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/*-
* Copyright (c) 2009,2011 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_ranges.c 3029 2014-04-21 23:26:02Z kaiwang27 $");
static int
_dwarf_get_ranges(Dwarf_Debug dbg, Dwarf_CU cu, Dwarf_Off off,
Dwarf_Ranges **ranges, Dwarf_Signed *ret_cnt, Dwarf_Unsigned *ret_byte_cnt,
Dwarf_Error *error)
{
Dwarf_Rangelist rl;
int ret;
assert(cu != NULL);
if (_dwarf_ranges_find(dbg, off, &rl) == DW_DLE_NO_ENTRY) {
ret = _dwarf_ranges_add(dbg, cu, off, &rl, error);
if (ret != DW_DLE_NONE)
return (DW_DLV_ERROR);
}
*ranges = rl->rl_rgarray;
*ret_cnt = rl->rl_rglen;
if (ret_byte_cnt != NULL)
*ret_byte_cnt = cu->cu_pointer_size * rl->rl_rglen * 2;
return (DW_DLV_OK);
}
int
dwarf_get_ranges(Dwarf_Debug dbg, Dwarf_Off offset, Dwarf_Ranges **ranges,
Dwarf_Signed *ret_cnt, Dwarf_Unsigned *ret_byte_cnt, Dwarf_Error *error)
{
if (dbg == NULL || ranges == NULL || ret_cnt == NULL) {
DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
return (DW_DLV_ERROR);
}
if (!dbg->dbg_info_loaded) {
if (_dwarf_info_load(dbg, 1, 1, error) != DW_DLE_NONE)
return (DW_DLV_ERROR);
}
return (_dwarf_get_ranges(dbg, STAILQ_FIRST(&dbg->dbg_cu), offset,
ranges, ret_cnt, ret_byte_cnt, error));
}
int
dwarf_get_ranges_a(Dwarf_Debug dbg, Dwarf_Off offset, Dwarf_Die die,
Dwarf_Ranges **ranges, Dwarf_Signed *ret_cnt, Dwarf_Unsigned *ret_byte_cnt,
Dwarf_Error *error)
{
if (dbg == NULL || die == NULL || ranges == NULL || ret_cnt == NULL) {
DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
return (DW_DLV_ERROR);
}
return (_dwarf_get_ranges(dbg, die->die_cu, offset, ranges, ret_cnt,
ret_byte_cnt, error));
}
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