dwarf_add_at_location_expr(3) [freebsd man page]

DWARF_ADD_AT_LOCATION_EXPR(3)				   BSD Library Functions Manual 			     DWARF_ADD_AT_LOCATION_EXPR(3)

NAME

     dwarf_add_AT_location_expr -- create an attribute descriptor for a location expression

LIBRARY

     DWARF Access Library (libdwarf, -ldwarf)

SYNOPSIS

     #include <libdwarf.h>

     Dwarf_P_Attribute
     dwarf_add_AT_location_expr(Dwarf_P_Debug dbg, Dwarf_P_Die die, Dwarf_Half attr, Dwarf_P_Expr loc_expr, Dwarf_Error *err);

DESCRIPTION

     Function dwarf_add_AT_location_expr() creates an attribute descriptor for a location expression and attaches it to the debugging information
     entry referenced by argument die.

     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 specifies the attribute code of the created attribute descriptor.

     Argument loc_expr should reference a location expression descriptor allocated using dwarf_new_expr(3).

     The attribute created by function dwarf_add_AT_location_expr() will have one of the DWARF forms DW_FORM_block, DW_FORM_block1, DW_FORM_block2
     or DW_FORM_block4, depending on the size of the byte stream generated by the location expression descriptor referenced by argument loc_expr.

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

RETURN VALUES

     On success, function dwarf_add_AT_location_expr() returns the created attribute descriptor.  In case of an error, function
     dwarf_add_AT_location_expr() returns DW_DLV_BADADDR and sets the argument err.

ERRORS

     Function dwarf_add_AT_location_expr() can fail with:

     [DW_DLE_ARGUMENT]	One of the arguments dbg, die or loc_expr was NULL.

     [DW_DLE_MEMORY]	An out of memory condition was encountered during the execution of the function.

SEE ALSO

     dwarf(3), dwarf_new_die(3), dwarf_new_expr(3), dwarf_producer_init(3), dwarf_producer_init_b(3)

BSD
								 September 5, 2011							       BSD

DWARF_ADD_AT_TARG_ADDRESS(3)				   BSD 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)

BSD
								 September 4, 2011							       BSD