6433849359
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
/*-
|
|
* Copyright (c) 2007 John Birrell (jb@freebsd.org)
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include "_libdwarf.h"
|
|
|
|
int
|
|
dwarf_next_cu_header(Dwarf_Debug dbg, Dwarf_Unsigned *cu_header_length,
|
|
Dwarf_Half *cu_version, Dwarf_Unsigned *cu_abbrev_offset,
|
|
Dwarf_Half *cu_pointer_size, Dwarf_Unsigned *cu_next_offset, Dwarf_Error *error)
|
|
{
|
|
Dwarf_CU next;
|
|
|
|
if (error == NULL)
|
|
return DWARF_E_ERROR;
|
|
|
|
if (dbg == NULL || cu_header_length == NULL || cu_version == NULL ||
|
|
cu_abbrev_offset == NULL || cu_pointer_size == NULL ||
|
|
cu_next_offset == NULL) {
|
|
DWARF_SET_ERROR(error, DWARF_E_ARGUMENT);
|
|
return DWARF_E_ERROR;
|
|
}
|
|
|
|
if (dbg->dbg_cu_current == NULL)
|
|
dbg->dbg_cu_current = STAILQ_FIRST(&dbg->dbg_cu);
|
|
else if ((next = STAILQ_NEXT(dbg->dbg_cu_current, cu_next)) == NULL) {
|
|
DWARF_SET_ERROR(error, DWARF_E_NO_ENTRY);
|
|
return DWARF_E_NO_ENTRY;
|
|
} else
|
|
dbg->dbg_cu_current = next;
|
|
|
|
if (dbg->dbg_cu_current == NULL) {
|
|
DWARF_SET_ERROR(error, DWARF_E_NO_ENTRY);
|
|
return DWARF_E_NO_ENTRY;
|
|
}
|
|
|
|
*cu_header_length = dbg->dbg_cu_current->cu_header_length;
|
|
*cu_version = dbg->dbg_cu_current->cu_version;
|
|
*cu_abbrev_offset = dbg->dbg_cu_current->cu_abbrev_offset;
|
|
*cu_pointer_size = dbg->dbg_cu_current->cu_pointer_size;
|
|
*cu_next_offset = dbg->dbg_cu_current->cu_next_offset;
|
|
|
|
return DWARF_E_NONE;
|
|
}
|