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Date:	Thu, 29 Mar 2012 15:01:52 -0500
From:	Will Drewry <>
	Will Drewry <>
Subject: [PATCH v17 07/15] asm/syscall.h: add syscall_get_arch

Adds a stub for a function that will return the AUDIT_ARCH_*
value appropriate to the supplied task based on the system
call convention.

For audit's use, the value can generally be hard-coded at the
audit-site.  However, for other functionality not inlined into
syscall entry/exit, this makes that information available.
seccomp_filter is the first planned consumer and, as such,
the comment indicates a tie to HAVE_ARCH_SECCOMP_FILTER.  That
is probably an unneeded detail.

Acked-by: Serge Hallyn <>
Suggested-by: Roland McGrath <>
Signed-off-by: Will Drewry <>

v14..v17: rebase/nochanges
v13: rebase on to 88ebdda6159ffc15699f204c33feb3e431bf9bdc
v12: rebase on to linux-next
v11: fixed improper return type
v10: introduced
 include/asm-generic/syscall.h |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)

diff --git a/include/asm-generic/syscall.h b/include/asm-generic/syscall.h
index 5c122ae..a2c13dc 100644
--- a/include/asm-generic/syscall.h
+++ b/include/asm-generic/syscall.h
@@ -142,4 +142,18 @@ void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,
 			   unsigned int i, unsigned int n,
 			   const unsigned long *args);
+ * syscall_get_arch - return the AUDIT_ARCH for the current system call
+ * @task:	task of interest, must be in system call entry tracing
+ * @regs:	task_pt_regs() of @task
+ *
+ * Returns the AUDIT_ARCH_* based on the system call convention in use.
+ *
+ * It's only valid to call this when @task is stopped on entry to a system
+ *
+ * Note, at present this function is only required with
+ */
+int syscall_get_arch(struct task_struct *task, struct pt_regs *regs);
 #endif	/* _ASM_SYSCALL_H */

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