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

100 lines
2.9 KiB
Groff

.\" Copyright (c) 2011 Kai Wang
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.\" $Id: dwarf_add_AT_comp_dir.3 3640 2018-10-14 14:09:13Z jkoshy $
.\"
.Dd September 4, 2011
.Dt DWARF_ADD_AT_COMP_DIR 3
.Os
.Sh NAME
.Nm dwarf_add_AT_comp_dir
.Nd create and attach a DW_AT_comp_dir attribute
.Sh LIBRARY
.Lb libdwarf
.Sh SYNOPSIS
.In libdwarf.h
.Ft Dwarf_P_Attribute
.Fo dwarf_add_AT_comp_dir
.Fa "Dwarf_P_Die die"
.Fa "char *dir"
.Fa "Dwarf_Error *err"
.Fc
.Sh DESCRIPTION
Function
.Fn dwarf_add_AT_comp_dir
creates a
.Dv DW_AT_comp_dir
attribute descriptor and attaches it to the debugging information
entry referenced by argument
.Ar die .
The created attribute will have DWARF form
.Dv DW_FORM_strp .
.Pp
Argument
.Ar die
should reference a debugging information entry allocated using
.Xr dwarf_new_die 3 .
.Pp
Argument
.Ar dir
should point to a NUL-terminated string which will become the value of
the created attribute.
.Pp
If argument
.Ar err
is not NULL, it will be used to store error information in case
of an error.
.Sh RETURN VALUES
On success, function
.Fn dwarf_add_AT_comp_dir
returns the created attribute descriptor.
In case of an error, function
.Fn dwarf_add_AT_comp_dir
returns
.Dv DW_DLV_BADADDR
and sets the argument
.Ar err .
.Sh ERRORS
Function
.Fn dwarf_add_AT_comp_dir
can fail with:
.Bl -tag -width ".Bq Er DW_DLE_ARGUMENT"
.It Bq Er DW_DLE_ARGUMENT
Either of the arguments
.Ar die
or
.Ar dir
was NULL.
.It Bq Er DW_DLE_MEMORY
An out of memory condition was encountered during the execution of the
function.
.El
.Sh SEE ALSO
.Xr dwarf 3 ,
.Xr dwarf_add_AT_const_value_string 3 ,
.Xr dwarf_add_AT_name 3 ,
.Xr dwarf_add_AT_producer 3 ,
.Xr dwarf_add_AT_string 3 ,
.Xr dwarf_new_die 3