[PATCH] D12027: [lld][LinkerScript] Consider order of headers in PHDRS command

[Denis Protivensky via llvm-commits]

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

Sort segments according to their order in PHDRS command.
Handle first load segment containing ELF and program headers.
Discard ELF and program headers if not set by PT_PHDR or first PT_LOAD segment in PHDRS command.

Test cases are included.

http://reviews.llvm.org/D12027

Files:
  include/lld/Core/Error.h
  include/lld/ReaderWriter/LinkerScript.h
  lib/Core/Error.cpp
  lib/ReaderWriter/ELF/HeaderChunks.h
  lib/ReaderWriter/ELF/OutputELFWriter.cpp
  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-custom-none.test
  test/elf/linkerscript/phdrs-custom-order.test
  test/elf/linkerscript/phdrs-different.test
  test/elf/linkerscript/phdrs-dup-name.test
  test/elf/linkerscript/phdrs-extra-program.test
  test/elf/linkerscript/phdrs-flags.test
  test/elf/linkerscript/phdrs-has-program.test
  test/elf/linkerscript/phdrs-load-empty.test
  test/elf/linkerscript/phdrs-load-filehdr.test
  test/elf/linkerscript/phdrs-load-phdrs.test
  test/elf/linkerscript/phdrs-misplaced-program.test
  test/elf/linkerscript/phdrs-no-program.test
  test/elf/linkerscript/phdrs-one-none.test
  test/elf/linkerscript/phdrs-program-good-phdrs.test
  test/elf/linkerscript/phdrs-same-flags.test
  test/elf/linkerscript/phdrs-same.test
  test/elf/linkerscript/sections-dup-name.test

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