csky: define syscall_get_arch()

ldv-alt · guoren83 · commit d770b2565344 · 2018-12-30T21:21:24.000+08:00
syscall_get_arch() is required to be implemented on all architectures
in order to extend the generic ptrace API with PTRACE_GET_SYSCALL_INFO
request.

Cc: Guo Ren &lt;guoren@kernel.org&gt;
Cc: Paul Moore &lt;paul@paul-moore.com&gt;
Cc: Eric Paris &lt;eparis@redhat.com&gt;
Cc: Oleg Nesterov &lt;oleg@redhat.com&gt;
Cc: Andy Lutomirski &lt;luto@kernel.org&gt;
Cc: Elvira Khabirova &lt;lineprinter@altlinux.org&gt;
Cc: Eugene Syromyatnikov &lt;esyr@redhat.com&gt;
Cc: linux-audit@redhat.com
Signed-off-by: Dmitry V. Levin &lt;ldv@altlinux.org&gt;
Signed-off-by: Guo Ren &lt;guoren@kernel.org&gt;

 arch/csky/include/asm/syscall.h | 7 +++++++
 include/uapi/linux/audit.h      | 1 +
 2 files changed, 8 insertions(+)
diff --git a/arch/csky/include/asm/syscall.h b/arch/csky/include/asm/syscall.h
@@ -6,6 +6,7 @@
 #include <linux/sched.h>
 #include <linux/err.h>
 #include <abi/regdef.h>
+#include <uapi/linux/audit.h>
 
 static inline int
 syscall_get_nr(struct task_struct *task, struct pt_regs *regs)
@@ -68,4 +69,10 @@ syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,
 	memcpy(&regs->a1 + i * sizeof(regs->a1), args, n * sizeof(regs->a0));
 }
 
+static inline int
+syscall_get_arch(void)
+{
+	return AUDIT_ARCH_CSKY;
+}
+
 #endif	/* __ASM_SYSCALL_H */
diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
@@ -378,6 +378,7 @@ enum {
 #define AUDIT_ARCH_ARM		(EM_ARM|__AUDIT_ARCH_LE)
 #define AUDIT_ARCH_ARMEB	(EM_ARM)
 #define AUDIT_ARCH_CRIS		(EM_CRIS|__AUDIT_ARCH_LE)
+#define AUDIT_ARCH_CSKY		(EM_CSKY|__AUDIT_ARCH_LE)
 #define AUDIT_ARCH_FRV		(EM_FRV)
 #define AUDIT_ARCH_I386		(EM_386|__AUDIT_ARCH_LE)
 #define AUDIT_ARCH_IA64		(EM_IA_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
