[PATCH] D15896: ELF: Implement --wrap.

[Rui Ueyama via llvm-commits]

ruiu created this revision.
ruiu added a reviewer: grimar.
ruiu added a subscriber: llvm-commits.

In this patch, all symbols are resolved normally and then wrap options
are applied. Renaming is implemented by mutating `Body` pointers of
Symbols. (As a result, Symtab.find(SymbolName)->getName() may return
a string that's different from SymbolName, but that is by design.
I designed the symbol and the symbol table to allow this kind of
operations.)

http://reviews.llvm.org/D15896

Files:
  ELF/Driver.cpp
  ELF/Options.td
  ELF/SymbolTable.cpp
  ELF/SymbolTable.h
  ELF/Symbols.h
  test/ELF/Inputs/wrap.s
  test/ELF/wrap.s

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