freebsd-skq/contrib/elftoolchain/libdwarf/dwarf_diename.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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2.7 KiB
Groff

.\" Copyright (c) 2010 Kai Wang
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.\" $Id: dwarf_diename.3 3644 2018-10-15 19:55:01Z jkoshy $
.\"
.Dd March 31, 2010
.Dt DWARF_DIENAME 3
.Os
.Sh NAME
.Nm dwarf_diename
.Nd retrieve the name associated with a debugging information entry
.Sh LIBRARY
.Lb libdwarf
.Sh SYNOPSIS
.In libdwarf.h
.Ft int
.Fn dwarf_diename "Dwarf_Die die" "char **ret_name" "Dwarf_Error *err"
.Sh DESCRIPTION
Function
.Fn dwarf_diename
retrieves a pointer to the NUL-terminated string associated with the
.Dv DW_AT_name
attribute of the debugging information entry descriptor referenced by
argument
.Ar die .
If the pointer was successfully retrieved, it is stored in the location
pointed to by argument
.Ar ret_name .
.Sh RETURN VALUES
Function
.Fn dwarf_diename
returns
.Dv DW_DLV_OK
on success.
.Pp
If the debugging information entry descriptor denoted by argument
.Ar die
does not contain a
.Dv DW_AT_name
attribute, the function returns
.Dv DW_DLV_NO_ENTRY
and sets argument
.Ar err .
For other errors, it returns
.Dv DW_DLV_ERROR
and sets argument
.Ar err .
.Sh ERRORS
Function
.Fn dwarf_diename
can fail with the following errors:
.Bl -tag -width ".Bq Er DW_DLE_ARGUMENT"
.It Bq Er DW_DLE_ARGUMENT
Either of arguments
.Ar die
or
.Ar ret_name
was NULL.
.It Bq Er DW_DLE_NO_ENTRY
Argument
.Ar die
had no
.Dv DW_AT_name
attribute.
.El
.Sh SEE ALSO
.Xr dwarf 3 ,
.Xr dwarf_die_abbrev_code 3 ,
.Xr dwarf_dieoffset 3 ,
.Xr dwarf_tag 3