[ARM] Support for ARMv6-Z / ARMv6-ZK missing

[oota-llvm.git] / include / llvm / Support / PrettyStackTrace.h

diff --git a/include/llvm/Support/PrettyStackTrace.h b/include/llvm/Support/PrettyStackTrace.h
index 909d286f28b63bcd7b400991844342ddd355c580..027f9433969d152e984705a2847dd233f1b5a08d 100644 (file)
--- a/include/llvm/Support/PrettyStackTrace.h
+++ b/include/llvm/Support/PrettyStackTrace.h
@@ -16,29 +16,33 @@
 #ifndef LLVM_SUPPORT_PRETTYSTACKTRACE_H
 #define LLVM_SUPPORT_PRETTYSTACKTRACE_H
 
+#include "llvm/Support/Compiler.h"
+
 namespace llvm {
   class raw_ostream;
-  
+
+  void EnablePrettyStackTrace();
+
   /// PrettyStackTraceEntry - This class is used to represent a frame of the
   /// "pretty" stack trace that is dumped when a program crashes. You can define
-  /// subclasses of this and declare them on the program stack: when they are 
+  /// subclasses of this and declare them on the program stack: when they are
   /// constructed and destructed, they will add their symbolic frames to a
   /// virtual stack trace.  This gets dumped out if the program crashes.
   class PrettyStackTraceEntry {
     const PrettyStackTraceEntry *NextEntry;
-    PrettyStackTraceEntry(const PrettyStackTraceEntry &); // DO NOT IMPLEMENT
-    void operator=(const PrettyStackTraceEntry&);         // DO NOT IMPLEMENT
+    PrettyStackTraceEntry(const PrettyStackTraceEntry &) = delete;
+    void operator=(const PrettyStackTraceEntry&) = delete;
   public:
     PrettyStackTraceEntry();
     virtual ~PrettyStackTraceEntry();
-    
+
     /// print - Emit information about this stack frame to OS.
     virtual void print(raw_ostream &OS) const = 0;
-    
+
     /// getNextEntry - Return the next entry in the list of frames.
     const PrettyStackTraceEntry *getNextEntry() const { return NextEntry; }
   };
-  
+
   /// PrettyStackTraceString - This object prints a specified string (which
   /// should not contain newlines) to the stream as the stack trace when a crash
   /// occurs.
@@ -46,9 +50,9 @@ namespace llvm {
     const char *Str;
   public:
     PrettyStackTraceString(const char *str) : Str(str) {}
-    virtual void print(raw_ostream &OS) const;
+    void print(raw_ostream &OS) const override;
   };
-  
+
   /// PrettyStackTraceProgram - This object prints a specified program arguments
   /// to the stream as the stack trace when a crash occurs.
   class PrettyStackTraceProgram : public PrettyStackTraceEntry {
@@ -56,10 +60,24 @@ namespace llvm {
     const char *const *ArgV;
   public:
     PrettyStackTraceProgram(int argc, const char * const*argv)
-      : ArgC(argc), ArgV(argv) {}
-    virtual void print(raw_ostream &OS) const;
+      : ArgC(argc), ArgV(argv) {
+      EnablePrettyStackTrace();
+    }
+    void print(raw_ostream &OS) const override;
   };
-  
+
+  /// Returns the topmost element of the "pretty" stack state.
+  const void* SavePrettyStackState();
+
+  /// Restores the topmost element of the "pretty" stack state to State, which
+  /// should come from a previous call to SavePrettyStackState().  This is
+  /// useful when using a CrashRecoveryContext in code that also uses
+  /// PrettyStackTraceEntries, to make sure the stack that's printed if a crash
+  /// happens after a crash that's been recovered by CrashRecoveryContext
+  /// doesn't have frames on it that were added in code unwound by the
+  /// CrashRecoveryContext.
+  void RestorePrettyStackState(const void* State);
+
 } // end namespace llvm
 
 #endif