From 2a154dd09feb0940812c43f187f55f80b9e7317e Mon Sep 17 00:00:00 2001
From: Timur Iskhodzhanov <timurrrr@google.com>
Date: Tue, 28 Jan 2014 03:48:44 +0000
Subject: [PATCH] MC: Add a .debug section that we'll soon use to emit debug
 info into COFF files

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200285 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/MC/MCObjectFileInfo.h | 6 ++++++
 lib/MC/MCObjectFileInfo.cpp        | 7 +++++++
 2 files changed, 13 insertions(+)

diff --git a/include/llvm/MC/MCObjectFileInfo.h b/include/llvm/MC/MCObjectFileInfo.h
index 7734a157f54..cc5eb9eeeb9 100644
--- a/include/llvm/MC/MCObjectFileInfo.h
+++ b/include/llvm/MC/MCObjectFileInfo.h
@@ -129,6 +129,8 @@ protected:
   const MCSection *DwarfGnuPubNamesSection;
   const MCSection *DwarfGnuPubTypesSection;
 
+  const MCSection *COFFDebugSymbolsSection;
+
   // Extra TLS Variable Data section.  If the target needs to put additional
   // information for a TLS variable, it'll go here.
   const MCSection *TLSExtraDataSection;
@@ -283,6 +285,10 @@ public:
     return DwarfAddrSection;
   }
 
+  const MCSection *getCOFFDebugSymbolsSection() const {
+    return COFFDebugSymbolsSection;
+  }
+
   const MCSection *getTLSExtraDataSection() const {
     return TLSExtraDataSection;
   }
diff --git a/lib/MC/MCObjectFileInfo.cpp b/lib/MC/MCObjectFileInfo.cpp
index 702ec6e421d..796d03bfeb3 100644
--- a/lib/MC/MCObjectFileInfo.cpp
+++ b/lib/MC/MCObjectFileInfo.cpp
@@ -609,6 +609,13 @@ void MCObjectFileInfo::InitCOFFMCObjectFileInfo(Triple T) {
                         SectionKind::getReadOnly());
 
   // Debug info.
+  COFFDebugSymbolsSection =
+    Ctx->getCOFFSection(".debug$S",
+                        COFF::IMAGE_SCN_MEM_DISCARDABLE |
+                        COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
+                        COFF::IMAGE_SCN_MEM_READ,
+                        SectionKind::getMetadata());
+
   DwarfAbbrevSection =
     Ctx->getCOFFSection(".debug_abbrev",
                         COFF::IMAGE_SCN_MEM_DISCARDABLE |