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[COFF] Remove a duplicate import_directory_table_entry definition

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We had import_directory_table_entry and
coff_import_directory_table_entry, remove one.  Also, factor out the
logic which determins if a descriptor is a terminator.

llvm-svn: 277296
This commit is contained in:
David Majnemer 2016-07-31 19:25:21 +00:00
parent 5937e5d842
commit 94420225fa
3 changed files with 14 additions and 18 deletions
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22
include/llvm/Object/COFF.h
View File

@ -161,14 +161,6 @@ struct data_directory {
support::ulittle32_t Size;
};
struct import_directory_table_entry {
support::ulittle32_t ImportLookupTableRVA;
support::ulittle32_t TimeDateStamp;
support::ulittle32_t ForwarderChain;
support::ulittle32_t NameRVA;
support::ulittle32_t ImportAddressTableRVA;
};
struct debug_directory {
support::ulittle32_t Characteristics;
support::ulittle32_t TimeDateStamp;
@ -534,6 +526,10 @@ struct coff_import_directory_table_entry {
support::ulittle32_t ForwarderChain;
support::ulittle32_t NameRVA;
support::ulittle32_t ImportAddressTableRVA;
bool isNull() const {
return ImportLookupTableRVA == 0 && TimeDateStamp == 0 &&
ForwarderChain == 0 && NameRVA == 0 && ImportAddressTableRVA == 0;
}
};
template <typename IntTy>
@ -633,7 +629,7 @@ private:
const coff_symbol32 *SymbolTable32;
const char *StringTable;
uint32_t StringTableSize;
const import_directory_table_entry *ImportDirectory;
const coff_import_directory_table_entry *ImportDirectory;
const delay_import_directory_table_entry *DelayImportDirectory;
uint32_t NumberOfDelayImportDirectory;
const export_directory_table_entry *ExportDirectory;
@ -892,8 +888,8 @@ public:
class ImportDirectoryEntryRef {
public:
ImportDirectoryEntryRef() : OwningObject(nullptr) {}
ImportDirectoryEntryRef(const import_directory_table_entry *Table, uint32_t I,
const COFFObjectFile *Owner)
ImportDirectoryEntryRef(const coff_import_directory_table_entry *Table,
uint32_t I, const COFFObjectFile *Owner)
: ImportTable(Table), Index(I), OwningObject(Owner) {}
bool operator==(const ImportDirectoryEntryRef &Other) const;
@ -908,10 +904,10 @@ public:
std::error_code getImportAddressTableRVA(uint32_t &Result) const;
std::error_code
getImportTableEntry(const import_directory_table_entry *&Result) const;
getImportTableEntry(const coff_import_directory_table_entry *&Result) const;
private:
const import_directory_table_entry *ImportTable;
const coff_import_directory_table_entry *ImportTable;
uint32_t Index;
const COFFObjectFile *OwningObject;
};

8
lib/Object/COFFObjectFile.cpp
View File

@ -538,7 +538,7 @@ std::error_code COFFObjectFile::initImportTablePtr() {
if (std::error_code EC = checkOffset(Data, IntPtr, DataEntry->Size))
return EC;
ImportDirectory = reinterpret_cast<
const import_directory_table_entry *>(IntPtr);
const coff_import_directory_table_entry *>(IntPtr);
return std::error_code();
}
@ -772,7 +772,7 @@ basic_symbol_iterator COFFObjectFile::symbol_end_impl() const {
import_directory_iterator COFFObjectFile::import_directory_begin() const {
if (!ImportDirectory)
return import_directory_end();
if (ImportDirectory[0].ImportLookupTableRVA == 0)
if (ImportDirectory->isNull())
return import_directory_end();
return import_directory_iterator(
ImportDirectoryEntryRef(ImportDirectory, 0, this));
@ -1201,14 +1201,14 @@ operator==(const ImportDirectoryEntryRef &Other) const {
void ImportDirectoryEntryRef::moveNext() {
++Index;
if (ImportTable[Index].ImportLookupTableRVA == 0) {
if (ImportTable[Index].isNull()) {
Index = -1;
ImportTable = nullptr;
}
}
std::error_code ImportDirectoryEntryRef::getImportTableEntry(
const import_directory_table_entry *&Result) const {
const coff_import_directory_table_entry *&Result) const {
return getObject(Result, OwningObject->Data, ImportTable + Index);
}

2
tools/llvm-objdump/COFFDump.cpp
View File

@ -353,7 +353,7 @@ static void printImportTables(const COFFObjectFile *Obj) {
return;
outs() << "The Import Tables:\n";
for (const ImportDirectoryEntryRef &DirRef : Obj->import_directories()) {
const import_directory_table_entry *Dir;
const coff_import_directory_table_entry *Dir;
StringRef Name;
if (DirRef.getImportTableEntry(Dir)) return;
if (DirRef.getName(Name)) return;