Place the LSDA into the TEXT section for x86 Darwin. If the global it's pointing

to is local to the translation unit, we need to place fill the value of that
symbol into the non-lazy pointer.

This should conclude all Darwin changes for placing the LSDA into the TEXT
section. There is some cleanup to do. I.e., there's no longer a special need for
target-specific code here. But that can come later.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98564 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 06642a9a77c750a8922cc28eb0619626b33ae382..e810cea17a014fc7c9b4c647a44bf8e95ede1c9a 100644 (file)
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -70,53 +70,14 @@ Disable16Bit("disable-16bit", cl::Hidden,
 static SDValue getMOVL(SelectionDAG &DAG, DebugLoc dl, EVT VT, SDValue V1,
                        SDValue V2);
 
-// FIXME: This is for a test.
-static cl::opt<bool>
-EnableX86EHTest("enable-x86-eh-test", cl::Hidden);
-
-namespace llvm {
-  class X86_test_MachoTargetObjectFile : public TargetLoweringObjectFileMachO {
-  public:
-    virtual void Initialize(MCContext &Ctx, const TargetMachine &TM) {
-      TargetLoweringObjectFileMachO::Initialize(Ctx, TM);
-
-      // Exception Handling.
-      LSDASection = getMachOSection("__TEXT", "__gcc_except_tab", 0,
-                                    SectionKind::getReadOnlyWithRel());
-    }
-
-    virtual unsigned getTTypeEncoding() const {
-      return DW_EH_PE_indirect | DW_EH_PE_pcrel | DW_EH_PE_sdata4;
-    }
-  };
-
-  class X8664_test_MachoTargetObjectFile : public X8664_MachoTargetObjectFile {
-  public:
-    virtual void Initialize(MCContext &Ctx, const TargetMachine &TM) {
-      TargetLoweringObjectFileMachO::Initialize(Ctx, TM);
-
-      // Exception Handling.
-      LSDASection = getMachOSection("__TEXT", "__gcc_except_tab", 0,
-                                    SectionKind::getReadOnlyWithRel());
-    }
-
-    virtual unsigned getTTypeEncoding() const {
-      return DW_EH_PE_indirect | DW_EH_PE_pcrel | DW_EH_PE_sdata4;
-    }
-  };
-}
-
 static TargetLoweringObjectFile *createTLOF(X86TargetMachine &TM) {
   switch (TM.getSubtarget<X86Subtarget>().TargetType) {
   default: llvm_unreachable("unknown subtarget type");
   case X86Subtarget::isDarwin:
-    // FIXME: This is for an EH test.
-    if (EnableX86EHTest) {
-      if (TM.getSubtarget<X86Subtarget>().is64Bit())
-        return new X8664_test_MachoTargetObjectFile();
-      else
-        return new X86_test_MachoTargetObjectFile();
-    }
+    if (TM.getSubtarget<X86Subtarget>().is64Bit())
+      return new X8664_MachoTargetObjectFile();
+    else
+      return new X86_MachoTargetObjectFile();
 
     if (TM.getSubtarget<X86Subtarget>().is64Bit())
       return new X8664_MachoTargetObjectFile();

diff --git a/lib/Target/X86/X86TargetObjectFile.cpp b/lib/Target/X86/X86TargetObjectFile.cpp
index f49153b19d80b8e8b6191b57c3d83fc72da78774..755967bd24fae9e1bff7287287bbf20883a5fd68 100644 (file)
--- a/lib/Target/X86/X86TargetObjectFile.cpp
+++ b/lib/Target/X86/X86TargetObjectFile.cpp
@@ -12,12 +12,26 @@
 #include "X86TargetMachine.h"
 #include "llvm/CodeGen/MachineModuleInfoImpls.h"
 #include "llvm/MC/MCContext.h"
+#include "llvm/MC/MCSectionMachO.h"
 #include "llvm/Target/Mangler.h"
 #include "llvm/ADT/SmallString.h"
 #include "llvm/Support/Dwarf.h"
 using namespace llvm;
 using namespace dwarf;
 
+void X86_MachoTargetObjectFile::Initialize(MCContext &Ctx,
+                                           const TargetMachine &TM) {
+  TargetLoweringObjectFileMachO::Initialize(Ctx, TM);
+
+  // Exception Handling.
+  LSDASection = getMachOSection("__TEXT", "__gcc_except_tab", 0,
+                                SectionKind::getReadOnlyWithRel());
+}
+
+unsigned X86_MachoTargetObjectFile::getTTypeEncoding() const {
+  return DW_EH_PE_indirect | DW_EH_PE_pcrel | DW_EH_PE_sdata4;
+}
+
 const MCExpr *X8664_MachoTargetObjectFile::
 getExprForDwarfGlobalReference(const GlobalValue *GV, Mangler *Mang,
                                MachineModuleInfo *MMI, unsigned Encoding,

diff --git a/lib/Target/X86/X86TargetObjectFile.h b/lib/Target/X86/X86TargetObjectFile.h
index 8fef4d192bbdcd09d1eaccaeba68763af2718f8c..2ae7631ef57a7249c71d715f042dfc6bacf9125d 100644 (file)
--- a/lib/Target/X86/X86TargetObjectFile.h
+++ b/lib/Target/X86/X86TargetObjectFile.h
@@ -17,11 +17,19 @@
 namespace llvm {
   class X86TargetMachine;
 
-  /// X8664_MachoTargetObjectFile - This TLOF implementation is used for
-  /// Darwin/x86-64.
-  class X8664_MachoTargetObjectFile : public TargetLoweringObjectFileMachO {
+  /// X86_MachoTargetObjectFile - This TLOF implementation is used for Darwin
+  /// x86 variants.
+  class X86_MachoTargetObjectFile : public TargetLoweringObjectFileMachO {
   public:
+    virtual void Initialize(MCContext &Ctx, const TargetMachine &TM);
 
+    virtual unsigned getTTypeEncoding() const;
+  };
+
+  /// X8664_MachoTargetObjectFile - This TLOF implementation is used for Darwin
+  /// x86-64.
+  class X8664_MachoTargetObjectFile : public X86_MachoTargetObjectFile {
+  public:
     virtual const MCExpr *
     getExprForDwarfGlobalReference(const GlobalValue *GV, Mangler *Mang,
                                    MachineModuleInfo *MMI, unsigned Encoding,