ElfSegment*
CoreFile::_FindAreaSegment(uint64 address) const
{
int32 count = fElfFile.CountSegments();
for (int32 i = 0; i < count; i++) {
ElfSegment* segment = fElfFile.SegmentAt(i);
if (segment->Type() == PT_LOAD && segment->LoadAddress() == address)
return segment;
}
return NULL;
}
status_t
CoreFile::CreateSymbolLookup(const CoreFileImageInfo* imageInfo,
ElfSymbolLookup*& _lookup)
{
// get the needed data
uint64 textDelta = imageInfo->TextDelta();
uint64 symbolTable = imageInfo->SymbolTable();
uint64 symbolHash = imageInfo->SymbolHash();
uint64 stringTable = imageInfo->StringTable();
CoreFileAreaInfo* textArea = imageInfo->TextArea();
ElfSegment* textSegment = textArea != NULL ? textArea->Segment() : NULL;
if (symbolTable == 0 || symbolHash == 0 || stringTable == 0
|| textSegment == NULL) {
return B_UNSUPPORTED;
}
// create a data source for the text segment
ElfSymbolLookupSource* source = fElfFile.CreateSymbolLookupSource(
textSegment->FileOffset(), textSegment->FileSize(),
textSegment->LoadAddress());
if (source == NULL)
return B_NO_MEMORY;
// get the symbol table entry size
// TODO: This is not actually correct, since at least theoretically the
// entry size may differ (cf. DT_SYMENT in the dynamic segment).
size_t symbolTableEntrySize = fElfFile.Is64Bit()
? sizeof(ElfClass64::Sym) : sizeof(ElfClass32::Sym);
// create the symbol lookup
return ElfSymbolLookup::Create(source, symbolTable, symbolHash, stringTable,
ElfSymbolLookup::kGetSymbolCountFromHash, symbolTableEntrySize,
textDelta, fElfFile.Is64Bit(), fElfFile.IsByteOrderSwapped(), true,
_lookup);
}