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/* Get function information.
Copyright (C) 2005 Red Hat, Inc.
Written by Ulrich Drepper <drepper@redhat.com>, 2005.
This program is Open Source software; you can redistribute it and/or
modify it under the terms of the Open Software License version 1.0 as
published by the Open Source Initiative.
You should have received a copy of the Open Software License along
with this program; if not, you may obtain a copy of the Open Software
License version 1.0 from http://www.opensource.org/licenses/osl.php or
by writing the Open Source Initiative c/o Lawrence Rosen, Esq.,
3001 King Ranch Road, Ukiah, CA 95482. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <dwarf.h>
#include "libdwP.h"
ptrdiff_t
dwarf_getfuncs (Dwarf_Die *cudie, int (*callback) (Dwarf_Die *, void *),
void *arg, ptrdiff_t offset)
{
if (unlikely (cudie == NULL
|| INTUSE(dwarf_tag) (cudie) != DW_TAG_compile_unit))
return -1;
Dwarf_Die die_mem;
Dwarf_Die *die;
int res;
if (offset == 0)
res = INTUSE(dwarf_child) (cudie, &die_mem);
else
{
die = INTUSE(dwarf_offdie) (cudie->cu->dbg, offset, &die_mem);
res = INTUSE(dwarf_siblingof) (die, &die_mem);
}
die = res != 0 ? NULL : &die_mem;
while (die != NULL)
{
if (INTUSE(dwarf_tag) (die) == DW_TAG_subprogram)
{
if (callback (die, arg) != DWARF_CB_OK)
return INTUSE(dwarf_dieoffset) (die);
}
if (INTUSE(dwarf_siblingof) (die, &die_mem) != 0)
break;
}
/* That's all. */
return 0;
}
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