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 11.0