Add debug support for X86/ELF targets (Linux). This allows llvm-gcc4

[oota-llvm.git] / lib / Target / X86 / X86AsmPrinter.h

diff --git a/lib/Target/X86/X86AsmPrinter.h b/lib/Target/X86/X86AsmPrinter.h
index ed0fdbed27dbffb01b41a6a54a177bbd07f2f296..b2fbe0529cbba424a6627d4dfe6ee5468d20cc41 100755 (executable)
--- a/lib/Target/X86/X86AsmPrinter.h
+++ b/lib/Target/X86/X86AsmPrinter.h
@@ -17,6 +17,8 @@
 #define X86ASMPRINTER_H
 
 #include "X86.h"
+#include "X86MachineFunctionInfo.h"
+#include "X86TargetMachine.h"
 #include "llvm/CodeGen/AsmPrinter.h"
 #include "llvm/CodeGen/DwarfWriter.h"
 #include "llvm/CodeGen/MachineDebugInfo.h"
@@ -25,54 +27,62 @@
 
 
 namespace llvm {
-namespace x86 {
 
 extern Statistic<> EmittedInsts;
 
-/// X86DwarfWriter - Dwarf debug info writer customized for Darwin/Mac OS X
-///
-struct X86DwarfWriter : public DwarfWriter {
- // Ctor.
-X86DwarfWriter(std::ostream &o, AsmPrinter *ap)
-  : DwarfWriter(o, ap)
-    {
-      needsSet = true;
-      DwarfAbbrevSection = ".section __DWARFA,__debug_abbrev";
-      DwarfInfoSection = ".section __DWARFA,__debug_info";
-      DwarfLineSection = ".section __DWARFA,__debug_line";
-      DwarfFrameSection = ".section __DWARFA,__debug_frame";
-      DwarfPubNamesSection = ".section __DWARFA,__debug_pubnames";
-      DwarfPubTypesSection = ".section __DWARFA,__debug_pubtypes";
-      DwarfStrSection = ".section __DWARFA,__debug_str";
-      DwarfLocSection = ".section __DWARFA,__debug_loc";
-      DwarfARangesSection = ".section __DWARFA,__debug_aranges";
-      DwarfRangesSection = ".section __DWARFA,__debug_ranges";
-      DwarfMacInfoSection = ".section __DWARFA,__debug_macinfo";
-      TextSection = ".text";
-       DataSection = ".data";
-    }
-};
+// FIXME: Move this to CodeGen/AsmPrinter.h
+namespace PICStyle {
+  enum X86AsmPICStyle {
+    Stub, GOT
+  };
+}
 
-struct X86SharedAsmPrinter : public AsmPrinter {
-  X86DwarfWriter DW;
+struct VISIBILITY_HIDDEN X86SharedAsmPrinter : public AsmPrinter {
+  DwarfWriter DW;
 
-  X86SharedAsmPrinter(std::ostream &O, TargetMachine &TM)
-    : AsmPrinter(O, TM), DW(O, this), forDarwin(false) { }
+  X86SharedAsmPrinter(std::ostream &O, X86TargetMachine &TM,
+                      const TargetAsmInfo *T)
+    : AsmPrinter(O, TM, T), DW(O, this, T), X86PICStyle(PICStyle::GOT) {
+    Subtarget = &TM.getSubtarget<X86Subtarget>();
+  }
+
+  // We have to propagate some information about MachineFunction to
+  // AsmPrinter. It's ok, when we're printing the function, since we have
+  // access to MachineFunction and can get the appropriate MachineFunctionInfo.
+  // Unfortunately, this is not possible when we're printing reference to
+  // Function (e.g. calling it and so on). Even more, there is no way to get the
+  // corresponding MachineFunctions: it can even be not created at all. That's
+  // why we should use additional structure, when we're collecting all necessary
+  // information.
+  //
+  // This structure is using e.g. for name decoration for stdcall & fastcall'ed
+  // function, since we have to use arguments' size for decoration.
+  typedef std::map<const Function*, X86FunctionInfo> FMFInfoMap;
+  FMFInfoMap FunctionInfoMap;
+
+  void decorateName(std::string& Name, const GlobalValue* GV);
 
   bool doInitialization(Module &M);
   bool doFinalization(Module &M);
 
   void getAnalysisUsage(AnalysisUsage &AU) const {
     AU.setPreservesAll();
-    AU.addRequired<MachineDebugInfo>();
+    if (Subtarget->isTargetDarwin() || Subtarget->isTargetELF()) {
+      AU.addRequired<MachineDebugInfo>();
+    }
     MachineFunctionPass::getAnalysisUsage(AU);
   }
 
-  bool forDarwin;  // FIXME: eliminate.
+  PICStyle::X86AsmPICStyle X86PICStyle;
+  
+  const X86Subtarget *Subtarget;
 
   // Necessary for Darwin to print out the apprioriate types of linker stubs
   std::set<std::string> FnStubs, GVStubs, LinkOnceStubs;
 
+  // Necessary for dllexport support
+  std::set<std::string> DLLExportedFns, DLLExportedGVs;
+  
   inline static bool isScale(const MachineOperand &MO) {
     return MO.isImmediate() &&
           (MO.getImmedValue() == 1 || MO.getImmedValue() == 2 ||
@@ -86,11 +96,11 @@ struct X86SharedAsmPrinter : public AsmPrinter {
       MI->getOperand(Op+2).isRegister() &&
       (MI->getOperand(Op+3).isImmediate() ||
        MI->getOperand(Op+3).isGlobalAddress() ||
-       MI->getOperand(Op+3).isConstantPoolIndex());
+       MI->getOperand(Op+3).isConstantPoolIndex() ||
+       MI->getOperand(Op+3).isJumpTableIndex());
   }
 };
 
-} // end namespace x86
 } // end namespace llvm
 
 #endif