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+.\" 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_add_frame_fde.3 2072 2011-10-27 03:26:49Z jkoshy $
+.\"
+.Dd September 26, 2011
+.Os
+.Dt DWARF_ADD_FRAME_FDE 3
+.Sh NAME
+.Nm dwarf_add_frame_fde
+.Nd add a call frame descriptor to a DWARF producer instance
+.Sh LIBRARY
+.Lb libdwarf
+.Sh SYNOPSIS
+.In libdwarf.h
+.Ft "Dwarf_Unsigned"
+.Fo dwarf_add_frame_fde
+.Fa "Dwarf_P_Debug dbg"
+.Fa "Dwarf_P_Fde fde"
+.Fa "Dwarf_P_Die die"
+.Fa "Dwarf_Unsigned cie"
+.Fa "Dwarf_Addr virt_addr"
+.Fa "Dwarf_Unsigned code_len"
+.Fa "Dwarf_Unsigned symbol_index"
+.Fa "Dwarf_Error *err"
+.Fc
+.Ft "Dwarf_Unsigned"
+.Fo dwarf_add_frame_fde_b
+.Fa "Dwarf_P_Debug dbg"
+.Fa "Dwarf_P_Fde fde"
+.Fa "Dwarf_P_Die die"
+.Fa "Dwarf_Unsigned cie"
+.Fa "Dwarf_Addr virt_addr"
+.Fa "Dwarf_Unsigned code_len"
+.Fa "Dwarf_Unsigned symbol_index"
+.Fa "Dwarf_Unsigned end_symbol_index"
+.Fa "Dwarf_Addr offset_from_end_sym"
+.Fa "Dwarf_Error *err"
+.Fc
+.Sh DESCRIPTION
+Function
+.Fn dwarf_add_frame_fde_b
+adds the call frame descriptor referenced by argument
+.Ar fde
+to a producer instance.
+.Pp
+Argument
+.Ar dbg
+should reference a DWARF producer instance allocated using
+.Xr dwarf_producer_init 3
+or
+.Xr dwarf_producer_init_b 3 .
+.Pp
+Argument
+.Ar fde
+should reference a frame descriptor allocated using
+.Xr dwarf_new_fde 3 .
+.Pp
+Argument
+.Ar die
+is ignored by this implementation of the
+.Lb libdwarf .
+.Pp
+Argument
+.Ar cie
+specifies the index of call frame common information entry for
+the frame descriptor.
+Valid indices are those returned by the function
+.Xr dwarf_add_frame_cie 3 .
+.Pp
+Argument
+.Ar symbol_index
+specifies the ELF symbol index of the first symbol to be used for
+relocation.
+.Pp
+The meaning of the arguments
+.Ar virt_addr ,
+.Ar code_len
+and
+.Ar offset_from_end_sym
+depend on the value of argument
+.Ar end_symbol_index :
+.Bl -bullet
+.It
+If the argument
+.Ar end_symbol_index
+is zero, the argument
+.Ar virt_addr
+specifies the relocatable address of the start of the function
+associated with the frame descriptor, the argument
+.Ar code_len
+specifies the size in bytes of the machine instructions for this
+function, the argument
+.Ar symbol_index
+specifies the ELF symbol to be used for relocating the address in
+argument
+.Ar virt_addr ,
+and the argument
+.Ar offset_from_end_symbol
+is ignored.
+.It
+If the argument
+.Ar end_symbol_index
+is non-zero, it specifies the ELF symbol index of the second symbol to
+be used for relocation.
+In this case, the argument
+.Ar virt_addr
+specifies an offset from the relocatable symbol specified by argument
+.Ar symbol_index ,
+the argument
+.Ar offset_from_end_symbol
+should specify an offset from the symbol named by the argument
+.Ar end_symbol_index ,
+and the argument
+.Ar code_len
+will be ignored.
+The
+.Dv DW_DLC_SYMBOLIC_RELOCATIONS
+flag should also have been set on the DWARF producer instance.
+.Pp
+Application code can retrieve the relocation entries for the symbol
+pair by calling function
+.Xr dwarf_get_relocation_info 3 .
+The relocation entry for the first symbol will have type
+.Dv dwarf_drt_first_of_length_pair
+and the relocation entry for the second symbol will have type
+.Dv dwarf_drt_second_of_length_pair .
+.El
+.Pp
+If argument
+.Ar err
+is not NULL, it will be used to store error information in case
+of an error.
+.Pp
+Function
+.Fn dwarf_add_frame_fde
+is similar to function
+.Fn dwarf_add_frame_fde_b
+except that it supports only one relocation symbol.
+.Sh RETURN VALUES
+On success, these functions return the index value for
+the added frame descriptor.
+In case of an error, these functions return
+.Dv DW_DLV_NOCOUNT
+and set the argument
+.Ar err .
+.Sh ERRORS
+These functions can fail with:
+.Bl -tag -width ".Bq Er DW_DLE_ARGUMENT"
+.It Bq Er DW_DLE_ARGUMENT
+One of the arguments
+.Ar dbg
+or
+.Ar fde
+was NULL.
+.It Bq Er DW_DLE_ARGUMENT
+The frame descriptor referenced by argument
+.Ar fde
+did not belong to the producer instance referenced by argument
+.Ar dbg .
+.It Bq Er DW_DLE_ARGUMENT
+The common information entry index specified by argument
+.Ar cie
+was invalid.
+.It Bq Er DW_DLE_ARGUMENT
+Argument
+.Ar end_symbol_index
+was non-zero, but the flag
+.Dv DW_DLC_SYMBOLIC_RELOCATIONS
+was not set on the producer instance.
+.El
+.Sh SEE ALSO
+.Xr dwarf 3 ,
+.Xr dwarf_add_fde_inst 3 ,
+.Xr dwarf_add_frame_cie 3 ,
+.Xr dwarf_fde_cfa_offset 3 ,
+.Xr dwarf_get_relocation_info 3 ,
+.Xr dwarf_new_fde 3 ,
+.Xr dwarf_producer_init 3 ,
+.Xr dwarf_producer_init_b 3