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DWARF_EXPR_CURRENT_OFFSET(3) FreeBSD Library Functions Manual
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)
FreeBSD 14.0-RELEASE-p11 September 13, 2011 FreeBSD 14.0-RELEASE-p11