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+.\"	$NetBSD: dwarf_fde_cfa_offset.3,v 1.6 2024/03/03 17:37:30 christos Exp $
+.\"
+.\" Copyright (c) 2011 Kai Wang
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" Id: dwarf_fde_cfa_offset.3 3962 2022-03-12 15:56:10Z jkoshy
+.\"
+.Dd September 26, 2011
+.Dt DWARF_FDE_CFA_OFFSET 3
+.Os
+.Sh NAME
+.Nm dwarf_fde_cfa_offset
+.Nd add a DW_CFA_offset frame instruction to a DWARF frame descriptor
+.Sh LIBRARY
+.Lb libdwarf
+.Sh SYNOPSIS
+.In libdwarf.h
+.Ft "Dwarf_P_Fde"
+.Fo dwarf_fde_cfa_offset
+.Fa "Dwarf_P_Fde fde"
+.Fa "Dwarf_Unsigned reg"
+.Fa "Dwarf_Signed offset"
+.Fa "Dwarf_Error *err"
+.Fc
+.Sh DESCRIPTION
+Function
+.Fn dwarf_fde_cfa_offset
+appends a
+.Dv DW_CFA_offset
+frame instruction to the frame descriptor referenced by argument
+.Fa fde .
+.Pp
+Argument
+.Fa fde
+should reference a frame descriptor allocated using
+.Xr dwarf_new_fde 3 .
+.Pp
+Argument
+.Fa reg
+specifies the register operand for the frame instruction.
+.Pp
+Argument
+.Fa offset
+specifies the offset operand for the frame instruction.
+.Pp
+If argument
+.Fa err
+is not
+.Dv NULL ,
+it will be used to store error information in case of an error.
+.Sh RETURN VALUES
+On success, function
+.Fn dwarf_fde_cfa_offset
+returns the frame descriptor given in argument
+.Fa fde .
+In case of an error, function
+.Fn dwarf_fde_cfa_offset
+returns
+.Dv DW_DLV_BADADDR
+and sets the argument
+.Fa err .
+.Sh ERRORS
+Function
+.Fn dwarf_fde_cfa_offset
+can fail with:
+.Bl -tag -width ".Bq Er DW_DLE_ARGUMENT"
+.It Bq Er DW_DLE_ARGUMENT
+Argument
+.Fa fde
+was
+.Dv NULL .
+.It Bq Er DW_DLE_MEMORY
+An out of memory condition was encountered during the execution of the
+function.
+.El
+.Sh SEE ALSO
+.Xr dwarf 3 ,
+.Xr dwarf_add_fde_inst 3 ,
+.Xr dwarf_add_frame_cie 3 ,
+.Xr dwarf_add_frame_fde 3 ,
+.Xr dwarf_add_frame_fde_b 3 ,
+.Xr dwarf_new_fde 3