diff options
Diffstat (limited to 'rtemstoolkit/elftoolchain/libdwarf/dwarf_ranges.c')
-rw-r--r-- | rtemstoolkit/elftoolchain/libdwarf/dwarf_ranges.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/rtemstoolkit/elftoolchain/libdwarf/dwarf_ranges.c b/rtemstoolkit/elftoolchain/libdwarf/dwarf_ranges.c new file mode 100644 index 0000000..2e01da5 --- /dev/null +++ b/rtemstoolkit/elftoolchain/libdwarf/dwarf_ranges.c @@ -0,0 +1,87 @@ +/*- + * 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)); +} |