[PATCH] D18183: [ELF] - -pie/--pic-executable option implemented

[George Rimar via llvm-commits]

grimar created this revision.
grimar added reviewers: ruiu, rafael.
grimar added subscribers: llvm-commits, grimar.

-pie
 --pic-executable
       Create a position independent executable.  This is currently only
        supported on ELF platforms.  Position independent executables are
        similar to shared libraries in that they are relocated by the
        dynamic linker to the virtual address the OS chooses for them
        (which can vary between invocations).  Like normal dynamically
        linked executables they can be executed and symbols defined in the
        executable cannot be overridden by shared libraries.

This fixes the https://llvm.org/bugs/show_bug.cgi?id=26923

http://reviews.llvm.org/D18183

Files:
  ELF/Config.h
  ELF/Driver.cpp
  ELF/Options.td
  ELF/SymbolTable.cpp
  ELF/Target.cpp
  ELF/Target.h
  ELF/Writer.cpp
  test/ELF/driver.test
  test/ELF/dynsym-pie.s
  test/ELF/local-got-pie.s
  test/ELF/noplt-pie.s
  test/ELF/pie.s
  test/ELF/plt-i686.s
  test/ELF/relative-dynamic-reloc-pie.s
  test/ELF/undef.s

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