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Handle relocations that don't point to symbols.

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In ELF (as in MachO), not all relocations point to symbols. Represent this
properly by using a symbol_iterator instead of a SymbolRef. Update llvm-readobj
ELF's dumper to handle relocatios without symbols.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183284 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2013-06-05 01:33:53 +00:00
parent cc5a6cb0a2
commit 6c1202c459
19 changed files with 62 additions and 73 deletions
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13
lib/Object/MachOObjectFile.cpp
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@ -869,15 +869,13 @@ error_code MachOObjectFile::getRelocationOffset(DataRefImpl Rel,
return object_error::success;
}
error_code
MachOObjectFile::getRelocationSymbol(DataRefImpl Rel, SymbolRef &Res) const {
symbol_iterator
MachOObjectFile::getRelocationSymbol(DataRefImpl Rel) const {
macho::RelocationEntry RE = getRelocation(Rel);
uint32_t SymbolIdx = getPlainRelocationSymbolNum(RE);
bool isExtern = getPlainRelocationExternal(RE);
if (!isExtern) {
Res = *end_symbols();
return object_error::success;
}
if (!isExtern)
return end_symbols();
macho::SymtabLoadCommand S = getSymtabLoadCommand();
unsigned SymbolTableEntrySize = is64Bit() ?
@ -886,8 +884,7 @@ MachOObjectFile::getRelocationSymbol(DataRefImpl Rel, SymbolRef &Res) const {
uint64_t Offset = S.SymbolTableOffset + SymbolIdx * SymbolTableEntrySize;
DataRefImpl Sym;
Sym.p = reinterpret_cast<uintptr_t>(getPtr(this, Offset));
Res = SymbolRef(Sym, this);
return object_error::success;
return symbol_iterator(SymbolRef(Sym, this));
}
error_code MachOObjectFile::getRelocationType(DataRefImpl Rel,