This patch introduces initial-exec model support for thread-local storage

[oota-llvm.git] / include / llvm / MC / MCContext.h

diff --git a/include/llvm/MC/MCContext.h b/include/llvm/MC/MCContext.h
index 455b45ea234357dadf65186769dac722fa3b9fac..78870d9633e2660e2cff70beeb75105dfd6abe76 100644 (file)
--- a/include/llvm/MC/MCContext.h
+++ b/include/llvm/MC/MCContext.h
@@ -10,11 +10,12 @@
 #ifndef LLVM_MC_MCCONTEXT_H
 #define LLVM_MC_MCCONTEXT_H
 
-#include "llvm/MC/SectionKind.h"
-#include "llvm/MC/MCDwarf.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/StringMap.h"
+#include "llvm/MC/MCDwarf.h"
+#include "llvm/MC/SectionKind.h"
 #include "llvm/Support/Allocator.h"
+#include "llvm/Support/Compiler.h"
 #include "llvm/Support/raw_ostream.h"
 #include <vector> // FIXME: Shouldn't be needed.
 
@@ -29,6 +30,7 @@ namespace llvm {
   class MCObjectFileInfo;
   class MCRegisterInfo;
   class MCLineSection;
+  class SMLoc;
   class StringRef;
   class Twine;
   class MCSectionMachO;
@@ -38,11 +40,13 @@ namespace llvm {
   /// of the sections that it creates.
   ///
   class MCContext {
-    MCContext(const MCContext&); // DO NOT IMPLEMENT
-    MCContext &operator=(const MCContext&); // DO NOT IMPLEMENT
+    MCContext(const MCContext&) LLVM_DELETED_FUNCTION;
+    MCContext &operator=(const MCContext&) LLVM_DELETED_FUNCTION;
   public:
     typedef StringMap<MCSymbol*, BumpPtrAllocator&> SymbolTable;
   private:
+    /// The SourceMgr for this object, if any.
+    const SourceMgr *SrcMgr;
 
     /// The MCAsmInfo for this target.
     const MCAsmInfo &MAI;
@@ -111,9 +115,9 @@ namespace llvm {
     /// Symbols created for the start and end of this section.
     MCSymbol *GenDwarfSectionStartSym, *GenDwarfSectionEndSym;
 
-    /// The information gathered from labels that will have dwarf subprogram
+    /// The information gathered from labels that will have dwarf label
     /// entries when generating dwarf assembly source files.
-    std::vector<const MCGenDwarfSubprogramEntry *> MCGenDwarfSubprogramEntries;
+    std::vector<const MCGenDwarfLabelEntry *> MCGenDwarfLabelEntries;
 
     /// The string to embed in the debug information for the compile unit, if
     /// non-empty.
@@ -137,9 +141,11 @@ namespace llvm {
 
   public:
     explicit MCContext(const MCAsmInfo &MAI, const MCRegisterInfo &MRI,
-                       const MCObjectFileInfo *MOFI);
+                       const MCObjectFileInfo *MOFI, const SourceMgr *Mgr = 0);
     ~MCContext();
 
+    const SourceMgr *getSourceManager() const { return SrcMgr; }
+
     const MCAsmInfo &getAsmInfo() const { return MAI; }
 
     const MCRegisterInfo &getRegisterInfo() const { return MRI; }
@@ -155,6 +161,10 @@ namespace llvm {
     /// with a unique but unspecified name.
     MCSymbol *CreateTempSymbol();
 
+    /// getUniqueSymbolID() - Return a unique identifier for use in constructing
+    /// symbol names.
+    unsigned getUniqueSymbolID() { return NextUniqueID++; }
+
     /// CreateDirectionalLocalSymbol - Create the definition of a directional
     /// local symbol for numbered label (used for "1:" definitions).
     MCSymbol *CreateDirectionalLocalSymbol(int64_t LocalLabelVal);
@@ -173,6 +183,7 @@ namespace llvm {
 
     /// LookupSymbol - Get the symbol for \p Name, or null.
     MCSymbol *LookupSymbol(StringRef Name) const;
+    MCSymbol *LookupSymbol(const Twine &Name) const;
 
     /// getSymbols - Get a reference for the symbol table for clients that
     /// want to, for example, iterate over all symbols. 'const' because we
@@ -287,12 +298,12 @@ namespace llvm {
     void setGenDwarfSectionEndSym(MCSymbol *Sym) {
       GenDwarfSectionEndSym = Sym;
     }
-    const std::vector<const MCGenDwarfSubprogramEntry *>
-      &getMCGenDwarfSubprogramEntries() const {
-      return MCGenDwarfSubprogramEntries;
+    const std::vector<const MCGenDwarfLabelEntry *>
+      &getMCGenDwarfLabelEntries() const {
+      return MCGenDwarfLabelEntries;
     }
-    void addMCGenDwarfSubprogramEntry(const MCGenDwarfSubprogramEntry *E) {
-      MCGenDwarfSubprogramEntries.push_back(E);
+    void addMCGenDwarfLabelEntry(const MCGenDwarfLabelEntry *E) {
+      MCGenDwarfLabelEntries.push_back(E);
     }
 
     void setDwarfDebugFlags(StringRef S) { DwarfDebugFlags = S; }
@@ -315,6 +326,11 @@ namespace llvm {
     }
     void Deallocate(void *Ptr) {
     }
+
+    // Unrecoverable error has occured. Display the best diagnostic we can
+    // and bail via exit(1). For now, most MC backend errors are unrecoverable.
+    // FIXME: We should really do something about that.
+    LLVM_ATTRIBUTE_NORETURN void FatalError(SMLoc L, const Twine &Msg);
   };
 
 } // end namespace llvm