From 3d96acb7351c3bb56d25889601a0f160fdfe9482 Mon Sep 17 00:00:00 2001
From: David Majnemer <david.majnemer@gmail.com>
Date: Tue, 13 Aug 2013 01:23:53 +0000
Subject: [-cxx-abi microsoft] Stick zero initialized symbols into the .bss
 section for COFF

Summary:
We need to do two things:

- Initialize BSSSection in MCObjectFileInfo::InitCOFFMCObjectFileInfo
- Teach TargetLoweringObjectFileCOFF::SelectSectionForGlobal what to do
  with it

This fixes PR16861.

Reviewers: rnk

Reviewed By: rnk

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D1361

llvm-svn: 188244
---
 llvm/lib/MC/MCObjectFileInfo.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'llvm/lib/MC/MCObjectFileInfo.cpp')

diff --git a/llvm/lib/MC/MCObjectFileInfo.cpp b/llvm/lib/MC/MCObjectFileInfo.cpp
index bcf52d2368a..819c00b180c 100644
--- a/llvm/lib/MC/MCObjectFileInfo.cpp
+++ b/llvm/lib/MC/MCObjectFileInfo.cpp
@@ -496,6 +496,12 @@ void MCObjectFileInfo::InitELFMCObjectFileInfo(Triple T) {
 
 void MCObjectFileInfo::InitCOFFMCObjectFileInfo(Triple T) {
   // COFF
+  BSSSection =
+    Ctx->getCOFFSection(".bss",
+                        COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA |
+                        COFF::IMAGE_SCN_MEM_READ |
+                        COFF::IMAGE_SCN_MEM_WRITE,
+                        SectionKind::getBSS());
   TextSection =
     Ctx->getCOFFSection(".text",
                         COFF::IMAGE_SCN_CNT_CODE |
-- 
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