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102 lines
2.6 KiB
C
102 lines
2.6 KiB
C
/* Convenience functions for handling DWARF descriptions of inline functions.
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Copyright (C) 2005,2006,2015 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 "libdwP.h"
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#include <dwarf.h>
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struct visitor_info
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{
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void *die_addr;
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int (*callback) (Dwarf_Die *, void *);
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void *arg;
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};
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static int
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scope_visitor (unsigned int depth __attribute__ ((unused)),
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struct Dwarf_Die_Chain *die, void *arg)
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{
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struct visitor_info *const v = arg;
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if (INTUSE(dwarf_tag) (&die->die) != DW_TAG_inlined_subroutine)
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return DWARF_CB_OK;
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Dwarf_Attribute attr_mem;
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Dwarf_Attribute *attr = INTUSE(dwarf_attr) (&die->die, DW_AT_abstract_origin,
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&attr_mem);
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if (attr == NULL)
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return DWARF_CB_OK;
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Dwarf_Die origin_mem;
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Dwarf_Die *origin = INTUSE(dwarf_formref_die) (attr, &origin_mem);
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if (origin == NULL)
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return DWARF_CB_ABORT;
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if (origin->addr != v->die_addr)
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return DWARF_CB_OK;
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return (*v->callback) (&die->die, v->arg);
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}
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int
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dwarf_func_inline (Dwarf_Die *func)
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{
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Dwarf_Attribute attr_mem;
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Dwarf_Word val;
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if (INTUSE(dwarf_formudata) (INTUSE(dwarf_attr) (func, DW_AT_inline,
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&attr_mem),
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&val) == 0)
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switch (val)
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{
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case DW_INL_not_inlined:
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return 0;
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case DW_INL_declared_not_inlined:
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return -1;
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case DW_INL_inlined:
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case DW_INL_declared_inlined:
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return 1;
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}
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return 0;
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}
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int
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dwarf_func_inline_instances (Dwarf_Die *func,
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int (*callback) (Dwarf_Die *, void *),
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void *arg)
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{
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struct visitor_info v = { func->addr, callback, arg };
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struct Dwarf_Die_Chain cu = { .die = CUDIE (func->cu), .parent = NULL };
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return __libdw_visit_scopes (0, &cu, NULL, &scope_visitor, NULL, &v);
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}
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