385 lines
9.3 KiB
C
385 lines
9.3 KiB
C
/*-
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* Copyright (c) 2009 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_pro_attr.c 2074 2011-10-27 03:34:33Z jkoshy $");
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Dwarf_P_Attribute
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dwarf_add_AT_location_expr(Dwarf_P_Debug dbg, Dwarf_P_Die die, Dwarf_Half attr,
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Dwarf_P_Expr loc_expr, Dwarf_Error *error)
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{
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Dwarf_Attribute at;
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if (dbg == NULL || die == NULL || loc_expr == NULL) {
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DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
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return (DW_DLV_BADADDR);
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}
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if (_dwarf_attr_alloc(die, &at, error) != DW_DLE_NONE)
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return (DW_DLV_BADADDR);
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at->at_die = die;
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at->at_attrib = attr;
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at->at_expr = loc_expr;
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if (_dwarf_expr_into_block(loc_expr, error) != DW_DLE_NONE)
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return (DW_DLV_BADADDR);
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at->u[0].u64 = loc_expr->pe_length;
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at->u[1].u8p = loc_expr->pe_block;
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if (loc_expr->pe_length <= UCHAR_MAX)
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at->at_form = DW_FORM_block1;
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else if (loc_expr->pe_length <= USHRT_MAX)
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at->at_form = DW_FORM_block2;
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else if (loc_expr->pe_length <= UINT_MAX)
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at->at_form = DW_FORM_block4;
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else
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at->at_form = DW_FORM_block;
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STAILQ_INSERT_TAIL(&die->die_attr, at, at_next);
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return (at);
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}
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Dwarf_P_Attribute
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dwarf_add_AT_name(Dwarf_P_Die die, char *name, Dwarf_Error *error)
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{
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Dwarf_Attribute at;
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if (_dwarf_add_string_attr(die, &at, DW_AT_name, name, error) !=
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DW_DLE_NONE)
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return (DW_DLV_BADADDR);
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return (at);
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}
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Dwarf_P_Attribute
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dwarf_add_AT_comp_dir(Dwarf_P_Die die, char *dir, Dwarf_Error *error)
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{
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Dwarf_Attribute at;
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if (_dwarf_add_string_attr(die, &at, DW_AT_comp_dir, dir, error) !=
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DW_DLE_NONE)
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return (DW_DLV_BADADDR);
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return (at);
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}
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Dwarf_P_Attribute
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dwarf_add_AT_producer(Dwarf_P_Die die, char *producer, Dwarf_Error *error)
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{
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Dwarf_Attribute at;
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if (_dwarf_add_string_attr(die, &at, DW_AT_producer, producer, error) !=
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DW_DLE_NONE)
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return (DW_DLV_BADADDR);
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return (at);
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}
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Dwarf_P_Attribute
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dwarf_add_AT_const_value_signedint(Dwarf_P_Die die, Dwarf_Signed value,
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Dwarf_Error *error)
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{
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Dwarf_Attribute at;
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Dwarf_Debug dbg;
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dbg = die != NULL ? die->die_dbg : NULL;
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if (die == NULL) {
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DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
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return (DW_DLV_BADADDR);
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}
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if (_dwarf_attr_alloc(die, &at, error) != DW_DLE_NONE)
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return (DW_DLV_BADADDR);
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at->at_die = die;
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at->at_attrib = DW_AT_const_value;
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at->at_form = DW_FORM_sdata;
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at->u[0].s64 = value;
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STAILQ_INSERT_TAIL(&die->die_attr, at, at_next);
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return (at);
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}
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Dwarf_P_Attribute
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dwarf_add_AT_const_value_unsignedint(Dwarf_P_Die die, Dwarf_Unsigned value,
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Dwarf_Error *error)
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{
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Dwarf_Attribute at;
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Dwarf_Debug dbg;
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dbg = die != NULL ? die->die_dbg : NULL;
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if (die == NULL) {
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DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
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return (DW_DLV_BADADDR);
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}
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if (_dwarf_attr_alloc(die, &at, error) != DW_DLE_NONE)
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return (DW_DLV_BADADDR);
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at->at_die = die;
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at->at_attrib = DW_AT_const_value;
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at->at_form = DW_FORM_udata;
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at->u[0].u64 = value;
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STAILQ_INSERT_TAIL(&die->die_attr, at, at_next);
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return (at);
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}
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Dwarf_P_Attribute
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dwarf_add_AT_const_value_string(Dwarf_P_Die die, char *string,
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Dwarf_Error *error)
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{
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Dwarf_Attribute at;
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if (_dwarf_add_string_attr(die, &at, DW_AT_const_value, string,
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error) != DW_DLE_NONE)
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return (DW_DLV_BADADDR);
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return (at);
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}
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Dwarf_P_Attribute
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dwarf_add_AT_targ_address(Dwarf_P_Debug dbg, Dwarf_P_Die die, Dwarf_Half attr,
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Dwarf_Unsigned pc_value, Dwarf_Signed sym_index, Dwarf_Error *error)
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{
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return (dwarf_add_AT_targ_address_b(dbg, die, attr, pc_value, sym_index,
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error));
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}
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Dwarf_P_Attribute
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dwarf_add_AT_targ_address_b(Dwarf_P_Debug dbg, Dwarf_P_Die die, Dwarf_Half attr,
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Dwarf_Unsigned pc_value, Dwarf_Unsigned sym_index, Dwarf_Error *error)
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{
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Dwarf_Attribute at;
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if (dbg == NULL || die == NULL) {
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DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
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return (DW_DLV_BADADDR);
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}
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if (_dwarf_attr_alloc(die, &at, error) != DW_DLE_NONE)
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return (DW_DLV_BADADDR);
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at->at_die = die;
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at->at_attrib = attr;
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at->at_form = DW_FORM_addr;
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at->at_relsym = sym_index;
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at->u[0].u64 = pc_value;
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STAILQ_INSERT_TAIL(&die->die_attr, at, at_next);
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return (at);
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}
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Dwarf_P_Attribute
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dwarf_add_AT_dataref(Dwarf_P_Debug dbg, Dwarf_P_Die die, Dwarf_Half attr,
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Dwarf_Unsigned pc_value, Dwarf_Unsigned sym_index, Dwarf_Error *error)
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{
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Dwarf_Attribute at;
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int ret;
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if (dbg == NULL || die == NULL) {
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DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
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return (DW_DLV_BADADDR);
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}
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ret = _dwarf_add_AT_dataref(dbg, die, attr, pc_value, sym_index,
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NULL, &at, error);
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if (ret != DW_DLE_NONE)
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return (DW_DLV_BADADDR);
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return (at);
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}
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Dwarf_P_Attribute
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dwarf_add_AT_ref_address(Dwarf_P_Debug dbg, Dwarf_P_Die die, Dwarf_Half attr,
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Dwarf_Unsigned pc_value, Dwarf_Unsigned sym_index, Dwarf_Error *error)
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{
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Dwarf_Attribute at;
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if (dbg == NULL || die == NULL) {
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DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
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return (DW_DLV_BADADDR);
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}
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if (_dwarf_attr_alloc(die, &at, error) != DW_DLE_NONE)
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return (DW_DLV_BADADDR);
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at->at_die = die;
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at->at_attrib = attr;
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at->at_form = DW_FORM_ref_addr;
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at->at_relsym = sym_index;
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at->u[0].u64 = pc_value;
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STAILQ_INSERT_TAIL(&die->die_attr, at, at_next);
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return (at);
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}
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Dwarf_P_Attribute
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dwarf_add_AT_unsigned_const(Dwarf_P_Debug dbg, Dwarf_P_Die die, Dwarf_Half attr,
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Dwarf_Unsigned value, Dwarf_Error *error)
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{
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Dwarf_Attribute at;
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if (dbg == NULL || die == NULL) {
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DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
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return (DW_DLV_BADADDR);
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}
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if (_dwarf_attr_alloc(die, &at, error) != DW_DLE_NONE)
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return (DW_DLV_BADADDR);
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at->at_die = die;
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at->at_attrib = attr;
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at->u[0].u64 = value;
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if (value <= UCHAR_MAX)
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at->at_form = DW_FORM_data1;
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else if (value <= USHRT_MAX)
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at->at_form = DW_FORM_data2;
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else if (value <= UINT_MAX)
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at->at_form = DW_FORM_data4;
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else
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at->at_form = DW_FORM_data8;
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STAILQ_INSERT_TAIL(&die->die_attr, at, at_next);
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return (at);
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}
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Dwarf_P_Attribute
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dwarf_add_AT_signed_const(Dwarf_P_Debug dbg, Dwarf_P_Die die, Dwarf_Half attr,
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Dwarf_Signed value, Dwarf_Error *error)
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{
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Dwarf_Attribute at;
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if (dbg == NULL || die == NULL) {
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DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
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return (DW_DLV_BADADDR);
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}
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if (_dwarf_attr_alloc(die, &at, error) != DW_DLE_NONE)
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return (DW_DLV_BADADDR);
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at->at_die = die;
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at->at_attrib = attr;
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at->u[0].u64 = value;
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if (value >= SCHAR_MIN && value <= SCHAR_MAX)
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at->at_form = DW_FORM_data1;
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else if (value >= SHRT_MIN && value <= SHRT_MAX)
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at->at_form = DW_FORM_data2;
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else if (value >= INT_MIN && value <= INT_MAX)
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at->at_form = DW_FORM_data4;
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else
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at->at_form = DW_FORM_data8;
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STAILQ_INSERT_TAIL(&die->die_attr, at, at_next);
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return (at);
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}
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Dwarf_P_Attribute
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dwarf_add_AT_reference(Dwarf_P_Debug dbg, Dwarf_P_Die die, Dwarf_Half attr,
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Dwarf_P_Die ref_die, Dwarf_Error *error)
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{
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Dwarf_Attribute at;
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if (dbg == NULL || die == NULL) {
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DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
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return (DW_DLV_BADADDR);
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}
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if (_dwarf_attr_alloc(die, &at, error) != DW_DLE_NONE)
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return (DW_DLV_BADADDR);
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at->at_die = die;
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at->at_attrib = attr;
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if (dbg->dbg_offset_size == 4)
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at->at_form = DW_FORM_ref4;
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else
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at->at_form = DW_FORM_ref8;
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at->at_refdie = ref_die;
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STAILQ_INSERT_TAIL(&die->die_attr, at, at_next);
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return (at);
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}
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Dwarf_P_Attribute
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dwarf_add_AT_flag(Dwarf_P_Debug dbg, Dwarf_P_Die die, Dwarf_Half attr,
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Dwarf_Small flag, Dwarf_Error *error)
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{
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Dwarf_Attribute at;
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if (dbg == NULL || die == NULL) {
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DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
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return (DW_DLV_BADADDR);
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}
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if (_dwarf_attr_alloc(die, &at, error) != DW_DLE_NONE)
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return (DW_DLV_BADADDR);
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at->at_die = die;
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at->at_attrib = attr;
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at->at_form = DW_FORM_flag;
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at->u[0].u64 = flag ? 1 : 0;
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STAILQ_INSERT_TAIL(&die->die_attr, at, at_next);
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return (at);
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}
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Dwarf_P_Attribute
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dwarf_add_AT_string(Dwarf_P_Debug dbg, Dwarf_P_Die die, Dwarf_Half attr,
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char *string, Dwarf_Error *error)
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{
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Dwarf_Attribute at;
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if (dbg == NULL || die == NULL) {
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DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
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return (DW_DLV_BADADDR);
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}
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/* XXX Add DW_FORM_string style string instead? */
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if (_dwarf_add_string_attr(die, &at, attr, string, error) !=
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DW_DLE_NONE)
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return (DW_DLV_BADADDR);
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return (at);
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}
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