On 02/21/2012 09:30 AM, Will Drewry wrote:

+
+/**
+ * struct seccomp_data - the format the BPF program executes over.
+ * @args: up to 6 system call arguments.  When the calling convention is
+ *        32-bit, the arguments will still be at each args[X] offset.
+ * @instruction_pointer: at the time of the system call.
+ * @arch: indicates system call convention as an AUDIT_ARCH_* value
+ *        as defined in <linux/audit.h>.
+ * @nr: the system call number
+ */
+struct seccomp_data {
+	__u64 args[6];
+	__u64 instruction_pointer;
+	__u32 arch;
+	int nr;
+};
 

This got flipped around for some reason... that is a problem if we ever
need to extend this to more than 6 arguments (I thought we had at least
one architecture which supported 7 arguments already, but I could just
be delusional.)

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.