In -fapple-kext mode, global object construction code

ends up in the text segment. // rdar://8825235.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125585 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/CGDeclCXX.cpp b/lib/CodeGen/CGDeclCXX.cpp
index db72080372a75e8491d436d774af1522c5dfacd5..8b37e9af3c6d830d5f1c60359b2d45e3ea4c992c 100644 (file)
--- a/lib/CodeGen/CGDeclCXX.cpp
+++ b/lib/CodeGen/CGDeclCXX.cpp
@@ -159,11 +159,12 @@ CreateGlobalInitOrDestructFunction(CodeGenModule &CGM,
   llvm::Function *Fn =
     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);
+  if (!CGM.getContext().getLangOptions().AppleKext) {
+    // Set the section if needed.
+    if (const char *Section = 
+          CGM.getContext().Target.getStaticInitSectionSpecifier())
+      Fn->setSection(Section);
+  }
 
   if (!CGM.getLangOptions().Exceptions)
     Fn->setDoesNotThrow();

diff --git a/test/CodeGenCXX/apple-kext-no-staticinit-section.C b/test/CodeGenCXX/apple-kext-no-staticinit-section.C
new file mode 100644 (file)
index 0000000..0401d49
--- /dev/null
+++ b/test/CodeGenCXX/apple-kext-no-staticinit-section.C
@@ -0,0 +1,20 @@
+// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fapple-kext -fno-rtti -emit-llvm -o - %s | FileCheck %s
+// rdar://8825235
+/**
+1) Normally, global object construction code ends up in __StaticInit segment of text section
+   .section __TEXT,__StaticInit,regular,pure_instructions
+   In kext mode, they end up in the __text segment.
+*/
+
+class foo {
+public:
+  foo();
+  virtual ~foo();
+};
+
+foo a;
+foo b;
+foo c;
+foo::~foo() {}
+
+// CHECK-NOT: __TEXT,__StaticInit,regular,pure_instructions