Refactor ARM subarchitecture parsing

[oota-llvm.git] / lib / Target / ARM / ARMTargetObjectFile.cpp

diff --git a/lib/Target/ARM/ARMTargetObjectFile.cpp b/lib/Target/ARM/ARMTargetObjectFile.cpp
index f967b4d21ead235a975ee3c943868ed9d659c9de..48238bfcf696b25d85fbfac71d415732fe290f56 100644 (file)
--- a/lib/Target/ARM/ARMTargetObjectFile.cpp
+++ b/lib/Target/ARM/ARMTargetObjectFile.cpp
@@ -9,10 +9,15 @@
 
 #include "ARMTargetObjectFile.h"
 #include "ARMSubtarget.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/IR/Mangler.h"
+#include "llvm/MC/MCAsmInfo.h"
 #include "llvm/MC/MCContext.h"
+#include "llvm/MC/MCExpr.h"
 #include "llvm/MC/MCSectionELF.h"
 #include "llvm/Support/Dwarf.h"
-#include "llvm/Target/TargetMachine.h"
+#include "llvm/Support/ELF.h"
+#include "llvm/Target/TargetLowering.h"
 using namespace llvm;
 using namespace dwarf;
 
@@ -22,24 +27,37 @@ using namespace dwarf;
 
 void ARMElfTargetObjectFile::Initialize(MCContext &Ctx,
                                         const TargetMachine &TM) {
+  bool isAAPCS_ABI = TM.getSubtarget<ARMSubtarget>().isAAPCS_ABI();
   TargetLoweringObjectFileELF::Initialize(Ctx, TM);
+  InitializeELF(isAAPCS_ABI);
 
-  if (TM.getSubtarget<ARMSubtarget>().isAAPCS_ABI()) {
-    StaticCtorSection =
-      getContext().getELFSection(".init_array", MCSectionELF::SHT_INIT_ARRAY,
-                                 MCSectionELF::SHF_WRITE |
-                                 MCSectionELF::SHF_ALLOC,
-                                 SectionKind::getDataRel());
-    StaticDtorSection =
-      getContext().getELFSection(".fini_array", MCSectionELF::SHT_FINI_ARRAY,
-                                 MCSectionELF::SHF_WRITE |
-                                 MCSectionELF::SHF_ALLOC,
-                                 SectionKind::getDataRel());
+  if (isAAPCS_ABI) {
+    LSDASection = nullptr;
   }
-  
+
   AttributesSection =
     getContext().getELFSection(".ARM.attributes",
-                               MCSectionELF::SHT_ARM_ATTRIBUTES,
+                               ELF::SHT_ARM_ATTRIBUTES,
                                0,
                                SectionKind::getMetadata());
 }
+
+const MCExpr *ARMElfTargetObjectFile::getTTypeGlobalReference(
+    const GlobalValue *GV, unsigned Encoding, Mangler &Mang,
+    const TargetMachine &TM, MachineModuleInfo *MMI,
+    MCStreamer &Streamer) const {
+  if (TM.getMCAsmInfo()->getExceptionHandlingType() != ExceptionHandling::ARM)
+    return TargetLoweringObjectFileELF::getTTypeGlobalReference(
+        GV, Encoding, Mang, TM, MMI, Streamer);
+
+  assert(Encoding == DW_EH_PE_absptr && "Can handle absptr encoding only");
+
+  return MCSymbolRefExpr::Create(TM.getSymbol(GV, Mang),
+                                 MCSymbolRefExpr::VK_ARM_TARGET2, getContext());
+}
+
+const MCExpr *ARMElfTargetObjectFile::
+getDebugThreadLocalSymbol(const MCSymbol *Sym) const {
+  return MCSymbolRefExpr::Create(Sym, MCSymbolRefExpr::VK_ARM_TLSLDO,
+                                 getContext());
+}