6bb9fac446
The API for this library is deliberately different to the GPL'd libdwarf to avoid licensing problems.
69 lines
2.6 KiB
C
69 lines
2.6 KiB
C
/*-
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* Copyright (c) 2007 John Birrell (jb@freebsd.org)
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include "_libdwarf.h"
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int
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dwarf_next_cu_header(Dwarf_Debug dbg, Dwarf_Unsigned *cu_header_length,
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Dwarf_Half *cu_version, Dwarf_Unsigned *cu_abbrev_offset,
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Dwarf_Half *cu_pointer_size, Dwarf_Unsigned *cu_next_offset, Dwarf_Error *error)
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{
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Dwarf_CU next;
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if (error == NULL)
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return DWARF_E_ERROR;
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if (dbg == NULL || cu_header_length == NULL || cu_version == NULL ||
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cu_abbrev_offset == NULL || cu_pointer_size == NULL ||
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cu_next_offset == NULL) {
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DWARF_SET_ERROR(error, DWARF_E_ARGUMENT);
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return DWARF_E_ERROR;
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}
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if (dbg->dbg_cu_current == NULL)
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dbg->dbg_cu_current = STAILQ_FIRST(&dbg->dbg_cu);
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else if ((next = STAILQ_NEXT(dbg->dbg_cu_current, cu_next)) == NULL) {
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DWARF_SET_ERROR(error, DWARF_E_NO_ENTRY);
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return DWARF_E_NO_ENTRY;
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} else
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dbg->dbg_cu_current = next;
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if (dbg->dbg_cu_current == NULL) {
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DWARF_SET_ERROR(error, DWARF_E_NO_ENTRY);
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return DWARF_E_NO_ENTRY;
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}
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*cu_header_length = dbg->dbg_cu_current->cu_header_length;
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*cu_version = dbg->dbg_cu_current->cu_version;
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*cu_abbrev_offset = dbg->dbg_cu_current->cu_abbrev_offset;
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*cu_pointer_size = dbg->dbg_cu_current->cu_pointer_size;
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*cu_next_offset = dbg->dbg_cu_current->cu_next_offset;
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return DWARF_E_NONE;
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}
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