diff options
Diffstat (limited to 'rtemstoolkit/elftoolchain/libdwarf/dwarf_abbrev.c')
| -rw-r--r-- | rtemstoolkit/elftoolchain/libdwarf/dwarf_abbrev.c | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/rtemstoolkit/elftoolchain/libdwarf/dwarf_abbrev.c b/rtemstoolkit/elftoolchain/libdwarf/dwarf_abbrev.c new file mode 100644 index 0000000..448dc77 --- /dev/null +++ b/rtemstoolkit/elftoolchain/libdwarf/dwarf_abbrev.c @@ -0,0 +1,136 @@ +/*- + * 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_abbrev.c 2072 2011-10-27 03:26:49Z jkoshy $"); + +int +dwarf_get_abbrev(Dwarf_Debug dbg, Dwarf_Unsigned offset, + Dwarf_Abbrev *return_abbrev, Dwarf_Unsigned *length, + Dwarf_Unsigned *attr_count, Dwarf_Error *error) +{ + Dwarf_Abbrev ab; + int ret; + + if (dbg == NULL || return_abbrev == NULL || length == NULL || + attr_count == NULL) { + DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT); + return (DW_DLV_ERROR); + } + + ret = _dwarf_abbrev_parse(dbg, NULL, &offset, &ab, error); + if (ret != DW_DLE_NONE) { + if (ret == DW_DLE_NO_ENTRY) { + DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY); + return (DW_DLV_NO_ENTRY); + } else + return (DW_DLV_ERROR); + } + + *return_abbrev = ab; + *length = ab->ab_length; + *attr_count = ab->ab_atnum; + + return (DW_DLV_OK); +} + +int +dwarf_get_abbrev_tag(Dwarf_Abbrev abbrev, Dwarf_Half *return_tag, + Dwarf_Error *error) +{ + + if (abbrev == NULL || return_tag == NULL) { + DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT); + return (DW_DLV_ERROR); + } + + *return_tag = (Dwarf_Half) abbrev->ab_tag; + + return (DW_DLV_OK); +} + +int +dwarf_get_abbrev_code(Dwarf_Abbrev abbrev, Dwarf_Unsigned *return_code, + Dwarf_Error *error) +{ + + if (abbrev == NULL || return_code == NULL) { + DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT); + return (DW_DLV_ERROR); + } + + *return_code = abbrev->ab_entry; + + return (DW_DLV_OK); +} + +int +dwarf_get_abbrev_children_flag(Dwarf_Abbrev abbrev, Dwarf_Signed *return_flag, + Dwarf_Error *error) +{ + + if (abbrev == NULL || return_flag == NULL) { + DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT); + return (DW_DLV_ERROR); + } + + *return_flag = (Dwarf_Signed) abbrev->ab_children; + + return (DW_DLV_OK); +} + +int +dwarf_get_abbrev_entry(Dwarf_Abbrev abbrev, Dwarf_Signed ndx, + Dwarf_Half *attr_num, Dwarf_Signed *form, Dwarf_Off *offset, + Dwarf_Error *error) +{ + Dwarf_AttrDef ad; + int i; + + if (abbrev == NULL || attr_num == NULL || form == NULL || + offset == NULL) { + DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT); + return (DW_DLV_ERROR); + } + + if (ndx < 0 || (uint64_t) ndx >= abbrev->ab_atnum) { + DWARF_SET_ERROR(NULL, error, DW_DLE_NO_ENTRY); + return (DW_DLV_NO_ENTRY); + } + + ad = STAILQ_FIRST(&abbrev->ab_attrdef); + for (i = 0; i < ndx && ad != NULL; i++) + ad = STAILQ_NEXT(ad, ad_next); + + assert(ad != NULL); + + *attr_num = ad->ad_attrib; + *form = ad->ad_form; + *offset = ad->ad_offset; + + return (DW_DLV_OK); +} |