[PATCH] D10918: [lld][ELF] Apply segments from linker scripts

[Denis Protivensky]

denis-protivensky created this revision.
denis-protivensky added a reviewer: Bigcheese.
denis-protivensky added a subscriber: llvm-commits.
denis-protivensky added a project: lld.

Put sections to segments according to linker scripts if available.
Rework the code of TargetLayout::assignSectionsToSegments so it operates on the given list of segments, which can be either read from linker scripts or constructed as before.
Consider flags set for segments through linker scripts.

NOTE: handling program header, as well as PHDRS and FILEHDR attributes of PHDRS command will be implemented separately.

http://reviews.llvm.org/D10918

Files:
  include/lld/ReaderWriter/LinkerScript.h
  lib/ReaderWriter/ELF/ARM/ARMTargetHandler.h
  lib/ReaderWriter/ELF/Hexagon/HexagonTargetHandler.h
  lib/ReaderWriter/ELF/Mips/MipsTargetLayout.cpp
  lib/ReaderWriter/ELF/Mips/MipsTargetLayout.h
  lib/ReaderWriter/ELF/SectionChunks.h
  lib/ReaderWriter/ELF/SegmentChunks.cpp
  lib/ReaderWriter/ELF/SegmentChunks.h
  lib/ReaderWriter/ELF/TargetLayout.cpp
  lib/ReaderWriter/ELF/TargetLayout.h
  lib/ReaderWriter/LinkerScript.cpp
  test/elf/linkerscript/phdrs-all-none.test
  test/elf/linkerscript/phdrs-different.test
  test/elf/linkerscript/phdrs-flags.test
  test/elf/linkerscript/phdrs-one-none.test
  test/elf/linkerscript/phdrs-same-flags.test
  test/elf/linkerscript/phdrs-same.test

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