xref: /freebsd/contrib/elftoolchain/libdwarf/dwarf_add_varname.3 (revision ae500c1ff8974130f7f2692772cf288b90349e0d)

.\" Copyright (c) 2011 Kai Wang
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.\" $Id: dwarf_add_varname.3 3640 2018-10-14 14:09:13Z jkoshy $
.\"
.Dd September 24, 2011
.Dt DWARF_ADD_VARNAME 3
.Os
.Sh NAME
.Nm dwarf_add_varname
.Nd add information about a static variable to a DWARF producer instance
.Sh LIBRARY
.Lb libdwarf
.Sh SYNOPSIS
.In libdwarf.h
.Ft "Dwarf_Unsigned"
.Fo dwarf_add_varname
.Fa "Dwarf_P_Debug dbg"
.Fa "Dwarf_P_Die die"
.Fa "char *name"
.Fa "Dwarf_Error *err"
.Fc
.Sh DESCRIPTION
Function
.Fn dwarf_add_varname
adds information about a static variable to a DWARF producer instance.
.Pp
Argument
.Ar dbg
should reference a DWARF producer instance allocated using
.Xr dwarf_producer_init 3
or
.Xr dwarf_producer_init_b 3 .
.Pp
Argument
.Ar die
specifies the debugging information entry associated with the static
variable.
.Pp
Argument
.Ar name
should point to a NUL-terminated string containing the name
of the static variable.
.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_varname
returns a non-zero value.
In case of an error, function
.Fn dwarf_add_varname
returns 0 and sets
the argument
.Ar err .
.Sh ERRORS
Function
.Fn dwarf_add_varname
can fail with:
.Bl -tag -width ".Bq Er DW_DLE_ARGUMENT"
.It Bq Er DW_DLE_ARGUMENT
One of the arguments
.Ar dbg ,
.Ar die
or
.Ar name
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_funcname 3 ,
.Xr dwarf_add_pubname 3 ,
.Xr dwarf_add_typename 3 ,
.Xr dwarf_add_weakname 3 ,
.Xr dwarf_new_die 3 ,
.Xr dwarf_producer_init 3 ,
.Xr dwarf_producer_init_b 3