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_CONST_VALUE_STRING(3)			   BSD Library Functions Manual 			DWARF_ADD_AT_CONST_VALUE_STRING(3)

NAME

     dwarf_add_AT_const_value_signedint, dwarf_add_AT_const_value_string, dwarf_add_AT_const_value_unsignedint -- create and attach a
     DW_AT_const_value attribute

LIBRARY

     DWARF Access Library (libdwarf, -ldwarf)

SYNOPSIS

     #include <libdwarf.h>

     Dwarf_P_Attribute
     dwarf_add_AT_const_value_signedint(Dwarf_P_Die die, Dwarf_Signed value, Dwarf_Error *err);

     Dwarf_P_Attribute
     dwarf_add_AT_const_value_string(Dwarf_P_Die die, char *str, Dwarf_Error *err);

     Dwarf_P_Attribute
     dwarf_add_AT_const_value_unsignedint(Dwarf_P_Die die, Dwarf_Unsigned value, Dwarf_Error *err);

DESCRIPTION

     These functions create a DW_AT_const_value attribute descriptor and attach it to the debugging information entry referenced by argument die.

     Argument die should reference a debugging information entry allocated using dwarf_new_die(3).

     Function dwarf_add_AT_const_value_signedint() creates a DW_AT_const_value attribute descriptor containing the signed value specified by argu-
     ment value.  The created attribute descriptor will have DWARF form DW_FORM_sdata.

     Function dwarf_add_AT_const_value_unsignedint() creates a DW_AT_const_value attribute descriptor containing the unsigned value specified by
     argument value.  The created attribute descriptor will have DWARF form DW_FORM_udata.

     Function dwarf_add_AT_const_value_string() creates a DW_AT_const_value attribute descriptor containing the string pointed to by the NUL-ter-
     minated argument str.  The created attribute descriptor will have DWARF form DW_FORM_strp.

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

RETURN VALUES

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

ERRORS

     These functions can fail with:

     [DW_DLE_ARGUMENT]	Either of the arguments die or str was NULL.

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

SEE ALSO

     dwarf(3), dwarf_add_AT_name(3), dwarf_add_AT_signed_const(3), dwarf_add_AT_string(3), dwarf_add_AT_unsigned_const(3), dwarf_new_die(3)

BSD
								 September 4, 2011							       BSD