[PATCH v6 08/27] csky: define syscall_get_arch()

From: Dmitry V. Levin
Date: Thu Dec 13 2018 - 12:22:13 EST


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 <guoren@xxxxxxxxxx>
Cc: Paul Moore <paul@xxxxxxxxxxxxxx>
Cc: Eric Paris <eparis@xxxxxxxxxx>
Cc: Oleg Nesterov <oleg@xxxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxx>
Cc: Elvira Khabirova <lineprinter@xxxxxxxxxxxx>
Cc: Eugene Syromyatnikov <esyr@xxxxxxxxxx>
Cc: linux-audit@xxxxxxxxxx
Signed-off-by: Dmitry V. Levin <ldv@xxxxxxxxxxxx>
---

Notes:
v6: unchanged

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
index 926a64a8b4ee..d637445737b7 100644
--- 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
index 72aeea0a740d..55904a40d768 100644
--- a/include/uapi/linux/audit.h
+++ b/include/uapi/linux/audit.h
@@ -384,6 +384,7 @@ enum {
#define AUDIT_ARCH_C6X (EM_TI_C6000|__AUDIT_ARCH_LE)
#define AUDIT_ARCH_C6XBE (EM_TI_C6000)
#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)
--
ldv