freebsd man page for dwarf_expr_current_offset

DWARF_EXPR_CURRENT_OFFSET(3)				   BSD Library Functions Manual 			      DWARF_EXPR_CURRENT_OFFSET(3)

NAME
     dwarf_expr_current_offset -- retrieve the number of bytes in a location expression stream

LIBRARY
     DWARF Access Library (libdwarf, -ldwarf)

SYNOPSIS
     #include <libdwarf.h>

     Dwarf_Unsigned
     dwarf_expr_current_offset(Dwarf_P_Expr expr, Dwarf_Error *err);

DESCRIPTION
     Function dwarf_expr_current_offset() returns the size in bytes of the stream representation of a location expression.

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

     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_expr_current_offset() returns the size in bytes of the location descriptor's stream representation.  In case of an
     error, function dwarf_expr_current_offset() returns DW_DLV_NOCOUNT and sets the argument err.

ERRORS
     Function dwarf_expr_current_offset() can fail with:

     [DW_DLE_ARGUMENT]	Argument expr was NULL.

SEE ALSO
     dwarf(3), dwarf_add_expr_addr(3), dwarf_add_expr_addr_b(3), dwarf_add_expr_gen(3), dwarf_expr_into_block(3), dwarf_new_expr(3)

BSD
								September 13, 2011							       BSD