1.\" $NetBSD: dwarf_vendor_ext.3,v 1.6 2024/03/03 17:37:32 christos Exp $ 2.\" 3.\" Copyright (c) 2011 Kai Wang 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 15.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25.\" SUCH DAMAGE. 26.\" 27.\" Id: dwarf_vendor_ext.3 3963 2022-03-12 16:07:32Z jkoshy 28.\" 29.Dd September 25, 2011 30.Dt DWARF_VENDOR_EXT 3 31.Os 32.Sh NAME 33.Nm dwarf_vendor_ext 34.Nd add vendor-specific macro information to a DWARF producer instance 35.Sh LIBRARY 36.Lb libdwarf 37.Sh SYNOPSIS 38.In libdwarf.h 39.Ft "int" 40.Fo dwarf_vendor_ext 41.Fa "Dwarf_P_Debug dbg" 42.Fa "Dwarf_Unsigned constant" 43.Fa "char *string" 44.Fa "Dwarf_Error *err" 45.Fc 46.Sh DESCRIPTION 47Function 48.Fn dwarf_vendor_ext 49adds a vendor-specific macro information entry to a DWARF producer 50instance. 51.Pp 52Argument 53.Fa dbg 54should reference a DWARF producer instance allocated using 55.Xr dwarf_producer_init 3 56or 57.Xr dwarf_producer_init_b 3 . 58.Pp 59Argument 60.Fa constant 61specifies a constant value for the macro information entry. 62.Pp 63Argument 64.Fa string 65point to a NUL-terminated string containing the string value 66for the macro information entry. 67.Pp 68If argument 69.Fa err 70is not 71.Dv NULL , 72it will be used to store error information in case of an error. 73.Pp 74The meaning of the arguments 75.Fa constant 76and 77.Fa string 78are not defined by the DWARF specification, but are instead governed 79by application and vendor conventions. 80.Sh RETURN VALUES 81On success, function 82.Fn dwarf_vendor_ext 83returns 84.Dv DW_DLV_OK . 85In case of an error, function 86.Fn dwarf_vendor_ext 87returns 88.Dv DW_DLV_ERROR 89and sets the argument 90.Fa err . 91.Sh ERRORS 92Function 93.Fn dwarf_vendor_ext 94can fail with: 95.Bl -tag -width ".Bq Er DW_DLE_ARGUMENT" 96.It Bq Er DW_DLE_ARGUMENT 97Either arguments 98.Fa dbg 99or 100.Fa string 101was 102.Dv NULL . 103.It Bq Er DW_DLE_MEMORY 104An out of memory condition was encountered during the execution of the 105function. 106.El 107.Sh SEE ALSO 108.Xr dwarf 3 , 109.Xr dwarf_def_macro 3 , 110.Xr dwarf_end_macro_file 3 , 111.Xr dwarf_producer_init 3 , 112.Xr dwarf_producer_init_b 3 , 113.Xr dwarf_start_macro_file 3 , 114.Xr dwarf_undef_macro 3 115