diff options
Diffstat (limited to 'libdw/dwarf_getfuncs.c')
-rw-r--r-- | libdw/dwarf_getfuncs.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/libdw/dwarf_getfuncs.c b/libdw/dwarf_getfuncs.c new file mode 100644 index 00000000..149f1860 --- /dev/null +++ b/libdw/dwarf_getfuncs.c @@ -0,0 +1,63 @@ +/* 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_Func *, 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) + { + Dwarf_Func fct; + + fct.die = die; + fct.cudie = cudie; + + if (callback (&fct, arg) != DWARF_CB_OK) + return INTUSE(dwarf_dieoffset) (die); + } + + if (INTUSE(dwarf_siblingof) (die, &die_mem) != 0) + break; + } + + /* That's all. */ + return 0; +} |