[PATCH] D36138: [ELF] - Don't segfault when accessing location counter inside MEMORY command.

[George Rimar via llvm-commits]

>>This LGTM, but a nicer error message would be a good followup.
>>
>>We might be able to diagnose this in the parser and fuzz a bit more to
>>find if anything else gets here too soon.
>>
>>Cheers,
>>Rafael
>
>Thanks !
>
>Btw, one of more fuzzed scripts that fixed by this issue was
>"PHDRS {all PT_LOAD FILEHDR PHDRS FLAGS (DATA_SEGMENT_RELRO_END ..."
>
>I think we probably can change text from "unable to get location counter value"
>to more clear one like "location counter can not be accessed outside of SECTIONS."
>and that should work for all cases we expect.
>
>Rui, what do you think ? Are you ok to land it with/without change to error message text ?
>
>George.

Rui ? ping :)

George.