[PATCH] D23609: [ELF] - Linkerscript: support VERSION command.

[George Rimar via llvm-commits]

grimar created this revision.
grimar added a reviewer: ruiu.
grimar added subscribers: llvm-commits, grimar, evgeny777, davide.
Herald added a subscriber: emaste.

From PR28926 description:

Symbol version information can be provided via the --version-script command line option, or can be embedded into a VERSION block in a linker script:

     VERSION { version-script-commands }

FreeBSD uses this for the Linux ABI vDSO support, presumably from the same use in the Linux kernel.

Reference: https://www.sourceware.org/binutils/docs/ld/VERSION.html#VERSION

Patch implements this feature.

https://reviews.llvm.org/D23609

Files:
  ELF/LinkerScript.cpp
  ELF/ScriptParser.h
  ELF/SymbolListFile.cpp
  ELF/SymbolListFile.h
  test/ELF/verdef.s

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