88 lines
2.9 KiB
C
88 lines
2.9 KiB
C
/*-
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* Copyright (c) 2009,2011 Kai Wang
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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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#include "_libdwarf.h"
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ELFTC_VCSID("$Id: dwarf_ranges.c 2075 2011-10-27 03:47:28Z jkoshy $");
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static int
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_dwarf_get_ranges(Dwarf_Debug dbg, Dwarf_CU cu, Dwarf_Off off,
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Dwarf_Ranges **ranges, Dwarf_Signed *ret_cnt, Dwarf_Unsigned *ret_byte_cnt,
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Dwarf_Error *error)
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{
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Dwarf_Rangelist rl;
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int ret;
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assert(cu != NULL);
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if (_dwarf_ranges_find(dbg, off, &rl) == DW_DLE_NO_ENTRY) {
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ret = _dwarf_ranges_add(dbg, cu, off, &rl, error);
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if (ret != DW_DLE_NONE)
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return (DW_DLV_ERROR);
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}
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*ranges = rl->rl_rgarray;
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*ret_cnt = rl->rl_rglen;
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if (ret_byte_cnt != NULL)
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*ret_byte_cnt = cu->cu_pointer_size * rl->rl_rglen * 2;
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return (DW_DLV_OK);
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}
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int
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dwarf_get_ranges(Dwarf_Debug dbg, Dwarf_Off offset, Dwarf_Ranges **ranges,
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Dwarf_Signed *ret_cnt, Dwarf_Unsigned *ret_byte_cnt, Dwarf_Error *error)
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{
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if (dbg == NULL || ranges == NULL || ret_cnt == NULL) {
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DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
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return (DW_DLV_ERROR);
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}
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if (!dbg->dbg_info_loaded) {
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if (_dwarf_info_load(dbg, 1, error) != DW_DLE_NONE)
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return (DW_DLV_ERROR);
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}
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return (_dwarf_get_ranges(dbg, STAILQ_FIRST(&dbg->dbg_cu), offset,
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ranges, ret_cnt, ret_byte_cnt, error));
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}
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int
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dwarf_get_ranges_a(Dwarf_Debug dbg, Dwarf_Off offset, Dwarf_Die die,
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Dwarf_Ranges **ranges, Dwarf_Signed *ret_cnt, Dwarf_Unsigned *ret_byte_cnt,
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Dwarf_Error *error)
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{
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if (dbg == NULL || die == NULL || ranges == NULL || ret_cnt == NULL) {
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DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
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return (DW_DLV_ERROR);
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}
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return (_dwarf_get_ranges(dbg, die->die_cu, offset, ranges, ret_cnt,
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ret_byte_cnt, error));
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}
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