On Darwin, initialization and destruction functions should go into the __StaticInit section.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105650 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 17 insertions, 1 deletions

diff --git a/include/clang/Basic/TargetInfo.h b/include/clang/Basic/TargetInfo.h
index 0cef286afe..4c5019ca98 100644
--- a/include/clang/Basic/TargetInfo.h
+++ b/include/clang/Basic/TargetInfo.h
@@ -456,7 +456,12 @@ public:
     return -1; 
   }
   
-
+  /// getStaticInitSectionSpecifier - Return the section to use for C++ static 
+  /// initialization functions.
+  virtual const char *getStaticInitSectionSpecifier() const {
+    return 0;
+  }
+  
 protected:
   virtual uint64_t getPointerWidthV(unsigned AddrSpace) const {
     return PointerWidth;
diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
index 82c6507190..a6548c4402 100644
--- a/lib/Basic/Targets.cpp
+++ b/lib/Basic/Targets.cpp
@@ -160,6 +160,12 @@ public:
     return llvm::MCSectionMachO::ParseSectionSpecifier(SR, Segment, Section,
                                                        TAA, StubSize);
   }
+  
+  virtual const char *getStaticInitSectionSpecifier() const {
+    // FIXME: We should return 0 when building kexts.
+    return "__TEXT,__StaticInit,regular,pure_instructions";
+  }
+  
 };
 
 
diff --git a/lib/CodeGen/CGDeclCXX.cpp b/lib/CodeGen/CGDeclCXX.cpp
index 4c0de2f75e..b54f5af754 100644
--- a/lib/CodeGen/CGDeclCXX.cpp
+++ b/lib/CodeGen/CGDeclCXX.cpp
@@ -151,6 +151,11 @@ CreateGlobalInitOrDestructFunction(CodeGenModule &CGM,
     llvm::Function::Create(FTy, llvm::GlobalValue::InternalLinkage,
                            Name, &CGM.getModule());
 
+  // Set the section if needed.
+  if (const char *Section = 
+        CGM.getContext().Target.getStaticInitSectionSpecifier())
+    Fn->setSection(Section);
+
   return Fn;
 }