#define PTRACE_OLDSETOPTIONS 21
#define PTRACE_GET_THREAD_AREA 22
+
+#define PTRACE_SET_SYSCALL 23
+
/*
* PSR bits
*/
#ifndef __ASSEMBLY__
-/* this struct defines the way the registers are stored on the
- stack during a system call. */
-
+/*
+ * This struct defines the way the registers are stored on the
+ * stack during a system call. Note that sizeof(struct pt_regs)
+ * has to be a multiple of 8.
+ */
struct pt_regs {
long uregs[18];
};