freebsd-dev/contrib/elftoolchain/libdwarf/dwarf_pro_die.c

111 lines
3.1 KiB
C

/*-
* Copyright (c) 2009 Kai Wang
* 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.
*/
#include "_libdwarf.h"
ELFTC_VCSID("$Id: dwarf_pro_die.c 2074 2011-10-27 03:34:33Z jkoshy $");
Dwarf_Unsigned
dwarf_add_die_to_debug(Dwarf_P_Debug dbg, Dwarf_P_Die first_die,
Dwarf_Error *error)
{
if (dbg == NULL || first_die == NULL) {
DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
return (DW_DLV_NOCOUNT);
}
dbg->dbgp_root_die = first_die;
return (DW_DLV_OK);
}
Dwarf_P_Die
dwarf_new_die(Dwarf_P_Debug dbg, Dwarf_Tag new_tag,
Dwarf_P_Die parent, Dwarf_P_Die child, Dwarf_P_Die left_sibling,
Dwarf_P_Die right_sibling, Dwarf_Error *error)
{
Dwarf_P_Die die;
int count;
if (dbg == NULL) {
DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
return (DW_DLV_BADADDR);
}
count = _dwarf_die_count_links(parent, child, left_sibling,
right_sibling);
if (count > 1) {
DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
return (DW_DLV_BADADDR);
}
if (_dwarf_die_alloc(dbg, &die, error) != DW_DLE_NONE)
return (DW_DLV_BADADDR);
die->die_dbg = dbg;
die->die_tag = new_tag;
STAILQ_INSERT_TAIL(&dbg->dbgp_dielist, die, die_pro_next);
if (count == 0)
return (die);
_dwarf_die_link(die, parent, child, left_sibling, right_sibling);
return (die);
}
Dwarf_P_Die
dwarf_die_link(Dwarf_P_Die die, Dwarf_P_Die parent,
Dwarf_P_Die child, Dwarf_P_Die left_sibling, Dwarf_P_Die right_sibling,
Dwarf_Error *error)
{
Dwarf_Debug dbg;
int count;
if (die == NULL) {
DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT);
return (DW_DLV_BADADDR);
}
dbg = die->die_dbg;
count = _dwarf_die_count_links(parent, child, left_sibling,
right_sibling);
if (count > 1) {
DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
return (DW_DLV_BADADDR);
} else if (count == 0)
return (die);
_dwarf_die_link(die, parent, child, left_sibling, right_sibling);
return (die);
}