//===----------------------------------------------------------------------===//
#include "llvm/Object/COFF.h"
+#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/ADT/Triple.h"
return getSymbolName(symb, Result);
}
-error_code COFFObjectFile::getSymbolOffset(DataRefImpl Symb,
+error_code COFFObjectFile::getSymbolFileOffset(DataRefImpl Symb,
uint64_t &Result) const {
const coff_symbol *symb = toSymb(Symb);
const coff_section *Section = NULL;
if (Type == 'U' || Type == 'w')
Result = UnknownAddressOrSize;
else if (Section)
- Result = Section->VirtualAddress + symb->Value;
+ Result = Section->PointerToRawData + symb->Value;
else
Result = symb->Value;
return object_error::success;
if (Type == 'U' || Type == 'w')
Result = UnknownAddressOrSize;
else if (Section)
- Result = reinterpret_cast<uintptr_t>(base() +
- Section->PointerToRawData +
- symb->Value);
+ Result = Section->VirtualAddress + symb->Value;
else
- Result = reinterpret_cast<uintptr_t>(base() + symb->Value);
+ Result = symb->Value;
return object_error::success;
}
Result = SymbolRef::ST_Other;
if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
symb->SectionNumber == COFF::IMAGE_SYM_UNDEFINED) {
- Result = SymbolRef::ST_External;
+ Result = SymbolRef::ST_Unknown;
} else {
- if (symb->Type.ComplexType == COFF::IMAGE_SYM_DTYPE_FUNCTION) {
+ if (symb->getComplexType() == COFF::IMAGE_SYM_DTYPE_FUNCTION) {
Result = SymbolRef::ST_Function;
} else {
char Type;
return object_error::success;
}
-error_code COFFObjectFile::isSymbolGlobal(DataRefImpl Symb,
- bool &Result) const {
+error_code COFFObjectFile::getSymbolFlags(DataRefImpl Symb,
+ uint32_t &Result) const {
const coff_symbol *symb = toSymb(Symb);
- Result = (symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL);
- return object_error::success;
-}
+ Result = SymbolRef::SF_None;
+
+ // TODO: Correctly set SF_FormatSpecific, SF_ThreadLocal, SF_Common
+
+ if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
+ symb->SectionNumber == COFF::IMAGE_SYM_UNDEFINED)
+ Result |= SymbolRef::SF_Undefined;
+
+ // TODO: This are certainly too restrictive.
+ if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL)
+ Result |= SymbolRef::SF_Global;
+
+ if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL)
+ Result |= SymbolRef::SF_Weak;
+
+ if (symb->SectionNumber == COFF::IMAGE_SYM_ABSOLUTE)
+ Result |= SymbolRef::SF_Absolute;
-error_code COFFObjectFile::isSymbolWeak(DataRefImpl Symb,
- bool &Result) const {
- const coff_symbol *symb = toSymb(Symb);
- Result = (symb->StorageClass == COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL);
return object_error::success;
}
if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL) {
Result = 'w';
return object_error::success; // Don't do ::toupper.
- } else
+ } else if (symb->Value != 0) // Check for common symbols.
+ ret = 'c';
+ else
ret = 'u';
break;
case COFF::IMAGE_SYM_ABSOLUTE:
return object_error::success;
}
-error_code COFFObjectFile::isSymbolInternal(DataRefImpl Symb,
- bool &Result) const {
- Result = false;
+error_code COFFObjectFile::getSymbolSection(DataRefImpl Symb,
+ section_iterator &Result) const {
+ const coff_symbol *symb = toSymb(Symb);
+ if (symb->SectionNumber <= COFF::IMAGE_SYM_UNDEFINED)
+ Result = end_sections();
+ else {
+ const coff_section *sec = 0;
+ if (error_code ec = getSection(symb->SectionNumber, sec)) return ec;
+ DataRefImpl Sec;
+ Sec.p = reinterpret_cast<uintptr_t>(sec);
+ Result = section_iterator(SectionRef(Sec, this));
+ }
return object_error::success;
}
+error_code COFFObjectFile::getSymbolValue(DataRefImpl Symb,
+ uint64_t &Val) const {
+ report_fatal_error("getSymbolValue unimplemented in COFFObjectFile");
+}
+
error_code COFFObjectFile::getSectionNext(DataRefImpl Sec,
SectionRef &Result) const {
const coff_section *sec = toSec(Sec);
error_code COFFObjectFile::getSectionName(DataRefImpl Sec,
StringRef &Result) const {
const coff_section *sec = toSec(Sec);
- StringRef name;
- if (sec->Name[7] == 0)
- // Null terminated, let ::strlen figure out the length.
- name = sec->Name;
- else
- // Not null terminated, use all 8 bytes.
- name = StringRef(sec->Name, 8);
-
- // Check for string table entry. First byte is '/'.
- if (name[0] == '/') {
- uint32_t Offset;
- name.substr(1).getAsInteger(10, Offset);
- if (error_code ec = getString(Offset, name))
- return ec;
- }
-
- Result = name;
- return object_error::success;
+ return getSectionName(sec, Result);
}
error_code COFFObjectFile::getSectionAddress(DataRefImpl Sec,
error_code COFFObjectFile::getSectionContents(DataRefImpl Sec,
StringRef &Result) const {
const coff_section *sec = toSec(Sec);
- // The only thing that we need to verify is that the contents is contained
- // within the file bounds. We don't need to make sure it doesn't cover other
- // data, as there's nothing that says that is not allowed.
- uintptr_t con_start = uintptr_t(base()) + sec->PointerToRawData;
- uintptr_t con_end = con_start + sec->SizeOfRawData;
- if (con_end >= uintptr_t(Data->getBufferEnd()))
- return object_error::parse_failed;
- Result = StringRef(reinterpret_cast<const char*>(con_start),
- sec->SizeOfRawData);
- return object_error::success;
+ ArrayRef<uint8_t> Res;
+ error_code EC = getSectionContents(sec, Res);
+ Result = StringRef(reinterpret_cast<const char*>(Res.data()), Res.size());
+ return EC;
}
error_code COFFObjectFile::getSectionAlignment(DataRefImpl Sec,
return object_error::success;
}
+error_code COFFObjectFile::isSectionRequiredForExecution(DataRefImpl Sec,
+ bool &Result) const {
+ // FIXME: Unimplemented
+ Result = true;
+ return object_error::success;
+}
+
+error_code COFFObjectFile::isSectionVirtual(DataRefImpl Sec,
+ bool &Result) const {
+ const coff_section *sec = toSec(Sec);
+ Result = sec->Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA;
+ return object_error::success;
+}
+
+error_code COFFObjectFile::isSectionZeroInit(DataRefImpl Sec,
+ bool &Result) const {
+ // FIXME: Unimplemented.
+ Result = false;
+ return object_error::success;
+}
+
+error_code COFFObjectFile::isSectionReadOnlyData(DataRefImpl Sec,
+ bool &Result) const {
+ // FIXME: Unimplemented.
+ Result = false;
+ return object_error::success;
+}
+
error_code COFFObjectFile::sectionContainsSymbol(DataRefImpl Sec,
DataRefImpl Symb,
bool &Result) const {
const coff_section *sec = toSec(Sec);
const coff_symbol *symb = toSymb(Symb);
- const coff_section *symb_sec;
+ const coff_section *symb_sec = 0;
if (error_code ec = getSection(symb->SectionNumber, symb_sec)) return ec;
if (symb_sec == sec)
Result = true;
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
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
}
COFFObjectFile::COFFObjectFile(MemoryBuffer *Object, error_code &ec)
- : ObjectFile(Binary::isCOFF, Object, ec) {
+ : ObjectFile(Binary::ID_COFF, Object, ec)
+ , Header(0)
+ , SectionTable(0)
+ , SymbolTable(0)
+ , StringTable(0)
+ , StringTableSize(0) {
// Check that we at least have enough room for a header.
if (!checkSize(Data, ec, sizeof(coff_file_header))) return;
// 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;
- HeaderStart += *reinterpret_cast<const ulittle32_t *>(base() + 0x3c);
+ HeaderStart = *reinterpret_cast<const ulittle16_t *>(base() + 0x3c);
// Check the PE header. ("PE\0\0")
if (std::memcmp(base() + HeaderStart, "PE\0\0", 4) != 0) {
ec = object_error::parse_failed;
Header->NumberOfSections * sizeof(coff_section)))
return;
- SymbolTable =
- reinterpret_cast<const coff_symbol *>(base()
- + Header->PointerToSymbolTable);
- if (!checkAddr(Data, ec, uintptr_t(SymbolTable),
- Header->NumberOfSymbols * sizeof(coff_symbol)))
- return;
+ if (Header->PointerToSymbolTable != 0) {
+ SymbolTable =
+ reinterpret_cast<const coff_symbol *>(base()
+ + Header->PointerToSymbolTable);
+ if (!checkAddr(Data, ec, uintptr_t(SymbolTable),
+ Header->NumberOfSymbols * sizeof(coff_symbol)))
+ return;
- // Find string table.
- StringTable = reinterpret_cast<const char *>(base())
- + Header->PointerToSymbolTable
- + Header->NumberOfSymbols * sizeof(coff_symbol);
- if (!checkAddr(Data, ec, uintptr_t(StringTable), sizeof(ulittle32_t)))
- return;
+ // Find string table.
+ StringTable = reinterpret_cast<const char *>(base())
+ + Header->PointerToSymbolTable
+ + Header->NumberOfSymbols * sizeof(coff_symbol);
+ if (!checkAddr(Data, ec, uintptr_t(StringTable), sizeof(ulittle32_t)))
+ return;
- StringTableSize = *reinterpret_cast<const ulittle32_t *>(StringTable);
- if (!checkAddr(Data, ec, uintptr_t(StringTable), StringTableSize))
- return;
- // Check that the string table is null terminated if has any in it.
- if (StringTableSize < 4
- || (StringTableSize > 4 && StringTable[StringTableSize - 1] != 0)) {
- ec = object_error::parse_failed;
- return;
+ StringTableSize = *reinterpret_cast<const ulittle32_t *>(StringTable);
+ if (!checkAddr(Data, ec, uintptr_t(StringTable), StringTableSize))
+ return;
+ // Check that the string table is null terminated if has any in it.
+ if (StringTableSize < 4
+ || (StringTableSize > 4 && StringTable[StringTableSize - 1] != 0)) {
+ ec = object_error::parse_failed;
+ return;
+ }
}
ec = object_error::success;
symbol_iterator COFFObjectFile::begin_symbols() const {
DataRefImpl ret;
- std::memset(&ret, 0, sizeof(DataRefImpl));
ret.p = reinterpret_cast<intptr_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;
- std::memset(&ret, 0, sizeof(DataRefImpl));
ret.p = reinterpret_cast<intptr_t>(StringTable);
return symbol_iterator(SymbolRef(ret, this));
}
+symbol_iterator COFFObjectFile::begin_dynamic_symbols() const {
+ // TODO: implement
+ report_fatal_error("Dynamic symbols unimplemented in COFFObjectFile");
+}
+
+symbol_iterator COFFObjectFile::end_dynamic_symbols() const {
+ // TODO: implement
+ report_fatal_error("Dynamic symbols unimplemented in COFFObjectFile");
+}
+
+library_iterator COFFObjectFile::begin_libraries_needed() const {
+ // TODO: implement
+ report_fatal_error("Libraries needed unimplemented in COFFObjectFile");
+}
+
+library_iterator COFFObjectFile::end_libraries_needed() const {
+ // TODO: implement
+ report_fatal_error("Libraries needed unimplemented in COFFObjectFile");
+}
+
+StringRef COFFObjectFile::getLoadName() const {
+ // COFF does not have this field.
+ return "";
+}
+
+
section_iterator COFFObjectFile::begin_sections() const {
DataRefImpl ret;
- std::memset(&ret, 0, sizeof(DataRefImpl));
ret.p = reinterpret_cast<intptr_t>(SectionTable);
return section_iterator(SectionRef(ret, this));
}
section_iterator COFFObjectFile::end_sections() const {
DataRefImpl ret;
- std::memset(&ret, 0, sizeof(DataRefImpl));
ret.p = reinterpret_cast<intptr_t>(SectionTable + Header->NumberOfSections);
return section_iterator(SectionRef(ret, this));
}
error_code COFFObjectFile::getSymbol(uint32_t index,
const coff_symbol *&Result) const {
- if (index >= 0 && index < Header->NumberOfSymbols)
+ if (index < Header->NumberOfSymbols)
Result = SymbolTable + index;
else
return object_error::parse_failed;
return object_error::success;
}
+ArrayRef<uint8_t> COFFObjectFile::getSymbolAuxData(
+ const coff_symbol *symbol) const {
+ const uint8_t *aux = NULL;
+
+ if ( symbol->NumberOfAuxSymbols > 0 ) {
+ // AUX data comes immediately after the symbol in COFF
+ 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 < Header->PointerToSymbolTable
+ || offset >= Header->PointerToSymbolTable
+ + (Header->NumberOfSymbols * sizeof(coff_symbol)))
+ report_fatal_error("Aux Symbol data was outside of symbol table.");
+
+ assert((offset - Header->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));
+}
+
+error_code COFFObjectFile::getSectionName(const coff_section *Sec,
+ StringRef &Res) const {
+ StringRef Name;
+ if (Sec->Name[7] == 0)
+ // Null terminated, let ::strlen figure out the length.
+ Name = Sec->Name;
+ else
+ // Not null terminated, use all 8 bytes.
+ Name = StringRef(Sec->Name, 8);
+
+ // Check for string table entry. First byte is '/'.
+ if (Name[0] == '/') {
+ uint32_t Offset;
+ if (Name.substr(1).getAsInteger(10, Offset))
+ return object_error::parse_failed;
+ if (error_code ec = getString(Offset, Name))
+ return ec;
+ }
+
+ Res = Name;
+ return object_error::success;
+}
+
+error_code COFFObjectFile::getSectionContents(const coff_section *Sec,
+ ArrayRef<uint8_t> &Res) const {
+ // The only thing that we need to verify is that the contents is contained
+ // within the file bounds. We don't need to make sure it doesn't cover other
+ // data, as there's nothing that says that is not allowed.
+ uintptr_t ConStart = uintptr_t(base()) + Sec->PointerToRawData;
+ uintptr_t ConEnd = ConStart + Sec->SizeOfRawData;
+ if (ConEnd > uintptr_t(Data->getBufferEnd()))
+ return object_error::parse_failed;
+ Res = ArrayRef<uint8_t>(reinterpret_cast<const unsigned char*>(ConStart),
+ Sec->SizeOfRawData);
+ return object_error::success;
+}
+
const coff_relocation *COFFObjectFile::toRel(DataRefImpl Rel) const {
return reinterpret_cast<const coff_relocation*>(Rel.p);
}
Res = toRel(Rel)->VirtualAddress;
return object_error::success;
}
+error_code COFFObjectFile::getRelocationOffset(DataRefImpl Rel,
+ uint64_t &Res) const {
+ Res = toRel(Rel)->VirtualAddress;
+ return object_error::success;
+}
error_code COFFObjectFile::getRelocationSymbol(DataRefImpl Rel,
SymbolRef &Res) const {
const coff_relocation* R = toRel(Rel);
return object_error::success;
}
error_code COFFObjectFile::getRelocationType(DataRefImpl Rel,
- uint32_t &Res) const {
+ uint64_t &Res) const {
const coff_relocation* R = toRel(Rel);
Res = R->Type;
return object_error::success;
}
+const coff_section *COFFObjectFile::getCOFFSection(section_iterator &It) const {
+ return toSec(It->getRawDataRefImpl());
+}
+
+const coff_symbol *COFFObjectFile::getCOFFSymbol(symbol_iterator &It) const {
+ return toSymb(It->getRawDataRefImpl());
+}
+
+const coff_relocation *COFFObjectFile::getCOFFRelocation(
+ relocation_iterator &It) const {
+ return toRel(It->getRawDataRefImpl());
+}
+
+
#define LLVM_COFF_SWITCH_RELOC_TYPE_NAME(enum) \
case COFF::enum: res = #enum; break;
const coff_symbol *symb = 0;
if (error_code ec = getSymbol(reloc->SymbolTableIndex, symb)) return ec;
DataRefImpl sym;
- ::memset(&sym, 0, sizeof(sym));
sym.p = reinterpret_cast<uintptr_t>(symb);
StringRef symname;
if (error_code ec = getSymbolName(sym, symname)) return ec;
return object_error::success;
}
+error_code COFFObjectFile::getLibraryNext(DataRefImpl LibData,
+ LibraryRef &Result) const {
+ report_fatal_error("getLibraryNext not implemented in COFFObjectFile");
+}
+
+error_code COFFObjectFile::getLibraryPath(DataRefImpl LibData,
+ StringRef &Result) const {
+ report_fatal_error("getLibraryPath not implemented in COFFObjectFile");
+}
+
namespace llvm {
ObjectFile *ObjectFile::createCOFFObjectFile(MemoryBuffer *Object) {
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