#define instruction_pointer(regs) ((regs)->nip)
#define user_mode(regs) ((((regs)->msr) >> MSR_PR_LG) & 0x1)
+#define force_successful_syscall_return() \
+ (current_thread_info()->syscall_noerror = 1)
+
+/*
+ * We use the least-significant bit of the trap field to indicate
+ * whether we have saved the full set of registers, or only a
+ * partial set. A 1 there means the partial set.
+ */
+#define FULL_REGS(regs) (((regs)->trap & 1) == 0)
+#define TRAP(regs) ((regs)->trap & ~0xF)
+#define CHECK_FULL_REGS(regs) BUG_ON(regs->trap & 1)
+
/*
* Offsets used by 'ptrace' system call interface.
*/