[llvm-commits] Patch to add way to access a symbol's st_value

[Sid Manning]

Hi,

I wanted to add an interface to allow direct access to a symbol's 
st_value.  I did notice that getSymbolAddress/getSymbolFileOffset can 
also return st_value in some cases.

When type symbol is common or undefined the returned Result from 
getSymbolAddress for example is UnknownAddressOrSize, however the ELF 
spec says that, "In relocatable files, st_value holds alignment 
constraints for a symbol whose section index is SHN_COMMON."  So I guess 
in this case the API name getSymbolAddress wouldn't make sense if it did 
return alignment.

The reason for adding this is that it addresses a comment in the 
ReaderELF.cpp patch regarding what an Atom's rawContent (Defined Atom's 
Data paramenter) should be.
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