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DWARF_ADD_AT_LOCATION... BSD Library Functions Manual DWARF_ADD_AT_LOCATION...

NAME
     dwarf_add_AT_location_expr	-- create an attribute descriptor for a	loca-
     tion 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 us-
     ing dwarf_new_die(3).

     Argument attr specifies the attribute code	of the created attribute de-
     scriptor.

     Argument loc_expr should reference	a location expression descriptor allo-
     cated 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 informa-
     tion in case of an	error.

RETURN VALUES
     On	success, function dwarf_add_AT_location_expr() returns the created at-
     tribute 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

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | SEE ALSO

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