freebsd-nq/contrib/elftoolchain/libdwarf/dwarf_whatattr.3
Ed Maste b00fe64f4a Update to ELF Tool Chain r3197
Highlights:
 - Fix man page markup, whitespace, and typos
 - Fix sh_info of SHT_GROUP section to point to the correct string
 - Improve validation in readelf and elfcopy/strip
 - Handle DWARF 4's DW_AT_high_pc in addr2line

Sponsored by:	The FreeBSD Foundation
2015-05-14 19:48:15 +00:00

80 lines
2.4 KiB
Groff

.\" Copyright (c) 2010 Joseph Koshy
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.\" $Id: dwarf_whatattr.3 3181 2015-04-10 13:22:51Z emaste $
.\"
.Dd May 22, 2010
.Os
.Dt DWARF_WHATATTR 3
.Sh NAME
.Nm dwarf_whatattr
.Nd retrieve the attribute code for a DWARF attribute
.Sh LIBRARY
.Lb libdwarf
.Sh SYNOPSIS
.In libdwarf.h
.Ft int
.Fo dwarf_whatattr
.Fa "Dwarf_Attribute attr"
.Fa "Dwarf_Half *retcode"
.Fa "Dwarf_Error *err"
.Fc
.Sh DESCRIPTION
Function
.Fn dwarf_whatattr
retrieves the attribute code for the DWARF attribute referenced
by argument
.Ar attr ,
and writes it to the location pointed to by argument
.Ar retcode .
If argument
.Ar err
is not NULL, it will be used to return an error descriptor in case
of an error.
.Sh RETURN VALUES
On success, function
.Fn dwarf_whatattr
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_whatattr
can fail with the following error:
.Bl -tag -width ".Bq Er DW_DLE_ARGUMENT"
.It Bq Er DW_DLE_ARGUMENT
Either of argument
.Va attr
or
.Va retcode
was NULL.
.El
.Sh SEE ALSO
.Xr dwarf 3 ,
.Xr dwarf_attr 3 ,
.Xr dwarf_hasattr 3