[PATCH] D30163: [ELF] - Postpone evaluation of LMA offset.

[George Rimar via Phabricator via llvm-commits]

grimar created this revision.

Previously we evaluated the values of LMA incorrectly for next cases:

  .text : AT(ADDR(.text) - 0xffffffff80000000) { ... }
  .data : AT(ADDR(.data) - 0xffffffff80000000) { .. }
  .init.begin : AT(ADDR(.init.begin) - 0xffffffff80000000) { ... }

Reason was that we evaluated offset when VA was not assigned. For case above
we ended up with 3 loads that has similar LMA and it was incorrect.
That is critical for linux kernel.

Patch updates the offset after VA calculation. That fixes the issue I observing.


https://reviews.llvm.org/D30163

Files:
  ELF/LinkerScript.cpp
  ELF/LinkerScript.h
  test/ELF/linkerscript/at-addr.s

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