From 4344b1ef9b3721a5ebc2e024f753772a1e4ddd92 Mon Sep 17 00:00:00 2001 From: "Michael J. Spencer" Date: Fri, 7 Oct 2011 19:25:32 +0000 Subject: [PATCH] Change relocation API to be per section. This time without breaking GCC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141385 91177308-0d34-0410-b5e6-96231b3b80d8 --- include/llvm-c/Object.h | 8 +- include/llvm/Object/COFF.h | 11 +- include/llvm/Object/ObjectFile.h | 119 ++++++--- lib/Object/COFFObjectFile.cpp | 158 ++++++++---- lib/Object/ELFObjectFile.cpp | 380 ++++++++++++++++++++++------ lib/Object/MachOObjectFile.cpp | 82 +++--- lib/Object/Object.cpp | 4 +- tools/llvm-objdump/llvm-objdump.cpp | 4 +- 8 files changed, 562 insertions(+), 204 deletions(-) diff --git a/include/llvm-c/Object.h b/include/llvm-c/Object.h index 6e72b594664..7b1cf717f77 100644 --- a/include/llvm-c/Object.h +++ b/include/llvm-c/Object.h @@ -59,14 +59,14 @@ namespace llvm { return reinterpret_cast(const_cast(OF)); } - inline ObjectFile::section_iterator *unwrap(LLVMSectionIteratorRef SI) { - return reinterpret_cast(SI); + inline section_iterator *unwrap(LLVMSectionIteratorRef SI) { + return reinterpret_cast(SI); } inline LLVMSectionIteratorRef - wrap(const ObjectFile::section_iterator *SI) { + wrap(const section_iterator *SI) { return reinterpret_cast - (const_cast(SI)); + (const_cast(SI)); } } } diff --git a/include/llvm/Object/COFF.h b/include/llvm/Object/COFF.h index 6a91008a401..9d83e287e48 100644 --- a/include/llvm/Object/COFF.h +++ b/include/llvm/Object/COFF.h @@ -84,6 +84,8 @@ private: error_code getSection(int32_t index, const coff_section *&Res) const; error_code getString(uint32_t offset, StringRef &Res) const; + error_code getSymbol(uint32_t index, + const coff_symbol *&Res) const; const coff_symbol *toSymb(DataRefImpl Symb) const; const coff_section *toSec(DataRefImpl Sec) const; @@ -110,6 +112,8 @@ protected: virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const; virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb, bool &Result) const; + virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const; + virtual relocation_iterator getSectionRelEnd(DataRefImpl Sec) const; virtual error_code getRelocationNext(DataRefImpl Rel, RelocationRef &Res) const; @@ -119,16 +123,19 @@ protected: SymbolRef &Res) const; virtual error_code getRelocationType(DataRefImpl Rel, uint32_t &Res) const; + virtual error_code getRelocationTypeName(DataRefImpl Rel, + SmallVectorImpl &Result) const; virtual error_code getRelocationAdditionalInfo(DataRefImpl Rel, int64_t &Res) const; + virtual error_code getRelocationValueString(DataRefImpl Rel, + SmallVectorImpl &Result) const; + public: COFFObjectFile(MemoryBuffer *Object, error_code &ec); virtual symbol_iterator begin_symbols() const; virtual symbol_iterator end_symbols() const; virtual section_iterator begin_sections() const; virtual section_iterator end_sections() const; - virtual relocation_iterator begin_relocations() const; - virtual relocation_iterator end_relocations() const; virtual uint8_t getBytesInAddress() const; virtual StringRef getFileFormatName() const; diff --git a/include/llvm/Object/ObjectFile.h b/include/llvm/Object/ObjectFile.h index d648f355116..1390a7ed1e0 100644 --- a/include/llvm/Object/ObjectFile.h +++ b/include/llvm/Object/ObjectFile.h @@ -27,12 +27,51 @@ namespace object { class ObjectFile; union DataRefImpl { + struct { + // ELF needs this for relocations. This entire union should probably be a + // char[max(8, sizeof(uintptr_t))] and require the impl to cast. + uint16_t a, b; + uint32_t c; + } w; struct { uint32_t a, b; } d; uintptr_t p; }; +template +class content_iterator { + content_type Current; +public: + content_iterator(content_type symb) + : Current(symb) {} + + const content_type* operator->() const { + return &Current; + } + + const content_type &operator*() const { + return Current; + } + + bool operator==(const content_iterator &other) const { + return Current == other.Current; + } + + bool operator!=(const content_iterator &other) const { + return !(*this == other); + } + + content_iterator& increment(error_code &err) { + content_type next; + if (error_code ec = Current.getNext(next)) + err = ec; + else + Current = next; + return *this; + } +}; + static bool operator ==(const DataRefImpl &a, const DataRefImpl &b) { // Check bitwise identical. This is the only legal way to compare a union w/o // knowing which member is in use. @@ -82,6 +121,7 @@ public: /// such as library functions error_code isGlobal(bool &Result) const; }; +typedef content_iterator symbol_iterator; /// RelocationRef - This is a value type class that represents a single /// relocation in the list of relocations in the object file. @@ -103,8 +143,20 @@ public: error_code getAddress(uint64_t &Result) const; error_code getSymbol(SymbolRef &Result) const; error_code getType(uint32_t &Result) const; + + /// @brief Get a string that represents the type of this relocation. + /// + /// This is for display purposes only. + error_code getTypeName(SmallVectorImpl &Result) const; error_code getAdditionalInfo(int64_t &Result) const; + + /// @brief Get a string that represents the calculation of the value of this + /// relocation. + /// + /// This is for display purposes only. + error_code getValueString(SmallVectorImpl &Result) const; }; +typedef content_iterator relocation_iterator; /// SectionRef - This is a value type class that represents a single section in /// the list of sections in the object file. @@ -135,7 +187,11 @@ public: error_code isBSS(bool &Result) const; error_code containsSymbol(SymbolRef S, bool &Result) const; + + relocation_iterator begin_relocations() const; + relocation_iterator end_relocations() const; }; +typedef content_iterator section_iterator; const uint64_t UnknownAddressOrSize = ~0ULL; @@ -185,6 +241,8 @@ protected: virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const = 0; virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb, bool &Result) const = 0; + virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const = 0; + virtual relocation_iterator getSectionRelEnd(DataRefImpl Sec) const = 0; // Same as above for RelocationRef. @@ -197,46 +255,14 @@ protected: SymbolRef &Res) const = 0; virtual error_code getRelocationType(DataRefImpl Rel, uint32_t &Res) const = 0; + virtual error_code getRelocationTypeName(DataRefImpl Rel, + SmallVectorImpl &Result) const = 0; virtual error_code getRelocationAdditionalInfo(DataRefImpl Rel, int64_t &Res) const = 0; + virtual error_code getRelocationValueString(DataRefImpl Rel, + SmallVectorImpl &Result) const = 0; public: - template - class content_iterator { - content_type Current; - public: - content_iterator(content_type symb) - : Current(symb) {} - - const content_type* operator->() const { - return &Current; - } - - const content_type &operator*() const { - return Current; - } - - bool operator==(const content_iterator &other) const { - return Current == other.Current; - } - - bool operator!=(const content_iterator &other) const { - return !(*this == other); - } - - content_iterator& increment(error_code &err) { - content_type next; - if (error_code ec = Current.getNext(next)) - err = ec; - else - Current = next; - return *this; - } - }; - - typedef content_iterator symbol_iterator; - typedef content_iterator section_iterator; - typedef content_iterator relocation_iterator; virtual symbol_iterator begin_symbols() const = 0; virtual symbol_iterator end_symbols() const = 0; @@ -244,9 +270,6 @@ public: virtual section_iterator begin_sections() const = 0; virtual section_iterator end_sections() const = 0; - virtual relocation_iterator begin_relocations() const = 0; - virtual relocation_iterator end_relocations() const = 0; - /// @brief The number of bytes used to represent an address in this object /// file format. virtual uint8_t getBytesInAddress() const = 0; @@ -366,6 +389,14 @@ inline error_code SectionRef::containsSymbol(SymbolRef S, bool &Result) const { Result); } +inline relocation_iterator SectionRef::begin_relocations() const { + return OwningObject->getSectionRelBegin(SectionPimpl); +} + +inline relocation_iterator SectionRef::end_relocations() const { + return OwningObject->getSectionRelEnd(SectionPimpl); +} + /// RelocationRef inline RelocationRef::RelocationRef(DataRefImpl RelocationP, @@ -393,10 +424,20 @@ inline error_code RelocationRef::getType(uint32_t &Result) const { return OwningObject->getRelocationType(RelocationPimpl, Result); } +inline error_code RelocationRef::getTypeName(SmallVectorImpl &Result) + const { + return OwningObject->getRelocationTypeName(RelocationPimpl, Result); +} + inline error_code RelocationRef::getAdditionalInfo(int64_t &Result) const { return OwningObject->getRelocationAdditionalInfo(RelocationPimpl, Result); } +inline error_code RelocationRef::getValueString(SmallVectorImpl &Result) + const { + return OwningObject->getRelocationValueString(RelocationPimpl, Result); +} + } // end namespace object } // end namespace llvm diff --git a/lib/Object/COFFObjectFile.cpp b/lib/Object/COFFObjectFile.cpp index 10afad832e4..ea9f44bab4d 100644 --- a/lib/Object/COFFObjectFile.cpp +++ b/lib/Object/COFFObjectFile.cpp @@ -12,6 +12,7 @@ //===----------------------------------------------------------------------===// #include "llvm/Object/COFF.h" +#include "llvm/ADT/SmallString.h" #include "llvm/ADT/StringSwitch.h" #include "llvm/ADT/Triple.h" @@ -364,6 +365,33 @@ error_code COFFObjectFile::sectionContainsSymbol(DataRefImpl Sec, return object_error::success; } +relocation_iterator COFFObjectFile::getSectionRelBegin(DataRefImpl Sec) const { + const coff_section *sec = toSec(Sec); + DataRefImpl ret; + std::memset(&ret, 0, sizeof(ret)); + if (sec->NumberOfRelocations == 0) + ret.p = 0; + else + ret.p = reinterpret_cast(base() + sec->PointerToRelocations); + + return relocation_iterator(RelocationRef(ret, this)); +} + +relocation_iterator COFFObjectFile::getSectionRelEnd(DataRefImpl Sec) const { + const coff_section *sec = toSec(Sec); + DataRefImpl ret; + std::memset(&ret, 0, sizeof(ret)); + if (sec->NumberOfRelocations == 0) + ret.p = 0; + else + ret.p = reinterpret_cast( + reinterpret_cast( + base() + sec->PointerToRelocations) + + sec->NumberOfRelocations); + + return relocation_iterator(RelocationRef(ret, this)); +} + COFFObjectFile::COFFObjectFile(MemoryBuffer *Object, error_code &ec) : ObjectFile(Binary::isCOFF, Object, ec) { // Check that we at least have enough room for a header. @@ -427,14 +455,14 @@ COFFObjectFile::COFFObjectFile(MemoryBuffer *Object, error_code &ec) ec = object_error::success; } -ObjectFile::symbol_iterator COFFObjectFile::begin_symbols() const { +symbol_iterator COFFObjectFile::begin_symbols() const { DataRefImpl ret; std::memset(&ret, 0, sizeof(DataRefImpl)); ret.p = reinterpret_cast(SymbolTable); return symbol_iterator(SymbolRef(ret, this)); } -ObjectFile::symbol_iterator COFFObjectFile::end_symbols() const { +symbol_iterator COFFObjectFile::end_symbols() const { // The symbol table ends where the string table begins. DataRefImpl ret; std::memset(&ret, 0, sizeof(DataRefImpl)); @@ -442,14 +470,14 @@ ObjectFile::symbol_iterator COFFObjectFile::end_symbols() const { return symbol_iterator(SymbolRef(ret, this)); } -ObjectFile::section_iterator COFFObjectFile::begin_sections() const { +section_iterator COFFObjectFile::begin_sections() const { DataRefImpl ret; std::memset(&ret, 0, sizeof(DataRefImpl)); ret.p = reinterpret_cast(SectionTable); return section_iterator(SectionRef(ret, this)); } -ObjectFile::section_iterator COFFObjectFile::end_sections() const { +section_iterator COFFObjectFile::end_sections() const { DataRefImpl ret; std::memset(&ret, 0, sizeof(DataRefImpl)); ret.p = reinterpret_cast(SectionTable + Header->NumberOfSections); @@ -508,42 +536,28 @@ error_code COFFObjectFile::getString(uint32_t offset, return object_error::success; } +error_code COFFObjectFile::getSymbol(uint32_t index, + const coff_symbol *&Result) const { + if (index > 0 && index < Header->NumberOfSymbols) + Result = SymbolTable + index; + else + return object_error::parse_failed; + return object_error::success; +} + const coff_relocation *COFFObjectFile::toRel(DataRefImpl Rel) const { - assert(Rel.d.b < Header->NumberOfSections && "Section index out of range!"); - const coff_section *Sect = NULL; - getSection(Rel.d.b, Sect); - assert(Rel.d.a < Sect->NumberOfRelocations && "Relocation index out of range!"); - return - reinterpret_cast(base() + - Sect->PointerToRelocations) + - Rel.d.a; + return reinterpret_cast(Rel.p); } error_code COFFObjectFile::getRelocationNext(DataRefImpl Rel, RelocationRef &Res) const { - const coff_section *Sect = NULL; - if (error_code ec = getSection(Rel.d.b, Sect)) - return ec; - if (++Rel.d.a >= Sect->NumberOfRelocations) { - Rel.d.a = 0; - while (++Rel.d.b < Header->NumberOfSections) { - const coff_section *Sect = NULL; - getSection(Rel.d.b, Sect); - if (Sect->NumberOfRelocations > 0) - break; - } - } + Rel.p = reinterpret_cast( + reinterpret_cast(Rel.p) + 1); Res = RelocationRef(Rel, this); return object_error::success; } error_code COFFObjectFile::getRelocationAddress(DataRefImpl Rel, uint64_t &Res) const { - const coff_section *Sect = NULL; - if (error_code ec = getSection(Rel.d.b, Sect)) - return ec; - const coff_relocation* R = toRel(Rel); - Res = reinterpret_cast(base() + - Sect->PointerToRawData + - R->VirtualAddress); + Res = toRel(Rel)->VirtualAddress; return object_error::success; } error_code COFFObjectFile::getRelocationSymbol(DataRefImpl Rel, @@ -560,25 +574,83 @@ error_code COFFObjectFile::getRelocationType(DataRefImpl Rel, Res = R->Type; return object_error::success; } + +#define LLVM_COFF_SWITCH_RELOC_TYPE_NAME(enum) \ + case COFF::enum: res = #enum; break; + +error_code COFFObjectFile::getRelocationTypeName(DataRefImpl Rel, + SmallVectorImpl &Result) const { + const coff_relocation *reloc = toRel(Rel); + StringRef res; + switch (Header->Machine) { + case COFF::IMAGE_FILE_MACHINE_AMD64: + switch (reloc->Type) { + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_ABSOLUTE); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_ADDR64); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_ADDR32); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_ADDR32NB); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32_1); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32_2); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32_3); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32_4); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32_5); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SECTION); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SECREL); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SECREL7); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_TOKEN); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SREL32); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_PAIR); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SSPAN32); + default: + res = "Unknown"; + } + break; + case COFF::IMAGE_FILE_MACHINE_I386: + switch (reloc->Type) { + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_ABSOLUTE); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_DIR16); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_REL16); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_DIR32); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_DIR32NB); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_SEG12); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_SECTION); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_SECREL); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_TOKEN); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_SECREL7); + LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_REL32); + default: + res = "Unknown"; + } + break; + default: + res = "Unknown"; + } + Result.append(res.begin(), res.end()); + return object_error::success; +} + +#undef LLVM_COFF_SWITCH_RELOC_TYPE_NAME + error_code COFFObjectFile::getRelocationAdditionalInfo(DataRefImpl Rel, int64_t &Res) const { Res = 0; return object_error::success; } -ObjectFile::relocation_iterator COFFObjectFile::begin_relocations() const { - DataRefImpl ret; - ret.d.a = 0; - ret.d.b = 1; - return relocation_iterator(RelocationRef(ret, this)); -} -ObjectFile::relocation_iterator COFFObjectFile::end_relocations() const { - DataRefImpl ret; - ret.d.a = 0; - ret.d.b = Header->NumberOfSections; - return relocation_iterator(RelocationRef(ret, this)); +error_code COFFObjectFile::getRelocationValueString(DataRefImpl Rel, + SmallVectorImpl &Result) const { + const coff_relocation *reloc = toRel(Rel); + const coff_symbol *symb; + if (error_code ec = getSymbol(reloc->SymbolTableIndex, symb)) return ec; + DataRefImpl sym; + ::memset(&sym, 0, sizeof(sym)); + sym.p = reinterpret_cast(symb); + StringRef symname; + if (error_code ec = getSymbolName(sym, symname)) return ec; + Result.append(symname.begin(), symname.end()); + return object_error::success; } - namespace llvm { ObjectFile *ObjectFile::createCOFFObjectFile(MemoryBuffer *Object) { diff --git a/lib/Object/ELFObjectFile.cpp b/lib/Object/ELFObjectFile.cpp index 3a151d3154f..e427bedb982 100644 --- a/lib/Object/ELFObjectFile.cpp +++ b/lib/Object/ELFObjectFile.cpp @@ -20,6 +20,8 @@ #include "llvm/Support/Endian.h" #include "llvm/Support/ErrorHandling.h" #include "llvm/Support/MemoryBuffer.h" +#include "llvm/Support/raw_ostream.h" +#include #include #include @@ -286,6 +288,7 @@ class ELFObjectFile : public ObjectFile { typedef SmallVector Sections_t; typedef DenseMap IndexMap_t; + typedef DenseMap > RelocMap_t; const Elf_Ehdr *Header; const Elf_Shdr *SectionHeaderTable; @@ -293,12 +296,22 @@ class ELFObjectFile : public ObjectFile { const Elf_Shdr *dot_strtab_sec; // Symbol header string table. Sections_t SymbolTableSections; IndexMap_t SymbolTableSectionsIndexMap; - Sections_t RelocationTableSections; + + /// @brief Map sections to an array of relocation sections that reference + /// them sorted by section index. + RelocMap_t SectionRelocMap; + + /// @brief Get the relocation section that contains \a Rel. + const Elf_Shdr *getRelSection(DataRefImpl Rel) const { + return getSection(Rel.w.b); + } void validateSymbol(DataRefImpl Symb) const; bool isRelocationHasAddend(DataRefImpl Rel) const; template - const T *getEntry(DataRefImpl Entry, Sections_t Sections) const; + const T *getEntry(uint16_t Section, uint32_t Entry) const; + template + const T *getEntry(const Elf_Shdr *Section, uint32_t Entry) const; const Elf_Sym *getSymbol(DataRefImpl Symb) const; const Elf_Shdr *getSection(DataRefImpl index) const; const Elf_Shdr *getSection(uint16_t index) const; @@ -306,6 +319,7 @@ class ELFObjectFile : public ObjectFile { const Elf_Rela *getRela(DataRefImpl Rela) const; const char *getString(uint16_t section, uint32_t offset) const; const char *getString(const Elf_Shdr *section, uint32_t offset) const; + error_code getSymbolName(const Elf_Sym *Symb, StringRef &Res) const; protected: virtual error_code getSymbolNext(DataRefImpl Symb, SymbolRef &Res) const; @@ -328,6 +342,8 @@ protected: virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const; virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb, bool &Result) const; + virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const; + virtual relocation_iterator getSectionRelEnd(DataRefImpl Sec) const; virtual error_code getRelocationNext(DataRefImpl Rel, RelocationRef &Res) const; @@ -337,8 +353,12 @@ protected: SymbolRef &Res) const; virtual error_code getRelocationType(DataRefImpl Rel, uint32_t &Res) const; + virtual error_code getRelocationTypeName(DataRefImpl Rel, + SmallVectorImpl &Result) const; virtual error_code getRelocationAdditionalInfo(DataRefImpl Rel, int64_t &Res) const; + virtual error_code getRelocationValueString(DataRefImpl Rel, + SmallVectorImpl &Result) const; public: ELFObjectFile(MemoryBuffer *Object, error_code &ec); @@ -346,8 +366,6 @@ public: virtual symbol_iterator end_symbols() const; virtual section_iterator begin_sections() const; virtual section_iterator end_sections() const; - virtual relocation_iterator begin_relocations() const; - virtual relocation_iterator end_relocations() const; virtual uint8_t getBytesInAddress() const; virtual StringRef getFileFormatName() const; @@ -404,18 +422,7 @@ error_code ELFObjectFile StringRef &Result) const { validateSymbol(Symb); const Elf_Sym *symb = getSymbol(Symb); - if (symb->st_name == 0) { - const Elf_Shdr *section = getSection(symb->st_shndx); - if (!section) - Result = ""; - else - Result = getString(dot_shstrtab_sec, section->sh_name); - return object_error::success; - } - - // Use the default symbol table name section. - Result = getString(dot_strtab_sec, symb->st_name); - return object_error::success; + return getSymbolName(symb, Result); } template @@ -712,24 +719,65 @@ error_code ELFObjectFile return object_error::success; } +template +relocation_iterator ELFObjectFile + ::getSectionRelBegin(DataRefImpl Sec) const { + DataRefImpl RelData; + memset(&RelData, 0, sizeof(RelData)); + const Elf_Shdr *sec = reinterpret_cast(Sec.p); + typename RelocMap_t::const_iterator ittr = SectionRelocMap.find(sec); + if (sec != 0 && ittr != SectionRelocMap.end()) { + RelData.w.a = getSection(ittr->second[0])->sh_link; + RelData.w.b = ittr->second[0]; + RelData.w.c = 0; + } + return relocation_iterator(RelocationRef(RelData, this)); +} + +template +relocation_iterator ELFObjectFile + ::getSectionRelEnd(DataRefImpl Sec) const { + DataRefImpl RelData; + memset(&RelData, 0, sizeof(RelData)); + const Elf_Shdr *sec = reinterpret_cast(Sec.p); + typename RelocMap_t::const_iterator ittr = SectionRelocMap.find(sec); + if (sec != 0 && ittr != SectionRelocMap.end()) { + // Get the index of the last relocation section for this section. + std::size_t relocsecindex = ittr->second[ittr->second.size() - 1]; + const Elf_Shdr *relocsec = getSection(relocsecindex); + RelData.w.a = relocsec->sh_link; + RelData.w.b = relocsecindex; + RelData.w.c = relocsec->sh_size / relocsec->sh_entsize; + } + return relocation_iterator(RelocationRef(RelData, this)); +} + // Relocations template error_code ELFObjectFile ::getRelocationNext(DataRefImpl Rel, RelocationRef &Result) const { - const Elf_Shdr *RelocationTableSection = RelocationTableSections[Rel.d.b]; - - // Check to see if we are at the end of this relocation table. - if (++Rel.d.a >= RelocationTableSection->getEntityCount()) { - // We are at the end. If there are other relocation tables, jump to them. - Rel.d.a = 0; - // Otherwise return the terminator. - if (++Rel.d.b >= SymbolTableSections.size()) { - Rel.d.a = std::numeric_limits::max(); - Rel.d.b = std::numeric_limits::max(); + ++Rel.w.c; + const Elf_Shdr *relocsec = getSection(Rel.w.b); + if (Rel.w.c >= (relocsec->sh_size / relocsec->sh_entsize)) { + // We have reached the end of the relocations for this section. See if there + // is another relocation section. + typename RelocMap_t::mapped_type &relocseclist = + SectionRelocMap.lookup(getSection(Rel.w.a)); + + // Do a binary search for the current reloc section index (which must be + // present). Then get the next one. + typename RelocMap_t::mapped_type::const_iterator loc = + std::lower_bound(relocseclist.begin(), relocseclist.end(), Rel.w.b); + ++loc; + + // If there is no next one, don't do anything. The ++Rel.w.c above sets Rel + // to the end iterator. + if (loc != relocseclist.end()) { + Rel.w.b = *loc; + Rel.w.a = 0; } } - Result = RelocationRef(Rel, this); return object_error::success; } @@ -739,7 +787,7 @@ error_code ELFObjectFile ::getRelocationSymbol(DataRefImpl Rel, SymbolRef &Result) const { uint32_t symbolIdx; - const Elf_Shdr *sec = RelocationTableSections[Rel.d.b]; + const Elf_Shdr *sec = getSection(Rel.w.b); switch (sec->sh_type) { default : report_fatal_error("Invalid section type in Rel!"); @@ -767,7 +815,7 @@ error_code ELFObjectFile ::getRelocationAddress(DataRefImpl Rel, uint64_t &Result) const { uint64_t offset; - const Elf_Shdr *sec = RelocationTableSections[Rel.d.b]; + const Elf_Shdr *sec = getSection(Rel.w.b); switch (sec->sh_type) { default : report_fatal_error("Invalid section type in Rel!"); @@ -781,8 +829,7 @@ error_code ELFObjectFile } } - const Elf_Shdr *secAddr = getSection(sec->sh_info); - Result = offset + reinterpret_cast(base() + secAddr->sh_offset); + Result = offset; return object_error::success; } @@ -790,7 +837,7 @@ template error_code ELFObjectFile ::getRelocationType(DataRefImpl Rel, uint32_t &Result) const { - const Elf_Shdr *sec = RelocationTableSections[Rel.d.b]; + const Elf_Shdr *sec = getSection(Rel.w.b); switch (sec->sh_type) { default : report_fatal_error("Invalid section type in Rel!"); @@ -806,11 +853,127 @@ error_code ELFObjectFile return object_error::success; } +#define LLVM_ELF_SWITCH_RELOC_TYPE_NAME(enum) \ + case ELF::enum: res = #enum; break; + +template +error_code ELFObjectFile + ::getRelocationTypeName(DataRefImpl Rel, + SmallVectorImpl &Result) const { + const Elf_Shdr *sec = getSection(Rel.w.b); + uint8_t type; + StringRef res; + switch (sec->sh_type) { + default : + return object_error::parse_failed; + case ELF::SHT_REL : { + type = getRel(Rel)->getType(); + break; + } + case ELF::SHT_RELA : { + type = getRela(Rel)->getType(); + break; + } + } + switch (Header->e_machine) { + case ELF::EM_X86_64: + switch (type) { + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_NONE); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_64); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC32); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOT32); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PLT32); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_COPY); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GLOB_DAT); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_JUMP_SLOT); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_RELATIVE); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPCREL); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_32); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_32S); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_16); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC16); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_8); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC8); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPMOD64); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPOFF64); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TPOFF64); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSGD); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSLD); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPOFF32); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTTPOFF); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TPOFF32); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC64); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTOFF64); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC32); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_SIZE32); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_SIZE64); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC32_TLSDESC); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSDESC_CALL); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSDESC); + default: + res = "Unknown"; + } + break; + case ELF::EM_386: + switch (type) { + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_NONE); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_32); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC32); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOT32); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PLT32); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_COPY); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GLOB_DAT); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_JUMP_SLOT); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_RELATIVE); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOTOFF); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOTPC); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_32PLT); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_TPOFF); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_IE); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GOTIE); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LE); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_16); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC16); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_8); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC8); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_32); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_PUSH); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_CALL); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_POP); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_32); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_PUSH); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_CALL); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_POP); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDO_32); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_IE_32); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LE_32); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DTPMOD32); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DTPOFF32); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_TPOFF32); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GOTDESC); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DESC_CALL); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DESC); + LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_IRELATIVE); + default: + res = "Unknown"; + } + break; + default: + res = "Unknown"; + } + Result.append(res.begin(), res.end()); + return object_error::success; +} + +#undef LLVM_ELF_SWITCH_RELOC_TYPE_NAME + template error_code ELFObjectFile ::getRelocationAdditionalInfo(DataRefImpl Rel, int64_t &Result) const { - const Elf_Shdr *sec = RelocationTableSections[Rel.d.b]; + const Elf_Shdr *sec = getSection(Rel.w.b); switch (sec->sh_type) { default : report_fatal_error("Invalid section type in Rel!"); @@ -825,7 +988,60 @@ error_code ELFObjectFile } } - +template +error_code ELFObjectFile + ::getRelocationValueString(DataRefImpl Rel, + SmallVectorImpl &Result) const { + const Elf_Shdr *sec = getSection(Rel.w.b); + uint8_t type; + StringRef res; + int64_t addend = 0; + uint16_t symbol_index = 0; + switch (sec->sh_type) { + default : + return object_error::parse_failed; + case ELF::SHT_REL : { + type = getRel(Rel)->getType(); + symbol_index = getRel(Rel)->getSymbol(); + // TODO: Read implicit addend from section data. + break; + } + case ELF::SHT_RELA : { + type = getRela(Rel)->getType(); + symbol_index = getRela(Rel)->getSymbol(); + addend = getRela(Rel)->r_addend; + break; + } + } + const Elf_Sym *symb = getEntry(sec->sh_link, symbol_index); + StringRef symname; + if (error_code ec = getSymbolName(symb, symname)) + return ec; + switch (Header->e_machine) { + case ELF::EM_X86_64: + switch (type) { + case ELF::R_X86_64_32S: + res = symname; + break; + case ELF::R_X86_64_PC32: { + std::string fmtbuf; + raw_string_ostream fmt(fmtbuf); + fmt << symname << (addend < 0 ? "" : "+") << addend << "-P"; + fmt.flush(); + Result.append(fmtbuf.begin(), fmtbuf.end()); + } + break; + default: + res = "Unknown"; + } + break; + default: + res = "Unknown"; + } + if (Result.empty()) + Result.append(res.begin(), res.end()); + return object_error::success; +} template ELFObjectFile::ELFObjectFile(MemoryBuffer *Object @@ -849,19 +1065,24 @@ ELFObjectFile::ELFObjectFile(MemoryBuffer *Object // To find the symbol tables we walk the section table to find SHT_STMTAB. - const Elf_Shdr* sh = - reinterpret_cast(SectionHeaderTable); + const Elf_Shdr* sh = reinterpret_cast(SectionHeaderTable); for (unsigned i = 0; i < Header->e_shnum; ++i) { if (sh->sh_type == ELF::SHT_SYMTAB) { SymbolTableSectionsIndexMap[i] = SymbolTableSections.size(); SymbolTableSections.push_back(sh); } if (sh->sh_type == ELF::SHT_REL || sh->sh_type == ELF::SHT_RELA) { - RelocationTableSections.push_back(sh); + SectionRelocMap[getSection(sh->sh_link)].push_back(i); } ++sh; } + // Sort section relocation lists by index. + for (typename RelocMap_t::iterator i = SectionRelocMap.begin(), + e = SectionRelocMap.end(); i != e; ++i) { + std::sort(i->second.begin(), i->second.end()); + } + // Get string table sections. dot_shstrtab_sec = getSection(Header->e_shstrndx); if (dot_shstrtab_sec) { @@ -894,8 +1115,8 @@ ELFObjectFile::ELFObjectFile(MemoryBuffer *Object } template -ObjectFile::symbol_iterator ELFObjectFile - ::begin_symbols() const { +symbol_iterator ELFObjectFile + ::begin_symbols() const { DataRefImpl SymbolData; memset(&SymbolData, 0, sizeof(SymbolData)); if (SymbolTableSections.size() == 0) { @@ -909,8 +1130,8 @@ ObjectFile::symbol_iterator ELFObjectFile } template -ObjectFile::symbol_iterator ELFObjectFile - ::end_symbols() const { +symbol_iterator ELFObjectFile + ::end_symbols() const { DataRefImpl SymbolData; memset(&SymbolData, 0, sizeof(SymbolData)); SymbolData.d.a = std::numeric_limits::max(); @@ -919,8 +1140,8 @@ ObjectFile::symbol_iterator ELFObjectFile } template -ObjectFile::section_iterator ELFObjectFile - ::begin_sections() const { +section_iterator ELFObjectFile + ::begin_sections() const { DataRefImpl ret; memset(&ret, 0, sizeof(DataRefImpl)); ret.p = reinterpret_cast(base() + Header->e_shoff); @@ -928,8 +1149,8 @@ ObjectFile::section_iterator ELFObjectFile } template -ObjectFile::section_iterator ELFObjectFile - ::end_sections() const { +section_iterator ELFObjectFile + ::end_sections() const { DataRefImpl ret; memset(&ret, 0, sizeof(DataRefImpl)); ret.p = reinterpret_cast(base() @@ -938,31 +1159,6 @@ ObjectFile::section_iterator ELFObjectFile return section_iterator(SectionRef(ret, this)); } -template -ObjectFile::relocation_iterator ELFObjectFile - ::begin_relocations() const { - DataRefImpl RelData; - memset(&RelData, 0, sizeof(RelData)); - if (RelocationTableSections.size() == 0) { - RelData.d.a = std::numeric_limits::max(); - RelData.d.b = std::numeric_limits::max(); - } else { - RelData.d.a = 0; - RelData.d.b = 0; - } - return relocation_iterator(RelocationRef(RelData, this)); -} - -template -ObjectFile::relocation_iterator ELFObjectFile - ::end_relocations() const { - DataRefImpl RelData; - memset(&RelData, 0, sizeof(RelData)); - RelData.d.a = std::numeric_limits::max(); - RelData.d.b = std::numeric_limits::max(); - return relocation_iterator(RelocationRef(RelData, this)); -} - template uint8_t ELFObjectFile::getBytesInAddress() const { return is64Bits ? 8 : 4; @@ -1012,41 +1208,49 @@ unsigned ELFObjectFile::getArch() const { } } + template template inline const T * -ELFObjectFile::getEntry(DataRefImpl Entry, - Sections_t Sections) const { - const Elf_Shdr *sec = Sections[Entry.d.b]; +ELFObjectFile::getEntry(uint16_t Section, + uint32_t Entry) const { + return getEntry(getSection(Section), Entry); +} + +template +template +inline const T * +ELFObjectFile::getEntry(const Elf_Shdr * Section, + uint32_t Entry) const { return reinterpret_cast( base() - + sec->sh_offset - + (Entry.d.a * sec->sh_entsize)); + + Section->sh_offset + + (Entry * Section->sh_entsize)); } template const typename ELFObjectFile::Elf_Sym * ELFObjectFile::getSymbol(DataRefImpl Symb) const { - return getEntry(Symb, SymbolTableSections); + return getEntry(SymbolTableSections[Symb.d.b], Symb.d.a); } template const typename ELFObjectFile::Elf_Rel * ELFObjectFile::getRel(DataRefImpl Rel) const { - return getEntry(Rel, RelocationTableSections); + return getEntry(Rel.w.b, Rel.w.c); } template const typename ELFObjectFile::Elf_Rela * ELFObjectFile::getRela(DataRefImpl Rela) const { - return getEntry(Rela, RelocationTableSections); + return getEntry(Rela.w.b, Rela.w.c); } template const typename ELFObjectFile::Elf_Shdr * ELFObjectFile::getSection(DataRefImpl Symb) const { const Elf_Shdr *sec = getSection(Symb.d.b); - if (sec->sh_type != ELF::SHT_SYMTAB) + if (sec->sh_type != ELF::SHT_SYMTAB || sec->sh_type != ELF::SHT_DYNSYM) // FIXME: Proper error handling. report_fatal_error("Invalid symbol table section!"); return sec; @@ -1084,6 +1288,24 @@ const char *ELFObjectFile return (const char *)base() + section->sh_offset + offset; } +template +error_code ELFObjectFile + ::getSymbolName(const Elf_Sym *symb, + StringRef &Result) const { + if (symb->st_name == 0) { + const Elf_Shdr *section = getSection(symb->st_shndx); + if (!section) + Result = ""; + else + Result = getString(dot_shstrtab_sec, section->sh_name); + return object_error::success; + } + + // Use the default symbol table name section. + Result = getString(dot_strtab_sec, symb->st_name); + return object_error::success; +} + // EI_CLASS, EI_DATA. static std::pair getElfArchType(MemoryBuffer *Object) { diff --git a/lib/Object/MachOObjectFile.cpp b/lib/Object/MachOObjectFile.cpp index 33e0d2643bb..73fa8275c30 100644 --- a/lib/Object/MachOObjectFile.cpp +++ b/lib/Object/MachOObjectFile.cpp @@ -39,8 +39,6 @@ public: virtual symbol_iterator end_symbols() const; virtual section_iterator begin_sections() const; virtual section_iterator end_sections() const; - virtual relocation_iterator begin_relocations() const; - virtual relocation_iterator end_relocations() const; virtual uint8_t getBytesInAddress() const; virtual StringRef getFileFormatName() const; @@ -67,6 +65,8 @@ protected: virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const; virtual error_code sectionContainsSymbol(DataRefImpl DRI, DataRefImpl S, bool &Result) const; + virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const; + virtual relocation_iterator getSectionRelEnd(DataRefImpl Sec) const; virtual error_code getRelocationNext(DataRefImpl Rel, RelocationRef &Res) const; @@ -76,8 +76,13 @@ protected: SymbolRef &Res) const; virtual error_code getRelocationType(DataRefImpl Rel, uint32_t &Res) const; + virtual error_code getRelocationTypeName(DataRefImpl Rel, + SmallVectorImpl &Result) const; virtual error_code getRelocationAdditionalInfo(DataRefImpl Rel, int64_t &Res) const; + virtual error_code getRelocationValueString(DataRefImpl Rel, + SmallVectorImpl &Result) const; + private: MachOObject *MachOObj; mutable uint32_t RegisteredStringTable; @@ -96,6 +101,7 @@ private: InMemoryStruct &Res) const; void getRelocation(DataRefImpl Rel, InMemoryStruct &Res) const; + std::size_t getSectionIndex(DataRefImpl Sec) const; }; MachOObjectFile::MachOObjectFile(MemoryBuffer *Object, MachOObject *MOO, @@ -324,7 +330,7 @@ error_code MachOObjectFile::getSymbolType(DataRefImpl Symb, } -ObjectFile::symbol_iterator MachOObjectFile::begin_symbols() const { +symbol_iterator MachOObjectFile::begin_symbols() const { // DRI.d.a = segment number; DRI.d.b = symbol index. DataRefImpl DRI; DRI.d.a = DRI.d.b = 0; @@ -332,7 +338,7 @@ ObjectFile::symbol_iterator MachOObjectFile::begin_symbols() const { return symbol_iterator(SymbolRef(DRI, this)); } -ObjectFile::symbol_iterator MachOObjectFile::end_symbols() const { +symbol_iterator MachOObjectFile::end_symbols() const { DataRefImpl DRI; DRI.d.a = MachOObj->getHeader().NumLoadCommands; DRI.d.b = 0; @@ -380,6 +386,13 @@ MachOObjectFile::getSection(DataRefImpl DRI, MachOObj->ReadSection(LCI, DRI.d.b, Res); } +std::size_t MachOObjectFile::getSectionIndex(DataRefImpl Sec) const { + SectionList::const_iterator loc = + std::find(Sections.begin(), Sections.end(), Sec); + assert(loc != Sections.end() && "Sec is not a valid section!"); + return std::distance(Sections.begin(), loc); +} + void MachOObjectFile::getSection64(DataRefImpl DRI, InMemoryStruct &Res) const { @@ -511,14 +524,37 @@ error_code MachOObjectFile::sectionContainsSymbol(DataRefImpl Sec, return object_error::success; } -ObjectFile::section_iterator MachOObjectFile::begin_sections() const { +relocation_iterator MachOObjectFile::getSectionRelBegin(DataRefImpl Sec) const { + DataRefImpl ret; + ret.d.a = 0; + ret.d.b = getSectionIndex(Sec); + return relocation_iterator(RelocationRef(ret, this)); +} +relocation_iterator MachOObjectFile::getSectionRelEnd(DataRefImpl Sec) const { + uint32_t last_reloc; + if (is64BitLoadCommand(MachOObj, Sec)) { + InMemoryStruct Sect; + getSection64(Sec, Sect); + last_reloc = Sect->NumRelocationTableEntries; + } else { + InMemoryStruct Sect; + getSection(Sec, Sect); + last_reloc = Sect->NumRelocationTableEntries; + } + DataRefImpl ret; + ret.d.a = last_reloc; + ret.d.b = getSectionIndex(Sec); + return relocation_iterator(RelocationRef(ret, this)); +} + +section_iterator MachOObjectFile::begin_sections() const { DataRefImpl DRI; DRI.d.a = DRI.d.b = 0; moveToNextSection(DRI); return section_iterator(SectionRef(DRI, this)); } -ObjectFile::section_iterator MachOObjectFile::end_sections() const { +section_iterator MachOObjectFile::end_sections() const { DataRefImpl DRI; DRI.d.a = MachOObj->getHeader().NumLoadCommands; DRI.d.b = 0; @@ -545,23 +581,6 @@ getRelocation(DataRefImpl Rel, error_code MachOObjectFile::getRelocationNext(DataRefImpl Rel, RelocationRef &Res) const { ++Rel.d.a; - while (Rel.d.b < Sections.size()) { - unsigned relocationCount; - if (MachOObj->is64Bit()) { - InMemoryStruct Sect; - getSection64(Sections[Rel.d.b], Sect); - relocationCount = Sect->NumRelocationTableEntries; - } else { - InMemoryStruct Sect; - getSection(Sections[Rel.d.b], Sect); - relocationCount = Sect->NumRelocationTableEntries; - } - if (Rel.d.a < relocationCount) - break; - - Rel.d.a = 0; - ++Rel.d.b; - } Res = RelocationRef(Rel, this); return object_error::success; } @@ -610,6 +629,10 @@ error_code MachOObjectFile::getRelocationType(DataRefImpl Rel, Res = RE->Word1; return object_error::success; } +error_code MachOObjectFile::getRelocationTypeName(DataRefImpl Rel, + SmallVectorImpl &Result) const { + return object_error::success; +} error_code MachOObjectFile::getRelocationAdditionalInfo(DataRefImpl Rel, int64_t &Res) const { InMemoryStruct RE; @@ -631,16 +654,9 @@ error_code MachOObjectFile::getRelocationAdditionalInfo(DataRefImpl Rel, } return object_error::success; } -ObjectFile::relocation_iterator MachOObjectFile::begin_relocations() const { - DataRefImpl ret; - ret.d.a = ret.d.b = 0; - return relocation_iterator(RelocationRef(ret, this)); -} -ObjectFile::relocation_iterator MachOObjectFile::end_relocations() const { - DataRefImpl ret; - ret.d.a = 0; - ret.d.b = Sections.size(); - return relocation_iterator(RelocationRef(ret, this)); +error_code MachOObjectFile::getRelocationValueString(DataRefImpl Rel, + SmallVectorImpl &Result) const { + return object_error::success; } /*===-- Miscellaneous -----------------------------------------------------===*/ diff --git a/lib/Object/Object.cpp b/lib/Object/Object.cpp index 9a373ad21bd..2ea8db97867 100644 --- a/lib/Object/Object.cpp +++ b/lib/Object/Object.cpp @@ -27,8 +27,8 @@ void LLVMDisposeObjectFile(LLVMObjectFileRef ObjectFile) { } LLVMSectionIteratorRef LLVMGetSections(LLVMObjectFileRef ObjectFile) { - ObjectFile::section_iterator SI = unwrap(ObjectFile)->begin_sections(); - return wrap(new ObjectFile::section_iterator(SI)); + section_iterator SI = unwrap(ObjectFile)->begin_sections(); + return wrap(new section_iterator(SI)); } void LLVMDisposeSectionIterator(LLVMSectionIteratorRef SI) { diff --git a/tools/llvm-objdump/llvm-objdump.cpp b/tools/llvm-objdump/llvm-objdump.cpp index 78824e9e067..bb4a77bc796 100644 --- a/tools/llvm-objdump/llvm-objdump.cpp +++ b/tools/llvm-objdump/llvm-objdump.cpp @@ -155,7 +155,7 @@ void llvm::DisassembleInputLibObject(StringRef Filename) { << ":\tfile format " << Obj->getFileFormatName() << "\n\n"; error_code ec; - for (ObjectFile::section_iterator i = Obj->begin_sections(), + for (section_iterator i = Obj->begin_sections(), e = Obj->end_sections(); i != e; i.increment(ec)) { if (error(ec)) break; @@ -165,7 +165,7 @@ void llvm::DisassembleInputLibObject(StringRef Filename) { // Make a list of all the symbols in this section. std::vector > Symbols; - for (ObjectFile::symbol_iterator si = Obj->begin_symbols(), + for (symbol_iterator si = Obj->begin_symbols(), se = Obj->end_symbols(); si != se; si.increment(ec)) { bool contains; -- 2.34.1