1.\" Copyright (c) 2011 Kai Wang 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" $Id: dwarf_add_AT_const_value_string.3 2072 2011-10-27 03:26:49Z jkoshy $ 26.\" 27.Dd September 4, 2011 28.Os 29.Dt DWARF_ADD_AT_CONST_VALUE_STRING 3 30.Sh NAME 31.Nm dwarf_add_AT_const_value_signedint , 32.Nm dwarf_add_AT_const_value_string , 33.Nm dwarf_add_AT_const_value_unsignedint 34.Nd create and attach a DW_AT_const_value attribute 35.Sh LIBRARY 36.Lb libdwarf 37.Sh SYNOPSIS 38.In libdwarf.h 39.Ft Dwarf_P_Attribute 40.Fo dwarf_add_AT_const_value_signedint 41.Fa "Dwarf_P_Die die" 42.Fa "Dwarf_Signed value" 43.Fa "Dwarf_Error *err" 44.Fc 45.Ft Dwarf_P_Attribute 46.Fo dwarf_add_AT_const_value_string 47.Fa "Dwarf_P_Die die" 48.Fa "char *str" 49.Fa "Dwarf_Error *err" 50.Fc 51.Ft Dwarf_P_Attribute 52.Fo dwarf_add_AT_const_value_unsignedint 53.Fa "Dwarf_P_Die die" 54.Fa "Dwarf_Unsigned value" 55.Fa "Dwarf_Error *err" 56.Fc 57.Sh DESCRIPTION 58These functions create a 59.Dv DW_AT_const_value 60attribute descriptor and attach it to the debugging information entry 61referenced by argument 62.Ar die . 63.Pp 64Argument 65.Ar die 66should reference a debugging information entry allocated using 67.Xr dwarf_new_die 3 . 68.Pp 69Function 70.Fn dwarf_add_AT_const_value_signedint 71creates a 72.Dv DW_AT_const_value 73attribute descriptor containing the signed value specified by argument 74.Ar value . 75The created attribute descriptor will have DWARF form 76.Dv DW_FORM_sdata . 77.Pp 78Function 79.Fn dwarf_add_AT_const_value_unsignedint 80creates a 81.Dv DW_AT_const_value 82attribute descriptor containing the unsigned value specified by 83argument 84.Ar value . 85The created attribute descriptor will have DWARF form 86.Dv DW_FORM_udata . 87.Pp 88Function 89.Fn dwarf_add_AT_const_value_string 90creates a 91.Dv DW_AT_const_value 92attribute descriptor containing the string pointed to by the 93NUL-terminated argument 94.Ar str . 95The created attribute descriptor will have DWARF form 96.Dv DW_FORM_strp . 97.Pp 98If argument 99.Ar err 100is not NULL, it will be used by these functions to store error 101information in case of an error. 102.Sh RETURN VALUES 103On success, these functions return the created attribute descriptor. 104In case of an error, these functions return 105.Dv DW_DLV_BADADDR 106and set the argument 107.Ar err . 108.Sh ERRORS 109These functions can fail with: 110.Bl -tag -width ".Bq Er DW_DLE_ARGUMENT" 111.It Bq Er DW_DLE_ARGUMENT 112Either of the arguments 113.Ar die 114or 115.Ar str 116was NULL. 117.It Bq Er DW_DLE_MEMORY 118An out of memory condition was encountered during execution. 119.El 120.Sh SEE ALSO 121.Xr dwarf 3 , 122.Xr dwarf_add_AT_name 3 , 123.Xr dwarf_add_AT_signed_const 3 , 124.Xr dwarf_add_AT_string 3 , 125.Xr dwarf_add_AT_unsigned_const 3 , 126.Xr dwarf_new_die 3 127