12de3b87aSKai Wang.\" Copyright (c) 2010 Joseph Koshy 22de3b87aSKai Wang.\" All rights reserved. 32de3b87aSKai Wang.\" 42de3b87aSKai Wang.\" Redistribution and use in source and binary forms, with or without 52de3b87aSKai Wang.\" modification, are permitted provided that the following conditions 62de3b87aSKai Wang.\" are met: 72de3b87aSKai Wang.\" 1. Redistributions of source code must retain the above copyright 82de3b87aSKai Wang.\" notice, this list of conditions and the following disclaimer. 92de3b87aSKai Wang.\" 2. Redistributions in binary form must reproduce the above copyright 102de3b87aSKai Wang.\" notice, this list of conditions and the following disclaimer in the 112de3b87aSKai Wang.\" documentation and/or other materials provided with the distribution. 122de3b87aSKai Wang.\" 132de3b87aSKai Wang.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 142de3b87aSKai Wang.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 152de3b87aSKai Wang.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 162de3b87aSKai Wang.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 172de3b87aSKai Wang.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 182de3b87aSKai Wang.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 192de3b87aSKai Wang.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 202de3b87aSKai Wang.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 212de3b87aSKai Wang.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 222de3b87aSKai Wang.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 232de3b87aSKai Wang.\" SUCH DAMAGE. 242de3b87aSKai Wang.\" 25*ae500c1fSEd Maste.\" $Id: dwarf_formudata.3 3640 2018-10-14 14:09:13Z jkoshy $ 262de3b87aSKai Wang.\" 272de3b87aSKai Wang.Dd June 21, 2010 282de3b87aSKai Wang.Dt DWARF_FORMUDATA 3 29*ae500c1fSEd Maste.Os 302de3b87aSKai Wang.Sh NAME 312de3b87aSKai Wang.Nm dwarf_formudata , 322de3b87aSKai Wang.Nm dwarf_formsdata 332de3b87aSKai Wang.Nd return the value of a CONSTANT class attribute 342de3b87aSKai Wang.Sh LIBRARY 352de3b87aSKai Wang.Lb libdwarf 362de3b87aSKai Wang.Sh SYNOPSIS 372de3b87aSKai Wang.In libdwarf.h 382de3b87aSKai Wang.Ft int 392de3b87aSKai Wang.Fo dwarf_formudata 402de3b87aSKai Wang.Fa "Dwarf_Attribute attr" 412de3b87aSKai Wang.Fa "Dwarf_Unsigned *ret" 422de3b87aSKai Wang.Fa "Dwarf_Error *err" 432de3b87aSKai Wang.Fc 442de3b87aSKai Wang.Ft int 452de3b87aSKai Wang.Fo dwarf_formsdata 462de3b87aSKai Wang.Fa "Dwarf_Attribute attr" 472de3b87aSKai Wang.Fa "Dwarf_Signed *ret" 482de3b87aSKai Wang.Fa "Dwarf_Error *err" 492de3b87aSKai Wang.Fc 502de3b87aSKai Wang.Sh DESCRIPTION 512de3b87aSKai WangThese functions return the value associated with a DWARF attribute 522de3b87aSKai Wangdescribing a constant. 532de3b87aSKai Wang.Pp 542de3b87aSKai WangFunction 552de3b87aSKai Wang.Fn dwarf_formudata 562de3b87aSKai Wangsets the location pointed to by argument 572de3b87aSKai Wang.Ar ret 582de3b87aSKai Wangto the value of the attribute referenced by argument 592de3b87aSKai Wang.Ar attr , 602de3b87aSKai Wangtreating the value as an unsigned quantity. 612de3b87aSKai WangArgument 622de3b87aSKai Wang.Ar attr 632de3b87aSKai Wangmust have one of the following forms: 642de3b87aSKai Wang.Dv DW_FORM_data1 , 652de3b87aSKai Wang.Dv DW_FORM_data2 , 662de3b87aSKai Wang.Dv DW_FORM_data4 , 672de3b87aSKai Wang.Dv DW_FORM_data8 682de3b87aSKai Wangand 692de3b87aSKai Wang.Dv DW_FORM_udata . 702de3b87aSKai Wang.Pp 712de3b87aSKai WangFunction 722de3b87aSKai Wang.Fn dwarf_formsdata 732de3b87aSKai Wangsets the location pointed to by argument 742de3b87aSKai Wang.Ar ret 752de3b87aSKai Wangto the value of the attribute referenced by argument 762de3b87aSKai Wang.Ar attr , 772de3b87aSKai Wangappropriately sign extended. 782de3b87aSKai WangArgument 792de3b87aSKai Wang.Ar attr 802de3b87aSKai Wangmust have one of the following forms: 812de3b87aSKai Wang.Dv DW_FORM_data1 , 822de3b87aSKai Wang.Dv DW_FORM_data2 , 832de3b87aSKai Wang.Dv DW_FORM_data4 , 842de3b87aSKai Wang.Dv DW_FORM_data8 852de3b87aSKai Wangand 862de3b87aSKai Wang.Dv DW_FORM_sdata . 872de3b87aSKai Wang.Pp 882de3b87aSKai WangIf argument 892de3b87aSKai Wang.Ar err 902de3b87aSKai Wangis not NULL, it will be used to return an error descriptor in case 912de3b87aSKai Wangof an error. 922de3b87aSKai Wang.Sh RETURN VALUES 932de3b87aSKai WangThese functions return 942de3b87aSKai Wang.Dv DW_DLV_OK 952de3b87aSKai Wangon success. 962de3b87aSKai WangIn case of an error, they return 972de3b87aSKai Wang.Dv DW_DLV_ERROR 982de3b87aSKai Wangand set argument 992de3b87aSKai Wang.Ar err . 1002de3b87aSKai Wang.Sh ERRORS 1012de3b87aSKai WangThese functions may fail with the following errors: 1022de3b87aSKai Wang.Bl -tag -width ".Bq Er DW_DLE_ATTR_FORM_BAD" 1032de3b87aSKai Wang.It Bq Er DW_DLE_ARGUMENT 1042de3b87aSKai WangEither of arguments 1052de3b87aSKai Wang.Ar attr 1062de3b87aSKai Wangor 1072de3b87aSKai Wang.Ar ret 1082de3b87aSKai Wangwas NULL. 1092de3b87aSKai Wang.It Bq Er DW_DLE_ATTR_FORM_BAD 1102de3b87aSKai WangThe attribute referenced by argument 1112de3b87aSKai Wang.Ar attr 1122de3b87aSKai Wangwas not of a permitted kind. 1132de3b87aSKai Wang.El 1142de3b87aSKai Wang.Sh SEE ALSO 1152de3b87aSKai Wang.Xr dwarf 3 , 1162de3b87aSKai Wang.Xr dwarf_attr 3 , 1172de3b87aSKai Wang.Xr dwarf_formblock 3 , 1182de3b87aSKai Wang.Xr dwarf_formflag 3 , 1192de3b87aSKai Wang.Xr dwarf_formref 3 , 1202de3b87aSKai Wang.Xr dwarf_formsig8 3 , 1212de3b87aSKai Wang.Xr dwarf_formstring 3 , 1222de3b87aSKai Wang.Xr dwarf_hasattr 3 123