HardenedBSD/contrib/elftoolchain/libdwarf/dwarf_seterrarg.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

102 lines
3.2 KiB
Groff

.\" Copyright (c) 2010 Joseph Koshy. All rights reserved.
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.\" $Id: dwarf_seterrarg.3 3644 2018-10-15 19:55:01Z jkoshy $
.\"
.Dd May 01, 2010
.Dt DWARF_SETERRARG 3
.Os
.Sh NAME
.Nm dwarf_seterrarg ,
.Nm dwarf_seterrhand
.Nd configure error handling
.Sh LIBRARY
.Lb libdwarf
.Sh SYNOPSIS
.In libdwarf.h
.Ft Dwarf_Ptr
.Fn dwarf_seterrarg "Dwarf_Debug dbg" "Dwarf_Ptr arg"
.Ft Dwarf_Handler
.Fn dwarf_seterrhand "Dwarf_Debug dbg" "Dwarf_Handler handler"
.Sh DESCRIPTION
These functions may be used by applications to configure error handling
callbacks.
The error handling scheme used by the library is described in
.Xr dwarf 3 .
.Pp
Function
.Fn dwarf_seterrarg
may be used to set the callback argument passed to a configured
error handler at the time it is invoked.
Argument
.Ar arg
is the callback argument being set.
Argument
.Ar dbg
can be a debug context allocated by a prior call to
.Xr dwarf_init 3 ,
or can be NULL to indicate that the library-wide callback argument
is to be set.
.Pp
Function
.Fn dwarf_seterrhand
may be used to associate an error handler denoted by argument
.Ar handler
with the DWARF debug context descriptor denoted by argument
.Ar dbg .
Argument
.Ar dbg
should be a debug context allocated by a prior call to
.Xr dwarf_init 3 ,
or may be NULL to indicate that the library-wide error handler
is to be set.
.Sh RETURN VALUES
Function
.Fn dwarf_seterrhand
returns the previous error handler associated with argument
.Ar dbg .
If argument
.Ar dbg
is NULL, function
.Fn dwarf_seterrhand
returns the previous library-wide error handler.
.Pp
Function
.Fn dwarf_seterrarg
returns the previous callback argument associated with argument
.Ar dbg .
If argument
.Ar dbg
is NULL, function
.Fn dwarf_seterrarg
returns the previous library-wide callback argument.
.Sh COMPATIBILITY
The behavior of these functions when argument
.Ar dbg
is NULL is a local extension.
.Sh ERRORS
These functions do not set an error code.
.Sh SEE ALSO
.Xr dwarf 3 ,
.Xr dwarf_init 3