include/linenum.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*      Copyright (c) 1988 AT&T */
  23 /*        All Rights Reserved   */
  24
  25
  26 #ifndef _LINENUM_H
  27 #define _LINENUM_H
  28
  29 #ifdef  __cplusplus
  30 extern "C" {
  31 #endif
  32
  33 /*
  34  *  There is one line number entry for every
  35  *  "breakpointable" source line in a section.
  36  *  Line numbers are grouped on a per function
  37  *  basis; the first entry in a function grouping
  38  *  will have l_lnno = 0 and in place of physical
  39  *  address will be the symbol table index of
  40  *  the function name.
  41  */
  42 struct lineno
  43 {
  44         union
  45         {
  46                 long    l_symndx;       /* sym. table index of function name */
  47                                         /* iff l_lnno == 0 */
  48                 long    l_paddr;        /* (physical) address of line number */
  49         }               l_addr;
  50         unsigned short  l_lnno;         /* line number */
  51 };
  52
  53 #define LINENO  struct lineno
  54 #define LINESZ  6       /* sizeof(LINENO) */
  55
  56 #ifdef  __cplusplus
  57 }
  58 #endif
  59
  60 #endif  /* _LINENUM_H */