Emit the TLS intialization functions into a list.
Add the TLS initialization functions to a list of initialization functions. The
back-end takes this list and places the function pointers into the correct
section. This way they're called before `main().'
<rdar://problem/13733006>
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180739 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenModule.h b/lib/CodeGen/CodeGenModule.h
index 0f4fe8a..ca30096 100644
--- a/lib/CodeGen/CodeGenModule.h
+++ b/lib/CodeGen/CodeGenModule.h
@@ -293,6 +293,10 @@
/// priorities to be emitted when the translation unit is complete.
CtorList GlobalDtors;
+ /// TLSInitFuncs - Store the list of TLS initialization functions toe be
+ /// emitted with the translation unit is complete.
+ std::vector<llvm::Constant*> TLSInitFuncs;
+
/// MangledDeclNames - A map of canonical GlobalDecls to their mangled names.
llvm::DenseMap<GlobalDecl, StringRef> MangledDeclNames;
llvm::BumpPtrAllocator MangledNamesAllocator;
@@ -1053,11 +1057,18 @@
void AddGlobalCtor(llvm::Function *Ctor, int Priority=65535);
void AddGlobalDtor(llvm::Function *Dtor, int Priority=65535);
+ void AddTLSInitFunc(llvm::Function *Init);
+
/// EmitCtorList - Generates a global array of functions and priorities using
/// the given list and name. This array will have appending linkage and is
/// suitable for use as a LLVM constructor or destructor array.
void EmitCtorList(const CtorList &Fns, const char *GlobalName);
+ /// EmitTLSList - Generates a global array of functions with the name
+ /// `llvm.tls_init_funcs'. This array will have appending linkage and is meant
+ /// to hold initialization functions for TLS variables.
+ void EmitTLSList(ArrayRef<llvm::Constant*> Fns);
+
/// EmitFundamentalRTTIDescriptor - Emit the RTTI descriptors for the
/// given type.
void EmitFundamentalRTTIDescriptor(QualType Type);