freebsd-src/contrib/elftoolchain/libdwarf/dwarf_get_section_max_offsets.3
Ed Maste ae500c1ff8 Update to ELF Tool Chain r3668
Highlights:
- Make sure that only TLS sections are sorted into TLS segment.
- Fixed multiple errors in "Section to Segment mapping".
- Man page updates
- ar improvements
- elfcopy: avoid filter_reloc uninitialized variable for rela
- elfcopy: avoid stripping relocations from static binaries
- readelf: avoid printing directory in front of absolute path
- readelf: add NT_FREEBSD_FEATURE_CTL FreeBSD note type
- test improvements

NOTES:

Some of these changes originated in FreeBSD and simply reduce diffs
between contrib and vendor.

ELF Tool Chain ar is not (currently) used in FreeBSD, and there are
improvements in both FreeBSD and ELF Tool Chain ar that are not in
the other.

Sponsored by:	The FreeBSD Foundation
2019-01-10 14:35:23 +00:00

117 lines
3.8 KiB
Groff

.\" Copyright (c) 2014 Kai Wang
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.\" $Id: dwarf_get_section_max_offsets.3 3644 2018-10-15 19:55:01Z jkoshy $
.\"
.Dd December 21, 2014
.Dt DWARF_GET_SECTION_MAX_OFFSETS 3
.Os
.Sh NAME
.Nm dwarf_get_section_max_offsets ,
.Nm dwarf_get_section_max_offsets_b
.Nd return the size of DWARF sections
.Sh LIBRARY
.Lb libdwarf
.Sh SYNOPSIS
.In libdwarf.h
.Ft int
.Fo dwarf_get_section_max_offsets
.Fa "Dwarf_Debug dbg"
.Fa "Dwarf_Unsigned *debug_info"
.Fa "Dwarf_Unsigned *debug_abbrev"
.Fa "Dwarf_Unsigned *debug_line"
.Fa "Dwarf_Unsigned *debug_loc"
.Fa "Dwarf_Unsigned *debug_aranges"
.Fa "Dwarf_Unsigned *debug_macinfo"
.Fa "Dwarf_Unsigned *debug_pubnames"
.Fa "Dwarf_Unsigned *debug_str"
.Fa "Dwarf_Unsigned *debug_frame"
.Fa "Dwarf_Unsigned *debug_ranges"
.Fa "Dwarf_Unsigned *debug_pubtypes"
.Fc
.Ft int
.Fo dwarf_get_section_max_offsets_b
.Fa "Dwarf_Debug dbg"
.Fa "Dwarf_Unsigned *debug_info"
.Fa "Dwarf_Unsigned *debug_abbrev"
.Fa "Dwarf_Unsigned *debug_line"
.Fa "Dwarf_Unsigned *debug_loc"
.Fa "Dwarf_Unsigned *debug_aranges"
.Fa "Dwarf_Unsigned *debug_macinfo"
.Fa "Dwarf_Unsigned *debug_pubnames"
.Fa "Dwarf_Unsigned *debug_str"
.Fa "Dwarf_Unsigned *debug_frame"
.Fa "Dwarf_Unsigned *debug_ranges"
.Fa "Dwarf_Unsigned *debug_pubtypes"
.Fa "Dwarf_Unsigned *debug_types"
.Fc
.Sh DESCRIPTION
Function
.Fn dwarf_get_section_max_offsets_b
retrieves the sizes of the DWARF sections in a DWARF debug context.
Argument
.Ar dbg
should reference a DWARF debug context allocated using
.Xr dwarf_init 3 .
The function stores the size of each DWARF section to the location
pointed to by the argument corresponding to the section name.
If a DWARF section does not exist, the location pointed to by the
argument corresponding to that section will be set to zero.
.Pp
A value of NULL may be used for any of the arguments
.Ar debug_info ,
.Ar debug_abbrev ,
.Ar debug_line ,
.Ar debug_loc ,
.Ar debug_aranges ,
.Ar debug_macinfo ,
.Ar debug_pubnames ,
.Ar debug_str ,
.Ar debug_frame ,
.Ar debug_ranges ,
.Ar debug_pubtypes
and
.Ar debug_types
if the caller is not interested in the respective section size.
.Pp
Function
.Fn dwarf_get_section_max_offsets
is identical to function
.Fn dwarf_get_section_max_offsets_b
except that it does not provide argument
.Ar debug_types ,
and thus cannot return the size of the
.Dq \&.debug_types
section.
.Sh RETURN VALUES
On success, these functions return
.Dv DW_DLV_OK .
If argument
.Ar dbg
is NULL, they return
.Dv DW_DLV_ERROR .
.Sh SEE ALSO
.Xr dwarf 3 ,
.Xr dwarf_init 3