* linux/*/get_error.c: Rename all arch-specific implementations of get_error() to arch_get_error(). * linux/*/get_syscall_args.c: Rename all arch-specific implementations of get_syscall_args() to arch_get_syscall_args(). * syscall.c (get_syscall_args, get_error): New functions. (tamper_with_syscall_exiting, get_syscall_result): Do not clear tcp->u_error before get_error() invocation as the latter does it now.