NAME
dwarf_add_AT_reference —
create and
attach an attribute that references another DIE
LIBRARY
DWARF Access Library (libdwarf, -ldwarf)
SYNOPSIS
#include <libdwarf.h>
Dwarf_P_Attribute
dwarf_add_AT_reference(
Dwarf_P_Debug
dbg,
Dwarf_P_Die die,
Dwarf_Half
attr,
Dwarf_P_Die ref_die,
Dwarf_Error *err);
DESCRIPTION
Function
dwarf_add_AT_reference() creates an attribute
descriptor that references another debugging information entry in the same
compilation unit. The attribute will be of DWARF form
DW_FORM_ref4
or
DW_FORM_ref8
depending on the target address size, and will contain the section-relative
offset of the referenced debugging information entry as its value.
Argument
dbg should reference a DWARF producer instance
allocated using
dwarf_producer_init(3)
or
dwarf_producer_init_b(3).
Argument
die should reference a debugging information
entry allocated using
dwarf_new_die(3).
Argument
attr should specify the attribute code of the
created attribute descriptor.
Argument
ref_die should hold the debugging information
entry descriptor that the attribute should refer to.
If argument
err is not NULL, it will be used to store
error information in case of an error.
RETURN VALUES
On success, function
dwarf_add_AT_reference() returns the
created attribute descriptor. In case of an error, function
dwarf_add_AT_reference() returns
DW_DLV_BADADDR
and sets the argument
err.
ERRORS
Function
dwarf_add_AT_reference() can fail with:
-
-
- [
DW_DLE_ARGUMENT
]
- One of the arguments dbg,
die or ref_die was NULL.
-
-
- [
DW_DLE_MEMORY
]
- An out of memory condition was encountered during the
execution of the function.
SEE ALSO
dwarf(3),
dwarf_add_AT_dataref(3),
dwarf_add_AT_ref_address(3),
dwarf_add_AT_signed_const(3),
dwarf_add_AT_unsigned_const(3),
dwarf_new_die(3),
dwarf_producer_init(3),
dwarf_producer_init_b(3)