DWARF_ADD_AT_TARG_ADDRESS(3)

DWARF_ADD_AT_TARG_ADDRESS(3) | Library Functions Manual | DWARF_ADD_AT_TARG_ADDRESS(3)

# NAME

`dwarf_add_AT_targ_address`, `dwarf_add_AT_targ_address_b` —
create and attach address class attributes

# LIBRARY

DWARF Access Library (libdwarf, -ldwarf)

# SYNOPSIS

`#include <libdwarf.h>`

Dwarf_P_Attribute
`dwarf_add_AT_targ_address`(Dwarf_P_Debug dbg, Dwarf_P_Die die, Dwarf_Half attr, Dwarf_Unsigned pc_value, Dwarf_Signed sym_index, Dwarf_Error *err);

Dwarf_P_Attribute
`dwarf_add_AT_targ_address_b`(Dwarf_P_Debug dbg, Dwarf_P_Die die, Dwarf_Half attr, Dwarf_Unsigned pc_value, Dwarf_Unsigned sym_index, Dwarf_Error *err);

# DESCRIPTION

Function `dwarf_add_AT_targ_address_b`() creates an attribute descriptor belonging to the ‘address’ class and attaches it to the debugging information entry referenced by argument die.

The created attribute descriptor will have DWARF form `DW_FORM_addr`. If flag `DW_DLC_SIZE_64` is set on the producer instance, the attribute value will be 8 bytes in size. Otherwise the attribute value will be 4 bytes in size.

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 pc_value should hold a relocatable address value which will become the value of the created attribute descriptor.

Argument sym_index should specify the ELF symbol index of the symbol to be used for relocating the address value.

If argument err is not NULL, it will be used to store error information in case of an error.

Function `dwarf_add_AT_targ_address`() is deprecated. It is similar to function `dwarf_add_AT_targ_address_b`() except that it cannot handle all possible symbol index values.

# RETURN VALUES

On success, these functions return the created attribute descriptor. In case of an error, these functions return `DW_DLV_BADADDR` and sets the argument err.

# ERRORS

These functions can fail with:

[`DW_DLE_ARGUMENT`]
  Either of the arguments dbg or die was NULL.
[`DW_DLE_MEMORY`]
  An out of memory condition was encountered during execution.

# SEE ALSO

dwarf(3), dwarf_add_AT_const_value_unsignedint(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)

September 4, 2011 | NetBSD 9.0