrideSource::dump() { @ 1.1.1.2.14.1 log @Sync with HEAD @ text @d18 1 a18 1 /// Parse a simple identifier. @ 1.1.1.2.14.2 log @Mostly merge changes from HEAD upto 20200411 @ text @@ 1.1.1.2.12.1 log @Sync with HEAD @ text @d18 1 a18 1 /// Parse a simple identifier. @ 1.1.1.3 log @Import clang r337282 from trunk @ text @d18 1 a18 1 /// Parse a simple identifier. @ 1.1.1.4 log @Mark old LLVM instance as dead. @ text @@ 1.1.1.1.8.1 log @file LayoutOverrideSource.cpp was added on branch tls-maxphys on 2014-08-19 23:47:28 +0000 @ text @d1 208 @ 1.1.1.1.8.2 log @Rebase to HEAD as of a few days ago. @ text @a0 208 //===--- LayoutOverrideSource.cpp --Override Record Layouts ---------------===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// #include "clang/Frontend/LayoutOverrideSource.h" #include "clang/AST/Decl.h" #include "clang/Basic/CharInfo.h" #include "llvm/Support/raw_ostream.h" #include #include using namespace clang; /// \brief Parse a simple identifier. static std::string parseName(StringRef S) { if (S.empty() || !isIdentifierHead(S[0])) return ""; unsigned Offset = 1; while (Offset < S.size() && isIdentifierBody(S[Offset])) ++Offset; return S.substr(0, Offset).str(); } LayoutOverrideSource::LayoutOverrideSource(StringRef Filename) { std::ifstream Input(Filename.str().c_str()); if (!Input.is_open()) return; // Parse the output of -fdump-record-layouts. std::string CurrentType; Layout CurrentLayout; bool ExpectingType = false; while (Input.good()) { std::string Line; getline(Input, Line); StringRef LineStr(Line); // Determine whether the following line will start a if (LineStr.find("*** Dumping AST Record Layout") != StringRef::npos) { // Flush the last type/layout, if there is one. if (!CurrentType.empty()) Layouts[CurrentType] = CurrentLayout; CurrentLayout = Layout(); ExpectingType = true; continue; } // If we're expecting a type, grab it. if (ExpectingType) { ExpectingType = false; StringRef::size_type Pos; if ((Pos = LineStr.find("struct ")) != StringRef::npos) LineStr = LineStr.substr(Pos + strlen("struct ")); else if ((Pos = LineStr.find("class ")) != StringRef::npos) LineStr = LineStr.substr(Pos + strlen("class ")); else if ((Pos = LineStr.find("union ")) != StringRef::npos) LineStr = LineStr.substr(Pos + strlen("union ")); else continue; // Find the name of the type. CurrentType = parseName(LineStr); CurrentLayout = Layout(); continue; } // Check for the size of the type. StringRef::size_type Pos = LineStr.find(" Size:"); if (Pos != StringRef::npos) { // Skip past the " Size:" prefix. LineStr = LineStr.substr(Pos + strlen(" Size:")); unsigned long long Size = 0; (void)LineStr.getAsInteger(10, Size); CurrentLayout.Size = Size; continue; } // Check for the alignment of the type. Pos = LineStr.find("Alignment:"); if (Pos != StringRef::npos) { // Skip past the "Alignment:" prefix. LineStr = LineStr.substr(Pos + strlen("Alignment:")); unsigned long long Alignment = 0; (void)LineStr.getAsInteger(10, Alignment); CurrentLayout.Align = Alignment; continue; } // Check for the size/alignment of the type. Pos = LineStr.find("sizeof="); if (Pos != StringRef::npos) { /* Skip past the sizeof= prefix. */ LineStr = LineStr.substr(Pos + strlen("sizeof=")); // Parse size. unsigned long long Size = 0; (void)LineStr.getAsInteger(10, Size); CurrentLayout.Size = Size; Pos = LineStr.find("align="); if (Pos != StringRef::npos) { /* Skip past the align= prefix. */ LineStr = LineStr.substr(Pos + strlen("align=")); // Parse alignment. unsigned long long Alignment = 0; (void)LineStr.getAsInteger(10, Alignment); CurrentLayout.Align = Alignment; } continue; } // Check for the field offsets of the type. Pos = LineStr.find("FieldOffsets: ["); if (Pos == StringRef::npos) continue; LineStr = LineStr.substr(Pos + strlen("FieldOffsets: [")); while (!LineStr.empty() && isDigit(LineStr[0])) { // Parse this offset. unsigned Idx = 1; while (Idx < LineStr.size() && isDigit(LineStr[Idx])) ++Idx; unsigned long long Offset = 0; (void)LineStr.substr(0, Idx).getAsInteger(10, Offset); CurrentLayout.FieldOffsets.push_back(Offset); // Skip over this offset, the following comma, and any spaces. LineStr = LineStr.substr(Idx + 1); while (!LineStr.empty() && isWhitespace(LineStr[0])) LineStr = LineStr.substr(1); } } // Flush the last type/layout, if there is one. if (!CurrentType.empty()) Layouts[CurrentType] = CurrentLayout; } bool LayoutOverrideSource::layoutRecordType(const RecordDecl *Record, uint64_t &Size, uint64_t &Alignment, llvm::DenseMap &FieldOffsets, llvm::DenseMap &BaseOffsets, llvm::DenseMap &VirtualBaseOffsets) { // We can't override unnamed declarations. if (!Record->getIdentifier()) return false; // Check whether we have a layout for this record. llvm::StringMap::iterator Known = Layouts.find(Record->getName()); if (Known == Layouts.end()) return false; // Provide field layouts. unsigned NumFields = 0; for (RecordDecl::field_iterator F = Record->field_begin(), FEnd = Record->field_end(); F != FEnd; ++F, ++NumFields) { if (NumFields >= Known->second.FieldOffsets.size()) continue; FieldOffsets[*F] = Known->second.FieldOffsets[NumFields]; } // Wrong number of fields. if (NumFields != Known->second.FieldOffsets.size()) return false; Size = Known->second.Size; Alignment = Known->second.Align; return true; } void LayoutOverrideSource::dump() { raw_ostream &OS = llvm::errs(); for (llvm::StringMap::iterator L = Layouts.begin(), LEnd = Layouts.end(); L != LEnd; ++L) { OS << "Type: blah " << L->first() << '\n'; OS << " Size:" << L->second.Size << '\n'; OS << " Alignment:" << L->second.Align << '\n'; OS << " FieldOffsets: ["; for (unsigned I = 0, N = L->second.FieldOffsets.size(); I != N; ++I) { if (I) OS << ", "; OS << L->second.FieldOffsets[I]; } OS << "]\n"; } } @ 1.1.1.1.4.1 log @file LayoutOverrideSource.cpp was added on branch yamt-pagecache on 2014-05-22 16:18:27 +0000 @ text @d1 208 @ 1.1.1.1.4.2 log @sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments") @ text @a0 208 //===--- LayoutOverrideSource.cpp --Override Record Layouts ---------------===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// #include "clang/Frontend/LayoutOverrideSource.h" #include "clang/AST/Decl.h" #include "clang/Basic/CharInfo.h" #include "llvm/Support/raw_ostream.h" #include #include using namespace clang; /// \brief Parse a simple identifier. static std::string parseName(StringRef S) { if (S.empty() || !isIdentifierHead(S[0])) return ""; unsigned Offset = 1; while (Offset < S.size() && isIdentifierBody(S[Offset])) ++Offset; return S.substr(0, Offset).str(); } LayoutOverrideSource::LayoutOverrideSource(StringRef Filename) { std::ifstream Input(Filename.str().c_str()); if (!Input.is_open()) return; // Parse the output of -fdump-record-layouts. std::string CurrentType; Layout CurrentLayout; bool ExpectingType = false; while (Input.good()) { std::string Line; getline(Input, Line); StringRef LineStr(Line); // Determine whether the following line will start a if (LineStr.find("*** Dumping AST Record Layout") != StringRef::npos) { // Flush the last type/layout, if there is one. if (!CurrentType.empty()) Layouts[CurrentType] = CurrentLayout; CurrentLayout = Layout(); ExpectingType = true; continue; } // If we're expecting a type, grab it. if (ExpectingType) { ExpectingType = false; StringRef::size_type Pos; if ((Pos = LineStr.find("struct ")) != StringRef::npos) LineStr = LineStr.substr(Pos + strlen("struct ")); else if ((Pos = LineStr.find("class ")) != StringRef::npos) LineStr = LineStr.substr(Pos + strlen("class ")); else if ((Pos = LineStr.find("union ")) != StringRef::npos) LineStr = LineStr.substr(Pos + strlen("union ")); else continue; // Find the name of the type. CurrentType = parseName(LineStr); CurrentLayout = Layout(); continue; } // Check for the size of the type. StringRef::size_type Pos = LineStr.find(" Size:"); if (Pos != StringRef::npos) { // Skip past the " Size:" prefix. LineStr = LineStr.substr(Pos + strlen(" Size:")); unsigned long long Size = 0; (void)LineStr.getAsInteger(10, Size); CurrentLayout.Size = Size; continue; } // Check for the alignment of the type. Pos = LineStr.find("Alignment:"); if (Pos != StringRef::npos) { // Skip past the "Alignment:" prefix. LineStr = LineStr.substr(Pos + strlen("Alignment:")); unsigned long long Alignment = 0; (void)LineStr.getAsInteger(10, Alignment); CurrentLayout.Align = Alignment; continue; } // Check for the size/alignment of the type. Pos = LineStr.find("sizeof="); if (Pos != StringRef::npos) { /* Skip past the sizeof= prefix. */ LineStr = LineStr.substr(Pos + strlen("sizeof=")); // Parse size. unsigned long long Size = 0; (void)LineStr.getAsInteger(10, Size); CurrentLayout.Size = Size; Pos = LineStr.find("align="); if (Pos != StringRef::npos) { /* Skip past the align= prefix. */ LineStr = LineStr.substr(Pos + strlen("align=")); // Parse alignment. unsigned long long Alignment = 0; (void)LineStr.getAsInteger(10, Alignment); CurrentLayout.Align = Alignment; } continue; } // Check for the field offsets of the type. Pos = LineStr.find("FieldOffsets: ["); if (Pos == StringRef::npos) continue; LineStr = LineStr.substr(Pos + strlen("FieldOffsets: [")); while (!LineStr.empty() && isDigit(LineStr[0])) { // Parse this offset. unsigned Idx = 1; while (Idx < LineStr.size() && isDigit(LineStr[Idx])) ++Idx; unsigned long long Offset = 0; (void)LineStr.substr(0, Idx).getAsInteger(10, Offset); CurrentLayout.FieldOffsets.push_back(Offset); // Skip over this offset, the following comma, and any spaces. LineStr = LineStr.substr(Idx + 1); while (!LineStr.empty() && isWhitespace(LineStr[0])) LineStr = LineStr.substr(1); } } // Flush the last type/layout, if there is one. if (!CurrentType.empty()) Layouts[CurrentType] = CurrentLayout; } bool LayoutOverrideSource::layoutRecordType(const RecordDecl *Record, uint64_t &Size, uint64_t &Alignment, llvm::DenseMap &FieldOffsets, llvm::DenseMap &BaseOffsets, llvm::DenseMap &VirtualBaseOffsets) { // We can't override unnamed declarations. if (!Record->getIdentifier()) return false; // Check whether we have a layout for this record. llvm::StringMap::iterator Known = Layouts.find(Record->getName()); if (Known == Layouts.end()) return false; // Provide field layouts. unsigned NumFields = 0; for (RecordDecl::field_iterator F = Record->field_begin(), FEnd = Record->field_end(); F != FEnd; ++F, ++NumFields) { if (NumFields >= Known->second.FieldOffsets.size()) continue; FieldOffsets[*F] = Known->second.FieldOffsets[NumFields]; } // Wrong number of fields. if (NumFields != Known->second.FieldOffsets.size()) return false; Size = Known->second.Size; Alignment = Known->second.Align; return true; } void LayoutOverrideSource::dump() { raw_ostream &OS = llvm::errs(); for (llvm::StringMap::iterator L = Layouts.begin(), LEnd = Layouts.end(); L != LEnd; ++L) { OS << "Type: blah " << L->first() << '\n'; OS << " Size:" << L->second.Size << '\n'; OS << " Alignment:" << L->second.Align << '\n'; OS << " FieldOffsets: ["; for (unsigned I = 0, N = L->second.FieldOffsets.size(); I != N; ++I) { if (I) OS << ", "; OS << L->second.FieldOffsets[I]; } OS << "]\n"; } } @