Revert r151278, breaks static linking.

Reverting this because it breaks static linking on ppc64. Specifically, it may be linkonce_odr functions that are the problem.
With this patch, if you link statically, calls to some functions end up calling their descriptor addresses instead
of calling to their entry points. This causes the execution to fail with SIGILL (b/c the descriptor address just
has some pointers, not code).

llvm-svn: 151433

1 files changed, 6 insertions, 14 deletions

diff --git a/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp b/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
index 5ad11262549..505559b9c68 100644
--- a/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
+++ b/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
@@ -39,7 +39,6 @@
 #include "llvm/MC/MCSectionMachO.h"
 #include "llvm/MC/MCStreamer.h"
 #include "llvm/MC/MCSymbol.h"
-#include "llvm/MC/MCSectionELF.h"
 #include "llvm/Target/Mangler.h"
 #include "llvm/Target/TargetRegisterInfo.h"
 #include "llvm/Target/TargetInstrInfo.h"
@@ -50,7 +49,6 @@
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/TargetRegistry.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/Support/ELF.h"
 #include "llvm/ADT/StringExtras.h"
 #include "llvm/ADT/SmallString.h"
 #include "InstPrinter/PPCInstPrinter.h"
@@ -393,19 +391,13 @@ void PPCLinuxAsmPrinter::EmitFunctionEntryLabel() {
     return AsmPrinter::EmitFunctionEntryLabel();
     
   // Emit an official procedure descriptor.
-  const MCSection *Current = OutStreamer.getCurrentSection();
-  const MCSectionELF *Section = OutStreamer.getContext().getELFSection(".opd",
-      ELF::SHT_PROGBITS, 0, SectionKind::getReadOnly());
-  OutStreamer.SwitchSection(Section);
+  // FIXME 64-bit SVR4: Use MCSection here!
+  OutStreamer.EmitRawText(StringRef("\t.section\t\".opd\",\"aw\""));
+  OutStreamer.EmitRawText(StringRef("\t.align 3"));
   OutStreamer.EmitLabel(CurrentFnSym);
-  MCSymbol *Symbol1 = 
-    OutContext.GetOrCreateSymbol(".L." + Twine(CurrentFnSym->getName()));
-  MCSymbol *Symbol2 = OutContext.GetOrCreateSymbol(StringRef(".TOC.@tocbase"));
-  OutStreamer.EmitValue(MCSymbolRefExpr::Create(Symbol1, OutContext),
-                        Subtarget.isPPC64() ? 8 : 4/*size*/, 0/*addrspace*/);
-  OutStreamer.EmitValue(MCSymbolRefExpr::Create(Symbol2, OutContext),
-                        Subtarget.isPPC64() ? 8 : 4/*size*/, 0/*addrspace*/);
-  OutStreamer.SwitchSection(Current);
+  OutStreamer.EmitRawText("\t.quad .L." + Twine(CurrentFnSym->getName()) +
+                          ",.TOC.@tocbase");
+  OutStreamer.EmitRawText(StringRef("\t.previous"));
 
   MCSymbol *RealFnSym = OutContext.GetOrCreateSymbol(
                           ".L." + Twine(CurrentFnSym->getName()));