dwarf_add_at_reference(3) [freebsd man page]

DWARF_ADD_AT_REFERENCE(3)				   BSD Library Functions Manual 				 DWARF_ADD_AT_REFERENCE(3)

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)

BSD
								 September 4, 2011							       BSD

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