The same situation that effected ARM effects PPC with regards to placing the

LSDA into the TEXT section. We need to generate non-lazy pointers to it on
Mach-O. However, the object the NLP points to may be local to the translation
unit. If so, then the NLP needs to have the value of that object specified
instead of "0", which the linker interprets as "external".

llvm-svn: 98325

1 files changed, 33 insertions, 0 deletions

diff --git a/llvm/lib/Target/PowerPC/PPCTargetObjectFile.cpp b/llvm/lib/Target/PowerPC/PPCTargetObjectFile.cpp
new file mode 100644
index 00000000000..de81040021e
--- /dev/null
+++ b/llvm/lib/Target/PowerPC/PPCTargetObjectFile.cpp
@@ -0,0 +1,33 @@
+//===-- llvm/Target/PPCTargetObjectFile.cpp - PPC Object Info Impl --------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "PPCTargetObjectFile.h"
+#include "PPCSubtarget.h"
+#include "llvm/MC/MCSectionMachO.h"
+#include "llvm/Support/Dwarf.h"
+#include "llvm/Target/TargetMachine.h"
+using namespace llvm;
+using namespace dwarf;
+
+//===----------------------------------------------------------------------===//
+//                              Mach-O Target
+//===----------------------------------------------------------------------===//
+
+void PPCMachOTargetObjectFile::Initialize(MCContext &Ctx,
+                                          const TargetMachine &TM) {
+  TargetLoweringObjectFileMachO::Initialize(Ctx, TM);
+
+  // Exception Handling.
+  LSDASection = getMachOSection("__TEXT", "__gcc_except_tab", 0,
+                                SectionKind::getReadOnlyWithRel());
+}
+
+unsigned PPCMachOTargetObjectFile::getTTypeEncoding() const {
+  return DW_EH_PE_indirect | DW_EH_PE_pcrel | DW_EH_PE_sdata4;
+}