[llvm] r194282 - Add a method to get the object-file appropriate stack map section.

[Lang Hames]

Author: lhames
Date: Fri Nov  8 16:14:49 2013
New Revision: 194282

URL: http://llvm.org/viewvc/llvm-project?rev=194282&view=rev
Log:
Add a method to get the object-file appropriate stack map section.

Thanks to Eric Christopher for the tips on the appropriate way to do this.


Modified:
    llvm/trunk/include/llvm/MC/MCObjectFileInfo.h
    llvm/trunk/lib/CodeGen/StackMaps.cpp
    llvm/trunk/lib/MC/MCObjectFileInfo.cpp

Modified: llvm/trunk/include/llvm/MC/MCObjectFileInfo.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/MC/MCObjectFileInfo.h?rev=194282&r1=194281&r2=194282&view=diff
==============================================================================
--- llvm/trunk/include/llvm/MC/MCObjectFileInfo.h (original)
+++ llvm/trunk/include/llvm/MC/MCObjectFileInfo.h Fri Nov  8 16:14:49 2013
@@ -142,6 +142,8 @@ protected:
   /// ELF and MachO only.
   const MCSection *TLSBSSSection;         // Defaults to ".tbss".
 
+  /// StackMap section.
+  const MCSection *StackMapSection;
 
   /// EHFrameSection - EH frame section. It is initialized on demand so it
   /// can be overwritten (with uniquing).
@@ -285,6 +287,8 @@ public:
   const MCSection *getTLSDataSection() const { return TLSDataSection; }
   const MCSection *getTLSBSSSection() const { return TLSBSSSection; }
 
+  const MCSection *getStackMapSection() const { return StackMapSection; }
+
   /// ELF specific sections.
   ///
   const MCSection *getDataRelSection() const { return DataRelSection; }

Modified: llvm/trunk/lib/CodeGen/StackMaps.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/StackMaps.cpp?rev=194282&r1=194281&r2=194282&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/StackMaps.cpp (original)
+++ llvm/trunk/lib/CodeGen/StackMaps.cpp Fri Nov  8 16:14:49 2013
@@ -97,8 +97,7 @@ void StackMaps::serializeToStackMapSecti
 
   // Create the section.
   const MCSection *StackMapSection =
-    OutContext.getMachOSection("__LLVM_STACKMAPS", "__llvm_stackmaps", 0,
-                               SectionKind::getMetadata());
+    OutContext.getObjectFileInfo().getStackMapSection();
   AP.OutStreamer.SwitchSection(StackMapSection);
 
   // Emit a dummy symbol to force section inclusion.

Modified: llvm/trunk/lib/MC/MCObjectFileInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/MC/MCObjectFileInfo.cpp?rev=194282&r1=194281&r2=194282&view=diff
==============================================================================
--- llvm/trunk/lib/MC/MCObjectFileInfo.cpp (original)
+++ llvm/trunk/lib/MC/MCObjectFileInfo.cpp Fri Nov  8 16:14:49 2013
@@ -234,6 +234,9 @@ void MCObjectFileInfo::InitMachOMCObject
     Ctx->getMachOSection("__DWARF", "__debug_inlined",
                          MCSectionMachO::S_ATTR_DEBUG,
                          SectionKind::getMetadata());
+  StackMapSection =
+    Ctx->getMachOSection("__LLVM_STACKMAPS", "__llvm_stackmaps", 0,
+                         SectionKind::getMetadata());
 
   TLSExtraDataSection = TLSTLVSection;
 }