Revert 41938 - Merged third_party/tcmalloc/vendor/src(googleperftools r87) in...

third_party/tcmalloc/chromium/src/symbolize.h

 // Copyright (c) 2009, Google Inc.
 // All rights reserved.
 // 
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 // 
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
@@ skipping 15 matching lines @@
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 // ---
 // Author: Craig Silverstein
 
 #ifndef TCMALLOC_SYMBOLIZE_H_
 #define TCMALLOC_SYMBOLIZE_H_
 
-#include "config.h"
-#ifdef HAVE_STDINT_H
-#include <stdint.h>  // for uintptr_t
-#endif
 #include <map>
 
 using std::map;
 
-// SymbolTable encapsulates the address operations necessary for stack trace
-// symbolization. A common use-case is to Add() the addresses from one or
-// several stack traces to a table, call Symbolize() once and use GetSymbol()
-// to get the symbol names for pretty-printing the stack traces.
-class SymbolTable {
- public:
-  SymbolTable()
-    : symbol_buffer_(NULL) {}
-  ~SymbolTable() {
-    delete[] symbol_buffer_;
-  }
+// An average size of memory allocated for a stack trace symbol.
+static const int kSymbolSize = 1024;
 
-  // Adds an address to the table. This may overwrite a currently known symbol
-  // name, so Add() should not generally be called after Symbolize().
-  void Add(const void* addr);
+// TODO(glider): it's better to make SymbolMap a class that encapsulates the
+// address operations and has the Symbolize() method.
+typedef map<uintptr_t, char*> SymbolMap;
 
-  // Returns the symbol name for addr, if the given address was added before
-  // the last successful call to Symbolize(). Otherwise may return an empty
-  // c-string.
-  const char* GetSymbol(const void* addr);
-
-  // Obtains the symbol names for the addresses stored in the table and returns
-  // the number of addresses actually symbolized.
-  int Symbolize();
-
- private:
-  typedef map<const void*, const char*> SymbolMap;
-
-  // An average size of memory allocated for a stack trace symbol.
-  static const int kSymbolSize = 1024;
-
-  // Map from addresses to symbol names.
-  SymbolMap symbolization_table_;
-
-  // Pointer to the buffer that stores the symbol names.
-  char *symbol_buffer_;
-};
+extern bool Symbolize(char *out, int out_size,
+                      SymbolMap *symbolization_table);
 
 #endif  // TCMALLOC_SYMBOLIZE_H_