From f00677d74f1be5b4c7c73e1681a64c9062f4c7ee Mon Sep 17 00:00:00 2001
From: Tim Northover <Tim.Northover@arm.com>
Date: Mon, 29 Oct 2012 10:47:04 +0000
Subject: Make use of common-symbol alignment info in ELF loader.

Patch by Amara Emerson.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166919 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp')

diff --git a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
index 1073c6f..b9c5f8b 100644
--- a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
+++ b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
@@ -796,6 +796,13 @@ void RuntimeDyldELF::processRelocationRef(const ObjRelocationInfo &Rel,
   }
 }
 
+unsigned RuntimeDyldELF::getCommonSymbolAlignment(const SymbolRef &Sym) {
+  // In ELF, the value of an SHN_COMMON symbol is its alignment requirement.
+  uint64_t Align;
+  Check(Sym.getValue(Align));
+  return Align;
+}
+
 bool RuntimeDyldELF::isCompatibleFormat(const ObjectBuffer *Buffer) const {
   if (Buffer->getBufferSize() < strlen(ELF::ElfMagic))
     return false;
-- 
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