--- old/src/share/vm/utilities/debug.hpp	2017-06-16 19:47:25.964756218 -0400
+++ new/src/share/vm/utilities/debug.hpp	2017-06-16 19:47:25.832749615 -0400
@@ -25,97 +25,11 @@
 #ifndef SHARE_VM_UTILITIES_DEBUG_HPP
 #define SHARE_VM_UTILITIES_DEBUG_HPP
 
-#include "utilities/globalDefinitions.hpp"
-#include "prims/jvm.h"
+#include "utilities/breakpoint.hpp"
+#include "utilities/compilerWarnings.hpp"
+#include "utilities/macros.hpp"
 
-#include <stdarg.h>
-
-// Simple class to format the ctor arguments into a fixed-sized buffer.
-class FormatBufferBase {
- protected:
-  char* _buf;
-  inline FormatBufferBase(char* buf) : _buf(buf) {}
- public:
-  static const int BufferSize = 256;
-  operator const char *() const { return _buf; }
-};
-
-// Use resource area for buffer
-class FormatBufferResource : public FormatBufferBase {
- public:
-  FormatBufferResource(const char * format, ...) ATTRIBUTE_PRINTF(2, 3);
-};
-
-class FormatBufferDummy {};
-
-// Use stack for buffer
-template <size_t bufsz = FormatBufferBase::BufferSize>
-class FormatBuffer : public FormatBufferBase {
- public:
-  inline FormatBuffer(const char* format, ...) ATTRIBUTE_PRINTF(2, 3);
-  // since va_list is unspecified type (can be char*), we use FormatBufferDummy to disambiguate these constructors
-  inline FormatBuffer(FormatBufferDummy dummy, const char* format, va_list ap) ATTRIBUTE_PRINTF(3, 0);
-  inline void append(const char* format, ...)  ATTRIBUTE_PRINTF(2, 3);
-  inline void print(const char* format, ...)  ATTRIBUTE_PRINTF(2, 3);
-  inline void printv(const char* format, va_list ap) ATTRIBUTE_PRINTF(2, 0);
-
-  char* buffer() { return _buf; }
-  int size() { return bufsz; }
-
- private:
-  FormatBuffer(const FormatBuffer &); // prevent copies
-  char _buffer[bufsz];
-
- protected:
-  inline FormatBuffer();
-};
-
-template <size_t bufsz>
-FormatBuffer<bufsz>::FormatBuffer(const char * format, ...) : FormatBufferBase(_buffer) {
-  va_list argp;
-  va_start(argp, format);
-  jio_vsnprintf(_buf, bufsz, format, argp);
-  va_end(argp);
-}
-
-template <size_t bufsz>
-FormatBuffer<bufsz>::FormatBuffer(FormatBufferDummy dummy, const char * format, va_list ap) : FormatBufferBase(_buffer) {
-  jio_vsnprintf(_buf, bufsz, format, ap);
-}
-
-template <size_t bufsz>
-FormatBuffer<bufsz>::FormatBuffer() : FormatBufferBase(_buffer) {
-  _buf[0] = '\0';
-}
-
-template <size_t bufsz>
-void FormatBuffer<bufsz>::print(const char * format, ...) {
-  va_list argp;
-  va_start(argp, format);
-  jio_vsnprintf(_buf, bufsz, format, argp);
-  va_end(argp);
-}
-
-template <size_t bufsz>
-void FormatBuffer<bufsz>::printv(const char * format, va_list argp) {
-  jio_vsnprintf(_buf, bufsz, format, argp);
-}
-
-template <size_t bufsz>
-void FormatBuffer<bufsz>::append(const char* format, ...) {
-  // Given that the constructor does a vsnprintf we can assume that
-  // _buf is already initialized.
-  size_t len = strlen(_buf);
-  char* buf_end = _buf + len;
-
-  va_list argp;
-  va_start(argp, format);
-  jio_vsnprintf(buf_end, bufsz - len, format, argp);
-  va_end(argp);
-}
-
-// Used to format messages.
-typedef FormatBuffer<> err_msg;
+#include <stddef.h>
 
 // assertions
 #ifndef ASSERT
@@ -311,10 +225,7 @@
 // for test purposes, which is not NULL and contains bits in every word
 NOT_PRODUCT(void* get_segfault_address();)
 
+class frame;
 void pd_ps(frame f);
-void pd_obfuscate_location(char *buf, size_t buflen);
-
-class outputStream;
-void print_native_stack(outputStream* st, frame fr, Thread* t, char* buf, int buf_size);
 
 #endif // SHARE_VM_UTILITIES_DEBUG_HPP