xref: /freebsd/contrib/elftoolchain/libdwarf/dwarf_add_die_to_debug.3 (revision dd41de95a84d979615a2ef11df6850622bf6184e)
1.\" Copyright (c) 2011 Kai Wang
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25.\" $Id: dwarf_add_die_to_debug.3 3640 2018-10-14 14:09:13Z jkoshy $
26.\"
27.Dd August 21, 2011
28.Dt DWARF_ADD_DIE_TO_DEBUG 3
29.Os
30.Sh NAME
31.Nm dwarf_add_die_to_debug
32.Nd set the root debugging information entry
33.Sh LIBRARY
34.Lb libdwarf
35.Sh SYNOPSIS
36.In libdwarf.h
37.Ft Dwarf_Unsigned
38.Fo dwarf_add_die_to_debug
39.Fa "Dwarf_P_Debug dbg"
40.Fa "Dwarf_P_Die first_die"
41.Fa "Dwarf_Error *err"
42.Fc
43.Sh DESCRIPTION
44Function
45.Fn dwarf_add_die_to_debug
46sets the root debugging information entry of a DWARF producer
47instance.
48All debugging information entries linked to the root entry will also
49be added to the producer instance.
50.Pp
51Argument
52.Ar dbg
53should reference a DWARF producer instance allocated using
54.Xr dwarf_producer_init 3
55or
56.Xr dwarf_producer_init_b 3 .
57.Pp
58Argument
59.Ar first_die
60should hold the debugging information entry which will become
61the root DIE.
62.Pp
63If argument
64.Ar err
65is not NULL, it will be used to store error information in case
66of an error.
67.Sh RETURN VALUES
68On success, function
69.Fn dwarf_add_die_to_debug
70returns
71.Dv DW_DLV_OK .
72In case of an error, function
73.Fn dwarf_add_die_to_debug
74returns
75.Dv DW_DLV_NOCOUNT
76and sets the argument
77.Ar err .
78.Sh ERRORS
79Function
80.Fn dwarf_add_die_to_debug
81can fail with:
82.Bl -tag -width ".Bq Er DW_DLE_ARGUMENT"
83.It Bq Er DW_DLE_ARGUMENT
84Either of the arguments
85.Ar dbg
86or
87.Ar first_die
88was NULL.
89.El
90.Sh SEE ALSO
91.Xr dwarf 3 ,
92.Xr dwarf_die_link 3 ,
93.Xr dwarf_new_die 3 ,
94.Xr dwarf_producer_init 3 ,
95.Xr dwarf_producer_init_b 3
96