DWARF_EXPR_CURRENT_OFFSET(3) |
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.