141 lines
4.1 KiB
Groff
141 lines
4.1 KiB
Groff
.\" 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_set_frame_cfa_value.3 2075 2011-10-27 03:47:28Z jkoshy $
|
|
.\"
|
|
.Dd June 18, 2011
|
|
.Os
|
|
.Dt DWARF_SET_FRAME_CFA_VALUE 3
|
|
.Sh NAME
|
|
.Nm dwarf_set_frame_cfa_value ,
|
|
.Nm dwarf_set_frame_rule_initial_value ,
|
|
.Nm dwarf_set_frame_rule_table_size ,
|
|
.Nm dwarf_set_frame_same_value ,
|
|
.Nm dwarf_set_frame_undefined_value
|
|
.Nd set internal register rule table parameters
|
|
.Sh LIBRARY
|
|
.Lb libdwarf
|
|
.Sh SYNOPSIS
|
|
.In libdwarf.h
|
|
.Ft Dwarf_Half
|
|
.Fo dwarf_set_frame_cfa_value
|
|
.Fa "Dwarf_Debug dbg"
|
|
.Fa "Dwarf_Half value"
|
|
.Fc
|
|
.Ft Dwarf_Half
|
|
.Fo dwarf_set_frame_rule_initial_value
|
|
.Fa "Dwarf_Debug dbg"
|
|
.Fa "Dwarf_Half value"
|
|
.Fc
|
|
.Ft Dwarf_Half
|
|
.Fo dwarf_set_frame_rule_table_size
|
|
.Fa "Dwarf_Debug dbg"
|
|
.Fa "Dwarf_Half value"
|
|
.Fc
|
|
.Ft Dwarf_Half
|
|
.Fo dwarf_set_frame_same_value
|
|
.Fa "Dwarf_Debug dbg"
|
|
.Fa "Dwarf_Half value"
|
|
.Fc
|
|
.Ft Dwarf_Half
|
|
.Fo dwarf_set_frame_undefined_value
|
|
.Fa "Dwarf_Debug dbg"
|
|
.Fa "Dwarf_Half value"
|
|
.Fc
|
|
.Sh DESCRIPTION
|
|
These functions set the parameters of the internal register
|
|
rule table.
|
|
.Pp
|
|
Argument
|
|
.Ar dbg
|
|
should reference a DWARF debug context allocated using
|
|
.Xr dwarf_init 3 .
|
|
.Pp
|
|
Argument
|
|
.Ar value
|
|
should hold the parameter value to set.
|
|
.Pp
|
|
Function
|
|
.Fn dwarf_set_frame_cfa_value
|
|
sets the column number for the CFA register rule in the internal
|
|
register rule table.
|
|
The constant
|
|
.Dv DW_FRAME_CFA_COL
|
|
is the default CFA register column number for DWARF2-only
|
|
interfaces, and the constant
|
|
.Dv DW_FRAME_CFA_COL3
|
|
is the default CFA column number for DWARF3-compatible interfaces.
|
|
.Pp
|
|
Function
|
|
.Fn dwarf_set_frame_rule_initial_value
|
|
sets the initial value of the register rules in the internal register
|
|
rule table.
|
|
The default initial value is the constant
|
|
.Dv DW_FRAME_REG_INITIAL_VALUE ,
|
|
defined in the header file
|
|
.In libdwarf.h .
|
|
.Pp
|
|
Function
|
|
.Fn dwarf_set_frame_rule_table_size
|
|
sets the maxmium number of columns of the internal register rule table.
|
|
Argument
|
|
.Ar value
|
|
should be at least as large as the number of real registers in the ABI.
|
|
.Pp
|
|
Function
|
|
.Fn dwarf_set_frame_same_value
|
|
sets the register number representing the
|
|
.Dq "same value"
|
|
register rule.
|
|
The default register number for the
|
|
.Dq "same value"
|
|
rule is the constant
|
|
.Dv DW_FRAME_SAME_VAL ,
|
|
defined in the header file
|
|
.In libdwarf.h .
|
|
.Pp
|
|
Function
|
|
.Fn dwarf_set_frame_undefined_value
|
|
sets the register number representing the
|
|
.Dq undefined
|
|
register rule.
|
|
The default register number for the
|
|
.Dq undefined
|
|
rule is the constant
|
|
.Dv DW_FRAME_UNDEFINED_VAL ,
|
|
defined in the header file
|
|
.In libdwarf.h .
|
|
.Sh RETURN VALUES
|
|
These functions return the previous value of the parameter being
|
|
set.
|
|
.Sh SEE ALSO
|
|
.Xr dwarf 3 ,
|
|
.Xr dwarf_get_fde_at_pc 3 ,
|
|
.Xr dwarf_get_fde_info_for_all_regs 3 ,
|
|
.Xr dwarf_get_fde_info_for_all_regs3 3 ,
|
|
.Xr dwarf_get_fde_info_for_cfa_reg3 3 ,
|
|
.Xr dwarf_get_fde_info_for_reg 3 ,
|
|
.Xr dwarf_get_fde_info_for_reg3 3 ,
|
|
.Xr dwarf_get_fde_n 3
|