ptrace_write_int
error = ptrace_write_int(td, td->td_frame->tf_pc + INSN_SIZE,
error_alt = ptrace_write_int(td, alt_next,
ptrace_write_int(td, td->td_md.md_ptrace_addr,
ptrace_write_int(td, td->td_md.md_ptrace_addr_alt,