mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-20 10:30:03 +00:00
Use the current local variable naming style.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199417 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rui Ueyama
parent
40c7e400fe
commit
671a9e2ce0
@ -32,9 +32,9 @@ using support::little16_t;
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namespace {
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// Returns false if size is greater than the buffer size. And sets ec.
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bool checkSize(const MemoryBuffer *m, error_code &ec, uint64_t size) {
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if (m->getBufferSize() < size) {
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ec = object_error::unexpected_eof;
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bool checkSize(const MemoryBuffer *M, error_code &EC, uint64_t Size) {
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if (M->getBufferSize() < Size) {
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EC = object_error::unexpected_eof;
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return false;
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}
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return true;
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@ -56,104 +56,104 @@ error_code getObject(const T *&Obj, const MemoryBuffer *M, const uint8_t *Ptr,
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}
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}
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const coff_symbol *COFFObjectFile::toSymb(DataRefImpl Symb) const {
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const coff_symbol *addr = reinterpret_cast<const coff_symbol*>(Symb.p);
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const coff_symbol *COFFObjectFile::toSymb(DataRefImpl Ref) const {
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const coff_symbol *Addr = reinterpret_cast<const coff_symbol*>(Ref.p);
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# ifndef NDEBUG
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// Verify that the symbol points to a valid entry in the symbol table.
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uintptr_t offset = uintptr_t(addr) - uintptr_t(base());
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if (offset < COFFHeader->PointerToSymbolTable
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|| offset >= COFFHeader->PointerToSymbolTable
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uintptr_t Offset = uintptr_t(Addr) - uintptr_t(base());
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if (Offset < COFFHeader->PointerToSymbolTable
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|| Offset >= COFFHeader->PointerToSymbolTable
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+ (COFFHeader->NumberOfSymbols * sizeof(coff_symbol)))
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report_fatal_error("Symbol was outside of symbol table.");
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assert((offset - COFFHeader->PointerToSymbolTable) % sizeof(coff_symbol)
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assert((Offset - COFFHeader->PointerToSymbolTable) % sizeof(coff_symbol)
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== 0 && "Symbol did not point to the beginning of a symbol");
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# endif
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return addr;
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return Addr;
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}
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const coff_section *COFFObjectFile::toSec(DataRefImpl Sec) const {
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const coff_section *addr = reinterpret_cast<const coff_section*>(Sec.p);
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const coff_section *COFFObjectFile::toSec(DataRefImpl Ref) const {
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const coff_section *Addr = reinterpret_cast<const coff_section*>(Ref.p);
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# ifndef NDEBUG
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// Verify that the section points to a valid entry in the section table.
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if (addr < SectionTable
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|| addr >= (SectionTable + COFFHeader->NumberOfSections))
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if (Addr < SectionTable
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|| Addr >= (SectionTable + COFFHeader->NumberOfSections))
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report_fatal_error("Section was outside of section table.");
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uintptr_t offset = uintptr_t(addr) - uintptr_t(SectionTable);
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assert(offset % sizeof(coff_section) == 0 &&
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uintptr_t Offset = uintptr_t(Addr) - uintptr_t(SectionTable);
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assert(Offset % sizeof(coff_section) == 0 &&
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"Section did not point to the beginning of a section");
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# endif
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return addr;
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return Addr;
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}
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error_code COFFObjectFile::getSymbolNext(DataRefImpl Symb,
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error_code COFFObjectFile::getSymbolNext(DataRefImpl Ref,
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SymbolRef &Result) const {
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const coff_symbol *symb = toSymb(Symb);
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symb += 1 + symb->NumberOfAuxSymbols;
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Symb.p = reinterpret_cast<uintptr_t>(symb);
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Result = SymbolRef(Symb, this);
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const coff_symbol *Symb = toSymb(Ref);
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Symb += 1 + Symb->NumberOfAuxSymbols;
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Ref.p = reinterpret_cast<uintptr_t>(Symb);
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Result = SymbolRef(Ref, this);
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return object_error::success;
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}
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error_code COFFObjectFile::getSymbolName(DataRefImpl Symb,
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StringRef &Result) const {
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const coff_symbol *symb = toSymb(Symb);
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return getSymbolName(symb, Result);
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error_code COFFObjectFile::getSymbolName(DataRefImpl Ref,
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StringRef &Result) const {
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const coff_symbol *Symb = toSymb(Ref);
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return getSymbolName(Symb, Result);
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}
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error_code COFFObjectFile::getSymbolFileOffset(DataRefImpl Symb,
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error_code COFFObjectFile::getSymbolFileOffset(DataRefImpl Ref,
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uint64_t &Result) const {
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const coff_symbol *symb = toSymb(Symb);
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const coff_symbol *Symb = toSymb(Ref);
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const coff_section *Section = NULL;
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if (error_code ec = getSection(symb->SectionNumber, Section))
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return ec;
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if (error_code EC = getSection(Symb->SectionNumber, Section))
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return EC;
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if (symb->SectionNumber == COFF::IMAGE_SYM_UNDEFINED)
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if (Symb->SectionNumber == COFF::IMAGE_SYM_UNDEFINED)
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Result = UnknownAddressOrSize;
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else if (Section)
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Result = Section->PointerToRawData + symb->Value;
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Result = Section->PointerToRawData + Symb->Value;
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else
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Result = symb->Value;
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Result = Symb->Value;
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return object_error::success;
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}
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error_code COFFObjectFile::getSymbolAddress(DataRefImpl Symb,
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error_code COFFObjectFile::getSymbolAddress(DataRefImpl Ref,
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uint64_t &Result) const {
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const coff_symbol *symb = toSymb(Symb);
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const coff_symbol *Symb = toSymb(Ref);
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const coff_section *Section = NULL;
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if (error_code ec = getSection(symb->SectionNumber, Section))
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return ec;
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if (error_code EC = getSection(Symb->SectionNumber, Section))
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return EC;
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if (symb->SectionNumber == COFF::IMAGE_SYM_UNDEFINED)
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if (Symb->SectionNumber == COFF::IMAGE_SYM_UNDEFINED)
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Result = UnknownAddressOrSize;
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else if (Section)
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Result = Section->VirtualAddress + symb->Value;
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Result = Section->VirtualAddress + Symb->Value;
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else
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Result = symb->Value;
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Result = Symb->Value;
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return object_error::success;
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}
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error_code COFFObjectFile::getSymbolType(DataRefImpl Symb,
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error_code COFFObjectFile::getSymbolType(DataRefImpl Ref,
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SymbolRef::Type &Result) const {
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const coff_symbol *symb = toSymb(Symb);
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const coff_symbol *Symb = toSymb(Ref);
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Result = SymbolRef::ST_Other;
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if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
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symb->SectionNumber == COFF::IMAGE_SYM_UNDEFINED) {
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if (Symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
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Symb->SectionNumber == COFF::IMAGE_SYM_UNDEFINED) {
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Result = SymbolRef::ST_Unknown;
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} else {
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if (symb->getComplexType() == COFF::IMAGE_SYM_DTYPE_FUNCTION) {
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if (Symb->getComplexType() == COFF::IMAGE_SYM_DTYPE_FUNCTION) {
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Result = SymbolRef::ST_Function;
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} else {
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uint32_t Characteristics = 0;
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if (symb->SectionNumber > 0) {
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if (Symb->SectionNumber > 0) {
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const coff_section *Section = NULL;
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if (error_code ec = getSection(symb->SectionNumber, Section))
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return ec;
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if (error_code EC = getSection(Symb->SectionNumber, Section))
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return EC;
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Characteristics = Section->Characteristics;
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}
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if (Characteristics & COFF::IMAGE_SCN_MEM_READ &&
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@ -164,210 +164,210 @@ error_code COFFObjectFile::getSymbolType(DataRefImpl Symb,
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return object_error::success;
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}
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error_code COFFObjectFile::getSymbolFlags(DataRefImpl Symb,
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error_code COFFObjectFile::getSymbolFlags(DataRefImpl Ref,
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uint32_t &Result) const {
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const coff_symbol *symb = toSymb(Symb);
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const coff_symbol *Symb = toSymb(Ref);
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Result = SymbolRef::SF_None;
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// TODO: Correctly set SF_FormatSpecific, SF_ThreadLocal, SF_Common
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if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
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symb->SectionNumber == COFF::IMAGE_SYM_UNDEFINED)
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if (Symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
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Symb->SectionNumber == COFF::IMAGE_SYM_UNDEFINED)
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Result |= SymbolRef::SF_Undefined;
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// TODO: This are certainly too restrictive.
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if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL)
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if (Symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL)
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Result |= SymbolRef::SF_Global;
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if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL)
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if (Symb->StorageClass == COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL)
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Result |= SymbolRef::SF_Weak;
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if (symb->SectionNumber == COFF::IMAGE_SYM_ABSOLUTE)
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if (Symb->SectionNumber == COFF::IMAGE_SYM_ABSOLUTE)
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Result |= SymbolRef::SF_Absolute;
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return object_error::success;
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}
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error_code COFFObjectFile::getSymbolSize(DataRefImpl Symb,
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error_code COFFObjectFile::getSymbolSize(DataRefImpl Ref,
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uint64_t &Result) const {
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// FIXME: Return the correct size. This requires looking at all the symbols
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// in the same section as this symbol, and looking for either the next
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// symbol, or the end of the section.
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const coff_symbol *symb = toSymb(Symb);
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const coff_symbol *Symb = toSymb(Ref);
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const coff_section *Section = NULL;
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if (error_code ec = getSection(symb->SectionNumber, Section))
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return ec;
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if (error_code EC = getSection(Symb->SectionNumber, Section))
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return EC;
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if (symb->SectionNumber == COFF::IMAGE_SYM_UNDEFINED)
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if (Symb->SectionNumber == COFF::IMAGE_SYM_UNDEFINED)
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Result = UnknownAddressOrSize;
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else if (Section)
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Result = Section->SizeOfRawData - symb->Value;
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Result = Section->SizeOfRawData - Symb->Value;
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else
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Result = 0;
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return object_error::success;
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}
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error_code COFFObjectFile::getSymbolSection(DataRefImpl Symb,
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error_code COFFObjectFile::getSymbolSection(DataRefImpl Ref,
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section_iterator &Result) const {
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const coff_symbol *symb = toSymb(Symb);
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if (symb->SectionNumber <= COFF::IMAGE_SYM_UNDEFINED)
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const coff_symbol *Symb = toSymb(Ref);
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if (Symb->SectionNumber <= COFF::IMAGE_SYM_UNDEFINED)
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Result = end_sections();
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else {
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const coff_section *sec = 0;
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if (error_code ec = getSection(symb->SectionNumber, sec)) return ec;
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DataRefImpl Sec;
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Sec.p = reinterpret_cast<uintptr_t>(sec);
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Result = section_iterator(SectionRef(Sec, this));
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const coff_section *Sec = 0;
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if (error_code EC = getSection(Symb->SectionNumber, Sec)) return EC;
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DataRefImpl Ref;
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Ref.p = reinterpret_cast<uintptr_t>(Sec);
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Result = section_iterator(SectionRef(Ref, this));
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}
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return object_error::success;
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}
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error_code COFFObjectFile::getSymbolValue(DataRefImpl Symb,
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error_code COFFObjectFile::getSymbolValue(DataRefImpl Ref,
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uint64_t &Val) const {
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report_fatal_error("getSymbolValue unimplemented in COFFObjectFile");
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}
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error_code COFFObjectFile::getSectionNext(DataRefImpl Sec,
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error_code COFFObjectFile::getSectionNext(DataRefImpl Ref,
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SectionRef &Result) const {
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const coff_section *sec = toSec(Sec);
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sec += 1;
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Sec.p = reinterpret_cast<uintptr_t>(sec);
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Result = SectionRef(Sec, this);
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const coff_section *Sec = toSec(Ref);
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Sec += 1;
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Ref.p = reinterpret_cast<uintptr_t>(Sec);
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Result = SectionRef(Ref, this);
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return object_error::success;
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}
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error_code COFFObjectFile::getSectionName(DataRefImpl Sec,
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error_code COFFObjectFile::getSectionName(DataRefImpl Ref,
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StringRef &Result) const {
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const coff_section *sec = toSec(Sec);
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return getSectionName(sec, Result);
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const coff_section *Sec = toSec(Ref);
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return getSectionName(Sec, Result);
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}
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error_code COFFObjectFile::getSectionAddress(DataRefImpl Sec,
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error_code COFFObjectFile::getSectionAddress(DataRefImpl Ref,
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uint64_t &Result) const {
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const coff_section *sec = toSec(Sec);
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Result = sec->VirtualAddress;
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const coff_section *Sec = toSec(Ref);
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Result = Sec->VirtualAddress;
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return object_error::success;
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}
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error_code COFFObjectFile::getSectionSize(DataRefImpl Sec,
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error_code COFFObjectFile::getSectionSize(DataRefImpl Ref,
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uint64_t &Result) const {
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const coff_section *sec = toSec(Sec);
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Result = sec->SizeOfRawData;
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const coff_section *Sec = toSec(Ref);
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Result = Sec->SizeOfRawData;
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return object_error::success;
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}
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error_code COFFObjectFile::getSectionContents(DataRefImpl Sec,
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error_code COFFObjectFile::getSectionContents(DataRefImpl Ref,
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StringRef &Result) const {
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const coff_section *sec = toSec(Sec);
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const coff_section *Sec = toSec(Ref);
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ArrayRef<uint8_t> Res;
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error_code EC = getSectionContents(sec, Res);
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error_code EC = getSectionContents(Sec, Res);
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Result = StringRef(reinterpret_cast<const char*>(Res.data()), Res.size());
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return EC;
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}
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error_code COFFObjectFile::getSectionAlignment(DataRefImpl Sec,
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error_code COFFObjectFile::getSectionAlignment(DataRefImpl Ref,
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uint64_t &Res) const {
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const coff_section *sec = toSec(Sec);
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if (!sec)
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const coff_section *Sec = toSec(Ref);
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if (!Sec)
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return object_error::parse_failed;
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Res = uint64_t(1) << (((sec->Characteristics & 0x00F00000) >> 20) - 1);
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Res = uint64_t(1) << (((Sec->Characteristics & 0x00F00000) >> 20) - 1);
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return object_error::success;
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}
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error_code COFFObjectFile::isSectionText(DataRefImpl Sec,
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error_code COFFObjectFile::isSectionText(DataRefImpl Ref,
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bool &Result) const {
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const coff_section *sec = toSec(Sec);
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Result = sec->Characteristics & COFF::IMAGE_SCN_CNT_CODE;
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const coff_section *Sec = toSec(Ref);
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Result = Sec->Characteristics & COFF::IMAGE_SCN_CNT_CODE;
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return object_error::success;
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}
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error_code COFFObjectFile::isSectionData(DataRefImpl Sec,
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error_code COFFObjectFile::isSectionData(DataRefImpl Ref,
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bool &Result) const {
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const coff_section *sec = toSec(Sec);
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Result = sec->Characteristics & COFF::IMAGE_SCN_CNT_INITIALIZED_DATA;
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const coff_section *Sec = toSec(Ref);
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Result = Sec->Characteristics & COFF::IMAGE_SCN_CNT_INITIALIZED_DATA;
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return object_error::success;
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}
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error_code COFFObjectFile::isSectionBSS(DataRefImpl Sec,
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error_code COFFObjectFile::isSectionBSS(DataRefImpl Ref,
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bool &Result) const {
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const coff_section *sec = toSec(Sec);
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Result = sec->Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA;
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const coff_section *Sec = toSec(Ref);
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Result = Sec->Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA;
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return object_error::success;
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}
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error_code COFFObjectFile::isSectionRequiredForExecution(DataRefImpl Sec,
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error_code COFFObjectFile::isSectionRequiredForExecution(DataRefImpl Ref,
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bool &Result) const {
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// FIXME: Unimplemented
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Result = true;
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return object_error::success;
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}
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error_code COFFObjectFile::isSectionVirtual(DataRefImpl Sec,
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error_code COFFObjectFile::isSectionVirtual(DataRefImpl Ref,
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bool &Result) const {
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const coff_section *sec = toSec(Sec);
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Result = sec->Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA;
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const coff_section *Sec = toSec(Ref);
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Result = Sec->Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA;
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return object_error::success;
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}
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error_code COFFObjectFile::isSectionZeroInit(DataRefImpl Sec,
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error_code COFFObjectFile::isSectionZeroInit(DataRefImpl Ref,
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bool &Result) const {
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// FIXME: Unimplemented.
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Result = false;
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return object_error::success;
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}
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error_code COFFObjectFile::isSectionReadOnlyData(DataRefImpl Sec,
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error_code COFFObjectFile::isSectionReadOnlyData(DataRefImpl Ref,
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bool &Result) const {
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// FIXME: Unimplemented.
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Result = false;
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return object_error::success;
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}
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error_code COFFObjectFile::sectionContainsSymbol(DataRefImpl Sec,
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DataRefImpl Symb,
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error_code COFFObjectFile::sectionContainsSymbol(DataRefImpl SecRef,
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DataRefImpl SymbRef,
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bool &Result) const {
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const coff_section *sec = toSec(Sec);
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const coff_symbol *symb = toSymb(Symb);
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const coff_section *symb_sec = 0;
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if (error_code ec = getSection(symb->SectionNumber, symb_sec)) return ec;
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if (symb_sec == sec)
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const coff_section *Sec = toSec(SecRef);
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const coff_symbol *Symb = toSymb(SymbRef);
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const coff_section *SymbSec = 0;
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if (error_code EC = getSection(Symb->SectionNumber, SymbSec)) return EC;
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if (SymbSec == Sec)
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Result = true;
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else
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Result = false;
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return object_error::success;
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}
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relocation_iterator COFFObjectFile::section_rel_begin(DataRefImpl Sec) const {
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const coff_section *sec = toSec(Sec);
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DataRefImpl ret;
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if (sec->NumberOfRelocations == 0)
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ret.p = 0;
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relocation_iterator COFFObjectFile::section_rel_begin(DataRefImpl Ref) const {
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const coff_section *Sec = toSec(Ref);
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DataRefImpl Ret;
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if (Sec->NumberOfRelocations == 0)
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Ret.p = 0;
|
||||
else
|
||||
ret.p = reinterpret_cast<uintptr_t>(base() + sec->PointerToRelocations);
|
||||
Ret.p = reinterpret_cast<uintptr_t>(base() + Sec->PointerToRelocations);
|
||||
|
||||
return relocation_iterator(RelocationRef(ret, this));
|
||||
return relocation_iterator(RelocationRef(Ret, this));
|
||||
}
|
||||
|
||||
relocation_iterator COFFObjectFile::section_rel_end(DataRefImpl Sec) const {
|
||||
const coff_section *sec = toSec(Sec);
|
||||
DataRefImpl ret;
|
||||
if (sec->NumberOfRelocations == 0)
|
||||
ret.p = 0;
|
||||
relocation_iterator COFFObjectFile::section_rel_end(DataRefImpl Ref) const {
|
||||
const coff_section *Sec = toSec(Ref);
|
||||
DataRefImpl Ret;
|
||||
if (Sec->NumberOfRelocations == 0)
|
||||
Ret.p = 0;
|
||||
else
|
||||
ret.p = reinterpret_cast<uintptr_t>(
|
||||
Ret.p = reinterpret_cast<uintptr_t>(
|
||||
reinterpret_cast<const coff_relocation*>(
|
||||
base() + sec->PointerToRelocations)
|
||||
+ sec->NumberOfRelocations);
|
||||
base() + Sec->PointerToRelocations)
|
||||
+ Sec->NumberOfRelocations);
|
||||
|
||||
return relocation_iterator(RelocationRef(ret, this));
|
||||
return relocation_iterator(RelocationRef(Ret, this));
|
||||
}
|
||||
|
||||
// Initialize the pointer to the symbol table.
|
||||
error_code COFFObjectFile::initSymbolTablePtr() {
|
||||
if (error_code ec = getObject(
|
||||
if (error_code EC = getObject(
|
||||
SymbolTable, Data, base() + COFFHeader->PointerToSymbolTable,
|
||||
COFFHeader->NumberOfSymbols * sizeof(coff_symbol)))
|
||||
return ec;
|
||||
return EC;
|
||||
|
||||
// Find string table. The first four byte of the string table contains the
|
||||
// total size of the string table, including the size field itself. If the
|
||||
@ -376,12 +376,12 @@ error_code COFFObjectFile::initSymbolTablePtr() {
|
||||
base() + COFFHeader->PointerToSymbolTable +
|
||||
COFFHeader->NumberOfSymbols * sizeof(coff_symbol);
|
||||
const ulittle32_t *StringTableSizePtr;
|
||||
if (error_code ec = getObject(StringTableSizePtr, Data, StringTableAddr))
|
||||
return ec;
|
||||
if (error_code EC = getObject(StringTableSizePtr, Data, StringTableAddr))
|
||||
return EC;
|
||||
StringTableSize = *StringTableSizePtr;
|
||||
if (error_code ec =
|
||||
if (error_code EC =
|
||||
getObject(StringTable, Data, StringTableAddr, StringTableSize))
|
||||
return ec;
|
||||
return EC;
|
||||
|
||||
// Check that the string table is null terminated if has any in it.
|
||||
if (StringTableSize < 4 ||
|
||||
@ -392,12 +392,12 @@ error_code COFFObjectFile::initSymbolTablePtr() {
|
||||
|
||||
// Returns the file offset for the given RVA.
|
||||
error_code COFFObjectFile::getRvaPtr(uint32_t Rva, uintptr_t &Res) const {
|
||||
error_code ec;
|
||||
for (section_iterator i = begin_sections(), e = end_sections(); i != e;
|
||||
i.increment(ec)) {
|
||||
if (ec)
|
||||
return ec;
|
||||
const coff_section *Section = getCOFFSection(i);
|
||||
error_code EC;
|
||||
for (section_iterator I = begin_sections(), E = end_sections(); I != E;
|
||||
I.increment(EC)) {
|
||||
if (EC)
|
||||
return EC;
|
||||
const coff_section *Section = getCOFFSection(I);
|
||||
uint32_t SectionStart = Section->VirtualAddress;
|
||||
uint32_t SectionEnd = Section->VirtualAddress + Section->VirtualSize;
|
||||
if (SectionStart <= Rva && Rva < SectionEnd) {
|
||||
@ -414,8 +414,8 @@ error_code COFFObjectFile::getRvaPtr(uint32_t Rva, uintptr_t &Res) const {
|
||||
error_code COFFObjectFile::
|
||||
getHintName(uint32_t Rva, uint16_t &Hint, StringRef &Name) const {
|
||||
uintptr_t IntPtr = 0;
|
||||
if (error_code ec = getRvaPtr(Rva, IntPtr))
|
||||
return ec;
|
||||
if (error_code EC = getRvaPtr(Rva, IntPtr))
|
||||
return EC;
|
||||
const uint8_t *Ptr = reinterpret_cast<const uint8_t *>(IntPtr);
|
||||
Hint = *reinterpret_cast<const ulittle16_t *>(Ptr);
|
||||
Name = StringRef(reinterpret_cast<const char *>(Ptr + 2));
|
||||
@ -441,8 +441,8 @@ error_code COFFObjectFile::initImportTablePtr() {
|
||||
// Find the section that contains the RVA. This is needed because the RVA is
|
||||
// the import table's memory address which is different from its file offset.
|
||||
uintptr_t IntPtr = 0;
|
||||
if (error_code ec = getRvaPtr(ImportTableRva, IntPtr))
|
||||
return ec;
|
||||
if (error_code EC = getRvaPtr(ImportTableRva, IntPtr))
|
||||
return EC;
|
||||
ImportDirectory = reinterpret_cast<
|
||||
const import_directory_table_entry *>(IntPtr);
|
||||
return object_error::success;
|
||||
@ -468,49 +468,42 @@ error_code COFFObjectFile::initExportTablePtr() {
|
||||
return object_error::success;
|
||||
}
|
||||
|
||||
COFFObjectFile::COFFObjectFile(MemoryBuffer *Object, error_code &ec)
|
||||
: ObjectFile(Binary::ID_COFF, Object)
|
||||
, COFFHeader(0)
|
||||
, PE32Header(0)
|
||||
, DataDirectory(0)
|
||||
, SectionTable(0)
|
||||
, SymbolTable(0)
|
||||
, StringTable(0)
|
||||
, StringTableSize(0)
|
||||
, ImportDirectory(0)
|
||||
, NumberOfImportDirectory(0)
|
||||
, ExportDirectory(0) {
|
||||
COFFObjectFile::COFFObjectFile(MemoryBuffer *Object, error_code &EC)
|
||||
: ObjectFile(Binary::ID_COFF, Object), COFFHeader(0), PE32Header(0),
|
||||
DataDirectory(0), SectionTable(0), SymbolTable(0), StringTable(0),
|
||||
StringTableSize(0), ImportDirectory(0), NumberOfImportDirectory(0),
|
||||
ExportDirectory(0) {
|
||||
// Check that we at least have enough room for a header.
|
||||
if (!checkSize(Data, ec, sizeof(coff_file_header))) return;
|
||||
if (!checkSize(Data, EC, sizeof(coff_file_header))) return;
|
||||
|
||||
// The current location in the file where we are looking at.
|
||||
uint64_t CurPtr = 0;
|
||||
|
||||
// PE header is optional and is present only in executables. If it exists,
|
||||
// it is placed right after COFF header.
|
||||
bool hasPEHeader = false;
|
||||
bool HasPEHeader = false;
|
||||
|
||||
// Check if this is a PE/COFF file.
|
||||
if (base()[0] == 0x4d && base()[1] == 0x5a) {
|
||||
// PE/COFF, seek through MS-DOS compatibility stub and 4-byte
|
||||
// PE signature to find 'normal' COFF header.
|
||||
if (!checkSize(Data, ec, 0x3c + 8)) return;
|
||||
if (!checkSize(Data, EC, 0x3c + 8)) return;
|
||||
CurPtr = *reinterpret_cast<const ulittle16_t *>(base() + 0x3c);
|
||||
// Check the PE magic bytes. ("PE\0\0")
|
||||
if (std::memcmp(base() + CurPtr, "PE\0\0", 4) != 0) {
|
||||
ec = object_error::parse_failed;
|
||||
EC = object_error::parse_failed;
|
||||
return;
|
||||
}
|
||||
CurPtr += 4; // Skip the PE magic bytes.
|
||||
hasPEHeader = true;
|
||||
HasPEHeader = true;
|
||||
}
|
||||
|
||||
if ((ec = getObject(COFFHeader, Data, base() + CurPtr)))
|
||||
if ((EC = getObject(COFFHeader, Data, base() + CurPtr)))
|
||||
return;
|
||||
CurPtr += sizeof(coff_file_header);
|
||||
|
||||
if (hasPEHeader) {
|
||||
if ((ec = getObject(PE32Header, Data, base() + CurPtr)))
|
||||
if (HasPEHeader) {
|
||||
if ((EC = getObject(PE32Header, Data, base() + CurPtr)))
|
||||
return;
|
||||
if (PE32Header->Magic != 0x10b) {
|
||||
// We only support PE32. If this is PE32 (not PE32+), the magic byte
|
||||
@ -518,46 +511,46 @@ COFFObjectFile::COFFObjectFile(MemoryBuffer *Object, error_code &ec)
|
||||
// header in this file.
|
||||
PE32Header = 0;
|
||||
} else if (PE32Header->NumberOfRvaAndSize > 0) {
|
||||
const uint8_t *addr = base() + CurPtr + sizeof(pe32_header);
|
||||
const uint8_t *Addr = base() + CurPtr + sizeof(pe32_header);
|
||||
uint64_t size = sizeof(data_directory) * PE32Header->NumberOfRvaAndSize;
|
||||
if ((ec = getObject(DataDirectory, Data, addr, size)))
|
||||
if ((EC = getObject(DataDirectory, Data, Addr, size)))
|
||||
return;
|
||||
}
|
||||
CurPtr += COFFHeader->SizeOfOptionalHeader;
|
||||
}
|
||||
|
||||
if (!COFFHeader->isImportLibrary())
|
||||
if ((ec = getObject(SectionTable, Data, base() + CurPtr,
|
||||
if ((EC = getObject(SectionTable, Data, base() + CurPtr,
|
||||
COFFHeader->NumberOfSections * sizeof(coff_section))))
|
||||
return;
|
||||
|
||||
// Initialize the pointer to the symbol table.
|
||||
if (COFFHeader->PointerToSymbolTable != 0)
|
||||
if ((ec = initSymbolTablePtr()))
|
||||
if ((EC = initSymbolTablePtr()))
|
||||
return;
|
||||
|
||||
// Initialize the pointer to the beginning of the import table.
|
||||
if ((ec = initImportTablePtr()))
|
||||
if ((EC = initImportTablePtr()))
|
||||
return;
|
||||
|
||||
// Initialize the pointer to the export table.
|
||||
if ((ec = initExportTablePtr()))
|
||||
if ((EC = initExportTablePtr()))
|
||||
return;
|
||||
|
||||
ec = object_error::success;
|
||||
EC = object_error::success;
|
||||
}
|
||||
|
||||
symbol_iterator COFFObjectFile::begin_symbols() const {
|
||||
DataRefImpl ret;
|
||||
ret.p = reinterpret_cast<uintptr_t>(SymbolTable);
|
||||
return symbol_iterator(SymbolRef(ret, this));
|
||||
DataRefImpl Ret;
|
||||
Ret.p = reinterpret_cast<uintptr_t>(SymbolTable);
|
||||
return symbol_iterator(SymbolRef(Ret, this));
|
||||
}
|
||||
|
||||
symbol_iterator COFFObjectFile::end_symbols() const {
|
||||
// The symbol table ends where the string table begins.
|
||||
DataRefImpl ret;
|
||||
ret.p = reinterpret_cast<uintptr_t>(StringTable);
|
||||
return symbol_iterator(SymbolRef(ret, this));
|
||||
DataRefImpl Ret;
|
||||
Ret.p = reinterpret_cast<uintptr_t>(StringTable);
|
||||
return symbol_iterator(SymbolRef(Ret, this));
|
||||
}
|
||||
|
||||
symbol_iterator COFFObjectFile::begin_dynamic_symbols() const {
|
||||
@ -603,23 +596,23 @@ export_directory_iterator COFFObjectFile::export_directory_begin() const {
|
||||
export_directory_iterator COFFObjectFile::export_directory_end() const {
|
||||
if (ExportDirectory == 0)
|
||||
return export_directory_iterator(ExportDirectoryEntryRef(0, 0, this));
|
||||
ExportDirectoryEntryRef ref(ExportDirectory,
|
||||
ExportDirectoryEntryRef Ref(ExportDirectory,
|
||||
ExportDirectory->AddressTableEntries, this);
|
||||
return export_directory_iterator(ref);
|
||||
return export_directory_iterator(Ref);
|
||||
}
|
||||
|
||||
section_iterator COFFObjectFile::begin_sections() const {
|
||||
DataRefImpl ret;
|
||||
ret.p = reinterpret_cast<uintptr_t>(SectionTable);
|
||||
return section_iterator(SectionRef(ret, this));
|
||||
DataRefImpl Ret;
|
||||
Ret.p = reinterpret_cast<uintptr_t>(SectionTable);
|
||||
return section_iterator(SectionRef(Ret, this));
|
||||
}
|
||||
|
||||
section_iterator COFFObjectFile::end_sections() const {
|
||||
DataRefImpl ret;
|
||||
int numSections = COFFHeader->isImportLibrary()
|
||||
DataRefImpl Ret;
|
||||
int NumSections = COFFHeader->isImportLibrary()
|
||||
? 0 : COFFHeader->NumberOfSections;
|
||||
ret.p = reinterpret_cast<uintptr_t>(SectionTable + numSections);
|
||||
return section_iterator(SectionRef(ret, this));
|
||||
Ret.p = reinterpret_cast<uintptr_t>(SectionTable + NumSections);
|
||||
return section_iterator(SectionRef(Ret, this));
|
||||
}
|
||||
|
||||
uint8_t COFFObjectFile::getBytesInAddress() const {
|
||||
@ -664,89 +657,89 @@ error_code COFFObjectFile::getPE32Header(const pe32_header *&Res) const {
|
||||
return object_error::success;
|
||||
}
|
||||
|
||||
error_code COFFObjectFile::getDataDirectory(uint32_t index,
|
||||
error_code COFFObjectFile::getDataDirectory(uint32_t Index,
|
||||
const data_directory *&Res) const {
|
||||
// Error if if there's no data directory or the index is out of range.
|
||||
if (!DataDirectory || index > PE32Header->NumberOfRvaAndSize)
|
||||
if (!DataDirectory || Index > PE32Header->NumberOfRvaAndSize)
|
||||
return object_error::parse_failed;
|
||||
Res = &DataDirectory[index];
|
||||
Res = &DataDirectory[Index];
|
||||
return object_error::success;
|
||||
}
|
||||
|
||||
error_code COFFObjectFile::getSection(int32_t index,
|
||||
error_code COFFObjectFile::getSection(int32_t Index,
|
||||
const coff_section *&Result) const {
|
||||
// Check for special index values.
|
||||
if (index == COFF::IMAGE_SYM_UNDEFINED ||
|
||||
index == COFF::IMAGE_SYM_ABSOLUTE ||
|
||||
index == COFF::IMAGE_SYM_DEBUG)
|
||||
if (Index == COFF::IMAGE_SYM_UNDEFINED ||
|
||||
Index == COFF::IMAGE_SYM_ABSOLUTE ||
|
||||
Index == COFF::IMAGE_SYM_DEBUG)
|
||||
Result = NULL;
|
||||
else if (index > 0 && index <= COFFHeader->NumberOfSections)
|
||||
else if (Index > 0 && Index <= COFFHeader->NumberOfSections)
|
||||
// We already verified the section table data, so no need to check again.
|
||||
Result = SectionTable + (index - 1);
|
||||
Result = SectionTable + (Index - 1);
|
||||
else
|
||||
return object_error::parse_failed;
|
||||
return object_error::success;
|
||||
}
|
||||
|
||||
error_code COFFObjectFile::getString(uint32_t offset,
|
||||
error_code COFFObjectFile::getString(uint32_t Offset,
|
||||
StringRef &Result) const {
|
||||
if (StringTableSize <= 4)
|
||||
// Tried to get a string from an empty string table.
|
||||
return object_error::parse_failed;
|
||||
if (offset >= StringTableSize)
|
||||
if (Offset >= StringTableSize)
|
||||
return object_error::unexpected_eof;
|
||||
Result = StringRef(StringTable + offset);
|
||||
Result = StringRef(StringTable + Offset);
|
||||
return object_error::success;
|
||||
}
|
||||
|
||||
error_code COFFObjectFile::getSymbol(uint32_t index,
|
||||
error_code COFFObjectFile::getSymbol(uint32_t Index,
|
||||
const coff_symbol *&Result) const {
|
||||
if (index < COFFHeader->NumberOfSymbols)
|
||||
Result = SymbolTable + index;
|
||||
if (Index < COFFHeader->NumberOfSymbols)
|
||||
Result = SymbolTable + Index;
|
||||
else
|
||||
return object_error::parse_failed;
|
||||
return object_error::success;
|
||||
}
|
||||
|
||||
error_code COFFObjectFile::getSymbolName(const coff_symbol *symbol,
|
||||
error_code COFFObjectFile::getSymbolName(const coff_symbol *Symbol,
|
||||
StringRef &Res) const {
|
||||
// Check for string table entry. First 4 bytes are 0.
|
||||
if (symbol->Name.Offset.Zeroes == 0) {
|
||||
uint32_t Offset = symbol->Name.Offset.Offset;
|
||||
if (error_code ec = getString(Offset, Res))
|
||||
return ec;
|
||||
if (Symbol->Name.Offset.Zeroes == 0) {
|
||||
uint32_t Offset = Symbol->Name.Offset.Offset;
|
||||
if (error_code EC = getString(Offset, Res))
|
||||
return EC;
|
||||
return object_error::success;
|
||||
}
|
||||
|
||||
if (symbol->Name.ShortName[7] == 0)
|
||||
if (Symbol->Name.ShortName[7] == 0)
|
||||
// Null terminated, let ::strlen figure out the length.
|
||||
Res = StringRef(symbol->Name.ShortName);
|
||||
Res = StringRef(Symbol->Name.ShortName);
|
||||
else
|
||||
// Not null terminated, use all 8 bytes.
|
||||
Res = StringRef(symbol->Name.ShortName, 8);
|
||||
Res = StringRef(Symbol->Name.ShortName, 8);
|
||||
return object_error::success;
|
||||
}
|
||||
|
||||
ArrayRef<uint8_t> COFFObjectFile::getSymbolAuxData(
|
||||
const coff_symbol *symbol) const {
|
||||
const uint8_t *aux = NULL;
|
||||
const coff_symbol *Symbol) const {
|
||||
const uint8_t *Aux = NULL;
|
||||
|
||||
if ( symbol->NumberOfAuxSymbols > 0 ) {
|
||||
if (Symbol->NumberOfAuxSymbols > 0) {
|
||||
// AUX data comes immediately after the symbol in COFF
|
||||
aux = reinterpret_cast<const uint8_t *>(symbol + 1);
|
||||
Aux = reinterpret_cast<const uint8_t *>(Symbol + 1);
|
||||
# ifndef NDEBUG
|
||||
// Verify that the aux symbol points to a valid entry in the symbol table.
|
||||
uintptr_t offset = uintptr_t(aux) - uintptr_t(base());
|
||||
if (offset < COFFHeader->PointerToSymbolTable
|
||||
|| offset >= COFFHeader->PointerToSymbolTable
|
||||
// Verify that the Aux symbol points to a valid entry in the symbol table.
|
||||
uintptr_t Offset = uintptr_t(Aux) - uintptr_t(base());
|
||||
if (Offset < COFFHeader->PointerToSymbolTable
|
||||
|| Offset >= COFFHeader->PointerToSymbolTable
|
||||
+ (COFFHeader->NumberOfSymbols * sizeof(coff_symbol)))
|
||||
report_fatal_error("Aux Symbol data was outside of symbol table.");
|
||||
|
||||
assert((offset - COFFHeader->PointerToSymbolTable) % sizeof(coff_symbol)
|
||||
assert((Offset - COFFHeader->PointerToSymbolTable) % sizeof(coff_symbol)
|
||||
== 0 && "Aux Symbol data did not point to the beginning of a symbol");
|
||||
# endif
|
||||
}
|
||||
return ArrayRef<uint8_t>(aux, symbol->NumberOfAuxSymbols * sizeof(coff_symbol));
|
||||
return ArrayRef<uint8_t>(Aux, Symbol->NumberOfAuxSymbols * sizeof(coff_symbol));
|
||||
}
|
||||
|
||||
error_code COFFObjectFile::getSectionName(const coff_section *Sec,
|
||||
@ -764,8 +757,8 @@ error_code COFFObjectFile::getSectionName(const coff_section *Sec,
|
||||
uint32_t Offset;
|
||||
if (Name.substr(1).getAsInteger(10, Offset))
|
||||
return object_error::parse_failed;
|
||||
if (error_code ec = getString(Offset, Name))
|
||||
return ec;
|
||||
if (error_code EC = getString(Offset, Name))
|
||||
return EC;
|
||||
}
|
||||
|
||||
Res = Name;
|
||||
@ -789,6 +782,7 @@ error_code COFFObjectFile::getSectionContents(const coff_section *Sec,
|
||||
const coff_relocation *COFFObjectFile::toRel(DataRefImpl Rel) const {
|
||||
return reinterpret_cast<const coff_relocation*>(Rel.p);
|
||||
}
|
||||
|
||||
error_code COFFObjectFile::getRelocationNext(DataRefImpl Rel,
|
||||
RelocationRef &Res) const {
|
||||
Rel.p = reinterpret_cast<uintptr_t>(
|
||||
@ -796,21 +790,25 @@ error_code COFFObjectFile::getRelocationNext(DataRefImpl Rel,
|
||||
Res = RelocationRef(Rel, this);
|
||||
return object_error::success;
|
||||
}
|
||||
|
||||
error_code COFFObjectFile::getRelocationAddress(DataRefImpl Rel,
|
||||
uint64_t &Res) const {
|
||||
report_fatal_error("getRelocationAddress not implemented in COFFObjectFile");
|
||||
}
|
||||
|
||||
error_code COFFObjectFile::getRelocationOffset(DataRefImpl Rel,
|
||||
uint64_t &Res) const {
|
||||
Res = toRel(Rel)->VirtualAddress;
|
||||
return object_error::success;
|
||||
}
|
||||
|
||||
symbol_iterator COFFObjectFile::getRelocationSymbol(DataRefImpl Rel) const {
|
||||
const coff_relocation* R = toRel(Rel);
|
||||
DataRefImpl Symb;
|
||||
Symb.p = reinterpret_cast<uintptr_t>(SymbolTable + R->SymbolTableIndex);
|
||||
return symbol_iterator(SymbolRef(Symb, this));
|
||||
DataRefImpl Ref;
|
||||
Ref.p = reinterpret_cast<uintptr_t>(SymbolTable + R->SymbolTableIndex);
|
||||
return symbol_iterator(SymbolRef(Ref, this));
|
||||
}
|
||||
|
||||
error_code COFFObjectFile::getRelocationType(DataRefImpl Rel,
|
||||
uint64_t &Res) const {
|
||||
const coff_relocation* R = toRel(Rel);
|
||||
@ -832,15 +830,15 @@ const coff_relocation *COFFObjectFile::getCOFFRelocation(
|
||||
}
|
||||
|
||||
#define LLVM_COFF_SWITCH_RELOC_TYPE_NAME(enum) \
|
||||
case COFF::enum: res = #enum; break;
|
||||
case COFF::enum: Res = #enum; break;
|
||||
|
||||
error_code COFFObjectFile::getRelocationTypeName(DataRefImpl Rel,
|
||||
SmallVectorImpl<char> &Result) const {
|
||||
const coff_relocation *reloc = toRel(Rel);
|
||||
StringRef res;
|
||||
const coff_relocation *Reloc = toRel(Rel);
|
||||
StringRef Res;
|
||||
switch (COFFHeader->Machine) {
|
||||
case COFF::IMAGE_FILE_MACHINE_AMD64:
|
||||
switch (reloc->Type) {
|
||||
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);
|
||||
@ -859,11 +857,11 @@ error_code COFFObjectFile::getRelocationTypeName(DataRefImpl Rel,
|
||||
LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_PAIR);
|
||||
LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SSPAN32);
|
||||
default:
|
||||
res = "Unknown";
|
||||
Res = "Unknown";
|
||||
}
|
||||
break;
|
||||
case COFF::IMAGE_FILE_MACHINE_I386:
|
||||
switch (reloc->Type) {
|
||||
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);
|
||||
@ -876,13 +874,13 @@ error_code COFFObjectFile::getRelocationTypeName(DataRefImpl Rel,
|
||||
LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_SECREL7);
|
||||
LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_REL32);
|
||||
default:
|
||||
res = "Unknown";
|
||||
Res = "Unknown";
|
||||
}
|
||||
break;
|
||||
default:
|
||||
res = "Unknown";
|
||||
Res = "Unknown";
|
||||
}
|
||||
Result.append(res.begin(), res.end());
|
||||
Result.append(Res.begin(), Res.end());
|
||||
return object_error::success;
|
||||
}
|
||||
|
||||
@ -890,14 +888,14 @@ error_code COFFObjectFile::getRelocationTypeName(DataRefImpl Rel,
|
||||
|
||||
error_code COFFObjectFile::getRelocationValueString(DataRefImpl Rel,
|
||||
SmallVectorImpl<char> &Result) const {
|
||||
const coff_relocation *reloc = toRel(Rel);
|
||||
const coff_symbol *symb = 0;
|
||||
if (error_code ec = getSymbol(reloc->SymbolTableIndex, symb)) return ec;
|
||||
DataRefImpl sym;
|
||||
sym.p = reinterpret_cast<uintptr_t>(symb);
|
||||
StringRef symname;
|
||||
if (error_code ec = getSymbolName(sym, symname)) return ec;
|
||||
Result.append(symname.begin(), symname.end());
|
||||
const coff_relocation *Reloc = toRel(Rel);
|
||||
const coff_symbol *Symb = 0;
|
||||
if (error_code EC = getSymbol(Reloc->SymbolTableIndex, Symb)) return EC;
|
||||
DataRefImpl Sym;
|
||||
Sym.p = reinterpret_cast<uintptr_t>(Symb);
|
||||
StringRef SymName;
|
||||
if (error_code EC = getSymbolName(Sym, SymName)) return EC;
|
||||
Result.append(SymName.begin(), SymName.end());
|
||||
return object_error::success;
|
||||
}
|
||||
|
||||
@ -1004,7 +1002,7 @@ error_code ExportDirectoryEntryRef::getName(StringRef &Result) const {
|
||||
|
||||
namespace llvm {
|
||||
ObjectFile *ObjectFile::createCOFFObjectFile(MemoryBuffer *Object) {
|
||||
error_code ec;
|
||||
return new COFFObjectFile(Object, ec);
|
||||
error_code EC;
|
||||
return new COFFObjectFile(Object, EC);
|
||||
}
|
||||
} // end namespace llvm
|
||||
|
||||
Loading…
Reference in New Issue
Block a user