{
va_list ap;
pid_t pid;
- void *addr, *data, *addr2;
+ void *addr, *data, *addr2 = 0;
long ret, result;
va_start(ap, req);
pid = va_arg(ap, pid_t);
addr = va_arg(ap, void *);
data = va_arg(ap, void *);
- addr2 = va_arg(ap, void *);
+ /* PTRACE_{READ,WRITE}{DATA,TEXT} (16...19) are specific to SPARC. */
+#ifdef PTRACE_READDATA
+ if ((unsigned)req - PTRACE_READDATA < 4)
+ addr2 = va_arg(ap, void *);
+#endif
va_end(ap);
if (req-1U < 3) data = &result;