2 * Copyright (c) 2007 John Birrell (jb@freebsd.org)
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include "_libdwarf.h"
32 dwarf_next_cu_header(Dwarf_Debug dbg, Dwarf_Unsigned *cu_header_length,
33 Dwarf_Half *cu_version, Dwarf_Unsigned *cu_abbrev_offset,
34 Dwarf_Half *cu_pointer_size, Dwarf_Unsigned *cu_next_offset, Dwarf_Error *error)
41 if (dbg == NULL || cu_header_length == NULL || cu_version == NULL ||
42 cu_abbrev_offset == NULL || cu_pointer_size == NULL ||
43 cu_next_offset == NULL) {
44 DWARF_SET_ERROR(error, DWARF_E_ARGUMENT);
48 if (dbg->dbg_cu_current == NULL)
49 dbg->dbg_cu_current = STAILQ_FIRST(&dbg->dbg_cu);
50 else if ((next = STAILQ_NEXT(dbg->dbg_cu_current, cu_next)) == NULL) {
51 DWARF_SET_ERROR(error, DWARF_E_NO_ENTRY);
52 return DWARF_E_NO_ENTRY;
54 dbg->dbg_cu_current = next;
56 if (dbg->dbg_cu_current == NULL) {
57 DWARF_SET_ERROR(error, DWARF_E_NO_ENTRY);
58 return DWARF_E_NO_ENTRY;
61 *cu_header_length = dbg->dbg_cu_current->cu_header_length;
62 *cu_version = dbg->dbg_cu_current->cu_version;
63 *cu_abbrev_offset = dbg->dbg_cu_current->cu_abbrev_offset;
64 *cu_pointer_size = dbg->dbg_cu_current->cu_pointer_size;
65 *cu_next_offset = dbg->dbg_cu_current->cu_next_offset;