diff options
Diffstat (limited to 'rtemstoolkit/elftoolchain/libdwarf/dwarf_arange.c')
| -rw-r--r-- | rtemstoolkit/elftoolchain/libdwarf/dwarf_arange.c | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/rtemstoolkit/elftoolchain/libdwarf/dwarf_arange.c b/rtemstoolkit/elftoolchain/libdwarf/dwarf_arange.c new file mode 100644 index 0000000..46b42cb --- /dev/null +++ b/rtemstoolkit/elftoolchain/libdwarf/dwarf_arange.c @@ -0,0 +1,171 @@ +/*- + * 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_arange.c 2072 2011-10-27 03:26:49Z jkoshy $"); + +int +dwarf_get_aranges(Dwarf_Debug dbg, Dwarf_Arange **arlist, + Dwarf_Signed *ret_arange_cnt, Dwarf_Error *error) +{ + + if (dbg == NULL || arlist == NULL || ret_arange_cnt == NULL) { + DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT); + return (DW_DLV_ERROR); + } + + if (dbg->dbg_arange_cnt == 0) { + if (_dwarf_arange_init(dbg, error) != DW_DLE_NONE) + return (DW_DLV_ERROR); + if (dbg->dbg_arange_cnt == 0) { + DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY); + return (DW_DLV_NO_ENTRY); + } + } + + assert(dbg->dbg_arange_array != NULL); + + *arlist = dbg->dbg_arange_array; + *ret_arange_cnt = dbg->dbg_arange_cnt; + + return (DW_DLV_OK); +} + +int +dwarf_get_arange(Dwarf_Arange *arlist, Dwarf_Unsigned arange_cnt, + Dwarf_Addr addr, Dwarf_Arange *ret_arange, Dwarf_Error *error) +{ + Dwarf_Arange ar; + Dwarf_Debug dbg; + int i; + + if (arlist == NULL) { + DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT); + return (DW_DLV_ERROR); + } + + dbg = (*arlist)->ar_as->as_cu->cu_dbg; + + if (ret_arange == NULL || arange_cnt == 0) { + DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT); + return (DW_DLV_ERROR); + } + + for (i = 0; (Dwarf_Unsigned)i < arange_cnt; i++) { + ar = arlist[i]; + if (addr >= ar->ar_address && addr < ar->ar_address + + ar->ar_range) { + *ret_arange = ar; + return (DW_DLV_OK); + } + } + + DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY); + + return (DW_DLV_NO_ENTRY); +} + +int +dwarf_get_cu_die_offset(Dwarf_Arange ar, Dwarf_Off *ret_offset, + Dwarf_Error *error) +{ + Dwarf_CU cu; + Dwarf_ArangeSet as; + + if (ar == NULL) { + DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT); + return (DW_DLV_ERROR); + } + + as = ar->ar_as; + assert(as != NULL); + cu = as->as_cu; + assert(cu != NULL); + + if (ret_offset == NULL) { + DWARF_SET_ERROR(cu->cu_dbg, error, DW_DLE_ARGUMENT); + return (DW_DLV_ERROR); + } + + *ret_offset = cu->cu_1st_offset; + + return (DW_DLV_OK); +} + +int +dwarf_get_arange_cu_header_offset(Dwarf_Arange ar, Dwarf_Off *ret_offset, + Dwarf_Error *error) +{ + Dwarf_ArangeSet as; + + if (ar == NULL) { + DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT); + return (DW_DLV_ERROR); + } + + as = ar->ar_as; + assert(as != NULL); + + if (ret_offset == NULL) { + DWARF_SET_ERROR(as->as_cu->cu_dbg, error, DW_DLE_ARGUMENT); + return (DW_DLV_ERROR); + } + + *ret_offset = as->as_cu_offset; + + return (DW_DLV_OK); +} + +int +dwarf_get_arange_info(Dwarf_Arange ar, Dwarf_Addr *start, + Dwarf_Unsigned *length, Dwarf_Off *cu_die_offset, Dwarf_Error *error) +{ + Dwarf_CU cu; + Dwarf_ArangeSet as; + + if (ar == NULL) { + DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT); + return (DW_DLV_ERROR); + } + + as = ar->ar_as; + assert(as != NULL); + cu = as->as_cu; + assert(cu != NULL); + + if (start == NULL || length == NULL || + cu_die_offset == NULL) { + DWARF_SET_ERROR(cu->cu_dbg, error, DW_DLE_ARGUMENT); + return (DW_DLV_ERROR); + } + + *start = ar->ar_address; + *length = ar->ar_range; + *cu_die_offset = cu->cu_1st_offset; + + return (DW_DLV_OK); +} |