freebsd-dev/contrib/elftoolchain/libdwarf/dwarf_get_address_size.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

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Groff

.\" Copyright (c) 2010 Kai Wang
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.\" $Id: dwarf_get_address_size.3 3644 2018-10-15 19:55:01Z jkoshy $
.\"
.Dd April 14, 2010
.Dt DWARF_GET_ADDRESS_SIZE 3
.Os
.Sh NAME
.Nm dwarf_get_address_size
.Nd return the number of bytes needed to represent an address
.Sh LIBRARY
.Lb libdwarf
.Sh SYNOPSIS
.In libdwarf.h
.Ft int
.Fo dwarf_get_address_size
.Fa "Dwarf_Debug dbg"
.Fa "Dwarf_Half *addr_size"
.Fa "Dwarf_Error *err"
.Fc
.Sh DESCRIPTION
Function
.Fn dwarf_get_address_size
returns the size in bytes of a native address for a program object.
.Pp
Argument
.Ar dbg
should denote a DWARF debug context created from a program object using
.Xr dwarf_init 3 .
Argument
.Ar addr_size
should point to a location that will hold the returned size.
Argument
.Ar err ,
if non-NULL, it will be used to return error information.
.Sh RETURN VALUES
On success, function
.Fn dwarf_tag
returns
.Dv DW_DLV_OK .
In case of an error, it returns
.Dv DW_DLV_ERROR
and sets argument
.Ar err .
.Sh ERRORS
Function
.Fn dwarf_get_address_size
can fail with the following error:
.Bl -tag -width ".Bq Er DW_DLE_ARGUMENT"
.It Bq Er DW_DLE_ARGUMENT
Either of arguments
.Ar dbg
or
.Ar addr_size
was NULL.
.El
.Sh SEE ALSO
.Xr dwarf 3 ,
.Xr dwarf_finish 3 ,
.Xr dwarf_init 3