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      1 /*	$NetBSD: dwarf_pro_arange.c,v 1.5 2024/03/03 17:37:32 christos Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2010 Kai Wang
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #include "_libdwarf.h"
     30 
     31 __RCSID("$NetBSD: dwarf_pro_arange.c,v 1.5 2024/03/03 17:37:32 christos Exp $");
     32 ELFTC_VCSID("Id: dwarf_pro_arange.c 2074 2011-10-27 03:34:33Z jkoshy");
     33 
     34 Dwarf_Unsigned
     35 dwarf_add_arange(Dwarf_P_Debug dbg, Dwarf_Addr start, Dwarf_Unsigned length,
     36     Dwarf_Signed symbol_index, Dwarf_Error *error)
     37 {
     38 
     39 	return (dwarf_add_arange_b(dbg, start, length, symbol_index, 0, 0,
     40 	    error));
     41 }
     42 
     43 Dwarf_Unsigned
     44 dwarf_add_arange_b(Dwarf_P_Debug dbg, Dwarf_Addr start, Dwarf_Unsigned length,
     45     Dwarf_Unsigned symbol_index, Dwarf_Unsigned end_symbol_index,
     46     Dwarf_Addr offset_from_end_symbol, Dwarf_Error *error)
     47 {
     48 	Dwarf_ArangeSet as;
     49 	Dwarf_Arange ar;
     50 
     51 	if (dbg == NULL) {
     52 		DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
     53 		return (0);
     54 	}
     55 	as = dbg->dbgp_as;
     56 
     57 	if (end_symbol_index > 0 &&
     58 	    (dbg->dbgp_flags & DW_DLC_SYMBOLIC_RELOCATIONS) == 0) {
     59 		DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
     60 		return (0);
     61 	}
     62 
     63 	if ((ar = calloc(1, sizeof(struct _Dwarf_Arange))) == NULL) {
     64 		DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
     65 		return (0);
     66 	}
     67 	ar->ar_as = as;
     68 	ar->ar_address = start;
     69 	ar->ar_range = length;
     70 	ar->ar_symndx = symbol_index;
     71 	ar->ar_esymndx = end_symbol_index;
     72 	ar->ar_eoff = offset_from_end_symbol;
     73 	STAILQ_INSERT_TAIL(&as->as_arlist, ar, ar_next);
     74 
     75 	return (1);
     76 }
     77