1/* $NetBSD: dwarf_ranges.c,v 1.5 2024/03/03 17:37:32 christos Exp $ */ 2 3/*- 4 * Copyright (c) 2009,2011 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_ranges.c,v 1.5 2024/03/03 17:37:32 christos Exp $"); 32ELFTC_VCSID("Id: dwarf_ranges.c 3029 2014-04-21 23:26:02Z kaiwang27"); 33 34static int 35_dwarf_get_ranges(Dwarf_Debug dbg, Dwarf_CU cu, Dwarf_Off off, 36 Dwarf_Ranges **ranges, Dwarf_Signed *ret_cnt, Dwarf_Unsigned *ret_byte_cnt, 37 Dwarf_Error *error) 38{ 39 Dwarf_Rangelist rl; 40 int ret; 41 42 assert(cu != NULL); 43 if (_dwarf_ranges_find(dbg, off, &rl) == DW_DLE_NO_ENTRY) { 44 ret = _dwarf_ranges_add(dbg, cu, off, &rl, error); 45 if (ret != DW_DLE_NONE) 46 return (DW_DLV_ERROR); 47 } 48 49 *ranges = rl->rl_rgarray; 50 *ret_cnt = rl->rl_rglen; 51 52 if (ret_byte_cnt != NULL) 53 *ret_byte_cnt = cu->cu_pointer_size * rl->rl_rglen * 2; 54 55 return (DW_DLV_OK); 56} 57 58int 59dwarf_get_ranges(Dwarf_Debug dbg, Dwarf_Off offset, Dwarf_Ranges **ranges, 60 Dwarf_Signed *ret_cnt, Dwarf_Unsigned *ret_byte_cnt, Dwarf_Error *error) 61{ 62 63 if (dbg == NULL || ranges == NULL || ret_cnt == NULL) { 64 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT); 65 return (DW_DLV_ERROR); 66 } 67 68 if (!dbg->dbg_info_loaded) { 69 if (_dwarf_info_load(dbg, 1, 1, error) != DW_DLE_NONE) 70 return (DW_DLV_ERROR); 71 } 72 73 return (_dwarf_get_ranges(dbg, STAILQ_FIRST(&dbg->dbg_cu), offset, 74 ranges, ret_cnt, ret_byte_cnt, error)); 75} 76 77int 78dwarf_get_ranges_a(Dwarf_Debug dbg, Dwarf_Off offset, Dwarf_Die die, 79 Dwarf_Ranges **ranges, Dwarf_Signed *ret_cnt, Dwarf_Unsigned *ret_byte_cnt, 80 Dwarf_Error *error) 81{ 82 83 if (dbg == NULL || die == NULL || ranges == NULL || ret_cnt == NULL) { 84 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT); 85 return (DW_DLV_ERROR); 86 } 87 88 return (_dwarf_get_ranges(dbg, die->die_cu, offset, ranges, ret_cnt, 89 ret_byte_cnt, error)); 90} 91