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76 lines
2.0 KiB
76 lines
2.0 KiB
/* Return DIE associated with a location expression op. |
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Copyright (C) 2013 Red Hat, Inc. |
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This file is part of elfutils. |
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This file is free software; you can redistribute it and/or modify |
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it under the terms of either |
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* the GNU Lesser General Public License as published by the Free |
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Software Foundation; either version 3 of the License, or (at |
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your option) any later version |
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or |
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* the GNU General Public License as published by the Free |
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Software Foundation; either version 2 of the License, or (at |
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your option) any later version |
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or both in parallel, as here. |
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elfutils is distributed in the hope that it will be useful, but |
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WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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General Public License for more details. |
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You should have received copies of the GNU General Public License and |
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the GNU Lesser General Public License along with this program. If |
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not, see <http://www.gnu.org/licenses/>. */ |
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#ifdef HAVE_CONFIG_H |
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# include <config.h> |
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#endif |
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#include <dwarf.h> |
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#include <libdwP.h> |
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int |
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dwarf_getlocation_die (Dwarf_Attribute *attr, const Dwarf_Op *op, |
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Dwarf_Die *result) |
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{ |
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if (attr == NULL) |
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return -1; |
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Dwarf_Off dieoff; |
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switch (op->atom) |
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{ |
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case DW_OP_GNU_implicit_pointer: |
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case DW_OP_call_ref: |
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dieoff = op->number; |
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break; |
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case DW_OP_GNU_parameter_ref: |
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case DW_OP_GNU_convert: |
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case DW_OP_GNU_reinterpret: |
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case DW_OP_GNU_const_type: |
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case DW_OP_call2: |
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case DW_OP_call4: |
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dieoff = attr->cu->start + op->number; |
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break; |
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case DW_OP_GNU_regval_type: |
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case DW_OP_GNU_deref_type: |
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dieoff = attr->cu->start + op->number2; |
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break; |
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default: |
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__libdw_seterrno (DWARF_E_INVALID_ACCESS); |
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return -1; |
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} |
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if (__libdw_offdie (attr->cu->dbg, dieoff, result, |
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attr->cu->type_offset != 0) == NULL) |
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return -1; |
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return 0; |
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} |
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INTDEF(dwarf_getlocation_die);
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