[llvm] r232020 - [Object/ELF] Add support for setVisibility()

[Davide Italiano]

Author: davide
Date: Thu Mar 12 02:48:25 2015
New Revision: 232020

URL: http://llvm.org/viewvc/llvm-project?rev=232020&view=rev
Log:
[Object/ELF] Add support for setVisibility()

This is a prerequisite to implement symbol visibility for ELF
in lld.

Differential Revision:	http://reviews.llvm.org/D8279

Modified:
    llvm/trunk/include/llvm/Object/ELFTypes.h

Modified: llvm/trunk/include/llvm/Object/ELFTypes.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Object/ELFTypes.h?rev=232020&r1=232019&r2=232020&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Object/ELFTypes.h (original)
+++ llvm/trunk/include/llvm/Object/ELFTypes.h Thu Mar 12 02:48:25 2015
@@ -189,7 +189,15 @@ struct Elf_Sym_Impl : Elf_Sym_Base<ELFT>
   }
 
   /// Access to the STV_xxx flag stored in the first two bits of st_other.
+  /// STV_DEFAULT: 0
+  /// STV_INTERNAL: 1
+  /// STV_HIDDEN: 2
+  /// STV_PROTECTED: 3
   unsigned char getVisibility() const { return st_other & 0x3; }
+  void setVisibility(unsigned char v) {
+    assert(v < 4 && "Invalid value for visibility");
+    st_other = (st_other & ~0x3) | v;
+  }
 };
 
 /// Elf_Versym: This is the structure of entries in the SHT_GNU_versym section