diff options
Diffstat (limited to 'libdw/dwarf_formudata.c')
-rw-r--r-- | libdw/dwarf_formudata.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/libdw/dwarf_formudata.c b/libdw/dwarf_formudata.c new file mode 100644 index 00000000..67985621 --- /dev/null +++ b/libdw/dwarf_formudata.c @@ -0,0 +1,68 @@ +/* Return unsigned constant represented by attribute. + Copyright (C) 2003, 2005 Red Hat, Inc. + Written by Ulrich Drepper <drepper@redhat.com>, 2003. + + 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" + + +int +dwarf_formudata (attr, return_uval) + Dwarf_Attribute *attr; + Dwarf_Word *return_uval; +{ + if (attr == NULL) + return -1; + + const unsigned char *datap; + + switch (attr->form) + { + case DW_FORM_data1: + *return_uval = *attr->valp; + break; + + case DW_FORM_data2: + *return_uval = read_2ubyte_unaligned (attr->cu->dbg, attr->valp); + break; + + case DW_FORM_data4: + *return_uval = read_4ubyte_unaligned (attr->cu->dbg, attr->valp); + break; + + case DW_FORM_data8: + *return_uval = read_8ubyte_unaligned (attr->cu->dbg, attr->valp); + break; + + case DW_FORM_sdata: + datap = attr->valp; + get_sleb128 (*return_uval, datap); + break; + + case DW_FORM_udata: + datap = attr->valp; + get_uleb128 (*return_uval, datap); + break; + + default: + __libdw_seterrno (DWARF_E_NO_CONSTANT); + return -1; + } + + return 0; +} +INTDEF(dwarf_formudata) |