On 01/18/2014 01:46 AM, Will Deacon wrote:
Hi Akashi,
On Fri, Jan 17, 2014 at 08:13:17AM +0000, AKASHI Takahiro wrote:
Generic audit code also support compat system calls now. This patch adds a small piece of architecture dependent code.
[...]
static inline int syscall_get_nr(struct task_struct *task, @@ -109,6 +110,15 @@ static inline void syscall_set_arguments(struct task_struct *task, static inline int syscall_get_arch(struct task_struct *task, struct pt_regs *regs) { +#ifdef CONFIG_COMPAT
- if (is_compat_thread(task_thread_info(task)))
You can call is_compat_thread even when !CONFIG_COMPAT, so you don't need that #ifdef.
Right. I will remove it.
+#ifdef __AARCH64EB__
return AUDIT_ARCH_ARMEB; /* only BE on BE */Well, actually, we only support userspace to be the same endianness as the kernel, so you that comment is slightly misleading. You could probably avoid these repeated ifdefs by defining things like ARM64_AUDIT_ARCH and ARM64_COMPAT_AUDIT_ARCH once depending on endianness.
As in the discussions about "audit(userspace)", if we don't have to care about endianness, I will remove this #ifdef instead.
Thanks, -Takahiro AKASHI
Will