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Update MachOObjectFile::getSymbolAddress so it returns UnknownAddressOrSize

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for undefined symbols.  Allowing llvm-nm to print spaces instead of 0’s for
the value of undefined symbols in Mach-O files.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209235 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Kevin Enderby
2014-05-20 20:32:18 +00:00
parent 50d4008b47
commit e3f74564ff
3 changed files with 15 additions and 7 deletions
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12
lib/Object/MachOObjectFile.cpp
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@ -472,10 +472,18 @@ error_code MachOObjectFile::getSymbolAddress(DataRefImpl Symb,
uint64_t &Res) const {
if (is64Bit()) {
MachO::nlist_64 Entry = getSymbol64TableEntry(Symb);
Res = Entry.n_value;
if ((Entry.n_type & MachO::N_TYPE) == MachO::N_UNDF &&
Entry.n_value == 0)
Res = UnknownAddressOrSize;
else
Res = Entry.n_value;
} else {
MachO::nlist Entry = getSymbolTableEntry(Symb);
Res = Entry.n_value;
if ((Entry.n_type & MachO::N_TYPE) == MachO::N_UNDF &&
Entry.n_value == 0)
Res = UnknownAddressOrSize;
else
Res = Entry.n_value;
}
return object_error::success;
}