Add VBDEBUG macro for debug output.

firmware/include/utility.h

 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 /* Helper functions/wrappers for memory allocations, manipulation and
  * comparison.
  */
 
 #ifndef VBOOT_REFERENCE_UTILITY_H_
 #define VBOOT_REFERENCE_UTILITY_H_
 
 #include "sysincludes.h"
 
+/* Debug and error output */
+#ifdef VBOOT_DEBUG
+#define VBDEBUG(params) debug params
+#else
+#define VBDEBUG(params)
+#endif
+
 /* Outputs an error message and quits. */
 void error(const char *format, ...);
 
 /* Outputs debug/warning messages. */
 void debug(const char *format, ...);
 
 #define assert(expr) do { if (!(expr)) { \
       error("assert fail: %s at %s:%d\n", \
             #expr, __FILE__, __LINE__); }} while(0)
 
@@ skipping 35 matching lines @@
 #ifndef _STUB_IMPLEMENTATION_
 #define malloc _do_not_use_standard_malloc
 #define free _do_not_use_standard_free
 #define memcmp _do_not_use_standard_memcmp
 #define memcpy _do_not_use_standard_memcpy
 #define memset _do_not_use_standard_memset
 #endif
 
 
 #endif  /* VBOOT_REFERENCE_UTILITY_H_ */