static error_code getSymbolNMTypeChar(COFFObjectFile &Obj, symbol_iterator I,
char &Result) {
const coff_symbol *symb = Obj.getCOFFSymbol(I);
StringRef name;
if (error_code ec = I->getName(name))
return ec;
char ret = StringSwitch<char>(name)
.StartsWith(".debug", 'N')
.StartsWith(".sxdata", 'N')
.Default('?');
if (ret != '?') {
Result = ret;
return object_error::success;
}
uint32_t Characteristics = 0;
if (symb->SectionNumber > 0) {
section_iterator SecI = Obj.end_sections();
if (error_code ec = I->getSection(SecI))
return ec;
const coff_section *Section = Obj.getCOFFSection(SecI);
Characteristics = Section->Characteristics;
}
switch (symb->SectionNumber) {
case COFF::IMAGE_SYM_UNDEFINED:
// Check storage classes.
if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL) {
Result = 'w';
return object_error::success; // Don't do ::toupper.
} else if (symb->Value != 0) // Check for common symbols.
ret = 'c';
else
ret = 'u';
break;
case COFF::IMAGE_SYM_ABSOLUTE:
ret = 'a';
break;
case COFF::IMAGE_SYM_DEBUG:
ret = 'n';
break;
default:
// Check section type.
if (Characteristics & COFF::IMAGE_SCN_CNT_CODE)
ret = 't';
else if (Characteristics & COFF::IMAGE_SCN_MEM_READ &&
~Characteristics & COFF::IMAGE_SCN_MEM_WRITE) // Read only.
ret = 'r';
else if (Characteristics & COFF::IMAGE_SCN_CNT_INITIALIZED_DATA)
ret = 'd';
else if (Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA)
ret = 'b';
else if (Characteristics & COFF::IMAGE_SCN_LNK_INFO)
ret = 'i';
// Check for section symbol.
else if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_STATIC &&
symb->Value == 0)
ret = 's';
}
if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL)
ret = ::toupper(static_cast<unsigned char>(ret));
Result = ret;
return object_error::success;
}
