1.\"	$NetBSD: dwarf_vendor_ext.3,v 1.2 2014/03/09 16:58:04 christos Exp $
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3.\" Copyright (c) 2011 Kai Wang
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27.\" Id: dwarf_vendor_ext.3 2075 2011-10-27 03:47:28Z jkoshy
28.\"
29.Dd September 25, 2011
30.Os
31.Dt DWARF_VENDOR_EXT 3
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.Ar 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.Ar constant
61specifies a constant value for the macro information entry.
62.Pp
63Argument
64.Ar string
65point to a NUL-terminated string containing the string value
66for the macro information entry.
67.Pp
68If argument
69.Ar err
70is not NULL, it will be used to store error information in case of an
71error.
72.Pp
73The meaning of the arguments
74.Ar constant
75and
76.Ar string
77are not defined by the DWARF specification, but are instead governed
78by application and vendor conventions.
79.Sh RETURN VALUES
80On success, function
81.Fn dwarf_vendor_ext
82returns
83.Dv DW_DLV_OK .
84In case of an error, function
85.Fn dwarf_vendor_ext
86returns
87.Dv DW_DLV_ERROR
88and sets the argument
89.Ar err .
90.Sh ERRORS
91Function
92.Fn dwarf_vendor_ext
93can fail with:
94.Bl -tag -width ".Bq Er DW_DLE_ARGUMENT"
95.It Bq Er DW_DLE_ARGUMENT
96Either arguments
97.Ar dbg
98or
99.Ar string
100was NULL.
101.It Bq Er DW_DLE_MEMORY
102An out of memory condition was encountered during the execution of the
103function.
104.El
105.Sh SEE ALSO
106.Xr dwarf 3 ,
107.Xr dwarf_def_macro 3 ,
108.Xr dwarf_end_macro_file 3 ,
109.Xr dwarf_producer_init 3 ,
110.Xr dwarf_producer_init_b 3 ,
111.Xr dwarf_start_macro_file 3 ,
112.Xr dwarf_undef_macro 3
113