cf781b2e16
This brings a number of fixes to elfcopy/strip and DWARF4 improvements. Sponsored by: The FreeBSD Foundation
117 lines
3.7 KiB
Groff
117 lines
3.7 KiB
Groff
.\" Copyright (c) 2014 Kai Wang
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $Id: dwarf_get_section_max_offsets.3 3098 2014-09-02 22:18:29Z kaiwang27 $
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.\"
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.Dd July 27, 2014
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.Os
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.Dt DWARF_GET_SECTION_MAX_OFFSETS
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.Sh NAME
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.Nm dwarf_get_section_max_offsets ,
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.Nm dwarf_get_section_max_offsets_b
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.Nd return the size of DWARF sections
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.Sh LIBRARY
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.Lb libdwarf
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.Sh SYNOPSIS
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.In libdwarf.h
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.Ft int
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.Fo dwarf_get_section_max_offsets
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.Fa "Dwarf_Debug dbg"
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.Fa "Dwarf_Unsigned *debug_info"
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.Fa "Dwarf_Unsigned *debug_abbrev"
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.Fa "Dwarf_Unsigned *debug_line"
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.Fa "Dwarf_Unsigned *debug_loc"
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.Fa "Dwarf_Unsigned *debug_aranges"
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.Fa "Dwarf_Unsigned *debug_macinfo"
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.Fa "Dwarf_Unsigned *debug_pubnames"
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.Fa "Dwarf_Unsigned *debug_str"
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.Fa "Dwarf_Unsigned *debug_frame"
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.Fa "Dwarf_Unsigned *debug_ranges"
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.Fa "Dwarf_Unsigned *debug_pubtypes"
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.Fc
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.Ft int
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.Fo dwarf_get_section_max_offsets_b
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.Fa "Dwarf_Debug dbg"
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.Fa "Dwarf_Unsigned *debug_info"
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.Fa "Dwarf_Unsigned *debug_abbrev"
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.Fa "Dwarf_Unsigned *debug_line"
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.Fa "Dwarf_Unsigned *debug_loc"
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.Fa "Dwarf_Unsigned *debug_aranges"
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.Fa "Dwarf_Unsigned *debug_macinfo"
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.Fa "Dwarf_Unsigned *debug_pubnames"
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.Fa "Dwarf_Unsigned *debug_str"
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.Fa "Dwarf_Unsigned *debug_frame"
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.Fa "Dwarf_Unsigned *debug_ranges"
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.Fa "Dwarf_Unsigned *debug_pubtypes"
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.Fa "Dwarf_Unsigned *debug_types"
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.Fc
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.Sh DESCRIPTION
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Function
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.Fn dwarf_get_section_max_offsets_b
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retrieves the sizes of the DWARF sections in a DWARF debug context.
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Argument
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.Ar dbg
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should reference a DWARF debug context allocated using
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.Xr dwarf_init 3 .
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The function stores the size of each DWARF section to the location
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pointed to by the argument corresponding to the section name.
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If a DWARF section does not exist, the location pointed to by the
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argument corresponding to that section will be set to zero.
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.Pp
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A value of NULL may be used for any of the arguments
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.Ar debug_info ,
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.Ar debug_abbrev ,
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.Ar debug_line ,
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.Ar debug_loc ,
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.Ar debug_aranges ,
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.Ar debug_macinfo ,
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.Ar debug_pubnames ,
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.Ar debug_str ,
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.Ar debug_frame ,
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.Ar debug_ranges ,
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.Ar debug_pubtypes
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and
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.Ar debug_types
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if the caller is not interested in the respective section size.
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.Pp
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Function
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.Fn dwarf_get_section_max_offsets
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is identical to function
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.Fn dwarf_get_section_max_offsets_b
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except that it does not provide argument
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.Ar debug_types ,
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thus it can not retrieve the size of the
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.Dq \&.debug_types
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section.
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.Sh RETURN VALUES
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On success, these functions return
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.Dv DW_DLV_OK .
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If argument
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.Ar dbg
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is NULL, they return
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.Dv DW_DLV_ERROR .
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.Sh SEE ALSO
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.Xr dwarf 3 ,
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.Xr dwarf_init 3
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