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      1 /**************************************************************************
      2  *
      3  * Copyright 2009 VMware, Inc.
      4  * All Rights Reserved.
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the
      8  * "Software"), to deal in the Software without restriction, including
      9  * without limitation the rights to use, copy, modify, merge, publish,
     10  * distribute, sub license, and/or sell copies of the Software, and to
     11  * permit persons to whom the Software is furnished to do so, subject to
     12  * the following conditions:
     13  *
     14  * The above copyright notice and this permission notice (including the
     15  * next paragraph) shall be included in all copies or substantial portions
     16  * of the Software.
     17  *
     18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
     19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
     21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
     22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
     23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
     24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     25  *
     26  **************************************************************************/
     27 
     28 #ifndef U_DEBUG_STACK_H_
     29 #define U_DEBUG_STACK_H_
     30 
     31 
     32 /**
     33  * @file
     34  * Stack backtracing.
     35  *
     36  * @author Jose Fonseca <jfonseca (at) vmware.com>
     37  */
     38 
     39 
     40 #ifdef	__cplusplus
     41 extern "C" {
     42 #endif
     43 
     44 
     45 /**
     46  * Represent a frame from a stack backtrace.
     47  *
     48  * XXX: Do not change this.
     49  *
     50  * TODO: This should be refactored as a void * typedef.
     51  */
     52 struct debug_stack_frame
     53 {
     54    const void *function;
     55 };
     56 
     57 
     58 void
     59 debug_backtrace_capture(struct debug_stack_frame *backtrace,
     60                         unsigned start_frame,
     61                         unsigned nr_frames);
     62 
     63 void
     64 debug_backtrace_dump(const struct debug_stack_frame *backtrace,
     65                      unsigned nr_frames);
     66 
     67 
     68 #ifdef	__cplusplus
     69 }
     70 #endif
     71 
     72 #endif /* U_DEBUG_STACK_H_ */
     73