[PATCH] D26161: '.' is not absolute

[Rafael Ávila de Espíndola via llvm-commits]

rafael created this revision.
rafael added reviewers: ruiu, evgeny777, phosek.
rafael added a subscriber: llvm-commits.

With this patch we keep track of the fact that . is a position in the file and therefore not absolute. This allow us to compute relative relocations that involve symbol that are defined in linker scripts with '.'.

This fixes https://llvm.org/bugs/show_bug.cgi?id=30406

There is still more work to track absoluteness over the various expressions, but this should unblock linking the EFI bootloader.


https://reviews.llvm.org/D26161

Files:
  ELF/LinkerScript.cpp
  ELF/LinkerScript.h
  test/ELF/linkerscript/dot-is-not-abs.s
  test/ELF/linkerscript/symbol-conflict.s
  test/ELF/linkerscript/symbols.s

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