usr/src/tools/ctf/dwarf/common/dwarf_funcs.c

   1 /*
   2
   3   Copyright (C) 2000-2005 Silicon Graphics, Inc.  All Rights Reserved.
   4   Portions Copyright (C) 2009-2010 David Anderson. All Rights Reserved.
   5
   6   This program is free software; you can redistribute it and/or modify it
   7   under the terms of version 2.1 of the GNU Lesser General Public License
   8   as published by the Free Software Foundation.
   9
  10   This program is distributed in the hope that it would be useful, but
  11   WITHOUT ANY WARRANTY; without even the implied warranty of
  12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  13
  14   Further, this software is distributed without any warranty that it is
  15   free of the rightful claim of any third person regarding infringement
  16   or the like.  Any license provided herein, whether implied or
  17   otherwise, applies only to this software file.  Patent licenses, if
  18   any, provided herein do not apply to combinations of this program with
  19   other software, or any other product whatsoever.
  20
  21   You should have received a copy of the GNU Lesser General Public
  22   License along with this program; if not, write the Free Software
  23   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston MA 02110-1301,
  24   USA.
  25
  26   Contact information:  Silicon Graphics, Inc., 1500 Crittenden Lane,
  27   Mountain View, CA 94043, or:
  28
  29   http://www.sgi.com
  30
  31   For further information regarding this notice, see:
  32
  33   http://oss.sgi.com/projects/GenInfo/NoticeExplan
  34
  35 */
  36
  37
  38
  39 #include "config.h"
  40 #include "dwarf_incl.h"
  41 #include <stdio.h>
  42 #include "dwarf_funcs.h"
  43 #include "dwarf_global.h"
  44
  45 int
  46 dwarf_get_funcs(Dwarf_Debug dbg,
  47     Dwarf_Func ** funcs,
  48     Dwarf_Signed * ret_func_count, Dwarf_Error * error)
  49 {
  50     int res = _dwarf_load_section(dbg, &dbg->de_debug_funcnames,error);
  51     if (res != DW_DLV_OK) {
  52         return res;
  53     }
  54
  55     return _dwarf_internal_get_pubnames_like_data(dbg,
  56         dbg->de_debug_funcnames.dss_data,
  57         dbg->de_debug_funcnames.dss_size,
  58         (Dwarf_Global **) funcs, /* Type punning for sections with identical format. */
  59         ret_func_count,
  60         error,
  61         DW_DLA_FUNC_CONTEXT,
  62         DW_DLA_FUNC,
  63         DW_DLE_DEBUG_FUNCNAMES_LENGTH_BAD,
  64         DW_DLE_DEBUG_FUNCNAMES_VERSION_ERROR);
  65 }
  66
  67 /* Deallocating fully requires deallocating the list
  68    and all entries.  But some internal data is
  69    not exposed, so we need a function with internal knowledge.
  70 */
  71
  72 void
  73 dwarf_funcs_dealloc(Dwarf_Debug dbg, Dwarf_Func * dwgl,
  74     Dwarf_Signed count)
  75 {
  76     _dwarf_internal_globals_dealloc(dbg, (Dwarf_Global *) dwgl,
  77         count,
  78         DW_DLA_FUNC_CONTEXT,
  79         DW_DLA_FUNC, DW_DLA_LIST);
  80     return;
  81 }
  82
  83
  84
  85 int
  86 dwarf_funcname(Dwarf_Func func_in, char **ret_name, Dwarf_Error * error)
  87 {
  88     Dwarf_Global func = (Dwarf_Global) func_in;
  89
  90     if (func == NULL) {
  91         _dwarf_error(NULL, error, DW_DLE_FUNC_NULL);
  92         return (DW_DLV_ERROR);
  93     }
  94
  95     *ret_name = (char *) (func->gl_name);
  96     return DW_DLV_OK;
  97 }
  98
  99 int
 100 dwarf_func_die_offset(Dwarf_Func func_in,
 101     Dwarf_Off * return_offset, Dwarf_Error * error)
 102 {
 103     Dwarf_Global func = (Dwarf_Global) func_in;
 104
 105     return dwarf_global_die_offset(func, return_offset, error);
 106 }
 107
 108
 109 int
 110 dwarf_func_cu_offset(Dwarf_Func func_in,
 111     Dwarf_Off * return_offset, Dwarf_Error * error)
 112 {
 113     Dwarf_Global func = (Dwarf_Global) func_in;
 114
 115     return dwarf_global_cu_offset(func, return_offset, error);
 116 }
 117
 118
 119 int
 120 dwarf_func_name_offsets(Dwarf_Func func_in,
 121     char **ret_func_name,
 122     Dwarf_Off * die_offset,
 123     Dwarf_Off * cu_die_offset, Dwarf_Error * error)
 124 {
 125     Dwarf_Global func = (Dwarf_Global) func_in;
 126
 127     return dwarf_global_name_offsets(func,
 128         ret_func_name,
 129         die_offset, cu_die_offset, error);
 130 }